pstat.c revision 1.58
1 /* $NetBSD: pstat.c,v 1.58 2001/02/11 02:44:27 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 1.58 2001/02/11 02:44:27 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) do { \ 157 if (kvm_read(kd, (u_long)(addr), p, s) != s) \ 158 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 159 } while (/* CONSTCOND */0) 160 #define KGETRET(addr, p, s, msg) do { \ 161 if (kvm_read(kd, (u_long)(addr), p, s) != s) { \ 162 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 163 return (0); \ 164 } \ 165 } while (/* CONSTCOND */0) 166 167 void filemode __P((void)); 168 int getfiles __P((char **, int *)); 169 struct mount * 170 getmnt __P((struct mount *)); 171 struct e_vnode * 172 kinfo_vnodes __P((int *)); 173 void layer_header __P((void)); 174 int layer_print __P((struct vnode *)); 175 struct e_vnode * 176 loadvnodes __P((int *)); 177 int main __P((int, char **)); 178 void mount_print __P((struct mount *)); 179 void nfs_header __P((void)); 180 int nfs_print __P((struct vnode *)); 181 void ttymode __P((void)); 182 void ttyprt __P((struct tty *)); 183 void ufs_getflags __P((struct vnode *, struct inode *, char *)); 184 void ufs_header __P((void)); 185 int ufs_print __P((struct vnode *)); 186 int ext2fs_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 int ch, i, quit, ret; 200 int fileflag, swapflag, ttyflag, vnodeflag; 201 gid_t egid = getegid(); 202 char buf[_POSIX2_LINE_MAX]; 203 204 setegid(getgid()); 205 fileflag = swapflag = ttyflag = vnodeflag = 0; 206 while ((ch = getopt(argc, argv, "TM:N:fiknstv")) != -1) 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 'k': 230 kflag = 1; 231 break; 232 case 'v': 233 case 'i': /* Backward compatibility. */ 234 vnodeflag = 1; 235 break; 236 default: 237 usage(); 238 } 239 argc -= optind; 240 argv += optind; 241 242 /* 243 * Discard setgid privileges. If not the running kernel, we toss 244 * them away totally so that bad guys can't print interesting stuff 245 * from kernel memory, otherwise switch back to kmem for the 246 * duration of the kvm_openfiles() call. 247 */ 248 if (nlistf != NULL || memf != NULL) 249 (void)setgid(getgid()); 250 else 251 (void)setegid(egid); 252 253 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0) 254 errx(1, "kvm_openfiles: %s", buf); 255 256 /* get rid of it now anyway */ 257 if (nlistf == NULL && memf == NULL) 258 (void)setgid(getgid()); 259 if ((ret = kvm_nlist(kd, nl)) != 0) { 260 if (ret == -1) 261 errx(1, "kvm_nlist: %s", kvm_geterr(kd)); 262 for (i = quit = 0; i <= NLMANDATORY; i++) 263 if (!nl[i].n_value) { 264 quit = 1; 265 warnx("undefined symbol: %s", nl[i].n_name); 266 } 267 if (quit) 268 exit(1); 269 } 270 if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag)) 271 usage(); 272 if (fileflag || totalflag) 273 filemode(); 274 if (vnodeflag || totalflag) 275 vnodemode(); 276 if (ttyflag) 277 ttymode(); 278 if (swapflag || totalflag) 279 list_swap(0, kflag, 0, totalflag, 1); 280 exit (0); 281 } 282 283 struct e_vnode { 284 struct vnode *avnode; 285 struct vnode vnode; 286 }; 287 288 void 289 vnodemode() 