]>
Commit | Line | Data |
---|---|---|
3839e657 TT |
1 | /* |
2 | * pass2.c --- check directory structure | |
efc6f628 | 3 | * |
21c84b71 TT |
4 | * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o |
5 | * | |
6 | * %Begin-Header% | |
7 | * This file may be redistributed under the terms of the GNU Public | |
8 | * License. | |
9 | * %End-Header% | |
efc6f628 | 10 | * |
3839e657 TT |
11 | * Pass 2 of e2fsck iterates through all active directory inodes, and |
12 | * applies to following tests to each directory entry in the directory | |
13 | * blocks in the inodes: | |
14 | * | |
15 | * - The length of the directory entry (rec_len) should be at | |
16 | * least 8 bytes, and no more than the remaining space | |
17 | * left in the directory block. | |
18 | * - The length of the name in the directory entry (name_len) | |
efc6f628 | 19 | * should be less than (rec_len - 8). |
3839e657 TT |
20 | * - The inode number in the directory entry should be within |
21 | * legal bounds. | |
22 | * - The inode number should refer to a in-use inode. | |
23 | * - The first entry should be '.', and its inode should be | |
24 | * the inode of the directory. | |
25 | * - The second entry should be '..'. | |
26 | * | |
27 | * To minimize disk seek time, the directory blocks are processed in | |
28 | * sorted order of block numbers. | |
29 | * | |
30 | * Pass 2 also collects the following information: | |
31 | * - The inode numbers of the subdirectories for each directory. | |
32 | * | |
33 | * Pass 2 relies on the following information from previous passes: | |
34 | * - The directory information collected in pass 1. | |
35 | * - The inode_used_map bitmap | |
36 | * - The inode_bad_map bitmap | |
37 | * - The inode_dir_map bitmap | |
3839e657 TT |
38 | * |
39 | * Pass 2 frees the following data structures | |
40 | * - The inode_bad_map bitmap | |
aa4115a4 | 41 | * - The inode_reg_map bitmap |
3839e657 TT |
42 | */ |
43 | ||
b969b1b8 | 44 | #define _GNU_SOURCE 1 /* get strnlen() */ |
d1154eb4 | 45 | #include "config.h" |
48e6e813 TT |
46 | #include <string.h> |
47 | ||
3839e657 | 48 | #include "e2fsck.h" |
21c84b71 | 49 | #include "problem.h" |
3dca12fb | 50 | #include "support/dict.h" |
3839e657 | 51 | |
aa4115a4 TT |
52 | #ifdef NO_INLINE_FUNCS |
53 | #define _INLINE_ | |
54 | #else | |
55 | #define _INLINE_ inline | |
56 | #endif | |
57 | ||
ad4fa466 | 58 | /* #define DX_DEBUG */ |
8fdc9985 | 59 | |
3839e657 TT |
60 | /* |
61 | * Keeps track of how many times an inode is referenced. | |
62 | */ | |
4035f40b | 63 | static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf); |
a5abfe03 DW |
64 | static int check_dir_block2(ext2_filsys fs, |
65 | struct ext2_db_entry2 *dir_blocks_info, | |
66 | void *priv_data); | |
3839e657 | 67 | static int check_dir_block(ext2_filsys fs, |
6dc64392 | 68 | struct ext2_db_entry2 *dir_blocks_info, |
54dc7ca2 | 69 | void *priv_data); |
1b6bf175 | 70 | static int allocate_dir_block(e2fsck_t ctx, |
6dc64392 | 71 | struct ext2_db_entry2 *dir_blocks_info, |
21c84b71 | 72 | char *buf, struct problem_context *pctx); |
8fdc9985 | 73 | static void clear_htree(e2fsck_t ctx, ext2_ino_t ino); |
ad4fa466 TT |
74 | static int htree_depth(struct dx_dir_info *dx_dir, |
75 | struct dx_dirblock_info *dx_db); | |
ea1959f0 | 76 | static EXT2_QSORT_TYPE special_dir_block_cmp(const void *a, const void *b); |
3839e657 | 77 | |
21c84b71 TT |
78 | struct check_dir_struct { |
79 | char *buf; | |
80 | struct problem_context pctx; | |
f8188fff | 81 | int count, max; |
1b6bf175 | 82 | e2fsck_t ctx; |
a5abfe03 DW |
83 | unsigned long long list_offset; |
84 | unsigned long long ra_entries; | |
85 | unsigned long long next_ra_off; | |
efc6f628 | 86 | }; |
21c84b71 | 87 | |
08b21301 | 88 | void e2fsck_pass2(e2fsck_t ctx) |
3839e657 | 89 | { |
a4742691 TT |
90 | struct ext2_super_block *sb = ctx->fs->super; |
91 | struct problem_context pctx; | |
92 | ext2_filsys fs = ctx->fs; | |
93 | char *buf; | |
8bf191e8 | 94 | #ifdef RESOURCE_TRACK |
3839e657 | 95 | struct resource_track rtrack; |
8bf191e8 | 96 | #endif |
21c84b71 | 97 | struct check_dir_struct cd; |
8fdc9985 TT |
98 | struct dx_dir_info *dx_dir; |
99 | struct dx_dirblock_info *dx_db, *dx_parent; | |
830b44f4 | 100 | unsigned int save_type; |
54434927 | 101 | int b; |
ad4fa466 | 102 | int i, depth; |
8fdc9985 TT |
103 | problem_t code; |
104 | int bad_dir; | |
a5abfe03 DW |
105 | int (*check_dir_func)(ext2_filsys fs, |
106 | struct ext2_db_entry2 *dir_blocks_info, | |
107 | void *priv_data); | |
8fdc9985 | 108 | |
6d96b00d | 109 | init_resource_track(&rtrack, ctx->fs->io); |
1b6bf175 TT |
110 | clear_problem_context(&cd.pctx); |
111 | ||
3839e657 TT |
112 | #ifdef MTRACE |
113 | mtrace_print("Pass 2"); | |
114 | #endif | |
115 | ||
1b6bf175 TT |
116 | if (!(ctx->options & E2F_OPT_PREEN)) |
117 | fix_problem(ctx, PR_2_PASS_HEADER, &cd.pctx); | |
118 | ||
efc6f628 | 119 | e2fsck_setup_tdb_icount(ctx, EXT2_ICOUNT_OPT_INCREMENT, |
34b9f796 TT |
120 | &ctx->inode_count); |
121 | if (ctx->inode_count) | |
122 | cd.pctx.errcode = 0; | |
830b44f4 TT |
123 | else { |
124 | e2fsck_set_bitmap_type(fs, EXT2FS_BMAP64_RBTREE, | |
125 | "inode_count", &save_type); | |
efc6f628 | 126 | cd.pctx.errcode = ext2fs_create_icount2(fs, |
34b9f796 | 127 | EXT2_ICOUNT_OPT_INCREMENT, |
1b6bf175 TT |
128 | 0, ctx->inode_link_info, |
129 | &ctx->inode_count); | |
830b44f4 TT |
130 | fs->default_bitmap_type = save_type; |
131 | } | |
1b6bf175 TT |
132 | if (cd.pctx.errcode) { |
133 | fix_problem(ctx, PR_2_ALLOCATE_ICOUNT, &cd.pctx); | |
08b21301 TT |
134 | ctx->flags |= E2F_FLAG_ABORT; |
135 | return; | |
21c84b71 | 136 | } |
bcf9c5d4 | 137 | buf = (char *) e2fsck_allocate_memory(ctx, 2*fs->blocksize, |
54dc7ca2 | 138 | "directory scan buffer"); |
3839e657 | 139 | |
21c84b71 TT |
140 | /* |
141 | * Set up the parent pointer for the root directory, if | |
142 | * present. (If the root directory is not present, we will | |
143 | * create it in pass 3.) | |
144 | */ | |
28db82a8 | 145 | (void) e2fsck_dir_info_set_parent(ctx, EXT2_ROOT_INO, EXT2_ROOT_INO); |
21c84b71 TT |
146 | |
147 | cd.buf = buf; | |
1b6bf175 | 148 | cd.ctx = ctx; |
f75c28de | 149 | cd.count = 1; |
6dc64392 | 150 | cd.max = ext2fs_dblist_count2(fs->dblist); |
a5abfe03 DW |
151 | cd.list_offset = 0; |
152 | cd.ra_entries = ctx->readahead_kb * 1024 / ctx->fs->blocksize; | |
153 | cd.next_ra_off = 0; | |
f75c28de TT |
154 | |
155 | if (ctx->progress) | |
156 | (void) (ctx->progress)(ctx, 2, 0, cd.max); | |
ea1959f0 TT |
157 | |
158 | if (fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) | |
6dc64392 | 159 | ext2fs_dblist_sort2(fs->dblist, special_dir_block_cmp); |
efc6f628 | 160 | |
a5abfe03 DW |
161 | check_dir_func = cd.ra_entries ? check_dir_block2 : check_dir_block; |
162 | cd.pctx.errcode = ext2fs_dblist_iterate2(fs->dblist, check_dir_func, | |
6dc64392 | 163 | &cd); |
49a7360b | 164 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK || ctx->flags & E2F_FLAG_RESTART) |
08b21301 | 165 | return; |
6267ee49 AD |
166 | |
167 | if (ctx->flags & E2F_FLAG_RESTART_LATER) { | |
168 | ctx->flags |= E2F_FLAG_RESTART; | |
169 | return; | |
170 | } | |
171 | ||
1b6bf175 TT |
172 | if (cd.pctx.errcode) { |
173 | fix_problem(ctx, PR_2_DBLIST_ITERATE, &cd.pctx); | |
08b21301 TT |
174 | ctx->flags |= E2F_FLAG_ABORT; |
175 | return; | |
7ac02a5e | 176 | } |
8fdc9985 | 177 | |
8fdc9985 | 178 | for (i=0; (dx_dir = e2fsck_dx_dir_info_iter(ctx, &i)) != 0;) { |
4cae0452 TT |
179 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK) |
180 | return; | |
d02d0195 DW |
181 | if (e2fsck_dir_will_be_rehashed(ctx, dx_dir->ino) || |
182 | dx_dir->numblocks == 0) | |
8fdc9985 TT |
183 | continue; |
184 | clear_problem_context(&pctx); | |
185 | bad_dir = 0; | |
186 | pctx.dir = dx_dir->ino; | |
187 | dx_db = dx_dir->dx_block; | |
188 | if (dx_db->flags & DX_FLAG_REFERENCED) | |
189 | dx_db->flags |= DX_FLAG_DUP_REF; | |
190 | else | |
191 | dx_db->flags |= DX_FLAG_REFERENCED; | |
192 | /* | |
193 | * Find all of the first and last leaf blocks, and | |
194 | * update their parent's min and max hash values | |
195 | */ | |
196 | for (b=0, dx_db = dx_dir->dx_block; | |
197 | b < dx_dir->numblocks; | |
198 | b++, dx_db++) { | |
199 | if ((dx_db->type != DX_DIRBLOCK_LEAF) || | |
200 | !(dx_db->flags & (DX_FLAG_FIRST | DX_FLAG_LAST))) | |
201 | continue; | |
202 | dx_parent = &dx_dir->dx_block[dx_db->parent]; | |
203 | /* | |
204 | * XXX Make sure dx_parent->min_hash > dx_db->min_hash | |
205 | */ | |
206 | if (dx_db->flags & DX_FLAG_FIRST) | |
207 | dx_parent->min_hash = dx_db->min_hash; | |
208 | /* | |
209 | * XXX Make sure dx_parent->max_hash < dx_db->max_hash | |
210 | */ | |
211 | if (dx_db->flags & DX_FLAG_LAST) | |
212 | dx_parent->max_hash = dx_db->max_hash; | |
213 | } | |
efc6f628 | 214 | |
8fdc9985 TT |
215 | for (b=0, dx_db = dx_dir->dx_block; |
216 | b < dx_dir->numblocks; | |
217 | b++, dx_db++) { | |
218 | pctx.blkcount = b; | |
219 | pctx.group = dx_db->parent; | |
220 | code = 0; | |
221 | if (!(dx_db->flags & DX_FLAG_FIRST) && | |
222 | (dx_db->min_hash < dx_db->node_min_hash)) { | |
223 | pctx.blk = dx_db->min_hash; | |
224 | pctx.blk2 = dx_db->node_min_hash; | |
225 | code = PR_2_HTREE_MIN_HASH; | |
226 | fix_problem(ctx, code, &pctx); | |
227 | bad_dir++; | |
228 | } | |
ad4fa466 TT |
229 | if (dx_db->type == DX_DIRBLOCK_LEAF) { |
230 | depth = htree_depth(dx_dir, dx_db); | |
231 | if (depth != dx_dir->depth) { | |
e5e12db9 | 232 | pctx.num = dx_dir->depth; |
ad4fa466 TT |
233 | code = PR_2_HTREE_BAD_DEPTH; |
234 | fix_problem(ctx, code, &pctx); | |
235 | bad_dir++; | |
236 | } | |
237 | } | |
8fdc9985 | 238 | /* |
efc6f628 | 239 | * This test doesn't apply for the root block |
