pstat.c revision 1.26
1 /* $NetBSD: pstat.c,v 1.26 1996/10/23 22:19:23 cgd Exp $ */ 2 3 /*- 4 * Copyright (c) 1980, 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef lint 37 static char copyright[] = 38 "@(#) Copyright (c) 1980, 1991, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"; 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 from: static char sccsid[] = "@(#)pstat.c 8.9 (Berkeley) 2/16/94"; 45 #else 46 static char *rcsid = "$NetBSD: pstat.c,v 1.26 1996/10/23 22:19:23 cgd Exp $"; 47 #endif 48 #endif /* not lint */ 49 50 #include <sys/param.h> 51 #include <sys/time.h> 52 #include <sys/vnode.h> 53 #include <sys/map.h> 54 #include <sys/ucred.h> 55 #define _KERNEL 56 #include <sys/file.h> 57 #include <ufs/ufs/quota.h> 58 #include <ufs/ufs/inode.h> 59 #define NFS 60 #include <sys/mount.h> 61 #undef NFS 62 #undef _KERNEL 63 #include <sys/stat.h> 64 #include <nfs/nfsproto.h> 65 #include <nfs/rpcv2.h> 66 #include <nfs/nfsnode.h> 67 #include <sys/ioctl.h> 68 #include <sys/tty.h> 69 #include <sys/conf.h> 70 #include <sys/device.h> 71 72 #include <sys/sysctl.h> 73 74 #include <err.h> 75 #include <kvm.h> 76 #include <limits.h> 77 #include <nlist.h> 78 #include <stdio.h> 79 #include <stdlib.h> 80 #include <string.h> 81 #include <unistd.h> 82 83 struct nlist nl[] = { 84 #define VM_SWAPMAP 0 85 { "_swapmap" }, /* list of free swap areas */ 86 #define VM_NSWAPMAP 1 87 { "_nswapmap" },/* size of the swap map */ 88 #define VM_SWDEVT 2 89 { "_swdevt" }, /* list of swap devices and sizes */ 90 #define VM_NSWAP 3 91 { "_nswap" }, /* size of largest swap device */ 92 #define VM_NSWDEV 4 93 { "_nswdev" }, /* number of swap devices */ 94 #define VM_DMMAX 5 95 { "_dmmax" }, /* maximum size of a swap block */ 96 #define V_MOUNTLIST 6 97 { "_mountlist" }, /* address of head of mount list. */ 98 #define V_NUMV 7 99 { "_numvnodes" }, 100 #define FNL_NFILE 8 101 {"_nfiles"}, 102 #define FNL_MAXFILE 9 103 {"_maxfiles"}, 104 #define TTY_NTTY 10 105 {"_tty_count"}, 106 #define TTY_TTYLIST 11 107 {"_ttylist"}, 108 #define NLMANDATORY TTY_TTYLIST /* names up to here are mandatory */ 109 #define VM_NISWAP NLMANDATORY + 1 110 { "_niswap" }, 111 #define VM_NISWDEV NLMANDATORY + 2 112 { "_niswdev" }, 113 { "" } 114 }; 115 116 int usenumflag; 117 int totalflag; 118 int kflag; 119 char *nlistf = NULL; 120 char *memf = NULL; 121 kvm_t *kd; 122 123 #define SVAR(var) __STRING(var) /* to force expansion */ 124 #define KGET(idx, var) \ 125 KGET1(idx, &var, sizeof(var), SVAR(var)) 126 #define KGET1(idx, p, s, msg) \ 127 KGET2(nl[idx].n_value, p, s, msg) 128 #define KGET2(addr, p, s, msg) \ 129 if (kvm_read(kd, (u_long)(addr), p, s) != s) \ 130 warnx("cannot read %s: %s", msg, kvm_geterr(kd)) 131 #define KGETRET(addr, p, s, msg) \ 132 if (kvm_read(kd, (u_long)(addr), p, s) != s) { \ 133 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 134 return (0); \ 135 } 136 137 void filemode __P((void)); 138 int getfiles __P((char **, int *)); 139 struct mount * 140 getmnt __P((struct mount *)); 141 struct e_vnode * 142 kinfo_vnodes __P((int *)); 143 struct e_vnode * 144 loadvnodes __P((int *)); 145 void mount_print __P((struct mount *)); 