1 /*- 2 * Copyright (c) 1980, 1991, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 static char copyright[] = 10 "@(#) Copyright (c) 1980, 1991, 1993, 1994\n\ 11 The Regents of the University of California. All rights reserved.\n"; 12 #endif /* not lint */ 13 14 #ifndef lint 15 static char sccsid[] = "@(#)pstat.c 8.10 (Berkeley) 04/28/94"; 16 #endif /* not lint */ 17 18 #include <sys/param.h> 19 #include <sys/time.h> 20 #include <sys/vnode.h> 21 #include <sys/map.h> 22 #include <sys/ucred.h> 23 #define KERNEL 24 #include <sys/file.h> 25 #include <ufs/ufs/quota.h> 26 #include <ufs/ufs/inode.h> 27 #define NFS 28 #include <sys/mount.h> 29 #undef NFS 30 #include <sys/uio.h> 31 #include <sys/namei.h> 32 #include <miscfs/union/union.h> 33 #undef KERNEL 34 #include <sys/stat.h> 35 #include <nfs/nfsnode.h> 36 #include <sys/ioctl.h> 37 #include <sys/tty.h> 38 #include <sys/conf.h> 39 40 #include <sys/sysctl.h> 41 42 #include <err.h> 43 #include <kvm.h> 44 #include <limits.h> 45 #include <nlist.h> 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <string.h> 49 #include <unistd.h> 50 51 struct nlist nl[] = { 52 #define VM_SWAPMAP 0 53 { "_swapmap" }, /* list of free swap areas */ 54 #define VM_NSWAPMAP 1 55 { "_nswapmap" },/* size of the swap map */ 56 #define VM_SWDEVT 2 57 { "_swdevt" }, /* list of swap devices and sizes */ 58 #define VM_NSWAP 3 59 { "_nswap" }, /* size of largest swap device */ 60 #define VM_NSWDEV 4 61 { "_nswdev" }, /* number of swap devices */ 62 #define VM_DMMAX 5 63 { "_dmmax" }, /* maximum size of a swap block */ 64 #define V_MOUNTLIST 6 65 { "_mountlist" }, /* address of head of mount list. */ 66 #define V_NUMV 7 67 { "_numvnodes" }, 68 #define FNL_NFILE 8 69 {"_nfiles"}, 70 #define FNL_MAXFILE 9 71 {"_maxfiles"}, 72 #define NLMANDATORY FNL_MAXFILE /* names up to here are mandatory */ 73 #define VM_NISWAP NLMANDATORY + 1 74 { "_niswap" }, 75 #define VM_NISWDEV NLMANDATORY + 2 76 { "_niswdev" }, 77 #define SCONS NLMANDATORY + 3 78 { "_cons" }, 79 #define SPTY NLMANDATORY + 4 80 { "_pt_tty" }, 81 #define SNPTY NLMANDATORY + 5 82 { "_npty" }, 83 84 #ifdef hp300 85 #define SDCA (SNPTY+1) 86 { "_dca_tty" }, 87 #define SNDCA (SNPTY+2) 88 { "_ndca" }, 89 #define SDCM (SNPTY+3) 90 { "_dcm_tty" }, 91 #define SNDCM (SNPTY+4) 92 { "_ndcm" }, 93 #define SDCL (SNPTY+5) 94 { "_dcl_tty" }, 95 #define SNDCL (SNPTY+6) 96 { "_ndcl" }, 97 #define SITE (SNPTY+7) 98 { "_ite_tty" }, 99 #define SNITE (SNPTY+8) 100 { "_nite" }, 101 #endif 102 103 #ifdef mips 104 #define SDC (SNPTY+1) 105 { "_dc_tty" }, 106 #define SNDC (SNPTY+2) 107 { "_dc_cnt" }, 108 #endif 109 110 { "" } 111 }; 112 113 int usenumflag; 114 int totalflag; 115 char *nlistf = NULL; 116 char *memf = NULL; 117 kvm_t *kd; 118 119 const char *mountname[] = INITMOUNTNAMES; 120 struct { 121 int m_flag; 122 const char *m_name; 123 } mnt_flags[] = { 124 { MNT_RDONLY, "rdonly" }, 125 { MNT_SYNCHRONOUS, "sync" }, 126 { MNT_NOEXEC, "noexec" }, 127 { MNT_NOSUID, "nosuid" }, 128 { MNT_NODEV, "nodev" }, 129 { MNT_UNION, "union" }, 130 { MNT_ASYNC, "async" }, 131 { MNT_EXRDONLY, "exrdonly" }, 132 { MNT_EXPORTED, "exported" }, 133 { MNT_DEFEXPORTED, "defexported" }, 134 { MNT_EXPORTANON, "exportanon" }, 135 { MNT_EXKERB, "exkerb" }, 136 { MNT_LOCAL, "local" }, 