pstat.c revision 1.51
1/* $OpenBSD: pstat.c,v 1.51 2005/05/26 01:44:38 pedro 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#ifndef lint 34static char copyright[] = 35"@(#) Copyright (c) 1980, 1991, 1993\n\ 36 The Regents of the University of California. All rights reserved.\n"; 37#endif /* not lint */ 38 39#ifndef lint 40#if 0 41from: static char sccsid[] = "@(#)pstat.c 8.9 (Berkeley) 2/16/94"; 42#else 43static char *rcsid = "$OpenBSD: pstat.c,v 1.51 2005/05/26 01:44:38 pedro Exp $"; 44#endif 45#endif /* not lint */ 46 47#include <sys/param.h> 48#include <sys/time.h> 49#include <sys/buf.h> 50#include <sys/vnode.h> 51#include <sys/ucred.h> 52#define _KERNEL 53#include <sys/file.h> 54#include <ufs/ufs/quota.h> 55#include <ufs/ufs/inode.h> 56#define NFS 57#include <sys/mount.h> 58#undef NFS 59#undef _KERNEL 60#include <sys/stat.h> 61#include <nfs/nfsproto.h> 62#include <nfs/rpcv2.h> 63#include <nfs/nfsnode.h> 64#include <sys/ioctl.h> 65#include <sys/tty.h> 66#include <sys/conf.h> 67#include <sys/device.h> 68#include <sys/swap.h> 69 70#include <sys/sysctl.h> 71 72#include <err.h> 73#include <kvm.h> 74#include <limits.h> 75#include <nlist.h> 76#include <paths.h> 77#include <stdio.h> 78#include <stdlib.h> 79#include <string.h> 80#include <unistd.h> 81 82struct nlist nl[] = { 83#define FNL_NFILE 0 /* sysctl */ 84 {"_nfiles"}, 85#define FNL_MAXFILE 1 /* sysctl */ 86 {"_maxfiles"}, 87#define TTY_NTTY 2 /* sysctl */ 88 {"_tty_count"}, 89#define V_NUMV 3 /* sysctl */ 90 { "_numvnodes" }, 91#define TTY_TTYLIST 4 /* sysctl */ 92 {"_ttylist"}, 93#define V_MOUNTLIST 5 /* no sysctl */ 94 { "_mountlist" }, 95 { "" } 96}; 97 98int usenumflag; 99int totalflag; 100int kflag; 101char *nlistf = NULL; 102char *memf = NULL; 103kvm_t *kd = NULL; 104 105#define SVAR(var) __STRING(var) /* to force expansion */ 106#define KGET(idx, var) \ 107 KGET1(idx, &var, sizeof(var), SVAR(var)) 108#define KGET1(idx, p, s, msg) \ 109 KGET2(nl[idx].n_value, p, s, msg) 110#define KGET2(addr, p, s, msg) \ 111 if (kvm_read(kd, (u_long)(addr), p, s) != s) \ 112 warnx("cannot read %s: %s", msg, kvm_geterr(kd)) 113#define KGETRET(addr, p, s, msg) \ 114 if (kvm_read(kd, (u_long)(addr), p, s) != s) { \ 115 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 116 return (0); \ 117 } 118 119void filemode(void); 120int getfiles(char **, size_t *); 121struct mount * 122 getmnt(struct mount *); 123struct e_vnode * 124 kinfo_vnodes(int *); 125struct e_vnode * 126 loadvnodes(int *); 127void mount_print(struct mount *); 128void nfs_header(void); 129int nfs_print(struct vnode *); 130void swapmode(void); 131void ttymode(void); 132void ttyprt(struct itty *); 133void ufs_header(void); 134int ufs_print(struct vnode *); 135void ext2fs_header(void); 136int ext2fs_print(struct vnode *); 137void usage(void); 138void vnode_header(void); 139void vnode_print(struct vnode *, struct vnode *); 140void vnodemode(void); 141 142int 143main(int argc, char *argv[]) 144{ 145 int fileflag = 0, swapflag = 0, ttyflag = 0, vnodeflag = 0; 146 char buf[_POSIX2_LINE_MAX]; 147 int ch; 148 extern char *optarg; 149 extern int optind; 150 gid_t gid; 151 152 while ((ch = getopt(argc, argv, "TM:N:fiknstv")) != -1) 