-static char *sccsid = "@(#)main.c 1.30 (Berkeley) %G%";
+#ifndef lint
+char version[] = "@(#)main.c 2.30 (Berkeley) %G%";
+#endif
#include <stdio.h>
#include <ctype.h>
-#include "../h/param.h"
-#include "../h/fs.h"
-#include "../h/inode.h"
-#include "../h/stat.h"
-#include "../h/ostat.h"
-#include <ndir.h>
+#include <sys/param.h>
+#include <sys/fs.h>
+#include <sys/inode.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
#include <fstab.h>
+#define KERNEL
+#include <sys/dir.h>
+#undef KERNEL
+
+/* RECONSTRUCT ONLY BAD CG IN PASS 6 */
typedef int (*SIG_TYP)();
#define MAXNINDIR (MAXBSIZE / sizeof (daddr_t))
#define MAXINOPB (MAXBSIZE / sizeof (struct dinode))
#define SPERB (MAXBSIZE / sizeof(short))
+#define MINDIRSIZE (sizeof (struct dirtemplate))
#define MAXDUP 10 /* limit on dup blks (per inode) */
#define MAXBAD 10 /* limit on bad blks (per inode) */
#define REG ((dp->di_mode & IFMT) == IFREG)
#define BLK ((dp->di_mode & IFMT) == IFBLK)
#define CHR ((dp->di_mode & IFMT) == IFCHR)
+#define LNK ((dp->di_mode & IFMT) == IFLNK)
+#define SOCK ((dp->di_mode & IFMT) == IFSOCK)
+#define BADBLK ((dp->di_mode & IFMT) == IFMT)
#define SPECIAL (BLK || CHR)
-ino_t startinum; /* blk num of first in raw area */
-
struct bufarea {
struct bufarea *b_next; /* must be first */
daddr_t b_bno;
BUFAREA inoblk; /* inode blocks */
BUFAREA fileblk; /* other blks in filesys */
BUFAREA sblk; /* file system superblock */
-BUFAREA cgblk;
+BUFAREA cgblk; /* cylinder group blocks */
#define initbarea(x) (x)->b_dirty = 0;(x)->b_bno = (daddr_t)-1
#define dirty(x) (x)->b_dirty = 1
int mod;
} dfile; /* file descriptors for filesys */
+struct inodesc {
+ char id_type; /* type of descriptor, DATA or ADDR */
+ 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 */
+ long 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 */
+ DIRECT *id_dirp; /* for data nodes, ptr to current entry */
+ enum {DONTKNOW, NOFIX, FIX} id_fix; /* policy on fixing errors */
+};
+/* file types */
+#define DATA 1
+#define ADDR 2
+
+
#define DUPTBLSIZE 100 /* num of dup blocks to remember */
daddr_t duplist[DUPTBLSIZE]; /* dup block table */
daddr_t *enddup; /* next entry in dup table */
daddr_t *muldup; /* multiple dups part of table */
-#define MAXLNCNT 20 /* num zero link cnts to remember */
+#define MAXLNCNT 500 /* num zero link cnts to remember */
ino_t badlncnt[MAXLNCNT]; /* table of inos with zero link cnts */
ino_t *badlnp; /* next entry in table */
char *statemap; /* ptr to inode state table */
short *lncntp; /* ptr to link count table */
-char *pathp; /* pointer to pathname position */
-char *thisname; /* ptr to current pathname component */
char *srchname; /* name being searched for in dir */
-char pathname[BUFSIZ];
+char pathname[BUFSIZ]; /* current pathname */
+char *pathp; /* pointer to pathname position */
+char *endpathname = &pathname[BUFSIZ - 2];
char *lfname = "lost+found";
-ino_t inum; /* inode we are currently working on */
ino_t imax; /* number of inodes */
-ino_t parentdir; /* i number of parent directory */
ino_t lastino; /* hiwater mark of inodes */
ino_t lfdir; /* lost & found directory */
-ino_t orphan; /* orphaned inode */
-off_t filsize; /* num blks seen in file */
off_t maxblk; /* largest logical blk in file */
off_t bmapsz; /* num chars in blockmap */
int inosumbad;
int offsumbad;
int frsumbad;
+int sbsumbad;
#define zapino(x) (*(x) = zino)
struct dinode zino;
-#define setlncnt(x) (lncntp[inum] = x)
-#define getlncnt() (lncntp[inum])
-#define declncnt() (--lncntp[inum])
-
#define setbmap(x) setbit(blockmap, x)
#define getbmap(x) isset(blockmap, x)
#define clrbmap(x) clrbit(blockmap, x)
#define getfmap(x) isset(freemap, x)
#define clrfmap(x) clrbit(freemap, x)
-#define setstate(x) (statemap[inum] = x)
-#define getstate() statemap[inum]
-
-#define DATA 1
-#define ADDR 0
-
-#define ALTERD 010
+#define ALTERED 010
#define KEEPON 04
#define SKIP 02
#define STOP 01
long lseek();
time_t time();
DINODE *ginode();
+DIRECT *fsck_readdir();
BUFAREA *getblk();
-int dirscan();
-int findino();
int catch();
-int mkentry();
-int chgdd();
-int pass1(), pass1b(), pass2(), pass4(), pass5();
-int (*pfunc)();
-char *rawname(), *rindex(), *unrawname();
+int findino(), mkentry(), chgdd();
+int pass1check(), pass1bcheck(), pass2check(), pass4check();
+char *rawname(), *unrawname();
+char *calloc(), *strcpy(), *strcat(), *rindex();
extern int inside[], around[];
extern unsigned char *fragtbl[];
break;
case 'b':
- bflag = atoi(argv[0]+1);
+ if (argv[0][1] != '\0') {
+ bflag = atoi(argv[0]+1);
+ } else {
+ bflag = atoi(*++argv);
+ argc--;
+ }
printf("Alternate super block location: %d\n", bflag);
break;
}
}
if (signal(SIGINT, SIG_IGN) != SIG_IGN)
- signal(SIGINT, catch);
+ (void)signal(SIGINT, catch);
if (argc) {
while (argc-- > 0) {
hotroot = 0;
- check(*argv++);
+ checkfilesys(*argv++);
}
exit(0);
}
errexit("Can't open checklist file: %s\n", FSTAB);
while ((fsp = getfsent()) != 0) {
if (strcmp(fsp->fs_type, FSTAB_RW) &&
- strcmp(fsp->fs_type, FSTAB_RO))
+ strcmp(fsp->fs_type, FSTAB_RO) &&
+ strcmp(fsp->fs_type, FSTAB_RQ))
continue;
if (preen == 0 ||
passno == 1 && fsp->fs_passno == passno) {
}
}
if (preen) {
- int status;
+ union wait status;
while (wait(&status) != -1)
- sumstatus |= status;
+ sumstatus |= status.w_retcode;
}
passno++;
} while (anygtr);
if (sumstatus)
exit(8);
- endfsent();
+ (void)endfsent();
exit(0);
}
blockcheck(name)
char *name;
{
- struct ostat stslash, stblock, stchar;
+ struct stat stslash, stblock, stchar;
char *raw;
int looped = 0;
hotroot++;
raw = unrawname(name);
}
- check(raw);
+ checkfilesys(raw);
return (1);
} else {
error("%s is not a character device\n", raw);
return (0);
}
-char *
-unrawname(cp)
- char *cp;
+checkfilesys(filesys)
+ char *filesys;
{
- char *dp = rindex(cp, '/');
- struct ostat stb;
- if (dp == 0)
- return (cp);
- if (stat(cp, &stb) < 0)
- return (cp);
- if ((stb.st_mode&S_IFMT) != S_IFCHR)
- return (cp);
- if (*(dp+1) != 'r')
- return (cp);
- strcpy(dp+1, dp+2);
- return (cp);
-}
+ devname = filesys;
+ if (setup(filesys) == 0) {
+ if (preen)
+ pfatal("CAN'T CHECK FILE SYSTEM.");
+ return;
+ }
+/* 1: scan inodes tallying blocks used */
+ if (preen == 0) {
+ printf("** Last Mounted on %s\n", sblock.fs_fsmnt);
+ if (hotroot)
+ printf("** Root file system\n");
+ printf("** Phase 1 - Check Blocks and Sizes\n");
+ }
+ pass1();
-char *
-rawname(cp)
- char *cp;
-{
- static char rawbuf[32];
- char *dp = rindex(cp, '/');
+/* 1b: locate first references to duplicates, if any */
+ if (enddup != &duplist[0]) {
+ if (preen)
+ pfatal("INTERNAL ERROR: dups with -p");
+ printf("** Phase 1b - Rescan For More DUPS\n");
+ pass1b();
+ }
- if (dp == 0)
- return (0);
- *dp = 0;
- strcpy(rawbuf, cp);
- *dp = '/';
- strcat(rawbuf, "/r");
- strcat(rawbuf, dp+1);
- return (rawbuf);
+/* 2: traverse directories from root to mark all connected directories */
+ if (preen == 0)
+ printf("** Phase 2 - Check Pathnames\n");
+ pass2();
+
+/* 3: scan inodes looking for disconnected directories */
+ if (preen == 0)
+ printf("** Phase 3 - Check Connectivity\n");
+ pass3();
+
+/* 4: scan inodes looking for disconnected files; check reference counts */
+ if (preen == 0)
+ printf("** Phase 4 - Check Reference Counts\n");
+ pass4();
+
+/* 5: check resource counts in cylinder groups */
+ if (preen == 0)
+ printf("** Phase 5 - Check Cyl groups\n");
+ pass5();
+
+ if (fixcg) {
+ if (preen == 0)
+ printf("** Phase 6 - Salvage Cylinder Groups\n");
+ makecg();
+ n_ffree = sblock.fs_cstotal.cs_nffree;
+ n_bfree = sblock.fs_cstotal.cs_nbfree;
+ }
+
+ pwarn("%d files, %d used, %d free (%d frags, %d blocks)\n",
+ n_files, n_blks - howmany(sblock.fs_cssize, sblock.fs_fsize),
+ n_ffree + sblock.fs_frag * n_bfree, n_ffree, n_bfree);
+ if (dfile.mod) {
+ (void)time(&sblock.fs_time);
+ sbdirty();
+ }
+ ckfini();
+ free(blockmap);
+ free(freemap);
+ free(statemap);
+ free((char *)lncntp);
+ if (!dfile.mod)
+ return;
+ if (!preen) {
+ printf("\n***** FILE SYSTEM WAS MODIFIED *****\n");
+ if (hotroot)
+ printf("\n***** REBOOT UNIX *****\n");
+ }
+ if (hotroot) {
+ sync();
+ exit(4);
+ }
}
-check(dev)
+setup(dev)
char *dev;
{
- register DINODE *dp;
- register ino_t *blp;
- register int i, n;
- ino_t savino;
- int b, c;
- daddr_t d, s;
-
- devname = dev;
- if (setup(dev) == 0) {
+ dev_t rootdev;
+ struct stat statb;
+ daddr_t super = bflag ? bflag : SBLOCK;
+ int i, j, c, d, cgd;
+ long size;
+ BUFAREA asblk;
+# define altsblock asblk.b_un.b_fs
+
+ if (stat("/", &statb) < 0)
+ errexit("Can't stat root\n");
+ rootdev = statb.st_dev;
+ if (stat(dev, &statb) < 0) {
+ error("Can't stat %s\n", dev);
+ return (0);
+ }
+ rawflg = 0;
+ if ((statb.st_mode & S_IFMT) == S_IFBLK)
+ ;
+ else if ((statb.st_mode & S_IFMT) == S_IFCHR)
+ rawflg++;
+ else {
+ if (reply("file is not a block or character device; OK") == 0)
+ return (0);
+ }
+ if (rootdev == statb.st_rdev)
+ hotroot++;
+ if ((dfile.rfdes = open(dev, 0)) < 0) {
+ error("Can't open %s\n", dev);
+ return (0);
+ }
+ if (preen == 0)
+ printf("** %s", dev);
+ if (nflag || (dfile.wfdes = open(dev, 1)) < 0) {
+ dfile.wfdes = -1;
if (preen)
- pfatal("CAN'T CHECK DEVICE.");
- return;
+ pfatal("NO WRITE ACCESS");
+ printf(" (NO WRITE)");
}
-/* 1 */
- if (preen==0) {
- if (hotroot)
- printf("** Root file system\n");
- printf("** Phase 1 - Check Blocks and Sizes\n");
+ if (preen == 0)
+ printf("\n");
+ fixcg = 0; inosumbad = 0; offsumbad = 0; frsumbad = 0; sbsumbad = 0;
+ dfile.mod = 0;
+ n_files = n_blks = n_ffree = n_bfree = 0;
+ muldup = enddup = &duplist[0];
+ badlnp = &badlncnt[0];
+ lfdir = 0;
+ rplyflag = 0;
+ initbarea(&sblk);
+ initbarea(&fileblk);
+ initbarea(&inoblk);
+ initbarea(&cgblk);
+ initbarea(&asblk);
+ /*
+ * Read in the super block and its summary info.