146 void nfs_header __P((void)); 147 int nfs_print __P((struct vnode *)); 148 void swapmode __P((void)); 149 void ttymode __P((void)); 150 void ttyprt __P((struct tty *)); 151 void ufs_header __P((void)); 152 int ufs_print __P((struct vnode *)); 153 void usage __P((void)); 154 void vnode_header __P((void)); 155 void vnode_print __P((struct vnode *, struct vnode *)); 156 void vnodemode __P((void)); 157 158 int 159 main(argc, argv) 160 int argc; 161 char *argv[]; 162 { 163 extern char *optarg; 164 extern int optind; 165 int ch, i, quit, ret; 166 int fileflag, swapflag, ttyflag, vnodeflag; 167 char buf[_POSIX2_LINE_MAX]; 168 169 fileflag = swapflag = ttyflag = vnodeflag = 0; 170 while ((ch = getopt(argc, argv, "TM:N:fiknstv")) != -1) 171 switch (ch) { 172 case 'f': 173 fileflag = 1; 174 break; 175 case 'M': 176 memf = optarg; 177 break; 178 case 'N': 179 nlistf = optarg; 180 break; 181 case 'n': 182 usenumflag = 1; 183 break; 184 case 's': 185 swapflag = 1; 186 break; 187 case 'T': 188 totalflag = 1; 189 break; 190 case 't': 191 ttyflag = 1; 192 break; 193 case 'k': 194 kflag = 1; 195 break; 196 case 'v': 197 case 'i': /* Backward compatibility. */ 198 vnodeflag = 1; 199 break; 200 default: 201 usage(); 202 } 203 argc -= optind; 204 argv += optind; 205 206 /* 207 * Discard setgid privileges if not the running kernel so that bad 208 * guys can't print interesting stuff from kernel memory. 209 */ 210 if (nlistf != NULL || memf != NULL) 211 (void)setgid(getgid()); 212 213 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0) 214 errx(1, "kvm_openfiles: %s", buf); 215 if ((ret = kvm_nlist(kd, nl)) != 0) { 216 if (ret == -1) 217 errx(1, "kvm_nlist: %s", kvm_geterr(kd)); 218 for (i = quit = 0; i <= NLMANDATORY; i++) 219 if (!nl[i].n_value) { 220 quit = 1; 221 warnx("undefined symbol: %s", nl[i].n_name); 222 } 223 if (quit) 224 exit(1); 225 } 226 if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag)) 227 usage(); 228 if (fileflag || totalflag) 229 filemode(); 230 if (vnodeflag || totalflag) 231 vnodemode(); 232 if (ttyflag) 233 ttymode(); 234 if (swapflag || totalflag) 235 swapmode(); 236 exit (0); 237 } 238 239 struct e_vnode { 240 struct vnode *avnode; 241 struct vnode vnode; 242 }; 243 244 void 245 vnodemode() 246 { 247 register struct e_vnode *e_vnodebase, *endvnode, *evp; 248 register struct vnode *vp; 249 register struct mount *maddr, *mp; 250 int numvnodes; 251 252 e_vnodebase = loadvnodes(&numvnodes); 253 if (totalflag) { 254 (void)printf("%7d vnodes\n", numvnodes); 255 return; 256 } 257 endvnode = e_vnodebase + numvnodes; 258 (void)printf("%d active vnodes\n", numvnodes); 259 260 261 #define ST mp->mnt_stat 262 maddr = NULL; 263 for (evp = e_vnodebase; evp < endvnode; evp++) { 264 vp = &evp->vnode; 265 if (vp->v_mount != maddr) { 266 /* 267 * New filesystem 268 */ 269 if ((mp = getmnt(vp->v_mount)) == NULL) 270 continue; 271 maddr = vp->v_mount; 272 mount_print(mp); 273 vnode_header(); 274 if (!strncmp(ST.f_fstypename, MOUNT_FFS, MFSNAMELEN) || 275 !strncmp(ST.f_fstypename, MOUNT_MFS, MFSNAMELEN)) { 276 ufs_header(); 277 } else if (!strncmp(ST.f_fstypename, MOUNT_NFS, 278 MFSNAMELEN)) { 279 nfs_header(); 