pstat.c revision 1.110.4.2.4.1
1 /* $NetBSD: pstat.c,v 1.110.4.2.4.1 2010/04/21 05:27:22 matt 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 1.110.4.2.4.1 2010/04/21 05:27:22 matt 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" }, /* address of head of mount list. */ 89 #define V_NUMV 1 90 { "_numvnodes" }, 91 #define FNL_NFILE 2 92 { "_nfiles" }, 93 #define FNL_MAXFILE 3 94 { "_maxfiles" }, 95 #define TTY_NTTY 4 96 { "_tty_count" }, 97 #define TTY_TTYLIST 5 98 { "_ttylist" }, 99 #define NLMANDATORY TTY_TTYLIST /* names up to here are mandatory */ 100 { "" } 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 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), \ 310 sizeof((mp)->mnt_stat.f_fstypename)) == 0) 311 maddr = NULL; 312 vnode_fsprint = NULL; 313 for (evp = e_vnodebase; evp < endvnode; evp += VPTRSZ + VNODESZ) { 314 vp = (struct vnode *)(evp + VPTRSZ); 315 if (vp->v_mount != maddr) { 316 /* 317 * New filesystem 318 */ 319 if ((mp = getmnt(vp->v_mount)) == NULL) 320 continue; 321 maddr = vp->v_mount; 322 mount_print(mp); 323 vnode_header(); 324 if (FSTYPE_IS(mp, MOUNT_FFS) || 325 FSTYPE_IS(mp, MOUNT_MFS)) { 326 ufs_header(); 327 vnode_fsprint = ufs_print; 328 } else if (FSTYPE_IS(mp, MOUNT_NFS)) { 329 nfs_header(); 330 vnode_fsprint = nfs_print; 331 } else if (FSTYPE_IS(mp, MOUNT_EXT2FS)) { 332 ufs_header(); 333 vnode_fsprint = ext2fs_print; 334 } else if (FSTYPE_IS(mp, MOUNT_NULL) || 335 FSTYPE_IS(mp, MOUNT_OVERLAY) || 336 FSTYPE_IS(mp, MOUNT_UMAP)) { 337 layer_header(); 338 vnode_fsprint = layer_print; 339 } else 340 vnode_fsprint = NULL; 341 (void)printf("\n"); 342 } 343 ovflw = vnode_print(*(struct vnode **)evp, vp); 344 if (VTOI(vp) != NULL && vnode_fsprint != NULL) 345 (*vnode_fsprint)(vp, ovflw); 346 (void)printf("\n"); 347 } 348 349 out: 350 if (e_vnodebase) 351 free(e_vnodebase); 352 } 353 354 int 355 getflags(const struct flagbit_desc *fd, char *p, u_int flags) 356 { 357 char *q = p; 358 359 if (flags == 0) { 360 *p++ = '-'; 361 *p = '\0'; 362 return (0); 363 } 364 365 for (; fd->fd_flags != 0; fd++) 366 if ((flags & fd->fd_flags) != 0) 367 *p++ = fd->fd_mark; 368 *p = '\0'; 369 return (p - q); 370 } 371 372 const struct flagbit_desc vnode_flags[] = { 373 { VV_ROOT, 'R' }, 374 { VI_TEXT, 'T' }, 375 { VV_SYSTEM, 'S' }, 376 { VV_ISTTY, 'I' }, 377 { VI_EXECMAP, 'E' }, 378 { VI_XLOCK, 'L' }, 379 { VU_DIROP, 'D' }, 380 { VI_LAYER, 'Y' }, 381 { VI_ONWORKLST, 'O' }, 382 { 0, '\0' }, 383 }; 384 385 void 386 vnode_header(void) 387 { 388 389 (void)printf("%-*s TYP VFLAG USE HOLD TAG NPAGE", 390 PTRSTRWIDTH, "ADDR"); 391 } 392 393 int 394 vnode_print(struct vnode *avnode, struct vnode *vp) 395 { 396 char *type, flags[sizeof(vnode_flags) / sizeof(vnode_flags[0])]; 397 int ovflw; 398 399 /* 400 * set type 401 */ 402 switch (vp->v_type) { 403 case VNON: 404 type = "non"; break; 405 case VREG: 406 type = "reg"; break; 407 case VDIR: 408 type = "dir"; break; 409 