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Wed, 11 Dec 2024 12:20:26 +0000 From: Andrea Cervesato Date: Wed, 11 Dec 2024 13:20:33 +0100 MIME-Version: 1.0 Message-Id: <20241211-fix_setsid_tests-v1-10-e103f36c6462@suse.com> References: <20241211-fix_setsid_tests-v1-0-e103f36c6462@suse.com> In-Reply-To: <20241211-fix_setsid_tests-v1-0-e103f36c6462@suse.com> To: ltp@lists.linux.it X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1733919626; l=3265; i=andrea.cervesato@suse.com; s=20240812; h=from:subject:message-id; bh=IKg+lBwFGbHy86VIvjdWZm4lIKxTlK9YtqFa7OaaRFw=; b=Yk2hwcjhW1FcCFzPTaW43pqHJjIX0Wlq2589GN4M/LN9gtHSaJ1rguQLdt3iNiiCg2/oVnUz5 odkTot2zAAnCaknTdjc68M/oqDBCvK3sYP637KrHq4V7UTviWFl58Fo X-Developer-Key: i=andrea.cervesato@suse.com; a=ed25519; pk=RG/nLJ5snb1tLKGwSORQXBJ5XA4juT0WF2Pc/lq9meo= X-Spamd-Result: default: False [-4.30 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_ALL(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FUZZY_BLOCKED(0.00)[rspamd.com]; PREVIOUSLY_DELIVERED(0.00)[ltp@lists.linux.it]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TO_DN_NONE(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.com:mid,suse.com:email] X-Virus-Scanned: clamav-milter 1.0.3 at in-6.smtp.seeweb.it X-Virus-Status: Clean Subject: [LTP] [PATCH 10/10] Add pty09 test X-BeenThere: ltp@lists.linux.it X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Test Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-bounces+ltp=archiver.kernel.org@lists.linux.it Sender: "ltp" From: Andrea Cervesato Verify that slave pseudo-terminal can be opened multiple times in parallel. Signed-off-by: Andrea Cervesato --- runtest/pty | 1 + testcases/kernel/pty/.gitignore | 1 + testcases/kernel/pty/pty09.c | 89 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 91 insertions(+) diff --git a/runtest/pty b/runtest/pty index 365a46ee9730aa36b22dbbdbfba82ac0d491ac94..4b1abe7a602a14456877f3bc42f2275a3be0f8f0 100644 --- a/runtest/pty +++ b/runtest/pty @@ -7,6 +7,7 @@ pty05 pty05 pty06 pty06 pty07 pty07 pty08 pty08 +pty09 pty09 ptem01 ptem01 ptem02 ptem02 ptem03 ptem03 diff --git a/testcases/kernel/pty/.gitignore b/testcases/kernel/pty/.gitignore index 7d8d4dceda84f2e2695a8bee39abfe894288b8b6..2d0c8bb6ff7d6883abfc7838e257b9be50244b69 100644 --- a/testcases/kernel/pty/.gitignore +++ b/testcases/kernel/pty/.gitignore @@ -13,3 +13,4 @@ /pty06 /pty07 /pty08 +/pty09 diff --git a/testcases/kernel/pty/pty09.c b/testcases/kernel/pty/pty09.c new file mode 100644 index 0000000000000000000000000000000000000000..a9adf6ef619334b858fb99d5c388c0adac3976f5 --- /dev/null +++ b/testcases/kernel/pty/pty09.c @@ -0,0 +1,89 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) International Business Machines Corp., 2002 + * Copyright (C) 2024 SUSE LLC Andrea Cervesato + */ + +/*\ + * [Description] + * + * Verify that slave pseudo-terminal can be opened multiple times in parallel. + */ + +#define _GNU_SOURCE + +#include "tst_test.h" + +#define MASTERCLONE "/dev/ptmx" + +static unsigned int count_avail_pid(void) +{ + DIR *dir; + struct dirent *ent; + struct rlimit limit; + unsigned int count = 0; + unsigned int max_pid_num; + + if (access(MASTERCLONE, F_OK)) + tst_brk(TBROK, "%s device doesn't exist", MASTERCLONE); + + SAFE_GETRLIMIT(RLIMIT_NOFILE, &limit); + + dir = SAFE_OPENDIR("/proc/self/fd"); + while ((ent = SAFE_READDIR(dir))) + count++; + + SAFE_CLOSEDIR(dir); + + max_pid_num = limit.rlim_cur - count; + + tst_res(TINFO, "Available number of pids: %u", max_pid_num); + + return max_pid_num; +} + +static void run(void) +{ + int masterfd; + char *slavename; + unsigned int max_pid_num; + + masterfd = SAFE_OPEN(MASTERCLONE, O_RDWR); + + slavename = ptsname(masterfd); + if (slavename == NULL) + tst_brk(TBROK | TERRNO, "ptsname() error"); + + tst_res(TINFO, "pts device location is %s", slavename); + + if (grantpt(masterfd) == -1) + tst_brk(TBROK | TERRNO, "grantpt() error"); + + if (unlockpt(masterfd) == -1) + tst_brk(TBROK | TERRNO, "unlockpt() error"); + + max_pid_num = count_avail_pid(); + + int slavefd[max_pid_num]; + + for (uint32_t i = 0; i < max_pid_num; i++) + slavefd[i] = SAFE_OPEN(slavename, O_RDWR); + + tst_res(TPASS, "%s has been opened %d times", slavename, max_pid_num); + + for (uint32_t i = 0; i < max_pid_num; i++) + SAFE_CLOSE(slavefd[i]); + + SAFE_CLOSE(masterfd); +} + +static void setup(void) +{ + if (access(MASTERCLONE, F_OK)) + tst_brk(TBROK, "%s device doesn't exist", MASTERCLONE); +} + +static struct tst_test test = { + .test_all = run, + .setup = setup, +}; -- 2.43.0 -- Mailing list info: https://lists.linux.it/listinfo/ltp