77 lines · bash
1#!/bin/bash2# SPDX-License-Identifier: GPL-2.03#4# Run a couple of tests when route_localnet = 1.5 6readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"7 8setup() {9 ip netns add "${PEER_NS}"10 ip -netns "${PEER_NS}" link set dev lo up11 ip link add name veth0 type veth peer name veth112 ip link set dev veth0 up13 ip link set dev veth1 netns "${PEER_NS}"14 15 # Enable route_localnet and delete useless route 127.0.0.0/8.16 sysctl -w net.ipv4.conf.veth0.route_localnet=117 ip netns exec "${PEER_NS}" sysctl -w net.ipv4.conf.veth1.route_localnet=118 ip route del 127.0.0.0/8 dev lo table local19 ip netns exec "${PEER_NS}" ip route del 127.0.0.0/8 dev lo table local20 21 ip address add 127.25.3.4/24 dev veth022 ip link set dev veth0 up23 ip netns exec "${PEER_NS}" ip address add 127.25.3.14/24 dev veth124 ip netns exec "${PEER_NS}" ip link set dev veth1 up25 26 ip route flush cache27 ip netns exec "${PEER_NS}" ip route flush cache28}29 30cleanup() {31 ip link del veth032 ip route add local 127.0.0.0/8 dev lo proto kernel scope host src 127.0.0.133 local -r ns="$(ip netns list|grep $PEER_NS)"34 [ -n "$ns" ] && ip netns del $ns 2>/dev/null35}36 37# Run test when arp_announce = 2.38run_arp_announce_test() {39 echo "run arp_announce test"40 setup41 42 sysctl -w net.ipv4.conf.veth0.arp_announce=243 ip netns exec "${PEER_NS}" sysctl -w net.ipv4.conf.veth1.arp_announce=244 ping -c5 -I veth0 127.25.3.1445 if [ $? -ne 0 ];then46 echo "failed"47 else48 echo "ok"49 fi50 51 cleanup52}53 54# Run test when arp_ignore = 3.55run_arp_ignore_test() {56 echo "run arp_ignore test"57 setup58 59 sysctl -w net.ipv4.conf.veth0.arp_ignore=360 ip netns exec "${PEER_NS}" sysctl -w net.ipv4.conf.veth1.arp_ignore=361 ping -c5 -I veth0 127.25.3.1462 if [ $? -ne 0 ];then63 echo "failed"64 else65 echo "ok"66 fi67 68 cleanup69}70 71run_all_tests() {72 run_arp_announce_test73 run_arp_ignore_test74}75 76run_all_tests77