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6 * modification, are permitted provided that the following conditions
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29 * @(#)pass2.c 8.9 (Berkeley) 4/28/95
30 * $FreeBSD: src/sbin/fsck/pass2.c,v 1.10.2.2 2001/11/24 15:14:59 iedowse Exp $
33 #include <sys/param.h>
35 #include <vfs/ufs/dinode.h>
36 #include <vfs/ufs/dir.h>
43 #define MINDIRSIZE (sizeof (struct dirtemplate))
45 static int blksort(const void *, const void *);
46 static int pass2check(struct inodesc *);
51 struct ufs1_dinode *dp;
52 struct inoinfo **inpp, *inp;
53 struct inoinfo **inpend;
54 struct inodesc curino;
55 struct ufs1_dinode dino;
56 char pathbuf[MAXPATHLEN + 1];
59 switch (inoinfo(UFS_ROOTINO)->ino_state) {
62 pfatal("ROOT INODE UNALLOCATED");
63 if (reply("ALLOCATE") == 0) {
67 if (allocdir(UFS_ROOTINO, UFS_ROOTINO, 0755) != UFS_ROOTINO)
68 errx(EEXIT, "CANNOT ALLOCATE ROOT INODE");
72 pfatal("DUPS/BAD IN ROOT INODE");
73 if (reply("REALLOCATE")) {
75 if (allocdir(UFS_ROOTINO, UFS_ROOTINO, 0755) !=
77 errx(EEXIT, "CANNOT ALLOCATE ROOT INODE");
80 if (reply("CONTINUE") == 0) {
88 pfatal("ROOT INODE NOT DIRECTORY");
89 if (reply("REALLOCATE")) {
91 if (allocdir(UFS_ROOTINO, UFS_ROOTINO, 0755) !=
93 errx(EEXIT, "CANNOT ALLOCATE ROOT INODE");
96 if (reply("FIX") == 0) {
100 dp = ginode(UFS_ROOTINO);
101 dp->di_mode &= ~IFMT;
102 dp->di_mode |= IFDIR;
110 errx(EEXIT, "BAD STATE %d FOR ROOT INODE",
111 inoinfo(UFS_ROOTINO)->ino_state);
113 inoinfo(UFS_ROOTINO)->ino_state = DFOUND;
115 inoinfo(UFS_WINO)->ino_state = FSTATE;
116 inoinfo(UFS_WINO)->ino_type = DT_WHT;
119 * Sort the directory list into disk block order. Do this in blocks
120 * of 1000 directories in order to maintain locality of reference
121 * in memory in case fsck is using swap space.
123 for (i = 0; i < inplast; i += 1000) {
124 if ((n = inplast - i) > 1000)
126 qsort(inpsort + i, (size_t)n, sizeof *inpsort, blksort);
130 * Check the integrity of each directory.
132 memset(&curino, 0, sizeof(struct inodesc));
133 curino.id_type = DATA;
134 curino.id_func = pass2check;
136 inpend = &inpsort[inplast];
137 for (inpp = inpsort; inpp < inpend; inpp++) {
139 printf("%s: phase 2: dir %d of %ld (%d%%)\n", cdevname,
140 (int)(inpp - inpsort), inplast, (int)((inpp - inpsort) * 100 /
145 if (inp->i_isize == 0)
147 if (inp->i_isize < MINDIRSIZE) {
148 direrror(inp->i_number, "DIRECTORY TOO SHORT");
149 inp->i_isize = roundup(MINDIRSIZE, DIRBLKSIZ);
150 if (reply("FIX") == 1) {
151 dp = ginode(inp->i_number);
152 dp->di_size = inp->i_isize;
156 } else if ((inp->i_isize & (DIRBLKSIZ - 1)) != 0) {
157 getpathname(pathbuf, inp->i_number, inp->i_number);
159 pfatal("%s %s: LENGTH %zu NOT MULTIPLE OF %d",
160 "DIRECTORY", pathbuf, inp->i_isize,
163 pwarn("%s %s: LENGTH %zu NOT MULTIPLE OF %d",
164 "DIRECTORY", pathbuf, inp->i_isize,
167 printf(" (ADJUSTED)\n");
168 inp->i_isize = roundup(inp->i_isize, DIRBLKSIZ);
169 if (preen || reply("ADJUST") == 1) {
170 dp = ginode(inp->i_number);
171 dp->di_size = roundup(inp->i_isize, DIRBLKSIZ);
176 memset(&dino, 0, sizeof(struct ufs1_dinode));
177 dino.di_mode = IFDIR;
178 dp->di_size = inp->i_isize;
179 memmove(&dp->di_db[0], &inp->i_blks[0], (size_t)inp->i_numblks);
180 curino.id_number = inp->i_number;
181 curino.id_parent = inp->i_parent;
182 ckinode(dp, &curino);
185 * Now that the parents of all directories have been found,
186 * make another pass to verify the value of `..'
