source file first commit, folder structure refact

Makefile

@@ -0,0 +1,174 @@
+#  copyright (c) 2010 Espressif System
+#
+ifndef PDIR
+
+endif
+
+AR = xt-ar
+CC = xt-xcc
+NM = xt-nm
+CPP = xt-cpp
+OBJCOPY = xt-objcopy
+#MAKE = xt-make
+
+CSRCS ?= $(wildcard *.c)
+ASRCs ?= $(wildcard *.s)
+ASRCS ?= $(wildcard *.S)
+SUBDIRS ?= $(patsubst %/,%,$(dir $(wildcard */Makefile)))
+
+ODIR := .output
+OBJODIR := $(ODIR)/$(TARGET)/$(FLAVOR)/obj
+
+OBJS := $(CSRCS:%.c=$(OBJODIR)/%.o) \
+        $(ASRCs:%.s=$(OBJODIR)/%.o) \
+        $(ASRCS:%.S=$(OBJODIR)/%.o)
+
+DEPS := $(CSRCS:%.c=$(OBJODIR)/%.d) \
+        $(ASRCs:%.s=$(OBJODIR)/%.d) \
+        $(ASRCS:%.S=$(OBJODIR)/%.d)
+
+LIBODIR := $(ODIR)/$(TARGET)/$(FLAVOR)/lib
+OLIBS := $(GEN_LIBS:%=$(LIBODIR)/%)
+
+IMAGEODIR := $(ODIR)/$(TARGET)/$(FLAVOR)/image
+OIMAGES := $(GEN_IMAGES:%=$(IMAGEODIR)/%)
+
+BINODIR := $(ODIR)/$(TARGET)/$(FLAVOR)/bin
+OBINS := $(GEN_BINS:%=$(BINODIR)/%)
+
+CCFLAGS += 			\
+	-g			\
+	-O2			\
+	-Wpointer-arith		\
+	-Wundef			\
+	-Werror			\
+	-Wl,-EL			\
+	-fno-inline-functions	\
+	-nostdlib       \
+	-mlongcalls	\
+	-mtext-section-literals
+#	-Wall			
+
+CFLAGS = $(CCFLAGS) $(DEFINES) $(EXTRA_CCFLAGS) $(INCLUDES)
+DFLAGS = $(CCFLAGS) $(DDEFINES) $(EXTRA_CCFLAGS) $(INCLUDES)
+
+
+#############################################################
+# Functions
+#
+
+define ShortcutRule
+$(1): .subdirs $(2)/$(1)
+endef
+
+define MakeLibrary
+DEP_LIBS_$(1) = $$(foreach lib,$$(filter %.a,$$(COMPONENTS_$(1))),$$(dir $$(lib))$$(LIBODIR)/$$(notdir $$(lib)))
+DEP_OBJS_$(1) = $$(foreach obj,$$(filter %.o,$$(COMPONENTS_$(1))),$$(dir $$(obj))$$(OBJODIR)/$$(notdir $$(obj)))
+$$(LIBODIR)/$(1).a: $$(OBJS) $$(DEP_OBJS_$(1)) $$(DEP_LIBS_$(1)) $$(DEPENDS_$(1))
+	@mkdir -p $$(LIBODIR)
+	$$(if $$(filter %.a,$$?),mkdir -p $$(EXTRACT_DIR)_$(1))
+	$$(if $$(filter %.a,$$?),cd $$(EXTRACT_DIR)_$(1); $$(foreach lib,$$(filter %.a,$$?),$$(AR) xo $$(UP_EXTRACT_DIR)/$$(lib);))
+	$$(AR) ru $$@ $$(filter %.o,$$?) $$(if $$(filter %.a,$$?),$$(EXTRACT_DIR)_$(1)/*.o)
+	$$(if $$(filter %.a,$$?),$$(RM) -r $$(EXTRACT_DIR)_$(1))
+endef
+
+define MakeImage
+DEP_LIBS_$(1) = $$(foreach lib,$$(filter %.a,$$(COMPONENTS_$(1))),$$(dir $$(lib))$$(LIBODIR)/$$(notdir $$(lib)))
+DEP_OBJS_$(1) = $$(foreach obj,$$(filter %.o,$$(COMPONENTS_$(1))),$$(dir $$(obj))$$(OBJODIR)/$$(notdir $$(obj)))
+$$(IMAGEODIR)/$(1).out: $$(OBJS) $$(DEP_OBJS_$(1)) $$(DEP_LIBS_$(1)) $$(DEPENDS_$(1))
+	@mkdir -p $$(IMAGEODIR)
+	$$(CC) $$(LDFLAGS) $$(if $$(LINKFLAGS_$(1)),$$(LINKFLAGS_$(1)),$$(LINKFLAGS_DEFAULT) $$(OBJS) $$(DEP_OBJS_$(1)) $$(DEP_LIBS_$(1))) -o $$@ 
+endef
+
+$(BINODIR)/%.bin: $(IMAGEODIR)/%.out
+	@mkdir -p $(BINODIR)
+	$(OBJCOPY) -O binary $< $@
+
+#############################################################
+# Rules base
+# Should be done in top-level makefile only
+#
+
+all:	.subdirs $(OBJS) $(OLIBS) $(OIMAGES) $(OBINS) $(SPECIAL_MKTARGETS)
+
+clean:
+	$(foreach d, $(SUBDIRS), $(MAKE) -C $(d) clean;)
+	$(RM) -r $(ODIR)/$(TARGET)/$(FLAVOR)
+
+clobber: $(SPECIAL_CLOBBER)
+	$(foreach d, $(SUBDIRS), $(MAKE) -C $(d) clobber;)
+	$(RM) -r $(ODIR)
+
+.subdirs:
+	@set -e; $(foreach d, $(SUBDIRS), $(MAKE) -C $(d);)
+
+#.subdirs:
+#	$(foreach d, $(SUBDIRS), $(MAKE) -C $(d))
+
+ifneq ($(MAKECMDGOALS),clean)
+ifneq ($(MAKECMDGOALS),clobber)
+ifdef DEPS
+sinclude $(DEPS)
+endif
+endif
+endif
+
+$(OBJODIR)/%.o: %.c
+	@mkdir -p $(OBJODIR);
+	$(CC) $(if $(findstring $<,$(DSRCS)),$(DFLAGS),$(CFLAGS)) $(COPTS_$(*F)) -o $@ -c $<
+
+$(OBJODIR)/%.d: %.c
+	@mkdir -p $(OBJODIR);
+	@echo DEPEND: $(CC) -M $(CFLAGS) $<
+	@set -e; rm -f $@; \
+	$(CC) -M $(CFLAGS) $< > $@.$$$$; \
+	sed 's,\($*\.o\)[ :]*,$(OBJODIR)/\1 $@ : ,g' < $@.$$$$ > $@; \
+	rm -f $@.$$$$
+
+$(OBJODIR)/%.o: %.s
+	@mkdir -p $(OBJODIR);
+	$(CC) $(CFLAGS) -o $@ -c $<
+
+$(OBJODIR)/%.d: %.s
+	@mkdir -p $(OBJODIR); \
+	set -e; rm -f $@; \
+	$(CC) -M $(CFLAGS) $< > $@.$$$$; \
+	sed 's,\($*\.o\)[ :]*,$(OBJODIR)/\1 $@ : ,g' < $@.$$$$ > $@; \
+	rm -f $@.$$$$
+
+$(OBJODIR)/%.o: %.S
+	@mkdir -p $(OBJODIR);
+	$(CC) $(CFLAGS) -D__ASSEMBLER__ -o $@ -c $<
+
+$(OBJODIR)/%.d: %.S
+	@mkdir -p $(OBJODIR); \
+	set -e; rm -f $@; \
+	$(CC) -M $(CFLAGS) $< > $@.$$$$; \
+	sed 's,\($*\.o\)[ :]*,$(OBJODIR)/\1 $@ : ,g' < $@.$$$$ > $@; \
+	rm -f $@.$$$$
+
+$(foreach lib,$(GEN_LIBS),$(eval $(call ShortcutRule,$(lib),$(LIBODIR))))
+
+$(foreach image,$(GEN_IMAGES),$(eval $(call ShortcutRule,$(image),$(IMAGEODIR))))
+
+$(foreach bin,$(GEN_BINS),$(eval $(call ShortcutRule,$(bin),$(BINODIR))))
+
+$(foreach lib,$(GEN_LIBS),$(eval $(call MakeLibrary,$(basename $(lib)))))
+
+$(foreach image,$(GEN_IMAGES),$(eval $(call MakeImage,$(basename $(image)))))
+
+#############################################################
+# Recursion Magic - Don't touch this!!
+#
+# Each subtree potentially has an include directory
+#   corresponding to the common APIs applicable to modules
+#   rooted at that subtree. Accordingly, the INCLUDE PATH
+#   of a module can only contain the include directories up
+#   its parent path, and not its siblings
+#
+# Required for each makefile to inherit from the parent
+#
+
+INCLUDES := $(INCLUDES) -I $(PDIR)include -I $(PDIR)include/$(TARGET)
+PDIR := ../$(PDIR)
+sinclude $(PDIR)Makefile

README.md

@@ -1,12 +1,26 @@
 # **NodeMcu** #
+version 0.9.4
 ###A lua based firmware for wifi-soc esp8266
-version 0.9.2 build 2014-12-19
+Build on [ESP8266 sdk 0.9.4](http://bbs.espressif.com/viewtopic.php?f=5&t=90)
+Lua core based on [eLua project](http://www.eluaproject.net/)
+File system based on [spiffs](https://github.com/pellepl/spiffs)
+Open source development kit for NodeMCU [nodemcu-devkit](https://github.com/nodemcu/nodemcu-devkit)
+Flash tool for NodeMCU [nodemcu-flasher](https://github.com/nodemcu/nodemcu-flasher)
+
+wiki: [nodemcu wiki](https://github.com/nodemcu/nodemcu-firmware/wiki)
+home: [nodemcu.com](http://www.nodemcu.com)
+bbs: [中文论坛Chinese bbs](http://bbs.nodemcu.com)
+Tencent QQ group QQ群: 309957875
+
 # Change log
+2014-12-22<br />
+update to sdk 0.9.4<br />
+opensource
+
 2014-12-19<br />
 **Important** Re-arrange GPIO MAP due to development kit.[New Gpio Map](#new_gpio_map)<br />
 Add bitwise operation module.<br />
-Modify net.socket:connect() api to accept domain name, auto DNS.<br />
+Modify net.socket:connect() api to accept domain name, auto DNS.
-Add firmware for flash size 1Mbytes, 2Mbytes, 4Mbytes.
 
 
 [more change log](https://github.com/nodemcu/nodemcu-firmware/wiki/nodemcu_api_en#change_log)<br />
@@ -86,6 +100,30 @@ Add firmware for flash size 1Mbytes, 2Mbytes, 4Mbytes.
    </tr>
 </table>
 
+#Build option
+####file ./app/include/user_config.h
+```c
+#define FLASH_512K
+// #define FLASH_1M
+// #define FLASH_2M
+// #define FLASH_4M
+...
+#define LUA_USE_MODULES
+#ifdef LUA_USE_MODULES
+#define LUA_USE_MODULES_NODE
+#define LUA_USE_MODULES_FILE
+#define LUA_USE_MODULES_GPIO
+#define LUA_USE_MODULES_WIFI
+#define LUA_USE_MODULES_NET
+#define LUA_USE_MODULES_PWM
+#define LUA_USE_MODULES_I2C
+#define LUA_USE_MODULES_TMR
+#define LUA_USE_MODULES_ADC
+#define LUA_USE_MODULES_UART
+#define LUA_USE_MODULES_OW
+//#define LUA_USE_MODULES_BIT
+#endif /* LUA_USE_MODULES */
+```
 
 #Flash the firmware
 nodemcu_512k.bin: 0x00000<br />
@@ -227,9 +265,3 @@ braudrate:9600
     t = nil
     package.loaded["ds18b20"]=nil   
 ```
-
-#Check this out
-Tencent QQ group: 309957875<br/>
-[nodemcu wiki](https://github.com/nodemcu/nodemcu-firmware/wiki)<br/>
-[nodemcu.com](http://www.nodemcu.com)
-[中文bbs](http://bbs.nodemcu.com)

app/.gitignore

@@ -0,0 +1,2 @@
+*.output*
+!.gitignore

app/Makefile

@@ -0,0 +1,166 @@
+#############################################################
+# Required variables for each makefile
+# Discard this section from all parent makefiles
+# Expected variables (with automatic defaults):
+#   CSRCS (all "C" files in the dir)
+#   SUBDIRS (all subdirs with a Makefile)
+#   GEN_LIBS - list of libs to be generated ()
+#   GEN_IMAGES - list of object file images to be generated ()
+#   GEN_BINS - list of binaries to be generated ()
+#   COMPONENTS_xxx - a list of libs/objs in the form
+#     subdir/lib to be extracted and rolled up into
+#     a generated lib/image xxx.a ()
+#
+TARGET = eagle
+#FLAVOR = release
+FLAVOR = debug
+
+#EXTRA_CCFLAGS += -u
+
+ifndef PDIR # {
+GEN_IMAGES= eagle.app.v6.out
+GEN_BINS= eagle.app.v6.bin
+SPECIAL_MKTARGETS=$(APP_MKTARGETS)
+SUBDIRS=    \
+	user	\
+	driver	\
+	lwip	\
+	json	\
+	ssl	\
+	upgrade	\
+	platform	\
+	libc 	\
+	lua 	\
+	smart 	\
+	wofs 	\
+	modules	\
+	spiffs
+
+endif # } PDIR
+
+APPDIR = .
+LDDIR = ../ld
+
+CCFLAGS += -Os
+
+TARGET_LDFLAGS =		\
+	-nostdlib		\
+	-Wl,-EL \
+	--longcalls \
+	--text-section-literals
+
+ifeq ($(FLAVOR),debug)
+    TARGET_LDFLAGS += -g -O2
+endif
+
+ifeq ($(FLAVOR),release)
+    TARGET_LDFLAGS += -g -O0
+endif
+
+LD_FILE = $(LDDIR)/eagle.app.v6.ld
+
+ifeq ($(APP), 1)
+	LD_FILE = $(LDDIR)/eagle.app.v6.app1.ld
+endif
+
+ifeq ($(APP), 2)
+	LD_FILE = $(LDDIR)/eagle.app.v6.app2.ld
+endif
+
+COMPONENTS_eagle.app.v6 = \
+	user/libuser.a	\
+	driver/libdriver.a	\
+	lwip/liblwip.a	\
+	json/libjson.a	\
+	ssl/libssl.a	\
+	upgrade/libupgrade.a	\
+	platform/libplatform.a	\
+	libc/liblibc.a 	\
+	lua/liblua.a 	\
+	smart/smart.a 	\
+	wofs/wofs.a 	\
+	spiffs/spiffs.a 	\
+	modules/libmodules.a
+
+LINKFLAGS_eagle.app.v6 = \
+	-L../lib        \
+	-nostdlib	\
+    -T$(LD_FILE)   \
+	-Wl,--no-check-sections	\
+    -u call_user_start	\
+	-Wl,-static						\
+	-Wl,--start-group					\
+	-lc					\
+	-lgcc					\
+	-lhal					\
+	-lphy	\
+	-lpp	\
+	-lnet80211	\
+	-lwpa	\
+	-lmain	\
+	-ljson	\
+	$(DEP_LIBS_eagle.app.v6)					\
+	-Wl,--end-group
+
+DEPENDS_eagle.app.v6 = \
+                $(LD_FILE) \
+                $(LDDIR)/eagle.rom.addr.v6.ld
+
+#############################################################
+# Configuration i.e. compile options etc.
+# Target specific stuff (defines etc.) goes in here!
+# Generally values applying to a tree are captured in the
+#   makefile at its root level - these are then overridden
+#   for a subtree within the makefile rooted therein
+#
+
+#UNIVERSAL_TARGET_DEFINES =		\
+
+# Other potential configuration flags include:
+#	-DTXRX_TXBUF_DEBUG
+#	-DTXRX_RXBUF_DEBUG
+#	-DWLAN_CONFIG_CCX
+CONFIGURATION_DEFINES =	-D__ets__ \
+			-DICACHE_FLASH	\
+			-DLWIP_OPEN_SRC	\
+			-DPBUF_RSV_FOR_WLAN	\
+			-DEBUF_LWIP
+
+DEFINES +=				\
+	$(UNIVERSAL_TARGET_DEFINES)	\
+	$(CONFIGURATION_DEFINES)
+
+DDEFINES +=				\
+	$(UNIVERSAL_TARGET_DEFINES)	\
+	$(CONFIGURATION_DEFINES)
+
+
+#############################################################
+# Recursion Magic - Don't touch this!!
+#
+# Each subtree potentially has an include directory
+#   corresponding to the common APIs applicable to modules
+#   rooted at that subtree. Accordingly, the INCLUDE PATH
+#   of a module can only contain the include directories up
+#   its parent path, and not its siblings
+#
+# Required for each makefile to inherit from the parent
+#
+
+INCLUDES := $(INCLUDES) -I $(PDIR)include
+INCLUDES += -I ./
+PDIR := ../$(PDIR)
+sinclude $(PDIR)Makefile
+
+#########################################################################
+#
+#  generate bin file
+#
+
+$(BINODIR)/%.bin: $(IMAGEODIR)/%.out
+	@mkdir -p $(BINODIR)
+	$(OBJCOPY) -O binary $< $@
+
+.PHONY: FORCE
+FORCE:
+

app/driver/Makefile

@@ -0,0 +1,45 @@
+
+#############################################################
+# Required variables for each makefile
+# Discard this section from all parent makefiles
+# Expected variables (with automatic defaults):
+#   CSRCS (all "C" files in the dir)
+#   SUBDIRS (all subdirs with a Makefile)
+#   GEN_LIBS - list of libs to be generated ()
+#   GEN_IMAGES - list of images to be generated ()
+#   COMPONENTS_xxx - a list of libs/objs in the form
+#     subdir/lib to be extracted and rolled up into
+#     a generated lib/image xxx.a ()
+#
+ifndef PDIR
+GEN_LIBS = libdriver.a
+endif
+
+
+#############################################################
+# Configuration i.e. compile options etc.
+# Target specific stuff (defines etc.) goes in here!
+# Generally values applying to a tree are captured in the
+#   makefile at its root level - these are then overridden
+#   for a subtree within the makefile rooted therein
+#
+#DEFINES += 
+
+#############################################################
+# Recursion Magic - Don't touch this!!
+#
+# Each subtree potentially has an include directory
+#   corresponding to the common APIs applicable to modules
+#   rooted at that subtree. Accordingly, the INCLUDE PATH
+#   of a module can only contain the include directories up
+#   its parent path, and not its siblings
+#
+# Required for each makefile to inherit from the parent
+#
+
+INCLUDES := $(INCLUDES) -I $(PDIR)include
+INCLUDES += -I ./
+INCLUDES += -I ../platform
+PDIR := ../$(PDIR)
+sinclude $(PDIR)Makefile
+

app/driver/gpio16.c

@@ -0,0 +1,42 @@
+#include "ets_sys.h"
+#include "osapi.h"
+#include "driver/gpio16.h"
+
+void ICACHE_FLASH_ATTR
+gpio16_output_conf(void)
+{
+    WRITE_PERI_REG(PAD_XPD_DCDC_CONF,
+                   (READ_PERI_REG(PAD_XPD_DCDC_CONF) & 0xffffffbc) | (uint32)0x1); 	// mux configuration for XPD_DCDC to output rtc_gpio0
+
+    WRITE_PERI_REG(RTC_GPIO_CONF,
+                   (READ_PERI_REG(RTC_GPIO_CONF) & (uint32)0xfffffffe) | (uint32)0x0);	//mux configuration for out enable
+
+    WRITE_PERI_REG(RTC_GPIO_ENABLE,
+                   (READ_PERI_REG(RTC_GPIO_ENABLE) & (uint32)0xfffffffe) | (uint32)0x1);	//out enable
+}
+
+void ICACHE_FLASH_ATTR
+gpio16_output_set(uint8 value)
+{
+    WRITE_PERI_REG(RTC_GPIO_OUT,
+                   (READ_PERI_REG(RTC_GPIO_OUT) & (uint32)0xfffffffe) | (uint32)(value & 1));
+}
+
+void ICACHE_FLASH_ATTR
+gpio16_input_conf(void)
+{
+    WRITE_PERI_REG(PAD_XPD_DCDC_CONF,
+                   (READ_PERI_REG(PAD_XPD_DCDC_CONF) & 0xffffffbc) | (uint32)0x1); 	// mux configuration for XPD_DCDC and rtc_gpio0 connection
+
+    WRITE_PERI_REG(RTC_GPIO_CONF,
+                   (READ_PERI_REG(RTC_GPIO_CONF) & (uint32)0xfffffffe) | (uint32)0x0);	//mux configuration for out enable
+
+    WRITE_PERI_REG(RTC_GPIO_ENABLE,
+                   READ_PERI_REG(RTC_GPIO_ENABLE) & (uint32)0xfffffffe);	//out disable
+}
+
+uint8 ICACHE_FLASH_ATTR
+gpio16_input_get(void)
+{
+    return (uint8)(READ_PERI_REG(RTC_GPIO_IN_DATA) & 1);
+}

app/driver/i2c_master.c

@@ -0,0 +1,293 @@
+/******************************************************************************
+ * Copyright 2013-2014 Espressif Systems (Wuxi)
+ *
+ * FileName: i2c_master.c
+ *
+ * Description: i2c master API
+ *
+ * Modification history:
+ *     2014/3/12, v1.0 create this file.
+*******************************************************************************/
+#include "ets_sys.h"
+#include "osapi.h"
+#include "gpio.h"
+
+#include "driver/i2c_master.h"
+
+#include "pin_map.h"
+
+LOCAL uint8 m_nLastSDA;
+LOCAL uint8 m_nLastSCL;
+
+LOCAL uint8 pinSDA = 2;
+LOCAL uint8 pinSCL = 15;
+
+/******************************************************************************
+ * FunctionName : i2c_master_setDC
+ * Description  : Internal used function -
+ *                    set i2c SDA and SCL bit value for half clk cycle
+ * Parameters   : uint8 SDA
+ *                uint8 SCL
+ * Returns      : NONE
+*******************************************************************************/
+LOCAL void ICACHE_FLASH_ATTR
+i2c_master_setDC(uint8 SDA, uint8 SCL)
+{
+    SDA	&= 0x01;
+    SCL	&= 0x01;
+    m_nLastSDA = SDA;
+    m_nLastSCL = SCL;
+
+    if ((0 == SDA) && (0 == SCL)) {
+        I2C_MASTER_SDA_LOW_SCL_LOW();
+    } else if ((0 == SDA) && (1 == SCL)) {
+        I2C_MASTER_SDA_LOW_SCL_HIGH();
+    } else if ((1 == SDA) && (0 == SCL)) {
+        I2C_MASTER_SDA_HIGH_SCL_LOW();
+    } else {
+        I2C_MASTER_SDA_HIGH_SCL_HIGH();
+    }
+}
+
+/******************************************************************************
+ * FunctionName : i2c_master_getDC
+ * Description  : Internal used function -
+ *                    get i2c SDA bit value
+ * Parameters   : NONE
+ * Returns      : uint8 - SDA bit value
+*******************************************************************************/
+LOCAL uint8 ICACHE_FLASH_ATTR
+i2c_master_getDC(void)
+{
+    uint8 sda_out;
+    sda_out = GPIO_INPUT_GET(GPIO_ID_PIN(I2C_MASTER_SDA_GPIO));
+    return sda_out;
+}
+
+/******************************************************************************
+ * FunctionName : i2c_master_init
+ * Description  : initilize I2C bus to enable i2c operations
+ * Parameters   : NONE
+ * Returns      : NONE
+*******************************************************************************/
+void ICACHE_FLASH_ATTR
+i2c_master_init(void)
+{
+    uint8 i;
+
+    i2c_master_setDC(1, 0);
+    i2c_master_wait(5);
+
+    // when SCL = 0, toggle SDA to clear up
+    i2c_master_setDC(0, 0) ;
+    i2c_master_wait(5);
+    i2c_master_setDC(1, 0) ;
+    i2c_master_wait(5);
+
+    // set data_cnt to max value
+    for (i = 0; i < 28; i++) {
+        i2c_master_setDC(1, 0);
+        i2c_master_wait(5);	// sda 1, scl 0
+        i2c_master_setDC(1, 1);
+        i2c_master_wait(5);	// sda 1, scl 1
+    }
+
+    // reset all
+    i2c_master_stop();
+    return;
+}
+
+uint8 i2c_master_get_pinSDA(){
+    return pinSDA;
+}
+
+uint8 i2c_master_get_pinSCL(){
+    return pinSCL;
+}
+
+/******************************************************************************
+ * FunctionName : i2c_master_gpio_init
+ * Description  : config SDA and SCL gpio to open-drain output mode,
+ *                mux and gpio num defined in i2c_master.h
+ * Parameters   : NONE
+ * Returns      : NONE
+*******************************************************************************/
+void ICACHE_FLASH_ATTR
+i2c_master_gpio_init(uint8 sda, uint8 scl)
+{
+    pinSDA = pin_num[sda];
+    pinSCL = pin_num[scl];
+
+    ETS_GPIO_INTR_DISABLE() ;
+//    ETS_INTR_LOCK();
+
+    PIN_FUNC_SELECT(I2C_MASTER_SDA_MUX, I2C_MASTER_SDA_FUNC);
+    PIN_FUNC_SELECT(I2C_MASTER_SCL_MUX, I2C_MASTER_SCL_FUNC);
+
+    GPIO_REG_WRITE(GPIO_PIN_ADDR(GPIO_ID_PIN(I2C_MASTER_SDA_GPIO)), GPIO_REG_READ(GPIO_PIN_ADDR(GPIO_ID_PIN(I2C_MASTER_SDA_GPIO))) | GPIO_PIN_PAD_DRIVER_SET(GPIO_PAD_DRIVER_ENABLE)); //open drain;
+    GPIO_REG_WRITE(GPIO_ENABLE_ADDRESS, GPIO_REG_READ(GPIO_ENABLE_ADDRESS) | (1 << I2C_MASTER_SDA_GPIO));
+    GPIO_REG_WRITE(GPIO_PIN_ADDR(GPIO_ID_PIN(I2C_MASTER_SCL_GPIO)), GPIO_REG_READ(GPIO_PIN_ADDR(GPIO_ID_PIN(I2C_MASTER_SCL_GPIO))) | GPIO_PIN_PAD_DRIVER_SET(GPIO_PAD_DRIVER_ENABLE)); //open drain;
+    GPIO_REG_WRITE(GPIO_ENABLE_ADDRESS, GPIO_REG_READ(GPIO_ENABLE_ADDRESS) | (1 << I2C_MASTER_SCL_GPIO));
+
+    I2C_MASTER_SDA_HIGH_SCL_HIGH();
+
+    ETS_GPIO_INTR_ENABLE() ;
+//    ETS_INTR_UNLOCK();
+
+    i2c_master_init();
+}
+
+/******************************************************************************
+ * FunctionName : i2c_master_start
+ * Description  : set i2c to send state
+ * Parameters   : NONE
+ * Returns      : NONE
+*******************************************************************************/
+void ICACHE_FLASH_ATTR
+i2c_master_start(void)
+{
+    i2c_master_setDC(1, m_nLastSCL);
+    i2c_master_wait(5);
+    i2c_master_setDC(1, 1);
+    i2c_master_wait(5);	// sda 1, scl 1
+    i2c_master_setDC(0, 1);
+    i2c_master_wait(5);	// sda 0, scl 1
+}
+
+/******************************************************************************
+ * FunctionName : i2c_master_stop
+ * Description  : set i2c to stop sending state
+ * Parameters   : NONE
+ * Returns      : NONE
+*******************************************************************************/
+void ICACHE_FLASH_ATTR
+i2c_master_stop(void)
+{
+    i2c_master_wait(5);
+
+    i2c_master_setDC(0, m_nLastSCL);
+    i2c_master_wait(5);	// sda 0
+    i2c_master_setDC(0, 1);
+    i2c_master_wait(5);	// sda 0, scl 1
+    i2c_master_setDC(1, 1);
+    i2c_master_wait(5);	// sda 1, scl 1
+}
+
+/******************************************************************************
+ * FunctionName : i2c_master_setAck
+ * Description  : set ack to i2c bus as level value
+ * Parameters   : uint8 level - 0 or 1
+ * Returns      : NONE
+*******************************************************************************/
+void ICACHE_FLASH_ATTR
+i2c_master_setAck(uint8 level)
+{
+    i2c_master_setDC(m_nLastSDA, 0);
+    i2c_master_wait(5);
+    i2c_master_setDC(level, 0);
+    i2c_master_wait(5);	// sda level, scl 0
+    i2c_master_setDC(level, 1);
+    i2c_master_wait(8);	// sda level, scl 1
+    i2c_master_setDC(level, 0);
+    i2c_master_wait(5);	// sda level, scl 0
+    i2c_master_setDC(1, 0);
+    i2c_master_wait(5);
+}
+
+/******************************************************************************
+ * FunctionName : i2c_master_getAck
+ * Description  : confirm if peer send ack
+ * Parameters   : NONE
+ * Returns      : uint8 - ack value, 0 or 1
+*******************************************************************************/
+uint8 ICACHE_FLASH_ATTR
+i2c_master_getAck(void)
+{
+    uint8 retVal;
+    i2c_master_setDC(m_nLastSDA, 0);
+    i2c_master_wait(5);
+    i2c_master_setDC(1, 0);
+    i2c_master_wait(5);
+    i2c_master_setDC(1, 1);
+    i2c_master_wait(5);
+
+    retVal = i2c_master_getDC();
+    i2c_master_wait(5);
+    i2c_master_setDC(1, 0);
+    i2c_master_wait(5);
+
+    return retVal;
+}
+
+/******************************************************************************
+ * FunctionName : i2c_master_readByte
+ * Description  : read Byte from i2c bus
+ * Parameters   : NONE
+ * Returns      : uint8 - readed value
+*******************************************************************************/
+uint8 ICACHE_FLASH_ATTR
+i2c_master_readByte(void)
+{
+    uint8 retVal = 0;
+    uint8 k, i;
+
+    i2c_master_wait(5);
+    i2c_master_setDC(m_nLastSDA, 0);
+    i2c_master_wait(5);	// sda 1, scl 0
+
+    for (i = 0; i < 8; i++) {
+        i2c_master_wait(5);
+        i2c_master_setDC(1, 0);
+        i2c_master_wait(5);	// sda 1, scl 0
+        i2c_master_setDC(1, 1);
+        i2c_master_wait(5);	// sda 1, scl 1
+
+        k = i2c_master_getDC();
+        i2c_master_wait(5);
+
+        if (i == 7) {
+            i2c_master_wait(3);   ////
+        }
+
+        k <<= (7 - i);
+        retVal |= k;
+    }
+
+    i2c_master_setDC(1, 0);
+    i2c_master_wait(5);	// sda 1, scl 0
+
+    return retVal;
+}
+
+/******************************************************************************
+ * FunctionName : i2c_master_writeByte
+ * Description  : write wrdata value(one byte) into i2c
+ * Parameters   : uint8 wrdata - write value
+ * Returns      : NONE
+*******************************************************************************/
+void ICACHE_FLASH_ATTR
+i2c_master_writeByte(uint8 wrdata)
+{
+    uint8 dat;
+    sint8 i;
+
+    i2c_master_wait(5);
+
+    i2c_master_setDC(m_nLastSDA, 0);
+    i2c_master_wait(5);
+
+    for (i = 7; i >= 0; i--) {
+        dat = wrdata >> i;
+        i2c_master_setDC(dat, 0);
+        i2c_master_wait(5);
+        i2c_master_setDC(dat, 1);
+        i2c_master_wait(5);
+
+        if (i == 0) {
+            i2c_master_wait(3);   ////
+        }
+
+        i2c_master_setDC(dat, 0);
+        i2c_master_wait(5);
+    }
+}

app/driver/key.c

@@ -0,0 +1,162 @@
+/******************************************************************************
+ * Copyright 2013-2014 Espressif Systems (Wuxi)
+ *
+ * FileName: key.c
+ *
+ * Description: key driver, now can use different gpio and install different function
+ *
+ * Modification history:
+ *     2014/5/1, v1.0 create this file.
+*******************************************************************************/
+#include "ets_sys.h"
+#include "os_type.h"
+#include "osapi.h"
+#include "mem.h"
+#include "gpio.h"
+#include "user_interface.h"
+
+#include "driver/key.h"
+
+LOCAL void key_intr_handler(struct keys_param *keys);
+
+/******************************************************************************
+ * FunctionName : key_init_single
+ * Description  : init single key's gpio and register function
+ * Parameters   : uint8 gpio_id - which gpio to use
+ *                uint32 gpio_name - gpio mux name
+ *                uint32 gpio_func - gpio function
+ *                key_function long_press - long press function, needed to install
+ *                key_function short_press - short press function, needed to install
+ * Returns      : single_key_param - single key parameter, needed by key init
+*******************************************************************************/
+struct single_key_param *ICACHE_FLASH_ATTR
+key_init_single(uint8 gpio_id, uint32 gpio_name, uint8 gpio_func, key_function long_press, key_function short_press)
+{
+    struct single_key_param *single_key = (struct single_key_param *)os_zalloc(sizeof(struct single_key_param));
+
+    single_key->gpio_id = gpio_id;
+    single_key->gpio_name = gpio_name;
+    single_key->gpio_func = gpio_func;
+    single_key->long_press = long_press;
+    single_key->short_press = short_press;
+
+    return single_key;
+}
+
+/******************************************************************************
+ * FunctionName : key_init
+ * Description  : init keys
+ * Parameters   : key_param *keys - keys parameter, which inited by key_init_single
+ * Returns      : none
+*******************************************************************************/
+void ICACHE_FLASH_ATTR
+key_init(struct keys_param *keys)
+{
+    uint8 i;
+
+    ETS_GPIO_INTR_ATTACH(key_intr_handler, keys);
+
+    ETS_GPIO_INTR_DISABLE();
+
+    for (i = 0; i < keys->key_num; i++) {
+        keys->single_key[i]->key_level = 1;
+
+        PIN_FUNC_SELECT(keys->single_key[i]->gpio_name, keys->single_key[i]->gpio_func);
+
+        gpio_output_set(0, 0, 0, GPIO_ID_PIN(keys->single_key[i]->gpio_id));
+
+        gpio_register_set(GPIO_PIN_ADDR(keys->single_key[i]->gpio_id), GPIO_PIN_INT_TYPE_SET(GPIO_PIN_INTR_DISABLE)
+                          | GPIO_PIN_PAD_DRIVER_SET(GPIO_PAD_DRIVER_DISABLE)
+                          | GPIO_PIN_SOURCE_SET(GPIO_AS_PIN_SOURCE));
+
+        //clear gpio14 status
+        GPIO_REG_WRITE(GPIO_STATUS_W1TC_ADDRESS, BIT(keys->single_key[i]->gpio_id));
+
+        //enable interrupt
+        gpio_pin_intr_state_set(GPIO_ID_PIN(keys->single_key[i]->gpio_id), GPIO_PIN_INTR_NEGEDGE);
+    }
+
+    ETS_GPIO_INTR_ENABLE();
+}
+
+/******************************************************************************
+ * FunctionName : key_5s_cb
+ * Description  : long press 5s timer callback
+ * Parameters   : single_key_param *single_key - single key parameter
+ * Returns      : none
+*******************************************************************************/
+LOCAL void ICACHE_FLASH_ATTR
+key_5s_cb(struct single_key_param *single_key)
+{
+    os_timer_disarm(&single_key->key_5s);
+
+    // low, then restart
+    if (0 == GPIO_INPUT_GET(GPIO_ID_PIN(single_key->gpio_id))) {
+        if (single_key->long_press) {
+            single_key->long_press();
+        }
+    }
+}
+
+/******************************************************************************
+ * FunctionName : key_50ms_cb
+ * Description  : 50ms timer callback to check it's a real key push
+ * Parameters   : single_key_param *single_key - single key parameter
+ * Returns      : none
+*******************************************************************************/
+LOCAL void ICACHE_FLASH_ATTR
+key_50ms_cb(struct single_key_param *single_key)
+{
+    os_timer_disarm(&single_key->key_50ms);
+
+    // high, then key is up
+    if (1 == GPIO_INPUT_GET(GPIO_ID_PIN(single_key->gpio_id))) {
+        os_timer_disarm(&single_key->key_5s);
+        single_key->key_level = 1;
+        gpio_pin_intr_state_set(GPIO_ID_PIN(single_key->gpio_id), GPIO_PIN_INTR_NEGEDGE);
+
+        if (single_key->short_press) {
+            single_key->short_press();
+        }
+    } else {
+        gpio_pin_intr_state_set(GPIO_ID_PIN(single_key->gpio_id), GPIO_PIN_INTR_POSEDGE);
+    }
+}
+
+/******************************************************************************
+ * FunctionName : key_intr_handler
+ * Description  : key interrupt handler
+ * Parameters   : key_param *keys - keys parameter, which inited by key_init_single
+ * Returns      : none
+*******************************************************************************/
+LOCAL void
+key_intr_handler(struct keys_param *keys)
+{
+    uint8 i;
+    uint32 gpio_status = GPIO_REG_READ(GPIO_STATUS_ADDRESS);
+
+    for (i = 0; i < keys->key_num; i++) {
+        if (gpio_status & BIT(keys->single_key[i]->gpio_id)) {
+            //disable interrupt
+            gpio_pin_intr_state_set(GPIO_ID_PIN(keys->single_key[i]->gpio_id), GPIO_PIN_INTR_DISABLE);
+
+            //clear interrupt status
+            GPIO_REG_WRITE(GPIO_STATUS_W1TC_ADDRESS, gpio_status & BIT(keys->single_key[i]->gpio_id));
+
+            if (keys->single_key[i]->key_level == 1) {
+                // 5s, restart & enter softap mode
+                os_timer_disarm(&keys->single_key[i]->key_5s);
+                os_timer_setfn(&keys->single_key[i]->key_5s, (os_timer_func_t *)key_5s_cb, keys->single_key[i]);
+                os_timer_arm(&keys->single_key[i]->key_5s, 5000, 0);
+                keys->single_key[i]->key_level = 0;
+                gpio_pin_intr_state_set(GPIO_ID_PIN(keys->single_key[i]->gpio_id), GPIO_PIN_INTR_POSEDGE);
+            } else {
+                // 50ms, check if this is a real key up
+                os_timer_disarm(&keys->single_key[i]->key_50ms);
+                os_timer_setfn(&keys->single_key[i]->key_50ms, (os_timer_func_t *)key_50ms_cb, keys->single_key[i]);
+                os_timer_arm(&keys->single_key[i]->key_50ms, 50, 0);
+            }
+        }
+    }
+}
+

app/driver/onewire.c

@@ -0,0 +1,547 @@
+/*
+Adaptation of Paul Stoffregen's One wire library to the NodeMcu
+
+The latest version of this library may be found at:
+  http://www.pjrc.com/teensy/td_libs_OneWire.html
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Much of the code was inspired by Derek Yerger's code, though I don't
+think much of that remains.  In any event that was..
+    (copyleft) 2006 by Derek Yerger - Free to distribute freely.
+
+The CRC code was excerpted and inspired by the Dallas Semiconductor
+sample code bearing this copyright.
+//---------------------------------------------------------------------------
+// Copyright (C) 2000 Dallas Semiconductor Corporation, All Rights Reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY,  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+// IN NO EVENT SHALL DALLAS SEMICONDUCTOR BE LIABLE FOR ANY CLAIM, DAMAGES
+// OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+// OTHER DEALINGS IN THE SOFTWARE.
+//
+// Except as contained in this notice, the name of Dallas Semiconductor
+// shall not be used except as stated in the Dallas Semiconductor
+// Branding Policy.
+//--------------------------------------------------------------------------
+*/
+
+#include "driver/onewire.h"
+#include "platform.h"
+#include "osapi.h"
+
+#define noInterrupts os_intr_lock
+#define interrupts os_intr_unlock
+#define delayMicroseconds os_delay_us
+
+#if ONEWIRE_SEARCH
+// global search state
+static unsigned char ROM_NO[NUM_OW][8];
+static uint8_t LastDiscrepancy[NUM_OW];
+static uint8_t LastFamilyDiscrepancy[NUM_OW];
+static uint8_t LastDeviceFlag[NUM_OW];
+#endif
+
+void ICACHE_FLASH_ATTR onewire_init(uint8_t pin)
+{
+	// pinMode(pin, INPUT);
+  platform_gpio_mode(pin, PLATFORM_GPIO_INPUT, PLATFORM_GPIO_PULLUP);
+#if ONEWIRE_SEARCH
+	onewire_reset_search(pin);
+#endif
+}
+
+
+// Perform the onewire reset function.  We will wait up to 250uS for
+// the bus to come high, if it doesn't then it is broken or shorted
+// and we return a 0;
+//
+// Returns 1 if a device asserted a presence pulse, 0 otherwise.
+//
+uint8_t ICACHE_FLASH_ATTR onewire_reset(uint8_t pin)
+{
+	uint8_t r;
+	uint8_t retries = 125;
+
+	noInterrupts();
+	DIRECT_MODE_INPUT(pin);
+	interrupts();
+	// wait until the wire is high... just in case
+	do {
+		if (--retries == 0) return 0;
+		delayMicroseconds(2);
+	} while ( !DIRECT_READ(pin));
+
+	noInterrupts();
+	DIRECT_WRITE_LOW(pin);
+	DIRECT_MODE_OUTPUT(pin);	// drive output low
+	interrupts();
+	delayMicroseconds(480);
+	noInterrupts();
+	DIRECT_MODE_INPUT(pin);	// allow it to float
+	delayMicroseconds(70);
+	r = !DIRECT_READ(pin);
+	interrupts();
+	delayMicroseconds(410);
+	return r;
+}
+
+//
+// Write a bit. Port and bit is used to cut lookup time and provide
+// more certain timing.
+//
+static void ICACHE_FLASH_ATTR onewire_write_bit(uint8_t pin, uint8_t v)
+{
+	if (v & 1) {
+		noInterrupts();
+		DIRECT_WRITE_LOW(pin);
+		DIRECT_MODE_OUTPUT(pin);	// drive output low
+		delayMicroseconds(10);
+		DIRECT_WRITE_HIGH(pin);	// drive output high
+		interrupts();
+		delayMicroseconds(55);
+	} else {
+		noInterrupts();
+		DIRECT_WRITE_LOW(pin);
+		DIRECT_MODE_OUTPUT(pin);	// drive output low
+		delayMicroseconds(65);
+		DIRECT_WRITE_HIGH(pin);	// drive output high
+		interrupts();
+		delayMicroseconds(5);
+	}
+}
+
+//
+// Read a bit. Port and bit is used to cut lookup time and provide
+// more certain timing.
+//
+static uint8_t ICACHE_FLASH_ATTR onewire_read_bit(uint8_t pin)
+{
+	uint8_t r;
+
+	noInterrupts();
+	DIRECT_MODE_OUTPUT(pin);
+	DIRECT_WRITE_LOW(pin);
+	delayMicroseconds(3);
+	DIRECT_MODE_INPUT(pin);	// let pin float, pull up will raise
+	delayMicroseconds(10);
+	r = DIRECT_READ(pin);
+	interrupts();
+	delayMicroseconds(53);
+	return r;
+}
+
+//
+// Write a byte. The writing code uses the active drivers to raise the
+// pin high, if you need power after the write (e.g. DS18S20 in
+// parasite power mode) then set 'power' to 1, otherwise the pin will
+// go tri-state at the end of the write to avoid heating in a short or
+// other mishap.
+//
+void ICACHE_FLASH_ATTR onewire_write(uint8_t pin, uint8_t v, uint8_t power /* = 0 */) {
+  uint8_t bitMask;
+
+  for (bitMask = 0x01; bitMask; bitMask <<= 1) {
+	  onewire_write_bit(pin, (bitMask & v)?1:0);
+  }
+  if ( !power) {
+  	noInterrupts();
+  	DIRECT_MODE_INPUT(pin);
+  	DIRECT_WRITE_LOW(pin);
+  	interrupts();
+  }
+}
+
+void ICACHE_FLASH_ATTR onewire_write_bytes(uint8_t pin, const uint8_t *buf, uint16_t count, bool power /* = 0 */) {
+  uint16_t i;
+  for (i = 0 ; i < count ; i++)
+    onewire_write(pin, buf[i], 0);
+  if (!power) {
+    noInterrupts();
+    DIRECT_MODE_INPUT(pin);
+    DIRECT_WRITE_LOW(pin);
+    interrupts();
+  }
+}
+
+//
+// Read a byte
+//
+uint8_t ICACHE_FLASH_ATTR onewire_read(uint8_t pin) {
+  uint8_t bitMask;
+  uint8_t r = 0;
+
+  for (bitMask = 0x01; bitMask; bitMask <<= 1) {
+  	if (onewire_read_bit(pin)) r |= bitMask;
+  }
+  return r;
+}
+
+void ICACHE_FLASH_ATTR onewire_read_bytes(uint8_t pin, uint8_t *buf, uint16_t count) {
+  uint16_t i;
+  for (i = 0 ; i < count ; i++)
+    buf[i] = onewire_read(pin);
+}
+
+//
+// Do a ROM select
+//
+void ICACHE_FLASH_ATTR onewire_select(uint8_t pin, const uint8_t rom[8])
+{
+    uint8_t i;
+
+    onewire_write(pin, 0x55, 0);           // Choose ROM
+
+    for (i = 0; i < 8; i++) onewire_write(pin, rom[i], 0);
+}
+
+//
+// Do a ROM skip
+//
+void ICACHE_FLASH_ATTR onewire_skip(uint8_t pin)
+{
+    onewire_write(pin, 0xCC, 0);           // Skip ROM
+}
+
+void ICACHE_FLASH_ATTR onewire_depower(uint8_t pin)
+{
+	noInterrupts();
+	DIRECT_MODE_INPUT(pin);
+	interrupts();
+}
+
+#if ONEWIRE_SEARCH
+
+//
+// You need to use this function to start a search again from the beginning.
+// You do not need to do it for the first search, though you could.
+//
+void ICACHE_FLASH_ATTR onewire_reset_search(uint8_t pin)
+{
+  // reset the search state
+  LastDiscrepancy[pin] = 0;
+  LastDeviceFlag[pin] = FALSE;
+  LastFamilyDiscrepancy[pin] = 0;
+  int i;
+  for(i = 7; ; i--) {
+    ROM_NO[pin][i] = 0;
+    if ( i == 0) break;
+  }
+}
+
+// Setup the search to find the device type 'family_code' on the next call
+// to search(*newAddr) if it is present.
+//
+void ICACHE_FLASH_ATTR onewire_target_search(uint8_t pin, uint8_t family_code)
+{
+   // set the search state to find SearchFamily type devices
+   ROM_NO[pin][0] = family_code;
+   uint8_t i;
+   for (i = 1; i < 8; i++)
+      ROM_NO[pin][i] = 0;
+   LastDiscrepancy[pin] = 64;
+   LastFamilyDiscrepancy[pin] = 0;
+   LastDeviceFlag[pin] = FALSE;
+}
+
+//
+// Perform a search. If this function returns a '1' then it has
+// enumerated the next device and you may retrieve the ROM from the
+// OneWire::address variable. If there are no devices, no further
+// devices, or something horrible happens in the middle of the
+// enumeration then a 0 is returned.  If a new device is found then
+// its address is copied to newAddr.  Use OneWire::reset_search() to
+// start over.
+//
+// --- Replaced by the one from the Dallas Semiconductor web site ---
+//--------------------------------------------------------------------------
+// Perform the 1-Wire Search Algorithm on the 1-Wire bus using the existing
+// search state.
+// Return TRUE  : device found, ROM number in ROM_NO buffer
+//        FALSE : device not found, end of search
+//
+uint8_t ICACHE_FLASH_ATTR onewire_search(uint8_t pin, uint8_t *newAddr)
+{
+   uint8_t id_bit_number;
+   uint8_t last_zero, rom_byte_number, search_result;
+   uint8_t id_bit, cmp_id_bit;
+
+   unsigned char rom_byte_mask, search_direction;
+
+   // initialize for search
+   id_bit_number = 1;
+   last_zero = 0;
+   rom_byte_number = 0;
+   rom_byte_mask = 1;
+   search_result = 0;
+
+   // if the last call was not the last one
+   if (!LastDeviceFlag[pin])
+   {
+      // 1-Wire reset
+      if (!onewire_reset(pin))
+      {
+         // reset the search
+         LastDiscrepancy[pin] = 0;
+         LastDeviceFlag[pin] = FALSE;
+         LastFamilyDiscrepancy[pin] = 0;
+         return FALSE;
+      }
+
+      // issue the search command
+      onewire_write(pin, 0xF0, 0);
+
+      // loop to do the search
+      do
+      {
+         // read a bit and its complement
+         id_bit = onewire_read_bit(pin);
+         cmp_id_bit = onewire_read_bit(pin);
+
+         // check for no devices on 1-wire
+         if ((id_bit == 1) && (cmp_id_bit == 1))
+            break;
+         else
+         {
+            // all devices coupled have 0 or 1
+            if (id_bit != cmp_id_bit)
+               search_direction = id_bit;  // bit write value for search
+            else
+            {
+               // if this discrepancy if before the Last Discrepancy
+               // on a previous next then pick the same as last time
+               if (id_bit_number < LastDiscrepancy[pin])
+                  search_direction = ((ROM_NO[pin][rom_byte_number] & rom_byte_mask) > 0);
+               else
+                  // if equal to last pick 1, if not then pick 0
+                  search_direction = (id_bit_number == LastDiscrepancy[pin]);
+
+               // if 0 was picked then record its position in LastZero
+               if (search_direction == 0)
+               {
+                  last_zero = id_bit_number;
+
+                  // check for Last discrepancy in family
+                  if (last_zero < 9)
+                     LastFamilyDiscrepancy[pin] = last_zero;
+               }
+            }
+
+            // set or clear the bit in the ROM byte rom_byte_number
+            // with mask rom_byte_mask
+            if (search_direction == 1)
+              ROM_NO[pin][rom_byte_number] |= rom_byte_mask;
+            else
+              ROM_NO[pin][rom_byte_number] &= ~rom_byte_mask;
+
+            // serial number search direction write bit
+            onewire_write_bit(pin, search_direction);
+
+            // increment the byte counter id_bit_number
+            // and shift the mask rom_byte_mask
+            id_bit_number++;
+            rom_byte_mask <<= 1;
+
+            // if the mask is 0 then go to new SerialNum byte rom_byte_number and reset mask
+            if (rom_byte_mask == 0)
+            {
+                rom_byte_number++;
+                rom_byte_mask = 1;
+            }
+         }
+      }
+      while(rom_byte_number < 8);  // loop until through all ROM bytes 0-7
+
+      // if the search was successful then
+      if (!(id_bit_number < 65))
+      {
+         // search successful so set LastDiscrepancy,LastDeviceFlag,search_result
+         LastDiscrepancy[pin] = last_zero;
+
+         // check for last device
+         if (LastDiscrepancy[pin] == 0)
+            LastDeviceFlag[pin] = TRUE;
+
+         search_result = TRUE;
+      }
+   }
+
+   // if no device found then reset counters so next 'search' will be like a first
+   if (!search_result || !ROM_NO[pin][0])
+   {
+      LastDiscrepancy[pin] = 0;
+      LastDeviceFlag[pin] = FALSE;
+      LastFamilyDiscrepancy[pin] = 0;
+      search_result = FALSE;
+   }
+   int i;
+   for (i = 0; i < 8; i++) newAddr[i] = ROM_NO[pin][i];
+   return search_result;
+  }
+
+#endif
+
+
+#if ONEWIRE_CRC
+// The 1-Wire CRC scheme is described in Maxim Application Note 27:
+// "Understanding and Using Cyclic Redundancy Checks with Maxim iButton Products"
+//
+
+#if ONEWIRE_CRC8_TABLE
+// This table comes from Dallas sample code where it is freely reusable,
+// though Copyright (C) 2000 Dallas Semiconductor Corporation
+static const uint8_t dscrc_table[] = {
+      0, 94,188,226, 97, 63,221,131,194,156,126, 32,163,253, 31, 65,
+    157,195, 33,127,252,162, 64, 30, 95,  1,227,189, 62, 96,130,220,
+     35,125,159,193, 66, 28,254,160,225,191, 93,  3,128,222, 60, 98,
+    190,224,  2, 92,223,129, 99, 61,124, 34,192,158, 29, 67,161,255,
+     70, 24,250,164, 39,121,155,197,132,218, 56,102,229,187, 89,  7,
+    219,133,103, 57,186,228,  6, 88, 25, 71,165,251,120, 38,196,154,
+    101, 59,217,135,  4, 90,184,230,167,249, 27, 69,198,152,122, 36,
+    248,166, 68, 26,153,199, 37,123, 58,100,134,216, 91,  5,231,185,
+    140,210, 48,110,237,179, 81, 15, 78, 16,242,172, 47,113,147,205,
+     17, 79,173,243,112, 46,204,146,211,141,111, 49,178,236, 14, 80,
+    175,241, 19, 77,206,144,114, 44,109, 51,209,143, 12, 82,176,238,
+     50,108,142,208, 83, 13,239,177,240,174, 76, 18,145,207, 45,115,
+    202,148,118, 40,171,245, 23, 73,  8, 86,180,234,105, 55,213,139,
+     87,  9,235,181, 54,104,138,212,149,203, 41,119,244,170, 72, 22,
+    233,183, 85, 11,136,214, 52,106, 43,117,151,201, 74, 20,246,168,
+    116, 42,200,150, 21, 75,169,247,182,232, 10, 84,215,137,107, 53};
+
+#ifndef pgm_read_byte
+#define pgm_read_byte(addr) (*(const uint8_t *)(addr))
+#endif
+
+//
+// Compute a Dallas Semiconductor 8 bit CRC. These show up in the ROM
+// and the registers.  (note: this might better be done without to
+// table, it would probably be smaller and certainly fast enough
+// compared to all those delayMicrosecond() calls.  But I got
+// confused, so I use this table from the examples.)
+//
+uint8_t ICACHE_FLASH_ATTR onewire_crc8(const uint8_t *addr, uint8_t len)
+{
+	uint8_t crc = 0;
+
+	while (len--) {
+		crc = pgm_read_byte(dscrc_table + (crc ^ *addr++));
+	}
+	return crc;
+}
+#else
+//
+// Compute a Dallas Semiconductor 8 bit CRC directly.
+// this is much slower, but much smaller, than the lookup table.
+//
+uint8_t ICACHE_FLASH_ATTR onewire_crc8(const uint8_t *addr, uint8_t len)
+{
+	uint8_t crc = 0;
+	
+	while (len--) {
+		uint8_t inbyte = *addr++;
+		for (uint8_t i = 8; i; i--) {
+			uint8_t mix = (crc ^ inbyte) & 0x01;
+			crc >>= 1;
+			if (mix) crc ^= 0x8C;
+			inbyte >>= 1;
+		}
+	}
+	return crc;
+}
+#endif
+
+#if ONEWIRE_CRC16
+// Compute the 1-Wire CRC16 and compare it against the received CRC.
+// Example usage (reading a DS2408):
+    //    // Put everything in a buffer so we can compute the CRC easily.
+//    uint8_t buf[13];
+//    buf[0] = 0xF0;    // Read PIO Registers
+//    buf[1] = 0x88;    // LSB address
+//    buf[2] = 0x00;    // MSB address
+//    WriteBytes(net, buf, 3);    // Write 3 cmd bytes
+//    ReadBytes(net, buf+3, 10);  // Read 6 data bytes, 2 0xFF, 2 CRC16
+//    if (!CheckCRC16(buf, 11, &buf[11])) {
+//        // Handle error.
+//    }     
+//          
+// @param input - Array of bytes to checksum.
+// @param len - How many bytes to use.
+// @param inverted_crc - The two CRC16 bytes in the received data.
+//                       This should just point into the received data,
+//                       *not* at a 16-bit integer.
+// @param crc - The crc starting value (optional)
+// @return True, iff the CRC matches.
+bool ICACHE_FLASH_ATTR onewire_check_crc16(const uint8_t* input, uint16_t len, const uint8_t* inverted_crc, uint16_t crc)
+{
+    crc = ~onewire_crc16(input, len, crc);
+    return (crc & 0xFF) == inverted_crc[0] && (crc >> 8) == inverted_crc[1];
+}
+
+// Compute a Dallas Semiconductor 16 bit CRC.  This is required to check
+// the integrity of data received from many 1-Wire devices.  Note that the
+// CRC computed here is *not* what you'll get from the 1-Wire network,
+// for two reasons:
+//   1) The CRC is transmitted bitwise inverted.
+//   2) Depending on the endian-ness of your processor, the binary
+//      representation of the two-byte return value may have a different
+//      byte order than the two bytes you get from 1-Wire.
+// @param input - Array of bytes to checksum.
+// @param len - How many bytes to use.
+// @param crc - The crc starting value (optional)
+// @return The CRC16, as defined by Dallas Semiconductor.
+uint16_t ICACHE_FLASH_ATTR onewire_crc16(const uint8_t* input, uint16_t len, uint16_t crc)
+{
+    static const uint8_t oddparity[16] =
+        { 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0 };
+
+    uint16_t i;
+    for (i = 0 ; i < len ; i++) {
+      // Even though we're just copying a byte from the input,
+      // we'll be doing 16-bit computation with it.
+      uint16_t cdata = input[i];
+      cdata = (cdata ^ crc) & 0xff;
+      crc >>= 8;
+
+      if (oddparity[cdata & 0x0F] ^ oddparity[cdata >> 4])
+          crc ^= 0xC001;
+
+      cdata <<= 6;
+      crc ^= cdata;
+      cdata <<= 1;
+      crc ^= cdata;
+    }
+    return crc;
+}
+#endif
+
+#endif

app/driver/pwm.c

@@ -0,0 +1,446 @@
+/******************************************************************************
+ * Copyright 2013-2014 Espressif Systems (Wuxi)
+ *
+ * FileName: pwm.c
+ *
+ * Description: pwm driver
+ *
+ * Modification history:
+ *     2014/5/1, v1.0 create this file.
+*******************************************************************************/
+#include "platform.h"
+
+#include "ets_sys.h"
+#include "os_type.h"
+#include "osapi.h"
+#include "gpio.h"
+
+#include "user_interface.h"
+#include "driver/pwm.h"
+
+// #define PWM_DBG os_printf
+#define PWM_DBG
+
+LOCAL struct pwm_single_param pwm_single_toggle[2][PWM_CHANNEL + 1];
+LOCAL struct pwm_single_param *pwm_single;
+
+LOCAL struct pwm_param pwm;
+
+// LOCAL uint8 pwm_out_io_num[PWM_CHANNEL] = {PWM_0_OUT_IO_NUM, PWM_1_OUT_IO_NUM, PWM_2_OUT_IO_NUM};
+LOCAL int8 pwm_out_io_num[PWM_CHANNEL] = {-1, -1, -1, -1, -1, -1};
+
+LOCAL uint8 pwm_channel_toggle[2];
+LOCAL uint8 *pwm_channel;
+
+LOCAL uint8 pwm_toggle = 1;
+LOCAL uint8 pwm_timer_down = 1;
+
+LOCAL uint8 pwm_current_channel = 0;
+
+LOCAL uint16 pwm_gpio = 0;
+
+LOCAL uint8 pwm_channel_num = 0;
+
+//XXX: 0xffffffff/(80000000/16)=35A
+#define US_TO_RTC_TIMER_TICKS(t)          \
+    ((t) ?                                   \
+     (((t) > 0x35A) ?                   \
+      (((t)>>2) * ((APB_CLK_FREQ>>4)/250000) + ((t)&0x3) * ((APB_CLK_FREQ>>4)/1000000))  :    \
+      (((t) *(APB_CLK_FREQ>>4)) / 1000000)) :    \
+     0)
+
+//FRC1
+#define FRC1_ENABLE_TIMER  BIT7
+
+typedef enum {
+    DIVDED_BY_1 = 0,
+    DIVDED_BY_16 = 4,
+    DIVDED_BY_256 = 8,
+} TIMER_PREDIVED_MODE;
+
+typedef enum {
+    TM_LEVEL_INT = 1,
+    TM_EDGE_INT   = 0,
+} TIMER_INT_MODE;
+
+LOCAL void ICACHE_FLASH_ATTR
+pwm_insert_sort(struct pwm_single_param pwm[], uint8 n)
+{
+    uint8 i;
+
+    for (i = 1; i < n; i++) {
+        if (pwm[i].h_time < pwm[i - 1].h_time) {
+            int8 j = i - 1;
+            struct pwm_single_param tmp;
+
+            os_memcpy(&tmp, &pwm[i], sizeof(struct pwm_single_param));
+            os_memcpy(&pwm[i], &pwm[i - 1], sizeof(struct pwm_single_param));
+
+            while (tmp.h_time < pwm[j].h_time) {
+                os_memcpy(&pwm[j + 1], &pwm[j], sizeof(struct pwm_single_param));
+                j--;
+                if (j < 0) {
+                	break;
+                }
+            }
+
+            os_memcpy(&pwm[j + 1], &tmp, sizeof(struct pwm_single_param));
+        }
+    }
+}
+
+LOCAL volatile uint8 critical = 0;
+
+#define LOCK_PWM(c)  do {                       \
+    while( (c)==1 );                            \
+    (c) = 1;                                    \
+} while (0)
+
+#define UNLOCK_PWM(c) do {                      \
+    (c) = 0;                                    \
+} while (0)
+
+void ICACHE_FLASH_ATTR
+pwm_start(void)
+{
+    uint8 i, j;
+    PWM_DBG("--Function pwm_start() is called\n");
+    PWM_DBG("pwm_gpio:%x,pwm_channel_num:%d\n",pwm_gpio,pwm_channel_num);
+    PWM_DBG("pwm_out_io_num[0]:%d,[1]:%d,[2]:%d\n",pwm_out_io_num[0],pwm_out_io_num[1],pwm_out_io_num[2]);
+    PWM_DBG("pwm.period:%d,pwm.duty[0]:%d,[1]:%d,[2]:%d\n",pwm.period,pwm.duty[0],pwm.duty[1],pwm.duty[2]);
+
+    LOCK_PWM(critical);   // enter critical
+
+    struct pwm_single_param *local_single = pwm_single_toggle[pwm_toggle ^ 0x01];
+    uint8 *local_channel = &pwm_channel_toggle[pwm_toggle ^ 0x01];
+
+    // step 1: init PWM_CHANNEL+1 channels param
+    for (i = 0; i < pwm_channel_num; i++) {
+        uint32 us = pwm.period * pwm.duty[i] / PWM_DEPTH;
+        local_single[i].h_time = US_TO_RTC_TIMER_TICKS(us);
+        PWM_DBG("i:%d us:%d ht:%d\n",i,us,local_single[i].h_time);
+        local_single[i].gpio_set = 0;
+        local_single[i].gpio_clear = 1 << pin_num[pwm_out_io_num[i]];
+    }
+
+    local_single[pwm_channel_num].h_time = US_TO_RTC_TIMER_TICKS(pwm.period);
+    local_single[pwm_channel_num].gpio_set = pwm_gpio;
+    local_single[pwm_channel_num].gpio_clear = 0;
+    PWM_DBG("i:%d period:%d ht:%d\n",pwm_channel_num,pwm.period,local_single[pwm_channel_num].h_time);
+    // step 2: sort, small to big
+    pwm_insert_sort(local_single, pwm_channel_num + 1);
+
+    *local_channel = pwm_channel_num + 1;
+    PWM_DBG("1channel:%d,single[0]:%d,[1]:%d,[2]:%d,[3]:%d\n",*local_channel,local_single[0].h_time,local_single[1].h_time,local_single[2].h_time,local_single[3].h_time);
+    // step 3: combine same duty channels
+    for (i = pwm_channel_num; i > 0; i--) {
+        if (local_single[i].h_time == local_single[i - 1].h_time) {
+            local_single[i - 1].gpio_set |= local_single[i].gpio_set;
+            local_single[i - 1].gpio_clear |= local_single[i].gpio_clear;
+
+            for (j = i + 1; j < *local_channel; j++) {
+                os_memcpy(&local_single[j - 1], &local_single[j], sizeof(struct pwm_single_param));
+            }
+
+            (*local_channel)--;
+        }
+    }
+    PWM_DBG("2channel:%d,single[0]:%d,[1]:%d,[2]:%d,[3]:%d\n",*local_channel,local_single[0].h_time,local_single[1].h_time,local_single[2].h_time,local_single[3].h_time);
+    // step 4: cacl delt time
+    for (i = *local_channel - 1; i > 0; i--) {
+        local_single[i].h_time -= local_single[i - 1].h_time;
+    }
+
+    // step 5: last channel needs to clean
+    local_single[*local_channel-1].gpio_clear = 0;
+
+    // step 6: if first channel duty is 0, remove it
+    if (local_single[0].h_time == 0) {
+        local_single[*local_channel - 1].gpio_set &= ~local_single[0].gpio_clear;
+        local_single[*local_channel - 1].gpio_clear |= local_single[0].gpio_clear;
+
+        for (i = 1; i < *local_channel; i++) {
+            os_memcpy(&local_single[i - 1], &local_single[i], sizeof(struct pwm_single_param));
+        }
+
+        (*local_channel)--;
+    }
+
+    // if timer is down, need to set gpio and start timer
+    if (pwm_timer_down == 1) {
+        pwm_channel = local_channel;
+        pwm_single = local_single;
+        // start
+        gpio_output_set(local_single[0].gpio_set, local_single[0].gpio_clear, pwm_gpio, 0);
+
+        // yeah, if all channels' duty is 0 or 255, don't need to start timer, otherwise start...
+        if (*local_channel != 1) {
+            pwm_timer_down = 0;
+            RTC_REG_WRITE(FRC1_LOAD_ADDRESS, local_single[0].h_time);
+        }
+    }
+
+    if (pwm_toggle == 1) {
+        pwm_toggle = 0;
+    } else {
+        pwm_toggle = 1;
+    }
+
+    UNLOCK_PWM(critical);   // leave critical
+    PWM_DBG("3channel:%d,single[0]:%d,[1]:%d,[2]:%d,[3]:%d\n",*local_channel,local_single[0].h_time,local_single[1].h_time,local_single[2].h_time,local_single[3].h_time);
+}
+
+/******************************************************************************
+ * FunctionName : pwm_set_duty
+ * Description  : set each channel's duty params
+ * Parameters   : uint8 duty    : 0 ~ PWM_DEPTH
+ *                uint8 channel : channel index
+ * Returns      : NONE
+*******************************************************************************/
+void ICACHE_FLASH_ATTR
+pwm_set_duty(uint16 duty, uint8 channel)
+{
+    uint8 i;
+    for(i=0;i<pwm_channel_num;i++){
+        if(pwm_out_io_num[i] == channel){
+            channel = i;
+            break;
+        }
+    }
+    if(i==pwm_channel_num)      // non found
+        return;
+
+    LOCK_PWM(critical);   // enter critical
+    if (duty < 1) {
+        pwm.duty[channel] = 0;
+    } else if (duty >= PWM_DEPTH) {
+    	pwm.duty[channel] = PWM_DEPTH;
+    } else {
+    	pwm.duty[channel] = duty;
+    }
+    UNLOCK_PWM(critical);   // leave critical
+}
+
+/******************************************************************************
+ * FunctionName : pwm_set_freq
+ * Description  : set pwm frequency
+ * Parameters   : uint16 freq : 100hz typically
+ * Returns      : NONE
+*******************************************************************************/
+void ICACHE_FLASH_ATTR
+pwm_set_freq(uint16 freq, uint8 channel)
+{
+    LOCK_PWM(critical);   // enter critical
+    if (freq > PWM_FREQ_MAX) {
+        pwm.freq = PWM_FREQ_MAX;
+    } else if (freq < 1) {
+        pwm.freq = 1;
+    } else {
+        pwm.freq = freq;
+    }
+
+    pwm.period = PWM_1S / pwm.freq;
+    UNLOCK_PWM(critical);   // leave critical
+}
+
+/******************************************************************************
+ * FunctionName : pwm_set_freq_duty
+ * Description  : set pwm frequency and each channel's duty
+ * Parameters   : uint16 freq : 100hz typically
+ *                uint16 *duty : each channel's duty
+ * Returns      : NONE
+*******************************************************************************/
+LOCAL void ICACHE_FLASH_ATTR
+pwm_set_freq_duty(uint16 freq, uint16 *duty)
+{
+    uint8 i;
+
+    pwm_set_freq(freq, 0);
+
+    for (i = 0; i < PWM_CHANNEL; i++) {
+        // pwm_set_duty(duty[i], i);
+        if(pwm_out_io_num[i] != -1)
+            pwm_set_duty(duty[i], pwm_out_io_num[i]);
+    }
+}
+
+/******************************************************************************
+ * FunctionName : pwm_get_duty
+ * Description  : get duty of each channel
+ * Parameters   : uint8 channel : channel index
+ * Returns      : NONE
+*******************************************************************************/
+uint16 ICACHE_FLASH_ATTR
+pwm_get_duty(uint8 channel)
+{
+    uint8 i;
+    for(i=0;i<pwm_channel_num;i++){
+        if(pwm_out_io_num[i] == channel){
+            channel = i;
+            break;
+        }
+    }
+    if(i==pwm_channel_num)      // non found
+        return 0;
+
+    return pwm.duty[channel];
+}
+
+/******************************************************************************
+ * FunctionName : pwm_get_freq
+ * Description  : get pwm frequency
+ * Parameters   : NONE
+ * Returns      : uint16 : pwm frequency
+*******************************************************************************/
+uint16 ICACHE_FLASH_ATTR
+pwm_get_freq(uint8 channel)
+{
+    return pwm.freq;
+}
+
+/******************************************************************************
+ * FunctionName : pwm_period_timer
+ * Description  : pwm period timer function, output high level,
+ *                start each channel's high level timer
+ * Parameters   : NONE
+ * Returns      : NONE
+*******************************************************************************/
+LOCAL void
+pwm_tim1_intr_handler(void)
+{
+    uint8 local_toggle = pwm_toggle;                        // pwm_toggle may change outside
+    RTC_CLR_REG_MASK(FRC1_INT_ADDRESS, FRC1_INT_CLR_MASK);
+
+    if (pwm_current_channel >= (*pwm_channel - 1)) {        // *pwm_channel may change outside
+        pwm_single = pwm_single_toggle[local_toggle];
+        pwm_channel = &pwm_channel_toggle[local_toggle];
+
+        gpio_output_set(pwm_single[*pwm_channel - 1].gpio_set,
+                        pwm_single[*pwm_channel - 1].gpio_clear,
+                        pwm_gpio,
+                        0);
+
+        pwm_current_channel = 0;
+
+        if (*pwm_channel != 1) {
+            RTC_REG_WRITE(FRC1_LOAD_ADDRESS, pwm_single[pwm_current_channel].h_time);
+        } else {
+            pwm_timer_down = 1;
+        }
+    } else {
+        gpio_output_set(pwm_single[pwm_current_channel].gpio_set,
+                        pwm_single[pwm_current_channel].gpio_clear,
+                        pwm_gpio, 0);
+
+        pwm_current_channel++;
+        RTC_REG_WRITE(FRC1_LOAD_ADDRESS, pwm_single[pwm_current_channel].h_time);
+    }
+}
+
+/******************************************************************************
+ * FunctionName : pwm_init
+ * Description  : pwm gpio, params and timer initialization
+ * Parameters   : uint16 freq : pwm freq param
+ *                uint16 *duty : each channel's duty
+ * Returns      : NONE
+*******************************************************************************/
+void ICACHE_FLASH_ATTR
+pwm_init(uint16 freq, uint16 *duty)
+{
+    uint8 i;
+
+    ETS_FRC_TIMER1_INTR_ATTACH(pwm_tim1_intr_handler, NULL);
+    TM1_EDGE_INT_ENABLE();
+    ETS_FRC1_INTR_ENABLE();
+
+    RTC_CLR_REG_MASK(FRC1_INT_ADDRESS, FRC1_INT_CLR_MASK);
+    RTC_REG_WRITE(FRC1_CTRL_ADDRESS,  //FRC2_AUTO_RELOAD|
+                  DIVDED_BY_16
+                  | FRC1_ENABLE_TIMER
+                  | TM_EDGE_INT);
+    RTC_REG_WRITE(FRC1_LOAD_ADDRESS, 0);
+
+    // PIN_FUNC_SELECT(PWM_0_OUT_IO_MUX, PWM_0_OUT_IO_FUNC);
+    // PIN_FUNC_SELECT(PWM_1_OUT_IO_MUX, PWM_1_OUT_IO_FUNC);
+    // PIN_FUNC_SELECT(PWM_2_OUT_IO_MUX, PWM_2_OUT_IO_FUNC);
+    // GPIO_OUTPUT_SET(GPIO_ID_PIN(PWM_0_OUT_IO_NUM), 0);
+    // GPIO_OUTPUT_SET(GPIO_ID_PIN(PWM_1_OUT_IO_NUM), 0);
+    // GPIO_OUTPUT_SET(GPIO_ID_PIN(PWM_2_OUT_IO_NUM), 0);
+    
+    for (i = 0; i < PWM_CHANNEL; i++) {
+        // pwm_gpio |= (1 << pwm_out_io_num[i]);
+        pwm_gpio = 0;
+        pwm.duty[0] = 0;
+    }
+
+    pwm_set_freq(500, 0);
+    // pwm_set_freq_duty(freq, duty);
+
+    pwm_start();
+}
+
+bool ICACHE_FLASH_ATTR
+pwm_add(uint8 channel){
+    PWM_DBG("--Function pwm_add() is called. channel:%d\n", channel);
+    PWM_DBG("pwm_gpio:%x,pwm_channel_num:%d\n",pwm_gpio,pwm_channel_num);
+    PWM_DBG("pwm_out_io_num[0]:%d,[1]:%d,[2]:%d\n",pwm_out_io_num[0],pwm_out_io_num[1],pwm_out_io_num[2]);
+    PWM_DBG("pwm.duty[0]:%d,[1]:%d,[2]:%d\n",pwm.duty[0],pwm.duty[1],pwm.duty[2]);
+    uint8 i;
+    for(i=0;i<PWM_CHANNEL;i++){
+        if(pwm_out_io_num[i]==channel)  // already exist
+            return true;
+        if(pwm_out_io_num[i] == -1){ // empty exist
+            LOCK_PWM(critical);   // enter critical
+            pwm_out_io_num[i] = channel;
+            pwm.duty[i] = 0;
+            pwm_gpio |= (1 << pin_num[channel]);
+            PIN_FUNC_SELECT(pin_mux[channel], pin_func[channel]);
+            GPIO_REG_WRITE(GPIO_PIN_ADDR(GPIO_ID_PIN(pin_num[channel])), GPIO_REG_READ(GPIO_PIN_ADDR(GPIO_ID_PIN(pin_num[channel]))) & (~ GPIO_PIN_PAD_DRIVER_SET(GPIO_PAD_DRIVER_ENABLE))); //disable open drain;
+            pwm_channel_num++;
+            UNLOCK_PWM(critical);   // leave critical
+            return true;
+        }
+    }
+    return false;
+}
+
+bool ICACHE_FLASH_ATTR
+pwm_delete(uint8 channel){
+    PWM_DBG("--Function pwm_delete() is called. channel:%d\n", channel);
+    PWM_DBG("pwm_gpio:%x,pwm_channel_num:%d\n",pwm_gpio,pwm_channel_num);
+    PWM_DBG("pwm_out_io_num[0]:%d,[1]:%d,[2]:%d\n",pwm_out_io_num[0],pwm_out_io_num[1],pwm_out_io_num[2]);
+    PWM_DBG("pwm.duty[0]:%d,[1]:%d,[2]:%d\n",pwm.duty[0],pwm.duty[1],pwm.duty[2]);
+    uint8 i,j;
+    for(i=0;i<pwm_channel_num;i++){
+        if(pwm_out_io_num[i]==channel){  // exist
+            LOCK_PWM(critical);   // enter critical
+            pwm_out_io_num[i] = -1;
+            pwm_gpio &= ~(1 << pin_num[channel]);   //clear the bit
+            for(j=i;j<pwm_channel_num-1;j++){
+                pwm_out_io_num[j] = pwm_out_io_num[j+1];
+                pwm.duty[j] = pwm.duty[j+1];
+            }
+            pwm_out_io_num[pwm_channel_num-1] = -1;
+            pwm.duty[pwm_channel_num-1] = 0;
+            pwm_channel_num--;
+            UNLOCK_PWM(critical);   // leave critical
+            return true;
+        }
+    }
+    // non found
+    return true;
+}
+
+bool ICACHE_FLASH_ATTR
+pwm_exist(uint8 channel){
+    PWM_DBG("--Function pwm_exist() is called. channel:%d\n", channel);
+    PWM_DBG("pwm_gpio:%x,pwm_channel_num:%d\n",pwm_gpio,pwm_channel_num);
+    PWM_DBG("pwm_out_io_num[0]:%d,[1]:%d,[2]:%d\n",pwm_out_io_num[0],pwm_out_io_num[1],pwm_out_io_num[2]);
+    PWM_DBG("pwm.duty[0]:%d,[1]:%d,[2]:%d\n",pwm.duty[0],pwm.duty[1],pwm.duty[2]);
+    uint8 i;
+    for(i=0;i<PWM_CHANNEL;i++){
+        if(pwm_out_io_num[i]==channel)  // exist
+            return true;
+    }
+    return false;
+}

app/driver/readline.c

@@ -0,0 +1,112 @@
+#include "ets_sys.h"
+#include "os_type.h"
+#include "osapi.h"
+#include "driver/uart.h"
+#include "c_types.h"
+
+LOCAL os_timer_t readline_timer;
+
+// UartDev is defined and initialized in rom code.
