pstat.c revision 1.67
1/* $OpenBSD: pstat.c,v 1.67 2007/11/26 18:32:33 tedu 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 1.67 2007/11/26 18:32:33 tedu 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 vnodenl[] = { 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 { NULL } 96}; 97 98struct nlist *globalnl; 99 100int usenumflag; 101int totalflag; 102int kflag; 103char *nlistf = NULL; 104char *memf = NULL; 105kvm_t *kd = NULL; 106 107#define SVAR(var) __STRING(var) /* to force expansion */ 108#define KGET(idx, var) \ 109 KGET1(idx, &var, sizeof(var), SVAR(var)) 110#define KGET1(idx, p, s, msg) \ 111 KGET2(globalnl[idx].n_value, p, s, msg) 112#define KGET2(addr, p, s, msg) \ 113 if (kvm_read(kd, (u_long)(addr), p, s) != s) \ 114 warnx("cannot read %s: %s", msg, kvm_geterr(kd)) 115#define KGETRET(addr, p, s, msg) \ 116 if (kvm_read(kd, (u_long)(addr), p, s) != s) { \ 117 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 118 return (0); \ 119 } 120 121void filemode(void); 122int getfiles(char **, size_t *); 123struct mount * 124 getmnt(struct mount *); 125struct e_vnode * 126 kinfo_vnodes(int *); 127struct e_vnode * 128 loadvnodes(int *); 129void mount_print(struct mount *); 130void nfs_header(void); 131int nfs_print(struct vnode *); 132void swapmode(void); 133void ttymode(void); 134void ttyprt(struct itty *); 135void ufs_header(void); 136int ufs_print(struct vnode *); 137void ext2fs_header(void); 138int ext2fs_print(struct vnode *); 139void usage(void); 140void vnode_header(void); 141void vnode_print(struct vnode *, struct vnode *); 142void vnodemode(void); 143 144int 145main(int argc, char *argv[]) 146{ 147 int fileflag = 0, swapflag = 0, ttyflag = 0, vnodeflag = 0; 148 char buf[_POSIX2_LINE_MAX]; 149 int ch; 150 extern char *optarg; 151 extern int optind; 152 gid_t gid; 153 154 while ((ch = getopt(argc, argv, "TM:N:fiknstv")) != -1) 155 switch (ch) { 156 case 'f': 157 fileflag = 1; 158 break; 159 case 'M': 160 memf = optarg; 161 break; 162 case 'N': 163 nlistf = optarg; 164 break; 165 case 'n': 166 usenumflag = 1; 167 break; 168 case 's': 169 swapflag = 1; 170 break; 171 case 'T': 172 totalflag = 1; 173 break; 174 case 't': 175 ttyflag = 1; 176 break; 177 case 'k': 178 kflag = 1; 179 break; 180 case 'v': 181 case 'i': /* Backward compatibility. */ 182 vnodeflag = 1; 183 break; 184 default: 185 usage(); 186 } 187 argc -= optind; 188 argv += optind; 189 190 /* 191 * Discard setgid privileges if not the running kernel so that bad 192 * guys can't print interesting stuff from kernel memory. 193 */ 194 gid = getgid(); 195 if (nlistf != NULL || memf != NULL) 196 if (setresgid(gid, gid, gid) == -1) 197 err(1, "setresgid"); 198 199 if (vnodeflag) 200 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0) 201 errx(1, "kvm_openfiles: %s", buf); 202 203 if (nlistf == NULL && memf == NULL) 204 if (setresgid(gid, gid, gid) == -1) 205 err(1, "setresgid"); 206 207 if (vnodeflag) 208 if (kvm_nlist(kd, vnodenl) == -1) 209 errx(1, "kvm_nlist: %s", kvm_geterr(kd)); 210 211 if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag)) 212 usage(); 213 if (fileflag || totalflag) 214 filemode(); 215 if (vnodeflag || totalflag) 216 vnodemode(); 217 if (ttyflag) 218 ttymode(); 219 if (swapflag || totalflag) 220 swapmode(); 221 exit(0); 222} 223 224void 225vnodemode(void) 226{ 227 struct e_vnode *e_vnodebase, *endvnode, *evp; 228 struct vnode *vp; 229 struct mount *maddr, *mp = NULL; 230 int numvnodes; 231 232 globalnl = vnodenl; 233 234 e_vnodebase = loadvnodes(&numvnodes); 235 if (totalflag) { 236 (void)printf("%7d vnodes\n", numvnodes); 237 return; 238 } 239 endvnode = e_vnodebase + numvnodes; 240 (void)printf("%d active vnodes\n", numvnodes); 241 242 maddr = NULL; 243 for (evp = e_vnodebase; evp < endvnode; evp++) { 244 vp = &evp->vnode; 245 if (vp->v_mount != maddr) { 246 /* 247 * New filesystem 248 */ 249 if ((mp = getmnt(vp->v_mount)) == NULL) 250 continue; 251 maddr = vp->v_mount; 252 mount_print(mp); 253 vnode_header(); 254 if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_FFS, MFSNAMELEN) || 255 !strncmp(mp->mnt_stat.f_fstypename, MOUNT_MFS, MFSNAMELEN)) { 256 ufs_header(); 257 } else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_NFS, 258 MFSNAMELEN)) { 259 nfs_header(); 260 } else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_EXT2FS, 261 MFSNAMELEN)) { 262 ext2fs_header(); 263 } 264 (void)printf("\n"); 265 } 266 vnode_print(evp->vptr, vp); 267 268 /* Syncer vnodes have no associated fs-specific data */ 269 if (vp->v_data == NULL) { 270 printf(" %6c %5c %7c\n", '-', '-', '-'); 271 continue; 272 } 273 274 if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_FFS, MFSNAMELEN) || 275 !strncmp(mp->mnt_stat.f_fstypename, MOUNT_MFS, MFSNAMELEN)) { 276 ufs_print(vp); 277 } else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_NFS, MFSNAMELEN)) { 278 nfs_print(vp); 279 } else if (!strncmp(mp->mnt_stat.f_fstypename, MOUNT_EXT2FS, 280 MFSNAMELEN)) { 281 ext2fs_print(vp); 282 } 283 (void)printf("\n"); 284 } 285 free(e_vnodebase); 286} 287 288void 289vnode_header(void) 290{ 291 (void)printf("%*s TYP VFLAG USE HOLD", 2 * sizeof(long), "ADDR"); 292} 293 294void 295vnode_print(struct vnode *avnode, struct vnode *vp) 296{ 297 char *type, flags[16]; 298 char *fp = flags; 299 int flag; 300 301 /* 302 * set type 303 */ 304 switch (vp->v_type) { 305 case VNON: 306 type = "non"; break; 307 case VREG: 308 type = "reg"; break; 309 case VDIR: 310 type = "dir"; break; 311 case VBLK: 312 type = "blk"; break; 313 case VCHR: 314 type = "chr"; break; 315 case VLNK: 316 type = "lnk"; break; 317 case VSOCK: 318 type = "soc"; break; 319 case VFIFO: 320 type = "fif"; break; 321 case VBAD: 322 type = "bad"; break; 323 default: 324 type = "unk"; break; 325 } 326 /* 327 * gather flags 328 */ 329 flag = vp->v_flag; 330 if (flag & VROOT) 331 *fp++ = 'R'; 332 if (flag & VTEXT) 333 *fp++ = 'T'; 334 if (flag & VSYSTEM) 335 *fp++ = 'S'; 336 if (flag & VISTTY) 337 *fp++ = 'I'; 338 if (flag & VXLOCK) 339 *fp++ = 'L'; 340 if (flag & VXWANT) 341 *fp++ = 'W'; 342 if (vp->v_bioflag & VBIOWAIT) 343 *fp++ = 'B'; 344 if (flag & VALIASED) 345 *fp++ = 'A'; 346 if (vp->v_bioflag & VBIOONFREELIST) 347 *fp++ = 'F'; 348 if (flag & VLOCKSWORK) 