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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) International Business Machines Corp., 2007
* 13/11/08 Gowrishankar M <gowrishankar.m@in.ibm.com>
* Copyright (C) 2022 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
*/
/*\
* [Description]
*
* Clone a process with CLONE_NEWPID flag and spawn many children inside the
* container. Then terminate all children and check if they were signaled.
*/
#include <sys/wait.h>
#include "tst_test.h"
#include "lapi/sched.h"
#define CHILDREN_NUM 10
static void child_func(void)
{
int children[CHILDREN_NUM], status;
unsigned int i;
pid_t cpid, ppid;
cpid = tst_getpid();
ppid = getppid();
TST_EXP_EQ_LI(cpid, 1);
TST_EXP_EQ_LI(ppid, 0);
tst_res(TINFO, "Spawning %d children", CHILDREN_NUM);
for (i = 0; i < CHILDREN_NUM; i++) {
children[i] = SAFE_FORK();
if (!children[i]) {
pause();
return;
}
}
tst_res(TINFO, "Terminate children with SIGUSR1");
SAFE_KILL(-1, SIGUSR1);
for (i = 0; i < CHILDREN_NUM; i++) {
SAFE_WAITPID(children[i], &status, 0);
TST_EXP_EQ_LI(WIFSIGNALED(status), 1);
TST_EXP_EQ_LI(WTERMSIG(status), SIGUSR1);
}
}
static void run(void)
{
const struct tst_clone_args args = {
.flags = CLONE_NEWPID,
.exit_signal = SIGCHLD,
};
if (!SAFE_CLONE(&args)) {
child_func();
return;
}
}
static struct tst_test test = {
.test_all = run,
.needs_root = 1,
.forks_child = 1,
};
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