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Commit | Line | Data |
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3839e657 TT |
1 | /* |
2 | * pass1b.c --- Pass #1b of e2fsck | |
3 | * | |
4 | * This file contains pass1B, pass1C, and pass1D of e2fsck. They are | |
5 | * only invoked if pass 1 discovered blocks which are in use by more | |
6 | * than one inode. | |
efc6f628 | 7 | * |
3839e657 TT |
8 | * Pass1B scans the data blocks of all the inodes again, generating a |
9 | * complete list of duplicate blocks and which inodes have claimed | |
10 | * them. | |
11 | * | |
12 | * Pass1C does a tree-traversal of the filesystem, to determine the | |
13 | * parent directories of these inodes. This step is necessary so that | |
14 | * e2fsck can print out the pathnames of affected inodes. | |
15 | * | |
16 | * Pass1D is a reconciliation pass. For each inode with duplicate | |
17 | * blocks, the user is prompted if s/he would like to clone the file | |
18 | * (so that the file gets a fresh copy of the duplicated blocks) or | |
19 | * simply to delete the file. | |
efc6f628 | 20 | * |
21c84b71 TT |
21 | * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o. |
22 | * | |
23 | * %Begin-Header% | |
24 | * This file may be redistributed under the terms of the GNU Public | |
25 | * License. | |
26 | * %End-Header% | |
efc6f628 | 27 | * |
3839e657 TT |
28 | */ |
29 | ||
d1154eb4 | 30 | #include "config.h" |
3839e657 | 31 | #include <time.h> |
50e1e10f TT |
32 | #ifdef HAVE_ERRNO_H |
33 | #include <errno.h> | |
34 | #endif | |
3839e657 | 35 | |
0c193f82 TT |
36 | #ifdef HAVE_INTTYPES_H |
37 | #include <inttypes.h> | |
38 | #endif | |
39 | ||
d2ee56d8 | 40 | #ifndef HAVE_INTPTR_T |
9c07dc00 | 41 | typedef long intptr_t; |
d2ee56d8 TT |
42 | #endif |
43 | ||
0c193f82 TT |
44 | /* Needed for architectures where sizeof(int) != sizeof(void *) */ |
45 | #define INT_TO_VOIDPTR(val) ((void *)(intptr_t)(val)) | |
46 | #define VOIDPTR_TO_INT(ptr) ((int)(intptr_t)(ptr)) | |
47 | ||
3839e657 TT |
48 | #include <et/com_err.h> |
49 | #include "e2fsck.h" | |
50 | ||
21c84b71 | 51 | #include "problem.h" |
3dca12fb | 52 | #include "support/dict.h" |
21c84b71 | 53 | |
342d847d TT |
54 | /* Define an extension to the ext2 library's block count information */ |
55 | #define BLOCK_COUNT_EXTATTR (-5) | |
56 | ||
f51b4d33 TT |
57 | struct cluster_el { |
58 | blk64_t cluster; | |
59 | struct cluster_el *next; | |
838e773e TT |
60 | }; |
61 | ||
62 | struct inode_el { | |
63 | ext2_ino_t inode; | |
64 | struct inode_el *next; | |
65 | }; | |
66 | ||
f51b4d33 | 67 | struct dup_cluster { |
3839e657 | 68 | int num_bad; |
838e773e | 69 | struct inode_el *inode_list; |
3839e657 TT |
70 | }; |
71 | ||
72 | /* | |
73 | * This structure stores information about a particular inode which | |
74 | * is sharing blocks with other inodes. This information is collected | |
75 | * to display to the user, so that the user knows what files he or she | |
76 | * is dealing with, when trying to decide how to resolve the conflict | |
77 | * of multiply-claimed blocks. | |
78 | */ | |
79 | struct dup_inode { | |
838e773e | 80 | ext2_ino_t dir; |
21c84b71 | 81 | int num_dupblocks; |
bc1ec4b4 | 82 | struct ext2_inode_large inode; |
f51b4d33 | 83 | struct cluster_el *cluster_list; |
3839e657 TT |
84 | }; |
85 | ||
a63745e8 VAH |
86 | static int process_pass1b_block(ext2_filsys fs, blk64_t *blocknr, |
87 | e2_blkcnt_t blockcnt, blk64_t ref_blk, | |
133a56dc | 88 | int ref_offset, void *priv_data); |
838e773e TT |
89 | static void delete_file(e2fsck_t ctx, ext2_ino_t ino, |
90 | struct dup_inode *dp, char *block_buf); | |
974d57d3 TT |
91 | static errcode_t clone_file(e2fsck_t ctx, ext2_ino_t ino, |
92 | struct dup_inode *dp, char* block_buf); | |
f51b4d33 TT |
93 | static int check_if_fs_block(e2fsck_t ctx, blk64_t test_block); |
94 | static int check_if_fs_cluster(e2fsck_t ctx, blk64_t cluster); | |
80c5d7e4 | 95 | |
1b6bf175 TT |
96 | static void pass1b(e2fsck_t ctx, char *block_buf); |
97 | static void pass1c(e2fsck_t ctx, char *block_buf); | |
98 | static void pass1d(e2fsck_t ctx, char *block_buf); | |
3839e657 | 99 | |
3839e657 | 100 | static int dup_inode_count = 0; |
81cae650 | 101 | static int dup_inode_founddir = 0; |
3839e657 | 102 | |
f51b4d33 | 103 | static dict_t clstr_dict, ino_dict; |
838e773e | 104 | |
f3db3566 | 105 | static ext2fs_inode_bitmap inode_dup_map; |
3839e657 | 106 | |
838e773e TT |
107 | static int dict_int_cmp(const void *a, const void *b) |
108 | { | |
0c193f82 | 109 | intptr_t ia, ib; |
838e773e | 110 | |
0c193f82 TT |
111 | ia = (intptr_t)a; |
112 | ib = (intptr_t)b; | |
838e773e TT |
113 | |
114 | return (ia-ib); | |
115 | } | |
116 | ||
117 | /* | |
118 | * Add a duplicate block record | |
119 | */ | |
f51b4d33 | 120 | static void add_dupe(e2fsck_t ctx, ext2_ino_t ino, blk64_t cluster, |
bc1ec4b4 | 121 | struct ext2_inode_large *inode) |
838e773e TT |
122 | { |
123 | dnode_t *n; | |
f51b4d33 | 124 | struct dup_cluster *db; |
838e773e | 125 | struct dup_inode *di; |
f51b4d33 | 126 | struct cluster_el *cluster_el; |
838e773e TT |
127 | struct inode_el *ino_el; |
128 | ||
f51b4d33 | 129 | n = dict_lookup(&clstr_dict, INT_TO_VOIDPTR(cluster)); |
838e773e | 130 | if (n) |
f51b4d33 | 131 | db = (struct dup_cluster *) dnode_get(n); |
838e773e | 132 | else { |
f51b4d33 TT |
133 | db = (struct dup_cluster *) e2fsck_allocate_memory(ctx, |
134 | sizeof(struct dup_cluster), "duplicate cluster header"); | |
838e773e TT |
135 | db->num_bad = 0; |
136 | db->inode_list = 0; | |
