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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2022 SUSE LLC <mdoucha@suse.cz>
*/
/*\
* [Description]
*
* Test whether the kernel properly advertises support for statx() attributes:
*
* - STATX_ATTR_COMPRESSED: The file is compressed by the filesystem.
* - STATX_ATTR_IMMUTABLE: The file cannot be modified.
* - STATX_ATTR_APPEND: The file can only be opened in append mode for writing.
* - STATX_ATTR_NODUMP: File is not a candidate for backup when a backup
* program such as dump(8) is run.
*
* xfs filesystem doesn't support STATX_ATTR_COMPRESSED flag, so we only test
* three other flags.
*
* ext2, ext4, btrfs, xfs and tmpfs support statx syscall since the following commit
*
* commit 93bc420ed41df63a18ae794101f7cbf45226a6ef
* Author: yangerkun <yangerkun@huawei.com>
* Date: Mon Feb 18 09:07:02 2019 +0800
*
* ext2: support statx syscall
*
* commit 99652ea56a4186bc5bf8a3721c5353f41b35ebcb
* Author: David Howells <dhowells@redhat.com>
* Date: Fri Mar 31 18:31:56 2017 +0100
*
* ext4: Add statx support
*
* commit 04a87e3472828f769a93655d7c64a27573bdbc2c
* Author: Yonghong Song <yhs@fb.com>
* Date: Fri May 12 15:07:43 2017 -0700
*
* Btrfs: add statx support
*
* commit 5f955f26f3d42d04aba65590a32eb70eedb7f37d
* Author: Darrick J. Wong <darrick.wong@oracle.com>
* Date: Fri Mar 31 18:32:03 2017 +0100
*
* xfs: report crtime and attribute flags to statx
*
* commit e408e695f5f1f60d784913afc45ff2c387a5aeb8
* Author: Theodore Ts'o <tytso@mit.edu>
* Date: Thu Jul 14 21:59:12 2022 -0400
*
* mm/shmem: support FS_IOC_[SG]ETFLAGS in tmpfs
*
*/
#define _GNU_SOURCE
#include <stdlib.h>
#include "tst_test.h"
#include "lapi/fs.h"
#include "lapi/stat.h"
#include "lapi/fcntl.h"
#define MOUNT_POINT "mntpoint"
#define TESTDIR MOUNT_POINT "/testdir"
#define ATTR(x) {.attr = x, .name = #x}
static struct {
uint64_t attr;
const char *name;
} attr_list[] = {
ATTR(STATX_ATTR_COMPRESSED),
ATTR(STATX_ATTR_APPEND),
ATTR(STATX_ATTR_IMMUTABLE),
ATTR(STATX_ATTR_NODUMP)
};
static uint64_t expected_mask;
static void setup(void)
{
size_t i;
int fd;
SAFE_MKDIR(TESTDIR, 0777);
/* Check general inode attribute support */
fd = SAFE_OPEN(TESTDIR, O_RDONLY | O_DIRECTORY);
TEST(ioctl(fd, FS_IOC_GETFLAGS, &i));
SAFE_CLOSE(fd);
if (TST_RET == -1 && TST_ERR == ENOTTY)
tst_brk(TCONF | TTERRNO, "Inode attributes not supported");
if (TST_RET)
tst_brk(TBROK | TTERRNO, "Unexpected ioctl() error");
for (i = 0, expected_mask = 0; i < ARRAY_SIZE(attr_list); i++)
expected_mask |= attr_list[i].attr;
/* STATX_ATTR_COMPRESSED not supported on XFS, TMPFS */
if (!strcmp(tst_device->fs_type, "xfs") || !strcmp(tst_device->fs_type, "tmpfs"))
expected_mask &= ~STATX_ATTR_COMPRESSED;
/* Attribute support was added to Btrfs statx() in kernel v4.13 */
if (!strcmp(tst_device->fs_type, "btrfs") && tst_kvercmp(4, 13, 0) < 0)
tst_brk(TCONF, "statx() attributes not supported on Btrfs");
}
static void run(void)
{
size_t i;
struct statx buf;
TST_EXP_PASS_SILENT(statx(AT_FDCWD, TESTDIR, 0, 0, &buf));
for (i = 0; i < ARRAY_SIZE(attr_list); i++) {
if (!(expected_mask & attr_list[i].attr))
continue;
if (buf.stx_attributes_mask & attr_list[i].attr)
tst_res(TPASS, "%s is supported", attr_list[i].name);
else
tst_res(TFAIL, "%s not supported", attr_list[i].name);
}
}
static struct tst_test test = {
.test_all = run,
.setup = setup,
.needs_root = 1,
.all_filesystems = 1,
.mount_device = 1,
.mntpoint = MOUNT_POINT,
.min_kver = "4.11",
.skip_filesystems = (const char *const[]) {
"fuse",
"ntfs",
NULL
},
.tags = (const struct tst_tag[]) {
{"linux-git", "93bc420ed41d"},
{"linux-git", "99652ea56a41"},
{"linux-git", "04a87e347282"},
{"linux-git", "5f955f26f3d4"},
{"linux-git", "e408e695f5f1"},
{}
},
};
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