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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() */ |
48e6e813 TT |
45 | #include <string.h> |
46 | ||
3839e657 | 47 | #include "e2fsck.h" |
21c84b71 | 48 | #include "problem.h" |
0926668d | 49 | #include "dict.h" |
3839e657 | 50 | |
aa4115a4 TT |
51 | #ifdef NO_INLINE_FUNCS |
52 | #define _INLINE_ | |
53 | #else | |
54 | #define _INLINE_ inline | |
55 | #endif | |
56 | ||
ad4fa466 | 57 | /* #define DX_DEBUG */ |
8fdc9985 | 58 | |
3839e657 TT |
59 | /* |
60 | * Keeps track of how many times an inode is referenced. | |
61 | */ | |
4035f40b | 62 | static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf); |
3839e657 | 63 | static int check_dir_block(ext2_filsys fs, |
21c84b71 | 64 | struct ext2_db_entry *dir_blocks_info, |
54dc7ca2 | 65 | void *priv_data); |
1b6bf175 | 66 | static int allocate_dir_block(e2fsck_t ctx, |
21c84b71 TT |
67 | struct ext2_db_entry *dir_blocks_info, |
68 | char *buf, struct problem_context *pctx); | |
50e1e10f TT |
69 | static int update_dir_block(ext2_filsys fs, |
70 | blk_t *block_nr, | |
133a56dc | 71 | e2_blkcnt_t blockcnt, |
4035f40b | 72 | blk_t ref_block, |
efc6f628 | 73 | int ref_offset, |
4035f40b | 74 | void *priv_data); |
8fdc9985 | 75 | static void clear_htree(e2fsck_t ctx, ext2_ino_t ino); |
ad4fa466 TT |
76 | static int htree_depth(struct dx_dir_info *dx_dir, |
77 | struct dx_dirblock_info *dx_db); | |
ea1959f0 | 78 | static EXT2_QSORT_TYPE special_dir_block_cmp(const void *a, const void *b); |
3839e657 | 79 | |
21c84b71 TT |
80 | struct check_dir_struct { |
81 | char *buf; | |
82 | struct problem_context pctx; | |
f8188fff | 83 | int count, max; |
1b6bf175 | 84 | e2fsck_t ctx; |
efc6f628 | 85 | }; |
21c84b71 | 86 | |
08b21301 | 87 | void e2fsck_pass2(e2fsck_t ctx) |
3839e657 | 88 | { |
a4742691 TT |
89 | struct ext2_super_block *sb = ctx->fs->super; |
90 | struct problem_context pctx; | |
91 | ext2_filsys fs = ctx->fs; | |
92 | char *buf; | |
8bf191e8 | 93 | #ifdef RESOURCE_TRACK |
3839e657 | 94 | struct resource_track rtrack; |
8bf191e8 | 95 | #endif |
21c84b71 | 96 | struct check_dir_struct cd; |
8fdc9985 TT |
97 | struct dx_dir_info *dx_dir; |
98 | struct dx_dirblock_info *dx_db, *dx_parent; | |
54434927 | 99 | int b; |
ad4fa466 | 100 | int i, depth; |
8fdc9985 TT |
101 | problem_t code; |
102 | int bad_dir; | |
103 | ||
6d96b00d | 104 | init_resource_track(&rtrack, ctx->fs->io); |
1b6bf175 TT |
105 | clear_problem_context(&cd.pctx); |
106 | ||
3839e657 TT |
107 | #ifdef MTRACE |
108 | mtrace_print("Pass 2"); | |
109 | #endif | |
110 | ||
1b6bf175 TT |
111 | if (!(ctx->options & E2F_OPT_PREEN)) |
112 | fix_problem(ctx, PR_2_PASS_HEADER, &cd.pctx); | |
113 | ||
efc6f628 | 114 | e2fsck_setup_tdb_icount(ctx, EXT2_ICOUNT_OPT_INCREMENT, |
34b9f796 TT |
115 | &ctx->inode_count); |
116 | if (ctx->inode_count) | |
117 | cd.pctx.errcode = 0; | |
efc6f628 TT |
118 | else |
119 | cd.pctx.errcode = ext2fs_create_icount2(fs, | |
34b9f796 | 120 | EXT2_ICOUNT_OPT_INCREMENT, |
1b6bf175 TT |
121 | 0, ctx->inode_link_info, |
122 | &ctx->inode_count); | |
123 | if (cd.pctx.errcode) { | |
124 | fix_problem(ctx, PR_2_ALLOCATE_ICOUNT, &cd.pctx); | |
08b21301 TT |
125 | ctx->flags |= E2F_FLAG_ABORT; |
126 | return; | |
21c84b71 | 127 | } |
bcf9c5d4 | 128 | buf = (char *) e2fsck_allocate_memory(ctx, 2*fs->blocksize, |
54dc7ca2 | 129 | "directory scan buffer"); |
3839e657 | 130 | |
21c84b71 TT |
131 | /* |
132 | * Set up the parent pointer for the root directory, if | |
133 | * present. (If the root directory is not present, we will | |
134 | * create it in pass 3.) | |
135 | */ | |
28db82a8 | 136 | (void) e2fsck_dir_info_set_parent(ctx, EXT2_ROOT_INO, EXT2_ROOT_INO); |
21c84b71 TT |
137 | |
138 | cd.buf = buf; | |
1b6bf175 | 139 | cd.ctx = ctx; |
f75c28de | 140 | cd.count = 1; |
f8188fff | 141 | cd.max = ext2fs_dblist_count(fs->dblist); |
f75c28de TT |
142 | |
143 | if (ctx->progress) | |
144 | (void) (ctx->progress)(ctx, 2, 0, cd.max); | |
ea1959f0 TT |
145 | |
146 | if (fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) | |
147 | ext2fs_dblist_sort(fs->dblist, special_dir_block_cmp); | |
efc6f628 | 148 | |
1b6bf175 TT |
149 | cd.pctx.errcode = ext2fs_dblist_iterate(fs->dblist, check_dir_block, |
150 | &cd); | |
49a7360b | 151 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK || ctx->flags & E2F_FLAG_RESTART) |
08b21301 | 152 | return; |
6267ee49 AD |
153 | |
154 | if (ctx->flags & E2F_FLAG_RESTART_LATER) { | |
155 | ctx->flags |= E2F_FLAG_RESTART; | |
156 | return; | |
157 | } | |
158 | ||
1b6bf175 TT |
159 | if (cd.pctx.errcode) { |
160 | fix_problem(ctx, PR_2_DBLIST_ITERATE, &cd.pctx); | |
08b21301 TT |
161 | ctx->flags |= E2F_FLAG_ABORT; |
162 | return; | |
7ac02a5e | 163 | } |
8fdc9985 TT |
164 | |
165 | #ifdef ENABLE_HTREE | |
166 | for (i=0; (dx_dir = e2fsck_dx_dir_info_iter(ctx, &i)) != 0;) { | |
4cae0452 TT |
167 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK) |
168 | return; | |
62acaa1d | 169 | if (dx_dir->numblocks == 0) |
8fdc9985 TT |
170 | continue; |
171 | clear_problem_context(&pctx); | |
172 | bad_dir = 0; | |
173 | pctx.dir = dx_dir->ino; | |
174 | dx_db = dx_dir->dx_block; | |
175 | if (dx_db->flags & DX_FLAG_REFERENCED) | |
176 | dx_db->flags |= DX_FLAG_DUP_REF; | |
177 | else | |
178 | dx_db->flags |= DX_FLAG_REFERENCED; | |
179 | /* | |
180 | * Find all of the first and last leaf blocks, and | |
181 | * update their parent's min and max hash values | |
182 | */ | |
183 | for (b=0, dx_db = dx_dir->dx_block; | |
184 | b < dx_dir->numblocks; | |
185 | b++, dx_db++) { | |
186 | if ((dx_db->type != DX_DIRBLOCK_LEAF) || | |
187 | !(dx_db->flags & (DX_FLAG_FIRST | DX_FLAG_LAST))) | |
188 | continue; | |
189 | dx_parent = &dx_dir->dx_block[dx_db->parent]; | |
190 | /* | |
191 | * XXX Make sure dx_parent->min_hash > dx_db->min_hash | |
192 | */ | |
193 | if (dx_db->flags & DX_FLAG_FIRST) | |
194 | dx_parent->min_hash = dx_db->min_hash; | |
195 | /* | |
196 | * XXX Make sure dx_parent->max_hash < dx_db->max_hash | |
197 | */ | |
198 | if (dx_db->flags & DX_FLAG_LAST) | |
199 | dx_parent->max_hash = dx_db->max_hash; | |
200 | } | |
efc6f628 | 201 | |
8fdc9985 TT |
202 | for (b=0, dx_db = dx_dir->dx_block; |
203 | b < dx_dir->numblocks; | |
204 | b++, dx_db++) { | |
205 | pctx.blkcount = b; | |
206 | pctx.group = dx_db->parent; | |
207 | code = 0; | |
208 | if (!(dx_db->flags & DX_FLAG_FIRST) && | |
209 | (dx_db->min_hash < dx_db->node_min_hash)) { | |
210 | pctx.blk = dx_db->min_hash; | |
211 | pctx.blk2 = dx_db->node_min_hash; | |
212 | code = PR_2_HTREE_MIN_HASH; | |
213 | fix_problem(ctx, code, &pctx); | |
214 | bad_dir++; | |
215 | } | |
ad4fa466 TT |
216 | if (dx_db->type == DX_DIRBLOCK_LEAF) { |
217 | depth = htree_depth(dx_dir, dx_db); | |
218 | if (depth != dx_dir->depth) { | |
e5e12db9 | 219 | pctx.num = dx_dir->depth; |
ad4fa466 TT |
220 | code = PR_2_HTREE_BAD_DEPTH; |
221 | fix_problem(ctx, code, &pctx); | |
222 | bad_dir++; | |
223 | } | |
224 | } | |
8fdc9985 | 225 | /* |
efc6f628 | 226 | * This test doesn't apply for the root block |
