pstat.c revision 1.114
1 /* $NetBSD: pstat.c,v 1.114 2009/04/18 08:05:18 lukem 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 1.114 2009/04/18 08:05:18 lukem 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", 0, 0, 0, 0 }, /* address of head of mount list. */ 88 #define V_NUMV 1 89 { "_numvnodes", 0, 0, 0, 0 }, 90 #define FNL_NFILE 2 91 { "_nfiles", 0, 0, 0, 0 }, 92 #define FNL_MAXFILE 3 93 { "_maxfiles", 0, 0, 0, 0 }, 94 #define TTY_NTTY 4 95 { "_tty_count", 0, 0, 0, 0 }, 96 #define TTY_TTYLIST 5 97 { "_ttylist", 0, 0, 0, 0 }, 98 #define NLMANDATORY TTY_TTYLIST /* names up to here are mandatory */ 99 { "", 0, 0, 0, 0 } 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 const char *type; 404 char flags[sizeof(vnode_flags) / sizeof(vnode_flags[0])]; 405 int ovflw; 406 407 /* 408 * set type 409 */ 410 switch (vp->v_type) { 411 case VNON: 412 type = "non"; break; 413 case VREG: 414 type = "reg"; break; 415 case VDIR: 416 type = "dir"; break; 417 case VBLK: 418 type = "blk"; break; 419 case VCHR: 420 type = "chr"; break; 421 case VLNK: 422 type = "lnk"; break; 423 case VSOCK: 424 type = "soc"; break; 425 case VFIFO: 426 type = "fif"; break; 427 case VBAD: 428 type = "bad"; break; 429 default: 430 type = "unk"; break; 431 } 432 /* 433 * gather flags 434 */ 435 (void)getflags(vnode_flags, flags, 436 vp->v_uflag | vp->v_iflag | vp->v_vflag); 437 438 ovflw = 0; 439 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)avnode); 440 PRWORD(ovflw, " %*s", 4, 1, type); 441 PRWORD(ovflw, " %*s", 6, 1, flags); 442 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_usecount); 443 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_holdcnt); 444 PRWORD(ovflw, " %*d", 4, 1, vp->v_tag); 445 PRWORD(ovflw, " %*d", 6, 1, vp->v_uobj.uo_npages); 446 return (ovflw); 447 } 448 449 const struct flagbit_desc ufs_flags[] = { 450 { IN_ACCESS, 'A' }, 451 { IN_CHANGE, 'C' }, 452 { IN_UPDATE, 'U' }, 453 { IN_MODIFIED, 'M' }, 454 { IN_ACCESSED, 'a' }, 455 { IN_RENAME, 'R' }, 456 { IN_SHLOCK, 'S' }, 457 { IN_EXLOCK, 'E' }, 458 { IN_CLEANING, 'c' }, 459 { IN_ADIROP, 'D' }, 460 { IN_SPACECOUNTED, 's' }, 461 { 0, '\0' }, 462 }; 463 464 void 465 ufs_header(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 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 480 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 481 char *name; 482 mode_t type; 483 dev_t rdev; 484 485 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 486 KGETRET(ip->i_din.ffs1_din, &dip, sizeof (struct ufs1_dinode), 487 "inode's dinode"); 488 489 if (ip->i_size == dip.dp1.di_size) 490 rdev = dip.dp1.di_rdev; 491 else { 492 KGETRET(ip->i_din.ffs1_din, &dip, sizeof (struct ufs2_dinode), 493 "inode's UFS2 dinode"); 494 rdev = dip.dp2.di_rdev; 495 } 496 497 /* 498 * XXX need to to locking state. 499 */ 500 501 (void)getflags(ufs_flags, flags, ip->i_flag); 502 PRWORD(ovflw, " %*llu", 7, 1, (unsigned long long)ip->i_number); 503 PRWORD(ovflw, " %*s", 6, 1, flags); 504 type = ip->i_mode & S_IFMT; 505 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) { 506 if (usenumflag || 507 (name = devname(rdev, type)) == NULL) { 508 devprintf(dev, sizeof(dev), 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(struct vnode *vp, int ovflw) 519 { 520 struct inode inode, *ip = &inode; 521 struct ext2fs_dinode dip; 522 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 523 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 524 char *name; 525 mode_t type; 526 527 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 528 KGETRET(ip->i_din.e2fs_din, &dip, sizeof (struct ext2fs_dinode), 529 "inode's dinode"); 530 531 /* 532 * XXX need to to locking state. 