8fdc9985 TT |
240 | * at block #0 |
241 | */ | |
242 | if (b && | |
243 | (dx_db->max_hash > dx_db->node_max_hash)) { | |
244 | pctx.blk = dx_db->max_hash; | |
245 | pctx.blk2 = dx_db->node_max_hash; | |
246 | code = PR_2_HTREE_MAX_HASH; | |
247 | fix_problem(ctx, code, &pctx); | |
503f9e7f | 248 | bad_dir++; |
8fdc9985 TT |
249 | } |
250 | if (!(dx_db->flags & DX_FLAG_REFERENCED)) { | |
251 | code = PR_2_HTREE_NOTREF; | |
252 | fix_problem(ctx, code, &pctx); | |
253 | bad_dir++; | |
254 | } else if (dx_db->flags & DX_FLAG_DUP_REF) { | |
255 | code = PR_2_HTREE_DUPREF; | |
256 | fix_problem(ctx, code, &pctx); | |
257 | bad_dir++; | |
258 | } | |
8fdc9985 TT |
259 | } |
260 | if (bad_dir && fix_problem(ctx, PR_2_HTREE_CLEAR, &pctx)) { | |
261 | clear_htree(ctx, dx_dir->ino); | |
62acaa1d | 262 | dx_dir->numblocks = 0; |
8fdc9985 | 263 | } |
8fdc9985 | 264 | } |
23f75f6e | 265 | e2fsck_free_dx_dir_info(ctx); |
149640fa | 266 | |
c4e3d3f3 | 267 | ext2fs_free_mem(&buf); |
21c84b71 TT |
268 | ext2fs_free_dblist(fs->dblist); |
269 | ||
1b6bf175 TT |
270 | if (ctx->inode_bad_map) { |
271 | ext2fs_free_inode_bitmap(ctx->inode_bad_map); | |
272 | ctx->inode_bad_map = 0; | |
3839e657 | 273 | } |
aa4115a4 TT |
274 | if (ctx->inode_reg_map) { |
275 | ext2fs_free_inode_bitmap(ctx->inode_reg_map); | |
276 | ctx->inode_reg_map = 0; | |
277 | } | |
dbff534e TT |
278 | if (ctx->encrypted_dirs) { |
279 | ext2fs_u32_list_free(ctx->encrypted_dirs); | |
280 | ctx->encrypted_dirs = 0; | |
281 | } | |
a4742691 TT |
282 | |
283 | clear_problem_context(&pctx); | |
284 | if (ctx->large_files) { | |
285 | if (!(sb->s_feature_ro_compat & | |
286 | EXT2_FEATURE_RO_COMPAT_LARGE_FILE) && | |
287 | fix_problem(ctx, PR_2_FEATURE_LARGE_FILES, &pctx)) { | |
288 | sb->s_feature_ro_compat |= | |
289 | EXT2_FEATURE_RO_COMPAT_LARGE_FILE; | |
0cfce7f7 | 290 | fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; |
a4742691 TT |
291 | ext2fs_mark_super_dirty(fs); |
292 | } | |
293 | if (sb->s_rev_level == EXT2_GOOD_OLD_REV && | |
294 | fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) { | |
295 | ext2fs_update_dynamic_rev(fs); | |
296 | ext2fs_mark_super_dirty(fs); | |
297 | } | |
a4742691 | 298 | } |
efc6f628 | 299 | |
9facd076 | 300 | print_resource_track(ctx, _("Pass 2"), &rtrack, fs->io); |
3839e657 TT |
301 | } |
302 | ||
ad4fa466 TT |
303 | #define MAX_DEPTH 32000 |
304 | static int htree_depth(struct dx_dir_info *dx_dir, | |
305 | struct dx_dirblock_info *dx_db) | |
306 | { | |
307 | int depth = 0; | |
308 | ||
309 | while (dx_db->type != DX_DIRBLOCK_ROOT && depth < MAX_DEPTH) { | |
310 | dx_db = &dx_dir->dx_block[dx_db->parent]; | |
311 | depth++; | |
312 | } | |
313 | return depth; | |
314 | } | |
315 | ||
0926668d TT |
316 | static int dict_de_cmp(const void *a, const void *b) |
317 | { | |
520ead37 | 318 | const struct ext2_dir_entry *de_a, *de_b; |
0926668d TT |
319 | int a_len, b_len; |
320 | ||
520ead37 | 321 | de_a = (const struct ext2_dir_entry *) a; |
70f4632b | 322 | a_len = ext2fs_dirent_name_len(de_a); |
520ead37 | 323 | de_b = (const struct ext2_dir_entry *) b; |
70f4632b | 324 | b_len = ext2fs_dirent_name_len(de_b); |
0926668d TT |
325 | |
326 | if (a_len != b_len) | |
327 | return (a_len - b_len); | |
328 | ||
baa14bd1 | 329 | return memcmp(de_a->name, de_b->name, a_len); |
0926668d | 330 | } |
ad4fa466 | 331 | |
ea1959f0 TT |
332 | /* |
333 | * This is special sort function that makes sure that directory blocks | |
334 | * with a dirblock of zero are sorted to the beginning of the list. | |
335 | * This guarantees that the root node of the htree directories are | |
336 | * processed first, so we know what hash version to use. | |
337 | */ | |
338 | static EXT2_QSORT_TYPE special_dir_block_cmp(const void *a, const void *b) | |
339 | { | |
6dc64392 VAH |
340 | const struct ext2_db_entry2 *db_a = |
341 | (const struct ext2_db_entry2 *) a; | |
342 | const struct ext2_db_entry2 *db_b = | |
343 | (const struct ext2_db_entry2 *) b; | |
ea1959f0 TT |
344 | |
345 | if (db_a->blockcnt && !db_b->blockcnt) | |
346 | return 1; | |
347 | ||
348 | if (!db_a->blockcnt && db_b->blockcnt) | |
349 | return -1; | |
efc6f628 | 350 | |
ea1959f0 TT |
351 | if (db_a->blk != db_b->blk) |
352 | return (int) (db_a->blk - db_b->blk); | |
efc6f628 | 353 | |
ea1959f0 TT |
354 | if (db_a->ino != db_b->ino) |
355 | return (int) (db_a->ino - db_b->ino); | |
356 | ||
357 | return (int) (db_a->blockcnt - db_b->blockcnt); | |
358 | } | |
359 | ||
360 | ||
3839e657 TT |
361 | /* |
362 | * Make sure the first entry in the directory is '.', and that the | |
363 | * directory entry is sane. | |
364 | */ | |
1b6bf175 | 365 | static int check_dot(e2fsck_t ctx, |
3839e657 | 366 | struct ext2_dir_entry *dirent, |
86c627ec | 367 | ext2_ino_t ino, struct problem_context *pctx) |
3839e657 TT |
368 | { |
369 | struct ext2_dir_entry *nextdir; | |
8a480350 | 370 | unsigned int rec_len, new_len; |
3c7c6d73 TT |
371 | int status = 0; |
372 | int created = 0; | |
373 | problem_t problem = 0; | |
efc6f628 | 374 | |
21c84b71 TT |
375 | if (!dirent->inode) |
376 | problem = PR_2_MISSING_DOT; | |
70f4632b | 377 | else if ((ext2fs_dirent_name_len(dirent) != 1) || |
21c84b71 TT |
378 | (dirent->name[0] != '.')) |
379 | problem = PR_2_1ST_NOT_DOT; | |
380 | else if (dirent->name[1] != '\0') | |
381 | problem = PR_2_DOT_NULL_TERM; | |
5dd77dbe | 382 | |
8a480350 | 383 | (void) ext2fs_get_rec_len(ctx->fs, dirent, &rec_len); |
21c84b71 | 384 | if (problem) { |
1b6bf175 | 385 | if (fix_problem(ctx, problem, pctx)) { |
5dd77dbe TT |
386 | if (rec_len < 12) |
387 | rec_len = dirent->rec_len = 12; | |
3839e657 | 388 | dirent->inode = ino; |
70f4632b JK |
389 | ext2fs_dirent_set_name_len(dirent, 1); |
390 | ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN); | |
3839e657 | 391 | dirent->name[0] = '.'; |
21c84b71 | 392 | dirent->name[1] = '\0'; |
3839e657 TT |
393 | status = 1; |
394 | created = 1; | |
3839e657 TT |
395 | } |
396 | } | |
3839e657 | 397 | if (dirent->inode != ino) { |
1b6bf175 | 398 | if (fix_problem(ctx, PR_2_BAD_INODE_DOT, pctx)) { |
3839e657 TT |
399 | dirent->inode = ino; |
400 | status = 1; | |
21c84b71 | 401 | } |
3839e657 | 402 | } |
5dd77dbe TT |
403 | if (rec_len > 12) { |
404 | new_len = rec_len - 12; | |
3839e657 | 405 | if (new_len > 12) { |
3839e657 | 406 | if (created || |
f8188fff | 407 | fix_problem(ctx, PR_2_SPLIT_DOT, pctx)) { |
3839e657 TT |
408 | nextdir = (struct ext2_dir_entry *) |
409 | ((char *) dirent + 12); | |
410 | dirent->rec_len = 12; | |
8a480350 TT |
411 | (void) ext2fs_set_rec_len(ctx->fs, new_len, |
412 | nextdir); | |
3839e657 | 413 | nextdir->inode = 0; |
70f4632b JK |
414 | ext2fs_dirent_set_name_len(nextdir, 0); |
415 | ext2fs_dirent_set_file_type(nextdir, | |
416 | EXT2_FT_UNKNOWN); | |
3839e657 TT |
417 | status = 1; |
418 | } | |
419 | } | |
420 | } | |
421 | return status; | |
422 | } | |
423 | ||
424 | /* | |
425 | * Make sure the second entry in the directory is '..', and that the | |
426 | * directory entry is sane. We do not check the inode number of '..' | |
427 | * here; this gets done in pass 3. | |
428 | */ | |
1b6bf175 | 429 | static int check_dotdot(e2fsck_t ctx, |
3839e657 | 430 | struct ext2_dir_entry *dirent, |
28db82a8 | 431 | ext2_ino_t ino, struct problem_context *pctx) |
3839e657 | 432 | { |
3c7c6d73 | 433 | problem_t problem = 0; |
cf5301d7 | 434 | unsigned int rec_len; |
efc6f628 | 435 | |
21c84b71 TT |
436 | if (!dirent->inode) |
437 | problem = PR_2_MISSING_DOT_DOT; | |
70f4632b | 438 | else if ((ext2fs_dirent_name_len(dirent) != 2) || |
21c84b71 TT |
439 | (dirent->name[0] != '.') || |
440 | (dirent->name[1] != '.')) | |
441 | problem = PR_2_2ND_NOT_DOT_DOT; | |
442 | else if (dirent->name[2] != '\0') | |
443 | problem = PR_2_DOT_DOT_NULL_TERM; | |
444 | ||
8a480350 | 445 | (void) ext2fs_get_rec_len(ctx->fs, dirent, &rec_len); |
21c84b71 | 446 | if (problem) { |
1b6bf175 | 447 | if (fix_problem(ctx, problem, pctx)) { |
5dd77dbe | 448 | if (rec_len < 12) |
21c84b71 | 449 | dirent->rec_len = 12; |
3839e657 TT |
450 | /* |
451 | * Note: we don't have the parent inode just | |
452 | * yet, so we will fill it in with the root | |
453 | * inode. This will get fixed in pass 3. | |
454 | */ | |
455 | dirent->inode = EXT2_ROOT_INO; | |
70f4632b JK |
456 | ext2fs_dirent_set_name_len(dirent, 2); |
457 | ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN); | |
3839e657 TT |
458 | dirent->name[0] = '.'; |
459 | dirent->name[1] = '.'; | |
21c84b71 | 460 | dirent->name[2] = '\0'; |
3839e657 | 461 | return 1; |
efc6f628 | 462 | } |
3839e657 TT |
463 | return 0; |
464 | } | |
28db82a8 TT |
465 | if (e2fsck_dir_info_set_dotdot(ctx, ino, dirent->inode)) { |
466 | fix_problem(ctx, PR_2_NO_DIRINFO, pctx); | |
467 | return -1; | |
468 | } | |
3839e657 TT |
469 | return 0; |
470 | } | |
471 | ||
472 | /* | |
473 | * Check to make sure a directory entry doesn't contain any illegal | |
474 | * characters. | |
475 | */ | |
1b6bf175 | 476 | static int check_name(e2fsck_t ctx, |
3839e657 | 477 | struct ext2_dir_entry *dirent, |
54434927 | 478 | struct problem_context *pctx) |
3839e657 TT |
479 | { |
480 | int i; | |
481 | int fixup = -1; | |
3839e657 | 482 | int ret = 0; |
efc6f628 | 483 | |
70f4632b | 484 | for ( i = 0; i < ext2fs_dirent_name_len(dirent); i++) { |
dbff534e TT |
485 | if (dirent->name[i] != '/' && dirent->name[i] != '\0') |
486 | continue; | |
dbff534e TT |
487 | if (fixup < 0) |
488 | fixup = fix_problem(ctx, PR_2_BAD_NAME, pctx); | |
489 | if (fixup == 0) | |
490 | return 0; | |
491 | dirent->name[i] = '.'; | |
492 | ret = 1; | |
3839e657 TT |
493 | } |
494 | return ret; | |
495 | } | |
496 | ||