f51b4d33 | 137 | dict_alloc_insert(&clstr_dict, INT_TO_VOIDPTR(cluster), db); |
838e773e TT |
138 | } |
139 | ino_el = (struct inode_el *) e2fsck_allocate_memory(ctx, | |
140 | sizeof(struct inode_el), "inode element"); | |
141 | ino_el->inode = ino; | |
142 | ino_el->next = db->inode_list; | |
143 | db->inode_list = ino_el; | |
144 | db->num_bad++; | |
145 | ||
0c193f82 | 146 | n = dict_lookup(&ino_dict, INT_TO_VOIDPTR(ino)); |
838e773e TT |
147 | if (n) |
148 | di = (struct dup_inode *) dnode_get(n); | |
149 | else { | |
150 | di = (struct dup_inode *) e2fsck_allocate_memory(ctx, | |
151 | sizeof(struct dup_inode), "duplicate inode header"); | |
81cae650 JG |
152 | if (ino == EXT2_ROOT_INO) { |
153 | di->dir = EXT2_ROOT_INO; | |
154 | dup_inode_founddir++; | |
155 | } else | |
156 | di->dir = 0; | |
157 | ||
838e773e | 158 | di->num_dupblocks = 0; |
f51b4d33 | 159 | di->cluster_list = 0; |
838e773e | 160 | di->inode = *inode; |
0c193f82 | 161 | dict_alloc_insert(&ino_dict, INT_TO_VOIDPTR(ino), di); |
838e773e | 162 | } |
f51b4d33 TT |
163 | cluster_el = (struct cluster_el *) e2fsck_allocate_memory(ctx, |
164 | sizeof(struct cluster_el), "cluster element"); | |
165 | cluster_el->cluster = cluster; | |
166 | cluster_el->next = di->cluster_list; | |
167 | di->cluster_list = cluster_el; | |
838e773e TT |
168 | di->num_dupblocks++; |
169 | } | |
170 | ||
171 | /* | |
172 | * Free a duplicate inode record | |
173 | */ | |
efc6f628 | 174 | static void inode_dnode_free(dnode_t *node, |
54434927 | 175 | void *context EXT2FS_ATTR((unused))) |
838e773e TT |
176 | { |
177 | struct dup_inode *di; | |
f51b4d33 | 178 | struct cluster_el *p, *next; |
838e773e TT |
179 | |
180 | di = (struct dup_inode *) dnode_get(node); | |
f51b4d33 | 181 | for (p = di->cluster_list; p; p = next) { |
838e773e TT |
182 | next = p->next; |
183 | free(p); | |
184 | } | |
23f75f6e | 185 | free(di); |
838e773e TT |
186 | free(node); |
187 | } | |
188 | ||
189 | /* | |
f51b4d33 | 190 | * Free a duplicate cluster record |
838e773e | 191 | */ |
f51b4d33 TT |
192 | static void cluster_dnode_free(dnode_t *node, |
193 | void *context EXT2FS_ATTR((unused))) | |
838e773e | 194 | { |
f51b4d33 | 195 | struct dup_cluster *dc; |
838e773e TT |
196 | struct inode_el *p, *next; |
197 | ||
f51b4d33 TT |
198 | dc = (struct dup_cluster *) dnode_get(node); |
199 | for (p = dc->inode_list; p; p = next) { | |
838e773e TT |
200 | next = p->next; |
201 | free(p); | |
202 | } | |
f51b4d33 | 203 | free(dc); |
838e773e TT |
204 | free(node); |
205 | } | |
206 | ||
207 | ||
3839e657 TT |
208 | /* |
209 | * Main procedure for handling duplicate blocks | |
210 | */ | |
08b21301 | 211 | void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf) |
3839e657 | 212 | { |
1b6bf175 | 213 | ext2_filsys fs = ctx->fs; |
1b6bf175 | 214 | struct problem_context pctx; |
fea390e2 KC |
215 | #ifdef RESOURCE_TRACK |
216 | struct resource_track rtrack; | |
217 | #endif | |
1b6bf175 TT |
218 | |
219 | clear_problem_context(&pctx); | |
efc6f628 | 220 | |
830b44f4 TT |
221 | pctx.errcode = e2fsck_allocate_inode_bitmap(fs, |
222 | _("multiply claimed inode map"), | |
223 | EXT2FS_BMAP64_RBTREE, "inode_dup_map", | |
224 | &inode_dup_map); | |
1b6bf175 TT |
225 | if (pctx.errcode) { |
226 | fix_problem(ctx, PR_1B_ALLOCATE_IBITMAP_ERROR, &pctx); | |
f8188fff TT |
227 | ctx->flags |= E2F_FLAG_ABORT; |
228 | return; | |
3839e657 | 229 | } |
838e773e TT |
230 | |
231 | dict_init(&ino_dict, DICTCOUNT_T_MAX, dict_int_cmp); | |
f51b4d33 | 232 | dict_init(&clstr_dict, DICTCOUNT_T_MAX, dict_int_cmp); |
838e773e | 233 | dict_set_allocator(&ino_dict, NULL, inode_dnode_free, NULL); |
f51b4d33 | 234 | dict_set_allocator(&clstr_dict, NULL, cluster_dnode_free, NULL); |
efc6f628 | 235 | |
fea390e2 | 236 | init_resource_track(&rtrack, ctx->fs->io); |
1b6bf175 | 237 | pass1b(ctx, block_buf); |
9facd076 | 238 | print_resource_track(ctx, "Pass 1b", &rtrack, ctx->fs->io); |
fea390e2 | 239 | |
fea390e2 | 240 | init_resource_track(&rtrack, ctx->fs->io); |
1b6bf175 | 241 | pass1c(ctx, block_buf); |
9facd076 | 242 | print_resource_track(ctx, "Pass 1c", &rtrack, ctx->fs->io); |
fea390e2 | 243 | |
fea390e2 | 244 | init_resource_track(&rtrack, ctx->fs->io); |
1b6bf175 | 245 | pass1d(ctx, block_buf); |
9facd076 | 246 | print_resource_track(ctx, "Pass 1d", &rtrack, ctx->fs->io); |
fea390e2 | 247 | |
91327df4 DA |
248 | if (ext2fs_has_feature_shared_blocks(ctx->fs->super) && |
249 | (ctx->options & E2F_OPT_UNSHARE_BLOCKS)) { | |
250 | /* | |
251 | * If we successfully managed to unshare all blocks, unset the | |
252 | * shared block feature. | |
253 | */ | |
254 | blk64_t next; | |
255 | int result = ext2fs_find_first_set_block_bitmap2( | |
256 | ctx->block_dup_map, | |
257 | ctx->fs->super->s_first_data_block, | |
258 | ext2fs_blocks_count(ctx->fs->super) - 1, | |
259 | &next); | |
d90c7666 | 260 | if (result == ENOENT && !(ctx->options & E2F_OPT_NO)) { |
91327df4 DA |
261 | ext2fs_clear_feature_shared_blocks(ctx->fs->super); |
262 | ext2fs_mark_super_dirty(ctx->fs); | |
263 | } | |
264 | } | |
265 | ||
3839e657 TT |
266 | /* |
267 | * Time to free all of the accumulated data structures that we | |
268 | * don't need anymore. | |
269 | */ | |
838e773e | 270 | dict_free_nodes(&ino_dict); |
f51b4d33 | 271 | dict_free_nodes(&clstr_dict); |
23f75f6e | 272 | ext2fs_free_inode_bitmap(inode_dup_map); |
3839e657 TT |
273 | } |
274 | ||
275 | /* | |
276 | * Scan the inodes looking for inodes that contain duplicate blocks. | |
277 | */ | |
278 | struct process_block_struct { | |
838e773e | 279 | e2fsck_t ctx; |
86c627ec TT |
280 | ext2_ino_t ino; |
