1 /*
2 * mkquota.c --- create quota files for a filesystem
3 *
4 * Aditya Kali <adityakali@google.com>
5 */
6 #include "config.h"
7 #include <sys/types.h>
8 #include <sys/stat.h>
9 #include <unistd.h>
10 #include <errno.h>
11 #include <string.h>
12 #include <fcntl.h>
13
14 #include "ext2fs/ext2_fs.h"
15 #include "ext2fs/ext2fs.h"
16 #include "e2p/e2p.h"
17
18 #include "quotaio.h"
19 #include "quotaio_v2.h"
20 #include "quotaio_tree.h"
21 #include "common.h"
22 #include "dict.h"
23
24 /* Needed for architectures where sizeof(int) != sizeof(void *) */
25 #define UINT_TO_VOIDPTR(val) ((void *)(intptr_t)(val))
26 #define VOIDPTR_TO_UINT(ptr) ((unsigned int)(intptr_t)(ptr))
27
28 #if DEBUG_QUOTA
print_inode(struct ext2_inode * inode)29 static void print_inode(struct ext2_inode *inode)
30 {
31 if (!inode)
32 return;
33
34 fprintf(stderr, " i_mode = %d\n", inode->i_mode);
35 fprintf(stderr, " i_uid = %d\n", inode->i_uid);
36 fprintf(stderr, " i_size = %d\n", inode->i_size);
37 fprintf(stderr, " i_atime = %d\n", inode->i_atime);
38 fprintf(stderr, " i_ctime = %d\n", inode->i_ctime);
39 fprintf(stderr, " i_mtime = %d\n", inode->i_mtime);
40 fprintf(stderr, " i_dtime = %d\n", inode->i_dtime);
41 fprintf(stderr, " i_gid = %d\n", inode->i_gid);
42 fprintf(stderr, " i_links_count = %d\n", inode->i_links_count);
43 fprintf(stderr, " i_blocks = %d\n", inode->i_blocks);
44 fprintf(stderr, " i_flags = %d\n", inode->i_flags);
45
46 return;
47 }
48
print_dquot(const char * desc,struct dquot * dq)49 static void print_dquot(const char *desc, struct dquot *dq)
50 {
51 if (desc)
52 fprintf(stderr, "%s: ", desc);
53 fprintf(stderr, "%u %lld:%lld:%lld %lld:%lld:%lld\n",
54 dq->dq_id, (long long) dq->dq_dqb.dqb_curspace,
55 (long long) dq->dq_dqb.dqb_bsoftlimit,
56 (long long) dq->dq_dqb.dqb_bhardlimit,
57 (long long) dq->dq_dqb.dqb_curinodes,
58 (long long) dq->dq_dqb.dqb_isoftlimit,
59 (long long) dq->dq_dqb.dqb_ihardlimit);
60 }
61 #else
print_dquot(const char * desc EXT2FS_ATTR ((unused)),struct dquot * dq EXT2FS_ATTR ((unused)))62 static void print_dquot(const char *desc EXT2FS_ATTR((unused)),
63 struct dquot *dq EXT2FS_ATTR((unused)))
64 {
65 }
66 #endif
67
68 /*
69 * Returns 0 if not able to find the quota file, otherwise returns its
70 * inode number.
71 */
quota_file_exists(ext2_filsys fs,enum quota_type qtype)72 int quota_file_exists(ext2_filsys fs, enum quota_type qtype)
73 {
74 char qf_name[256];
75 errcode_t ret;
76 ext2_ino_t ino;
77
78 if (qtype >= MAXQUOTAS)
79 return -EINVAL;
80
81 quota_get_qf_name(qtype, QFMT_VFS_V1, qf_name);
82
83 ret = ext2fs_lookup(fs, EXT2_ROOT_INO, qf_name, strlen(qf_name), 0,
84 &ino);
85 if (ret)
86 return 0;
87
88 return ino;
89 }
90
91 /*
92 * Set the value for reserved quota inode number field in superblock.