aa4115a4 TT |
497 | /* |
498 | * Check the directory filetype (if present) | |
499 | */ | |
500 | static _INLINE_ int check_filetype(e2fsck_t ctx, | |
54434927 TT |
501 | struct ext2_dir_entry *dirent, |
502 | ext2_ino_t dir_ino EXT2FS_ATTR((unused)), | |
503 | struct problem_context *pctx) | |
aa4115a4 | 504 | { |
70f4632b | 505 | int filetype = ext2fs_dirent_file_type(dirent); |
aa4115a4 TT |
506 | int should_be = EXT2_FT_UNKNOWN; |
507 | struct ext2_inode inode; | |
508 | ||
509 | if (!(ctx->fs->super->s_feature_incompat & | |
7847c1d4 TT |
510 | EXT2_FEATURE_INCOMPAT_FILETYPE)) { |
511 | if (filetype == 0 || | |
512 | !fix_problem(ctx, PR_2_CLEAR_FILETYPE, pctx)) | |
513 | return 0; | |
70f4632b | 514 | ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN); |
7847c1d4 TT |
515 | return 1; |
516 | } | |
aa4115a4 | 517 | |
c5d2f50d | 518 | if (ext2fs_test_inode_bitmap2(ctx->inode_dir_map, dirent->inode)) { |
aa4115a4 | 519 | should_be = EXT2_FT_DIR; |
c5d2f50d | 520 | } else if (ext2fs_test_inode_bitmap2(ctx->inode_reg_map, |
aa4115a4 TT |
521 | dirent->inode)) { |
522 | should_be = EXT2_FT_REG_FILE; | |
523 | } else if (ctx->inode_bad_map && | |
c5d2f50d | 524 | ext2fs_test_inode_bitmap2(ctx->inode_bad_map, |
aa4115a4 TT |
525 | dirent->inode)) |
526 | should_be = 0; | |
527 | else { | |
528 | e2fsck_read_inode(ctx, dirent->inode, &inode, | |
529 | "check_filetype"); | |
6fdc7a32 | 530 | should_be = ext2_file_type(inode.i_mode); |
aa4115a4 TT |
531 | } |
532 | if (filetype == should_be) | |
533 | return 0; | |
534 | pctx->num = should_be; | |
535 | ||
536 | if (fix_problem(ctx, filetype ? PR_2_BAD_FILETYPE : PR_2_SET_FILETYPE, | |
537 | pctx) == 0) | |
538 | return 0; | |
efc6f628 | 539 | |
70f4632b | 540 | ext2fs_dirent_set_file_type(dirent, should_be); |
aa4115a4 TT |
541 | return 1; |
542 | } | |
543 | ||
8fdc9985 | 544 | static void parse_int_node(ext2_filsys fs, |
6dc64392 | 545 | struct ext2_db_entry2 *db, |
8fdc9985 TT |
546 | struct check_dir_struct *cd, |
547 | struct dx_dir_info *dx_dir, | |
07307114 | 548 | char *block_buf, int failed_csum) |
8fdc9985 TT |
549 | { |
550 | struct ext2_dx_root_info *root; | |
551 | struct ext2_dx_entry *ent; | |
552 | struct ext2_dx_countlimit *limit; | |
553 | struct dx_dirblock_info *dx_db; | |
ad4fa466 | 554 | int i, expect_limit, count; |
8fdc9985 TT |
555 | blk_t blk; |
556 | ext2_dirhash_t min_hash = 0xffffffff; | |
557 | ext2_dirhash_t max_hash = 0; | |
ad4fa466 | 558 | ext2_dirhash_t hash = 0, prev_hash; |
07307114 | 559 | int csum_size = 0; |
8fdc9985 TT |
560 | |
561 | if (db->blockcnt == 0) { | |
562 | root = (struct ext2_dx_root_info *) (block_buf + 24); | |
efc6f628 | 563 | |
8fdc9985 TT |
564 | #ifdef DX_DEBUG |
565 | printf("Root node dump:\n"); | |
8deb80a5 | 566 | printf("\t Reserved zero: %u\n", root->reserved_zero); |
8fdc9985 TT |
567 | printf("\t Hash Version: %d\n", root->hash_version); |
568 | printf("\t Info length: %d\n", root->info_length); | |
569 | printf("\t Indirect levels: %d\n", root->indirect_levels); | |
570 | printf("\t Flags: %d\n", root->unused_flags); | |
571 | #endif | |
572 | ||
573 | ent = (struct ext2_dx_entry *) (block_buf + 24 + root->info_length); | |
07307114 DW |
574 | |
575 | if (failed_csum && | |
576 | (e2fsck_dir_will_be_rehashed(cd->ctx, cd->pctx.ino) || | |
577 | fix_problem(cd->ctx, PR_2_HTREE_ROOT_CSUM_INVALID, | |
578 | &cd->pctx))) | |
579 | goto clear_and_exit; | |
8fdc9985 TT |
580 | } else { |
581 | ent = (struct ext2_dx_entry *) (block_buf+8); | |
07307114 DW |
582 | |
583 | if (failed_csum && | |
584 | (e2fsck_dir_will_be_rehashed(cd->ctx, cd->pctx.ino) || | |
585 | fix_problem(cd->ctx, PR_2_HTREE_NODE_CSUM_INVALID, | |
586 | &cd->pctx))) | |
587 | goto clear_and_exit; | |
8fdc9985 | 588 | } |
07307114 | 589 | |
8fdc9985 TT |
590 | limit = (struct ext2_dx_countlimit *) ent; |
591 | ||
592 | #ifdef DX_DEBUG | |
efc6f628 | 593 | printf("Number of entries (count): %d\n", |
8132d840 | 594 | ext2fs_le16_to_cpu(limit->count)); |
efc6f628 | 595 | printf("Number of entries (limit): %d\n", |
8132d840 | 596 | ext2fs_le16_to_cpu(limit->limit)); |
8fdc9985 TT |
597 | #endif |
598 | ||
8132d840 | 599 | count = ext2fs_le16_to_cpu(limit->count); |
07307114 DW |
600 | if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super, |
601 | EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) | |
602 | csum_size = sizeof(struct ext2_dx_tail); | |
603 | expect_limit = (fs->blocksize - | |
604 | (csum_size + ((char *) ent - block_buf))) / | |
605 | sizeof(struct ext2_dx_entry); | |
8132d840 TT |
606 | if (ext2fs_le16_to_cpu(limit->limit) != expect_limit) { |
607 | cd->pctx.num = ext2fs_le16_to_cpu(limit->limit); | |
ad4fa466 TT |
608 | if (fix_problem(cd->ctx, PR_2_HTREE_BAD_LIMIT, &cd->pctx)) |
609 | goto clear_and_exit; | |
610 | } | |
8132d840 TT |
611 | if (count > expect_limit) { |
612 | cd->pctx.num = count; | |
ad4fa466 TT |
613 | if (fix_problem(cd->ctx, PR_2_HTREE_BAD_COUNT, &cd->pctx)) |
614 | goto clear_and_exit; | |
615 | count = expect_limit; | |
616 | } | |
efc6f628 | 617 | |
ad4fa466 TT |
618 | for (i=0; i < count; i++) { |
619 | prev_hash = hash; | |
8132d840 | 620 | hash = i ? (ext2fs_le32_to_cpu(ent[i].hash) & ~1) : 0; |
8fdc9985 | 621 | #ifdef DX_DEBUG |
8deb80a5 | 622 | printf("Entry #%d: Hash 0x%08x, block %u\n", i, |
8132d840 | 623 | hash, ext2fs_le32_to_cpu(ent[i].block)); |
8fdc9985 | 624 | #endif |
8132d840 | 625 | blk = ext2fs_le32_to_cpu(ent[i].block) & 0x0ffffff; |
8fdc9985 | 626 | /* Check to make sure the block is valid */ |
977ac873 | 627 | if (blk >= (blk_t) dx_dir->numblocks) { |
b7a00563 | 628 | cd->pctx.blk = blk; |
8fdc9985 | 629 | if (fix_problem(cd->ctx, PR_2_HTREE_BADBLK, |
ad4fa466 TT |
630 | &cd->pctx)) |
631 | goto clear_and_exit; | |
977ac873 | 632 | continue; |
8fdc9985 | 633 | } |
ad4fa466 TT |
634 | if (hash < prev_hash && |
635 | fix_problem(cd->ctx, PR_2_HTREE_HASH_ORDER, &cd->pctx)) | |
636 | goto clear_and_exit; | |
8fdc9985 TT |
637 | dx_db = &dx_dir->dx_block[blk]; |
638 | if (dx_db->flags & DX_FLAG_REFERENCED) { | |
639 | dx_db->flags |= DX_FLAG_DUP_REF; | |
640 | } else { | |
641 | dx_db->flags |= DX_FLAG_REFERENCED; | |
642 | dx_db->parent = db->blockcnt; | |
643 | } | |
644 | if (hash < min_hash) | |
645 | min_hash = hash; | |
646 | if (hash > max_hash) | |
647 | max_hash = hash; | |
648 | dx_db->node_min_hash = hash; | |
8132d840 | 649 | if ((i+1) < count) |
efc6f628 | 650 | dx_db->node_max_hash = |
8132d840 | 651 | ext2fs_le32_to_cpu(ent[i+1].hash) & ~1; |
8fdc9985 TT |
652 | else { |
653 | dx_db->node_max_hash = 0xfffffffe; | |
654 | dx_db->flags |= DX_FLAG_LAST; | |
655 | } | |
656 | if (i == 0) | |
657 | dx_db->flags |= DX_FLAG_FIRST; | |
658 | } | |
659 | #ifdef DX_DEBUG | |
660 | printf("Blockcnt = %d, min hash 0x%08x, max hash 0x%08x\n", | |
661 | db->blockcnt, min_hash, max_hash); | |
662 | #endif | |
663 | dx_db = &dx_dir->dx_block[db->blockcnt]; | |
664 | dx_db->min_hash = min_hash; | |
665 | dx_db->max_hash = max_hash; | |
ad4fa466 TT |
666 | return; |
667 | ||
668 | clear_and_exit: | |
669 | clear_htree(cd->ctx, cd->pctx.ino); | |
670 | dx_dir->numblocks = 0; | |
07307114 | 671 | e2fsck_rehash_dir_later(cd->ctx, cd->pctx.ino); |
8fdc9985 | 672 | } |
aa4115a4 | 673 | |
e70ae99e TT |
674 | /* |
675 | * Given a busted directory, try to salvage it somehow. | |
efc6f628 | 676 | * |
e70ae99e | 677 | */ |
ad4fa466 | 678 | static void salvage_directory(ext2_filsys fs, |
e70ae99e TT |
679 | struct ext2_dir_entry *dirent, |
680 | struct ext2_dir_entry *prev, | |
82ad476d DW |
681 | unsigned int *offset, |
682 | unsigned int block_len) | |
e70ae99e TT |
683 | { |
684 | char *cp = (char *) dirent; | |
8a480350 TT |
685 | int left; |
686 | unsigned int rec_len, prev_rec_len; | |
4a3dc1f0 | 687 | unsigned int name_len; |
e70ae99e | 688 | |
4a3dc1f0 DW |
689 | /* |
690 | * If the space left for the entry is too small to be an entry, | |
691 | * we can't access dirent's fields, so plumb in the values needed | |
692 | * so that the previous entry absorbs this one. | |
693 | */ | |
694 | if (block_len - *offset < EXT2_DIR_ENTRY_HEADER_LEN) { | |
695 | name_len = 0; | |
696 | rec_len = block_len - *offset; | |
697 | } else { | |
698 | name_len = ext2fs_dirent_name_len(dirent); | |
699 | (void) ext2fs_get_rec_len(fs, dirent, &rec_len); | |
700 | } | |
82ad476d | 701 | left = block_len - *offset - rec_len; |
5dd77dbe | 702 | |
e70ae99e TT |
703 | /* |
704 | * Special case of directory entry of size 8: copy what's left | |
705 | * of the directory block up to cover up the invalid hole. | |
706 | */ | |
4a3dc1f0 DW |
707 | if ((left >= 12) && (rec_len == EXT2_DIR_ENTRY_HEADER_LEN)) { |
708 | memmove(cp, cp+EXT2_DIR_ENTRY_HEADER_LEN, left); | |
709 | memset(cp + left, 0, EXT2_DIR_ENTRY_HEADER_LEN); | |
ad4fa466 TT |
710 | return; |
711 | } | |
712 | /* | |
713 | * If the directory entry overruns the end of the directory | |
714 | * block, and the name is small enough to fit, then adjust the | |
715 | * record length. | |
716 | */ | |
717 | if ((left < 0) && | |
4a3dc1f0 DW |
718 | ((int) rec_len + left > EXT2_DIR_ENTRY_HEADER_LEN) && |
719 | ((int) name_len + EXT2_DIR_ENTRY_HEADER_LEN <= (int) rec_len + left) && | |
ad4fa466 TT |
720 | dirent->inode <= fs->super->s_inodes_count && |
721 | strnlen(dirent->name, name_len) == name_len) { | |
8a480350 | 722 | (void) ext2fs_set_rec_len(fs, (int) rec_len + left, dirent); |
ad4fa466 | 723 | return; |
e70ae99e TT |
724 | } |
725 | /* | |
575307cc KS |
726 | * If the record length of the directory entry is a multiple |
727 | * of four, and not too big, such that it is valid, let the | |
728 | * previous directory entry absorb the invalid one. | |