290 { 291 struct e_vnode *e_vnodebase, *endvnode, *evp; 292 struct vnode *vp; 293 struct mount *maddr, *mp; 294 int numvnodes; 295 int (*vnode_fsprint) __P((struct vnode *)); /* per-fs data printer */ 296 297 mp = NULL; 298 e_vnodebase = loadvnodes(&numvnodes); 299 if (totalflag) { 300 (void)printf("%7d vnodes\n", numvnodes); 301 return; 302 } 303 endvnode = e_vnodebase + numvnodes; 304 (void)printf("%d active vnodes\n", numvnodes); 305 306 #define ST mp->mnt_stat 307 #define FSTYPE_IS(mp, name) \ 308 (strncmp((mp)->mnt_stat.f_fstypename, (name), MFSNAMELEN) == 0) 309 maddr = NULL; 310 vnode_fsprint = NULL; 311 for (evp = e_vnodebase; evp < endvnode; evp++) { 312 vp = &evp->vnode; 313 if (vp->v_mount != maddr) { 314 /* 315 * New filesystem 316 */ 317 if ((mp = getmnt(vp->v_mount)) == NULL) 318 continue; 319 maddr = vp->v_mount; 320 mount_print(mp); 321 vnode_header(); 322 if (FSTYPE_IS(mp, MOUNT_FFS) || 323 FSTYPE_IS(mp, MOUNT_MFS)) { 324 ufs_header(); 325 vnode_fsprint = ufs_print; 326 } else if (FSTYPE_IS(mp, MOUNT_NFS)) { 327 nfs_header(); 328 vnode_fsprint = nfs_print; 329 } else if (FSTYPE_IS(mp, MOUNT_EXT2FS)) { 330 ufs_header(); 331 vnode_fsprint = ext2fs_print; 332 } else if (FSTYPE_IS(mp, MOUNT_NULL) || 333 FSTYPE_IS(mp, MOUNT_OVERLAY) || 334 FSTYPE_IS(mp, MOUNT_UMAP)) { 335 layer_header(); 336 vnode_fsprint = layer_print; 337 } else if (FSTYPE_IS(mp, MOUNT_UNION)) { 338 union_header(); 339 vnode_fsprint = union_print; 340 } else 341 vnode_fsprint = NULL; 342 (void)printf("\n"); 343 } 344 vnode_print(evp->avnode, vp); 345 if (VTOI(vp) != NULL && vnode_fsprint != NULL) 346 (*vnode_fsprint)(vp); 347 (void)printf("\n"); 348 } 349 free(e_vnodebase); 350 } 351 352 void 353 vnode_header() 354 { 355 356 (void)printf("ADDR TYP VFLAG USE HOLD TAG"); 357 } 358 359 void 360 vnode_print(avnode, vp) 361 struct vnode *avnode; 362 struct vnode *vp; 363 { 364 char *type, flags[16]; 365 char *fp = flags; 366 int flag; 367 368 /* 369 * set type 370 */ 371 switch (vp->v_type) { 372 case VNON: 373 type = "non"; break; 374 case VREG: 375 type = "reg"; break; 376 case VDIR: 377 type = "dir"; break; 378 case VBLK: 379 type = "blk"; break; 380 case VCHR: 381 type = "chr"; break; 382 case VLNK: 383 type = "lnk"; break; 384 case VSOCK: 385 type = "soc"; break; 386 case VFIFO: 387 type = "fif"; break; 388 case VBAD: 389 type = "bad"; break; 390 default: 391 type = "unk"; break; 392 } 393 /* 394 * gather flags 395 */ 396 flag = vp->v_flag; 397 if (flag & VROOT) 398 *fp++ = 'R'; 399 if (flag & VTEXT) 400 *fp++ = 'T'; 401 if (flag & VSYSTEM) 402 *fp++ = 'S'; 403 if (flag & VISTTY) 404 *fp++ = 'I'; 405 if (flag & VXLOCK) 406 *fp++ = 'L'; 407 if (flag & VXWANT) 408 *fp++ = 'W'; 409 if (flag & VBWAIT) 410 *fp++ = 'B'; 411 if (flag & VALIASED) 412 *fp++ = 'A'; 413 if (flag & VDIROP) 414 *fp++ = 'D'; 415 if (flag & VLAYER) 416 *fp++ = 'Y'; 417 if (flag & VONWORKLST) 418 *fp++ = 'O'; 419 if (flag == 0) 420 *fp++ = '-'; 421 *fp = '\0'; 422 (void)printf("%8lx %s %5s %4ld %4ld %3d", 423 (long)avnode, type, flags, (long)vp->v_usecount, 424 (long)vp->v_holdcnt, vp->v_tag); 425 } 426 427 void 428 ufs_getflags(vp, ip, flags) 429 struct vnode *vp; 430 struct inode *ip; 431 char *flags; 432 { 433 int flag; 434 435 /* 436 * XXX need to to locking state. 