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9888c340 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
557ea5dd QW |
2 | /* |
3 | * Copyright (C) Qu Wenruo 2017. All rights reserved. | |
557ea5dd QW |
4 | */ |
5 | ||
9888c340 DS |
6 | #ifndef BTRFS_TREE_CHECKER_H |
7 | #define BTRFS_TREE_CHECKER_H | |
557ea5dd | 8 | |
602035d7 | 9 | #include <linux/types.h> |
27137fac CH |
10 | #include <uapi/linux/btrfs_tree.h> |
11 | ||
12 | struct extent_buffer; | |
13 | struct btrfs_chunk; | |
602035d7 | 14 | struct btrfs_key; |
27137fac CH |
15 | |
16 | /* All the extra info needed to verify the parentness of a tree block. */ | |
17 | struct btrfs_tree_parent_check { | |
18 | /* | |
19 | * The owner check against the tree block. | |
20 | * | |
21 | * Can be 0 to skip the owner check. | |
22 | */ | |
23 | u64 owner_root; | |
24 | ||
25 | /* | |
26 | * Expected transid, can be 0 to skip the check, but such skip | |
eefaf0a1 | 27 | * should only be utilized for backref walk related code. |
27137fac CH |
28 | */ |
29 | u64 transid; | |
30 | ||
31 | /* | |
32 | * The expected first key. | |
33 | * | |
34 | * This check can be skipped if @has_first_key is false, such skip | |
35 | * can happen for case where we don't have the parent node key, | |
36 | * e.g. reading the tree root, doing backref walk. | |
37 | */ | |
38 | struct btrfs_key first_key; | |
39 | bool has_first_key; | |
40 | ||
41 | /* The expected level. Should always be set. */ | |
42 | u8 level; | |
43 | }; | |
557ea5dd | 44 | |
a7b4e6c7 JB |
45 | enum btrfs_tree_block_status { |
46 | BTRFS_TREE_BLOCK_CLEAN, | |
47 | BTRFS_TREE_BLOCK_INVALID_NRITEMS, | |
48 | BTRFS_TREE_BLOCK_INVALID_PARENT_KEY, | |
49 | BTRFS_TREE_BLOCK_BAD_KEY_ORDER, | |
50 | BTRFS_TREE_BLOCK_INVALID_LEVEL, | |
51 | BTRFS_TREE_BLOCK_INVALID_FREE_SPACE, | |
52 | BTRFS_TREE_BLOCK_INVALID_OFFSETS, | |
53 | BTRFS_TREE_BLOCK_INVALID_BLOCKPTR, | |
54 | BTRFS_TREE_BLOCK_INVALID_ITEM, | |
55 | BTRFS_TREE_BLOCK_INVALID_OWNER, | |
e03418ab | 56 | BTRFS_TREE_BLOCK_WRITTEN_NOT_SET, |
a7b4e6c7 JB |
57 | }; |
58 | ||
924452c8 JB |
59 | /* |
60 | * Exported simply for btrfs-progs which wants to have the | |
61 | * btrfs_tree_block_status return codes. | |
62 | */ | |
63 | enum btrfs_tree_block_status __btrfs_check_leaf(struct extent_buffer *leaf); | |
c26fa931 | 64 | enum btrfs_tree_block_status __btrfs_check_node(struct extent_buffer *node); |
924452c8 | 65 | |
85d8a826 | 66 | int btrfs_check_leaf(struct extent_buffer *leaf); |
813fd1dc | 67 | int btrfs_check_node(struct extent_buffer *node); |
557ea5dd | 68 | |
ddaf1d5a | 69 | int btrfs_check_chunk_valid(struct extent_buffer *leaf, |
82fc28fb | 70 | struct btrfs_chunk *chunk, u64 logical); |
88c602ab | 71 | int btrfs_check_eb_owner(const struct extent_buffer *eb, u64 root_owner); |
2cac5af1 JB |
72 | int btrfs_verify_level_key(struct extent_buffer *eb, int level, |
73 | struct btrfs_key *first_key, u64 parent_transid); | |
82fc28fb | 74 | |
557ea5dd | 75 | #endif |