533 */ 534 535 (void)getflags(ufs_flags, flags, ip->i_flag); 536 PRWORD(ovflw, " %*llu", 7, 1, (unsigned long long)ip->i_number); 537 PRWORD(ovflw, " %*s", 6, 1, flags); 538 type = dip.e2di_mode & S_IFMT; 539 if (S_ISCHR(dip.e2di_mode) || S_ISBLK(dip.e2di_mode)) { 540 if (usenumflag || 541 (name = devname(dip.e2di_rdev, type)) == NULL) { 542 devprintf(dev, sizeof(dev), dip.e2di_rdev); 543 name = dev; 544 } 545 PRWORD(ovflw, " %*s", 8, 1, name); 546 } else 547 PRWORD(ovflw, " %*u", 8, 1, (u_int)dip.e2di_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 { NACC, 'A' }, 557 { NUPD, 'U' }, 558 { NCHG, 'C' }, 559 { 0, '\0' }, 560 }; 561 562 void 563 nfs_header(void) 564 { 565 566 (void)printf(" FILEID NFLAG RDEV|SZ"); 567 } 568 569 int 570 nfs_print(struct vnode *vp, int ovflw) 571 { 572 struct nfsnode nfsnode, *np = &nfsnode; 573 char flags[sizeof(nfs_flags) / sizeof(nfs_flags[0])]; 574 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 575 struct vattr va; 576 char *name; 577 mode_t type; 578 579 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 580 (void)getflags(nfs_flags, flags, np->n_flag); 581 582 KGETRET(np->n_vattr, &va, sizeof(va), "vnode attr"); 583 PRWORD(ovflw, " %*ld", 7, 1, (long)va.va_fileid); 584 PRWORD(ovflw, " %*s", 6, 1, flags); 585 switch (va.va_type) { 586 case VCHR: 587 type = S_IFCHR; 588 goto device; 589 590 case VBLK: 591 type = S_IFBLK; 592 device: 593 if (usenumflag || (name = devname(va.va_rdev, type)) == NULL) { 594 devprintf(dev, sizeof(dev), va.va_rdev); 595 name = dev; 596 } 597 PRWORD(ovflw, " %*s", 8, 1, name); 598 break; 599 default: 600 PRWORD(ovflw, " %*lld", 8, 1, (long long)np->n_size); 601 break; 602 } 603 return (0); 604 } 605 606 void 607 layer_header(void) 608 { 609 610 (void)printf(" %*s", PTRSTRWIDTH, "LOWER"); 611 } 612 613 int 614 layer_print(struct vnode *vp, int ovflw) 615 { 616 struct layer_node lnode, *lp = &lnode; 617 618 KGETRET(VTOLAYER(vp), &lnode, sizeof(lnode), "layer vnode"); 619 620 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)lp->layer_lowervp); 621 return (0); 622 } 623 624 /* 625 * Given a pointer to a mount structure in kernel space, 626 * read it in and return a usable pointer to it. 627 */ 628 struct mount * 629 getmnt(struct mount *maddr) 630 { 631 static struct mtab { 632 struct mtab *next; 633 struct mount *maddr; 634 struct mount mount; 635 } *mhead = NULL; 636 struct mtab *mt; 637 struct mount mb; 638 639 for (mt = mhead; mt != NULL; mt = mt->next) 640 if (maddr == mt->maddr) 641 return (&mt->mount); 642 KGETRET(maddr, &mb, sizeof(struct mount), "mount table"); 643 if ((mt = malloc(sizeof(struct mtab))) == NULL) 644 err(1, "malloc"); 645 mt->mount = mb; 646 mt->maddr = maddr; 647 mt->next = mhead; 648 mhead = mt; 649 return (&mt->mount); 650 } 651 652 void 653 mount_print(struct mount *mp) 654 { 655 int flags; 656 657 (void)printf("*** MOUNT %s %s on %s", ST.f_fstypename, 658 ST.f_mntfromname, ST.f_mntonname); 659 if ((flags = mp->mnt_flag) != 0) { 660 size_t i; 661 const char *sep = " ("; 662 663 for (i = 0; i < sizeof mnt_flags / sizeof mnt_flags[0]; i++) { 664 if (flags & mnt_flags[i].m_flag) { 665 (void)printf("%s%s", sep, mnt_flags[i].m_name); 666 flags &= ~mnt_flags[i].m_flag; 667 sep = ","; 668 } 669 } 670 if (flags) 671 (void)printf("%sunknown_flags:%x", sep, flags); 