pstat.c revision 1.86
1 /* $NetBSD: pstat.c,v 1.86 2004/02/22 12:30:11 jdc 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 1.86 2004/02/22 12:30:11 jdc 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 *, char **)); 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:fghikmnstv")) != -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 'g': 220 kflag = 3; /* 1k ^ 3 */ 221 break; 222 case 'h': 223 hflag = 1; 224 break; 225 case 'm': 226 kflag = 2; /* 1k ^ 2 */ 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, hflag); 276 exit(0); 277 } 278 279 #define VPTRSZ sizeof(struct vnode *) 280 #define VNODESZ sizeof(struct vnode) 281 #define PTRSTRWIDTH ((int)sizeof(void *) * 2) /* Width of resulting string 282 when pointer is printed 283 in hexadecimal. */ 284 285 void 286 vnodemode() 287 { 288 char *e_vnodebase, *endvnode, *evp; 289 struct vnode *vp; 290 struct mount *maddr, *mp; 291 int numvnodes, ovflw; 292 int (*vnode_fsprint) 293 __P((struct vnode *, int)); /* per-fs data printer */ 294 295 mp = NULL; 296 e_vnodebase = loadvnodes(&numvnodes); 297 if (totalflag) { 298 (void)printf("%7d vnodes\n", numvnodes); 299 goto out; 300 } 301 endvnode = e_vnodebase + numvnodes * (VPTRSZ + VNODESZ); 302 (void)printf("%d active vnodes\n", numvnodes); 303 304 #define ST mp->mnt_stat 305 #define FSTYPE_IS(mp, name) \ 306 (strncmp((mp)->mnt_stat.f_fstypename, (name), MFSNAMELEN) == 0) 307 maddr = NULL; 308 vnode_fsprint = NULL; 309 for (evp = e_vnodebase; evp < endvnode; evp += VPTRSZ + VNODESZ) { 310 vp = (struct vnode *)(evp + VPTRSZ); 311 if (vp->v_mount != maddr) { 312 /* 313 * New filesystem 314 */ 315 if ((mp = getmnt(vp->v_mount)) == NULL) 316 continue; 317 maddr = vp->v_mount; 318 mount_print(mp); 319 vnode_header(); 320 if (FSTYPE_IS(mp, MOUNT_FFS) || 321 FSTYPE_IS(mp, MOUNT_MFS)) { 322 ufs_header(); 323 vnode_fsprint = ufs_print; 324 } else if (FSTYPE_IS(mp, MOUNT_NFS)) { 325 nfs_header(); 326 vnode_fsprint = nfs_print; 327 } else if (FSTYPE_IS(mp, MOUNT_EXT2FS)) { 328 ufs_header(); 329 vnode_fsprint = ext2fs_print; 330 } else if (FSTYPE_IS(mp, MOUNT_NULL) || 331 FSTYPE_IS(mp, MOUNT_OVERLAY) || 332 FSTYPE_IS(mp, MOUNT_UMAP)) { 333 layer_header(); 334 vnode_fsprint = layer_print; 335 } else if (FSTYPE_IS(mp, MOUNT_UNION)) { 336 union_header(); 337 vnode_fsprint = union_print; 338 } else 339 vnode_fsprint = NULL; 340 (void)printf("\n"); 341 } 342 ovflw = vnode_print(*(struct vnode **)evp, vp); 343 if (VTOI(vp) != NULL && vnode_fsprint != NULL) 344 (*vnode_fsprint)(vp, ovflw); 345 (void)printf("\n"); 346 } 347 348 out: 349 free(e_vnodebase); 350 } 351 352 int 353 getflags(fd, p, flags) 354 const struct flagbit_desc *fd; 355 char *p; 356 u_int flags; 357 { 358 char *q = p; 359 360 if (flags == 0) { 361 *p++ = '-'; 362 *p = '\0'; 363 return (0); 364 } 365 366 for (; fd->fd_flags != 0; fd++) 367 if ((flags & fd->fd_flags) != 0) 368 *p++ = fd->fd_mark; 369 *p = '\0'; 370 return (p - q); 371 } 372 373 const struct flagbit_desc vnode_flags[] = { 374 { VROOT, 'R' }, 375 { VTEXT, 'T' }, 376 { VSYSTEM, 'S' }, 377 { VISTTY, 'I' }, 378 { VEXECMAP, 'E' }, 379 { VXLOCK, 'L' }, 380 { VXWANT, 'W' }, 381 { VBWAIT, 'B' }, 382 { VALIASED, 'A' }, 383 { VDIROP, 'D' }, 384 { VLAYER, 'Y' }, 385 { VONWORKLST, 'O' }, 386 { 0, '\0' }, 387 }; 388 389 void 390 vnode_header() 391 { 392 393 (void)printf("%-*s TYP VFLAG USE HOLD TAG NPAGE", 394 PTRSTRWIDTH, "ADDR"); 395 } 396 397 int 398 vnode_print(avnode, vp) 399 struct vnode *avnode; 400 struct vnode *vp; 401 { 402 char *type, flags[sizeof(vnode_flags) / sizeof(vnode_flags[0])]; 403 int ovflw; 404 405 /* 406 * set type 407 */ 408 switch (vp->v_type) { 409 case VNON: 410 type = "non"; break; 411 case VREG: 412 type = "reg"; break; 413 case VDIR: 414 type = "dir"; break; 415 case VBLK: 416 type = "blk"; break; 417 case VCHR: 418 type = "chr"; break; 419 case VLNK: 420 type = "lnk"; break; 421 case VSOCK: 422 type = "soc"; break; 423 case VFIFO: 424 type = "fif"; break; 425 case VBAD: 426 type = "bad"; break; 427 default: 428 type = "unk"; break; 429 } 430 /* 431 * gather flags 432 */ 433 (void)getflags(vnode_flags, flags, vp->v_flag); 434 435 ovflw = 0; 436 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)avnode); 437 PRWORD(ovflw, " %*s", 4, 1, type); 438 PRWORD(ovflw, " %*s", 6, 1, flags); 439 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_usecount); 440 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_holdcnt); 441 PRWORD(ovflw, " %*d", 4, 1, vp->v_tag); 442 PRWORD(ovflw, " %*d", 6, 1, vp->v_uobj.uo_npages); 443 return (ovflw); 444 } 445 446 const struct flagbit_desc ufs_flags[] = { 447 { IN_ACCESS, 'A' }, 448 { IN_CHANGE, 'C' }, 449 { IN_UPDATE, 'U' }, 450 { IN_MODIFIED, 'M' }, 451 { IN_ACCESSED, 'a' }, 452 { IN_RENAME, 'R' }, 453 { IN_SHLOCK, 'S' }, 454 { IN_EXLOCK, 'E' }, 455 { IN_CLEANING, 'c' }, 456 { IN_ADIROP, 'D' }, 457 { IN_SPACECOUNTED, 's' }, 458 { 0, '\0' }, 459 }; 460 461 void 462 ufs_header() 463 { 464 465 (void)printf(" FILEID IFLAG RDEV|SZ"); 466 } 467 468 int 469 ufs_print(vp, ovflw) 470 struct vnode *vp; 471 int ovflw; 472 { 473 struct inode inode, *ip = &inode; 474 union dinode { 475 struct ufs1_dinode dp1; 476 struct ufs2_dinode dp2; 477 } dip; 478 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 479 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 480 char *name; 481 mode_t type; 482 dev_t rdev; 483 484 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 485 KGETRET(ip->i_din.ffs1_din, &dip, sizeof (struct ufs1_dinode), 486 "inode's dinode"); 487 488 if (ip->i_size == dip.dp1.di_size) 489 rdev = dip.dp1.di_rdev; 490 else { 491 KGETRET(ip->i_din.ffs1_din, &dip, sizeof (struct ufs2_dinode), 492 "inode's UFS2 dinode"); 493 rdev = dip.dp2.di_rdev; 494 } 495 496 /* 497 * XXX need to to locking state. 