1 /* $NetBSD: pstat.c,v 1.112 2009/03/08 12:52:08 ad 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\ 35 The Regents of the University of California. All rights reserved."); 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 1.112 2009/03/08 12:52:08 ad Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #define _KERNEL 47 #include <sys/types.h> 48 #undef _KERNEL 49 #include <sys/param.h> 50 #include <sys/time.h> 51 #include <sys/vnode.h> 52 #include <sys/ucred.h> 53 #include <stdbool.h> 54 #define _KERNEL 55 #include <sys/file.h> 56 #include <ufs/ufs/inode.h> 57 #define NFS 58 #include <sys/mount.h> 59 #undef NFS 60 #include <sys/uio.h> 61 #include <miscfs/genfs/layer.h> 62 #undef _KERNEL 63 #include <sys/stat.h> 64 #include <nfs/nfsproto.h> 65 #include <nfs/rpcv2.h> 66 #include <nfs/nfs.h> 67 #include <nfs/nfsnode.h> 68 #include <sys/ioctl.h> 69 #include <sys/tty.h> 70 #include <sys/conf.h> 71 72 #include <sys/sysctl.h> 73 74 #include <err.h> 75 #include <kvm.h> 76 #include <limits.h> 77 #include <nlist.h> 78 #include <stdio.h> 79 #include <stdlib.h> 80 #include <string.h> 81 #include <unistd.h> 82 83 #include "swapctl.h" 84 85 struct nlist nl[] = { 86 #define V_MOUNTLIST 0 87 { "_mountlist" }, /* address of head of mount list. */ 88 #define V_NUMV 1 89 { "_numvnodes" }, 90 #define FNL_NFILE 2 91 { "_nfiles" }, 92 #define FNL_MAXFILE 3 93 { "_maxfiles" }, 94 #define TTY_NTTY 4 95 { "_tty_count" }, 96 #define TTY_TTYLIST 5 97 { "_ttylist" }, 98 #define NLMANDATORY TTY_TTYLIST /* names up to here are mandatory */ 99 { "" } 100 }; 101 102 int usenumflag; 103 int totalflag; 104 int kflag; 105 int hflag; 106 char *nlistf = NULL; 107 char *memf = NULL; 108 kvm_t *kd; 109 110 static const char * const dtypes[] = { DTYPE_NAMES }; 111 112 113 static const struct { 114 u_int m_flag; 115 u_int m_visible; 116 const char *m_name; 117 } mnt_flags[] = { 118 __MNT_FLAGS 119 }; 120 121 struct flagbit_desc { 122 u_int fd_flags; 123 char fd_mark; 124 }; 125 126 #define SVAR(var) __STRING(var) /* to force expansion */ 127 #define KGET(idx, var) \ 128 KGET1(idx, &var, sizeof(var), SVAR(var)) 129 #define KGET1(idx, p, s, msg) \ 130 KGET2(nl[idx].n_value, p, s, msg) 131 #define KGET2(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 } while (/* CONSTCOND */0) 135 #define KGETRET(addr, p, s, msg) do { \ 136 if (kvm_read(kd, (u_long)(addr), p, s) != s) { \ 137 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 138 return (0); \ 139 } \ 140 } while (/* CONSTCOND */0) 141 142 #if 1 /* This is copied from vmstat/vmstat.c */ 143 /* 144 * Print single word. `ovflow' is number of characters didn't fit 145 * on the last word. `fmt' is a format string to print this word. 146 * It must contain asterisk for field width. `width' is a width 147 * occupied by this word. `fixed' is a number of constant chars in 148 * `fmt'. `val' is a value to be printed using format string `fmt'. 