2fe8fb192f
There is important information about booting non-ack images in docs/UPDATING. ack/aout-format images can't be built any more, and booting clang/ELF-format ones is a little different. Updating to the new boot monitor is recommended. Changes in this commit: . drop boot monitor -> allowing dropping ack support . facility to copy ELF boot files to /boot so that old boot monitor can still boot fairly easily, see UPDATING . no more ack-format libraries -> single-case libraries . some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases . drop several ack toolchain commands, but not all support commands (e.g. aal is gone but acksize is not yet). . a few libc files moved to netbsd libc dir . new /bin/date as minix date used code in libc/ . test compile fix . harmonize includes . /usr/lib is no longer special: without ack, /usr/lib plays no kind of special bootstrapping role any more and bootstrapping is done exclusively through packages, so releases depend even less on the state of the machine making them now. . rename nbsd_lib* to lib* . reduce mtree
301 lines
11 KiB
C
301 lines
11 KiB
C
/* $NetBSD: inode.h,v 1.58 2011/07/12 02:22:13 dholland Exp $ */
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/*
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* Copyright (c) 1982, 1989, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)inode.h 8.9 (Berkeley) 5/14/95
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*/
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#ifndef _UFS_UFS_INODE_H_
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#define _UFS_UFS_INODE_H_
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#include <sys/vnode.h>
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#include <ufs/ufs/dinode.h>
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#include <ufs/ufs/dir.h>
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#include <ufs/ufs/quota.h>
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#include <ufs/ext2fs/ext2fs_dinode.h>
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#include <miscfs/genfs/genfs_node.h>
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/*
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* Lookup result state (other than the result inode). This is
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* currently stashed in the vnode between VOP_LOOKUP and directory
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* operation VOPs, which is gross.
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*/
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struct ufs_lookup_results {
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int32_t ulr_count; /* Size of free slot in directory. */
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doff_t ulr_endoff; /* End of useful stuff in directory. */
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doff_t ulr_diroff; /* Offset in dir, where we found last entry. */
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doff_t ulr_offset; /* Offset of free space in directory. */
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u_int32_t ulr_reclen; /* Size of found directory entry. */
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};
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/* notyet XXX */
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#define UFS_CHECK_CRAPCOUNTER(dp) ((void)(dp)->i_crapcounter)
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/*
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* Per-filesystem inode extensions.
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*/
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struct ffs_inode_ext {
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daddr_t *ffs_snapblklist; /* Collect expunged snapshot blocks. */
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/* follow two fields are used by contiguous allocation code only. */
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daddr_t ffs_first_data_blk; /* first data block on disk. */
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daddr_t ffs_first_indir_blk; /* first indirect block on disk. */
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};
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struct ext2fs_inode_ext {
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daddr_t ext2fs_last_lblk; /* last logical block allocated */
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daddr_t ext2fs_last_blk; /* last block allocated on disk */
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};
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struct lfs_inode_ext;
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/*
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* The inode is used to describe each active (or recently active) file in the
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* UFS filesystem. It is composed of two types of information. The first part
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* is the information that is needed only while the file is active (such as
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* the identity of the file and linkage to speed its lookup). The second part
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* is the permanent meta-data associated with the file which is read in
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* from the permanent dinode from long term storage when the file becomes
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* active, and is put back when the file is no longer being used.
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*/
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struct inode {
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struct genfs_node i_gnode;
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LIST_ENTRY(inode) i_hash;/* Hash chain. */
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TAILQ_ENTRY(inode) i_nextsnap; /* snapshot file list. */
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struct vnode *i_vnode; /* Vnode associated with this inode. */
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struct ufsmount *i_ump; /* Mount point associated with this inode. */
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struct vnode *i_devvp; /* Vnode for block I/O. */
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u_int32_t i_flag; /* flags, see below */
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dev_t i_dev; /* Device associated with the inode. */
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ino_t i_number; /* The identity of the inode. */
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union { /* Associated filesystem. */
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struct fs *fs; /* FFS */
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struct lfs *lfs; /* LFS */
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struct m_ext2fs *e2fs; /* EXT2FS */
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} inode_u;
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#define i_fs inode_u.fs
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#define i_lfs inode_u.lfs
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#define i_e2fs inode_u.e2fs
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void *i_unused1; /* Unused. */
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struct dquot *i_dquot[MAXQUOTAS]; /* Dquot structures. */
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u_quad_t i_modrev; /* Revision level for NFS lease. */
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struct lockf *i_lockf;/* Head of byte-level lock list. */
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/*
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* Side effects; used during (and after) directory lookup.
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* XXX should not be here.