93 */
quota_set_sb_inum(ext2_filsys fs,ext2_ino_t ino,enum quota_type qtype)94 void quota_set_sb_inum(ext2_filsys fs, ext2_ino_t ino, enum quota_type qtype)
95 {
96 ext2_ino_t *inump;
97
98 inump = quota_sb_inump(fs->super, qtype);
99
100 log_debug("setting quota ino in superblock: ino=%u, type=%d", ino,
101 qtype);
102 *inump = ino;
103 ext2fs_mark_super_dirty(fs);
104 }
105
quota_remove_inode(ext2_filsys fs,enum quota_type qtype)106 errcode_t quota_remove_inode(ext2_filsys fs, enum quota_type qtype)
107 {
108 ext2_ino_t qf_ino;
109 errcode_t retval;
110
111 retval = ext2fs_read_bitmaps(fs);
112 if (retval) {
113 log_debug("Couldn't read bitmaps: %s", error_message(retval));
114 return retval;
115 }
116
117 qf_ino = *quota_sb_inump(fs->super, qtype);
118 if (qf_ino == 0)
119 return 0;
120 retval = quota_inode_truncate(fs, qf_ino);
121 if (retval)
122 return retval;
123 if (qf_ino >= EXT2_FIRST_INODE(fs->super)) {
124 struct ext2_inode inode;
125
126 retval = ext2fs_read_inode(fs, qf_ino, &inode);
127 if (!retval) {
128 memset(&inode, 0, sizeof(struct ext2_inode));
129 ext2fs_write_inode(fs, qf_ino, &inode);
130 }
131 ext2fs_inode_alloc_stats2(fs, qf_ino, -1, 0);
132 ext2fs_mark_ib_dirty(fs);
133
134 }
135 quota_set_sb_inum(fs, 0, qtype);
136
137 ext2fs_mark_super_dirty(fs);
138 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
139 retval = ext2fs_write_bitmaps(fs);
140 if (retval) {
141 log_debug("Couldn't write bitmaps: %s", error_message(retval));
142 return retval;
143 }
144 return 0;
145 }
146
write_dquots(dict_t * dict,struct quota_handle * qh)147 static void write_dquots(dict_t *dict, struct quota_handle *qh)
148 {
149 dnode_t *n;
150 struct dquot *dq;
151
152 for (n = dict_first(dict); n; n = dict_next(dict, n)) {
153 dq = dnode_get(n);
154 if (dq) {
155 print_dquot("write", dq);
156 dq->dq_h = qh;
157 update_grace_times(dq);
158 qh->qh_ops->commit_dquot(dq);
159 }
160 }
161 }
162
quota_write_inode(quota_ctx_t qctx,unsigned int qtype_bits)163 errcode_t quota_write_inode(quota_ctx_t qctx, unsigned int qtype_bits)
164 {
165 int retval = 0;
166 enum quota_type qtype;
167 dict_t *dict;
168 ext2_filsys fs;
169 struct quota_handle *h = NULL;
170 int fmt = QFMT_VFS_V1;
171
172 if (!qctx)
173 return 0;
174
175 fs = qctx->fs;
176 retval = ext2fs_get_mem(sizeof(struct quota_handle), &h);
177 if (retval) {
178 log_debug("Unable to allocate quota handle: %s",
179 error_message(retval));
180 goto out;
181 }
182
183 retval = ext2fs_read_bitmaps(fs);
184 if (retval) {
185 log_debug("Couldn't read bitmaps: %s", error_message(retval));
186 goto out;
187 }
188
189 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