280 } 281 (void)printf("\n"); 282 } 283 vnode_print(evp->avnode, vp); 284 if (!strncmp(ST.f_fstypename, MOUNT_FFS, MFSNAMELEN) || 285 !strncmp(ST.f_fstypename, MOUNT_MFS, MFSNAMELEN)) { 286 ufs_print(vp); 287 } else if (!strncmp(ST.f_fstypename, MOUNT_NFS, MFSNAMELEN)) { 288 nfs_print(vp); 289 } 290 (void)printf("\n"); 291 } 292 free(e_vnodebase); 293 } 294 295 void 296 vnode_header() 297 { 298 (void)printf("ADDR TYP VFLAG USE HOLD"); 299 } 300 301 void 302 vnode_print(avnode, vp) 303 struct vnode *avnode; 304 struct vnode *vp; 305 { 306 char *type, flags[16]; 307 char *fp = flags; 308 register int flag; 309 310 /* 311 * set type 312 */ 313 switch(vp->v_type) { 314 case VNON: 315 type = "non"; break; 316 case VREG: 317 type = "reg"; break; 318 case VDIR: 319 type = "dir"; break; 320 case VBLK: 321 type = "blk"; break; 322 case VCHR: 323 type = "chr"; break; 324 case VLNK: 325 type = "lnk"; break; 326 case VSOCK: 327 type = "soc"; break; 328 case VFIFO: 329 type = "fif"; break; 330 case VBAD: 331 type = "bad"; break; 332 default: 333 type = "unk"; break; 334 } 335 /* 336 * gather flags 337 */ 338 flag = vp->v_flag; 339 if (flag & VROOT) 340 *fp++ = 'R'; 341 if (flag & VTEXT) 342 *fp++ = 'T'; 343 if (flag & VSYSTEM) 344 *fp++ = 'S'; 345 if (flag & VISTTY) 346 *fp++ = 'I'; 347 if (flag & VXLOCK) 348 *fp++ = 'L'; 349 if (flag & VXWANT) 350 *fp++ = 'W'; 351 if (flag & VBWAIT) 352 *fp++ = 'B'; 353 if (flag & VALIASED) 354 *fp++ = 'A'; 355 if (flag == 0) 356 *fp++ = '-'; 357 *fp = '\0'; 358 (void)printf("%8x %s %5s %4d %4d", 359 avnode, type, flags, vp->v_usecount, vp->v_holdcnt); 360 } 361 362 void 363 ufs_header() 364 { 365 (void)printf(" FILEID IFLAG RDEV|SZ"); 366 } 367 368 int 369 ufs_print(vp) 370 struct vnode *vp; 371 { 372 register int flag; 373 struct inode inode, *ip = &inode; 374 char flagbuf[16], *flags = flagbuf; 375 char *name; 376 mode_t type; 377 378 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 379 flag = ip->i_flag; 380 if (flag & IN_LOCKED) 381 *flags++ = 'L'; 382 if (flag & IN_WANTED) 383 *flags++ = 'W'; 384 if (flag & IN_RENAME) 385 *flags++ = 'R'; 386 if (flag & IN_UPDATE) 387 *flags++ = 'U'; 388 if (flag & IN_ACCESS) 389 *flags++ = 'A'; 390 if (flag & IN_CHANGE) 391 *flags++ = 'C'; 392 if (flag & IN_MODIFIED) 393 *flags++ = 'M'; 394 if (flag & IN_SHLOCK) 395 *flags++ = 'S'; 396 if (flag & IN_EXLOCK) 397 *flags++ = 'E'; 398 if (flag & IN_LWAIT) 399 *flags++ = 'Z'; 400 if (flag == 0) 401 *flags++ = '-'; 402 *flags = '\0'; 403 404 (void)printf(" %6d %5s", ip->i_number, flagbuf); 405 type = ip->i_mode & S_IFMT; 406 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) 407 if (usenumflag || ((name = devname(ip->i_rdev, type)) == NULL)) 408 (void)printf(" %2d,%-2d", 409 major(ip->i_rdev), minor(ip->i_rdev)); 410 else 411 (void)printf(" %7s", name); 412 else 413 (void)printf(" %7qd", ip->i_size); 414 return (0); 415 } 416 417 void 418 nfs_header() 419 { 420 (void)printf(" FILEID NFLAG RDEV|SZ"); 421 } 422 423 int 424 nfs_print(vp) 425 struct vnode *vp; 426 { 427 struct nfsnode nfsnode, *np = &nfsnode; 428 char flagbuf[16], *flags = flagbuf; 429 register int flag; 430 char *name; 431 