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*/
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struct ufs_lookup_results i_crap;
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unsigned i_crapcounter; /* serial number for i_crap */
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/*
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* Inode extensions
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*/
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union {
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/* Other extensions could go here... */
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struct ffs_inode_ext ffs;
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struct ext2fs_inode_ext e2fs;
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struct lfs_inode_ext *lfs;
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} inode_ext;
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#define i_snapblklist inode_ext.ffs.ffs_snapblklist
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#define i_ffs_first_data_blk inode_ext.ffs.ffs_first_data_blk
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#define i_ffs_first_indir_blk inode_ext.ffs.ffs_first_indir_blk
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#define i_e2fs_last_lblk inode_ext.e2fs.ext2fs_last_lblk
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#define i_e2fs_last_blk inode_ext.e2fs.ext2fs_last_blk
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/*
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* Copies from the on-disk dinode itself.
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*
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* These fields are currently only used by FFS and LFS,
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* do NOT use them with ext2fs.
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*/
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u_int16_t i_mode; /* IFMT, permissions; see below. */
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int16_t i_nlink; /* File link count. */
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u_int64_t i_size; /* File byte count. */
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u_int32_t i_flags; /* Status flags (chflags). */
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int32_t i_gen; /* Generation number. */
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u_int32_t i_uid; /* File owner. */
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u_int32_t i_gid; /* File group. */
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u_int16_t i_omode; /* Old mode, for ufs_reclaim. */
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struct dirhash *i_dirhash; /* Hashing for large directories */
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/*
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* The on-disk dinode itself.
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*/
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union {
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struct ufs1_dinode *ffs1_din; /* 128 bytes of the on-disk dinode. */
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struct ufs2_dinode *ffs2_din;
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struct ext2fs_dinode *e2fs_din; /* 128 bytes of the on-disk
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dinode. */
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} i_din;
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};
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#define i_ffs1_atime i_din.ffs1_din->di_atime
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#define i_ffs1_atimensec i_din.ffs1_din->di_atimensec
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#define i_ffs1_blocks i_din.ffs1_din->di_blocks
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#define i_ffs1_ctime i_din.ffs1_din->di_ctime
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#define i_ffs1_ctimensec i_din.ffs1_din->di_ctimensec
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#define i_ffs1_db i_din.ffs1_din->di_db
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#define i_ffs1_flags i_din.ffs1_din->di_flags
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#define i_ffs1_gen i_din.ffs1_din->di_gen
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#define i_ffs1_gid i_din.ffs1_din->di_gid
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#define i_ffs1_ib i_din.ffs1_din->di_ib
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#define i_ffs1_mode i_din.ffs1_din->di_mode
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#define i_ffs1_mtime i_din.ffs1_din->di_mtime
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#define i_ffs1_mtimensec i_din.ffs1_din->di_mtimensec
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#define i_ffs1_nlink i_din.ffs1_din->di_nlink
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#define i_ffs1_rdev i_din.ffs1_din->di_rdev
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#define i_ffs1_size i_din.ffs1_din->di_size
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#define i_ffs1_uid i_din.ffs1_din->di_uid
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#define i_ffs1_ouid i_din.ffs1_din->di_u.oldids[0]
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#define i_ffs1_ogid i_din.ffs1_din->di_u.oldids[1]
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#define i_ffs2_atime i_din.ffs2_din->di_atime
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#define i_ffs2_atimensec i_din.ffs2_din->di_atimensec
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#define i_ffs2_birthtime i_din.ffs2_din->di_birthtime
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#define i_ffs2_birthnsec i_din.ffs2_din->di_birthnsec
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#define i_ffs2_blocks i_din.ffs2_din->di_blocks
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#define i_ffs2_blksize i_din.ffs2_din->di_blksize
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#define i_ffs2_ctime i_din.ffs2_din->di_ctime
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#define i_ffs2_ctimensec i_din.ffs2_din->di_ctimensec
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#define i_ffs2_db i_din.ffs2_din->di_db
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#define i_ffs2_flags i_din.ffs2_din->di_flags
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#define i_ffs2_gen i_din.ffs2_din->di_gen
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#define i_ffs2_gid i_din.ffs2_din->di_gid
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#define i_ffs2_ib i_din.ffs2_din->di_ib
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#define i_ffs2_mode i_din.ffs2_din->di_mode
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#define i_ffs2_mtime i_din.ffs2_din->di_mtime
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#define i_ffs2_mtimensec i_din.ffs2_din->di_mtimensec
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#define i_ffs2_nlink i_din.ffs2_din->di_nlink
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#define i_ffs2_rdev i_din.ffs2_din->di_rdev
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#define i_ffs2_size i_din.ffs2_din->di_size
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#define i_ffs2_uid i_din.ffs2_din->di_uid
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#define i_ffs2_kernflags i_din.ffs2_din->di_kernflags
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#define i_ffs2_extsize i_din.ffs2_din->di_extsize