190 if (((1 << qtype) & qtype_bits) == 0)
191 continue;
192
193 dict = qctx->quota_dict[qtype];
194 if (!dict)
195 continue;
196
197 retval = quota_file_create(h, fs, qtype, fmt);
198 if (retval) {
199 log_debug("Cannot initialize io on quotafile: %s",
200 error_message(retval));
201 goto out;
202 }
203
204 write_dquots(dict, h);
205 retval = quota_file_close(qctx, h);
206 if (retval) {
207 log_debug("Cannot finish IO on new quotafile: %s",
208 strerror(errno));
209 if (h->qh_qf.e2_file)
210 ext2fs_file_close(h->qh_qf.e2_file);
211 (void) quota_inode_truncate(fs, h->qh_qf.ino);
212 goto out;
213 }
214
215 /* Set quota inode numbers in superblock. */
216 quota_set_sb_inum(fs, h->qh_qf.ino, qtype);
217 ext2fs_mark_super_dirty(fs);
218 ext2fs_mark_bb_dirty(fs);
219 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
220 }
221
222 retval = ext2fs_write_bitmaps(fs);
223 if (retval) {
224 log_debug("Couldn't write bitmaps: %s", error_message(retval));
225 goto out;
226 }
227 out:
228 if (h)
229 ext2fs_free_mem(&h);
230 return retval;
231 }
232
233 /******************************************************************/
234 /* Helper functions for computing quota in memory. */
235 /******************************************************************/
236
dict_uint_cmp(const void * a,const void * b)237 static int dict_uint_cmp(const void *a, const void *b)
238 {
239 unsigned int c, d;
240
241 c = VOIDPTR_TO_UINT(a);
242 d = VOIDPTR_TO_UINT(b);
243
244 if (c == d)
245 return 0;
246 else if (c > d)
247 return 1;
248 else
249 return -1;
250 }
251
project_quota_valid(quota_ctx_t qctx)252 static inline int project_quota_valid(quota_ctx_t qctx)
253 {
254 return (EXT2_INODE_SIZE(qctx->fs->super) > EXT2_GOOD_OLD_INODE_SIZE);
255 }
256
get_qid(struct ext2_inode_large * inode,enum quota_type qtype)257 static inline qid_t get_qid(struct ext2_inode_large *inode, enum quota_type qtype)
258 {
259 unsigned int inode_size;
260
261 switch (qtype) {
262 case USRQUOTA:
263 return inode_uid(*inode);
264 case GRPQUOTA:
265 return inode_gid(*inode);
266 case PRJQUOTA:
267 inode_size = EXT2_GOOD_OLD_INODE_SIZE +
268 inode->i_extra_isize;
269 if (inode_includes(inode_size, i_projid))
270 return inode_projid(*inode);
271 return 0;
272 default:
273 return 0;
274 }
275
276 return 0;
277 }
278
quota_dnode_free(dnode_t * node,void * context EXT2FS_ATTR ((unused)))279 static void quota_dnode_free(dnode_t *node,
280 void *context EXT2FS_ATTR((unused)))
281 {
282 void *ptr = node ? dnode_get(node) : 0;
283
284 ext2fs_free_mem(&ptr);
285 free(node);
286 }
287
288 /*
289 * Set up the quota tracking data structures.
