From patchwork Mon Nov 18 14:32:44 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiao Liang X-Patchwork-Id: 13878668 Received: from mail-pf1-f170.google.com (mail-pf1-f170.google.com [209.85.210.170]) (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 F21C41C243A; Mon, 18 Nov 2024 14:33:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.170 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731940441; cv=none; b=UMLYJg5BTnFFEVT6EkxkgAuMD4n4BNlQHJS/G8W9Hbbjpr8IIeLHiPGcKPJ6JoZyFw6B9W2XrNG1cRAJUFqXnH8yd9p60bifdIppyyRgsUWfQV1kUNdcWvOzauMOvubpeXsFYRUHIKyt0P3m0zFdpOrgekEFTuDFg2vJO7PG/7g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731940441; c=relaxed/simple; bh=EMm8SpRFSVdgOejildAdC2w3jXC1qx7tovAMGbdzoWw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=RzoVPmVavIxMNPgaQX+8jSC4+iP1NyYELlyG1WltSrbvz7nGiEWcOoEtrdq+ns/0qHsQlRUwxn/7NIPyeHl6uylUyUPQK1omQUgmk8b8ye6pfiqUT9xqBhEKY3TPaYV++M2Rq2Q5h5timhIwfPp2ogld+4MgElKnsjcF0dZL1UQ= 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=CL4T9EAm; arc=none smtp.client-ip=209.85.210.170 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="CL4T9EAm" Received: by mail-pf1-f170.google.com with SMTP id d2e1a72fcca58-7240fa50694so2573017b3a.1; Mon, 18 Nov 2024 06:33:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1731940438; x=1732545238; 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=Mad+mOcno2P0CIpC5U9uxqbBM+RxeN4q/RBh6+yxx1g=; b=CL4T9EAmet4oWj3D2aUczQ5Wy6j++1B1BMz+q0T1SnUYhEwh0UmnGmbx6yMFd/Yo/f V6M6oitwQY+pCqyfNlQmhhOKLVKRxRGDqPRpAm1697TmGXcFrCS0F9FC6Vk2FkIjiOUX uZwuWMiFyYK1VL2DO6fJNQrDFuomj+704nOcJ0O227+IqDuP2+9t/doT8em7PeFdaJ9Z 5QaTkBXhkyJYQ8jqNd4ZbmXzwCwG97RHuvTojNPdaVUPU2B5hgal09LPPzCq6kqqwNyz F3mce2Bhn7Hk7xdlVmUHP4bpCWmzlfX3rU27yw3AykBjJeTB8hsMhAFxwhrlE/A+3CUH ASNw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731940438; x=1732545238; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Mad+mOcno2P0CIpC5U9uxqbBM+RxeN4q/RBh6+yxx1g=; b=mkcbTXOihPDoEF3kRJk7Z6KyTj8F8vetx6QL3VvAoIKk9J2ZfgSQfQ4sBl7kQ0Aspr AptqKMjGTdCX1X4YgVHjlVSQUH2vUUOMvPcsfzES1rkxChhx/bFHOf89tsRQ8J8o6ihT Nt8ADeL1UndOCkBA3N+nNoCuPX6pzo9nr9Lc1EmP3gd1Wy5/Fl5NBZ+F11W8TXg+f+W3 9eUnpXfysihiKr/x/FwKe/SxKT+760P/V2i1q5GjLiFMTNGFzq0DQRw1EDRXDSkOcRTr ugyVf0eqffXPdotF98KYsHlIVLdi7G5gU2wlkAzpkyjkjmmsxvKdjDgS5fCBU5yHF6Nw 1BcQ== X-Forwarded-Encrypted: i=1; AJvYcCU4SqadZdzqBEM9eAGz8dPy8VyZ1N5qk6Ie2Mx4UucckIrB+1zRx2mlS+V3rPK8stP/S+Jx8T5sVwAqdQ==@vger.kernel.org, AJvYcCUkN84qgFYcXc0oTc3w1x10SERt/eR6PPXQDCnwZ/ohYn79c3bLEmvLl6dgw84L4yd7M1swezaAecYVpg==@vger.kernel.org, AJvYcCUn5OtIt1UrKk7YJEGol7JVUdHwDFUhm582scEMTsJ8TlwxBZ10uYLZJbELrcDlPYq41Qw=@vger.kernel.org, AJvYcCVjwnYxNcv+F2+D3fRpEZ8dw7RXfV0qecUZyEq3K6tZkm0MsTPuEtO7RSz2uQg43gc8tgwBnXNOd7G6yQUzhyU=@vger.kernel.org, AJvYcCVmWoubgTLk9VnhftPID3s+QQazA1I6ffijBTT90DMwIkQcIJVMANqxO6TRuhn6omi73bNqjessqMS5@vger.kernel.org, AJvYcCVvCtv7vs2Wm6XhDnqsZxAs4k2bTAm4E6Se7ypFRWSWJKqPWzRScdJxHwlI+QFudWg4p0EbEmpya0BL@vger.kernel.org, AJvYcCXOrhWF1YOhNgnJOfalKZhiE3Md1cX1CwCizoub9DVqH4exInnUXKvp/S5FFhuUT5DXy3PTBi+57HGdQlro@vger.kernel.org, AJvYcCXU7QP3tJIm2Wnv9wrwaV81935zbg9uQGRmlGIhLVnfXP0HPRGxe8a5KQ2hxR0h4N1uVuyP5zdT2wwadBmA8p6i@vger.kernel.org X-Gm-Message-State: AOJu0Yxrr4Ja8m+mt2ByCjOsC3lrP+pyUhmA/kuxO/CqXRQev8c2sM29 CHd3g27ggyEIgcUwzbd+6Sa6Ads0ctmLLxeFOJ9ZctSA8oT6FJ6DqZv92e6DPXs= X-Google-Smtp-Source: AGHT+IF3SrGnsKmrF4jvHwe9jv6er3cYNAFkQ6BmUOZb81V3DDpEwoq4AchAw0/egZEddY1NEy8bEw== X-Received: by 2002:a17:90b:3887:b0:2ea:98f1:c172 with SMTP id 98e67ed59e1d1-2ea98f1c2a5mr1425759a91.7.1731940436264; Mon, 18 Nov 2024 06:33:56 -0800 (PST) Received: from nova-ws.. ([103.167.140.11]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2ea81b0e2fasm1616926a91.52.2024.11.18.06.33.