672 (void)printf(")"); 673 } 674 (void)printf("\n"); 675 } 676 677 char * 678 loadvnodes(int *avnodes) 679 { 680 int mib[2]; 681 size_t copysize; 682 char *vnodebase; 683 684 if (totalflag) { 685 KGET(V_NUMV, *avnodes); 686 return NULL; 687 } 688 if (memf != NULL) { 689 /* 690 * do it by hand 691 */ 692 return (kinfo_vnodes(avnodes)); 693 } 694 mib[0] = CTL_KERN; 695 mib[1] = KERN_VNODE; 696 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 697 err(1, "sysctl: KERN_VNODE"); 698 if ((vnodebase = malloc(copysize)) == NULL) 699 err(1, "malloc"); 700 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 701 err(1, "sysctl: KERN_VNODE"); 702 if (copysize % (VPTRSZ + VNODESZ)) 703 errx(1, "vnode size mismatch"); 704 *avnodes = copysize / (VPTRSZ + VNODESZ); 705 706 return (vnodebase); 707 } 708 709 /* 710 * simulate what a running kernel does in in kinfo_vnode 711 */ 712 char * 713 kinfo_vnodes(int *avnodes) 714 { 715 struct mntlist mlist; 716 struct mount *mp, mount; 717 struct vnode *vp, vnode; 718 char *beg, *bp, *ep; 719 int numvnodes; 720 721 KGET(V_NUMV, numvnodes); 722 if ((bp = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 723 err(1, "malloc"); 724 beg = bp; 725 ep = bp + (numvnodes + 20) * (VPTRSZ + VNODESZ); 726 KGET(V_MOUNTLIST, mlist); 727 for (mp = mlist.cqh_first;; 728 mp = mount.mnt_list.cqe_next) { 729 KGET2(mp, &mount, sizeof(mount), "mount entry"); 730 TAILQ_FOREACH(vp, &mount.mnt_vnodelist, v_mntvnodes) { 731 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 732 if (bp + VPTRSZ + VNODESZ > ep) 733 /* XXX - should realloc */ 734 errx(1, "no more room for vnodes"); 735 memmove(bp, &vp, VPTRSZ); 736 bp += VPTRSZ; 737 memmove(bp, &vnode, VNODESZ); 738 bp += VNODESZ; 739 } 740 if (mp == mlist.cqh_last) 741 break; 742 } 743 *avnodes = (bp - beg) / (VPTRSZ + VNODESZ); 744 return (beg); 745 } 746 747 void 748 ttymode(void) 749 { 750 int ntty; 751 struct ttylist_head tty_head; 752 struct tty *tp, tty; 753 754 KGET(TTY_NTTY, ntty); 755 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 756 KGET(TTY_TTYLIST, tty_head); 757 (void)printf( 758 " LINE RAW CAN OUT HWT LWT COL STATE %-*s PGID DISC\n", 759 PTRSTRWIDTH, "SESS"); 760 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 761 KGET2(tp, &tty, sizeof tty, "tty struct"); 762 ttyprt(&tty); 763 } 764 } 765 766 static const struct flagbit_desc ttystates[] = { 767 { TS_ISOPEN, 'O'}, 768 { TS_DIALOUT, '>'}, 769 { TS_CARR_ON, 'C'}, 770 { TS_TIMEOUT, 'T'}, 771 { TS_FLUSH, 'F'}, 772 { TS_BUSY, 'B'}, 773 { TS_XCLUDE, 'X'}, 774 { TS_TTSTOP, 'S'}, 775 { TS_TBLOCK, 'K'}, 776 { TS_ASYNC, 'Y'}, 777 { TS_BKSL, 'D'}, 778 { TS_ERASE, 'E'}, 779 { TS_LNCH, 'L'}, 780 { TS_TYPEN, 'P'}, 781 { TS_CNTTB, 'N'}, 782 { 0, '\0'}, 783 }; 784 785 void 786 ttyprt(struct tty *tp) 787 { 788 char state[sizeof(ttystates) / sizeof(ttystates[0]) + 1]; 789 char dev[2 + 3 + 1 + 5 + 1]; /* 12bit major + 20bit minor */ 790 struct linesw t_linesw; 791 const char *name; 792 char buffer; 793 pid_t pgid; 794 int n, ovflw; 795 796 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) { 797 devprintf(dev, sizeof(dev), tp->t_dev); 798 name = dev; 799 } 800 ovflw = 0; 801 PRWORD(ovflw, "%-*s", 7, 0, name); 802 PRWORD(ovflw, " %*d", 3, 1, tp->t_rawq.c_cc); 803 PRWORD(ovflw, " %*d", 4, 1, tp->t_canq.c_cc); 804 PRWORD(ovflw, " %*d", 4, 1, tp->t_outq.c_cc); 805 PRWORD(ovflw, " %*d", 5, 1, tp->t_hiwat); 806 PRWORD(ovflw, " %*d", 4, 1, tp->t_lowat); 807 PRWORD(ovflw, " %*d", 8, 1, tp->t_column); 