290 */
quota_init_context(quota_ctx_t * qctx,ext2_filsys fs,unsigned int qtype_bits)291 errcode_t quota_init_context(quota_ctx_t *qctx, ext2_filsys fs,
292 unsigned int qtype_bits)
293 {
294 errcode_t err;
295 dict_t *dict;
296 quota_ctx_t ctx;
297 enum quota_type qtype;
298
299 err = ext2fs_get_mem(sizeof(struct quota_ctx), &ctx);
300 if (err) {
301 log_debug("Failed to allocate quota context");
302 return err;
303 }
304
305 memset(ctx, 0, sizeof(struct quota_ctx));
306 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
307 ctx->quota_file[qtype] = NULL;
308 if (qtype_bits) {
309 if (((1 << qtype) & qtype_bits) == 0)
310 continue;
311 } else {
312 if (*quota_sb_inump(fs->super, qtype) == 0)
313 continue;
314 }
315 err = ext2fs_get_mem(sizeof(dict_t), &dict);
316 if (err) {
317 log_debug("Failed to allocate dictionary");
318 quota_release_context(&ctx);
319 return err;
320 }
321 ctx->quota_dict[qtype] = dict;
322 dict_init(dict, DICTCOUNT_T_MAX, dict_uint_cmp);
323 dict_set_allocator(dict, NULL, quota_dnode_free, NULL);
324 }
325
326 ctx->fs = fs;
327 *qctx = ctx;
328 return 0;
329 }
330
quota_release_context(quota_ctx_t * qctx)331 void quota_release_context(quota_ctx_t *qctx)
332 {
333 errcode_t err;
334 dict_t *dict;
335 enum quota_type qtype;
336 quota_ctx_t ctx;
337
338 if (!qctx)
339 return;
340
341 ctx = *qctx;
342 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
343 dict = ctx->quota_dict[qtype];
344 ctx->quota_dict[qtype] = 0;
345 if (dict) {
346 dict_free_nodes(dict);
347 free(dict);
348 }
349 if (ctx->quota_file[qtype]) {
350 err = quota_file_close(ctx, ctx->quota_file[qtype]);
351 if (err) {
352 log_err("Cannot close quotafile: %s",
353 strerror(errno));
354 ext2fs_free_mem(&ctx->quota_file[qtype]);
355 }
356 }
357 }
358 *qctx = NULL;
359 free(ctx);
360 }
361
get_dq(dict_t * dict,__u32 key)362 static struct dquot *get_dq(dict_t *dict, __u32 key)
363 {
364 struct dquot *dq;
365 dnode_t *n;
366
367 n = dict_lookup(dict, UINT_TO_VOIDPTR(key));
368 if (n)
369 dq = dnode_get(n);
370 else {
371 if (ext2fs_get_mem(sizeof(struct dquot), &dq)) {
372 log_err("Unable to allocate dquot");
373 return NULL;
374 }
375 memset(dq, 0, sizeof(struct dquot));
376 dict_alloc_insert(dict, UINT_TO_VOIDPTR(key), dq);
377 dq->dq_id = key;
378 }
379 return dq;
380 }
381
382
383 /*
384 * Called to update the blocks used by a particular inode
385 */
quota_data_add(quota_ctx_t qctx,struct ext2_inode_large * inode,ext2_ino_t ino EXT2FS_ATTR ((unused)),qsize_t space)386 void quota_data_add(quota_ctx_t qctx, struct ext2_inode_large *inode,
387 ext2_ino_t ino EXT2FS_ATTR((unused)),
388 qsize_t space)
389 {
390 struct dquot *dq;
391 dict_t *dict;
392 enum quota_type qtype;
393
394 if (!qctx)
395 return;
396
397 log_debug("ADD_DATA: Inode: %u, UID/GID: %u/%u, space: %ld", ino,
398 inode_uid(*inode),
399 inode_gid(*inode), space);
400 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
401 if (qtype == PRJQUOTA && !project_quota_valid(qctx))
402 continue;
