2 * pass2.c --- check directory structure
4 * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o
7 * This file may be redistributed under the terms of the GNU Public
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:
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
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 '..'.
27 * To minimize disk seek time, the directory blocks are processed in
28 * sorted order of block numbers.
30 * Pass 2 also collects the following information:
31 * - The inode numbers of the subdirectories for each directory.
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_badness bitmap
37 * - The inode_dir_map bitmap
38 * - The encrypted_file_info
39 * - The inode_casefold_map bitmap
41 * Pass 2 frees the following data structures
42 * - The inode_reg_map bitmap
43 * - The encrypted_file_info
44 * - The inode_casefold_map bitmap
45 * - The inode_badness bitmap
48 #define _GNU_SOURCE 1 /* get strnlen() */
54 #include "support/dict.h"
56 #ifdef NO_INLINE_FUNCS
59 #define _INLINE_ inline
62 /* #define DX_DEBUG */
65 * Keeps track of how many times an inode is referenced.
67 static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf);
68 static int check_dir_block2(ext2_filsys fs,
69 struct ext2_db_entry2 *dir_blocks_info,
71 static int check_dir_block(ext2_filsys fs,
72 struct ext2_db_entry2 *dir_blocks_info,
74 static int allocate_dir_block(e2fsck_t ctx,
75 struct ext2_db_entry2 *dir_blocks_info,
76 char *buf, struct problem_context *pctx);
77 static void clear_htree(e2fsck_t ctx, ext2_ino_t ino);
78 static short htree_depth(struct dx_dir_info *dx_dir,
79 struct dx_dirblock_info *dx_db);
80 static EXT2_QSORT_TYPE special_dir_block_cmp(const void *a, const void *b);
82 struct check_dir_struct {
84 struct problem_context pctx;
87 unsigned long long list_offset;
88 unsigned long long ra_entries;
89 unsigned long long next_ra_off;
92 static void update_parents(struct dx_dir_info *dx_dir, int type)
94 struct dx_dirblock_info *dx_db, *dx_parent, *dx_previous;
97 for (b = 0, dx_db = dx_dir->dx_block;
98 b < dx_dir->numblocks;
100 dx_parent = &dx_dir->dx_block[dx_db->parent];
101 if (dx_db->type != type)
105 * XXX Make sure dx_parent->min_hash > dx_db->min_hash
107 if (dx_db->flags & DX_FLAG_FIRST) {
108 dx_parent->min_hash = dx_db->min_hash;
109 if (dx_parent->previous) {
111 &dx_dir->dx_block[dx_parent->previous];
112 dx_previous->node_max_hash =
117 * XXX Make sure dx_parent->max_hash < dx_db->max_hash
119 if (dx_db->flags & DX_FLAG_LAST) {
120 dx_parent->max_hash = dx_db->max_hash;
125 void e2fsck_pass2(e2fsck_t ctx)
127 struct ext2_super_block *sb = ctx->fs->super;
128 struct problem_context pctx;
129 ext2_filsys fs = ctx->fs;
131 #ifdef RESOURCE_TRACK
132 struct resource_track rtrack;
134 struct check_dir_struct cd;
135 struct dx_dir_info *dx_dir;
136 struct dx_dirblock_info *dx_db;
142 int (*check_dir_func)(ext2_filsys fs,
143 struct ext2_db_entry2 *dir_blocks_info,
146 init_resource_track(&rtrack, ctx->fs->io);
147 clear_problem_context(&cd.pctx);
150 mtrace_print("Pass 2");
153 if (!(ctx->options & E2F_OPT_PREEN))
154 fix_problem(ctx, PR_2_PASS_HEADER, &cd.pctx);
156 cd.pctx.errcode = e2fsck_setup_icount(ctx, "inode_count",
157 EXT2_ICOUNT_OPT_INCREMENT,
158 ctx->inode_link_info, &ctx->inode_count);
159 if (cd.pctx.errcode) {
160 fix_problem(ctx, PR_2_ALLOCATE_ICOUNT, &cd.pctx);
161 ctx->flags |= E2F_FLAG_ABORT;
164 buf = (char *) e2fsck_allocate_memory(ctx, 2*fs->blocksize,
165 "directory scan buffer");
168 * Set up the parent pointer for the root directory, if
169 * present. (If the root directory is not present, we will
170 * create it in pass 3.)
172 (void) e2fsck_dir_info_set_parent(ctx, EXT2_ROOT_INO, EXT2_ROOT_INO);
177 cd.max = ext2fs_dblist_count2(fs->dblist);
179 cd.ra_entries = ctx->readahead_kb * 1024 / ctx->fs->blocksize;
183 (void) (ctx->progress)(ctx, 2, 0, cd.max);
185 if (ext2fs_has_feature_dir_index(fs->super))
186 ext2fs_dblist_sort2(fs->dblist, special_dir_block_cmp);
188 check_dir_func = cd.ra_entries ? check_dir_block2 : check_dir_block;
189 cd.pctx.errcode = ext2fs_dblist_iterate2(fs->dblist, check_dir_func,
191 if (ctx->flags & E2F_FLAG_RESTART_LATER) {
192 ctx->flags |= E2F_FLAG_RESTART;
193 ctx->flags &= ~E2F_FLAG_RESTART_LATER;
196 if (ctx->flags & E2F_FLAG_RUN_RETURN)
199 if (cd.pctx.errcode) {
200 fix_problem(ctx, PR_2_DBLIST_ITERATE, &cd.pctx);
201 ctx->flags |= E2F_FLAG_ABORT;
205 for (i=0; (dx_dir = e2fsck_dx_dir_info_iter(ctx, &i)) != 0;) {
206 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
208 if (e2fsck_dir_will_be_rehashed(ctx, dx_dir->ino) ||
209 dx_dir->numblocks == 0)
211 clear_problem_context(&pctx);
213 pctx.dir = dx_dir->ino;
214 dx_db = dx_dir->dx_block;
215 if (dx_db->flags & DX_FLAG_REFERENCED)
216 dx_db->flags |= DX_FLAG_DUP_REF;
218 dx_db->flags |= DX_FLAG_REFERENCED;
220 * Find all of the first and last leaf blocks, and
221 * update their parent's min and max hash values
223 update_parents(dx_dir, DX_DIRBLOCK_LEAF);
225 /* for 3 level htree: update 2 level parent's min
226 * and max hash values */
227 update_parents(dx_dir, DX_DIRBLOCK_NODE);
229 for (b=0, dx_db = dx_dir->dx_block;
230 b < dx_dir->numblocks;
233 pctx.group = dx_db->parent;
235 if (!(dx_db->flags & DX_FLAG_FIRST) &&
236 (dx_db->min_hash < dx_db->node_min_hash)) {
237 pctx.blk = dx_db->min_hash;
238 pctx.blk2 = dx_db->node_min_hash;
239 code = PR_2_HTREE_MIN_HASH;
240 fix_problem(ctx, code, &pctx);
243 if (dx_db->type == DX_DIRBLOCK_LEAF) {
244 depth = htree_depth(dx_dir, dx_db);
245 if (depth != dx_dir->depth) {
246 pctx.num = dx_dir->depth;
247 code = PR_2_HTREE_BAD_DEPTH;
248 fix_problem(ctx, code, &pctx);
253 * This test doesn't apply for the root block
257 (dx_db->max_hash > dx_db->node_max_hash)) {
258 pctx.blk = dx_db->max_hash;
259 pctx.blk2 = dx_db->node_max_hash;
260 code = PR_2_HTREE_MAX_HASH;
261 fix_problem(ctx, code, &pctx);
264 if (!(dx_db->flags & DX_FLAG_REFERENCED)) {
265 code = PR_2_HTREE_NOTREF;
266 fix_problem(ctx, code, &pctx);
268 } else if (dx_db->flags & DX_FLAG_DUP_REF) {
269 code = PR_2_HTREE_DUPREF;
270 fix_problem(ctx, code, &pctx);
274 if (bad_dir && fix_problem(ctx, PR_2_HTREE_CLEAR, &pctx)) {
275 clear_htree(ctx, dx_dir->ino);
276 dx_dir->numblocks = 0;
279 e2fsck_free_dx_dir_info(ctx);
281 ext2fs_free_mem(&buf);
282 ext2fs_free_dblist(fs->dblist);
284 if (ctx->inode_reg_map) {
285 ext2fs_free_inode_bitmap(ctx->inode_reg_map);
286 ctx->inode_reg_map = 0;
288 if (ctx->inode_casefold_map) {
289 ext2fs_free_inode_bitmap(ctx->inode_casefold_map);
290 ctx->inode_casefold_map = 0;
292 destroy_encrypted_file_info(ctx);
293 if (ctx->casefolded_dirs) {
294 ext2fs_u32_list_free(ctx->casefolded_dirs);
295 ctx->casefolded_dirs = 0;
297 if (ctx->inode_badness) {
298 ext2fs_free_icount(ctx->inode_badness);
299 ctx->inode_badness = 0;
302 clear_problem_context(&pctx);
303 if (ctx->large_files) {
304 if (!ext2fs_has_feature_large_file(sb) &&
305 fix_problem(ctx, PR_2_FEATURE_LARGE_FILES, &pctx)) {
306 ext2fs_set_feature_large_file(sb);
307 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
308 ext2fs_mark_super_dirty(fs);
310 if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
311 fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) {
312 ext2fs_update_dynamic_rev(fs);
313 ext2fs_mark_super_dirty(fs);
317 print_resource_track(ctx, _("Pass 2"), &rtrack, fs->io);
319 ext2fs_free_mem(&buf);
322 #define MAX_DEPTH 32000
323 static short htree_depth(struct dx_dir_info *dx_dir,
324 struct dx_dirblock_info *dx_db)
328 while (dx_db->type != DX_DIRBLOCK_ROOT && depth < MAX_DEPTH) {
329 dx_db = &dx_dir->dx_block[dx_db->parent];
335 static int dict_de_cmp(const void *cmp_ctx, const void *a, const void *b)
337 const struct ext2_dir_entry *de_a, *de_b;
340 de_a = (const struct ext2_dir_entry *) a;
341 a_len = ext2fs_dirent_name_len(de_a);
342 de_b = (const struct ext2_dir_entry *) b;
343 b_len = ext2fs_dirent_name_len(de_b);
346 return (a_len - b_len);
348 return memcmp(de_a->name, de_b->name, a_len);
351 static int dict_de_cf_cmp(const void *cmp_ctx, const void *a, const void *b)
353 const struct ext2fs_nls_table *tbl = cmp_ctx;
354 const struct ext2_dir_entry *de_a, *de_b;
357 de_a = (const struct ext2_dir_entry *) a;
358 a_len = ext2fs_dirent_name_len(de_a);
359 de_b = (const struct ext2_dir_entry *) b;
360 b_len = ext2fs_dirent_name_len(de_b);
362 return ext2fs_casefold_cmp(tbl, (unsigned char *) de_a->name, a_len,
363 (unsigned char *) de_b->name, b_len);
367 * This is special sort function that makes sure that directory blocks
368 * with a dirblock of zero are sorted to the beginning of the list.
369 * This guarantees that the root node of the htree directories are
370 * processed first, so we know what hash version to use.
372 static EXT2_QSORT_TYPE special_dir_block_cmp(const void *a, const void *b)
374 const struct ext2_db_entry2 *db_a =
375 (const struct ext2_db_entry2 *) a;
376 const struct ext2_db_entry2 *db_b =
377 (const struct ext2_db_entry2 *) b;
379 if (db_a->blockcnt && !db_b->blockcnt)
382 if (!db_a->blockcnt && db_b->blockcnt)
385 if (db_a->blk != db_b->blk)
386 return (int) (db_a->blk - db_b->blk);
388 if (db_a->ino != db_b->ino)
389 return (int) (db_a->ino - db_b->ino);
391 return (int) (db_a->blockcnt - db_b->blockcnt);
394 void ext2_fix_dirent_dirdata(struct ext2_dir_entry *de)
396 __u16 file_type = de->name_len & (EXT2_FT_MASK << 8);
397 __u8 de_flags = (de->name_len >> 8) & ~EXT2_FT_MASK;
398 __u8 name_len = de->name_len & EXT2_NAME_LEN;
402 for (i = 0; i < 4; i++) {
403 __u8 flags = new_flag | (1 << i) << 4;
405 /* new_flag is accumulating flags that are set in de_flags
406 * and still fit inside rec_len. ext2_get_dirent_dirdata_size()
407 * returns the size of all the dirdata entries in flags, and
408 * chops off any that are beyond rec_len.
410 if ((de_flags & flags) == flags) {
411 int dirdatalen = ext2_get_dirdata_field_size(de,
413 int rlen = EXT2_DIR_NAME_LEN(name_len + dirdatalen);
415 if (rlen > de->rec_len)
422 de->name_len = name_len | file_type | (new_flag << 8);
426 * check for dirent data in ext3 dirent.
427 * return 0 if dirent data is ok.
428 * return 1 if dirent data does not exist.
429 * return 2 if dirent was modified due to error.
431 int e2fsck_check_dirent_data(e2fsck_t ctx, struct ext2_dir_entry *de,
432 unsigned int offset, struct problem_context *pctx)
434 if (!(ctx->fs->super->s_feature_incompat &
435 EXT4_FEATURE_INCOMPAT_DIRDATA)) {
436 if ((de->name_len >> 8) & ~EXT2_FT_MASK) {
437 /* clear dirent extra data flags. */
438 if (fix_problem(ctx, PR_2_CLEAR_DIRDATA, pctx)) {
439 de->name_len &= (EXT2_FT_MASK << 8) |
446 if ((de->name_len >> 8) & ~EXT2_FT_MASK) {
447 if (de->rec_len >= EXT2_DIR_REC_LEN(de) ||
448 de->rec_len + offset == EXT2_BLOCK_SIZE(ctx->fs->super)) {
449 if (ext2_get_dirdata_field_size(de,
451 EXT2_DIRENT_LUFID_SIZE == 1 /*size*/ + 1 /*NULL*/)
454 /* just clear dirent data flags for now, we should fix FID data
455 * in lustre specific pass.
457 if (fix_problem(ctx, PR_2_CLEAR_DIRDATA, pctx)) {
458 ext2_fix_dirent_dirdata(de);
459 if (ext2_get_dirdata_field_size(de,
460 EXT2_DIRENT_LUFID) !=
461 EXT2_DIRENT_LUFID_SIZE)
462 de->name_len &= ~(EXT2_DIRENT_LUFID << 8);
471 * Make sure the first entry in the directory is '.', and that the
472 * directory entry is sane.
474 static int check_dot(e2fsck_t ctx,
475 struct ext2_dir_entry *dirent, unsigned int offset,
476 ext2_ino_t ino, struct problem_context *pctx)
478 struct ext2_dir_entry *nextdir;
479 unsigned int rec_len, new_len;
482 problem_t problem = 0;
484 int ftype = EXT2_FT_DIR;
487 problem = PR_2_MISSING_DOT;
488 else if ((ext2fs_dirent_name_len(dirent) != 1) ||
489 (dirent->name[0] != '.'))
490 problem = PR_2_1ST_NOT_DOT;
491 else if (dirent->name[1] != '\0')
492 problem = PR_2_DOT_NULL_TERM;
494 dir_data_error = e2fsck_check_dirent_data(ctx, dirent, offset, pctx);
496 (void) ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
498 if (!ext2fs_has_feature_filetype(ctx->fs->super))
499 ftype = EXT2_FT_UNKNOWN;
500 if (fix_problem(ctx, problem, pctx)) {
502 rec_len = dirent->rec_len = 12;
504 ext2fs_dirent_set_name_len(dirent, 1);
505 ext2fs_dirent_set_file_type(dirent, ftype);
506 dirent->name[0] = '.';
507 dirent->name[1] = '\0';
512 if (dirent->inode != ino) {
513 if (fix_problem(ctx, PR_2_BAD_INODE_DOT, pctx)) {
519 new_len = rec_len - 12;
520 if (new_len > 12 && dir_data_error) {
522 fix_problem(ctx, PR_2_SPLIT_DOT, pctx)) {
523 nextdir = (struct ext2_dir_entry *)
524 ((char *) dirent + 12);
525 dirent->rec_len = 12;
526 /* if the next entry looks like "..", leave it
527 * and let check_dotdot() verify the dirent,
528 * otherwise zap the following entry. */
529 if (strncmp(nextdir->name, "..", 3) != 0) {
530 (void)ext2fs_set_rec_len(ctx->fs,
534 ext2fs_dirent_set_name_len(nextdir, 0);
535 ext2fs_dirent_set_file_type(nextdir,
546 * Make sure the second entry in the directory is '..', and that the
547 * directory entry is sane. We do not check the inode number of '..'
548 * here; this gets done in pass 3.
550 static int check_dotdot(e2fsck_t ctx,
551 struct ext2_dir_entry *dirent, unsigned int offset,
552 ext2_ino_t ino, struct problem_context *pctx)
554 problem_t problem = 0;
555 unsigned int rec_len;
557 int ftype = EXT2_FT_DIR;
560 problem = PR_2_MISSING_DOT_DOT;
561 else if ((ext2fs_dirent_name_len(dirent) != 2) ||
562 (dirent->name[0] != '.') ||
563 (dirent->name[1] != '.'))
564 problem = PR_2_2ND_NOT_DOT_DOT;
565 else if (dirent->name[2] != '\0')
566 problem = PR_2_DOT_DOT_NULL_TERM;
568 dir_data_error = e2fsck_check_dirent_data(ctx, dirent, offset, pctx);
570 (void) ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
572 if (!ext2fs_has_feature_filetype(ctx->fs->super))
573 ftype = EXT2_FT_UNKNOWN;
574 if (fix_problem(ctx, problem, pctx)) {
576 dirent->rec_len = 12;
578 * Note: we don't have the parent inode just
579 * yet, so we will fill it in with the root
580 * inode. This will get fixed in pass 3.
