pstat.c revision 1.55
1/* $OpenBSD: pstat.c,v 1.55 2005/12/17 13:56:02 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 1.55 2005/12/17 13:56:02 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 struct ufs1_dinode di1; 360 char flagbuf[16], *flags = flagbuf; 361 char *name; 362 mode_t type; 363 364 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 365 KGETRET(inode.i_din1, &di1, sizeof(struct ufs1_dinode), 366 "vnode's dinode"); 367 368 inode.i_din1 = &di1; 369 flag = ip->i_flag; 370#if 0 371 if (flag & IN_LOCKED) 372 *flags++ = 'L'; 373 if (flag & IN_WANTED) 374 *flags++ = 'W'; 375 if (flag & IN_LWAIT) 376 *flags++ = 'Z'; 377#endif 378 if (flag & IN_ACCESS) 379 *flags++ = 'A'; 380 if (flag & IN_CHANGE) 381 *flags++ = 'C'; 382 if (flag & IN_UPDATE) 383 *flags++ = 'U'; 384 if (flag & IN_MODIFIED) 385 *flags++ = 'M'; 386 if (flag & IN_RENAME) 387 *flags++ = 'R'; 388 if (flag & IN_SHLOCK) 389 *flags++ = 'S'; 390 if (flag & IN_EXLOCK) 391 *flags++ = 'E'; 392 if (flag == 0) 393 *flags++ = '-'; 394 *flags = '\0'; 395 396 (void)printf(" %6d %5s", ip->i_number, flagbuf); 397 type = ip->i_ffs_mode & S_IFMT; 398 if (S_ISCHR(ip->i_ffs_mode) || S_ISBLK(ip->i_ffs_mode)) 399 if (usenumflag || 400 ((name = devname(ip->i_ffs_rdev, type)) == NULL)) 401 (void)printf(" %2d,%-2d", 402 major(ip->i_ffs_rdev), minor(ip->i_ffs_rdev)); 403 else 404 (void)printf(" %7s", name); 405 else 406 (void)printf(" %7qd", ip->i_ffs_size); 407 return (0); 408} 409 410void 411ext2fs_header(void) 412{ 413 (void)printf(" FILEID IFLAG SZ"); 414} 415 416int 417ext2fs_print(struct vnode *vp) 418{ 419 int flag; 420 struct inode inode, *ip = &inode; 421 struct ext2fs_dinode di; 422 char flagbuf[16], *flags = flagbuf; 423 424 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 425 KGETRET(inode.i_e2din, &di, sizeof(struct ext2fs_dinode), 426 "vnode's dinode"); 427 428 inode.i_e2din = &di; 429 flag = ip->i_flag; 430 431#if 0 432 if (flag & IN_LOCKED) 433 *flags++ = 'L'; 434 if (flag & IN_WANTED) 435 *flags++ = 'W'; 436 if (flag & IN_LWAIT) 437 *flags++ = 'Z'; 438#endif 439 if (flag & IN_ACCESS) 440 *flags++ = 'A'; 441 if (flag & IN_CHANGE) 442 *flags++ = 'C'; 443 if (flag & IN_UPDATE) 444 *flags++ = 'U'; 445 if (flag & IN_MODIFIED) 446 *flags++ = 'M'; 447 if (flag & IN_RENAME) 448 *flags++ = 'R'; 449 if (flag & IN_SHLOCK) 450 *flags++ = 'S'; 451 if (flag & IN_EXLOCK) 452 *flags++ = 'E'; 453 if (flag == 0) 454 *flags++ = '-'; 455 *flags = '\0'; 456 457 (void)printf(" %6d %5s %2d", ip->i_number, flagbuf, ip->i_e2fs_size); 458 return (0); 459} 460 461void 462nfs_header(void) 463{ 464 (void)printf(" FILEID NFLAG RDEV|SZ"); 465} 466 467int 468nfs_print(struct vnode *vp) 469{ 470 struct nfsnode nfsnode, *np = &nfsnode; 471 char flagbuf[16], *flags = flagbuf; 472 int flag; 473 char *name; 474 mode_t type; 475 476 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 477 flag = np->n_flag; 478 if (flag & NFLUSHWANT) 479 *flags++ = 'W'; 480 if (flag & NFLUSHINPROG) 481 *flags++ = 'P'; 482 if (flag & NMODIFIED) 483 *flags++ = 'M'; 484 if (flag & NWRITEERR) 485 *flags++ = 'E'; 486 if (flag & NACC) 487 *flags++ = 'A'; 488 if (flag & NUPD) 489 *flags++ = 'U'; 490 if (flag & NCHG) 491 *flags++ = 'C'; 492 if (flag == 0) 493 *flags++ = '-'; 494 *flags = '\0'; 495 496 (void)printf(" %6ld %5s", np->n_vattr.va_fileid, flagbuf); 497 type = np->n_vattr.va_mode & S_IFMT; 498 if (S_ISCHR(np->n_vattr.va_mode) || S_ISBLK(np->n_vattr.va_mode)) 499 if (usenumflag || 500 ((name = devname(np->n_vattr.va_rdev, type)) == NULL)) 501 (void)printf(" %2d,%-2d", major(np->n_vattr.va_rdev), 502 minor(np->n_vattr.va_rdev)); 503 else 504 (void)printf(" %7s", name); 505 else 506 (void)printf(" %7qd", np->n_size); 507 return (0); 508} 509 510/* 511 * Given a pointer to a mount structure in kernel space, 512 * read it in and return a usable pointer to it. 513 */ 514struct mount * 515getmnt(struct mount *maddr) 516{ 517 static struct mtab { 518 struct mtab *next; 519 struct mount *maddr; 520 struct mount mount; 521 } *mhead = NULL; 522 struct mtab *mt; 523 524 for (mt = mhead; mt != NULL; mt = mt->next) 525 if (maddr == mt->maddr) 526 return (&mt->mount); 527 if ((mt = malloc(sizeof(struct mtab))) == NULL) 528 err(1, "malloc: mount table"); 529 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 530 mt->maddr = maddr; 531 mt->next = mhead; 532 mhead = mt; 533 return (&mt->mount); 534} 535 536void 537mount_print(struct mount *mp) 538{ 539 int flags; 540 541 (void)printf("*** MOUNT "); 542 (void)printf("%.*s %s on %s", MFSNAMELEN, 543 mp->mnt_stat.f_fstypename, mp->mnt_stat.f_mntfromname, 544 mp->mnt_stat.f_mntonname); 545 if ((flags = mp->mnt_flag)) { 546 char *comma = "("; 547 548 putchar(' '); 549 /* user visible flags */ 550 if (flags & MNT_RDONLY) { 551 (void)printf("%srdonly", comma); 552 flags &= ~MNT_RDONLY; 553 comma = ","; 554 } 555 if (flags & MNT_SYNCHRONOUS) { 556 (void)printf("%ssynchronous", comma); 557 flags &= ~MNT_SYNCHRONOUS; 558 comma = ","; 559 } 560 if (flags & MNT_NOEXEC) { 561 (void)printf("%snoexec", comma); 562 flags &= ~MNT_NOEXEC; 563 comma = ","; 564 } 565 if (flags & MNT_NOSUID) { 566 (void)printf("%snosuid", comma); 567 flags &= ~MNT_NOSUID; 568 comma = ","; 569 } 570 if (flags & MNT_NODEV) { 571 (void)printf("%snodev", comma); 572 flags &= ~MNT_NODEV; 573 comma = ","; 574 } 575 if (flags & MNT_ASYNC) { 576 (void)printf("%sasync", comma); 577 flags &= ~MNT_ASYNC; 578 comma = ","; 579 } 580 if (flags & MNT_EXRDONLY) { 581 (void)printf("%sexrdonly", comma); 582 flags &= ~MNT_EXRDONLY; 583 comma = ","; 584 } 585 if (flags & MNT_EXPORTED) { 586 (void)printf("%sexport", comma); 587 flags &= ~MNT_EXPORTED; 588 comma = ","; 589 } 590 if (flags & MNT_DEFEXPORTED) { 591 (void)printf("%sdefdexported", comma); 592 flags &= ~MNT_DEFEXPORTED; 593 comma = ","; 594 } 595 if (flags & MNT_EXPORTANON) { 596 (void)printf("%sexportanon", comma); 597 flags &= ~MNT_EXPORTANON; 598 comma = ","; 599 } 600 if (flags & MNT_EXKERB) { 601 (void)printf("%sexkerb", comma); 602 flags &= ~MNT_EXKERB; 603 comma = ","; 604 } 605 if (flags & MNT_LOCAL) { 606 (void)printf("%slocal", comma); 607 flags &= ~MNT_LOCAL; 608 comma = ","; 609 } 610 if (flags & MNT_QUOTA) { 611 (void)printf("%squota", comma); 612 flags &= ~MNT_QUOTA; 613 comma = ","; 614 } 615 if (flags & MNT_ROOTFS) { 616 (void)printf("%srootfs", comma); 617 flags &= ~MNT_ROOTFS; 618 comma = ","; 619 } 620 if (flags & MNT_NOATIME) { 621 (void)printf("%snoatime", comma); 622 flags &= ~MNT_NOATIME; 623 comma = ","; 624 } 625 /* filesystem control flags */ 626 if (flags & MNT_UPDATE) { 627 (void)printf("%supdate", comma); 628 flags &= ~MNT_UPDATE; 629 comma = ","; 630 } 631 if (flags & MNT_DELEXPORT) { 632 (void)printf("%sdelexport", comma); 633 flags &= ~MNT_DELEXPORT; 634 comma = ","; 635 } 636 if (flags & MNT_RELOAD) { 637 (void)printf("%sreload", comma); 638 flags &= ~MNT_RELOAD; 639 comma = ","; 640 } 641 if (flags & MNT_FORCE) { 642 (void)printf("%sforce", comma); 643 flags &= ~MNT_FORCE; 644 comma = ","; 645 } 646 if (flags & MNT_WANTRDWR) { 647 (void)printf("%swantrdwr", comma); 648 flags &= ~MNT_WANTRDWR; 649 comma = ","; 650 } 651 if (flags & MNT_SOFTDEP) { 652 (void)printf("%ssoftdep", comma); 653 flags &= ~MNT_SOFTDEP; 654 comma = ","; 655 } 656 if (flags) 657 (void)printf("%sunknown_flags:%x", comma, flags); 658 (void)printf(")"); 659 } 660 (void)printf("\n"); 661} 662 663struct e_vnode * 664loadvnodes(int *avnodes) 665{ 666 int mib[2]; 667 size_t copysize; 668 struct e_vnode *vnodebase; 669 670 if (memf != NULL) { 671 /* 672 * do it by hand 673 */ 674 return (kinfo_vnodes(avnodes)); 675 } 676 mib[0] = CTL_KERN; 677 mib[1] = KERN_VNODE; 678 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 679 err(1, "sysctl: KERN_VNODE"); 680 if ((vnodebase = malloc(copysize)) == NULL) 681 err(1, "malloc: vnode table"); 682 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 683 err(1, "sysctl: KERN_VNODE"); 684 if (copysize % sizeof(struct e_vnode)) 685 errx(1, "vnode size mismatch"); 686 *avnodes = copysize / sizeof(struct e_vnode); 687 688 return (vnodebase); 689} 690 691/* 692 * simulate what a running kernel does in in kinfo_vnode 693 */ 694struct e_vnode * 695kinfo_vnodes(int *avnodes) 696{ 697 struct mntlist mountlist; 698 struct mount *mp, mount; 699 struct vnode *vp, vnode; 700 char *vbuf, *evbuf, *bp; 701 int mib[2], numvnodes; 702 size_t num; 703 704 if (kd == 0) { 705 mib[0] = CTL_KERN; 706 mib[1] = KERN_NUMVNODES; 707 num = sizeof(numvnodes); 708 if (sysctl(mib, 2, &numvnodes, &num, NULL, 0) < 0) 709 err(1, "sysctl(KERN_NUMVNODES) failed"); 710 } else 711 KGET(V_NUMV, numvnodes); 712 if ((vbuf = malloc((numvnodes + 20) * 713 (sizeof(struct vnode *) + sizeof(struct vnode)))) == NULL) 714 err(1, "malloc: vnode buffer"); 715 bp = vbuf; 716 evbuf = vbuf + (numvnodes + 20) * 717 (sizeof(struct vnode *) + sizeof(struct vnode)); 718 KGET(V_MOUNTLIST, mountlist); 719 for (num = 0, mp = CIRCLEQ_FIRST(&mountlist); ; 720 mp = CIRCLEQ_NEXT(&mount, mnt_list)) { 721 KGET2(mp, &mount, sizeof(mount), "mount entry"); 722 for (vp = LIST_FIRST(&mount.mnt_vnodelist); 723 vp != NULL; vp = LIST_NEXT(&vnode, v_mntvnodes)) { 724 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 725 if ((bp + sizeof(struct vnode *) + 726 sizeof(struct vnode)) > evbuf) 727 /* XXX - should realloc */ 728 errx(1, "no more room for vnodes"); 729 memmove(bp, &vp, sizeof(struct vnode *)); 730 bp += sizeof(struct vnode *); 731 memmove(bp, &vnode, sizeof(struct vnode)); 732 bp += sizeof(struct vnode); 733 num++; 734 } 735 if (mp == CIRCLEQ_LAST(&mountlist)) 736 break; 737 } 738 *avnodes = num; 739 return ((struct e_vnode *)vbuf); 740} 741 742const char hdr[] = 743" LINE RAW CAN OUT HWT LWT COL STATE SESS PGID DISC\n"; 744 745void 746tty2itty(struct tty *tp, struct itty *itp) 747{ 748 itp->t_dev = tp->t_dev; 749 itp->t_rawq_c_cc = tp->t_rawq.c_cc; 750 itp->t_canq_c_cc = tp->t_canq.c_cc; 751 itp->t_outq_c_cc = tp->t_outq.c_cc; 752 itp->t_hiwat = tp->t_hiwat; 753 itp->t_lowat = tp->t_lowat; 754 itp->t_column = tp->t_column; 755 itp->t_state = tp->t_state; 756 itp->t_session = tp->t_session; 757 if (tp->t_pgrp != NULL) 758 KGET2(&tp->t_pgrp->pg_id, &itp->t_pgrp_pg_id, sizeof(pid_t), "pgid"); 759 itp->t_line = tp->t_line; 760} 761 762void 763ttymode(void) 764{ 765 struct ttylist_head tty_head; 766 struct tty *tp, tty; 767 int mib[3], ntty, i; 768 struct itty itty, *itp; 769 size_t nlen; 770 771 if (kd == 0) { 772 mib[0] = CTL_KERN; 773 mib[1] = KERN_TTYCOUNT; 774 nlen = sizeof(ntty); 775 if (sysctl(mib, 2, &ntty, &nlen, NULL, 0) < 0) 776 err(1, "sysctl(KERN_TTYCOUNT) failed"); 777 } else 778 KGET(TTY_NTTY, ntty); 779 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 780 (void)printf("%s", hdr); 781 if (kd == 0) { 782 mib[0] = CTL_KERN; 783 mib[1] = KERN_TTY; 784 mib[2] = KERN_TTY_INFO; 785 nlen = ntty * sizeof(struct itty); 786 if ((itp = malloc(nlen)) == NULL) 787 err(1, "malloc"); 788 if (sysctl(mib, 3, itp, &nlen, NULL, 0) < 0) 789 err(1, "sysctl(KERN_TTY_INFO) failed"); 790 for (i = 0; i < ntty; i++) 791 ttyprt(&itp[i]); 792 free(itp); 793 } else { 794 KGET(TTY_TTYLIST, tty_head); 795 for (tp = TAILQ_FIRST(&tty_head); tp; 796 tp = TAILQ_NEXT(&tty, tty_link)) { 797 KGET2(tp, &tty, sizeof tty, "tty struct"); 798 tty2itty(&tty, &itty); 799 ttyprt(&itty); 800 } 801 } 802} 803 804struct { 805 int flag; 806 char val; 807} ttystates[] = { 808 { TS_WOPEN, 'W'}, 809 { TS_ISOPEN, 'O'}, 810 { TS_CARR_ON, 'C'}, 811 { TS_TIMEOUT, 'T'}, 812 { TS_FLUSH, 'F'}, 813 { TS_BUSY, 'B'}, 814 { TS_ASLEEP, 'A'}, 815 { TS_XCLUDE, 'X'}, 816 { TS_TTSTOP, 'S'}, 817 { TS_TBLOCK, 'K'}, 818 { TS_ASYNC, 'Y'}, 819 { TS_BKSL, 'D'}, 820 { TS_ERASE, 'E'}, 821 { TS_LNCH, 'L'}, 822 { TS_TYPEN, 'P'}, 823 { TS_CNTTB, 'N'}, 824 { 0, '\0'}, 825}; 826 827void 828ttyprt(struct itty *tp) 829{ 830 char *name, state[20]; 831 int i, j; 832 833 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) 834 (void)printf("%2d,%-3d ", major(tp->t_dev), minor(tp->t_dev)); 835 else 836 (void)printf("%7s ", name); 837 (void)printf("%3d %4d ", tp->t_rawq_c_cc, tp->t_canq_c_cc); 838 (void)printf("%4d %4d %3d %6d ", tp->t_outq_c_cc, 839 tp->t_hiwat, tp->t_lowat, tp->t_column); 