1 /* $OpenBSD: pstat.c,v 1.77 2009/10/27 23:59:53 deraadt Exp $ */ 2 /* $NetBSD: pstat.c,v 1.27 1996/10/23 22:50:06 cgd Exp $ */ 3 4 /*- 5 * Copyright (c) 1980, 1991, 1993 6 * The Regents of the University of California. All rights reserved. 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. 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. 19 * 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 30 * SUCH DAMAGE. 31 */ 32 33 #include <sys/param.h> 34 #include <sys/time.h> 35 #include <sys/buf.h> 36 #include <sys/vnode.h> 37 #include <sys/ucred.h> 38 #define _KERNEL 39 #include <sys/file.h> 40 #include <ufs/ufs/quota.h> 41 #include <ufs/ufs/inode.h> 42 #include <sys/mount.h> 43 #undef _KERNEL 44 #include <sys/stat.h> 45 #include <nfs/nfsproto.h> 46 #include <nfs/rpcv2.h> 47 #include <nfs/nfsnode.h> 48 #include <sys/ioctl.h> 49 #include <sys/tty.h> 50 #include <sys/conf.h> 51 #include <sys/device.h> 52 #include <sys/swap.h> 53 54 #include <sys/sysctl.h> 55 56 #include <err.h> 57 #include <kvm.h> 58 #include <limits.h> 59 #include <nlist.h> 60 #include <paths.h> 61 #include <stdio.h> 62 #include <stdlib.h> 63 #include <string.h> 64 #include <unistd.h> 65 66 struct nlist vnodenl[] = { 67 #define FNL_NFILE 0 /* sysctl */ 68 {"_nfiles"}, 69 #define FNL_MAXFILE 1 /* sysctl */ 70 {"_maxfiles"}, 71 #define TTY_NTTY 2 /* sysctl */ 72 {"_tty_count"}, 73 #define V_NUMV 3 /* sysctl */ 74 { "_numvnodes" }, 75 #define TTY_TTYLIST 4 /* sysctl */ 76 {"_ttylist"}, 77 #define V_MOUNTLIST 5 /* no sysctl */ 78 { "_mountlist" }, 79 { NULL } 80 }; 81 82 struct nlist *globalnl; 83 84 int usenumflag; 85 int totalflag; 86 int kflag; 87 char *nlistf = NULL; 88 char *memf = NULL; 89 kvm_t *kd = NULL; 90 91 #define SVAR(var) __STRING(var) /* to force expansion */ 92 #define KGET(idx, var) \ 93 KGET1(idx, &var, sizeof(var), SVAR(var)) 94 #define KGET1(idx, p, s, msg) \ 95 KGET2(globalnl[idx].n_value, p, s, msg) 96 #define KGET2(addr, p, s, msg) \ 97 if (kvm_read(kd, (u_long)(addr), p, s) != s) \ 98 warnx("cannot read %s: %s", msg, kvm_geterr(kd)) 99 #define KGETRET(addr, p, s, msg) \ 100 if (kvm_read(kd, (u_long)(addr), p, s) != s) { \ 101 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 102 return (0); \ 103 } 104 105 void filemode(void); 106 int getfiles(char **, size_t *); 107 struct mount * 108 getmnt(struct mount *); 109 struct e_vnode * 110 kinfo_vnodes(int *); 111 struct e_vnode * 112 loadvnodes(int *); 113 void mount_print(struct mount *); 114 void nfs_header(void); 115 int nfs_print(struct vnode *); 116 void swapmode(void); 117 void ttymode(void); 118 void ttyprt(struct itty *); 119 void ufs_header(void); 120 int ufs_print(struct vnode *); 121 void ext2fs_header(void); 122 int ext2fs_print(struct vnode *); 123 void usage(void); 124 void vnode_header(void); 125 void vnode_print(struct vnode *, struct vnode *); 126 void vnodemode(void); 127 128 int 129 main(int argc, char *argv[]) 130 { 131 int fileflag = 0, swapflag = 0, ttyflag = 0, vnodeflag = 0, ch; 132 char buf[_POSIX2_LINE_MAX]; 133 const char *dformat = NULL; 134 extern char *optarg; 135 extern int optind; 136 gid_t gid; 137 int i; 138 139 while ((ch = getopt(argc, argv, "d:TM:N:fiknstv")) != -1) 140 switch (ch) { 141 case 'd': 142 dformat = optarg; 143 break; 144 case 'f': 145 fileflag = 1; 146 break; 147 case 'M': 148 memf = optarg; 149 break; 150 case 'N': 151 nlistf = optarg; 152 break; 153 case 'n': 154 usenumflag = 1; 155 break; 156 case 's': 157 swapflag = 1; 158 break; 159 case 'T': 160 totalflag = 1; 161 break; 162 case 't': 163 ttyflag = 1; 164 break; 165 case 'k': 166 kflag = 1; 167 break; 168 case 'v': 169 case 'i': /* Backward compatibility. */ 170 vnodeflag = 1; 171 break; 172 default: 173 usage(); 174 } 175 argc -= optind; 176 argv += optind; 177 178 if (dformat && getuid()) 179 errx(1, "Only root can use -d"); 180 181 if ((dformat == 0 && argc > 0) || (dformat && argc == 0)) 182 usage(); 183 184 /* 185 * Discard setgid privileges if not the running kernel so that bad 186 * guys can't print interesting stuff from kernel memory. 