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Commit | Line | Data |
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3839e657 TT |
1 | /* |
2 | * pass2.c --- check directory structure | |
efc6f628 | 3 | * |
21c84b71 TT |
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% | |
efc6f628 | 10 | * |
3839e657 TT |
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) | |
efc6f628 | 19 | * should be less than (rec_len - 8). |
3839e657 TT |
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 | |
3839e657 TT |
38 | * |
39 | * Pass 2 frees the following data structures | |
40 | * - The inode_bad_map bitmap | |
aa4115a4 | 41 | * - The inode_reg_map bitmap |
3839e657 TT |
42 | */ |
43 | ||
b969b1b8 | 44 | #define _GNU_SOURCE 1 /* get strnlen() */ |
d1154eb4 | 45 | #include "config.h" |
48e6e813 TT |
46 | #include <string.h> |
47 | ||
3839e657 | 48 | #include "e2fsck.h" |
21c84b71 | 49 | #include "problem.h" |
3dca12fb | 50 | #include "support/dict.h" |
3839e657 | 51 | |
aa4115a4 TT |
52 | #ifdef NO_INLINE_FUNCS |
53 | #define _INLINE_ | |
54 | #else | |
55 | #define _INLINE_ inline | |
56 | #endif | |
57 | ||
ad4fa466 | 58 | /* #define DX_DEBUG */ |
8fdc9985 | 59 | |
3839e657 TT |
60 | /* |
61 | * Keeps track of how many times an inode is referenced. | |
62 | */ | |
4035f40b | 63 | static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf); |
a5abfe03 DW |
64 | static int check_dir_block2(ext2_filsys fs, |
65 | struct ext2_db_entry2 *dir_blocks_info, | |
66 | void *priv_data); | |
3839e657 | 67 | static int check_dir_block(ext2_filsys fs, |
6dc64392 | 68 | struct ext2_db_entry2 *dir_blocks_info, |
54dc7ca2 | 69 | void *priv_data); |
1b6bf175 | 70 | static int allocate_dir_block(e2fsck_t ctx, |
6dc64392 | 71 | struct ext2_db_entry2 *dir_blocks_info, |
21c84b71 | 72 | char *buf, struct problem_context *pctx); |
8fdc9985 | 73 | static void clear_htree(e2fsck_t ctx, ext2_ino_t ino); |
ad4fa466 TT |
74 | static int htree_depth(struct dx_dir_info *dx_dir, |
75 | struct dx_dirblock_info *dx_db); | |
ea1959f0 | 76 | static EXT2_QSORT_TYPE special_dir_block_cmp(const void *a, const void *b); |
3839e657 | 77 | |
21c84b71 TT |
78 | struct check_dir_struct { |
79 | char *buf; | |
80 | struct problem_context pctx; | |
f8188fff | 81 | int count, max; |
1b6bf175 | 82 | e2fsck_t ctx; |
a5abfe03 DW |
83 | unsigned long long list_offset; |
84 | unsigned long long ra_entries; | |
85 | unsigned long long next_ra_off; | |
efc6f628 | 86 | }; |
21c84b71 | 87 | |
ae9efd05 AB |
88 | static void update_parents(struct dx_dir_info *dx_dir, int type) |
89 | { | |
90 | struct dx_dirblock_info *dx_db, *dx_parent, *dx_previous; | |
91 | int b; | |
92 | ||
93 | for (b = 0, dx_db = dx_dir->dx_block; | |
94 | b < dx_dir->numblocks; | |
95 | b++, dx_db++) { | |
96 | dx_parent = &dx_dir->dx_block[dx_db->parent]; | |
97 | if (dx_db->type != type) | |
98 | continue; | |
99 | ||
100 | /* | |
101 | * XXX Make sure dx_parent->min_hash > dx_db->min_hash | |
102 | */ | |
103 | if (dx_db->flags & DX_FLAG_FIRST) { | |
104 | dx_parent->min_hash = dx_db->min_hash; | |
105 | if (dx_parent->previous) { | |
106 | dx_previous = | |
107 | &dx_dir->dx_block[dx_parent->previous]; | |
108 | dx_previous->node_max_hash = | |
109 | dx_parent->min_hash; | |
110 | } | |
111 | } | |
112 | /* | |
113 | * XXX Make sure dx_parent->max_hash < dx_db->max_hash | |
114 | */ | |
115 | if (dx_db->flags & DX_FLAG_LAST) { | |
116 | dx_parent->max_hash = dx_db->max_hash; | |
117 | } | |
118 | } | |
119 | } | |
120 | ||
08b21301 | 121 | void e2fsck_pass2(e2fsck_t ctx) |
3839e657 | 122 | { |
a4742691 TT |
123 | struct ext2_super_block *sb = ctx->fs->super; |
124 | struct problem_context pctx; | |
125 | ext2_filsys fs = ctx->fs; | |
686994eb | 126 | char *buf = NULL; |
8bf191e8 | 127 | #ifdef RESOURCE_TRACK |
3839e657 | 128 | struct resource_track rtrack; |
8bf191e8 | 129 | #endif |
21c84b71 | 130 | struct check_dir_struct cd; |
8fdc9985 | 131 | struct dx_dir_info *dx_dir; |
ac3256fd | 132 | struct dx_dirblock_info *dx_db; |
54434927 | 133 | int b; |
ad4fa466 | 134 | int i, depth; |
8fdc9985 TT |
135 | problem_t code; |
136 | int bad_dir; | |
a5abfe03 DW |
137 | int (*check_dir_func)(ext2_filsys fs, |
138 | struct ext2_db_entry2 *dir_blocks_info, | |
139 | void *priv_data); | |
8fdc9985 | 140 | |
6d96b00d | 141 | init_resource_track(&rtrack, ctx->fs->io); |
1b6bf175 TT |
142 | clear_problem_context(&cd.pctx); |
143 | ||
3839e657 TT |
144 | #ifdef MTRACE |
145 | mtrace_print("Pass 2"); | |
146 | #endif | |
147 | ||
1b6bf175 TT |
148 | if (!(ctx->options & E2F_OPT_PREEN)) |
149 | fix_problem(ctx, PR_2_PASS_HEADER, &cd.pctx); | |
150 | ||
749f0712 TT |
151 | cd.pctx.errcode = e2fsck_setup_icount(ctx, "inode_count", |
152 | EXT2_ICOUNT_OPT_INCREMENT, | |
153 | ctx->inode_link_info, &ctx->inode_count); | |
1b6bf175 TT |
154 | if (cd.pctx.errcode) { |
155 | fix_problem(ctx, PR_2_ALLOCATE_ICOUNT, &cd.pctx); | |
08b21301 | 156 | ctx->flags |= E2F_FLAG_ABORT; |
a54733d2 | 157 | goto cleanup; |
21c84b71 | 158 | } |
bcf9c5d4 | 159 | buf = (char *) e2fsck_allocate_memory(ctx, 2*fs->blocksize, |
54dc7ca2 | 160 | "directory scan buffer"); |
3839e657 | 161 | |
21c84b71 TT |
162 | /* |
163 | * Set up the parent pointer for the root directory, if | |
164 | * present. (If the root directory is not present, we will | |
165 | * create it in pass 3.) | |
166 | */ | |
28db82a8 | 167 | (void) e2fsck_dir_info_set_parent(ctx, EXT2_ROOT_INO, EXT2_ROOT_INO); |
21c84b71 TT |
168 | |
169 | cd.buf = buf; | |
1b6bf175 | 170 | cd.ctx = ctx; |
f75c28de | 171 | cd.count = 1; |
6dc64392 | 172 | cd.max = ext2fs_dblist_count2(fs->dblist); |
a5abfe03 DW |
173 | cd.list_offset = 0; |
174 | cd.ra_entries = ctx->readahead_kb * 1024 / ctx->fs->blocksize; | |
175 | cd.next_ra_off = 0; | |
f75c28de TT |
176 | |
177 | if (ctx->progress) | |
178 | (void) (ctx->progress)(ctx, 2, 0, cd.max); | |
ea1959f0 | 179 | |
86f3b6cf | 180 | if (ext2fs_has_feature_dir_index(fs->super)) |
6dc64392 | 181 | ext2fs_dblist_sort2(fs->dblist, special_dir_block_cmp); |
efc6f628 | 182 | |
a5abfe03 DW |
183 | check_dir_func = cd.ra_entries ? check_dir_block2 : check_dir_block; |
184 | cd.pctx.errcode = ext2fs_dblist_iterate2(fs->dblist, check_dir_func, | |
6dc64392 | 185 | &cd); |
6267ee49 AD |
186 | if (ctx->flags & E2F_FLAG_RESTART_LATER) { |
187 | ctx->flags |= E2F_FLAG_RESTART; | |
db3d8718 | 188 | ctx->flags &= ~E2F_FLAG_RESTART_LATER; |
6267ee49 AD |
189 | } |
190 | ||
db3d8718 | 191 | if (ctx->flags & E2F_FLAG_RUN_RETURN) |
a54733d2 | 192 | goto cleanup; |
db3d8718 | 193 | |
1b6bf175 TT |
194 | if (cd.pctx.errcode) { |
195 | fix_problem(ctx, PR_2_DBLIST_ITERATE, &cd.pctx); | |
08b21301 | 196 | ctx->flags |= E2F_FLAG_ABORT; |
a54733d2 | 197 | goto cleanup; |
7ac02a5e | 198 | } |
8fdc9985 | 199 | |
8fdc9985 | 200 | for (i=0; (dx_dir = e2fsck_dx_dir_info_iter(ctx, &i)) != 0;) { |
4cae0452 | 201 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK) |
a54733d2 | 202 | goto cleanup; |
d02d0195 DW |
203 | if (e2fsck_dir_will_be_rehashed(ctx, dx_dir->ino) || |
204 | dx_dir->numblocks == 0) | |
8fdc9985 TT |
205 | continue; |
206 | clear_problem_context(&pctx); | |
207 | bad_dir = 0; | |
208 | pctx.dir = dx_dir->ino; | |
209 | dx_db = dx_dir->dx_block; | |
210 | if (dx_db->flags & DX_FLAG_REFERENCED) | |
211 | dx_db->flags |= DX_FLAG_DUP_REF; | |
212 | else | |
213 | dx_db->flags |= DX_FLAG_REFERENCED; | |
214 | /* | |
215 | * Find all of the first and last leaf blocks, and | |
216 | * update their parent's min and max hash values | |
217 | */ | |
ae9efd05 AB |
218 | update_parents(dx_dir, DX_DIRBLOCK_LEAF); |
219 | ||
220 | /* for 3 level htree: update 2 level parent's min | |
221 | * and max hash values */ | |
222 | update_parents(dx_dir, DX_DIRBLOCK_NODE); | |
efc6f628 | 223 | |
8fdc9985 TT |
224 | for (b=0, dx_db = dx_dir->dx_block; |
225 | b < dx_dir->numblocks; | |
226 | b++, dx_db++) { | |
227 | pctx.blkcount = b; | |
228 | pctx.group = dx_db->parent; | |
229 | code = 0; | |
230 | if (!(dx_db->flags & DX_FLAG_FIRST) && | |
231 | (dx_db->min_hash < dx_db->node_min_hash)) { | |
232 | pctx.blk = dx_db->min_hash; | |
233 | pctx.blk2 = dx_db->node_min_hash; | |
234 | code = PR_2_HTREE_MIN_HASH; | |
235 | fix_problem(ctx, code, &pctx); | |
236 | bad_dir++; | |
237 | } | |
ad4fa466 TT |
238 | if (dx_db->type == DX_DIRBLOCK_LEAF) { |
239 | depth = htree_depth(dx_dir, dx_db); | |
240 | if (depth != dx_dir->depth) { | |
e5e12db9 | 241 | pctx.num = dx_dir->depth; |
ad4fa466 TT |
242 | code = PR_2_HTREE_BAD_DEPTH; |
243 | fix_problem(ctx, code, &pctx); | |
244 | bad_dir++; | |
245 | } | |
246 | } | |
8fdc9985 | 247 | /* |
efc6f628 | 248 | * This test doesn't apply for the root block |
8fdc9985 TT |
249 | * at block #0 |
250 | */ | |
251 | if (b && | |
252 | (dx_db->max_hash > dx_db->node_max_hash)) { | |
253 | pctx.blk = dx_db->max_hash; | |
254 | pctx.blk2 = dx_db->node_max_hash; | |
255 | code = PR_2_HTREE_MAX_HASH; | |
256 | fix_problem(ctx, code, &pctx); | |
503f9e7f | 257 | bad_dir++; |
8fdc9985 TT |
258 | } |
259 | if (!(dx_db->flags & DX_FLAG_REFERENCED)) { | |
260 | code = PR_2_HTREE_NOTREF; | |
261 | fix_problem(ctx, code, &pctx); | |
262 | bad_dir++; | |
263 | } else if (dx_db->flags & DX_FLAG_DUP_REF) { | |
264 | code = PR_2_HTREE_DUPREF; | |
265 | fix_problem(ctx, code, &pctx); | |
266 | bad_dir++; | |
267 | } | |
8fdc9985 TT |
268 | } |
269 | if (bad_dir && fix_problem(ctx, PR_2_HTREE_CLEAR, &pctx)) { | |
270 | clear_htree(ctx, dx_dir->ino); | |
62acaa1d | 271 | dx_dir->numblocks = 0; |
8fdc9985 | 272 | } |
8fdc9985 | 273 | } |
23f75f6e | 274 | e2fsck_free_dx_dir_info(ctx); |
149640fa | 275 | |
c4e3d3f3 | 276 | ext2fs_free_mem(&buf); |
21c84b71 TT |
277 | ext2fs_free_dblist(fs->dblist); |
278 | ||
1b6bf175 TT |
279 | if (ctx->inode_bad_map) { |
