A number of structures related to UFS and QUOTAS have changed name.
[dragonfly.git] / usr.sbin / quot / quot.c
1 /*
2  * Copyright (C) 1991, 1994 Wolfgang Solfrank.
3  * Copyright (C) 1991, 1994 TooLs GmbH.
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. All advertising materials mentioning features or use of this software
15  *    must display the following acknowledgement:
16  *      This product includes software developed by TooLs GmbH.
17  * 4. The name of TooLs GmbH may not be used to endorse or promote products
18  *    derived from this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23  * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30  *
31  * $FreeBSD: src/usr.sbin/quot/quot.c,v 1.11.2.4 2002/03/15 18:12:41 mikeh Exp $
32  * $DragonFly: src/usr.sbin/quot/quot.c,v 1.6 2006/04/03 01:58:49 dillon Exp $
33  */
34
35 #include <sys/param.h>
36 #include <sys/mount.h>
37 #include <sys/time.h>
38
39 #include <vfs/ufs/dinode.h>
40 #include <vfs/ufs/inode.h>
41 #include <vfs/ufs/fs.h>
42 #include <vfs/ufs/quota.h>
43
44 #include <err.h>
45 #include <fcntl.h>
46 #include <fstab.h>
47 #include <errno.h>
48 #include <paths.h>
49 #include <pwd.h>
50 #include <stdio.h>
51 #include <stdlib.h>
52 #include <string.h>
53 #include <unistd.h>
54
55 /* some flags of what to do: */
56 static char estimate;
57 static char count;
58 static char unused;
59 static void (*func)(int, struct fs *, char *);
60 static long blocksize;
61 static char *header;
62 static int headerlen;
63
64 static struct ufs1_dinode *get_inode(int, struct fs *, ino_t);
65 static int      virtualblocks(struct fs *, struct ufs1_dinode *);
66 static int      isfree(struct ufs1_dinode *);
67 static void     inituser(void);
68 static void     usrrehash(void);
69 static struct user *user(uid_t);
70 static int      cmpusers(const void *, const void *);
71 static void     uses(uid_t, daddr_t, time_t);
72 static void     initfsizes(void);
73 static void     dofsizes(int, struct fs *, char *);
74 static void     douser(int, struct fs *, char *);
75 static void     donames(int, struct fs *, char *);
76 static void     usage(void);
77 static void     quot(char *, char *);
78
79 /*
80  * Original BSD quot doesn't round to number of frags/blocks,
81  * doesn't account for indirection blocks and gets it totally
82  * wrong if the size is a multiple of the blocksize.
83  * The new code always counts the number of 512 byte blocks
84  * instead of the number of kilobytes and converts them to
85  * kByte when done (on request).
86  *
87  * Due to the size of modern disks, we must cast intermediate
88  * values to 64 bits to prevent potential overflows.
