1 /* 2 * Copyright (c) 1980, 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Robert Elz at The University of Melbourne. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 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. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #ifndef lint 38 static const char copyright[] = 39 "@(#) Copyright (c) 1980, 1990, 1993\n\ 40 The Regents of the University of California. All rights reserved.\n"; 41 #endif 42 43 #ifndef lint 44 static const char sccsid[] = "from: @(#)quota.c 8.1 (Berkeley) 6/6/93"; 45 #endif /* not lint */ 46 47 /* 48 * Disk quota reporting program. 49 */ 50 #include <sys/cdefs.h> 51 __FBSDID("$FreeBSD$"); 52 53 #include <sys/param.h> 54 #include <sys/types.h> 55 #include <sys/file.h> 56 #include <sys/stat.h> 57 #include <sys/mount.h> 58 #include <sys/socket.h> 59 60 #include <rpc/rpc.h> 61 #include <rpc/pmap_prot.h> 62 #include <rpcsvc/rquota.h> 63 64 #include <ufs/ufs/quota.h> 65 66 #include <ctype.h> 67 #include <err.h> 68 #include <fstab.h> 69 #include <grp.h> 70 #include <libutil.h> 71 #include <netdb.h> 72 #include <pwd.h> 73 #include <stdio.h> 74 #include <stdlib.h> 75 #include <string.h> 76 #include <unistd.h> 77 78 const char *qfname = QUOTAFILENAME; 79 const char *qfextension[] = INITQFNAMES; 80 81 struct quotause { 82 struct quotause *next; 83 long flags; 84 struct dqblk dqblk; 85 char fsname[MAXPATHLEN + 1]; 86 }; 87 88 static const char *timeprt(time_t seconds); 89 static struct quotause *getprivs(long id, int quotatype); 90 static void usage(void); 91 static void showuid(u_long uid); 92 static void showgid(u_long gid); 93 static void showusrname(char *name); 94 static void showgrpname(char *name); 95 static void showquotas(int type, u_long id, const char *name); 96 static void heading(int type, u_long id, const char *name, const char *tag); 97 static int ufshasquota(struct fstab *fs, int type, char **qfnamep); 98 static int getufsquota(struct fstab *fs, struct quotause *qup, long id, 99 int quotatype); 100 static int getnfsquota(struct statfs *fst, struct quotause *qup, long id, 101 int quotatype); 102 static int callaurpc(char *host, int prognum, int versnum, int procnum, 103 xdrproc_t inproc, char *in, xdrproc_t outproc, char *out); 104 static int alldigits(char *s); 105 106 int hflag; 107 int lflag; 108 int qflag; 109 int vflag; 110 111 int 112 main(int argc, char *argv[]) 113 { 114 int ngroups; 115 gid_t mygid, gidset[NGROUPS]; 116 int i, ch, gflag = 0, uflag = 0; 117 118 while ((ch = getopt(argc, argv, "ghlquv")) != -1) { 119 switch(ch) { 120 case 'g': 121 gflag++; 122 break; 123 case 'h': 124 hflag++; 125 break; 126 case 'l': 127 lflag++; 128 break; 129 case 'q': 130 qflag++; 131 break; 132 case 'u': 133 uflag++; 134 break; 135 case 'v': 136 vflag++; 137 break; 138 default: 139 usage(); 140 } 141 } 142 argc -= optind; 143 argv += optind; 144 if (!uflag && !gflag) 145 uflag++; 146 if (argc == 0) { 147 if (uflag) 148 showuid(getuid()); 149 if (gflag) { 150 mygid = getgid(); 151 ngroups = getgroups(NGROUPS, gidset); 152 if (ngroups < 0) 153 err(1, "getgroups"); 154 showgid(mygid); 155 for (i = 0; i < ngroups; i++) 156 if (gidset[i] != mygid) 157 showgid(gidset[i]); 158 } 159 return(0); 160 } 161 if (uflag && gflag) 