mirror of
https://github.com/kdave/btrfs-progs
synced 2024-12-18 12:25:12 +00:00
75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (C) Qu Wenruo 2017. All rights reserved.
|
|
*/
|
|
|
|
#ifndef BTRFS_TREE_CHECKER_H
|
|
#define BTRFS_TREE_CHECKER_H
|
|
|
|
#include "kerncompat.h"
|
|
#include <stdbool.h>
|
|
#include "kernel-lib/bitops.h"
|
|
#include "kernel-shared/uapi/btrfs_tree.h"
|
|
|
|
struct extent_buffer;
|
|
|
|
/* All the extra info needed to verify the parentness of a tree block. */
|
|
struct btrfs_tree_parent_check {
|
|
/*
|
|
* The owner check against the tree block.
|
|
*
|
|
* Can be 0 to skip the owner check.
|
|
*/
|
|
u64 owner_root;
|
|
|
|
/*
|
|
* Expected transid, can be 0 to skip the check, but such skip
|
|
* should only be utlized for backref walk related code.
|
|
*/
|
|
u64 transid;
|
|
|
|
/*
|
|
* The expected first key.
|
|
*
|
|
* This check can be skipped if @has_first_key is false, such skip
|
|
* can happen for case where we don't have the parent node key,
|
|
* e.g. reading the tree root, doing backref walk.
|
|
*/
|
|
struct btrfs_key first_key;
|
|
bool has_first_key;
|
|
|
|
/* The expected level. Should always be set. */
|
|
u8 level;
|
|
};
|
|
|
|
enum btrfs_tree_block_status {
|
|
BTRFS_TREE_BLOCK_CLEAN,
|
|
BTRFS_TREE_BLOCK_INVALID_NRITEMS,
|
|
BTRFS_TREE_BLOCK_INVALID_PARENT_KEY,
|
|
BTRFS_TREE_BLOCK_BAD_KEY_ORDER,
|
|
BTRFS_TREE_BLOCK_INVALID_LEVEL,
|
|
BTRFS_TREE_BLOCK_INVALID_FREE_SPACE,
|
|
BTRFS_TREE_BLOCK_INVALID_OFFSETS,
|
|
BTRFS_TREE_BLOCK_INVALID_BLOCKPTR,
|
|
BTRFS_TREE_BLOCK_INVALID_ITEM,
|
|
BTRFS_TREE_BLOCK_INVALID_OWNER,
|
|
};
|
|
|
|
/*
|
|
* Exported simply for btrfs-progs which wants to have the
|
|
* btrfs_tree_block_status return codes.
|
|
*/
|
|
enum btrfs_tree_block_status __btrfs_check_leaf(struct extent_buffer *leaf);
|
|
enum btrfs_tree_block_status __btrfs_check_node(struct extent_buffer *node);
|
|
|
|
int btrfs_check_leaf(struct extent_buffer *leaf);
|
|
int btrfs_check_node(struct extent_buffer *node);
|
|
|
|
int btrfs_check_chunk_valid(struct extent_buffer *leaf,
|
|
struct btrfs_chunk *chunk, u64 logical);
|
|
int btrfs_check_eb_owner(const struct extent_buffer *eb, u64 root_owner);
|
|
int btrfs_verify_level_key(struct extent_buffer *eb, int level,
|
|
struct btrfs_key *first_key, u64 parent_transid);
|
|
|
|
#endif
|