403 dict = qctx->quota_dict[qtype];
404 if (dict) {
405 dq = get_dq(dict, get_qid(inode, qtype));
406 if (dq)
407 dq->dq_dqb.dqb_curspace += space;
408 }
409 }
410 }
411
412 /*
413 * Called to remove some blocks used by a particular inode
414 */
quota_data_sub(quota_ctx_t qctx,struct ext2_inode_large * inode,ext2_ino_t ino EXT2FS_ATTR ((unused)),qsize_t space)415 void quota_data_sub(quota_ctx_t qctx, struct ext2_inode_large *inode,
416 ext2_ino_t ino EXT2FS_ATTR((unused)),
417 qsize_t space)
418 {
419 struct dquot *dq;
420 dict_t *dict;
421 enum quota_type qtype;
422
423 if (!qctx)
424 return;
425
426 log_debug("SUB_DATA: Inode: %u, UID/GID: %u/%u, space: %ld", ino,
427 inode_uid(*inode),
428 inode_gid(*inode), space);
429 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
430 if (qtype == PRJQUOTA && !project_quota_valid(qctx))
431 continue;
432 dict = qctx->quota_dict[qtype];
433 if (dict) {
434 dq = get_dq(dict, get_qid(inode, qtype));
435 dq->dq_dqb.dqb_curspace -= space;
436 }
437 }
438 }
439
440 /*
441 * Called to count the files used by an inode's user/group
442 */
quota_data_inodes(quota_ctx_t qctx,struct ext2_inode_large * inode,ext2_ino_t ino EXT2FS_ATTR ((unused)),int adjust)443 void quota_data_inodes(quota_ctx_t qctx, struct ext2_inode_large *inode,
444 ext2_ino_t ino EXT2FS_ATTR((unused)), int adjust)
445 {
446 struct dquot *dq;
447 dict_t *dict;
448 enum quota_type qtype;
449
450 if (!qctx)
451 return;
452
453 log_debug("ADJ_INODE: Inode: %u, UID/GID: %u/%u, adjust: %d", ino,
454 inode_uid(*inode),
455 inode_gid(*inode), adjust);
456 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
457 if (qtype == PRJQUOTA && !project_quota_valid(qctx))
458 continue;
459 dict = qctx->quota_dict[qtype];
460 if (dict) {
461 dq = get_dq(dict, get_qid(inode, qtype));
462 dq->dq_dqb.dqb_curinodes += adjust;
463 }
464 }
465 }
466
quota_compute_usage(quota_ctx_t qctx)467 errcode_t quota_compute_usage(quota_ctx_t qctx)
468 {
469 ext2_filsys fs;
470 ext2_ino_t ino;
471 errcode_t ret;
472 struct ext2_inode_large *inode;
473 int inode_size;
474 qsize_t space;
475 ext2_inode_scan scan;
476
477 if (!qctx)
478 return 0;
479
480 fs = qctx->fs;
481 ret = ext2fs_open_inode_scan(fs, 0, &scan);
482 if (ret) {
483 log_err("while opening inode scan. ret=%ld", ret);
484 return ret;
485 }
486 inode_size = fs->super->s_inode_size;
487 inode = malloc(inode_size);
488 if (!inode) {
489 ext2fs_close_inode_scan(scan);
490 return ENOMEM;
491 }
492 while (1) {
493 ret = ext2fs_get_next_inode_full(scan, &ino,
494 EXT2_INODE(inode), inode_size);
495 if (ret) {
496 log_err("while getting next inode. ret=%ld", ret);
497 ext2fs_close_inode_scan(scan);
498 free(inode);
499 return ret;
500 }
501 if (ino == 0)
502 break;
503 if (inode->i_links_count &&
504 (ino == EXT2_ROOT_INO ||
505 ino >= EXT2_FIRST_INODE(fs->super))) {
506 space = ext2fs_inode_i_blocks(fs,
507 EXT2_INODE(inode)) << 9;
508 quota_data_add(qctx, inode, ino, space);
509 quota_data_inodes(qctx, inode, ino, +1);
