pstat.c revision 1.118
1 /* $NetBSD: pstat.c,v 1.118 2011/08/31 13:32:39 joerg 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 1.118 2011/08/31 13:32:39 joerg 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_RENAME, 'R' }, 457 { IN_SHLOCK, 'S' }, 458 { IN_EXLOCK, 'E' }, 459 { IN_CLEANING, 'c' }, 460 { IN_ADIROP, 'D' }, 461 { IN_SPACECOUNTED, 's' }, 462 { 0, '\0' }, 463 }; 464 465 void 466 ufs_header(void) 467 { 468 469 (void)printf(" FILEID IFLAG RDEV|SZ"); 470 } 471 472 int 473 ufs_print(struct vnode *vp, int ovflw) 474 { 475 struct inode inode, *ip = &inode; 476 union dinode { 477 struct ufs1_dinode dp1; 478 struct ufs2_dinode dp2; 479 } dip; 480 struct ufsmount ump; 481 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 482 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 483 char *name; 484 mode_t type; 485 dev_t rdev; 486 487 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 488 KGETRET(ip->i_ump, &ump, sizeof(struct ufsmount), 489 "vnode's mount point"); 490 491 if (ump.um_fstype == UFS1) { 492 KGETRET(ip->i_din.ffs1_din, &dip, sizeof (struct ufs1_dinode), 493 "inode's dinode"); 494 rdev = (uint32_t)dip.dp1.di_rdev; 495 } else { 496 KGETRET(ip->i_din.ffs2_din, &dip, sizeof (struct ufs2_dinode), 497 "inode's UFS2 dinode"); 498 rdev = dip.dp2.di_rdev; 499 } 500 501 /* 502 * XXX need to to locking state. 503 */ 504 505 (void)getflags(ufs_flags, flags, ip->i_flag); 506 PRWORD(ovflw, " %*llu", 7, 1, (unsigned long long)ip->i_number); 507 PRWORD(ovflw, " %*s", 6, 1, flags); 508 type = ip->i_mode & S_IFMT; 509 if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) { 510 if (usenumflag || 511 (name = devname(rdev, type)) == NULL) { 512 devprintf(dev, sizeof(dev), rdev); 513 name = dev; 514 } 515 PRWORD(ovflw, " %*s", 8, 1, name); 516 } else 517 PRWORD(ovflw, " %*lld", 8, 1, (long long)ip->i_size); 518 return 0; 519 } 520 521 int 522 ext2fs_print(struct vnode *vp, int ovflw) 523 { 524 struct inode inode, *ip = &inode; 525 struct ext2fs_dinode dip; 526 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 527 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 528 char *name; 529 mode_t type; 530 531 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 532 KGETRET(ip->i_din.e2fs_din, &dip, sizeof (struct ext2fs_dinode), 533 "inode's dinode"); 534 535 /* 536 * XXX need to to locking state. 537 */ 538 539 (void)getflags(ufs_flags, flags, ip->i_flag); 540 PRWORD(ovflw, " %*llu", 7, 1, (unsigned long long)ip->i_number); 541 PRWORD(ovflw, " %*s", 6, 1, flags); 542 type = dip.e2di_mode & S_IFMT; 543 if (S_ISCHR(dip.e2di_mode) || S_ISBLK(dip.e2di_mode)) { 544 if (usenumflag || 545 (name = devname(dip.e2di_rdev, type)) == NULL) { 546 devprintf(dev, sizeof(dev), dip.e2di_rdev); 547 name = dev; 548 } 549 PRWORD(ovflw, " %*s", 8, 1, name); 550 } else 551 PRWORD(ovflw, " %*u", 8, 1, (u_int)dip.e2di_size); 552 return (0); 553 } 554 555 const struct flagbit_desc nfs_flags[] = { 556 { NFLUSHWANT, 'W' }, 557 { NFLUSHINPROG, 'P' }, 558 { NMODIFIED, 'M' }, 559 { NWRITEERR, 'E' }, 560 { NACC, 'A' }, 561 { NUPD, 'U' }, 562 { NCHG, 'C' }, 563 { 0, '\0' }, 564 }; 565 566 void 567 nfs_header(void) 568 { 569 570 (void)printf(" FILEID NFLAG RDEV|SZ"); 571 } 572 573 int 574 nfs_print(struct vnode *vp, int ovflw) 575 { 576 