]> git.ipfire.org Git - thirdparty/e2fsprogs.git/blob - e2fsck/pass2.c
projects / thirdparty / e2fsprogs.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge branch 'maint' into next
[thirdparty/e2fsprogs.git] / e2fsck / pass2.c
1 /*
2 * pass2.c --- check directory structure
3 *
4 * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o
5 *
6 * %Begin-Header%
7 * This file may be redistributed under the terms of the GNU Public
8 * License.
9 * %End-Header%
10 *
11 * Pass 2 of e2fsck iterates through all active directory inodes, and
12 * applies to following tests to each directory entry in the directory
13 * blocks in the inodes:
14 *
15 * - The length of the directory entry (rec_len) should be at
16 * least 8 bytes, and no more than the remaining space
17 * left in the directory block.
18 * - The length of the name in the directory entry (name_len)
19 * should be less than (rec_len - 8).
20 * - The inode number in the directory entry should be within
21 * legal bounds.
22 * - The inode number should refer to a in-use inode.
23 * - The first entry should be '.', and its inode should be
24 * the inode of the directory.
25 * - The second entry should be '..'.
26 *
27 * To minimize disk seek time, the directory blocks are processed in
28 * sorted order of block numbers.
29 *
30 * Pass 2 also collects the following information:
31 * - The inode numbers of the subdirectories for each directory.
32 *
33 * Pass 2 relies on the following information from previous passes:
34 * - The directory information collected in pass 1.
35 * - The inode_used_map bitmap
36 * - The inode_bad_map bitmap
37 * - The inode_dir_map bitmap
38 *
39 * Pass 2 frees the following data structures
40 * - The inode_bad_map bitmap
41 * - The inode_reg_map bitmap
42 */
43
44 #define _GNU_SOURCE 1 /* get strnlen() */
45 #include "config.h"
46 #include <string.h>
47
48 #include "e2fsck.h"
49 #include "problem.h"
50 #include "dict.h"
51
52 #ifdef NO_INLINE_FUNCS
53 #define _INLINE_
54 #else
55 #define _INLINE_ inline
56 #endif
57
58 /* #define DX_DEBUG */
59
60 /*
61 * Keeps track of how many times an inode is referenced.
62 */
63 static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf);
64 static int check_dir_block(ext2_filsys fs,
65 struct ext2_db_entry2 *dir_blocks_info,
66 void *priv_data);
67 static int allocate_dir_block(e2fsck_t ctx,
68 struct ext2_db_entry2 *dir_blocks_info,
69 char *buf, struct problem_context *pctx);
70 static void clear_htree(e2fsck_t ctx, ext2_ino_t ino);
71 static int htree_depth(struct dx_dir_info *dx_dir,
72 struct dx_dirblock_info *dx_db);
73 static EXT2_QSORT_TYPE special_dir_block_cmp(const void *a, const void *b);
74
75 struct check_dir_struct {
76 char *buf;
77 struct problem_context pctx;
78 int count, max;
79 e2fsck_t ctx;
80 };
81
82 void e2fsck_pass2(e2fsck_t ctx)
83 {
84 struct ext2_super_block *sb = ctx->fs->super;
85 struct problem_context pctx;
86 ext2_filsys fs = ctx->fs;
87 char *buf;
88 #ifdef RESOURCE_TRACK
89 struct resource_track rtrack;
90 #endif
91 struct check_dir_struct cd;
92 struct dx_dir_info *dx_dir;
93 struct dx_dirblock_info *dx_db, *dx_parent;
94 unsigned int save_type;
95 int b;
96 int i, depth;
97 problem_t code;
98 int bad_dir;
99
100 init_resource_track(&rtrack, ctx->fs->io);
101 clear_problem_context(&cd.pctx);
102
103 #ifdef MTRACE
104 mtrace_print("Pass 2");
105 #endif
106
107 if (!(ctx->options & E2F_OPT_PREEN))
108 fix_problem(ctx, PR_2_PASS_HEADER, &cd.pctx);
109
110 e2fsck_setup_tdb_icount(ctx, EXT2_ICOUNT_OPT_INCREMENT,
111 &ctx->inode_count);
112 if (ctx->inode_count)
113 cd.pctx.errcode = 0;
114 else {
115 e2fsck_set_bitmap_type(fs, EXT2FS_BMAP64_RBTREE,
116 "inode_count", &save_type);
117 cd.pctx.errcode = ext2fs_create_icount2(fs,
118 EXT2_ICOUNT_OPT_INCREMENT,
119 0, ctx->inode_link_info,
120 &ctx->inode_count);
121 fs->default_bitmap_type = save_type;
122 }
123 if (cd.pctx.errcode) {
124 fix_problem(ctx, PR_2_ALLOCATE_ICOUNT, &cd.pctx);
125 ctx->flags |= E2F_FLAG_ABORT;
126 return;
127 }
128 buf = (char *) e2fsck_allocate_memory(ctx, 2*fs->blocksize,
129 "directory scan buffer");
130
131 /*
132 * Set up the parent pointer for the root directory, if
133 * present. (If the root directory is not present, we will
134 * create it in pass 3.)
135 */
136 (void) e2fsck_dir_info_set_parent(ctx, EXT2_ROOT_INO, EXT2_ROOT_INO);
137
138 cd.buf = buf;
139 cd.ctx = ctx;
140 cd.count = 1;
141 cd.max = ext2fs_dblist_count2(fs->dblist);
142
143 if (ctx->progress)
144 (void) (ctx->progress)(ctx, 2, 0, cd.max);
145
146 if (fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX)
147 ext2fs_dblist_sort2(fs->dblist, special_dir_block_cmp);
148
149 cd.pctx.errcode = ext2fs_dblist_iterate2(fs->dblist, check_dir_block,
150 &cd);
151 if (ctx->flags & E2F_FLAG_SIGNAL_MASK || ctx->flags & E2F_FLAG_RESTART)
152 return;
153
154 if (ctx->flags & E2F_FLAG_RESTART_LATER) {
155 ctx->flags |= E2F_FLAG_RESTART;
156 return;
157 }
158
159 if (cd.pctx.errcode) {
160 fix_problem(ctx, PR_2_DBLIST_ITERATE, &cd.pctx);
161 ctx->flags |= E2F_FLAG_ABORT;
162 return;
163 }
164
165 #ifdef ENABLE_HTREE
166 for (i=0; (dx_dir = e2fsck_dx_dir_info_iter(ctx, &i)) != 0;) {
167 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
168 return;
169 if (e2fsck_dir_will_be_rehashed(ctx, dx_dir->ino) ||
170 dx_dir->numblocks == 0)
171 continue;
172 clear_problem_context(&pctx);
173 bad_dir = 0;
174 pctx.dir = dx_dir->ino;
175 dx_db = dx_dir->dx_block;
176 if (dx_db->flags & DX_FLAG_REFERENCED)
177 dx_db->flags |= DX_FLAG_DUP_REF;
178 else
179 dx_db->flags |= DX_FLAG_REFERENCED;
180 /*
181 * Find all of the first and last leaf blocks, and
182 * update their parent's min and max hash values
183 */
184 for (b=0, dx_db = dx_dir->dx_block;
185 b < dx_dir->numblocks;
186 b++, dx_db++) {
187 if ((dx_db->type != DX_DIRBLOCK_LEAF) ||
188 !(dx_db->flags & (DX_FLAG_FIRST | DX_FLAG_LAST)))
189 continue;
190 dx_parent = &dx_dir->dx_block[dx_db->parent];
191 /*
192 * XXX Make sure dx_parent->min_hash > dx_db->min_hash
193 */
194 if (dx_db->flags & DX_FLAG_FIRST)
195 dx_parent->min_hash = dx_db->min_hash;
196 /*
197 * XXX Make sure dx_parent->max_hash < dx_db->max_hash
198 */
199 if (dx_db->flags & DX_FLAG_LAST)
200 dx_parent->max_hash = dx_db->max_hash;
201 }
202
203 for (b=0, dx_db = dx_dir->dx_block;
204 b < dx_dir->numblocks;
205 b++, dx_db++) {
206 pctx.blkcount = b;
207 pctx.group = dx_db->parent;
208 code = 0;
209 if (!(dx_db->flags & DX_FLAG_FIRST) &&
210 (dx_db->min_hash < dx_db->node_min_hash)) {
211 pctx.blk = dx_db->min_hash;
212 pctx.blk2 = dx_db->node_min_hash;
213 code = PR_2_HTREE_MIN_HASH;
214 fix_problem(ctx, code, &pctx);
215 bad_dir++;
216 }
217 if (dx_db->type == DX_DIRBLOCK_LEAF) {