510 }
511 }
512
513 ext2fs_close_inode_scan(scan);
514 free(inode);
515 return 0;
516 }
517
518 struct scan_dquots_data {
519 dict_t *quota_dict;
520 int update_limits; /* update limits from disk */
521 int update_usage;
522 int check_consistency;
523 int usage_is_inconsistent;
524 };
525
scan_dquots_callback(struct dquot * dquot,void * cb_data)526 static int scan_dquots_callback(struct dquot *dquot, void *cb_data)
527 {
528 struct scan_dquots_data *scan_data = cb_data;
529 dict_t *quota_dict = scan_data->quota_dict;
530 struct dquot *dq;
531
532 dq = get_dq(quota_dict, dquot->dq_id);
533 dq->dq_id = dquot->dq_id;
534 dq->dq_flags |= DQF_SEEN;
535
536 print_dquot("mem", dq);
537 print_dquot("dsk", dquot);
538
539 /* Check if there is inconsistency */
540 if (scan_data->check_consistency &&
541 (dq->dq_dqb.dqb_curspace != dquot->dq_dqb.dqb_curspace ||
542 dq->dq_dqb.dqb_curinodes != dquot->dq_dqb.dqb_curinodes)) {
543 scan_data->usage_is_inconsistent = 1;
544 fprintf(stderr, "[QUOTA WARNING] Usage inconsistent for ID %u:"
545 "actual (%lld, %lld) != expected (%lld, %lld)\n",
546 dq->dq_id, (long long) dq->dq_dqb.dqb_curspace,
547 (long long) dq->dq_dqb.dqb_curinodes,
548 (long long) dquot->dq_dqb.dqb_curspace,
549 (long long) dquot->dq_dqb.dqb_curinodes);
550 }
551
552 if (scan_data->update_limits) {
553 dq->dq_dqb.dqb_ihardlimit = dquot->dq_dqb.dqb_ihardlimit;
554 dq->dq_dqb.dqb_isoftlimit = dquot->dq_dqb.dqb_isoftlimit;
555 dq->dq_dqb.dqb_bhardlimit = dquot->dq_dqb.dqb_bhardlimit;
556 dq->dq_dqb.dqb_bsoftlimit = dquot->dq_dqb.dqb_bsoftlimit;
557 }
558
559 if (scan_data->update_usage) {
560 dq->dq_dqb.dqb_curspace = dquot->dq_dqb.dqb_curspace;
561 dq->dq_dqb.dqb_curinodes = dquot->dq_dqb.dqb_curinodes;
562 }
563
564 return 0;
565 }
566
567 /*
568 * Read all dquots from quota file into memory
569 */
quota_read_all_dquots(struct quota_handle * qh,quota_ctx_t qctx,int update_limits EXT2FS_ATTR ((unused)))570 static errcode_t quota_read_all_dquots(struct quota_handle *qh,
571 quota_ctx_t qctx,
572 int update_limits EXT2FS_ATTR((unused)))
573 {
574 struct scan_dquots_data scan_data;
575
576 scan_data.quota_dict = qctx->quota_dict[qh->qh_type];
577 scan_data.check_consistency = 0;
578 scan_data.update_limits = 0;
579 scan_data.update_usage = 1;
580
581 return qh->qh_ops->scan_dquots(qh, scan_dquots_callback, &scan_data);
582 }
583
584 /*
585 * Write all memory dquots into quota file
586 */
587 #if 0 /* currently unused, but may be useful in the future? */
588 static errcode_t quota_write_all_dquots(struct quota_handle *qh,
589 quota_ctx_t qctx)
590 {
591 errcode_t err;
592
593 err = ext2fs_read_bitmaps(qctx->fs);
594 if (err)
595 return err;
596 write_dquots(qctx->quota_dict[qh->qh_type], qh);
597 ext2fs_mark_bb_dirty(qctx->fs);
598 qctx->fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
599 ext2fs_write_bitmaps(qctx->fs);
600 return 0;
601 }
602 #endif
603
604 /*
605 * Updates the in-memory quota limits from the given quota inode.
