2 * Copyright (c) 1980, 1986, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 static const char sccsid[] = "@(#)pass2.c 8.9 (Berkeley) 4/28/95";
38 static const char rcsid[] =
42 #include <sys/param.h>
44 #include <ufs/ufs/dinode.h>
45 #include <ufs/ufs/dir.h>
46 #include <ufs/ffs/fs.h>
53 #define MINDIRSIZE (sizeof (struct dirtemplate))
55 static int blksort(const void *, const void *);
56 static int pass2check(struct inodesc *);
62 struct inoinfo **inpp, *inp;
63 struct inoinfo **inpend;
64 struct inodesc curino;
66 char pathbuf[MAXPATHLEN + 1];
68 switch (inoinfo(ROOTINO)->ino_state) {
71 pfatal("ROOT INODE UNALLOCATED");
72 if (reply("ALLOCATE") == 0) {
76 if (allocdir(ROOTINO, ROOTINO, 0755) != ROOTINO)
77 errx(EEXIT, "CANNOT ALLOCATE ROOT INODE");
81 pfatal("DUPS/BAD IN ROOT INODE");
82 if (reply("REALLOCATE")) {
84 if (allocdir(ROOTINO, ROOTINO, 0755) != ROOTINO)
85 errx(EEXIT, "CANNOT ALLOCATE ROOT INODE");
88 if (reply("CONTINUE") == 0) {
96 pfatal("ROOT INODE NOT DIRECTORY");
97 if (reply("REALLOCATE")) {
99 if (allocdir(ROOTINO, ROOTINO, 0755) != ROOTINO)
100 errx(EEXIT, "CANNOT ALLOCATE ROOT INODE");
103 if (reply("FIX") == 0) {
107 dp = ginode(ROOTINO);
108 dp->di_mode &= ~IFMT;
109 dp->di_mode |= IFDIR;
117 errx(EEXIT, "BAD STATE %d FOR ROOT INODE",
118 inoinfo(ROOTINO)->ino_state);
120 inoinfo(ROOTINO)->ino_state = DFOUND;
121 inoinfo(WINO)->ino_state = FSTATE;
122 inoinfo(WINO)->ino_type = DT_WHT;
124 * Sort the directory list into disk block order.
126 qsort((char *)inpsort, (size_t)inplast, sizeof *inpsort, blksort);
128 * Check the integrity of each directory.
130 memset(&curino, 0, sizeof(struct inodesc));
131 curino.id_type = DATA;
132 curino.id_func = pass2check;
134 inpend = &inpsort[inplast];
135 for (inpp = inpsort; inpp < inpend; inpp++) {
137 printf("%s: phase 2: dir %d of %d (%d%%)\n", cdevname,
138 inpp - inpsort, (int)inplast,
139 (int)((inpp - inpsort) * 100 / inplast));
143 if (inp->i_isize == 0)
145 if (inp->i_isize < MINDIRSIZE) {
146 direrror(inp->i_number, "DIRECTORY TOO SHORT");
147 inp->i_isize = roundup(MINDIRSIZE, DIRBLKSIZ);
148 if (reply("FIX") == 1) {
149 dp = ginode(inp->i_number);
150 dp->di_size = inp->i_isize;
154 } else if ((inp->i_isize & (DIRBLKSIZ - 1)) != 0) {
155 getpathname(pathbuf, inp->i_number, inp->i_number);
157 pfatal("%s %s: LENGTH %d NOT MULTIPLE OF %d",
158 "DIRECTORY", pathbuf, inp->i_isize,
161 pwarn("%s %s: LENGTH %d NOT MULTIPLE OF %d",
162 "DIRECTORY", pathbuf, inp->i_isize,
165 printf(" (ADJUSTED)\n");
166 inp->i_isize = roundup(inp->i_isize, DIRBLKSIZ);
167 if (preen || reply("ADJUST") == 1) {
168 dp = ginode(inp->i_number);
169 dp->di_size = roundup(inp->i_isize, DIRBLKSIZ);
174 memset(&dino, 0, sizeof(struct dinode));
175 dino.di_mode = IFDIR;
176 dp->di_size = inp->i_isize;
177 memmove(&dp->di_db[0], &inp->i_blks[0], (size_t)inp->i_numblks);
178 curino.id_number = inp->i_number;
179 curino.id_parent = inp->i_parent;
180 (void)ckinode(dp, &curino);
183 * Now that the parents of all directories have been found,
184 * make another pass to verify the value of `..'
