pstat.c revision 1.56
1 /* $NetBSD: pstat.c,v 1.56 2000/12/13 05:50:33 enami Exp $ */ 2 3 /*- 4 * Copyright (c) 1980, 1991, 1993, 1994 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 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) Copyright (c) 1980, 1991, 1993, 1994\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 static char sccsid[] = "@(#)pstat.c 8.16 (Berkeley) 5/9/95"; 45 #else 46 __RCSID("$NetBSD: pstat.c,v 1.56 2000/12/13 05:50:33 enami 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 #define _LKM 57 #include <sys/file.h> 58 #include <ufs/ufs/quota.h> 59 #include <ufs/ufs/inode.h> 60 #define NFS 61 #include <sys/mount.h> 62 #undef NFS 63 #include <sys/uio.h> 64 #include <sys/namei.h> 65 #include <miscfs/genfs/layer.h> 66 #include <miscfs/union/union.h> 67 #undef _KERNEL 68 #include <sys/stat.h> 69 #include <nfs/nfsproto.h> 70 #include <nfs/rpcv2.h> 71 #include <nfs/nfs.h> 72 #include <nfs/nfsnode.h> 73 #include <sys/ioctl.h> 74 #include <sys/tty.h> 75 #include <sys/conf.h> 76 #include <sys/device.h> 77 78 #include <sys/sysctl.h> 79 80 #include <err.h> 81 #include <kvm.h> 82 #include <limits.h> 83 #include <nlist.h> 84 #include <stdio.h> 85 #include <stdlib.h> 86 #include <string.h> 87 #include <unistd.h> 88 89 #include "swapctl.h" 90 91 struct nlist nl[] = { 92 #define V_MOUNTLIST 0 93 { "_mountlist" }, /* address of head of mount list. */ 94 #define V_NUMV 1 95 { "_numvnodes" }, 96 #define FNL_NFILE 2 97 { "_nfiles" }, 98 #define FNL_MAXFILE 3 99 { "_maxfiles" }, 100 #define TTY_NTTY 4 101 { "_tty_count" }, 102 #define TTY_TTYLIST 5 103 { "_ttylist" }, 104 #define NLMANDATORY TTY_TTYLIST /* names up to here are mandatory */ 105 { "" } 106 }; 107 108 int usenumflag; 109 int totalflag; 110 int kflag; 111 char *nlistf = NULL; 112 char *memf = NULL; 113 kvm_t *kd; 114 115 struct { 116 int m_flag; 117 const char *m_name; 118 } mnt_flags[] = { 119 { MNT_RDONLY, "rdonly" }, 120 { MNT_SYNCHRONOUS, "sync" }, 121 { MNT_NOEXEC, "noexec" }, 122 { MNT_NOSUID, "nosuid" }, 123 { MNT_NODEV, "nodev" }, 124 { MNT_UNION, "union" }, 125 { MNT_ASYNC, "async" }, 126 { MNT_NOCOREDUMP, "nocoredump" }, 127 { MNT_NOATIME, "noatime" }, 128 { MNT_SYMPERM, "symperm" }, 129 { MNT_NODEVMTIME, "nodevmtime" }, 130 { MNT_SOFTDEP, "softdep" }, 131 { MNT_EXRDONLY, "exrdonly" }, 132 { MNT_EXPORTED, "exported" }, 133 { MNT_DEFEXPORTED, "defexported" }, 134 { MNT_EXPORTANON, "exportanon" }, 135 { MNT_EXKERB, "exkerb" }, 136 { MNT_EXNORESPORT, "exnoresport" }, 137 { MNT_EXPUBLIC, "expublic" }, 138 { MNT_LOCAL, "local" }, 139 { MNT_QUOTA, "quota" }, 140 { MNT_ROOTFS, "rootfs" }, 141 { MNT_UPDATE, "update" }, 142 { MNT_DELEXPORT, "delexport" }, 143 { MNT_RELOAD, "reload" }, 144 { MNT_FORCE, "force" }, 145 { MNT_GONE, "gone" }, 146 { MNT_UNMOUNT, "unmount" }, 147 { MNT_WANTRDWR, "wantrdwr" }, 148 { 0 } 149 }; 150 151 #define SVAR(var) __STRING(var) /* to force expansion */ 152 #define KGET(idx, var) \ 153 KGET1(idx, &var, sizeof(var), SVAR(var)) 154 #define KGET1(idx, p, s, msg) \ 155 KGET2(nl[idx].n_value, p, s, msg) 156 #define KGET2(addr, p, s, msg) \ 157 if (kvm_read(kd, (u_long)(addr), p, s) != s) \ 158 warnx("cannot read %s: %s", msg, kvm_geterr(kd)) 159 #define KGETRET(addr, p, s, msg) \ 160 if (kvm_read(kd, (u_long)(addr), p, s) != s) { \ 161 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 162 return (0); \ 163 } 164 165 void filemode __P((void)); 166 int getfiles __P((char **, int *)); 167 struct mount * 168 getmnt __P((struct mount *)); 169 struct e_vnode * 170 kinfo_vnodes __P((int *)); 171 void layer_header __P((void)); 172 int layer_print __P((struct vnode *)); 173 struct e_vnode * 174 loadvnodes __P((int *)); 175 int main __P((int, char **)); 176 void mount_print __P((struct mount *)); 177 void nfs_header __P((void)); 178 int nfs_print __P((struct vnode *)); 179 void ttymode __P((void)); 180 void ttyprt __P((struct tty *)); 181 void ufs_getflags __P((struct vnode *, struct inode *, char *)); 182 void ufs_header __P((void)); 183 int ufs_print __P((struct vnode *)); 184 int ext2fs_print __P((struct vnode *)); 185 void union_header __P((void)); 186 int union_print __P((struct vnode *)); 187 void usage __P((void)); 188 void vnode_header __P((void)); 189 void vnode_print __P((struct vnode *, struct vnode *)); 190 void vnodemode __P((void)); 191 192 int 193 main(argc, argv) 194 int argc; 195 char *argv[]; 196 { 197 int ch, i, quit, ret; 198 int fileflag, swapflag, ttyflag, vnodeflag; 199 gid_t egid = getegid(); 200 char buf[_POSIX2_LINE_MAX]; 201 202 setegid(getgid()); 203 fileflag = swapflag = ttyflag = vnodeflag = 0; 204 while ((ch = getopt(argc, argv, "TM:N:fiknstv")) != -1) 205 switch (ch) { 206 case 'f': 207 fileflag = 1; 208 break; 209 case 'M': 210 memf = optarg; 211 break; 212 case 'N': 213 nlistf = optarg; 214 break; 215 case 'n': 216 usenumflag = 1; 217 break; 218 case 's': 219 swapflag = 1; 220 break; 221 case 'T': 222 totalflag = 1; 223 break; 224 case 't': 225 ttyflag = 1; 226 break; 227 case 'k': 228 kflag = 1; 229 break; 230 case 'v': 231 case 'i': /* Backward compatibility. */ 232 vnodeflag = 1; 233 break; 234 default: 235 usage(); 236 } 237 argc -= optind; 238 argv += optind; 239 240 /* 241 * Discard setgid privileges. If not the running kernel, we toss 242 * them away totally so that bad guys can't print interesting stuff 243 * from kernel memory, otherwise switch back to kmem for the 244 * duration of the kvm_openfiles() call. 245 */ 246 if (nlistf != NULL || memf != NULL) 247 (void)setgid(getgid()); 248 else 249 (void)setegid(egid); 250 251 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0) 252 errx(1, "kvm_openfiles: %s", buf); 253 254 /* get rid of it now anyway */ 255 if (nlistf == NULL && memf == NULL) 256 (void)setgid(getgid()); 257 if ((ret = kvm_nlist(kd, nl)) != 0) { 258 if (ret == -1) 259 errx(1, "kvm_nlist: %s", kvm_geterr(kd)); 260 for (i = quit = 0; i <= NLMANDATORY; i++) 261 if (!nl[i].n_value) { 262 quit = 1; 263 warnx("undefined symbol: %s", nl[i].n_name); 264 } 265 if (quit) 266 exit(1); 267 } 268 if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag)) 269 usage(); 270 if (fileflag || totalflag) 271 filemode(); 272 if (vnodeflag || totalflag) 273 vnodemode(); 274 if (ttyflag) 275 