Gengetoptify para_fsck.
[paraslash.git] / fsck.c
1 #include "para.h"
2 #include "error.h"
3 #include "osl_core.h"
4 #include "fsck.cmdline.h"
5
6 static struct fsck_args_info conf;
7
8 INIT_FSCK_ERRLISTS;
9 INIT_STDERR_LOGGING(conf.loglevel_arg);
10
11 /* taken from git */
12 signed char hexval_table[256] = {
13 -1, -1, -1, -1, -1, -1, -1, -1, /* 00-07 */
14 -1, -1, -1, -1, -1, -1, -1, -1, /* 08-0f */
15 -1, -1, -1, -1, -1, -1, -1, -1, /* 10-17 */
16 -1, -1, -1, -1, -1, -1, -1, -1, /* 18-1f */
17 -1, -1, -1, -1, -1, -1, -1, -1, /* 20-27 */
18 -1, -1, -1, -1, -1, -1, -1, -1, /* 28-2f */
19 0, 1, 2, 3, 4, 5, 6, 7, /* 30-37 */
20 8, 9, -1, -1, -1, -1, -1, -1, /* 38-3f */
21 -1, 10, 11, 12, 13, 14, 15, -1, /* 40-47 */
22 -1, -1, -1, -1, -1, -1, -1, -1, /* 48-4f */
23 -1, -1, -1, -1, -1, -1, -1, -1, /* 50-57 */
24 -1, -1, -1, -1, -1, -1, -1, -1, /* 58-5f */
25 -1, 10, 11, 12, 13, 14, 15, -1, /* 60-67 */
26 -1, -1, -1, -1, -1, -1, -1, -1, /* 68-67 */
27 -1, -1, -1, -1, -1, -1, -1, -1, /* 70-77 */
28 -1, -1, -1, -1, -1, -1, -1, -1, /* 78-7f */
29 -1, -1, -1, -1, -1, -1, -1, -1, /* 80-87 */
30 -1, -1, -1, -1, -1, -1, -1, -1, /* 88-8f */
31 -1, -1, -1, -1, -1, -1, -1, -1, /* 90-97 */
32 -1, -1, -1, -1, -1, -1, -1, -1, /* 98-9f */
33 -1, -1, -1, -1, -1, -1, -1, -1, /* a0-a7 */
34 -1, -1, -1, -1, -1, -1, -1, -1, /* a8-af */
35 -1, -1, -1, -1, -1, -1, -1, -1, /* b0-b7 */
36 -1, -1, -1, -1, -1, -1, -1, -1, /* b8-bf */
37 -1, -1, -1, -1, -1, -1, -1, -1, /* c0-c7 */
38 -1, -1, -1, -1, -1, -1, -1, -1, /* c8-cf */
39 -1, -1, -1, -1, -1, -1, -1, -1, /* d0-d7 */
40 -1, -1, -1, -1, -1, -1, -1, -1, /* d8-df */
41 -1, -1, -1, -1, -1, -1, -1, -1, /* e0-e7 */
42 -1, -1, -1, -1, -1, -1, -1, -1, /* e8-ef */
43 -1, -1, -1, -1, -1, -1, -1, -1, /* f0-f7 */
44 -1, -1, -1, -1, -1, -1, -1, -1, /* f8-ff */
45 };
46
47 int asc_to_hash(const char *asc_hash, int len, HASH_TYPE *hash)
48 {
49 int i = 0;
50 const unsigned char *asc = (const unsigned char *) asc_hash;
51
52 while (*asc && i++ < len) {
53 unsigned int val = (hexval_table[asc[0]] << 4) | hexval_table[asc[1]];
54 if (val & ~0xff)
55 return -1;
56 *hash++ = val;
57 asc += 2;
58
59 }
60 return 1;
61 }
62
63 /*
64 * check for object boundary violations
65 *
66 * test whether the range pointed to by the index entry for a given cell is
67 * contained in mapped data file. This should always be the case. Otherwise
68 * we are in real trouble.
