diff --git a/package/mqtt/platform_net_socket.c b/package/mqtt/platform_net_socket.c
index 85aee6afd..327aa7ed4 100644
--- a/package/mqtt/platform_net_socket.c
+++ b/package/mqtt/platform_net_socket.c
@@ -108,20 +108,34 @@ int platform_net_socket_close(int fd) {
     return __platform_close(fd);
 }
 
-int platform_net_socket_set_block(int fd) {
+PIKA_WEAK int platform_net_socket_set_block(int fd) {
+#ifdef __linux
     return __platform_fcntl(
         fd, F_SETFL, __platform_fcntl(fd, F_GETFL, F_GETFL) & ~O_NONBLOCK);
+#elif PIKA_LWIP_ENABLE
+    unsigned long mode = 0;
+    return ioctlsocket(fd, FIONBIO, &mode);
+#else
+    WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
+#endif
 }
 
-int platform_net_socket_set_nonblock(int fd) {
+PIKA_WEAK int platform_net_socket_set_nonblock(int fd) {
+#ifdef __linux
     return __platform_fcntl(
         fd, F_SETFL, __platform_fcntl(fd, F_GETFL, F_GETFL) | O_NONBLOCK);
+#elif PIKA_LWIP_ENABLE
+    unsigned long mode = 1;
+    return ioctlsocket(fd, FIONBIO, &mode);
+#else
+    WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
+#endif
 }
 
-int platform_net_socket_setsockopt(int fd,
-                                   int level,
-                                   int optname,
-                                   const void* optval,
-                                   socklen_t optlen) {
+PIKA_WEAK int platform_net_socket_setsockopt(int fd,
+                                             int level,
+                                             int optname,
+                                             const void* optval,
+                                             socklen_t optlen) {
     return __platform_setsockopt(fd, level, optname, optval, optlen);
 }
diff --git a/package/socket/PikaPlatform_socket.c b/package/socket/PikaPlatform_socket.c
index 4c4145e97..af2bdc66a 100644
--- a/package/socket/PikaPlatform_socket.c
+++ b/package/socket/PikaPlatform_socket.c
@@ -5,7 +5,7 @@
 */
 
 PIKA_WEAK int __platform_socket(int __domain, int __type, int __protocol) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return socket(__domain, __type, __protocol);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -15,7 +15,7 @@ PIKA_WEAK int __platform_socket(int __domain, int __type, int __protocol) {
 PIKA_WEAK int __platform_bind(int __fd,
                               const struct sockaddr* __addr,
                               socklen_t __addr_len) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return bind(__fd, __addr, __addr_len);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -23,7 +23,7 @@ PIKA_WEAK int __platform_bind(int __fd,
 }
 
 PIKA_WEAK int __platform_listen(int __fd, int __n) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return listen(__fd, __n);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -33,7 +33,7 @@ PIKA_WEAK int __platform_listen(int __fd, int __n) {
 PIKA_WEAK int __platform_accept(int __fd,
                                 struct sockaddr* __addr,
                                 socklen_t* __addr_len) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return accept(__fd, __addr, __addr_len);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -43,7 +43,7 @@ PIKA_WEAK int __platform_accept(int __fd,
 PIKA_WEAK int __platform_connect(int __fd,
                                  const struct sockaddr* __addr,
                                  socklen_t __addr_len) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return connect(__fd, __addr, __addr_len);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -54,7 +54,7 @@ PIKA_WEAK int __platform_send(int __fd,
                               const void* __buf,
                               size_t __n,
                               int __flags) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return send(__fd, __buf, __n, __flags);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -62,7 +62,7 @@ PIKA_WEAK int __platform_send(int __fd,
 }
 
 PIKA_WEAK int __platform_recv(int __fd, void* __buf, size_t __n, int __flags) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return recv(__fd, __buf, __n, __flags);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -71,7 +71,7 @@ PIKA_WEAK int __platform_recv(int __fd, void* __buf, size_t __n, int __flags) {
 
 /* gethostname */
 PIKA_WEAK int __platform_gethostname(char* __name, size_t __len) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return gethostname(__name, __len);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -82,7 +82,7 @@ PIKA_WEAK int __platform_getaddrinfo(const char* __name,
                                      const char* __service,
                                      const struct addrinfo* __req,
                                      struct addrinfo** __pai) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return getaddrinfo(__name, __service, __req, __pai);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -90,7 +90,7 @@ PIKA_WEAK int __platform_getaddrinfo(const char* __name,
 }
 
