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selftests: netfilter: conntrack_ipip_mtu.sh" move to lib.sh infra

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Signed-off-by: Florian Westphal <fw@strlen.de>
Link: https://lore.kernel.org/r/20240411233624.8129-9-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Florian Westphal 2024-04-12 01:36:13 +02:00 committed by Jakub Kicinski
parent 954398b4d8
commit 0413156eec
1 changed files with 14 additions and 23 deletions
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37
tools/testing/selftests/net/netfilter/conntrack_ipip_mtu.sh
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@ -1,8 +1,7 @@
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4
source lib.sh
# Conntrack needs to reassemble fragments in order to have complete
# packets for rule matching. Reassembly can lead to packet loss.
@ -23,15 +22,8 @@ ksft_skip=4
# between Client A and Client B over WAN. Wanrouter has MTU 1400 set
# on its interfaces.
rnd=$(mktemp -u XXXXXXXX)
rx=$(mktemp)
r_a="ns-ra-$rnd"
r_b="ns-rb-$rnd"
r_w="ns-rw-$rnd"
c_a="ns-ca-$rnd"
c_b="ns-cb-$rnd"
checktool (){
if ! $1 > /dev/null 2>&1; then
echo "SKIP: Could not $2"
@ -40,29 +32,31 @@ checktool (){
}
checktool "iptables --version" "run test without iptables"
checktool "ip -Version" "run test without ip tool"
checktool "which socat" "run test without socat"
checktool "ip netns add ${r_a}" "create net namespace"
checktool "socat -h" "run test without socat"
for n in ${r_b} ${r_w} ${c_a} ${c_b};do
ip netns add ${n}
done
setup_ns r_a r_b r_w c_a c_b
cleanup() {
for n in ${r_a} ${r_b} ${r_w} ${c_a} ${c_b};do
ip netns del ${n}
done
cleanup_all_ns
rm -f ${rx}
}
trap cleanup EXIT
listener_ready()
{
ns="$1"
port="$2"
ss -N "$ns" -lnu -o "sport = :$port" | grep -q "$port"
}
test_path() {
msg="$1"
ip netns exec ${c_b} socat -t 3 - udp4-listen:5000,reuseaddr > ${rx} < /dev/null &
sleep 1
busywait $BUSYWAIT_TIMEOUT listener_ready "$c_b" 5000
for i in 1 2 3; do
head -c1400 /dev/zero | tr "\000" "a" | \
ip netns exec ${c_a} socat -t 1 -u STDIN UDP:192.168.20.2:5000
@ -129,7 +123,7 @@ r_addr="10.2.2.1"
ip netns exec ${r_b} ip link add ipip0 type ipip local ${l_addr} remote ${r_addr} mode ipip || exit $ksft_skip
for dev in lo veth0 veth1 ipip0; do
for dev in veth0 veth1 ipip0; do
ip -net ${r_b} link set $dev up
done
@ -142,21 +136,18 @@ ip netns exec ${r_b} sysctl -q net.ipv4.conf.all.forwarding=1 > /dev/null
# Client A
ip -net ${c_a} addr add 192.168.10.2/24 dev veth0
ip -net ${c_a} link set dev lo up
ip -net ${c_a} link set dev veth0 up
ip -net ${c_a} route add default via 192.168.10.1
# Client A
ip -net ${c_b} addr add 192.168.20.2/24 dev veth0
ip -net ${c_b} link set dev veth0 up
ip -net ${c_b} link set dev lo up
ip -net ${c_b} route add default via 192.168.20.1
# Wan
ip -net ${r_w} addr add 10.2.2.254/24 dev veth0
ip -net ${r_w} addr add 10.4.4.254/24 dev veth1
ip -net ${r_w} link set dev lo up
ip -net ${r_w} link set dev veth0 up mtu 1400
ip -net ${r_w} link set dev veth1 up mtu 1400