435 lines
13 KiB
C
435 lines
13 KiB
C
/****************************************************************************
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****************************************************************************
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***
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*** This header was automatically generated from a Linux kernel header
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*** of the same name, to make information necessary for userspace to
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*** call into the kernel available to libc. It contains only constants,
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*** structures, and macros generated from the original header, and thus,
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*** contains no copyrightable information.
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***
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*** To edit the content of this header, modify the corresponding
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*** source file (e.g. under external/kernel-headers/original/) then
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*** run bionic/libc/kernel/tools/update_all.py
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***
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*** Any manual change here will be lost the next time this script will
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*** be run. You've been warned!
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***
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****************************************************************************
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****************************************************************************/
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#ifndef _BTRFS_CTREE_H_
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#define _BTRFS_CTREE_H_
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#include <linux/btrfs.h>
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#include <linux/types.h>
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#include <stddef.h>
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#define BTRFS_ROOT_TREE_OBJECTID 1ULL
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#define BTRFS_EXTENT_TREE_OBJECTID 2ULL
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#define BTRFS_CHUNK_TREE_OBJECTID 3ULL
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#define BTRFS_DEV_TREE_OBJECTID 4ULL
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#define BTRFS_FS_TREE_OBJECTID 5ULL
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#define BTRFS_ROOT_TREE_DIR_OBJECTID 6ULL
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#define BTRFS_CSUM_TREE_OBJECTID 7ULL
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#define BTRFS_QUOTA_TREE_OBJECTID 8ULL
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#define BTRFS_UUID_TREE_OBJECTID 9ULL
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#define BTRFS_FREE_SPACE_TREE_OBJECTID 10ULL
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#define BTRFS_DEV_STATS_OBJECTID 0ULL
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#define BTRFS_BALANCE_OBJECTID - 4ULL
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#define BTRFS_ORPHAN_OBJECTID - 5ULL
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#define BTRFS_TREE_LOG_OBJECTID - 6ULL
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#define BTRFS_TREE_LOG_FIXUP_OBJECTID - 7ULL
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#define BTRFS_TREE_RELOC_OBJECTID - 8ULL
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#define BTRFS_DATA_RELOC_TREE_OBJECTID - 9ULL
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#define BTRFS_EXTENT_CSUM_OBJECTID - 10ULL
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#define BTRFS_FREE_SPACE_OBJECTID - 11ULL
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#define BTRFS_FREE_INO_OBJECTID - 12ULL
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#define BTRFS_MULTIPLE_OBJECTIDS - 255ULL
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#define BTRFS_FIRST_FREE_OBJECTID 256ULL
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#define BTRFS_LAST_FREE_OBJECTID - 256ULL
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#define BTRFS_FIRST_CHUNK_TREE_OBJECTID 256ULL
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#define BTRFS_DEV_ITEMS_OBJECTID 1ULL
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#define BTRFS_BTREE_INODE_OBJECTID 1
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#define BTRFS_EMPTY_SUBVOL_DIR_OBJECTID 2
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#define BTRFS_DEV_REPLACE_DEVID 0ULL
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#define BTRFS_INODE_ITEM_KEY 1
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#define BTRFS_INODE_REF_KEY 12
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#define BTRFS_INODE_EXTREF_KEY 13
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#define BTRFS_XATTR_ITEM_KEY 24
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#define BTRFS_VERITY_DESC_ITEM_KEY 36
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#define BTRFS_VERITY_MERKLE_ITEM_KEY 37
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#define BTRFS_ORPHAN_ITEM_KEY 48
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#define BTRFS_DIR_LOG_ITEM_KEY 60
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#define BTRFS_DIR_LOG_INDEX_KEY 72
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#define BTRFS_DIR_ITEM_KEY 84
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#define BTRFS_DIR_INDEX_KEY 96
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#define BTRFS_EXTENT_DATA_KEY 108
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#define BTRFS_EXTENT_CSUM_KEY 128
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#define BTRFS_ROOT_ITEM_KEY 132
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#define BTRFS_ROOT_BACKREF_KEY 144
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#define BTRFS_ROOT_REF_KEY 156
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#define BTRFS_EXTENT_ITEM_KEY 168
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#define BTRFS_METADATA_ITEM_KEY 169
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#define BTRFS_TREE_BLOCK_REF_KEY 176
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#define BTRFS_EXTENT_DATA_REF_KEY 178
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#define BTRFS_EXTENT_REF_V0_KEY 180
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#define BTRFS_SHARED_BLOCK_REF_KEY 182
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#define BTRFS_SHARED_DATA_REF_KEY 184
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#define BTRFS_BLOCK_GROUP_ITEM_KEY 192
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#define BTRFS_FREE_SPACE_INFO_KEY 198
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#define BTRFS_FREE_SPACE_EXTENT_KEY 199
