pstat.c revision 1.94
1 /* $NetBSD: pstat.c,v 1.94 2006/03/17 21:01:02 elad 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 1.94 2006/03/17 21:01:02 elad Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #include <sys/param.h> 47 #include <sys/time.h> 48 #include <sys/vnode.h> 49 #include <sys/ucred.h> 50 #define _KERNEL 51 #include <sys/file.h> 52 #include <ufs/ufs/inode.h> 53 #define NFS 54 #include <sys/mount.h> 55 #undef NFS 56 #include <sys/uio.h> 57 #include <sys/namei.h> 58 #include <miscfs/genfs/layer.h> 59 #include <miscfs/union/union.h> 60 #undef _KERNEL 61 #include <sys/stat.h> 62 #include <nfs/nfsproto.h> 63 #include <nfs/rpcv2.h> 64 #include <nfs/nfs.h> 65 #include <nfs/nfsnode.h> 66 #include <sys/ioctl.h> 67 #include <sys/tty.h> 68 #include <sys/conf.h> 69 #include <sys/device.h> 70 71 #include <sys/sysctl.h> 72 73 #include <err.h> 74 #include <kvm.h> 75 #include <limits.h> 76 #include <nlist.h> 77 #include <stdio.h> 78 #include <stdlib.h> 79 #include <string.h> 80 #include <unistd.h> 81 82 #include "swapctl.h" 83 84 struct nlist nl[] = { 85 #define V_MOUNTLIST 0 86 { "_mountlist" }, /* address of head of mount list. */ 87 #define V_NUMV 1 88 { "_numvnodes" }, 89 #define FNL_NFILE 2 90 { "_nfiles" }, 91 #define FNL_MAXFILE 3 92 { "_maxfiles" }, 93 #define TTY_NTTY 4 94 { "_tty_count" }, 95 #define TTY_TTYLIST 5 96 { "_ttylist" }, 97 #define NLMANDATORY TTY_TTYLIST /* names up to here are mandatory */ 98 { "" } 99 }; 100 101 int usenumflag; 102 int totalflag; 103 int kflag; 104 int hflag; 105 char *nlistf = NULL; 106 char *memf = NULL; 107 kvm_t *kd; 108 109 static const char * const dtypes[] = { DTYPE_NAMES }; 110 111 112 static const struct { 113 u_int m_flag; 114 u_int m_visible; 115 const char *m_name; 116 } mnt_flags[] = { 117 __MNT_FLAGS 118 }; 119 120 struct flagbit_desc { 121 u_int fd_flags; 122 char fd_mark; 123 }; 124 125 #define SVAR(var) __STRING(var) /* to force expansion */ 126 #define KGET(idx, var) \ 127 KGET1(idx, &var, sizeof(var), SVAR(var)) 128 #define KGET1(idx, p, s, msg) \ 129 KGET2(nl[idx].n_value, p, s, msg) 130 #define KGET2(addr, p, s, msg) do { \ 131 if (kvm_read(kd, (u_long)(addr), p, s) != s) \ 132 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 133 } while (/* CONSTCOND */0) 134 #define KGETRET(addr, p, s, msg) do { \ 135 if (kvm_read(kd, (u_long)(addr), p, s) != s) { \ 136 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 137 return (0); \ 138 } \ 139 } while (/* CONSTCOND */0) 140 141 #if 1 /* This is copied from vmstat/vmstat.c */ 142 /* 143 * Print single word. `ovflow' is number of characters didn't fit 144 * on the last word. `fmt' is a format string to print this word. 145 * It must contain asterisk for field width. `width' is a width 146 * occupied by this word. `fixed' is a number of constant chars in 147 * `fmt'. `val' is a value to be printed using format string `fmt'. 