187 */ 188 gid = getgid(); 189 if (nlistf != NULL || memf != NULL) 190 if (setresgid(gid, gid, gid) == -1) 191 err(1, "setresgid"); 192 193 if (vnodeflag || dformat) 194 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0) 195 errx(1, "kvm_openfiles: %s", buf); 196 197 if (nlistf == NULL && memf == NULL) 198 if (setresgid(gid, gid, gid) == -1) 199 err(1, "setresgid"); 200 if (dformat) { 201 struct nlist *nl; 202 int longformat = 0, stringformat = 0, error = 0, n; 203 int mask = ~0; 204 char format[10], buf[1024]; 205 206 n = strlen(dformat); 207 if (n == 0) 208 errx(1, "illegal format"); 209 210 /* 211 * Support p, c, s, and {l, ll, h, hh, j, t, z, }[diouxX] 212 */ 213 if (strcmp(dformat, "p") == 0) 214 longformat = sizeof(long) == 8; 215 else if (strcmp(dformat, "c") == 0) 216 mask = 0xff; 217 else if (strcmp(dformat, "s") == 0) 218 stringformat = 1; 219 else if (strchr("diouxX", dformat[n - 1])) { 220 char *ptbl[]= {"l", "ll", "h", "hh", "j", "t", "z", ""}; 221 int i; 222 223 char *mod; 224 for (i = 0; i < sizeof(ptbl)/sizeof(ptbl[0]); i++) { 225 mod = ptbl[i]; 226 if (strlen(mod) == n - 1 && 227 strncmp(mod, dformat, strlen(mod)) == 0) 228 break; 229 } 230 if (i == sizeof(ptbl)/sizeof(ptbl[0]) 231 && dformat[1] != '\0') 232 errx(1, "illegal format"); 233 if (strcmp(mod, "l") == 0) 234 longformat = sizeof(long) == sizeof(long long); 235 else if (strcmp(mod, "h") == 0) 236 mask = 0xffff; 237 else if (strcmp(mod, "hh") == 0) 238 mask = 0xff; 239 else 240 longformat = 1; 241 242 } else 243 errx(1, "illegal format"); 244 245 if (*dformat == 's') { 246 stringformat = 1; 247 snprintf(format, sizeof(format), "%%.%zus", 248 sizeof buf); 249 } else 250 snprintf(format, sizeof(format), "%%%s", dformat); 251 252 nl = calloc(argc + 1, sizeof *nl); 253 if (!nl) 254 err(1, "calloc nl: "); 255 for (i = 0; i < argc; i++) { 256 if (asprintf(&nl[i].n_name, "_%s", 257 argv[i]) == -1) 258 warn("asprintf"); 259 } 260 kvm_nlist(kd, nl); 261 globalnl = nl; 262 for (i = 0; i < argc; i++) { 263 long long v; 264 265 printf("%s ", argv[i]); 266 if (!nl[i].n_value && argv[i][0] == '0') { 267 nl[i].n_value = strtoul(argv[i], NULL, 16); 268 nl[i].n_type = N_DATA; 269 } 270 if (!nl[i].n_value) { 271 printf("not found\n"); 272 error++; 273 continue; 274 } 275 276 printf("at %p: ", (void *)nl[i].n_value); 277 if (nl[i].n_type == N_DATA) { 278 if (stringformat) { 279 KGET1(i, &buf, sizeof(buf), argv[i]); 280 buf[sizeof(buf) - 1] = '\0'; 281 } else 282 KGET1(i, &v, sizeof(v), argv[i]); 283 if (stringformat) 284 printf(format, &buf); 285 else if (longformat) 286 printf(format, v); 287 else 288 printf(format, ((int)v) & mask); 289 } 290 printf("\n"); 291 } 292 for (i = 0; i < argc; i++) 293 free(nl[i].n_name); 294 free(nl); 295 exit(error); 296 } 297 298 if (vnodeflag) 299 if (kvm_nlist(kd, vnodenl) == -1) 300 errx(1, "kvm_nlist: %s", kvm_geterr(kd)); 301 302 if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag || dformat)) 303 usage(); 304 if (fileflag || totalflag) 305 filemode(); 306 if (vnodeflag || totalflag) 307 vnodemode(); 308 if (ttyflag) 309 ttymode(); 310 if (swapflag || totalflag) 311 swapmode(); 312 exit(0); 313 } 314 315 void 316 vnodemode(void) 317 { 318 struct e_vnode *e_vnodebase, *endvnode, *evp; 