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#define BTRFS_FREE_SPACE_BITMAP_KEY 200
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#define BTRFS_DEV_EXTENT_KEY 204
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#define BTRFS_DEV_ITEM_KEY 216
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#define BTRFS_CHUNK_ITEM_KEY 228
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#define BTRFS_QGROUP_STATUS_KEY 240
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#define BTRFS_QGROUP_INFO_KEY 242
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#define BTRFS_QGROUP_LIMIT_KEY 244
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#define BTRFS_QGROUP_RELATION_KEY 246
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#define BTRFS_BALANCE_ITEM_KEY 248
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#define BTRFS_TEMPORARY_ITEM_KEY 248
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#define BTRFS_DEV_STATS_KEY 249
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#define BTRFS_PERSISTENT_ITEM_KEY 249
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#define BTRFS_DEV_REPLACE_KEY 250
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#if BTRFS_UUID_SIZE != 16
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#error "UUID items require BTRFS_UUID_SIZE == 16!"
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#endif
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#define BTRFS_UUID_KEY_SUBVOL 251
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#define BTRFS_UUID_KEY_RECEIVED_SUBVOL 252
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#define BTRFS_STRING_ITEM_KEY 253
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#define BTRFS_MAX_METADATA_BLOCKSIZE 65536
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#define BTRFS_CSUM_SIZE 32
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enum btrfs_csum_type {
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BTRFS_CSUM_TYPE_CRC32 = 0,
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BTRFS_CSUM_TYPE_XXHASH = 1,
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BTRFS_CSUM_TYPE_SHA256 = 2,
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BTRFS_CSUM_TYPE_BLAKE2 = 3,
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};
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#define BTRFS_FT_UNKNOWN 0
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#define BTRFS_FT_REG_FILE 1
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#define BTRFS_FT_DIR 2
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#define BTRFS_FT_CHRDEV 3
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#define BTRFS_FT_BLKDEV 4
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#define BTRFS_FT_FIFO 5
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#define BTRFS_FT_SOCK 6
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#define BTRFS_FT_SYMLINK 7
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#define BTRFS_FT_XATTR 8
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#define BTRFS_FT_MAX 9
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struct btrfs_disk_key {
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__le64 objectid;
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__u8 type;
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__le64 offset;
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} __attribute__((__packed__));
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struct btrfs_key {
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__u64 objectid;
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__u8 type;
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__u64 offset;
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} __attribute__((__packed__));
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struct btrfs_dev_item {
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__le64 devid;
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__le64 total_bytes;
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__le64 bytes_used;
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__le32 io_align;
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__le32 io_width;
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__le32 sector_size;
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__le64 type;
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__le64 generation;
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__le64 start_offset;
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__le32 dev_group;
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__u8 seek_speed;
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__u8 bandwidth;
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__u8 uuid[BTRFS_UUID_SIZE];
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__u8 fsid[BTRFS_UUID_SIZE];
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} __attribute__((__packed__));
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struct btrfs_stripe {
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__le64 devid;
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__le64 offset;
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__u8 dev_uuid[BTRFS_UUID_SIZE];
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} __attribute__((__packed__));
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struct btrfs_chunk {
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__le64 length;
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__le64 owner;
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__le64 stripe_len;
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__le64 type;
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__le32 io_align;
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__le32 io_width;
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__le32 sector_size;
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__le16 num_stripes;
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__le16 sub_stripes;
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struct btrfs_stripe stripe;
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} __attribute__((__packed__));
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#define BTRFS_FREE_SPACE_EXTENT 1
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#define BTRFS_FREE_SPACE_BITMAP 2
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struct btrfs_free_space_entry {
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__le64 offset;
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__le64 bytes;
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__u8 type;
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} __attribute__((__packed__));
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struct btrfs_free_space_header {
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struct btrfs_disk_key location;
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__le64 generation;
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__le64 num_entries;
