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Mon, 23 Mar 2026 05:36:56 -0700 From: Cosmin Ratiu To: CC: Sabrina Dubroca , Andrew Lunn , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Shuah Khan , , Cosmin Ratiu , Dragos Tatulea Subject: [PATCH net v5 1/3] selftests: Migrate nsim-only MACsec tests to Python Date: Mon, 23 Mar 2026 14:36:31 +0200 Message-ID: <20260323123633.756163-2-cratiu@nvidia.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260323123633.756163-1-cratiu@nvidia.com> References: <20260323123633.756163-1-cratiu@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: rnnvmail201.nvidia.com (10.129.68.8) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ1PEPF000026C3:EE_|CH3PR12MB8902:EE_ X-MS-Office365-Filtering-Correlation-Id: 2629916b-cdb3-44e3-58d2-08de88d8e8eb X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700016|376014|1800799024|82310400026|22082099003|56012099003|18002099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230040)(36860700016)(376014)(1800799024)(82310400026)(22082099003)(56012099003)(18002099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: HrG0Qf4q17pEdQ9qZ3d2NvkS5rjjU4rP01EVA8aipoFS6es9Jak4+6oqBEvRriOiQqaTZS4g657Y4a36e2xqsJwHDljsgMReerxSN7DVsAgr7P46hcUkdkPc61FRb/gQJkUbxBEUvzXYLtgbJA//cjZT9oXjF6rzt/QfM/zXFZLCMd97WBVmDqGT69Z6ChfSs/Ehic0BYfgsVxYhJXc+ETg0tyoQC+mNSYx1V1LGwa06WfM0+aOnYfel/pljCaLXmGo/jNx3Ra7uWsSABdBiqmj9GLp3Q6OzRWuq6fvf5mgsDSExdQeXdp5hYCLA1vWvKbfra6cJ7nNtitRuo8e+q4MkX18s04/TfKwTL7V5Ypgqw4v0c8r5yDTDlKnAo6/8r3fl12hJ/cuSZu3bTOqW7+Ayg4MkLm3atbCZY7K/EuLqHssuD/RJK4xWVQ83aa+R X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Mar 2026 12:37:13.3935 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2629916b-cdb3-44e3-58d2-08de88d8e8eb X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF000026C3.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB8902 Move MACsec offload API and ethtool feature tests from tools/testing/selftests/drivers/net/netdevsim/macsec-offload.sh to tools/testing/selftests/drivers/net/macsec.py using the NetDrvEnv framework so tests can run against both netdevsim (default) and real hardware (NETIF=ethX). As some real hardware requires macsec to use encryption, add that to the tests. Netdevsim-specific limit checks (max SecY, max RX SC) were moved into separate test cases to avoid failures on real hardware. Finally, MACSEC was added as a config option to drivers/net/config. Signed-off-by: Cosmin Ratiu --- tools/testing/selftests/drivers/net/Makefile | 1 + tools/testing/selftests/drivers/net/config | 1 + tools/testing/selftests/drivers/net/macsec.py | 179 ++++++++++++++++++ .../selftests/drivers/net/netdevsim/Makefile | 1 - .../drivers/net/netdevsim/macsec-offload.sh | 117 ------------ 5 files changed, 181 insertions(+), 118 deletions(-) create mode 100755 tools/testing/selftests/drivers/net/macsec.py delete mode 100755 tools/testing/selftests/drivers/net/netdevsim/macsec-offload.sh diff --git a/tools/testing/selftests/drivers/net/Makefile b/tools/testing/selftests/drivers/net/Makefile index 8154d6d429d3..5e045dde0273 100644 --- a/tools/testing/selftests/drivers/net/Makefile +++ b/tools/testing/selftests/drivers/net/Makefile @@ -13,6 +13,7 @@ TEST_GEN_FILES := \ TEST_PROGS := \ gro.py \ hds.py \ + macsec.py \ napi_id.py \ napi_threaded.py \ netpoll_basic.py \ diff --git a/tools/testing/selftests/drivers/net/config b/tools/testing/selftests/drivers/net/config index 77ccf83d87e0..d4b31a317c09 100644 --- a/tools/testing/selftests/drivers/net/config +++ b/tools/testing/selftests/drivers/net/config @@ -3,6 +3,7 @@ CONFIG_DEBUG_INFO_BTF=y CONFIG_DEBUG_INFO_BTF_MODULES=n CONFIG_INET_PSP=y CONFIG_IPV6=y +CONFIG_MACSEC=m CONFIG_NETCONSOLE=m CONFIG_NETCONSOLE_DYNAMIC=y CONFIG_NETCONSOLE_EXTENDED_LOG=y diff --git a/tools/testing/selftests/drivers/net/macsec.py b/tools/testing/selftests/drivers/net/macsec.py new file mode 100755 index 000000000000..a17b9f7ef584 --- /dev/null +++ b/tools/testing/selftests/drivers/net/macsec.py @@ -0,0 +1,179 @@ +#!/usr/bin/env python3 +# SPDX-License-Identifier: GPL-2.0 + +"""MACsec tests.""" + +import os + +from lib.py import ksft_run, ksft_exit, ksft_eq, ksft_raises +from lib.py import CmdExitFailure, KsftSkipEx +from lib.py import NetDrvEpEnv +from lib.py import cmd, ip, defer, ethtool + +# Unique prefix per run to avoid collisions in the shared netns. +# Keep it short: IFNAMSIZ is 16 (incl. NUL), and VLAN names append ".". +MACSEC_PFX = f"ms{os.getpid()}_" + + +def _macsec_name(idx=0): + return f"{MACSEC_PFX}{idx}" + + +def _get_macsec_offload(dev): + """Returns macsec offload mode string from ip -d link show.""" + info = ip(f"-d link show dev {dev}", json=True)[0] + return info.get("linkinfo", {}).get("info_data", {}).get("offload") + + +def _require_ip_macsec_offload(): + """SKIP if local iproute2 doesn't understand 'ip macsec offload'.""" + out = cmd("ip macsec help", fail=False) + if "offload" not in out.stdout + out.stderr: + raise KsftSkipEx("iproute2 too old, missing macsec offload") + + +def _require_macsec_offload(cfg): + """SKIP if local device doesn't support macsec-hw-offload.""" + _require_ip_macsec_offload() + try: + feat = ethtool(f"-k {cfg.ifname}", json=True)[0] + except (CmdExitFailure, IndexError) as e: + raise KsftSkipEx( + f"can't query features: {e}") from e + if not feat.get("macsec-hw-offload", {}).get("active"): + raise KsftSkipEx("macsec-hw-offload not supported") + + +def test_offload_api(cfg) -> None: + """MACsec offload API: create SecY, add SA/rx, toggle offload.""" + + _require_macsec_offload(cfg) + ms0 = _macsec_name(0) + ms1 = _macsec_name(1) + ms2 = _macsec_name(2) + + # Create 3 SecY with offload + ip(f"link add link {cfg.ifname} {ms0} type macsec " + f"port 4 encrypt on offload mac") + defer(ip, f"link del {ms0}") + + ip(f"link add link {cfg.ifname} {ms1} type macsec " + f"address aa:bb:cc:dd:ee:ff port 5 encrypt on offload mac") + defer(ip, f"link del {ms1}") + + ip(f"link add link {cfg.ifname} {ms2} type macsec " + f"sci abbacdde01020304 encrypt on offload mac") + defer(ip, f"link del {ms2}") + + # Add TX SA + ip(f"macsec add {ms0} tx sa 0 pn 1024 on " + "key 01 12345678901234567890123456789012") + + # Add RX SC + SA + ip(f"macsec add {ms0} rx port 1234 address 1c:ed:de:ad:be:ef") + ip(f"macsec add {ms0} rx port 1234 address 1c:ed:de:ad:be:ef " + "sa 0 pn 1 on key 00 0123456789abcdef0123456789abcdef") + + # Can't disable offload when SAs are configured + with ksft_raises(CmdExitFailure): + ip(f"link set {ms0} type macsec offload off") + with