pstat.c revision 1.29
1 /* $NetBSD: pstat.c,v 1.29 1997/06/05 06:14:17 mikel 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 1.29 1997/06/05 06:14:17 mikel 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 & VDIROP) 356 *fp++ = 'D'; 357 if (flag == 0) 358 *fp++ = '-'; 359 *fp = '\0'; 360 (void)printf("%8x %s %5s %4d %4d", 361 avnode, type, flags, vp->v_usecount, vp->v_holdcnt); 362 } 363 364 void 365 ufs_header() 366 { 367 (void)printf(" FILEID IFLAG RDEV|SZ"); 368 } 369 370 int 371 ufs_print(vp) 372 struct vnode *vp; 373 { 374 register int flag; 375 struct inode inode, *ip = &inode; 376 char flagbuf[16], *flags = flagbuf; 377 char *name; 378 mode_t type; 379 380 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 381 flag = ip->i_flag; 382 if (flag & IN_LOCKED) 383 *flags++ = 'L'; 384 if (flag & IN_WANTED) 385 *flags++ = 'W'; 386 if (flag & IN_RENAME) 387 *flags++ = 'R'; 388 if (flag & IN_UPDATE) 389 *flags++ = 'U'; 390 if (flag & IN_ACCESS) 391 *flags++ = 'A'; 392 if (flag & IN_CHANGE) 393 *flags++ = 'C'; 394 if (flag & IN_MODIFIED) 395 *flags++ = 'M'; 396 if (flag & IN_SHLOCK) 397 *flags++ = 'S'; 398 if (flag & IN_EXLOCK) 399 *flags++ = 'E'; 400 if (flag & IN_LWAIT) 401 *flags++ = 'Z'; 402 if (flag == 0) 403 *flags++ = '-'; 404 *flags = '\0'; 405 406 (void)printf(" %6d %5s", ip->i_number, flagbuf); 407 type = ip->i_mode & S_IFMT; 408 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) 409 if (usenumflag || ((name = devname(ip->i_rdev, type)) == NULL)) 410 (void)printf(" %2d,%-2d", 411 major(ip->i_rdev), minor(ip->i_rdev)); 412 else 413 (void)printf(" %7s", name); 414 else 415 (void)printf(" %7qd", ip->i_size); 416 return (0); 417 } 418 419 void 420 nfs_header() 421 { 422 (void)printf(" FILEID NFLAG RDEV|SZ"); 423 } 424 425 int 426 nfs_print(vp) 427 struct vnode *vp; 428 { 429 struct nfsnode nfsnode, *np = &nfsnode; 430 char flagbuf[16], *flags = flagbuf; 431 register int flag; 432 char *name; 433 mode_t type; 434 435 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 436 flag = np->n_flag; 437 if (flag & NFLUSHWANT) 438 *flags++ = 'W'; 439 if (flag & NFLUSHINPROG) 440 *flags++ = 'P'; 441 if (flag & NMODIFIED) 442 *flags++ = 'M'; 443 if (flag & NWRITEERR) 444 *flags++ = 'E'; 445 if (flag & NQNFSNONCACHE) 446 *flags++ = 'X'; 447 if (flag & NQNFSWRITE) 448 *flags++ = 'O'; 449 if (flag & NQNFSEVICTED) 450 *flags++ = 'G'; 451 if (flag == 0) 452 *flags++ = '-'; 453 *flags = '\0'; 454 455 #define VT np->n_vattr 456 (void)printf(" %6d %5s", VT.va_fileid, flagbuf); 457 type = VT.va_mode & S_IFMT; 458 if (S_ISCHR(VT.va_mode) || S_ISBLK(VT.va_mode)) 459 if (usenumflag || ((name = devname(VT.va_rdev, type)) == NULL)) 460 (void)printf(" %2d,%-2d", 461 major(VT.va_rdev), minor(VT.va_rdev)); 462 else 463 (void)printf(" %7s", name); 464 else 465 (void)printf(" %7qd", np->n_size); 466 return (0); 467 } 468 469 /* 470 * Given a pointer to a mount structure in kernel space, 471 * read it in and return a usable pointer to it. 472 */ 473 struct mount * 474 getmnt(maddr) 475 struct mount *maddr; 476 { 477 static struct mtab { 478 struct mtab *next; 479 struct mount *maddr; 480 struct mount mount; 481 } *mhead = NULL; 482 register struct mtab *mt; 483 484 for (mt = mhead; mt != NULL; mt = mt->next) 485 if (maddr == mt->maddr) 486 return (&mt->mount); 487 if ((mt = malloc(sizeof(struct mtab))) == NULL) 488 err(1, NULL); 489 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 490 mt->maddr = maddr; 491 mt->next = mhead; 492 mhead = mt; 493 return (&mt->mount); 494 } 495 496 void 497 mount_print(mp) 498 struct mount *mp; 499 { 500 register int flags; 501 char *type; 502 503 #define ST mp->mnt_stat 504 (void)printf("*** MOUNT "); 505 (void)printf("%.*s %s on %s", MFSNAMELEN, ST.f_fstypename, 506 ST.f_mntfromname, ST.f_mntonname); 507 if (flags = mp->mnt_flag) { 508 char *comma = "("; 509 510 putchar(' '); 511 /* user visable flags */ 512 if (flags & MNT_RDONLY) { 513 (void)printf("%srdonly", comma); 514 flags &= ~MNT_RDONLY; 515 comma = ","; 516 } 517 if (flags & MNT_SYNCHRONOUS) { 518 (void)printf("%ssynchronous", comma); 519 flags &= ~MNT_SYNCHRONOUS; 520 comma = ","; 521 } 522 if (flags & MNT_NOEXEC) { 523 (void)printf("%snoexec", comma); 524 flags &= ~MNT_NOEXEC; 525 comma = ","; 526 } 527 if (flags & MNT_NOSUID) { 528 (void)printf("%snosuid", comma); 529 flags &= ~MNT_NOSUID; 530 comma = ","; 531 } 532 if (flags & MNT_NODEV) { 533 (void)printf("%snodev", comma); 534 flags &= ~MNT_NODEV; 535 comma = ","; 536 } 537 if (flags & MNT_UNION) { 538 (void)printf("%sunion", comma); 539 flags &= ~MNT_UNION; 540 comma = ","; 541 } 542 if (flags & MNT_ASYNC) { 543 (void)printf("%sasync", comma); 544 flags &= ~MNT_ASYNC; 545 comma = ","; 546 } 547 if (flags & MNT_NOCOREDUMP) { 548 (void)printf("%snocoredump", comma); 549 flags &= ~MNT_NOCOREDUMP; 550 comma = ","; 551 } 552 if (flags & MNT_EXRDONLY) { 553 (void)printf("%sexrdonly", comma); 554 flags &= ~MNT_EXRDONLY; 555 comma = ","; 556 } 557 if (flags & MNT_EXPORTED) { 558 (void)printf("%sexport", comma); 559 flags &= ~MNT_EXPORTED; 560 comma = ","; 561 } 562 if (flags & MNT_DEFEXPORTED) { 563 (void)printf("%sdefdexported", comma); 564 flags &= ~MNT_DEFEXPORTED; 565 comma = ","; 566 } 567 if (flags & MNT_EXPORTANON) { 568 (void)printf("%sexportanon", comma); 569 flags &= ~MNT_EXPORTANON; 570 comma = ","; 571 } 572 if (flags & MNT_EXKERB) { 573 (void)printf("%sexkerb", comma); 574 flags &= ~MNT_EXKERB; 575 comma = ","; 576 } 577 if (flags & MNT_LOCAL) { 578 (void)printf("%slocal", comma); 579 flags &= ~MNT_LOCAL; 580 comma = ","; 581 } 582 if (flags & MNT_QUOTA) { 583 (void)printf("%squota", comma); 584 flags &= ~MNT_QUOTA; 585 comma = ","; 586 } 587 if (flags & MNT_ROOTFS) { 588 (void)printf("%srootfs", comma); 589 flags &= ~MNT_ROOTFS; 590 comma = ","; 591 } 592 /* filesystem control flags */ 593 if (flags & MNT_UPDATE) { 594 (void)printf("%supdate", comma); 595 flags &= ~MNT_UPDATE; 596 comma = ","; 597 } 598 if (flags & MNT_MLOCK) { 599 (void)printf("%slock", comma); 600 flags &= ~MNT_MLOCK; 601 comma = ","; 602 } 603 if (flags & MNT_MWAIT) { 604 (void)printf("%swait", comma); 605 flags &= ~MNT_MWAIT; 606 comma = ","; 607 } 608 if (flags & MNT_MPBUSY) { 609 (void)printf("%sbusy", comma); 610 flags &= ~MNT_MPBUSY; 611 comma = ","; 612 } 613 if (flags & MNT_MPWANT) { 614 (void)printf("%swant", comma); 615 flags &= ~MNT_MPWANT; 616 comma = ","; 617 } 618 if (flags & MNT_UNMOUNT) { 619 (void)printf("%sunmount", comma); 620 flags &= ~MNT_UNMOUNT; 621 comma = ","; 622 } 623 if (flags) 624 (void)printf("%sunknown_flags:%x", comma, flags); 625 (void)printf(")"); 626 } 627 (void)printf("\n"); 628 #undef ST 629 } 630 631 struct e_vnode * 632 loadvnodes(avnodes) 633 int *avnodes; 634 { 635 int mib[2]; 636 size_t copysize; 637 struct e_vnode *vnodebase; 638 639 if (memf != NULL) { 640 /* 641 * do it by hand 642 */ 643 return (kinfo_vnodes(avnodes)); 644 } 645 mib[0] = CTL_KERN; 646 mib[1] = KERN_VNODE; 647 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 648 err(1, "sysctl: KERN_VNODE"); 649 if ((vnodebase = malloc(copysize)) == NULL) 650 err(1, NULL); 651 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 652 err(1, "sysctl: KERN_VNODE"); 653 if (copysize % sizeof(struct e_vnode)) 654 errx(1, "vnode size mismatch"); 655 *avnodes = copysize / sizeof(struct e_vnode); 656 657 return (vnodebase); 658 } 659 660 /* 661 * simulate what a running kernel does in in kinfo_vnode 662 */ 663 struct e_vnode * 664 kinfo_vnodes(avnodes) 665 int *avnodes; 666 { 667 struct mntlist mountlist; 668 struct mount *mp, mount; 669 struct vnode *vp, vnode; 670 char *vbuf, *evbuf, *bp; 671 int num, numvnodes; 672 673 #define VPTRSZ sizeof(struct vnode *) 674 #define VNODESZ sizeof(struct vnode) 675 676 KGET(V_NUMV, numvnodes); 677 if ((vbuf = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 678 err(1, NULL); 679 bp = vbuf; 680 evbuf = vbuf + (numvnodes + 20) * (VPTRSZ + VNODESZ); 681 KGET(V_MOUNTLIST, mountlist); 682 for (num = 0, mp = mountlist.cqh_first; ; mp = mount.mnt_list.cqe_next) { 683 KGET2(mp, &mount, sizeof(mount), "mount entry"); 684 for (vp = mount.mnt_vnodelist.lh_first; 685 vp != NULL; vp = vnode.v_mntvnodes.le_next) { 686 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 687 if ((bp + VPTRSZ + VNODESZ) > evbuf) 688 /* XXX - should realloc */ 689 errx(1, "no more room for vnodes"); 690 memmove(bp, &vp, VPTRSZ); 691 bp += VPTRSZ; 692 memmove(bp, &vnode, VNODESZ); 693 bp += VNODESZ; 694 num++; 695 } 696 if (mp == mountlist.cqh_last) 697 break; 698 } 699 *avnodes = num; 700 return ((struct e_vnode *)vbuf); 701 } 702 703 char hdr[]=" LINE RAW CAN OUT HWT LWT COL STATE SESS PGID DISC\n"; 704 705 void 706 ttymode() 707 { 708 int ntty, i; 709 struct ttylist_head tty_head; 710 struct tty *tp, tty; 711 712 KGET(TTY_NTTY, ntty); 713 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 714 KGET(TTY_TTYLIST, tty_head); 715 (void)printf(hdr); 716 