2 * Copyright (C) 2012 Alexander Block. All rights reserved.
3 * Copyright (C) 2012 STRATO. All rights reserved.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public
7 * License v2 as published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public
15 * License along with this program; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 021110-1307, USA.
26 #define BTRFS_SEND_STREAM_MAGIC "btrfs-stream"
27 #define BTRFS_SEND_STREAM_VERSION 1
29 #define BTRFS_SEND_BUF_SIZE (1024 * 64)
30 #define BTRFS_SEND_READ_SIZE (1024 * 48)
43 struct btrfs_stream_header {
44 char magic[sizeof(BTRFS_SEND_STREAM_MAGIC)];
46 } __attribute__ ((__packed__));
48 struct btrfs_cmd_header {
49 /* len excluding the header */
52 /* crc including the header with zero crc field */
54 } __attribute__ ((__packed__));
56 struct btrfs_tlv_header {
58 /* len excluding the header */
60 } __attribute__ ((__packed__));
67 BTRFS_SEND_C_SNAPSHOT,
81 BTRFS_SEND_C_SET_XATTR,
82 BTRFS_SEND_C_REMOVE_XATTR,
87 BTRFS_SEND_C_TRUNCATE,
93 BTRFS_SEND_C_UPDATE_EXTENT,
96 #define BTRFS_SEND_C_MAX (__BTRFS_SEND_C_MAX - 1)
98 /* attributes in send stream */
103 BTRFS_SEND_A_CTRANSID,
116 BTRFS_SEND_A_XATTR_NAME,
117 BTRFS_SEND_A_XATTR_DATA,
120 BTRFS_SEND_A_PATH_TO,
121 BTRFS_SEND_A_PATH_LINK,
123 BTRFS_SEND_A_FILE_OFFSET,
126 BTRFS_SEND_A_CLONE_UUID,
127 BTRFS_SEND_A_CLONE_CTRANSID,
128 BTRFS_SEND_A_CLONE_PATH,
129 BTRFS_SEND_A_CLONE_OFFSET,
130 BTRFS_SEND_A_CLONE_LEN,
134 #define BTRFS_SEND_A_MAX (__BTRFS_SEND_A_MAX - 1)
137 long btrfs_ioctl_send(struct file *mnt_file, void __user *arg);