69 */
70 static int check_range(struct osl_table *t, uint32_t row_num, uint32_t col_num)
71 {
72 char *index_entry;
73 struct osl_object obj;
74 struct osl_column *col;
75 int ret;
76 char *map_start, *obj_start;
77
78 ret = get_cell_index(t, row_num, col_num, &index_entry);
79 if (ret < 0)
80 return ret;
81 ret = get_mapped_object(t, col_num, row_num, &obj);
82 if (ret < 0)
83 return ret;
84 col = t->columns + col_num;
85 obj_start = obj.data;
86 map_start = col->data_map.data;
87 // PARA_INFO_LOG("obj: %p..%p\n", obj_start, obj_start + obj.size);
88 // PARA_INFO_LOG("map: %p..%p\n", map_start, map_start + col->data_map.size);
89 if (obj_start < map_start || obj_start + obj.size > map_start + col->data_map.size) {
90 PARA_CRIT_LOG("range violation in row %u, col %u\n", row_num,
91 col_num);
92 return -E_RANGE_VIOLATION;
93 }
94 PARA_DEBUG_LOG("col %u: ok\n", col_num);
95 return 1;
96 }
97
98 /*
99 * check all cells of the given table for boundary violations
100 */
101 static int check_index_ranges(struct osl_table *t)
102 {
103 int i, j, ret;
104
105 PARA_NOTICE_LOG("checking for range violations in index\n");
106 //PARA_DEBUG_LOG("%d rows. %d columns\n", t->num_rows, t->desc->num_columns);
107 t->num_invalid_rows = 0;
108 for (i = 0; i < t->num_rows; i++) {
109 if (row_is_invalid(t, i)) {
110 t->num_invalid_rows++;
111 continue;
112 }
113 for (j = 0; j < t->desc->num_columns; j++) { /* FXIME */
114 const struct osl_column_description *cd =
115 get_column_description(t->desc, j);
116 if (cd->storage_type != OSL_MAPPED_STORAGE)
117 continue;
118 ret = check_range(t, i, j);
119 if (ret < 0) {
120 if (ret != -E_INVALID_OBJECT &&
121 ret != -E_RANGE_VIOLATION)
122 goto err;
123 if (ret == -E_INVALID_OBJECT) {
124 PARA_CRIT_LOG("row %d, col %d maps to an "
125 "invalid object\n", i, j);
126 }
127 ret = mark_row_invalid(t, i);
128 if (ret < 0)
129 goto err;
130 t->num_invalid_rows++;
131 break;
132 }
133 }
134
135 }
136 if (t->num_invalid_rows)
137 PARA_NOTICE_LOG("ranges OK. %d invalid row(s) detected\n",
138 t->num_invalid_rows);
139 else
140 PARA_INFO_LOG("no invalid rows, no range violations, good\n");
141 return 1;
142 err:
143 return ret;
144 }
145
146 static int move_index_entry(struct osl_table *t, uint32_t dest, uint32_t src)
147 {
148 char *dest_ie, *src_ie;
149 int ret = get_row_index(t, dest, &dest_ie);
150
151 if (ret < 0)
152 return ret;
153 ret = get_row_index(t, src, &src_ie);
154 if (ret < 0)
155 return ret;
156 PARA_INFO_LOG("moving entry #%u to position %u\n", src, dest);
157 memcpy(dest_ie, src_ie, t->row_index_size);
158 return 1;
159 }
160
161 static int map_index(const struct osl_table_description *desc, struct osl_object *map)
162 {
163 char *filename = index_filename(desc);
164 int ret;
165
166 ret = mmap_full_file(filename, O_RDWR, map);
167 PARA_INFO_LOG("mapping index %s: ret: %d, size: %zu\n", filename, ret, map->size);
168 free(filename);
169 return ret;
170 }
171
172 static int prune_invalid_rows_from_index(struct osl_table *t)
173 {
174 uint32_t top = 0, bottom;
175 char *filename;
176 int ret;
177
178 if (!t->num_invalid_rows) {
179 PARA_INFO_LOG("all rows are valid, good\n");
180 return 1;
181 }
182 PARA_NOTICE_LOG("deleting %u invalid row(s) (%d bytes) from index\n",
183 t->num_invalid_rows, t->row_index_size * t->num_invalid_rows);
