pstat.c revision 1.89
1 /* $NetBSD: pstat.c,v 1.89 2005/05/30 07:24:31 christos 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 1.89 2005/05/30 07:24:31 christos 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 char * const dtypes[] = { DTYPE_NAMES }; 110 111 112 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 *, char **)); 161 int getflags __P((const struct flagbit_desc *, char *, u_int)); 162 struct mount * 163 getmnt __P((struct mount *)); 164 char * kinfo_vnodes __P((int *)); 165 void layer_header __P((void)); 166 int layer_print __P((struct vnode *, int)); 167 char * loadvnodes __P((int *)); 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:fghikmnstv")) != -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 'g': 223 kflag = 3; /* 1k ^ 3 */ 224 break; 225 case 'h': 226 hflag = 1; 227 break; 228 case 'm': 229 kflag = 2; /* 1k ^ 2 */ 230 break; 231 case 'v': 232 case 'i': /* Backward compatibility. */ 233 vnodeflag = 1; 234 break; 235 default: 236 usage(); 237 } 238 argc -= optind; 239 argv += optind; 240 241 /* 242 * Discard setgid privileges. If not the running kernel, we toss 243 * them away totally so that bad guys can't print interesting stuff 244 * from kernel memory, otherwise switch back to kmem for the 245 * duration of the kvm_openfiles() call. 246 */ 247 if (nlistf != NULL || memf != NULL) 248 (void)setgid(getgid()); 249 else 250 (void)setegid(egid); 251 252 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0) 253 errx(1, "kvm_openfiles: %s", buf); 254 255 /* get rid of it now anyway */ 256 if (nlistf == NULL && memf == NULL) 257 (void)setgid(getgid()); 258 if ((ret = kvm_nlist(kd, nl)) != 0) { 259 if (ret == -1) 260 errx(1, "kvm_nlist: %s", kvm_geterr(kd)); 261 for (i = quit = 0; i <= NLMANDATORY; i++) 262 if (!nl[i].n_value) { 263 quit = 1; 264 warnx("undefined symbol: %s", nl[i].n_name); 265 } 266 if (quit) 267 exit(1); 268 } 269 if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag)) 270 usage(); 271 if (fileflag || totalflag) 272 filemode(); 273 if (vnodeflag || totalflag) 274 vnodemode(); 275 if (ttyflag) 276 ttymode(); 277 if (swapflag || totalflag) 278 list_swap(0, kflag, 0, totalflag, 1, hflag); 279 exit(0); 280 } 281 282 #define VPTRSZ sizeof(struct vnode *) 283 #define VNODESZ sizeof(struct vnode) 284 #define PTRSTRWIDTH ((int)sizeof(void *) * 2) /* Width of resulting string 285 when pointer is printed 286 in hexadecimal. */ 287 288 void 289 vnodemode() 290 { 291 char *e_vnodebase, *endvnode, *evp; 292 struct vnode *vp; 293 struct mount *maddr, *mp; 294 int numvnodes, ovflw; 295 int (*vnode_fsprint) 296 __P((struct vnode *, int)); /* per-fs data printer */ 297 298 mp = NULL; 299 e_vnodebase = loadvnodes(&numvnodes); 300 if (totalflag) { 301 (void)printf("%7d vnodes\n", numvnodes); 302 goto out; 303 } 304 endvnode = e_vnodebase + numvnodes * (VPTRSZ + VNODESZ); 305 (void)printf("%d active vnodes\n", numvnodes); 306 307 #define ST mp->mnt_stat 308 #define FSTYPE_IS(mp, name) \ 309 (strncmp((mp)->mnt_stat.f_fstypename, (name), MFSNAMELEN) == 0) 310 maddr = NULL; 311 vnode_fsprint = NULL; 312 for (evp = e_vnodebase; evp < endvnode; evp += VPTRSZ + VNODESZ) { 313 vp = (struct vnode *)(evp + VPTRSZ); 314 if (vp->v_mount != maddr) { 315 /* 316 * New filesystem 317 */ 318 if ((mp = getmnt(vp->v_mount)) == NULL) 319 continue; 320 maddr = vp->v_mount; 321 mount_print(mp); 322 vnode_header(); 323 if (FSTYPE_IS(mp, MOUNT_FFS) || 324 FSTYPE_IS(mp, MOUNT_MFS)) { 325 ufs_header(); 326 vnode_fsprint = ufs_print; 327 } else if (FSTYPE_IS(mp, MOUNT_NFS)) { 328 nfs_header(); 329 vnode_fsprint = nfs_print; 330 } else if (FSTYPE_IS(mp, MOUNT_EXT2FS)) { 331 ufs_header(); 332 vnode_fsprint = ext2fs_print; 333 } else if (FSTYPE_IS(mp, MOUNT_NULL) || 334 FSTYPE_IS(mp, MOUNT_OVERLAY) || 335 FSTYPE_IS(mp, MOUNT_UMAP)) { 336 layer_header(); 337 vnode_fsprint = layer_print; 338 } else if (FSTYPE_IS(mp, MOUNT_UNION)) { 339 union_header(); 340 vnode_fsprint = union_print; 341 } else 342 vnode_fsprint = NULL; 343 (void)printf("\n"); 344 } 345 ovflw = vnode_print(*(struct vnode **)evp, vp); 346 if (VTOI(vp) != NULL && vnode_fsprint != NULL) 347 (*vnode_fsprint)(vp, ovflw); 348 (void)printf("\n"); 349 } 350 351 out: 352 free(e_vnodebase); 353 } 354 355 int 356 getflags(fd, p, flags) 357 const struct flagbit_desc *fd; 358 char *p; 359 u_int flags; 360 { 361 char *q = p; 362 363 if (flags == 0) { 364 *p++ = '-'; 365 *p = '\0'; 366 return (0); 367 } 368 369 for (; fd->fd_flags != 0; fd++) 370 if ((flags & fd->fd_flags) != 0) 371 *p++ = fd->fd_mark; 372 *p = '\0'; 373 return (p - q); 374 } 375 376 const struct flagbit_desc vnode_flags[] = { 377 { VROOT, 'R' }, 378 { VTEXT, 'T' }, 379 { VSYSTEM, 'S' }, 380 { VISTTY, 'I' }, 381 { VEXECMAP, 'E' }, 382 { VXLOCK, 'L' }, 383 { VXWANT, 'W' }, 384 { VBWAIT, 'B' }, 385 { VALIASED, 'A' }, 386 { VDIROP, 'D' }, 387 { VLAYER, 'Y' }, 388 { VONWORKLST, 'O' }, 389 { 0, '\0' }, 390 }; 391 392 void 393 vnode_header() 394 { 395 396 (void)printf("%-*s TYP VFLAG USE HOLD TAG NPAGE", 397 PTRSTRWIDTH, "ADDR"); 398 } 399 400 int 401 vnode_print(avnode, vp) 402 struct vnode *avnode; 403 struct vnode *vp; 404 { 405 char *type, flags[sizeof(vnode_flags) / sizeof(vnode_flags[0])]; 406 int ovflw; 407 408 /* 409 * set type 410 */ 411 switch (vp->v_type) { 412 case VNON: 413 type = "non"; break; 414 case VREG: 415 type = "reg"; break; 416 case VDIR: 417 type = "dir"; break; 418 case VBLK: 419 type = "blk"; break; 420 case VCHR: 421 type = "chr"; break; 422 case VLNK: 423 type = "lnk"; break; 424 case VSOCK: 425 type = "soc"; break; 426 case VFIFO: 427 type = "fif"; break; 428 case VBAD: 429 type = "bad"; break; 430 default: 431 type = "unk"; break; 432 } 433 /* 434 * gather flags 435 */ 436 (void)getflags(vnode_flags, flags, vp->v_flag); 437 438 ovflw = 0; 439 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)avnode); 440 PRWORD(ovflw, " %*s", 4, 1, type); 441 PRWORD(ovflw, " %*s", 6, 1, flags); 442 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_usecount); 443 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_holdcnt); 444 PRWORD(ovflw, " %*d", 4, 1, vp->v_tag); 445 PRWORD(ovflw, " %*d", 6, 1, vp->v_uobj.uo_npages); 446 return (ovflw); 447 } 448 449 const struct flagbit_desc ufs_flags[] = { 450 { IN_ACCESS, 'A' }, 451 { IN_CHANGE, 'C' }, 452 { IN_UPDATE, 'U' }, 453 { IN_MODIFIED, 'M' }, 454 { IN_ACCESSED, 'a' }, 455 { IN_RENAME, 'R' }, 456 { IN_SHLOCK, 'S' }, 457 { IN_EXLOCK, 'E' }, 458 { IN_CLEANING, 'c' }, 459 { IN_ADIROP, 'D' }, 460 { IN_SPACECOUNTED, 's' }, 461 { 0, '\0' }, 462 }; 463 464 void 465 ufs_header() 466 { 467 468 (void)printf(" FILEID IFLAG RDEV|SZ"); 469 } 470 471 int 472 ufs_print(vp, ovflw) 473 struct vnode *vp; 474 int ovflw; 475 { 476 struct inode inode, *ip = &inode; 477 union dinode { 478 struct ufs1_dinode dp1; 479 struct ufs2_dinode dp2; 480 } dip; 481 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 482 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 483 char *name; 484 mode_t type; 485 dev_t rdev; 486 487 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 488 KGETRET(ip->i_din.ffs1_din, &dip, sizeof (struct ufs1_dinode), 489 "inode's dinode"); 490 491 if (ip->i_size == dip.dp1.di_size) 492 rdev = dip.dp1.di_rdev; 493 else { 494 KGETRET(ip->i_din.ffs1_din, &dip, sizeof (struct ufs2_dinode), 495 "inode's UFS2 dinode"); 496 rdev = dip.dp2.di_rdev; 497 } 498 499 /* 500 * XXX need to to locking state. 501 */ 502 503 (void)getflags(ufs_flags, flags, ip->i_flag); 504 PRWORD(ovflw, " %*d", 7, 1, ip->i_number); 505 PRWORD(ovflw, " %*s", 6, 1, flags); 506 type = ip->i_mode & S_IFMT; 507 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) { 508 if (usenumflag || 509 (name = devname(rdev, type)) == NULL) { 510 snprintf(dev, sizeof(dev), "%d,%d", 511 major(rdev), minor(rdev)); 512 name = dev; 513 } 514 PRWORD(ovflw, " %*s", 8, 1, name); 515 } else 516 PRWORD(ovflw, " %*lld", 8, 1, (long long)ip->i_size); 517 return 0; 518 } 519 520 int 521 ext2fs_print(vp, ovflw) 522 struct vnode *vp; 523 int ovflw; 524 { 525 struct inode inode, *ip = &inode; 526 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 527 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 528 char *name; 529 mode_t type; 530 531 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 532 533 /* 534 * XXX need to to locking state. 