pstat.c revision 1.80
1 /* $NetBSD: pstat.c,v 1.80 2003/02/10 23:58:27 mrg 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 1.80 2003/02/10 23:58:27 mrg 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/ucred.h> 54 #define _KERNEL 55 #include <sys/file.h> 56 #include <ufs/ufs/inode.h> 57 #define NFS 58 #include <sys/mount.h> 59 #undef NFS 60 #include <sys/uio.h> 61 #include <sys/namei.h> 62 #include <miscfs/genfs/layer.h> 63 #include <miscfs/union/union.h> 64 #undef _KERNEL 65 #include <sys/stat.h> 66 #include <nfs/nfsproto.h> 67 #include <nfs/rpcv2.h> 68 #include <nfs/nfs.h> 69 #include <nfs/nfsnode.h> 70 #include <sys/ioctl.h> 71 #include <sys/tty.h> 72 #include <sys/conf.h> 73 #include <sys/device.h> 74 75 #include <sys/sysctl.h> 76 77 #include <err.h> 78 #include <kvm.h> 79 #include <limits.h> 80 #include <nlist.h> 81 #include <stdio.h> 82 #include <stdlib.h> 83 #include <string.h> 84 #include <unistd.h> 85 86 #include "swapctl.h" 87 88 struct nlist nl[] = { 89 #define V_MOUNTLIST 0 90 { "_mountlist" }, /* address of head of mount list. */ 91 #define V_NUMV 1 92 { "_numvnodes" }, 93 #define FNL_NFILE 2 94 { "_nfiles" }, 95 #define FNL_MAXFILE 3 96 { "_maxfiles" }, 97 #define TTY_NTTY 4 98 { "_tty_count" }, 99 #define TTY_TTYLIST 5 100 { "_ttylist" }, 101 #define NLMANDATORY TTY_TTYLIST /* names up to here are mandatory */ 102 { "" } 103 }; 104 105 int usenumflag; 106 int totalflag; 107 int kflag; 108 char *nlistf = NULL; 109 char *memf = NULL; 110 kvm_t *kd; 111 112 static const struct { 113 u_int m_flag; 114 u_int m_visible; 115 const char *m_name; 116 } mnt_flags[] = { 117 __MNT_FLAGS 118 }; 119 120 struct flagbit_desc { 121 u_int fd_flags; 122 char fd_mark; 123 }; 124 125 #define SVAR(var) __STRING(var) /* to force expansion */ 126 #define KGET(idx, var) \ 127 KGET1(idx, &var, sizeof(var), SVAR(var)) 128 #define KGET1(idx, p, s, msg) \ 129 KGET2(nl[idx].n_value, p, s, msg) 130 #define KGET2(addr, p, s, msg) do { \ 131 if (kvm_read(kd, (u_long)(addr), p, s) != s) \ 132 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 133 } while (/* CONSTCOND */0) 134 #define KGETRET(addr, p, s, msg) do { \ 135 if (kvm_read(kd, (u_long)(addr), p, s) != s) { \ 136 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 137 return (0); \ 138 } \ 139 } while (/* CONSTCOND */0) 140 141 #if 1 /* This is copied from vmstat/vmstat.c */ 142 /* 143 * Print single word. `ovflow' is number of characters didn't fit 144 * on the last word. `fmt' is a format string to print this word. 145 * It must contain asterisk for field width. `width' is a width 146 * occupied by this word. `fixed' is a number of constant chars in 147 * `fmt'. `val' is a value to be printed using format string `fmt'. 148 */ 149 #define PRWORD(ovflw, fmt, width, fixed, val) do { \ 150 (ovflw) += printf((fmt), \ 151 (width) - (fixed) - (ovflw) > 0 ? \ 152 (width) - (fixed) - (ovflw) : 0, \ 153 (val)) - (width); \ 154 if ((ovflw) < 0) \ 155 (ovflw) = 0; \ 156 } while (/* CONSTCOND */0) 157 #endif 158 159 void filemode __P((void)); 160 int getfiles __P((char **, int *)); 161 int getflags __P((const struct flagbit_desc *, char *, u_int)); 162 struct mount * 163 getmnt __P((struct mount *)); 164 void kinfo_vnodes __P((int *, char **)); 165 void layer_header __P((void)); 166 int layer_print __P((struct vnode *, int)); 167 void loadvnodes __P((int *, char **)); 168 int main __P((int, char **)); 169 void mount_print __P((struct mount *)); 170 void nfs_header __P((void)); 171 int nfs_print __P((struct vnode *, int)); 172 void ttymode __P((void)); 173 void ttyprt __P((struct tty *)); 174 void ufs_header __P((void)); 175 int ufs_print __P((struct vnode *, int)); 176 int ext2fs_print __P((struct vnode *, int)); 177 void union_header __P((void)); 178 int union_print __P((struct vnode *, int)); 179 void usage __P((void)); 180 void vnode_header __P((void)); 181 int vnode_print __P((struct vnode *, struct vnode *)); 182 void vnodemode __P((void)); 183 184 int 185 main(argc, argv) 186 int argc; 187 char *argv[]; 188 { 189 int ch, i, quit, ret; 190 int fileflag, swapflag, ttyflag, vnodeflag; 191 gid_t egid = getegid(); 192 char buf[_POSIX2_LINE_MAX]; 193 194 setegid(getgid()); 195 fileflag = swapflag = ttyflag = vnodeflag = 0; 196 while ((ch = getopt(argc, argv, "TM:N:fiknstv")) != -1) 197 switch (ch) { 198 case 'f': 199 fileflag = 1; 200 break; 201 case 'M': 202 memf = optarg; 203 break; 204 case 'N': 205 nlistf = optarg; 206 break; 207 case 'n': 208 usenumflag = 1; 209 break; 210 case 's': 211 swapflag = 1; 212 break; 213 case 'T': 214 totalflag = 1; 215 break; 216 case 't': 217 ttyflag = 1; 218 break; 219 case 'k': 220 kflag = 1; 221 break; 222 case 'v': 223 case 'i': /* Backward compatibility. */ 224 vnodeflag = 1; 225 break; 226 default: 227 usage(); 228 } 229 argc -= optind; 230 argv += optind; 231 232 /* 233 * Discard setgid privileges. If not the running kernel, we toss 234 * them away totally so that bad guys can't print interesting stuff 235 * from kernel memory, otherwise switch back to kmem for the 236 * duration of the kvm_openfiles() call. 237 */ 238 if (nlistf != NULL || memf != NULL) 239 (void)setgid(getgid()); 240 else 241 (void)setegid(egid); 242 243 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0) 244 errx(1, "kvm_openfiles: %s", buf); 245 246 /* get rid of it now anyway */ 247 if (nlistf == NULL && memf == NULL) 248 (void)setgid(getgid()); 249 if ((ret = kvm_nlist(kd, nl)) != 0) { 250 if (ret == -1) 251 errx(1, "kvm_nlist: %s", kvm_geterr(kd)); 252 for (i = quit = 0; i <= NLMANDATORY; i++) 253 if (!nl[i].n_value) { 254 quit = 1; 255 warnx("undefined symbol: %s", nl[i].n_name); 256 } 257 if (quit) 258 exit(1); 259 } 260 if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag)) 261 usage(); 262 if (fileflag || totalflag) 263 filemode(); 264 if (vnodeflag || totalflag) 265 vnodemode(); 266 if (ttyflag) 267 ttymode(); 268 if (swapflag || totalflag) 269 list_swap(0, kflag, 0, totalflag, 1); 270 exit(0); 271 } 272 273 #define VPTRSZ sizeof(struct vnode *) 274 #define VNODESZ sizeof(struct vnode) 275 #define PTRSTRWIDTH ((int)sizeof(void *) * 2) /* Width of resulting string 276 when pointer is printed 277 in hexadecimal. */ 278 279 void 280 vnodemode() 281 { 282 char *e_vnodebase, *endvnode, *evp; 283 struct vnode *vp; 284 struct mount *maddr, *mp; 285 int numvnodes, ovflw; 286 int (*vnode_fsprint) 287 __P((struct vnode *, int)); /* per-fs data printer */ 288 289 mp = NULL; 290 if (totalflag) { 291 