| Alexander Block | 31db9f7 | 2012-07-25 23:19:24 +0200 | [diff] [blame] | 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); |
| Anand Jain | 1bcea35 | 2012-09-14 00:04:21 -0600 | [diff] [blame] | 133 | int write_buf(struct file *filp, const void *buf, u32 len, loff_t *off); |
| Alexander Block | 31db9f7 | 2012-07-25 23:19:24 +0200 | [diff] [blame] | 134 | #endif |