281 | int dup_blocks; | |
9a1d614d | 282 | blk64_t cur_cluster, phys_cluster; |
28b966d7 | 283 | blk64_t last_blk; |
bc1ec4b4 | 284 | struct ext2_inode_large *inode; |
1b6bf175 | 285 | struct problem_context *pctx; |
3839e657 TT |
286 | }; |
287 | ||
08b21301 | 288 | static void pass1b(e2fsck_t ctx, char *block_buf) |
3839e657 | 289 | { |
1b6bf175 | 290 | ext2_filsys fs = ctx->fs; |
24c91184 | 291 | ext2_ino_t ino = 0; |
bc1ec4b4 | 292 | struct ext2_inode_large inode; |
3839e657 | 293 | ext2_inode_scan scan; |
3839e657 | 294 | struct process_block_struct pb; |
1b6bf175 | 295 | struct problem_context pctx; |
28b966d7 | 296 | problem_t op; |
efc6f628 | 297 | |
1b6bf175 | 298 | clear_problem_context(&pctx); |
efc6f628 | 299 | |
151786fc TT |
300 | if (!(ctx->options & E2F_OPT_PREEN)) |
301 | fix_problem(ctx, PR_1B_PASS_HEADER, &pctx); | |
1b6bf175 TT |
302 | pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks, |
303 | &scan); | |
304 | if (pctx.errcode) { | |
305 | fix_problem(ctx, PR_1B_ISCAN_ERROR, &pctx); | |
f8188fff TT |
306 | ctx->flags |= E2F_FLAG_ABORT; |
307 | return; | |
3839e657 | 308 | } |
bc1ec4b4 | 309 | ctx->stashed_inode = EXT2_INODE(&inode); |
1b6bf175 TT |
310 | pb.ctx = ctx; |
311 | pb.pctx = &pctx; | |
133a56dc | 312 | pctx.str = "pass1b"; |
d237a78e | 313 | while (1) { |
0f5eba75 AD |
314 | if (ino % (fs->super->s_inodes_per_group * 4) == 1) { |
315 | if (e2fsck_mmp_update(fs)) | |
316 | fatal_error(ctx, 0); | |
317 | } | |
bc1ec4b4 TT |
318 | pctx.errcode = ext2fs_get_next_inode_full(scan, &ino, |
319 | EXT2_INODE(&inode), sizeof(inode)); | |
d237a78e TT |
320 | if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) |
321 | continue; | |
322 | if (pctx.errcode) { | |
88e172a9 | 323 | pctx.ino = ino; |
d237a78e TT |
324 | fix_problem(ctx, PR_1B_ISCAN_ERROR, &pctx); |
325 | ctx->flags |= E2F_FLAG_ABORT; | |
326 | return; | |
327 | } | |
328 | if (!ino) | |
329 | break; | |
1b6bf175 | 330 | pctx.ino = ctx->stashed_ino = ino; |
3839e657 | 331 | if ((ino != EXT2_BAD_INO) && |
c5d2f50d | 332 | !ext2fs_test_inode_bitmap2(ctx->inode_used_map, ino)) |
d237a78e | 333 | continue; |
3839e657 TT |
334 | |
335 | pb.ino = ino; | |
336 | pb.dup_blocks = 0; | |
838e773e | 337 | pb.inode = &inode; |
b23f2f4d | 338 | pb.cur_cluster = ~0; |
9a1d614d | 339 | pb.phys_cluster = ~0; |
28b966d7 DW |
340 | pb.last_blk = 0; |
341 | pb.pctx->blk = pb.pctx->blk2 = 0; | |
0684a4f3 | 342 | |
bc1ec4b4 | 343 | if (ext2fs_inode_has_valid_blocks2(fs, EXT2_INODE(&inode)) || |
0684a4f3 | 344 | (ino == EXT2_BAD_INO)) |
a63745e8 | 345 | pctx.errcode = ext2fs_block_iterate3(fs, ino, |
15d482ba TT |
346 | BLOCK_FLAG_READ_ONLY, block_buf, |
347 | process_pass1b_block, &pb); | |
7501ce3e | 348 | /* If the feature is not set, attrs will be cleared later anyway */ |
86f3b6cf | 349 | if (ext2fs_has_feature_xattr(fs->super) && |
bc1ec4b4 TT |
350 | ext2fs_file_acl_block(fs, EXT2_INODE(&inode))) { |
351 | blk64_t blk = ext2fs_file_acl_block(fs, EXT2_INODE(&inode)); | |
a63745e8 | 352 | process_pass1b_block(fs, &blk, |
342d847d | 353 | BLOCK_COUNT_EXTATTR, 0, 0, &pb); |
bc1ec4b4 | 354 | ext2fs_file_acl_block_set(fs, EXT2_INODE(&inode), blk); |
7501ce3e | 355 | } |
3839e657 | 356 | if (pb.dup_blocks) { |
28b966d7 DW |
357 | if (ino != EXT2_BAD_INO) { |
358 | op = pctx.blk == pctx.blk2 ? | |
359 | PR_1B_DUP_BLOCK : PR_1B_DUP_RANGE; | |
360 | fix_problem(ctx, op, pb.pctx); | |
361 | } | |
1b6bf175 | 362 | end_problem_latch(ctx, PR_LATCH_DBLOCK); |
838e773e TT |
363 | if (ino >= EXT2_FIRST_INODE(fs->super) || |
364 | ino == EXT2_ROOT_INO) | |
3839e657 TT |
365 | dup_inode_count++; |
366 | } | |
133a56dc TT |
367 | if (pctx.errcode) |
368 | fix_problem(ctx, PR_1B_BLOCK_ITERATE, &pctx); | |
3839e657 TT |
369 | } |
370 | ext2fs_close_inode_scan(scan); | |
71d521c6 | 371 | e2fsck_use_inode_shortcuts(ctx, 0); |
3839e657 TT |
372 | } |
373 | ||
54434927 | 374 | static int process_pass1b_block(ext2_filsys fs EXT2FS_ATTR((unused)), |
a63745e8 | 375 | blk64_t *block_nr, |
b23f2f4d | 376 | e2_blkcnt_t blockcnt, |
a63745e8 | 377 | blk64_t ref_blk EXT2FS_ATTR((unused)), |
54434927 | 378 | int ref_offset EXT2FS_ATTR((unused)), |
53ef44c4 | 379 | void *priv_data) |
3839e657 TT |
380 | { |
381 | struct process_block_struct *p; | |
1b6bf175 | 382 | e2fsck_t ctx; |
9a1d614d | 383 | blk64_t lc, pc; |
28b966d7 | 384 | problem_t op; |
3839e657 | 385 | |
4a05268c | 386 | if (*block_nr == 0) |
3839e657 | 387 | return 0; |
54dc7ca2 | 388 | p = (struct process_block_struct *) priv_data; |
1b6bf175 | 389 | ctx = p->ctx; |
b23f2f4d | 390 | lc = EXT2FS_B2C(fs, blockcnt); |
9a1d614d | 391 | pc = EXT2FS_B2C(fs, *block_nr); |
efc6f628 | 392 | |
c5d2f50d | 393 | if (!ext2fs_test_block_bitmap2(ctx->block_dup_map, *block_nr)) |
b23f2f4d | 394 | goto finish; |
efc6f628 | 395 | |
838e773e TT |
396 | /* OK, this is a duplicate block */ |
397 | if (p->ino != EXT2_BAD_INO) { | |
28b966d7 DW |
398 | if (p->last_blk + 1 != *block_nr) { |
399 | if (p->last_blk) { | |
400 | op = p->pctx->blk == p->pctx->blk2 ? | |
401 | PR_1B_DUP_BLOCK : | |
402 | PR_1B_DUP_RANGE; | |
403 | fix_problem(ctx, op, p->pctx); | |
404 | } | |
405 | p->pctx->blk = *block_nr; | |
406 | } | |
407 | p->pctx->blk2 = *block_nr; | |
408 | p->last_blk = *block_nr; | |
3839e657 | 409 | } |
838e773e | 410 | p->dup_blocks++; |
c5d2f50d | 411 | ext2fs_mark_inode_bitmap2(inode_dup_map, p->ino); |
838e773e | 412 | |
9a1d614d DW |
413 | /* |
414 | * Qualifications for submitting a block for duplicate processing: | |
415 | * It's an extent/indirect block (and has a negative logical offset); | |