162 usage(); 163 if (uflag) { 164 for (; argc > 0; argc--, argv++) { 165 if (alldigits(*argv)) 166 showuid(atoi(*argv)); 167 else 168 showusrname(*argv); 169 } 170 return(0); 171 } 172 if (gflag) { 173 for (; argc > 0; argc--, argv++) { 174 if (alldigits(*argv)) 175 showgid(atoi(*argv)); 176 else 177 showgrpname(*argv); 178 } 179 } 180 return(0); 181 } 182 183 static void 184 usage(void) 185 { 186 187 fprintf(stderr, "%s\n%s\n%s\n", 188 "usage: quota [-ghlu] [-v | -q]", 189 " quota [-hlu] [-v | -q] user ...", 190 " quota -g [-hl] [-v | -q] group ..."); 191 exit(1); 192 } 193 194 /* 195 * Print out quotas for a specified user identifier. 196 */ 197 static void 198 showuid(u_long uid) 199 { 200 struct passwd *pwd = getpwuid(uid); 201 const char *name; 202 203 if (pwd == NULL) 204 name = "(no account)"; 205 else 206 name = pwd->pw_name; 207 showquotas(USRQUOTA, uid, name); 208 } 209 210 /* 211 * Print out quotas for a specifed user name. 212 */ 213 static void 214 showusrname(char *name) 215 { 216 struct passwd *pwd = getpwnam(name); 217 218 if (pwd == NULL) { 219 warnx("%s: unknown user", name); 220 return; 221 } 222 showquotas(USRQUOTA, pwd->pw_uid, name); 223 } 224 225 /* 226 * Print out quotas for a specified group identifier. 227 */ 228 static void 229 showgid(u_long gid) 230 { 231 struct group *grp = getgrgid(gid); 232 const char *name; 233 234 if (grp == NULL) 235 name = "(no entry)"; 236 else 237 name = grp->gr_name; 238 showquotas(GRPQUOTA, gid, name); 239 } 240 241 /* 242 * Print out quotas for a specifed group name. 243 */ 244 static void 245 showgrpname(char *name) 246 { 247 struct group *grp = getgrnam(name); 248 249 if (grp == NULL) { 250 warnx("%s: unknown group", name); 251 return; 252 } 253 showquotas(GRPQUOTA, grp->gr_gid, name); 254 } 255 256 static void 257 prthumanval(int len, int64_t bytes) 258 { 259 char buf[len + 1]; 260 261 humanize_number(buf, sizeof(buf), bytes, "", HN_AUTOSCALE, 262 HN_B | HN_NOSPACE | HN_DECIMAL); 263 264 (void)printf(" %*s", len, buf); 265 } 266 267 static void 268 showquotas(int type, u_long id, const char *name) 269 { 270 struct quotause *qup; 271 struct quotause *quplist; 272 const char *msgi, *msgb; 273 const char *nam; 274 int lines = 0; 275 static time_t now; 276 277 if (now == 0) 278 time(&now); 279 quplist = getprivs(id, type); 280 for (qup = quplist; qup; qup = qup->next) { 281 if (!vflag && 282 qup->dqblk.dqb_isoftlimit == 0 && 283 qup->dqblk.dqb_ihardlimit == 0 && 284 qup->dqblk.dqb_bsoftlimit == 0 && 285 qup->dqblk.dqb_bhardlimit == 0) 286 continue; 287 msgi = (char *)0; 288 if (qup->dqblk.dqb_ihardlimit && 289 qup->dqblk.dqb_curinodes >= qup->dqblk.dqb_ihardlimit) 290 msgi = "File limit reached on"; 291 else if (qup->dqblk.dqb_isoftlimit && 292 qup->dqblk.dqb_curinodes >= qup->dqblk.dqb_isoftlimit) { 293 if (qup->dqblk.dqb_itime > now) 294 msgi = "In file grace period on"; 295 else 296 msgi = "Over file quota on"; 297 } 298 msgb = (char *)0; 299 if (qup->dqblk.dqb_bhardlimit && 300 qup->dqblk.dqb_curblocks >= qup->dqblk.dqb_bhardlimit) 301 msgb = "Block limit reached on"; 302 else if (qup->dqblk.dqb_bsoftlimit && 303 qup->dqblk.dqb_curblocks >= qup->dqblk.dqb_bsoftlimit) { 304 if (qup->dqblk.dqb_btime > now) 305 msgb = "In block grace period