xfs: provide a centralized method for verifying inline fork data
Replace the current haphazard dir2 shortform verifier callsites with a
centralized verifier function that can be called either with the default
verifier functions or with a custom set. This helps us strengthen
integrity checking while providing us with flexibility for repair tools.
xfs_repair wants this to be able to supply its own verifier functions
when trying to fix possibly corrupt metadata.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
diff --git a/fs/xfs/libxfs/xfs_inode_fork.h b/fs/xfs/libxfs/xfs_inode_fork.h
index b9f0098..dd8aba0 100644
--- a/fs/xfs/libxfs/xfs_inode_fork.h
+++ b/fs/xfs/libxfs/xfs_inode_fork.h
@@ -186,4 +186,18 @@ extern struct kmem_zone *xfs_ifork_zone;
extern void xfs_ifork_init_cow(struct xfs_inode *ip);
+typedef xfs_failaddr_t (*xfs_ifork_verifier_t)(struct xfs_inode *);
+
+struct xfs_ifork_ops {
+ xfs_ifork_verifier_t verify_symlink;
+ xfs_ifork_verifier_t verify_dir;
+ xfs_ifork_verifier_t verify_attr;
+};
+extern struct xfs_ifork_ops xfs_default_ifork_ops;
+
+xfs_failaddr_t xfs_ifork_verify_data(struct xfs_inode *ip,
+ struct xfs_ifork_ops *ops);
+xfs_failaddr_t xfs_ifork_verify_attr(struct xfs_inode *ip,
+ struct xfs_ifork_ops *ops);
+
#endif /* __XFS_INODE_FORK_H__ */