582 dirent->inode = EXT2_ROOT_INO;
583 ext2fs_dirent_set_name_len(dirent, 2);
584 ext2fs_dirent_set_file_type(dirent, ftype);
585 dirent->name[0] = '.';
586 dirent->name[1] = '.';
587 dirent->name[2] = '\0';
592 if (e2fsck_dir_info_set_dotdot(ctx, ino, dirent->inode)) {
593 fix_problem(ctx, PR_2_NO_DIRINFO, pctx);
600 * Check to make sure a directory entry doesn't contain any illegal
603 static int check_name(e2fsck_t ctx,
604 struct ext2_dir_entry *dirent,
605 struct problem_context *pctx)
611 for ( i = 0; i < ext2fs_dirent_name_len(dirent); i++) {
612 if (dirent->name[i] != '/' && dirent->name[i] != '\0')
615 fixup = fix_problem(ctx, PR_2_BAD_NAME, pctx);
618 dirent->name[i] = '.';
624 static int encrypted_check_name(e2fsck_t ctx,
625 const struct ext2_dir_entry *dirent,
626 struct problem_context *pctx)
628 if (ext2fs_dirent_name_len(dirent) < EXT4_CRYPTO_BLOCK_SIZE) {
629 if (fix_problem(ctx, PR_2_BAD_ENCRYPTED_NAME, pctx))
631 ext2fs_unmark_valid(ctx->fs);
636 static int encoded_check_name(e2fsck_t ctx,
637 struct ext2_dir_entry *dirent,
638 struct problem_context *pctx)
640 const struct ext2fs_nls_table *tbl = ctx->fs->encoding;
642 int len = ext2fs_dirent_name_len(dirent);
645 ret = ext2fs_check_encoded_name(tbl, dirent->name, len, &pos);
647 fatal_error(ctx, _("NLS is broken."));
649 ret = fix_problem(ctx, PR_2_BAD_ENCODED_NAME, pctx);
651 end = &dirent->name[len];
652 for (; *pos && pos != end; pos++)
657 return (ret || check_name(ctx, dirent, pctx));
661 * Check the directory filetype (if present)
663 static _INLINE_ int check_filetype(e2fsck_t ctx,
664 struct ext2_dir_entry *dirent,
665 ext2_ino_t dir_ino EXT2FS_ATTR((unused)),
666 struct problem_context *pctx)
668 int filetype = ext2fs_dirent_file_type(dirent);
669 int should_be = EXT2_FT_UNKNOWN;
671 struct ext2_inode inode;
674 if (ext2fs_has_feature_dirdata(ctx->fs->super)) {
675 dirdata = filetype & ~EXT2_FT_MASK;
676 filetype = filetype & EXT2_FT_MASK;
679 if (!ext2fs_has_feature_filetype(ctx->fs->super)) {
681 !fix_problem(ctx, PR_2_CLEAR_FILETYPE, pctx))
683 ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN);
687 if (ctx->inode_badness)
688 ext2fs_icount_fetch(ctx->inode_badness, dirent->inode,
691 if (ext2fs_test_inode_bitmap2(ctx->inode_dir_map, dirent->inode)) {
692 should_be = EXT2_FT_DIR;
693 } else if (ext2fs_test_inode_bitmap2(ctx->inode_reg_map,
695 should_be = EXT2_FT_REG_FILE;
696 } else if (badness & BADNESS_BAD_MODE) {
699 e2fsck_read_inode(ctx, dirent->inode, &inode,
701 should_be = ext2_file_type(inode.i_mode);
703 if (filetype == should_be)
705 pctx->num = should_be;
707 if (fix_problem(ctx, filetype ? PR_2_BAD_FILETYPE : PR_2_SET_FILETYPE,
710 ext2fs_dirent_set_file_type(dirent, should_be | dirdata);
714 static void parse_int_node(ext2_filsys fs,
715 struct ext2_db_entry2 *db,
716 struct check_dir_struct *cd,
717 struct dx_dir_info *dx_dir,
718 char *block_buf, int failed_csum)
720 struct ext2_dx_root_info *root;
721 struct ext2_dx_entry *ent;
722 struct ext2_dx_countlimit *limit;
723 struct dx_dirblock_info *dx_db;
724 int i, expect_limit, count;
726 ext2_dirhash_t min_hash = 0xffffffff;
727 ext2_dirhash_t max_hash = 0;
728 ext2_dirhash_t hash = 0, prev_hash;
731 if (db->blockcnt == 0) {
732 root = get_ext2_dx_root_info(fs, block_buf);
735 printf("Root node dump:\n");
736 printf("\t Reserved zero: %u\n", root->reserved_zero);
737 printf("\t Hash Version: %u\n", root->hash_version);
738 printf("\t Info length: %u\n", root->info_length);
739 printf("\t Indirect levels: %u\n", root->indirect_levels);
740 printf("\t Flags: %x\n", root->unused_flags);
742 ent = (struct ext2_dx_entry *)((char *)root +
746 (e2fsck_dir_will_be_rehashed(cd->ctx, cd->pctx.ino) ||
747 fix_problem(cd->ctx, PR_2_HTREE_ROOT_CSUM_INVALID,
751 ent = (struct ext2_dx_entry *)(block_buf + 8);
754 (e2fsck_dir_will_be_rehashed(cd->ctx, cd->pctx.ino) ||
755 fix_problem(cd->ctx, PR_2_HTREE_NODE_CSUM_INVALID,
759 limit = (struct ext2_dx_countlimit *)ent;
762 printf("Number of entries (count): %d\n",
763 ext2fs_le16_to_cpu(limit->count));
764 printf("Number of entries (limit): %d\n",
765 ext2fs_le16_to_cpu(limit->limit));
768 count = ext2fs_le16_to_cpu(limit->count);
769 if (ext2fs_has_feature_metadata_csum(fs->super))
770 csum_size = sizeof(struct ext2_dx_tail);
771 expect_limit = (fs->blocksize -
772 (csum_size + ((char *) ent - block_buf))) /
773 sizeof(struct ext2_dx_entry);
774 if (ext2fs_le16_to_cpu(limit->limit) != expect_limit) {
775 cd->pctx.num = ext2fs_le16_to_cpu(limit->limit);
776 if (fix_problem(cd->ctx, PR_2_HTREE_BAD_LIMIT, &cd->pctx))
779 if (count > expect_limit) {
780 cd->pctx.num = count;
781 if (fix_problem(cd->ctx, PR_2_HTREE_BAD_COUNT, &cd->pctx))
783 count = expect_limit;
786 for (i=0; i < count; i++) {
788 hash = i ? (ext2fs_le32_to_cpu(ent[i].hash) & ~1) : 0;
790 printf("Entry #%d: Hash 0x%08x, block %u\n", i,
791 hash, ext2fs_le32_to_cpu(ent[i].block));
793 blk = ext2fs_le32_to_cpu(ent[i].block) & EXT4_DX_BLOCK_MASK;
794 /* Check to make sure the block is valid */
795 if (blk >= dx_dir->numblocks) {
797 if (fix_problem(cd->ctx, PR_2_HTREE_BADBLK,
802 if (hash < prev_hash &&
803 fix_problem(cd->ctx, PR_2_HTREE_HASH_ORDER, &cd->pctx))
805 dx_db = &dx_dir->dx_block[blk];
806 if (dx_db->flags & DX_FLAG_REFERENCED) {
807 dx_db->flags |= DX_FLAG_DUP_REF;
809 dx_db->flags |= DX_FLAG_REFERENCED;
810 dx_db->parent = db->blockcnt;
814 i ? (ext2fs_le32_to_cpu(ent[i-1].block) &
815 EXT4_DX_BLOCK_MASK) : 0;
821 dx_db->node_min_hash = hash;
823 dx_db->node_max_hash =
824 ext2fs_le32_to_cpu(ent[i+1].hash) & ~1;
826 dx_db->node_max_hash = 0xfffffffe;
827 dx_db->flags |= DX_FLAG_LAST;
830 dx_db->flags |= DX_FLAG_FIRST;
833 printf("Blockcnt = %d, min hash 0x%08x, max hash 0x%08x\n",
834 db->blockcnt, min_hash, max_hash);
836 dx_db = &dx_dir->dx_block[db->blockcnt];
837 dx_db->min_hash = min_hash;
838 dx_db->max_hash = max_hash;
842 clear_htree(cd->ctx, cd->pctx.ino);
843 dx_dir->numblocks = 0;
844 e2fsck_rehash_dir_later(cd->ctx, cd->pctx.ino);
848 * Given a busted directory, try to salvage it somehow.
851 static void salvage_directory(ext2_filsys fs,
852 struct ext2_dir_entry *dirent,
853 struct ext2_dir_entry *prev,
854 unsigned int *offset,
855 unsigned int block_len,
858 char *cp = (char *) dirent;
860 unsigned int rec_len, prev_rec_len;
861 unsigned int name_len;
864 * If the space left for the entry is too small to be an entry,
865 * we can't access dirent's fields, so plumb in the values needed
866 * so that the previous entry absorbs this one.
868 if (block_len - *offset < EXT2_DIR_ENTRY_HEADER_LEN) {
870 rec_len = block_len - *offset;
872 name_len = ext2fs_dirent_name_len(dirent);
873 (void) ext2fs_get_rec_len(fs, dirent, &rec_len);
875 left = block_len - *offset - rec_len;
878 * Special case of directory entry of size 8: copy what's left
879 * of the directory block up to cover up the invalid hole.
881 if ((left >= ext2fs_dir_rec_len(1, hash_in_dirent)) &&
882 (rec_len == EXT2_DIR_ENTRY_HEADER_LEN)) {
883 memmove(cp, cp+EXT2_DIR_ENTRY_HEADER_LEN, left);
884 memset(cp + left, 0, EXT2_DIR_ENTRY_HEADER_LEN);
888 * If the directory entry overruns the end of the directory
889 * block, and the name is small enough to fit, then adjust the
893 ((int) rec_len + left > EXT2_DIR_ENTRY_HEADER_LEN) &&
894 ((int) ext2fs_dir_rec_len(name_len, hash_in_dirent) <= (int) rec_len + left) &&
895 dirent->inode <= fs->super->s_inodes_count &&
896 strnlen(dirent->name, name_len) == name_len) {
897 (void) ext2fs_set_rec_len(fs, (int) rec_len + left, dirent);
901 * If the record length of the directory entry is a multiple
902 * of four, and not too big, such that it is valid, let the
903 * previous directory entry absorb the invalid one.
