From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=209.85.214.197 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793989213; b=Coph9FAHlm2FRMUD31j2de2clHUPYBK74xA1L1jqorRVNwZgF7QIDPi7/86KNIeQARlr 24Y1zMVuCdgr664+nn+Jg+HGRWomJJQd/dOBi2nHyMix8kCKAWIxYwQjTglI5Z8iaMnwg 5Y/e8DPREPA0ugnLuv9uoItViVUWzhrQ8B5bmPiS+3sfiWsgyMUdVdbWtdBidHdPjSANs JHLotgJ4Go/lZ3jqiceDLg8wEXDkVGXiW67iyc/OA/PseIA8KJX/2ntcM1arekoIY2fvO cJjgQLXI9J9T9NSclhmrVGy8J2LM9Yd6FDHBcmlblqOiTkyQsLlwj/U1+bBTPxVSxeA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793989213; h=DMARC-Filter:Received:DKIM-Signature:X-Google-DKIM-Signature: X-Forwarded-Encrypted:X-Gm-Message-State:X-Received:Date:In-Reply-To: Mime-Version:References:X-Mailer:Message-ID:Subject:From:To:Cc: Content-Type; bh=H159Xsa5W2BfDgkwuWPP8unE3udyJHNIucLctlJNBk4=; b=3WieZobSdRhAh4Gc5znlcU1sJyqOu/IruQoZ1+u/orKIuIuO7EKpP72uL1PVOpf19Thl ihdrRUkGlkAI155VDAQx6SLkgrzFBA3YOXFPe1nydfuClkGSqWgPsbtTTDt0lkMQmw3d4 r3Yx7QahQZP9MBV+ylH/xXfsfOQJ9XbLFH4S4J2qhiA5VT2/lzrYl2GERTjLxm1RaxIkp WIZcv2Ces8rweqRKi5tsqAPAGqtYEOeHV9hdL+qxGNlqMZIYMfaHrfufD5V+r19zqQ0kE tEZ87fKKfglCp6Bz8ouD1WcT1EGiSaCfKNTW2vJr/S8b8Jxgq/sdY5ZOTRpWCOvnygg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=google.com; spf=pass smtp.mailfrom=flex--weiwan.bounces.google.com; dkim=pass header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20260707 header.b=jf8lg6tR; arc=none smtp.remote-ip=209.85.214.197 Received: from mail-pl1-f197.google.com (mail-pl1-f197.google.com [209.85.214.197]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 610F0606D810 for ; Fri, 6 Nov 2026 18:20:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 610F0606D810 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--weiwan.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20260707 header.b=jf8lg6tR Received: by mail-pl1-f197.google.com with SMTP id d9443c01a7336-2eb2437d752so14121295ad.0 for ; Fri, 06 Nov 2026 10:20:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20260707; t=1793989213; x=1794594013; darn=vger.kernel.org; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:from:to:cc:subject:date:message-id:reply-to :content-type; bh=H159Xsa5W2BfDgkwuWPP8unE3udyJHNIucLctlJNBk4=; b=jf8lg6tRKj8Cf4mSHKweKXugKQRn/iIxaNqq6B2eYUTaHtOB+9f3Qgi0Cnq33bENp8 freiKyov0PE6W9ME/vD8QynoxV55wnYeeq292+F9py7yM5yujU/Pg4BX3Z/nwab12EdP yAccXoL7um3wnzJqeeXgLiCEsrke3j/9EQELBhZRbNwoLROj6qHrHyX6zu3u8SNaKMp9 rF/OHvbF16/r9g6cZuZpGjC+5BV7wE4crWydLJNgaOn1vB3W4w2+o0/yZtsDmLObTGLt e8GS9h6ZMkz4Zj0Q/Dim89H33Lab/SvI35oIkF4Ilc7duScABKwvNiuuiXYi7pnCTCUj l2ZQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1793989213; x=1794594013; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=H159Xsa5W2BfDgkwuWPP8unE3udyJHNIucLctlJNBk4=; b=JJZ22nUFKXrlLQhEeFUP/C9e6pghAyTDgtzzk83SfqEaErOHm9wXAnG+SIDEfgHgW0 KCfso9T2OtR4qFdH153OcdZFuibzT7FP4vw9pYAMzAQhCkjO/m535n+tcNQGq1E07AtI mR8IcA51B4A7M6oY8Uy4eaws/V7e2IsPbzmn1kwa/VgOglwj9lz14X9y9ZYVnTQQFlRs Dci+8kV9KjnUSPrXH7PtnXqn+K9wJvrcExvEHnXoY2ya3wXumTOt6/XKE+EcakpOJBjy v7gsEswCLUc83cqfgU7Q/DM0noHn6M4pv6QX++AtWtw9N3jir6ZEPus0Cr13haS4o7hY bWJg== X-Forwarded-Encrypted: i=1; AL+hErGddLNQ4xSDyCEwaltyQMoqwkIjgkj4xU5SzpAd7ihwcR7cqiomV9C/iqtF44W3AgkA17s=@vger.kernel.org X-Gm-Message-State: