mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-06 02:50:43 +00:00
58ade67b02
Add a simple scripts to exercise several situations when enable route_localnet. Signed-off-by: Shijie Luo <luoshijie1@huawei.com> Signed-off-by: Zhiqiang liu <liuzhiqiang26@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
74 lines
1.8 KiB
Bash
Executable file
74 lines
1.8 KiB
Bash
Executable file
#!/bin/bash
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
#
|
|
# Run a couple of tests when route_localnet = 1.
|
|
|
|
readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
|
|
|
|
setup() {
|
|
ip netns add "${PEER_NS}"
|
|
ip -netns "${PEER_NS}" link set dev lo up
|
|
ip link add name veth0 type veth peer name veth1
|
|
ip link set dev veth0 up
|
|
ip link set dev veth1 netns "${PEER_NS}"
|
|
|
|
# Enable route_localnet and delete useless route 127.0.0.0/8.
|
|
sysctl -w net.ipv4.conf.veth0.route_localnet=1
|
|
ip netns exec "${PEER_NS}" sysctl -w net.ipv4.conf.veth1.route_localnet=1
|
|
ip route del 127.0.0.0/8 dev lo table local
|
|
ip netns exec "${PEER_NS}" ip route del 127.0.0.0/8 dev lo table local
|
|
|
|
ifconfig veth0 127.25.3.4/24 up
|
|
ip netns exec "${PEER_NS}" ifconfig veth1 127.25.3.14/24 up
|
|
|
|
ip route flush cache
|
|
ip netns exec "${PEER_NS}" ip route flush cache
|
|
}
|
|
|
|
cleanup() {
|
|
ip link del veth0
|
|
ip route add local 127.0.0.0/8 dev lo proto kernel scope host src 127.0.0.1
|
|
local -r ns="$(ip netns list|grep $PEER_NS)"
|
|
[ -n "$ns" ] && ip netns del $ns 2>/dev/null
|
|
}
|
|
|
|
# Run test when arp_announce = 2.
|
|
run_arp_announce_test() {
|
|
echo "run arp_announce test"
|
|
setup
|
|
|
|
sysctl -w net.ipv4.conf.veth0.arp_announce=2
|
|
ip netns exec "${PEER_NS}" sysctl -w net.ipv4.conf.veth1.arp_announce=2
|
|
ping -c5 -I veth0 127.25.3.14
|
|
if [ $? -ne 0 ];then
|
|
echo "failed"
|
|
else
|
|
echo "ok"
|
|
fi
|
|
|
|
cleanup
|
|
}
|
|
|
|
# Run test when arp_ignore = 3.
|
|
run_arp_ignore_test() {
|
|
echo "run arp_ignore test"
|
|
setup
|
|
|
|
sysctl -w net.ipv4.conf.veth0.arp_ignore=3
|
|
ip netns exec "${PEER_NS}" sysctl -w net.ipv4.conf.veth1.arp_ignore=3
|
|
ping -c5 -I veth0 127.25.3.14
|
|
if [ $? -ne 0 ];then
|
|
echo "failed"
|
|
else
|
|
echo "ok"
|
|
fi
|
|
|
|
cleanup
|
|
}
|
|
|
|
run_all_tests() {
|
|
run_arp_announce_test
|
|
run_arp_ignore_test
|
|
}
|
|
|
|
run_all_tests
|