mirror of
https://github.com/reactos/reactos.git
synced 2024-08-26 13:18:51 +00:00
600 lines
15 KiB
C
600 lines
15 KiB
C
/* btrfs.h
|
|
* Generic btrfs header file. Thanks to whoever it was who wrote
|
|
* https://btrfs.wiki.kernel.org/index.php/On-disk_Format - you saved me a lot of time!
|
|
*
|
|
* I release this file, and this file only, into the public domain - do whatever
|
|
* you want with it. You don't have to, but I'd appreciate if you let me know if you
|
|
* use it anything cool - mark@harmstone.com. */
|
|
|
|
#pragma once
|
|
|
|
#include <stdint.h>
|
|
|
|
static const uint64_t superblock_addrs[] = { 0x10000, 0x4000000, 0x4000000000, 0x4000000000000, 0 };
|
|
|
|
#define BTRFS_MAGIC 0x4d5f53665248425f
|
|
#define MAX_LABEL_SIZE 0x100
|
|
#define SUBVOL_ROOT_INODE 0x100
|
|
|
|
#define TYPE_INODE_ITEM 0x01
|
|
#define TYPE_INODE_REF 0x0C
|
|
#define TYPE_INODE_EXTREF 0x0D
|
|
#define TYPE_XATTR_ITEM 0x18
|
|
#define TYPE_ORPHAN_INODE 0x30
|
|
#define TYPE_DIR_ITEM 0x54
|
|
#define TYPE_DIR_INDEX 0x60
|
|
#define TYPE_EXTENT_DATA 0x6C
|
|
#define TYPE_EXTENT_CSUM 0x80
|
|
#define TYPE_ROOT_ITEM 0x84
|
|
#define TYPE_ROOT_BACKREF 0x90
|
|
#define TYPE_ROOT_REF 0x9C
|
|
#define TYPE_EXTENT_ITEM 0xA8
|
|
#define TYPE_METADATA_ITEM 0xA9
|
|
#define TYPE_TREE_BLOCK_REF 0xB0
|
|
#define TYPE_EXTENT_DATA_REF 0xB2
|
|
#define TYPE_EXTENT_REF_V0 0xB4
|
|
#define TYPE_SHARED_BLOCK_REF 0xB6
|
|
#define TYPE_SHARED_DATA_REF 0xB8
|
|
#define TYPE_BLOCK_GROUP_ITEM 0xC0
|
|
#define TYPE_FREE_SPACE_INFO 0xC6
|
|
#define TYPE_FREE_SPACE_EXTENT 0xC7
|
|
#define TYPE_FREE_SPACE_BITMAP 0xC8
|
|
#define TYPE_DEV_EXTENT 0xCC
|
|
#define TYPE_DEV_ITEM 0xD8
|
|
#define TYPE_CHUNK_ITEM 0xE4
|
|
#define TYPE_TEMP_ITEM 0xF8
|
|
#define TYPE_DEV_STATS 0xF9
|
|
#define TYPE_SUBVOL_UUID 0xFB
|
|
#define TYPE_SUBVOL_REC_UUID 0xFC
|
|
|
|
#define BTRFS_ROOT_ROOT 1
|
|
#define BTRFS_ROOT_EXTENT 2
|
|
#define BTRFS_ROOT_CHUNK 3
|
|
#define BTRFS_ROOT_DEVTREE 4
|
|
#define BTRFS_ROOT_FSTREE 5
|
|
#define BTRFS_ROOT_TREEDIR 6
|
|
#define BTRFS_ROOT_CHECKSUM 7
|
|
#define BTRFS_ROOT_UUID 9
|
|
#define BTRFS_ROOT_FREE_SPACE 0xa
|
|
#define BTRFS_ROOT_DATA_RELOC 0xFFFFFFFFFFFFFFF7
|
|
|
|
#define BTRFS_COMPRESSION_NONE 0
|
|