905 if (prev && rec_len && (rec_len % 4) == 0 &&
906 (*offset + rec_len <= block_len)) {
907 (void) ext2fs_get_rec_len(fs, prev, &prev_rec_len);
908 prev_rec_len += rec_len;
909 (void) ext2fs_set_rec_len(fs, prev_rec_len, prev);
914 * Default salvage method --- kill all of the directory
915 * entries for the rest of the block. We will either try to
916 * absorb it into the previous directory entry, or create a
917 * new empty directory entry the rest of the directory block.
920 (void) ext2fs_get_rec_len(fs, prev, &prev_rec_len);
921 prev_rec_len += block_len - *offset;
922 (void) ext2fs_set_rec_len(fs, prev_rec_len, prev);
923 *offset = fs->blocksize;
925 rec_len = block_len - *offset;
926 (void) ext2fs_set_rec_len(fs, rec_len, dirent);
927 ext2fs_dirent_set_name_len(dirent, 0);
928 ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN);
933 static errcode_t insert_dirent_tail(ext2_filsys fs, void *dirbuf)
935 struct ext2_dir_entry *d;
937 struct ext2_dir_entry_tail *t;
940 top = EXT2_DIRENT_TAIL(dirbuf, fs->blocksize);
942 while (d->rec_len && !(d->rec_len & 0x3) && EXT2_NEXT_DIRENT(d) <= top)
943 d = EXT2_NEXT_DIRENT(d);
946 unsigned int min_size = EXT2_DIR_NAME_LEN(
947 ext2fs_dirent_name_len(dirbuf));
948 if (min_size > (char *)top - (char *)d)
949 return EXT2_ET_DIR_NO_SPACE_FOR_CSUM;
950 d->rec_len = (char *)top - (char *)d;
953 t = (struct ext2_dir_entry_tail *)top;
954 if (t->det_reserved_zero1 ||
955 t->det_rec_len != sizeof(struct ext2_dir_entry_tail) ||
956 t->det_reserved_name_len != EXT2_DIR_NAME_LEN_CSUM)
957 ext2fs_initialize_dirent_tail(fs, t);
962 static errcode_t fix_inline_dir_size(e2fsck_t ctx, ext2_ino_t ino,
963 size_t *inline_data_size,
964 struct problem_context *pctx,
967 ext2_filsys fs = ctx->fs;
968 struct ext2_inode inode;
969 size_t new_size, old_size;
972 old_size = *inline_data_size;
974 * If there's not enough bytes to start the "second" dir block
975 * (in the EA space) then truncate everything to the first block.
977 if (old_size > EXT4_MIN_INLINE_DATA_SIZE &&
978 old_size < EXT4_MIN_INLINE_DATA_SIZE +
979 EXT2_DIR_NAME_LEN(1)) {
980 old_size = EXT4_MIN_INLINE_DATA_SIZE;
983 /* Increase to the next four-byte boundary for salvaging */
984 new_size = old_size + (4 - (old_size & 3));
985 memset(buf + old_size, 0, new_size - old_size);
986 retval = ext2fs_inline_data_set(fs, ino, 0, buf, new_size);
987 if (retval == EXT2_ET_INLINE_DATA_NO_SPACE) {
988 /* Or we can't, so truncate. */
990 retval = ext2fs_inline_data_set(fs, ino, 0, buf, new_size);
992 if (fix_problem(ctx, PR_2_FIX_INLINE_DIR_FAILED,
1000 if (fix_problem(ctx, PR_2_FIX_INLINE_DIR_FAILED,
1009 retval = ext2fs_read_inode(fs, ino, &inode);
1013 retval = ext2fs_inode_size_set(fs, &inode, new_size);
1017 inode.i_flags &= ~EXT4_INLINE_DATA_FL;
1018 retval = ext2fs_write_inode(fs, ino, &inode);
1021 *inline_data_size = new_size;
1027 /* Return true if this type of file needs encryption */
1028 static int needs_encryption(e2fsck_t ctx, const struct ext2_dir_entry *dirent)
1030 int filetype = ext2fs_dirent_file_type(dirent);
1031 ext2_ino_t ino = dirent->inode;
1032 struct ext2_inode inode;
1034 if (filetype != EXT2_FT_UNKNOWN)
1035 return filetype == EXT2_FT_REG_FILE ||
1036 filetype == EXT2_FT_DIR ||
1037 filetype == EXT2_FT_SYMLINK;
1039 if (ext2fs_test_inode_bitmap2(ctx->inode_reg_map, ino) ||
1040 ext2fs_test_inode_bitmap2(ctx->inode_dir_map, ino))
1043 e2fsck_read_inode(ctx, ino, &inode, "check_encryption_policy");
1044 return LINUX_S_ISREG(inode.i_mode) ||
1045 LINUX_S_ISDIR(inode.i_mode) ||
1046 LINUX_S_ISLNK(inode.i_mode);
1050 * All regular files, directories, and symlinks in encrypted directories must be
1051 * encrypted using the same encryption policy as their directory.
1053 * Returns 1 if the dirent should be cleared, otherwise 0.
1055 static int check_encryption_policy(e2fsck_t ctx,
1056 const struct ext2_dir_entry *dirent,
1057 __u32 dir_encpolicy_id,
1058 struct problem_context *pctx)
1060 __u32 file_encpolicy_id = find_encryption_policy(ctx, dirent->inode);
1062 /* Same policy or both UNRECOGNIZED_ENCRYPTION_POLICY? */
1063 if (file_encpolicy_id == dir_encpolicy_id)
1066 if (file_encpolicy_id == NO_ENCRYPTION_POLICY) {
1067 if (!needs_encryption(ctx, dirent))
1069 return fix_problem(ctx, PR_2_UNENCRYPTED_FILE, pctx);
1072 return fix_problem(ctx, PR_2_INCONSISTENT_ENCRYPTION_POLICY, pctx);
1076 * Check an encrypted directory entry.
1078 * Returns 1 if the dirent should be cleared, otherwise 0.
1080 static int check_encrypted_dirent(e2fsck_t ctx,
1081 const struct ext2_dir_entry *dirent,
1082 __u32 dir_encpolicy_id,
1083 struct problem_context *pctx)
1085 if (encrypted_check_name(ctx, dirent, pctx))
1087 if (check_encryption_policy(ctx, dirent, dir_encpolicy_id, pctx))
1092 static int check_dir_block2(ext2_filsys fs,
1093 struct ext2_db_entry2 *db,
1097 struct check_dir_struct *cd = priv_data;
1099 if (cd->ra_entries && cd->list_offset >= cd->next_ra_off) {
1100 err = e2fsck_readahead_dblist(fs,
1101 E2FSCK_RA_DBLIST_IGNORE_BLOCKCNT,
1103 cd->list_offset + cd->ra_entries / 8,
1107 cd->next_ra_off = cd->list_offset + (cd->ra_entries * 7 / 8);
1110 err = check_dir_block(fs, db, priv_data);
1115 static int check_dir_block(ext2_filsys fs,
1116 struct ext2_db_entry2 *db,
1119 struct dx_dir_info *dx_dir;
1120 struct dx_dirblock_info *dx_db = 0;
1121 struct ext2_dir_entry *dirent, *prev, dot, dotdot;
1122 ext2_dirhash_t hash;
1123 unsigned int offset = 0;
1124 int dir_modified = 0;
1126 unsigned int rec_len;
1127 blk64_t block_nr = db->blk;
1128 ext2_ino_t ino = db->ino;
1129 ext2_ino_t subdir_parent;
1131 struct check_dir_struct *cd;
1135 struct ext2_dx_root_info *root;
1136 struct ext2_dx_countlimit *limit;
1137 static dict_t de_dict;
1138 struct problem_context pctx;
1141 int dx_csum_size = 0, de_csum_size = 0;
1142 int failed_csum = 0;
1144 size_t inline_data_size = 0;
1146 __u32 dir_encpolicy_id = NO_ENCRYPTION_POLICY;
1147 int hash_in_dirent = 0;
1149 size_t max_block_size;
1151 static char *eop_read_dirblock = NULL;
1154 cd = (struct check_dir_struct *) priv_data;
1155 ibuf = buf = cd->buf;
1158 /* We only want filename encoding verification on strict
1159 * mode or if explicitly requested by user. */
1160 if (ext2fs_test_inode_bitmap2(ctx->inode_casefold_map, ino) &&
1161 ((ctx->fs->super->s_encoding_flags & EXT4_ENC_STRICT_MODE_FL) ||
1162 (ctx->options & E2F_OPT_CHECK_ENCODING)))
1165 if (ctx->flags & E2F_FLAG_RUN_RETURN)
1166 return DIRENT_ABORT;
1168 if (ctx->progress && (ctx->progress)(ctx, 2, cd->count++, cd->max))
1169 return DIRENT_ABORT;
1171 if (ext2fs_has_feature_metadata_csum(fs->super)) {
1172 dx_csum_size = sizeof(struct ext2_dx_tail);
1173 de_csum_size = sizeof(struct ext2_dir_entry_tail);
1176 if (ext2fs_has_feature_filetype(fs->super))
1177 filetype = EXT2_FT_DIR << 8;
1180 * Make sure the inode is still in use (could have been
1181 * deleted in the duplicate/bad blocks pass.