loadvnodes(&numvnodes, NULL); 292 (void)printf("%7d vnodes\n", numvnodes); 293 return; 294 } 295 loadvnodes(&numvnodes, &e_vnodebase); 296 endvnode = e_vnodebase + numvnodes * (VPTRSZ + VNODESZ); 297 (void)printf("%d active vnodes\n", numvnodes); 298 299 #define ST mp->mnt_stat 300 #define FSTYPE_IS(mp, name) \ 301 (strncmp((mp)->mnt_stat.f_fstypename, (name), MFSNAMELEN) == 0) 302 maddr = NULL; 303 vnode_fsprint = NULL; 304 for (evp = e_vnodebase; evp < endvnode; evp += VPTRSZ + VNODESZ) { 305 vp = (struct vnode *)(evp + VPTRSZ); 306 if (vp->v_mount != maddr) { 307 /* 308 * New filesystem 309 */ 310 if ((mp = getmnt(vp->v_mount)) == NULL) 311 continue; 312 maddr = vp->v_mount; 313 mount_print(mp); 314 vnode_header(); 315 if (FSTYPE_IS(mp, MOUNT_FFS) || 316 FSTYPE_IS(mp, MOUNT_MFS)) { 317 ufs_header(); 318 vnode_fsprint = ufs_print; 319 } else if (FSTYPE_IS(mp, MOUNT_NFS)) { 320 nfs_header(); 321 vnode_fsprint = nfs_print; 322 } else if (FSTYPE_IS(mp, MOUNT_EXT2FS)) { 323 ufs_header(); 324 vnode_fsprint = ext2fs_print; 325 } else if (FSTYPE_IS(mp, MOUNT_NULL) || 326 FSTYPE_IS(mp, MOUNT_OVERLAY) || 327 FSTYPE_IS(mp, MOUNT_UMAP)) { 328 layer_header(); 329 vnode_fsprint = layer_print; 330 } else if (FSTYPE_IS(mp, MOUNT_UNION)) { 331 union_header(); 332 vnode_fsprint = union_print; 333 } else 334 vnode_fsprint = NULL; 335 (void)printf("\n"); 336 } 337 ovflw = vnode_print(*(struct vnode **)evp, vp); 338 if (VTOI(vp) != NULL && vnode_fsprint != NULL) 339 (*vnode_fsprint)(vp, ovflw); 340 (void)printf("\n"); 341 } 342 free(e_vnodebase); 343 } 344 345 int 346 getflags(fd, p, flags) 347 const struct flagbit_desc *fd; 348 char *p; 349 u_int flags; 350 { 351 char *q = p; 352 353 if (flags == 0) { 354 *p++ = '-'; 355 *p = '\0'; 356 return (0); 357 } 358 359 for (; fd->fd_flags != 0; fd++) 360 if ((flags & fd->fd_flags) != 0) 361 *p++ = fd->fd_mark; 362 *p = '\0'; 363 return (p - q); 364 } 365 366 const struct flagbit_desc vnode_flags[] = { 367 { VROOT, 'R' }, 368 { VTEXT, 'T' }, 369 { VSYSTEM, 'S' }, 370 { VISTTY, 'I' }, 371 { VEXECMAP, 'E' }, 372 { VXLOCK, 'L' }, 373 { VXWANT, 'W' }, 374 { VBWAIT, 'B' }, 375 { VALIASED, 'A' }, 376 { VDIROP, 'D' }, 377 { VLAYER, 'Y' }, 378 { VONWORKLST, 'O' }, 379 { 0, '\0' }, 380 }; 381 382 void 383 vnode_header() 384 { 385 386 (void)printf("%-*s TYP VFLAG USE HOLD TAG NPAGE", 387 PTRSTRWIDTH, "ADDR"); 388 } 389 390 int 391 vnode_print(avnode, vp) 392 struct vnode *avnode; 393 struct vnode *vp; 394 { 395 char *type, flags[sizeof(vnode_flags) / sizeof(vnode_flags[0])]; 396 int ovflw; 397 398 /* 399 * set type 400 */ 401 switch (vp->v_type) { 402 case VNON: 403 type = "non"; break; 404 case VREG: 405 type = "reg"; break; 406 case VDIR: 407 type = "dir"; break; 408 case VBLK: 409 type = "blk"; break; 410 case VCHR: 411 type = "chr"; break; 412 case VLNK: 413 type = "lnk"; break; 414 case VSOCK: 415 type = "soc"; break; 416 case VFIFO: 417 type = "fif"; break; 418 case VBAD: 419 type = "bad"; break; 420 default: 421 type = "unk"; break; 422 } 423 /* 424 * gather flags 425 */ 426 (void)getflags(vnode_flags, flags, vp->v_flag); 427 428 ovflw = 0; 429 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)avnode); 430 PRWORD(ovflw, " %*s", 4, 1, type); 431 PRWORD(ovflw, " %*s", 