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 * cmp_ctx EXT2FS_ATTR ((unused)),const void * a,const void * b)237 static int dict_uint_cmp(const void *cmp_ctx EXT2FS_ATTR((unused)),
238 const void *a, const void *b)
239 {
240 unsigned int c, d;
241
242 c = VOIDPTR_TO_UINT(a);
243 d = VOIDPTR_TO_UINT(b);
244
245 if (c == d)
246 return 0;
247 else if (c > d)
248 return 1;
249 else
250 return -1;
251 }
252
project_quota_valid(quota_ctx_t qctx)253 static inline int project_quota_valid(quota_ctx_t qctx)
254 {
255 return (EXT2_INODE_SIZE(qctx->fs->super) > EXT2_GOOD_OLD_INODE_SIZE);
256 }
257
get_qid(struct ext2_inode_large * inode,enum quota_type qtype)258 static inline qid_t get_qid(struct ext2_inode_large *inode, enum quota_type qtype)
259 {
260 unsigned int inode_size;
261
262 switch (qtype) {
263 case USRQUOTA:
264 return inode_uid(*inode);
265 case GRPQUOTA:
266 return inode_gid(*inode);
267 case PRJQUOTA:
268 inode_size = EXT2_GOOD_OLD_INODE_SIZE +
269 inode->i_extra_isize;
270 if (inode_includes(inode_size, i_projid))
271 return inode_projid(*inode);
272 return 0;
273 default:
274 return 0;
275 }
276
277 return 0;
278 }
279
quota_dnode_free(dnode_t * node,void * context EXT2FS_ATTR ((unused)))280 static void quota_dnode_free(dnode_t *node,
281 void *context EXT2FS_ATTR((unused)))
282 {
283 void *ptr = node ? dnode_get(node) : 0;
284
285 ext2fs_free_mem(&ptr);
286 free(node);
287 }
288
289 /*
290 * Set up the quota tracking data structures.
291 */
quota_init_context(quota_ctx_t * qctx,ext2_filsys fs,unsigned int qtype_bits)292 errcode_t quota_init_context(quota_ctx_t *qctx, ext2_filsys fs,
293 unsigned int qtype_bits)
294 {
295 errcode_t err;
296 dict_t *dict;
297 quota_ctx_t ctx;
298 enum quota_type qtype;
299
300 err = ext2fs_get_mem(sizeof(struct quota_ctx), &ctx);
301 if (err) {
302 log_debug("Failed to allocate quota context");
303 return err;
304 }
305
306 memset(ctx, 0, sizeof(struct quota_ctx));
307 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
308 ctx->quota_file[qtype] = NULL;
309 if (qtype_bits) {
310 if (((1 << qtype) & qtype_bits) == 0)
311 continue;
312 } else {
313 if (*quota_sb_inump(fs->super, qtype) == 0)
314 continue;
315 }
316 err = ext2fs_get_mem(sizeof(dict_t), &dict);
317 if (err) {
318 log_debug("Failed to allocate dictionary");
319 quota_release_context(&ctx);
320 return err;
321 }
322 ctx->quota_dict[qtype] = dict;
323 dict_init(dict, DICTCOUNT_T_MAX, dict_uint_cmp);
324 dict_set_allocator(dict, NULL, quota_dnode_free, NULL);
325 }
326
327 ctx->fs = fs;
328 *qctx = ctx;
329 return 0;
330 }
331
quota_release_context(quota_ctx_t * qctx)332 void quota_release_context(quota_ctx_t *qctx)
333 {
334 errcode_t err;
335 dict_t *dict;
336 enum quota_type qtype;
337 quota_ctx_t ctx;
338
339 if (!qctx)
340 return;
341
342 ctx = *qctx;
343 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
344 dict = ctx->quota_dict[qtype];
345 ctx->quota_dict[qtype] = 0;
346 if (dict) {
347 dict_free_nodes(dict);
348 free(dict);
349 }
350 if (ctx->quota_file[qtype]) {
351 err = quota_file_close(ctx, ctx->quota_file[qtype]);
352 if (err) {
353 log_err("Cannot close quotafile: %s",
