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/*-
* modified for EXT2FS support in Lites 1.1
*
* Aug 1995, Godmar Back (gback@cs.utah.edu)
* University of Utah, Department of Computer Science
*/
/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1991, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)ffs_extern.h 8.3 (Berkeley) 4/16/94
* $FreeBSD$
*/
#ifndef _FS_EXT2FS_EXT2_EXTERN_H_
#define _FS_EXT2FS_EXT2_EXTERN_H_
struct ext2fs_dinode;
struct ext2fs_direct_2;
struct ext2fs_direct_tail;
struct ext2fs_searchslot;
struct indir;
struct inode;
struct mount;
struct vfsconf;
struct vnode;
int ext2_add_entry(struct vnode *, struct ext2fs_direct_2 *);
int ext2_alloc(struct inode *, daddr_t, e4fs_daddr_t, int,
struct ucred *, e4fs_daddr_t *);
e4fs_daddr_t ext2_alloc_meta(struct inode *ip);
int ext2_balloc(struct inode *,
e2fs_lbn_t, int, struct ucred *, struct buf **, int);
int ext2_blkatoff(struct vnode *, off_t, char **, struct buf **);
void ext2_blkfree(struct inode *, e4fs_daddr_t, long);
e4fs_daddr_t ext2_blkpref(struct inode *, e2fs_lbn_t, int, e2fs_daddr_t *,
e2fs_daddr_t);
int ext2_bmap(struct vop_bmap_args *);
int ext2_bmaparray(struct vnode *, daddr_t, daddr_t *, int *, int *);
int ext4_bmapext(struct vnode *, int32_t, int64_t *, int *, int *);
void ext2_clusteracct(struct m_ext2fs *, char *, int, e4fs_daddr_t, int);
void ext2_dirbad(struct inode *ip, doff_t offset, char *how);
int ext2_ei2i(struct ext2fs_dinode *, struct inode *);
int ext2_getlbns(struct vnode *, daddr_t, struct indir *, int *);
int ext2_i2ei(struct inode *, struct ext2fs_dinode *);
void ext2_itimes(struct vnode *vp);
int ext2_reallocblks(struct vop_reallocblks_args *);
int ext2_reclaim(struct vop_reclaim_args *);
int ext2_truncate(struct vnode *, off_t, int, struct ucred *, struct thread *);
int ext2_update(struct vnode *, int);
int ext2_valloc(struct vnode *, int, struct ucred *, struct vnode **);
int ext2_vfree(struct vnode *, ino_t, int);
int ext2_vinit(struct mount *, struct vop_vector *, struct vnode **vpp);
int ext2_lookup(struct vop_cachedlookup_args *);
int ext2_readdir(struct vop_readdir_args *);
#ifdef EXT2FS_PRINT_EXTENTS
void ext2_print_inode(struct inode *);
#endif
int ext2_direnter(struct inode *,
struct vnode *, struct componentname *);
int ext2_dirremove(struct vnode *, struct componentname *);
int ext2_dirrewrite(struct inode *,
struct inode *, struct componentname *);
int ext2_dirempty(struct inode *, ino_t, struct ucred *);
int ext2_checkpath(struct inode *, struct inode *, struct ucred *);
int ext2_cg_has_sb(struct m_ext2fs *fs, int cg);
uint64_t ext2_cg_number_gdb(struct m_ext2fs *fs, int cg);
int ext2_inactive(struct vop_inactive_args *);
int ext2_htree_add_entry(struct vnode *, struct ext2fs_direct_2 *,
struct componentname *);
int ext2_htree_create_index(struct vnode *, struct componentname *,
struct ext2fs_direct_2 *);
int ext2_htree_has_idx(struct inode *);
int ext2_htree_hash(const char *, int, uint32_t *, int, uint32_t *,
uint32_t *);
int ext2_htree_lookup(struct inode *, const char *, int, struct buf **,
int *, doff_t *, doff_t *, doff_t *, struct ext2fs_searchslot *);
int ext2_search_dirblock(struct inode *, void *, int *, const char *, int,
int *, doff_t *, doff_t *, doff_t *, struct ext2fs_searchslot *);
uint32_t e2fs_gd_get_ndirs(struct ext2_gd *gd);
uint64_t e2fs_gd_get_b_bitmap(struct ext2_gd *);
uint64_t e2fs_gd_get_i_bitmap(struct ext2_gd *);
uint64_t e2fs_gd_get_i_tables(struct ext2_gd *);
void ext2_sb_csum_set_seed(struct m_ext2fs *);
int ext2_sb_csum_verify(struct m_ext2fs *);
void ext2_sb_csum_set(struct m_ext2fs *);
int ext2_extattr_blk_csum_verify(struct inode *, struct buf *);
void ext2_extattr_blk_csum_set(struct inode *, struct buf *);
int ext2_dir_blk_csum_verify(struct inode *, struct buf *);
struct ext2fs_direct_tail *ext2_dirent_get_tail(struct inode *ip,
struct ext2fs_direct_2 *ep);
void ext2_dirent_csum_set(struct inode *, struct ext2fs_direct_2 *);
int ext2_dirent_csum_verify(struct inode *ip, struct ext2fs_direct_2 *ep);
void ext2_dx_csum_set(struct inode *, struct ext2fs_direct_2 *);
int ext2_dx_csum_verify(struct inode *ip, struct ext2fs_direct_2 *ep);
int ext2_extent_blk_csum_verify(struct inode *, void *);
void ext2_extent_blk_csum_set(struct inode *, void *);
void ext2_init_dirent_tail(struct ext2fs_direct_tail *);
int ext2_is_dirent_tail(struct inode *, struct ext2fs_direct_2 *);
int ext2_gd_i_bitmap_csum_verify(struct m_ext2fs *, int, struct buf *);
void ext2_gd_i_bitmap_csum_set(struct m_ext2fs *, int, struct buf *);
int ext2_gd_b_bitmap_csum_verify(struct m_ext2fs *, int, struct buf *);
void ext2_gd_b_bitmap_csum_set(struct m_ext2fs *, int, struct buf *);
int ext2_ei_csum_verify(struct inode *, struct ext2fs_dinode *);
void ext2_ei_csum_set(struct inode *, struct ext2fs_dinode *);
int ext2_gd_csum_verify(struct m_ext2fs *, struct cdev *);
void ext2_gd_csum_set(struct m_ext2fs *);
/* Flags to low-level allocation routines.
* The low 16-bits are reserved for IO_ flags from vnode.h.
*/
#define BA_CLRBUF 0x00010000 /* Clear invalid areas of buffer. */
#define BA_SEQMASK 0x7F000000 /* Bits holding seq heuristic. */
#define BA_SEQSHIFT 24
#define BA_SEQMAX 0x7F
extern struct vop_vector ext2_vnodeops;
extern struct vop_vector ext2_fifoops;
#endif /* !_FS_EXT2FS_EXT2_EXTERN_H_ */
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