2 * This program is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU General Public
4 * License v2 as published by the Free Software Foundation.
6 * This program is distributed in the hope that it will be useful,
7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
9 * General Public License for more details.
11 * You should have received a copy of the GNU General Public
12 * License along with this program; if not, write to the
13 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
14 * Boston, MA 021110-1307, USA.
17 #ifndef __BTRFS_CONVERT_SOURCE_FS_H__
18 #define __BTRFS_CONVERT_SOURCE_FS_H__
20 #include "kerncompat.h"
21 #include <linux/kdev_t.h>
22 #include <sys/types.h>
25 #define CONV_IMAGE_SUBVOL_OBJECTID BTRFS_FIRST_FREE_OBJECTID
28 * Reresents a simple contiguous range.
30 * For multiple or non-contiguous ranges, use extent_cache_tree from
38 extern const struct simple_range btrfs_reserved_ranges[3];
43 pthread_mutex_t mutex;
46 struct task_info *info;
49 struct btrfs_convert_context;
51 #define SOURCE_FS_NAME_LEN (16)
53 #define CONVERT_FLAG_DATACSUM (1U << 0)
54 #define CONVERT_FLAG_INLINE_DATA (1U << 1)
55 #define CONVERT_FLAG_XATTR (1U << 2)
56 #define CONVERT_FLAG_COPY_LABEL (1U << 3)
57 #define CONVERT_FLAG_SET_LABEL (1U << 4)
59 /* 23.2.5 acl_tag_t values */
61 #define ACL_UNDEFINED_TAG (0x00)
62 #define ACL_USER_OBJ (0x01)
63 #define ACL_USER (0x02)
64 #define ACL_GROUP_OBJ (0x04)
65 #define ACL_GROUP (0x08)
66 #define ACL_MASK (0x10)
67 #define ACL_OTHER (0x20)
69 /* 23.2.7 ACL qualifier constants */
71 #define ACL_UNDEFINED_ID ((id_t)-1)
73 #define ACL_EA_VERSION 0x0002
83 acl_ea_entry a_entries[0];
95 } ext2_acl_entry_short;
101 static inline size_t acl_ea_size(int count)
103 return sizeof(acl_ea_header) + count * sizeof(acl_ea_entry);
106 int ext2_acl_count(size_t size);
110 #define MKDEV(ma, mi) (((ma) << MINORBITS) | (mi))
113 dev_t decode_dev(u32 dev);
115 struct btrfs_convert_operations {
116 const char name[SOURCE_FS_NAME_LEN];
117 int (*open_fs)(struct btrfs_convert_context *cctx, const char *devname);
118 int (*read_used_space)(struct btrfs_convert_context *cctx);
119 int (*copy_inodes)(struct btrfs_convert_context *cctx,
120 struct btrfs_root *root, u32 covert_flags,
122 void (*close_fs)(struct btrfs_convert_context *cctx);
123 int (*check_state)(struct btrfs_convert_context *cctx);
126 struct btrfs_trans_handle;
128 struct btrfs_inode_item;
130 struct blk_iterate_data {
131 struct btrfs_trans_handle *trans;
132 struct btrfs_root *root;
133 struct btrfs_root *convert_root;
134 struct btrfs_inode_item *inode;
145 void init_convert_context(struct btrfs_convert_context *cctx);
146 void clean_convert_context(struct btrfs_convert_context *cctx);
147 int block_iterate_proc(u64 disk_block, u64 file_block,
148 struct blk_iterate_data *idata);
149 void init_blk_iterate_data(struct blk_iterate_data *data,
150 struct btrfs_trans_handle *trans,
151 struct btrfs_root *root,
152 struct btrfs_inode_item *inode,
153 u64 objectid, int checksum);
154 int convert_insert_dirent(struct btrfs_trans_handle *trans,
155 struct btrfs_root *root,
156 const char *name, size_t name_len,
157 u64 dir, u64 objectid,
158 u8 file_type, u64 index_cnt,
159 struct btrfs_inode_item *inode);
160 int read_disk_extent(struct btrfs_root *root, u64 bytenr,
161 u32 num_bytes, char *buffer);
162 int record_file_blocks(struct blk_iterate_data *data,
163 u64 file_block, u64 disk_block, u64 num_blocks);
166 * Simple range functions
168 * Get range end (exclusive)
170 static inline u64 range_end(const struct simple_range *range)
172 return (range->start + range->len);