From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4F5F240BCBC; Mon, 13 Jul 2026 12:46:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783946832; cv=none; b=dp4ZOpMatArzdVYa0RZ1B8puCqrsmzBeGkOFETQuhM9afX5ZsvoYgRzoxyLCQaiDq2DbQKE89ur8XgnoMDWy/D//i4OWCO6YxP94jDm/Zb8rP7SDmFsQGZnzA1c5dlBx+PrlwAu9IDiZ2Dwgbe5e0YR6lkhEk2GkJNy8P+ueWBk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783946832; c=relaxed/simple; bh=JUOlTSIvxKhsRlE6//c/p/Cj1l8zVEvYKyIj87vcuuM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=DbT0MUz7DUesh9iztYOp3XkQizZwfW0Xu1M8ONyv++PmIVtZLcPUMeOGYcN9s7ndf2JF/2AnBNc26nVnvCmtapdWmimyEP3Wrk8e8duHjb3quChVstxeb8AmFJdEbtks2gP0AqT4msy1ZJZHwyRnC/A2yJC+UGy4cWUPGHMm6LQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=cwx391WJ; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="cwx391WJ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9A7F21F00A3A; Mon, 13 Jul 2026 12:46:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783946817; bh=qhSKO1TlOOgIkh5ph4Qqy3ckZiD3wlWr/B0sEX/B/4k=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=cwx391WJDCkC6PST+9lD0BmWmBrunYda9r3NVBgyoDgOqQoGbTr7zYNqHfyQQQqKb IPTnJ8PdU803ASNppjpRx2tJx8erw/nox28Syb/s7rlHM9PNxWExfOriWS1yrbY2+i coKW8nNMjnFlxDzxBMO0fcGO71pUWeJXH0Y0g3OnTXM4QV4FQhxE+x4oqTQRTRs8wP UQCyCdF9zhHMbgnt2/lhlGHydfnHBLXDeaQaGXZWTAvvM50UbUWOmm83bh6iJz0MA1 jAOSEdImg2YOFGGP90eMR1Ls4eKfzylog1jULVnJE9iiiaw6bwJYk6P3Fdz0YzC9CD 4DNfEXtfdrKtg== From: Lorenzo Bianconi Date: Mon, 13 Jul 2026 14:46:23 +0200 Subject: [PATCH nf-next v6 6/6] selftests: netfilter: nft_flowtable.sh: add SIT flowtable selftest Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260713-b4-flowtable-sw-accel-ip6ip-v6-6-33f0155fc658@kernel.org> References: <20260713-b4-flowtable-sw-accel-ip6ip-v6-0-33f0155fc658@kernel.org> In-Reply-To: <20260713-b4-flowtable-sw-accel-ip6ip-v6-0-33f0155fc658@kernel.org> To: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Felix Fietkau , Matthias Brugger , AngeloGioacchino Del Regno , Simon Horman , David Ahern , Ido Schimmel , Pablo Neira Ayuso , Florian Westphal , Phil Sutter , Shuah Khan , Lorenzo Bianconi Cc: linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, coreteam@netfilter.org, linux-kselftest@vger.kernel.org X-Mailer: b4 0.14.3 Similar to IPIP, IP6IP6 and IPv4 over IPv6, introduce specific selftest for SIT flowtable sw acceleration in nft_flowtable.sh. Also add tunnel-specific flow-add rules for sit1 and sit1.10 so that check_counters() properly verifies offload occurred, and restore IPv6 default routes at cleanup to prevent tunnel routes leaking to subsequent tests (e.g. IPsec). Signed-off-by: Lorenzo Bianconi --- tools/testing/selftests/net/netfilter/config | 1 + .../selftests/net/netfilter/nft_flowtable.sh | 53 ++++++++++++++++++++++ 2 files changed, 54 insertions(+) diff --git a/tools/testing/selftests/net/netfilter/config b/tools/testing/selftests/net/netfilter/config index c3c121b6f300..a212b9edbcd9 100644 --- a/tools/testing/selftests/net/netfilter/config +++ b/tools/testing/selftests/net/netfilter/config @@ -35,6 +35,7 @@ CONFIG_IP_SCTP=m CONFIG_IPV6=y CONFIG_IPV6_MULTIPLE_TABLES=y CONFIG_IPV6_TUNNEL=m +CONFIG_IPV6_SIT=m CONFIG_IP_VS=m CONFIG_IP_VS_PROTO_TCP=y CONFIG_IP_VS_RR=m diff --git a/tools/testing/selftests/net/netfilter/nft_flowtable.sh b/tools/testing/selftests/net/netfilter/nft_flowtable.sh index 1cb5c65351b7..cda68070cd00 100755 --- a/tools/testing/selftests/net/netfilter/nft_flowtable.sh +++ b/tools/testing/selftests/net/netfilter/nft_flowtable.sh @@ -597,6 +597,10 @@ ip -net "$nsr1" addr add 192.168.210.1/24 dev tun6 ip -net "$nsr1" addr add fee1:3::1/64 dev tun6 nodad ip netns exec "$nsr1" sysctl net.ipv4.conf.tun6.forwarding=1 > /dev/null +ip -net "$nsr1" link add name sit1 type sit local 192.168.10.1 remote 192.168.10.2 ttl 255 +ip -net "$nsr1" link set sit1 up +ip -net "$nsr1" addr add fe01:3::1/64 dev sit1 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 "$nsr2" addr add 192.168.100.2/24 dev tun0 @@ -608,6 +612,10 @@ ip -net "$nsr2" addr add 192.168.210.2/24 dev tun6 ip -net "$nsr2" addr add fee1:3::2/64 dev tun6 nodad ip netns exec "$nsr2" sysctl net.ipv4.conf.tun6.forwarding=1 > /dev/null +ip -net "$nsr2" link add name sit1 type sit local 192.168.10.2 remote 192.168.10.1 ttl 255 +ip -net "$nsr2" link set sit1 up +ip -net "$nsr2" addr add fe01:3::2/64 dev sit1 nodad + ip -net "$nsr1" route change default via 192.168.100.2 ip -net "$nsr2" route change default via 192.168.100.1 @@ -626,6 +634,9 @@ ip netns exec "$nsr1" nft -a insert rule inet filter forward 'meta oif tun0 acce ip netns exec "$nsr1" nft -a insert rule inet filter forward \ 'meta oif tun6 tcp dport 12345 ct mark set 1 flow add @f1 counter name routed_orig accept' ip netns exec "$nsr1" nft -a insert rule inet filter forward 'meta oif tun6 accept' +ip netns exec "$nsr1" nft -a insert rule inet filter forward \ + 'meta oif sit1 tcp dport 12345 ct mark set 1 flow add @f1 counter name routed_orig accept' +ip netns exec "$nsr1" nft -a insert rule inet filter forward 'meta oif sit1 accept' ip netns exec "$nsr1" nft -a insert rule inet filter forward \ 'meta oif "veth0" tcp sport 12345 ct mark set 1 flow add @f1 counter name routed_repl accept' @@ -652,6 +663,19 @@ if ! test_tcp_forwarding_nat "$ns1" "$ns2" 1 "IP4IP6 tunnel"; then ret=1 fi +ip -6 -net "$nsr1" route delete default +ip -6 -net "$nsr1" route add default via fe01:3::2 +ip -6 -net "$nsr2" route delete default +ip -6 -net "$nsr2" route add default via fe01:3::1 + +if test_tcp_forwarding "$ns1" "$ns2" 1 6 "[dead:2::99]" 12345; then + check_counters "flow offload for ns1/ns2 SIT tunnel" +else + echo "FAIL: flow offload for ns1/ns2 with SIT tunnel" 1>&2 + ip netns exec "$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 @@ -682,6 +706,13 @@ ip netns exec "$nsr1" nft -a insert rule inet filter forward \ 'meta oif tun6.10 tcp dport 12345 ct mark set 1 flow add @f1 counter name routed_orig accept' ip netns exec "$nsr1" nft -a insert rule inet filter forward 'meta oif tun6.10 accept' +ip -net "$nsr1" link add name sit1.10 type sit local 192.168.20.1 remote 192.168.20.2 ttl 255 +ip -net "$nsr1" link set sit1.10 up +ip -net "$nsr1" addr add fe01:5::1/64 dev sit1.10 nodad +ip netns exec "$nsr1" nft -a insert rule inet filter forward \ + 'meta oif sit1.10 tcp dport 12345 ct mark set 1 flow add @f1 counter name routed_orig accept' +ip netns exec "$nsr1" nft -a insert rule inet filter forward 'meta oif sit1.10 accept' + ip -net "$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 @@ -699,6 +730,11 @@ ip -net "$nsr2" link set tun6.10 up ip -net "$nsr2" addr add 192.168.220.2/24 dev tun6.10 ip -net "$nsr2" addr add fee1:5::2/64 dev tun6.10 nodad ip netns exec "$nsr2" sysctl net.ipv4.conf.tun6/10.forwarding=1 > /dev/null + +ip -net "$nsr2" link add name sit1.10 type sit local 192.168.20.2 remote 192.168.20.1 ttl 255 +ip -net "$nsr2" link set sit1.10 up +ip -net "$nsr2" addr add fe01:5::2/64 dev sit1.10 nodad + ip -6 -net "$nsr2" route delete default ip -6 -net "$nsr2" route add default via fee1:5::1 @@ -725,11 +761,28 @@ if ! test_tcp_forwarding_nat "$ns1" "$ns2" 1 "IP4IP6 tunnel over vlan"; then ret=1 fi +ip -6 -net "$nsr1" route delete default +ip -6 -net "$nsr1" route add default via fe01:5::2 +ip -6 -net "$nsr2" route delete default +ip -6 -net "$nsr2" route add default via fe01:5::1 + +if test_tcp_forwarding "$ns1" "$ns2" 1 6 "[dead:2::99]" 12345; then + check_counters "flow offload for ns1/ns2 SIT tunnel over vlan" +else + echo "FAIL: flow offload for ns1/ns2 with SIT tunnel over vlan" 1>&2 + ip netns exec "$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 +ip -6 -net "$nsr1" route delete default +ip -6 -net "$nsr1" route add default via fee1:2::2 +ip -6 -net "$nsr2" route delete default +ip -6 -net "$nsr2" route add default via fee1:2::1 } # Another test: -- 2.55.0