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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" |
0926668d | 50 | #include "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); |
3839e657 | 64 | static int check_dir_block(ext2_filsys fs, |
6dc64392 | 65 | struct ext2_db_entry2 *dir_blocks_info, |
54dc7ca2 | 66 | void *priv_data); |
1b6bf175 | 67 | static int allocate_dir_block(e2fsck_t ctx, |
6dc64392 | 68 | struct ext2_db_entry2 *dir_blocks_info, |
21c84b71 | 69 | char *buf, struct problem_context *pctx); |
8fdc9985 | 70 | static void clear_htree(e2fsck_t ctx, ext2_ino_t ino); |
ad4fa466 TT |
71 | static int htree_depth(struct dx_dir_info *dx_dir, |
72 | struct dx_dirblock_info *dx_db); | |
ea1959f0 | 73 | static EXT2_QSORT_TYPE special_dir_block_cmp(const void *a, const void *b); |
3839e657 | 74 | |
21c84b71 TT |
75 | struct check_dir_struct { |
76 | char *buf; | |
77 | struct problem_context pctx; | |
f8188fff | 78 | int count, max; |
1b6bf175 | 79 | e2fsck_t ctx; |
efc6f628 | 80 | }; |
21c84b71 | 81 | |
08b21301 | 82 | void e2fsck_pass2(e2fsck_t ctx) |
3839e657 | 83 | { |
a4742691 TT |
84 | struct ext2_super_block *sb = ctx->fs->super; |
85 | struct problem_context pctx; | |
86 | ext2_filsys fs = ctx->fs; | |
87 | char *buf; | |
8bf191e8 | 88 | #ifdef RESOURCE_TRACK |
3839e657 | 89 | struct resource_track rtrack; |
8bf191e8 | 90 | #endif |
21c84b71 | 91 | struct check_dir_struct cd; |
8fdc9985 TT |
92 | struct dx_dir_info *dx_dir; |
93 | struct dx_dirblock_info *dx_db, *dx_parent; | |
830b44f4 | 94 | unsigned int save_type; |
54434927 | 95 | int b; |
ad4fa466 | 96 | int i, depth; |
8fdc9985 TT |
97 | problem_t code; |
98 | int bad_dir; | |
99 | ||
6d96b00d | 100 | init_resource_track(&rtrack, ctx->fs->io); |
1b6bf175 TT |
101 | clear_problem_context(&cd.pctx); |
102 | ||
3839e657 TT |
103 | #ifdef MTRACE |
104 | mtrace_print("Pass 2"); | |
105 | #endif | |
106 | ||
1b6bf175 TT |
107 | if (!(ctx->options & E2F_OPT_PREEN)) |
108 | fix_problem(ctx, PR_2_PASS_HEADER, &cd.pctx); | |
109 | ||
efc6f628 | 110 | e2fsck_setup_tdb_icount(ctx, EXT2_ICOUNT_OPT_INCREMENT, |
34b9f796 TT |
111 | &ctx->inode_count); |
112 | if (ctx->inode_count) | |
113 | cd.pctx.errcode = 0; | |
830b44f4 TT |
114 | else { |
115 | e2fsck_set_bitmap_type(fs, EXT2FS_BMAP64_RBTREE, | |
116 | "inode_count", &save_type); | |
efc6f628 | 117 | cd.pctx.errcode = ext2fs_create_icount2(fs, |
34b9f796 | 118 | EXT2_ICOUNT_OPT_INCREMENT, |
1b6bf175 TT |
119 | 0, ctx->inode_link_info, |
120 | &ctx->inode_count); | |
830b44f4 TT |
121 | fs->default_bitmap_type = save_type; |
122 | } | |
1b6bf175 TT |
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; |
6dc64392 | 141 | cd.max = ext2fs_dblist_count2(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) | |
6dc64392 | 147 | ext2fs_dblist_sort2(fs->dblist, special_dir_block_cmp); |
efc6f628 | 148 | |
6dc64392 VAH |
149 | cd.pctx.errcode = ext2fs_dblist_iterate2(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 | } | |
8fdc9985 TT |
246 | } |
247 | if (bad_dir && fix_problem(ctx, PR_2_HTREE_CLEAR, &pctx)) { | |
248 | clear_htree(ctx, dx_dir->ino); | |
62acaa1d | 249 | dx_dir->numblocks = 0; |
8fdc9985 | 250 | } |
8fdc9985 | 251 | } |
23f75f6e | 252 | e2fsck_free_dx_dir_info(ctx); |
8fdc9985 | 253 | #endif |
c4e3d3f3 | 254 | ext2fs_free_mem(&buf); |
21c84b71 TT |
255 | ext2fs_free_dblist(fs->dblist); |
256 | ||
1b6bf175 TT |
257 | if (ctx->inode_bad_map) { |
258 | ext2fs_free_inode_bitmap(ctx->inode_bad_map); | |
259 | ctx->inode_bad_map = 0; | |
3839e657 | 260 | } |
aa4115a4 TT |
261 | if (ctx->inode_reg_map) { |
262 | ext2fs_free_inode_bitmap(ctx->inode_reg_map); | |
263 | ctx->inode_reg_map = 0; | |
264 | } | |
a4742691 TT |
265 | |
266 | clear_problem_context(&pctx); | |
267 | if (ctx->large_files) { | |
268 | if (!(sb->s_feature_ro_compat & | |
269 | EXT2_FEATURE_RO_COMPAT_LARGE_FILE) && | |
270 | fix_problem(ctx, PR_2_FEATURE_LARGE_FILES, &pctx)) { | |
271 | sb->s_feature_ro_compat |= | |
272 | EXT2_FEATURE_RO_COMPAT_LARGE_FILE; | |
0cfce7f7 | 273 | fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; |
a4742691 TT |
274 | ext2fs_mark_super_dirty(fs); |
275 | } | |
276 | if (sb->s_rev_level == EXT2_GOOD_OLD_REV && | |
277 | fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) { | |
278 | ext2fs_update_dynamic_rev(fs); | |
279 | ext2fs_mark_super_dirty(fs); | |
280 | } | |
a4742691 | 281 | } |
efc6f628 | 282 | |
9facd076 | 283 | print_resource_track(ctx, _("Pass 2"), &rtrack, fs->io); |
3839e657 TT |
284 | } |
285 | ||
ad4fa466 TT |
286 | #define MAX_DEPTH 32000 |
287 | static int htree_depth(struct dx_dir_info *dx_dir, | |
288 | struct dx_dirblock_info *dx_db) | |
289 | { | |
290 | int depth = 0; | |
291 | ||
292 | while (dx_db->type != DX_DIRBLOCK_ROOT && depth < MAX_DEPTH) { | |
293 | dx_db = &dx_dir->dx_block[dx_db->parent]; | |
294 | depth++; | |
295 | } | |
296 | return depth; | |
297 | } | |
298 | ||
0926668d TT |
299 | static int dict_de_cmp(const void *a, const void *b) |
300 | { | |
520ead37 | 301 | const struct ext2_dir_entry *de_a, *de_b; |
0926668d TT |
302 | int a_len, b_len; |
303 | ||
520ead37 | 304 | de_a = (const struct ext2_dir_entry *) a; |
0926668d | 305 | a_len = de_a->name_len & 0xFF; |
520ead37 | 306 | de_b = (const struct ext2_dir_entry *) b; |
0926668d TT |
307 | b_len = de_b->name_len & 0xFF; |
308 | ||
309 | if (a_len != b_len) | |
310 | return (a_len - b_len); | |
311 | ||
312 | return strncmp(de_a->name, de_b->name, a_len); | |
313 | } | |
ad4fa466 | 314 | |
ea1959f0 TT |
315 | /* |
316 | * This is special sort function that makes sure that directory blocks | |
317 | * with a dirblock of zero are sorted to the beginning of the list. | |
318 | * This guarantees that the root node of the htree directories are | |
319 | * processed first, so we know what hash version to use. | |
320 | */ | |
321 | static EXT2_QSORT_TYPE special_dir_block_cmp(const void *a, const void *b) | |
322 | { | |
6dc64392 VAH |
323 | const struct ext2_db_entry2 *db_a = |
324 | (const struct ext2_db_entry2 *) a; | |
325 | const struct ext2_db_entry2 *db_b = | |
326 | (const struct ext2_db_entry2 *) b; | |
ea1959f0 TT |
327 | |
328 | if (db_a->blockcnt && !db_b->blockcnt) | |
329 | return 1; | |
330 | ||
331 | if (!db_a->blockcnt && db_b->blockcnt) | |
332 | return -1; | |
efc6f628 | 333 | |
ea1959f0 TT |
334 | if (db_a->blk != db_b->blk) |
335 | return (int) (db_a->blk - db_b->blk); | |
efc6f628 | 336 | |
ea1959f0 TT |
337 | if (db_a->ino != db_b->ino) |
338 | return (int) (db_a->ino - db_b->ino); | |
339 | ||
340 | return (int) (db_a->blockcnt - db_b->blockcnt); | |
341 | } | |