+extern UartDevice UartDev;
+
+#define uart_putc uart0_putc
+
+char ICACHE_FLASH_ATTR uart_getc(void){
+    char c = 0;
+    RcvMsgBuff *pRxBuff = &(UartDev.rcv_buff);
+    if(pRxBuff->pWritePos == pRxBuff->pReadPos){   // empty
+        return 0;
+    }
+    // ETS_UART_INTR_DISABLE();
+    ETS_INTR_LOCK();
+    c = (char)*(pRxBuff->pReadPos);
+    if (pRxBuff->pReadPos == (pRxBuff->pRcvMsgBuff + RX_BUFF_SIZE)) {
+        pRxBuff->pReadPos = pRxBuff->pRcvMsgBuff ; 
+    } else {
+        pRxBuff->pReadPos++;
+    }
+    // ETS_UART_INTR_ENABLE();
+    ETS_INTR_UNLOCK();
+    return c;
+}
+
+#if 0
+int ICACHE_FLASH_ATTR readline4lua(const char *prompt, char *buffer, int length){
+    char ch;
+    int line_position;
+
+start:
+    /* show prompt */
+    uart0_sendStr(prompt);
+
+    line_position = 0;
+    os_memset(buffer, 0, length);
+    while (1)
+    {
+        while ((ch = uart_getc()) != 0)
+        {
+            /* handle CR key */
+            if (ch == '\r')
+            {
+                char next;
+                if ((next = uart_getc()) != 0)
+                    ch = next;
+            }
+            /* backspace key */
+            else if (ch == 0x7f || ch == 0x08)
+            {
+                if (line_position > 0)
+                {
+                    uart_putc(0x08);
+                    uart_putc(' ');
+                    uart_putc(0x08);
+                    line_position--;
+                }
+                buffer[line_position] = 0;
+                continue;
+            }
+            /* EOF(ctrl+d) */
+            else if (ch == 0x04)
+            {
+                if (line_position == 0)
+                    /* No input which makes lua interpreter close */
+                    return 0;
+                else
+                    continue;
+            }
+            
+            /* end of line */
+            if (ch == '\r' || ch == '\n')
+            {
+                buffer[line_position] = 0;
+                uart_putc('\n');
+                if (line_position == 0)
+                {
+                    /* Get a empty line, then go to get a new line */
+                    goto start;
+                }
+                else
+                {
+                    return line_position;
+                }
+            }
+
+            /* other control character or not an acsii character */
+            if (ch < 0x20 || ch >= 0x80)
+            {
+                continue;
+            }
+
+            /* echo */
+            uart_putc(ch);
+            buffer[line_position] = ch;
+            ch = 0;
+            line_position++;
+
+            /* it's a large line, discard it */
+            if (line_position >= length)
+                line_position = 0;
+       }
+    }
+}
+#endif

app/driver/spi.c

@@ -0,0 +1,494 @@
+#include "driver/spi.h"
+
+
+/******************************************************************************
+ * FunctionName : spi_lcd_mode_init
+ * Description  : SPI master initial function for driving LCD TM035PDZV36
+ * Parameters   : uint8 spi_no - SPI module number, Only "SPI" and "HSPI" are valid
+*******************************************************************************/
+void spi_lcd_mode_init(uint8 spi_no)
+{
+	uint32 regvalue; 
+	if(spi_no>1) 		return; //handle invalid input number
+	//bit9 of PERIPHS_IO_MUX should be cleared when HSPI clock doesn't equal CPU clock
+	//bit8 of PERIPHS_IO_MUX should be cleared when SPI clock doesn't equal CPU clock
+	if(spi_no==SPI){
+		WRITE_PERI_REG(PERIPHS_IO_MUX, 0x005); //clear bit9,and bit8
+		PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_CLK_U, 1);//configure io to spi mode
+		PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_CMD_U, 1);//configure io to spi mode	
+		PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_DATA0_U, 1);//configure io to spi mode	
+		PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_DATA1_U, 1);//configure io to spi mode	
+	}else if(spi_no==HSPI){
+		WRITE_PERI_REG(PERIPHS_IO_MUX, 0x105); //clear bit9
+		PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDI_U, 2);//configure io to spi mode
+		PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTCK_U, 2);//configure io to spi mode	
+		PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTMS_U, 2);//configure io to spi mode	
+		PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDO_U, 2);//configure io to spi mode	
+	}			
+
+	SET_PERI_REG_MASK(SPI_USER(spi_no), SPI_CS_SETUP|SPI_CS_HOLD|SPI_USR_COMMAND);
+	CLEAR_PERI_REG_MASK(SPI_USER(spi_no), SPI_FLASH_MODE);
+	// SPI clock=CPU clock/8
+	WRITE_PERI_REG(SPI_CLOCK(spi_no), 
+					((1&SPI_CLKDIV_PRE)<<SPI_CLKDIV_PRE_S)|
+					((3&SPI_CLKCNT_N)<<SPI_CLKCNT_N_S)|
+					((1&SPI_CLKCNT_H)<<SPI_CLKCNT_H_S)|
+					((3&SPI_CLKCNT_L)<<SPI_CLKCNT_L_S)); //clear bit 31,set SPI clock div
+	
+}
+/******************************************************************************
+ * FunctionName : spi_lcd_9bit_write
+ * Description  : SPI 9bits transmission function for driving LCD TM035PDZV36
+ * Parameters   : 	uint8 spi_no - SPI module number, Only "SPI" and "HSPI" are valid
+ *				uint8 high_bit - first high bit of the data, 0 is for "0",the other value 1-255 is for "1"
+ *				uint8 low_8bit- the rest 8bits of the data.
+*******************************************************************************/
+void spi_lcd_9bit_write(uint8 spi_no,uint8 high_bit,uint8 low_8bit)
+{
+	uint32 regvalue;
+	uint8 bytetemp;
+	if(spi_no>1) 		return; //handle invalid input number
+	
+	if(high_bit)		bytetemp=(low_8bit>>1)|0x80;
+	else				bytetemp=(low_8bit>>1)&0x7f;
+	
+	regvalue= ((8&SPI_USR_COMMAND_BITLEN)<<SPI_USR_COMMAND_BITLEN_S)|((uint32)bytetemp);		//configure transmission variable,9bit transmission length and first 8 command bit 
+	if(low_8bit&0x01) 	regvalue|=BIT15;        //write the 9th bit
+	while(READ_PERI_REG(SPI_CMD(spi_no))&SPI_USR);		//waiting for spi module available
+	WRITE_PERI_REG(SPI_USER2(spi_no), regvalue);				//write  command and command length into spi reg
+	SET_PERI_REG_MASK(SPI_CMD(spi_no), SPI_USR);		//transmission start
+}
+
+/******************************************************************************
+ * FunctionName : spi_master_init
+ * Description  : SPI master initial function for common byte units transmission
+ * Parameters   : uint8 spi_no - SPI module number, Only "SPI" and "HSPI" are valid
+*******************************************************************************/
+void spi_master_init(uint8 spi_no)
+{
+	uint32 regvalue; 
+
+	if(spi_no>1) 		return; //handle invalid input number
+	
+
+	if(spi_no==SPI){
+		WRITE_PERI_REG(PERIPHS_IO_MUX, 0x005); 
+		PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_CLK_U, 1);//configure io to spi mode
+		PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_CMD_U, 1);//configure io to spi mode	
+		PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_DATA0_U, 1);//configure io to spi mode	
+		PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_DATA1_U, 1);//configure io to spi mode	
+	}
+	else if(spi_no==HSPI){
+		WRITE_PERI_REG(PERIPHS_IO_MUX, 0x105); 
+		PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDI_U, 2);//configure io to spi mode
+		PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTCK_U, 2);//configure io to spi mode	
+		PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTMS_U, 2);//configure io to spi mode	
+		PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDO_U, 2);//configure io to spi mode	
+	}
+
+	SET_PERI_REG_MASK(SPI_USER(spi_no), SPI_CS_SETUP|SPI_CS_HOLD|SPI_USR_COMMAND|SPI_USR_MOSI);
+	CLEAR_PERI_REG_MASK(SPI_USER(spi_no), SPI_FLASH_MODE);
+
+	//clear Daul or Quad lines transmission mode
+	CLEAR_PERI_REG_MASK(SPI_CTRL(spi_no), SPI_QIO_MODE|SPI_DIO_MODE|SPI_DOUT_MODE|SPI_QOUT_MODE);
+
+	WRITE_PERI_REG(SPI_CLOCK(spi_no), 
+					((3&SPI_CLKCNT_N)<<SPI_CLKCNT_N_S)|
+					((1&SPI_CLKCNT_H)<<SPI_CLKCNT_H_S)|
+					((3&SPI_CLKCNT_L)<<SPI_CLKCNT_L_S)); //clear bit 31,set SPI clock div
+
+	//set 8bit output buffer length, the buffer is the low 8bit of register"SPI_FLASH_C0"
+	WRITE_PERI_REG(SPI_USER1(spi_no), 
+					((7&SPI_USR_MOSI_BITLEN)<<SPI_USR_MOSI_BITLEN_S)|
+					((7&SPI_USR_MISO_BITLEN)<<SPI_USR_MISO_BITLEN_S));
+}
+
+/******************************************************************************
+ * FunctionName : spi_mast_byte_write
+ * Description  : SPI master 1 byte transmission function
+ * Parameters   : 	uint8 spi_no - SPI module number, Only "SPI" and "HSPI" are valid
+ *				uint8 data- transmitted data
+*******************************************************************************/
+void spi_mast_byte_write(uint8 spi_no,uint8 data)
+ {
+	uint32 regvalue;
+
+	if(spi_no>1) 		return; //handle invalid input number
+
+	while(READ_PERI_REG(SPI_CMD(spi_no))&SPI_USR);
+	CLEAR_PERI_REG_MASK(SPI_USER(spi_no), SPI_USR_MOSI|SPI_USR_MISO);
+
+	//SPI_FLASH_USER2 bit28-31 is cmd length,cmd bit length is value(0-15)+1,
+	// bit15-0 is cmd value.
+	WRITE_PERI_REG(SPI_USER2(spi_no), 
+					((7&SPI_USR_COMMAND_BITLEN)<<SPI_USR_COMMAND_BITLEN_S)|((uint32)data));
+	SET_PERI_REG_MASK(SPI_CMD(spi_no), SPI_USR);
+ }  
+
+/******************************************************************************
+ * FunctionName : spi_byte_write_espslave
+ * Description  : SPI master 1 byte transmission function for esp8266 slave,
+ * 			transmit 1byte data to esp8266 slave buffer needs 16bit transmission ,
+ * 			first byte is command 0x04 to write slave buffer, second byte is data
+ * Parameters   : 	uint8 spi_no - SPI module number, Only "SPI" and "HSPI" are valid
+ *				uint8 data- transmitted data
+*******************************************************************************/
+void spi_byte_write_espslave(uint8 spi_no,uint8 data)
+ {
+	uint32 regvalue;
+
+	if(spi_no>1) 		return; //handle invalid input number
+
+	while(READ_PERI_REG(SPI_CMD(spi_no))&SPI_USR);
+	SET_PERI_REG_MASK(SPI_USER(spi_no), SPI_USR_MOSI);
+	CLEAR_PERI_REG_MASK(SPI_USER(spi_no), SPI_USR_MISO|SPI_USR_ADDR|SPI_USR_DUMMY);
+
+	//SPI_FLASH_USER2 bit28-31 is cmd length,cmd bit length is value(0-15)+1,
+	// bit15-0 is cmd value.
+	//0x70000000 is for 8bits cmd, 0x04 is eps8266 slave write cmd value
+	WRITE_PERI_REG(SPI_USER2(spi_no), 
+					((7&SPI_USR_COMMAND_BITLEN)<<SPI_USR_COMMAND_BITLEN_S)|4);
+	WRITE_PERI_REG(SPI_W0(spi_no), (uint32)(data));
+	SET_PERI_REG_MASK(SPI_CMD(spi_no), SPI_USR);
+ }
+/******************************************************************************
+ * FunctionName : spi_byte_read_espslave
+ * Description  : SPI master 1 byte read function for esp8266 slave,
+ * 			read 1byte data from esp8266 slave buffer needs 16bit transmission ,
+ * 			first byte is command 0x06 to read slave buffer, second byte is recieved data
+ * Parameters   : 	uint8 spi_no - SPI module number, Only "SPI" and "HSPI" are valid
+ *				uint8* data- recieved data address
+*******************************************************************************/
+  void spi_byte_read_espslave(uint8 spi_no,uint8 *data)
+ {
+	uint32 regvalue;
+
+	if(spi_no>1) 		return; //handle invalid input number
+
+	while(READ_PERI_REG(SPI_CMD(spi_no))&SPI_USR);
+
+	SET_PERI_REG_MASK(SPI_USER(spi_no), SPI_USR_MISO);
+	CLEAR_PERI_REG_MASK(SPI_USER(spi_no), SPI_USR_MOSI|SPI_USR_ADDR|SPI_USR_DUMMY);
+		//SPI_FLASH_USER2 bit28-31 is cmd length,cmd bit length is value(0-15)+1,
+	// bit15-0 is cmd value.
+	//0x70000000 is for 8bits cmd, 0x06 is eps8266 slave read cmd value
+	WRITE_PERI_REG(SPI_USER2(spi_no), 
+					((7&SPI_USR_COMMAND_BITLEN)<<SPI_USR_COMMAND_BITLEN_S)|6);
+	SET_PERI_REG_MASK(SPI_CMD(spi_no), SPI_USR);
+	
+	while(READ_PERI_REG(SPI_CMD(spi_no))&SPI_USR);
+	*data=(uint8)(READ_PERI_REG(SPI_W0(spi_no))&0xff);
+ }
+
+/******************************************************************************
+ * FunctionName : spi_slave_init
+ * Description  : SPI slave mode initial funtion, including mode setting,
+ * 			IO setting, transmission interrupt opening, interrupt function registration
+ * Parameters   : 	uint8 spi_no - SPI module number, Only "SPI" and "HSPI" are valid
+*******************************************************************************/
+void spi_slave_init(uint8 spi_no)
+{
+    uint32 regvalue; 
+    if(spi_no>1)
+        return; //handle invalid input number
+
+    //clear bit9,bit8 of reg PERIPHS_IO_MUX
+    //bit9 should be cleared when HSPI clock doesn't equal CPU clock
+    //bit8 should be cleared when SPI clock doesn't equal CPU clock
+    ////WRITE_PERI_REG(PERIPHS_IO_MUX, 0x105); //clear bit9//TEST
+    if(spi_no==SPI){
+        PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_CLK_U, 1);//configure io to spi mode
+        PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_CMD_U, 1);//configure io to spi mode	
+        PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_DATA0_U, 1);//configure io to spi mode	
+        PIN_FUNC_SELECT(PERIPHS_IO_MUX_SD_DATA1_U, 1);//configure io to spi mode	
+    }else if(spi_no==HSPI){
+        PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDI_U, 2);//configure io to spi mode
+        PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTCK_U, 2);//configure io to spi mode	
+        PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTMS_U, 2);//configure io to spi mode	
+        PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDO_U, 2);//configure io to spi mode	
+    }
+
+    //regvalue=READ_PERI_REG(SPI_FLASH_SLAVE(spi_no));
+    //slave mode,slave use buffers which are register "SPI_FLASH_C0~C15", enable trans done isr
+    //set bit 30 bit 29 bit9,bit9 is trans done isr mask
+    SET_PERI_REG_MASK(	SPI_SLAVE(spi_no), 
+    						SPI_SLAVE_MODE|SPI_SLV_WR_RD_BUF_EN|
+                                         	SPI_SLV_WR_BUF_DONE_EN|SPI_SLV_RD_BUF_DONE_EN|
+                                         	SPI_SLV_WR_STA_DONE_EN|SPI_SLV_RD_STA_DONE_EN|
+                                         	SPI_TRANS_DONE_EN);
+    //disable general trans intr 
+    //CLEAR_PERI_REG_MASK(SPI_SLAVE(spi_no),SPI_TRANS_DONE_EN);
+
+    CLEAR_PERI_REG_MASK(SPI_USER(spi_no), SPI_FLASH_MODE);//disable flash operation mode
+    SET_PERI_REG_MASK(SPI_USER(spi_no),SPI_USR_MISO_HIGHPART);//SLAVE SEND DATA BUFFER IN C8-C15 
+
+
+//////**************RUN WHEN SLAVE RECIEVE*******************///////
+   //tow lines below is to configure spi timing.
+    SET_PERI_REG_MASK(SPI_CTRL2(spi_no),(0x2&SPI_MOSI_DELAY_NUM)<<SPI_MOSI_DELAY_NUM_S) ;//delay num
+    os_printf("SPI_CTRL2 is %08x\n",READ_PERI_REG(SPI_CTRL2(spi_no)));
+    WRITE_PERI_REG(SPI_CLOCK(spi_no), 0);
+
+
+    
+/////***************************************************//////	
+
+    //set 8 bit slave command length, because slave must have at least one bit addr, 
+    //8 bit slave+8bit addr, so master device first 2 bytes can be regarded as a command 
+    //and the  following bytes are datas, 
+    //32 bytes input wil be stored in SPI_FLASH_C0-C7
+    //32 bytes output data should be set to SPI_FLASH_C8-C15
+    WRITE_PERI_REG(SPI_USER2(spi_no), (0x7&SPI_USR_COMMAND_BITLEN)<<SPI_USR_COMMAND_BITLEN_S); //0x70000000
+
+    //set 8 bit slave recieve buffer length, the buffer is SPI_FLASH_C0-C7
+    //set 8 bit slave status register, which is the low 8 bit of register "SPI_FLASH_STATUS"
+    SET_PERI_REG_MASK(SPI_SLAVE1(spi_no),  ((0xff&SPI_SLV_BUF_BITLEN)<< SPI_SLV_BUF_BITLEN_S)|
+                                                                                        ((0x7&SPI_SLV_STATUS_BITLEN)<<SPI_SLV_STATUS_BITLEN_S)|
+                                                                                       ((0x7&SPI_SLV_WR_ADDR_BITLEN)<<SPI_SLV_WR_ADDR_BITLEN_S)|
+                                                                                       ((0x7&SPI_SLV_RD_ADDR_BITLEN)<<SPI_SLV_RD_ADDR_BITLEN_S));
+    
+    SET_PERI_REG_MASK(SPI_PIN(spi_no),BIT19);//BIT19   
+
+    //maybe enable slave transmission liston 
+    SET_PERI_REG_MASK(SPI_CMD(spi_no),SPI_USR);
+    //register level2 isr function, which contains spi, hspi and i2s events
+    ETS_SPI_INTR_ATTACH(spi_slave_isr_handler,NULL);
+    //enable level2 isr, which contains spi, hspi and i2s events
+    ETS_SPI_INTR_ENABLE(); 
+}
+
+
+
+
+
+/* =============================================================================================
+ * code below is for spi slave r/w testcase with 2 r/w state lines connected to the spi master mcu
+ * replace with your own process functions
+ * find "add system_os_post here" in spi_slave_isr_handler.
+ * =============================================================================================
+ */
+
+
+
+
+
+
+
+#ifdef SPI_SLAVE_DEBUG
+ /******************************************************************************
+ * FunctionName : hspi_master_readwrite_repeat
+ * Description  : SPI master test  function for reading and writing esp8266 slave buffer,
+ 			the function uses HSPI module 
+*******************************************************************************/
+os_timer_t timer2;
+
+void hspi_master_readwrite_repeat(void)
+{
+	static uint8 data=0;
+	uint8 temp;
+
+	os_timer_disarm(&timer2);
+	spi_byte_read_espslave(HSPI,&temp);
+
+	temp++;
+	spi_byte_write_espslave(HSPI,temp);
+       os_timer_setfn(&timer2, (os_timer_func_t *)hspi_master_readwrite_repeat, NULL);
+       os_timer_arm(&timer2, 500, 0);
+}
+#endif
+
+
+/******************************************************************************
+ * FunctionName : spi_slave_isr_handler
+ * Description  : SPI interrupt function, SPI HSPI and I2S interrupt can trig this function
+ 			   some basic operation like clear isr flag has been done, 
+ 			   and it is availible	for adding user coder in the funtion
+ * Parameters  : void *para- function parameter address, which has been registered in function spi_slave_init
+*******************************************************************************/
+#include "gpio.h"
+#include "user_interface.h"
+#include "mem.h"
+static uint8 spi_data[32] = {0};
+static uint8 idx = 0;
+static uint8 spi_flg = 0;
+#define SPI_MISO
+#define SPI_QUEUE_LEN 8
+os_event_t * spiQueue;
+#define MOSI  0
+#define MISO  1
+#define STATUS_R_IN_WR 2
+#define STATUS_W  3
+#define TR_DONE_ALONE  4
+#define WR_RD 5
+#define DATA_ERROR 6
+#define STATUS_R_IN_RD 7
+//init the two intr line of slave
+//gpio0: wr_ready ,and  
+//gpio2: rd_ready , controlled by slave
+void ICACHE_FLASH_ATTR
+    gpio_init()
+{
+
+    	PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO0_U, FUNC_GPIO0);
+	PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO2_U, FUNC_GPIO2);
+	//PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO4_U, FUNC_GPIO4);
+    	GPIO_OUTPUT_SET(0, 1);
+    	GPIO_OUTPUT_SET(2, 0);
+	//GPIO_OUTPUT_SET(4, 1);
+}
+
+
+
+void spi_slave_isr_handler(void *para)
+{
+	uint32 regvalue,calvalue;
+    	static uint8 state =0;
+	uint32 recv_data,send_data;
+
+	if(READ_PERI_REG(0x3ff00020)&BIT4){		
+        //following 3 lines is to clear isr signal
+        	CLEAR_PERI_REG_MASK(SPI_SLAVE(SPI), 0x3ff);
+    	}else if(READ_PERI_REG(0x3ff00020)&BIT7){ //bit7 is for hspi isr,
+        	regvalue=READ_PERI_REG(SPI_SLAVE(HSPI));
+         	CLEAR_PERI_REG_MASK(SPI_SLAVE(HSPI),  
+								SPI_TRANS_DONE_EN|
+								SPI_SLV_WR_STA_DONE_EN|
+								SPI_SLV_RD_STA_DONE_EN|
+								SPI_SLV_WR_BUF_DONE_EN|
+								SPI_SLV_RD_BUF_DONE_EN);
+        	SET_PERI_REG_MASK(SPI_SLAVE(HSPI), SPI_SYNC_RESET);
+        	CLEAR_PERI_REG_MASK(SPI_SLAVE(HSPI),  
+								SPI_TRANS_DONE|
+								SPI_SLV_WR_STA_DONE|
+								SPI_SLV_RD_STA_DONE|
+								SPI_SLV_WR_BUF_DONE|
+								SPI_SLV_RD_BUF_DONE); 
+		SET_PERI_REG_MASK(SPI_SLAVE(HSPI),  
+								SPI_TRANS_DONE_EN|
+								SPI_SLV_WR_STA_DONE_EN|
+								SPI_SLV_RD_STA_DONE_EN|
+								SPI_SLV_WR_BUF_DONE_EN|
+								SPI_SLV_RD_BUF_DONE_EN);
+
+		if(regvalue&SPI_SLV_WR_BUF_DONE){ 
+            		GPIO_OUTPUT_SET(0, 0);
+            		idx=0;
+            		while(idx<8){
+            			recv_data=READ_PERI_REG(SPI_W0(HSPI)+(idx<<2));
+            			spi_data[idx<<2] = recv_data&0xff;
+            			spi_data[(idx<<2)+1] = (recv_data>>8)&0xff;
+            			spi_data[(idx<<2)+2] = (recv_data>>16)&0xff;
+            			spi_data[(idx<<2)+3] = (recv_data>>24)&0xff;
+            			idx++;
+			}
+			//add system_os_post here
+            		GPIO_OUTPUT_SET(0, 1);
+		}
+        	if(regvalue&SPI_SLV_RD_BUF_DONE){
+			//it is necessary to call GPIO_OUTPUT_SET(2, 1), when new data is preped in SPI_W8-15 and needs to be sended.
+           		GPIO_OUTPUT_SET(2, 0);
+			//add system_os_post here
+			//system_os_post(USER_TASK_PRIO_1,WR_RD,regvalue);
+
+        	}
+    
+    }else if(READ_PERI_REG(0x3ff00020)&BIT9){ //bit7 is for i2s isr,
+
+    }
+}
+
+
+#ifdef SPI_SLAVE_DEBUG
+
+void ICACHE_FLASH_ATTR
+    set_miso_data()
+{
+    if(GPIO_INPUT_GET(2)==0){
+        WRITE_PERI_REG(SPI_W8(HSPI),0x05040302);
+        WRITE_PERI_REG(SPI_W9(HSPI),0x09080706);
+        WRITE_PERI_REG(SPI_W10(HSPI),0x0d0c0b0a);
+        WRITE_PERI_REG(SPI_W11(HSPI),0x11100f0e);
+
+        WRITE_PERI_REG(SPI_W12(HSPI),0x15141312);
+        WRITE_PERI_REG(SPI_W13(HSPI),0x19181716);
+        WRITE_PERI_REG(SPI_W14(HSPI),0x1d1c1b1a);
+        WRITE_PERI_REG(SPI_W15(HSPI),0x21201f1e);
+        GPIO_OUTPUT_SET(2, 1);
+    }
+}
+
+
+
+void ICACHE_FLASH_ATTR
+    disp_spi_data()
+{
+    uint8 i = 0;
+    for(i=0;i<32;i++){
+        os_printf("data %d : 0x%02x\n\r",i,spi_data[i]);
+    }
+    //os_printf("d31:0x%02x\n\r",spi_data[31]);
+}
+
+
+void ICACHE_FLASH_ATTR
+    spi_task(os_event_t *e)
+{
+    uint8 data;
+    switch(e->sig){
+       case MOSI:
+            	disp_spi_data();
+            	break;
+	case STATUS_R_IN_WR :
+		os_printf("SR ERR in WRPR,Reg:%08x \n",e->par);
+		break;
+	case STATUS_W:
+		os_printf("SW ERR,Reg:%08x\n",e->par);
+		break;	
+	case TR_DONE_ALONE:
+		os_printf("TD ALO ERR,Reg:%08x\n",e->par);
+		break;	
+	case WR_RD:
+		os_printf("WR&RD ERR,Reg:%08x\n",e->par);
+		break;	
+	case DATA_ERROR:
+		os_printf("Data ERR,Reg:%08x\n",e->par);
+		break;
+	case STATUS_R_IN_RD :
+		os_printf("SR ERR in RDPR,Reg:%08x\n",e->par);
+		break;	
+        default:
+            break;
+    }
+}
+
+void ICACHE_FLASH_ATTR
+    spi_task_init(void)
+{
+    spiQueue = (os_event_t*)os_malloc(sizeof(os_event_t)*SPI_QUEUE_LEN);
+    system_os_task(spi_task,USER_TASK_PRIO_1,spiQueue,SPI_QUEUE_LEN);
+}
+
+os_timer_t spi_timer_test;
+
+void ICACHE_FLASH_ATTR
+    spi_test_init()
+{
+    os_printf("spi init\n\r");
+    spi_slave_init(HSPI);
+    os_printf("gpio init\n\r");
+    gpio_init();
+    os_printf("spi task init \n\r");
+    spi_task_init();
+#ifdef SPI_MISO
+    os_printf("spi miso init\n\r");
+    set_miso_data();
+#endif
+    
+    //os_timer_disarm(&spi_timer_test);
+    //os_timer_setfn(&spi_timer_test, (os_timer_func_t *)set_miso_data, NULL);//wjl
+    //os_timer_arm(&spi_timer_test,50,1);
+}
+
+#endif
+
+

app/driver/uart.c

@@ -0,0 +1,250 @@
+/******************************************************************************
+ * Copyright 2013-2014 Espressif Systems (Wuxi)
+ *
+ * FileName: uart.c
+ *
+ * Description: Two UART mode configration and interrupt handler.
+ *              Check your hardware connection while use this mode.
+ *
+ * Modification history:
+ *     2014/3/12, v1.0 create this file.
+*******************************************************************************/
+#include "ets_sys.h"
+#include "osapi.h"
+#include "driver/uart.h"
+#include "user_config.h"
+
+#define UART0   0
+#define UART1   1
+
+// UartDev is defined and initialized in rom code.
+extern UartDevice UartDev;
+
+LOCAL void uart0_rx_intr_handler(void *para);
+
+/******************************************************************************
+ * FunctionName : uart_config
+ * Description  : Internal used function
+ *                UART0 used for data TX/RX, RX buffer size is 0x100, interrupt enabled
+ *                UART1 just used for debug output
+ * Parameters   : uart_no, use UART0 or UART1 defined ahead
+ * Returns      : NONE
+*******************************************************************************/
+LOCAL void ICACHE_FLASH_ATTR
+uart_config(uint8 uart_no)
+{
+    if (uart_no == UART1) {
+        PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO2_U, FUNC_U1TXD_BK);
+    } else {
+        /* rcv_buff size if 0x100 */
+        ETS_UART_INTR_ATTACH(uart0_rx_intr_handler,  &(UartDev.rcv_buff));
+        PIN_PULLUP_DIS(PERIPHS_IO_MUX_U0TXD_U);
+        PIN_FUNC_SELECT(PERIPHS_IO_MUX_U0TXD_U, FUNC_U0TXD);
+        PIN_PULLUP_EN(PERIPHS_IO_MUX_U0RXD_U);
+        PIN_FUNC_SELECT(PERIPHS_IO_MUX_U0RXD_U, FUNC_U0RXD);
+    }
+
+    uart_div_modify(uart_no, UART_CLK_FREQ / (UartDev.baut_rate));
+
+    WRITE_PERI_REG(UART_CONF0(uart_no),    UartDev.exist_parity
+                   | UartDev.parity
+                   | (UartDev.stop_bits << UART_STOP_BIT_NUM_S)
+                   | (UartDev.data_bits << UART_BIT_NUM_S));
+
+
+    //clear rx and tx fifo,not ready
+    SET_PERI_REG_MASK(UART_CONF0(uart_no), UART_RXFIFO_RST | UART_TXFIFO_RST);
+    CLEAR_PERI_REG_MASK(UART_CONF0(uart_no), UART_RXFIFO_RST | UART_TXFIFO_RST);
+
+    //set rx fifo trigger
+    WRITE_PERI_REG(UART_CONF1(uart_no), (UartDev.rcv_buff.TrigLvl & UART_RXFIFO_FULL_THRHD) << UART_RXFIFO_FULL_THRHD_S);
+
+    //clear all interrupt
+    WRITE_PERI_REG(UART_INT_CLR(uart_no), 0xffff);
+    //enable rx_interrupt
+    SET_PERI_REG_MASK(UART_INT_ENA(uart_no), UART_RXFIFO_FULL_INT_ENA);
+}
+
+/******************************************************************************
+ * FunctionName : uart_tx_one_char
+ * Description  : Internal used function
+ *                Use uart interface to transfer one char
+ * Parameters   : uint8 TxChar - character to tx
+ * Returns      : OK
+*******************************************************************************/
+STATUS ICACHE_FLASH_ATTR
+uart_tx_one_char(uint8 uart, uint8 TxChar)
+{
+    while (true)
+    {
+      uint32 fifo_cnt = READ_PERI_REG(UART_STATUS(uart)) & (UART_TXFIFO_CNT<<UART_TXFIFO_CNT_S);
+      if ((fifo_cnt >> UART_TXFIFO_CNT_S & UART_TXFIFO_CNT) < 126) {
+        break;
+      }
+    }
+
+    WRITE_PERI_REG(UART_FIFO(uart) , TxChar);
+    return OK;
+}
+
+/******************************************************************************
+ * FunctionName : uart1_write_char
+ * Description  : Internal used function
+ *                Do some special deal while tx char is '\r' or '\n'
+ * Parameters   : char c - character to tx
+ * Returns      : NONE
+*******************************************************************************/
+LOCAL void ICACHE_FLASH_ATTR
+uart1_write_char(char c)
+{
+  if (c == '\n')
+  {
+    uart_tx_one_char(UART1, '\r');
+    uart_tx_one_char(UART1, '\n');
+  }
+  else if (c == '\r')
+  {
+  }
+  else
+  {
+    uart_tx_one_char(UART1, c);
+  }
+}
+
+/******************************************************************************
+ * FunctionName : uart0_tx_buffer
+ * Description  : use uart0 to transfer buffer
+ * Parameters   : uint8 *buf - point to send buffer
+ *                uint16 len - buffer len
+ * Returns      :
+*******************************************************************************/
+void ICACHE_FLASH_ATTR
+uart0_tx_buffer(uint8 *buf, uint16 len)
+{
+  uint16 i;
+
+  for (i = 0; i < len; i++)
+  {
+    uart_tx_one_char(UART0, buf[i]);
+  }
+}
+
+/******************************************************************************
+ * FunctionName : uart0_sendStr
+ * Description  : use uart0 to transfer buffer
+ * Parameters   : uint8 *buf - point to send buffer
+ *                uint16 len - buffer len
+ * Returns      :
+*******************************************************************************/
+void ICACHE_FLASH_ATTR uart0_sendStr(const char *str)
+{
+    while(*str)
+    {
+        // uart_tx_one_char(UART0, *str++);
+        uart0_putc(*str++);
+    }
+}
+
+/******************************************************************************
+ * FunctionName : uart0_putc
+ * Description  : use uart0 to transfer char
+ * Parameters   : uint8 c - send char
+ * Returns      :
+*******************************************************************************/
+void ICACHE_FLASH_ATTR uart0_putc(const char c)
+{
+  if (c == '\n')
+  {
+    uart_tx_one_char(UART0, '\r');
+    uart_tx_one_char(UART0, '\n');
+  }
+  else if (c == '\r')
+  {
+  }
+  else
+  {
+    uart_tx_one_char(UART0, c);
+  }
+}
+
+/******************************************************************************
+ * FunctionName : uart0_rx_intr_handler
+ * Description  : Internal used function
+ *                UART0 interrupt handler, add self handle code inside
+ * Parameters   : void *para - point to ETS_UART_INTR_ATTACH's arg
+ * Returns      : NONE
+*******************************************************************************/
+LOCAL void
+uart0_rx_intr_handler(void *para)
+{
+    /* uart0 and uart1 intr combine togther, when interrupt occur, see reg 0x3ff20020, bit2, bit0 represents
+     * uart1 and uart0 respectively
+     */
+    RcvMsgBuff *pRxBuff = (RcvMsgBuff *)para;
+    uint8 RcvChar;
+
+    if (UART_RXFIFO_FULL_INT_ST != (READ_PERI_REG(UART_INT_ST(UART0)) & UART_RXFIFO_FULL_INT_ST)) {
+        return;
+    }
+
+    WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_FULL_INT_CLR);
+
+    while (READ_PERI_REG(UART_STATUS(UART0)) & (UART_RXFIFO_CNT << UART_RXFIFO_CNT_S)) {
+        RcvChar = READ_PERI_REG(UART_FIFO(UART0)) & 0xFF;
+
+        /* you can add your handle code below.*/
+
+        *(pRxBuff->pWritePos) = RcvChar;
+
+        // insert here for get one command line from uart
+        if (RcvChar == '\r' || RcvChar == '\n' ) {
+            pRxBuff->BuffState = WRITE_OVER;
+        }
+        
+        if (pRxBuff->pWritePos == (pRxBuff->pRcvMsgBuff + RX_BUFF_SIZE)) {
+            // overflow ...we may need more error handle here.
+            pRxBuff->pWritePos = pRxBuff->pRcvMsgBuff ;
+        } else {
+            pRxBuff->pWritePos++;
+        }
+
+        if (pRxBuff->pWritePos == pRxBuff->pReadPos){   // overflow one byte, need push pReadPos one byte ahead
+            if (pRxBuff->pReadPos == (pRxBuff->pRcvMsgBuff + RX_BUFF_SIZE)) {
+                pRxBuff->pReadPos = pRxBuff->pRcvMsgBuff ; 
+            } else {
+                pRxBuff->pReadPos++;
+            }
+        }
+    }
+}
+
+/******************************************************************************
+ * FunctionName : uart_init
+ * Description  : user interface for init uart
+ * Parameters   : UartBautRate uart0_br - uart0 bautrate
+ *                UartBautRate uart1_br - uart1 bautrate
+ * Returns      : NONE
+*******************************************************************************/
+void ICACHE_FLASH_ATTR
+uart_init(UartBautRate uart0_br, UartBautRate uart1_br)
+{
+    // rom use 74880 baut_rate, here reinitialize
+    UartDev.baut_rate = uart0_br;
+    uart_config(UART0);
+    UartDev.baut_rate = uart1_br;
+    uart_config(UART1);
+    ETS_UART_INTR_ENABLE();
+
+    // install uart1 putc callback
+#ifndef NODE_DEBUG
+    os_install_putc1((void *)uart1_write_char);
+#endif
+}
+
+void ICACHE_FLASH_ATTR
+uart_setup(uint8 uart_no)
+{
+    ETS_UART_INTR_DISABLE();
+    uart_config(uart_no);
+    ETS_UART_INTR_ENABLE();
+}

app/gen_misc.bat

@@ -0,0 +1,27 @@
+@echo off
+set BACKPATH=%PATH%
+set PATH=%BACKPATH%;%CD%\..\tools
+@echo on
+
+del /F ..\bin\eagle.app.v6.flash.bin ..\bin\eagle.app.v6.irom0text.bin ..\bin\eagle.app.v6.dump ..\bin\eagle.app.v6.S
+
+cd .output\eagle\debug\image
+
+xt-objdump -x -s eagle.app.v6.out > ..\..\..\..\..\bin\eagle.app.v6.dump
+xt-objdump -S eagle.app.v6.out > ..\..\..\..\..\bin\eagle.app.v6.S
+
+xt-objcopy --only-section .text -O binary eagle.app.v6.out eagle.app.v6.text.bin
+xt-objcopy --only-section .data -O binary eagle.app.v6.out eagle.app.v6.data.bin
+xt-objcopy --only-section .rodata -O binary eagle.app.v6.out eagle.app.v6.rodata.bin
+xt-objcopy --only-section .irom0.text -O binary eagle.app.v6.out eagle.app.v6.irom0text.bin
+
+gen_appbin.py eagle.app.v6.out v6
+
+xcopy /y eagle.app.v6.irom0text.bin ..\..\..\..\..\bin\
+xcopy /y eagle.app.v6.flash.bin ..\..\..\..\..\bin\
+
+cd ..\..\..\..\
+
+@echo off
+set PATH=%BACKPATH%
+@echo on

app/gen_misc.sh

@@ -0,0 +1,25 @@
+#!/bin/bash -x
+make
+if [ $? == 0 ];then
+rm ../bin/eagle.app.v6.flash.bin ../bin/eagle.app.v6.irom0text.bin ../bin/eagle.app.v6.dump ../bin/eagle.app.v6.S
+
+cd .output/eagle/debug/image
+
+xt-objdump -x -s eagle.app.v6.out > ../../../../../bin/eagle.app.v6.dump
+xt-objdump -S eagle.app.v6.out > ../../../../../bin/eagle.app.v6.S
+
+xt-objcopy --only-section .text -O binary eagle.app.v6.out eagle.app.v6.text.bin
+xt-objcopy --only-section .data -O binary eagle.app.v6.out eagle.app.v6.data.bin
+xt-objcopy --only-section .rodata -O binary eagle.app.v6.out eagle.app.v6.rodata.bin
+xt-objcopy --only-section .irom0.text -O binary eagle.app.v6.out eagle.app.v6.irom0text.bin
+
+../../../../../tools/gen_appbin.py eagle.app.v6.out v6
+
+cp eagle.app.v6.irom0text.bin ../../../../../bin/
+cp eagle.app.v6.flash.bin ../../../../../bin/
+
+cd ../../../../../
+
+else
+echo "make error"
+fi

app/gen_misc_plus.bat

@@ -0,0 +1,27 @@
+@echo off
+set BACKPATH=%PATH%
+set PATH=%BACKPATH%;%CD%\..\tools
+@echo on
+
+rm ..\bin\upgrade\%1.bin
+
+cd .output\eagle\debug\image\
+
+xt-objcopy --only-section .text -O binary eagle.app.v6.out eagle.app.v6.text.bin
+xt-objcopy --only-section .data -O binary eagle.app.v6.out eagle.app.v6.data.bin
+xt-objcopy --only-section .rodata -O binary eagle.app.v6.out eagle.app.v6.rodata.bin
+xt-objcopy --only-section .irom0.text -O binary eagle.app.v6.out eagle.app.v6.irom0text.bin
+
+gen_appbin.py eagle.app.v6.out v6
+
+gen_flashbin.py eagle.app.v6.flash.bin eagle.app.v6.irom0text.bin
+
+cp eagle.app.flash.bin %1.bin
+
+xcopy /y %1.bin ..\..\..\..\..\bin\upgrade\
+
+cd ..\..\..\..\
+
+@echo off
+set PATH=%BACKPATH%
+@echo on

app/gen_misc_plus.sh

@@ -0,0 +1,28 @@
+#!/bin/bash -x
+touch user/user_main.c
+make APP=$1
+if [ $? == 0 ];then
+rm ../bin/upgrade/user$1.bin ../bin/upgrade/user$1.dump ../bin/upgrade/user$1.S
+
+cd .output/eagle/debug/image/
+
+xt-objdump -x -s eagle.app.v6.out > ../../../../../bin/upgrade/user$1.dump
+xt-objdump -S eagle.app.v6.out > ../../../../../bin/upgrade/user$1.S
+
+xt-objcopy --only-section .text -O binary eagle.app.v6.out eagle.app.v6.text.bin
+xt-objcopy --only-section .data -O binary eagle.app.v6.out eagle.app.v6.data.bin
+xt-objcopy --only-section .rodata -O binary eagle.app.v6.out eagle.app.v6.rodata.bin
+xt-objcopy --only-section .irom0.text -O binary eagle.app.v6.out eagle.app.v6.irom0text.bin
+
+../../../../../tools/gen_appbin.py eagle.app.v6.out v6
+
+../../../../../tools/gen_flashbin.py eagle.app.v6.flash.bin eagle.app.v6.irom0text.bin
+
+cp eagle.app.flash.bin user$1.bin
+cp user$1.bin ../../../../../bin/upgrade/
+
+cd ../../../../../
+
+else
+echo "make error"
+fi

app/include/arch/cc.h

@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2001, Swedish Institute of Computer Science.
+ * All rights reserved. 
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions 
+ * are met: 
+ * 1. Redistributions of source code must retain the above copyright 
+ *    notice, this list of conditions and the following disclaimer. 
+ * 2. Redistributions in binary form must reproduce the above copyright 
+ *    notice, this list of conditions and the following disclaimer in the 
+ *    documentation and/or other materials provided with the distribution. 
+ * 3. Neither the name of the Institute nor the names of its contributors 
+ *    may be used to endorse or promote products derived from this software 
+ *    without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
+ * SUCH DAMAGE. 
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __ARCH_CC_H__
+#define __ARCH_CC_H__
+
+//#include <string.h>
+#include "c_types.h"
+#include "ets_sys.h"
+#include "osapi.h"
+#define EFAULT 14
+
+//#define LWIP_PROVIDE_ERRNO
+
+#if (1)
+#define BYTE_ORDER LITTLE_ENDIAN
+#else
+#define BYTE_ORDER BIG_ENDIAN
+#endif
+
+
+typedef unsigned   char    u8_t;
+typedef signed     char    s8_t;
+typedef unsigned   short   u16_t;
+typedef signed     short   s16_t;
+typedef unsigned   long    u32_t;
+typedef signed     long    s32_t;
+typedef unsigned long   mem_ptr_t;
+
+#define S16_F "d"
+#define U16_F "d"
+#define X16_F "x"
+
+#define S32_F "d"
+#define U32_F "d"
+#define X32_F "x"
+
+
+
+//#define PACK_STRUCT_FIELD(x) x __attribute__((packed))
+#define PACK_STRUCT_FIELD(x) x
+#define PACK_STRUCT_STRUCT __attribute__((packed))
+#define PACK_STRUCT_BEGIN
+#define PACK_STRUCT_END
+
+//#define LWIP_DEBUG
+
+#ifdef LWIP_DEBUG
+#define LWIP_PLATFORM_DIAG(x) os_printf x
+#define LWIP_PLATFORM_ASSERT(x) ETS_ASSERT(x)
+#else
+#define LWIP_PLATFORM_DIAG(x)
+#define LWIP_PLATFORM_ASSERT(x)
+#endif
+
+#define SYS_ARCH_DECL_PROTECT(x)
+#define SYS_ARCH_PROTECT(x)
+#define SYS_ARCH_UNPROTECT(x)
+
+#define LWIP_PLATFORM_BYTESWAP 1
+#define LWIP_PLATFORM_HTONS(_n)  ((u16_t)((((_n) & 0xff) << 8) | (((_n) >> 8) & 0xff)))
+#define LWIP_PLATFORM_HTONL(_n)  ((u32_t)( (((_n) & 0xff) << 24) | (((_n) & 0xff00) << 8) | (((_n) >> 8)  & 0xff00) | (((_n) >> 24) & 0xff) ))
+
+#if LWIP_RAW
+extern u8_t memp_memory_RAW_PCB_base[];
+#endif /* LWIP_RAW */
+
+#if LWIP_UDP
+extern u8_t memp_memory_UDP_PCB_base[];
+#endif /* LWIP_UDP */
+
+#if LWIP_TCP
+extern u8_t memp_memory_TCP_PCB_base[];
+extern u8_t memp_memory_TCP_PCB_LISTEN_base[];
+extern u8_t memp_memory_TCP_SEG_base[] SHMEM_ATTR;
+#endif /* LWIP_TCP */
+
+#if (!NO_SYS || (NO_SYS && !NO_SYS_NO_TIMERS)) /* LWIP_TIMERS */
+extern u8_t memp_memory_SYS_TIMEOUT_base[];
+#endif /* LWIP_TIMERS */
+
+extern u8_t memp_memory_PBUF_base[];
+extern u8_t memp_memory_PBUF_POOL_base[];
+
+
+
+#endif /* __ARCH_CC_H__ */

app/include/arch/perf.h

@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2001, Swedish Institute of Computer Science.
+ * All rights reserved. 
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions 
+ * are met: 
+ * 1. Redistributions of source code must retain the above copyright 
+ *    notice, this list of conditions and the following disclaimer. 
+ * 2. Redistributions in binary form must reproduce the above copyright 
+ *    notice, this list of conditions and the following disclaimer in the 
+ *    documentation and/or other materials provided with the distribution. 
+ * 3. Neither the name of the Institute nor the names of its contributors 
+ *    may be used to endorse or promote products derived from this software 
+ *    without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
+ * SUCH DAMAGE. 
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __PERF_H__
+#define __PERF_H__
+
+#define PERF_START    /* null definition */
+#define PERF_STOP(x)  /* null definition */
+
+#endif /* __PERF_H__ */

app/include/driver/gpio16.h

@@ -0,0 +1,9 @@
+#ifndef __GPIO16_H__
+#define __GPIO16_H__
+
+void gpio16_output_conf(void);
+void gpio16_output_set(uint8 value);
+void gpio16_input_conf(void);
+uint8 gpio16_input_get(void);
+
+#endif

app/include/driver/i2c_master.h

@@ -0,0 +1,69 @@
+#ifndef __I2C_MASTER_H__
+#define __I2C_MASTER_H__
+
+#define I2C_MASTER_SDA_MUX (pin_mux[sda])
+#define I2C_MASTER_SCL_MUX (pin_mux[scl])
+#define I2C_MASTER_SDA_GPIO (pinSDA)
+#define I2C_MASTER_SCL_GPIO (pinSCL)
+#define I2C_MASTER_SDA_FUNC (pin_func[sda])
+#define I2C_MASTER_SCL_FUNC (pin_func[scl])
+
+// #define I2C_MASTER_SDA_MUX PERIPHS_IO_MUX_GPIO2_U
+// #define I2C_MASTER_SCL_MUX PERIPHS_IO_MUX_MTDO_U
+// #define I2C_MASTER_SDA_GPIO 2
+// #define I2C_MASTER_SCL_GPIO 15
+// #define I2C_MASTER_SDA_FUNC FUNC_GPIO2
+// #define I2C_MASTER_SCL_FUNC FUNC_GPIO15
+
+// #define I2C_MASTER_SDA_MUX PERIPHS_IO_MUX_GPIO2_U
+// #define I2C_MASTER_SCL_MUX PERIPHS_IO_MUX_MTMS_U
+// #define I2C_MASTER_SDA_GPIO 2
+// #define I2C_MASTER_SCL_GPIO 14
+// #define I2C_MASTER_SDA_FUNC FUNC_GPIO2
+// #define I2C_MASTER_SCL_FUNC FUNC_GPIO14
+
+//#define I2C_MASTER_SDA_MUX PERIPHS_IO_MUX_GPIO2_U
+//#define I2C_MASTER_SCL_MUX PERIPHS_IO_MUX_GPIO0_U
+//#define I2C_MASTER_SDA_GPIO 2
+//#define I2C_MASTER_SCL_GPIO 0
+//#define I2C_MASTER_SDA_FUNC FUNC_GPIO2
+//#define I2C_MASTER_SCL_FUNC FUNC_GPIO0
+
+#if 0
+#define I2C_MASTER_GPIO_SET(pin)  \
+    gpio_output_set(1<<pin,0,1<<pin,0)
+
+#define I2C_MASTER_GPIO_CLR(pin) \
+    gpio_output_set(0,1<<pin,1<<pin,0)
+
+#define I2C_MASTER_GPIO_OUT(pin,val) \
+    if(val) I2C_MASTER_GPIO_SET(pin);\
+    else I2C_MASTER_GPIO_CLR(pin)
+#endif
+
+#define I2C_MASTER_SDA_HIGH_SCL_HIGH()  \
+    gpio_output_set(1<<I2C_MASTER_SDA_GPIO | 1<<I2C_MASTER_SCL_GPIO, 0, 1<<I2C_MASTER_SDA_GPIO | 1<<I2C_MASTER_SCL_GPIO, 0)
+
+#define I2C_MASTER_SDA_HIGH_SCL_LOW()  \
+    gpio_output_set(1<<I2C_MASTER_SDA_GPIO, 1<<I2C_MASTER_SCL_GPIO, 1<<I2C_MASTER_SDA_GPIO | 1<<I2C_MASTER_SCL_GPIO, 0)
+
+#define I2C_MASTER_SDA_LOW_SCL_HIGH()  \
+    gpio_output_set(1<<I2C_MASTER_SCL_GPIO, 1<<I2C_MASTER_SDA_GPIO, 1<<I2C_MASTER_SDA_GPIO | 1<<I2C_MASTER_SCL_GPIO, 0)
+
+#define I2C_MASTER_SDA_LOW_SCL_LOW()  \
+    gpio_output_set(0, 1<<I2C_MASTER_SDA_GPIO | 1<<I2C_MASTER_SCL_GPIO, 1<<I2C_MASTER_SDA_GPIO | 1<<I2C_MASTER_SCL_GPIO, 0)
+
+void i2c_master_gpio_init(uint8 sda, uint8 scl);
+void i2c_master_init(void);
+
+#define i2c_master_wait    os_delay_us
+void i2c_master_stop(void);
+void i2c_master_start(void);
+void i2c_master_setAck(uint8 level);
+uint8 i2c_master_getAck(void);
+uint8 i2c_master_readByte(void);
+void i2c_master_writeByte(uint8 wrdata);
+uint8 i2c_master_get_pinSDA();
+uint8 i2c_master_get_pinSCL();
+
+#endif

app/include/driver/key.h

@@ -0,0 +1,27 @@
+#ifndef __KEY_H__
+#define __KEY_H__
+
+#include "gpio.h"
+
+typedef void (* key_function)(void);
+
+struct single_key_param {
+    uint8 key_level;
+    uint8 gpio_id;
+    uint8 gpio_func;
+    uint32 gpio_name;
+    os_timer_t key_5s;
+    os_timer_t key_50ms;
+    key_function short_press;
+    key_function long_press;
+};
+
+struct keys_param {
+    uint8 key_num;
+    struct single_key_param **single_key;
+};
+
+struct single_key_param *key_init_single(uint8 gpio_id, uint32 gpio_name, uint8 gpio_func, key_function long_press, key_function short_press);
+void key_init(struct keys_param *key);
+
+#endif

app/include/driver/onewire.h

@@ -0,0 +1,150 @@
+#ifndef __ONEWIRE_H__
+#define __ONEWIRE_H__
+
+#include "c_types.h"
+
+// You can exclude certain features from OneWire.  In theory, this
+// might save some space.  In practice, the compiler automatically
+// removes unused code (technically, the linker, using -fdata-sections
+// and -ffunction-sections when compiling, and Wl,--gc-sections
+// when linking), so most of these will not result in any code size
+// reduction.  Well, unless you try to use the missing features
+// and redesign your program to not need them!  ONEWIRE_CRC8_TABLE
+// is the exception, because it selects a fast but large algorithm
+// or a small but slow algorithm.
+
+// you can exclude onewire_search by defining that to 0
+#ifndef ONEWIRE_SEARCH
+#define ONEWIRE_SEARCH 1
+#endif
+
+// You can exclude CRC checks altogether by defining this to 0
+#ifndef ONEWIRE_CRC
+#define ONEWIRE_CRC 1
+#endif
+
+// Select the table-lookup method of computing the 8-bit CRC
+// by setting this to 1.  The lookup table enlarges code size by
+// about 250 bytes.  It does NOT consume RAM (but did in very
+// old versions of OneWire).  If you disable this, a slower
+// but very compact algorithm is used.
+#ifndef ONEWIRE_CRC8_TABLE
+#define ONEWIRE_CRC8_TABLE 1
+#endif
+
+// You can allow 16-bit CRC checks by defining this to 1
+// (Note that ONEWIRE_CRC must also be 1.)
+#ifndef ONEWIRE_CRC16
+#define ONEWIRE_CRC16 1
+#endif
+
+// Platform specific I/O definitions
+
+#define DIRECT_READ(pin)         (0x1 & GPIO_INPUT_GET(GPIO_ID_PIN(pin_num[pin])))
+#define DIRECT_MODE_INPUT(pin)   GPIO_DIS_OUTPUT(pin_num[pin])
+#define DIRECT_MODE_OUTPUT(pin)
+#define DIRECT_WRITE_LOW(pin)    (GPIO_OUTPUT_SET(GPIO_ID_PIN(pin_num[pin]), 0))
+#define DIRECT_WRITE_HIGH(pin)   (GPIO_OUTPUT_SET(GPIO_ID_PIN(pin_num[pin]), 1))
+
+void onewire_init(uint8_t pin);
+
+// Perform a 1-Wire reset cycle. Returns 1 if a device responds
+// with a presence pulse.  Returns 0 if there is no device or the
+// bus is shorted or otherwise held low for more than 250uS
+uint8_t onewire_reset(uint8_t pin);
+
+// Issue a 1-Wire rom select command, you do the reset first.
+void onewire_select(uint8_t pin, const uint8_t rom[8]);
+
+// Issue a 1-Wire rom skip command, to address all on bus.
+void onewire_skip(uint8_t pin);
+
+// Write a byte. If 'power' is one then the wire is held high at
+// the end for parasitically powered devices. You are responsible
+// for eventually depowering it by calling depower() or doing
+// another read or write.
+void onewire_write(uint8_t pin, uint8_t v, uint8_t power);
+
+void onewire_write_bytes(uint8_t pin, const uint8_t *buf, uint16_t count, bool power);
+
+// Read a byte.
+uint8_t onewire_read(uint8_t pin);
+
+void onewire_read_bytes(uint8_t pin, uint8_t *buf, uint16_t count);
+
+// Write a bit. The bus is always left powered at the end, see
+// note in write() about that.
+// void onewire_write_bit(uint8_t pin, uint8_t v);
+
+// Read a bit.
+// uint8_t onewire_read_bit(uint8_t pin);
+
+// Stop forcing power onto the bus. You only need to do this if
+// you used the 'power' flag to write() or used a write_bit() call
+// and aren't about to do another read or write. You would rather
+// not leave this powered if you don't have to, just in case
+// someone shorts your bus.
+void onewire_depower(uint8_t pin);
+
+#if ONEWIRE_SEARCH
+// Clear the search state so that if will start from the beginning again.
+void onewire_reset_search(uint8_t pin);
+
+// Setup the search to find the device type 'family_code' on the next call
+// to search(*newAddr) if it is present.
+void onewire_target_search(uint8_t pin, uint8_t family_code);
+
+// Look for the next device. Returns 1 if a new address has been
+// returned. A zero might mean that the bus is shorted, there are
+// no devices, or you have already retrieved all of them.  It
+// might be a good idea to check the CRC to make sure you didn't
+// get garbage.  The order is deterministic. You will always get
+// the same devices in the same order.
+uint8_t onewire_search(uint8_t pin, uint8_t *newAddr);
+#endif
+
+#if ONEWIRE_CRC
+// Compute a Dallas Semiconductor 8 bit CRC, these are used in the
+// ROM and scratchpad registers.
+uint8_t onewire_crc8(const uint8_t *addr, uint8_t len);
+
+#if ONEWIRE_CRC16
+// Compute the 1-Wire CRC16 and compare it against the received CRC.
+// Example usage (reading a DS2408):
+//    // Put everything in a buffer so we can compute the CRC easily.
+//    uint8_t buf[13];
+//    buf[0] = 0xF0;    // Read PIO Registers
+//    buf[1] = 0x88;    // LSB address
+//    buf[2] = 0x00;    // MSB address
+//    WriteBytes(net, buf, 3);    // Write 3 cmd bytes
+//    ReadBytes(net, buf+3, 10);  // Read 6 data bytes, 2 0xFF, 2 CRC16
+//    if (!CheckCRC16(buf, 11, &buf[11])) {
+//        // Handle error.
+//    }     
+//          
+// @param input - Array of bytes to checksum.
+// @param len - How many bytes to use.
+// @param inverted_crc - The two CRC16 bytes in the received data.
+//                       This should just point into the received data,
+//                       *not* at a 16-bit integer.
+// @param crc - The crc starting value (optional)
+// @return True, iff the CRC matches.
+bool onewire_check_crc16(const uint8_t* input, uint16_t len, const uint8_t* inverted_crc, uint16_t crc);
+
+// Compute a Dallas Semiconductor 16 bit CRC.  This is required to check
+// the integrity of data received from many 1-Wire devices.  Note that the
+// CRC computed here is *not* what you'll get from the 1-Wire network,
+// for two reasons:
+//   1) The CRC is transmitted bitwise inverted.
+//   2) Depending on the endian-ness of your processor, the binary
+//      representation of the two-byte return value may have a different
+//      byte order than the two bytes you get from 1-Wire.
+// @param input - Array of bytes to checksum.
+// @param len - How many bytes to use.
+// @param crc - The crc starting value (optional)
+// @return The CRC16, as defined by Dallas Semiconductor.
+uint16_t onewire_crc16(const uint8_t* input, uint16_t len, uint16_t crc);
+#endif
+#endif
+
+#endif

app/include/driver/pwm.h

@@ -0,0 +1,46 @@
+#ifndef __PWM_H__
+#define __PWM_H__
+
+#define PWM_CHANNEL 6
+
+struct pwm_single_param {
+	uint16 gpio_set;
+	uint16 gpio_clear;
+    uint32 h_time;
+};
+
+struct pwm_param {
+    uint32 period;
+    uint16 freq;
+    uint16  duty[PWM_CHANNEL];
+};
+
+#define PWM_DEPTH 1023
+#define PWM_FREQ_MAX 1000
+
+#define PWM_1S 1000000
+
+// #define PWM_0_OUT_IO_MUX PERIPHS_IO_MUX_MTMS_U
+// #define PWM_0_OUT_IO_NUM 14
+// #define PWM_0_OUT_IO_FUNC  FUNC_GPIO14
+
+// #define PWM_1_OUT_IO_MUX PERIPHS_IO_MUX_MTDI_U
+// #define PWM_1_OUT_IO_NUM 12
+// #define PWM_1_OUT_IO_FUNC  FUNC_GPIO12
+
+// #define PWM_2_OUT_IO_MUX PERIPHS_IO_MUX_MTCK_U
+// #define PWM_2_OUT_IO_NUM 13
+// #define PWM_2_OUT_IO_FUNC  FUNC_GPIO13
+
+void pwm_init(uint16 freq, uint16 *duty);
+void pwm_start(void);
+
+void pwm_set_duty(uint16 duty, uint8 channel);
+uint16 pwm_get_duty(uint8 channel);
+void pwm_set_freq(uint16 freq, uint8 channel);
+uint16 pwm_get_freq(uint8 channel);
+bool pwm_add(uint8 channel);
+bool pwm_delete(uint8 channel);
+bool pwm_exist(uint8 channel);
+#endif
+

app/include/driver/spi.h

@@ -0,0 +1,48 @@
+#ifndef SPI_APP_H
+#define SPI_APP_H
+
+#include "spi_register.h"
+#include "ets_sys.h"
+#include "osapi.h"
+#include "uart.h"
+#include "os_type.h"
+
+/*SPI number define*/
+#define SPI 			0
+#define HSPI			1
+
+
+
+//lcd drive function
+void spi_lcd_mode_init(uint8 spi_no);
+void spi_lcd_9bit_write(uint8 spi_no,uint8 high_bit,uint8 low_8bit);
+
+//spi master init funtion
+void spi_master_init(uint8 spi_no);
+//use spi send 8bit data
+void spi_mast_byte_write(uint8 spi_no,uint8 data);
+
+//transmit data to esp8266 slave buffer,which needs 16bit transmission ,
+//first byte is master command 0x04, second byte is master data
+void spi_byte_write_espslave(uint8 spi_no,uint8 data);
+//read data from esp8266 slave buffer,which needs 16bit transmission ,
+//first byte is master command 0x06, second byte is to read slave data
+void spi_byte_read_espslave(uint8 spi_no,uint8 *data);
+
+ //esp8266 slave mode initial
+void spi_slave_init(uint8 spi_no);
+  //esp8266 slave isr handle funtion,tiggered when any transmission is finished.
+  //the function is registered in spi_slave_init.