case VBLK: 410 type = "blk"; break; 411 case VCHR: 412 type = "chr"; break; 413 case VLNK: 414 type = "lnk"; break; 415 case VSOCK: 416 type = "soc"; break; 417 case VFIFO: 418 type = "fif"; break; 419 case VBAD: 420 type = "bad"; break; 421 default: 422 type = "unk"; break; 423 } 424 /* 425 * gather flags 426 */ 427 (void)getflags(vnode_flags, flags, 428 vp->v_uflag | vp->v_iflag | vp->v_vflag); 429 430 ovflw = 0; 431 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)avnode); 432 PRWORD(ovflw, " %*s", 4, 1, type); 433 PRWORD(ovflw, " %*s", 6, 1, flags); 434 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_usecount); 435 PRWORD(ovflw, " %*ld", 5, 1, (long)vp->v_holdcnt); 436 PRWORD(ovflw, " %*d", 4, 1, vp->v_tag); 437 PRWORD(ovflw, " %*d", 6, 1, vp->v_uobj.uo_npages); 438 return (ovflw); 439 } 440 441 const struct flagbit_desc ufs_flags[] = { 442 { IN_ACCESS, 'A' }, 443 { IN_CHANGE, 'C' }, 444 { IN_UPDATE, 'U' }, 445 { IN_MODIFIED, 'M' }, 446 { IN_ACCESSED, 'a' }, 447 { IN_RENAME, 'R' }, 448 { IN_SHLOCK, 'S' }, 449 { IN_EXLOCK, 'E' }, 450 { IN_CLEANING, 'c' }, 451 { IN_ADIROP, 'D' }, 452 { IN_SPACECOUNTED, 's' }, 453 { 0, '\0' }, 454 }; 455 456 void 457 ufs_header(void) 458 { 459 460 (void)printf(" FILEID IFLAG RDEV|SZ"); 461 } 462 463 int 464 ufs_print(struct vnode *vp, int ovflw) 465 { 466 struct inode inode, *ip = &inode; 467 union dinode { 468 struct ufs1_dinode dp1; 469 struct ufs2_dinode dp2; 470 } dip; 471 struct ufsmount ump; 472 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 473 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 474 char *name; 475 mode_t type; 476 dev_t rdev; 477 478 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 479 KGETRET(ip->i_ump, &ump, sizeof(struct ufsmount), 480 "vnode's mount point"); 481 482 if (ump.um_fstype == UFS1) { 483 KGETRET(ip->i_din.ffs1_din, &dip, sizeof (struct ufs1_dinode), 484 "inode's dinode"); 485 rdev = dip.dp1.di_rdev; 486 } else { 487 KGETRET(ip->i_din.ffs2_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 struct ext2fs_dinode dip; 518 char flags[sizeof(ufs_flags) / sizeof(ufs_flags[0])]; 519 char dev[4 + 1 + 7 + 1]; /* 12bit marjor + 20bit minor */ 520 char *name; 521 mode_t type; 522 523 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 524 KGETRET(ip->i_din.e2fs_din, &dip, sizeof (struct ext2fs_dinode), 525 "inode's dinode"); 526 527 /* 528 * XXX need to to locking state. 529 */ 530 531 (void)getflags(ufs_flags, flags, ip->i_flag); 532 PRWORD(ovflw, " %*llu", 7, 1, (unsigned long long)ip->i_number); 533 PRWORD(ovflw, " %*s", 6, 1, flags); 534 type = dip.e2di_mode & S_IFMT; 535 if (S_ISCHR(dip.e2di_mode) || S_ISBLK(dip.e2di_mode)) { 536 if (usenumflag || 537 (name = devname(dip.e2di_rdev, type)) == NULL) { 538 snprintf(dev, sizeof(dev), "%d,%d", 539 major(dip.e2di_rdev), minor(dip.e2di_rdev)); 540 name = dev; 541 } 542 PRWORD(ovflw, " %*s", 8, 1, name); 543 } else 544 PRWORD(ovflw, " %*u", 8, 