From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 658E7337BBB; Tue, 21 Oct 2025 11:47:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761047257; cv=none; b=hRh4Nv66ghqPldkjCcAwM2n7YOZHNZ6SdmmG6tT4fLaIzKxqxLvC47oDlfXyXo2RwOPPu8W37IHRNpW9i/YQl2Vt4MtTh07eQTbkf4Qnw4WINDFzZBU/5VFy+ge/dXGfr36EHeJKdH2xJwDz+5epSya22LxTpdoD/zQkSNgmSHA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761047257; c=relaxed/simple; bh=77H7R88MI0EUUkshwD3/5/W86ZbXu7/L538OO/0/fLQ=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=nzb24C1xnhYocOGA21ubxsN0NlUOKnb8jc4FhJ+31LpgKPYSOWlzIwY+QPjNgJHEMUXXg1+4uIzrWUIT5BGhqijsG8HiHhu3c4/IySpLMMCEK1nE7u3D35y82Ax38iSt0R3RpSSgK2HEoUtVugTruv8Oq/LDwLNMUtZkF+7dteI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=WnzjS9pE; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="WnzjS9pE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DD60BC4CEFF; Tue, 21 Oct 2025 11:47:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1761047257; bh=77H7R88MI0EUUkshwD3/5/W86ZbXu7/L538OO/0/fLQ=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=WnzjS9pEWFOER24ezYjY6jxri9E7sRPgkGGsF9ENWf38HphQRpT7maU4ZZ6+8TvIo iklg56swuw0YwPhFraxbHVHo0UnOGXOEHFyBGKd2qLmPC1Q3wsww59Jj5bwur5457i i5tDWn6rD4TCyywNVPQJ/VMF8WPHm49+/syy8kY7v+pTOz5+PGi29gIj9+541jhpb9 ujH4rhsPYZm0y09LCOnZX1PxSRy1rRQroGCGvlg99z7AfpIKWs4hk5oA5VqtZebVqh nWKBsZY2zFxnRpKoJ5DrOsSo9aWjrvmw/mpHiUfLwdEMZdJAWinMbfuoPBP5V8a8lt tIM/sXnkYDeng== From: Christian Brauner Date: Tue, 21 Oct 2025 13:43:49 +0200 Subject: [PATCH RFC DRAFT 43/50] selftests/namespaces: ninth listns() test Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20251021-work-namespace-nstree-listns-v1-43-ad44261a8a5b@kernel.org> References: <20251021-work-namespace-nstree-listns-v1-0-ad44261a8a5b@kernel.org> In-Reply-To: <20251021-work-namespace-nstree-listns-v1-0-ad44261a8a5b@kernel.org> To: linux-fsdevel@vger.kernel.org, Josef Bacik , Jeff Layton Cc: Jann Horn , Mike Yuan , =?utf-8?q?Zbigniew_J=C4=99drzejewski-Szmek?= , Lennart Poettering , Daan De Meyer , Aleksa Sarai , Amir Goldstein , Tejun Heo , Johannes Weiner , Thomas Gleixner , Alexander Viro , Jan Kara , linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, bpf@vger.kernel.org, Eric Dumazet , Jakub Kicinski , netdev@vger.kernel.org, Arnd Bergmann , Christian Brauner X-Mailer: b4 0.15-dev-96507 X-Developer-Signature: v=1; a=openpgp-sha256; l=1852; i=brauner@kernel.org; h=from:subject:message-id; bh=77H7R88MI0EUUkshwD3/5/W86ZbXu7/L538OO/0/fLQ=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWR8L3xXHLm6+QXbd2eHip5czkeOV5qXHd2Yev/BrDu+8 dz9y54f6ShlYRDjYpAVU2RxaDcJl1vOU7HZKFMDZg4rE8gQBi5OAZjIu1pGhqP3d4krrczwYtBI PuMW8ZZtWePVTTzVe2NUHh6tYjkYkc3IMNtLO7dm7waPusrEGZXr1SqsHh7qUHymfHPj7N9s7A6 xfAA= X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 Test error cases for listns(). Signed-off-by: Christian Brauner --- tools/testing/selftests/namespaces/listns_test.c | 51 ++++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/tools/testing/selftests/namespaces/listns_test.c b/tools/testing/selftests/namespaces/listns_test.c index ddf4509d5cd6..eb44f50ab77a 100644 --- a/tools/testing/selftests/namespaces/listns_test.c +++ b/tools/testing/selftests/namespaces/listns_test.c @@ -602,4 +602,55 @@ TEST(listns_hierarchical_visibility) waitpid(pid, &status, 0); } +/* + * Test error cases for listns(). + */ +TEST(listns_error_cases) +{ + struct ns_id_req req = { + .size = sizeof(req), + .spare = 0, + .ns_id = 0, + .ns_type = 0, + .spare2 = 0, + .user_ns_id = 0, + }; + __u64 ns_ids[10]; + int ret; + + /* Test with invalid flags */ + ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0xFFFF); + if (ret >= 0 || errno == ENOSYS) { + if (errno != ENOSYS) { + TH_LOG("Warning: Expected EINVAL for invalid flags, got success"); + } + } else { + ASSERT_EQ(errno, EINVAL); + } + + /* Test with NULL ns_ids array */ + ret = sys_listns(&req, NULL, 10, 0); + if (ret >= 0) { + TH_LOG("Warning: Expected EFAULT for NULL array, got success"); + } + + /* Test with invalid spare field */ + req.spare = 1; + ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0); + if (ret >= 0 || errno == ENOSYS) { + if (errno != ENOSYS) { + TH_LOG("Warning: Expected EINVAL for non-zero spare, got success"); + } + } + req.spare = 0; + + /* Test with huge nr_ns_ids */ + ret = sys_listns(&req, ns_ids, 2000000, 0); + if (ret >= 0 || errno == ENOSYS) { + if (errno != ENOSYS) { + TH_LOG("Warning: Expected EOVERFLOW for huge count, got success"); + } + } +} + TEST_HARNESS_MAIN -- 2.47.3