2 * Copyright (c) 1980, 1990, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Robert Elz at The University of Melbourne.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * @(#) Copyright (c) 1980, 1990, 1993 The Regents of the University of California. All rights reserved.
33 * @(#)quotacheck.c 8.3 (Berkeley) 1/29/94
34 * $FreeBSD: src/sbin/quotacheck/quotacheck.c,v 1.11 1999/08/28 00:14:01 peter Exp $
38 * Fix up / report on disk quotas & usage
40 #include <sys/param.h>
43 #include <vfs/ufs/dinode.h>
44 #include <vfs/ufs/quota.h>
45 #include <vfs/ufs/fs.h>
58 const char *qfname = QUOTAFILENAME;
59 const char *qfextension[] = INITQFNAMES;
60 const char *quotagroup = QUOTAGROUP;
66 #define sblock un.sblk
72 char grpqfname[MAXPATHLEN + 1];
73 char usrqfname[MAXPATHLEN + 1];
79 struct fileusage *fu_next;
86 #define FUHASH 1024 /* must be power of two */
87 struct fileusage *fuhead[MAXQUOTAS][FUHASH];
89 int aflag; /* all file systems */
90 int gflag; /* check group quotas */
91 int uflag; /* check user quotas */
92 int vflag; /* verbose */
93 int fi; /* open disk file descriptor */
94 u_long highid[MAXQUOTAS]; /* highest addid()'ed identifier per type */
97 addid(u_long, int, char *);
98 char *blockcheck(char *);
99 void bread(daddr_t, char *, long);
100 extern int checkfstab(int, int, void * (*)(struct fstab *),
101 int (*)(char *, char *, struct quotaname *));
102 int chkquota(char *, char *, struct quotaname *);
103 void freeinodebuf(void);
106 int getquotagid(void);
107 int hasquota(struct fstab *, int, char **);
110 void *needchk(struct fstab *);
111 int oneof(char *, char*[], int);
112 void resetinodebuf(void);
113 int update(char *, char *, int);
117 main(int argc, char **argv)
122 struct quotaname *auxdata;
123 int i, argnum, maxrun, errs;
128 while ((ch = getopt(argc, argv, "aguvl:")) != -1) {
143 maxrun = atoi(optarg);
151 if ((argc == 0 && !aflag) || (argc > 0 && aflag))
153 if (!gflag && !uflag) {
159 while ((gr = getgrent()) != NULL)
160 addid((u_long)gr->gr_gid, GRPQUOTA, gr->gr_name);
165 while ((pw = getpwent()) != NULL)
166 addid((u_long)pw->pw_uid, USRQUOTA, pw->pw_name);
170 exit(checkfstab(1, maxrun, needchk, chkquota));
172 errx(1, "%s: can't open", FSTAB);
173 while ((fs = getfsent()) != NULL) {
174 if (((argnum = oneof(fs->fs_file, argv, argc)) >= 0 ||
175 (argnum = oneof(fs->fs_spec, argv, argc)) >= 0) &&
176 (auxdata = needchk(fs)) &&
177 (name = blockcheck(fs->fs_spec))) {
179 errs += chkquota(name, fs->fs_file, auxdata);
183 for (i = 0; i < argc; i++)
184 if ((done & (1 << i)) == 0)
185 fprintf(stderr, "%s not found in %s\n",
193 fprintf(stderr, "%s\n%s\n",
194 "usage: quotacheck -a [-guv]",
195 " quotacheck [-guv] filesys ...");
200 needchk(struct fstab *fs)
202 struct quotaname *qnp;
205 if (strcmp(fs->fs_vfstype, "ufs") ||
206 strcmp(fs->fs_type, FSTAB_RW))
208 if ((qnp = malloc(sizeof(*qnp))) == NULL)
209 errx(1, "malloc failed");
211 if (gflag && hasquota(fs, GRPQUOTA, &qfnp)) {
212 strcpy(qnp->grpqfname, qfnp);
213 qnp->flags |= HASGRP;
215 if (uflag && hasquota(fs, USRQUOTA, &qfnp)) {
216 strcpy(qnp->usrqfname, qfnp);
217 qnp->flags |= HASUSR;
226 * Scan the specified filesystem to check quota(s) present on it.