+ */
+ if (bread(&dfile, (char *)&sblock, super, (long)SBSIZE) == 0)
+ return (0);
+ sblk.b_bno = super;
+ sblk.b_size = SBSIZE;
+ /*
+ * run a few consistency checks of the super block
+ */
+ if (sblock.fs_magic != FS_MAGIC)
+ { badsb("MAGIC NUMBER WRONG"); return (0); }
+ if (sblock.fs_ncg < 1)
+ { badsb("NCG OUT OF RANGE"); return (0); }
+ if (sblock.fs_cpg < 1 || sblock.fs_cpg > MAXCPG)
+ { badsb("CPG OUT OF RANGE"); return (0); }
+ if (sblock.fs_ncg * sblock.fs_cpg < sblock.fs_ncyl ||
+ (sblock.fs_ncg - 1) * sblock.fs_cpg >= sblock.fs_ncyl)
+ { badsb("NCYL DOES NOT JIVE WITH NCG*CPG"); return (0); }
+ if (sblock.fs_sbsize > SBSIZE)
+ { badsb("SIZE PREPOSTEROUSLY LARGE"); return (0); }
+ /*
+ * Set all possible fields that could differ, then do check
+ * of whole super block against an alternate super block.
+ * When an alternate super-block is specified this check is skipped.
+ */
+ if (bflag)
+ goto sbok;
+ if (getblk(&asblk, cgsblock(&sblock, sblock.fs_ncg - 1),
+ sblock.fs_sbsize) == 0)
+ return (0);
+ altsblock.fs_link = sblock.fs_link;
+ altsblock.fs_rlink = sblock.fs_rlink;
+ altsblock.fs_time = sblock.fs_time;
+ altsblock.fs_cstotal = sblock.fs_cstotal;
+ altsblock.fs_cgrotor = sblock.fs_cgrotor;
+ altsblock.fs_fmod = sblock.fs_fmod;
+ altsblock.fs_clean = sblock.fs_clean;
+ altsblock.fs_ronly = sblock.fs_ronly;
+ altsblock.fs_flags = sblock.fs_flags;
+ altsblock.fs_maxcontig = sblock.fs_maxcontig;
+ altsblock.fs_minfree = sblock.fs_minfree;
+ altsblock.fs_rotdelay = sblock.fs_rotdelay;
+ altsblock.fs_maxbpg = sblock.fs_maxbpg;
+ bcopy((char *)sblock.fs_csp, (char *)altsblock.fs_csp,
+ sizeof sblock.fs_csp);
+ bcopy((char *)sblock.fs_fsmnt, (char *)altsblock.fs_fsmnt,
+ sizeof sblock.fs_fsmnt);
+ if (bcmp((char *)&sblock, (char *)&altsblock, (int)sblock.fs_sbsize))
+ { badsb("TRASHED VALUES IN SUPER BLOCK"); return (0); }
+sbok:
+ fmax = sblock.fs_size;
+ imax = sblock.fs_ncg * sblock.fs_ipg;
+ n_bad = cgsblock(&sblock, 0); /* boot block plus dedicated sblock */
+ /*
+ * read in the summary info.
+ */
+ for (i = 0, j = 0; i < sblock.fs_cssize; i += sblock.fs_bsize, j++) {
+ size = sblock.fs_cssize - i < sblock.fs_bsize ?
+ sblock.fs_cssize - i : sblock.fs_bsize;
+ sblock.fs_csp[j] = (struct csum *)calloc(1, (unsigned)size);
+ if (bread(&dfile, (char *)sblock.fs_csp[j],
+ fsbtodb(&sblock, sblock.fs_csaddr + j * sblock.fs_frag),
+ size) == 0)
+ return (0);
}
- pfunc = pass1;
- inum = 0;
- n_blks += howmany(sblock.fs_cssize, sblock.fs_bsize) * sblock.fs_frag;
+ /*
+ * allocate and initialize the necessary maps
+ */
+ bmapsz = roundup(howmany(fmax, NBBY), sizeof(short));
+ blockmap = calloc((unsigned)bmapsz, sizeof (char));
+ if (blockmap == NULL) {
+ printf("cannot alloc %d bytes for blockmap\n", bmapsz);
+ goto badsb;
+ }
+ freemap = calloc((unsigned)bmapsz, sizeof (char));
+ if (freemap == NULL) {
+ printf("cannot alloc %d bytes for freemap\n", bmapsz);
+ goto badsb;
+ }
+ statemap = calloc((unsigned)(imax + 1), sizeof(char));
+ if (statemap == NULL) {
+ printf("cannot alloc %d bytes for statemap\n", imax + 1);
+ goto badsb;
+ }
+ lncntp = (short *)calloc((unsigned)(imax + 1), sizeof(short));
+ if (lncntp == NULL) {
+ printf("cannot alloc %d bytes for lncntp\n",
+ (imax + 1) * sizeof(short));
+ goto badsb;
+ }
+ for (c = 0; c < sblock.fs_ncg; c++) {
+ cgd = cgdmin(&sblock, c);
+ if (c == 0) {
+ d = cgbase(&sblock, c);
+ cgd += howmany(sblock.fs_cssize, sblock.fs_fsize);
+ } else
+ d = cgsblock(&sblock, c);
+ for (; d < cgd; d++)
+ setbmap(d);
+ }
+
+ return (1);
+
+badsb:
+ ckfini();
+ return (0);
+# undef altsblock
+}
+
+pass1()
+{
+ register int c, i, n, j;
+ register DINODE *dp;
+ int ndb, partial;
+ struct inodesc idesc;
+ ino_t inumber;
+
+ bzero((char *)&idesc, sizeof(struct inodesc));
+ idesc.id_type = ADDR;
+ idesc.id_func = pass1check;
+ inumber = 0;
+ n_blks += howmany(sblock.fs_cssize, sblock.fs_fsize);
for (c = 0; c < sblock.fs_ncg; c++) {
if (getblk(&cgblk, cgtod(&sblock, c), sblock.fs_cgsize) == 0)
continue;
+ if (cgrp.cg_magic != CG_MAGIC) {
+ pfatal("CG %d: BAD MAGIC NUMBER\n", c);
+ bzero((char *)&cgrp, (int)sblock.fs_cgsize);
+ }
n = 0;
- for (i = 0; i < sblock.fs_ipg; i++, inum++) {
- dp = ginode();
+ for (i = 0; i < sblock.fs_ipg; i++, inumber++) {
+ dp = ginode(inumber);
if (dp == NULL)
continue;
n++;
if (!isset(cgrp.cg_iused, i)) {
if (debug)
printf("%d bad, not used\n",
- inum);
+ inumber);
inosumbad++;
}
n--;
- lastino = inum;
- if (ftypeok(dp) == 0) {
- pfatal("UNKNOWN FILE TYPE I=%u", inum);
- if (reply("CLEAR") == 1) {
- zapino(dp);
- inodirty();
- inosumbad++;
- }
- continue;
+ lastino = inumber;
+ if (!preen && BADBLK &&
+ reply("HOLD BAD BLOCK") == 1) {
+ dp->di_size = sblock.fs_fsize;
+ dp->di_mode = IFREG|0600;
+ inodirty();
+ } else if (ftypeok(dp) == 0)
+ goto unknown;
+ if (dp->di_size < 0) {
+ if (debug)
+ printf("bad size %d:",
+ dp->di_size);
+ goto unknown;
}
+ ndb = howmany(dp->di_size, sblock.fs_bsize);
+ if (SPECIAL)
+ ndb++;
+ for (j = ndb; j < NDADDR; j++)
+ if (dp->di_db[j] != 0) {
+ if (debug)
+ printf("bad direct addr: %d\n",
+ dp->di_db[j]);
+ goto unknown;
+ }
+ for (j = 0, ndb -= NDADDR; ndb > 0; j++)
+ ndb /= NINDIR(&sblock);
+ for (; j < NIADDR; j++)
+ if (dp->di_ib[j] != 0) {
+ if (debug)
+ printf("bad indirect addr: %d\n",
+ dp->di_ib[j]);
+ goto unknown;
+ }
n_files++;
- if (setlncnt(dp->di_nlink) <= 0) {
+ lncntp[inumber] = dp->di_nlink;
+ if (dp->di_nlink <= 0) {
if (badlnp < &badlncnt[MAXLNCNT])
- *badlnp++ = inum;
+ *badlnp++ = inumber;
else {
pfatal("LINK COUNT TABLE OVERFLOW");
if (reply("CONTINUE") == 0)
errexit("");
}
}
- setstate(DIRCT ? DSTATE : FSTATE);
- badblk = dupblk = 0; filsize = 0; maxblk = 0;
- ckinode(dp, ADDR);
+ statemap[inumber] = DIRCT ? DSTATE : FSTATE;
+ badblk = dupblk = 0; maxblk = 0;
+ idesc.id_number = inumber;
+ idesc.id_filesize = 0;
+ (void)ckinode(dp, &idesc);
+ idesc.id_filesize *= btodb(sblock.fs_fsize);
+ if (dp->di_blocks != idesc.id_filesize) {
+ pwarn("INCORRECT BLOCK COUNT I=%u (%ld should be %ld)",
+ inumber, dp->di_blocks,
+ idesc.id_filesize);
+ if (preen)
+ printf(" (CORRECTED)\n");
+ else if (reply("CORRECT") == 0)
+ continue;
+ dp->di_blocks = idesc.id_filesize;
+ inodirty();
+ }
+ continue;
+ unknown:
+ pfatal("UNKNOWN FILE TYPE I=%u", inumber);
+ if (reply("CLEAR") == 1) {
+ zapino(dp);
+ inodirty();
+ inosumbad++;
+ }
} else {
if (isset(cgrp.cg_iused, i)) {
if (debug)
printf("%d bad, marked used\n",
- inum);
+ inumber);
inosumbad++;
n--;
}
- if (dp->di_mode != 0) {
- pfatal("PARTIALLY ALLOCATED INODE I=%u", inum);
+ partial = 0;
+ for (j = 0; j < NDADDR; j++)
+ if (dp->di_db[j] != 0)
+ partial++;
+ for (j = 0; j < NIADDR; j++)
+ if (dp->di_ib[j] != 0)
+ partial++;
+ if (partial || dp->di_mode != 0 ||
+ dp->di_size != 0) {
+ pfatal("PARTIALLY ALLOCATED INODE I=%u",
+ inumber);
if (reply("CLEAR") == 1) {
zapino(dp);
inodirty();
c, cgrp.cg_cs.cs_nifree, n);
inosumbad++;
}
+ if (cgrp.cg_cs.cs_nbfree != sblock.fs_cs(&sblock, c).cs_nbfree
+ || cgrp.cg_cs.cs_nffree != sblock.fs_cs(&sblock, c).cs_nffree
+ || cgrp.cg_cs.cs_nifree != sblock.fs_cs(&sblock, c).cs_nifree
+ || cgrp.cg_cs.cs_ndir != sblock.fs_cs(&sblock, c).cs_ndir)
+ sbsumbad++;
}
-/* 1b */
- if (enddup != &duplist[0]) {
- if (preen)
- pfatal("INTERNAL ERROR: dups with -p");
- printf("** Phase 1b - Rescan For More DUPS\n");
- pfunc = pass1b;
- inum = 0;
- for (c = 0; c < sblock.fs_ncg; c++) {
- for (i = 0; i < sblock.fs_ipg; i++, inum++) {
- dp = ginode();
- if (dp == NULL)
- continue;
- if (getstate() != USTATE &&
- (ckinode(dp, ADDR) & STOP))
- goto out1b;
+}
+
+pass1check(idesc)
+ register struct inodesc *idesc;
+{
+ register daddr_t *dlp;
+ int res = KEEPON;
+ int anyout, nfrags;
+ daddr_t blkno = idesc->id_blkno;
+
+ anyout = outrange(blkno, idesc->id_numfrags);
+ for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
+ if (anyout && outrange(blkno, 1)) {