319 struct vnode *vp; 320 struct mount *maddr, *mp = NULL; 321 int numvnodes; 322 323 globalnl = vnodenl; 324 325 e_vnodebase = loadvnodes(&numvnodes); 326 if (totalflag) { 327 (void)printf("%7d vnodes\n", numvnodes); 328 return; 329 } 330 endvnode = e_vnodebase + numvnodes; 331 (void)printf("%d active vnodes\n", numvnodes); 332 333 maddr = NULL; 334 for (evp = e_vnodebase; evp < endvnode; evp++) { 335 vp = &evp->vnode; 336 if (vp->v_mount != maddr) { 337 /* 338 * New filesystem 339 */ 340 if ((mp = getmnt(vp->v_mount)) == NULL) 341 continue; 342 maddr = vp->v_mount; 343 mount_print(mp); 344 vnode_header(); 345 if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_FFS, MFSNAMELEN) || 346 !strncmp(mp->mnt_stat.f_fstypename, MOUNT_MFS, MFSNAMELEN)) { 347 ufs_header(); 348 } else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_NFS, 349 MFSNAMELEN)) { 350 nfs_header(); 351 } else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_EXT2FS, 352 MFSNAMELEN)) { 353 ext2fs_header(); 354 } 355 (void)printf("\n"); 356 } 357 vnode_print(evp->vptr, vp); 358 359 /* Syncer vnodes have no associated fs-specific data */ 360 if (vp->v_data == NULL) { 361 printf(" %6c %5c %7c\n", '-', '-', '-'); 362 continue; 363 } 364 365 if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_FFS, MFSNAMELEN) || 366 !strncmp(mp->mnt_stat.f_fstypename, MOUNT_MFS, MFSNAMELEN)) { 367 ufs_print(vp); 368 } else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_NFS, MFSNAMELEN)) { 369 nfs_print(vp); 370 } else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_EXT2FS, 371 MFSNAMELEN)) { 372 ext2fs_print(vp); 373 } 374 (void)printf("\n"); 375 } 376 free(e_vnodebase); 377 } 378 379 void 380 vnode_header(void) 381 { 382 (void)printf("%*s TYP VFLAG USE HOLD", 2 * (int)sizeof(long), "ADDR"); 383 } 384 385 void 386 vnode_print(struct vnode *avnode, struct vnode *vp) 387 { 388 char *type, flags[16]; 389 char *fp = flags; 390 int flag; 391 392 /* 393 * set type 394 */ 395 switch (vp->v_type) { 396 case VNON: 397 type = "non"; break; 398 case VREG: 399 type = "reg"; break; 400 case VDIR: 401 type = "dir"; break; 402 case VBLK: 403 type = "blk"; break; 404 case VCHR: 405 type = "chr"; break; 406 case VLNK: 407 type = "lnk"; break; 408 case VSOCK: 409 type = "soc"; break; 410 case VFIFO: 411 type = "fif"; break; 412 case VBAD: 413 type = "bad"; break; 414 default: 415 type = "unk"; break; 416 } 417 /* 418 * gather flags 419 */ 420 flag = vp->v_flag; 421 if (flag & VROOT) 422 *fp++ = 'R'; 423 if (flag & VTEXT) 424 *fp++ = 'T'; 425 if (flag & VSYSTEM) 426 *fp++ = 'S'; 427 if (flag & VISTTY) 428 *fp++ = 'I'; 429 if (flag & VXLOCK) 430 *fp++ = 'L'; 431 if (flag & VXWANT) 432 *fp++ = 'W'; 433 if (vp->v_bioflag & VBIOWAIT) 434 *fp++ = 'B'; 435 if (flag & VALIASED) 436 *fp++ = 'A'; 437 if (vp->v_bioflag & VBIOONFREELIST) 438 *fp++ = 'F'; 439 if (flag & VLOCKSWORK) 440 *fp++ = 'l'; 441 if (vp->v_bioflag & VBIOONSYNCLIST) 442 *fp++ = 's'; 443 if (flag == 0) 444 *fp++ = '-'; 445 *fp = '\0'; 446 (void)printf("%0*lx %s %5s %4d %4u", 2 * (int)sizeof(long), 447 (long)avnode, type, flags, vp->v_usecount, vp->v_holdcnt); 448 } 449 450 void 451 ufs_header(void) 452 { 453 (void)printf(" FILEID IFLAG RDEV|SZ"); 454 } 455 456 int 457 ufs_print(struct vnode *vp) 458 { 459 int flag; 460 struct inode inode, *ip = &inode; 461 struct ufs1_dinode di1; 462 char flagbuf[16], *flags = flagbuf; 463 char *name; 464 mode_t type; 465 466 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 467 KGETRET(inode.i_din1, &di1, sizeof(struct ufs1_dinode), 468 "vnode's dinode"); 469 470 inode.i_din1 = &di1; 471 flag = ip->i_flag; 472 #if 0 473 if (flag & IN_LOCKED) 474 *flags++ = 'L'; 475 if (flag & IN_WANTED) 476 *flags++ = 'W'; 477 if (flag & IN_LWAIT) 478 *flags++ = 'Z'; 479 #endif 480 if (flag & IN_ACCESS) 481 *flags++ = 'A'; 482 if (flag & IN_CHANGE) 483 *flags++ = 'C'; 484 if (flag & IN_UPDATE) 485 *flags++ = 'U'; 486 if (flag & IN_MODIFIED) 487 *flags++ = 'M'; 488 if (flag & IN_RENAME) 489 *flags++ = 'R'; 490 if (flag & IN_SHLOCK) 491 *flags++ = 'S'; 492 if (flag & IN_EXLOCK) 493 *flags++ = 'E'; 494 if (flag == 0) 495 *flags++ = '-'; 496 *flags = '\0'; 497 498 (void)printf(" %6d %5s", ip->i_number, flagbuf); 499 type = ip->i_ffs1_mode & S_IFMT; 500 if (S_ISCHR(ip->i_ffs1_mode) || S_ISBLK(ip->i_ffs1_mode)) 501 if (usenumflag || 502 ((name = devname(ip->i_ffs1_rdev, type)) == NULL)) 503 (void)printf(" %2d,%-2d", 504 major(ip->i_ffs1_rdev), minor(ip->i_ffs1_rdev)); 505 else 506 (void)printf(" %7s", name); 507 else 508 (void)printf(" %7qd", ip->i_ffs1_size); 509 return (0); 510 } 511 512 void 513 ext2fs_header(void) 514 { 515 (void)printf(" FILEID IFLAG SZ"); 516 } 517 518 int 519 ext2fs_print(struct vnode *vp) 520 { 521 int flag; 522 struct inode inode, *ip = &inode; 523 struct ext2fs_dinode di; 524 char flagbuf[16], *flags = flagbuf; 525 526 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 527 KGETRET(inode.i_e2din, &di, sizeof(struct ext2fs_dinode), 528 "vnode's dinode"); 529 530 inode.i_e2din = &di; 531 flag = ip->i_flag; 532 533 #if 0 534 if (flag & IN_LOCKED) 535 *flags++ = 'L'; 536 if (flag & IN_WANTED) 537 *flags++ = 'W'; 538 if (flag & IN_LWAIT) 539 *flags++ = 'Z'; 540 #endif 541 if (flag & IN_ACCESS) 542 *flags++ = 'A'; 543 if (flag & IN_CHANGE) 544 *flags++ = 'C'; 545 if (flag & IN_UPDATE) 546 *flags++ = 'U'; 547 if (flag & IN_MODIFIED) 548 *flags++ = 'M'; 549 if (flag & IN_RENAME) 550 *flags++ = 'R'; 551 if (flag & IN_SHLOCK) 552 *flags++ = 'S'; 553 if (flag & IN_EXLOCK) 554 *flags++ = 'E'; 555 if (flag == 0) 556 *flags++ = '-'; 557 *flags = '\0'; 558 559 (void)printf(" %6d %5s %2d", ip->i_number, flagbuf, ip->i_e2fs_size); 560 return (0); 561 } 562 563 void 564 nfs_header(void) 565 { 566 (void)printf(" FILEID NFLAG RDEV|SZ"); 567 } 568 569 int 570 nfs_print(struct vnode *vp) 571 { 572 struct nfsnode nfsnode, *np = &nfsnode; 573 char flagbuf[16], *flags = flagbuf; 574 int flag; 575 char *name; 576 mode_t type; 577 578 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 579 flag = np->n_flag; 580 if (flag & NFLUSHWANT) 581 *flags++ = 'W'; 582 if (flag & NFLUSHINPROG) 583 *flags++ = 'P'; 584 if (flag & NMODIFIED) 585 *flags++ = 'M'; 586 if (flag & NWRITEERR) 587 *flags++ = 'E'; 588 if (flag & NACC) 589 *flags++ = 'A'; 590 if (flag & NUPD) 591 *flags++ = 'U'; 592 if (flag & NCHG) 593 *flags++ = 'C'; 594 if (flag == 0) 595 *flags++ = '-'; 596 *flags = '\0'; 597 598 (void)printf(" %6ld %5s", np->n_vattr.va_fileid, flagbuf); 599 type = np->n_vattr.va_mode & S_IFMT; 600 if (S_ISCHR(np->n_vattr.va_mode) || S_ISBLK(np->n_vattr.va_mode)) 601 if (usenumflag || 602 ((name = devname(np->n_vattr.va_rdev, type)) == NULL)) 603 (void)printf(" %2d,%-2d", major(np->n_vattr.va_rdev), 604 minor(np->n_vattr.va_rdev)); 605 else 606 (void)printf(" %7s", name); 607 else 608 (void)printf(" %7qd", np->n_size); 609 return (0); 610 } 611 612 /* 613 * Given a pointer to a mount structure in kernel space, 614 * read it in and return a usable pointer to it. 615 */ 616 struct mount * 617 getmnt(struct mount *maddr) 618 { 619 static struct mtab { 620 struct mtab *next; 621 struct mount *maddr; 622 struct mount mount; 623 } *mhead = NULL; 624 struct mtab *mt; 625 626 for (mt = mhead; mt != NULL; mt = mt->next) 627 if (maddr == mt->maddr) 628 return (&mt->mount); 629 if ((mt = malloc(sizeof(struct mtab))) == NULL) 630 err(1, "malloc: mount table"); 631 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 632 mt->maddr = maddr; 633 mt->next = mhead; 634 mhead = mt; 635 return (&mt->mount); 636 } 637 638 void 639 mount_print(struct mount *mp) 640 { 641 int flags; 642 643 (void)printf("*** MOUNT "); 644 (void)printf("%.