pstat.c revision 1.59
1 /* $NetBSD: pstat.c,v 1.59 2001/02/11 03:01:05 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 1.59 2001/02/11 03:01:05 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 char * kinfo_vnodes __P((int *)); 172 void layer_header __P((void)); 173 int layer_print __P((struct vnode *)); 174 char * 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 #define VPTRSZ sizeof(struct vnode *) 282 #define VNODESZ sizeof(struct vnode) 283 284 void 285 vnodemode() 286 { 287 char *e_vnodebase, *endvnode, *evp; 288 struct vnode *vp; 289 struct mount *maddr, *mp; 290 int numvnodes; 291 int (*vnode_fsprint) __P((struct vnode *)); /* per-fs data printer */ 292 293 mp = NULL; 294 e_vnodebase = loadvnodes(&numvnodes); 295 if (totalflag) { 296 (void)printf("%7d vnodes\n", numvnodes); 297 return; 298 } 299 endvnode = e_vnodebase + numvnodes * (VPTRSZ + VNODESZ); 300 (void)printf("%d active vnodes\n", numvnodes); 301 302 #define ST mp->mnt_stat 303 #define FSTYPE_IS(mp, name) \ 304 (strncmp((mp)->mnt_stat.f_fstypename, (name), MFSNAMELEN) == 0) 305 maddr = NULL; 306 vnode_fsprint = NULL; 307 for (evp = e_vnodebase; evp < endvnode; evp += VPTRSZ + VNODESZ) { 308 vp = (struct vnode *)(evp + VPTRSZ); 309 if (vp->v_mount != maddr) { 310 /* 311 * New filesystem 312 */ 313 if ((mp = getmnt(vp->v_mount)) == NULL) 314 continue; 315 maddr = vp->v_mount; 316 mount_print(mp); 317 vnode_header(); 318 if (FSTYPE_IS(mp, MOUNT_FFS) || 319 FSTYPE_IS(mp, MOUNT_MFS)) { 320 ufs_header(); 321 vnode_fsprint = ufs_print; 322 } else if (FSTYPE_IS(mp, MOUNT_NFS)) { 323 nfs_header(); 324 vnode_fsprint = nfs_print; 325 } else if (FSTYPE_IS(mp, MOUNT_EXT2FS)) { 326 ufs_header(); 327 vnode_fsprint = ext2fs_print; 328 } else if (FSTYPE_IS(mp, MOUNT_NULL) || 329 FSTYPE_IS(mp, MOUNT_OVERLAY) || 330 FSTYPE_IS(mp, MOUNT_UMAP)) { 331 layer_header(); 332 vnode_fsprint = layer_print; 333 } else if (FSTYPE_IS(mp, MOUNT_UNION)) { 334 union_header(); 335 vnode_fsprint = union_print; 336 } else 337 vnode_fsprint = NULL; 338 (void)printf("\n"); 339 } 340 vnode_print(*(struct vnode **)evp, vp); 341 if (VTOI(vp) != NULL && vnode_fsprint != NULL) 342 (*vnode_fsprint)(vp); 343 (void)printf("\n"); 344 } 345 free(e_vnodebase); 346 } 347 348 void 349 vnode_header() 350 { 351 352 (void)printf("ADDR TYP VFLAG USE HOLD TAG"); 353 } 354 355 void 356 vnode_print(avnode, vp) 357 struct vnode *avnode; 358 struct vnode *vp; 359 { 360 char *type, flags[16]; 361 char *fp = flags; 362 int flag; 363 364 /* 365 * set type 366 */ 367 switch (vp->v_type) { 368 case VNON: 369 type = "non"; break; 370 case VREG: 371 type = "reg"; break; 372 case VDIR: 373 type = "dir"; break; 374 case VBLK: 375 type = "blk"; break; 376 case VCHR: 377 type = "chr"; break; 378 case VLNK: 379 type = "lnk"; break; 380 case VSOCK: 381 type = "soc"; break; 382 case VFIFO: 383 type = "fif"; break; 384 case VBAD: 385 type = "bad"; break; 386 default: 387 type = "unk"; break; 388 } 389 /* 390 * gather flags 391 */ 392 flag = vp->v_flag; 393 if (flag & VROOT) 394 *fp++ = 'R'; 395 if (flag & VTEXT) 396 *fp++ = 'T'; 397 if (flag & VSYSTEM) 398 *fp++ = 'S'; 399 if (flag & VISTTY) 400 *fp++ = 'I'; 401 if (flag & VXLOCK) 402 *fp++ = 'L'; 403 if (flag & VXWANT) 404 *fp++ = 'W'; 405 if (flag & VBWAIT) 406 *fp++ = 'B'; 407 if (flag & VALIASED) 408 *fp++ = 'A'; 409 if (flag & VDIROP) 410 *fp++ = 'D'; 411 if (flag & VLAYER) 412 *fp++ = 'Y'; 413 if (flag & VONWORKLST) 414 *fp++ = 'O'; 415 if (flag == 0) 416 *fp++ = '-'; 417 *fp = '\0'; 418 (void)printf("%8lx %s %5s %4ld %4ld %3d", 419 (long)avnode, type, flags, (long)vp->v_usecount, 420 (long)vp->v_holdcnt, vp->v_tag); 421 } 422 423 void 424 ufs_getflags(vp, ip, flags) 425 struct vnode *vp; 426 struct inode *ip; 427 char *flags; 428 { 429 int flag; 430 431 /* 432 * XXX need to to locking state. 433 */ 434 435 flag = ip->i_flag; 436 if (flag & IN_ACCESS) 437 *flags++ = 'A'; 438 if (flag & IN_CHANGE) 439 *flags++ = 'C'; 440 if (flag & IN_UPDATE) 441 *flags++ = 'U'; 442 if (flag & IN_MODIFIED) 443 *flags++ = 'M'; 444 if (flag & IN_ACCESSED) 445 *flags++ = 'a'; 446 if (flag & IN_RENAME) 447 *flags++ = 'R'; 448 if (flag & IN_SHLOCK) 449 *flags++ = 'S'; 450 if (flag & IN_EXLOCK) 451 *flags++ = 'E'; 452 if (flag & IN_CLEANING) 453 *flags++ = 'c'; 454 if (flag & IN_ADIROP) 455 *flags++ = 'a'; 456 if (flag == 0) 457 *flags++ = '-'; 458 *flags = '\0'; 459 460 } 461 462 void 463 ufs_header() 464 { 465 466 (void)printf(" FILEID IFLAG RDEV|SZ"); 467 } 468 469 int 470 ufs_print(vp) 471 struct vnode *vp; 472 { 473 struct inode inode, *ip = &inode; 474 char flagbuf[16]; 475 char *name; 476 mode_t type; 477 478 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 479 ufs_getflags(vp, ip, flagbuf); 480 (void)printf(" %6d %5s", ip->i_number, flagbuf); 481 type = ip->i_ffs_mode & S_IFMT; 482 if (S_ISCHR(ip->i_ffs_mode) || S_ISBLK(ip->i_ffs_mode)) 483 if (usenumflag || 484 ((name = devname(ip->i_ffs_rdev, type)) == NULL)) 485 (void)printf(" %2d,%-2d", 486 major(ip->i_ffs_rdev), minor(ip->i_ffs_rdev)); 487 else 488 (void)printf(" %7s", name); 489 else 490 (void)printf(" %7lld", (long long)ip->i_ffs_size); 491 return (0); 492 } 493 494 int 495 ext2fs_print(vp) 496 struct vnode *vp; 497 { 498 struct inode inode, *ip = &inode; 499 char flagbuf[16]; 500 char *name; 501 mode_t type; 502 503 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 504 ufs_getflags(vp, ip, flagbuf); 505 (void)printf(" %6d %5s", ip->i_number, flagbuf); 506 type = ip->i_e2fs_mode & S_IFMT; 507 if (S_ISCHR(ip->i_e2fs_mode) || S_ISBLK(ip->i_e2fs_mode)) 508 if (usenumflag || 509 ((name = devname(ip->i_e2fs_rdev, type)) == NULL)) 510 (void)printf(" %2d,%-2d", 511 major(ip->i_e2fs_rdev), minor(ip->i_e2fs_rdev)); 512 else 513 (void)printf(" %7s", name); 514 else 515 (void)printf(" %7u", (u_int)ip->i_e2fs_size); 516 return (0); 517 } 518 519 void 520 nfs_header() 521 { 522 523 (void)printf(" FILEID NFLAG RDEV|SZ"); 524 } 525 526 int 527 nfs_print(vp) 528 struct vnode *vp; 529 { 530 struct nfsnode nfsnode, *np = &nfsnode; 531 char flagbuf[16], *flags = flagbuf; 532 int flag; 533 struct vattr va; 534 char *name; 535 mode_t type; 536 537 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 538 flag = np->n_flag; 539 if (flag & NFLUSHWANT) 540 *flags++ = 'W'; 541 if (flag & NFLUSHINPROG) 542 *flags++ = 'P'; 543 if (flag & NMODIFIED) 544 *flags++ = 'M'; 545 if (flag & NWRITEERR) 546 *flags++ = 'E'; 547 if (flag & NQNFSNONCACHE) 548 *flags++ = 'X'; 549 if (flag & NQNFSWRITE) 550 *flags++ = 'O'; 551 if (flag & NQNFSEVICTED) 552 *flags++ = 'G'; 553 if (flag & NACC) 554 *flags++ = 'A'; 555 if (flag & NUPD) 556 *flags++ = 'U'; 557 if (flag & NCHG) 558 *flags++ = 'C'; 559 if (flag == 0) 560 *flags++ = '-'; 561 *flags = '\0'; 562 563 KGETRET(np->n_vattr, &va, sizeof(va), "vnode attr"); 564 (void)printf(" %6ld %5s", (long)va.va_fileid, flagbuf); 565 switch (va.va_type) { 566 case VCHR: 567 type = S_IFCHR; 568 goto device; 569 570 case VBLK: 571 type = S_IFBLK; 572 device: 573 if (usenumflag || ((name = devname(va.va_rdev, type)) == NULL)) 574 (void)printf(" %2d,%-2d", 575 major(va.va_rdev), minor(va.va_rdev)); 576 else 577 (void)printf(" %7s", name); 578 break; 579 default: 580 (void)printf(" %7lld", (long long)np->n_size); 581 break; 582 } 583 return (0); 584 } 585 586 void 587 layer_header() 588 { 589 590 (void)printf(" LOWER"); 591 } 592 593 int 594 layer_print(vp) 595 struct vnode *vp; 596 { 597 struct layer_node lnode, *lp = &lnode; 598 599 KGETRET(VTOLAYER(vp), &lnode, sizeof(lnode), "layer vnode"); 600 601 (void)printf(" %8lx", (long)lp->layer_lowervp); 602 return (0); 603 } 604 605 void 606 union_header() 607 { 608 609 (void)printf(" UPPER LOWER"); 610 } 611 612 int 613 union_print(vp) 614 struct vnode *vp; 615 { 616 struct union_node unode, *up = &unode; 617 618 KGETRET(VTOUNION(vp), &unode, sizeof(unode), "vnode's unode"); 619 620 (void)printf(" %8lx %8lx", (long)up->un_uppervp, (long)up->un_lowervp); 621 return (0); 622 } 623 624 /* 625 * Given a pointer to a mount structure in kernel space, 626 * read it in and return a usable pointer to it. 627 */ 628 struct mount * 629 getmnt(maddr) 630 struct mount *maddr; 631 { 632 static struct mtab { 633 struct mtab *next; 634 struct mount *maddr; 635 struct mount mount; 636 } *mhead = NULL; 637 struct mtab *mt; 638 639 for (mt = mhead; mt != NULL; mt = mt->next) 640 if (maddr == mt->maddr) 641 return (&mt->mount); 642 if ((mt = malloc(sizeof(struct mtab))) == NULL) 643 err(1, "malloc"); 644 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 645 mt->maddr = maddr; 646 mt->next = mhead; 647 mhead = mt; 648 return (&mt->mount); 649 } 650 651 void 652 mount_print(mp) 653 struct mount *mp; 654 { 655 int flags; 656 657 (void)printf("*** MOUNT %s %s on %s", ST.f_fstypename, 658 ST.f_mntfromname, ST.f_mntonname); 659 if ((flags = mp->mnt_flag) != 0) { 660 int i; 661 const char *sep = " ("; 662 663 for (i = 0; mnt_flags[i].m_flag; i++) { 664 if (flags & mnt_flags[i].m_flag) { 665 (void)printf("%s%s", sep, mnt_flags[i].m_name); 666 flags &= ~mnt_flags[i].m_flag; 667 sep = ","; 668 } 669 } 670 if (flags) 671 (void)printf("%sunknown_flags:%x", sep, flags); 672 (void)printf(")"); 673 } 674 (void)printf("\n"); 675 } 676 677 char * 678 loadvnodes(avnodes) 679 int *avnodes; 680 { 681 int mib[2]; 682 size_t copysize; 683 char *vnodebase; 684 685 if (memf != NULL) { 686 /* 687 * do it by hand 688 */ 689 return (kinfo_vnodes(avnodes)); 690 } 691 mib[0] = CTL_KERN; 692 