6, 1, flags); 432 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_usecount); 433 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_holdcnt); 434 PRWORD(ovflw, " %*d", 4, 1, vp->v_tag); 435 PRWORD(ovflw, " %*d", 6, 1, vp->v_uobj.uo_npages); 436 return (ovflw); 437 } 438 439 const struct flagbit_desc ufs_flags[] = { 440 { IN_ACCESS, 'A' }, 441 { IN_CHANGE, 'C' }, 442 { IN_UPDATE, 'U' }, 443 { IN_MODIFIED, 'M' }, 444 { IN_ACCESSED, 'a' }, 445 { IN_RENAME, 'R' }, 446 { IN_SHLOCK, 'S' }, 447 { IN_EXLOCK, 'E' }, 448 { IN_CLEANING, 'c' }, 449 { IN_ADIROP, 'D' }, 450 { IN_SPACECOUNTED, 's' }, 451 { 0, '\0' }, 452 }; 453 454 void 455 ufs_header() 456 { 457 458 (void)printf(" FILEID IFLAG RDEV|SZ"); 459 } 460 461 int 462 ufs_print(vp, ovflw) 463 struct vnode *vp; 464 int ovflw; 465 { 466 struct inode inode, *ip = &inode; 467 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 468 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 469 char *name; 470 mode_t type; 471 472 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 473 474 /* 475 * XXX need to to locking state. 476 */ 477 478 (void)getflags(ufs_flags, flags, ip->i_flag); 479 PRWORD(ovflw, " %*d", 7, 1, ip->i_number); 480 PRWORD(ovflw, " %*s", 6, 1, flags); 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 snprintf(dev, sizeof(dev), "%d,%d", 486 major(ip->i_ffs_rdev), minor(ip->i_ffs_rdev)); 487 name = dev; 488 } 489 PRWORD(ovflw, " %*s", 8, 1, name); 490 } else 491 PRWORD(ovflw, " %*lld", 8, 1, (long long)ip->i_ffs_size); 492 return (0); 493 } 494 495 int 496 ext2fs_print(vp, ovflw) 497 struct vnode *vp; 498 int ovflw; 499 { 500 struct inode inode, *ip = &inode; 501 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 502 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 503 char *name; 504 mode_t type; 505 506 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 507 508 /* 509 * XXX need to to locking state. 510 */ 511 512 (void)getflags(ufs_flags, flags, ip->i_flag); 513 PRWORD(ovflw, " %*d", 7, 1, ip->i_number); 514 PRWORD(ovflw, " %*s", 6, 1, flags); 515 type = ip->i_e2fs_mode & S_IFMT; 516 if (S_ISCHR(ip->i_e2fs_mode) || S_ISBLK(ip->i_e2fs_mode)) { 517 if (usenumflag || 518 (name = devname(ip->i_e2fs_rdev, type)) == NULL) { 519 snprintf(dev, sizeof(dev), "%d,%d", 520 major(ip->i_e2fs_rdev), minor(ip->i_e2fs_rdev)); 521 name = dev; 522 } 523 PRWORD(ovflw, " %*s", 8, 1, name); 524 } else 525 PRWORD(ovflw, " %*u", 8, 1, (u_int)ip->i_e2fs_size); 526 return (0); 527 } 528 529 const struct flagbit_desc nfs_flags[] = { 530 { NFLUSHWANT, 'W' }, 531 { NFLUSHINPROG, 'P' }, 532 { NMODIFIED, 'M' }, 533 { NWRITEERR, 'E' }, 534 { NQNFSNONCACHE, 'X' }, 535 { NQNFSWRITE, 'O' }, 536 { NQNFSEVICTED, 'G' }, 537 { NACC, 'A' }, 538 { NUPD, 'U' }, 539 { NCHG, 'C' }, 540 { 0, '\0' }, 541 }; 542 543 void 544 nfs_header() 545 { 546 547 (void)printf(" FILEID NFLAG RDEV|SZ"); 548 } 549 550 int 551 nfs_print(vp, ovflw) 552 struct vnode *vp; 553 int ovflw; 554 { 555 struct nfsnode nfsnode, *np = &nfsnode; 556 char flags[sizeof(nfs_flags) / sizeof(nfs_flags[0])]; 557 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 558 struct vattr va; 559 char *name; 560 mode_t type; 561 562 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 