89  */
90 #ifdef  COMPAT
91 #define SIZE(n) (n)
92 #else
93 #define SIZE(n) ((int)(((quad_t)(n) * 512 + blocksize - 1)/blocksize))
94 #endif
95
96 #define INOCNT(fs)      ((fs)->fs_ipg)
97 #define INOSZ(fs)       (sizeof(struct ufs1_dinode) * INOCNT(fs))
98
99 static struct ufs1_dinode *
100 get_inode(int fd, struct fs *super, ino_t ino)
101 {
102         static struct ufs1_dinode *ip;
103         static ino_t last;
104         
105         if (fd < 0) {           /* flush cache */
106                 if (ip) {
107                         free(ip);
108                         ip = 0;
109                 }
110                 return 0;
111         }
112         
113         if (!ip || ino < last || ino >= last + INOCNT(super)) {
114                 if (!ip
115                     && !(ip = (struct ufs1_dinode *)malloc(INOSZ(super))))
116                         errx(1, "allocate inodes");
117                 last = (ino / INOCNT(super)) * INOCNT(super);
118                 if (lseek(fd, (off_t)ino_to_fsba(super, last) << super->fs_fshift, 0) < (off_t)0
119                     || read(fd,ip,INOSZ(super)) != (ssize_t)INOSZ(super))
120                         err(1, "read inodes");
121         }
122         
123         return ip + ino % INOCNT(super);
124 }
125
126 #ifdef  COMPAT
127 #define actualblocks(super,ip)  ((ip)->di_blocks/2)
128 #else
129 #define actualblocks(super,ip)  ((ip)->di_blocks)
130 #endif
131
132 static int
133 virtualblocks(struct fs *super, struct ufs1_dinode *ip)
134 {
135         off_t nblk, sz;
136         
137         sz = ip->di_size;
138 #ifdef  COMPAT
139         if (lblkno(super,sz) >= NDADDR) {
140                 nblk = blkroundup(super,sz);
141                 if (sz == nblk)
142                         nblk += super->fs_bsize;
143         }
144         
145         return sz / 1024;
146         
147 #else   /* COMPAT */
148         
149         if (lblkno(super,sz) >= NDADDR) {
150                 nblk = blkroundup(super,sz);
151                 sz = lblkno(super,nblk);
152                 sz = (sz - NDADDR + NINDIR(super) - 1) / NINDIR(super);
153                 while (sz > 0) {
154                         nblk += sz * super->fs_bsize;
155                         /* sz - 1 rounded up */
156                         sz = (sz - 1 + NINDIR(super) - 1) / NINDIR(super);
157                 }
158         } else
159                 nblk = fragroundup(super,sz);
160         
161         return nblk / 512;
162 #endif  /* COMPAT */
163 }
164
165 static int
166 isfree(struct ufs1_dinode *ip)
167 {
168 #ifdef  COMPAT
169         return (ip->di_mode&IFMT) == 0;
170 #else   /* COMPAT */
171         
172         switch (ip->di_mode&IFMT) {
173         case IFIFO:
174         case IFLNK:             /* should check FASTSYMLINK? */
175         case IFDIR:
176         case IFREG:
177                 return 0;
178         default:
179                 return 1;
180         }
181 #endif
182 }
183
184 static struct user {
185         uid_t uid;
186         char *name;
187         daddr_t space;
188         long count;
189         daddr_t spc30;
190         daddr_t spc60;
191         daddr_t spc90;
192 } *users;
193 static int nusers;
194
195 static void
196 inituser(void)
197 {
198         int i;
199         struct user *usr;
200         
201         if (!nusers) {
202                 nusers = 8;
203                 if (!(users =
204                     (struct user *)calloc(nusers,sizeof(struct user))))
205                         errx(1, "allocate users");
206         } else {
207                 for (usr = users, i = nusers; --i >= 0; usr++) {
208                         usr->space = usr->spc30 = usr->spc60 = usr->spc90 = 0;
209                         usr->count = 0;
210                 }
211         }
212 }
213
214 static void
215 usrrehash(void)
216 {
217         int i;
218         struct user *usr, *usrn;
219         struct user *svusr;
220
221         svusr = users;
222         nusers <<= 1;
223         if (!(users = (struct user *)calloc(nusers,sizeof(struct user))))
224                 errx(1, "allocate users");
225         for (usr = svusr, i = nusers >> 1; --i >= 0; usr++) {
226                 for (usrn = users + (usr->uid&(nusers - 1)); usrn->name;
227                     usrn--) {
228                         if (usrn <= users)
229                                 usrn = users + nusers;
230                 }
231                 *usrn = *usr;