280 | ext2fs_free_inode_bitmap(ctx->inode_bad_map); | |
281 | ctx->inode_bad_map = 0; | |
3839e657 | 282 | } |
aa4115a4 TT |
283 | if (ctx->inode_reg_map) { |
284 | ext2fs_free_inode_bitmap(ctx->inode_reg_map); | |
285 | ctx->inode_reg_map = 0; | |
286 | } | |
dbff534e TT |
287 | if (ctx->encrypted_dirs) { |
288 | ext2fs_u32_list_free(ctx->encrypted_dirs); | |
289 | ctx->encrypted_dirs = 0; | |
290 | } | |
a4742691 TT |
291 | |
292 | clear_problem_context(&pctx); | |
293 | if (ctx->large_files) { | |
86f3b6cf | 294 | if (!ext2fs_has_feature_large_file(sb) && |
a4742691 | 295 | fix_problem(ctx, PR_2_FEATURE_LARGE_FILES, &pctx)) { |
86f3b6cf | 296 | ext2fs_set_feature_large_file(sb); |
0cfce7f7 | 297 | fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; |
a4742691 TT |
298 | ext2fs_mark_super_dirty(fs); |
299 | } | |
300 | if (sb->s_rev_level == EXT2_GOOD_OLD_REV && | |
301 | fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) { | |
302 | ext2fs_update_dynamic_rev(fs); | |
303 | ext2fs_mark_super_dirty(fs); | |
304 | } | |
a4742691 | 305 | } |
efc6f628 | 306 | |
9facd076 | 307 | print_resource_track(ctx, _("Pass 2"), &rtrack, fs->io); |
a54733d2 TT |
308 | cleanup: |
309 | ext2fs_free_mem(&buf); | |
3839e657 TT |
310 | } |
311 | ||
ad4fa466 TT |
312 | #define MAX_DEPTH 32000 |
313 | static int htree_depth(struct dx_dir_info *dx_dir, | |
314 | struct dx_dirblock_info *dx_db) | |
315 | { | |
316 | int depth = 0; | |
317 | ||
318 | while (dx_db->type != DX_DIRBLOCK_ROOT && depth < MAX_DEPTH) { | |
319 | dx_db = &dx_dir->dx_block[dx_db->parent]; | |
320 | depth++; | |
321 | } | |
322 | return depth; | |
323 | } | |
324 | ||
0926668d TT |
325 | static int dict_de_cmp(const void *a, const void *b) |
326 | { | |
520ead37 | 327 | const struct ext2_dir_entry *de_a, *de_b; |
0926668d TT |
328 | int a_len, b_len; |
329 | ||
520ead37 | 330 | de_a = (const struct ext2_dir_entry *) a; |
70f4632b | 331 | a_len = ext2fs_dirent_name_len(de_a); |
520ead37 | 332 | de_b = (const struct ext2_dir_entry *) b; |
70f4632b | 333 | b_len = ext2fs_dirent_name_len(de_b); |
0926668d TT |
334 | |
335 | if (a_len != b_len) | |
336 | return (a_len - b_len); | |
337 | ||
baa14bd1 | 338 | return memcmp(de_a->name, de_b->name, a_len); |
0926668d | 339 | } |
ad4fa466 | 340 | |
ea1959f0 TT |
341 | /* |
342 | * This is special sort function that makes sure that directory blocks | |
343 | * with a dirblock of zero are sorted to the beginning of the list. | |
344 | * This guarantees that the root node of the htree directories are | |
345 | * processed first, so we know what hash version to use. | |
346 | */ | |
347 | static EXT2_QSORT_TYPE special_dir_block_cmp(const void *a, const void *b) | |
348 | { | |
6dc64392 VAH |
349 | const struct ext2_db_entry2 *db_a = |
350 | (const struct ext2_db_entry2 *) a; | |
351 | const struct ext2_db_entry2 *db_b = | |
352 | (const struct ext2_db_entry2 *) b; | |
ea1959f0 TT |
353 | |
354 | if (db_a->blockcnt && !db_b->blockcnt) | |
355 | return 1; | |
356 | ||
357 | if (!db_a->blockcnt && db_b->blockcnt) | |
358 | return -1; | |
efc6f628 | 359 | |
ea1959f0 TT |
360 | if (db_a->blk != db_b->blk) |
361 | return (int) (db_a->blk - db_b->blk); | |
efc6f628 | 362 | |
ea1959f0 TT |
363 | if (db_a->ino != db_b->ino) |
364 | return (int) (db_a->ino - db_b->ino); | |
365 | ||
366 | return (int) (db_a->blockcnt - db_b->blockcnt); | |
367 | } | |
368 | ||
369 | ||
3839e657 TT |
370 | /* |
371 | * Make sure the first entry in the directory is '.', and that the | |
372 | * directory entry is sane. | |
373 | */ | |
1b6bf175 | 374 | static int check_dot(e2fsck_t ctx, |
3839e657 | 375 | struct ext2_dir_entry *dirent, |
86c627ec | 376 | ext2_ino_t ino, struct problem_context *pctx) |
3839e657 TT |
377 | { |
378 | struct ext2_dir_entry *nextdir; | |
8a480350 | 379 | unsigned int rec_len, new_len; |
3c7c6d73 TT |
380 | int status = 0; |
381 | int created = 0; | |
382 | problem_t problem = 0; | |
efc6f628 | 383 | |
21c84b71 TT |
384 | if (!dirent->inode) |
385 | problem = PR_2_MISSING_DOT; | |
70f4632b | 386 | else if ((ext2fs_dirent_name_len(dirent) != 1) || |
21c84b71 TT |
387 | (dirent->name[0] != '.')) |
388 | problem = PR_2_1ST_NOT_DOT; | |
389 | else if (dirent->name[1] != '\0') | |
390 | problem = PR_2_DOT_NULL_TERM; | |
5dd77dbe | 391 | |
8a480350 | 392 | (void) ext2fs_get_rec_len(ctx->fs, dirent, &rec_len); |
21c84b71 | 393 | if (problem) { |
1b6bf175 | 394 | if (fix_problem(ctx, problem, pctx)) { |
5dd77dbe TT |
395 | if (rec_len < 12) |
396 | rec_len = dirent->rec_len = 12; | |
3839e657 | 397 | dirent->inode = ino; |
70f4632b JK |
398 | ext2fs_dirent_set_name_len(dirent, 1); |
399 | ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN); | |
3839e657 | 400 | dirent->name[0] = '.'; |
21c84b71 | 401 | dirent->name[1] = '\0'; |
3839e657 TT |
402 | status = 1; |
403 | created = 1; | |
3839e657 TT |
404 | } |
405 | } | |
3839e657 | 406 | if (dirent->inode != ino) { |
1b6bf175 | 407 | if (fix_problem(ctx, PR_2_BAD_INODE_DOT, pctx)) { |
3839e657 TT |
408 | dirent->inode = ino; |
409 | status = 1; | |
21c84b71 | 410 | } |
3839e657 | 411 | } |
5dd77dbe TT |
412 | if (rec_len > 12) { |
413 | new_len = rec_len - 12; | |
3839e657 | 414 | if (new_len > 12) { |
3839e657 | 415 | if (created || |
f8188fff | 416 | fix_problem(ctx, PR_2_SPLIT_DOT, pctx)) { |
3839e657 TT |
417 | nextdir = (struct ext2_dir_entry *) |
418 | ((char *) dirent + 12); | |
419 | dirent->rec_len = 12; | |
8a480350 TT |
420 | (void) ext2fs_set_rec_len(ctx->fs, new_len, |
421 | nextdir); | |
3839e657 | 422 | nextdir->inode = 0; |
70f4632b JK |
423 | ext2fs_dirent_set_name_len(nextdir, 0); |
424 | ext2fs_dirent_set_file_type(nextdir, | |
425 | EXT2_FT_UNKNOWN); | |
3839e657 TT |
426 | status = 1; |
427 | } | |
428 | } | |
429 | } | |
430 | return status; | |
431 | } | |
432 | ||
433 | /* | |
434 | * Make sure the second entry in the directory is '..', and that the | |
435 | * directory entry is sane. We do not check the inode number of '..' | |
436 | * here; this gets done in pass 3. | |
437 | */ | |
1b6bf175 | 438 | static int check_dotdot(e2fsck_t ctx, |
3839e657 | 439 | struct ext2_dir_entry *dirent, |
28db82a8 | 440 | ext2_ino_t ino, struct problem_context *pctx) |
3839e657 | 441 | { |
3c7c6d73 | 442 | problem_t problem = 0; |
cf5301d7 | 443 | unsigned int rec_len; |
efc6f628 | 444 | |
21c84b71 TT |
445 | if (!dirent->inode) |
446 | problem = PR_2_MISSING_DOT_DOT; | |
70f4632b | 447 | else if ((ext2fs_dirent_name_len(dirent) != 2) || |
21c84b71 TT |
448 | (dirent->name[0] != '.') || |
449 | (dirent->name[1] != '.')) | |
450 | problem = PR_2_2ND_NOT_DOT_DOT; | |
451 | else if (dirent->name[2] != '\0') | |
452 | problem = PR_2_DOT_DOT_NULL_TERM; | |
453 | ||
8a480350 | 454 | (void) ext2fs_get_rec_len(ctx->fs, dirent, &rec_len); |
21c84b71 | 455 | if (problem) { |
1b6bf175 | 456 | if (fix_problem(ctx, problem, pctx)) { |
5dd77dbe | 457 | if (rec_len < 12) |
21c84b71 | 458 | dirent->rec_len = 12; |
3839e657 TT |
459 | /* |
460 | * Note: we don't have the parent inode just | |
461 | * yet, so we will fill it in with the root | |
462 | * inode. This will get fixed in pass 3. | |
463 | */ | |
464 | dirent->inode = EXT2_ROOT_INO; | |
70f4632b JK |
465 | ext2fs_dirent_set_name_len(dirent, 2); |
466 | ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN); | |
3839e657 TT |
467 | dirent->name[0] = '.'; |
468 | dirent->name[1] = '.'; | |
21c84b71 | 469 | dirent->name[2] = '\0'; |
3839e657 | 470 | return 1; |
efc6f628 | 471 | } |
3839e657 TT |
472 | return 0; |
473 | } | |
28db82a8 TT |
474 | if (e2fsck_dir_info_set_dotdot(ctx, ino, dirent->inode)) { |
475 | fix_problem(ctx, PR_2_NO_DIRINFO, pctx); | |
476 | return -1; | |
477 | } | |
3839e657 TT |
478 | return 0; |
479 | } | |
480 | ||
481 | /* | |
482 | * Check to make sure a directory entry doesn't contain any illegal | |
483 | * characters. | |
484 | */ | |
1b6bf175 | 485 | static int check_name(e2fsck_t ctx, |
3839e657 | 486 | struct ext2_dir_entry *dirent, |
54434927 | 487 | struct problem_context *pctx) |
3839e657 TT |
488 | { |
489 | int i; | |
490 | int fixup = -1; | |
3839e657 | 491 | int ret = 0; |
efc6f628 | 492 | |
70f4632b | 493 | for ( i = 0; i < ext2fs_dirent_name_len(dirent); i++) { |
dbff534e TT |
494 | if (dirent->name[i] != '/' && dirent->name[i] != '\0') |
495 | continue; | |
dbff534e TT |
496 | if (fixup < 0) |
497 | fixup = fix_problem(ctx, PR_2_BAD_NAME, pctx); | |
498 | if (fixup == 0) | |
499 | return 0; | |
500 | dirent->name[i] = '.'; | |
501 | ret = 1; | |
3839e657 TT |
502 | } |
503 | return ret; | |
504 | } | |
505 | ||
e3dd5c6f TT |
506 | static int encrypted_check_name(e2fsck_t ctx, |
507 | struct ext2_dir_entry *dirent, | |
508 | struct problem_context *pctx) | |
509 | { | |
510 | if (ext2fs_dirent_name_len(dirent) < EXT4_CRYPTO_BLOCK_SIZE) { | |
511 | if (fix_problem(ctx, PR_2_BAD_ENCRYPTED_NAME, pctx)) { | |
512 | dirent->inode = 0; | |
513 | return 1; | |
514 | } | |
515 | ext2fs_unmark_valid(ctx->fs); | |
516 | } | |
517 | return 0; | |
518 | } | |
519 | ||
aa4115a4 TT |
520 | /* |
521 | * Check the directory filetype (if present) | |
522 | */ | |
523 | static _INLINE_ int check_filetype(e2fsck_t ctx, | |
54434927 TT |
524 | struct ext2_dir_entry *dirent, |
525 | ext2_ino_t dir_ino EXT2FS_ATTR((unused)), | |
526 | struct problem_context *pctx) | |
aa4115a4 | 527 | { |
70f4632b | 528 | int filetype = ext2fs_dirent_file_type(dirent); |
aa4115a4 TT |
529 | int should_be = EXT2_FT_UNKNOWN; |
530 | struct ext2_inode inode; | |
531 | ||
86f3b6cf | 532 | if (!ext2fs_has_feature_filetype(ctx->fs->super)) { |
7847c1d4 TT |
533 | if (filetype == 0 || |
534 | !fix_problem(ctx, PR_2_CLEAR_FILETYPE, pctx)) | |
535 | return 0; | |
70f4632b | 536 | ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN); |
7847c1d4 TT |