535 */ 536 537 (void)getflags(ufs_flags, flags, ip->i_flag); 538 PRWORD(ovflw, " %*d", 7, 1, ip->i_number); 539 PRWORD(ovflw, " %*s", 6, 1, flags); 540 type = ip->i_e2fs_mode & S_IFMT; 541 if (S_ISCHR(ip->i_e2fs_mode) || S_ISBLK(ip->i_e2fs_mode)) { 542 if (usenumflag || 543 (name = devname(ip->i_e2fs_rdev, type)) == NULL) { 544 snprintf(dev, sizeof(dev), "%d,%d", 545 major(ip->i_e2fs_rdev), minor(ip->i_e2fs_rdev)); 546 name = dev; 547 } 548 PRWORD(ovflw, " %*s", 8, 1, name); 549 } else 550 PRWORD(ovflw, " %*u", 8, 1, (u_int)ip->i_e2fs_size); 551 return (0); 552 } 553 554 const struct flagbit_desc nfs_flags[] = { 555 { NFLUSHWANT, 'W' }, 556 { NFLUSHINPROG, 'P' }, 557 { NMODIFIED, 'M' }, 558 { NWRITEERR, 'E' }, 559 { NQNFSNONCACHE, 'X' }, 560 { NQNFSWRITE, 'O' }, 561 { NQNFSEVICTED, 'G' }, 562 { NACC, 'A' }, 563 { NUPD, 'U' }, 564 { NCHG, 'C' }, 565 { 0, '\0' }, 566 }; 567 568 void 569 nfs_header() 570 { 571 572 (void)printf(" FILEID NFLAG RDEV|SZ"); 573 } 574 575 int 576 nfs_print(vp, ovflw) 577 struct vnode *vp; 578 int ovflw; 579 { 580 struct nfsnode nfsnode, *np = &nfsnode; 581 char flags[sizeof(nfs_flags) / sizeof(nfs_flags[0])]; 582 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 583 struct vattr va; 584 char *name; 585 mode_t type; 586 587 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 588 (void)getflags(nfs_flags, flags, np->n_flag); 589 590 KGETRET(np->n_vattr, &va, sizeof(va), "vnode attr"); 591 PRWORD(ovflw, " %*ld", 7, 1, (long)va.va_fileid); 592 PRWORD(ovflw, " %*s", 6, 1, flags); 593 switch (va.va_type) { 594 case VCHR: 595 type = S_IFCHR; 596 goto device; 597 598 case VBLK: 599 type = S_IFBLK; 600 device: 601 if (usenumflag || (name = devname(va.va_rdev, type)) == NULL) { 602 (void)snprintf(dev, sizeof(dev), "%d,%d", 603 major(va.va_rdev), minor(va.va_rdev)); 604 name = dev; 605 } 606 PRWORD(ovflw, " %*s", 8, 1, name); 607 break; 608 default: 609 PRWORD(ovflw, " %*lld", 8, 1, (long long)np->n_size); 610 break; 611 } 612 return (0); 613 } 614 615 void 616 layer_header() 617 { 618 619 (void)printf(" %*s", PTRSTRWIDTH, "LOWER"); 620 } 621 622 int 623 layer_print(vp, ovflw) 624 struct vnode *vp; 625 int ovflw; 626 { 627 struct layer_node lnode, *lp = &lnode; 628 629 KGETRET(VTOLAYER(vp), &lnode, sizeof(lnode), "layer vnode"); 630 631 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)lp->layer_lowervp); 632 return (0); 633 } 634 635 void 636 union_header() 637 { 638 639 (void)printf(" %*s %*s", PTRSTRWIDTH, "UPPER", PTRSTRWIDTH, "LOWER"); 640 } 641 642 int 643 union_print(vp, ovflw) 644 struct vnode *vp; 645 int ovflw; 646 { 647 struct union_node unode, *up = &unode; 648 649 KGETRET(VTOUNION(vp), &unode, sizeof(unode), "vnode's unode"); 650 651 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)up->un_uppervp); 652 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)up->un_lowervp); 653 return (0); 654 } 655 656 /* 657 * Given a pointer to a mount structure in kernel space, 658 * read it in and return a usable pointer to it. 659 */ 660 struct mount * 661 getmnt(maddr) 662 struct mount *maddr; 663 { 664 static struct mtab { 665 struct mtab *next; 666 struct mount *maddr; 667 struct mount mount; 668 } *mhead = NULL; 669 struct mtab *mt; 670 671 for (mt = mhead; mt != NULL; mt = mt->next) 672 if (maddr == mt->maddr) 673 return (&mt->mount); 674 if ((mt = malloc(sizeof(struct mtab))) == NULL) 675 err(1, "malloc"); 676 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 677 mt->maddr = maddr; 678 mt->next = mhead; 679 mhead = mt; 680 return (&mt->mount); 681 } 682 683 void 684 mount_print(mp) 685 struct mount *mp; 686 { 687 int flags; 688 689 (void)printf("*** MOUNT %s %s on %s", ST.f_fstypename, 690 ST.f_mntfromname, ST.f_mntonname); 691 if ((flags = mp->mnt_flag) != 0) { 692 int i; 693 const char *sep = " ("; 694 695 for (i = 0; i <= sizeof mnt_flags / sizeof mnt_flags[0]; i++) { 696 if (flags & mnt_flags[i].m_flag) { 697 (void)printf("%s%s", sep, mnt_flags[i].m_name); 698 flags &= ~mnt_flags[i].m_flag; 699 sep = ","; 700 } 701 } 702 if (flags) 703 (void)printf("%sunknown_flags:%x", sep, flags); 704 (void)printf(")"); 705 } 706 (void)printf("\n"); 707 } 708 709 char * 710 loadvnodes(avnodes) 711 int *avnodes; 712 { 713 int mib[2]; 714 size_t copysize; 715 char *vnodebase; 716 717 if (memf != NULL) { 718 /* 719 * do it by hand 720 */ 721 return (kinfo_vnodes(avnodes)); 722 } 723 mib[0] = CTL_KERN; 724 mib[1] = KERN_VNODE; 725 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 726 err(1, "sysctl: KERN_VNODE"); 727 if ((vnodebase = malloc(copysize)) == NULL) 728 err(1, "malloc"); 729 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 730 err(1, "sysctl: KERN_VNODE"); 731 if (copysize % (VPTRSZ + VNODESZ)) 732 errx(1, "vnode size mismatch"); 733 *avnodes = copysize / (VPTRSZ + VNODESZ); 734 735 return (vnodebase); 736 } 737 738 /* 739 * simulate what a running kernel does in in kinfo_vnode 740 */ 741 char * 742 kinfo_vnodes(avnodes) 743 int *avnodes; 744 { 745 struct mntlist mountlist; 746 struct mount *mp, mount; 747 struct vnode *vp, vnode; 748 char *beg, *bp, *ep; 749 int numvnodes; 750 751 KGET(V_NUMV, numvnodes); 752 if ((bp = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 753 err(1, "malloc"); 754 beg = bp; 755 ep = bp + (numvnodes + 20) * (VPTRSZ + VNODESZ); 756 KGET(V_MOUNTLIST, mountlist); 757 for (mp = mountlist.cqh_first;; 758 mp = mount.mnt_list.cqe_next) { 759 KGET2(mp, &mount, sizeof(mount), "mount entry"); 760 for (vp = mount.mnt_vnodelist.lh_first; 761 vp != NULL; vp = vnode.v_mntvnodes.le_next) { 762 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 763 if (bp + VPTRSZ + VNODESZ > ep) 764 /* XXX - should realloc */ 765 errx(1, "no more room for vnodes"); 766 memmove(bp, &vp, VPTRSZ); 767 bp += VPTRSZ; 768 memmove(bp, &vnode, VNODESZ); 769 bp += VNODESZ; 770 } 771 if (mp == mountlist.cqh_last) 772 break; 773 } 774 *avnodes = (bp - beg) / (VPTRSZ + VNODESZ); 