+ blkerr(idesc->id_number, "BAD", blkno);
+ if (++badblk >= MAXBAD) {
+ pwarn("EXCESSIVE BAD BLKS I=%u",
+ idesc->id_number);
+ if (preen)
+ printf(" (SKIPPING)\n");
+ else if (reply("CONTINUE") == 0)
+ errexit("");
+ return (STOP);
+ }
+ res = SKIP;
+ } else if (getbmap(blkno)) {
+ blkerr(idesc->id_number, "DUP", blkno);
+ if (++dupblk >= MAXDUP) {
+ pwarn("EXCESSIVE DUP BLKS I=%u",
+ idesc->id_number);
+ if (preen)
+ printf(" (SKIPPING)\n");
+ else if (reply("CONTINUE") == 0)
+ errexit("");
+ return (STOP);
}
+ if (enddup >= &duplist[DUPTBLSIZE]) {
+ pfatal("DUP TABLE OVERFLOW.");
+ if (reply("CONTINUE") == 0)
+ errexit("");
+ return (STOP);
+ }
+ for (dlp = duplist; dlp < muldup; dlp++)
+ if (*dlp == blkno) {
+ *enddup++ = blkno;
+ break;
+ }
+ if (dlp >= muldup) {
+ *enddup++ = *muldup;
+ *muldup++ = blkno;
+ }
+ } else {
+ n_blks++;
+ setbmap(blkno);
+ }
+ idesc->id_filesize++;
+ }
+ return (res);
+}
+
+pass1b()
+{
+ register int c, i;
+ register DINODE *dp;
+ struct inodesc idesc;
+ ino_t inumber;
+
+ bzero((char *)&idesc, sizeof(struct inodesc));
+ idesc.id_type = ADDR;
+ idesc.id_func = pass1bcheck;
+ inumber = 0;
+ for (c = 0; c < sblock.fs_ncg; c++) {
+ for (i = 0; i < sblock.fs_ipg; i++, inumber++) {
+ dp = ginode(inumber);
+ if (dp == NULL)
+ continue;
+ idesc.id_number = inumber;
+ if (statemap[inumber] != USTATE &&
+ (ckinode(dp, &idesc) & STOP))
+ goto out1b;
}
}
out1b:
flush(&dfile, &inoblk);
-/* 2 */
- if (preen == 0)
- printf("** Phase 2 - Check Pathnames\n");
- inum = ROOTINO;
- thisname = pathp = pathname;
- pfunc = pass2;
- switch (getstate()) {
+}
+
+pass1bcheck(idesc)
+ register struct inodesc *idesc;
+{
+ register daddr_t *dlp;
+ int nfrags, res = KEEPON;
+ daddr_t blkno = idesc->id_blkno;
+
+ for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
+ if (outrange(blkno, 1))
+ res = SKIP;
+ for (dlp = duplist; dlp < muldup; dlp++)
+ if (*dlp == blkno) {
+ blkerr(idesc->id_number, "DUP", blkno);
+ *dlp = *--muldup;
+ *muldup = blkno;
+ if (muldup == duplist)
+ return (STOP);
+ }
+ }
+ return (res);
+}
+
+pass2()
+{
+ register DINODE *dp;
+ struct inodesc rootdesc;
+
+ bzero((char *)&rootdesc, sizeof(struct inodesc));
+ rootdesc.id_type = ADDR;
+ rootdesc.id_func = pass2check;
+ rootdesc.id_number = ROOTINO;
+ pathp = pathname;
+ switch (statemap[ROOTINO]) {
case USTATE:
errexit("ROOT INODE UNALLOCATED. TERMINATING.\n");
case FSTATE:
pfatal("ROOT INODE NOT DIRECTORY");
- if (reply("FIX") == 0 || (dp = ginode()) == NULL)
+ if (reply("FIX") == 0 || (dp = ginode(ROOTINO)) == NULL)
errexit("");
dp->di_mode &= ~IFMT;
dp->di_mode |= IFDIR;
inodirty();
inosumbad++;
- setstate(DSTATE);
+ statemap[ROOTINO] = DSTATE;
/* fall into ... */
case DSTATE:
- descend();
+ descend(&rootdesc, ROOTINO);
break;
case CLEAR:
printf("\n");
if (reply("CONTINUE") == 0)
errexit("");
- setstate(DSTATE);
- descend();
+ statemap[ROOTINO] = DSTATE;
+ descend(&rootdesc, ROOTINO);
}
-/* 3 */
- if (preen == 0)
- printf("** Phase 3 - Check Connectivity\n");
- for (inum = ROOTINO; inum <= lastino; inum++) {
- if (getstate() == DSTATE) {
- pfunc = findino;
- srchname = "..";
- savino = inum;
- do {
- orphan = inum;
- if ((dp = ginode()) == NULL)
+}
+
+pass2check(idesc)
+ struct inodesc *idesc;
+{
+ register DIRECT *dirp = idesc->id_dirp;
+ char *curpathloc;
+ int n, entrysize, ret = 0;
+ DINODE *dp;
+ DIRECT proto;
+
+ /*
+ * check for "."
+ */
+ if (idesc->id_entryno != 0)
+ goto chk1;
+ if (dirp->d_ino != 0 && dirp->d_namlen == 1 && dirp->d_name[0] == '.') {
+ if (dirp->d_ino != idesc->id_number) {
+ direrr(idesc->id_number, "BAD INODE NUMBER FOR '.'");
+ dirp->d_ino = idesc->id_number;
+ if (reply("FIX") == 1)
+ ret |= ALTERED;
+ }
+ goto chk1;
+ }
+ direrr(idesc->id_number, "MISSING '.'");
+ proto.d_ino = idesc->id_number;
+ proto.d_namlen = 1;
+ (void)strcpy(proto.d_name, ".");
+ entrysize = DIRSIZ(&proto);
+ if (dirp->d_ino != 0) {
+ pfatal("CANNOT FIX, FIRST ENTRY IN DIRECTORY CONTAINS %s\n",
+ dirp->d_name);
+ } else if (dirp->d_reclen < entrysize) {
+ pfatal("CANNOT FIX, INSUFFICIENT SPACE TO ADD '.'\n");
+ } else if (dirp->d_reclen < 2 * entrysize) {
+ proto.d_reclen = dirp->d_reclen;
+ bcopy((char *)&proto, (char *)dirp, entrysize);
+ if (reply("FIX") == 1)
+ ret |= ALTERED;
+ } else {
+ n = dirp->d_reclen - entrysize;
+ proto.d_reclen = entrysize;
+ bcopy((char *)&proto, (char *)dirp, entrysize);
+ idesc->id_entryno++;
+ lncntp[dirp->d_ino]--;
+ dirp = (DIRECT *)((char *)(dirp) + entrysize);
+ bzero((char *)dirp, n);
+ dirp->d_reclen = n;
+ if (reply("FIX") == 1)
+ ret |= ALTERED;
+ }
+chk1:
+ if (idesc->id_entryno > 1)
+ goto chk2;
+ proto.d_ino = idesc->id_parent;
+ proto.d_namlen = 2;
+ (void)strcpy(proto.d_name, "..");
+ entrysize = DIRSIZ(&proto);
+ if (idesc->id_entryno == 0) {
+ n = DIRSIZ(dirp);
+ if (dirp->d_reclen < n + entrysize)
+ goto chk2;
+ proto.d_reclen = dirp->d_reclen - n;
+ dirp->d_reclen = n;
+ idesc->id_entryno++;
+ lncntp[dirp->d_ino]--;
+ dirp = (DIRECT *)((char *)(dirp) + n);
+ bzero((char *)dirp, n);
+ dirp->d_reclen = n;
+ }
+ if (dirp->d_ino != 0 && dirp->d_namlen == 2 &&
+ strcmp(dirp->d_name, "..") == 0) {
+ if (dirp->d_ino != idesc->id_parent) {
+ direrr(idesc->id_number, "BAD INODE NUMBER FOR '..'");
+ dirp->d_ino = idesc->id_parent;
+ if (reply("FIX") == 1)
+ ret |= ALTERED;
+ }
+ goto chk2;
+ }
+ direrr(idesc->id_number, "MISSING '..'");
+ if (dirp->d_ino != 0) {
+ pfatal("CANNOT FIX, SECOND ENTRY IN DIRECTORY CONTAINS %s\n",
+ dirp->d_name);
+ } else if (dirp->d_reclen < entrysize) {
+ pfatal("CANNOT FIX, INSUFFICIENT SPACE TO ADD '..'\n");
+ } else {
+ proto.d_reclen = dirp->d_reclen;
+ bcopy((char *)&proto, (char *)dirp, entrysize);
+ if (reply("FIX") == 1)
+ ret |= ALTERED;
+ }
+chk2:
+ if (dirp->d_ino == 0)
+ return (ret|KEEPON);
+ if (idesc->id_entryno >= 2 &&
+ dirp->d_namlen <= 2 &&
+ dirp->d_name[0] == '.') {
+ if (dirp->d_namlen == 1) {
+ direrr(idesc->id_number, "EXTRA '.' ENTRY");
+ dirp->d_ino = 0;
+ if (reply("FIX") == 1)
+ ret |= ALTERED;
+ return (KEEPON | ret);
+ }
+ if (dirp->d_name[1] == '.') {
+ direrr(idesc->id_number, "EXTRA '..' ENTRY");
+ dirp->d_ino = 0;
+ if (reply("FIX") == 1)
+ ret |= ALTERED;
+ return (KEEPON | ret);
+ }
+ }
+ curpathloc = pathp;
+ *pathp++ = '/';
+ if (pathp + dirp->d_namlen >= endpathname) {
+ *pathp = '\0';
+ errexit("NAME TOO LONG %s%s\n", pathname, dirp->d_name);
+ }
+ bcopy(dirp->d_name, pathp, dirp->d_namlen + 1);
+ pathp += dirp->d_namlen;
+ idesc->id_entryno++;
+ n = 0;
+ if (dirp->d_ino > imax || dirp->d_ino <= 0) {
+ direrr(dirp->d_ino, "I OUT OF RANGE");
+ n = reply("REMOVE");
+ } else {
+again:
+ switch (statemap[dirp->d_ino]) {
+ case USTATE:
+ direrr(dirp->d_ino, "UNALLOCATED");
+ n = reply("REMOVE");
+ break;
+
+ case CLEAR:
+ direrr(dirp->d_ino, "DUP/BAD");
+ if ((n = reply("REMOVE")) == 1)
+ break;
+ if ((dp = ginode(dirp->d_ino)) == NULL)
+ break;
+ statemap[dirp->d_ino] = DIRCT ? DSTATE : FSTATE;
+ goto again;
+
+ case FSTATE:
+ lncntp[dirp->d_ino]--;
+ break;
+
+ case DSTATE:
+ descend(idesc, dirp->d_ino);
+ if (statemap[dirp->d_ino] != CLEAR) {
+ lncntp[dirp->d_ino]--;
+ } else {
+ dirp->d_ino = 0;
+ ret |= ALTERED;
+ }
+ break;
+ }
+ }
+ pathp = curpathloc;
+ *pathp = '\0';
+ if (n == 0)
+ return (ret|KEEPON);
+ dirp->d_ino = 0;
+ return (ret|KEEPON|ALTERED);
+}
+
+pass3()
+{
+ register DINODE *dp;
+ struct inodesc idesc;
+ ino_t inumber, orphan;
+ int loopcnt;
+
+ bzero((char *)&idesc, sizeof(struct inodesc));
+ idesc.id_type = DATA;
+ for (inumber = ROOTINO; inumber <= lastino; inumber++) {
+ if (statemap[inumber] == DSTATE) {
+ pathp = pathname;
+ *pathp++ = '?';
+ *pathp = '\0';
+ idesc.id_func = findino;
+ srchname = "..";
+ idesc.id_parent = inumber;
+ loopcnt = 0;
+ do {
+ orphan = idesc.id_parent;
+ if ((dp = ginode(orphan)) == NULL)
break;
- filsize = dp->di_size;
- parentdir = 0;
- ckinode(dp, DATA);