137 { MNT_QUOTA, "quota" }, 138 { MNT_ROOTFS, "rootfs" }, 139 { MNT_USER, "user" }, 140 { MNT_UPDATE, "update" }, 141 { MNT_DELEXPORT }, 142 { MNT_UPDATE, "update" }, 143 { MNT_DELEXPORT, "delexport" }, 144 { MNT_RELOAD, "reload" }, 145 { MNT_FORCE, "force" }, 146 { MNT_MLOCK, "mlock" }, 147 { MNT_WAIT, "wait" }, 148 { MNT_MPBUSY, "mpbusy" }, 149 { MNT_MPWANT, "mpwant" }, 150 { MNT_UNMOUNT, "unmount" }, 151 { MNT_WANTRDWR, "wantrdwr" }, 152 { 0 } 153 }; 154 155 156 #define SVAR(var) __STRING(var) /* to force expansion */ 157 #define KGET(idx, var) \ 158 KGET1(idx, &var, sizeof(var), SVAR(var)) 159 #define KGET1(idx, p, s, msg) \ 160 KGET2(nl[idx].n_value, p, s, msg) 161 #define KGET2(addr, p, s, msg) \ 162 if (kvm_read(kd, (u_long)(addr), p, s) != s) \ 163 warnx("cannot read %s: %s", msg, kvm_geterr(kd)) 164 #define KGETRET(addr, p, s, msg) \ 165 if (kvm_read(kd, (u_long)(addr), p, s) != s) { \ 166 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 167 return (0); \ 168 } 169 170 void filemode __P((void)); 171 int getfiles __P((char **, int *)); 172 struct mount * 173 getmnt __P((struct mount *)); 174 struct e_vnode * 175 kinfo_vnodes __P((int *)); 176 struct e_vnode * 177 loadvnodes __P((int *)); 178 void mount_print __P((struct mount *)); 179 void nfs_header __P((void)); 180 int nfs_print __P((struct vnode *)); 181 void swapmode __P((void)); 182 void ttymode __P((void)); 183 void ttyprt __P((struct tty *, int)); 184 void ttytype __P((struct tty *, char *, int, int)); 185 void ufs_header __P((void)); 186 int ufs_print __P((struct vnode *)); 187 void union_header __P((void)); 188 int union_print __P((struct vnode *)); 189 void usage __P((void)); 190 void vnode_header __P((void)); 191 void vnode_print __P((struct vnode *, struct vnode *)); 192 void vnodemode __P((void)); 193 194 int 195 main(argc, argv) 196 int argc; 197 char *argv[]; 198 { 199 extern char *optarg; 200 extern int optind; 201 int ch, i, quit, ret; 202 int fileflag, swapflag, ttyflag, vnodeflag; 203 char buf[_POSIX2_LINE_MAX]; 204 205 fileflag = swapflag = ttyflag = vnodeflag = 0; 206 while ((ch = getopt(argc, argv, "TM:N:finstv")) != EOF) 207 switch (ch) { 208 case 'f': 209 fileflag = 1; 210 break; 211 case 'M': 212 memf = optarg; 213 break; 214 case 'N': 215 nlistf = optarg; 216 break; 217 case 'n': 218 usenumflag = 1; 219 break; 220 case 's': 221 swapflag = 1; 222 break; 223 case 'T': 224 totalflag = 1; 225 break; 226 case 't': 227 ttyflag = 1; 228 break; 229 case 'v': 230 case 'i': /* Backward compatibility. */ 231 vnodeflag = 1; 232 break; 233 default: 234 usage(); 235 } 236 argc -= optind; 237 argv += optind; 238 239 /* 240 * Discard setgid privileges if not the running kernel so that bad 241 * guys can't print interesting stuff from kernel memory. 242 */ 243 if (nlistf != NULL || memf != NULL) 244 (void)setgid(getgid()); 245 246 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0) 247 errx(1, "kvm_openfiles: %s", buf); 248 if ((ret = kvm_nlist(kd, nl)) != 0) { 249 if (ret == -1) 250 errx(1, "kvm_nlist: %s", kvm_geterr(kd)); 251 for (i = quit = 0; i <= NLMANDATORY; i++) 252 if (!nl[i].n_value) { 253 quit = 1; 254 warnx("undefined symbol: %s\n", nl[i].n_name); 255 } 256 if (quit) 257 exit(1); 258 } 259 if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag)) 