218 depth = htree_depth(dx_dir, dx_db);
219 if (depth != dx_dir->depth) {
220 pctx.num = dx_dir->depth;
221 code = PR_2_HTREE_BAD_DEPTH;
222 fix_problem(ctx, code, &pctx);
223 bad_dir++;
224 }
225 }
226 /*
227 * This test doesn't apply for the root block
228 * at block #0
229 */
230 if (b &&
231 (dx_db->max_hash > dx_db->node_max_hash)) {
232 pctx.blk = dx_db->max_hash;
233 pctx.blk2 = dx_db->node_max_hash;
234 code = PR_2_HTREE_MAX_HASH;
235 fix_problem(ctx, code, &pctx);
236 bad_dir++;
237 }
238 if (!(dx_db->flags & DX_FLAG_REFERENCED)) {
239 code = PR_2_HTREE_NOTREF;
240 fix_problem(ctx, code, &pctx);
241 bad_dir++;
242 } else if (dx_db->flags & DX_FLAG_DUP_REF) {
243 code = PR_2_HTREE_DUPREF;
244 fix_problem(ctx, code, &pctx);
245 bad_dir++;
246 }
247 }
248 if (bad_dir && fix_problem(ctx, PR_2_HTREE_CLEAR, &pctx)) {
249 clear_htree(ctx, dx_dir->ino);
250 dx_dir->numblocks = 0;
251 }
252 }
253 e2fsck_free_dx_dir_info(ctx);
254 #endif
255 ext2fs_free_mem(&buf);
256 ext2fs_free_dblist(fs->dblist);
257
258 if (ctx->inode_bad_map) {
259 ext2fs_free_inode_bitmap(ctx->inode_bad_map);
260 ctx->inode_bad_map = 0;
261 }
262 if (ctx->inode_reg_map) {
263 ext2fs_free_inode_bitmap(ctx->inode_reg_map);
264 ctx->inode_reg_map = 0;
265 }
266
267 clear_problem_context(&pctx);
268 if (ctx->large_files) {
269 if (!(sb->s_feature_ro_compat &
270 EXT2_FEATURE_RO_COMPAT_LARGE_FILE) &&
271 fix_problem(ctx, PR_2_FEATURE_LARGE_FILES, &pctx)) {
272 sb->s_feature_ro_compat |=
273 EXT2_FEATURE_RO_COMPAT_LARGE_FILE;
274 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
275 ext2fs_mark_super_dirty(fs);
276 }
277 if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
278 fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) {
279 ext2fs_update_dynamic_rev(fs);
280 ext2fs_mark_super_dirty(fs);
281 }
282 }
283
284 print_resource_track(ctx, _("Pass 2"), &rtrack, fs->io);
285 }
286
287 #define MAX_DEPTH 32000
288 static int htree_depth(struct dx_dir_info *dx_dir,
289 struct dx_dirblock_info *dx_db)
290 {
291 int depth = 0;
292
293 while (dx_db->type != DX_DIRBLOCK_ROOT && depth < MAX_DEPTH) {
294 dx_db = &dx_dir->dx_block[dx_db->parent];
295 depth++;
296 }
297 return depth;
298 }
299
300 static int dict_de_cmp(const void *a, const void *b)
301 {
302 const struct ext2_dir_entry *de_a, *de_b;
303 int a_len, b_len;
304
305 de_a = (const struct ext2_dir_entry *) a;
306 a_len = ext2fs_dirent_name_len(de_a);
307 de_b = (const struct ext2_dir_entry *) b;
308 b_len = ext2fs_dirent_name_len(de_b);
309
310 if (a_len != b_len)
311 return (a_len - b_len);
312
313 return strncmp(de_a->name, de_b->name, a_len);
314 }
315
316 /*
317 * This is special sort function that makes sure that directory blocks
318 * with a dirblock of zero are sorted to the beginning of the list.
319 * This guarantees that the root node of the htree directories are
320 * processed first, so we know what hash version to use.
321 */
322 static EXT2_QSORT_TYPE special_dir_block_cmp(const void *a, const void *b)
323 {
324 const struct ext2_db_entry2 *db_a =
325 (const struct ext2_db_entry2 *) a;
326 const struct ext2_db_entry2 *db_b =
327 (const struct ext2_db_entry2 *) b;
328
329 if (db_a->blockcnt && !db_b->blockcnt)
330 return 1;
331
332 if (!db_a->blockcnt && db_b->blockcnt)
333 return -1;
334
335 if (db_a->blk != db_b->blk)
336 return (int) (db_a->blk - db_b->blk);
337
338 if (db_a->ino != db_b->ino)
339 return (int) (db_a->ino - db_b->ino);
340
341 return (int) (db_a->blockcnt - db_b->blockcnt);
342 }
343
344
345 /*
346 * Make sure the first entry in the directory is '.', and that the
347 * directory entry is sane.
348 */
349 static int check_dot(e2fsck_t ctx,
350 struct ext2_dir_entry *dirent,
351 ext2_ino_t ino, struct problem_context *pctx)
352 {
353 struct ext2_dir_entry *nextdir;
354 unsigned int rec_len, new_len;
355 int status = 0;
356 int created = 0;
357 problem_t problem = 0;
358
359 if (!dirent->inode)
360 problem = PR_2_MISSING_DOT;
361 else if ((ext2fs_dirent_name_len(dirent) != 1) ||
362 (dirent->name[0] != '.'))
363 problem = PR_2_1ST_NOT_DOT;
364 else if (dirent->name[1] != '\0')
365 problem = PR_2_DOT_NULL_TERM;
366
367 (void) ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
368 if (problem) {
369 if (fix_problem(ctx, problem, pctx)) {
370 if (rec_len < 12)
371 rec_len = dirent->rec_len = 12;
372 dirent->inode = ino;
373 ext2fs_dirent_set_name_len(dirent, 1);
374 ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN);
375 dirent->name[0] = '.';
376 dirent->name[1] = '\0';
377 status = 1;
378 created = 1;
379 }
380 }
381 if (dirent->inode != ino) {
382 if (fix_problem(ctx, PR_2_BAD_INODE_DOT, pctx)) {
383 dirent->inode = ino;
384 status = 1;
385 }
386 }
387 if (rec_len > 12) {
388 new_len = rec_len - 12;
389 if (new_len > 12) {
390 if (created ||
391 fix_problem(ctx, PR_2_SPLIT_DOT, pctx)) {
392 nextdir = (struct ext2_dir_entry *)
393 ((char *) dirent + 12);
394 dirent->rec_len = 12;
395 (void) ext2fs_set_rec_len(ctx->fs, new_len,
396 nextdir);
397 nextdir->inode = 0;
398 ext2fs_dirent_set_name_len(nextdir, 0);
399 ext2fs_dirent_set_file_type(nextdir,
400 EXT2_FT_UNKNOWN);
401 status = 1;
402 }
403 }
404 }
405 return status;
406 }
407
408 /*
409 * Make sure the second entry in the directory is '..', and that the
410 * directory entry is sane. We do not check the inode number of '..'
411 * here; this gets done in pass 3.
412 */
413 static int check_dotdot(e2fsck_t ctx,
414 struct ext2_dir_entry *dirent,
415 ext2_ino_t ino, struct problem_context *pctx)
416 {
417 problem_t problem = 0;
418 unsigned int rec_len;
419
420 if (!dirent->inode)
421 problem = PR_2_MISSING_DOT_DOT;
422 else if ((ext2fs_dirent_name_len(dirent) != 2) ||
423 (dirent->name[0] != '.') ||
424 (dirent->name[1] != '.'))
425 problem = PR_2_2ND_NOT_DOT_DOT;
426 else if (dirent->name[2] != '\0')
427 problem = PR_2_DOT_DOT_NULL_TERM;
428
429 (void) ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
430 if (problem) {
431 if (fix_problem(ctx, problem, pctx)) {
432 if (rec_len < 12)
433 dirent->rec_len = 12;
434 /*
435 * Note: we don't have the parent inode just
436 * yet, so we will fill it in with the root
437 * inode. This will get fixed in pass 3.
438 */
439 dirent->inode = EXT2_ROOT_INO;
440 ext2fs_dirent_set_name_len(dirent, 2);
441 ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN);
442 dirent->name[0] = '.';
443 dirent->name[1] = '.';
444 dirent->name[2] = '\0';
445 return 1;
446 }
447 return 0;
448 }
449 if (e2fsck_dir_info_set_dotdot(ctx, ino, dirent->inode)) {
450 fix_problem(ctx, PR_2_NO_DIRINFO, pctx);
451 return -1;
452 }
453 return 0;
454 }
455
456 /*
457 * Check to make sure a directory entry doesn't contain any illegal
458 * characters.