342 | ||
343 | ||
3839e657 TT |
344 | /* |
345 | * Make sure the first entry in the directory is '.', and that the | |
346 | * directory entry is sane. | |
347 | */ | |
1b6bf175 | 348 | static int check_dot(e2fsck_t ctx, |
3839e657 | 349 | struct ext2_dir_entry *dirent, |
86c627ec | 350 | ext2_ino_t ino, struct problem_context *pctx) |
3839e657 TT |
351 | { |
352 | struct ext2_dir_entry *nextdir; | |
8a480350 | 353 | unsigned int rec_len, new_len; |
3839e657 TT |
354 | int status = 0; |
355 | int created = 0; | |
21c84b71 | 356 | int problem = 0; |
efc6f628 | 357 | |
21c84b71 TT |
358 | if (!dirent->inode) |
359 | problem = PR_2_MISSING_DOT; | |
b6f79831 | 360 | else if (((dirent->name_len & 0xFF) != 1) || |
21c84b71 TT |
361 | (dirent->name[0] != '.')) |
362 | problem = PR_2_1ST_NOT_DOT; | |
363 | else if (dirent->name[1] != '\0') | |
364 | problem = PR_2_DOT_NULL_TERM; | |
5dd77dbe | 365 | |
8a480350 | 366 | (void) ext2fs_get_rec_len(ctx->fs, dirent, &rec_len); |
21c84b71 | 367 | if (problem) { |
1b6bf175 | 368 | if (fix_problem(ctx, problem, pctx)) { |
5dd77dbe TT |
369 | if (rec_len < 12) |
370 | rec_len = dirent->rec_len = 12; | |
3839e657 TT |
371 | dirent->inode = ino; |
372 | dirent->name_len = 1; | |
373 | dirent->name[0] = '.'; | |
21c84b71 | 374 | dirent->name[1] = '\0'; |
3839e657 TT |
375 | status = 1; |
376 | created = 1; | |
3839e657 TT |
377 | } |
378 | } | |
3839e657 | 379 | if (dirent->inode != ino) { |
1b6bf175 | 380 | if (fix_problem(ctx, PR_2_BAD_INODE_DOT, pctx)) { |
3839e657 TT |
381 | dirent->inode = ino; |
382 | status = 1; | |
21c84b71 | 383 | } |
3839e657 | 384 | } |
5dd77dbe TT |
385 | if (rec_len > 12) { |
386 | new_len = rec_len - 12; | |
3839e657 | 387 | if (new_len > 12) { |
3839e657 | 388 | if (created || |
f8188fff | 389 | fix_problem(ctx, PR_2_SPLIT_DOT, pctx)) { |
3839e657 TT |
390 | nextdir = (struct ext2_dir_entry *) |
391 | ((char *) dirent + 12); | |
392 | dirent->rec_len = 12; | |
8a480350 TT |
393 | (void) ext2fs_set_rec_len(ctx->fs, new_len, |
394 | nextdir); | |
3839e657 TT |
395 | nextdir->inode = 0; |
396 | nextdir->name_len = 0; | |
397 | status = 1; | |
398 | } | |
399 | } | |
400 | } | |
401 | return status; | |
402 | } | |
403 | ||
404 | /* | |
405 | * Make sure the second entry in the directory is '..', and that the | |
406 | * directory entry is sane. We do not check the inode number of '..' | |
407 | * here; this gets done in pass 3. | |
408 | */ | |
1b6bf175 | 409 | static int check_dotdot(e2fsck_t ctx, |
3839e657 | 410 | struct ext2_dir_entry *dirent, |
28db82a8 | 411 | ext2_ino_t ino, struct problem_context *pctx) |
3839e657 | 412 | { |
cf5301d7 AD |
413 | int problem = 0; |
414 | unsigned int rec_len; | |
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 | ||
8a480350 | 425 | (void) ext2fs_get_rec_len(ctx->fs, dirent, &rec_len); |
21c84b71 | 426 | if (problem) { |
1b6bf175 | 427 | if (fix_problem(ctx, problem, pctx)) { |
5dd77dbe | 428 | if (rec_len < 12) |
21c84b71 | 429 | dirent->rec_len = 12; |
3839e657 TT |
430 | /* |
431 | * Note: we don't have the parent inode just | |
432 | * yet, so we will fill it in with the root | |
433 | * inode. This will get fixed in pass 3. | |
434 | */ | |
435 | dirent->inode = EXT2_ROOT_INO; | |
436 | dirent->name_len = 2; | |
437 | dirent->name[0] = '.'; | |
438 | dirent->name[1] = '.'; | |
21c84b71 | 439 | dirent->name[2] = '\0'; |
3839e657 | 440 | return 1; |
efc6f628 | 441 | } |
3839e657 TT |
442 | return 0; |
443 | } | |
28db82a8 TT |
444 | if (e2fsck_dir_info_set_dotdot(ctx, ino, dirent->inode)) { |
445 | fix_problem(ctx, PR_2_NO_DIRINFO, pctx); | |
446 | return -1; | |
447 | } | |
3839e657 TT |
448 | return 0; |
449 | } | |
450 | ||
451 | /* | |
452 | * Check to make sure a directory entry doesn't contain any illegal | |
453 | * characters. | |
454 | */ | |
1b6bf175 | 455 | static int check_name(e2fsck_t ctx, |
3839e657 | 456 | struct ext2_dir_entry *dirent, |
efc6f628 | 457 | ext2_ino_t dir_ino EXT2FS_ATTR((unused)), |
54434927 | 458 | struct problem_context *pctx) |
3839e657 TT |
459 | { |
460 | int i; | |
461 | int fixup = -1; | |
3839e657 | 462 | int ret = 0; |
efc6f628 | 463 | |
b6f79831 | 464 | for ( i = 0; i < (dirent->name_len & 0xFF); i++) { |
3839e657 TT |
465 | if (dirent->name[i] == '/' || dirent->name[i] == '\0') { |
466 | if (fixup < 0) { | |
1b6bf175 | 467 | fixup = fix_problem(ctx, PR_2_BAD_NAME, pctx); |
3839e657 TT |
468 | } |
469 | if (fixup) { | |
470 | dirent->name[i] = '.'; | |
471 | ret = 1; | |
21c84b71 | 472 | } |
3839e657 TT |
473 | } |
474 | } | |
475 | return ret; | |
476 | } | |
477 | ||
aa4115a4 TT |
478 | /* |
479 | * Check the directory filetype (if present) | |
480 | */ | |
481 | static _INLINE_ int check_filetype(e2fsck_t ctx, | |
54434927 TT |
482 | struct ext2_dir_entry *dirent, |
483 | ext2_ino_t dir_ino EXT2FS_ATTR((unused)), | |
484 | struct problem_context *pctx) | |
aa4115a4 TT |
485 | { |
486 | int filetype = dirent->name_len >> 8; | |
487 | int should_be = EXT2_FT_UNKNOWN; | |
488 | struct ext2_inode inode; | |
489 | ||
490 | if (!(ctx->fs->super->s_feature_incompat & | |
7847c1d4 TT |
491 | EXT2_FEATURE_INCOMPAT_FILETYPE)) { |
492 | if (filetype == 0 || | |
493 | !fix_problem(ctx, PR_2_CLEAR_FILETYPE, pctx)) | |
494 | return 0; | |
495 | dirent->name_len = dirent->name_len & 0xFF; | |
496 | return 1; | |
497 | } | |
aa4115a4 | 498 | |
c5d2f50d | 499 | if (ext2fs_test_inode_bitmap2(ctx->inode_dir_map, dirent->inode)) { |
aa4115a4 | 500 | should_be = EXT2_FT_DIR; |
c5d2f50d | 501 | } else if (ext2fs_test_inode_bitmap2(ctx->inode_reg_map, |
aa4115a4 TT |
502 | dirent->inode)) { |
503 | should_be = EXT2_FT_REG_FILE; | |
504 | } else if (ctx->inode_bad_map && | |
c5d2f50d | 505 | ext2fs_test_inode_bitmap2(ctx->inode_bad_map, |
aa4115a4 TT |
506 | dirent->inode)) |
507 | should_be = 0; | |
508 | else { | |
509 | e2fsck_read_inode(ctx, dirent->inode, &inode, | |
510 | "check_filetype"); | |
6fdc7a32 | 511 | should_be = ext2_file_type(inode.i_mode); |
aa4115a4 TT |
512 | } |
513 | if (filetype == should_be) | |
514 | return 0; | |
515 | pctx->num = should_be; | |
516 | ||
517 | if (fix_problem(ctx, filetype ? PR_2_BAD_FILETYPE : PR_2_SET_FILETYPE, | |
518 | pctx) == 0) | |
519 | return 0; | |
efc6f628 | 520 | |
aa4115a4 TT |
521 | dirent->name_len = (dirent->name_len & 0xFF) | should_be << 8; |
522 | return 1; | |
523 | } | |
524 | ||
8fdc9985 TT |
525 | #ifdef ENABLE_HTREE |
526 | static void parse_int_node(ext2_filsys fs, | |
6dc64392 | 527 | struct ext2_db_entry2 *db, |
8fdc9985 TT |
528 | struct check_dir_struct *cd, |
529 | struct dx_dir_info *dx_dir, | |