8fdc9985 TT |
227 | * at block #0 |
228 | */ | |
229 | if (b && | |
230 | (dx_db->max_hash > dx_db->node_max_hash)) { | |
231 | pctx.blk = dx_db->max_hash; | |
232 | pctx.blk2 = dx_db->node_max_hash; | |
233 | code = PR_2_HTREE_MAX_HASH; | |
234 | fix_problem(ctx, code, &pctx); | |
503f9e7f | 235 | bad_dir++; |
8fdc9985 TT |
236 | } |
237 | if (!(dx_db->flags & DX_FLAG_REFERENCED)) { | |
238 | code = PR_2_HTREE_NOTREF; | |
239 | fix_problem(ctx, code, &pctx); | |
240 | bad_dir++; | |
241 | } else if (dx_db->flags & DX_FLAG_DUP_REF) { | |
242 | code = PR_2_HTREE_DUPREF; | |
243 | fix_problem(ctx, code, &pctx); | |
244 | bad_dir++; | |
245 | } | |
246 | if (code == 0) | |
247 | continue; | |
248 | } | |
249 | if (bad_dir && fix_problem(ctx, PR_2_HTREE_CLEAR, &pctx)) { | |
250 | clear_htree(ctx, dx_dir->ino); | |
62acaa1d | 251 | dx_dir->numblocks = 0; |
8fdc9985 | 252 | } |
8fdc9985 TT |
253 | } |
254 | #endif | |
c4e3d3f3 | 255 | ext2fs_free_mem(&buf); |
21c84b71 TT |
256 | ext2fs_free_dblist(fs->dblist); |
257 | ||
1b6bf175 TT |
258 | if (ctx->inode_bad_map) { |
259 | ext2fs_free_inode_bitmap(ctx->inode_bad_map); | |
260 | ctx->inode_bad_map = 0; | |
3839e657 | 261 | } |
aa4115a4 TT |
262 | if (ctx->inode_reg_map) { |
263 | ext2fs_free_inode_bitmap(ctx->inode_reg_map); | |
264 | ctx->inode_reg_map = 0; | |
265 | } | |
a4742691 TT |
266 | |
267 | clear_problem_context(&pctx); | |
268 | if (ctx->large_files) { | |
269 | if (!(sb->s_feature_ro_compat & | |
270 | EXT2_FEATURE_RO_COMPAT_LARGE_FILE) && | |
271 | fix_problem(ctx, PR_2_FEATURE_LARGE_FILES, &pctx)) { | |
272 | sb->s_feature_ro_compat |= | |
273 | EXT2_FEATURE_RO_COMPAT_LARGE_FILE; | |
0cfce7f7 | 274 | fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; |
a4742691 TT |
275 | ext2fs_mark_super_dirty(fs); |
276 | } | |
277 | if (sb->s_rev_level == EXT2_GOOD_OLD_REV && | |
278 | fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) { | |
279 | ext2fs_update_dynamic_rev(fs); | |
280 | ext2fs_mark_super_dirty(fs); | |
281 | } | |
a4742691 | 282 | } |
efc6f628 | 283 | |
9facd076 | 284 | print_resource_track(ctx, _("Pass 2"), &rtrack, fs->io); |
3839e657 TT |
285 | } |
286 | ||
ad4fa466 TT |
287 | #define MAX_DEPTH 32000 |
288 | static int htree_depth(struct dx_dir_info *dx_dir, | |
289 | struct dx_dirblock_info *dx_db) | |
290 | { | |
291 | int depth = 0; | |
292 | ||
293 | while (dx_db->type != DX_DIRBLOCK_ROOT && depth < MAX_DEPTH) { | |
294 | dx_db = &dx_dir->dx_block[dx_db->parent]; | |
295 | depth++; | |
296 | } | |
297 | return depth; | |
298 | } | |
299 | ||
0926668d TT |
300 | static int dict_de_cmp(const void *a, const void *b) |
301 | { | |
520ead37 | 302 | const struct ext2_dir_entry *de_a, *de_b; |
0926668d TT |
303 | int a_len, b_len; |
304 | ||
520ead37 | 305 | de_a = (const struct ext2_dir_entry *) a; |
0926668d | 306 | a_len = de_a->name_len & 0xFF; |
520ead37 | 307 | de_b = (const struct ext2_dir_entry *) b; |
0926668d TT |
308 | b_len = de_b->name_len & 0xFF; |
309 | ||
310 | if (a_len != b_len) | |
311 | return (a_len - b_len); | |
312 | ||
313 | return strncmp(de_a->name, de_b->name, a_len); | |
314 | } | |
ad4fa466 | 315 | |
ea1959f0 TT |
316 | /* |
317 | * This is special sort function that makes sure that directory blocks | |
318 | * with a dirblock of zero are sorted to the beginning of the list. | |
319 | * This guarantees that the root node of the htree directories are | |
320 | * processed first, so we know what hash version to use. | |
321 | */ | |
322 | static EXT2_QSORT_TYPE special_dir_block_cmp(const void *a, const void *b) | |
323 | { | |
324 | const struct ext2_db_entry *db_a = | |
325 | (const struct ext2_db_entry *) a; | |
326 | const struct ext2_db_entry *db_b = | |
327 | (const struct ext2_db_entry *) b; | |
328 | ||
329 | if (db_a->blockcnt && !db_b->blockcnt) | |
330 | return 1; | |
331 | ||
332 | if (!db_a->blockcnt && db_b->blockcnt) | |
333 | return -1; | |
efc6f628 | 334 | |
ea1959f0 TT |
335 | if (db_a->blk != db_b->blk) |
336 | return (int) (db_a->blk - db_b->blk); | |
efc6f628 | 337 | |
ea1959f0 TT |
338 | if (db_a->ino != db_b->ino) |
339 | return (int) (db_a->ino - db_b->ino); | |
340 | ||
341 | return (int) (db_a->blockcnt - db_b->blockcnt); | |
342 | } | |
343 | ||
344 | ||
3839e657 TT |
345 | /* |
346 | * Make sure the first entry in the directory is '.', and that the | |
347 | * directory entry is sane. | |
348 | */ | |
1b6bf175 | 349 | static int check_dot(e2fsck_t ctx, |
3839e657 | 350 | struct ext2_dir_entry *dirent, |
86c627ec | 351 | ext2_ino_t ino, struct problem_context *pctx) |
3839e657 TT |
352 | { |
353 | struct ext2_dir_entry *nextdir; | |
354 | int status = 0; | |
355 | int created = 0; | |
5dd77dbe | 356 | int rec_len, new_len; |
21c84b71 | 357 | int problem = 0; |
efc6f628 | 358 | |
21c84b71 TT |
359 | if (!dirent->inode) |
360 | problem = PR_2_MISSING_DOT; | |
b6f79831 | 361 | else if (((dirent->name_len & 0xFF) != 1) || |
21c84b71 TT |
362 | (dirent->name[0] != '.')) |
363 | problem = PR_2_1ST_NOT_DOT; | |
364 | else if (dirent->name[1] != '\0') | |
365 | problem = PR_2_DOT_NULL_TERM; | |
5dd77dbe TT |
366 | |
367 | rec_len = (dirent->rec_len || ctx->fs->blocksize < 65536) ? | |
368 | dirent->rec_len : 65536; | |
21c84b71 | 369 | if (problem) { |
1b6bf175 | 370 | if (fix_problem(ctx, problem, pctx)) { |
5dd77dbe TT |
371 | if (rec_len < 12) |
372 | rec_len = dirent->rec_len = 12; | |
3839e657 TT |
373 | dirent->inode = ino; |
374 | dirent->name_len = 1; | |
375 | dirent->name[0] = '.'; | |
21c84b71 | 376 | dirent->name[1] = '\0'; |
3839e657 TT |
377 | status = 1; |
378 | created = 1; | |
3839e657 TT |
379 | } |
380 | } | |
3839e657 | 381 | if (dirent->inode != ino) { |
1b6bf175 | 382 | if (fix_problem(ctx, PR_2_BAD_INODE_DOT, pctx)) { |
3839e657 TT |
383 | dirent->inode = ino; |
384 | status = 1; | |
21c84b71 | 385 | } |
3839e657 | 386 | } |
5dd77dbe TT |
387 | if (rec_len > 12) { |
388 | new_len = rec_len - 12; | |
3839e657 | 389 | if (new_len > 12) { |
3839e657 | 390 | if (created || |
f8188fff | 391 | fix_problem(ctx, PR_2_SPLIT_DOT, pctx)) { |
3839e657 TT |
392 | nextdir = (struct ext2_dir_entry *) |
393 | ((char *) dirent + 12); | |
394 | dirent->rec_len = 12; | |
395 | nextdir->rec_len = new_len; | |
396 | nextdir->inode = 0; | |
397 | nextdir->name_len = 0; | |
398 | status = 1; | |
399 | } | |
400 | } | |
401 | } | |
402 | return status; | |
403 | } | |
404 | ||
405 | /* | |
406 | * Make sure the second entry in the directory is '..', and that the | |
407 | * directory entry is sane. We do not check the inode number of '..' | |
408 | * here; this gets done in pass 3. | |
409 | */ | |
1b6bf175 | 410 | static int check_dotdot(e2fsck_t ctx, |
3839e657 | 411 | struct ext2_dir_entry *dirent, |
28db82a8 | 412 | ext2_ino_t ino, struct problem_context *pctx) |
3839e657 | 413 | { |
5dd77dbe | 414 | int rec_len, problem = 0; |
efc6f628 | 415 | |
21c84b71 TT |
416 | if (!dirent->inode) |
417 | problem = PR_2_MISSING_DOT_DOT; | |
b6f79831 | 418 | else if (((dirent->name_len & 0xFF) != 2) || |
21c84b71 TT |
