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 77AD1330B3A; Tue, 21 Oct 2025 11:47:27 +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=1761047247; cv=none; b=dpCHgqHdNMlRaXcOIZY5rGjDB8i+e/qRefvmv9m+wErKakS2jYIRp2YmKTPIUsPV6nCMGtE73sirsG5mPUld8G0wf6IHljPxZ7zoi1UaIwT4CbshCBBMQ4CzNt6rTu0Uo3o4naZB4jCgCrfG30r2ZOtcPXdEwf7I7okmbNFhJD8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761047247; c=relaxed/simple; bh=zSBiD0DmDYcPFHCmh4S9YgYEBZCkP3T4DUO3iD7+Aw0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=eaU/n9RI6LLze719gqb3GOqVdc6cbz4M/2RQ8y0ksvlwBTuJ3B1IcaIcdy585dsVA5mvaCU+OzFVVSFry88mpUuo4h/aGmDitRss2JDT+KG5ThbiZV2XBAUKa7LmiHKQGI0zMwol3qRjNBcNXvAcDGYo3lmPwO+RbjtFmXXV2wk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=n4fUWbRM; 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="n4fUWbRM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8058FC4CEF1; Tue, 21 Oct 2025 11:47:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1761047247; bh=zSBiD0DmDYcPFHCmh4S9YgYEBZCkP3T4DUO3iD7+Aw0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=n4fUWbRM11/PoGked2SvTK+PtnUeTyJJnKrdVB2F0HKz2qvX8fmqiQs8gGFtPXcU/ lSoQZIkEYCGdFEZm9ZzFa6kTb8jrb+CwLmAEh6gHINlWR6+aY3kascaVKCE3OrIyJM wDxrK1QgVVZEHD6L5HZiLyy6KxTHevLx61wb2IDmH9foswaH0p3NxFkr2je4Z2kdew HW1EDrKgCJgR44/R8+bVhTuhT4YiiVmkX5zzJ5SNHugOU5rPvPNpqW2wcOazJ7Pmcm Jtx1znmBjVktyAasvrhD9DaI+kyHYLvB2LttzRuov6oJYNKK31Q5zPi8M44LjQrgv8 9fL063LryCv8Q== From: Christian Brauner Date: Tue, 21 Oct 2025 13:43:47 +0200 Subject: [PATCH RFC DRAFT 41/50] selftests/namespaces: seventh 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-v1-41-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=1404; i=brauner@kernel.org; h=from:subject:message-id; bh=zSBiD0DmDYcPFHCmh4S9YgYEBZCkP3T4DUO3iD7+Aw0=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWR8L3y35jVz4vOpJxefyHY4JelrdrjV3vpI64W1bu7vt Ezy5heLdJSyMIhxMciKKbI4tJuEyy3nqdhslKkBM4eVCWQIAxenAExk6iVGhsPSDVd/XpFq9G+S YqncmK+mUGuqbP05s1QgiXX7szsu1xgZWld0q3pGL/9WeunolvLmWeGSiw7MPTNjVZ1WTCLv3ah F3AA= X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 Test listns() with multiple namespace types filter. Signed-off-by: Christian Brauner --- tools/testing/selftests/namespaces/listns_test.c | 31 ++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/tools/testing/selftests/namespaces/listns_test.c b/tools/testing/selftests/namespaces/listns_test.c index e1e90ef933cf..6afffddf9764 100644 --- a/tools/testing/selftests/namespaces/listns_test.c +++ b/tools/testing/selftests/namespaces/listns_test.c @@ -436,4 +436,35 @@ TEST(listns_specific_userns) waitpid(pid, &status, 0); } +/* + * Test listns() with multiple namespace types filter. + */ +TEST(listns_multiple_types) +{ + struct ns_id_req req = { + .size = sizeof(req), + .spare = 0, + .ns_id = 0, + .ns_type = CLONE_NEWNET | CLONE_NEWUTS, /* Network and UTS */ + .spare2 = 0, + .user_ns_id = 0, + }; + __u64 ns_ids[100]; + ssize_t ret; + + ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0); + if (ret < 0) { + if (errno == ENOSYS) + SKIP(return, "listns() not supported"); + TH_LOG("listns failed: %s (errno=%d)", strerror(errno), errno); + ASSERT_TRUE(false); + } + ASSERT_GE(ret, 0); + + TH_LOG("Found %zd active network/UTS namespaces", ret); + + for (ssize_t i = 0; i < ret; i++) + TH_LOG(" [%zd] ns_id: %llu", i, (unsigned long long)ns_ids[i]); +} + TEST_HARNESS_MAIN -- 2.47.3