e70ae99e | 729 | */ |
5dd77dbe | 730 | if (prev && rec_len && (rec_len % 4) == 0 && |
82ad476d | 731 | (*offset + rec_len <= block_len)) { |
8a480350 TT |
732 | (void) ext2fs_get_rec_len(fs, prev, &prev_rec_len); |
733 | prev_rec_len += rec_len; | |
734 | (void) ext2fs_set_rec_len(fs, prev_rec_len, prev); | |
5dd77dbe | 735 | *offset += rec_len; |
ad4fa466 | 736 | return; |
e70ae99e TT |
737 | } |
738 | /* | |
739 | * Default salvage method --- kill all of the directory | |
740 | * entries for the rest of the block. We will either try to | |
741 | * absorb it into the previous directory entry, or create a | |
742 | * new empty directory entry the rest of the directory block. | |
743 | */ | |
744 | if (prev) { | |
8a480350 | 745 | (void) ext2fs_get_rec_len(fs, prev, &prev_rec_len); |
82ad476d | 746 | prev_rec_len += block_len - *offset; |
8a480350 | 747 | (void) ext2fs_set_rec_len(fs, prev_rec_len, prev); |
ad4fa466 | 748 | *offset = fs->blocksize; |
e70ae99e | 749 | } else { |
82ad476d | 750 | rec_len = block_len - *offset; |
8a480350 | 751 | (void) ext2fs_set_rec_len(fs, rec_len, dirent); |
70f4632b JK |
752 | ext2fs_dirent_set_name_len(dirent, 0); |
753 | ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN); | |
e70ae99e | 754 | dirent->inode = 0; |
e70ae99e | 755 | } |
e70ae99e TT |
756 | } |
757 | ||
d3eb1502 | 758 | #define NEXT_DIRENT(d) ((void *)((char *)(d) + (d)->rec_len)) |
17641bf2 DW |
759 | static errcode_t insert_dirent_tail(ext2_filsys fs, void *dirbuf) |
760 | { | |
761 | struct ext2_dir_entry *d; | |
762 | void *top; | |
763 | struct ext2_dir_entry_tail *t; | |
17641bf2 DW |
764 | |
765 | d = dirbuf; | |
766 | top = EXT2_DIRENT_TAIL(dirbuf, fs->blocksize); | |
767 | ||
d3eb1502 DW |
768 | while (d->rec_len && !(d->rec_len & 0x3) && NEXT_DIRENT(d) <= top) |
769 | d = NEXT_DIRENT(d); | |
17641bf2 DW |
770 | |
771 | if (d != top) { | |
772 | size_t min_size = EXT2_DIR_REC_LEN( | |
773 | ext2fs_dirent_name_len(dirbuf)); | |
d3eb1502 | 774 | if (min_size > top - (void *)d) |
17641bf2 | 775 | return EXT2_ET_DIR_NO_SPACE_FOR_CSUM; |
d3eb1502 | 776 | d->rec_len = top - (void *)d; |
17641bf2 DW |
777 | } |
778 | ||
779 | t = (struct ext2_dir_entry_tail *)top; | |
780 | if (t->det_reserved_zero1 || | |
781 | t->det_rec_len != sizeof(struct ext2_dir_entry_tail) || | |
782 | t->det_reserved_name_len != EXT2_DIR_NAME_LEN_CSUM) | |
783 | ext2fs_initialize_dirent_tail(fs, t); | |
784 | ||
785 | return 0; | |
786 | } | |
d3eb1502 | 787 | #undef NEXT_DIRENT |
17641bf2 | 788 | |
52b0c6e6 DW |
789 | static errcode_t fix_inline_dir_size(e2fsck_t ctx, ext2_ino_t ino, |
790 | size_t *inline_data_size, | |
791 | struct problem_context *pctx, | |
792 | char *buf) | |
793 | { | |
794 | ext2_filsys fs = ctx->fs; | |
795 | struct ext2_inode inode; | |
796 | size_t new_size, old_size; | |
797 | errcode_t retval; | |
798 | ||
799 | old_size = *inline_data_size; | |
0ac4b397 DW |
800 | /* |
801 | * If there's not enough bytes to start the "second" dir block | |
802 | * (in the EA space) then truncate everything to the first block. | |
803 | */ | |
804 | if (old_size > EXT4_MIN_INLINE_DATA_SIZE && | |
805 | old_size < EXT4_MIN_INLINE_DATA_SIZE + | |
806 | EXT2_DIR_REC_LEN(1)) { | |
807 | old_size = EXT4_MIN_INLINE_DATA_SIZE; | |
808 | new_size = old_size; | |
809 | } else | |
810 | /* Increase to the next four-byte boundary for salvaging */ | |
811 | new_size = old_size + (4 - (old_size & 3)); | |
52b0c6e6 DW |
812 | memset(buf + old_size, 0, new_size - old_size); |
813 | retval = ext2fs_inline_data_set(fs, ino, 0, buf, new_size); | |
814 | if (retval == EXT2_ET_INLINE_DATA_NO_SPACE) { | |
0ac4b397 | 815 | /* Or we can't, so truncate. */ |
52b0c6e6 DW |
816 | new_size -= 4; |
817 | retval = ext2fs_inline_data_set(fs, ino, 0, buf, new_size); | |
818 | if (retval) { | |
819 | if (fix_problem(ctx, PR_2_FIX_INLINE_DIR_FAILED, | |
820 | pctx)) { | |
821 | new_size = 0; | |
822 | goto write_inode; | |
823 | } | |
824 | goto err; | |
825 | } | |
826 | } else if (retval) { | |
827 | if (fix_problem(ctx, PR_2_FIX_INLINE_DIR_FAILED, | |
828 | pctx)) { | |
829 | new_size = 0; | |
830 | goto write_inode; | |
831 | } | |
832 | goto err; | |
833 | } | |
834 | ||
835 | write_inode: | |
836 | retval = ext2fs_read_inode(fs, ino, &inode); | |
837 | if (retval) | |
838 | goto err; | |
839 | ||
840 | retval = ext2fs_inode_size_set(fs, &inode, new_size); | |
841 | if (retval) | |
842 | goto err; | |
843 | if (new_size == 0) | |
844 | inode.i_flags &= ~EXT4_INLINE_DATA_FL; | |
845 | retval = ext2fs_write_inode(fs, ino, &inode); | |
846 | if (retval) | |
847 | goto err; | |
848 | *inline_data_size = new_size; | |
849 | ||
850 | err: | |
851 | return retval; | |
852 | } | |
853 | ||
a5abfe03 DW |
854 | static int check_dir_block2(ext2_filsys fs, |
855 | struct ext2_db_entry2 *db, | |
856 | void *priv_data) | |
857 | { | |
858 | int err; | |
859 | struct check_dir_struct *cd = priv_data; | |
860 | ||
861 | if (cd->ra_entries && cd->list_offset >= cd->next_ra_off) { | |
862 | err = e2fsck_readahead_dblist(fs, | |
863 | E2FSCK_RA_DBLIST_IGNORE_BLOCKCNT, | |
864 | fs->dblist, | |
865 | cd->list_offset + cd->ra_entries / 8, | |
866 | cd->ra_entries); | |
867 | if (err) | |
868 | cd->ra_entries = 0; | |
869 | cd->next_ra_off = cd->list_offset + (cd->ra_entries * 7 / 8); | |
870 | } | |
871 | ||
872 | err = check_dir_block(fs, db, priv_data); | |
873 | cd->list_offset++; | |
874 | return err; | |
875 | } | |
876 | ||
3839e657 | 877 | static int check_dir_block(ext2_filsys fs, |
6dc64392 | 878 | struct ext2_db_entry2 *db, |
54dc7ca2 | 879 | void *priv_data) |
3839e657 | 880 | { |
8fdc9985 | 881 | struct dx_dir_info *dx_dir; |
8fdc9985 | 882 | struct dx_dirblock_info *dx_db = 0; |
6582dbe9 | 883 | struct ext2_dir_entry *dirent, *prev, dot, dotdot; |
8fdc9985 | 884 | ext2_dirhash_t hash; |
54434927 | 885 | unsigned int offset = 0; |
3839e657 | 886 | int dir_modified = 0; |
21c84b71 | 887 | int dot_state; |
03fa6f8a | 888 | unsigned int rec_len; |
6dc64392 | 889 | blk64_t block_nr = db->blk; |
86c627ec | 890 | ext2_ino_t ino = db->ino; |
28db82a8 | 891 | ext2_ino_t subdir_parent; |
21c84b71 | 892 | __u16 links; |
54dc7ca2 | 893 | struct check_dir_struct *cd; |
0ac4b397 | 894 | char *buf, *ibuf; |
1b6bf175 | 895 | e2fsck_t ctx; |
3c7c6d73 | 896 | problem_t problem; |
ea1959f0 | 897 | struct ext2_dx_root_info *root; |
e8254bfd | 898 | struct ext2_dx_countlimit *limit; |
0926668d TT |
899 | static dict_t de_dict; |
900 | struct problem_context pctx; | |
901 | int dups_found = 0; | |
28db82a8 | 902 | int ret; |
e8548796 | 903 | int dx_csum_size = 0, de_csum_size = 0; |
81683c6a | 904 | int failed_csum = 0; |
e8548796 | 905 | int is_leaf = 1; |
24997f1c | 906 | size_t inline_data_size = 0; |
6582dbe9 | 907 | int filetype = 0; |
62ad2480 | 908 | int encrypted = 0; |
0ac4b397 | 909 | size_t max_block_size; |
1b6bf175 | 910 | |
54dc7ca2 | 911 | cd = (struct check_dir_struct *) priv_data; |
0ac4b397 | 912 | ibuf = buf = cd->buf; |
1b6bf175 | 913 | ctx = cd->ctx; |
f8188fff | 914 | |
49a7360b | 915 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK || ctx->flags & E2F_FLAG_RESTART) |
4cae0452 | 916 | return DIRENT_ABORT; |
efc6f628 | 917 | |
4cae0452 TT |
918 | if (ctx->progress && (ctx->progress)(ctx, 2, cd->count++, cd->max)) |
919 | return DIRENT_ABORT; | |
efc6f628 | 920 | |
07307114 | 921 | if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super, |
e8548796 | 922 | EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) { |
07307114 | 923 | dx_csum_size = sizeof(struct ext2_dx_tail); |
e8548796 DW |
924 | de_csum_size = sizeof(struct ext2_dir_entry_tail); |
925 | } | |
07307114 | 926 | |
6582dbe9 ZL |
927 | if (EXT2_HAS_INCOMPAT_FEATURE(fs->super, |
928 | EXT2_FEATURE_INCOMPAT_FILETYPE)) | |
929 | filetype = EXT2_FT_DIR << 8; | |
930 | ||
3839e657 | 931 | /* |
efc6f628 | 932 | * Make sure the inode is still in use (could have been |
3839e657 TT |
933 | * deleted in the duplicate/bad blocks pass. |
934 | */ | |
c5d2f50d | 935 | if (!(ext2fs_test_inode_bitmap2(ctx->inode_used_map, ino))) |
3839e657 | 936 | return 0; |
50e1e10f | 937 | |
21c84b71 TT |
938 | cd->pctx.ino = ino; |
939 | cd->pctx.blk = block_nr; | |
940 | cd->pctx.blkcount = db->blockcnt; | |
941 | cd->pctx.ino2 = 0; | |
942 | cd->pctx.dirent = 0; | |
943 | cd->pctx.num = 0; | |
944 | ||
6582dbe9 ZL |
945 | if (EXT2_HAS_INCOMPAT_FEATURE(fs->super, |
946 | EXT4_FEATURE_INCOMPAT_INLINE_DATA)) { | |
947 | errcode_t ec; | |
948 | ||
949 | ec = ext2fs_inline_data_size(fs, ino, &inline_data_size); | |
950 | if (ec && ec != EXT2_ET_NO_INLINE_DATA) | |
951 | return DIRENT_ABORT; | |
952 | } | |
953 | ||
954 | if (db->blk == 0 && !inline_data_size) { | |
1b6bf175 | 955 | if (allocate_dir_block(ctx, db, buf, &cd->pctx)) |
50e1e10f TT |
956 | return 0; |
957 | block_nr = db->blk; | |
958 | } | |
efc6f628 | 959 | |
3839e657 TT |
960 | if (db->blockcnt) |
961 | dot_state = 2; | |
962 | else | |
963 | dot_state = 0; | |
964 | ||
0926668d TT |
965 | if (ctx->dirs_to_hash && |
966 | ext2fs_u32_list_test(ctx->dirs_to_hash, ino)) | |
967 | dups_found++; | |
968 | ||
3839e657 | 969 | #if 0 |
f3db3566 | 970 | printf("In process_dir_block block %lu, #%d, inode %lu\n", block_nr, |
3839e657 TT |
971 | db->blockcnt, ino); |
972 | #endif | |
efc6f628 | 973 | |
f85a9ae6 | 974 | ehandler_operation(_("reading directory block")); |
cd971869 | 975 | if (inline_data_size) { |
4a3dc1f0 | 976 | memset(buf, 0, fs->blocksize - inline_data_size); |
6582dbe9 | 977 | cd->pctx.errcode = ext2fs_inline_data_get(fs, ino, 0, buf, 0); |
cd971869 DW |
978 | if (cd->pctx.errcode) |
979 | goto inline_read_fail; | |
980 | #ifdef WORDS_BIGENDIAN | |
0ac4b397 DW |