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#define i_ffs2_extb i_din.ffs2_din->di_extb
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#define i_e2fs_mode i_din.e2fs_din->e2di_mode
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#define i_e2fs_uid i_din.e2fs_din->e2di_uid
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#define i_e2fs_size i_din.e2fs_din->e2di_size
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#define i_e2fs_atime i_din.e2fs_din->e2di_atime
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#define i_e2fs_ctime i_din.e2fs_din->e2di_ctime
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#define i_e2fs_mtime i_din.e2fs_din->e2di_mtime
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#define i_e2fs_dtime i_din.e2fs_din->e2di_dtime
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#define i_e2fs_gid i_din.e2fs_din->e2di_gid
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#define i_e2fs_nlink i_din.e2fs_din->e2di_nlink
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#define i_e2fs_nblock i_din.e2fs_din->e2di_nblock
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#define i_e2fs_flags i_din.e2fs_din->e2di_flags
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#define i_e2fs_blocks i_din.e2fs_din->e2di_blocks
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#define i_e2fs_gen i_din.e2fs_din->e2di_gen
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#define i_e2fs_facl i_din.e2fs_din->e2di_facl
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#define i_e2fs_dacl i_din.e2fs_din->e2di_dacl
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#define i_e2fs_faddr i_din.e2fs_din->e2di_faddr
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#define i_e2fs_nfrag i_din.e2fs_din->e2di_nfrag
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#define i_e2fs_fsize i_din.e2fs_din->e2di_fsize
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#define i_e2fs_rdev i_din.e2fs_din->e2di_rdev
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#define i_e2fs_uid_high i_din.e2fs_din->e2di_uid_high
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#define i_e2fs_gid_high i_din.e2fs_din->e2di_gid_high
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/* These flags are kept in i_flag. */
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#define IN_ACCESS 0x0001 /* Access time update request. */
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#define IN_CHANGE 0x0002 /* Inode change time update request. */
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#define IN_UPDATE 0x0004 /* Inode was written to; update mtime. */
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#define IN_MODIFY 0x2000 /* Modification time update request. */
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#define IN_MODIFIED 0x0008 /* Inode has been modified. */
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#define IN_ACCESSED 0x0010 /* Inode has been accessed. */
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#define IN_RENAME 0x0020 /* Inode is being renamed. */
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#define IN_SHLOCK 0x0040 /* File has shared lock. */
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#define IN_EXLOCK 0x0080 /* File has exclusive lock. */
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#define IN_CLEANING 0x0100 /* LFS: file is being cleaned */
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#define IN_ADIROP 0x0200 /* LFS: dirop in progress */
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#define IN_SPACECOUNTED 0x0400 /* Blocks to be freed in free count. */
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#define IN_PAGING 0x1000 /* LFS: file is on paging queue */
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#if defined(_KERNEL)
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/*
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* The DIP macro is used to access fields in the dinode that are
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* not cached in the inode itself.
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*/
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#define DIP(ip, field) \
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(((ip)->i_ump->um_fstype == UFS1) ? \
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(ip)->i_ffs1_##field : (ip)->i_ffs2_##field)
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#define DIP_ASSIGN(ip, field, value) \
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do { \
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if ((ip)->i_ump->um_fstype == UFS1) \
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(ip)->i_ffs1_##field = (value); \
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else \
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(ip)->i_ffs2_##field = (value); \
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} while(0)
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#define DIP_ADD(ip, field, value) \
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do { \
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if ((ip)->i_ump->um_fstype == UFS1) \
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(ip)->i_ffs1_##field += (value); \
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else \
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(ip)->i_ffs2_##field += (value); \
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} while(0)
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#define SHORTLINK(ip) \
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(((ip)->i_ump->um_fstype == UFS1) ? \
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(void *)(ip)->i_ffs1_db : (void *)(ip)->i_ffs2_db)
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/*
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* Structure used to pass around logical block paths generated by
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* ufs_getlbns and used by truncate and bmap code.
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*/
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struct indir {
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daddr_t in_lbn; /* Logical block number. */
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int in_off; /* Offset in buffer. */
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int in_exists; /* Flag if the block exists. */
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};
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/* Convert between inode pointers and vnode pointers. */
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#define VTOI(vp) ((struct inode *)(vp)->v_data)
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#define ITOV(ip) ((ip)->i_vnode)
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/* This overlays the fid structure (see fstypes.h). */
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struct ufid {
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u_int16_t ufid_len; /* Length of structure. */
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u_int16_t ufid_pad; /* Force 32-bit alignment. */
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u_int32_t ufid_ino; /* File number (ino). */
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int32_t ufid_gen; /* Generation number. */
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};
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#endif /* _KERNEL */
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#endif /* !_UFS_UFS_INODE_H_ */
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