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 717 KGET2(tp, &tty, sizeof tty, "tty struct"); 718 ttyprt(&tty); 719 } 720 } 721 722 struct { 723 int flag; 724 char val; 725 } ttystates[] = { 726 { TS_WOPEN, 'W'}, 727 { TS_ISOPEN, 'O'}, 728 { TS_CARR_ON, 'C'}, 729 { TS_TIMEOUT, 'T'}, 730 { TS_FLUSH, 'F'}, 731 { TS_BUSY, 'B'}, 732 { TS_ASLEEP, 'A'}, 733 { TS_XCLUDE, 'X'}, 734 { TS_TTSTOP, 'S'}, 735 { TS_TBLOCK, 'K'}, 736 { TS_ASYNC, 'Y'}, 737 { TS_BKSL, 'D'}, 738 { TS_ERASE, 'E'}, 739 { TS_LNCH, 'L'}, 740 { TS_TYPEN, 'P'}, 741 { TS_CNTTB, 'N'}, 742 { 0, '\0'}, 743 }; 744 745 void 746 ttyprt(tp) 747 register struct tty *tp; 748 { 749 register int i, j; 750 pid_t pgid; 751 char *name, state[20]; 752 753 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) 754 (void)printf("0x%3x:%1x ", major(tp->t_dev), minor(tp->t_dev)); 755 else 756 (void)printf("%-7s ", name); 757 (void)printf("%3d %4d ", tp->t_rawq.c_cc, tp->t_canq.c_cc); 758 (void)printf("%4d %4d %3d %6d ", tp->t_outq.c_cc, 759 tp->t_hiwat, tp->t_lowat, tp->t_column); 760 for (i = j = 0; ttystates[i].flag; i++) 761 if (tp->t_state&ttystates[i].flag) 762 state[j++] = ttystates[i].val; 763 if (j == 0) 764 state[j++] = '-'; 765 state[j] = '\0'; 766 (void)printf("%-6s %8x", state, (u_long)tp->t_session & ~KERNBASE); 767 pgid = 0; 768 if (tp->t_pgrp != NULL) 769 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 770 (void)printf("%6d ", pgid); 771 switch (tp->t_line) { 772 case TTYDISC: 773 (void)printf("term\n"); 774 break; 775 case TABLDISC: 776 (void)printf("tab\n"); 777 break; 778 case SLIPDISC: 779 (void)printf("slip\n"); 780 break; 781 case PPPDISC: 782 (void)printf("ppp\n"); 783 break; 784 case STRIPDISC: 785 (void)printf("strip\n"); 786 break; 787 default: 788 (void)printf("%d\n", tp->t_line); 789 break; 790 } 791 } 792 793 void 794 filemode() 795 { 796 register struct file *fp; 797 struct file *addr; 798 char *buf, flagbuf[16], *fbp; 799 int len, maxfile, nfile; 800 static char *dtypes[] = { "???", "inode", "socket" }; 801 802 KGET(FNL_MAXFILE, maxfile); 803 if (totalflag) { 804 KGET(FNL_NFILE, nfile); 805 (void)printf("%3d/%3d files\n", nfile, maxfile); 806 return; 807 } 808 if (getfiles(&buf, &len) == -1) 809 return; 810 /* 811 * Getfiles returns in malloc'd memory a pointer to the first file 812 * structure, and then an array of file structs (whose addresses are 813 * derivable from the previous entry). 814 */ 815 addr = ((struct filelist *)buf)->lh_first; 816 fp = (struct file *)(buf + sizeof(struct filelist)); 817 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 818 819 (void)printf("%d/%d open files\n", nfile, maxfile); 820 (void)printf(" LOC TYPE FLG CNT MSG DATA OFFSET\n"); 821 for (; (char *)fp < buf + len; addr = fp->f_list.le_next, fp++) { 822 if ((unsigned)fp->f_type > DTYPE_SOCKET) 823 continue; 824 (void)printf("%x ", addr); 825 (void)printf("%-8.8s", dtypes[fp->f_type]); 826 fbp = flagbuf; 827 if (fp->f_flag & FREAD) 828 *fbp++ = 'R'; 829 if (fp->f_flag & FWRITE) 