1, (u_int)dip.e2di_size); 545 return (0); 546 } 547 548 const struct flagbit_desc nfs_flags[] = { 549 { NFLUSHWANT, 'W' }, 550 { NFLUSHINPROG, 'P' }, 551 { NMODIFIED, 'M' }, 552 { NWRITEERR, 'E' }, 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 /* 623 * Given a pointer to a mount structure in kernel space, 624 * read it in and return a usable pointer to it. 625 */ 626 struct mount * 627 getmnt(struct mount *maddr) 628 { 629 static struct mtab { 630 struct mtab *next; 631 struct mount *maddr; 632 struct mount mount; 633 } *mhead = NULL; 634 struct mtab *mt; 635 struct mount mb; 636 637 for (mt = mhead; mt != NULL; mt = mt->next) 638 if (maddr == mt->maddr) 639 return (&mt->mount); 640 KGETRET(maddr, &mb, sizeof(struct mount), "mount table"); 641 if ((mt = malloc(sizeof(struct mtab))) == NULL) 642 err(1, "malloc"); 643 mt->mount = mb; 644 mt->maddr = maddr; 645 mt->next = mhead; 646 mhead = mt; 647 return (&mt->mount); 648 } 649 650 void 651 mount_print(struct mount *mp) 652 { 653 int flags; 654 655 (void)printf("*** MOUNT %s %s on %s", ST.f_fstypename, 656 ST.f_mntfromname, ST.f_mntonname); 657 if ((flags = mp->mnt_flag) != 0) { 658 int i; 659 const char *sep = " ("; 660 661 for (i = 0; i < sizeof mnt_flags / sizeof mnt_flags[0]; i++) { 662 if (flags & mnt_flags[i].m_flag) { 663 (void)printf("%s%s", sep, mnt_flags[i].m_name); 664 flags &= ~mnt_flags[i].m_flag; 665 sep = ","; 666 } 667 } 668 if (flags) 669 (void)printf("%sunknown_flags:%x", sep, flags); 670 (void)printf(")"); 671 } 672 (void)printf("\n"); 673 } 674 675 char * 676 loadvnodes(int *avnodes) 677 { 678 int mib[2]; 679 size_t copysize; 680 char *vnodebase; 681 682 if (totalflag) { 683 KGET(V_NUMV, *avnodes); 684 return NULL; 685 } 686 if (memf != NULL) { 687 /* 688 * do it by hand 689 */ 690 return (kinfo_vnodes(avnodes)); 691 } 692 mib[0] = CTL_KERN; 693 mib[1] = KERN_VNODE; 694 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 695 err(1, "sysctl: KERN_VNODE"); 696 if ((vnodebase = malloc(copysize)) == NULL) 697 err(1, "malloc"); 698 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 699 err(1, "sysctl: KERN_VNODE"); 700 if (copysize % (VPTRSZ + VNODESZ)) 701 errx(1, "vnode size mismatch"); 702 *avnodes = copysize / (VPTRSZ + VNODESZ); 703 704 return (vnodebase); 705 } 706 707 /* 708 * simulate what a running kernel does in in kinfo_vnode 709 */ 710 char * 711 kinfo_vnodes(int *avnodes) 712 { 713 struct mntlist mountlist; 714 struct mount *mp, mount; 715 struct vnode *vp, vnode; 716 char *beg, *bp, *ep; 717 int numvnodes; 718 719 KGET(V_NUMV, numvnodes); 720 if ((bp = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 721 err(1, "malloc"); 722 beg = bp; 723 ep = bp + (numvnodes + 20) * (VPTRSZ + VNODESZ); 724 KGET(V_MOUNTLIST, mountlist); 725 for (mp = mountlist.cqh_first;; 726 mp = mount.mnt_list.cqe_next) { 727 KGET2(mp, &mount, sizeof(mount), "mount entry"); 728 TAILQ_FOREACH(vp, &mount.mnt_vnodelist, v_mntvnodes) { 