/* * Copyright (c) 1980, 1986 The Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms are permitted * provided that the above copyright notice and this paragraph are * duplicated in all such forms and that any documentation, * advertising materials, and other materials related to such * distribution and use acknowledge that the software was developed * by the University of California, Berkeley. The name of the * University may not be used to endorse or promote products derived * from this software without specific prior written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * * @(#)fsck.h 5.10 (Berkeley) 2/1/90 */ #ifdef AFS_HPUX_ENV #define MAXDUP 5000 /* limit on dup blks (per inode) */ #define MAXBAD 5000 /* limit on bad blks (per inode) */ #else #define MAXDUP 10 /* limit on dup blks (per inode) */ #define MAXBAD 10 /* limit on bad blks (per inode) */ #endif #define MAXBUFSPACE 128*1024 /* maximum space to allocate to buffers */ #ifndef BUFSIZ #define BUFSIZ 1024 #endif #define USTATE 01 /* inode not allocated */ #define FSTATE 02 /* inode is file */ #define DSTATE 03 /* inode is directory */ #define DFOUND 04 /* directory found during descent */ #define DCLEAR 05 /* directory is to be cleared */ #define FCLEAR 06 /* file is to be cleared */ #ifdef VICE #define VSTATE 07 /* inode is a AFS file system inode */ #endif /* VICE */ #ifdef AFS_HPUX_ENV #define ACLS 1 #endif #if defined(ACLS) && defined(AFS_HPUX_ENV) #define CSTATE 8 /* inode is a continuation inode */ #define CRSTATE 16 /* continuation inode has been referenced */ #define HASCINODE 32 /* has continuation inode associated with it */ #ifdef VICE #define STATE (USTATE|FSTATE|DSTATE|DCLEAR|CSTATE|CRSTATE|VSTATE) #else #define STATE (USTATE|FSTATE|DSTATE|DCLEAR|CSTATE|CRSTATE) #endif #endif /* ACLS */ #ifdef VICE #ifdef AFS_SUN_ENV /* The following define is in order to utilize one vfsck for SunOS 4.1 & 4.1.1; note * that the ic_flags and size.val[0] will be zero except for AFS inodes in 4.1.1... */ #if defined(AFS_SUN56_ENV) #define VICEINODE ((dp->di_vicemagic == VICEMAGIC) \ && (dp->di_mode & IFMT) == IFREG) #define OLDVICEINODE (!dp->di_ic.ic_uid && (dp->di_ic.ic_gid== 0xfffffffe)) #else #define VICEINODE (((dp->di_ic.ic_gen == VICEMAGIC) || \ (dp->di_ic.ic_flags || dp->di_ic.ic_size.val[0])) \ && (dp->di_mode & IFMT) == IFREG) #endif /* AFS_SUN56_ENV */ #else #define VICEINODE (IS_DVICEMAGIC(dp) && (dp->di_mode & IFMT) == IFREG) #endif #endif #if defined(AFS_SUN56_ENV) #define OFF_T offset_t #define UOFF_T u_offset_t #else #define OFF_T long #define UOFF_T long #endif /* AFS_SUN56_ENV */ /* * buffer cache structure. */ struct bufarea { struct bufarea *b_next; /* free list queue */ struct bufarea *b_prev; /* free list queue */ daddr_t b_bno; int b_size; int b_errs; int b_flags; union { char *b_buf; /* buffer space */ daddr_t *b_indir; /* indirect block */ struct fs *b_fs; /* super block */ struct cg *b_cg; /* cylinder group */ struct dinode *b_dinode; /* inode block */ } b_un; char b_dirty; }; #define B_INUSE 1 #define MINBUFS 5 /* minimum number of buffers required */ struct bufarea bufhead; /* head of list of other blks in filesys */ struct bufarea sblk; /* file system superblock */ struct bufarea cgblk; /* cylinder group blocks */ struct bufarea *getdatablk(); #define dirty(bp) (bp)->b_dirty = 1 #define initbarea(bp) \ (bp)->b_dirty = 0; \ (bp)->b_bno = (daddr_t)-1; \ (bp)->b_flags = 0; #define sbdirty() sblk.b_dirty = 1 #define cgdirty() cgblk.b_dirty = 1 #define sblock (*sblk.b_un.b_fs) #define cgrp (*cgblk.b_un.b_cg) #ifdef AFS_OSF_ENV /* * struct direct -> struct dirent */ #define direct dirent #endif /* AFS_OSF_ENV */ enum fixstate { DONTKNOW, NOFIX, FIX }; struct inodesc { enum fixstate id_fix; /* policy on fixing errors */ int (*id_func) (); /* function to be applied to blocks of inode */ ino_t id_number; /* inode number described */ ino_t id_parent; /* for DATA nodes, their parent */ daddr_t id_blkno; /* current block number being examined */ int id_numfrags; /* number of frags contained in block */ OFF_T id_filesize; /* for DATA nodes, the size of the directory */ int id_loc; /* for DATA nodes, current location in dir */ int id_entryno; /* for DATA nodes, current entry number */ struct direct *id_dirp; /* for DATA nodes, ptr to current entry */ char *id_name; /* for DATA nodes, name to find or enter */ char id_type; /* type of descriptor, DATA or ADDR */ }; /* file types */ #define DATA 1 #define ADDR 2 /* * Linked list of duplicate blocks. * * The list is composed of two parts. The first part of the * list (from duplist through the node pointed to by muldup) * contains a single copy of each duplicate block that has been * found. The second part of the list (from muldup to the end) * contains duplicate blocks that have been found more than once. * To check if a block has been found as a duplicate it is only * necessary to search from duplist through muldup. To find the * total number of times