537 | return 1; |
538 | } | |
aa4115a4 | 539 | |
c5d2f50d | 540 | if (ext2fs_test_inode_bitmap2(ctx->inode_dir_map, dirent->inode)) { |
aa4115a4 | 541 | should_be = EXT2_FT_DIR; |
c5d2f50d | 542 | } else if (ext2fs_test_inode_bitmap2(ctx->inode_reg_map, |
aa4115a4 TT |
543 | dirent->inode)) { |
544 | should_be = EXT2_FT_REG_FILE; | |
545 | } else if (ctx->inode_bad_map && | |
c5d2f50d | 546 | ext2fs_test_inode_bitmap2(ctx->inode_bad_map, |
aa4115a4 TT |
547 | dirent->inode)) |
548 | should_be = 0; | |
549 | else { | |
550 | e2fsck_read_inode(ctx, dirent->inode, &inode, | |
551 | "check_filetype"); | |
6fdc7a32 | 552 | should_be = ext2_file_type(inode.i_mode); |
aa4115a4 TT |
553 | } |
554 | if (filetype == should_be) | |
555 | return 0; | |
556 | pctx->num = should_be; | |
557 | ||
558 | if (fix_problem(ctx, filetype ? PR_2_BAD_FILETYPE : PR_2_SET_FILETYPE, | |
559 | pctx) == 0) | |
560 | return 0; | |
efc6f628 | 561 | |
70f4632b | 562 | ext2fs_dirent_set_file_type(dirent, should_be); |
aa4115a4 TT |
563 | return 1; |
564 | } | |
565 | ||
8fdc9985 | 566 | static void parse_int_node(ext2_filsys fs, |
6dc64392 | 567 | struct ext2_db_entry2 *db, |
8fdc9985 TT |
568 | struct check_dir_struct *cd, |
569 | struct dx_dir_info *dx_dir, | |
07307114 | 570 | char *block_buf, int failed_csum) |
8fdc9985 TT |
571 | { |
572 | struct ext2_dx_root_info *root; | |
573 | struct ext2_dx_entry *ent; | |
574 | struct ext2_dx_countlimit *limit; | |
575 | struct dx_dirblock_info *dx_db; | |
ad4fa466 | 576 | int i, expect_limit, count; |
8fdc9985 TT |
577 | blk_t blk; |
578 | ext2_dirhash_t min_hash = 0xffffffff; | |
579 | ext2_dirhash_t max_hash = 0; | |
ad4fa466 | 580 | ext2_dirhash_t hash = 0, prev_hash; |
07307114 | 581 | int csum_size = 0; |
8fdc9985 TT |
582 | |
583 | if (db->blockcnt == 0) { | |
584 | root = (struct ext2_dx_root_info *) (block_buf + 24); | |
efc6f628 | 585 | |
8fdc9985 TT |
586 | #ifdef DX_DEBUG |
587 | printf("Root node dump:\n"); | |
8deb80a5 | 588 | printf("\t Reserved zero: %u\n", root->reserved_zero); |
8fdc9985 TT |
589 | printf("\t Hash Version: %d\n", root->hash_version); |
590 | printf("\t Info length: %d\n", root->info_length); | |
591 | printf("\t Indirect levels: %d\n", root->indirect_levels); | |
592 | printf("\t Flags: %d\n", root->unused_flags); | |
593 | #endif | |
594 | ||
595 | ent = (struct ext2_dx_entry *) (block_buf + 24 + root->info_length); | |
07307114 DW |
596 | |
597 | if (failed_csum && | |
598 | (e2fsck_dir_will_be_rehashed(cd->ctx, cd->pctx.ino) || | |
599 | fix_problem(cd->ctx, PR_2_HTREE_ROOT_CSUM_INVALID, | |
600 | &cd->pctx))) | |
601 | goto clear_and_exit; | |
8fdc9985 TT |
602 | } else { |
603 | ent = (struct ext2_dx_entry *) (block_buf+8); | |
07307114 DW |
604 | |
605 | if (failed_csum && | |
606 | (e2fsck_dir_will_be_rehashed(cd->ctx, cd->pctx.ino) || | |
607 | fix_problem(cd->ctx, PR_2_HTREE_NODE_CSUM_INVALID, | |
608 | &cd->pctx))) | |
609 | goto clear_and_exit; | |
8fdc9985 | 610 | } |
07307114 | 611 | |
8fdc9985 TT |
612 | limit = (struct ext2_dx_countlimit *) ent; |
613 | ||
614 | #ifdef DX_DEBUG | |
efc6f628 | 615 | printf("Number of entries (count): %d\n", |
8132d840 | 616 | ext2fs_le16_to_cpu(limit->count)); |
efc6f628 | 617 | printf("Number of entries (limit): %d\n", |
8132d840 | 618 | ext2fs_le16_to_cpu(limit->limit)); |
8fdc9985 TT |
619 | #endif |
620 | ||
8132d840 | 621 | count = ext2fs_le16_to_cpu(limit->count); |
86f3b6cf | 622 | if (ext2fs_has_feature_metadata_csum(fs->super)) |
07307114 DW |
623 | csum_size = sizeof(struct ext2_dx_tail); |
624 | expect_limit = (fs->blocksize - | |
625 | (csum_size + ((char *) ent - block_buf))) / | |
626 | sizeof(struct ext2_dx_entry); | |
8132d840 TT |
627 | if (ext2fs_le16_to_cpu(limit->limit) != expect_limit) { |
628 | cd->pctx.num = ext2fs_le16_to_cpu(limit->limit); | |
ad4fa466 TT |
629 | if (fix_problem(cd->ctx, PR_2_HTREE_BAD_LIMIT, &cd->pctx)) |
630 | goto clear_and_exit; | |
631 | } | |
8132d840 TT |
632 | if (count > expect_limit) { |
633 | cd->pctx.num = count; | |
ad4fa466 TT |
634 | if (fix_problem(cd->ctx, PR_2_HTREE_BAD_COUNT, &cd->pctx)) |
635 | goto clear_and_exit; | |
636 | count = expect_limit; | |
637 | } | |
efc6f628 | 638 | |
ad4fa466 TT |
639 | for (i=0; i < count; i++) { |
640 | prev_hash = hash; | |
8132d840 | 641 | hash = i ? (ext2fs_le32_to_cpu(ent[i].hash) & ~1) : 0; |
8fdc9985 | 642 | #ifdef DX_DEBUG |
8deb80a5 | 643 | printf("Entry #%d: Hash 0x%08x, block %u\n", i, |
8132d840 | 644 | hash, ext2fs_le32_to_cpu(ent[i].block)); |
8fdc9985 | 645 | #endif |
1d9ec88d | 646 | blk = ext2fs_le32_to_cpu(ent[i].block) & EXT4_DX_BLOCK_MASK; |
8fdc9985 | 647 | /* Check to make sure the block is valid */ |
977ac873 | 648 | if (blk >= (blk_t) dx_dir->numblocks) { |
b7a00563 | 649 | cd->pctx.blk = blk; |
8fdc9985 | 650 | if (fix_problem(cd->ctx, PR_2_HTREE_BADBLK, |
ad4fa466 TT |
651 | &cd->pctx)) |
652 | goto clear_and_exit; | |
977ac873 | 653 | continue; |
8fdc9985 | 654 | } |
ad4fa466 TT |
655 | if (hash < prev_hash && |
656 | fix_problem(cd->ctx, PR_2_HTREE_HASH_ORDER, &cd->pctx)) | |
657 | goto clear_and_exit; | |
8fdc9985 TT |
658 | dx_db = &dx_dir->dx_block[blk]; |
659 | if (dx_db->flags & DX_FLAG_REFERENCED) { | |
660 | dx_db->flags |= DX_FLAG_DUP_REF; | |
661 | } else { | |
662 | dx_db->flags |= DX_FLAG_REFERENCED; | |
663 | dx_db->parent = db->blockcnt; | |
664 | } | |
ae9efd05 AB |
665 | |
666 | dx_db->previous = | |
1d9ec88d LC |
667 | i ? (ext2fs_le32_to_cpu(ent[i-1].block) & |
668 | EXT4_DX_BLOCK_MASK) : 0; | |
ae9efd05 | 669 | |
8fdc9985 TT |
670 | if (hash < min_hash) |
671 | min_hash = hash; | |
672 | if (hash > max_hash) | |
673 | max_hash = hash; | |
674 | dx_db->node_min_hash = hash; | |
8132d840 | 675 | if ((i+1) < count) |
efc6f628 | 676 | dx_db->node_max_hash = |
8132d840 | 677 | ext2fs_le32_to_cpu(ent[i+1].hash) & ~1; |
8fdc9985 TT |
678 | else { |
679 | dx_db->node_max_hash = 0xfffffffe; | |
680 | dx_db->flags |= DX_FLAG_LAST; | |
681 | } | |
682 | if (i == 0) | |
683 | dx_db->flags |= DX_FLAG_FIRST; | |
684 | } | |
685 | #ifdef DX_DEBUG | |
686 | printf("Blockcnt = %d, min hash 0x%08x, max hash 0x%08x\n", | |
687 | db->blockcnt, min_hash, max_hash); | |
688 | #endif | |
689 | dx_db = &dx_dir->dx_block[db->blockcnt]; | |
690 | dx_db->min_hash = min_hash; | |
691 | dx_db->max_hash = max_hash; | |
ad4fa466 TT |
692 | return; |
693 | ||
694 | clear_and_exit: | |
695 | clear_htree(cd->ctx, cd->pctx.ino); | |
696 | dx_dir->numblocks = 0; | |
07307114 | 697 | e2fsck_rehash_dir_later(cd->ctx, cd->pctx.ino); |
8fdc9985 | 698 | } |
aa4115a4 | 699 | |
e70ae99e TT |
700 | /* |
701 | * Given a busted directory, try to salvage it somehow. | |
efc6f628 | 702 | * |
e70ae99e | 703 | */ |
ad4fa466 | 704 | static void salvage_directory(ext2_filsys fs, |
e70ae99e TT |
705 | struct ext2_dir_entry *dirent, |
706 | struct ext2_dir_entry *prev, | |
82ad476d DW |
707 | unsigned int *offset, |
708 | unsigned int block_len) | |
e70ae99e TT |
709 | { |
710 | char *cp = (char *) dirent; | |
8a480350 TT |
711 | int left; |
712 | unsigned int rec_len, prev_rec_len; | |
4a3dc1f0 | 713 | unsigned int name_len; |
e70ae99e | 714 | |
4a3dc1f0 DW |
715 | /* |
716 | * If the space left for the entry is too small to be an entry, | |
717 | * we can't access dirent's fields, so plumb in the values needed | |
718 | * so that the previous entry absorbs this one. | |
719 | */ | |
720 | if (block_len - *offset < EXT2_DIR_ENTRY_HEADER_LEN) { | |
721 | name_len = 0; | |
722 | rec_len = block_len - *offset; | |
723 | } else { | |
724 | name_len = ext2fs_dirent_name_len(dirent); | |
725 | (void) ext2fs_get_rec_len(fs, dirent, &rec_len); | |
726 | } | |
82ad476d | 727 | left = block_len - *offset - rec_len; |
5dd77dbe | 728 | |
e70ae99e TT |
729 | /* |
730 | * Special case of directory entry of size 8: copy what's left | |
731 | * of the directory block up to cover up the invalid hole. | |
732 | */ | |
4a3dc1f0 DW |
733 | if ((left >= 12) && (rec_len == EXT2_DIR_ENTRY_HEADER_LEN)) { |
734 | memmove(cp, cp+EXT2_DIR_ENTRY_HEADER_LEN, left); | |
735 | memset(cp + left, 0, EXT2_DIR_ENTRY_HEADER_LEN); | |
ad4fa466 TT |
736 | return; |
737 | } | |
738 | /* | |
739 | * If the directory entry overruns the end of the directory | |
740 | * block, and the name is small enough to fit, then adjust the | |
741 | * record length. | |
742 | */ | |
743 | if ((left < 0) && | |
4a3dc1f0 DW |
744 | ((int) rec_len + left > EXT2_DIR_ENTRY_HEADER_LEN) && |
745 | ((int) name_len + EXT2_DIR_ENTRY_HEADER_LEN <= (int) rec_len + left) && | |
ad4fa466 TT |
746 | dirent->inode <= fs->super->s_inodes_count && |
747 | strnlen(dirent->name, name_len) == name_len) { | |
8a480350 | 748 | (void) ext2fs_set_rec_len(fs, (int) rec_len + left, dirent); |
ad4fa466 | 749 | return; |
e70ae99e TT |
750 | } |
751 | /* | |
575307cc KS |
752 | * If the record length of the directory entry is a multiple |
753 | * of four, and not too big, such that it is valid, let the | |
754 | * previous directory entry absorb the invalid one. | |
e70ae99e | 755 | */ |
5dd77dbe | 756 | if (prev && rec_len && (rec_len % 4) == 0 && |
82ad476d | 757 | (*offset + rec_len <= block_len)) { |
8a480350 TT |
758 | (void) ext2fs_get_rec_len(fs, prev, &prev_rec_len); |
759 | prev_rec_len += rec_len; | |
760 | (void) ext2fs_set_rec_len(fs, prev_rec_len, prev); | |
5dd77dbe | 761 | *offset += rec_len; |
ad4fa466 | 762 | return; |
e70ae99e TT |
763 | } |
764 | /* | |
765 | * Default salvage method --- kill all of the directory | |
766 | * entries for the rest of the block. We will either try to | |
767 | * absorb it into the previous directory entry, or create a | |
768 | * new empty directory entry the rest of the directory block. | |
769 | */ | |
770 | if (prev) { | |
8a480350 | 771 | (void) ext2fs_get_rec_len(fs, prev, &prev_rec_len); |
