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#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#include <linux/limits.h>
#include "zdtmtst.h"
const char *test_doc = "Check mounts of external devices";
const char *test_author = "Andrei Vagin <avagin@virtuozzo.com";
char *dirname;
TEST_OPTION(dirname, string, "directory name", 1);
int main(int argc, char **argv)
{
char *loop, fd, dfd, fd2;
struct stat st, stp, st2;
char dname[PATH_MAX], dname2[PATH_MAX];
test_init(argc, argv);
snprintf(dname, sizeof(dname), "%s/test_dir", dirname);
snprintf(dname2, sizeof(dname2), "%s/test_dir2", dirname);
mkdir(dirname, 0777);
loop = getenv("ZDTM_MNT_EXT_DEV");
if (loop == NULL) {
pr_perror("ZDTM_MNT_EXT_DEV is not set");
return 1;
}
if (mount(loop, dirname, "ext4", 0, NULL) == -1) {
pr_perror("mount");
return -1;
}
dfd = open(dirname, O_RDONLY);
if (dfd < 0) {
pr_perror("open");
return -1;
}
fd = openat(dfd, "test_file", O_RDWR | O_CREAT, 0666);
if (fd < 0) {
pr_perror("open");
return -1;
}
if (fstat(fd, &st) < 0) {
pr_perror("stat");
return 1;
}
mkdir(dname, 0777);
mkdir(dname2, 0777);
if (mount(dname, dname2, NULL, MS_BIND, NULL)) {
pr_perror("mount");
return 1;
}
fd2 = openat(dfd, "test_dir2/test_file2", O_RDWR | O_CREAT, 0666);
if (fd2 < 0) {
pr_perror("open");
return -1;
}
if (fstat(fd2, &st2) < 0) {
pr_perror("stat");
return 1;
}
test_daemon();
test_waitsig();
if (fstat(fd, &stp) < 0) {
pr_perror("stat");
return 1;
}
if (st.st_ino != stp.st_ino) {
fail("file1");
return 1;
}
if (fstat(fd2, &stp) < 0) {
pr_perror("stat");
return 1;
}
if (st2.st_ino != stp.st_ino) {
fail("file2");
return 1;
}
if (umount2(dname2, MNT_DETACH)) {
pr_perror("umount");
return 1;
}
pass();
return 0;
}
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