pstat.c revision 1.83
1 /* $NetBSD: pstat.c,v 1.83 2003/08/07 11:25:38 agc 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 1.83 2003/08/07 11:25:38 agc 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 char *nlistf = NULL; 105 char *memf = NULL; 106 kvm_t *kd; 107 108 static const struct { 109 u_int m_flag; 110 u_int m_visible; 111 const char *m_name; 112 } mnt_flags[] = { 113 __MNT_FLAGS 114 }; 115 116 struct flagbit_desc { 117 u_int fd_flags; 118 char fd_mark; 119 }; 120 121 #define SVAR(var) __STRING(var) /* to force expansion */ 122 #define KGET(idx, var) \ 123 KGET1(idx, &var, sizeof(var), SVAR(var)) 124 #define KGET1(idx, p, s, msg) \ 125 KGET2(nl[idx].n_value, p, s, msg) 126 #define KGET2(addr, p, s, msg) do { \ 127 if (kvm_read(kd, (u_long)(addr), p, s) != s) \ 128 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 129 } while (/* CONSTCOND */0) 130 #define KGETRET(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 return (0); \ 134 } \ 135 } while (/* CONSTCOND */0) 136 137 #if 1 /* This is copied from vmstat/vmstat.c */ 138 /* 139 * Print single word. `ovflow' is number of characters didn't fit 140 * on the last word. `fmt' is a format string to print this word. 141 * It must contain asterisk for field width. `width' is a width 142 * occupied by this word. `fixed' is a number of constant chars in 143 * `fmt'. `val' is a value to be printed using format string `fmt'. 144 */ 145 #define PRWORD(ovflw, fmt, width, fixed, val) do { \ 146 (ovflw) += printf((fmt), \ 147 (width) - (fixed) - (ovflw) > 0 ? \ 148 (width) - (fixed) - (ovflw) : 0, \ 149 (val)) - (width); \ 150 if ((ovflw) < 0) \ 151 (ovflw) = 0; \ 152 } while (/* CONSTCOND */0) 153 #endif 154 155 void filemode __P((void)); 156 int getfiles __P((char **, int *)); 157 int getflags __P((const struct flagbit_desc *, char *, u_int)); 158 struct mount * 159 getmnt __P((struct mount *)); 160 char * kinfo_vnodes __P((int *)); 161 void layer_header __P((void)); 162 int layer_print __P((struct vnode *, int)); 163 char * loadvnodes __P((int *)); 164 int main __P((int, char **)); 165 void mount_print __P((struct mount *)); 166 void nfs_header __P((void)); 167 int nfs_print __P((struct vnode *, int)); 168 void ttymode __P((void)); 169 void ttyprt __P((struct tty *)); 170 void ufs_header __P((void)); 171 int ufs_print __P((struct vnode *, int)); 172 int ext2fs_print __P((struct vnode *, int)); 173 void union_header __P((void)); 174 int union_print __P((struct vnode *, int)); 175 void usage __P((void)); 176 void vnode_header __P((void)); 177 int vnode_print __P((struct vnode *, struct vnode *)); 178 void vnodemode __P((void)); 179 180 int 181 main(argc, argv) 182 int argc; 183 char *argv[]; 184 { 185 int ch, i, quit, ret; 186 int fileflag, swapflag, ttyflag, vnodeflag; 187 gid_t egid = getegid(); 188 char buf[_POSIX2_LINE_MAX]; 189 190 setegid(getgid()); 191 fileflag = swapflag = ttyflag = vnodeflag = 0; 192 while ((ch = getopt(argc, argv, "TM:N:fiknstv")) != -1) 193 switch (ch) { 194 case 'f': 195 fileflag = 1; 196 break; 197 case 'M': 198 memf = optarg; 199 break; 200 case 'N': 201 nlistf = optarg; 202 break; 203 case 'n': 204 usenumflag = 