#include <sched.h>

#include <sys/mount.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <linux/limits.h>
#include <stdio.h>
#include <stdlib.h>

#include "zdtmtst.h"

const char *test_doc = "Check that mounts with external master peers are c/r'd";
const char *test_author = "Tycho Andersen <tycho.andersen@canonical.com>";

char *dirname = "mnt_ext_auto.test";
TEST_OPTION(dirname, string, "directory name", 1);

int main(int argc, char **argv)
{
	char src[PATH_MAX], dst[PATH_MAX], *root;
	char *dname = "/tmp/zdtm_ext_auto.XXXXXX";

	root = getenv("ZDTM_ROOT");
	if (root == NULL) {
		pr_perror("root");
		return 1;
	}

	sprintf(dst, "%s/ext_mounts", getenv("ZDTM_ROOT"));

	if (strcmp(getenv("ZDTM_NEWNS"), "1"))
		goto test;

	mkdir(dname, 755);
	sprintf(src, "%s/test", dname);
	if (mount("zdtm_auto_ext_mnt", dname, "tmpfs", 0, NULL)) {
		pr_perror("mount");
		return 1;
	}
	if (mount(NULL, dname, NULL, MS_SHARED, NULL)) {
		pr_perror("shared");
		return 1;
	}

	mkdir(src, 755);
	mkdir(dst, 755);

	if (unshare(CLONE_NEWNS)) {
		pr_perror("unshare");
		return 1;
	}

	if (mount(src, dst, NULL, MS_BIND, NULL)) {
		pr_perror("bind");
		return 1;
	}

	if (mount(src, dst, NULL, MS_SLAVE, NULL)) {
		pr_perror("slave");
		return 1;
	}

test:
	test_init(argc, argv);

	test_daemon();
	test_waitsig();

	pass();

	return 0;
}