349 *fp++ = 'l'; 350 if (vp->v_bioflag & VBIOONSYNCLIST) 351 *fp++ = 's'; 352 if (flag == 0) 353 *fp++ = '-'; 354 *fp = '\0'; 355 (void)printf("%0*lx %s %5s %4d %4u", 2 * sizeof(long), 356 (long)avnode, type, flags, vp->v_usecount, vp->v_holdcnt); 357} 358 359void 360ufs_header(void) 361{ 362 (void)printf(" FILEID IFLAG RDEV|SZ"); 363} 364 365int 366ufs_print(struct vnode *vp) 367{ 368 int flag; 369 struct inode inode, *ip = &inode; 370 struct ufs1_dinode di1; 371 char flagbuf[16], *flags = flagbuf; 372 char *name; 373 mode_t type; 374 375 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 376 KGETRET(inode.i_din1, &di1, sizeof(struct ufs1_dinode), 377 "vnode's dinode"); 378 379 inode.i_din1 = &di1; 380 flag = ip->i_flag; 381#if 0 382 if (flag & IN_LOCKED) 383 *flags++ = 'L'; 384 if (flag & IN_WANTED) 385 *flags++ = 'W'; 386 if (flag & IN_LWAIT) 387 *flags++ = 'Z'; 388#endif 389 if (flag & IN_ACCESS) 390 *flags++ = 'A'; 391 if (flag & IN_CHANGE) 392 *flags++ = 'C'; 393 if (flag & IN_UPDATE) 394 *flags++ = 'U'; 395 if (flag & IN_MODIFIED) 396 *flags++ = 'M'; 397 if (flag & IN_RENAME) 398 *flags++ = 'R'; 399 if (flag & IN_SHLOCK) 400 *flags++ = 'S'; 401 if (flag & IN_EXLOCK) 402 *flags++ = 'E'; 403 if (flag == 0) 404 *flags++ = '-'; 405 *flags = '\0'; 406 407 (void)printf(" %6d %5s", ip->i_number, flagbuf); 408 type = ip->i_ffs1_mode & S_IFMT; 409 if (S_ISCHR(ip->i_ffs1_mode) || S_ISBLK(ip->i_ffs1_mode)) 410 if (usenumflag || 411 ((name = devname(ip->i_ffs1_rdev, type)) == NULL)) 412 (void)printf(" %2d,%-2d", 413 major(ip->i_ffs1_rdev), minor(ip->i_ffs1_rdev)); 414 else 415 (void)printf(" %7s", name); 416 else 417 (void)printf(" %7qd", ip->i_ffs1_size); 418 return (0); 419} 420 421void 422ext2fs_header(void) 423{ 424 (void)printf(" FILEID IFLAG SZ"); 425} 426 427int 428ext2fs_print(struct vnode *vp) 429{ 430 int flag; 431 struct inode inode, *ip = &inode; 432 struct ext2fs_dinode di; 433 char flagbuf[16], *flags = flagbuf; 434 435 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 436 KGETRET(inode.i_e2din, &di, sizeof(struct ext2fs_dinode), 437 "vnode's dinode"); 438 439 inode.i_e2din = &di; 440 flag = ip->i_flag; 441 442#if 0 443 if (flag & IN_LOCKED) 444 *flags++ = 'L'; 445 if (flag & IN_WANTED) 446 *flags++ = 'W'; 447 if (flag & IN_LWAIT) 448 *flags++ = 'Z'; 449#endif 450 if (flag & IN_ACCESS) 451 *flags++ = 'A'; 452 if (flag & IN_CHANGE) 453 *flags++ = 'C'; 454 if (flag & IN_UPDATE) 455 *flags++ = 'U'; 456 if (flag & IN_MODIFIED) 457 *flags++ = 'M'; 458 if (flag & IN_RENAME) 459 *flags++ = 'R'; 460 if (flag & IN_SHLOCK) 461 *flags++ = 'S'; 462 if (flag & IN_EXLOCK) 463 *flags++ = 'E'; 464 if (flag == 0) 465 *flags++ = '-'; 466 *flags = '\0'; 467 468 (void)printf(" %6d %5s %2d", ip->i_number, flagbuf, ip->i_e2fs_size); 469 return (0); 470} 471 472void 473nfs_header(void) 474{ 475 (void)printf(" FILEID NFLAG RDEV|SZ"); 476} 477 478int 479nfs_print(struct vnode *vp) 480{ 481 struct nfsnode nfsnode, *np = &nfsnode; 482 char flagbuf[16], *flags = flagbuf; 483 int flag; 484 char *name; 485 mode_t type; 486 487 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 