1; 205 break; 206 case 's': 207 swapflag = 1; 208 break; 209 case 'T': 210 totalflag = 1; 211 break; 212 case 't': 213 ttyflag = 1; 214 break; 215 case 'k': 216 kflag = 1; 217 break; 218 case 'v': 219 case 'i': /* Backward compatibility. */ 220 vnodeflag = 1; 221 break; 222 default: 223 usage(); 224 } 225 argc -= optind; 226 argv += optind; 227 228 /* 229 * Discard setgid privileges. If not the running kernel, we toss 230 * them away totally so that bad guys can't print interesting stuff 231 * from kernel memory, otherwise switch back to kmem for the 232 * duration of the kvm_openfiles() call. 233 */ 234 if (nlistf != NULL || memf != NULL) 235 (void)setgid(getgid()); 236 else 237 (void)setegid(egid); 238 239 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0) 240 errx(1, "kvm_openfiles: %s", buf); 241 242 /* get rid of it now anyway */ 243 if (nlistf == NULL && memf == NULL) 244 (void)setgid(getgid()); 245 if ((ret = kvm_nlist(kd, nl)) != 0) { 246 if (ret == -1) 247 errx(1, "kvm_nlist: %s", kvm_geterr(kd)); 248 for (i = quit = 0; i <= NLMANDATORY; i++) 249 if (!nl[i].n_value) { 250 quit = 1; 251 warnx("undefined symbol: %s", nl[i].n_name); 252 } 253 if (quit) 254 exit(1); 255 } 256 if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag)) 257 usage(); 258 if (fileflag || totalflag) 259 filemode(); 260 if (vnodeflag || totalflag) 261 vnodemode(); 262 if (ttyflag) 263 ttymode(); 264 if (swapflag || totalflag) 265 list_swap(0, kflag, 0, totalflag, 1); 266 exit(0); 267 } 268 269 #define VPTRSZ sizeof(struct vnode *) 270 #define VNODESZ sizeof(struct vnode) 271 #define PTRSTRWIDTH ((int)sizeof(void *) * 2) /* Width of resulting string 272 when pointer is printed 273 in hexadecimal. */ 274 275 void 276 vnodemode() 277 { 278 char *e_vnodebase, *endvnode, *evp; 279 struct vnode *vp; 280 struct mount *maddr, *mp; 281 int numvnodes, ovflw; 282 int (*vnode_fsprint) 283 __P((struct vnode *, int)); /* per-fs data printer */ 284 285 mp = NULL; 286 e_vnodebase = loadvnodes(&numvnodes); 287 if (totalflag) { 288 (void)printf("%7d vnodes\n", numvnodes); 289 goto out; 290 } 291 endvnode = e_vnodebase + numvnodes * (VPTRSZ + VNODESZ); 292 (void)printf("%d active vnodes\n", numvnodes); 293 294 #define ST mp->mnt_stat 295 #define FSTYPE_IS(mp, name) \ 296 (strncmp((mp)->mnt_stat.f_fstypename, (name), MFSNAMELEN) == 0) 297 maddr = NULL; 298 vnode_fsprint = NULL; 299 for (evp = e_vnodebase; evp < endvnode; evp += VPTRSZ + VNODESZ) { 300 vp = (struct vnode *)(evp + VPTRSZ); 301 if (vp->v_mount != maddr) { 302 /* 303 * New filesystem 304 */ 305 if ((mp = getmnt(vp->v_mount)) == NULL) 306 continue; 307 maddr = vp->v_mount; 308 mount_print(mp); 309 vnode_header(); 310 if (FSTYPE_IS(mp, MOUNT_FFS) || 311 FSTYPE_IS(mp, MOUNT_MFS)) { 312 ufs_header(); 313 vnode_fsprint = ufs_print; 314 } else if (FSTYPE_IS(mp, MOUNT_NFS)) { 315 nfs_header(); 316 vnode_fsprint = nfs_print; 317 } else if (FSTYPE_IS(mp, MOUNT_EXT2FS)) { 318 ufs_header(); 319 vnode_fsprint = ext2fs_print; 320 } else if (FSTYPE_IS(mp, MOUNT_NULL) || 321 FSTYPE_IS(mp, MOUNT_OVERLAY) || 322 FSTYPE_IS(mp, MOUNT_UMAP)) { 323 layer_header(); 324 vnode_fsprint = layer_print; 