563 (void)getflags(nfs_flags, flags, np->n_flag); 564 565 KGETRET(np->n_vattr, &va, sizeof(va), "vnode attr"); 566 PRWORD(ovflw, " %*ld", 7, 1, (long)va.va_fileid); 567 PRWORD(ovflw, " %*s", 6, 1, flags); 568 switch (va.va_type) { 569 case VCHR: 570 type = S_IFCHR; 571 goto device; 572 573 case VBLK: 574 type = S_IFBLK; 575 device: 576 if (usenumflag || (name = devname(va.va_rdev, type)) == NULL) { 577 (void)snprintf(dev, sizeof(dev), "%d,%d", 578 major(va.va_rdev), minor(va.va_rdev)); 579 name = dev; 580 } 581 PRWORD(ovflw, " %*s", 8, 1, name); 582 break; 583 default: 584 PRWORD(ovflw, " %*lld", 8, 1, (long long)np->n_size); 585 break; 586 } 587 return (0); 588 } 589 590 void 591 layer_header() 592 { 593 594 (void)printf(" %*s", PTRSTRWIDTH, "LOWER"); 595 } 596 597 int 598 layer_print(vp, ovflw) 599 struct vnode *vp; 600 int ovflw; 601 { 602 struct layer_node lnode, *lp = &lnode; 603 604 KGETRET(VTOLAYER(vp), &lnode, sizeof(lnode), "layer vnode"); 605 606 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)lp->layer_lowervp); 607 return (0); 608 } 609 610 void 611 union_header() 612 { 613 614 (void)printf(" %*s %*s", PTRSTRWIDTH, "UPPER", PTRSTRWIDTH, "LOWER"); 615 } 616 617 int 618 union_print(vp, ovflw) 619 struct vnode *vp; 620 int ovflw; 621 { 622 struct union_node unode, *up = &unode; 623 624 KGETRET(VTOUNION(vp), &unode, sizeof(unode), "vnode's unode"); 625 626 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)up->un_uppervp); 627 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)up->un_lowervp); 628 return (0); 629 } 630 631 /* 632 * Given a pointer to a mount structure in kernel space, 633 * read it in and return a usable pointer to it. 634 */ 635 struct mount * 636 getmnt(maddr) 637 struct mount *maddr; 638 { 639 static struct mtab { 640 struct mtab *next; 641 struct mount *maddr; 642 struct mount mount; 643 } *mhead = NULL; 644 struct mtab *mt; 645 646 for (mt = mhead; mt != NULL; mt = mt->next) 647 if (maddr == mt->maddr) 648 return (&mt->mount); 649 if ((mt = malloc(sizeof(struct mtab))) == NULL) 650 err(1, "malloc"); 651 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 652 mt->maddr = maddr; 653 mt->next = mhead; 654 mhead = mt; 655 return (&mt->mount); 656 } 657 658 void 659 mount_print(mp) 660 struct mount *mp; 661 { 662 int flags; 663 664 (void)printf("*** MOUNT %s %s on %s", ST.f_fstypename, 665 ST.f_mntfromname, ST.f_mntonname); 666 if ((flags = mp->mnt_flag) != 0) { 667 int i; 668 const char *sep = " ("; 669 670 for (i = 0; i <= sizeof mnt_flags / sizeof mnt_flags[0]; i++) { 671 if (flags & mnt_flags[i].m_flag) { 672 (void)printf("%s%s", sep, mnt_flags[i].m_name); 673 flags &= ~mnt_flags[i].m_flag; 674 sep = ","; 675 } 676 } 677 if (flags) 678 (void)printf("%sunknown_flags:%x", sep, flags); 679 (void)printf(")"); 680 } 681 (void)printf("\n"); 682 } 683 684 void 685 loadvnodes(avnodes, vnodebase) 686 int *avnodes; 687 char **vnodebase; 688 { 689 int mib[2]; 690 size_t copysize; 691 692 if (memf != NULL) { 693 /* 694 * do it by hand 695 */ 696 return (kinfo_vnodes(avnodes, vnodebase)); 697 } 698 mib[0] = CTL_KERN; 699 mib[1] = KERN_VNODE; 700 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 701 err(1, "sysctl: KERN_VNODE"); 702 *avnodes = copysize / (VPTRSZ + VNODESZ); 703 if (vnodebase == NULL) 704 return; 705 if (((*vnodebase) = malloc(copysize)) == NULL) 706 err(1, "malloc"); 707 if (sysctl(mib, 2, *vnodebase, ©size, NULL, 0) == -1) 708 err(1, "sysctl: KERN_VNODE"); 709 if (copysize % (VPTRSZ + VNODESZ)) 710 errx(1, "vnode size mismatch"); 711 } 712 713 /* 714 * simulate what a running kernel does in in kinfo_vnode 715 */ 716 void 717 kinfo_vnodes(avnodes, vnodebase) 718 int *avnodes; 719 char **vnodebase; 720 { 721 struct mntlist mountlist; 722 struct mount *mp, mount; 723 struct vnode *vp, vnode; 724 char *beg, *bp, *ep; 725 int numvnodes; 726 727 KGET(V_NUMV, numvnodes); 728 if (vnodebase == NULL) 729 return; 730 if ((bp = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 731 err(1, "malloc"); 732 beg = bp; 733 ep = bp + (numvnodes + 20) * (VPTRSZ + VNODESZ); 734 KGET(V_MOUNTLIST, mountlist); 735 for (mp = mountlist.cqh_first;; 736 mp = mount.mnt_list.cqe_next) { 737 KGET2(mp, &mount, sizeof(mount), "mount entry"); 738 for (vp = mount.mnt_vnodelist.lh_first; 739 vp != NULL; vp = vnode.v_mntvnodes.le_next) { 740 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 741 if (bp + VPTRSZ + VNODESZ > ep) 742 /* XXX - should realloc */ 743 errx(1, "no more room for vnodes"); 744 memmove(bp, &vp, VPTRSZ); 745 bp += VPTRSZ; 746 memmove(bp, &vnode, VNODESZ); 747 bp += VNODESZ; 748 } 749 if (mp == mountlist.cqh_last) 750 break; 751 } 752 *avnodes = (bp - beg) / (VPTRSZ + VNODESZ); 753 *vnodebase = beg; 754 } 755 756 void 757 ttymode() 758 { 759 int ntty; 760 struct ttylist_head tty_head; 761 struct tty *tp, tty; 762 763 KGET(TTY_NTTY, ntty); 764 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 765 KGET(TTY_TTYLIST, tty_head); 766 (void)printf( 767 " LINE RAW CAN OUT HWT LWT COL STATE %-*s PGID DISC\n", 768 PTRSTRWIDTH, "SESS"); 769 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 770 KGET2(tp, &tty, sizeof tty, "tty struct"); 771 ttyprt(&tty); 772 } 773 } 774 775 static const struct flagbit_desc 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 char state[sizeof(ttystates) / sizeof(ttystates[0]) + 1]; 800 char dev[2 + 3 + 1 + 5 + 1]; /* 12bit major + 20bit minor */ 801 struct linesw t_linesw; 802 char *name, buffer; 803 pid_t pgid; 804 int n, ovflw; 805 806 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) { 807 (void)snprintf(dev, sizeof(dev), "0x%3x:%x", 808 major(tp->t_dev), minor(tp->t_dev)); 809 name = dev; 810 } 811 ovflw = 0; 812 PRWORD(ovflw, "%-*s", 7, 0, name); 813 PRWORD(ovflw, " %*d", 3, 1, tp->t_rawq.c_cc); 814 PRWORD(ovflw, " %*d", 4, 1, tp->t_canq.c_cc); 815 PRWORD(ovflw, " %*d", 4, 1, tp->t_outq.c_cc); 816 PRWORD(ovflw, " %*d", 5, 1, tp->t_hiwat); 817 PRWORD(ovflw, " %*d", 4, 1, tp->t_lowat); 818 PRWORD(ovflw, " %*d", 8, 1, tp->t_column); 819 n = getflags(ttystates, state, tp->t_state); 820 if (tp->t_wopen) { 821 state[n++] = 'W'; 822 state[n] = '\0'; 823 } 824 PRWORD(ovflw, " %-*s", 7, 1, state); 825 PRWORD(ovflw, " %*lX", PTRSTRWIDTH + 1, 1, (u_long)tp->t_session); 826 pgid = 0; 827 if (tp->t_pgrp != NULL) 828 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 829 PRWORD(ovflw, " %*d", 6, 1, pgid); 830 KGET2(tp->t_linesw, &t_linesw, sizeof(t_linesw), 831 "line discipline switch table"); 