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__le64 num_bitmaps;
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} __attribute__((__packed__));
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#define BTRFS_HEADER_FLAG_WRITTEN (1ULL << 0)
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#define BTRFS_HEADER_FLAG_RELOC (1ULL << 1)
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#define BTRFS_SUPER_FLAG_ERROR (1ULL << 2)
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#define BTRFS_SUPER_FLAG_SEEDING (1ULL << 32)
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#define BTRFS_SUPER_FLAG_METADUMP (1ULL << 33)
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#define BTRFS_SUPER_FLAG_METADUMP_V2 (1ULL << 34)
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#define BTRFS_SUPER_FLAG_CHANGING_FSID (1ULL << 35)
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#define BTRFS_SUPER_FLAG_CHANGING_FSID_V2 (1ULL << 36)
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struct btrfs_extent_item {
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__le64 refs;
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__le64 generation;
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__le64 flags;
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} __attribute__((__packed__));
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struct btrfs_extent_item_v0 {
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__le32 refs;
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} __attribute__((__packed__));
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#define BTRFS_EXTENT_FLAG_DATA (1ULL << 0)
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#define BTRFS_EXTENT_FLAG_TREE_BLOCK (1ULL << 1)
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#define BTRFS_BLOCK_FLAG_FULL_BACKREF (1ULL << 8)
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#define BTRFS_EXTENT_FLAG_SUPER (1ULL << 48)
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struct btrfs_tree_block_info {
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struct btrfs_disk_key key;
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__u8 level;
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} __attribute__((__packed__));
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struct btrfs_extent_data_ref {
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__le64 root;
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__le64 objectid;
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__le64 offset;
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__le32 count;
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} __attribute__((__packed__));
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struct btrfs_shared_data_ref {
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__le32 count;
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} __attribute__((__packed__));
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struct btrfs_extent_inline_ref {
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__u8 type;
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__le64 offset;
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} __attribute__((__packed__));
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struct btrfs_dev_extent {
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__le64 chunk_tree;
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__le64 chunk_objectid;
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__le64 chunk_offset;
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__le64 length;
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__u8 chunk_tree_uuid[BTRFS_UUID_SIZE];
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} __attribute__((__packed__));
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struct btrfs_inode_ref {
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__le64 index;
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__le16 name_len;
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} __attribute__((__packed__));
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struct btrfs_inode_extref {
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__le64 parent_objectid;
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__le64 index;
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__le16 name_len;
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__u8 name[0];
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} __attribute__((__packed__));
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struct btrfs_timespec {
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__le64 sec;
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__le32 nsec;
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} __attribute__((__packed__));
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struct btrfs_inode_item {
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__le64 generation;
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__le64 transid;
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__le64 size;
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__le64 nbytes;
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__le64 block_group;
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__le32 nlink;
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__le32 uid;
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__le32 gid;
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__le32 mode;
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__le64 rdev;
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__le64 flags;
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__le64 sequence;
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__le64 reserved[4];
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struct btrfs_timespec atime;
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struct btrfs_timespec ctime;
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struct btrfs_timespec mtime;
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struct btrfs_timespec otime;
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} __attribute__((__packed__));
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struct btrfs_dir_log_item {
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__le64 end;
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} __attribute__((__packed__));
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struct btrfs_dir_item {
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struct btrfs_disk_key location;
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__le64 transid;
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__le16 data_len;
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__le16 name_len;
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__u8 type;
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} __attribute__((__packed__));
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#define BTRFS_ROOT_SUBVOL_RDONLY (1ULL << 0)
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#define BTRFS_ROOT_SUBVOL_DEAD (1ULL << 48)
