linux/fs/xfs/libxfs/xfs_types.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
 * Copyright (C) 2017 Oracle.
 * All Rights Reserved.
 */
#include "xfs.h"
#include "xfs_fs.h"
#include "xfs_format.h"
#include "xfs_shared.h"
#include "xfs_trans_resv.h"
#include "xfs_bit.h"
#include "xfs_mount.h"
#include "xfs_ag.h"


/*
 * Verify that an AG block number pointer neither points outside the AG
 * nor points at static metadata.
 */
static inline bool
xfs_verify_agno_agbno(
	struct xfs_mount	*mp,
	xfs_agnumber_t		agno,
	xfs_agblock_t		agbno)
{ … }

/*
 * Verify that an FS block number pointer neither points outside the
 * filesystem nor points at static AG metadata.
 */
inline bool
xfs_verify_fsbno(
	struct xfs_mount	*mp,
	xfs_fsblock_t		fsbno)
{ … }

/*
 * Verify that a data device extent is fully contained inside the filesystem,
 * does not cross an AG boundary, and does not point at static metadata.
 */
bool
xfs_verify_fsbext(
	struct xfs_mount	*mp,
	xfs_fsblock_t		fsbno,
	xfs_fsblock_t		len)
{ … }

/*
 * Verify that an AG inode number pointer neither points outside the AG
 * nor points at static metadata.
 */
static inline bool
xfs_verify_agno_agino(
	struct xfs_mount	*mp,
	xfs_agnumber_t		agno,
	xfs_agino_t		agino)
{ … }

/*
 * Verify that an FS inode number pointer neither points outside the
 * filesystem nor points at static AG metadata.
 */
inline bool
xfs_verify_ino(
	struct xfs_mount	*mp,
	xfs_ino_t		ino)
{ … }

/* Is this an internal inode number? */
inline bool
xfs_internal_inum(
	struct xfs_mount	*mp,
	xfs_ino_t		ino)
{ … }

/*
 * Verify that a directory entry's inode number doesn't point at an internal
 * inode, empty space, or static AG metadata.
 */
bool
xfs_verify_dir_ino(
	struct xfs_mount	*mp,
	xfs_ino_t		ino)
{ … }

/*
 * Verify that an realtime block number pointer doesn't point off the
 * end of the realtime device.
 */
inline bool
xfs_verify_rtbno(
	struct xfs_mount	*mp,
	xfs_rtblock_t		rtbno)
{ … }

/* Verify that a realtime device extent is fully contained inside the volume. */
bool
xfs_verify_rtbext(
	struct xfs_mount	*mp,
	xfs_rtblock_t		rtbno,
	xfs_filblks_t		len)
{ … }

/* Calculate the range of valid icount values. */
inline void
xfs_icount_range(
	struct xfs_mount	*mp,
	unsigned long long	*min,
	unsigned long long	*max)
{ … }

/* Sanity-checking of inode counts. */
bool
xfs_verify_icount(
	struct xfs_mount	*mp,
	unsigned long long	icount)
{ … }

/* Sanity-checking of dir/attr block offsets. */
bool
xfs_verify_dablk(
	struct xfs_mount	*mp,
	xfs_fileoff_t		dabno)
{ … }

/* Check that a file block offset does not exceed the maximum. */
bool
xfs_verify_fileoff(
	struct xfs_mount	*mp,
	xfs_fileoff_t		off)
{ … }

/* Check that a range of file block offsets do not exceed the maximum. */
bool
xfs_verify_fileext(
	struct xfs_mount	*mp,
	xfs_fileoff_t		off,
	xfs_fileoff_t		len)
{ … }