832 name = t_linesw.l_name; 833 (void)putchar(' '); 834 for (;;) { 835 KGET2(name, &buffer, sizeof(buffer), "line discipline name"); 836 if (buffer == '\0') 837 break; 838 (void)putchar(buffer); 839 name++; 840 } 841 (void)putchar('\n'); 842 } 843 844 static const struct flagbit_desc filemode_flags[] = { 845 { FREAD, 'R' }, 846 { FWRITE, 'W' }, 847 { FAPPEND, 'A' }, 848 #ifdef FSHLOCK /* currently gone */ 849 { FSHLOCK, 'S' }, 850 { FEXLOCK, 'X' }, 851 #endif 852 { FASYNC, 'I' }, 853 { 0, '\0' }, 854 }; 855 856 void 857 filemode() 858 { 859 struct file *fp; 860 struct file *addr; 861 char flags[sizeof(filemode_flags) / sizeof(filemode_flags[0])]; 862 char *buf; 863 int len, maxfile, nfile, ovflw; 864 static const char * const dtypes[] = 865 { "???", "inode", "socket", "pipe" }; 866 867 KGET(FNL_MAXFILE, maxfile); 868 if (totalflag) { 869 KGET(FNL_NFILE, nfile); 870 (void)printf("%3d/%3d files\n", nfile, maxfile); 871 return; 872 } 873 if (getfiles(&buf, &len) == -1) 874 return; 875 /* 876 * Getfiles returns in malloc'd memory a pointer to the first file 877 * structure, and then an array of file structs (whose addresses are 878 * derivable from the previous entry). 879 */ 880 addr = ((struct filelist *)buf)->lh_first; 881 fp = (struct file *)(buf + sizeof(struct filelist)); 882 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 883 884 (void)printf("%d/%d open files\n", nfile, maxfile); 885 (void)printf("%*s%s%*s TYPE FLG CNT MSG %*s%s%*s OFFSET\n", 886 (PTRSTRWIDTH - 4) / 2, "", " LOC", (PTRSTRWIDTH - 4) / 2, "", 887 (PTRSTRWIDTH - 4) / 2, "", "DATA", (PTRSTRWIDTH - 4) / 2, ""); 888 for (; (char *)fp < buf + len; addr = fp->f_list.le_next, fp++) { 889 if ((unsigned)fp->f_type > DTYPE_PIPE) 890 continue; 891 ovflw = 0; 892 (void)getflags(filemode_flags, flags, fp->f_flag); 893 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)addr); 894 PRWORD(ovflw, " %-*s", 9, 1, dtypes[fp->f_type]); 895 PRWORD(ovflw, " %*s", 6, 1, flags); 896 PRWORD(ovflw, " %*d", 5, 1, fp->f_count); 897 PRWORD(ovflw, " %*d", 5, 1, fp->f_msgcount); 898 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 2, (long)fp->f_data); 899 if (fp->f_offset < 0) 900 PRWORD(ovflw, " %-*llx\n", PTRSTRWIDTH + 1, 2, 901 (long long)fp->f_offset); 902 else 903 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 904 (long long)fp->f_offset); 905 } 906 free(buf); 907 } 908 909 int 910 getfiles(abuf, alen) 911 char **abuf; 912 int *alen; 913 { 914 size_t len; 915 int mib[2]; 916 char *buf; 917 918 /* 919 * XXX 920 * Add emulation of KINFO_FILE here. 921 */ 922 if (memf != NULL) 923 errx(1, "files on dead kernel, not implemented"); 924 925 mib[0] = CTL_KERN; 926 mib[1] = KERN_FILE; 927 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 928 warn("sysctl: KERN_FILE"); 929 return (-1); 930 } 931 if ((buf = malloc(len)) == NULL) 932 err(1, "malloc"); 933 if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) { 934 warn("sysctl: KERN_FILE"); 935 return (-1); 936 } 937 *abuf = buf; 938 *alen = len; 939 return (0); 940 } 941 942 void 943 usage() 944 { 945 946 (void)fprintf(stderr, 947 "usage: %s [-T|-f|-s|-t|-v] [-kn] [-M core] [-N system]\n", 948 getprogname()); 949 exit(1); 950 } 951
Indexes created Thu Sep 25 06:09:39 GMT 2025