148 */ 149 #define PRWORD(ovflw, fmt, width, fixed, val) do { \ 150 (ovflw) += printf((fmt), \ 151 (width) - (fixed) - (ovflw) > 0 ? \ 152 (width) - (fixed) - (ovflw) : 0, \ 153 (val)) - (width); \ 154 if ((ovflw) < 0) \ 155 (ovflw) = 0; \ 156 } while (/* CONSTCOND */0) 157 #endif 158 159 void filemode(void); 160 int getfiles(char **, int *, char **); 161 int getflags(const struct flagbit_desc *, char *, u_int); 162 struct mount * 163 getmnt(struct mount *); 164 char * kinfo_vnodes(int *); 165 void layer_header(void); 166 int layer_print(struct vnode *, int); 167 char * loadvnodes(int *); 168 int main(int, char **); 169 void mount_print(struct mount *); 170 void nfs_header(void); 171 int nfs_print(struct vnode *, int); 172 void ttymode(void); 173 void ttyprt(struct tty *); 174 void ufs_header(void); 175 int ufs_print(struct vnode *, int); 176 int ext2fs_print(struct vnode *, int); 177 void union_header(void); 178 int union_print(struct vnode *, int); 179 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 void 290 vnodemode(void) 291 { 292 char *e_vnodebase, *endvnode, *evp; 293 struct vnode *vp; 294 struct mount *maddr, *mp; 295 int numvnodes, ovflw; 296 int (*vnode_fsprint) (struct vnode *, int); /* per-fs data printer */ 297 298 mp = NULL; 299 e_vnodebase = loadvnodes(&numvnodes); 300 if (totalflag) { 301 (void)printf("%7d vnodes\n", numvnodes); 302 goto out; 303 } 304 endvnode = e_vnodebase + numvnodes * (VPTRSZ + VNODESZ); 305 (void)printf("%d active vnodes\n", numvnodes); 306 307 #define ST mp->mnt_stat 308 #define FSTYPE_IS(mp, name) \ 309 (strncmp((mp)->mnt_stat.f_fstypename, (name), MFSNAMELEN) == 0) 310 maddr = NULL; 311 vnode_fsprint = NULL; 312 for (evp = e_vnodebase; evp < endvnode; evp += VPTRSZ + VNODESZ) { 313 vp = (struct vnode *)(evp + VPTRSZ); 314 if (vp->v_mount != maddr) { 315 /* 316 * New filesystem 317 */ 318 if ((mp = getmnt(vp->v_mount)) == NULL) 319 continue; 320 maddr = vp->v_mount; 321 mount_print(mp); 322 vnode_header(); 323 if (FSTYPE_IS(mp, MOUNT_FFS) || 324 FSTYPE_IS(mp, MOUNT_MFS)) { 325 ufs_header(); 326 vnode_fsprint = ufs_print; 327 } else if (FSTYPE_IS(mp, MOUNT_NFS)) { 328 nfs_header(); 329 vnode_fsprint = nfs_print; 330 } else if (FSTYPE_IS(mp, MOUNT_EXT2FS)) { 331 ufs_header(); 332 vnode_fsprint = ext2fs_print; 333 } else if (FSTYPE_IS(mp, MOUNT_NULL) || 334 FSTYPE_IS(mp, MOUNT_OVERLAY) || 335 FSTYPE_IS(mp, MOUNT_UMAP)) { 336 layer_header(); 337 vnode_fsprint = layer_print; 338 } else if (FSTYPE_IS(mp, MOUNT_UNION)) { 339 union_header(); 340 vnode_fsprint = union_print; 341 } else 342 vnode_fsprint = NULL; 343 (void)printf("\n"); 344 } 345 ovflw = vnode_print(*(struct vnode **)evp, vp); 346 if (VTOI(vp) != NULL && vnode_fsprint != NULL) 347 (*vnode_fsprint)(vp, ovflw); 348 (void)printf("\n"); 349 } 350 351 out: 352 free(e_vnodebase); 353 } 354 355 int 356 getflags(const struct flagbit_desc *fd, char *p, u_int flags) 357 { 358 char *q = p; 359 360 if (flags == 0) { 361 *p++ = '-'; 362 *p = '\0'; 363 return (0); 364 } 365 366 for (; fd->fd_flags != 0; fd++) 367 if ((flags & fd->fd_flags) != 0) 368 *p++ = fd->fd_mark; 369 *p = '\0'; 370 return (p - q); 371 } 372 373 const struct flagbit_desc