232         }
233 }
234
235 static struct user *
236 user(uid_t uid)
237 {
238         struct user *usr;
239         int i;
240         struct passwd *pwd;
241
242         while (1) {
243                 for (usr = users + (uid&(nusers - 1)), i = nusers; --i >= 0;
244                     usr--) {
245                         if (!usr->name) {
246                                 usr->uid = uid;
247                                 
248                                 if (!(pwd = getpwuid(uid))) {
249                                         if ((usr->name = (char *)malloc(7)))
250                                                 sprintf(usr->name,"#%d",uid);
251                                 } else {
252                                         if ((usr->name = (char *)
253                                             malloc(strlen(pwd->pw_name) + 1)))
254                                                 strcpy(usr->name,pwd->pw_name);
255                                 }
256                                 if (!usr->name)
257                                         errx(1, "allocate users");
258                                 
259                                 return usr;
260                                 
261                         } else if (usr->uid == uid)
262                                 return usr;
263
264                         if (usr <= users)
265                                 usr = users + nusers;
266                 }
267                 usrrehash();
268         }
269 }
270
271 static int
272 cmpusers(const void *v1, const void *v2)
273 {
274         const struct user *u1, *u2;
275         u1 = (const struct user *)v1;
276         u2 = (const struct user *)v2;
277
278         return u2->space - u1->space;
279 }
280
281 #define sortusers(users)        (qsort((users),nusers,sizeof(struct user), \
282                                     cmpusers))
283
284 static void
285 uses(uid_t uid, daddr_t blks, time_t act)
286 {
287         static time_t today;
288         struct user *usr;
289
290         if (!today)
291                 time(&today);
292
293         usr = user(uid);
294         usr->count++;
295         usr->space += blks;
296
297         if (today - act > 90L * 24L * 60L * 60L)
298                 usr->spc90 += blks;
299         if (today - act > 60L * 24L * 60L * 60L)
300                 usr->spc60 += blks;
301         if (today - act > 30L * 24L * 60L * 60L)
302                 usr->spc30 += blks;
303 }
304
305 #ifdef  COMPAT
306 #define FSZCNT  500
307 #else
308 #define FSZCNT  512
309 #endif
310 struct fsizes {
311         struct fsizes *fsz_next;
312         daddr_t fsz_first, fsz_last;
313         ino_t fsz_count[FSZCNT];
314         daddr_t fsz_sz[FSZCNT];
315 } *fsizes;
316
317 static void
318 initfsizes(void)
319 {
320         struct fsizes *fp;
321         int i;
322         
323         for (fp = fsizes; fp; fp = fp->fsz_next) {
324                 for (i = FSZCNT; --i >= 0;) {
325                         fp->fsz_count[i] = 0;
326                         fp->fsz_sz[i] = 0;
327                 }
328         }
329 }
330
331 static void
332 dofsizes(int fd, struct fs *super, char *name)
333 {
334         ino_t inode, maxino;
335         struct ufs1_dinode *ip;
336         daddr_t sz, ksz;
337         struct fsizes *fp, **fsp;
338         int i;
339
340         maxino = super->fs_ncg * super->fs_ipg - 1;
341 #ifdef  COMPAT
342         if (!(fsizes = (struct fsizes *)malloc(sizeof(struct fsizes))))
343                 errx(1, "allocate fsize structure");
344 #endif  /* COMPAT */
345         for (inode = 0; inode < maxino; inode++) {
346                 errno = 0;
347                 if ((ip = get_inode(fd,super,inode))
348 #ifdef  COMPAT
349                     && ((ip->di_mode&IFMT) == IFREG
350                         || (ip->di_mode&IFMT) == IFDIR)
351 #else   /* COMPAT */
352                     && !isfree(ip)
353 #endif  /* COMPAT */
354                     ) {
355                         sz = estimate ? virtualblocks(super,ip) :
356                             actualblocks(super,ip);
357 #ifdef  COMPAT
358                         if (sz >= FSZCNT) {
359                                 fsizes->fsz_count[FSZCNT-1]++;
360                                 fsizes->fsz_sz[FSZCNT-1] += sz;
361                         } else {
362                                 fsizes->fsz_count[sz]++;
363                                 fsizes->fsz_sz[sz] += sz;