+void spi_slave_isr_handler(void *para); 
+
+
+//hspi test function, used to test esp8266 spi slave
+void hspi_master_readwrite_repeat(void);
+
+
+void ICACHE_FLASH_ATTR
+    spi_test_init(void);
+
+
+#endif
+

app/include/driver/spi_master.h

@@ -0,0 +1,13 @@
+#ifndef __SPI_MASTER_H__
+#define __SPI_MASTER_H__
+
+#include "driver/spi_register.h"
+
+/*SPI number define*/
+#define SPI         0
+#define HSPI        1
+
+void spi_master_init(uint8 spi_no);
+void spi_master_9bit_write(uint8 spi_no, uint8 high_bit, uint8 low_8bit);
+
+#endif

app/include/driver/spi_register.h

@@ -0,0 +1,182 @@
+/*
+ *  Copyright (c) 2010 - 2011 Espressif System
+ *
+ */
+
+#ifndef SPI_REGISTER_H_INCLUDED
+#define SPI_REGISTER_H_INCLUDED
+
+#define REG_SPI_BASE(i)  (0x60000200-i*0x100)
+#define SPI_CMD(i)                            (REG_SPI_BASE(i)  + 0x0)
+#define SPI_USR (BIT(18))
+
+#define SPI_ADDR(i)                           (REG_SPI_BASE(i)  + 0x4)
+
+#define SPI_CTRL(i)                           (REG_SPI_BASE(i)  + 0x8)
+#define SPI_WR_BIT_ORDER (BIT(26))
+#define SPI_RD_BIT_ORDER (BIT(25))
+#define SPI_QIO_MODE (BIT(24))
+#define SPI_DIO_MODE (BIT(23))
+#define SPI_QOUT_MODE (BIT(20))
+#define SPI_DOUT_MODE (BIT(14))
+#define SPI_FASTRD_MODE (BIT(13))
+
+
+
+#define SPI_RD_STATUS(i)                         (REG_SPI_BASE(i)  + 0x10)
+
+#define SPI_CTRL2(i)                           (REG_SPI_BASE(i)  + 0x14)
+
+#define SPI_CS_DELAY_NUM 0x0000000F
+#define SPI_CS_DELAY_NUM_S 28
+#define SPI_CS_DELAY_MODE 0x00000003
+#define SPI_CS_DELAY_MODE_S 26
+#define SPI_MOSI_DELAY_NUM 0x00000007
+#define SPI_MOSI_DELAY_NUM_S 23
+#define SPI_MOSI_DELAY_MODE 0x00000003
+#define SPI_MOSI_DELAY_MODE_S 21
+#define SPI_MISO_DELAY_NUM 0x00000007
+#define SPI_MISO_DELAY_NUM_S 18
+#define SPI_MISO_DELAY_MODE 0x00000003
+#define SPI_MISO_DELAY_MODE_S 16
+#define SPI_CLOCK(i)                          (REG_SPI_BASE(i)  + 0x18)
+#define SPI_CLK_EQU_SYSCLK (BIT(31))
+#define SPI_CLKDIV_PRE 0x00001FFF
+#define SPI_CLKDIV_PRE_S 18
+#define SPI_CLKCNT_N 0x0000003F
+#define SPI_CLKCNT_N_S 12
+#define SPI_CLKCNT_H 0x0000003F
+#define SPI_CLKCNT_H_S 6
+#define SPI_CLKCNT_L 0x0000003F
+#define SPI_CLKCNT_L_S 0
+
+#define SPI_USER(i)                           (REG_SPI_BASE(i)  + 0x1C)
+#define SPI_USR_COMMAND (BIT(31))
+#define SPI_USR_ADDR (BIT(30))
+#define SPI_USR_DUMMY (BIT(29))
+#define SPI_USR_MISO (BIT(28))
+#define SPI_USR_MOSI (BIT(27))
+
+#define SPI_USR_MOSI_HIGHPART (BIT(25))
+#define SPI_USR_MISO_HIGHPART (BIT(24))
+
+
+#define SPI_SIO (BIT(16))
+#define SPI_FWRITE_QIO (BIT(15))
+#define SPI_FWRITE_DIO (BIT(14))
+#define SPI_FWRITE_QUAD (BIT(13))
+#define SPI_FWRITE_DUAL (BIT(12))
+#define SPI_WR_BYTE_ORDER (BIT(11))
+#define SPI_RD_BYTE_ORDER (BIT(10))
+#define SPI_CK_OUT_EDGE (BIT(7))
+#define SPI_CK_I_EDGE (BIT(6))
+#define SPI_CS_SETUP (BIT(5))
+#define SPI_CS_HOLD (BIT(4))
+#define SPI_FLASH_MODE (BIT(2))
+
+#define SPI_USER1(i)                          (REG_SPI_BASE(i) + 0x20)
+#define SPI_USR_ADDR_BITLEN 0x0000003F
+#define SPI_USR_ADDR_BITLEN_S 26
+#define SPI_USR_MOSI_BITLEN 0x000001FF
+#define SPI_USR_MOSI_BITLEN_S 17
+#define SPI_USR_MISO_BITLEN 0x000001FF
+#define SPI_USR_MISO_BITLEN_S 8
+
+#define SPI_USR_DUMMY_CYCLELEN 0x000000FF
+#define SPI_USR_DUMMY_CYCLELEN_S 0
+
+#define SPI_USER2(i)                          (REG_SPI_BASE(i)  + 0x24)
+#define SPI_USR_COMMAND_BITLEN 0x0000000F
+#define SPI_USR_COMMAND_BITLEN_S 28
+#define SPI_USR_COMMAND_VALUE 0x0000FFFF
+#define SPI_USR_COMMAND_VALUE_S 0
+
+#define SPI_WR_STATUS(i)                          (REG_SPI_BASE(i)  + 0x28)
+#define SPI_PIN(i)                            (REG_SPI_BASE(i)  + 0x2C)
+#define SPI_CS2_DIS (BIT(2))
+#define SPI_CS1_DIS (BIT(1))
+#define SPI_CS0_DIS (BIT(0))
+
+#define SPI_SLAVE(i)                          (REG_SPI_BASE(i)  + 0x30)
+#define SPI_SYNC_RESET (BIT(31))
+#define SPI_SLAVE_MODE (BIT(30))
+#define SPI_SLV_WR_RD_BUF_EN (BIT(29))
+#define SPI_SLV_WR_RD_STA_EN (BIT(28))
+#define SPI_SLV_CMD_DEFINE (BIT(27))
+#define SPI_TRANS_CNT 0x0000000F
+#define SPI_TRANS_CNT_S 23
+#define SPI_TRANS_DONE_EN (BIT(9))
+#define SPI_SLV_WR_STA_DONE_EN (BIT(8))
+#define SPI_SLV_RD_STA_DONE_EN (BIT(7))
+#define SPI_SLV_WR_BUF_DONE_EN (BIT(6))
+#define SPI_SLV_RD_BUF_DONE_EN (BIT(5))
+
+
+
+#define SLV_SPI_INT_EN   0x0000001f
+#define SLV_SPI_INT_EN_S 5
+
+#define SPI_TRANS_DONE (BIT(4))
+#define SPI_SLV_WR_STA_DONE (BIT(3))
+#define SPI_SLV_RD_STA_DONE (BIT(2))
+#define SPI_SLV_WR_BUF_DONE (BIT(1))
+#define SPI_SLV_RD_BUF_DONE (BIT(0))
+
+#define SPI_SLAVE1(i)                         (REG_SPI_BASE(i)  + 0x34)
+#define SPI_SLV_STATUS_BITLEN 0x0000001F
+#define SPI_SLV_STATUS_BITLEN_S 27
+#define SPI_SLV_BUF_BITLEN 0x000001FF
+#define SPI_SLV_BUF_BITLEN_S 16
+#define SPI_SLV_RD_ADDR_BITLEN 0x0000003F
+#define SPI_SLV_RD_ADDR_BITLEN_S 10
+#define SPI_SLV_WR_ADDR_BITLEN 0x0000003F
+#define SPI_SLV_WR_ADDR_BITLEN_S 4
+
+#define SPI_SLV_WRSTA_DUMMY_EN (BIT(3))
+#define SPI_SLV_RDSTA_DUMMY_EN (BIT(2))
+#define SPI_SLV_WRBUF_DUMMY_EN (BIT(1))
+#define SPI_SLV_RDBUF_DUMMY_EN (BIT(0))
+
+
+
+#define SPI_SLAVE2(i)  (REG_SPI_BASE(i)  + 0x38)
+#define SPI_SLV_WRBUF_DUMMY_CYCLELEN  0X000000FF
+#define SPI_SLV_WRBUF_DUMMY_CYCLELEN_S 24
+#define SPI_SLV_RDBUF_DUMMY_CYCLELEN  0X000000FF
+#define SPI_SLV_RDBUF_DUMMY_CYCLELEN_S 16
+#define SPI_SLV_WRSTR_DUMMY_CYCLELEN  0X000000FF
+#define SPI_SLV_WRSTR_DUMMY_CYCLELEN_S  8
+#define SPI_SLV_RDSTR_DUMMY_CYCLELEN  0x000000FF
+#define SPI_SLV_RDSTR_DUMMY_CYCLELEN_S 0
+
+#define SPI_SLAVE3(i)                         (REG_SPI_BASE(i)  + 0x3C)
+#define SPI_SLV_WRSTA_CMD_VALUE 0x000000FF
+#define SPI_SLV_WRSTA_CMD_VALUE_S 24
+#define SPI_SLV_RDSTA_CMD_VALUE 0x000000FF
+#define SPI_SLV_RDSTA_CMD_VALUE_S 16
+#define SPI_SLV_WRBUF_CMD_VALUE 0x000000FF
+#define SPI_SLV_WRBUF_CMD_VALUE_S 8
+#define SPI_SLV_RDBUF_CMD_VALUE 0x000000FF
+#define SPI_SLV_RDBUF_CMD_VALUE_S 0
+
+#define SPI_W0(i) 							(REG_SPI_BASE(i) +0x40)
+#define SPI_W1(i) 							(REG_SPI_BASE(i) +0x44)
+#define SPI_W2(i) 							(REG_SPI_BASE(i) +0x48)
+#define SPI_W3(i) 							(REG_SPI_BASE(i) +0x4C)
+#define SPI_W4(i) 							(REG_SPI_BASE(i) +0x50)
+#define SPI_W5(i) 							(REG_SPI_BASE(i) +0x54)
+#define SPI_W6(i) 							(REG_SPI_BASE(i) +0x58)
+#define SPI_W7(i) 							(REG_SPI_BASE(i) +0x5C)
+#define SPI_W8(i) 							(REG_SPI_BASE(i) +0x60)
+#define SPI_W9(i) 							(REG_SPI_BASE(i) +0x64)
+#define SPI_W10(i) 							(REG_SPI_BASE(i) +0x68)
+#define SPI_W11(i) 							(REG_SPI_BASE(i) +0x6C)
+#define SPI_W12(i) 							(REG_SPI_BASE(i) +0x70)
+#define SPI_W13(i) 							(REG_SPI_BASE(i) +0x74)
+#define SPI_W14(i) 							(REG_SPI_BASE(i) +0x78)
+#define SPI_W15(i) 							(REG_SPI_BASE(i) +0x7C)
+
+#define SPI_EXT3(i)                           (REG_SPI_BASE(i)  + 0xFC)
+#define SPI_INT_HOLD_ENA 0x00000003
+#define SPI_INT_HOLD_ENA_S 0
+#endif // SPI_REGISTER_H_INCLUDED

app/include/driver/uart.h

@@ -0,0 +1,102 @@
+#ifndef UART_APP_H
+#define UART_APP_H
+
+#include "uart_register.h"
+#include "eagle_soc.h"
+#include "c_types.h"
+
+#define RX_BUFF_SIZE    0x100
+#define TX_BUFF_SIZE    100
+
+typedef enum {
+    FIVE_BITS = 0x0,
+    SIX_BITS = 0x1,
+    SEVEN_BITS = 0x2,
+    EIGHT_BITS = 0x3
+} UartBitsNum4Char;
+
+typedef enum {
+    ONE_STOP_BIT             = 0,
+    ONE_HALF_STOP_BIT        = BIT2,
+    TWO_STOP_BIT             = BIT2
+} UartStopBitsNum;
+
+typedef enum {
+    NONE_BITS = 0,
+    ODD_BITS   = 0,
+    EVEN_BITS = BIT4
+} UartParityMode;
+
+typedef enum {
+    STICK_PARITY_DIS   = 0,
+    STICK_PARITY_EN    = BIT3 | BIT5
+} UartExistParity;
+
+typedef enum {
+    BIT_RATE_9600     = 9600,
+    BIT_RATE_19200   = 19200,
+    BIT_RATE_38400   = 38400,
+    BIT_RATE_57600   = 57600,
+    BIT_RATE_74880   = 74880,
+    BIT_RATE_115200 = 115200,
+    BIT_RATE_230400 = 230400,
+    BIT_RATE_460800 = 460800,
+    BIT_RATE_921600 = 921600
+} UartBautRate;
+
+typedef enum {
+    NONE_CTRL,
+    HARDWARE_CTRL,
+    XON_XOFF_CTRL
+} UartFlowCtrl;
+
+typedef enum {
+    EMPTY,
+    UNDER_WRITE,
+    WRITE_OVER
+} RcvMsgBuffState;
+
+typedef struct {
+    uint32     RcvBuffSize;
+    uint8     *pRcvMsgBuff;
+    uint8     *pWritePos;
+    uint8     *pReadPos;
+    uint8      TrigLvl; //JLU: may need to pad
+    RcvMsgBuffState  BuffState;
+} RcvMsgBuff;
+
+typedef struct {
+    uint32   TrxBuffSize;
+    uint8   *pTrxBuff;
+} TrxMsgBuff;
+
+typedef enum {
+    BAUD_RATE_DET,
+    WAIT_SYNC_FRM,
+    SRCH_MSG_HEAD,
+    RCV_MSG_BODY,
+    RCV_ESC_CHAR,
+} RcvMsgState;
+
+typedef struct {
+    UartBautRate 	     baut_rate;
+    UartBitsNum4Char  data_bits;
+    UartExistParity      exist_parity;
+    UartParityMode 	    parity;    // chip size in byte
+    UartStopBitsNum   stop_bits;
+    UartFlowCtrl         flow_ctrl;
+    RcvMsgBuff          rcv_buff;
+    TrxMsgBuff           trx_buff;
+    RcvMsgState        rcv_state;
+    int                      received;
+    int                      buff_uart_no;  //indicate which uart use tx/rx buffer
+} UartDevice;
+
+void uart_init(UartBautRate uart0_br, UartBautRate uart1_br);
+void uart0_sendStr(const char *str);
+void uart0_putc(const char c);
+void uart0_tx_buffer(uint8 *buf, uint16 len);
+void uart_setup(uint8 uart_no);
+STATUS uart_tx_one_char(uint8 uart, uint8 TxChar);
+#endif
+

app/include/driver/uart_register.h

@@ -0,0 +1,128 @@
+//Generated at 2012-07-03 18:44:06
+/*
+ *  Copyright (c) 2010 - 2011 Espressif System
+ *
+ */
+
+#ifndef UART_REGISTER_H_INCLUDED
+#define UART_REGISTER_H_INCLUDED
+#define REG_UART_BASE( i )  (0x60000000+(i)*0xf00)
+//version value:32'h062000
+
+#define UART_FIFO( i )                          (REG_UART_BASE( i ) + 0x0)
+#define UART_RXFIFO_RD_BYTE 0x000000FF
+#define UART_RXFIFO_RD_BYTE_S 0
+
+#define UART_INT_RAW( i )                       (REG_UART_BASE( i ) + 0x4)
+#define UART_RXFIFO_TOUT_INT_RAW (BIT(8))
+#define UART_BRK_DET_INT_RAW (BIT(7))
+#define UART_CTS_CHG_INT_RAW (BIT(6))
+#define UART_DSR_CHG_INT_RAW (BIT(5))
+#define UART_RXFIFO_OVF_INT_RAW (BIT(4))
+#define UART_FRM_ERR_INT_RAW (BIT(3))
+#define UART_PARITY_ERR_INT_RAW (BIT(2))
+#define UART_TXFIFO_EMPTY_INT_RAW (BIT(1))
+#define UART_RXFIFO_FULL_INT_RAW (BIT(0))
+
+#define UART_INT_ST( i )                        (REG_UART_BASE( i ) + 0x8)
+#define UART_RXFIFO_TOUT_INT_ST (BIT(8))
+#define UART_BRK_DET_INT_ST (BIT(7))
+#define UART_CTS_CHG_INT_ST (BIT(6))
+#define UART_DSR_CHG_INT_ST (BIT(5))
+#define UART_RXFIFO_OVF_INT_ST (BIT(4))
+#define UART_FRM_ERR_INT_ST (BIT(3))
+#define UART_PARITY_ERR_INT_ST (BIT(2))
+#define UART_TXFIFO_EMPTY_INT_ST (BIT(1))
+#define UART_RXFIFO_FULL_INT_ST (BIT(0))
+
+#define UART_INT_ENA( i )                       (REG_UART_BASE( i ) + 0xC)
+#define UART_RXFIFO_TOUT_INT_ENA (BIT(8))
+#define UART_BRK_DET_INT_ENA (BIT(7))
+#define UART_CTS_CHG_INT_ENA (BIT(6))
+#define UART_DSR_CHG_INT_ENA (BIT(5))
+#define UART_RXFIFO_OVF_INT_ENA (BIT(4))
+#define UART_FRM_ERR_INT_ENA (BIT(3))
+#define UART_PARITY_ERR_INT_ENA (BIT(2))
+#define UART_TXFIFO_EMPTY_INT_ENA (BIT(1))
+#define UART_RXFIFO_FULL_INT_ENA (BIT(0))
+
+#define UART_INT_CLR( i )                       (REG_UART_BASE( i ) + 0x10)
+#define UART_RXFIFO_TOUT_INT_CLR (BIT(8))
+#define UART_BRK_DET_INT_CLR (BIT(7))
+#define UART_CTS_CHG_INT_CLR (BIT(6))
+#define UART_DSR_CHG_INT_CLR (BIT(5))
+#define UART_RXFIFO_OVF_INT_CLR (BIT(4))
+#define UART_FRM_ERR_INT_CLR (BIT(3))
+#define UART_PARITY_ERR_INT_CLR (BIT(2))
+#define UART_TXFIFO_EMPTY_INT_CLR (BIT(1))
+#define UART_RXFIFO_FULL_INT_CLR (BIT(0))
+
+#define UART_CLKDIV( i )                        (REG_UART_BASE( i ) + 0x14)
+#define UART_CLKDIV_CNT 0x000FFFFF
+#define UART_CLKDIV_S 0
+
+#define UART_AUTOBAUD( i )                      (REG_UART_BASE( i ) + 0x18)
+#define UART_GLITCH_FILT 0x000000FF
+#define UART_GLITCH_FILT_S 8
+#define UART_AUTOBAUD_EN (BIT(0))
+
+#define UART_STATUS( i )                        (REG_UART_BASE( i ) + 0x1C)
+#define UART_TXD (BIT(31))
+#define UART_RTSN (BIT(30))
+#define UART_DTRN (BIT(29))
+#define UART_TXFIFO_CNT 0x000000FF
+#define UART_TXFIFO_CNT_S 16
+#define UART_RXD (BIT(15))
+#define UART_CTSN (BIT(14))
+#define UART_DSRN (BIT(13))
+#define UART_RXFIFO_CNT 0x000000FF
+#define UART_RXFIFO_CNT_S 0
+
+#define UART_CONF0( i )                         (REG_UART_BASE( i ) + 0x20)
+#define UART_TXFIFO_RST (BIT(18))
+#define UART_RXFIFO_RST (BIT(17))
+#define UART_IRDA_EN (BIT(16))
+#define UART_TX_FLOW_EN (BIT(15))
+#define UART_LOOPBACK (BIT(14))
+#define UART_IRDA_RX_INV (BIT(13))
+#define UART_IRDA_TX_INV (BIT(12))
+#define UART_IRDA_WCTL (BIT(11))
+#define UART_IRDA_TX_EN (BIT(10))
+#define UART_IRDA_DPLX (BIT(9))
+#define UART_TXD_BRK (BIT(8))
+#define UART_SW_DTR (BIT(7))
+#define UART_SW_RTS (BIT(6))
+#define UART_STOP_BIT_NUM 0x00000003
+#define UART_STOP_BIT_NUM_S 4
+#define UART_BIT_NUM 0x00000003
+#define UART_BIT_NUM_S 2
+#define UART_PARITY_EN (BIT(1))
+#define UART_PARITY (BIT(0))
+
+#define UART_CONF1( i )                         (REG_UART_BASE( i ) + 0x24)
+#define UART_RX_TOUT_EN (BIT(31))
+#define UART_RX_TOUT_THRHD 0x0000007F
+#define UART_RX_TOUT_THRHD_S 24
+#define UART_RX_FLOW_EN (BIT(23))
+#define UART_RX_FLOW_THRHD 0x0000007F
+#define UART_RX_FLOW_THRHD_S 16
+#define UART_TXFIFO_EMPTY_THRHD 0x0000007F
+#define UART_TXFIFO_EMPTY_THRHD_S 8
+#define UART_RXFIFO_FULL_THRHD 0x0000007F
+#define UART_RXFIFO_FULL_THRHD_S 0
+
+#define UART_LOWPULSE( i )                      (REG_UART_BASE( i ) + 0x28)
+#define UART_LOWPULSE_MIN_CNT         0x000FFFFF
+#define UART_LOWPULSE_MIN_CNT_S     0
+
+#define UART_HIGHPULSE( i )                     (REG_UART_BASE( i ) + 0x2C)
+#define UART_HIGHPULSE_MIN_CNT         0x000FFFFF
+#define UART_HIGHPULSE_MIN_CNT_S     0
+
+#define UART_PULSE_NUM( i )                     (REG_UART_BASE( i ) + 0x30)
+#define UART_PULSE_NUM_CNT                  0x0003FF
+#define UART_PULSE_NUM_CNT_S               0
+
+#define UART_DATE( i )                          (REG_UART_BASE( i ) + 0x78)
+#define UART_ID( i )                            (REG_UART_BASE( i ) + 0x7C)
+#endif // UART_REGISTER_H_INCLUDED

app/include/lwip/api.h

@@ -0,0 +1,284 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_API_H__
+#define __LWIP_API_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_NETCONN /* don't build if not configured for use in lwipopts.h */
+
+#include <stddef.h> /* for size_t */
+
+#include "lwip/netbuf.h"
+#include "lwip/sys.h"
+#include "lwip/ip_addr.h"
+#include "lwip/err.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Throughout this file, IP addresses and port numbers are expected to be in
+ * the same byte order as in the corresponding pcb.
+ */
+
+/* Flags for netconn_write (u8_t) */
+#define NETCONN_NOFLAG    0x00
+#define NETCONN_NOCOPY    0x00 /* Only for source code compatibility */
+#define NETCONN_COPY      0x01
+#define NETCONN_MORE      0x02
+#define NETCONN_DONTBLOCK 0x04
+
+/* Flags for struct netconn.flags (u8_t) */
+/** TCP: when data passed to netconn_write doesn't fit into the send buffer,
+    this temporarily stores whether to wake up the original application task
+    if data couldn't be sent in the first try. */
+#define NETCONN_FLAG_WRITE_DELAYED            0x01
+/** Should this netconn avoid blocking? */
+#define NETCONN_FLAG_NON_BLOCKING             0x02
+/** Was the last connect action a non-blocking one? */
+#define NETCONN_FLAG_IN_NONBLOCKING_CONNECT   0x04
+/** If this is set, a TCP netconn must call netconn_recved() to update
+    the TCP receive window (done automatically if not set). */
+#define NETCONN_FLAG_NO_AUTO_RECVED           0x08
+/** If a nonblocking write has been rejected before, poll_tcp needs to
+    check if the netconn is writable again */
+#define NETCONN_FLAG_CHECK_WRITESPACE         0x10
+
+
+/* Helpers to process several netconn_types by the same code */
+#define NETCONNTYPE_GROUP(t)    (t&0xF0)
+#define NETCONNTYPE_DATAGRAM(t) (t&0xE0)
+
+/** Protocol family and type of the netconn */
+enum netconn_type {
+  NETCONN_INVALID    = 0,
+  /* NETCONN_TCP Group */
+  NETCONN_TCP        = 0x10,
+  /* NETCONN_UDP Group */
+  NETCONN_UDP        = 0x20,
+  NETCONN_UDPLITE    = 0x21,
+  NETCONN_UDPNOCHKSUM= 0x22,
+  /* NETCONN_RAW Group */
+  NETCONN_RAW        = 0x40
+};
+
+/** Current state of the netconn. Non-TCP netconns are always
+ * in state NETCONN_NONE! */
+enum netconn_state {
+  NETCONN_NONE,
+  NETCONN_WRITE,
+  NETCONN_LISTEN,
+  NETCONN_CONNECT,
+  NETCONN_CLOSE
+};
+
+/** Use to inform the callback function about changes */
+enum netconn_evt {
+  NETCONN_EVT_RCVPLUS,
+  NETCONN_EVT_RCVMINUS,
+  NETCONN_EVT_SENDPLUS,
+  NETCONN_EVT_SENDMINUS,
+  NETCONN_EVT_ERROR
+};
+
+#if LWIP_IGMP
+/** Used for netconn_join_leave_group() */
+enum netconn_igmp {
+  NETCONN_JOIN,
+  NETCONN_LEAVE
+};
+#endif /* LWIP_IGMP */
+
+/* forward-declare some structs to avoid to include their headers */
+struct ip_pcb;
+struct tcp_pcb;
+struct udp_pcb;
+struct raw_pcb;
+struct netconn;
+struct api_msg_msg;
+
+/** A callback prototype to inform about events for a netconn */
+typedef void (* netconn_callback)(struct netconn *, enum netconn_evt, u16_t len);
+
+/** A netconn descriptor */
+struct netconn {
+  /** type of the netconn (TCP, UDP or RAW) */
+  enum netconn_type type;
+  /** current state of the netconn */
+  enum netconn_state state;
+  /** the lwIP internal protocol control block */
+  union {
+    struct ip_pcb  *ip;
+    struct tcp_pcb *tcp;
+    struct udp_pcb *udp;
+    struct raw_pcb *raw;
+  } pcb;
+  /** the last error this netconn had */
+  err_t last_err;
+  /** sem that is used to synchroneously execute functions in the core context */
+  sys_sem_t op_completed;
+  /** mbox where received packets are stored until they are fetched
+      by the netconn application thread (can grow quite big) */
+  sys_mbox_t recvmbox;
+#if LWIP_TCP
+  /** mbox where new connections are stored until processed
+      by the application thread */
+  sys_mbox_t acceptmbox;
+#endif /* LWIP_TCP */
+  /** only used for socket layer */
+#if LWIP_SOCKET
+  int socket;
+#endif /* LWIP_SOCKET */
+#if LWIP_SO_RCVTIMEO
+  /** timeout to wait for new data to be received
+      (or connections to arrive for listening netconns) */
+  int recv_timeout;
+#endif /* LWIP_SO_RCVTIMEO */
+#if LWIP_SO_RCVBUF
+  /** maximum amount of bytes queued in recvmbox
+      not used for TCP: adjust TCP_WND instead! */
+  int recv_bufsize;
+  /** number of bytes currently in recvmbox to be received,
+      tested against recv_bufsize to limit bytes on recvmbox
+      for UDP and RAW, used for FIONREAD */
+  s16_t recv_avail;
+#endif /* LWIP_SO_RCVBUF */
+  /** flags holding more netconn-internal state, see NETCONN_FLAG_* defines */
+  u8_t flags;
+#if LWIP_TCP
+  /** TCP: when data passed to netconn_write doesn't fit into the send buffer,
+      this temporarily stores how much is already sent. */
+  size_t write_offset;
+  /** TCP: when data passed to netconn_write doesn't fit into the send buffer,
+      this temporarily stores the message.
+      Also used during connect and close. */
+  struct api_msg_msg *current_msg;
+#endif /* LWIP_TCP */
+  /** A callback function that is informed about events for this netconn */
+  netconn_callback callback;
+};
+
+/** Register an Network connection event */
+#define API_EVENT(c,e,l) if (c->callback) {         \
+                           (*c->callback)(c, e, l); \
+                         }
+
+/** Set conn->last_err to err but don't overwrite fatal errors */
+#define NETCONN_SET_SAFE_ERR(conn, err) do { \
+  SYS_ARCH_DECL_PROTECT(lev); \
+  SYS_ARCH_PROTECT(lev); \
+  if (!ERR_IS_FATAL((conn)->last_err)) { \
+    (conn)->last_err = err; \
+  } \
+  SYS_ARCH_UNPROTECT(lev); \
+} while(0);
+
+/* Network connection functions: */
+#define netconn_new(t)                  netconn_new_with_proto_and_callback(t, 0, NULL)
+#define netconn_new_with_callback(t, c) netconn_new_with_proto_and_callback(t, 0, c)
+struct
+netconn *netconn_new_with_proto_and_callback(enum netconn_type t, u8_t proto,
+                                             netconn_callback callback);
+err_t   netconn_delete(struct netconn *conn);
+/** Get the type of a netconn (as enum netconn_type). */
+#define netconn_type(conn) (conn->type)
+
+err_t   netconn_getaddr(struct netconn *conn, ip_addr_t *addr,
+                        u16_t *port, u8_t local);
+#define netconn_peer(c,i,p) netconn_getaddr(c,i,p,0)
+#define netconn_addr(c,i,p) netconn_getaddr(c,i,p,1)
+
+err_t   netconn_bind(struct netconn *conn, ip_addr_t *addr, u16_t port);
+err_t   netconn_connect(struct netconn *conn, ip_addr_t *addr, u16_t port);
+err_t   netconn_disconnect (struct netconn *conn);
+err_t   netconn_listen_with_backlog(struct netconn *conn, u8_t backlog);
+#define netconn_listen(conn) netconn_listen_with_backlog(conn, TCP_DEFAULT_LISTEN_BACKLOG)
+err_t   netconn_accept(struct netconn *conn, struct netconn **new_conn);
+err_t   netconn_recv(struct netconn *conn, struct netbuf **new_buf);
+err_t   netconn_recv_tcp_pbuf(struct netconn *conn, struct pbuf **new_buf);
+void    netconn_recved(struct netconn *conn, u32_t length);
+err_t   netconn_sendto(struct netconn *conn, struct netbuf *buf,
+                       ip_addr_t *addr, u16_t port);
+err_t   netconn_send(struct netconn *conn, struct netbuf *buf);
+err_t   netconn_write(struct netconn *conn, const void *dataptr, size_t size,
+                      u8_t apiflags);
+err_t   netconn_close(struct netconn *conn);
+err_t   netconn_shutdown(struct netconn *conn, u8_t shut_rx, u8_t shut_tx);
+
+#if LWIP_IGMP
+err_t   netconn_join_leave_group(struct netconn *conn, ip_addr_t *multiaddr,
+                                 ip_addr_t *netif_addr, enum netconn_igmp join_or_leave);
+#endif /* LWIP_IGMP */
+#if LWIP_DNS
+err_t   netconn_gethostbyname(const char *name, ip_addr_t *addr);
+#endif /* LWIP_DNS */
+
+#define netconn_err(conn)               ((conn)->last_err)
+#define netconn_recv_bufsize(conn)      ((conn)->recv_bufsize)
+
+/** Set the blocking status of netconn calls (@todo: write/send is missing) */
+#define netconn_set_nonblocking(conn, val)  do { if(val) { \
+  (conn)->flags |= NETCONN_FLAG_NON_BLOCKING; \
+} else { \
+  (conn)->flags &= ~ NETCONN_FLAG_NON_BLOCKING; }} while(0)
+/** Get the blocking status of netconn calls (@todo: write/send is missing) */
+#define netconn_is_nonblocking(conn)        (((conn)->flags & NETCONN_FLAG_NON_BLOCKING) != 0)
+
+/** TCP: Set the no-auto-recved status of netconn calls (see NETCONN_FLAG_NO_AUTO_RECVED) */
+#define netconn_set_noautorecved(conn, val)  do { if(val) { \
+  (conn)->flags |= NETCONN_FLAG_NO_AUTO_RECVED; \
+} else { \
+  (conn)->flags &= ~ NETCONN_FLAG_NO_AUTO_RECVED; }} while(0)
+/** TCP: Get the no-auto-recved status of netconn calls (see NETCONN_FLAG_NO_AUTO_RECVED) */
+#define netconn_get_noautorecved(conn)        (((conn)->flags & NETCONN_FLAG_NO_AUTO_RECVED) != 0)
+
+#if LWIP_SO_RCVTIMEO
+/** Set the receive timeout in milliseconds */
+#define netconn_set_recvtimeout(conn, timeout)      ((conn)->recv_timeout = (timeout))
+/** Get the receive timeout in milliseconds */
+#define netconn_get_recvtimeout(conn)               ((conn)->recv_timeout)
+#endif /* LWIP_SO_RCVTIMEO */
+#if LWIP_SO_RCVBUF
+/** Set the receive buffer in bytes */
+#define netconn_set_recvbufsize(conn, recvbufsize)  ((conn)->recv_bufsize = (recvbufsize))
+/** Get the receive buffer in bytes */
+#define netconn_get_recvbufsize(conn)               ((conn)->recv_bufsize)
+#endif /* LWIP_SO_RCVBUF*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_NETCONN */
+
+#endif /* __LWIP_API_H__ */

app/include/lwip/api_msg.h

@@ -0,0 +1,174 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_API_MSG_H__
+#define __LWIP_API_MSG_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_NETCONN /* don't build if not configured for use in lwipopts.h */
+
+#include <stddef.h> /* for size_t */
+
+#include "lwip/ip_addr.h"
+#include "lwip/err.h"
+#include "lwip/sys.h"
+#include "lwip/igmp.h"
+#include "lwip/api.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* For the netconn API, these values are use as a bitmask! */
+#define NETCONN_SHUT_RD   1
+#define NETCONN_SHUT_WR   2
+#define NETCONN_SHUT_RDWR (NETCONN_SHUT_RD | NETCONN_SHUT_WR)
+
+/* IP addresses and port numbers are expected to be in
+ * the same byte order as in the corresponding pcb.
+ */
+/** This struct includes everything that is necessary to execute a function
+    for a netconn in another thread context (mainly used to process netconns
+    in the tcpip_thread context to be thread safe). */
+struct api_msg_msg {
+  /** The netconn which to process - always needed: it includes the semaphore
+      which is used to block the application thread until the function finished. */
+  struct netconn *conn;
+  /** The return value of the function executed in tcpip_thread. */
+  err_t err;
+  /** Depending on the executed function, one of these union members is used */
+  union {
+    /** used for do_send */
+    struct netbuf *b;
+    /** used for do_newconn */
+    struct {
+      u8_t proto;
+    } n;
+    /** used for do_bind and do_connect */
+    struct {
+      ip_addr_t *ipaddr;
+      u16_t port;
+    } bc;
+    /** used for do_getaddr */
+    struct {
+      ip_addr_t *ipaddr;
+      u16_t *port;
+      u8_t local;
+    } ad;
+    /** used for do_write */
+    struct {
+      const void *dataptr;
+      size_t len;
+      u8_t apiflags;
+    } w;
+    /** used for do_recv */
+    struct {
+      u32_t len;
+    } r;
+    /** used for do_close (/shutdown) */
+    struct {
+      u8_t shut;
+    } sd;
+#if LWIP_IGMP
+    /** used for do_join_leave_group */
+    struct {
+      ip_addr_t *multiaddr;
+      ip_addr_t *netif_addr;
+      enum netconn_igmp join_or_leave;
+    } jl;
+#endif /* LWIP_IGMP */
+#if TCP_LISTEN_BACKLOG
+    struct {
+      u8_t backlog;
+    } lb;
+#endif /* TCP_LISTEN_BACKLOG */
+  } msg;
+};
+
+/** This struct contains a function to execute in another thread context and
+    a struct api_msg_msg that serves as an argument for this function.
+    This is passed to tcpip_apimsg to execute functions in tcpip_thread context. */
+struct api_msg {
+  /** function to execute in tcpip_thread context */
+  void (* function)(struct api_msg_msg *msg);
+  /** arguments for this function */
+  struct api_msg_msg msg;
+};
+
+#if LWIP_DNS
+/** As do_gethostbyname requires more arguments but doesn't require a netconn,
+    it has its own struct (to avoid struct api_msg getting bigger than necessary).
+    do_gethostbyname must be called using tcpip_callback instead of tcpip_apimsg
+    (see netconn_gethostbyname). */
+struct dns_api_msg {
+  /** Hostname to query or dotted IP address string */
+  const char *name;
+  /** Rhe resolved address is stored here */
+  ip_addr_t *addr;
+  /** This semaphore is posted when the name is resolved, the application thread
+      should wait on it. */
+  sys_sem_t *sem;
+  /** Errors are given back here */
+  err_t *err;
+};
+#endif /* LWIP_DNS */
+
+void do_newconn         ( struct api_msg_msg *msg);
+void do_delconn         ( struct api_msg_msg *msg);
+void do_bind            ( struct api_msg_msg *msg);
+void do_connect         ( struct api_msg_msg *msg);
+void do_disconnect      ( struct api_msg_msg *msg);
+void do_listen          ( struct api_msg_msg *msg);
+void do_send            ( struct api_msg_msg *msg);
+void do_recv            ( struct api_msg_msg *msg);
+void do_write           ( struct api_msg_msg *msg);
+void do_getaddr         ( struct api_msg_msg *msg);
+void do_close           ( struct api_msg_msg *msg);
+void do_shutdown        ( struct api_msg_msg *msg);
+#if LWIP_IGMP
+void do_join_leave_group( struct api_msg_msg *msg);
+#endif /* LWIP_IGMP */
+
+#if LWIP_DNS
+void do_gethostbyname(void *arg);
+#endif /* LWIP_DNS */
+
+struct netconn* netconn_alloc(enum netconn_type t, netconn_callback callback);
+void netconn_free(struct netconn *conn);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_NETCONN */
+
+#endif /* __LWIP_API_MSG_H__ */

app/include/lwip/app/dhcpserver.h

@@ -0,0 +1,89 @@
+#ifndef __DHCPS_H__
+#define __DHCPS_H__
+
+typedef struct dhcps_state{
+        sint16_t state;
+} dhcps_state;
+
+// <20><><EFBFBD><EFBFBD>dhcpclient<6E>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>DHCP msg<73>ṹ<EFBFBD><E1B9B9>
+typedef struct dhcps_msg {
+        uint8_t op, htype, hlen, hops;
+        uint8_t xid[4];
+        uint16_t secs, flags;
+        uint8_t ciaddr[4];
+        uint8_t yiaddr[4];
+        uint8_t siaddr[4];
+        uint8_t giaddr[4];
+        uint8_t chaddr[16];
+        uint8_t sname[64];
+        uint8_t file[128];
+        uint8_t options[312];
+}dhcps_msg;
+
+#ifndef LWIP_OPEN_SRC
+struct dhcps_lease {
+	uint32 start_ip;
+	uint32 end_ip;
+};
+#endif
+
+struct dhcps_pool{
+	struct ip_addr ip;
+	uint8 mac[6];
+	uint32 lease_timer;
+};
+
+typedef struct _list_node{
+	void *pnode;
+	struct _list_node *pnext;
+}list_node;
+
+#define DHCPS_LEASE_TIMER 0x05A0
+#define DHCPS_MAX_LEASE 0x64
+#define BOOTP_BROADCAST 0x8000
+
+#define DHCP_REQUEST        1
+#define DHCP_REPLY          2
+#define DHCP_HTYPE_ETHERNET 1
+#define DHCP_HLEN_ETHERNET  6
+#define DHCP_MSG_LEN      236
+
+#define DHCPS_SERVER_PORT  67
+#define DHCPS_CLIENT_PORT  68
+
+#define DHCPDISCOVER  1
+#define DHCPOFFER     2
+#define DHCPREQUEST   3
+#define DHCPDECLINE   4
+#define DHCPACK       5
+#define DHCPNAK       6
+#define DHCPRELEASE   7
+
+#define DHCP_OPTION_SUBNET_MASK   1
+#define DHCP_OPTION_ROUTER        3
+#define DHCP_OPTION_DNS_SERVER    6
+#define DHCP_OPTION_REQ_IPADDR   50
+#define DHCP_OPTION_LEASE_TIME   51
+#define DHCP_OPTION_MSG_TYPE     53
+#define DHCP_OPTION_SERVER_ID    54
+#define DHCP_OPTION_INTERFACE_MTU 26
+#define DHCP_OPTION_PERFORM_ROUTER_DISCOVERY 31
+#define DHCP_OPTION_BROADCAST_ADDRESS 28
+#define DHCP_OPTION_REQ_LIST     55
+#define DHCP_OPTION_END         255
+
+//#define USE_CLASS_B_NET 1
+#define DHCPS_DEBUG          0
+
+
+#define DHCPS_STATE_OFFER 1
+#define DHCPS_STATE_DECLINE 2
+#define DHCPS_STATE_ACK 3
+#define DHCPS_STATE_NAK 4
+#define DHCPS_STATE_IDLE 5
+
+void dhcps_start(struct ip_info *info);
+void dhcps_stop(void);
+
+#endif
+

app/include/lwip/app/espconn.h

@@ -0,0 +1,398 @@
+#ifndef __ESPCONN_H__
+#define __ESPCONN_H__
+
+#include "lwip/dns.h"
+#include "os_type.h"
+
+#if 0
+#define espconn_printf(fmt, args...) os_printf(fmt,## args)
+#else 
+#define espconn_printf(fmt, args...)
+#endif
+
+
+typedef void *espconn_handle;
+typedef void (* espconn_connect_callback)(void *arg);
+typedef void (* espconn_reconnect_callback)(void *arg, sint8 err);
+
+/* Definitions for error constants. */
+
+#define ESPCONN_OK          0    /* No error, everything OK. */
+#define ESPCONN_MEM        -1    /* Out of memory error.     */
+#define ESPCONN_TIMEOUT    -3    /* Timeout.                 */
+#define ESPCONN_RTE        -4    /* Routing problem.         */
+#define ESPCONN_INPROGRESS  -5    /* Operation in progress    */
+
+#define ESPCONN_ABRT       -8    /* Connection aborted.      */
+#define ESPCONN_RST        -9    /* Connection reset.        */
+#define ESPCONN_CLSD       -10   /* Connection closed.       */
+#define ESPCONN_CONN       -11   /* Not connected.           */
+
+#define ESPCONN_ARG        -12   /* Illegal argument.        */
+#define ESPCONN_ISCONN     -15   /* Already connected.       */
+
+#define ESPCONN_SSL			0x01
+#define ESPCONN_NORM		0x00
+
+#define ESPCONN_STA			0x01
+#define ESPCONN_AP			0x02
+#define ESPCONN_AP_STA		0x03
+
+#define STA_NETIF      0x00
+#define AP_NETIF       0x01
+
+/** Protocol family and type of the espconn */
+enum espconn_type {
+    ESPCONN_INVALID    = 0,
+    /* ESPCONN_TCP Group */
+    ESPCONN_TCP        = 0x10,
+    /* ESPCONN_UDP Group */
+    ESPCONN_UDP        = 0x20,
+};
+
+/** Current state of the espconn. Non-TCP espconn are always in state ESPCONN_NONE! */
+enum espconn_state {
+    ESPCONN_NONE,
+    ESPCONN_WAIT,
+    ESPCONN_LISTEN,
+    ESPCONN_CONNECT,
+    ESPCONN_WRITE,
+    ESPCONN_READ,
+    ESPCONN_CLOSE
+};
+
+typedef struct _esp_tcp {
+    int remote_port;
+    int local_port;
+    uint8 local_ip[4];
+    uint8 remote_ip[4];
+	espconn_connect_callback connect_callback;
+	espconn_reconnect_callback reconnect_callback;
+	espconn_connect_callback disconnect_callback;
+} esp_tcp;
+
+typedef struct _esp_udp {
+    int remote_port;
+    int local_port;
+    uint8 local_ip[4];
+	uint8 remote_ip[4];
+} esp_udp;
+
+typedef struct _remot_info{
+	enum espconn_state state;
+	int remote_port;
+	uint8 remote_ip[4];
+}remot_info;
+
+/** A callback prototype to inform about events for a espconn */
+typedef void (* espconn_recv_callback)(void *arg, char *pdata, unsigned short len);
+typedef void (* espconn_sent_callback)(void *arg);
+
+/** A espconn descriptor */
+struct espconn {
+    /** type of the espconn (TCP, UDP) */
+    enum espconn_type type;
+    /** current state of the espconn */
+    enum espconn_state state;
+    union {
+        esp_tcp *tcp;
+        esp_udp *udp;
+    } proto;
+    /** A callback function that is informed about events for this espconn */
+    espconn_recv_callback recv_callback;
+	espconn_sent_callback sent_callback;
+	uint8 link_cnt;
+	void *reverse;
+};
+
+enum espconn_option{
+	ESPCONN_REUSEADDR = 1,
+	ESPCONN_END
+};
+
+typedef struct _comon_pkt{
+	void *pcb;
+	int remote_port;
+	uint8 remote_ip[4];
+	uint8 *ptrbuf;
+	uint16 cntr;
+	uint16 write_len;
+	uint16 write_total;
+	sint8  err;
+	uint32 timeout;
+	uint32 recv_check;
+	enum espconn_option espconn_opt;
+	os_timer_t ptimer;
+}comon_pkt;
+
+typedef struct _espconn_msg{
+	struct espconn *pespconn;
+	comon_pkt pcommon;
+	uint8 count_opt;
+	void *preverse;
+	void *pssl;
+	struct _espconn_msg *pnext;
+}espconn_msg;
+
+/******************************************************************************
+ * FunctionName : espconn_copy_partial
+ * Description  : reconnect with host
+ * Parameters   : arg -- Additional argument to pass to the callback function
+ * Returns      : none
+*******************************************************************************/
+
+void espconn_copy_partial(struct espconn *pesp_dest, struct espconn *pesp_source);
+
+/******************************************************************************
+ * FunctionName : espconn_copy_partial
+ * Description  : insert the node to the active connection list
+ * Parameters   : arg -- Additional argument to pass to the callback function
+ * Returns      : none
+*******************************************************************************/
+
+void espconn_list_creat(espconn_msg **phead, espconn_msg* pinsert);
+
+/******************************************************************************
+ * FunctionName : espconn_list_delete
+ * Description  : remove the node from the active connection list
+ * Parameters   : arg -- Additional argument to pass to the callback function
+ * Returns      : none
+*******************************************************************************/
+
+void espconn_list_delete(espconn_msg **phead, espconn_msg* pdelete);
+
+/******************************************************************************
+ * FunctionName : espconn_find_connection
+ * Description  : Initialize the server: set up a listening PCB and bind it to
+ *                the defined port
+ * Parameters   : espconn -- the espconn used to build server
+ * Returns      : none
+ *******************************************************************************/
+
+bool espconn_find_connection(struct espconn *pespconn, espconn_msg **pnode);
+
+/******************************************************************************
+ * FunctionName : espconn_get_connection_info
+ * Description  : used to specify the function that should be called when disconnect
+ * Parameters   : espconn -- espconn to set the err callback
+ *                discon_cb -- err callback function to call when err
+ * Returns      : none
+*******************************************************************************/
+
+sint8 espconn_get_connection_info(struct espconn *pespconn, remot_info **pcon_info, uint8 typeflags);
+
+/******************************************************************************
+ * FunctionName : espconn_connect
+ * Description  : The function given as the connect
+ * Parameters   : espconn -- the espconn used to listen the connection
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_connect(struct espconn *espconn);
+
+/******************************************************************************
+ * FunctionName : espconn_disconnect
+ * Description  : disconnect with host
+ * Parameters   : espconn -- the espconn used to disconnect the connection
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_disconnect(struct espconn *espconn);
+
+/******************************************************************************
+ * FunctionName : espconn_delete
+ * Description  : disconnect with host
+ * Parameters   : espconn -- the espconn used to disconnect the connection
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_delete(struct espconn *espconn);
+
+/******************************************************************************
+ * FunctionName : espconn_accept
+ * Description  : The function given as the listen
+ * Parameters   : espconn -- the espconn used to listen the connection
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_accept(struct espconn *espconn);
+
+/******************************************************************************
+ * FunctionName : espconn_create
+ * Description  : sent data for client or server
+ * Parameters   : espconn -- espconn to the data transmission
+ * Returns      : result
+*******************************************************************************/
+
+extern sint8 espconn_create(struct espconn *espconn);
+
+/******************************************************************************
+ * FunctionName : espconn_tcp_get_max_con
+ * Description  : get the number of simulatenously active TCP connections
+ * Parameters   : none
+ * Returns      : none
+*******************************************************************************/
+
+extern uint8 espconn_tcp_get_max_con(void);
+
+/******************************************************************************
+ * FunctionName : espconn_tcp_set_max_con
+ * Description  : set the number of simulatenously active TCP connections
+ * Parameters   : num -- total number
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_tcp_set_max_con(uint8 num);
+/******************************************************************************
+ * FunctionName : espconn_tcp_get_max_con_allow
+ * Description  : get the count of simulatenously active connections on the server
+ * Parameters   : espconn -- espconn to get the count
+ * Returns      : result
+*******************************************************************************/
+
+extern sint8 espconn_tcp_get_max_con_allow(struct espconn *espconn);
+
+/******************************************************************************
+ * FunctionName : espconn_tcp_set_max_con_allow
+ * Description  : set the count of simulatenously active connections on the server
+ * Parameters   : espconn -- espconn to set the count
+ * Returns      : result
+*******************************************************************************/
+
+extern sint8 espconn_tcp_set_max_con_allow(struct espconn *espconn, uint8 num);
+
+/******************************************************************************
+ * FunctionName : espconn_regist_time
+ * Description  : used to specify the time that should be called when don't recv data
+ * Parameters   : espconn -- the espconn used to the connection
+ * 				  interval -- the timer when don't recv data
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_regist_time(struct espconn *espconn, uint32 interval, uint8 type_flag);
+
+/******************************************************************************
+ * FunctionName : espconn_regist_sentcb
+ * Description  : Used to specify the function that should be called when data
+ * 				  has been successfully delivered to the remote host.
+ * Parameters   : struct espconn *espconn -- espconn to set the sent callback
+ * 				  espconn_sent_callback sent_cb -- sent callback function to 
+ * 				  call for this espconn when data is successfully sent
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_regist_sentcb(struct espconn *espconn, espconn_sent_callback sent_cb);
+
+/******************************************************************************
+ * FunctionName : espconn_sent
+ * Description  : sent data for client or server
+ * Parameters   : espconn -- espconn to set for client or server
+ * 				  psent -- data to send
+ *                length -- length of data to send
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_sent(struct espconn *espconn, uint8 *psent, uint16 length);
+
+/******************************************************************************
+ * FunctionName : espconn_regist_connectcb
+ * Description  : used to specify the function that should be called when 
+ * 				  connects to host. 
+ * Parameters   : espconn -- espconn to set the connect callback 
+ * 				  connect_cb -- connected callback function to call when connected 
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_regist_connectcb(struct espconn *espconn, espconn_connect_callback connect_cb);
+
+/******************************************************************************
+ * FunctionName : espconn_regist_recvcb
+ * Description  : used to specify the function that should be called when recv 
+ * 				  data from host.
+ * Parameters   : espconn -- espconn to set the recv callback 
+ * 				  recv_cb -- recv callback function to call when recv data
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_regist_recvcb(struct espconn *espconn, espconn_recv_callback recv_cb);
+
+/******************************************************************************
+ * FunctionName : espconn_regist_reconcb
+ * Description  : used to specify the function that should be called when connection 
+ * 				  because of err disconnect.
+ * Parameters   : espconn -- espconn to set the err callback 
+ * 				  recon_cb -- err callback function to call when err 
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_regist_reconcb(struct espconn *espconn, espconn_reconnect_callback recon_cb);
+
+/******************************************************************************
+ * FunctionName : espconn_regist_disconcb
+ * Description  : used to specify the function that should be called when disconnect
+ * Parameters   : espconn -- espconn to set the err callback
+ *                discon_cb -- err callback function to call when err
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_regist_disconcb(struct espconn *espconn, espconn_connect_callback discon_cb);
+
+/******************************************************************************
+ * FunctionName : espconn_port
+ * Description  : access port value for client so that we don't end up bouncing
+ *                all connections at the same time .
+ * Parameters   : none
+ * Returns      : access port value
+*******************************************************************************/
+
+extern uint32 espconn_port(void);
+
+/******************************************************************************
+ * FunctionName : espconn_set_opt
+ * Description  : access port value for client so that we don't end up bouncing
+ *                all connections at the same time .
+ * Parameters   : none
+ * Returns      : access port value
+*******************************************************************************/
+extern sint8 espconn_set_opt(struct espconn *espconn, uint8 opt);
+
+/******************************************************************************
+ * FunctionName : espconn_gethostbyname
+ * Description  : Resolve a hostname (string) into an IP address.
+ * Parameters   : pespconn -- espconn to resolve a hostname
+ *                hostname -- the hostname that is to be queried
+ *                addr -- pointer to a ip_addr_t where to store the address if 
+ *                        it is already cached in the dns_table (only valid if
+ *                        ESPCONN_OK is returned!)
+ *                found -- a callback function to be called on success, failure
+ *                         or timeout (only if ERR_INPROGRESS is returned!)
+ * Returns      : err_t return code
+ *                - ESPCONN_OK if hostname is a valid IP address string or the host
+ *                  name is already in the local names table.
+ *                - ESPCONN_INPROGRESS enqueue a request to be sent to the DNS server
+ *                  for resolution if no errors are present.
+ *                - ESPCONN_ARG: dns client not initialized or invalid hostname
+*******************************************************************************/
+
+extern sint8 espconn_gethostbyname(struct espconn *pespconn, const char *name, ip_addr_t *addr, dns_found_callback found);
+
+/******************************************************************************
+ * FunctionName : espconn_igmp_join
+ * Description  : join a multicast group
+ * Parameters   : host_ip -- the ip address of udp server
+ * 				  multicast_ip -- multicast ip given by user
+ * Returns      : none
+*******************************************************************************/
+extern sint8 espconn_igmp_join(ip_addr_t *host_ip, ip_addr_t *multicast_ip);
+
+/******************************************************************************
+ * FunctionName : espconn_igmp_leave
+ * Description  : leave a multicast group
+ * Parameters   : host_ip -- the ip address of udp server
+ * 				  multicast_ip -- multicast ip given by user
+ * Returns      : none
+*******************************************************************************/
+extern sint8 espconn_igmp_leave(ip_addr_t *host_ip, ip_addr_t *multicast_ip);
+
+#endif
+

app/include/lwip/app/espconn_tcp.h

@@ -0,0 +1,43 @@
+#ifndef __ESPCONN_TCP_H__
+#define __ESPCONN_TCP_H__
+
+#ifndef ESPCONN_TCP_DEBUG
+#define ESPCONN_TCP_DEBUG LWIP_DBG_OFF
+#endif
+#include "lwip/app/espconn.h"
+
+#ifndef ESPCONN_TCP_TIMER
+#define ESPCONN_TCP_TIMER 40
+#endif
+
+/******************************************************************************
+ * FunctionName : espconn_tcp_disconnect
+ * Description  : A new incoming connection has been disconnected.
+ * Parameters   : espconn -- the espconn used to disconnect with host
+ * Returns      : none
+*******************************************************************************/
+
+extern void espconn_tcp_disconnect(espconn_msg *pdiscon);
+
+/******************************************************************************
+ * FunctionName : espconn_tcp_client
+ * Description  : Initialize the client: set up a connect PCB and bind it to 
+ *                the defined port
+ * Parameters   : espconn -- the espconn used to build client
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_tcp_client(struct espconn* espconn);
+
+/******************************************************************************
+ * FunctionName : espconn_tcp_server
+ * Description  : Initialize the server: set up a listening PCB and bind it to 
+ *                the defined port
+ * Parameters   : espconn -- the espconn used to build server
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_tcp_server(struct espconn *espconn);
+
+#endif /* __CLIENT_TCP_H__ */
+

app/include/lwip/app/espconn_udp.h

@@ -0,0 +1,51 @@
+#ifndef __ESPCONN_UDP_H__
+#define __ESPCONN_UDP_H__
+
+#ifndef ESPCONN_UDP_DEBUG
+#define ESPCONN_UDP_DEBUG LWIP_DBG_OFF
+#endif
+
+#include "lwip/app/espconn.h"
+
+/******************************************************************************
+ * FunctionName : espconn_udp_client
+ * Description  : Initialize the client: set up a PCB and bind it to the port
+ * Parameters   : pespconn -- the espconn used to build client
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_udp_client(struct espconn *pespconn);
+
+/******************************************************************************
+ * FunctionName : espconn_udp_disconnect
+ * Description  : A new incoming connection has been disconnected.
+ * Parameters   : espconn -- the espconn used to disconnect with host
+ * Returns      : none
+*******************************************************************************/
+
+extern void espconn_udp_disconnect(espconn_msg *pdiscon);
+
+/******************************************************************************
+ * FunctionName : espconn_udp_server
+ * Description  : Initialize the server: set up a PCB and bind it to the port
+ * Parameters   : pespconn -- the espconn used to build server
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_udp_server(struct espconn *espconn);
+
+/******************************************************************************
+ * FunctionName : espconn_udp_sent
+ * Description  : sent data for client or server
+ * Parameters   : void *arg -- client or server to send
+ *                uint8* psent -- Data to send
+ *                uint16 length -- Length of data to send
+ * Returns      : none
+*******************************************************************************/
+
+extern void espconn_udp_sent(void *arg, uint8 *psent, uint16 length);
+
+
+#endif /* __ESPCONN_UDP_H__ */
+
+

app/include/lwip/app/ping.h

@@ -0,0 +1,85 @@
+#ifndef __PING_H__
+#define __PING_H__
+#include "lwip/ip_addr.h"
+#include "lwip/icmp.h"
+/**
+ * PING_USE_SOCKETS: Set to 1 to use sockets, otherwise the raw api is used
+ */
+#ifndef PING_USE_SOCKETS
+#define PING_USE_SOCKETS    LWIP_SOCKET
+#endif
+
+/**
+ * PING_DEBUG: Enable debugging for PING.
+ */
+#ifndef PING_DEBUG
+#define PING_DEBUG     LWIP_DBG_OFF
+#endif
+
+/** ping receive timeout - in milliseconds */
+#ifndef PING_RCV_TIMEO
+#define PING_RCV_TIMEO 1000
+#endif
+
+/** ping delay - in milliseconds */
+#ifndef PING_COARSE
+#define PING_COARSE     1000
+#endif
+
+/** ping identifier - must fit on a u16_t */
+#ifndef PING_ID
+#define PING_ID        0xAFAF
+#endif
+
+/** ping additional data size to include in the packet */
+#ifndef PING_DATA_SIZE
+#define PING_DATA_SIZE 32
+#endif
+
+/** ping result action - no default action */
+#ifndef PING_RESULT
+#define PING_RESULT(ping_ok)
+#endif
+
+#define DEFAULT_PING_MAX_COUNT 4
+#define PING_TIMEOUT_MS 1000
+
+typedef void (* ping_recv_function)(void* arg, void *pdata);
+typedef void (* ping_sent_function)(void* arg, void *pdata);
+
+struct ping_option{
+	uint32 count;
+	uint32 ip;
+	uint32 coarse_time;
+	ping_recv_function recv_function;
+	ping_sent_function sent_function;
+	void* reverse;
+};
+
+struct ping_msg{
+	struct ping_option *ping_opt;
+	struct raw_pcb *ping_pcb;
+	uint32 ping_start;
+	uint32 ping_sent;
+	uint32 timeout_count;
+	uint32 max_count;
+	uint32 sent_count;
+	uint32 coarse_time;
+};
+
+struct ping_resp{
+	uint32 total_count;
+	uint32 resp_time;
+	uint32 seqno;
+	uint32 timeout_count;
+	uint32 bytes;
+	uint32 total_bytes;
+	uint32 total_time;
+	sint8  ping_err;
+};
+
+bool ping_start(struct ping_option *ping_opt);
+bool ping_regist_recv(struct ping_option *ping_opt, ping_recv_function ping_recv);
+bool ping_regist_sent(struct ping_option *ping_opt, ping_sent_function ping_sent);
+
+#endif /* __PING_H__ */

app/include/lwip/arch.h

@@ -0,0 +1,238 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_ARCH_H__
+#define __LWIP_ARCH_H__
+
+#ifndef LITTLE_ENDIAN
+#define LITTLE_ENDIAN 1234
+#endif
+
+#ifndef BIG_ENDIAN
+#define BIG_ENDIAN 4321
+#endif
+
+#include "arch/cc.h"
+
+/** Temporary: define format string for size_t if not defined in cc.h */
+#ifndef SZT_F
+#define SZT_F U32_F
+#endif /* SZT_F */
+/** Temporary upgrade helper: define format string for u8_t as hex if not
+    defined in cc.h */
+#ifndef X8_F
+#define X8_F  "02x"
+#endif /* X8_F */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef PACK_STRUCT_BEGIN
+#define PACK_STRUCT_BEGIN
+#endif /* PACK_STRUCT_BEGIN */
+
+#ifndef PACK_STRUCT_END
+#define PACK_STRUCT_END
+#endif /* PACK_STRUCT_END */
+
+#ifndef PACK_STRUCT_FIELD
+#define PACK_STRUCT_FIELD(x) x
+#endif /* PACK_STRUCT_FIELD */
+
+
+#ifndef LWIP_UNUSED_ARG
+#define LWIP_UNUSED_ARG(x) (void)x
+#endif /* LWIP_UNUSED_ARG */ 
+
+
+#ifdef LWIP_PROVIDE_ERRNO
+
+#define  EPERM         1  /* Operation not permitted */
+#define  ENOENT        2  /* No such file or directory */
+#define  ESRCH         3  /* No such process */
+#define  EINTR         4  /* Interrupted system call */
+#define  EIO           5  /* I/O error */
+#define  ENXIO         6  /* No such device or address */
+#define  E2BIG         7  /* Arg list too long */
+#define  ENOEXEC       8  /* Exec format error */
+#define  EBADF         9  /* Bad file number */
+#define  ECHILD       10  /* No child processes */
+#define  EAGAIN       11  /* Try again */
+#define  ENOMEM       12  /* Out of memory */
+#define  EACCES       13  /* Permission denied */
+#define  EFAULT       14  /* Bad address */
+#define  ENOTBLK      15  /* Block device required */
+#define  EBUSY        16  /* Device or resource busy */
+#define  EEXIST       17  /* File exists */
+#define  EXDEV        18  /* Cross-device link */
+#define  ENODEV       19  /* No such device */
+#define  ENOTDIR      20  /* Not a directory */
+#define  EISDIR       21  /* Is a directory */
+#define  EINVAL       22  /* Invalid argument */
+#define  ENFILE       23  /* File table overflow */
+#define  EMFILE       24  /* Too many open files */
+#define  ENOTTY       25  /* Not a typewriter */
+#define  ETXTBSY      26  /* Text file busy */
+#define  EFBIG        27  /* File too large */
+#define  ENOSPC       28  /* No space left on device */
+#define  ESPIPE       29  /* Illegal seek */
+#define  EROFS        30  /* Read-only file system */
+#define  EMLINK       31  /* Too many links */
+#define  EPIPE        32  /* Broken pipe */
+#define  EDOM         33  /* Math argument out of domain of func */
+#define  ERANGE       34  /* Math result not representable */
+#define  EDEADLK      35  /* Resource deadlock would occur */
+#define  ENAMETOOLONG 36  /* File name too long */
+#define  ENOLCK       37  /* No record locks available */
+#define  ENOSYS       38  /* Function not implemented */
+#define  ENOTEMPTY    39  /* Directory not empty */
+#define  ELOOP        40  /* Too many symbolic links encountered */
+#define  EWOULDBLOCK  EAGAIN  /* Operation would block */
+#define  ENOMSG       42  /* No message of desired type */
+#define  EIDRM        43  /* Identifier removed */
+#define  ECHRNG       44  /* Channel number out of range */
+#define  EL2NSYNC     45  /* Level 2 not synchronized */
+#define  EL3HLT       46  /* Level 3 halted */
+#define  EL3RST       47  /* Level 3 reset */
+#define  ELNRNG       48  /* Link number out of range */
+#define  EUNATCH      49  /* Protocol driver not attached */
+#define  ENOCSI       50  /* No CSI structure available */
+#define  EL2HLT       51  /* Level 2 halted */
+#define  EBADE        52  /* Invalid exchange */
+#define  EBADR        53  /* Invalid request descriptor */
+#define  EXFULL       54  /* Exchange full */
+#define  ENOANO       55  /* No anode */
+#define  EBADRQC      56  /* Invalid request code */
+#define  EBADSLT      57  /* Invalid slot */
+
+#define  EDEADLOCK    EDEADLK
+
+#define  EBFONT       59  /* Bad font file format */
+#define  ENOSTR       60  /* Device not a stream */
+#define  ENODATA      61  /* No data available */
+#define  ETIME        62  /* Timer expired */
+#define  ENOSR        63  /* Out of streams resources */
+#define  ENONET       64  /* Machine is not on the network */
+#define  ENOPKG       65  /* Package not installed */
+#define  EREMOTE      66  /* Object is remote */
+#define  ENOLINK      67  /* Link has been severed */
+#define  EADV         68  /* Advertise error */
+#define  ESRMNT       69  /* Srmount error */
+#define  ECOMM        70  /* Communication error on send */
+#define  EPROTO       71  /* Protocol error */
+#define  EMULTIHOP    72  /* Multihop attempted */
+#define  EDOTDOT      73  /* RFS specific error */
+#define  EBADMSG      74  /* Not a data message */
+#define  EOVERFLOW    75  /* Value too large for defined data type */
+#define  ENOTUNIQ     76  /* Name not unique on network */
+#define  EBADFD       77  /* File descriptor in bad state */
+#define  EREMCHG      78  /* Remote address changed */
+#define  ELIBACC      79  /* Can not access a needed shared library */
+#define  ELIBBAD      80  /* Accessing a corrupted shared library */
+#define  ELIBSCN      81  /* .lib section in a.out corrupted */
+#define  ELIBMAX      82  /* Attempting to link in too many shared libraries */
+#define  ELIBEXEC     83  /* Cannot exec a shared library directly */
+#define  EILSEQ       84  /* Illegal byte sequence */
+#define  ERESTART     85  /* Interrupted system call should be restarted */
+#define  ESTRPIPE     86  /* Streams pipe error */
+#define  EUSERS       87  /* Too many users */
+#define  ENOTSOCK     88  /* Socket operation on non-socket */
+#define  EDESTADDRREQ 89  /* Destination address required */
+#define  EMSGSIZE     90  /* Message too long */
+#define  EPROTOTYPE   91  /* Protocol wrong type for socket */
+#define  ENOPROTOOPT  92  /* Protocol not available */
+#define  EPROTONOSUPPORT 93  /* Protocol not supported */
+#define  ESOCKTNOSUPPORT 94  /* Socket type not supported */
+#define  EOPNOTSUPP      95  /* Operation not supported on transport endpoint */
+#define  EPFNOSUPPORT    96  /* Protocol family not supported */
+#define  EAFNOSUPPORT    97  /* Address family not supported by protocol */
+#define  EADDRINUSE      98  /* Address already in use */
+#define  EADDRNOTAVAIL   99  /* Cannot assign requested address */
+#define  ENETDOWN       100  /* Network is down */
+#define  ENETUNREACH    101  /* Network is unreachable */
+#define  ENETRESET      102  /* Network dropped connection because of reset */
+#define  ECONNABORTED   103  /* Software caused connection abort */
+#define  ECONNRESET     104  /* Connection reset by peer */
+#define  ENOBUFS        105  /* No buffer space available */
+#define  EISCONN        106  /* Transport endpoint is already connected */
+#define  ENOTCONN       107  /* Transport endpoint is not connected */
+#define  ESHUTDOWN      108  /* Cannot send after transport endpoint shutdown */
+#define  ETOOMANYREFS   109  /* Too many references: cannot splice */
+#define  ETIMEDOUT      110  /* Connection timed out */
+#define  ECONNREFUSED   111  /* Connection refused */
+#define  EHOSTDOWN      112  /* Host is down */
+#define  EHOSTUNREACH   113  /* No route to host */
+#define  EALREADY       114  /* Operation already in progress */
+#define  EINPROGRESS    115  /* Operation now in progress */
+#define  ESTALE         116  /* Stale NFS file handle */
+#define  EUCLEAN        117  /* Structure needs cleaning */
+#define  ENOTNAM        118  /* Not a XENIX named type file */
+#define  ENAVAIL        119  /* No XENIX semaphores available */
+#define  EISNAM         120  /* Is a named type file */
+#define  EREMOTEIO      121  /* Remote I/O error */
+#define  EDQUOT         122  /* Quota exceeded */
+
+#define  ENOMEDIUM      123  /* No medium found */
+#define  EMEDIUMTYPE    124  /* Wrong medium type */
+
+
+#define ENSROK                    0 /* DNS server returned answer with no data */
+#define ENSRNODATA              160 /* DNS server returned answer with no data */
+#define ENSRFORMERR             161 /* DNS server claims query was misformatted */
+#define ENSRSERVFAIL            162 /* DNS server returned general failure */
+#define ENSRNOTFOUND            163 /* Domain name not found */
+#define ENSRNOTIMP              164 /* DNS server does not implement requested operation */
+#define ENSRREFUSED             165 /* DNS server refused query */
+#define ENSRBADQUERY            166 /* Misformatted DNS query */
+#define ENSRBADNAME             167 /* Misformatted domain name */
+#define ENSRBADFAMILY           168 /* Unsupported address family */
+#define ENSRBADRESP             169 /* Misformatted DNS reply */
+#define ENSRCONNREFUSED         170 /* Could not contact DNS servers */
+#define ENSRTIMEOUT             171 /* Timeout while contacting DNS servers */
+#define ENSROF                  172 /* End of file */
+#define ENSRFILE                173 /* Error reading file */
+#define ENSRNOMEM               174 /* Out of memory */
+#define ENSRDESTRUCTION         175 /* Application terminated lookup */
+#define ENSRQUERYDOMAINTOOLONG  176 /* Domain name is too long */
+#define ENSRCNAMELOOP           177 /* Domain name is too long */
+
+#ifndef errno
+extern int errno;
+#endif
+
+#endif /* LWIP_PROVIDE_ERRNO */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_ARCH_H__ */

app/include/lwip/autoip.h

@@ -0,0 +1,119 @@
+/**
+ * @file
+ *
+ * AutoIP Automatic LinkLocal IP Configuration
+ */
+
+/*
+ *
+ * Copyright (c) 2007 Dominik Spies <kontakt@dspies.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * Author: Dominik Spies <kontakt@dspies.de>
+ *
+ * This is a AutoIP implementation for the lwIP TCP/IP stack. It aims to conform
+ * with RFC 3927.
+ *
+ *
+ * Please coordinate changes and requests with Dominik Spies
+ * <kontakt@dspies.de>
+ */
+ 
+#ifndef __LWIP_AUTOIP_H__
+#define __LWIP_AUTOIP_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_AUTOIP /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/netif.h"
+#include "lwip/udp.h"
+#include "netif/etharp.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* AutoIP Timing */
+#define AUTOIP_TMR_INTERVAL      100
+#define AUTOIP_TICKS_PER_SECOND (1000 / AUTOIP_TMR_INTERVAL)
+
+/* RFC 3927 Constants */
+#define PROBE_WAIT               1   /* second   (initial random delay)                 */
+#define PROBE_MIN                1   /* second   (minimum delay till repeated probe)    */
+#define PROBE_MAX                2   /* seconds  (maximum delay till repeated probe)    */
+#define PROBE_NUM                3   /*          (number of probe packets)              */
+#define ANNOUNCE_NUM             2   /*          (number of announcement packets)       */
+#define ANNOUNCE_INTERVAL        2   /* seconds  (time between announcement packets)    */
+#define ANNOUNCE_WAIT            2   /* seconds  (delay before announcing)              */
+#define MAX_CONFLICTS            10  /*          (max conflicts before rate limiting)   */
+#define RATE_LIMIT_INTERVAL      60  /* seconds  (delay between successive attempts)    */
+#define DEFEND_INTERVAL          10  /* seconds  (min. wait between defensive ARPs)     */
+
+/* AutoIP client states */
+#define AUTOIP_STATE_OFF         0
+#define AUTOIP_STATE_PROBING     1
+#define AUTOIP_STATE_ANNOUNCING  2
+#define AUTOIP_STATE_BOUND       3
+
+struct autoip
+{
+  ip_addr_t llipaddr;       /* the currently selected, probed, announced or used LL IP-Address */
+  u8_t state;               /* current AutoIP state machine state */
+  u8_t sent_num;            /* sent number of probes or announces, dependent on state */
+  u16_t ttw;                /* ticks to wait, tick is AUTOIP_TMR_INTERVAL long */
+  u8_t lastconflict;        /* ticks until a conflict can be solved by defending */
+  u8_t tried_llipaddr;      /* total number of probed/used Link Local IP-Addresses */
+};
+
+
+/** Init srand, has to be called before entering mainloop */
+void autoip_init(void);
+
+/** Set a struct autoip allocated by the application to work with */
+void autoip_set_struct(struct netif *netif, struct autoip *autoip);
+
+/** Start AutoIP client */
+err_t autoip_start(struct netif *netif);
+
+/** Stop AutoIP client */
+err_t autoip_stop(struct netif *netif);
+
+/** Handles every incoming ARP Packet, called by etharp_arp_input */
+void autoip_arp_reply(struct netif *netif, struct etharp_hdr *hdr);
+
+/** Has to be called in loop every AUTOIP_TMR_INTERVAL milliseconds */
+void autoip_tmr(void);
+
+/** Handle a possible change in the network configuration */
+void autoip_network_changed(struct netif *netif);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_AUTOIP */
+
+#endif /* __LWIP_AUTOIP_H__ */

app/include/lwip/debug.h

@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_DEBUG_H__
+#define __LWIP_DEBUG_H__
+
+#include "lwip/arch.h"
+
+/** lower two bits indicate debug level
+ * - 0 all
+ * - 1 warning
+ * - 2 serious
+ * - 3 severe
+ */
+#define LWIP_DBG_LEVEL_ALL     0x00
+#define LWIP_DBG_LEVEL_OFF     LWIP_DBG_LEVEL_ALL /* compatibility define only */
+#define LWIP_DBG_LEVEL_WARNING 0x01 /* bad checksums, dropped packets, ... */
+#define LWIP_DBG_LEVEL_SERIOUS 0x02 /* memory allocation failures, ... */
+#define LWIP_DBG_LEVEL_SEVERE  0x03
+#define LWIP_DBG_MASK_LEVEL    0x03
+
+/** flag for LWIP_DEBUGF to enable that debug message */
+#define LWIP_DBG_ON            0x80U
+/** flag for LWIP_DEBUGF to disable that debug message */
+#define LWIP_DBG_OFF           0x00U
+
+/** flag for LWIP_DEBUGF indicating a tracing message (to follow program flow) */
+#define LWIP_DBG_TRACE         0x40U
+/** flag for LWIP_DEBUGF indicating a state debug message (to follow module states) */
+#define LWIP_DBG_STATE         0x20U
+/** flag for LWIP_DEBUGF indicating newly added code, not thoroughly tested yet */
+#define LWIP_DBG_FRESH         0x10U
+/** flag for LWIP_DEBUGF to halt after printing this debug message */
+#define LWIP_DBG_HALT          0x08U
+
+#ifndef LWIP_NOASSERT
+#define LWIP_ASSERT(message, assertion) do { if(!(assertion)) \
+  LWIP_PLATFORM_ASSERT(message); } while(0)
+#else  /* LWIP_NOASSERT */
+#define LWIP_ASSERT(message, assertion) 
+#endif /* LWIP_NOASSERT */
+
+/** if "expression" isn't true, then print "message" and execute "handler" expression */
+#ifndef LWIP_ERROR
+#define LWIP_ERROR(message, expression, handler) do { if (!(expression)) { \
+  LWIP_PLATFORM_ASSERT(message); handler;}} while(0)
+#endif /* LWIP_ERROR */
+
+#ifdef LWIP_DEBUG
+/** print debug message only if debug message type is enabled...
