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Commit | Line | Data |
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3839e657 TT |
1 | /* |
2 | * pass2.c --- check directory structure | |
efc6f628 | 3 | * |
21c84b71 TT |
4 | * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o |
5 | * | |
6 | * %Begin-Header% | |
7 | * This file may be redistributed under the terms of the GNU Public | |
8 | * License. | |
9 | * %End-Header% | |
efc6f628 | 10 | * |
3839e657 TT |
11 | * Pass 2 of e2fsck iterates through all active directory inodes, and |
12 | * applies to following tests to each directory entry in the directory | |
13 | * blocks in the inodes: | |
14 | * | |
15 | * - The length of the directory entry (rec_len) should be at | |
16 | * least 8 bytes, and no more than the remaining space | |
17 | * left in the directory block. | |
18 | * - The length of the name in the directory entry (name_len) | |
efc6f628 | 19 | * should be less than (rec_len - 8). |
3839e657 TT |
20 | * - The inode number in the directory entry should be within |
21 | * legal bounds. | |
22 | * - The inode number should refer to a in-use inode. | |
23 | * - The first entry should be '.', and its inode should be | |
24 | * the inode of the directory. | |
25 | * - The second entry should be '..'. | |
26 | * | |
27 | * To minimize disk seek time, the directory blocks are processed in | |
28 | * sorted order of block numbers. | |
29 | * | |
30 | * Pass 2 also collects the following information: | |
31 | * - The inode numbers of the subdirectories for each directory. | |
32 | * | |
33 | * Pass 2 relies on the following information from previous passes: | |
34 | * - The directory information collected in pass 1. | |
35 | * - The inode_used_map bitmap | |
36 | * - The inode_bad_map bitmap | |
37 | * - The inode_dir_map bitmap | |
3839e657 TT |
38 | * |
39 | * Pass 2 frees the following data structures | |
40 | * - The inode_bad_map bitmap | |
aa4115a4 | 41 | * - The inode_reg_map bitmap |
3839e657 TT |
42 | */ |
43 | ||
b969b1b8 | 44 | #define _GNU_SOURCE 1 /* get strnlen() */ |
d1154eb4 | 45 | #include "config.h" |
48e6e813 TT |
46 | #include <string.h> |
47 | ||
3839e657 | 48 | #include "e2fsck.h" |
21c84b71 | 49 | #include "problem.h" |
3dca12fb | 50 | #include "support/dict.h" |
3839e657 | 51 | |
aa4115a4 TT |
52 | #ifdef NO_INLINE_FUNCS |
53 | #define _INLINE_ | |
54 | #else | |
55 | #define _INLINE_ inline | |
56 | #endif | |
57 | ||
ad4fa466 | 58 | /* #define DX_DEBUG */ |
8fdc9985 | 59 | |
3839e657 TT |
60 | /* |
61 | * Keeps track of how many times an inode is referenced. | |
62 | */ | |
4035f40b | 63 | static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf); |
a5abfe03 DW |
64 | static int check_dir_block2(ext2_filsys fs, |
65 | struct ext2_db_entry2 *dir_blocks_info, | |
66 | void *priv_data); | |
3839e657 | 67 | static int check_dir_block(ext2_filsys fs, |
6dc64392 | 68 | struct ext2_db_entry2 *dir_blocks_info, |
54dc7ca2 | 69 | void *priv_data); |
1b6bf175 | 70 | static int allocate_dir_block(e2fsck_t ctx, |
6dc64392 | 71 | struct ext2_db_entry2 *dir_blocks_info, |
21c84b71 | 72 | char *buf, struct problem_context *pctx); |
8fdc9985 | 73 | static void clear_htree(e2fsck_t ctx, ext2_ino_t ino); |
ad4fa466 TT |
74 | static int htree_depth(struct dx_dir_info *dx_dir, |
75 | struct dx_dirblock_info *dx_db); | |
ea1959f0 | 76 | static EXT2_QSORT_TYPE special_dir_block_cmp(const void *a, const void *b); |
3839e657 | 77 | |
21c84b71 TT |
78 | struct check_dir_struct { |
79 | char *buf; | |
80 | struct problem_context pctx; | |
f8188fff | 81 | int count, max; |
1b6bf175 | 82 | e2fsck_t ctx; |
a5abfe03 DW |
83 | unsigned long long list_offset; |
84 | unsigned long long ra_entries; | |
85 | unsigned long long next_ra_off; | |
efc6f628 | 86 | }; |
21c84b71 | 87 | |
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; | |
54434927 | 100 | int b; |
ad4fa466 | 101 | int i, depth; |
8fdc9985 TT |
102 | problem_t code; |
103 | int bad_dir; | |
a5abfe03 DW |
104 | int (*check_dir_func)(ext2_filsys fs, |
105 | struct ext2_db_entry2 *dir_blocks_info, | |
106 | void *priv_data); | |
8fdc9985 | 107 | |
6d96b00d | 108 | init_resource_track(&rtrack, ctx->fs->io); |
1b6bf175 TT |
109 | clear_problem_context(&cd.pctx); |
110 | ||
3839e657 TT |
111 | #ifdef MTRACE |
112 | mtrace_print("Pass 2"); | |
113 | #endif | |
114 | ||
1b6bf175 TT |
115 | if (!(ctx->options & E2F_OPT_PREEN)) |
116 | fix_problem(ctx, PR_2_PASS_HEADER, &cd.pctx); | |
117 | ||
749f0712 TT |
118 | cd.pctx.errcode = e2fsck_setup_icount(ctx, "inode_count", |
119 | EXT2_ICOUNT_OPT_INCREMENT, | |
120 | ctx->inode_link_info, &ctx->inode_count); | |
1b6bf175 TT |
121 | if (cd.pctx.errcode) { |
122 | fix_problem(ctx, PR_2_ALLOCATE_ICOUNT, &cd.pctx); | |
08b21301 TT |
123 | ctx->flags |= E2F_FLAG_ABORT; |
124 | return; | |
21c84b71 | 125 | } |
bcf9c5d4 | 126 | buf = (char *) e2fsck_allocate_memory(ctx, 2*fs->blocksize, |
54dc7ca2 | 127 | "directory scan buffer"); |
3839e657 | 128 | |
21c84b71 TT |
129 | /* |
130 | * Set up the parent pointer for the root directory, if | |
131 | * present. (If the root directory is not present, we will | |
132 | * create it in pass 3.) | |
133 | */ | |
28db82a8 | 134 | (void) e2fsck_dir_info_set_parent(ctx, EXT2_ROOT_INO, EXT2_ROOT_INO); |
21c84b71 TT |
135 | |
136 | cd.buf = buf; | |
1b6bf175 | 137 | cd.ctx = ctx; |
f75c28de | 138 | cd.count = 1; |
6dc64392 | 139 | cd.max = ext2fs_dblist_count2(fs->dblist); |
a5abfe03 DW |
140 | cd.list_offset = 0; |
141 | cd.ra_entries = ctx->readahead_kb * 1024 / ctx->fs->blocksize; | |
142 | cd.next_ra_off = 0; | |
f75c28de TT |
143 | |
144 | if (ctx->progress) | |
145 | (void) (ctx->progress)(ctx, 2, 0, cd.max); | |
ea1959f0 | 146 | |
86f3b6cf | 147 | if (ext2fs_has_feature_dir_index(fs->super)) |
6dc64392 | 148 | ext2fs_dblist_sort2(fs->dblist, special_dir_block_cmp); |
efc6f628 | 149 | |
a5abfe03 DW |
150 | check_dir_func = cd.ra_entries ? check_dir_block2 : check_dir_block; |
151 | cd.pctx.errcode = ext2fs_dblist_iterate2(fs->dblist, check_dir_func, | |
6dc64392 | 152 | &cd); |
6267ee49 AD |
153 | if (ctx->flags & E2F_FLAG_RESTART_LATER) { |
154 | ctx->flags |= E2F_FLAG_RESTART; | |
db3d8718 | 155 | ctx->flags &= ~E2F_FLAG_RESTART_LATER; |
6267ee49 AD |
156 | } |
157 | ||
db3d8718 AD |
158 | if (ctx->flags & E2F_FLAG_RUN_RETURN) |
159 | return; | |
160 | ||
1b6bf175 TT |
161 | if (cd.pctx.errcode) { |
162 | fix_problem(ctx, PR_2_DBLIST_ITERATE, &cd.pctx); | |
08b21301 TT |
163 | ctx->flags |= E2F_FLAG_ABORT; |
164 | return; | |
7ac02a5e | 165 | } |
8fdc9985 | 166 | |
8fdc9985 | 167 | for (i=0; (dx_dir = e2fsck_dx_dir_info_iter(ctx, &i)) != 0;) { |
4cae0452 TT |
168 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK) |
169 | return; | |
d02d0195 DW |
170 | if (e2fsck_dir_will_be_rehashed(ctx, dx_dir->ino) || |
171 | dx_dir->numblocks == 0) | |
8fdc9985 TT |
172 | continue; |
173 | clear_problem_context(&pctx); | |
174 | bad_dir = 0; | |
175 | pctx.dir = dx_dir->ino; | |
176 | dx_db = dx_dir->dx_block; | |
177 | if (dx_db->flags & DX_FLAG_REFERENCED) | |
178 | dx_db->flags |= DX_FLAG_DUP_REF; | |
179 | else | |
180 | dx_db->flags |= DX_FLAG_REFERENCED; | |
181 | /* | |
182 | * Find all of the first and last leaf blocks, and | |
183 | * update their parent's min and max hash values | |
184 | */ | |
185 | for (b=0, dx_db = dx_dir->dx_block; | |
186 | b < dx_dir->numblocks; | |
187 | b++, dx_db++) { | |
188 | if ((dx_db->type != DX_DIRBLOCK_LEAF) || | |
189 | !(dx_db->flags & (DX_FLAG_FIRST | DX_FLAG_LAST))) | |
190 | continue; | |
191 | dx_parent = &dx_dir->dx_block[dx_db->parent]; | |
192 | /* | |
193 | * XXX Make sure dx_parent->min_hash > dx_db->min_hash | |
194 | */ | |
195 | if (dx_db->flags & DX_FLAG_FIRST) | |
196 | dx_parent->min_hash = dx_db->min_hash; | |
197 | /* | |
198 | * XXX Make sure dx_parent->max_hash < dx_db->max_hash | |
199 | */ | |
200 | if (dx_db->flags & DX_FLAG_LAST) | |
201 | dx_parent->max_hash = dx_db->max_hash; | |
202 | } | |
efc6f628 | 203 | |
8fdc9985 TT |
204 | for (b=0, dx_db = dx_dir->dx_block; |
205 | b < dx_dir->numblocks; | |
206 | b++, dx_db++) { | |
207 | pctx.blkcount = b; | |
208 | pctx.group = dx_db->parent; | |
209 | code = 0; | |
210 | if (!(dx_db->flags & DX_FLAG_FIRST) && | |
211 | (dx_db->min_hash < dx_db->node_min_hash)) { | |
212 | pctx.blk = dx_db->min_hash; | |
213 | pctx.blk2 = dx_db->node_min_hash; | |
214 | code = PR_2_HTREE_MIN_HASH; | |
215 | fix_problem(ctx, code, &pctx); | |
216 | bad_dir++; | |
217 | } | |
ad4fa466 TT |
218 | if (dx_db->type == DX_DIRBLOCK_LEAF) { |
219 | depth = htree_depth(dx_dir, dx_db); | |
220 | if (depth != dx_dir->depth) { | |
e5e12db9 | 221 | pctx.num = dx_dir->depth; |
ad4fa466 TT |
222 | code = PR_2_HTREE_BAD_DEPTH; |
223 | fix_problem(ctx, code, &pctx); | |
224 | bad_dir++; | |
225 | } | |
226 | } | |
8fdc9985 | 227 | /* |
efc6f628 | 228 | * This test doesn't apply for the root block |
8fdc9985 TT |
229 | * at block #0 |
230 | */ | |
231 | if (b && | |
232 | (dx_db->max_hash > dx_db->node_max_hash)) { | |
233 | pctx.blk = dx_db->max_hash; | |
234 | pctx.blk2 = dx_db->node_max_hash; | |