459 */
460 static int check_name(e2fsck_t ctx,
461 struct ext2_dir_entry *dirent,
462 ext2_ino_t dir_ino EXT2FS_ATTR((unused)),
463 struct problem_context *pctx)
464 {
465 int i;
466 int fixup = -1;
467 int ret = 0;
468
469 for ( i = 0; i < ext2fs_dirent_name_len(dirent); i++) {
470 if (dirent->name[i] == '/' || dirent->name[i] == '\0') {
471 if (fixup < 0) {
472 fixup = fix_problem(ctx, PR_2_BAD_NAME, pctx);
473 }
474 if (fixup) {
475 dirent->name[i] = '.';
476 ret = 1;
477 }
478 }
479 }
480 return ret;
481 }
482
483 /*
484 * Check the directory filetype (if present)
485 */
486 static _INLINE_ int check_filetype(e2fsck_t ctx,
487 struct ext2_dir_entry *dirent,
488 ext2_ino_t dir_ino EXT2FS_ATTR((unused)),
489 struct problem_context *pctx)
490 {
491 int filetype = ext2fs_dirent_file_type(dirent);
492 int should_be = EXT2_FT_UNKNOWN;
493 struct ext2_inode inode;
494
495 if (!(ctx->fs->super->s_feature_incompat &
496 EXT2_FEATURE_INCOMPAT_FILETYPE)) {
497 if (filetype == 0 ||
498 !fix_problem(ctx, PR_2_CLEAR_FILETYPE, pctx))
499 return 0;
500 ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN);
501 return 1;
502 }
503
504 if (ext2fs_test_inode_bitmap2(ctx->inode_dir_map, dirent->inode)) {
505 should_be = EXT2_FT_DIR;
506 } else if (ext2fs_test_inode_bitmap2(ctx->inode_reg_map,
507 dirent->inode)) {
508 should_be = EXT2_FT_REG_FILE;
509 } else if (ctx->inode_bad_map &&
510 ext2fs_test_inode_bitmap2(ctx->inode_bad_map,
511 dirent->inode))
512 should_be = 0;
513 else {
514 e2fsck_read_inode(ctx, dirent->inode, &inode,
515 "check_filetype");
516 should_be = ext2_file_type(inode.i_mode);
517 }
518 if (filetype == should_be)
519 return 0;
520 pctx->num = should_be;
521
522 if (fix_problem(ctx, filetype ? PR_2_BAD_FILETYPE : PR_2_SET_FILETYPE,
523 pctx) == 0)
524 return 0;
525
526 ext2fs_dirent_set_file_type(dirent, should_be);
527 return 1;
528 }
529
530 #ifdef ENABLE_HTREE
531 static void parse_int_node(ext2_filsys fs,
532 struct ext2_db_entry2 *db,
533 struct check_dir_struct *cd,
534 struct dx_dir_info *dx_dir,
535 char *block_buf, int failed_csum)
536 {
537 struct ext2_dx_root_info *root;
538 struct ext2_dx_entry *ent;
539 struct ext2_dx_countlimit *limit;
540 struct dx_dirblock_info *dx_db;
541 int i, expect_limit, count;
542 blk_t blk;
543 ext2_dirhash_t min_hash = 0xffffffff;
544 ext2_dirhash_t max_hash = 0;
545 ext2_dirhash_t hash = 0, prev_hash;
546 int csum_size = 0;
547
548 if (db->blockcnt == 0) {
549 root = (struct ext2_dx_root_info *) (block_buf + 24);
550
551 #ifdef DX_DEBUG
552 printf("Root node dump:\n");
553 printf("\t Reserved zero: %u\n", root->reserved_zero);
554 printf("\t Hash Version: %d\n", root->hash_version);
555 printf("\t Info length: %d\n", root->info_length);
556 printf("\t Indirect levels: %d\n", root->indirect_levels);
557 printf("\t Flags: %d\n", root->unused_flags);
558 #endif
559
560 ent = (struct ext2_dx_entry *) (block_buf + 24 + root->info_length);
561
562 if (failed_csum &&
563 (e2fsck_dir_will_be_rehashed(cd->ctx, cd->pctx.ino) ||
564 fix_problem(cd->ctx, PR_2_HTREE_ROOT_CSUM_INVALID,
565 &cd->pctx)))
566 goto clear_and_exit;
567 } else {
568 ent = (struct ext2_dx_entry *) (block_buf+8);
569
570 if (failed_csum &&
571 (e2fsck_dir_will_be_rehashed(cd->ctx, cd->pctx.ino) ||
572 fix_problem(cd->ctx, PR_2_HTREE_NODE_CSUM_INVALID,
573 &cd->pctx)))
574 goto clear_and_exit;
575 }
576
577 limit = (struct ext2_dx_countlimit *) ent;
578
579 #ifdef DX_DEBUG
580 printf("Number of entries (count): %d\n",
581 ext2fs_le16_to_cpu(limit->count));
582 printf("Number of entries (limit): %d\n",
583 ext2fs_le16_to_cpu(limit->limit));
584 #endif
585
586 count = ext2fs_le16_to_cpu(limit->count);
587 if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
588 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
589 csum_size = sizeof(struct ext2_dx_tail);
590 expect_limit = (fs->blocksize -
591 (csum_size + ((char *) ent - block_buf))) /
592 sizeof(struct ext2_dx_entry);
593 if (ext2fs_le16_to_cpu(limit->limit) != expect_limit) {
594 cd->pctx.num = ext2fs_le16_to_cpu(limit->limit);
595 if (fix_problem(cd->ctx, PR_2_HTREE_BAD_LIMIT, &cd->pctx))
596 goto clear_and_exit;
597 }
598 if (count > expect_limit) {
599 cd->pctx.num = count;
600 if (fix_problem(cd->ctx, PR_2_HTREE_BAD_COUNT, &cd->pctx))
601 goto clear_and_exit;
602 count = expect_limit;
603 }
604
605 for (i=0; i < count; i++) {
606 prev_hash = hash;
607 hash = i ? (ext2fs_le32_to_cpu(ent[i].hash) & ~1) : 0;
608 #ifdef DX_DEBUG
609 printf("Entry #%d: Hash 0x%08x, block %u\n", i,
610 hash, ext2fs_le32_to_cpu(ent[i].block));
611 #endif
612 blk = ext2fs_le32_to_cpu(ent[i].block) & 0x0ffffff;
613 /* Check to make sure the block is valid */
614 if (blk >= (blk_t) dx_dir->numblocks) {
615 cd->pctx.blk = blk;
616 if (fix_problem(cd->ctx, PR_2_HTREE_BADBLK,
617 &cd->pctx))
618 goto clear_and_exit;
619 continue;
620 }
621 if (hash < prev_hash &&
622 fix_problem(cd->ctx, PR_2_HTREE_HASH_ORDER, &cd->pctx))
623 goto clear_and_exit;
624 dx_db = &dx_dir->dx_block[blk];
625 if (dx_db->flags & DX_FLAG_REFERENCED) {
626 dx_db->flags |= DX_FLAG_DUP_REF;
627 } else {
628 dx_db->flags |= DX_FLAG_REFERENCED;
629 dx_db->parent = db->blockcnt;
630 }
631 if (hash < min_hash)
632 min_hash = hash;
633 if (hash > max_hash)
634 max_hash = hash;
635 dx_db->node_min_hash = hash;
636 if ((i+1) < count)
637 dx_db->node_max_hash =
638 ext2fs_le32_to_cpu(ent[i+1].hash) & ~1;
639 else {
640 dx_db->node_max_hash = 0xfffffffe;
641 dx_db->flags |= DX_FLAG_LAST;
642 }
643 if (i == 0)
644 dx_db->flags |= DX_FLAG_FIRST;
645 }
646 #ifdef DX_DEBUG
647 printf("Blockcnt = %d, min hash 0x%08x, max hash 0x%08x\n",
648 db->blockcnt, min_hash, max_hash);
649 #endif
650 dx_db = &dx_dir->dx_block[db->blockcnt];
651 dx_db->min_hash = min_hash;
652 dx_db->max_hash = max_hash;
653 return;
654
655 clear_and_exit:
656 clear_htree(cd->ctx, cd->pctx.ino);
657 dx_dir->numblocks = 0;
658 e2fsck_rehash_dir_later(cd->ctx, cd->pctx.ino);
659 }
660 #endif /* ENABLE_HTREE */
661
662 /*
663 * Given a busted directory, try to salvage it somehow.
664 *
665 */
666 static void salvage_directory(ext2_filsys fs,
667 struct ext2_dir_entry *dirent,
668 struct ext2_dir_entry *prev,
669 unsigned int *offset,
670 unsigned int block_len)
671 {
672 char *cp = (char *) dirent;
673 int left;
674 unsigned int rec_len, prev_rec_len;
675 unsigned int name_len = ext2fs_dirent_name_len(dirent);
676
677 (void) ext2fs_get_rec_len(fs, dirent, &rec_len);
678 left = block_len - *offset - rec_len;
679
680 /*
681 * Special case of directory entry of size 8: copy what's left
682 * of the directory block up to cover up the invalid hole.
683 */
684 if ((left >= 12) && (rec_len == 8)) {
685 memmove(cp, cp+8, left);
686 memset(cp + left, 0, 8);
687 return;
688 }
689 /*
690 * If the directory entry overruns the end of the directory
691 * block, and the name is small enough to fit, then adjust the
692 * record length.
693 */
694 if ((left < 0) &&
695 ((int) rec_len + left > 8) &&
696 ((int) name_len + 8 <= (int) rec_len + left) &&
697 dirent->inode <= fs->super->s_inodes_count &&
698 strnlen(dirent->name, name_len) == name_len) {
699 (void) ext2fs_set_rec_len(fs, (int) rec_len + left, dirent);
700 return;
701 }
702 /*
703 * If the record length of the directory entry is a multiple
704 * of four, and not too big, such that it is valid, let the
705 * previous directory entry absorb the invalid one.
706 */
707 if (prev && rec_len && (rec_len % 4) == 0 &&
708 (*offset + rec_len <= block_len)) {
709 (void) ext2fs_get_rec_len(fs, prev, &prev_rec_len);
710 prev_rec_len += rec_len;
711 (void) ext2fs_set_rec_len(fs, prev_rec_len, prev);
712 *offset += rec_len;
713 return;
714 }
715 /*
716 * Default salvage method --- kill all of the directory
717 * entries for the rest of the block. We will either try to
718 * absorb it into the previous directory entry, or create a
719 * new empty directory entry the rest of the directory block.