260 usage(); 261 if (fileflag || totalflag) 262 filemode(); 263 if (vnodeflag || totalflag) 264 vnodemode(); 265 if (ttyflag) 266 ttymode(); 267 if (swapflag || totalflag) 268 swapmode(); 269 exit (0); 270 } 271 272 struct e_vnode { 273 struct vnode *avnode; 274 struct vnode vnode; 275 }; 276 277 void 278 vnodemode() 279 { 280 struct e_vnode *e_vnodebase, *endvnode, *evp; 281 struct vnode *vp; 282 struct mount *maddr, *mp; 283 int numvnodes; 284 285 e_vnodebase = loadvnodes(&numvnodes); 286 if (totalflag) { 287 (void)printf("%7d vnodes\n", numvnodes); 288 return; 289 } 290 endvnode = e_vnodebase + numvnodes; 291 (void)printf("%d active vnodes\n", numvnodes); 292 293 294 #define ST mp->mnt_stat 295 maddr = NULL; 296 for (evp = e_vnodebase; evp < endvnode; evp++) { 297 vp = &evp->vnode; 298 if (vp->v_mount != maddr) { 299 /* 300 * New filesystem 301 */ 302 if ((mp = getmnt(vp->v_mount)) == NULL) 303 continue; 304 maddr = vp->v_mount; 305 mount_print(mp); 306 vnode_header(); 307 switch (ST.f_type) { 308 case MOUNT_UFS: 309 case MOUNT_MFS: 310 ufs_header(); 311 break; 312 case MOUNT_NFS: 313 nfs_header(); 314 break; 315 case MOUNT_UNION: 316 union_header(); 317 break; 318 case MOUNT_NONE: 319 case MOUNT_MSDOS: 320 default: 321 break; 322 } 323 (void)printf("\n"); 324 } 325 vnode_print(evp->avnode, vp); 326 switch (ST.f_type) { 327 case MOUNT_UFS: 328 case MOUNT_MFS: 329 ufs_print(vp); 330 break; 331 case MOUNT_NFS: 332 nfs_print(vp); 333 break; 334 case MOUNT_UNION: 335 union_print(vp); 336 break; 337 case MOUNT_NONE: 338 case MOUNT_MSDOS: 339 default: 340 break; 341 } 342 (void)printf("\n"); 343 } 344 free(e_vnodebase); 345 } 346 347 void 348 vnode_header() 349 { 350 (void)printf("ADDR TYP VFLAG USE HOLD"); 351 } 352 353 void 354 vnode_print(avnode, vp) 355 struct vnode *avnode; 356 struct vnode *vp; 357 { 358 char *type, flags[16]; 359 char *fp = flags; 360 int flag; 361 362 /* 363 * set type 364 */ 365 switch (vp->v_type) { 366 case VNON: 367 type = "non"; break; 368 case VREG: 369 type = "reg"; break; 370 case VDIR: 371 type = "dir"; break; 372 case VBLK: 373 type = "blk"; break; 374 case VCHR: 375 type = "chr"; break; 376 case VLNK: 377 type = "lnk"; break; 378 case VSOCK: 379 type = "soc"; break; 380 case VFIFO: 381 type = "fif"; break; 382 case VBAD: 383 type = "bad"; break; 384 default: 385 type = "unk"; break; 386 } 387 /* 388 * gather flags 389 */ 390 flag = vp->v_flag; 391 if (flag & VROOT) 392 *fp++ = 'R'; 393 if (flag & VTEXT) 394 *fp++ = 'T'; 395 if (flag & VSYSTEM) 396 *fp++ = 'S'; 397 if (flag & VXLOCK) 398 *fp++ = 'L'; 399 if (flag & VXWANT) 400 *fp++ = 'W'; 401 if (flag & VBWAIT) 402 *fp++ = 'B'; 403 if (flag & VALIASED) 404 *fp++ = 'A'; 405 if (flag == 0) 406 *fp++ = '-'; 407 *fp = '\0'; 408 (void)printf("%8x %s %5s %4d %4d", 409 avnode, type, flags, vp->v_usecount, vp->v_holdcnt); 410 } 411 412 void 413 ufs_header() 414 { 415 (void)printf(" FILEID IFLAG RDEV|SZ"); 416 } 417 418 int 419 ufs_print(vp) 420 struct vnode *vp; 421 { 422 int flag; 423 struct inode inode, *ip = &inode; 424 char flagbuf[16], *flags = flagbuf; 425 char *name; 426 mode_t type; 427 428 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 429 flag = ip->i_flag; 430 if (flag & IN_LOCKED) 431 *flags++ = 'L'; 432 if (flag & IN_WANTED) 433 *flags++ = 'W'; 434 if (flag & IN_RENAME) 435 *flags++ = 'R'; 436 if (flag & IN_UPDATE) 437 *flags++ = 'U'; 438 if (flag & IN_ACCESS) 439 *flags++ = 'A'; 440 if (flag & IN_CHANGE) 441 *flags++ = 'C'; 442 if (flag & IN_MODIFIED) 443 *flags++ = 'M'; 444 if (flag & IN_SHLOCK) 445 *flags++ = 'S'; 446 if (flag & IN_EXLOCK) 447 *flags++ = 'E'; 448 if (flag & IN_LWAIT) 449 *flags++ = 'Z'; 450 if (flag == 0) 451 *flags++ = '-'; 452 *flags = '\0'; 453 454 (void)printf(" %6d %5s", ip->i_number, flagbuf); 455 type = ip->i_mode & S_IFMT; 456 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) 457 if (usenumflag || ((name = devname(ip->i_rdev, type)) == NULL)) 458 (void)printf(" %2d,%-2d", 459 major(ip->i_rdev), minor(ip->i_rdev)); 460 else 461 (void)printf(" %7s", name); 462 else 463 (void)printf(" %7qd", ip->i_size); 464 return (0); 465 } 466 467 void 468 nfs_header() 469 { 470 (void)printf(" FILEID NFLAG RDEV|SZ"); 471 } 472 473 int 474 nfs_print(vp) 475 struct vnode *vp; 476 { 477 struct nfsnode nfsnode, *np = &nfsnode; 478 char flagbuf[16], *flags = flagbuf; 479 int flag; 480 char *name; 481 mode_t type; 482 483 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 484 flag = np->n_flag; 485 if (flag & NFLUSHWANT) 486 *flags++ = 'W'; 487 if (flag & NFLUSHINPROG) 488 *flags++ = 'P'; 489 if (flag & NMODIFIED) 490 *flags++ = 'M'; 491 if (flag & NWRITEERR) 492 *flags++ = 'E'; 493 if (flag & NQNFSNONCACHE) 494 *flags++ = 'X'; 495 if (flag & NQNFSWRITE) 496 *flags++ = 'O'; 497 if (flag & NQNFSEVICTED) 498 *flags++ = 'G'; 499 if (flag == 0) 500 *flags++ = '-'; 501 *flags = '\0'; 502 503 #define VT np->n_vattr 504 (void)printf(" %6d %5s", VT.va_fileid, flagbuf); 505 type = VT.va_mode & S_IFMT; 506 if (S_ISCHR(VT.va_mode) || S_ISBLK(VT.va_mode)) 507 if (usenumflag || ((name = devname(VT.va_rdev, type)) == NULL)) 508 (void)printf(" %2d,%-2d", 509 major(VT.va_rdev), minor(VT.va_rdev)); 510 else 511 (void)printf(" %7s", name); 512 else 513 (void)printf(" %7qd", np->n_size); 514 return (0); 515 } 516 517 void 518 union_header() 519 { 520 (void)printf(" UPPER LOWER"); 521 } 522 523 int 524 union_print(vp) 525 struct vnode *vp; 526 { 527 struct union_node unode, *up = &unode; 528 529 KGETRET(VTOUNION(vp), &unode, sizeof(unode), "vnode's unode"); 530 531 (void)printf(" %8x %8x", up->un_uppervp, up->un_lowervp); 532 return (0); 533 } 534 535 /* 536 * Given a pointer to a mount structure in kernel space, 537 * read it in and return a usable pointer to it. 538 */ 539 struct mount * 540 getmnt(maddr) 541 struct mount *maddr; 542 { 543 static struct mtab { 544 struct mtab *next; 545 struct mount *maddr; 546 struct mount mount; 547 } *mhead = NULL; 548 struct mtab *mt; 549 550 for (mt = mhead; mt != NULL; mt = mt->next) 551 if (maddr == mt->maddr) 552 return (&mt->mount); 553 if ((mt = malloc(sizeof(struct mtab))) == NULL) 554 err(1, NULL); 555 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 556 mt->maddr = maddr; 557 mt->next = mhead; 558 mhead = mt; 559 return (&mt->mount); 560 } 561 562 void 563 mount_print(mp) 564 struct mount *mp; 565 { 566 int flags; 567 const char *type; 568 569 #define ST mp->mnt_stat 570 (void)printf("*** MOUNT "); 571 if (ST.f_type >= sizeof(mountname)/sizeof(mountname[0])) 