416 | * we've crossed a logical cluster boundary; or the physical cluster | |
417 | * suddenly changed, which indicates that blocks in a logical cluster | |
418 | * are mapped to multiple physical clusters. | |
419 | */ | |
420 | if (blockcnt < 0 || lc != p->cur_cluster || pc != p->phys_cluster) | |
b23f2f4d | 421 | add_dupe(ctx, p->ino, EXT2FS_B2C(fs, *block_nr), p->inode); |
efc6f628 | 422 | |
b23f2f4d TT |
423 | finish: |
424 | p->cur_cluster = lc; | |
9a1d614d | 425 | p->phys_cluster = pc; |
3839e657 TT |
426 | return 0; |
427 | } | |
428 | ||
3839e657 TT |
429 | /* |
430 | * Pass 1c: Scan directories for inodes with duplicate blocks. This | |
431 | * is used so that we can print pathnames when prompting the user for | |
432 | * what to do. | |
433 | */ | |
21c84b71 | 434 | struct search_dir_struct { |
3839e657 | 435 | int count; |
86c627ec TT |
436 | ext2_ino_t first_inode; |
437 | ext2_ino_t max_inode; | |
3839e657 TT |
438 | }; |
439 | ||
86c627ec | 440 | static int search_dirent_proc(ext2_ino_t dir, int entry, |
21c84b71 | 441 | struct ext2_dir_entry *dirent, |
efc6f628 | 442 | int offset EXT2FS_ATTR((unused)), |
54434927 | 443 | int blocksize EXT2FS_ATTR((unused)), |
efc6f628 | 444 | char *buf EXT2FS_ATTR((unused)), |
54434927 | 445 | void *priv_data) |
21c84b71 | 446 | { |
54dc7ca2 | 447 | struct search_dir_struct *sd; |
21c84b71 | 448 | struct dup_inode *p; |
838e773e | 449 | dnode_t *n; |
54dc7ca2 TT |
450 | |
451 | sd = (struct search_dir_struct *) priv_data; | |
452 | ||
521e3685 TT |
453 | if (dirent->inode > sd->max_inode) |
454 | /* Should abort this inode, but not everything */ | |
efc6f628 | 455 | return 0; |
521e3685 | 456 | |
838e773e | 457 | if ((dirent->inode < sd->first_inode) || (entry < DIRENT_OTHER_FILE) || |
c5d2f50d | 458 | !ext2fs_test_inode_bitmap2(inode_dup_map, dirent->inode)) |
21c84b71 TT |
459 | return 0; |
460 | ||
0c193f82 | 461 | n = dict_lookup(&ino_dict, INT_TO_VOIDPTR(dirent->inode)); |
838e773e | 462 | if (!n) |
21c84b71 | 463 | return 0; |
838e773e | 464 | p = (struct dup_inode *) dnode_get(n); |
3d51ff87 JG |
465 | if (!p->dir) { |
466 | p->dir = dir; | |
467 | sd->count--; | |
468 | } | |
21c84b71 TT |
469 | |
470 | return(sd->count ? 0 : DIRENT_ABORT); | |
471 | } | |
472 | ||
473 | ||
08b21301 | 474 | static void pass1c(e2fsck_t ctx, char *block_buf) |
3839e657 | 475 | { |
1b6bf175 | 476 | ext2_filsys fs = ctx->fs; |
21c84b71 | 477 | struct search_dir_struct sd; |
1b6bf175 TT |
478 | struct problem_context pctx; |
479 | ||
480 | clear_problem_context(&pctx); | |
3839e657 | 481 | |
151786fc TT |
482 | if (!(ctx->options & E2F_OPT_PREEN)) |
483 | fix_problem(ctx, PR_1C_PASS_HEADER, &pctx); | |
3839e657 | 484 | |
3839e657 TT |
485 | /* |
486 | * Search through all directories to translate inodes to names | |
487 | * (by searching for the containing directory for that inode.) | |
488 | */ | |
81cae650 | 489 | sd.count = dup_inode_count - dup_inode_founddir; |
21c84b71 | 490 | sd.first_inode = EXT2_FIRST_INODE(fs->super); |
521e3685 | 491 | sd.max_inode = fs->super->s_inodes_count; |
21c84b71 TT |
492 | ext2fs_dblist_dir_iterate(fs->dblist, 0, block_buf, |
493 | search_dirent_proc, &sd); | |
efc6f628 | 494 | } |
3839e657 | 495 | |
1b6bf175 | 496 | static void pass1d(e2fsck_t ctx, char *block_buf) |
3839e657 | 497 | { |
1b6bf175 | 498 | ext2_filsys fs = ctx->fs; |
838e773e | 499 | struct dup_inode *p, *t; |
f51b4d33 | 500 | struct dup_cluster *q; |
838e773e | 501 | ext2_ino_t *shared, ino; |
3839e657 TT |
502 | int shared_len; |
503 | int i; | |
3839e657 | 504 | int file_ok; |
521e3685 | 505 | int meta_data = 0; |
21c84b71 | 506 | struct problem_context pctx; |
838e773e | 507 | dnode_t *n, *m; |
f51b4d33 | 508 | struct cluster_el *s; |
838e773e | 509 | struct inode_el *r; |
efc6f628 | 510 | |
1b6bf175 | 511 | clear_problem_context(&pctx); |
efc6f628 | 512 | |
151786fc TT |
513 | if (!(ctx->options & E2F_OPT_PREEN)) |
514 | fix_problem(ctx, PR_1D_PASS_HEADER, &pctx); | |
f8188fff | 515 | e2fsck_read_bitmaps(ctx); |
3839e657 | 516 | |
838e773e | 517 | pctx.num = dup_inode_count; /* dict_count(&ino_dict); */ |
1b6bf175 | 518 | fix_problem(ctx, PR_1D_NUM_DUP_INODES, &pctx); |
86c627ec | 519 | shared = (ext2_ino_t *) e2fsck_allocate_memory(ctx, |
838e773e | 520 | sizeof(ext2_ino_t) * dict_count(&ino_dict), |
54dc7ca2 | 521 | "Shared inode list"); |
838e773e TT |
522 | for (n = dict_first(&ino_dict); n; n = dict_next(&ino_dict, n)) { |
523 | p = (struct dup_inode *) dnode_get(n); | |
3839e657 TT |
524 | shared_len = 0; |
525 | file_ok = 1; | |
0c193f82 | 526 | ino = (ext2_ino_t)VOIDPTR_TO_INT(dnode_getkey(n)); |
5e916143 | 527 | if (ino == EXT2_BAD_INO || ino == EXT2_RESIZE_INO) |
3839e657 TT |
528 | continue; |
529 | ||
530 | /* | |
838e773e TT |
531 | * Find all of the inodes which share blocks with this |
532 | * one. First we find all of the duplicate blocks | |
533 | * belonging to this inode, and then search each block | |
534 | * get the list of inodes, and merge them together. | |
3839e657 | 535 | */ |
f51b4d33 TT |
536 | for (s = p->cluster_list; s; s = s->next) { |
537 | m = dict_lookup(&clstr_dict, | |
538 | INT_TO_VOIDPTR(s->cluster)); | |
838e773e TT |
539 | if (!m) |
540 | continue; /* Should never happen... */ | |
f51b4d33 | 541 | q = (struct dup_cluster *) dnode_get(m); |
3839e657 TT |
542 | if (q->num_bad > 1) |
543 | file_ok = 0; | |
f51b4d33 | 544 | if (check_if_fs_cluster(ctx, s->cluster)) { |
521e3685 TT |
545 | file_ok = 0; |
546 | meta_data = 1; | |
547 | } | |
efc6f628 | 548 | |
3839e657 TT |
549 | /* |