vnode_flags[] = { 374 { VROOT, 'R' }, 375 { VTEXT, 'T' }, 376 { VSYSTEM, 'S' }, 377 { VISTTY, 'I' }, 378 { VEXECMAP, 'E' }, 379 { VXLOCK, 'L' }, 380 { VXWANT, 'W' }, 381 { VBWAIT, 'B' }, 382 { VALIASED, 'A' }, 383 { VDIROP, 'D' }, 384 { VLAYER, 'Y' }, 385 { VONWORKLST, 'O' }, 386 { 0, '\0' }, 387 }; 388 389 void 390 vnode_header(void) 391 { 392 393 (void)printf("%-*s TYP VFLAG USE HOLD TAG NPAGE", 394 PTRSTRWIDTH, "ADDR"); 395 } 396 397 int 398 vnode_print(struct vnode *avnode, struct vnode *vp) 399 { 400 char *type, flags[sizeof(vnode_flags) / sizeof(vnode_flags[0])]; 401 int ovflw; 402 403 /* 404 * set type 405 */ 406 switch (vp->v_type) { 407 case VNON: 408 type = "non"; break; 409 case VREG: 410 type = "reg"; break; 411 case VDIR: 412 type = "dir"; break; 413 case VBLK: 414 type = "blk"; break; 415 case VCHR: 416 type = "chr"; break; 417 case VLNK: 418 type = "lnk"; break; 419 case VSOCK: 420 type = "soc"; break; 421 case VFIFO: 422 type = "fif"; break; 423 case VBAD: 424 type = "bad"; break; 425 default: 426 type = "unk"; break; 427 } 428 /* 429 * gather flags 430 */ 431 (void)getflags(vnode_flags, flags, vp->v_flag); 432 433 ovflw = 0; 434 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)avnode); 435 PRWORD(ovflw, " %*s", 4, 1, type); 436 PRWORD(ovflw, " %*s", 6, 1, flags); 437 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_usecount); 438 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_holdcnt); 439 PRWORD(ovflw, " %*d", 4, 1, vp->v_tag); 440 PRWORD(ovflw, " %*d", 6, 1, vp->v_uobj.uo_npages); 441 return (ovflw); 442 } 443 444 const struct flagbit_desc ufs_flags[] = { 445 { IN_ACCESS, 'A' }, 446 { IN_CHANGE, 'C' }, 447 { IN_UPDATE, 'U' }, 448 { IN_MODIFIED, 'M' }, 449 { IN_ACCESSED, 'a' }, 450 { IN_RENAME, 'R' }, 451 { IN_SHLOCK, 'S' }, 452 { IN_EXLOCK, 'E' }, 453 { IN_CLEANING, 'c' }, 454 { IN_ADIROP, 'D' }, 455 { IN_SPACECOUNTED, 's' }, 456 { 0, '\0' }, 457 }; 458 459 void 460 ufs_header(void) 461 { 462 463 (void)printf(" FILEID IFLAG RDEV|SZ"); 464 } 465 466 int 467 ufs_print(struct vnode *vp, int ovflw) 468 { 469 struct inode inode, *ip = &inode; 470 union dinode { 471 struct ufs1_dinode dp1; 472 struct ufs2_dinode dp2; 473 } dip; 474 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 475 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 476 char *name; 477 mode_t type; 478 dev_t rdev; 479 480 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 481 KGETRET(ip->i_din.ffs1_din, &dip, sizeof (struct ufs1_dinode), 482 "inode's dinode"); 483 484 if (ip->i_size == dip.dp1.di_size) 485 rdev = dip.dp1.di_rdev; 486 else { 487 KGETRET(ip->i_din.ffs1_din, &dip, sizeof (struct ufs2_dinode), 488 "inode's UFS2 dinode"); 489 rdev = dip.dp2.di_rdev; 490 } 491 492 /* 493 * XXX need to to locking state. 