153 switch (ch) { 154 case 'f': 155 fileflag = 1; 156 break; 157 case 'M': 158 memf = optarg; 159 break; 160 case 'N': 161 nlistf = optarg; 162 break; 163 case 'n': 164 usenumflag = 1; 165 break; 166 case 's': 167 swapflag = 1; 168 break; 169 case 'T': 170 totalflag = 1; 171 break; 172 case 't': 173 ttyflag = 1; 174 break; 175 case 'k': 176 kflag = 1; 177 break; 178 case 'v': 179 case 'i': /* Backward compatibility. */ 180 vnodeflag = 1; 181 break; 182 default: 183 usage(); 184 } 185 argc -= optind; 186 argv += optind; 187 188 /* 189 * Discard setgid privileges if not the running kernel so that bad 190 * guys can't print interesting stuff from kernel memory. 191 */ 192 gid = getgid(); 193 if (nlistf != NULL || memf != NULL) 194 if (setresgid(gid, gid, gid) == -1) 195 err(1, "setresgid"); 196 197 if (vnodeflag) 198 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0) 199 errx(1, "kvm_openfiles: %s", buf); 200 201 if (nlistf == NULL && memf == NULL) 202 if (setresgid(gid, gid, gid) == -1) 203 err(1, "setresgid"); 204 205 if (vnodeflag) 206 if (kvm_nlist(kd, nl) == -1) 207 errx(1, "kvm_nlist: %s", kvm_geterr(kd)); 208 209 if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag)) 210 usage(); 211 if (fileflag || totalflag) 212 filemode(); 213 if (vnodeflag || totalflag) 214 vnodemode(); 215 if (ttyflag) 216 ttymode(); 217 if (swapflag || totalflag) 218 swapmode(); 219 exit(0); 220} 221 222void 223vnodemode(void) 224{ 225 struct e_vnode *e_vnodebase, *endvnode, *evp; 226 struct vnode *vp; 227 struct mount *maddr, *mp = NULL; 228 int numvnodes; 229 230 e_vnodebase = loadvnodes(&numvnodes); 231 if (totalflag) { 232 (void)printf("%7d vnodes\n", numvnodes); 233 return; 234 } 235 endvnode = e_vnodebase + numvnodes; 236 (void)printf("%d active vnodes\n", numvnodes); 237 238 maddr = NULL; 239 for (evp = e_vnodebase; evp < endvnode; evp++) { 240 vp = &evp->vnode; 241 if (vp->v_mount != maddr) { 242 /* 243 * New filesystem 244 */ 245 if ((mp = getmnt(vp->v_mount)) == NULL) 246 continue; 247 maddr = vp->v_mount; 248 mount_print(mp); 249 vnode_header(); 250 if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_FFS, MFSNAMELEN) || 251 !strncmp(mp->mnt_stat.f_fstypename, MOUNT_MFS, MFSNAMELEN)) { 252 ufs_header(); 253 } else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_NFS, 254 MFSNAMELEN)) { 255 nfs_header(); 256 } else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_EXT2FS, 257 MFSNAMELEN)) { 258 ext2fs_header(); 259 } 260 (void)printf("\n"); 261 } 262 vnode_print(evp->vptr, vp); 263 if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_FFS, MFSNAMELEN) || 264 !strncmp(mp->mnt_stat.f_fstypename, MOUNT_MFS, MFSNAMELEN)) { 265 ufs_print(vp); 266 } else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_NFS, MFSNAMELEN)) { 267 nfs_print(vp); 268 } else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_EXT2FS, 269 MFSNAMELEN)) { 270 ext2fs_print(vp); 271 } 272 (void)printf("\n"); 273 } 274 free(e_vnodebase); 275} 276 277void 278vnode_header(void) 279{ 280 (void)printf("ADDR TYP VFLAG USE HOLD"); 281} 282 283void 284vnode_print(struct vnode *avnode, struct vnode *vp) 285{ 286 char *type, flags[16]; 287 char *fp = flags; 