that a block has been found as a duplicate * the entire list must be searched for occurences of the block * in question. The following diagram shows a sample list where * w (found twice), x (found once), y (found three times), and z * (found once) are duplicate block numbers: * * w -> y -> x -> z -> y -> w -> y * ^ ^ * | | * duplist muldup */ struct dups { struct dups *next; daddr_t dup; }; struct dups *duplist; /* head of dup list */ struct dups *muldup; /* end of unique duplicate dup block numbers */ /* * Linked list of inodes with zero link counts. */ struct zlncnt { struct zlncnt *next; ino_t zlncnt; }; struct zlncnt *zlnhead; /* head of zero link count list */ char *devname; /* name of device being checked */ long dev_bsize; /* computed value of DEV_BSIZE */ long secsize; /* actual disk sector size */ char nflag; /* assume a no response */ char yflag; /* assume a yes response */ int bflag; /* location of alternate super block */ int qflag; /* less verbose flag */ int debug; /* output debugging info */ int cvtflag; /* convert to old file system format */ char preen; /* just fix normal inconsistencies */ char hotroot; /* checking root device */ char havesb; /* superblock has been read */ int fsmodified; /* 1 => write done to file system */ int fsreadfd; /* file descriptor for reading file system */ int fswritefd; /* file descriptor for writing file system */ daddr_t maxfsblock; /* number of blocks in the file system */ char *blockmap; /* ptr to primary blk allocation map */ ino_t maxino; /* number of inodes in file system */ ino_t lastino; /* last inode in use */ char *statemap; /* ptr to inode state table */ short *lncntp; /* ptr to link count table */ char pathname[BUFSIZ]; /* current pathname */ char *pathp; /* ptr to current position in pathname */ char *endpathname; /* ptr to current end of pathname */ ino_t lfdir; /* lost & found directory inode number */ char *lfname; /* lost & found directory name */ int lfmode; /* lost & found directory creation mode */ daddr_t n_blks; /* number of blocks in use */ daddr_t n_files; /* number of files in use */ #define clearinode(dp) (*(dp) = zino) struct dinode zino; /* only change i_gen if this is a VFS but not VICE fsck */ #ifdef VICE #define zapino(x) (*(x) = zino) #else #define zapino(x) zino.di_gen = (x)->di_gen+1; (*(x) = zino) #endif /* VICE */ int isconvert; /* converting */ #ifdef VICE int nViceFiles; /* number of vice files seen */ #if defined(AFS_SUN_ENV) int iscorrupt; /* known to be corrupt/inconsistent */ #endif #ifdef AFS_SUN_ENV char fixstate; /* is FsSTATE to be fixed */ char rebflg; /* needs reboot if set */ int isdirty; /* 1 => write pending to file system */ #endif /* AFS_SUN_ENV */ #ifdef AFS_SUN5_ENV #define FSTYPE_MAX 8 char *fstype; /* remount okay if clear */ char fflag; /* force fsck to check a mounted fs */ char mountedfs; /* checking mounted device */ int oflag; int mflag; int exitstat; int pflag; int fsflag; int rflag; /* check raw file systems */ #include FILE *logfile; /* additional place for log message, for non-root file systems */ #else /* AFS_SUN5_ENV */ #ifdef AFS_OSF_ENV FILE *logfile; /* additional place for log message, for non-root file systems */ char fflag; /* force fsck to check a mounted fs */ #else /* AFS_OSF_ENV */ struct _iobuf *logfile; /* additional place for log message, for non-root file systems */ #endif /* AFS_OSF_ENV */ #endif /* AFS_SUN5_ENV */ #endif /* VICE */ #define setbmap(blkno) setbit(blockmap, blkno) #define testbmap(blkno) isset(blockmap, blkno) #define clrbmap(blkno) clrbit(blockmap, blkno) #define STOP 0x01 #define SKIP 0x02 #define KEEPON 0x04 #define ALTERED 0x08 #define FOUND 0x10 #include /* for time() */ struct dinode *ginode(); struct bufarea *getblk(); ino_t allocino(); int findino(); /* global variables to be reset in new fork by "setup" */ struct bufarea *mlk_pbp; ino_t mlk_startinum; #ifdef AFS_SUN_ENV int setup(); struct mntent *mntdup(); #endif #if defined(AFS_HPUX_ENV) int pclean; #endif #ifdef AFS_HPUX_ENV char fflag; /* force fsck to check a mounted fs */ int pclean; int mflag; #define BLK ((dp->di_mode & IFMT) == IFBLK) #define CHR ((dp->di_mode & IFMT) == IFCHR) #define LNK ((dp->di_mode & IFMT) == IFLNK) #ifdef IC_FASTLINK #define FASTLNK (LNK && (dp->di_flags & IC_FASTLINK)) #else #define FASTLNK (0) #endif #if defined(ACLS) && defined(AFS_HPUX_ENV) daddr_t n_cont; /* number of continuation inodes seen */ #define CONT ((dp->di_mode & IFMT) == IFCONT) /* continuation inode */ #define SPECIAL (BLK || CHR || CONT) #else #define SPECIAL (BLK || CHR) #endif #endif /* AFS_HPUX_ENV */ #if defined(AFS_HPUX110_ENV) /* For backward compatibility */ #define cg_link cg_unused[0] #define cg_rlink cg_unused[1] #define fs_link fs_unused[0] #define fs_rlink fs_unused[1] #endif /* AFS_HPUX110_ENV */ #ifdef AFS_SUN59_ENV /* diskaddr_t is longlong */ int bread(int fd, char *buf, diskaddr_t blk, long size); int bwrite(int fd, char *buf, diskaddr_t blk, long size); #endif