720 */
721 if (prev) {
722 (void) ext2fs_get_rec_len(fs, prev, &prev_rec_len);
723 prev_rec_len += block_len - *offset;
724 (void) ext2fs_set_rec_len(fs, prev_rec_len, prev);
725 *offset = fs->blocksize;
726 } else {
727 rec_len = block_len - *offset;
728 (void) ext2fs_set_rec_len(fs, rec_len, dirent);
729 ext2fs_dirent_set_name_len(dirent, 0);
730 ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN);
731 dirent->inode = 0;
732 }
733 }
734
735 static int is_last_entry(ext2_filsys fs, int inline_data_size,
736 unsigned int offset, int csum_size)
737 {
738 if (inline_data_size)
739 return (offset < inline_data_size);
740 else
741 return (offset < fs->blocksize - csum_size);
742 }
743
744 #define NEXT_DIRENT(d) ((void *)((char *)(d) + (d)->rec_len))
745 static errcode_t insert_dirent_tail(ext2_filsys fs, void *dirbuf)
746 {
747 struct ext2_dir_entry *d;
748 void *top;
749 struct ext2_dir_entry_tail *t;
750
751 d = dirbuf;
752 top = EXT2_DIRENT_TAIL(dirbuf, fs->blocksize);
753
754 while (d->rec_len && !(d->rec_len & 0x3) && NEXT_DIRENT(d) <= top)
755 d = NEXT_DIRENT(d);
756
757 if (d != top) {
758 size_t min_size = EXT2_DIR_REC_LEN(
759 ext2fs_dirent_name_len(dirbuf));
760 if (min_size > top - (void *)d)
761 return EXT2_ET_DIR_NO_SPACE_FOR_CSUM;
762 d->rec_len = top - (void *)d;
763 }
764
765 t = (struct ext2_dir_entry_tail *)top;
766 if (t->det_reserved_zero1 ||
767 t->det_rec_len != sizeof(struct ext2_dir_entry_tail) ||
768 t->det_reserved_name_len != EXT2_DIR_NAME_LEN_CSUM)
769 ext2fs_initialize_dirent_tail(fs, t);
770
771 return 0;
772 }
773 #undef NEXT_DIRENT
774
775 static errcode_t fix_inline_dir_size(e2fsck_t ctx, ext2_ino_t ino,
776 size_t *inline_data_size,
777 struct problem_context *pctx,
778 char *buf)
779 {
780 ext2_filsys fs = ctx->fs;
781 struct ext2_inode inode;
782 size_t new_size, old_size;
783 errcode_t retval;
784
785 old_size = *inline_data_size;
786 new_size = old_size + (4 - (old_size & 3));
787 memset(buf + old_size, 0, new_size - old_size);
788 retval = ext2fs_inline_data_set(fs, ino, 0, buf, new_size);
789 if (retval == EXT2_ET_INLINE_DATA_NO_SPACE) {
790 new_size -= 4;
791 retval = ext2fs_inline_data_set(fs, ino, 0, buf, new_size);
792 if (retval) {
793 if (fix_problem(ctx, PR_2_FIX_INLINE_DIR_FAILED,
794 pctx)) {
795 new_size = 0;
796 goto write_inode;
797 }
798 goto err;
799 }
800 } else if (retval) {
801 if (fix_problem(ctx, PR_2_FIX_INLINE_DIR_FAILED,
802 pctx)) {
803 new_size = 0;
804 goto write_inode;
805 }
806 goto err;
807 }
808
809 write_inode:
810 retval = ext2fs_read_inode(fs, ino, &inode);
811 if (retval)
812 goto err;
813
814 retval = ext2fs_inode_size_set(fs, &inode, new_size);
815 if (retval)
816 goto err;
817 if (new_size == 0)
818 inode.i_flags &= ~EXT4_INLINE_DATA_FL;
819 retval = ext2fs_write_inode(fs, ino, &inode);
820 if (retval)
821 goto err;
822 *inline_data_size = new_size;
823
824 err:
825 return retval;
826 }
827
828 static int check_dir_block(ext2_filsys fs,
829 struct ext2_db_entry2 *db,
830 void *priv_data)
831 {
832 struct dx_dir_info *dx_dir;
833 #ifdef ENABLE_HTREE
834 struct dx_dirblock_info *dx_db = 0;
835 #endif /* ENABLE_HTREE */
836 struct ext2_dir_entry *dirent, *prev, dot, dotdot;
837 ext2_dirhash_t hash;
838 unsigned int offset = 0;
839 int dir_modified = 0;
840 int dot_state;
841 unsigned int rec_len;
842 blk64_t block_nr = db->blk;
843 ext2_ino_t ino = db->ino;
844 ext2_ino_t subdir_parent;
845 __u16 links;
846 struct check_dir_struct *cd;
847 char *buf;
848 e2fsck_t ctx;
849 problem_t problem;
850 struct ext2_dx_root_info *root;
851 struct ext2_dx_countlimit *limit;
852 static dict_t de_dict;
853 struct problem_context pctx;
854 int dups_found = 0;
855 int ret;
856 int dx_csum_size = 0, de_csum_size = 0;
857 int failed_csum = 0;
858 int is_leaf = 1;
859 size_t inline_data_size = 0;
860 int filetype = 0;
861
862 cd = (struct check_dir_struct *) priv_data;
863 buf = cd->buf;
864 ctx = cd->ctx;
865
866 if (ctx->flags & E2F_FLAG_SIGNAL_MASK || ctx->flags & E2F_FLAG_RESTART)
867 return DIRENT_ABORT;
868
869 if (ctx->progress && (ctx->progress)(ctx, 2, cd->count++, cd->max))
870 return DIRENT_ABORT;
871
872 if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
873 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
874 dx_csum_size = sizeof(struct ext2_dx_tail);
875 de_csum_size = sizeof(struct ext2_dir_entry_tail);
876 }
877
878 if (EXT2_HAS_INCOMPAT_FEATURE(fs->super,
879 EXT2_FEATURE_INCOMPAT_FILETYPE))
880 filetype = EXT2_FT_DIR << 8;
881
882 /*
883 * Make sure the inode is still in use (could have been
884 * deleted in the duplicate/bad blocks pass.
885 */
886 if (!(ext2fs_test_inode_bitmap2(ctx->inode_used_map, ino)))
887 return 0;
888
889 cd->pctx.ino = ino;
890 cd->pctx.blk = block_nr;
891 cd->pctx.blkcount = db->blockcnt;
892 cd->pctx.ino2 = 0;
893 cd->pctx.dirent = 0;
894 cd->pctx.num = 0;
895
896 if (EXT2_HAS_INCOMPAT_FEATURE(fs->super,
897 EXT4_FEATURE_INCOMPAT_INLINE_DATA)) {
898 errcode_t ec;
899
900 ec = ext2fs_inline_data_size(fs, ino, &inline_data_size);
901 if (ec && ec != EXT2_ET_NO_INLINE_DATA)
902 return DIRENT_ABORT;
903 }
904
905 if (db->blk == 0 && !inline_data_size) {
906 if (allocate_dir_block(ctx, db, buf, &cd->pctx))
907 return 0;
908 block_nr = db->blk;
909 }
910
911 if (db->blockcnt)
912 dot_state = 2;
913 else
914 dot_state = 0;
915
916 if (ctx->dirs_to_hash &&
917 ext2fs_u32_list_test(ctx->dirs_to_hash, ino))
918 dups_found++;
919
920 #if 0
921 printf("In process_dir_block block %lu, #%d, inode %lu\n", block_nr,
922 db->blockcnt, ino);
923 #endif
924
925 ehandler_operation(_("reading directory block"));
926 if (inline_data_size) {
927 cd->pctx.errcode = ext2fs_inline_data_get(fs, ino, 0, buf, 0);
928 if (cd->pctx.errcode)
929 goto inline_read_fail;
930 #ifdef WORDS_BIGENDIAN
931 *((__u32 *)buf) = ext2fs_le32_to_cpu(*((__u32 *)buf));
932 cd->pctx.errcode = ext2fs_dirent_swab_in2(fs,
933 buf + EXT4_INLINE_DATA_DOTDOT_SIZE,
934 inline_data_size - EXT4_INLINE_DATA_DOTDOT_SIZE,
935 0);
936 #endif
937 } else
938 cd->pctx.errcode = ext2fs_read_dir_block4(fs, block_nr,
939 buf, 0, ino);
940 inline_read_fail:
941 pctx.ino = ino;
942 pctx.num = inline_data_size;
943 if ((inline_data_size & 3) &&
944 fix_problem(ctx, PR_2_BAD_INLINE_DIR_SIZE, &pctx)) {
945 errcode_t err = fix_inline_dir_size(ctx, ino,
946 &inline_data_size, &pctx,
947 buf);
948 if (err)
949 return DIRENT_ABORT;
950
951 }
952 ehandler_operation(0);
953 if (cd->pctx.errcode == EXT2_ET_DIR_CORRUPTED)
954 cd->pctx.errcode = 0; /* We'll handle this ourselves */
955 else if (cd->pctx.errcode == EXT2_ET_DIR_CSUM_INVALID) {
