[thirdparty/systemd.git] / src / basic / chattr-util.h

/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once

#include <linux/fs.h>

#include "missing_fs.h"

/* The chattr() flags to apply when creating a new file *before* writing to it. In particular, flags such as
 * FS_NOCOW_FL don't work if applied a-posteriori. All other flags are fine (or even necessary, think
 * FS_IMMUTABLE_FL!) to apply after writing to the files. */
#define CHATTR_EARLY_FL                         \
        (FS_NOATIME_FL |                        \
         FS_COMPR_FL   |                        \
         FS_NOCOW_FL   |                        \
         FS_NOCOMP_FL  |                        \
         FS_PROJINHERIT_FL)

#define CHATTR_ALL_FL                           \
        (FS_NOATIME_FL      |                   \
         FS_SYNC_FL         |                   \
         FS_DIRSYNC_FL      |                   \
         FS_APPEND_FL       |                   \
         FS_COMPR_FL        |                   \
         FS_NODUMP_FL       |                   \
         FS_EXTENT_FL       |                   \
         FS_IMMUTABLE_FL    |                   \
         FS_JOURNAL_DATA_FL |                   \
         FS_SECRM_FL        |                   \
         FS_UNRM_FL         |                   \
         FS_NOTAIL_FL       |                   \
         FS_TOPDIR_FL       |                   \
         FS_NOCOW_FL        |                   \
         FS_PROJINHERIT_FL)

int chattr_fd(int fd, unsigned value, unsigned mask, unsigned *previous);
int chattr_path(const char *p, unsigned value, unsigned mask, unsigned *previous);

int read_attr_fd(int fd, unsigned *ret);
int read_attr_path(const char *p, unsigned *ret);
Commit	Line	Data
53e1b683	1	/* SPDX-License-Identifier: LGPL-2.1+ */
c8b3094d LP	2	#pragma once
c8b3094d LP	3
8a016c74 LP	4	#include <linux/fs.h>
	5
	6	#include "missing_fs.h"
	7
	8	/* The chattr() flags to apply when creating a new file before writing to it. In particular, flags such as
	9	* FS_NOCOW_FL don't work if applied a-posteriori. All other flags are fine (or even necessary, think
	10	* FS_IMMUTABLE_FL!) to apply after writing to the files. */
	11	#define CHATTR_EARLY_FL \
	12	(FS_NOATIME_FL \| \
	13	FS_COMPR_FL \| \
	14	FS_NOCOW_FL \| \
	15	FS_NOCOMP_FL \| \
	16	FS_PROJINHERIT_FL)
	17
d629ba70 LP	18	#define CHATTR_ALL_FL \
	19	(FS_NOATIME_FL \| \
	20	FS_SYNC_FL \| \
	21	FS_DIRSYNC_FL \| \
	22	FS_APPEND_FL \| \
	23	FS_COMPR_FL \| \
	24	FS_NODUMP_FL \| \
	25	FS_EXTENT_FL \| \
	26	FS_IMMUTABLE_FL \| \
	27	FS_JOURNAL_DATA_FL \| \
	28	FS_SECRM_FL \| \
	29	FS_UNRM_FL \| \
	30	FS_NOTAIL_FL \| \
	31	FS_TOPDIR_FL \| \
	32	FS_NOCOW_FL \| \
	33	FS_PROJINHERIT_FL)
	34
db9a4254 LP	35	int chattr_fd(int fd, unsigned value, unsigned mask, unsigned *previous);
db9a4254 LP	36	int chattr_path(const char p, unsigned value, unsigned mask, unsigned previous);
c8b3094d LP	37
	38	int read_attr_fd(int fd, unsigned *ret);
	39	int read_attr_path(const char p, unsigned ret);