07307114 | 530 | char *block_buf, int failed_csum) |
8fdc9985 TT |
531 | { |
532 | struct ext2_dx_root_info *root; | |
533 | struct ext2_dx_entry *ent; | |
534 | struct ext2_dx_countlimit *limit; | |
535 | struct dx_dirblock_info *dx_db; | |
ad4fa466 | 536 | int i, expect_limit, count; |
8fdc9985 TT |
537 | blk_t blk; |
538 | ext2_dirhash_t min_hash = 0xffffffff; | |
539 | ext2_dirhash_t max_hash = 0; | |
ad4fa466 | 540 | ext2_dirhash_t hash = 0, prev_hash; |
07307114 | 541 | int csum_size = 0; |
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); | |
07307114 DW |
556 | |
557 | if (failed_csum && | |
558 | (e2fsck_dir_will_be_rehashed(cd->ctx, cd->pctx.ino) || | |
559 | fix_problem(cd->ctx, PR_2_HTREE_ROOT_CSUM_INVALID, | |
560 | &cd->pctx))) | |
561 | goto clear_and_exit; | |
8fdc9985 TT |
562 | } else { |
563 | ent = (struct ext2_dx_entry *) (block_buf+8); | |
07307114 DW |
564 | |
565 | if (failed_csum && | |
566 | (e2fsck_dir_will_be_rehashed(cd->ctx, cd->pctx.ino) || | |
567 | fix_problem(cd->ctx, PR_2_HTREE_NODE_CSUM_INVALID, | |
568 | &cd->pctx))) | |
569 | goto clear_and_exit; | |
8fdc9985 | 570 | } |
07307114 | 571 | |
8fdc9985 TT |
572 | limit = (struct ext2_dx_countlimit *) ent; |
573 | ||
574 | #ifdef DX_DEBUG | |
efc6f628 | 575 | printf("Number of entries (count): %d\n", |
8132d840 | 576 | ext2fs_le16_to_cpu(limit->count)); |
efc6f628 | 577 | printf("Number of entries (limit): %d\n", |
8132d840 | 578 | ext2fs_le16_to_cpu(limit->limit)); |
8fdc9985 TT |
579 | #endif |
580 | ||
8132d840 | 581 | count = ext2fs_le16_to_cpu(limit->count); |
07307114 DW |
582 | if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super, |
583 | EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) | |
584 | csum_size = sizeof(struct ext2_dx_tail); | |
585 | expect_limit = (fs->blocksize - | |
586 | (csum_size + ((char *) ent - block_buf))) / | |
587 | sizeof(struct ext2_dx_entry); | |
8132d840 TT |
588 | if (ext2fs_le16_to_cpu(limit->limit) != expect_limit) { |
589 | cd->pctx.num = ext2fs_le16_to_cpu(limit->limit); | |
ad4fa466 TT |
590 | if (fix_problem(cd->ctx, PR_2_HTREE_BAD_LIMIT, &cd->pctx)) |
591 | goto clear_and_exit; | |
592 | } | |
8132d840 TT |
593 | if (count > expect_limit) { |
594 | cd->pctx.num = count; | |
ad4fa466 TT |
595 | if (fix_problem(cd->ctx, PR_2_HTREE_BAD_COUNT, &cd->pctx)) |
596 | goto clear_and_exit; | |
597 | count = expect_limit; | |
598 | } | |
efc6f628 | 599 | |
ad4fa466 TT |
600 | for (i=0; i < count; i++) { |
601 | prev_hash = hash; | |
8132d840 | 602 | hash = i ? (ext2fs_le32_to_cpu(ent[i].hash) & ~1) : 0; |
8fdc9985 | 603 | #ifdef DX_DEBUG |
8deb80a5 | 604 | printf("Entry #%d: Hash 0x%08x, block %u\n", i, |
8132d840 | 605 | hash, ext2fs_le32_to_cpu(ent[i].block)); |
8fdc9985 | 606 | #endif |
8132d840 | 607 | blk = ext2fs_le32_to_cpu(ent[i].block) & 0x0ffffff; |
8fdc9985 | 608 | /* Check to make sure the block is valid */ |
977ac873 | 609 | if (blk >= (blk_t) dx_dir->numblocks) { |
b7a00563 | 610 | cd->pctx.blk = blk; |
8fdc9985 | 611 | if (fix_problem(cd->ctx, PR_2_HTREE_BADBLK, |
ad4fa466 TT |
612 | &cd->pctx)) |
613 | goto clear_and_exit; | |
977ac873 | 614 | continue; |
8fdc9985 | 615 | } |
ad4fa466 TT |
616 | if (hash < prev_hash && |
617 | fix_problem(cd->ctx, PR_2_HTREE_HASH_ORDER, &cd->pctx)) | |
618 | goto clear_and_exit; | |
8fdc9985 TT |
619 | dx_db = &dx_dir->dx_block[blk]; |
620 | if (dx_db->flags & DX_FLAG_REFERENCED) { | |
621 | dx_db->flags |= DX_FLAG_DUP_REF; | |
622 | } else { | |
623 | dx_db->flags |= DX_FLAG_REFERENCED; | |
624 | dx_db->parent = db->blockcnt; | |
625 | } | |
626 | if (hash < min_hash) | |
627 | min_hash = hash; | |
628 | if (hash > max_hash) | |
629 | max_hash = hash; | |
630 | dx_db->node_min_hash = hash; | |
8132d840 | 631 | if ((i+1) < count) |
efc6f628 | 632 | dx_db->node_max_hash = |
8132d840 | 633 | ext2fs_le32_to_cpu(ent[i+1].hash) & ~1; |
8fdc9985 TT |
634 | else { |
635 | dx_db->node_max_hash = 0xfffffffe; | |
636 | dx_db->flags |= DX_FLAG_LAST; | |
637 | } | |
638 | if (i == 0) | |
639 | dx_db->flags |= DX_FLAG_FIRST; | |
640 | } | |
641 | #ifdef DX_DEBUG | |
642 | printf("Blockcnt = %d, min hash 0x%08x, max hash 0x%08x\n", | |
643 | db->blockcnt, min_hash, max_hash); | |
644 | #endif | |
645 | dx_db = &dx_dir->dx_block[db->blockcnt]; | |
646 | dx_db->min_hash = min_hash; | |
647 | dx_db->max_hash = max_hash; | |
ad4fa466 TT |
648 | return; |
649 | ||
650 | clear_and_exit: | |
651 | clear_htree(cd->ctx, cd->pctx.ino); | |
652 | dx_dir->numblocks = 0; | |
07307114 | 653 | e2fsck_rehash_dir_later(cd->ctx, cd->pctx.ino); |
8fdc9985 TT |
654 | } |
655 | #endif /* ENABLE_HTREE */ | |
aa4115a4 | 656 | |
e70ae99e TT |
657 | /* |
658 | * Given a busted directory, try to salvage it somehow. | |
efc6f628 | 659 | * |
e70ae99e | 660 | */ |
ad4fa466 | 661 | static void salvage_directory(ext2_filsys fs, |
e70ae99e TT |
662 | struct ext2_dir_entry *dirent, |
663 | struct ext2_dir_entry *prev, | |
54434927 | 664 | unsigned int *offset) |
e70ae99e TT |
665 | { |
666 | char *cp = (char *) dirent; | |
8a480350 TT |
667 | int left; |
668 | unsigned int rec_len, prev_rec_len; | |
642935c0 | 669 | unsigned int name_len = dirent->name_len & 0xFF; |
e70ae99e | 670 | |
8a480350 | 671 | (void) ext2fs_get_rec_len(fs, dirent, &rec_len); |
5dd77dbe TT |
672 | left = fs->blocksize - *offset - rec_len; |
673 | ||
e70ae99e TT |
674 | /* |
675 | * Special case of directory entry of size 8: copy what's left | |
676 | * of the directory block up to cover up the invalid hole. | |
677 | */ | |
5dd77dbe | 678 | if ((left >= 12) && (rec_len == 8)) { |
e70ae99e TT |
679 | memmove(cp, cp+8, left); |
680 | memset(cp + left, 0, 8); | |
ad4fa466 TT |
681 | return; |
682 | } | |
683 | /* | |
684 | * If the directory entry overruns the end of the directory | |
685 | * block, and the name is small enough to fit, then adjust the | |
686 | * record length. | |
687 | */ | |
688 | if ((left < 0) && | |
8a480350 TT |
689 | ((int) rec_len + left > 8) && |
690 | (name_len + 8 <= (int) rec_len + left) && | |
ad4fa466 TT |
691 | dirent->inode <= fs->super->s_inodes_count && |
692 | strnlen(dirent->name, name_len) == name_len) { | |
8a480350 | 693 | (void) ext2fs_set_rec_len(fs, (int) rec_len + left, dirent); |
ad4fa466 | 694 | return; |
e70ae99e TT |
695 | } |
696 | /* | |
575307cc KS |
697 | * If the record length of the directory entry is a multiple |
698 | * of four, and not too big, such that it is valid, let the | |
699 | * previous directory entry absorb the invalid one. | |
e70ae99e | 700 | */ |
5dd77dbe TT |
701 | if (prev && rec_len && (rec_len % 4) == 0 && |
702 | (*offset + rec_len <= fs->blocksize)) { | |