956 cd->pctx.errcode = 0; /* We'll handle this ourselves */
957 failed_csum = 1;
958 }
959 if (cd->pctx.errcode) {
960 char *buf2;
961 if (!fix_problem(ctx, PR_2_READ_DIRBLOCK, &cd->pctx)) {
962 ctx->flags |= E2F_FLAG_ABORT;
963 return DIRENT_ABORT;
964 }
965 ext2fs_new_dir_block(fs, db->blockcnt == 0 ? ino : 0,
966 EXT2_ROOT_INO, &buf2);
967 memcpy(buf, buf2, fs->blocksize);
968 ext2fs_free_mem(&buf2);
969 }
970 #ifdef ENABLE_HTREE
971 dx_dir = e2fsck_get_dx_dir_info(ctx, ino);
972 if (dx_dir && dx_dir->numblocks) {
973 if (db->blockcnt >= dx_dir->numblocks) {
974 pctx.dir = ino;
975 if (fix_problem(ctx, PR_2_UNEXPECTED_HTREE_BLOCK,
976 &pctx)) {
977 clear_htree(ctx, ino);
978 dx_dir->numblocks = 0;
979 dx_db = 0;
980 goto out_htree;
981 }
982 fatal_error(ctx, _("Can not continue."));
983 }
984 dx_db = &dx_dir->dx_block[db->blockcnt];
985 dx_db->type = DX_DIRBLOCK_LEAF;
986 dx_db->phys = block_nr;
987 dx_db->min_hash = ~0;
988 dx_db->max_hash = 0;
989
990 dirent = (struct ext2_dir_entry *) buf;
991 (void) ext2fs_get_rec_len(fs, dirent, &rec_len);
992 limit = (struct ext2_dx_countlimit *) (buf+8);
993 if (db->blockcnt == 0) {
994 root = (struct ext2_dx_root_info *) (buf + 24);
995 dx_db->type = DX_DIRBLOCK_ROOT;
996 dx_db->flags |= DX_FLAG_FIRST | DX_FLAG_LAST;
997 if ((root->reserved_zero ||
998 root->info_length < 8 ||
999 root->indirect_levels > 1) &&
1000 fix_problem(ctx, PR_2_HTREE_BAD_ROOT, &cd->pctx)) {
1001 clear_htree(ctx, ino);
1002 dx_dir->numblocks = 0;
1003 dx_db = 0;
1004 }
1005 dx_dir->hashversion = root->hash_version;
1006 if ((dx_dir->hashversion <= EXT2_HASH_TEA) &&
1007 (fs->super->s_flags & EXT2_FLAGS_UNSIGNED_HASH))
1008 dx_dir->hashversion += 3;
1009 dx_dir->depth = root->indirect_levels + 1;
1010 } else if ((dirent->inode == 0) &&
1011 (rec_len == fs->blocksize) &&
1012 (ext2fs_dirent_name_len(dirent) == 0) &&
1013 (ext2fs_le16_to_cpu(limit->limit) ==
1014 ((fs->blocksize - (8 + dx_csum_size)) /
1015 sizeof(struct ext2_dx_entry))))
1016 dx_db->type = DX_DIRBLOCK_NODE;
1017 is_leaf = 0;
1018 }
1019 out_htree:
1020 #endif /* ENABLE_HTREE */
1021
1022 /* Leaf node with no space for csum? Rebuild dirs in pass 3A. */
1023 if (is_leaf && !inline_data_size && failed_csum &&
1024 !ext2fs_dirent_has_tail(fs, (struct ext2_dir_entry *)buf)) {
1025 de_csum_size = 0;
1026 if (e2fsck_dir_will_be_rehashed(ctx, ino)) {
1027 failed_csum = 0;
1028 goto skip_checksum;
1029 }
1030 if (!fix_problem(cd->ctx, PR_2_LEAF_NODE_MISSING_CSUM,
1031 &cd->pctx))
1032 goto skip_checksum;
1033 e2fsck_rehash_dir_later(ctx, ino);
1034 failed_csum = 0;
1035 goto skip_checksum;
1036 }
1037 /* htree nodes don't use fake dirents to store checksums */
1038 if (!is_leaf)
1039 de_csum_size = 0;
1040
1041 skip_checksum:
1042 dict_init(&de_dict, DICTCOUNT_T_MAX, dict_de_cmp);
1043 prev = 0;
1044 do {
1045 dgrp_t group;
1046 ext2_ino_t first_unused_inode;
1047 unsigned int name_len;
1048
1049 problem = 0;
1050 if (!inline_data_size || dot_state > 1) {
1051 size_t max_block_size = fs->blocksize - de_csum_size;
1052
1053 if (inline_data_size)
1054 max_block_size = inline_data_size;
1055 dirent = (struct ext2_dir_entry *) (buf + offset);
1056 (void) ext2fs_get_rec_len(fs, dirent, &rec_len);
1057 cd->pctx.dirent = dirent;
1058 cd->pctx.num = offset;
1059 if (((offset + rec_len) > fs->blocksize) ||
1060 (inline_data_size > 0 &&
1061 (offset + rec_len) > inline_data_size) ||
1062 (rec_len < 12) ||
1063 ((rec_len % 4) != 0) ||
1064 ((ext2fs_dirent_name_len(dirent) + 8) > rec_len)) {
1065 if (fix_problem(ctx, PR_2_DIR_CORRUPTED,
1066 &cd->pctx)) {
1067 #ifdef WORDS_BIGENDIAN
1068 /*
1069 * On big-endian systems, if the dirent
1070 * swap routine finds a rec_len that it
1071 * doesn't like, it continues
1072 * processing the block as if rec_len
1073 * == 8. This means that the name
1074 * field gets byte swapped, which means
1075 * that salvage will not detect the
1076 * correct name length (unless the name
1077 * has a length that's an exact
1078 * multiple of four bytes), and it'll
1079 * discard the entry (unnecessarily)
1080 * and the rest of the dirent block.
1081 * Therefore, swap the rest of the
1082 * block back to disk order, run
1083 * salvage, and re-swap anything after
1084 * the salvaged dirent.
1085 */
1086 int need_reswab = 0;
1087 if (rec_len < 8 || rec_len % 4) {
1088 need_reswab = 1;
1089 ext2fs_dirent_swab_in2(fs,
1090 ((char *)dirent) + 8,
1091 max_block_size - offset - 8,
1092 0);
1093 }
1094 #endif
1095 salvage_directory(fs, dirent, prev,
1096 &offset,
1097 max_block_size);
1098 #ifdef WORDS_BIGENDIAN
1099 if (need_reswab) {
1100 (void) ext2fs_get_rec_len(fs,
1101 dirent, &rec_len);
1102 ext2fs_dirent_swab_in2(fs,
1103 ((char *)dirent) + offset + rec_len,
1104 max_block_size - offset - rec_len,
1105 0);
1106 }
1107 #endif
1108 dir_modified++;
1109 continue;
1110 } else
1111 goto abort_free_dict;
1112 }
1113 } else {
1114 if (dot_state == 0) {
1115 memset(&dot, 0, sizeof(dot));
1116 dirent = &dot;
1117 dirent->inode = ino;
1118 dirent->rec_len = EXT2_DIR_REC_LEN(1);
1119 dirent->name_len = 1 | filetype;
1120 dirent->name[0] = '.';
1121 } else if (dot_state == 1) {
1122 memset(&dotdot, 0, sizeof(dotdot));
1123 dirent = &dotdot;
1124 dirent->inode =
1125 ((struct ext2_dir_entry *)buf)->inode;
1126 dirent->rec_len = EXT2_DIR_REC_LEN(2);
1127 dirent->name_len = 2 | filetype;
1128 dirent->name[0] = '.';
1129 dirent->name[1] = '.';
1130 } else {
1131 fatal_error(ctx, _("Can not continue."));
1132 }
1133 cd->pctx.dirent = dirent;
1134 cd->pctx.num = offset;
1135 }
1136
1137 if (dot_state == 0) {
1138 if (check_dot(ctx, dirent, ino, &cd->pctx))
1139 dir_modified++;
1140 } else if (dot_state == 1) {
1141 ret = check_dotdot(ctx, dirent, ino, &cd->pctx);
1142 if (ret < 0)
1143 goto abort_free_dict;
1144 if (ret)
1145 dir_modified++;
1146 } else if (dirent->inode == ino) {
1147 problem = PR_2_LINK_DOT;
1148 if (fix_problem(ctx, PR_2_LINK_DOT, &cd->pctx)) {
1149 dirent->inode = 0;
1150 dir_modified++;
1151 goto next;
1152 }
1153 }
1154 if (!dirent->inode)
1155 goto next;
1156
1157 /*
1158 * Make sure the inode listed is a legal one.
1159 */
1160 name_len = ext2fs_dirent_name_len(dirent);
1161 if (((dirent->inode != EXT2_ROOT_INO) &&
1162 (dirent->inode < EXT2_FIRST_INODE(fs->super))) ||
1163 (dirent->inode > fs->super->s_inodes_count)) {
1164 problem = PR_2_BAD_INO;
1165 } else if (ctx->inode_bb_map &&
1166 (ext2fs_test_inode_bitmap2(ctx->inode_bb_map,
1167 dirent->inode))) {
1168 /*
1169 * If the inode is in a bad block, offer to
1170 * clear it.