775 return (beg); 776 } 777 778 void 779 ttymode() 780 { 781 int ntty; 782 struct ttylist_head tty_head; 783 struct tty *tp, tty; 784 785 KGET(TTY_NTTY, ntty); 786 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 787 KGET(TTY_TTYLIST, tty_head); 788 (void)printf( 789 " LINE RAW CAN OUT HWT LWT COL STATE %-*s PGID DISC\n", 790 PTRSTRWIDTH, "SESS"); 791 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 792 KGET2(tp, &tty, sizeof tty, "tty struct"); 793 ttyprt(&tty); 794 } 795 } 796 797 static const struct flagbit_desc ttystates[] = { 798 { TS_ISOPEN, 'O'}, 799 { TS_DIALOUT, '>'}, 800 { TS_CARR_ON, 'C'}, 801 { TS_TIMEOUT, 'T'}, 802 { TS_FLUSH, 'F'}, 803 { TS_BUSY, 'B'}, 804 { TS_ASLEEP, 'A'}, 805 { TS_XCLUDE, 'X'}, 806 { TS_TTSTOP, 'S'}, 807 { TS_TBLOCK, 'K'}, 808 { TS_ASYNC, 'Y'}, 809 { TS_BKSL, 'D'}, 810 { TS_ERASE, 'E'}, 811 { TS_LNCH, 'L'}, 812 { TS_TYPEN, 'P'}, 813 { TS_CNTTB, 'N'}, 814 { 0, '\0'}, 815 }; 816 817 void 818 ttyprt(tp) 819 struct tty *tp; 820 { 821 char state[sizeof(ttystates) / sizeof(ttystates[0]) + 1]; 822 char dev[2 + 3 + 1 + 5 + 1]; /* 12bit major + 20bit minor */ 823 struct linesw t_linesw; 824 const char *name; 825 char buffer; 826 pid_t pgid; 827 int n, ovflw; 828 829 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) { 830 (void)snprintf(dev, sizeof(dev), "0x%3x:%x", 831 major(tp->t_dev), minor(tp->t_dev)); 832 name = dev; 833 } 834 ovflw = 0; 835 PRWORD(ovflw, "%-*s", 7, 0, name); 836 PRWORD(ovflw, " %*d", 3, 1, tp->t_rawq.c_cc); 837 PRWORD(ovflw, " %*d", 4, 1, tp->t_canq.c_cc); 838 PRWORD(ovflw, " %*d", 4, 1, tp->t_outq.c_cc); 839 PRWORD(ovflw, " %*d", 5, 1, tp->t_hiwat); 840 PRWORD(ovflw, " %*d", 4, 1, tp->t_lowat); 841 PRWORD(ovflw, " %*d", 8, 1, tp->t_column); 842 n = getflags(ttystates, state, tp->t_state); 843 if (tp->t_wopen) { 844 state[n++] = 'W'; 845 state[n] = '\0'; 846 } 847 PRWORD(ovflw, " %-*s", 7, 1, state); 848 PRWORD(ovflw, " %*lX", PTRSTRWIDTH + 1, 1, (u_long)tp->t_session); 849 pgid = 0; 850 if (tp->t_pgrp != NULL) 851 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 852 PRWORD(ovflw, " %*d", 6, 1, pgid); 853 KGET2(tp->t_linesw, &t_linesw, sizeof(t_linesw), 854 "line discipline switch table"); 855 name = t_linesw.l_name; 856 (void)putchar(' '); 857 for (;;) { 858 KGET2(name, &buffer, sizeof(buffer), "line discipline name"); 859 if (buffer == '\0') 860 break; 861 (void)putchar(buffer); 862 name++; 863 } 864 (void)putchar('\n'); 865 } 866 867 static const struct flagbit_desc filemode_flags[] = { 868 { FREAD, 'R' }, 869 { FWRITE, 'W' }, 870 { FAPPEND, 'A' }, 871 #ifdef FSHLOCK /* currently gone */ 872 { FSHLOCK, 'S' }, 873 { FEXLOCK, 'X' }, 874 #endif 875 { FASYNC, 'I' }, 876 { 0, '\0' }, 877 }; 878 879 void 880 filemode() 881 { 882 struct file *fp; 883 struct file *addr; 884 char flags[sizeof(filemode_flags) / sizeof(filemode_flags[0])]; 