1f08c3bdfSopenharmony_ci// SPDX-License-Identifier: GPL-2.0-or-later 2f08c3bdfSopenharmony_ci/* 3f08c3bdfSopenharmony_ci * Copyright (c) International Business Machines Corp., 2007 4f08c3bdfSopenharmony_ci * 27/12/07 Rishikesh K Rajak <risrajak@in.ibm.com> 5f08c3bdfSopenharmony_ci * Copyright (C) 2022 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com> 6f08c3bdfSopenharmony_ci */ 7f08c3bdfSopenharmony_ci 8f08c3bdfSopenharmony_ci/*\ 9f08c3bdfSopenharmony_ci * [Description] 10f08c3bdfSopenharmony_ci * 11f08c3bdfSopenharmony_ci * Clone a process with CLONE_NEWPID flag and check: 12f08c3bdfSopenharmony_ci * 13f08c3bdfSopenharmony_ci * - child process ID must be 1 14f08c3bdfSopenharmony_ci * - parent process ID must be 0 15f08c3bdfSopenharmony_ci */ 16f08c3bdfSopenharmony_ci 17f08c3bdfSopenharmony_ci#include "tst_test.h" 18f08c3bdfSopenharmony_ci#include "lapi/sched.h" 19f08c3bdfSopenharmony_ci 20f08c3bdfSopenharmony_cistatic void child_func(void) 21f08c3bdfSopenharmony_ci{ 22f08c3bdfSopenharmony_ci pid_t cpid, ppid; 23f08c3bdfSopenharmony_ci 24f08c3bdfSopenharmony_ci cpid = tst_getpid(); 25f08c3bdfSopenharmony_ci ppid = getppid(); 26f08c3bdfSopenharmony_ci 27f08c3bdfSopenharmony_ci TST_EXP_EQ_LI(cpid, 1); 28f08c3bdfSopenharmony_ci TST_EXP_EQ_LI(ppid, 0); 29f08c3bdfSopenharmony_ci} 30f08c3bdfSopenharmony_ci 31f08c3bdfSopenharmony_cistatic void run(void) 32f08c3bdfSopenharmony_ci{ 33f08c3bdfSopenharmony_ci const struct tst_clone_args args = { 34f08c3bdfSopenharmony_ci .flags = CLONE_NEWPID, 35f08c3bdfSopenharmony_ci .exit_signal = SIGCHLD, 36f08c3bdfSopenharmony_ci }; 37f08c3bdfSopenharmony_ci 38f08c3bdfSopenharmony_ci if (!SAFE_CLONE(&args)) { 39f08c3bdfSopenharmony_ci child_func(); 40f08c3bdfSopenharmony_ci return; 41f08c3bdfSopenharmony_ci } 42f08c3bdfSopenharmony_ci} 43f08c3bdfSopenharmony_ci 44f08c3bdfSopenharmony_cistatic struct tst_test test = { 45f08c3bdfSopenharmony_ci .test_all = run, 46f08c3bdfSopenharmony_ci .needs_root = 1, 47f08c3bdfSopenharmony_ci .forks_child = 1, 48f08c3bdfSopenharmony_ci .needs_kconfigs = (const char *[]) { 49f08c3bdfSopenharmony_ci "CONFIG_PID_NS", 50f08c3bdfSopenharmony_ci NULL, 51f08c3bdfSopenharmony_ci }, 52f08c3bdfSopenharmony_ci}; 53