repquota.c revision 1.34 1 /* $NetBSD: repquota.c,v 1.34 2012/01/09 15:38:20 dholland Exp $ */
2
3 /*
4 * Copyright (c) 1980, 1990, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Robert Elz at The University of Melbourne.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35 #include <sys/cdefs.h>
36 #ifndef lint
37 __COPYRIGHT("@(#) Copyright (c) 1980, 1990, 1993\
38 The Regents of the University of California. All rights reserved.");
39 #endif /* not lint */
40
41 #ifndef lint
42 #if 0
43 static char sccsid[] = "@(#)repquota.c 8.2 (Berkeley) 11/22/94";
44 #else
45 __RCSID("$NetBSD: repquota.c,v 1.34 2012/01/09 15:38:20 dholland Exp $");
46 #endif
47 #endif /* not lint */
48
49 /*
50 * Quota report
51 */
52 #include <sys/param.h>
53 #include <sys/stat.h>
54 #include <sys/types.h>
55 #include <sys/statvfs.h>
56
57 #include <errno.h>
58 #include <err.h>
59 #include <fstab.h>
60 #include <grp.h>
61 #include <pwd.h>
62 #include <stdio.h>
63 #include <stdlib.h>
64 #include <string.h>
65 #include <unistd.h>
66
67 #include <quota/quota.h>
68 #include <ufs/ufs/quota1.h>
69 #include <quota.h>
70
71 #include "printquota.h"
72 #include "quotautil.h"
73
74 struct fileusage {
75 struct fileusage *fu_next;
76 struct quotaval fu_qv[QUOTA_NLIMITS];
77 uint32_t fu_id;
78 char fu_name[1];
79 /* actually bigger */
80 };
81 #define FUHASH 1024 /* must be power of two */
82 static struct fileusage *fuhead[QUOTA_NCLASS][FUHASH];
83 static uint32_t highid[QUOTA_NCLASS]; /* highest addid()'ed identifier per class */
84 int valid[QUOTA_NCLASS];
85 static struct quotaval defaultqv[QUOTA_NCLASS][QUOTA_NLIMITS];
86
87 static int vflag = 0; /* verbose */
88 static int aflag = 0; /* all file systems */
89 static int Dflag = 0; /* debug */
90 static int hflag = 0; /* humanize */
91 static int xflag = 0; /* export */
92
93
94 static struct fileusage *addid(uint32_t, int, const char *);
95 static struct fileusage *lookup(uint32_t, int);
96 static struct fileusage *qremove(uint32_t, int);
97 static int repquota(const struct statvfs *, int);
98 static int repquota2(const struct statvfs *, int);
99 static int repquota1(const struct statvfs *, int);
100 static void usage(void) __attribute__((__noreturn__));
101 static void printquotas(int, const struct statvfs *, int);
102 static void exportquotas(void);
103
104 int
105 main(int argc, char **argv)
106 {
107 int gflag = 0, uflag = 0, errs = 0;
108 long i, argnum, done = 0;
109 int ch;
110 struct statvfs *fst;
111 int nfst;
112
113 while ((ch = getopt(argc, argv, "Daguhvx")) != -1) {
114 switch(ch) {
115 case 'a':
116 aflag++;
117 break;
118 case 'g':
119 gflag++;
120 break;
121 case 'u':
122 uflag++;
123 break;
124 case 'h':
125 hflag++;
126 break;
127 case 'v':
128 vflag++;
129 break;
130 case 'D':
131 Dflag++;
132 break;
133 case 'x':
134 xflag++;
135 break;
136 default:
137 usage();
138 }
139 }
140 argc -= optind;
141 argv += optind;
142 if (xflag && (argc != 1 || aflag))