550 | * Add all inodes used by this block to the | |
551 | * shared[] --- which is a unique list, so | |
552 | * if an inode is already in shared[], don't | |
553 | * add it again. | |
554 | */ | |
838e773e TT |
555 | for (r = q->inode_list; r; r = r->next) { |
556 | if (r->inode == ino) | |
3839e657 TT |
557 | continue; |
558 | for (i = 0; i < shared_len; i++) | |
838e773e | 559 | if (shared[i] == r->inode) |
3839e657 TT |
560 | break; |
561 | if (i == shared_len) { | |
838e773e | 562 | shared[shared_len++] = r->inode; |
3839e657 TT |
563 | } |
564 | } | |
565 | } | |
21c84b71 TT |
566 | |
567 | /* | |
568 | * Report the inode that we are working on | |
569 | */ | |
bc1ec4b4 | 570 | pctx.inode = EXT2_INODE(&p->inode); |
838e773e | 571 | pctx.ino = ino; |
21c84b71 TT |
572 | pctx.dir = p->dir; |
573 | pctx.blkcount = p->num_dupblocks; | |
521e3685 | 574 | pctx.num = meta_data ? shared_len+1 : shared_len; |
1b6bf175 | 575 | fix_problem(ctx, PR_1D_DUP_FILE, &pctx); |
21c84b71 TT |
576 | pctx.blkcount = 0; |
577 | pctx.num = 0; | |
efc6f628 | 578 | |
521e3685 | 579 | if (meta_data) |
1b6bf175 | 580 | fix_problem(ctx, PR_1D_SHARE_METADATA, &pctx); |
efc6f628 | 581 | |
3839e657 | 582 | for (i = 0; i < shared_len; i++) { |
0c193f82 | 583 | m = dict_lookup(&ino_dict, INT_TO_VOIDPTR(shared[i])); |
838e773e TT |
584 | if (!m) |
585 | continue; /* should never happen */ | |
586 | t = (struct dup_inode *) dnode_get(m); | |
21c84b71 TT |
587 | /* |
588 | * Report the inode that we are sharing with | |
589 | */ | |
bc1ec4b4 | 590 | pctx.inode = EXT2_INODE(&t->inode); |
838e773e TT |
591 | pctx.ino = shared[i]; |
592 | pctx.dir = t->dir; | |
1b6bf175 | 593 | fix_problem(ctx, PR_1D_DUP_FILE_LIST, &pctx); |
3839e657 | 594 | } |
9a1d614d DW |
595 | /* |
596 | * Even if the file shares blocks with itself, we still need to | |
597 | * clone the blocks. | |
598 | */ | |
599 | if (file_ok && (meta_data ? shared_len+1 : shared_len) != 0) { | |
1b6bf175 | 600 | fix_problem(ctx, PR_1D_DUP_BLOCKS_DEALT, &pctx); |
3839e657 TT |
601 | continue; |
602 | } | |
91327df4 DA |
603 | if ((ctx->options & E2F_OPT_UNSHARE_BLOCKS) || |
604 | fix_problem(ctx, PR_1D_CLONE_QUESTION, &pctx)) { | |
838e773e | 605 | pctx.errcode = clone_file(ctx, ino, p, block_buf); |
1b6bf175 TT |
606 | if (pctx.errcode) |
607 | fix_problem(ctx, PR_1D_CLONE_ERROR, &pctx); | |
608 | else | |
3839e657 | 609 | continue; |
3839e657 | 610 | } |
91327df4 DA |
611 | /* |
612 | * Note: When unsharing blocks, we don't prompt to delete | |
613 | * files. If the clone operation fails than the unshare | |
614 | * operation should fail too. | |
615 | */ | |
616 | if (!(ctx->options & E2F_OPT_UNSHARE_BLOCKS) && | |
617 | fix_problem(ctx, PR_1D_DELETE_QUESTION, &pctx)) | |
838e773e | 618 | delete_file(ctx, ino, p, block_buf); |
3839e657 TT |
619 | else |
620 | ext2fs_unmark_valid(fs); | |
3839e657 | 621 | } |
c4e3d3f3 | 622 | ext2fs_free_mem(&shared); |
3839e657 TT |
623 | } |
624 | ||
7abb2bdc TT |
625 | /* |
626 | * Drop the refcount on the dup_block structure, and clear the entry | |
627 | * in the block_dup_map if appropriate. | |
628 | */ | |
f51b4d33 TT |
629 | static void decrement_badcount(e2fsck_t ctx, blk64_t block, |
630 | struct dup_cluster *p) | |
7abb2bdc TT |
631 | { |
632 | p->num_bad--; | |
633 | if (p->num_bad <= 0 || | |
f51b4d33 TT |
634 | (p->num_bad == 1 && !check_if_fs_block(ctx, block))) { |
635 | if (check_if_fs_cluster(ctx, EXT2FS_B2C(ctx->fs, block))) | |
636 | return; | |
c5d2f50d | 637 | ext2fs_unmark_block_bitmap2(ctx->block_dup_map, block); |
f51b4d33 | 638 | } |
7abb2bdc TT |
639 | } |
640 | ||
3839e657 | 641 | static int delete_file_block(ext2_filsys fs, |
a63745e8 | 642 | blk64_t *block_nr, |
b23f2f4d | 643 | e2_blkcnt_t blockcnt, |
a63745e8 | 644 | blk64_t ref_block EXT2FS_ATTR((unused)), |
54434927 | 645 | int ref_offset EXT2FS_ATTR((unused)), |
54dc7ca2 | 646 | void *priv_data) |
3839e657 | 647 | { |
54dc7ca2 | 648 | struct process_block_struct *pb; |
f51b4d33 | 649 | struct dup_cluster *p; |
838e773e | 650 | dnode_t *n; |
1b6bf175 | 651 | e2fsck_t ctx; |
b23f2f4d | 652 | blk64_t c, lc; |
1b6bf175 | 653 | |
54dc7ca2 | 654 | pb = (struct process_block_struct *) priv_data; |
1b6bf175 | 655 | ctx = pb->ctx; |
3839e657 | 656 | |
4a05268c | 657 | if (*block_nr == 0) |
3839e657 TT |
658 | return 0; |
659 | ||
f51b4d33 | 660 | c = EXT2FS_B2C(fs, *block_nr); |
b23f2f4d | 661 | lc = EXT2FS_B2C(fs, blockcnt); |
c5d2f50d | 662 | if (ext2fs_test_block_bitmap2(ctx->block_dup_map, *block_nr)) { |
f51b4d33 | 663 | n = dict_lookup(&clstr_dict, INT_TO_VOIDPTR(c)); |
838e773e | 664 | if (n) { |
b0f5fa88 EW |
665 | if (lc != pb->cur_cluster) { |
666 | p = (struct dup_cluster *) dnode_get(n); | |
b23f2f4d | 667 | decrement_badcount(ctx, *block_nr, p); |
b0f5fa88 EW |
668 | pb->dup_blocks++; |
669 | } | |
3839e657 TT |
670 | } else |
671 | com_err("delete_file_block", 0, | |
a63745e8 | 672 | _("internal error: can't find dup_blk for %llu\n"), |
3839e657 TT |
673 | *block_nr); |
674 | } else { | |
8dd650ab DW |
675 | if ((*block_nr % EXT2FS_CLUSTER_RATIO(ctx->fs)) == 0) |
676 | ext2fs_block_alloc_stats2(fs, *block_nr, -1); | |
624e4a64 | 677 | pb->dup_blocks++; |
3839e657 | 678 | } |
b23f2f4d | 679 | pb->cur_cluster = lc; |
efc6f628 | 680 | |
3839e657 TT |
681 | return 0; |
682 | } | |
efc6f628 | 683 | |
838e773e TT |
684 | static void delete_file(e2fsck_t ctx, ext2_ino_t ino, |
685 | struct dup_inode *dp, char* block_buf) | |
3839e657 | 686 | { |
1b6bf175 | 687 | ext2_filsys fs = ctx->fs; |
3839e657 | 688 | struct process_block_struct pb; |
