pstat.c revision 1.100
1 /* $NetBSD: pstat.c,v 1.100 2007/07/17 21:50:07 christos 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 1.100 2007/07/17 21:50:07 christos 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 #include <stdbool.h> 51 #define _KERNEL 52 #include <sys/file.h> 53 #include <ufs/ufs/inode.h> 54 #define NFS 55 #include <sys/mount.h> 56 #undef NFS 57 #include <sys/uio.h> 58 #include <sys/namei.h> 59 #include <miscfs/genfs/layer.h> 60 #include <miscfs/union/union.h> 61 #undef _KERNEL 62 #include <sys/stat.h> 63 #include <nfs/nfsproto.h> 64 #include <nfs/rpcv2.h> 65 #include <nfs/nfs.h> 66 #include <nfs/nfsnode.h> 67 #include <sys/ioctl.h> 68 #include <sys/tty.h> 69 #include <sys/conf.h> 70 #include <sys/device.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 union_header(void); 179 int union_print(struct vnode *, int); 180 void usage(void); 181 void vnode_header(void); 182 int vnode_print(struct vnode *, struct vnode *); 183 void vnodemode(void); 184 185 int 186 main(int argc, char *argv[]) 187 { 188 int ch, i, quit, ret, use_sysctl; 189 int fileflag, swapflag, ttyflag, vnodeflag; 190 gid_t egid = getegid(); 191 char buf[_POSIX2_LINE_MAX]; 192 193 setegid(getgid()); 194 fileflag = swapflag = ttyflag = vnodeflag = 0; 195 while ((ch = getopt(argc, argv, "TM:N:fghikmnstv")) != -1) 196 switch (ch) { 197 case 'f': 198 fileflag = 1; 199 break; 200 case 'M': 201 memf = optarg; 202 break; 203 case 'N': 204 nlistf = optarg; 205 break; 206 case 'n': 207 usenumflag = 1; 208 break; 209 case 's': 210 swapflag = 1; 211 break; 212 case 'T': 213 totalflag = 1; 214 break; 215 case 't': 216 ttyflag = 1; 217 break; 218 case 'k': 219 kflag = 1; 220 break; 221 case 'g': 222 kflag = 3; /* 1k ^ 3 */ 223 break; 224 case 'h': 225 hflag = 1; 226 break; 227 case 'm': 228 kflag = 2; /* 1k ^ 2 */ 229 break; 230 case 'v': 231 case 'i': /* Backward compatibility. */ 232 vnodeflag = 1; 233 break; 234 default: 235 usage(); 236 } 237 argc -= optind; 238 argv += optind; 239 240 /* 241 * Discard setgid privileges. If not the running kernel, we toss 242 * them away totally so that bad guys can't print interesting stuff 243 * from kernel memory, otherwise switch back to kmem for the 244 * duration of the kvm_openfiles() call. 245 */ 246 if (nlistf != NULL || memf != NULL) 247 (void)setgid(getgid()); 248 else 249 (void)setegid(egid); 250 251 use_sysctl = (nlistf == NULL && memf == NULL); 252 253 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0) 254 errx(1, "kvm_openfiles: %s", buf); 255 256 /* get rid of it now anyway */ 257 if (nlistf == NULL && memf == NULL) 258 (void)setgid(getgid()); 259 if ((ret = kvm_nlist(kd, nl)) != 0) { 260 if (ret == -1) 261 errx(1, "kvm_nlist: %s", kvm_geterr(kd)); 262 for (i = quit = 0; i <= NLMANDATORY; i++) 263 if (!nl[i].n_value) { 264 quit = 1; 265 warnx("undefined symbol: %s", nl[i].n_name); 266 } 267 if (quit) 268 exit(1); 269 } 270 if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag)) 271 usage(); 272 if (fileflag || totalflag) 273 filemode(); 274 