1171 */
1172 problem = PR_2_BB_INODE;
1173 } else if ((dot_state > 1) && (name_len == 1) &&
1174 (dirent->name[0] == '.')) {
1175 /*
1176 * If there's a '.' entry in anything other
1177 * than the first directory entry, it's a
1178 * duplicate entry that should be removed.
1179 */
1180 problem = PR_2_DUP_DOT;
1181 } else if ((dot_state > 1) && (name_len == 2) &&
1182 (dirent->name[0] == '.') &&
1183 (dirent->name[1] == '.')) {
1184 /*
1185 * If there's a '..' entry in anything other
1186 * than the second directory entry, it's a
1187 * duplicate entry that should be removed.
1188 */
1189 problem = PR_2_DUP_DOT_DOT;
1190 } else if ((dot_state > 1) &&
1191 (dirent->inode == EXT2_ROOT_INO)) {
1192 /*
1193 * Don't allow links to the root directory.
1194 * We check this specially to make sure we
1195 * catch this error case even if the root
1196 * directory hasn't been created yet.
1197 */
1198 problem = PR_2_LINK_ROOT;
1199 } else if ((dot_state > 1) && (name_len == 0)) {
1200 /*
1201 * Don't allow zero-length directory names.
1202 */
1203 problem = PR_2_NULL_NAME;
1204 }
1205
1206 if (problem) {
1207 if (fix_problem(ctx, problem, &cd->pctx)) {
1208 dirent->inode = 0;
1209 dir_modified++;
1210 goto next;
1211 } else {
1212 ext2fs_unmark_valid(fs);
1213 if (problem == PR_2_BAD_INO)
1214 goto next;
1215 }
1216 }
1217
1218 /*
1219 * If the inode was marked as having bad fields in
1220 * pass1, process it and offer to fix/clear it.
1221 * (We wait until now so that we can display the
1222 * pathname to the user.)
1223 */
1224 if (ctx->inode_bad_map &&
1225 ext2fs_test_inode_bitmap2(ctx->inode_bad_map,
1226 dirent->inode)) {
1227 if (e2fsck_process_bad_inode(ctx, ino,
1228 dirent->inode,
1229 buf + fs->blocksize)) {
1230 dirent->inode = 0;
1231 dir_modified++;
1232 goto next;
1233 }
1234 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1235 return DIRENT_ABORT;
1236 }
1237
1238 group = ext2fs_group_of_ino(fs, dirent->inode);
1239 first_unused_inode = group * fs->super->s_inodes_per_group +
1240 1 + fs->super->s_inodes_per_group -
1241 ext2fs_bg_itable_unused(fs, group);
1242 cd->pctx.group = group;
1243
1244 /*
1245 * Check if the inode was missed out because
1246 * _INODE_UNINIT flag was set or bg_itable_unused was
1247 * incorrect. If so, clear the _INODE_UNINIT flag and
1248 * restart e2fsck. In the future it would be nice if
1249 * we could call a function in pass1.c that checks the
1250 * newly visible inodes.
1251 */
1252 if (ext2fs_bg_flags_test(fs, group, EXT2_BG_INODE_UNINIT)) {
1253 pctx.num = dirent->inode;
1254 if (fix_problem(ctx, PR_2_INOREF_BG_INO_UNINIT,
1255 &cd->pctx)){
1256 ext2fs_bg_flags_clear(fs, group,
1257 EXT2_BG_INODE_UNINIT);
1258 ext2fs_mark_super_dirty(fs);
1259 ctx->flags |= E2F_FLAG_RESTART_LATER;
1260 } else {
1261 ext2fs_unmark_valid(fs);
1262 if (problem == PR_2_BAD_INO)
1263 goto next;
1264 }
1265 } else if (dirent->inode >= first_unused_inode) {
1266 pctx.num = dirent->inode;
1267 if (fix_problem(ctx, PR_2_INOREF_IN_UNUSED, &cd->pctx)){
1268 ext2fs_bg_itable_unused_set(fs, group, 0);
1269 ext2fs_mark_super_dirty(fs);
1270 ctx->flags |= E2F_FLAG_RESTART_LATER;
1271 } else {
1272 ext2fs_unmark_valid(fs);
1273 if (problem == PR_2_BAD_INO)
1274 goto next;
1275 }
1276 }
1277
1278 /*
1279 * Offer to clear unused inodes; if we are going to be
1280 * restarting the scan due to bg_itable_unused being
1281 * wrong, then don't clear any inodes to avoid zapping
1282 * inodes that were skipped during pass1 due to an
1283 * incorrect bg_itable_unused; we'll get any real
1284 * problems after we restart.
1285 */
1286 if (!(ctx->flags & E2F_FLAG_RESTART_LATER) &&
1287 !(ext2fs_test_inode_bitmap2(ctx->inode_used_map,
1288 dirent->inode)))
1289 problem = PR_2_UNUSED_INODE;
1290
1291 if (problem) {
1292 if (fix_problem(ctx, problem, &cd->pctx)) {
1293 dirent->inode = 0;
1294 dir_modified++;
1295 goto next;
1296 } else {
1297 ext2fs_unmark_valid(fs);
1298 if (problem == PR_2_BAD_INO)
1299 goto next;
1300 }
1301 }
1302
1303 if (check_name(ctx, dirent, ino, &cd->pctx))
1304 dir_modified++;
1305
1306 if (check_filetype(ctx, dirent, ino, &cd->pctx))
1307 dir_modified++;
1308
1309 #ifdef ENABLE_HTREE
1310 if (dx_db) {
1311 ext2fs_dirhash(dx_dir->hashversion, dirent->name,
1312 ext2fs_dirent_name_len(dirent),
1313 fs->super->s_hash_seed, &hash, 0);
1314 if (hash < dx_db->min_hash)
1315 dx_db->min_hash = hash;
1316 if (hash > dx_db->max_hash)
1317 dx_db->max_hash = hash;
1318 }
1319 #endif
1320
1321 /*
1322 * If this is a directory, then mark its parent in its
1323 * dir_info structure. If the parent field is already
1324 * filled in, then this directory has more than one
1325 * hard link. We assume the first link is correct,
1326 * and ask the user if he/she wants to clear this one.
1327 */
1328 if ((dot_state > 1) &&
1329 (ext2fs_test_inode_bitmap2(ctx->inode_dir_map,
1330 dirent->inode))) {
1331 if (e2fsck_dir_info_get_parent(ctx, dirent->inode,
1332 &subdir_parent)) {
1333 cd->pctx.ino = dirent->inode;
1334 fix_problem(ctx, PR_2_NO_DIRINFO, &cd->pctx);
1335 goto abort_free_dict;
1336 }
1337 if (subdir_parent) {
1338 cd->pctx.ino2 = subdir_parent;
1339 if (fix_problem(ctx, PR_2_LINK_DIR,
1340 &cd->pctx)) {
1341 dirent->inode = 0;
1342 dir_modified++;
1343 goto next;
1344 }
1345 cd->pctx.ino2 = 0;
1346 } else {
1347 (void) e2fsck_dir_info_set_parent(ctx,
1348 dirent->inode, ino);
1349 }
1350 }
1351
1352 if (dups_found) {
1353 ;
1354 } else if (dict_lookup(&de_dict, dirent)) {
1355 clear_problem_context(&pctx);
1356 pctx.ino = ino;
1357 pctx.dirent = dirent;
1358 fix_problem(ctx, PR_2_REPORT_DUP_DIRENT, &pctx);
1359 e2fsck_rehash_dir_later(ctx, ino);
1360 dups_found++;
1361 } else
1362 dict_alloc_insert(&de_dict, dirent, dirent);
1363
1364 ext2fs_icount_increment(ctx->inode_count, dirent->inode,
1365 &links);
1366 if (links > 1)
1367 ctx->fs_links_count++;
1368 ctx->fs_total_count++;
1369 next:
1370 prev = dirent;
1371 if (dir_modified)
1372 (void) ext2fs_get_rec_len(fs, dirent, &rec_len);
1373 if (!inline_data_size || dot_state > 1) {
1374 offset += rec_len;
1375 } else {
1376 if (dot_state == 1) {
1377 offset = 4;
1378 /*
1379 * If we get here, we're checking an inline
1380 * directory and we've just checked a (fake)
1381 * dotdot entry that we created on the stack.
1382 * Therefore set 'prev' to NULL so that if we
1383 * call salvage_directory on the next entry,
1384 * it won't try to absorb the next entry into
1385 * the on-stack dotdot entry.