235 | code = PR_2_HTREE_MAX_HASH; | |
236 | fix_problem(ctx, code, &pctx); | |
503f9e7f | 237 | bad_dir++; |
8fdc9985 TT |
238 | } |
239 | if (!(dx_db->flags & DX_FLAG_REFERENCED)) { | |
240 | code = PR_2_HTREE_NOTREF; | |
241 | fix_problem(ctx, code, &pctx); | |
242 | bad_dir++; | |
243 | } else if (dx_db->flags & DX_FLAG_DUP_REF) { | |
244 | code = PR_2_HTREE_DUPREF; | |
245 | fix_problem(ctx, code, &pctx); | |
246 | bad_dir++; | |
247 | } | |
8fdc9985 TT |
248 | } |
249 | if (bad_dir && fix_problem(ctx, PR_2_HTREE_CLEAR, &pctx)) { | |
250 | clear_htree(ctx, dx_dir->ino); | |
62acaa1d | 251 | dx_dir->numblocks = 0; |
8fdc9985 | 252 | } |
8fdc9985 | 253 | } |
23f75f6e | 254 | e2fsck_free_dx_dir_info(ctx); |
149640fa | 255 | |
c4e3d3f3 | 256 | ext2fs_free_mem(&buf); |
21c84b71 TT |
257 | ext2fs_free_dblist(fs->dblist); |
258 | ||
1b6bf175 TT |
259 | if (ctx->inode_bad_map) { |
260 | ext2fs_free_inode_bitmap(ctx->inode_bad_map); | |
261 | ctx->inode_bad_map = 0; | |
3839e657 | 262 | } |
aa4115a4 TT |
263 | if (ctx->inode_reg_map) { |
264 | ext2fs_free_inode_bitmap(ctx->inode_reg_map); | |
265 | ctx->inode_reg_map = 0; | |
266 | } | |
dbff534e TT |
267 | if (ctx->encrypted_dirs) { |
268 | ext2fs_u32_list_free(ctx->encrypted_dirs); | |
269 | ctx->encrypted_dirs = 0; | |
270 | } | |
a4742691 TT |
271 | |
272 | clear_problem_context(&pctx); | |
273 | if (ctx->large_files) { | |
86f3b6cf | 274 | if (!ext2fs_has_feature_large_file(sb) && |
a4742691 | 275 | fix_problem(ctx, PR_2_FEATURE_LARGE_FILES, &pctx)) { |
86f3b6cf | 276 | ext2fs_set_feature_large_file(sb); |
0cfce7f7 | 277 | fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; |
a4742691 TT |
278 | ext2fs_mark_super_dirty(fs); |
279 | } | |
280 | if (sb->s_rev_level == EXT2_GOOD_OLD_REV && | |
281 | fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) { | |
282 | ext2fs_update_dynamic_rev(fs); | |
283 | ext2fs_mark_super_dirty(fs); | |
284 | } | |
a4742691 | 285 | } |
efc6f628 | 286 | |
9facd076 | 287 | print_resource_track(ctx, _("Pass 2"), &rtrack, fs->io); |
3839e657 TT |
288 | } |
289 | ||
ad4fa466 TT |
290 | #define MAX_DEPTH 32000 |
291 | static int htree_depth(struct dx_dir_info *dx_dir, | |
292 | struct dx_dirblock_info *dx_db) | |
293 | { | |
294 | int depth = 0; | |
295 | ||
296 | while (dx_db->type != DX_DIRBLOCK_ROOT && depth < MAX_DEPTH) { | |
297 | dx_db = &dx_dir->dx_block[dx_db->parent]; | |
298 | depth++; | |
299 | } | |
300 | return depth; | |
301 | } | |
302 | ||
0926668d TT |
303 | static int dict_de_cmp(const void *a, const void *b) |
304 | { | |
520ead37 | 305 | const struct ext2_dir_entry *de_a, *de_b; |
0926668d TT |
306 | int a_len, b_len; |
307 | ||
520ead37 | 308 | de_a = (const struct ext2_dir_entry *) a; |
70f4632b | 309 | a_len = ext2fs_dirent_name_len(de_a); |
520ead37 | 310 | de_b = (const struct ext2_dir_entry *) b; |
70f4632b | 311 | b_len = ext2fs_dirent_name_len(de_b); |
0926668d TT |
312 | |
313 | if (a_len != b_len) | |
314 | return (a_len - b_len); | |
315 | ||
baa14bd1 | 316 | return memcmp(de_a->name, de_b->name, a_len); |
0926668d | 317 | } |
ad4fa466 | 318 | |
ea1959f0 TT |
319 | /* |
320 | * This is special sort function that makes sure that directory blocks | |
321 | * with a dirblock of zero are sorted to the beginning of the list. | |
322 | * This guarantees that the root node of the htree directories are | |
323 | * processed first, so we know what hash version to use. | |
324 | */ | |
325 | static EXT2_QSORT_TYPE special_dir_block_cmp(const void *a, const void *b) | |
326 | { | |
6dc64392 VAH |
327 | const struct ext2_db_entry2 *db_a = |
328 | (const struct ext2_db_entry2 *) a; | |
329 | const struct ext2_db_entry2 *db_b = | |
330 | (const struct ext2_db_entry2 *) b; | |
ea1959f0 TT |
331 | |
332 | if (db_a->blockcnt && !db_b->blockcnt) | |
333 | return 1; | |
334 | ||
335 | if (!db_a->blockcnt && db_b->blockcnt) | |
336 | return -1; | |
efc6f628 | 337 | |
ea1959f0 TT |
338 | if (db_a->blk != db_b->blk) |
339 | return (int) (db_a->blk - db_b->blk); | |
efc6f628 | 340 | |
ea1959f0 TT |
341 | if (db_a->ino != db_b->ino) |
342 | return (int) (db_a->ino - db_b->ino); | |
343 | ||
344 | return (int) (db_a->blockcnt - db_b->blockcnt); | |
345 | } | |
346 | ||
347 | ||
3839e657 TT |
348 | /* |
349 | * Make sure the first entry in the directory is '.', and that the | |
350 | * directory entry is sane. | |
351 | */ | |
1b6bf175 | 352 | static int check_dot(e2fsck_t ctx, |
3839e657 | 353 | struct ext2_dir_entry *dirent, |
86c627ec | 354 | ext2_ino_t ino, struct problem_context *pctx) |
3839e657 TT |
355 | { |
356 | struct ext2_dir_entry *nextdir; | |
8a480350 | 357 | unsigned int rec_len, new_len; |
3c7c6d73 TT |
358 | int status = 0; |
359 | int created = 0; | |
360 | problem_t problem = 0; | |
efc6f628 | 361 | |
21c84b71 TT |
362 | if (!dirent->inode) |
363 | problem = PR_2_MISSING_DOT; | |
70f4632b | 364 | else if ((ext2fs_dirent_name_len(dirent) != 1) || |
21c84b71 TT |
365 | (dirent->name[0] != '.')) |
366 | problem = PR_2_1ST_NOT_DOT; | |
367 | else if (dirent->name[1] != '\0') | |
368 | problem = PR_2_DOT_NULL_TERM; | |
5dd77dbe | 369 | |
8a480350 | 370 | (void) ext2fs_get_rec_len(ctx->fs, dirent, &rec_len); |
21c84b71 | 371 | if (problem) { |
1b6bf175 | 372 | if (fix_problem(ctx, problem, pctx)) { |
5dd77dbe TT |
373 | if (rec_len < 12) |
374 | rec_len = dirent->rec_len = 12; | |
3839e657 | 375 | dirent->inode = ino; |
70f4632b JK |
376 | ext2fs_dirent_set_name_len(dirent, 1); |
377 | ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN); | |
3839e657 | 378 | dirent->name[0] = '.'; |
21c84b71 | 379 | dirent->name[1] = '\0'; |
3839e657 TT |
380 | status = 1; |
381 | created = 1; | |
3839e657 TT |
382 | } |
383 | } | |
3839e657 | 384 | if (dirent->inode != ino) { |
1b6bf175 | 385 | if (fix_problem(ctx, PR_2_BAD_INODE_DOT, pctx)) { |
3839e657 TT |
386 | dirent->inode = ino; |
387 | status = 1; | |
21c84b71 | 388 | } |
3839e657 | 389 | } |
5dd77dbe TT |
390 | if (rec_len > 12) { |
391 | new_len = rec_len - 12; | |
3839e657 | 392 | if (new_len > 12) { |
3839e657 | 393 | if (created || |
f8188fff | 394 | fix_problem(ctx, PR_2_SPLIT_DOT, pctx)) { |
3839e657 TT |
395 | nextdir = (struct ext2_dir_entry *) |
396 | ((char *) dirent + 12); | |
397 | dirent->rec_len = 12; | |
8a480350 TT |
398 | (void) ext2fs_set_rec_len(ctx->fs, new_len, |
399 | nextdir); | |
3839e657 | 400 | nextdir->inode = 0; |
70f4632b JK |
401 | ext2fs_dirent_set_name_len(nextdir, 0); |
402 | ext2fs_dirent_set_file_type(nextdir, | |
403 | EXT2_FT_UNKNOWN); | |
3839e657 TT |
404 | status = 1; |
405 | } | |
406 | } | |
407 | } | |
408 | return status; | |
409 | } | |
410 | ||
411 | /* | |
412 | * Make sure the second entry in the directory is '..', and that the | |
413 | * directory entry is sane. We do not check the inode number of '..' | |
414 | * here; this gets done in pass 3. | |
415 | */ | |
1b6bf175 | 416 | static int check_dotdot(e2fsck_t ctx, |
3839e657 | 417 | struct ext2_dir_entry *dirent, |
28db82a8 | 418 | ext2_ino_t ino, struct problem_context *pctx) |
3839e657 | 419 | { |
3c7c6d73 | 420 | problem_t problem = 0; |
cf5301d7 | 421 | unsigned int rec_len; |
efc6f628 | 422 | |
21c84b71 TT |
423 | if (!dirent->inode) |
424 | problem = PR_2_MISSING_DOT_DOT; | |
70f4632b | 425 | else if ((ext2fs_dirent_name_len(dirent) != 2) || |
21c84b71 TT |
426 | (dirent->name[0] != '.') || |
427 | (dirent->name[1] != '.')) | |
428 | problem = PR_2_2ND_NOT_DOT_DOT; | |
429 | else if (dirent->name[2] != '\0') | |
430 | problem = PR_2_DOT_DOT_NULL_TERM; | |
431 | ||
8a480350 | 432 | (void) ext2fs_get_rec_len(ctx->fs, dirent, &rec_len); |
21c84b71 | 433 | if (problem) { |
1b6bf175 | 434 | if (fix_problem(ctx, problem, pctx)) { |
5dd77dbe | 435 | if (rec_len < 12) |
21c84b71 | 436 | dirent->rec_len = 12; |
3839e657 TT |
437 | /* |
438 | * Note: we don't have the parent inode just | |
439 | * yet, so we will fill it in with the root | |
440 | * inode. This will get fixed in pass 3. | |
441 | */ | |
442 | dirent->inode = EXT2_ROOT_INO; | |
70f4632b JK |
443 | ext2fs_dirent_set_name_len(dirent, 2); |
444 | ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN); | |
3839e657 TT |
445 | dirent->name[0] = '.'; |
446 | dirent->name[1] = '.'; | |
21c84b71 | 447 | dirent->name[2] = '\0'; |
3839e657 | 448 | return 1; |
efc6f628 | 449 | } |
3839e657 TT |
450 | return 0; |
451 | } | |
28db82a8 TT |
452 | if (e2fsck_dir_info_set_dotdot(ctx, ino, dirent->inode)) { |
453 | fix_problem(ctx, PR_2_NO_DIRINFO, pctx); | |
454 | return -1; | |
455 | } | |
3839e657 TT |
456 | return 0; |
457 | } | |
458 | ||
459 | /* | |
460 | * Check to make sure a directory entry doesn't contain any illegal | |
461 | * characters. | |
462 | */ | |
1b6bf175 | 463 | static int check_name(e2fsck_t ctx, |
3839e657 | 464 | struct ext2_dir_entry *dirent, |
54434927 | 465 | struct problem_context *pctx) |
3839e657 TT |
466 | { |
467 | int i; | |
468 | int fixup = -1; | |
3839e657 | 469 | int ret = 0; |
efc6f628 | 470 | |
70f4632b | 471 | for ( i = 0; i < ext2fs_dirent_name_len(dirent); i++) { |
dbff534e TT |
472 | if (dirent->name[i] != '/' && dirent->name[i] != '\0') |
473 | continue; | |
