/*- * 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 *); int ext2_bmap_seekdata(struct vnode *, off_t *); 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. * * The BA_CLRBUF flag specifies that the existing content of the block * will not be completely overwritten by the caller, so buffers for new * blocks must be cleared and buffers for existing blocks must be read. * When BA_CLRBUF is not set the buffer will be completely overwritten * and there is no reason to clear them or to spend I/O fetching existing * data. The BA_CLRBUF flag is handled in the ext2_balloc() functions. */ #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_ */