354 strerror(errno));
355 ext2fs_free_mem(&ctx->quota_file[qtype]);
356 }
357 }
358 }
359 *qctx = NULL;
360 free(ctx);
361 }
362
get_dq(dict_t * dict,__u32 key)363 static struct dquot *get_dq(dict_t *dict, __u32 key)
364 {
365 struct dquot *dq;
366 dnode_t *n;
367
368 n = dict_lookup(dict, UINT_TO_VOIDPTR(key));
369 if (n)
370 dq = dnode_get(n);
371 else {
372 if (ext2fs_get_mem(sizeof(struct dquot), &dq)) {
373 log_err("Unable to allocate dquot");
374 return NULL;
375 }
376 memset(dq, 0, sizeof(struct dquot));
377 dict_alloc_insert(dict, UINT_TO_VOIDPTR(key), dq);
378 dq->dq_id = key;
379 }
380 return dq;
381 }
382
383
384 /*
385 * Called to update the blocks used by a particular inode
386 */
quota_data_add(quota_ctx_t qctx,struct ext2_inode_large * inode,ext2_ino_t ino EXT2FS_ATTR ((unused)),qsize_t space)387 void quota_data_add(quota_ctx_t qctx, struct ext2_inode_large *inode,
388 ext2_ino_t ino EXT2FS_ATTR((unused)),
389 qsize_t space)
390 {
391 struct dquot *dq;
392 dict_t *dict;
393 enum quota_type qtype;
394
395 if (!qctx)
396 return;
397
398 log_debug("ADD_DATA: Inode: %u, UID/GID: %u/%u, space: %ld", ino,
399 inode_uid(*inode),
400 inode_gid(*inode), space);
401 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
402 if (qtype == PRJQUOTA && !project_quota_valid(qctx))
403 continue;
404 dict = qctx->quota_dict[qtype];
405 if (dict) {
406 dq = get_dq(dict, get_qid(inode, qtype));
407 if (dq)
408 dq->dq_dqb.dqb_curspace += space;
409 }
410 }
411 }
412
413 /*
414 * Called to remove some blocks used by a particular inode
415 */
quota_data_sub(quota_ctx_t qctx,struct ext2_inode_large * inode,ext2_ino_t ino EXT2FS_ATTR ((unused)),qsize_t space)416 void quota_data_sub(quota_ctx_t qctx, struct ext2_inode_large *inode,
417 ext2_ino_t ino EXT2FS_ATTR((unused)),
418 qsize_t space)
419 {
420 struct dquot *dq;
421 dict_t *dict;
422 enum quota_type qtype;
423
424 if (!qctx)
425 return;
426
427 log_debug("SUB_DATA: Inode: %u, UID/GID: %u/%u, space: %ld", ino,
428 inode_uid(*inode),
429 inode_gid(*inode), space);
430 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
431 if (qtype == PRJQUOTA && !project_quota_valid(qctx))
432 continue;
433 dict = qctx->quota_dict[qtype];
434 if (dict) {
435 dq = get_dq(dict, get_qid(inode, qtype));
436 if (dq)
437 dq->dq_dqb.dqb_curspace -= space;
438 }
439 }
440 }
441
442 /*
443 * Called to count the files used by an inode's user/group
444 */
quota_data_inodes(quota_ctx_t qctx,struct ext2_inode_large * inode,ext2_ino_t ino EXT2FS_ATTR ((unused)),int adjust)445 void quota_data_inodes(quota_ctx_t qctx, struct ext2_inode_large *inode,
446 ext2_ino_t ino EXT2FS_ATTR((unused)), int adjust)
447 {
448 struct dquot *dq;
449 dict_t *dict;
450 enum quota_type qtype;
451
452 if (!qctx)
453 return;
454
455 log_debug("ADJ_INODE: Inode: %u, UID/GID: %u/%u, adjust: %d", ino,
456 inode_uid(*inode),
457 inode_gid(*inode), adjust);
458 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
459 if (qtype == PRJQUOTA && !project_quota_valid(qctx))
460 continue;
461 dict = qctx->quota_dict[qtype];
462 if (dict) {
463 dq = get_dq(dict, get_qid(inode, qtype));
464 if (dq)
465 dq->dq_dqb.dqb_curinodes += adjust;