+ *  AND is of correct type AND is at least LWIP_DBG_LEVEL
+ */
+#define LWIP_DEBUGF(debug, message) do { \
+                               if ( \
+                                   ((debug) & LWIP_DBG_ON) && \
+                                   ((debug) & LWIP_DBG_TYPES_ON) && \
+                                   ((s16_t)((debug) & LWIP_DBG_MASK_LEVEL) >= LWIP_DBG_MIN_LEVEL)) { \
+                                 LWIP_PLATFORM_DIAG(message); \
+                                 if ((debug) & LWIP_DBG_HALT) { \
+                                   while(1); \
+                                 } \
+                               } \
+                             } while(0)
+
+#else  /* LWIP_DEBUG */
+#define LWIP_DEBUGF(debug, message) 
+#endif /* LWIP_DEBUG */
+
+#endif /* __LWIP_DEBUG_H__ */
+

app/include/lwip/def.h

@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_DEF_H__
+#define __LWIP_DEF_H__
+
+/* arch.h might define NULL already */
+#include "lwip/arch.h"
+#include "lwip/opt.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define LWIP_MAX(x , y)  (((x) > (y)) ? (x) : (y))
+#define LWIP_MIN(x , y)  (((x) < (y)) ? (x) : (y))
+
+#ifndef NULL
+#define NULL ((void *)0)
+#endif
+
+/** Get the absolute difference between 2 u32_t values (correcting overflows)
+ * 'a' is expected to be 'higher' (without overflow) than 'b'. */
+#define LWIP_U32_DIFF(a, b) (((a) >= (b)) ? ((a) - (b)) : (((a) + ((b) ^ 0xFFFFFFFF) + 1))) 
+
+/* Endianess-optimized shifting of two u8_t to create one u16_t */
+#if BYTE_ORDER == LITTLE_ENDIAN
+#define LWIP_MAKE_U16(a, b) ((a << 8) | b)
+#else
+#define LWIP_MAKE_U16(a, b) ((b << 8) | a)
+#endif 
+
+#ifndef LWIP_PLATFORM_BYTESWAP
+#define LWIP_PLATFORM_BYTESWAP 0
+#endif
+
+#ifndef LWIP_PREFIX_BYTEORDER_FUNCS
+/* workaround for naming collisions on some platforms */
+
+#ifdef htons
+#undef htons
+#endif /* htons */
+#ifdef htonl
+#undef htonl
+#endif /* htonl */
+#ifdef ntohs
+#undef ntohs
+#endif /* ntohs */
+#ifdef ntohl
+#undef ntohl
+#endif /* ntohl */
+
+#define htons(x) lwip_htons(x)
+#define ntohs(x) lwip_ntohs(x)
+#define htonl(x) lwip_htonl(x)
+#define ntohl(x) lwip_ntohl(x)
+#endif /* LWIP_PREFIX_BYTEORDER_FUNCS */
+
+#if BYTE_ORDER == BIG_ENDIAN
+#define lwip_htons(x) (x)
+#define lwip_ntohs(x) (x)
+#define lwip_htonl(x) (x)
+#define lwip_ntohl(x) (x)
+#define PP_HTONS(x) (x)
+#define PP_NTOHS(x) (x)
+#define PP_HTONL(x) (x)
+#define PP_NTOHL(x) (x)
+#else /* BYTE_ORDER != BIG_ENDIAN */
+#if LWIP_PLATFORM_BYTESWAP
+#define lwip_htons(x) LWIP_PLATFORM_HTONS(x)
+#define lwip_ntohs(x) LWIP_PLATFORM_HTONS(x)
+#define lwip_htonl(x) LWIP_PLATFORM_HTONL(x)
+#define lwip_ntohl(x) LWIP_PLATFORM_HTONL(x)
+#else /* LWIP_PLATFORM_BYTESWAP */
+u16_t lwip_htons(u16_t x);
+u16_t lwip_ntohs(u16_t x);
+u32_t lwip_htonl(u32_t x);
+u32_t lwip_ntohl(u32_t x);
+#endif /* LWIP_PLATFORM_BYTESWAP */
+
+/* These macros should be calculated by the preprocessor and are used
+   with compile-time constants only (so that there is no little-endian
+   overhead at runtime). */
+#define PP_HTONS(x) ((((x) & 0xff) << 8) | (((x) & 0xff00) >> 8))
+#define PP_NTOHS(x) PP_HTONS(x)
+#define PP_HTONL(x) ((((x) & 0xff) << 24) | \
+                     (((x) & 0xff00) << 8) | \
+                     (((x) & 0xff0000UL) >> 8) | \
+                     (((x) & 0xff000000UL) >> 24))
+#define PP_NTOHL(x) PP_HTONL(x)
+
+#endif /* BYTE_ORDER == BIG_ENDIAN */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_DEF_H__ */
+

app/include/lwip/dhcp.h

@@ -0,0 +1,243 @@
+/** @file
+ */
+
+#ifndef __LWIP_DHCP_H__
+#define __LWIP_DHCP_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_DHCP /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/netif.h"
+#include "lwip/udp.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** period (in seconds) of the application calling dhcp_coarse_tmr() */
+#define DHCP_COARSE_TIMER_SECS 60 
+/** period (in milliseconds) of the application calling dhcp_coarse_tmr() */
+#define DHCP_COARSE_TIMER_MSECS (DHCP_COARSE_TIMER_SECS * 1000UL)
+/** period (in milliseconds) of the application calling dhcp_fine_tmr() */
+#define DHCP_FINE_TIMER_MSECS 500 
+
+#define DHCP_CHADDR_LEN 16U
+#define DHCP_SNAME_LEN  64U
+#define DHCP_FILE_LEN   128U
+
+struct dhcp
+{
+  /** transaction identifier of last sent request */ 
+  u32_t xid;
+  /** our connection to the DHCP server */ 
+  struct udp_pcb *pcb;
+  /** incoming msg */
+  struct dhcp_msg *msg_in;
+  /** current DHCP state machine state */
+  u8_t state;
+  /** retries of current request */
+  u8_t tries;
+#if LWIP_DHCP_AUTOIP_COOP
+  u8_t autoip_coop_state;
+#endif
+  u8_t subnet_mask_given;
+
+  struct pbuf *p_out; /* pbuf of outcoming msg */
+  struct dhcp_msg *msg_out; /* outgoing msg */
+  u16_t options_out_len; /* outgoing msg options length */
+  u16_t request_timeout; /* #ticks with period DHCP_FINE_TIMER_SECS for request timeout */
+  u16_t t1_timeout;  /* #ticks with period DHCP_COARSE_TIMER_SECS for renewal time */
+  u16_t t2_timeout;  /* #ticks with period DHCP_COARSE_TIMER_SECS for rebind time */
+  ip_addr_t server_ip_addr; /* dhcp server address that offered this lease */
+  ip_addr_t offered_ip_addr;
+  ip_addr_t offered_sn_mask;
+  ip_addr_t offered_gw_addr;
+ 
+  u32_t offered_t0_lease; /* lease period (in seconds) */
+  u32_t offered_t1_renew; /* recommended renew time (usually 50% of lease period) */
+  u32_t offered_t2_rebind; /* recommended rebind time (usually 66% of lease period)  */
+  /* @todo: LWIP_DHCP_BOOTP_FILE configuration option?
+     integrate with possible TFTP-client for booting? */
+#define LWIP_DHCP_BOOTP_FILE 0
+#if LWIP_DHCP_BOOTP_FILE
+  ip_addr_t offered_si_addr;
+  char boot_file_name[DHCP_FILE_LEN];
+#endif /* LWIP_DHCP_BOOTPFILE */
+};
+
+/* MUST be compiled with "pack structs" or equivalent! */
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+/** minimum set of fields of any DHCP message */
+struct dhcp_msg
+{
+  PACK_STRUCT_FIELD(u8_t op);
+  PACK_STRUCT_FIELD(u8_t htype);
+  PACK_STRUCT_FIELD(u8_t hlen);
+  PACK_STRUCT_FIELD(u8_t hops);
+  PACK_STRUCT_FIELD(u32_t xid);
+  PACK_STRUCT_FIELD(u16_t secs);
+  PACK_STRUCT_FIELD(u16_t flags);
+  PACK_STRUCT_FIELD(ip_addr_p_t ciaddr);
+  PACK_STRUCT_FIELD(ip_addr_p_t yiaddr);
+  PACK_STRUCT_FIELD(ip_addr_p_t siaddr);
+  PACK_STRUCT_FIELD(ip_addr_p_t giaddr);
+  PACK_STRUCT_FIELD(u8_t chaddr[DHCP_CHADDR_LEN]);
+  PACK_STRUCT_FIELD(u8_t sname[DHCP_SNAME_LEN]);
+  PACK_STRUCT_FIELD(u8_t file[DHCP_FILE_LEN]);
+  PACK_STRUCT_FIELD(u32_t cookie);
+#define DHCP_MIN_OPTIONS_LEN 68U
+/** make sure user does not configure this too small */
+#if ((defined(DHCP_OPTIONS_LEN)) && (DHCP_OPTIONS_LEN < DHCP_MIN_OPTIONS_LEN))
+#  undef DHCP_OPTIONS_LEN
+#endif
+/** allow this to be configured in lwipopts.h, but not too small */
+#if (!defined(DHCP_OPTIONS_LEN))
+/** set this to be sufficient for your options in outgoing DHCP msgs */
+#  define DHCP_OPTIONS_LEN DHCP_MIN_OPTIONS_LEN
+#endif
+  PACK_STRUCT_FIELD(u8_t options[DHCP_OPTIONS_LEN]);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+void dhcp_set_struct(struct netif *netif, struct dhcp *dhcp);
+/** Remove a struct dhcp previously set to the netif using dhcp_set_struct() */
+#define dhcp_remove_struct(netif) do { (netif)->dhcp = NULL; } while(0)
+void dhcp_cleanup(struct netif *netif);
+/** start DHCP configuration */
+err_t dhcp_start(struct netif *netif);
+/** enforce early lease renewal (not needed normally)*/
+err_t dhcp_renew(struct netif *netif);
+/** release the DHCP lease, usually called before dhcp_stop()*/
+err_t dhcp_release(struct netif *netif);
+/** stop DHCP configuration */
+void dhcp_stop(struct netif *netif);
+/** inform server of our manual IP address */
+void dhcp_inform(struct netif *netif);
+/** Handle a possible change in the network configuration */
+void dhcp_network_changed(struct netif *netif);
+
+/** if enabled, check whether the offered IP address is not in use, using ARP */
+#if DHCP_DOES_ARP_CHECK
+void dhcp_arp_reply(struct netif *netif, ip_addr_t *addr);
+#endif
+
+/** to be called every minute */
+void dhcp_coarse_tmr(void);
+/** to be called every half second */
+void dhcp_fine_tmr(void);
+ 
+/** DHCP message item offsets and length */
+#define DHCP_OP_OFS       0
+#define DHCP_HTYPE_OFS    1
+#define DHCP_HLEN_OFS     2
+#define DHCP_HOPS_OFS     3
+#define DHCP_XID_OFS      4
+#define DHCP_SECS_OFS     8
+#define DHCP_FLAGS_OFS    10
+#define DHCP_CIADDR_OFS   12
+#define DHCP_YIADDR_OFS   16
+#define DHCP_SIADDR_OFS   20
+#define DHCP_GIADDR_OFS   24
+#define DHCP_CHADDR_OFS   28
+#define DHCP_SNAME_OFS    44
+#define DHCP_FILE_OFS     108
+#define DHCP_MSG_LEN      236
+
+#define DHCP_COOKIE_OFS   DHCP_MSG_LEN
+#define DHCP_OPTIONS_OFS  (DHCP_MSG_LEN + 4)
+
+#define DHCP_CLIENT_PORT  68  
+#define DHCP_SERVER_PORT  67
+
+/** DHCP client states */
+#define DHCP_OFF          0
+#define DHCP_REQUESTING   1
+#define DHCP_INIT         2
+#define DHCP_REBOOTING    3
+#define DHCP_REBINDING    4
+#define DHCP_RENEWING     5
+#define DHCP_SELECTING    6
+#define DHCP_INFORMING    7
+#define DHCP_CHECKING     8
+#define DHCP_PERMANENT    9
+#define DHCP_BOUND        10
+/** not yet implemented #define DHCP_RELEASING 11 */
+#define DHCP_BACKING_OFF  12
+
+/** AUTOIP cooperatation flags */
+#define DHCP_AUTOIP_COOP_STATE_OFF  0
+#define DHCP_AUTOIP_COOP_STATE_ON   1
+ 
+#define DHCP_BOOTREQUEST  1
+#define DHCP_BOOTREPLY    2
+
+/** DHCP message types */
+#define DHCP_DISCOVER 1
+#define DHCP_OFFER    2
+#define DHCP_REQUEST  3
+#define DHCP_DECLINE  4
+#define DHCP_ACK      5
+#define DHCP_NAK      6
+#define DHCP_RELEASE  7
+#define DHCP_INFORM   8
+
+/** DHCP hardware type, currently only ethernet is supported */
+#define DHCP_HTYPE_ETH 1
+
+#define DHCP_MAGIC_COOKIE 0x63825363UL
+
+/* This is a list of options for BOOTP and DHCP, see RFC 2132 for descriptions */
+
+/** BootP options */
+#define DHCP_OPTION_PAD 0
+#define DHCP_OPTION_SUBNET_MASK 1 /* RFC 2132 3.3 */
+#define DHCP_OPTION_ROUTER 3
+#define DHCP_OPTION_DNS_SERVER 6 
+#define DHCP_OPTION_HOSTNAME 12
+#define DHCP_OPTION_IP_TTL 23
+#define DHCP_OPTION_MTU 26
+#define DHCP_OPTION_BROADCAST 28
+#define DHCP_OPTION_TCP_TTL 37
+#define DHCP_OPTION_END 255
+
+/** DHCP options */
+#define DHCP_OPTION_REQUESTED_IP 50 /* RFC 2132 9.1, requested IP address */
+#define DHCP_OPTION_LEASE_TIME 51 /* RFC 2132 9.2, time in seconds, in 4 bytes */
+#define DHCP_OPTION_OVERLOAD 52 /* RFC2132 9.3, use file and/or sname field for options */
+
+#define DHCP_OPTION_MESSAGE_TYPE 53 /* RFC 2132 9.6, important for DHCP */
+#define DHCP_OPTION_MESSAGE_TYPE_LEN 1
+
+#define DHCP_OPTION_SERVER_ID 54 /* RFC 2132 9.7, server IP address */
+#define DHCP_OPTION_PARAMETER_REQUEST_LIST 55 /* RFC 2132 9.8, requested option types */
+
+#define DHCP_OPTION_MAX_MSG_SIZE 57 /* RFC 2132 9.10, message size accepted >= 576 */
+#define DHCP_OPTION_MAX_MSG_SIZE_LEN 2
+
+#define DHCP_OPTION_T1 58 /* T1 renewal time */
+#define DHCP_OPTION_T2 59 /* T2 rebinding time */
+#define DHCP_OPTION_US 60
+#define DHCP_OPTION_CLIENT_ID 61
+#define DHCP_OPTION_TFTP_SERVERNAME 66
+#define DHCP_OPTION_BOOTFILE 67
+
+/** possible combinations of overloading the file and sname fields with options */
+#define DHCP_OVERLOAD_NONE 0
+#define DHCP_OVERLOAD_FILE 1
+#define DHCP_OVERLOAD_SNAME  2
+#define DHCP_OVERLOAD_SNAME_FILE 3
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_DHCP */
+
+#endif /*__LWIP_DHCP_H__*/

app/include/lwip/dns.h

@@ -0,0 +1,124 @@
+/**
+ * lwip DNS resolver header file.
+
+ * Author: Jim Pettinato 
+ *   April 2007
+
+ * ported from uIP resolv.c Copyright (c) 2002-2003, Adam Dunkels.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote
+ *    products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __LWIP_DNS_H__
+#define __LWIP_DNS_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_DNS /* don't build if not configured for use in lwipopts.h */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** DNS timer period */
+#define DNS_TMR_INTERVAL          1000
+
+/** DNS field TYPE used for "Resource Records" */
+#define DNS_RRTYPE_A              1     /* a host address */
+#define DNS_RRTYPE_NS             2     /* an authoritative name server */
+#define DNS_RRTYPE_MD             3     /* a mail destination (Obsolete - use MX) */
+#define DNS_RRTYPE_MF             4     /* a mail forwarder (Obsolete - use MX) */
+#define DNS_RRTYPE_CNAME          5     /* the canonical name for an alias */
+#define DNS_RRTYPE_SOA            6     /* marks the start of a zone of authority */
+#define DNS_RRTYPE_MB             7     /* a mailbox domain name (EXPERIMENTAL) */
+#define DNS_RRTYPE_MG             8     /* a mail group member (EXPERIMENTAL) */
+#define DNS_RRTYPE_MR             9     /* a mail rename domain name (EXPERIMENTAL) */
+#define DNS_RRTYPE_NULL           10    /* a null RR (EXPERIMENTAL) */
+#define DNS_RRTYPE_WKS            11    /* a well known service description */
+#define DNS_RRTYPE_PTR            12    /* a domain name pointer */
+#define DNS_RRTYPE_HINFO          13    /* host information */
+#define DNS_RRTYPE_MINFO          14    /* mailbox or mail list information */
+#define DNS_RRTYPE_MX             15    /* mail exchange */
+#define DNS_RRTYPE_TXT            16    /* text strings */
+
+/** DNS field CLASS used for "Resource Records" */
+#define DNS_RRCLASS_IN            1     /* the Internet */
+#define DNS_RRCLASS_CS            2     /* the CSNET class (Obsolete - used only for examples in some obsolete RFCs) */
+#define DNS_RRCLASS_CH            3     /* the CHAOS class */
+#define DNS_RRCLASS_HS            4     /* Hesiod [Dyer 87] */
+#define DNS_RRCLASS_FLUSH         0x800 /* Flush bit */
+
+/* The size used for the next line is rather a hack, but it prevents including socket.h in all files
+   that include memp.h, and that would possibly break portability (since socket.h defines some types
+   and constants possibly already define by the OS).
+   Calculation rule:
+   sizeof(struct addrinfo) + sizeof(struct sockaddr_in) + DNS_MAX_NAME_LENGTH + 1 byte zero-termination */
+#define NETDB_ELEM_SIZE           (32 + 16 + DNS_MAX_NAME_LENGTH + 1)
+
+#if DNS_LOCAL_HOSTLIST
+/** struct used for local host-list */
+struct local_hostlist_entry {
+  /** static hostname */
+  const char *name;
+  /** static host address in network byteorder */
+  ip_addr_t addr;
+  struct local_hostlist_entry *next;
+};
+#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC
+#ifndef DNS_LOCAL_HOSTLIST_MAX_NAMELEN
+#define DNS_LOCAL_HOSTLIST_MAX_NAMELEN  DNS_MAX_NAME_LENGTH
+#endif
+#define LOCALHOSTLIST_ELEM_SIZE ((sizeof(struct local_hostlist_entry) + DNS_LOCAL_HOSTLIST_MAX_NAMELEN + 1))
+#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */
+#endif /* DNS_LOCAL_HOSTLIST */
+
+/** Callback which is invoked when a hostname is found.
+ * A function of this type must be implemented by the application using the DNS resolver.
+ * @param name pointer to the name that was looked up.
+ * @param ipaddr pointer to an ip_addr_t containing the IP address of the hostname,
+ *        or NULL if the name could not be found (or on any other error).
+ * @param callback_arg a user-specified callback argument passed to dns_gethostbyname
+*/
+typedef void (*dns_found_callback)(const char *name, ip_addr_t *ipaddr, void *callback_arg);
+
+void           dns_init(void);
+void           dns_tmr(void);
+void           dns_setserver(u8_t numdns, ip_addr_t *dnsserver);
+ip_addr_t      dns_getserver(u8_t numdns);
+err_t          dns_gethostbyname(const char *hostname, ip_addr_t *addr,
+                                 dns_found_callback found, void *callback_arg);
+
+#if DNS_LOCAL_HOSTLIST && DNS_LOCAL_HOSTLIST_IS_DYNAMIC
+int            dns_local_removehost(const char *hostname, const ip_addr_t *addr);
+err_t          dns_local_addhost(const char *hostname, const ip_addr_t *addr);
+#endif /* DNS_LOCAL_HOSTLIST && DNS_LOCAL_HOSTLIST_IS_DYNAMIC */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_DNS */
+
+#endif /* __LWIP_DNS_H__ */

app/include/lwip/err.h

@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_ERR_H__
+#define __LWIP_ERR_H__
+
+#include "lwip/opt.h"
+#include "lwip/arch.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Define LWIP_ERR_T in cc.h if you want to use
+ *  a different type for your platform (must be signed). */
+#ifdef LWIP_ERR_T
+typedef LWIP_ERR_T err_t;
+#else /* LWIP_ERR_T */
+typedef s8_t err_t;
+#endif /* LWIP_ERR_T*/
+
+/* Definitions for error constants. */
+
+#define ERR_OK          0    /* No error, everything OK. */
+#define ERR_MEM        -1    /* Out of memory error.     */
+#define ERR_BUF        -2    /* Buffer error.            */
+#define ERR_TIMEOUT    -3    /* Timeout.                 */
+#define ERR_RTE        -4    /* Routing problem.         */
+#define ERR_INPROGRESS -5    /* Operation in progress    */
+#define ERR_VAL        -6    /* Illegal value.           */
+#define ERR_WOULDBLOCK -7    /* Operation would block.   */
+
+#define ERR_IS_FATAL(e) ((e) < ERR_WOULDBLOCK)
+
+#define ERR_ABRT       -8    /* Connection aborted.      */
+#define ERR_RST        -9    /* Connection reset.        */
+#define ERR_CLSD       -10   /* Connection closed.       */
+#define ERR_CONN       -11   /* Not connected.           */
+
+#define ERR_ARG        -12   /* Illegal argument.        */
+
+#define ERR_USE        -13   /* Address in use.          */
+
+#define ERR_IF         -14   /* Low-level netif error    */
+#define ERR_ISCONN     -15   /* Already connected.       */
+
+
+#ifdef LWIP_DEBUG
+extern const char *lwip_strerr(err_t err)ICACHE_FLASH_ATTR;
+#else
+#define lwip_strerr(x) ""
+#endif /* LWIP_DEBUG */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_ERR_H__ */

app/include/lwip/icmp.h

@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_ICMP_H__
+#define __LWIP_ICMP_H__
+
+#include "lwip/opt.h"
+#include "lwip/pbuf.h"
+#include "lwip/ip_addr.h"
+#include "lwip/netif.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define ICMP_ER 0      /* echo reply */
+#define ICMP_DUR 3     /* destination unreachable */
+#define ICMP_SQ 4      /* source quench */
+#define ICMP_RD 5      /* redirect */
+#define ICMP_ECHO 8    /* echo */
+#define ICMP_TE 11     /* time exceeded */
+#define ICMP_PP 12     /* parameter problem */
+#define ICMP_TS 13     /* timestamp */
+#define ICMP_TSR 14    /* timestamp reply */
+#define ICMP_IRQ 15    /* information request */
+#define ICMP_IR 16     /* information reply */
+
+enum icmp_dur_type {
+  ICMP_DUR_NET = 0,    /* net unreachable */
+  ICMP_DUR_HOST = 1,   /* host unreachable */
+  ICMP_DUR_PROTO = 2,  /* protocol unreachable */
+  ICMP_DUR_PORT = 3,   /* port unreachable */
+  ICMP_DUR_FRAG = 4,   /* fragmentation needed and DF set */
+  ICMP_DUR_SR = 5      /* source route failed */
+};
+
+enum icmp_te_type {
+  ICMP_TE_TTL = 0,     /* time to live exceeded in transit */
+  ICMP_TE_FRAG = 1     /* fragment reassembly time exceeded */
+};
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+/** This is the standard ICMP header only that the u32_t data
+ *  is splitted to two u16_t like ICMP echo needs it.
+ *  This header is also used for other ICMP types that do not
+ *  use the data part.
+ *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ICMP<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><EFBFBD>ṹ<EFBFBD><EFBFBD>
+ *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ICMP<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><EFBFBD>кܴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD>
+ *  <EFBFBD>ýṹͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ICMP<EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD>
+ */
+PACK_STRUCT_BEGIN
+struct icmp_echo_hdr {
+  PACK_STRUCT_FIELD(u8_t type);
+  PACK_STRUCT_FIELD(u8_t code);
+  PACK_STRUCT_FIELD(u16_t chksum);
+  PACK_STRUCT_FIELD(u16_t id);
+  PACK_STRUCT_FIELD(u16_t seqno);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+//<2F><>ȡICMP<4D>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD>ֶ<EFBFBD>
+#define ICMPH_TYPE(hdr) ((hdr)->type)
+#define ICMPH_CODE(hdr) ((hdr)->code)
+
+/** Combines type and code to an u16_t <20><>ICMP<4D><50><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2>ֶ<EFBFBD><D6B6><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD>Ӧֵ*/
+#define ICMPH_TYPE_SET(hdr, t) ((hdr)->type = (t))
+#define ICMPH_CODE_SET(hdr, c) ((hdr)->code = (c))
+
+
+#if LWIP_ICMP /* don't build if not configured for use in lwipopts.h */
+
+void icmp_input(struct pbuf *p, struct netif *inp)ICACHE_FLASH_ATTR;
+void icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t)ICACHE_FLASH_ATTR;
+void icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t)ICACHE_FLASH_ATTR;
+
+#endif /* LWIP_ICMP */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_ICMP_H__ */

app/include/lwip/igmp.h

@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2002 CITEL Technologies Ltd.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions 
+ * are met: 
+ * 1. Redistributions of source code must retain the above copyright 
+ *    notice, this list of conditions and the following disclaimer. 
+ * 2. Redistributions in binary form must reproduce the above copyright 
+ *    notice, this list of conditions and the following disclaimer in the 
+ *    documentation and/or other materials provided with the distribution. 
+ * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors 
+ *    may be used to endorse or promote products derived from this software 
+ *    without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED.  IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE 
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
+ * SUCH DAMAGE. 
+ *
+ * This file is a contribution to the lwIP TCP/IP stack.
+ * The Swedish Institute of Computer Science and Adam Dunkels
+ * are specifically granted permission to redistribute this
+ * source code.
+*/
+
+#ifndef __LWIP_IGMP_H__
+#define __LWIP_IGMP_H__
+
+#include "lwip/opt.h"
+#include "lwip/ip_addr.h"
+#include "lwip/netif.h"
+#include "lwip/pbuf.h"
+
+#if LWIP_IGMP /* don't build if not configured for use in lwipopts.h */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* IGMP timer */
+#define IGMP_TMR_INTERVAL              100 /* Milliseconds */
+#define IGMP_V1_DELAYING_MEMBER_TMR   (1000/IGMP_TMR_INTERVAL)
+#define IGMP_JOIN_DELAYING_MEMBER_TMR (500 /IGMP_TMR_INTERVAL)
+
+/* MAC Filter Actions, these are passed to a netif's
+ * igmp_mac_filter callback function. */
+#define IGMP_DEL_MAC_FILTER            0
+#define IGMP_ADD_MAC_FILTER            1
+
+
+/**
+ * igmp group structure - there is
+ * a list of groups for each interface
+ * these should really be linked from the interface, but
+ * if we keep them separate we will not affect the lwip original code
+ * too much
+ * 
+ * There will be a group for the all systems group address but this 
+ * will not run the state machine as it is used to kick off reports
+ * from all the other groups
+ */
+struct igmp_group {
+  /** next link */
+  struct igmp_group *next;
+  /** interface on which the group is active */
+  struct netif      *netif;
+  /** multicast address */
+  ip_addr_t          group_address;
+  /** signifies we were the last person to report */
+  u8_t               last_reporter_flag;
+  /** current state of the group */
+  u8_t               group_state;
+  /** timer for reporting, negative is OFF */
+  u16_t              timer;
+  /** counter of simultaneous uses */
+  u8_t               use;
+};
+
+/*  Prototypes */
+void   igmp_init(void)ICACHE_FLASH_ATTR;
+err_t  igmp_start(struct netif *netif)ICACHE_FLASH_ATTR;
+err_t  igmp_stop(struct netif *netif)ICACHE_FLASH_ATTR;
+void   igmp_report_groups(struct netif *netif)ICACHE_FLASH_ATTR;
+struct igmp_group *igmp_lookfor_group(struct netif *ifp, ip_addr_t *addr)ICACHE_FLASH_ATTR;
+void   igmp_input(struct pbuf *p, struct netif *inp, ip_addr_t *dest)ICACHE_FLASH_ATTR;
+err_t  igmp_joingroup(ip_addr_t *ifaddr, ip_addr_t *groupaddr)ICACHE_FLASH_ATTR;
+err_t  igmp_leavegroup(ip_addr_t *ifaddr, ip_addr_t *groupaddr)ICACHE_FLASH_ATTR;
+void   igmp_tmr(void)ICACHE_FLASH_ATTR;
+#define LWIP_RAND()  rand()
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_IGMP */
+
+#endif /* __LWIP_IGMP_H__ */

app/include/lwip/inet.h

@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_INET_H__
+#define __LWIP_INET_H__
+
+#include "lwip/opt.h"
+#include "lwip/def.h"
+#include "lwip/ip_addr.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** For compatibility with BSD code */
+struct in_addr {
+  u32_t s_addr;
+};
+
+/** 255.255.255.255 */
+#define INADDR_NONE         IPADDR_NONE
+/** 127.0.0.1 */
+#define INADDR_LOOPBACK     IPADDR_LOOPBACK
+/** 0.0.0.0 */
+#define INADDR_ANY          IPADDR_ANY
+/** 255.255.255.255 */
+#define INADDR_BROADCAST    IPADDR_BROADCAST
+
+/* Definitions of the bits in an Internet address integer.
+
+   On subnets, host and network parts are found according to
+   the subnet mask, not these masks.  */
+#define IN_CLASSA(a)        IP_CLASSA(a)
+#define IN_CLASSA_NET       IP_CLASSA_NET
+#define IN_CLASSA_NSHIFT    IP_CLASSA_NSHIFT
+#define IN_CLASSA_HOST      IP_CLASSA_HOST
+#define IN_CLASSA_MAX       IP_CLASSA_MAX
+
+#define IN_CLASSB(b)        IP_CLASSB(b)
+#define IN_CLASSB_NET       IP_CLASSB_NET
+#define IN_CLASSB_NSHIFT    IP_CLASSB_NSHIFT
+#define IN_CLASSB_HOST      IP_CLASSB_HOST
+#define IN_CLASSB_MAX       IP_CLASSB_MAX
+
+#define IN_CLASSC(c)        IP_CLASSC(c)
+#define IN_CLASSC_NET       IP_CLASSC_NET
+#define IN_CLASSC_NSHIFT    IP_CLASSC_NSHIFT
+#define IN_CLASSC_HOST      IP_CLASSC_HOST
+#define IN_CLASSC_MAX       IP_CLASSC_MAX
+
+#define IN_CLASSD(d)        IP_CLASSD(d)
+#define IN_CLASSD_NET       IP_CLASSD_NET     /* These ones aren't really */
+#define IN_CLASSD_NSHIFT    IP_CLASSD_NSHIFT  /*   net and host fields, but */
+#define IN_CLASSD_HOST      IP_CLASSD_HOST    /*   routing needn't know. */
+#define IN_CLASSD_MAX       IP_CLASSD_MAX
+
+#define IN_MULTICAST(a)     IP_MULTICAST(a)
+
+#define IN_EXPERIMENTAL(a)  IP_EXPERIMENTAL(a)
+#define IN_BADCLASS(a)      IP_BADCLASS(a)
+
+#define IN_LOOPBACKNET      IP_LOOPBACKNET
+
+#define inet_addr_from_ipaddr(target_inaddr, source_ipaddr) ((target_inaddr)->s_addr = ip4_addr_get_u32(source_ipaddr))
+#define inet_addr_to_ipaddr(target_ipaddr, source_inaddr)   (ip4_addr_set_u32(target_ipaddr, (source_inaddr)->s_addr))
+/* ATTENTION: the next define only works because both s_addr and ip_addr_t are an u32_t effectively! */
+#define inet_addr_to_ipaddr_p(target_ipaddr_p, source_inaddr)   ((target_ipaddr_p) = (ip_addr_t*)&((source_inaddr)->s_addr))
+
+/* directly map this to the lwip internal functions */
+#define inet_addr(cp)         ipaddr_addr(cp)
+#define inet_aton(cp, addr)   ipaddr_aton(cp, (ip_addr_t*)addr)
+#define inet_ntoa(addr)       ipaddr_ntoa((ip_addr_t*)&(addr))
+#define inet_ntoa_r(addr, buf, buflen) ipaddr_ntoa_r((ip_addr_t*)&(addr), buf, buflen)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_INET_H__ */

app/include/lwip/inet_chksum.h

@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_INET_CHKSUM_H__
+#define __LWIP_INET_CHKSUM_H__
+
+#include "lwip/opt.h"
+
+#include "lwip/pbuf.h"
+#include "lwip/ip_addr.h"
+
+/** Swap the bytes in an u16_t: much like htons() for little-endian */
+#ifndef SWAP_BYTES_IN_WORD
+#if LWIP_PLATFORM_BYTESWAP && (BYTE_ORDER == LITTLE_ENDIAN)
+/* little endian and PLATFORM_BYTESWAP defined */
+#define SWAP_BYTES_IN_WORD(w) LWIP_PLATFORM_HTONS(w)
+#else /* LWIP_PLATFORM_BYTESWAP && (BYTE_ORDER == LITTLE_ENDIAN) */
+/* can't use htons on big endian (or PLATFORM_BYTESWAP not defined)... */
+#define SWAP_BYTES_IN_WORD(w) (((w) & 0xff) << 8) | (((w) & 0xff00) >> 8)
+#endif /* LWIP_PLATFORM_BYTESWAP && (BYTE_ORDER == LITTLE_ENDIAN)*/
+#endif /* SWAP_BYTES_IN_WORD */
+
+/** Split an u32_t in two u16_ts and add them up */
+#ifndef FOLD_U32T
+#define FOLD_U32T(u)          (((u) >> 16) + ((u) & 0x0000ffffUL))
+#endif
+
+#if LWIP_CHECKSUM_ON_COPY
+/** Function-like macro: same as MEMCPY but returns the checksum of copied data
+    as u16_t */
+#ifndef LWIP_CHKSUM_COPY
+#define LWIP_CHKSUM_COPY(dst, src, len) lwip_chksum_copy(dst, src, len)
+#ifndef LWIP_CHKSUM_COPY_ALGORITHM
+#define LWIP_CHKSUM_COPY_ALGORITHM 1
+#endif /* LWIP_CHKSUM_COPY_ALGORITHM */
+#endif /* LWIP_CHKSUM_COPY */
+#else /* LWIP_CHECKSUM_ON_COPY */
+#define LWIP_CHKSUM_COPY_ALGORITHM 0
+#endif /* LWIP_CHECKSUM_ON_COPY */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+u16_t inet_chksum(void *dataptr, u16_t len)ICACHE_FLASH_ATTR;
+u16_t inet_chksum_pbuf(struct pbuf *p)ICACHE_FLASH_ATTR;
+u16_t inet_chksum_pseudo(struct pbuf *p,
+       ip_addr_t *src, ip_addr_t *dest,
+       u8_t proto, u16_t proto_len)ICACHE_FLASH_ATTR;
+u16_t inet_chksum_pseudo_partial(struct pbuf *p,
+       ip_addr_t *src, ip_addr_t *dest,
+       u8_t proto, u16_t proto_len, u16_t chksum_len)ICACHE_FLASH_ATTR;
+#if LWIP_CHKSUM_COPY_ALGORITHM
+u16_t lwip_chksum_copy(void *dst, const void *src, u16_t len)ICACHE_FLASH_ATTR;
+#endif /* LWIP_CHKSUM_COPY_ALGORITHM */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_INET_H__ */
+

app/include/lwip/init.h

@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_INIT_H__
+#define __LWIP_INIT_H__
+
+#include "lwip/opt.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** X.x.x: Major version of the stack */
+#define LWIP_VERSION_MAJOR      1U
+/** x.X.x: Minor version of the stack */
+#define LWIP_VERSION_MINOR      4U
+/** x.x.X: Revision of the stack */
+#define LWIP_VERSION_REVISION   0U
+/** For release candidates, this is set to 1..254
+  * For official releases, this is set to 255 (LWIP_RC_RELEASE)
+  * For development versions (CVS), this is set to 0 (LWIP_RC_DEVELOPMENT) */
+#define LWIP_VERSION_RC         2U
+
+/** LWIP_VERSION_RC is set to LWIP_RC_RELEASE for official releases */
+#define LWIP_RC_RELEASE         255U
+/** LWIP_VERSION_RC is set to LWIP_RC_DEVELOPMENT for CVS versions */
+#define LWIP_RC_DEVELOPMENT     0U
+
+#define LWIP_VERSION_IS_RELEASE     (LWIP_VERSION_RC == LWIP_RC_RELEASE)
+#define LWIP_VERSION_IS_DEVELOPMENT (LWIP_VERSION_RC == LWIP_RC_DEVELOPMENT)
+#define LWIP_VERSION_IS_RC          ((LWIP_VERSION_RC != LWIP_RC_RELEASE) && (LWIP_VERSION_RC != LWIP_RC_DEVELOPMENT))
+
+/** Provides the version of the stack */
+#define LWIP_VERSION   (LWIP_VERSION_MAJOR << 24   | LWIP_VERSION_MINOR << 16 | \
+                        LWIP_VERSION_REVISION << 8 | LWIP_VERSION_RC)
+
+/* Modules initialization */
+void lwip_init(void) ICACHE_FLASH_ATTR;
+//void lwip_init(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_INIT_H__ */

app/include/lwip/ip.h

@@ -0,0 +1,215 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_IP_H__
+#define __LWIP_IP_H__
+
+#include "lwip/opt.h"
+
+#include "lwip/def.h"
+#include "lwip/pbuf.h"
+#include "lwip/ip_addr.h"
+#include "lwip/err.h"
+#include "lwip/netif.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Currently, the function ip_output_if_opt() is only used with IGMP */
+#define IP_OPTIONS_SEND   LWIP_IGMP
+
+#define IP_HLEN 20
+
+#define IP_PROTO_ICMP    1
+#define IP_PROTO_IGMP    2
+#define IP_PROTO_UDP     17
+#define IP_PROTO_UDPLITE 136
+#define IP_PROTO_TCP     6
+
+/* This is passed as the destination address to ip_output_if (not
+   to ip_output), meaning that an IP header already is constructed
+   in the pbuf. This is used when TCP retransmits. */
+#ifdef IP_HDRINCL
+#undef IP_HDRINCL
+#endif /* IP_HDRINCL */
+#define IP_HDRINCL  NULL
+
+#if LWIP_NETIF_HWADDRHINT
+#define IP_PCB_ADDRHINT ;u8_t addr_hint
+#else
+#define IP_PCB_ADDRHINT
+#endif /* LWIP_NETIF_HWADDRHINT */
+
+/* This is the common part of all PCB types. It needs to be at the
+   beginning of a PCB type definition. It is located here so that
+   changes to this common part are made in one location instead of
+   having to change all PCB structs. */
+#define IP_PCB \
+  /* ip addresses in network byte order */ \
+  ip_addr_t local_ip; \
+  ip_addr_t remote_ip; \
+   /* Socket options */  \
+  u8_t so_options;      \
+   /* Type Of Service */ \
+  u8_t tos;              \
+  /* Time To Live */     \
+  u8_t ttl               \
+  /* link layer address resolution hint */ \
+  IP_PCB_ADDRHINT
+
+struct ip_pcb {
+/* Common members of all PCB types */
+  IP_PCB;
+};
+
+/*
+ * Option flags per-socket. These are the same like SO_XXX.
+ */
+/*#define SOF_DEBUG       (u8_t)0x01U     Unimplemented: turn on debugging info recording */
+#define SOF_ACCEPTCONN    (u8_t)0x02U  /* socket has had listen() */
+#define SOF_REUSEADDR     (u8_t)0x04U  /* allow local address reuse */
+#define SOF_KEEPALIVE     (u8_t)0x08U  /* keep connections alive */
+/*#define SOF_DONTROUTE   (u8_t)0x10U     Unimplemented: just use interface addresses */
+#define SOF_BROADCAST     (u8_t)0x20U  /* permit to send and to receive broadcast messages (see IP_SOF_BROADCAST option) */
+/*#define SOF_USELOOPBACK (u8_t)0x40U     Unimplemented: bypass hardware when possible */
+#define SOF_LINGER        (u8_t)0x80U  /* linger on close if data present */
+/*#define SOF_OOBINLINE   (u16_t)0x0100U     Unimplemented: leave received OOB data in line */
+/*#define SOF_REUSEPORT   (u16_t)0x0200U     Unimplemented: allow local address & port reuse */
+
+/* These flags are inherited (e.g. from a listen-pcb to a connection-pcb): */
+#define SOF_INHERITED   (SOF_REUSEADDR|SOF_KEEPALIVE|SOF_LINGER/*|SOF_DEBUG|SOF_DONTROUTE|SOF_OOBINLINE*/)
+
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct ip_hdr {
+  /* version / header length / type of service */
+  PACK_STRUCT_FIELD(u16_t _v_hl_tos);
+  /* total length */
+  PACK_STRUCT_FIELD(u16_t _len);
+  /* identification */
+  PACK_STRUCT_FIELD(u16_t _id);
+  /* fragment offset field */
+  PACK_STRUCT_FIELD(u16_t _offset);
+#define IP_RF 0x8000        /* reserved fragment flag */
+#define IP_DF 0x4000        /* dont fragment flag */
+#define IP_MF 0x2000        /* more fragments flag */
+#define IP_OFFMASK 0x1fff   /* mask for fragmenting bits */
+  /* time to live */
+  PACK_STRUCT_FIELD(u8_t _ttl);
+  /* protocol*/
+  PACK_STRUCT_FIELD(u8_t _proto);
+  /* checksum */
+  PACK_STRUCT_FIELD(u16_t _chksum);
+  /* source and destination IP addresses */
+  PACK_STRUCT_FIELD(ip_addr_p_t src);
+  PACK_STRUCT_FIELD(ip_addr_p_t dest); 
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+#define IPH_V(hdr)  (ntohs((hdr)->_v_hl_tos) >> 12)
+#define IPH_HL(hdr) ((ntohs((hdr)->_v_hl_tos) >> 8) & 0x0f)
+#define IPH_TOS(hdr) (ntohs((hdr)->_v_hl_tos) & 0xff)
+#define IPH_LEN(hdr) ((hdr)->_len)
+#define IPH_ID(hdr) ((hdr)->_id)
+#define IPH_OFFSET(hdr) ((hdr)->_offset)
+#define IPH_TTL(hdr) ((hdr)->_ttl)
+#define IPH_PROTO(hdr) ((hdr)->_proto)
+#define IPH_CHKSUM(hdr) ((hdr)->_chksum)
+
+#define IPH_VHLTOS_SET(hdr, v, hl, tos) (hdr)->_v_hl_tos = (htons(((v) << 12) | ((hl) << 8) | (tos)))
+#define IPH_LEN_SET(hdr, len) (hdr)->_len = (len)
+#define IPH_ID_SET(hdr, id) (hdr)->_id = (id)
+#define IPH_OFFSET_SET(hdr, off) (hdr)->_offset = (off)
+#define IPH_TTL_SET(hdr, ttl) (hdr)->_ttl = (u8_t)(ttl)
+#define IPH_PROTO_SET(hdr, proto) (hdr)->_proto = (u8_t)(proto)
+#define IPH_CHKSUM_SET(hdr, chksum) (hdr)->_chksum = (chksum)
+
+/** The interface that provided the packet for the current callback invocation. */
+extern struct netif *current_netif;
+/** Header of the input packet currently being processed. */
+extern const struct ip_hdr *current_header;
+/** Source IP address of current_header */
+extern ip_addr_t current_iphdr_src;
+/** Destination IP address of current_header */
+extern ip_addr_t current_iphdr_dest;
+
+#define ip_init() /* Compatibility define, not init needed. */
+struct netif *ip_route(ip_addr_t *dest)ICACHE_FLASH_ATTR;
+struct netif *ip_router(ip_addr_t *dest, ip_addr_t *source);
+
+err_t ip_input(struct pbuf *p, struct netif *inp)ICACHE_FLASH_ATTR;
+err_t ip_output(struct pbuf *p, ip_addr_t *src, ip_addr_t *dest,
+       u8_t ttl, u8_t tos, u8_t proto)ICACHE_FLASH_ATTR;
+err_t ip_output_if(struct pbuf *p, ip_addr_t *src, ip_addr_t *dest,
+       u8_t ttl, u8_t tos, u8_t proto,
+       struct netif *netif)ICACHE_FLASH_ATTR;
+#if LWIP_NETIF_HWADDRHINT
+err_t ip_output_hinted(struct pbuf *p, ip_addr_t *src, ip_addr_t *dest,
+       u8_t ttl, u8_t tos, u8_t proto, u8_t *addr_hint)ICACHE_FLASH_ATTR;
+#endif /* LWIP_NETIF_HWADDRHINT */
+#if IP_OPTIONS_SEND
+err_t ip_output_if_opt(struct pbuf *p, ip_addr_t *src, ip_addr_t *dest,
+       u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options,
+       u16_t optlen)ICACHE_FLASH_ATTR;
+#endif /* IP_OPTIONS_SEND */
+/** Get the interface that received the current packet.
+ * This function must only be called from a receive callback (udp_recv,
+ * raw_recv, tcp_accept). It will return NULL otherwise. */
+#define ip_current_netif()  (current_netif)
+/** Get the IP header of the current packet.
+ * This function must only be called from a receive callback (udp_recv,
+ * raw_recv, tcp_accept). It will return NULL otherwise. */
+#define ip_current_header() (current_header)
+/** Source IP address of current_header */
+#define ip_current_src_addr()  (&current_iphdr_src)
+/** Destination IP address of current_header */
+#define ip_current_dest_addr() (&current_iphdr_dest)
+
+#if IP_DEBUG
+void ip_debug_print(struct pbuf *p)ICACHE_FLASH_ATTR;
+#else
+#define ip_debug_print(p)
+#endif /* IP_DEBUG */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_IP_H__ */
+
+

app/include/lwip/ip_addr.h

@@ -0,0 +1,256 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_IP_ADDR_H__
+#define __LWIP_IP_ADDR_H__
+
+#include "lwip/opt.h"
+#include "lwip/def.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* This is the aligned version of ip_addr_t,
+   used as local variable, on the stack, etc. */
+struct ip_addr {
+  u32_t addr;
+};
+
+/* This is the packed version of ip_addr_t,
+   used in network headers that are itself packed */
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct ip_addr_packed {
+  PACK_STRUCT_FIELD(u32_t addr);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+/** ip_addr_t uses a struct for convenience only, so that the same defines can
+ * operate both on ip_addr_t as well as on ip_addr_p_t. */
+typedef struct ip_addr ip_addr_t;
+typedef struct ip_addr_packed ip_addr_p_t;
+
+/*
+ * struct ipaddr2 is used in the definition of the ARP packet format in
+ * order to support compilers that don't have structure packing.
+ */
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct ip_addr2 {
+  PACK_STRUCT_FIELD(u16_t addrw[2]);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+/* Forward declaration to not include netif.h */
+struct netif;
+
+extern const ip_addr_t ip_addr_any;
+extern const ip_addr_t ip_addr_broadcast;
+
+/** IP_ADDR_ can be used as a fixed IP address
+ *  for the wildcard and the broadcast address
+ */
+#define IP_ADDR_ANY         ((ip_addr_t *)&ip_addr_any)
+#define IP_ADDR_BROADCAST   ((ip_addr_t *)&ip_addr_broadcast)
+
+/** 255.255.255.255 */
+#define IPADDR_NONE         ((u32_t)0xffffffffUL)
+/** 127.0.0.1 */
+#define IPADDR_LOOPBACK     ((u32_t)0x7f000001UL)
+/** 0.0.0.0 */
+#define IPADDR_ANY          ((u32_t)0x00000000UL)
+/** 255.255.255.255 */
+#define IPADDR_BROADCAST    ((u32_t)0xffffffffUL)
+
+/* Definitions of the bits in an Internet address integer.
+
+   On subnets, host and network parts are found according to
+   the subnet mask, not these masks.  */
+#define IP_CLASSA(a)        ((((u32_t)(a)) & 0x80000000UL) == 0)
+#define IP_CLASSA_NET       0xff000000
+#define IP_CLASSA_NSHIFT    24
+#define IP_CLASSA_HOST      (0xffffffff & ~IP_CLASSA_NET)
+#define IP_CLASSA_MAX       128
+
+#define IP_CLASSB(a)        ((((u32_t)(a)) & 0xc0000000UL) == 0x80000000UL)
+#define IP_CLASSB_NET       0xffff0000
+#define IP_CLASSB_NSHIFT    16
+#define IP_CLASSB_HOST      (0xffffffff & ~IP_CLASSB_NET)
+#define IP_CLASSB_MAX       65536
+
+#define IP_CLASSC(a)        ((((u32_t)(a)) & 0xe0000000UL) == 0xc0000000UL)
+#define IP_CLASSC_NET       0xffffff00
+#define IP_CLASSC_NSHIFT    8
+#define IP_CLASSC_HOST      (0xffffffff & ~IP_CLASSC_NET)
+
+#define IP_CLASSD(a)        (((u32_t)(a) & 0xf0000000UL) == 0xe0000000UL)
+#define IP_CLASSD_NET       0xf0000000          /* These ones aren't really */
+#define IP_CLASSD_NSHIFT    28                  /*   net and host fields, but */
+#define IP_CLASSD_HOST      0x0fffffff          /*   routing needn't know. */
+#define IP_MULTICAST(a)     IP_CLASSD(a)
+
+#define IP_EXPERIMENTAL(a)  (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL)
+#define IP_BADCLASS(a)      (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL)
+
+#define IP_LOOPBACKNET      127                 /* official! */
+
+
+#if BYTE_ORDER == BIG_ENDIAN
+/** Set an IP address given by the four byte-parts */
+#define IP4_ADDR(ipaddr, a,b,c,d) \
+        (ipaddr)->addr = ((u32_t)((a) & 0xff) << 24) | \
+                         ((u32_t)((b) & 0xff) << 16) | \
+                         ((u32_t)((c) & 0xff) << 8)  | \
+                          (u32_t)((d) & 0xff)
+#else
+/** Set an IP address given by the four byte-parts.
+    Little-endian version that prevents the use of htonl. */
+#define IP4_ADDR(ipaddr, a,b,c,d) \
+        (ipaddr)->addr = ((u32_t)((d) & 0xff) << 24) | \
+                         ((u32_t)((c) & 0xff) << 16) | \
+                         ((u32_t)((b) & 0xff) << 8)  | \
+                          (u32_t)((a) & 0xff)
+#endif
+
+/** MEMCPY-like copying of IP addresses where addresses are known to be
+ * 16-bit-aligned if the port is correctly configured (so a port could define
+ * this to copying 2 u16_t's) - no NULL-pointer-checking needed. */
+#ifndef IPADDR2_COPY
+#define IPADDR2_COPY(dest, src) SMEMCPY(dest, src, sizeof(ip_addr_t))
+#endif
+
+/** Copy IP address - faster than ip_addr_set: no NULL check */
+#define ip_addr_copy(dest, src) ((dest).addr = (src).addr)
+/** Safely copy one IP address to another (src may be NULL) */
+#define ip_addr_set(dest, src) ((dest)->addr = \
+                                    ((src) == NULL ? 0 : \
+                                    (src)->addr))
+/** Set complete address to zero */
+#define ip_addr_set_zero(ipaddr)      ((ipaddr)->addr = 0)
+/** Set address to IPADDR_ANY (no need for htonl()) */
+#define ip_addr_set_any(ipaddr)       ((ipaddr)->addr = IPADDR_ANY)
+/** Set address to loopback address */
+#define ip_addr_set_loopback(ipaddr)  ((ipaddr)->addr = PP_HTONL(IPADDR_LOOPBACK))
+/** Safely copy one IP address to another and change byte order
+ * from host- to network-order. */
+#define ip_addr_set_hton(dest, src) ((dest)->addr = \
+                               ((src) == NULL ? 0:\
+                               htonl((src)->addr)))
+/** IPv4 only: set the IP address given as an u32_t */
+#define ip4_addr_set_u32(dest_ipaddr, src_u32) ((dest_ipaddr)->addr = (src_u32))
+/** IPv4 only: get the IP address as an u32_t */
+#define ip4_addr_get_u32(src_ipaddr) ((src_ipaddr)->addr)
+
+/** Get the network address by combining host address with netmask */
+#define ip_addr_get_network(target, host, netmask) ((target)->addr = ((host)->addr) & ((netmask)->addr))
+
+/**
+ * Determine if two address are on the same network.
+ *
+ * @arg addr1 IP address 1
+ * @arg addr2 IP address 2
+ * @arg mask network identifier mask
+ * @return !0 if the network identifiers of both address match
+ */
+#define ip_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \
+                                              (mask)->addr) == \
+                                             ((addr2)->addr & \
+                                              (mask)->addr))
+#define ip_addr_cmp(addr1, addr2) ((addr1)->addr == (addr2)->addr)
+
+#define ip_addr_isany(addr1) ((addr1) == NULL || (addr1)->addr == IPADDR_ANY)
+
+#define ip_addr_isbroadcast(ipaddr, netif) ip4_addr_isbroadcast((ipaddr)->addr, (netif))
+u8_t ip4_addr_isbroadcast(u32_t addr, const struct netif *netif)ICACHE_FLASH_ATTR;
+
+#define ip_addr_netmask_valid(netmask) ip4_addr_netmask_valid((netmask)->addr)
+u8_t ip4_addr_netmask_valid(u32_t netmask)ICACHE_FLASH_ATTR;
+
+#define ip_addr_ismulticast(addr1) (((addr1)->addr & PP_HTONL(0xf0000000UL)) == PP_HTONL(0xe0000000UL))
+
+#define ip_addr_islinklocal(addr1) (((addr1)->addr & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xa9fe0000UL))
+
+#define ip_addr_debug_print(debug, ipaddr) \
+  LWIP_DEBUGF(debug, ("%"U16_F".%"U16_F".%"U16_F".%"U16_F,             \
+                      ipaddr != NULL ? ip4_addr1_16(ipaddr) : 0,       \
+                      ipaddr != NULL ? ip4_addr2_16(ipaddr) : 0,       \
+                      ipaddr != NULL ? ip4_addr3_16(ipaddr) : 0,       \
+                      ipaddr != NULL ? ip4_addr4_16(ipaddr) : 0))
+
+/* Get one byte from the 4-byte address */
+#define ip4_addr1(ipaddr) (((u8_t*)(ipaddr))[0])
+#define ip4_addr2(ipaddr) (((u8_t*)(ipaddr))[1])
+#define ip4_addr3(ipaddr) (((u8_t*)(ipaddr))[2])
+#define ip4_addr4(ipaddr) (((u8_t*)(ipaddr))[3])
+/* These are cast to u16_t, with the intent that they are often arguments
+ * to printf using the U16_F format from cc.h. */
+#define ip4_addr1_16(ipaddr) ((u16_t)ip4_addr1(ipaddr))
+#define ip4_addr2_16(ipaddr) ((u16_t)ip4_addr2(ipaddr))
+#define ip4_addr3_16(ipaddr) ((u16_t)ip4_addr3(ipaddr))
+#define ip4_addr4_16(ipaddr) ((u16_t)ip4_addr4(ipaddr))
+
+/** For backwards compatibility */
+#define ip_ntoa(ipaddr)  ipaddr_ntoa(ipaddr)
+
+u32_t ipaddr_addr(const char *cp)ICACHE_FLASH_ATTR;
+int ipaddr_aton(const char *cp, ip_addr_t *addr)ICACHE_FLASH_ATTR;
+/** returns ptr to static buffer; not reentrant! */
+char *ipaddr_ntoa(const ip_addr_t *addr)ICACHE_FLASH_ATTR;
+char *ipaddr_ntoa_r(const ip_addr_t *addr, char *buf, int buflen)ICACHE_FLASH_ATTR;
+
+#define IP2STR(ipaddr) ip4_addr1_16(ipaddr), \
+    ip4_addr2_16(ipaddr), \
+    ip4_addr3_16(ipaddr), \
+    ip4_addr4_16(ipaddr)
+
+#define IPSTR "%d.%d.%d.%d"
+
+struct ip_info {
+    struct ip_addr ip;
+    struct ip_addr netmask;
+    struct ip_addr gw;
+};
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_IP_ADDR_H__ */

app/include/lwip/ip_frag.h

@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Jani Monoses <jani@iv.ro>
+ *
+ */
+
+#ifndef __LWIP_IP_FRAG_H__
+#define __LWIP_IP_FRAG_H__
+
+#include "lwip/opt.h"
+#include "lwip/err.h"
+#include "lwip/pbuf.h"
+#include "lwip/netif.h"
+#include "lwip/ip_addr.h"
+#include "lwip/ip.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if IP_REASSEMBLY
+/* The IP reassembly timer interval in milliseconds. */
+#define IP_TMR_INTERVAL 1000
+
+/* IP reassembly helper struct.
+ * This is exported because memp needs to know the size.
+ */
+struct ip_reassdata {
+  struct ip_reassdata *next;
+  struct pbuf *p;
+  struct ip_hdr iphdr;
+  u16_t datagram_len;
+  u8_t flags;
+  u8_t timer;
+};
+
+void ip_reass_init(void)ICACHE_FLASH_ATTR;
+void ip_reass_tmr(void)ICACHE_FLASH_ATTR;
+struct pbuf * ip_reass(struct pbuf *p)ICACHE_FLASH_ATTR;
+#endif /* IP_REASSEMBLY */
+
+#if IP_FRAG
+#if !IP_FRAG_USES_STATIC_BUF && !LWIP_NETIF_TX_SINGLE_PBUF
+/** A custom pbuf that holds a reference to another pbuf, which is freed
+ * when this custom pbuf is freed. This is used to create a custom PBUF_REF
+ * that points into the original pbuf. */
+struct pbuf_custom_ref {
+  /** 'base class' */
+  struct pbuf_custom pc;
+  /** pointer to the original pbuf that is referenced */
+  struct pbuf *original;
+};
+#endif /* !IP_FRAG_USES_STATIC_BUF && !LWIP_NETIF_TX_SINGLE_PBUF */
+
+err_t ip_frag(struct pbuf *p, struct netif *netif, ip_addr_t *dest)ICACHE_FLASH_ATTR;
+#endif /* IP_FRAG */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_IP_FRAG_H__ */

app/include/lwip/mem.h

@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_MEM_H__
+#define __LWIP_MEM_H__
+
+#include "lwip/opt.h"
+#include "mem_manager.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if MEM_LIBC_MALLOC
+
+#include <stddef.h> /* for size_t */
+
+typedef size_t mem_size_t;
+
+/* aliases for C library malloc() */
+#define mem_init()
+/* in case C library malloc() needs extra protection,
+ * allow these defines to be overridden.
+ */
+#ifndef mem_free
+#define mem_free vPortFree
+#endif
+#ifndef mem_malloc
+#define mem_malloc pvPortMalloc
+#endif
+#ifndef mem_calloc
+#define mem_calloc pvPortCalloc
+#endif
+#ifndef mem_realloc
+#define mem_realloc pvPortRealloc
+#endif
+#ifndef mem_zalloc
+#define mem_zalloc pvPortZalloc
+#endif
+
+#ifndef os_malloc
+#define os_malloc(s) mem_malloc((s))
+#endif
+#ifndef os_realloc
+#define os_realloc(p, s) mem_realloc((p), (s))
+#endif
+#ifndef os_zalloc
+#define os_zalloc(s) mem_zalloc((s))
+#endif
+#ifndef os_free
+#define os_free(p) mem_free((p))
+#endif
+
+/* Since there is no C library allocation function to shrink memory without
+   moving it, define this to nothing. */
+#ifndef mem_trim
+#define mem_trim(mem, size) (mem)
+#endif
+#else /* MEM_LIBC_MALLOC */
+
+/* MEM_SIZE would have to be aligned, but using 64000 here instead of
+ * 65535 leaves some room for alignment...
+ */
+#if MEM_SIZE > 64000l
+typedef u32_t mem_size_t;
+#define MEM_SIZE_F U32_F
+#else
+typedef u16_t mem_size_t;
+#define MEM_SIZE_F U16_F
+#endif /* MEM_SIZE > 64000 */
+
+#if MEM_USE_POOLS
+/** mem_init is not used when using pools instead of a heap */
+#define mem_init()
+/** mem_trim is not used when using pools instead of a heap:
+    we can't free part of a pool element and don't want to copy the rest */
+#define mem_trim(mem, size) (mem)
+#else /* MEM_USE_POOLS */
+/* lwIP alternative malloc */
+void  mem_init(void)ICACHE_FLASH_ATTR;
+void *mem_trim(void *mem, mem_size_t size)ICACHE_FLASH_ATTR;
+#endif /* MEM_USE_POOLS */
+void *mem_malloc(mem_size_t size)ICACHE_FLASH_ATTR;
+void *mem_calloc(mem_size_t count, mem_size_t size)ICACHE_FLASH_ATTR;
+void  mem_free(void *mem)ICACHE_FLASH_ATTR;
+#endif /* MEM_LIBC_MALLOC */
+
+/** Calculate memory size for an aligned buffer - returns the next highest
+ * multiple of MEM_ALIGNMENT (e.g. LWIP_MEM_ALIGN_SIZE(3) and
+ * LWIP_MEM_ALIGN_SIZE(4) will both yield 4 for MEM_ALIGNMENT == 4).
+ */
+#ifndef LWIP_MEM_ALIGN_SIZE
+#define LWIP_MEM_ALIGN_SIZE(size) (((size) + MEM_ALIGNMENT - 1) & ~(MEM_ALIGNMENT-1))
+#endif
+
+/** Calculate safe memory size for an aligned buffer when using an unaligned
+ * type as storage. This includes a safety-margin on (MEM_ALIGNMENT - 1) at the
+ * start (e.g. if buffer is u8_t[] and actual data will be u32_t*)
+ */
+#ifndef LWIP_MEM_ALIGN_BUFFER
+#define LWIP_MEM_ALIGN_BUFFER(size) (((size) + MEM_ALIGNMENT - 1))
+#endif
+
+/** Align a memory pointer to the alignment defined by MEM_ALIGNMENT
+ * so that ADDR % MEM_ALIGNMENT == 0
+ */
+#ifndef LWIP_MEM_ALIGN
+#define LWIP_MEM_ALIGN(addr) ((void *)(((mem_ptr_t)(addr) + MEM_ALIGNMENT - 1) & ~(mem_ptr_t)(MEM_ALIGNMENT-1)))
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_MEM_H__ */

app/include/lwip/memp.h

@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+
+#ifndef __LWIP_MEMP_H__
+#define __LWIP_MEMP_H__
+
+#include "lwip/opt.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Create the list of all memory pools managed by memp. MEMP_MAX represents a NULL pool at the end */
+typedef enum {
+#define LWIP_MEMPOOL(name,num,size,desc, attr)  MEMP_##name,
+#include "lwip/memp_std.h"
+  MEMP_MAX
+} memp_t;
+
+#if MEM_USE_POOLS
+/* Use a helper type to get the start and end of the user "memory pools" for mem_malloc */
+typedef enum {
+    /* Get the first (via:
+       MEMP_POOL_HELPER_START = ((u8_t) 1*MEMP_POOL_A + 0*MEMP_POOL_B + 0*MEMP_POOL_C + 0)*/
+    MEMP_POOL_HELPER_FIRST = ((u8_t)
+#define LWIP_MEMPOOL(name,num,size,desc)
+#define LWIP_MALLOC_MEMPOOL_START 1
+#define LWIP_MALLOC_MEMPOOL(num, size) * MEMP_POOL_##size + 0
+#define LWIP_MALLOC_MEMPOOL_END
+#include "lwip/memp_std.h"
+    ) ,
+    /* Get the last (via:
+       MEMP_POOL_HELPER_END = ((u8_t) 0 + MEMP_POOL_A*0 + MEMP_POOL_B*0 + MEMP_POOL_C*1) */
+    MEMP_POOL_HELPER_LAST = ((u8_t)
+#define LWIP_MEMPOOL(name,num,size,desc)
+#define LWIP_MALLOC_MEMPOOL_START
+#define LWIP_MALLOC_MEMPOOL(num, size) 0 + MEMP_POOL_##size *
+#define LWIP_MALLOC_MEMPOOL_END 1
+#include "lwip/memp_std.h"
+    )
+} memp_pool_helper_t;
+
+/* The actual start and stop values are here (cast them over)
+   We use this helper type and these defines so we can avoid using const memp_t values */
+#define MEMP_POOL_FIRST ((memp_t) MEMP_POOL_HELPER_FIRST)
+#define MEMP_POOL_LAST   ((memp_t) MEMP_POOL_HELPER_LAST)
+#endif /* MEM_USE_POOLS */
+
+#if MEMP_MEM_MALLOC || MEM_USE_POOLS
+extern const u16_t memp_sizes[MEMP_MAX];
+#endif /* MEMP_MEM_MALLOC || MEM_USE_POOLS */
+
+#if MEMP_MEM_MALLOC
+
+#include "mem.h"
+
+#define memp_init()
+#define memp_malloc(type)     mem_malloc(memp_sizes[type])
+#define memp_free(type, mem)  mem_free(mem)
+
+#else /* MEMP_MEM_MALLOC */
+
+#if MEM_USE_POOLS
+/** This structure is used to save the pool one element came from. */
+struct memp_malloc_helper
+{
+   memp_t poolnr;
+};
+#endif /* MEM_USE_POOLS */
+
+void  memp_init(void)ICACHE_FLASH_ATTR;
+
+#if MEMP_OVERFLOW_CHECK
+void *memp_malloc_fn(memp_t type, const char* file, const int line)ICACHE_FLASH_ATTR;
+#define memp_malloc(t) memp_malloc_fn((t), __FILE__, __LINE__)
+#else
+void *memp_malloc(memp_t type)ICACHE_FLASH_ATTR;
+#endif
+void  memp_free(memp_t type, void *mem)ICACHE_FLASH_ATTR;
+
+#endif /* MEMP_MEM_MALLOC */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_MEMP_H__ */

app/include/lwip/memp_std.h

@@ -0,0 +1,126 @@
+/*
+ * SETUP: Make sure we define everything we will need.
+ *
+ * We have create three types of pools:
+ *   1) MEMPOOL - standard pools
+ *   2) MALLOC_MEMPOOL - to be used by mem_malloc in mem.c
+ *   3) PBUF_MEMPOOL - a mempool of pbuf's, so include space for the pbuf struct
+ *
+ * If the include'r doesn't require any special treatment of each of the types
+ * above, then will declare #2 & #3 to be just standard mempools.
+ */
+#ifndef LWIP_MALLOC_MEMPOOL
+/* This treats "malloc pools" just like any other pool.
+   The pools are a little bigger to provide 'size' as the amount of user data. */
+#define LWIP_MALLOC_MEMPOOL(num, size) LWIP_MEMPOOL(POOL_##size, num, (size + sizeof(struct memp_malloc_helper)), "MALLOC_"#size, attr)
+#define LWIP_MALLOC_MEMPOOL_START
+#define LWIP_MALLOC_MEMPOOL_END
+#endif /* LWIP_MALLOC_MEMPOOL */ 
+
+#ifndef LWIP_PBUF_MEMPOOL
+/* This treats "pbuf pools" just like any other pool.
+ * Allocates buffers for a pbuf struct AND a payload size */
+#define LWIP_PBUF_MEMPOOL(name, num, payload, desc, attr) LWIP_MEMPOOL(name, num, (MEMP_ALIGN_SIZE(sizeof(struct pbuf)) + MEMP_ALIGN_SIZE(payload)), desc, attr)
+#endif /* LWIP_PBUF_MEMPOOL */
+
+
+/*
+ * A list of internal pools used by LWIP.
+ *
+ * LWIP_MEMPOOL(pool_name, number_elements, element_size, pool_description)
+ *     creates a pool name MEMP_pool_name. description is used in stats.c
+ */
+#if LWIP_RAW
+LWIP_MEMPOOL(RAW_PCB,        MEMP_NUM_RAW_PCB,         sizeof(struct raw_pcb),        "RAW_PCB", DMEM_ATTR)
+#endif /* LWIP_RAW */
+
+#if LWIP_UDP
+LWIP_MEMPOOL(UDP_PCB,        MEMP_NUM_UDP_PCB,         sizeof(struct udp_pcb),        "UDP_PCB", DMEM_ATTR)
+#endif /* LWIP_UDP */
+
+#if LWIP_TCP
+LWIP_MEMPOOL(TCP_PCB,        MEMP_NUM_TCP_PCB,         sizeof(struct tcp_pcb),        "TCP_PCB", DMEM_ATTR)
+LWIP_MEMPOOL(TCP_PCB_LISTEN, MEMP_NUM_TCP_PCB_LISTEN,  sizeof(struct tcp_pcb_listen), "TCP_PCB_LISTEN", DMEM_ATTR)
+LWIP_MEMPOOL(TCP_SEG,        MEMP_NUM_TCP_SEG,         sizeof(struct tcp_seg),        "TCP_SEG", DMEM_ATTR)
+#endif /* LWIP_TCP */
+
+#if IP_REASSEMBLY
+LWIP_MEMPOOL(REASSDATA,      MEMP_NUM_REASSDATA,       sizeof(struct ip_reassdata),   "REASSDATA", DMEM_ATTR)
+#endif /* IP_REASSEMBLY */
+#if IP_FRAG && !IP_FRAG_USES_STATIC_BUF && !LWIP_NETIF_TX_SINGLE_PBUF
+LWIP_MEMPOOL(FRAG_PBUF,      MEMP_NUM_FRAG_PBUF,       sizeof(struct pbuf_custom_ref),"FRAG_PBUF", DMEM_ATTR)
+#endif /* IP_FRAG && !IP_FRAG_USES_STATIC_BUF && !LWIP_NETIF_TX_SINGLE_PBUF */
+
+#if LWIP_NETCONN
+LWIP_MEMPOOL(NETBUF,         MEMP_NUM_NETBUF,          sizeof(struct netbuf),         "NETBUF")
+LWIP_MEMPOOL(NETCONN,        MEMP_NUM_NETCONN,         sizeof(struct netconn),        "NETCONN")
+#endif /* LWIP_NETCONN */
+
+#if NO_SYS==0
+LWIP_MEMPOOL(TCPIP_MSG_API,  MEMP_NUM_TCPIP_MSG_API,   sizeof(struct tcpip_msg),      "TCPIP_MSG_API")
+#if !LWIP_TCPIP_CORE_LOCKING_INPUT
+LWIP_MEMPOOL(TCPIP_MSG_INPKT,MEMP_NUM_TCPIP_MSG_INPKT, sizeof(struct tcpip_msg),      "TCPIP_MSG_INPKT")
+#endif /* !LWIP_TCPIP_CORE_LOCKING_INPUT */
+#endif /* NO_SYS==0 */
+
+#if ARP_QUEUEING
+LWIP_MEMPOOL(ARP_QUEUE,      MEMP_NUM_ARP_QUEUE,       sizeof(struct etharp_q_entry), "ARP_QUEUE", DMEM_ATTR)
+#endif /* ARP_QUEUEING */
+
+#if LWIP_IGMP
+LWIP_MEMPOOL(IGMP_GROUP,     MEMP_NUM_IGMP_GROUP,      sizeof(struct igmp_group), "IGMP_GROUP", DMEM_ATTR)
+#endif /* LWIP_IGMP */
+
+#if (!NO_SYS || (NO_SYS && !NO_SYS_NO_TIMERS)) /* LWIP_TIMERS */
+LWIP_MEMPOOL(SYS_TIMEOUT,    MEMP_NUM_SYS_TIMEOUT,     sizeof(struct sys_timeo),      "SYS_TIMEOUT", DMEM_ATTR)
+#endif /* LWIP_TIMERS */
+
+#if LWIP_SNMP
+LWIP_MEMPOOL(SNMP_ROOTNODE,  MEMP_NUM_SNMP_ROOTNODE,   sizeof(struct mib_list_rootnode), "SNMP_ROOTNODE")
+LWIP_MEMPOOL(SNMP_NODE,      MEMP_NUM_SNMP_NODE,       sizeof(struct mib_list_node),     "SNMP_NODE")
+LWIP_MEMPOOL(SNMP_VARBIND,   MEMP_NUM_SNMP_VARBIND,    sizeof(struct snmp_varbind),      "SNMP_VARBIND")
+LWIP_MEMPOOL(SNMP_VALUE,     MEMP_NUM_SNMP_VALUE,      SNMP_MAX_VALUE_SIZE,              "SNMP_VALUE")
+#endif /* LWIP_SNMP */
+#if LWIP_DNS && LWIP_SOCKET
+LWIP_MEMPOOL(NETDB,          MEMP_NUM_NETDB,           NETDB_ELEM_SIZE,               "NETDB")
+#endif /* LWIP_DNS && LWIP_SOCKET */
+#if LWIP_DNS && DNS_LOCAL_HOSTLIST && DNS_LOCAL_HOSTLIST_IS_DYNAMIC
+LWIP_MEMPOOL(LOCALHOSTLIST,  MEMP_NUM_LOCALHOSTLIST,   LOCALHOSTLIST_ELEM_SIZE,       "LOCALHOSTLIST")
+#endif /* LWIP_DNS && DNS_LOCAL_HOSTLIST && DNS_LOCAL_HOSTLIST_IS_DYNAMIC */
+#if PPP_SUPPORT && PPPOE_SUPPORT
+LWIP_MEMPOOL(PPPOE_IF,      MEMP_NUM_PPPOE_INTERFACES, sizeof(struct pppoe_softc),    "PPPOE_IF")
+#endif /* PPP_SUPPORT && PPPOE_SUPPORT */
+
+/*
+ * A list of pools of pbuf's used by LWIP.