8a480350 TT |
703 | (void) ext2fs_get_rec_len(fs, prev, &prev_rec_len); |
704 | prev_rec_len += rec_len; | |
705 | (void) ext2fs_set_rec_len(fs, prev_rec_len, prev); | |
5dd77dbe | 706 | *offset += rec_len; |
ad4fa466 | 707 | return; |
e70ae99e TT |
708 | } |
709 | /* | |
710 | * Default salvage method --- kill all of the directory | |
711 | * entries for the rest of the block. We will either try to | |
712 | * absorb it into the previous directory entry, or create a | |
713 | * new empty directory entry the rest of the directory block. | |
714 | */ | |
715 | if (prev) { | |
8a480350 TT |
716 | (void) ext2fs_get_rec_len(fs, prev, &prev_rec_len); |
717 | prev_rec_len += fs->blocksize - *offset; | |
718 | (void) ext2fs_set_rec_len(fs, prev_rec_len, prev); | |
ad4fa466 | 719 | *offset = fs->blocksize; |
e70ae99e | 720 | } else { |
8a480350 TT |
721 | rec_len = fs->blocksize - *offset; |
722 | (void) ext2fs_set_rec_len(fs, rec_len, dirent); | |
e70ae99e TT |
723 | dirent->name_len = 0; |
724 | dirent->inode = 0; | |
e70ae99e | 725 | } |
e70ae99e TT |
726 | } |
727 | ||
3839e657 | 728 | static int check_dir_block(ext2_filsys fs, |
6dc64392 | 729 | struct ext2_db_entry2 *db, |
54dc7ca2 | 730 | void *priv_data) |
3839e657 | 731 | { |
8fdc9985 TT |
732 | struct dx_dir_info *dx_dir; |
733 | #ifdef ENABLE_HTREE | |
734 | struct dx_dirblock_info *dx_db = 0; | |
735 | #endif /* ENABLE_HTREE */ | |
e70ae99e | 736 | struct ext2_dir_entry *dirent, *prev; |
8fdc9985 | 737 | ext2_dirhash_t hash; |
54434927 | 738 | unsigned int offset = 0; |
3839e657 | 739 | int dir_modified = 0; |
21c84b71 | 740 | int dot_state; |
03fa6f8a | 741 | unsigned int rec_len; |
6dc64392 | 742 | blk64_t block_nr = db->blk; |
86c627ec | 743 | ext2_ino_t ino = db->ino; |
28db82a8 | 744 | ext2_ino_t subdir_parent; |
21c84b71 | 745 | __u16 links; |
54dc7ca2 | 746 | struct check_dir_struct *cd; |
1b6bf175 TT |
747 | char *buf; |
748 | e2fsck_t ctx; | |
749 | int problem; | |
ea1959f0 | 750 | struct ext2_dx_root_info *root; |
e8254bfd | 751 | struct ext2_dx_countlimit *limit; |
0926668d TT |
752 | static dict_t de_dict; |
753 | struct problem_context pctx; | |
754 | int dups_found = 0; | |
28db82a8 | 755 | int ret; |
07307114 | 756 | int dx_csum_size = 0; |
81683c6a | 757 | int failed_csum = 0; |
1b6bf175 | 758 | |
54dc7ca2 | 759 | cd = (struct check_dir_struct *) priv_data; |
1b6bf175 TT |
760 | buf = cd->buf; |
761 | ctx = cd->ctx; | |
f8188fff | 762 | |
49a7360b | 763 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK || ctx->flags & E2F_FLAG_RESTART) |
4cae0452 | 764 | return DIRENT_ABORT; |
efc6f628 | 765 | |
4cae0452 TT |
766 | if (ctx->progress && (ctx->progress)(ctx, 2, cd->count++, cd->max)) |
767 | return DIRENT_ABORT; | |
efc6f628 | 768 | |
07307114 DW |
769 | if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super, |
770 | EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) | |
771 | dx_csum_size = sizeof(struct ext2_dx_tail); | |
772 | ||
3839e657 | 773 | /* |
efc6f628 | 774 | * Make sure the inode is still in use (could have been |
3839e657 TT |
775 | * deleted in the duplicate/bad blocks pass. |
776 | */ | |
c5d2f50d | 777 | if (!(ext2fs_test_inode_bitmap2(ctx->inode_used_map, ino))) |
3839e657 | 778 | return 0; |
50e1e10f | 779 | |
21c84b71 TT |
780 | cd->pctx.ino = ino; |
781 | cd->pctx.blk = block_nr; | |
782 | cd->pctx.blkcount = db->blockcnt; | |
783 | cd->pctx.ino2 = 0; | |
784 | cd->pctx.dirent = 0; | |
785 | cd->pctx.num = 0; | |
786 | ||
50e1e10f | 787 | if (db->blk == 0) { |
1b6bf175 | 788 | if (allocate_dir_block(ctx, db, buf, &cd->pctx)) |
50e1e10f TT |
789 | return 0; |
790 | block_nr = db->blk; | |
791 | } | |
efc6f628 | 792 | |
3839e657 TT |
793 | if (db->blockcnt) |
794 | dot_state = 2; | |
795 | else | |
796 | dot_state = 0; | |
797 | ||
0926668d TT |
798 | if (ctx->dirs_to_hash && |
799 | ext2fs_u32_list_test(ctx->dirs_to_hash, ino)) | |
800 | dups_found++; | |
801 | ||
3839e657 | 802 | #if 0 |
f3db3566 | 803 | printf("In process_dir_block block %lu, #%d, inode %lu\n", block_nr, |
3839e657 TT |
804 | db->blockcnt, ino); |
805 | #endif | |
efc6f628 | 806 | |
f85a9ae6 | 807 | ehandler_operation(_("reading directory block")); |
81683c6a | 808 | cd->pctx.errcode = ext2fs_read_dir_block4(fs, block_nr, buf, 0, ino); |
e94bc631 | 809 | ehandler_operation(0); |
b9852cd8 TT |
810 | if (cd->pctx.errcode == EXT2_ET_DIR_CORRUPTED) |
811 | cd->pctx.errcode = 0; /* We'll handle this ourselves */ | |
81683c6a DW |
812 | else if (cd->pctx.errcode == EXT2_ET_DIR_CSUM_INVALID) { |
813 | cd->pctx.errcode = 0; /* We'll handle this ourselves */ | |
814 | failed_csum = 1; | |
815 | } | |
1b6bf175 | 816 | if (cd->pctx.errcode) { |
08b21301 TT |
817 | if (!fix_problem(ctx, PR_2_READ_DIRBLOCK, &cd->pctx)) { |
818 | ctx->flags |= E2F_FLAG_ABORT; | |
819 | return DIRENT_ABORT; | |
820 | } | |
1b6bf175 | 821 | memset(buf, 0, fs->blocksize); |
3839e657 | 822 | } |
8fdc9985 TT |
823 | #ifdef ENABLE_HTREE |
824 | dx_dir = e2fsck_get_dx_dir_info(ctx, ino); | |
62acaa1d | 825 | if (dx_dir && dx_dir->numblocks) { |
8fdc9985 | 826 | if (db->blockcnt >= dx_dir->numblocks) { |
efc6f628 | 827 | if (fix_problem(ctx, PR_2_UNEXPECTED_HTREE_BLOCK, |
d45edec0 TT |
828 | &pctx)) { |
829 | clear_htree(ctx, ino); | |
830 | dx_dir->numblocks = 0; | |
831 | dx_db = 0; | |
832 | goto out_htree; | |
833 | } | |
834 | fatal_error(ctx, _("Can not continue.")); | |
8fdc9985 TT |
835 | } |
836 | dx_db = &dx_dir->dx_block[db->blockcnt]; | |
837 | dx_db->type = DX_DIRBLOCK_LEAF; | |
838 | dx_db->phys = block_nr; | |
839 | dx_db->min_hash = ~0; | |
840 | dx_db->max_hash = 0; | |
efc6f628 | 841 | |
8fdc9985 | 842 | dirent = (struct ext2_dir_entry *) buf; |
8a480350 | 843 | (void) ext2fs_get_rec_len(fs, dirent, &rec_len); |
e8254bfd | 844 | limit = (struct ext2_dx_countlimit *) (buf+8); |
8fdc9985 | 845 | if (db->blockcnt == 0) { |
ea1959f0 | 846 | root = (struct ext2_dx_root_info *) (buf + 24); |
8fdc9985 TT |
847 | dx_db->type = DX_DIRBLOCK_ROOT; |
848 | dx_db->flags |= DX_FLAG_FIRST | DX_FLAG_LAST; | |
ea1959f0 TT |
849 | if ((root->reserved_zero || |
850 | root->info_length < 8 || | |
851 | root->indirect_levels > 1) && | |
852 | fix_problem(ctx, PR_2_HTREE_BAD_ROOT, &cd->pctx)) { | |
853 | clear_htree(ctx, ino); | |
854 | dx_dir->numblocks = 0; | |
855 | dx_db = 0; | |
f77704e4 | 856 | } |
ea1959f0 | 857 | dx_dir->hashversion = root->hash_version; |
f77704e4 TT |
858 | if ((dx_dir->hashversion <= EXT2_HASH_TEA) && |
859 | (fs->super->s_flags & EXT2_FLAGS_UNSIGNED_HASH)) | |
860 | dx_dir->hashversion += 3; | |
ad4fa466 | 861 | dx_dir->depth = root->indirect_levels + 1; |
