1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (c) International Business Machines Corp., 2007
4 * Copyright (C) 2022 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
5 */
6
7/*\
8 * [Description]
9 *
10 * Clone a process with CLONE_NEWPID flag and check:
11 *
12 * - child session ID must be 1
13 * - parent process group ID must be 1
14 */
15
16#include "tst_test.h"
17#include "lapi/sched.h"
18
19static void child_func(void)
20{
21	TST_EXP_EQ_LI(getsid(0), 0);
22	TST_EXP_EQ_LI(getpgid(0), 0);
23
24	tst_res(TINFO, "setsid()");
25	SAFE_SETSID();
26
27	TST_EXP_EQ_LI(getsid(0), 1);
28	TST_EXP_EQ_LI(getpgid(0), 1);
29}
30
31static void run(void)
32{
33	const struct tst_clone_args args = {
34		.flags = CLONE_NEWPID,
35		.exit_signal = SIGCHLD,
36	};
37
38	if (!SAFE_CLONE(&args)) {
39		child_func();
40		return;
41	}
42}
43
44static struct tst_test test = {
45	.test_all = run,
46	.needs_root = 1,
47	.forks_child = 1,
48	.needs_kconfigs = (const char *[]) {
49		"CONFIG_PID_NS",
50		NULL,
51	},
52};
53