pstat.c revision 1.84
1 /* $NetBSD: pstat.c,v 1.84 2003/12/20 11:22:25 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT("@(#) Copyright (c) 1980, 1991, 1993, 1994\n\ 35 The Regents of the University of California. All rights reserved.\n"); 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "@(#)pstat.c 8.16 (Berkeley) 5/9/95"; 41 #else 42 __RCSID("$NetBSD: pstat.c,v 1.84 2003/12/20 11:22:25 mrg Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #include <sys/param.h> 47 #include <sys/time.h> 48 #include <sys/vnode.h> 49 #include <sys/ucred.h> 50 #define _KERNEL 51 #include <sys/file.h> 52 #include <ufs/ufs/inode.h> 53 #define NFS 54 #include <sys/mount.h> 55 #undef NFS 56 #include <sys/uio.h> 57 #include <sys/namei.h> 58 #include <miscfs/genfs/layer.h> 59 #include <miscfs/union/union.h> 60 #undef _KERNEL 61 #include <sys/stat.h> 62 #include <nfs/nfsproto.h> 63 #include <nfs/rpcv2.h> 64 #include <nfs/nfs.h> 65 #include <nfs/nfsnode.h> 66 #include <sys/ioctl.h> 67 #include <sys/tty.h> 68 #include <sys/conf.h> 69 #include <sys/device.h> 70 71 #include <sys/sysctl.h> 72 73 #include <err.h> 74 #include <kvm.h> 75 #include <limits.h> 76 #include <nlist.h> 77 #include <stdio.h> 78 #include <stdlib.h> 79 #include <string.h> 80 #include <unistd.h> 81 82 #include "swapctl.h" 83 84 struct nlist nl[] = { 85 #define V_MOUNTLIST 0 86 { "_mountlist" }, /* address of head of mount list. */ 87 #define V_NUMV 1 88 { "_numvnodes" }, 89 #define FNL_NFILE 2 90 { "_nfiles" }, 91 #define FNL_MAXFILE 3 92 { "_maxfiles" }, 93 #define TTY_NTTY 4 94 { "_tty_count" }, 95 #define TTY_TTYLIST 5 96 { "_ttylist" }, 97 #define NLMANDATORY TTY_TTYLIST /* names up to here are mandatory */ 98 { "" } 99 }; 100 101 int usenumflag; 102 int totalflag; 103 int kflag; 104 int hflag; 105 char *nlistf = NULL; 106 char *memf = NULL; 107 kvm_t *kd; 108 109 static const struct { 110 u_int m_flag; 111 u_int m_visible; 112 const char *m_name; 113 } mnt_flags[] = { 114 __MNT_FLAGS 115 }; 116 117 struct flagbit_desc { 118 u_int fd_flags; 119 char fd_mark; 120 }; 121 122 #define SVAR(var) __STRING(var) /* to force expansion */ 123 #define KGET(idx, var) \ 124 KGET1(idx, &var, sizeof(var), SVAR(var)) 125 #define KGET1(idx, p, s, msg) \ 126 KGET2(nl[idx].n_value, p, s, msg) 127 #define KGET2(addr, p, s, msg) do { \ 128 if (kvm_read(kd, (u_long)(addr), p, s) != s) \ 129 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 130 } while (/* CONSTCOND */0) 131 #define KGETRET(addr, p, s, msg) do { \ 132 if (kvm_read(kd, (u_long)(addr), p, s) != s) { \ 133 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 134 return (0); \ 135 } \ 136 } while (/* CONSTCOND */0) 137 138 #if 1 /* This is copied from vmstat/vmstat.c */ 139 /* 140 * Print single word. `ovflow' is number of characters didn't fit 141 * on the last word. `fmt' is a format string to print this word. 142 * It must contain asterisk for field width. `width' is a width 143 * occupied by this word. `fixed' is a number of constant chars in 144 * `fmt'. `val' is a value to be printed using format string `fmt'. 