325 } else if (FSTYPE_IS(mp, MOUNT_UNION)) { 326 union_header(); 327 vnode_fsprint = union_print; 328 } else 329 vnode_fsprint = NULL; 330 (void)printf("\n"); 331 } 332 ovflw = vnode_print(*(struct vnode **)evp, vp); 333 if (VTOI(vp) != NULL && vnode_fsprint != NULL) 334 (*vnode_fsprint)(vp, ovflw); 335 (void)printf("\n"); 336 } 337 338 out: 339 free(e_vnodebase); 340 } 341 342 int 343 getflags(fd, p, flags) 344 const struct flagbit_desc *fd; 345 char *p; 346 u_int flags; 347 { 348 char *q = p; 349 350 if (flags == 0) { 351 *p++ = '-'; 352 *p = '\0'; 353 return (0); 354 } 355 356 for (; fd->fd_flags != 0; fd++) 357 if ((flags & fd->fd_flags) != 0) 358 *p++ = fd->fd_mark; 359 *p = '\0'; 360 return (p - q); 361 } 362 363 const struct flagbit_desc vnode_flags[] = { 364 { VROOT, 'R' }, 365 { VTEXT, 'T' }, 366 { VSYSTEM, 'S' }, 367 { VISTTY, 'I' }, 368 { VEXECMAP, 'E' }, 369 { VXLOCK, 'L' }, 370 { VXWANT, 'W' }, 371 { VBWAIT, 'B' }, 372 { VALIASED, 'A' }, 373 { VDIROP, 'D' }, 374 { VLAYER, 'Y' }, 375 { VONWORKLST, 'O' }, 376 { 0, '\0' }, 377 }; 378 379 void 380 vnode_header() 381 { 382 383 (void)printf("%-*s TYP VFLAG USE HOLD TAG NPAGE", 384 PTRSTRWIDTH, "ADDR"); 385 } 386 387 int 388 vnode_print(avnode, vp) 389 struct vnode *avnode; 390 struct vnode *vp; 391 { 392 char *type, flags[sizeof(vnode_flags) / sizeof(vnode_flags[0])]; 393 int ovflw; 394 395 /* 396 * set type 397 */ 398 switch (vp->v_type) { 399 case VNON: 400 type = "non"; break; 401 case VREG: 402 type = "reg"; break; 403 case VDIR: 404 type = "dir"; break; 405 case VBLK: 406 type = "blk"; break; 407 case VCHR: 408 type = "chr"; break; 409 case VLNK: 410 type = "lnk"; break; 411 case VSOCK: 412 type = "soc"; break; 413 case VFIFO: 414 type = "fif"; break; 415 case VBAD: 416 type = "bad"; break; 417 default: 418 type = "unk"; break; 419 } 420 /* 421 * gather flags 422 */ 423 (void)getflags(vnode_flags, flags, vp->v_flag); 424 425 ovflw = 0; 426 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)avnode); 427 PRWORD(ovflw, " %*s", 4, 1, type); 428 PRWORD(ovflw, " %*s", 6, 1, flags); 429 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_usecount); 430 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_holdcnt); 431 PRWORD(ovflw, " %*d", 4, 1, vp->v_tag); 432 PRWORD(ovflw, " %*d", 6, 1, vp->v_uobj.uo_npages); 433 return (ovflw); 434 } 435 436 const struct flagbit_desc ufs_flags[] = { 437 { IN_ACCESS, 'A' }, 438 { IN_CHANGE, 'C' }, 439 { IN_UPDATE, 'U' }, 440 { IN_MODIFIED, 'M' }, 441 { IN_ACCESSED, 'a' }, 442 { IN_RENAME, 'R' }, 443 { IN_SHLOCK, 'S' }, 444 { IN_EXLOCK, 'E' }, 445 { IN_CLEANING, 'c' }, 446 { IN_ADIROP, 'D' }, 447 { IN_SPACECOUNTED, 's' }, 448 { 0, '\0' }, 449 }; 450 451 void 452 ufs_header() 453 { 454 455 (void)printf(" FILEID IFLAG RDEV|SZ"); 456 } 457 458 int 459 ufs_print(vp, ovflw) 460 struct vnode *vp; 461 int ovflw; 462 { 463 struct inode inode, *ip = &inode; 464 union dinode { 465 struct ufs1_dinode dp1; 466 struct ufs2_dinode dp2; 467 } dip; 468 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 469 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 470 char *name; 471 mode_t type; 472 dev_t rdev; 473 474 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 475 KGETRET(ip->i_din.ffs1_din, &dip, sizeof (struct ufs1_dinode), 476 "inode's dinode"); 477 478 if (ip->i_size == dip.dp1.di_size) 479 rdev = dip.dp1.di_rdev; 480 else { 481 KGETRET(ip->i_din.ffs1_din, &dip, sizeof (struct ufs2_dinode), 482 "inode's UFS2 dinode"); 483 rdev = dip.dp2.di_rdev; 484 } 485 486 /* 487 * XXX need to to locking state. 