#define BTRFS_COMPRESSION_ZLIB 1
|
|
#define BTRFS_COMPRESSION_LZO 2
|
|
#define BTRFS_COMPRESSION_ZSTD 3
|
|
|
|
#define BTRFS_ENCRYPTION_NONE 0
|
|
|
|
#define BTRFS_ENCODING_NONE 0
|
|
|
|
#define EXTENT_TYPE_INLINE 0
|
|
#define EXTENT_TYPE_REGULAR 1
|
|
#define EXTENT_TYPE_PREALLOC 2
|
|
|
|
#define BLOCK_FLAG_DATA 0x001
|
|
#define BLOCK_FLAG_SYSTEM 0x002
|
|
#define BLOCK_FLAG_METADATA 0x004
|
|
#define BLOCK_FLAG_RAID0 0x008
|
|
#define BLOCK_FLAG_RAID1 0x010
|
|
#define BLOCK_FLAG_DUPLICATE 0x020
|
|
#define BLOCK_FLAG_RAID10 0x040
|
|
#define BLOCK_FLAG_RAID5 0x080
|
|
#define BLOCK_FLAG_RAID6 0x100
|
|
#define BLOCK_FLAG_RAID1C3 0x200
|
|
#define BLOCK_FLAG_RAID1C4 0x400
|
|
|
|
#define FREE_SPACE_CACHE_ID 0xFFFFFFFFFFFFFFF5
|
|
#define EXTENT_CSUM_ID 0xFFFFFFFFFFFFFFF6
|
|
#define BALANCE_ITEM_ID 0xFFFFFFFFFFFFFFFC
|
|
|
|
#define BTRFS_INODE_NODATASUM 0x001
|
|
#define BTRFS_INODE_NODATACOW 0x002
|
|
#define BTRFS_INODE_READONLY 0x004
|
|
#define BTRFS_INODE_NOCOMPRESS 0x008
|
|
#define BTRFS_INODE_PREALLOC 0x010
|
|
#define BTRFS_INODE_SYNC 0x020
|
|
#define BTRFS_INODE_IMMUTABLE 0x040
|
|
#define BTRFS_INODE_APPEND 0x080
|
|
#define BTRFS_INODE_NODUMP 0x100
|
|
#define BTRFS_INODE_NOATIME 0x200
|
|
#define BTRFS_INODE_DIRSYNC 0x400
|
|
#define BTRFS_INODE_COMPRESS 0x800
|
|
|
|
#define BTRFS_SUBVOL_READONLY 0x1
|
|
|
|
#define BTRFS_COMPAT_RO_FLAGS_FREE_SPACE_CACHE 0x1
|
|
#define BTRFS_COMPAT_RO_FLAGS_FREE_SPACE_CACHE_VALID 0x2
|
|
|
|
#define BTRFS_INCOMPAT_FLAGS_MIXED_BACKREF 0x0001
|
|
#define BTRFS_INCOMPAT_FLAGS_DEFAULT_SUBVOL 0x0002
|
|
#define BTRFS_INCOMPAT_FLAGS_MIXED_GROUPS 0x0004
|
|
#define BTRFS_INCOMPAT_FLAGS_COMPRESS_LZO 0x0008
|
|
#define BTRFS_INCOMPAT_FLAGS_COMPRESS_ZSTD 0x0010
|
|
#define BTRFS_INCOMPAT_FLAGS_BIG_METADATA 0x0020
|
|
#define BTRFS_INCOMPAT_FLAGS_EXTENDED_IREF 0x0040
|
|
#define BTRFS_INCOMPAT_FLAGS_RAID56 0x0080
|
|
#define BTRFS_INCOMPAT_FLAGS_SKINNY_METADATA 0x0100
|
|
#define BTRFS_INCOMPAT_FLAGS_NO_HOLES 0x0200
|
|
#define BTRFS_INCOMPAT_FLAGS_METADATA_UUID 0x0400
|
|
#define BTRFS_INCOMPAT_FLAGS_RAID1C34 0x0800
|
|
|
|
#define BTRFS_SUPERBLOCK_FLAGS_SEEDING 0x100000000
|
|
|
|
#define BTRFS_ORPHAN_INODE_OBJID 0xFFFFFFFFFFFFFFFB
|
|
|
|
#define CSUM_TYPE_CRC32C 0