184 bottom = t->num_rows - 1;
185 while (top < bottom) {
186 if (!row_is_invalid(t, top)) {
187 top++;
188 continue;
189 }
190 while (bottom > top) {
191 if (row_is_invalid(t, bottom)) {
192 bottom--;
193 continue;
194 }
195 /* move bottom index entry to top */
196 move_index_entry(t, top, bottom);
197 bottom--;
198 top++;
199 break;
200 }
201 }
202 PARA_INFO_LOG("unmapping index\n");
203 para_munmap(t->index_map.data, t->index_map.size);
204 filename = index_filename(t->desc);
205 ret = para_truncate(filename, t->row_index_size
206 * t->num_invalid_rows);
207 free(filename);
208 if (ret < 0)
209 return ret;
210 ret = map_index(t->desc, &t->index_map);
211 if (ret < 0)
212 return ret;
213 t->num_rows = table_num_rows(t);
214 return 1;
215 }
216
217 static int check_for_invalid_objects(struct osl_table *t, uint32_t **lost_bytes)
218 {
219 int i, j, ret;
220 const struct osl_column_description *cd;
221 uint32_t *loss = para_malloc(sizeof(uint32_t) * t->desc->num_columns);
222
223 PARA_NOTICE_LOG("looking for mapped objects not contained in index\n");
224 /* first count used bytes */
225 FOR_EACH_MAPPED_COLUMN(i, t, cd) {
226 loss[i] = t->columns[i].data_map.size;
227 for (j = 0; j < t->num_rows; j++) {
228 struct osl_object obj;
229 ret = get_mapped_object(t, i, j, &obj);
230 if (ret >= 0) {
231 loss[i] -= obj.size + 1; /* add one for header byte */
232 continue;
233 }
234 if (ret != -E_INVALID_OBJECT)
235 goto err;
236 PARA_CRIT_LOG("row %d, col %d points to an invalid "
237 "mapped object, bad\n", j, i);
238 }
239 }
240 ret = 0;
241 FOR_EACH_MAPPED_COLUMN(i, t, cd) {
242 if (loss[i]) {
243 PARA_NOTICE_LOG("column %u contains %u lost bytes\n",
244 i, loss[i]);
245 ret = 1;
246 }
247 }
248 if (!ret)
249 PARA_INFO_LOG("all mapped objects are valid, good\n");
250 *lost_bytes = loss;
251 return ret;
252 err:
253 free(loss);
254 return ret;
255 }
256
257 /* prune_invalid_rows() must be run on the table before calling this */
258 static int prune_mapped_column(struct osl_table *t, uint32_t col_num, int fd)
259 {
260 int i, ret;
261 uint32_t written = 0;
262 struct osl_column *col = t->columns + col_num;
263
264 PARA_INFO_LOG("pruning col %u\n", col_num);
265 for (i = 0; i < t->num_rows; i++) {
266 struct osl_object obj;
267 char *index_entry;
268
269 PARA_DEBUG_LOG("checking row %u/%u\n", i, t->num_rows);
270 ret = get_mapped_object(t, col_num, i, &obj);
271 if (ret < 0)
272 return ret;
273 ret = para_write_all(fd, (char *)(obj.data) - 1, obj.size + 1);
274 if (ret < 0)
275 return ret;
276 written += obj.size + 1;
277 ret = get_row_index(t, i, &index_entry);
278 if (ret < 0)
279 return ret;
280 update_cell_index(index_entry, col, written, obj.size);
281 }
282 return 1;
283 }
284
285 static int prune_objects(struct osl_table *t, uint32_t *lost_bytes)
286 {
287 int i, ret;
288 const struct osl_column_description *cd;
289 char **col_filenames = para_calloc(t->desc->num_columns * sizeof(char *));
290 char **new_col_filenames = para_calloc(t->desc->num_columns * sizeof(char *));
291 char *idx_filename = index_filename(t->desc);
292 char *old_idx_filename = make_message("%s.bak", idx_filename);
293 int fd;
294
295 PARA_NOTICE_LOG("removing unreferenced objects from data files\n");
296 /* first make a copy of the index */
297 ret = para_open(old_idx_filename, O_WRONLY | O_CREAT | O_EXCL, 0644);
298 if (ret < 0)
299 goto out_free;
300 fd = ret;
301 ret = para_write_all(fd, t->index_map.data, t->index_map.size);
302 close(fd);
303 if (ret < 0)
304 goto out_free;
305 FOR_EACH_MAPPED_COLUMN(i, t, cd) {
306 if (!lost_bytes[i])
307 continue;
308 col_filenames[i] = column_filename(t, i);
309 new_col_filenames[i] = make_message("%s.fsck", col_filenames[i]);
310 ret = para_open(new_col_filenames[i], O_WRONLY | O_CREAT | O_EXCL, 0644);
311 if (ret < 0)
312 goto out_unlink_data;
313 fd = ret;
314 ret = prune_mapped_column(t, i, fd);
315 close(fd);
316 if (ret < 0)
317 goto out_unlink_data;
318 }
319 ret = unmap_table(t, OSL_MARK_CLEAN);
320 if (ret < 0)
321 goto out_unlink_data;
322 FOR_EACH_MAPPED_COLUMN(i, t, cd) {
323 if (!lost_bytes[i])
324 continue;
325 ret = para_rename(new_col_filenames[i], col_filenames[i]);
326 if (ret < 0) { /* we're kinda screwed here */
327 PARA_CRIT_LOG("rename of col %i failed: %s\n", i,
328 strerror(errno));
329 goto out_free;
330 }
331 }
332 unlink(old_idx_filename);
333 ret = map_table(t, 0);
334 goto out_free;
335 out_unlink_data:
336 FOR_EACH_MAPPED_COLUMN(i, t, cd)
337 unlink(new_col_filenames[i]);
338 out_free:
339 free(old_idx_filename);
340 free(idx_filename);
341 FOR_EACH_MAPPED_COLUMN(i, t, cd) {
342 free(col_filenames[i]);
343 free(new_col_filenames[i]);
344 }
345 free(col_filenames);
346 free(new_col_filenames);
347 return ret;
348 }
349
350 static struct osl_column_description hash_tree_table_cols[] = {
351 {
352 .storage_type = OSL_NO_STORAGE,
353 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
354 .name = "hash",
355 .compare_function = uint32_compare,
356 .data_size = HASH_SIZE
357 },
358 };
359
360 static const struct osl_table_description hash_tree_table_desc = {
361 .dir = "/", /* irrelevant */
362 .name = "hash_tree",
363 .num_columns = 1,
364 .flags = 0,
365 .column_descriptions = hash_tree_table_cols
366 };
367
368 /**
369 * The hash_tree table contains all hashes of the disk storage name column.
370 * of each row. It is used for checking if a disk storage file has a reference
371 * in the table.
372 */
373 static struct osl_table *hash_tree_table;
374 static HASH_TYPE *hashes;
375
376 static int check_disk_storage_column(struct osl_table *t, int row_num,
377 int col_num, char *ds_name, unsigned *num_missing_objects)
378 {
379 int ret;
380 struct stat statbuf;
381 char *path = disk_storage_path(t, col_num, ds_name);
382 unsigned dsnc = t->disk_storage_name_column;
383 struct osl_object obj;
384
385 PARA_DEBUG_LOG("checking if %s is a regular file\n", path);
386 ret = stat(path, &statbuf);
387 if (ret < 0 && errno == ENOENT) {
388 struct osl_row *row;
389 (*num_missing_objects)++;
390 PARA_ERROR_LOG("row %d: object %s is missing\n", row_num, path);
391 PARA_NOTICE_LOG("trying to delete row %d\n", row_num);
392 ret = osl_get_row(t, dsnc, &obj, &row);
393 if (ret < 0) {
394 PARA_CRIT_LOG("unable to get row %d\n", row_num);
395 mark_row_invalid(t, row_num);
396 PARA_CRIT_LOG("Please re-run fsck\n");
397 goto out;
398 }
399 ret = osl_del_row(t, row);
400 if (ret < 0)
401 goto out;
402 }
403 out:
404 free(path);
405 if (ret < 0)
406 return ret;
407 ret = -E_NOT_A_REGULAR_FILE;
408 if (!(S_IFREG & statbuf.st_mode))
409 return ret;
