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Miller" , Eric Dumazet , Paolo Abeni , Simon Horman Cc: Wei Wang Subject: [PATCH v15 net-next 08/10] selftests/net: psp: add dev-assoc data path test Date: Wed, 3 Jun 2026 16:59:37 -0700 Message-ID: <20260603235947.2986110-9-weibunny.kernel@gmail.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260603235947.2986110-1-weibunny.kernel@gmail.com> References: <20260603235947.2986110-1-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 _assoc_check_list() test that associates nk_guest with the PSP device and verifies the assoc-list is correctly populated. Add _data_basic_send_netkit_psp_assoc() which tests PSP data send through a netkit interface associated with a PSP device. The test associates nk_guest with the PSP device, then sends PSP-encrypted traffic from the guest namespace. Signed-off-by: Wei Wang --- tools/testing/selftests/drivers/net/psp.py | 72 ++++++++++++++++++++++ 1 file changed, 72 insertions(+) diff --git a/tools/testing/selftests/drivers/net/psp.py b/tools/testing/selftests/drivers/net/psp.py index 015af92c8d7b..f07d0becfede 100755 --- a/tools/testing/selftests/drivers/net/psp.py +++ b/tools/testing/selftests/drivers/net/psp.py @@ -19,6 +19,7 @@ from lib.py import ksft_variants, KsftNamedVariant from lib.py import KsftSkipEx from lib.py import NetDrvEpEnv, NetDrvContEnv from lib.py import NlError, PSPFamily +from lib.py import NetNSEnter from lib.py import bkg, rand_port, wait_port_listen from lib.py import ip @@ -602,6 +603,71 @@ def data_mss_adjust(cfg, ipver): _data_mss_adjust(cfg, ipver) +def _check_assoc_list(cfg, psp_dev_id, ifindex, nsid=None): + """Verify assoc-list contains device with given ifindex, no duplicates.""" + dev_info = cfg.pspnl.dev_get({'id': psp_dev_id}) + + ksft_true('assoc-list' in dev_info, + "No assoc-list in dev_get() response after association") + found = False + for assoc in dev_info['assoc-list']: + if assoc['ifindex'] != ifindex: + continue + if nsid is not None and assoc['nsid'] != nsid: + continue + ksft_eq(found, False, "Duplicate assoc entry found") + found = True + ksft_eq(found, True, + "Associated device not found in dev_get() response") + + +def _data_basic_send_netkit_psp_assoc(cfg, version, ipver): + """ + Test basic data send with netkit interface associated with PSP dev. + """ + _assoc_nk_guest(cfg) + + # Enter guest namespace (netns) to run PSP test + with NetNSEnter(cfg.netns.name): + cfg.pspnl = PSPFamily() + + sock = _make_psp_conn(cfg, version, ipver) + + rx_assoc = cfg.pspnl.rx_assoc({"version": version, + "dev-id": cfg.psp_dev_id, + "sock-fd": sock.fileno()}) + rx_key = rx_assoc['rx-key'] + tx_key = _spi_xchg(sock, rx_key) + + cfg.pspnl.tx_assoc({"dev-id": cfg.psp_dev_id, + "version": version, + "tx-key": tx_key, + "sock-fd": sock.fileno()}) + + data_len = _send_careful(cfg, sock, 100) + _check_data_rx(cfg, data_len) + _close_psp_conn(cfg, sock) + + +def _assoc_check_list(cfg): + """Test that assoc-list is correctly populated after dev-assoc.""" + _assoc_nk_guest(cfg) + _check_assoc_list(cfg, cfg.psp_dev_id, cfg.nk_guest_ifindex, + cfg.psp_dev_peer_nsid) + + +def _get_psp_ver_ip6_variants(): + for ver in range(4): + yield KsftNamedVariant(f"v{ver}_ip6", ver, "6") + + +@ksft_variants(_get_psp_ver_ip6_variants()) +def data_basic_send_netkit_psp_assoc(cfg, version, ipver): + """Test PSP data send via netkit with dev-assoc.""" + cfg.require_ipver(ipver) + _data_basic_send_netkit_psp_assoc(cfg, version, ipver) + + def _try_disassoc(cfg, psp_dev_id, ifindex, nsid=None): """Best-effort disassociate, ignoring errors if already removed.""" try: @@ -713,6 +779,12 @@ def main() -> None: cases = [data_basic_send, data_mss_adjust] + if has_cont: + cases += [ + _assoc_check_list, + data_basic_send_netkit_psp_assoc, + ] + ksft_run(cases=cases, globs=globals(), case_pfx={"dev_", "data_", "assoc_", "removal_"}, args=(cfg, )) -- 2.52.0