dbff534e TT |
474 | if (fixup < 0) |
475 | fixup = fix_problem(ctx, PR_2_BAD_NAME, pctx); | |
476 | if (fixup == 0) | |
477 | return 0; | |
478 | dirent->name[i] = '.'; | |
479 | ret = 1; | |
3839e657 TT |
480 | } |
481 | return ret; | |
482 | } | |
483 | ||
e3dd5c6f TT |
484 | static int encrypted_check_name(e2fsck_t ctx, |
485 | struct ext2_dir_entry *dirent, | |
486 | struct problem_context *pctx) | |
487 | { | |
488 | if (ext2fs_dirent_name_len(dirent) < EXT4_CRYPTO_BLOCK_SIZE) { | |
489 | if (fix_problem(ctx, PR_2_BAD_ENCRYPTED_NAME, pctx)) { | |
490 | dirent->inode = 0; | |
491 | return 1; | |
492 | } | |
493 | ext2fs_unmark_valid(ctx->fs); | |
494 | } | |
495 | return 0; | |
496 | } | |
497 | ||
aa4115a4 TT |
498 | /* |
499 | * Check the directory filetype (if present) | |
500 | */ | |
501 | static _INLINE_ int check_filetype(e2fsck_t ctx, | |
54434927 TT |
502 | struct ext2_dir_entry *dirent, |
503 | ext2_ino_t dir_ino EXT2FS_ATTR((unused)), | |
504 | struct problem_context *pctx) | |
aa4115a4 | 505 | { |
70f4632b | 506 | int filetype = ext2fs_dirent_file_type(dirent); |
aa4115a4 TT |
507 | int should_be = EXT2_FT_UNKNOWN; |
508 | struct ext2_inode inode; | |
509 | ||
86f3b6cf | 510 | if (!ext2fs_has_feature_filetype(ctx->fs->super)) { |
7847c1d4 TT |
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); |
86f3b6cf | 600 | if (ext2fs_has_feature_metadata_csum(fs->super)) |
07307114 DW |
601 | csum_size = sizeof(struct ext2_dx_tail); |
602 | expect_limit = (fs->blocksize - | |
603 | (csum_size + ((char *) ent - block_buf))) / | |
604 | sizeof(struct ext2_dx_entry); | |
8132d840 TT |
605 | if (ext2fs_le16_to_cpu(limit->limit) != expect_limit) { |
606 | cd->pctx.num = ext2fs_le16_to_cpu(limit->limit); | |
ad4fa466 TT |
607 | if (fix_problem(cd->ctx, PR_2_HTREE_BAD_LIMIT, &cd->pctx)) |
608 | goto clear_and_exit; | |
609 | } | |
8132d840 TT |
610 | if (count > expect_limit) { |
611 | cd->pctx.num = count; | |
ad4fa466 TT |
612 | if (fix_problem(cd->ctx, PR_2_HTREE_BAD_COUNT, &cd->pctx)) |
613 | goto clear_and_exit; | |
614 | count = expect_limit; | |
615 | } | |
efc6f628 | 616 | |
ad4fa466 TT |
617 | for (i=0; i < count; i++) { |
618 | prev_hash = hash; | |
8132d840 | 619 | hash = i ? (ext2fs_le32_to_cpu(ent[i].hash) & ~1) : 0; |
8fdc9985 | 620 | #ifdef DX_DEBUG |
8deb80a5 | 621 | printf("Entry #%d: Hash 0x%08x, block %u\n", i, |
8132d840 | 622 | hash, ext2fs_le32_to_cpu(ent[i].block)); |
8fdc9985 | 623 | #endif |
8132d840 | 624 | blk = ext2fs_le32_to_cpu(ent[i].block) & 0x0ffffff; |
8fdc9985 | 625 | /* Check to make sure the block is valid */ |
977ac873 | 626 | if (blk >= (blk_t) dx_dir->numblocks) { |
b7a00563 | 627 | cd->pctx.blk = blk; |
8fdc9985 | 628 | if (fix_problem(cd->ctx, PR_2_HTREE_BADBLK, |
ad4fa466 TT |
629 | &cd->pctx)) |
630 | goto clear_and_exit; | |
977ac873 | 631 | continue; |
8fdc9985 | 632 | } |
ad4fa466 TT |
633 | if (hash < prev_hash && |
634 | fix_problem(cd->ctx, PR_2_HTREE_HASH_ORDER, &cd->pctx)) | |
635 | goto clear_and_exit; | |
8fdc9985 TT |
636 | dx_db = &dx_dir->dx_block[blk]; |
637 | if (dx_db->flags & DX_FLAG_REFERENCED) { | |
638 | dx_db->flags |= DX_FLAG_DUP_REF; | |
639 | } else { | |
640 | dx_db->flags |= DX_FLAG_REFERENCED; | |
641 | dx_db->parent = db->blockcnt; | |
642 | } | |
643 | if (hash < min_hash) | |
644 | min_hash = hash; | |
645 | if (hash > max_hash) | |
646 | max_hash = hash; | |
647 | dx_db->node_min_hash = hash; | |
8132d840 | 648 | if ((i+1) < count) |
efc6f628 | 649 | dx_db->node_max_hash = |
8132d840 | 650 | ext2fs_le32_to_cpu(ent[i+1].hash) & ~1; |
8fdc9985 TT |
651 | else { |
652 | dx_db->node_max_hash = 0xfffffffe; | |
653 | dx_db->flags |= DX_FLAG_LAST; | |
654 | } | |
655 | if (i == 0) | |
656 | dx_db->flags |= DX_FLAG_FIRST; | |
657 | } | |
658 | #ifdef DX_DEBUG | |
659 | printf("Blockcnt = %d, min hash 0x%08x, max hash 0x%08x\n", | |
660 | db->blockcnt, min_hash, max_hash); | |
661 | #endif | |
662 | dx_db = &dx_dir->dx_block[db->blockcnt]; | |
663 | dx_db->min_hash = min_hash; | |
664 | dx_db->max_hash = max_hash; | |
ad4fa466 TT |
665 | return; |
666 | ||
667 | clear_and_exit: | |
668 | clear_htree(cd->ctx, cd->pctx.ino); | |
669 | dx_dir->numblocks = 0; | |
07307114 | 670 | e2fsck_rehash_dir_later(cd->ctx, cd->pctx.ino); |
8fdc9985 | 671 | } |
aa4115a4 | 672 | |
e70ae99e TT |
673 | /* |
674 | * Given a busted directory, try to salvage it somehow. | |
efc6f628 | 675 | * |
e70ae99e | 676 | */ |
ad4fa466 | 677 | static void salvage_directory(ext2_filsys fs, |
e70ae99e TT |
678 | struct ext2_dir_entry *dirent, |
679 | struct ext2_dir_entry *prev, | |
82ad476d DW |
680 | unsigned int *offset, |
681 | unsigned int block_len) | |
e70ae99e TT |
682 | { |
683 | char *cp = (char *) dirent; | |
8a480350 TT |
684 | int left; |
685 | unsigned int rec_len, prev_rec_len; | |
4a3dc1f0 | 686 | unsigned int name_len; |
e70ae99e | 687 | |
4a3dc1f0 DW |
688 | /* |
689 | * If the space left for the entry is too small to be an entry, | |
690 | * we can't access dirent's fields, so plumb in the values needed | |
691 | * so that the previous entry absorbs this one. | |
692 | */ | |
693 | if (block_len - *offset < EXT2_DIR_ENTRY_HEADER_LEN) { | |
694 | name_len = 0; | |
695 | rec_len = block_len - *offset; | |
696 | } else { | |
697 | name_len = ext2fs_dirent_name_len(dirent); | |
698 | (void) ext2fs_get_rec_len(fs, dirent, &rec_len); | |
699 | } | |
82ad476d | 700 | left = block_len - *offset - rec_len; |
5dd77dbe | 701 | |
e70ae99e TT |
702 | /* |
703 | * Special case of directory entry of size 8: copy what's left | |
704 | * of the directory block up to cover up the invalid hole. | |
705 | */ | |
4a3dc1f0 DW |
706 | if ((left >= 12) && (rec_len == EXT2_DIR_ENTRY_HEADER_LEN)) { |
707 | memmove(cp, cp+EXT2_DIR_ENTRY_HEADER_LEN, left); | |
708 | memset(cp + left, 0, EXT2_DIR_ENTRY_HEADER_LEN); | |
ad4fa466 TT |
709 | return; |
710 | } | |
711 | /* | |
712 | * If the directory entry overruns the end of the directory | |
713 | * block, and the name is small enough to fit, then adjust the | |
714 | * record length. | |
715 | */ | |
716 | if ((left < 0) && | |
4a3dc1f0 DW |
717 | ((int) rec_len + left > EXT2_DIR_ENTRY_HEADER_LEN) && |
718 | ((int) name_len + EXT2_DIR_ENTRY_HEADER_LEN <= (int) rec_len + left) && | |
ad4fa466 TT |
719 | dirent->inode <= fs->super->s_inodes_count && |
720 | strnlen(dirent->name, name_len) == name_len) { | |
8a480350 | 721 | (void) ext2fs_set_rec_len(fs, (int) rec_len + left, dirent); |
ad4fa466 | 722 | return; |
e70ae99e TT |
723 | } |
724 | /* | |
575307cc KS |
725 | * If the record length of the directory entry is a multiple |
726 | * of four, and not too big, such that it is valid, let the | |
727 | * previous directory entry absorb the invalid one. | |
e70ae99e | 728 | */ |
5dd77dbe | 729 | if (prev && rec_len && (rec_len % 4) == 0 && |
82ad476d | 730 | (*offset + rec_len <= block_len)) { |
8a480350 TT |
731 | (void) ext2fs_get_rec_len(fs, prev, &prev_rec_len); |
732 | prev_rec_len += rec_len; | |
733 | (void) ext2fs_set_rec_len(fs, prev_rec_len, prev); | |
5dd77dbe | 734 | *offset += rec_len; |
ad4fa466 | 735 | return; |
e70ae99e TT |
736 | } |
737 | /* | |
738 | * Default salvage method --- kill all of the directory | |
739 | * entries for the rest of the block. We will either try to | |
740 | * absorb it into the previous directory entry, or create a | |
741 | * new empty directory entry the rest of the directory block. | |
742 | */ | |
743 | if (prev) { | |
8a480350 | 744 | (void) ext2fs_get_rec_len(fs, prev, &prev_rec_len); |
82ad476d | 745 | prev_rec_len += block_len - *offset; |
8a480350 | 746 | (void) ext2fs_set_rec_len(fs, prev_rec_len, prev); |
ad4fa466 | 747 | *offset = fs->blocksize; |
e70ae99e | 748 | } else { |
82ad476d | 749 | rec_len = block_len - *offset; |
8a480350 | 750 | (void) ext2fs_set_rec_len(fs, rec_len, dirent); |
70f4632b JK |
751 | ext2fs_dirent_set_name_len(dirent, 0); |
752 | ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN); | |
e70ae99e | 753 | dirent->inode = 0; |
e70ae99e | 754 | } |
e70ae99e TT |
755 | } |
756 | ||
d3eb1502 | 757 | #define NEXT_DIRENT(d) ((void *)((char *)(d) + (d)->rec_len)) |
17641bf2 DW |
758 | static errcode_t insert_dirent_tail(ext2_filsys fs, void *dirbuf) |
759 | { | |
760 | struct ext2_dir_entry *d; | |
761 | void *top; | |
762 | struct ext2_dir_entry_tail *t; | |
17641bf2 DW |
763 | |
764 | d = dirbuf; | |
765 | top = EXT2_DIRENT_TAIL(dirbuf, fs->blocksize); | |
766 | ||
d3eb1502 DW |
767 | while (d->rec_len && !(d->rec_len & 0x3) && NEXT_DIRENT(d) <= top) |
768 | d = NEXT_DIRENT(d); | |
17641bf2 DW |
769 | |
770 | if (d != top) { | |
62f9bd0e | 771 | unsigned int min_size = EXT2_DIR_REC_LEN( |
17641bf2 | 772 | ext2fs_dirent_name_len(dirbuf)); |
62f9bd0e | 773 | if (min_size > (char *)top - (char *)d) |
17641bf2 | 774 | return EXT2_ET_DIR_NO_SPACE_FOR_CSUM; |
62f9bd0e | 775 | d->rec_len = (char *)top - (char *)d; |
17641bf2 DW |
776 | } |
777 | ||
778 | t = (struct ext2_dir_entry_tail *)top; | |
779 | if (t->det_reserved_zero1 || | |
780 | t->det_rec_len != sizeof(struct ext2_dir_entry_tail) || | |
781 | t->det_reserved_name_len != EXT2_DIR_NAME_LEN_CSUM) | |