981 | if (db->blockcnt) |
982 | goto skip_first_read_swab; | |
cd971869 DW |
983 | *((__u32 *)buf) = ext2fs_le32_to_cpu(*((__u32 *)buf)); |
984 | cd->pctx.errcode = ext2fs_dirent_swab_in2(fs, | |
985 | buf + EXT4_INLINE_DATA_DOTDOT_SIZE, | |
0ac4b397 DW |
986 | EXT4_MIN_INLINE_DATA_SIZE - EXT4_INLINE_DATA_DOTDOT_SIZE, |
987 | 0); | |
988 | if (cd->pctx.errcode) | |
989 | goto inline_read_fail; | |
990 | skip_first_read_swab: | |
991 | if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE || | |
992 | !db->blockcnt) | |
993 | goto inline_read_fail; | |
994 | cd->pctx.errcode = ext2fs_dirent_swab_in2(fs, | |
995 | buf + EXT4_MIN_INLINE_DATA_SIZE, | |
996 | inline_data_size - EXT4_MIN_INLINE_DATA_SIZE, | |
cd971869 DW |
997 | 0); |
998 | #endif | |
999 | } else | |
6582dbe9 ZL |
1000 | cd->pctx.errcode = ext2fs_read_dir_block4(fs, block_nr, |
1001 | buf, 0, ino); | |
cd971869 | 1002 | inline_read_fail: |
52b0c6e6 DW |
1003 | pctx.ino = ino; |
1004 | pctx.num = inline_data_size; | |
0ac4b397 DW |
1005 | if (((inline_data_size & 3) || |
1006 | (inline_data_size > EXT4_MIN_INLINE_DATA_SIZE && | |
1007 | inline_data_size < EXT4_MIN_INLINE_DATA_SIZE + | |
1008 | EXT2_DIR_REC_LEN(1))) && | |
52b0c6e6 DW |
1009 | fix_problem(ctx, PR_2_BAD_INLINE_DIR_SIZE, &pctx)) { |
1010 | errcode_t err = fix_inline_dir_size(ctx, ino, | |
1011 | &inline_data_size, &pctx, | |
1012 | buf); | |
1013 | if (err) | |
1014 | return DIRENT_ABORT; | |
1015 | ||
1016 | } | |
e94bc631 | 1017 | ehandler_operation(0); |
b9852cd8 TT |
1018 | if (cd->pctx.errcode == EXT2_ET_DIR_CORRUPTED) |
1019 | cd->pctx.errcode = 0; /* We'll handle this ourselves */ | |
81683c6a DW |
1020 | else if (cd->pctx.errcode == EXT2_ET_DIR_CSUM_INVALID) { |
1021 | cd->pctx.errcode = 0; /* We'll handle this ourselves */ | |
1022 | failed_csum = 1; | |
1023 | } | |
1b6bf175 | 1024 | if (cd->pctx.errcode) { |
e8548796 | 1025 | char *buf2; |
08b21301 TT |
1026 | if (!fix_problem(ctx, PR_2_READ_DIRBLOCK, &cd->pctx)) { |
1027 | ctx->flags |= E2F_FLAG_ABORT; | |
1028 | return DIRENT_ABORT; | |
1029 | } | |
e8548796 DW |
1030 | ext2fs_new_dir_block(fs, db->blockcnt == 0 ? ino : 0, |
1031 | EXT2_ROOT_INO, &buf2); | |
1032 | memcpy(buf, buf2, fs->blocksize); | |
1033 | ext2fs_free_mem(&buf2); | |
3839e657 | 1034 | } |
8fdc9985 | 1035 | dx_dir = e2fsck_get_dx_dir_info(ctx, ino); |
62acaa1d | 1036 | if (dx_dir && dx_dir->numblocks) { |
8fdc9985 | 1037 | if (db->blockcnt >= dx_dir->numblocks) { |
ea9085c7 | 1038 | pctx.dir = ino; |
efc6f628 | 1039 | if (fix_problem(ctx, PR_2_UNEXPECTED_HTREE_BLOCK, |
d45edec0 TT |
1040 | &pctx)) { |
1041 | clear_htree(ctx, ino); | |
1042 | dx_dir->numblocks = 0; | |
1043 | dx_db = 0; | |
1044 | goto out_htree; | |
1045 | } | |
1046 | fatal_error(ctx, _("Can not continue.")); | |
8fdc9985 TT |
1047 | } |
1048 | dx_db = &dx_dir->dx_block[db->blockcnt]; | |
1049 | dx_db->type = DX_DIRBLOCK_LEAF; | |
1050 | dx_db->phys = block_nr; | |
1051 | dx_db->min_hash = ~0; | |
1052 | dx_db->max_hash = 0; | |
efc6f628 | 1053 | |
8fdc9985 | 1054 | dirent = (struct ext2_dir_entry *) buf; |
8a480350 | 1055 | (void) ext2fs_get_rec_len(fs, dirent, &rec_len); |
e8254bfd | 1056 | limit = (struct ext2_dx_countlimit *) (buf+8); |
8fdc9985 | 1057 | if (db->blockcnt == 0) { |
ea1959f0 | 1058 | root = (struct ext2_dx_root_info *) (buf + 24); |
8fdc9985 TT |
1059 | dx_db->type = DX_DIRBLOCK_ROOT; |
1060 | dx_db->flags |= DX_FLAG_FIRST | DX_FLAG_LAST; | |
ea1959f0 TT |
1061 | if ((root->reserved_zero || |
1062 | root->info_length < 8 || | |
1063 | root->indirect_levels > 1) && | |
1064 | fix_problem(ctx, PR_2_HTREE_BAD_ROOT, &cd->pctx)) { | |
1065 | clear_htree(ctx, ino); | |
1066 | dx_dir->numblocks = 0; | |
1067 | dx_db = 0; | |
f77704e4 | 1068 | } |
ea1959f0 | 1069 | dx_dir->hashversion = root->hash_version; |
f77704e4 TT |
1070 | if ((dx_dir->hashversion <= EXT2_HASH_TEA) && |
1071 | (fs->super->s_flags & EXT2_FLAGS_UNSIGNED_HASH)) | |
1072 | dx_dir->hashversion += 3; | |
ad4fa466 | 1073 | dx_dir->depth = root->indirect_levels + 1; |
8fdc9985 | 1074 | } else if ((dirent->inode == 0) && |
5dd77dbe | 1075 | (rec_len == fs->blocksize) && |
70f4632b | 1076 | (ext2fs_dirent_name_len(dirent) == 0) && |
efc6f628 | 1077 | (ext2fs_le16_to_cpu(limit->limit) == |
07307114 | 1078 | ((fs->blocksize - (8 + dx_csum_size)) / |
8132d840 | 1079 | sizeof(struct ext2_dx_entry)))) |
8fdc9985 | 1080 | dx_db->type = DX_DIRBLOCK_NODE; |
e8548796 | 1081 | is_leaf = 0; |
8fdc9985 | 1082 | } |
d45edec0 | 1083 | out_htree: |
3839e657 | 1084 | |
7f43a46f DW |
1085 | /* Leaf node with no space for csum? Rebuild dirs in pass 3A. */ |
1086 | if (is_leaf && !inline_data_size && failed_csum && | |
1087 | !ext2fs_dirent_has_tail(fs, (struct ext2_dir_entry *)buf)) { | |
1088 | de_csum_size = 0; | |
d02d0195 DW |
1089 | if (e2fsck_dir_will_be_rehashed(ctx, ino)) { |
1090 | failed_csum = 0; | |
1091 | goto skip_checksum; | |
1092 | } | |
1093 | if (!fix_problem(cd->ctx, PR_2_LEAF_NODE_MISSING_CSUM, | |
7f43a46f | 1094 | &cd->pctx)) |
e8548796 | 1095 | goto skip_checksum; |
7f43a46f | 1096 | e2fsck_rehash_dir_later(ctx, ino); |
d02d0195 | 1097 | failed_csum = 0; |
7f43a46f | 1098 | goto skip_checksum; |
e8548796 DW |
1099 | } |
1100 | /* htree nodes don't use fake dirents to store checksums */ | |
1101 | if (!is_leaf) | |
1102 | de_csum_size = 0; | |
1103 | ||
1104 | skip_checksum: | |
0ac4b397 DW |
1105 | if (inline_data_size) { |
1106 | if (db->blockcnt) { | |
1107 | buf += EXT4_MIN_INLINE_DATA_SIZE; | |
1108 | max_block_size = inline_data_size - EXT4_MIN_INLINE_DATA_SIZE; | |
1109 | /* Zero-length second block, just exit */ | |
1110 | if (max_block_size == 0) | |
1111 | return 0; | |
1112 | } else { | |
1113 | max_block_size = EXT4_MIN_INLINE_DATA_SIZE; | |
1114 | } | |
1115 | } else | |
1116 | max_block_size = fs->blocksize - de_csum_size; | |
1117 | ||
62ad2480 TT |
1118 | if (ctx->encrypted_dirs) |
1119 | encrypted = ext2fs_u32_list_test(ctx->encrypted_dirs, ino); | |
1120 | ||
0926668d | 1121 | dict_init(&de_dict, DICTCOUNT_T_MAX, dict_de_cmp); |
e70ae99e | 1122 | prev = 0; |
3839e657 | 1123 | do { |
3971bfe8 | 1124 | dgrp_t group; |
49a7360b | 1125 | ext2_ino_t first_unused_inode; |
70f4632b | 1126 | unsigned int name_len; |
49a7360b | 1127 | |
1b6bf175 | 1128 | problem = 0; |
6582dbe9 ZL |
1129 | if (!inline_data_size || dot_state > 1) { |
1130 | dirent = (struct ext2_dir_entry *) (buf + offset); | |
4a3dc1f0 DW |
1131 | /* |
1132 | * If there's not even space for the entry header, | |
1133 | * force salvaging this dir. | |
1134 | */ | |
1135 | if (max_block_size - offset < EXT2_DIR_ENTRY_HEADER_LEN) | |
1136 | rec_len = EXT2_DIR_REC_LEN(1); | |
1137 | else | |
1138 | (void) ext2fs_get_rec_len(fs, dirent, &rec_len); | |
6582dbe9 ZL |
1139 | cd->pctx.dirent = dirent; |
1140 | cd->pctx.num = offset; | |
4a3dc1f0 | 1141 | if ((offset + rec_len > max_block_size) || |
6582dbe9 ZL |
1142 | (rec_len < 12) || |
1143 | ((rec_len % 4) != 0) || | |
4a3dc1f0 | 1144 | ((ext2fs_dirent_name_len(dirent) + EXT2_DIR_ENTRY_HEADER_LEN) > rec_len)) { |
82ad476d DW |
1145 | if (fix_problem(ctx, PR_2_DIR_CORRUPTED, |
1146 | &cd->pctx)) { | |
4348709c DW |
1147 | #ifdef WORDS_BIGENDIAN |
1148 | /* | |
1149 | * On big-endian systems, if the dirent | |
1150 | * swap routine finds a rec_len that it | |
1151 | * doesn't like, it continues | |
1152 | * processing the block as if rec_len | |
4a3dc1f0 | 1153 | * == EXT2_DIR_ENTRY_HEADER_LEN. This means that the name |
4348709c DW |
1154 | * field gets byte swapped, which means |
1155 | * that salvage will not detect the | |
1156 | * correct name length (unless the name | |
1157 | * has a length that's an exact | |
1158 | * multiple of four bytes), and it'll | |
1159 | * discard the entry (unnecessarily) | |
1160 | * and the rest of the dirent block. | |
1161 | * Therefore, swap the rest of the | |
1162 | * block back to disk order, run | |
1163 | * salvage, and re-swap anything after | |
1164 | * the salvaged dirent. | |
1165 | */ | |
1166 | int need_reswab = 0; | |
4a3dc1f0 | 1167 | if (rec_len < EXT2_DIR_ENTRY_HEADER_LEN || rec_len % 4) { |
4348709c DW |
1168 | need_reswab = 1; |
1169 | ext2fs_dirent_swab_in2(fs, | |
4a3dc1f0 DW |
1170 | ((char *)dirent) + EXT2_DIR_ENTRY_HEADER_LEN, |
1171 | max_block_size - offset - EXT2_DIR_ENTRY_HEADER_LEN, | |
4348709c DW |
1172 | 0); |
1173 | } | |
1174 | #endif | |
82ad476d DW |
1175 | salvage_directory(fs, dirent, prev, |
1176 | &offset, | |
3a748dfc | 1177 | max_block_size); |
4348709c DW |
1178 | #ifdef WORDS_BIGENDIAN |
1179 | if (need_reswab) { | |
1180 | (void) ext2fs_get_rec_len(fs, | |
1181 | dirent, &rec_len); | |
1182 | ext2fs_dirent_swab_in2(fs, | |
1183 | ((char *)dirent) + offset + rec_len, | |
1184 | max_block_size - offset - rec_len, | |
1185 | 0); | |
1186 | } | |
1187 | #endif | |
6582dbe9 ZL |
1188 | dir_modified++; |
1189 | continue; | |
1190 | } else | |
1191 | goto abort_free_dict; | |
1192 | } | |
1193 | } else { | |
1194 | if (dot_state == 0) { | |
1195 | memset(&dot, 0, sizeof(dot)); | |
1196 | dirent = ˙ | |
1197 | dirent->inode = ino; | |
1198 | dirent->rec_len = EXT2_DIR_REC_LEN(1); | |
1199 | dirent->name_len = 1 | filetype; | |
1200 | dirent->name[0] = '.'; | |
1201 | } else if (dot_state == 1) { | |
1202 | memset(&dotdot, 0, sizeof(dotdot)); | |
1203 | dirent = &dotdot; | |
1204 | dirent->inode = | |
1205 | ((struct ext2_dir_entry *)buf)->inode; | |
1206 | dirent->rec_len = EXT2_DIR_REC_LEN(2); | |
1207 | dirent->name_len = 2 | filetype; | |
1208 | dirent->name[0] = '.'; | |
1209 | dirent->name[1] = '.'; | |
1210 | } else { | |
1211 | fatal_error(ctx, _("Can not continue.")); | |
1212 | } | |
1213 | cd->pctx.dirent = dirent; | |