mode_t type; 432 433 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 434 flag = np->n_flag; 435 if (flag & NFLUSHWANT) 436 *flags++ = 'W'; 437 if (flag & NFLUSHINPROG) 438 *flags++ = 'P'; 439 if (flag & NMODIFIED) 440 *flags++ = 'M'; 441 if (flag & NWRITEERR) 442 *flags++ = 'E'; 443 if (flag & NQNFSNONCACHE) 444 *flags++ = 'X'; 445 if (flag & NQNFSWRITE) 446 *flags++ = 'O'; 447 if (flag & NQNFSEVICTED) 448 *flags++ = 'G'; 449 if (flag == 0) 450 *flags++ = '-'; 451 *flags = '\0'; 452 453 #define VT np->n_vattr 454 (void)printf(" %6d %5s", VT.va_fileid, flagbuf); 455 type = VT.va_mode & S_IFMT; 456 if (S_ISCHR(VT.va_mode) || S_ISBLK(VT.va_mode)) 457 if (usenumflag || ((name = devname(VT.va_rdev, type)) == NULL)) 458 (void)printf(" %2d,%-2d", 459 major(VT.va_rdev), minor(VT.va_rdev)); 460 else 461 (void)printf(" %7s", name); 462 else 463 (void)printf(" %7qd", np->n_size); 464 return (0); 465 } 466 467 /* 468 * Given a pointer to a mount structure in kernel space, 469 * read it in and return a usable pointer to it. 470 */ 471 struct mount * 472 getmnt(maddr) 473 struct mount *maddr; 474 { 475 static struct mtab { 476 struct mtab *next; 477 struct mount *maddr; 478 struct mount mount; 479 } *mhead = NULL; 480 register struct mtab *mt; 481 482 for (mt = mhead; mt != NULL; mt = mt->next) 483 if (maddr == mt->maddr) 484 return (&mt->mount); 485 if ((mt = malloc(sizeof(struct mtab))) == NULL) 486 err(1, NULL); 487 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 488 mt->maddr = maddr; 489 mt->next = mhead; 490 mhead = mt; 491 return (&mt->mount); 492 } 493 494 void 495 mount_print(mp) 496 struct mount *mp; 497 { 498 register int flags; 499 char *type; 500 501 #define ST mp->mnt_stat 502 (void)printf("*** MOUNT "); 503 (void)printf("%.*s %s on %s", MFSNAMELEN, ST.f_fstypename, 504 ST.f_mntfromname, ST.f_mntonname); 505 if (flags = mp->mnt_flag) { 506 char *comma = "("; 507 508 putchar(' '); 509 /* user visable flags */ 510 if (flags & MNT_RDONLY) { 511 (void)printf("%srdonly", comma); 512 flags &= ~MNT_RDONLY; 513 comma = ","; 514 } 515 if (flags & MNT_SYNCHRONOUS) { 516 (void)printf("%ssynchronous", comma); 517 flags &= ~MNT_SYNCHRONOUS; 518 comma = ","; 519 } 520 if (flags & MNT_NOEXEC) { 521 (void)printf("%snoexec", comma); 522 flags &= ~MNT_NOEXEC; 523 comma = ","; 524 } 525 if (flags & MNT_NOSUID) { 526 (void)printf("%snosuid", comma); 527 flags &= ~MNT_NOSUID; 528 comma = ","; 529 } 530 if (flags & MNT_NODEV) { 531 (void)printf("%snodev", comma); 532 flags &= ~MNT_NODEV; 533 comma = ","; 534 } 535 if (flags & MNT_UNION) { 536 (void)printf("%sunion", comma); 537 flags &= ~MNT_UNION; 538 comma = ","; 539 } 540 if (flags & MNT_ASYNC) { 541 (void)printf("%sasync", comma); 542 flags &= ~MNT_ASYNC; 543 comma = ","; 544 } 545 if (flags & MNT_EXRDONLY) { 546 (void)printf("%sexrdonly", comma); 547 flags &= ~MNT_EXRDONLY; 548 comma = ","; 549 } 550 if (flags & MNT_EXPORTED) { 551 (void)printf("%sexport", comma); 552 flags &= ~MNT_EXPORTED; 553 comma = ","; 554 } 555 if (flags & MNT_DEFEXPORTED) { 556 (void)printf("%sdefdexported", comma); 557 flags &= ~MNT_DEFEXPORTED; 558 comma = ","; 559 } 560 if (flags & MNT_EXPORTANON) { 561 (void)printf("%sexportanon", comma); 562 flags &= ~MNT_EXPORTANON; 563 comma = ","; 564 } 565 if (flags & MNT_EXKERB) { 566 (void)printf("%sexkerb", comma); 567 flags &= ~MNT_EXKERB; 568 comma = ","; 569 } 570 if (flags & MNT_LOCAL) { 571 (void)printf("%slocal", comma); 572 flags &= ~MNT_LOCAL; 573 comma = ","; 574 } 575 if (flags & MNT_QUOTA) { 576 (void)printf("%squota", comma); 577 flags &= ~MNT_QUOTA; 578 comma = ","; 579 } 580 if (flags & MNT_ROOTFS) { 581 (void)printf("%srootfs", comma); 582 flags &= ~MNT_ROOTFS; 583 comma = ","; 584 } 585 /* filesystem control flags */ 586 if (flags & MNT_UPDATE) { 587 (void)printf("%supdate", comma); 588 flags &= ~MNT_UPDATE; 589 comma = ","; 590 } 591 if (flags & MNT_MLOCK) { 592 (void)printf("%slock", comma); 593 flags &= ~MNT_MLOCK; 594 comma = ","; 595 } 596 if (flags & MNT_MWAIT) { 597 (void)printf("%swait", comma); 598 flags &= ~MNT_MWAIT; 599 comma = ","; 600 } 601 if (flags & MNT_MPBUSY) { 602 (void)printf("%sbusy", comma); 603 flags &= ~MNT_MPBUSY; 604 comma = ","; 605 } 606 if (flags & MNT_MPWANT) { 607 (void)printf("%swant", comma); 608 flags &= ~MNT_MPWANT; 609 comma = ","; 610 } 611 if (flags & MNT_UNMOUNT) { 612 (void)printf("%sunmount", comma); 613 flags &= ~MNT_UNMOUNT; 614 comma = ","; 615 } 616 if (flags) 617 (void)printf("%sunknown_flags:%x", comma, flags); 618 (void)printf(")"); 619 } 620 (void)printf("\n"); 621 #undef ST 622 } 623 624 struct e_vnode * 625 loadvnodes(avnodes) 626 int *avnodes; 627 { 628 int mib[2]; 629 size_t copysize; 630 struct e_vnode *vnodebase; 631 632 if (memf != NULL) { 633 /* 634 * do it by hand 635 */ 636 return (kinfo_vnodes(avnodes)); 637 } 638 mib[0] = CTL_KERN; 639 mib[1] = KERN_VNODE; 640 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 641 err(1, "sysctl: KERN_VNODE"); 642 if ((vnodebase = malloc(copysize)) == NULL) 643 err(1, NULL); 644 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 645 err(1, "sysctl: KERN_VNODE"); 646 if (copysize % sizeof(struct e_vnode)) 647 errx(1, "vnode size mismatch"); 648 *avnodes = copysize / sizeof(struct e_vnode); 649 650 return (vnodebase); 651 } 652 653 /* 654 * simulate what a running kernel does in in kinfo_vnode 655 */ 656 struct e_vnode * 657 kinfo_vnodes(avnodes) 658 int *avnodes; 659 { 660 struct mntlist mountlist; 661 struct mount *mp, mount; 662 struct vnode *vp, vnode; 663 char *vbuf, *evbuf, *bp; 664 int num, numvnodes; 665 666 #define VPTRSZ sizeof(struct vnode *) 667 #define VNODESZ sizeof(struct vnode) 668 669 KGET(V_NUMV, numvnodes); 670 if ((vbuf = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 671 err(1, NULL); 672 bp = vbuf; 673 evbuf = vbuf + (numvnodes + 20) * (VPTRSZ + VNODESZ); 674 KGET(V_MOUNTLIST, mountlist); 675 for (num = 0, mp = mountlist.cqh_first; ; mp = mount.mnt_list.cqe_next) { 676 KGET2(mp, &mount, sizeof(mount), "mount entry"); 677 for (vp = mount.mnt_vnodelist.lh_first; 678 vp != NULL; vp = vnode.v_mntvnodes.le_next) { 679 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 680 if ((bp + VPTRSZ + VNODESZ) > evbuf) 681 /* XXX - should realloc */ 682 errx(1, "no more room for vnodes"); 683 memmove(bp, &vp, VPTRSZ); 