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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License v2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 021110-1307, USA.
*/
#ifndef __BTRFS_CONVERT_SOURCE_REISERFS_H__
#define __BTRFS_CONVERT_SOURCE_REISERFS_H__
#if BTRFSCONVERT_REISERFS
#include "kerncompat.h"
#include <reiserfs/misc.h>
#include <reiserfs/io.h>
#include <reiserfs/reiserfs_lib.h>
#include <reiserfs/reiserfs_fs.h>
#include <linux/kdev_t.h>
#include "convert/source-fs.h"
#define REISERFS_ACL_VERSION 0x0001
/* 23.2.5 acl_tag_t values */
#define ACL_UNDEFINED_TAG (0x00)
#define ACL_USER_OBJ (0x01)
#define ACL_USER (0x02)
#define ACL_GROUP_OBJ (0x04)
#define ACL_GROUP (0x08)
#define ACL_MASK (0x10)
#define ACL_OTHER (0x20)
/* 23.2.7 ACL qualifier constants */
#define ACL_UNDEFINED_ID ((id_t)-1)
typedef struct {
__le16 e_tag;
__le16 e_perm;
__le32 e_id;
} ext2_acl_entry;
typedef struct {
__le16 e_tag;
__le16 e_perm;
} ext2_acl_entry_short;
typedef struct {
__le32 a_version;
} ext2_acl_header;
#define ACL_EA_VERSION 0x0002
typedef struct {
__le16 e_tag;
__le16 e_perm;
__le32 e_id;
} acl_ea_entry;
typedef struct {
__le32 a_version;
acl_ea_entry a_entries[0];
} acl_ea_header;
static inline int ext2_acl_count(size_t size)
{
ssize_t s;
size -= sizeof(ext2_acl_header);
s = size - 4 * sizeof(ext2_acl_entry_short);
if (s < 0) {
if (size % sizeof(ext2_acl_entry_short))
return -1;
return size / sizeof(ext2_acl_entry_short);
} else {
if (s % sizeof(ext2_acl_entry))
return -1;
return s / sizeof(ext2_acl_entry) + 4;
}
}
static inline size_t acl_ea_size(int count)
{
return sizeof(acl_ea_header) + count * sizeof(acl_ea_entry);
}
static inline dev_t new_decode_dev(u32 dev)
{
unsigned major = (dev & 0xfff00) >> 8;
unsigned minor = (dev & 0xff) | ((dev >> 12) & 0xfff00);
return MKDEV(major, minor);
}
#endif /* BTRFSCONVERT_REISERFS */
#endif
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