288 int flag; 289 290 /* 291 * set type 292 */ 293 switch (vp->v_type) { 294 case VNON: 295 type = "non"; break; 296 case VREG: 297 type = "reg"; break; 298 case VDIR: 299 type = "dir"; break; 300 case VBLK: 301 type = "blk"; break; 302 case VCHR: 303 type = "chr"; break; 304 case VLNK: 305 type = "lnk"; break; 306 case VSOCK: 307 type = "soc"; break; 308 case VFIFO: 309 type = "fif"; break; 310 case VBAD: 311 type = "bad"; break; 312 default: 313 type = "unk"; break; 314 } 315 /* 316 * gather flags 317 */ 318 flag = vp->v_flag; 319 if (flag & VROOT) 320 *fp++ = 'R'; 321 if (flag & VTEXT) 322 *fp++ = 'T'; 323 if (flag & VSYSTEM) 324 *fp++ = 'S'; 325 if (flag & VISTTY) 326 *fp++ = 'I'; 327 if (flag & VXLOCK) 328 *fp++ = 'L'; 329 if (flag & VXWANT) 330 *fp++ = 'W'; 331 if (vp->v_bioflag & VBIOWAIT) 332 *fp++ = 'B'; 333 if (flag & VALIASED) 334 *fp++ = 'A'; 335 if (vp->v_bioflag & VBIOONFREELIST) 336 *fp++ = 'F'; 337 if (flag & VLOCKSWORK) 338 *fp++ = 'l'; 339 if (vp->v_bioflag & VBIOONSYNCLIST) 340 *fp++ = 's'; 341 if (flag == 0) 342 *fp++ = '-'; 343 *fp = '\0'; 344 (void)printf("%8lx %s %5s %4d %4u", 345 (long)avnode, type, flags, vp->v_usecount, vp->v_holdcnt); 346} 347 348void 349ufs_header(void) 350{ 351 (void)printf(" FILEID IFLAG RDEV|SZ"); 352} 353 354int 355ufs_print(struct vnode *vp) 356{ 357 int flag; 358 struct inode inode, *ip = &inode; 359 char flagbuf[16], *flags = flagbuf; 360 char *name; 361 mode_t type; 362 363 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 364 flag = ip->i_flag; 365#if 0 366 if (flag & IN_LOCKED) 367 *flags++ = 'L'; 368 if (flag & IN_WANTED) 369 *flags++ = 'W'; 370 if (flag & IN_LWAIT) 371 *flags++ = 'Z'; 372#endif 373 if (flag & IN_ACCESS) 374 *flags++ = 'A'; 375 if (flag & IN_CHANGE) 376 *flags++ = 'C'; 377 if (flag & IN_UPDATE) 378 *flags++ = 'U'; 379 if (flag & IN_MODIFIED) 380 *flags++ = 'M'; 381 if (flag & IN_RENAME) 382 *flags++ = 'R'; 383 if (flag & IN_SHLOCK) 384 *flags++ = 'S'; 385 if (flag & IN_EXLOCK) 386 *flags++ = 'E'; 387 if (flag == 0) 388 *flags++ = '-'; 389 *flags = '\0'; 390 391 (void)printf(" %6d %5s", ip->i_number, flagbuf); 392 type = ip->i_ffs_mode & S_IFMT; 393 if (S_ISCHR(ip->i_ffs_mode) || S_ISBLK(ip->i_ffs_mode)) 394 if (usenumflag || 395 ((name = devname(ip->i_ffs_rdev, type)) == NULL)) 396 (void)printf(" %2d,%-2d", 397 major(ip->i_ffs_rdev), minor(ip->i_ffs_rdev)); 398 else 399 (void)printf(" %7s", name); 400 else 401 (void)printf(" %7qd", ip->i_ffs_size); 402 return (0); 403} 404 405void 406ext2fs_header(void) 407{ 408 (void)printf(" FILEID IFLAG SZ"); 409} 410 411int 412ext2fs_print(struct vnode *vp) 413{ 414 int flag; 415 struct inode inode, *ip = &inode; 416 char flagbuf[16], *flags = flagbuf; 417 418 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 419 flag = ip->i_flag; 420#if 0 421 if (flag & IN_LOCKED) 422 *flags++ = 'L'; 423 if (flag & IN_WANTED) 424 *flags++ = 'W'; 425 if (flag & IN_LWAIT) 426 *flags++ = 'Z'; 427#endif 428 if (flag & IN_ACCESS) 429 *flags++ = 'A'; 430 if (flag & IN_CHANGE) 431 *flags++ = 'C'; 432 if (flag & IN_UPDATE) 433 *flags++ = 'U'; 434 if (flag & IN_MODIFIED) 435 *flags++ = 'M'; 436 if (flag & IN_RENAME) 437 *flags++ = 