|
|
#define CSUM_TYPE_XXHASH 1
|
|
#define CSUM_TYPE_SHA256 2
|
|
#define CSUM_TYPE_BLAKE2 3
|
|
|
|
#pragma pack(push, 1)
|
|
|
|
typedef struct {
|
|
uint8_t uuid[16];
|
|
} BTRFS_UUID;
|
|
|
|
typedef struct {
|
|
uint64_t obj_id;
|
|
uint8_t obj_type;
|
|
uint64_t offset;
|
|
} KEY;
|
|
|
|
#define HEADER_FLAG_WRITTEN 0x000000000000001
|
|
#define HEADER_FLAG_SHARED_BACKREF 0x000000000000002
|
|
#define HEADER_FLAG_MIXED_BACKREF 0x100000000000000
|
|
|
|
typedef struct {
|
|
uint8_t csum[32];
|
|
BTRFS_UUID fs_uuid;
|
|
uint64_t address;
|
|
uint64_t flags;
|
|
BTRFS_UUID chunk_tree_uuid;
|
|
uint64_t generation;
|
|
uint64_t tree_id;
|
|
uint32_t num_items;
|
|
uint8_t level;
|
|
} tree_header;
|
|
|
|
typedef struct {
|
|
KEY key;
|
|
uint32_t offset;
|
|
uint32_t size;
|
|
} leaf_node;
|
|
|
|
typedef struct {
|
|
KEY key;
|
|
uint64_t address;
|
|
uint64_t generation;
|
|
} internal_node;
|
|
|
|
typedef struct {
|
|
uint64_t dev_id;
|
|
uint64_t num_bytes;
|
|
uint64_t bytes_used;
|
|
uint32_t optimal_io_align;
|
|
uint32_t optimal_io_width;
|
|
uint32_t minimal_io_size;
|
|
uint64_t type;
|
|
uint64_t generation;
|
|
uint64_t start_offset;
|
|
uint32_t dev_group;
|
|
uint8_t seek_speed;
|
|
uint8_t bandwidth;
|
|
BTRFS_UUID device_uuid;
|
|
BTRFS_UUID fs_uuid;
|
|
} DEV_ITEM;
|
|
|
|
#define SYS_CHUNK_ARRAY_SIZE 0x800
|
|
#define BTRFS_NUM_BACKUP_ROOTS 4
|
|
|
|
typedef struct {
|
|
uint64_t root_tree_addr;
|
|
uint64_t root_tree_generation;
|
|
uint64_t chunk_tree_addr;
|
|
uint64_t chunk_tree_generation;
|
|
uint64_t extent_tree_addr;
|
|
uint64_t extent_tree_generation;
|
|
uint64_t fs_tree_addr;
|
|
uint64_t fs_tree_generation;
|
|
uint64_t dev_root_addr;
|
|
uint64_t dev_root_generation;
|
|
uint64_t csum_root_addr;
|
|
uint64_t csum_root_generation;
|
|
uint64_t total_bytes;
|
|
uint64_t bytes_used;
|
|
uint64_t num_devices;
|
|
uint64_t reserved[4];
|
|
uint8_t root_level;
|
|
uint8_t chunk_root_level;
|
|
uint8_t extent_root_level;
|
|
uint8_t fs_root_level;
|
|
uint8_t dev_root_level;
|
|
uint8_t csum_root_level;
|
|
uint8_t reserved2[10];
|
|
} superblock_backup;
|
|
|
|
typedef struct {
|
|
uint8_t checksum[32];
|
|
BTRFS_UUID uuid;
|
|
uint64_t sb_phys_addr;
|
|
uint64_t flags;
