tools/testing/selftests/net/in_netns.sh

   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 "$?"