1 /* $NetBSD: pstat.c,v 1.119 2012/06/04 20:13:47 riastradh 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 1.119 2012/06/04 20:13:47 riastradh 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 #define NFS 56 #include <sys/mount.h> 57 #undef NFS 58 #include <sys/file.h> 59 #include <ufs/ufs/inode.h> 60 #include <ufs/ufs/ufsmount.h> 61 #include <sys/uio.h> 62 #include <miscfs/genfs/layer.h> 63 #undef _KERNEL 64 #include <sys/stat.h> 65 #include <nfs/nfsproto.h> 66 #include <nfs/rpcv2.h> 67 #include <nfs/nfs.h> 68 #include <nfs/nfsnode.h> 69 #include <sys/ioctl.h> 70 #include <sys/tty.h> 71 #include <sys/conf.h> 72 73 #include <sys/sysctl.h> 74 75 #include <err.h> 76 #include <kvm.h> 77 #include <limits.h> 78 #include <nlist.h> 79 #include <stdio.h> 80 #include <stdlib.h> 81 #include <string.h> 82 #include <unistd.h> 83 84 #include "swapctl.h" 85 86 struct nlist nl[] = { 87 #define V_MOUNTLIST 0 88 { "_mountlist", 0, 0, 0, 0 }, /* address of head of mount list. */ 89 #define V_NUMV 1 90 { "_numvnodes", 0, 0, 0, 0 }, 91 #define FNL_NFILE 2 92 { "_nfiles", 0, 0, 0, 0 }, 93 #define FNL_MAXFILE 3 94 { "_maxfiles", 0, 0, 0, 0 }, 95 #define TTY_NTTY 4 96 { "_tty_count", 0, 0, 0, 0 }, 97 #define TTY_TTYLIST 5 98 { "_ttylist", 0, 0, 0, 0 }, 99 #define NLMANDATORY TTY_TTYLIST /* names up to here are mandatory */ 100 { "", 0, 0, 0, 0 } 101 }; 102 103 int usenumflag; 104 int totalflag; 105 int kflag; 106 int hflag; 107 char *nlistf = NULL; 108 char *memf = NULL; 109 kvm_t *kd; 110 111 static const char * const dtypes[] = { DTYPE_NAMES }; 112 113 114 static const struct { 115 u_int m_flag; 116 u_int m_visible; 117 const char *m_name; 118 } mnt_flags[] = { 119 __MNT_FLAGS 120 }; 121 122 struct flagbit_desc { 123 u_int fd_flags; 124 char fd_mark; 125 }; 126 127 #define SVAR(var) __STRING(var) /* to force expansion */ 128 #define KGET(idx, var) \ 129 KGET1(idx, &var, sizeof(var), SVAR(var)) 130 #define KGET1(idx, p, s, msg) \ 131 KGET2(nl[idx].n_value, p, s, msg) 132 #define KGET2(addr, p, s, msg) do { \ 133 if (kvm_read(kd, (u_long)(addr), p, s) != s) \ 134 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 135 } while (/* CONSTCOND */0) 136 #define KGETRET(addr, p, s, msg) do { \ 137 if (kvm_read(kd, (u_long)(addr), p, s) != s) { \ 138 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 139 return (0); \ 140 } \ 141 } while (/* CONSTCOND */0) 142 143 #if 1 /* This is copied from vmstat/vmstat.c */ 144 /* 145 * Print single word. `ovflow' is number of characters didn't fit 146 * on the last word. `fmt' is a format string to print this word. 147 * It must contain asterisk for field width. `width' is a width 148 * occupied by this word. `fixed' is a number of constant chars in 149 * `fmt'. `val' is a value to be printed using format string `fmt'. 