145 */ 146 #define PRWORD(ovflw, fmt, width, fixed, val) do { \ 147 (ovflw) += printf((fmt), \ 148 (width) - (fixed) - (ovflw) > 0 ? \ 149 (width) - (fixed) - (ovflw) : 0, \ 150 (val)) - (width); \ 151 if ((ovflw) < 0) \ 152 (ovflw) = 0; \ 153 } while (/* CONSTCOND */0) 154 #endif 155 156 void filemode __P((void)); 157 int getfiles __P((char **, int *)); 158 int getflags __P((const struct flagbit_desc *, char *, u_int)); 159 struct mount * 160 getmnt __P((struct mount *)); 161 char * kinfo_vnodes __P((int *)); 162 void layer_header __P((void)); 163 int layer_print __P((struct vnode *, int)); 164 char * loadvnodes __P((int *)); 165 int main __P((int, char **)); 166 void mount_print __P((struct mount *)); 167 void nfs_header __P((void)); 168 int nfs_print __P((struct vnode *, int)); 169 void ttymode __P((void)); 170 void ttyprt __P((struct tty *)); 171 void ufs_header __P((void)); 172 int ufs_print __P((struct vnode *, int)); 173 int ext2fs_print __P((struct vnode *, int)); 174 void union_header __P((void)); 175 int union_print __P((struct vnode *, int)); 176 void usage __P((void)); 177 void vnode_header __P((void)); 178 int vnode_print __P((struct vnode *, struct vnode *)); 179 void vnodemode __P((void)); 180 181 int 182 main(argc, argv) 183 int argc; 184 char *argv[]; 185 { 186 int ch, i, quit, ret; 187 int fileflag, swapflag, ttyflag, vnodeflag; 188 gid_t egid = getegid(); 189 char buf[_POSIX2_LINE_MAX]; 190 191 setegid(getgid()); 192 fileflag = swapflag = ttyflag = vnodeflag = 0; 193 while ((ch = getopt(argc, argv, "TM:N:fhiknstv")) != -1) 194 switch (ch) { 195 case 'f': 196 fileflag = 1; 197 break; 198 case 'M': 199 memf = optarg; 200 break; 201 case 'N': 202 nlistf = optarg; 203 break; 204 case 'n': 205 usenumflag = 1; 206 break; 207 case 's': 208 swapflag = 1; 209 break; 210 case 'T': 211 totalflag = 1; 212 break; 213 case 't': 214 ttyflag = 1; 215 break; 216 case 'k': 217 kflag = 1; 218 break; 219 case 'h': 220 hflag = 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, hflag); 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 e_vnodebase = loadvnodes(&numvnodes); 291 if (totalflag) { 292 (void)printf("%7d vnodes\n", numvnodes); 293 goto out; 294 } 295 endvnode = e_vnodebase + numvnodes * (VPTRSZ + VNODESZ); 296 (void)printf("%d active vnodes\n", numvnodes); 297 298 #define ST mp->mnt_stat 299 #define FSTYPE_IS(mp, name) \ 300 (strncmp((mp)->mnt_stat.f_fstypename, (name), MFSNAMELEN) == 0) 301 maddr = NULL; 302 vnode_fsprint = NULL; 303 for (evp = e_vnodebase; evp < endvnode; evp += VPTRSZ + VNODESZ) { 304 vp = (struct vnode *)(evp + VPTRSZ); 305 if (vp->v_mount != maddr) { 306 /* 307 * New filesystem 308 */ 309 if ((mp = getmnt(vp->v_mount)) == NULL) 310 continue; 311 maddr = vp->v_mount; 312 mount_print(mp); 313 vnode_header(); 314 if (FSTYPE_IS(mp, MOUNT_FFS) || 315 FSTYPE_IS(mp, MOUNT_MFS)) { 316 ufs_header(); 317 vnode_fsprint = ufs_print; 318 } else if (FSTYPE_IS(mp, MOUNT_NFS)) { 319 nfs_header(); 320 vnode_fsprint = nfs_print; 321 } else if (FSTYPE_IS(mp, MOUNT_EXT2FS)) { 322 ufs_header(); 323 vnode_fsprint = ext2fs_print; 324 } else if (FSTYPE_IS(mp, MOUNT_NULL) || 325 FSTYPE_IS(mp, MOUNT_OVERLAY) || 326 FSTYPE_IS(mp, MOUNT_UMAP)) { 327 layer_header(); 328 vnode_fsprint = layer_print; 329 } else if (FSTYPE_IS(mp, MOUNT_UNION)) { 330 union_header(); 331 vnode_fsprint = union_print; 332 } else 333 vnode_fsprint = NULL; 334 (void)printf("\n"); 335 } 336 ovflw = vnode_print(*(struct vnode **)evp, vp); 337 if (VTOI(vp) != NULL && vnode_fsprint != NULL) 338 (*vnode_fsprint)(vp, ovflw); 339 (void)printf("\n"); 340 } 341 342 out: 343 free(e_vnodebase); 344 } 345 346 int 347 getflags(fd, p, flags) 348 const struct flagbit_desc *fd; 349 char *p; 350 u_int flags; 351 { 352 char *q = p; 353 354 if (flags == 0) { 355 *p++ = '-'; 356 *p = '\0'; 357 return (0); 358 } 359 360 for (; fd->fd_flags != 0; fd++) 361 if ((flags & fd->fd_flags) != 0) 362 *p++ = fd->fd_mark; 363 *p = '\0'; 364 return (p - q); 365 } 366 367 const struct flagbit_desc vnode_flags[] = { 368 { VROOT, 'R' }, 369 { VTEXT, 'T' }, 370 { VSYSTEM, 'S' }, 371 { VISTTY, 'I' }, 372 { VEXECMAP, 'E' }, 373 { VXLOCK, 'L' }, 374 { VXWANT, 'W' }, 375 { VBWAIT, 'B' }, 376 { VALIASED, 'A' }, 377 { VDIROP, 'D' }, 378 { VLAYER, 'Y' }, 379 { VONWORKLST, 'O' }, 380 { 0, '\0' }, 381 }; 382 383 void 384 vnode_header() 385 { 386 387 (void)printf("%-*s TYP VFLAG USE HOLD TAG NPAGE", 388 PTRSTRWIDTH, "ADDR"); 389 } 390 391 int 392 vnode_print(avnode, vp) 393 struct vnode *avnode; 394 struct vnode *vp; 395 { 396 char *type, flags[sizeof(vnode_flags) / sizeof(vnode_flags[0])]; 397 int ovflw; 398 399 /* 400 * set type 401 */ 402 switch (vp->v_type) { 403 case VNON: 404 type = "non"; break; 405 case VREG: 406 type = "reg"; break; 407 case VDIR: 408 type = "dir"; break; 409 case VBLK: 410 type = "blk"; break; 411 case VCHR: 412 type = "chr"; break; 413 case VLNK: 414 type = "lnk"; break; 415 case VSOCK: 416 type = "soc"; break; 417 case VFIFO: 418 type = "fif"; break; 419 case VBAD: 420 type = "bad"; break; 421 default: 422 type = "unk"; break; 423 } 424 /* 425 * gather flags 426 */ 427 (void)getflags(vnode_flags, flags, vp->v_flag); 428 429 ovflw = 0; 430 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)avnode); 431 PRWORD(ovflw, " %*s", 4, 1, type); 432 PRWORD(ovflw, " %*s", 6, 1, flags); 433 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_usecount); 434 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_holdcnt); 435 PRWORD(ovflw, " %*d", 4, 1, vp->v_tag); 436 PRWORD(ovflw, " %*d", 6, 1, vp->v_uobj.uo_npages); 437 return (ovflw); 438 } 439 440 const struct flagbit_desc ufs_flags[] = { 441 { IN_ACCESS, 'A' }, 442 { IN_CHANGE, 'C' }, 443 { IN_UPDATE, 'U' }, 444 { IN_MODIFIED, 'M' }, 445 { IN_ACCESSED, 'a' }, 446 { IN_RENAME, 'R' }, 447 { IN_SHLOCK, 'S' }, 448 { IN_EXLOCK, 'E' }, 449 { IN_CLEANING, 'c' }, 450 { IN_ADIROP, 'D' }, 451 { IN_SPACECOUNTED, 's' }, 452 { 0, '\0' }, 453 }; 454 455 void 456 ufs_header() 457 { 458 459 (void)printf(" FILEID IFLAG RDEV|SZ"); 460 } 461 462 int 463 ufs_print(vp, ovflw) 464 struct vnode *vp; 465 int ovflw; 466 { 467 struct inode inode, *ip = &inode; 468 union dinode { 469 struct ufs1_dinode dp1; 470 struct ufs2_dinode dp2; 471 } dip; 472 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 473 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 474 char *name; 475 mode_t type; 476 dev_t rdev; 477 478 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 479 KGETRET(ip->i_din.ffs1_din, &dip, sizeof (struct ufs1_dinode), 480 "inode's dinode"); 481 482 if (ip->i_size == dip.dp1.di_size) 483 rdev = dip.dp1.di_rdev; 484 else { 485 KGETRET(ip->i_din.ffs1_din, &dip, sizeof (struct ufs2_dinode), 486 "inode's UFS2 dinode"); 487 rdev = dip.dp2.di_rdev; 488 } 489 490 /* 491 * XXX need to to locking state. 