419 | (dirent->name[0] != '.') || |
420 | (dirent->name[1] != '.')) | |
421 | problem = PR_2_2ND_NOT_DOT_DOT; | |
422 | else if (dirent->name[2] != '\0') | |
423 | problem = PR_2_DOT_DOT_NULL_TERM; | |
424 | ||
5dd77dbe TT |
425 | rec_len = (dirent->rec_len || ctx->fs->blocksize < 65536) ? |
426 | dirent->rec_len : 65536; | |
21c84b71 | 427 | if (problem) { |
1b6bf175 | 428 | if (fix_problem(ctx, problem, pctx)) { |
5dd77dbe | 429 | if (rec_len < 12) |
21c84b71 | 430 | dirent->rec_len = 12; |
3839e657 TT |
431 | /* |
432 | * Note: we don't have the parent inode just | |
433 | * yet, so we will fill it in with the root | |
434 | * inode. This will get fixed in pass 3. | |
435 | */ | |
436 | dirent->inode = EXT2_ROOT_INO; | |
437 | dirent->name_len = 2; | |
438 | dirent->name[0] = '.'; | |
439 | dirent->name[1] = '.'; | |
21c84b71 | 440 | dirent->name[2] = '\0'; |
3839e657 | 441 | return 1; |
efc6f628 | 442 | } |
3839e657 TT |
443 | return 0; |
444 | } | |
28db82a8 TT |
445 | if (e2fsck_dir_info_set_dotdot(ctx, ino, dirent->inode)) { |
446 | fix_problem(ctx, PR_2_NO_DIRINFO, pctx); | |
447 | return -1; | |
448 | } | |
3839e657 TT |
449 | return 0; |
450 | } | |
451 | ||
452 | /* | |
453 | * Check to make sure a directory entry doesn't contain any illegal | |
454 | * characters. | |
455 | */ | |
1b6bf175 | 456 | static int check_name(e2fsck_t ctx, |
3839e657 | 457 | struct ext2_dir_entry *dirent, |
efc6f628 | 458 | ext2_ino_t dir_ino EXT2FS_ATTR((unused)), |
54434927 | 459 | struct problem_context *pctx) |
3839e657 TT |
460 | { |
461 | int i; | |
462 | int fixup = -1; | |
3839e657 | 463 | int ret = 0; |
efc6f628 | 464 | |
b6f79831 | 465 | for ( i = 0; i < (dirent->name_len & 0xFF); i++) { |
3839e657 TT |
466 | if (dirent->name[i] == '/' || dirent->name[i] == '\0') { |
467 | if (fixup < 0) { | |
1b6bf175 | 468 | fixup = fix_problem(ctx, PR_2_BAD_NAME, pctx); |
3839e657 TT |
469 | } |
470 | if (fixup) { | |
471 | dirent->name[i] = '.'; | |
472 | ret = 1; | |
21c84b71 | 473 | } |
3839e657 TT |
474 | } |
475 | } | |
476 | return ret; | |
477 | } | |
478 | ||
aa4115a4 TT |
479 | /* |
480 | * Check the directory filetype (if present) | |
481 | */ | |
482 | static _INLINE_ int check_filetype(e2fsck_t ctx, | |
54434927 TT |
483 | struct ext2_dir_entry *dirent, |
484 | ext2_ino_t dir_ino EXT2FS_ATTR((unused)), | |
485 | struct problem_context *pctx) | |
aa4115a4 TT |
486 | { |
487 | int filetype = dirent->name_len >> 8; | |
488 | int should_be = EXT2_FT_UNKNOWN; | |
489 | struct ext2_inode inode; | |
490 | ||
491 | if (!(ctx->fs->super->s_feature_incompat & | |
7847c1d4 TT |
492 | EXT2_FEATURE_INCOMPAT_FILETYPE)) { |
493 | if (filetype == 0 || | |
494 | !fix_problem(ctx, PR_2_CLEAR_FILETYPE, pctx)) | |
495 | return 0; | |
496 | dirent->name_len = dirent->name_len & 0xFF; | |
497 | return 1; | |
498 | } | |
aa4115a4 TT |
499 | |
500 | if (ext2fs_test_inode_bitmap(ctx->inode_dir_map, dirent->inode)) { | |
501 | should_be = EXT2_FT_DIR; | |
502 | } else if (ext2fs_test_inode_bitmap(ctx->inode_reg_map, | |
503 | dirent->inode)) { | |
504 | should_be = EXT2_FT_REG_FILE; | |
505 | } else if (ctx->inode_bad_map && | |
506 | ext2fs_test_inode_bitmap(ctx->inode_bad_map, | |
507 | dirent->inode)) | |
508 | should_be = 0; | |
509 | else { | |
510 | e2fsck_read_inode(ctx, dirent->inode, &inode, | |
511 | "check_filetype"); | |
6fdc7a32 | 512 | should_be = ext2_file_type(inode.i_mode); |
aa4115a4 TT |
513 | } |
514 | if (filetype == should_be) | |
515 | return 0; | |
516 | pctx->num = should_be; | |
517 | ||
518 | if (fix_problem(ctx, filetype ? PR_2_BAD_FILETYPE : PR_2_SET_FILETYPE, | |
519 | pctx) == 0) | |
520 | return 0; | |
efc6f628 | 521 | |
aa4115a4 TT |
522 | dirent->name_len = (dirent->name_len & 0xFF) | should_be << 8; |
523 | return 1; | |
524 | } | |
525 | ||
8fdc9985 TT |
526 | #ifdef ENABLE_HTREE |
527 | static void parse_int_node(ext2_filsys fs, | |
528 | struct ext2_db_entry *db, | |
529 | struct check_dir_struct *cd, | |
530 | struct dx_dir_info *dx_dir, | |
531 | char *block_buf) | |
532 | { | |
533 | struct ext2_dx_root_info *root; | |
534 | struct ext2_dx_entry *ent; | |
535 | struct ext2_dx_countlimit *limit; | |
536 | struct dx_dirblock_info *dx_db; | |
ad4fa466 | 537 | int i, expect_limit, count; |
8fdc9985 TT |
538 | blk_t blk; |
539 | ext2_dirhash_t min_hash = 0xffffffff; | |
540 | ext2_dirhash_t max_hash = 0; | |
ad4fa466 | 541 | ext2_dirhash_t hash = 0, prev_hash; |
8fdc9985 TT |
542 | |
543 | if (db->blockcnt == 0) { | |
544 | root = (struct ext2_dx_root_info *) (block_buf + 24); | |
efc6f628 | 545 | |
8fdc9985 TT |
546 | #ifdef DX_DEBUG |
547 | printf("Root node dump:\n"); | |
8deb80a5 | 548 | printf("\t Reserved zero: %u\n", root->reserved_zero); |
8fdc9985 TT |
549 | printf("\t Hash Version: %d\n", root->hash_version); |
550 | printf("\t Info length: %d\n", root->info_length); | |
551 | printf("\t Indirect levels: %d\n", root->indirect_levels); | |
552 | printf("\t Flags: %d\n", root->unused_flags); | |
553 | #endif | |
554 | ||
555 | ent = (struct ext2_dx_entry *) (block_buf + 24 + root->info_length); | |
556 | } else { | |
557 | ent = (struct ext2_dx_entry *) (block_buf+8); | |
558 | } | |
559 | limit = (struct ext2_dx_countlimit *) ent; | |
560 | ||
561 | #ifdef DX_DEBUG | |
efc6f628 | 562 | printf("Number of entries (count): %d\n", |
8132d840 | 563 | ext2fs_le16_to_cpu(limit->count)); |
efc6f628 | 564 | printf("Number of entries (limit): %d\n", |
8132d840 | 565 | ext2fs_le16_to_cpu(limit->limit)); |
8fdc9985 TT |
566 | #endif |
567 | ||
8132d840 | 568 | count = ext2fs_le16_to_cpu(limit->count); |
ad4fa466 TT |
569 | expect_limit = (fs->blocksize - ((char *) ent - block_buf)) / |
570 | sizeof(struct ext2_dx_entry); | |
8132d840 TT |
571 | if (ext2fs_le16_to_cpu(limit->limit) != expect_limit) { |
572 | cd->pctx.num = ext2fs_le16_to_cpu(limit->limit); | |
ad4fa466 TT |
573 | if (fix_problem(cd->ctx, PR_2_HTREE_BAD_LIMIT, &cd->pctx)) |
574 | goto clear_and_exit; | |
575 | } | |
8132d840 TT |
576 | if (count > expect_limit) { |
577 | cd->pctx.num = count; | |
ad4fa466 TT |
578 | if (fix_problem(cd->ctx, PR_2_HTREE_BAD_COUNT, &cd->pctx)) |
579 | goto clear_and_exit; | |
580 | count = expect_limit; | |
581 | } | |
efc6f628 | 582 | |
ad4fa466 TT |
583 | for (i=0; i < count; i++) { |
584 | prev_hash = hash; | |
8132d840 | 585 | hash = i ? (ext2fs_le32_to_cpu(ent[i].hash) & ~1) : 0; |
8fdc9985 | 586 | #ifdef DX_DEBUG |
8deb80a5 | 587 | printf("Entry #%d: Hash 0x%08x, block %u\n", i, |
8132d840 | 588 | hash, ext2fs_le32_to_cpu(ent[i].block)); |
8fdc9985 | 589 | #endif |
8132d840 | 590 | blk = ext2fs_le32_to_cpu(ent[i].block) & 0x0ffffff; |
8fdc9985 | 591 | /* Check to make sure the block is valid */ |
977ac873 | 592 | if (blk >= (blk_t) dx_dir->numblocks) { |
b7a00563 | 593 | cd->pctx.blk = blk; |
8fdc9985 | 594 | if (fix_problem(cd->ctx, PR_2_HTREE_BADBLK, |
ad4fa466 TT |
595 | &cd->pctx)) |
596 | goto clear_and_exit; | |
977ac873 | 597 | continue; |
8fdc9985 | 598 | } |
ad4fa466 TT |
599 | if (hash < prev_hash && |
600 | fix_problem(cd->ctx, PR_2_HTREE_HASH_ORDER, &cd->pctx)) | |