*s %s on %s", MFSNAMELEN, 645 mp->mnt_stat.f_fstypename, mp->mnt_stat.f_mntfromname, 646 mp->mnt_stat.f_mntonname); 647 if ((flags = mp->mnt_flag)) { 648 char *comma = "("; 649 650 putchar(' '); 651 /* user visible flags */ 652 if (flags & MNT_RDONLY) { 653 (void)printf("%srdonly", comma); 654 flags &= ~MNT_RDONLY; 655 comma = ","; 656 } 657 if (flags & MNT_SYNCHRONOUS) { 658 (void)printf("%ssynchronous", comma); 659 flags &= ~MNT_SYNCHRONOUS; 660 comma = ","; 661 } 662 if (flags & MNT_NOEXEC) { 663 (void)printf("%snoexec", comma); 664 flags &= ~MNT_NOEXEC; 665 comma = ","; 666 } 667 if (flags & MNT_NOSUID) { 668 (void)printf("%snosuid", comma); 669 flags &= ~MNT_NOSUID; 670 comma = ","; 671 } 672 if (flags & MNT_NODEV) { 673 (void)printf("%snodev", comma); 674 flags &= ~MNT_NODEV; 675 comma = ","; 676 } 677 if (flags & MNT_ASYNC) { 678 (void)printf("%sasync", comma); 679 flags &= ~MNT_ASYNC; 680 comma = ","; 681 } 682 if (flags & MNT_EXRDONLY) { 683 (void)printf("%sexrdonly", comma); 684 flags &= ~MNT_EXRDONLY; 685 comma = ","; 686 } 687 if (flags & MNT_EXPORTED) { 688 (void)printf("%sexport", comma); 689 flags &= ~MNT_EXPORTED; 690 comma = ","; 691 } 692 if (flags & MNT_DEFEXPORTED) { 693 (void)printf("%sdefdexported", comma); 694 flags &= ~MNT_DEFEXPORTED; 695 comma = ","; 696 } 697 if (flags & MNT_EXPORTANON) { 698 (void)printf("%sexportanon", comma); 699 flags &= ~MNT_EXPORTANON; 700 comma = ","; 701 } 702 if (flags & MNT_EXKERB) { 703 (void)printf("%sexkerb", comma); 704 flags &= ~MNT_EXKERB; 705 comma = ","; 706 } 707 if (flags & MNT_LOCAL) { 708 (void)printf("%slocal", comma); 709 flags &= ~MNT_LOCAL; 710 comma = ","; 711 } 712 if (flags & MNT_QUOTA) { 713 (void)printf("%squota", comma); 714 flags &= ~MNT_QUOTA; 715 comma = ","; 716 } 717 if (flags & MNT_ROOTFS) { 718 (void)printf("%srootfs", comma); 719 flags &= ~MNT_ROOTFS; 720 comma = ","; 721 } 722 if (flags & MNT_NOATIME) { 723 (void)printf("%snoatime", comma); 724 flags &= ~MNT_NOATIME; 725 comma = ","; 726 } 727 /* filesystem control flags */ 728 if (flags & MNT_UPDATE) { 729 (void)printf("%supdate", comma); 730 flags &= ~MNT_UPDATE; 731 comma = ","; 732 } 733 if (flags & MNT_DELEXPORT) { 734 (void)printf("%sdelexport", comma); 735 flags &= ~MNT_DELEXPORT; 736 comma = ","; 737 } 738 if (flags & MNT_RELOAD) { 739 (void)printf("%sreload", comma); 740 flags &= ~MNT_RELOAD; 741 comma = ","; 742 } 743 if (flags & MNT_FORCE) { 744 (void)printf("%sforce", comma); 745 flags &= ~MNT_FORCE; 746 comma = ","; 747 } 748 if (flags & MNT_WANTRDWR) { 749 (void)printf("%swantrdwr", comma); 750 flags &= ~MNT_WANTRDWR; 751 comma = ","; 752 } 753 if (flags & MNT_SOFTDEP) { 754 (void)printf("%ssoftdep", comma); 755 flags &= ~MNT_SOFTDEP; 756 comma = ","; 757 } 758 if (flags) 759 (void)printf("%sunknown_flags:%x", comma, flags); 760 (void)printf(")"); 761 } 762 (void)printf("\n"); 763 } 764 765 struct e_vnode * 766 loadvnodes(int *avnodes) 767 { 768 int mib[2]; 769 size_t copysize; 770 struct e_vnode *vnodebase; 771 772 if (memf != NULL) { 773 /* 774 * do it by hand 775 */ 776 return (kinfo_vnodes(avnodes)); 777 } 778 mib[0] = CTL_KERN; 779 mib[1] = KERN_VNODE; 780 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 781 err(1, "sysctl: KERN_VNODE"); 782 if ((vnodebase = malloc(copysize)) == NULL) 783 err(1, "malloc: vnode table"); 784 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 785 err(1, "sysctl: KERN_VNODE"); 786 if (copysize % sizeof(struct e_vnode)) 787 errx(1, "vnode size mismatch"); 788 *avnodes = copysize / sizeof(struct e_vnode); 789 790 return (vnodebase); 791 } 792 793 /* 794 * simulate what a running kernel does in kinfo_vnode 795 */ 796 struct e_vnode * 797 kinfo_vnodes(int *avnodes) 798 { 799 struct mntlist kvm_mountlist; 800 struct mount *mp, mount; 801 struct vnode *vp, vnode; 802 char *vbuf, *evbuf, *bp; 803 int mib[2], numvnodes; 804 size_t num; 805 806 if (kd == 0) { 807 mib[0] = CTL_KERN; 808 mib[1] = KERN_NUMVNODES; 809 num = sizeof(numvnodes); 810 if (sysctl(mib, 2, &numvnodes, &num, NULL, 0) < 0) 811 err(1, "sysctl(KERN_NUMVNODES) failed"); 812 } else 813 KGET(V_NUMV, numvnodes); 814 if ((vbuf = calloc(numvnodes + 20, 815 sizeof(struct vnode *) + sizeof(struct vnode))) == NULL) 816 err(1, "malloc: vnode buffer"); 817 bp = vbuf; 818 evbuf = vbuf + (numvnodes + 20) * 819 (sizeof(struct vnode *) + sizeof(struct vnode)); 820 KGET(V_MOUNTLIST, kvm_mountlist); 821 for (num = 0, mp = CIRCLEQ_FIRST(&kvm_mountlist); ; 822 mp = CIRCLEQ_NEXT(&mount, mnt_list)) { 823 KGET2(mp, &mount, sizeof(mount), "mount entry"); 824 for (vp = LIST_FIRST(&mount.mnt_vnodelist); 825 vp != NULL; vp = LIST_NEXT(&vnode, v_mntvnodes)) { 826 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 827 if ((bp + sizeof(struct vnode *) + 828 sizeof(struct vnode)) > evbuf) 829 /* XXX - should realloc */ 830 errx(1, "no more room for vnodes"); 831 memmove(bp, &vp, sizeof(struct vnode *)); 832 bp += sizeof(struct vnode *); 833 memmove(bp, &vnode, sizeof(struct vnode)); 834 bp += sizeof(struct vnode); 835 num++; 836 } 837 if (mp == CIRCLEQ_LAST(&kvm_mountlist)) 838 break; 839 } 840 *avnodes = num; 841 return ((struct e_vnode *)vbuf); 842 } 843 844 const char hdr[] = 845 " LINE RAW CAN OUT HWT LWT COL STATE SESS PGID DISC\n"; 846 847 void 848 tty2itty(struct tty *tp, struct itty *itp) 849 { 850 itp->t_dev = tp->t_dev; 851 itp->t_rawq_c_cc = tp->t_rawq.c_cc; 852 itp->t_canq_c_cc = tp->t_canq.c_cc; 853 itp->t_outq_c_cc = tp->t_outq.c_cc; 854 itp->t_hiwat = tp->t_hiwat; 855 itp->t_lowat = tp->t_lowat; 856 itp->t_column = tp->t_column; 857 itp->t_state = tp->t_state; 858 itp->t_session = tp->t_session; 859 if (tp->t_pgrp != NULL) 860 KGET2(&tp->t_pgrp->pg_id, &itp->t_pgrp_pg_id, sizeof(pid_t), "pgid"); 861 itp->t_line = tp->t_line; 862 } 863 864 void 865 ttymode(void) 866 { 867 struct ttylist_head tty_head; 868 struct tty *tp, tty; 869 int mib[3], ntty, i; 870 struct itty itty, *itp; 871 size_t nlen; 872 873 if (kd == 0) { 874 mib[0] = CTL_KERN; 875 mib[1] = KERN_TTYCOUNT; 876 nlen = sizeof(ntty); 877 if (sysctl(mib, 2, &ntty, &nlen, NULL, 0) < 0) 878 err(1, "sysctl(KERN_TTYCOUNT) failed"); 879 } else 880 KGET(TTY_NTTY, ntty); 881 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 882 (void)printf("%s", hdr); 883 if (kd == 0) { 884 mib[0] = CTL_KERN; 885 mib[1] = KERN_TTY; 886 mib[2] = KERN_TTY_INFO; 887 nlen = ntty * sizeof(struct itty); 888 if ((itp = malloc(nlen)) == NULL) 889 err(1, "malloc"); 890 if (sysctl(mib, 3, itp, &nlen, NULL, 0) < 0) 891 err(1, "sysctl(KERN_TTY_INFO) failed"); 892 for (i = 0; i < ntty; i++) 893 ttyprt(&itp[i]); 894 free(itp); 895 } else { 896 KGET(TTY_TTYLIST, tty_head); 897 for (tp = TAILQ_FIRST(&tty_head); tp; 898 tp = TAILQ_NEXT(&tty, tty_link)) { 899 KGET2(tp, &tty, sizeof tty, "tty struct"); 900 tty2itty(&tty, &itty); 901 ttyprt(&itty); 902 } 903 } 904 } 905 906 struct { 907 int flag; 908 char val; 909 } ttystates[] = { 