1183 if (!(ext2fs_test_inode_bitmap2(ctx->inode_used_map, ino)))
1187 cd->pctx.blk = block_nr;
1188 cd->pctx.blkcount = db->blockcnt;
1190 cd->pctx.dirent = 0;
1193 if (ext2fs_has_feature_inline_data(fs->super)) {
1196 ec = ext2fs_inline_data_size(fs, ino, &inline_data_size);
1197 if (ec && ec != EXT2_ET_NO_INLINE_DATA)
1198 return DIRENT_ABORT;
1201 /* This will allow (at some point in the future) to punch out empty
1202 * directory blocks and reduce the space used by a directory that grows
1203 * very large and then the files are deleted. For now, all that is
1204 * needed is to avoid e2fsck filling in these holes as part of
1206 if (db->blk == 0 && ext2fs_has_feature_largedir(fs->super) &&
1207 !ext2fs_has_feature_inline_data(fs->super))
1210 if (db->blk == 0 && !inline_data_size) {
1211 if (allocate_dir_block(ctx, db, buf, &cd->pctx))
1221 if (ctx->dirs_to_hash &&
1222 ext2fs_u32_list_test(ctx->dirs_to_hash, ino))
1226 printf("In process_dir_block block %lu, #%d, inode %lu\n", block_nr,
1230 if (!eop_read_dirblock)
1231 eop_read_dirblock = (char *) _("reading directory block");
1232 ehandler_operation(eop_read_dirblock);
1233 if (inline_data_size) {
1234 memset(buf, 0, fs->blocksize - inline_data_size);
1235 cd->pctx.errcode = ext2fs_inline_data_get(fs, ino, 0, buf, 0);
1236 if (cd->pctx.errcode)
1237 goto inline_read_fail;
1238 #ifdef WORDS_BIGENDIAN
1240 goto skip_first_read_swab;
1241 *((__u32 *)buf) = ext2fs_le32_to_cpu(*((__u32 *)buf));
1242 cd->pctx.errcode = ext2fs_dirent_swab_in2(fs,
1243 buf + EXT4_INLINE_DATA_DOTDOT_SIZE,
1244 EXT4_MIN_INLINE_DATA_SIZE - EXT4_INLINE_DATA_DOTDOT_SIZE,
1246 if (cd->pctx.errcode)
1247 goto inline_read_fail;
1248 skip_first_read_swab:
1249 if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE ||
1251 goto inline_read_fail;
1252 cd->pctx.errcode = ext2fs_dirent_swab_in2(fs,
1253 buf + EXT4_MIN_INLINE_DATA_SIZE,
1254 inline_data_size - EXT4_MIN_INLINE_DATA_SIZE,
1258 cd->pctx.errcode = ext2fs_read_dir_block4(fs, block_nr,
1262 pctx.num = inline_data_size;
1263 if (((inline_data_size & 3) ||
1264 (inline_data_size > EXT4_MIN_INLINE_DATA_SIZE &&
1265 inline_data_size < EXT4_MIN_INLINE_DATA_SIZE +
1266 EXT2_DIR_NAME_LEN(1))) &&
1267 fix_problem(ctx, PR_2_BAD_INLINE_DIR_SIZE, &pctx)) {
1268 errcode_t err = fix_inline_dir_size(ctx, ino,
1269 &inline_data_size, &pctx,
1272 return DIRENT_ABORT;
1275 ehandler_operation(0);
1276 if (cd->pctx.errcode == EXT2_ET_DIR_CORRUPTED)
1277 cd->pctx.errcode = 0; /* We'll handle this ourselves */
1278 else if (cd->pctx.errcode == EXT2_ET_DIR_CSUM_INVALID) {
1279 cd->pctx.errcode = 0; /* We'll handle this ourselves */
1282 if (cd->pctx.errcode) {
1284 if (!fix_problem(ctx, PR_2_READ_DIRBLOCK, &cd->pctx)) {
1285 ctx->flags |= E2F_FLAG_ABORT;
1286 return DIRENT_ABORT;
1288 ext2fs_new_dir_block(fs, db->blockcnt == 0 ? ino : 0,
1289 EXT2_ROOT_INO, &buf2);
1290 memcpy(buf, buf2, fs->blocksize);
1291 ext2fs_free_mem(&buf2);
1293 dx_dir = e2fsck_get_dx_dir_info(ctx, ino);
1294 if (dx_dir && dx_dir->numblocks) {
1295 if (db->blockcnt >= dx_dir->numblocks) {
1297 if (fix_problem(ctx, PR_2_UNEXPECTED_HTREE_BLOCK,
1299 clear_htree(ctx, ino);
1300 dx_dir->numblocks = 0;
1304 fatal_error(ctx, _("Can not continue."));
1306 dx_db = &dx_dir->dx_block[db->blockcnt];
1307 dx_db->type = DX_DIRBLOCK_LEAF;
1308 dx_db->phys = block_nr;
1309 dx_db->min_hash = ~0;
1310 dx_db->max_hash = 0;
1312 dirent = (struct ext2_dir_entry *) buf;
1313 (void) ext2fs_get_rec_len(fs, dirent, &rec_len);
1314 limit = (struct ext2_dx_countlimit *) (buf+8);
1315 if (db->blockcnt == 0) {
1316 root = get_ext2_dx_root_info(fs, buf);
1317 dx_db->type = DX_DIRBLOCK_ROOT;
1318 dx_db->flags |= DX_FLAG_FIRST | DX_FLAG_LAST;
1320 /* large_dir was set in pass1 if large dirs were found,
1321 * so ext2_dir_htree_level() should now be correct */
1322 if ((root->reserved_zero ||
1323 root->info_length < 8 ||
1324 root->indirect_levels >=
1325 ext2_dir_htree_level(fs)) &&
1326 fix_problem(ctx, PR_2_HTREE_BAD_ROOT, &cd->pctx)) {
1327 clear_htree(ctx, ino);
1328 dx_dir->numblocks = 0;
1331 dx_dir->hashversion = root->hash_version;
1332 if ((dx_dir->hashversion <= EXT2_HASH_TEA) &&
1333 (fs->super->s_flags & EXT2_FLAGS_UNSIGNED_HASH))
1334 dx_dir->hashversion += 3;
1335 dx_dir->depth = root->indirect_levels + 1;
1336 } else if ((dirent->inode == 0) &&
1337 (rec_len == fs->blocksize) &&
1338 (ext2fs_dirent_name_len(dirent) == 0) &&
1339 (ext2fs_le16_to_cpu(limit->limit) ==
1340 ((fs->blocksize - (8 + dx_csum_size)) /
1341 sizeof(struct ext2_dx_entry)))) {
1342 dx_db->type = DX_DIRBLOCK_NODE;
1344 is_leaf = dx_db ? (dx_db->type == DX_DIRBLOCK_LEAF) : 0;
1348 /* Leaf node with no space for csum? Rebuild dirs in pass 3A. */
1349 if (is_leaf && !inline_data_size && failed_csum &&
1350 !ext2fs_dirent_has_tail(fs, (struct ext2_dir_entry *)buf)) {
1352 if (e2fsck_dir_will_be_rehashed(ctx, ino)) {
1356 if (!fix_problem(cd->ctx, PR_2_LEAF_NODE_MISSING_CSUM,
1359 e2fsck_rehash_dir_later(ctx, ino);
1363 /* htree nodes don't use fake dirents to store checksums */
1368 if (inline_data_size) {
1370 buf += EXT4_MIN_INLINE_DATA_SIZE;
1371 max_block_size = inline_data_size - EXT4_MIN_INLINE_DATA_SIZE;
1372 /* Zero-length second block, just exit */
1373 if (max_block_size == 0)
1376 max_block_size = EXT4_MIN_INLINE_DATA_SIZE;
1379 max_block_size = fs->blocksize - de_csum_size;
1381 dir_encpolicy_id = find_encryption_policy(ctx, ino);
1384 dict_init(&de_dict, DICTCOUNT_T_MAX, dict_de_cf_cmp);
1385 dict_set_cmp_context(&de_dict, (void *)ctx->fs->encoding);
1387 dict_init(&de_dict, DICTCOUNT_T_MAX, dict_de_cmp);
1389 if (ctx->casefolded_dirs)
1390 casefolded = ext2fs_u32_list_test(ctx->casefolded_dirs, ino);
1391 hash_in_dirent = (casefolded &&
1392 (dir_encpolicy_id != NO_ENCRYPTION_POLICY));
1397 ext2_ino_t first_unused_inode;
1398 unsigned int name_len;
1399 /* csum entry is not checked here, so don't worry about it */
1400 int extended = (dot_state > 1) && hash_in_dirent;
1401 int min_dir_len = ext2fs_dir_rec_len(1, extended);
1404 if (!inline_data_size || dot_state > 1) {
1405 dirent = (struct ext2_dir_entry *) (buf + offset);
1407 * If there's not even space for the entry header,
1408 * force salvaging this dir.
