android13/external/ltp/testcases/kernel/syscalls/fsmount/fsmount01.c

100 lines
2.6 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2020 Red Hat, Inc. All rights reserved.
* Author: Zorro Lang <zlang@redhat.com>
*
* Basic fsmount() test.
*/
#include "tst_test.h"
#include "lapi/fsmount.h"
#define MNTPOINT "mntpoint"
#define TCASE_ENTRY(_flags, _attrs) {.name = "Flag " #_flags ", Attr " #_attrs, .flags = _flags, .attrs = _attrs}
static struct tcase {
char *name;
unsigned int flags;
unsigned int attrs;
} tcases[] = {
TCASE_ENTRY(0, MOUNT_ATTR_RDONLY),
TCASE_ENTRY(0, MOUNT_ATTR_NOSUID),
TCASE_ENTRY(0, MOUNT_ATTR_NODEV),
TCASE_ENTRY(0, MOUNT_ATTR_NOEXEC),
TCASE_ENTRY(0, MOUNT_ATTR_RELATIME),
TCASE_ENTRY(0, MOUNT_ATTR_NOATIME),
TCASE_ENTRY(0, MOUNT_ATTR_STRICTATIME),
TCASE_ENTRY(0, MOUNT_ATTR_NODIRATIME),
TCASE_ENTRY(FSMOUNT_CLOEXEC, MOUNT_ATTR_RDONLY),
TCASE_ENTRY(FSMOUNT_CLOEXEC, MOUNT_ATTR_NOSUID),
TCASE_ENTRY(FSMOUNT_CLOEXEC, MOUNT_ATTR_NODEV),
TCASE_ENTRY(FSMOUNT_CLOEXEC, MOUNT_ATTR_NOEXEC),
TCASE_ENTRY(FSMOUNT_CLOEXEC, MOUNT_ATTR_RELATIME),
TCASE_ENTRY(FSMOUNT_CLOEXEC, MOUNT_ATTR_NOATIME),
TCASE_ENTRY(FSMOUNT_CLOEXEC, MOUNT_ATTR_STRICTATIME),
TCASE_ENTRY(FSMOUNT_CLOEXEC, MOUNT_ATTR_NODIRATIME),
};
static void run(unsigned int n)
{
struct tcase *tc = &tcases[n];
int sfd, mfd;
TEST(sfd = fsopen(tst_device->fs_type, FSOPEN_CLOEXEC));
if (sfd == -1) {
tst_res(TFAIL | TTERRNO, "fsopen() on %s failed",
tst_device->fs_type);
return;
}
TEST(fsconfig(sfd, FSCONFIG_SET_STRING, "source", tst_device->dev, 0));
if (TST_RET == -1) {
SAFE_CLOSE(sfd);
tst_res(TFAIL | TTERRNO,
"fsconfig(FSCONFIG_SET_STRING) failed to set source to %s", tst_device->dev);
return;
}
TEST(fsconfig(sfd, FSCONFIG_CMD_CREATE, NULL, NULL, 0));
if (TST_RET == -1) {
SAFE_CLOSE(sfd);
tst_res(TFAIL | TTERRNO, "fsconfig(FSCONFIG_CMD_CREATE) failed");
return;
}
TEST(mfd = fsmount(sfd, tc->flags, tc->attrs));
SAFE_CLOSE(sfd);
if (mfd == -1) {
tst_res(TFAIL | TTERRNO,
"fsmount() failed to create a mount object");
return;
}
TEST(move_mount(mfd, "", AT_FDCWD, MNTPOINT, MOVE_MOUNT_F_EMPTY_PATH));
SAFE_CLOSE(mfd);
if (TST_RET == -1) {
tst_res(TFAIL | TTERRNO,
"move_mount() failed to attach to the mount point");
return;
}
if (tst_is_mounted_at_tmpdir(MNTPOINT)) {
SAFE_UMOUNT(MNTPOINT);
tst_res(TPASS, "%s: fsmount() passed", tc->name);
}
}
static struct tst_test test = {
.tcnt = ARRAY_SIZE(tcases),
.test = run,
.setup = fsopen_supported_by_kernel,
.needs_root = 1,
.mntpoint = MNTPOINT,
.format_device = 1,
.all_filesystems = 1,
.skip_filesystems = (const char *const []){"fuse", NULL},
};