'R'; 438 if (flag & IN_SHLOCK) 439 *flags++ = 'S'; 440 if (flag & IN_EXLOCK) 441 *flags++ = 'E'; 442 if (flag == 0) 443 *flags++ = '-'; 444 *flags = '\0'; 445 446 (void)printf(" %6d %5s %2d", ip->i_number, flagbuf, ip->i_e2fs_size); 447 return (0); 448} 449 450void 451nfs_header(void) 452{ 453 (void)printf(" FILEID NFLAG RDEV|SZ"); 454} 455 456int 457nfs_print(struct vnode *vp) 458{ 459 struct nfsnode nfsnode, *np = &nfsnode; 460 char flagbuf[16], *flags = flagbuf; 461 int flag; 462 char *name; 463 mode_t type; 464 465 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 466 flag = np->n_flag; 467 if (flag & NFLUSHWANT) 468 *flags++ = 'W'; 469 if (flag & NFLUSHINPROG) 470 *flags++ = 'P'; 471 if (flag & NMODIFIED) 472 *flags++ = 'M'; 473 if (flag & NWRITEERR) 474 *flags++ = 'E'; 475 if (flag & NACC) 476 *flags++ = 'A'; 477 if (flag & NUPD) 478 *flags++ = 'U'; 479 if (flag & NCHG) 480 *flags++ = 'C'; 481 if (flag == 0) 482 *flags++ = '-'; 483 *flags = '\0'; 484 485 (void)printf(" %6ld %5s", np->n_vattr.va_fileid, flagbuf); 486 type = np->n_vattr.va_mode & S_IFMT; 487 if (S_ISCHR(np->n_vattr.va_mode) || S_ISBLK(np->n_vattr.va_mode)) 488 if (usenumflag || 489 ((name = devname(np->n_vattr.va_rdev, type)) == NULL)) 490 (void)printf(" %2d,%-2d", major(np->n_vattr.va_rdev), 491 minor(np->n_vattr.va_rdev)); 492 else 493 (void)printf(" %7s", name); 494 else 495 (void)printf(" %7qd", np->n_size); 496 return (0); 497} 498 499/* 500 * Given a pointer to a mount structure in kernel space, 501 * read it in and return a usable pointer to it. 502 */ 503struct mount * 504getmnt(struct mount *maddr) 505{ 506 static struct mtab { 507 struct mtab *next; 508 struct mount *maddr; 509 struct mount mount; 510 } *mhead = NULL; 511 struct mtab *mt; 512 513 for (mt = mhead; mt != NULL; mt = mt->next) 514 if (maddr == mt->maddr) 515 return (&mt->mount); 516 if ((mt = malloc(sizeof(struct mtab))) == NULL) 517 err(1, "malloc: mount table"); 518 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 519 mt->maddr = maddr; 520 mt->next = mhead; 521 mhead = mt; 522 return (&mt->mount); 523} 524 525void 526mount_print(struct mount *mp) 527{ 528 int flags; 529 530 (void)printf("*** MOUNT "); 531 (void)printf("%.*s %s on %s", MFSNAMELEN, 532 mp->mnt_stat.f_fstypename, mp->mnt_stat.f_mntfromname, 533 mp->mnt_stat.f_mntonname); 534 if ((flags = mp->mnt_flag)) { 535 char *comma = "("; 536 537 putchar(' '); 538 /* user visable flags */ 539 if (flags & MNT_RDONLY) { 540 (void)printf("%srdonly", comma); 541 flags &= ~MNT_RDONLY; 542 comma = ","; 543 } 544 if (flags & MNT_SYNCHRONOUS) { 545 (void)printf("%ssynchronous", comma); 546 flags &= ~MNT_SYNCHRONOUS; 547 comma = ","; 548 } 549 if (flags & MNT_NOEXEC) { 550 (void)printf("%snoexec", comma); 551 flags &= ~MNT_NOEXEC; 552 comma = ","; 553 } 554 if (flags & MNT_NOSUID) { 555 (void)printf("%snosuid", comma); 556 flags &= ~MNT_NOSUID; 557 comma = ","; 558 } 559 if (flags & MNT_NODEV) { 560 (void)printf("%snodev", comma); 561 flags &= ~MNT_NODEV; 562 comma = ","; 563 } 564 if (flags & MNT_ASYNC) { 565 (void)printf("%sasync", comma); 566 flags &= ~MNT_ASYNC; 567 comma = ","; 568 } 569 if (flags & MNT_EXRDONLY) { 570 (void)printf("%sexrdonly", comma); 571 flags &= ~MNT_EXRDONLY; 572 comma = ","; 573 } 574 if (flags & MNT_EXPORTED) { 575 (void)printf("%sexport", comma); 576 flags &= ~MNT_EXPORTED; 577 comma = ","; 578 } 579 if (flags & MNT_DEFEXPORTED) { 580 (void)printf("%sdefdexported", comma); 581 flags &= ~MNT_DEFEXPORTED; 582 comma = ","; 583 } 584 if (flags & MNT_EXPORTANON) { 585 (void)printf("%sexportanon", comma); 586 flags &= ~MNT_EXPORTANON; 587 comma = ","; 588 } 589 if (flags & MNT_EXKERB) { 590 (void)printf("%sexkerb", comma); 591 flags &= ~MNT_EXKERB; 592 comma = ","; 593 } 594 if (flags & MNT_LOCAL) { 595 (void)printf("%slocal", comma); 596 flags &= ~MNT_LOCAL; 597 comma = ","; 598 } 599 if (flags & MNT_QUOTA) { 600 (void)printf("%squota", comma); 601 flags &= ~MNT_QUOTA; 602 comma = ","; 603 } 604 if (flags & MNT_ROOTFS) { 605 (void)printf("%srootfs", comma); 606 flags &= ~MNT_ROOTFS; 607 comma = ","; 608 } 609 if (flags & MNT_NOATIME) { 610 (void)printf("%snoatime", comma); 611 flags &= ~MNT_NOATIME; 612 comma = ","; 613 } 614 /* filesystem control flags */ 615 if (flags & MNT_UPDATE) { 616 (void)printf("%supdate", comma); 617 flags &= ~MNT_UPDATE; 618 comma = ","; 619 } 620 if (flags & MNT_DELEXPORT) { 621 (void)printf("%sdelexport", comma); 622 flags &= ~MNT_DELEXPORT; 623 comma = ","; 624 } 625 if (flags & MNT_RELOAD) { 626 (void)printf("%sreload", comma); 627 flags &= ~MNT_RELOAD; 628 comma = ","; 629 } 630 if (flags & MNT_FORCE) { 631 (void)printf("%sforce", comma); 632 flags &= ~MNT_FORCE; 633 comma = ","; 634 } 635 if (flags & MNT_WANTRDWR) { 636 (void)printf("%swantrdwr", comma); 637 flags &= ~MNT_WANTRDWR; 638 comma = ","; 639 } 640 if (flags & MNT_SOFTDEP) { 641 (void)printf("%ssoftdep", comma); 642 flags &= ~MNT_SOFTDEP; 643 comma = ","; 644 } 645 if (flags) 646 (void)printf("%sunknown_flags:%x", comma, flags); 647 (void)printf(")"); 648 } 649 (void)printf("\n"); 650} 651 652struct e_vnode * 653loadvnodes(int *avnodes) 654{ 655 int mib[2]; 656 size_t copysize; 657 struct e_vnode *vnodebase; 658 659 if (memf != NULL) { 660 /* 661 * do it by hand 662 */ 663 return (kinfo_vnodes(avnodes)); 664 } 665 mib[0] = CTL_KERN; 666 mib[1] = KERN_VNODE; 667 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 668 err(1, "sysctl: KERN_VNODE"); 669 if ((vnodebase = malloc(copysize)) == NULL) 670 err(1, "malloc: vnode table"); 671 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 672 err(1, "sysctl: KERN_VNODE"); 673 if (copysize % sizeof(struct e_vnode)) 674 errx(1, "vnode size mismatch"); 675 *avnodes = copysize / sizeof(struct e_vnode); 676 677 return (vnodebase); 678} 679 680/* 681 * simulate what a running kernel does in in kinfo_vnode 682 */ 683struct e_vnode * 684kinfo_vnodes(int *avnodes) 685{ 686 struct mntlist mountlist; 687 struct mount *mp, mount; 688 struct vnode *vp, vnode; 689 char *vbuf, *evbuf, *bp; 690 int mib[2], numvnodes; 691 size_t num; 692 693 if (kd == 0) { 694 mib[0] = CTL_KERN; 695 mib[1] = KERN_NUMVNODES; 696 num = sizeof(numvnodes); 697 if (sysctl(mib, 2, &numvnodes, &num, NULL, 0) < 0) 698 err(1, "sysctl(KERN_NUMVNODES) failed"); 699 } else 700 KGET(V_NUMV, numvnodes); 701 if ((vbuf = malloc((numvnodes + 