840 for (i = j = 0; ttystates[i].flag; i++) 841 if (tp->t_state&ttystates[i].flag) 842 state[j++] = ttystates[i].val; 843 if (j == 0) 844 state[j++] = '-'; 845 state[j] = '\0'; 846 (void)printf("%-6s %8lx", state, (u_long)tp->t_session & ~KERNBASE); 847 (void)printf("%6d ", tp->t_pgrp_pg_id); 848 switch (tp->t_line) { 849 case TTYDISC: 850 (void)printf("term\n"); 851 break; 852 case TABLDISC: 853 (void)printf("tab\n"); 854 break; 855 case SLIPDISC: 856 (void)printf("slip\n"); 857 break; 858 case PPPDISC: 859 (void)printf("ppp\n"); 860 break; 861 case STRIPDISC: 862 (void)printf("strip\n"); 863 break; 864 default: 865 (void)printf("%d\n", tp->t_line); 866 break; 867 } 868} 869 870void 871filemode(void) 872{ 873 struct file fp, *ffp, *addr; 874 char *buf, flagbuf[16], *fbp; 875 static char *dtypes[] = { "???", "inode", "socket" }; 876 int mib[2], maxfile, nfile; 877 size_t len; 878 879 if (kd == 0) { 880 mib[0] = CTL_KERN; 881 mib[1] = KERN_MAXFILES; 882 len = sizeof(maxfile); 883 if (sysctl(mib, 2, &maxfile, &len, NULL, 0) < 0) 884 err(1, "sysctl(KERN_MAXFILES) failed"); 885 if (totalflag) { 886 mib[0] = CTL_KERN; 887 mib[1] = KERN_NFILES; 888 len = sizeof(nfile); 889 if (sysctl(mib, 2, &nfile, &len, NULL, 0) < 0) 890 err(1, "sysctl(KERN_NFILES) failed"); 891 } 892 } else { 893 KGET(FNL_MAXFILE, maxfile); 894 if (totalflag) { 895 KGET(FNL_NFILE, nfile); 896 (void)printf("%3d/%3d files\n", nfile, maxfile); 897 return; 898 } 899 } 900 901 if (getfiles(&buf, &len) == -1) 902 return; 903 /* 904 * Getfiles returns in malloc'd memory a pointer to the first file 905 * structure, and then an array of file structs (whose addresses are 906 * derivable from the previous entry). 907 */ 908 addr = LIST_FIRST((struct filelist *)buf); 909 ffp = (struct file *)(buf + sizeof(struct filelist)); 910 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 911 912 (void)printf("%d/%d open files\n", nfile, maxfile); 913 914 (void)printf("%*s TYPE FLG CNT MSG %*s OFFSET\n", 915 8, "LOC", 8, "DATA"); 916 for (; (char *)ffp < buf + len; addr = LIST_NEXT(ffp, f_list), ffp++) { 917 memmove(&fp, ffp, sizeof fp); 918 if ((unsigned)fp.f_type > DTYPE_SOCKET) 919 continue; 920 (void)printf("%lx ", (long)addr); 921 (void)printf("%-8.8s", dtypes[fp.f_type]); 922 fbp = flagbuf; 923 if (fp.f_flag & FREAD) 924 *fbp++ = 'R'; 925 if (fp.f_flag & FWRITE) 926 *fbp++ = 'W'; 927 if (fp.f_flag & FAPPEND) 928 *fbp++ = 'A'; 929 if (fp.f_flag & FHASLOCK) 930 *fbp++ = 'L'; 931 if (fp.f_flag & FASYNC) 932 *fbp++ = 'I'; 933 *fbp = '\0'; 934 (void)printf("%6s %3ld", flagbuf, fp.f_count); 935 (void)printf(" %3ld", fp.f_msgcount); 936 (void)printf(" %8.1lx", (long)fp.f_data); 937 938 if (fp.f_offset < 0) 939 (void)printf(" %llx\n", (long long)fp.f_offset); 940 else 941 (void)printf(" %lld\n", (long long)fp.f_offset); 942 } 943 free(buf); 944} 945 946int 947getfiles(char **abuf, size_t *alen) 948{ 949 size_t len; 950 int mib[2]; 951 char *buf; 952 953 /* 954 * XXX 955 * Add emulation of KINFO_FILE here. 956 */ 957 if (memf != NULL) 958 errx(1, "files