1 #!/bin/sh
2 # SPDX-License-Identifier: GPL-2.0
3 #
4 # Execute a subprocess in a network namespace
5
6 set -e
7
8 readonly NETNS="ns-$(mktemp -u XXXXXX)"
9
10 setup() {
11 ip netns add "${NETNS}"
12 ip -netns "${NETNS}" link set lo up
13 }
14
15 cleanup() {
16 ip netns del "${NETNS}"
17 }
18
19 trap cleanup EXIT
20 setup
21
22 ip netns exec "${NETNS}" "$@"
23 exit "$?"
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