830 *fbp++ = 'W'; 831 if (fp->f_flag & FAPPEND) 832 *fbp++ = 'A'; 833 #ifdef FSHLOCK /* currently gone */ 834 if (fp->f_flag & FSHLOCK) 835 *fbp++ = 'S'; 836 if (fp->f_flag & FEXLOCK) 837 *fbp++ = 'X'; 838 #endif 839 if (fp->f_flag & FASYNC) 840 *fbp++ = 'I'; 841 *fbp = '\0'; 842 (void)printf("%6s %3d", flagbuf, fp->f_count); 843 (void)printf(" %3d", fp->f_msgcount); 844 (void)printf(" %8.1x", fp->f_data); 845 if (fp->f_offset < 0) 846 (void)printf(" %qx\n", fp->f_offset); 847 else 848 (void)printf(" %qd\n", fp->f_offset); 849 } 850 free(buf); 851 } 852 853 int 854 getfiles(abuf, alen) 855 char **abuf; 856 int *alen; 857 { 858 size_t len; 859 int mib[2]; 860 char *buf; 861 862 /* 863 * XXX 864 * Add emulation of KINFO_FILE here. 865 */ 866 if (memf != NULL) 867 errx(1, "files on dead kernel, not implemented\n"); 868 869 mib[0] = CTL_KERN; 870 mib[1] = KERN_FILE; 871 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 872 warn("sysctl: KERN_FILE"); 873 return (-1); 874 } 875 if ((buf = malloc(len)) == NULL) 876 err(1, NULL); 877 if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) { 878 warn("sysctl: KERN_FILE"); 879 return (-1); 880 } 881 *abuf = buf; 882 *alen = len; 883 return (0); 884 } 885 886 /* 887 * swapmode is based on a program called swapinfo written 888 * by Kevin Lahey <kml (at) rokkaku.atl.ga.us>. 889 */ 890 void 891 swapmode() 892 { 893 char *header; 894 int hlen, nswap, nswdev, dmmax, nswapmap, niswap, niswdev; 895 int s, e, div, i, l, avail, nfree, npfree, used; 896 struct swdevt *sw; 897 long blocksize, *perdev; 898 struct map *swapmap, *kswapmap; 899 struct mapent *mp; 900 901 KGET(VM_NSWAP, nswap); 902 KGET(VM_NSWDEV, nswdev); 903 KGET(VM_DMMAX, dmmax); 904 KGET(VM_NSWAPMAP, nswapmap); 905 KGET(VM_SWAPMAP, kswapmap); /* kernel `swapmap' is a pointer */ 906 if ((sw = malloc(nswdev * sizeof(*sw))) == NULL || 907 (perdev = malloc(nswdev * sizeof(*perdev))) == NULL || 908 (mp = malloc(nswapmap * sizeof(*mp))) == NULL) 909 err(1, "malloc"); 910 KGET1(VM_SWDEVT, sw, nswdev * sizeof(*sw), "swdevt"); 911 KGET2((long)kswapmap, mp, nswapmap * sizeof(*mp), "swapmap"); 912 913 /* Supports sequential swap */ 914 if (nl[VM_NISWAP].n_value != 0) { 915 KGET(VM_NISWAP, niswap); 916 KGET(VM_NISWDEV, niswdev); 917 } else { 918 niswap = nswap; 919 niswdev = nswdev; 920 } 921 922 /* First entry in map is `struct map'; rest are mapent's. */ 923 swapmap = (struct map *)mp; 924 if (nswapmap != swapmap->m_limit - (struct mapent *)kswapmap) 925 errx(1, "panic: nswapmap goof"); 926 927 /* Count up swap space. */ 928 nfree = 0; 929 memset(perdev, 0, nswdev * sizeof(*perdev)); 930 for (mp++; mp->m_addr != 0; mp++) { 931 s = mp->m_addr; /* start of swap region */ 932 e = mp->m_addr + mp->m_size; /* end of region */ 933 nfree += mp->m_size; 934 935 /* 936 * Swap space is split up among the configured disks. 937 * 938 * For interleaved swap devices, the first dmmax blocks 939 * of swap space some from the first disk, the next dmmax 940 * blocks from the next, and so on up to niswap blocks. 