885 char *buf, *offset; 886 int len, maxfile, nfile, ovflw; 887 888 KGET(FNL_MAXFILE, maxfile); 889 if (totalflag) { 890 KGET(FNL_NFILE, nfile); 891 (void)printf("%3d/%3d files\n", nfile, maxfile); 892 return; 893 } 894 if (getfiles(&buf, &len, &offset) == -1) 895 return; 896 /* 897 * Getfiles returns in malloc'd memory a pointer to the first file 898 * structure, and then an array of file structs (whose addresses are 899 * derivable from the previous entry). 900 */ 901 addr = ((struct filelist *)offset)->lh_first; 902 fp = (struct file *)(offset + sizeof(struct filelist)); 903 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 904 905 (void)printf("%d/%d open files\n", nfile, maxfile); 906 (void)printf("%*s%s%*s TYPE FLG CNT MSG %*s%s%*s USE IFLG OFFSET\n", 907 (PTRSTRWIDTH - 4) / 2, "", " LOC", (PTRSTRWIDTH - 4) / 2, "", 908 (PTRSTRWIDTH - 4) / 2, "", "DATA", (PTRSTRWIDTH - 4) / 2, ""); 909 for (; (char *)fp < offset + len; addr = fp->f_list.le_next, fp++) { 910 if ((unsigned)fp->f_type > sizeof(dtypes) / sizeof(dtypes[0])) 911 continue; 912 ovflw = 0; 913 (void)getflags(filemode_flags, flags, fp->f_flag); 914 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)addr); 915 PRWORD(ovflw, " %-*s", 9, 1, dtypes[fp->f_type]); 916 PRWORD(ovflw, " %*s", 6, 1, flags); 917 PRWORD(ovflw, " %*d", 5, 1, fp->f_count); 918 PRWORD(ovflw, " %*d", 5, 1, fp->f_msgcount); 919 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 2, (long)fp->f_data); 920 PRWORD(ovflw, " %*d", 5, 1, fp->f_usecount); 921 PRWORD(ovflw, " %*x", 5, 1, fp->f_iflags); 922 if (fp->f_offset < 0) 923 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 924 (long long)fp->f_offset); 925 else 926 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 927 (long long)fp->f_offset); 928 } 929 free(buf); 930 } 931 932 int 933 getfiles(abuf, alen, aoffset) 934 char **abuf; 935 int *alen; 936 char **aoffset; 937 { 938 size_t len; 939 int mib[2]; 940 char *buf; 941 size_t offset; 942 943 /* 944 * XXX 945 * Add emulation of KINFO_FILE here. 946 */ 947 if (memf != NULL) 948 errx(1, "files on dead kernel, not implemented"); 949 950 mib[0] = CTL_KERN; 951 mib[1] = KERN_FILE; 952 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 953 warn("sysctl: KERN_FILE"); 954 return (-1); 955 } 956 /* We need to align (struct file *) in the buffer. */ 957 offset = len % sizeof(off_t); 958 if ((buf = malloc(len + offset)) == NULL) 959 err(1, "malloc"); 960 if (sysctl(mib, 2, buf + offset, &len, NULL, 0) == -1) { 961 warn("sysctl: KERN_FILE"); 962 return (-1); 963 } 964 *abuf = buf; 965 *alen = len; 966 *aoffset = (buf + offset); 967 return (0); 968 } 969 970 void 971 usage() 972 { 973 974 (void)fprintf(stderr, 975 "usage: %s [-T|-f|-s|-t|-v] [-ghkmn] [-M core] [-N system]\n", 976 getprogname()); 977 exit(1); 978 } 979
Indexes created Tue Sep 23 23:09:58 GMT 2025