601 | goto clear_and_exit; | |
8fdc9985 TT |
602 | dx_db = &dx_dir->dx_block[blk]; |
603 | if (dx_db->flags & DX_FLAG_REFERENCED) { | |
604 | dx_db->flags |= DX_FLAG_DUP_REF; | |
605 | } else { | |
606 | dx_db->flags |= DX_FLAG_REFERENCED; | |
607 | dx_db->parent = db->blockcnt; | |
608 | } | |
609 | if (hash < min_hash) | |
610 | min_hash = hash; | |
611 | if (hash > max_hash) | |
612 | max_hash = hash; | |
613 | dx_db->node_min_hash = hash; | |
8132d840 | 614 | if ((i+1) < count) |
efc6f628 | 615 | dx_db->node_max_hash = |
8132d840 | 616 | ext2fs_le32_to_cpu(ent[i+1].hash) & ~1; |
8fdc9985 TT |
617 | else { |
618 | dx_db->node_max_hash = 0xfffffffe; | |
619 | dx_db->flags |= DX_FLAG_LAST; | |
620 | } | |
621 | if (i == 0) | |
622 | dx_db->flags |= DX_FLAG_FIRST; | |
623 | } | |
624 | #ifdef DX_DEBUG | |
625 | printf("Blockcnt = %d, min hash 0x%08x, max hash 0x%08x\n", | |
626 | db->blockcnt, min_hash, max_hash); | |
627 | #endif | |
628 | dx_db = &dx_dir->dx_block[db->blockcnt]; | |
629 | dx_db->min_hash = min_hash; | |
630 | dx_db->max_hash = max_hash; | |
ad4fa466 TT |
631 | return; |
632 | ||
633 | clear_and_exit: | |
634 | clear_htree(cd->ctx, cd->pctx.ino); | |
635 | dx_dir->numblocks = 0; | |
8fdc9985 TT |
636 | } |
637 | #endif /* ENABLE_HTREE */ | |
aa4115a4 | 638 | |
e70ae99e TT |
639 | /* |
640 | * Given a busted directory, try to salvage it somehow. | |
efc6f628 | 641 | * |
e70ae99e | 642 | */ |
ad4fa466 | 643 | static void salvage_directory(ext2_filsys fs, |
e70ae99e TT |
644 | struct ext2_dir_entry *dirent, |
645 | struct ext2_dir_entry *prev, | |
54434927 | 646 | unsigned int *offset) |
e70ae99e TT |
647 | { |
648 | char *cp = (char *) dirent; | |
5dd77dbe | 649 | int left, rec_len; |
642935c0 | 650 | unsigned int name_len = dirent->name_len & 0xFF; |
e70ae99e | 651 | |
5dd77dbe TT |
652 | rec_len = (dirent->rec_len || fs->blocksize < 65536) ? |
653 | dirent->rec_len : 65536; | |
654 | left = fs->blocksize - *offset - rec_len; | |
655 | ||
e70ae99e TT |
656 | /* |
657 | * Special case of directory entry of size 8: copy what's left | |
658 | * of the directory block up to cover up the invalid hole. | |
659 | */ | |
5dd77dbe | 660 | if ((left >= 12) && (rec_len == 8)) { |
e70ae99e TT |
661 | memmove(cp, cp+8, left); |
662 | memset(cp + left, 0, 8); | |
ad4fa466 TT |
663 | return; |
664 | } | |
665 | /* | |
666 | * If the directory entry overruns the end of the directory | |
667 | * block, and the name is small enough to fit, then adjust the | |
668 | * record length. | |
669 | */ | |
670 | if ((left < 0) && | |
5dd77dbe | 671 | (name_len + 8 <= rec_len + (unsigned) left) && |
ad4fa466 TT |
672 | dirent->inode <= fs->super->s_inodes_count && |
673 | strnlen(dirent->name, name_len) == name_len) { | |
674 | dirent->rec_len += left; | |
675 | return; | |
e70ae99e TT |
676 | } |
677 | /* | |
575307cc KS |
678 | * If the record length of the directory entry is a multiple |
679 | * of four, and not too big, such that it is valid, let the | |
680 | * previous directory entry absorb the invalid one. | |
e70ae99e | 681 | */ |
5dd77dbe TT |
682 | if (prev && rec_len && (rec_len % 4) == 0 && |
683 | (*offset + rec_len <= fs->blocksize)) { | |
684 | prev->rec_len += rec_len; | |
685 | *offset += rec_len; | |
ad4fa466 | 686 | return; |
e70ae99e TT |
687 | } |
688 | /* | |
689 | * Default salvage method --- kill all of the directory | |
690 | * entries for the rest of the block. We will either try to | |
691 | * absorb it into the previous directory entry, or create a | |
692 | * new empty directory entry the rest of the directory block. | |
693 | */ | |
694 | if (prev) { | |
ad4fa466 TT |
695 | prev->rec_len += fs->blocksize - *offset; |
696 | *offset = fs->blocksize; | |
e70ae99e | 697 | } else { |
ad4fa466 | 698 | dirent->rec_len = fs->blocksize - *offset; |
e70ae99e TT |
699 | dirent->name_len = 0; |
700 | dirent->inode = 0; | |
e70ae99e | 701 | } |
e70ae99e TT |
702 | } |
703 | ||
3839e657 | 704 | static int check_dir_block(ext2_filsys fs, |
21c84b71 | 705 | struct ext2_db_entry *db, |
54dc7ca2 | 706 | void *priv_data) |
3839e657 | 707 | { |
8fdc9985 TT |
708 | struct dx_dir_info *dx_dir; |
709 | #ifdef ENABLE_HTREE | |
710 | struct dx_dirblock_info *dx_db = 0; | |
711 | #endif /* ENABLE_HTREE */ | |
e70ae99e | 712 | struct ext2_dir_entry *dirent, *prev; |
8fdc9985 | 713 | ext2_dirhash_t hash; |
54434927 | 714 | unsigned int offset = 0; |
e94bc631 | 715 | const char * old_op; |
3839e657 | 716 | int dir_modified = 0; |
21c84b71 | 717 | int dot_state; |
03fa6f8a | 718 | unsigned int rec_len; |
3839e657 | 719 | blk_t block_nr = db->blk; |
86c627ec | 720 | ext2_ino_t ino = db->ino; |
28db82a8 | 721 | ext2_ino_t subdir_parent; |
21c84b71 | 722 | __u16 links; |
54dc7ca2 | 723 | struct check_dir_struct *cd; |
1b6bf175 TT |
724 | char *buf; |
725 | e2fsck_t ctx; | |
726 | int problem; | |
ea1959f0 | 727 | struct ext2_dx_root_info *root; |
e8254bfd | 728 | struct ext2_dx_countlimit *limit; |
0926668d TT |
729 | static dict_t de_dict; |
730 | struct problem_context pctx; | |
731 | int dups_found = 0; | |
28db82a8 | 732 | int ret; |
1b6bf175 | 733 | |
54dc7ca2 | 734 | cd = (struct check_dir_struct *) priv_data; |
1b6bf175 TT |
735 | buf = cd->buf; |
736 | ctx = cd->ctx; | |
f8188fff | 737 | |
49a7360b | 738 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK || ctx->flags & E2F_FLAG_RESTART) |
4cae0452 | 739 | return DIRENT_ABORT; |
efc6f628 | 740 | |
4cae0452 TT |
741 | if (ctx->progress && (ctx->progress)(ctx, 2, cd->count++, cd->max)) |
742 | return DIRENT_ABORT; | |
efc6f628 | 743 | |
3839e657 | 744 | /* |
efc6f628 | 745 | * Make sure the inode is still in use (could have been |
3839e657 TT |
746 | * deleted in the duplicate/bad blocks pass. |
747 | */ | |
efc6f628 | 748 | if (!(ext2fs_test_inode_bitmap(ctx->inode_used_map, ino))) |
3839e657 | 749 | return 0; |
50e1e10f | 750 | |
21c84b71 TT |
751 | cd->pctx.ino = ino; |
752 | cd->pctx.blk = block_nr; | |
753 | cd->pctx.blkcount = db->blockcnt; | |
754 | cd->pctx.ino2 = 0; | |
755 | cd->pctx.dirent = 0; | |
756 | cd->pctx.num = 0; | |
757 | ||
50e1e10f | 758 | if (db->blk == 0) { |
1b6bf175 | 759 | if (allocate_dir_block(ctx, db, buf, &cd->pctx)) |
50e1e10f TT |
760 | return 0; |
761 | block_nr = db->blk; | |
762 | } | |
efc6f628 | 763 | |
3839e657 TT |
764 | if (db->blockcnt) |
765 | dot_state = 2; | |
766 | else | |
767 | dot_state = 0; | |
768 | ||
0926668d TT |
769 | if (ctx->dirs_to_hash && |
770 | ext2fs_u32_list_test(ctx->dirs_to_hash, ino)) | |
771 | dups_found++; | |
772 | ||
3839e657 | 773 | #if 0 |
f3db3566 | 774 | printf("In process_dir_block block %lu, #%d, inode %lu\n", block_nr, |
3839e657 TT |
775 | db->blockcnt, ino); |
776 | #endif | |
efc6f628 | 777 | |
e94bc631 | 778 | old_op = ehandler_operation(_("reading directory block")); |
1b6bf175 | 779 | cd->pctx.errcode = ext2fs_read_dir_block(fs, block_nr, buf); |
e94bc631 | 780 | ehandler_operation(0); |
b9852cd8 TT |
781 | if (cd->pctx.errcode == EXT2_ET_DIR_CORRUPTED) |
782 | cd->pctx.errcode = 0; /* We'll handle this ourselves */ | |