on"; 306 else 307 msgb = "Over block quota on"; 308 } 309 if (qflag) { 310 if ((msgi != (char *)0 || msgb != (char *)0) && 311 lines++ == 0) 312 heading(type, id, name, ""); 313 if (msgi != (char *)0) 314 printf("\t%s %s\n", msgi, qup->fsname); 315 if (msgb != (char *)0) 316 printf("\t%s %s\n", msgb, qup->fsname); 317 continue; 318 } 319 if (vflag || 320 qup->dqblk.dqb_curblocks || 321 qup->dqblk.dqb_curinodes) { 322 if (lines++ == 0) 323 heading(type, id, name, ""); 324 nam = qup->fsname; 325 if (strlen(qup->fsname) > 15) { 326 printf("%s\n", qup->fsname); 327 nam = ""; 328 } 329 printf("%15s", nam); 330 if (hflag) { 331 prthumanval(7, dbtob(qup->dqblk.dqb_curblocks)); 332 printf("%c", (msgb == (char *)0) ? ' ' : '*'); 333 prthumanval(6, dbtob(qup->dqblk.dqb_bsoftlimit)); 334 prthumanval(7, dbtob(qup->dqblk.dqb_bhardlimit)); 335 } else { 336 printf("%8lu%c%7lu%8lu" 337 , (u_long) (dbtob(qup->dqblk.dqb_curblocks) 338 / 1024) 339 , (msgb == (char *)0) ? ' ' : '*' 340 , (u_long) (dbtob(qup->dqblk.dqb_bsoftlimit) 341 / 1024) 342 , (u_long) (dbtob(qup->dqblk.dqb_bhardlimit) 343 / 1024)); 344 } 345 printf("%8s%8lu%c%7lu%8lu%8s\n" 346 , (msgb == (char *)0) ? "" 347 :timeprt(qup->dqblk.dqb_btime) 348 , (u_long)qup->dqblk.dqb_curinodes 349 , (msgi == (char *)0) ? ' ' : '*' 350 , (u_long)qup->dqblk.dqb_isoftlimit 351 , (u_long)qup->dqblk.dqb_ihardlimit 352 , (msgi == (char *)0) ? "" 353 : timeprt(qup->dqblk.dqb_itime) 354 ); 355 continue; 356 } 357 } 358 if (!qflag && lines == 0) 359 heading(type, id, name, "none"); 360 } 361 362 static void 363 heading(int type, u_long id, const char *name, const char *tag) 364 { 365 366 printf("Disk quotas for %s %s (%cid %lu): %s\n", qfextension[type], 367 name, *qfextension[type], id, tag); 368 if (!qflag && tag[0] == '\0') { 369 printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n" 370 , "Filesystem" 371 , "usage" 372 , "quota" 373 , "limit" 374 , "grace" 375 , "files" 376 , "quota" 377 , "limit" 378 , "grace" 379 ); 380 } 381 } 382 383 /* 384 * Calculate the grace period and return a printable string for it. 385 */ 386 static const char * 387 timeprt(time_t seconds) 388 { 389 time_t hours, minutes; 390 static char buf[20]; 391 static time_t now; 392 393 if (now == 0) 394 time(&now); 395 if (now > seconds) 396 return ("none"); 397 seconds -= now; 398 minutes = (seconds + 30) / 60; 399 hours = (minutes + 30) / 60; 400 if (hours >= 36) { 401 sprintf(buf, "%lddays", ((long)hours + 12) / 24); 402 return (buf); 403 } 404 if (minutes >= 60) { 405 sprintf(buf, "%2ld:%ld", (long)minutes / 60, 406 (long)minutes % 60); 407 return (buf); 408 } 409 sprintf(buf, "%2ld", (long)minutes); 410 return (buf); 411 } 412 413 /* 414 * Collect the requested quota information. 415 */ 416 static struct quotause * 417 getprivs(long id, int quotatype) 418 { 419 struct quotause *qup, *quptail = NULL; 420 struct fstab *fs; 421 struct quotause *quphead; 422 struct statfs *fst; 423 int nfst, i; 424 425 qup = quphead = (struct quotause *)0; 426 427 nfst = getmntinfo(&fst, MNT_NOWAIT); 428 if (nfst == 0) 429 errx(2, "no filesystems mounted!"); 430 setfsent(); 431 for (i=0; i<nfst; i++) { 432 if (qup == NULL) { 433 if ((qup = (struct quotause *)malloc(sizeof *qup)) 434 == NULL) 435 errx(2, "out