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libbtrfsutil: update definitions in btrfs_tree.h

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Copy what's in kernel header, new structures and constants.

- raid-stripe-tree
- verity
- simple quota

Deleted:
- btrfs_extent_ref_v0 (obsolete, kernel support removed)

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2024-03-06 20:41:04 +01:00
parent 27e965f538
commit 30bc34d333
1 changed files with 87 additions and 18 deletions
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105
libbtrfsutil/btrfs_tree.h
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@ -48,9 +48,12 @@
/* tracks free space in block groups. */
#define BTRFS_FREE_SPACE_TREE_OBJECTID 10ULL
/* hold the block group items. */
/* Holds the block group items for extent tree v2. */
#define BTRFS_BLOCK_GROUP_TREE_OBJECTID 11ULL
/* Holds raid stripe entries */
#define BTRFS_RAID_STRIPE_TREE_OBJECTID 12ULL
/* device stats in the device tree */
#define BTRFS_DEV_STATS_OBJECTID 0ULL
@ -84,6 +87,7 @@
*/
#define BTRFS_FREE_INO_OBJECTID -12ULL
#define BTRFS_CSUM_CHANGE_OBJECTID -13ULL
/* dummy objectid represents multiple objectids */
#define BTRFS_MULTIPLE_OBJECTIDS -255ULL
@ -116,12 +120,37 @@
#define BTRFS_INODE_REF_KEY 12
#define BTRFS_INODE_EXTREF_KEY 13
#define BTRFS_XATTR_ITEM_KEY 24
/*
* fs verity items are stored under two different key types on disk.
* The descriptor items:
* [ inode objectid, BTRFS_VERITY_DESC_ITEM_KEY, offset ]
*
* At offset 0, we store a btrfs_verity_descriptor_item which tracks the size
* of the descriptor item and some extra data for encryption.
* Starting at offset 1, these hold the generic fs verity descriptor. The
* latter are opaque to btrfs, we just read and write them as a blob for the
* higher level verity code. The most common descriptor size is 256 bytes.
*
* The merkle tree items:
* [ inode objectid, BTRFS_VERITY_MERKLE_ITEM_KEY, offset ]
*
* These also start at offset 0, and correspond to the merkle tree bytes. When
* fsverity asks for page 0 of the merkle tree, we pull up one page starting at
* offset 0 for this key type. These are also opaque to btrfs, we're blindly
* storing whatever fsverity sends down.
*/
#define BTRFS_VERITY_DESC_ITEM_KEY 36
#define BTRFS_VERITY_MERKLE_ITEM_KEY 37
#define BTRFS_ORPHAN_ITEM_KEY 48
/* reserve 2-15 close to the inode for later flexibility */
/*
* dir items are the name -> inode pointers in a directory. There is one
* for every name in a directory.
* for every name in a directory. BTRFS_DIR_LOG_ITEM_KEY is no longer used
* but it's still defined here for documentation purposes and to help avoid
* having its numerical value reused in the future.
*/
#define BTRFS_DIR_LOG_ITEM_KEY 60
#define BTRFS_DIR_LOG_INDEX_KEY 72
@ -169,6 +198,9 @@
*/
#define BTRFS_METADATA_ITEM_KEY 169
/* Extent owner, used by squota. */
#define BTRFS_EXTENT_OWNER_REF_KEY 172
#define BTRFS_TREE_BLOCK_REF_KEY 176
#define BTRFS_EXTENT_DATA_REF_KEY 178
@ -310,6 +342,8 @@
*
* Used by:
* struct btrfs_dir_item.type
*
* Values 0..7 must match common file type values in fs_types.h.
*/
#define BTRFS_FT_UNKNOWN 0
#define BTRFS_FT_REG_FILE 1
@ -321,6 +355,8 @@
#define BTRFS_FT_SYMLINK 7
#define BTRFS_FT_XATTR 8
#define BTRFS_FT_MAX 9
/* Directory contains encrypted data */
#define BTRFS_FT_ENCRYPTED 0x80
/*
* The key defines the order in the tree, and so it also defines (optimal)
@ -459,6 +495,9 @@ struct btrfs_free_space_header {
#define BTRFS_SUPER_FLAG_SEEDING (1ULL << 32)
#define BTRFS_SUPER_FLAG_METADUMP (1ULL << 33)
#define BTRFS_SUPER_FLAG_METADUMP_V2 (1ULL << 34)
#define BTRFS_SUPER_FLAG_CHANGING_FSID (1ULL << 35)
#define BTRFS_SUPER_FLAG_CHANGING_FSID_V2 (1ULL << 36)
/*
@ -507,20 +546,16 @@ struct btrfs_shared_data_ref {
__le32 count;
} __attribute__ ((__packed__));
/* Extent owner, used by squota. */
struct btrfs_extent_owner_ref {
__le64 root_id;
} __attribute__ ((__packed__));