186 for (inpp = inpsort; inpp < inpend; inpp++) {
188 if (inp->i_parent == 0 || inp->i_isize == 0)
190 if (inoinfo(inp->i_parent)->ino_state == DFOUND &&
191 inoinfo(inp->i_number)->ino_state == DSTATE)
192 inoinfo(inp->i_number)->ino_state = DFOUND;
193 if (inp->i_dotdot == inp->i_parent ||
194 inp->i_dotdot == (ino_t)-1)
196 if (inp->i_dotdot == 0) {
197 inp->i_dotdot = inp->i_parent;
198 fileerror(inp->i_parent, inp->i_number, "MISSING '..'");
199 if (reply("FIX") == 0)
201 (void)makeentry(inp->i_number, inp->i_parent, "..");
202 inoinfo(inp->i_parent)->ino_linkcnt--;
205 fileerror(inp->i_parent, inp->i_number,
206 "BAD INODE NUMBER FOR '..'");
207 if (reply("FIX") == 0)
209 inoinfo(inp->i_dotdot)->ino_linkcnt++;
210 inoinfo(inp->i_parent)->ino_linkcnt--;
211 inp->i_dotdot = inp->i_parent;
212 (void)changeino(inp->i_number, "..", inp->i_parent);
215 * Mark all the directories that can be found from the root.
221 pass2check(struct inodesc *idesc)
223 struct direct *dirp = idesc->id_dirp;
225 int n, entrysize, ret = 0;
229 char namebuf[MAXPATHLEN + 1];
230 char pathbuf[MAXPATHLEN + 1];
235 if (idesc->id_entryno != 0)
237 if (dirp->d_ino != 0 && strcmp(dirp->d_name, ".") == 0) {
238 if (dirp->d_ino != idesc->id_number) {
239 direrror(idesc->id_number, "BAD INODE NUMBER FOR '.'");
240 dirp->d_ino = idesc->id_number;
241 if (reply("FIX") == 1)
244 if (dirp->d_type != DT_DIR) {
245 direrror(idesc->id_number, "BAD TYPE VALUE FOR '.'");
246 dirp->d_type = DT_DIR;
247 if (reply("FIX") == 1)
252 direrror(idesc->id_number, "MISSING '.'");
253 proto.d_ino = idesc->id_number;
254 proto.d_type = DT_DIR;
256 (void)strcpy(proto.d_name, ".");
257 entrysize = DIRSIZ(0, &proto);
258 if (dirp->d_ino != 0 && strcmp(dirp->d_name, "..") != 0) {
259 pfatal("CANNOT FIX, FIRST ENTRY IN DIRECTORY CONTAINS %s\n",
261 } else if (dirp->d_reclen < entrysize) {
262 pfatal("CANNOT FIX, INSUFFICIENT SPACE TO ADD '.'\n");
263 } else if (dirp->d_reclen < 2 * entrysize) {
264 proto.d_reclen = dirp->d_reclen;
265 memmove(dirp, &proto, (size_t)entrysize);
266 if (reply("FIX") == 1)
269 n = dirp->d_reclen - entrysize;
270 proto.d_reclen = entrysize;
271 memmove(dirp, &proto, (size_t)entrysize);
273 inoinfo(dirp->d_ino)->ino_linkcnt--;
274 dirp = (struct direct *)((char *)(dirp) + entrysize);
275 memset(dirp, 0, (size_t)n);
277 if (reply("FIX") == 1)
281 if (idesc->id_entryno > 1)
283 inp = getinoinfo(idesc->id_number);
284 proto.d_ino = inp->i_parent;
285 proto.d_type = DT_DIR;
287 (void)strcpy(proto.d_name, "..");
288 entrysize = DIRSIZ(0, &proto);
289 if (idesc->id_entryno == 0) {
291 if (dirp->d_reclen < n + entrysize)
293 proto.d_reclen = dirp->d_reclen - n;
296 inoinfo(dirp->d_ino)->ino_linkcnt--;
297 dirp = (struct direct *)((char *)(dirp) + n);
298 memset(dirp, 0, (size_t)proto.d_reclen);
299 dirp->d_reclen = proto.d_reclen;
301 if (dirp->d_ino != 0 && strcmp(dirp->d_name, "..") == 0) {
302 inp->i_dotdot = dirp->d_ino;
303 if (dirp->d_type != DT_DIR) {
304 direrror(idesc->id_number, "BAD TYPE VALUE FOR '..'");
305 dirp->d_type = DT_DIR;
306 if (reply("FIX") == 1)
311 if (dirp->d_ino != 0 && strcmp(dirp->d_name, ".") != 0) {
312 fileerror(inp->i_parent, idesc->id_number, "MISSING '..'");
313 pfatal("CANNOT FIX, SECOND ENTRY IN DIRECTORY CONTAINS %s\n",
315 inp->i_dotdot = (ino_t)-1;
316 } else if (dirp->d_reclen < entrysize) {
317 fileerror(inp->i_parent, idesc->id_number, "MISSING '..'");
318 pfatal("CANNOT FIX, INSUFFICIENT SPACE TO ADD '..'\n");
319 inp->i_dotdot = (ino_t)-1;
320 } else if (inp->i_parent != 0) {
322 * We know the parent, so fix now.