struct nfsnode nfsnode, *np = &nfsnode; 577 char flags[sizeof(nfs_flags) / sizeof(nfs_flags[0])]; 578 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 579 struct vattr va; 580 char *name; 581 mode_t type; 582 583 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 584 (void)getflags(nfs_flags, flags, np->n_flag); 585 586 KGETRET(np->n_vattr, &va, sizeof(va), "vnode attr"); 587 PRWORD(ovflw, " %*ld", 7, 1, (long)va.va_fileid); 588 PRWORD(ovflw, " %*s", 6, 1, flags); 589 switch (va.va_type) { 590 case VCHR: 591 type = S_IFCHR; 592 goto device; 593 594 case VBLK: 595 type = S_IFBLK; 596 device: 597 if (usenumflag || (name = devname(va.va_rdev, type)) == NULL) { 598 devprintf(dev, sizeof(dev), va.va_rdev); 599 name = dev; 600 } 601 PRWORD(ovflw, " %*s", 8, 1, name); 602 break; 603 default: 604 PRWORD(ovflw, " %*lld", 8, 1, (long long)np->n_size); 605 break; 606 } 607 return (0); 608 } 609 610 void 611 layer_header(void) 612 { 613 614 (void)printf(" %*s", PTRSTRWIDTH, "LOWER"); 615 } 616 617 int 618 layer_print(struct vnode *vp, int ovflw) 619 { 620 struct layer_node lnode, *lp = &lnode; 621 622 KGETRET(VTOLAYER(vp), &lnode, sizeof(lnode), "layer vnode"); 623 624 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 1, (long)lp->layer_lowervp); 625 return (0); 626 } 627 628 /* 629 * Given a pointer to a mount structure in kernel space, 630 * read it in and return a usable pointer to it. 631 */ 632 struct mount * 633 getmnt(struct mount *maddr) 634 { 635 static struct mtab { 636 struct mtab *next; 637 struct mount *maddr; 638 struct mount mount; 639 } *mhead = NULL; 640 struct mtab *mt; 641 struct mount mb; 642 643 for (mt = mhead; mt != NULL; mt = mt->next) 644 if (maddr == mt->maddr) 645 return (&mt->mount); 646 KGETRET(maddr, &mb, sizeof(struct mount), "mount table"); 647 if ((mt = malloc(sizeof(struct mtab))) == NULL) 648 err(1, "malloc"); 649 mt->mount = mb; 650 mt->maddr = maddr; 651 mt->next = mhead; 652 mhead = mt; 653 return (&mt->mount); 654 } 655 656 void 657 mount_print(struct mount *mp) 658 { 659 int flags; 660 661 (void)printf("*** MOUNT %s %s on %s", ST.f_fstypename, 662 ST.f_mntfromname, ST.f_mntonname); 663 if ((flags = mp->mnt_flag) != 0) { 664 size_t i; 665 const char *sep = " ("; 666 667 for (i = 0; i < sizeof mnt_flags / sizeof mnt_flags[0]; i++) { 668 if (flags & mnt_flags[i].m_flag) { 669 (void)printf("%s%s", sep, mnt_flags[i].m_name); 670 flags &= ~mnt_flags[i].m_flag; 671 sep = ","; 672 } 673 } 674 if (flags) 675 (void)printf("%sunknown_flags:%x", sep, flags); 676 (void)printf(")"); 677 } 678 (void)printf("\n"); 679 } 680 681 char * 682 loadvnodes(int *avnodes) 683 { 684 int mib[2]; 685 size_t copysize; 686 char *vnodebase; 687 688 if (totalflag) { 689 KGET(V_NUMV, *avnodes); 690 return NULL; 691 } 692 if (memf != NULL) { 693 /* 694 * do it by hand 695 */ 696 return (kinfo_vnodes(avnodes)); 697 } 698 mib[0] = CTL_KERN; 699 mib[1] = KERN_VNODE; 700 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 701 err(1, "sysctl: KERN_VNODE"); 702 if ((vnodebase = malloc(copysize)) == NULL) 703 err(1, "malloc"); 704 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 705 err(1, "sysctl: KERN_VNODE"); 706 if (copysize % (VPTRSZ + VNODESZ)) 707 errx(1, "vnode size mismatch"); 708 *avnodes = copysize / (VPTRSZ + VNODESZ); 709 710 return (vnodebase); 711 } 712 713 /* 714 * simulate what a running kernel does in in kinfo_vnode 715 */ 716 char * 717 kinfo_vnodes(int *avnodes) 718 { 719 struct mntlist mlist; 720 struct mount *mp, mount; 721 struct vnode *vp, vnode; 722 char *beg, *bp, *ep; 723 int numvnodes; 724 725 KGET(V_NUMV, numvnodes); 726 if ((bp = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 727 err(1, "malloc"); 728 beg = bp; 729 ep = bp + (numvnodes + 20) * (VPTRSZ + VNODESZ); 730 KGET(V_MOUNTLIST, mlist); 731 for (mp = mlist.cqh_first;; 732 mp = mount.mnt_list.cqe_next) { 733 KGET2(mp, &mount, sizeof(mount), "mount entry"); 734 TAILQ_FOREACH(vp, &mount.mnt_vnodelist, v_mntvnodes) { 735 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 736 if (bp + VPTRSZ + VNODESZ > ep) 737 /* XXX - should realloc */ 738 errx(1, "no more room for vnodes"); 739 memmove(bp, &vp, VPTRSZ); 740 bp += VPTRSZ; 741 memmove(bp, &vnode, VNODESZ); 742 bp += VNODESZ; 743 } 744 if (mp == mlist.cqh_last) 745 break; 746 } 747 *avnodes = (bp - beg) / (VPTRSZ + VNODESZ); 748 return (beg); 749 } 750 751 void 752 ttymode(void) 753 { 754 int ntty; 755 struct ttylist_head tty_head; 756 struct tty *tp, tty; 757 758 KGET(TTY_NTTY, ntty); 759 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 760 KGET(TTY_TTYLIST, tty_head); 761 (void)printf( 762 " LINE RAW CAN OUT HWT LWT COL STATE %-*s PGID DISC\n", 763 PTRSTRWIDTH, "SESS"); 764 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 765 KGET2(tp, &tty, sizeof tty, "tty struct"); 766 ttyprt(&tty); 767 } 768 } 769 770 static const struct flagbit_desc ttystates[] = { 771 { TS_ISOPEN, 'O'}, 772 { TS_DIALOUT, '>'}, 773 { TS_CARR_ON, 'C'}, 774 { TS_TIMEOUT, 'T'}, 775 { TS_FLUSH, 'F'}, 776 { TS_BUSY, 'B'}, 777 { TS_XCLUDE, 'X'}, 778 { TS_TTSTOP, 'S'}, 779 { TS_TBLOCK, 'K'}, 780 { TS_ASYNC, 'Y'}, 781 { TS_BKSL, 'D'}, 782 { TS_ERASE, 'E'}, 783 { TS_LNCH, 'L'}, 784 { TS_TYPEN, 'P'}, 785 { TS_CNTTB, 'N'}, 786 { 0, '\0'}, 787 }; 788 789 void 790 ttyprt(struct tty *tp) 791 { 792 char state[sizeof(ttystates) / sizeof(ttystates[0]) + 1]; 793 char dev[2 + 3 + 1 + 5 + 1]; /* 12bit major + 20bit minor */ 794 struct linesw t_linesw; 795 const char *name; 796 char buffer; 797 pid_t pgid; 798 int n, ovflw; 799 800 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) { 801 devprintf(dev, sizeof(dev), tp->t_dev); 802 name = dev; 803 } 804 ovflw = 0; 805 PRWORD(ovflw, "%-*s", 7, 0, name); 806 PRWORD(ovflw, " %*d", 3, 1, tp->t_rawq.c_cc); 807 PRWORD(ovflw, " %*d", 4, 1, tp->t_canq.c_cc); 808 PRWORD(ovflw, " %*d", 4, 1, tp->t_outq.c_cc); 809 PRWORD(ovflw, " %*d", 5, 1, tp->t_hiwat); 810 PRWORD(ovflw, " %*d", 4, 1, tp->t_lowat); 811 PRWORD(ovflw, " %*d", 8, 1, tp->t_column); 812 n = getflags(ttystates, state, tp->t_state); 813 if (tp->t_wopen) { 814 state[n++] = 'W'; 815 state[n] = '\0'; 816 } 817 PRWORD(ovflw, " %-*s", 7, 1, state); 818 PRWORD(ovflw, " %*lX", PTRSTRWIDTH + 1, 1, (u_long)tp->t_session); 819 pgid = 0; 820 if (tp->t_pgrp != NULL) 821 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 822 PRWORD(ovflw, " %*d", 6, 1, pgid); 823 KGET2(tp->t_linesw, &t_linesw, sizeof(t_linesw), 824 "line discipline switch table"); 825 name = t_linesw.l_name; 826 (void)putchar(' '); 827 for (;;) { 828 