498 */ 499 500 (void)getflags(ufs_flags, flags, ip->i_flag); 501 PRWORD(ovflw, " %*d", 7, 1, ip->i_number); 502 PRWORD(ovflw, " %*s", 6, 1, flags); 503 type = ip->i_mode & S_IFMT; 504 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) { 505 if (usenumflag || 506 (name = devname(rdev, type)) == NULL) { 507 snprintf(dev, sizeof(dev), "%d,%d", 508 major(rdev), minor(rdev)); 509 name = dev; 510 } 511 PRWORD(ovflw, " %*s", 8, 1, name); 512 } else 513 PRWORD(ovflw, " %*lld", 8, 1, (long long)ip->i_size); 514 return 0; 515 } 516 517 int 518 ext2fs_print(vp, ovflw) 519 struct vnode *vp; 520 int ovflw; 521 { 522 struct inode inode, *ip = &inode; 523 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 524 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 525 char *name; 526 mode_t type; 527 528 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 529 530 /* 531 * XXX need to to locking state. 532 */ 533 534 (void)getflags(ufs_flags, flags, ip->i_flag); 535 PRWORD(ovflw, " %*d", 7, 1, ip->i_number); 536 PRWORD(ovflw, " %*s", 6, 1, flags); 537 type = ip->i_e2fs_mode & S_IFMT; 538 if (S_ISCHR(ip->i_e2fs_mode) || S_ISBLK(ip->i_e2fs_mode)) { 539 if (usenumflag || 540 (name = devname(ip->i_e2fs_rdev, type)) == NULL) { 541 snprintf(dev, sizeof(dev), "%d,%d", 542 major(ip->i_e2fs_rdev), minor(ip->i_e2fs_rdev)); 543 name = dev; 544 } 545 PRWORD(ovflw, " %*s", 8, 1, name); 546 } else 547 PRWORD(ovflw, " %*u", 8, 1, (u_int)ip->i_e2fs_size); 548 return (0); 549 } 550 551 const struct flagbit_desc nfs_flags[] = { 552 { NFLUSHWANT, 'W' }, 553 { NFLUSHINPROG, 'P' }, 554 { NMODIFIED, 'M' }, 555 { NWRITEERR, 'E' }, 556 { NQNFSNONCACHE, 'X' }, 557 { NQNFSWRITE, 'O' }, 558 { NQNFSEVICTED, 'G' }, 559 { NACC, 'A' }, 560 { NUPD, 'U' }, 561 { NCHG, 'C' }, 562 { 0, '\0' }, 563 }; 564 565 void 566 nfs_header() 567 { 568 569 (void)printf(" FILEID NFLAG RDEV|SZ"); 570 } 571 572 int 573 nfs_print(vp, ovflw) 574 struct vnode *vp; 575 int ovflw; 576 { 577 struct nfsnode nfsnode, *np = &nfsnode; 578 char flags[sizeof(nfs_flags) / sizeof(nfs_flags[0])]; 579 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 580 struct vattr va; 581 char *name; 582 mode_t type; 583 584 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 585 (void)getflags(nfs_flags, flags, np->n_flag); 586 587 KGETRET(np->n_vattr, &va, sizeof(va), "vnode attr"); 588 PRWORD(ovflw, " %*ld", 7, 1, (long)va.va_fileid); 589 PRWORD(ovflw, " %*s", 6, 1, flags); 590 switch (va.va_type) { 591 case VCHR: 592 type = S_IFCHR; 593 goto device; 594 595 case VBLK: 596 type = S_IFBLK; 597 device: 598 if (usenumflag || (name = devname(va.va_rdev, type)) == NULL) { 599 (void)snprintf(dev, sizeof(dev), "%d,%d", 600 major(va.va_rdev), minor(va.va_rdev)); 601 name = dev; 602 } 603 PRWORD(ovflw, " %*s", 8, 1, name); 604 break; 605 default: 606 PRWORD(ovflw, " %*lld", 8, 1, (long long)np->n_size); 607 break; 608 } 609 return (0); 610 } 611 612 void 613 layer_header() 614 { 615 616 (void)printf(" %*s", PTRSTRWIDTH, "LOWER"); 617 } 618 619 int 620 layer_print(vp, ovflw) 621 struct vnode *vp; 622 int ovflw; 623 { 624 struct layer_node lnode, *lp = &lnode; 625 626 KGETRET(VTOLAYER(vp), &lnode, sizeof(lnode), "layer vnode"); 627 628 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)lp->layer_lowervp); 629 return (0); 630 } 631 632 void 633 union_header() 634 { 635 636 (void)printf(" %*s %*s", PTRSTRWIDTH, "UPPER", PTRSTRWIDTH, "LOWER"); 637 } 638 639 int 640 union_print(vp, ovflw) 641 struct vnode *vp; 642 int ovflw; 643 { 644 struct union_node unode, *up = &unode; 645 646 KGETRET(VTOUNION(vp), &unode, sizeof(unode), "vnode's unode"); 647 648 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)up->un_uppervp); 649 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)up->un_lowervp); 650 return (0); 651 } 652 653 /* 654 * Given a pointer to a mount structure in kernel space, 655 * read it in and return a usable pointer to it. 656 */ 657 struct mount * 658 getmnt(maddr) 659 struct mount *maddr; 660 { 661 static struct mtab { 662 struct mtab *next; 663 struct mount *maddr; 664 struct mount mount; 665 } *mhead = NULL; 666 struct mtab *mt; 667 668 for (mt = mhead; mt != NULL; mt = mt->next) 669 if (maddr == mt->maddr) 670 return (&mt->mount); 671 if ((mt = malloc(sizeof(struct mtab))) == NULL) 672 err(1, "malloc"); 673 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 674 mt->maddr = maddr; 675 mt->next = mhead; 676 mhead = mt; 677 return (&mt->mount); 678 } 679 680 void 681 mount_print(mp) 682 struct mount *mp; 683 { 684 int flags; 685 686 (void)printf("*** MOUNT %s %s on %s", ST.f_fstypename, 687 ST.f_mntfromname, ST.f_mntonname); 688 if ((flags = mp->mnt_flag) != 0) { 689 int i; 690 const char *sep = " ("; 691 692 for (i = 0; i <= sizeof mnt_flags / sizeof mnt_flags[0]; i++) { 693 if (flags & mnt_flags[i].m_flag) { 694 (void)printf("%s%s", sep, mnt_flags[i].m_name); 695 flags &= ~mnt_flags[i].m_flag; 696 sep = ","; 697 } 698 } 699 if (flags) 700 (void)printf("%sunknown_flags:%x", sep, flags); 701 (void)printf(")"); 702 } 703 (void)printf("\n"); 704 } 705 706 char * 707 loadvnodes(avnodes) 708 int *avnodes; 709 { 710 int mib[2]; 711 size_t copysize; 712 char *vnodebase; 713 714 if (memf != NULL) { 715 /* 716 * do it by hand 717 */ 718 return (kinfo_vnodes(avnodes)); 719 } 720 mib[0] = CTL_KERN; 721 mib[1] = KERN_VNODE; 722 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 723 err(1, "sysctl: KERN_VNODE"); 724 if ((vnodebase = malloc(copysize)) == NULL) 725 err(1, "malloc"); 726 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 727 err(1, "sysctl: KERN_VNODE"); 728 if (copysize % (VPTRSZ + VNODESZ)) 729 errx(1, "vnode size mismatch"); 730 *avnodes = copysize / (VPTRSZ + VNODESZ); 731 732 return (vnodebase); 733 } 734 735 /* 736 * simulate what a running kernel does in in kinfo_vnode 737 */ 738 char * 739 kinfo_vnodes(avnodes) 740 int *avnodes; 741 { 742 struct mntlist mountlist; 743 struct mount *mp, mount; 744 struct vnode *vp, vnode; 745 char *beg, *bp, *ep; 746 int numvnodes; 747 748 KGET(V_NUMV, numvnodes); 749 if ((bp = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 750 err(1, "malloc"); 751 beg = bp; 752 ep = bp + (numvnodes + 20) * (VPTRSZ + VNODESZ); 753 KGET(V_MOUNTLIST, mountlist); 754 for (mp = mountlist.cqh_first;; 755 mp = mount.mnt_list.cqe_next) { 756 KGET2(mp, &mount, sizeof(mount), "mount entry"); 757 for (vp = mount.mnt_vnodelist.lh_first; 758 vp != NULL; vp = vnode.v_mntvnodes.le_next) { 759 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 760 if (bp + VPTRSZ + VNODESZ > ep) 761 /* XXX - should realloc */ 762 errx(1, "no more room for vnodes"); 763 memmove(bp, &vp, VPTRSZ); 764 bp += VPTRSZ; 765 memmove(bp, &vnode, VNODESZ); 766 bp += VNODESZ; 767 } 768 if (mp == mountlist.cqh_last) 769 break; 770 } 771 *avnodes = (bp - beg) / (VPTRSZ + VNODESZ); 772 return (beg); 773 } 774 775 void 776 ttymode() 777 { 778 int ntty; 779 struct ttylist_head tty_head; 780 struct tty *tp, tty; 781 782 KGET(TTY_NTTY, ntty); 783 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 784 KGET(TTY_TTYLIST, tty_head); 785 (void)printf( 786 " LINE RAW CAN OUT HWT LWT COL STATE %-*s PGID DISC\n", 787 PTRSTRWIDTH, "SESS"); 788 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 789 KGET2(tp, &tty, sizeof tty, "tty struct"); 790 ttyprt(&tty); 791 } 792 } 793 794 static const struct flagbit_desc ttystates[] = { 795 { TS_ISOPEN, 'O'}, 796 { TS_DIALOUT, '>'}, 797 { TS_CARR_ON, 'C'}, 798 { TS_TIMEOUT, 'T'}, 799 { TS_FLUSH, 'F'}, 800 { TS_BUSY, 'B'}, 801 { TS_ASLEEP, 'A'}, 802 { TS_XCLUDE, 'X'}, 803 { TS_TTSTOP, 'S'}, 804 { TS_TBLOCK, 'K'}, 805 { TS_ASYNC, 'Y'}, 806 { TS_BKSL, 'D'}, 807 { TS_ERASE, 'E'}, 808 { TS_LNCH, 'L'}, 809 { TS_TYPEN, 'P'}, 810 { TS_CNTTB, 'N'}, 811 { 0, '\0'}, 812 }; 813 814 void 815 ttyprt(tp) 816 struct tty *tp; 817 { 818 char state[sizeof(ttystates) / sizeof(ttystates[0]) + 1]; 819 char dev[2 + 3 + 1 + 5 + 1]; /* 12bit major + 20bit minor */ 820 struct linesw t_linesw; 821 char *name, buffer; 822 pid_t pgid; 823 int n, ovflw; 824 825 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) { 826 (void)snprintf(dev, sizeof(dev), "0x%3x:%x", 827 major(tp->t_dev), minor(tp->t_dev)); 828 name = dev; 829 } 830 ovflw = 0; 831 PRWORD(ovflw, "%-*s", 7, 0, name); 832 PRWORD(ovflw, " %*d", 3, 1, tp->t_rawq.c_cc); 833 PRWORD(ovflw, " %*d", 4, 1, tp->t_canq.c_cc); 834 PRWORD(ovflw, " %*d", 4, 1, tp->t_outq.c_cc); 835 PRWORD(ovflw, " %*d", 5, 1, tp->t_hiwat); 836 PRWORD(ovflw, " %*d", 4, 1, tp->t_lowat); 837 PRWORD(ovflw, " %*d", 8, 1, tp->t_column); 838 n = getflags(ttystates, state, tp->t_state); 839 if (tp->t_wopen) { 840 state[n++] = 'W'; 841 state[n] = '\0'; 842 } 843 PRWORD(ovflw, " %-*s", 7, 1, state); 844 PRWORD(ovflw, " %*lX", PTRSTRWIDTH + 1, 1, (u_long)tp->t_session); 845 pgid = 0; 846 if (tp->t_pgrp != NULL) 847 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 848 PRWORD(ovflw, " %*d", 6, 1, pgid); 849 KGET2(tp->t_linesw, &t_linesw, sizeof(t_linesw), 850 "line discipline switch table"); 851 name = t_linesw.l_name; 852 (void)putchar(' '); 853 for (;;) { 854 KGET2(name, &buffer, sizeof(buffer), "line discipline name"); 855 if (buffer == '\0') 856 break; 857 (void)putchar(buffer); 858 name++; 859 } 860 (void)putchar('\n'); 861 } 862 863 static const struct flagbit_desc filemode_flags[] = { 864 { FREAD, 'R' }, 865 { FWRITE, 'W' }, 866 { FAPPEND, 'A' }, 867 #ifdef FSHLOCK /* currently gone */ 868 { FSHLOCK, 'S' }, 869 { FEXLOCK, 'X' }, 870 #endif 871 { FASYNC, 'I' }, 872 { 0, '\0' }, 873 }; 874 875 void 876 filemode() 877 { 878 struct file *fp; 879 struct file *addr; 880 char flags[sizeof(filemode_flags) / sizeof(filemode_flags[0])]; 881 char *buf, *offset; 882 int len, maxfile, nfile, ovflw; 883 static const char * const dtypes[] = 884 { "???", "inode", "socket", "pipe" }; 885 886 KGET(FNL_MAXFILE, maxfile); 887 if (totalflag) { 888 KGET(FNL_NFILE, nfile); 889 (void)printf("%3d/%3d files\n", nfile, maxfile); 890 return; 891 } 892 if (getfiles(&buf, &len, &offset) == -1) 893 return; 894 /* 895 * Getfiles returns in malloc'd memory a pointer to the first file 896 * structure, and then an array of file structs (whose addresses are 897 * derivable from the previous entry). 898 */ 899 addr = ((struct filelist *)offset)->lh_first; 900 fp = (struct file *)(offset + sizeof(struct filelist)); 901 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 902 903 (void)printf("%d/%d open files\n", nfile, maxfile); 904 (void)printf("%*s%s%*s TYPE FLG CNT MSG %*s%s%*s OFFSET\n", 905 (PTRSTRWIDTH - 4) / 2, "", " LOC", (PTRSTRWIDTH - 4) / 2, "", 906 (PTRSTRWIDTH - 4) / 2, "", "DATA", (PTRSTRWIDTH - 4) / 2, ""); 907 for (; (char *)fp < offset + len; addr = fp->f_list.le_next, fp++) { 908 if ((unsigned)fp->f_type > DTYPE_PIPE) 909 continue; 910 ovflw = 0; 911 (void)getflags(filemode_flags, flags, fp->f_flag); 912 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)addr); 913 PRWORD(ovflw, " %-*s", 9, 1, dtypes[fp->f_type]); 914 PRWORD(ovflw, " %*s", 6, 1, flags); 915 PRWORD(ovflw, " %*d", 5, 1, fp->f_count); 916 PRWORD(ovflw, " %*d", 5, 1, fp->f_msgcount); 917 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 2, (long)fp->f_data); 918 if (fp->f_offset < 0) 919 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 920 (long long)fp->f_offset); 921 else 922 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 923 (long long)fp->f_offset); 924 } 925 free(buf); 926 } 927 928 int 929 getfiles(abuf, alen, aoffset) 930 char **abuf; 931 int *alen; 932 char **aoffset; 933 { 934 size_t len; 935 int mib[2]; 936 char *buf; 937 size_t offset; 938 939 /* 940 * XXX 941 * Add emulation of KINFO_FILE here. 942 */ 943 if (memf != NULL) 944 errx(1, "files on dead kernel, not implemented"); 945 946 mib[0] = CTL_KERN; 947 mib[1] = KERN_FILE; 948 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 949 warn("sysctl: KERN_FILE"); 950 return (-1); 951 } 952 /* We need to align (struct file *) in the buffer. */ 953 offset = len % sizeof(off_t); 954 if ((buf = malloc(len + offset)) == NULL) 955 err(1, "malloc"); 956 if (sysctl(mib, 2, buf + offset, &len, NULL, 0) == -1) { 957 warn("sysctl: KERN_FILE"); 958 return (-1); 959 } 960 *abuf = buf; 961 *alen = len; 962 *aoffset = (buf + offset); 963 return (0); 964 } 965 966 void 967 usage() 968 { 969 970 (void)fprintf(stderr, 971 "usage: %s [-T|-f|-s|-t|-v] [-ghkmn] [-M core] [-N system]\n", 972 getprogname()); 973 exit(1); 974 } 975
Indexes created Mon Sep 22 13:09:51 GMT 2025