ARM: tegra: make device can run on UP
[linux-3.10.git] / fs / btrfs / send.h
1 /*
2  * Copyright (C) 2012 Alexander Block.  All rights reserved.
3  * Copyright (C) 2012 STRATO.  All rights reserved.
4  *
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.
8  *
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.
13  *
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.
18  */
19
20 #include "ctree.h"
21
22 #define BTRFS_SEND_STREAM_MAGIC "btrfs-stream"
23 #define BTRFS_SEND_STREAM_VERSION 1
24
25 #define BTRFS_SEND_BUF_SIZE (1024 * 64)
26 #define BTRFS_SEND_READ_SIZE (1024 * 48)
27
28 enum btrfs_tlv_type {
29         BTRFS_TLV_U8,
30         BTRFS_TLV_U16,
31         BTRFS_TLV_U32,
32         BTRFS_TLV_U64,
33         BTRFS_TLV_BINARY,
34         BTRFS_TLV_STRING,
35         BTRFS_TLV_UUID,
36         BTRFS_TLV_TIMESPEC,
37 };
38
39 struct btrfs_stream_header {
40         char magic[sizeof(BTRFS_SEND_STREAM_MAGIC)];
41         __le32 version;
42 } __attribute__ ((__packed__));
43
44 struct btrfs_cmd_header {
45         /* len excluding the header */
46         __le32 len;
47         __le16 cmd;
48         /* crc including the header with zero crc field */
49         __le32 crc;
50 } __attribute__ ((__packed__));
51
52 struct btrfs_tlv_header {
53         __le16 tlv_type;
54         /* len excluding the header */
55         __le16 tlv_len;
56 } __attribute__ ((__packed__));
57
58 /* commands */
59 enum btrfs_send_cmd {
60         BTRFS_SEND_C_UNSPEC,
61
62         BTRFS_SEND_C_SUBVOL,
63         BTRFS_SEND_C_SNAPSHOT,
64
65         BTRFS_SEND_C_MKFILE,
66         BTRFS_SEND_C_MKDIR,
67         BTRFS_SEND_C_MKNOD,
68         BTRFS_SEND_C_MKFIFO,
69         BTRFS_SEND_C_MKSOCK,
70         BTRFS_SEND_C_SYMLINK,
71
72         BTRFS_SEND_C_RENAME,
73         BTRFS_SEND_C_LINK,
74         BTRFS_SEND_C_UNLINK,
75         BTRFS_SEND_C_RMDIR,
76
77         BTRFS_SEND_C_SET_XATTR,
78         BTRFS_SEND_C_REMOVE_XATTR,
79
80         BTRFS_SEND_C_WRITE,
81         BTRFS_SEND_C_CLONE,
82
83         BTRFS_SEND_C_TRUNCATE,
84         BTRFS_SEND_C_CHMOD,
85         BTRFS_SEND_C_CHOWN,
86         BTRFS_SEND_C_UTIMES,
87
88         BTRFS_SEND_C_END,
89         __BTRFS_SEND_C_MAX,
90 };
91 #define BTRFS_SEND_C_MAX (__BTRFS_SEND_C_MAX - 1)
92
93 /* attributes in send stream */
94 enum {
95         BTRFS_SEND_A_UNSPEC,
96
97         BTRFS_SEND_A_UUID,
98         BTRFS_SEND_A_CTRANSID,
99
100         BTRFS_SEND_A_INO,
101         BTRFS_SEND_A_SIZE,
102         BTRFS_SEND_A_MODE,
103         BTRFS_SEND_A_UID,
104         BTRFS_SEND_A_GID,
105         BTRFS_SEND_A_RDEV,
106         BTRFS_SEND_A_CTIME,
107         BTRFS_SEND_A_MTIME,
108         BTRFS_SEND_A_ATIME,
109         BTRFS_SEND_A_OTIME,
110
111         BTRFS_SEND_A_XATTR_NAME,
112         BTRFS_SEND_A_XATTR_DATA,
113
114         BTRFS_SEND_A_PATH,
115         BTRFS_SEND_A_PATH_TO,
116         BTRFS_SEND_A_PATH_LINK,
117
118         BTRFS_SEND_A_FILE_OFFSET,
119         BTRFS_SEND_A_DATA,
120
121         BTRFS_SEND_A_CLONE_UUID,
122         BTRFS_SEND_A_CLONE_CTRANSID,
123         BTRFS_SEND_A_CLONE_PATH,
124         BTRFS_SEND_A_CLONE_OFFSET,
125         BTRFS_SEND_A_CLONE_LEN,
126
127         __BTRFS_SEND_A_MAX,
128 };
129 #define BTRFS_SEND_A_MAX (__BTRFS_SEND_A_MAX - 1)
130
131 #ifdef __KERNEL__
132 long btrfs_ioctl_send(struct file *mnt_file, void __user *arg);
133 int write_buf(struct file *filp, const void *buf, u32 len, loff_t *off);
134 #endif