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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , John Johansen , Paul Moore , James Morris , "Serge E. Hallyn" , Stephen Smalley , Eric Paris , Mykola Lysenko , Shuah Khan Cc: Geliang Tang , bpf@vger.kernel.org, netdev@vger.kernel.org, mptcp@lists.linux.dev, apparmor@lists.ubuntu.com, linux-security-module@vger.kernel.org, selinux@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [RFC bpf-next v7 5/6] selftests/bpf: add two mptcp netns helpers Date: Sat, 29 Jul 2023 17:57:26 +0800 Message-Id: <49e5ee337d2943a7fda9f1cf61e47c24ef78c5bb.1690624340.git.geliang.tang@suse.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: References: X-ClientProxiedBy: SG2PR02CA0106.apcprd02.prod.outlook.com (2603:1096:4:92::22) To HE1PR0402MB3497.eurprd04.prod.outlook.com (2603:10a6:7:83::14) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: HE1PR0402MB3497:EE_|GVXPR04MB9733:EE_ X-MS-Office365-Filtering-Correlation-Id: 9fddaa7b-1e1c-47ad-c00b-08db901a49cd X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:HE1PR0402MB3497.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230028)(376002)(346002)(39860400002)(366004)(396003)(136003)(451199021)(316002)(8676002)(110136005)(478600001)(38100700002)(66556008)(921005)(86362001)(5660300002)(4326008)(66946007)(66476007)(6486002)(6512007)(6666004)(186003)(6506007)(26005)(7416002)(7406005)(8936002)(2906002)(41300700001)(44832011)(2616005)(36756003)(83380400001);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: suse.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9fddaa7b-1e1c-47ad-c00b-08db901a49cd X-MS-Exchange-CrossTenant-AuthSource: HE1PR0402MB3497.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Jul 2023 09:57:58.8549 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: f7a17af6-1c5c-4a36-aa8b-f5be247aa4ba X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: IYVdwR8QqJKgh9zzSmNvlZfw41FnCjzy0d8CLFx9Ed5BZTGMsO9j0MuTkxICpS2gZkVtdVPQmty8KR/8U/nh3w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: GVXPR04MB9733 Precedence: bulk List-ID: X-Mailing-List: selinux@vger.kernel.org Add two netns helpers for mptcp tests: create_netns() and cleanup_netns(). Use them in test_base(). These new helpers will be re-used in the following commits introducing new tests. Signed-off-by: Geliang Tang Reviewed-by: Matthieu Baerts --- .../testing/selftests/bpf/prog_tests/mptcp.c | 35 ++++++++++++------- 1 file changed, 23 insertions(+), 12 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/mptcp.c b/tools/testing/selftests/bpf/prog_tests/mptcp.c index 4ccca3d39a8f..4407bd5c9e9a 100644 --- a/tools/testing/selftests/bpf/prog_tests/mptcp.c +++ b/tools/testing/selftests/bpf/prog_tests/mptcp.c @@ -22,6 +22,26 @@ struct mptcp_storage { char ca_name[TCP_CA_NAME_MAX]; }; +static struct nstoken *create_netns(void) +{ + srand(time(NULL)); + snprintf(NS_TEST, sizeof(NS_TEST), "mptcp_ns_%d", rand()); + SYS(fail, "ip netns add %s", NS_TEST); + SYS(fail, "ip -net %s link set dev lo up", NS_TEST); + + return open_netns(NS_TEST); +fail: + return NULL; +} + +static void cleanup_netns(struct nstoken *nstoken) +{ + if (nstoken) + close_netns(nstoken); + + SYS_NOFAIL("ip netns del %s &> /dev/null", NS_TEST); +} + static int verify_tsk(int map_fd, int client_fd) { int err, cfd = client_fd; @@ -147,13 +167,8 @@ static void test_base(void) if (!ASSERT_GE(cgroup_fd, 0, "test__join_cgroup")) return; - srand(time(NULL)); - snprintf(NS_TEST, sizeof(NS_TEST), "mptcp_ns_%d", rand()); - SYS(fail, "ip netns add %s", NS_TEST); - SYS(fail, "ip -net %s link set dev lo up", NS_TEST); - - nstoken = open_netns(NS_TEST); - if (!ASSERT_OK_PTR(nstoken, "open_netns")) + nstoken = create_netns(); + if (!ASSERT_OK_PTR(nstoken, "create_netns")) goto fail; /* without MPTCP */ @@ -176,11 +191,7 @@ static void test_base(void) close(server_fd); fail: - if (nstoken) - close_netns(nstoken); - - SYS_NOFAIL("ip netns del " NS_TEST " &> /dev/null"); - + cleanup_netns(nstoken); close(cgroup_fd); }