572 type = "unknown"; 573 else 574 type = mountname[ST.f_type]; 575 (void)printf("%s %s on %s", type, ST.f_mntfromname, ST.f_mntonname); 576 if (flags = mp->mnt_flag) { 577 int i; 578 const char *sep = " ("; 579 580 for (i = 0; mnt_flags[i].m_flag; i++) { 581 if (flags & mnt_flags[i].m_flag) { 582 (void)printf("%s%s", sep, mnt_flags[i].m_name); 583 flags &= ~mnt_flags[i].m_flag; 584 sep = ","; 585 } 586 } 587 if (flags) 588 (void)printf("%sunknown_flags:%x", sep, flags); 589 (void)printf(")"); 590 } 591 (void)printf("\n"); 592 #undef ST 593 } 594 595 struct e_vnode * 596 loadvnodes(avnodes) 597 int *avnodes; 598 { 599 int mib[2]; 600 size_t copysize; 601 struct e_vnode *vnodebase; 602 603 if (memf != NULL) { 604 /* 605 * do it by hand 606 */ 607 return (kinfo_vnodes(avnodes)); 608 } 609 mib[0] = CTL_KERN; 610 mib[1] = KERN_VNODE; 611 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 612 err(1, "sysctl: KERN_VNODE"); 613 if ((vnodebase = malloc(copysize)) == NULL) 614 err(1, NULL); 615 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 616 err(1, "sysctl: KERN_VNODE"); 617 if (copysize % sizeof(struct e_vnode)) 618 errx(1, "vnode size mismatch"); 619 *avnodes = copysize / sizeof(struct e_vnode); 620 621 return (vnodebase); 622 } 623 624 /* 625 * simulate what a running kernel does in in kinfo_vnode 626 */ 627 struct e_vnode * 628 kinfo_vnodes(avnodes) 629 int *avnodes; 630 { 631 struct mntlist mountlist; 632 struct mount *mp, mount; 633 struct vnode *vp, vnode; 634 char *vbuf, *evbuf, *bp; 635 int num, numvnodes; 636 637 #define VPTRSZ sizeof(struct vnode *) 638 #define VNODESZ sizeof(struct vnode) 639 640 KGET(V_NUMV, numvnodes); 641 if ((vbuf = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 642 err(1, NULL); 643 bp = vbuf; 644 evbuf = vbuf + (numvnodes + 20) * (VPTRSZ + VNODESZ); 645 KGET(V_MOUNTLIST, mountlist); 646 for (num = 0, mp = mountlist.tqh_first; 647 mp != NULL; mp = mp->mnt_list.tqe_next) { 648 KGET2(mp, &mount, sizeof(mount), "mount entry"); 649 for (vp = mount.mnt_vnodelist.lh_first; 650 vp != NULL; vp = vp->v_mntvnodes.le_next) { 651 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 652 if ((bp + VPTRSZ + VNODESZ) > evbuf) 653 /* XXX - should realloc */ 654 errx(1, "no more room for vnodes"); 655 memmove(bp, &vp, VPTRSZ); 656 bp += VPTRSZ; 657 memmove(bp, &vnode, VNODESZ); 658 bp += VNODESZ; 659 num++; 660 } 661 } 662 *avnodes = num; 663 return ((struct e_vnode *)vbuf); 664 } 665 666 char hdr[]=" LINE RAW CAN OUT HWT LWT COL STATE SESS PGID DISC\n"; 667 int ttyspace = 128; 668 669 void 670 ttymode() 671 { 672 struct tty *tty; 673 674 if ((tty = malloc(ttyspace * sizeof(*tty))) == NULL) 675 err(1, NULL); 676 #ifndef hp300 677 (void)printf("1 console\n"); 678 KGET(SCONS, *tty); 679 (void)printf(hdr); 680 ttyprt(&tty[0], 0); 681 #endif 682 #ifdef vax 683 if (nl[SNQD].n_type != 0) 684 qdss(); 685 if (nl[SNDZ].n_type != 0) 686 ttytype(tty, "dz", SDZ, SNDZ); 687 if (nl[SNDH].n_type != 0) 688 ttytype(tty, "dh", SDH, SNDH); 689 if (nl[SNDMF].n_type != 0) 690 ttytype(tty, "dmf", SDMF, SNDMF); 691 if (nl[SNDHU].n_type != 0) 692 ttytype(tty, "dhu", SDHU, SNDHU); 693 if (nl[SNDMZ].n_type != 0) 694 ttytype(tty, "dmz", SDMZ, SNDMZ); 695 #endif 696 #ifdef tahoe 697 if (nl[SNVX].n_type != 