488 */ 489 490 (void)getflags(ufs_flags, flags, ip->i_flag); 491 PRWORD(ovflw, " %*d", 7, 1, ip->i_number); 492 PRWORD(ovflw, " %*s", 6, 1, flags); 493 type = ip->i_mode & S_IFMT; 494 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) { 495 if (usenumflag || 496 (name = devname(rdev, type)) == NULL) { 497 snprintf(dev, sizeof(dev), "%d,%d", 498 major(rdev), minor(rdev)); 499 name = dev; 500 } 501 PRWORD(ovflw, " %*s", 8, 1, name); 502 } else 503 PRWORD(ovflw, " %*lld", 8, 1, (long long)ip->i_size); 504 return 0; 505 } 506 507 int 508 ext2fs_print(vp, ovflw) 509 struct vnode *vp; 510 int ovflw; 511 { 512 struct inode inode, *ip = &inode; 513 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 514 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 515 char *name; 516 mode_t type; 517 518 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 519 520 /* 521 * XXX need to to locking state. 522 */ 523 524 (void)getflags(ufs_flags, flags, ip->i_flag); 525 PRWORD(ovflw, " %*d", 7, 1, ip->i_number); 526 PRWORD(ovflw, " %*s", 6, 1, flags); 527 type = ip->i_e2fs_mode & S_IFMT; 528 if (S_ISCHR(ip->i_e2fs_mode) || S_ISBLK(ip->i_e2fs_mode)) { 529 if (usenumflag || 530 (name = devname(ip->i_e2fs_rdev, type)) == NULL) { 531 snprintf(dev, sizeof(dev), "%d,%d", 532 major(ip->i_e2fs_rdev), minor(ip->i_e2fs_rdev)); 533 name = dev; 534 } 535 PRWORD(ovflw, " %*s", 8, 1, name); 536 } else 537 PRWORD(ovflw, " %*u", 8, 1, (u_int)ip->i_e2fs_size); 538 return (0); 539 } 540 541 const struct flagbit_desc nfs_flags[] = { 542 { NFLUSHWANT, 'W' }, 543 { NFLUSHINPROG, 'P' }, 544 { NMODIFIED, 'M' }, 545 { NWRITEERR, 'E' }, 546 { NQNFSNONCACHE, 'X' }, 547 { NQNFSWRITE, 'O' }, 548 { NQNFSEVICTED, 'G' }, 549 { NACC, 'A' }, 550 { NUPD, 'U' }, 551 { NCHG, 'C' }, 552 { 0, '\0' }, 553 }; 554 555 void 556 nfs_header() 557 { 558 559 (void)printf(" FILEID NFLAG RDEV|SZ"); 560 } 561 562 int 563 nfs_print(vp, ovflw) 564 struct vnode *vp; 565 int ovflw; 566 { 567 struct nfsnode nfsnode, *np = &nfsnode; 568 char flags[sizeof(nfs_flags) / sizeof(nfs_flags[0])]; 569 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 570 struct vattr va; 571 char *name; 572 mode_t type; 573 574 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 575 (void)getflags(nfs_flags, flags, np->n_flag); 576 577 KGETRET(np->n_vattr, &va, sizeof(va), "vnode attr"); 578 PRWORD(ovflw, " %*ld", 7, 1, (long)va.va_fileid); 579 PRWORD(ovflw, " %*s", 6, 1, flags); 580 switch (va.va_type) { 581 case VCHR: 582 type = S_IFCHR; 583 goto device; 584 585 case VBLK: 586 type = S_IFBLK; 587 device: 588 if (usenumflag || (name = devname(va.va_rdev, type)) == NULL) { 589 (void)snprintf(dev, sizeof(dev), "%d,%d", 590 major(va.va_rdev), minor(va.va_rdev)); 591 name = dev; 592 } 593 PRWORD(ovflw, " %*s", 