20) * 702 (sizeof(struct vnode *) + sizeof(struct vnode)))) == NULL) 703 err(1, "malloc: vnode buffer"); 704 bp = vbuf; 705 evbuf = vbuf + (numvnodes + 20) * 706 (sizeof(struct vnode *) + sizeof(struct vnode)); 707 KGET(V_MOUNTLIST, mountlist); 708 for (num = 0, mp = mountlist.cqh_first; ; mp = mount.mnt_list.cqe_next) { 709 KGET2(mp, &mount, sizeof(mount), "mount entry"); 710 for (vp = mount.mnt_vnodelist.lh_first; 711 vp != NULL; vp = vnode.v_mntvnodes.le_next) { 712 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 713 if ((bp + sizeof(struct vnode *) + 714 sizeof(struct vnode)) > evbuf) 715 /* XXX - should realloc */ 716 errx(1, "no more room for vnodes"); 717 memmove(bp, &vp, sizeof(struct vnode *)); 718 bp += sizeof(struct vnode *); 719 memmove(bp, &vnode, sizeof(struct vnode)); 720 bp += sizeof(struct vnode); 721 num++; 722 } 723 if (mp == mountlist.cqh_last) 724 break; 725 } 726 *avnodes = num; 727 return ((struct e_vnode *)vbuf); 728} 729 730const char hdr[] = 731" LINE RAW CAN OUT HWT LWT COL STATE SESS PGID DISC\n"; 732 733void 734tty2itty(struct tty *tp, struct itty *itp) 735{ 736 itp->t_dev = tp->t_dev; 737 itp->t_rawq_c_cc = tp->t_rawq.c_cc; 738 itp->t_canq_c_cc = tp->t_canq.c_cc; 739 itp->t_outq_c_cc = tp->t_outq.c_cc; 740 itp->t_hiwat = tp->t_hiwat; 741 itp->t_lowat = tp->t_lowat; 742 itp->t_column = tp->t_column; 743 itp->t_state = tp->t_state; 744 itp->t_session = tp->t_session; 745 if (tp->t_pgrp != NULL) 746 KGET2(&tp->t_pgrp->pg_id, &itp->t_pgrp_pg_id, sizeof(pid_t), "pgid"); 747 itp->t_line = tp->t_line; 748} 749 750void 751ttymode(void) 752{ 753 struct ttylist_head tty_head; 754 struct tty *tp, tty; 755 int mib[3], ntty, i; 756 struct itty itty, *itp; 757 size_t nlen; 758 759 if (kd == 0) { 760 mib[0] = CTL_KERN; 761 mib[1] = KERN_TTYCOUNT; 762 nlen = sizeof(ntty); 763 if (sysctl(mib, 2, &ntty, &nlen, NULL, 0) < 0) 764 err(1, "sysctl(KERN_TTYCOUNT) failed"); 765 } else 766 KGET(TTY_NTTY, ntty); 767 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 768 (void)printf("%s", hdr); 769 if (kd == 0) { 770 mib[0] = CTL_KERN; 771 mib[1] = KERN_TTY; 772 mib[2] = KERN_TTY_INFO; 773 nlen = ntty * sizeof(struct itty); 774 if ((itp = malloc(nlen)) == NULL) 775 err(1, "malloc"); 776 if (sysctl(mib, 3, itp, &nlen, NULL, 0) < 0) 777 err(1, "sysctl(KERN_TTY_INFO) failed"); 778 for (i = 0; i < ntty; i++) 779 ttyprt(&itp[i]); 780 free(itp); 781 } else { 782 KGET(TTY_TTYLIST, tty_head); 783 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 784 KGET2(tp, &tty, sizeof tty, "tty struct"); 785 tty2itty(&tty, &itty); 786 ttyprt(&itty); 787 } 788 } 789} 790 791struct { 792 int flag; 793 char val; 794} ttystates[] = { 795 { TS_WOPEN, 'W'}, 796 { TS_ISOPEN, 'O'}, 797 { TS_CARR_ON, 'C'}, 798 { TS_TIMEOUT, 'T'}, 799 { TS_FLUSH, 'F'}, 800 { TS_BUSY, 'B'}, 801 { TS_ASLEEP, 'A'}, 802 { TS_XCLUDE, 'X'}, 803 { TS_TTSTOP, 'S'}, 804 { TS_TBLOCK, 'K'}, 805 { TS_ASYNC, 'Y'}, 806 { TS_BKSL, 'D'}, 807 { TS_ERASE, 'E'}, 808 { TS_LNCH, 'L'}, 809 { TS_TYPEN, 'P'}, 810 { TS_CNTTB, 'N'}, 811 { 0, '\0'}, 812}; 813 814void 815ttyprt(struct itty *tp) 816{ 817 char *name, state[20]; 818 int i, j; 819 820 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) 