1386 */
1387 prev = NULL;
1388 }
1389 }
1390 dot_state++;
1391 } while (is_last_entry(fs, inline_data_size, offset, de_csum_size));
1392 #if 0
1393 printf("\n");
1394 #endif
1395 #ifdef ENABLE_HTREE
1396 if (dx_db) {
1397 #ifdef DX_DEBUG
1398 printf("db_block %d, type %d, min_hash 0x%0x, max_hash 0x%0x\n",
1399 db->blockcnt, dx_db->type,
1400 dx_db->min_hash, dx_db->max_hash);
1401 #endif
1402 cd->pctx.dir = cd->pctx.ino;
1403 if ((dx_db->type == DX_DIRBLOCK_ROOT) ||
1404 (dx_db->type == DX_DIRBLOCK_NODE))
1405 parse_int_node(fs, db, cd, dx_dir, buf, failed_csum);
1406 }
1407 #endif /* ENABLE_HTREE */
1408
1409 if (inline_data_size) {
1410 if (offset != inline_data_size) {
1411 cd->pctx.num = rec_len + offset - inline_data_size;
1412 if (fix_problem(ctx, PR_2_FINAL_RECLEN, &cd->pctx)) {
1413 dirent->rec_len = cd->pctx.num;
1414 dir_modified++;
1415 }
1416 }
1417 } else {
1418 if (offset != fs->blocksize - de_csum_size) {
1419 cd->pctx.num = rec_len - (fs->blocksize - de_csum_size) +
1420 offset;
1421 if (fix_problem(ctx, PR_2_FINAL_RECLEN, &cd->pctx)) {
1422 dirent->rec_len = cd->pctx.num;
1423 dir_modified++;
1424 }
1425 }
1426 }
1427 if (dir_modified) {
1428 int flags, will_rehash;
1429 /* leaf block with no tail? Rehash dirs later. */
1430 if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
1431 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) &&
1432 is_leaf &&
1433 !inline_data_size &&
1434 !ext2fs_dirent_has_tail(fs, (struct ext2_dir_entry *)buf)) {
1435 if (insert_dirent_tail(fs, buf) == 0)
1436 goto write_and_fix;
1437 e2fsck_rehash_dir_later(ctx, ino);
1438 }
1439
1440 write_and_fix:
1441 will_rehash = e2fsck_dir_will_be_rehashed(ctx, ino);
1442 if (will_rehash) {
1443 flags = ctx->fs->flags;
1444 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
1445 }
1446 if (inline_data_size) {
1447 #ifdef WORDS_BIGENDIAN
1448 *((__u32 *)buf) = ext2fs_le32_to_cpu(*((__u32 *)buf));
1449 cd->pctx.errcode = ext2fs_dirent_swab_out2(fs,
1450 buf + EXT4_INLINE_DATA_DOTDOT_SIZE,
1451 inline_data_size -
1452 EXT4_INLINE_DATA_DOTDOT_SIZE,
1453 0);
1454 if (cd->pctx.errcode &&
1455 !fix_problem(ctx, PR_2_WRITE_DIRBLOCK, &cd->pctx))
1456 goto abort_free_dict;
1457 #endif
1458 cd->pctx.errcode =
1459 ext2fs_inline_data_set(fs, ino, 0, buf,
1460 inline_data_size);
1461 } else
1462 cd->pctx.errcode = ext2fs_write_dir_block4(fs, block_nr,
1463 buf, 0, ino);
1464 if (will_rehash)
1465 ctx->fs->flags = (flags &
1466 EXT2_FLAG_IGNORE_CSUM_ERRORS) |
1467 (ctx->fs->flags &
1468 ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
1469 if (cd->pctx.errcode) {
1470 if (!fix_problem(ctx, PR_2_WRITE_DIRBLOCK,
1471 &cd->pctx))
1472 goto abort_free_dict;
1473 }
1474 ext2fs_mark_changed(fs);
1475 } else if (is_leaf && failed_csum && !dir_modified) {
1476 /*
1477 * If a leaf node that fails csum makes it this far without
1478 * alteration, ask the user if the checksum should be fixed.
1479 */
1480 if (fix_problem(ctx, PR_2_LEAF_NODE_ONLY_CSUM_INVALID,
1481 &cd->pctx))
1482 goto write_and_fix;
1483 }
1484 dict_free_nodes(&de_dict);
1485 return 0;
1486 abort_free_dict:
1487 ctx->flags |= E2F_FLAG_ABORT;
1488 dict_free_nodes(&de_dict);
1489 return DIRENT_ABORT;
1490 }
1491
1492 struct del_block {
1493 e2fsck_t ctx;
1494 e2_blkcnt_t num;
1495 };
1496
1497 /*
1498 * This function is called to deallocate a block, and is an interator
1499 * functioned called by deallocate inode via ext2fs_iterate_block().
1500 */
1501 static int deallocate_inode_block(ext2_filsys fs,
1502 blk64_t *block_nr,
1503 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1504 blk64_t ref_block EXT2FS_ATTR((unused)),
1505 int ref_offset EXT2FS_ATTR((unused)),
1506 void *priv_data)
1507 {
1508 struct del_block *p = priv_data;
1509
1510 if (HOLE_BLKADDR(*block_nr))
1511 return 0;
1512 if ((*block_nr < fs->super->s_first_data_block) ||
1513 (*block_nr >= ext2fs_blocks_count(fs->super)))
1514 return 0;
1515 if ((*block_nr % EXT2FS_CLUSTER_RATIO(fs)) == 0)
1516 ext2fs_block_alloc_stats2(fs, *block_nr, -1);
1517 p->num++;
1518 return 0;
1519 }
1520
1521 /*
1522 * This fuction deallocates an inode
1523 */
1524 static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf)
1525 {
1526 ext2_filsys fs = ctx->fs;
1527 struct ext2_inode inode;
1528 struct problem_context pctx;
1529 __u32 count;
1530 struct del_block del_block;
1531
1532 e2fsck_read_inode(ctx, ino, &inode, "deallocate_inode");
1533 clear_problem_context(&pctx);
1534 pctx.ino = ino;
1535
1536 /*
1537 * Fix up the bitmaps...
1538 */
1539 e2fsck_read_bitmaps(ctx);
1540 ext2fs_inode_alloc_stats2(fs, ino, -1, LINUX_S_ISDIR(inode.i_mode));
1541
1542 if (ext2fs_file_acl_block(fs, &inode) &&
1543 (fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR)) {
1544 pctx.errcode = ext2fs_adjust_ea_refcount3(fs,
1545 ext2fs_file_acl_block(fs, &inode),
1546 block_buf, -1, &count, ino);
1547 if (pctx.errcode == EXT2_ET_BAD_EA_BLOCK_NUM) {
1548 pctx.errcode = 0;
1549 count = 1;
1550 }
1551 if (pctx.errcode) {
1552 pctx.blk = ext2fs_file_acl_block(fs, &inode);
1553 fix_problem(ctx, PR_2_ADJ_EA_REFCOUNT, &pctx);
1554 ctx->flags |= E2F_FLAG_ABORT;
1555 return;
1556 }
1557 if (count == 0) {
1558 ext2fs_block_alloc_stats2(fs,
1559 ext2fs_file_acl_block(fs, &inode), -1);
1560 }
1561 ext2fs_file_acl_block_set(fs, &inode, 0);
1562 }
1563
1564 if (!ext2fs_inode_has_valid_blocks2(fs, &inode))
1565 goto clear_inode;
1566
1567 /* Inline data inodes don't have blocks to iterate */
1568 if (inode.i_flags & EXT4_INLINE_DATA_FL)
1569 goto clear_inode;
1570
1571 if (LINUX_S_ISREG(inode.i_mode) &&
1572 ext2fs_needs_large_file_feature(EXT2_I_SIZE(&inode)))
1573 ctx->large_files--;
1574
1575 del_block.ctx = ctx;
1576 del_block.num = 0;
1577 pctx.errcode = ext2fs_block_iterate3(fs, ino, 0, block_buf,
1578 deallocate_inode_block,
1579 &del_block);
1580 if (pctx.errcode) {
1581 fix_problem(ctx, PR_2_DEALLOC_INODE, &pctx);
1582 ctx->flags |= E2F_FLAG_ABORT;
1583 return;
1584 }
1585 clear_inode:
1586 /* Inode may have changed by block_iterate, so reread it */
1587 e2fsck_read_inode(ctx, ino, &inode, "deallocate_inode");
1588 e2fsck_clear_inode(ctx, ino, &inode, 0, "deallocate_inode");
1589 }
1590
1591 /*
1592 * This fuction clears the htree flag on an inode
1593 */
1594 static void clear_htree(e2fsck_t ctx, ext2_ino_t ino)
1595 {
1596 struct ext2_inode inode;
1597
1598 e2fsck_read_inode(ctx, ino, &inode, "clear_htree");
1599 inode.i_flags = inode.i_flags & ~EXT2_INDEX_FL;
1600 e2fsck_write_inode(ctx, ino, &inode, "clear_htree");
1601 if (ctx->dirs_to_hash)
1602 ext2fs_u32_list_add(ctx->dirs_to_hash, ino);
1603 }
1604
1605
1606 int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir,
1607 ext2_ino_t ino, char *buf)
1608 {
1609 ext2_filsys fs = ctx->fs;
1610 struct ext2_inode inode;
1611 int inode_modified = 0;
1612 int not_fixed = 0;
1613 unsigned char *frag, *fsize;
1614 struct problem_context pctx;
1615 problem_t problem = 0;
1616
1617 e2fsck_read_inode(ctx, ino, &inode, "process_bad_inode");
