75 lines
1.8 KiB
Bash
75 lines
1.8 KiB
Bash
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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#
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# Run a couple of tests when route_localnet = 1.
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readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
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setup() {
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ip netns add "${PEER_NS}"
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ip -netns "${PEER_NS}" link set dev lo up
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ip link add name veth0 type veth peer name veth1
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ip link set dev veth0 up
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ip link set dev veth1 netns "${PEER_NS}"
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# Enable route_localnet and delete useless route 127.0.0.0/8.
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sysctl -w net.ipv4.conf.veth0.route_localnet=1
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ip netns exec "${PEER_NS}" sysctl -w net.ipv4.conf.veth1.route_localnet=1
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ip route del 127.0.0.0/8 dev lo table local
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ip netns exec "${PEER_NS}" ip route del 127.0.0.0/8 dev lo table local
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ifconfig veth0 127.25.3.4/24 up
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ip netns exec "${PEER_NS}" ifconfig veth1 127.25.3.14/24 up
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ip route flush cache
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ip netns exec "${PEER_NS}" ip route flush cache
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}
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cleanup() {
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ip link del veth0
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ip route add local 127.0.0.0/8 dev lo proto kernel scope host src 127.0.0.1
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local -r ns="$(ip netns list|grep $PEER_NS)"
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[ -n "$ns" ] && ip netns del $ns 2>/dev/null
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}
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# Run test when arp_announce = 2.
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run_arp_announce_test() {
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echo "run arp_announce test"
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setup
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sysctl -w net.ipv4.conf.veth0.arp_announce=2
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ip netns exec "${PEER_NS}" sysctl -w net.ipv4.conf.veth1.arp_announce=2
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ping -c5 -I veth0 127.25.3.14
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if [ $? -ne 0 ];then
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echo "failed"
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else
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echo "ok"
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fi
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cleanup
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}
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# Run test when arp_ignore = 3.
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run_arp_ignore_test() {
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echo "run arp_ignore test"
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setup
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sysctl -w net.ipv4.conf.veth0.arp_ignore=3
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ip netns exec "${PEER_NS}" sysctl -w net.ipv4.conf.veth1.arp_ignore=3
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ping -c5 -I veth0 127.25.3.14
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if [ $? -ne 0 ];then
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echo "failed"
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else
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echo "ok"
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fi
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cleanup
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}
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run_all_tests() {
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run_arp_announce_test
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run_arp_ignore_test
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}
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run_all_tests
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