if (vnodeflag || totalflag) 275 vnodemode(); 276 if (ttyflag) 277 ttymode(); 278 if (swapflag || totalflag) 279 if (use_sysctl) 280 list_swap(0, kflag, 0, totalflag, 1, hflag); 281 exit(0); 282 } 283 284 #define VPTRSZ sizeof(struct vnode *) 285 #define VNODESZ sizeof(struct vnode) 286 #define PTRSTRWIDTH ((int)sizeof(void *) * 2) /* Width of resulting string 287 when pointer is printed 288 in hexadecimal. */ 289 290 void 291 vnodemode(void) 292 { 293 char *e_vnodebase, *endvnode, *evp; 294 struct vnode *vp; 295 struct mount *maddr, *mp; 296 int numvnodes, ovflw; 297 int (*vnode_fsprint) (struct vnode *, int); /* per-fs data printer */ 298 299 mp = NULL; 300 e_vnodebase = loadvnodes(&numvnodes); 301 if (totalflag) { 302 (void)printf("%7d vnodes\n", numvnodes); 303 goto out; 304 } 305 endvnode = e_vnodebase + numvnodes * (VPTRSZ + VNODESZ); 306 (void)printf("%d active vnodes\n", numvnodes); 307 308 #define ST mp->mnt_stat 309 #define FSTYPE_IS(mp, name) \ 310 (strncmp((mp)->mnt_stat.f_fstypename, (name), \ 311 sizeof((mp)->mnt_stat.f_fstypename)) == 0) 312 maddr = NULL; 313 vnode_fsprint = NULL; 314 for (evp = e_vnodebase; evp < endvnode; evp += VPTRSZ + VNODESZ) { 315 vp = (struct vnode *)(evp + VPTRSZ); 316 if (vp->v_mount != maddr) { 317 /* 318 * New filesystem 319 */ 320 if ((mp = getmnt(vp->v_mount)) == NULL) 321 continue; 322 maddr = vp->v_mount; 323 mount_print(mp); 324 vnode_header(); 325 if (FSTYPE_IS(mp, MOUNT_FFS) || 326 FSTYPE_IS(mp, MOUNT_MFS)) { 327 ufs_header(); 328 vnode_fsprint = ufs_print; 329 } else if (FSTYPE_IS(mp, MOUNT_NFS)) { 330 nfs_header(); 331 vnode_fsprint = nfs_print; 332 } else if (FSTYPE_IS(mp, MOUNT_EXT2FS)) { 333 ufs_header(); 334 vnode_fsprint = ext2fs_print; 335 } else if (FSTYPE_IS(mp, MOUNT_NULL) || 336 FSTYPE_IS(mp, MOUNT_OVERLAY) || 337 FSTYPE_IS(mp, MOUNT_UMAP)) { 338 layer_header(); 339 vnode_fsprint = layer_print; 340 } else if (FSTYPE_IS(mp, MOUNT_UNION)) { 341 union_header(); 342 vnode_fsprint = union_print; 343 } else 344 vnode_fsprint = NULL; 345 (void)printf("\n"); 346 } 347 ovflw = vnode_print(*(struct vnode **)evp, vp); 348 if (VTOI(vp) != NULL && vnode_fsprint != NULL) 349 (*vnode_fsprint)(vp, ovflw); 350 (void)printf("\n"); 351 } 352 353 out: 354 free(e_vnodebase); 355 } 356 357 int 358 getflags(const struct flagbit_desc *fd, char *p, u_int flags) 359 { 360 char *q = p; 361 362 if (flags == 0) { 363 *p++ = '-'; 364 *p = '\0'; 365 return (0); 366 } 367 368 for (; fd->fd_flags != 0; fd++) 369 if ((flags & fd->fd_flags) != 0) 370 *p++ = fd->fd_mark; 371 *p = '\0'; 372 return (p - q); 373 } 374 375 const struct flagbit_desc vnode_flags[] = { 376 { VROOT, 'R' }, 377 { VTEXT, 'T' }, 378 { VSYSTEM, 'S' }, 379 { VISTTY, 'I' }, 380 { VEXECMAP, 'E' }, 381 { VXLOCK, 'L' }, 382 { VXWANT, 'W' }, 383 { VBWAIT, 'B' }, 384 { VALIASED, 'A' }, 385 { VDIROP, 'D' }, 386 { VLAYER, 'Y' }, 387 { VONWORKLST, 'O' }, 388 { 0, '\0' }, 389 }; 390 391 void 392 vnode_header(void) 393 { 394 395 (void)printf("%-*s TYP VFLAG USE HOLD TAG NPAGE", 396 PTRSTRWIDTH, "ADDR"); 