mib[1] = KERN_VNODE; 693 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 694 err(1, "sysctl: KERN_VNODE"); 695 if ((vnodebase = malloc(copysize)) == NULL) 696 err(1, "malloc"); 697 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 698 err(1, "sysctl: KERN_VNODE"); 699 if (copysize % (VPTRSZ + VNODESZ)) 700 errx(1, "vnode size mismatch"); 701 *avnodes = copysize / (VPTRSZ + VNODESZ); 702 703 return (vnodebase); 704 } 705 706 /* 707 * simulate what a running kernel does in in kinfo_vnode 708 */ 709 char * 710 kinfo_vnodes(avnodes) 711 int *avnodes; 712 { 713 struct mntlist mountlist; 714 struct mount *mp, mount; 715 struct vnode *vp, vnode; 716 char *beg, *bp, *ep; 717 int numvnodes; 718 719 KGET(V_NUMV, numvnodes); 720 if ((bp = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 721 err(1, "malloc"); 722 beg = bp; 723 ep = bp + (numvnodes + 20) * (VPTRSZ + VNODESZ); 724 KGET(V_MOUNTLIST, mountlist); 725 for (mp = mountlist.cqh_first;; 726 mp = mount.mnt_list.cqe_next) { 727 KGET2(mp, &mount, sizeof(mount), "mount entry"); 728 for (vp = mount.mnt_vnodelist.lh_first; 729 vp != NULL; vp = vnode.v_mntvnodes.le_next) { 730 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 731 if (bp + VPTRSZ + VNODESZ > ep) 732 /* XXX - should realloc */ 733 errx(1, "no more room for vnodes"); 734 memmove(bp, &vp, VPTRSZ); 735 bp += VPTRSZ; 736 memmove(bp, &vnode, VNODESZ); 737 bp += VNODESZ; 738 } 739 if (mp == mountlist.cqh_last) 740 break; 741 } 742 *avnodes = (bp - beg) / (VPTRSZ + VNODESZ); 743 return (beg); 744 } 745 746 const char hdr[]=" LINE RAW CAN OUT HWT LWT COL STATE SESS PGID DISC\n"; 747 int ttyspace = 128; 748 749 void 750 ttymode() 751 { 752 int ntty; 753 struct ttylist_head tty_head; 754 struct tty *tp, tty; 755 756 KGET(TTY_NTTY, ntty); 757 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 758 KGET(TTY_TTYLIST, tty_head); 759 (void)printf(hdr); 760 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 761 KGET2(tp, &tty, sizeof tty, "tty struct"); 762 ttyprt(&tty); 763 } 764 } 765 766 struct { 767 int flag; 768 char val; 769 } ttystates[] = { 770 { TS_ISOPEN, 'O'}, 771 { TS_DIALOUT, '>'}, 772 { TS_CARR_ON, 'C'}, 773 { TS_TIMEOUT, 'T'}, 774 { TS_FLUSH, 'F'}, 775 { TS_BUSY, 'B'}, 776 { TS_ASLEEP, 'A'}, 777 { TS_XCLUDE, 'X'}, 778 { TS_TTSTOP, 'S'}, 779 { TS_TBLOCK, 'K'}, 780 { TS_ASYNC, 'Y'}, 781 { TS_BKSL, 'D'}, 782 { TS_ERASE, 'E'}, 783 { TS_LNCH, 'L'}, 784 { TS_TYPEN, 'P'}, 785 { TS_CNTTB, 'N'}, 786 { 0, '\0'}, 787 }; 788 789 void 790 ttyprt(tp) 791 struct tty *tp; 792 { 793 int i, j; 794 pid_t pgid; 795 char *name, state[20], buffer; 796 struct linesw t_linesw; 797 798 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) 799 (void)printf("0x%3x:%1x ", major(tp->t_dev), minor(tp->t_dev)); 800 else 801 (void)printf("%-7s ", name); 802 (void)printf("%2d %3d ", tp->t_rawq.c_cc, tp->t_canq.c_cc); 803 (void)printf("%3d %4d %3d %7d ", tp->t_outq.c_cc, 804 tp->t_hiwat, tp->t_lowat, tp->t_column); 805 for (i = j = 0; ttystates[i].flag; i++) 806 if (tp->t_state&ttystates[i].flag) 807 state[j++] = ttystates[i].val; 808 if (tp->t_wopen) 809 state[j++] = 'W'; 810 if (j == 0) 811 state[j++] = '-'; 