8, 1, name); 594 break; 595 default: 596 PRWORD(ovflw, " %*lld", 8, 1, (long long)np->n_size); 597 break; 598 } 599 return (0); 600 } 601 602 void 603 layer_header() 604 { 605 606 (void)printf(" %*s", PTRSTRWIDTH, "LOWER"); 607 } 608 609 int 610 layer_print(vp, ovflw) 611 struct vnode *vp; 612 int ovflw; 613 { 614 struct layer_node lnode, *lp = &lnode; 615 616 KGETRET(VTOLAYER(vp), &lnode, sizeof(lnode), "layer vnode"); 617 618 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)lp->layer_lowervp); 619 return (0); 620 } 621 622 void 623 union_header() 624 { 625 626 (void)printf(" %*s %*s", PTRSTRWIDTH, "UPPER", PTRSTRWIDTH, "LOWER"); 627 } 628 629 int 630 union_print(vp, ovflw) 631 struct vnode *vp; 632 int ovflw; 633 { 634 struct union_node unode, *up = &unode; 635 636 KGETRET(VTOUNION(vp), &unode, sizeof(unode), "vnode's unode"); 637 638 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)up->un_uppervp); 639 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)up->un_lowervp); 640 return (0); 641 } 642 643 /* 644 * Given a pointer to a mount structure in kernel space, 645 * read it in and return a usable pointer to it. 646 */ 647 struct mount * 648 getmnt(maddr) 649 struct mount *maddr; 650 { 651 static struct mtab { 652 struct mtab *next; 653 struct mount *maddr; 654 struct mount mount; 655 } *mhead = NULL; 656 struct mtab *mt; 657 658 for (mt = mhead; mt != NULL; mt = mt->next) 659 if (maddr == mt->maddr) 660 return (&mt->mount); 661 if ((mt = malloc(sizeof(struct mtab))) == NULL) 662 err(1, "malloc"); 663 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 664 mt->maddr = maddr; 665 mt->next = mhead; 666 mhead = mt; 667 return (&mt->mount); 668 } 669 670 void 671 mount_print(mp) 672 struct mount *mp; 673 { 674 int flags; 675 676 (void)printf("*** MOUNT %s %s on %s", ST.f_fstypename, 677 ST.f_mntfromname, ST.f_mntonname); 678 if ((flags = mp->mnt_flag) != 0) { 679 int i; 680 const char *sep = " ("; 681 682 for (i = 0; i <= sizeof mnt_flags / sizeof mnt_flags[0]; i++) { 683 if (flags & mnt_flags[i].m_flag) { 684 (void)printf("%s%s", sep, mnt_flags[i].m_name); 685 flags &= ~mnt_flags[i].m_flag; 686 sep = ","; 687 } 688 } 689 if (flags) 690 (void)printf("%sunknown_flags:%x", sep, flags); 691 (void)printf(")"); 692 } 693 (void)printf("\n"); 694 } 695 696 char * 697 loadvnodes(avnodes) 698 int *avnodes; 699 { 700 int mib[2]; 701 size_t copysize; 702 char *vnodebase; 703 704 if (memf != NULL) { 705 /* 706 * do it by hand 707 */ 708 return (kinfo_vnodes(avnodes)); 709 } 710 mib[0] = CTL_KERN; 711 mib[1] = KERN_VNODE; 712 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 713 err(1, "sysctl: KERN_VNODE"); 714 if ((vnodebase = malloc(copysize)) == NULL) 715 err(1, "malloc"); 716 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 717 err(1, "sysctl: KERN_VNODE"); 718 if (copysize % (VPTRSZ + VNODESZ)) 719 errx(1, "vnode size mismatch"); 720 *avnodes = copysize / (VPTRSZ + VNODESZ); 721 722 return (vnodebase); 723 } 724 725 /* 726 * simulate what a running kernel does in in kinfo_vnode 727 */ 728 char * 729 kinfo_vnodes(avnodes) 730 int *avnodes; 731 { 732 struct mntlist mountlist; 733 struct