1618
1619 clear_problem_context(&pctx);
1620 pctx.ino = ino;
1621 pctx.dir = dir;
1622 pctx.inode = &inode;
1623
1624 if (ext2fs_file_acl_block(fs, &inode) &&
1625 !(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR)) {
1626 if (fix_problem(ctx, PR_2_FILE_ACL_ZERO, &pctx)) {
1627 ext2fs_file_acl_block_set(fs, &inode, 0);
1628 inode_modified++;
1629 } else
1630 not_fixed++;
1631 }
1632
1633 if (!LINUX_S_ISDIR(inode.i_mode) && !LINUX_S_ISREG(inode.i_mode) &&
1634 !LINUX_S_ISCHR(inode.i_mode) && !LINUX_S_ISBLK(inode.i_mode) &&
1635 !LINUX_S_ISLNK(inode.i_mode) && !LINUX_S_ISFIFO(inode.i_mode) &&
1636 !(LINUX_S_ISSOCK(inode.i_mode)))
1637 problem = PR_2_BAD_MODE;
1638 else if (LINUX_S_ISCHR(inode.i_mode)
1639 && !e2fsck_pass1_check_device_inode(fs, &inode))
1640 problem = PR_2_BAD_CHAR_DEV;
1641 else if (LINUX_S_ISBLK(inode.i_mode)
1642 && !e2fsck_pass1_check_device_inode(fs, &inode))
1643 problem = PR_2_BAD_BLOCK_DEV;
1644 else if (LINUX_S_ISFIFO(inode.i_mode)
1645 && !e2fsck_pass1_check_device_inode(fs, &inode))
1646 problem = PR_2_BAD_FIFO;
1647 else if (LINUX_S_ISSOCK(inode.i_mode)
1648 && !e2fsck_pass1_check_device_inode(fs, &inode))
1649 problem = PR_2_BAD_SOCKET;
1650 else if (LINUX_S_ISLNK(inode.i_mode)
1651 && !e2fsck_pass1_check_symlink(fs, ino, &inode, buf)) {
1652 problem = PR_2_INVALID_SYMLINK;
1653 }
1654
1655 if (problem) {
1656 if (fix_problem(ctx, problem, &pctx)) {
1657 deallocate_inode(ctx, ino, 0);
1658 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1659 return 0;
1660 return 1;
1661 } else
1662 not_fixed++;
1663 problem = 0;
1664 }
1665
1666 if (inode.i_faddr) {
1667 if (fix_problem(ctx, PR_2_FADDR_ZERO, &pctx)) {
1668 inode.i_faddr = 0;
1669 inode_modified++;
1670 } else
1671 not_fixed++;
1672 }
1673
1674 switch (fs->super->s_creator_os) {
1675 case EXT2_OS_HURD:
1676 frag = &inode.osd2.hurd2.h_i_frag;
1677 fsize = &inode.osd2.hurd2.h_i_fsize;
1678 break;
1679 default:
1680 frag = fsize = 0;
1681 }
1682 if (frag && *frag) {
1683 pctx.num = *frag;
1684 if (fix_problem(ctx, PR_2_FRAG_ZERO, &pctx)) {
1685 *frag = 0;
1686 inode_modified++;
1687 } else
1688 not_fixed++;
1689 pctx.num = 0;
1690 }
1691 if (fsize && *fsize) {
1692 pctx.num = *fsize;
1693 if (fix_problem(ctx, PR_2_FSIZE_ZERO, &pctx)) {
1694 *fsize = 0;
1695 inode_modified++;
1696 } else
1697 not_fixed++;
1698 pctx.num = 0;
1699 }
1700
1701 if ((fs->super->s_creator_os == EXT2_OS_LINUX) &&
1702 !(fs->super->s_feature_ro_compat &
1703 EXT4_FEATURE_RO_COMPAT_HUGE_FILE) &&
1704 (inode.osd2.linux2.l_i_blocks_hi != 0)) {
1705 pctx.num = inode.osd2.linux2.l_i_blocks_hi;
1706 if (fix_problem(ctx, PR_2_BLOCKS_HI_ZERO, &pctx)) {
1707 inode.osd2.linux2.l_i_blocks_hi = 0;
1708 inode_modified++;
1709 }
1710 }
1711
1712 if (!(fs->super->s_feature_incompat &
1713 EXT4_FEATURE_INCOMPAT_64BIT) &&
1714 inode.osd2.linux2.l_i_file_acl_high != 0) {
1715 pctx.num = inode.osd2.linux2.l_i_file_acl_high;
1716 if (fix_problem(ctx, PR_2_I_FILE_ACL_HI_ZERO, &pctx)) {
1717 inode.osd2.linux2.l_i_file_acl_high = 0;
1718 inode_modified++;
1719 } else
1720 not_fixed++;
1721 }
1722
1723 if (ext2fs_file_acl_block(fs, &inode) &&
1724 ((ext2fs_file_acl_block(fs, &inode) < fs->super->s_first_data_block) ||
1725 (ext2fs_file_acl_block(fs, &inode) >= ext2fs_blocks_count(fs->super)))) {
1726 if (fix_problem(ctx, PR_2_FILE_ACL_BAD, &pctx)) {
1727 ext2fs_file_acl_block_set(fs, &inode, 0);
1728 inode_modified++;
1729 } else
1730 not_fixed++;
1731 }
1732 if (inode.i_dir_acl &&
1733 LINUX_S_ISDIR(inode.i_mode)) {
1734 if (fix_problem(ctx, PR_2_DIR_ACL_ZERO, &pctx)) {
1735 inode.i_dir_acl = 0;
1736 inode_modified++;
1737 } else
1738 not_fixed++;
1739 }
1740
1741 if (inode_modified)
1742 e2fsck_write_inode(ctx, ino, &inode, "process_bad_inode");
1743 if (!not_fixed && ctx->inode_bad_map)
1744 ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
1745 return 0;
1746 }
1747
1748 /*
1749 * allocate_dir_block --- this function allocates a new directory
1750 * block for a particular inode; this is done if a directory has
1751 * a "hole" in it, or if a directory has a illegal block number
1752 * that was zeroed out and now needs to be replaced.
1753 */
1754 static int allocate_dir_block(e2fsck_t ctx,
1755 struct ext2_db_entry2 *db,
1756 char *buf EXT2FS_ATTR((unused)),
1757 struct problem_context *pctx)
1758 {
1759 ext2_filsys fs = ctx->fs;
1760 blk64_t blk = 0;
1761 char *block;
1762 struct ext2_inode inode;
1763
1764 if (fix_problem(ctx, PR_2_DIRECTORY_HOLE, pctx) == 0)
1765 return 1;
1766
1767 /*
1768 * Read the inode and block bitmaps in; we'll be messing with
1769 * them.
1770 */
1771 e2fsck_read_bitmaps(ctx);
1772
1773 /*
1774 * First, find a free block
1775 */
1776 e2fsck_read_inode(ctx, db->ino, &inode, "allocate_dir_block");
1777 pctx->errcode = ext2fs_map_cluster_block(fs, db->ino, &inode,
1778 db->blockcnt, &blk);
1779 if (pctx->errcode || blk == 0) {
1780 blk = ext2fs_find_inode_goal(fs, db->ino, &inode, db->blockcnt);
1781 pctx->errcode = ext2fs_new_block2(fs, blk,
1782 ctx->block_found_map, &blk);
1783 if (pctx->errcode) {
1784 pctx->str = "ext2fs_new_block";
1785 fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
1786 return 1;
1787 }
1788 }
1789 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
1790 ext2fs_mark_block_bitmap2(fs->block_map, blk);
1791 ext2fs_mark_bb_dirty(fs);
1792
1793 /*
1794 * Now let's create the actual data block for the inode
1795 */
1796 if (db->blockcnt)
1797 pctx->errcode = ext2fs_new_dir_block(fs, 0, 0, &block);
1798 else
1799 pctx->errcode = ext2fs_new_dir_block(fs, db->ino,
1800 EXT2_ROOT_INO, &block);
1801
1802 if (pctx->errcode) {
1803 pctx->str = "ext2fs_new_dir_block";
1804 fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
1805 return 1;
1806 }
1807
1808 pctx->errcode = ext2fs_write_dir_block4(fs, blk, block, 0, db->ino);
1809 ext2fs_free_mem(&block);
1810 if (pctx->errcode) {
1811 pctx->str = "ext2fs_write_dir_block";
1812 fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
1813 return 1;
1814 }
1815
1816 /*
1817 * Update the inode block count
1818 */
1819 ext2fs_iblk_add_blocks(fs, &inode, 1);
1820 if (EXT2_I_SIZE(&inode) < (db->blockcnt+1) * fs->blocksize) {
1821 pctx->errcode = ext2fs_inode_size_set(fs, &inode,
1822 (db->blockcnt+1) * fs->blocksize);
1823 if (pctx->errcode) {
1824 pctx->str = "ext2fs_inode_size_set";
1825 fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
1826 return 1;
1827 }
1828 }
1829 e2fsck_write_inode(ctx, db->ino, &inode, "allocate_dir_block");
1830
1831 /*
1832 * Finally, update the block pointers for the inode
1833 */
1834 db->blk = blk;
1835 pctx->errcode = ext2fs_bmap2(fs, db->ino, &inode, 0, BMAP_SET,
1836 db->blockcnt, 0, &blk);
1837 if (pctx->errcode) {
1838 pctx->str = "ext2fs_block_iterate";
1839 fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
1840 return 1;
1841 }
1842
1843 return 0;
1844 }
Unnamed repository; edit this file 'description' to name the repository.