APuU4Z/oGAjUMjTUkshla44m/2Vx7oobdTBv+Pg5zOXRyl0RNcxt5ycz JLVxVdEPwN+mGhGS2DsWLqgpm83Hycjo7sHiRjUgfAHZQvWd1qJgyoDbajITFRwiKWfOd5nIVHA bag+m7g== X-Received: from plfn14.prod.google.com ([2002:a17:902:e54e:b0:2ea:874c:627b]) (user=weiwan job=prod-delivery.src-stubby-dispatcher) by 2002:a17:902:f541:b0:2e2:c283:354f with SMTP id d9443c01a7336-2ed41854318mr39247615ad.28.1793989212559; Fri, 06 Nov 2026 10:20:12 -0800 (PST) Date: Fri, 6 Nov 2026 18:20:07 +0000 In-Reply-To: <20261106182007.374660-1-weiwan@google.com> X-Mailing-List: bpf@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list Mime-Version: 1.0 References: <20261106182007.374660-1-weiwan@google.com> X-Mailer: git-send-email 2.56.0.455.g6c5a503b38-goog Message-ID: <20261106182007.374660-3-weiwan@google.com> Subject: [PATCH net v3 2/2] selftests/net: psp: test bidirectional data transfer From: Wei Wang To: "David S . Miller" , Jakub Kicinski , Paolo Abeni , Andrew Lunn , Shuah Khan Cc: Simon Horman , Jakub Sitnicki , Daniel Zahka , Willem de Bruijn , netdev@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, Wei Wang Content-Type: text/plain; charset="UTF-8" _data_basic_send() and _data_basic_send_netkit_psp_assoc() currently only verify unidirectional data transmission from the test socket to psp_responder. As a result, they do not exercise the receive path for PSP-encrypted TCP data segments arriving at the test socket (such as packets redirected across a netkit interface associated via dev-assoc, which relies on SKB_EXT_PSP surviving packet scrubbing). Use the existing "data echo" command in psp_responder to verify that the test socket can also receive PSP-encrypted data from the peer in both _data_basic_send() and _data_basic_send_netkit_psp_assoc(). Signed-off-by: Wei Wang --- tools/testing/selftests/drivers/net/psp.py | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/tools/testing/selftests/drivers/net/psp.py b/tools/testing/selftests/drivers/net/psp.py index 473500901879..c114d2245135 100755 --- a/tools/testing/selftests/drivers/net/psp.py +++ b/tools/testing/selftests/drivers/net/psp.py @@ -120,6 +120,26 @@ def _check_data_rx(cfg, exp_len): ksft_eq(read_len, exp_len) +def _recv_careful(s, target, timeout=2): + """Read exactly target bytes, tolerating short reads""" + data = b'' + end = time.monotonic() + timeout + while time.monotonic() < end: + try: + data += s.recv(target - len(data), socket.MSG_DONTWAIT) + if len(data) == target: + return data + except BlockingIOError: + time.sleep(0.001) + raise KsftFailEx(f"short read, got {len(data)} of {target} bytes") + + +def _req_echo(cfg, s): + """Ask the peer to echo, and check the reply arrives intact""" + _send_with_ack(cfg, b'data echo\0') + ksft_eq(_recv_careful(s, 5), b'echo\0') + + def _check_data_outq(s, exp_len, force_wait=False): outq = 0 for _ in range(10): @@ -478,6 +498,7 @@ def _data_basic_send(cfg, version, ipver): data_len = _send_careful(cfg, s, 100) _check_data_rx(cfg, data_len) + _req_echo(cfg, s) _close_psp_conn(cfg, s) @@ -726,6 +747,7 @@ def _data_basic_send_netkit_psp_assoc(cfg, version, ipver): data_len = _send_careful(cfg, sock, 100) _check_data_rx(cfg, data_len) + _req_echo(cfg, sock) _close_psp_conn(cfg, sock) -- 2.56.0.455.g6c5a503b38-goog