From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f46.google.com (mail-wr1-f46.google.com [209.85.221.46]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9D1FA25228D for ; Fri, 17 Apr 2026 22:08:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.46 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776463726; cv=none; b=BKVFhXjXjQ+sExGv6ml6NaGzKrTobR+HhfUo+yEC4y/YLMAC9pGrsByeEKoOegq5zEo0lB+svsBqeUCGN8Vt1VmMEK2c0cQ8a/uwjb0mXAdfK1nYxR+0utYKndwQ7Q9ixaOrNMbAVMf55Q9grw4CkNDIqvafEybPAd+og0QQIG4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776463726; c=relaxed/simple; bh=/4c7r7F91F0imKplhhYGliRrWecgk0KduxmpvHtCsvE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fs+rYLNiWvlYbD+JOnF0texllGsuIJeQrtdbsoOea853QjBPgaDnC7736AQ8vV9lQMxJr99i7q0Mby+zGo4FWE7Uqx8KK4sCHBfnSO0gxRY/ZciRVlxoyOx4ru9TxGDcNNNu/5sWi6MEDTNMXIYyvE6u0ZhrfGbYpWIvg2zbnxM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=mvVLCUNr; arc=none smtp.client-ip=209.85.221.46 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="mvVLCUNr" Received: by mail-wr1-f46.google.com with SMTP id ffacd0b85a97d-43fe3e22e33so739588f8f.0 for ; Fri, 17 Apr 2026 15:08:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1776463721; x=1777068521; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Rthk+NSBRFXE+6mJljKG6U0ydJhpN840inxjjbjxMqs=; b=mvVLCUNrxvzc0nEF0Br8aC5LGtFF1VAtK6Qen30qnXy2QQzqyRL/QnVLu+zKp7PTz+ JEwjQuATf8DnZuX4jrcNSY2HB1JSizoPTQZ16a1QzDxrMZFykBGErhASkosbqmfktgUP 8eN1uskeAoLeY/AW2a0r10ydp+OTXDwOo9k45ebo0l5xcR1HSY1uGfj/L57ImKoQiQCQ 9g71j9eiOYuL1xmmZvKAG0ZP2bKcS4eIAgOue3uCJD1TblwA7Dky50xQ3NU+NVbF3bI2 e30xfiZeERwW9crjDLTfNGVT3DHAUNJnkNrdUY+WOD5GROKIWkeYjPOzmjmsU3TgHegk VgcA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1776463721; x=1777068521; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=Rthk+NSBRFXE+6mJljKG6U0ydJhpN840inxjjbjxMqs=; b=qFphdOIJa160H8n1ptl3jAqLFC5HYJ4CNzzY0uSNnG8NQWC1+3S+5Sk9RFTrdo0elC Akf4tIu2f8S3tL9B3tPQGm5olTbFDrnS4m1XBK39DwcWYT2fPIuEPm+qdjIHEO3ep7Kp 7LnmfAuXI/vwGtTf/WpsmjwyrCCN3pIJ999cFk+QGS3GRDautoxPdEvMyS3Goyl1IPhk mC538h6SBqZjzeTQr1zpY1m6JFmO/cgKKYEIKJXXEM6Ykq1CsH5xYlTjN1sLfkCMEPeb v0JOh5CmcuFsz6UYvP+H3LKo3TLzrTFeitPZMQcWlXra4dt4kVAD0JKVOTcU0ZXCF2Mk OeQg== X-Forwarded-Encrypted: i=1; AFNElJ9p6RIUuWs1hIsc95rrSoKHtaQ3F78bfBowUsOY379ec3n+dij5F/2zINhGL+6HH+6nkYkvOkBaTTW1LvU=@vger.kernel.org X-Gm-Message-State: AOJu0YwWZzbiaYQgNLaCUbiXT7pZSa0dx7POJD0ygvyO+sx2VlHan5dh AFP1ytUjs0waJw5ze9+SlA0rGhI7PwEwKBgx2N4ufDdNWsuqItuZiyuI X-Gm-Gg: AeBDievJBoU7H4Jav0gUquJYapLH3TxOL69H1TSmg+e7h9BTsTn+/P1hsaQTxwGrSvu 7s73ZfMYS/2AsQosNcc7tyKCkXqM1WWOpZTsJelTfneRsjzbkWulFqOBoLU+74SA/EK0zrteGp0 r0EBaKhjPqG8Z1AiVjEi0+29M8mXw1fG8S+QnFG0viytIxshOdjLW0X2ya/ifZdsUJMSCcrmuGS o1/ebvkYwgWamEIgh7K9K+XjctRW1CMJU/hpcMDMSx1kqaQVLSQr2bMFwQJFfp/uaw2ZiYzgcqE briwFWIQNDn+YjsoZsyEZ3NGV5KkCKuX4lwkLhPjELnPH5jpbrS+spS7hMtozWPfbMVLPO/cRXD YzPL/b8bbVK11wxcT+t7fKqBD1AdxkMI6Z1ILyqdY+aKIBebf9zj5srzXhdbO9KdaJ/AJ9qBbP/ OqIyf1e1w6kic49Do/NPU261/yFHmkFeEPfKZW/80= X-Received: by 2002:a05:6000:2dc6:b0:43f:dc54:9493 with SMTP id ffacd0b85a97d-43fe3ddcc21mr7224667f8f.21.1776463721326; Fri, 17 Apr 2026 15:08:41 -0700 (PDT) Received: from localhost ([2a01:4b00:d036:ae00:9586:30a1:a0a6:f076]) by smtp.gmail.com with UTF8SMTPSA id ffacd0b85a97d-43fe4dc26a3sm8270944f8f.15.2026.04.17.15.08.