82ad476d | 772 | prev_rec_len += block_len - *offset; |
8a480350 | 773 | (void) ext2fs_set_rec_len(fs, prev_rec_len, prev); |
ad4fa466 | 774 | *offset = fs->blocksize; |
e70ae99e | 775 | } else { |
82ad476d | 776 | rec_len = block_len - *offset; |
8a480350 | 777 | (void) ext2fs_set_rec_len(fs, rec_len, dirent); |
70f4632b JK |
778 | ext2fs_dirent_set_name_len(dirent, 0); |
779 | ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN); | |
e70ae99e | 780 | dirent->inode = 0; |
e70ae99e | 781 | } |
e70ae99e TT |
782 | } |
783 | ||
d3eb1502 | 784 | #define NEXT_DIRENT(d) ((void *)((char *)(d) + (d)->rec_len)) |
17641bf2 DW |
785 | static errcode_t insert_dirent_tail(ext2_filsys fs, void *dirbuf) |
786 | { | |
787 | struct ext2_dir_entry *d; | |
788 | void *top; | |
789 | struct ext2_dir_entry_tail *t; | |
17641bf2 DW |
790 | |
791 | d = dirbuf; | |
792 | top = EXT2_DIRENT_TAIL(dirbuf, fs->blocksize); | |
793 | ||
d3eb1502 DW |
794 | while (d->rec_len && !(d->rec_len & 0x3) && NEXT_DIRENT(d) <= top) |
795 | d = NEXT_DIRENT(d); | |
17641bf2 DW |
796 | |
797 | if (d != top) { | |
62f9bd0e | 798 | unsigned int min_size = EXT2_DIR_REC_LEN( |
17641bf2 | 799 | ext2fs_dirent_name_len(dirbuf)); |
62f9bd0e | 800 | if (min_size > (char *)top - (char *)d) |
17641bf2 | 801 | return EXT2_ET_DIR_NO_SPACE_FOR_CSUM; |
62f9bd0e | 802 | d->rec_len = (char *)top - (char *)d; |
17641bf2 DW |
803 | } |
804 | ||
805 | t = (struct ext2_dir_entry_tail *)top; | |
806 | if (t->det_reserved_zero1 || | |
807 | t->det_rec_len != sizeof(struct ext2_dir_entry_tail) || | |
808 | t->det_reserved_name_len != EXT2_DIR_NAME_LEN_CSUM) | |
809 | ext2fs_initialize_dirent_tail(fs, t); | |
810 | ||
811 | return 0; | |
812 | } | |
d3eb1502 | 813 | #undef NEXT_DIRENT |
17641bf2 | 814 | |
52b0c6e6 DW |
815 | static errcode_t fix_inline_dir_size(e2fsck_t ctx, ext2_ino_t ino, |
816 | size_t *inline_data_size, | |
817 | struct problem_context *pctx, | |
818 | char *buf) | |
819 | { | |
820 | ext2_filsys fs = ctx->fs; | |
821 | struct ext2_inode inode; | |
822 | size_t new_size, old_size; | |
823 | errcode_t retval; | |
824 | ||
825 | old_size = *inline_data_size; | |
0ac4b397 DW |
826 | /* |
827 | * If there's not enough bytes to start the "second" dir block | |
828 | * (in the EA space) then truncate everything to the first block. | |
829 | */ | |
830 | if (old_size > EXT4_MIN_INLINE_DATA_SIZE && | |
831 | old_size < EXT4_MIN_INLINE_DATA_SIZE + | |
832 | EXT2_DIR_REC_LEN(1)) { | |
833 | old_size = EXT4_MIN_INLINE_DATA_SIZE; | |
834 | new_size = old_size; | |
835 | } else | |
836 | /* Increase to the next four-byte boundary for salvaging */ | |
837 | new_size = old_size + (4 - (old_size & 3)); | |
52b0c6e6 DW |
838 | memset(buf + old_size, 0, new_size - old_size); |
839 | retval = ext2fs_inline_data_set(fs, ino, 0, buf, new_size); | |
840 | if (retval == EXT2_ET_INLINE_DATA_NO_SPACE) { | |
0ac4b397 | 841 | /* Or we can't, so truncate. */ |
52b0c6e6 DW |
842 | new_size -= 4; |
843 | retval = ext2fs_inline_data_set(fs, ino, 0, buf, new_size); | |
844 | if (retval) { | |
845 | if (fix_problem(ctx, PR_2_FIX_INLINE_DIR_FAILED, | |
846 | pctx)) { | |
847 | new_size = 0; | |
848 | goto write_inode; | |
849 | } | |
850 | goto err; | |
851 | } | |
852 | } else if (retval) { | |
853 | if (fix_problem(ctx, PR_2_FIX_INLINE_DIR_FAILED, | |
854 | pctx)) { | |
855 | new_size = 0; | |
856 | goto write_inode; | |
857 | } | |
858 | goto err; | |
859 | } | |
860 | ||
861 | write_inode: | |
862 | retval = ext2fs_read_inode(fs, ino, &inode); | |
863 | if (retval) | |
864 | goto err; | |
865 | ||
866 | retval = ext2fs_inode_size_set(fs, &inode, new_size); | |
867 | if (retval) | |
868 | goto err; | |
869 | if (new_size == 0) | |
870 | inode.i_flags &= ~EXT4_INLINE_DATA_FL; | |
871 | retval = ext2fs_write_inode(fs, ino, &inode); | |
872 | if (retval) | |
873 | goto err; | |
874 | *inline_data_size = new_size; | |
875 | ||
876 | err: | |
877 | return retval; | |
878 | } | |
879 | ||
a5abfe03 DW |
880 | static int check_dir_block2(ext2_filsys fs, |
881 | struct ext2_db_entry2 *db, | |
882 | void *priv_data) | |
883 | { | |
884 | int err; | |
885 | struct check_dir_struct *cd = priv_data; | |
886 | ||
887 | if (cd->ra_entries && cd->list_offset >= cd->next_ra_off) { | |
888 | err = e2fsck_readahead_dblist(fs, | |
889 | E2FSCK_RA_DBLIST_IGNORE_BLOCKCNT, | |
890 | fs->dblist, | |
891 | cd->list_offset + cd->ra_entries / 8, | |
892 | cd->ra_entries); | |
893 | if (err) | |
894 | cd->ra_entries = 0; | |
895 | cd->next_ra_off = cd->list_offset + (cd->ra_entries * 7 / 8); | |
896 | } | |
897 | ||
898 | err = check_dir_block(fs, db, priv_data); | |
899 | cd->list_offset++; | |
900 | return err; | |
901 | } | |
902 | ||
3839e657 | 903 | static int check_dir_block(ext2_filsys fs, |
6dc64392 | 904 | struct ext2_db_entry2 *db, |
54dc7ca2 | 905 | void *priv_data) |
3839e657 | 906 | { |
8fdc9985 | 907 | struct dx_dir_info *dx_dir; |
8fdc9985 | 908 | struct dx_dirblock_info *dx_db = 0; |
6582dbe9 | 909 | struct ext2_dir_entry *dirent, *prev, dot, dotdot; |
8fdc9985 | 910 | ext2_dirhash_t hash; |
54434927 | 911 | unsigned int offset = 0; |
3839e657 | 912 | int dir_modified = 0; |
21c84b71 | 913 | int dot_state; |
03fa6f8a | 914 | unsigned int rec_len; |
6dc64392 | 915 | blk64_t block_nr = db->blk; |
86c627ec | 916 | ext2_ino_t ino = db->ino; |
28db82a8 | 917 | ext2_ino_t subdir_parent; |
21c84b71 | 918 | __u16 links; |
54dc7ca2 | 919 | struct check_dir_struct *cd; |
0ac4b397 | 920 | char *buf, *ibuf; |
1b6bf175 | 921 | e2fsck_t ctx; |
3c7c6d73 | 922 | problem_t problem; |
ea1959f0 | 923 | struct ext2_dx_root_info *root; |
e8254bfd | 924 | struct ext2_dx_countlimit *limit; |
0926668d TT |
925 | static dict_t de_dict; |
926 | struct problem_context pctx; | |
927 | int dups_found = 0; | |
28db82a8 | 928 | int ret; |
e8548796 | 929 | int dx_csum_size = 0, de_csum_size = 0; |
81683c6a | 930 | int failed_csum = 0; |
e8548796 | 931 | int is_leaf = 1; |
24997f1c | 932 | size_t inline_data_size = 0; |
6582dbe9 | 933 | int filetype = 0; |
62ad2480 | 934 | int encrypted = 0; |
0ac4b397 | 935 | size_t max_block_size; |
28b44ef0 | 936 | int hash_flags = 0; |
c4e73242 | 937 | static char *eop_read_dirblock = NULL; |
1b6bf175 | 938 | |
54dc7ca2 | 939 | cd = (struct check_dir_struct *) priv_data; |
0ac4b397 | 940 | ibuf = buf = cd->buf; |
1b6bf175 | 941 | ctx = cd->ctx; |
f8188fff | 942 | |
db3d8718 | 943 | if (ctx->flags & E2F_FLAG_RUN_RETURN) |
4cae0452 | 944 | return DIRENT_ABORT; |
efc6f628 | 945 | |
4cae0452 TT |
946 | if (ctx->progress && (ctx->progress)(ctx, 2, cd->count++, cd->max)) |
947 | return DIRENT_ABORT; | |
efc6f628 | 948 | |
86f3b6cf | 949 | if (ext2fs_has_feature_metadata_csum(fs->super)) { |
07307114 | 950 | dx_csum_size = sizeof(struct ext2_dx_tail); |
e8548796 DW |
951 | de_csum_size = sizeof(struct ext2_dir_entry_tail); |
952 | } | |
07307114 | 953 | |
86f3b6cf | 954 | if (ext2fs_has_feature_filetype(fs->super)) |
6582dbe9 ZL |
955 | filetype = EXT2_FT_DIR << 8; |
956 | ||
3839e657 | 957 | /* |
efc6f628 | 958 | * Make sure the inode is still in use (could have been |
3839e657 TT |
959 | * deleted in the duplicate/bad blocks pass. |
960 | */ | |
c5d2f50d | 961 | if (!(ext2fs_test_inode_bitmap2(ctx->inode_used_map, ino))) |
3839e657 | 962 | return 0; |
50e1e10f | 963 | |
21c84b71 TT |
964 | cd->pctx.ino = ino; |
965 | cd->pctx.blk = block_nr; | |
966 | cd->pctx.blkcount = db->blockcnt; | |
967 | cd->pctx.ino2 = 0; | |
968 | cd->pctx.dirent = 0; | |
969 | cd->pctx.num = 0; | |
970 | ||
86f3b6cf | 971 | if (ext2fs_has_feature_inline_data(fs->super)) { |
6582dbe9 ZL |
972 | errcode_t ec; |
973 | ||
974 | ec = ext2fs_inline_data_size(fs, ino, &inline_data_size); | |
975 | if (ec && ec != EXT2_ET_NO_INLINE_DATA) | |
976 | return DIRENT_ABORT; | |
977 | } | |
978 | ||
ae9efd05 AB |
979 | /* This will allow (at some point in the future) to punch out empty |
980 | * directory blocks and reduce the space used by a directory that grows | |
981 | * very large and then the files are deleted. For now, all that is | |
982 | * needed is to avoid e2fsck filling in these holes as part of | |
983 | * feature flag. */ | |
10c5c5e5 AB |
984 | if (db->blk == 0 && ext2fs_has_feature_largedir(fs->super) && |
985 | !ext2fs_has_feature_inline_data(fs->super)) | |
ae9efd05 AB |
986 | return 0; |
987 | ||
6582dbe9 | 988 | if (db->blk == 0 && !inline_data_size) { |
1b6bf175 | 989 | if (allocate_dir_block(ctx, db, buf, &cd->pctx)) |
50e1e10f TT |
990 | return 0; |
991 | block_nr = db->blk; | |
992 | } | |
efc6f628 | 993 | |
3839e657 TT |
994 | if (db->blockcnt) |
995 | dot_state = 2; | |
996 | else | |
997 | dot_state = 0; | |
998 | ||
0926668d TT |
999 | if (ctx->dirs_to_hash && |
1000 | ext2fs_u32_list_test(ctx->dirs_to_hash, ino)) | |
1001 | dups_found++; | |
1002 | ||
3839e657 | 1003 | #if 0 |
f3db3566 | 1004 | printf("In process_dir_block block %lu, #%d, inode %lu\n", block_nr, |
3839e657 TT |
1005 | db->blockcnt, ino); |
1006 | #endif | |
efc6f628 | 1007 | |
c4e73242 TT |
1008 | if (!eop_read_dirblock) |
1009 | eop_read_dirblock = (char *) _("reading directory block"); | |
1010 | ehandler_operation(eop_read_dirblock); | |
cd971869 | 1011 | if (inline_data_size) { |
4a3dc1f0 | 1012 | memset(buf, 0, fs->blocksize - inline_data_size); |
6582dbe9 | 1013 | cd->pctx.errcode = ext2fs_inline_data_get(fs, ino, 0, buf, 0); |
cd971869 DW |
1014 | if (cd->pctx.errcode) |
1015 | goto inline_read_fail; | |
1016 | #ifdef WORDS_BIGENDIAN | |
0ac4b397 DW |
1017 | if (db->blockcnt) |
1018 | goto skip_first_read_swab; | |
cd971869 DW |
1019 | *((__u32 *)buf) = ext2fs_le32_to_cpu(*((__u32 *)buf)); |
1020 | cd->pctx.errcode = ext2fs_dirent_swab_in2(fs, | |
1021 | buf + EXT4_INLINE_DATA_DOTDOT_SIZE, | |
0ac4b397 DW |