437 */ 438 439 flag = ip->i_flag; 440 if (flag & IN_ACCESS) 441 *flags++ = 'A'; 442 if (flag & IN_CHANGE) 443 *flags++ = 'C'; 444 if (flag & IN_UPDATE) 445 *flags++ = 'U'; 446 if (flag & IN_MODIFIED) 447 *flags++ = 'M'; 448 if (flag & IN_ACCESSED) 449 *flags++ = 'a'; 450 if (flag & IN_RENAME) 451 *flags++ = 'R'; 452 if (flag & IN_SHLOCK) 453 *flags++ = 'S'; 454 if (flag & IN_EXLOCK) 455 *flags++ = 'E'; 456 if (flag & IN_CLEANING) 457 *flags++ = 'c'; 458 if (flag & IN_ADIROP) 459 *flags++ = 'a'; 460 if (flag == 0) 461 *flags++ = '-'; 462 *flags = '\0'; 463 464 } 465 466 void 467 ufs_header() 468 { 469 470 (void)printf(" FILEID IFLAG RDEV|SZ"); 471 } 472 473 int 474 ufs_print(vp) 475 struct vnode *vp; 476 { 477 struct inode inode, *ip = &inode; 478 char flagbuf[16]; 479 char *name; 480 mode_t type; 481 482 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 483 ufs_getflags(vp, ip, flagbuf); 484 (void)printf(" %6d %5s", ip->i_number, flagbuf); 485 type = ip->i_ffs_mode & S_IFMT; 486 if (S_ISCHR(ip->i_ffs_mode) || S_ISBLK(ip->i_ffs_mode)) 487 if (usenumflag || 488 ((name = devname(ip->i_ffs_rdev, type)) == NULL)) 489 (void)printf(" %2d,%-2d", 490 major(ip->i_ffs_rdev), minor(ip->i_ffs_rdev)); 491 else 492 (void)printf(" %7s", name); 493 else 494 (void)printf(" %7lld", (long long)ip->i_ffs_size); 495 return (0); 496 } 497 498 int 499 ext2fs_print(vp) 500 struct vnode *vp; 501 { 502 struct inode inode, *ip = &inode; 503 char flagbuf[16]; 504 char *name; 505 mode_t type; 506 507 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 508 ufs_getflags(vp, ip, flagbuf); 509 (void)printf(" %6d %5s", ip->i_number, flagbuf); 510 type = ip->i_e2fs_mode & S_IFMT; 511 if (S_ISCHR(ip->i_e2fs_mode) || S_ISBLK(ip->i_e2fs_mode)) 512 if (usenumflag || 513 ((name = devname(ip->i_e2fs_rdev, type)) == NULL)) 514 (void)printf(" %2d,%-2d", 515 major(ip->i_e2fs_rdev), minor(ip->i_e2fs_rdev)); 516 else 517 (void)printf(" %7s", name); 518 else 519 (void)printf(" %7u", (u_int)ip->i_e2fs_size); 520 return (0); 521 } 522 523 void 524 nfs_header() 525 { 526 527 (void)printf(" FILEID NFLAG RDEV|SZ"); 528 } 529 530 int 531 nfs_print(vp) 532 struct vnode *vp; 533 { 534 struct nfsnode nfsnode, *np = &nfsnode; 535 char flagbuf[16], *flags = flagbuf; 536 int flag; 537 struct vattr va; 538 char *name; 539 mode_t type; 540 541 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 542 flag = np->n_flag; 543 if (flag & NFLUSHWANT) 544 *flags++ = 'W'; 545 if (flag & NFLUSHINPROG) 546 *flags++ = 'P'; 547 if (flag & NMODIFIED) 548 *flags++ = 'M'; 549 if (flag & NWRITEERR) 550 *flags++ = 'E'; 551 if (flag & NQNFSNONCACHE) 552 *flags++ = 'X'; 553 if (flag & NQNFSWRITE) 554 *flags++ = 'O'; 555 if (flag & NQNFSEVICTED) 556 *flags++ = 'G'; 557 if (flag & NACC) 558 *flags++ = 'A'; 559 if (flag & NUPD) 560 *flags++ = 'U'; 561 if (flag & NCHG) 562 *flags++ = 'C'; 563 if (flag == 0) 