8fdc9985 | 862 | } else if ((dirent->inode == 0) && |
5dd77dbe | 863 | (rec_len == fs->blocksize) && |
e8254bfd | 864 | (dirent->name_len == 0) && |
efc6f628 | 865 | (ext2fs_le16_to_cpu(limit->limit) == |
07307114 | 866 | ((fs->blocksize - (8 + dx_csum_size)) / |
8132d840 | 867 | sizeof(struct ext2_dx_entry)))) |
8fdc9985 TT |
868 | dx_db->type = DX_DIRBLOCK_NODE; |
869 | } | |
d45edec0 | 870 | out_htree: |
8fdc9985 | 871 | #endif /* ENABLE_HTREE */ |
3839e657 | 872 | |
0926668d | 873 | dict_init(&de_dict, DICTCOUNT_T_MAX, dict_de_cmp); |
e70ae99e | 874 | prev = 0; |
3839e657 | 875 | do { |
49a7360b JS |
876 | int group; |
877 | ext2_ino_t first_unused_inode; | |
878 | ||
1b6bf175 | 879 | problem = 0; |
3839e657 | 880 | dirent = (struct ext2_dir_entry *) (buf + offset); |
8a480350 | 881 | (void) ext2fs_get_rec_len(fs, dirent, &rec_len); |
21c84b71 TT |
882 | cd->pctx.dirent = dirent; |
883 | cd->pctx.num = offset; | |
5dd77dbe TT |
884 | if (((offset + rec_len) > fs->blocksize) || |
885 | (rec_len < 12) || | |
886 | ((rec_len % 4) != 0) || | |
03fa6f8a | 887 | (((dirent->name_len & (unsigned) 0xFF)+8) > rec_len)) { |
1b6bf175 | 888 | if (fix_problem(ctx, PR_2_DIR_CORRUPTED, &cd->pctx)) { |
ad4fa466 | 889 | salvage_directory(fs, dirent, prev, &offset); |
3839e657 | 890 | dir_modified++; |
e70ae99e | 891 | continue; |
21c84b71 | 892 | } else |
0926668d | 893 | goto abort_free_dict; |
3839e657 | 894 | } |
50e1e10f | 895 | |
e70ae99e | 896 | if (dot_state == 0) { |
1b6bf175 | 897 | if (check_dot(ctx, dirent, ino, &cd->pctx)) |
3839e657 | 898 | dir_modified++; |
e70ae99e | 899 | } else if (dot_state == 1) { |
28db82a8 TT |
900 | ret = check_dotdot(ctx, dirent, ino, &cd->pctx); |
901 | if (ret < 0) | |
0926668d | 902 | goto abort_free_dict; |
28db82a8 | 903 | if (ret) |
3839e657 TT |
904 | dir_modified++; |
905 | } else if (dirent->inode == ino) { | |
1b6bf175 TT |
906 | problem = PR_2_LINK_DOT; |
907 | if (fix_problem(ctx, PR_2_LINK_DOT, &cd->pctx)) { | |
3839e657 TT |
908 | dirent->inode = 0; |
909 | dir_modified++; | |
21c84b71 | 910 | goto next; |
3839e657 TT |
911 | } |
912 | } | |
efc6f628 | 913 | if (!dirent->inode) |
3839e657 | 914 | goto next; |
efc6f628 | 915 | |
3839e657 TT |
916 | /* |
917 | * Make sure the inode listed is a legal one. | |
efc6f628 | 918 | */ |
3839e657 | 919 | if (((dirent->inode != EXT2_ROOT_INO) && |
7f88b043 | 920 | (dirent->inode < EXT2_FIRST_INODE(fs->super))) || |
3839e657 | 921 | (dirent->inode > fs->super->s_inodes_count)) { |
1b6bf175 | 922 | problem = PR_2_BAD_INO; |
1b6bf175 | 923 | } else if (ctx->inode_bb_map && |
c5d2f50d | 924 | (ext2fs_test_inode_bitmap2(ctx->inode_bb_map, |
1b6bf175 TT |
925 | dirent->inode))) { |
926 | /* | |
927 | * If the inode is in a bad block, offer to | |
928 | * clear it. | |
929 | */ | |
930 | problem = PR_2_BB_INODE; | |
e70ae99e | 931 | } else if ((dot_state > 1) && |
b6f79831 | 932 | ((dirent->name_len & 0xFF) == 1) && |
1b6bf175 TT |
933 | (dirent->name[0] == '.')) { |
934 | /* | |
935 | * If there's a '.' entry in anything other | |
936 | * than the first directory entry, it's a | |
937 | * duplicate entry that should be removed. | |
938 | */ | |
939 | problem = PR_2_DUP_DOT; | |
e70ae99e | 940 | } else if ((dot_state > 1) && |
b6f79831 | 941 | ((dirent->name_len & 0xFF) == 2) && |
efc6f628 | 942 | (dirent->name[0] == '.') && |
1b6bf175 TT |
943 | (dirent->name[1] == '.')) { |
944 | /* | |
945 | * If there's a '..' entry in anything other | |
946 | * than the second directory entry, it's a | |
947 | * duplicate entry that should be removed. | |
948 | */ | |
949 | problem = PR_2_DUP_DOT_DOT; | |
e70ae99e | 950 | } else if ((dot_state > 1) && |
1b6bf175 TT |
951 | (dirent->inode == EXT2_ROOT_INO)) { |
952 | /* | |
953 | * Don't allow links to the root directory. | |
954 | * We check this specially to make sure we | |
955 | * catch this error case even if the root | |
956 | * directory hasn't been created yet. | |
957 | */ | |
958 | problem = PR_2_LINK_ROOT; | |
e70ae99e | 959 | } else if ((dot_state > 1) && |
c40db6d5 TT |
960 | (dirent->name_len & 0xFF) == 0) { |
961 | /* | |
962 | * Don't allow zero-length directory names. | |
963 | */ | |
964 | problem = PR_2_NULL_NAME; | |
21c84b71 TT |
965 | } |
966 | ||
1b6bf175 TT |
967 | if (problem) { |
968 | if (fix_problem(ctx, problem, &cd->pctx)) { | |
21c84b71 TT |
969 | dirent->inode = 0; |
970 | dir_modified++; | |
971 | goto next; | |
1b6bf175 TT |
972 | } else { |
973 | ext2fs_unmark_valid(fs); | |
974 | if (problem == PR_2_BAD_INO) | |
975 | goto next; | |
21c84b71 | 976 | } |
3839e657 TT |
977 | } |
978 | ||
979 | /* | |
980 | * If the inode was marked as having bad fields in | |
981 | * pass1, process it and offer to fix/clear it. | |
982 | * (We wait until now so that we can display the | |
983 | * pathname to the user.) | |
984 | */ | |
1b6bf175 | 985 | if (ctx->inode_bad_map && |
c5d2f50d | 986 | ext2fs_test_inode_bitmap2(ctx->inode_bad_map, |
3839e657 | 987 | dirent->inode)) { |
e72a9ba3 | 988 | if (e2fsck_process_bad_inode(ctx, ino, |
bcf9c5d4 TT |
989 | dirent->inode, |
990 | buf + fs->blocksize)) { | |
3839e657 TT |
991 | dirent->inode = 0; |
992 | dir_modified++; | |
993 | goto next; | |
994 | } | |
a02ce9df | 995 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK) |
08b21301 | 996 | return DIRENT_ABORT; |
3839e657 TT |
997 | } |
998 | ||
49a7360b JS |
999 | group = ext2fs_group_of_ino(fs, dirent->inode); |
1000 | first_unused_inode = group * fs->super->s_inodes_per_group + | |
1001 | 1 + fs->super->s_inodes_per_group - | |
d7cca6b0 | 1002 | ext2fs_bg_itable_unused(fs, group); |
49a7360b JS |
1003 | cd->pctx.group = group; |
1004 | ||
1005 | /* | |
42e89ce7 TT |
1006 | * Check if the inode was missed out because |
1007 | * _INODE_UNINIT flag was set or bg_itable_unused was | |
1008 | * incorrect. If so, clear the _INODE_UNINIT flag and | |
1009 | * restart e2fsck. In the future it would be nice if | |
1010 | * we could call a function in pass1.c that checks the | |
1011 | * newly visible inodes. | |
49a7360b | 1012 | */ |
cd65a24e | 1013 | if (ext2fs_bg_flags_test(fs, group, EXT2_BG_INODE_UNINIT)) { |
6267ee49 | 1014 | pctx.num = dirent->inode; |
49a7360b JS |
1015 | if (fix_problem(ctx, PR_2_INOREF_BG_INO_UNINIT, |
1016 | &cd->pctx)){ | |
e633b58a | 1017 | ext2fs_bg_flags_clear(fs, group, |
732c8cd5 | 1018 | EXT2_BG_INODE_UNINIT); |
42e89ce7 | 1019 | ext2fs_mark_super_dirty(fs); |
6267ee49 | 1020 | ctx->flags |= E2F_FLAG_RESTART_LATER; |
49a7360b JS |
1021 | } else { |
1022 | ext2fs_unmark_valid(fs); | |
1023 | if (problem == PR_2_BAD_INO) | |
1024 | goto next; | |