397 } 398 399 int 400 vnode_print(struct vnode *avnode, struct vnode *vp) 401 { 402 char *type, flags[sizeof(vnode_flags) / sizeof(vnode_flags[0])]; 403 int ovflw; 404 405 /* 406 * set type 407 */ 408 switch (vp->v_type) { 409 case VNON: 410 type = "non"; break; 411 case VREG: 412 type = "reg"; break; 413 case VDIR: 414 type = "dir"; break; 415 case VBLK: 416 type = "blk"; break; 417 case VCHR: 418 type = "chr"; break; 419 case VLNK: 420 type = "lnk"; break; 421 case VSOCK: 422 type = "soc"; break; 423 case VFIFO: 424 type = "fif"; break; 425 case VBAD: 426 type = "bad"; break; 427 default: 428 type = "unk"; break; 429 } 430 /* 431 * gather flags 432 */ 433 (void)getflags(vnode_flags, flags, vp->v_flag); 434 435 ovflw = 0; 436 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)avnode); 437 PRWORD(ovflw, " %*s", 4, 1, type); 438 PRWORD(ovflw, " %*s", 6, 1, flags); 439 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_usecount); 440 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_holdcnt); 441 PRWORD(ovflw, " %*d", 4, 1, vp->v_tag); 442 PRWORD(ovflw, " %*d", 6, 1, vp->v_uobj.uo_npages); 443 return (ovflw); 444 } 445 446 const struct flagbit_desc ufs_flags[] = { 447 { IN_ACCESS, 'A' }, 448 { IN_CHANGE, 'C' }, 449 { IN_UPDATE, 'U' }, 450 { IN_MODIFIED, 'M' }, 451 { IN_ACCESSED, 'a' }, 452 { IN_RENAME, 'R' }, 453 { IN_SHLOCK, 'S' }, 454 { IN_EXLOCK, 'E' }, 455 { IN_CLEANING, 'c' }, 456 { IN_ADIROP, 'D' }, 457 { IN_SPACECOUNTED, 's' }, 458 { 0, '\0' }, 459 }; 460 461 void 462 ufs_header(void) 463 { 464 465 (void)printf(" FILEID IFLAG RDEV|SZ"); 466 } 467 468 int 469 ufs_print(struct vnode *vp, int ovflw) 470 { 471 struct inode inode, *ip = &inode; 472 union dinode { 473 struct ufs1_dinode dp1; 474 struct ufs2_dinode dp2; 475 } dip; 476 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 477 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 478 char *name; 479 mode_t type; 480 dev_t rdev; 481 482 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 483 KGETRET(ip->i_din.ffs1_din, &dip, sizeof (struct ufs1_dinode), 484 "inode's dinode"); 485 486 if (ip->i_size == dip.dp1.di_size) 487 rdev = dip.dp1.di_rdev; 488 else { 489 KGETRET(ip->i_din.ffs1_din, &dip, sizeof (struct ufs2_dinode), 490 "inode's UFS2 dinode"); 491 rdev = dip.dp2.di_rdev; 492 } 493 494 /* 495 * XXX need to to locking state. 496 */ 497 498 (void)getflags(ufs_flags, flags, ip->i_flag); 499 PRWORD(ovflw, " %*llu", 7, 1, (unsigned long long)ip->i_number); 500 PRWORD(ovflw, " %*s", 6, 1, flags); 501 type = ip->i_mode & S_IFMT; 502 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) { 503 if (usenumflag || 504 (name = devname(rdev, type)) == NULL) { 505 snprintf(dev, sizeof(dev), "%d,%d", 506 major(rdev), minor(rdev)); 507 name = dev; 508 } 509 PRWORD(ovflw, " %*s", 8, 1, name); 510 } else 511 PRWORD(ovflw, " %*lld", 8, 1, (long long)ip->i_size); 512 return 0; 513 } 514 515 int 516 ext2fs_print(struct vnode *vp, int ovflw) 517 { 518 struct inode inode, *ip = &inode; 519 struct ext2fs_dinode dip; 520 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 521 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 522 char *name; 523 mode_t type; 524 525 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 526 KGETRET(ip->i_din.e2fs_din, &dip, sizeof (struct ext2fs_dinode), 527 "inode's dinode"); 528 529 /* 530 * XXX need to to locking state. 