410 return 1;
411 }
412
413 static int check_disk_storage_presence(struct osl_table *t)
414 {
415 int ret, i, j;
416 struct osl_object obj, hash_obj = {.size = HASH_SIZE};
417 char *ds_name;
418 const struct osl_column_description *cd;
419 unsigned dsnc = t->disk_storage_name_column, missing_objects = 0;
420
421 if (!t->num_rows)
422 return 1;
423 hashes = para_malloc(t->num_rows * HASH_SIZE);
424 PARA_NOTICE_LOG("looking for missing disk storage objects\n");
425 for (i = 0; i < t->num_rows; i++) {
426 if (row_is_invalid(t, i))
427 continue;
428 ret = get_mapped_object(t, dsnc, i, &obj);
429 if (ret < 0)
430 return ret;
431 hash_object(&obj, hashes + i * HASH_SIZE);
432 hash_obj.data = hashes + i * HASH_SIZE;
433 osl_add_row(hash_tree_table, &hash_obj);
434 ds_name = disk_storage_name_of_hash(t, hashes + i * HASH_SIZE);
435 FOR_EACH_DISK_STORAGE_COLUMN(j, t, cd) {
436 ret = check_disk_storage_column(t, i, j, ds_name,
437 &missing_objects);
438 if (ret < 0)
439 goto err;
440 }
441 free(ds_name);
442 }
443 if (!missing_objects)
444 PARA_INFO_LOG("all referenced disk storage objects exist, good\n");
445 else
446 PARA_NOTICE_LOG("%d missing object(s)\n", missing_objects);
447 return missing_objects;
448 err:
449 free(ds_name);
450 return ret;
451 }
452
453 static int dummy_compare(const struct osl_object *obj1, const struct osl_object *obj2)
454 {
455 if (obj1 < obj2)
456 return -1;
457 if (obj1 > obj2)
458 return 1;
459 return 0;
460 }
461
462 static unsigned files_pruned;
463
464 int prune_disk_storage_file(const char *path, const void *private_data)
465 {
466 HASH_TYPE hash[HASH_SIZE];
467 unsigned flags = *(unsigned *)private_data;
468 struct osl_object obj = {.data = hash, .size = HASH_SIZE};
469 struct osl_row *row;
470 int ret = -1;
471 size_t len = strlen(path);
472
473
474 PARA_DEBUG_LOG("path: %s\n", path);
475 if (flags & OSL_LARGE_TABLE) {
476 if (len < HASH_SIZE * 2 + 2)
477 goto invalid;
478 // PARA_NOTICE_LOG("p: %s\n", path + len - 2 * HASH_SIZE - 1);
479 ret = asc_to_hash(path + len - 2 * HASH_SIZE - 1, 1, hash);
480 if (ret < 0)
481 goto invalid;
482 ret = asc_to_hash(path + len - 2 * HASH_SIZE + 2, HASH_SIZE - 1,
483 hash + 1);
484 if (ret < 0)
485 goto invalid;
486 // PARA_INFO_LOG("high: %x, low: %x, hash: %x\n", high, low, hash);
487 } else {
488 if (len < 2 * HASH_SIZE + 1)
489 goto invalid;
490 ret = asc_to_hash(path + len - 2 * HASH_SIZE, 2 * HASH_SIZE, hash);
491 if (ret < 0)
492 goto invalid;
493 // PARA_INFO_LOG("hash: %x\n", hash);
494 }
495 #if 0
496 {
497 char asc[2 * HASH_SIZE + 1];
498 hash_to_asc(hash, asc);
499 PARA_NOTICE_LOG("before: %s\nafter: %s\n", path, asc);
500 }
501 #endif
502 ret = osl_get_row(hash_tree_table, 0, &obj, &row);
503 if (ret >= 0)
504 return 1;
505 PARA_NOTICE_LOG("unreferenced file in hash dir: %s\n", path);
506 goto remove;
507 invalid:
508 PARA_ERROR_LOG("could not read hash value of %s\n", path);
509 remove:
510 PARA_NOTICE_LOG("removing %s\n", path);
511 unlink(path);
512 files_pruned++;
513 return 1;
514 }
515
516 static int prune_disk_storage_files(struct osl_table *t)
517 {
518 int i, ret = 1;
519 const struct osl_column_description *cd;
520
521 PARA_NOTICE_LOG("looking for unreferenced disk storage files\n");
522 FOR_EACH_DISK_STORAGE_COLUMN(i, t, cd) {
523 char *dirname = column_filename(t, i);
