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Message-ID: <20260128154155.32143-6-fw@strlen.de> Date: Wed, 28 Jan 2026 16:41:51 +0100 From: Florian Westphal <fw@...len.de> To: <netdev@...r.kernel.org> Cc: Paolo Abeni <pabeni@...hat.com>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, <netfilter-devel@...r.kernel.org>, pablo@...filter.org Subject: [PATCH net-next 5/9] selftests: netfilter: nft_flowtable.sh: Add IP6IP6 flowtable selftest From: Lorenzo Bianconi <lorenzo@...nel.org> Similar to IPIP, introduce specific selftest for IP6IP6 flowtable SW acceleration in nft_flowtable.sh Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org> Signed-off-by: Florian Westphal <fw@...len.de> --- .../selftests/net/netfilter/nft_flowtable.sh | 62 ++++++++++++++++--- 1 file changed, 53 insertions(+), 9 deletions(-) diff --git a/tools/testing/selftests/net/netfilter/nft_flowtable.sh b/tools/testing/selftests/net/netfilter/nft_flowtable.sh index a68bc882fa4e..14d7f67715ed 100755 --- a/tools/testing/selftests/net/netfilter/nft_flowtable.sh +++ b/tools/testing/selftests/net/netfilter/nft_flowtable.sh @@ -592,16 +592,28 @@ ip -net "$nsr1" link set tun0 up ip -net "$nsr1" addr add 192.168.100.1/24 dev tun0 ip netns exec "$nsr1" sysctl net.ipv4.conf.tun0.forwarding=1 > /dev/null +ip -net "$nsr1" link add name tun6 type ip6tnl local fee1:2::1 remote fee1:2::2 +ip -net "$nsr1" link set tun6 up +ip -net "$nsr1" addr add fee1:3::1/64 dev tun6 nodad + ip -net "$nsr2" link add name tun0 type ipip local 192.168.10.2 remote 192.168.10.1 ip -net "$nsr2" link set tun0 up ip -net "$nsr2" addr add 192.168.100.2/24 dev tun0 ip netns exec "$nsr2" sysctl net.ipv4.conf.tun0.forwarding=1 > /dev/null +ip -net "$nsr2" link add name tun6 type ip6tnl local fee1:2::2 remote fee1:2::1 +ip -net "$nsr2" link set tun6 up +ip -net "$nsr2" addr add fee1:3::2/64 dev tun6 nodad + ip -net "$nsr1" route change default via 192.168.100.2 ip -net "$nsr2" route change default via 192.168.100.1 +ip -6 -net "$nsr1" route change default via fee1:3::2 +ip -6 -net "$nsr2" route change default via fee1:3::1 ip -net "$ns2" route add default via 10.0.2.1 +ip -6 -net "$ns2" route add default via dead:2::1 ip netns exec "$nsr1" nft -a insert rule inet filter forward 'meta oif tun0 accept' +ip netns exec "$nsr1" nft -a insert rule inet filter forward 'meta oif tun6 accept' ip netns exec "$nsr1" nft -a insert rule inet filter forward \ 'meta oif "veth0" tcp sport 12345 ct mark set 1 flow add @f1 counter name routed_repl accept' @@ -611,28 +623,51 @@ if ! test_tcp_forwarding_nat "$ns1" "$ns2" 1 "IPIP tunnel"; then ret=1 fi +if test_tcp_forwarding "$ns1" "$ns2" 1 6 "[dead:2::99]" 12345; then + echo "PASS: flow offload for ns1/ns2 IP6IP6 tunnel" +else + echo "FAIL: flow offload for ns1/ns2 with IP6IP6 tunnel" 1>&2 + ip netns exec "$nsr1" nft list ruleset + ret=1 +fi + # Create vlan tagged devices for IPIP traffic. ip -net "$nsr1" link add link veth1 name veth1.10 type vlan id 10 ip -net "$nsr1" link set veth1.10 up ip -net "$nsr1" addr add 192.168.20.1/24 dev veth1.10 +ip -net "$nsr1" addr add fee1:4::1/64 dev veth1.10 nodad ip netns exec "$nsr1" sysctl net.ipv4.conf.veth1/10.forwarding=1 > /dev/null ip netns exec "$nsr1" nft -a insert rule inet filter forward 'meta oif veth1.10 accept' -ip -net "$nsr1" link add name tun1 type ipip local 192.168.20.1 remote 192.168.20.2 -ip -net "$nsr1" link set tun1 up -ip -net "$nsr1" addr add 192.168.200.1/24 dev tun1 + +ip -net "$nsr1" link add name tun0.10 type ipip local 192.168.20.1 remote 192.168.20.2 +ip -net "$nsr1" link set tun0.10 up +ip -net "$nsr1" addr add 192.168.200.1/24 dev tun0.10 ip -net "$nsr1" route change default via 192.168.200.2 -ip netns exec "$nsr1" sysctl net.ipv4.conf.tun1.forwarding=1 > /dev/null -ip netns exec "$nsr1" nft -a insert rule inet filter forward 'meta oif tun1 accept' +ip netns exec "$nsr1" sysctl net.ipv4.conf.tun0/10.forwarding=1 > /dev/null +ip netns exec "$nsr1" nft -a insert rule inet filter forward 'meta oif tun0.10 accept' + +ip -net "$nsr1" link add name tun6.10 type ip6tnl local fee1:4::1 remote fee1:4::2 +ip -net "$nsr1" link set tun6.10 up +ip -net "$nsr1" addr add fee1:5::1/64 dev tun6.10 nodad +ip -6 -net "$nsr1" route change default via fee1:5::2 +ip netns exec "$nsr1" nft -a insert rule inet filter forward 'meta oif tun6.10 accept' ip -net "$nsr2" link add link veth0 name veth0.10 type vlan id 10 ip -net "$nsr2" link set veth0.10 up ip -net "$nsr2" addr add 192.168.20.2/24 dev veth0.10 +ip -net "$nsr2" addr add fee1:4::2/64 dev veth0.10 nodad ip netns exec "$nsr2" sysctl net.ipv4.conf.veth0/10.forwarding=1 > /dev/null -ip -net "$nsr2" link add name tun1 type ipip local 192.168.20.2 remote 192.168.20.1 -ip -net "$nsr2" link set tun1 up -ip -net "$nsr2" addr add 192.168.200.2/24 dev tun1 + +ip -net "$nsr2" link add name tun0.10 type ipip local 192.168.20.2 remote 192.168.20.1 +ip -net "$nsr2" link set tun0.10 up +ip -net "$nsr2" addr add 192.168.200.2/24 dev tun0.10 ip -net "$nsr2" route change default via 192.168.200.1 -ip netns exec "$nsr2" sysctl net.ipv4.conf.tun1.forwarding=1 > /dev/null +ip netns exec "$nsr2" sysctl net.ipv4.conf.tun0/10.forwarding=1 > /dev/null + +ip -net "$nsr2" link add name tun6.10 type ip6tnl local fee1:4::2 remote fee1:4::1 +ip -net "$nsr2" link set tun6.10 up +ip -net "$nsr2" addr add fee1:5::2/64 dev tun6.10 nodad +ip -6 -net "$nsr2" route change default via fee1:5::1 if ! test_tcp_forwarding_nat "$ns1" "$ns2" 1 "IPIP tunnel over vlan"; then echo "FAIL: flow offload for ns1/ns2 with IPIP tunnel over vlan" 1>&2 @@ -640,10 +675,19 @@ if ! test_tcp_forwarding_nat "$ns1" "$ns2" 1 "IPIP tunnel over vlan"; then ret=1 fi +if test_tcp_forwarding "$ns1" "$ns2" 1 6 "[dead:2::99]" 12345; then + echo "PASS: flow offload for ns1/ns2 IP6IP6 tunnel over vlan" +else + echo "FAIL: flow offload for ns1/ns2 with IP6IP6 tunnel over vlan" 1>&2 + ip netns exec "$nsr1" nft list ruleset + ret=1 +fi + # Restore the previous configuration ip -net "$nsr1" route change default via 192.168.10.2 ip -net "$nsr2" route change default via 192.168.10.1 ip -net "$ns2" route del default via 10.0.2.1 +ip -6 -net "$ns2" route del default via dead:2::1 } # Another test: -- 2.52.0
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