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Apr 2026 15:08:40 -0700 (PDT) From: luca.boccassi@gmail.com To: kexec@lists.infradead.org Cc: linux-mm@kvack.org, graf@amazon.com, rppt@kernel.org, pasha.tatashin@soleen.com, pratyush@kernel.org, brauner@kernel.org, linux-kernel@vger.kernel.org, Luca Boccassi Subject: [PATCH v5 4/4] selftests/liveupdate: add test cases for LIVEUPDATE_SESSION_GET_NAME Date: Fri, 17 Apr 2026 23:05:45 +0100 Message-ID: <20260417220831.1934945-4-luca.boccassi@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260417220831.1934945-1-luca.boccassi@gmail.com> References: <20260417220831.1934945-1-luca.boccassi@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Luca Boccassi Signed-off-by: Luca Boccassi --- v5: merge with LUO_SESSION_MAGIC series as they both change the same unit test file, to avoid merge conflicts split into separate patch .../testing/selftests/liveupdate/liveupdate.c | 71 +++++++++++++++++++ 1 file changed, 71 insertions(+) diff --git a/tools/testing/selftests/liveupdate/liveupdate.c b/tools/testing/selftests/liveupdate/liveupdate.c index d132b4685f767..f81201b363cc1 100644 --- a/tools/testing/selftests/liveupdate/liveupdate.c +++ b/tools/testing/selftests/liveupdate/liveupdate.c @@ -105,6 +105,22 @@ static int create_session(int lu_fd, const char *name) return args.fd; } +/* Helper function to get a session name via ioctl. */ +static int get_session_name(int session_fd, char *name, size_t name_len) +{ + struct liveupdate_session_get_name args = {}; + + args.size = sizeof(args); + + if (ioctl(session_fd, LIVEUPDATE_SESSION_GET_NAME, &args)) + return -errno; + + strncpy(name, (char *)args.name, name_len - 1); + name[name_len - 1] = '\0'; + + return 0; +} + /* * Test Case: Create Duplicate Session * @@ -385,4 +401,59 @@ TEST_F(liveupdate_device, session_fstat) ASSERT_EQ(close(session_fd2), 0); } +/* + * Test Case: Get Session Name + * + * Verifies that the full session name can be retrieved from a session file + * descriptor via ioctl. + */ +TEST_F(liveupdate_device, get_session_name) +{ + char name_buf[LIVEUPDATE_SESSION_NAME_LENGTH] = {}; + const char *session_name = "get-name-test-session"; + int session_fd; + + self->fd1 = open(LIVEUPDATE_DEV, O_RDWR); + if (self->fd1 < 0 && errno == ENOENT) + SKIP(return, "%s does not exist", LIVEUPDATE_DEV); + ASSERT_GE(self->fd1, 0); + + session_fd = create_session(self->fd1, session_name); + ASSERT_GE(session_fd, 0); + + ASSERT_EQ(get_session_name(session_fd, name_buf, sizeof(name_buf)), 0); + ASSERT_STREQ(name_buf, session_name); + + ASSERT_EQ(close(session_fd), 0); +} + +/* + * Test Case: Get Session Name at Maximum Length + * + * Verifies that a session name using the full LIVEUPDATE_SESSION_NAME_LENGTH + * (minus the null terminator) can be correctly retrieved. + */ +TEST_F(liveupdate_device, get_session_name_max_length) +{ + char name_buf[LIVEUPDATE_SESSION_NAME_LENGTH] = {}; + char long_name[LIVEUPDATE_SESSION_NAME_LENGTH]; + int session_fd; + + memset(long_name, 'A', sizeof(long_name) - 1); + long_name[sizeof(long_name) - 1] = '\0'; + + self->fd1 = open(LIVEUPDATE_DEV, O_RDWR); + if (self->fd1 < 0 && errno == ENOENT) + SKIP(return, "%s does not exist", LIVEUPDATE_DEV); + ASSERT_GE(self->fd1, 0); + + session_fd = create_session(self->fd1, long_name); + ASSERT_GE(session_fd, 0); + + ASSERT_EQ(get_session_name(session_fd, name_buf, sizeof(name_buf)), 0); + ASSERT_STREQ(name_buf, long_name); + + ASSERT_EQ(close(session_fd), 0); +} + TEST_HARNESS_MAIN -- 2.47.3