143 usage();
144 if (argc == 0 && !aflag)
145 usage();
146 if (!gflag && !uflag) {
147 if (aflag)
148 gflag++;
149 uflag++;
150 }
151
152 nfst = getmntinfo(&fst, MNT_WAIT);
153 if (nfst == 0)
154 errx(1, "no filesystems mounted!");
155 for (i = 0; i < nfst; i++) {
156 if ((fst[i].f_flag & ST_QUOTA) == 0)
157 continue;
158 if (aflag) {
159 if (gflag)
160 errs += repquota(&fst[i], QUOTA_IDTYPE_GROUP);
161 if (uflag)
162 errs += repquota(&fst[i], QUOTA_IDTYPE_USER);
163 continue;
164 }
165 if ((argnum = oneof(fst[i].f_mntonname, argv, argc)) >= 0 ||
166 (argnum = oneof(fst[i].f_mntfromname, argv, argc)) >= 0) {
167 done |= 1U << argnum;
168 if (gflag)
169 errs += repquota(&fst[i], QUOTA_IDTYPE_GROUP);
170 if (uflag)
171 errs += repquota(&fst[i], QUOTA_IDTYPE_USER);
172 }
173 }
174 if (xflag)
175 exportquotas();
176 for (i = 0; i < argc; i++)
177 if ((done & (1U << i)) == 0)
178 warnx("%s not mounted", argv[i]);
179 return errs;
180 }
181
182 static void
183 usage(void)
184 {
185 const char *p = getprogname();
186 fprintf(stderr, "usage: %s [-D] [-v] [-g] [-u] -a\n"
187 "\t%s [-D] [-v] [-g] [-u] filesys ...\n"
188 "\t%s -x [-D] [-g] [-u] filesys\n", p, p, p);
189 exit(1);
190 }
191
192 static int
193 repquota(const struct statvfs *vfs, int idtype)
194 {
195 if (repquota2(vfs, idtype) != 0)
196 return repquota1(vfs, idtype);
197 return 0;
198 }
199
200 static int
201 repquota2(const struct statvfs *vfs, int idtype)
202 {
203 prop_dictionary_t dict, data, cmd;
204 prop_array_t cmds, datas;
205 struct plistref pref;
206 int8_t error8, version = 0;
207 prop_object_iterator_t cmditer, dataiter;
208 struct quotaval *qvp;
209 struct fileusage *fup;
210 const char *strid;
211 uint32_t id;
212 uint64_t *values[QUOTA_NLIMITS];
213
214 dict = quota_prop_create();
215 cmds = prop_array_create();
216 datas = prop_array_create();
217
218 if (dict == NULL || cmds == NULL || datas == NULL)
219 errx(1, "can't allocate proplist");
220 if (!quota_prop_add_command(cmds, "getall",
221 ufs_quota_class_names[idtype], datas))
222 err(1, "prop_add_command");
223 if (!quota_prop_add_command(cmds, "get version",
224 ufs_quota_class_names[idtype], prop_array_create()))
225 err(1, "prop_add_command");
226 if (!prop_dictionary_set(dict, "commands", cmds))
227 err(1, "prop_dictionary_set(command)");
228 if (Dflag)
229 printf("message to kernel:\n%s\n",
230 prop_dictionary_externalize(dict));
231 if (prop_dictionary_send_syscall(dict, &pref) != 0)
232 err(1, "prop_dictionary_send_syscall");
233 prop_object_release(dict);
234
235 if (quotactl(vfs->f_mntonname, &pref) != 0)
236 err(1, "quotactl");
237
238 if (prop_dictionary_recv_syscall(&pref, &dict) != 0) {
239 err(1, "prop_dictionary_recv_syscall");
240 }
241 if (Dflag)
242 printf("reply from kernel:\n%s\n",
243 prop_dictionary_externalize(dict));
244 if ((errno = quota_get_cmds(dict, &cmds)) != 0) {
245 err(1, "quota_get_cmds");
246 }