 PIKA_WEAK void __platform_freeaddrinfo(struct addrinfo* __ai) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     freeaddrinfo(__ai);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -102,7 +102,7 @@ PIKA_WEAK int __platform_setsockopt(int __fd,
                                     int __optname,
                                     const void* __optval,
                                     socklen_t __optlen) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return setsockopt(__fd, __level, __optname, __optval, __optlen);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -116,3 +116,22 @@ PIKA_WEAK int __platform_fcntl(int fd, int cmd, long arg) {
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
 #endif
 }
+
+/* os file API */
+PIKA_WEAK int __platform_close(int __fd) {
+#ifdef __linux__
+    return close(__fd);
+#elif PIKA_FREERTOS_ENABLE
+    return closesocket(__fd);
+#else
+    WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
+#endif
+}
+
+PIKA_WEAK int __platform_write(int __fd, const void* __buf, size_t __nbyte) {
+#if defined(__linux__) || PIKA_LWIP_ENABLE
+    return write(__fd, __buf, __nbyte);
+#else
+    WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
+#endif
+}
diff --git a/package/socket/PikaPlatform_socket.h b/package/socket/PikaPlatform_socket.h
index f7604bfcc..9d4d480a5 100644
--- a/package/socket/PikaPlatform_socket.h
+++ b/package/socket/PikaPlatform_socket.h
@@ -5,6 +5,12 @@
 #include <netdb.h>
 #include <sys/socket.h>
 #include <unistd.h>
+#elif PIKA_LWIP_ENABLE
+#include <lwip/sockets.h>
+#include "lwip/api.h"
+#include "lwip/netdb.h"
+#include "lwip/opt.h"
+#include "lwip/sys.h"
 #else
 /*
     You need to create the __platform_socket.h for your platform.
@@ -38,8 +44,6 @@ int __platform_setsockopt(int __fd,
                           socklen_t __optlen);
 
 /* os file API */
-int __platform_open(const char* __file, int __oflag, ...);
 int __platform_close(int fd);
-int __platform_read(int fd, void* buf, size_t count);
 int __platform_write(int fd, const void* buf, size_t count);
 int __platform_fcntl(int fd, int cmd, long arg);
diff --git a/package/socket/_socket.c b/package/socket/_socket.c
index cdc3018fb..60e238f16 100644
--- a/package/socket/_socket.c
+++ b/package/socket/_socket.c
@@ -114,41 +114,3 @@ char* _socket__gethostname(PikaObj* self) {
     __platform_gethostname(hostname_buff, 128);
     return obj_cacheStr(self, hostname);
 }
-
-/* os file API */
-
-PIKA_WEAK int __platform_close(int __fd) {
-#ifdef __linux__
-    return close(__fd);
-#else
-    WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
-#endif
-}
-
-PIKA_WEAK int __platform_open(const char* __file, int __oflag, ...) {
-#ifdef __linux__
-    va_list args;
-    va_start(args, __oflag);
-    int __mode = va_arg(args, int);
-    va_end(args);
-    return open(__file, __oflag, __mode);
-#else
-    WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
-#endif
-}
-
-PIKA_WEAK int __platform_read(int __fd, void* __buf, size_t __nbyte) {
-#ifdef __linux__
-    return read(__fd, __buf, __nbyte);
-#else
-    WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
-#endif
-}
-
-PIKA_WEAK int __platform_write(int __fd, const void* __buf, size_t __nbyte) {
-#ifdef __linux__
-    return write(__fd, __buf, __nbyte);
-#else
-    WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
-#endif
-}
diff --git a/port/linux/package/pikascript/pikascript-lib/mqtt/platform_net_socket.c b/port/linux/package/pikascript/pikascript-lib/mqtt/platform_net_socket.c
index 85aee6afd..327aa7ed4 100644
--- a/port/linux/package/pikascript/pikascript-lib/mqtt/platform_net_socket.c
+++ b/port/linux/package/pikascript/pikascript-lib/mqtt/platform_net_socket.c
@@ -108,20 +108,34 @@ int platform_net_socket_close(int fd) {
     return __platform_close(fd);
 }
 