488 flag = np->n_flag; 489 if (flag & NFLUSHWANT) 490 *flags++ = 'W'; 491 if (flag & NFLUSHINPROG) 492 *flags++ = 'P'; 493 if (flag & NMODIFIED) 494 *flags++ = 'M'; 495 if (flag & NWRITEERR) 496 *flags++ = 'E'; 497 if (flag & NACC) 498 *flags++ = 'A'; 499 if (flag & NUPD) 500 *flags++ = 'U'; 501 if (flag & NCHG) 502 *flags++ = 'C'; 503 if (flag == 0) 504 *flags++ = '-'; 505 *flags = '\0'; 506 507 (void)printf(" %6ld %5s", np->n_vattr.va_fileid, flagbuf); 508 type = np->n_vattr.va_mode & S_IFMT; 509 if (S_ISCHR(np->n_vattr.va_mode) || S_ISBLK(np->n_vattr.va_mode)) 510 if (usenumflag || 511 ((name = devname(np->n_vattr.va_rdev, type)) == NULL)) 512 (void)printf(" %2d,%-2d", major(np->n_vattr.va_rdev), 513 minor(np->n_vattr.va_rdev)); 514 else 515 (void)printf(" %7s", name); 516 else 517 (void)printf(" %7qd", np->n_size); 518 return (0); 519} 520 521/* 522 * Given a pointer to a mount structure in kernel space, 523 * read it in and return a usable pointer to it. 524 */ 525struct mount * 526getmnt(struct mount *maddr) 527{ 528 static struct mtab { 529 struct mtab *next; 530 struct mount *maddr; 531 struct mount mount; 532 } *mhead = NULL; 533 struct mtab *mt; 534 535 for (mt = mhead; mt != NULL; mt = mt->next) 536 if (maddr == mt->maddr) 537 return (&mt->mount); 538 if ((mt = malloc(sizeof(struct mtab))) == NULL) 539 err(1, "malloc: mount table"); 540 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 541 mt->maddr = maddr; 542 mt->next = mhead; 543 mhead = mt; 544 return (&mt->mount); 545} 546 547void 548mount_print(struct mount *mp) 549{ 550 int flags; 551 552 (void)printf("*** MOUNT "); 553 (void)printf("%.*s %s on %s", MFSNAMELEN, 554 mp->mnt_stat.f_fstypename, mp->mnt_stat.f_mntfromname, 555 mp->mnt_stat.f_mntonname); 556 if ((flags = mp->mnt_flag)) { 557 char *comma = "("; 558 559 putchar(' '); 560 /* user visible flags */ 561 if (flags & MNT_RDONLY) { 562 (void)printf("%srdonly", comma); 563 flags &= ~MNT_RDONLY; 564 comma = ","; 565 } 566 if (flags & MNT_SYNCHRONOUS) { 567 (void)printf("%ssynchronous", comma); 568 flags &= ~MNT_SYNCHRONOUS; 569 comma = ","; 570 } 571 if (flags & MNT_NOEXEC) { 572 (void)printf("%snoexec", comma); 573 flags &= ~MNT_NOEXEC; 574 comma = ","; 575 } 576 if (flags & MNT_NOSUID) { 577 (void)printf("%snosuid", comma); 578 flags &= ~MNT_NOSUID; 579 comma = ","; 580 } 581 if (flags & MNT_NODEV) { 582 (void)printf("%snodev", comma); 583 flags &= ~MNT_NODEV; 584 comma = ","; 585 } 586 if (flags & MNT_ASYNC) { 587 (void)printf("%sasync", comma); 588 flags &= ~MNT_ASYNC; 589 comma = ","; 590 } 591 if (flags & MNT_EXRDONLY) { 592 (void)printf("%sexrdonly", comma); 593 flags &= ~MNT_EXRDONLY; 594 comma = ","; 595 } 596 if (flags & MNT_EXPORTED) { 597 (void)printf("%sexport", comma); 598 flags &= ~MNT_EXPORTED; 599 comma = ","; 600 } 601 if (flags & MNT_DEFEXPORTED) { 602 (void)printf("%sdefdexported", comma); 603 flags &= ~MNT_DEFEXPORTED; 604 comma = ","; 605 } 606 if (flags & MNT_EXPORTANON) { 607 (void)printf("%sexportanon", comma); 608 flags &= ~MNT_EXPORTANON; 609 comma = ","; 610 } 611 if (flags & MNT_EXKERB) { 612 (void)printf("%sexkerb", comma); 613 flags &= ~MNT_EXKERB; 614 comma = ","; 615 } 616 if (flags & MNT_LOCAL) { 617 (void)printf("%slocal", comma); 618 flags &= ~MNT_LOCAL; 619 comma = ","; 620 } 621 if (flags & MNT_QUOTA) { 622 (void)printf("%squota", comma); 623 flags &= ~MNT_QUOTA; 624 comma = ","; 625 } 626 if (flags & MNT_ROOTFS) { 627 (void)printf("%srootfs", comma); 628 flags &= ~MNT_ROOTFS; 629 comma = ","; 630 } 631 if (flags & MNT_NOATIME) { 632 (void)printf("%snoatime", comma); 633 flags &= ~MNT_NOATIME; 634 comma = ","; 635 } 636 /* filesystem control flags */ 637 if (flags & MNT_UPDATE) { 638 (void)printf("%supdate", comma); 639 flags &= ~MNT_UPDATE; 640 comma = ","; 641 } 642 if (flags & MNT_DELEXPORT) { 643 (void)printf("%sdelexport", comma); 644 flags &= ~MNT_DELEXPORT; 645 comma = ","; 646 } 647 if (flags & MNT_RELOAD) { 648 (void)printf("%sreload", comma); 649 flags &= ~MNT_RELOAD; 650 comma = ","; 651 } 652 if (flags & MNT_FORCE) { 653 (void)printf("%sforce", comma); 654 flags &= ~MNT_FORCE; 655 comma = ","; 656 } 657 if (flags & MNT_WANTRDWR) { 658 (void)printf("%swantrdwr", comma); 659 flags &= ~MNT_WANTRDWR; 660 comma = ","; 661 } 662 if (flags & MNT_SOFTDEP) { 663 (void)printf("%ssoftdep", comma); 664 flags &= ~MNT_SOFTDEP; 665 comma = ","; 666 } 667 if (flags) 668 (void)printf("%sunknown_flags:%x", comma, flags); 669 (void)printf(")"); 670 } 671 (void)printf("\n"); 672} 673 674struct e_vnode * 675loadvnodes(int *avnodes) 676{ 677 int mib[2]; 678 size_t copysize; 679 struct e_vnode *vnodebase; 680 681 if (memf != NULL) { 682 /* 683 * do it by hand 684 */ 685 return (kinfo_vnodes(avnodes)); 686 } 687 mib[0] = CTL_KERN; 688 mib[1] = KERN_VNODE; 689 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 690 err(1, "sysctl: KERN_VNODE"); 691 if ((vnodebase = malloc(copysize)) == NULL) 692 err(1, "malloc: vnode table"); 693 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 694 err(1, "sysctl: KERN_VNODE"); 695 if (copysize % sizeof(struct e_vnode)) 696 errx(1, "vnode size mismatch"); 697 *avnodes = copysize / sizeof(struct e_vnode); 698 699 return (vnodebase); 700} 701 702/* 703 * simulate what a running kernel does in kinfo_vnode 704 */ 705struct e_vnode * 706kinfo_vnodes(int *avnodes) 707{ 708 struct mntlist kvm_mountlist; 709 struct mount *mp, mount; 710 struct vnode *vp, vnode; 711 char *vbuf, *evbuf, *bp; 712 int mib[2], numvnodes; 713 size_t num; 714 715 if (kd == 0) { 716 mib[0] = CTL_KERN; 717 mib[1] = KERN_NUMVNODES; 718 num = sizeof(numvnodes); 719 if (sysctl(mib, 2, &numvnodes, &num, NULL, 0) < 0) 720 err(1, "sysctl(KERN_NUMVNODES) failed"); 721 } else 722 KGET(V_NUMV, numvnodes); 723 if ((vbuf = calloc(numvnodes + 20, 724 sizeof(struct vnode *) + sizeof(struct vnode))) == NULL) 725 err(1, "malloc: vnode buffer"); 726 bp = vbuf; 727 evbuf = vbuf + (numvnodes + 20) * 728 (sizeof(struct vnode *) + sizeof(struct vnode)); 729 KGET(V_MOUNTLIST, kvm_mountlist); 730 for (num = 0, mp = CIRCLEQ_FIRST(&kvm_mountlist); ; 731 mp = CIRCLEQ_NEXT(&mount, mnt_list)) { 732 KGET2(mp, &mount, sizeof(mount), "mount entry"); 733 for (vp = LIST_FIRST(&mount.mnt_vnodelist); 