pstat.c revision 1.64
1 /* $NetBSD: pstat.c,v 1.64 2002/02/22 04:27:30 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 1.64 2002/02/22 04:27:30 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 #include <sys/file.h> 57 #include <ufs/ufs/inode.h> 58 #define NFS 59 #include <sys/mount.h> 60 #undef NFS 61 #include <sys/uio.h> 62 #include <sys/namei.h> 63 #include <miscfs/genfs/layer.h> 64 #include <miscfs/union/union.h> 65 #undef _KERNEL 66 #include <sys/stat.h> 67 #include <nfs/nfsproto.h> 68 #include <nfs/rpcv2.h> 69 #include <nfs/nfs.h> 70 #include <nfs/nfsnode.h> 71 #include <sys/ioctl.h> 72 #include <sys/tty.h> 73 #include <sys/conf.h> 74 #include <sys/device.h> 75 76 #include <sys/sysctl.h> 77 78 #include <err.h> 79 #include <kvm.h> 80 #include <limits.h> 81 #include <nlist.h> 82 #include <stdio.h> 83 #include <stdlib.h> 84 #include <string.h> 85 #include <unistd.h> 86 87 #include "swapctl.h" 88 89 struct nlist nl[] = { 90 #define V_MOUNTLIST 0 91 { "_mountlist" }, /* address of head of mount list. */ 92 #define V_NUMV 1 93 { "_numvnodes" }, 94 #define FNL_NFILE 2 95 { "_nfiles" }, 96 #define FNL_MAXFILE 3 97 { "_maxfiles" }, 98 #define TTY_NTTY 4 99 { "_tty_count" }, 100 #define TTY_TTYLIST 5 101 { "_ttylist" }, 102 #define NLMANDATORY TTY_TTYLIST /* names up to here are mandatory */ 103 { "" } 104 }; 105 106 int usenumflag; 107 int totalflag; 108 int kflag; 109 char *nlistf = NULL; 110 char *memf = NULL; 111 kvm_t *kd; 112 113 struct { 114 int m_flag; 115 const char *m_name; 116 } mnt_flags[] = { 117 { MNT_RDONLY, "rdonly" }, 118 { MNT_SYNCHRONOUS, "sync" }, 119 { MNT_NOEXEC, "noexec" }, 120 { MNT_NOSUID, "nosuid" }, 121 { MNT_NODEV, "nodev" }, 122 { MNT_UNION, "union" }, 123 { MNT_ASYNC, "async" }, 124 { MNT_NOCOREDUMP, "nocoredump" }, 125 { MNT_NOATIME, "noatime" }, 126 { MNT_SYMPERM, "symperm" }, 127 { MNT_NODEVMTIME, "nodevmtime" }, 128 { MNT_SOFTDEP, "softdep" }, 129 { MNT_EXRDONLY, "exrdonly" }, 130 { MNT_EXPORTED, "exported" }, 131 { MNT_DEFEXPORTED, "defexported" }, 132 { MNT_EXPORTANON, "exportanon" }, 133 { MNT_EXKERB, "exkerb" }, 134 { MNT_EXNORESPORT, "exnoresport" }, 135 { MNT_EXPUBLIC, "expublic" }, 136 { MNT_LOCAL, "local" }, 137 { MNT_QUOTA, "quota" }, 138 { MNT_ROOTFS, "rootfs" }, 139 { MNT_UPDATE, "update" }, 140 { MNT_DELEXPORT, "delexport" }, 141 { MNT_RELOAD, "reload" }, 142 { MNT_FORCE, "force" }, 143 { MNT_GONE, "gone" }, 144 { MNT_UNMOUNT, "unmount" }, 145 { MNT_WANTRDWR, "wantrdwr" }, 146 { 0 } 147 }; 148 149 #define SVAR(var) __STRING(var) /* to force expansion */ 150 #define KGET(idx, var) \ 151 KGET1(idx, &var, sizeof(var), SVAR(var)) 152 #define KGET1(idx, p, s, msg) \ 153 KGET2(nl[idx].n_value, p, s, msg) 154 #define KGET2(addr, p, s, msg) do { \ 155 if (kvm_read(kd, (u_long)(addr), p, s) != s) \ 156 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 