821 (void)printf("%2d,%-3d ", major(tp->t_dev), minor(tp->t_dev)); 822 else 823 (void)printf("%7s ", name); 824 (void)printf("%3d %4d ", tp->t_rawq_c_cc, tp->t_canq_c_cc); 825 (void)printf("%4d %4d %3d %6d ", tp->t_outq_c_cc, 826 tp->t_hiwat, tp->t_lowat, tp->t_column); 827 for (i = j = 0; ttystates[i].flag; i++) 828 if (tp->t_state&ttystates[i].flag) 829 state[j++] = ttystates[i].val; 830 if (j == 0) 831 state[j++] = '-'; 832 state[j] = '\0'; 833 (void)printf("%-6s %8lx", state, (u_long)tp->t_session & ~KERNBASE); 834 (void)printf("%6d ", tp->t_pgrp_pg_id); 835 switch (tp->t_line) { 836 case TTYDISC: 837 (void)printf("term\n"); 838 break; 839 case TABLDISC: 840 (void)printf("tab\n"); 841 break; 842 case SLIPDISC: 843 (void)printf("slip\n"); 844 break; 845 case PPPDISC: 846 (void)printf("ppp\n"); 847 break; 848 case STRIPDISC: 849 (void)printf("strip\n"); 850 break; 851 default: 852 (void)printf("%d\n", tp->t_line); 853 break; 854 } 855} 856 857void 858filemode(void) 859{ 860 struct file fp, *ffp, *addr; 861 char *buf, flagbuf[16], *fbp; 862 static char *dtypes[] = { "???", "inode", "socket" }; 863 int mib[2], maxfile, nfile; 864 size_t len; 865 866 if (kd == 0) { 867 mib[0] = CTL_KERN; 868 mib[1] = KERN_MAXFILES; 869 len = sizeof(maxfile); 870 if (sysctl(mib, 2, &maxfile, &len, NULL, 0) < 0) 871 err(1, "sysctl(KERN_MAXFILES) failed"); 872 if (totalflag) { 873 mib[0] = CTL_KERN; 874 mib[1] = KERN_NFILES; 875 len = sizeof(nfile); 876 if (sysctl(mib, 2, &nfile, &len, NULL, 0) < 0) 877 err(1, "sysctl(KERN_NFILES) failed"); 878 } 879 } else { 880 KGET(FNL_MAXFILE, maxfile); 881 if (totalflag) { 882 KGET(FNL_NFILE, nfile); 883 (void)printf("%3d/%3d files\n", nfile, maxfile); 884 return; 885 } 886 } 887 888 if (getfiles(&buf, &len) == -1) 889 return; 890 /* 891 * Getfiles returns in malloc'd memory a pointer to the first file 892 * structure, and then an array of file structs (whose addresses are 893 * derivable from the previous entry). 894 */ 895 addr = ((struct filelist *)buf)->lh_first; 896 ffp = (struct file *)(buf + sizeof(struct filelist)); 897 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 898 899 (void)printf("%d/%d open files\n", nfile, maxfile); 900 901 (void)printf("%*s TYPE FLG CNT MSG %*s OFFSET\n", 902 8, "LOC", 8, "DATA"); 903 for (; (char *)ffp < buf + len; addr = ffp->f_list.le_next, ffp++) { 904 memmove(&fp, ffp, sizeof fp); 905 if ((unsigned)fp.f_type > DTYPE_SOCKET) 906 continue; 907 (void)printf("%lx ", (long)addr); 908 (void)printf("%-8.8s", dtypes[fp.f_type]); 909 fbp = flagbuf; 910 if (fp.f_flag & FREAD) 911 *fbp++ = 'R'; 912 if (fp.f_flag & FWRITE) 913 *fbp++ = 'W'; 914 if (fp.f_flag & FAPPEND) 915 *fbp++ = 'A'; 916 if (fp.f_flag & FHASLOCK) 917 *fbp++ = 'L'; 918 if (fp.f_flag & FASYNC) 919 *fbp++ = 'I'; 920 *fbp = '\0'; 921 (void)printf("%6s %3ld", flagbuf, fp.f_count); 922 (void)printf(" %3ld", fp.f_msgcount); 923 (void)printf(" %8.1lx", (long)fp.f_data); 924 925 if (fp.f_offset < 0) 926 (void)printf(" %llx\n", (long long)fp.f_offset); 927 else 928 (void)printf(" %lld\n", (long long)fp.f_offset); 929 } 930 free(buf); 931} 932 933int 934getfiles(char **abuf, size_t *alen) 935{ 936 size_t