tools/testing/selftests/net/setup_veth.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 readonly server_ns=$(mktemp -u server-XXXXXXXX)
   5 readonly client_ns=$(mktemp -u client-XXXXXXXX)
   6
   7 setup_veth_ns() {
   8         local -r link_dev="$1"
   9         local -r ns_name="$2"
  10         local -r ns_dev="$3"
  11         local -r ns_mac="$4"
  12
  13         [[ -e /var/run/netns/"${ns_name}" ]] || ip netns add "${ns_name}"
  14         echo 1000000 > "/sys/class/net/${ns_dev}/gro_flush_timeout"
  15         ip link set dev "${ns_dev}" netns "${ns_name}" mtu 65535
  16         ip -netns "${ns_name}" link set dev "${ns_dev}" up
  17
  18         ip netns exec "${ns_name}" ethtool -K "${ns_dev}" gro on tso off
  19 }
  20
  21 setup_ns() {
  22         # Set up server_ns namespace and client_ns namespace
  23         ip link add name server type veth peer name client
  24
  25         setup_veth_ns "${dev}" ${server_ns} server "${SERVER_MAC}"
  26         setup_veth_ns "${dev}" ${client_ns} client "${CLIENT_MAC}"
  27 }
  28
  29 cleanup_ns() {
  30         local ns_name
  31
  32         for ns_name in ${client_ns} ${server_ns}; do
  33                 [[ -e /var/run/netns/"${ns_name}" ]] && ip netns del "${ns_name}"
  34         done
  35 }
  36
  37 setup() {
  38         # no global init setup step needed
  39         :
  40 }
  41
  42 cleanup() {
  43         cleanup_ns
  44 }