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 E60B231579F; Fri, 24 Oct 2025 10:56:48 +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=1761303409; cv=none; b=OBFK6oTvcDlISfqx1JDup/XnGr+m2WlmNsb8k8gPCyZG0PCu7DEnqUh7H7riM5nippi2zcI3VvnTqa8QCRE7yx4xWTMkuOaMFNWEStCJBeXtxzQ3FUZqRrU4FicY834E7ifl7S2acD8CR+6Lsm8MqjHZRZ/JsHf4qw9xjisDheo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761303409; c=relaxed/simple; bh=EesZuqsIPfrlBbuqThECgtbHVtp6afgnRdhVk6MbMkE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=s9ues161jS5XHDN3EV4YbR91w1Sy2o26y1Da8YILTe+JKCOYpUSABMh+OI3OL31RbKM8hd3XY4Jn9W9RPsegf2Xr/BWg/52g9kssyfO9Ws7ZyrssEFiDDhxE1hiywvA1KANAdQslDcNB6DtIo7BoNZym3Br8eW3tBcZIw9VS8p0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Ro+lCC5Y; 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="Ro+lCC5Y" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 31F32C4CEFF; Fri, 24 Oct 2025 10:56:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1761303408; bh=EesZuqsIPfrlBbuqThECgtbHVtp6afgnRdhVk6MbMkE=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=Ro+lCC5Yf7Hlct+M1M8L4C0hoBhxgozPARPCSXSmVQ/DS6KgSJqTNia0jJ0s5hXdQ HzDoVMclkyOge60jAoeVQZM3BkYO+UAMtvVcoDQ0wnD6mDxo6CjqSsSo4/VEFAmEo1 J+oQrxW5xzZ3ZsdFWiNTRmXhFNqnlbzn2odbsBDIV12QlzLaQ1+XmspvsR88qEAv4+ ajYs29y5vI92uTrV3woQObuWl4U7zSH2D7W1ta1v9uKWsAmp27bMrLAjdESIe4VUuQ z7eBDpQYorGDdYcoj4Gg7mS8R0dDLK1mMeDco9mMoYgpka1s2y9yUAzO2Sbn3I8/JJ DVAm1cejzYyKw== From: Christian Brauner Date: Fri, 24 Oct 2025 12:53:14 +0200 Subject: [PATCH v3 45/70] selftests/namespaces: ninth listns() test Precedence: bulk X-Mailing-List: cgroups@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: <20251024-work-namespace-nstree-listns-v3-45-b6241981b72b@kernel.org> References: <20251024-work-namespace-nstree-listns-v3-0-b6241981b72b@kernel.org> In-Reply-To: <20251024-work-namespace-nstree-listns-v3-0-b6241981b72b@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=1703; i=brauner@kernel.org; h=from:subject:message-id; bh=EesZuqsIPfrlBbuqThECgtbHVtp6afgnRdhVk6MbMkE=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWT8jmrjsXrsLrFwTqyUz2S/1ae9H7fHtE2sfb7F2iCs4 NmMw6pmHaUsDGJcDLJiiiwO7Sbhcst5KjYbZWrAzGFlAhnCwMUpABPRdGb4H5V5LWPn3t6TK6W3 hnEZ+572D0me9nLC30Nd51dnzTuzJIjhn2acwo99OisbfN76CxxYnMJjUrtxxiczRaHzVyPf3TK Q4QUA 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 | 49 ++++++++++++++++++++++++ 1 file changed, 49 insertions(+) diff --git a/tools/testing/selftests/namespaces/listns_test.c b/tools/testing/selftests/namespaces/listns_test.c index d3be6f97d34e..8a95789d6a87 100644 --- a/tools/testing/selftests/namespaces/listns_test.c +++ b/tools/testing/selftests/namespaces/listns_test.c @@ -627,4 +627,53 @@ 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 (errno == ENOSYS) { + /* listns() not supported, skip this check */ + } else { + ASSERT_LT(ret, 0); + ASSERT_EQ(errno, EINVAL); + } + + /* Test with NULL ns_ids array */ + ret = sys_listns(&req, NULL, 10, 0); + ASSERT_LT(ret, 0); + + /* Test with invalid spare field */ + req.spare = 1; + ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0); + if (errno == ENOSYS) { + /* listns() not supported, skip this check */ + } else { + ASSERT_LT(ret, 0); + ASSERT_EQ(errno, EINVAL); + } + req.spare = 0; + + /* Test with huge nr_ns_ids */ + ret = sys_listns(&req, ns_ids, 2000000, 0); + if (errno == ENOSYS) { + /* listns() not supported, skip this check */ + } else { + ASSERT_LT(ret, 0); + } +} + TEST_HARNESS_MAIN -- 2.47.3