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struct btrfs_root_item {
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struct btrfs_inode_item inode;
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__le64 generation;
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__le64 root_dirid;
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__le64 bytenr;
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__le64 byte_limit;
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__le64 bytes_used;
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__le64 last_snapshot;
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__le64 flags;
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__le32 refs;
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struct btrfs_disk_key drop_progress;
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__u8 drop_level;
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__u8 level;
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__le64 generation_v2;
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__u8 uuid[BTRFS_UUID_SIZE];
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__u8 parent_uuid[BTRFS_UUID_SIZE];
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__u8 received_uuid[BTRFS_UUID_SIZE];
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__le64 ctransid;
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__le64 otransid;
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__le64 stransid;
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__le64 rtransid;
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struct btrfs_timespec ctime;
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struct btrfs_timespec otime;
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struct btrfs_timespec stime;
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struct btrfs_timespec rtime;
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__le64 reserved[8];
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} __attribute__((__packed__));
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struct btrfs_root_ref {
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__le64 dirid;
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__le64 sequence;
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__le16 name_len;
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} __attribute__((__packed__));
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struct btrfs_disk_balance_args {
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__le64 profiles;
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union {
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__le64 usage;
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struct {
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__le32 usage_min;
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__le32 usage_max;
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};
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};
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__le64 devid;
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__le64 pstart;
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__le64 pend;
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__le64 vstart;
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__le64 vend;
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__le64 target;
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__le64 flags;
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union {
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__le64 limit;
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struct {
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__le32 limit_min;
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__le32 limit_max;
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};
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};
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__le32 stripes_min;
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__le32 stripes_max;
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__le64 unused[6];
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} __attribute__((__packed__));
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struct btrfs_balance_item {
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__le64 flags;
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struct btrfs_disk_balance_args data;
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struct btrfs_disk_balance_args meta;
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struct btrfs_disk_balance_args sys;
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__le64 unused[4];
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} __attribute__((__packed__));
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enum {
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BTRFS_FILE_EXTENT_INLINE = 0,
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BTRFS_FILE_EXTENT_REG = 1,
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BTRFS_FILE_EXTENT_PREALLOC = 2,
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BTRFS_NR_FILE_EXTENT_TYPES = 3,
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};
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struct btrfs_file_extent_item {
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__le64 generation;
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__le64 ram_bytes;
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__u8 compression;
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__u8 encryption;
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__le16 other_encoding;
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__u8 type;
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__le64 disk_bytenr;
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__le64 disk_num_bytes;
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__le64 offset;
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__le64 num_bytes;
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} __attribute__((__packed__));
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struct btrfs_csum_item {
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__u8 csum;
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} __attribute__((__packed__));
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struct btrfs_dev_stats_item {
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__le64 values[BTRFS_DEV_STAT_VALUES_MAX];
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} __attribute__((__packed__));
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#define BTRFS_DEV_REPLACE_ITEM_CONT_READING_FROM_SRCDEV_MODE_ALWAYS 0
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#define BTRFS_DEV_REPLACE_ITEM_CONT_READING_FROM_SRCDEV_MODE_AVOID 1
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struct btrfs_dev_replace_item {
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__le64 src_devid;
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__le64 cursor_left;