229 chkquota(char *fsname, char *mntpt, struct quotaname *qnp)
231 struct fileusage *fup;
232 struct ufs1_dinode *dp;
233 int cg, i, mode, errs = 0;
236 if ((fi = open(fsname, O_RDONLY, 0)) < 0) {
241 printf("*** Checking ");
242 if (qnp->flags & HASUSR)
243 printf("%s%s", qfextension[USRQUOTA],
244 (qnp->flags & HASGRP) ? " and " : "");
245 if (qnp->flags & HASGRP)
246 printf("%s", qfextension[GRPQUOTA]);
247 printf(" quotas for %s (%s)\n", fsname, mntpt);
251 bread(SBOFF, (char *)&sblock, (long)SBSIZE);
252 dev_bsize = sblock.fs_fsize / fsbtodb(&sblock, 1);
253 maxino = sblock.fs_ncg * sblock.fs_ipg;
255 for (ino = 0, cg = 0; cg < sblock.fs_ncg; cg++) {
256 for (i = 0; i < sblock.fs_ipg; i++, ino++) {
259 if ((dp = getnextinode(ino)) == NULL)
261 if ((mode = dp->di_mode & IFMT) == 0)
263 if (qnp->flags & HASGRP) {
264 fup = addid((u_long)dp->di_gid, GRPQUOTA,
267 if (mode == IFREG || mode == IFDIR ||
269 fup->fu_curblocks += dp->di_blocks;
271 if (qnp->flags & HASUSR) {
272 fup = addid((u_long)dp->di_uid, USRQUOTA,
275 if (mode == IFREG || mode == IFDIR ||
277 fup->fu_curblocks += dp->di_blocks;
282 if (qnp->flags & HASUSR)
283 errs += update(mntpt, qnp->usrqfname, USRQUOTA);
284 if (qnp->flags & HASGRP)
285 errs += update(mntpt, qnp->grpqfname, GRPQUOTA);
291 * Update a specified quota file.
294 update(char *fsname, char *quotafile, int type)
296 struct fileusage *fup;
300 struct ufs_dqblk dqbuf;
301 static int warned = 0;
302 static struct ufs_dqblk zerodqbuf;
303 static struct fileusage zerofileusage;
305 if ((qfo = fopen(quotafile, "r+")) == NULL) {
307 qfo = fopen(quotafile, "w+");
309 warnx("creating quota file %s", quotafile);
310 #define MODE (S_IRUSR|S_IWUSR|S_IRGRP)
311 fchown(fileno(qfo), getuid(), getquotagid());
312 fchmod(fileno(qfo), MODE);
314 warn("%s", quotafile);
318 if ((qfi = fopen(quotafile, "r")) == NULL) {
319 warn("%s", quotafile);
323 if (quotactl(fsname, QCMD(Q_SYNC, type), (u_long)0, (caddr_t)0) < 0 &&
324 errno == EOPNOTSUPP && !warned && vflag) {
326 printf("*** Warning: %s\n",
327 "Quotas are not compiled into this kernel");
329 for (lastid = highid[type], id = 0, offset = 0; id <= lastid;
330 id++, offset += sizeof(struct ufs_dqblk)) {
331 if (fread((char *)&dqbuf, sizeof(struct ufs_dqblk), 1, qfi) == 0)
333 if ((fup = lookup(id, type)) == NULL)
334 fup = &zerofileusage;
335 if (dqbuf.dqb_curinodes == fup->fu_curinodes &&
336 dqbuf.dqb_curblocks == fup->fu_curblocks) {
337 fup->fu_curinodes = 0;
338 fup->fu_curblocks = 0;
343 printf("%s: ", fsname);
344 printf("%-8s fixed:", fup->fu_name);
345 if (dqbuf.dqb_curinodes != fup->fu_curinodes)
346 printf("\tinodes %lu -> %lu",
347 (u_long)dqbuf.dqb_curinodes,
348 (u_long)fup->fu_curinodes);
349 if (dqbuf.dqb_curblocks != fup->fu_curblocks)
350 printf("\tblocks %lu -> %lu",
351 (u_long)dqbuf.dqb_curblocks,
352 (u_long)fup->fu_curblocks);
356 * Reset time limit if have a soft limit and were
357 * previously under it, but are now over it.
359 if (dqbuf.dqb_bsoftlimit &&
360 dqbuf.dqb_curblocks < dqbuf.dqb_bsoftlimit &&
361 fup->fu_curblocks >= dqbuf.dqb_bsoftlimit)
363 if (dqbuf.dqb_isoftlimit &&
364 dqbuf.dqb_curblocks < dqbuf.dqb_isoftlimit &&
365 fup->fu_curblocks >= dqbuf.dqb_isoftlimit)
367 dqbuf.dqb_curinodes = fup->fu_curinodes;
368 dqbuf.dqb_curblocks = fup->fu_curblocks;
369 if (fseek(qfo, (long)offset, SEEK_SET) < 0) {
370 warn("%s: seek failed", quotafile);
373 fwrite((char *)&dqbuf, sizeof(struct ufs_dqblk), 1, qfo);
374 quotactl(fsname, QCMD(Q_SETUSE, type), id,
376 fup->fu_curinodes = 0;
377 fup->fu_curblocks = 0;
381 ftruncate(fileno(qfo),
382 (off_t)((highid[type] + 1) * sizeof(struct ufs_dqblk)));
388 * Check to see if target appears in list of size cnt.