466 }
467 }
468 }
469
quota_compute_usage(quota_ctx_t qctx)470 errcode_t quota_compute_usage(quota_ctx_t qctx)
471 {
472 ext2_filsys fs;
473 ext2_ino_t ino;
474 errcode_t ret;
475 struct ext2_inode_large *inode;
476 int inode_size;
477 qsize_t space;
478 ext2_inode_scan scan;
479
480 if (!qctx)
481 return 0;
482
483 fs = qctx->fs;
484 ret = ext2fs_open_inode_scan(fs, 0, &scan);
485 if (ret) {
486 log_err("while opening inode scan. ret=%ld", ret);
487 return ret;
488 }
489 inode_size = fs->super->s_inode_size;
490 inode = malloc(inode_size);
491 if (!inode) {
492 ext2fs_close_inode_scan(scan);
493 return ENOMEM;
494 }
495 while (1) {
496 ret = ext2fs_get_next_inode_full(scan, &ino,
497 EXT2_INODE(inode), inode_size);
498 if (ret) {
499 log_err("while getting next inode. ret=%ld", ret);
500 ext2fs_close_inode_scan(scan);
501 free(inode);
502 return ret;
503 }
504 if (ino == 0)
505 break;
506 if (!inode->i_links_count)
507 continue;
508 if (ino == EXT2_ROOT_INO ||
509 (ino >= EXT2_FIRST_INODE(fs->super) &&
510 ino != quota_type2inum(PRJQUOTA, fs->super))) {
511 space = ext2fs_get_stat_i_blocks(fs,
512 EXT2_INODE(inode)) << 9;
513 quota_data_add(qctx, inode, ino, space);
514 quota_data_inodes(qctx, inode, ino, +1);
515 }
516 }
517
518 ext2fs_close_inode_scan(scan);
519 free(inode);
520 return 0;
521 }
522
523 struct scan_dquots_data {
524 dict_t *quota_dict;
525 int update_limits; /* update limits from disk */
526 int update_usage;
527 int check_consistency;
528 int usage_is_inconsistent;
529 };
530
scan_dquots_callback(struct dquot * dquot,void * cb_data)531 static int scan_dquots_callback(struct dquot *dquot, void *cb_data)
532 {
533 struct scan_dquots_data *scan_data = cb_data;
534 dict_t *quota_dict = scan_data->quota_dict;
535 struct dquot *dq;
536
537 dq = get_dq(quota_dict, dquot->dq_id);
538 if (!dq)
539 return -1;
540 dq->dq_id = dquot->dq_id;
541 dq->dq_flags |= DQF_SEEN;
542
543 print_dquot("mem", dq);
544 print_dquot("dsk", dquot);
545
546 /* Check if there is inconsistency */
547 if (scan_data->check_consistency &&
548 (dq->dq_dqb.dqb_curspace != dquot->dq_dqb.dqb_curspace ||
549 dq->dq_dqb.dqb_curinodes != dquot->dq_dqb.dqb_curinodes)) {
550 scan_data->usage_is_inconsistent = 1;
551 fprintf(stderr, "[QUOTA WARNING] Usage inconsistent for ID %u:"
552 "actual (%lld, %lld) != expected (%lld, %lld)\n",
553 dq->dq_id, (long long) dq->dq_dqb.dqb_curspace,
554 (long long) dq->dq_dqb.dqb_curinodes,
555 (long long) dquot->dq_dqb.dqb_curspace,
556 (long long) dquot->dq_dqb.dqb_curinodes);
557 }
558
559 if (scan_data->update_limits) {
560 dq->dq_dqb.dqb_ihardlimit = dquot->dq_dqb.dqb_ihardlimit;
561 dq->dq_dqb.dqb_isoftlimit = dquot->dq_dqb.dqb_isoftlimit;
562 dq->dq_dqb.dqb_bhardlimit = dquot->dq_dqb.dqb_bhardlimit;
563 dq->dq_dqb.dqb_bsoftlimit = dquot->dq_dqb.dqb_bsoftlimit;
564 }
565
566 if (scan_data->update_usage) {
567 dq->dq_dqb.dqb_curspace = dquot->dq_dqb.dqb_curspace;
568 dq->dq_dqb.dqb_curinodes = dquot->dq_dqb.dqb_curinodes;
569 }
570
571 return 0;
572 }
573
574 /*
575 * Read quotas from disk and updates the in-memory information determined by
576 * 'flags' from the on-disk data.