188 for (inpp = inpsort; inpp < inpend; inpp++) {
190 if (inp->i_parent == 0 || inp->i_isize == 0)
192 if (inoinfo(inp->i_parent)->ino_state == DFOUND &&
193 inoinfo(inp->i_number)->ino_state == DSTATE)
194 inoinfo(inp->i_number)->ino_state = DFOUND;
195 if (inp->i_dotdot == inp->i_parent ||
196 inp->i_dotdot == (ufs1_ino_t)-1)
198 if (inp->i_dotdot == 0) {
199 inp->i_dotdot = inp->i_parent;
200 fileerror(inp->i_parent, inp->i_number, "MISSING '..'");
201 if (reply("FIX") == 0)
203 makeentry(inp->i_number, inp->i_parent, "..");
204 inoinfo(inp->i_parent)->ino_linkcnt--;
207 fileerror(inp->i_parent, inp->i_number,
208 "BAD INODE NUMBER FOR '..'");
209 if (reply("FIX") == 0)
211 inoinfo(inp->i_dotdot)->ino_linkcnt++;
212 inoinfo(inp->i_parent)->ino_linkcnt--;
213 inp->i_dotdot = inp->i_parent;
214 changeino(inp->i_number, "..", inp->i_parent);
217 * Mark all the directories that can be found from the root.
223 pass2check(struct inodesc *idesc)
225 struct direct *dirp = idesc->id_dirp;
227 int n, entrysize, ret = 0;
228 struct ufs1_dinode *dp;
231 char namebuf[MAXPATHLEN + 1];
232 char pathbuf[MAXPATHLEN + 1];
235 * If converting, set directory entry type.
237 if (doinglevel2 && dirp->d_ino > 0 && dirp->d_ino < maxino) {
238 dirp->d_type = inoinfo(dirp->d_ino)->ino_type;
244 if (idesc->id_entryno != 0)
246 if (dirp->d_ino != 0 && strcmp(dirp->d_name, ".") == 0) {
247 if (dirp->d_ino != idesc->id_number) {
248 direrror(idesc->id_number, "BAD INODE NUMBER FOR '.'");
249 dirp->d_ino = idesc->id_number;
250 if (reply("FIX") == 1)
253 if (newinofmt && dirp->d_type != DT_DIR) {
254 direrror(idesc->id_number, "BAD TYPE VALUE FOR '.'");
255 dirp->d_type = DT_DIR;
256 if (reply("FIX") == 1)
261 direrror(idesc->id_number, "MISSING '.'");
262 proto.d_ino = idesc->id_number;
264 proto.d_type = DT_DIR;
268 strcpy(proto.d_name, ".");
269 # if BYTE_ORDER == LITTLE_ENDIAN
274 proto.d_type = proto.d_namlen;
275 proto.d_namlen = tmp;
278 entrysize = DIRSIZ(0, &proto);
279 if (dirp->d_ino != 0 && strcmp(dirp->d_name, "..") != 0) {
280 pfatal("CANNOT FIX, FIRST ENTRY IN DIRECTORY CONTAINS %s\n",
282 } else if (dirp->d_reclen < entrysize) {
283 pfatal("CANNOT FIX, INSUFFICIENT SPACE TO ADD '.'\n");
284 } else if (dirp->d_reclen < 2 * entrysize) {
285 proto.d_reclen = dirp->d_reclen;
286 memmove(dirp, &proto, (size_t)entrysize);
287 if (reply("FIX") == 1)
290 n = dirp->d_reclen - entrysize;
291 proto.d_reclen = entrysize;
292 memmove(dirp, &proto, (size_t)entrysize);
294 inoinfo(dirp->d_ino)->ino_linkcnt--;
295 dirp = (struct direct *)((char *)(dirp) + entrysize);
296 memset(dirp, 0, (size_t)n);
298 if (reply("FIX") == 1)
302 if (idesc->id_entryno > 1)
304 inp = getinoinfo(idesc->id_number);
305 proto.d_ino = inp->i_parent;
307 proto.d_type = DT_DIR;
311 strcpy(proto.d_name, "..");
312 # if BYTE_ORDER == LITTLE_ENDIAN
317 proto.d_type = proto.d_namlen;
318 proto.d_namlen = tmp;
321 entrysize = DIRSIZ(0, &proto);
322 if (idesc->id_entryno == 0) {
324 if (dirp->d_reclen < n + entrysize)
326 proto.d_reclen = dirp->d_reclen - n;
329 inoinfo(dirp->d_ino)->ino_linkcnt--;
330 dirp = (struct direct *)((char *)(dirp) + n);
331 memset(dirp, 0, (size_t)proto.d_reclen);
332 dirp->d_reclen = proto.d_reclen;
334 if (dirp->d_ino != 0 && strcmp(dirp->d_name, "..") == 0) {
335 inp->i_dotdot = dirp->d_ino;
336 if (newinofmt && dirp->d_type != DT_DIR) {
337 direrror(idesc->id_number, "BAD TYPE VALUE FOR '..'");
338 dirp->d_type = DT_DIR;
339 if (reply("FIX") == 1)
344 if (dirp->d_ino != 0 && strcmp(dirp->d_name, ".") != 0) {
345 fileerror(inp->i_parent, idesc->id_number, "MISSING '..'");
346 pfatal("CANNOT FIX, SECOND ENTRY IN DIRECTORY CONTAINS %s\n",
348 inp->i_dotdot = (ufs1_ino_t)-1;
349 } else if (dirp->d_reclen < entrysize) {
350 fileerror(inp->i_parent, idesc->id_number, "MISSING '..'");
351 pfatal("CANNOT FIX, INSUFFICIENT SPACE TO ADD '..'\n");
352 inp->i_dotdot = (ufs1_ino_t)-1;
353 } else if (inp->i_parent != 0) {
355 * We know the parent, so fix now.