of memory"); 436 } 437 if (strcmp(fst[i].f_fstypename, "nfs") == 0) { 438 if (lflag) 439 continue; 440 if (getnfsquota(&fst[i], qup, id, quotatype) 441 == 0) 442 continue; 443 } else if (strcmp(fst[i].f_fstypename, "ufs") == 0) { 444 /* 445 * XXX 446 * UFS filesystems must be in /etc/fstab, and must 447 * indicate that they have quotas on (?!) This is quite 448 * unlike SunOS where quotas can be enabled/disabled 449 * on a filesystem independent of /etc/fstab, and it 450 * will still print quotas for them. 451 */ 452 if ((fs = getfsspec(fst[i].f_mntfromname)) == NULL) 453 continue; 454 if (getufsquota(fs, qup, id, quotatype) == 0) 455 continue; 456 } else 457 continue; 458 strcpy(qup->fsname, fst[i].f_mntonname); 459 if (quphead == NULL) 460 quphead = qup; 461 else 462 quptail->next = qup; 463 quptail = qup; 464 quptail->next = 0; 465 qup = NULL; 466 } 467 if (qup) 468 free(qup); 469 endfsent(); 470 return (quphead); 471 } 472 473 /* 474 * Check to see if a particular quota is to be enabled. 475 */ 476 static int 477 ufshasquota(struct fstab *fs, int type, char **qfnamep) 478 { 479 static char initname, usrname[100], grpname[100]; 480 static char buf[BUFSIZ]; 481 char *opt, *cp; 482 483 if (!initname) { 484 sprintf(usrname, "%s%s", qfextension[USRQUOTA], qfname); 485 sprintf(grpname, "%s%s", qfextension[GRPQUOTA], qfname); 486 initname = 1; 487 } 488 strcpy(buf, fs->fs_mntops); 489 for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) { 490 if ((cp = index(opt, '='))) 491 *cp++ = '\0'; 492 if (type == USRQUOTA && strcmp(opt, usrname) == 0) 493 break; 494 if (type == GRPQUOTA && strcmp(opt, grpname) == 0) 495 break; 496 } 497 if (!opt) 498 return (0); 499 if (cp) { 500 *qfnamep = cp; 501 return (1); 502 } 503 (void) sprintf(buf, "%s/%s.%s", fs->fs_file, qfname, qfextension[type]); 504 *qfnamep = buf; 505 return (1); 506 } 507 508 static int 509 getufsquota(struct fstab *fs, struct quotause *qup, long id, int quotatype) 510 { 511 char *qfpathname; 512 int fd, qcmd; 513 514 qcmd = QCMD(Q_GETQUOTA, quotatype); 515 if (!ufshasquota(fs, quotatype, &qfpathname)) 516 return (0); 517 518 if (quotactl(fs->fs_file, qcmd, id, (char *)&qup->dqblk) != 0) { 519 if ((fd = open(qfpathname, O_RDONLY)) < 0) { 520 warn("%s", qfpathname); 521 return (0); 522 } 523 (void) lseek(fd, (off_t)(id * sizeof(struct dqblk)), L_SET); 524 switch (read(fd, &qup->dqblk, sizeof(struct dqblk))) { 525 case 0: /* EOF */ 526 /* 527 * Convert implicit 0 quota (EOF) 528 * into an explicit one (zero'ed dqblk) 529 */ 530 bzero((caddr_t)&qup->dqblk, sizeof(struct dqblk)); 531 break; 532 case sizeof(struct dqblk): /* OK */ 533 break; 534 default: /* ERROR */ 535 warn("read error: %s", qfpathname); 536 close(fd); 537 return (0); 538 } 539 close(fd); 540 } 541 return (1); 542 } 543 544 static int 545 getnfsquota(struct statfs *fst, struct quotause *qup, long id, int quotatype) 546 { 547 struct getquota_args gq_args; 548 struct getquota_rslt gq_rslt; 549 struct dqblk *dqp = &qup->dqblk; 550 struct timeval tv; 551 char *cp; 552 553 if (fst->f_flags & MNT_LOCAL) 554 return (0); 555 556 /* 557 * rpc.rquotad does not support group quotas 558 */ 559 if (quotatype != USRQUOTA) 560 return (0); 561 562 /* 563 * must be some form of "hostname:/path" 