782 | ext2fs_initialize_dirent_tail(fs, t); | |
783 | ||
784 | return 0; | |
785 | } | |
d3eb1502 | 786 | #undef NEXT_DIRENT |
17641bf2 | 787 | |
52b0c6e6 DW |
788 | static errcode_t fix_inline_dir_size(e2fsck_t ctx, ext2_ino_t ino, |
789 | size_t *inline_data_size, | |
790 | struct problem_context *pctx, | |
791 | char *buf) | |
792 | { | |
793 | ext2_filsys fs = ctx->fs; | |
794 | struct ext2_inode inode; | |
795 | size_t new_size, old_size; | |
796 | errcode_t retval; | |
797 | ||
798 | old_size = *inline_data_size; | |
0ac4b397 DW |
799 | /* |
800 | * If there's not enough bytes to start the "second" dir block | |
801 | * (in the EA space) then truncate everything to the first block. | |
802 | */ | |
803 | if (old_size > EXT4_MIN_INLINE_DATA_SIZE && | |
804 | old_size < EXT4_MIN_INLINE_DATA_SIZE + | |
805 | EXT2_DIR_REC_LEN(1)) { | |
806 | old_size = EXT4_MIN_INLINE_DATA_SIZE; | |
807 | new_size = old_size; | |
808 | } else | |
809 | /* Increase to the next four-byte boundary for salvaging */ | |
810 | new_size = old_size + (4 - (old_size & 3)); | |
52b0c6e6 DW |
811 | memset(buf + old_size, 0, new_size - old_size); |
812 | retval = ext2fs_inline_data_set(fs, ino, 0, buf, new_size); | |
813 | if (retval == EXT2_ET_INLINE_DATA_NO_SPACE) { | |
0ac4b397 | 814 | /* Or we can't, so truncate. */ |
52b0c6e6 DW |
815 | new_size -= 4; |
816 | retval = ext2fs_inline_data_set(fs, ino, 0, buf, new_size); | |
817 | if (retval) { | |
818 | if (fix_problem(ctx, PR_2_FIX_INLINE_DIR_FAILED, | |
819 | pctx)) { | |
820 | new_size = 0; | |
821 | goto write_inode; | |
822 | } | |
823 | goto err; | |
824 | } | |
825 | } else if (retval) { | |
826 | if (fix_problem(ctx, PR_2_FIX_INLINE_DIR_FAILED, | |
827 | pctx)) { | |
828 | new_size = 0; | |
829 | goto write_inode; | |
830 | } | |
831 | goto err; | |
832 | } | |
833 | ||
834 | write_inode: | |
835 | retval = ext2fs_read_inode(fs, ino, &inode); | |
836 | if (retval) | |
837 | goto err; | |
838 | ||
839 | retval = ext2fs_inode_size_set(fs, &inode, new_size); | |
840 | if (retval) | |
841 | goto err; | |
842 | if (new_size == 0) | |
843 | inode.i_flags &= ~EXT4_INLINE_DATA_FL; | |
844 | retval = ext2fs_write_inode(fs, ino, &inode); | |
845 | if (retval) | |
846 | goto err; | |
847 | *inline_data_size = new_size; | |
848 | ||
849 | err: | |
850 | return retval; | |
851 | } | |
852 | ||
a5abfe03 DW |
853 | static int check_dir_block2(ext2_filsys fs, |
854 | struct ext2_db_entry2 *db, | |
855 | void *priv_data) | |
856 | { | |
857 | int err; | |
858 | struct check_dir_struct *cd = priv_data; | |
859 | ||
860 | if (cd->ra_entries && cd->list_offset >= cd->next_ra_off) { | |
861 | err = e2fsck_readahead_dblist(fs, | |
862 | E2FSCK_RA_DBLIST_IGNORE_BLOCKCNT, | |
863 | fs->dblist, | |
864 | cd->list_offset + cd->ra_entries / 8, | |
865 | cd->ra_entries); | |
866 | if (err) | |
867 | cd->ra_entries = 0; | |
868 | cd->next_ra_off = cd->list_offset + (cd->ra_entries * 7 / 8); | |
869 | } | |
870 | ||
871 | err = check_dir_block(fs, db, priv_data); | |
872 | cd->list_offset++; | |
873 | return err; | |
874 | } | |
875 | ||
3839e657 | 876 | static int check_dir_block(ext2_filsys fs, |
6dc64392 | 877 | struct ext2_db_entry2 *db, |
54dc7ca2 | 878 | void *priv_data) |
3839e657 | 879 | { |
8fdc9985 | 880 | struct dx_dir_info *dx_dir; |
8fdc9985 | 881 | struct dx_dirblock_info *dx_db = 0; |
6582dbe9 | 882 | struct ext2_dir_entry *dirent, *prev, dot, dotdot; |
8fdc9985 | 883 | ext2_dirhash_t hash; |
54434927 | 884 | unsigned int offset = 0; |
3839e657 | 885 | int dir_modified = 0; |
21c84b71 | 886 | int dot_state; |
03fa6f8a | 887 | unsigned int rec_len; |
6dc64392 | 888 | blk64_t block_nr = db->blk; |
86c627ec | 889 | ext2_ino_t ino = db->ino; |
28db82a8 | 890 | ext2_ino_t subdir_parent; |
21c84b71 | 891 | __u16 links; |
54dc7ca2 | 892 | struct check_dir_struct *cd; |
0ac4b397 | 893 | char *buf, *ibuf; |
1b6bf175 | 894 | e2fsck_t ctx; |
3c7c6d73 | 895 | problem_t problem; |
ea1959f0 | 896 | struct ext2_dx_root_info *root; |
e8254bfd | 897 | struct ext2_dx_countlimit *limit; |
0926668d TT |
898 | static dict_t de_dict; |
899 | struct problem_context pctx; | |
900 | int dups_found = 0; | |
28db82a8 | 901 | int ret; |
e8548796 | 902 | int dx_csum_size = 0, de_csum_size = 0; |
81683c6a | 903 | int failed_csum = 0; |
e8548796 | 904 | int is_leaf = 1; |
24997f1c | 905 | size_t inline_data_size = 0; |
6582dbe9 | 906 | int filetype = 0; |
62ad2480 | 907 | int encrypted = 0; |
0ac4b397 | 908 | size_t max_block_size; |
1b6bf175 | 909 | |
54dc7ca2 | 910 | cd = (struct check_dir_struct *) priv_data; |
0ac4b397 | 911 | ibuf = buf = cd->buf; |
1b6bf175 | 912 | ctx = cd->ctx; |
f8188fff | 913 | |
db3d8718 | 914 | if (ctx->flags & E2F_FLAG_RUN_RETURN) |
4cae0452 | 915 | return DIRENT_ABORT; |
efc6f628 | 916 | |
4cae0452 TT |
917 | if (ctx->progress && (ctx->progress)(ctx, 2, cd->count++, cd->max)) |
918 | return DIRENT_ABORT; | |
efc6f628 | 919 | |
86f3b6cf | 920 | if (ext2fs_has_feature_metadata_csum(fs->super)) { |
07307114 | 921 | dx_csum_size = sizeof(struct ext2_dx_tail); |
e8548796 DW |
922 | de_csum_size = sizeof(struct ext2_dir_entry_tail); |
923 | } | |
07307114 | 924 | |
86f3b6cf | 925 | if (ext2fs_has_feature_filetype(fs->super)) |
6582dbe9 ZL |
926 | filetype = EXT2_FT_DIR << 8; |
927 | ||
3839e657 | 928 | /* |
efc6f628 | 929 | * Make sure the inode is still in use (could have been |
3839e657 TT |
930 | * deleted in the duplicate/bad blocks pass. |
931 | */ | |
c5d2f50d | 932 | if (!(ext2fs_test_inode_bitmap2(ctx->inode_used_map, ino))) |
3839e657 | 933 | return 0; |
50e1e10f | 934 | |
21c84b71 TT |
935 | cd->pctx.ino = ino; |
936 | cd->pctx.blk = block_nr; | |
937 | cd->pctx.blkcount = db->blockcnt; | |
938 | cd->pctx.ino2 = 0; | |
939 | cd->pctx.dirent = 0; | |
940 | cd->pctx.num = 0; | |
941 | ||
86f3b6cf | 942 | if (ext2fs_has_feature_inline_data(fs->super)) { |
6582dbe9 ZL |
943 | errcode_t ec; |
944 | ||
945 | ec = ext2fs_inline_data_size(fs, ino, &inline_data_size); | |
946 | if (ec && ec != EXT2_ET_NO_INLINE_DATA) | |
947 | return DIRENT_ABORT; | |
948 | } | |
949 | ||
950 | if (db->blk == 0 && !inline_data_size) { | |
1b6bf175 | 951 | if (allocate_dir_block(ctx, db, buf, &cd->pctx)) |
50e1e10f TT |
952 | return 0; |
953 | block_nr = db->blk; | |
954 | } | |
efc6f628 | 955 | |
3839e657 TT |
956 | if (db->blockcnt) |
957 | dot_state = 2; | |
958 | else | |
959 | dot_state = 0; | |
960 | ||
0926668d TT |
961 | if (ctx->dirs_to_hash && |
962 | ext2fs_u32_list_test(ctx->dirs_to_hash, ino)) | |
963 | dups_found++; | |
964 | ||
3839e657 | 965 | #if 0 |
f3db3566 | 966 | printf("In process_dir_block block %lu, #%d, inode %lu\n", block_nr, |
3839e657 TT |
967 | db->blockcnt, ino); |
968 | #endif | |
efc6f628 | 969 | |
f85a9ae6 | 970 | ehandler_operation(_("reading directory block")); |
cd971869 | 971 | if (inline_data_size) { |
4a3dc1f0 | 972 | memset(buf, 0, fs->blocksize - inline_data_size); |
6582dbe9 | 973 | cd->pctx.errcode = ext2fs_inline_data_get(fs, ino, 0, buf, 0); |
cd971869 DW |
974 | if (cd->pctx.errcode) |
975 | goto inline_read_fail; | |
976 | #ifdef WORDS_BIGENDIAN | |
0ac4b397 DW |
977 | if (db->blockcnt) |
978 | goto skip_first_read_swab; | |
cd971869 DW |
979 | *((__u32 *)buf) = ext2fs_le32_to_cpu(*((__u32 *)buf)); |
980 | cd->pctx.errcode = ext2fs_dirent_swab_in2(fs, | |
981 | buf + EXT4_INLINE_DATA_DOTDOT_SIZE, | |
0ac4b397 DW |
982 | EXT4_MIN_INLINE_DATA_SIZE - EXT4_INLINE_DATA_DOTDOT_SIZE, |
983 | 0); | |
984 | if (cd->pctx.errcode) | |
985 | goto inline_read_fail; | |
986 | skip_first_read_swab: | |
987 | if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE || | |
988 | !db->blockcnt) | |
989 | goto inline_read_fail; | |
990 | cd->pctx.errcode = ext2fs_dirent_swab_in2(fs, | |
991 | buf + EXT4_MIN_INLINE_DATA_SIZE, | |
992 | inline_data_size - EXT4_MIN_INLINE_DATA_SIZE, | |
cd971869 DW |
993 | 0); |
994 | #endif | |
995 | } else | |
6582dbe9 ZL |
996 | cd->pctx.errcode = ext2fs_read_dir_block4(fs, block_nr, |
997 | buf, 0, ino); | |
cd971869 | 998 | inline_read_fail: |
52b0c6e6 DW |
999 | pctx.ino = ino; |
1000 | pctx.num = inline_data_size; | |
0ac4b397 DW |
1001 | if (((inline_data_size & 3) || |
1002 | (inline_data_size > EXT4_MIN_INLINE_DATA_SIZE && | |
1003 | inline_data_size < EXT4_MIN_INLINE_DATA_SIZE + | |
1004 | EXT2_DIR_REC_LEN(1))) && | |
52b0c6e6 DW |
1005 | fix_problem(ctx, PR_2_BAD_INLINE_DIR_SIZE, &pctx)) { |
1006 | errcode_t err = fix_inline_dir_size(ctx, ino, | |
1007 | &inline_data_size, &pctx, | |
1008 | buf); | |
1009 | if (err) | |
1010 | return DIRENT_ABORT; | |
1011 | ||
1012 | } | |
e94bc631 | 1013 | ehandler_operation(0); |
b9852cd8 TT |
1014 | if (cd->pctx.errcode == EXT2_ET_DIR_CORRUPTED) |
1015 | cd->pctx.errcode = 0; /* We'll handle this ourselves */ | |
81683c6a DW |
1016 | else if (cd->pctx.errcode == EXT2_ET_DIR_CSUM_INVALID) { |
1017 | cd->pctx.errcode = 0; /* We'll handle this ourselves */ | |
1018 | failed_csum = 1; | |
1019 | } | |
1b6bf175 | 1020 | if (cd->pctx.errcode) { |
e8548796 | 1021 | char *buf2; |
08b21301 TT |
1022 | if (!fix_problem(ctx, PR_2_READ_DIRBLOCK, &cd->pctx)) { |
1023 | ctx->flags |= E2F_FLAG_ABORT; | |
