mirror of
https://github.com/corundum/corundum.git
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69 lines
1.6 KiB
Bash
69 lines
1.6 KiB
Bash
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#!/bin/bash
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ns=""
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while getopts h-: option; do
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case "${option}" in
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-)
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case "${OPTARG}" in
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ns)
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val="${!OPTIND}"; OPTIND=$(( $OPTIND + 1 ))
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ns=$val
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;;
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ns=*)
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val=${OPTARG#*=}
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ns=$val
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;;
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*)
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if [ "$OPTERR" = 1 ] && [ "${optspec:0:1}" != ":" ]; then
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echo "Unknown option --${OPTARG}" >&2
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fi
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;;
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esac;;
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h)
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echo $(basename $0): usage: $(basename $0) [-h] [--ns=name] [dev] [dev]
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exit 0
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;;
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esac
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done
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shift $((OPTIND -1))
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dev=$1
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if [ -z "$ns" ]; then
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if [ -z "$dev" ]; then
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echo "Error: must specify either device or network namespace name"
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exit 1
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fi
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ns=$dev
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fi
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if [ -f "/var/run/netns/$ns" ]; then
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echo "Network namespace '$ns' already exists"
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else
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echo "Creating network namespace '$ns'"
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ip netns add $ns
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for d in "$@"
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do
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echo "Adding interface '$d' to network namespace '$ns'"
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ip link set dev $d netns $ns
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ip netns exec $ns ip link set dev $d up
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done
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fi
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if [ -f "/var/run/netns/$ns" ]; then
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echo "Starting shell in network namespace '$ns'"
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echo "Note: \$dev='$dev'"
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export dev
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ip netns exec $ns bash
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else
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echo "Error: network namespace not found"
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fi
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if [ -f "/var/run/netns/$ns" -a -z "$(ip netns pids $ns)" ]; then
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echo "Deleting network namespace '$ns'"
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ip netns del $ns
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fi
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