- if ((inum = parentdir) == 0)
+ idesc.id_parent = 0;
+ idesc.id_filesize = dp->di_size;
+ idesc.id_number = orphan;
+ (void)ckinode(dp, &idesc);
+ if (idesc.id_parent == 0)
break;
- } while (getstate() == DSTATE);
- inum = orphan;
- if (linkup() == 1) {
- thisname = pathp = pathname;
- *pathp++ = '?';
- pfunc = pass2;
- descend();
+ if (loopcnt >= sblock.fs_cstotal.cs_ndir)
+ break;
+ loopcnt++;
+ } while (statemap[idesc.id_parent] == DSTATE);
+ if (linkup(orphan, idesc.id_parent) == 1) {
+ idesc.id_func = pass2check;
+ idesc.id_number = lfdir;
+ descend(&idesc, orphan);
}
- inum = savino;
}
}
-/* 4 */
- if (preen == 0)
- printf("** Phase 4 - Check Reference Counts\n");
- pfunc = pass4;
- for (inum = ROOTINO; inum <= lastino; inum++) {
- switch (getstate()) {
+}
+
+pass4()
+{
+ register ino_t inumber, *blp;
+ int n;
+ struct inodesc idesc;
+
+ bzero((char *)&idesc, sizeof(struct inodesc));
+ idesc.id_type = ADDR;
+ idesc.id_func = pass4check;
+ for (inumber = ROOTINO; inumber <= lastino; inumber++) {
+ idesc.id_number = inumber;
+ switch (statemap[inumber]) {
case FSTATE:
- if (n = getlncnt())
- adjust((short)n);
+ n = lncntp[inumber];
+ if (n)
+ adjust(&idesc, (short)n);
else {
for (blp = badlncnt;blp < badlnp; blp++)
- if (*blp == inum) {
- clri("UNREF", 1);
+ if (*blp == inumber) {
+ clri(&idesc, "UNREF", 1);
break;
}
}
break;
case DSTATE:
- clri("UNREF", 1);
+ clri(&idesc, "UNREF", 1);
break;
case CLEAR:
- clri("BAD/DUP", 1);
+ clri(&idesc, "BAD/DUP", 1);
break;
}
}
}
}
flush(&dfile, &fileblk);
+}
-/* 5 */
- if (preen == 0)
- printf("** Phase 5 - Check Cyl groups\n");
- copy(blockmap, freemap, (unsigned)bmapsz);
+pass4check(idesc)
+ register struct inodesc *idesc;
+{
+ register daddr_t *dlp;
+ int nfrags, res = KEEPON;
+ daddr_t blkno = idesc->id_blkno;
+
+ for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
+ if (outrange(blkno, 1))
+ res = SKIP;
+ else if (getbmap(blkno)) {
+ for (dlp = duplist; dlp < enddup; dlp++)
+ if (*dlp == blkno) {
+ *dlp = *--enddup;
+ return (KEEPON);
+ }
+ clrbmap(blkno);
+ n_blks--;
+ }
+ }
+ return (res);
+}
+
+pass5()
+{
+ register int c, n, i, b, d;
+ short bo[MAXCPG][NRPOS];
+ long botot[MAXCPG];
+ long frsum[MAXFRAG];
+ int blk;
+ daddr_t cbase;
+ int blockbits = (1<<sblock.fs_frag)-1;
+
+ bcopy(blockmap, freemap, (unsigned)bmapsz);
dupblk = 0;
n_index = sblock.fs_ncg * (cgdmin(&sblock, 0) - cgtod(&sblock, 0));
for (c = 0; c < sblock.fs_ncg; c++) {
- daddr_t cbase = cgbase(&sblock, c);
- short bo[MAXCPG][NRPOS];
- long botot[MAXCPG];
- long frsum[MAXFRAG];
- int blk;
-
- for (n = 0; n < sblock.fs_cpg; n++) {
- botot[n] = 0;
- for (i = 0; i < NRPOS; i++)
- bo[n][i] = 0;
- }
- for (i = 0; i < sblock.fs_frag; i++) {
- frsum[i] = 0;
- }
+ cbase = cgbase(&sblock, c);
+ bzero((char *)botot, sizeof (botot));
+ bzero((char *)bo, sizeof (bo));
+ bzero((char *)frsum, sizeof (frsum));
/*
- * need to account for the spare boot and super blocks
+ * need to account for the super blocks
* which appear (inaccurately) bad
*/
- n_bad += cgtod(&sblock, c) - cbase;
+ n_bad += cgtod(&sblock, c) - cgsblock(&sblock, c);
if (getblk(&cgblk, cgtod(&sblock, c), sblock.fs_cgsize) == 0)
continue;
+ if (cgrp.cg_magic != CG_MAGIC) {
+ pfatal("CG %d: BAD MAGIC NUMBER\n", c);
+ bzero((char *)&cgrp, (int)sblock.fs_cgsize);
+ }
for (b = 0; b < sblock.fs_fpg; b += sblock.fs_frag) {
- if (isblock(&sblock, cgrp.cg_free, b/sblock.fs_frag)) {
- if (pass5(cbase+b, sblock.fs_frag) == STOP)
+ blk = blkmap(&sblock, cgrp.cg_free, b);
+ if (blk == 0)
+ continue;
+ if (blk == blockbits) {
+ if (pass5check(cbase+b, sblock.fs_frag) == STOP)
goto out5;
/* this is clumsy ... */
n_ffree -= sblock.fs_frag;
botot[cbtocylno(&sblock, b)]++;
bo[cbtocylno(&sblock, b)]
[cbtorpos(&sblock, b)]++;
- } else {
- for (d = 0; d < sblock.fs_frag; d++)
- if (isset(cgrp.cg_free, b+d))
- if (pass5(cbase+b+d,1) == STOP)
- goto out5;
- blk = ((cgrp.cg_free[b / NBBY] >> (b % NBBY)) &
- (0xff >> (NBBY - sblock.fs_frag)));
- if (blk != 0)
- fragacct(&sblock, blk, frsum, 1);
+ continue;
}
+ for (d = 0; d < sblock.fs_frag; d++)
+ if ((blk & (1<<d)) &&
+ pass5check(cbase + b + d, (long)1) == STOP)
+ goto out5;
+ fragacct(&sblock, blk, frsum, 1);
}
- for (i = 0; i < sblock.fs_frag; i++) {
- if (cgrp.cg_frsum[i] != frsum[i]) {
- if (debug)
- printf("cg[%d].cg_frsum[%d] have %d calc %d\n",
- c, i, cgrp.cg_frsum[i], frsum[i]);
- frsumbad++;
- }
+ if (bcmp((char *)cgrp.cg_frsum, (char *)frsum, sizeof(frsum))) {
+ if (debug)
+ for (i = 0; i < sblock.fs_frag; i++)
+ if (cgrp.cg_frsum[i] != frsum[i])
+ printf("cg[%d].cg_frsum[%d] have %d calc %d\n",
+ c, i, cgrp.cg_frsum[i], frsum[i]);
+ frsumbad++;
}
- for (n = 0; n < sblock.fs_cpg; n++) {
- if (botot[n] != cgrp.cg_btot[n]) {
- if (debug)
- printf("cg[%d].cg_btot[%d] have %d calc %d\n",
- c, n, cgrp.cg_btot[n], botot[n]);
- offsumbad++;
- }
+ if (bcmp((char *)cgrp.cg_btot, (char *)botot, sizeof (botot))) {
+ if (debug)
+ for (n = 0; n < sblock.fs_cpg; n++)
+ if (botot[n] != cgrp.cg_btot[n])
+ printf("cg[%d].cg_btot[%d] have %d calc %d\n",
+ c, n, cgrp.cg_btot[n], botot[n]);
+ offsumbad++;
+ }
+ if (bcmp((char *)cgrp.cg_b, (char *)bo, sizeof (bo))) {
+ if (debug)
for (i = 0; i < NRPOS; i++)
- if (bo[n][i] != cgrp.cg_b[n][i]) {
- if (debug)
- printf("cg[%d].cg_b[%d][%d] have %d calc %d\n",
- c, n, i, cgrp.cg_b[n][i],
- bo[n][i]);
- offsumbad++;
- }
+ if (bo[n][i] != cgrp.cg_b[n][i])
+ printf("cg[%d].cg_b[%d][%d] have %d calc %d\n",
+ c, n, i, cgrp.cg_b[n][i], bo[n][i]);
+ offsumbad++;
}
}
out5:
if ((b = n_blks+n_ffree+sblock.fs_frag*n_bfree+n_index+n_bad) != fmax) {
pwarn("%ld BLK(S) MISSING\n", fmax - b);
fixcg = 1;
- } else if (inosumbad + offsumbad + frsumbad) {
- pwarn("SUMMARY INFORMATION %s%s%sBAD\n",
+ } else if (inosumbad + offsumbad + frsumbad + sbsumbad) {
+ pwarn("SUMMARY INFORMATION %s%s%s%sBAD\n",
inosumbad ? "(INODE FREE) " : "",
offsumbad ? "(BLOCK OFFSETS) " : "",
- frsumbad ? "(FRAG SUMMARIES) " : "");
+ frsumbad ? "(FRAG SUMMARIES) " : "",
+ sbsumbad ? "(SUPER BLOCK SUMMARIES) " : "");
fixcg = 1;
} else if (n_ffree != sblock.fs_cstotal.cs_nffree ||
n_bfree != sblock.fs_cstotal.cs_nbfree) {
else if (reply("SALVAGE") == 0)
fixcg = 0;
}
-
- if (fixcg) {
- if (preen == 0)
- printf("** Phase 6 - Salvage Cylinder Groups\n");
- makecg();
- n_ffree = sblock.fs_cstotal.cs_nffree;
- n_bfree = sblock.fs_cstotal.cs_nbfree;
- }
-
- pwarn("%d files, %d used, %d free (%d frags, %d blocks)\n",
- n_files, n_blks - howmany(sblock.fs_cssize, sblock.fs_bsize) * sblock.fs_frag,
- n_ffree + sblock.fs_frag * n_bfree, n_ffree, n_bfree);
- if (dfile.mod) {
- time(&sblock.fs_time);
- sbdirty();
- }
- ckfini();
- sync();
- if (dfile.mod && hotroot) {
- printf("\n***** BOOT UNIX (NO SYNC!) *****\n");
- exit(4);
- }
- if (dfile.mod && preen == 0)
- printf("\n***** FILE SYSTEM WAS MODIFIED *****\n");
- free(blockmap);
- free(freemap);
- free(statemap);
- free(lncntp);
-}
-
-/* VARARGS1 */
-error(s1, s2, s3, s4)
- char *s1;
-{
-
- printf(s1, s2, s3, s4);
-}
-
-/* VARARGS1 */
-errexit(s1, s2, s3, s4)
- char *s1;
-{
- error(s1, s2, s3, s4);
- exit(8);
}
-/*
- * An inconsistency occured which shouldn't during normal operations.
- * Die if preening, otw just printf.
- */
-/* VARARGS1 */
-pfatal(s, a1, a2, a3)
- char *s;
+pass5check(blk, size)
+ daddr_t blk;
+ long size;
{
- if (preen) {
- printf("%s: ", devname);
- printf(s, a1, a2, a3);
- printf("\n");
- preendie();
+ if (outrange(blk, (int)size)) {
+ fixcg = 1;
+ if (preen)
+ pfatal("BAD BLOCKS IN BIT MAPS.");
+ if (++badblk >= MAXBAD) {
+ printf("EXCESSIVE BAD BLKS IN BIT MAPS.");
+ if (reply("CONTINUE") == 0)
+ errexit("");
+ return (STOP);
+ }
}
- printf(s, a1, a2, a3);
-}
-
-preendie()
-{
-
- printf("%s: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.\n", devname);
- exit(8);
-}
-
-/*
- * Pwarn is like printf when not preening,
- * or a warning (preceded by filename) when preening.