1025 | } | |
1026 | } else if (dirent->inode >= first_unused_inode) { | |
6267ee49 | 1027 | pctx.num = dirent->inode; |
49a7360b | 1028 | if (fix_problem(ctx, PR_2_INOREF_IN_UNUSED, &cd->pctx)){ |
d7cca6b0 | 1029 | ext2fs_bg_itable_unused_set(fs, group, 0); |
49a7360b | 1030 | ext2fs_mark_super_dirty(fs); |
6267ee49 | 1031 | ctx->flags |= E2F_FLAG_RESTART_LATER; |
49a7360b JS |
1032 | } else { |
1033 | ext2fs_unmark_valid(fs); | |
1034 | if (problem == PR_2_BAD_INO) | |
1035 | goto next; | |
1036 | } | |
1037 | } | |
1038 | ||
0433c1f1 TT |
1039 | /* |
1040 | * Offer to clear unused inodes; if we are going to be | |
1041 | * restarting the scan due to bg_itable_unused being | |
1042 | * wrong, then don't clear any inodes to avoid zapping | |
1043 | * inodes that were skipped during pass1 due to an | |
1044 | * incorrect bg_itable_unused; we'll get any real | |
1045 | * problems after we restart. | |
1046 | */ | |
1047 | if (!(ctx->flags & E2F_FLAG_RESTART_LATER) && | |
97d26ce9 TT |
1048 | !(ext2fs_test_inode_bitmap2(ctx->inode_used_map, |
1049 | dirent->inode))) | |
49a7360b | 1050 | problem = PR_2_UNUSED_INODE; |
49a7360b JS |
1051 | |
1052 | if (problem) { | |
1053 | if (fix_problem(ctx, problem, &cd->pctx)) { | |
1054 | dirent->inode = 0; | |
1055 | dir_modified++; | |
1056 | goto next; | |
1057 | } else { | |
1058 | ext2fs_unmark_valid(fs); | |
1059 | if (problem == PR_2_BAD_INO) | |
1060 | goto next; | |
1061 | } | |
1062 | } | |
1063 | ||
1b6bf175 TT |
1064 | if (check_name(ctx, dirent, ino, &cd->pctx)) |
1065 | dir_modified++; | |
1066 | ||
aa4115a4 TT |
1067 | if (check_filetype(ctx, dirent, ino, &cd->pctx)) |
1068 | dir_modified++; | |
1069 | ||
8fdc9985 TT |
1070 | #ifdef ENABLE_HTREE |
1071 | if (dx_db) { | |
1072 | ext2fs_dirhash(dx_dir->hashversion, dirent->name, | |
503f9e7f TT |
1073 | (dirent->name_len & 0xFF), |
1074 | fs->super->s_hash_seed, &hash, 0); | |
8fdc9985 TT |
1075 | if (hash < dx_db->min_hash) |
1076 | dx_db->min_hash = hash; | |
1077 | if (hash > dx_db->max_hash) | |
1078 | dx_db->max_hash = hash; | |
1079 | } | |
1080 | #endif | |
1081 | ||
3839e657 TT |
1082 | /* |
1083 | * If this is a directory, then mark its parent in its | |
1084 | * dir_info structure. If the parent field is already | |
1085 | * filled in, then this directory has more than one | |
1086 | * hard link. We assume the first link is correct, | |
1087 | * and ask the user if he/she wants to clear this one. | |
1088 | */ | |
e70ae99e | 1089 | if ((dot_state > 1) && |
c5d2f50d | 1090 | (ext2fs_test_inode_bitmap2(ctx->inode_dir_map, |
3839e657 | 1091 | dirent->inode))) { |
28db82a8 TT |
1092 | if (e2fsck_dir_info_get_parent(ctx, dirent->inode, |
1093 | &subdir_parent)) { | |
1b6bf175 TT |
1094 | cd->pctx.ino = dirent->inode; |
1095 | fix_problem(ctx, PR_2_NO_DIRINFO, &cd->pctx); | |
0926668d | 1096 | goto abort_free_dict; |
3839e657 | 1097 | } |
28db82a8 TT |
1098 | if (subdir_parent) { |
1099 | cd->pctx.ino2 = subdir_parent; | |
1b6bf175 | 1100 | if (fix_problem(ctx, PR_2_LINK_DIR, |
21c84b71 | 1101 | &cd->pctx)) { |
3839e657 TT |
1102 | dirent->inode = 0; |
1103 | dir_modified++; | |
1104 | goto next; | |
21c84b71 TT |
1105 | } |
1106 | cd->pctx.ino2 = 0; | |
28db82a8 | 1107 | } else { |
efc6f628 | 1108 | (void) e2fsck_dir_info_set_parent(ctx, |
28db82a8 TT |
1109 | dirent->inode, ino); |
1110 | } | |
3839e657 | 1111 | } |
0926668d TT |
1112 | |
1113 | if (dups_found) { | |
1114 | ; | |
1115 | } else if (dict_lookup(&de_dict, dirent)) { | |
1116 | clear_problem_context(&pctx); | |
1117 | pctx.ino = ino; | |
1118 | pctx.dirent = dirent; | |
1119 | fix_problem(ctx, PR_2_REPORT_DUP_DIRENT, &pctx); | |
1120 | if (!ctx->dirs_to_hash) | |
1121 | ext2fs_u32_list_create(&ctx->dirs_to_hash, 50); | |
1122 | if (ctx->dirs_to_hash) | |
1123 | ext2fs_u32_list_add(ctx->dirs_to_hash, ino); | |
1124 | dups_found++; | |
1125 | } else | |
1126 | dict_alloc_insert(&de_dict, dirent, dirent); | |
efc6f628 | 1127 | |
1b6bf175 TT |
1128 | ext2fs_icount_increment(ctx->inode_count, dirent->inode, |
1129 | &links); | |
21c84b71 | 1130 | if (links > 1) |
1b6bf175 TT |
1131 | ctx->fs_links_count++; |
1132 | ctx->fs_total_count++; | |
3839e657 | 1133 | next: |
e70ae99e | 1134 | prev = dirent; |
5dd77dbe | 1135 | if (dir_modified) |
8a480350 | 1136 | (void) ext2fs_get_rec_len(fs, dirent, &rec_len); |
5dd77dbe | 1137 | offset += rec_len; |
e70ae99e | 1138 | dot_state++; |
3839e657 TT |
1139 | } while (offset < fs->blocksize); |
1140 | #if 0 | |
1141 | printf("\n"); | |
1142 | #endif | |
8fdc9985 TT |
1143 | #ifdef ENABLE_HTREE |
1144 | if (dx_db) { | |
1145 | #ifdef DX_DEBUG | |
1146 | printf("db_block %d, type %d, min_hash 0x%0x, max_hash 0x%0x\n", | |
1147 | db->blockcnt, dx_db->type, | |
1148 | dx_db->min_hash, dx_db->max_hash); | |
1149 | #endif | |
b7a00563 | 1150 | cd->pctx.dir = cd->pctx.ino; |
8fdc9985 TT |
1151 | if ((dx_db->type == DX_DIRBLOCK_ROOT) || |
1152 | (dx_db->type == DX_DIRBLOCK_NODE)) | |
81683c6a | 1153 | parse_int_node(fs, db, cd, dx_dir, buf, failed_csum); |
8fdc9985 TT |
1154 | } |
1155 | #endif /* ENABLE_HTREE */ | |
3839e657 | 1156 | if (offset != fs->blocksize) { |
5dd77dbe | 1157 | cd->pctx.num = rec_len - fs->blocksize + offset; |
1b6bf175 TT |
1158 | if (fix_problem(ctx, PR_2_FINAL_RECLEN, &cd->pctx)) { |
1159 | dirent->rec_len = cd->pctx.num; | |
1160 | dir_modified++; | |
1161 | } | |
3839e657 TT |
1162 | } |
1163 | if (dir_modified) { | |
81683c6a DW |
1164 | cd->pctx.errcode = ext2fs_write_dir_block4(fs, block_nr, buf, |
1165 | 0, ino); | |
1b6bf175 | 1166 | if (cd->pctx.errcode) { |
08b21301 | 1167 | if (!fix_problem(ctx, PR_2_WRITE_DIRBLOCK, |
0926668d TT |
1168 | &cd->pctx)) |
1169 | goto abort_free_dict; | |
3839e657 TT |
1170 | } |
1171 | ext2fs_mark_changed(fs); | |
1172 | } | |
0926668d | 1173 | dict_free_nodes(&de_dict); |
3839e657 | 1174 | return 0; |
0926668d | 1175 | abort_free_dict: |
0926668d | 1176 | ctx->flags |= E2F_FLAG_ABORT; |
49a7360b | 1177 | dict_free_nodes(&de_dict); |
0926668d | 1178 | return DIRENT_ABORT; |
3839e657 TT |
1179 | } |
1180 | ||
624e4a64 AK |
1181 | struct del_block { |
1182 | e2fsck_t ctx; | |
1183 | e2_blkcnt_t num; | |
1184 | }; | |
1185 | ||
3839e657 TT |
1186 | /* |
1187 | * This function is called to deallocate a block, and is an interator | |
1188 | * functioned called by deallocate inode via ext2fs_iterate_block(). | |
1189 | */ | |
1190 | static int deallocate_inode_block(ext2_filsys fs, | |
6dc64392 | 1191 | blk64_t *block_nr, |
54434927 | 1192 | e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), |
6dc64392 | 1193 | blk64_t ref_block EXT2FS_ATTR((unused)), |