1214 | cd->pctx.num = offset; | |
3839e657 | 1215 | } |
50e1e10f | 1216 | |
e70ae99e | 1217 | if (dot_state == 0) { |
1b6bf175 | 1218 | if (check_dot(ctx, dirent, ino, &cd->pctx)) |
3839e657 | 1219 | dir_modified++; |
e70ae99e | 1220 | } else if (dot_state == 1) { |
28db82a8 TT |
1221 | ret = check_dotdot(ctx, dirent, ino, &cd->pctx); |
1222 | if (ret < 0) | |
0926668d | 1223 | goto abort_free_dict; |
28db82a8 | 1224 | if (ret) |
3839e657 TT |
1225 | dir_modified++; |
1226 | } else if (dirent->inode == ino) { | |
1b6bf175 TT |
1227 | problem = PR_2_LINK_DOT; |
1228 | if (fix_problem(ctx, PR_2_LINK_DOT, &cd->pctx)) { | |
3839e657 TT |
1229 | dirent->inode = 0; |
1230 | dir_modified++; | |
21c84b71 | 1231 | goto next; |
3839e657 TT |
1232 | } |
1233 | } | |
efc6f628 | 1234 | if (!dirent->inode) |
3839e657 | 1235 | goto next; |
efc6f628 | 1236 | |
3839e657 TT |
1237 | /* |
1238 | * Make sure the inode listed is a legal one. | |
efc6f628 | 1239 | */ |
70f4632b | 1240 | name_len = ext2fs_dirent_name_len(dirent); |
3839e657 | 1241 | if (((dirent->inode != EXT2_ROOT_INO) && |
7f88b043 | 1242 | (dirent->inode < EXT2_FIRST_INODE(fs->super))) || |
3839e657 | 1243 | (dirent->inode > fs->super->s_inodes_count)) { |
1b6bf175 | 1244 | problem = PR_2_BAD_INO; |
1b6bf175 | 1245 | } else if (ctx->inode_bb_map && |
c5d2f50d | 1246 | (ext2fs_test_inode_bitmap2(ctx->inode_bb_map, |
1b6bf175 TT |
1247 | dirent->inode))) { |
1248 | /* | |
1249 | * If the inode is in a bad block, offer to | |
1250 | * clear it. | |
1251 | */ | |
1252 | problem = PR_2_BB_INODE; | |
70f4632b | 1253 | } else if ((dot_state > 1) && (name_len == 1) && |
1b6bf175 TT |
1254 | (dirent->name[0] == '.')) { |
1255 | /* | |
1256 | * If there's a '.' entry in anything other | |
1257 | * than the first directory entry, it's a | |
1258 | * duplicate entry that should be removed. | |
1259 | */ | |
1260 | problem = PR_2_DUP_DOT; | |
70f4632b | 1261 | } else if ((dot_state > 1) && (name_len == 2) && |
efc6f628 | 1262 | (dirent->name[0] == '.') && |
1b6bf175 TT |
1263 | (dirent->name[1] == '.')) { |
1264 | /* | |
1265 | * If there's a '..' entry in anything other | |
1266 | * than the second directory entry, it's a | |
1267 | * duplicate entry that should be removed. | |
1268 | */ | |
1269 | problem = PR_2_DUP_DOT_DOT; | |
e70ae99e | 1270 | } else if ((dot_state > 1) && |
1b6bf175 TT |
1271 | (dirent->inode == EXT2_ROOT_INO)) { |
1272 | /* | |
1273 | * Don't allow links to the root directory. | |
1274 | * We check this specially to make sure we | |
1275 | * catch this error case even if the root | |
1276 | * directory hasn't been created yet. | |
1277 | */ | |
1278 | problem = PR_2_LINK_ROOT; | |
70f4632b | 1279 | } else if ((dot_state > 1) && (name_len == 0)) { |
c40db6d5 TT |
1280 | /* |
1281 | * Don't allow zero-length directory names. | |
1282 | */ | |
1283 | problem = PR_2_NULL_NAME; | |
21c84b71 TT |
1284 | } |
1285 | ||
1b6bf175 TT |
1286 | if (problem) { |
1287 | if (fix_problem(ctx, problem, &cd->pctx)) { | |
21c84b71 TT |
1288 | dirent->inode = 0; |
1289 | dir_modified++; | |
1290 | goto next; | |
1b6bf175 TT |
1291 | } else { |
1292 | ext2fs_unmark_valid(fs); | |
1293 | if (problem == PR_2_BAD_INO) | |
1294 | goto next; | |
21c84b71 | 1295 | } |
3839e657 TT |
1296 | } |
1297 | ||
1298 | /* | |
1299 | * If the inode was marked as having bad fields in | |
1300 | * pass1, process it and offer to fix/clear it. | |
1301 | * (We wait until now so that we can display the | |
1302 | * pathname to the user.) | |
1303 | */ | |
1b6bf175 | 1304 | if (ctx->inode_bad_map && |
c5d2f50d | 1305 | ext2fs_test_inode_bitmap2(ctx->inode_bad_map, |
3839e657 | 1306 | dirent->inode)) { |
e72a9ba3 | 1307 | if (e2fsck_process_bad_inode(ctx, ino, |
bcf9c5d4 TT |
1308 | dirent->inode, |
1309 | buf + fs->blocksize)) { | |
3839e657 TT |
1310 | dirent->inode = 0; |
1311 | dir_modified++; | |
1312 | goto next; | |
1313 | } | |
a02ce9df | 1314 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK) |
08b21301 | 1315 | return DIRENT_ABORT; |
3839e657 TT |
1316 | } |
1317 | ||
49a7360b JS |
1318 | group = ext2fs_group_of_ino(fs, dirent->inode); |
1319 | first_unused_inode = group * fs->super->s_inodes_per_group + | |
1320 | 1 + fs->super->s_inodes_per_group - | |
d7cca6b0 | 1321 | ext2fs_bg_itable_unused(fs, group); |
49a7360b JS |
1322 | cd->pctx.group = group; |
1323 | ||
1324 | /* | |
42e89ce7 TT |
1325 | * Check if the inode was missed out because |
1326 | * _INODE_UNINIT flag was set or bg_itable_unused was | |
1327 | * incorrect. If so, clear the _INODE_UNINIT flag and | |
1328 | * restart e2fsck. In the future it would be nice if | |
1329 | * we could call a function in pass1.c that checks the | |
1330 | * newly visible inodes. | |
49a7360b | 1331 | */ |
cd65a24e | 1332 | if (ext2fs_bg_flags_test(fs, group, EXT2_BG_INODE_UNINIT)) { |
6267ee49 | 1333 | pctx.num = dirent->inode; |
49a7360b JS |
1334 | if (fix_problem(ctx, PR_2_INOREF_BG_INO_UNINIT, |
1335 | &cd->pctx)){ | |
e633b58a | 1336 | ext2fs_bg_flags_clear(fs, group, |
732c8cd5 | 1337 | EXT2_BG_INODE_UNINIT); |
42e89ce7 | 1338 | ext2fs_mark_super_dirty(fs); |
6267ee49 | 1339 | ctx->flags |= E2F_FLAG_RESTART_LATER; |
49a7360b JS |
1340 | } else { |
1341 | ext2fs_unmark_valid(fs); | |
1342 | if (problem == PR_2_BAD_INO) | |
1343 | goto next; | |
1344 | } | |
1345 | } else if (dirent->inode >= first_unused_inode) { | |
6267ee49 | 1346 | pctx.num = dirent->inode; |
49a7360b | 1347 | if (fix_problem(ctx, PR_2_INOREF_IN_UNUSED, &cd->pctx)){ |
d7cca6b0 | 1348 | ext2fs_bg_itable_unused_set(fs, group, 0); |
49a7360b | 1349 | ext2fs_mark_super_dirty(fs); |
6267ee49 | 1350 | ctx->flags |= E2F_FLAG_RESTART_LATER; |
49a7360b JS |
1351 | } else { |
1352 | ext2fs_unmark_valid(fs); | |
1353 | if (problem == PR_2_BAD_INO) | |
1354 | goto next; | |
1355 | } | |
1356 | } | |
1357 | ||
0433c1f1 TT |
1358 | /* |
1359 | * Offer to clear unused inodes; if we are going to be | |
1360 | * restarting the scan due to bg_itable_unused being | |
1361 | * wrong, then don't clear any inodes to avoid zapping | |
1362 | * inodes that were skipped during pass1 due to an | |
1363 | * incorrect bg_itable_unused; we'll get any real | |
1364 | * problems after we restart. | |
1365 | */ | |
1366 | if (!(ctx->flags & E2F_FLAG_RESTART_LATER) && | |
97d26ce9 TT |
1367 | !(ext2fs_test_inode_bitmap2(ctx->inode_used_map, |
1368 | dirent->inode))) | |
49a7360b | 1369 | problem = PR_2_UNUSED_INODE; |
49a7360b JS |
1370 | |
1371 | if (problem) { | |
1372 | if (fix_problem(ctx, problem, &cd->pctx)) { | |
1373 | dirent->inode = 0; | |
1374 | dir_modified++; | |
1375 | goto next; | |
1376 | } else { | |
1377 | ext2fs_unmark_valid(fs); | |
1378 | if (problem == PR_2_BAD_INO) | |
1379 | goto next; | |
1380 | } | |
1381 | } | |
1382 | ||
25f291c9 | 1383 | if (!encrypted && check_name(ctx, dirent, &cd->pctx)) |
1b6bf175 TT |
1384 | dir_modified++; |
1385 | ||
aa4115a4 TT |
1386 | if (check_filetype(ctx, dirent, ino, &cd->pctx)) |
1387 | dir_modified++; | |
1388 | ||
8fdc9985 | 1389 | if (dx_db) { |
437651ad TT |
1390 | ext2fs_dirhash(dx_dir->hashversion, dirent->name, |
1391 | ext2fs_dirent_name_len(dirent), | |
1392 | fs->super->s_hash_seed, &hash, 0); | |
8fdc9985 TT |
1393 | if (hash < dx_db->min_hash) |
1394 | dx_db->min_hash = hash; | |
1395 | if (hash > dx_db->max_hash) | |
1396 | dx_db->max_hash = hash; | |
1397 | } | |
8fdc9985 | 1398 | |
3839e657 TT |
1399 | /* |
1400 | * If this is a directory, then mark its parent in its | |
1401 | * dir_info structure. If the parent field is already | |
1402 | * filled in, then this directory has more than one | |
1403 | * hard link. We assume the first link is correct, | |
1404 | * and ask the user if he/she wants to clear this one. | |
1405 | */ | |
e70ae99e | 1406 | if ((dot_state > 1) && |
c5d2f50d | 1407 | (ext2fs_test_inode_bitmap2(ctx->inode_dir_map, |
3839e657 | 1408 | dirent->inode))) { |
28db82a8 TT |
1409 | if (e2fsck_dir_info_get_parent(ctx, dirent->inode, |
1410 | &subdir_parent)) { | |
1b6bf175 TT |
1411 | cd->pctx.ino = dirent->inode; |
1412 | fix_problem(ctx, PR_2_NO_DIRINFO, &cd->pctx); | |
0926668d | 1413 | goto abort_free_dict; |
3839e657 | 1414 | } |
28db82a8 TT |
1415 | if (subdir_parent) { |
1416 | cd->pctx.ino2 = subdir_parent; | |
1b6bf175 | 1417 | if (fix_problem(ctx, PR_2_LINK_DIR, |
21c84b71 | 1418 | &cd->pctx)) { |
3839e657 TT |
1419 | dirent->inode = 0; |
1420 | dir_modified++; | |
1421 | goto next; | |
21c84b71 TT |
1422 | } |
1423 | cd->pctx.ino2 = 0; | |
28db82a8 | 1424 | } else { |
efc6f628 | 1425 | (void) e2fsck_dir_info_set_parent(ctx, |
28db82a8 TT |
1426 | dirent->inode, ino); |
1427 | } | |
3839e657 | 1428 | } |
0926668d TT |
1429 | |
1430 | if (dups_found) { | |
1431 | ; | |
1432 | } else if (dict_lookup(&de_dict, dirent)) { | |
1433 | clear_problem_context(&pctx); | |
1434 | pctx.ino = ino; | |
1435 | pctx.dirent = dirent; | |
1436 | fix_problem(ctx, PR_2_REPORT_DUP_DIRENT, &pctx); | |
e8548796 | 1437 | e2fsck_rehash_dir_later(ctx, ino); |
0926668d TT |
1438 | dups_found++; |
1439 | } else | |
1440 | dict_alloc_insert(&de_dict, dirent, dirent); | |
efc6f628 | 1441 | |
1b6bf175 TT |
1442 | ext2fs_icount_increment(ctx->inode_count, dirent->inode, |
1443 | &links); | |
21c84b71 | 1444 | if (links > 1) |
1b6bf175 TT |
1445 | ctx->fs_links_count++; |
1446 | ctx->fs_total_count++; | |
3839e657 | 1447 | next: |
e70ae99e | 1448 | prev = dirent; |
5dd77dbe | 1449 | if (dir_modified) |
8a480350 | 1450 | (void) ext2fs_get_rec_len(fs, dirent, &rec_len); |
6582dbe9 ZL |
1451 | if (!inline_data_size || dot_state > 1) { |
1452 | offset += rec_len; | |
1453 | } else { | |
6698374c | 1454 | if (dot_state == 1) { |