on dead kernel, not implemented"); 959 960 mib[0] = CTL_KERN; 961 mib[1] = KERN_FILE; 962 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 963 warn("sysctl: KERN_FILE"); 964 return (-1); 965 } 966 if ((buf = malloc(len)) == NULL) 967 err(1, "malloc: KERN_FILE"); 968 if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) { 969 warn("sysctl: KERN_FILE"); 970 free(buf); 971 return (-1); 972 } 973 *abuf = buf; 974 *alen = len; 975 return (0); 976} 977 978/* 979 * swapmode is based on a program called swapinfo written 980 * by Kevin Lahey <kml@rokkaku.atl.ga.us>. 981 */ 982void 983swapmode(void) 984{ 985 char *header; 986 int hlen = 10, nswap; 987 int div, i, avail, nfree, npfree, used; 988 long blocksize; 989 struct swapent *swdev; 990 991 if (kflag) { 992 header = "1K-blocks"; 993 blocksize = 1024; 994 hlen = strlen(header); 995 } else 996 header = getbsize(&hlen, &blocksize); 997 998 nswap = swapctl(SWAP_NSWAP, 0, 0); 999 if (nswap == 0) { 1000 if (!totalflag) 1001 (void)printf("%-11s %*s %8s %8s %8s %s\n", 1002 "Device", hlen, header, 1003 "Used", "Avail", "Capacity", "Priority"); 1004 (void)printf("%-11s %*d %8d %8d %5.0f%%\n", 1005 "Total", hlen, 0, 0, 0, 0.0); 1006 return; 1007 } 1008 if ((swdev = malloc(nswap * sizeof(*swdev))) == NULL) 1009 err(1, "malloc"); 1010 if (swapctl(SWAP_STATS, swdev, nswap) == -1) 1011 err(1, "swapctl"); 1012 1013 if (!totalflag) 1014 (void)printf("%-11s %*s %8s %8s %8s %s\n", 1015 "Device", hlen, header, 1016 "Used", "Avail", "Capacity", "Priority"); 1017 1018 /* Run through swap list, doing the funky monkey. */ 1019 div = blocksize / DEV_BSIZE; 1020 avail = nfree = npfree = 0; 1021 for (i = 0; i < nswap; i++) { 1022 int xsize, xfree; 1023 1024 if (!(swdev[i].se_flags & SWF_ENABLE)) 1025 continue; 1026 1027 if (!totalflag) { 1028 if (usenumflag) 1029 (void)printf("%2d,%-2d %*d ", 1030 major(swdev[i].se_dev), 1031 minor(swdev[i].se_dev), 1032 hlen, swdev[i].se_nblks / div); 1033 else 1034 (void)printf("%-11s %*d ", swdev[i].se_path, 1035 hlen, swdev[i].se_nblks / div); 1036 } 1037 1038 xsize = swdev[i].se_nblks; 1039 used = swdev[i].se_inuse; 1040 xfree = xsize - used; 1041 nfree += (xsize - used); 1042 npfree++; 1043 avail += xsize; 1044 if (totalflag) 1045 continue; 1046 (void)printf("%8d %8d %5.0f%% %d\n", 1047 used / div, xfree / div, 1048 (double)used / (double)xsize * 100.0, 1049 swdev[i].se_priority); 1050 } 1051 free(swdev); 1052 1053 /* 1054 * If only one partition has been set up via swapon(8), we don't 1055 * need to bother with totals. 1056 */ 1057 used = avail - nfree; 1058 if (totalflag) { 1059 (void)printf("%dM/%dM swap space\n", 1060 used / (1048576 / DEV_BSIZE), 1061 avail / (1048576 / DEV_BSIZE)); 1062 return; 1063 } 1064 if (npfree > 1) { 1065 (void)printf("%-11s %*d %8d %8d %5.0f%%\n", 1066 "Total", hlen, avail / div, used / div, nfree / div, 1067 (double)used / (double)avail * 100.0); 1068 } 1069} 1070 1071void 1072usage(void) 1073{ 1074 (void)fprintf(stderr, 1075 "usage: pstat [-fknsTtv] [-M core] [-N system]\n"); 1076 exit(1); 1077} 1078