1b6bf175 | 783 | if (cd->pctx.errcode) { |
08b21301 TT |
784 | if (!fix_problem(ctx, PR_2_READ_DIRBLOCK, &cd->pctx)) { |
785 | ctx->flags |= E2F_FLAG_ABORT; | |
786 | return DIRENT_ABORT; | |
787 | } | |
1b6bf175 | 788 | memset(buf, 0, fs->blocksize); |
3839e657 | 789 | } |
8fdc9985 TT |
790 | #ifdef ENABLE_HTREE |
791 | dx_dir = e2fsck_get_dx_dir_info(ctx, ino); | |
62acaa1d | 792 | if (dx_dir && dx_dir->numblocks) { |
8fdc9985 | 793 | if (db->blockcnt >= dx_dir->numblocks) { |
efc6f628 | 794 | if (fix_problem(ctx, PR_2_UNEXPECTED_HTREE_BLOCK, |
d45edec0 TT |
795 | &pctx)) { |
796 | clear_htree(ctx, ino); | |
797 | dx_dir->numblocks = 0; | |
798 | dx_db = 0; | |
799 | goto out_htree; | |
800 | } | |
801 | fatal_error(ctx, _("Can not continue.")); | |
8fdc9985 TT |
802 | } |
803 | dx_db = &dx_dir->dx_block[db->blockcnt]; | |
804 | dx_db->type = DX_DIRBLOCK_LEAF; | |
805 | dx_db->phys = block_nr; | |
806 | dx_db->min_hash = ~0; | |
807 | dx_db->max_hash = 0; | |
efc6f628 | 808 | |
8fdc9985 | 809 | dirent = (struct ext2_dir_entry *) buf; |
5dd77dbe TT |
810 | rec_len = (dirent->rec_len || fs->blocksize < 65536) ? |
811 | dirent->rec_len : 65536; | |
e8254bfd | 812 | limit = (struct ext2_dx_countlimit *) (buf+8); |
8fdc9985 | 813 | if (db->blockcnt == 0) { |
ea1959f0 | 814 | root = (struct ext2_dx_root_info *) (buf + 24); |
8fdc9985 TT |
815 | dx_db->type = DX_DIRBLOCK_ROOT; |
816 | dx_db->flags |= DX_FLAG_FIRST | DX_FLAG_LAST; | |
ea1959f0 TT |
817 | if ((root->reserved_zero || |
818 | root->info_length < 8 || | |
819 | root->indirect_levels > 1) && | |
820 | fix_problem(ctx, PR_2_HTREE_BAD_ROOT, &cd->pctx)) { | |
821 | clear_htree(ctx, ino); | |
822 | dx_dir->numblocks = 0; | |
823 | dx_db = 0; | |
f77704e4 | 824 | } |
ea1959f0 | 825 | dx_dir->hashversion = root->hash_version; |
f77704e4 TT |
826 | if ((dx_dir->hashversion <= EXT2_HASH_TEA) && |
827 | (fs->super->s_flags & EXT2_FLAGS_UNSIGNED_HASH)) | |
828 | dx_dir->hashversion += 3; | |
ad4fa466 | 829 | dx_dir->depth = root->indirect_levels + 1; |
8fdc9985 | 830 | } else if ((dirent->inode == 0) && |
5dd77dbe | 831 | (rec_len == fs->blocksize) && |
e8254bfd | 832 | (dirent->name_len == 0) && |
efc6f628 TT |
833 | (ext2fs_le16_to_cpu(limit->limit) == |
834 | ((fs->blocksize-8) / | |
8132d840 | 835 | sizeof(struct ext2_dx_entry)))) |
8fdc9985 TT |
836 | dx_db->type = DX_DIRBLOCK_NODE; |
837 | } | |
d45edec0 | 838 | out_htree: |
8fdc9985 | 839 | #endif /* ENABLE_HTREE */ |
3839e657 | 840 | |
0926668d | 841 | dict_init(&de_dict, DICTCOUNT_T_MAX, dict_de_cmp); |
e70ae99e | 842 | prev = 0; |
3839e657 | 843 | do { |
49a7360b JS |
844 | int group; |
845 | ext2_ino_t first_unused_inode; | |
846 | ||
1b6bf175 | 847 | problem = 0; |
3839e657 | 848 | dirent = (struct ext2_dir_entry *) (buf + offset); |
5dd77dbe TT |
849 | rec_len = (dirent->rec_len || fs->blocksize < 65536) ? |
850 | dirent->rec_len : 65536; | |
21c84b71 TT |
851 | cd->pctx.dirent = dirent; |
852 | cd->pctx.num = offset; | |
5dd77dbe TT |
853 | if (((offset + rec_len) > fs->blocksize) || |
854 | (rec_len < 12) || | |
855 | ((rec_len % 4) != 0) || | |
03fa6f8a | 856 | (((dirent->name_len & (unsigned) 0xFF)+8) > rec_len)) { |
1b6bf175 | 857 | if (fix_problem(ctx, PR_2_DIR_CORRUPTED, &cd->pctx)) { |
ad4fa466 | 858 | salvage_directory(fs, dirent, prev, &offset); |
3839e657 | 859 | dir_modified++; |
e70ae99e | 860 | continue; |
21c84b71 | 861 | } else |
0926668d | 862 | goto abort_free_dict; |
3839e657 | 863 | } |
b6f79831 | 864 | if ((dirent->name_len & 0xFF) > EXT2_NAME_LEN) { |
1b6bf175 | 865 | if (fix_problem(ctx, PR_2_FILENAME_LONG, &cd->pctx)) { |
50e1e10f TT |
866 | dirent->name_len = EXT2_NAME_LEN; |
867 | dir_modified++; | |
868 | } | |
50e1e10f TT |
869 | } |
870 | ||
e70ae99e | 871 | if (dot_state == 0) { |
1b6bf175 | 872 | if (check_dot(ctx, dirent, ino, &cd->pctx)) |
3839e657 | 873 | dir_modified++; |
e70ae99e | 874 | } else if (dot_state == 1) { |
28db82a8 TT |
875 | ret = check_dotdot(ctx, dirent, ino, &cd->pctx); |
876 | if (ret < 0) | |
0926668d | 877 | goto abort_free_dict; |
28db82a8 | 878 | if (ret) |
3839e657 TT |
879 | dir_modified++; |
880 | } else if (dirent->inode == ino) { | |
1b6bf175 TT |
881 | problem = PR_2_LINK_DOT; |
882 | if (fix_problem(ctx, PR_2_LINK_DOT, &cd->pctx)) { | |
3839e657 TT |
883 | dirent->inode = 0; |
884 | dir_modified++; | |
21c84b71 | 885 | goto next; |
3839e657 TT |
886 | } |
887 | } | |
efc6f628 | 888 | if (!dirent->inode) |
3839e657 | 889 | goto next; |
efc6f628 | 890 | |
3839e657 TT |
891 | /* |
892 | * Make sure the inode listed is a legal one. | |
efc6f628 | 893 | */ |
3839e657 | 894 | if (((dirent->inode != EXT2_ROOT_INO) && |
7f88b043 | 895 | (dirent->inode < EXT2_FIRST_INODE(fs->super))) || |
3839e657 | 896 | (dirent->inode > fs->super->s_inodes_count)) { |
1b6bf175 | 897 | problem = PR_2_BAD_INO; |
1b6bf175 TT |
898 | } else if (ctx->inode_bb_map && |
899 | (ext2fs_test_inode_bitmap(ctx->inode_bb_map, | |
900 | dirent->inode))) { | |
901 | /* | |
902 | * If the inode is in a bad block, offer to | |
903 | * clear it. | |
904 | */ | |
905 | problem = PR_2_BB_INODE; | |
e70ae99e | 906 | } else if ((dot_state > 1) && |
b6f79831 | 907 | ((dirent->name_len & 0xFF) == 1) && |
1b6bf175 TT |
908 | (dirent->name[0] == '.')) { |
909 | /* | |
910 | * If there's a '.' entry in anything other | |
911 | * than the first directory entry, it's a | |
912 | * duplicate entry that should be removed. | |
913 | */ | |
914 | problem = PR_2_DUP_DOT; | |
e70ae99e | 915 | } else if ((dot_state > 1) && |
b6f79831 | 916 | ((dirent->name_len & 0xFF) == 2) && |
efc6f628 | 917 | (dirent->name[0] == '.') && |
1b6bf175 TT |
918 | (dirent->name[1] == '.')) { |
919 | /* | |
920 | * If there's a '..' entry in anything other | |
921 | * than the second directory entry, it's a | |
922 | * duplicate entry that should be removed. | |
923 | */ | |
924 | problem = PR_2_DUP_DOT_DOT; | |
e70ae99e | 925 | } else if ((dot_state > 1) && |
1b6bf175 TT |
926 | (dirent->inode == EXT2_ROOT_INO)) { |
927 | /* | |
928 | * Don't allow links to the root directory. | |
929 | * We check this specially to make sure we | |
930 | * catch this error case even if the root | |
931 | * directory hasn't been created yet. | |
932 | */ | |
933 | problem = PR_2_LINK_ROOT; | |
e70ae99e | 934 | } else if ((dot_state > 1) && |
c40db6d5 TT |
935 | (dirent->name_len & 0xFF) == 0) { |
936 | /* | |
937 | * Don't allow zero-length directory names. | |
938 | */ | |
939 | problem = PR_2_NULL_NAME; | |
21c84b71 TT |
940 | } |
941 | ||
1b6bf175 TT |
942 | if (problem) { |
943 | if (fix_problem(ctx, problem, &cd->pctx)) { | |
21c84b71 TT |
944 | dirent->inode = 0; |
945 | dir_modified++; | |
946 | goto next; | |
1b6bf175 TT |
947 | } else { |
948 | ext2fs_unmark_valid(fs); | |
949 | if (problem == PR_2_BAD_INO) | |
950 | goto next; | |
21c84b71 | 951 | } |
3839e657 TT |
952 | } |
953 | ||
954 | /* | |
955 | * If the inode was marked as having bad fields in | |
956 | * pass1, process it and offer to fix/clear it. | |
957 | * (We wait until now so that we can display the | |