577 */
quota_read_all_dquots(quota_ctx_t qctx,ext2_ino_t qf_ino,enum quota_type qtype,unsigned int flags)578 errcode_t quota_read_all_dquots(quota_ctx_t qctx, ext2_ino_t qf_ino,
579 enum quota_type qtype, unsigned int flags)
580 {
581 struct scan_dquots_data scan_data;
582 struct quota_handle *qh;
583 errcode_t err;
584
585 if (!qctx)
586 return 0;
587
588 err = ext2fs_get_mem(sizeof(struct quota_handle), &qh);
589 if (err) {
590 log_debug("Unable to allocate quota handle");
591 return err;
592 }
593
594 err = quota_file_open(qctx, qh, qf_ino, qtype, -1, 0);
595 if (err) {
596 log_debug("Open quota file failed");
597 goto out;
598 }
599
600 scan_data.quota_dict = qctx->quota_dict[qh->qh_type];
601 scan_data.check_consistency = 0;
602 scan_data.update_limits = !!(flags & QREAD_LIMITS);
603 scan_data.update_usage = !!(flags & QREAD_USAGE);
604 qh->qh_ops->scan_dquots(qh, scan_dquots_callback, &scan_data);
605
606 err = quota_file_close(qctx, qh);
607 if (err) {
608 log_debug("Cannot finish IO on new quotafile: %s",
609 strerror(errno));
610 if (qh->qh_qf.e2_file)
611 ext2fs_file_close(qh->qh_qf.e2_file);
612 }
613 out:
614 ext2fs_free_mem(&qh);
615 return err;
616 }
617
618 /*
619 * Compares the measured quota in qctx->quota_dict with that in the quota inode
620 * on disk and updates the limits in qctx->quota_dict. 'usage_inconsistent' is
621 * set to 1 if the supplied and on-disk quota usage values are not identical.
622 */
quota_compare_and_update(quota_ctx_t qctx,enum quota_type qtype,int * usage_inconsistent)623 errcode_t quota_compare_and_update(quota_ctx_t qctx, enum quota_type qtype,
624 int *usage_inconsistent)
625 {
626 struct quota_handle qh;
627 struct scan_dquots_data scan_data;
628 struct dquot *dq;
629 dnode_t *n;
630 dict_t *dict = qctx->quota_dict[qtype];
631 errcode_t err = 0;
632
633 if (!dict)
634 goto out;
635
636 err = quota_file_open(qctx, &qh, 0, qtype, -1, 0);
637 if (err) {
638 log_debug("Open quota file failed");
639 goto out;
640 }
641
642 scan_data.quota_dict = qctx->quota_dict[qtype];
643 scan_data.update_limits = 1;
644 scan_data.update_usage = 0;
645 scan_data.check_consistency = 1;
646 scan_data.usage_is_inconsistent = 0;
647 err = qh.qh_ops->scan_dquots(&qh, scan_dquots_callback, &scan_data);
648 if (err) {
649 log_debug("Error scanning dquots");
650 *usage_inconsistent = 1;
651 goto out_close_qh;
652 }
653
654 for (n = dict_first(dict); n; n = dict_next(dict, n)) {
655 dq = dnode_get(n);
656 if (!dq)
657 continue;
658 if ((dq->dq_flags & DQF_SEEN) == 0) {
659 fprintf(stderr, "[QUOTA WARNING] "
660 "Missing quota entry ID %d\n", dq->dq_id);
661 scan_data.usage_is_inconsistent = 1;
662 }
663 }
664 *usage_inconsistent = scan_data.usage_is_inconsistent;
665
666 out_close_qh:
667 err = quota_file_close(qctx, &qh);
668 if (err) {
669 log_debug("Cannot close quotafile: %s", error_message(errno));
670 if (qh.qh_qf.e2_file)
671 ext2fs_file_close(qh.qh_qf.e2_file);
672 }
673 out:
674 return err;
675 }
676
parse_quota_opts(const char * opts,int (* func)(char *))677 int parse_quota_opts(const char *opts, int (*func)(char *))
678 {
679 char *buf, *token, *next, *p;
680 int len;
681 int ret = 0;
682
683 len = strlen(opts);
684 buf = malloc(len + 1);
685 if (!buf) {
686 fprintf(stderr,
687 "Couldn't allocate memory to parse quota options!\n");
688 return -ENOMEM;
689 }
690 strcpy(buf, opts);
691 for (token = buf; token && *token; token = next) {
692 p = strchr(token, ',');
693 next = 0;
694 if (p) {
695 *p = 0;
696 next = p + 1;
697 }
698 ret = func(token);
699 if (ret)
700 break;
701 }
702 free(buf);
703 return ret;
704 }
705