- */
-/* VARARGS1 */
-pwarn(s, a1, a2, a3, a4, a5)
- char *s;
-{
-
- if (preen)
- printf("%s: ", devname);
- printf(s, a1, a2, a3, a4, a5);
+ for (; size > 0; blk++, size--)
+ if (getfmap(blk)) {
+ fixcg = 1;
+ ++dupblk;
+ } else {
+ n_ffree++;
+ setfmap(blk);
+ }
+ return (KEEPON);
}
-ckinode(dp, flg)
+ckinode(dp, idesc)
DINODE *dp;
- register flg;
+ register struct inodesc *idesc;
{
register daddr_t *ap;
- register ret;
- int (*func)(), n, ndb, size, offset;
+ int ret, n, ndb, offset;
+ DINODE dino;
if (SPECIAL)
return (KEEPON);
- func = (flg == ADDR) ? pfunc : dirscan;
- ndb = howmany(dp->di_size, sblock.fs_bsize);
- for (ap = &dp->di_db[0]; ap < &dp->di_db[NDADDR]; ap++) {
- if (--ndb == 0 && (offset = blkoff(&sblock, dp->di_size)) != 0)
- size = numfrags(&sblock, fragroundup(&sblock, offset));
+ dino = *dp;
+ idesc->id_fix = DONTKNOW;
+ idesc->id_entryno = 0;
+ ndb = howmany(dino.di_size, sblock.fs_bsize);
+ for (ap = &dino.di_db[0]; ap < &dino.di_db[NDADDR]; ap++) {
+ if (--ndb == 0 && (offset = blkoff(&sblock, dino.di_size)) != 0)
+ idesc->id_numfrags =
+ numfrags(&sblock, fragroundup(&sblock, offset));
+ else
+ idesc->id_numfrags = sblock.fs_frag;
+ if (*ap == 0)
+ continue;
+ idesc->id_blkno = *ap;
+ if (idesc->id_type == ADDR)
+ ret = (*idesc->id_func)(idesc);
else
- size = sblock.fs_frag;
- if (*ap && (ret = (*func)(*ap, size)) & STOP)
+ ret = dirscan(idesc);
+ if (ret & STOP)
return (ret);
}
- for (ap = &dp->di_ib[0], n = 1; n <= 2; ap++, n++) {
- if (*ap && (ret = iblock(*ap, n, flg, dp->di_size - sblock.fs_bsize * NDADDR)) & STOP)
- return (ret);
+ idesc->id_numfrags = sblock.fs_frag;
+ for (ap = &dino.di_ib[0], n = 1; n <= 2; ap++, n++) {
+ if (*ap) {
+ idesc->id_blkno = *ap;
+ ret = iblock(idesc, n,
+ dino.di_size - sblock.fs_bsize * NDADDR);
+ if (ret & STOP)
+ return (ret);
+ }
}
return (KEEPON);
}
-iblock(blk, ilevel, flg, isize)
- daddr_t blk;
+iblock(idesc, ilevel, isize)
+ struct inodesc *idesc;
register ilevel;
- int isize;
+ long isize;
{
register daddr_t *ap;
register daddr_t *aplim;
- register int i, n;
- int (*func)(), nif;
+ int i, n, (*func)(), nif;
BUFAREA ib;
- if (flg == ADDR) {
- func = pfunc;
- if (((n = (*func)(blk, sblock.fs_frag)) & KEEPON) == 0)
+ if (idesc->id_type == ADDR) {
+ func = idesc->id_func;
+ if (((n = (*func)(idesc)) & KEEPON) == 0)
return (n);
} else
func = dirscan;
- if (outrange(blk)) /* protect thyself */
+ if (outrange(idesc->id_blkno, idesc->id_numfrags)) /* protect thyself */
return (SKIP);
initbarea(&ib);
- if (getblk(&ib, blk, sblock.fs_bsize) == NULL)
+ if (getblk(&ib, idesc->id_blkno, sblock.fs_bsize) == NULL)
return (SKIP);
ilevel--;
if (ilevel == 0) {
}
if (nif > NINDIR(&sblock))
nif = NINDIR(&sblock);
- aplim = & ib.b_un.b_indir[nif];
+ aplim = &ib.b_un.b_indir[nif];
for (ap = ib.b_un.b_indir, i = 1; ap < aplim; ap++, i++)
if (*ap) {
+ idesc->id_blkno = *ap;
if (ilevel > 0)
- n = iblock(*ap, ilevel, flg, isize - i * NINDIR(&sblock) * sblock.fs_bsize);
+ n = iblock(idesc, ilevel,
+ isize - i*NINDIR(&sblock)*sblock.fs_bsize);
else
- n = (*func)(*ap, sblock.fs_frag);
+ n = (*func)(idesc);
if (n & STOP)
return (n);
}
return (KEEPON);
}
-pass1(blk, size)
- daddr_t blk;
- int size;
-{
- register daddr_t *dlp;
- int res = KEEPON;
-
- for (; size > 0; blk++, size--) {
- if (outrange(blk)) {
- blkerr("BAD", blk);
- if (++badblk >= MAXBAD) {
- printf("EXCESSIVE BAD BLKS I=%u", inum);
- if (reply("CONTINUE") == 0)
- errexit("");
- return (STOP);
- }
- res = SKIP;
- } else if (getbmap(blk)) {
- blkerr("DUP", blk);
- if (++dupblk >= MAXDUP) {
- printf("EXCESSIVE DUP BLKS I=%u", inum);
- if (reply("CONTINUE") == 0)
- errexit("");
- return (STOP);
- }
- if (enddup >= &duplist[DUPTBLSIZE]) {
- printf("DUP TABLE OVERFLOW.");
- if (reply("CONTINUE") == 0)
- errexit("");
- return (STOP);
- }
- for (dlp = duplist; dlp < muldup; dlp++)
- if (*dlp == blk) {
- *enddup++ = blk;
- break;
- }
- if (dlp >= muldup) {
- *enddup++ = *muldup;
- *muldup++ = blk;
- }
- } else {
- n_blks++;
- setbmap(blk);
- }
- filsize++;
- }
- return (res);
-}
-
-pass1b(blk, size)
- daddr_t blk;
- int size;
-{
- register daddr_t *dlp;
- int res = KEEPON;
-
- for (; size > 0; blk++, size--) {
- if (outrange(blk))
- res = SKIP;
- for (dlp = duplist; dlp < muldup; dlp++)
- if (*dlp == blk) {
- blkerr("DUP", blk);
- *dlp = *--muldup;
- *muldup = blk;
- if (muldup == duplist)
- return (STOP);
- }
- }
- return (res);
-}
-
-pass2(dirp)
- register DIRECT *dirp;
-{
- register char *p;
- register n;
- DINODE *dp;
-
- if ((inum = dirp->d_ino) == 0)
- return (KEEPON);
- thisname = pathp;
- for (p = dirp->d_name; p < &dirp->d_name[MAXNAMLEN]; )
- if ((*pathp++ = *p++) == 0) {
- --pathp;
- break;
- }
- *pathp = 0;
- n = 0;
- if (inum > imax || inum <= 0)
- n = direrr("I OUT OF RANGE");
- else {
-again:
- switch (getstate()) {
- case USTATE:
- n = direrr("UNALLOCATED");
- break;
-
- case CLEAR:
- if ((n = direrr("DUP/BAD")) == 1)
- break;
- if ((dp = ginode()) == NULL)
- break;
- setstate(DIRCT ? DSTATE : FSTATE);
- goto again;
-
- case FSTATE:
- declncnt();
- break;
-
- case DSTATE:
- declncnt();
- descend();
- break;
- }
- }
- pathp = thisname;
- if (n == 0)
- return (KEEPON);
- dirp->d_ino = 0;
- return (KEEPON|ALTERD);
-}
-
-pass4(blk, size)
- daddr_t blk;
-{
- register daddr_t *dlp;
- int res = KEEPON;
-
- for (; size > 0; blk++, size--) {
- if (outrange(blk))
- res = SKIP;
- else if (getbmap(blk)) {
- for (dlp = duplist; dlp < enddup; dlp++)
- if (*dlp == blk) {
- *dlp = *--enddup;
- return (KEEPON);
- }
- clrbmap(blk);
- n_blks--;
- }
- }
- return (res);
-}
-
-pass5(blk, size)
- daddr_t blk;
- int size;
-{
- int res = KEEPON;
-
- for (; size > 0; blk++, size--) {
- if (outrange(blk)) {
- fixcg = 1;
- if (preen)
- pfatal("BAD BLOCKS IN BIT MAPS.");
- if (++badblk >= MAXBAD) {
- printf("EXCESSIVE BAD BLKS IN BIT MAPS.");
- if (reply("CONTINUE") == 0)
- errexit("");
- return (STOP);
- }
- } else if (getfmap(blk)) {
- fixcg = 1;
- if (++dupblk >= DUPTBLSIZE) {
- printf("EXCESSIVE DUP BLKS IN BIT MAPS.");
- if (reply("CONTINUE") == 0)
- errexit("");
- return (STOP);
- }
- } else {
- n_ffree++;
- setfmap(blk);
- }
- }
- return (res);
-}
-
-outrange(blk)
+outrange(blk, cnt)
daddr_t blk;
+ int cnt;
{
register int c;
- c = dtog(&sblock, blk);
- if (blk >= fmax || blk < cgdmin(&sblock, c)) {
+ if ((unsigned)(blk+cnt) > fmax)
return (1);
+ c = dtog(&sblock, blk);
+ if (blk < cgdmin(&sblock, c)) {
+ if ((blk+cnt) > cgsblock(&sblock, c)) {
+ if (debug) {
+ printf("blk %d < cgdmin %d;",
+ blk, cgdmin(&sblock, c));
+ printf(" blk+cnt %d > cgsbase %d\n",
+ blk+cnt, cgsblock(&sblock, c));
+ }
+ return (1);
+ }
+ } else {
+ if ((blk+cnt) > cgbase(&sblock, c+1)) {
+ if (debug) {
+ printf("blk %d >= cgdmin %d;",
+ blk, cgdmin(&sblock, c));
+ printf(" blk+cnt %d > sblock.fs_fpg %d\n",
+ blk+cnt, sblock.fs_fpg);
+ }
+ return (1);
+ }
}
return (0);
}
-blkerr(s, blk)
- daddr_t blk;
+blkerr(ino, s, blk)
+ ino_t ino;
char *s;
+ daddr_t blk;
{
- pfatal("%ld %s I=%u", blk, s, inum);
+
+ pfatal("%ld %s I=%u", blk, s, ino);
printf("\n");
- setstate(CLEAR); /* mark for possible clearing */
+ statemap[ino] = CLEAR;
}
-descend()
+descend(parentino, inumber)
+ struct inodesc *parentino;
+ ino_t inumber;
{
register DINODE *dp;
- register char *savname;
- off_t savsize;
+ struct inodesc curino;
- setstate(FSTATE);
- if ((dp = ginode()) == NULL)
+ bzero((char *)&curino, sizeof(struct inodesc));
+ statemap[inumber] = FSTATE;
+ if ((dp = ginode(inumber)) == NULL)
return;
- savname = thisname;
- *pathp++ = '/';
- savsize = filsize;
- filsize = dp->di_size;
- ckinode(dp, DATA);
- thisname = savname;
- *--pathp = 0;
- filsize = savsize;
+ if (dp->di_size == 0) {
+ direrr(inumber, "ZERO LENGTH DIRECTORY");
+ if (reply("REMOVE") == 1)
+ statemap[inumber] = CLEAR;
+ return;
+ }
+ if (dp->di_size < MINDIRSIZE) {
+ direrr(inumber, "DIRECTORY TOO SHORT");
+ dp->di_size = MINDIRSIZE;
+ if (reply("FIX") == 1)
+ inodirty();
+ }
+ curino.id_type = DATA;
+ curino.id_func = parentino->id_func;
+ curino.id_parent = parentino->id_number;
+ curino.id_number = inumber;
+ curino.id_filesize = dp->di_size;
+ (void)ckinode(dp, &curino);
}
-struct dirstuff {
- int loc;
- int blkno;
- int blksiz;
-};
-
-dirscan(blk, nf)
- daddr_t blk;
- int nf;
+dirscan(idesc)
+ register struct inodesc *idesc;
{
register DIRECT *dp;
- struct dirstuff dirp;
- int blksiz, dsize, n;
+ int dsize, n;
+ long blksiz;
char dbuf[DIRBLKSIZ];
- if (outrange(blk)) {
- filsize -= sblock.fs_bsize;
+ if (idesc->id_type != DATA)
+ errexit("wrong type to dirscan %d\n", idesc->id_type);
+ blksiz = idesc->id_numfrags * sblock.fs_fsize;
+ if (outrange(idesc->id_blkno, idesc->id_numfrags)) {
+ idesc->id_filesize -= blksiz;
return (SKIP);
}
- blksiz = nf * sblock.fs_fsize;
- dirp.loc = 0;
- dirp.blkno = blk;
- dirp.blksiz = blksiz;
- for (dp = readdir(&dirp); dp != NULL; dp = readdir(&dirp)) {
+ idesc->id_loc = 0;
+ for (dp = fsck_readdir(idesc); dp != NULL; dp = fsck_readdir(idesc)) {
dsize = dp->d_reclen;
- copy(dp, dbuf, dsize);
- if ((n = (*pfunc)(dbuf)) & ALTERD) {
- if (getblk(&fileblk, blk, blksiz) != NULL) {
- copy(dbuf, dp, dsize);
+ bcopy((char *)dp, dbuf, dsize);
+ idesc->id_dirp = (DIRECT *)dbuf;
+ if ((n = (*idesc->id_func)(idesc)) & ALTERED) {
+ if (getblk(&fileblk, idesc->id_blkno, blksiz) != NULL) {
+ bcopy(dbuf, (char *)dp, dsize);
dirty(&fileblk);
sbdirty();
} else
- n &= ~ALTERD;
+ n &= ~ALTERED;
}
if (n & STOP)
return (n);
}
- return (filsize > 0 ? KEEPON : STOP);
+ return (idesc->id_filesize > 0 ? KEEPON : STOP);
}
/*
* get next entry in a directory.