|
|
uint64_t magic;
|
|
uint64_t generation;
|
|
uint64_t root_tree_addr;
|
|
uint64_t chunk_tree_addr;
|
|
uint64_t log_tree_addr;
|
|
uint64_t log_root_transid;
|
|
uint64_t total_bytes;
|
|
uint64_t bytes_used;
|
|
uint64_t root_dir_objectid;
|
|
uint64_t num_devices;
|
|
uint32_t sector_size;
|
|
uint32_t node_size;
|
|
uint32_t leaf_size;
|
|
uint32_t stripe_size;
|
|
uint32_t n;
|
|
uint64_t chunk_root_generation;
|
|
uint64_t compat_flags;
|
|
uint64_t compat_ro_flags;
|
|
uint64_t incompat_flags;
|
|
uint16_t csum_type;
|
|
uint8_t root_level;
|
|
uint8_t chunk_root_level;
|
|
uint8_t log_root_level;
|
|
DEV_ITEM dev_item;
|
|
char label[MAX_LABEL_SIZE];
|
|
uint64_t cache_generation;
|
|
uint64_t uuid_tree_generation;
|
|
BTRFS_UUID metadata_uuid;
|
|
uint64_t reserved[28];
|
|
uint8_t sys_chunk_array[SYS_CHUNK_ARRAY_SIZE];
|
|
superblock_backup backup[BTRFS_NUM_BACKUP_ROOTS];
|
|
uint8_t reserved2[565];
|
|
} superblock;
|
|
|
|
#define BTRFS_TYPE_UNKNOWN 0
|
|
#define BTRFS_TYPE_FILE 1
|
|
#define BTRFS_TYPE_DIRECTORY 2
|
|
#define BTRFS_TYPE_CHARDEV 3
|
|
#define BTRFS_TYPE_BLOCKDEV 4
|
|
#define BTRFS_TYPE_FIFO 5
|
|
#define BTRFS_TYPE_SOCKET 6
|
|
#define BTRFS_TYPE_SYMLINK 7
|
|
#define BTRFS_TYPE_EA 8
|
|
|
|
typedef struct {
|
|
KEY key;
|
|
uint64_t transid;
|
|
uint16_t m;
|
|
uint16_t n;
|
|
uint8_t type;
|
|
char name[1];
|
|
} DIR_ITEM;
|
|
|
|
typedef struct {
|
|
uint64_t seconds;
|
|
uint32_t nanoseconds;
|
|
} BTRFS_TIME;
|
|
|
|
typedef struct {
|
|
uint64_t generation;
|
|
uint64_t transid;
|
|
uint64_t st_size;
|
|
uint64_t st_blocks;
|
|
uint64_t block_group;
|
|
uint32_t st_nlink;
|
|
uint32_t st_uid;
|
|
uint32_t st_gid;
|
|
uint32_t st_mode;
|
|
uint64_t st_rdev;
|
|
uint64_t flags;
|
|
uint64_t sequence;
|
|
uint8_t reserved[32];
|
|
BTRFS_TIME st_atime;
|
|
BTRFS_TIME st_ctime;
|
|
BTRFS_TIME st_mtime;
|
|
BTRFS_TIME otime;
|
|
} INODE_ITEM;
|
|
|
|
typedef struct {
|
|
INODE_ITEM inode;
|
|
uint64_t generation;
|
|
uint64_t objid;
|
|
uint64_t block_number;
|
|
uint64_t byte_limit;
|
|
uint64_t bytes_used;
|
|
uint64_t last_snapshot_generation;
|
|
uint64_t flags;
|
|
uint32_t num_references;
|
|
KEY drop_progress;
|
|
uint8_t drop_level;
|
|
uint8_t root_level;