-int platform_net_socket_set_block(int fd) {
+PIKA_WEAK int platform_net_socket_set_block(int fd) {
+#ifdef __linux
     return __platform_fcntl(
         fd, F_SETFL, __platform_fcntl(fd, F_GETFL, F_GETFL) & ~O_NONBLOCK);
+#elif PIKA_LWIP_ENABLE
+    unsigned long mode = 0;
+    return ioctlsocket(fd, FIONBIO, &mode);
+#else
+    WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
+#endif
 }
 
-int platform_net_socket_set_nonblock(int fd) {
+PIKA_WEAK int platform_net_socket_set_nonblock(int fd) {
+#ifdef __linux
     return __platform_fcntl(
         fd, F_SETFL, __platform_fcntl(fd, F_GETFL, F_GETFL) | O_NONBLOCK);
+#elif PIKA_LWIP_ENABLE
+    unsigned long mode = 1;
+    return ioctlsocket(fd, FIONBIO, &mode);
+#else
+    WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
+#endif
 }
 
-int platform_net_socket_setsockopt(int fd,
-                                   int level,
-                                   int optname,
-                                   const void* optval,
-                                   socklen_t optlen) {
+PIKA_WEAK int platform_net_socket_setsockopt(int fd,
+                                             int level,
+                                             int optname,
+                                             const void* optval,
+                                             socklen_t optlen) {
     return __platform_setsockopt(fd, level, optname, optval, optlen);
 }
diff --git a/port/linux/package/pikascript/pikascript-lib/socket/PikaPlatform_socket.c b/port/linux/package/pikascript/pikascript-lib/socket/PikaPlatform_socket.c
index 4c4145e97..af2bdc66a 100644
--- a/port/linux/package/pikascript/pikascript-lib/socket/PikaPlatform_socket.c
+++ b/port/linux/package/pikascript/pikascript-lib/socket/PikaPlatform_socket.c
@@ -5,7 +5,7 @@
 */
 
 PIKA_WEAK int __platform_socket(int __domain, int __type, int __protocol) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return socket(__domain, __type, __protocol);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -15,7 +15,7 @@ PIKA_WEAK int __platform_socket(int __domain, int __type, int __protocol) {
 PIKA_WEAK int __platform_bind(int __fd,
                               const struct sockaddr* __addr,
                               socklen_t __addr_len) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return bind(__fd, __addr, __addr_len);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -23,7 +23,7 @@ PIKA_WEAK int __platform_bind(int __fd,
 }
 
 PIKA_WEAK int __platform_listen(int __fd, int __n) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return listen(__fd, __n);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -33,7 +33,7 @@ PIKA_WEAK int __platform_listen(int __fd, int __n) {
 PIKA_WEAK int __platform_accept(int __fd,
                                 struct sockaddr* __addr,
                                 socklen_t* __addr_len) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return accept(__fd, __addr, __addr_len);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -43,7 +43,7 @@ PIKA_WEAK int __platform_accept(int __fd,
 PIKA_WEAK int __platform_connect(int __fd,
                                  const struct sockaddr* __addr,
                                  socklen_t __addr_len) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return connect(__fd, __addr, __addr_len);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -54,7 +54,7 @@ PIKA_WEAK int __platform_send(int __fd,
                               const void* __buf,
                               size_t __n,
                               int __flags) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return send(__fd, __buf, __n, __flags);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -62,7 +62,7 @@ PIKA_WEAK int __platform_send(int __fd,
 }
 
 PIKA_WEAK int __platform_recv(int __fd, void* __buf, size_t __n, int __flags) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return recv(__fd, __buf, __n, __flags);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -71,7 +71,7 @@ PIKA_WEAK int __platform_recv(int __fd, void* __buf, size_t __n, int __flags) {
 
 /* gethostname */
 PIKA_WEAK int __platform_gethostname(char* __name, size_t __len) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return gethostname(__name, __len);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -82,7 +82,7 @@ PIKA_WEAK int __platform_getaddrinfo(const char* __name,
                                      const char* __service,
                                      const struct addrinfo* __req,
                                      struct addrinfo** __pai) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return getaddrinfo(__name, __service, __req, __pai);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -90,7 +90,7 @@ PIKA_WEAK int __platform_getaddrinfo(const char* __name,
 }
 