149 */ 150 #define PRWORD(ovflw, fmt, width, fixed, val) do { \ 151 (ovflw) += printf((fmt), \ 152 (width) - (fixed) - (ovflw) > 0 ? \ 153 (width) - (fixed) - (ovflw) : 0, \ 154 (val)) - (width); \ 155 if ((ovflw) < 0) \ 156 (ovflw) = 0; \ 157 } while (/* CONSTCOND */0) 158 #endif 159 160 void filemode(void); 161 int getfiles(char **, int *, char **); 162 int getflags(const struct flagbit_desc *, char *, u_int); 163 struct mount * 164 getmnt(struct mount *); 165 char * kinfo_vnodes(int *); 166 void layer_header(void); 167 int layer_print(struct vnode *, int); 168 char * loadvnodes(int *); 169 int main(int, char **); 170 void mount_print(struct mount *); 171 void nfs_header(void); 172 int nfs_print(struct vnode *, int); 173 void ttymode(void); 174 void ttyprt(struct tty *); 175 void ufs_header(void); 176 int ufs_print(struct vnode *, int); 177 int ext2fs_print(struct vnode *, int); 178 void usage(void); 179 void vnode_header(void); 180 int vnode_print(struct vnode *, struct vnode *); 181 void vnodemode(void); 182 183 int 184 main(int argc, char *argv[]) 185 { 186 int ch, i, quit, ret, use_sysctl; 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 use_sysctl = (nlistf == NULL && memf == NULL); 250 251 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0) 252 errx(1, "kvm_openfiles: %s", buf); 253 254 /* get rid of it now anyway */ 255 if (nlistf == NULL && memf == NULL) 256 (void)setgid(getgid()); 257 if ((ret = kvm_nlist(kd, nl)) != 0) { 258 if (ret == -1) 259 errx(1, "kvm_nlist: %s", kvm_geterr(kd)); 260 for (i = quit = 0; i <= NLMANDATORY; i++) 261 if (!nl[i].n_value) { 262 quit = 1; 263 warnx("undefined symbol: %s", nl[i].n_name); 264 } 265 if (quit) 266 exit(1); 267 } 268 if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag)) 269 usage(); 270 if (fileflag || totalflag) 271 filemode(); 272 if (vnodeflag || totalflag) 273 vnodemode(); 274 if (ttyflag) 275 ttymode(); 276 if (swapflag || totalflag) 277 if (use_sysctl) 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 static void 289 devprintf(char *buf, size_t buflen, dev_t dev) 290 { 291 (void)snprintf(buf, buflen, "%llu,%llu", 292 (unsigned long long)major(dev), 293 (unsigned long long)minor(dev)); 294 } 295 296 void 297 vnodemode(void) 298 { 299 char *e_vnodebase, *endvnode, *evp; 300 struct vnode *vp; 301 struct mount *maddr, *mp; 302 int numvnodes, ovflw; 303 int (*vnode_fsprint) (struct vnode *, int); /* per-fs data printer */ 304 305 mp = NULL; 306 e_vnodebase = loadvnodes(&numvnodes); 307 if (totalflag) { 308 (void)printf("%7d vnodes\n", numvnodes); 309 goto out; 310 } 311 endvnode = e_vnodebase + numvnodes * (VPTRSZ + VNODESZ); 312 (void)printf("%d active vnodes\n", numvnodes); 313 314 #define ST mp->mnt_stat 315 #define FSTYPE_IS(mp, name) \ 316 (strncmp((mp)->mnt_stat.f_fstypename, (name), \ 317 sizeof((mp)->mnt_stat.f_fstypename)) == 0) 318 