+ *
+ * LWIP_PBUF_MEMPOOL(pool_name, number_elements, pbuf_payload_size, pool_description)
+ *     creates a pool name MEMP_pool_name. description is used in stats.c
+ *     This allocates enough space for the pbuf struct and a payload.
+ *     (Example: pbuf_payload_size=0 allocates only size for the struct)
+ */
+LWIP_PBUF_MEMPOOL(PBUF,      MEMP_NUM_PBUF,            0,                             "PBUF_REF/ROM", DMEM_ATTR)
+
+/* XXX:  need to align to 4 byte as memp strcut is 4-byte long.  otherwise will crash */
+#define LWIP_MEM_ALIGN4_SIZE(size) (((size) + 4 - 1) & ~(4-1))
+
+LWIP_PBUF_MEMPOOL(PBUF_POOL, PBUF_POOL_SIZE, LWIP_MEM_ALIGN4_SIZE(PBUF_POOL_BUFSIZE), "PBUF_POOL", DMEM_ATTR)
+
+
+/*
+ * Allow for user-defined pools; this must be explicitly set in lwipopts.h
+ * since the default is to NOT look for lwippools.h
+ */
+#if MEMP_USE_CUSTOM_POOLS
+#include "lwippools.h"
+#endif /* MEMP_USE_CUSTOM_POOLS */
+
+/*
+ * REQUIRED CLEANUP: Clear up so we don't get "multiply defined" error later
+ * (#undef is ignored for something that is not defined)
+ */
+#undef LWIP_MEMPOOL
+#undef LWIP_MALLOC_MEMPOOL
+#undef LWIP_MALLOC_MEMPOOL_START
+#undef LWIP_MALLOC_MEMPOOL_END
+#undef LWIP_PBUF_MEMPOOL

app/include/lwip/netbuf.h

@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_NETBUF_H__
+#define __LWIP_NETBUF_H__
+
+#include "lwip/opt.h"
+#include "lwip/pbuf.h"
+#include "lwip/ip_addr.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** This netbuf has dest-addr/port set */
+#define NETBUF_FLAG_DESTADDR    0x01
+/** This netbuf includes a checksum */
+#define NETBUF_FLAG_CHKSUM      0x02
+
+struct netbuf {
+  struct pbuf *p, *ptr;
+  ip_addr_t addr;
+  u16_t port;
+#if LWIP_NETBUF_RECVINFO || LWIP_CHECKSUM_ON_COPY
+#if LWIP_CHECKSUM_ON_COPY
+  u8_t flags;
+#endif /* LWIP_CHECKSUM_ON_COPY */
+  u16_t toport_chksum;
+#if LWIP_NETBUF_RECVINFO
+  ip_addr_t toaddr;
+#endif /* LWIP_NETBUF_RECVINFO */
+#endif /* LWIP_NETBUF_RECVINFO || LWIP_CHECKSUM_ON_COPY */
+};
+
+/* Network buffer functions: */
+struct netbuf *   netbuf_new      (void)ICACHE_FLASH_ATTR;
+void              netbuf_delete   (struct netbuf *buf)ICACHE_FLASH_ATTR;
+void *            netbuf_alloc    (struct netbuf *buf, u16_t size)ICACHE_FLASH_ATTR;
+void              netbuf_free     (struct netbuf *buf)ICACHE_FLASH_ATTR;
+err_t             netbuf_ref      (struct netbuf *buf,
+                                   const void *dataptr, u16_t size)ICACHE_FLASH_ATTR;
+void              netbuf_chain    (struct netbuf *head,
+           struct netbuf *tail)ICACHE_FLASH_ATTR;
+
+err_t             netbuf_data     (struct netbuf *buf,
+                                   void **dataptr, u16_t *len)ICACHE_FLASH_ATTR;
+s8_t              netbuf_next     (struct netbuf *buf)ICACHE_FLASH_ATTR;
+void              netbuf_first    (struct netbuf *buf)ICACHE_FLASH_ATTR;
+
+
+#define netbuf_copy_partial(buf, dataptr, len, offset) \
+  pbuf_copy_partial((buf)->p, (dataptr), (len), (offset))
+#define netbuf_copy(buf,dataptr,len) netbuf_copy_partial(buf, dataptr, len, 0)
+#define netbuf_take(buf, dataptr, len) pbuf_take((buf)->p, dataptr, len)
+#define netbuf_len(buf)              ((buf)->p->tot_len)
+#define netbuf_fromaddr(buf)         (&((buf)->addr))
+#define netbuf_set_fromaddr(buf, fromaddr) ip_addr_set((&(buf)->addr), fromaddr)
+#define netbuf_fromport(buf)         ((buf)->port)
+#if LWIP_NETBUF_RECVINFO
+#define netbuf_destaddr(buf)         (&((buf)->toaddr))
+#define netbuf_set_destaddr(buf, destaddr) ip_addr_set((&(buf)->addr), destaddr)
+#define netbuf_destport(buf)         (((buf)->flags & NETBUF_FLAG_DESTADDR) ? (buf)->toport_chksum : 0)
+#endif /* LWIP_NETBUF_RECVINFO */
+#if LWIP_CHECKSUM_ON_COPY
+#define netbuf_set_chksum(buf, chksum) do { (buf)->flags = NETBUF_FLAG_CHKSUM; \
+                                            (buf)->toport_chksum = chksum; } while(0)
+#endif /* LWIP_CHECKSUM_ON_COPY */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_NETBUF_H__ */

app/include/lwip/netdb.h

@@ -0,0 +1,124 @@
+/*
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Simon Goldschmidt
+ *
+ */
+#ifndef __LWIP_NETDB_H__
+#define __LWIP_NETDB_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_DNS && LWIP_SOCKET
+
+#include <stddef.h> /* for size_t */
+
+#include "lwip/inet.h"
+#include "lwip/sockets.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* some rarely used options */
+#ifndef LWIP_DNS_API_DECLARE_H_ERRNO
+#define LWIP_DNS_API_DECLARE_H_ERRNO 1
+#endif
+
+#ifndef LWIP_DNS_API_DEFINE_ERRORS
+#define LWIP_DNS_API_DEFINE_ERRORS 1
+#endif
+
+#ifndef LWIP_DNS_API_DECLARE_STRUCTS
+#define LWIP_DNS_API_DECLARE_STRUCTS 1
+#endif
+
+#if LWIP_DNS_API_DEFINE_ERRORS
+/** Errors used by the DNS API functions, h_errno can be one of them */
+#define EAI_NONAME      200
+#define EAI_SERVICE     201
+#define EAI_FAIL        202
+#define EAI_MEMORY      203
+
+#define HOST_NOT_FOUND  210
+#define NO_DATA         211
+#define NO_RECOVERY     212
+#define TRY_AGAIN       213
+#endif /* LWIP_DNS_API_DEFINE_ERRORS */
+
+#if LWIP_DNS_API_DECLARE_STRUCTS
+struct hostent {
+    char  *h_name;      /* Official name of the host. */
+    char **h_aliases;   /* A pointer to an array of pointers to alternative host names,
+                           terminated by a null pointer. */
+    int    h_addrtype;  /* Address type. */
+    int    h_length;    /* The length, in bytes, of the address. */
+    char **h_addr_list; /* A pointer to an array of pointers to network addresses (in
+                           network byte order) for the host, terminated by a null pointer. */
+#define h_addr h_addr_list[0] /* for backward compatibility */
+};
+
+struct addrinfo {
+    int               ai_flags;      /* Input flags. */
+    int               ai_family;     /* Address family of socket. */
+    int               ai_socktype;   /* Socket type. */
+    int               ai_protocol;   /* Protocol of socket. */
+    socklen_t         ai_addrlen;    /* Length of socket address. */
+    struct sockaddr  *ai_addr;       /* Socket address of socket. */
+    char             *ai_canonname;  /* Canonical name of service location. */
+    struct addrinfo  *ai_next;       /* Pointer to next in list. */
+};
+#endif /* LWIP_DNS_API_DECLARE_STRUCTS */
+
+#if LWIP_DNS_API_DECLARE_H_ERRNO
+/* application accessable error code set by the DNS API functions */
+extern int h_errno;
+#endif /* LWIP_DNS_API_DECLARE_H_ERRNO*/
+
+struct hostent *lwip_gethostbyname(const char *name);
+int lwip_gethostbyname_r(const char *name, struct hostent *ret, char *buf,
+                size_t buflen, struct hostent **result, int *h_errnop);
+void lwip_freeaddrinfo(struct addrinfo *ai);
+int lwip_getaddrinfo(const char *nodename,
+       const char *servname,
+       const struct addrinfo *hints,
+       struct addrinfo **res);
+
+#if LWIP_COMPAT_SOCKETS
+#define gethostbyname(name) lwip_gethostbyname(name)
+#define gethostbyname_r(name, ret, buf, buflen, result, h_errnop) \
+       lwip_gethostbyname_r(name, ret, buf, buflen, result, h_errnop)
+#define freeaddrinfo(addrinfo) lwip_freeaddrinfo(addrinfo)
+#define getaddrinfo(nodname, servname, hints, res) \
+       lwip_getaddrinfo(nodname, servname, hints, res)
+#endif /* LWIP_COMPAT_SOCKETS */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_DNS && LWIP_SOCKET */
+
+#endif /* __LWIP_NETDB_H__ */

app/include/lwip/netif.h

@@ -0,0 +1,315 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_NETIF_H__
+#define __LWIP_NETIF_H__
+
+#include "lwip/opt.h"
+
+#define ENABLE_LOOPBACK (LWIP_NETIF_LOOPBACK || LWIP_HAVE_LOOPIF)
+
+#include "lwip/err.h"
+
+#include "lwip/ip_addr.h"
+
+#include "lwip/def.h"
+#include "lwip/pbuf.h"
+#if LWIP_DHCP
+struct dhcp;
+#endif
+#if LWIP_AUTOIP
+struct autoip;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Throughout this file, IP addresses are expected to be in
+ * the same byte order as in IP_PCB. */
+
+/** must be the maximum of all used hardware address lengths
+    across all types of interfaces in use */
+#define NETIF_MAX_HWADDR_LEN 6U
+
+/** Whether the network interface is 'up'. This is
+ * a software flag used to control whether this network
+ * interface is enabled and processes traffic.
+ * It is set by the startup code (for static IP configuration) or
+ * by dhcp/autoip when an address has been assigned.
+ */
+#define NETIF_FLAG_UP           0x01U
+/** If set, the netif has broadcast capability.
+ * Set by the netif driver in its init function. */
+#define NETIF_FLAG_BROADCAST    0x02U
+/** If set, the netif is one end of a point-to-point connection.
+ * Set by the netif driver in its init function. */
+#define NETIF_FLAG_POINTTOPOINT 0x04U
+/** If set, the interface is configured using DHCP.
+ * Set by the DHCP code when starting or stopping DHCP. */
+#define NETIF_FLAG_DHCP         0x08U
+/** If set, the interface has an active link
+ *  (set by the network interface driver).
+ * Either set by the netif driver in its init function (if the link
+ * is up at that time) or at a later point once the link comes up
+ * (if link detection is supported by the hardware). */
+#define NETIF_FLAG_LINK_UP      0x10U
+/** If set, the netif is an ethernet device using ARP.
+ * Set by the netif driver in its init function.
+ * Used to check input packet types and use of DHCP. */
+#define NETIF_FLAG_ETHARP       0x20U
+/** If set, the netif is an ethernet device. It might not use
+ * ARP or TCP/IP if it is used for PPPoE only.
+ */
+#define NETIF_FLAG_ETHERNET     0x40U
+/** If set, the netif has IGMP capability.
+ * Set by the netif driver in its init function. */
+#define NETIF_FLAG_IGMP         0x80U
+
+/** Function prototype for netif init functions. Set up flags and output/linkoutput
+ * callback functions in this function.
+ *
+ * @param netif The netif to initialize
+ */
+typedef err_t (*netif_init_fn)(struct netif *netif);
+/** Function prototype for netif->input functions. This function is saved as 'input'
+ * callback function in the netif struct. Call it when a packet has been received.
+ *
+ * @param p The received packet, copied into a pbuf
+ * @param inp The netif which received the packet
+ */
+typedef err_t (*netif_input_fn)(struct pbuf *p, struct netif *inp);
+/** Function prototype for netif->output functions. Called by lwIP when a packet
+ * shall be sent. For ethernet netif, set this to 'etharp_output' and set
+ * 'linkoutput'.
+ *
+ * @param netif The netif which shall send a packet
+ * @param p The packet to send (p->payload points to IP header)
+ * @param ipaddr The IP address to which the packet shall be sent
+ */
+typedef err_t (*netif_output_fn)(struct netif *netif, struct pbuf *p,
+       ip_addr_t *ipaddr);
+/** Function prototype for netif->linkoutput functions. Only used for ethernet
+ * netifs. This function is called by ARP when a packet shall be sent.
+ *
+ * @param netif The netif which shall send a packet
+ * @param p The packet to send (raw ethernet packet)
+ */
+typedef err_t (*netif_linkoutput_fn)(struct netif *netif, struct pbuf *p);
+/** Function prototype for netif status- or link-callback functions. */
+typedef void (*netif_status_callback_fn)(struct netif *netif);
+/** Function prototype for netif igmp_mac_filter functions */
+typedef err_t (*netif_igmp_mac_filter_fn)(struct netif *netif,
+       ip_addr_t *group, u8_t action);
+
+/** Generic data structure used for all lwIP network interfaces.
+ *  The following fields should be filled in by the initialization
+ *  function for the device driver: hwaddr_len, hwaddr[], mtu, flags */
+struct netif {
+  /** pointer to next in linked list */
+  struct netif *next;
+
+  /** IP address configuration in network byte order */
+  ip_addr_t ip_addr;
+  ip_addr_t netmask;
+  ip_addr_t gw;
+
+  /** This function is called by the network device driver
+   *  to pass a packet up the TCP/IP stack. <EFBFBD><EFBFBD>IP<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD>*/
+  netif_input_fn input;
+  /** This function is called by the IP module when it wants
+   *  to send a packet on the interface. This function typically
+   *  first resolves the hardware address, then sends the packet. <EFBFBD><EFBFBD><EFBFBD><EFBFBD>IP<EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD>*/
+  netif_output_fn output;
+  /** This function is called by the ARP module when it wants
+   *  to send a packet on the interface. This function outputs
+   *  the pbuf as-is on the link medium. <EFBFBD>ײ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>*/
+  netif_linkoutput_fn linkoutput;
+#if LWIP_NETIF_STATUS_CALLBACK
+  /** This function is called when the netif state is set to up or down
+   */
+  netif_status_callback_fn status_callback;
+#endif /* LWIP_NETIF_STATUS_CALLBACK */
+#if LWIP_NETIF_LINK_CALLBACK
+  /** This function is called when the netif link is set to up or down
+   */
+  netif_status_callback_fn link_callback;
+#endif /* LWIP_NETIF_LINK_CALLBACK */
+  /** This field can be set by the device driver and could point
+   *  to state information for the device. <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶΣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><EFBFBD>豸<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ*/
+  void *state;
+#if LWIP_DHCP
+  /** the DHCP client state information for this netif */
+  struct dhcp *dhcp;
+#endif /* LWIP_DHCP */
+#if LWIP_AUTOIP
+  /** the AutoIP client state information for this netif */
+  struct autoip *autoip;
+#endif
+#if LWIP_NETIF_HOSTNAME
+  /* the hostname for this netif, NULL is a valid value */
+  char*  hostname;
+#endif /* LWIP_NETIF_HOSTNAME */
+  /** maximum transfer unit (in bytes) <20>ýӿ<C3BD><D3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD><DDB0><EFBFBD><EFBFBD>ȣ<EFBFBD><C8A3><EFBFBD><EFBFBD><EFBFBD>1500*/
+  u16_t mtu;
+  /** number of bytes used in hwaddr<64>ýӿ<C3BD><D3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD> */
+  u8_t hwaddr_len;
+  /** link level hardware address of this interface <20>ýӿ<C3BD><D3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ*/
+  u8_t hwaddr[NETIF_MAX_HWADDR_LEN];
+  /** flags (see NETIF_FLAG_ above) <20>ýӿ<C3BD>״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD>*/
+  u8_t flags;
+  /** descriptive abbreviation <20>ýӿڵ<D3BF><DAB5><EFBFBD><EFBFBD><EFBFBD>*/
+  char name[2];
+  /** number of this interface <20>ýӿڵı<DAB5><C4B1><EFBFBD>*/
+  u8_t num;
+#if LWIP_SNMP
+  /** link type (from "snmp_ifType" enum from snmp.h) */
+  u8_t link_type;
+  /** (estimate) link speed */
+  u32_t link_speed;
+  /** timestamp at last change made (up/down) */
+  u32_t ts;
+  /** counters */
+  u32_t ifinoctets;
+  u32_t ifinucastpkts;
+  u32_t ifinnucastpkts;
+  u32_t ifindiscards;
+  u32_t ifoutoctets;
+  u32_t ifoutucastpkts;
+  u32_t ifoutnucastpkts;
+  u32_t ifoutdiscards;
+#endif /* LWIP_SNMP */
+#if LWIP_IGMP
+  /** This function could be called to add or delete a entry in the multicast
+      filter table of the ethernet MAC.*/
+  netif_igmp_mac_filter_fn igmp_mac_filter;
+#endif /* LWIP_IGMP */
+#if LWIP_NETIF_HWADDRHINT
+  u8_t *addr_hint;
+#endif /* LWIP_NETIF_HWADDRHINT */
+#if ENABLE_LOOPBACK
+  /* List of packets to be queued for ourselves. ָ<><D6B8><EFBFBD><EFBFBD><EFBFBD>͸<EFBFBD><CDB8>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD><DDB0><EFBFBD>pbuf*/
+  struct pbuf *loop_first;//<2F><>һ<EFBFBD><D2BB>
+  struct pbuf *loop_last;//<2F><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>
+#if LWIP_LOOPBACK_MAX_PBUFS
+  u16_t loop_cnt_current;
+#endif /* LWIP_LOOPBACK_MAX_PBUFS */
+#endif /* ENABLE_LOOPBACK */
+};
+
+#if LWIP_SNMP
+#define NETIF_INIT_SNMP(netif, type, speed) \
+  /* use "snmp_ifType" enum from snmp.h for "type", snmp_ifType_ethernet_csmacd by example */ \
+  (netif)->link_type = (type);    \
+  /* your link speed here (units: bits per second) */  \
+  (netif)->link_speed = (speed);  \
+  (netif)->ts = 0;              \
+  (netif)->ifinoctets = 0;      \
+  (netif)->ifinucastpkts = 0;   \
+  (netif)->ifinnucastpkts = 0;  \
+  (netif)->ifindiscards = 0;    \
+  (netif)->ifoutoctets = 0;     \
+  (netif)->ifoutucastpkts = 0;  \
+  (netif)->ifoutnucastpkts = 0; \
+  (netif)->ifoutdiscards = 0
+#else /* LWIP_SNMP */
+#define NETIF_INIT_SNMP(netif, type, speed)
+#endif /* LWIP_SNMP */
+
+
+/** The list of network interfaces. */
+extern struct netif *netif_list;
+/** The default network interface. */
+extern struct netif *netif_default;
+
+void netif_init(void)ICACHE_FLASH_ATTR;
+
+struct netif *netif_add(struct netif *netif, ip_addr_t *ipaddr, ip_addr_t *netmask,
+      ip_addr_t *gw, void *state, netif_init_fn init, netif_input_fn input)ICACHE_FLASH_ATTR;
+
+void
+netif_set_addr(struct netif *netif, ip_addr_t *ipaddr, ip_addr_t *netmask,
+      ip_addr_t *gw)ICACHE_FLASH_ATTR;
+void netif_remove(struct netif * netif)ICACHE_FLASH_ATTR;
+
+/* Returns a network interface given its name. The name is of the form
+   "et0", where the first two letters are the "name" field in the
+   netif structure, and the digit is in the num field in the same
+   structure. */
+struct netif *netif_find(char *name)ICACHE_FLASH_ATTR;
+
+void netif_set_default(struct netif *netif)ICACHE_FLASH_ATTR;
+
+void netif_set_ipaddr(struct netif *netif, ip_addr_t *ipaddr)ICACHE_FLASH_ATTR;
+void netif_set_netmask(struct netif *netif, ip_addr_t *netmask)ICACHE_FLASH_ATTR;
+void netif_set_gw(struct netif *netif, ip_addr_t *gw)ICACHE_FLASH_ATTR;
+
+void netif_set_up(struct netif *netif)ICACHE_FLASH_ATTR;
+void netif_set_down(struct netif *netif)ICACHE_FLASH_ATTR;
+/** Ask if an interface is up */
+#define netif_is_up(netif) (((netif)->flags & NETIF_FLAG_UP) ? (u8_t)1 : (u8_t)0)
+
+#if LWIP_NETIF_STATUS_CALLBACK
+void netif_set_status_callback(struct netif *netif, netif_status_callback_fn status_callback)ICACHE_FLASH_ATTR;
+#endif /* LWIP_NETIF_STATUS_CALLBACK */
+
+void netif_set_link_up(struct netif *netif)ICACHE_FLASH_ATTR;
+void netif_set_link_down(struct netif *netif)ICACHE_FLASH_ATTR;
+/** Ask if a link is up */ 
+#define netif_is_link_up(netif) (((netif)->flags & NETIF_FLAG_LINK_UP) ? (u8_t)1 : (u8_t)0)
+
+#if LWIP_NETIF_LINK_CALLBACK
+void netif_set_link_callback(struct netif *netif, netif_status_callback_fn link_callback)ICACHE_FLASH_ATTR;
+#endif /* LWIP_NETIF_LINK_CALLBACK */
+
+#if LWIP_NETIF_HOSTNAME
+#define netif_set_hostname(netif, name) do { if((netif) != NULL) { (netif)->hostname = name; }}while(0)
+#define netif_get_hostname(netif) (((netif) != NULL) ? ((netif)->hostname) : NULL)
+#endif /* LWIP_NETIF_HOSTNAME */
+
+#if LWIP_IGMP
+#define netif_set_igmp_mac_filter(netif, function) do { if((netif) != NULL) { (netif)->igmp_mac_filter = function; }}while(0)
+#define netif_get_igmp_mac_filter(netif) (((netif) != NULL) ? ((netif)->igmp_mac_filter) : NULL)
+#endif /* LWIP_IGMP */
+
+#if ENABLE_LOOPBACK
+err_t netif_loop_output(struct netif *netif, struct pbuf *p, ip_addr_t *dest_ip)ICACHE_FLASH_ATTR;
+void netif_poll(struct netif *netif)ICACHE_FLASH_ATTR;
+#if !LWIP_NETIF_LOOPBACK_MULTITHREADING
+void netif_poll_all(void)ICACHE_FLASH_ATTR;
+#endif /* !LWIP_NETIF_LOOPBACK_MULTITHREADING */
+#endif /* ENABLE_LOOPBACK */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_NETIF_H__ */

app/include/lwip/netifapi.h

@@ -0,0 +1,108 @@
+/*
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ */
+ 
+#ifndef __LWIP_NETIFAPI_H__
+#define __LWIP_NETIFAPI_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_NETIF_API /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/sys.h"
+#include "lwip/netif.h"
+#include "lwip/dhcp.h"
+#include "lwip/autoip.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef void (*netifapi_void_fn)(struct netif *netif);
+typedef err_t (*netifapi_errt_fn)(struct netif *netif);
+
+struct netifapi_msg_msg {
+#if !LWIP_TCPIP_CORE_LOCKING
+  sys_sem_t sem;
+#endif /* !LWIP_TCPIP_CORE_LOCKING */
+  err_t err;
+  struct netif *netif;
+  union {
+    struct {
+      ip_addr_t *ipaddr;
+      ip_addr_t *netmask;
+      ip_addr_t *gw;
+      void *state;
+      netif_init_fn init;
+      netif_input_fn input;
+    } add;
+    struct {
+      netifapi_void_fn voidfunc;
+      netifapi_errt_fn errtfunc;
+    } common;
+  } msg;
+};
+
+struct netifapi_msg {
+  void (* function)(struct netifapi_msg_msg *msg);
+  struct netifapi_msg_msg msg;
+};
+
+
+/* API for application */
+err_t netifapi_netif_add       ( struct netif *netif,
+                                 ip_addr_t *ipaddr,
+                                 ip_addr_t *netmask,
+                                 ip_addr_t *gw,
+                                 void *state,
+                                 netif_init_fn init,
+                                 netif_input_fn input);
+
+err_t netifapi_netif_set_addr  ( struct netif *netif,
+                                 ip_addr_t *ipaddr,
+                                 ip_addr_t *netmask,
+                                 ip_addr_t *gw );
+
+err_t netifapi_netif_common    ( struct netif *netif,
+                                 netifapi_void_fn voidfunc,
+                                 netifapi_errt_fn errtfunc);
+
+#define netifapi_netif_remove(n)      netifapi_netif_common(n, netif_remove, NULL)
+#define netifapi_netif_set_up(n)      netifapi_netif_common(n, netif_set_up, NULL)
+#define netifapi_netif_set_down(n)    netifapi_netif_common(n, netif_set_down, NULL)
+#define netifapi_netif_set_default(n) netifapi_netif_common(n, netif_set_default, NULL)
+#define netifapi_dhcp_start(n)        netifapi_netif_common(n, NULL, dhcp_start)
+#define netifapi_dhcp_stop(n)         netifapi_netif_common(n, dhcp_stop, NULL)
+#define netifapi_autoip_start(n)      netifapi_netif_common(n, NULL, autoip_start)
+#define netifapi_autoip_stop(n)       netifapi_netif_common(n, NULL, autoip_stop)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_NETIF_API */
+
+#endif /* __LWIP_NETIFAPI_H__ */

app/include/lwip/pbuf.h

@@ -0,0 +1,160 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+
+#ifndef __LWIP_PBUF_H__
+#define __LWIP_PBUF_H__
+
+#include "lwip/opt.h"
+#include "lwip/err.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Currently, the pbuf_custom code is only needed for one specific configuration
+ * of IP_FRAG */
+#define LWIP_SUPPORT_CUSTOM_PBUF (IP_FRAG && !IP_FRAG_USES_STATIC_BUF && !LWIP_NETIF_TX_SINGLE_PBUF)
+
+#define PBUF_TRANSPORT_HLEN 20
+#define PBUF_IP_HLEN        20
+
+typedef enum {
+  PBUF_TRANSPORT,
+  PBUF_IP,
+  PBUF_LINK,
+  PBUF_RAW
+} pbuf_layer;
+
+typedef enum {
+  PBUF_RAM, /* pbuf data is stored in RAM */
+  PBUF_ROM, /* pbuf data is stored in ROM */
+  PBUF_REF, /* pbuf comes from the pbuf pool */
+  PBUF_POOL, /* pbuf payload refers to RAM */
+#ifdef EBUF_LWIP
+  PBUF_ESF_RX /* pbuf payload is from WLAN */
+#endif /* ESF_LWIP */
+} pbuf_type;
+
+
+/** indicates this packet's data should be immediately passed to the application */
+#define PBUF_FLAG_PUSH      0x01U
+/** indicates this is a custom pbuf: pbuf_free and pbuf_header handle such a
+    a pbuf differently */
+#define PBUF_FLAG_IS_CUSTOM 0x02U
+/** indicates this pbuf is UDP multicast to be looped back */
+#define PBUF_FLAG_MCASTLOOP 0x04U
+
+struct pbuf {
+  /** next pbuf in singly linked pbuf chain */
+  struct pbuf *next;
+
+  /** pointer to the actual data in the buffer */
+  void *payload;
+
+  /**
+   * total length of this buffer and all next buffers in chain
+   * belonging to the same packet.
+   *
+   * For non-queue packet chains this is the invariant:
+   * p->tot_len == p->len + (p->next? p->next->tot_len: 0)
+   */
+  u16_t tot_len;
+
+  /** length of this buffer */
+  u16_t len;
+
+  /** pbuf_type as u8_t instead of enum to save space */
+  u8_t /*pbuf_type*/ type;
+
+  /** misc flags */
+  u8_t flags;
+
+  /**
+   * the reference count always equals the number of pointers
+   * that refer to this pbuf. This can be pointers from an application,
+   * the stack itself, or pbuf->next pointers from a chain.
+   */
+  u16_t ref;
+  
+  /* add a pointer for esf_buf */
+  void * eb; 
+};
+
+#if LWIP_SUPPORT_CUSTOM_PBUF
+/** Prototype for a function to free a custom pbuf */
+typedef void (*pbuf_free_custom_fn)(struct pbuf *p);
+  
+/** A custom pbuf: like a pbuf, but following a function pointer to free it. */
+struct pbuf_custom {
+  /** The actual pbuf */
+  struct pbuf pbuf;
+  /** This function is called when pbuf_free deallocates this pbuf(_custom) */
+  pbuf_free_custom_fn custom_free_function;
+};
+#endif /* LWIP_SUPPORT_CUSTOM_PBUF */
+
+/* Initializes the pbuf module. This call is empty for now, but may not be in future. */
+#define pbuf_init()
+
+struct pbuf *pbuf_alloc(pbuf_layer l, u16_t length, pbuf_type type)ICACHE_FLASH_ATTR;
+#if LWIP_SUPPORT_CUSTOM_PBUF
+struct pbuf *pbuf_alloced_custom(pbuf_layer l, u16_t length, pbuf_type type,
+                                 struct pbuf_custom *p, void *payload_mem,
+                                 u16_t payload_mem_len)ICACHE_FLASH_ATTR;
+#endif /* LWIP_SUPPORT_CUSTOM_PBUF */
+void pbuf_realloc(struct pbuf *p, u16_t size)ICACHE_FLASH_ATTR;
+u8_t pbuf_header(struct pbuf *p, s16_t header_size)ICACHE_FLASH_ATTR;
+void pbuf_ref(struct pbuf *p)ICACHE_FLASH_ATTR;
+u8_t pbuf_free(struct pbuf *p)ICACHE_FLASH_ATTR;
+u8_t pbuf_clen(struct pbuf *p)ICACHE_FLASH_ATTR;
+void pbuf_cat(struct pbuf *head, struct pbuf *tail)ICACHE_FLASH_ATTR;
+void pbuf_chain(struct pbuf *head, struct pbuf *tail)ICACHE_FLASH_ATTR;
+struct pbuf *pbuf_dechain(struct pbuf *p)ICACHE_FLASH_ATTR;
+err_t pbuf_copy(struct pbuf *p_to, struct pbuf *p_from)ICACHE_FLASH_ATTR;
+u16_t pbuf_copy_partial(struct pbuf *p, void *dataptr, u16_t len, u16_t offset)ICACHE_FLASH_ATTR;
+err_t pbuf_take(struct pbuf *buf, const void *dataptr, u16_t len)ICACHE_FLASH_ATTR;
+struct pbuf *pbuf_coalesce(struct pbuf *p, pbuf_layer layer)ICACHE_FLASH_ATTR;
+#if LWIP_CHECKSUM_ON_COPY
+err_t pbuf_fill_chksum(struct pbuf *p, u16_t start_offset, const void *dataptr,
+                       u16_t len, u16_t *chksum)ICACHE_FLASH_ATTR;
+#endif /* LWIP_CHECKSUM_ON_COPY */
+
+u8_t pbuf_get_at(struct pbuf* p, u16_t offset)ICACHE_FLASH_ATTR;
+u16_t pbuf_memcmp(struct pbuf* p, u16_t offset, const void* s2, u16_t n)ICACHE_FLASH_ATTR;
+u16_t pbuf_memfind(struct pbuf* p, const void* mem, u16_t mem_len, u16_t start_offset)ICACHE_FLASH_ATTR;
+u16_t pbuf_strstr(struct pbuf* p, const char* substr)ICACHE_FLASH_ATTR;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_PBUF_H__ */

app/include/lwip/raw.h

@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_RAW_H__
+#define __LWIP_RAW_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_RAW /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/pbuf.h"
+#include "lwip/def.h"
+#include "lwip/ip.h"
+#include "lwip/ip_addr.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct raw_pcb;
+
+/** Function prototype for raw pcb receive callback functions.
+ * @param arg user supplied argument (raw_pcb.recv_arg)
+ * @param pcb the raw_pcb which received data
+ * @param p the packet buffer that was received
+ * @param addr the remote IP address from which the packet was received
+ * @return 1 if the packet was 'eaten' (aka. deleted),
+ *         0 if the packet lives on
+ * If returning 1, the callback is responsible for freeing the pbuf
+ * if it's not used any more.
+ */
+typedef u8_t (*raw_recv_fn)(void *arg, struct raw_pcb *pcb, struct pbuf *p,
+    ip_addr_t *addr);
+
+struct raw_pcb {
+  /* Common members of all PCB types */
+  IP_PCB;
+
+  struct raw_pcb *next;
+
+  u8_t protocol;
+
+  /** receive callback function */
+  raw_recv_fn recv;
+  /* user-supplied argument for the recv callback */
+  void *recv_arg;
+};
+
+/* The following functions is the application layer interface to the
+   RAW code. */
+struct raw_pcb * raw_new        (u8_t proto)ICACHE_FLASH_ATTR;
+void             raw_remove     (struct raw_pcb *pcb)ICACHE_FLASH_ATTR;
+err_t            raw_bind       (struct raw_pcb *pcb, ip_addr_t *ipaddr)ICACHE_FLASH_ATTR;
+err_t            raw_connect    (struct raw_pcb *pcb, ip_addr_t *ipaddr)ICACHE_FLASH_ATTR;
+
+void             raw_recv       (struct raw_pcb *pcb, raw_recv_fn recv, void *recv_arg)ICACHE_FLASH_ATTR;
+err_t            raw_sendto     (struct raw_pcb *pcb, struct pbuf *p, ip_addr_t *ipaddr)ICACHE_FLASH_ATTR;
+err_t            raw_send       (struct raw_pcb *pcb, struct pbuf *p);
+
+/* The following functions are the lower layer interface to RAW. */
+u8_t             raw_input      (struct pbuf *p, struct netif *inp)ICACHE_FLASH_ATTR;
+#define raw_init() /* Compatibility define, not init needed. */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_RAW */
+
+#endif /* __LWIP_RAW_H__ */

app/include/lwip/sio.h

@@ -0,0 +1,141 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ */
+
+/*
+ * This is the interface to the platform specific serial IO module
+ * It needs to be implemented by those platforms which need SLIP or PPP
+ */
+
+#ifndef __SIO_H__
+#define __SIO_H__
+
+#include "lwip/arch.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* If you want to define sio_fd_t elsewhere or differently,
+   define this in your cc.h file. */
+#ifndef __sio_fd_t_defined
+typedef void * sio_fd_t;
+#endif
+
+/* The following functions can be defined to something else in your cc.h file
+   or be implemented in your custom sio.c file. */
+
+#ifndef sio_open
+/**
+ * Opens a serial device for communication.
+ * 
+ * @param devnum device number
+ * @return handle to serial device if successful, NULL otherwise
+ */
+sio_fd_t sio_open(u8_t devnum)ICACHE_FLASH_ATTR;
+#endif
+
+#ifndef sio_send
+/**
+ * Sends a single character to the serial device.
+ * 
+ * @param c character to send
+ * @param fd serial device handle
+ * 
+ * @note This function will block until the character can be sent.
+ */
+void sio_send(u8_t c, sio_fd_t fd)ICACHE_FLASH_ATTR;
+#endif
+
+#ifndef sio_recv
+/**
+ * Receives a single character from the serial device.
+ * 
+ * @param fd serial device handle
+ * 
+ * @note This function will block until a character is received.
+ */
+u8_t sio_recv(sio_fd_t fd)ICACHE_FLASH_ATTR;
+#endif
+
+#ifndef sio_read
+/**
+ * Reads from the serial device.
+ * 
+ * @param fd serial device handle
+ * @param data pointer to data buffer for receiving
+ * @param len maximum length (in bytes) of data to receive
+ * @return number of bytes actually received - may be 0 if aborted by sio_read_abort
+ * 
+ * @note This function will block until data can be received. The blocking
+ * can be cancelled by calling sio_read_abort().
+ */
+u32_t sio_read(sio_fd_t fd, u8_t *data, u32_t len)ICACHE_FLASH_ATTR;
+#endif
+
+#ifndef sio_tryread
+/**
+ * Tries to read from the serial device. Same as sio_read but returns
+ * immediately if no data is available and never blocks.
+ * 
+ * @param fd serial device handle
+ * @param data pointer to data buffer for receiving
+ * @param len maximum length (in bytes) of data to receive
+ * @return number of bytes actually received
+ */
+u32_t sio_tryread(sio_fd_t fd, u8_t *data, u32_t len)ICACHE_FLASH_ATTR;
+#endif
+
+#ifndef sio_write
+/**
+ * Writes to the serial device.
+ * 
+ * @param fd serial device handle
+ * @param data pointer to data to send
+ * @param len length (in bytes) of data to send
+ * @return number of bytes actually sent
+ * 
+ * @note This function will block until all data can be sent.
+ */
+u32_t sio_write(sio_fd_t fd, u8_t *data, u32_t len)ICACHE_FLASH_ATTR;
+#endif
+
+#ifndef sio_read_abort
+/**
+ * Aborts a blocking sio_read() call.
+ * 
+ * @param fd serial device handle
+ */
+void sio_read_abort(sio_fd_t fd)ICACHE_FLASH_ATTR;
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __SIO_H__ */

app/include/lwip/snmp.h

@@ -0,0 +1,367 @@
+/*
+ * Copyright (c) 2001, 2002 Leon Woestenberg <leon.woestenberg@axon.tv>
+ * Copyright (c) 2001, 2002 Axon Digital Design B.V., The Netherlands.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Leon Woestenberg <leon.woestenberg@axon.tv>
+ *
+ */
+#ifndef __LWIP_SNMP_H__
+#define __LWIP_SNMP_H__
+
+#include "lwip/opt.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "lwip/ip_addr.h"
+
+struct udp_pcb;
+struct netif;
+
+/**
+ * @see RFC1213, "MIB-II, 6. Definitions"
+ */
+enum snmp_ifType {
+  snmp_ifType_other=1,                /* none of the following */
+  snmp_ifType_regular1822,
+  snmp_ifType_hdh1822,
+  snmp_ifType_ddn_x25,
+  snmp_ifType_rfc877_x25,
+  snmp_ifType_ethernet_csmacd,
+  snmp_ifType_iso88023_csmacd,
+  snmp_ifType_iso88024_tokenBus,
+  snmp_ifType_iso88025_tokenRing,
+  snmp_ifType_iso88026_man,
+  snmp_ifType_starLan,
+  snmp_ifType_proteon_10Mbit,
+  snmp_ifType_proteon_80Mbit,
+  snmp_ifType_hyperchannel,
+  snmp_ifType_fddi,
+  snmp_ifType_lapb,
+  snmp_ifType_sdlc,
+  snmp_ifType_ds1,                    /* T-1 */
+  snmp_ifType_e1,                     /* european equiv. of T-1 */
+  snmp_ifType_basicISDN,
+  snmp_ifType_primaryISDN,            /* proprietary serial */
+  snmp_ifType_propPointToPointSerial,
+  snmp_ifType_ppp,
+  snmp_ifType_softwareLoopback,
+  snmp_ifType_eon,                    /* CLNP over IP [11] */
+  snmp_ifType_ethernet_3Mbit,
+  snmp_ifType_nsip,                   /* XNS over IP */
+  snmp_ifType_slip,                   /* generic SLIP */
+  snmp_ifType_ultra,                  /* ULTRA technologies */
+  snmp_ifType_ds3,                    /* T-3 */
+  snmp_ifType_sip,                    /* SMDS */
+  snmp_ifType_frame_relay
+};
+
+#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */
+
+/** SNMP "sysuptime" Interval */
+#define SNMP_SYSUPTIME_INTERVAL 10
+
+/** fixed maximum length for object identifier type */
+#define LWIP_SNMP_OBJ_ID_LEN 32
+
+/** internal object identifier representation */
+struct snmp_obj_id
+{
+  u8_t len;
+  s32_t id[LWIP_SNMP_OBJ_ID_LEN];
+};
+
+/* system */
+void snmp_set_sysdesr(u8_t* str, u8_t* len);
+void snmp_set_sysobjid(struct snmp_obj_id *oid);
+void snmp_get_sysobjid_ptr(struct snmp_obj_id **oid);
+void snmp_inc_sysuptime(void);
+void snmp_add_sysuptime(u32_t value);
+void snmp_get_sysuptime(u32_t *value);
+void snmp_set_syscontact(u8_t *ocstr, u8_t *ocstrlen);
+void snmp_set_sysname(u8_t *ocstr, u8_t *ocstrlen);
+void snmp_set_syslocation(u8_t *ocstr, u8_t *ocstrlen);
+
+/* network interface */
+void snmp_add_ifinoctets(struct netif *ni, u32_t value); 
+void snmp_inc_ifinucastpkts(struct netif *ni);
+void snmp_inc_ifinnucastpkts(struct netif *ni);
+void snmp_inc_ifindiscards(struct netif *ni);
+void snmp_add_ifoutoctets(struct netif *ni, u32_t value);
+void snmp_inc_ifoutucastpkts(struct netif *ni);
+void snmp_inc_ifoutnucastpkts(struct netif *ni);
+void snmp_inc_ifoutdiscards(struct netif *ni);
+void snmp_inc_iflist(void);
+void snmp_dec_iflist(void);
+
+/* ARP (for atTable and ipNetToMediaTable) */
+void snmp_insert_arpidx_tree(struct netif *ni, ip_addr_t *ip);
+void snmp_delete_arpidx_tree(struct netif *ni, ip_addr_t *ip);
+
+/* IP */
+void snmp_inc_ipinreceives(void);
+void snmp_inc_ipinhdrerrors(void);
+void snmp_inc_ipinaddrerrors(void);
+void snmp_inc_ipforwdatagrams(void);
+void snmp_inc_ipinunknownprotos(void);
+void snmp_inc_ipindiscards(void);
+void snmp_inc_ipindelivers(void);
+void snmp_inc_ipoutrequests(void);
+void snmp_inc_ipoutdiscards(void);
+void snmp_inc_ipoutnoroutes(void);
+void snmp_inc_ipreasmreqds(void);
+void snmp_inc_ipreasmoks(void);
+void snmp_inc_ipreasmfails(void);
+void snmp_inc_ipfragoks(void);
+void snmp_inc_ipfragfails(void);
+void snmp_inc_ipfragcreates(void);
+void snmp_inc_iproutingdiscards(void);
+void snmp_insert_ipaddridx_tree(struct netif *ni);
+void snmp_delete_ipaddridx_tree(struct netif *ni);
+void snmp_insert_iprteidx_tree(u8_t dflt, struct netif *ni);
+void snmp_delete_iprteidx_tree(u8_t dflt, struct netif *ni);
+
+/* ICMP */
+void snmp_inc_icmpinmsgs(void);
+void snmp_inc_icmpinerrors(void);
+void snmp_inc_icmpindestunreachs(void);
+void snmp_inc_icmpintimeexcds(void);
+void snmp_inc_icmpinparmprobs(void);
+void snmp_inc_icmpinsrcquenchs(void);
+void snmp_inc_icmpinredirects(void);
+void snmp_inc_icmpinechos(void);
+void snmp_inc_icmpinechoreps(void);
+void snmp_inc_icmpintimestamps(void);
+void snmp_inc_icmpintimestampreps(void);
+void snmp_inc_icmpinaddrmasks(void);
+void snmp_inc_icmpinaddrmaskreps(void);
+void snmp_inc_icmpoutmsgs(void);
+void snmp_inc_icmpouterrors(void);
+void snmp_inc_icmpoutdestunreachs(void);
+void snmp_inc_icmpouttimeexcds(void);
+void snmp_inc_icmpoutparmprobs(void);
+void snmp_inc_icmpoutsrcquenchs(void);
+void snmp_inc_icmpoutredirects(void); 
+void snmp_inc_icmpoutechos(void);
+void snmp_inc_icmpoutechoreps(void);
+void snmp_inc_icmpouttimestamps(void);
+void snmp_inc_icmpouttimestampreps(void);
+void snmp_inc_icmpoutaddrmasks(void);
+void snmp_inc_icmpoutaddrmaskreps(void);
+
+/* TCP */
+void snmp_inc_tcpactiveopens(void);
+void snmp_inc_tcppassiveopens(void);
+void snmp_inc_tcpattemptfails(void);
+void snmp_inc_tcpestabresets(void);
+void snmp_inc_tcpinsegs(void);
+void snmp_inc_tcpoutsegs(void);
+void snmp_inc_tcpretranssegs(void);
+void snmp_inc_tcpinerrs(void);
+void snmp_inc_tcpoutrsts(void);
+
+/* UDP */
+void snmp_inc_udpindatagrams(void);
+void snmp_inc_udpnoports(void);
+void snmp_inc_udpinerrors(void);
+void snmp_inc_udpoutdatagrams(void);
+void snmp_insert_udpidx_tree(struct udp_pcb *pcb);
+void snmp_delete_udpidx_tree(struct udp_pcb *pcb);
+
+/* SNMP */
+void snmp_inc_snmpinpkts(void);
+void snmp_inc_snmpoutpkts(void);
+void snmp_inc_snmpinbadversions(void);
+void snmp_inc_snmpinbadcommunitynames(void);
+void snmp_inc_snmpinbadcommunityuses(void);
+void snmp_inc_snmpinasnparseerrs(void);
+void snmp_inc_snmpintoobigs(void);
+void snmp_inc_snmpinnosuchnames(void);
+void snmp_inc_snmpinbadvalues(void);
+void snmp_inc_snmpinreadonlys(void);
+void snmp_inc_snmpingenerrs(void);
+void snmp_add_snmpintotalreqvars(u8_t value);
+void snmp_add_snmpintotalsetvars(u8_t value);
+void snmp_inc_snmpingetrequests(void);
+void snmp_inc_snmpingetnexts(void);
+void snmp_inc_snmpinsetrequests(void);
+void snmp_inc_snmpingetresponses(void);
+void snmp_inc_snmpintraps(void);
+void snmp_inc_snmpouttoobigs(void);
+void snmp_inc_snmpoutnosuchnames(void);
+void snmp_inc_snmpoutbadvalues(void);
+void snmp_inc_snmpoutgenerrs(void);
+void snmp_inc_snmpoutgetrequests(void);
+void snmp_inc_snmpoutgetnexts(void);
+void snmp_inc_snmpoutsetrequests(void);
+void snmp_inc_snmpoutgetresponses(void);
+void snmp_inc_snmpouttraps(void);
+void snmp_get_snmpgrpid_ptr(struct snmp_obj_id **oid);
+void snmp_set_snmpenableauthentraps(u8_t *value);
+void snmp_get_snmpenableauthentraps(u8_t *value);
+
+/* LWIP_SNMP support not available */
+/* define everything to be empty */
+#else
+
+/* system */
+#define snmp_set_sysdesr(str, len)
+#define snmp_set_sysobjid(oid);
+#define snmp_get_sysobjid_ptr(oid)
+#define snmp_inc_sysuptime()
+#define snmp_add_sysuptime(value)
+#define snmp_get_sysuptime(value)
+#define snmp_set_syscontact(ocstr, ocstrlen);
+#define snmp_set_sysname(ocstr, ocstrlen);
+#define snmp_set_syslocation(ocstr, ocstrlen);
+
+/* network interface */
+#define snmp_add_ifinoctets(ni,value) 
+#define snmp_inc_ifinucastpkts(ni)
+#define snmp_inc_ifinnucastpkts(ni)
+#define snmp_inc_ifindiscards(ni)
+#define snmp_add_ifoutoctets(ni,value)
+#define snmp_inc_ifoutucastpkts(ni)
+#define snmp_inc_ifoutnucastpkts(ni)
+#define snmp_inc_ifoutdiscards(ni)
+#define snmp_inc_iflist()
+#define snmp_dec_iflist()
+
+/* ARP */
+#define snmp_insert_arpidx_tree(ni,ip)
+#define snmp_delete_arpidx_tree(ni,ip)
+
+/* IP */
+#define snmp_inc_ipinreceives()
+#define snmp_inc_ipinhdrerrors()
+#define snmp_inc_ipinaddrerrors()
+#define snmp_inc_ipforwdatagrams()
+#define snmp_inc_ipinunknownprotos()
+#define snmp_inc_ipindiscards()
+#define snmp_inc_ipindelivers()
+#define snmp_inc_ipoutrequests()
+#define snmp_inc_ipoutdiscards()
+#define snmp_inc_ipoutnoroutes()
+#define snmp_inc_ipreasmreqds()
+#define snmp_inc_ipreasmoks()
+#define snmp_inc_ipreasmfails()
+#define snmp_inc_ipfragoks()
+#define snmp_inc_ipfragfails()
+#define snmp_inc_ipfragcreates()
+#define snmp_inc_iproutingdiscards()
+#define snmp_insert_ipaddridx_tree(ni)
+#define snmp_delete_ipaddridx_tree(ni)
+#define snmp_insert_iprteidx_tree(dflt, ni)
+#define snmp_delete_iprteidx_tree(dflt, ni)
+
+/* ICMP */
+#define snmp_inc_icmpinmsgs()
+#define snmp_inc_icmpinerrors() 
+#define snmp_inc_icmpindestunreachs() 
+#define snmp_inc_icmpintimeexcds()
+#define snmp_inc_icmpinparmprobs() 
+#define snmp_inc_icmpinsrcquenchs() 
+#define snmp_inc_icmpinredirects() 
+#define snmp_inc_icmpinechos() 
+#define snmp_inc_icmpinechoreps()
+#define snmp_inc_icmpintimestamps() 
+#define snmp_inc_icmpintimestampreps()
+#define snmp_inc_icmpinaddrmasks()
+#define snmp_inc_icmpinaddrmaskreps()
+#define snmp_inc_icmpoutmsgs()
+#define snmp_inc_icmpouterrors()
+#define snmp_inc_icmpoutdestunreachs() 
+#define snmp_inc_icmpouttimeexcds() 
+#define snmp_inc_icmpoutparmprobs()
+#define snmp_inc_icmpoutsrcquenchs()
+#define snmp_inc_icmpoutredirects() 
+#define snmp_inc_icmpoutechos() 
+#define snmp_inc_icmpoutechoreps()
+#define snmp_inc_icmpouttimestamps()
+#define snmp_inc_icmpouttimestampreps()
+#define snmp_inc_icmpoutaddrmasks()
+#define snmp_inc_icmpoutaddrmaskreps()
+/* TCP */
+#define snmp_inc_tcpactiveopens()
+#define snmp_inc_tcppassiveopens()
+#define snmp_inc_tcpattemptfails()
+#define snmp_inc_tcpestabresets()
+#define snmp_inc_tcpinsegs()
+#define snmp_inc_tcpoutsegs()
+#define snmp_inc_tcpretranssegs()
+#define snmp_inc_tcpinerrs()
+#define snmp_inc_tcpoutrsts()
+
+/* UDP */
+#define snmp_inc_udpindatagrams()
+#define snmp_inc_udpnoports()
+#define snmp_inc_udpinerrors()
+#define snmp_inc_udpoutdatagrams()
+#define snmp_insert_udpidx_tree(pcb)
+#define snmp_delete_udpidx_tree(pcb)
+
+/* SNMP */
+#define snmp_inc_snmpinpkts()
+#define snmp_inc_snmpoutpkts()
+#define snmp_inc_snmpinbadversions()
+#define snmp_inc_snmpinbadcommunitynames()
+#define snmp_inc_snmpinbadcommunityuses()
+#define snmp_inc_snmpinasnparseerrs()
+#define snmp_inc_snmpintoobigs()
+#define snmp_inc_snmpinnosuchnames()
+#define snmp_inc_snmpinbadvalues()
+#define snmp_inc_snmpinreadonlys()
+#define snmp_inc_snmpingenerrs()
+#define snmp_add_snmpintotalreqvars(value)
+#define snmp_add_snmpintotalsetvars(value)
+#define snmp_inc_snmpingetrequests()
+#define snmp_inc_snmpingetnexts()
+#define snmp_inc_snmpinsetrequests()
+#define snmp_inc_snmpingetresponses()
+#define snmp_inc_snmpintraps()
+#define snmp_inc_snmpouttoobigs()
+#define snmp_inc_snmpoutnosuchnames()
+#define snmp_inc_snmpoutbadvalues()
+#define snmp_inc_snmpoutgenerrs()
+#define snmp_inc_snmpoutgetrequests()
+#define snmp_inc_snmpoutgetnexts()
+#define snmp_inc_snmpoutsetrequests()
+#define snmp_inc_snmpoutgetresponses()
+#define snmp_inc_snmpouttraps()
+#define snmp_get_snmpgrpid_ptr(oid)
+#define snmp_set_snmpenableauthentraps(value)
+#define snmp_get_snmpenableauthentraps(value)
+
+#endif /* LWIP_SNMP */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_SNMP_H__ */

app/include/lwip/snmp_asn1.h

@@ -0,0 +1,101 @@
+/**
+ * @file
+ * Abstract Syntax Notation One (ISO 8824, 8825) codec.
+ */
+ 
+/*
+ * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * Author: Christiaan Simons <christiaan.simons@axon.tv>
+ */
+
+#ifndef __LWIP_SNMP_ASN1_H__
+#define __LWIP_SNMP_ASN1_H__
+
+#include "lwip/opt.h"
+#include "lwip/err.h"
+#include "lwip/pbuf.h"
+#include "lwip/snmp.h"
+
+#if LWIP_SNMP
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define SNMP_ASN1_UNIV   (0)    /* (!0x80 | !0x40) */
+#define SNMP_ASN1_APPLIC (0x40) /* (!0x80 |  0x40) */
+#define SNMP_ASN1_CONTXT (0x80) /* ( 0x80 | !0x40) */
+
+#define SNMP_ASN1_CONSTR (0x20) /* ( 0x20) */
+#define SNMP_ASN1_PRIMIT (0)    /* (!0x20) */
+
+/* universal tags */
+#define SNMP_ASN1_INTEG  2
+#define SNMP_ASN1_OC_STR 4
+#define SNMP_ASN1_NUL    5
+#define SNMP_ASN1_OBJ_ID 6
+#define SNMP_ASN1_SEQ    16
+
+/* application specific (SNMP) tags */
+#define SNMP_ASN1_IPADDR 0    /* octet string size(4) */
+#define SNMP_ASN1_COUNTER 1   /* u32_t */
+#define SNMP_ASN1_GAUGE 2     /* u32_t */
+#define SNMP_ASN1_TIMETICKS 3 /* u32_t */
+#define SNMP_ASN1_OPAQUE 4    /* octet string */
+
+/* context specific (SNMP) tags */
+#define SNMP_ASN1_PDU_GET_REQ 0
+#define SNMP_ASN1_PDU_GET_NEXT_REQ 1
+#define SNMP_ASN1_PDU_GET_RESP 2
+#define SNMP_ASN1_PDU_SET_REQ 3
+#define SNMP_ASN1_PDU_TRAP 4
+
+err_t snmp_asn1_dec_type(struct pbuf *p, u16_t ofs, u8_t *type);
+err_t snmp_asn1_dec_length(struct pbuf *p, u16_t ofs, u8_t *octets_used, u16_t *length);
+err_t snmp_asn1_dec_u32t(struct pbuf *p, u16_t ofs, u16_t len, u32_t *value);
+err_t snmp_asn1_dec_s32t(struct pbuf *p, u16_t ofs, u16_t len, s32_t *value);
+err_t snmp_asn1_dec_oid(struct pbuf *p, u16_t ofs, u16_t len, struct snmp_obj_id *oid);
+err_t snmp_asn1_dec_raw(struct pbuf *p, u16_t ofs, u16_t len, u16_t raw_len, u8_t *raw);
+
+void snmp_asn1_enc_length_cnt(u16_t length, u8_t *octets_needed);
+void snmp_asn1_enc_u32t_cnt(u32_t value, u16_t *octets_needed);
+void snmp_asn1_enc_s32t_cnt(s32_t value, u16_t *octets_needed);
+void snmp_asn1_enc_oid_cnt(u8_t ident_len, s32_t *ident, u16_t *octets_needed);
+err_t snmp_asn1_enc_type(struct pbuf *p, u16_t ofs, u8_t type);
+err_t snmp_asn1_enc_length(struct pbuf *p, u16_t ofs, u16_t length);
+err_t snmp_asn1_enc_u32t(struct pbuf *p, u16_t ofs, u16_t octets_needed, u32_t value);
+err_t snmp_asn1_enc_s32t(struct pbuf *p, u16_t ofs, u16_t octets_needed, s32_t value);
+err_t snmp_asn1_enc_oid(struct pbuf *p, u16_t ofs, u8_t ident_len, s32_t *ident);
+err_t snmp_asn1_enc_raw(struct pbuf *p, u16_t ofs, u16_t raw_len, u8_t *raw);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_SNMP */
+
+#endif /* __LWIP_SNMP_ASN1_H__ */

app/include/lwip/snmp_msg.h

@@ -0,0 +1,315 @@
+/**
+ * @file
+ * SNMP Agent message handling structures.
+ */
+
+/*
+ * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * Author: Christiaan Simons <christiaan.simons@axon.tv>
+ */
+
+#ifndef __LWIP_SNMP_MSG_H__
+#define __LWIP_SNMP_MSG_H__
+
+#include "lwip/opt.h"
+#include "lwip/snmp.h"
+#include "lwip/snmp_structs.h"
+#include "lwip/ip_addr.h"
+#include "lwip/err.h"
+
+#if LWIP_SNMP
+
+#if SNMP_PRIVATE_MIB
+/* When using a private MIB, you have to create a file 'private_mib.h' that contains
+ * a 'struct mib_array_node mib_private' which contains your MIB. */
+#include "private_mib.h"
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* The listen port of the SNMP agent. Clients have to make their requests to
+   this port. Most standard clients won't work if you change this! */
+#ifndef SNMP_IN_PORT
+#define SNMP_IN_PORT 161
+#endif
+/* The remote port the SNMP agent sends traps to. Most standard trap sinks won't
+   work if you change this! */
+#ifndef SNMP_TRAP_PORT
+#define SNMP_TRAP_PORT 162
+#endif
+
+#define SNMP_ES_NOERROR 0
+#define SNMP_ES_TOOBIG 1
+#define SNMP_ES_NOSUCHNAME 2
+#define SNMP_ES_BADVALUE 3
+#define SNMP_ES_READONLY 4
+#define SNMP_ES_GENERROR 5
+
+#define SNMP_GENTRAP_COLDSTART 0
+#define SNMP_GENTRAP_WARMSTART 1
+#define SNMP_GENTRAP_AUTHFAIL 4
+#define SNMP_GENTRAP_ENTERPRISESPC 6
+
+struct snmp_varbind
+{
+  /* next pointer, NULL for last in list */
+  struct snmp_varbind *next;
+  /* previous pointer, NULL for first in list */
+  struct snmp_varbind *prev;
+
+  /* object identifier length (in s32_t) */
+  u8_t ident_len;
+  /* object identifier array */
+  s32_t *ident;
+
+  /* object value ASN1 type */
+  u8_t value_type;
+  /* object value length (in u8_t) */
+  u8_t value_len;
+  /* object value */
+  void *value;
+
+  /* encoding varbind seq length length */
+  u8_t seqlenlen;
+  /* encoding object identifier length length */
+  u8_t olenlen;
+  /* encoding object value length length */
+  u8_t vlenlen;
+  /* encoding varbind seq length */
+  u16_t seqlen;
+  /* encoding object identifier length */
+  u16_t olen;
+  /* encoding object value length */
+  u16_t vlen;
+};
+
+struct snmp_varbind_root
+{
+  struct snmp_varbind *head;
+  struct snmp_varbind *tail;
+  /* number of variable bindings in list */
+  u8_t count;
+  /* encoding varbind-list seq length length */
+  u8_t seqlenlen;
+  /* encoding varbind-list seq length */
+  u16_t seqlen;
+};
+
+/** output response message header length fields */
+struct snmp_resp_header_lengths
+{
+  /* encoding error-index length length */
+  u8_t erridxlenlen;
+  /* encoding error-status length length */
+  u8_t errstatlenlen;
+  /* encoding request id length length */
+  u8_t ridlenlen;
+  /* encoding pdu length length */
+  u8_t pdulenlen;
+  /* encoding community length length */
+  u8_t comlenlen;
+  /* encoding version length length */
+  u8_t verlenlen;
+  /* encoding sequence length length */
+  u8_t seqlenlen;
+
+  /* encoding error-index length */
+  u16_t erridxlen;
+  /* encoding error-status length */
+  u16_t errstatlen;
+  /* encoding request id length */
+  u16_t ridlen;
+  /* encoding pdu length */
+  u16_t pdulen;
+  /* encoding community length */
+  u16_t comlen;
+  /* encoding version length */
+  u16_t verlen;
+  /* encoding sequence length */
+  u16_t seqlen;
+};
+
+/** output response message header length fields */
+struct snmp_trap_header_lengths
+{
+  /* encoding timestamp length length */
+  u8_t tslenlen;
+  /* encoding specific-trap length length */
+  u8_t strplenlen;
+  /* encoding generic-trap length length */
+  u8_t gtrplenlen;
+  /* encoding agent-addr length length */
+  u8_t aaddrlenlen;
+  /* encoding enterprise-id length length */
+  u8_t eidlenlen;
+  /* encoding pdu length length */
+  u8_t pdulenlen;
+  /* encoding community length length */
+  u8_t comlenlen;
+  /* encoding version length length */
+  u8_t verlenlen;
+  /* encoding sequence length length */
+  u8_t seqlenlen;
+
+  /* encoding timestamp length */
+  u16_t tslen;
+  /* encoding specific-trap length */
+  u16_t strplen;
+  /* encoding generic-trap length */
+  u16_t gtrplen;
+  /* encoding agent-addr length */
+  u16_t aaddrlen;
+  /* encoding enterprise-id length */
+  u16_t eidlen;
+  /* encoding pdu length */
+  u16_t pdulen;
+  /* encoding community length */
+  u16_t comlen;
+  /* encoding version length */
+  u16_t verlen;
+  /* encoding sequence length */
+  u16_t seqlen;
+};
+
+/* Accepting new SNMP messages. */
+#define SNMP_MSG_EMPTY                 0
+/* Search for matching object for variable binding. */
+#define SNMP_MSG_SEARCH_OBJ            1
+/* Perform SNMP operation on in-memory object.
+   Pass-through states, for symmetry only. */
+#define SNMP_MSG_INTERNAL_GET_OBJDEF   2
+#define SNMP_MSG_INTERNAL_GET_VALUE    3
+#define SNMP_MSG_INTERNAL_SET_TEST     4
+#define SNMP_MSG_INTERNAL_GET_OBJDEF_S 5
+#define SNMP_MSG_INTERNAL_SET_VALUE    6
+/* Perform SNMP operation on object located externally.
+   In theory this could be used for building a proxy agent.
+   Practical use is for an enterprise spc. app. gateway. */
+#define SNMP_MSG_EXTERNAL_GET_OBJDEF   7
+#define SNMP_MSG_EXTERNAL_GET_VALUE    8
+#define SNMP_MSG_EXTERNAL_SET_TEST     9
+#define SNMP_MSG_EXTERNAL_GET_OBJDEF_S 10
+#define SNMP_MSG_EXTERNAL_SET_VALUE    11
+
+#define SNMP_COMMUNITY_STR_LEN 64
+struct snmp_msg_pstat
+{
+  /* lwIP local port (161) binding */
+  struct udp_pcb *pcb;
+  /* source IP address */
+  ip_addr_t sip;
+  /* source UDP port */
+  u16_t sp;
+  /* request type */
+  u8_t rt;
+  /* request ID */
+  s32_t rid;
+  /* error status */
+  s32_t error_status;
+  /* error index */
+  s32_t error_index;
+  /* community name (zero terminated) */
+  u8_t community[SNMP_COMMUNITY_STR_LEN + 1];
+  /* community string length (exclusive zero term) */
+  u8_t com_strlen;
+  /* one out of MSG_EMPTY, MSG_DEMUX, MSG_INTERNAL, MSG_EXTERNAL_x */
+  u8_t state;
+  /* saved arguments for MSG_EXTERNAL_x */
+  struct mib_external_node *ext_mib_node;
+  struct snmp_name_ptr ext_name_ptr;
+  struct obj_def ext_object_def;
+  struct snmp_obj_id ext_oid;
+  /* index into input variable binding list */
+  u8_t vb_idx;
+  /* ptr into input variable binding list */
+  struct snmp_varbind *vb_ptr;
+  /* list of variable bindings from input */
+  struct snmp_varbind_root invb;
+  /* list of variable bindings to output */
+  struct snmp_varbind_root outvb;
+  /* output response lengths used in ASN encoding */
+  struct snmp_resp_header_lengths rhl;
+};
+
+struct snmp_msg_trap
+{
+  /* lwIP local port (161) binding */
+  struct udp_pcb *pcb;
+  /* destination IP address in network order */
+  ip_addr_t dip;
+
+  /* source enterprise ID (sysObjectID) */
+  struct snmp_obj_id *enterprise;
+  /* source IP address, raw network order format */
+  u8_t sip_raw[4];
+  /* generic trap code */
+  u32_t gen_trap;
+  /* specific trap code */
+  u32_t spc_trap;
+  /* timestamp */
+  u32_t ts;
+  /* list of variable bindings to output */
+  struct snmp_varbind_root outvb;
+  /* output trap lengths used in ASN encoding */
+  struct snmp_trap_header_lengths thl;
+};
+
+/** Agent Version constant, 0 = v1 oddity */
+extern const s32_t snmp_version;
+/** Agent default "public" community string */
+extern const char snmp_publiccommunity[7];
+
+extern struct snmp_msg_trap trap_msg;
+
+/** Agent setup, start listening to port 161. */
+void snmp_init(void);
+void snmp_trap_dst_enable(u8_t dst_idx, u8_t enable);
+void snmp_trap_dst_ip_set(u8_t dst_idx, ip_addr_t *dst);
+
+/** Varbind-list functions. */
+struct snmp_varbind* snmp_varbind_alloc(struct snmp_obj_id *oid, u8_t type, u8_t len);
+void snmp_varbind_free(struct snmp_varbind *vb);
+void snmp_varbind_list_free(struct snmp_varbind_root *root);
+void snmp_varbind_tail_add(struct snmp_varbind_root *root, struct snmp_varbind *vb);
+struct snmp_varbind* snmp_varbind_tail_remove(struct snmp_varbind_root *root);
+
+/** Handle an internal (recv) or external (private response) event. */
+void snmp_msg_event(u8_t request_id);
+err_t snmp_send_response(struct snmp_msg_pstat *m_stat);
+err_t snmp_send_trap(s8_t generic_trap, struct snmp_obj_id *eoid, s32_t specific_trap);
+void snmp_coldstart_trap(void);
+void snmp_authfail_trap(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_SNMP */
+
+#endif /* __LWIP_SNMP_MSG_H__ */

app/include/lwip/snmp_structs.h

@@ -0,0 +1,268 @@
+/**
+ * @file
+ * Generic MIB tree structures.
+ *
+ * @todo namespace prefixes
+ */
+
+/*
+ * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * Author: Christiaan Simons <christiaan.simons@axon.tv>
+ */
+
+#ifndef __LWIP_SNMP_STRUCTS_H__
+#define __LWIP_SNMP_STRUCTS_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/snmp.h"
+
+#if SNMP_PRIVATE_MIB
+/* When using a private MIB, you have to create a file 'private_mib.h' that contains
+ * a 'struct mib_array_node mib_private' which contains your MIB. */
+#include "private_mib.h"
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* MIB object instance */
+#define MIB_OBJECT_NONE 0 
+#define MIB_OBJECT_SCALAR 1
+#define MIB_OBJECT_TAB 2
+
+/* MIB access types */
+#define MIB_ACCESS_READ   1
+#define MIB_ACCESS_WRITE  2
+
+/* MIB object access */
+#define MIB_OBJECT_READ_ONLY      MIB_ACCESS_READ
+#define MIB_OBJECT_READ_WRITE     (MIB_ACCESS_READ | MIB_ACCESS_WRITE)
+#define MIB_OBJECT_WRITE_ONLY     MIB_ACCESS_WRITE
+#define MIB_OBJECT_NOT_ACCESSIBLE 0
+
+/** object definition returned by (get_object_def)() */
+struct obj_def
+{
+  /* MIB_OBJECT_NONE (0), MIB_OBJECT_SCALAR (1), MIB_OBJECT_TAB (2) */
+  u8_t instance;
+  /* 0 read-only, 1 read-write, 2 write-only, 3 not-accessible */
+  u8_t access;
+  /* ASN type for this object */
+  u8_t asn_type;
+  /* value length (host length) */
+  u16_t v_len;
+  /* length of instance part of supplied object identifier */
+  u8_t  id_inst_len;
+  /* instance part of supplied object identifier */
+  s32_t *id_inst_ptr;
+};
+
+struct snmp_name_ptr
+{
+  u8_t ident_len;
+  s32_t *ident;
+};
+
+/** MIB const scalar (.0) node */
+#define MIB_NODE_SC 0x01
+/** MIB const array node */
+#define MIB_NODE_AR 0x02
+/** MIB array node (mem_malloced from RAM) */
+#define MIB_NODE_RA 0x03
+/** MIB list root node (mem_malloced from RAM) */
+#define MIB_NODE_LR 0x04
+/** MIB node for external objects */
+#define MIB_NODE_EX 0x05
+
+/** node "base class" layout, the mandatory fields for a node  */
+struct mib_node
+{
+  /** returns struct obj_def for the given object identifier */
+  void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
+  /** returns object value for the given object identifier,
+     @note the caller must allocate at least len bytes for the value */
+  void (*get_value)(struct obj_def *od, u16_t len, void *value);
+  /** tests length and/or range BEFORE setting */
+  u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
+  /** sets object value, only to be called when set_test()  */
+  void (*set_value)(struct obj_def *od, u16_t len, void *value);  
+  /** One out of MIB_NODE_AR, MIB_NODE_LR or MIB_NODE_EX */
+  u8_t node_type;
+  /* array or max list length */
+  u16_t maxlength;
+};
+
+/** derived node for scalars .0 index */
+typedef struct mib_node mib_scalar_node;
+
+/** derived node, points to a fixed size const array
+    of sub-identifiers plus a 'child' pointer */
+struct mib_array_node
+{
+  /* inherited "base class" members */
+  void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
+  void (*get_value)(struct obj_def *od, u16_t len, void *value);
+  u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
+  void (*set_value)(struct obj_def *od, u16_t len, void *value);
+
+  u8_t node_type;
+  u16_t maxlength;
+
+  /* additional struct members */
+  const s32_t *objid;
+  struct mib_node* const *nptr;
+};
+
+/** derived node, points to a fixed size mem_malloced array
+    of sub-identifiers plus a 'child' pointer */
+struct mib_ram_array_node
+{
+  /* inherited "base class" members */
+  void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
+  void (*get_value)(struct obj_def *od, u16_t len, void *value);
+  u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
+  void (*set_value)(struct obj_def *od, u16_t len, void *value);
+
+  u8_t node_type;
+  u16_t maxlength;
+
+  /* aditional struct members */
+  s32_t *objid;
+  struct mib_node **nptr;
+};
+
+struct mib_list_node
+{
+  struct mib_list_node *prev;  
+  struct mib_list_node *next;
+  s32_t objid;
+  struct mib_node *nptr;
+};
+
+/** derived node, points to a doubly linked list
+    of sub-identifiers plus a 'child' pointer */
+struct mib_list_rootnode
+{
+  /* inherited "base class" members */
+  void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
+  void (*get_value)(struct obj_def *od, u16_t len, void *value);
+  u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
+  void (*set_value)(struct obj_def *od, u16_t len, void *value);
+
+  u8_t node_type;
+  u16_t maxlength;
+
+  /* additional struct members */
+  struct mib_list_node *head;
+  struct mib_list_node *tail;
+  /* counts list nodes in list  */
+  u16_t count;
+};
+
+/** derived node, has access functions for mib object in external memory or device
+    using 'tree_level' and 'idx', with a range 0 .. (level_length() - 1) */
+struct mib_external_node
+{
+  /* inherited "base class" members */
+  void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
+  void (*get_value)(struct obj_def *od, u16_t len, void *value);
+  u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
+  void (*set_value)(struct obj_def *od, u16_t len, void *value);
+
+  u8_t node_type;
+  u16_t maxlength;
+
+  /* additional struct members */
+  /** points to an external (in memory) record of some sort of addressing
+      information, passed to and interpreted by the funtions below */
+  void* addr_inf;
+  /** tree levels under this node */
+  u8_t tree_levels;
+  /** number of objects at this level */
+  u16_t (*level_length)(void* addr_inf, u8_t level);
+  /** compares object sub identifier with external id
+      return zero when equal, nonzero when unequal */
+  s32_t (*ident_cmp)(void* addr_inf, u8_t level, u16_t idx, s32_t sub_id);
+  void (*get_objid)(void* addr_inf, u8_t level, u16_t idx, s32_t *sub_id);
+
+  /** async Questions */
+  void (*get_object_def_q)(void* addr_inf, u8_t rid, u8_t ident_len, s32_t *ident);
+  void (*get_value_q)(u8_t rid, struct obj_def *od);
+  void (*set_test_q)(u8_t rid, struct obj_def *od);
+  void (*set_value_q)(u8_t rid, struct obj_def *od, u16_t len, void *value);
+  /** async Answers */
+  void (*get_object_def_a)(u8_t rid, u8_t ident_len, s32_t *ident, struct obj_def *od);
+  void (*get_value_a)(u8_t rid, struct obj_def *od, u16_t len, void *value);
+  u8_t (*set_test_a)(u8_t rid, struct obj_def *od, u16_t len, void *value);
+  void (*set_value_a)(u8_t rid, struct obj_def *od, u16_t len, void *value);
+  /** async Panic Close (agent returns error reply, 
+      e.g. used for external transaction cleanup) */
+  void (*get_object_def_pc)(u8_t rid, u8_t ident_len, s32_t *ident);
+  void (*get_value_pc)(u8_t rid, struct obj_def *od);
+  void (*set_test_pc)(u8_t rid, struct obj_def *od);
+  void (*set_value_pc)(u8_t rid, struct obj_def *od);
+};
+
+/** export MIB tree from mib2.c */
+extern const struct mib_array_node internet;
+
+/** dummy function pointers for non-leaf MIB nodes from mib2.c */
+void noleafs_get_object_def(u8_t ident_len, s32_t *ident, struct obj_def *od);
+void noleafs_get_value(struct obj_def *od, u16_t len, void *value);
+u8_t noleafs_set_test(struct obj_def *od, u16_t len, void *value);
+void noleafs_set_value(struct obj_def *od, u16_t len, void *value);
+
+void snmp_oidtoip(s32_t *ident, ip_addr_t *ip);
+void snmp_iptooid(ip_addr_t *ip, s32_t *ident);
+void snmp_ifindextonetif(s32_t ifindex, struct netif **netif);
+void snmp_netiftoifindex(struct netif *netif, s32_t *ifidx);
+
+struct mib_list_node* snmp_mib_ln_alloc(s32_t id);
+void snmp_mib_ln_free(struct mib_list_node *ln);
+struct mib_list_rootnode* snmp_mib_lrn_alloc(void);
+void snmp_mib_lrn_free(struct mib_list_rootnode *lrn);
+
+s8_t snmp_mib_node_insert(struct mib_list_rootnode *rn, s32_t objid, struct mib_list_node **insn);
+s8_t snmp_mib_node_find(struct mib_list_rootnode *rn, s32_t objid, struct mib_list_node **fn);
+struct mib_list_rootnode *snmp_mib_node_delete(struct mib_list_rootnode *rn, struct mib_list_node *n);
+
+struct mib_node* snmp_search_tree(struct mib_node *node, u8_t ident_len, s32_t *ident, struct snmp_name_ptr *np);
+struct mib_node* snmp_expand_tree(struct mib_node *node, u8_t ident_len, s32_t *ident, struct snmp_obj_id *oidret);
+u8_t snmp_iso_prefix_tst(u8_t ident_len, s32_t *ident);
+u8_t snmp_iso_prefix_expand(u8_t ident_len, s32_t *ident, struct snmp_obj_id *oidret);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_SNMP */
+
+#endif /* __LWIP_SNMP_STRUCTS_H__ */

app/include/lwip/sockets.h

@@ -0,0 +1,376 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+
+
+#ifndef __LWIP_SOCKETS_H__
+#define __LWIP_SOCKETS_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */
+
+#include <stddef.h> /* for size_t */
+
+#include "lwip/ip_addr.h"
+#include "lwip/inet.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* members are in network byte order */
+struct sockaddr_in {
+  u8_t sin_len;
+  u8_t sin_family;
+  u16_t sin_port;
+  struct in_addr sin_addr;
+  char sin_zero[8];
+};
+
+struct sockaddr {
+  u8_t sa_len;
+  u8_t sa_family;
+  char sa_data[14];
+};
+
+#ifndef socklen_t
+#  define socklen_t u32_t
+#endif
+
+/* Socket protocol types (TCP/UDP/RAW) */
+#define SOCK_STREAM     1
+#define SOCK_DGRAM      2
+#define SOCK_RAW        3
+
+/*
+ * Option flags per-socket. These must match the SOF_ flags in ip.h (checked in init.c)
+ */
+#define  SO_DEBUG       0x0001 /* Unimplemented: turn on debugging info recording */
+#define  SO_ACCEPTCONN  0x0002 /* socket has had listen() */
+#define  SO_REUSEADDR   0x0004 /* Allow local address reuse */
+#define  SO_KEEPALIVE   0x0008 /* keep connections alive */
+#define  SO_DONTROUTE   0x0010 /* Unimplemented: just use interface addresses */
+#define  SO_BROADCAST   0x0020 /* permit to send and to receive broadcast messages (see IP_SOF_BROADCAST option) */
+#define  SO_USELOOPBACK 0x0040 /* Unimplemented: bypass hardware when possible */
+#define  SO_LINGER      0x0080 /* linger on close if data present */
+#define  SO_OOBINLINE   0x0100 /* Unimplemented: leave received OOB data in line */
+#define  SO_REUSEPORT   0x0200 /* Unimplemented: allow local address & port reuse */
+
+#define SO_DONTLINGER   ((int)(~SO_LINGER))
+
+/*
+ * Additional options, not kept in so_options.
+ */
+#define SO_SNDBUF    0x1001    /* Unimplemented: send buffer size */
+#define SO_RCVBUF    0x1002    /* receive buffer size */
+#define SO_SNDLOWAT  0x1003    /* Unimplemented: send low-water mark */
+#define SO_RCVLOWAT  0x1004    /* Unimplemented: receive low-water mark */
+#define SO_SNDTIMEO  0x1005    /* Unimplemented: send timeout */
+#define SO_RCVTIMEO  0x1006    /* receive timeout */
+#define SO_ERROR     0x1007    /* get error status and clear */
+#define SO_TYPE      0x1008    /* get socket type */
+#define SO_CONTIMEO  0x1009    /* Unimplemented: connect timeout */
+#define SO_NO_CHECK  0x100a    /* don't create UDP checksum */
+
+
+/*
+ * Structure used for manipulating linger option.
+ */
+struct linger {
+       int l_onoff;                /* option on/off */
+       int l_linger;               /* linger time */
+};
+
+/*
+ * Level number for (get/set)sockopt() to apply to socket itself.
+ */
+#define  SOL_SOCKET  0xfff    /* options for socket level */
+
+
+#define AF_UNSPEC       0
+#define AF_INET         2
+#define PF_INET         AF_INET
+#define PF_UNSPEC       AF_UNSPEC
+
+#define IPPROTO_IP      0
+#define IPPROTO_TCP     6
+#define IPPROTO_UDP     17
+#define IPPROTO_UDPLITE 136
+
+/* Flags we can use with send and recv. */
+#define MSG_PEEK       0x01    /* Peeks at an incoming message */
+#define MSG_WAITALL    0x02    /* Unimplemented: Requests that the function block until the full amount of data requested can be returned */
+#define MSG_OOB        0x04    /* Unimplemented: Requests out-of-band data. The significance and semantics of out-of-band data are protocol-specific */
+#define MSG_DONTWAIT   0x08    /* Nonblocking i/o for this operation only */
+#define MSG_MORE       0x10    /* Sender will send more */
+
+
+/*
+ * Options for level IPPROTO_IP
+ */
+#define IP_TOS             1
+#define IP_TTL             2
+
+#if LWIP_TCP
+/*
+ * Options for level IPPROTO_TCP
+ */
+#define TCP_NODELAY    0x01    /* don't delay send to coalesce packets */
+#define TCP_KEEPALIVE  0x02    /* send KEEPALIVE probes when idle for pcb->keep_idle milliseconds */
+#define TCP_KEEPIDLE   0x03    /* set pcb->keep_idle  - Same as TCP_KEEPALIVE, but use seconds for get/setsockopt */
+#define TCP_KEEPINTVL  0x04    /* set pcb->keep_intvl - Use seconds for get/setsockopt */
+#define TCP_KEEPCNT    0x05    /* set pcb->keep_cnt   - Use number of probes sent for get/setsockopt */
+#endif /* LWIP_TCP */
+
+#if LWIP_UDP && LWIP_UDPLITE
+/*
+ * Options for level IPPROTO_UDPLITE
+ */
+#define UDPLITE_SEND_CSCOV 0x01 /* sender checksum coverage */
+#define UDPLITE_RECV_CSCOV 0x02 /* minimal receiver checksum coverage */
+#endif /* LWIP_UDP && LWIP_UDPLITE*/
+
+
+#if LWIP_IGMP
+/*
+ * Options and types for UDP multicast traffic handling
+ */
+#define IP_ADD_MEMBERSHIP  3
+#define IP_DROP_MEMBERSHIP 4
+#define IP_MULTICAST_TTL   5
+#define IP_MULTICAST_IF    6
+#define IP_MULTICAST_LOOP  7
+
+typedef struct ip_mreq {
+    struct in_addr imr_multiaddr; /* IP multicast address of group */
+    struct in_addr imr_interface; /* local IP address of interface */
+} ip_mreq;
+#endif /* LWIP_IGMP */
+
+/*
+ * The Type of Service provides an indication of the abstract
+ * parameters of the quality of service desired.  These parameters are
+ * to be used to guide the selection of the actual service parameters
+ * when transmitting a datagram through a particular network.  Several
+ * networks offer service precedence, which somehow treats high
+ * precedence traffic as more important than other traffic (generally
+ * by accepting only traffic above a certain precedence at time of high
+ * load).  The major choice is a three way tradeoff between low-delay,
+ * high-reliability, and high-throughput.
+ * The use of the Delay, Throughput, and Reliability indications may
+ * increase the cost (in some sense) of the service.  In many networks
+ * better performance for one of these parameters is coupled with worse
+ * performance on another.  Except for very unusual cases at most two
+ * of these three indications should be set.
+ */
+#define IPTOS_TOS_MASK          0x1E
+#define IPTOS_TOS(tos)          ((tos) & IPTOS_TOS_MASK)
+#define IPTOS_LOWDELAY          0x10
+#define IPTOS_THROUGHPUT        0x08
+#define IPTOS_RELIABILITY       0x04
+#define IPTOS_LOWCOST           0x02
+#define IPTOS_MINCOST           IPTOS_LOWCOST
+
+/*
+ * The Network Control precedence designation is intended to be used
+ * within a network only.  The actual use and control of that
+ * designation is up to each network. The Internetwork Control
+ * designation is intended for use by gateway control originators only.
+ * If the actual use of these precedence designations is of concern to
+ * a particular network, it is the responsibility of that network to
+ * control the access to, and use of, those precedence designations.
+ */
+#define IPTOS_PREC_MASK                 0xe0
+#define IPTOS_PREC(tos)                ((tos) & IPTOS_PREC_MASK)
+#define IPTOS_PREC_NETCONTROL           0xe0
+#define IPTOS_PREC_INTERNETCONTROL      0xc0
+#define IPTOS_PREC_CRITIC_ECP           0xa0
+#define IPTOS_PREC_FLASHOVERRIDE        0x80
+#define IPTOS_PREC_FLASH                0x60
+#define IPTOS_PREC_IMMEDIATE            0x40
+#define IPTOS_PREC_PRIORITY             0x20
+#define IPTOS_PREC_ROUTINE              0x00
+
+
+/*
+ * Commands for ioctlsocket(),  taken from the BSD file fcntl.h.
+ * lwip_ioctl only supports FIONREAD and FIONBIO, for now
+ *
+ * Ioctl's have the command encoded in the lower word,
+ * and the size of any in or out parameters in the upper
+ * word.  The high 2 bits of the upper word are used
+ * to encode the in/out status of the parameter; for now
+ * we restrict parameters to at most 128 bytes.
+ */
+#if !defined(FIONREAD) || !defined(FIONBIO)
+#define IOCPARM_MASK    0x7fU           /* parameters must be < 128 bytes */
+#define IOC_VOID        0x20000000UL    /* no parameters */
+#define IOC_OUT         0x40000000UL    /* copy out parameters */
+#define IOC_IN          0x80000000UL    /* copy in parameters */
+#define IOC_INOUT       (IOC_IN|IOC_OUT)
+                                        /* 0x20000000 distinguishes new &
+                                           old ioctl's */
+#define _IO(x,y)        (IOC_VOID|((x)<<8)|(y))
+
+#define _IOR(x,y,t)     (IOC_OUT|(((long)sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))
+
+#define _IOW(x,y,t)     (IOC_IN|(((long)sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))
+#endif /* !defined(FIONREAD) || !defined(FIONBIO) */
+
+#ifndef FIONREAD
+#define FIONREAD    _IOR('f', 127, unsigned long) /* get # bytes to read */
+#endif
+#ifndef FIONBIO
+#define FIONBIO     _IOW('f', 126, unsigned long) /* set/clear non-blocking i/o */
+#endif
+
+/* Socket I/O Controls: unimplemented */
+#ifndef SIOCSHIWAT
+#define SIOCSHIWAT  _IOW('s',  0, unsigned long)  /* set high watermark */
+#define SIOCGHIWAT  _IOR('s',  1, unsigned long)  /* get high watermark */
+#define SIOCSLOWAT  _IOW('s',  2, unsigned long)  /* set low watermark */
+#define SIOCGLOWAT  _IOR('s',  3, unsigned long)  /* get low watermark */
+#define SIOCATMARK  _IOR('s',  7, unsigned long)  /* at oob mark? */
+#endif
+
+/* commands for fnctl */
+#ifndef F_GETFL
+#define F_GETFL 3
+#endif
+#ifndef F_SETFL
+#define F_SETFL 4
+#endif
+
+/* File status flags and file access modes for fnctl,
+   these are bits in an int. */
+#ifndef O_NONBLOCK
+#define O_NONBLOCK  1 /* nonblocking I/O */
+#endif
+#ifndef O_NDELAY
+#define O_NDELAY    1 /* same as O_NONBLOCK, for compatibility */
+#endif
+
+#ifndef SHUT_RD
+  #define SHUT_RD   0
+  #define SHUT_WR   1
+  #define SHUT_RDWR 2
+#endif
+
+/* FD_SET used for lwip_select */
+#ifndef FD_SET
+  #undef  FD_SETSIZE
+  /* Make FD_SETSIZE match NUM_SOCKETS in socket.c */
+  #define FD_SETSIZE    MEMP_NUM_NETCONN
+  #define FD_SET(n, p)  ((p)->fd_bits[(n)/8] |=  (1 << ((n) & 7)))
+  #define FD_CLR(n, p)  ((p)->fd_bits[(n)/8] &= ~(1 << ((n) & 7)))
+  #define FD_ISSET(n,p) ((p)->fd_bits[(n)/8] &   (1 << ((n) & 7)))
+  #define FD_ZERO(p)    memset((void*)(p),0,sizeof(*(p)))
+
+  typedef struct fd_set {
+          unsigned char fd_bits [(FD_SETSIZE+7)/8];
+        } fd_set;
+
+#endif /* FD_SET */
+
+/** LWIP_TIMEVAL_PRIVATE: if you want to use the struct timeval provided
+ * by your system, set this to 0 and include <sys/time.h> in cc.h */ 
+#ifndef LWIP_TIMEVAL_PRIVATE
+#define LWIP_TIMEVAL_PRIVATE 1
+#endif
+
+#if LWIP_TIMEVAL_PRIVATE
+struct timeval {
+  long    tv_sec;         /* seconds */
+  long    tv_usec;        /* and microseconds */
+};
+#endif /* LWIP_TIMEVAL_PRIVATE */
+
+void lwip_socket_init(void);
+
+int lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen);
+int lwip_bind(int s, const struct sockaddr *name, socklen_t namelen);
+int lwip_shutdown(int s, int how);
+int lwip_getpeername (int s, struct sockaddr *name, socklen_t *namelen);
+int lwip_getsockname (int s, struct sockaddr *name, socklen_t *namelen);
+int lwip_getsockopt (int s, int level, int optname, void *optval, socklen_t *optlen);
+int lwip_setsockopt (int s, int level, int optname, const void *optval, socklen_t optlen);
+int lwip_close(int s);
+int lwip_connect(int s, const struct sockaddr *name, socklen_t namelen);
+int lwip_listen(int s, int backlog);
+int lwip_recv(int s, void *mem, size_t len, int flags);
+int lwip_read(int s, void *mem, size_t len);
+int lwip_recvfrom(int s, void *mem, size_t len, int flags,
+      struct sockaddr *from, socklen_t *fromlen);
+int lwip_send(int s, const void *dataptr, size_t size, int flags);
+int lwip_sendto(int s, const void *dataptr, size_t size, int flags,
+    const struct sockaddr *to, socklen_t tolen);
+int lwip_socket(int domain, int type, int protocol);
+int lwip_write(int s, const void *dataptr, size_t size);
+int lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,
+                struct timeval *timeout);
+int lwip_ioctl(int s, long cmd, void *argp);
+int lwip_fcntl(int s, int cmd, int val);
+
+#if LWIP_COMPAT_SOCKETS
+#define accept(a,b,c)         lwip_accept(a,b,c)
+#define bind(a,b,c)           lwip_bind(a,b,c)
+#define shutdown(a,b)         lwip_shutdown(a,b)
+#define closesocket(s)        lwip_close(s)
+#define connect(a,b,c)        lwip_connect(a,b,c)
+#define getsockname(a,b,c)    lwip_getsockname(a,b,c)
+#define getpeername(a,b,c)    lwip_getpeername(a,b,c)
+#define setsockopt(a,b,c,d,e) lwip_setsockopt(a,b,c,d,e)
+#define getsockopt(a,b,c,d,e) lwip_getsockopt(a,b,c,d,e)
+#define listen(a,b)           lwip_listen(a,b)
+#define recv(a,b,c,d)         lwip_recv(a,b,c,d)
+#define recvfrom(a,b,c,d,e,f) lwip_recvfrom(a,b,c,d,e,f)
+#define send(a,b,c,d)         lwip_send(a,b,c,d)
+#define sendto(a,b,c,d,e,f)   lwip_sendto(a,b,c,d,e,f)
+#define socket(a,b,c)         lwip_socket(a,b,c)
+#define select(a,b,c,d,e)     lwip_select(a,b,c,d,e)
+#define ioctlsocket(a,b,c)    lwip_ioctl(a,b,c)
+
+#if LWIP_POSIX_SOCKETS_IO_NAMES
+#define read(a,b,c)           lwip_read(a,b,c)
+#define write(a,b,c)          lwip_write(a,b,c)
+#define close(s)              lwip_close(s)
+#endif /* LWIP_POSIX_SOCKETS_IO_NAMES */
+
+#endif /* LWIP_COMPAT_SOCKETS */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_SOCKET */
+
+#endif /* __LWIP_SOCKETS_H__ */

app/include/lwip/stats.h

@@ -0,0 +1,292 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_STATS_H__
+#define __LWIP_STATS_H__
+
+#include "lwip/opt.h"
+
+#include "lwip/mem.h"
+#include "lwip/memp.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if LWIP_STATS
+
+#ifndef LWIP_STATS_LARGE
+#define LWIP_STATS_LARGE 0
+#endif
+
+#if LWIP_STATS_LARGE
+#define STAT_COUNTER     u32_t
+#define STAT_COUNTER_F   U32_F
+#else
+#define STAT_COUNTER     u16_t
+#define STAT_COUNTER_F   U16_F
+#endif 
+
+struct stats_proto {
+  STAT_COUNTER xmit;             /* Transmitted packets. */
+  STAT_COUNTER recv;             /* Received packets. */
+  STAT_COUNTER fw;               /* Forwarded packets. */
+  STAT_COUNTER drop;             /* Dropped packets. */
+  STAT_COUNTER chkerr;           /* Checksum error. */
+  STAT_COUNTER lenerr;           /* Invalid length error. */
+  STAT_COUNTER memerr;           /* Out of memory error. */
+  STAT_COUNTER rterr;            /* Routing error. */
+  STAT_COUNTER proterr;          /* Protocol error. */
+  STAT_COUNTER opterr;           /* Error in options. */
+  STAT_COUNTER err;              /* Misc error. */
+  STAT_COUNTER cachehit;
+};
+
+struct stats_igmp {
+  STAT_COUNTER xmit;             /* Transmitted packets. */
+  STAT_COUNTER recv;             /* Received packets. */
+  STAT_COUNTER drop;             /* Dropped packets. */
+  STAT_COUNTER chkerr;           /* Checksum error. */
+  STAT_COUNTER lenerr;           /* Invalid length error. */
+  STAT_COUNTER memerr;           /* Out of memory error. */
+  STAT_COUNTER proterr;          /* Protocol error. */
+  STAT_COUNTER rx_v1;            /* Received v1 frames. */
+  STAT_COUNTER rx_group;         /* Received group-specific queries. */
+  STAT_COUNTER rx_general;       /* Received general queries. */
+  STAT_COUNTER rx_report;        /* Received reports. */
+  STAT_COUNTER tx_join;          /* Sent joins. */
+  STAT_COUNTER tx_leave;         /* Sent leaves. */
+  STAT_COUNTER tx_report;        /* Sent reports. */
+};
+
+struct stats_mem {
+#ifdef LWIP_DEBUG
+  const char *name;
+#endif /* LWIP_DEBUG */
+  mem_size_t avail;
+  mem_size_t used;
+  mem_size_t max;
+  STAT_COUNTER err;
+  STAT_COUNTER illegal;
+};
+
+struct stats_syselem {
+  STAT_COUNTER used;
+  STAT_COUNTER max;
+  STAT_COUNTER err;
+};
+
+struct stats_sys {
+  struct stats_syselem sem;
+  struct stats_syselem mutex;
+  struct stats_syselem mbox;
+};
+
+struct stats_ {
+#if LINK_STATS
+  struct stats_proto link;
+#endif
+#if ETHARP_STATS
+  struct stats_proto etharp;
+#endif
+#if IPFRAG_STATS
+  struct stats_proto ip_frag;
+#endif
+#if IP_STATS
+  struct stats_proto ip;
+#endif
+#if ICMP_STATS
+  struct stats_proto icmp;
+#endif
+#if IGMP_STATS
+  struct stats_igmp igmp;
+#endif
+#if UDP_STATS
+  struct stats_proto udp;
+#endif
+#if TCP_STATS
+  struct stats_proto tcp;
+#endif
+#if MEM_STATS
+  struct stats_mem mem;
+#endif
+#if MEMP_STATS
+  struct stats_mem memp[MEMP_MAX];
+#endif
+#if SYS_STATS
+  struct stats_sys sys;
+#endif
+};
+
+extern struct stats_ lwip_stats;
+
+void stats_init(void)ICACHE_FLASH_ATTR;
+
+#define STATS_INC(x) ++lwip_stats.x
+#define STATS_DEC(x) --lwip_stats.x
+#define STATS_INC_USED(x, y) do { lwip_stats.x.used += y; \
+                                if (lwip_stats.x.max < lwip_stats.x.used) { \
+                                    lwip_stats.x.max = lwip_stats.x.used; \
+                                } \
+                             } while(0)
+#else /* LWIP_STATS */
+#define stats_init()
+#define STATS_INC(x)
+#define STATS_DEC(x)
+#define STATS_INC_USED(x)
+#endif /* LWIP_STATS */
+
+#if TCP_STATS
+#define TCP_STATS_INC(x) STATS_INC(x)
+#define TCP_STATS_DISPLAY() stats_display_proto(&lwip_stats.tcp, "TCP")
+#else
+#define TCP_STATS_INC(x)
+#define TCP_STATS_DISPLAY()
+#endif
+
+#if UDP_STATS
+#define UDP_STATS_INC(x) STATS_INC(x)
+#define UDP_STATS_DISPLAY() stats_display_proto(&lwip_stats.udp, "UDP")
+#else
+#define UDP_STATS_INC(x)
+#define UDP_STATS_DISPLAY()
+#endif
+
+#if ICMP_STATS
+#define ICMP_STATS_INC(x) STATS_INC(x)
+#define ICMP_STATS_DISPLAY() stats_display_proto(&lwip_stats.icmp, "ICMP")
+#else
+#define ICMP_STATS_INC(x)
+#define ICMP_STATS_DISPLAY()
+#endif
+
+#if IGMP_STATS
+#define IGMP_STATS_INC(x) STATS_INC(x)
+#define IGMP_STATS_DISPLAY() stats_display_igmp(&lwip_stats.igmp)
+#else
+#define IGMP_STATS_INC(x)
+#define IGMP_STATS_DISPLAY()
+#endif
+
+#if IP_STATS
+#define IP_STATS_INC(x) STATS_INC(x)
+#define IP_STATS_DISPLAY() stats_display_proto(&lwip_stats.ip, "IP")
+#else
+#define IP_STATS_INC(x)
+#define IP_STATS_DISPLAY()
+#endif
+
+#if IPFRAG_STATS
+#define IPFRAG_STATS_INC(x) STATS_INC(x)
+#define IPFRAG_STATS_DISPLAY() stats_display_proto(&lwip_stats.ip_frag, "IP_FRAG")
+#else
+#define IPFRAG_STATS_INC(x)
+#define IPFRAG_STATS_DISPLAY()
+#endif
+
+#if ETHARP_STATS
+#define ETHARP_STATS_INC(x) STATS_INC(x)
+#define ETHARP_STATS_DISPLAY() stats_display_proto(&lwip_stats.etharp, "ETHARP")
+#else
+#define ETHARP_STATS_INC(x)
+#define ETHARP_STATS_DISPLAY()
+#endif
+
+#if LINK_STATS
+#define LINK_STATS_INC(x) STATS_INC(x)
+#define LINK_STATS_DISPLAY() stats_display_proto(&lwip_stats.link, "LINK")
+#else
+#define LINK_STATS_INC(x)
+#define LINK_STATS_DISPLAY()
+#endif
+
+#if MEM_STATS
+#define MEM_STATS_AVAIL(x, y) lwip_stats.mem.x = y
+#define MEM_STATS_INC(x) STATS_INC(mem.x)
+#define MEM_STATS_INC_USED(x, y) STATS_INC_USED(mem, y)
+#define MEM_STATS_DEC_USED(x, y) lwip_stats.mem.x -= y
+#define MEM_STATS_DISPLAY() stats_display_mem(&lwip_stats.mem, "HEAP")
+#else
+#define MEM_STATS_AVAIL(x, y)
+#define MEM_STATS_INC(x)
+#define MEM_STATS_INC_USED(x, y)
+#define MEM_STATS_DEC_USED(x, y)
+#define MEM_STATS_DISPLAY()
+#endif
+
+#if MEMP_STATS
+#define MEMP_STATS_AVAIL(x, i, y) lwip_stats.memp[i].x = y
+#define MEMP_STATS_INC(x, i) STATS_INC(memp[i].x)
+#define MEMP_STATS_DEC(x, i) STATS_DEC(memp[i].x)
+#define MEMP_STATS_INC_USED(x, i) STATS_INC_USED(memp[i], 1)
+#define MEMP_STATS_DISPLAY(i) stats_display_memp(&lwip_stats.memp[i], i)
+#else
+#define MEMP_STATS_AVAIL(x, i, y)
+#define MEMP_STATS_INC(x, i)
+#define MEMP_STATS_DEC(x, i)
+#define MEMP_STATS_INC_USED(x, i)
+#define MEMP_STATS_DISPLAY(i)
+#endif
+
+#if SYS_STATS
+#define SYS_STATS_INC(x) STATS_INC(sys.x)
+#define SYS_STATS_DEC(x) STATS_DEC(sys.x)
+#define SYS_STATS_INC_USED(x) STATS_INC_USED(sys.x, 1)
+#define SYS_STATS_DISPLAY() stats_display_sys(&lwip_stats.sys)
+#else
+#define SYS_STATS_INC(x)
+#define SYS_STATS_DEC(x)
+#define SYS_STATS_INC_USED(x)
+#define SYS_STATS_DISPLAY()
+#endif
+
+/* Display of statistics */
+#if LWIP_STATS_DISPLAY
+void stats_display(void)ICACHE_FLASH_ATTR;
+void stats_display_proto(struct stats_proto *proto, char *name)ICACHE_FLASH_ATTR;
+void stats_display_igmp(struct stats_igmp *igmp)ICACHE_FLASH_ATTR;
+void stats_display_mem(struct stats_mem *mem, char *name)ICACHE_FLASH_ATTR;
+void stats_display_memp(struct stats_mem *mem, int index)ICACHE_FLASH_ATTR;
+void stats_display_sys(struct stats_sys *sys)ICACHE_FLASH_ATTR;
+#else /* LWIP_STATS_DISPLAY */
+#define stats_display()
+#define stats_display_proto(proto, name)
+#define stats_display_igmp(igmp)
+#define stats_display_mem(mem, name)
+#define stats_display_memp(mem, index)
+#define stats_display_sys(sys)
+#endif /* LWIP_STATS_DISPLAY */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_STATS_H__ */

app/include/lwip/sys.h

@@ -0,0 +1,337 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_SYS_H__
+#define __LWIP_SYS_H__
+
+#include "lwip/opt.h"
+
+#include "eagle_soc.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if NO_SYS
+
+/* For a totally minimal and standalone system, we provide null
+   definitions of the sys_ functions. */
+typedef u8_t sys_sem_t;
+typedef u8_t sys_mutex_t;
+typedef u8_t sys_mbox_t;
+
+#define sys_sem_new(s, c) ERR_OK
+#define sys_sem_signal(s)
+#define sys_sem_wait(s)
+#define sys_arch_sem_wait(s,t)
+#define sys_sem_free(s)
+#define sys_mutex_new(mu) ERR_OK
+#define sys_mutex_lock(mu)
+#define sys_mutex_unlock(mu)
+#define sys_mutex_free(mu)
+#define sys_mbox_new(m, s) ERR_OK
+#define sys_mbox_fetch(m,d)
+#define sys_mbox_tryfetch(m,d)
+#define sys_mbox_post(m,d)
+#define sys_mbox_trypost(m,d)
+#define sys_mbox_free(m)
+
+#define sys_thread_new(n,t,a,s,p)
+
+#define sys_msleep(t)
+
+#else /* NO_SYS */
+
+/** Return code for timeouts from sys_arch_mbox_fetch and sys_arch_sem_wait */
+#define SYS_ARCH_TIMEOUT 0xffffffffUL
+
+/** sys_mbox_tryfetch() returns SYS_MBOX_EMPTY if appropriate.
+ * For now we use the same magic value, but we allow this to change in future.
+ */
+#define SYS_MBOX_EMPTY SYS_ARCH_TIMEOUT 
+
+#include "lwip/err.h"
+#include "arch/sys_arch.h"
+
+/** Function prototype for thread functions */
+typedef void (*lwip_thread_fn)(void *arg);
+
+/* Function prototypes for functions to be implemented by platform ports
+   (in sys_arch.c) */
+
+/* Mutex functions: */
+
+/** Define LWIP_COMPAT_MUTEX if the port has no mutexes and binary semaphores
+    should be used instead */
+#if LWIP_COMPAT_MUTEX
+/* for old ports that don't have mutexes: define them to binary semaphores */
+#define sys_mutex_t                   sys_sem_t
+#define sys_mutex_new(mutex)          sys_sem_new(mutex, 1)
+#define sys_mutex_lock(mutex)         sys_sem_wait(mutex)
+#define sys_mutex_unlock(mutex)       sys_sem_signal(mutex)
+#define sys_mutex_free(mutex)         sys_sem_free(mutex)
+#define sys_mutex_valid(mutex)        sys_sem_valid(mutex)
+#define sys_mutex_set_invalid(mutex)  sys_sem_set_invalid(mutex)
+
+#else /* LWIP_COMPAT_MUTEX */
+
+/** Create a new mutex
+ * @param mutex pointer to the mutex to create
+ * @return a new mutex */
+err_t sys_mutex_new(sys_mutex_t *mutex);
+/** Lock a mutex
+ * @param mutex the mutex to lock */
+void sys_mutex_lock(sys_mutex_t *mutex);
+/** Unlock a mutex
+ * @param mutex the mutex to unlock */
+void sys_mutex_unlock(sys_mutex_t *mutex);
+/** Delete a semaphore
+ * @param mutex the mutex to delete */
+void sys_mutex_free(sys_mutex_t *mutex); 
+#ifndef sys_mutex_valid
+/** Check if a mutex is valid/allocated: return 1 for valid, 0 for invalid */
+int sys_mutex_valid(sys_mutex_t *mutex);
+#endif
+#ifndef sys_mutex_set_invalid
+/** Set a mutex invalid so that sys_mutex_valid returns 0 */
+void sys_mutex_set_invalid(sys_mutex_t *mutex);
+#endif
+#endif /* LWIP_COMPAT_MUTEX */
+
+/* Semaphore functions: */
+
+/** Create a new semaphore
+ * @param sem pointer to the semaphore to create
+ * @param count initial count of the semaphore
+ * @return ERR_OK if successful, another err_t otherwise */
+err_t sys_sem_new(sys_sem_t *sem, u8_t count);
+/** Signals a semaphore
+ * @param sem the semaphore to signal */
+void sys_sem_signal(sys_sem_t *sem);
+/** Wait for a semaphore for the specified timeout
+ * @param sem the semaphore to wait for
+ * @param timeout timeout in milliseconds to wait (0 = wait forever)
+ * @return time (in milliseconds) waited for the semaphore
+ *         or SYS_ARCH_TIMEOUT on timeout */
+u32_t sys_arch_sem_wait(sys_sem_t *sem, u32_t timeout);
+/** Delete a semaphore
+ * @param sem semaphore to delete */
+void sys_sem_free(sys_sem_t *sem);
+/** Wait for a semaphore - forever/no timeout */
+#define sys_sem_wait(sem)                  sys_arch_sem_wait(sem, 0)
+#ifndef sys_sem_valid
+/** Check if a sempahore is valid/allocated: return 1 for valid, 0 for invalid */
+int sys_sem_valid(sys_sem_t *sem);
+#endif
+#ifndef sys_sem_set_invalid
+/** Set a semaphore invalid so that sys_sem_valid returns 0 */
+void sys_sem_set_invalid(sys_sem_t *sem);
+#endif
+
+/* Time functions. */
+#ifndef sys_msleep
+void sys_msleep(u32_t ms); /* only has a (close to) 1 jiffy resolution. */
+#endif
+
+/* Mailbox functions. */
+
+/** Create a new mbox of specified size
+ * @param mbox pointer to the mbox to create
+ * @param size (miminum) number of messages in this mbox
+ * @return ERR_OK if successful, another err_t otherwise */
+err_t sys_mbox_new(sys_mbox_t *mbox, int size);
+/** Post a message to an mbox - may not fail
+ * -> blocks if full, only used from tasks not from ISR
+ * @param mbox mbox to posts the message
+ * @param msg message to post (ATTENTION: can be NULL) */
+void sys_mbox_post(sys_mbox_t *mbox, void *msg);
+/** Try to post a message to an mbox - may fail if full or ISR
+ * @param mbox mbox to posts the message
+ * @param msg message to post (ATTENTION: can be NULL) */
+err_t sys_mbox_trypost(sys_mbox_t *mbox, void *msg);
+/** Wait for a new message to arrive in the mbox
+ * @param mbox mbox to get a message from
+ * @param msg pointer where the message is stored
+ * @param timeout maximum time (in milliseconds) to wait for a message
+ * @return time (in milliseconds) waited for a message, may be 0 if not waited
+           or SYS_ARCH_TIMEOUT on timeout
+ *         The returned time has to be accurate to prevent timer jitter! */
+u32_t sys_arch_mbox_fetch(sys_mbox_t *mbox, void **msg, u32_t timeout);
+/* Allow port to override with a macro, e.g. special timout for sys_arch_mbox_fetch() */
+#ifndef sys_arch_mbox_tryfetch
+/** Wait for a new message to arrive in the mbox
+ * @param mbox mbox to get a message from
+ * @param msg pointer where the message is stored
+ * @param timeout maximum time (in milliseconds) to wait for a message
+ * @return 0 (milliseconds) if a message has been received
+ *         or SYS_MBOX_EMPTY if the mailbox is empty */
+u32_t sys_arch_mbox_tryfetch(sys_mbox_t *mbox, void **msg);
+#endif
+/** For now, we map straight to sys_arch implementation. */
+#define sys_mbox_tryfetch(mbox, msg) sys_arch_mbox_tryfetch(mbox, msg)
+/** Delete an mbox
+ * @param mbox mbox to delete */
+void sys_mbox_free(sys_mbox_t *mbox);
+#define sys_mbox_fetch(mbox, msg) sys_arch_mbox_fetch(mbox, msg, 0)
+#ifndef sys_mbox_valid
+/** Check if an mbox is valid/allocated: return 1 for valid, 0 for invalid */
+int sys_mbox_valid(sys_mbox_t *mbox);
+#endif
+#ifndef sys_mbox_set_invalid
+/** Set an mbox invalid so that sys_mbox_valid returns 0 */
+void sys_mbox_set_invalid(sys_mbox_t *mbox);
+#endif
+
+/** The only thread function:
+ * Creates a new thread
+ * @param name human-readable name for the thread (used for debugging purposes)
+ * @param thread thread-function
+ * @param arg parameter passed to 'thread'
+ * @param stacksize stack size in bytes for the new thread (may be ignored by ports)
+ * @param prio priority of the new thread (may be ignored by ports) */
+sys_thread_t sys_thread_new(const char *name, lwip_thread_fn thread, void *arg, int stacksize, int prio);
+
+#endif /* NO_SYS */
+
+/* sys_init() must be called before anthing else. */
+void sys_init(void)ICACHE_FLASH_ATTR;
+
+#ifndef sys_jiffies
+/** Ticks/jiffies since power up. */
+u32_t sys_jiffies(void)ICACHE_FLASH_ATTR;
+#endif
+
+/** Returns the current time in milliseconds,
+ * may be the same as sys_jiffies or at least based on it. */
+static inline u32_t sys_now(void) ICACHE_FLASH_ATTR;
+static inline u32_t sys_now(void)
+{
+	return NOW()/(TIMER_CLK_FREQ/1000);
+}
+
+/* Critical Region Protection */
+/* These functions must be implemented in the sys_arch.c file.
+   In some implementations they can provide a more light-weight protection
+   mechanism than using semaphores. Otherwise semaphores can be used for
+   implementation */
+#ifndef SYS_ARCH_PROTECT
+/** SYS_LIGHTWEIGHT_PROT
+ * define SYS_LIGHTWEIGHT_PROT in lwipopts.h if you want inter-task protection
+ * for certain critical regions during buffer allocation, deallocation and memory
+ * allocation and deallocation.
+ */
+#if SYS_LIGHTWEIGHT_PROT
+
+/** SYS_ARCH_DECL_PROTECT
+ * declare a protection variable. This macro will default to defining a variable of
+ * type sys_prot_t. If a particular port needs a different implementation, then
+ * this macro may be defined in sys_arch.h.
+ */
+#define SYS_ARCH_DECL_PROTECT(lev) sys_prot_t lev
+/** SYS_ARCH_PROTECT
+ * Perform a "fast" protect. This could be implemented by
+ * disabling interrupts for an embedded system or by using a semaphore or
+ * mutex. The implementation should allow calling SYS_ARCH_PROTECT when
+ * already protected. The old protection level is returned in the variable
+ * "lev". This macro will default to calling the sys_arch_protect() function
+ * which should be implemented in sys_arch.c. If a particular port needs a
+ * different implementation, then this macro may be defined in sys_arch.h
+ */
+#define SYS_ARCH_PROTECT(lev) lev = sys_arch_protect()
+/** SYS_ARCH_UNPROTECT
+ * Perform a "fast" set of the protection level to "lev". This could be
+ * implemented by setting the interrupt level to "lev" within the MACRO or by
+ * using a semaphore or mutex.  This macro will default to calling the
+ * sys_arch_unprotect() function which should be implemented in
+ * sys_arch.c. If a particular port needs a different implementation, then
+ * this macro may be defined in sys_arch.h
+ */
+#define SYS_ARCH_UNPROTECT(lev) sys_arch_unprotect(lev)
+sys_prot_t sys_arch_protect(void)ICACHE_FLASH_ATTR;
+void sys_arch_unprotect(sys_prot_t pval)ICACHE_FLASH_ATTR;
+
+#else
+
+#define SYS_ARCH_DECL_PROTECT(lev)
+#define SYS_ARCH_PROTECT(lev) lev = os_intr_lock()	//fix by ives at 2014.3.24
+#define SYS_ARCH_UNPROTECT(lev) lev = os_intr_unlock()
+
+#endif /* SYS_LIGHTWEIGHT_PROT */
+
+#endif /* SYS_ARCH_PROTECT */
+
+/*
+ * Macros to set/get and increase/decrease variables in a thread-safe way.
+ * Use these for accessing variable that are used from more than one thread.
+ */
+
+#ifndef SYS_ARCH_INC
+#define SYS_ARCH_INC(var, val) do { \
+                                SYS_ARCH_DECL_PROTECT(old_level); \
+                                SYS_ARCH_PROTECT(old_level); \
+                                var += val; \
+                                SYS_ARCH_UNPROTECT(old_level); \
+                              } while(0)
+#endif /* SYS_ARCH_INC */
+
+#ifndef SYS_ARCH_DEC
+#define SYS_ARCH_DEC(var, val) do { \
+                                SYS_ARCH_DECL_PROTECT(old_level); \
+                                SYS_ARCH_PROTECT(old_level); \
+                                var -= val; \
+                                SYS_ARCH_UNPROTECT(old_level); \
+                              } while(0)
+#endif /* SYS_ARCH_DEC */
+
+#ifndef SYS_ARCH_GET
+#define SYS_ARCH_GET(var, ret) do { \
+                                SYS_ARCH_DECL_PROTECT(old_level); \
+                                SYS_ARCH_PROTECT(old_level); \
+                                ret = var; \
+                                SYS_ARCH_UNPROTECT(old_level); \
+                              } while(0)
+#endif /* SYS_ARCH_GET */
+
+#ifndef SYS_ARCH_SET
+#define SYS_ARCH_SET(var, val) do { \
+                                SYS_ARCH_DECL_PROTECT(old_level); \
+                                SYS_ARCH_PROTECT(old_level); \
+                                var = val; \
+                                SYS_ARCH_UNPROTECT(old_level); \
+                              } while(0)
+#endif /* SYS_ARCH_SET */
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_SYS_H__ */

app/include/lwip/tcp.h

@@ -0,0 +1,377 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_TCP_H__
+#define __LWIP_TCP_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_TCP /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/sys.h"
+#include "lwip/mem.h"
+#include "lwip/pbuf.h"
+#include "lwip/ip.h"
+#include "lwip/icmp.h"
+#include "lwip/err.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct tcp_pcb;
+
+/** Function prototype for tcp accept callback functions. Called when a new
+ * connection can be accepted on a listening pcb.
+ *
+ * @param arg Additional argument to pass to the callback function (@see tcp_arg())
+ * @param newpcb The new connection pcb
+ * @param err An error code if there has been an error accepting.
+ *            Only return ERR_ABRT if you have called tcp_abort from within the
+ *            callback function!
+ */
+typedef err_t (*tcp_accept_fn)(void *arg, struct tcp_pcb *newpcb, err_t err);
+
+/** Function prototype for tcp receive callback functions. Called when data has
+ * been received.
+ *
+ * @param arg Additional argument to pass to the callback function (@see tcp_arg())
+ * @param tpcb The connection pcb which received data
+ * @param p The received data (or NULL when the connection has been closed!)
+ * @param err An error code if there has been an error receiving
+ *            Only return ERR_ABRT if you have called tcp_abort from within the
+ *            callback function!
+ */
+typedef err_t (*tcp_recv_fn)(void *arg, struct tcp_pcb *tpcb,
+                             struct pbuf *p, err_t err);
+
+/** Function prototype for tcp sent callback functions. Called when sent data has
+ * been acknowledged by the remote side. Use it to free corresponding resources.
+ * This also means that the pcb has now space available to send new data.
+ *
+ * @param arg Additional argument to pass to the callback function (@see tcp_arg())
+ * @param tpcb The connection pcb for which data has been acknowledged
+ * @param len The amount of bytes acknowledged
+ * @return ERR_OK: try to send some data by calling tcp_output
+ *            Only return ERR_ABRT if you have called tcp_abort from within the
+ *            callback function!
+ */
+typedef err_t (*tcp_sent_fn)(void *arg, struct tcp_pcb *tpcb,
+                              u16_t len);
+
+/** Function prototype for tcp poll callback functions. Called periodically as
+ * specified by @see tcp_poll.
+ *
+ * @param arg Additional argument to pass to the callback function (@see tcp_arg())
+ * @param tpcb tcp pcb
+ * @return ERR_OK: try to send some data by calling tcp_output
+ *            Only return ERR_ABRT if you have called tcp_abort from within the
+ *            callback function!
+ */
+typedef err_t (*tcp_poll_fn)(void *arg, struct tcp_pcb *tpcb);
+
+/** Function prototype for tcp error callback functions. Called when the pcb
+ * receives a RST or is unexpectedly closed for any other reason.
+ *
+ * @note The corresponding pcb is already freed when this callback is called!
+ *
+ * @param arg Additional argument to pass to the callback function (@see tcp_arg())
+ * @param err Error code to indicate why the pcb has been closed
+ *            ERR_ABRT: aborted through tcp_abort or by a TCP timer
+ *            ERR_RST: the connection was reset by the remote host
+ */
+typedef void  (*tcp_err_fn)(void *arg, err_t err);
+
+/** Function prototype for tcp connected callback functions. Called when a pcb
+ * is connected to the remote side after initiating a connection attempt by
+ * calling tcp_connect().
+ *
+ * @param arg Additional argument to pass to the callback function (@see tcp_arg())
+ * @param tpcb The connection pcb which is connected
+ * @param err An unused error code, always ERR_OK currently ;-) TODO!
+ *            Only return ERR_ABRT if you have called tcp_abort from within the
+ *            callback function!
+ *
+ * @note When a connection attempt fails, the error callback is currently called!
+ */
+typedef err_t (*tcp_connected_fn)(void *arg, struct tcp_pcb *tpcb, err_t err);
+
+enum tcp_state {
+  CLOSED      = 0,
+  LISTEN      = 1,
+  SYN_SENT    = 2,
+  SYN_RCVD    = 3,
+  ESTABLISHED = 4,
+  FIN_WAIT_1  = 5,
+  FIN_WAIT_2  = 6,
+  CLOSE_WAIT  = 7,
+  CLOSING     = 8,
+  LAST_ACK    = 9,
+  TIME_WAIT   = 10
+};
+
+#if LWIP_CALLBACK_API
+  /* Function to call when a listener has been connected.
+   * @param arg user-supplied argument (tcp_pcb.callback_arg)
+   * @param pcb a new tcp_pcb that now is connected
+   * @param err an error argument (TODO: that is current always ERR_OK?)
+   * @return ERR_OK: accept the new connection,
+   *                 any other err_t abortsthe new connection
+   */
+#define DEF_ACCEPT_CALLBACK  tcp_accept_fn accept;
+#else /* LWIP_CALLBACK_API */
+#define DEF_ACCEPT_CALLBACK
+#endif /* LWIP_CALLBACK_API */
+
+/**
+ * members common to struct tcp_pcb and struct tcp_listen_pcb
+ */
+#define TCP_PCB_COMMON(type) \
+  type *next; /* for the linked list */ \
+  enum tcp_state state; /* TCP state */ \
+  u8_t prio; \
+  void *callback_arg; \
+  /* the accept callback for listen- and normal pcbs, if LWIP_CALLBACK_API */ \
+  DEF_ACCEPT_CALLBACK \
+  /* ports are in host byte order */ \
+  u16_t local_port
+
+
+/* the TCP protocol control block */
+struct tcp_pcb {
+/** common PCB members */
+  IP_PCB;
+/** protocol specific PCB members */
+  TCP_PCB_COMMON(struct tcp_pcb);
+
+  /* ports are in host byte order */
+  u16_t remote_port;
+  
+  u8_t flags;
+#define TF_ACK_DELAY   ((u8_t)0x01U)   /* Delayed ACK. */
+#define TF_ACK_NOW     ((u8_t)0x02U)   /* Immediate ACK. */
+#define TF_INFR        ((u8_t)0x04U)   /* In fast recovery. */
+#define TF_TIMESTAMP   ((u8_t)0x08U)   /* Timestamp option enabled */
+#define TF_RXCLOSED    ((u8_t)0x10U)   /* rx closed by tcp_shutdown */
+#define TF_FIN         ((u8_t)0x20U)   /* Connection was closed locally (FIN segment enqueued). */
+#define TF_NODELAY     ((u8_t)0x40U)   /* Disable Nagle algorithm */
+#define TF_NAGLEMEMERR ((u8_t)0x80U)   /* nagle enabled, memerr, try to output to prevent delayed ACK to happen */
+
+  /* the rest of the fields are in host byte order
+     as we have to do some math with them */
+  /* receiver variables */
+  u32_t rcv_nxt;   /* next seqno expected */
+  u16_t rcv_wnd;   /* receiver window available */
+  u16_t rcv_ann_wnd; /* receiver window to announce */
+  u32_t rcv_ann_right_edge; /* announced right edge of window */
+
+  /* Timers */
+  u32_t tmr;
+  u8_t polltmr, pollinterval;
+  
+  /* Retransmission timer. */
+  s16_t rtime;
+  
+  u16_t mss;   /* maximum segment size */
+  
+  /* RTT (round trip time) estimation variables */
+  u32_t rttest; /* RTT estimate in 500ms ticks */
+  u32_t rtseq;  /* sequence number being timed */
+  s16_t sa, sv; /* @todo document this */
+
+  s16_t rto;    /* retransmission time-out */
+  u8_t nrtx;    /* number of retransmissions */
+
+  /* fast retransmit/recovery */
+  u32_t lastack; /* Highest acknowledged seqno. */
+  u8_t dupacks;
+  
+  /* congestion avoidance/control variables */
+  u16_t cwnd;  
+  u16_t ssthresh;
+
+  /* sender variables */
+  u32_t snd_nxt;   /* next new seqno to be sent */
+  u16_t snd_wnd;   /* sender window */
+  u32_t snd_wl1, snd_wl2; /* Sequence and acknowledgement numbers of last
+                             window update. */
+  u32_t snd_lbb;       /* Sequence number of next byte to be buffered. */
+
+  u16_t acked;
+  
+  u16_t snd_buf;   /* Available buffer space for sending (in bytes). */
+#define TCP_SNDQUEUELEN_OVERFLOW (0xffff-3)
+  u16_t snd_queuelen; /* Available buffer space for sending (in tcp_segs). */
+
+#if TCP_OVERSIZE
+  /* Extra bytes available at the end of the last pbuf in unsent. */
+  u16_t unsent_oversize;
+#endif /* TCP_OVERSIZE */ 
+
+  /* These are ordered by sequence number: */
+  struct tcp_seg *unsent;   /* Unsent (queued) segments. */
+  struct tcp_seg *unacked;  /* Sent but unacknowledged segments. */
+#if TCP_QUEUE_OOSEQ  
+  struct tcp_seg *ooseq;    /* Received out of sequence segments. */
+#endif /* TCP_QUEUE_OOSEQ */
+
+  struct pbuf *refused_data; /* Data previously received but not yet taken by upper layer */
+
+#if LWIP_CALLBACK_API
+  /* Function to be called when more send buffer space is available. */
+  tcp_sent_fn sent;
+  /* Function to be called when (in-sequence) data has arrived. */
+  tcp_recv_fn recv;
+  /* Function to be called when a connection has been set up. */
+  tcp_connected_fn connected;
+  /* Function which is called periodically. */
+  tcp_poll_fn poll;
+  /* Function to be called whenever a fatal error occurs. */
+  tcp_err_fn errf;
+#endif /* LWIP_CALLBACK_API */
+
+#if LWIP_TCP_TIMESTAMPS
+  u32_t ts_lastacksent;
+  u32_t ts_recent;
+#endif /* LWIP_TCP_TIMESTAMPS */
+
+  /* idle time before KEEPALIVE is sent */
+  u32_t keep_idle;
+#if LWIP_TCP_KEEPALIVE
+  u32_t keep_intvl;
+  u32_t keep_cnt;
+#endif /* LWIP_TCP_KEEPALIVE */
+  
+  /* Persist timer counter */
+  u32_t persist_cnt;
+  /* Persist timer back-off */
+  u8_t persist_backoff;
+
+  /* KEEPALIVE counter */
+  u8_t keep_cnt_sent;
+};
+
+struct tcp_pcb_listen {  
+/* Common members of all PCB types */
+  IP_PCB;
+/* Protocol specific PCB members */
+  TCP_PCB_COMMON(struct tcp_pcb_listen);
+
+#if TCP_LISTEN_BACKLOG
+  u8_t backlog;
+  u8_t accepts_pending;
+#endif /* TCP_LISTEN_BACKLOG */
+};
+
+#if LWIP_EVENT_API
+
+enum lwip_event {
+  LWIP_EVENT_ACCEPT,
+  LWIP_EVENT_SENT,
+  LWIP_EVENT_RECV,
+  LWIP_EVENT_CONNECTED,
+  LWIP_EVENT_POLL,
+  LWIP_EVENT_ERR
+};
+
+err_t lwip_tcp_event(void *arg, struct tcp_pcb *pcb,
+         enum lwip_event,
+         struct pbuf *p,
+         u16_t size,
+         err_t err);
+
+#endif /* LWIP_EVENT_API */
+
+/* Application program's interface: */
+struct tcp_pcb * tcp_new     (void)ICACHE_FLASH_ATTR;
+
+void             tcp_arg     (struct tcp_pcb *pcb, void *arg) ICACHE_FLASH_ATTR;
+void             tcp_accept  (struct tcp_pcb *pcb, tcp_accept_fn accept) ICACHE_FLASH_ATTR;
+void             tcp_recv    (struct tcp_pcb *pcb, tcp_recv_fn recv) ICACHE_FLASH_ATTR;
+void             tcp_sent    (struct tcp_pcb *pcb, tcp_sent_fn sent)ICACHE_FLASH_ATTR;
+void             tcp_poll    (struct tcp_pcb *pcb, tcp_poll_fn poll, u8_t interval)ICACHE_FLASH_ATTR;
+void             tcp_err     (struct tcp_pcb *pcb, tcp_err_fn err)ICACHE_FLASH_ATTR;
+
+#define          tcp_mss(pcb)             (((pcb)->flags & TF_TIMESTAMP) ? ((pcb)->mss - 12)  : (pcb)->mss)
+#define          tcp_sndbuf(pcb)          ((pcb)->snd_buf)
+#define          tcp_sndqueuelen(pcb)     ((pcb)->snd_queuelen)
+#define          tcp_nagle_disable(pcb)   ((pcb)->flags |= TF_NODELAY)
+#define          tcp_nagle_enable(pcb)    ((pcb)->flags &= ~TF_NODELAY)
+#define          tcp_nagle_disabled(pcb)  (((pcb)->flags & TF_NODELAY) != 0)
+
+#if TCP_LISTEN_BACKLOG
+#define          tcp_accepted(pcb) do { \
+  LWIP_ASSERT("pcb->state == LISTEN (called for wrong pcb?)", pcb->state == LISTEN); \
+  (((struct tcp_pcb_listen *)(pcb))->accepts_pending--); } while(0)
+#else  /* TCP_LISTEN_BACKLOG */
+#define          tcp_accepted(pcb) LWIP_ASSERT("pcb->state == LISTEN (called for wrong pcb?)", \
+                                               pcb->state == LISTEN)
+#endif /* TCP_LISTEN_BACKLOG */
+
+void             tcp_recved  (struct tcp_pcb *pcb, u16_t len)ICACHE_FLASH_ATTR;
+err_t            tcp_bind    (struct tcp_pcb *pcb, ip_addr_t *ipaddr,
+                              u16_t port)ICACHE_FLASH_ATTR;
+err_t            tcp_connect (struct tcp_pcb *pcb, ip_addr_t *ipaddr,
+                              u16_t port, tcp_connected_fn connected)ICACHE_FLASH_ATTR;
+
+struct tcp_pcb * tcp_listen_with_backlog(struct tcp_pcb *pcb, u8_t backlog)ICACHE_FLASH_ATTR;
+#define          tcp_listen(pcb) tcp_listen_with_backlog(pcb, TCP_DEFAULT_LISTEN_BACKLOG)
+
+void             tcp_abort (struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
+err_t            tcp_close   (struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
+err_t            tcp_shutdown(struct tcp_pcb *pcb, int shut_rx, int shut_tx)ICACHE_FLASH_ATTR;
+
+/* Flags for "apiflags" parameter in tcp_write */
+#define TCP_WRITE_FLAG_COPY 0x01
+#define TCP_WRITE_FLAG_MORE 0x02
+
+err_t            tcp_write   (struct tcp_pcb *pcb, const void *dataptr, u16_t len,
+                              u8_t apiflags)ICACHE_FLASH_ATTR;
+
+void             tcp_setprio (struct tcp_pcb *pcb, u8_t prio)ICACHE_FLASH_ATTR;
+
+#define TCP_PRIO_MIN    1
+#define TCP_PRIO_NORMAL 64
+#define TCP_PRIO_MAX    127
+
+extern err_t            tcp_output(struct tcp_pcb *pcb);
+
+
+const char* tcp_debug_state_str(enum tcp_state s)ICACHE_FLASH_ATTR;
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_TCP */
+
+#endif /* __LWIP_TCP_H__ */

app/include/lwip/tcp_impl.h

@@ -0,0 +1,472 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_TCP_IMPL_H__
+#define __LWIP_TCP_IMPL_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_TCP /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/tcp.h"
+#include "lwip/sys.h"
+#include "lwip/mem.h"
+#include "lwip/pbuf.h"
+#include "lwip/ip.h"
+#include "lwip/icmp.h"
+#include "lwip/err.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Functions for interfacing with TCP: */
+
+/* Lower layer interface to TCP: */
+#define tcp_init() /* Compatibility define, no init needed. */
+void             tcp_tmr     (void)ICACHE_FLASH_ATTR;  /* Must be called every
+                                         TCP_TMR_INTERVAL
+                                         ms. (Typically 250 ms). */
+/* It is also possible to call these two functions at the right
+   intervals (instead of calling tcp_tmr()). */
+void             tcp_slowtmr (void)ICACHE_FLASH_ATTR;
+void             tcp_fasttmr (void)ICACHE_FLASH_ATTR;
+
+
+/* Only used by IP to pass a TCP segment to TCP: */
+void             tcp_input   (struct pbuf *p, struct netif *inp)ICACHE_FLASH_ATTR;
+/* Used within the TCP code only: */
+struct tcp_pcb * tcp_alloc   (u8_t prio)ICACHE_FLASH_ATTR;
+void             tcp_abandon (struct tcp_pcb *pcb, int reset)ICACHE_FLASH_ATTR;
+err_t            tcp_send_empty_ack(struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
+void             tcp_rexmit  (struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
+void             tcp_rexmit_rto  (struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
+void             tcp_rexmit_fast (struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
+u32_t            tcp_update_rcv_ann_wnd(struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
+
+/**
+ * This is the Nagle algorithm: try to combine user data to send as few TCP
+ * segments as possible. Only send if
+ * - no previously transmitted data on the connection remains unacknowledged or
+ * - the TF_NODELAY flag is set (nagle algorithm turned off for this pcb) or
+ * - the only unsent segment is at least pcb->mss bytes long (or there is more
+ *   than one unsent segment - with lwIP, this can happen although unsent->len < mss)
+ * - or if we are in fast-retransmit (TF_INFR)
+ */
+#define tcp_do_output_nagle(tpcb) ((((tpcb)->unacked == NULL) || \
+                            ((tpcb)->flags & (TF_NODELAY | TF_INFR)) || \
+                            (((tpcb)->unsent != NULL) && (((tpcb)->unsent->next != NULL) || \
+                              ((tpcb)->unsent->len >= (tpcb)->mss))) \
+                            ) ? 1 : 0)
+#define tcp_output_nagle(tpcb) (tcp_do_output_nagle(tpcb) ? tcp_output(tpcb) : ERR_OK)
+
+
+#define TCP_SEQ_LT(a,b)     ((s32_t)((a)-(b)) < 0)
+#define TCP_SEQ_LEQ(a,b)    ((s32_t)((a)-(b)) <= 0)
+#define TCP_SEQ_GT(a,b)     ((s32_t)((a)-(b)) > 0)
+#define TCP_SEQ_GEQ(a,b)    ((s32_t)((a)-(b)) >= 0)
+/* is b<=a<=c? */
+#if 0 /* see bug #10548 */
+#define TCP_SEQ_BETWEEN(a,b,c) ((c)-(b) >= (a)-(b))
+#endif
+#define TCP_SEQ_BETWEEN(a,b,c) (TCP_SEQ_GEQ(a,b) && TCP_SEQ_LEQ(a,c))
+#define TCP_FIN 0x01U
+#define TCP_SYN 0x02U
+#define TCP_RST 0x04U
+#define TCP_PSH 0x08U
+#define TCP_ACK 0x10U
+#define TCP_URG 0x20U
+#define TCP_ECE 0x40U
+#define TCP_CWR 0x80U
+
+#define TCP_FLAGS 0x3fU
+
+/* Length of the TCP header, excluding options. */
+#define TCP_HLEN 20
+
+#ifndef TCP_TMR_INTERVAL
+#define TCP_TMR_INTERVAL       125  /* The TCP timer interval in milliseconds. */
+#endif /* TCP_TMR_INTERVAL */
+
+#ifndef TCP_FAST_INTERVAL
+#define TCP_FAST_INTERVAL      TCP_TMR_INTERVAL /* the fine grained timeout in milliseconds */
+#endif /* TCP_FAST_INTERVAL */
+
+#ifndef TCP_SLOW_INTERVAL
+#define TCP_SLOW_INTERVAL      (2*TCP_TMR_INTERVAL)  /* the coarse grained timeout in milliseconds */
+#endif /* TCP_SLOW_INTERVAL */
+
+#define TCP_FIN_WAIT_TIMEOUT 20000 /* milliseconds */
+#define TCP_SYN_RCVD_TIMEOUT 20000 /* milliseconds */
+
+#define TCP_OOSEQ_TIMEOUT        6U /* x RTO */
+
+#ifndef TCP_MSL
+#define TCP_MSL 60000UL /* The maximum segment lifetime in milliseconds */
+#endif
+
+/* Keepalive values, compliant with RFC 1122. Don't change this unless you know what you're doing */
+#ifndef  TCP_KEEPIDLE_DEFAULT
+#define  TCP_KEEPIDLE_DEFAULT     3000UL /* Default KEEPALIVE timer in milliseconds */
+#endif
+
+#ifndef  TCP_KEEPINTVL_DEFAULT
+#define  TCP_KEEPINTVL_DEFAULT    1000UL   /* Default Time between KEEPALIVE probes in milliseconds */
+#endif
+
+#ifndef  TCP_KEEPCNT_DEFAULT
+#define  TCP_KEEPCNT_DEFAULT      3U        /* Default Counter for KEEPALIVE probes */
+#endif
+
+#define  TCP_MAXIDLE              TCP_KEEPCNT_DEFAULT * TCP_KEEPINTVL_DEFAULT  /* Maximum KEEPALIVE probe time */
+
+/* Fields are (of course) in network byte order.
+ * Some fields are converted to host byte order in tcp_input().
+ */
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct tcp_hdr {
+  PACK_STRUCT_FIELD(u16_t src);				//Դ<>˿<EFBFBD>
+  PACK_STRUCT_FIELD(u16_t dest);				//Ŀ<>Ķ˿<C4B6>
+  PACK_STRUCT_FIELD(u32_t seqno);			//<2F><><EFBFBD>
+  PACK_STRUCT_FIELD(u32_t ackno);			//Ӧ<><D3A6><EFBFBD><EFBFBD><EFBFBD>
+  PACK_STRUCT_FIELD(u16_t _hdrlen_rsvd_flags);//<2F>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD><EFBFBD>+<2B><><EFBFBD><EFBFBD>λ+<2B><>־λ
+  PACK_STRUCT_FIELD(u16_t wnd);				//<2F><><EFBFBD>ڴ<EFBFBD>С
+  PACK_STRUCT_FIELD(u16_t chksum);			//У<><D0A3><EFBFBD>
+  PACK_STRUCT_FIELD(u16_t urgp);				//<2F><><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+#define TCPH_OFFSET(phdr) (ntohs((phdr)->_hdrlen_rsvd_flags) >> 8)
+#define TCPH_HDRLEN(phdr) (ntohs((phdr)->_hdrlen_rsvd_flags) >> 12)
+#define TCPH_FLAGS(phdr)  (ntohs((phdr)->_hdrlen_rsvd_flags) & TCP_FLAGS)
+
+#define TCPH_OFFSET_SET(phdr, offset) (phdr)->_hdrlen_rsvd_flags = htons(((offset) << 8) | TCPH_FLAGS(phdr))
+#define TCPH_HDRLEN_SET(phdr, len) (phdr)->_hdrlen_rsvd_flags = htons(((len) << 12) | TCPH_FLAGS(phdr))
+#define TCPH_FLAGS_SET(phdr, flags) (phdr)->_hdrlen_rsvd_flags = (((phdr)->_hdrlen_rsvd_flags & PP_HTONS((u16_t)(~(u16_t)(TCP_FLAGS)))) | htons(flags))
+#define TCPH_HDRLEN_FLAGS_SET(phdr, len, flags) (phdr)->_hdrlen_rsvd_flags = htons(((len) << 12) | (flags))
+
+#define TCPH_SET_FLAG(phdr, flags ) (phdr)->_hdrlen_rsvd_flags = ((phdr)->_hdrlen_rsvd_flags | htons(flags))
+#define TCPH_UNSET_FLAG(phdr, flags) (phdr)->_hdrlen_rsvd_flags = htons(ntohs((phdr)->_hdrlen_rsvd_flags) | (TCPH_FLAGS(phdr) & ~(flags)) )
+
+#define TCP_TCPLEN(seg) ((seg)->len + ((TCPH_FLAGS((seg)->tcphdr) & (TCP_FIN | TCP_SYN)) != 0))
+
+/** Flags used on input processing, not on pcb->flags
+*/
+#define TF_RESET     (u8_t)0x08U   /* Connection was reset. */
+#define TF_CLOSED    (u8_t)0x10U   /* Connection was sucessfully closed. */
+#define TF_GOT_FIN   (u8_t)0x20U   /* Connection was closed by the remote end. */
+
+
+#if LWIP_EVENT_API
+
+#define TCP_EVENT_ACCEPT(pcb,err,ret)    ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
+                LWIP_EVENT_ACCEPT, NULL, 0, err)
+#define TCP_EVENT_SENT(pcb,space,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
+                   LWIP_EVENT_SENT, NULL, space, ERR_OK)
+#define TCP_EVENT_RECV(pcb,p,err,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
+                LWIP_EVENT_RECV, (p), 0, (err))
+#define TCP_EVENT_CLOSED(pcb,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
+                LWIP_EVENT_RECV, NULL, 0, ERR_OK)
+#define TCP_EVENT_CONNECTED(pcb,err,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
+                LWIP_EVENT_CONNECTED, NULL, 0, (err))
+#define TCP_EVENT_POLL(pcb,ret)       ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
+                LWIP_EVENT_POLL, NULL, 0, ERR_OK)
+#define TCP_EVENT_ERR(errf,arg,err)  lwip_tcp_event((arg), NULL, \
+                LWIP_EVENT_ERR, NULL, 0, (err))
+
+#else /* LWIP_EVENT_API */
+
+#define TCP_EVENT_ACCEPT(pcb,err,ret)                          \
+  do {                                                         \
+    if((pcb)->accept != NULL)                                  \
+      (ret) = (pcb)->accept((pcb)->callback_arg,(pcb),(err));  \
+    else (ret) = ERR_ARG;                                      \
+  } while (0)
+
+#define TCP_EVENT_SENT(pcb,space,ret)                          \
+  do {                                                         \
+    if((pcb)->sent != NULL)                                    \
+      (ret) = (pcb)->sent((pcb)->callback_arg,(pcb),(space));  \
+    else (ret) = ERR_OK;                                       \
+  } while (0)
+
+#define TCP_EVENT_RECV(pcb,p,err,ret)                          \
+  do {                                                         \
+    if((pcb)->recv != NULL) {                                  \
+      (ret) = (pcb)->recv((pcb)->callback_arg,(pcb),(p),(err));\
+    } else {                                                   \
+      (ret) = tcp_recv_null(NULL, (pcb), (p), (err));          \
+    }                                                          \
+  } while (0)
+
+#define TCP_EVENT_CLOSED(pcb,ret)                                \
+  do {                                                           \
+    if(((pcb)->recv != NULL)) {                                  \
+      (ret) = (pcb)->recv((pcb)->callback_arg,(pcb),NULL,ERR_OK);\
+    } else {                                                     \
+      (ret) = ERR_OK;                                            \
+    }                                                            \
+  } while (0)
+
+#define TCP_EVENT_CONNECTED(pcb,err,ret)                         \
+  do {                                                           \
+    if((pcb)->connected != NULL)                                 \
+      (ret) = (pcb)->connected((pcb)->callback_arg,(pcb),(err)); \
+    else (ret) = ERR_OK;                                         \
+  } while (0)
+
+#define TCP_EVENT_POLL(pcb,ret)                                \
+  do {                                                         \
+    if((pcb)->poll != NULL)                                    \
+      (ret) = (pcb)->poll((pcb)->callback_arg,(pcb));          \
+    else (ret) = ERR_OK;                                       \
+  } while (0)
+
+#define TCP_EVENT_ERR(errf,arg,err)                            \
+  do {                                                         \
+    if((errf) != NULL)                                         \
+      (errf)((arg),(err));                                     \
+  } while (0)
+
+#endif /* LWIP_EVENT_API */
+
+/** Enabled extra-check for TCP_OVERSIZE if LWIP_DEBUG is enabled */
+#if TCP_OVERSIZE && defined(LWIP_DEBUG)
+#define TCP_OVERSIZE_DBGCHECK 1
+#else
+#define TCP_OVERSIZE_DBGCHECK 0
+#endif
+
+/** Don't generate checksum on copy if CHECKSUM_GEN_TCP is disabled */
+#define TCP_CHECKSUM_ON_COPY  (LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_TCP)
+
+/* This structure represents a TCP segment on the unsent, unacked and ooseq queues */
+struct tcp_seg {
+  struct tcp_seg *next;    /* used when putting segements on a queue */
+  struct pbuf *p;          /* buffer containing data + TCP header */
+  void *dataptr;           /* pointer to the TCP data in the pbuf */
+  u16_t len;               /* the TCP length of this segment */
+#if TCP_OVERSIZE_DBGCHECK
+  u16_t oversize_left;     /* Extra bytes available at the end of the last
+                              pbuf in unsent (used for asserting vs.