0) 698 ttytype(tty, "vx", SVX, SNVX); 699 if (nl[SNMP].n_type != 0) 700 ttytype(tty, "mp", SMP, SNMP); 701 #endif 702 #ifdef hp300 703 if (nl[SNITE].n_type != 0) 704 ttytype(tty, "ite", SITE, SNITE); 705 if (nl[SNDCA].n_type != 0) 706 ttytype(tty, "dca", SDCA, SNDCA); 707 if (nl[SNDCM].n_type != 0) 708 ttytype(tty, "dcm", SDCM, SNDCM); 709 if (nl[SNDCL].n_type != 0) 710 ttytype(tty, "dcl", SDCL, SNDCL); 711 #endif 712 #ifdef mips 713 if (nl[SNDC].n_type != 0) 714 ttytype(tty, "dc", SDC, SNDC); 715 #endif 716 if (nl[SNPTY].n_type != 0) 717 ttytype(tty, "pty", SPTY, SNPTY); 718 } 719 720 void 721 ttytype(tty, name, type, number) 722 struct tty *tty; 723 char *name; 724 int type, number; 725 { 726 struct tty *tp; 727 int ntty; 728 729 if (tty == NULL) 730 return; 731 KGET(number, ntty); 732 (void)printf("%d %s %s\n", ntty, name, (ntty == 1) ? "line" : "lines"); 733 if (ntty > ttyspace) { 734 ttyspace = ntty; 735 if ((tty = realloc(tty, ttyspace * sizeof(*tty))) == 0) 736 err(1, NULL); 737 } 738 KGET1(type, tty, ntty * sizeof(struct tty), "tty structs"); 739 (void)printf(hdr); 740 for (tp = tty; tp < &tty[ntty]; tp++) 741 ttyprt(tp, tp - tty); 742 } 743 744 struct { 745 int flag; 746 char val; 747 } ttystates[] = { 748 { TS_WOPEN, 'W'}, 749 { TS_ISOPEN, 'O'}, 750 { TS_CARR_ON, 'C'}, 751 { TS_TIMEOUT, 'T'}, 752 { TS_FLUSH, 'F'}, 753 { TS_BUSY, 'B'}, 754 { TS_ASLEEP, 'A'}, 755 { TS_XCLUDE, 'X'}, 756 { TS_TTSTOP, 'S'}, 757 { TS_TBLOCK, 'K'}, 758 { TS_ASYNC, 'Y'}, 759 { TS_BKSL, 'D'}, 760 { TS_ERASE, 'E'}, 761 { TS_LNCH, 'L'}, 762 { TS_TYPEN, 'P'}, 763 { TS_CNTTB, 'N'}, 764 { 0, '\0'}, 765 }; 766 767 void 768 ttyprt(tp, line) 769 struct tty *tp; 770 int line; 771 { 772 int i, j; 773 pid_t pgid; 774 char *name, state[20]; 775 776 if (usenumflag || tp->t_dev == 0 || 777 (name = devname(tp->t_dev, S_IFCHR)) == NULL) 778 (void)printf("%7d ", line); 779 else 780 (void)printf("%7s ", name); 781 (void)printf("%2d %3d ", tp->t_rawq.c_cc, tp->t_canq.c_cc); 782 (void)printf("%3d %4d %3d %3d ", tp->t_outq.c_cc, 783 tp->t_hiwat, tp->t_lowat, tp->t_column); 784 for (i = j = 0; ttystates[i].flag; i++) 785 if (tp->t_state&ttystates[i].flag) 786 state[j++] = ttystates[i].val; 787 if (j == 0) 788 state[j++] = '-'; 789 state[j] = '\0'; 790 (void)printf("%-4s %6x", state, (u_long)tp->t_session & ~KERNBASE); 791 pgid = 0; 792 if (tp->t_pgrp != NULL) 793 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 794 (void)printf("%6d ", pgid); 795 switch (tp->t_line) { 796 case TTYDISC: 797 (void)printf("term\n"); 798 break; 799 case TABLDISC: 800 (void)printf("tab\n"); 801 break; 802 case SLIPDISC: 803 (void)printf("slip\n"); 804 break; 805 default: 806 (void)printf("%d\n", tp->t_line); 807 break; 808 } 809 } 810 811 void 812 filemode() 813 { 814 struct file *fp; 815 struct file *addr; 816 char *buf, flagbuf[16], *fbp; 817 int len, maxfile, nfile; 818 static char *dtypes[] = { "???", "inode", "socket" }; 819 820 KGET(FNL_MAXFILE, maxfile); 821 if (totalflag) { 822 KGET(FNL_NFILE, nfile); 823 (void)printf("%3d/%3d files\n", nfile, maxfile); 824 return; 825 } 826 if (getfiles(&buf, &len) == -1) 827 return; 828 /* 829 * Getfiles returns in malloc'd memory a pointer to the first file 830 * structure, and then an array of file structs (whose addresses are 831 * derivable from the previous entry). 