808 n = getflags(ttystates, state, tp->t_state); 809 if (tp->t_wopen) { 810 state[n++] = 'W'; 811 state[n] = '\0'; 812 } 813 PRWORD(ovflw, " %-*s", 7, 1, state); 814 PRWORD(ovflw, " %*lX", PTRSTRWIDTH + 1, 1, (u_long)tp->t_session); 815 pgid = 0; 816 if (tp->t_pgrp != NULL) 817 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 818 PRWORD(ovflw, " %*d", 6, 1, pgid); 819 KGET2(tp->t_linesw, &t_linesw, sizeof(t_linesw), 820 "line discipline switch table"); 821 name = t_linesw.l_name; 822 (void)putchar(' '); 823 for (;;) { 824 KGET2(name, &buffer, sizeof(buffer), "line discipline name"); 825 if (buffer == '\0') 826 break; 827 (void)putchar(buffer); 828 name++; 829 } 830 (void)putchar('\n'); 831 } 832 833 static const struct flagbit_desc filemode_flags[] = { 834 { FREAD, 'R' }, 835 { FWRITE, 'W' }, 836 { FAPPEND, 'A' }, 837 #ifdef FSHLOCK /* currently gone */ 838 { FSHLOCK, 'S' }, 839 { FEXLOCK, 'X' }, 840 #endif 841 { FASYNC, 'I' }, 842 { 0, '\0' }, 843 }; 844 845 void 846 filemode(void) 847 { 848 struct kinfo_file *ki; 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 to an array of kinfo_file2 863 * structures. 864 */ 865 nfile = len / sizeof(struct kinfo_file); 866 867 (void)printf("%d/%d open files\n", nfile, maxfile); 868 (void)printf("%*s%s%*s TYPE FLG CNT MSG %*s%s%*s IFLG OFFSET\n", 869 (PTRSTRWIDTH - 4) / 2, "", " LOC", (PTRSTRWIDTH - 4) / 2, "", 870 (PTRSTRWIDTH - 4) / 2, "", "DATA", (PTRSTRWIDTH - 4) / 2, ""); 871 for (ki = (struct kinfo_file *)offset; nfile--; ki++) { 872 if ((unsigned)ki->ki_ftype >= sizeof(dtypes) / sizeof(dtypes[0])) 873 continue; 874 ovflw = 0; 875 (void)getflags(filemode_flags, flags, ki->ki_flag); 876 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)ki->ki_fileaddr); 877 PRWORD(ovflw, " %-*s", 9, 1, dtypes[ki->ki_ftype]); 878 PRWORD(ovflw, " %*s", 6, 1, flags); 879 PRWORD(ovflw, " %*d", 5, 1, ki->ki_count); 880 PRWORD(ovflw, " %*d", 5, 1, ki->ki_msgcount); 881 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 2, (long)ki->ki_fdata); 882 PRWORD(ovflw, " %*x", 5, 1, 0); 883 if ((off_t)ki->ki_foffset < 0) 884 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 885 (long long)ki->ki_foffset); 886 else 887 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 888 (long long)ki->ki_foffset); 889 } 890 free(buf); 891 } 892 893 int 894 getfiles(char **abuf, int *alen, char **aoffset) 895 { 896 size_t len; 897 int mib[6]; 898 char *buf; 899 size_t offset; 900 901 /* 902 * XXX 903 * Add emulation of KINFO_FILE here. 904 */ 905 if (memf != NULL) 906 errx(1, "files on dead kernel, not implemented"); 907 908 mib[0] = CTL_KERN; 909 mib[1] = KERN_FILE2; 910 mib[2] = KERN_FILE_BYFILE; 911 mib[3] = 0; 912 mib[4] = sizeof(struct kinfo_file); 913 mib[5] = 0; 914 if (sysctl(mib, 6, NULL, &len, NULL, 0) == -1) { 915 warn("sysctl: KERN_FILE2"); 916 return (-1); 917 } 918 /* We need to align (struct kinfo_file *) in the buffer. */ 919 offset = len % sizeof(off_t); 920 mib[5] = len / sizeof(struct kinfo_file); 921 if ((buf = malloc(len + offset)) == NULL) 922 err(1, "malloc"); 923 if (sysctl(mib, 6, buf + offset, &len, NULL, 0) == -1) { 924 warn("sysctl: 2nd KERN_FILE2"); 925 return (-1); 926 } 927 *abuf = buf; 928 *alen = len; 929 *aoffset = (buf + offset); 930 return (0); 931 } 932 933 void 934 usage(void) 935 { 936 937 (void)fprintf(stderr, 938 "usage: %s [-T|-f|-s|-t|-v] [-ghkmn] [-M core] [-N system]\n", 939 getprogname()); 940 exit(1); 941 } 942
Indexes created Fri Sep 26 08:10:20 GMT 2025