 PIKA_WEAK void __platform_freeaddrinfo(struct addrinfo* __ai) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     freeaddrinfo(__ai);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -102,7 +102,7 @@ PIKA_WEAK int __platform_setsockopt(int __fd,
                                     int __optname,
                                     const void* __optval,
                                     socklen_t __optlen) {
-#ifdef __linux__
+#if defined(__linux__) || PIKA_LWIP_ENABLE
     return setsockopt(__fd, __level, __optname, __optval, __optlen);
 #else
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
@@ -116,3 +116,22 @@ PIKA_WEAK int __platform_fcntl(int fd, int cmd, long arg) {
     WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
 #endif
 }
+
+/* os file API */
+PIKA_WEAK int __platform_close(int __fd) {
+#ifdef __linux__
+    return close(__fd);
+#elif PIKA_FREERTOS_ENABLE
+    return closesocket(__fd);
+#else
+    WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
+#endif
+}
+
+PIKA_WEAK int __platform_write(int __fd, const void* __buf, size_t __nbyte) {
+#if defined(__linux__) || PIKA_LWIP_ENABLE
+    return write(__fd, __buf, __nbyte);
+#else
+    WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
+#endif
+}
diff --git a/port/linux/package/pikascript/pikascript-lib/socket/PikaPlatform_socket.h b/port/linux/package/pikascript/pikascript-lib/socket/PikaPlatform_socket.h
index 4c17d0554..9d4d480a5 100644
--- a/port/linux/package/pikascript/pikascript-lib/socket/PikaPlatform_socket.h
+++ b/port/linux/package/pikascript/pikascript-lib/socket/PikaPlatform_socket.h
@@ -44,8 +44,6 @@ int __platform_setsockopt(int __fd,
                           socklen_t __optlen);
 
 /* os file API */
-int __platform_open(const char* __file, int __oflag, ...);
 int __platform_close(int fd);
-int __platform_read(int fd, void* buf, size_t count);
 int __platform_write(int fd, const void* buf, size_t count);
 int __platform_fcntl(int fd, int cmd, long arg);
diff --git a/port/linux/package/pikascript/pikascript-lib/socket/_socket.c b/port/linux/package/pikascript/pikascript-lib/socket/_socket.c
index cdc3018fb..60e238f16 100644
--- a/port/linux/package/pikascript/pikascript-lib/socket/_socket.c
+++ b/port/linux/package/pikascript/pikascript-lib/socket/_socket.c
@@ -114,41 +114,3 @@ char* _socket__gethostname(PikaObj* self) {
     __platform_gethostname(hostname_buff, 128);
     return obj_cacheStr(self, hostname);
 }
-
-/* os file API */
-
-PIKA_WEAK int __platform_close(int __fd) {
-#ifdef __linux__
-    return close(__fd);
-#else
-    WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
-#endif
-}
-
-PIKA_WEAK int __platform_open(const char* __file, int __oflag, ...) {
-#ifdef __linux__
-    va_list args;
-    va_start(args, __oflag);
-    int __mode = va_arg(args, int);
-    va_end(args);
-    return open(__file, __oflag, __mode);
-#else
-    WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
-#endif
-}
-
-PIKA_WEAK int __platform_read(int __fd, void* __buf, size_t __nbyte) {
-#ifdef __linux__
-    return read(__fd, __buf, __nbyte);
-#else
-    WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
-#endif
-}
-
-PIKA_WEAK int __platform_write(int __fd, const void* __buf, size_t __nbyte) {
-#ifdef __linux__
-    return write(__fd, __buf, __nbyte);
-#else
-    WEAK_FUNCTION_NEED_OVERRIDE_ERROR();
-#endif
-}
diff --git a/src/pika_config_valid.h b/src/pika_config_valid.h
index 2ed4e113c..cc53c77db 100644
--- a/src/pika_config_valid.h
+++ b/src/pika_config_valid.h
@@ -336,6 +336,14 @@
         #define PIKA_EVENT_LIST_SIZE 16
     #endif
 
+    #ifndef PIKA_LWIP_ENABLE
+        #define PIKA_LWIP_ENABLE 0
+    #endif
+
+    #ifndef PIKA_FREERTOS_ENABLE
+        #define PIKA_FREERTOS_ENABLE 0
+    #endif
+
     /* configuration validation */
 
 #endif