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 18 Nov 2024 06:33:55 -0800 (PST) From: Xiao Liang To: netdev@vger.kernel.org, linux-kselftest@vger.kernel.org, Kuniyuki Iwashima , Jakub Kicinski , Donald Hunter Cc: "David S. Miller" , David Ahern , Eric Dumazet , Paolo Abeni , Ido Schimmel , Andrew Lunn , Simon Horman , Shuah Khan , Jiri Pirko , Hangbin Liu , linux-rdma@vger.kernel.org, linux-can@vger.kernel.org, osmocom-net-gprs@lists.osmocom.org, bpf@vger.kernel.org, linux-ppp@vger.kernel.org, wireguard@lists.zx2c4.com, linux-wireless@vger.kernel.org, b.a.t.m.a.n@lists.open-mesh.org, bridge@lists.linux.dev, linux-wpan@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next v4 5/5] selftests: net: Add two test cases for link netns Date: Mon, 18 Nov 2024 22:32:44 +0800 Message-ID: <20241118143244.1773-6-shaw.leon@gmail.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241118143244.1773-1-shaw.leon@gmail.com> References: <20241118143244.1773-1-shaw.leon@gmail.com> Precedence: bulk X-Mailing-List: linux-wpan@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 - Add test for creating link in another netns when a link of the same name and ifindex exists in current netns. - Add test for link netns atomicity - create link directly in target netns, and no notifications should be generated in current netns. Signed-off-by: Xiao Liang --- tools/testing/selftests/net/Makefile | 1 + tools/testing/selftests/net/netns-name.sh | 10 ++++++ tools/testing/selftests/net/netns_atomic.py | 39 +++++++++++++++++++++ 3 files changed, 50 insertions(+) create mode 100755 tools/testing/selftests/net/netns_atomic.py diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile index 3d487b03c4a0..3aaa7950b0f0 100644 --- a/tools/testing/selftests/net/Makefile +++ b/tools/testing/selftests/net/Makefile @@ -34,6 +34,7 @@ TEST_PROGS += gre_gso.sh TEST_PROGS += cmsg_so_mark.sh TEST_PROGS += cmsg_time.sh cmsg_ipv6.sh TEST_PROGS += netns-name.sh +TEST_PROGS += netns_atomic.py TEST_PROGS += nl_netdev.py TEST_PROGS += srv6_end_dt46_l3vpn_test.sh TEST_PROGS += srv6_end_dt4_l3vpn_test.sh diff --git a/tools/testing/selftests/net/netns-name.sh b/tools/testing/selftests/net/netns-name.sh index 6974474c26f3..0be1905d1f2f 100755 --- a/tools/testing/selftests/net/netns-name.sh +++ b/tools/testing/selftests/net/netns-name.sh @@ -78,6 +78,16 @@ ip -netns $NS link show dev $ALT_NAME 2> /dev/null && fail "Can still find alt-name after move" ip -netns $test_ns link del $DEV || fail +# +# Test no conflict of the same name/ifindex in different netns +# +ip -netns $NS link add name $DEV index 100 type dummy || fail +ip -netns $NS link add netns $test_ns name $DEV index 100 type dummy || + fail "Can create in netns without moving" +ip -netns $test_ns link show dev $DEV >> /dev/null || fail "Device not found" +ip -netns $NS link del $DEV || fail +ip -netns $test_ns link del $DEV || fail + echo -ne "$(basename $0) \t\t\t\t" if [ $RET_CODE -eq 0 ]; then echo "[ OK ]" diff --git a/tools/testing/selftests/net/netns_atomic.py b/tools/testing/selftests/net/netns_atomic.py new file mode 100755 index 000000000000..d350a3fc0a91 --- /dev/null +++ b/tools/testing/selftests/net/netns_atomic.py @@ -0,0 +1,39 @@ +#!/usr/bin/env python3 +# SPDX-License-Identifier: GPL-2.0 + +import time + +from lib.py import ksft_run, ksft_exit, ksft_true +from lib.py import ip +from lib.py import NetNS, NetNSEnter +from lib.py import RtnlFamily + + +def test_event(ns1, ns2) -> None: + with NetNSEnter(str(ns1)): + rtnl = RtnlFamily() + + rtnl.ntf_subscribe("rtnlgrp-link") + + ip(f"netns set {ns1} 0", ns=str(ns2)) + + ip(f"link add netns {ns2} link-netnsid 0 dummy1 type dummy") + ip(f"link add netns {ns2} dummy2 type dummy", ns=str(ns1)) + + ip("link del dummy1", ns=str(ns2)) + ip("link del dummy2", ns=str(ns2)) + + time.sleep(1) + rtnl.check_ntf() + ksft_true(rtnl.async_msg_queue.empty(), + "Received unexpected link notification") + + +def main() -> None: + with NetNS() as ns1, NetNS() as ns2: + ksft_run([test_event], args=(ns1, ns2)) + ksft_exit() + + +if __name__ == "__main__": + main()