1022 | EXT4_MIN_INLINE_DATA_SIZE - EXT4_INLINE_DATA_DOTDOT_SIZE, |
1023 | 0); | |
1024 | if (cd->pctx.errcode) | |
1025 | goto inline_read_fail; | |
1026 | skip_first_read_swab: | |
1027 | if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE || | |
1028 | !db->blockcnt) | |
1029 | goto inline_read_fail; | |
1030 | cd->pctx.errcode = ext2fs_dirent_swab_in2(fs, | |
1031 | buf + EXT4_MIN_INLINE_DATA_SIZE, | |
1032 | inline_data_size - EXT4_MIN_INLINE_DATA_SIZE, | |
cd971869 DW |
1033 | 0); |
1034 | #endif | |
1035 | } else | |
6582dbe9 ZL |
1036 | cd->pctx.errcode = ext2fs_read_dir_block4(fs, block_nr, |
1037 | buf, 0, ino); | |
cd971869 | 1038 | inline_read_fail: |
52b0c6e6 DW |
1039 | pctx.ino = ino; |
1040 | pctx.num = inline_data_size; | |
0ac4b397 DW |
1041 | if (((inline_data_size & 3) || |
1042 | (inline_data_size > EXT4_MIN_INLINE_DATA_SIZE && | |
1043 | inline_data_size < EXT4_MIN_INLINE_DATA_SIZE + | |
1044 | EXT2_DIR_REC_LEN(1))) && | |
52b0c6e6 DW |
1045 | fix_problem(ctx, PR_2_BAD_INLINE_DIR_SIZE, &pctx)) { |
1046 | errcode_t err = fix_inline_dir_size(ctx, ino, | |
1047 | &inline_data_size, &pctx, | |
1048 | buf); | |
1049 | if (err) | |
1050 | return DIRENT_ABORT; | |
1051 | ||
1052 | } | |
e94bc631 | 1053 | ehandler_operation(0); |
b9852cd8 TT |
1054 | if (cd->pctx.errcode == EXT2_ET_DIR_CORRUPTED) |
1055 | cd->pctx.errcode = 0; /* We'll handle this ourselves */ | |
81683c6a DW |
1056 | else if (cd->pctx.errcode == EXT2_ET_DIR_CSUM_INVALID) { |
1057 | cd->pctx.errcode = 0; /* We'll handle this ourselves */ | |
1058 | failed_csum = 1; | |
1059 | } | |
1b6bf175 | 1060 | if (cd->pctx.errcode) { |
e8548796 | 1061 | char *buf2; |
08b21301 TT |
1062 | if (!fix_problem(ctx, PR_2_READ_DIRBLOCK, &cd->pctx)) { |
1063 | ctx->flags |= E2F_FLAG_ABORT; | |
1064 | return DIRENT_ABORT; | |
1065 | } | |
e8548796 DW |
1066 | ext2fs_new_dir_block(fs, db->blockcnt == 0 ? ino : 0, |
1067 | EXT2_ROOT_INO, &buf2); | |
1068 | memcpy(buf, buf2, fs->blocksize); | |
1069 | ext2fs_free_mem(&buf2); | |
3839e657 | 1070 | } |
8fdc9985 | 1071 | dx_dir = e2fsck_get_dx_dir_info(ctx, ino); |
62acaa1d | 1072 | if (dx_dir && dx_dir->numblocks) { |
8fdc9985 | 1073 | if (db->blockcnt >= dx_dir->numblocks) { |
ea9085c7 | 1074 | pctx.dir = ino; |
efc6f628 | 1075 | if (fix_problem(ctx, PR_2_UNEXPECTED_HTREE_BLOCK, |
d45edec0 TT |
1076 | &pctx)) { |
1077 | clear_htree(ctx, ino); | |
1078 | dx_dir->numblocks = 0; | |
1079 | dx_db = 0; | |
1080 | goto out_htree; | |
1081 | } | |
1082 | fatal_error(ctx, _("Can not continue.")); | |
8fdc9985 TT |
1083 | } |
1084 | dx_db = &dx_dir->dx_block[db->blockcnt]; | |
1085 | dx_db->type = DX_DIRBLOCK_LEAF; | |
1086 | dx_db->phys = block_nr; | |
1087 | dx_db->min_hash = ~0; | |
1088 | dx_db->max_hash = 0; | |
efc6f628 | 1089 | |
8fdc9985 | 1090 | dirent = (struct ext2_dir_entry *) buf; |
8a480350 | 1091 | (void) ext2fs_get_rec_len(fs, dirent, &rec_len); |
e8254bfd | 1092 | limit = (struct ext2_dx_countlimit *) (buf+8); |
8fdc9985 | 1093 | if (db->blockcnt == 0) { |
ea1959f0 | 1094 | root = (struct ext2_dx_root_info *) (buf + 24); |
8fdc9985 TT |
1095 | dx_db->type = DX_DIRBLOCK_ROOT; |
1096 | dx_db->flags |= DX_FLAG_FIRST | DX_FLAG_LAST; | |
ea1959f0 TT |
1097 | if ((root->reserved_zero || |
1098 | root->info_length < 8 || | |
3f0cf647 AB |
1099 | root->indirect_levels >= |
1100 | ext2_dir_htree_level(fs)) && | |
ea1959f0 TT |
1101 | fix_problem(ctx, PR_2_HTREE_BAD_ROOT, &cd->pctx)) { |
1102 | clear_htree(ctx, ino); | |
1103 | dx_dir->numblocks = 0; | |
354545a7 | 1104 | dx_db = NULL; |
f77704e4 | 1105 | } |
ea1959f0 | 1106 | dx_dir->hashversion = root->hash_version; |
f77704e4 TT |
1107 | if ((dx_dir->hashversion <= EXT2_HASH_TEA) && |
1108 | (fs->super->s_flags & EXT2_FLAGS_UNSIGNED_HASH)) | |
1109 | dx_dir->hashversion += 3; | |
ad4fa466 | 1110 | dx_dir->depth = root->indirect_levels + 1; |
8fdc9985 | 1111 | } else if ((dirent->inode == 0) && |
5dd77dbe | 1112 | (rec_len == fs->blocksize) && |
70f4632b | 1113 | (ext2fs_dirent_name_len(dirent) == 0) && |
efc6f628 | 1114 | (ext2fs_le16_to_cpu(limit->limit) == |
07307114 | 1115 | ((fs->blocksize - (8 + dx_csum_size)) / |
354545a7 | 1116 | sizeof(struct ext2_dx_entry)))) { |
8fdc9985 | 1117 | dx_db->type = DX_DIRBLOCK_NODE; |
354545a7 AB |
1118 | } |
1119 | is_leaf = dx_db ? (dx_db->type == DX_DIRBLOCK_LEAF) : 0; | |
8fdc9985 | 1120 | } |
d45edec0 | 1121 | out_htree: |
3839e657 | 1122 | |
7f43a46f DW |
1123 | /* Leaf node with no space for csum? Rebuild dirs in pass 3A. */ |
1124 | if (is_leaf && !inline_data_size && failed_csum && | |
1125 | !ext2fs_dirent_has_tail(fs, (struct ext2_dir_entry *)buf)) { | |
1126 | de_csum_size = 0; | |
d02d0195 DW |
1127 | if (e2fsck_dir_will_be_rehashed(ctx, ino)) { |
1128 | failed_csum = 0; | |
1129 | goto skip_checksum; | |
1130 | } | |
1131 | if (!fix_problem(cd->ctx, PR_2_LEAF_NODE_MISSING_CSUM, | |
7f43a46f | 1132 | &cd->pctx)) |
e8548796 | 1133 | goto skip_checksum; |
7f43a46f | 1134 | e2fsck_rehash_dir_later(ctx, ino); |
d02d0195 | 1135 | failed_csum = 0; |
7f43a46f | 1136 | goto skip_checksum; |
e8548796 DW |
1137 | } |
1138 | /* htree nodes don't use fake dirents to store checksums */ | |
1139 | if (!is_leaf) | |
1140 | de_csum_size = 0; | |
1141 | ||
1142 | skip_checksum: | |
0ac4b397 DW |
1143 | if (inline_data_size) { |
1144 | if (db->blockcnt) { | |
1145 | buf += EXT4_MIN_INLINE_DATA_SIZE; | |
1146 | max_block_size = inline_data_size - EXT4_MIN_INLINE_DATA_SIZE; | |
1147 | /* Zero-length second block, just exit */ | |
1148 | if (max_block_size == 0) | |
1149 | return 0; | |
1150 | } else { | |
1151 | max_block_size = EXT4_MIN_INLINE_DATA_SIZE; | |
1152 | } | |
1153 | } else | |
1154 | max_block_size = fs->blocksize - de_csum_size; | |
1155 | ||
62ad2480 TT |
1156 | if (ctx->encrypted_dirs) |
1157 | encrypted = ext2fs_u32_list_test(ctx->encrypted_dirs, ino); | |
1158 | ||
0926668d | 1159 | dict_init(&de_dict, DICTCOUNT_T_MAX, dict_de_cmp); |
e70ae99e | 1160 | prev = 0; |
3839e657 | 1161 | do { |
3971bfe8 | 1162 | dgrp_t group; |
49a7360b | 1163 | ext2_ino_t first_unused_inode; |
70f4632b | 1164 | unsigned int name_len; |
49a7360b | 1165 | |
1b6bf175 | 1166 | problem = 0; |
6582dbe9 ZL |
1167 | if (!inline_data_size || dot_state > 1) { |
1168 | dirent = (struct ext2_dir_entry *) (buf + offset); | |
4a3dc1f0 DW |
1169 | /* |
1170 | * If there's not even space for the entry header, | |
1171 | * force salvaging this dir. | |
1172 | */ | |
1173 | if (max_block_size - offset < EXT2_DIR_ENTRY_HEADER_LEN) | |
1174 | rec_len = EXT2_DIR_REC_LEN(1); | |
1175 | else | |
1176 | (void) ext2fs_get_rec_len(fs, dirent, &rec_len); | |
6582dbe9 ZL |
1177 | cd->pctx.dirent = dirent; |
1178 | cd->pctx.num = offset; | |
4a3dc1f0 | 1179 | if ((offset + rec_len > max_block_size) || |
6582dbe9 ZL |
1180 | (rec_len < 12) || |
1181 | ((rec_len % 4) != 0) || | |
62f9bd0e | 1182 | (((unsigned) ext2fs_dirent_name_len(dirent) + EXT2_DIR_ENTRY_HEADER_LEN) > rec_len)) { |
82ad476d DW |
1183 | if (fix_problem(ctx, PR_2_DIR_CORRUPTED, |
1184 | &cd->pctx)) { | |
4348709c DW |
1185 | #ifdef WORDS_BIGENDIAN |
1186 | /* | |
1187 | * On big-endian systems, if the dirent | |
1188 | * swap routine finds a rec_len that it | |
1189 | * doesn't like, it continues | |
1190 | * processing the block as if rec_len | |
4a3dc1f0 | 1191 | * == EXT2_DIR_ENTRY_HEADER_LEN. This means that the name |
4348709c DW |
1192 | * field gets byte swapped, which means |
1193 | * that salvage will not detect the | |
1194 | * correct name length (unless the name | |
1195 | * has a length that's an exact | |
1196 | * multiple of four bytes), and it'll | |
1197 | * discard the entry (unnecessarily) | |
1198 | * and the rest of the dirent block. | |
1199 | * Therefore, swap the rest of the | |
1200 | * block back to disk order, run | |
1201 | * salvage, and re-swap anything after | |
1202 | * the salvaged dirent. | |
1203 | */ | |
1204 | int need_reswab = 0; | |
4a3dc1f0 | 1205 | if (rec_len < EXT2_DIR_ENTRY_HEADER_LEN || rec_len % 4) { |
4348709c DW |
1206 | need_reswab = 1; |
1207 | ext2fs_dirent_swab_in2(fs, | |
4a3dc1f0 DW |
1208 | ((char *)dirent) + EXT2_DIR_ENTRY_HEADER_LEN, |
1209 | max_block_size - offset - EXT2_DIR_ENTRY_HEADER_LEN, | |
4348709c DW |
1210 | 0); |
1211 | } | |
1212 | #endif | |
82ad476d DW |
1213 | salvage_directory(fs, dirent, prev, |
1214 | &offset, | |
3a748dfc | 1215 | max_block_size); |
4348709c DW |
1216 | #ifdef WORDS_BIGENDIAN |
1217 | if (need_reswab) { | |
1218 | (void) ext2fs_get_rec_len(fs, | |
1219 | dirent, &rec_len); | |
1220 | ext2fs_dirent_swab_in2(fs, | |
1221 | ((char *)dirent) + offset + rec_len, | |
1222 | max_block_size - offset - rec_len, | |
1223 | 0); | |
1224 | } | |
1225 | #endif | |
6582dbe9 ZL |
1226 | dir_modified++; |
1227 | continue; | |
1228 | } else | |
1229 | goto abort_free_dict; | |
1230 | } | |
1231 | } else { | |
1232 | if (dot_state == 0) { | |
1233 | memset(&dot, 0, sizeof(dot)); | |
1234 | dirent = ˙ | |
1235 | dirent->inode = ino; | |
1236 | dirent->rec_len = EXT2_DIR_REC_LEN(1); | |
1237 | dirent->name_len = 1 | filetype; | |
1238 | dirent->name[0] = '.'; | |
1239 | } else if (dot_state == 1) { | |
1240 | memset(&dotdot, 0, sizeof(dotdot)); | |
1241 | dirent = &dotdot; | |
1242 | dirent->inode = | |
1243 | ((struct ext2_dir_entry *)buf)->inode; | |
1244 | dirent->rec_len = EXT2_DIR_REC_LEN(2); | |
1245 | dirent->name_len = 2 | filetype; | |
1246 | dirent->name[0] = '.'; | |
1247 | dirent->name[1] = '.'; | |
1248 | } else { | |
1249 | fatal_error(ctx, _("Can not continue.")); | |
1250 | } | |
1251 | cd->pctx.dirent = dirent; | |
1252 | cd->pctx.num = offset; | |
3839e657 | 1253 | } |
50e1e10f | 1254 | |
e70ae99e | 1255 | if (dot_state == 0) { |
1b6bf175 | 1256 | if (check_dot(ctx, dirent, ino, &cd->pctx)) |
3839e657 | 1257 | dir_modified++; |