ttymode(); 276 if (swapflag || totalflag) 277 list_swap(0, kflag, 0, totalflag, 1); 278 exit (0); 279 } 280 281 struct e_vnode { 282 struct vnode *avnode; 283 struct vnode vnode; 284 }; 285 286 void 287 vnodemode() 288 { 289 struct e_vnode *e_vnodebase, *endvnode, *evp; 290 struct vnode *vp; 291 struct mount *maddr, *mp; 292 int numvnodes; 293 int (*vnode_fsprint) __P((struct vnode *)); /* per-fs data printer */ 294 295 mp = NULL; 296 e_vnodebase = loadvnodes(&numvnodes); 297 if (totalflag) { 298 (void)printf("%7d vnodes\n", numvnodes); 299 return; 300 } 301 endvnode = e_vnodebase + numvnodes; 302 (void)printf("%d active vnodes\n", numvnodes); 303 304 #define ST mp->mnt_stat 305 #define FSTYPE_IS(mp, name) \ 306 (strncmp((mp)->mnt_stat.f_fstypename, (name), MFSNAMELEN) == 0) 307 maddr = NULL; 308 vnode_fsprint = NULL; 309 for (evp = e_vnodebase; evp < endvnode; evp++) { 310 vp = &evp->vnode; 311 if (vp->v_mount != maddr) { 312 /* 313 * New filesystem 314 */ 315 if ((mp = getmnt(vp->v_mount)) == NULL) 316 continue; 317 maddr = vp->v_mount; 318 mount_print(mp); 319 vnode_header(); 320 if (FSTYPE_IS(mp, MOUNT_FFS) || 321 FSTYPE_IS(mp, MOUNT_MFS)) { 322 ufs_header(); 323 vnode_fsprint = ufs_print; 324 } else if (FSTYPE_IS(mp, MOUNT_NFS)) { 325 nfs_header(); 326 vnode_fsprint = nfs_print; 327 } else if (FSTYPE_IS(mp, MOUNT_EXT2FS)) { 328 ufs_header(); 329 vnode_fsprint = ext2fs_print; 330 } else if (FSTYPE_IS(mp, MOUNT_NULL) || 331 FSTYPE_IS(mp, MOUNT_OVERLAY) || 332 FSTYPE_IS(mp, MOUNT_UMAP)) { 333 layer_header(); 334 vnode_fsprint = layer_print; 335 } else if (FSTYPE_IS(mp, MOUNT_UNION)) { 336 union_header(); 337 vnode_fsprint = union_print; 338 } else 339 vnode_fsprint = NULL; 340 (void)printf("\n"); 341 } 342 vnode_print(evp->avnode, vp); 343 if (VTOI(vp) != NULL && vnode_fsprint != NULL) 344 (*vnode_fsprint)(vp); 345 (void)printf("\n"); 346 } 347 free(e_vnodebase); 348 } 349 350 void 351 vnode_header() 352 { 353 354 (void)printf("ADDR TYP VFLAG USE HOLD TAG"); 355 } 356 357 void 358 vnode_print(avnode, vp) 359 struct vnode *avnode; 360 struct vnode *vp; 361 { 362 char *type, flags[16]; 363 char *fp = flags; 364 int flag; 365 366 /* 367 * set type 368 */ 369 switch (vp->v_type) { 370 case VNON: 371 type = "non"; break; 372 case VREG: 373 type = "reg"; break; 374 case VDIR: 375 type = "dir"; break; 376 case VBLK: 377 type = "blk"; break; 378 case VCHR: 379 type = "chr"; break; 380 case VLNK: 381 type = "lnk"; break; 382 case VSOCK: 383 type = "soc"; break; 384 case VFIFO: 385 type = "fif"; break; 386 case VBAD: 387 type = "bad"; break; 388 default: 389 type = "unk"; break; 390 } 391 /* 392 * gather flags 393 */ 394 flag = vp->v_flag; 395 if (flag & VROOT) 396 *fp++ = 'R'; 397 if (flag & VTEXT) 398 *fp++ = 'T'; 399 if (flag & VSYSTEM) 400 *fp++ = 'S'; 401 if (flag & VISTTY) 402 *fp++ = 'I'; 403 if (flag & VXLOCK) 404 *fp++ = 'L'; 405 if (flag & VXWANT) 406 *fp++ = 'W'; 407 if (flag & VBWAIT) 408 *fp++ = 'B'; 409 if (flag & VALIASED) 410 *fp++ = 'A'; 411 if (flag & VDIROP) 412 *fp++ = 'D'; 413 if (flag & VLAYER) 414 *fp++ = 'Y'; 415 if (flag & VONWORKLST) 416 *fp++ = 'O'; 417 if (flag == 0) 418 *fp++ = '-'; 419 *fp = '\0'; 420 (void)printf("%8lx %s %5s %4ld %4ld %3d", 421 (long)avnode, type, flags, (long)vp->v_usecount, 422 (long)vp->v_holdcnt, vp->v_tag); 423 } 424 425 void 426 ufs_getflags(vp, ip, flags) 427 struct vnode *vp; 428 struct inode *ip; 429 char *flags; 430 { 431 int flag; 432 433 /* 434 * XXX need to to locking state. 