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[2001:1c00:20d:1300:1b1c:4449:176a:89ea]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ac3147e9bc6sm405908066b.49.2025.03.15.13.00.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 15 Mar 2025 13:00:59 -0700 (PDT) From: Eric Woudstra To: Pablo Neira Ayuso , Jozsef Kadlecsik , Roopa Prabhu , Nikolay Aleksandrov , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Shuah Khan Cc: netfilter-devel@vger.kernel.org, bridge@lists.linux.dev, netdev@vger.kernel.org, linux-kselftest@vger.kernel.org, Eric Woudstra Subject: [PATCH v10 nf-next 3/3] selftests: netfilter: Add conntrack_bridge.sh Date: Sat, 15 Mar 2025 21:00:33 +0100 Message-ID: <20250315200033.17820-4-ericwouds@gmail.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20250315200033.17820-1-ericwouds@gmail.com> References: <20250315200033.17820-1-ericwouds@gmail.com> Precedence: bulk X-Mailing-List: bridge@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Check conntrack bridge is functional in various vlan setups. Signed-off-by: Eric Woudstra --- .../testing/selftests/net/netfilter/Makefile | 1 + .../net/netfilter/conntrack_bridge.sh | 176 ++++++++++++++++++ 2 files changed, 177 insertions(+) create mode 100755 tools/testing/selftests/net/netfilter/conntrack_bridge.sh diff --git a/tools/testing/selftests/net/netfilter/Makefile b/tools/testing/selftests/net/netfilter/Makefile index ffe161fac8b5..bee403d423f5 100644 --- a/tools/testing/selftests/net/netfilter/Makefile +++ b/tools/testing/selftests/net/netfilter/Makefile @@ -8,6 +8,7 @@ MNL_LDLIBS := $(shell $(HOSTPKG_CONFIG) --libs libmnl 2>/dev/null || echo -lmnl) TEST_PROGS := br_netfilter.sh bridge_brouter.sh TEST_PROGS += br_netfilter_queue.sh +TEST_PROGS += conntrack_bridge.sh TEST_PROGS += conntrack_dump_flush.sh TEST_PROGS += conntrack_icmp_related.sh TEST_PROGS += conntrack_ipip_mtu.sh diff --git a/tools/testing/selftests/net/netfilter/conntrack_bridge.sh b/tools/testing/selftests/net/netfilter/conntrack_bridge.sh new file mode 100755 index 000000000000..806551ef8cc2 --- /dev/null +++ b/tools/testing/selftests/net/netfilter/conntrack_bridge.sh @@ -0,0 +1,176 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# Check conntrack bridge is functional in various vlan setups. +# +# Setup is: +# +# nsclient1 -> nsbr -> nsclient2 +# ping nsclient2 from nsclient1, checking that conntrack established +# packets are seen. +# + +source lib.sh + +if ! nft --version > /dev/null 2>&1;then + echo "SKIP: Could not run test without nft tool" + exit $ksft_skip +fi + +cleanup() { + cleanup_all_ns +} + +trap cleanup EXIT + +setup_ns nsclient1 nsclient2 nsbr + +ret=0 + +add_addr() +{ + ns=$1 + dev=$2 + i=$3 + + ip -net "$ns" link set "$dev" up + ip -net "$ns" addr add "192.168.1.$i/24" dev "$dev" + ip -net "$ns" addr add "dead:1::$i/64" dev "$dev" nodad + ip -net "$ns" route add default dev "$dev" +} + +del_addr() +{ + ns=$1 + dev=$2 + i=$3 + + ip -net "$ns" route del default dev "$dev" + ip -net "$ns" addr del "dead:1::$i/64" dev "$dev" nodad + ip -net "$ns" addr del "192.168.1.$i/24" dev "$dev" + ip -net "$ns" link set "$dev" down +} + +send_pings() +{ + for ad in "$@"; do + if ! ip netns exec "$nsclient1" ping -c 1 -s 962 -q "$ad" >/dev/null; then + echo "ERROR: netns routing/connectivity broken to $ad" 1>&2 + exit 1 + fi + done +} + +check_counter() +{ + ns=$1 + name=$2 + expect=$3 + local lret=0 + + if ! ip netns exec "$ns" nft list counter bridge filter "$name" | grep -q "$expect"; then + echo "ERROR: counter $name in $ns has unexpected value (expected $expect)" 1>&2 + ip netns exec "$ns" nft list counter bridge filter "$name" 1>&2 + lret=1 + fi + ip netns exec "$ns" nft reset counters >/dev/null + + return $lret +} + +BR=br0 +if ! ip -net "$nsbr" link add $BR type bridge; then + echo "SKIP: Can't create bridge $BR" + exit $ksft_skip +fi + +DEV=veth0 +ip link add "$DEV" netns "$nsclient1" type veth peer name eth1 netns "$nsbr" +ip link add "$DEV" netns "$nsclient2" type veth peer name eth2 netns "$nsbr" + +ip -net "$nsbr" link set eth1 master $BR up +ip -net "$nsbr" link set eth2 master $BR up +ip -net "$nsbr" link set $BR up + +ip netns exec "$nsbr" nft -f - <