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selftests: netfilter: conntrack_vrf.sh: move to lib.sh infra

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swap test for "ip" with "conntrack", former is already accounted for
via setup_ns helper.  Also switch to bash.

Signed-off-by: Florian Westphal <fw@strlen.de>
Link: https://lore.kernel.org/r/20240411233624.8129-8-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Florian Westphal 2024-04-12 01:36:12 +02:00 committed by Jakub Kicinski
parent 9785517a22
commit 954398b4d8
1 changed files with 39 additions and 62 deletions
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101
tools/testing/selftests/net/netfilter/conntrack_vrf.sh
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@ -1,4 +1,4 @@
#!/bin/sh
#!/bin/bash
# This script demonstrates interaction of conntrack and vrf.
# The vrf driver calls the netfilter hooks again, with oif/iif
@ -28,84 +28,65 @@
# that was supposed to be fixed by the commit mentioned above to make sure
# that any fix to test case 1 won't break masquerade again.
ksft_skip=4
source lib.sh
IP0=172.30.30.1
IP1=172.30.30.2
PFXL=30
ret=0
sfx=$(mktemp -u "XXXXXXXX")
ns0="ns0-$sfx"
ns1="ns1-$sfx"
cleanup()
{
ip netns pids $ns0 | xargs kill 2>/dev/null
ip netns pids $ns1 | xargs kill 2>/dev/null
ip netns del $ns0 $ns1
cleanup_all_ns
}
nft --version > /dev/null 2>&1
if [ $? -ne 0 ];then
if ! nft --version > /dev/null 2>&1;then
echo "SKIP: Could not run test without nft tool"
exit $ksft_skip
fi
ip -Version > /dev/null 2>&1
if [ $? -ne 0 ];then
echo "SKIP: Could not run test without ip tool"
if ! conntrack --version > /dev/null 2>&1;then
echo "SKIP: Could not run test without conntrack tool"
exit $ksft_skip
fi
ip netns add "$ns0"
if [ $? -ne 0 ];then
echo "SKIP: Could not create net namespace $ns0"
exit $ksft_skip
fi
ip netns add "$ns1"
trap cleanup EXIT
ip netns exec $ns0 sysctl -q -w net.ipv4.conf.default.rp_filter=0
ip netns exec $ns0 sysctl -q -w net.ipv4.conf.all.rp_filter=0
ip netns exec $ns0 sysctl -q -w net.ipv4.conf.all.rp_filter=0
setup_ns ns0 ns1
ip link add veth0 netns "$ns0" type veth peer name veth0 netns "$ns1" > /dev/null 2>&1
if [ $? -ne 0 ];then
ip netns exec "$ns0" sysctl -q -w net.ipv4.conf.default.rp_filter=0
ip netns exec "$ns0" sysctl -q -w net.ipv4.conf.all.rp_filter=0
ip netns exec "$ns0" sysctl -q -w net.ipv4.conf.all.rp_filter=0
if ! ip link add veth0 netns "$ns0" type veth peer name veth0 netns "$ns1" > /dev/null 2>&1; then
echo "SKIP: Could not add veth device"
exit $ksft_skip
fi
ip -net $ns0 li add tvrf type vrf table 9876
if [ $? -ne 0 ];then
if ! ip -net "$ns0" li add tvrf type vrf table 9876; then
echo "SKIP: Could not add vrf device"
exit $ksft_skip
fi
ip -net $ns0 li set lo up
ip -net "$ns0" li set veth0 master tvrf
ip -net "$ns0" li set tvrf up
ip -net "$ns0" li set veth0 up
ip -net "$ns1" li set veth0 up
ip -net $ns0 li set veth0 master tvrf
ip -net $ns0 li set tvrf up
ip -net $ns0 li set veth0 up
ip -net $ns1 li set veth0 up
ip -net "$ns0" addr add $IP0/$PFXL dev veth0
ip -net "$ns1" addr add $IP1/$PFXL dev veth0
ip -net $ns0 addr add $IP0/$PFXL dev veth0
ip -net $ns1 addr add $IP1/$PFXL dev veth0
ip netns exec $ns1 iperf3 -s > /dev/null 2>&1&
if [ $? -ne 0 ];then
echo "SKIP: Could not start iperf3"