910 { TS_WOPEN, 'W'}, 911 { TS_ISOPEN, 'O'}, 912 { TS_CARR_ON, 'C'}, 913 { TS_TIMEOUT, 'T'}, 914 { TS_FLUSH, 'F'}, 915 { TS_BUSY, 'B'}, 916 { TS_ASLEEP, 'A'}, 917 { TS_XCLUDE, 'X'}, 918 { TS_TTSTOP, 'S'}, 919 { TS_TBLOCK, 'K'}, 920 { TS_ASYNC, 'Y'}, 921 { TS_BKSL, 'D'}, 922 { TS_ERASE, 'E'}, 923 { TS_LNCH, 'L'}, 924 { TS_TYPEN, 'P'}, 925 { TS_CNTTB, 'N'}, 926 { 0, '\0'}, 927 }; 928 929 void 930 ttyprt(struct itty *tp) 931 { 932 char *name, state[20]; 933 int i, j; 934 935 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) 936 (void)printf("%2d,%-3d ", major(tp->t_dev), minor(tp->t_dev)); 937 else 938 (void)printf("%7s ", name); 939 (void)printf("%3d %4d ", tp->t_rawq_c_cc, tp->t_canq_c_cc); 940 (void)printf("%4d %4d %3d %6d ", tp->t_outq_c_cc, 941 tp->t_hiwat, tp->t_lowat, tp->t_column); 942 for (i = j = 0; ttystates[i].flag; i++) 943 if (tp->t_state&ttystates[i].flag) 944 state[j++] = ttystates[i].val; 945 if (j == 0) 946 state[j++] = '-'; 947 state[j] = '\0'; 948 (void)printf("%-6s %8lx", state, (u_long)tp->t_session & ~KERNBASE); 949 (void)printf("%6d ", tp->t_pgrp_pg_id); 950 switch (tp->t_line) { 951 case TTYDISC: 952 (void)printf("term\n"); 953 break; 954 case TABLDISC: 955 (void)printf("tab\n"); 956 break; 957 case SLIPDISC: 958 (void)printf("slip\n"); 959 break; 960 case PPPDISC: 961 (void)printf("ppp\n"); 962 break; 963 case STRIPDISC: 964 (void)printf("strip\n"); 965 break; 966 case NMEADISC: 967 (void)printf("nmea\n"); 968 break; 969 default: 970 (void)printf("%d\n", tp->t_line); 971 break; 972 } 973 } 974 975 void 976 filemode(void) 977 { 978 struct file fp, *ffp, *addr; 979 char *buf, flagbuf[16], *fbp; 980 static char *dtypes[] = { "???", "inode", "socket" }; 981 int mib[2], maxfile, nfile; 982 size_t len; 983 984 globalnl = vnodenl; 985 986 if (kd == 0) { 987 mib[0] = CTL_KERN; 988 mib[1] = KERN_MAXFILES; 989 len = sizeof(maxfile); 990 if (sysctl(mib, 2, &maxfile, &len, NULL, 0) < 0) 991 err(1, "sysctl(KERN_MAXFILES) failed"); 992 if (totalflag) { 993 mib[0] = CTL_KERN; 994 mib[1] = KERN_NFILES; 995 len = sizeof(nfile); 996 if (sysctl(mib, 2, &nfile, &len, NULL, 0) < 0) 997 err(1, "sysctl(KERN_NFILES) failed"); 998 } 999 } else { 1000 KGET(FNL_MAXFILE, maxfile); 1001 if (totalflag) { 1002 KGET(FNL_NFILE, nfile); 1003 (void)printf("%3d/%3d files\n", nfile, maxfile); 1004 return; 1005 } 1006 } 1007 1008 if (getfiles(&buf, &len) == -1) 1009 return; 1010 /* 1011 * Getfiles returns in malloc'd memory a pointer to the first file 1012 * structure, and then an array of file structs (whose addresses are 1013 * derivable from the previous entry). 1014 */ 1015 addr = LIST_FIRST((struct filelist *)buf); 1016 ffp = (struct file *)(buf + sizeof(struct filelist)); 1017 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 1018 1019 (void)printf("%d/%d open files\n", nfile, maxfile); 1020 1021 (void)printf("%*s TYPE FLG CNT MSG %*s OFFSET\n", 1022 2 * (int)sizeof(long), "LOC", 2 * (int)sizeof(long), "DATA"); 1023 for (; (char *)ffp < buf + len; addr = LIST_NEXT(ffp, f_list), ffp++) { 1024 memmove(&fp, ffp, sizeof fp); 1025 if ((unsigned)fp.f_type > DTYPE_SOCKET) 1026 continue; 1027 (void)printf("%0*lx ", 2 * (int)sizeof(long), (long)addr); 1028 (void)printf("%-8.8s", dtypes[fp.f_type]); 1029 fbp = flagbuf; 1030 if (fp.f_flag & FREAD) 1031 *fbp++ = 'R'; 1032 if (fp.f_flag & FWRITE) 1033 *fbp++ = 'W'; 1034 if (fp.f_flag & FAPPEND) 1035 *fbp++ = 'A'; 1036 if (fp.f_flag & FHASLOCK) 1037 *fbp++ = 'L'; 1038 if (fp.f_flag & FASYNC) 1039 *fbp++ = 'I'; 1040 *fbp = '\0'; 1041 (void)printf("%6s %3ld", flagbuf, fp.f_count); 1042 (void)printf(" %3ld", fp.f_msgcount); 1043 (void)printf(" %0*lx", 