531 */ 532 533 (void)getflags(ufs_flags, flags, ip->i_flag); 534 PRWORD(ovflw, " %*llu", 7, 1, (unsigned long long)ip->i_number); 535 PRWORD(ovflw, " %*s", 6, 1, flags); 536 type = dip.e2di_mode & S_IFMT; 537 if (S_ISCHR(dip.e2di_mode) || S_ISBLK(dip.e2di_mode)) { 538 if (usenumflag || 539 (name = devname(dip.e2di_rdev, type)) == NULL) { 540 snprintf(dev, sizeof(dev), "%d,%d", 541 major(dip.e2di_rdev), minor(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 (void)snprintf(dev, sizeof(dev), "%d,%d", 594 major(va.va_rdev), minor(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 void 625 union_header(void) 626 { 627 628 (void)printf(" %*s %*s", PTRSTRWIDTH, "UPPER", PTRSTRWIDTH, "LOWER"); 629 } 630 631 int 632 union_print(struct vnode *vp, 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(struct mount *maddr) 649 { 650 static struct mtab { 651 struct mtab *next; 652 struct mount *maddr; 653 struct mount mount; 654 } *mhead = NULL; 655 struct mtab *mt; 656 struct mount mb; 657 658 for (mt = mhead; mt != NULL; mt = mt->next) 659 if (maddr == mt->maddr) 660 return (&mt->mount); 661 KGETRET(maddr, &mb, sizeof(struct mount), "mount table"); 662 if ((mt = malloc(sizeof(struct mtab))) == NULL) 663 err(1, "malloc"); 664 mt->mount = mb; 665 mt->maddr = maddr; 666 mt->next = mhead; 667 mhead = mt; 668 return (&mt->mount); 669 } 670 671 void 672 mount_print(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(int *avnodes) 698 { 699 int mib[2]; 700 size_t copysize; 701 char *vnodebase; 702 703 if (memf != NULL) { 704 /* 705 * do it by hand 706 */ 707 return (kinfo_vnodes(avnodes)); 708 } 709 mib[0] = CTL_KERN; 710 mib[1] = KERN_VNODE; 711 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 712 err(1, "sysctl: KERN_VNODE"); 713 if ((vnodebase = malloc(copysize)) == NULL) 714 err(1, "malloc"); 715 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 716 err(1, "sysctl: KERN_VNODE"); 717 if (copysize % (VPTRSZ + VNODESZ)) 718 errx(1, "vnode size mismatch"); 719 *avnodes = copysize / (VPTRSZ + VNODESZ); 720 721 return (vnodebase); 722 } 723 724 /* 725 * simulate what a running kernel does in in kinfo_vnode 726 */ 727 char * 728 kinfo_vnodes(int *avnodes) 729 { 730 struct mntlist mountlist; 731 struct mount *mp, mount; 732 struct vnode *vp, vnode; 733 char *beg, *bp, *ep; 734 int numvnodes; 735 736 KGET(V_NUMV, numvnodes); 737 if ((bp = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 738 err(1, "malloc"); 739 beg = bp; 740 ep = bp + (numvnodes + 20) * (VPTRSZ + VNODESZ); 741 KGET(V_MOUNTLIST, mountlist); 742 for (mp = mountlist.cqh_first;; 743 mp = mount.mnt_list.cqe_next) { 744 KGET2(mp, &mount, sizeof(mount), "mount entry"); 745 