324 inp->i_dotdot = inp->i_parent;
325 fileerror(inp->i_parent, idesc->id_number, "MISSING '..'");
326 proto.d_reclen = dirp->d_reclen;
327 memmove(dirp, &proto, (size_t)entrysize);
328 if (reply("FIX") == 1)
332 if (dirp->d_ino != 0)
333 inoinfo(dirp->d_ino)->ino_linkcnt--;
336 if (dirp->d_ino == 0)
338 if (dirp->d_namlen <= 2 &&
339 dirp->d_name[0] == '.' &&
340 idesc->id_entryno >= 2) {
341 if (dirp->d_namlen == 1) {
342 direrror(idesc->id_number, "EXTRA '.' ENTRY");
344 if (reply("FIX") == 1)
346 return (KEEPON | ret);
348 if (dirp->d_name[1] == '.') {
349 direrror(idesc->id_number, "EXTRA '..' ENTRY");
351 if (reply("FIX") == 1)
353 return (KEEPON | ret);
358 if (dirp->d_ino > maxino) {
359 fileerror(idesc->id_number, dirp->d_ino, "I OUT OF RANGE");
361 } else if (((dirp->d_ino == WINO && dirp->d_type != DT_WHT) ||
362 (dirp->d_ino != WINO && dirp->d_type == DT_WHT))) {
363 fileerror(idesc->id_number, dirp->d_ino, "BAD WHITEOUT ENTRY");
365 dirp->d_type = DT_WHT;
366 if (reply("FIX") == 1)
370 switch (inoinfo(dirp->d_ino)->ino_state) {
372 if (idesc->id_entryno <= 2)
374 fileerror(idesc->id_number, dirp->d_ino, "UNALLOCATED");
380 if (idesc->id_entryno <= 2)
382 if (inoinfo(dirp->d_ino)->ino_state == FCLEAR)
384 else if (!preen && !usedsoftdep)
385 errmsg = "ZERO LENGTH DIRECTORY";
390 fileerror(idesc->id_number, dirp->d_ino, errmsg);
391 if ((n = reply("REMOVE")) == 1)
393 dp = ginode(dirp->d_ino);
394 inoinfo(dirp->d_ino)->ino_state =
395 (dp->di_mode & IFMT) == IFDIR ? DSTATE : FSTATE;
396 inoinfo(dirp->d_ino)->ino_linkcnt = dp->di_nlink;
400 if (inoinfo(idesc->id_number)->ino_state == DFOUND)
401 inoinfo(dirp->d_ino)->ino_state = DFOUND;
405 inp = getinoinfo(dirp->d_ino);
406 if (inp->i_parent != 0 && idesc->id_entryno > 2) {
407 getpathname(pathbuf, idesc->id_number,
409 getpathname(namebuf, dirp->d_ino, dirp->d_ino);
410 pwarn("%s%s%s %s %s\n", pathbuf,
411 (strcmp(pathbuf, "/") == 0 ? "" : "/"),
413 "IS AN EXTRANEOUS HARD LINK TO DIRECTORY",
415 if (cursnapshot != 0)
418 printf(" (REMOVED)\n");
422 if ((n = reply("REMOVE")) == 1)
425 if (idesc->id_entryno > 2)
426 inp->i_parent = idesc->id_number;
430 if (dirp->d_type != inoinfo(dirp->d_ino)->ino_type) {
431 fileerror(idesc->id_number, dirp->d_ino,
433 dirp->d_type = inoinfo(dirp->d_ino)->ino_type;
434 if (reply("FIX") == 1)
437 inoinfo(dirp->d_ino)->ino_linkcnt--;
441 errx(EEXIT, "BAD STATE %d FOR INODE I=%d",
442 inoinfo(dirp->d_ino)->ino_state, dirp->d_ino);
448 return (ret|KEEPON|ALTERED);
452 * Routine to sort disk blocks.
455 blksort(const void *arg1, const void *arg2)
458 return ((*(struct inoinfo **)arg1)->i_blks[0] -
459 (*(struct inoinfo **)arg2)->i_blks[0]);