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dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.117.161 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.161; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.117.161) by SN1PEPF00036F42.mail.protection.outlook.com (10.167.248.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9456.9 via Frontend Transport; Wed, 24 Dec 2025 16:18:51 +0000 Received: from rnnvmail201.nvidia.com (10.129.68.8) by mail.nvidia.com (10.129.200.67) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Wed, 24 Dec 2025 08:18:43 -0800 Received: from shredder.lan (10.126.231.35) by rnnvmail201.nvidia.com (10.129.68.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Wed, 24 Dec 2025 08:18:39 -0800 From: Ido Schimmel To: CC: , , , , , , Ido Schimmel Subject: [RFC PATCH net-next 2/2] selftests: fib_tests: Add test cases for route lookup with oif Date: Wed, 24 Dec 2025 18:18:01 +0200 Message-ID: <20251224161801.824589-2-idosch@nvidia.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251224161801.824589-1-idosch@nvidia.com> References: <20251224161801.824589-1-idosch@nvidia.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: rnnvmail203.nvidia.com (10.129.68.9) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF00036F42:EE_|MN2PR12MB4096:EE_ X-MS-Office365-Filtering-Correlation-Id: 4c856e00-3baa-4f8e-4f8c-08de43082055 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|36860700013|1800799024|82310400026; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Dec 2025 16:18:51.3525 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4c856e00-3baa-4f8e-4f8c-08de43082055 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SN1PEPF00036F42.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR12MB4096 Test that both address families respect the oif parameter when a matching multipath route is found, regardless of the presence of a source address. Output without "ipv6: Honor oif when choosing nexthop for locally generated traffic": # ./fib_tests.sh -t "ipv4_mpath_oif ipv6_mpath_oif" IPv4 multipath oif test TEST: IPv4 multipath via first nexthop [ OK ] TEST: IPv4 multipath via second nexthop [ OK ] TEST: IPv4 multipath via first nexthop with source address [ OK ] TEST: IPv4 multipath via second nexthop with source address [ OK ] IPv6 multipath oif test TEST: IPv6 multipath via first nexthop [ OK ] TEST: IPv6 multipath via second nexthop [ OK ] TEST: IPv6 multipath via first nexthop with source address [FAIL] TEST: IPv6 multipath via second nexthop with source address [FAIL] Tests passed: 6 Tests failed: 2 Output with "ipv6: Honor oif when choosing nexthop for locally generated traffic": # ./fib_tests.sh -t "ipv4_mpath_oif ipv6_mpath_oif" IPv4 multipath oif test TEST: IPv4 multipath via first nexthop [ OK ] TEST: IPv4 multipath via second nexthop [ OK ] TEST: IPv4 multipath via first nexthop with source address [ OK ] TEST: IPv4 multipath via second nexthop with source address [ OK ] IPv6 multipath oif test TEST: IPv6 multipath via first nexthop [ OK ] TEST: IPv6 multipath via second nexthop [ OK ] TEST: IPv6 multipath via first nexthop with source address [ OK ] TEST: IPv6 multipath via second nexthop with source address [ OK ] Tests passed: 8 Tests failed: 0 Signed-off-by: Ido Schimmel --- tools/testing/selftests/net/fib_tests.sh | 108 ++++++++++++++++++++++- 1 file changed, 107 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh index a88f797c549a..8ae0adbcafe9 100755 --- a/tools/testing/selftests/net/fib_tests.sh +++ b/tools/testing/selftests/net/fib_tests.sh @@ -12,7 +12,7 @@ TESTS="unregister down carrier nexthop suppress ipv6_notify ipv4_notify \ ipv4_route_metrics ipv4_route_v6_gw rp_filter ipv4_del_addr \ ipv6_del_addr ipv4_mangle ipv6_mangle ipv4_bcast_neigh fib6_gc_test \ ipv4_mpath_list ipv6_mpath_list ipv4_mpath_balance ipv6_mpath_balance \ - fib6_ra_to_static" + ipv4_mpath_oif ipv6_mpath_oif fib6_ra_to_static" VERBOSE=0 PAUSE_ON_FAIL=no @@ -2776,6 +2776,110 @@ ipv6_mpath_balance_test() forwarding_cleanup } +ipv4_mpath_oif_test_common() +{ + local get_param=$1; shift + local expected_oif=$1; shift + local test_name=$1; shift + local tmp_file + + tmp_file=$(mktemp) + + for i in {1..100}; do + $IP route get 203.0.113.${i} $get_param >> "$tmp_file" + done + + [[ $(grep "$expected_oif" "$tmp_file" | wc -l) -eq 100 ]] + log_test $? 0 "$test_name" + + rm "$tmp_file" +} + +ipv4_mpath_oif_test() +{ + echo + echo "IPv4 multipath oif test" + + setup + + set -e + $IP link add dummy1 type dummy + $IP link set dev dummy1 up + $IP address add 192.0.2.1/28 dev dummy1 + $IP address add 192.0.2.17/32 dev lo + + $IP route add 203.0.113.0/24 \ + nexthop via 198.51.100.2 dev dummy0 \ + nexthop via 192.0.2.2 dev dummy1 + set +e + + ipv4_mpath_oif_test_common "oif dummy0" "dummy0" \ + "IPv4 multipath via first nexthop" + + ipv4_mpath_oif_test_common "oif dummy1" "dummy1" \ + "IPv4 multipath via second nexthop" + + ipv4_mpath_oif_test_common "oif dummy0 from 192.0.2.17" "dummy0" \ + "IPv4 multipath via first nexthop with source address" + + ipv4_mpath_oif_test_common "oif dummy1 from 192.0.2.17" "dummy1" \ + "IPv4 multipath via second nexthop with source address" + + cleanup +} + +ipv6_mpath_oif_test_common() +{ + local get_param=$1; shift + local expected_oif=$1; shift + local test_name=$1; shift + local tmp_file + + tmp_file=$(mktemp) + + for i in {1..100}; do + $IP route get 2001:db8:10::${i} $get_param >> "$tmp_file" + done + + [[ $(grep "$expected_oif" "$tmp_file" | wc -l) -eq 100 ]] + log_test $? 0 "$test_name" + + rm "$tmp_file" +} + +ipv6_mpath_oif_test() +{ + echo + echo "IPv6 multipath oif test" + + setup + + set -e + $IP link add dummy1 type dummy + $IP link set dev dummy1 up + $IP address add 2001:db8:2::1/64 dev dummy1 + $IP address add 2001:db8:100::1/128 dev lo + + $IP route add 2001:db8:10::/64 \ + nexthop via 2001:db8:1::2 dev dummy0 \ + nexthop via 2001:db8:2::2 dev dummy1 + set +e + + ipv6_mpath_oif_test_common "oif dummy0" "dummy0" \ + "IPv6 multipath via first nexthop" + + ipv6_mpath_oif_test_common "oif dummy1" "dummy1" \ + "IPv6 multipath via second nexthop" + + ipv6_mpath_oif_test_common "oif dummy0 from 2001:db8:100::1" "dummy0" \ + "IPv6 multipath via first nexthop with source address" + + ipv6_mpath_oif_test_common "oif dummy1 from 2001:db8:100::1" "dummy1" \ + "IPv6 multipath via second nexthop with source address" + + cleanup +} + ################################################################################ # usage @@ -2861,6 +2965,8 @@ do ipv6_mpath_list) ipv6_mpath_list_test;; ipv4_mpath_balance) ipv4_mpath_balance_test;; ipv6_mpath_balance) ipv6_mpath_balance_test;; + ipv4_mpath_oif) ipv4_mpath_oif_test;; + ipv6_mpath_oif) ipv6_mpath_oif_test;; fib6_ra_to_static) fib6_ra_to_static;; help) echo "Test names: $TESTS"; exit 0;; -- 2.52.0