1410 if (max_block_size - offset < EXT2_DIR_ENTRY_HEADER_LEN)
1411 rec_len = ext2fs_dir_rec_len(1, extended);
1413 (void) ext2fs_get_rec_len(fs, dirent, &rec_len);
1414 cd->pctx.dirent = dirent;
1415 cd->pctx.num = offset;
1416 if ((offset + rec_len > max_block_size) ||
1417 (rec_len < min_dir_len) ||
1418 ((rec_len % 4) != 0) ||
1419 ((ext2fs_dir_rec_len(ext2fs_dirent_name_len(dirent),
1420 extended)) > rec_len)) {
1421 if (fix_problem(ctx, PR_2_DIR_CORRUPTED,
1423 #ifdef WORDS_BIGENDIAN
1425 * On big-endian systems, if the dirent
1426 * swap routine finds a rec_len that it
1427 * doesn't like, it continues
1428 * processing the block as if rec_len
1429 * == EXT2_DIR_ENTRY_HEADER_LEN. This means that the name
1430 * field gets byte swapped, which means
1431 * that salvage will not detect the
1432 * correct name length (unless the name
1433 * has a length that's an exact
1434 * multiple of four bytes), and it'll
1435 * discard the entry (unnecessarily)
1436 * and the rest of the dirent block.
1437 * Therefore, swap the rest of the
1438 * block back to disk order, run
1439 * salvage, and re-swap anything after
1440 * the salvaged dirent.
1442 int need_reswab = 0;
1443 if (rec_len < EXT2_DIR_ENTRY_HEADER_LEN || rec_len % 4) {
1445 ext2fs_dirent_swab_in2(fs,
1446 ((char *)dirent) + EXT2_DIR_ENTRY_HEADER_LEN,
1447 max_block_size - offset - EXT2_DIR_ENTRY_HEADER_LEN,
1451 salvage_directory(fs, dirent, prev,
1455 #ifdef WORDS_BIGENDIAN
1457 (void) ext2fs_get_rec_len(fs,
1459 ext2fs_dirent_swab_in2(fs,
1460 ((char *)dirent) + offset + rec_len,
1461 max_block_size - offset - rec_len,
1468 goto abort_free_dict;
1471 if (dot_state == 0) {
1472 memset(&dot, 0, sizeof(dot));
1474 dirent->inode = ino;
1475 dirent->rec_len = EXT2_DIR_NAME_LEN(1);
1476 dirent->name_len = 1 | filetype;
1477 dirent->name[0] = '.';
1478 } else if (dot_state == 1) {
1479 memset(&dotdot, 0, sizeof(dotdot));
1482 ((struct ext2_dir_entry *)buf)->inode;
1483 dirent->rec_len = EXT2_DIR_NAME_LEN(2);
1484 dirent->name_len = 2 | filetype;
1485 dirent->name[0] = '.';
1486 dirent->name[1] = '.';
1488 fatal_error(ctx, _("Can not continue."));
1490 cd->pctx.dirent = dirent;
1491 cd->pctx.num = offset;
1494 if (dot_state == 0) {
1495 if (check_dot(ctx, dirent, offset, ino, &cd->pctx))
1497 } else if (dot_state == 1) {
1498 ret = check_dotdot(ctx, dirent, offset, ino, &cd->pctx);
1500 goto abort_free_dict;
1503 } else if (dirent->inode == ino) {
1504 problem = PR_2_LINK_DOT;
1505 if (fix_problem(ctx, PR_2_LINK_DOT, &cd->pctx)) {
1514 ret = e2fsck_check_dirent_data(ctx, dirent, offset, &cd->pctx);
1519 * Make sure the inode listed is a legal one.
1521 name_len = ext2fs_dirent_name_len(dirent);
1522 if (((dirent->inode != EXT2_ROOT_INO) &&
1523 (dirent->inode < EXT2_FIRST_INODE(fs->super))) ||
1524 (dirent->inode > fs->super->s_inodes_count)) {
1525 problem = PR_2_BAD_INO;
1526 } else if (ctx->inode_bb_map &&
1527 (ext2fs_test_inode_bitmap2(ctx->inode_bb_map,
1530 * If the inode is in a bad block, offer to
1533 problem = PR_2_BB_INODE;
1534 } else if ((dot_state > 1) && (name_len == 1) &&
1535 (dirent->name[0] == '.')) {
1537 * If there's a '.' entry in anything other
1538 * than the first directory entry, it's a
1539 * duplicate entry that should be removed.
1541 problem = PR_2_DUP_DOT;
1542 } else if ((dot_state > 1) && (name_len == 2) &&
1543 (dirent->name[0] == '.') &&
1544 (dirent->name[1] == '.')) {
1546 * If there's a '..' entry in anything other
1547 * than the second directory entry, it's a
1548 * duplicate entry that should be removed.
1550 problem = PR_2_DUP_DOT_DOT;
1551 } else if ((dot_state > 1) &&
1552 (dirent->inode == EXT2_ROOT_INO)) {
1554 * Don't allow links to the root directory.
1555 * We check this specially to make sure we
1556 * catch this error case even if the root
1557 * directory hasn't been created yet.
1559 problem = PR_2_LINK_ROOT;
1560 } else if ((dot_state > 1) && (name_len == 0)) {
1562 * Don't allow zero-length directory names.
1564 problem = PR_2_NULL_NAME;
1568 if (fix_problem(ctx, problem, &cd->pctx)) {
1573 ext2fs_unmark_valid(fs);
1574 if (problem == PR_2_BAD_INO)
1579 group = ext2fs_group_of_ino(fs, dirent->inode);
1580 first_unused_inode = group * fs->super->s_inodes_per_group +
1581 1 + fs->super->s_inodes_per_group -
1582 ext2fs_bg_itable_unused(fs, group);
1583 cd->pctx.group = group;
1586 * Check if the inode was missed out because
1587 * _INODE_UNINIT flag was set or bg_itable_unused was
1588 * incorrect. If so, clear the _INODE_UNINIT flag and
1589 * restart e2fsck. In the future it would be nice if
1590 * we could call a function in pass1.c that checks the
1591 * newly visible inodes.
1593 if (ext2fs_bg_flags_test(fs, group, EXT2_BG_INODE_UNINIT)) {
1594 pctx.num = dirent->inode;
1595 if (fix_problem(ctx, PR_2_INOREF_BG_INO_UNINIT,
1597 ext2fs_bg_flags_clear(fs, group,
1598 EXT2_BG_INODE_UNINIT);
1599 ext2fs_mark_super_dirty(fs);
1600 ctx->flags |= E2F_FLAG_RESTART_LATER;
1602 ext2fs_unmark_valid(fs);
1603 if (problem == PR_2_BAD_INO)
1606 } else if (dirent->inode >= first_unused_inode) {
1607 pctx.num = dirent->inode;
1608 if (fix_problem(ctx, PR_2_INOREF_IN_UNUSED, &cd->pctx)){
1609 ext2fs_bg_itable_unused_set(fs, group, 0);
1610 ext2fs_mark_super_dirty(fs);
1611 ctx->flags |= E2F_FLAG_RESTART_LATER;
1613 ext2fs_unmark_valid(fs);
1614 if (problem == PR_2_BAD_INO)
1620 * If the inode was marked as having bad fields in
1621 * pass1, process it and offer to fix/clear it.
1622 * (We wait until now so that we can display the
1623 * pathname to the user.)
1625 if (!(ctx->flags & E2F_FLAG_RESTART_LATER) &&
1626 ctx->inode_badness &&
1627 ext2fs_icount_is_set(ctx->inode_badness, dirent->inode)) {
1628 if (e2fsck_process_bad_inode(ctx, ino, dirent->inode,
1629 buf + fs->blocksize)) {
1634 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1635 return DIRENT_ABORT;
1639 * Offer to clear unused inodes; if we are going to be
1640 * restarting the scan due to bg_itable_unused being
1641 * wrong, then don't clear any inodes to avoid zapping
1642 * inodes that were skipped during pass1 due to an
1643 * incorrect bg_itable_unused; we'll get any real
1644 * problems after we restart.
1646 if (!(ctx->flags & E2F_FLAG_RESTART_LATER) &&
1647 !(ext2fs_test_inode_bitmap2(ctx->inode_used_map,
1649 problem = PR_2_UNUSED_INODE;
1654 if (fix_problem_bad(ctx, problem, &cd->pctx, 0)) {
1659 ext2fs_unmark_valid(fs);
1660 if (problem == PR_2_BAD_INO)
1667 if (check_filetype(ctx, dirent, ino, &cd->pctx))
1670 if (dir_encpolicy_id != NO_ENCRYPTION_POLICY) {
1671 /* Encrypted directory */
1672 if (dot_state > 1 &&
1673 check_encrypted_dirent(ctx, dirent,
1680 } else if (cf_dir) {
1681 /* Casefolded directory */
1682 if (encoded_check_name(ctx, dirent, &cd->pctx))
1685 /* Unencrypted and uncasefolded directory */
1686 if (check_name(ctx, dirent, &cd->pctx))
1691 if (dx_dir->casefolded_hash)
1692 hash_flags = EXT4_CASEFOLD_FL;
1694 if (dx_dir->hashversion == EXT2_HASH_SIPHASH) {
1696 hash = EXT2_DIRENT_HASH(dirent);
1698 ext2fs_dirhash2(dx_dir->hashversion,
1700 ext2fs_dirent_name_len(dirent),
1701 fs->encoding, hash_flags,
1702 fs->super->s_hash_seed,
1705 if (hash < dx_db->min_hash)
1706 dx_db->min_hash = hash;
1707 if (hash > dx_db->max_hash)
1708 dx_db->max_hash = hash;
1712 * If this is a directory, then mark its parent in its
1713 * dir_info structure. If the parent field is already
1714 * filled in, then this directory has more than one
1715 * hard link. We assume the first link is correct,
1716 * and ask the user if he/she wants to clear this one.