TAILQ_FOREACH(vp, &mount.mnt_vnodelist, v_mntvnodes) { 746 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 747 if (bp + VPTRSZ + VNODESZ > ep) 748 /* XXX - should realloc */ 749 errx(1, "no more room for vnodes"); 750 memmove(bp, &vp, VPTRSZ); 751 bp += VPTRSZ; 752 memmove(bp, &vnode, VNODESZ); 753 bp += VNODESZ; 754 } 755 if (mp == mountlist.cqh_last) 756 break; 757 } 758 *avnodes = (bp - beg) / (VPTRSZ + VNODESZ); 759 return (beg); 760 } 761 762 void 763 ttymode(void) 764 { 765 int ntty; 766 struct ttylist_head tty_head; 767 struct tty *tp, tty; 768 769 KGET(TTY_NTTY, ntty); 770 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 771 KGET(TTY_TTYLIST, tty_head); 772 (void)printf( 773 " LINE RAW CAN OUT HWT LWT COL STATE %-*s PGID DISC\n", 774 PTRSTRWIDTH, "SESS"); 775 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 776 KGET2(tp, &tty, sizeof tty, "tty struct"); 777 ttyprt(&tty); 778 } 779 } 780 781 static const struct flagbit_desc ttystates[] = { 782 { TS_ISOPEN, 'O'}, 783 { TS_DIALOUT, '>'}, 784 { TS_CARR_ON, 'C'}, 785 { TS_TIMEOUT, 'T'}, 786 { TS_FLUSH, 'F'}, 787 { TS_BUSY, 'B'}, 788 { TS_ASLEEP, 'A'}, 789 { TS_XCLUDE, 'X'}, 790 { TS_TTSTOP, 'S'}, 791 { TS_TBLOCK, 'K'}, 792 { TS_ASYNC, 'Y'}, 793 { TS_BKSL, 'D'}, 794 { TS_ERASE, 'E'}, 795 { TS_LNCH, 'L'}, 796 { TS_TYPEN, 'P'}, 797 { TS_CNTTB, 'N'}, 798 { 0, '\0'}, 799 }; 800 801 void 802 ttyprt(struct tty *tp) 803 { 804 char state[sizeof(ttystates) / sizeof(ttystates[0]) + 1]; 805 char dev[2 + 3 + 1 + 5 + 1]; /* 12bit major + 20bit minor */ 806 struct linesw t_linesw; 807 const char *name; 808 char buffer; 809 pid_t pgid; 810 int n, ovflw; 811 812 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) { 813 (void)snprintf(dev, sizeof(dev), "0x%3x:%x", 814 major(tp->t_dev), minor(tp->t_dev)); 815 name = dev; 816 } 817 ovflw = 0; 818 PRWORD(ovflw, "%-*s", 7, 0, name); 819 PRWORD(ovflw, " %*d", 3, 1, tp->t_rawq.c_cc); 820 PRWORD(ovflw, " %*d", 4, 1, tp->t_canq.c_cc); 821 PRWORD(ovflw, " %*d", 4, 1, tp->t_outq.c_cc); 822 PRWORD(ovflw, " %*d", 5, 1, tp->t_hiwat); 823 PRWORD(ovflw, " %*d", 4, 1, tp->t_lowat); 824 PRWORD(ovflw, " %*d", 8, 1, tp->t_column); 825 n = getflags(ttystates, state, tp->t_state); 826 if (tp->t_wopen) { 827 state[n++] = 'W'; 828 state[n] = '\0'; 829 } 830 PRWORD(ovflw, " %-*s", 7, 1, state); 831 PRWORD(ovflw, " %*lX", PTRSTRWIDTH + 1, 1, (u_long)tp->t_session); 832 pgid = 0; 833 if (tp->t_pgrp != NULL) 834 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 835 PRWORD(ovflw, " %*d", 6, 1, pgid); 836 KGET2(tp->t_linesw, &t_linesw, sizeof(t_linesw), 837 "line discipline switch table"); 838 name = t_linesw.l_name; 839 (void)putchar(' '); 840 for (;;) { 841 KGET2(name, &buffer, sizeof(buffer), "line discipline name"); 842 if (buffer == '\0') 843 break; 844 (void)putchar(buffer); 845 name++; 846 } 847 (void)putchar('\n'); 848 } 849 850 static const struct flagbit_desc filemode_flags[] = { 851 { FREAD, 'R' }, 852 { FWRITE, 'W' }, 853 { FAPPEND, 'A' }, 854 #ifdef FSHLOCK /* currently gone */ 855 { FSHLOCK, 'S' }, 856 { FEXLOCK, 