492 */ 493 494 (void)getflags(ufs_flags, flags, ip->i_flag); 495 PRWORD(ovflw, " %*d", 7, 1, ip->i_number); 496 PRWORD(ovflw, " %*s", 6, 1, flags); 497 type = ip->i_mode & S_IFMT; 498 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) { 499 if (usenumflag || 500 (name = devname(rdev, type)) == NULL) { 501 snprintf(dev, sizeof(dev), "%d,%d", 502 major(rdev), minor(rdev)); 503 name = dev; 504 } 505 PRWORD(ovflw, " %*s", 8, 1, name); 506 } else 507 PRWORD(ovflw, " %*lld", 8, 1, (long long)ip->i_size); 508 return 0; 509 } 510 511 int 512 ext2fs_print(vp, ovflw) 513 struct vnode *vp; 514 int ovflw; 515 { 516 struct inode inode, *ip = &inode; 517 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 518 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 519 char *name; 520 mode_t type; 521 522 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 523 524 /* 525 * XXX need to to locking state. 526 */ 527 528 (void)getflags(ufs_flags, flags, ip->i_flag); 529 PRWORD(ovflw, " %*d", 7, 1, ip->i_number); 530 PRWORD(ovflw, " %*s", 6, 1, flags); 531 type = ip->i_e2fs_mode & S_IFMT; 532 if (S_ISCHR(ip->i_e2fs_mode) || S_ISBLK(ip->i_e2fs_mode)) { 533 if (usenumflag || 534 (name = devname(ip->i_e2fs_rdev, type)) == NULL) { 535 snprintf(dev, sizeof(dev), "%d,%d", 536 major(ip->i_e2fs_rdev), minor(ip->i_e2fs_rdev)); 537 name = dev; 538 } 539 PRWORD(ovflw, " %*s", 8, 1, name); 540 } else 541 PRWORD(ovflw, " %*u", 8, 1, (u_int)ip->i_e2fs_size); 542 return (0); 543 } 544 545 const struct flagbit_desc nfs_flags[] = { 546 { NFLUSHWANT, 'W' }, 547 { NFLUSHINPROG, 'P' }, 548 { NMODIFIED, 'M' }, 549 { NWRITEERR, 'E' }, 550 { NQNFSNONCACHE, 'X' }, 551 { NQNFSWRITE, 'O' }, 552 { NQNFSEVICTED, 'G' }, 553 { NACC, 'A' }, 554 { NUPD, 'U' }, 555 { NCHG, 'C' }, 556 { 0, '\0' }, 557 }; 558 559 void 560 nfs_header() 561 { 562 563 (void)printf(" FILEID NFLAG RDEV|SZ"); 564 } 565 566 int 567 nfs_print(vp, ovflw) 568 struct vnode *vp; 569 int ovflw; 570 { 571 struct nfsnode nfsnode, *np = &nfsnode; 572 char flags[sizeof(nfs_flags) / sizeof(nfs_flags[0])]; 573 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 574 struct vattr va; 575 char *name; 576 mode_t type; 577 578 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 579 (void)getflags(nfs_flags, flags, np->n_flag); 580 581 KGETRET(np->n_vattr, &va, sizeof(va), "vnode attr"); 582 PRWORD(ovflw, " %*ld", 7, 1, (long)va.va_fileid); 583 PRWORD(ovflw, " %*s", 6, 1, flags); 584 switch (va.va_type) { 585 case VCHR: 586 type = S_IFCHR; 587 goto device; 588 589 case VBLK: 590 type = S_IFBLK; 591 device: 592 if (usenumflag || (name = devname(va.va_rdev, type)) == NULL) { 593 (void)snprintf(dev, sizeof(dev), "%d,%d", 594 major(va.va_rdev), minor(va.va_rdev)); 595 name = dev; 596 } 597 PRWORD(ovflw, " %*s", 