[thirdparty/xfsprogs-dev.git] / include / xfs_attr_remote.h

/*
 * Copyright (c) 2013 Red Hat, Inc.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2.1 of the GNU Lesser General Public License
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Further, this software is distributed without any warranty that it is
 * free of the rightful claim of any third person regarding infringement
 * or the like.  Any license provided herein, whether implied or
 * otherwise, applies only to this software file.  Patent licenses, if
 * any, provided herein do not apply to combinations of this program with
 * other software, or any other product whatsoever.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
 * USA.
 */
#ifndef __XFS_ATTR_REMOTE_H__
#define	__XFS_ATTR_REMOTE_H__

#define XFS_ATTR3_RMT_MAGIC	0x5841524d	/* XARM */

struct xfs_attr3_rmt_hdr {
	__be32	rm_magic;
	__be32	rm_offset;
	__be32	rm_bytes;
	__be32	rm_crc;
	uuid_t	rm_uuid;
	__be64	rm_owner;
	__be64	rm_blkno;
	__be64	rm_lsn;
};

#define XFS_ATTR3_RMT_CRC_OFF	offsetof(struct xfs_attr3_rmt_hdr, rm_crc)

#define XFS_ATTR3_RMT_BUF_SPACE(mp, bufsize)	\
	((bufsize) - (xfs_sb_version_hascrc(&(mp)->m_sb) ? \
			sizeof(struct xfs_attr3_rmt_hdr) : 0))

int xfs_attr_rmtval_get(struct xfs_da_args *args);
int xfs_attr_rmtval_set(struct xfs_da_args *args);
int xfs_attr_rmtval_remove(struct xfs_da_args *args);

#endif /* __XFS_ATTR_REMOTE_H__ */
Commit	Line	Data
9d6fabc0 DC	1	/*
	2	* Copyright (c) 2013 Red Hat, Inc.
	3	*
	4	* This program is free software; you can redistribute it and/or modify it
	5	* under the terms of version 2.1 of the GNU Lesser General Public License
	6	* as published by the Free Software Foundation.
	7	*
	8	* This program is distributed in the hope that it would be useful, but
	9	* WITHOUT ANY WARRANTY; without even the implied warranty of
	10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
	11	*
	12	* Further, this software is distributed without any warranty that it is
	13	* free of the rightful claim of any third person regarding infringement
	14	* or the like. Any license provided herein, whether implied or
	15	* otherwise, applies only to this software file. Patent licenses, if
	16	* any, provided herein do not apply to combinations of this program with
	17	* other software, or any other product whatsoever.
	18	*
	19	* You should have received a copy of the GNU Lesser General Public
	20	* License along with this program; if not, write the Free Software
	21	* Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
	22	* USA.
	23	*/
	24	#ifndef __XFS_ATTR_REMOTE_H__
	25	#define __XFS_ATTR_REMOTE_H__
	26
59915981 DC	27	#define XFS_ATTR3_RMT_MAGIC 0x5841524d /* XARM */
	28
	29	struct xfs_attr3_rmt_hdr {
	30	__be32 rm_magic;
	31	__be32 rm_offset;
	32	__be32 rm_bytes;
	33	__be32 rm_crc;
	34	uuid_t rm_uuid;
	35	__be64 rm_owner;
	36	__be64 rm_blkno;
	37	__be64 rm_lsn;
	38	};
	39
	40	#define XFS_ATTR3_RMT_CRC_OFF offsetof(struct xfs_attr3_rmt_hdr, rm_crc)
	41
	42	#define XFS_ATTR3_RMT_BUF_SPACE(mp, bufsize) \
	43	((bufsize) - (xfs_sb_version_hascrc(&(mp)->m_sb) ? \
	44	sizeof(struct xfs_attr3_rmt_hdr) : 0))
	45
9d6fabc0 DC	46	int xfs_attr_rmtval_get(struct xfs_da_args *args);
	47	int xfs_attr_rmtval_set(struct xfs_da_args *args);
	48	int xfs_attr_rmtval_remove(struct xfs_da_args *args);
	49
	50	#endif /* __XFS_ATTR_REMOTE_H__ */