564 *flags++ = '-'; 565 *flags = '\0'; 566 567 KGETRET(np->n_vattr, &va, sizeof(va), "vnode attr"); 568 (void)printf(" %6ld %5s", (long)va.va_fileid, flagbuf); 569 switch (va.va_type) { 570 case VCHR: 571 type = S_IFCHR; 572 goto device; 573 574 case VBLK: 575 type = S_IFBLK; 576 device: 577 if (usenumflag || ((name = devname(va.va_rdev, type)) == NULL)) 578 (void)printf(" %2d,%-2d", 579 major(va.va_rdev), minor(va.va_rdev)); 580 else 581 (void)printf(" %7s", name); 582 break; 583 default: 584 (void)printf(" %7lld", (long long)np->n_size); 585 break; 586 } 587 return (0); 588 } 589 590 void 591 layer_header() 592 { 593 594 (void)printf(" LOWER"); 595 } 596 597 int 598 layer_print(vp) 599 struct vnode *vp; 600 { 601 struct layer_node lnode, *lp = &lnode; 602 603 KGETRET(VTOLAYER(vp), &lnode, sizeof(lnode), "layer vnode"); 604 605 (void)printf(" %8lx", (long)lp->layer_lowervp); 606 return (0); 607 } 608 609 void 610 union_header() 611 { 612 613 (void)printf(" UPPER LOWER"); 614 } 615 616 int 617 union_print(vp) 618 struct vnode *vp; 619 { 620 struct union_node unode, *up = &unode; 621 622 KGETRET(VTOUNION(vp), &unode, sizeof(unode), "vnode's unode"); 623 624 (void)printf(" %8lx %8lx", (long)up->un_uppervp, (long)up->un_lowervp); 625 return (0); 626 } 627 628 /* 629 * Given a pointer to a mount structure in kernel space, 630 * read it in and return a usable pointer to it. 631 */ 632 struct mount * 633 getmnt(maddr) 634 struct mount *maddr; 635 { 636 static struct mtab { 637 struct mtab *next; 638 struct mount *maddr; 639 struct mount mount; 640 } *mhead = NULL; 641 struct mtab *mt; 642 643 for (mt = mhead; mt != NULL; mt = mt->next) 644 if (maddr == mt->maddr) 645 return (&mt->mount); 646 if ((mt = malloc(sizeof(struct mtab))) == NULL) 647 err(1, "malloc"); 648 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 649 mt->maddr = maddr; 650 mt->next = mhead; 651 mhead = mt; 652 return (&mt->mount); 653 } 654 655 void 656 mount_print(mp) 657 struct mount *mp; 658 { 659 int flags; 660 661 (void)printf("*** MOUNT %s %s on %s", ST.f_fstypename, 662 ST.f_mntfromname, ST.f_mntonname); 663 if ((flags = mp->mnt_flag) != 0) { 664 int i; 665 const char *sep = " ("; 666 667 for (i = 0; mnt_flags[i].m_flag; i++) { 668 if (flags & mnt_flags[i].m_flag) { 669 (void)printf("%s%s", sep, mnt_flags[i].m_name); 670 flags &= ~mnt_flags[i].m_flag; 671 sep = ","; 672 } 673 } 674 if (flags) 675 (void)printf("%sunknown_flags:%x", sep, flags); 676 (void)printf(")"); 677 } 678 (void)printf("\n"); 679 } 680 681 struct e_vnode * 682 loadvnodes(avnodes) 683 int *avnodes; 684 { 685 int mib[2]; 686 size_t copysize; 687 struct e_vnode *vnodebase; 688 689 if (memf != NULL) { 690 /* 691 * do it by hand 692 */ 693 return (kinfo_vnodes(avnodes)); 694 } 695 mib[0] = CTL_KERN; 696 mib[1] = KERN_VNODE; 697 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 698 err(1, "sysctl: KERN_VNODE"); 699 if ((vnodebase = malloc(copysize)) == NULL) 700 err(1, "malloc"); 701 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 702 err(1, "sysctl: KERN_VNODE"); 703 if (copysize % sizeof(struct e_vnode)) 704 errx(1, "vnode size mismatch"); 705 *avnodes = copysize / sizeof(struct e_vnode); 706 707 return (vnodebase); 708 } 709 710 /* 711 * simulate what a running kernel does in in kinfo_vnode 712 */ 713 struct e_vnode * 714 kinfo_vnodes(avnodes) 715 int *avnodes; 716 { 717 struct mntlist mountlist; 718 struct mount *mp, mount; 719 struct vnode *vp, vnode; 720 char *vbuf, *evbuf, *bp; 721 int num, numvnodes; 722 723 #define VPTRSZ sizeof(struct vnode *) 724 #define VNODESZ sizeof(struct vnode) 725 726 KGET(V_NUMV, numvnodes); 727 if ((vbuf = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 728 err(1, "malloc"); 729 bp = vbuf; 730 evbuf = vbuf + (numvnodes + 20) * (VPTRSZ + VNODESZ); 731 KGET(V_MOUNTLIST, mountlist); 732 for (num = 0, mp = mountlist.cqh_first;; 733 mp = mount.mnt_list.cqe_next) { 734 KGET2(mp, &mount, sizeof(mount), "mount entry"); 735 for (vp = mount.mnt_vnodelist.lh_first; 736 vp != NULL; vp = vnode.v_mntvnodes.le_next) { 737 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 738 if ((bp + VPTRSZ + VNODESZ) > evbuf) 739 /* XXX - should realloc */ 740 errx(1, "no more room for vnodes"); 741 memmove(bp, &vp, VPTRSZ); 742 bp += VPTRSZ; 743 memmove(bp, &vnode, VNODESZ); 744 bp += VNODESZ; 745 num++; 746 } 747 if (mp == mountlist.cqh_last) 748 break; 749 } 750 *avnodes = num; 751 return ((struct e_vnode *)vbuf); 752 } 753 754 const char hdr[]=" LINE RAW CAN OUT HWT LWT COL STATE SESS PGID DISC\n"; 755 int ttyspace = 128; 756 757 void 758 ttymode() 759 { 760 int ntty; 761 struct ttylist_head tty_head; 762 struct tty *tp, tty; 763 764 KGET(TTY_NTTY, ntty); 765 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 766 KGET(TTY_TTYLIST, tty_head); 767 (void)printf(hdr); 768 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 769 KGET2(tp, &tty, sizeof tty, "tty struct"); 770 ttyprt(&tty); 771 } 772 } 773 774 struct { 775 int flag; 776 char val; 777 } ttystates[] = { 778 { TS_ISOPEN, 'O'}, 779 { TS_DIALOUT, '>'}, 780 { TS_CARR_ON, 'C'}, 781 { TS_TIMEOUT, 'T'}, 782 { TS_FLUSH, 'F'}, 783 { TS_BUSY, 'B'}, 784 { TS_ASLEEP, 'A'}, 785 { TS_XCLUDE, 'X'}, 786 { TS_TTSTOP, 'S'}, 787 { TS_TBLOCK, 'K'}, 788 { TS_ASYNC, 'Y'}, 789 { TS_BKSL, 'D'}, 790 { TS_ERASE, 'E'}, 791 { TS_LNCH, 'L'}, 792 { TS_TYPEN, 'P'}, 793 { TS_CNTTB, 'N'}, 794 { 0, '\0'}, 795 }; 796 797 void 798 ttyprt(tp) 799 struct tty *tp; 800 { 801 int i, j; 802 pid_t pgid; 803 char *name, state[20], buffer; 804 struct linesw t_linesw; 805 806 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) 807 (void)printf("0x%3x:%1x ", major(tp->t_dev), minor(tp->t_dev)); 808 else 809 (void)printf("%-7s ", name); 810 (void)printf("%2d %3d ", tp->t_rawq.c_cc, tp->t_canq.c_cc); 811 (void)printf("%3d %4d %3d %7d ", tp->t_outq.c_cc, 812 tp->t_hiwat, tp->t_lowat, tp->t_column); 813 for (i = j = 0; ttystates[i].flag; i++) 814 if (tp->t_state&ttystates[i].flag) 815 state[j++] = ttystates[i].val; 816 if (tp->t_wopen) 817 state[j++] = 'W'; 818 if (j == 0) 819 state[j++] = '-'; 820 state[j] = '\0'; 821 (void)printf("%-6s %8lX", state, (u_long)tp->t_session); 