133a56dc | 689 | struct problem_context pctx; |
0684a4f3 | 690 | unsigned int count; |
3839e657 | 691 | |
133a56dc | 692 | clear_problem_context(&pctx); |
838e773e | 693 | pctx.ino = pb.ino = ino; |
624e4a64 | 694 | pb.dup_blocks = 0; |
1b6bf175 | 695 | pb.ctx = ctx; |
133a56dc | 696 | pctx.str = "delete_file"; |
b23f2f4d | 697 | pb.cur_cluster = ~0; |
133a56dc | 698 | |
bc1ec4b4 | 699 | if (ext2fs_inode_has_valid_blocks2(fs, EXT2_INODE(&dp->inode))) |
68477355 TT |
700 | pctx.errcode = ext2fs_block_iterate3(fs, ino, |
701 | BLOCK_FLAG_READ_ONLY, | |
702 | block_buf, | |
703 | delete_file_block, &pb); | |
133a56dc TT |
704 | if (pctx.errcode) |
705 | fix_problem(ctx, PR_1B_BLOCK_ITERATE, &pctx); | |
1b6bf175 | 706 | if (ctx->inode_bad_map) |
c5d2f50d | 707 | ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino); |
71ba1375 TT |
708 | if (ctx->inode_reg_map) |
709 | ext2fs_unmark_inode_bitmap2(ctx->inode_reg_map, ino); | |
710 | ext2fs_unmark_inode_bitmap2(ctx->inode_dir_map, ino); | |
711 | ext2fs_unmark_inode_bitmap2(ctx->inode_used_map, ino); | |
68477355 TT |
712 | ext2fs_inode_alloc_stats2(fs, ino, -1, LINUX_S_ISDIR(dp->inode.i_mode)); |
713 | quota_data_sub(ctx->qctx, &dp->inode, ino, | |
714 | pb.dup_blocks * fs->blocksize); | |
715 | quota_data_inodes(ctx->qctx, &dp->inode, ino, -1); | |
0684a4f3 TT |
716 | |
717 | /* Inode may have changed by block_iterate, so reread it */ | |
bc1ec4b4 TT |
718 | e2fsck_read_inode_full(ctx, ino, EXT2_INODE(&dp->inode), |
719 | sizeof(dp->inode), "delete_file"); | |
720 | e2fsck_clear_inode(ctx, ino, EXT2_INODE(&dp->inode), 0, "delete_file"); | |
721 | if (ext2fs_file_acl_block(fs, EXT2_INODE(&dp->inode)) && | |
86f3b6cf | 722 | ext2fs_has_feature_xattr(fs->super)) { |
bc1ec4b4 TT |
723 | blk64_t file_acl_block = ext2fs_file_acl_block(fs, |
724 | EXT2_INODE(&dp->inode)); | |
725 | ||
0684a4f3 | 726 | count = 1; |
bc1ec4b4 | 727 | pctx.errcode = ext2fs_adjust_ea_refcount3(fs, file_acl_block, |
39f5659a | 728 | block_buf, -1, &count, ino); |
0684a4f3 TT |
729 | if (pctx.errcode == EXT2_ET_BAD_EA_BLOCK_NUM) { |
730 | pctx.errcode = 0; | |
731 | count = 1; | |
732 | } | |
733 | if (pctx.errcode) { | |
bc1ec4b4 | 734 | pctx.blk = file_acl_block; |
0684a4f3 TT |
735 | fix_problem(ctx, PR_1B_ADJ_EA_REFCOUNT, &pctx); |
736 | } | |
737 | /* | |
738 | * If the count is zero, then arrange to have the | |
739 | * block deleted. If the block is in the block_dup_map, | |
740 | * also call delete_file_block since it will take care | |
741 | * of keeping the accounting straight. | |
742 | */ | |
743 | if ((count == 0) || | |
c5d2f50d | 744 | ext2fs_test_block_bitmap2(ctx->block_dup_map, |
bc1ec4b4 TT |
745 | file_acl_block)) { |
746 | delete_file_block(fs, &file_acl_block, | |
0684a4f3 | 747 | BLOCK_COUNT_EXTATTR, 0, 0, &pb); |
bc1ec4b4 TT |
748 | ext2fs_file_acl_block_set(fs, EXT2_INODE(&dp->inode), |
749 | file_acl_block); | |
750 | quota_data_sub(ctx->qctx, &dp->inode, ino, | |
751 | fs->blocksize); | |
a63745e8 | 752 | } |
0684a4f3 | 753 | } |
3839e657 TT |
754 | } |
755 | ||
756 | struct clone_struct { | |
757 | errcode_t errcode; | |
f51b4d33 TT |
758 | blk64_t dup_cluster; |
759 | blk64_t alloc_block; | |
9a1d614d | 760 | ext2_ino_t dir, ino; |
3839e657 | 761 | char *buf; |
1b6bf175 | 762 | e2fsck_t ctx; |
bc1ec4b4 | 763 | struct ext2_inode_large *inode; |
09282b8a DW |
764 | |
765 | struct dup_cluster *save_dup_cluster; | |
766 | blk64_t save_blocknr; | |
3839e657 TT |
767 | }; |
768 | ||
09282b8a DW |
769 | /* |
770 | * Decrement the bad count *after* we've shown that (a) we can allocate a | |
771 | * replacement block and (b) remap the file blocks. Unfortunately, there's no | |
772 | * way to find out if the remap succeeded until either the next | |
773 | * clone_file_block() call (an error when remapping the block after returning | |
774 | * BLOCK_CHANGED will halt the iteration) or after block_iterate() returns. | |
775 | * Otherwise, it's possible that we decrease the badcount once in preparation | |
776 | * to remap, then the remap fails (either we can't find a replacement block or | |
777 | * we have to split the extent tree and can't find a new extent block), so we | |
778 | * delete the file, which decreases the badcount again. | |
779 | */ | |
780 | static void deferred_dec_badcount(struct clone_struct *cs) | |
781 | { | |
782 | if (!cs->save_dup_cluster) | |
783 | return; | |
784 | decrement_badcount(cs->ctx, cs->save_blocknr, cs->save_dup_cluster); | |
785 | cs->save_dup_cluster = NULL; | |
786 | } | |
787 | ||
3839e657 | 788 | static int clone_file_block(ext2_filsys fs, |
a63745e8 | 789 | blk64_t *block_nr, |
133a56dc | 790 | e2_blkcnt_t blockcnt, |
a63745e8 | 791 | blk64_t ref_block EXT2FS_ATTR((unused)), |
54434927 | 792 | int ref_offset EXT2FS_ATTR((unused)), |
54dc7ca2 | 793 | void *priv_data) |
3839e657 | 794 | { |
09282b8a | 795 | struct dup_cluster *p = NULL; |
c5d2f50d | 796 | blk64_t new_block; |
3839e657 | 797 | errcode_t retval; |
54dc7ca2 | 798 | struct clone_struct *cs = (struct clone_struct *) priv_data; |
838e773e | 799 | dnode_t *n; |
1b6bf175 | 800 | e2fsck_t ctx; |
f51b4d33 TT |
801 | blk64_t c; |
802 | int is_meta = 0; | |
d90c7666 | 803 | int should_write = 1; |
3839e657 | 804 | |
1b6bf175 | 805 | ctx = cs->ctx; |
09282b8a | 806 | deferred_dec_badcount(cs); |
efc6f628 | 807 | |
4a05268c | 808 | if (*block_nr == 0) |
3839e657 TT |
809 | return 0; |
810 | ||
d90c7666 DA |
811 | if (ext2fs_has_feature_shared_blocks(ctx->fs->super) && |
812 | (ctx->options & E2F_OPT_UNSHARE_BLOCKS) && | |
813 | (ctx->options & E2F_OPT_NO)) | |