524 ret = for_each_file_in_dir(dirname, prune_disk_storage_file, &t->desc->flags);
525 free(dirname);
526 }
527 if (files_pruned)
528 PARA_NOTICE_LOG("%u disk storage files deleted\n",
529 files_pruned);
530 else
531 PARA_INFO_LOG("all files are are referenced, good\n");
532 return ret;
533 }
534
535 static int check_disk_storage_columns(struct osl_table *t)
536 {
537 int ret, i;
538 const struct osl_column_description *cd;
539
540 if (!t->num_disk_storage_columns) {
541 PARA_NOTICE_LOG("no disk storage columns in table '%s', "
542 "skipping checks\n", t->desc->name);
543 return 1;
544 }
545 FOR_EACH_COLUMN(i, t->desc, cd)
546 t->desc->column_descriptions[i].compare_function = dummy_compare;
547 ret = init_rbtrees(t);
548 if (ret < 0)
549 return ret;
550 PARA_NOTICE_LOG("creating rbtree for disk storage hash values\n");
551 ret = osl_open_table(&hash_tree_table_desc, &hash_tree_table);
552 if (ret < 0)
553 goto out;
554 ret = check_disk_storage_presence(t);
555 if (ret < 0)
556 goto out_close_hash_tree;
557 ret = prune_disk_storage_files(t);
558 out_close_hash_tree:
559 osl_close_table(hash_tree_table, 0);
560 free(hashes);
561 out:
562 clear_rbtrees(t); /* TODO why are we doing that here? Seems odd */
563 return ret;
564 }
565
566 static void set_dummy_contents(struct osl_table_description *desc)
567 {
568 int i;
569 struct osl_column_description *cd;
570
571 for (i = 0; i < desc->num_columns; i++) {
572 cd = get_column_description(desc, i);
573 cd->compare_function = dummy_compare;
574 }
575 }
576
577 static int fsck_init(struct osl_table_description *desc, struct osl_table **t)
578 {
579 struct osl_object map;
580 int ret = map_index(desc, &map);
581
582 if (ret < 0)
583 goto out;
584 ret = read_table_desc(&map, desc);
585 if (ret < 0) {
586 para_munmap(map.data, map.size);
587 goto out;
588 }
589 set_dummy_contents(desc);
590 ret = init_table_structure(desc, t);
591 if (ret < 0) {
592 para_munmap(map.data, map.size);
593 goto out;
594 }
595 PARA_INFO_LOG("unmapping index\n");
596 para_munmap(map.data, map.size);
597 if (conf.force_given)
598 ret = map_table(*t, (MAP_TBL_FL_IGNORE_DIRTY));
599 else
600 ret = map_table(*t, 0);
601 if (ret >= 0)
602 (*t)->num_rows = table_num_rows(*t);
603 out:
604 return ret;
605 }
606
607 static void fsck_cleanup(struct osl_table *t)
608 {
609 int i;
610 if (t->desc->column_descriptions) {
611 struct osl_column_description *cd;
612 for (i = 0; i < t->desc->num_columns; i++) {
613 cd = get_column_description(t->desc, i);
614 free((char*)cd->name);
615 }
616 free(t->desc->column_descriptions);
617 }
618 if (t) {
619 free(t->columns);
620 free(t);
621 }
622
623 }
624
625 #define ST_CASE(st) case st: return #st
626
627 const char *get_asc_storage_type(enum osl_storage_type st)
628 {
629 switch (st) {
630 ST_CASE(OSL_MAPPED_STORAGE);
631 ST_CASE(OSL_DISK_STORAGE);
632 ST_CASE(OSL_NO_STORAGE);
633 }
634 return NULL;
635 }
636
637 #define APPEND_ASC_SF(sf, flag, str) do { if (sf & flag) { \
638 if (str) str = para_strcat(str, " | " # flag); \
639 else str = para_strdup(#flag); }} while (0)
640
641
642 char *get_asc_storage_flags(enum osl_storage_type sf)
643 {
644 char *asc_sf = NULL;
645
646 APPEND_ASC_SF(sf, OSL_RBTREE, asc_sf);
647 APPEND_ASC_SF(sf, OSL_FIXED_SIZE, asc_sf);
648 APPEND_ASC_SF(sf, OSL_UNIQUE, asc_sf);