150 */ 151 #define PRWORD(ovflw, fmt, width, fixed, val) do { \ 152 (ovflw) += printf((fmt), \ 153 (width) - (fixed) - (ovflw) > 0 ? \ 154 (width) - (fixed) - (ovflw) : 0, \ 155 (val)) - (width); \ 156 if ((ovflw) < 0) \ 157 (ovflw) = 0; \ 158 } while (/* CONSTCOND */0) 159 #endif 160 161 void filemode(void); 162 int getfiles(char **, int *, char **); 163 int getflags(const struct flagbit_desc *, char *, u_int); 164 struct mount * 165 getmnt(struct mount *); 166 char * kinfo_vnodes(int *); 167 void layer_header(void); 168 int layer_print(struct vnode *, int); 169 char * loadvnodes(int *); 170 int main(int, char **); 171 void mount_print(struct mount *); 172 void nfs_header(void); 173 int nfs_print(struct vnode *, int); 174 void ttymode(void); 175 void ttyprt(struct tty *); 176 void ufs_header(void); 177 int ufs_print(struct vnode *, int); 178 int ext2fs_print(struct vnode *, int); 179 __dead void usage(void); 180 void vnode_header(void); 181 int vnode_print(struct vnode *, struct vnode *); 182 void vnodemode(void); 183 184 int 185 main(int argc, char *argv[]) 186 { 187 int ch, i, quit, ret, use_sysctl; 188 int fileflag, swapflag, ttyflag, vnodeflag; 189 gid_t egid = getegid(); 190 char buf[_POSIX2_LINE_MAX]; 191 192 setegid(getgid()); 193 fileflag = swapflag = ttyflag = vnodeflag = 0; 194 while ((ch = getopt(argc, argv, "TM:N:fghikmnstv")) != -1) 195 switch (ch) { 196 case 'f': 197 fileflag = 1; 198 break; 199 case 'M': 200 memf = optarg; 201 break; 202 case 'N': 203 nlistf = optarg; 204 break; 205 case 'n': 206 usenumflag = 1; 207 break; 208 case 's': 209 swapflag = 1; 210 break; 211 case 'T': 212 totalflag = 1; 213 break; 214 case 't': 215 ttyflag = 1; 216 break; 217 case 'k': 218 kflag = 1; 219 break; 220 case 'g': 221 kflag = 3; /* 1k ^ 3 */ 222 break; 223 case 'h': 224 hflag = 1; 225 break; 226 case 'm': 227 kflag = 2; /* 1k ^ 2 */ 228 break; 229 case 'v': 230 case 'i': /* Backward compatibility. */ 231 vnodeflag = 1; 232 break; 233 default: 234 usage(); 235 } 236 argc -= optind; 237 argv += optind; 238 239 /* 240 * Discard setgid privileges. If not the running kernel, we toss 241 * them away totally so that bad guys can't print interesting stuff 242 * from kernel memory, otherwise switch back to kmem for the 243 * duration of the kvm_openfiles() call. 244 */ 245 if (nlistf != NULL || memf != NULL) 246 (void)setgid(getgid()); 247 else 248 (void)setegid(egid); 249 250 use_sysctl = (nlistf == NULL && memf == NULL); 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 if (use_sysctl) 279 list_swap(0, kflag, 0, totalflag, 1, hflag); 280 exit(0); 281 } 282 283 #define VPTRSZ sizeof(struct vnode *) 284 #define VNODESZ sizeof(struct vnode) 285 #define PTRSTRWIDTH ((int)sizeof(void *) * 2) /* Width of resulting string 286 when pointer is printed 287 in hexadecimal. */ 288 289 static void 290 devprintf(char *buf, size_t buflen, dev_t dev) 291 { 292 (void)snprintf(buf, buflen, "%llu,%llu", 293 (unsigned long long)major(dev), 294 (unsigned long long)minor(dev)); 295 } 296 297 void 298 vnodemode(void) 299 { 300 char *e_vnodebase, *endvnode, *evp; 301 struct vnode *vp; 302 struct mount *maddr, *mp; 303 int numvnodes, ovflw; 304 int (*vnode_fsprint) (struct vnode *, int); /* per-fs data printer */ 305 306 mp = NULL; 307 e_vnodebase = loadvnodes(&numvnodes); 308 if (totalflag) { 309 (void)printf("%7d vnodes\n", numvnodes); 310 goto out; 311 } 312 endvnode = e_vnodebase + numvnodes * (VPTRSZ + VNODESZ); 313 (void)printf("%d active vnodes\n", numvnodes); 314 315 #define ST mp->mnt_stat 316 #define FSTYPE_IS(mp, name) \ 317 (strncmp((mp)->mnt_stat.f_fstypename, (name), \ 318 sizeof((mp)->mnt_stat.f_fstypename)) == 0) 319 maddr = NULL; 320 vnode_fsprint = NULL; 321 for (evp = e_vnodebase; evp < endvnode; evp += VPTRSZ + VNODESZ) { 322 vp = (struct vnode *)(evp + VPTRSZ); 323 if (vp->v_mount != maddr) { 324 /* 325 * New filesystem 326 */ 327 if ((mp = getmnt(vp->v_mount)) == NULL) 328 continue; 329 maddr = vp->v_mount; 330 mount_print(mp); 331 vnode_header(); 332 if (FSTYPE_IS(mp, MOUNT_FFS) || 333 FSTYPE_IS(mp, MOUNT_MFS)) { 334 ufs_header(); 335 vnode_fsprint = ufs_print; 336 } else if (FSTYPE_IS(mp, MOUNT_NFS)) { 337 nfs_header(); 338 vnode_fsprint = nfs_print; 339 } else if (FSTYPE_IS(mp, MOUNT_EXT2FS)) { 340 ufs_header(); 341 vnode_fsprint = ext2fs_print; 342 } else if (FSTYPE_IS(mp, MOUNT_NULL) || 343 FSTYPE_IS(mp, MOUNT_OVERLAY) || 344 FSTYPE_IS(mp, MOUNT_UMAP)) { 345 layer_header(); 346 vnode_fsprint = layer_print; 347 } else 348 vnode_fsprint = NULL; 349 (void)printf("\n"); 350 } 351 ovflw = vnode_print(*(struct vnode **)evp, vp); 352 if (VTOI(vp) != NULL && vnode_fsprint != NULL) 353 (*vnode_fsprint)(vp, ovflw); 354 (void)printf("\n"); 355 } 356 357 out: 358 if (e_vnodebase) 359 free(e_vnodebase); 360 } 361 362 int 363 getflags(const struct flagbit_desc *fd, char *p, u_int flags) 364 { 365 char *q = p; 366 367 if (flags == 0) { 368 *p++ = '-'; 369 *p = '\0'; 370 return (0); 371 } 372 373 for (; fd->fd_flags != 0; fd++) 374 if ((flags & fd->fd_flags) != 0) 375 *p++ = fd->fd_mark; 376 *p = '\0'; 377 return (p - q); 378 } 379 380 const struct flagbit_desc vnode_flags[] = { 381 { VV_ROOT, 'R' }, 382 { VI_TEXT, 'T' }, 383 { VV_SYSTEM, 'S' }, 384 { VV_ISTTY, 'I' }, 385 { VI_EXECMAP, 'E' }, 386 { VI_XLOCK, 'L' }, 387 { VU_DIROP, 'D' }, 388 { VI_LAYER, 'Y' }, 389 { VI_ONWORKLST, 'O' }, 390 { 0, '\0' }, 391 }; 392 393 void 394 vnode_header(void) 395 { 396 397 (void)printf("%-*s TYP VFLAG USE HOLD TAG NPAGE", 398 PTRSTRWIDTH, "ADDR"); 399 } 400 401 int 402 vnode_print(struct vnode *avnode, struct vnode *vp) 403 { 404 const char *type; 405 char 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, 437 vp->v_uflag | vp->v_iflag | vp->v_vflag); 438 439 ovflw = 0; 440 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)avnode); 441 PRWORD(ovflw, " %*s", 4, 1, type); 442 PRWORD(ovflw, " %*s", 6, 1, flags); 443 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_usecount); 444 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_holdcnt); 445 PRWORD(ovflw, " %*d", 4, 1, vp->v_tag); 446 PRWORD(ovflw, " %*d", 6, 1, vp->v_uobj.uo_npages); 447 return (ovflw); 448 } 449 450 const struct flagbit_desc ufs_flags[] = { 451 { IN_ACCESS, 'A' }, 452 { IN_CHANGE, 'C' }, 453 { IN_UPDATE, 'U' }, 