maddr = NULL; 319 vnode_fsprint = NULL; 320 for (evp = e_vnodebase; evp < endvnode; evp += VPTRSZ + VNODESZ) { 321 vp = (struct vnode *)(evp + VPTRSZ); 322 if (vp->v_mount != maddr) { 323 /* 324 * New filesystem 325 */ 326 if ((mp = getmnt(vp->v_mount)) == NULL) 327 continue; 328 maddr = vp->v_mount; 329 mount_print(mp); 330 vnode_header(); 331 if (FSTYPE_IS(mp, MOUNT_FFS) || 332 FSTYPE_IS(mp, MOUNT_MFS)) { 333 ufs_header(); 334 vnode_fsprint = ufs_print; 335 } else if (FSTYPE_IS(mp, MOUNT_NFS)) { 336 nfs_header(); 337 vnode_fsprint = nfs_print; 338 } else if (FSTYPE_IS(mp, MOUNT_EXT2FS)) { 339 ufs_header(); 340 vnode_fsprint = ext2fs_print; 341 } else if (FSTYPE_IS(mp, MOUNT_NULL) || 342 FSTYPE_IS(mp, MOUNT_OVERLAY) || 343 FSTYPE_IS(mp, MOUNT_UMAP)) { 344 layer_header(); 345 vnode_fsprint = layer_print; 346 } else 347 vnode_fsprint = NULL; 348 (void)printf("\n"); 349 } 350 ovflw = vnode_print(*(struct vnode **)evp, vp); 351 if (VTOI(vp) != NULL && vnode_fsprint != NULL) 352 (*vnode_fsprint)(vp, ovflw); 353 (void)printf("\n"); 354 } 355 356 out: 357 if (e_vnodebase) 358 free(e_vnodebase); 359 } 360 361 int 362 getflags(const struct flagbit_desc *fd, char *p, u_int flags) 363 { 364 char *q = p; 365 366 if (flags == 0) { 367 *p++ = '-'; 368 *p = '\0'; 369 return (0); 370 } 371 372 for (; fd->fd_flags != 0; fd++) 373 if ((flags & fd->fd_flags) != 0) 374 *p++ = fd->fd_mark; 375 *p = '\0'; 376 return (p - q); 377 } 378 379 const struct flagbit_desc vnode_flags[] = { 380 { VV_ROOT, 'R' }, 381 { VI_TEXT, 'T' }, 382 { VV_SYSTEM, 'S' }, 383 { VV_ISTTY, 'I' }, 384 { VI_EXECMAP, 'E' }, 385 { VI_XLOCK, 'L' }, 386 { VU_DIROP, 'D' }, 387 { VI_LAYER, 'Y' }, 388 { VI_ONWORKLST, 'O' }, 389 { 0, '\0' }, 390 }; 391 392 void 393 vnode_header(void) 394 { 395 396 (void)printf("%-*s TYP VFLAG USE HOLD TAG NPAGE", 397 PTRSTRWIDTH, "ADDR"); 398 } 399 400 int 401 vnode_print(struct vnode *avnode, struct vnode *vp) 402 { 403 char *type, flags[sizeof(vnode_flags) / sizeof(vnode_flags[0])]; 404 int ovflw; 405 406 /* 407 * set type 408 */ 409 switch (vp->v_type) { 410 case VNON: 411 type = "non"; break; 412 case VREG: 413 type = "reg"; break; 414 case VDIR: 415 type = "dir"; break; 416 case VBLK: 417 type = "blk"; break; 418 case VCHR: 419 type = "chr"; break; 420 case VLNK: 421 type = "lnk"; break; 422 case VSOCK: 423 type = "soc"; break; 424 case VFIFO: 425 type = "fif"; break; 426 case VBAD: 427 type = "bad"; break; 428 default: 429 type = "unk"; break; 430 } 431 /* 432 * gather flags 433 */ 434 (void)getflags(vnode_flags, flags, 435 vp->v_uflag | vp->v_iflag | vp->v_vflag); 436 437 ovflw = 0; 438 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)avnode); 439 PRWORD(ovflw, " %*s", 4, 1, type); 440 PRWORD(ovflw, " %*s", 6, 1, flags); 441 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_usecount); 442 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_holdcnt); 