649 return asc_sf;
650 }
651
652 static int dump_table_desc(struct osl_table *t, int fd)
653 {
654 const struct osl_table_description *desc = t->desc;
655 int ret, i;
656 struct osl_column_description *cd;
657 char *msg = make_message("static struct osl_column_description cols[] = {\n");
658 ret = para_write_all(fd, msg, strlen(msg));
659 if (ret < 0)
660 return ret;
661 free(msg);
662 FOR_EACH_COLUMN(i, desc, cd) {
663 const char *asc_st;
664 msg = make_message("\t[%d] = {\n", i);
665 ret = para_write_all(fd, msg, strlen(msg));
666 if (ret < 0)
667 return ret;
668 free(msg);
669 asc_st = get_asc_storage_type(cd->storage_type);
670 msg = make_message("\t\t.storage_type = %s,\n", asc_st);
671 ret = para_write_all(fd, msg, strlen(msg));
672 if (ret < 0)
673 return ret;
674 free(msg);
675 if (cd->storage_flags) {
676 char *asc_sf = get_asc_storage_flags(cd->storage_flags);
677 msg = make_message("\t\t,storage_flags = %s,\n", asc_sf);
678 free(asc_sf);
679 ret = para_write_all(fd, msg, strlen(msg));
680 if (ret < 0)
681 return ret;
682 free(msg);
683 }
684 if (cd->storage_flags & OSL_FIXED_SIZE) {
685 msg = make_message("\t\t.data_size = %u,\n", cd->data_size);
686 ret = para_write_all(fd, msg, strlen(msg));
687 if (ret < 0)
688 return ret;
689 free(msg);
690 }
691 msg = make_message("\t\t.name = \"%s\",\n", cd->name);
692 ret = para_write_all(fd, msg, strlen(msg));
693 if (ret < 0)
694 return ret;
695 free(msg);
696 if (cd->storage_flags & OSL_RBTREE) {
697 msg = make_message("\t\t.compare_function = compare_func,\n");
698 ret = para_write_all(fd, msg, strlen(msg));
699 if (ret < 0)
700 return ret;
701 free(msg);
702 }
703 msg = make_message("\t},\n");
704 ret = para_write_all(fd, msg, strlen(msg));
705 if (ret < 0)
706 return ret;
707 free(msg);
708 }
709 msg = make_message("};\n");
710 ret = para_write_all(fd, msg, strlen(msg));
711 if (ret < 0)
712 return ret;
713 free(msg);
714 return 1;
715 }
716
717 static int dump_row(struct osl_table *t, unsigned row_num, const char *row_dir)
718 {
719 int ret, i;
720 const struct osl_column_description *cd;
721 unsigned dsnc;
722 struct osl_object obj;
723 char *ds_name;
724 HASH_TYPE hash[HASH_SIZE];
725 char *filename;
726
727 FOR_EACH_MAPPED_COLUMN(i, t, cd) {
728 ret = get_mapped_object(t, i, row_num, &obj);
729 if (ret < 0)
730 return ret;
731 filename = make_message("%s/col_%03u", row_dir, i);
732 ret = para_write_file(filename, obj.data, obj.size);
733 free(filename);
734 if (ret < 0)
735 return ret;
736 }
737 if (!t->num_disk_storage_columns)
738 return 1;
739 dsnc = t->disk_storage_name_column;
740 ret = get_mapped_object(t, dsnc, i, &obj);
741 if (ret < 0)
742 return ret;
743 hash_object(&obj, hash);
744 ds_name = disk_storage_name_of_hash(t, hash);
745 FOR_EACH_DISK_STORAGE_COLUMN(i, t, cd) {
746 filename = disk_storage_path(t, i, ds_name);
747 ret = mmap_full_file(filename, O_RDONLY, &obj);
748 free(filename);
749 if (ret < 0)
750 goto out;
751 filename = make_message("%s/col_%03u", row_dir, i);
752 ret = para_write_file(filename, obj.data, obj.size);
753 free(filename);
754 if (ret < 0)
755 goto out;
756 }
757 ret = 1;
758 out:
759 free(ds_name);
760 return ret;
761 }
762
763 static int dump_rows(char *dump_dir, struct osl_table *t)
764 {
765 unsigned i;
766 char *current_dir = NULL;