1718 if ((dot_state > 1) &&
1719 (ext2fs_test_inode_bitmap2(ctx->inode_dir_map,
1721 if (e2fsck_dir_info_get_parent(ctx, dirent->inode,
1723 cd->pctx.ino = dirent->inode;
1724 fix_problem(ctx, PR_2_NO_DIRINFO, &cd->pctx);
1725 goto abort_free_dict;
1727 if (subdir_parent) {
1728 cd->pctx.ino2 = subdir_parent;
1729 if (fix_problem(ctx, PR_2_LINK_DIR,
1737 (void) e2fsck_dir_info_set_parent(ctx,
1738 dirent->inode, ino);
1744 } else if (dict_lookup(&de_dict, dirent)) {
1745 clear_problem_context(&pctx);
1747 pctx.dirent = dirent;
1748 fix_problem(ctx, PR_2_REPORT_DUP_DIRENT, &pctx);
1749 e2fsck_rehash_dir_later(ctx, ino);
1752 dict_alloc_insert(&de_dict, dirent, dirent);
1754 ext2fs_icount_increment(ctx->inode_count, dirent->inode,
1757 ctx->fs_links_count++;
1758 ctx->fs_total_count++;
1762 (void) ext2fs_get_rec_len(fs, dirent, &rec_len);
1763 if (!inline_data_size || dot_state > 1) {
1766 if (dot_state == 1) {
1769 * If we get here, we're checking an inline
1770 * directory and we've just checked a (fake)
1771 * dotdot entry that we created on the stack.
1772 * Therefore set 'prev' to NULL so that if we
1773 * call salvage_directory on the next entry,
1774 * it won't try to absorb the next entry into
1775 * the on-stack dotdot entry.
1781 } while (offset < max_block_size);
1787 printf("db_block %d, type %d, min_hash 0x%0x, max_hash 0x%0x\n",
1788 db->blockcnt, dx_db->type,
1789 dx_db->min_hash, dx_db->max_hash);
1791 cd->pctx.dir = cd->pctx.ino;
1792 if ((dx_db->type == DX_DIRBLOCK_ROOT) ||
1793 (dx_db->type == DX_DIRBLOCK_NODE))
1794 parse_int_node(fs, db, cd, dx_dir, buf, failed_csum);
1797 if (offset != max_block_size) {
1798 cd->pctx.num = rec_len + offset - max_block_size;
1799 if (fix_problem(ctx, PR_2_FINAL_RECLEN, &cd->pctx)) {
1800 dirent->rec_len = cd->pctx.num;
1805 int flags, will_rehash;
1806 /* leaf block with no tail? Rehash dirs later. */
1807 if (ext2fs_has_feature_metadata_csum(fs->super) &&
1809 !inline_data_size &&
1810 !ext2fs_dirent_has_tail(fs, (struct ext2_dir_entry *)buf)) {
1811 if (insert_dirent_tail(fs, buf) == 0)
1813 e2fsck_rehash_dir_later(ctx, ino);
1817 will_rehash = e2fsck_dir_will_be_rehashed(ctx, ino);
1819 flags = ctx->fs->flags;
1820 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
1822 if (inline_data_size) {
1824 #ifdef WORDS_BIGENDIAN
1826 goto skip_first_write_swab;
1827 *((__u32 *)buf) = ext2fs_le32_to_cpu(*((__u32 *)buf));
1828 cd->pctx.errcode = ext2fs_dirent_swab_out2(fs,
1829 buf + EXT4_INLINE_DATA_DOTDOT_SIZE,
1830 EXT4_MIN_INLINE_DATA_SIZE -
1831 EXT4_INLINE_DATA_DOTDOT_SIZE,
1833 if (cd->pctx.errcode)
1834 goto skip_second_write_swab;
1835 skip_first_write_swab:
1836 if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE ||
1838 goto skip_second_write_swab;
1839 cd->pctx.errcode = ext2fs_dirent_swab_out2(fs,
1840 buf + EXT4_MIN_INLINE_DATA_SIZE,
1842 EXT4_MIN_INLINE_DATA_SIZE,
1844 skip_second_write_swab:
1845 if (cd->pctx.errcode &&
1846 !fix_problem(ctx, PR_2_WRITE_DIRBLOCK, &cd->pctx))
1847 goto abort_free_dict;
1850 ext2fs_inline_data_set(fs, ino, 0, buf,
1853 cd->pctx.errcode = ext2fs_write_dir_block4(fs, block_nr,
1856 ctx->fs->flags = (flags &
1857 EXT2_FLAG_IGNORE_CSUM_ERRORS) |
1859 ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
1860 if (cd->pctx.errcode) {
1861 if (!fix_problem(ctx, PR_2_WRITE_DIRBLOCK,
1863 goto abort_free_dict;
1865 ext2fs_mark_changed(fs);
1866 } else if (is_leaf && failed_csum && !dir_modified) {
1868 * If a leaf node that fails csum makes it this far without
1869 * alteration, ask the user if the checksum should be fixed.
1871 if (fix_problem(ctx, PR_2_LEAF_NODE_ONLY_CSUM_INVALID,
1875 dict_free_nodes(&de_dict);
1878 ctx->flags |= E2F_FLAG_ABORT;
1879 dict_free_nodes(&de_dict);
1880 return DIRENT_ABORT;
1886 blk64_t last_cluster;
1890 * This function is called to deallocate a block, and is an interator
1891 * functioned called by deallocate inode via ext2fs_iterate_block().
1893 static int deallocate_inode_block(ext2_filsys fs,
1895 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1896 blk64_t ref_block EXT2FS_ATTR((unused)),
1897 int ref_offset EXT2FS_ATTR((unused)),
1900 struct del_block *p = priv_data;
1901 blk64_t cluster = EXT2FS_B2C(fs, *block_nr);
1906 if (cluster == p->last_cluster)
1909 p->last_cluster = cluster;
1910 if ((*block_nr < fs->super->s_first_data_block) ||
1911 (*block_nr >= ext2fs_blocks_count(fs->super)))
1914 ext2fs_block_alloc_stats2(fs, *block_nr, -1);
1920 * This function deallocates an inode
1922 static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf)
1924 ext2_filsys fs = ctx->fs;
1925 struct ext2_inode inode;
1926 struct problem_context pctx;
1928 struct del_block del_block;
1931 e2fsck_read_inode(ctx, ino, &inode, "deallocate_inode");
1932 /* ext2fs_block_iterate2() depends on the extents flags */
1933 if (inode.i_flags & EXT4_EXTENTS_FL)
1935 e2fsck_clear_inode(ctx, ino, &inode, 0, "deallocate_inode");
1937 inode.i_flags |= EXT4_EXTENTS_FL;
1938 e2fsck_write_inode(ctx, ino, &inode, "deallocate_inode");
1940 clear_problem_context(&pctx);
1944 * Fix up the bitmaps...