684 bp += VPTRSZ; 685 memmove(bp, &vnode, VNODESZ); 686 bp += VNODESZ; 687 num++; 688 } 689 if (mp == mountlist.cqh_last) 690 break; 691 } 692 *avnodes = num; 693 return ((struct e_vnode *)vbuf); 694 } 695 696 char hdr[]=" LINE RAW CAN OUT HWT LWT COL STATE SESS PGID DISC\n"; 697 698 void 699 ttymode() 700 { 701 int ntty, i; 702 struct ttylist_head tty_head; 703 struct tty *tp, tty; 704 705 KGET(TTY_NTTY, ntty); 706 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 707 KGET(TTY_TTYLIST, tty_head); 708 (void)printf(hdr); 709 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 710 KGET2(tp, &tty, sizeof tty, "tty struct"); 711 ttyprt(&tty); 712 } 713 } 714 715 struct { 716 int flag; 717 char val; 718 } ttystates[] = { 719 { TS_WOPEN, 'W'}, 720 { TS_ISOPEN, 'O'}, 721 { TS_CARR_ON, 'C'}, 722 { TS_TIMEOUT, 'T'}, 723 { TS_FLUSH, 'F'}, 724 { TS_BUSY, 'B'}, 725 { TS_ASLEEP, 'A'}, 726 { TS_XCLUDE, 'X'}, 727 { TS_TTSTOP, 'S'}, 728 { TS_TBLOCK, 'K'}, 729 { TS_ASYNC, 'Y'}, 730 { TS_BKSL, 'D'}, 731 { TS_ERASE, 'E'}, 732 { TS_LNCH, 'L'}, 733 { TS_TYPEN, 'P'}, 734 { TS_CNTTB, 'N'}, 735 { 0, '\0'}, 736 }; 737 738 void 739 ttyprt(tp) 740 register struct tty *tp; 741 { 742 register int i, j; 743 pid_t pgid; 744 char *name, state[20]; 745 746 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) 747 (void)printf("0x%3x:%1x ", major(tp->t_dev), minor(tp->t_dev)); 748 else 749 (void)printf("%-7s ", name); 750 (void)printf("%3d %4d ", tp->t_rawq.c_cc, tp->t_canq.c_cc); 751 (void)printf("%4d %4d %3d %6d ", tp->t_outq.c_cc, 752 tp->t_hiwat, tp->t_lowat, tp->t_column); 753 for (i = j = 0; ttystates[i].flag; i++) 754 if (tp->t_state&ttystates[i].flag) 755 state[j++] = ttystates[i].val; 756 if (j == 0) 757 state[j++] = '-'; 758 state[j] = '\0'; 759 (void)printf("%-6s %8x", state, (u_long)tp->t_session & ~KERNBASE); 760 pgid = 0; 761 if (tp->t_pgrp != NULL) 762 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 763 (void)printf("%6d ", pgid); 764 switch (tp->t_line) { 765 case TTYDISC: 766 (void)printf("term\n"); 767 break; 768 case TABLDISC: 769 (void)printf("tab\n"); 770 break; 771 case SLIPDISC: 772 (void)printf("slip\n"); 773 break; 774 case PPPDISC: 775 (void)printf("ppp\n"); 776 break; 777 case STRIPDISC: 778 (void)printf("strip\n"); 779 break; 780 default: 781 (void)printf("%d\n", tp->t_line); 782 break; 783 } 784 } 785 786 void 787 filemode() 788 { 789 register struct file *fp; 790 struct file *addr; 791 char *buf, flagbuf[16], *fbp; 792 int len, maxfile, nfile; 793 static char *dtypes[] = { "???", "inode", "socket" }; 794 795 KGET(FNL_MAXFILE, maxfile); 796 if (totalflag) { 797 KGET(FNL_NFILE, nfile); 798 (void)printf("%3d/%3d files\n", nfile, maxfile); 799 return; 800 } 801 if (getfiles(&buf, &len) == -1) 802 return; 803 /* 804 * Getfiles returns in malloc'd memory a pointer to the first file 805 * structure, and then an array of file structs (whose addresses are 806 * derivable from the previous entry). 