814 | should_write = 0; | |
815 | ||
f51b4d33 TT |
816 | c = EXT2FS_B2C(fs, blockcnt); |
817 | if (check_if_fs_cluster(ctx, EXT2FS_B2C(fs, *block_nr))) | |
818 | is_meta = 1; | |
819 | ||
b23f2f4d TT |
820 | if (c == cs->dup_cluster && cs->alloc_block) { |
821 | new_block = cs->alloc_block; | |
822 | goto got_block; | |
823 | } | |
824 | ||
825 | if (ext2fs_test_block_bitmap2(ctx->block_dup_map, *block_nr)) { | |
f51b4d33 TT |
826 | n = dict_lookup(&clstr_dict, |
827 | INT_TO_VOIDPTR(EXT2FS_B2C(fs, *block_nr))); | |
828 | if (!n) { | |
829 | com_err("clone_file_block", 0, | |
830 | _("internal error: can't find dup_blk for %llu\n"), | |
831 | *block_nr); | |
832 | return 0; | |
833 | } | |
834 | ||
835 | p = (struct dup_cluster *) dnode_get(n); | |
f51b4d33 | 836 | |
f51b4d33 | 837 | cs->dup_cluster = c; |
9a1d614d DW |
838 | /* |
839 | * Let's try an implied cluster allocation. If we get the same | |
840 | * cluster back, then we need to find a new block; otherwise, | |
841 | * we're merely fixing the problem of one logical cluster being | |
842 | * mapped to multiple physical clusters. | |
843 | */ | |
844 | new_block = 0; | |
bc1ec4b4 TT |
845 | retval = ext2fs_map_cluster_block(fs, cs->ino, |
846 | EXT2_INODE(cs->inode), | |
9a1d614d DW |
847 | blockcnt, &new_block); |
848 | if (retval == 0 && new_block != 0 && | |
849 | EXT2FS_B2C(ctx->fs, new_block) != | |
850 | EXT2FS_B2C(ctx->fs, *block_nr)) | |
851 | goto cluster_alloc_ok; | |
f51b4d33 TT |
852 | retval = ext2fs_new_block2(fs, 0, ctx->block_found_map, |
853 | &new_block); | |
854 | if (retval) { | |
855 | cs->errcode = retval; | |
856 | return BLOCK_ABORT; | |
857 | } | |
91327df4 DA |
858 | if (ext2fs_has_feature_shared_blocks(fs->super)) { |
859 | /* | |
860 | * Update the block stats so we don't get a prompt to fix block | |
861 | * counts in the final pass. | |
862 | */ | |
863 | ext2fs_block_alloc_stats2(fs, new_block, +1); | |
864 | } | |
9a1d614d | 865 | cluster_alloc_ok: |
f51b4d33 TT |
866 | cs->alloc_block = new_block; |
867 | ||
868 | got_block: | |
869 | new_block &= ~EXT2FS_CLUSTER_MASK(fs); | |
870 | new_block += EXT2FS_CLUSTER_MASK(fs) & blockcnt; | |
871 | if (cs->dir && (blockcnt >= 0)) { | |
872 | retval = ext2fs_set_dir_block2(fs->dblist, | |
873 | cs->dir, new_block, blockcnt); | |
3839e657 TT |
874 | if (retval) { |
875 | cs->errcode = retval; | |
876 | return BLOCK_ABORT; | |
877 | } | |
f51b4d33 | 878 | } |
7b63fff9 | 879 | #if 0 |
f51b4d33 TT |
880 | printf("Cloning block #%lld from %llu to %llu\n", |
881 | blockcnt, *block_nr, new_block); | |
7b63fff9 | 882 | #endif |
f51b4d33 TT |
883 | retval = io_channel_read_blk64(fs->io, *block_nr, 1, cs->buf); |
884 | if (retval) { | |
885 | cs->errcode = retval; | |
886 | return BLOCK_ABORT; | |
887 | } | |
d90c7666 DA |
888 | if (should_write) { |
889 | retval = io_channel_write_blk64(fs->io, new_block, 1, cs->buf); | |
890 | if (retval) { | |
891 | cs->errcode = retval; | |
892 | return BLOCK_ABORT; | |
893 | } | |
f51b4d33 | 894 | } |
09282b8a DW |
895 | cs->save_dup_cluster = (is_meta ? NULL : p); |
896 | cs->save_blocknr = *block_nr; | |
f51b4d33 TT |
897 | *block_nr = new_block; |
898 | ext2fs_mark_block_bitmap2(ctx->block_found_map, new_block); | |
899 | ext2fs_mark_block_bitmap2(fs->block_map, new_block); | |
d90c7666 DA |
900 | |
901 | if (!should_write) { | |
902 | /* Don't try to change extent information; we want e2fsck to | |
903 | * return success. | |
904 | */ | |
905 | return 0; | |
906 | } | |
f51b4d33 | 907 | return BLOCK_CHANGED; |
3839e657 TT |
908 | } |
909 | return 0; | |
910 | } | |
efc6f628 | 911 | |
974d57d3 TT |
912 | static errcode_t clone_file(e2fsck_t ctx, ext2_ino_t ino, |
913 | struct dup_inode *dp, char* block_buf) | |
3839e657 | 914 | { |
1b6bf175 | 915 | ext2_filsys fs = ctx->fs; |
3839e657 TT |
916 | errcode_t retval; |
917 | struct clone_struct cs; | |
133a56dc | 918 | struct problem_context pctx; |
a63745e8 | 919 | blk64_t blk, new_blk; |
838e773e TT |
920 | dnode_t *n; |
921 | struct inode_el *ino_el; | |
f51b4d33 | 922 | struct dup_cluster *dc; |
838e773e | 923 | struct dup_inode *di; |
3839e657 | 924 | |
133a56dc | 925 | clear_problem_context(&pctx); |
3839e657 | 926 | cs.errcode = 0; |
521e3685 | 927 | cs.dir = 0; |
b23f2f4d | 928 | cs.dup_cluster = ~0; |
f51b4d33 | 929 | cs.alloc_block = 0; |
1b6bf175 | 930 | cs.ctx = ctx; |
9a1d614d DW |
931 | cs.ino = ino; |
932 | cs.inode = &dp->inode; | |
09282b8a DW |
933 | cs.save_dup_cluster = NULL; |
934 | cs.save_blocknr = 0; | |
c4e3d3f3 | 935 | retval = ext2fs_get_mem(fs->blocksize, &cs.buf); |
08b21301 TT |
936 | if (retval) |
937 | return retval; | |
521e3685 | 938 | |
c5d2f50d | 939 | if (ext2fs_test_inode_bitmap2(ctx->inode_dir_map, ino)) |
838e773e | 940 | cs.dir = ino; |
133a56dc | 941 | |
838e773e | 942 | pctx.ino = ino; |
133a56dc | 943 | pctx.str = "clone_file"; |
bc1ec4b4 | 944 | if (ext2fs_inode_has_valid_blocks2(fs, EXT2_INODE(&dp->inode))) |
a63745e8 | 945 | pctx.errcode = ext2fs_block_iterate3(fs, ino, 0, block_buf, |
0684a4f3 | 946 | clone_file_block, &cs); |
09282b8a | 947 | deferred_dec_badcount(&cs); |
3839e657 | 948 | ext2fs_mark_bb_dirty(fs); |
133a56dc TT |
949 | if (pctx.errcode) { |
950 | fix_problem(ctx, PR_1B_BLOCK_ITERATE, &pctx); | |
7abb2bdc TT |
951 | retval = pctx.errcode; |
952 | goto errout; | |
3839e657 TT |
953 | } |
954 | if (cs.errcode) { | |
45ff69ff | 955 | com_err("clone_file", cs.errcode, "%s", |
0c4a0726 | 956 | _("returned from clone_file_block")); |
7abb2bdc TT |
957 | retval = cs.errcode; |
958 | goto errout; | |