729 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 730 if (bp + VPTRSZ + VNODESZ > ep) 731 /* XXX - should realloc */ 732 errx(1, "no more room for vnodes"); 733 memmove(bp, &vp, VPTRSZ); 734 bp += VPTRSZ; 735 memmove(bp, &vnode, VNODESZ); 736 bp += VNODESZ; 737 } 738 if (mp == mountlist.cqh_last) 739 break; 740 } 741 *avnodes = (bp - beg) / (VPTRSZ + VNODESZ); 742 return (beg); 743 } 744 745 void 746 ttymode(void) 747 { 748 int ntty; 749 struct ttylist_head tty_head; 750 struct tty *tp, tty; 751 752 KGET(TTY_NTTY, ntty); 753 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 754 KGET(TTY_TTYLIST, tty_head); 755 (void)printf( 756 " LINE RAW CAN OUT HWT LWT COL STATE %-*s PGID DISC\n", 757 PTRSTRWIDTH, "SESS"); 758 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 759 KGET2(tp, &tty, sizeof tty, "tty struct"); 760 ttyprt(&tty); 761 } 762 } 763 764 static const struct flagbit_desc ttystates[] = { 765 { TS_ISOPEN, 'O'}, 766 { TS_DIALOUT, '>'}, 767 { TS_CARR_ON, 'C'}, 768 { TS_TIMEOUT, 'T'}, 769 { TS_FLUSH, 'F'}, 770 { TS_BUSY, 'B'}, 771 { TS_XCLUDE, 'X'}, 772 { TS_TTSTOP, 'S'}, 773 { TS_TBLOCK, 'K'}, 774 { TS_ASYNC, 'Y'}, 775 { TS_BKSL, 'D'}, 776 { TS_ERASE, 'E'}, 777 { TS_LNCH, 'L'}, 778 { TS_TYPEN, 'P'}, 779 { TS_CNTTB, 'N'}, 780 { 0, '\0'}, 781 }; 782 783 void 784 ttyprt(struct tty *tp) 785 { 786 char state[sizeof(ttystates) / sizeof(ttystates[0]) + 1]; 787 char dev[2 + 3 + 1 + 5 + 1]; /* 12bit major + 20bit minor */ 788 struct linesw t_linesw; 789 const char *name; 790 char buffer; 791 pid_t pgid; 792 int n, ovflw; 793 794 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) { 795 (void)snprintf(dev, sizeof(dev), "0x%3x:%x", 796 major(tp->t_dev), minor(tp->t_dev)); 797 name = dev; 798 } 799 ovflw = 0; 800 PRWORD(ovflw, "%-*s", 7, 0, name); 801 PRWORD(ovflw, " %*d", 3, 1, tp->t_rawq.c_cc); 802 PRWORD(ovflw, " %*d", 4, 1, tp->t_canq.c_cc); 803 PRWORD(ovflw, " %*d", 4, 1, tp->t_outq.c_cc); 804 PRWORD(ovflw, " %*d", 5, 1, tp->t_hiwat); 805 PRWORD(ovflw, " %*d", 4, 1, tp->t_lowat); 806 PRWORD(ovflw, " %*d", 8, 1, tp->t_column); 807 n = getflags(ttystates, state, tp->t_state); 808 if (tp->t_wopen) { 809 state[n++] = 'W'; 810 state[n] = '\0'; 811 } 812 PRWORD(ovflw, " %-*s", 7, 1, state); 813 PRWORD(ovflw, " %*lX", PTRSTRWIDTH + 1, 1, (u_long)tp->t_session); 814 pgid = 0; 815 if (tp->t_pgrp != NULL) 816 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 817 PRWORD(ovflw, " %*d", 6, 1, pgid); 818 KGET2(tp->t_linesw, &t_linesw, sizeof(t_linesw), 819 "line discipline switch table"); 820 name = t_linesw.l_name; 821 (void)putchar(' '); 822 for (;;) { 823 KGET2(name, &buffer, sizeof(buffer), "line discipline name"); 824 if (buffer == '\0') 825 break; 826 (void)putchar(buffer); 827 name++; 828 } 829 (void)putchar('\n'); 830 } 831 832 static const struct flagbit_desc filemode_flags[] = { 833 { FREAD, 'R' }, 834 { FWRITE, 'W' }, 835 { FAPPEND, 'A' }, 836 #ifdef FSHLOCK /* currently gone */ 837 { FSHLOCK, 'S' }, 838 { FEXLOCK, 'X' }, 839 #endif 840 { FASYNC, 'I' }, 841 { 0, '\0' }, 842 }; 843 844 void 845 filemode(void) 846 { 847 struct kinfo_file *ki; 848 char flags[sizeof(filemode_flags) / sizeof(filemode_flags[0])]; 849 char *buf, *offset; 850 int len, maxfile, nfile, ovflw; 851 852 KGET(FNL_MAXFILE, maxfile); 853 if (totalflag) { 854 KGET(FNL_NFILE, nfile); 855 (void)printf("%3d/%3d files\n", nfile, maxfile); 856 return; 857 } 858 if (getfiles(&buf, &len, &offset) == -1) 859 return; 860 /* 861 * Getfiles returns in malloc'd memory to an array of kinfo_file2 862 * structures. 863 */ 864 nfile = len / sizeof(struct kinfo_file); 865 866 (void)printf("%d/%d open files\n", nfile, maxfile); 867 (void)printf("%*s%s%*s TYPE FLG CNT MSG %*s%s%*s IFLG OFFSET\n", 868 (PTRSTRWIDTH - 4) / 2, "", " LOC", (PTRSTRWIDTH - 4) / 2, "", 869 (PTRSTRWIDTH - 4) / 2, "", "DATA", (PTRSTRWIDTH - 4) / 2, ""); 870 for (ki = (struct kinfo_file *)offset; nfile--; ki++) { 871 if ((unsigned)ki->ki_ftype >= sizeof(dtypes) / sizeof(dtypes[0])) 872 continue; 873 ovflw = 0; 874 (void)getflags(filemode_flags, flags, ki->ki_flag); 875 PRWORD(ovflw, "%*lx", PTRSTRWIDTH, 0, (long)ki->ki_fileaddr); 876 PRWORD(ovflw, " %-*s", 9, 1, dtypes[ki->ki_ftype]); 877 PRWORD(ovflw, " %*s", 6, 1, flags); 878 PRWORD(ovflw, " %*d", 5, 1, ki->ki_count); 879 PRWORD(ovflw, " %*d", 5, 1, ki->ki_msgcount); 880 PRWORD(ovflw, " %*lx", PTRSTRWIDTH + 1, 2, (long)ki->ki_fdata); 881 PRWORD(ovflw, " %*x", 5, 1, 0); 882 if (ki->ki_foffset < 0) 883 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 884 (long long)ki->ki_foffset); 885 else 886 PRWORD(ovflw, " %-*lld\n", PTRSTRWIDTH + 1, 2, 887 (long long)ki->ki_foffset); 888 } 889 free(buf); 890 } 891 892 int 893 getfiles(char **abuf, int *alen, char **aoffset) 894 { 895 size_t len; 896 int mib[6]; 897 char *buf; 898 size_t offset; 899 900 /* 901 * XXX 902 * Add emulation of KINFO_FILE here. 903 */ 904 if (memf != NULL) 905 errx(1, "files on dead kernel, not implemented"); 906 907 mib[0] = CTL_KERN; 908 mib[1] = KERN_FILE2; 909 mib[2] = KERN_FILE_BYFILE; 910 mib[3] = 0; 911 mib[4] = sizeof(struct kinfo_file); 912 mib[5] = 0; 913 if (sysctl(mib, 6, NULL, &len, NULL, 0) == -1) { 914 warn("sysctl: KERN_FILE2"); 915 return (-1); 916 } 917 /* We need to align (struct kinfo_file *) in the buffer. */ 918 offset = len % sizeof(off_t); 919 mib[5] = len / sizeof(struct kinfo_file); 920 if ((buf = malloc(len + offset)) == NULL) 921 err(1, "malloc"); 922 if (sysctl(mib, 6, buf + offset, &len, NULL, 0) == -1) { 923 warn("sysctl: 2nd KERN_FILE2"); 924 return (-1); 925 } 926 *abuf = buf; 927 *alen = len; 928 *aoffset = (buf + offset); 929 return (0); 930 } 931 932 void 933 usage(void) 934 { 935 936 (void)fprintf(stderr, 937 "usage: %s [-T|-f|-s|-t|-v] [-ghkmn] [-M core] [-N system]\n", 938 getprogname()); 939 exit(1); 940 } 941
Indexes created Fri Oct 17 03:10:13 GMT 2025