mount *mp, mount; 734 struct vnode *vp, vnode; 735 char *beg, *bp, *ep; 736 int numvnodes; 737 738 KGET(V_NUMV, numvnodes); 739 if ((bp = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 740 err(1, "malloc"); 741 beg = bp; 742 ep = bp + (numvnodes + 20) * (VPTRSZ + VNODESZ); 743 KGET(V_MOUNTLIST, mountlist); 744 for (mp = mountlist.cqh_first;; 745 mp = mount.mnt_list.cqe_next) { 746 KGET2(mp, &mount, sizeof(mount), "mount entry"); 747 for (vp = mount.mnt_vnodelist.lh_first; 748 vp != NULL; vp = vnode.v_mntvnodes.le_next) { 749 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 750 if (bp + VPTRSZ + VNODESZ > ep) 751 /* XXX - should realloc */ 752 errx(1, "no more room for vnodes"); 753 memmove(bp, &vp, VPTRSZ); 754 bp += VPTRSZ; 755 memmove(bp, &vnode, VNODESZ); 756 bp += VNODESZ; 757 } 758 if (mp == mountlist.cqh_last) 759 break; 760 } 761 *avnodes = (bp - beg) / (VPTRSZ + VNODESZ); 762 return (beg); 763 } 764 765 void 766 ttymode() 767 { 768 int ntty; 769 struct ttylist_head tty_head; 770 struct tty *tp, tty; 771 772 KGET(TTY_NTTY, ntty); 773 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 774 KGET(TTY_TTYLIST, tty_head); 775 (void)printf( 776 " LINE RAW CAN OUT HWT LWT COL STATE %-*s PGID DISC\n", 777 PTRSTRWIDTH, "SESS"); 778 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 779 KGET2(tp, &tty, sizeof tty, "tty struct"); 780 ttyprt(&tty); 781 } 782 } 783 784 static const struct flagbit_desc ttystates[] = { 785 { TS_ISOPEN, 'O'}, 786 { TS_DIALOUT, '>'}, 787 { TS_CARR_ON, 'C'}, 788 { TS_TIMEOUT, 'T'}, 789 { TS_FLUSH, 'F'}, 790 { TS_BUSY, 'B'}, 791 { TS_ASLEEP, 'A'}, 792 { TS_XCLUDE, 'X'}, 793 { TS_TTSTOP, 'S'}, 794 { TS_TBLOCK, 'K'}, 795 { TS_ASYNC, 'Y'}, 796 { TS_BKSL, 'D'}, 797 { TS_ERASE, 'E'}, 798 { TS_LNCH, 'L'}, 799 { TS_TYPEN, 'P'}, 800 { TS_CNTTB, 'N'}, 801 { 0, '\0'}, 802 }; 803 804 void 805 ttyprt(tp) 806 struct tty *tp; 807 { 808 char state[sizeof(ttystates) / sizeof(ttystates[0]) + 1]; 809 char dev[2 + 3 + 1 + 5 + 1]; /* 12bit major + 20bit minor */ 810 struct linesw t_linesw; 811 char *name, buffer; 812 pid_t pgid; 813 int n, ovflw; 814 815 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) { 816 (void)snprintf(dev, sizeof(dev), "0x%3x:%x", 817 major(tp->t_dev), minor(tp->t_dev)); 818 name = dev; 819 } 820 ovflw = 0; 821 PRWORD(ovflw, "%-*s", 7, 0, name); 822 PRWORD(ovflw, " %*d", 3, 1, tp->t_rawq.c_cc); 823 PRWORD(ovflw, " %*d", 4, 1, tp->t_canq.c_cc); 824 PRWORD(ovflw, " %*d", 4, 1, tp->t_outq.c_cc); 825 PRWORD(ovflw, " %*d", 5, 1, tp->t_hiwat); 826 PRWORD(ovflw, " %*d", 4, 1, tp->t_lowat); 827 PRWORD(ovflw, " %*d", 8, 1, tp->t_column); 828 n = getflags(ttystates, state, tp->t_state); 829 if (tp->t_wopen) { 830 state[n++] = 'W'; 831 state[n] = '\0'; 832 } 833 PRWORD(ovflw, " %-*s", 7, 1, state); 834 PRWORD(ovflw, " %*lX", PTRSTRWIDTH + 1, 1, (u_long)tp->t_session); 835 pgid = 0; 836 if (tp->t_pgrp != NULL) 837 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 838 PRWORD(ovflw, " %*d", 6, 1, pgid); 839 KGET2(tp->t_linesw, &t_linesw, sizeof(t_linesw), 840 "line discipline switch table"); 841 name = t_linesw.l_name; 842 (void)putchar(' '); 843 for (;;) { 844 