*/
DIRECT *
-readdir(dirp)
- register struct dirstuff *dirp;
+fsck_readdir(idesc)
+ register struct inodesc *idesc;
{
register DIRECT *dp, *ndp;
+ long size, blksiz;
- if (getblk(&fileblk, dirp->blkno, dirp->blksiz) == NULL) {
- filsize -= dirp->blksiz - dirp->loc;
+ blksiz = idesc->id_numfrags * sblock.fs_fsize;
+ if (getblk(&fileblk, idesc->id_blkno, blksiz) == NULL) {
+ idesc->id_filesize -= blksiz - idesc->id_loc;
return NULL;
}
- for (;;) {
- if (filsize <= 0 || dirp->loc >= dirp->blksiz)
- return NULL;
- dp = (DIRECT *)(dirblk.b_buf + dirp->loc);
- dirp->loc += dp->d_reclen;
- filsize -= dp->d_reclen;
- ndp = (DIRECT *)(dirblk.b_buf + dirp->loc);
- if (dirp->loc < dirp->blksiz &&
- (ndp->d_ino > imax || ndp->d_namlen > MAXNAMLEN ||
- ndp->d_reclen <= 0 ||
- ndp->d_reclen > DIRBLKSIZ - (dirp->loc % DIRBLKSIZ))) {
- pwarn("DIRECTORY CORRUPTED");
- if (preen)
- printf(" (SALVAGED)\n");
- else if (reply("SALVAGE") == 0) {
- dirp->loc +=
- DIRBLKSIZ - (dirp->loc % DIRBLKSIZ);
- filsize -= DIRBLKSIZ - (dirp->loc % DIRBLKSIZ);
- return(dp);
- }
- dirp->loc -= dp->d_reclen;
- filsize += dp->d_reclen;
- dp->d_reclen = DIRBLKSIZ - (dirp->loc % DIRBLKSIZ);
+ if (idesc->id_loc % DIRBLKSIZ == 0 && idesc->id_filesize > 0 &&
+ idesc->id_loc < blksiz) {
+ dp = (DIRECT *)(dirblk.b_buf + idesc->id_loc);
+ if (dircheck(idesc, dp))
+ goto dpok;
+ idesc->id_loc += DIRBLKSIZ;
+ idesc->id_filesize -= DIRBLKSIZ;
+ dp->d_reclen = DIRBLKSIZ;
+ dp->d_ino = 0;
+ dp->d_namlen = 0;
+ dp->d_name[0] = '\0';
+ if (dofix(idesc))
dirty(&fileblk);
- continue;
- }
return (dp);
}
+dpok:
+ if (idesc->id_filesize <= 0 || idesc->id_loc >= blksiz)
+ return NULL;
+ dp = (DIRECT *)(dirblk.b_buf + idesc->id_loc);
+ idesc->id_loc += dp->d_reclen;
+ idesc->id_filesize -= dp->d_reclen;
+ ndp = (DIRECT *)(dirblk.b_buf + idesc->id_loc);
+ if ((idesc->id_filesize <= 0 && idesc->id_loc % DIRBLKSIZ != 0) ||
+ (idesc->id_loc < blksiz && idesc->id_filesize > 0 &&
+ dircheck(idesc, ndp) == 0)) {
+ size = DIRBLKSIZ - (idesc->id_loc % DIRBLKSIZ);
+ dp->d_reclen += size;
+ idesc->id_loc += size;
+ idesc->id_filesize -= size;
+ if (dofix(idesc))
+ dirty(&fileblk);
+ }
+ return (dp);
+}
+
+/*
+ * Verify that a directory entry is valid.
+ * This is a superset of the checks made in the kernel.
+ */
+dircheck(idesc, dp)
+ struct inodesc *idesc;
+ register DIRECT *dp;
+{
+ register int size;
+ register char *cp;
+ int spaceleft;
+
+ size = DIRSIZ(dp);
+ spaceleft = DIRBLKSIZ - (idesc->id_loc % DIRBLKSIZ);
+ if (dp->d_ino < imax &&
+ dp->d_reclen != 0 &&
+ dp->d_reclen <= spaceleft &&
+ (dp->d_reclen & 0x3) == 0 &&
+ dp->d_reclen >= size &&
+ idesc->id_filesize >= size &&
+ dp->d_namlen <= MAXNAMLEN) {
+ if (dp->d_ino == 0)
+ return (1);
+ for (cp = dp->d_name, size = 0; size < dp->d_namlen; size++)
+ if (*cp == 0 || (*cp++ & 0200))
+ return (0);
+ if (*cp == 0)
+ return (1);
+ }
+ return (0);
}
-direrr(s)
+direrr(ino, s)
+ ino_t ino;
char *s;
{
register DINODE *dp;
pwarn("%s ", s);
- pinode();
+ pinode(ino);
printf("\n");
- if ((dp = ginode()) != NULL && ftypeok(dp))
- pfatal("%s=%s", DIRCT?"DIR":"FILE", pathname);
+ if ((dp = ginode(ino)) != NULL && ftypeok(dp))
+ pfatal("%s=%s\n", DIRCT?"DIR":"FILE", pathname);
else
- pfatal("NAME=%s", pathname);
- return (reply("REMOVE"));
+ pfatal("NAME=%s\n", pathname);
}
-adjust(lcnt)
- register short lcnt;
+adjust(idesc, lcnt)
+ register struct inodesc *idesc;
+ short lcnt;
{
register DINODE *dp;
- if ((dp = ginode()) == NULL)
+ if ((dp = ginode(idesc->id_number)) == NULL)
return;
if (dp->di_nlink == lcnt) {
- if (linkup() == 0)
- clri("UNREF", 0);
+ if (linkup(idesc->id_number, (ino_t)0) == 0)
+ clri(idesc, "UNREF", 0);
}
else {
pwarn("LINK COUNT %s",
- (lfdir==inum)?lfname:(DIRCT?"DIR":"FILE"));
- pinode();
+ (lfdir==idesc->id_number)?lfname:(DIRCT?"DIR":"FILE"));
+ pinode(idesc->id_number);
printf(" COUNT %d SHOULD BE %d",
dp->di_nlink, dp->di_nlink-lcnt);
if (preen) {
}
}
-clri(s, flg)
+clri(idesc, s, flg)
+ register struct inodesc *idesc;
char *s;
+ int flg;
{
register DINODE *dp;
- if ((dp = ginode()) == NULL)
+ if ((dp = ginode(idesc->id_number)) == NULL)
return;
if (flg == 1) {
pwarn("%s %s", s, DIRCT?"DIR":"FILE");
- pinode();
+ pinode(idesc->id_number);
}
if (preen || reply("CLEAR") == 1) {
if (preen)
printf(" (CLEARED)\n");
n_files--;
- pfunc = pass4;
- ckinode(dp, ADDR);
+ (void)ckinode(dp, idesc);
zapino(dp);
- setstate(USTATE);
+ statemap[idesc->id_number] = USTATE;
inodirty();
inosumbad++;
}
}
-setup(dev)
- char *dev;
-{
- dev_t rootdev;
- struct ostat statb;
- int super = bflag ? bflag : SBLOCK;
-
- bflag = 0;
- if (stat("/", &statb) < 0)
- errexit("Can't stat root\n");
- rootdev = statb.st_dev;
- if (stat(dev, &statb) < 0) {
- error("Can't stat %s\n", dev);
- return (0);
- }
- rawflg = 0;
- if ((statb.st_mode & S_IFMT) == S_IFBLK)
- ;
- else if ((statb.st_mode & S_IFMT) == S_IFCHR)
- rawflg++;
- else {
- if (reply("file is not a block or character device; OK") == 0)
- return (0);
- }
- if (rootdev == statb.st_rdev)
- hotroot++;
- if ((dfile.rfdes = open(dev, 0)) < 0) {
- error("Can't open %s\n", dev);
- return (0);
- }
- if (preen == 0)
- printf("** %s", dev);
- if (nflag || (dfile.wfdes = open(dev, 1)) < 0) {
- dfile.wfdes = -1;
- if (preen)
- pfatal("NO WRITE ACCESS");
- printf(" (NO WRITE)");
- }
- if (preen == 0)
- printf("\n");
- fixcg = 0; inosumbad = 0; offsumbad = 0; frsumbad = 0;
- dfile.mod = 0;
- n_files = n_blks = n_ffree = n_bfree = 0;
- muldup = enddup = &duplist[0];
- badlnp = &badlncnt[0];
- lfdir = 0;
- rplyflag = 0;
- initbarea(&sblk);
- initbarea(&fileblk);
- initbarea(&inoblk);
- initbarea(&cgblk);
- if (bread(&dfile, &sblock, super, SBSIZE) == 0)
- return (0);
- sblk.b_bno = super;
- sblk.b_size = SBSIZE;
- /*
- * run a few consistency checks of the super block
- */
- if (sblock.fs_magic != FS_MAGIC)
- { badsb("MAGIC NUMBER WRONG"); return (0); }
- if (sblock.fs_ncg < 1)
- { badsb("NCG OUT OF RANGE"); return (0); }
- if (sblock.fs_cpg < 1 || sblock.fs_cpg > MAXCPG)
- { badsb("CPG OUT OF RANGE"); return (0); }
- if (sblock.fs_nsect < 1)
- { badsb("NSECT < 1"); return (0); }
- if (sblock.fs_ntrak < 1)
- { badsb("NTRAK < 1"); return (0); }
- if (sblock.fs_spc != sblock.fs_nsect * sblock.fs_ntrak)
- { badsb("SPC DOES NOT JIVE w/NTRAK*NSECT"); return (0); }
- if (sblock.fs_ipg % INOPB(&sblock))
- { badsb("INODES NOT MULTIPLE OF A BLOCK"); return (0); }
- if (cgdmin(&sblock, 0) >= sblock.fs_cpg * sblock.fs_spc / NSPF(&sblock))
- { badsb("IMPLIES MORE INODE THAN DATA BLOCKS"); return (0); }
- if (sblock.fs_ncg * sblock.fs_cpg < sblock.fs_ncyl ||
- (sblock.fs_ncg - 1) * sblock.fs_cpg >= sblock.fs_ncyl)
- { badsb("NCYL DOES NOT JIVE WITH NCG*CPG"); return (0); }
- if (sblock.fs_fpg != sblock.fs_cpg * sblock.fs_spc / NSPF(&sblock))
- { badsb("FPG DOES NOT JIVE WITH CPG & SPC"); return (0); }
- if (sblock.fs_size * NSPF(&sblock) <=
- (sblock.fs_ncyl - 1) * sblock.fs_spc)
- { badsb("SIZE PREPOSTEROUSLY SMALL"); return (0); }
- if (sblock.fs_size * NSPF(&sblock) > sblock.fs_ncyl * sblock.fs_spc)
- { badsb("SIZE PREPOSTEROUSLY LARGE"); return (0); }