ksft_raises(CmdExitFailure): + ip(f"macsec offload {ms0} off") + + # Toggle offload via rtnetlink on SA-free device + ip(f"link set {ms2} type macsec offload off") + ip(f"link set {ms2} type macsec encrypt on offload mac") + + # Toggle offload via genetlink + ip(f"macsec offload {ms2} off") + ip(f"macsec offload {ms2} mac") + + +def test_max_secy(cfg) -> None: + """nsim-only test for max number of SecYs.""" + + cfg.require_nsim() + _require_ip_macsec_offload() + ms0 = _macsec_name(0) + ms1 = _macsec_name(1) + ms2 = _macsec_name(2) + ms3 = _macsec_name(3) + + ip(f"link add link {cfg.ifname} {ms0} type macsec " + f"port 4 encrypt on offload mac") + defer(ip, f"link del {ms0}") + + ip(f"link add link {cfg.ifname} {ms1} type macsec " + f"address aa:bb:cc:dd:ee:ff port 5 encrypt on offload mac") + defer(ip, f"link del {ms1}") + + ip(f"link add link {cfg.ifname} {ms2} type macsec " + f"sci abbacdde01020304 encrypt on offload mac") + defer(ip, f"link del {ms2}") + with ksft_raises(CmdExitFailure): + ip(f"link add link {cfg.ifname} {ms3} " + f"type macsec port 8 encrypt on offload mac") + + +def test_max_sc(cfg) -> None: + """nsim-only test for max number of SCs.""" + + cfg.require_nsim() + _require_ip_macsec_offload() + ms0 = _macsec_name(0) + + ip(f"link add link {cfg.ifname} {ms0} type macsec " + f"port 4 encrypt on offload mac") + defer(ip, f"link del {ms0}") + ip(f"macsec add {ms0} rx port 1234 address 1c:ed:de:ad:be:ef") + with ksft_raises(CmdExitFailure): + ip(f"macsec add {ms0} rx port 1235 address 1c:ed:de:ad:be:ef") + + +def test_offload_state(cfg) -> None: + """Offload state reflects configuration changes.""" + + _require_macsec_offload(cfg) + ms0 = _macsec_name(0) + + # Create with offload on + ip(f"link add link {cfg.ifname} {ms0} type macsec " + f"encrypt on offload mac") + cleanup = defer(ip, f"link del {ms0}") + + ksft_eq(_get_macsec_offload(ms0), "mac", + "created with offload: should be mac") + + ip(f"link set {ms0} type macsec offload off") + ksft_eq(_get_macsec_offload(ms0), "off", + "offload disabled: should be off") + + ip(f"link set {ms0} type macsec encrypt on offload mac") + ksft_eq(_get_macsec_offload(ms0), "mac", + "offload re-enabled: should be mac") + + # Delete and recreate without offload + cleanup.exec() + ip(f"link add link {cfg.ifname} {ms0} type macsec") + defer(ip, f"link del {ms0}") + ksft_eq(_get_macsec_offload(ms0), "off", + "created without offload: should be off") + + ip(f"link set {ms0} type macsec encrypt on offload mac") + ksft_eq(_get_macsec_offload(ms0), "mac", + "offload enabled after create: should be mac") + + +def main() -> None: + """Main program.""" + with NetDrvEpEnv(__file__) as cfg: + ksft_run([test_offload_api, + test_max_secy, + test_max_sc, + test_offload_state, + ], args=(cfg,)) + ksft_exit() + + +if __name__ == "__main__": + main() diff --git a/tools/testing/selftests/drivers/net/netdevsim/Makefile b/tools/testing/selftests/drivers/net/netdevsim/Makefile index 1a228c5430f5..9808c2fbae9e 100644 --- a/tools/testing/selftests/drivers/net/netdevsim/Makefile +++ b/tools/testing/selftests/drivers/net/netdevsim/Makefile @@ -11,7 +11,6 @@ TEST_PROGS := \ fib.sh \ fib_notifications.sh \ hw_stats_l3.sh \ - macsec-offload.sh \ nexthop.sh \ peer.sh \ psample.sh \ diff --git a/tools/testing/selftests/drivers/net/netdevsim/macsec-offload.sh b/tools/testing/selftests/drivers/net/netdevsim/macsec-offload.sh deleted file mode 100755 index 98033e6667d2..000000000000 --- a/tools/testing/selftests/drivers/net/netdevsim/macsec-offload.sh +++ /dev/null @@ -1,117 +0,0 @@ -#!