822 pgid = 0; 823 if (tp->t_pgrp != NULL) 824 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 825 (void)printf("%6d ", pgid); 826 KGET2(tp->t_linesw, &t_linesw, sizeof(t_linesw), 827 "line discipline switch table"); 828 name = t_linesw.l_name; 829 for (;;) { 830 KGET2(name, &buffer, sizeof(buffer), "line discipline name"); 831 if (buffer == '\0') 832 break; 833 (void)putchar(buffer); 834 name++; 835 } 836 (void)putchar('\n'); 837 } 838 839 void 840 filemode() 841 { 842 struct file *fp; 843 struct file *addr; 844 char *buf, flagbuf[16], *fbp; 845 int len, maxfile, nfile; 846 static char *dtypes[] = { "???", "inode", "socket" }; 847 848 KGET(FNL_MAXFILE, maxfile); 849 if (totalflag) { 850 KGET(FNL_NFILE, nfile); 851 (void)printf("%3d/%3d files\n", nfile, maxfile); 852 return; 853 } 854 if (getfiles(&buf, &len) == -1) 855 return; 856 /* 857 * Getfiles returns in malloc'd memory a pointer to the first file 858 * structure, and then an array of file structs (whose addresses are 859 * derivable from the previous entry). 860 */ 861 addr = ((struct filelist *)buf)->lh_first; 862 fp = (struct file *)(buf + sizeof(struct filelist)); 863 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 864 865 (void)printf("%d/%d open files\n", nfile, maxfile); 866 (void)printf(" LOC TYPE FLG CNT MSG DATA OFFSET\n"); 867 for (; (char *)fp < buf + len; addr = fp->f_list.le_next, fp++) { 868 if ((unsigned)fp->f_type > DTYPE_SOCKET) 869 continue; 870 (void)printf("%lx ", (long)addr); 871 (void)printf("%-8.8s", dtypes[fp->f_type]); 872 fbp = flagbuf; 873 if (fp->f_flag & FREAD) 874 *fbp++ = 'R'; 875 if (fp->f_flag & FWRITE) 876 *fbp++ = 'W'; 877 if (fp->f_flag & FAPPEND) 878 *fbp++ = 'A'; 879 #ifdef FSHLOCK /* currently gone */ 880 if (fp->f_flag & FSHLOCK) 881 *fbp++ = 'S'; 882 if (fp->f_flag & FEXLOCK) 883 *fbp++ = 'X'; 884 #endif 885 if (fp->f_flag & FASYNC) 886 *fbp++ = 'I'; 887 *fbp = '\0'; 888 (void)printf("%6s %3d", flagbuf, fp->f_count); 889 (void)printf(" %3d", fp->f_msgcount); 890 (void)printf(" %8.1lx", (long)fp->f_data); 891 if (fp->f_offset < 0) 892 (void)printf(" %llx\n", (long long)fp->f_offset); 893 else 894 (void)printf(" %lld\n", (long long)fp->f_offset); 895 } 896 free(buf); 897 } 898 899 int 900 getfiles(abuf, alen) 901 char **abuf; 902 int *alen; 903 { 904 size_t len; 905 int mib[2]; 906 char *buf; 907 908 /* 909 * XXX 910 * Add emulation of KINFO_FILE here. 911 */ 912 if (memf != NULL) 913 errx(1, "files on dead kernel, not implemented\n"); 914 915 mib[0] = CTL_KERN; 916 mib[1] = KERN_FILE; 917 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 918 warn("sysctl: KERN_FILE"); 919 return (-1); 920 } 921 if ((buf = malloc(len)) == NULL) 922 err(1, "malloc"); 923 if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) { 924 warn("sysctl: KERN_FILE"); 925 return (-1); 926 } 927 *abuf = buf; 928 *alen = len; 929 return (0); 930 } 931 932 void 933 usage() 934 { 935 936 (void)fprintf(stderr, 937 "usage: pstat [-T|-f|-s|-t|-v] [-kn] [-M core] [-N system]\n"); 938 exit(1); 939 } 940
Indexes created Thu Sep 25 06:09:39 GMT 2025