157 } while (/* CONSTCOND */0) 158 #define KGETRET(addr, p, s, msg) do { \ 159 if (kvm_read(kd, (u_long)(addr), p, s) != s) { \ 160 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 161 return (0); \ 162 } \ 163 } while (/* CONSTCOND */0) 164 165 void filemode __P((void)); 166 int getfiles __P((char **, int *)); 167 struct mount * 168 getmnt __P((struct mount *)); 169 char * kinfo_vnodes __P((int *)); 170 void layer_header __P((void)); 171 int layer_print __P((struct vnode *)); 172 char * loadvnodes __P((int *)); 173 int main __P((int, char **)); 174 void mount_print __P((struct mount *)); 175 void nfs_header __P((void)); 176 int nfs_print __P((struct vnode *)); 177 void ttymode __P((void)); 178 void ttyprt __P((struct tty *)); 179 void ufs_getflags __P((struct vnode *, struct inode *, char *)); 180 void ufs_header __P((void)); 181 int ufs_print __P((struct vnode *)); 182 int ext2fs_print __P((struct vnode *)); 183 void union_header __P((void)); 184 int union_print __P((struct vnode *)); 185 void usage __P((void)); 186 void vnode_header __P((void)); 187 void vnode_print __P((struct vnode *, struct vnode *)); 188 void vnodemode __P((void)); 189 190 int 191 main(argc, argv) 192 int argc; 193 char *argv[]; 194 { 195 int ch, i, quit, ret; 196 int fileflag, swapflag, ttyflag, vnodeflag; 197 gid_t egid = getegid(); 198 char buf[_POSIX2_LINE_MAX]; 199 200 setegid(getgid()); 201 fileflag = swapflag = ttyflag = vnodeflag = 0; 202 while ((ch = getopt(argc, argv, "TM:N:fiknstv")) != -1) 203 switch (ch) { 204 case 'f': 205 fileflag = 1; 206 break; 207 case 'M': 208 memf = optarg; 209 break; 210 case 'N': 211 nlistf = optarg; 212 break; 213 case 'n': 214 usenumflag = 1; 215 break; 216 case 's': 217 swapflag = 1; 218 break; 219 case 'T': 220 totalflag = 1; 221 break; 222 case 't': 223 ttyflag = 1; 224 break; 225 case 'k': 226 kflag = 1; 227 break; 228 case 'v': 229 case 'i': /* Backward compatibility. */ 230 vnodeflag = 1; 231 break; 232 default: 233 usage(); 234 } 235 argc -= optind; 236 argv += optind; 237 238 /* 239 * Discard setgid privileges. If not the running kernel, we toss 240 * them away totally so that bad guys can't print interesting stuff 241 * from kernel memory, otherwise switch back to kmem for the 242 * duration of the kvm_openfiles() call. 243 */ 244 if (nlistf != NULL || memf != NULL) 245 (void)setgid(getgid()); 246 else 247 (void)setegid(egid); 248 249 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0) 250 errx(1, "kvm_openfiles: %s", buf); 251 252 /* get rid of it now anyway */ 253 if (nlistf == NULL && memf == NULL) 254 (void)setgid(getgid()); 255 if ((ret = kvm_nlist(kd, nl)) != 0) { 256 if (ret == -1) 257 errx(1, "kvm_nlist: %s", kvm_geterr(kd)); 258 for (i = quit = 0; i <= NLMANDATORY; i++) 259 if (!nl[i].n_value) { 260 quit = 1; 261 warnx("undefined