494 */ 495 496 (void)getflags(ufs_flags, flags, ip->i_flag); 497 PRWORD(ovflw, " %*llu", 7, 1, (unsigned long long)ip->i_number); 498 PRWORD(ovflw, " %*s", 6, 1, flags); 499 type = ip->i_mode & S_IFMT; 500 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) { 501 if (usenumflag || 502 (name = devname(rdev, type)) == NULL) { 503 snprintf(dev, sizeof(dev), "%d,%d", 504 major(rdev), minor(rdev)); 505 name = dev; 506 } 507 PRWORD(ovflw, " %*s", 8, 1, name); 508 } else 509 PRWORD(ovflw, " %*lld", 8, 1, (long long)ip->i_size); 510 return 0; 511 } 512 513 int 514 ext2fs_print(struct vnode *vp, int ovflw) 515 { 516 struct inode inode, *ip = &inode; 517 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 518 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 519 char *name; 520 mode_t type; 521 522 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 523 524 /* 525 * XXX need to to locking state. 526 */ 527 528 (void)getflags(ufs_flags, flags, ip->i_flag); 529 PRWORD(ovflw, " %*llu", 7, 1, (unsigned long long)ip->i_number); 530 PRWORD(ovflw, " %*s", 6, 1, flags); 531 type = ip->i_e2fs_mode & S_IFMT; 532 if (S_ISCHR(ip->i_e2fs_mode) || S_ISBLK(ip->i_e2fs_mode)) { 533 if (usenumflag || 534 (name = devname(ip->i_e2fs_rdev, type)) == NULL) { 535 snprintf(dev, sizeof(dev), "%d,%d", 536 major(ip->i_e2fs_rdev), minor(ip->i_e2fs_rdev)); 537 name = dev; 538 } 539 PRWORD(ovflw, " %*s", 8, 1, name); 540 } else 541 PRWORD(ovflw, " %*u", 8, 1, (u_int)ip->i_e2fs_size); 542 return (0); 543 } 544 545 const struct flagbit_desc nfs_flags[] = { 546 { NFLUSHWANT, 'W' }, 547 { NFLUSHINPROG, 'P' }, 548 { NMODIFIED, 'M' }, 549 { NWRITEERR, 'E' }, 550 { NQNFSNONCACHE, 'X' }, 551 { NQNFSWRITE, 'O' }, 552 { NQNFSEVICTED, 'G' }, 553 { NACC, 'A' }, 554 { NUPD, 'U' }, 555 { NCHG, 'C' }, 556 { 0, '\0' }, 557 }; 558 559 void 560 nfs_header(void) 561 { 562 563 (void)printf(" FILEID NFLAG RDEV|SZ"); 564 } 565 566 int 567 nfs_print(struct vnode *vp, int ovflw) 568 { 569 struct nfsnode nfsnode, *np = &nfsnode; 570 char flags[sizeof(nfs_flags) / sizeof(nfs_flags[0])]; 571 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 572 struct vattr va; 573 char *name; 574 mode_t type; 575 576 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 577 (void)getflags(nfs_flags, flags, np->n_flag); 578 579 KGETRET(np->n_vattr, &va, sizeof(va), "vnode attr"); 580 PRWORD(ovflw, " %*ld", 7, 1, (long)va.va_fileid); 581 PRWORD(ovflw, " %*s", 6, 1, flags); 582 switch (va.va_type) { 583 case VCHR: 584 type = S_IFCHR; 585 goto device; 586 587 case VBLK: 588 type = S_IFBLK; 589 device: 590 if (usenumflag || (name = devname(va.va_rdev, type)) == NULL) { 591 (void)snprintf(dev, sizeof(dev), "%d,%d", 592 major(va.va_rdev), minor(va.va_rdev)); 593 name = dev; 594 } 595 PRWORD(ovflw, " %*s", 8, 1, name); 596 break; 597 default: 598 PRWORD(ovflw, " %*lld", 8, 1, (long long)np->n_size); 599 break; 600 } 601 return (0); 602 } 603 604 void 605 layer_header(void) 606 { 607 608 (void)printf(" %*s", PTRSTRWIDTH, "LOWER"); 609 } 610 611 int 612 layer_print(struct vnode *vp, int ovflw) 613 { 614 struct layer_node lnode, *lp = &lnode; 615 616 KGETRET(VTOLAYER(vp), &lnode, sizeof(lnode), "layer vnode"); 617 618 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)lp->layer_lowervp); 619 return (0); 620 } 621 622 void 623 