|
|
uint64_t generation2;
|
|
BTRFS_UUID uuid;
|
|
BTRFS_UUID parent_uuid;
|
|
BTRFS_UUID received_uuid;
|
|
uint64_t ctransid;
|
|
uint64_t otransid;
|
|
uint64_t stransid;
|
|
uint64_t rtransid;
|
|
BTRFS_TIME ctime;
|
|
BTRFS_TIME otime;
|
|
BTRFS_TIME stime;
|
|
BTRFS_TIME rtime;
|
|
uint64_t reserved[8];
|
|
} ROOT_ITEM;
|
|
|
|
typedef struct {
|
|
uint64_t size;
|
|
uint64_t root_id;
|
|
uint64_t stripe_length;
|
|
uint64_t type;
|
|
uint32_t opt_io_alignment;
|
|
uint32_t opt_io_width;
|
|
uint32_t sector_size;
|
|
uint16_t num_stripes;
|
|
uint16_t sub_stripes;
|
|
} CHUNK_ITEM;
|
|
|
|
typedef struct {
|
|
uint64_t dev_id;
|
|
uint64_t offset;
|
|
BTRFS_UUID dev_uuid;
|
|
} CHUNK_ITEM_STRIPE;
|
|
|
|
typedef struct {
|
|
uint64_t generation;
|
|
uint64_t decoded_size;
|
|
uint8_t compression;
|
|
uint8_t encryption;
|
|
uint16_t encoding;
|
|
uint8_t type;
|
|
uint8_t data[1];
|
|
} EXTENT_DATA;
|
|
|
|
typedef struct {
|
|
uint64_t address;
|
|
uint64_t size;
|
|
uint64_t offset;
|
|
uint64_t num_bytes;
|
|
} EXTENT_DATA2;
|
|
|
|
typedef struct {
|
|
uint64_t index;
|
|
uint16_t n;
|
|
char name[1];
|
|
} INODE_REF;
|
|
|
|
typedef struct {
|
|
uint64_t dir;
|
|
uint64_t index;
|
|
uint16_t n;
|
|
char name[1];
|
|
} INODE_EXTREF;
|
|
|
|
#define EXTENT_ITEM_DATA 0x001
|
|
#define EXTENT_ITEM_TREE_BLOCK 0x002
|
|
#define EXTENT_ITEM_SHARED_BACKREFS 0x100
|
|
|
|
typedef struct {
|
|
uint64_t refcount;
|
|
uint64_t generation;
|
|
uint64_t flags;
|
|
} EXTENT_ITEM;
|
|
|
|
typedef struct {
|
|
KEY firstitem;
|
|
uint8_t level;
|
|
} EXTENT_ITEM2;
|
|
|
|
typedef struct {
|
|
uint32_t refcount;
|
|
} EXTENT_ITEM_V0;
|
|
|
|
typedef struct {
|
|
EXTENT_ITEM extent_item;
|
|
KEY firstitem;
|
|
uint8_t level;
|
|
} EXTENT_ITEM_TREE;
|
|
|
|
typedef struct {
|
|
uint64_t offset;
|
|
} TREE_BLOCK_REF;
|
|
|
|
typedef struct {
|
|
uint64_t root;
|
|
uint64_t objid;
|
|
uint64_t offset;
|
|
uint32_t count;
|
|
} EXTENT_DATA_REF;
|
|
|
|
typedef struct {
|
|
uint64_t used;
|
|
uint64_t chunk_tree;
|
|
uint64_t flags;
|
|
} BLOCK_GROUP_ITEM;
|
|
|
|
typedef struct {
|
|
uint64_t root;
|
|
uint64_t gen;
|
|
uint64_t objid;
|
|
uint32_t count;
|
|
} EXTENT_REF_V0;
|
|
|
|
typedef struct {
|
|
uint64_t offset;