564 */ 565 cp = strchr(fst->f_mntfromname, ':'); 566 if (cp == NULL) { 567 warnx("cannot find hostname for %s", fst->f_mntfromname); 568 return (0); 569 } 570 571 *cp = '\0'; 572 if (*(cp+1) != '/') { 573 *cp = ':'; 574 return (0); 575 } 576 577 /* Avoid attempting the RPC for special amd(8) filesystems. */ 578 if (strncmp(fst->f_mntfromname, "pid", 3) == 0 && 579 strchr(fst->f_mntfromname, '@') != NULL) { 580 *cp = ':'; 581 return (0); 582 } 583 584 gq_args.gqa_pathp = cp + 1; 585 gq_args.gqa_uid = id; 586 if (callaurpc(fst->f_mntfromname, RQUOTAPROG, RQUOTAVERS, 587 RQUOTAPROC_GETQUOTA, (xdrproc_t)xdr_getquota_args, (char *)&gq_args, 588 (xdrproc_t)xdr_getquota_rslt, (char *)&gq_rslt) != 0) { 589 *cp = ':'; 590 return (0); 591 } 592 593 switch (gq_rslt.status) { 594 case Q_NOQUOTA: 595 break; 596 case Q_EPERM: 597 warnx("quota permission error, host: %s", 598 fst->f_mntfromname); 599 break; 600 case Q_OK: 601 gettimeofday(&tv, NULL); 602 /* blocks*/ 603 dqp->dqb_bhardlimit = 604 gq_rslt.getquota_rslt_u.gqr_rquota.rq_bhardlimit * 605 (gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsize / DEV_BSIZE); 606 dqp->dqb_bsoftlimit = 607 gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsoftlimit * 608 (gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsize / DEV_BSIZE); 609 dqp->dqb_curblocks = 610 gq_rslt.getquota_rslt_u.gqr_rquota.rq_curblocks * 611 (gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsize / DEV_BSIZE); 612 /* inodes */ 613 dqp->dqb_ihardlimit = 614 gq_rslt.getquota_rslt_u.gqr_rquota.rq_fhardlimit; 615 dqp->dqb_isoftlimit = 616 gq_rslt.getquota_rslt_u.gqr_rquota.rq_fsoftlimit; 617 dqp->dqb_curinodes = 618 gq_rslt.getquota_rslt_u.gqr_rquota.rq_curfiles; 619 /* grace times */ 620 dqp->dqb_btime = 621 tv.tv_sec + gq_rslt.getquota_rslt_u.gqr_rquota.rq_btimeleft; 622 dqp->dqb_itime = 623 tv.tv_sec + gq_rslt.getquota_rslt_u.gqr_rquota.rq_ftimeleft; 624 *cp = ':'; 625 return (1); 626 default: 627 warnx("bad rpc result, host: %s", fst->f_mntfromname); 628 break; 629 } 630 *cp = ':'; 631 return (0); 632 } 633 634 static int 635 callaurpc(char *host, int prognum, int versnum, int procnum, 636 xdrproc_t inproc, char *in, xdrproc_t outproc, char *out) 637 { 638 struct sockaddr_in server_addr; 639 enum clnt_stat clnt_stat; 640 struct hostent *hp; 641 struct timeval timeout, tottimeout; 642 643 CLIENT *client = NULL; 644 int sock = RPC_ANYSOCK; 645 646 if ((hp = gethostbyname(host)) == NULL) 647 return ((int) RPC_UNKNOWNHOST); 648 timeout.tv_usec = 0; 649 timeout.tv_sec = 6; 650 bcopy(hp->h_addr, &server_addr.sin_addr, 651 MIN(hp->h_length,(int)sizeof(server_addr.sin_addr))); 652 server_addr.sin_family = AF_INET; 653 server_addr.sin_port = 0; 654 655 if ((client = clntudp_create(&server_addr, prognum, 656 versnum, timeout, &sock)) == NULL) 657 return ((int) rpc_createerr.cf_stat); 658 659 client->cl_auth = authunix_create_default(); 660 tottimeout.tv_sec = 25; 661 tottimeout.tv_usec = 0; 662 clnt_stat = clnt_call(client, procnum, inproc, in, 663 outproc, out, tottimeout); 664 665 return ((int) clnt_stat); 666 } 667 668 static int 669 alldigits(char *s) 670 { 671 int c; 672 673 c = *s++; 674 do { 675 if (!isdigit(c)) 676 return (0); 677 } while ((c = *s++)); 678 return (1); 679 } 680