958 | * pathname to the user.) | |
959 | */ | |
1b6bf175 TT |
960 | if (ctx->inode_bad_map && |
961 | ext2fs_test_inode_bitmap(ctx->inode_bad_map, | |
3839e657 | 962 | dirent->inode)) { |
e72a9ba3 | 963 | if (e2fsck_process_bad_inode(ctx, ino, |
bcf9c5d4 TT |
964 | dirent->inode, |
965 | buf + fs->blocksize)) { | |
3839e657 TT |
966 | dirent->inode = 0; |
967 | dir_modified++; | |
968 | goto next; | |
969 | } | |
a02ce9df | 970 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK) |
08b21301 | 971 | return DIRENT_ABORT; |
3839e657 TT |
972 | } |
973 | ||
49a7360b JS |
974 | group = ext2fs_group_of_ino(fs, dirent->inode); |
975 | first_unused_inode = group * fs->super->s_inodes_per_group + | |
976 | 1 + fs->super->s_inodes_per_group - | |
977 | fs->group_desc[group].bg_itable_unused; | |
978 | cd->pctx.group = group; | |
979 | ||
980 | /* | |
42e89ce7 TT |
981 | * Check if the inode was missed out because |
982 | * _INODE_UNINIT flag was set or bg_itable_unused was | |
983 | * incorrect. If so, clear the _INODE_UNINIT flag and | |
984 | * restart e2fsck. In the future it would be nice if | |
985 | * we could call a function in pass1.c that checks the | |
986 | * newly visible inodes. | |
49a7360b JS |
987 | */ |
988 | if (fs->group_desc[group].bg_flags & EXT2_BG_INODE_UNINIT) { | |
6267ee49 | 989 | pctx.num = dirent->inode; |
49a7360b JS |
990 | if (fix_problem(ctx, PR_2_INOREF_BG_INO_UNINIT, |
991 | &cd->pctx)){ | |
992 | fs->group_desc[group].bg_flags &= | |
993 | ~EXT2_BG_INODE_UNINIT; | |
42e89ce7 | 994 | ext2fs_mark_super_dirty(fs); |
6267ee49 | 995 | ctx->flags |= E2F_FLAG_RESTART_LATER; |
49a7360b JS |
996 | } else { |
997 | ext2fs_unmark_valid(fs); | |
998 | if (problem == PR_2_BAD_INO) | |
999 | goto next; | |
1000 | } | |
1001 | } else if (dirent->inode >= first_unused_inode) { | |
6267ee49 | 1002 | pctx.num = dirent->inode; |
49a7360b JS |
1003 | if (fix_problem(ctx, PR_2_INOREF_IN_UNUSED, &cd->pctx)){ |
1004 | fs->group_desc[group].bg_itable_unused = 0; | |
49a7360b | 1005 | ext2fs_mark_super_dirty(fs); |
6267ee49 | 1006 | ctx->flags |= E2F_FLAG_RESTART_LATER; |
49a7360b JS |
1007 | } else { |
1008 | ext2fs_unmark_valid(fs); | |
1009 | if (problem == PR_2_BAD_INO) | |
1010 | goto next; | |
1011 | } | |
1012 | } | |
1013 | ||
1014 | if (!(ext2fs_test_inode_bitmap(ctx->inode_used_map, | |
1015 | dirent->inode))) { | |
1016 | /* | |
1017 | * If the inode is unused, offer to clear it. | |
1018 | */ | |
1019 | problem = PR_2_UNUSED_INODE; | |
1020 | } | |
1021 | ||
1022 | if (problem) { | |
1023 | if (fix_problem(ctx, problem, &cd->pctx)) { | |
1024 | dirent->inode = 0; | |
1025 | dir_modified++; | |
1026 | goto next; | |
1027 | } else { | |
1028 | ext2fs_unmark_valid(fs); | |
1029 | if (problem == PR_2_BAD_INO) | |
1030 | goto next; | |
1031 | } | |
1032 | } | |
1033 | ||
1b6bf175 TT |
1034 | if (check_name(ctx, dirent, ino, &cd->pctx)) |
1035 | dir_modified++; | |
1036 | ||
aa4115a4 TT |
1037 | if (check_filetype(ctx, dirent, ino, &cd->pctx)) |
1038 | dir_modified++; | |
1039 | ||
8fdc9985 TT |
1040 | #ifdef ENABLE_HTREE |
1041 | if (dx_db) { | |
1042 | ext2fs_dirhash(dx_dir->hashversion, dirent->name, | |
503f9e7f TT |
1043 | (dirent->name_len & 0xFF), |
1044 | fs->super->s_hash_seed, &hash, 0); | |
8fdc9985 TT |
1045 | if (hash < dx_db->min_hash) |
1046 | dx_db->min_hash = hash; | |
1047 | if (hash > dx_db->max_hash) | |
1048 | dx_db->max_hash = hash; | |
1049 | } | |
1050 | #endif | |
1051 | ||
3839e657 TT |
1052 | /* |
1053 | * If this is a directory, then mark its parent in its | |
1054 | * dir_info structure. If the parent field is already | |
1055 | * filled in, then this directory has more than one | |
1056 | * hard link. We assume the first link is correct, | |
1057 | * and ask the user if he/she wants to clear this one. | |
1058 | */ | |
e70ae99e | 1059 | if ((dot_state > 1) && |
1b6bf175 | 1060 | (ext2fs_test_inode_bitmap(ctx->inode_dir_map, |
3839e657 | 1061 | dirent->inode))) { |
28db82a8 TT |
1062 | if (e2fsck_dir_info_get_parent(ctx, dirent->inode, |
1063 | &subdir_parent)) { | |
1b6bf175 TT |
1064 | cd->pctx.ino = dirent->inode; |
1065 | fix_problem(ctx, PR_2_NO_DIRINFO, &cd->pctx); | |
0926668d | 1066 | goto abort_free_dict; |
3839e657 | 1067 | } |
28db82a8 TT |
1068 | if (subdir_parent) { |
1069 | cd->pctx.ino2 = subdir_parent; | |
1b6bf175 | 1070 | if (fix_problem(ctx, PR_2_LINK_DIR, |
21c84b71 | 1071 | &cd->pctx)) { |
3839e657 TT |
1072 | dirent->inode = 0; |
1073 | dir_modified++; | |
1074 | goto next; | |
21c84b71 TT |
1075 | } |
1076 | cd->pctx.ino2 = 0; | |
28db82a8 | 1077 | } else { |
efc6f628 | 1078 | (void) e2fsck_dir_info_set_parent(ctx, |
28db82a8 TT |
1079 | dirent->inode, ino); |
1080 | } | |
3839e657 | 1081 | } |
0926668d TT |
1082 | |
1083 | if (dups_found) { | |
1084 | ; | |
1085 | } else if (dict_lookup(&de_dict, dirent)) { | |
1086 | clear_problem_context(&pctx); | |
1087 | pctx.ino = ino; | |
1088 | pctx.dirent = dirent; | |
1089 | fix_problem(ctx, PR_2_REPORT_DUP_DIRENT, &pctx); | |
1090 | if (!ctx->dirs_to_hash) | |
1091 | ext2fs_u32_list_create(&ctx->dirs_to_hash, 50); | |
1092 | if (ctx->dirs_to_hash) | |
1093 | ext2fs_u32_list_add(ctx->dirs_to_hash, ino); | |
1094 | dups_found++; | |
1095 | } else | |
1096 | dict_alloc_insert(&de_dict, dirent, dirent); | |
efc6f628 | 1097 | |
1b6bf175 TT |
1098 | ext2fs_icount_increment(ctx->inode_count, dirent->inode, |
1099 | &links); | |
21c84b71 | 1100 | if (links > 1) |
1b6bf175 TT |
1101 | ctx->fs_links_count++; |
1102 | ctx->fs_total_count++; | |
3839e657 | 1103 | next: |
e70ae99e | 1104 | prev = dirent; |
5dd77dbe TT |
1105 | if (dir_modified) |
1106 | rec_len = (dirent->rec_len || fs->blocksize < 65536) ? | |
1107 | dirent->rec_len : 65536; | |
1108 | offset += rec_len; | |
e70ae99e | 1109 | dot_state++; |
3839e657 TT |
1110 | } while (offset < fs->blocksize); |
1111 | #if 0 | |
1112 | printf("\n"); | |
1113 | #endif | |
8fdc9985 TT |
1114 | #ifdef ENABLE_HTREE |
1115 | if (dx_db) { | |
1116 | #ifdef DX_DEBUG | |
1117 | printf("db_block %d, type %d, min_hash 0x%0x, max_hash 0x%0x\n", | |
1118 | db->blockcnt, dx_db->type, | |
1119 | dx_db->min_hash, dx_db->max_hash); | |
1120 | #endif | |
b7a00563 | 1121 | cd->pctx.dir = cd->pctx.ino; |
8fdc9985 TT |
1122 | if ((dx_db->type == DX_DIRBLOCK_ROOT) || |
1123 | (dx_db->type == DX_DIRBLOCK_NODE)) | |
1124 | parse_int_node(fs, db, cd, dx_dir, buf); | |
1125 | } | |
1126 | #endif /* ENABLE_HTREE */ | |
3839e657 | 1127 | if (offset != fs->blocksize) { |
5dd77dbe | 1128 | cd->pctx.num = rec_len - fs->blocksize + offset; |
1b6bf175 TT |
1129 | if (fix_problem(ctx, PR_2_FINAL_RECLEN, &cd->pctx)) { |
1130 | dirent->rec_len = cd->pctx.num; | |
1131 | dir_modified++; | |
1132 | } | |
3839e657 TT |
1133 | } |
1134 | if (dir_modified) { | |
1b6bf175 TT |
1135 | cd->pctx.errcode = ext2fs_write_dir_block(fs, block_nr, buf); |
1136 | if (cd->pctx.errcode) { | |
08b21301 | 1137 | if (!fix_problem(ctx, PR_2_WRITE_DIRBLOCK, |
0926668d TT |
1138 | &cd->pctx)) |
1139 | goto abort_free_dict; | |
3839e657 TT |