- /* rest we COULD repair... */
- if (sblock.fs_sblkno != SBLOCK)
- { badsb("SBLKNO CORRUPTED"); return (0); }
- if (sblock.fs_cblkno !=
- roundup(howmany(BBSIZE + SBSIZE, sblock.fs_fsize), sblock.fs_frag))
- { badsb("CBLKNO CORRUPTED"); return (0); }
- if (sblock.fs_iblkno != sblock.fs_cblkno + sblock.fs_frag)
- { badsb("IBLKNO CORRUPTED"); return (0); }
- if (sblock.fs_dblkno !=
- sblock.fs_iblkno + sblock.fs_ipg / INOPF(&sblock))
- { badsb("DBLKNO CORRUPTED"); return (0); }
- if (sblock.fs_cgsize != fragroundup(&sblock,
- sizeof(struct cg) + howmany(sblock.fs_fpg, NBBY)))
- { badsb("CGSIZE INCORRECT"); return (0); }
- if (sblock.fs_cssize != sblock.fs_ncg * sizeof(struct csum))
- { badsb("CSSIZE INCORRECT"); return (0); }
- fmax = sblock.fs_size;
- imax = sblock.fs_ncg * sblock.fs_ipg;
- /*
- * allocate the necessary maps
- */
- bmapsz = roundup(howmany(fmax, NBBY), sizeof(short));
- blockmap = (char *)calloc(bmapsz, sizeof (char));
- freemap = (char *)calloc(bmapsz, sizeof (char));
- statemap = (char *)calloc(imax+1, sizeof(char));
- lncntp = (short *)calloc(imax+1, sizeof(short));
-
- startinum = imax + 1;
- return (1);
-
-badsb:
- ckfini();
- return (0);
-}
-
badsb(s)
char *s;
{
}
DINODE *
-ginode()
+ginode(inumber)
+ ino_t inumber;
{
daddr_t iblk;
+ static ino_t startinum = 0; /* blk num of first in raw area */
+
- if (inum < ROOTINO || inum > imax)
+ if (inumber < ROOTINO || inumber > imax) {
+ if (debug && inumber > imax)
+ printf("inumber out of range (%d)\n", inumber);
return (NULL);
- if (inum < startinum || inum >= startinum + INOPB(&sblock)) {
- iblk = itod(&sblock, inum);
+ }
+ if (startinum == 0 ||
+ inumber < startinum || inumber >= startinum + INOPB(&sblock)) {
+ iblk = itod(&sblock, inumber);
if (getblk(&inoblk, iblk, sblock.fs_bsize) == NULL) {
return (NULL);
}
- startinum = (inum / INOPB(&sblock)) * INOPB(&sblock);
+ startinum = (inumber / INOPB(&sblock)) * INOPB(&sblock);
}
- return (&inoblk.b_un.b_dinode[inum % INOPB(&sblock)]);
+ return (&inoblk.b_un.b_dinode[inumber % INOPB(&sblock)]);
}
ftypeok(dp)
case IFBLK:
case IFCHR:
case IFLNK:
+ case IFSOCK:
return (1);
default:
+ if (debug)
+ printf("bad file type 0%o\n", dp->di_mode);
return (0);
}
}
BUFAREA *
getblk(bp, blk, size)
- daddr_t blk;
register BUFAREA *bp;
- int size;
+ daddr_t blk;
+ long size;
{
register struct filecntl *fcp;
daddr_t dblk;
{
if (bp->b_dirty)
- bwrite(fcp, bp->b_un.b_buf, bp->b_bno, bp->b_size);
+ (void)bwrite(fcp, bp->b_un.b_buf, bp->b_bno, (long)bp->b_size);
bp->b_dirty = 0;
}
flush(&dfile, &sblk);
}
flush(&dfile, &inoblk);
- close(dfile.rfdes);
- close(dfile.wfdes);
+ (void)close(dfile.rfdes);
+ (void)close(dfile.wfdes);
}
-pinode()
+pinode(ino)
+ ino_t ino;
{
register DINODE *dp;
register char *p;
char uidbuf[BUFSIZ];
char *ctime();
- printf(" I=%u ", inum);
- if ((dp = ginode()) == NULL)
+ printf(" I=%u ", ino);
+ if ((dp = ginode(ino)) == NULL)
return;
printf(" OWNER=");
if (getpw((int)dp->di_uid, uidbuf) == 0) {
printf("MTIME=%12.12s %4.4s ", p+4, p+20);
}
-copy(fp, tp, size)
- register char *tp, *fp;
- unsigned size;
-{
-
- while (size--)
- *tp++ = *fp++;
-}
-
makecg()
{
int c, blk;
- daddr_t dbase, d, dmin, dmax;
+ daddr_t dbase, d, dlower, dupper, dmax;
long i, j, s;
+ ino_t inumber;
register struct csum *cs;
register DINODE *dp;
sblock.fs_cstotal.cs_nffree = 0;
sblock.fs_cstotal.cs_nifree = 0;
sblock.fs_cstotal.cs_ndir = 0;
- for (i = 0; i < howmany(sblock.fs_cssize, sblock.fs_bsize); i++) {
- sblock.fs_csp[i] = (struct csum *)calloc(1, sblock.fs_bsize);
- bread(&dfile, (char *)sblock.fs_csp[i],
- fsbtodb(&sblock, sblock.fs_csaddr + (i * sblock.fs_frag)),
- sblock.fs_bsize);
- }
for (c = 0; c < sblock.fs_ncg; c++) {
dbase = cgbase(&sblock, c);
dmax = dbase + sblock.fs_fpg;
clrbit(cgrp.cg_free, dmax - dbase);
dmax++;
}
- dmin = sblock.fs_dblkno;
+ dlower = cgsblock(&sblock, c) - dbase;
+ dupper = cgdmin(&sblock, c) - dbase;
cs = &sblock.fs_cs(&sblock, c);
- cgrp.cg_time = time(0);
+ (void)time(&cgrp.cg_time);
cgrp.cg_magic = CG_MAGIC;
cgrp.cg_cgx = c;
- cgrp.cg_ncyl = sblock.fs_cpg;
+ if (c == sblock.fs_ncg - 1)
+ cgrp.cg_ncyl = sblock.fs_ncyl % sblock.fs_cpg;
+ else
+ cgrp.cg_ncyl = sblock.fs_cpg;
cgrp.cg_niblk = sblock.fs_ipg;
cgrp.cg_ndblk = dmax - dbase;
cgrp.cg_cs.cs_ndir = 0;
cgrp.cg_cs.cs_nffree = 0;
cgrp.cg_cs.cs_nbfree = 0;
cgrp.cg_cs.cs_nifree = 0;
- cgrp.cg_rotor = dmin;
- cgrp.cg_frotor = dmin;
+ cgrp.cg_rotor = 0;
+ cgrp.cg_frotor = 0;
cgrp.cg_irotor = 0;
for (i = 0; i < sblock.fs_frag; i++)
cgrp.cg_frsum[i] = 0;
- inum = sblock.fs_ipg * c;
- for (i = 0; i < sblock.fs_ipg; inum++, i++) {
+ inumber = sblock.fs_ipg * c;
+ for (i = 0; i < sblock.fs_ipg; inumber++, i++) {
cgrp.cg_cs.cs_nifree++;
clrbit(cgrp.cg_iused, i);
- dp = ginode();
+ dp = ginode(inumber);
if (dp == NULL)
continue;
if (ALLOC) {
cgrp.cg_b[s][i] = 0;
}
if (c == 0) {
- dmin += howmany(sblock.fs_cssize, sblock.fs_bsize) *
- sblock.fs_frag;
+ dupper += howmany(sblock.fs_cssize, sblock.fs_fsize);
}
- for (d = 0; d < dmin; d++)
+ for (d = dlower; d < dupper; d++)
clrbit(cgrp.cg_free, d);
- for (; (d + sblock.fs_frag) <= dmax - dbase; d += sblock.fs_frag) {
+ for (d = 0; (d + sblock.fs_frag) <= dmax - dbase;
+ d += sblock.fs_frag) {
j = 0;
for (i = 0; i < sblock.fs_frag; i++) {
- if (!getbmap(dbase+d+i)) {
- setbit(cgrp.cg_free, d+i);
+ if (!getbmap(dbase + d + i)) {
+ setbit(cgrp.cg_free, d + i);
j++;
} else
clrbit(cgrp.cg_free, d+i);
[cbtorpos(&sblock, d)]++;
} else if (j > 0) {
cgrp.cg_cs.cs_nffree += j;
- blk = ((cgrp.cg_free[d / NBBY] >> (d % NBBY)) &
- (0xff >> (NBBY - sblock.fs_frag)));
+ blk = blkmap(&sblock, cgrp.cg_free, d);
fragacct(&sblock, blk, cgrp.cg_frsum, 1);
}
}
for (j = d; d < dmax - dbase; d++) {
- if (!getbmap(dbase+d)) {
+ if (!getbmap(dbase + d)) {
setbit(cgrp.cg_free, d);
cgrp.cg_cs.cs_nffree++;
} else
clrbit(cgrp.cg_free, d);
}
+ for (; d % sblock.fs_frag != 0; d++)
+ clrbit(cgrp.cg_free, d);
if (j != d) {
- blk = ((cgrp.cg_free[j / NBBY] >> (j % NBBY)) &
- (0xff >> (NBBY - sblock.fs_frag)));
+ blk = blkmap(&sblock, cgrp.cg_free, j);
fragacct(&sblock, blk, cgrp.cg_frsum, 1);
}
- for (; d < MAXBPG(&sblock); d++)
- clrbit(cgrp.cg_free, d);
+ for (d /= sblock.fs_frag; d < MAXBPG(&sblock); d ++)
+ clrblock(&sblock, cgrp.cg_free, d);
sblock.fs_cstotal.cs_nffree += cgrp.cg_cs.cs_nffree;
sblock.fs_cstotal.cs_nbfree += cgrp.cg_cs.cs_nbfree;
sblock.fs_cstotal.cs_nifree += cgrp.cg_cs.cs_nifree;
sblock.fs_cstotal.cs_ndir += cgrp.cg_cs.cs_ndir;
*cs = cgrp.cg_cs;
- bwrite(&dfile, &cgrp, fsbtodb(&sblock, cgtod(&sblock, c)),
- sblock.fs_cgsize);
+ (void)bwrite(&dfile, (char *)&cgrp,
+ fsbtodb(&sblock, cgtod(&sblock, c)), sblock.fs_cgsize);
}
- for (i = 0; i < howmany(sblock.fs_cssize, sblock.fs_bsize); i++) {
- bwrite(&dfile, (char *)sblock.fs_csp[i],
- fsbtodb(&sblock, sblock.fs_csaddr + (i * sblock.fs_frag)),
- sblock.fs_bsize);
+ for (i = 0, j = 0; i < sblock.fs_cssize; i += sblock.fs_bsize, j++) {
+ (void)bwrite(&dfile, (char *)sblock.fs_csp[j],
+ fsbtodb(&sblock, sblock.fs_csaddr + j * sblock.fs_frag),
+ sblock.fs_cssize - i < sblock.fs_bsize ?