+                              tcp_pcb.unsent_oversized only) */
+#endif /* TCP_OVERSIZE_DBGCHECK */ 
+#if TCP_CHECKSUM_ON_COPY
+  u16_t chksum;
+  u8_t  chksum_swapped;
+#endif /* TCP_CHECKSUM_ON_COPY */
+  u8_t  flags;
+#define TF_SEG_OPTS_MSS         (u8_t)0x01U /* Include MSS option. */
+#define TF_SEG_OPTS_TS          (u8_t)0x02U /* Include timestamp option. */
+#define TF_SEG_DATA_CHECKSUMMED (u8_t)0x04U /* ALL data (not the header) is
+                                               checksummed into 'chksum' */
+  struct tcp_hdr *tcphdr;  /* the TCP header */
+};
+
+#define LWIP_TCP_OPT_LENGTH(flags)              \
+  (flags & TF_SEG_OPTS_MSS ? 4  : 0) +          \
+  (flags & TF_SEG_OPTS_TS  ? 12 : 0)
+
+/** This returns a TCP header option for MSS in an u32_t */
+#define TCP_BUILD_MSS_OPTION(x) (x) = PP_HTONL(((u32_t)2 << 24) |          \
+                                               ((u32_t)4 << 16) |          \
+                                               (((u32_t)TCP_MSS / 256) << 8) | \
+                                               (TCP_MSS & 255))
+
+/* Global variables: */
+extern struct tcp_pcb *tcp_input_pcb;
+extern u32_t tcp_ticks;
+
+/* The TCP PCB lists. */
+union tcp_listen_pcbs_t { /* List of all TCP PCBs in LISTEN state. */
+  struct tcp_pcb_listen *listen_pcbs; 
+  struct tcp_pcb *pcbs;
+};
+extern struct tcp_pcb *tcp_bound_pcbs;
+extern union tcp_listen_pcbs_t tcp_listen_pcbs;
+extern struct tcp_pcb *tcp_active_pcbs;  /* List of all TCP PCBs that are in a
+              state in which they accept or send
+              data. */
+extern struct tcp_pcb *tcp_tw_pcbs;      /* List of all TCP PCBs in TIME-WAIT. */
+
+extern struct tcp_pcb *tcp_tmp_pcb;      /* Only used for temporary storage. */
+
+/* Axioms about the above lists:   
+   1) Every TCP PCB that is not CLOSED is in one of the lists.
+   2) A PCB is only in one of the lists.
+   3) All PCBs in the tcp_listen_pcbs list is in LISTEN state.
+   4) All PCBs in the tcp_tw_pcbs list is in TIME-WAIT state.
+*/
+/* Define two macros, TCP_REG and TCP_RMV that registers a TCP PCB
+   with a PCB list or removes a PCB from a list, respectively. */
+#ifndef TCP_DEBUG_PCB_LISTS
+#define TCP_DEBUG_PCB_LISTS 0
+#endif
+#if TCP_DEBUG_PCB_LISTS
+#define TCP_REG(pcbs, npcb) do {\
+                            LWIP_DEBUGF(TCP_DEBUG, ("TCP_REG %p local port %d\n", (npcb), (npcb)->local_port)); \
+                            for(tcp_tmp_pcb = *(pcbs); \
+          tcp_tmp_pcb != NULL; \
+        tcp_tmp_pcb = tcp_tmp_pcb->next) { \
+                                LWIP_ASSERT("TCP_REG: already registered\n", tcp_tmp_pcb != (npcb)); \
+                            } \
+                            LWIP_ASSERT("TCP_REG: pcb->state != CLOSED", ((pcbs) == &tcp_bound_pcbs) || ((npcb)->state != CLOSED)); \
+                            (npcb)->next = *(pcbs); \
+                            LWIP_ASSERT("TCP_REG: npcb->next != npcb", (npcb)->next != (npcb)); \
+                            *(pcbs) = (npcb); \
+                            LWIP_ASSERT("TCP_RMV: tcp_pcbs sane", tcp_pcbs_sane()); \
+              tcp_timer_needed(); \
+                            } while(0)
+#define TCP_RMV(pcbs, npcb) do { \
+                            LWIP_ASSERT("TCP_RMV: pcbs != NULL", *(pcbs) != NULL); \
+                            LWIP_DEBUGF(TCP_DEBUG, ("TCP_RMV: removing %p from %p\n", (npcb), *(pcbs))); \
+                            if(*(pcbs) == (npcb)) { \
+                               *(pcbs) = (*pcbs)->next; \
+                            } else for(tcp_tmp_pcb = *(pcbs); tcp_tmp_pcb != NULL; tcp_tmp_pcb = tcp_tmp_pcb->next) { \
+                               if(tcp_tmp_pcb->next == (npcb)) { \
+                                  tcp_tmp_pcb->next = (npcb)->next; \
+                                  break; \
+                               } \
+                            } \
+                            (npcb)->next = NULL; \
+                            LWIP_ASSERT("TCP_RMV: tcp_pcbs sane", tcp_pcbs_sane()); \
+                            LWIP_DEBUGF(TCP_DEBUG, ("TCP_RMV: removed %p from %p\n", (npcb), *(pcbs))); \
+                            } while(0)
+
+#else /* LWIP_DEBUG */
+
+#define TCP_REG(pcbs, npcb)                        \
+  do {                                             \
+    (npcb)->next = *pcbs;                          \
+    *(pcbs) = (npcb);                              \
+    tcp_timer_needed();                            \
+  } while (0)
+
+#define TCP_RMV(pcbs, npcb)                        \
+  do {                                             \
+    if(*(pcbs) == (npcb)) {                        \
+      (*(pcbs)) = (*pcbs)->next;                   \
+    }                                              \
+    else {                                         \
+      for(tcp_tmp_pcb = *pcbs;                     \
+          tcp_tmp_pcb != NULL;                     \
+          tcp_tmp_pcb = tcp_tmp_pcb->next) {       \
+        if(tcp_tmp_pcb->next == (npcb)) {          \
+          tcp_tmp_pcb->next = (npcb)->next;        \
+          break;                                   \
+        }                                          \
+      }                                            \
+    }                                              \
+    (npcb)->next = NULL;                           \
+  } while(0)
+
+#endif /* LWIP_DEBUG */
+
+
+/* Internal functions: */
+struct tcp_pcb *tcp_pcb_copy(struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
+void tcp_pcb_purge(struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
+void tcp_pcb_remove(struct tcp_pcb **pcblist, struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
+
+void tcp_segs_free(struct tcp_seg *seg)ICACHE_FLASH_ATTR;
+void tcp_seg_free(struct tcp_seg *seg)ICACHE_FLASH_ATTR;
+struct tcp_seg *tcp_seg_copy(struct tcp_seg *seg)ICACHE_FLASH_ATTR;
+
+#define tcp_ack(pcb)                               \
+  do {                                             \
+    if((pcb)->flags & TF_ACK_DELAY) {              \
+      (pcb)->flags &= ~TF_ACK_DELAY;               \
+      (pcb)->flags |= TF_ACK_NOW;                  \
+    }                                              \
+    else {                                         \
+      (pcb)->flags |= TF_ACK_DELAY;                \
+    }                                              \
+  } while (0)
+
+#define tcp_ack_now(pcb)                           \
+  do {                                             \
+    (pcb)->flags |= TF_ACK_NOW;                    \
+  } while (0)
+
+err_t tcp_send_fin(struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
+err_t tcp_enqueue_flags(struct tcp_pcb *pcb, u8_t flags)ICACHE_FLASH_ATTR;
+
+void tcp_rexmit_seg(struct tcp_pcb *pcb, struct tcp_seg *seg)ICACHE_FLASH_ATTR;
+
+void tcp_rst(u32_t seqno, u32_t ackno,
+       ip_addr_t *local_ip, ip_addr_t *remote_ip,
+       u16_t local_port, u16_t remote_port)ICACHE_FLASH_ATTR;
+
+u32_t tcp_next_iss(void)ICACHE_FLASH_ATTR;
+
+void tcp_keepalive(struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
+void tcp_zero_window_probe(struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
+
+#if TCP_CALCULATE_EFF_SEND_MSS
+u16_t tcp_eff_send_mss(u16_t sendmss, ip_addr_t *addr)ICACHE_FLASH_ATTR;
+#endif /* TCP_CALCULATE_EFF_SEND_MSS */
+
+#if LWIP_CALLBACK_API
+err_t tcp_recv_null(void *arg, struct tcp_pcb *pcb, struct pbuf *p, err_t err)ICACHE_FLASH_ATTR;
+#endif /* LWIP_CALLBACK_API */
+
+#if TCP_DEBUG || TCP_INPUT_DEBUG || TCP_OUTPUT_DEBUG
+void tcp_debug_print(struct tcp_hdr *tcphdr)ICACHE_FLASH_ATTR;
+void tcp_debug_print_flags(u8_t flags)ICACHE_FLASH_ATTR;
+void tcp_debug_print_state(enum tcp_state s)ICACHE_FLASH_ATTR;
+void tcp_debug_print_pcbs(void)ICACHE_FLASH_ATTR;
+s16_t tcp_pcbs_sane(void)ICACHE_FLASH_ATTR;
+#else
+#  define tcp_debug_print(tcphdr)
+#  define tcp_debug_print_flags(flags)
+#  define tcp_debug_print_state(s)
+#  define tcp_debug_print_pcbs()
+#  define tcp_pcbs_sane() 1
+#endif /* TCP_DEBUG */
+
+/** External function (implemented in timers.c), called when TCP detects
+ * that a timer is needed (i.e. active- or time-wait-pcb found). */
+void tcp_timer_needed(void)ICACHE_FLASH_ATTR;
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_TCP */
+
+#endif /* __LWIP_TCP_H__ */

app/include/lwip/tcpip.h

@@ -0,0 +1,159 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_TCPIP_H__
+#define __LWIP_TCPIP_H__
+
+#include "lwip/opt.h"
+
+#if !NO_SYS /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/api_msg.h"
+#include "lwip/netifapi.h"
+#include "lwip/pbuf.h"
+#include "lwip/api.h"
+#include "lwip/sys.h"
+#include "lwip/timers.h"
+#include "lwip/netif.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Define this to something that triggers a watchdog. This is called from
+ * tcpip_thread after processing a message. */
+#ifndef LWIP_TCPIP_THREAD_ALIVE
+#define LWIP_TCPIP_THREAD_ALIVE()
+#endif
+
+#if LWIP_TCPIP_CORE_LOCKING
+/** The global semaphore to lock the stack. */
+extern sys_mutex_t lock_tcpip_core;
+#define LOCK_TCPIP_CORE()     sys_mutex_lock(&lock_tcpip_core)
+#define UNLOCK_TCPIP_CORE()   sys_mutex_unlock(&lock_tcpip_core)
+#define TCPIP_APIMSG(m)       tcpip_apimsg_lock(m)
+#define TCPIP_APIMSG_ACK(m)
+#define TCPIP_NETIFAPI(m)     tcpip_netifapi_lock(m)
+#define TCPIP_NETIFAPI_ACK(m)
+#else /* LWIP_TCPIP_CORE_LOCKING */
+#define LOCK_TCPIP_CORE()
+#define UNLOCK_TCPIP_CORE()
+#define TCPIP_APIMSG(m)       tcpip_apimsg(m)
+#define TCPIP_APIMSG_ACK(m)   sys_sem_signal(&m->conn->op_completed)
+#define TCPIP_NETIFAPI(m)     tcpip_netifapi(m)
+#define TCPIP_NETIFAPI_ACK(m) sys_sem_signal(&m->sem)
+#endif /* LWIP_TCPIP_CORE_LOCKING */
+
+/** Function prototype for the init_done function passed to tcpip_init */
+typedef void (*tcpip_init_done_fn)(void *arg);
+/** Function prototype for functions passed to tcpip_callback() */
+typedef void (*tcpip_callback_fn)(void *ctx);
+
+void tcpip_init(tcpip_init_done_fn tcpip_init_done, void *arg);
+
+#if LWIP_NETCONN
+err_t tcpip_apimsg(struct api_msg *apimsg);
+#if LWIP_TCPIP_CORE_LOCKING
+err_t tcpip_apimsg_lock(struct api_msg *apimsg);
+#endif /* LWIP_TCPIP_CORE_LOCKING */
+#endif /* LWIP_NETCONN */
+
+err_t tcpip_input(struct pbuf *p, struct netif *inp);
+
+#if LWIP_NETIF_API
+err_t tcpip_netifapi(struct netifapi_msg *netifapimsg);
+#if LWIP_TCPIP_CORE_LOCKING
+err_t tcpip_netifapi_lock(struct netifapi_msg *netifapimsg);
+#endif /* LWIP_TCPIP_CORE_LOCKING */
+#endif /* LWIP_NETIF_API */
+
+err_t tcpip_callback_with_block(tcpip_callback_fn function, void *ctx, u8_t block);
+#define tcpip_callback(f, ctx)              tcpip_callback_with_block(f, ctx, 1)
+
+/* free pbufs or heap memory from another context without blocking */
+err_t pbuf_free_callback(struct pbuf *p);
+err_t mem_free_callback(void *m);
+
+#if LWIP_TCPIP_TIMEOUT
+err_t tcpip_timeout(u32_t msecs, sys_timeout_handler h, void *arg);
+err_t tcpip_untimeout(sys_timeout_handler h, void *arg);
+#endif /* LWIP_TCPIP_TIMEOUT */
+
+enum tcpip_msg_type {
+#if LWIP_NETCONN
+  TCPIP_MSG_API,
+#endif /* LWIP_NETCONN */
+  TCPIP_MSG_INPKT,
+#if LWIP_NETIF_API
+  TCPIP_MSG_NETIFAPI,
+#endif /* LWIP_NETIF_API */
+#if LWIP_TCPIP_TIMEOUT
+  TCPIP_MSG_TIMEOUT,
+  TCPIP_MSG_UNTIMEOUT,
+#endif /* LWIP_TCPIP_TIMEOUT */
+  TCPIP_MSG_CALLBACK
+};
+
+struct tcpip_msg {
+  enum tcpip_msg_type type;
+  sys_sem_t *sem;
+  union {
+#if LWIP_NETCONN
+    struct api_msg *apimsg;
+#endif /* LWIP_NETCONN */
+#if LWIP_NETIF_API
+    struct netifapi_msg *netifapimsg;
+#endif /* LWIP_NETIF_API */
+    struct {
+      struct pbuf *p;
+      struct netif *netif;
+    } inp;
+    struct {
+      tcpip_callback_fn function;
+      void *ctx;
+    } cb;
+#if LWIP_TCPIP_TIMEOUT
+    struct {
+      u32_t msecs;
+      sys_timeout_handler h;
+      void *arg;
+    } tmo;
+#endif /* LWIP_TCPIP_TIMEOUT */
+  } msg;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !NO_SYS */
+
+#endif /* __LWIP_TCPIP_H__ */

app/include/lwip/timers.h

@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *         Simon Goldschmidt
+ *
+ */
+#ifndef __LWIP_TIMERS_H__
+#define __LWIP_TIMERS_H__
+
+#include "lwip/opt.h"
+
+/* Timers are not supported when NO_SYS==1 and NO_SYS_NO_TIMERS==1 */
+#define LWIP_TIMERS (!NO_SYS || (NO_SYS && !NO_SYS_NO_TIMERS))
+
+#if LWIP_TIMERS
+
+#include "lwip/err.h"
+#include "lwip/sys.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef LWIP_DEBUG_TIMERNAMES
+#ifdef LWIP_DEBUG
+#define LWIP_DEBUG_TIMERNAMES SYS_DEBUG
+#else /* LWIP_DEBUG */
+#define LWIP_DEBUG_TIMERNAMES 0
+#endif /* LWIP_DEBUG*/
+#endif
+
+/** Function prototype for a timeout callback function. Register such a function
+ * using sys_timeout().
+ *
+ * @param arg Additional argument to pass to the function - set up by sys_timeout()
+ */
+typedef void (* sys_timeout_handler)(void *arg);
+
+struct sys_timeo {
+  struct sys_timeo *next;
+  u32_t time;
+  sys_timeout_handler h;
+  void *arg;
+#if LWIP_DEBUG_TIMERNAMES
+  const char* handler_name;
+#endif /* LWIP_DEBUG_TIMERNAMES */
+};
+
+void sys_timeouts_init(void)ICACHE_FLASH_ATTR;
+
+#if LWIP_DEBUG_TIMERNAMES
+void sys_timeout_debug(u32_t msecs, sys_timeout_handler handler, void *arg, const char* handler_name)ICACHE_FLASH_ATTR;
+#define sys_timeout(msecs, handler, arg) sys_timeout_debug(msecs, handler, arg, #handler)
+#else /* LWIP_DEBUG_TIMERNAMES */
+void sys_timeout(u32_t msecs, sys_timeout_handler handler, void *arg)ICACHE_FLASH_ATTR;
+#endif /* LWIP_DEBUG_TIMERNAMES */
+
+void sys_untimeout(sys_timeout_handler handler, void *arg)ICACHE_FLASH_ATTR;
+#if NO_SYS
+void sys_check_timeouts(void)ICACHE_FLASH_ATTR;
+void sys_restart_timeouts(void)ICACHE_FLASH_ATTR;
+#else /* NO_SYS */
+void sys_timeouts_mbox_fetch(sys_mbox_t *mbox, void **msg);
+#endif /* NO_SYS */
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_TIMERS */
+#endif /* __LWIP_TIMERS_H__ */

app/include/lwip/udp.h

@@ -0,0 +1,171 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_UDP_H__
+#define __LWIP_UDP_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_UDP /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/pbuf.h"
+#include "lwip/netif.h"
+#include "lwip/ip_addr.h"
+#include "lwip/ip.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define UDP_HLEN 8
+
+/* Fields are (of course) in network byte order. */
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct udp_hdr {
+  PACK_STRUCT_FIELD(u16_t src);
+  PACK_STRUCT_FIELD(u16_t dest);  /* src/dest UDP ports */
+  PACK_STRUCT_FIELD(u16_t len);
+  PACK_STRUCT_FIELD(u16_t chksum);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+#define UDP_FLAGS_NOCHKSUM       0x01U
+#define UDP_FLAGS_UDPLITE        0x02U
+#define UDP_FLAGS_CONNECTED      0x04U
+#define UDP_FLAGS_MULTICAST_LOOP 0x08U
+
+struct udp_pcb;
+
+/** Function prototype for udp pcb receive callback functions
+ * addr and port are in same byte order as in the pcb
+ * The callback is responsible for freeing the pbuf
+ * if it's not used any more.
+ *
+ * ATTENTION: Be aware that 'addr' points into the pbuf 'p' so freeing this pbuf
+ *            makes 'addr' invalid, too.
+ *
+ * @param arg user supplied argument (udp_pcb.recv_arg)
+ * @param pcb the udp_pcb which received data
+ * @param p the packet buffer that was received
+ * @param addr the remote IP address from which the packet was received
+ * @param port the remote port from which the packet was received
+ */
+typedef void (*udp_recv_fn)(void *arg, struct udp_pcb *pcb, struct pbuf *p,
+    ip_addr_t *addr, u16_t port);
+
+
+struct udp_pcb {
+/* Common members of all PCB types */
+  IP_PCB;
+
+/* Protocol specific PCB members */
+
+  struct udp_pcb *next;
+
+  u8_t flags;
+  /** ports are in host byte order */
+  u16_t local_port, remote_port;
+
+#if LWIP_IGMP
+  /** outgoing network interface for multicast packets */
+  ip_addr_t multicast_ip;
+#endif /* LWIP_IGMP */
+
+#if LWIP_UDPLITE
+  /** used for UDP_LITE only */
+  u16_t chksum_len_rx, chksum_len_tx;
+#endif /* LWIP_UDPLITE */
+
+  /** receive callback function */
+  udp_recv_fn recv;
+  /** user-supplied argument for the recv callback */
+  void *recv_arg;  
+};
+/* udp_pcbs export for exernal reference (e.g. SNMP agent) */
+extern struct udp_pcb *udp_pcbs;
+
+/* The following functions is the application layer interface to the
+   UDP code. */
+struct udp_pcb * udp_new        (void)ICACHE_FLASH_ATTR;
+void             udp_remove     (struct udp_pcb *pcb)ICACHE_FLASH_ATTR;
+err_t            udp_bind       (struct udp_pcb *pcb, ip_addr_t *ipaddr,
+                                 u16_t port)ICACHE_FLASH_ATTR;
+err_t            udp_connect    (struct udp_pcb *pcb, ip_addr_t *ipaddr,
+                                 u16_t port)ICACHE_FLASH_ATTR;
+void             udp_disconnect (struct udp_pcb *pcb)ICACHE_FLASH_ATTR;
+void             udp_recv       (struct udp_pcb *pcb, udp_recv_fn recv,
+                                 void *recv_arg)ICACHE_FLASH_ATTR;
+err_t            udp_sendto_if  (struct udp_pcb *pcb, struct pbuf *p,
+                                 ip_addr_t *dst_ip, u16_t dst_port,
+                                 struct netif *netif)ICACHE_FLASH_ATTR;
+err_t            udp_sendto     (struct udp_pcb *pcb, struct pbuf *p,
+                                 ip_addr_t *dst_ip, u16_t dst_port)ICACHE_FLASH_ATTR;
+err_t            udp_send       (struct udp_pcb *pcb, struct pbuf *p)ICACHE_FLASH_ATTR;
+
+#if LWIP_CHECKSUM_ON_COPY
+err_t            udp_sendto_if_chksum(struct udp_pcb *pcb, struct pbuf *p,
+                                 ip_addr_t *dst_ip, u16_t dst_port,
+                                 struct netif *netif, u8_t have_chksum,
+                                 u16_t chksum)ICACHE_FLASH_ATTR;
+err_t            udp_sendto_chksum(struct udp_pcb *pcb, struct pbuf *p,
+                                 ip_addr_t *dst_ip, u16_t dst_port,
+                                 u8_t have_chksum, u16_t chksum)ICACHE_FLASH_ATTR;
+err_t            udp_send_chksum(struct udp_pcb *pcb, struct pbuf *p,
+                                 u8_t have_chksum, u16_t chksum)ICACHE_FLASH_ATTR;
+#endif /* LWIP_CHECKSUM_ON_COPY */
+
+#define          udp_flags(pcb) ((pcb)->flags)
+#define          udp_setflags(pcb, f)  ((pcb)->flags = (f))
+
+/* The following functions are the lower layer interface to UDP. */
+void             udp_input      (struct pbuf *p, struct netif *inp)ICACHE_FLASH_ATTR;
+
+#define udp_init() /* Compatibility define, not init needed. */
+
+#if UDP_DEBUG
+void udp_debug_print(struct udp_hdr *udphdr)ICACHE_FLASH_ATTR;
+#else
+#define udp_debug_print(udphdr)
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_UDP */
+
+#endif /* __LWIP_UDP_H__ */

app/include/mem_manager.h

@@ -0,0 +1,81 @@
+#ifndef __MEM_MANAGER_H__
+#define __MEM_MANAGER_H__
+
+#include "c_types.h"
+
+/*------------------------<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>------------------------*/
+
+#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
+#ifndef IOT_SIP_MODE
+//#define configTOTAL_HEAP_SIZE			( ( size_t ) ( 0x3fffc000 - (uint32)&_heap_start ) )//fix 16000 to 24000 on 14.2.26
+#else
+#define configTOTAL_HEAP_SIZE			( ( size_t ) ( 8000 ) )
+#endif
+#define portBYTE_ALIGNMENT			8
+#define pdFALSE 0
+#define pdTRUE  1
+
+#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
+#if portBYTE_ALIGNMENT == 8
+	#define portBYTE_ALIGNMENT_MASK ( 0x0007 )
+#endif
+
+#if portBYTE_ALIGNMENT == 4
+	#define portBYTE_ALIGNMENT_MASK	( 0x0003 )
+#endif
+
+#if portBYTE_ALIGNMENT == 2
+	#define portBYTE_ALIGNMENT_MASK	( 0x0001 )
+#endif
+
+#if portBYTE_ALIGNMENT == 1
+	#define portBYTE_ALIGNMENT_MASK	( 0x0000 )
+#endif
+
+#ifndef portBYTE_ALIGNMENT_MASK
+	#error "Invalid portBYTE_ALIGNMENT definition"
+#endif
+
+#define configUSE_MALLOC_FAILED_HOOK	1
+#define portPOINTER_SIZE_TYPE unsigned int
+
+#define heapMINIMUM_BLOCK_SIZE	( ( size_t ) ( heapSTRUCT_SIZE * 2 ) )
+
+//#define configADJUSTED_HEAP_SIZE	( configTOTAL_HEAP_SIZE - portBYTE_ALIGNMENT )
+
+//static unsigned char ucHeap[ configTOTAL_HEAP_SIZE ];
+static unsigned char *ucHeap;
+
+typedef struct A_BLOCK_LINK
+{
+	struct A_BLOCK_LINK *pxNextFreeBlock;	//The next free block in the list. 
+	size_t xBlockSize;						//The size of the free block. 
+} xBlockLink;
+
+static const unsigned short heapSTRUCT_SIZE	= ( sizeof( xBlockLink ) + portBYTE_ALIGNMENT - ( sizeof( xBlockLink ) % portBYTE_ALIGNMENT ) );
+
+//static const size_t xTotalHeapSize = ( ( size_t ) configADJUSTED_HEAP_SIZE ) & ( ( size_t ) ~portBYTE_ALIGNMENT_MASK );
+
+static xBlockLink xStart, *pxEnd = NULL;
+
+//static size_t xFreeBytesRemaining = ( ( size_t ) configADJUSTED_HEAP_SIZE ) & ( ( size_t ) ~portBYTE_ALIGNMENT_MASK );
+
+
+/*------------------------<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-----------------------------------*/
+
+static void prvInsertBlockIntoFreeList( xBlockLink *pxBlockToInsert ) ;//ICACHE_FLASH_ATTR;
+
+static void prvHeapInit( void ) ;//ICACHE_FLASH_ATTR;
+
+void vApplicationMallocFailedHook( void ) ;//ICACHE_FLASH_ATTR;
+
+void *pvPortMalloc( size_t xWantedSize ) ;//ICACHE_FLASH_ATTR;
+
+void vPortFree( void *pv ) ;//ICACHE_FLASH_ATTR;
+
+size_t xPortGetFreeHeapSize( void ) ;//ICACHE_FLASH_ATTR;
+
+void vPortInitialiseBlocks( void ) ;//ICACHE_FLASH_ATTR;
+/*-----------------------------------------------------------*/
+
+#endif

app/include/netif/etharp.h

@@ -0,0 +1,254 @@
+/*
+ * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
+ * Copyright (c) 2003-2004 Leon Woestenberg <leon.woestenberg@axon.tv>
+ * Copyright (c) 2003-2004 Axon Digital Design B.V., The Netherlands.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+
+#ifndef __NETIF_ETHARP_H__
+#define __NETIF_ETHARP_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_ARP || LWIP_ETHERNET /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/pbuf.h"
+#include "lwip/ip_addr.h"
+#include "lwip/netif.h"
+#include "lwip/ip.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef ETHARP_HWADDR_LEN
+#define ETHARP_HWADDR_LEN     6
+#endif
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct eth_addr {
+  PACK_STRUCT_FIELD(u8_t addr[ETHARP_HWADDR_LEN]);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+/** Ethernet header */
+struct eth_hdr {
+#if ETH_PAD_SIZE
+  PACK_STRUCT_FIELD(u8_t padding[ETH_PAD_SIZE]);
+#endif
+  PACK_STRUCT_FIELD(struct eth_addr dest);
+  PACK_STRUCT_FIELD(struct eth_addr src);
+  PACK_STRUCT_FIELD(u16_t type);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+#define SIZEOF_ETH_HDR (14 + ETH_PAD_SIZE)
+
+#if ETHARP_SUPPORT_VLAN
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+/** VLAN header inserted between ethernet header and payload
+ * if 'type' in ethernet header is ETHTYPE_VLAN.
+ * See IEEE802.Q */
+struct eth_vlan_hdr {
+  PACK_STRUCT_FIELD(u16_t tpid);
+  PACK_STRUCT_FIELD(u16_t prio_vid);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+#define SIZEOF_VLAN_HDR 4
+#define VLAN_ID(vlan_hdr) (htons((vlan_hdr)->prio_vid) & 0xFFF)
+
+#endif /* ETHARP_SUPPORT_VLAN */
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+/** the ARP message, see RFC 826 ("Packet format") */
+struct etharp_hdr {
+  PACK_STRUCT_FIELD(u16_t hwtype);
+  PACK_STRUCT_FIELD(u16_t proto);
+  PACK_STRUCT_FIELD(u8_t  hwlen);
+  PACK_STRUCT_FIELD(u8_t  protolen);
+  PACK_STRUCT_FIELD(u16_t opcode);
+  PACK_STRUCT_FIELD(struct eth_addr shwaddr);
+  PACK_STRUCT_FIELD(struct ip_addr2 sipaddr);
+  PACK_STRUCT_FIELD(struct eth_addr dhwaddr);
+  PACK_STRUCT_FIELD(struct ip_addr2 dipaddr);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+#define SIZEOF_ETHARP_HDR 28
+#define SIZEOF_ETHARP_MINSIZE 46
+#define SIZEOF_ETHARP_PACKET (SIZEOF_ETH_HDR + SIZEOF_ETHARP_HDR)
+#define SIZEOF_ETHARP_WITHPAD (SIZEOF_ETH_HDR + SIZEOF_ETHARP_MINSIZE)
+
+/** 5 seconds period */
+#define ARP_TMR_INTERVAL 5000
+
+#define ETHTYPE_ARP       0x0806
+#define ETHTYPE_IP        0x0800
+#define ETHTYPE_VLAN      0x8100
+#define ETHTYPE_PPPOEDISC 0x8863  /* PPP Over Ethernet Discovery Stage */
+#define ETHTYPE_PPPOE     0x8864  /* PPP Over Ethernet Session Stage */
+#define ETHTYPE_PAE       0x888e
+
+/** MEMCPY-like macro to copy to/from struct eth_addr's that are local variables
+ * or known to be 32-bit aligned within the protocol header. */
+#ifndef ETHADDR32_COPY
+#define ETHADDR32_COPY(src, dst)  SMEMCPY(src, dst, ETHARP_HWADDR_LEN)
+#endif
+
+/** MEMCPY-like macro to copy to/from struct eth_addr's that are no local
+ * variables and known to be 16-bit aligned within the protocol header. */
+#ifndef ETHADDR16_COPY
+#define ETHADDR16_COPY(src, dst)  SMEMCPY(src, dst, ETHARP_HWADDR_LEN)
+#endif
+
+#if LWIP_ARP /* don't build if not configured for use in lwipopts.h */
+
+/** ARP message types (opcodes) */
+#define ARP_REQUEST 1
+#define ARP_REPLY   2
+
+/** Define this to 1 and define LWIP_ARP_FILTER_NETIF_FN(pbuf, netif, type)
+ * to a filter function that returns the correct netif when using multiple
+ * netifs on one hardware interface where the netif's low-level receive
+ * routine cannot decide for the correct netif (e.g. when mapping multiple
+ * IP addresses to one hardware interface).
+ */
+#ifndef LWIP_ARP_FILTER_NETIF
+#define LWIP_ARP_FILTER_NETIF 0
+#endif
+
+#if ARP_QUEUEING
+/** struct for queueing outgoing packets for unknown address
+  * defined here to be accessed by memp.h
+  */
+struct etharp_q_entry {
+  struct etharp_q_entry *next;
+  struct pbuf *p;
+};
+#endif /* ARP_QUEUEING */
+
+#define etharp_init() /* Compatibility define, not init needed. */
+void etharp_tmr(void)ICACHE_FLASH_ATTR;
+s8_t etharp_find_addr(struct netif *netif, ip_addr_t *ipaddr,
+         struct eth_addr **eth_ret, ip_addr_t **ip_ret)ICACHE_FLASH_ATTR;
+err_t etharp_output(struct netif *netif, struct pbuf *q, ip_addr_t *ipaddr)ICACHE_FLASH_ATTR;
+err_t etharp_query(struct netif *netif, ip_addr_t *ipaddr, struct pbuf *q)ICACHE_FLASH_ATTR;
+err_t etharp_request(struct netif *netif, ip_addr_t *ipaddr)ICACHE_FLASH_ATTR;
+/** For Ethernet network interfaces, we might want to send "gratuitous ARP";
+ *  this is an ARP packet sent by a node in order to spontaneously cause other
+ *  nodes to update an entry in their ARP cache.
+ *  From RFC 3220 "IP Mobility Support for IPv4" section 4.6. */
+#define etharp_gratuitous(netif) etharp_request((netif), &(netif)->ip_addr)
+void etharp_cleanup_netif(struct netif *netif);
+
+#if ETHARP_SUPPORT_STATIC_ENTRIES
+err_t etharp_add_static_entry(ip_addr_t *ipaddr, struct eth_addr *ethaddr)ICACHE_FLASH_ATTR;
+err_t etharp_remove_static_entry(ip_addr_t *ipaddr)ICACHE_FLASH_ATTR;
+#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */
+
+#if LWIP_AUTOIP
+err_t etharp_raw(struct netif *netif, const struct eth_addr *ethsrc_addr,
+                 const struct eth_addr *ethdst_addr,
+                 const struct eth_addr *hwsrc_addr, const ip_addr_t *ipsrc_addr,
+                 const struct eth_addr *hwdst_addr, const ip_addr_t *ipdst_addr,
+                 const u16_t opcode)ICACHE_FLASH_ATTR;
+#endif /* LWIP_AUTOIP */
+
+#endif /* LWIP_ARP */
+
+err_t ethernet_input(struct pbuf *p, struct netif *netif)ICACHE_FLASH_ATTR;
+
+#define eth_addr_cmp(addr1, addr2) (memcmp((addr1)->addr, (addr2)->addr, ETHARP_HWADDR_LEN) == 0)
+
+extern const struct eth_addr ethbroadcast, ethzero;
+
+#endif /* LWIP_ARP || LWIP_ETHERNET */
+
+#if 0
+/** Ethernet header */
+#ifndef ETHARP_HWADDR_LEN
+#define ETHARP_HWADDR_LEN     6
+#endif
+
+
+struct eth_addr {
+  PACK_STRUCT_FIELD(u8_t addr[ETHARP_HWADDR_LEN]);
+} PACK_STRUCT_STRUCT;
+
+
+struct eth_hdr {
+#if ETH_PAD_SIZE
+  PACK_STRUCT_FIELD(u8_t padding[ETH_PAD_SIZE]);
+#endif
+  PACK_STRUCT_FIELD(struct eth_addr dest);
+  PACK_STRUCT_FIELD(struct eth_addr src);
+  PACK_STRUCT_FIELD(u16_t type);
+} PACK_STRUCT_STRUCT;
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+#define SIZEOF_ETH_HDR (14 + ETH_PAD_SIZE)
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __NETIF_ARP_H__ */

app/include/netif/if_llc.h

@@ -0,0 +1,173 @@
+/*	$NetBSD: if_llc.h,v 1.12 1999/11/19 20:41:19 thorpej Exp $	*/
+
+/*-
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)if_llc.h	8.1 (Berkeley) 6/10/93
+ * $FreeBSD$
+ */
+
+#ifndef _NET_IF_LLC_H_
+#define _NET_IF_LLC_H_
+
+/*
+ * IEEE 802.2 Link Level Control headers, for use in conjunction with
+ * 802.{3,4,5} media access control methods.
+ *
+ * Headers here do not use bit fields due to shortcommings in many
+ * compilers.
+ */
+
+struct llc {
+	uint8_t llc_dsap;
+	uint8_t llc_ssap;
+	union {
+	    struct {
+		uint8_t control;
+		uint8_t format_id;
+		uint8_t class;
+		uint8_t window_x2;
+	    } __packed type_u;
+	    struct {
+		uint8_t num_snd_x2;
+		uint8_t num_rcv_x2;
+	    } __packed type_i;
+	    struct {
+		uint8_t control;
+		uint8_t num_rcv_x2;
+	    } __packed type_s;
+	    struct {
+	        uint8_t control;
+		/*
+		 * We cannot put the following fields in a structure because
+		 * the structure rounding might cause padding.
+		 */
+		uint8_t frmr_rej_pdu0;
+		uint8_t frmr_rej_pdu1;
+		uint8_t frmr_control;
+		uint8_t frmr_control_ext;
+		uint8_t frmr_cause;
+	    } __packed type_frmr;
+	    struct {
+		uint8_t  control;
+		uint8_t  org_code[3];
+		uint16_t ether_type;
+	    } __packed type_snap;
+	    struct {
+		uint8_t control;
+		uint8_t control_ext;
+	    } __packed type_raw;
+	} __packed llc_un;
+} __packed;
+
+struct frmrinfo {
+	uint8_t frmr_rej_pdu0;
+	uint8_t frmr_rej_pdu1;
+	uint8_t frmr_control;
+	uint8_t frmr_control_ext;
+	uint8_t frmr_cause;
+} __packed;
+
+#define	llc_control		llc_un.type_u.control
+#define	llc_control_ext		llc_un.type_raw.control_ext
+#define	llc_fid			llc_un.type_u.format_id
+#define	llc_class		llc_un.type_u.class
+#define	llc_window		llc_un.type_u.window_x2
+#define	llc_frmrinfo 		llc_un.type_frmr.frmr_rej_pdu0
+#define	llc_frmr_pdu0		llc_un.type_frmr.frmr_rej_pdu0
+#define	llc_frmr_pdu1		llc_un.type_frmr.frmr_rej_pdu1
+#define	llc_frmr_control	llc_un.type_frmr.frmr_control
+#define	llc_frmr_control_ext	llc_un.type_frmr.frmr_control_ext
+#define	llc_frmr_cause		llc_un.type_frmr.frmr_cause
+#define	llc_snap		llc_un.type_snap
+
+/*
+ * Don't use sizeof(struct llc_un) for LLC header sizes
+ */
+#define LLC_ISFRAMELEN 4
+#define LLC_UFRAMELEN  3
+#define LLC_FRMRLEN    7
+#define LLC_SNAPFRAMELEN 8
+
+#ifdef CTASSERT
+CTASSERT(sizeof (struct llc) == LLC_SNAPFRAMELEN);
+#endif
+
+/*
+ * Unnumbered LLC format commands
+ */
+#define LLC_UI		0x3
+#define LLC_UI_P	0x13
+#define LLC_DISC	0x43
+#define	LLC_DISC_P	0x53
+#define LLC_UA		0x63
+#define LLC_UA_P	0x73
+#define LLC_TEST	0xe3
+#define LLC_TEST_P	0xf3
+#define LLC_FRMR	0x87
+#define	LLC_FRMR_P	0x97
+#define LLC_DM		0x0f
+#define	LLC_DM_P	0x1f
+#define LLC_XID		0xaf
+#define LLC_XID_P	0xbf
+#define LLC_SABME	0x6f
+#define LLC_SABME_P	0x7f
+
+/*
+ * Supervisory LLC commands
+ */
+#define	LLC_RR		0x01
+#define	LLC_RNR		0x05
+#define	LLC_REJ		0x09
+
+/*
+ * Info format - dummy only
+ */
+#define	LLC_INFO	0x00
+
+/*
+ * ISO PDTR 10178 contains among others
+ */
+#define LLC_8021D_LSAP	0x42
+#define LLC_X25_LSAP	0x7e
+#define LLC_SNAP_LSAP	0xaa
+#define LLC_ISO_LSAP	0xfe
+
+#define RFC1042_LEN		6
+#define RFC1042         {0xAA, 0xAA, 0x03, 0x00, 0x00, 0x00}
+#define ETHERNET_TUNNEL {0xAA, 0xAA, 0x03, 0x00, 0x00, 0xF8}
+
+/*
+ *   copied from sys/net/ethernet.h
+ */
+#define ETHERTYPE_AARP          0x80F3  /* AppleTalk AARP */
+#define ETHERTYPE_IPX           0x8137  /* Novell (old) NetWare IPX (ECONFIG E option) */
+
+
+
+#endif /* _NET_IF_LLC_H_ */

app/include/netif/ppp_oe.h

@@ -0,0 +1,190 @@
+/*****************************************************************************
+* ppp_oe.h - PPP Over Ethernet implementation for lwIP.
+*
+* Copyright (c) 2006 by Marc Boucher, Services Informatiques (MBSI) inc.
+*
+* The authors hereby grant permission to use, copy, modify, distribute,
+* and license this software and its documentation for any purpose, provided
+* that existing copyright notices are retained in all copies and that this
+* notice and the following disclaimer are included verbatim in any 
+* distributions. No written agreement, license, or royalty fee is required
+* for any of the authorized uses.
+*
+* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
+* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
+* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*
+******************************************************************************
+* REVISION HISTORY
+*
+* 06-01-01 Marc Boucher <marc@mbsi.ca>
+*   Ported to lwIP.
+*****************************************************************************/
+
+
+
+/* based on NetBSD: if_pppoe.c,v 1.64 2006/01/31 23:50:15 martin Exp */
+
+/*-
+ * Copyright (c) 2002 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Martin Husemann <martin@NetBSD.org>.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef PPP_OE_H
+#define PPP_OE_H
+
+#include "lwip/opt.h"
+
+#if PPPOE_SUPPORT > 0
+
+#include "netif/etharp.h"
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct pppoehdr {
+  PACK_STRUCT_FIELD(u8_t vertype);
+  PACK_STRUCT_FIELD(u8_t code);
+  PACK_STRUCT_FIELD(u16_t session);
+  PACK_STRUCT_FIELD(u16_t plen);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct pppoetag {
+  PACK_STRUCT_FIELD(u16_t tag);
+  PACK_STRUCT_FIELD(u16_t len);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+
+#define PPPOE_STATE_INITIAL   0
+#define PPPOE_STATE_PADI_SENT 1
+#define PPPOE_STATE_PADR_SENT 2
+#define PPPOE_STATE_SESSION   3
+#define PPPOE_STATE_CLOSING   4
+/* passive */
+#define PPPOE_STATE_PADO_SENT 1
+
+#define PPPOE_HEADERLEN       sizeof(struct pppoehdr)
+#define PPPOE_VERTYPE         0x11    /* VER=1, TYPE = 1 */
+
+#define PPPOE_TAG_EOL         0x0000  /* end of list */
+#define PPPOE_TAG_SNAME       0x0101  /* service name */
+#define PPPOE_TAG_ACNAME      0x0102  /* access concentrator name */
+#define PPPOE_TAG_HUNIQUE     0x0103  /* host unique */
+#define PPPOE_TAG_ACCOOKIE    0x0104  /* AC cookie */
+#define PPPOE_TAG_VENDOR      0x0105  /* vendor specific */
+#define PPPOE_TAG_RELAYSID    0x0110  /* relay session id */
+#define PPPOE_TAG_SNAME_ERR   0x0201  /* service name error */
+#define PPPOE_TAG_ACSYS_ERR   0x0202  /* AC system error */
+#define PPPOE_TAG_GENERIC_ERR 0x0203  /* gerneric error */
+
+#define PPPOE_CODE_PADI       0x09    /* Active Discovery Initiation */
+#define PPPOE_CODE_PADO       0x07    /* Active Discovery Offer */
+#define PPPOE_CODE_PADR       0x19    /* Active Discovery Request */
+#define PPPOE_CODE_PADS       0x65    /* Active Discovery Session confirmation */
+#define PPPOE_CODE_PADT       0xA7    /* Active Discovery Terminate */
+
+#ifndef ETHERMTU
+#define ETHERMTU 1500
+#endif
+
+/* two byte PPP protocol discriminator, then IP data */
+#define PPPOE_MAXMTU          (ETHERMTU-PPPOE_HEADERLEN-2)
+
+#ifndef PPPOE_MAX_AC_COOKIE_LEN
+#define PPPOE_MAX_AC_COOKIE_LEN   64
+#endif
+
+struct pppoe_softc {
+  struct pppoe_softc *next;
+  struct netif *sc_ethif;      /* ethernet interface we are using */
+  int sc_pd;                   /* ppp unit number */
+  void (*sc_linkStatusCB)(int pd, int up);
+
+  int sc_state;                /* discovery phase or session connected */
+  struct eth_addr sc_dest;     /* hardware address of concentrator */
+  u16_t sc_session;            /* PPPoE session id */
+
+#ifdef PPPOE_TODO
+  char *sc_service_name;       /* if != NULL: requested name of service */
+  char *sc_concentrator_name;  /* if != NULL: requested concentrator id */
+#endif /* PPPOE_TODO */
+  u8_t sc_ac_cookie[PPPOE_MAX_AC_COOKIE_LEN]; /* content of AC cookie we must echo back */
+  size_t sc_ac_cookie_len;     /* length of cookie data */
+#ifdef PPPOE_SERVER
+  u8_t *sc_hunique;            /* content of host unique we must echo back */
+  size_t sc_hunique_len;       /* length of host unique */
+#endif
+  int sc_padi_retried;         /* number of PADI retries already done */
+  int sc_padr_retried;         /* number of PADR retries already done */
+};
+
+
+#define pppoe_init() /* compatibility define, no initialization needed */
+
+err_t pppoe_create(struct netif *ethif, int pd, void (*linkStatusCB)(int pd, int up), struct pppoe_softc **scptr);
+err_t pppoe_destroy(struct netif *ifp);
+
+int pppoe_connect(struct pppoe_softc *sc);
+void pppoe_disconnect(struct pppoe_softc *sc);
+
+void pppoe_disc_input(struct netif *netif, struct pbuf *p);
+void pppoe_data_input(struct netif *netif, struct pbuf *p);
+
+err_t pppoe_xmit(struct pppoe_softc *sc, struct pbuf *pb);
+
+/** used in ppp.c */
+#define PPPOE_HDRLEN (sizeof(struct eth_hdr) + PPPOE_HEADERLEN)
+
+#endif /* PPPOE_SUPPORT */
+
+#endif /* PPP_OE_H */

app/include/netif/wlan_lwip_if.h

@@ -0,0 +1,25 @@
+/*
+ *  Copyright (c) 2010-2011 	Espressif System
+ *   
+*/
+
+#ifndef _WLAN_LWIP_IF_H_
+#define _WLAN_LWIP_IF_H_
+
+#define LWIP_IF0_PRIO   28
+#define LWIP_IF1_PRIO   29
+
+enum {
+	SIG_LWIP_RX = 0, 
+};
+
+struct netif * eagle_lwip_if_alloc(struct ieee80211_conn *conn, const uint8 *macaddr, struct ip_info *info);
+struct netif * eagle_lwip_getif(uint8 index);
+
+#ifndef IOT_SIP_MODE
+sint8 ieee80211_output_pbuf(struct netif *ifp, struct pbuf* pb);
+#else
+sint8 ieee80211_output_pbuf(struct ieee80211_conn *conn, esf_buf *eb);
+#endif
+
+#endif /*  _WLAN_LWIP_IF_H_ */

app/include/pp/esf_buf.h

@@ -0,0 +1,12 @@
+/* 
+ * copyright (c) 2008 - 2012 Espressif System 
+ * 
+ * esf buffer data structure
+ */
+
+#ifndef _ESF_BUF_H_
+#define _ESF_BUF_H_
+
+#define EP_OFFSET       36  /* see comments in pbuf.h */
+
+#endif /* _ESF_BUF_H_ */

app/include/ssl/app/espconn_secure.h

@@ -0,0 +1,46 @@
+#ifndef __ESPCONN_ENCRY_H__
+#define __ESPCONN_ENCRY_H__
+
+#include "espconn/espconn.h"
+
+/******************************************************************************
+ * FunctionName : espconn_encry_connect
+ * Description  : The function given as connection
+ * Parameters   : espconn -- the espconn used to connect with the host
+ * Returns      : none
+*******************************************************************************/
+
+sint8 espconn_secure_connect(struct espconn *espconn);
+
+/******************************************************************************
+ * FunctionName : espconn_encry_disconnect
+ * Description  : The function given as the disconnection
+ * Parameters   : espconn -- the espconn used to disconnect with the host
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_secure_disconnect(struct espconn *espconn);
+
+/******************************************************************************
+ * FunctionName : espconn_encry_sent
+ * Description  : sent data for client or server
+ * Parameters   : espconn -- espconn to set for client or server
+ * 				  psent -- data to send
+ *                length -- length of data to send
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_secure_sent(struct espconn *espconn, uint8 *psent, uint16 length);
+
+/******************************************************************************
+ * FunctionName : espconn_secure_accept
+ * Description  : The function given as the listen
+ * Parameters   : espconn -- the espconn used to listen the connection
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_secure_accept(struct espconn *espconn);
+
+#endif
+
+

app/include/ssl/app/espconn_ssl.h

@@ -0,0 +1,59 @@
+#ifndef ESPCONN_SSL_CLIENT_H
+#define ESPCONN_SSL_CLIENT_H
+
+#include "ssl/ssl_ssl.h"
+#include "ssl/ssl_tls1.h"
+
+#include "lwip/app/espconn.h"
+
+typedef struct _ssl_msg {
+    SSL_CTX *ssl_ctx;
+    SSL *ssl;
+    bool quiet;
+    char *private_key_file;
+    uint8_t session_id[SSL_SESSION_ID_SIZE];
+    u16_t pkt_length;
+} ssl_msg;
+
+/******************************************************************************
+ * FunctionName : sslserver_start
+ * Description  : Initialize the server: set up a listen PCB and bind it to 
+ *                the defined port
+ * Parameters   : espconn -- the espconn used to build client
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_ssl_server(struct espconn *espconn);
+
+/******************************************************************************
+ * FunctionName : espconn_ssl_client
+ * Description  : Initialize the client: set up a connect PCB and bind it to 
+ *                the defined port
+ * Parameters   : espconn -- the espconn used to build client
+ * Returns      : none
+*******************************************************************************/
+
+extern sint8 espconn_ssl_client(struct espconn *espconn);
+
+/******************************************************************************
+ * FunctionName : espconn_ssl_write
+ * Description  : sent data for client or server
+ * Parameters   : void *arg -- client or server to send
+ * 				  uint8* psent -- Data to send
+ *                uint16 length -- Length of data to send
+ * Returns      : none
+*******************************************************************************/
+
+extern void espconn_ssl_sent(void *arg, uint8 *psent, uint16 length);
+
+/******************************************************************************
+ * FunctionName : espconn_ssl_disconnect
+ * Description  : A new incoming connection has been disconnected.
+ * Parameters   : espconn -- the espconn used to disconnect with host
+ * Returns      : none
+*******************************************************************************/
+
+extern void espconn_ssl_disconnect(espconn_msg *pdis);
+
+#endif
+

app/include/ssl/cert.h

@@ -0,0 +1,36 @@
+unsigned char default_certificate[] = {
+  0x30, 0x82, 0x01, 0x82, 0x30, 0x81, 0xec, 0x02, 0x09, 0x00, 0x88, 0xf2,
+  0x5f, 0x46, 0x12, 0x2e, 0x3d, 0x3a, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86,
+  0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x05, 0x05, 0x00, 0x30, 0x1c, 0x31,
+  0x1a, 0x30, 0x18, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13, 0x11, 0x77, 0x77,
+  0x77, 0x2e, 0x65, 0x73, 0x70, 0x72, 0x65, 0x73, 0x73, 0x69, 0x66, 0x2e,
+  0x63, 0x6f, 0x6d, 0x30, 0x1e, 0x17, 0x0d, 0x31, 0x34, 0x30, 0x36, 0x32,
+  0x34, 0x31, 0x30, 0x32, 0x32, 0x33, 0x33, 0x5a, 0x17, 0x0d, 0x32, 0x38,
+  0x30, 0x33, 0x30, 0x32, 0x31, 0x30, 0x32, 0x32, 0x33, 0x33, 0x5a, 0x30,
+  0x34, 0x31, 0x12, 0x30, 0x10, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13, 0x09,
+  0x65, 0x73, 0x70, 0x72, 0x65, 0x73, 0x73, 0x69, 0x66, 0x31, 0x1e, 0x30,
+  0x1c, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x15, 0x65, 0x73, 0x70, 0x72,
+  0x65, 0x73, 0x73, 0x69, 0x66, 0x20, 0x49, 0x6f, 0x54, 0x20, 0x70, 0x72,
+  0x6f, 0x6a, 0x65, 0x63, 0x74, 0x30, 0x5c, 0x30, 0x0d, 0x06, 0x09, 0x2a,
+  0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x4b,
+  0x00, 0x30, 0x48, 0x02, 0x41, 0x00, 0xb9, 0x83, 0x30, 0xca, 0xfb, 0xec,
+  0x11, 0x9e, 0x94, 0xb7, 0x89, 0xf2, 0x84, 0x2c, 0xda, 0xe1, 0x9a, 0x53,
+  0x3a, 0x1b, 0x6e, 0xc9, 0x85, 0x81, 0xf9, 0xa3, 0x41, 0xdb, 0xe2, 0x82,
+  0x3b, 0xfa, 0x80, 0x22, 0x3b, 0x81, 0x6d, 0x25, 0x73, 0x7e, 0xf6, 0x49,
+  0xcc, 0x69, 0x3c, 0x6c, 0xd8, 0x05, 0xfb, 0x92, 0x02, 0xcf, 0x19, 0x2a,
+  0x10, 0x7d, 0x69, 0x7a, 0xd8, 0x9d, 0xd3, 0xcf, 0x6c, 0xef, 0x02, 0x03,
+  0x01, 0x00, 0x01, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7,
+  0x0d, 0x01, 0x01, 0x05, 0x05, 0x00, 0x03, 0x81, 0x81, 0x00, 0x2d, 0x63,
+  0x58, 0x21, 0xe3, 0x8b, 0x37, 0x0d, 0x28, 0x68, 0x11, 0x0e, 0x4d, 0xdd,
+  0xf3, 0xea, 0xdb, 0xec, 0xd7, 0x09, 0x47, 0x2c, 0xa1, 0xd8, 0xd1, 0x71,
+  0x83, 0x11, 0xb4, 0x17, 0xbc, 0x83, 0xea, 0x5a, 0xd6, 0x73, 0x02, 0x25,
+  0x87, 0x01, 0x76, 0xfc, 0x59, 0x1a, 0xcf, 0xd9, 0x49, 0xc9, 0xf9, 0x1f,
+  0x5c, 0x3b, 0x24, 0x6a, 0x5c, 0xa5, 0xca, 0xe6, 0x5d, 0x34, 0x5b, 0x5f,
+  0xcf, 0x56, 0x9c, 0x71, 0xd2, 0x6b, 0xdd, 0x1f, 0x15, 0xae, 0x4d, 0xf1,
+  0xca, 0x35, 0xc8, 0xdd, 0x93, 0x1b, 0x58, 0x1e, 0x94, 0x08, 0xcf, 0xa0,
+  0x20, 0xb9, 0x75, 0xa5, 0x4c, 0x77, 0xf5, 0x7f, 0xed, 0xd5, 0xcd, 0x53,
+  0xaa, 0x87, 0xa6, 0x3c, 0xf5, 0x72, 0xd8, 0xd2, 0xb0, 0xf7, 0x11, 0xb0,
+  0x0e, 0xe9, 0x41, 0xd6, 0x8e, 0xd9, 0x07, 0xf8, 0xed, 0xf8, 0x67, 0x7f,
+  0x28, 0x18, 0xf0, 0x1b, 0x29, 0x11
+};
+unsigned int default_certificate_len = 390;

app/include/ssl/private_key.h

@@ -0,0 +1,30 @@
+unsigned char default_private_key[] = {
+  0x30, 0x82, 0x01, 0x3a, 0x02, 0x01, 0x00, 0x02, 0x41, 0x00, 0xb9, 0x83,
+  0x30, 0xca, 0xfb, 0xec, 0x11, 0x9e, 0x94, 0xb7, 0x89, 0xf2, 0x84, 0x2c,
+  0xda, 0xe1, 0x9a, 0x53, 0x3a, 0x1b, 0x6e, 0xc9, 0x85, 0x81, 0xf9, 0xa3,
+  0x41, 0xdb, 0xe2, 0x82, 0x3b, 0xfa, 0x80, 0x22, 0x3b, 0x81, 0x6d, 0x25,
+  0x73, 0x7e, 0xf6, 0x49, 0xcc, 0x69, 0x3c, 0x6c, 0xd8, 0x05, 0xfb, 0x92,
+  0x02, 0xcf, 0x19, 0x2a, 0x10, 0x7d, 0x69, 0x7a, 0xd8, 0x9d, 0xd3, 0xcf,
+  0x6c, 0xef, 0x02, 0x03, 0x01, 0x00, 0x01, 0x02, 0x40, 0x1d, 0x13, 0x92,
+  0xf2, 0x3d, 0xca, 0x22, 0x78, 0xd8, 0x96, 0x6b, 0xe8, 0xb7, 0x0e, 0xd0,
+  0xbf, 0xcb, 0x90, 0x7f, 0xeb, 0x0c, 0xd2, 0x49, 0x3a, 0xb6, 0x06, 0x00,
+  0xac, 0x96, 0x34, 0x13, 0x72, 0x4b, 0x8c, 0xd2, 0xb9, 0x35, 0xf5, 0x64,
+  0x18, 0xb2, 0x47, 0x5b, 0x9f, 0xbb, 0xf2, 0x5b, 0x2f, 0x66, 0x78, 0x2d,
+  0x0a, 0x76, 0x44, 0xc5, 0x4f, 0xdb, 0x7d, 0x13, 0xcf, 0xa5, 0x08, 0xdc,
+  0x01, 0x02, 0x21, 0x00, 0xdf, 0x9a, 0x89, 0xd0, 0xef, 0x23, 0xcf, 0x12,
+  0xac, 0x8a, 0x63, 0x1a, 0x8c, 0xc0, 0x3f, 0xf4, 0x38, 0x52, 0x3c, 0x9f,
+  0x19, 0x0a, 0x37, 0xd2, 0xcb, 0x5d, 0xeb, 0xb6, 0x2a, 0x33, 0xb0, 0x91,
+  0x02, 0x21, 0x00, 0xd4, 0x63, 0xd9, 0x6a, 0x18, 0x5b, 0xe8, 0xa8, 0x57,
+  0x4d, 0xd1, 0x9a, 0xa8, 0xd7, 0xe1, 0x65, 0x75, 0xb3, 0xb9, 0x5c, 0x94,
+  0x14, 0xca, 0x98, 0x41, 0x47, 0x9c, 0x0a, 0x22, 0x38, 0x05, 0x7f, 0x02,
+  0x20, 0x6a, 0xce, 0xfd, 0xef, 0xe0, 0x9b, 0x61, 0x49, 0x91, 0x43, 0x95,
+  0x6d, 0x54, 0x38, 0x6d, 0x14, 0x32, 0x67, 0x0d, 0xf0, 0x0d, 0x5c, 0xf5,
+  0x27, 0x6a, 0xdf, 0x55, 0x3d, 0xb1, 0xd0, 0xf9, 0x11, 0x02, 0x21, 0x00,
+  0xba, 0x94, 0xa0, 0xf9, 0xb0, 0x3e, 0x85, 0x8b, 0xe5, 0x6e, 0x4a, 0x95,
+  0x88, 0x80, 0x65, 0xd5, 0x00, 0xea, 0x8b, 0x0b, 0x46, 0x57, 0x61, 0x87,
+  0x11, 0xc9, 0xfb, 0xcd, 0x77, 0x34, 0x29, 0xb7, 0x02, 0x20, 0x06, 0x8d,
+  0x41, 0x11, 0x47, 0x93, 0xcb, 0xad, 0xda, 0x5d, 0xe1, 0x9d, 0x49, 0x8d,
+  0xe0, 0xab, 0x48, 0xe6, 0x18, 0x28, 0x4a, 0x94, 0xae, 0xf9, 0xad, 0xc5,
+  0x5b, 0x0b, 0x15, 0xc6, 0x73, 0x17
+};
+unsigned int default_private_key_len = 318;

app/include/ssl/ssl_bigint.h

@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2007, Cameron Rich
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, 
+ *   this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, 
+ *   this list of conditions and the following disclaimer in the documentation 
+ *   and/or other materials provided with the distribution.
+ * * Neither the name of the axTLS project nor the names of its contributors 
+ *   may be used to endorse or promote products derived from this software 
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef BIGINT_HEADER
+#define BIGINT_HEADER
+
+#include "ssl/ssl_crypto.h"
+
+BI_CTX *bi_initialize(void);
+void bi_terminate(BI_CTX *ctx);
+void bi_permanent(bigint *bi);
+void bi_depermanent(bigint *bi);
+void bi_clear_cache(BI_CTX *ctx);
+void bi_free(BI_CTX *ctx, bigint *bi);
+bigint *bi_copy(bigint *bi);
+bigint *bi_clone(BI_CTX *ctx, const bigint *bi);
+void bi_export(BI_CTX *ctx, bigint *bi, uint8_t *data, int size);
+bigint *bi_import(BI_CTX *ctx, const uint8_t *data, int len);
+bigint *int_to_bi(BI_CTX *ctx, comp i);
+
+/* the functions that actually do something interesting */
+bigint *bi_add(BI_CTX *ctx, bigint *bia, bigint *bib);
+bigint *bi_subtract(BI_CTX *ctx, bigint *bia, 
+        bigint *bib, int *is_negative);
+bigint *bi_divide(BI_CTX *ctx, bigint *bia, bigint *bim, int is_mod);
+bigint *bi_multiply(BI_CTX *ctx, bigint *bia, bigint *bib);
+bigint *bi_mod_power(BI_CTX *ctx, bigint *bi, bigint *biexp);
+bigint *bi_mod_power2(BI_CTX *ctx, bigint *bi, bigint *bim, bigint *biexp);
+int bi_compare(bigint *bia, bigint *bib);
+void bi_set_mod(BI_CTX *ctx, bigint *bim, int mod_offset);
+void bi_free_mod(BI_CTX *ctx, int mod_offset);
+
+#ifdef CONFIG_SSL_FULL_MODE
+void bi_print(const char *label, bigint *bi);
+bigint *bi_str_import(BI_CTX *ctx, const char *data);
+#endif
+
+/**
+ * @def bi_mod
+ * Find the residue of B. bi_set_mod() must be called before hand.
+ */
+#define bi_mod(A, B)      bi_divide(A, B, ctx->bi_mod[ctx->mod_offset], 1)
+
+/**
+ * bi_residue() is technically the same as bi_mod(), but it uses the
+ * appropriate reduction technique (which is bi_mod() when doing classical
+ * reduction).
+ */
+#if defined(CONFIG_BIGINT_MONTGOMERY)
+#define bi_residue(A, B)         bi_mont(A, B)
+bigint *bi_mont(BI_CTX *ctx, bigint *bixy);
+#elif defined(CONFIG_BIGINT_BARRETT)
+#define bi_residue(A, B)         bi_barrett(A, B)
+bigint *bi_barrett(BI_CTX *ctx, bigint *bi);
+#else /* if defined(CONFIG_BIGINT_CLASSICAL) */
+#define bi_residue(A, B)         bi_mod(A, B)
+#endif
+
+#ifdef CONFIG_BIGINT_SQUARE
+bigint *bi_square(BI_CTX *ctx, bigint *bi);
+#else
+#define bi_square(A, B)     bi_multiply(A, bi_copy(B), B)
+#endif
+
+#ifdef CONFIG_BIGINT_CRT
+bigint *bi_crt(BI_CTX *ctx, bigint *bi,
+        bigint *dP, bigint *dQ,
+        bigint *p, bigint *q,
+        bigint *qInv);
+#endif
+
+#endif

app/include/ssl/ssl_bigint_impl.h

@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) 2007, Cameron Rich
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, 
+ *   this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, 
+ *   this list of conditions and the following disclaimer in the documentation 
+ *   and/or other materials provided with the distribution.
+ * * Neither the name of the axTLS project nor the names of its contributors 
+ *   may be used to endorse or promote products derived from this software 
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef BIGINT_IMPL_HEADER
+#define BIGINT_IMPL_HEADER
+
+/* Maintain a number of precomputed variables when doing reduction */
+#define BIGINT_M_OFFSET     0    /**< Normal modulo offset. */
+#ifdef CONFIG_BIGINT_CRT
+#define BIGINT_P_OFFSET     1    /**< p modulo offset. */
+#define BIGINT_Q_OFFSET     2    /**< q module offset. */
+#define BIGINT_NUM_MODS     3    /**< The number of modulus constants used. */
+#else
+#define BIGINT_NUM_MODS     1    
+#endif
+
+/* Architecture specific functions for big ints */
+#if defined(CONFIG_INTEGER_8BIT)
+#define COMP_RADIX          256U       /**< Max component + 1 */
+#define COMP_MAX            0xFFFFU/**< (Max dbl comp -1) */
+#define COMP_BIT_SIZE       8   /**< Number of bits in a component. */
+#define COMP_BYTE_SIZE      1   /**< Number of bytes in a component. */
+#define COMP_NUM_NIBBLES    2   /**< Used For diagnostics only. */
+typedef uint8_t comp;	        /**< A single precision component. */
+typedef uint16_t long_comp;     /**< A double precision component. */
+typedef int16_t slong_comp;     /**< A signed double precision component. */
+#elif defined(CONFIG_INTEGER_16BIT)
+#define COMP_RADIX          65536U       /**< Max component + 1 */
+#define COMP_MAX            0xFFFFFFFFU/**< (Max dbl comp -1) */
+#define COMP_BIT_SIZE       16  /**< Number of bits in a component. */
+#define COMP_BYTE_SIZE      2   /**< Number of bytes in a component. */
+#define COMP_NUM_NIBBLES    4   /**< Used For diagnostics only. */
+typedef uint16_t comp;	        /**< A single precision component. */
+typedef uint32_t long_comp;     /**< A double precision component. */
+typedef int32_t slong_comp;     /**< A signed double precision component. */
+#else /* regular 32 bit */
+#ifdef WIN32
+#define COMP_RADIX          4294967296i64         
+#define COMP_MAX            0xFFFFFFFFFFFFFFFFui64
+#else
+#define COMP_RADIX          4294967296ULL         /**< Max component + 1 */
+#define COMP_MAX            0xFFFFFFFFFFFFFFFFULL/**< (Max dbl comp -1) */
+#endif
+#define COMP_BIT_SIZE       32  /**< Number of bits in a component. */
+#define COMP_BYTE_SIZE      4   /**< Number of bytes in a component. */
+#define COMP_NUM_NIBBLES    8   /**< Used For diagnostics only. */
+typedef uint32_t comp;	        /**< A single precision component. */
+typedef uint64_t long_comp;     /**< A double precision component. */
+typedef sint64_t slong_comp;     /**< A signed double precision component. */
+#endif
+
+/**
+ * @struct  _bigint
+ * @brief A big integer basic object
+ */
+struct _bigint
+{
+    struct _bigint* next;       /**< The next bigint in the cache. */
+    short size;                 /**< The number of components in this bigint. */
+    short max_comps;            /**< The heapsize allocated for this bigint */
+    int refs;                   /**< An internal reference count. */
+    comp* comps;                /**< A ptr to the actual component data */
+};
+
+typedef struct _bigint bigint;  /**< An alias for _bigint */
+
+/**
+ * Maintains the state of the cache, and a number of variables used in 
+ * reduction.