364                         }
365 #else   /* COMPAT */
366                         ksz = SIZE(sz);
367                         for (fsp = &fsizes; (fp = *fsp); fsp = &fp->fsz_next) {
368                                 if (ksz < fp->fsz_last)
369                                         break;
370                         }
371                         if (!fp || ksz < fp->fsz_first) {
372                                 if (!(fp = (struct fsizes *)
373                                     malloc(sizeof(struct fsizes))))
374                                         errx(1, "allocate fsize structure");
375                                 fp->fsz_next = *fsp;
376                                 *fsp = fp;
377                                 fp->fsz_first = (ksz / FSZCNT) * FSZCNT;
378                                 fp->fsz_last = fp->fsz_first + FSZCNT;
379                                 for (i = FSZCNT; --i >= 0;) {
380                                         fp->fsz_count[i] = 0;
381                                         fp->fsz_sz[i] = 0;
382                                 }
383                         }
384                         fp->fsz_count[ksz % FSZCNT]++;
385                         fp->fsz_sz[ksz % FSZCNT] += sz;
386 #endif  /* COMPAT */
387                 } else if (errno) {
388                         err(1, "%s", name);
389                 }
390         }
391         sz = 0;
392         for (fp = fsizes; fp; fp = fp->fsz_next) {
393                 for (i = 0; i < FSZCNT; i++) {
394                         if (fp->fsz_count[i])
395                                 printf("%d\t%d\t%d\n",fp->fsz_first + i,
396                                     fp->fsz_count[i],
397                                     SIZE(sz += fp->fsz_sz[i]));
398                 }
399         }
400 }
401
402 static void
403 douser(int fd, struct fs *super, char *name)
404 {
405         ino_t inode, maxino;
406         struct user *usr, *usrs;
407         struct ufs1_dinode *ip;
408         int n;
409
410         maxino = super->fs_ncg * super->fs_ipg - 1;
411         for (inode = 0; inode < maxino; inode++) {
412                 errno = 0;
413                 if ((ip = get_inode(fd,super,inode))
414                     && !isfree(ip))
415                         uses(ip->di_uid,
416                             estimate ? virtualblocks(super,ip) :
417                                 actualblocks(super,ip),
418                             ip->di_atime);
419                 else if (errno) {
420                         err(1, "%s", name);
421                 }
422         }
423         if (!(usrs = (struct user *)malloc(nusers * sizeof(struct user))))
424                 errx(1, "allocate users");
425         bcopy(users,usrs,nusers * sizeof(struct user));
426         sortusers(usrs);
427         for (usr = usrs, n = nusers; --n >= 0 && usr->count; usr++) {
428                 printf("%5d",SIZE(usr->space));
429                 if (count)
430                         printf("\t%5ld",usr->count);
431                 printf("\t%-8s",usr->name);
432                 if (unused)
433                         printf("\t%5d\t%5d\t%5d",
434                                SIZE(usr->spc30),
435                                SIZE(usr->spc60),
436                                SIZE(usr->spc90));
437                 printf("\n");
438         }
439         free(usrs);
440 }
441
442 static void
443 donames(int fd, struct fs *super, char *name)
444 {
445         int c;
446         ino_t inode, inode1;
447         ino_t maxino;
448         struct ufs1_dinode *ip;
449         
450         maxino = super->fs_ncg * super->fs_ipg - 1;
451         /* first skip the name of the filesystem */
452         while ((c = getchar()) != EOF && (c < '0' || c > '9'))
453                 while ((c = getchar()) != EOF && c != '\n');
454         ungetc(c,stdin);
455         inode1 = -1;
456         while (scanf("%u",&inode) == 1) {
457                 if (inode > maxino) {
458                         warnx("illegal inode %d",inode);
459                         return;
460                 }
461                 errno = 0;
462                 if ((ip = get_inode(fd,super,inode))
463                     && !isfree(ip)) {
464                         printf("%s\t",user(ip->di_uid)->name);
465                         /* now skip whitespace */
466                         while ((c = getchar()) == ' ' || c == '\t');