len; 937 int mib[2]; 938 char *buf; 939 940 /* 941 * XXX 942 * Add emulation of KINFO_FILE here. 943 */ 944 if (memf != NULL) 945 errx(1, "files on dead kernel, not implemented"); 946 947 mib[0] = CTL_KERN; 948 mib[1] = KERN_FILE; 949 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 950 warn("sysctl: KERN_FILE"); 951 return (-1); 952 } 953 if ((buf = malloc(len)) == NULL) 954 err(1, "malloc: KERN_FILE"); 955 if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) { 956 warn("sysctl: KERN_FILE"); 957 free(buf); 958 return (-1); 959 } 960 *abuf = buf; 961 *alen = len; 962 return (0); 963} 964 965/* 966 * swapmode is based on a program called swapinfo written 967 * by Kevin Lahey <kml@rokkaku.atl.ga.us>. 968 */ 969void 970swapmode(void) 971{ 972 char *header; 973 int hlen = 10, nswap; 974 int div, i, avail, nfree, npfree, used; 975 long blocksize; 976 struct swapent *swdev; 977 978 if (kflag) { 979 header = "1K-blocks"; 980 blocksize = 1024; 981 hlen = strlen(header); 982 } else 983 header = getbsize(&hlen, &blocksize); 984 985 nswap = swapctl(SWAP_NSWAP, 0, 0); 986 if (nswap == 0) { 987 if (!totalflag) 988 (void)printf("%-11s %*s %8s %8s %8s %s\n", 989 "Device", hlen, header, 990 "Used", "Avail", "Capacity", "Priority"); 991 (void)printf("%-11s %*d %8d %8d %5.0f%%\n", 992 "Total", hlen, 0, 0, 0, 0.0); 993 return; 994 } 995 if ((swdev = malloc(nswap * sizeof(*swdev))) == NULL) 996 err(1, "malloc"); 997 if (swapctl(SWAP_STATS, swdev, nswap) == -1) 998 err(1, "swapctl"); 999 1000 if (!totalflag) 1001 (void)printf("%-11s %*s %8s %8s %8s %s\n", 1002 "Device", hlen, header, 1003 "Used", "Avail", "Capacity", "Priority"); 1004 1005 /* Run through swap list, doing the funky monkey. */ 1006 div = blocksize / DEV_BSIZE; 1007 avail = nfree = npfree = 0; 1008 for (i = 0; i < nswap; i++) { 1009 int xsize, xfree; 1010 1011 if (!(swdev[i].se_flags & SWF_ENABLE)) 1012 continue; 1013 1014 if (!totalflag) { 1015 if (usenumflag) 1016 (void)printf("%2d,%-2d %*d ", 1017 major(swdev[i].se_dev), 1018 minor(swdev[i].se_dev), 1019 hlen, swdev[i].se_nblks / div); 1020 else 1021 (void)printf("%-11s %*d ", swdev[i].se_path, 1022 hlen, swdev[i].se_nblks / div); 1023 } 1024 1025 xsize = swdev[i].se_nblks; 1026 used = swdev[i].se_inuse; 1027 xfree = xsize - used; 1028 nfree += (xsize - used); 1029 npfree++; 1030 avail += xsize; 1031 if (totalflag) 1032 continue; 1033 (void)printf("%8d %8d %5.0f%% %d\n", 1034 used / div, xfree / div, 1035 (double)used / (double)xsize * 100.0, 1036 swdev[i].se_priority); 1037 } 1038 free(swdev); 1039 1040 /* 1041 * If only one partition has been set up via swapon(8), we don't 1042 * need to bother with totals. 1043 */ 1044 used = avail - nfree; 1045 if (totalflag) { 1046 (void)printf("%dM/%dM swap space\n", 1047 used / (1048576 / DEV_BSIZE), 1048 avail / (1048576 / DEV_BSIZE)); 1049 return; 1050 } 1051 if (npfree > 1) { 1052 (void)printf("%-11s %*d %8d %8d %5.0f%%\n", 1053 "Total", hlen, avail / div, used / div, nfree / div, 1054 (double)used / (double)avail * 100.0); 1055 } 1056} 1057 1058void 1059usage(void) 1060{ 1061 (void)fprintf(stderr, 1062 "usage: pstat [-fknsTtv] [-M core] [-N system]\n"); 1063 exit(1); 1064} 1065