pstat.c revision 1.55
1 /* $NetBSD: pstat.c,v 1.55 2000/12/13 05:34:55 enami 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) Copyright (c) 1980, 1991, 1993, 1994\n\ 39 The Regents of the University of California. All rights reserved.\n"); 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)pstat.c 8.16 (Berkeley) 5/9/95"; 45 #else 46 __RCSID("$NetBSD: pstat.c,v 1.55 2000/12/13 05:34:55 enami Exp $"); 47 #endif 48 #endif /* not lint */ 49 50 #include <sys/param.h> 51 #include <sys/time.h> 52 #include <sys/vnode.h> 53 #include <sys/map.h> 54 #include <sys/ucred.h> 55 #define _KERNEL 56 #define _LKM 57 #include <sys/file.h> 58 #include <ufs/ufs/quota.h> 59 #include <ufs/ufs/inode.h> 60 #define NFS 61 #include <sys/mount.h> 62 #undef NFS 63 #include <sys/uio.h> 64 #include <sys/namei.h> 65 #include <miscfs/union/union.h> 66 #undef _KERNEL 67 #include <sys/stat.h> 68 #include <nfs/nfsproto.h> 69 #include <nfs/rpcv2.h> 70 #include <nfs/nfs.h> 71 #include <nfs/nfsnode.h> 72 #include <sys/ioctl.h> 73 #include <sys/tty.h> 74 #include <sys/conf.h> 75 #include <sys/device.h> 76 77 #include <sys/sysctl.h> 78 79 #include <err.h> 80 #include <kvm.h> 81 #include <limits.h> 82 #include <nlist.h> 83 #include <stdio.h> 84 #include <stdlib.h> 85 #include <string.h> 86 #include <unistd.h> 87 88 #include "swapctl.h" 89 90 struct nlist nl[] = { 91 #define V_MOUNTLIST 0 92 { "_mountlist" }, /* address of head of mount list. */ 93 #define V_NUMV 1 94 { "_numvnodes" }, 95 #define FNL_NFILE 2 96 { "_nfiles" }, 97 #define FNL_MAXFILE 3 98 { "_maxfiles" }, 99 #define TTY_NTTY 4 100 { "_tty_count" }, 101 #define TTY_TTYLIST 5 102 { "_ttylist" }, 103 #define NLMANDATORY TTY_TTYLIST /* names up to here are mandatory */ 104 { "" } 105 }; 106 107 int usenumflag; 108 int totalflag; 109 int kflag; 110 char *nlistf = NULL; 111 char *memf = NULL; 112 kvm_t *kd; 113 114 struct { 115 int m_flag; 116 const char *m_name; 117 } mnt_flags[] = { 118 { MNT_RDONLY, "rdonly" }, 119 { MNT_SYNCHRONOUS, "sync" }, 120 { MNT_NOEXEC, "noexec" }, 121 { MNT_NOSUID, "nosuid" }, 122 { MNT_NODEV, "nodev" }, 123 { MNT_UNION, "union" }, 124 { MNT_ASYNC, "async" }, 125 { MNT_NOCOREDUMP, "nocoredump" }, 126 { MNT_NOATIME, "noatime" }, 127 { MNT_SYMPERM, "symperm" }, 128 { MNT_NODEVMTIME, "nodevmtime" }, 129 { MNT_SOFTDEP, "softdep" }, 130 { MNT_EXRDONLY, "exrdonly" }, 131 { MNT_EXPORTED, "exported" }, 132 { MNT_DEFEXPORTED, "defexported" }, 133 { MNT_EXPORTANON, "exportanon" }, 134 { MNT_EXKERB, "exkerb" }, 135 { MNT_EXNORESPORT, "exnoresport" }, 136 { MNT_EXPUBLIC, "expublic" }, 137 { MNT_LOCAL, "local" }, 138 { MNT_QUOTA, "quota" }, 139 { MNT_ROOTFS, "rootfs" }, 140 { MNT_UPDATE, "update" }, 141 { MNT_DELEXPORT, "delexport" }, 142 { MNT_RELOAD, "reload" }, 143 { MNT_FORCE, "force" }, 144 { MNT_GONE, "gone" }, 145 { MNT_UNMOUNT, "unmount" }, 146 { MNT_WANTRDWR, "wantrdwr" }, 147 { 0 } 148 }; 149 150 #define SVAR(var) __STRING(var) /* to force expansion */ 151 #define KGET(idx, var) \ 152 KGET1(idx, &var, sizeof(var), SVAR(var)) 153 #define KGET1(idx, p, s, msg) \ 154 KGET2(nl[idx].n_value, p, s, msg) 155 #define KGET2(addr, p, s, msg) \ 156 if (kvm_read(kd, (u_long)(addr), p, s) != s) \ 157 