45 lines · bash
1#!/bin/bash2# SPDX-License-Identifier: GPL-2.03 4readonly server_ns=$(mktemp -u server-XXXXXXXX)5readonly client_ns=$(mktemp -u client-XXXXXXXX)6 7setup_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 6553516 ip -netns "${ns_name}" link set dev "${ns_dev}" up17 18 ip netns exec "${ns_name}" ethtool -K "${ns_dev}" gro on tso off19}20 21setup_ns() {22 # Set up server_ns namespace and client_ns namespace23 ip link add name server type veth peer name client24 25 setup_veth_ns "${dev}" ${server_ns} server "${SERVER_MAC}"26 setup_veth_ns "${dev}" ${client_ns} client "${CLIENT_MAC}"27}28 29cleanup_ns() {30 local ns_name31 32 for ns_name in ${client_ns} ${server_ns}; do33 [[ -e /var/run/netns/"${ns_name}" ]] && ip netns del "${ns_name}"34 done35}36 37setup() {38 # no global init setup step needed39 :40}41 42cleanup() {43 cleanup_ns44}45