symbol: %s", nl[i].n_name); 262 } 263 if (quit) 264 exit(1); 265 } 266 if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag)) 267 usage(); 268 if (fileflag || totalflag) 269 filemode(); 270 if (vnodeflag || totalflag) 271 vnodemode(); 272 if (ttyflag) 273 ttymode(); 274 if (swapflag || totalflag) 275 list_swap(0, kflag, 0, totalflag, 1); 276 exit (0); 277 } 278 279 #define VPTRSZ sizeof(struct vnode *) 280 #define VNODESZ sizeof(struct vnode) 281 282 void 283 vnodemode() 284 { 285 char *e_vnodebase, *endvnode, *evp; 286 struct vnode *vp; 287 struct mount *maddr, *mp; 288 int numvnodes; 289 int (*vnode_fsprint) __P((struct vnode *)); /* per-fs data printer */ 290 291 mp = NULL; 292 e_vnodebase = loadvnodes(&numvnodes); 293 if (totalflag) { 294 (void)printf("%7d vnodes\n", numvnodes); 295 return; 296 } 297 endvnode = e_vnodebase + numvnodes * (VPTRSZ + VNODESZ); 298 (void)printf("%d active vnodes\n", numvnodes); 299 300 #define ST mp->mnt_stat 301 #define FSTYPE_IS(mp, name) \ 302 (strncmp((mp)->mnt_stat.f_fstypename, (name), MFSNAMELEN) == 0) 303 maddr = NULL; 304 vnode_fsprint = NULL; 305 for (evp = e_vnodebase; evp < endvnode; evp += VPTRSZ + VNODESZ) { 306 vp = (struct vnode *)(evp + VPTRSZ); 307 if (vp->v_mount != maddr) { 308 /* 309 * New filesystem 310 */ 311 if ((mp = getmnt(vp->v_mount)) == NULL) 312 continue; 313 maddr = vp->v_mount; 314 mount_print(mp); 315 vnode_header(); 316 if (FSTYPE_IS(mp, MOUNT_FFS) || 317 FSTYPE_IS(mp, MOUNT_MFS)) { 318 ufs_header(); 319 vnode_fsprint = ufs_print; 320 } else if (FSTYPE_IS(mp, MOUNT_NFS)) { 321 nfs_header(); 322 vnode_fsprint = nfs_print; 323 } else if (FSTYPE_IS(mp, MOUNT_EXT2FS)) { 324 ufs_header(); 325 vnode_fsprint = ext2fs_print; 326 } else if (FSTYPE_IS(mp, MOUNT_NULL) || 327 FSTYPE_IS(mp, MOUNT_OVERLAY) || 328 FSTYPE_IS(mp, MOUNT_UMAP)) { 329 layer_header(); 330 vnode_fsprint = layer_print; 331 } else if (FSTYPE_IS(mp, MOUNT_UNION)) { 332 union_header(); 333 vnode_fsprint = union_print; 334 } else 335 vnode_fsprint = NULL; 336 (void)printf("\n"); 337 } 338 vnode_print(*(struct vnode **)evp, vp); 339 if (VTOI(vp) != NULL && vnode_fsprint != NULL) 340 (*vnode_fsprint)(vp); 341 (void)printf("\n"); 342 } 343 free(e_vnodebase); 344 } 345 346 void 347 vnode_header() 348 { 349 350 (void)printf("ADDR TYP VFLAG USE HOLD TAG NPAGE"); 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 & VISTTY) 398 *fp++ = 'I'; 399 if (flag & VEXECMAP) 400 *fp++ = 'E'; 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 %5d", 419 (long)avnode, type, flags, (long)vp->v_usecount, 420 (long)vp->v_holdcnt, vp->v_tag, vp->v_uobj.uo_npages); 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 & IN_SPACECOUNTED) 457 *flags++ = 's'; 458 if (flag == 0) 459 *flags++ = '-'; 460 *flags = '\0'; 461 } 462 463 void 464 ufs_header() 465 { 466 467 (void)printf(" FILEID