812 state[j] = '\0'; 813 (void)printf("%-6s %8lX", state, (u_long)tp->t_session); 814 pgid = 0; 815 if (tp->t_pgrp != NULL) 816 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 817 (void)printf("%6d ", pgid); 818 KGET2(tp->t_linesw, &t_linesw, sizeof(t_linesw), 819 "line discipline switch table"); 820 name = t_linesw.l_name; 821 for (;;) { 822 KGET2(name, &buffer, sizeof(buffer), "line discipline name"); 823 if (buffer == '\0') 824 break; 825 (void)putchar(buffer); 826 name++; 827 } 828 (void)putchar('\n'); 829 } 830 831 void 832 filemode() 833 { 834 struct file *fp; 835 struct file *addr; 836 char *buf, flagbuf[16], *fbp; 837 int len, maxfile, nfile; 838 static char *dtypes[] = { "???", "inode", "socket" }; 839 840 KGET(FNL_MAXFILE, maxfile); 841 if (totalflag) { 842 KGET(FNL_NFILE, nfile); 843 (void)printf("%3d/%3d files\n", nfile, maxfile); 844 return; 845 } 846 if (getfiles(&buf, &len) == -1) 847 return; 848 /* 849 * Getfiles returns in malloc'd memory a pointer to the first file 850 * structure, and then an array of file structs (whose addresses are 851 * derivable from the previous entry). 852 */ 853 addr = ((struct filelist *)buf)->lh_first; 854 fp = (struct file *)(buf + sizeof(struct filelist)); 855 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 856 857 (void)printf("%d/%d open files\n", nfile, maxfile); 858 (void)printf(" LOC TYPE FLG CNT MSG DATA OFFSET\n"); 859 for (; (char *)fp < buf + len; addr = fp->f_list.le_next, fp++) { 860 if ((unsigned)fp->f_type > DTYPE_SOCKET) 861 continue; 862 (void)printf("%lx ", (long)addr); 863 (void)printf("%-8.8s", dtypes[fp->f_type]); 864 fbp = flagbuf; 865 if (fp->f_flag & FREAD) 866 *fbp++ = 'R'; 867 if (fp->f_flag & FWRITE) 868 *fbp++ = 'W'; 869 if (fp->f_flag & FAPPEND) 870 *fbp++ = 'A'; 871 #ifdef FSHLOCK /* currently gone */ 872 if (fp->f_flag & FSHLOCK) 873 *fbp++ = 'S'; 874 if (fp->f_flag & FEXLOCK) 875 *fbp++ = 'X'; 876 #endif 877 if (fp->f_flag & FASYNC) 878 *fbp++ = 'I'; 879 *fbp = '\0'; 880 (void)printf("%6s %3d", flagbuf, fp->f_count); 881 (void)printf(" %3d", fp->f_msgcount); 882 (void)printf(" %8.1lx", (long)fp->f_data); 883 if (fp->f_offset < 0) 884 (void)printf(" %llx\n", (long long)fp->f_offset); 885 else 886 (void)printf(" %lld\n", (long long)fp->f_offset); 887 } 888 free(buf); 889 } 890 891 int 892 getfiles(abuf, alen) 893 char **abuf; 894 int *alen; 895 { 896 size_t len; 897 int mib[2]; 898 char *buf; 899 900 /* 901 * XXX 902 * Add emulation of KINFO_FILE here. 903 */ 904 if (memf != NULL) 905 errx(1, "files on dead kernel, not implemented\n"); 906 907 mib[0] = CTL_KERN; 908 mib[1] = KERN_FILE; 909 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 910 warn("sysctl: KERN_FILE"); 911 return (-1); 912 } 913 if ((buf = malloc(len)) == NULL) 914 err(1, "malloc"); 915 if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) { 916 warn("sysctl: KERN_FILE"); 917 return (-1); 918 } 919 *abuf = buf; 920 *alen = len; 921 return (0); 922 } 923 924 void 925 usage() 926 { 927 928 (void)fprintf(stderr, 929 "usage: pstat [-T|-f|-s|-t|-v] [-kn] [-M core] [-N system]\n"); 930 exit(1); 931 } 932
Indexes created Fri Sep 26 20:09:58 GMT 2025