54434927 | 1194 | int ref_offset EXT2FS_ATTR((unused)), |
133a56dc | 1195 | void *priv_data) |
3839e657 | 1196 | { |
624e4a64 | 1197 | struct del_block *p = priv_data; |
efc6f628 | 1198 | |
1917875f | 1199 | if (HOLE_BLKADDR(*block_nr)) |
3839e657 | 1200 | return 0; |
1ba7a2f2 | 1201 | if ((*block_nr < fs->super->s_first_data_block) || |
4efbac6f | 1202 | (*block_nr >= ext2fs_blocks_count(fs->super))) |
1ba7a2f2 | 1203 | return 0; |
624e4a64 | 1204 | ext2fs_unmark_block_bitmap2(p->ctx->block_found_map, *block_nr); |
48f23054 | 1205 | ext2fs_block_alloc_stats2(fs, *block_nr, -1); |
624e4a64 | 1206 | p->num++; |
3839e657 TT |
1207 | return 0; |
1208 | } | |
efc6f628 | 1209 | |
3839e657 TT |
1210 | /* |
1211 | * This fuction deallocates an inode | |
1212 | */ | |
4035f40b | 1213 | static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf) |
3839e657 | 1214 | { |
1b6bf175 | 1215 | ext2_filsys fs = ctx->fs; |
3839e657 | 1216 | struct ext2_inode inode; |
1b6bf175 | 1217 | struct problem_context pctx; |
0684a4f3 | 1218 | __u32 count; |
624e4a64 | 1219 | struct del_block del_block; |
efc6f628 | 1220 | |
08b21301 | 1221 | e2fsck_read_inode(ctx, ino, &inode, "deallocate_inode"); |
e3df15ab | 1222 | e2fsck_clear_inode(ctx, ino, &inode, 0, "deallocate_inode"); |
1b6bf175 TT |
1223 | clear_problem_context(&pctx); |
1224 | pctx.ino = ino; | |
f3db3566 | 1225 | |
3839e657 TT |
1226 | /* |
1227 | * Fix up the bitmaps... | |
1228 | */ | |
f8188fff | 1229 | e2fsck_read_bitmaps(ctx); |
0684a4f3 TT |
1230 | ext2fs_inode_alloc_stats2(fs, ino, -1, LINUX_S_ISDIR(inode.i_mode)); |
1231 | ||
0c80c44b | 1232 | if (ext2fs_file_acl_block(fs, &inode) && |
0684a4f3 | 1233 | (fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR)) { |
0c80c44b TT |
1234 | pctx.errcode = ext2fs_adjust_ea_refcount2(fs, |
1235 | ext2fs_file_acl_block(fs, &inode), | |
1236 | block_buf, -1, &count); | |
0684a4f3 TT |
1237 | if (pctx.errcode == EXT2_ET_BAD_EA_BLOCK_NUM) { |
1238 | pctx.errcode = 0; | |
1239 | count = 1; | |
1240 | } | |
1241 | if (pctx.errcode) { | |
0c80c44b | 1242 | pctx.blk = ext2fs_file_acl_block(fs, &inode); |
0684a4f3 TT |
1243 | fix_problem(ctx, PR_2_ADJ_EA_REFCOUNT, &pctx); |
1244 | ctx->flags |= E2F_FLAG_ABORT; | |
1245 | return; | |
1246 | } | |
1247 | if (count == 0) { | |
c5d2f50d | 1248 | ext2fs_unmark_block_bitmap2(ctx->block_found_map, |
0c80c44b | 1249 | ext2fs_file_acl_block(fs, &inode)); |
48f23054 | 1250 | ext2fs_block_alloc_stats2(fs, |
0c80c44b | 1251 | ext2fs_file_acl_block(fs, &inode), -1); |
0684a4f3 | 1252 | } |
0c80c44b | 1253 | ext2fs_file_acl_block_set(fs, &inode, 0); |
0684a4f3 | 1254 | } |
3839e657 | 1255 | |
0c80c44b | 1256 | if (!ext2fs_inode_has_valid_blocks2(fs, &inode)) |
3839e657 | 1257 | return; |
a4742691 | 1258 | |
0bd0e593 | 1259 | if (LINUX_S_ISREG(inode.i_mode) && EXT2_I_SIZE(&inode) >= 0x80000000UL) |
a4742691 TT |
1260 | ctx->large_files--; |
1261 | ||
624e4a64 AK |
1262 | del_block.ctx = ctx; |
1263 | del_block.num = 0; | |
6dc64392 | 1264 | pctx.errcode = ext2fs_block_iterate3(fs, ino, 0, block_buf, |
624e4a64 AK |
1265 | deallocate_inode_block, |
1266 | &del_block); | |
1b6bf175 TT |
1267 | if (pctx.errcode) { |
1268 | fix_problem(ctx, PR_2_DEALLOC_INODE, &pctx); | |
08b21301 TT |
1269 | ctx->flags |= E2F_FLAG_ABORT; |
1270 | return; | |
1b6bf175 | 1271 | } |
3839e657 TT |
1272 | } |
1273 | ||
8fdc9985 TT |
1274 | /* |
1275 | * This fuction clears the htree flag on an inode | |
1276 | */ | |
1277 | static void clear_htree(e2fsck_t ctx, ext2_ino_t ino) | |
1278 | { | |
1279 | struct ext2_inode inode; | |
efc6f628 | 1280 | |
8fdc9985 TT |
1281 | e2fsck_read_inode(ctx, ino, &inode, "clear_htree"); |
1282 | inode.i_flags = inode.i_flags & ~EXT2_INDEX_FL; | |
1283 | e2fsck_write_inode(ctx, ino, &inode, "clear_htree"); | |
b7a00563 TT |
1284 | if (ctx->dirs_to_hash) |
1285 | ext2fs_u32_list_add(ctx->dirs_to_hash, ino); | |
8fdc9985 TT |
1286 | } |
1287 | ||
1288 | ||
86c627ec | 1289 | extern int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir, |
bcf9c5d4 | 1290 | ext2_ino_t ino, char *buf) |
3839e657 | 1291 | { |
1b6bf175 | 1292 | ext2_filsys fs = ctx->fs; |
3839e657 | 1293 | struct ext2_inode inode; |
3839e657 | 1294 | int inode_modified = 0; |
6c313fd4 | 1295 | int not_fixed = 0; |
1e3472c5 | 1296 | unsigned char *frag, *fsize; |
21c84b71 | 1297 | struct problem_context pctx; |
08b21301 | 1298 | int problem = 0; |
3839e657 | 1299 | |
08b21301 | 1300 | e2fsck_read_inode(ctx, ino, &inode, "process_bad_inode"); |
21c84b71 TT |
1301 | |
1302 | clear_problem_context(&pctx); | |
1303 | pctx.ino = ino; | |
1304 | pctx.dir = dir; | |
1305 | pctx.inode = &inode; | |
1306 | ||
0c80c44b | 1307 | if (ext2fs_file_acl_block(fs, &inode) && |
f76344fb TT |
1308 | !(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR)) { |
1309 | if (fix_problem(ctx, PR_2_FILE_ACL_ZERO, &pctx)) { | |
0c80c44b | 1310 | ext2fs_file_acl_block_set(fs, &inode, 0); |
f76344fb TT |
1311 | inode_modified++; |
1312 | } else | |
1313 | not_fixed++; | |
1314 | } | |
6c313fd4 | 1315 | |
50e1e10f TT |
1316 | if (!LINUX_S_ISDIR(inode.i_mode) && !LINUX_S_ISREG(inode.i_mode) && |
1317 | !LINUX_S_ISCHR(inode.i_mode) && !LINUX_S_ISBLK(inode.i_mode) && | |
1318 | !LINUX_S_ISLNK(inode.i_mode) && !LINUX_S_ISFIFO(inode.i_mode) && | |
08b21301 TT |
1319 | !(LINUX_S_ISSOCK(inode.i_mode))) |
1320 | problem = PR_2_BAD_MODE; | |
fdbdea09 | 1321 | else if (LINUX_S_ISCHR(inode.i_mode) |
0684a4f3 | 1322 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
08b21301 | 1323 | problem = PR_2_BAD_CHAR_DEV; |
fdbdea09 | 1324 | else if (LINUX_S_ISBLK(inode.i_mode) |
0684a4f3 | 1325 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
08b21301 | 1326 | problem = PR_2_BAD_BLOCK_DEV; |
fdbdea09 | 1327 | else if (LINUX_S_ISFIFO(inode.i_mode) |
0684a4f3 | 1328 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
1dde43f0 | 1329 | problem = PR_2_BAD_FIFO; |
fdbdea09 | 1330 | else if (LINUX_S_ISSOCK(inode.i_mode) |
0684a4f3 | 1331 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
1dde43f0 | 1332 | problem = PR_2_BAD_SOCKET; |
fdbdea09 | 1333 | else if (LINUX_S_ISLNK(inode.i_mode) |
7cadc577 | 1334 | && !e2fsck_pass1_check_symlink(fs, ino, &inode, buf)) { |
bcf9c5d4 | 1335 | problem = PR_2_INVALID_SYMLINK; |
67052a8a | 1336 | } |
1dde43f0 | 1337 | |
08b21301 TT |
1338 | if (problem) { |
1339 | if (fix_problem(ctx, problem, &pctx)) { | |
1b6bf175 | 1340 | deallocate_inode(ctx, ino, 0); |
a02ce9df | 1341 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK) |
08b21301 | 1342 | return 0; |
7cf73dcd | 1343 | return 1; |
6c313fd4 TT |
1344 | } else |
1345 | not_fixed++; | |