KGET2(name, &buffer, sizeof(buffer), "line discipline name"); 829 if (buffer == '\0') 830 break; 831 (void)putchar(buffer); 832 name++; 833 } 834 (void)putchar('\n'); 835 } 836 837 static const struct flagbit_desc filemode_flags[] = { 838 { FREAD, 'R' }, 839 { FWRITE, 'W' }, 840 { FAPPEND, 'A' }, 841 #ifdef FSHLOCK /* currently gone */ 842 { FSHLOCK, 'S' }, 843 { FEXLOCK, 'X' }, 844 #endif 845 { FASYNC, 'I' }, 846 { 0, '\0' }, 847 }; 848 849 void 850 filemode(void) 851 { 852 struct kinfo_file *ki; 853 char flags[sizeof(filemode_flags) / sizeof(filemode_flags[0])]; 854 char *buf, *offset; 855 int len, maxfile, nfile, ovflw; 856 857 KGET(FNL_MAXFILE, maxfile); 858 if (totalflag) { 859 KGET(FNL_NFILE, nfile); 860 (void)printf("%3d/%3d files\n", nfile, maxfile); 861 return; 862 } 863 if (getfiles(&buf, &len, &offset) == -1) 864 return; 865 /* 866 * Getfiles returns in malloc'd memory to an array of kinfo_file2 867 * structures. 868 */ 869 nfile = len / sizeof(struct kinfo_file); 870 871 (void)printf("%d/%d open files\n", nfile, maxfile); 872 (void)printf("%*s%s%*s TYPE FLG CNT MSG %*s%s%*s IFLG OFFSET\n", 873 (PTRSTRWIDTH - 4) / 2, "", " LOC", (PTRSTRWIDTH - 4) / 2, "", 874 (PTRSTRWIDTH - 4) / 2, "", "DATA", (PTRSTRWIDTH - 4) / 2, ""); 875 for (ki = (struct kinfo_file *)offset; nfile--; ki++) { 876 if ((unsigned)ki->ki_ftype >= sizeof(dtypes) / sizeof(dtypes[0])) 877 continue; 878 ovflw = 0; 879 (void)getflags(filemode_flags, flags, ki->ki_flag); 880 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)ki->ki_fileaddr); 881 PRWORD(ovflw, " %-*s", 9, 1, dtypes[ki->ki_ftype]); 882 PRWORD(ovflw, " %*s", 6, 1, flags); 883 PRWORD(ovflw, " %*d", 5, 1, ki->ki_count); 884 PRWORD(ovflw, " %*d", 5, 1, ki->ki_msgcount); 885 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 2, (long)ki->ki_fdata); 886 PRWORD(ovflw, " %*x", 5, 1, 0); 887 if ((off_t)ki->ki_foffset < 0) 888 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 889 (long long)ki->ki_foffset); 890 else 891 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 892 (long long)ki->ki_foffset); 893 } 894 free(buf); 895 } 896 897 int 898 getfiles(char **abuf, int *alen, char **aoffset) 899 { 900 size_t len; 901 int mib[6]; 902 char *buf; 903 size_t offset; 904 905 /* 906 * XXX 907 * Add emulation of KINFO_FILE here. 908 */ 909 if (memf != NULL) 910 errx(1, "files on dead kernel, not implemented"); 911 912 mib[0] = CTL_KERN; 913 mib[1] = KERN_FILE2; 914 mib[2] = KERN_FILE_BYFILE; 915 mib[3] = 0; 916 mib[4] = sizeof(struct kinfo_file); 917 mib[5] = 0; 918 if (sysctl(mib, 6, NULL, &len, NULL, 0) == -1) { 919 warn("sysctl: KERN_FILE2"); 920 return (-1); 921 } 922 /* We need to align (struct kinfo_file *) in the buffer. */ 923 offset = len % sizeof(off_t); 924 mib[5] = len / sizeof(struct kinfo_file); 925 if ((buf = malloc(len + offset)) == NULL) 926 err(1, "malloc"); 927 if (sysctl(mib, 6, buf + offset, &len, NULL, 0) == -1) { 928 warn("sysctl: 2nd KERN_FILE2"); 929 free(buf); 930 return (-1); 931 } 932 *abuf = buf; 933 *alen = len; 934 *aoffset = (buf + offset); 935 return (0); 936 } 937 938 void 939 usage(void) 940 { 941 942 (void)fprintf(stderr, 943 "usage: %s [-T|-f|-s|-t|-v] [-ghkmn] [-M core] [-N system]\n", 944 getprogname()); 945 exit(1); 946 } 947
Indexes created Mon Sep 22 13:09:51 GMT 2025