'X' }, 857 #endif 858 { FASYNC, 'I' }, 859 { 0, '\0' }, 860 }; 861 862 void 863 filemode(void) 864 { 865 struct file *fp; 866 struct file *addr; 867 char flags[sizeof(filemode_flags) / sizeof(filemode_flags[0])]; 868 char *buf, *offset; 869 int len, maxfile, nfile, ovflw; 870 871 KGET(FNL_MAXFILE, maxfile); 872 if (totalflag) { 873 KGET(FNL_NFILE, nfile); 874 (void)printf("%3d/%3d files\n", nfile, maxfile); 875 return; 876 } 877 if (getfiles(&buf, &len, &offset) == -1) 878 return; 879 /* 880 * Getfiles returns in malloc'd memory a pointer to the first file 881 * structure, and then an array of file structs (whose addresses are 882 * derivable from the previous entry). 883 */ 884 addr = ((struct filelist *)offset)->lh_first; 885 fp = (struct file *)(offset + sizeof(struct filelist)); 886 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 887 888 (void)printf("%d/%d open files\n", nfile, maxfile); 889 (void)printf("%*s%s%*s TYPE FLG CNT MSG %*s%s%*s USE IFLG OFFSET\n", 890 (PTRSTRWIDTH - 4) / 2, "", " LOC", (PTRSTRWIDTH - 4) / 2, "", 891 (PTRSTRWIDTH - 4) / 2, "", "DATA", (PTRSTRWIDTH - 4) / 2, ""); 892 for (; (char *)fp < offset + len; addr = fp->f_list.le_next, fp++) { 893 if ((unsigned)fp->f_type >= sizeof(dtypes) / sizeof(dtypes[0])) 894 continue; 895 ovflw = 0; 896 (void)getflags(filemode_flags, flags, fp->f_flag); 897 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)addr); 898 PRWORD(ovflw, " %-*s", 9, 1, dtypes[fp->f_type]); 899 PRWORD(ovflw, " %*s", 6, 1, flags); 900 PRWORD(ovflw, " %*d", 5, 1, fp->f_count); 901 PRWORD(ovflw, " %*d", 5, 1, fp->f_msgcount); 902 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 2, (long)fp->f_data); 903 PRWORD(ovflw, " %*d", 5, 1, fp->f_usecount); 904 PRWORD(ovflw, " %*x", 5, 1, fp->f_iflags); 905 if (fp->f_offset < 0) 906 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 907 (long long)fp->f_offset); 908 else 909 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 910 (long long)fp->f_offset); 911 } 912 free(buf); 913 } 914 915 int 916 getfiles(char **abuf, int *alen, char **aoffset) 917 { 918 size_t len; 919 int mib[2]; 920 char *buf; 921 size_t offset; 922 923 /* 924 * XXX 925 * Add emulation of KINFO_FILE here. 926 */ 927 if (memf != NULL) 928 errx(1, "files on dead kernel, not implemented"); 929 930 mib[0] = CTL_KERN; 931 mib[1] = KERN_FILE; 932 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 933 warn("sysctl: KERN_FILE"); 934 return (-1); 935 } 936 /* We need to align (struct file *) in the buffer. */ 937 offset = len % sizeof(off_t); 938 if ((buf = malloc(len + offset)) == NULL) 939 err(1, "malloc"); 940 if (sysctl(mib, 2, buf + offset, &len, NULL, 0) == -1) { 941 warn("sysctl: KERN_FILE"); 942 return (-1); 943 } 944 *abuf = buf; 945 *alen = len; 946 *aoffset = (buf + offset); 947 return (0); 948 } 949 950 void 951 usage(void) 952 { 953 954 (void)fprintf(stderr, 955 "usage: %s [-T|-f|-s|-t|-v] [-ghkmn] [-M core] [-N system]\n", 956 getprogname()); 957 exit(1); 958 } 959
Indexes created Tue Sep 23 14:10:03 GMT 2025