767 int ret = 0;
768
769 for (i = 0; i < t->num_rows; i++) {
770 char *row_dir;
771 if (row_is_invalid(t, i))
772 continue;
773 if (!(i % 1000)) {
774 free(current_dir);
775 current_dir = make_message("%s/rows_%u-%u", dump_dir, i, i + 999);
776 PARA_NOTICE_LOG("dumping rows %u - %u\n", i, i + 999);
777 ret = para_mkdir(current_dir, 0777);
778 if (ret < 0)
779 goto out;
780 }
781 row_dir = make_message("%s/row_%03u", current_dir, i);
782 ret = para_mkdir(row_dir, 0777);
783 if (ret < 0) {
784 free(row_dir);
785 goto out;
786 }
787 ret = dump_row(t, i, row_dir);
788 free(row_dir);
789 if (ret < 0)
790 goto out;
791 }
792 out:
793 free(current_dir);
794 return ret;
795 }
796
797 static int dump_table(char *dump_dir, struct osl_table_description *desc)
798 {
799 struct osl_table *t = NULL;
800 int fd, ret = fsck_init(desc, &t);
801 char *desc_file;
802
803 if (ret < 0)
804 goto out;
805 ret = para_mkdir(dump_dir, 0777);
806 if (ret < 0)
807 goto out;
808 desc_file = make_message("%s/table_description.c", dump_dir);
809 ret = para_open(desc_file, O_WRONLY | O_CREAT | O_EXCL, 0644);
810 free(desc_file);
811 if (ret < 0)
812 goto out;
813 fd = ret;
814 ret = dump_table_desc(t, fd);
815 close(fd);
816 if (ret < 0)
817 goto out;
818 ret = dump_rows(dump_dir, t);
819 out:
820 fsck_cleanup(t);
821 return ret;
822 }
823
824 static int fsck(struct osl_table_description *desc)
825 {
826 int ret;
827 struct osl_table *t = NULL;
828 uint32_t *lost_bytes = NULL;
829
830 ret = fsck_init(desc, &t);
831 if (ret < 0)
832 goto out;
833 ret = check_index_ranges(t);
834 if (ret < 0)
835 goto out_unmap;
836 ret = check_disk_storage_columns(t);
837 if (ret < 0)
838 goto out_unmap;
839 ret = prune_invalid_rows_from_index(t);
840 if (ret < 0)
841 goto out_unmap;
842 ret = check_for_invalid_objects(t, &lost_bytes);
843 if (ret < 0)
844 goto out_unmap;
845 if (ret > 0) { /* at least one mapped data file needs pruning */
846 ret = prune_objects(t, lost_bytes);
847 if (ret < 0)
848 goto out_unmap;
849 }
850 free(lost_bytes);
851 PARA_INFO_LOG("success\n");
852 out_unmap:
853 unmap_table(t, OSL_MARK_CLEAN);
854 out:
855 fsck_cleanup(t);
856 return ret;
857 }
858
859 int main(__a_unused int argc, char **argv)
860 {
861 int i, ret;
862 struct osl_table_description desc = {.column_descriptions = NULL};
863 char *base_dir = NULL;
864
865 ret = fsck_cmdline_parser(argc, argv, &conf);
866 if (ret < 0) {
867 ret = -E_FSCK_SYNTAX;
868 goto out;
869 }
870 HANDLE_VERSION_FLAG("fsck", conf);
871 if (!conf.inputs_num) {
872 /* FIXME: Find all subdirs */
873 ret = -E_FSCK_SYNTAX;
874 goto out;
875 }
876 desc.dir = conf.base_dir_arg;
877 if (!conf.base_dir_given) {
878 char *home = para_homedir();
879 base_dir = make_message("%s/.paraslash/afs_database", home);
880 free(home);
881 desc.dir = base_dir;
882 }
883 for (i = 0; i < conf.inputs_num; i++) {
884 desc.name = conf.inputs[i];
885 if (!conf.no_fsck_given) {
886 ret = fsck(&desc);
887 if (ret < 0)
888 break;
889 }
890 if (conf.dump_dir_given && *conf.dump_dir_arg) {
891 ret = dump_table(conf.dump_dir_arg, &desc);
892 if (ret < 0)
893 break;
894 }
895 }
896 free(base_dir);
897 ret = 1;
898 out:
899 if (ret < 0)
900 PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
901 return ret < 0? EXIT_FAILURE : EXIT_SUCCESS;
902 }