Commit 0413156e authored by Florian Westphal's avatar Florian Westphal Committed by Jakub Kicinski
Browse files

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



Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
Link: https://lore.kernel.org/r/20240411233624.8129-9-fw@strlen.de


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 954398b4

tools/testing/selftests/net/netfilter/conntrack_ipip_mtu.sh

+14 −23
Original line number Diff line number Diff line 
#!/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