testcases/kernel/security/tomoyo/newns.c

/******************************************************************************/
/*                                                                            */
/* Copyright (c) Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>, 2009      */
/*                                                                            */
/* This program is free software;  you can redistribute it and/or modify      */
/* it under the terms of the GNU General Public License as published by       */
/* the Free Software Foundation; either version 2 of the License, or          */
/* (at your option) any later version.                                        */
/*                                                                            */
/* This program is distributed in the hope that it will be useful,            */
/* but WITHOUT ANY WARRANTY;  without even the implied warranty of            */
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See                  */
/* the GNU General Public License for more details.                           */
/*                                                                            */
/* You should have received a copy of the GNU General Public License          */
/* along with this program;  if not, write to the Free Software               */
/* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA    */
/*                                                                            */
/******************************************************************************/

#define _GNU_SOURCE

#include <stdio.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/mount.h>
#include <unistd.h>
#include <sched.h>
#include <errno.h>
#include <stdlib.h>
#include "test.h"

static int child(void *arg)
{
	char **argv = (char **) arg;
	argv++;
	mount("/tmp/", "/tmp/", "tmpfs", 0, NULL);
	execvp(argv[0], argv);
	_exit(1);
}

int main(int argc, char *argv[])
{
	char c = 0;
	const pid_t pid = ltp_clone_quick(CLONE_NEWNS, child, (void *) argv);
	while (waitpid(pid, NULL, __WALL) == EOF && errno == EINTR)
		c++; /* Dummy. */
	return 0;
}