6582dbe9 | 1455 | offset = 4; |
6698374c DW |
1456 | /* |
1457 | * If we get here, we're checking an inline | |
1458 | * directory and we've just checked a (fake) | |
1459 | * dotdot entry that we created on the stack. | |
1460 | * Therefore set 'prev' to NULL so that if we | |
1461 | * call salvage_directory on the next entry, | |
1462 | * it won't try to absorb the next entry into | |
1463 | * the on-stack dotdot entry. | |
1464 | */ | |
1465 | prev = NULL; | |
1466 | } | |
6582dbe9 | 1467 | } |
e70ae99e | 1468 | dot_state++; |
0ac4b397 | 1469 | } while (offset < max_block_size); |
3839e657 TT |
1470 | #if 0 |
1471 | printf("\n"); | |
1472 | #endif | |
8fdc9985 TT |
1473 | if (dx_db) { |
1474 | #ifdef DX_DEBUG | |
1475 | printf("db_block %d, type %d, min_hash 0x%0x, max_hash 0x%0x\n", | |
1476 | db->blockcnt, dx_db->type, | |
1477 | dx_db->min_hash, dx_db->max_hash); | |
1478 | #endif | |
b7a00563 | 1479 | cd->pctx.dir = cd->pctx.ino; |
8fdc9985 TT |
1480 | if ((dx_db->type == DX_DIRBLOCK_ROOT) || |
1481 | (dx_db->type == DX_DIRBLOCK_NODE)) | |
81683c6a | 1482 | parse_int_node(fs, db, cd, dx_dir, buf, failed_csum); |
8fdc9985 | 1483 | } |
e8548796 | 1484 | |
0ac4b397 DW |
1485 | if (offset != max_block_size) { |
1486 | cd->pctx.num = rec_len + offset - max_block_size; | |
1487 | if (fix_problem(ctx, PR_2_FINAL_RECLEN, &cd->pctx)) { | |
1488 | dirent->rec_len = cd->pctx.num; | |
1489 | dir_modified++; | |
1b6bf175 | 1490 | } |
3839e657 TT |
1491 | } |
1492 | if (dir_modified) { | |
2e9d8391 | 1493 | int flags, will_rehash; |
e8548796 DW |
1494 | /* leaf block with no tail? Rehash dirs later. */ |
1495 | if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super, | |
1496 | EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) && | |
1497 | is_leaf && | |
17641bf2 DW |
1498 | !inline_data_size && |
1499 | !ext2fs_dirent_has_tail(fs, (struct ext2_dir_entry *)buf)) { | |
1500 | if (insert_dirent_tail(fs, buf) == 0) | |
1501 | goto write_and_fix; | |
e8548796 | 1502 | e2fsck_rehash_dir_later(ctx, ino); |
17641bf2 | 1503 | } |
e8548796 DW |
1504 | |
1505 | write_and_fix: | |
2e9d8391 DW |
1506 | will_rehash = e2fsck_dir_will_be_rehashed(ctx, ino); |
1507 | if (will_rehash) { | |
1508 | flags = ctx->fs->flags; | |
e8548796 | 1509 | ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS; |
2e9d8391 | 1510 | } |
6582dbe9 | 1511 | if (inline_data_size) { |
0ac4b397 | 1512 | buf = ibuf; |
cd971869 | 1513 | #ifdef WORDS_BIGENDIAN |
0ac4b397 DW |
1514 | if (db->blockcnt) |
1515 | goto skip_first_write_swab; | |
cd971869 DW |
1516 | *((__u32 *)buf) = ext2fs_le32_to_cpu(*((__u32 *)buf)); |
1517 | cd->pctx.errcode = ext2fs_dirent_swab_out2(fs, | |
1518 | buf + EXT4_INLINE_DATA_DOTDOT_SIZE, | |
0ac4b397 | 1519 | EXT4_MIN_INLINE_DATA_SIZE - |
cd971869 DW |
1520 | EXT4_INLINE_DATA_DOTDOT_SIZE, |
1521 | 0); | |
0ac4b397 DW |
1522 | if (cd->pctx.errcode) |
1523 | goto skip_second_write_swab; | |
1524 | skip_first_write_swab: | |
1525 | if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE || | |
1526 | !db->blockcnt) | |
1527 | goto skip_second_write_swab; | |
1528 | cd->pctx.errcode = ext2fs_dirent_swab_out2(fs, | |
1529 | buf + EXT4_MIN_INLINE_DATA_SIZE, | |
1530 | inline_data_size - | |
1531 | EXT4_MIN_INLINE_DATA_SIZE, | |
1532 | 0); | |
1533 | skip_second_write_swab: | |
cd971869 DW |
1534 | if (cd->pctx.errcode && |
1535 | !fix_problem(ctx, PR_2_WRITE_DIRBLOCK, &cd->pctx)) | |
1536 | goto abort_free_dict; | |
1537 | #endif | |
6582dbe9 ZL |
1538 | cd->pctx.errcode = |
1539 | ext2fs_inline_data_set(fs, ino, 0, buf, | |
1540 | inline_data_size); | |
1541 | } else | |
1542 | cd->pctx.errcode = ext2fs_write_dir_block4(fs, block_nr, | |
1543 | buf, 0, ino); | |
2e9d8391 DW |
1544 | if (will_rehash) |
1545 | ctx->fs->flags = (flags & | |
1546 | EXT2_FLAG_IGNORE_CSUM_ERRORS) | | |
1547 | (ctx->fs->flags & | |
1548 | ~EXT2_FLAG_IGNORE_CSUM_ERRORS); | |
1b6bf175 | 1549 | if (cd->pctx.errcode) { |
08b21301 | 1550 | if (!fix_problem(ctx, PR_2_WRITE_DIRBLOCK, |
0926668d TT |
1551 | &cd->pctx)) |
1552 | goto abort_free_dict; | |
3839e657 TT |
1553 | } |
1554 | ext2fs_mark_changed(fs); | |
e8548796 DW |
1555 | } else if (is_leaf && failed_csum && !dir_modified) { |
1556 | /* | |
1557 | * If a leaf node that fails csum makes it this far without | |
1558 | * alteration, ask the user if the checksum should be fixed. | |
1559 | */ | |
1560 | if (fix_problem(ctx, PR_2_LEAF_NODE_ONLY_CSUM_INVALID, | |
1561 | &cd->pctx)) | |
1562 | goto write_and_fix; | |
3839e657 | 1563 | } |
0926668d | 1564 | dict_free_nodes(&de_dict); |
3839e657 | 1565 | return 0; |
0926668d | 1566 | abort_free_dict: |
0926668d | 1567 | ctx->flags |= E2F_FLAG_ABORT; |
49a7360b | 1568 | dict_free_nodes(&de_dict); |
0926668d | 1569 | return DIRENT_ABORT; |
3839e657 TT |
1570 | } |
1571 | ||
624e4a64 AK |
1572 | struct del_block { |
1573 | e2fsck_t ctx; | |
1574 | e2_blkcnt_t num; | |
1575 | }; | |
1576 | ||
3839e657 TT |
1577 | /* |
1578 | * This function is called to deallocate a block, and is an interator | |
1579 | * functioned called by deallocate inode via ext2fs_iterate_block(). | |
1580 | */ | |
1581 | static int deallocate_inode_block(ext2_filsys fs, | |
6dc64392 | 1582 | blk64_t *block_nr, |
54434927 | 1583 | e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), |
6dc64392 | 1584 | blk64_t ref_block EXT2FS_ATTR((unused)), |
54434927 | 1585 | int ref_offset EXT2FS_ATTR((unused)), |
133a56dc | 1586 | void *priv_data) |
3839e657 | 1587 | { |
624e4a64 | 1588 | struct del_block *p = priv_data; |
efc6f628 | 1589 | |
4a05268c | 1590 | if (*block_nr == 0) |
3839e657 | 1591 | return 0; |
1ba7a2f2 | 1592 | if ((*block_nr < fs->super->s_first_data_block) || |
4efbac6f | 1593 | (*block_nr >= ext2fs_blocks_count(fs->super))) |
1ba7a2f2 | 1594 | return 0; |
8dd650ab DW |
1595 | if ((*block_nr % EXT2FS_CLUSTER_RATIO(fs)) == 0) |
1596 | ext2fs_block_alloc_stats2(fs, *block_nr, -1); | |
624e4a64 | 1597 | p->num++; |
3839e657 TT |
1598 | return 0; |
1599 | } | |
efc6f628 | 1600 | |
3839e657 TT |
1601 | /* |
1602 | * This fuction deallocates an inode | |
1603 | */ | |
4035f40b | 1604 | static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf) |
3839e657 | 1605 | { |
1b6bf175 | 1606 | ext2_filsys fs = ctx->fs; |
3839e657 | 1607 | struct ext2_inode inode; |
1b6bf175 | 1608 | struct problem_context pctx; |
0684a4f3 | 1609 | __u32 count; |
624e4a64 | 1610 | struct del_block del_block; |
efc6f628 | 1611 | |
08b21301 | 1612 | e2fsck_read_inode(ctx, ino, &inode, "deallocate_inode"); |
1b6bf175 TT |
1613 | clear_problem_context(&pctx); |
1614 | pctx.ino = ino; | |
f3db3566 | 1615 | |
3839e657 TT |
1616 | /* |
1617 | * Fix up the bitmaps... | |
1618 | */ | |
f8188fff | 1619 | e2fsck_read_bitmaps(ctx); |
0684a4f3 TT |
1620 | ext2fs_inode_alloc_stats2(fs, ino, -1, LINUX_S_ISDIR(inode.i_mode)); |
1621 | ||
0c80c44b | 1622 | if (ext2fs_file_acl_block(fs, &inode) && |
0684a4f3 | 1623 | (fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR)) { |
39f5659a DW |
1624 | pctx.errcode = ext2fs_adjust_ea_refcount3(fs, |
1625 | ext2fs_file_acl_block(fs, &inode), | |
1626 | block_buf, -1, &count, ino); | |
0684a4f3 TT |
1627 | if (pctx.errcode == EXT2_ET_BAD_EA_BLOCK_NUM) { |
1628 | pctx.errcode = 0; | |
1629 | count = 1; | |
1630 | } | |
1631 | if (pctx.errcode) { | |
0c80c44b | 1632 | pctx.blk = ext2fs_file_acl_block(fs, &inode); |
0684a4f3 TT |
1633 | fix_problem(ctx, PR_2_ADJ_EA_REFCOUNT, &pctx); |
1634 | ctx->flags |= E2F_FLAG_ABORT; | |
1635 | return; | |
1636 | } | |
1637 | if (count == 0) { | |
48f23054 | 1638 | ext2fs_block_alloc_stats2(fs, |
0c80c44b | 1639 | ext2fs_file_acl_block(fs, &inode), -1); |
0684a4f3 | 1640 | } |
0c80c44b | 1641 | ext2fs_file_acl_block_set(fs, &inode, 0); |
0684a4f3 | 1642 | } |
3839e657 | 1643 | |
0c80c44b | 1644 | if (!ext2fs_inode_has_valid_blocks2(fs, &inode)) |
c8ec2bad | 1645 | goto clear_inode; |
a4742691 | 1646 | |
2ece8390 DW |
1647 | /* Inline data inodes don't have blocks to iterate */ |
1648 | if (inode.i_flags & EXT4_INLINE_DATA_FL) | |
1649 | goto clear_inode; | |
1650 | ||
3b6c0938 DW |
1651 | if (LINUX_S_ISREG(inode.i_mode) && |
1652 | ext2fs_needs_large_file_feature(EXT2_I_SIZE(&inode))) | |
a4742691 TT |
1653 | ctx->large_files--; |
1654 | ||
624e4a64 AK |
1655 | del_block.ctx = ctx; |
1656 | del_block.num = 0; | |
6dc64392 | 1657 | pctx.errcode = ext2fs_block_iterate3(fs, ino, 0, block_buf, |
624e4a64 AK |
1658 | deallocate_inode_block, |
1659 | &del_block); | |
1b6bf175 TT |
1660 | if (pctx.errcode) { |
1661 | fix_problem(ctx, PR_2_DEALLOC_INODE, &pctx); | |
08b21301 TT |
1662 | ctx->flags |= E2F_FLAG_ABORT; |
1663 | return; | |
1b6bf175 | 1664 | } |
c8ec2bad TT |
1665 | clear_inode: |
1666 | /* Inode may have changed by block_iterate, so reread it */ | |
1667 | e2fsck_read_inode(ctx, ino, &inode, "deallocate_inode"); | |
1668 | e2fsck_clear_inode(ctx, ino, &inode, 0, "deallocate_inode"); | |
3839e657 TT |
1669 | } |
1670 | ||
8fdc9985 TT |
1671 | /* |
1672 | * This fuction clears the htree flag on an inode | |
1673 | */ | |
1674 | static void clear_htree(e2fsck_t ctx, ext2_ino_t ino) | |
1675 | { | |
1676 | struct ext2_inode inode; | |
efc6f628 | 1677 | |
8fdc9985 TT |
1678 | e2fsck_read_inode(ctx, ino, &inode, "clear_htree"); |
1679 | inode.i_flags = inode.i_flags & ~EXT2_INDEX_FL; | |
1680 | e2fsck_write_inode(ctx, ino, &inode, "clear_htree"); | |
b7a00563 TT |
1681 | if (ctx->dirs_to_hash) |
1682 | ext2fs_u32_list_add(ctx->dirs_to_hash, ino); | |
8fdc9985 TT |
1683 | } |
1684 | ||
1685 | ||
f404167d TT |
1686 | int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir, |
1687 | ext2_ino_t ino, char *buf) | |
3839e657 | 1688 | { |
1b6bf175 | 1689 | ext2_filsys fs = ctx->fs; |