1024 | return DIRENT_ABORT; | |
1025 | } | |
e8548796 DW |
1026 | ext2fs_new_dir_block(fs, db->blockcnt == 0 ? ino : 0, |
1027 | EXT2_ROOT_INO, &buf2); | |
1028 | memcpy(buf, buf2, fs->blocksize); | |
1029 | ext2fs_free_mem(&buf2); | |
3839e657 | 1030 | } |
8fdc9985 | 1031 | dx_dir = e2fsck_get_dx_dir_info(ctx, ino); |
62acaa1d | 1032 | if (dx_dir && dx_dir->numblocks) { |
8fdc9985 | 1033 | if (db->blockcnt >= dx_dir->numblocks) { |
ea9085c7 | 1034 | pctx.dir = ino; |
efc6f628 | 1035 | if (fix_problem(ctx, PR_2_UNEXPECTED_HTREE_BLOCK, |
d45edec0 TT |
1036 | &pctx)) { |
1037 | clear_htree(ctx, ino); | |
1038 | dx_dir->numblocks = 0; | |
1039 | dx_db = 0; | |
1040 | goto out_htree; | |
1041 | } | |
1042 | fatal_error(ctx, _("Can not continue.")); | |
8fdc9985 TT |
1043 | } |
1044 | dx_db = &dx_dir->dx_block[db->blockcnt]; | |
1045 | dx_db->type = DX_DIRBLOCK_LEAF; | |
1046 | dx_db->phys = block_nr; | |
1047 | dx_db->min_hash = ~0; | |
1048 | dx_db->max_hash = 0; | |
efc6f628 | 1049 | |
8fdc9985 | 1050 | dirent = (struct ext2_dir_entry *) buf; |
8a480350 | 1051 | (void) ext2fs_get_rec_len(fs, dirent, &rec_len); |
e8254bfd | 1052 | limit = (struct ext2_dx_countlimit *) (buf+8); |
8fdc9985 | 1053 | if (db->blockcnt == 0) { |
ea1959f0 | 1054 | root = (struct ext2_dx_root_info *) (buf + 24); |
8fdc9985 TT |
1055 | dx_db->type = DX_DIRBLOCK_ROOT; |
1056 | dx_db->flags |= DX_FLAG_FIRST | DX_FLAG_LAST; | |
ea1959f0 TT |
1057 | if ((root->reserved_zero || |
1058 | root->info_length < 8 || | |
1059 | root->indirect_levels > 1) && | |
1060 | fix_problem(ctx, PR_2_HTREE_BAD_ROOT, &cd->pctx)) { | |
1061 | clear_htree(ctx, ino); | |
1062 | dx_dir->numblocks = 0; | |
1063 | dx_db = 0; | |
f77704e4 | 1064 | } |
ea1959f0 | 1065 | dx_dir->hashversion = root->hash_version; |
f77704e4 TT |
1066 | if ((dx_dir->hashversion <= EXT2_HASH_TEA) && |
1067 | (fs->super->s_flags & EXT2_FLAGS_UNSIGNED_HASH)) | |
1068 | dx_dir->hashversion += 3; | |
ad4fa466 | 1069 | dx_dir->depth = root->indirect_levels + 1; |
8fdc9985 | 1070 | } else if ((dirent->inode == 0) && |
5dd77dbe | 1071 | (rec_len == fs->blocksize) && |
70f4632b | 1072 | (ext2fs_dirent_name_len(dirent) == 0) && |
efc6f628 | 1073 | (ext2fs_le16_to_cpu(limit->limit) == |
07307114 | 1074 | ((fs->blocksize - (8 + dx_csum_size)) / |
8132d840 | 1075 | sizeof(struct ext2_dx_entry)))) |
8fdc9985 | 1076 | dx_db->type = DX_DIRBLOCK_NODE; |
95eca2e9 | 1077 | is_leaf = (dx_db->type == DX_DIRBLOCK_LEAF); |
8fdc9985 | 1078 | } |
d45edec0 | 1079 | out_htree: |
3839e657 | 1080 | |
7f43a46f DW |
1081 | /* Leaf node with no space for csum? Rebuild dirs in pass 3A. */ |
1082 | if (is_leaf && !inline_data_size && failed_csum && | |
1083 | !ext2fs_dirent_has_tail(fs, (struct ext2_dir_entry *)buf)) { | |
1084 | de_csum_size = 0; | |
d02d0195 DW |
1085 | if (e2fsck_dir_will_be_rehashed(ctx, ino)) { |
1086 | failed_csum = 0; | |
1087 | goto skip_checksum; | |
1088 | } | |
1089 | if (!fix_problem(cd->ctx, PR_2_LEAF_NODE_MISSING_CSUM, | |
7f43a46f | 1090 | &cd->pctx)) |
e8548796 | 1091 | goto skip_checksum; |
7f43a46f | 1092 | e2fsck_rehash_dir_later(ctx, ino); |
d02d0195 | 1093 | failed_csum = 0; |
7f43a46f | 1094 | goto skip_checksum; |
e8548796 DW |
1095 | } |
1096 | /* htree nodes don't use fake dirents to store checksums */ | |
1097 | if (!is_leaf) | |
1098 | de_csum_size = 0; | |
1099 | ||
1100 | skip_checksum: | |
0ac4b397 DW |
1101 | if (inline_data_size) { |
1102 | if (db->blockcnt) { | |
1103 | buf += EXT4_MIN_INLINE_DATA_SIZE; | |
1104 | max_block_size = inline_data_size - EXT4_MIN_INLINE_DATA_SIZE; | |
1105 | /* Zero-length second block, just exit */ | |
1106 | if (max_block_size == 0) | |
1107 | return 0; | |
1108 | } else { | |
1109 | max_block_size = EXT4_MIN_INLINE_DATA_SIZE; | |
1110 | } | |
1111 | } else | |
1112 | max_block_size = fs->blocksize - de_csum_size; | |
1113 | ||
62ad2480 TT |
1114 | if (ctx->encrypted_dirs) |
1115 | encrypted = ext2fs_u32_list_test(ctx->encrypted_dirs, ino); | |
1116 | ||
0926668d | 1117 | dict_init(&de_dict, DICTCOUNT_T_MAX, dict_de_cmp); |
e70ae99e | 1118 | prev = 0; |
3839e657 | 1119 | do { |
3971bfe8 | 1120 | dgrp_t group; |
49a7360b | 1121 | ext2_ino_t first_unused_inode; |
70f4632b | 1122 | unsigned int name_len; |
49a7360b | 1123 | |
1b6bf175 | 1124 | problem = 0; |
6582dbe9 ZL |
1125 | if (!inline_data_size || dot_state > 1) { |
1126 | dirent = (struct ext2_dir_entry *) (buf + offset); | |
4a3dc1f0 DW |
1127 | /* |
1128 | * If there's not even space for the entry header, | |
1129 | * force salvaging this dir. | |
1130 | */ | |
1131 | if (max_block_size - offset < EXT2_DIR_ENTRY_HEADER_LEN) | |
1132 | rec_len = EXT2_DIR_REC_LEN(1); | |
1133 | else | |
1134 | (void) ext2fs_get_rec_len(fs, dirent, &rec_len); | |
6582dbe9 ZL |
1135 | cd->pctx.dirent = dirent; |
1136 | cd->pctx.num = offset; | |
4a3dc1f0 | 1137 | if ((offset + rec_len > max_block_size) || |
6582dbe9 ZL |
1138 | (rec_len < 12) || |
1139 | ((rec_len % 4) != 0) || | |
62f9bd0e | 1140 | (((unsigned) ext2fs_dirent_name_len(dirent) + EXT2_DIR_ENTRY_HEADER_LEN) > rec_len)) { |
82ad476d DW |
1141 | if (fix_problem(ctx, PR_2_DIR_CORRUPTED, |
1142 | &cd->pctx)) { | |
4348709c DW |
1143 | #ifdef WORDS_BIGENDIAN |
1144 | /* | |
1145 | * On big-endian systems, if the dirent | |
1146 | * swap routine finds a rec_len that it | |
1147 | * doesn't like, it continues | |
1148 | * processing the block as if rec_len | |
4a3dc1f0 | 1149 | * == EXT2_DIR_ENTRY_HEADER_LEN. This means that the name |
4348709c DW |
1150 | * field gets byte swapped, which means |
1151 | * that salvage will not detect the | |
1152 | * correct name length (unless the name | |
1153 | * has a length that's an exact | |
1154 | * multiple of four bytes), and it'll | |
1155 | * discard the entry (unnecessarily) | |
1156 | * and the rest of the dirent block. | |
1157 | * Therefore, swap the rest of the | |
1158 | * block back to disk order, run | |
1159 | * salvage, and re-swap anything after | |
1160 | * the salvaged dirent. | |
1161 | */ | |
1162 | int need_reswab = 0; | |
4a3dc1f0 | 1163 | if (rec_len < EXT2_DIR_ENTRY_HEADER_LEN || rec_len % 4) { |
4348709c DW |
1164 | need_reswab = 1; |
1165 | ext2fs_dirent_swab_in2(fs, | |
4a3dc1f0 DW |
1166 | ((char *)dirent) + EXT2_DIR_ENTRY_HEADER_LEN, |
1167 | max_block_size - offset - EXT2_DIR_ENTRY_HEADER_LEN, | |
4348709c DW |
1168 | 0); |
1169 | } | |
1170 | #endif | |
82ad476d DW |
1171 | salvage_directory(fs, dirent, prev, |
1172 | &offset, | |
3a748dfc | 1173 | max_block_size); |
4348709c DW |
1174 | #ifdef WORDS_BIGENDIAN |
1175 | if (need_reswab) { | |
1176 | (void) ext2fs_get_rec_len(fs, | |
1177 | dirent, &rec_len); | |
1178 | ext2fs_dirent_swab_in2(fs, | |
1179 | ((char *)dirent) + offset + rec_len, | |
1180 | max_block_size - offset - rec_len, | |
1181 | 0); | |
1182 | } | |
1183 | #endif | |
6582dbe9 ZL |
1184 | dir_modified++; |
1185 | continue; | |
1186 | } else | |
1187 | goto abort_free_dict; | |
1188 | } | |
1189 | } else { | |
1190 | if (dot_state == 0) { | |
1191 | memset(&dot, 0, sizeof(dot)); | |
1192 | dirent = ˙ | |
1193 | dirent->inode = ino; | |
1194 | dirent->rec_len = EXT2_DIR_REC_LEN(1); | |
1195 | dirent->name_len = 1 | filetype; | |
1196 | dirent->name[0] = '.'; | |
1197 | } else if (dot_state == 1) { | |
1198 | memset(&dotdot, 0, sizeof(dotdot)); | |
1199 | dirent = &dotdot; | |
1200 | dirent->inode = | |
1201 | ((struct ext2_dir_entry *)buf)->inode; | |
1202 | dirent->rec_len = EXT2_DIR_REC_LEN(2); | |
1203 | dirent->name_len = 2 | filetype; | |
1204 | dirent->name[0] = '.'; | |
1205 | dirent->name[1] = '.'; | |
1206 | } else { | |
1207 | fatal_error(ctx, _("Can not continue.")); | |
1208 | } | |
1209 | cd->pctx.dirent = dirent; | |
1210 | cd->pctx.num = offset; | |
3839e657 | 1211 | } |
50e1e10f | 1212 | |
e70ae99e | 1213 | if (dot_state == 0) { |
1b6bf175 | 1214 | if (check_dot(ctx, dirent, ino, &cd->pctx)) |
3839e657 | 1215 | dir_modified++; |
e70ae99e | 1216 | } else if (dot_state == 1) { |
28db82a8 TT |
1217 | ret = check_dotdot(ctx, dirent, ino, &cd->pctx); |
1218 | if (ret < 0) | |
0926668d | 1219 | goto abort_free_dict; |
28db82a8 | 1220 | if (ret) |
3839e657 TT |
1221 | dir_modified++; |
1222 | } else if (dirent->inode == ino) { | |
1b6bf175 TT |
1223 | problem = PR_2_LINK_DOT; |
1224 | if (fix_problem(ctx, PR_2_LINK_DOT, &cd->pctx)) { | |
3839e657 TT |
1225 | dirent->inode = 0; |
1226 | dir_modified++; | |
21c84b71 | 1227 | goto next; |
3839e657 TT |
1228 | } |
1229 | } | |
efc6f628 | 1230 | if (!dirent->inode) |
3839e657 | 1231 | goto next; |
efc6f628 | 1232 | |
3839e657 TT |
1233 | /* |
1234 | * Make sure the inode listed is a legal one. | |
efc6f628 | 1235 | */ |
70f4632b | 1236 | name_len = ext2fs_dirent_name_len(dirent); |
3839e657 | 1237 | if (((dirent->inode != EXT2_ROOT_INO) && |
7f88b043 | 1238 | (dirent->inode < EXT2_FIRST_INODE(fs->super))) || |
3839e657 | 1239 | (dirent->inode > fs->super->s_inodes_count)) { |
1b6bf175 | 1240 | problem = PR_2_BAD_INO; |
1b6bf175 | 1241 | } else if (ctx->inode_bb_map && |
c5d2f50d | 1242 | (ext2fs_test_inode_bitmap2(ctx->inode_bb_map, |
1b6bf175 TT |
1243 | dirent->inode))) { |