1140 | } |
1141 | ext2fs_mark_changed(fs); | |
1142 | } | |
0926668d | 1143 | dict_free_nodes(&de_dict); |
3839e657 | 1144 | return 0; |
0926668d | 1145 | abort_free_dict: |
0926668d | 1146 | ctx->flags |= E2F_FLAG_ABORT; |
49a7360b | 1147 | dict_free_nodes(&de_dict); |
0926668d | 1148 | return DIRENT_ABORT; |
3839e657 TT |
1149 | } |
1150 | ||
1151 | /* | |
1152 | * This function is called to deallocate a block, and is an interator | |
1153 | * functioned called by deallocate inode via ext2fs_iterate_block(). | |
1154 | */ | |
1155 | static int deallocate_inode_block(ext2_filsys fs, | |
133a56dc | 1156 | blk_t *block_nr, |
54434927 TT |
1157 | e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), |
1158 | blk_t ref_block EXT2FS_ATTR((unused)), | |
1159 | int ref_offset EXT2FS_ATTR((unused)), | |
133a56dc | 1160 | void *priv_data) |
3839e657 | 1161 | { |
54dc7ca2 | 1162 | e2fsck_t ctx = (e2fsck_t) priv_data; |
efc6f628 | 1163 | |
1917875f | 1164 | if (HOLE_BLKADDR(*block_nr)) |
3839e657 | 1165 | return 0; |
1ba7a2f2 TT |
1166 | if ((*block_nr < fs->super->s_first_data_block) || |
1167 | (*block_nr >= fs->super->s_blocks_count)) | |
1168 | return 0; | |
1b6bf175 | 1169 | ext2fs_unmark_block_bitmap(ctx->block_found_map, *block_nr); |
0684a4f3 | 1170 | ext2fs_block_alloc_stats(fs, *block_nr, -1); |
3839e657 TT |
1171 | return 0; |
1172 | } | |
efc6f628 | 1173 | |
3839e657 TT |
1174 | /* |
1175 | * This fuction deallocates an inode | |
1176 | */ | |
4035f40b | 1177 | static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf) |
3839e657 | 1178 | { |
1b6bf175 | 1179 | ext2_filsys fs = ctx->fs; |
3839e657 | 1180 | struct ext2_inode inode; |
1b6bf175 | 1181 | struct problem_context pctx; |
0684a4f3 | 1182 | __u32 count; |
efc6f628 | 1183 | |
08b21301 | 1184 | e2fsck_read_inode(ctx, ino, &inode, "deallocate_inode"); |
e3df15ab | 1185 | e2fsck_clear_inode(ctx, ino, &inode, 0, "deallocate_inode"); |
1b6bf175 TT |
1186 | clear_problem_context(&pctx); |
1187 | pctx.ino = ino; | |
f3db3566 | 1188 | |
3839e657 TT |
1189 | /* |
1190 | * Fix up the bitmaps... | |
1191 | */ | |
f8188fff | 1192 | e2fsck_read_bitmaps(ctx); |
0684a4f3 TT |
1193 | ext2fs_inode_alloc_stats2(fs, ino, -1, LINUX_S_ISDIR(inode.i_mode)); |
1194 | ||
1195 | if (inode.i_file_acl && | |
1196 | (fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR)) { | |
1197 | pctx.errcode = ext2fs_adjust_ea_refcount(fs, inode.i_file_acl, | |
1198 | block_buf, -1, &count); | |
1199 | if (pctx.errcode == EXT2_ET_BAD_EA_BLOCK_NUM) { | |
1200 | pctx.errcode = 0; | |
1201 | count = 1; | |
1202 | } | |
1203 | if (pctx.errcode) { | |
1204 | pctx.blk = inode.i_file_acl; | |
1205 | fix_problem(ctx, PR_2_ADJ_EA_REFCOUNT, &pctx); | |
1206 | ctx->flags |= E2F_FLAG_ABORT; | |
1207 | return; | |
1208 | } | |
1209 | if (count == 0) { | |
1210 | ext2fs_unmark_block_bitmap(ctx->block_found_map, | |
1211 | inode.i_file_acl); | |
1212 | ext2fs_block_alloc_stats(fs, inode.i_file_acl, -1); | |
1213 | } | |
1214 | inode.i_file_acl = 0; | |
1215 | } | |
3839e657 | 1216 | |
21c84b71 | 1217 | if (!ext2fs_inode_has_valid_blocks(&inode)) |
3839e657 | 1218 | return; |
a4742691 | 1219 | |
b94a052a | 1220 | if (LINUX_S_ISREG(inode.i_mode) && |
a4742691 TT |
1221 | (inode.i_size_high || inode.i_size & 0x80000000UL)) |
1222 | ctx->large_files--; | |
1223 | ||
133a56dc | 1224 | pctx.errcode = ext2fs_block_iterate2(fs, ino, 0, block_buf, |
1b6bf175 TT |
1225 | deallocate_inode_block, ctx); |
1226 | if (pctx.errcode) { | |
1227 | fix_problem(ctx, PR_2_DEALLOC_INODE, &pctx); | |
08b21301 TT |
1228 | ctx->flags |= E2F_FLAG_ABORT; |
1229 | return; | |
1b6bf175 | 1230 | } |
3839e657 TT |
1231 | } |
1232 | ||
8fdc9985 TT |
1233 | /* |
1234 | * This fuction clears the htree flag on an inode | |
1235 | */ | |
1236 | static void clear_htree(e2fsck_t ctx, ext2_ino_t ino) | |
1237 | { | |
1238 | struct ext2_inode inode; | |
efc6f628 | 1239 | |
8fdc9985 TT |
1240 | e2fsck_read_inode(ctx, ino, &inode, "clear_htree"); |
1241 | inode.i_flags = inode.i_flags & ~EXT2_INDEX_FL; | |
1242 | e2fsck_write_inode(ctx, ino, &inode, "clear_htree"); | |
b7a00563 TT |
1243 | if (ctx->dirs_to_hash) |
1244 | ext2fs_u32_list_add(ctx->dirs_to_hash, ino); | |
8fdc9985 TT |
1245 | } |
1246 | ||
1247 | ||
86c627ec | 1248 | extern int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir, |
bcf9c5d4 | 1249 | ext2_ino_t ino, char *buf) |
3839e657 | 1250 | { |
1b6bf175 | 1251 | ext2_filsys fs = ctx->fs; |
3839e657 | 1252 | struct ext2_inode inode; |
3839e657 | 1253 | int inode_modified = 0; |
6c313fd4 | 1254 | int not_fixed = 0; |
1e3472c5 | 1255 | unsigned char *frag, *fsize; |
21c84b71 | 1256 | struct problem_context pctx; |
08b21301 | 1257 | int problem = 0; |
3839e657 | 1258 | |
08b21301 | 1259 | e2fsck_read_inode(ctx, ino, &inode, "process_bad_inode"); |
21c84b71 TT |
1260 | |
1261 | clear_problem_context(&pctx); | |
1262 | pctx.ino = ino; | |
1263 | pctx.dir = dir; | |
1264 | pctx.inode = &inode; | |
1265 | ||
6c313fd4 | 1266 | if (inode.i_file_acl && |
f76344fb TT |
1267 | !(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR)) { |
1268 | if (fix_problem(ctx, PR_2_FILE_ACL_ZERO, &pctx)) { | |
1269 | inode.i_file_acl = 0; | |
f76344fb TT |
1270 | inode_modified++; |
1271 | } else | |
1272 | not_fixed++; | |
1273 | } | |
6c313fd4 | 1274 | |
50e1e10f TT |
1275 | if (!LINUX_S_ISDIR(inode.i_mode) && !LINUX_S_ISREG(inode.i_mode) && |
1276 | !LINUX_S_ISCHR(inode.i_mode) && !LINUX_S_ISBLK(inode.i_mode) && | |
1277 | !LINUX_S_ISLNK(inode.i_mode) && !LINUX_S_ISFIFO(inode.i_mode) && | |
08b21301 TT |
1278 | !(LINUX_S_ISSOCK(inode.i_mode))) |
1279 | problem = PR_2_BAD_MODE; | |
fdbdea09 | 1280 | else if (LINUX_S_ISCHR(inode.i_mode) |
0684a4f3 | 1281 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
08b21301 | 1282 | problem = PR_2_BAD_CHAR_DEV; |
fdbdea09 | 1283 | else if (LINUX_S_ISBLK(inode.i_mode) |
0684a4f3 | 1284 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
08b21301 | 1285 | problem = PR_2_BAD_BLOCK_DEV; |
fdbdea09 | 1286 | else if (LINUX_S_ISFIFO(inode.i_mode) |
0684a4f3 | 1287 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
1dde43f0 | 1288 | problem = PR_2_BAD_FIFO; |
fdbdea09 | 1289 | else if (LINUX_S_ISSOCK(inode.i_mode) |
0684a4f3 | 1290 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
1dde43f0 | 1291 | problem = PR_2_BAD_SOCKET; |
fdbdea09 | 1292 | else if (LINUX_S_ISLNK(inode.i_mode) |
7cadc577 | 1293 | && !e2fsck_pass1_check_symlink(fs, ino, &inode, buf)) { |
bcf9c5d4 | 1294 | problem = PR_2_INVALID_SYMLINK; |
67052a8a | 1295 | } |
1dde43f0 | 1296 | |
08b21301 TT |
1297 | if (problem) { |
1298 | if (fix_problem(ctx, problem, &pctx)) { | |
1b6bf175 | 1299 | deallocate_inode(ctx, ino, 0); |
a02ce9df | 1300 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK) |
08b21301 | 1301 | return 0; |
7cf73dcd | 1302 | return 1; |
6c313fd4 TT |
1303 | } else |
1304 | not_fixed++; | |
08b21301 | 1305 | problem = 0; |
7cf73dcd | 1306 | } |
efc6f628 | 1307 | |
6c313fd4 TT |
1308 | if (inode.i_faddr) { |
1309 | if (fix_problem(ctx, PR_2_FADDR_ZERO, &pctx)) { | |