2 * (int)sizeof(long), (long)fp.f_data); 1044 1045 if (fp.f_offset == (off_t)-1) 1046 (void)printf(" *\n"); 1047 else if (fp.f_offset < 0) 1048 (void)printf(" %llx\n", (long long)fp.f_offset); 1049 else 1050 (void)printf(" %lld\n", (long long)fp.f_offset); 1051 } 1052 free(buf); 1053 } 1054 1055 int 1056 getfiles(char **abuf, size_t *alen) 1057 { 1058 size_t len; 1059 int mib[2]; 1060 char *buf; 1061 1062 /* 1063 * XXX 1064 * Add emulation of KINFO_FILE here. 1065 */ 1066 if (memf != NULL) 1067 errx(1, "files on dead kernel, not implemented"); 1068 1069 mib[0] = CTL_KERN; 1070 mib[1] = KERN_FILE; 1071 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 1072 warn("sysctl: KERN_FILE"); 1073 return (-1); 1074 } 1075 if ((buf = malloc(len)) == NULL) 1076 err(1, "malloc: KERN_FILE"); 1077 if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) { 1078 warn("sysctl: KERN_FILE"); 1079 free(buf); 1080 return (-1); 1081 } 1082 *abuf = buf; 1083 *alen = len; 1084 return (0); 1085 } 1086 1087 /* 1088 * swapmode is based on a program called swapinfo written 1089 * by Kevin Lahey <kml@rokkaku.atl.ga.us>. 1090 */ 1091 void 1092 swapmode(void) 1093 { 1094 char *header; 1095 int hlen = 10, nswap; 1096 int bdiv, i, avail, nfree, npfree, used; 1097 long blocksize; 1098 struct swapent *swdev; 1099 1100 if (kflag) { 1101 header = "1K-blocks"; 1102 blocksize = 1024; 1103 hlen = strlen(header); 1104 } else 1105 header = getbsize(&hlen, &blocksize); 1106 1107 nswap = swapctl(SWAP_NSWAP, 0, 0); 1108 if (nswap == 0) { 1109 if (!totalflag) 1110 (void)printf("%-11s %*s %8s %8s %8s %s\n", 1111 "Device", hlen, header, 1112 "Used", "Avail", "Capacity", "Priority"); 1113 (void)printf("%-11s %*d %8d %8d %5.0f%%\n", 1114 "Total", hlen, 0, 0, 0, 0.0); 1115 return; 1116 } 1117 if ((swdev = calloc(nswap, sizeof(*swdev))) == NULL) 1118 err(1, "malloc"); 1119 if (swapctl(SWAP_STATS, swdev, nswap) == -1) 1120 err(1, "swapctl"); 1121 1122 if (!totalflag) 1123 (void)printf("%-11s %*s %8s %8s %8s %s\n", 1124 "Device", hlen, header, 1125 "Used", "Avail", "Capacity", "Priority"); 1126 1127 /* Run through swap list, doing the funky monkey. */ 1128 bdiv = blocksize / DEV_BSIZE; 1129 avail = nfree = npfree = 0; 1130 for (i = 0; i < nswap; i++) { 1131 int xsize, xfree; 1132 1133 if (!(swdev[i].se_flags & SWF_ENABLE)) 1134 continue; 1135 1136 if (!totalflag) { 1137 if (usenumflag) 1138 (void)printf("%2d,%-2d %*d ", 1139 major(swdev[i].se_dev), 1140 minor(swdev[i].se_dev), 1141 hlen, swdev[i].se_nblks / bdiv); 1142 else 1143 (void)printf("%-11s %*d ", swdev[i].se_path, 1144 hlen, swdev[i].se_nblks / bdiv); 1145 } 1146 1147 xsize = swdev[i].se_nblks; 1148 used = swdev[i].se_inuse; 1149 xfree = xsize - used; 1150 nfree += (xsize - used); 1151 npfree++; 1152 avail += xsize; 1153 if (totalflag) 1154 continue; 1155 (void)printf("%8d %8d %5.0f%% %d\n", 1156 used / bdiv, xfree / bdiv, 1157 (double)used / (double)xsize * 100.0, 1158 swdev[i].se_priority); 1159 } 1160 free(swdev); 1161 1162 /* 1163 * If only one partition has been set up via swapon(8), we don't 1164 * need to bother with totals. 1165 */ 1166 used = avail - nfree; 1167 if (totalflag) { 1168 (void)printf("%dM/%dM swap space\n", 1169 used / (1048576 / DEV_BSIZE), 1170 avail / (1048576 / DEV_BSIZE)); 1171 return; 1172 } 1173 if (npfree > 1) { 1174 (void)printf("%-11s %*d %8d %8d %5.0f%%\n", 1175 "Total", hlen, avail / bdiv, used / bdiv, nfree / bdiv, 1176 (double)used / (double)avail * 100.0); 1177 } 1178 } 1179 1180 void 1181 usage(void) 1182 { 1183 (void)fprintf(stderr, "usage: " 1184 "pstat [-fknsTtv] [-d format] [-M core] [-N system] [symbols]\n"); 1185 exit(1); 1186 } 1187