1244 | /* | |
1245 | * If the inode is in a bad block, offer to | |
1246 | * clear it. | |
1247 | */ | |
1248 | problem = PR_2_BB_INODE; | |
70f4632b | 1249 | } else if ((dot_state > 1) && (name_len == 1) && |
1b6bf175 TT |
1250 | (dirent->name[0] == '.')) { |
1251 | /* | |
1252 | * If there's a '.' entry in anything other | |
1253 | * than the first directory entry, it's a | |
1254 | * duplicate entry that should be removed. | |
1255 | */ | |
1256 | problem = PR_2_DUP_DOT; | |
70f4632b | 1257 | } else if ((dot_state > 1) && (name_len == 2) && |
efc6f628 | 1258 | (dirent->name[0] == '.') && |
1b6bf175 TT |
1259 | (dirent->name[1] == '.')) { |
1260 | /* | |
1261 | * If there's a '..' entry in anything other | |
1262 | * than the second directory entry, it's a | |
1263 | * duplicate entry that should be removed. | |
1264 | */ | |
1265 | problem = PR_2_DUP_DOT_DOT; | |
e70ae99e | 1266 | } else if ((dot_state > 1) && |
1b6bf175 TT |
1267 | (dirent->inode == EXT2_ROOT_INO)) { |
1268 | /* | |
1269 | * Don't allow links to the root directory. | |
1270 | * We check this specially to make sure we | |
1271 | * catch this error case even if the root | |
1272 | * directory hasn't been created yet. | |
1273 | */ | |
1274 | problem = PR_2_LINK_ROOT; | |
70f4632b | 1275 | } else if ((dot_state > 1) && (name_len == 0)) { |
c40db6d5 TT |
1276 | /* |
1277 | * Don't allow zero-length directory names. | |
1278 | */ | |
1279 | problem = PR_2_NULL_NAME; | |
21c84b71 TT |
1280 | } |
1281 | ||
1b6bf175 TT |
1282 | if (problem) { |
1283 | if (fix_problem(ctx, problem, &cd->pctx)) { | |
21c84b71 TT |
1284 | dirent->inode = 0; |
1285 | dir_modified++; | |
1286 | goto next; | |
1b6bf175 TT |
1287 | } else { |
1288 | ext2fs_unmark_valid(fs); | |
1289 | if (problem == PR_2_BAD_INO) | |
1290 | goto next; | |
21c84b71 | 1291 | } |
3839e657 TT |
1292 | } |
1293 | ||
1294 | /* | |
1295 | * If the inode was marked as having bad fields in | |
1296 | * pass1, process it and offer to fix/clear it. | |
1297 | * (We wait until now so that we can display the | |
1298 | * pathname to the user.) | |
1299 | */ | |
1b6bf175 | 1300 | if (ctx->inode_bad_map && |
c5d2f50d | 1301 | ext2fs_test_inode_bitmap2(ctx->inode_bad_map, |
3839e657 | 1302 | dirent->inode)) { |
e72a9ba3 | 1303 | if (e2fsck_process_bad_inode(ctx, ino, |
bcf9c5d4 TT |
1304 | dirent->inode, |
1305 | buf + fs->blocksize)) { | |
3839e657 TT |
1306 | dirent->inode = 0; |
1307 | dir_modified++; | |
1308 | goto next; | |
1309 | } | |
a02ce9df | 1310 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK) |
08b21301 | 1311 | return DIRENT_ABORT; |
3839e657 TT |
1312 | } |
1313 | ||
49a7360b JS |
1314 | group = ext2fs_group_of_ino(fs, dirent->inode); |
1315 | first_unused_inode = group * fs->super->s_inodes_per_group + | |
1316 | 1 + fs->super->s_inodes_per_group - | |
d7cca6b0 | 1317 | ext2fs_bg_itable_unused(fs, group); |
49a7360b JS |
1318 | cd->pctx.group = group; |
1319 | ||
1320 | /* | |
42e89ce7 TT |
1321 | * Check if the inode was missed out because |
1322 | * _INODE_UNINIT flag was set or bg_itable_unused was | |
1323 | * incorrect. If so, clear the _INODE_UNINIT flag and | |
1324 | * restart e2fsck. In the future it would be nice if | |
1325 | * we could call a function in pass1.c that checks the | |
1326 | * newly visible inodes. | |
49a7360b | 1327 | */ |
cd65a24e | 1328 | if (ext2fs_bg_flags_test(fs, group, EXT2_BG_INODE_UNINIT)) { |
6267ee49 | 1329 | pctx.num = dirent->inode; |
49a7360b JS |
1330 | if (fix_problem(ctx, PR_2_INOREF_BG_INO_UNINIT, |
1331 | &cd->pctx)){ | |
e633b58a | 1332 | ext2fs_bg_flags_clear(fs, group, |
732c8cd5 | 1333 | EXT2_BG_INODE_UNINIT); |
42e89ce7 | 1334 | ext2fs_mark_super_dirty(fs); |
6267ee49 | 1335 | ctx->flags |= E2F_FLAG_RESTART_LATER; |
49a7360b JS |
1336 | } else { |
1337 | ext2fs_unmark_valid(fs); | |
1338 | if (problem == PR_2_BAD_INO) | |
1339 | goto next; | |
1340 | } | |
1341 | } else if (dirent->inode >= first_unused_inode) { | |
6267ee49 | 1342 | pctx.num = dirent->inode; |
49a7360b | 1343 | if (fix_problem(ctx, PR_2_INOREF_IN_UNUSED, &cd->pctx)){ |
d7cca6b0 | 1344 | ext2fs_bg_itable_unused_set(fs, group, 0); |
49a7360b | 1345 | ext2fs_mark_super_dirty(fs); |
6267ee49 | 1346 | ctx->flags |= E2F_FLAG_RESTART_LATER; |
49a7360b JS |
1347 | } else { |
1348 | ext2fs_unmark_valid(fs); | |
1349 | if (problem == PR_2_BAD_INO) | |
1350 | goto next; | |
1351 | } | |
1352 | } | |
1353 | ||
0433c1f1 TT |
1354 | /* |
1355 | * Offer to clear unused inodes; if we are going to be | |
1356 | * restarting the scan due to bg_itable_unused being | |
1357 | * wrong, then don't clear any inodes to avoid zapping | |
1358 | * inodes that were skipped during pass1 due to an | |
1359 | * incorrect bg_itable_unused; we'll get any real | |
1360 | * problems after we restart. | |
1361 | */ | |
1362 | if (!(ctx->flags & E2F_FLAG_RESTART_LATER) && | |
97d26ce9 TT |
1363 | !(ext2fs_test_inode_bitmap2(ctx->inode_used_map, |
1364 | dirent->inode))) | |
49a7360b | 1365 | problem = PR_2_UNUSED_INODE; |
49a7360b JS |
1366 | |
1367 | if (problem) { | |
1368 | if (fix_problem(ctx, problem, &cd->pctx)) { | |
1369 | dirent->inode = 0; | |
1370 | dir_modified++; | |
1371 | goto next; | |
1372 | } else { | |
1373 | ext2fs_unmark_valid(fs); | |
1374 | if (problem == PR_2_BAD_INO) | |
1375 | goto next; | |
1376 | } | |
1377 | } | |
1378 | ||
25f291c9 | 1379 | if (!encrypted && check_name(ctx, dirent, &cd->pctx)) |
1b6bf175 TT |
1380 | dir_modified++; |
1381 | ||
e3dd5c6f TT |
1382 | if (encrypted && (dot_state) > 1 && |
1383 | encrypted_check_name(ctx, dirent, &cd->pctx)) { | |
1384 | dir_modified++; | |
1385 | goto next; | |
1386 | } | |
1387 | ||
aa4115a4 TT |
1388 | if (check_filetype(ctx, dirent, ino, &cd->pctx)) |
1389 | dir_modified++; | |
1390 | ||
8fdc9985 | 1391 | if (dx_db) { |
437651ad TT |
1392 | ext2fs_dirhash(dx_dir->hashversion, dirent->name, |
1393 | ext2fs_dirent_name_len(dirent), | |
1394 | fs->super->s_hash_seed, &hash, 0); | |
8fdc9985 TT |
1395 | if (hash < dx_db->min_hash) |
1396 | dx_db->min_hash = hash; | |
1397 | if (hash > dx_db->max_hash) | |
1398 | dx_db->max_hash = hash; | |
1399 | } | |
8fdc9985 | 1400 | |
3839e657 TT |
1401 | /* |
1402 | * If this is a directory, then mark its parent in its | |
1403 | * dir_info structure. If the parent field is already | |
1404 | * filled in, then this directory has more than one | |
1405 | * hard link. We assume the first link is correct, | |
1406 | * and ask the user if he/she wants to clear this one. | |
1407 | */ | |
e70ae99e | 1408 | if ((dot_state > 1) && |
c5d2f50d | 1409 | (ext2fs_test_inode_bitmap2(ctx->inode_dir_map, |
3839e657 | 1410 | dirent->inode))) { |
28db82a8 TT |
1411 | if (e2fsck_dir_info_get_parent(ctx, dirent->inode, |
1412 | &subdir_parent)) { | |
1b6bf175 TT |
1413 | cd->pctx.ino = dirent->inode; |
1414 | fix_problem(ctx, PR_2_NO_DIRINFO, &cd->pctx); | |
0926668d | 1415 | goto abort_free_dict; |
3839e657 | 1416 | } |
28db82a8 TT |
1417 | if (subdir_parent) { |
1418 | cd->pctx.ino2 = subdir_parent; | |
1b6bf175 | 1419 | if (fix_problem(ctx, PR_2_LINK_DIR, |
21c84b71 | 1420 | &cd->pctx)) { |
3839e657 TT |
1421 | dirent->inode = 0; |
1422 | dir_modified++; | |
1423 | goto next; | |
21c84b71 TT |
1424 | } |
1425 | cd->pctx.ino2 = 0; | |
28db82a8 | 1426 | } else { |
efc6f628 | 1427 | (void) e2fsck_dir_info_set_parent(ctx, |
28db82a8 TT |
1428 | dirent->inode, ino); |
1429 | } | |
3839e657 | 1430 | } |
0926668d TT |
1431 | |
1432 | if (dups_found) { | |
1433 | ; | |
1434 | } else if (dict_lookup(&de_dict, dirent)) { | |
1435 | clear_problem_context(&pctx); | |
1436 | pctx.ino = ino; | |
1437 | pctx.dirent = dirent; | |
1438 | fix_problem(ctx, PR_2_REPORT_DUP_DIRENT, &pctx); | |
e8548796 | 1439 | e2fsck_rehash_dir_later(ctx, ino); |
0926668d TT |
1440 | dups_found++; |
1441 | } else | |
1442 | dict_alloc_insert(&de_dict, dirent, dirent); | |
efc6f628 | 1443 | |
1b6bf175 TT |
1444 | ext2fs_icount_increment(ctx->inode_count, dirent->inode, |
1445 | &links); | |
21c84b71 | 1446 | if (links > 1) |
1b6bf175 TT |
1447 | ctx->fs_links_count++; |
1448 | ctx->fs_total_count++; | |
3839e657 | 1449 | next: |
e70ae99e | 1450 | prev = dirent; |
5dd77dbe | 1451 | if (dir_modified) |
8a480350 | 1452 | (void) ext2fs_get_rec_len(fs, dirent, &rec_len); |
6582dbe9 ZL |
1453 | if (!inline_data_size || dot_state > 1) { |
1454 | offset += rec_len; | |
1455 | } else { | |
6698374c | 1456 | if (dot_state == 1) { |
6582dbe9 | 1457 | offset = 4; |
6698374c DW |
1458 | /* |
1459 | * If we get here, we're checking an inline | |
1460 | * directory and we've just checked a (fake) | |
1461 | * dotdot entry that we created on the stack. | |
1462 | * Therefore set 'prev' to NULL so that if we | |
1463 | * call salvage_directory on the next entry, | |
1464 | * it won't try to absorb the next entry into | |
1465 | * the on-stack dotdot entry. | |
1466 | */ | |
1467 | prev = NULL; | |
1468 | } | |
6582dbe9 | 1469 | } |
e70ae99e | 1470 | dot_state++; |
0ac4b397 | 1471 | } while (offset < max_block_size); |
3839e657 TT |
1472 | #if 0 |
1473 | printf("\n"); | |
1474 | #endif | |
8fdc9985 TT |
1475 | if (dx_db) { |