union_header(void) 624 { 625 626 (void)printf(" %*s %*s", PTRSTRWIDTH, "UPPER", PTRSTRWIDTH, "LOWER"); 627 } 628 629 int 630 union_print(struct vnode *vp, int ovflw) 631 { 632 struct union_node unode, *up = &unode; 633 634 KGETRET(VTOUNION(vp), &unode, sizeof(unode), "vnode's unode"); 635 636 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)up->un_uppervp); 637 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)up->un_lowervp); 638 return (0); 639 } 640 641 /* 642 * Given a pointer to a mount structure in kernel space, 643 * read it in and return a usable pointer to it. 644 */ 645 struct mount * 646 getmnt(struct mount *maddr) 647 { 648 static struct mtab { 649 struct mtab *next; 650 struct mount *maddr; 651 struct mount mount; 652 } *mhead = NULL; 653 struct mtab *mt; 654 655 for (mt = mhead; mt != NULL; mt = mt->next) 656 if (maddr == mt->maddr) 657 return (&mt->mount); 658 if ((mt = malloc(sizeof(struct mtab))) == NULL) 659 err(1, "malloc"); 660 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 661 mt->maddr = maddr; 662 mt->next = mhead; 663 mhead = mt; 664 return (&mt->mount); 665 } 666 667 void 668 mount_print(struct mount *mp) 669 { 670 int flags; 671 672 (void)printf("*** MOUNT %s %s on %s", ST.f_fstypename, 673 ST.f_mntfromname, ST.f_mntonname); 674 if ((flags = mp->mnt_flag) != 0) { 675 int i; 676 const char *sep = " ("; 677 678 for (i = 0; i < sizeof mnt_flags / sizeof mnt_flags[0]; i++) { 679 if (flags & mnt_flags[i].m_flag) { 680 (void)printf("%s%s", sep, mnt_flags[i].m_name); 681 flags &= ~mnt_flags[i].m_flag; 682 sep = ","; 683 } 684 } 685 if (flags) 686 (void)printf("%sunknown_flags:%x", sep, flags); 687 (void)printf(")"); 688 } 689 (void)printf("\n"); 690 } 691 692 char * 693 loadvnodes(int *avnodes) 694 { 695 int mib[2]; 696 size_t copysize; 697 char *vnodebase; 698 699 if (memf != NULL) { 700 /* 701 * do it by hand 702 */ 703 return (kinfo_vnodes(avnodes)); 704 } 705 mib[0] = CTL_KERN; 706 mib[1] = KERN_VNODE; 707 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 708 err(1, "sysctl: KERN_VNODE"); 709 if ((vnodebase = malloc(copysize)) == NULL) 710 err(1, "malloc"); 711 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 712 err(1, "sysctl: KERN_VNODE"); 713 if (copysize % (VPTRSZ + VNODESZ)) 714 errx(1, "vnode size mismatch"); 715 *avnodes = copysize / (VPTRSZ + VNODESZ); 716 717 return (vnodebase); 718 } 719 720 /* 721 * simulate what a running kernel does in in kinfo_vnode 722 */ 723 char * 724 kinfo_vnodes(int *avnodes) 725 { 726 struct mntlist mountlist; 727 struct mount *mp, mount; 728 struct vnode *vp, vnode; 729 char *beg, *bp, *ep; 730 int numvnodes; 731 732 KGET(V_NUMV, numvnodes); 733 if ((bp = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 734 err(1, "malloc"); 735 beg = bp; 736 ep = bp + (numvnodes + 20) * (VPTRSZ + VNODESZ); 737 KGET(V_MOUNTLIST, mountlist); 738 for (mp = mountlist.cqh_first;; 739 mp = mount.mnt_list.cqe_next) { 740 KGET2(mp, &mount, sizeof(mount), "mount entry"); 741 for (vp = mount.mnt_vnodelist.lh_first; 742 vp != NULL; vp = vnode.v_mntvnodes.le_next) { 743 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 744 if (bp + VPTRSZ + VNODESZ > ep) 745 /* XXX - should realloc */ 746 errx(1, "no more room for vnodes"); 747 memmove(bp, &vp, VPTRSZ); 748 bp += VPTRSZ; 749 memmove(bp, &vnode, VNODESZ); 750 bp += VNODESZ; 751 } 752 if (mp == mountlist.cqh_last) 753 break; 754 } 755 *avnodes = (bp - beg) / (VPTRSZ + VNODESZ); 756 return (beg); 757 } 758 759 void 760 ttymode(void) 761 { 762 int ntty; 763 struct ttylist_head tty_head; 764 struct tty *tp, tty; 765 766 KGET(TTY_NTTY, ntty); 767 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 768 KGET(TTY_TTYLIST, tty_head); 769 (void)printf( 770 " LINE RAW CAN OUT HWT LWT COL STATE %-*s PGID DISC\n", 771 PTRSTRWIDTH, "SESS"); 772 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 773 KGET2(tp, &tty, sizeof tty, "tty struct"); 774 ttyprt(&tty); 775 } 776 } 777 778 static const struct flagbit_desc ttystates[] = { 779 { TS_ISOPEN, 'O'}, 780 { TS_DIALOUT, '>'}, 781 { TS_CARR_ON, 'C'}, 782 { TS_TIMEOUT, 'T'}, 783 { TS_FLUSH, 'F'}, 784 { TS_BUSY, 'B'}, 785 { TS_ASLEEP, 'A'}, 786 { TS_XCLUDE, 'X'}, 787 { TS_TTSTOP, 'S'}, 788 { TS_TBLOCK, 'K'}, 789 { TS_ASYNC, 'Y'}, 790 { TS_BKSL, 'D'}, 791 { TS_ERASE, 'E'}, 792 { TS_LNCH, 'L'}, 793 { TS_TYPEN, 'P'}, 794 { TS_CNTTB, 'N'}, 795 { 0, '\0'}, 796 }; 797 798 void 799 ttyprt(struct tty *tp) 800 { 801 char state[sizeof(ttystates) / sizeof(ttystates[0]) + 1]; 802 char dev[2 + 3 + 1 + 5 + 1]; /* 12bit major + 20bit minor */ 803 struct linesw t_linesw; 804 const char *name; 805 char buffer; 806 pid_t pgid; 807 int n, ovflw; 808 809 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) { 810 (void)snprintf(dev, sizeof(dev), "0x%3x:%x", 811 major(tp->t_dev), minor(tp->t_dev)); 812 name = dev; 813 } 814 ovflw = 0; 815 PRWORD(ovflw, "%-*s", 7, 0, name); 816 PRWORD(ovflw, " %*d", 3, 1, tp->t_rawq.c_cc); 817 PRWORD(ovflw, " %*d", 4, 1, tp->t_canq.c_cc); 818 PRWORD(ovflw, " %*d", 4, 1, tp->t_outq.c_cc); 819 PRWORD(ovflw, " %*d", 5, 1, tp->t_hiwat); 820 PRWORD(ovflw, " %*d", 4, 1, tp->t_lowat); 821 PRWORD(ovflw, " %*d", 8, 1, tp->t_column); 822 n = getflags(ttystates, state, tp->t_state); 823 if (tp->t_wopen) { 824 state[n++] = 'W'; 825 state[n] = '\0'; 826 } 827 PRWORD(ovflw, " %-*s", 7, 1, state); 828 PRWORD(ovflw, " %*lX", PTRSTRWIDTH + 1, 1, (u_long)tp->t_session); 829 pgid = 0; 830 if (tp->t_pgrp != NULL) 831 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 832 PRWORD(ovflw, " %*d", 6, 1, pgid); 833 KGET2(tp->t_linesw, &t_linesw, sizeof(t_linesw), 834 "line discipline switch table"); 835 name = t_linesw.l_name; 836 (void)putchar(' '); 837 for (;;) { 838 KGET2(name, &buffer, sizeof(buffer), "line discipline name"); 839 if (buffer == '\0') 840 break; 841 (void)putchar(buffer); 842 name++; 843 } 844 (void)putchar('\n'); 845 } 846 847 static const struct flagbit_desc filemode_flags[] = { 848 { FREAD, 'R' }, 849 { FWRITE, 'W' }, 850 { FAPPEND, 'A' }, 851 #ifdef FSHLOCK /* currently gone */ 852 { FSHLOCK, 'S' }, 853 { FEXLOCK, 'X' }, 854 #endif 855 { FASYNC, 'I' }, 856 { 0, '\0' }, 857 }; 858 859 void 860 filemode(void) 861 { 862 struct file *fp; 863 struct file *addr; 864 char flags[sizeof(filemode_flags) / sizeof(filemode_flags[0])]; 865 char *buf, *offset; 866 int len, maxfile, nfile, ovflw; 867 868 KGET(FNL_MAXFILE, maxfile); 869 if (totalflag) { 870 KGET(FNL_NFILE, nfile); 871 (void)printf("%3d/%3d files\n", nfile, maxfile); 872 return; 873 } 874 if (getfiles(&buf, &len, &offset) == -1) 875 return; 876 /* 877 * Getfiles returns in malloc'd memory a pointer to the first file 878 * structure, and then an array of file structs (whose addresses are 879 * derivable from the previous entry). 880 */ 881 addr = ((struct filelist *)offset)->lh_first; 882 fp = (struct file *)(offset + sizeof(struct filelist)); 883 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 884 885 (void)printf("%d/%d open files\n", nfile, maxfile); 886 (void)printf("%*s%s%*s TYPE FLG CNT MSG %*s%s%*s USE IFLG OFFSET\n", 887 (PTRSTRWIDTH - 4) / 2, "", " LOC", (PTRSTRWIDTH - 4) / 2, "", 888 (PTRSTRWIDTH - 4) / 2, "", "DATA", (PTRSTRWIDTH - 4) / 2, ""); 889 for (; (char *)fp < offset + len; addr = fp->f_list.le_next, fp++) { 890 if ((unsigned)fp->f_type >= sizeof(dtypes) / sizeof(dtypes[0])) 891 continue; 892 ovflw = 0; 893 (void)getflags(filemode_flags, flags, fp->f_flag); 894 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)addr); 895 PRWORD(ovflw, " %-*s", 9, 1, dtypes[fp->f_type]); 896 PRWORD(ovflw, " %*s", 6, 1, flags); 897 PRWORD(ovflw, " %*d", 5, 1, fp->f_count); 898 PRWORD(ovflw, " %*d", 5, 1, fp->f_msgcount); 899 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 2, (long)fp->f_data); 900 PRWORD(ovflw, " %*d", 5, 1, fp->f_usecount); 901 PRWORD(ovflw, " %*x", 5, 1, fp->f_iflags); 902 if (fp->f_offset < 0) 903 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 904 (long long)fp->f_offset); 905 else 906 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 907 (long long)fp->f_offset); 908 } 909 free(buf); 910 } 911 912 int 913 getfiles(char **abuf, int *alen, char **aoffset) 914 { 915 size_t len; 916 int mib[2]; 917 char *buf; 918 size_t offset; 919 920 /* 921 * XXX 922 * Add emulation of KINFO_FILE here. 923 */ 924 if (memf != NULL) 925 errx(1, "files on dead kernel, not implemented"); 926 927 mib[0] = CTL_KERN; 928 mib[1] = KERN_FILE; 929 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 930 warn("sysctl: KERN_FILE"); 931 return (-1); 932 } 933 /* We need to align (struct file *) in the buffer. */ 934 offset = len % sizeof(off_t); 935 if ((buf = malloc(len + offset)) == NULL) 936 err(1, "malloc"); 937 if (sysctl(mib, 2, buf + offset, &len, NULL, 0) == -1) { 938 warn("sysctl: KERN_FILE"); 939 return (-1); 940 } 941 *abuf = buf; 942 *alen = len; 943 *aoffset = (buf + offset); 944 return (0); 945 } 946 947 void 948 usage(void) 949 { 950 951 (void)fprintf(stderr, 952 "usage: %s [-T|-f|-s|-t|-v] [-ghkmn] [-M core] [-N system]\n", 953 getprogname()); 954 exit(1); 955 } 956
Indexes created Tue Sep 23 14:10:03 GMT 2025