807 */ 808 addr = ((struct filelist *)buf)->lh_first; 809 fp = (struct file *)(buf + sizeof(struct filelist)); 810 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 811 812 (void)printf("%d/%d open files\n", nfile, maxfile); 813 (void)printf(" LOC TYPE FLG CNT MSG DATA OFFSET\n"); 814 for (; (char *)fp < buf + len; addr = fp->f_list.le_next, fp++) { 815 if ((unsigned)fp->f_type > DTYPE_SOCKET) 816 continue; 817 (void)printf("%x ", addr); 818 (void)printf("%-8.8s", dtypes[fp->f_type]); 819 fbp = flagbuf; 820 if (fp->f_flag & FREAD) 821 *fbp++ = 'R'; 822 if (fp->f_flag & FWRITE) 823 *fbp++ = 'W'; 824 if (fp->f_flag & FAPPEND) 825 *fbp++ = 'A'; 826 #ifdef FSHLOCK /* currently gone */ 827 if (fp->f_flag & FSHLOCK) 828 *fbp++ = 'S'; 829 if (fp->f_flag & FEXLOCK) 830 *fbp++ = 'X'; 831 #endif 832 if (fp->f_flag & FASYNC) 833 *fbp++ = 'I'; 834 *fbp = '\0'; 835 (void)printf("%6s %3d", flagbuf, fp->f_count); 836 (void)printf(" %3d", fp->f_msgcount); 837 (void)printf(" %8.1x", fp->f_data); 838 if (fp->f_offset < 0) 839 (void)printf(" %qx\n", fp->f_offset); 840 else 841 (void)printf(" %qd\n", fp->f_offset); 842 } 843 free(buf); 844 } 845 846 int 847 getfiles(abuf, alen) 848 char **abuf; 849 int *alen; 850 { 851 size_t len; 852 int mib[2]; 853 char *buf; 854 855 /* 856 * XXX 857 * Add emulation of KINFO_FILE here. 858 */ 859 if (memf != NULL) 860 errx(1, "files on dead kernel, not implemented\n"); 861 862 mib[0] = CTL_KERN; 863 mib[1] = KERN_FILE; 864 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 865 warn("sysctl: KERN_FILE"); 866 return (-1); 867 } 868 if ((buf = malloc(len)) == NULL) 869 err(1, NULL); 870 if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) { 871 warn("sysctl: KERN_FILE"); 872 return (-1); 873 } 874 *abuf = buf; 875 *alen = len; 876 return (0); 877 } 878 879 /* 880 * swapmode is based on a program called swapinfo written 881 * by Kevin Lahey <kml (at) rokkaku.atl.ga.us>. 882 */ 883 void 884 swapmode() 885 { 886 char *header; 887 int hlen, nswap, nswdev, dmmax, nswapmap, niswap, niswdev; 888 int s, e, div, i, l, avail, nfree, npfree, used; 889 struct swdevt *sw; 890 long blocksize, *perdev; 891 struct map *swapmap, *kswapmap; 892 struct mapent *mp; 893 894 KGET(VM_NSWAP, nswap); 895 KGET(VM_NSWDEV, nswdev); 896 KGET(VM_DMMAX, dmmax); 897 KGET(VM_NSWAPMAP, nswapmap); 898 KGET(VM_SWAPMAP, kswapmap); /* kernel `swapmap' is a pointer */ 899 if ((sw = malloc(nswdev * sizeof(*sw))) == NULL || 900 (perdev = malloc(nswdev * sizeof(*perdev))) == NULL || 901 (mp = malloc(nswapmap * sizeof(*mp))) == NULL) 902 err(1, "malloc"); 903 KGET1(VM_SWDEVT, sw, nswdev * sizeof(*sw), "swdevt"); 904 KGET2((long)kswapmap, mp, nswapmap * sizeof(*mp), "swapmap"); 905 906 /* Supports sequential swap */ 907 if (nl[VM_NISWAP].n_value != 0) { 908 KGET(VM_NISWAP, niswap); 909 KGET(VM_NISWDEV, niswdev); 910 } else { 911 niswap = nswap; 912 niswdev = nswdev; 913 } 914 915 /* First entry in map is `struct map'; rest are mapent's. */ 916 swapmap = (struct map *)mp; 917 if (nswapmap != swapmap->m_limit - (struct mapent *)kswapmap) 918 errx(1, "panic: nswapmap goof"); 919 920 /* Count up swap space. */ 921 nfree = 0; 922 memset(perdev, 0, nswdev * sizeof(*perdev)); 923 for (mp++; mp->m_addr != 0; mp++) { 924 s = mp->m_addr; /* start of swap region */ 925 e = mp->m_addr + mp->m_size; /* end of region */ 926 nfree += mp->m_size; 927 928 /* 929 * Swap space is split up among the configured disks. 