443 PRWORD(ovflw, " %*d", 4, 1, vp->v_tag); 444 PRWORD(ovflw, " %*d", 6, 1, vp->v_uobj.uo_npages); 445 return (ovflw); 446 } 447 448 const struct flagbit_desc ufs_flags[] = { 449 { IN_ACCESS, 'A' }, 450 { IN_CHANGE, 'C' }, 451 { IN_UPDATE, 'U' }, 452 { IN_MODIFIED, 'M' }, 453 { IN_ACCESSED, 'a' }, 454 { IN_RENAME, 'R' }, 455 { IN_SHLOCK, 'S' }, 456 { IN_EXLOCK, 'E' }, 457 { IN_CLEANING, 'c' }, 458 { IN_ADIROP, 'D' }, 459 { IN_SPACECOUNTED, 's' }, 460 { 0, '\0' }, 461 }; 462 463 void 464 ufs_header(void) 465 { 466 467 (void)printf(" FILEID IFLAG RDEV|SZ"); 468 } 469 470 int 471 ufs_print(struct vnode *vp, 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, " %*llu", 7, 1, (unsigned long long)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 devprintf(dev, sizeof(dev), rdev); 508 name = dev; 509 } 510 PRWORD(ovflw, " %*s", 8, 1, name); 511 } else 512 PRWORD(ovflw, " %*lld", 8, 1, (long long)ip->i_size); 513 return 0; 514 } 515 516 int 517 ext2fs_print(struct vnode *vp, int ovflw) 518 { 519 struct inode inode, *ip = &inode; 520 struct ext2fs_dinode dip; 521 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 522 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 523 char *name; 524 mode_t type; 525 526 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 527 KGETRET(ip->i_din.e2fs_din, &dip, sizeof (struct ext2fs_dinode), 528 "inode's dinode"); 529 530 /* 531 * XXX need to to locking state. 532 */ 533 534 (void)getflags(ufs_flags, flags, ip->i_flag); 535 PRWORD(ovflw, " %*llu", 7, 1, (unsigned long long)ip->i_number); 536 PRWORD(ovflw, " %*s", 6, 1, flags); 537 type = dip.e2di_mode & S_IFMT; 538 if (S_ISCHR(dip.e2di_mode) || S_ISBLK(dip.e2di_mode)) { 539 if (usenumflag || 540 (name = devname(dip.e2di_rdev, type)) == NULL) { 541 devprintf(dev, sizeof(dev), dip.e2di_rdev); 542 name = dev; 543 } 544 PRWORD(ovflw, " %*s", 8, 1, name); 545 } else 546 PRWORD(ovflw, " %*u", 8, 1, (u_int)dip.e2di_size); 547 return (0); 548 } 549 550 const struct flagbit_desc nfs_flags[] = { 551 { NFLUSHWANT, 'W' }, 552 { NFLUSHINPROG, 'P' }, 553 { NMODIFIED, 'M' }, 554 { NWRITEERR, 'E' }, 555 { NACC, 'A' }, 556 { NUPD, 'U' }, 557 { NCHG, 'C' }, 558 { 0, '\0' }, 559 }; 560 561 void 562 nfs_header(void) 563 { 564 565 (void)printf(" FILEID NFLAG RDEV|SZ"); 566 } 567 568 int 569 nfs_print(struct vnode *vp, 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 devprintf(dev, sizeof(dev), va.va_rdev); 594 name = dev; 595 } 596 PRWORD(ovflw, " %*s", 8, 1, name); 597 break; 598 default: 599 PRWORD(ovflw, " %*lld", 8, 1, (long long)np->n_size); 600 break; 601 } 602 return (0); 603 } 604 605 void 606 layer_header(void) 607 { 608 609 (void)printf(" %*s", PTRSTRWIDTH, "LOWER"); 610 } 611 612 int 613 layer_print(struct vnode *vp, int ovflw) 614 { 615 struct layer_node lnode, *lp = &lnode; 616 617 KGETRET(VTOLAYER(vp), &lnode, sizeof(lnode), "layer vnode"); 618 