1476 | #ifdef DX_DEBUG | |
1477 | printf("db_block %d, type %d, min_hash 0x%0x, max_hash 0x%0x\n", | |
1478 | db->blockcnt, dx_db->type, | |
1479 | dx_db->min_hash, dx_db->max_hash); | |
1480 | #endif | |
b7a00563 | 1481 | cd->pctx.dir = cd->pctx.ino; |
8fdc9985 TT |
1482 | if ((dx_db->type == DX_DIRBLOCK_ROOT) || |
1483 | (dx_db->type == DX_DIRBLOCK_NODE)) | |
81683c6a | 1484 | parse_int_node(fs, db, cd, dx_dir, buf, failed_csum); |
8fdc9985 | 1485 | } |
e8548796 | 1486 | |
0ac4b397 DW |
1487 | if (offset != max_block_size) { |
1488 | cd->pctx.num = rec_len + offset - max_block_size; | |
1489 | if (fix_problem(ctx, PR_2_FINAL_RECLEN, &cd->pctx)) { | |
1490 | dirent->rec_len = cd->pctx.num; | |
1491 | dir_modified++; | |
1b6bf175 | 1492 | } |
3839e657 TT |
1493 | } |
1494 | if (dir_modified) { | |
2e9d8391 | 1495 | int flags, will_rehash; |
e8548796 | 1496 | /* leaf block with no tail? Rehash dirs later. */ |
86f3b6cf | 1497 | if (ext2fs_has_feature_metadata_csum(fs->super) && |
e8548796 | 1498 | is_leaf && |
17641bf2 DW |
1499 | !inline_data_size && |
1500 | !ext2fs_dirent_has_tail(fs, (struct ext2_dir_entry *)buf)) { | |
1501 | if (insert_dirent_tail(fs, buf) == 0) | |
1502 | goto write_and_fix; | |
e8548796 | 1503 | e2fsck_rehash_dir_later(ctx, ino); |
17641bf2 | 1504 | } |
e8548796 DW |
1505 | |
1506 | write_and_fix: | |
2e9d8391 DW |
1507 | will_rehash = e2fsck_dir_will_be_rehashed(ctx, ino); |
1508 | if (will_rehash) { | |
1509 | flags = ctx->fs->flags; | |
e8548796 | 1510 | ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS; |
2e9d8391 | 1511 | } |
6582dbe9 | 1512 | if (inline_data_size) { |
0ac4b397 | 1513 | buf = ibuf; |
cd971869 | 1514 | #ifdef WORDS_BIGENDIAN |
0ac4b397 DW |
1515 | if (db->blockcnt) |
1516 | goto skip_first_write_swab; | |
cd971869 DW |
1517 | *((__u32 *)buf) = ext2fs_le32_to_cpu(*((__u32 *)buf)); |
1518 | cd->pctx.errcode = ext2fs_dirent_swab_out2(fs, | |
1519 | buf + EXT4_INLINE_DATA_DOTDOT_SIZE, | |
0ac4b397 | 1520 | EXT4_MIN_INLINE_DATA_SIZE - |
cd971869 DW |
1521 | EXT4_INLINE_DATA_DOTDOT_SIZE, |
1522 | 0); | |
0ac4b397 DW |
1523 | if (cd->pctx.errcode) |
1524 | goto skip_second_write_swab; | |
1525 | skip_first_write_swab: | |
1526 | if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE || | |
1527 | !db->blockcnt) | |
1528 | goto skip_second_write_swab; | |
1529 | cd->pctx.errcode = ext2fs_dirent_swab_out2(fs, | |
1530 | buf + EXT4_MIN_INLINE_DATA_SIZE, | |
1531 | inline_data_size - | |
1532 | EXT4_MIN_INLINE_DATA_SIZE, | |
1533 | 0); | |
1534 | skip_second_write_swab: | |
cd971869 DW |
1535 | if (cd->pctx.errcode && |
1536 | !fix_problem(ctx, PR_2_WRITE_DIRBLOCK, &cd->pctx)) | |
1537 | goto abort_free_dict; | |
1538 | #endif | |
6582dbe9 ZL |
1539 | cd->pctx.errcode = |
1540 | ext2fs_inline_data_set(fs, ino, 0, buf, | |
1541 | inline_data_size); | |
1542 | } else | |
1543 | cd->pctx.errcode = ext2fs_write_dir_block4(fs, block_nr, | |
1544 | buf, 0, ino); | |
2e9d8391 DW |
1545 | if (will_rehash) |
1546 | ctx->fs->flags = (flags & | |
1547 | EXT2_FLAG_IGNORE_CSUM_ERRORS) | | |
1548 | (ctx->fs->flags & | |
1549 | ~EXT2_FLAG_IGNORE_CSUM_ERRORS); | |
1b6bf175 | 1550 | if (cd->pctx.errcode) { |
08b21301 | 1551 | if (!fix_problem(ctx, PR_2_WRITE_DIRBLOCK, |
0926668d TT |
1552 | &cd->pctx)) |
1553 | goto abort_free_dict; | |
3839e657 TT |
1554 | } |
1555 | ext2fs_mark_changed(fs); | |
e8548796 DW |
1556 | } else if (is_leaf && failed_csum && !dir_modified) { |
1557 | /* | |
1558 | * If a leaf node that fails csum makes it this far without | |
1559 | * alteration, ask the user if the checksum should be fixed. | |
1560 | */ | |
1561 | if (fix_problem(ctx, PR_2_LEAF_NODE_ONLY_CSUM_INVALID, | |
1562 | &cd->pctx)) | |
1563 | goto write_and_fix; | |
3839e657 | 1564 | } |
0926668d | 1565 | dict_free_nodes(&de_dict); |
3839e657 | 1566 | return 0; |
0926668d | 1567 | abort_free_dict: |
0926668d | 1568 | ctx->flags |= E2F_FLAG_ABORT; |
49a7360b | 1569 | dict_free_nodes(&de_dict); |
0926668d | 1570 | return DIRENT_ABORT; |
3839e657 TT |
1571 | } |
1572 | ||
624e4a64 AK |
1573 | struct del_block { |
1574 | e2fsck_t ctx; | |
1575 | e2_blkcnt_t num; | |
1576 | }; | |
1577 | ||
3839e657 TT |
1578 | /* |
1579 | * This function is called to deallocate a block, and is an interator | |
1580 | * functioned called by deallocate inode via ext2fs_iterate_block(). | |
1581 | */ | |
1582 | static int deallocate_inode_block(ext2_filsys fs, | |
6dc64392 | 1583 | blk64_t *block_nr, |
54434927 | 1584 | e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), |
6dc64392 | 1585 | blk64_t ref_block EXT2FS_ATTR((unused)), |
54434927 | 1586 | int ref_offset EXT2FS_ATTR((unused)), |
133a56dc | 1587 | void *priv_data) |
3839e657 | 1588 | { |
624e4a64 | 1589 | struct del_block *p = priv_data; |
efc6f628 | 1590 | |
4a05268c | 1591 | if (*block_nr == 0) |
3839e657 | 1592 | return 0; |
1ba7a2f2 | 1593 | if ((*block_nr < fs->super->s_first_data_block) || |
4efbac6f | 1594 | (*block_nr >= ext2fs_blocks_count(fs->super))) |
1ba7a2f2 | 1595 | return 0; |
8dd650ab DW |
1596 | if ((*block_nr % EXT2FS_CLUSTER_RATIO(fs)) == 0) |
1597 | ext2fs_block_alloc_stats2(fs, *block_nr, -1); | |
624e4a64 | 1598 | p->num++; |
3839e657 TT |
1599 | return 0; |
1600 | } | |
efc6f628 | 1601 | |
3839e657 TT |
1602 | /* |
1603 | * This fuction deallocates an inode | |
1604 | */ | |
4035f40b | 1605 | static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf) |
3839e657 | 1606 | { |
1b6bf175 | 1607 | ext2_filsys fs = ctx->fs; |
3839e657 | 1608 | struct ext2_inode inode; |
1b6bf175 | 1609 | struct problem_context pctx; |
0684a4f3 | 1610 | __u32 count; |
624e4a64 | 1611 | struct del_block del_block; |
efc6f628 | 1612 | |
08b21301 | 1613 | e2fsck_read_inode(ctx, ino, &inode, "deallocate_inode"); |
1b6bf175 TT |
1614 | clear_problem_context(&pctx); |
1615 | pctx.ino = ino; | |
f3db3566 | 1616 | |
3839e657 TT |
1617 | /* |
1618 | * Fix up the bitmaps... | |
1619 | */ | |
f8188fff | 1620 | e2fsck_read_bitmaps(ctx); |
0684a4f3 TT |
1621 | ext2fs_inode_alloc_stats2(fs, ino, -1, LINUX_S_ISDIR(inode.i_mode)); |
1622 | ||
0c80c44b | 1623 | if (ext2fs_file_acl_block(fs, &inode) && |
86f3b6cf | 1624 | ext2fs_has_feature_xattr(fs->super)) { |
39f5659a DW |
1625 | pctx.errcode = ext2fs_adjust_ea_refcount3(fs, |
1626 | ext2fs_file_acl_block(fs, &inode), | |
1627 | block_buf, -1, &count, ino); | |
0684a4f3 TT |
1628 | if (pctx.errcode == EXT2_ET_BAD_EA_BLOCK_NUM) { |
1629 | pctx.errcode = 0; | |
1630 | count = 1; | |
1631 | } | |
1632 | if (pctx.errcode) { | |
0c80c44b | 1633 | pctx.blk = ext2fs_file_acl_block(fs, &inode); |
0684a4f3 TT |
1634 | fix_problem(ctx, PR_2_ADJ_EA_REFCOUNT, &pctx); |
1635 | ctx->flags |= E2F_FLAG_ABORT; | |
1636 | return; | |
1637 | } | |
1638 | if (count == 0) { | |
48f23054 | 1639 | ext2fs_block_alloc_stats2(fs, |
0c80c44b | 1640 | ext2fs_file_acl_block(fs, &inode), -1); |
0684a4f3 | 1641 | } |
0c80c44b | 1642 | ext2fs_file_acl_block_set(fs, &inode, 0); |
0684a4f3 | 1643 | } |
3839e657 | 1644 | |
0c80c44b | 1645 | if (!ext2fs_inode_has_valid_blocks2(fs, &inode)) |
c8ec2bad | 1646 | goto clear_inode; |
a4742691 | 1647 | |
2ece8390 DW |
1648 | /* Inline data inodes don't have blocks to iterate */ |
1649 | if (inode.i_flags & EXT4_INLINE_DATA_FL) | |
1650 | goto clear_inode; | |
1651 | ||
3b6c0938 DW |
1652 | if (LINUX_S_ISREG(inode.i_mode) && |
1653 | ext2fs_needs_large_file_feature(EXT2_I_SIZE(&inode))) | |
a4742691 TT |
1654 | ctx->large_files--; |
1655 | ||
624e4a64 AK |
1656 | del_block.ctx = ctx; |
1657 | del_block.num = 0; | |
6dc64392 | 1658 | pctx.errcode = ext2fs_block_iterate3(fs, ino, 0, block_buf, |
624e4a64 AK |
1659 | deallocate_inode_block, |
1660 | &del_block); | |
1b6bf175 TT |
1661 | if (pctx.errcode) { |
1662 | fix_problem(ctx, PR_2_DEALLOC_INODE, &pctx); | |
08b21301 TT |
1663 | ctx->flags |= E2F_FLAG_ABORT; |
1664 | return; | |
1b6bf175 | 1665 | } |
c8ec2bad TT |
1666 | clear_inode: |
1667 | /* Inode may have changed by block_iterate, so reread it */ | |
1668 | e2fsck_read_inode(ctx, ino, &inode, "deallocate_inode"); | |
1669 | e2fsck_clear_inode(ctx, ino, &inode, 0, "deallocate_inode"); | |
3839e657 TT |
1670 | } |
1671 | ||
8fdc9985 TT |
1672 | /* |
1673 | * This fuction clears the htree flag on an inode | |
1674 | */ | |
1675 | static void clear_htree(e2fsck_t ctx, ext2_ino_t ino) | |
1676 | { | |
1677 | struct ext2_inode inode; | |
efc6f628 | 1678 | |
8fdc9985 TT |
1679 | e2fsck_read_inode(ctx, ino, &inode, "clear_htree"); |
1680 | inode.i_flags = inode.i_flags & ~EXT2_INDEX_FL; | |
1681 | e2fsck_write_inode(ctx, ino, &inode, "clear_htree"); | |
b7a00563 TT |
1682 | if (ctx->dirs_to_hash) |
1683 | ext2fs_u32_list_add(ctx->dirs_to_hash, ino); | |
8fdc9985 TT |
1684 | } |
1685 | ||
1686 | ||
f404167d TT |
1687 | int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir, |
1688 | ext2_ino_t ino, char *buf) | |
3839e657 | 1689 | { |
1b6bf175 | 1690 | ext2_filsys fs = ctx->fs; |
3839e657 | 1691 | struct ext2_inode inode; |
3839e657 | 1692 | int inode_modified = 0; |
6c313fd4 | 1693 | int not_fixed = 0; |
1e3472c5 | 1694 | unsigned char *frag, *fsize; |
21c84b71 | 1695 | struct problem_context pctx; |