832 */ 833 addr = *((struct file **)buf); 834 fp = (struct file *)(buf + sizeof(struct file *)); 835 nfile = (len - sizeof(struct file *)) / sizeof(struct file); 836 837 (void)printf("%d/%d open files\n", nfile, maxfile); 838 (void)printf(" LOC TYPE FLG CNT MSG DATA OFFSET\n"); 839 for (; (char *)fp < buf + len; addr = fp->f_filef, fp++) { 840 if ((unsigned)fp->f_type > DTYPE_SOCKET) 841 continue; 842 (void)printf("%x ", addr); 843 (void)printf("%-8.8s", dtypes[fp->f_type]); 844 fbp = flagbuf; 845 if (fp->f_flag & FREAD) 846 *fbp++ = 'R'; 847 if (fp->f_flag & FWRITE) 848 *fbp++ = 'W'; 849 if (fp->f_flag & FAPPEND) 850 *fbp++ = 'A'; 851 #ifdef FSHLOCK /* currently gone */ 852 if (fp->f_flag & FSHLOCK) 853 *fbp++ = 'S'; 854 if (fp->f_flag & FEXLOCK) 855 *fbp++ = 'X'; 856 #endif 857 if (fp->f_flag & FASYNC) 858 *fbp++ = 'I'; 859 *fbp = '\0'; 860 (void)printf("%6s %3d", flagbuf, fp->f_count); 861 (void)printf(" %3d", fp->f_msgcount); 862 (void)printf(" %8.1x", fp->f_data); 863 if (fp->f_offset < 0) 864 (void)printf(" %qx\n", fp->f_offset); 865 else 866 (void)printf(" %qd\n", fp->f_offset); 867 } 868 free(buf); 869 } 870 871 int 872 getfiles(abuf, alen) 873 char **abuf; 874 int *alen; 875 { 876 size_t len; 877 int mib[2]; 878 char *buf; 879 880 /* 881 * XXX 882 * Add emulation of KINFO_FILE here. 883 */ 884 if (memf != NULL) 885 errx(1, "files on dead kernel, not implemented\n"); 886 887 mib[0] = CTL_KERN; 888 mib[1] = KERN_FILE; 889 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 890 warn("sysctl: KERN_FILE"); 891 return (-1); 892 } 893 if ((buf = malloc(len)) == NULL) 894 err(1, NULL); 895 if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) { 896 warn("sysctl: KERN_FILE"); 897 return (-1); 898 } 899 *abuf = buf; 900 *alen = len; 901 return (0); 902 } 903 904 /* 905 * swapmode is based on a program called swapinfo written 906 * by Kevin Lahey <kml@rokkaku.atl.ga.us>. 907 */ 908 void 909 swapmode() 910 { 911 char *header; 912 int hlen, nswap, nswdev, dmmax, nswapmap, niswap, niswdev; 913 int s, e, div, i, l, avail, nfree, npfree, used; 914 struct swdevt *sw; 915 long blocksize, *perdev; 916 struct map *swapmap, *kswapmap; 917 struct mapent *mp; 918 919 KGET(VM_NSWAP, nswap); 920 KGET(VM_NSWDEV, nswdev); 921 KGET(VM_DMMAX, dmmax); 922 KGET(VM_NSWAPMAP, nswapmap); 923 KGET(VM_SWAPMAP, kswapmap); /* kernel `swapmap' is a pointer */ 924 if ((sw = malloc(nswdev * sizeof(*sw))) == NULL || 925 (perdev = malloc(nswdev * sizeof(*perdev))) == NULL || 926 (mp = malloc(nswapmap * sizeof(*mp))) == NULL) 927 err(1, "malloc"); 928 KGET1(VM_SWDEVT, sw, nswdev * sizeof(*sw), "swdevt"); 929 KGET2((long)kswapmap, mp, nswapmap * sizeof(*mp), "swapmap"); 930 931 /* Supports sequential swap */ 932 if (nl[VM_NISWAP].n_value != 0) { 933 KGET(VM_NISWAP, niswap); 934 KGET(VM_NISWDEV, niswdev); 935 } else { 936 niswap = nswap; 937 niswdev = nswdev; 938 } 939 940 /* First entry in map is `struct map'; rest are mapent's. */ 941 swapmap = (struct map *)mp; 942 if (nswapmap != swapmap->m_limit - (struct mapent *)kswapmap) 943 errx(1, "panic: nswapmap goof"); 944 945 /* Count up swap space. */ 946 nfree = 0; 947 memset(perdev, 0, nswdev * sizeof(*perdev)); 948 for (mp++; mp->m_addr != 0; mp++) { 949 s = mp->m_addr; /* start of swap region */ 950 e = mp->m_addr + mp->m_size; /* end of region */ 951 nfree += mp->m_size; 952 953 /* 954 * Swap space is split up among the configured disks. 