exit $ksft_skip
fi
ip netns exec "$ns1" iperf3 -s > /dev/null 2>&1 &
# test vrf ingress handling.
# The incoming connection should be placed in conntrack zone 1,
# as decided by the first iteration of the ruleset.
test_ct_zone_in()
{
ip netns exec $ns0 nft -f - <<EOF
ip netns exec "$ns0" nft -f - <<EOF
table testct {
chain rawpre {
type filter hook prerouting priority raw;
@ -126,21 +107,21 @@ table testct {
}
}
EOF
ip netns exec $ns1 ping -W 1 -c 1 -I veth0 $IP0 > /dev/null
ip netns exec "$ns1" ping -W 1 -c 1 -I veth0 "$IP0" > /dev/null
# should be in zone 1, not zone 2
count=$(ip netns exec $ns0 conntrack -L -s $IP1 -d $IP0 -p icmp --zone 1 2>/dev/null | wc -l)
if [ $count -eq 1 ]; then
count=$(ip netns exec "$ns0" conntrack -L -s $IP1 -d $IP0 -p icmp --zone 1 2>/dev/null | wc -l)
if [ "$count" -eq 1 ]; then
echo "PASS: entry found in conntrack zone 1"
else
echo "FAIL: entry not found in conntrack zone 1"
count=$(ip netns exec $ns0 conntrack -L -s $IP1 -d $IP0 -p icmp --zone 2 2> /dev/null | wc -l)
if [ $count -eq 1 ]; then
count=$(ip netns exec "$ns0" conntrack -L -s $IP1 -d $IP0 -p icmp --zone 2 2> /dev/null | wc -l)
if [ "$count" -eq 1 ]; then
echo "FAIL: entry found in zone 2 instead"
else
echo "FAIL: entry not in zone 1 or 2, dumping table"
ip netns exec $ns0 conntrack -L
ip netns exec $ns0 nft list ruleset
ip netns exec "$ns0" conntrack -L
ip netns exec "$ns0" nft list ruleset
fi
fi
}
@ -153,12 +134,12 @@ test_masquerade_vrf()
local qdisc=$1
if [ "$qdisc" != "default" ]; then
tc -net $ns0 qdisc add dev tvrf root $qdisc
tc -net "$ns0" qdisc add dev tvrf root "$qdisc"
fi
ip netns exec $ns0 conntrack -F 2>/dev/null
ip netns exec "$ns0" conntrack -F 2>/dev/null
ip netns exec $ns0 nft -f - <<EOF
ip netns exec "$ns0" nft -f - <<EOF
flush ruleset
table ip nat {
chain rawout {
@ -179,17 +160,15 @@ table ip nat {
}
}
EOF
ip netns exec $ns0 ip vrf exec tvrf iperf3 -t 1 -c $IP1 >/dev/null
if [ $? -ne 0 ]; then
if ! ip netns exec "$ns0" ip vrf exec tvrf iperf3 -t 1 -c $IP1 >/dev/null; then
echo "FAIL: iperf3 connect failure with masquerade + sport rewrite on vrf device"
ret=1
return
fi
# must also check that nat table was evaluated on second (lower device) iteration.
ip netns exec $ns0 nft list table ip nat |grep -q 'counter packets 2' &&
ip netns exec $ns0 nft list table ip nat |grep -q 'untracked counter packets [1-9]'
if [ $? -eq 0 ]; then
ip netns exec "$ns0" nft list table ip nat |grep -q 'counter packets 2' &&
if ip netns exec "$ns0" nft list table ip nat |grep -q 'untracked counter packets [1-9]'; then
echo "PASS: iperf3 connect with masquerade + sport rewrite on vrf device ($qdisc qdisc)"
else
echo "FAIL: vrf rules have unexpected counter value"
@ -197,7 +176,7 @@ EOF
fi
if [ "$qdisc" != "default" ]; then
tc -net $ns0 qdisc del dev tvrf root
tc -net "$ns0" qdisc del dev tvrf root
fi
}
@ -206,8 +185,8 @@ EOF
# oifname is the lower device (veth0 in this case).
test_masquerade_veth()
{
ip netns exec $ns0 conntrack -F 2>/dev/null
ip netns exec $ns0 nft -f - <<EOF
ip netns exec "$ns0" conntrack -F 2>/dev/null
ip netns exec "$ns0" nft -f - <<EOF
flush ruleset
table ip nat {
chain postrouting {
@ -216,16 +195,14 @@ table ip nat {
}
}
EOF
ip netns exec $ns0 ip vrf exec tvrf iperf3 -t 1 -c $IP1 > /dev/null
if [ $? -ne 0 ]; then
if ! ip netns exec "$ns0" ip vrf exec tvrf iperf3 -t 1 -c $IP1 > /dev/null; then
echo "FAIL: iperf3 connect failure with masquerade + sport rewrite on veth device"
ret=1
return
fi
# must also check that nat table was evaluated on second (lower device) iteration.
ip netns exec $ns0 nft list table ip nat |grep -q 'counter packets 2'
if [ $? -eq 0 ]; then
if ip netns exec "$ns0" nft list table ip nat |grep -q 'counter packets 2'; then
echo "PASS: iperf3 connect with masquerade + sport rewrite on veth device"
else
echo "FAIL: vrf masq rule has unexpected counter value"