435 */ 436 437 flag = ip->i_flag; 438 if (flag & IN_ACCESS) 439 *flags++ = 'A'; 440 if (flag & IN_CHANGE) 441 *flags++ = 'C'; 442 if (flag & IN_UPDATE) 443 *flags++ = 'U'; 444 if (flag & IN_MODIFIED) 445 *flags++ = 'M'; 446 if (flag & IN_ACCESSED) 447 *flags++ = 'a'; 448 if (flag & IN_RENAME) 449 *flags++ = 'R'; 450 if (flag & IN_SHLOCK) 451 *flags++ = 'S'; 452 if (flag & IN_EXLOCK) 453 *flags++ = 'E'; 454 if (flag & IN_CLEANING) 455 *flags++ = 'c'; 456 if (flag & IN_ADIROP) 457 *flags++ = 'a'; 458 if (flag == 0) 459 *flags++ = '-'; 460 *flags = '\0'; 461 462 } 463 464 void 465 ufs_header() 466 { 467 468 (void)printf(" FILEID IFLAG RDEV|SZ"); 469 } 470 471 int 472 ufs_print(vp) 473 struct vnode *vp; 474 { 475 struct inode inode, *ip = &inode; 476 char flagbuf[16]; 477 char *name; 478 mode_t type; 479 480 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 481 ufs_getflags(vp, ip, flagbuf); 482 (void)printf(" %6d %5s", ip->i_number, flagbuf); 483 type = ip->i_ffs_mode & S_IFMT; 484 if (S_ISCHR(ip->i_ffs_mode) || S_ISBLK(ip->i_ffs_mode)) 485 if (usenumflag || 486 ((name = devname(ip->i_ffs_rdev, type)) == NULL)) 487 (void)printf(" %2d,%-2d", 488 major(ip->i_ffs_rdev), minor(ip->i_ffs_rdev)); 489 else 490 (void)printf(" %7s", name); 491 else 492 (void)printf(" %7qd", (long long)ip->i_ffs_size); 493 return (0); 494 } 495 496 int 497 ext2fs_print(vp) 498 struct vnode *vp; 499 { 500 struct inode inode, *ip = &inode; 501 char flagbuf[16]; 502 char *name; 503 mode_t type; 504 505 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 506 ufs_getflags(vp, ip, flagbuf); 507 (void)printf(" %6d %5s", ip->i_number, flagbuf); 508 type = ip->i_e2fs_mode & S_IFMT; 509 if (S_ISCHR(ip->i_e2fs_mode) || S_ISBLK(ip->i_e2fs_mode)) 510 if (usenumflag || 511 ((name = devname(ip->i_e2fs_rdev, type)) == NULL)) 512 (void)printf(" %2d,%-2d", 513 major(ip->i_e2fs_rdev), minor(ip->i_e2fs_rdev)); 514 else 515 (void)printf(" %7s", name); 516 else 517 (void)printf(" %7u", (u_int)ip->i_e2fs_size); 518 return (0); 519 } 520 521 void 522 nfs_header() 523 { 524 525 (void)printf(" FILEID NFLAG RDEV|SZ"); 526 } 527 528 int 529 nfs_print(vp) 530 struct vnode *vp; 531 { 532 struct nfsnode nfsnode, *np = &nfsnode; 533 char flagbuf[16], *flags = flagbuf; 534 int flag; 535 struct vattr va; 536 char *name; 537 mode_t type; 538 539 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 540 flag = np->n_flag; 541 if (flag & NFLUSHWANT) 542 *flags++ = 'W'; 543 if (flag & NFLUSHINPROG) 544 *flags++ = 'P'; 545 if (flag & NMODIFIED) 546 *flags++ = 'M'; 547 if (flag & NWRITEERR) 548 *flags++ = 'E'; 549 if (flag & NQNFSNONCACHE) 550 *flags++ = 'X'; 551 if (flag & NQNFSWRITE) 552 *flags++ = 'O'; 553 if (flag & NQNFSEVICTED) 554 *flags++ = 'G'; 555 if (flag & NACC) 556 *flags++ = 'A'; 557 if (flag & NUPD) 558 *flags++ = 'U'; 559 if (flag & NCHG) 560 *flags++ = 'C'; 561 if (flag == 0) 562 *flags++ = '-'; 563 *flags = '\0'; 564 565 KGETRET(np->n_vattr, &va, sizeof(va), "vnode attr"); 566 (void)printf(" %6ld %5s", (long)va.va_fileid, flagbuf); 567 switch (va.va_type) { 568 case VCHR: 569 type = S_IFCHR; 570 goto device; 571 572 case VBLK: 573 type = S_IFBLK; 574 device: 575 if (usenumflag || ((name = devname(va.va_rdev, type)) == NULL)) 576 (void)printf(" %2d,%-2d", 577 major(va.va_rdev), minor(va.va_rdev)); 578 else 579 (void)printf(" %7s", name); 580 break; 581 default: 582 (void)printf(" %7qd", (long long)np->n_size); 583 break; 584 } 585 return (0); 586 } 587 588 void 589 layer_header() 590 { 591 592 (void)printf(" LOWER"); 593 } 594 595 int 596 layer_print(vp) 597 struct vnode *vp; 598 { 599 struct layer_node lnode, *lp = &lnode; 600 601 KGETRET(VTOLAYER(vp), &lnode, sizeof(lnode), "layer vnode"); 602 603 (void)printf(" %8lx", (long)lp->layer_lowervp); 604 return (0); 605 } 606 607 void 608 union_header() 609 { 610 611 (void)printf(" UPPER LOWER"); 612 } 613 614 int 615 union_print(vp) 616 struct vnode *vp; 617 { 618 struct union_node unode, *up = &unode; 619 620 KGETRET(VTOUNION(vp), &unode, sizeof(unode), "vnode's unode"); 621 622 (void)printf(" %8lx %8lx", (long)up->un_uppervp, (long)up->un_lowervp); 623 return (0); 624 } 625 626 /* 627 * Given a pointer to a mount structure in kernel space, 628 * read it in and return a usable pointer to it. 629 */ 630 struct mount * 631 getmnt(maddr) 632 struct mount *maddr; 633 { 634 static struct mtab { 635 struct mtab *next; 636 struct mount *maddr; 637 struct mount mount; 638 } *mhead = NULL; 639 struct mtab *mt; 640 641 for (mt = mhead; mt != NULL; mt = mt->next) 642 if (maddr == mt->maddr) 643 return (&mt->mount); 644 if ((mt = malloc(sizeof(struct mtab))) == NULL) 645 err(1, "malloc"); 646 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 647 mt->maddr = maddr; 648 mt->next = mhead; 649 mhead = mt; 650 return (&mt->mount); 651 } 652 653 void 654 mount_print(mp) 655 struct mount *mp; 656 { 657 int flags; 658 659 (void)printf("*** MOUNT %s %s on %s", ST.f_fstypename, 660 ST.f_mntfromname, ST.f_mntonname); 661 if ((flags = mp->mnt_flag) != 0) { 662 int i; 663 const char *sep = " ("; 664 665 for (i = 0; mnt_flags[i].m_flag; i++) { 666 if (flags & mnt_flags[i].m_flag) { 667 (void)printf("%s%s", sep, mnt_flags[i].m_name); 668 flags &= ~mnt_flags[i].m_flag; 669 sep = ","; 670 } 671 } 672 if (flags) 673 (void)printf("%sunknown_flags:%x", sep, flags); 674 (void)printf(")"); 675 } 676 (void)printf("\n"); 677 } 678 679 struct e_vnode * 680 loadvnodes(avnodes) 681 int *avnodes; 682 { 683 int mib[2]; 684 size_t copysize; 685 struct e_vnode *vnodebase; 686 687 if (memf != NULL) { 688 /* 689 * do it by hand 690 */ 691 return (kinfo_vnodes(avnodes)); 692 } 693 mib[0] = CTL_KERN; 694 mib[1] = KERN_VNODE; 695 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 696 err(1, "sysctl: KERN_VNODE"); 697 if ((vnodebase = malloc(copysize)) == NULL) 698 err(1, "malloc"); 699 