struct btrfs_extent_inline_ref {
__u8 type;
__le64 offset;
} __attribute__ ((__packed__));
/* old style backrefs item */
struct btrfs_extent_ref_v0 {
__le64 root;
__le64 generation;
__le64 objectid;
__le32 count;
} __attribute__ ((__packed__));
/* dev extents record free space on individual devices. The owner
* field points back to the chunk allocation mapping tree that allocated
* the extent. The chunk tree uuid field is a way to double check the owner
@ -762,14 +797,14 @@ struct btrfs_file_extent_item {
__u8 encryption;
__le16 other_encoding; /* spare for later use */
/* are we __inline__ data or a real extent? */
/* are we inline data or a real extent? */
__u8 type;
/*
* disk space consumed by the extent, checksum blocks are included
* in these numbers
*
* At this offset in the structure, the __inline__ extent data start.
* At this offset in the structure, the inline extent data start.
*/
__le64 disk_bytenr;
__le64 disk_num_bytes;
@ -831,8 +866,8 @@ struct btrfs_dev_replace_item {
#define BTRFS_BLOCK_GROUP_RAID10 (1ULL << 6)
#define BTRFS_BLOCK_GROUP_RAID5 (1ULL << 7)
#define BTRFS_BLOCK_GROUP_RAID6 (1ULL << 8)
#define BTRFS_BLOCK_GROUP_RAID1C3 (1ULL << 9)
#define BTRFS_BLOCK_GROUP_RAID1C4 (1ULL << 10)
#define BTRFS_BLOCK_GROUP_RAID1C3 (1ULL << 9)
#define BTRFS_BLOCK_GROUP_RAID1C4 (1ULL << 10)
#define BTRFS_BLOCK_GROUP_RESERVED (BTRFS_AVAIL_ALLOC_BIT_SINGLE | \
BTRFS_SPACE_INFO_GLOBAL_RSV)
@ -855,15 +890,19 @@ enum btrfs_raid_types {
#define BTRFS_BLOCK_GROUP_PROFILE_MASK (BTRFS_BLOCK_GROUP_RAID0 | \
BTRFS_BLOCK_GROUP_RAID1 | \
BTRFS_BLOCK_GROUP_RAID5 | \
BTRFS_BLOCK_GROUP_RAID6 | \
BTRFS_BLOCK_GROUP_RAID1C3 | \
BTRFS_BLOCK_GROUP_RAID1C4 | \
BTRFS_BLOCK_GROUP_RAID5 | \
BTRFS_BLOCK_GROUP_RAID6 | \
BTRFS_BLOCK_GROUP_DUP | \
BTRFS_BLOCK_GROUP_RAID10)
#define BTRFS_BLOCK_GROUP_RAID56_MASK (BTRFS_BLOCK_GROUP_RAID5 | \
BTRFS_BLOCK_GROUP_RAID6)
#define BTRFS_BLOCK_GROUP_RAID1_MASK (BTRFS_BLOCK_GROUP_RAID1 | \
BTRFS_BLOCK_GROUP_RAID1C3 | \
BTRFS_BLOCK_GROUP_RAID1C4)
/*
* We need a bit for restriper to be able to tell when chunks of type
* SINGLE are available. This "extended" profile format is used in
@ -910,7 +949,7 @@ struct btrfs_free_space_info {
#define BTRFS_QGROUP_LEVEL_SHIFT 48
static __inline__ __u16 btrfs_qgroup_level(__u64 qgroupid)
{
return qgroupid >> BTRFS_QGROUP_LEVEL_SHIFT;
return (__u16)(qgroupid >> BTRFS_QGROUP_LEVEL_SHIFT);
}
/*
@ -930,6 +969,18 @@ static __inline__ __u16 btrfs_qgroup_level(__u64 qgroupid)
*/
#define BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT (1ULL << 2)
/*
* Whether or not this filesystem is using simple quotas. Not exactly the
* incompat bit, because we support using simple quotas, disabling it, then
* going back to full qgroup quotas.
*/
#define BTRFS_QGROUP_STATUS_FLAG_SIMPLE_MODE (1ULL << 3)
#define BTRFS_QGROUP_STATUS_FLAGS_MASK (BTRFS_QGROUP_STATUS_FLAG_ON | \
BTRFS_QGROUP_STATUS_FLAG_RESCAN | \
BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT | \
BTRFS_QGROUP_STATUS_FLAG_SIMPLE_MODE)
#define BTRFS_QGROUP_STATUS_VERSION 1
struct btrfs_qgroup_status_item {
@ -950,6 +1001,12 @@ struct btrfs_qgroup_status_item {
* of the scan. It contains a logical address
*/
__le64 rescan;
/*
* (Added in 6.7.) Used by simple quotas to ignore old extent
* deletions. Present when incompat flag SIMPLE_QUOTA is set.
*/
__le64 enable_gen;
} __attribute__ ((__packed__));
struct btrfs_qgroup_info_item {
@ -971,4 +1028,16 @@ struct btrfs_qgroup_limit_item {
__le64 rsv_excl;
} __attribute__ ((__packed__));
struct btrfs_verity_descriptor_item {
/* Size of the verity descriptor in bytes */
__le64 size;
/*
* When we implement support for fscrypt, we will need to encrypt the
* Merkle tree for encrypted verity files. These 128 bits are for the
* eventual storage of an fscrypt initialization vector.
*/
__le64 reserved[2];
__u8 encryption;
} __attribute__ ((__packed__));
#endif /* _BTRFS_CTREE_H_ */