454 { IN_MODIFIED, 'M' }, 455 { IN_ACCESSED, 'a' }, 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(void) 466 { 467 468 (void)printf(" FILEID IFLAG RDEV|SZ"); 469 } 470 471 int 472 ufs_print(struct vnode *vp, int ovflw) 473 { 474 struct inode inode, *ip = &inode; 475 union dinode { 476 struct ufs1_dinode dp1; 477 struct ufs2_dinode dp2; 478 } dip; 479 struct ufsmount ump; 480 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 481 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 482 char *name; 483 mode_t type; 484 dev_t rdev; 485 486 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 487 KGETRET(ip->i_ump, &ump, sizeof(struct ufsmount), 488 "vnode's mount point"); 489 490 if (ump.um_fstype == UFS1) { 491 KGETRET(ip->i_din.ffs1_din, &dip, sizeof (struct ufs1_dinode), 492 "inode's dinode"); 493 rdev = (uint32_t)dip.dp1.di_rdev; 494 } else { 495 KGETRET(ip->i_din.ffs2_din, &dip, sizeof (struct ufs2_dinode), 496 "inode's UFS2 dinode"); 497 rdev = dip.dp2.di_rdev; 498 } 499 500 /* 501 * XXX need to to locking state. 502 */ 503 504 (void)getflags(ufs_flags, flags, ip->i_flag); 505 PRWORD(ovflw, " %*llu", 7, 1, (unsigned long long)ip->i_number); 506 PRWORD(ovflw, " %*s", 6, 1, flags); 507 type = ip->i_mode & S_IFMT; 508 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) { 509 if (usenumflag || 510 (name = devname(rdev, type)) == NULL) { 511 devprintf(dev, sizeof(dev), 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(struct vnode *vp, int ovflw) 522 { 523 struct inode inode, *ip = &inode; 524 struct ext2fs_dinode dip; 525 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 526 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 527 char *name; 528 mode_t type; 529 530 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 531 KGETRET(ip->i_din.e2fs_din, &dip, sizeof (struct ext2fs_dinode), 532 "inode's dinode"); 533 534 /* 535 * XXX need to to locking state. 536 */ 537 538 (void)getflags(ufs_flags, flags, ip->i_flag); 539 PRWORD(ovflw, " %*llu", 7, 1, (unsigned long long)ip->i_number); 540 PRWORD(ovflw, " %*s", 6, 1, flags); 541 type = dip.e2di_mode & S_IFMT; 542 if (S_ISCHR(dip.e2di_mode) || S_ISBLK(dip.e2di_mode)) { 543 if (usenumflag || 544 (name = devname(dip.e2di_rdev, type)) == NULL) { 545 devprintf(dev, sizeof(dev), dip.e2di_rdev); 546 name = dev; 547 } 548 PRWORD(ovflw, " %*s", 8, 1, name); 549 } else 550 PRWORD(ovflw, " %*u", 8, 1, (u_int)dip.e2di_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 { NACC, 'A' }, 560 { NUPD, 'U' }, 561 { NCHG, 'C' }, 562 { 0, '\0' }, 563 }; 564 565 void 566 nfs_header(void) 567 { 568 569 (void)printf(" FILEID NFLAG RDEV|SZ"); 570 } 571 572 int 573 nfs_print(struct vnode *vp, int ovflw) 574 { 575 struct nfsnode nfsnode, *np = &nfsnode; 576 char flags[sizeof(nfs_flags) / sizeof(nfs_flags[0])]; 577 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 578 struct vattr va; 579 char *name; 580 mode_t type; 581 582 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 583 (void)getflags(nfs_flags, flags, np->n_flag); 