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 700 err(1, "sysctl: KERN_VNODE"); 701 if (copysize % sizeof(struct e_vnode)) 702 errx(1, "vnode size mismatch"); 703 *avnodes = copysize / sizeof(struct e_vnode); 704 705 return (vnodebase); 706 } 707 708 /* 709 * simulate what a running kernel does in in kinfo_vnode 710 */ 711 struct e_vnode * 712 kinfo_vnodes(avnodes) 713 int *avnodes; 714 { 715 struct mntlist mountlist; 716 struct mount *mp, mount; 717 struct vnode *vp, vnode; 718 char *vbuf, *evbuf, *bp; 719 int num, numvnodes; 720 721 #define VPTRSZ sizeof(struct vnode *) 722 #define VNODESZ sizeof(struct vnode) 723 724 KGET(V_NUMV, numvnodes); 725 if ((vbuf = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 726 err(1, "malloc"); 727 bp = vbuf; 728 evbuf = vbuf + (numvnodes + 20) * (VPTRSZ + VNODESZ); 729 KGET(V_MOUNTLIST, mountlist); 730 for (num = 0, mp = mountlist.cqh_first;; 731 mp = mount.mnt_list.cqe_next) { 732 KGET2(mp, &mount, sizeof(mount), "mount entry"); 733 for (vp = mount.mnt_vnodelist.lh_first; 734 vp != NULL; vp = vnode.v_mntvnodes.le_next) { 735 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 736 if ((bp + VPTRSZ + VNODESZ) > evbuf) 737 /* XXX - should realloc */ 738 errx(1, "no more room for vnodes"); 739 memmove(bp, &vp, VPTRSZ); 740 bp += VPTRSZ; 741 memmove(bp, &vnode, VNODESZ); 742 bp += VNODESZ; 743 num++; 744 } 745 if (mp == mountlist.cqh_last) 746 break; 747 } 748 *avnodes = num; 749 return ((struct e_vnode *)vbuf); 750 } 751 752 const char hdr[]=" LINE RAW CAN OUT HWT LWT COL STATE SESS PGID DISC\n"; 753 int ttyspace = 128; 754 755 void 756 ttymode() 757 { 758 int ntty; 759 struct ttylist_head tty_head; 760 struct tty *tp, tty; 761 762 KGET(TTY_NTTY, ntty); 763 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 764 KGET(TTY_TTYLIST, tty_head); 765 (void)printf(hdr); 766 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 767 KGET2(tp, &tty, sizeof tty, "tty struct"); 768 ttyprt(&tty); 769 } 770 } 771 772 struct { 773 int flag; 774 char val; 775 } ttystates[] = { 776 { TS_ISOPEN, 'O'}, 777 { TS_DIALOUT, '>'}, 778 { TS_CARR_ON, 'C'}, 779 { TS_TIMEOUT, 'T'}, 780 { TS_FLUSH, 'F'}, 781 { TS_BUSY, 'B'}, 782 { TS_ASLEEP, 'A'}, 783 { TS_XCLUDE, 'X'}, 784 { TS_TTSTOP, 'S'}, 785 { TS_TBLOCK, 'K'}, 786 { TS_ASYNC, 'Y'}, 787 { TS_BKSL, 'D'}, 788 { TS_ERASE, 'E'}, 789 { TS_LNCH, 'L'}, 790 { TS_TYPEN, 'P'}, 791 { TS_CNTTB, 'N'}, 792 { 0, '\0'}, 793 }; 794 795 void 796 ttyprt(tp) 797 struct tty *tp; 798 { 799 int i, j; 800 pid_t pgid; 801 char *name, state[20], buffer; 802 struct linesw t_linesw; 803 804 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) 805 (void)printf("0x%3x:%1x ", major(tp->t_dev), minor(tp->t_dev)); 806 else 807 (void)printf("%-7s ", name); 808 (void)printf("%2d %3d ", tp->t_rawq.c_cc, tp->t_canq.c_cc); 809 (void)printf("%3d %4d %3d %7d ", tp->t_outq.c_cc, 810 tp->t_hiwat, tp->t_lowat, tp->t_column); 811 for (i = j = 0; ttystates[i].flag; i++) 812 if (tp->t_state&ttystates[i].flag) 813 state[j++] = ttystates[i].val; 814 if (tp->t_wopen) 815 state[j++] = 'W'; 816 if (j == 0) 817 state[j++] = '-'; 818 state[j] = '\0'; 819 (void)printf("%-6s %8lX", state, (u_long)tp->t_session); 820 pgid = 0; 821 if (tp->t_pgrp != NULL) 822 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 823 (void)printf("%6d ", pgid); 824 KGET2(tp->t_linesw, &t_linesw, sizeof(t_linesw), 825 "line discipline switch table"); 826 name = t_linesw.l_name; 827 for (;;) { 828 KGET2(name, &buffer, sizeof(buffer), "line discipline name"); 829 if (buffer == '\0') 830 break; 831 (void)putchar(buffer); 832 name++; 833 } 834 (void)putchar('\n'); 835 } 836 837 void 838 filemode() 839 { 840 struct file *fp; 841 struct file *addr; 842 char *buf, flagbuf[16], *fbp; 843 int len, maxfile, nfile; 844 static char *dtypes[] = { "???", "inode", "socket" }; 845 846 KGET(FNL_MAXFILE, maxfile); 847 if (totalflag) { 848 KGET(FNL_NFILE, nfile); 849 (void)printf("%3d/%3d files\n", nfile, maxfile); 850 return; 851 } 852 if (getfiles(&buf, &len) == -1) 853 return; 854 /* 855 * Getfiles returns in malloc'd memory a pointer to the first file 856 * structure, and then an array of file structs (whose addresses are 857 * derivable from the previous entry). 858 */ 859 addr = ((struct filelist *)buf)->lh_first; 860 fp = (struct file *)(buf + sizeof(struct filelist)); 861 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 862 863 (void)printf("%d/%d open files\n", nfile, maxfile); 864 (void)printf(" LOC TYPE FLG CNT MSG DATA OFFSET\n"); 865 for (; (char *)fp < buf + len; addr = fp->f_list.le_next, fp++) { 866 if ((unsigned)fp->f_type > DTYPE_SOCKET) 867 continue; 868 (void)printf("%lx ", (long)addr); 869 (void)printf("%-8.8s", dtypes[fp->f_type]); 870 fbp = flagbuf; 871 if (fp->f_flag & FREAD) 872 *fbp++ = 'R'; 873 if (fp->f_flag & FWRITE) 874 *fbp++ = 'W'; 875 if (fp->f_flag & FAPPEND) 876 *fbp++ = 'A'; 877 #ifdef FSHLOCK /* currently gone */ 878 if (fp->f_flag & FSHLOCK) 879 *fbp++ = 'S'; 880 if (fp->f_flag & FEXLOCK) 881 *fbp++ = 'X'; 882 #endif 883 if (fp->f_flag & FASYNC) 884 *fbp++ = 'I'; 885 *fbp = '\0'; 886 (void)printf("%6s %3d", flagbuf, fp->f_count); 887 (void)printf(" %3d", fp->f_msgcount); 888 (void)printf(" %8.1lx", (long)fp->f_data); 889 if (fp->f_offset < 0) 890 (void)printf(" %qx\n", (long long)fp->f_offset); 891 else 892 (void)printf(" %qd\n", (long long)fp->f_offset); 893 } 894 free(buf); 895 } 896 897 int 898 getfiles(abuf, alen) 899 char **abuf; 900 int *alen; 901 { 902 size_t len; 903 int mib[2]; 904 char *buf; 905 906 /* 907 * XXX 908 * Add emulation of KINFO_FILE here. 909 */ 910 if (memf != NULL) 911 errx(1, "files on dead kernel, not implemented\n"); 912 913 mib[0] = CTL_KERN; 914 mib[1] = KERN_FILE; 915 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 916 warn("sysctl: KERN_FILE"); 917 return (-1); 918 } 919 if ((buf = malloc(len)) == NULL) 920 err(1, "malloc"); 921 if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) { 922 warn("sysctl: KERN_FILE"); 923 return (-1); 924 } 925 *abuf = buf; 926 *alen = len; 927 return (0); 928 } 929 930 void 931 usage() 932 { 933 934 (void)fprintf(stderr, 935 "usage: pstat [-T|-f|-s|-t|-v] [-kn] [-M core] [-N system]\n"); 936 exit(1); 937 } 938
Indexes created Tue Sep 23 07:09:52 GMT 2025