e70ae99e | 1258 | } else if (dot_state == 1) { |
28db82a8 TT |
1259 | ret = check_dotdot(ctx, dirent, ino, &cd->pctx); |
1260 | if (ret < 0) | |
0926668d | 1261 | goto abort_free_dict; |
28db82a8 | 1262 | if (ret) |
3839e657 TT |
1263 | dir_modified++; |
1264 | } else if (dirent->inode == ino) { | |
1b6bf175 TT |
1265 | problem = PR_2_LINK_DOT; |
1266 | if (fix_problem(ctx, PR_2_LINK_DOT, &cd->pctx)) { | |
3839e657 TT |
1267 | dirent->inode = 0; |
1268 | dir_modified++; | |
21c84b71 | 1269 | goto next; |
3839e657 TT |
1270 | } |
1271 | } | |
efc6f628 | 1272 | if (!dirent->inode) |
3839e657 | 1273 | goto next; |
efc6f628 | 1274 | |
3839e657 TT |
1275 | /* |
1276 | * Make sure the inode listed is a legal one. | |
efc6f628 | 1277 | */ |
70f4632b | 1278 | name_len = ext2fs_dirent_name_len(dirent); |
3839e657 | 1279 | if (((dirent->inode != EXT2_ROOT_INO) && |
7f88b043 | 1280 | (dirent->inode < EXT2_FIRST_INODE(fs->super))) || |
3839e657 | 1281 | (dirent->inode > fs->super->s_inodes_count)) { |
1b6bf175 | 1282 | problem = PR_2_BAD_INO; |
1b6bf175 | 1283 | } else if (ctx->inode_bb_map && |
c5d2f50d | 1284 | (ext2fs_test_inode_bitmap2(ctx->inode_bb_map, |
1b6bf175 TT |
1285 | dirent->inode))) { |
1286 | /* | |
1287 | * If the inode is in a bad block, offer to | |
1288 | * clear it. | |
1289 | */ | |
1290 | problem = PR_2_BB_INODE; | |
70f4632b | 1291 | } else if ((dot_state > 1) && (name_len == 1) && |
1b6bf175 TT |
1292 | (dirent->name[0] == '.')) { |
1293 | /* | |
1294 | * If there's a '.' entry in anything other | |
1295 | * than the first directory entry, it's a | |
1296 | * duplicate entry that should be removed. | |
1297 | */ | |
1298 | problem = PR_2_DUP_DOT; | |
70f4632b | 1299 | } else if ((dot_state > 1) && (name_len == 2) && |
efc6f628 | 1300 | (dirent->name[0] == '.') && |
1b6bf175 TT |
1301 | (dirent->name[1] == '.')) { |
1302 | /* | |
1303 | * If there's a '..' entry in anything other | |
1304 | * than the second directory entry, it's a | |
1305 | * duplicate entry that should be removed. | |
1306 | */ | |
1307 | problem = PR_2_DUP_DOT_DOT; | |
e70ae99e | 1308 | } else if ((dot_state > 1) && |
1b6bf175 TT |
1309 | (dirent->inode == EXT2_ROOT_INO)) { |
1310 | /* | |
1311 | * Don't allow links to the root directory. | |
1312 | * We check this specially to make sure we | |
1313 | * catch this error case even if the root | |
1314 | * directory hasn't been created yet. | |
1315 | */ | |
1316 | problem = PR_2_LINK_ROOT; | |
70f4632b | 1317 | } else if ((dot_state > 1) && (name_len == 0)) { |
c40db6d5 TT |
1318 | /* |
1319 | * Don't allow zero-length directory names. | |
1320 | */ | |
1321 | problem = PR_2_NULL_NAME; | |
21c84b71 TT |
1322 | } |
1323 | ||
1b6bf175 TT |
1324 | if (problem) { |
1325 | if (fix_problem(ctx, problem, &cd->pctx)) { | |
21c84b71 TT |
1326 | dirent->inode = 0; |
1327 | dir_modified++; | |
1328 | goto next; | |
1b6bf175 TT |
1329 | } else { |
1330 | ext2fs_unmark_valid(fs); | |
1331 | if (problem == PR_2_BAD_INO) | |
1332 | goto next; | |
21c84b71 | 1333 | } |
3839e657 TT |
1334 | } |
1335 | ||
1336 | /* | |
1337 | * If the inode was marked as having bad fields in | |
1338 | * pass1, process it and offer to fix/clear it. | |
1339 | * (We wait until now so that we can display the | |
1340 | * pathname to the user.) | |
1341 | */ | |
1b6bf175 | 1342 | if (ctx->inode_bad_map && |
c5d2f50d | 1343 | ext2fs_test_inode_bitmap2(ctx->inode_bad_map, |
3839e657 | 1344 | dirent->inode)) { |
e72a9ba3 | 1345 | if (e2fsck_process_bad_inode(ctx, ino, |
bcf9c5d4 TT |
1346 | dirent->inode, |
1347 | buf + fs->blocksize)) { | |
3839e657 TT |
1348 | dirent->inode = 0; |
1349 | dir_modified++; | |
1350 | goto next; | |
1351 | } | |
a02ce9df | 1352 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK) |
08b21301 | 1353 | return DIRENT_ABORT; |
3839e657 TT |
1354 | } |
1355 | ||
49a7360b JS |
1356 | group = ext2fs_group_of_ino(fs, dirent->inode); |
1357 | first_unused_inode = group * fs->super->s_inodes_per_group + | |
1358 | 1 + fs->super->s_inodes_per_group - | |
d7cca6b0 | 1359 | ext2fs_bg_itable_unused(fs, group); |
49a7360b JS |
1360 | cd->pctx.group = group; |
1361 | ||
1362 | /* | |
42e89ce7 TT |
1363 | * Check if the inode was missed out because |
1364 | * _INODE_UNINIT flag was set or bg_itable_unused was | |
1365 | * incorrect. If so, clear the _INODE_UNINIT flag and | |
1366 | * restart e2fsck. In the future it would be nice if | |
1367 | * we could call a function in pass1.c that checks the | |
1368 | * newly visible inodes. | |
49a7360b | 1369 | */ |
cd65a24e | 1370 | if (ext2fs_bg_flags_test(fs, group, EXT2_BG_INODE_UNINIT)) { |
6267ee49 | 1371 | pctx.num = dirent->inode; |
49a7360b JS |
1372 | if (fix_problem(ctx, PR_2_INOREF_BG_INO_UNINIT, |
1373 | &cd->pctx)){ | |
e633b58a | 1374 | ext2fs_bg_flags_clear(fs, group, |
732c8cd5 | 1375 | EXT2_BG_INODE_UNINIT); |
42e89ce7 | 1376 | ext2fs_mark_super_dirty(fs); |
6267ee49 | 1377 | ctx->flags |= E2F_FLAG_RESTART_LATER; |
49a7360b JS |
1378 | } else { |
1379 | ext2fs_unmark_valid(fs); | |
1380 | if (problem == PR_2_BAD_INO) | |
1381 | goto next; | |
1382 | } | |
1383 | } else if (dirent->inode >= first_unused_inode) { | |
6267ee49 | 1384 | pctx.num = dirent->inode; |
49a7360b | 1385 | if (fix_problem(ctx, PR_2_INOREF_IN_UNUSED, &cd->pctx)){ |
d7cca6b0 | 1386 | ext2fs_bg_itable_unused_set(fs, group, 0); |
49a7360b | 1387 | ext2fs_mark_super_dirty(fs); |
6267ee49 | 1388 | ctx->flags |= E2F_FLAG_RESTART_LATER; |
49a7360b JS |
1389 | } else { |
1390 | ext2fs_unmark_valid(fs); | |
1391 | if (problem == PR_2_BAD_INO) | |
1392 | goto next; | |
1393 | } | |
1394 | } | |
1395 | ||
0433c1f1 TT |
1396 | /* |
1397 | * Offer to clear unused inodes; if we are going to be | |
1398 | * restarting the scan due to bg_itable_unused being | |
1399 | * wrong, then don't clear any inodes to avoid zapping | |
1400 | * inodes that were skipped during pass1 due to an | |
1401 | * incorrect bg_itable_unused; we'll get any real | |
1402 | * problems after we restart. | |
1403 | */ | |
1404 | if (!(ctx->flags & E2F_FLAG_RESTART_LATER) && | |
97d26ce9 TT |
1405 | !(ext2fs_test_inode_bitmap2(ctx->inode_used_map, |
1406 | dirent->inode))) | |
49a7360b | 1407 | problem = PR_2_UNUSED_INODE; |
49a7360b JS |
1408 | |
1409 | if (problem) { | |
1410 | if (fix_problem(ctx, problem, &cd->pctx)) { | |
1411 | dirent->inode = 0; | |
1412 | dir_modified++; | |
1413 | goto next; | |
1414 | } else { | |
1415 | ext2fs_unmark_valid(fs); | |
1416 | if (problem == PR_2_BAD_INO) | |
1417 | goto next; | |
1418 | } | |
1419 | } | |
1420 | ||
25f291c9 | 1421 | if (!encrypted && check_name(ctx, dirent, &cd->pctx)) |
1b6bf175 TT |
1422 | dir_modified++; |
1423 | ||
e3dd5c6f TT |
1424 | if (encrypted && (dot_state) > 1 && |
1425 | encrypted_check_name(ctx, dirent, &cd->pctx)) { | |
1426 | dir_modified++; | |
1427 | goto next; | |
1428 | } | |
1429 | ||
aa4115a4 TT |
1430 | if (check_filetype(ctx, dirent, ino, &cd->pctx)) |
1431 | dir_modified++; | |
1432 | ||
8fdc9985 | 1433 | if (dx_db) { |
28b44ef0 GKB |
1434 | if (dx_dir->casefolded_hash) |
1435 | hash_flags = EXT4_CASEFOLD_FL; | |
1436 | ||
1437 | ext2fs_dirhash2(dx_dir->hashversion, dirent->name, | |
1438 | ext2fs_dirent_name_len(dirent), | |
1439 | fs->encoding, hash_flags, | |
1440 | fs->super->s_hash_seed, &hash, 0); | |
8fdc9985 TT |
1441 | if (hash < dx_db->min_hash) |
1442 | dx_db->min_hash = hash; | |
1443 | if (hash > dx_db->max_hash) | |
1444 | dx_db->max_hash = hash; | |
1445 | } | |
8fdc9985 | 1446 | |
3839e657 TT |
1447 | /* |
1448 | * If this is a directory, then mark its parent in its | |
1449 | * dir_info structure. If the parent field is already | |
1450 | * filled in, then this directory has more than one | |
1451 | * hard link. We assume the first link is correct, | |
1452 | * and ask the user if he/she wants to clear this one. | |
1453 | */ | |
e70ae99e | 1454 | if ((dot_state > 1) && |
c5d2f50d | 1455 | (ext2fs_test_inode_bitmap2(ctx->inode_dir_map, |
3839e657 | 1456 | dirent->inode))) { |
28db82a8 TT |
1457 | if (e2fsck_dir_info_get_parent(ctx, dirent->inode, |
1458 | &subdir_parent)) { | |
1b6bf175 TT |
1459 | cd->pctx.ino = dirent->inode; |
1460 | fix_problem(ctx, PR_2_NO_DIRINFO, &cd->pctx); | |
0926668d | 1461 | goto abort_free_dict; |
3839e657 | 1462 | } |
28db82a8 TT |
1463 | if (subdir_parent) { |
1464 | cd->pctx.ino2 = subdir_parent; | |
1b6bf175 | 1465 | if (fix_problem(ctx, PR_2_LINK_DIR, |
21c84b71 | 1466 | &cd->pctx)) { |
3839e657 TT |
1467 | dirent->inode = 0; |
1468 | dir_modified++; | |
1469 | goto next; | |
21c84b71 TT |
1470 | } |
1471 | cd->pctx.ino2 = 0; | |
28db82a8 | 1472 | } else { |
efc6f628 | 1473 | (void) e2fsck_dir_info_set_parent(ctx, |
28db82a8 TT |
1474 | dirent->inode, ino); |
1475 | } | |
3839e657 | 1476 | } |
0926668d TT |
1477 | |
1478 | if (dups_found) { | |
1479 | ; | |
1480 | } else if (dict_lookup(&de_dict, dirent)) { | |
1481 | clear_problem_context(&pctx); | |
1482 | pctx.ino = ino; | |
1483 | pctx.dirent = dirent; | |
1484 | fix_problem(ctx, PR_2_REPORT_DUP_DIRENT, &pctx); | |
e8548796 | 1485 | e2fsck_rehash_dir_later(ctx, ino); |
0926668d TT |
1486 | dups_found++; |
1487 | } else | |
1488 | dict_alloc_insert(&de_dict, dirent, dirent); | |
efc6f628 | 1489 | |
1b6bf175 TT |
1490 | ext2fs_icount_increment(ctx->inode_count, dirent->inode, |
1491 | &links); | |
21c84b71 | 1492 | if (links > 1) |
1b6bf175 TT |
1493 | ctx->fs_links_count++; |
1494 | ctx->fs_total_count++; | |
3839e657 | 1495 | next: |
e70ae99e | 1496 | prev = dirent; |
5dd77dbe | 1497 | if (dir_modified) |
8a480350 | 1498 | (void) ext2fs_get_rec_len(fs, dirent, &rec_len); |
6582dbe9 ZL |
1499 | if (!inline_data_size || dot_state > 1) { |
1500 | offset += rec_len; | |
1501 | } else { | |
6698374c | 1502 | if (dot_state == 1) { |