247 cmditer = prop_array_iterator(cmds);
248 if (cmditer == NULL)
249 err(1, "prop_array_iterator(cmds)");
250
251 while ((cmd = prop_object_iterator_next(cmditer)) != NULL) {
252 const char *cmdstr;
253 if (!prop_dictionary_get_cstring_nocopy(cmd, "command",
254 &cmdstr))
255 err(1, "prop_get(command)");
256
257 if (!prop_dictionary_get_int8(cmd, "return", &error8))
258 err(1, "prop_get(return)");
259
260 if (error8) {
261 prop_object_release(dict);
262 if (error8 != EOPNOTSUPP) {
263 errno = error8;
264 warn("get %s quotas",
265 ufs_quota_class_names[idtype]);
266 }
267 return error8;
268 }
269 datas = prop_dictionary_get(cmd, "data");
270 if (datas == NULL)
271 err(1, "prop_dict_get(datas)");
272
273 if (strcmp("get version", cmdstr) == 0) {
274 data = prop_array_get(datas, 0);
275 if (data == NULL)
276 err(1, "prop_array_get(version)");
277 if (!prop_dictionary_get_int8(data, "version",
278 &version))
279 err(1, "prop_get_int8(version)");
280 continue;
281 }
282 dataiter = prop_array_iterator(datas);
283 if (dataiter == NULL)
284 err(1, "prop_array_iterator");
285
286 valid[idtype] = 0;
287 while ((data = prop_object_iterator_next(dataiter)) != NULL) {
288 valid[idtype] = 1;
289 strid = NULL;
290 if (!prop_dictionary_get_uint32(data, "id", &id)) {
291 if (!prop_dictionary_get_cstring_nocopy(data,
292 "id", &strid))
293 errx(1, "can't find id in quota entry");
294 if (strcmp(strid, "default") != 0) {
295 errx(1,
296 "wrong id string %s in quota entry",
297 strid);
298 }
299 qvp = defaultqv[idtype];
300 } else {
301 if ((fup = lookup(id, idtype)) == 0)
302 fup = addid(id, idtype, (char *)0);
303 qvp = fup->fu_qv;
304 }
305 values[QUOTA_LIMIT_BLOCK] =
306 &qvp[QUOTA_LIMIT_BLOCK].qv_hardlimit;
307 values[QUOTA_LIMIT_FILE] =
308 &qvp[QUOTA_LIMIT_FILE].qv_hardlimit;
309
310 errno = proptoquota64(data, values,
311 ufs_quota_entry_names, UFS_QUOTA_NENTRIES,
312 ufs_quota_limit_names, QUOTA_NLIMITS);
313 if (errno)
314 err(1, "proptoquota64");
315 }
316 prop_object_iterator_release(dataiter);
317 }
318 prop_object_iterator_release(cmditer);
319 prop_object_release(dict);
320 if (xflag == 0 && valid[idtype])
321 printquotas(idtype, vfs, version);
322 return 0;
323 }
324
325 static int
326 repquota1(const struct statvfs *vfs, int idtype)
327 {
328 char qfpathname[MAXPATHLEN];
329 struct fstab *fs;
330 struct fileusage *fup;
331 FILE *qf;
332 uint32_t id;
333 struct dqblk dqbuf;
334 time_t bgrace = MAX_DQ_TIME, igrace = MAX_DQ_TIME;
335 int type = ufsclass2qtype(idtype);
336
337 setfsent();
338 while ((fs = getfsent()) != NULL) {
339 if (strcmp(fs->fs_vfstype, "ffs") == 0 &&
340 strcmp(fs->fs_file, vfs->f_mntonname) == 0)
341 break;
342 }
343 endfsent();
344 if (fs == NULL) {
345 warnx("%s not found in fstab", vfs->f_mntonname);
346 return 1;
347 }
348 if (!hasquota(qfpathname, sizeof(qfpathname), fs, type))
349 return 0;
350
351 if ((qf = fopen(qfpathname, "r")) == NULL) {
352 warn("Cannot open `%s'", qfpathname);