606 */
quota_update_limits(quota_ctx_t qctx,ext2_ino_t qf_ino,enum quota_type qtype)607 errcode_t quota_update_limits(quota_ctx_t qctx, ext2_ino_t qf_ino,
608 enum quota_type qtype)
609 {
610 struct quota_handle *qh;
611 errcode_t err;
612
613 if (!qctx)
614 return 0;
615
616 err = ext2fs_get_mem(sizeof(struct quota_handle), &qh);
617 if (err) {
618 log_debug("Unable to allocate quota handle");
619 return err;
620 }
621
622 err = quota_file_open(qctx, qh, qf_ino, qtype, -1, 0);
623 if (err) {
624 log_debug("Open quota file failed");
625 goto out;
626 }
627
628 quota_read_all_dquots(qh, qctx, 1);
629
630 err = quota_file_close(qctx, qh);
631 if (err) {
632 log_debug("Cannot finish IO on new quotafile: %s",
633 strerror(errno));
634 if (qh->qh_qf.e2_file)
635 ext2fs_file_close(qh->qh_qf.e2_file);
636 }
637 out:
638 ext2fs_free_mem(&qh);
639 return err;
640 }
641
642 /*
643 * Compares the measured quota in qctx->quota_dict with that in the quota inode
644 * on disk and updates the limits in qctx->quota_dict. 'usage_inconsistent' is
645 * set to 1 if the supplied and on-disk quota usage values are not identical.
646 */
quota_compare_and_update(quota_ctx_t qctx,enum quota_type qtype,int * usage_inconsistent)647 errcode_t quota_compare_and_update(quota_ctx_t qctx, enum quota_type qtype,
648 int *usage_inconsistent)
649 {
650 struct quota_handle qh;
651 struct scan_dquots_data scan_data;
652 struct dquot *dq;
653 dnode_t *n;
654 dict_t *dict = qctx->quota_dict[qtype];
655 errcode_t err = 0;
656
657 if (!dict)
658 goto out;
659
660 err = quota_file_open(qctx, &qh, 0, qtype, -1, 0);
661 if (err) {
662 log_debug("Open quota file failed");
663 goto out;
664 }
665
666 scan_data.quota_dict = qctx->quota_dict[qtype];
667 scan_data.update_limits = 1;
668 scan_data.update_usage = 0;
669 scan_data.check_consistency = 1;
670 scan_data.usage_is_inconsistent = 0;
671 err = qh.qh_ops->scan_dquots(&qh, scan_dquots_callback, &scan_data);
672 if (err) {
673 log_debug("Error scanning dquots");
674 goto out_close_qh;
675 }
676
677 for (n = dict_first(dict); n; n = dict_next(dict, n)) {
678 dq = dnode_get(n);
679 if (!dq)
680 continue;
681 if ((dq->dq_flags & DQF_SEEN) == 0) {
682 fprintf(stderr, "[QUOTA WARNING] "
683 "Missing quota entry ID %d\n", dq->dq_id);
684 scan_data.usage_is_inconsistent = 1;
685 }
686 }
687 *usage_inconsistent = scan_data.usage_is_inconsistent;
688
689 out_close_qh:
690 err = quota_file_close(qctx, &qh);
691 if (err) {
692 log_debug("Cannot close quotafile: %s", error_message(errno));
693 if (qh.qh_qf.e2_file)
694 ext2fs_file_close(qh.qh_qf.e2_file);
695 }
696 out:
697 return err;
698 }
699
parse_quota_opts(const char * opts,int (* func)(char *))700 int parse_quota_opts(const char *opts, int (*func)(char *))
701 {
702 char *buf, *token, *next, *p;
703 int len;
704 int ret = 0;
705
706 len = strlen(opts);
707 buf = malloc(len + 1);
708 if (!buf) {
709 fprintf(stderr,
710 "Couldn't allocate memory to parse quota options!\n");
711 return -ENOMEM;
712 }
713 strcpy(buf, opts);
714 for (token = buf; token && *token; token = next) {
715 p = strchr(token, ',');
716 next = 0;
717 if (p) {
718 *p = 0;
719 next = p + 1;
720 }
721 ret = func(token);
722 if (ret)
723 break;
724 }
725 free(buf);
726 return ret;
727 }
728