955 * 956 * For interleaved swap devices, the first dmmax blocks 957 * of swap space some from the first disk, the next dmmax 958 * blocks from the next, and so on up to niswap blocks. 959 * 960 * Sequential swap devices follow the interleaved devices 961 * (i.e. blocks starting at niswap) in the order in which 962 * they appear in the swdev table. The size of each device 963 * will be a multiple of dmmax. 964 * 965 * The list of free space joins adjacent free blocks, 966 * ignoring device boundries. If we want to keep track 967 * of this information per device, we'll just have to 968 * extract it ourselves. We know that dmmax-sized chunks 969 * cannot span device boundaries (interleaved or sequential) 970 * so we loop over such chunks assigning them to devices. 971 */ 972 i = -1; 973 while (s < e) { /* XXX this is inefficient */ 974 int bound = roundup(s+1, dmmax); 975 976 if (bound > e) 977 bound = e; 978 if (bound <= niswap) { 979 /* Interleaved swap chunk. */ 980 if (i == -1) 981 i = (s / dmmax) % niswdev; 982 perdev[i] += bound - s; 983 if (++i >= niswdev) 984 i = 0; 985 } else { 986 /* Sequential swap chunk. */ 987 if (i < niswdev) { 988 i = niswdev; 989 l = niswap + sw[i].sw_nblks; 990 } 991 while (s >= l) { 992 /* XXX don't die on bogus blocks */ 993 if (i == nswdev-1) 994 break; 995 l += sw[++i].sw_nblks; 996 } 997 perdev[i] += bound - s; 998 } 999 s = bound; 1000 } 1001 } 1002 1003 header = getbsize(&hlen, &blocksize); 1004 if (!totalflag) 1005 (void)printf("%-11s %*s %8s %8s %8s %s\n", 1006 "Device", hlen, header, 1007 "Used", "Avail", "Capacity", "Type"); 1008 div = blocksize / 512; 1009 avail = npfree = 0; 1010 for (i = 0; i < nswdev; i++) { 1011 int xsize, xfree; 1012 1013 if (!totalflag) 1014 (void)printf("/dev/%-6s %*d ", 1015 devname(sw[i].sw_dev, S_IFBLK), 1016 hlen, sw[i].sw_nblks / div); 1017 1018 /* 1019 * Don't report statistics for partitions which have not 1020 * yet been activated via swapon(8). 1021 */ 1022 if (!(sw[i].sw_flags & SW_FREED)) { 1023 if (totalflag) 1024 continue; 1025 (void)printf(" *** not available for swapping ***\n"); 1026 continue; 1027 } 1028 xsize = sw[i].sw_nblks; 1029 xfree = perdev[i]; 1030 used = xsize - xfree; 1031 npfree++; 1032 avail += xsize; 1033 if (totalflag) 1034 continue; 1035 (void)printf("%8d %8d %5.0f%% %s\n", 1036 used / div, xfree / div, 1037 (double)used / (double)xsize * 100.0, 1038 (sw[i].sw_flags & SW_SEQUENTIAL) ? 1039 "Sequential" : "Interleaved"); 1040 } 1041 1042 /* 1043 * If only one partition has been set up via swapon(8), we don't 1044 * need to bother with totals. 1045 */ 1046 used = avail - nfree; 1047 if (totalflag) { 1048 (void)printf("%dM/%dM swap space\n", used / 2048, avail / 2048); 1049 return; 1050 } 1051 if (npfree > 1) { 1052 (void)printf("%-11s %*d %8d %8d %5.0f%%\n", 1053 "Total", hlen, avail / div, used / div, nfree / div, 1054 (double)used / (double)avail * 100.0); 1055 } 1056 } 1057 1058 void 1059 usage() 1060 { 1061 (void)fprintf(stderr, 1062 "usage: pstat -Tfnstv [system] [-M core] [-N system]\n"); 1063 exit(1); 1064 } 1065