734 vp != NULL; vp = LIST_NEXT(&vnode, v_mntvnodes)) { 735 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 736 if ((bp + sizeof(struct vnode *) + 737 sizeof(struct vnode)) > evbuf) 738 /* XXX - should realloc */ 739 errx(1, "no more room for vnodes"); 740 memmove(bp, &vp, sizeof(struct vnode *)); 741 bp += sizeof(struct vnode *); 742 memmove(bp, &vnode, sizeof(struct vnode)); 743 bp += sizeof(struct vnode); 744 num++; 745 } 746 if (mp == CIRCLEQ_LAST(&kvm_mountlist)) 747 break; 748 } 749 *avnodes = num; 750 return ((struct e_vnode *)vbuf); 751} 752 753const char hdr[] = 754" LINE RAW CAN OUT HWT LWT COL STATE SESS PGID DISC\n"; 755 756void 757tty2itty(struct tty *tp, struct itty *itp) 758{ 759 itp->t_dev = tp->t_dev; 760 itp->t_rawq_c_cc = tp->t_rawq.c_cc; 761 itp->t_canq_c_cc = tp->t_canq.c_cc; 762 itp->t_outq_c_cc = tp->t_outq.c_cc; 763 itp->t_hiwat = tp->t_hiwat; 764 itp->t_lowat = tp->t_lowat; 765 itp->t_column = tp->t_column; 766 itp->t_state = tp->t_state; 767 itp->t_session = tp->t_session; 768 if (tp->t_pgrp != NULL) 769 KGET2(&tp->t_pgrp->pg_id, &itp->t_pgrp_pg_id, sizeof(pid_t), "pgid"); 770 itp->t_line = tp->t_line; 771} 772 773void 774ttymode(void) 775{ 776 struct ttylist_head tty_head; 777 struct tty *tp, tty; 778 int mib[3], ntty, i; 779 struct itty itty, *itp; 780 size_t nlen; 781 782 if (kd == 0) { 783 mib[0] = CTL_KERN; 784 mib[1] = KERN_TTYCOUNT; 785 nlen = sizeof(ntty); 786 if (sysctl(mib, 2, &ntty, &nlen, NULL, 0) < 0) 787 err(1, "sysctl(KERN_TTYCOUNT) failed"); 788 } else 789 KGET(TTY_NTTY, ntty); 790 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 791 (void)printf("%s", hdr); 792 if (kd == 0) { 793 mib[0] = CTL_KERN; 794 mib[1] = KERN_TTY; 795 mib[2] = KERN_TTY_INFO; 796 nlen = ntty * sizeof(struct itty); 797 if ((itp = malloc(nlen)) == NULL) 798 err(1, "malloc"); 799 if (sysctl(mib, 3, itp, &nlen, NULL, 0) < 0) 800 err(1, "sysctl(KERN_TTY_INFO) failed"); 801 for (i = 0; i < ntty; i++) 802 ttyprt(&itp[i]); 803 free(itp); 804 } else { 805 KGET(TTY_TTYLIST, tty_head); 806 for (tp = TAILQ_FIRST(&tty_head); tp; 807 tp = TAILQ_NEXT(&tty, tty_link)) { 808 KGET2(tp, &tty, sizeof tty, "tty struct"); 809 tty2itty(&tty, &itty); 810 ttyprt(&itty); 811 } 812 } 813} 814 815struct { 816 int flag; 817 char val; 818} ttystates[] = { 819 { TS_WOPEN, 'W'}, 820 { TS_ISOPEN, 'O'}, 821 { TS_CARR_ON, 'C'}, 822 { TS_TIMEOUT, 'T'}, 823 { TS_FLUSH, 'F'}, 824 { TS_BUSY, 'B'}, 825 { TS_ASLEEP, 'A'}, 826 { TS_XCLUDE, 'X'}, 827 { TS_TTSTOP, 'S'}, 828 { TS_TBLOCK, 'K'}, 829 { TS_ASYNC, 'Y'}, 830 { TS_BKSL, 'D'}, 831 { TS_ERASE, 'E'}, 832 { TS_LNCH, 'L'}, 833 { TS_TYPEN, 'P'}, 834 { TS_CNTTB, 'N'}, 835 { 0, '\0'}, 836}; 837 838void 839ttyprt(struct itty *tp) 840{ 841 char *name, state[20]; 842 int i, j; 843 844 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) 845 (void)printf("%2d,%-3d ", major(tp->t_dev), minor(tp->t_dev)); 846 else 847 (void)printf("%7s ", name); 848 (void)printf("%3d %4d ", tp->t_rawq_c_cc, tp->t_canq_c_cc); 849 (void)printf("%4d %4d %3d %6d ", tp->t_outq_c_cc, 850 tp->t_hiwat, tp->t_lowat, tp->t_column); 851 for (i = j = 0; ttystates[i].flag; i++) 852 if (tp->t_state&ttystates[i].flag) 853 state[j++] = ttystates[i].val; 854 if (j == 0) 855 state[j++] = '-'; 856 state[j] = '\0'; 857 (void)printf("%-6s %8lx", state, (u_long)tp->t_session & ~KERNBASE); 858 (void)printf("%6d ", tp->t_pgrp_pg_id); 859 switch (tp->t_line) { 860 case TTYDISC: 861 (void)printf("term\n"); 862 break; 863 case TABLDISC: 864 (void)printf("tab\n"); 865 break; 866 case SLIPDISC: 867 (void)printf("slip\n"); 868 break; 869 case PPPDISC: 870 (void)printf("ppp\n"); 871 break; 872 case STRIPDISC: 873 (void)printf("strip\n"); 874 break; 875 case NMEADISC: 876 (void)printf("nmea\n"); 877 break; 878 default: 879 (void)printf("%d\n", tp->t_line); 880 break; 881 } 882} 883 884void 885filemode(void) 886{ 887 struct file fp, *ffp, *addr; 888 char *buf, flagbuf[16], *fbp; 889 static char *dtypes[] = { "???", "inode", "socket" }; 890 int mib[2], maxfile, nfile; 891 size_t len; 892 893 if (kd == 0) { 894 mib[0] = CTL_KERN; 895 mib[1] = KERN_MAXFILES; 896 len = sizeof(maxfile); 897 if (sysctl(mib, 2, &maxfile, &len, NULL, 0) < 0) 898 err(1, "sysctl(KERN_MAXFILES) failed"); 899 if (totalflag) { 900 mib[0] = CTL_KERN; 901 mib[1] = KERN_NFILES; 902 len = sizeof(nfile); 903 if (sysctl(mib, 2, &nfile, &len, NULL, 0) < 0) 904 err(1, "sysctl(KERN_NFILES) failed"); 905 } 906 } else { 907 KGET(FNL_MAXFILE, maxfile); 908 if (totalflag) { 909 KGET(FNL_NFILE, nfile); 910 (void)printf("%3d/%3d files\n", nfile, maxfile); 911 return; 912 } 913 } 914 915 if (getfiles(&buf, &len) == -1) 916 return; 917 /* 918 * Getfiles returns in malloc'd memory a pointer to the first file 919 * structure, and then an array of file structs (whose addresses are 920 * derivable from the previous entry). 921 */ 922 addr = LIST_FIRST((struct filelist *)buf); 923 ffp = (struct file *)(buf + sizeof(struct filelist)); 924 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 925 926 (void)printf("%d/%d open files\n", nfile, maxfile); 927 928 (void)printf("%*s TYPE FLG CNT MSG %*s OFFSET\n", 929 2 * sizeof(long), "LOC", 2 * sizeof(long), "DATA"); 930 for (; (char *)ffp < buf + len; addr = LIST_NEXT(ffp, f_list), ffp++) { 931 memmove(&fp, ffp, sizeof fp); 932 if ((unsigned)fp.f_type > DTYPE_SOCKET) 933 continue; 934 (void)printf("%0*lx ", 2 * sizeof(long), (long)addr); 935 (void)printf("%-8.8s", dtypes[fp.f_type]); 936 fbp = flagbuf; 937 if (fp.f_flag & FREAD) 938 *fbp++ = 'R'; 939 if (fp.f_flag & FWRITE) 940 *fbp++ = 'W'; 941 if (fp.f_flag & FAPPEND) 942 *fbp++ = 'A'; 943 if (fp.f_flag & FHASLOCK) 944 *fbp++ = 'L'; 945 if (fp.f_flag & FASYNC) 946 *fbp++ = 'I'; 947 *fbp = '\0'; 948 (void)printf("%6s %3ld", flagbuf, fp.f_count); 949 (void)printf(" %3ld", fp.f_msgcount); 950 (void)printf(" %0*lx", 2 * sizeof(long), (long)fp.f_data); 951 952 if (fp.f_offset < 0) 953 (void)printf(" %llx\n", (long long)fp.f_offset); 954 else 955 (void)printf(" %lld\n", (long long)fp.f_offset); 956 } 957 free(buf); 958} 959 960int 961getfiles(char **abuf, size_t *alen) 962{ 963 size_t len; 964 int mib[2]; 965 char *buf; 966 967 /* 968 * XXX 969 * Add emulation of KINFO_FILE here. 970 */ 971 if (memf != NULL) 972 errx(1, "files on dead kernel, not implemented"); 973 974 mib[0] = CTL_KERN; 975 mib[1] = KERN_FILE; 976 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 977 warn("sysctl: KERN_FILE"); 978 return (-1); 979 } 980 if ((buf = malloc(len)) == NULL) 981 err(1, "malloc: KERN_FILE"); 982 if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) { 983 warn("sysctl: KERN_FILE"); 984 free(buf); 985 return (-1); 986 } 987 *abuf = buf; 988 *alen = len; 989 return (0); 990} 991 992/* 993 * swapmode is based on a program called swapinfo written 994 * by Kevin Lahey <kml@rokkaku.atl.ga.us>. 995 */ 996void 997swapmode(void) 998{ 999 char *header; 1000 int hlen = 10, nswap; 1001 int bdiv, i, avail, nfree, npfree, used; 1002 long blocksize; 1003 struct swapent *swdev; 1004 1005 if (kflag) { 1006 header = "1K-blocks"; 1007 blocksize = 1024; 1008 hlen = strlen(header); 1009 } else 1010 header = getbsize(&hlen, &blocksize); 1011 1012 nswap = swapctl(SWAP_NSWAP, 0, 0); 1013 if (nswap == 0) { 1014 if (!totalflag) 1015 (void)printf("%-11s %*s %8s %8s %8s %s\n", 1016 "Device", hlen, header, 1017 "Used", "Avail", "Capacity", "Priority"); 1018 (void)printf("%-11s %*d %8d %8d %5.0f%%\n", 1019 "Total", hlen, 0, 0, 0, 0.0); 1020 return; 1021 } 1022 if ((swdev = calloc(nswap, sizeof(*swdev))) == NULL) 1023 err(1, "malloc"); 1024 if (swapctl(SWAP_STATS, swdev, nswap) == -1) 1025 err(1, "swapctl"); 1026 1027 if (!totalflag) 1028 (void)printf("%-11s %*s %8s %8s %8s %s\n", 1029 "Device", hlen, header, 1030 "Used", "Avail", "Capacity", "Priority"); 1031 1032 /* Run through swap list, doing the funky monkey. */ 1033 bdiv = blocksize / DEV_BSIZE; 1034 avail = nfree = npfree = 0; 1035 for (i = 0; i < nswap; i++) { 1036 int xsize, xfree; 1037 1038 if (!(swdev[i].se_flags & SWF_ENABLE)) 1039 continue; 1040 1041 if (!totalflag) { 1042 if (usenumflag) 1043 (void)printf("%2d,%-2d %*d ", 1044 major(swdev[i].se_dev), 1045 minor(swdev[i].se_dev), 1046 hlen, swdev[i].se_nblks / bdiv); 1047 else 1048 (void)printf("%-11s %*d ", swdev[i].se_path, 1049 hlen, swdev[i].se_nblks / bdiv); 1050 } 1051 1052 xsize = swdev[i].se_nblks; 1053 used = swdev[i].se_inuse; 1054 xfree = xsize - used; 1055 nfree += (xsize - used); 1056 npfree++; 1057 avail += xsize; 1058 if (totalflag) 1059 continue; 1060 (void)printf("%8d %8d %5.0f%% %d\n", 1061 used / bdiv, xfree / bdiv, 1062 (double)used / (double)xsize * 100.0, 1063 swdev[i].se_priority); 1064 } 1065 free(swdev); 1066 1067 /* 1068 * If only one partition has been set up via swapon(8), we don't 1069 * need to bother with totals. 1070 */ 1071 used = avail - nfree; 1072 if (totalflag) { 1073 (void)printf("%dM/%dM swap space\n", 1074 used / (1048576 / DEV_BSIZE), 1075 avail / (1048576 / DEV_BSIZE)); 1076 return; 1077 } 1078 if (npfree > 1) { 1079 (void)printf("%-11s %*d %8d %8d %5.0f%%\n", 1080 "Total", hlen, avail / bdiv, used / bdiv, nfree / bdiv, 1081 (double)used / (double)avail * 100.0); 1082 } 1083} 1084 1085void 1086usage(void) 1087{ 1088 (void)fprintf(stderr, 1089 "usage: pstat [-fknsTtv] [-M core] [-N system]\n"); 1090 exit(1); 1091} 1092