KGET2(name, &buffer, sizeof(buffer), "line discipline name"); 845 if (buffer == '\0') 846 break; 847 (void)putchar(buffer); 848 name++; 849 } 850 (void)putchar('\n'); 851 } 852 853 static const struct flagbit_desc filemode_flags[] = { 854 { FREAD, 'R' }, 855 { FWRITE, 'W' }, 856 { FAPPEND, 'A' }, 857 #ifdef FSHLOCK /* currently gone */ 858 { FSHLOCK, 'S' }, 859 { FEXLOCK, 'X' }, 860 #endif 861 { FASYNC, 'I' }, 862 { 0, '\0' }, 863 }; 864 865 void 866 filemode() 867 { 868 struct file *fp; 869 struct file *addr; 870 char flags[sizeof(filemode_flags) / sizeof(filemode_flags[0])]; 871 char *buf; 872 int len, maxfile, nfile, ovflw; 873 static const char * const dtypes[] = 874 { "???", "inode", "socket", "pipe" }; 875 876 KGET(FNL_MAXFILE, maxfile); 877 if (totalflag) { 878 KGET(FNL_NFILE, nfile); 879 (void)printf("%3d/%3d files\n", nfile, maxfile); 880 return; 881 } 882 if (getfiles(&buf, &len) == -1) 883 return; 884 /* 885 * Getfiles returns in malloc'd memory a pointer to the first file 886 * structure, and then an array of file structs (whose addresses are 887 * derivable from the previous entry). 888 */ 889 addr = ((struct filelist *)buf)->lh_first; 890 fp = (struct file *)(buf + sizeof(struct filelist)); 891 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 892 893 (void)printf("%d/%d open files\n", nfile, maxfile); 894 (void)printf("%*s%s%*s TYPE FLG CNT MSG %*s%s%*s OFFSET\n", 895 (PTRSTRWIDTH - 4) / 2, "", " LOC", (PTRSTRWIDTH - 4) / 2, "", 896 (PTRSTRWIDTH - 4) / 2, "", "DATA", (PTRSTRWIDTH - 4) / 2, ""); 897 for (; (char *)fp < buf + len; addr = fp->f_list.le_next, fp++) { 898 if ((unsigned)fp->f_type > DTYPE_PIPE) 899 continue; 900 ovflw = 0; 901 (void)getflags(filemode_flags, flags, fp->f_flag); 902 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)addr); 903 PRWORD(ovflw, " %-*s", 9, 1, dtypes[fp->f_type]); 904 PRWORD(ovflw, " %*s", 6, 1, flags); 905 PRWORD(ovflw, " %*d", 5, 1, fp->f_count); 906 PRWORD(ovflw, " %*d", 5, 1, fp->f_msgcount); 907 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 2, (long)fp->f_data); 908 if (fp->f_offset < 0) 909 PRWORD(ovflw, " %-*llx\n", PTRSTRWIDTH + 1, 2, 910 (long long)fp->f_offset); 911 else 912 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 913 (long long)fp->f_offset); 914 } 915 free(buf); 916 } 917 918 int 919 getfiles(abuf, alen) 920 char **abuf; 921 int *alen; 922 { 923 size_t len; 924 int mib[2]; 925 char *buf; 926 927 /* 928 * XXX 929 * Add emulation of KINFO_FILE here. 930 */ 931 if (memf != NULL) 932 errx(1, "files on dead kernel, not implemented"); 933 934 mib[0] = CTL_KERN; 935 mib[1] = KERN_FILE; 936 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 937 warn("sysctl: KERN_FILE"); 938 return (-1); 939 } 940 if ((buf = malloc(len)) == NULL) 941 err(1, "malloc"); 942 if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) { 943 warn("sysctl: KERN_FILE"); 944 return (-1); 945 } 946 *abuf = buf; 947 *alen = len; 948 return (0); 949 } 950 951 void 952 usage() 953 { 954 955 (void)fprintf(stderr, 956 "usage: %s [-T|-f|-s|-t|-v] [-kn] [-M core] [-N system]\n", 957 getprogname()); 958 exit(1); 959 } 960
Indexes created Thu Sep 25 16:09:42 GMT 2025