8, 1, name); 598 break; 599 default: 600 PRWORD(ovflw, " %*lld", 8, 1, (long long)np->n_size); 601 break; 602 } 603 return (0); 604 } 605 606 void 607 layer_header() 608 { 609 610 (void)printf(" %*s", PTRSTRWIDTH, "LOWER"); 611 } 612 613 int 614 layer_print(vp, ovflw) 615 struct vnode *vp; 616 int ovflw; 617 { 618 struct layer_node lnode, *lp = &lnode; 619 620 KGETRET(VTOLAYER(vp), &lnode, sizeof(lnode), "layer vnode"); 621 622 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)lp->layer_lowervp); 623 return (0); 624 } 625 626 void 627 union_header() 628 { 629 630 (void)printf(" %*s %*s", PTRSTRWIDTH, "UPPER", PTRSTRWIDTH, "LOWER"); 631 } 632 633 int 634 union_print(vp, ovflw) 635 struct vnode *vp; 636 int ovflw; 637 { 638 struct union_node unode, *up = &unode; 639 640 KGETRET(VTOUNION(vp), &unode, sizeof(unode), "vnode's unode"); 641 642 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)up->un_uppervp); 643 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)up->un_lowervp); 644 return (0); 645 } 646 647 /* 648 * Given a pointer to a mount structure in kernel space, 649 * read it in and return a usable pointer to it. 650 */ 651 struct mount * 652 getmnt(maddr) 653 struct mount *maddr; 654 { 655 static struct mtab { 656 struct mtab *next; 657 struct mount *maddr; 658 struct mount mount; 659 } *mhead = NULL; 660 struct mtab *mt; 661 662 for (mt = mhead; mt != NULL; mt = mt->next) 663 if (maddr == mt->maddr) 664 return (&mt->mount); 665 if ((mt = malloc(sizeof(struct mtab))) == NULL) 666 err(1, "malloc"); 667 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 668 mt->maddr = maddr; 669 mt->next = mhead; 670 mhead = mt; 671 return (&mt->mount); 672 } 673 674 void 675 mount_print(mp) 676 struct mount *mp; 677 { 678 int flags; 679 680 (void)printf("*** MOUNT %s %s on %s", ST.f_fstypename, 681 ST.f_mntfromname, ST.f_mntonname); 682 if ((flags = mp->mnt_flag) != 0) { 683 int i; 684 const char *sep = " ("; 685 686 for (i = 0; i <= sizeof mnt_flags / sizeof mnt_flags[0]; i++) { 687 if (flags & mnt_flags[i].m_flag) { 688 (void)printf("%s%s", sep, mnt_flags[i].m_name); 689 flags &= ~mnt_flags[i].m_flag; 690 sep = ","; 691 } 692 } 693 if (flags) 694 (void)printf("%sunknown_flags:%x", sep, flags); 695 (void)printf(")"); 696 } 697 (void)printf("\n"); 698 } 699 700 char * 701 loadvnodes(avnodes) 702 int *avnodes; 703 { 704 int mib[2]; 705 size_t copysize; 706 char *vnodebase; 707 708 if (memf != NULL) { 709 /* 710 * do it by hand 711 */ 712 return (kinfo_vnodes(avnodes)); 713 } 714 mib[0] = CTL_KERN; 715 mib[1] = KERN_VNODE; 716 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 717 err(1, "sysctl: KERN_VNODE"); 718 if ((vnodebase = malloc(copysize)) == NULL) 719 err(1, "malloc"); 720 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 721 err(1, "sysctl: KERN_VNODE"); 722 if (copysize % (VPTRSZ + VNODESZ)) 723 errx(1, "vnode size mismatch"); 724 *avnodes = copysize / (VPTRSZ + VNODESZ); 725 726 return (vnodebase); 727 } 728 729 /* 730 * simulate what a running kernel does in in kinfo_vnode 731 */ 732 char * 733 kinfo_vnodes(avnodes) 734 int *avnodes; 735 { 736 struct mntlist mountlist; 737 struct