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https://github.com/checkpoint-restore/criu.git
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2e13f1f029
Move static and transition into zdtm top. We can't move all the micro tests themselves, as we need to distinguish static from non static (zdtm.py makes additional checks on static ones). Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
84 lines
1.7 KiB
C
84 lines
1.7 KiB
C
#include <stdbool.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/mount.h>
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#include <sys/stat.h>
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#include <linux/limits.h>
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#include <errno.h>
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#include "zdtmtst.h"
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const char *test_doc = "Check read-only bind-mounts";
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const char *test_author = "Andrew Vagin <avagin@openvz.org>";
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char *dirname;
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TEST_OPTION(dirname, string, "directory name", 1);
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#define TEST_WORD "testtest"
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#define TEST_WORD2 "TESTTEST"
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int main(int argc, char **argv)
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{
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int fd, ret = 1;
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char rw_path[PATH_MAX], ro_path[PATH_MAX], rw_f[PATH_MAX], ro_f[PATH_MAX];
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test_init(argc, argv);
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snprintf(rw_path, sizeof(rw_path), "%s/rw", dirname);
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snprintf(ro_path, sizeof(ro_path), "%s/ro", dirname);
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snprintf(rw_f, sizeof(rw_f), "%s/rw/test", dirname);
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snprintf(ro_f, sizeof(ro_f), "%s/ro/test", dirname);
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mkdir(dirname, 0700);
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if (mount("none", dirname, "tmpfs", 0, "") < 0) {
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fail("Can't mount tmpfs");
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return 1;
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}
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mkdir(rw_path, 0700);
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mkdir(ro_path, 0700);
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if (mount("zdtm_rw", rw_path, "tmpfs", 0, "") < 0) {
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fail("Can't mount tmpfs");
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return 1;
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}
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if (mount(rw_path, ro_path, NULL, MS_BIND, NULL) < 0) {
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fail("Can't mount tmpfs");
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return 1;
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}
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if (mount(NULL, ro_path, NULL, MS_BIND | MS_REMOUNT | MS_RDONLY, NULL) < 0) {
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fail("Can't mount tmpfs");
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return 1;
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}
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test_daemon();
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test_waitsig();
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fd = open(ro_f, O_CREAT | O_WRONLY, 0666);
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if (fd != -1 || errno != EROFS) {
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fail("%s is created", ro_f);
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goto err;
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}
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fd = open(rw_f, O_CREAT | O_WRONLY, 0666);
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if (fd < 0) {
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fail("Unable to create %s", rw_f);
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goto err;
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}
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close(fd);
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fd = open(ro_f, O_RDONLY);
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if (fd < 0) {
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fail("Unable to create %s", rw_f);
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goto err;
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}
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pass();
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ret = 0;
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err:
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umount2(dirname, MNT_DETACH);
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rmdir(dirname);
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return ret;
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}
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