3c7c6d73 | 1696 | problem_t problem = 0; |
3839e657 | 1697 | |
08b21301 | 1698 | e2fsck_read_inode(ctx, ino, &inode, "process_bad_inode"); |
21c84b71 TT |
1699 | |
1700 | clear_problem_context(&pctx); | |
1701 | pctx.ino = ino; | |
1702 | pctx.dir = dir; | |
1703 | pctx.inode = &inode; | |
1704 | ||
0c80c44b | 1705 | if (ext2fs_file_acl_block(fs, &inode) && |
86f3b6cf | 1706 | !ext2fs_has_feature_xattr(fs->super)) { |
f76344fb | 1707 | if (fix_problem(ctx, PR_2_FILE_ACL_ZERO, &pctx)) { |
0c80c44b | 1708 | ext2fs_file_acl_block_set(fs, &inode, 0); |
f76344fb TT |
1709 | inode_modified++; |
1710 | } else | |
1711 | not_fixed++; | |
1712 | } | |
6c313fd4 | 1713 | |
50e1e10f TT |
1714 | if (!LINUX_S_ISDIR(inode.i_mode) && !LINUX_S_ISREG(inode.i_mode) && |
1715 | !LINUX_S_ISCHR(inode.i_mode) && !LINUX_S_ISBLK(inode.i_mode) && | |
1716 | !LINUX_S_ISLNK(inode.i_mode) && !LINUX_S_ISFIFO(inode.i_mode) && | |
08b21301 TT |
1717 | !(LINUX_S_ISSOCK(inode.i_mode))) |
1718 | problem = PR_2_BAD_MODE; | |
fdbdea09 | 1719 | else if (LINUX_S_ISCHR(inode.i_mode) |
0684a4f3 | 1720 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
08b21301 | 1721 | problem = PR_2_BAD_CHAR_DEV; |
fdbdea09 | 1722 | else if (LINUX_S_ISBLK(inode.i_mode) |
0684a4f3 | 1723 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
08b21301 | 1724 | problem = PR_2_BAD_BLOCK_DEV; |
fdbdea09 | 1725 | else if (LINUX_S_ISFIFO(inode.i_mode) |
0684a4f3 | 1726 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
1dde43f0 | 1727 | problem = PR_2_BAD_FIFO; |
fdbdea09 | 1728 | else if (LINUX_S_ISSOCK(inode.i_mode) |
0684a4f3 | 1729 | && !e2fsck_pass1_check_device_inode(fs, &inode)) |
1dde43f0 | 1730 | problem = PR_2_BAD_SOCKET; |
fdbdea09 | 1731 | else if (LINUX_S_ISLNK(inode.i_mode) |
7cadc577 | 1732 | && !e2fsck_pass1_check_symlink(fs, ino, &inode, buf)) { |
bcf9c5d4 | 1733 | problem = PR_2_INVALID_SYMLINK; |
67052a8a | 1734 | } |
1dde43f0 | 1735 | |
08b21301 TT |
1736 | if (problem) { |
1737 | if (fix_problem(ctx, problem, &pctx)) { | |
1b6bf175 | 1738 | deallocate_inode(ctx, ino, 0); |
a02ce9df | 1739 | if (ctx->flags & E2F_FLAG_SIGNAL_MASK) |
08b21301 | 1740 | return 0; |
7cf73dcd | 1741 | return 1; |
6c313fd4 TT |
1742 | } else |
1743 | not_fixed++; | |
08b21301 | 1744 | problem = 0; |
7cf73dcd | 1745 | } |
efc6f628 | 1746 | |
6c313fd4 TT |
1747 | if (inode.i_faddr) { |
1748 | if (fix_problem(ctx, PR_2_FADDR_ZERO, &pctx)) { | |
1749 | inode.i_faddr = 0; | |
1750 | inode_modified++; | |
1751 | } else | |
1752 | not_fixed++; | |
3839e657 | 1753 | } |
1e3472c5 TT |
1754 | |
1755 | switch (fs->super->s_creator_os) { | |
1e3472c5 TT |
1756 | case EXT2_OS_HURD: |
1757 | frag = &inode.osd2.hurd2.h_i_frag; | |
1758 | fsize = &inode.osd2.hurd2.h_i_fsize; | |
1759 | break; | |
1e3472c5 TT |
1760 | default: |
1761 | frag = fsize = 0; | |
1762 | } | |
21c84b71 TT |
1763 | if (frag && *frag) { |
1764 | pctx.num = *frag; | |
1b6bf175 | 1765 | if (fix_problem(ctx, PR_2_FRAG_ZERO, &pctx)) { |
21c84b71 TT |
1766 | *frag = 0; |
1767 | inode_modified++; | |
7e0282c5 TT |
1768 | } else |
1769 | not_fixed++; | |
21c84b71 TT |
1770 | pctx.num = 0; |
1771 | } | |
1772 | if (fsize && *fsize) { | |
1773 | pctx.num = *fsize; | |
1b6bf175 | 1774 | if (fix_problem(ctx, PR_2_FSIZE_ZERO, &pctx)) { |
21c84b71 TT |
1775 | *fsize = 0; |
1776 | inode_modified++; | |
6c313fd4 TT |
1777 | } else |
1778 | not_fixed++; | |
21c84b71 TT |
1779 | pctx.num = 0; |
1780 | } | |
1781 | ||
5d17119d | 1782 | if ((fs->super->s_creator_os == EXT2_OS_LINUX) && |
86f3b6cf | 1783 | !ext2fs_has_feature_huge_file(fs->super) && |
5d17119d TT |
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 | 1792 | if ((fs->super->s_creator_os == EXT2_OS_LINUX) && |
86f3b6cf | 1793 | !ext2fs_has_feature_64bit(fs->super) && |
911ec626 TT |
1794 | inode.osd2.linux2.l_i_file_acl_high != 0) { |
1795 | pctx.num = inode.osd2.linux2.l_i_file_acl_high; | |
1796 | if (fix_problem(ctx, PR_2_I_FILE_ACL_HI_ZERO, &pctx)) { | |
1797 | inode.osd2.linux2.l_i_file_acl_high = 0; | |
1798 | inode_modified++; | |
1799 | } else | |
1800 | not_fixed++; | |
1801 | } | |
1802 | ||
0c80c44b TT |
1803 | if (ext2fs_file_acl_block(fs, &inode) && |
1804 | ((ext2fs_file_acl_block(fs, &inode) < fs->super->s_first_data_block) || | |
1805 | (ext2fs_file_acl_block(fs, &inode) >= ext2fs_blocks_count(fs->super)))) { | |
6c313fd4 | 1806 | if (fix_problem(ctx, PR_2_FILE_ACL_BAD, &pctx)) { |
0c80c44b | 1807 | ext2fs_file_acl_block_set(fs, &inode, 0); |
6c313fd4 TT |
1808 | inode_modified++; |
1809 | } else | |
1810 | not_fixed++; | |
342d847d | 1811 | } |
21c84b71 | 1812 | if (inode.i_dir_acl && |
6c313fd4 TT |
1813 | LINUX_S_ISDIR(inode.i_mode)) { |
1814 | if (fix_problem(ctx, PR_2_DIR_ACL_ZERO, &pctx)) { | |
1815 | inode.i_dir_acl = 0; | |
1816 | inode_modified++; | |
1817 | } else | |
1818 | not_fixed++; | |
21c84b71 | 1819 | } |
6c313fd4 | 1820 | |
f3db3566 | 1821 | if (inode_modified) |
08b21301 | 1822 | e2fsck_write_inode(ctx, ino, &inode, "process_bad_inode"); |
f76344fb | 1823 | if (!not_fixed && ctx->inode_bad_map) |
c5d2f50d | 1824 | ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino); |
3839e657 TT |
1825 | return 0; |
1826 | } | |
1827 | ||
50e1e10f TT |
1828 | /* |
1829 | * allocate_dir_block --- this function allocates a new directory | |
1830 | * block for a particular inode; this is done if a directory has | |
1831 | * a "hole" in it, or if a directory has a illegal block number | |
1832 | * that was zeroed out and now needs to be replaced. | |
1833 | */ | |
1b6bf175 | 1834 | static int allocate_dir_block(e2fsck_t ctx, |
6dc64392 | 1835 | struct ext2_db_entry2 *db, |
efc6f628 | 1836 | char *buf EXT2FS_ATTR((unused)), |
54434927 | 1837 | struct problem_context *pctx) |
50e1e10f | 1838 | { |
1b6bf175 | 1839 | ext2_filsys fs = ctx->fs; |
ff11309e | 1840 | blk64_t blk = 0; |
50e1e10f TT |
1841 | char *block; |
1842 | struct ext2_inode inode; | |
50e1e10f | 1843 | |
1b6bf175 | 1844 | if (fix_problem(ctx, PR_2_DIRECTORY_HOLE, pctx) == 0) |
50e1e10f TT |
1845 | return 1; |
1846 | ||
1847 | /* | |
1848 | * Read the inode and block bitmaps in; we'll be messing with | |
1849 | * them. | |
1850 | */ | |
f8188fff | 1851 | e2fsck_read_bitmaps(ctx); |
efc6f628 | 1852 | |
50e1e10f TT |
1853 | /* |
1854 | * First, find a free block | |
1855 | */ | |
ff11309e DW |
1856 | e2fsck_read_inode(ctx, db->ino, &inode, "allocate_dir_block"); |
1857 | pctx->errcode = ext2fs_map_cluster_block(fs, db->ino, &inode, | |
1858 | db->blockcnt, &blk); | |
1859 | if (pctx->errcode || blk == 0) { | |
7b486ec0 DW |
1860 | blk = ext2fs_find_inode_goal(fs, db->ino, &inode, db->blockcnt); |
1861 | pctx->errcode = ext2fs_new_block2(fs, blk, | |
ff11309e DW |
1862 | ctx->block_found_map, &blk); |
1863 | if (pctx->errcode) { | |
1864 | pctx->str = "ext2fs_new_block"; | |
1865 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
1866 | return 1; | |
1867 | } | |
50e1e10f | 1868 | } |
c5d2f50d VAH |
1869 | ext2fs_mark_block_bitmap2(ctx->block_found_map, blk); |
1870 | ext2fs_mark_block_bitmap2(fs->block_map, blk); | |
50e1e10f TT |
1871 | ext2fs_mark_bb_dirty(fs); |
1872 | ||
1873 | /* | |
1874 | * Now let's create the actual data block for the inode | |
1875 | */ | |
1876 | if (db->blockcnt) | |
1b6bf175 | 1877 | pctx->errcode = ext2fs_new_dir_block(fs, 0, 0, &block); |
50e1e10f | 1878 | else |
1b6bf175 TT |
1879 | pctx->errcode = ext2fs_new_dir_block(fs, db->ino, |
1880 | EXT2_ROOT_INO, &block); | |
50e1e10f | 1881 | |
1b6bf175 TT |
1882 | if (pctx->errcode) { |
1883 | pctx->str = "ext2fs_new_dir_block"; | |
1884 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
50e1e10f TT |
1885 | return 1; |
1886 | } | |
1887 | ||
81683c6a | 1888 | pctx->errcode = ext2fs_write_dir_block4(fs, blk, block, 0, db->ino); |
c4e3d3f3 | 1889 | ext2fs_free_mem(&block); |
1b6bf175 TT |
1890 | if (pctx->errcode) { |
1891 | pctx->str = "ext2fs_write_dir_block"; | |
1892 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
50e1e10f TT |
1893 | return 1; |
1894 | } | |
1895 | ||
1896 | /* | |
1897 | * Update the inode block count | |
1898 | */ | |
1ca1059f | 1899 | ext2fs_iblk_add_blocks(fs, &inode, 1); |
62f9bd0e | 1900 | if (EXT2_I_SIZE(&inode) < ((__u64) db->blockcnt+1) * fs->blocksize) { |
97c607b1 DW |
1901 | pctx->errcode = ext2fs_inode_size_set(fs, &inode, |
1902 | (db->blockcnt+1) * fs->blocksize); | |
1903 | if (pctx->errcode) { | |
1904 | pctx->str = "ext2fs_inode_size_set"; | |
1905 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
1906 | return 1; | |
1907 | } | |
1908 | } | |
08b21301 | 1909 | e2fsck_write_inode(ctx, db->ino, &inode, "allocate_dir_block"); |
50e1e10f TT |
1910 | |
1911 | /* | |
1912 | * Finally, update the block pointers for the inode | |
1913 | */ | |
1914 | db->blk = blk; | |
2d07b3ad TT |
1915 | pctx->errcode = ext2fs_bmap2(fs, db->ino, &inode, 0, BMAP_SET, |
1916 | db->blockcnt, 0, &blk); | |
1b6bf175 TT |
1917 | if (pctx->errcode) { |
1918 | pctx->str = "ext2fs_block_iterate"; | |
1919 | fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx); | |
50e1e10f TT |
1920 | return 1; |
1921 | } | |
1922 | ||
1923 | return 0; | |
1924 | } |