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selftests: netfilter: conntrack_ipip_mtu.sh: shellcheck cleanups

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No functional change intended.

Signed-off-by: Florian Westphal <fw@strlen.de>
Link: https://lore.kernel.org/r/20240418152744.15105-9-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Florian Westphal 2024-04-18 17:27:36 +02:00 committed by Jakub Kicinski
parent d6905f088d
commit 05af10a88e
1 changed files with 37 additions and 37 deletions
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74
tools/testing/selftests/net/netfilter/conntrack_ipip_mtu.sh
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@ -31,7 +31,7 @@ setup_ns r_a r_b r_w c_a c_b
cleanup() {
cleanup_all_ns
rm -f ${rx}
rm -f "$rx"
}
trap cleanup EXIT
@ -46,20 +46,20 @@ listener_ready()
test_path() {
msg="$1"
ip netns exec ${c_b} socat -t 3 - udp4-listen:5000,reuseaddr > ${rx} < /dev/null &
ip netns exec "$c_b" socat -t 3 - udp4-listen:5000,reuseaddr > "$rx" < /dev/null &
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 ${c_a} socat -t 1 -u STDIN UDP:192.168.20.2:5000
ip netns exec "$c_a" socat -t 1 -u STDIN UDP:192.168.20.2:5000
done
wait
bytes=$(wc -c < ${rx})
bytes=$(wc -c < "$rx")
if [ $bytes -eq 1400 ];then
if [ "$bytes" -eq 1400 ];then
echo "OK: PMTU $msg connection tracking"
else
echo "FAIL: PMTU $msg connection tracking: got $bytes, expected 1400"
@ -78,24 +78,24 @@ test_path() {
# 10.4.4.1 via 10.2.2.254 (Router B via Wanrouter)
# No iptables rules at all.
ip link add veth0 netns ${r_a} type veth peer name veth0 netns ${r_w}
ip link add veth1 netns ${r_a} type veth peer name veth0 netns ${c_a}
ip link add veth0 netns "$r_a" type veth peer name veth0 netns "$r_w"
ip link add veth1 netns "$r_a" type veth peer name veth0 netns "$c_a"
l_addr="10.2.2.1"
r_addr="10.4.4.1"
ip netns exec ${r_a} ip link add ipip0 type ipip local ${l_addr} remote ${r_addr} mode ipip || exit $ksft_skip
ip netns exec "$r_a" 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
ip -net ${r_a} link set $dev up
ip -net "$r_a" link set "$dev" up
done
ip -net ${r_a} addr add 10.2.2.1/24 dev veth0
ip -net ${r_a} addr add 192.168.10.1/24 dev veth1
ip -net "$r_a" addr add 10.2.2.1/24 dev veth0
ip -net "$r_a" addr add 192.168.10.1/24 dev veth1
ip -net ${r_a} route add 192.168.20.0/24 dev ipip0
ip -net ${r_a} route add 10.4.4.0/24 via 10.2.2.254
ip -net "$r_a" route add 192.168.20.0/24 dev ipip0
ip -net "$r_a" route add 10.4.4.0/24 via 10.2.2.254
ip netns exec ${r_a} sysctl -q net.ipv4.conf.all.forwarding=1 > /dev/null
ip netns exec "$r_a" sysctl -q net.ipv4.conf.all.forwarding=1 > /dev/null
# Detailed setup for Router B
# ---------------------------
@ -108,46 +108,46 @@ ip netns exec ${r_a} sysctl -q net.ipv4.conf.all.forwarding=1 > /dev/null
# 10.2.2.1 via 10.4.4.254 (Router A via Wanrouter)
# No iptables rules at all.
ip link add veth0 netns ${r_b} type veth peer name veth1 netns ${r_w}
ip link add veth1 netns ${r_b} type veth peer name veth0 netns ${c_b}
ip link add veth0 netns "$r_b" type veth peer name veth1 netns "$r_w"
ip link add veth1 netns "$r_b" type veth peer name veth0 netns "$c_b"
l_addr="10.4.4.1"
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 $ksft_skip
ip netns exec "$r_b" ip link add ipip0 type ipip local "${l_addr}" remote "${r_addr}" mode ipip || exit $ksft_skip
for dev in veth0 veth1 ipip0; do
ip -net ${r_b} link set $dev up
ip -net "$r_b" link set $dev up
done
ip -net ${r_b} addr add 10.4.4.1/24 dev veth0
ip -net ${r_b} addr add 192.168.20.1/24 dev veth1
ip -net "$r_b" addr add 10.4.4.1/24 dev veth0
ip -net "$r_b" addr add 192.168.20.1/24 dev veth1
ip -net ${r_b} route add 192.168.10.0/24 dev ipip0
ip -net ${r_b} route add 10.2.2.0/24 via 10.4.4.254
ip netns exec ${r_b} sysctl -q net.ipv4.conf.all.forwarding=1 > /dev/null
ip -net "$r_b" route add 192.168.10.0/24 dev ipip0
ip -net "$r_b" route add 10.2.2.0/24 via 10.4.4.254
ip netns exec "$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 veth0 up
ip -net ${c_a} route add default via 192.168.10.1
ip -net "$c_a" addr add 192.168.10.2/24 dev veth0
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 ${c_b} route add default via 192.168.20.1
ip -net "$c_b" addr add 192.168.20.2/24 dev veth0
ip -net "$c_b" link set dev veth0 up
ip -net "$c_b" 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" 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 veth0 up mtu 1400
ip -net ${r_w} link set dev veth1 up mtu 1400
ip -net "$r_w" link set dev veth0 up mtu 1400
ip -net "$r_w" link set dev veth1 up mtu 1400
ip -net ${r_a} link set dev veth0 mtu 1400
ip -net ${r_b} link set dev veth0 mtu 1400
ip -net "$r_a" link set dev veth0 mtu 1400
ip -net "$r_b" link set dev veth0 mtu 1400
ip netns exec ${r_w} sysctl -q net.ipv4.conf.all.forwarding=1 > /dev/null
ip netns exec "$r_w" sysctl -q net.ipv4.conf.all.forwarding=1 > /dev/null
# Path MTU discovery
# ------------------
@ -187,5 +187,5 @@ test_path "without"
#packet is too big (1400) for the tunnel PMTU (1380) to Router B, it is
#dropped on Router A before sending.
ip netns exec ${r_a} iptables -A FORWARD -m conntrack --ctstate NEW
ip netns exec "$r_a" iptables -A FORWARD -m conntrack --ctstate NEW
test_path "with"