|
|
} SHARED_BLOCK_REF;
|
|
|
|
typedef struct {
|
|
uint64_t offset;
|
|
uint32_t count;
|
|
} SHARED_DATA_REF;
|
|
|
|
#define FREE_SPACE_EXTENT 1
|
|
#define FREE_SPACE_BITMAP 2
|
|
|
|
typedef struct {
|
|
uint64_t offset;
|
|
uint64_t size;
|
|
uint8_t type;
|
|
} FREE_SPACE_ENTRY;
|
|
|
|
typedef struct {
|
|
KEY key;
|
|
uint64_t generation;
|
|
uint64_t num_entries;
|
|
uint64_t num_bitmaps;
|
|
} FREE_SPACE_ITEM;
|
|
|
|
typedef struct {
|
|
uint64_t dir;
|
|
uint64_t index;
|
|
uint16_t n;
|
|
char name[1];
|
|
} ROOT_REF;
|
|
|
|
typedef struct {
|
|
uint64_t chunktree;
|
|
uint64_t objid;
|
|
uint64_t address;
|
|
uint64_t length;
|
|
BTRFS_UUID chunktree_uuid;
|
|
} DEV_EXTENT;
|
|
|
|
#define BALANCE_FLAGS_DATA 0x1
|
|
#define BALANCE_FLAGS_SYSTEM 0x2
|
|
#define BALANCE_FLAGS_METADATA 0x4
|
|
|
|
#define BALANCE_ARGS_FLAGS_PROFILES 0x001
|
|
#define BALANCE_ARGS_FLAGS_USAGE 0x002
|
|
#define BALANCE_ARGS_FLAGS_DEVID 0x004
|
|
#define BALANCE_ARGS_FLAGS_DRANGE 0x008
|
|
#define BALANCE_ARGS_FLAGS_VRANGE 0x010
|
|
#define BALANCE_ARGS_FLAGS_LIMIT 0x020
|
|
#define BALANCE_ARGS_FLAGS_LIMIT_RANGE 0x040
|
|
#define BALANCE_ARGS_FLAGS_STRIPES_RANGE 0x080
|
|
#define BALANCE_ARGS_FLAGS_CONVERT 0x100
|
|
#define BALANCE_ARGS_FLAGS_SOFT 0x200
|
|
#define BALANCE_ARGS_FLAGS_USAGE_RANGE 0x400
|
|
|
|
typedef struct {
|
|
uint64_t profiles;
|
|
|
|
union {
|
|
uint64_t usage;
|
|
struct {
|
|
uint32_t usage_start;
|
|
uint32_t usage_end;
|
|
};
|
|
};
|
|
|
|
uint64_t devid;
|
|
uint64_t drange_start;
|
|
uint64_t drange_end;
|
|
uint64_t vrange_start;
|
|
uint64_t vrange_end;
|
|
uint64_t convert;
|
|
uint64_t flags;
|
|
|
|
union {
|
|
uint64_t limit;
|
|
struct {
|
|
uint32_t limit_start;
|
|
uint32_t limit_end;
|
|
};
|
|
};
|
|
|
|
uint32_t stripes_start;
|
|
uint32_t stripes_end;
|
|
uint8_t reserved[48];
|
|
} BALANCE_ARGS;
|
|
|
|
typedef struct {
|
|
uint64_t flags;
|
|
BALANCE_ARGS data;
|
|
BALANCE_ARGS metadata;
|
|
BALANCE_ARGS system;
|
|
uint8_t reserved[32];
|
|
} BALANCE_ITEM;
|
|
|
|
#define BTRFS_FREE_SPACE_USING_BITMAPS 1
|
|
|
|
typedef struct {
|
|
uint32_t count;
|
|
uint32_t flags;
|
|
} FREE_SPACE_INFO;
|
|
|
|
#define BTRFS_DEV_STAT_WRITE_ERRORS 0
|
|