467                         /* and print out the remainder of the input line */
468                         while (c != EOF && c != '\n') {
469                                 putchar(c);
470                                 c = getchar();
471                         }
472                         putchar('\n');
473                         inode1 = inode;
474                 } else {
475                         if (errno) {
476                                 err(1, "%s", name);
477                         }
478                         /* skip this line */
479                         while ((c = getchar()) != EOF && c != '\n');
480                 }
481                 if (c == EOF)
482                         break;
483         }
484 }
485
486 static void
487 usage(void)
488 {
489 #ifdef  COMPAT
490         fprintf(stderr,"usage: quot [-nfcvha] [filesystem ...]\n");
491 #else   /* COMPAT */
492         fprintf(stderr,"usage: quot [-acfhknv] [filesystem ...]\n");
493 #endif  /* COMPAT */
494         exit(1);
495 }
496
497 static char superblock[SBSIZE];
498
499 void
500 quot(char *name, char *mp)
501 {
502         int fd;
503
504         get_inode(-1, NULL, 0);         /* flush cache */
505         inituser();
506         initfsizes();
507         if ((fd = open(name,0)) < 0
508             || lseek(fd,SBOFF,0) != SBOFF
509             || read(fd,superblock,SBSIZE) != SBSIZE) {
510                 warn("%s", name);
511                 close(fd);
512                 return;
513         }
514         if (((struct fs *)superblock)->fs_magic != FS_MAGIC) {
515                 warnx("%s: not a BSD filesystem",name);
516                 close(fd);
517                 return;
518         }
519         printf("%s:",name);
520         if (mp)
521                 printf(" (%s)",mp);
522         putchar('\n');
523         (*func)(fd,(struct fs *)superblock,name);
524         close(fd);
525 }
526
527 int
528 main(int argc, char **argv)
529 {
530         char all = 0;
531         struct statfs *mp;
532         struct fstab *fs;
533         char dev[MNAMELEN + 1];
534         char *nm;
535         int cnt;
536
537         func = douser;
538 #ifndef COMPAT
539         header = getbsize(&headerlen,&blocksize);
540 #endif
541         while (--argc > 0 && **++argv == '-') {
542                 while (*++*argv) {
543                         switch (**argv) {
544                         case 'n':
545                                 func = donames;
546                                 break;
547                         case 'c':
548                                 func = dofsizes;
549                                 break;
550                         case 'a':
551                                 all = 1;
552                                 break;
553                         case 'f':
554                                 count = 1;
555                                 break;
556                         case 'h':
557                                 estimate = 1;
558                                 break;
559 #ifndef COMPAT
560                         case 'k':
561                                 blocksize = 1024;
562                                 break;
563 #endif  /* COMPAT */
564                         case 'v':
565                                 unused = 1;
566                                 break;
567                         default:
568                                 usage();
569                         }
570                 }
571         }
572         if (all) {
573                 cnt = getmntinfo(&mp,MNT_NOWAIT);
574                 for (; --cnt >= 0; mp++) {
575                         if (!strncmp(mp->f_fstypename, "ufs", MFSNAMELEN)) {
576                                 if ((nm = strrchr(mp->f_mntfromname,'/'))) {
577                                         sprintf(dev,"%s%s",_PATH_DEV,nm + 1);
578                                         nm = dev;
579                                 } else
580                                         nm = mp->f_mntfromname;
581                                 quot(nm,mp->f_mntonname);
582                         }
583                 }
584         }
585         while (--argc >= 0) {
586                 if ((fs = getfsfile(*argv)) != NULL)
587                         quot(fs->fs_spec, 0);
588                 else
589                         quot(*argv,0);
590                 argv++;
591         }
592         return 0;
593 }