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Miller" , Eric Dumazet , Paolo Abeni , Simon Horman Cc: Wei Wang Subject: [PATCH v16 net-next 09/10] selftests/net: psp: add cross-namespace notification tests Date: Mon, 8 Jun 2026 16:31:17 -0700 Message-ID: <20260608233118.2694144-10-weibunny.kernel@gmail.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260608233118.2694144-1-weibunny.kernel@gmail.com> References: <20260608233118.2694144-1-weibunny.kernel@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Wei Wang Add tests that verify PSP notifications are delivered to listeners in associated namespaces: - _key_rotation_notify_multi_ns_netkit: triggers key rotation and verifies the notification is received in both main and guest namespaces - _dev_change_notify_multi_ns_netkit: triggers dev_set and verifies the dev_change notification is received in both namespaces Signed-off-by: Wei Wang --- tools/testing/selftests/drivers/net/psp.py | 59 +++++++++++++++++++++- 1 file changed, 58 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/drivers/net/psp.py b/tools/testing/selftests/drivers/net/psp.py index f07d0becfede..78682a425886 100755 --- a/tools/testing/selftests/drivers/net/psp.py +++ b/tools/testing/selftests/drivers/net/psp.py @@ -16,7 +16,7 @@ from lib.py import ksft_run, ksft_exit, ksft_pr from lib.py import ksft_true, ksft_eq, ksft_ne, ksft_gt, ksft_raises from lib.py import ksft_not_none from lib.py import ksft_variants, KsftNamedVariant -from lib.py import KsftSkipEx +from lib.py import KsftSkipEx, KsftFailEx from lib.py import NetDrvEpEnv, NetDrvContEnv from lib.py import NlError, PSPFamily from lib.py import NetNSEnter @@ -668,6 +668,61 @@ def data_basic_send_netkit_psp_assoc(cfg, version, ipver): _data_basic_send_netkit_psp_assoc(cfg, version, ipver) +def _key_rotation_notify_multi_ns_netkit(cfg): + """ Test key rotation notifications across multiple namespaces using netkit """ + _assoc_nk_guest(cfg) + + # Create listener in guest namespace; socket stays bound to that ns + with NetNSEnter(cfg.netns.name): + peer_pspnl = PSPFamily() + peer_pspnl.ntf_subscribe('use') + + # Create listener in main namespace + main_pspnl = PSPFamily() + main_pspnl.ntf_subscribe('use') + + # Trigger key rotation on the PSP device + cfg.pspnl.key_rotate({"id": cfg.psp_dev_id}) + + # Poll both sockets from main thread + for pspnl, label in [(main_pspnl, "main"), (peer_pspnl, "guest")]: + for ntf in pspnl.poll_ntf(duration=10): + if ntf['msg'].get('id') == cfg.psp_dev_id: + break + else: + raise KsftFailEx( + f"No key rotation notification received" + f" in {label} namespace") + + +def _dev_change_notify_multi_ns_netkit(cfg): + """ Test dev_change notifications across multiple namespaces using netkit """ + _assoc_nk_guest(cfg) + + # Create listener in guest namespace; socket stays bound to that ns + with NetNSEnter(cfg.netns.name): + peer_pspnl = PSPFamily() + peer_pspnl.ntf_subscribe('mgmt') + + # Create listener in main namespace + main_pspnl = PSPFamily() + main_pspnl.ntf_subscribe('mgmt') + + # Trigger dev_change by calling dev_set (notification is always sent) + cfg.pspnl.dev_set({'id': cfg.psp_dev_id, + 'psp-versions-ena': cfg.psp_info['psp-versions-cap']}) + + # Poll both sockets from main thread + for pspnl, label in [(main_pspnl, "main"), (peer_pspnl, "guest")]: + for ntf in pspnl.poll_ntf(duration=10): + if ntf['msg'].get('id') == cfg.psp_dev_id: + break + else: + raise KsftFailEx( + f"No dev_change notification received" + f" in {label} namespace") + + def _try_disassoc(cfg, psp_dev_id, ifindex, nsid=None): """Best-effort disassociate, ignoring errors if already removed.""" try: @@ -783,6 +838,8 @@ def main() -> None: cases += [ _assoc_check_list, data_basic_send_netkit_psp_assoc, + _key_rotation_notify_multi_ns_netkit, + _dev_change_notify_multi_ns_netkit, ] ksft_run(cases=cases, globs=globals(), -- 2.52.0