391 oneof(char *target, char **list, int cnt)
395 for (i = 0; i < cnt; i++)
396 if (strcmp(target, list[i]) == 0)
402 * Determine the group identifier for quota files.
409 if ((gr = getgrnam(quotagroup)) != NULL)
415 * Check to see if a particular quota is to be enabled.
418 hasquota(struct fstab *fs, int type, char **qfnamep)
422 static char initname, usrname[100], grpname[100];
423 static char buf[BUFSIZ];
426 snprintf(usrname, sizeof(usrname),
427 "%s%s", qfextension[USRQUOTA], qfname);
428 snprintf(grpname, sizeof(grpname),
429 "%s%s", qfextension[GRPQUOTA], qfname);
432 strcpy(buf, fs->fs_mntops);
433 for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) {
434 if ((cp = strchr(opt, '=')) != NULL)
436 if (type == USRQUOTA && strcmp(opt, usrname) == 0)
438 if (type == GRPQUOTA && strcmp(opt, grpname) == 0)
446 snprintf(buf, sizeof(buf),
447 "%s/%s.%s", fs->fs_file, qfname, qfextension[type]);
454 * Routines to manage the file usage table.
456 * Lookup an id of a specific type.
459 lookup(u_long id, int type)
461 struct fileusage *fup;
463 for (fup = fuhead[type][id & (FUHASH-1)]; fup != NULL; fup = fup->fu_next)
464 if (fup->fu_id == id)
470 * Add a new file usage id if it does not already exist.
473 addid(u_long id, int type, char *name)
475 struct fileusage *fup, **fhp;
478 if ((fup = lookup(id, type)) != NULL)
484 if ((fup = calloc(1, sizeof(*fup) + len)) == NULL)
485 errx(1, "calloc failed");
486 fhp = &fuhead[type][id & (FUHASH - 1)];
490 if (id > highid[type])
493 bcopy(name, fup->fu_name, len + 1);
495 sprintf(fup->fu_name, "%lu", id);
497 printf("unknown %cid: %lu\n",
498 type == USRQUOTA ? 'u' : 'g', id);
504 * Special purpose version of ginode used to optimize pass
505 * over all the inodes in numerical order.
507 ino_t nextino, lastinum;
508 long readcnt, readpercg, fullcnt, inobufsize, partialcnt, partialsize;
509 struct ufs1_dinode *inodebuf;
510 #define INOBUFSIZE 56*1024 /* size of buffer to read inodes */
513 getnextinode(ino_t inumber)
517 static struct ufs1_dinode *dp;
519 if (inumber != nextino++ || inumber > maxino) {
520 errx(1, "bad inode number %ju to nextinode",
523 if (inumber >= lastinum) {
525 dblk = fsbtodb(&sblock, ino_to_fsba(&sblock, lastinum));
526 if (readcnt % readpercg == 0) {
528 lastinum += partialcnt;
533 bread(dblk, (char *)inodebuf, size);
540 * Prepare to scan a set of inodes.
549 inobufsize = blkroundup(&sblock, INOBUFSIZE);
550 fullcnt = inobufsize / sizeof(struct ufs1_dinode);
551 readpercg = sblock.fs_ipg / fullcnt;
552 partialcnt = sblock.fs_ipg % fullcnt;
553 partialsize = partialcnt * sizeof(struct ufs1_dinode);
554 if (partialcnt != 0) {
557 partialcnt = fullcnt;
558 partialsize = inobufsize;
560 if (inodebuf == NULL &&
561 (inodebuf = malloc((u_int)inobufsize)) == NULL)
562 errx(1, "malloc failed");
563 while (nextino < ROOTINO)
564 getnextinode(nextino);
568 * Free up data structures used to scan inodes.
574 if (inodebuf != NULL)
580 * Read specified disk blocks.
583 bread(daddr_t bno, char *buf, long cnt)
586 if (lseek(fi, (off_t)bno * dev_bsize, SEEK_SET) < 0 ||
587 read(fi, buf, cnt) != cnt)
588 errx(1, "block %ld", (long)bno);