08b21301 | 1346 | problem = 0; |
7cf73dcd | 1347 | } |
efc6f628 | 1348 | |
6c313fd4 TT |
1349 | if (inode.i_faddr) { |
1350 | if (fix_problem(ctx, PR_2_FADDR_ZERO, &pctx)) { | |
1351 | inode.i_faddr = 0; | |
1352 | inode_modified++; | |
1353 | } else | |
1354 | not_fixed++; | |
3839e657 | 1355 | } |
1e3472c5 TT |
1356 | |
1357 | switch (fs->super->s_creator_os) { | |
1e3472c5 TT |
1358 | case EXT2_OS_HURD: |
1359 | frag = &inode.osd2.hurd2.h_i_frag; | |
1360 | fsize = &inode.osd2.hurd2.h_i_fsize; | |
1361 | break; | |
1e3472c5 TT |
1362 | default: |
1363 | frag = fsize = 0; | |
1364 | } | |
21c84b71 TT |
1365 | if (frag && *frag) { |
1366 | pctx.num = *frag; | |
1b6bf175 | 1367 | if (fix_problem(ctx, PR_2_FRAG_ZERO, &pctx)) { |
21c84b71 TT |
1368 | *frag = 0; |
1369 | inode_modified++; | |
7e0282c5 TT |
1370 | } else |
1371 | not_fixed++; | |
21c84b71 TT |
1372 | pctx.num = 0; |
1373 | } | |
1374 | if (fsize && *fsize) { | |
1375 | pctx.num = *fsize; | |
1b6bf175 | 1376 | if (fix_problem(ctx, PR_2_FSIZE_ZERO, &pctx)) { |
21c84b71 TT |
1377 | *fsize = 0; |
1378 | inode_modified++; | |
6c313fd4 TT |
1379 | } else |
1380 | not_fixed++; | |
21c84b71 TT |
1381 | pctx.num = 0; |
1382 | } | |
1383 | ||
5d17119d | 1384 | if ((fs->super->s_creator_os == EXT2_OS_LINUX) && |
efc6f628 | 1385 | !(fs->super->s_feature_ro_compat & |
5d17119d TT |
1386 | EXT4_FEATURE_RO_COMPAT_HUGE_FILE) && |
1387 | (inode.osd2.linux2.l_i_blocks_hi != 0)) { | |
1388 | pctx.num = inode.osd2.linux2.l_i_blocks_hi; | |
1389 | if (fix_problem(ctx, PR_2_BLOCKS_HI_ZERO, &pctx)) { | |
1390 | inode.osd2.linux2.l_i_blocks_hi = 0; | |
1391 | inode_modified++; | |
1392 | } | |
1393 | } | |
1394 | ||
911ec626 TT |
1395 | if (!(fs->super->s_feature_incompat & |
1396 | EXT4_FEATURE_INCOMPAT_64BIT) && | |
1397 | inode.osd2.linux2.l_i_file_acl_high != 0) { | |
1398 | pctx.num = inode.osd2.linux2.l_i_file_acl_high; | |
1399 | if (fix_problem(ctx, PR_2_I_FILE_ACL_HI_ZERO, &pctx)) { | |
1400 | inode.osd2.linux2.l_i_file_acl_high = 0; | |
1401 | inode_modified++; | |
1402 | } else | |
1403 | not_fixed++; | |
1404 | } | |
1405 | ||
0c80c44b TT |
1406 | if (ext2fs_file_acl_block(fs, &inode) && |
1407 | ((ext2fs_file_acl_block(fs, &inode) < fs->super->s_first_data_block) || | |
1408 | (ext2fs_file_acl_block(fs, &inode) >= ext2fs_blocks_count(fs->super)))) { | |
6c313fd4 | 1409 | if (fix_problem(ctx, PR_2_FILE_ACL_BAD, &pctx)) { |
0c80c44b | 1410 | ext2fs_file_acl_block_set(fs, &inode, 0); |
6c313fd4 TT |
1411 | inode_modified++; |
1412 | } else | |
1413 | not_fixed++; | |
342d847d | 1414 | } |
21c84b71 | 1415 | if (inode.i_dir_acl && |
6c313fd4 TT |
1416 | LINUX_S_ISDIR(inode.i_mode)) { |
1417 | if (fix_problem(ctx, PR_2_DIR_ACL_ZERO, &pctx)) { | |
1418 | inode.i_dir_acl = 0; | |
1419 | inode_modified++; | |
1420 | } else | |
1421 | not_fixed++; | |
21c84b71 | 1422 | } |
6c313fd4 | 1423 | |
f3db3566 | 1424 | if (inode_modified) |
08b21301 | 1425 | e2fsck_write_inode(ctx, ino, &inode, "process_bad_inode"); |
f76344fb | 1426 | if (!not_fixed && ctx->inode_bad_map) |
c5d2f50d | 1427 | ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino); |
3839e657 TT |
1428 | return 0; |
1429 | } | |
1430 | ||
50e1e10f TT |
1431 | |
1432 | /* | |
1433 | * allocate_dir_block --- this function allocates a new directory | |
1434 | * block for a particular inode; this is done if a directory has | |
1435 | * a "hole" in it, or if a directory has a illegal block number | |
1436 | * that was zeroed out and now needs to be replaced. | |
1437 | */ | |
1b6bf175 | 1438 | static int allocate_dir_block(e2fsck_t ctx, |
6dc64392 | 1439 | struct ext2_db_entry2 *db, |
efc6f628 | 1440 | char *buf EXT2FS_ATTR((unused)), |
54434927 | 1441 | struct problem_context *pctx) |
50e1e10f | 1442 | { |
1b6bf175 | 1443 | ext2_filsys fs = ctx->fs; |
c5d2f50d | 1444 | blk64_t blk; |
50e1e10f TT |
1445 | char *block; |
1446 | struct ext2_inode inode; | |
50e1e10f | 1447 | |
1b6bf175 | 1448 | if (fix_problem(ctx, PR_2_DIRECTORY_HOLE, pctx) == 0) |
50e1e10f TT |
1449 | return 1; |
1450 | ||
1451 | /* | |
1452 | * Read the inode and block bitmaps in; we'll be messing with | |
1453 | * them. | |
1454 | */ | |
f8188fff | 1455 | e2fsck_read_bitmaps(ctx); |
efc6f628 | 1456 | |
50e1e10f TT |
1457 | /* |
1458 | * First, find a free block | |
1459 | */ | |
c5d2f50d | 1460 | pctx->errcode = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk); |
1b6bf175 TT |
1461 | if (pctx->errcode) { |
1462 | pctx->str = "ext2fs_new_block"; | |
1463 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
50e1e10f TT |
1464 | return 1; |
1465 | } | |
c5d2f50d VAH |
1466 | ext2fs_mark_block_bitmap2(ctx->block_found_map, blk); |
1467 | ext2fs_mark_block_bitmap2(fs->block_map, blk); | |
50e1e10f TT |
1468 | ext2fs_mark_bb_dirty(fs); |
1469 | ||
1470 | /* | |
1471 | * Now let's create the actual data block for the inode | |
1472 | */ | |
1473 | if (db->blockcnt) | |
1b6bf175 | 1474 | pctx->errcode = ext2fs_new_dir_block(fs, 0, 0, &block); |
50e1e10f | 1475 | else |
1b6bf175 TT |
1476 | pctx->errcode = ext2fs_new_dir_block(fs, db->ino, |
1477 | EXT2_ROOT_INO, &block); | |
50e1e10f | 1478 | |
1b6bf175 TT |
1479 | if (pctx->errcode) { |
1480 | pctx->str = "ext2fs_new_dir_block"; | |
1481 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
50e1e10f TT |
1482 | return 1; |
1483 | } | |
1484 | ||
81683c6a | 1485 | pctx->errcode = ext2fs_write_dir_block4(fs, blk, block, 0, db->ino); |
c4e3d3f3 | 1486 | ext2fs_free_mem(&block); |
1b6bf175 TT |
1487 | if (pctx->errcode) { |
1488 | pctx->str = "ext2fs_write_dir_block"; | |
1489 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
50e1e10f TT |
1490 | return 1; |
1491 | } | |
1492 | ||
1493 | /* | |
1494 | * Update the inode block count | |
1495 | */ | |
08b21301 | 1496 | e2fsck_read_inode(ctx, db->ino, &inode, "allocate_dir_block"); |
1ca1059f | 1497 | ext2fs_iblk_add_blocks(fs, &inode, 1); |
50e1e10f TT |
1498 | if (inode.i_size < (db->blockcnt+1) * fs->blocksize) |
1499 | inode.i_size = (db->blockcnt+1) * fs->blocksize; | |
08b21301 | 1500 | e2fsck_write_inode(ctx, db->ino, &inode, "allocate_dir_block"); |
50e1e10f TT |
1501 | |
1502 | /* | |
1503 | * Finally, update the block pointers for the inode | |
1504 | */ | |
1505 | db->blk = blk; | |
2d07b3ad TT |
1506 | pctx->errcode = ext2fs_bmap2(fs, db->ino, &inode, 0, BMAP_SET, |
1507 | db->blockcnt, 0, &blk); | |
1b6bf175 TT |
1508 | if (pctx->errcode) { |
1509 | pctx->str = "ext2fs_block_iterate"; | |
1510 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
50e1e10f TT |
1511 | return 1; |
1512 | } | |
1513 | ||
1514 | return 0; | |
1515 | } |