353 return 1;
354 }
355 for (id = 0; ; id++) {
356 fread(&dqbuf, sizeof(struct dqblk), 1, qf);
357 if (feof(qf))
358 break;
359 if (id == 0) {
360 if (dqbuf.dqb_btime > 0)
361 bgrace = dqbuf.dqb_btime;
362 if (dqbuf.dqb_itime > 0)
363 igrace = dqbuf.dqb_itime;
364 }
365 if (dqbuf.dqb_curinodes == 0 && dqbuf.dqb_curblocks == 0 &&
366 dqbuf.dqb_bsoftlimit == 0 && dqbuf.dqb_bhardlimit == 0 &&
367 dqbuf.dqb_isoftlimit == 0 && dqbuf.dqb_ihardlimit == 0)
368 continue;
369 if ((fup = lookup(id, idtype)) == 0)
370 fup = addid(id, idtype, (char *)0);
371 dqblk_to_quotaval(&dqbuf, fup->fu_qv);
372 fup->fu_qv[QUOTA_LIMIT_BLOCK].qv_grace = bgrace;
373 fup->fu_qv[QUOTA_LIMIT_FILE].qv_grace = igrace;
374 }
375 defaultqv[idtype][QUOTA_LIMIT_BLOCK].qv_grace = bgrace;
376 defaultqv[idtype][QUOTA_LIMIT_FILE].qv_grace = igrace;
377 defaultqv[idtype][QUOTA_LIMIT_BLOCK].qv_softlimit =
378 defaultqv[idtype][QUOTA_LIMIT_BLOCK].qv_hardlimit =
379 defaultqv[idtype][QUOTA_LIMIT_FILE].qv_softlimit =
380 defaultqv[idtype][QUOTA_LIMIT_FILE].qv_hardlimit = QUOTA_NOLIMIT;
381 fclose(qf);
382 valid[idtype] = 1;
383 if (xflag == 0)
384 printquotas(idtype, vfs, 1);
385 return 0;
386 }
387
388 static void
389 printquotas(int idtype, const struct statvfs *vfs, int version)
390 {
391 static int multiple = 0;
392 uint32_t id;
393 int i;
394 struct fileusage *fup;
395 struct quotaval *q;
396 const char *timemsg[QUOTA_NLIMITS];
397 char overchar[QUOTA_NLIMITS];
398 time_t now;
399 char b0[2][20], b1[20], b2[20], b3[20];
400
401 switch (idtype) {
402 case QUOTA_IDTYPE_GROUP:
403 {
404 struct group *gr;
405 setgrent();
406 while ((gr = getgrent()) != 0)
407 (void)addid(gr->gr_gid, idtype, gr->gr_name);
408 endgrent();
409 break;
410 }
411 case QUOTA_IDTYPE_USER:
412 {
413 struct passwd *pw;
414 setpwent();
415 while ((pw = getpwent()) != 0)
416 (void)addid(pw->pw_uid, idtype, pw->pw_name);
417 endpwent();
418 break;
419 }
420 default:
421 errx(1, "Unknown quota ID type %d", idtype);
422 }
423
424 time(&now);
425
426 if (multiple++)
427 printf("\n");
428 if (vflag)
429 printf("*** Report for %s quotas on %s (%s, version %d)\n",
430 ufs_quota_class_names[idtype], vfs->f_mntonname,
431 vfs->f_mntfromname, version);
432 printf(" Block limits "
433 "File limits\n");
434 printf(idtype == QUOTA_IDTYPE_USER ? "User " : "Group");
435 printf(" used soft hard grace used"
436 "soft hard grace\n");
437 for (id = 0; id <= highid[idtype]; id++) {
438 fup = qremove(id, idtype);
439 q = fup->fu_qv;
440 if (fup == 0)
441 continue;
442 for (i = 0; i < QUOTA_NLIMITS; i++) {
443 switch (QL_STATUS(quota_check_limit(q[i].qv_usage, 1,
444 q[i].qv_softlimit, q[i].qv_hardlimit,
445 q[i].qv_expiretime, now))) {
446 case QL_S_DENY_HARD:
447 case QL_S_DENY_GRACE:
448 case QL_S_ALLOW_SOFT:
449 timemsg[i] = timeprt(b0[i], 8, now,
450 q[i].qv_expiretime);
451 overchar[i] = '+';
452 break;
453 default:
454 timemsg[i] = (vflag && version == 2) ?