1310 | inode.i_faddr = 0; | |
1311 | inode_modified++; | |
1312 | } else | |
1313 | not_fixed++; | |
3839e657 | 1314 | } |
1e3472c5 TT |
1315 | |
1316 | switch (fs->super->s_creator_os) { | |
1e3472c5 TT |
1317 | case EXT2_OS_HURD: |
1318 | frag = &inode.osd2.hurd2.h_i_frag; | |
1319 | fsize = &inode.osd2.hurd2.h_i_fsize; | |
1320 | break; | |
1e3472c5 TT |
1321 | default: |
1322 | frag = fsize = 0; | |
1323 | } | |
21c84b71 TT |
1324 | if (frag && *frag) { |
1325 | pctx.num = *frag; | |
1b6bf175 | 1326 | if (fix_problem(ctx, PR_2_FRAG_ZERO, &pctx)) { |
21c84b71 TT |
1327 | *frag = 0; |
1328 | inode_modified++; | |
7e0282c5 TT |
1329 | } else |
1330 | not_fixed++; | |
21c84b71 TT |
1331 | pctx.num = 0; |
1332 | } | |
1333 | if (fsize && *fsize) { | |
1334 | pctx.num = *fsize; | |
1b6bf175 | 1335 | if (fix_problem(ctx, PR_2_FSIZE_ZERO, &pctx)) { |
21c84b71 TT |
1336 | *fsize = 0; |
1337 | inode_modified++; | |
6c313fd4 TT |
1338 | } else |
1339 | not_fixed++; | |
21c84b71 TT |
1340 | pctx.num = 0; |
1341 | } | |
1342 | ||
5d17119d | 1343 | if ((fs->super->s_creator_os == EXT2_OS_LINUX) && |
efc6f628 | 1344 | !(fs->super->s_feature_ro_compat & |
5d17119d TT |
1345 | EXT4_FEATURE_RO_COMPAT_HUGE_FILE) && |
1346 | (inode.osd2.linux2.l_i_blocks_hi != 0)) { | |
1347 | pctx.num = inode.osd2.linux2.l_i_blocks_hi; | |
1348 | if (fix_problem(ctx, PR_2_BLOCKS_HI_ZERO, &pctx)) { | |
1349 | inode.osd2.linux2.l_i_blocks_hi = 0; | |
1350 | inode_modified++; | |
1351 | } | |
1352 | } | |
1353 | ||
911ec626 TT |
1354 | if (!(fs->super->s_feature_incompat & |
1355 | EXT4_FEATURE_INCOMPAT_64BIT) && | |
1356 | inode.osd2.linux2.l_i_file_acl_high != 0) { | |
1357 | pctx.num = inode.osd2.linux2.l_i_file_acl_high; | |
1358 | if (fix_problem(ctx, PR_2_I_FILE_ACL_HI_ZERO, &pctx)) { | |
1359 | inode.osd2.linux2.l_i_file_acl_high = 0; | |
1360 | inode_modified++; | |
1361 | } else | |
1362 | not_fixed++; | |
1363 | } | |
1364 | ||
342d847d TT |
1365 | if (inode.i_file_acl && |
1366 | ((inode.i_file_acl < fs->super->s_first_data_block) || | |
6c313fd4 TT |
1367 | (inode.i_file_acl >= fs->super->s_blocks_count))) { |
1368 | if (fix_problem(ctx, PR_2_FILE_ACL_BAD, &pctx)) { | |
1369 | inode.i_file_acl = 0; | |
1370 | inode_modified++; | |
1371 | } else | |
1372 | not_fixed++; | |
342d847d | 1373 | } |
21c84b71 | 1374 | if (inode.i_dir_acl && |
6c313fd4 TT |
1375 | LINUX_S_ISDIR(inode.i_mode)) { |
1376 | if (fix_problem(ctx, PR_2_DIR_ACL_ZERO, &pctx)) { | |
1377 | inode.i_dir_acl = 0; | |
1378 | inode_modified++; | |
1379 | } else | |
1380 | not_fixed++; | |
21c84b71 | 1381 | } |
6c313fd4 | 1382 | |
f3db3566 | 1383 | if (inode_modified) |
08b21301 | 1384 | e2fsck_write_inode(ctx, ino, &inode, "process_bad_inode"); |
f76344fb | 1385 | if (!not_fixed && ctx->inode_bad_map) |
6c313fd4 | 1386 | ext2fs_unmark_inode_bitmap(ctx->inode_bad_map, ino); |
3839e657 TT |
1387 | return 0; |
1388 | } | |
1389 | ||
50e1e10f TT |
1390 | |
1391 | /* | |
1392 | * allocate_dir_block --- this function allocates a new directory | |
1393 | * block for a particular inode; this is done if a directory has | |
1394 | * a "hole" in it, or if a directory has a illegal block number | |
1395 | * that was zeroed out and now needs to be replaced. | |
1396 | */ | |
1b6bf175 | 1397 | static int allocate_dir_block(e2fsck_t ctx, |
21c84b71 | 1398 | struct ext2_db_entry *db, |
efc6f628 | 1399 | char *buf EXT2FS_ATTR((unused)), |
54434927 | 1400 | struct problem_context *pctx) |
50e1e10f | 1401 | { |
1b6bf175 | 1402 | ext2_filsys fs = ctx->fs; |
50e1e10f TT |
1403 | blk_t blk; |
1404 | char *block; | |
1405 | struct ext2_inode inode; | |
50e1e10f | 1406 | |
1b6bf175 | 1407 | if (fix_problem(ctx, PR_2_DIRECTORY_HOLE, pctx) == 0) |
50e1e10f TT |
1408 | return 1; |
1409 | ||
1410 | /* | |
1411 | * Read the inode and block bitmaps in; we'll be messing with | |
1412 | * them. | |
1413 | */ | |
f8188fff | 1414 | e2fsck_read_bitmaps(ctx); |
efc6f628 | 1415 | |
50e1e10f TT |
1416 | /* |
1417 | * First, find a free block | |
1418 | */ | |
1b6bf175 TT |
1419 | pctx->errcode = ext2fs_new_block(fs, 0, ctx->block_found_map, &blk); |
1420 | if (pctx->errcode) { | |
1421 | pctx->str = "ext2fs_new_block"; | |
1422 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
50e1e10f TT |
1423 | return 1; |
1424 | } | |
1b6bf175 | 1425 | ext2fs_mark_block_bitmap(ctx->block_found_map, blk); |
50e1e10f TT |
1426 | ext2fs_mark_block_bitmap(fs->block_map, blk); |
1427 | ext2fs_mark_bb_dirty(fs); | |
1428 | ||
1429 | /* | |
1430 | * Now let's create the actual data block for the inode | |
1431 | */ | |
1432 | if (db->blockcnt) | |
1b6bf175 | 1433 | pctx->errcode = ext2fs_new_dir_block(fs, 0, 0, &block); |
50e1e10f | 1434 | else |
1b6bf175 TT |
1435 | pctx->errcode = ext2fs_new_dir_block(fs, db->ino, |
1436 | EXT2_ROOT_INO, &block); | |
50e1e10f | 1437 | |
1b6bf175 TT |
1438 | if (pctx->errcode) { |
1439 | pctx->str = "ext2fs_new_dir_block"; | |
1440 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
50e1e10f TT |
1441 | return 1; |
1442 | } | |
1443 | ||
1b6bf175 | 1444 | pctx->errcode = ext2fs_write_dir_block(fs, blk, block); |
c4e3d3f3 | 1445 | ext2fs_free_mem(&block); |
1b6bf175 TT |
1446 | if (pctx->errcode) { |
1447 | pctx->str = "ext2fs_write_dir_block"; | |
1448 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
50e1e10f TT |
1449 | return 1; |
1450 | } | |
1451 | ||
1452 | /* | |
1453 | * Update the inode block count | |
1454 | */ | |
08b21301 | 1455 | e2fsck_read_inode(ctx, db->ino, &inode, "allocate_dir_block"); |
1ca1059f | 1456 | ext2fs_iblk_add_blocks(fs, &inode, 1); |
50e1e10f TT |
1457 | if (inode.i_size < (db->blockcnt+1) * fs->blocksize) |
1458 | inode.i_size = (db->blockcnt+1) * fs->blocksize; | |
08b21301 | 1459 | e2fsck_write_inode(ctx, db->ino, &inode, "allocate_dir_block"); |
50e1e10f TT |
1460 | |
1461 | /* | |
1462 | * Finally, update the block pointers for the inode | |
1463 | */ | |
1464 | db->blk = blk; | |
133a56dc | 1465 | pctx->errcode = ext2fs_block_iterate2(fs, db->ino, BLOCK_FLAG_HOLE, |
50e1e10f | 1466 | 0, update_dir_block, db); |
1b6bf175 TT |
1467 | if (pctx->errcode) { |
1468 | pctx->str = "ext2fs_block_iterate"; | |
1469 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
50e1e10f TT |
1470 | return 1; |
1471 | } | |
1472 | ||
1473 | return 0; | |
1474 | } | |
1475 | ||
1476 | /* | |
1477 | * This is a helper function for allocate_dir_block(). | |
1478 | */ | |
54434927 | 1479 | static int update_dir_block(ext2_filsys fs EXT2FS_ATTR((unused)), |
50e1e10f | 1480 | blk_t *block_nr, |
133a56dc | 1481 | e2_blkcnt_t blockcnt, |
54434927 | 1482 | blk_t ref_block EXT2FS_ATTR((unused)), |
efc6f628 | 1483 | int ref_offset EXT2FS_ATTR((unused)), |
54dc7ca2 | 1484 | void *priv_data) |
50e1e10f | 1485 | { |
54dc7ca2 | 1486 | struct ext2_db_entry *db; |
50e1e10f | 1487 | |
54dc7ca2 | 1488 | db = (struct ext2_db_entry *) priv_data; |
133a56dc | 1489 | if (db->blockcnt == (int) blockcnt) { |
50e1e10f TT |
1490 | *block_nr = db->blk; |
1491 | return BLOCK_CHANGED; | |
1492 | } | |
1493 | return 0; | |
1494 | } |