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__le64 cursor_right;
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__le64 cont_reading_from_srcdev_mode;
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__le64 replace_state;
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__le64 time_started;
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__le64 time_stopped;
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__le64 num_write_errors;
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__le64 num_uncorrectable_read_errors;
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} __attribute__((__packed__));
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#define BTRFS_BLOCK_GROUP_DATA (1ULL << 0)
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#define BTRFS_BLOCK_GROUP_SYSTEM (1ULL << 1)
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#define BTRFS_BLOCK_GROUP_METADATA (1ULL << 2)
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#define BTRFS_BLOCK_GROUP_RAID0 (1ULL << 3)
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#define BTRFS_BLOCK_GROUP_RAID1 (1ULL << 4)
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#define BTRFS_BLOCK_GROUP_DUP (1ULL << 5)
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#define BTRFS_BLOCK_GROUP_RAID10 (1ULL << 6)
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#define BTRFS_BLOCK_GROUP_RAID5 (1ULL << 7)
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#define BTRFS_BLOCK_GROUP_RAID6 (1ULL << 8)
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#define BTRFS_BLOCK_GROUP_RAID1C3 (1ULL << 9)
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#define BTRFS_BLOCK_GROUP_RAID1C4 (1ULL << 10)
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#define BTRFS_BLOCK_GROUP_RESERVED (BTRFS_AVAIL_ALLOC_BIT_SINGLE | BTRFS_SPACE_INFO_GLOBAL_RSV)
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enum btrfs_raid_types {
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BTRFS_RAID_RAID10,
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BTRFS_RAID_RAID1,
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BTRFS_RAID_DUP,
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BTRFS_RAID_RAID0,
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BTRFS_RAID_SINGLE,
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BTRFS_RAID_RAID5,
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BTRFS_RAID_RAID6,
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BTRFS_RAID_RAID1C3,
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BTRFS_RAID_RAID1C4,
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BTRFS_NR_RAID_TYPES
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};
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#define BTRFS_BLOCK_GROUP_TYPE_MASK (BTRFS_BLOCK_GROUP_DATA | BTRFS_BLOCK_GROUP_SYSTEM | BTRFS_BLOCK_GROUP_METADATA)
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#define BTRFS_BLOCK_GROUP_PROFILE_MASK (BTRFS_BLOCK_GROUP_RAID0 | BTRFS_BLOCK_GROUP_RAID1 | BTRFS_BLOCK_GROUP_RAID1C3 | BTRFS_BLOCK_GROUP_RAID1C4 | BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6 | BTRFS_BLOCK_GROUP_DUP | BTRFS_BLOCK_GROUP_RAID10)
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#define BTRFS_BLOCK_GROUP_RAID56_MASK (BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6)
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#define BTRFS_BLOCK_GROUP_RAID1_MASK (BTRFS_BLOCK_GROUP_RAID1 | BTRFS_BLOCK_GROUP_RAID1C3 | BTRFS_BLOCK_GROUP_RAID1C4)
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#define BTRFS_AVAIL_ALLOC_BIT_SINGLE (1ULL << 48)
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#define BTRFS_SPACE_INFO_GLOBAL_RSV (1ULL << 49)
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#define BTRFS_EXTENDED_PROFILE_MASK (BTRFS_BLOCK_GROUP_PROFILE_MASK | BTRFS_AVAIL_ALLOC_BIT_SINGLE)
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struct btrfs_block_group_item {
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__le64 used;
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__le64 chunk_objectid;
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__le64 flags;
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} __attribute__((__packed__));
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struct btrfs_free_space_info {
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__le32 extent_count;
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__le32 flags;
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} __attribute__((__packed__));
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#define BTRFS_FREE_SPACE_USING_BITMAPS (1ULL << 0)
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#define BTRFS_QGROUP_LEVEL_SHIFT 48
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#define BTRFS_QGROUP_STATUS_FLAG_ON (1ULL << 0)
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#define BTRFS_QGROUP_STATUS_FLAG_RESCAN (1ULL << 1)
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#define BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT (1ULL << 2)
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#define BTRFS_QGROUP_STATUS_VERSION 1
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struct btrfs_qgroup_status_item {
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__le64 version;
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__le64 generation;
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__le64 flags;
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__le64 rescan;
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} __attribute__((__packed__));
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struct btrfs_qgroup_info_item {
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__le64 generation;
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__le64 rfer;
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__le64 rfer_cmpr;
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__le64 excl;
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__le64 excl_cmpr;
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} __attribute__((__packed__));
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struct btrfs_qgroup_limit_item {
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__le64 flags;
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__le64 max_rfer;
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__le64 max_excl;
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__le64 rsv_rfer;
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__le64 rsv_excl;
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} __attribute__((__packed__));
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struct btrfs_verity_descriptor_item {
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__le64 size;
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__le64 reserved[2];
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__u8 encryption;
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} __attribute__((__packed__));
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#endif
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