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[93.40.88.16]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49cee5d9db2sm62799975e9.8.2026.09.03.03.35.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Sep 2026 03:35:46 -0700 (PDT) From: Alessio Faina To: Andrea Mayer Cc: "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Shuah Khan , netdev@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] [net-next, v2] selftest/net: skip srv6_end_dt[4/6]_l3vpn_test.sh if vrftable not available Date: Thu, 3 Sep 2026 12:35:45 +0200 Message-ID: <20260903103545.1325276-1-alessio.faina@canonical.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit In case iproute2 is older than version 5.11.0, released ~Feb 23, 2021, the vrftable support is not available and the tests contained in the following 4 test files - srv6_end_dt4_l3vpn_test.sh - srv6_end_dt6_l3vpn_test.sh are failing in some kernel backports. This is the result of one those tests in an unsupported environment: \################################################################################ \TEST SECTION: SRv6 VPN connectivity test among hosts in the same tenant \################################################################################ \ \ TEST: Hosts connectivity: hs-t100-1 -> hs-t100-2 (tenant 100) [FAIL] \ \ TEST: Hosts connectivity: hs-t100-2 -> hs-t100-1 (tenant 100) [FAIL] \ \ TEST: Hosts connectivity: hs-t200-3 -> hs-t200-4 (tenant 200) [FAIL] \ \ TEST: Hosts connectivity: hs-t200-4 -> hs-t200-3 (tenant 200) [FAIL] \ To amend this, check the current running iproute2 supports the vrftable feature and, if not, just skip the entire test to avoid a failure. v2: - remove dx[4/6] tests - test if vrftable is available in the installed iproute2 application v1: https://patchwork.kernel.org/project/netdevbpf/patch/20260824091537.2305107-1-alessio.faina@canonical.com/ - initial approach by testing DT[4/6] and DX[4/6] - test if DT4/DT6 are available in iproute2 Signed-off-by: Alessio Faina --- ./tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh | 21 +++++++++++++++++++ ./tools/testing/selftests/net/srv6_end_dt6_l3vpn_test.sh | 21 +++++++++++++++++++ 2 files changed, 42 insertions(+) diff --git a/tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh b/tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh index a649dba3cb77..037e5fe1da2a 100755 --- a/tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh +++ b/tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh @@ -469,12 +469,33 @@ if [ ! -x "$(command -v ip)" ]; then exit $ksft_skip fi +test_vrftable_supp_or_ksft_skip() +{ + local nsname + + setup_ns nsname + ip netns exec "${nsname}" sh -c "echo 1 > /proc/sys/net/vrf/strict_mode" + ip -netns "${nsname}" link add vrf-100 type vrf table 100 + ip -netns "${nsname}" link set vrf-100 up + + if ! ip -netns "${nsname}" -6 route add fc00::1/128 \ + encap seg6local action End.DT4 vrftable 100 dev vrf-100 2>/dev/null; then + cleanup_ns "${nsname}" + echo "SKIP: SRv6 End.DT4 vrftable not supported" + exit "${ksft_skip}" + fi + + cleanup_ns "${nsname}" +} + modprobe vrf &>/dev/null if [ ! -e /proc/sys/net/vrf/strict_mode ]; then echo "SKIP: vrf sysctl does not exist" exit $ksft_skip fi +test_vrftable_supp_or_ksft_skip + cleanup &>/dev/null setup diff --git a/tools/testing/selftests/net/srv6_end_dt6_l3vpn_test.sh b/tools/testing/selftests/net/srv6_end_dt6_l3vpn_test.sh index e408406d8489..9a29e0d6c912 100755 --- a/tools/testing/selftests/net/srv6_end_dt6_l3vpn_test.sh +++ b/tools/testing/selftests/net/srv6_end_dt6_l3vpn_test.sh @@ -479,12 +479,33 @@ if [ ! -x "$(command -v ip)" ]; then exit $ksft_skip fi +test_vrftable_supp_or_ksft_skip() +{ + local nsname + + setup_ns nsname + ip netns exec "${nsname}" sh -c "echo 1 > /proc/sys/net/vrf/strict_mode" + ip -netns "${nsname}" link add vrf-100 type vrf table 100 + ip -netns "${nsname}" link set vrf-100 up + + if ! ip -netns "${nsname}" -6 route add fc00::1/128 \ + encap seg6local action End.DT6 vrftable 100 dev vrf-100 2>/dev/null; then + cleanup_ns "${nsname}" + echo "SKIP: SRv6 End.DT6 vrftable not supported" + exit "${ksft_skip}" + fi + + cleanup_ns "${nsname}" +} + modprobe vrf &>/dev/null if [ ! -e /proc/sys/net/vrf/strict_mode ]; then echo "SKIP: vrf sysctl does not exist" exit $ksft_skip fi +test_vrftable_supp_or_ksft_skip + cleanup &>/dev/null setup -- 2.43.0