619 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)lp->layer_lowervp); 620 return (0); 621 } 622 623 /* 624 * Given a pointer to a mount structure in kernel space, 625 * read it in and return a usable pointer to it. 626 */ 627 struct mount * 628 getmnt(struct mount *maddr) 629 { 630 static struct mtab { 631 struct mtab *next; 632 struct mount *maddr; 633 struct mount mount; 634 } *mhead = NULL; 635 struct mtab *mt; 636 struct mount mb; 637 638 for (mt = mhead; mt != NULL; mt = mt->next) 639 if (maddr == mt->maddr) 640 return (&mt->mount); 641 KGETRET(maddr, &mb, sizeof(struct mount), "mount table"); 642 if ((mt = malloc(sizeof(struct mtab))) == NULL) 643 err(1, "malloc"); 644 mt->mount = mb; 645 mt->maddr = maddr; 646 mt->next = mhead; 647 mhead = mt; 648 return (&mt->mount); 649 } 650 651 void 652 mount_print(struct mount *mp) 653 { 654 int flags; 655 656 (void)printf("*** MOUNT %s %s on %s", ST.f_fstypename, 657 ST.f_mntfromname, ST.f_mntonname); 658 if ((flags = mp->mnt_flag) != 0) { 659 int i; 660 const char *sep = " ("; 661 662 for (i = 0; i < sizeof mnt_flags / sizeof mnt_flags[0]; i++) { 663 if (flags & mnt_flags[i].m_flag) { 664 (void)printf("%s%s", sep, mnt_flags[i].m_name); 665 flags &= ~mnt_flags[i].m_flag; 666 sep = ","; 667 } 668 } 669 if (flags) 670 (void)printf("%sunknown_flags:%x", sep, flags); 671 (void)printf(")"); 672 } 673 (void)printf("\n"); 674 } 675 676 char * 677 loadvnodes(int *avnodes) 678 { 679 int mib[2]; 680 size_t copysize; 681 char *vnodebase; 682 683 if (totalflag) { 684 KGET(V_NUMV, *avnodes); 685 return NULL; 686 } 687 if (memf != NULL) { 688 /* 689 * do it by hand 690 */ 691 return (kinfo_vnodes(avnodes)); 692 } 693 mib[0] = CTL_KERN; 694 mib[1] = KERN_VNODE; 695 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 696 err(1, "sysctl: KERN_VNODE"); 697 if ((vnodebase = malloc(copysize)) == NULL) 698 err(1, "malloc"); 699 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 700 err(1, "sysctl: KERN_VNODE"); 701 if (copysize % (VPTRSZ + VNODESZ)) 702 errx(1, "vnode size mismatch"); 703 *avnodes = copysize / (VPTRSZ + VNODESZ); 704 705 return (vnodebase); 706 } 707 708 /* 709 * simulate what a running kernel does in in kinfo_vnode 710 */ 711 char * 712 kinfo_vnodes(int *avnodes) 713 { 714 struct mntlist mountlist; 715 struct mount *mp, mount; 716 struct vnode *vp, vnode; 717 char *beg, *bp, *ep; 718 int numvnodes; 719 720 KGET(V_NUMV, numvnodes); 721 if ((bp = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 722 err(1, "malloc"); 723 beg = bp; 724 ep = bp + (numvnodes + 20) * (VPTRSZ + VNODESZ); 725 KGET(V_MOUNTLIST, mountlist); 726 for (mp = mountlist.cqh_first;; 727 mp = mount.mnt_list.cqe_next) { 728 KGET2(mp, &mount, sizeof(mount), "mount entry"); 729 TAILQ_FOREACH(vp, &mount.mnt_vnodelist, v_mntvnodes) { 730 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 731 if (bp + VPTRSZ + VNODESZ > ep) 732 /* XXX - should realloc */ 733 errx(1, "no more room for vnodes"); 734 memmove(bp, &vp, VPTRSZ); 735 bp += VPTRSZ; 736 memmove(bp, &vnode, VNODESZ); 737 bp += VNODESZ; 738 } 739 if (mp == mountlist.cqh_last) 740 break; 741 } 742 *avnodes = (bp - beg) / (VPTRSZ + VNODESZ); 743 return (beg); 744 } 745 746 void 747 ttymode(void) 748 { 749 int ntty; 750 struct ttylist_head tty_head; 751 struct tty *tp, tty; 752 753 KGET(TTY_NTTY, ntty); 754 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 755 KGET(TTY_TTYLIST, tty_head); 756 (void)printf( 757 " LINE RAW CAN OUT HWT LWT COL STATE %-*s PGID DISC\n", 758 PTRSTRWIDTH, "SESS"); 759 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 760 KGET2(tp, &tty, sizeof tty, "tty struct"); 761 ttyprt(&tty); 762 } 763 } 764 765 static const struct flagbit_desc ttystates[] = { 766 { TS_ISOPEN, 'O'}, 767 { TS_DIALOUT, '>'}, 768 { TS_CARR_ON, 'C'}, 769 { TS_TIMEOUT, 'T'}, 770 { TS_FLUSH, 'F'}, 771 { TS_BUSY, 'B'}, 772 { TS_XCLUDE, 'X'}, 773 { TS_TTSTOP, 'S'}, 774 { TS_TBLOCK, 'K'}, 775 { TS_ASYNC, 'Y'}, 776 { TS_BKSL, 'D'}, 777 { TS_ERASE, 'E'}, 778 { TS_LNCH, 'L'}, 779 { TS_TYPEN, 'P'}, 780 { TS_CNTTB, 'N'}, 781 { 0, '\0'}, 782 }; 783 784 void 785 ttyprt(struct tty *tp) 786 { 787 char state[sizeof(ttystates) / sizeof(ttystates[0]) + 1]; 788 char dev[2 + 3 + 1 + 5 + 1]; /* 12bit major + 20bit minor */ 789 struct linesw t_linesw; 790 const char *name; 791 char buffer; 792 pid_t pgid; 793 int n, ovflw; 794 795 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) { 796 devprintf(dev, sizeof(dev), tp->t_dev); 797 name = dev; 798 } 799 ovflw = 0; 800 PRWORD(ovflw, "%-*s", 7, 0, name); 801 PRWORD(ovflw, " %*d", 3, 1, tp->t_rawq.c_cc); 802 PRWORD(ovflw, " %*d", 4, 1, tp->t_canq.c_cc); 803 PRWORD(ovflw, " %*d", 4, 1, tp->t_outq.c_cc); 804 PRWORD(ovflw, " %*d", 5, 1, tp->t_hiwat); 805 PRWORD(ovflw, " %*d", 4, 1, tp->t_lowat); 806 PRWORD(ovflw, " %*d", 8, 1, tp->t_column); 807 n = getflags(ttystates, state, tp->t_state); 808 if (tp->t_wopen) { 809 state[n++] = 'W'; 810 state[n] = '\0'; 811 } 812 PRWORD(ovflw, " %-*s", 7, 1, state); 813 PRWORD(ovflw, " %*lX", PTRSTRWIDTH + 1, 1, (u_long)tp->t_session); 814 pgid = 0; 815 if (tp->t_pgrp != NULL) 816 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 817 PRWORD(ovflw, " %*d", 6, 1, pgid); 818 KGET2(tp->t_linesw, &t_linesw, sizeof(t_linesw), 819 "line discipline switch table"); 820 name = t_linesw.l_name; 821 (void)putchar(' '); 822 for (;;) { 823 KGET2(name, &buffer, sizeof(buffer), "line discipline name"); 824 if (buffer == '\0') 825 break; 826 (void)putchar(buffer); 827 name++; 828 } 829 (void)putchar('\n'); 830 } 831 832 static const struct flagbit_desc filemode_flags[] = { 833 { FREAD, 'R' }, 834 { FWRITE, 'W' }, 835 { FAPPEND, 'A' }, 836 #ifdef FSHLOCK /* currently gone */ 837 { FSHLOCK, 'S' }, 838 { FEXLOCK, 'X' }, 839 #endif 840 { FASYNC, 'I' }, 