+ */
+typedef struct /**< A big integer "session" context. */
+{
+    bigint *active_list;                    /**< Bigints currently used. */
+    bigint *free_list;                      /**< Bigints not used. */
+    bigint *bi_radix;                       /**< The radix used. */
+    bigint *bi_mod[BIGINT_NUM_MODS];        /**< modulus */
+
+#if defined(CONFIG_BIGINT_MONTGOMERY)
+    bigint *bi_RR_mod_m[BIGINT_NUM_MODS];   /**< R^2 mod m */
+    bigint *bi_R_mod_m[BIGINT_NUM_MODS];    /**< R mod m */
+    comp N0_dash[BIGINT_NUM_MODS];
+#elif defined(CONFIG_BIGINT_BARRETT)
+    bigint *bi_mu[BIGINT_NUM_MODS];         /**< Storage for mu */
+#endif
+    bigint *bi_normalised_mod[BIGINT_NUM_MODS]; /**< Normalised mod storage. */
+    bigint **g;                 /**< Used by sliding-window. */
+    int window;                 /**< The size of the sliding window */
+    int active_count;           /**< Number of active bigints. */
+    int free_count;             /**< Number of free bigints. */
+
+#ifdef CONFIG_BIGINT_MONTGOMERY
+    uint8_t use_classical;      /**< Use classical reduction. */
+#endif
+    uint8_t mod_offset;         /**< The mod offset we are using */
+} BI_CTX;
+
+#ifndef WIN32
+#define max(a,b) ((a)>(b)?(a):(b))  /**< Find the maximum of 2 numbers. */
+#define min(a,b) ((a)<(b)?(a):(b))  /**< Find the minimum of 2 numbers. */
+#endif
+
+#define PERMANENT           0x7FFF55AA  /**< A magic number for permanents. */
+
+#endif

app/include/ssl/ssl_cert.h

@@ -0,0 +1,43 @@
+unsigned char default_certificate[] = {
+  0x30, 0x82, 0x01, 0xd7, 0x30, 0x82, 0x01, 0x40, 0x02, 0x09, 0x00, 0xab,
+  0x08, 0x18, 0xa7, 0x03, 0x07, 0x27, 0xfd, 0x30, 0x0d, 0x06, 0x09, 0x2a,
+  0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x05, 0x05, 0x00, 0x30, 0x34,
+  0x31, 0x32, 0x30, 0x30, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13, 0x29, 0x61,
+  0x78, 0x54, 0x4c, 0x53, 0x20, 0x50, 0x72, 0x6f, 0x6a, 0x65, 0x63, 0x74,
+  0x20, 0x44, 0x6f, 0x64, 0x67, 0x79, 0x20, 0x43, 0x65, 0x72, 0x74, 0x69,
+  0x66, 0x69, 0x63, 0x61, 0x74, 0x65, 0x20, 0x41, 0x75, 0x74, 0x68, 0x6f,
+  0x72, 0x69, 0x74, 0x79, 0x30, 0x1e, 0x17, 0x0d, 0x31, 0x30, 0x31, 0x32,
+  0x32, 0x36, 0x32, 0x32, 0x33, 0x33, 0x33, 0x39, 0x5a, 0x17, 0x0d, 0x32,
+  0x34, 0x30, 0x39, 0x30, 0x33, 0x32, 0x32, 0x33, 0x33, 0x33, 0x39, 0x5a,
+  0x30, 0x2c, 0x31, 0x16, 0x30, 0x14, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13,
+  0x0d, 0x61, 0x78, 0x54, 0x4c, 0x53, 0x20, 0x50, 0x72, 0x6f, 0x6a, 0x65,
+  0x63, 0x74, 0x31, 0x12, 0x30, 0x10, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13,
+  0x09, 0x31, 0x32, 0x37, 0x2e, 0x30, 0x2e, 0x30, 0x2e, 0x31, 0x30, 0x81,
+  0x9f, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01,
+  0x01, 0x01, 0x05, 0x00, 0x03, 0x81, 0x8d, 0x00, 0x30, 0x81, 0x89, 0x02,
+  0x81, 0x81, 0x00, 0xcd, 0xfd, 0x89, 0x48, 0xbe, 0x36, 0xb9, 0x95, 0x76,
+  0xd4, 0x13, 0x30, 0x0e, 0xbf, 0xb2, 0xed, 0x67, 0x0a, 0xc0, 0x16, 0x3f,
+  0x51, 0x09, 0x9d, 0x29, 0x2f, 0xb2, 0x6d, 0x3f, 0x3e, 0x6c, 0x2f, 0x90,
+  0x80, 0xa1, 0x71, 0xdf, 0xbe, 0x38, 0xc5, 0xcb, 0xa9, 0x9a, 0x40, 0x14,
+  0x90, 0x0a, 0xf9, 0xb7, 0x07, 0x0b, 0xe1, 0xda, 0xe7, 0x09, 0xbf, 0x0d,
+  0x57, 0x41, 0x86, 0x60, 0xa1, 0xc1, 0x27, 0x91, 0x5b, 0x0a, 0x98, 0x46,
+  0x1b, 0xf6, 0xa2, 0x84, 0xf8, 0x65, 0xc7, 0xce, 0x2d, 0x96, 0x17, 0xaa,
+  0x91, 0xf8, 0x61, 0x04, 0x50, 0x70, 0xeb, 0xb4, 0x43, 0xb7, 0xdc, 0x9a,
+  0xcc, 0x31, 0x01, 0x14, 0xd4, 0xcd, 0xcc, 0xc2, 0x37, 0x6d, 0x69, 0x82,
+  0xd6, 0xc6, 0xc4, 0xbe, 0xf2, 0x34, 0xa5, 0xc9, 0xa6, 0x19, 0x53, 0x32,
+  0x7a, 0x86, 0x0e, 0x91, 0x82, 0x0f, 0xa1, 0x42, 0x54, 0xaa, 0x01, 0x02,
+  0x03, 0x01, 0x00, 0x01, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86,
+  0xf7, 0x0d, 0x01, 0x01, 0x05, 0x05, 0x00, 0x03, 0x81, 0x81, 0x00, 0x40,
+  0xb4, 0x94, 0x9a, 0xa8, 0x89, 0x72, 0x1d, 0x07, 0xe5, 0xb3, 0x6b, 0x88,
+  0x21, 0xc2, 0x38, 0x36, 0x9e, 0x7a, 0x8c, 0x49, 0x48, 0x68, 0x0c, 0x06,
+  0xe8, 0xdb, 0x1f, 0x4e, 0x05, 0xe6, 0x31, 0xe3, 0xfd, 0xe6, 0x0d, 0x6b,
+  0xd8, 0x13, 0x17, 0xe0, 0x2d, 0x0d, 0xb8, 0x7e, 0xcb, 0x20, 0x6c, 0xa8,
+  0x73, 0xa7, 0xfd, 0xe3, 0xa7, 0xfa, 0xf3, 0x02, 0x60, 0x78, 0x1f, 0x13,
+  0x40, 0x45, 0xee, 0x75, 0xf5, 0x10, 0xfd, 0x8f, 0x68, 0x74, 0xd4, 0xac,
+  0xae, 0x04, 0x09, 0x55, 0x2c, 0xdb, 0xd8, 0x07, 0x07, 0x65, 0x69, 0x27,
+  0x6e, 0xbf, 0x5e, 0x61, 0x40, 0x56, 0x8b, 0xd7, 0x33, 0x3b, 0xff, 0x6e,
+  0x53, 0x7e, 0x9d, 0x3f, 0xc0, 0x40, 0x3a, 0xab, 0xa0, 0x50, 0x4e, 0x80,
+  0x47, 0x46, 0x0d, 0x1e, 0xdb, 0x4c, 0xf1, 0x1b, 0x5d, 0x3c, 0x2a, 0x54,
+  0xa7, 0x4d, 0xfa, 0x7b, 0x72, 0x66, 0xc5
+};
+unsigned int default_certificate_len = 475;

app/include/ssl/ssl_config.h

@@ -0,0 +1,127 @@
+/*
+ * Automatically generated header file: don't edit
+ */
+
+#define HAVE_DOT_CONFIG 1
+#undef CONFIG_PLATFORM_LINUX
+#define CONFIG_PLATFORM_CYGWIN 1
+#undef CONFIG_PLATFORM_WIN32
+
+/*
+ * General Configuration
+ */
+#define PREFIX "/usr/local"
+#define CONFIG_DEBUG 1
+#undef CONFIG_STRIP_UNWANTED_SECTIONS
+#undef CONFIG_VISUAL_STUDIO_7_0
+#undef CONFIG_VISUAL_STUDIO_8_0
+#undef CONFIG_VISUAL_STUDIO_10_0
+#define CONFIG_VISUAL_STUDIO_7_0_BASE ""
+#define CONFIG_VISUAL_STUDIO_8_0_BASE ""
+#define CONFIG_VISUAL_STUDIO_10_0_BASE ""
+#define CONFIG_EXTRA_CFLAGS_OPTIONS ""
+#define CONFIG_EXTRA_LDFLAGS_OPTIONS ""
+
+/*
+ * SSL Library
+ */
+#undef CONFIG_SSL_SERVER_ONLY
+#undef CONFIG_SSL_CERT_VERIFICATION
+#undef CONFIG_SSL_ENABLE_CLIENT
+#define CONFIG_SSL_FULL_MODE 1
+#undef CONFIG_SSL_SKELETON_MODE
+#undef CONFIG_SSL_PROT_LOW
+#define CONFIG_SSL_PROT_MEDIUM 1
+#undef CONFIG_SSL_PROT_HIGH
+#define CONFIG_SSL_USE_DEFAULT_KEY
+#define CONFIG_SSL_PRIVATE_KEY_LOCATION ""
+#define CONFIG_SSL_PRIVATE_KEY_PASSWORD ""
+#define CONFIG_SSL_X509_CERT_LOCATION ""
+#undef CONFIG_SSL_GENERATE_X509_CERT
+#define CONFIG_SSL_X509_COMMON_NAME ""
+#define CONFIG_SSL_X509_ORGANIZATION_NAME ""
+#define CONFIG_SSL_X509_ORGANIZATION_UNIT_NAME ""
+#undef CONFIG_SSL_ENABLE_V23_HANDSHAKE
+#define CONFIG_SSL_HAS_PEM 1
+#undef CONFIG_SSL_USE_PKCS12
+#define CONFIG_SSL_EXPIRY_TIME 24
+#define CONFIG_X509_MAX_CA_CERTS 150
+#define CONFIG_SSL_MAX_CERTS 3
+#undef CONFIG_SSL_CTX_MUTEXING
+//#define CONFIG_USE_DEV_URANDOM 1
+#undef CONFIG_WIN32_USE_CRYPTO_LIB
+#undef CONFIG_OPENSSL_COMPATIBLE
+#undef CONFIG_PERFORMANCE_TESTING
+#define CONFIG_SSL_TEST 1
+#undef CONFIG_AXTLSWRAP
+#define CONFIG_AXHTTPD 1
+
+/*
+ * Axhttpd Configuration
+ */
+#undef CONFIG_HTTP_STATIC_BUILD
+#define CONFIG_HTTP_PORT 80
+#define CONFIG_HTTP_HTTPS_PORT 443
+#define CONFIG_HTTP_SESSION_CACHE_SIZE 5
+#define CONFIG_HTTP_WEBROOT "../www"
+#define CONFIG_HTTP_TIMEOUT 300
+
+/*
+ * CGI
+ */
+#undef CONFIG_HTTP_HAS_CGI 
+#define CONFIG_HTTP_CGI_EXTENSIONS ".lua,.lp,.php"
+#define CONFIG_HTTP_ENABLE_LUA 1
+#define CONFIG_HTTP_LUA_PREFIX "/usr"
+#undef CONFIG_HTTP_BUILD_LUA
+#define CONFIG_HTTP_CGI_LAUNCHER "/usr/bin/cgi"
+#define CONFIG_HTTP_DIRECTORIES 1
+#define CONFIG_HTTP_HAS_AUTHORIZATION 1
+#undef CONFIG_HTTP_HAS_IPV6
+#undef CONFIG_HTTP_ENABLE_DIFFERENT_USER
+#define CONFIG_HTTP_USER ""
+#define CONFIG_HTTP_VERBOSE 0
+#undef CONFIG_HTTP_IS_DAEMON
+
+/*
+ * Language Bindings
+ */
+#undef CONFIG_BINDINGS
+#undef CONFIG_CSHARP_BINDINGS
+#undef CONFIG_VBNET_BINDINGS
+#define CONFIG_DOT_NET_FRAMEWORK_BASE ""
+#undef CONFIG_JAVA_BINDINGS
+#define CONFIG_JAVA_HOME ""
+#undef CONFIG_PERL_BINDINGS
+#define CONFIG_PERL_CORE ""
+#define CONFIG_PERL_LIB ""
+#undef CONFIG_LUA_BINDINGS
+#define CONFIG_LUA_CORE ""
+
+/*
+ * Samples
+ */
+#define CONFIG_SAMPLES 1
+#define CONFIG_C_SAMPLES 1
+#undef CONFIG_CSHARP_SAMPLES
+#undef CONFIG_VBNET_SAMPLES
+#undef CONFIG_JAVA_SAMPLES
+#undef CONFIG_PERL_SAMPLES
+#undef CONFIG_LUA_SAMPLES
+
+/*
+ * BigInt Options
+ */
+#undef CONFIG_BIGINT_CLASSICAL
+#undef CONFIG_BIGINT_MONTGOMERY
+#define CONFIG_BIGINT_BARRETT 1
+#define CONFIG_BIGINT_CRT 1
+#undef CONFIG_BIGINT_KARATSUBA
+#define MUL_KARATSUBA_THRESH 
+#define SQU_KARATSUBA_THRESH 
+#define CONFIG_BIGINT_SLIDING_WINDOW 1
+#define CONFIG_BIGINT_SQUARE 1
+#define CONFIG_BIGINT_CHECK_ON 1
+#define CONFIG_INTEGER_32BIT 1
+#undef CONFIG_INTEGER_16BIT
+#undef CONFIG_INTEGER_8BIT

app/include/ssl/ssl_crypto.h

@@ -0,0 +1,230 @@
+/*
+ * Copyright (c) 2007, Cameron Rich
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, 
+ *   this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, 
+ *   this list of conditions and the following disclaimer in the documentation 
+ *   and/or other materials provided with the distribution.
+ * * Neither the name of the axTLS project nor the names of its contributors 
+ *   may be used to endorse or promote products derived from this software 
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * @file crypto.h
+ */
+
+#ifndef HEADER_CRYPTO_H
+#define HEADER_CRYPTO_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "ssl/ssl_config.h"
+#include "ssl/ssl_bigint_impl.h"
+#include "ssl/ssl_bigint.h"
+
+#ifndef STDCALL
+#define STDCALL
+#endif
+#ifndef EXP_FUNC
+#define EXP_FUNC
+#endif
+
+
+/* enable features based on a 'super-set' capbaility. */
+#if defined(CONFIG_SSL_FULL_MODE) 
+#define CONFIG_SSL_ENABLE_CLIENT
+#define CONFIG_SSL_CERT_VERIFICATION
+#elif defined(CONFIG_SSL_ENABLE_CLIENT)
+#define CONFIG_SSL_CERT_VERIFICATION
+#endif
+
+/**************************************************************************
+ * AES declarations 
+ **************************************************************************/
+
+#define AES_MAXROUNDS			14
+#define AES_BLOCKSIZE           16
+#define AES_IV_SIZE             16
+
+typedef struct aes_key_st 
+{
+    uint16_t rounds;
+    uint16_t key_size;
+    uint32_t ks[(AES_MAXROUNDS+1)*8];
+    uint8_t iv[AES_IV_SIZE];
+} AES_CTX;
+
+typedef enum
+{
+    AES_MODE_128,
+    AES_MODE_256
+} AES_MODE;
+
+void AES_set_key(AES_CTX *ctx, const uint8_t *key, 
+        const uint8_t *iv, AES_MODE mode);
+void AES_cbc_encrypt(AES_CTX *ctx, const uint8_t *msg, 
+        uint8_t *out, int length);
+void AES_cbc_decrypt(AES_CTX *ks, const uint8_t *in, uint8_t *out, int length);
+void AES_convert_key(AES_CTX *ctx);
+
+/**************************************************************************
+ * RC4 declarations 
+ **************************************************************************/
+
+typedef struct 
+{
+    uint8_t x, y, m[256];
+} RC4_CTX;
+
+void RC4_setup(RC4_CTX *s, const uint8_t *key, int length);
+void RC4_crypt(RC4_CTX *s, const uint8_t *msg, uint8_t *data, int length);
+
+/**************************************************************************
+ * SHA1 declarations 
+ **************************************************************************/
+
+#define SHA1_SIZE   20
+
+/*
+ *  This structure will hold context information for the SHA-1
+ *  hashing operation
+ */
+typedef struct 
+{
+    uint32_t Intermediate_Hash[SHA1_SIZE/4]; /* Message Digest */
+    uint32_t Length_Low;            /* Message length in bits */
+    uint32_t Length_High;           /* Message length in bits */
+    uint16_t Message_Block_Index;   /* Index into message block array   */
+    uint8_t Message_Block[64];      /* 512-bit message blocks */
+} SHA1_CTX;
+
+void SHA1_Init(SHA1_CTX *);
+void SHA1_Update(SHA1_CTX *, const uint8_t * msg, int len);
+void SHA1_Final(uint8_t *digest, SHA1_CTX *);
+
+/**************************************************************************
+ * MD2 declarations 
+ **************************************************************************/
+
+#define MD2_SIZE 16
+
+typedef struct
+{
+    unsigned char cksum[16];    /* checksum of the data block */
+    unsigned char state[48];    /* intermediate digest state */
+    unsigned char buffer[16];   /* data block being processed */
+    int left;                   /* amount of data in buffer */
+} MD2_CTX;
+
+EXP_FUNC void STDCALL MD2_Init(MD2_CTX *ctx);
+EXP_FUNC void STDCALL MD2_Update(MD2_CTX *ctx, const uint8_t *input, int ilen);
+EXP_FUNC void STDCALL MD2_Final(uint8_t *digest, MD2_CTX *ctx);
+
+/**************************************************************************
+ * MD5 declarations 
+ **************************************************************************/
+
+#define MD5_SIZE    16
+
+typedef struct 
+{
+  uint32_t state[4];        /* state (ABCD) */
+  uint32_t count[2];        /* number of bits, modulo 2^64 (lsb first) */
+  uint8_t buffer[64];       /* input buffer */
+} MD5_CTX;
+
+EXP_FUNC void STDCALL MD5_Init(MD5_CTX *);
+EXP_FUNC void STDCALL MD5_Update(MD5_CTX *, const uint8_t *msg, int len);
+EXP_FUNC void STDCALL MD5_Final(uint8_t *digest, MD5_CTX *);
+
+/**************************************************************************
+ * HMAC declarations 
+ **************************************************************************/
+void ssl_hmac_md5(const uint8_t *msg, int length, const uint8_t *key, 
+        int key_len, uint8_t *digest);// fix hmac_md5 to ssl_hmac_md5, discriminate ieee80211
+void ssl_hmac_sha1(const uint8_t *msg, int length, const uint8_t *key, 
+        int key_len, uint8_t *digest);// fix hmac_md5 to ssl_hmac_sha1, discriminate ieee80211
+
+/**************************************************************************
+ * RSA declarations 
+ **************************************************************************/
+
+typedef struct 
+{
+    bigint *m;              /* modulus */
+    bigint *e;              /* public exponent */
+    bigint *d;              /* private exponent */
+#ifdef CONFIG_BIGINT_CRT
+    bigint *p;              /* p as in m = pq */
+    bigint *q;              /* q as in m = pq */
+    bigint *dP;             /* d mod (p-1) */
+    bigint *dQ;             /* d mod (q-1) */
+    bigint *qInv;           /* q^-1 mod p */
+#endif
+    int num_octets;
+    BI_CTX *bi_ctx;
+} RSA_CTX;
+
+void RSA_priv_key_new(RSA_CTX **rsa_ctx, 
+        const uint8_t *modulus, int mod_len,
+        const uint8_t *pub_exp, int pub_len,
+        const uint8_t *priv_exp, int priv_len
+#ifdef CONFIG_BIGINT_CRT
+      , const uint8_t *p, int p_len,
+        const uint8_t *q, int q_len,
+        const uint8_t *dP, int dP_len,
+        const uint8_t *dQ, int dQ_len,
+        const uint8_t *qInv, int qInv_len
+#endif
+        );
+void RSA_pub_key_new(RSA_CTX **rsa_ctx, 
+        const uint8_t *modulus, int mod_len,
+        const uint8_t *pub_exp, int pub_len);
+void RSA_free(RSA_CTX *ctx);
+int RSA_decrypt(const RSA_CTX *ctx, const uint8_t *in_data, uint8_t *out_data,
+        int is_decryption);
+bigint *RSA_private(const RSA_CTX *c, bigint *bi_msg);
+#if defined(CONFIG_SSL_CERT_VERIFICATION) || defined(CONFIG_SSL_GENERATE_X509_CERT)
+bigint *RSA_sign_verify(BI_CTX *ctx, const uint8_t *sig, int sig_len,
+        bigint *modulus, bigint *pub_exp);
+bigint *RSA_public(const RSA_CTX * c, bigint *bi_msg);
+int RSA_encrypt(const RSA_CTX *ctx, const uint8_t *in_data, uint16_t in_len, 
+        uint8_t *out_data, int is_signing);
+void RSA_print(const RSA_CTX *ctx);
+#endif
+
+/**************************************************************************
+ * RNG declarations 
+ **************************************************************************/
+EXP_FUNC void STDCALL RNG_initialize(void);
+EXP_FUNC void STDCALL RNG_custom_init(const uint8_t *seed_buf, int size);
+EXP_FUNC void STDCALL RNG_terminate(void);
+EXP_FUNC void STDCALL get_random(int num_rand_bytes, uint8_t *rand_data);
+void get_random_NZ(int num_rand_bytes, uint8_t *rand_data);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif 

app/include/ssl/ssl_crypto_misc.h

@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2007, Cameron Rich
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, 
+ *   this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, 
+ *   this list of conditions and the following disclaimer in the documentation 
+ *   and/or other materials provided with the distribution.
+ * * Neither the name of the axTLS project nor the names of its contributors 
+ *   may be used to endorse or promote products derived from this software 
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/**
+ * @file crypto_misc.h
+ */
+
+#ifndef HEADER_CRYPTO_MISC_H
+#define HEADER_CRYPTO_MISC_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "ssl/ssl_crypto.h"
+#include "ssl/ssl_bigint.h"
+
+/**************************************************************************
+ * X509 declarations 
+ **************************************************************************/
+#define X509_OK                             0
+#define X509_NOT_OK                         -1
+#define X509_VFY_ERROR_NO_TRUSTED_CERT      -2
+#define X509_VFY_ERROR_BAD_SIGNATURE        -3      
+#define X509_VFY_ERROR_NOT_YET_VALID        -4
+#define X509_VFY_ERROR_EXPIRED              -5
+#define X509_VFY_ERROR_SELF_SIGNED          -6
+#define X509_VFY_ERROR_INVALID_CHAIN        -7
+#define X509_VFY_ERROR_UNSUPPORTED_DIGEST   -8
+#define X509_INVALID_PRIV_KEY               -9
+
+/*
+ * The Distinguished Name
+ */
+#define X509_NUM_DN_TYPES                   3
+#define X509_COMMON_NAME                    0
+#define X509_ORGANIZATION                   1
+#define X509_ORGANIZATIONAL_UNIT            2
+
+struct _x509_ctx
+{
+    char *ca_cert_dn[X509_NUM_DN_TYPES];
+    char *cert_dn[X509_NUM_DN_TYPES];
+    char **subject_alt_dnsnames;
+    time_t not_before;
+    time_t not_after;
+    uint8_t *signature;
+    uint16_t sig_len;
+    uint8_t sig_type;
+    RSA_CTX *rsa_ctx;
+    bigint *digest;
+    struct _x509_ctx *next;
+};
+
+typedef struct _x509_ctx X509_CTX;
+
+#ifdef CONFIG_SSL_CERT_VERIFICATION
+typedef struct 
+{
+    X509_CTX *cert[CONFIG_X509_MAX_CA_CERTS];
+} CA_CERT_CTX;
+#endif
+
+int x509_new(const uint8_t *cert, int *len, X509_CTX **ctx);
+void x509_free(X509_CTX *x509_ctx);
+#ifdef CONFIG_SSL_CERT_VERIFICATION
+int x509_verify(const CA_CERT_CTX *ca_cert_ctx, const X509_CTX *cert);
+#endif
+#ifdef CONFIG_SSL_FULL_MODE
+void x509_print(const X509_CTX *cert, CA_CERT_CTX *ca_cert_ctx);
+const char * x509_display_error(int error);
+#endif
+
+/**************************************************************************
+ * ASN1 declarations 
+ **************************************************************************/
+#define ASN1_INTEGER            0x02
+#define ASN1_BIT_STRING         0x03
+#define ASN1_OCTET_STRING       0x04
+#define ASN1_NULL               0x05
+#define ASN1_PRINTABLE_STR2     0x0C
+#define ASN1_OID                0x06
+#define ASN1_PRINTABLE_STR2     0x0C
+#define ASN1_PRINTABLE_STR      0x13
+#define ASN1_TELETEX_STR        0x14
+#define ASN1_IA5_STR            0x16
+#define ASN1_UTC_TIME           0x17
+#define ASN1_UNICODE_STR        0x1e
+#define ASN1_SEQUENCE           0x30
+#define ASN1_CONTEXT_DNSNAME	0x82
+#define ASN1_SET                0x31
+#define ASN1_V3_DATA			0xa3
+#define ASN1_IMPLICIT_TAG       0x80
+#define ASN1_CONTEXT_DNSNAME	0x82
+#define ASN1_EXPLICIT_TAG       0xa0
+#define ASN1_V3_DATA			0xa3
+
+#define SIG_TYPE_MD2            0x02
+#define SIG_TYPE_MD5            0x04
+#define SIG_TYPE_SHA1           0x05
+
+int get_asn1_length(const uint8_t *buf, int *offset);
+int asn1_get_private_key(const uint8_t *buf, int len, RSA_CTX **rsa_ctx);
+int asn1_next_obj(const uint8_t *buf, int *offset, int obj_type);
+int asn1_skip_obj(const uint8_t *buf, int *offset, int obj_type);
+int asn1_get_int(const uint8_t *buf, int *offset, uint8_t **object);
+int asn1_version(const uint8_t *cert, int *offset, X509_CTX *x509_ctx);
+int asn1_validity(const uint8_t *cert, int *offset, X509_CTX *x509_ctx);
+int asn1_name(const uint8_t *cert, int *offset, char *dn[]);
+int asn1_public_key(const uint8_t *cert, int *offset, X509_CTX *x509_ctx);
+#ifdef CONFIG_SSL_CERT_VERIFICATION
+int asn1_signature(const uint8_t *cert, int *offset, X509_CTX *x509_ctx);
+int asn1_find_subjectaltname(const uint8_t* cert, int offset);
+int asn1_compare_dn(char * const dn1[], char * const dn2[]);
+#endif /* CONFIG_SSL_CERT_VERIFICATION */
+int asn1_signature_type(const uint8_t *cert, 
+                                int *offset, X509_CTX *x509_ctx);
+
+/**************************************************************************
+ * MISC declarations 
+ **************************************************************************/
+#define SALT_SIZE               8
+
+extern const char * const unsupported_str;
+
+typedef void (*crypt_func)(void *, const uint8_t *, uint8_t *, int);
+typedef void (*hmac_func)(const uint8_t *msg, int length, const uint8_t *key, 
+        int key_len, uint8_t *digest);
+
+int get_file(const char *filename, uint8_t **buf);
+
+#if defined(CONFIG_SSL_FULL_MODE) || defined(WIN32) || defined(CONFIG_DEBUG)
+EXP_FUNC void STDCALL print_blob(const char *format, const uint8_t *data, int size, ...);
+#else
+    #define print_blob(...)
+#endif
+
+EXP_FUNC int STDCALL base64_decode(const char *in,  int len,
+                    uint8_t *out, int *outlen);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif 

app/include/ssl/ssl_os_int.h

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2012, Cameron Rich
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, 
+ *   this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, 
+ *   this list of conditions and the following disclaimer in the documentation 
+ *   and/or other materials provided with the distribution.
+ * * Neither the name of the axTLS project nor the names of its contributors 
+ *   may be used to endorse or promote products derived from this software 
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * @file os_int.h
+ *
+ * Ensure a consistent bit size 
+ */
+
+#ifndef HEADER_OS_INT_H
+#define HEADER_OS_INT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(WIN32)
+typedef UINT8 uint8_t;
+typedef INT8 int8_t;
+typedef UINT16 uint16_t;
+typedef INT16 int16_t;
+typedef UINT32 uint32_t;
+typedef INT32 int32_t;
+typedef UINT64 uint64_t;
+typedef INT64 int64_t;
+#else   /* Not Win32 */
+
+#ifdef CONFIG_PLATFORM_SOLARIS
+#include <inttypes.h>
+#else
+//#include <stdint.h>
+#endif /* Not Solaris */
+
+#endif /* Not Win32 */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif 

app/include/ssl/ssl_os_port.h

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2007, Cameron Rich
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, 
+ *   this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, 
+ *   this list of conditions and the following disclaimer in the documentation 
+ *   and/or other materials provided with the distribution.
+ * * Neither the name of the axTLS project nor the names of its contributors 
+ *   may be used to endorse or promote products derived from this software 
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * @file os_port.h
+ *
+ * Some stuff to minimise the differences between windows and linux/unix
+ */
+
+#ifndef HEADER_OS_PORT_H
+#define HEADER_OS_PORT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+//#include "../crypto/os_int.h"
+#include "c_types.h"
+#include "osapi.h"
+#include <stdio.h>
+
+#if 0
+#define ssl_printf(fmt, args...) os_printf(fmt,## args)
+#else
+#define ssl_printf(fmt, args...)
+#endif
+
+#define STDCALL
+#define EXP_FUNC
+
+struct timeval {
+  long    tv_sec;         /* seconds */
+  long    tv_usec;        /* and microseconds */
+};
+
+/* Mutexing definitions */
+
+#define SSL_CTX_MUTEX_INIT(A)
+#define SSL_CTX_MUTEX_DESTROY(A)
+#define SSL_CTX_LOCK(A)
+#define SSL_CTX_UNLOCK(A)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif 

app/include/ssl/ssl_private_key.h

@@ -0,0 +1,54 @@
+unsigned char default_private_key[] = {
+  0x30, 0x82, 0x02, 0x5d, 0x02, 0x01, 0x00, 0x02, 0x81, 0x81, 0x00, 0xcd,
+  0xfd, 0x89, 0x48, 0xbe, 0x36, 0xb9, 0x95, 0x76, 0xd4, 0x13, 0x30, 0x0e,
+  0xbf, 0xb2, 0xed, 0x67, 0x0a, 0xc0, 0x16, 0x3f, 0x51, 0x09, 0x9d, 0x29,
+  0x2f, 0xb2, 0x6d, 0x3f, 0x3e, 0x6c, 0x2f, 0x90, 0x80, 0xa1, 0x71, 0xdf,
+  0xbe, 0x38, 0xc5, 0xcb, 0xa9, 0x9a, 0x40, 0x14, 0x90, 0x0a, 0xf9, 0xb7,
+  0x07, 0x0b, 0xe1, 0xda, 0xe7, 0x09, 0xbf, 0x0d, 0x57, 0x41, 0x86, 0x60,
+  0xa1, 0xc1, 0x27, 0x91, 0x5b, 0x0a, 0x98, 0x46, 0x1b, 0xf6, 0xa2, 0x84,
+  0xf8, 0x65, 0xc7, 0xce, 0x2d, 0x96, 0x17, 0xaa, 0x91, 0xf8, 0x61, 0x04,
+  0x50, 0x70, 0xeb, 0xb4, 0x43, 0xb7, 0xdc, 0x9a, 0xcc, 0x31, 0x01, 0x14,
+  0xd4, 0xcd, 0xcc, 0xc2, 0x37, 0x6d, 0x69, 0x82, 0xd6, 0xc6, 0xc4, 0xbe,
+  0xf2, 0x34, 0xa5, 0xc9, 0xa6, 0x19, 0x53, 0x32, 0x7a, 0x86, 0x0e, 0x91,
+  0x82, 0x0f, 0xa1, 0x42, 0x54, 0xaa, 0x01, 0x02, 0x03, 0x01, 0x00, 0x01,
+  0x02, 0x81, 0x81, 0x00, 0x95, 0xaa, 0x6e, 0x11, 0xf5, 0x6a, 0x8b, 0xa2,
+  0xc6, 0x48, 0xc6, 0x7c, 0x37, 0x6b, 0x1f, 0x55, 0x10, 0x76, 0x26, 0x24,
+  0xc3, 0xf2, 0x5c, 0x5a, 0xdd, 0x2e, 0xf3, 0xa4, 0x1e, 0xbc, 0x7b, 0x1c,
+  0x80, 0x10, 0x85, 0xbc, 0xd8, 0x45, 0x3c, 0xb8, 0xb2, 0x06, 0x53, 0xb5,
+  0xd5, 0x7a, 0xe7, 0x0e, 0x92, 0xe6, 0x42, 0xc2, 0xe2, 0x2a, 0xd5, 0xd1,
+  0x03, 0x9f, 0x6f, 0x53, 0x74, 0x68, 0x72, 0x8e, 0xbf, 0x03, 0xbb, 0xab,
+  0xbd, 0xa1, 0xf9, 0x81, 0x7d, 0x12, 0xd4, 0x9d, 0xb6, 0xae, 0x4c, 0xad,
+  0xca, 0xa8, 0xc9, 0x80, 0x8d, 0x0d, 0xd5, 0xd0, 0xa1, 0xbf, 0xec, 0x60,
+  0x48, 0x49, 0xed, 0x97, 0x0f, 0x5e, 0xed, 0xfc, 0x39, 0x15, 0x96, 0x9e,
+  0x5d, 0xe2, 0xb4, 0x5d, 0x2e, 0x04, 0xdc, 0x08, 0xa2, 0x65, 0x29, 0x2d,
+  0x37, 0xfb, 0x62, 0x90, 0x1b, 0x7b, 0xe5, 0x3a, 0x58, 0x05, 0x55, 0xc1,
+  0x02, 0x41, 0x00, 0xfc, 0x69, 0x28, 0xc9, 0xa8, 0xc4, 0x5c, 0xe3, 0xd0,
+  0x5e, 0xaa, 0xda, 0xde, 0x87, 0x74, 0xdb, 0xcb, 0x40, 0x78, 0x8e, 0x1d,
+  0x12, 0x96, 0x16, 0x61, 0x3f, 0xb3, 0x3e, 0xa3, 0x0d, 0xdc, 0x49, 0xa5,
+  0x25, 0x87, 0xc5, 0x97, 0x85, 0x9d, 0xbb, 0xb4, 0xf0, 0x44, 0xfd, 0x6c,
+  0xe8, 0xd2, 0x8c, 0xec, 0x33, 0x81, 0x46, 0x1e, 0x10, 0x12, 0x33, 0x16,
+  0x95, 0x00, 0x4f, 0x75, 0xb4, 0xe5, 0x79, 0x02, 0x41, 0x00, 0xd0, 0xeb,
+  0x65, 0x07, 0x10, 0x3b, 0xd9, 0x03, 0xeb, 0xdc, 0x6f, 0x4b, 0x8f, 0xc3,
+  0x87, 0xce, 0x76, 0xd6, 0xc5, 0x14, 0x21, 0x4e, 0xe7, 0x4f, 0x1b, 0xe8,
+  0x05, 0xf8, 0x84, 0x1a, 0xe0, 0xc5, 0xd6, 0xe3, 0x08, 0xb3, 0x54, 0x57,
+  0x02, 0x1f, 0xd4, 0xd9, 0xfb, 0xff, 0x40, 0xb1, 0x56, 0x1c, 0x60, 0xf7,
+  0xac, 0x91, 0xf3, 0xd3, 0xc6, 0x7f, 0x84, 0xfd, 0x84, 0x9d, 0xea, 0x26,
+  0xee, 0xc9, 0x02, 0x41, 0x00, 0xa6, 0xcf, 0x1c, 0x6c, 0x81, 0x03, 0x1c,
+  0x5c, 0x56, 0x05, 0x6a, 0x26, 0x70, 0xef, 0xd6, 0x13, 0xb7, 0x74, 0x28,
+  0xf7, 0xca, 0x50, 0xd1, 0x2d, 0x83, 0x21, 0x64, 0xe4, 0xdd, 0x3f, 0x38,
+  0xb8, 0xd6, 0xd2, 0x41, 0xb3, 0x1c, 0x9a, 0xea, 0x0d, 0xf5, 0xda, 0xdf,
+  0xcd, 0x17, 0x9f, 0x9a, 0x1e, 0x15, 0xaf, 0x48, 0x1c, 0xbd, 0x9b, 0x63,
+  0x5b, 0xad, 0xed, 0xd4, 0xa1, 0xae, 0xa9, 0x59, 0x09, 0x02, 0x40, 0x4e,
+  0x08, 0xce, 0xa8, 0x8f, 0xc0, 0xba, 0xf3, 0x83, 0x02, 0xc8, 0x33, 0x62,
+  0x14, 0x77, 0xc2, 0x7f, 0x93, 0x02, 0xf3, 0xdc, 0xe9, 0x1a, 0xee, 0xea,
+  0x8e, 0x84, 0xc4, 0x69, 0x9b, 0x9c, 0x7f, 0x69, 0x1f, 0x4e, 0x1d, 0xa5,
+  0x90, 0x06, 0x44, 0x1b, 0x7d, 0xfc, 0x69, 0x40, 0x21, 0xbc, 0xf7, 0x46,
+  0xa4, 0xdc, 0x39, 0x7b, 0xe8, 0x8b, 0x49, 0x10, 0x44, 0x9d, 0x67, 0x5a,
+  0x91, 0x86, 0x39, 0x02, 0x40, 0x41, 0x2c, 0x4e, 0xfe, 0xd9, 0x90, 0x89,
+  0x00, 0x5c, 0x94, 0x0a, 0x4a, 0x7e, 0x1b, 0x1a, 0x80, 0x06, 0x01, 0x37,
+  0xda, 0x50, 0x61, 0x9d, 0x9c, 0xfe, 0x25, 0x7f, 0xd8, 0xd4, 0xc4, 0x9e,
+  0x81, 0xf2, 0x0c, 0x1e, 0x38, 0x21, 0x1e, 0x90, 0x3f, 0xd4, 0xba, 0x6c,
+  0x53, 0xcb, 0xf0, 0x77, 0x79, 0x9b, 0xf1, 0xfa, 0x3f, 0x81, 0xdc, 0xf3,
+  0x21, 0x02, 0x6d, 0xb7, 0x95, 0xc3, 0x2e, 0xce, 0xd5
+};
+unsigned int default_private_key_len = 609;

app/include/ssl/ssl_ssl.h

@@ -0,0 +1,503 @@
+/*
+ * Copyright (c) 2007, Cameron Rich
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, 
+ *   this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, 
+ *   this list of conditions and the following disclaimer in the documentation 
+ *   and/or other materials provided with the distribution.
+ * * Neither the name of the axTLS project nor the names of its contributors 
+ *   may be used to endorse or promote products derived from this software 
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * @mainpage axTLS API
+ *
+ * @image html axolotl.jpg
+ *
+ * The axTLS library has features such as:
+ * - The TLSv1 SSL client/server protocol
+ * - No requirement to use any openssl libraries.
+ * - A choice between AES block (128/256 bit) and RC4 (128 bit) stream ciphers.
+ * - RSA encryption/decryption with variable sized keys (up to 4096 bits).
+ * - Certificate chaining and peer authentication.
+ * - Session resumption, session renegotiation.
+ * - ASN.1, X.509, PKCS#8, PKCS#12 keys/certificates with DER/PEM encoding.
+ * - Highly configurable compile time options.
+ * - Portable across many platforms (written in ANSI C), and has language
+ * bindings in C, C#, VB.NET, Java, Perl and Lua.
+ * - Partial openssl API compatibility (via a wrapper).
+ * - A very small footprint (around 50-60kB for the library in 'server-only' 
+ *   mode).
+ * - No dependencies on sockets - can use serial connections for example.
+ * - A very simple API - ~ 20 functions/methods.
+ *
+ * A list of these functions/methods are described below.
+ *
+ *  @ref c_api 
+ *
+ *  @ref bigint_api 
+ *
+ *  @ref csharp_api 
+ *
+ *  @ref java_api 
+ */
+#ifndef HEADER_SSL_H
+#define HEADER_SSL_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+//#include <time.h>
+typedef long     time_t;
+
+/* need to predefine before ssl_lib.h gets to it */
+#define SSL_SESSION_ID_SIZE                     32
+
+#include "ssl/ssl_tls1.h"
+
+/* The optional parameters that can be given to the client/server SSL engine */
+#define SSL_CLIENT_AUTHENTICATION               0x00010000
+#define SSL_SERVER_VERIFY_LATER                 0x00020000
+#define SSL_NO_DEFAULT_KEY                      0x00040000
+#define SSL_DISPLAY_STATES                      0x00080000
+#define SSL_DISPLAY_BYTES                       0x00100000
+#define SSL_DISPLAY_CERTS                       0x00200000
+#define SSL_DISPLAY_RSA                         0x00400000
+#define SSL_CONNECT_IN_PARTS                    0x00800000
+
+/* errors that can be generated */
+#define SSL_OK                                  0
+#define SSL_NOT_OK                              -1
+#define SSL_ERROR_DEAD                          -2
+#define SSL_CLOSE_NOTIFY                        -3
+#define SSL_ERROR_CONN_LOST                     -256
+#define SSL_ERROR_SOCK_SETUP_FAILURE            -258
+#define SSL_ERROR_INVALID_HANDSHAKE             -260
+#define SSL_ERROR_INVALID_PROT_MSG              -261
+#define SSL_ERROR_INVALID_HMAC                  -262
+#define SSL_ERROR_INVALID_VERSION               -263
+#define SSL_ERROR_INVALID_SESSION               -265
+#define SSL_ERROR_NO_CIPHER                     -266
+#define SSL_ERROR_BAD_CERTIFICATE               -268
+#define SSL_ERROR_INVALID_KEY                   -269
+#define SSL_ERROR_FINISHED_INVALID              -271
+#define SSL_ERROR_NO_CERT_DEFINED               -272
+#define SSL_ERROR_NO_CLIENT_RENOG               -273
+#define SSL_ERROR_NOT_SUPPORTED                 -274
+#define SSL_X509_OFFSET                         -512
+#define SSL_X509_ERROR(A)                       (SSL_X509_OFFSET+A)
+
+/* alert types that are recognized */
+#define SSL_ALERT_TYPE_WARNING                  1
+#define SLL_ALERT_TYPE_FATAL                    2
+
+/* these are all the alerts that are recognized */
+#define SSL_ALERT_CLOSE_NOTIFY                  0
+#define SSL_ALERT_UNEXPECTED_MESSAGE            10
+#define SSL_ALERT_BAD_RECORD_MAC                20
+#define SSL_ALERT_HANDSHAKE_FAILURE             40
+#define SSL_ALERT_BAD_CERTIFICATE               42
+#define SSL_ALERT_ILLEGAL_PARAMETER             47
+#define SSL_ALERT_DECODE_ERROR                  50
+#define SSL_ALERT_DECRYPT_ERROR                 51
+#define SSL_ALERT_INVALID_VERSION               70
+#define SSL_ALERT_NO_RENEGOTIATION              100
+
+/* The ciphers that are supported */
+#define SSL_AES128_SHA                          0x2f
+#define SSL_AES256_SHA                          0x35
+#define SSL_RC4_128_SHA                         0x05
+#define SSL_RC4_128_MD5                         0x04
+
+/* build mode ids' */
+#define SSL_BUILD_SKELETON_MODE                 0x01
+#define SSL_BUILD_SERVER_ONLY                   0x02
+#define SSL_BUILD_ENABLE_VERIFICATION           0x03
+#define SSL_BUILD_ENABLE_CLIENT                 0x04
+#define SSL_BUILD_FULL_MODE                     0x05
+
+/* offsets to retrieve configuration information */
+#define SSL_BUILD_MODE                          0
+#define SSL_MAX_CERT_CFG_OFFSET                 1
+#define SSL_MAX_CA_CERT_CFG_OFFSET              2
+#define SSL_HAS_PEM                             3
+
+/* default session sizes */
+#define SSL_DEFAULT_SVR_SESS                    1	//modify 5->1 by lhan
+#define SSL_DEFAULT_CLNT_SESS                   1
+
+/* X.509/X.520 distinguished name types */
+#define SSL_X509_CERT_COMMON_NAME               0
+#define SSL_X509_CERT_ORGANIZATION              1
+#define SSL_X509_CERT_ORGANIZATIONAL_NAME       2
+#define SSL_X509_CA_CERT_COMMON_NAME            3
+#define SSL_X509_CA_CERT_ORGANIZATION           4
+#define SSL_X509_CA_CERT_ORGANIZATIONAL_NAME    5
+
+/* SSL object loader types */
+#define SSL_OBJ_X509_CERT                       1
+#define SSL_OBJ_X509_CACERT                     2
+#define SSL_OBJ_RSA_KEY                         3
+#define SSL_OBJ_PKCS8                           4
+#define SSL_OBJ_PKCS12                          5
+
+/**
+ * @defgroup c_api Standard C API
+ * @brief The standard interface in C.
+ * @{
+ */
+
+/**
+ * @brief Establish a new client/server context.
+ *
+ * This function is called before any client/server SSL connections are made. 
+ *
+ * Each new connection will use the this context's private key and 
+ * certificate chain. If a different certificate chain is required, then a 
+ * different context needs to be be used.
+ *
+ * There are two threading models supported - a single thread with one
+ * SSL_CTX can support any number of SSL connections - and multiple threads can 
+ * support one SSL_CTX object each (the default). But if a single SSL_CTX 
+ * object uses many SSL objects in individual threads, then the 
+ * CONFIG_SSL_CTX_MUTEXING option needs to be configured.
+ *
+ * @param options [in]  Any particular options. At present the options
+ * supported are:
+ * - SSL_SERVER_VERIFY_LATER (client only): Don't stop a handshake if the server
+ * authentication fails. The certificate can be authenticated later with a
+ * call to ssl_verify_cert().
+ * - SSL_CLIENT_AUTHENTICATION (server only): Enforce client authentication
+ * i.e. each handshake will include a "certificate request" message from the
+ * server. Only available if verification has been enabled.
+ * - SSL_DISPLAY_BYTES (full mode build only): Display the byte sequences
+ * during the handshake.
+ * - SSL_DISPLAY_STATES (full mode build only): Display the state changes
+ * during the handshake.
+ * - SSL_DISPLAY_CERTS (full mode build only): Display the certificates that
+ * are passed during a handshake.
+ * - SSL_DISPLAY_RSA (full mode build only): Display the RSA key details that
+ * are passed during a handshake.
+ * - SSL_CONNECT_IN_PARTS (client only): To use a non-blocking version of 
+ * ssl_client_new().
+ * @param num_sessions [in] The number of sessions to be used for session
+ * caching. If this value is 0, then there is no session caching. This option
+ * is not used in skeleton mode.
+ * @return A client/server context.
+ */
+EXP_FUNC SSL_CTX * STDCALL ssl_ctx_new(uint32_t options, int num_sessions);
+
+/**
+ * @brief Remove a client/server context.
+ *
+ * Frees any used resources used by this context. Each connection will be 
+ * sent a "Close Notify" alert (if possible).
+ * @param ssl_ctx [in] The client/server context.
+ */
+EXP_FUNC void STDCALL ssl_ctx_free(SSL_CTX *ssl_ctx);
+
+/**
+ * @brief (server only) Establish a new SSL connection to an SSL client.
+ *
+ * It is up to the application to establish the logical connection (whether it
+ * is  a socket, serial connection etc).
+ * @param ssl_ctx [in] The server context.
+ * @param client_fd [in] The client's file descriptor. 
+ * @return An SSL object reference.
+ */
+//EXP_FUNC SSL * STDCALL ssl_server_new(SSL_CTX *ssl_ctx, int client_fd);
+
+EXP_FUNC SSL *STDCALL sslserver_new(SSL_CTX *ssl_ctx, struct tcp_pcb* client_pcb);
+/**
+ * @brief (client only) Establish a new SSL connection to an SSL server.
+ *
+ * It is up to the application to establish the initial logical connection 
+ * (whether it is  a socket, serial connection etc).
+ *
+ * This is a normally a blocking call - it will finish when the handshake is 
+ * complete (or has failed). To use in non-blocking mode, set 
+ * SSL_CONNECT_IN_PARTS in ssl_ctx_new().
+ * @param ssl_ctx [in] The client context.
+ * @param client_fd [in] The client's file descriptor.
+ * @param session_id [in] A 32 byte session id for session resumption. This 
+ * can be null if no session resumption is being used or required. This option
+ * is not used in skeleton mode.
+ * @param sess_id_size The size of the session id (max 32)
+ * @return An SSL object reference. Use ssl_handshake_status() to check 
+ * if a handshake succeeded.
+ */
+//EXP_FUNC SSL * STDCALL ssl_client_new(SSL_CTX *ssl_ctx, int client_fd, const uint8_t *session_id, uint8_t sess_id_size);
+
+EXP_FUNC SSL *STDCALL SSLClient_new(SSL_CTX *ssl_ctx, struct tcp_pcb *SslClient_pcb, const
+                                        uint8_t *session_id, uint8_t sess_id_size);
+/**
+ * @brief Free any used resources on this connection. 
+ 
+ * A "Close Notify" message is sent on this connection (if possible). It is up 
+ * to the application to close the socket or file descriptor.
+ * @param ssl [in] The ssl object reference.
+ */
+EXP_FUNC void STDCALL ssl_free(SSL *ssl);
+
+/**
+ * @brief Read the SSL data stream.
+ * If the socket is non-blocking and data is blocked then SSO_OK will be
+ * returned.
+ * @param ssl [in] An SSL object reference.
+ * @param in_data [out] If the read was successful, a pointer to the read
+ * buffer will be here. Do NOT ever free this memory as this buffer is used in
+ * sucessive calls. If the call was unsuccessful, this value will be null.
+ * @return The number of decrypted bytes:
+ * - if > 0, then the handshaking is complete and we are returning the number 
+ *   of decrypted bytes. 
+ * - SSL_OK if the handshaking stage is successful (but not yet complete).  
+ * - < 0 if an error.
+ * @see ssl.h for the error code list.
+ * @note Use in_data before doing any successive ssl calls.
+ */
+EXP_FUNC int STDCALL ssl_read(SSL *ssl, uint8_t **in_data);
+
+/**
+ * @brief Write to the SSL data stream. 
+ * if the socket is non-blocking and data is blocked then a check is made
+ * to ensure that all data is sent (i.e. blocked mode is forced).
+ * @param ssl [in] An SSL obect reference.
+ * @param out_data [in] The data to be written
+ * @param out_len [in] The number of bytes to be written.
+ * @return The number of bytes sent, or if < 0 if an error.
+ * @see ssl.h for the error code list.
+ */
+EXP_FUNC int STDCALL ssl_write(SSL *ssl, const uint8_t *out_data, int out_len);
+
+/**
+ * @brief Find an ssl object based on a file descriptor.
+ *
+ * Goes through the list of SSL objects maintained in a client/server context
+ * to look for a file descriptor match.
+ * @param ssl_ctx [in] The client/server context.
+ * @param client_fd [in]  The file descriptor.
+ * @return A reference to the SSL object. Returns null if the object could not 
+ * be found.
+ */
+EXP_FUNC SSL * STDCALL ssl_find(SSL_CTX *ssl_ctx, int client_fd);
+
+/**
+ * @brief Get the session id for a handshake. 
+ * 
+ * This will be a 32 byte sequence and is available after the first
+ * handshaking messages are sent.
+ * @param ssl [in] An SSL object reference.
+ * @return The session id as a 32 byte sequence.
+ * @note A SSLv23 handshake may have only 16 valid bytes.
+ */
+EXP_FUNC const uint8_t * STDCALL ssl_get_session_id(const SSL *ssl);
+
+/**
+ * @brief Get the session id size for a handshake. 
+ * 
+ * This will normally be 32 but could be 0 (no session id) or something else.
+ * @param ssl [in] An SSL object reference.
+ * @return The size of the session id.
+ */
+EXP_FUNC uint8_t STDCALL ssl_get_session_id_size(const SSL *ssl);
+
+/**
+ * @brief Return the cipher id (in the SSL form).
+ * @param ssl [in] An SSL object reference.
+ * @return The cipher id. This will be one of the following:
+ * - SSL_AES128_SHA (0x2f)
+ * - SSL_AES256_SHA (0x35)
+ * - SSL_RC4_128_SHA (0x05)
+ * - SSL_RC4_128_MD5 (0x04)
+ */
+EXP_FUNC uint8_t STDCALL ssl_get_cipher_id(const SSL *ssl);
+
+/**
+ * @brief Return the status of the handshake.
+ * @param ssl [in] An SSL object reference.
+ * @return SSL_OK if the handshake is complete and ok. 
+ * @see ssl.h for the error code list.
+ */
+EXP_FUNC int STDCALL ssl_handshake_status(const SSL *ssl);
+
+/**
+ * @brief Retrieve various parameters about the axTLS engine.
+ * @param offset [in] The configuration offset. It will be one of the following:
+ * - SSL_BUILD_MODE The build mode. This will be one of the following:
+ *   - SSL_BUILD_SERVER_ONLY            (basic server mode)
+ *   - SSL_BUILD_ENABLE_VERIFICATION    (server can do client authentication)
+ *   - SSL_BUILD_ENABLE_CLIENT          (client/server capabilties)
+ *   - SSL_BUILD_FULL_MODE              (client/server with diagnostics)
+ *   - SSL_BUILD_SKELETON_MODE          (skeleton mode)
+ * - SSL_MAX_CERT_CFG_OFFSET The maximum number of certificates allowed.
+ * - SSL_MAX_CA_CERT_CFG_OFFSET The maximum number of CA certificates allowed.
+ * - SSL_HAS_PEM                        1 if supported
+ * @return The value of the requested parameter.
+ */
+EXP_FUNC int STDCALL ssl_get_config(int offset);
+
+/**
+ * @brief Display why the handshake failed.
+ *
+ * This call is only useful in a 'full mode' build. The output is to stdout.
+ * @param error_code [in] An error code.
+ * @see ssl.h for the error code list.
+ */
+//EXP_FUNC void STDCALL ssl_display_error(int error_code);
+
+/**
+ * @brief Authenticate a received certificate.
+ * 
+ * This call is usually made by a client after a handshake is complete and the
+ * context is in SSL_SERVER_VERIFY_LATER mode.
+ * @param ssl [in] An SSL object reference.
+ * @return SSL_OK if the certificate is verified.
+ */
+EXP_FUNC int STDCALL ssl_verify_cert(const SSL *ssl);
+
+/**
+ * @brief Retrieve an X.509 distinguished name component.
+ * 
+ * When a handshake is complete and a certificate has been exchanged, then the
+ * details of the remote certificate can be retrieved.
+ *
+ * This will usually be used by a client to check that the server's common 
+ * name matches the URL.
+ *
+ * @param ssl [in] An SSL object reference.
+ * @param component [in] one of:
+ * - SSL_X509_CERT_COMMON_NAME
+ * - SSL_X509_CERT_ORGANIZATION
+ * - SSL_X509_CERT_ORGANIZATIONAL_NAME
+ * - SSL_X509_CA_CERT_COMMON_NAME
+ * - SSL_X509_CA_CERT_ORGANIZATION
+ * - SSL_X509_CA_CERT_ORGANIZATIONAL_NAME
+ * @return The appropriate string (or null if not defined)
+ * @note Verification build mode must be enabled.
+ */
+EXP_FUNC const char * STDCALL ssl_get_cert_dn(const SSL *ssl, int component);
+
+/**
+ * @brief Retrieve a Subject Alternative DNSName
+ *
+ * When a handshake is complete and a certificate has been exchanged, then the
+ * details of the remote certificate can be retrieved.
+ *
+ * This will usually be used by a client to check that the server's DNS  
+ * name matches the URL.
+ *
+ * @param ssl [in] An SSL object reference.
+ * @param dnsindex [in] The index of the DNS name to retrieve.
+ * @return The appropriate string (or null if not defined)
+ * @note Verification build mode must be enabled.
+ */
+EXP_FUNC const char * STDCALL ssl_get_cert_subject_alt_dnsname(const SSL *ssl, int dnsindex);
+
+/**
+ * @brief Force the client to perform its handshake again.
+ *
+ * For a client this involves sending another "client hello" message.
+ * For the server is means sending a "hello request" message.
+ *
+ * This is a blocking call on the client (until the handshake completes).
+ *
+ * @param ssl [in] An SSL object reference.
+ * @return SSL_OK if renegotiation instantiation was ok
+ */
+EXP_FUNC int STDCALL ssl_renegotiate(SSL *ssl);
+
+/**
+ * @brief Process a file that is in binary DER or ASCII PEM format.
+ *
+ * These are temporary objects that are used to load private keys,
+ * certificates etc into memory.
+ * @param ssl_ctx [in] The client/server context.
+ * @param obj_type [in] The format of the file. Can be one of:
+ * - SSL_OBJ_X509_CERT (no password required)
+ * - SSL_OBJ_X509_CACERT (no password required)
+ * - SSL_OBJ_RSA_KEY (AES128/AES256 PEM encryption supported)
+ * - SSL_OBJ_PKCS8 (RC4-128 encrypted data supported)
+ * - SSL_OBJ_PKCS12 (RC4-128 encrypted data supported)
+ *
+ * PEM files are automatically detected (if supported). The object type is
+ * also detected, and so is not relevant for these types of files.
+ * @param filename [in] The location of a file in DER/PEM format.
+ * @param password [in] The password used. Can be null if not required.
+ * @return SSL_OK if all ok
+ * @note Not available in skeleton build mode.
+ */
+EXP_FUNC int STDCALL ssl_obj_load(SSL_CTX *ssl_ctx, int obj_type, const char *filename, const char *password);
+
+/**
+ * @brief Process binary data.
+ *
+ * These are temporary objects that are used to load private keys,
+ * certificates etc into memory.
+ * @param ssl_ctx [in] The client/server context.
+ * @param obj_type [in] The format of the memory data.
+ * @param data [in] The binary data to be loaded.
+ * @param len [in] The amount of data to be loaded.
+ * @param password [in] The password used. Can be null if not required.
+ * @return SSL_OK if all ok
+ * @see ssl_obj_load for more details on obj_type.
+ */
+EXP_FUNC int STDCALL ssl_obj_memory_load(SSL_CTX *ssl_ctx, int obj_type, const uint8_t *data, int len, const char *password);
+
+#ifdef CONFIG_SSL_GENERATE_X509_CERT
+/**
+ * @brief Create an X.509 certificate. 
+ * 
+ * This certificate is a self-signed v1 cert with a fixed start/stop validity 
+ * times. It is signed with an internal private key in ssl_ctx.
+ *
+ * @param ssl_ctx [in] The client/server context.
+ * @param options [in] Not used yet.
+ * @param dn [in] An array of distinguished name strings. The array is defined
+ * by:
+ * - SSL_X509_CERT_COMMON_NAME (0)
+ *      - If SSL_X509_CERT_COMMON_NAME is empty or not defined, then the 
+ *        hostname will be used.
+ * - SSL_X509_CERT_ORGANIZATION (1)
+ *      - If SSL_X509_CERT_ORGANIZATION is empty or not defined, then $USERNAME 
+ *        will be used.
+ * - SSL_X509_CERT_ORGANIZATIONAL_NAME (2)
+ *      - SSL_X509_CERT_ORGANIZATIONAL_NAME is optional.
+ * @param cert_data [out] The certificate as a sequence of bytes.
+ * @return < 0 if an error, or the size of the certificate in bytes.
+ * @note cert_data must be freed when there is no more need for it.
+ */
+EXP_FUNC int STDCALL ssl_x509_create(SSL_CTX *ssl_ctx, uint32_t options, const char * dn[], uint8_t **cert_data);
+#endif
+
+/**
+ * @brief Return the axTLS library version as a string.
+ */
+EXP_FUNC const char * STDCALL ssl_version(void);
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

app/include/ssl/ssl_tls1.h

@@ -0,0 +1,302 @@
+/*
+ * Copyright (c) 2007, Cameron Rich
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, 
+ *   this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, 
+ *   this list of conditions and the following disclaimer in the documentation 
+ *   and/or other materials provided with the distribution.
+ * * Neither the name of the axTLS project nor the names of its contributors 
+ *   may be used to endorse or promote products derived from this software 
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * @file tls1.h
+ *
+ * @brief The definitions for the TLS library.
+ */
+#ifndef HEADER_SSL_LIB_H
+#define HEADER_SSL_LIB_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "c_types.h"
+#include "ssl/ssl_version.h"
+#include "ssl/ssl_config.h"
+//#include "../crypto/os_int.h"
+#include "ssl/ssl_crypto.h"
+#include "ssl/ssl_crypto_misc.h"
+#include "lwip/tcp.h"
+
+#define SSL_PROTOCOL_MIN_VERSION    0x31   /* TLS v1.0 */
+#define SSL_PROTOCOL_MINOR_VERSION  0x02   /* TLS v1.1 */
+#define SSL_PROTOCOL_VERSION_MAX    0x32   /* TLS v1.1 */
+#define SSL_PROTOCOL_VERSION1_1     0x32   /* TLS v1.1 */
+#define SSL_RANDOM_SIZE             32
+#define SSL_SECRET_SIZE             48
+#define SSL_FINISHED_HASH_SIZE      12
+#define SSL_RECORD_SIZE             5
+#define SSL_SERVER_READ             0
+#define SSL_SERVER_WRITE            1
+#define SSL_CLIENT_READ             2
+#define SSL_CLIENT_WRITE            3
+#define SSL_HS_HDR_SIZE             4
+
+/* the flags we use while establishing a connection */
+#define SSL_NEED_RECORD             0x0001
+#define SSL_TX_ENCRYPTED            0x0002 
+#define SSL_RX_ENCRYPTED            0x0004
+#define SSL_SESSION_RESUME          0x0008
+#define SSL_IS_CLIENT               0x0010
+#define SSL_HAS_CERT_REQ            0x0020
+#define SSL_SENT_CLOSE_NOTIFY       0x0040
+
+/* some macros to muck around with flag bits */
+#define SET_SSL_FLAG(A)             (ssl->flag |= A)
+#define CLR_SSL_FLAG(A)             (ssl->flag &= ~A)
+#define IS_SET_SSL_FLAG(A)          (ssl->flag & A)
+
+#define MAX_KEY_BYTE_SIZE           512     /* for a 4096 bit key */
+#define RT_MAX_PLAIN_LENGTH         4096
+#define RT_EXTRA                    1024
+#define BM_RECORD_OFFSET            5
+
+#ifdef CONFIG_SSL_SKELETON_MODE
+#define NUM_PROTOCOLS               1
+#else
+#define NUM_PROTOCOLS               4
+#endif
+
+#define PARANOIA_CHECK(A, B)        if (A < B) { \
+    ret = SSL_ERROR_INVALID_HANDSHAKE; goto error; }
+
+/* protocol types */
+enum
+{
+    PT_CHANGE_CIPHER_SPEC = 20,
+    PT_ALERT_PROTOCOL,
+    PT_HANDSHAKE_PROTOCOL,
+    PT_APP_PROTOCOL_DATA
+};
+
+/* handshaking types */
+enum
+{
+    HS_HELLO_REQUEST,
+    HS_CLIENT_HELLO,
+    HS_SERVER_HELLO,
+    HS_CERTIFICATE = 11,
+    HS_SERVER_KEY_XCHG,
+    HS_CERT_REQ,
+    HS_SERVER_HELLO_DONE,
+    HS_CERT_VERIFY,
+    HS_CLIENT_KEY_XCHG,
+    HS_FINISHED = 20
+};
+
+typedef struct 
+{
+    uint8_t cipher;
+    uint8_t key_size;
+    uint8_t iv_size;
+    uint8_t key_block_size;
+    uint8_t padding_size;
+    uint8_t digest_size;
+    hmac_func hmac;
+    crypt_func encrypt;
+    crypt_func decrypt;
+} cipher_info_t;
+
+struct _SSLObjLoader 
+{
+    uint8_t *buf;
+    int len;
+};
+
+typedef struct _SSLObjLoader SSLObjLoader;
+
+typedef struct 
+{
+    time_t conn_time;
+    uint8_t session_id[SSL_SESSION_ID_SIZE];
+    uint8_t master_secret[SSL_SECRET_SIZE];
+} SSL_SESSION;
+
+typedef struct
+{
+    uint8_t *buf;
+    int size;
+} SSL_CERT;
+
+typedef struct
+{
+    MD5_CTX md5_ctx;
+    SHA1_CTX sha1_ctx;
+    uint8_t final_finish_mac[SSL_FINISHED_HASH_SIZE];
+    uint8_t *key_block;
+    uint8_t master_secret[SSL_SECRET_SIZE];
+    uint8_t client_random[SSL_RANDOM_SIZE]; /* client's random sequence */
+    uint8_t server_random[SSL_RANDOM_SIZE]; /* server's random sequence */
+    uint16_t bm_proc_index;
+} DISPOSABLE_CTX;
+
+struct _SSL
+{
+    uint32_t flag;
+    uint16_t need_bytes;
+    uint16_t got_bytes;
+    uint8_t record_type;
+    uint8_t cipher;
+    uint8_t sess_id_size;
+    uint8_t version;
+    uint8_t client_version;
+    sint16_t next_state;
+    sint16_t hs_status;
+    DISPOSABLE_CTX *dc;         /* temporary data which we'll get rid of soon */
+    //int client_fd;
+	struct tcp_pcb *SslClient_pcb;//add by ives 12.12.2013
+    struct pbuf *ssl_pbuf;//add by ives 12.12.2013
+    const cipher_info_t *cipher_info;
+    void *encrypt_ctx;
+    void *decrypt_ctx;
+    uint8_t bm_all_data[RT_MAX_PLAIN_LENGTH+RT_EXTRA];
+    uint8_t *bm_data;
+    uint16_t bm_index;
+    uint16_t bm_read_index;
+    struct _SSL *next;                  /* doubly linked list */
+    struct _SSL *prev;
+    struct _SSL_CTX *ssl_ctx;           /* back reference to a clnt/svr ctx */
+#ifndef CONFIG_SSL_SKELETON_MODE
+    uint16_t session_index;
+    SSL_SESSION *session;
+#endif
+#ifdef CONFIG_SSL_CERT_VERIFICATION
+    X509_CTX *x509_ctx;
+#endif
+
+    uint8_t session_id[SSL_SESSION_ID_SIZE]; 
+    uint8_t client_mac[SHA1_SIZE];  /* for HMAC verification */
+    uint8_t server_mac[SHA1_SIZE];  /* for HMAC verification */
+    uint8_t read_sequence[8];       /* 64 bit sequence number */
+    uint8_t write_sequence[8];      /* 64 bit sequence number */
+    uint8_t hmac_header[SSL_RECORD_SIZE];    /* rx hmac */
+};
+
+typedef struct _SSL SSL;
+
+struct _SSL_CTX
+{
+    uint32_t options;
+    uint8_t chain_length;
+    RSA_CTX *rsa_ctx;
+#ifdef CONFIG_SSL_CERT_VERIFICATION
+    CA_CERT_CTX *ca_cert_ctx;
+#endif
+    SSL *head;
+    SSL *tail;
+    SSL_CERT certs[CONFIG_SSL_MAX_CERTS];
+#ifndef CONFIG_SSL_SKELETON_MODE
+    uint16_t num_sessions;
+    SSL_SESSION **ssl_sessions;
+#endif
+#ifdef CONFIG_SSL_CTX_MUTEXING
+    SSL_CTX_MUTEX_TYPE mutex;
+#endif
+#ifdef CONFIG_OPENSSL_COMPATIBLE
+    void *bonus_attr;
+#endif
+};
+
+typedef struct _SSL_CTX SSL_CTX;
+
+/* backwards compatibility */
+typedef struct _SSL_CTX SSLCTX;
+
+extern const uint8_t ssl_prot_prefs[NUM_PROTOCOLS];
+
+SSL *ssl_new(SSL_CTX *ssl_ctx, int client_fd);
+SSL *ssl_new_context(SSL_CTX *ssl_ctx, struct tcp_pcb *SslClient_pcb);
+void disposable_new(SSL *ssl);
+void disposable_free(SSL *ssl);
+int send_packet(SSL *ssl, uint8_t protocol, 
+        const uint8_t *in, int length);
+int do_svr_handshake(SSL *ssl, int handshake_type, uint8_t *buf, int hs_len);
+int do_clnt_handshake(SSL *ssl, int handshake_type, uint8_t *buf, int hs_len);
+int process_finished(SSL *ssl, uint8_t *buf, int hs_len);
+int process_sslv23_client_hello(SSL *ssl);
+int send_alert(SSL *ssl, int error_code);
+int send_finished(SSL *ssl);
+int send_certificate(SSL *ssl);
+int basic_read(SSL *ssl, uint8_t **in_data);
+int send_change_cipher_spec(SSL *ssl);
+void finished_digest(SSL *ssl, const char *label, uint8_t *digest);
+void generate_master_secret(SSL *ssl, const uint8_t *premaster_secret);
+void add_packet(SSL *ssl, const uint8_t *pkt, int len);
+int add_cert(SSL_CTX *ssl_ctx, const uint8_t *buf, int len);
+int add_private_key(SSL_CTX *ssl_ctx, SSLObjLoader *ssl_obj);
+void ssl_obj_free(SSLObjLoader *ssl_obj);
+int pkcs8_decode(SSL_CTX *ssl_ctx, SSLObjLoader *ssl_obj, const char *password);
+int pkcs12_decode(SSL_CTX *ssl_ctx, SSLObjLoader *ssl_obj, const char *password);
+int load_key_certs(SSL_CTX *ssl_ctx);
+#ifdef CONFIG_SSL_CERT_VERIFICATION
+int add_cert_auth(SSL_CTX *ssl_ctx, const uint8_t *buf, int len);
+void remove_ca_certs(CA_CERT_CTX *ca_cert_ctx);
+#endif
+#ifdef CONFIG_SSL_ENABLE_CLIENT
+int do_client_connect(SSL *ssl);
+#endif
+
+#ifdef CONFIG_SSL_FULL_MODE
+//void DISPLAY_STATE(SSL *ssl, int is_send, uint8_t state, int not_ok);
+//void DISPLAY_BYTES(SSL *ssl, const char *format,
+//        const uint8_t *data, int size, ...);
+//void DISPLAY_CERT(SSL *ssl, const X509_CTX *x509_ctx);
+//void DISPLAY_RSA(SSL *ssl,  const RSA_CTX *rsa_ctx);
+//void DISPLAY_ALERT(SSL *ssl, int alert);
+#else
+#define DISPLAY_STATE(A,B,C,D)
+#define DISPLAY_CERT(A,B)
+#define DISPLAY_RSA(A,B)
+#define DISPLAY_ALERT(A, B)
+#ifdef WIN32
+void DISPLAY_BYTES(SSL *ssl, const char *format,/* win32 has no variadic macros */
+        const uint8_t *data, int size, ...);
+#else
+#define DISPLAY_BYTES(A,B,C,D,...)
+#endif
+#endif
+
+#ifdef CONFIG_SSL_CERT_VERIFICATION
+int process_certificate(SSL *ssl, X509_CTX **x509_ctx);
+#endif
+
+SSL_SESSION *ssl_session_update(int max_sessions, 
+        SSL_SESSION *ssl_sessions[], SSL *ssl,
+        const uint8_t *session_id);
+void kill_ssl_session(SSL_SESSION **ssl_sessions, SSL *ssl);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif 

app/include/ssl/ssl_version.h

@@ -0,0 +1 @@
+#define AXTLS_VERSION    "1.4.9"

app/include/user_config.h

@@ -0,0 +1,71 @@
+#ifndef __USER_CONFIG_H__
+#define __USER_CONFIG_H__
+
+#define NODE_VERSION	"NodeMcu 0.9.4"
+#define BUILD_DATE	"build 20141222"
+#define FLASH_512K
+// #define FLASH_1M
+// #define FLASH_2M
+// #define FLASH_4M
+// #define DEVELOP_VERSION
+#define FULL_VERSION_FOR_USER
+
+#ifdef DEVELOP_VERSION
+#define NODE_DEBUG
+#endif	/* DEVELOP_VERSION */
+
+#define NODE_ERROR
+
+#ifdef NODE_DEBUG
+#define NODE_DBG c_printf
+#else
+#define NODE_DBG
+#endif	/* NODE_DEBUG */
+
+#ifdef NODE_ERROR
+#define NODE_ERR c_printf
+#else
+#define NODE_ERR
+#endif	/* NODE_ERROR */
+
+#define CLIENT_SSL_ENABLE
+#define GPIO_INTERRUPT_ENABLE
+
+// #define BUILD_WOFS		1
+#define BUILD_SPIFFS	1
+
+#define LUA_USE_MODULES
+#ifdef LUA_USE_MODULES
+#define LUA_USE_MODULES_NODE
+#define LUA_USE_MODULES_FILE
+#define LUA_USE_MODULES_GPIO
+#define LUA_USE_MODULES_WIFI
+#define LUA_USE_MODULES_NET
+#define LUA_USE_MODULES_PWM
+#define LUA_USE_MODULES_I2C
+#define LUA_USE_MODULES_TMR
+#define LUA_USE_MODULES_ADC
+#define LUA_USE_MODULES_UART
+#define LUA_USE_MODULES_OW
+#define LUA_USE_MODULES_BIT
+#endif /* LUA_USE_MODULES */
+
+#define LUA_NUMBER_INTEGRAL
+
+#define LUA_OPTRAM
+#ifdef LUA_OPTRAM
+#define LUA_OPTIMIZE_MEMORY			2
+#else
+#define LUA_OPTIMIZE_MEMORY         0
+#endif	/* LUA_OPTRAM */
+
+#define READLINE_INTERVAL	80
+#define KEY_SHORT_MS	200
+#define KEY_LONG_MS		3000
+#define KEY_SHORT_COUNT (KEY_SHORT_MS / READLINE_INTERVAL)
+#define KEY_LONG_COUNT (KEY_LONG_MS / READLINE_INTERVAL)
+
+#define LED_HIGH_COUNT_DEFAULT 10
+#define LED_LOW_COUNT_DEFAULT 0
+
+#endif	/* __USER_CONFIG_H__ */

app/json/Makefile

@@ -0,0 +1,46 @@
+
+#############################################################
+# Required variables for each makefile
+# Discard this section from all parent makefiles
+# Expected variables (with automatic defaults):
+#   CSRCS (all "C" files in the dir)
+#   SUBDIRS (all subdirs with a Makefile)
+#   GEN_LIBS - list of libs to be generated ()
+#   GEN_IMAGES - list of images to be generated ()
+#   COMPONENTS_xxx - a list of libs/objs in the form
+#     subdir/lib to be extracted and rolled up into
+#     a generated lib/image xxx.a ()
+#
+ifndef PDIR
+
+GEN_LIBS = libjson.a
+
+endif
+
+
+#############################################################
+# Configuration i.e. compile options etc.
+# Target specific stuff (defines etc.) goes in here!
+# Generally values applying to a tree are captured in the
+#   makefile at its root level - these are then overridden
+#   for a subtree within the makefile rooted therein
+#
+#DEFINES += 
+
+#############################################################
+# Recursion Magic - Don't touch this!!
+#
+# Each subtree potentially has an include directory
+#   corresponding to the common APIs applicable to modules
+#   rooted at that subtree. Accordingly, the INCLUDE PATH
+#   of a module can only contain the include directories up
+#   its parent path, and not its siblings
+#
+# Required for each makefile to inherit from the parent
+#
+
+INCLUDES := $(INCLUDES) -I $(PDIR)include
+INCLUDES += -I ./
+PDIR := ../$(PDIR)
+sinclude $(PDIR)Makefile
+