6582dbe9 | 1503 | offset = 4; |
6698374c DW |
1504 | /* |
1505 | * If we get here, we're checking an inline | |
1506 | * directory and we've just checked a (fake) | |
1507 | * dotdot entry that we created on the stack. | |
1508 | * Therefore set 'prev' to NULL so that if we | |
1509 | * call salvage_directory on the next entry, | |
1510 | * it won't try to absorb the next entry into | |
1511 | * the on-stack dotdot entry. | |
1512 | */ | |
1513 | prev = NULL; | |
1514 | } | |
6582dbe9 | 1515 | } |
e70ae99e | 1516 | dot_state++; |
0ac4b397 | 1517 | } while (offset < max_block_size); |
3839e657 TT |
1518 | #if 0 |
1519 | printf("\n"); | |
1520 | #endif | |
8fdc9985 TT |
1521 | if (dx_db) { |
1522 | #ifdef DX_DEBUG | |
1523 | printf("db_block %d, type %d, min_hash 0x%0x, max_hash 0x%0x\n", | |
1524 | db->blockcnt, dx_db->type, | |
1525 | dx_db->min_hash, dx_db->max_hash); | |
1526 | #endif | |
b7a00563 | 1527 | cd->pctx.dir = cd->pctx.ino; |
8fdc9985 TT |
1528 | if ((dx_db->type == DX_DIRBLOCK_ROOT) || |
1529 | (dx_db->type == DX_DIRBLOCK_NODE)) | |
81683c6a | 1530 | parse_int_node(fs, db, cd, dx_dir, buf, failed_csum); |
8fdc9985 | 1531 | } |
e8548796 | 1532 | |
0ac4b397 DW |
1533 | if (offset != max_block_size) { |
1534 | cd->pctx.num = rec_len + offset - max_block_size; | |
1535 | if (fix_problem(ctx, PR_2_FINAL_RECLEN, &cd->pctx)) { | |
1536 | dirent->rec_len = cd->pctx.num; | |
1537 | dir_modified++; | |
1b6bf175 | 1538 | } |
3839e657 TT |
1539 | } |
1540 | if (dir_modified) { | |
2e9d8391 | 1541 | int flags, will_rehash; |
e8548796 | 1542 | /* leaf block with no tail? Rehash dirs later. */ |
86f3b6cf | 1543 | if (ext2fs_has_feature_metadata_csum(fs->super) && |
e8548796 | 1544 | is_leaf && |
17641bf2 DW |
1545 | !inline_data_size && |
1546 | !ext2fs_dirent_has_tail(fs, (struct ext2_dir_entry *)buf)) { | |
1547 | if (insert_dirent_tail(fs, buf) == 0) | |
1548 | goto write_and_fix; | |
e8548796 | 1549 | e2fsck_rehash_dir_later(ctx, ino); |
17641bf2 | 1550 | } |
e8548796 DW |
1551 | |
1552 | write_and_fix: | |
2e9d8391 DW |
1553 | will_rehash = e2fsck_dir_will_be_rehashed(ctx, ino); |
1554 | if (will_rehash) { | |
1555 | flags = ctx->fs->flags; | |
e8548796 | 1556 | ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS; |
2e9d8391 | 1557 | } |
6582dbe9 | 1558 | if (inline_data_size) { |
0ac4b397 | 1559 | buf = ibuf; |
cd971869 | 1560 | #ifdef WORDS_BIGENDIAN |
0ac4b397 DW |
1561 | if (db->blockcnt) |
1562 | goto skip_first_write_swab; | |
cd971869 DW |
1563 | *((__u32 *)buf) = ext2fs_le32_to_cpu(*((__u32 *)buf)); |
1564 | cd->pctx.errcode = ext2fs_dirent_swab_out2(fs, | |
1565 | buf + EXT4_INLINE_DATA_DOTDOT_SIZE, | |
0ac4b397 | 1566 | EXT4_MIN_INLINE_DATA_SIZE - |
cd971869 DW |
1567 | EXT4_INLINE_DATA_DOTDOT_SIZE, |
1568 | 0); | |
0ac4b397 DW |
1569 | if (cd->pctx.errcode) |
1570 | goto skip_second_write_swab; | |
1571 | skip_first_write_swab: | |
1572 | if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE || | |
1573 | !db->blockcnt) | |
1574 | goto skip_second_write_swab; | |
1575 | cd->pctx.errcode = ext2fs_dirent_swab_out2(fs, | |
1576 | buf + EXT4_MIN_INLINE_DATA_SIZE, | |
1577 | inline_data_size - | |
1578 | EXT4_MIN_INLINE_DATA_SIZE, | |
1579 | 0); | |
1580 | skip_second_write_swab: | |
cd971869 DW |
1581 | if (cd->pctx.errcode && |
1582 | !fix_problem(ctx, PR_2_WRITE_DIRBLOCK, &cd->pctx)) | |
1583 | goto abort_free_dict; | |
1584 | #endif | |
6582dbe9 ZL |
1585 | cd->pctx.errcode = |
1586 | ext2fs_inline_data_set(fs, ino, 0, buf, | |
1587 | inline_data_size); | |
1588 | } else | |
1589 | cd->pctx.errcode = ext2fs_write_dir_block4(fs, block_nr, | |
1590 | buf, 0, ino); | |
2e9d8391 DW |
1591 | if (will_rehash) |
1592 | ctx->fs->flags = (flags & | |
1593 | EXT2_FLAG_IGNORE_CSUM_ERRORS) | | |
1594 | (ctx->fs->flags & | |
1595 | ~EXT2_FLAG_IGNORE_CSUM_ERRORS); | |
1b6bf175 | 1596 | if (cd->pctx.errcode) { |
08b21301 | 1597 | if (!fix_problem(ctx, PR_2_WRITE_DIRBLOCK, |
0926668d TT |
1598 | &cd->pctx)) |
1599 | goto abort_free_dict; | |
3839e657 TT |
1600 | } |
1601 | ext2fs_mark_changed(fs); | |
e8548796 DW |
1602 | } else if (is_leaf && failed_csum && !dir_modified) { |
1603 | /* | |
1604 | * If a leaf node that fails csum makes it this far without | |
1605 | * alteration, ask the user if the checksum should be fixed. | |
1606 | */ | |
1607 | if (fix_problem(ctx, PR_2_LEAF_NODE_ONLY_CSUM_INVALID, | |
1608 | &cd->pctx)) | |
1609 | goto write_and_fix; | |
3839e657 | 1610 | } |
0926668d | 1611 | dict_free_nodes(&de_dict); |
3839e657 | 1612 | return 0; |
0926668d | 1613 | abort_free_dict: |
0926668d | 1614 | ctx->flags |= E2F_FLAG_ABORT; |
49a7360b | 1615 | dict_free_nodes(&de_dict); |
0926668d | 1616 | return DIRENT_ABORT; |
3839e657 TT |
1617 | } |
1618 | ||
624e4a64 AK |
1619 | struct del_block { |
1620 | e2fsck_t ctx; | |
1621 | e2_blkcnt_t num; | |
9d248022 | 1622 | blk64_t last_cluster; |
624e4a64 AK |
1623 | }; |
1624 | ||
3839e657 TT |
1625 | /* |
1626 | * This function is called to deallocate a block, and is an interator | |
1627 | * functioned called by deallocate inode via ext2fs_iterate_block(). | |
1628 | */ | |
1629 | static int deallocate_inode_block(ext2_filsys fs, | |
6dc64392 | 1630 | blk64_t *block_nr, |
54434927 | 1631 | e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), |
6dc64392 | 1632 | blk64_t ref_block EXT2FS_ATTR((unused)), |
54434927 | 1633 | int ref_offset EXT2FS_ATTR((unused)), |
133a56dc | 1634 | void *priv_data) |
3839e657 | 1635 | { |
624e4a64 | 1636 | struct del_block *p = priv_data; |
9d248022 | 1637 | blk64_t cluster = EXT2FS_B2C(fs, *block_nr); |
efc6f628 | 1638 | |
4a05268c | 1639 | if (*block_nr == 0) |
3839e657 | 1640 | return 0; |
9d248022 | 1641 | |
1642 | if (cluster == p->last_cluster) | |
1643 | return 0; | |
1644 | ||
1645 | p->last_cluster = cluster; | |
1ba7a2f2 | 1646 | if ((*block_nr < fs->super->s_first_data_block) || |
4efbac6f | 1647 | (*block_nr >= ext2fs_blocks_count(fs->super))) |
1ba7a2f2 | 1648 | return 0; |
9d248022 | 1649 | |
1650 | ext2fs_block_alloc_stats2(fs, *block_nr, -1); | |
624e4a64 | 1651 | p->num++; |
3839e657 TT |
1652 | return 0; |
1653 | } | |
efc6f628 | 1654 | |
3839e657 | 1655 | /* |
055866d8 | 1656 | * This function deallocates an inode |
3839e657 | 1657 | */ |
4035f40b | 1658 | static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf) |
3839e657 | 1659 | { |
1b6bf175 | 1660 | ext2_filsys fs = ctx->fs; |
3839e657 | 1661 | struct ext2_inode inode; |
1b6bf175 | 1662 | struct problem_context pctx; |
0684a4f3 | 1663 | __u32 count; |
624e4a64 | 1664 | struct del_block del_block; |
efc6f628 | 1665 | |
08b21301 | 1666 | e2fsck_read_inode(ctx, ino, &inode, "deallocate_inode"); |
1b6bf175 TT |
1667 | clear_problem_context(&pctx); |
1668 | pctx.ino = ino; | |
f3db3566 | 1669 | |
3839e657 TT |
1670 | /* |
1671 | * Fix up the bitmaps... | |
1672 | */ | |
f8188fff | 1673 | e2fsck_read_bitmaps(ctx); |
0684a4f3 TT |
1674 | ext2fs_inode_alloc_stats2(fs, ino, -1, LINUX_S_ISDIR(inode.i_mode)); |
1675 | ||
0c80c44b | 1676 | if (ext2fs_file_acl_block(fs, &inode) && |
86f3b6cf | 1677 | ext2fs_has_feature_xattr(fs->super)) { |
39f5659a DW |
1678 | pctx.errcode = ext2fs_adjust_ea_refcount3(fs, |
1679 | ext2fs_file_acl_block(fs, &inode), | |
1680 | block_buf, -1, &count, ino); | |
0684a4f3 TT |
1681 | if (pctx.errcode == EXT2_ET_BAD_EA_BLOCK_NUM) { |
1682 | pctx.errcode = 0; | |
1683 | count = 1; | |
1684 | } | |
1685 | if (pctx.errcode) { | |
0c80c44b | 1686 | pctx.blk = ext2fs_file_acl_block(fs, &inode); |
0684a4f3 TT |
1687 | fix_problem(ctx, PR_2_ADJ_EA_REFCOUNT, &pctx); |
1688 | ctx->flags |= E2F_FLAG_ABORT; | |
1689 | return; | |
1690 | } | |
1691 | if (count == 0) { | |
48f23054 | 1692 | ext2fs_block_alloc_stats2(fs, |
0c80c44b | 1693 | ext2fs_file_acl_block(fs, &inode), -1); |
0684a4f3 | 1694 | } |
0c80c44b | 1695 | ext2fs_file_acl_block_set(fs, &inode, 0); |
0684a4f3 | 1696 | } |
3839e657 | 1697 | |
0c80c44b | 1698 | if (!ext2fs_inode_has_valid_blocks2(fs, &inode)) |
c8ec2bad | 1699 | goto clear_inode; |
a4742691 | 1700 | |
2ece8390 DW |
1701 | /* Inline data inodes don't have blocks to iterate */ |
1702 | if (inode.i_flags & EXT4_INLINE_DATA_FL) | |
1703 | goto clear_inode; | |
1704 | ||
3b6c0938 DW |
1705 | if (LINUX_S_ISREG(inode.i_mode) && |
1706 | ext2fs_needs_large_file_feature(EXT2_I_SIZE(&inode))) | |
a4742691 TT |
1707 | ctx->large_files--; |
1708 | ||
624e4a64 AK |
1709 | del_block.ctx = ctx; |
1710 | del_block.num = 0; | |
9d248022 | 1711 | del_block.last_cluster = 0; |
6dc64392 | 1712 | pctx.errcode = ext2fs_block_iterate3(fs, ino, 0, block_buf, |
624e4a64 AK |
1713 | deallocate_inode_block, |
1714 | &del_block); | |
1b6bf175 TT |
1715 | if (pctx.errcode) { |
1716 | fix_problem(ctx, PR_2_DEALLOC_INODE, &pctx); | |
08b21301 TT |
1717 | ctx->flags |= E2F_FLAG_ABORT; |
1718 | return; | |
1b6bf175 | 1719 | } |
c8ec2bad TT |
1720 | clear_inode: |
1721 | /* Inode may have changed by block_iterate, so reread it */ | |
1722 | e2fsck_read_inode(ctx, ino, &inode, "deallocate_inode"); | |
1723 | e2fsck_clear_inode(ctx, ino, &inode, 0, "deallocate_inode"); | |
3839e657 TT |
1724 | } |
1725 | ||
8fdc9985 | 1726 | /* |
055866d8 | 1727 | * This function clears the htree flag on an inode |
8fdc9985 TT |
1728 | */ |
1729 | static void clear_htree(e2fsck_t ctx, ext2_ino_t ino) | |
1730 | { | |
1731 | struct ext2_inode inode; | |
efc6f628 | 1732 | |
8fdc9985 TT |
1733 | e2fsck_read_inode(ctx, ino, &inode, "clear_htree"); |
1734 | inode.i_flags = inode.i_flags & ~EXT2_INDEX_FL; | |
1735 | e2fsck_write_inode(ctx, ino, &inode, "clear_htree"); | |
b7a00563 TT |
1736 | if (ctx->dirs_to_hash) |
1737 | ext2fs_u32_list_add(ctx->dirs_to_hash, ino); | |
8fdc9985 TT |
1738 | } |
1739 | ||
1740 | ||
f404167d TT |
1741 | int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir, |