841 { 0, '\0' }, 842 }; 843 844 void 845 filemode(void) 846 { 847 struct file *fp; 848 struct file *addr; 849 char flags[sizeof(filemode_flags) / sizeof(filemode_flags[0])]; 850 char *buf, *offset; 851 int len, maxfile, nfile, ovflw; 852 853 KGET(FNL_MAXFILE, maxfile); 854 if (totalflag) { 855 KGET(FNL_NFILE, nfile); 856 (void)printf("%3d/%3d files\n", nfile, maxfile); 857 return; 858 } 859 if (getfiles(&buf, &len, &offset) == -1) 860 return; 861 /* 862 * Getfiles returns in malloc'd memory a pointer to the first file 863 * structure, and then an array of file structs (whose addresses are 864 * derivable from the previous entry). 865 */ 866 addr = ((struct filelist *)offset)->lh_first; 867 fp = (struct file *)(offset + sizeof(struct filelist)); 868 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 869 870 (void)printf("%d/%d open files\n", nfile, maxfile); 871 (void)printf("%*s%s%*s TYPE FLG CNT MSG %*s%s%*s IFLG OFFSET\n", 872 (PTRSTRWIDTH - 4) / 2, "", " LOC", (PTRSTRWIDTH - 4) / 2, "", 873 (PTRSTRWIDTH - 4) / 2, "", "DATA", (PTRSTRWIDTH - 4) / 2, ""); 874 for (; (char *)fp < offset + len; addr = fp->f_list.le_next, fp++) { 875 if ((unsigned)fp->f_type >= sizeof(dtypes) / sizeof(dtypes[0])) 876 continue; 877 ovflw = 0; 878 (void)getflags(filemode_flags, flags, fp->f_flag); 879 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)addr); 880 PRWORD(ovflw, " %-*s", 9, 1, dtypes[fp->f_type]); 881 PRWORD(ovflw, " %*s", 6, 1, flags); 882 PRWORD(ovflw, " %*d", 5, 1, fp->f_count); 883 PRWORD(ovflw, " %*d", 5, 1, fp->f_msgcount); 884 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 2, (long)fp->f_data); 885 PRWORD(ovflw, " %*x", 5, 1, 0); 886 if (fp->f_offset < 0) 887 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 888 (long long)fp->f_offset); 889 else 890 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 891 (long long)fp->f_offset); 892 } 893 free(buf); 894 } 895 896 int 897 getfiles(char **abuf, int *alen, char **aoffset) 898 { 899 size_t len; 900 int mib[2]; 901 char *buf; 902 size_t offset; 903 904 /* 905 * XXX 906 * Add emulation of KINFO_FILE here. 907 */ 908 if (memf != NULL) 909 errx(1, "files on dead kernel, not implemented"); 910 911 mib[0] = CTL_KERN; 912 mib[1] = KERN_FILE; 913 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 914 warn("sysctl: KERN_FILE"); 915 return (-1); 916 } 917 /* We need to align (struct file *) in the buffer. */ 918 offset = len % sizeof(off_t); 919 if ((buf = malloc(len + offset)) == NULL) 920 err(1, "malloc"); 921 if (sysctl(mib, 2, buf + offset, &len, NULL, 0) == -1) { 922 warn("sysctl: KERN_FILE"); 923 return (-1); 924 } 925 *abuf = buf; 926 *alen = len; 927 *aoffset = (buf + offset); 928 return (0); 929 } 930 931 void 932 usage(void) 933 { 934 935 (void)fprintf(stderr, 936 "usage: %s [-T|-f|-s|-t|-v] [-ghkmn] [-M core] [-N system]\n", 937 getprogname()); 938 exit(1); 939 } 940