584 585 KGETRET(np->n_vattr, &va, sizeof(va), "vnode attr"); 586 PRWORD(ovflw, " %*ld", 7, 1, (long)va.va_fileid); 587 PRWORD(ovflw, " %*s", 6, 1, flags); 588 switch (va.va_type) { 589 case VCHR: 590 type = S_IFCHR; 591 goto device; 592 593 case VBLK: 594 type = S_IFBLK; 595 device: 596 if (usenumflag || (name = devname(va.va_rdev, type)) == NULL) { 597 devprintf(dev, sizeof(dev), va.va_rdev); 598 name = dev; 599 } 600 PRWORD(ovflw, " %*s", 8, 1, name); 601 break; 602 default: 603 PRWORD(ovflw, " %*lld", 8, 1, (long long)np->n_size); 604 break; 605 } 606 return (0); 607 } 608 609 void 610 layer_header(void) 611 { 612 613 (void)printf(" %*s", PTRSTRWIDTH, "LOWER"); 614 } 615 616 int 617 layer_print(struct vnode *vp, int ovflw) 618 { 619 struct layer_node lnode, *lp = &lnode; 620 621 KGETRET(VTOLAYER(vp), &lnode, sizeof(lnode), "layer vnode"); 622 623 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)lp->layer_lowervp); 624 return (0); 625 } 626 627 /* 628 * Given a pointer to a mount structure in kernel space, 629 * read it in and return a usable pointer to it. 630 */ 631 struct mount * 632 getmnt(struct mount *maddr) 633 { 634 static struct mtab { 635 struct mtab *next; 636 struct mount *maddr; 637 struct mount mount; 638 } *mhead = NULL; 639 struct mtab *mt; 640 struct mount mb; 641 642 for (mt = mhead; mt != NULL; mt = mt->next) 643 if (maddr == mt->maddr) 644 return (&mt->mount); 645 KGETRET(maddr, &mb, sizeof(struct mount), "mount table"); 646 if ((mt = malloc(sizeof(struct mtab))) == NULL) 647 err(1, "malloc"); 648 mt->mount = mb; 649 mt->maddr = maddr; 650 mt->next = mhead; 651 mhead = mt; 652 return (&mt->mount); 653 } 654 655 void 656 mount_print(struct mount *mp) 657 { 658 int flags; 659 660 (void)printf("*** MOUNT %s %s on %s", ST.f_fstypename, 661 ST.f_mntfromname, ST.f_mntonname); 662 if ((flags = mp->mnt_flag) != 0) { 663 size_t i; 664 const char *sep = " ("; 665 666 for (i = 0; i < sizeof mnt_flags / sizeof mnt_flags[0]; i++) { 667 if (flags & mnt_flags[i].m_flag) { 668 (void)printf("%s%s", sep, mnt_flags[i].m_name); 669 flags &= ~mnt_flags[i].m_flag; 670 sep = ","; 671 } 672 } 673 if (flags) 674 (void)printf("%sunknown_flags:%x", sep, flags); 675 (void)printf(")"); 676 } 677 (void)printf("\n"); 678 } 679 680 char * 681 loadvnodes(int *avnodes) 682 { 683 int mib[2]; 684 size_t copysize; 685 char *vnodebase; 686 687 if (totalflag) { 688 KGET(V_NUMV, *avnodes); 689 return NULL; 690 } 691 if (memf != NULL) { 692 /* 693 * do it by hand 694 */ 695 return (kinfo_vnodes(avnodes)); 696 } 697 mib[0] = CTL_KERN; 698 mib[1] = KERN_VNODE; 699 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 700 err(1, "sysctl: KERN_VNODE"); 701 if ((vnodebase = malloc(copysize)) == NULL) 702 err(1, "malloc"); 703 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 704 err(1, "sysctl: KERN_VNODE"); 705 if (copysize % (VPTRSZ + VNODESZ)) 706 errx(1, "vnode size mismatch"); 707 *avnodes = copysize / (VPTRSZ + VNODESZ); 708 709 return (vnodebase); 710 } 711 712 /* 713 * simulate