/bin/bash -# SPDX-License-Identifier: GPL-2.0-only - -source ethtool-common.sh - -NSIM_NETDEV=$(make_netdev) -MACSEC_NETDEV=macsec_nsim - -set -o pipefail - -if ! ethtool -k $NSIM_NETDEV | grep -q 'macsec-hw-offload: on'; then - echo "SKIP: netdevsim doesn't support MACsec offload" - exit 4 -fi - -if ! ip link add link $NSIM_NETDEV $MACSEC_NETDEV type macsec offload mac 2>/dev/null; then - echo "SKIP: couldn't create macsec device" - exit 4 -fi -ip link del $MACSEC_NETDEV - -# -# test macsec offload API -# - -ip link add link $NSIM_NETDEV "${MACSEC_NETDEV}" type macsec port 4 offload mac -check $? - -ip link add link $NSIM_NETDEV "${MACSEC_NETDEV}2" type macsec address "aa:bb:cc:dd:ee:ff" port 5 offload mac -check $? - -ip link add link $NSIM_NETDEV "${MACSEC_NETDEV}3" type macsec sci abbacdde01020304 offload mac -check $? - -ip link add link $NSIM_NETDEV "${MACSEC_NETDEV}4" type macsec port 8 offload mac 2> /dev/null -check $? '' '' 1 - -ip macsec add "${MACSEC_NETDEV}" tx sa 0 pn 1024 on key 01 12345678901234567890123456789012 -check $? - -ip macsec add "${MACSEC_NETDEV}" rx port 1234 address "1c:ed:de:ad:be:ef" -check $? - -ip macsec add "${MACSEC_NETDEV}" rx port 1234 address "1c:ed:de:ad:be:ef" sa 0 pn 1 on \ - key 00 0123456789abcdef0123456789abcdef -check $? - -ip macsec add "${MACSEC_NETDEV}" rx port 1235 address "1c:ed:de:ad:be:ef" 2> /dev/null -check $? '' '' 1 - -# can't disable macsec offload when SAs are configured -ip link set "${MACSEC_NETDEV}" type macsec offload off 2> /dev/null -check $? '' '' 1 - -ip macsec offload "${MACSEC_NETDEV}" off 2> /dev/null -check $? '' '' 1 - -# toggle macsec offload via rtnetlink -ip link set "${MACSEC_NETDEV}2" type macsec offload off -check $? - -ip link set "${MACSEC_NETDEV}2" type macsec offload mac -check $? - -# toggle macsec offload via genetlink -ip macsec offload "${MACSEC_NETDEV}2" off -check $? - -ip macsec offload "${MACSEC_NETDEV}2" mac -check $? - -for dev in ${MACSEC_NETDEV}{,2,3} ; do - ip link del $dev - check $? -done - - -# -# test ethtool features when toggling offload -# - -ip link add link $NSIM_NETDEV $MACSEC_NETDEV type macsec offload mac -TMP_FEATS_ON_1="$(ethtool -k $MACSEC_NETDEV)" - -ip link set $MACSEC_NETDEV type macsec offload off -TMP_FEATS_OFF_1="$(ethtool -k $MACSEC_NETDEV)" - -ip link set $MACSEC_NETDEV type macsec offload mac -TMP_FEATS_ON_2="$(ethtool -k $MACSEC_NETDEV)" - -[ "$TMP_FEATS_ON_1" = "$TMP_FEATS_ON_2" ] -check $? - -ip link del $MACSEC_NETDEV - -ip link add link $NSIM_NETDEV $MACSEC_NETDEV type macsec -check $? - -TMP_FEATS_OFF_2="$(ethtool -k $MACSEC_NETDEV)" -[ "$TMP_FEATS_OFF_1" = "$TMP_FEATS_OFF_2" ] -check $? - -ip link set $MACSEC_NETDEV type macsec offload mac -check $? - -TMP_FEATS_ON_3="$(ethtool -k $MACSEC_NETDEV)" -[ "$TMP_FEATS_ON_1" = "$TMP_FEATS_ON_3" ] -check $? - - -if [ $num_errors -eq 0 ]; then - echo "PASSED all $((num_passes)) checks" - exit 0 -else - echo "FAILED $num_errors/$((num_errors+num_passes)) checks" - exit 1 -fi -- 2.53.0