mount *mp, mount; 738 struct vnode *vp, vnode; 739 char *beg, *bp, *ep; 740 int numvnodes; 741 742 KGET(V_NUMV, numvnodes); 743 if ((bp = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 744 err(1, "malloc"); 745 beg = bp; 746 ep = bp + (numvnodes + 20) * (VPTRSZ + VNODESZ); 747 KGET(V_MOUNTLIST, mountlist); 748 for (mp = mountlist.cqh_first;; 749 mp = mount.mnt_list.cqe_next) { 750 KGET2(mp, &mount, sizeof(mount), "mount entry"); 751 for (vp = mount.mnt_vnodelist.lh_first; 752 vp != NULL; vp = vnode.v_mntvnodes.le_next) { 753 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 754 if (bp + VPTRSZ + VNODESZ > ep) 755 /* XXX - should realloc */ 756 errx(1, "no more room for vnodes"); 757 memmove(bp, &vp, VPTRSZ); 758 bp += VPTRSZ; 759 memmove(bp, &vnode, VNODESZ); 760 bp += VNODESZ; 761 } 762 if (mp == mountlist.cqh_last) 763 break; 764 } 765 *avnodes = (bp - beg) / (VPTRSZ + VNODESZ); 766 return (beg); 767 } 768 769 void 770 ttymode() 771 { 772 int ntty; 773 struct ttylist_head tty_head; 774 struct tty *tp, tty; 775 776 KGET(TTY_NTTY, ntty); 777 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 778 KGET(TTY_TTYLIST, tty_head); 779 (void)printf( 780 " LINE RAW CAN OUT HWT LWT COL STATE %-*s PGID DISC\n", 781 PTRSTRWIDTH, "SESS"); 782 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 783 KGET2(tp, &tty, sizeof tty, "tty struct"); 784 ttyprt(&tty); 785 } 786 } 787 788 static const struct flagbit_desc ttystates[] = { 789 { TS_ISOPEN, 'O'}, 790 { TS_DIALOUT, '>'}, 791 { TS_CARR_ON, 'C'}, 792 { TS_TIMEOUT, 'T'}, 793 { TS_FLUSH, 'F'}, 794 { TS_BUSY, 'B'}, 795 { TS_ASLEEP, 'A'}, 796 { TS_XCLUDE, 'X'}, 797 { TS_TTSTOP, 'S'}, 798 { TS_TBLOCK, 'K'}, 799 { TS_ASYNC, 'Y'}, 800 { TS_BKSL, 'D'}, 801 { TS_ERASE, 'E'}, 802 { TS_LNCH, 'L'}, 803 { TS_TYPEN, 'P'}, 804 { TS_CNTTB, 'N'}, 805 { 0, '\0'}, 806 }; 807 808 void 809 ttyprt(tp) 810 struct tty *tp; 811 { 812 char state[sizeof(ttystates) / sizeof(ttystates[0]) + 1]; 813 char dev[2 + 3 + 1 + 5 + 1]; /* 12bit major + 20bit minor */ 814 struct linesw t_linesw; 815 char *name, buffer; 816 pid_t pgid; 817 int n, ovflw; 818 819 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) { 820 (void)snprintf(dev, sizeof(dev), "0x%3x:%x", 821 major(tp->t_dev), minor(tp->t_dev)); 822 name = dev; 823 } 824 ovflw = 0; 825 PRWORD(ovflw, "%-*s", 7, 0, name); 826 PRWORD(ovflw, " %*d", 3, 1, tp->t_rawq.c_cc); 827 PRWORD(ovflw, " %*d", 4, 1, tp->t_canq.c_cc); 828 PRWORD(ovflw, " %*d", 4, 1, tp->t_outq.c_cc); 829 PRWORD(ovflw, " %*d", 5, 1, tp->t_hiwat); 830 PRWORD(ovflw, " %*d", 4, 1, tp->t_lowat); 831 PRWORD(ovflw, " %*d", 8, 1, tp->t_column); 832 n = getflags(ttystates, state, tp->t_state); 833 if (tp->t_wopen) { 834 state[n++] = 'W'; 835 state[n] = '\0'; 836 } 837 PRWORD(ovflw, " %-*s", 7, 1, state); 838 PRWORD(ovflw, " %*lX", PTRSTRWIDTH + 1, 1, (u_long)tp->t_session); 839 pgid = 0; 840 if (tp->t_pgrp != NULL) 841 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 842 PRWORD(ovflw, " %*d", 6, 1, pgid); 843 KGET2(tp->t_linesw, &t_linesw, sizeof(t_linesw), 844 "line discipline switch table"); 845 name = t_linesw.l_name; 846 (void)putchar(' '); 847 for (;;) { 848 