what a running kernel does in in kinfo_vnode 714 */ 715 char * 716 kinfo_vnodes(int *avnodes) 717 { 718 struct mntlist mlist; 719 struct mount *mp, mount; 720 struct vnode *vp, vnode; 721 char *beg, *bp, *ep; 722 int numvnodes; 723 724 KGET(V_NUMV, numvnodes); 725 if ((bp = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 726 err(1, "malloc"); 727 beg = bp; 728 ep = bp + (numvnodes + 20) * (VPTRSZ + VNODESZ); 729 KGET(V_MOUNTLIST, mlist); 730 for (mp = mlist.cqh_first;; 731 mp = mount.mnt_list.cqe_next) { 732 KGET2(mp, &mount, sizeof(mount), "mount entry"); 733 TAILQ_FOREACH(vp, &mount.mnt_vnodelist, v_mntvnodes) { 734 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 735 if (bp + VPTRSZ + VNODESZ > ep) 736 /* XXX - should realloc */ 737 errx(1, "no more room for vnodes"); 738 memmove(bp, &vp, VPTRSZ); 739 bp += VPTRSZ; 740 memmove(bp, &vnode, VNODESZ); 741 bp += VNODESZ; 742 } 743 if (mp == mlist.cqh_last) 744 break; 745 } 746 *avnodes = (bp - beg) / (VPTRSZ + VNODESZ); 747 return (beg); 748 } 749 750 void 751 ttymode(void) 752 { 753 int ntty; 754 struct ttylist_head tty_head; 755 struct tty *tp, tty; 756 757 KGET(TTY_NTTY, ntty); 758 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 759 KGET(TTY_TTYLIST, tty_head); 760 (void)printf( 761 " LINE RAW CAN OUT HWT LWT COL STATE %-*s PGID DISC\n", 762 PTRSTRWIDTH, "SESS"); 763 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 764 KGET2(tp, &tty, sizeof tty, "tty struct"); 765 ttyprt(&tty); 766 } 767 } 768 769 static const struct flagbit_desc ttystates[] = { 770 { TS_ISOPEN, 'O'}, 771 { TS_DIALOUT, '>'}, 772 { TS_CARR_ON, 'C'}, 773 { TS_TIMEOUT, 'T'}, 774 { TS_FLUSH, 'F'}, 775 { TS_BUSY, 'B'}, 776 { TS_XCLUDE, 'X'}, 777 { TS_TTSTOP, 'S'}, 778 { TS_TBLOCK, 'K'}, 779 { TS_ASYNC, 'Y'}, 780 { TS_BKSL, 'D'}, 781 { TS_ERASE, 'E'}, 782 { TS_LNCH, 'L'}, 783 { TS_TYPEN, 'P'}, 784 { TS_CNTTB, 'N'}, 785 { 0, '\0'}, 786 }; 787 788 void 789 ttyprt(struct tty *tp) 790 { 791 char state[sizeof(ttystates) / sizeof(ttystates[0]) + 1]; 792 char dev[2 + 3 + 1 + 5 + 1]; /* 12bit major + 20bit minor */ 793 struct linesw t_linesw; 794 const char *name; 795 char buffer; 796 pid_t pgid; 797 int n, ovflw; 798 799 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) { 800 devprintf(dev, sizeof(dev), tp->t_dev); 801 name = dev; 802 } 803 ovflw = 0; 804 PRWORD(ovflw, "%-*s", 7, 0, name); 805 PRWORD(ovflw, " %*d", 3, 1, tp->t_rawq.c_cc); 806 PRWORD(ovflw, " %*d", 4, 1, tp->t_canq.c_cc); 807 PRWORD(ovflw, " %*d", 4, 1, tp->t_outq.c_cc); 808 PRWORD(ovflw, " %*d", 5, 1, tp->t_hiwat); 809 PRWORD(ovflw, " %*d", 4, 1, tp->t_lowat); 810 PRWORD(ovflw, " %*d", 8, 1, tp->t_column); 811 n = getflags(ttystates, state, tp->t_state); 812 if (tp->t_wopen) { 813 state[n++] = 'W'; 814 state[n] = '\0'; 815 } 816 PRWORD(ovflw, " %-*s", 7, 1, state); 817 PRWORD(ovflw, " %*lX", PTRSTRWIDTH + 1, 1, (u_long)tp->t_session); 818 pgid = 0; 819 if (tp->t_pgrp != NULL) 820 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 821 PRWORD(ovflw, " %*d", 6, 1, pgid); 