3839e657 | 1690 | struct ext2_inode inode; |
3839e657 | 1691 | int inode_modified = 0; |
6c313fd4 | 1692 | int not_fixed = 0; |
1e3472c5 | 1693 | unsigned char *frag, *fsize; |
21c84b71 | 1694 | struct problem_context pctx; |
3c7c6d73 | 1695 | problem_t problem = 0; |
3839e657 | 1696 | |
08b21301 | 1697 | e2fsck_read_inode(ctx, ino, &inode, "process_bad_inode"); |
21c84b71 TT |
1698 | |
1699 | clear_problem_context(&pctx); | |
1700 | pctx.ino = ino; | |
1701 | pctx.dir = dir; | |
1702 | pctx.inode = &inode; | |
1703 | ||
0c80c44b | 1704 | if (ext2fs_file_acl_block(fs, &inode) && |
f76344fb TT |
1705 | !(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR)) { |
1706 | if (fix_problem(ctx, PR_2_FILE_ACL_ZERO, &pctx)) { | |
0c80c44b | 1707 | ext2fs_file_acl_block_set(fs, &inode, 0); |
f76344fb TT |
1708 | inode_modified++; |
1709 | } else | |
1710 | not_fixed++; | |
1711 | } | |
6c313fd4 | 1712 | |
50e1e10f TT |
1713 | if (!LINUX_S_ISDIR(inode.i_mode) && !LINUX_S_ISREG(inode.i_mode) && |
1714 | !LINUX_S_ISCHR(inode.i_mode) && !LINUX_S_ISBLK(inode.i_mode) && | |
1715 | !LINUX_S_ISLNK(inode.i_mode) && !LINUX_S_ISFIFO(inode.i_mode) && | |
08b21301 TT |
1716 | !(LINUX_S_ISSOCK(inode.i_mode))) |
1717 | problem = PR_2_BAD_MODE; | |
fdbdea09 | 1718 | else if (LINUX_S_ISCHR(inode.i_mode) |
0684a4f3 | 1719 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
08b21301 | 1720 | problem = PR_2_BAD_CHAR_DEV; |
fdbdea09 | 1721 | else if (LINUX_S_ISBLK(inode.i_mode) |
0684a4f3 | 1722 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
08b21301 | 1723 | problem = PR_2_BAD_BLOCK_DEV; |
fdbdea09 | 1724 | else if (LINUX_S_ISFIFO(inode.i_mode) |
0684a4f3 | 1725 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
1dde43f0 | 1726 | problem = PR_2_BAD_FIFO; |
fdbdea09 | 1727 | else if (LINUX_S_ISSOCK(inode.i_mode) |
0684a4f3 | 1728 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
1dde43f0 | 1729 | problem = PR_2_BAD_SOCKET; |
fdbdea09 | 1730 | else if (LINUX_S_ISLNK(inode.i_mode) |
7cadc577 | 1731 | && !e2fsck_pass1_check_symlink(fs, ino, &inode, buf)) { |
bcf9c5d4 | 1732 | problem = PR_2_INVALID_SYMLINK; |
67052a8a | 1733 | } |
1dde43f0 | 1734 | |
08b21301 TT |
1735 | if (problem) { |
1736 | if (fix_problem(ctx, problem, &pctx)) { | |
1b6bf175 | 1737 | deallocate_inode(ctx, ino, 0); |
a02ce9df | 1738 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK) |
08b21301 | 1739 | return 0; |
7cf73dcd | 1740 | return 1; |
6c313fd4 TT |
1741 | } else |
1742 | not_fixed++; | |
08b21301 | 1743 | problem = 0; |
7cf73dcd | 1744 | } |
efc6f628 | 1745 | |
6c313fd4 TT |
1746 | if (inode.i_faddr) { |
1747 | if (fix_problem(ctx, PR_2_FADDR_ZERO, &pctx)) { | |
1748 | inode.i_faddr = 0; | |
1749 | inode_modified++; | |
1750 | } else | |
1751 | not_fixed++; | |
3839e657 | 1752 | } |
1e3472c5 TT |
1753 | |
1754 | switch (fs->super->s_creator_os) { | |
1e3472c5 TT |
1755 | case EXT2_OS_HURD: |
1756 | frag = &inode.osd2.hurd2.h_i_frag; | |
1757 | fsize = &inode.osd2.hurd2.h_i_fsize; | |
1758 | break; | |
1e3472c5 TT |
1759 | default: |
1760 | frag = fsize = 0; | |
1761 | } | |
21c84b71 TT |
1762 | if (frag && *frag) { |
1763 | pctx.num = *frag; | |
1b6bf175 | 1764 | if (fix_problem(ctx, PR_2_FRAG_ZERO, &pctx)) { |
21c84b71 TT |
1765 | *frag = 0; |
1766 | inode_modified++; | |
7e0282c5 TT |
1767 | } else |
1768 | not_fixed++; | |
21c84b71 TT |
1769 | pctx.num = 0; |
1770 | } | |
1771 | if (fsize && *fsize) { | |
1772 | pctx.num = *fsize; | |
1b6bf175 | 1773 | if (fix_problem(ctx, PR_2_FSIZE_ZERO, &pctx)) { |
21c84b71 TT |
1774 | *fsize = 0; |
1775 | inode_modified++; | |
6c313fd4 TT |
1776 | } else |
1777 | not_fixed++; | |
21c84b71 TT |
1778 | pctx.num = 0; |
1779 | } | |
1780 | ||
5d17119d | 1781 | if ((fs->super->s_creator_os == EXT2_OS_LINUX) && |
efc6f628 | 1782 | !(fs->super->s_feature_ro_compat & |
5d17119d TT |
1783 | EXT4_FEATURE_RO_COMPAT_HUGE_FILE) && |
1784 | (inode.osd2.linux2.l_i_blocks_hi != 0)) { | |
1785 | pctx.num = inode.osd2.linux2.l_i_blocks_hi; | |
1786 | if (fix_problem(ctx, PR_2_BLOCKS_HI_ZERO, &pctx)) { | |
1787 | inode.osd2.linux2.l_i_blocks_hi = 0; | |
1788 | inode_modified++; | |
1789 | } | |
1790 | } | |
1791 | ||
36769c60 JW |
1792 | if ((fs->super->s_creator_os == EXT2_OS_LINUX) && |
1793 | !(fs->super->s_feature_incompat & | |
911ec626 TT |
1794 | EXT4_FEATURE_INCOMPAT_64BIT) && |
1795 | inode.osd2.linux2.l_i_file_acl_high != 0) { | |
1796 | pctx.num = inode.osd2.linux2.l_i_file_acl_high; | |
1797 | if (fix_problem(ctx, PR_2_I_FILE_ACL_HI_ZERO, &pctx)) { | |
1798 | inode.osd2.linux2.l_i_file_acl_high = 0; | |
1799 | inode_modified++; | |
1800 | } else | |
1801 | not_fixed++; | |
1802 | } | |
1803 | ||
0c80c44b TT |
1804 | if (ext2fs_file_acl_block(fs, &inode) && |
1805 | ((ext2fs_file_acl_block(fs, &inode) < fs->super->s_first_data_block) || | |
1806 | (ext2fs_file_acl_block(fs, &inode) >= ext2fs_blocks_count(fs->super)))) { | |
6c313fd4 | 1807 | if (fix_problem(ctx, PR_2_FILE_ACL_BAD, &pctx)) { |
0c80c44b | 1808 | ext2fs_file_acl_block_set(fs, &inode, 0); |
6c313fd4 TT |
1809 | inode_modified++; |
1810 | } else | |
1811 | not_fixed++; | |
342d847d | 1812 | } |
21c84b71 | 1813 | if (inode.i_dir_acl && |
6c313fd4 TT |
1814 | LINUX_S_ISDIR(inode.i_mode)) { |
1815 | if (fix_problem(ctx, PR_2_DIR_ACL_ZERO, &pctx)) { | |
1816 | inode.i_dir_acl = 0; | |
1817 | inode_modified++; | |
1818 | } else | |
1819 | not_fixed++; | |
21c84b71 | 1820 | } |
6c313fd4 | 1821 | |
f3db3566 | 1822 | if (inode_modified) |
08b21301 | 1823 | e2fsck_write_inode(ctx, ino, &inode, "process_bad_inode"); |
f76344fb | 1824 | if (!not_fixed && ctx->inode_bad_map) |
c5d2f50d | 1825 | ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino); |
3839e657 TT |
1826 | return 0; |
1827 | } | |
1828 | ||
50e1e10f TT |
1829 | /* |
1830 | * allocate_dir_block --- this function allocates a new directory | |
1831 | * block for a particular inode; this is done if a directory has | |
1832 | * a "hole" in it, or if a directory has a illegal block number | |
1833 | * that was zeroed out and now needs to be replaced. | |
1834 | */ | |
1b6bf175 | 1835 | static int allocate_dir_block(e2fsck_t ctx, |
6dc64392 | 1836 | struct ext2_db_entry2 *db, |
efc6f628 | 1837 | char *buf EXT2FS_ATTR((unused)), |
54434927 | 1838 | struct problem_context *pctx) |
50e1e10f | 1839 | { |
1b6bf175 | 1840 | ext2_filsys fs = ctx->fs; |
ff11309e | 1841 | blk64_t blk = 0; |
50e1e10f TT |
1842 | char *block; |
1843 | struct ext2_inode inode; | |
50e1e10f | 1844 | |
1b6bf175 | 1845 | if (fix_problem(ctx, PR_2_DIRECTORY_HOLE, pctx) == 0) |
50e1e10f TT |
1846 | return 1; |
1847 | ||
1848 | /* | |
1849 | * Read the inode and block bitmaps in; we'll be messing with | |
1850 | * them. | |
1851 | */ | |
f8188fff | 1852 | e2fsck_read_bitmaps(ctx); |
efc6f628 | 1853 | |
50e1e10f TT |
1854 | /* |
1855 | * First, find a free block | |
1856 | */ | |
ff11309e DW |
1857 | e2fsck_read_inode(ctx, db->ino, &inode, "allocate_dir_block"); |
1858 | pctx->errcode = ext2fs_map_cluster_block(fs, db->ino, &inode, | |
1859 | db->blockcnt, &blk); | |
1860 | if (pctx->errcode || blk == 0) { | |
7b486ec0 DW |
1861 | blk = ext2fs_find_inode_goal(fs, db->ino, &inode, db->blockcnt); |
1862 | pctx->errcode = ext2fs_new_block2(fs, blk, | |
ff11309e DW |
1863 | ctx->block_found_map, &blk); |
1864 | if (pctx->errcode) { | |
1865 | pctx->str = "ext2fs_new_block"; | |
1866 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
1867 | return 1; | |
1868 | } | |
50e1e10f | 1869 | } |
c5d2f50d VAH |
1870 | ext2fs_mark_block_bitmap2(ctx->block_found_map, blk); |
1871 | ext2fs_mark_block_bitmap2(fs->block_map, blk); | |
50e1e10f TT |
1872 | ext2fs_mark_bb_dirty(fs); |
1873 | ||
1874 | /* | |
1875 | * Now let's create the actual data block for the inode | |
1876 | */ | |
1877 | if (db->blockcnt) | |
1b6bf175 | 1878 | pctx->errcode = ext2fs_new_dir_block(fs, 0, 0, &block); |
50e1e10f | 1879 | else |
1b6bf175 TT |
1880 | pctx->errcode = ext2fs_new_dir_block(fs, db->ino, |
1881 | EXT2_ROOT_INO, &block); | |
50e1e10f | 1882 | |
1b6bf175 TT |
1883 | if (pctx->errcode) { |
1884 | pctx->str = "ext2fs_new_dir_block"; | |
1885 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
50e1e10f TT |
1886 | return 1; |
1887 | } | |
1888 | ||
81683c6a | 1889 | pctx->errcode = ext2fs_write_dir_block4(fs, blk, block, 0, db->ino); |
c4e3d3f3 | 1890 | ext2fs_free_mem(&block); |
1b6bf175 TT |
1891 | if (pctx->errcode) { |
1892 | pctx->str = "ext2fs_write_dir_block"; | |
1893 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
50e1e10f TT |
1894 | return 1; |
1895 | } | |
1896 | ||
1897 | /* | |
1898 | * Update the inode block count | |
1899 | */ | |
1ca1059f | 1900 | ext2fs_iblk_add_blocks(fs, &inode, 1); |
97c607b1 DW |
1901 | if (EXT2_I_SIZE(&inode) < (db->blockcnt+1) * fs->blocksize) { |
1902 | pctx->errcode = ext2fs_inode_size_set(fs, &inode, | |
1903 | (db->blockcnt+1) * fs->blocksize); | |
1904 | if (pctx->errcode) { | |
1905 | pctx->str = "ext2fs_inode_size_set"; | |
1906 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
1907 | return 1; | |
1908 | } | |
1909 | } | |
08b21301 | 1910 | e2fsck_write_inode(ctx, db->ino, &inode, "allocate_dir_block"); |
50e1e10f TT |
1911 | |
1912 | /* | |
1913 | * Finally, update the block pointers for the inode | |
1914 | */ | |
1915 | db->blk = blk; | |
2d07b3ad TT |
1916 | pctx->errcode = ext2fs_bmap2(fs, db->ino, &inode, 0, BMAP_SET, |
1917 | db->blockcnt, 0, &blk); | |
1b6bf175 TT |
1918 | if (pctx->errcode) { |
1919 | pctx->str = "ext2fs_block_iterate"; | |
1920 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
50e1e10f TT |
1921 | return 1; |
1922 | } | |
1923 | ||
1924 | return 0; | |
1925 | } |