455 timeprt(b0[i], 8, 0, q[i].qv_grace) : "";
456 overchar[i] = '-';
457 break;
458 }
459 }
460
461 if (q[QUOTA_LIMIT_BLOCK].qv_usage == 0 &&
462 q[QUOTA_LIMIT_FILE].qv_usage == 0 && vflag == 0 &&
463 overchar[QUOTA_LIMIT_BLOCK] == '-' &&
464 overchar[QUOTA_LIMIT_FILE] == '-')
465 continue;
466 if (strlen(fup->fu_name) > 9)
467 printf("%s ", fup->fu_name);
468 else
469 printf("%-10s", fup->fu_name);
470 printf("%c%c%9s%9s%9s%7s",
471 overchar[QUOTA_LIMIT_BLOCK], overchar[QUOTA_LIMIT_FILE],
472 intprt(b1, 10, q[QUOTA_LIMIT_BLOCK].qv_usage,
473 HN_B, hflag),
474 intprt(b2, 10, q[QUOTA_LIMIT_BLOCK].qv_softlimit,
475 HN_B, hflag),
476 intprt(b3, 10, q[QUOTA_LIMIT_BLOCK].qv_hardlimit,
477 HN_B, hflag),
478 timemsg[QUOTA_LIMIT_BLOCK]);
479 printf(" %8s%8s%8s%7s\n",
480 intprt(b1, 9, q[QUOTA_LIMIT_FILE].qv_usage, 0, hflag),
481 intprt(b2, 9, q[QUOTA_LIMIT_FILE].qv_softlimit,
482 0, hflag),
483 intprt(b3, 9, q[QUOTA_LIMIT_FILE].qv_hardlimit,
484 0, hflag),
485 timemsg[QUOTA_LIMIT_FILE]);
486 free(fup);
487 }
488 }
489
490 static void
491 exportquotas(void)
492 {
493 uint32_t id;
494 struct fileusage *fup;
495 prop_dictionary_t dict, data;
496 prop_array_t cmds, datas;
497 int idtype;
498 uint64_t *valuesp[QUOTA_NLIMITS];
499
500 dict = quota_prop_create();
501 cmds = prop_array_create();
502
503 if (dict == NULL || cmds == NULL) {
504 errx(1, "can't allocate proplist");
505 }
506
507
508 for (idtype = 0; idtype < QUOTA_NCLASS; idtype++) {
509 if (valid[idtype] == 0)
510 continue;
511 datas = prop_array_create();
512 if (datas == NULL)
513 errx(1, "can't allocate proplist");
514 valuesp[QUOTA_LIMIT_BLOCK] =
515 &defaultqv[idtype][QUOTA_LIMIT_BLOCK].qv_hardlimit;
516 valuesp[QUOTA_LIMIT_FILE] =
517 &defaultqv[idtype][QUOTA_LIMIT_FILE].qv_hardlimit;
518 data = quota64toprop(0, 1, valuesp,
519 ufs_quota_entry_names, UFS_QUOTA_NENTRIES,
520 ufs_quota_limit_names, QUOTA_NLIMITS);
521 if (data == NULL)
522 err(1, "quota64toprop(default)");
523 if (!prop_array_add_and_rel(datas, data))
524 err(1, "prop_array_add(data)");
525
526 for (id = 0; id <= highid[idtype]; id++) {
527 fup = qremove(id, idtype);
528 if (fup == 0)
529 continue;
530 valuesp[QUOTA_LIMIT_BLOCK] =
531 &fup->fu_qv[QUOTA_LIMIT_BLOCK].qv_hardlimit;
532 valuesp[QUOTA_LIMIT_FILE] =
533 &fup->fu_qv[QUOTA_LIMIT_FILE].qv_hardlimit;
534 data = quota64toprop(id, 0, valuesp,
535 ufs_quota_entry_names, UFS_QUOTA_NENTRIES,
536 ufs_quota_limit_names, QUOTA_NLIMITS);
537 if (data == NULL)
538 err(1, "quota64toprop(id)");
539 if (!prop_array_add_and_rel(datas, data))
540 err(1, "prop_array_add(data)");
541 free(fup);
542 }
543
544 if (!quota_prop_add_command(cmds, "set",
545 ufs_quota_class_names[idtype], datas))
546 err(1, "prop_add_command");
547 }
548
549 if (!prop_dictionary_set(dict, "commands", cmds))
550 err(1, "prop_dictionary_set(command)");
551
552 printf("%s\n", prop_dictionary_externalize(dict));
553 return;
554 }
555
556 /*
557 * Routines to manage the file usage table.