#define BTRFS_DEV_STAT_READ_ERRORS 1
|
|
#define BTRFS_DEV_STAT_FLUSH_ERRORS 2
|
|
#define BTRFS_DEV_STAT_CORRUPTION_ERRORS 3
|
|
#define BTRFS_DEV_STAT_GENERATION_ERRORS 4
|
|
|
|
#define BTRFS_SEND_CMD_SUBVOL 1
|
|
#define BTRFS_SEND_CMD_SNAPSHOT 2
|
|
#define BTRFS_SEND_CMD_MKFILE 3
|
|
#define BTRFS_SEND_CMD_MKDIR 4
|
|
#define BTRFS_SEND_CMD_MKNOD 5
|
|
#define BTRFS_SEND_CMD_MKFIFO 6
|
|
#define BTRFS_SEND_CMD_MKSOCK 7
|
|
#define BTRFS_SEND_CMD_SYMLINK 8
|
|
#define BTRFS_SEND_CMD_RENAME 9
|
|
#define BTRFS_SEND_CMD_LINK 10
|
|
#define BTRFS_SEND_CMD_UNLINK 11
|
|
#define BTRFS_SEND_CMD_RMDIR 12
|
|
#define BTRFS_SEND_CMD_SET_XATTR 13
|
|
#define BTRFS_SEND_CMD_REMOVE_XATTR 14
|
|
#define BTRFS_SEND_CMD_WRITE 15
|
|
#define BTRFS_SEND_CMD_CLONE 16
|
|
#define BTRFS_SEND_CMD_TRUNCATE 17
|
|
#define BTRFS_SEND_CMD_CHMOD 18
|
|
#define BTRFS_SEND_CMD_CHOWN 19
|
|
#define BTRFS_SEND_CMD_UTIMES 20
|
|
#define BTRFS_SEND_CMD_END 21
|
|
#define BTRFS_SEND_CMD_UPDATE_EXTENT 22
|
|
|
|
#define BTRFS_SEND_TLV_UUID 1
|
|
#define BTRFS_SEND_TLV_TRANSID 2
|
|
#define BTRFS_SEND_TLV_INODE 3
|
|
#define BTRFS_SEND_TLV_SIZE 4
|
|
#define BTRFS_SEND_TLV_MODE 5
|
|
#define BTRFS_SEND_TLV_UID 6
|
|
#define BTRFS_SEND_TLV_GID 7
|
|
#define BTRFS_SEND_TLV_RDEV 8
|
|
#define BTRFS_SEND_TLV_CTIME 9
|
|
#define BTRFS_SEND_TLV_MTIME 10
|
|
#define BTRFS_SEND_TLV_ATIME 11
|
|
#define BTRFS_SEND_TLV_OTIME 12
|
|
#define BTRFS_SEND_TLV_XATTR_NAME 13
|
|
#define BTRFS_SEND_TLV_XATTR_DATA 14
|
|
#define BTRFS_SEND_TLV_PATH 15
|
|
#define BTRFS_SEND_TLV_PATH_TO 16
|
|
#define BTRFS_SEND_TLV_PATH_LINK 17
|
|
#define BTRFS_SEND_TLV_OFFSET 18
|
|
#define BTRFS_SEND_TLV_DATA 19
|
|
#define BTRFS_SEND_TLV_CLONE_UUID 20
|
|
#define BTRFS_SEND_TLV_CLONE_CTRANSID 21
|
|
#define BTRFS_SEND_TLV_CLONE_PATH 22
|
|
#define BTRFS_SEND_TLV_CLONE_OFFSET 23
|
|
#define BTRFS_SEND_TLV_CLONE_LENGTH 24
|
|
|
|
#define BTRFS_SEND_MAGIC "btrfs-stream"
|
|
|
|
typedef struct {
|
|
uint8_t magic[13];
|
|
uint32_t version;
|
|
} btrfs_send_header;
|
|
|
|
typedef struct {
|
|
uint32_t length;
|
|
uint16_t cmd;
|
|
uint32_t csum;
|
|
} btrfs_send_command;
|
|
|
|
typedef struct {
|
|
uint16_t type;
|
|
uint16_t length;
|
|
} btrfs_send_tlv;
|
|
|
|
#pragma pack(pop)
|