KGET2(name, &buffer, sizeof(buffer), "line discipline name"); 849 if (buffer == '\0') 850 break; 851 (void)putchar(buffer); 852 name++; 853 } 854 (void)putchar('\n'); 855 } 856 857 static const struct flagbit_desc filemode_flags[] = { 858 { FREAD, 'R' }, 859 { FWRITE, 'W' }, 860 { FAPPEND, 'A' }, 861 #ifdef FSHLOCK /* currently gone */ 862 { FSHLOCK, 'S' }, 863 { FEXLOCK, 'X' }, 864 #endif 865 { FASYNC, 'I' }, 866 { 0, '\0' }, 867 }; 868 869 void 870 filemode() 871 { 872 struct file *fp; 873 struct file *addr; 874 char flags[sizeof(filemode_flags) / sizeof(filemode_flags[0])]; 875 char *buf; 876 int len, maxfile, nfile, ovflw; 877 static const char * const dtypes[] = 878 { "???", "inode", "socket", "pipe" }; 879 880 KGET(FNL_MAXFILE, maxfile); 881 if (totalflag) { 882 KGET(FNL_NFILE, nfile); 883 (void)printf("%3d/%3d files\n", nfile, maxfile); 884 return; 885 } 886 if (getfiles(&buf, &len) == -1) 887 return; 888 /* 889 * Getfiles returns in malloc'd memory a pointer to the first file 890 * structure, and then an array of file structs (whose addresses are 891 * derivable from the previous entry). 892 */ 893 addr = ((struct filelist *)buf)->lh_first; 894 fp = (struct file *)(buf + sizeof(struct filelist)); 895 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 896 897 (void)printf("%d/%d open files\n", nfile, maxfile); 898 (void)printf("%*s%s%*s TYPE FLG CNT MSG %*s%s%*s OFFSET\n", 899 (PTRSTRWIDTH - 4) / 2, "", " LOC", (PTRSTRWIDTH - 4) / 2, "", 900 (PTRSTRWIDTH - 4) / 2, "", "DATA", (PTRSTRWIDTH - 4) / 2, ""); 901 for (; (char *)fp < buf + len; addr = fp->f_list.le_next, fp++) { 902 if ((unsigned)fp->f_type > DTYPE_PIPE) 903 continue; 904 ovflw = 0; 905 (void)getflags(filemode_flags, flags, fp->f_flag); 906 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)addr); 907 PRWORD(ovflw, " %-*s", 9, 1, dtypes[fp->f_type]); 908 PRWORD(ovflw, " %*s", 6, 1, flags); 909 PRWORD(ovflw, " %*d", 5, 1, fp->f_count); 910 PRWORD(ovflw, " %*d", 5, 1, fp->f_msgcount); 911 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 2, (long)fp->f_data); 912 if (fp->f_offset < 0) 913 PRWORD(ovflw, " %-*llx\n", PTRSTRWIDTH + 1, 2, 914 (long long)fp->f_offset); 915 else 916 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 917 (long long)fp->f_offset); 918 } 919 free(buf); 920 } 921 922 int 923 getfiles(abuf, alen) 924 char **abuf; 925 int *alen; 926 { 927 size_t len; 928 int mib[2]; 929 char *buf; 930 931 /* 932 * XXX 933 * Add emulation of KINFO_FILE here. 934 */ 935 if (memf != NULL) 936 errx(1, "files on dead kernel, not implemented"); 937 938 mib[0] = CTL_KERN; 939 mib[1] = KERN_FILE; 940 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 941 warn("sysctl: KERN_FILE"); 942 return (-1); 943 } 944 if ((buf = malloc(len)) == NULL) 945 err(1, "malloc"); 946 if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) { 947 warn("sysctl: KERN_FILE"); 948 return (-1); 949 } 950 *abuf = buf; 951 *alen = len; 952 return (0); 953 } 954 955 void 956 usage() 957 { 958 959 (void)fprintf(stderr, 960 "usage: %s [-T|-f|-s|-t|-v] [-knh] [-M core] [-N system]\n", 961 getprogname()); 962 exit(1); 963 } 964
Indexes created Wed Sep 24 05:09:52 GMT 2025