930 * 931 * For interleaved swap devices, the first dmmax blocks 932 * of swap space some from the first disk, the next dmmax 933 * blocks from the next, and so on up to niswap blocks. 934 * 935 * Sequential swap devices follow the interleaved devices 936 * (i.e. blocks starting at niswap) in the order in which 937 * they appear in the swdev table. The size of each device 938 * will be a multiple of dmmax. 939 * 940 * The list of free space joins adjacent free blocks, 941 * ignoring device boundries. If we want to keep track 942 * of this information per device, we'll just have to 943 * extract it ourselves. We know that dmmax-sized chunks 944 * cannot span device boundaries (interleaved or sequential) 945 * so we loop over such chunks assigning them to devices. 946 */ 947 i = -1; 948 while (s < e) { /* XXX this is inefficient */ 949 int bound = roundup(s+1, dmmax); 950 951 if (bound > e) 952 bound = e; 953 if (bound <= niswap) { 954 /* Interleaved swap chunk. */ 955 if (i == -1) 956 i = (s / dmmax) % niswdev; 957 perdev[i] += bound - s; 958 if (++i >= niswdev) 959 i = 0; 960 } else { 961 /* Sequential swap chunk. */ 962 if (i < niswdev) { 963 i = niswdev; 964 l = niswap + sw[i].sw_nblks; 965 } 966 while (s >= l) { 967 /* XXX don't die on bogus blocks */ 968 if (i == nswdev-1) 969 break; 970 l += sw[++i].sw_nblks; 971 } 972 perdev[i] += bound - s; 973 } 974 s = bound; 975 } 976 } 977 978 if (kflag) { 979 header = "1K-blocks"; 980 blocksize = 1024; 981 hlen = strlen(header); 982 } else 983 header = getbsize(&hlen, &blocksize); 984 if (!totalflag) 985 (void)printf("%-11s %*s %8s %8s %8s %s\n", 986 "Device", hlen, header, 987 "Used", "Avail", "Capacity", "Type"); 988 div = blocksize / 512; 989 avail = npfree = 0; 990 for (i = 0; i < nswdev; i++) { 991 int xsize, xfree; 992 993 /* 994 * Don't report statistics for partitions which have not 995 * yet been activated via swapon(8). 996 */ 997 if (!(sw[i].sw_flags & SW_FREED)) 998 continue; 999 1000 if (!totalflag) 1001 (void)printf("/dev/%-6s %*d ", 1002 devname(sw[i].sw_dev, S_IFBLK), 1003 hlen, sw[i].sw_nblks / div); 1004 1005 xsize = sw[i].sw_nblks; 1006 xfree = perdev[i]; 1007 used = xsize - xfree; 1008 npfree++; 1009 avail += xsize; 1010 if (totalflag) 1011 continue; 1012 (void)printf("%8d %8d %5.0f%% %s\n", 1013 used / div, xfree / div, 1014 (double)used / (double)xsize * 100.0, 1015 (sw[i].sw_flags & SW_SEQUENTIAL) ? 1016 "Sequential" : "Interleaved"); 1017 } 1018 1019 /* 1020 * If only one partition has been set up via swapon(8), we don't 1021 * need to bother with totals. 1022 */ 1023 used = avail - nfree; 1024 if (totalflag) { 1025 (void)printf("%dM/%dM swap space\n", used / 2048, avail / 2048); 1026 return; 1027 } 1028 if (npfree > 1) { 1029 (void)printf("%-11s %*d %8d %8d %5.0f%%\n", 1030 "Total", hlen, avail / div, used / div, nfree / div, 1031 (double)used / (double)avail * 100.0); 1032 } 1033 } 1034 1035 void 1036 usage() 1037 { 1038 (void)fprintf(stderr, 1039 "usage: pstat [-Tfknstv] [-M core] [-N system]\n"); 1040 exit(1); 1041 } 1042
Indexes created Wed Sep 24 22:09:59 GMT 2025