822 KGET2(tp->t_linesw, &t_linesw, sizeof(t_linesw), 823 "line discipline switch table"); 824 name = t_linesw.l_name; 825 (void)putchar(' '); 826 for (;;) { 827 KGET2(name, &buffer, sizeof(buffer), "line discipline name"); 828 if (buffer == '\0') 829 break; 830 (void)putchar(buffer); 831 name++; 832 } 833 (void)putchar('\n'); 834 } 835 836 static const struct flagbit_desc filemode_flags[] = { 837 { FREAD, 'R' }, 838 { FWRITE, 'W' }, 839 { FAPPEND, 'A' }, 840 #ifdef FSHLOCK /* currently gone */ 841 { FSHLOCK, 'S' }, 842 { FEXLOCK, 'X' }, 843 #endif 844 { FASYNC, 'I' }, 845 { 0, '\0' }, 846 }; 847 848 void 849 filemode(void) 850 { 851 struct kinfo_file *ki; 852 char flags[sizeof(filemode_flags) / sizeof(filemode_flags[0])]; 853 char *buf, *offset; 854 int len, maxfile, nfile, ovflw; 855 856 KGET(FNL_MAXFILE, maxfile); 857 if (totalflag) { 858 KGET(FNL_NFILE, nfile); 859 (void)printf("%3d/%3d files\n", nfile, maxfile); 860 return; 861 } 862 if (getfiles(&buf, &len, &offset) == -1) 863 return; 864 /* 865 * Getfiles returns in malloc'd memory to an array of kinfo_file2 866 * structures. 867 */ 868 nfile = len / sizeof(struct kinfo_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 (ki = (struct kinfo_file *)offset; nfile--; ki++) { 875 if ((unsigned)ki->ki_ftype >= sizeof(dtypes) / sizeof(dtypes[0])) 876 continue; 877 ovflw = 0; 878 (void)getflags(filemode_flags, flags, ki->ki_flag); 879 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)ki->ki_fileaddr); 880 PRWORD(ovflw, " %-*s", 9, 1, dtypes[ki->ki_ftype]); 881 PRWORD(ovflw, " %*s", 6, 1, flags); 882 PRWORD(ovflw, " %*d", 5, 1, ki->ki_count); 883 PRWORD(ovflw, " %*d", 5, 1, ki->ki_msgcount); 884 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 2, (long)ki->ki_fdata); 885 PRWORD(ovflw, " %*x", 5, 1, 0); 886 if ((off_t)ki->ki_foffset < 0) 887 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 888 (long long)ki->ki_foffset); 889 else 890 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 891 (long long)ki->ki_foffset); 892 } 893 free(buf); 894 } 895 896 int 897 getfiles(char **abuf, int *alen, char **aoffset) 898 { 899 size_t len; 900 int mib[6]; 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_FILE2; 913 mib[2] = KERN_FILE_BYFILE; 914 mib[3] = 0; 915 mib[4] = sizeof(struct kinfo_file); 916 mib[5] = 0; 917 if (sysctl(mib, 6, NULL, &len, NULL, 0) == -1) { 918 warn("sysctl: KERN_FILE2"); 919 return (-1); 920 } 921 /* We need to align (struct kinfo_file *) in the buffer. */ 922 offset = len % sizeof(off_t); 923 mib[5] = len / sizeof(struct kinfo_file); 924 if ((buf = malloc(len + offset)) == NULL) 925 err(1, "malloc"); 926 if (sysctl(mib, 6, buf + offset, &len, NULL, 0) == -1) { 927 warn("sysctl: 2nd KERN_FILE2"); 928 free(buf); 929 return (-1); 930 } 931 *abuf = buf; 932 *alen = len; 933 *aoffset = (buf + offset); 934 return (0); 935 } 936 937 void 938 usage(void) 939 { 940 941 (void)fprintf(stderr, 942 "usage: %s [-T|-f|-s|-t|-v] [-ghkmn] [-M core] [-N system]\n", 943 getprogname()); 944 exit(1); 945 } 946