1946 e2fsck_read_bitmaps(ctx);
1947 ext2fs_inode_alloc_stats2(fs, ino, -1, LINUX_S_ISDIR(inode.i_mode));
1949 if (ext2fs_file_acl_block(fs, &inode) &&
1950 ext2fs_has_feature_xattr(fs->super)) {
1951 pctx.errcode = ext2fs_adjust_ea_refcount3(fs,
1952 ext2fs_file_acl_block(fs, &inode),
1953 block_buf, -1, &count, ino);
1954 if (pctx.errcode == EXT2_ET_BAD_EA_BLOCK_NUM) {
1959 pctx.blk = ext2fs_file_acl_block(fs, &inode);
1960 fix_problem(ctx, PR_2_ADJ_EA_REFCOUNT, &pctx);
1961 ctx->flags |= E2F_FLAG_ABORT;
1965 ext2fs_block_alloc_stats2(fs,
1966 ext2fs_file_acl_block(fs, &inode), -1);
1968 if (ctx->inode_badness)
1969 ext2fs_icount_store(ctx->inode_badness, ino, 0);
1970 ext2fs_file_acl_block_set(fs, &inode, 0);
1973 if (!ext2fs_inode_has_valid_blocks2(fs, &inode))
1976 /* Inline data inodes don't have blocks to iterate */
1977 if (inode.i_flags & EXT4_INLINE_DATA_FL)
1980 if (ext2fs_needs_large_file_feature(EXT2_I_SIZE(&inode))) {
1981 if (LINUX_S_ISREG(inode.i_mode))
1983 else if (LINUX_S_ISDIR(inode.i_mode))
1987 del_block.ctx = ctx;
1989 del_block.last_cluster = 0;
1990 pctx.errcode = ext2fs_block_iterate3(fs, ino, 0, block_buf,
1991 deallocate_inode_block,
1994 fix_problem(ctx, PR_2_DEALLOC_INODE, &pctx);
1995 ctx->flags |= E2F_FLAG_ABORT;
1999 /* Inode may have changed by block_iterate, so reread it */
2000 e2fsck_read_inode(ctx, ino, &inode, "deallocate_inode");
2001 e2fsck_clear_inode(ctx, ino, &inode, 0, "deallocate_inode");
2005 * This function clears the htree flag on an inode
2007 static void clear_htree(e2fsck_t ctx, ext2_ino_t ino)
2009 struct ext2_inode inode;
2011 e2fsck_read_inode(ctx, ino, &inode, "clear_htree");
2012 inode.i_flags = inode.i_flags & ~EXT2_INDEX_FL;
2013 e2fsck_write_inode(ctx, ino, &inode, "clear_htree");
2014 if (ctx->dirs_to_hash)
2015 ext2fs_u32_list_add(ctx->dirs_to_hash, ino);
2019 int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir,
2020 ext2_ino_t ino, char *buf)
2022 ext2_filsys fs = ctx->fs;
2023 struct ext2_inode inode;
2024 int inode_modified = 0;
2026 unsigned char *frag, *fsize;
2027 struct problem_context pctx;
2028 problem_t problem = 0;
2030 unsigned int flags = ctx->fs->flags;
2032 flags = ctx->fs->flags;
2033 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
2034 e2fsck_read_inode(ctx, ino, &inode, "process_bad_inode");
2035 ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
2036 (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
2038 clear_problem_context(&pctx);
2041 pctx.inode = &inode;
2043 if (ext2fs_file_acl_block(fs, &inode) &&
2044 !ext2fs_has_feature_xattr(fs->super)) {
2045 if (fix_problem(ctx, PR_2_FILE_ACL_ZERO, &pctx)) {
2046 ext2fs_file_acl_block_set(fs, &inode, 0);
2052 if (!LINUX_S_ISDIR(inode.i_mode) && !LINUX_S_ISREG(inode.i_mode) &&
2053 !LINUX_S_ISCHR(inode.i_mode) && !LINUX_S_ISBLK(inode.i_mode) &&
2054 !LINUX_S_ISLNK(inode.i_mode) && !LINUX_S_ISFIFO(inode.i_mode) &&
2055 !(LINUX_S_ISSOCK(inode.i_mode)))
2056 problem = PR_2_BAD_MODE;
2057 else if (LINUX_S_ISCHR(inode.i_mode)
2058 && !e2fsck_pass1_check_device_inode(fs, &inode))
2059 problem = PR_2_BAD_CHAR_DEV;
2060 else if (LINUX_S_ISBLK(inode.i_mode)
2061 && !e2fsck_pass1_check_device_inode(fs, &inode))
2062 problem = PR_2_BAD_BLOCK_DEV;
2063 else if (LINUX_S_ISFIFO(inode.i_mode)
2064 && !e2fsck_pass1_check_device_inode(fs, &inode))
2065 problem = PR_2_BAD_FIFO;
2066 else if (LINUX_S_ISSOCK(inode.i_mode)
2067 && !e2fsck_pass1_check_device_inode(fs, &inode))
2068 problem = PR_2_BAD_SOCKET;
2069 else if (LINUX_S_ISLNK(inode.i_mode) &&
2070 !e2fsck_pass1_check_symlink(ctx, ino, &inode, buf)) {
2071 problem = PR_2_INVALID_SYMLINK;
2075 if (fix_problem(ctx, problem, &pctx)) {
2076 deallocate_inode(ctx, ino, 0);
2077 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
2084 * A large value is associated with bad mode in order to detect
2085 * that mode was corrupt in check_filetype()
2087 e2fsck_mark_inode_bad_loc(ctx, &pctx, problem, BADNESS_BAD_MODE,
2088 __func__, __LINE__);
2091 if (inode.i_faddr) {
2092 if (fix_problem(ctx, PR_2_FADDR_ZERO, &pctx)) {
2099 switch (fs->super->s_creator_os) {
2101 frag = &inode.osd2.hurd2.h_i_frag;
2102 fsize = &inode.osd2.hurd2.h_i_fsize;
2107 if (frag && *frag) {
2109 if (fix_problem(ctx, PR_2_FRAG_ZERO, &pctx)) {
2116 if (fsize && *fsize) {
2118 if (fix_problem(ctx, PR_2_FSIZE_ZERO, &pctx)) {
2126 if ((fs->super->s_creator_os == EXT2_OS_LINUX) &&
2127 !ext2fs_has_feature_huge_file(fs->super) &&
2128 (inode.osd2.linux2.l_i_blocks_hi != 0)) {
2129 pctx.num = inode.osd2.linux2.l_i_blocks_hi;
2130 if (fix_problem(ctx, PR_2_BLOCKS_HI_ZERO, &pctx)) {
2131 inode.osd2.linux2.l_i_blocks_hi = 0;
2136 if ((fs->super->s_creator_os == EXT2_OS_LINUX) &&
2137 !ext2fs_has_feature_64bit(fs->super) &&
2138 inode.osd2.linux2.l_i_file_acl_high != 0) {
2139 pctx.num = inode.osd2.linux2.l_i_file_acl_high;
2140 if (fix_problem(ctx, PR_2_I_FILE_ACL_HI_ZERO, &pctx)) {
2141 inode.osd2.linux2.l_i_file_acl_high = 0;
2147 if (ext2fs_file_acl_block(fs, &inode) &&
2148 ((ext2fs_file_acl_block(fs, &inode) < fs->super->s_first_data_block) ||
2149 (ext2fs_file_acl_block(fs, &inode) >= ext2fs_blocks_count(fs->super)))) {
2150 if (fix_problem(ctx, PR_2_FILE_ACL_BAD, &pctx)) {
2151 ext2fs_file_acl_block_set(fs, &inode, 0);
2156 if (inode.i_size_high && !ext2fs_has_feature_largedir(fs->super) &&
2157 inode.i_blocks < 1ULL << (29 - EXT2_BLOCK_SIZE_BITS(fs->super)) &&
2158 LINUX_S_ISDIR(inode.i_mode)) {
2159 if (fix_problem(ctx, PR_2_DIR_SIZE_HIGH_ZERO, &pctx)) {
2160 inode.i_size_high = 0;
2166 /* The high value from BADNESS_BAD_MODE should not delete the inode */
2167 if (e2fsck_fix_bad_inode(ctx, &pctx)) {
2168 deallocate_inode(ctx, ino, 0);
2169 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
2177 e2fsck_write_inode(ctx, ino, &inode, "process_bad_inode");
2182 * allocate_dir_block --- this function allocates a new directory
2183 * block for a particular inode; this is done if a directory has
2184 * a "hole" in it, or if a directory has a illegal block number
2185 * that was zeroed out and now needs to be replaced.
2187 static int allocate_dir_block(e2fsck_t ctx,
2188 struct ext2_db_entry2 *db,
2189 char *buf EXT2FS_ATTR((unused)),
2190 struct problem_context *pctx)
2192 ext2_filsys fs = ctx->fs;
2195 struct ext2_inode inode;
2197 if (fix_problem_bad(ctx, PR_2_DIRECTORY_HOLE, pctx, 0) == 0)
2201 * Read the inode and block bitmaps in; we'll be messing with
2204 e2fsck_read_bitmaps(ctx);
2207 * First, find a free block
2209 e2fsck_read_inode(ctx, db->ino, &inode, "allocate_dir_block");
2210 pctx->errcode = ext2fs_map_cluster_block(fs, db->ino, &inode,
2211 db->blockcnt, &blk);
2212 if (pctx->errcode || blk == 0) {
2213 blk = ext2fs_find_inode_goal(fs, db->ino, &inode, db->blockcnt);
2214 pctx->errcode = ext2fs_new_block2(fs, blk,
2215 ctx->block_found_map, &blk);
2216 if (pctx->errcode) {
2217 pctx->str = "ext2fs_new_block";
2218 fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
2222 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
2223 ext2fs_mark_block_bitmap2(fs->block_map, blk);
2224 ext2fs_mark_bb_dirty(fs);
2227 * Now let's create the actual data block for the inode
2230 pctx->errcode = ext2fs_new_dir_block(fs, 0, 0, &block);
2232 pctx->errcode = ext2fs_new_dir_block(fs, db->ino,
2233 EXT2_ROOT_INO, &block);
2235 if (pctx->errcode) {
2236 pctx->str = "ext2fs_new_dir_block";
2237 fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
2241 pctx->errcode = ext2fs_write_dir_block4(fs, blk, block, 0, db->ino);
2242 ext2fs_free_mem(&block);
2243 if (pctx->errcode) {
2244 pctx->str = "ext2fs_write_dir_block";
2245 fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
2250 * Update the inode block count
2252 ext2fs_iblk_add_blocks(fs, &inode, 1);
2253 if (EXT2_I_SIZE(&inode) < ((__u64) db->blockcnt+1) * fs->blocksize) {
2254 pctx->errcode = ext2fs_inode_size_set(fs, &inode,
2255 (db->blockcnt+1) * fs->blocksize);
2256 if (pctx->errcode) {
2257 pctx->str = "ext2fs_inode_size_set";
2258 fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
2262 e2fsck_write_inode(ctx, db->ino, &inode, "allocate_dir_block");
2265 * Finally, update the block pointers for the inode
2268 pctx->errcode = ext2fs_bmap2(fs, db->ino, &inode, 0, BMAP_SET,
2269 db->blockcnt, 0, &blk);
2270 if (pctx->errcode) {
2271 pctx->str = "ext2fs_block_iterate";
2272 fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);