1742 | ext2_ino_t ino, char *buf) | |
3839e657 | 1743 | { |
1b6bf175 | 1744 | ext2_filsys fs = ctx->fs; |
3839e657 | 1745 | struct ext2_inode inode; |
3839e657 | 1746 | int inode_modified = 0; |
6c313fd4 | 1747 | int not_fixed = 0; |
1e3472c5 | 1748 | unsigned char *frag, *fsize; |
21c84b71 | 1749 | struct problem_context pctx; |
3c7c6d73 | 1750 | problem_t problem = 0; |
3839e657 | 1751 | |
08b21301 | 1752 | e2fsck_read_inode(ctx, ino, &inode, "process_bad_inode"); |
21c84b71 TT |
1753 | |
1754 | clear_problem_context(&pctx); | |
1755 | pctx.ino = ino; | |
1756 | pctx.dir = dir; | |
1757 | pctx.inode = &inode; | |
1758 | ||
0c80c44b | 1759 | if (ext2fs_file_acl_block(fs, &inode) && |
86f3b6cf | 1760 | !ext2fs_has_feature_xattr(fs->super)) { |
f76344fb | 1761 | if (fix_problem(ctx, PR_2_FILE_ACL_ZERO, &pctx)) { |
0c80c44b | 1762 | ext2fs_file_acl_block_set(fs, &inode, 0); |
f76344fb TT |
1763 | inode_modified++; |
1764 | } else | |
1765 | not_fixed++; | |
1766 | } | |
6c313fd4 | 1767 | |
50e1e10f TT |
1768 | if (!LINUX_S_ISDIR(inode.i_mode) && !LINUX_S_ISREG(inode.i_mode) && |
1769 | !LINUX_S_ISCHR(inode.i_mode) && !LINUX_S_ISBLK(inode.i_mode) && | |
1770 | !LINUX_S_ISLNK(inode.i_mode) && !LINUX_S_ISFIFO(inode.i_mode) && | |
08b21301 TT |
1771 | !(LINUX_S_ISSOCK(inode.i_mode))) |
1772 | problem = PR_2_BAD_MODE; | |
fdbdea09 | 1773 | else if (LINUX_S_ISCHR(inode.i_mode) |
0684a4f3 | 1774 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
08b21301 | 1775 | problem = PR_2_BAD_CHAR_DEV; |
fdbdea09 | 1776 | else if (LINUX_S_ISBLK(inode.i_mode) |
0684a4f3 | 1777 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
08b21301 | 1778 | problem = PR_2_BAD_BLOCK_DEV; |
fdbdea09 | 1779 | else if (LINUX_S_ISFIFO(inode.i_mode) |
0684a4f3 | 1780 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
1dde43f0 | 1781 | problem = PR_2_BAD_FIFO; |
fdbdea09 | 1782 | else if (LINUX_S_ISSOCK(inode.i_mode) |
0684a4f3 | 1783 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
1dde43f0 | 1784 | problem = PR_2_BAD_SOCKET; |
fdbdea09 | 1785 | else if (LINUX_S_ISLNK(inode.i_mode) |
7cadc577 | 1786 | && !e2fsck_pass1_check_symlink(fs, ino, &inode, buf)) { |
bcf9c5d4 | 1787 | problem = PR_2_INVALID_SYMLINK; |
67052a8a | 1788 | } |
1dde43f0 | 1789 | |
08b21301 TT |
1790 | if (problem) { |
1791 | if (fix_problem(ctx, problem, &pctx)) { | |
1b6bf175 | 1792 | deallocate_inode(ctx, ino, 0); |
a02ce9df | 1793 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK) |
08b21301 | 1794 | return 0; |
7cf73dcd | 1795 | return 1; |
6c313fd4 TT |
1796 | } else |
1797 | not_fixed++; | |
08b21301 | 1798 | problem = 0; |
7cf73dcd | 1799 | } |
efc6f628 | 1800 | |
6c313fd4 TT |
1801 | if (inode.i_faddr) { |
1802 | if (fix_problem(ctx, PR_2_FADDR_ZERO, &pctx)) { | |
1803 | inode.i_faddr = 0; | |
1804 | inode_modified++; | |
1805 | } else | |
1806 | not_fixed++; | |
3839e657 | 1807 | } |
1e3472c5 TT |
1808 | |
1809 | switch (fs->super->s_creator_os) { | |
1e3472c5 TT |
1810 | case EXT2_OS_HURD: |
1811 | frag = &inode.osd2.hurd2.h_i_frag; | |
1812 | fsize = &inode.osd2.hurd2.h_i_fsize; | |
1813 | break; | |
1e3472c5 TT |
1814 | default: |
1815 | frag = fsize = 0; | |
1816 | } | |
21c84b71 TT |
1817 | if (frag && *frag) { |
1818 | pctx.num = *frag; | |
1b6bf175 | 1819 | if (fix_problem(ctx, PR_2_FRAG_ZERO, &pctx)) { |
21c84b71 TT |
1820 | *frag = 0; |
1821 | inode_modified++; | |
7e0282c5 TT |
1822 | } else |
1823 | not_fixed++; | |
21c84b71 TT |
1824 | pctx.num = 0; |
1825 | } | |
1826 | if (fsize && *fsize) { | |
1827 | pctx.num = *fsize; | |
1b6bf175 | 1828 | if (fix_problem(ctx, PR_2_FSIZE_ZERO, &pctx)) { |
21c84b71 TT |
1829 | *fsize = 0; |
1830 | inode_modified++; | |
6c313fd4 TT |
1831 | } else |
1832 | not_fixed++; | |
21c84b71 TT |
1833 | pctx.num = 0; |
1834 | } | |
1835 | ||
5d17119d | 1836 | if ((fs->super->s_creator_os == EXT2_OS_LINUX) && |
86f3b6cf | 1837 | !ext2fs_has_feature_huge_file(fs->super) && |
5d17119d TT |
1838 | (inode.osd2.linux2.l_i_blocks_hi != 0)) { |
1839 | pctx.num = inode.osd2.linux2.l_i_blocks_hi; | |
1840 | if (fix_problem(ctx, PR_2_BLOCKS_HI_ZERO, &pctx)) { | |
1841 | inode.osd2.linux2.l_i_blocks_hi = 0; | |
1842 | inode_modified++; | |
1843 | } | |
1844 | } | |
1845 | ||
36769c60 | 1846 | if ((fs->super->s_creator_os == EXT2_OS_LINUX) && |
86f3b6cf | 1847 | !ext2fs_has_feature_64bit(fs->super) && |
911ec626 TT |
1848 | inode.osd2.linux2.l_i_file_acl_high != 0) { |
1849 | pctx.num = inode.osd2.linux2.l_i_file_acl_high; | |
1850 | if (fix_problem(ctx, PR_2_I_FILE_ACL_HI_ZERO, &pctx)) { | |
1851 | inode.osd2.linux2.l_i_file_acl_high = 0; | |
1852 | inode_modified++; | |
1853 | } else | |
1854 | not_fixed++; | |
1855 | } | |
1856 | ||
0c80c44b TT |
1857 | if (ext2fs_file_acl_block(fs, &inode) && |
1858 | ((ext2fs_file_acl_block(fs, &inode) < fs->super->s_first_data_block) || | |
1859 | (ext2fs_file_acl_block(fs, &inode) >= ext2fs_blocks_count(fs->super)))) { | |
6c313fd4 | 1860 | if (fix_problem(ctx, PR_2_FILE_ACL_BAD, &pctx)) { |
0c80c44b | 1861 | ext2fs_file_acl_block_set(fs, &inode, 0); |
6c313fd4 TT |
1862 | inode_modified++; |
1863 | } else | |
1864 | not_fixed++; | |
342d847d | 1865 | } |
3f0cf647 | 1866 | if (inode.i_size_high && !ext2fs_has_feature_largedir(fs->super) && |
6c313fd4 | 1867 | LINUX_S_ISDIR(inode.i_mode)) { |
578fcbfd AB |
1868 | if (fix_problem(ctx, PR_2_DIR_SIZE_HIGH_ZERO, &pctx)) { |
1869 | inode.i_size_high = 0; | |
6c313fd4 TT |
1870 | inode_modified++; |
1871 | } else | |
1872 | not_fixed++; | |
21c84b71 | 1873 | } |
6c313fd4 | 1874 | |
f3db3566 | 1875 | if (inode_modified) |
08b21301 | 1876 | e2fsck_write_inode(ctx, ino, &inode, "process_bad_inode"); |
f76344fb | 1877 | if (!not_fixed && ctx->inode_bad_map) |
c5d2f50d | 1878 | ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino); |
3839e657 TT |
1879 | return 0; |
1880 | } | |
1881 | ||
50e1e10f TT |
1882 | /* |
1883 | * allocate_dir_block --- this function allocates a new directory | |
1884 | * block for a particular inode; this is done if a directory has | |
1885 | * a "hole" in it, or if a directory has a illegal block number | |
1886 | * that was zeroed out and now needs to be replaced. | |
1887 | */ | |
1b6bf175 | 1888 | static int allocate_dir_block(e2fsck_t ctx, |
6dc64392 | 1889 | struct ext2_db_entry2 *db, |
efc6f628 | 1890 | char *buf EXT2FS_ATTR((unused)), |
54434927 | 1891 | struct problem_context *pctx) |
50e1e10f | 1892 | { |
1b6bf175 | 1893 | ext2_filsys fs = ctx->fs; |
ff11309e | 1894 | blk64_t blk = 0; |
50e1e10f TT |
1895 | char *block; |
1896 | struct ext2_inode inode; | |
50e1e10f | 1897 | |
1b6bf175 | 1898 | if (fix_problem(ctx, PR_2_DIRECTORY_HOLE, pctx) == 0) |
50e1e10f TT |
1899 | return 1; |
1900 | ||
1901 | /* | |
1902 | * Read the inode and block bitmaps in; we'll be messing with | |
1903 | * them. | |
1904 | */ | |
f8188fff | 1905 | e2fsck_read_bitmaps(ctx); |
efc6f628 | 1906 | |
50e1e10f TT |
1907 | /* |
1908 | * First, find a free block | |
1909 | */ | |
ff11309e DW |
1910 | e2fsck_read_inode(ctx, db->ino, &inode, "allocate_dir_block"); |
1911 | pctx->errcode = ext2fs_map_cluster_block(fs, db->ino, &inode, | |
1912 | db->blockcnt, &blk); | |
1913 | if (pctx->errcode || blk == 0) { | |
7b486ec0 DW |
1914 | blk = ext2fs_find_inode_goal(fs, db->ino, &inode, db->blockcnt); |
1915 | pctx->errcode = ext2fs_new_block2(fs, blk, | |
ff11309e DW |
1916 | ctx->block_found_map, &blk); |
1917 | if (pctx->errcode) { | |
1918 | pctx->str = "ext2fs_new_block"; | |
1919 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
1920 | return 1; | |
1921 | } | |
50e1e10f | 1922 | } |
c5d2f50d VAH |
1923 | ext2fs_mark_block_bitmap2(ctx->block_found_map, blk); |
1924 | ext2fs_mark_block_bitmap2(fs->block_map, blk); | |
50e1e10f TT |
1925 | ext2fs_mark_bb_dirty(fs); |
1926 | ||
1927 | /* | |
1928 | * Now let's create the actual data block for the inode | |
1929 | */ | |
1930 | if (db->blockcnt) | |
1b6bf175 | 1931 | pctx->errcode = ext2fs_new_dir_block(fs, 0, 0, &block); |
50e1e10f | 1932 | else |
1b6bf175 TT |
1933 | pctx->errcode = ext2fs_new_dir_block(fs, db->ino, |
1934 | EXT2_ROOT_INO, &block); | |
50e1e10f | 1935 | |
1b6bf175 TT |
1936 | if (pctx->errcode) { |
1937 | pctx->str = "ext2fs_new_dir_block"; | |
1938 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
50e1e10f TT |
1939 | return 1; |
1940 | } | |
1941 | ||
81683c6a | 1942 | pctx->errcode = ext2fs_write_dir_block4(fs, blk, block, 0, db->ino); |
c4e3d3f3 | 1943 | ext2fs_free_mem(&block); |
1b6bf175 TT |
1944 | if (pctx->errcode) { |
1945 | pctx->str = "ext2fs_write_dir_block"; | |
1946 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
50e1e10f TT |
1947 | return 1; |
1948 | } | |
1949 | ||
1950 | /* | |
1951 | * Update the inode block count | |
1952 | */ | |
1ca1059f | 1953 | ext2fs_iblk_add_blocks(fs, &inode, 1); |
62f9bd0e | 1954 | if (EXT2_I_SIZE(&inode) < ((__u64) db->blockcnt+1) * fs->blocksize) { |
97c607b1 DW |
1955 | pctx->errcode = ext2fs_inode_size_set(fs, &inode, |
1956 | (db->blockcnt+1) * fs->blocksize); | |
1957 | if (pctx->errcode) { | |
1958 | pctx->str = "ext2fs_inode_size_set"; | |
1959 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
1960 | return 1; | |
1961 | } | |
1962 | } | |
08b21301 | 1963 | e2fsck_write_inode(ctx, db->ino, &inode, "allocate_dir_block"); |
50e1e10f TT |
1964 | |
1965 | /* | |
1966 | * Finally, update the block pointers for the inode | |
1967 | */ | |
1968 | db->blk = blk; | |
2d07b3ad TT |
1969 | pctx->errcode = ext2fs_bmap2(fs, db->ino, &inode, 0, BMAP_SET, |
1970 | db->blockcnt, 0, &blk); | |
1b6bf175 TT |
1971 | if (pctx->errcode) { |
1972 | pctx->str = "ext2fs_block_iterate"; | |
1973 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
50e1e10f TT |
1974 | return 1; |
1975 | } | |
1976 | ||
1977 | return 0; | |
1978 | } |