941 * 942 * Sequential swap devices follow the interleaved devices 943 * (i.e. blocks starting at niswap) in the order in which 944 * they appear in the swdev table. The size of each device 945 * will be a multiple of dmmax. 946 * 947 * The list of free space joins adjacent free blocks, 948 * ignoring device boundries. If we want to keep track 949 * of this information per device, we'll just have to 950 * extract it ourselves. We know that dmmax-sized chunks 951 * cannot span device boundaries (interleaved or sequential) 952 * so we loop over such chunks assigning them to devices. 953 */ 954 i = -1; 955 while (s < e) { /* XXX this is inefficient */ 956 int bound = roundup(s+1, dmmax); 957 958 if (bound > e) 959 bound = e; 960 if (bound <= niswap) { 961 /* Interleaved swap chunk. */ 962 if (i == -1) 963 i = (s / dmmax) % niswdev; 964 perdev[i] += bound - s; 965 if (++i >= niswdev) 966 i = 0; 967 } else { 968 /* Sequential swap chunk. */ 969 if (i < niswdev) { 970 i = niswdev; 971 l = niswap + sw[i].sw_nblks; 972 } 973 while (s >= l) { 974 /* XXX don't die on bogus blocks */ 975 if (i == nswdev-1) 976 break; 977 l += sw[++i].sw_nblks; 978 } 979 perdev[i] += bound - s; 980 } 981 s = bound; 982 } 983 } 984 985 if (kflag) { 986 header = "1K-blocks"; 987 blocksize = 1024; 988 hlen = strlen(header); 989 } else 990 header = getbsize(&hlen, &blocksize); 991 if (!totalflag) 992 (void)printf("%-11s %*s %8s %8s %8s %s\n", 993 "Device", hlen, header, 994 "Used", "Avail", "Capacity", "Type"); 995 div = blocksize / 512; 996 avail = npfree = 0; 997 for (i = 0; i < nswdev; i++) { 998 int xsize, xfree; 999 1000 /* 1001 * Don't report statistics for partitions which have not 1002 * yet been activated via swapon(8). 1003 */ 1004 if (!(sw[i].sw_flags & SW_FREED)) 1005 continue; 1006 1007 if (!totalflag) 1008 (void)printf("/dev/%-6s %*d ", 1009 devname(sw[i].sw_dev, S_IFBLK), 1010 hlen, sw[i].sw_nblks / div); 1011 1012 xsize = sw[i].sw_nblks; 1013 xfree = perdev[i]; 1014 used = xsize - xfree; 1015 npfree++; 1016 avail += xsize; 1017 if (totalflag) 1018 continue; 1019 (void)printf("%8d %8d %5.0f%% %s\n", 1020 used / div, xfree / div, 1021 (double)used / (double)xsize * 100.0, 1022 (sw[i].sw_flags & SW_SEQUENTIAL) ? 1023 "Sequential" : "Interleaved"); 1024 } 1025 1026 /* 1027 * If only one partition has been set up via swapon(8), we don't 1028 * need to bother with totals. 1029 */ 1030 used = avail - nfree; 1031 if (totalflag) { 1032 (void)printf("%dM/%dM swap space\n", used / 2048, avail / 2048); 1033 return; 1034 } 1035 if (npfree > 1) { 1036 (void)printf("%-11s %*d %8d %8d %5.0f%%\n", 1037 "Total", hlen, avail / div, used / div, nfree / div, 1038 (double)used / (double)avail * 100.0); 1039 } 1040 } 1041 1042 void 1043 usage() 1044 { 1045 (void)fprintf(stderr, 1046 "usage: pstat [-T|-f|-s|-t|-v] [-kn] [-M core] [-N system]\n"); 1047 exit(1); 1048 } 1049
Indexes created Wed Sep 24 14:09:57 GMT 2025