357 inp->i_dotdot = inp->i_parent;
358 fileerror(inp->i_parent, idesc->id_number, "MISSING '..'");
359 proto.d_reclen = dirp->d_reclen;
360 memmove(dirp, &proto, (size_t)entrysize);
361 if (reply("FIX") == 1)
365 if (dirp->d_ino != 0)
366 inoinfo(dirp->d_ino)->ino_linkcnt--;
369 if (dirp->d_ino == 0)
371 if (dirp->d_namlen <= 2 &&
372 dirp->d_name[0] == '.' &&
373 idesc->id_entryno >= 2) {
374 if (dirp->d_namlen == 1) {
375 direrror(idesc->id_number, "EXTRA '.' ENTRY");
377 if (reply("FIX") == 1)
379 return (KEEPON | ret);
381 if (dirp->d_name[1] == '.') {
382 direrror(idesc->id_number, "EXTRA '..' ENTRY");
384 if (reply("FIX") == 1)
386 return (KEEPON | ret);
391 if (dirp->d_ino > maxino) {
392 fileerror(idesc->id_number, dirp->d_ino, "I OUT OF RANGE");
394 } else if (newinofmt &&
395 ((dirp->d_ino == UFS_WINO && dirp->d_type != DT_WHT) ||
396 (dirp->d_ino != UFS_WINO && dirp->d_type == DT_WHT))) {
397 fileerror(idesc->id_number, dirp->d_ino, "BAD WHITEOUT ENTRY");
398 dirp->d_ino = UFS_WINO;
399 dirp->d_type = DT_WHT;
400 if (reply("FIX") == 1)
404 switch (inoinfo(dirp->d_ino)->ino_state) {
406 if (idesc->id_entryno <= 2)
408 fileerror(idesc->id_number, dirp->d_ino, "UNALLOCATED");
414 if (idesc->id_entryno <= 2)
416 if (inoinfo(dirp->d_ino)->ino_state == FCLEAR)
418 else if (!preen && !usedsoftdep)
419 errmsg = "ZERO LENGTH DIRECTORY";
424 fileerror(idesc->id_number, dirp->d_ino, errmsg);
425 if ((n = reply("REMOVE")) == 1)
427 dp = ginode(dirp->d_ino);
428 inoinfo(dirp->d_ino)->ino_state =
429 (dp->di_mode & IFMT) == IFDIR ? DSTATE : FSTATE;
430 inoinfo(dirp->d_ino)->ino_linkcnt = dp->di_nlink;
434 if (inoinfo(idesc->id_number)->ino_state == DFOUND)
435 inoinfo(dirp->d_ino)->ino_state = DFOUND;
439 inp = getinoinfo(dirp->d_ino);
440 if (inp->i_parent != 0 && idesc->id_entryno > 2) {
441 getpathname(pathbuf, idesc->id_number,
443 getpathname(namebuf, dirp->d_ino, dirp->d_ino);
444 pwarn("%s%s%s %s %s\n", pathbuf,
445 (strcmp(pathbuf, "/") == 0 ? "" : "/"),
447 "IS AN EXTRANEOUS HARD LINK TO DIRECTORY",
450 printf(" (REMOVED)\n");
454 if ((n = reply("REMOVE")) == 1)
457 if (idesc->id_entryno > 2)
458 inp->i_parent = idesc->id_number;
463 dirp->d_type != inoinfo(dirp->d_ino)->ino_type) {
464 fileerror(idesc->id_number, dirp->d_ino,
466 dirp->d_type = inoinfo(dirp->d_ino)->ino_type;
467 if (reply("FIX") == 1)
470 inoinfo(dirp->d_ino)->ino_linkcnt--;
474 errx(EEXIT, "BAD STATE %d FOR INODE I=%d",
475 inoinfo(dirp->d_ino)->ino_state, dirp->d_ino);
481 return (ret|KEEPON|ALTERED);
485 * Routine to sort disk blocks.
488 blksort(const void *arg1, const void *arg2)
491 return ((*(struct inoinfo **)arg1)->i_blks[0] -
492 (*(struct inoinfo **)arg2)->i_blks[0]);