558 *
559 * Lookup an id of a specific id type.
560 */
561 struct fileusage *
562 lookup(uint32_t id, int idtype)
563 {
564 struct fileusage *fup;
565
566 for (fup = fuhead[idtype][id & (FUHASH-1)]; fup != 0; fup = fup->fu_next)
567 if (fup->fu_id == id)
568 return fup;
569 return NULL;
570 }
571 /*
572 * Lookup and remove an id of a specific id type.
573 */
574 static struct fileusage *
575 qremove(uint32_t id, int idtype)
576 {
577 struct fileusage *fup, **fupp;
578
579 for (fupp = &fuhead[idtype][id & (FUHASH-1)]; *fupp != 0;) {
580 fup = *fupp;
581 if (fup->fu_id == id) {
582 *fupp = fup->fu_next;
583 return fup;
584 }
585 fupp = &fup->fu_next;
586 }
587 return NULL;
588 }
589
590 /*
591 * Add a new file usage id if it does not already exist.
592 */
593 static struct fileusage *
594 addid(uint32_t id, int idtype, const char *name)
595 {
596 struct fileusage *fup, **fhp;
597 struct group *gr = NULL;
598 struct passwd *pw = NULL;
599 size_t len;
600
601 if ((fup = lookup(id, idtype)) != NULL) {
602 return fup;
603 }
604 if (name == NULL) {
605 switch(idtype) {
606 case QUOTA_IDTYPE_GROUP:
607 gr = getgrgid(id);
608
609 if (gr != NULL)
610 name = gr->gr_name;
611 break;
612 case QUOTA_IDTYPE_USER:
613 pw = getpwuid(id);
614 if (pw)
615 name = pw->pw_name;
616 break;
617 default:
618 errx(1, "Unknown quota ID type %d\n", idtype);
619 }
620 }
621
622 if (name)
623 len = strlen(name);
624 else
625 len = 10;
626 if ((fup = calloc(1, sizeof(*fup) + len)) == NULL)
627 err(1, "out of memory for fileusage structures");
628 fhp = &fuhead[idtype][id & (FUHASH - 1)];
629 fup->fu_next = *fhp;
630 *fhp = fup;
631 fup->fu_id = id;
632 if (id > highid[idtype])
633 highid[idtype] = id;
634 if (name) {
635 memmove(fup->fu_name, name, len + 1);
636 } else {
637 snprintf(fup->fu_name, len + 1, "%u", id);
638 }
639 fup->fu_qv[QUOTA_LIMIT_BLOCK] = defaultqv[idtype][QUOTA_LIMIT_BLOCK];
640 fup->fu_qv[QUOTA_LIMIT_FILE] = defaultqv[idtype][QUOTA_LIMIT_FILE];
641 return fup;
642 }
643