From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f44.google.com (mail-wm1-f44.google.com [209.85.128.44]) (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 28A10313523 for ; Sat, 18 Apr 2026 16:34:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776530069; cv=none; b=eEurPis+S2xM64joKlT7solzVTKWsYqoQmz4MhRB+7qQt2KzNrsdF/u7s26Ah9iRKHxLxHrdv1SsUWpi93CY/HenLNYL+II6GQ8zf0tbL6BahOCSFJtYgXfQ3JO5rYMqjBBlhEKe5knlZm1ETszezRBPagTiHJ8ZEbR/ktSeIgw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776530069; c=relaxed/simple; bh=RGvRpXFf4soaxO7fUpHuq0CUZm8/gZT9nUyQEdeAygE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hiu5uszLOKVECRYRQvoj9Rjp3PQdMNtNKVUfOo9XXLlm5f7fgcawo0Yskv67H0wYrBzi0XXZYEw8W9paewDVgaQwD1vuiKJyWWNUvXTz2V5qWUvBUbdJk0B6rNri8JTPALeOref47o7vGHDUPDkG+51Qd9iTMgzydgEzG1pJN4Q= 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=JjqAnBMv; arc=none smtp.client-ip=209.85.128.44 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="JjqAnBMv" Received: by mail-wm1-f44.google.com with SMTP id 5b1f17b1804b1-4887f49ec5aso21304855e9.1 for ; Sat, 18 Apr 2026 09:34:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1776530065; x=1777134865; 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=uguiSA9xVG8SCE4+kERAOLrC3CLUPwMeYK7rWWVQ3nI=; b=JjqAnBMvz5RLpvdSGUPsO0g/irr9qBntDVIOOG3PkptXPTCaPlURHeYE2zjjghKz32 BDaqp0AD7EG//5EQ3inUw7t8PagC6F4YxpgvDHPevVSjKg6kh3HMz5tf1SIzajgQEwkL U3yEyQGMXA7GuAp6vRFv5IIfFhZ5erfmXJeD8Z/tv7Q5Jykiw5jlqkeW5KAXEz5upS5P 748PDW6vBtXoIB+bp3Js2fYb4d4DAQ/X15ExKxRdHW5JekVZMuqMYAvbPcEOqbz4BDpS PnX6q2kusQTn/Rx5rsr37rzxSbmvvtnYBfiVQa2QDbjhK+CPKQWIXH3ypbbc6COfRhrC tdIg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1776530065; x=1777134865; 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=uguiSA9xVG8SCE4+kERAOLrC3CLUPwMeYK7rWWVQ3nI=; b=Vw/j9CtGwx1dXVg0wWfwv3sgspsfUfA+1qmq2TfWkfJ+kAZr3jQGUq9KbMD76lwAwL GA6BSy4hj7upljuQeFMtOPjzxNVFuMEm0/NVKEWOw4Ki3pG9S/YvRGsPpRRBsmlsiH6Z 8we+2sifU5IbFaeXpPPuJxdro6U65T20XHVbFoDRPucgiwLzr0Gjl516DhjySsgpruRi juR2vt/eB/ADpwH/DglzLHZkko2yH8XXza70Bh7eYdhm+JTrp2njgviS34uA3PzJmpK6 0a+ns2Zy6P9yH+owB11MoYcfGLJSF+97F4mgqKEFdqrIzXWxqbgl0Q2WdXHauNactEiV cZig== X-Forwarded-Encrypted: i=1; AFNElJ+kJSE3qXFIHJ5Rb+AANnFi49WXwms5aB+C7ivNRxSqmzYFFe5olrR9/RUeRcClolpECpVQF9ON7qELb7I=@vger.kernel.org X-Gm-Message-State: AOJu0Yy9+yb8cJ09qtKtTrNuPaTm0pItroqLfiN8t9QfUj47bDGnwwbp g8s7NXXPbOx0Gw2J+iBFAQdNfBHhDQgOYCW+QipZyiGqhhJNO1CXiL42 X-Gm-Gg: AeBDiev9hfxwycdV4UOApPpHJux1UatJbXDtZEUYjJISTlT9Za7PPEG0LGo2aLnloFn 9IGoHnk0byCU3GeqXs3NtbvwesvdnulfQib7zztTmSoIPCfcK/DjAzG27dMDqsjTghuRIx9Y81Q PnjKVLMa48xHpenVu2KO1GnCA+gToIJOCTKb4uTvMzpJqT9L/Rf5kprIbcVTULPbaEKg48Q2sOg TS4SSzVdEK12U8IHWyLusEzvpzzrlmKafr0sZk2r+XTd/HRXJNjm+rcgBWT6Is8nGN4W68AkupH Y713oMpV1wlzwhcmXqxmHSvP1DrQ7m1gc45JNXQgHqyKl+1CFsSS3sxF7H62YbIlxrkhJO8cAwf ha7S1243pNQsN5cxw83o9Aq0dU6aHfj1wzXsHSdYJ851hSDtzfV7bEKNTkC7gdUiMlQrO9mkaBB 25wBCKwIFavzHX6tspIv9LKF1iXz7VVJL1qd50djU= X-Received: by 2002:a05:600c:31a9:b0:489:95:3dd2 with SMTP id 5b1f17b1804b1-48900953e9bmr30685445e9.8.1776530065164; Sat, 18 Apr 2026 09:34:25 -0700 (PDT) Received: from localhost ([2a01:4b00:d036:ae00:e054:93f2:97bf:84c6]) by smtp.gmail.com with UTF8SMTPSA id ffacd0b85a97d-43fe4e4d5b1sm15836381f8f.30.2026.04.18.09.34.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 18 Apr 2026 09:34:24 -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 v8 6/6] selftests/liveupdate: add test cases for LIVEUPDATE_SESSION_GET_NAME Date: Sat, 18 Apr 2026 17:28:23 +0100 Message-ID: <20260418163358.2304490-7-luca.boccassi@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260418163358.2304490-1-luca.boccassi@gmail.com> References: <20260418163358.2304490-1-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 Verify that the new LIVEUPDATE_SESSION_GET_NAME ioctl works as expected via new test cases in the existing liveupdate selftest. Signed-off-by: Luca Boccassi --- .../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 5e99af0cc6e9..c21354dc9b93 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 * @@ -427,4 +443,59 @@ 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