IFLAG RDEV|SZ"); 468 } 469 470 int 471 ufs_print(vp) 472 struct vnode *vp; 473 { 474 struct inode inode, *ip = &inode; 475 char flagbuf[16]; 476 char *name; 477 mode_t type; 478 479 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 480 ufs_getflags(vp, ip, flagbuf); 481 (void)printf(" %6d %5s", ip->i_number, flagbuf); 482 type = ip->i_ffs_mode & S_IFMT; 483 if (S_ISCHR(ip->i_ffs_mode) || S_ISBLK(ip->i_ffs_mode)) 484 if (usenumflag || 485 ((name = devname(ip->i_ffs_rdev, type)) == NULL)) 486 (void)printf(" %2d,%-2d", 487 major(ip->i_ffs_rdev), minor(ip->i_ffs_rdev)); 488 else 489 (void)printf(" %7s", name); 490 else 491 (void)printf(" %7lld", (long long)ip->i_ffs_size); 492 return (0); 493 } 494 495 int 496 ext2fs_print(vp) 497 struct vnode *vp; 498 { 499 struct inode inode, *ip = &inode; 500 char flagbuf[16]; 501 char *name; 502 mode_t type; 503 504 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 505 ufs_getflags(vp, ip, flagbuf); 506 (void)printf(" %6d %5s", ip->i_number, flagbuf); 507 type = ip->i_e2fs_mode & S_IFMT; 508 if (S_ISCHR(ip->i_e2fs_mode) || S_ISBLK(ip->i_e2fs_mode)) 509 if (usenumflag || 510 ((name = devname(ip->i_e2fs_rdev, type)) == NULL)) 511 (void)printf(" %2d,%-2d", 512 major(ip->i_e2fs_rdev), minor(ip->i_e2fs_rdev)); 513 else 514 (void)printf(" %7s", name); 515 else 516 (void)printf(" %7u", (u_int)ip->i_e2fs_size); 517 return (0); 518 } 519 520 void 521 nfs_header() 522 { 523 524 (void)printf(" FILEID NFLAG RDEV|SZ"); 525 } 526 527 int 528 nfs_print(vp) 529 struct vnode *vp; 530 { 531 struct nfsnode nfsnode, *np = &nfsnode; 532 char flagbuf[16], *flags = flagbuf; 533 int flag; 534 struct vattr va; 535 char *name; 536 mode_t type; 537 538 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 539 flag = np->n_flag; 540 if (flag & NFLUSHWANT) 541 *flags++ = 'W'; 542 if (flag & NFLUSHINPROG) 543 *flags++ = 'P'; 544 if (flag & NMODIFIED) 545 *flags++ = 'M'; 546 if (flag & NWRITEERR) 547 *flags++ = 'E'; 548 if (flag & NQNFSNONCACHE) 549 *flags++ = 'X'; 550 if (flag & NQNFSWRITE) 551 *flags++ = 'O'; 552 if (flag & NQNFSEVICTED) 553 *flags++ = 'G'; 554 if (flag & NACC) 555 *flags++ = 'A'; 556 if (flag & NUPD) 557 *flags++ = 'U'; 558 if (flag & NCHG) 559 *flags++ = 'C'; 560 if (flag == 0) 561 *flags++ = '-'; 562 *flags = '\0'; 563 564 KGETRET(np->n_vattr, &va, sizeof(va), "vnode attr"); 565 (void)printf(" %6ld %5s", (long)va.va_fileid, flagbuf); 566 switch (va.va_type) { 567 case VCHR: 568 type = S_IFCHR; 569 goto device; 570 571 case VBLK: 572 type = S_IFBLK; 573 device: 574 if (usenumflag || ((name = devname(va.va_rdev, type)) == NULL)) 575 (void)printf(" %2d,%-2d", 576 major(va.va_rdev), minor(va.va_rdev)); 577 else 578 (void)printf(" %7s", name); 579 break; 580 default: 581 (void)printf(" %7lld", (long long)np->n_size); 582 break; 583 } 584 return (0); 585 } 586 587 void 588 layer_header() 589 { 590 591 (void)printf(" LOWER"); 592 } 593 594 int 595 layer_print(vp) 596 struct vnode *vp; 597 { 598 struct layer_node lnode, *lp = &lnode; 599 600 KGETRET(VTOLAYER(vp), &lnode, sizeof(lnode), "layer vnode"); 601 602 (void)printf(" %8lx", (long)lp->layer_lowervp); 603 return (0); 604 } 605 606 void 607 union_header() 608 { 609 610 (void)printf(" UPPER LOWER"); 611 } 612 613 int 614 union_print(vp) 615 struct vnode *vp; 616 { 617 struct union_node unode, *up = &unode; 618 619 KGETRET(VTOUNION(vp), &unode, sizeof(unode), "vnode's unode"); 620 621 (void)printf(" %8lx %8lx", (long)up->un_uppervp, (long)up->un_lowervp); 622 return (0); 623 } 624 625 /* 626 * Given a pointer to a mount structure in kernel space, 627 * read it in and return a usable pointer to it. 628 */ 629 struct mount * 630 getmnt(maddr) 631 struct mount *maddr; 632 { 633 static struct mtab { 634 struct mtab *next; 635 struct mount *maddr; 636 struct mount mount; 637 } *mhead = NULL; 638 struct mtab *mt; 639 640 for (mt = mhead; mt != NULL; mt = mt->next) 641 if (maddr == mt->maddr) 642 return (&mt->mount); 643 if ((mt = malloc(sizeof(struct mtab))) == NULL) 644 err(1, "malloc"); 645 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 646 mt->maddr = maddr; 647 mt->next = mhead; 648 mhead = mt; 649 return (&mt->mount); 650 } 651 652 void 653 mount_print(mp) 654 struct mount *mp; 655 { 656 int flags; 657 658 (void)printf("*** MOUNT %s %s on %s", ST.f_fstypename, 659 ST.f_mntfromname, ST.f_mntonname); 660 if ((flags = mp->mnt_flag) != 0) { 661 int i; 662 const char *sep = " ("; 663 664 for (i = 0; mnt_flags[i].m_flag; i++) { 665 if (flags & mnt_flags[i].m_flag) { 666 (void)printf("%s%s", sep, mnt_flags[i].m_name); 667 flags &= ~mnt_flags[i].m_flag; 668 sep = ","; 669 } 670 } 671 if (flags) 672 (void)printf("%sunknown_flags:%x", sep, flags); 673 (void)printf(")"); 674 } 675 (void)printf("\n"); 676 } 677 678 char * 679 loadvnodes(avnodes) 680 int *avnodes; 681 { 682 int mib[2]; 683 size_t copysize; 684 char *vnodebase; 685 686 if (memf != NULL) { 687 /* 688 * do it by hand 689 */ 690 return (kinfo_vnodes(avnodes)); 691 } 692 mib[0] = CTL_KERN; 693 mib[1] = KERN_VNODE; 694 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 695 err(1, "sysctl: KERN_VNODE"); 696 if ((vnodebase = malloc(copysize)) == NULL) 697 err(1, "malloc"); 698 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 699 err(1, "sysctl: KERN_VNODE"); 700 if (copysize % (VPTRSZ + VNODESZ)) 701 errx(1, "vnode size mismatch"); 702 *avnodes = copysize / (VPTRSZ + VNODESZ); 703 704 return (vnodebase); 705 } 706 707 /* 708 * simulate what a running kernel does in in kinfo_vnode 709 */ 710 char * 711 kinfo_vnodes(avnodes) 712 int *avnodes; 713 { 714 struct mntlist mountlist; 715 struct mount *mp, mount; 716 struct vnode *vp, vnode; 717 char *beg, *bp, *ep; 718 int numvnodes; 719 720 KGET(V_NUMV, numvnodes); 721 if ((bp = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 722 err(1, "malloc"); 723 beg = bp; 724 ep = bp + (numvnodes + 20) * (VPTRSZ + VNODESZ); 725 KGET(V_MOUNTLIST, mountlist); 726 for (mp = mountlist.cqh_first;; 727 mp = mount.mnt_list.cqe_next) { 728 KGET2(mp, &mount, sizeof(mount), "mount entry"); 729 for (vp = mount.mnt_vnodelist.lh_first; 730 vp != NULL; vp = vnode.v_mntvnodes.le_next) { 731 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 732 if (bp + VPTRSZ + VNODESZ > ep) 733 /* XXX - should realloc */ 734 errx(1, "no more room for vnodes"); 735 memmove(bp, &vp, VPTRSZ); 736 bp += VPTRSZ; 737 memmove(bp, &vnode, VNODESZ); 738 bp += VNODESZ; 739 } 740 if (mp == mountlist.cqh_last) 741 break; 742 } 743 *avnodes = (bp - beg) / (VPTRSZ + VNODESZ); 744 return (beg); 745 } 746 747 const char hdr[] = 748 " LINE RAW CAN OUT HWT LWT COL STATE SESS PGID DISC\n"; 749 int ttyspace = 128; 750 751 void 752 ttymode() 753 { 754 int ntty; 755 struct ttylist_head tty_head; 756 struct tty *tp, tty; 757 758 KGET(TTY_NTTY, ntty); 759 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 760 KGET(TTY_TTYLIST, tty_head); 761 (void)printf(hdr); 762 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 763 KGET2(tp, &tty, sizeof tty, "tty struct"); 764 ttyprt(&tty); 765 } 766 } 767 768 struct { 769 int flag; 770 char val; 771 } ttystates[] = { 772 { TS_ISOPEN, 'O'}, 773 { TS_DIALOUT, '>'}, 774 { TS_CARR_ON, 'C'}, 775 { TS_TIMEOUT, 'T'}, 776 { TS_FLUSH, 'F'}, 777 { TS_BUSY, 'B'}, 778 { TS_ASLEEP, 'A'}, 779 { TS_XCLUDE, 'X'}, 780 { TS_TTSTOP, 'S'}, 781 { TS_TBLOCK, 'K'}, 782 { TS_ASYNC, 'Y'}, 783 { TS_BKSL, 'D'}, 784 { TS_ERASE, 'E'}, 785 { TS_LNCH, 'L'}, 786 { TS_TYPEN, 'P'}, 787 { TS_CNTTB, 'N'}, 788 { 0, '\0'}, 789 }; 790 791 void 792 ttyprt(tp) 793 struct tty *tp; 794 { 795 int i, j; 796 pid_t pgid; 797 char *name, state[20], buffer; 798 struct linesw t_linesw; 799 800 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) 801 (void)printf("0x%3x:%1x ", major(tp->t_dev), minor(tp->t_dev)); 802 else 803 (void)printf("%-7s ", name); 804 (void)printf("%2d %3d ", tp->t_rawq.c_cc, tp->t_canq.c_cc); 805 (void)printf("%3d %4d %3d %7d ", tp->t_outq.c_cc, 806 tp->t_hiwat, tp->t_lowat, tp->t_column); 807 for (i = j = 0; ttystates[i].flag; i++) 808 if (tp->t_state&ttystates[i].flag) 809 state[j++] = ttystates[i].val; 810 if (tp->t_wopen) 811 state[j++] = 'W'; 812 if (j == 0) 813 state[j++] = '-'; 814 state[j] = '\0'; 815 (void)printf("%-6s %8lX", state, (u_long)tp->t_session); 816 pgid = 0; 817 if (tp->t_pgrp != NULL) 818 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 819 (void)printf("%6d ", pgid); 820 KGET2(tp->t_linesw, &t_linesw, sizeof(t_linesw), 821 "line discipline switch table"); 822 name = t_linesw.l_name; 823 for (;;) { 824 KGET2(name, &buffer, sizeof(buffer), "line discipline name"); 825 if (buffer == '\0') 826 break; 827 (void)putchar(buffer); 828 name++; 829 } 830 (void)putchar('\n'); 831 } 832 833 void 834 filemode() 835 { 836 struct file *fp; 837 struct file *addr; 838 char *buf, flagbuf[16], *fbp; 839 int len, maxfile, nfile; 840 static char *dtypes[] = { "???", "inode", "socket" }; 841 842 KGET(FNL_MAXFILE, maxfile); 843 if (totalflag) { 844 KGET(FNL_NFILE, nfile); 845 (void)printf("%3d/%3d files\n", nfile, maxfile); 846 return; 847 } 848 if (getfiles(&buf, &len) == -1) 849 return; 850 /* 851 * Getfiles returns in malloc'd memory a pointer to the first file 852 * structure, and then an array of file structs (whose addresses are 853 * derivable from the previous entry). 854 */ 855 addr = ((struct filelist *)buf)->lh_first; 856 fp = (struct file *)(buf + sizeof(struct filelist)); 857 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 858 859 (void)printf("%d/%d open files\n", nfile, maxfile); 860 (void)printf(" LOC TYPE FLG CNT MSG DATA OFFSET\n"); 861 for (; (char *)fp < buf + len; addr = fp->f_list.le_next, fp++) { 862 if ((unsigned)fp->f_type > DTYPE_SOCKET) 863 continue; 864 (void)printf("%lx ", (long)addr); 865 (void)printf("%-8.8s", dtypes[fp->f_type]); 866 fbp = flagbuf; 867 if (fp->f_flag & FREAD) 868 *fbp++ = 'R'; 869 if (fp->f_flag & FWRITE) 870 *fbp++ = 'W'; 871 if (fp->f_flag & FAPPEND) 872 *fbp++ = 'A'; 873 #ifdef FSHLOCK /* currently gone */ 874 if (fp->f_flag & FSHLOCK) 875 *fbp++ = 'S'; 876 if (fp->f_flag & FEXLOCK) 877 *fbp++ = 'X'; 878 #endif 879 if (fp->f_flag & FASYNC) 880 *fbp++ = 'I'; 881 *fbp = '\0'; 882 (void)printf("%6s %3d", flagbuf, fp->f_count); 883 (void)printf(" %3d", fp->f_msgcount); 884 (void)printf(" %8.1lx", (long)fp->f_data); 885 if (fp->f_offset < 0) 886 (void)printf(" %llx\n", (long long)fp->f_offset); 887 else 888 (void)printf(" %lld\n", (long long)fp->f_offset); 889 } 890 free(buf); 891 } 892 893 int 894 getfiles(abuf, alen) 895 char **abuf; 896 int *alen; 897 { 898 size_t len; 899 int mib[2]; 900 char *buf; 901 902 /* 903 * XXX 904 * Add emulation of KINFO_FILE here. 905 */ 906 if (memf != NULL) 907 errx(1, "files on dead kernel, not implemented"); 908 909 mib[0] = CTL_KERN; 910 mib[1] = KERN_FILE; 911 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 912 warn("sysctl: KERN_FILE"); 913 return (-1); 914 } 915 if ((buf = malloc(len)) == NULL) 916 err(1, "malloc"); 917 if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) { 918 warn("sysctl: KERN_FILE"); 919 return (-1); 920 } 921 *abuf = buf; 922 *alen = len; 923 return (0); 924 } 925 926 void 927 usage() 928 { 929 930 (void)fprintf(stderr, 931 "usage: pstat [-T|-f|-s|-t|-v] [-kn] [-M core] [-N system]\n"); 932 exit(1); 933 } 934
Indexes created Tue Sep 23 13:09:54 GMT 2025