3839e657 | 959 | } |
0684a4f3 | 960 | /* The inode may have changed on disk, so we have to re-read it */ |
bc1ec4b4 TT |
961 | e2fsck_read_inode_full(ctx, ino, EXT2_INODE(&dp->inode), |
962 | sizeof(dp->inode), "clone file EA"); | |
963 | blk = ext2fs_file_acl_block(fs, EXT2_INODE(&dp->inode)); | |
a63745e8 VAH |
964 | new_blk = blk; |
965 | if (blk && (clone_file_block(fs, &new_blk, | |
7abb2bdc TT |
966 | BLOCK_COUNT_EXTATTR, 0, 0, &cs) == |
967 | BLOCK_CHANGED)) { | |
bc1ec4b4 TT |
968 | ext2fs_file_acl_block_set(fs, EXT2_INODE(&dp->inode), new_blk); |
969 | e2fsck_write_inode_full(ctx, ino, EXT2_INODE(&dp->inode), | |
970 | sizeof(dp->inode), "clone file EA"); | |
342d847d TT |
971 | /* |
972 | * If we cloned the EA block, find all other inodes | |
055866d8 | 973 | * which referred to that EA block, and modify |
342d847d TT |
974 | * them to point to the new EA block. |
975 | */ | |
f51b4d33 TT |
976 | n = dict_lookup(&clstr_dict, |
977 | INT_TO_VOIDPTR(EXT2FS_B2C(fs, blk))); | |
538e654c | 978 | if (!n) { |
efc6f628 | 979 | com_err("clone_file", 0, |
538e654c | 980 | _("internal error: couldn't lookup EA " |
a63745e8 | 981 | "block record for %llu"), blk); |
538e654c BB |
982 | retval = 0; /* OK to stumble on... */ |
983 | goto errout; | |
984 | } | |
f51b4d33 TT |
985 | dc = (struct dup_cluster *) dnode_get(n); |
986 | for (ino_el = dc->inode_list; ino_el; ino_el = ino_el->next) { | |
838e773e | 987 | if (ino_el->inode == ino) |
342d847d | 988 | continue; |
0c193f82 | 989 | n = dict_lookup(&ino_dict, INT_TO_VOIDPTR(ino_el->inode)); |
538e654c | 990 | if (!n) { |
efc6f628 | 991 | com_err("clone_file", 0, |
538e654c | 992 | _("internal error: couldn't lookup EA " |
efc6f628 | 993 | "inode record for %u"), |
538e654c BB |
994 | ino_el->inode); |
995 | retval = 0; /* OK to stumble on... */ | |
996 | goto errout; | |
997 | } | |
838e773e | 998 | di = (struct dup_inode *) dnode_get(n); |
bc1ec4b4 TT |
999 | if (ext2fs_file_acl_block(fs, |
1000 | EXT2_INODE(&di->inode)) == blk) { | |
1001 | ext2fs_file_acl_block_set(fs, | |
1002 | EXT2_INODE(&di->inode), | |
1003 | ext2fs_file_acl_block(fs, EXT2_INODE(&dp->inode))); | |
1004 | e2fsck_write_inode_full(ctx, ino_el->inode, | |
1005 | EXT2_INODE(&di->inode), | |
1006 | sizeof(di->inode), "clone file EA"); | |
f51b4d33 | 1007 | decrement_badcount(ctx, blk, dc); |
7abb2bdc | 1008 | } |
342d847d TT |
1009 | } |
1010 | } | |
7abb2bdc TT |
1011 | retval = 0; |
1012 | errout: | |
c4e3d3f3 | 1013 | ext2fs_free_mem(&cs.buf); |
7abb2bdc | 1014 | return retval; |
3839e657 | 1015 | } |
80c5d7e4 TT |
1016 | |
1017 | /* | |
1018 | * This routine returns 1 if a block overlaps with one of the superblocks, | |
1019 | * group descriptors, inode bitmaps, or block bitmaps. | |
1020 | */ | |
6dc64392 | 1021 | static int check_if_fs_block(e2fsck_t ctx, blk64_t test_block) |
80c5d7e4 TT |
1022 | { |
1023 | ext2_filsys fs = ctx->fs; | |
6dc64392 | 1024 | blk64_t first_block; |
54434927 | 1025 | dgrp_t i; |
efc6f628 | 1026 | |
bb1a46a4 | 1027 | first_block = fs->super->s_first_data_block; |
80c5d7e4 TT |
1028 | for (i = 0; i < fs->group_desc_count; i++) { |
1029 | ||
bb1a46a4 | 1030 | /* Check superblocks/block group descriptors */ |
80c5d7e4 | 1031 | if (ext2fs_bg_has_super(fs, i)) { |
bb1a46a4 ES |
1032 | if (test_block >= first_block && |
1033 | (test_block <= first_block + fs->desc_blocks)) | |
80c5d7e4 TT |
1034 | return 1; |
1035 | } | |
efc6f628 | 1036 | |
80c5d7e4 | 1037 | /* Check the inode table */ |
d7cca6b0 VAH |
1038 | if ((ext2fs_inode_table_loc(fs, i)) && |
1039 | (test_block >= ext2fs_inode_table_loc(fs, i)) && | |
1040 | (test_block < (ext2fs_inode_table_loc(fs, i) + | |
80c5d7e4 TT |
1041 | fs->inode_blocks_per_group))) |
1042 | return 1; | |
1043 | ||
1044 | /* Check the bitmap blocks */ | |
d7cca6b0 VAH |
1045 | if ((test_block == ext2fs_block_bitmap_loc(fs, i)) || |
1046 | (test_block == ext2fs_inode_bitmap_loc(fs, i))) | |
80c5d7e4 | 1047 | return 1; |
efc6f628 | 1048 | |
bb1a46a4 | 1049 | first_block += fs->super->s_blocks_per_group; |
80c5d7e4 TT |
1050 | } |
1051 | return 0; | |
1052 | } | |
f51b4d33 TT |
1053 | |
1054 | /* | |
1055 | * This routine returns 1 if a cluster overlaps with one of the superblocks, | |
1056 | * group descriptors, inode bitmaps, or block bitmaps. | |
1057 | */ | |
1058 | static int check_if_fs_cluster(e2fsck_t ctx, blk64_t cluster) | |
1059 | { | |
1060 | ext2_filsys fs = ctx->fs; | |
1061 | blk64_t first_block; | |
1062 | dgrp_t i; | |
1063 | ||
1064 | first_block = fs->super->s_first_data_block; | |
1065 | for (i = 0; i < fs->group_desc_count; i++) { | |
1066 | ||
1067 | /* Check superblocks/block group descriptors */ | |
1068 | if (ext2fs_bg_has_super(fs, i)) { | |
1069 | if (cluster >= EXT2FS_B2C(fs, first_block) && | |
1070 | (cluster <= EXT2FS_B2C(fs, first_block + | |
1071 | fs->desc_blocks))) | |
1072 | return 1; | |
1073 | } | |
1074 | ||
1075 | /* Check the inode table */ | |
1076 | if ((ext2fs_inode_table_loc(fs, i)) && | |
1077 | (cluster >= EXT2FS_B2C(fs, | |
1078 | ext2fs_inode_table_loc(fs, i))) && | |
1079 | (cluster <= EXT2FS_B2C(fs, | |
1080 | ext2fs_inode_table_loc(fs, i) + | |
1081 | fs->inode_blocks_per_group - 1))) | |
1082 | return 1; | |
1083 | ||
1084 | /* Check the bitmap blocks */ | |
1085 | if ((cluster == EXT2FS_B2C(fs, | |
1086 | ext2fs_block_bitmap_loc(fs, i))) || | |
1087 | (cluster == EXT2FS_B2C(fs, | |
1088 | ext2fs_inode_bitmap_loc(fs, i)))) | |
1089 | return 1; | |
1090 | ||
1091 | first_block += fs->super->s_blocks_per_group; | |
1092 | } | |
1093 | return 0; | |
1094 | } |