+ sblock.fs_cssize - i : sblock.fs_bsize);
}
sblock.fs_ronly = 0;
sblock.fs_fmod = 0;
sbdirty();
}
-/*
- * update the frsum fields to reflect addition or deletion
- * of some frags
- */
-fragacct(fs, fragmap, fraglist, cnt)
- struct fs *fs;
- int fragmap;
- long fraglist[];
- int cnt;
+findino(idesc)
+ struct inodesc *idesc;
{
- int inblk;
- register int field, subfield;
- register int siz, pos;
-
- inblk = (int)(fragtbl[fs->fs_frag][fragmap] << 1);
- fragmap <<= 1;
- for (siz = 1; siz < fs->fs_frag; siz++) {
- if ((inblk & (1 << (siz + (fs->fs_frag % NBBY)))) == 0)
- continue;
- field = around[siz];
- subfield = inside[siz];
- for (pos = siz; pos <= fs->fs_frag; pos++) {
- if ((fragmap & field) == subfield) {
- fraglist[siz] += cnt;
- pos += siz;
- field <<= siz;
- subfield <<= siz;
- }
- field <<= 1;
- subfield <<= 1;
- }
- }
-}
+ register DIRECT *dirp = idesc->id_dirp;
-findino(dirp)
- register DIRECT *dirp;
-{
if (dirp->d_ino == 0)
return (KEEPON);
if (!strcmp(dirp->d_name, srchname)) {
if (dirp->d_ino >= ROOTINO && dirp->d_ino <= imax)
- parentdir = dirp->d_ino;
+ idesc->id_parent = dirp->d_ino;
return (STOP);
}
return (KEEPON);
}
-mkentry(dirp)
- register DIRECT *dirp;
+mkentry(idesc)
+ struct inodesc *idesc;
{
- register ino_t in;
- register char *p;
+ register DIRECT *dirp = idesc->id_dirp;
DIRECT newent;
int newlen, oldlen;
newent.d_reclen = dirp->d_reclen - oldlen;
dirp->d_reclen = oldlen;
dirp = (struct direct *)(((char *)dirp) + oldlen);
- dirp->d_ino = orphan;
+ dirp->d_ino = idesc->id_parent; /* ino to be entered is in id_parent */
dirp->d_reclen = newent.d_reclen;
- p = &dirp->d_name[2];
- for (in = imax; in > 0; in /= 10)
- p++;
- *--p = 0;
- dirp->d_namlen = p - dirp->d_name;
- in = orphan;
- while (p > dirp->d_name) {
- *--p = (in % 10) + '0';
- in /= 10;
- }
- *p = '#';
- return (ALTERD|STOP);
+ dirp->d_namlen = lftempname(dirp->d_name, idesc->id_parent);
+ return (ALTERED|STOP);
}
-chgdd(dirp)
- register DIRECT *dirp;
+chgdd(idesc)
+ struct inodesc *idesc;
{
+ register DIRECT *dirp = idesc->id_dirp;
+
if (dirp->d_name[0] == '.' && dirp->d_name[1] == '.' &&
dirp->d_name[2] == 0) {
dirp->d_ino = lfdir;
- return (ALTERD|STOP);
+ return (ALTERED|STOP);
}
return (KEEPON);
}
-linkup()
+linkup(orphan, pdir)
+ ino_t orphan;
+ ino_t pdir;
{
register DINODE *dp;
- register lostdir;
- register ino_t pdir;
+ int lostdir, len;
+ struct inodesc idesc;
- if ((dp = ginode()) == NULL)
+ bzero((char *)&idesc, sizeof(struct inodesc));
+ if ((dp = ginode(orphan)) == NULL)
return (0);
lostdir = DIRCT;
- pdir = parentdir;
pwarn("UNREF %s ", lostdir ? "DIR" : "FILE");
- pinode();
+ pinode(orphan);
if (preen && dp->di_size == 0)
return (0);
if (preen)
else
if (reply("RECONNECT") == 0)
return (0);
- orphan = inum;
+ pathp = pathname;
+ *pathp++ = '/';
+ *pathp = '\0';
if (lfdir == 0) {
- inum = ROOTINO;
- if ((dp = ginode()) == NULL) {
- inum = orphan;
+ if ((dp = ginode(ROOTINO)) == NULL)
return (0);
- }
- pfunc = findino;
srchname = lfname;
- filsize = dp->di_size;
- parentdir = 0;
- ckinode(dp, DATA);
- inum = orphan;
- if ((lfdir = parentdir) == 0) {
+ idesc.id_type = DATA;
+ idesc.id_func = findino;
+ idesc.id_number = ROOTINO;
+ idesc.id_filesize = dp->di_size;
+ (void)ckinode(dp, &idesc);
+ if ((lfdir = idesc.id_parent) == 0) {
pfatal("SORRY. NO lost+found DIRECTORY");
printf("\n\n");
return (0);
}
}
- inum = lfdir;
- if ((dp = ginode()) == NULL || !DIRCT || getstate() != FSTATE) {
- inum = orphan;
+ if ((dp = ginode(lfdir)) == NULL ||
+ !DIRCT || statemap[lfdir] != FSTATE) {
pfatal("SORRY. NO lost+found DIRECTORY");
printf("\n\n");
return (0);
dp->di_size = fragroundup(&sblock, dp->di_size);
inodirty();
}
- filsize = dp->di_size;
- inum = orphan;
- pfunc = mkentry;
- if ((ckinode(dp, DATA) & ALTERD) == 0) {
+ len = strlen(lfname);
+ bcopy(lfname, pathp, len + 1);
+ pathp += len;
+ idesc.id_type = DATA;
+ idesc.id_func = mkentry;
+ idesc.id_number = lfdir;
+ idesc.id_filesize = dp->di_size;
+ idesc.id_parent = orphan; /* this is the inode to enter */
+ idesc.id_fix = DONTKNOW;
+ if ((ckinode(dp, &idesc) & ALTERED) == 0) {
pfatal("SORRY. NO SPACE IN lost+found DIRECTORY");
printf("\n\n");
return (0);
}
- declncnt();
+ lncntp[orphan]--;
+ *pathp++ = '/';
+ pathp += lftempname(pathp, orphan);
if (lostdir) {
- pfunc = chgdd;
- dp = ginode();
- filsize = dp->di_size;
- ckinode(dp, DATA);
- inum = lfdir;
- if ((dp = ginode()) != NULL) {
+ dp = ginode(orphan);
+ idesc.id_type = DATA;
+ idesc.id_func = chgdd;
+ idesc.id_number = orphan;
+ idesc.id_filesize = dp->di_size;
+ idesc.id_fix = DONTKNOW;
+ (void)ckinode(dp, &idesc);
+ if ((dp = ginode(lfdir)) != NULL) {
dp->di_nlink++;
inodirty();
- setlncnt(getlncnt()+1);
+ lncntp[lfdir]++;
}
- inum = orphan;
pwarn("DIR I=%u CONNECTED. ", orphan);
printf("PARENT WAS I=%u\n", pdir);
if (preen == 0)
return (1);
}
+/*
+ * generate a temporary name for the lost+found directory.
+ */
+lftempname(bufp, ino)
+ char *bufp;
+ ino_t ino;
+{
+ register ino_t in;
+ register char *cp;
+ int namlen;
+
+ cp = bufp + 2;
+ for (in = imax; in > 0; in /= 10)
+ cp++;
+ *--cp = 0;
+ namlen = cp - bufp;
+ in = ino;
+ while (cp > bufp) {
+ *--cp = (in % 10) + '0';
+ in /= 10;
+ }
+ *cp = '#';
+ return (namlen);
+}
+
bread(fcp, buf, blk, size)
- daddr_t blk;
register struct filecntl *fcp;
- register size;
char *buf;
+ daddr_t blk;
+ long size;
{
- if (lseek(fcp->rfdes, blk * DEV_BSIZE, 0) < 0)
+ if (lseek(fcp->rfdes, (long)dbtob(blk), 0) < 0)
rwerr("SEEK", blk);
- else if (read(fcp->rfdes, buf, size) == size)
+ else if (read(fcp->rfdes, buf, (int)size) == size)
return (1);
rwerr("READ", blk);
return (0);
}
bwrite(fcp, buf, blk, size)
- daddr_t blk;
register struct filecntl *fcp;
- register size;
char *buf;
+ daddr_t blk;
+ long size;
{
if (fcp->wfdes < 0)
return (0);
- if (lseek(fcp->wfdes, blk * DEV_BSIZE, 0) < 0)
+ if (lseek(fcp->wfdes, (long)dbtob(blk), 0) < 0)
rwerr("SEEK", blk);
- else if (write(fcp->wfdes, buf, size) == size) {
+ else if (write(fcp->wfdes, buf, (int)size) == size) {
fcp->mod = 1;
return (1);
}
exit(12);
}
+char *
+unrawname(cp)
+ char *cp;
+{
+ char *dp = rindex(cp, '/');
+ struct stat stb;
+
+ if (dp == 0)
+ return (cp);
+ if (stat(cp, &stb) < 0)
+ return (cp);
+ if ((stb.st_mode&S_IFMT) != S_IFCHR)
+ return (cp);
+ if (*(dp+1) != 'r')
+ return (cp);
+ (void)strcpy(dp+1, dp+2);
+ return (cp);
+}
+
+char *
+rawname(cp)
+ char *cp;
+{
+ static char rawbuf[32];
+ char *dp = rindex(cp, '/');
+
+ if (dp == 0)
+ return (0);
+ *dp = 0;
+ (void)strcpy(rawbuf, cp);
+ *dp = '/';
+ (void)strcat(rawbuf, "/r");
+ (void)strcat(rawbuf, dp+1);
+ return (rawbuf);
+}
+
/*
- * block operations
+ * determine whether an inode should be fixed.
*/
-
-isblock(fs, cp, h)
- struct fs *fs;
- unsigned char *cp;
- int h;
+dofix(idesc)
+ register struct inodesc *idesc;
{
- unsigned char mask;
-
- switch (fs->fs_frag) {
- case 8:
- return (cp[h] == 0xff);
- case 4:
- mask = 0x0f << ((h & 0x1) << 2);
- return ((cp[h >> 1] & mask) == mask);
- case 2:
- mask = 0x03 << ((h & 0x3) << 1);
- return ((cp[h >> 2] & mask) == mask);
- case 1:
- mask = 0x01 << (h & 0x7);
- return ((cp[h >> 3] & mask) == mask);
- default:
- error("isblock bad fs_frag %d\n", fs->fs_frag);
+
+ switch (idesc->id_fix) {
+
+ case DONTKNOW:
+ direrr(idesc->id_number, "DIRECTORY CORRUPTED");
+ if (reply("SALVAGE") == 0) {
+ idesc->id_fix = NOFIX;
+ return (0);
+ }
+ idesc->id_fix = FIX;
+ return (ALTERED);
+
+ case FIX:
+ return (ALTERED);
+
+ case NOFIX:
return (0);
+
+ default:
+ errexit("UNKNOWN INODESC FIX MODE %d\n", idesc->id_fix);
+ }
+ /* NOTREACHED */
+}
+
+/* VARARGS1 */
+error(s1, s2, s3, s4)
+ char *s1;
+{
+
+ printf(s1, s2, s3, s4);
+}
+
+/* VARARGS1 */
+errexit(s1, s2, s3, s4)
+ char *s1;
+{
+ error(s1, s2, s3, s4);
+ exit(8);
+}
+
+/*
+ * An inconsistency occured which shouldn't during normal operations.
+ * Die if preening, otherwise just printf.
+ */
+/* VARARGS1 */
+pfatal(s, a1, a2, a3)
+ char *s;
+{
+
+ if (preen) {
+ printf("%s: ", devname);
+ printf(s, a1, a2, a3);
+ printf("\n");
+ preendie();
}
+ printf(s, a1, a2, a3);
+}
+
+preendie()
+{
+
+ printf("%s: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.\n", devname);
+ exit(8);
+}
+
+/*
+ * Pwarn is like printf when not preening,
+ * or a warning (preceded by filename) when preening.
+ */
+/* VARARGS1 */
+pwarn(s, a1, a2, a3, a4, a5, a6)
+ char *s;
+{
+
+ if (preen)
+ printf("%s: ", devname);
+ printf(s, a1, a2, a3, a4, a5, a6);
+}
+
+#ifndef lint
+/*
+ * Stub for routines from kernel.
+ */
+panic(s)
+ char *s;
+{
+
+ pfatal("INTERNAL INCONSISTENCY: %s\n", s);
+ exit(12);
}
+#endif