warnx("cannot read %s: %s", msg, kvm_geterr(kd)) 158 #define KGETRET(addr, p, s, msg) \ 159 if (kvm_read(kd, (u_long)(addr), p, s) != s) { \ 160 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 161 return (0); \ 162 } 163 164 void filemode __P((void)); 165 int getfiles __P((char **, int *)); 166 struct mount * 167 getmnt __P((struct mount *)); 168 struct e_vnode * 169 kinfo_vnodes __P((int *)); 170 struct e_vnode * 171 loadvnodes __P((int *)); 172 int main __P((int, char **)); 173 void mount_print __P((struct mount *)); 174 void nfs_header __P((void)); 175 int nfs_print __P((struct vnode *)); 176 void ttymode __P((void)); 177 void ttyprt __P((struct tty *)); 178 void ufs_getflags __P((struct vnode *, struct inode *, char *)); 179 void ufs_header __P((void)); 180 int ufs_print __P((struct vnode *)); 181 int ext2fs_print __P((struct vnode *)); 182 void union_header __P((void)); 183 int union_print __P((struct vnode *)); 184 void usage __P((void)); 185 void vnode_header __P((void)); 186 void vnode_print __P((struct vnode *, struct vnode *)); 187 void vnodemode __P((void)); 188 189 int 190 main(argc, argv) 191 int argc; 192 char *argv[]; 193 { 194 int ch, i, quit, ret; 195 int fileflag, swapflag, ttyflag, vnodeflag; 196 gid_t egid = getegid(); 197 char buf[_POSIX2_LINE_MAX]; 198 199 setegid(getgid()); 200 fileflag = swapflag = ttyflag = vnodeflag = 0; 201 while ((ch = getopt(argc, argv, "TM:N:fiknstv")) != -1) 202 switch (ch) { 203 case 'f': 204 fileflag = 1; 205 break; 206 case 'M': 207 memf = optarg; 208 break; 209 case 'N': 210 nlistf = optarg; 211 break; 212 case 'n': 213 usenumflag = 1; 214 break; 215 case 's': 216 swapflag = 1; 217 break; 218 case 'T': 219 totalflag = 1; 220 break; 221 case 't': 222 ttyflag = 1; 223 break; 224 case 'k': 225 kflag = 1; 226 break; 227 case 'v': 228 case 'i': /* Backward compatibility. */ 229 vnodeflag = 1; 230 break; 231 default: 232 usage(); 233 } 234 argc -= optind; 235 argv += optind; 236 237 /* 238 * Discard setgid privileges. If not the running kernel, we toss 239 * them away totally so that bad guys can't print interesting stuff 240 * from kernel memory, otherwise switch back to kmem for the 241 * duration of the kvm_openfiles() call. 242 */ 243 if (nlistf != NULL || memf != NULL) 244 (void)setgid(getgid()); 245 else 246 (void)setegid(egid); 247 248 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0) 249 errx(1, "kvm_openfiles: %s", buf); 250 251 /* get rid of it now anyway */ 252 if (nlistf == NULL && memf == NULL) 253 (void)setgid(getgid()); 254 if ((ret = kvm_nlist(kd, nl)) != 0) { 255 if (ret == -1) 256 errx(1, "kvm_nlist: %s", kvm_geterr(kd)); 257 for (i = quit = 0; i <= NLMANDATORY; i++) 258 if (!nl[i].n_value) { 259 quit = 1; 260 warnx("undefined symbol: %s", nl[i].n_name); 261 } 262 if (quit) 263 exit(1); 264 } 265 if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag)) 266 usage(); 267 if (fileflag || totalflag) 268 filemode(); 269 if (vnodeflag || totalflag) 270 vnodemode(); 271 if (ttyflag) 272 ttymode(); 273 if (swapflag || totalflag) 274 list_swap(0, kflag, 0, totalflag, 1); 275 exit (0); 276 } 277 278 struct e_vnode { 279 struct vnode *avnode; 280 struct vnode vnode; 281 }; 282 283 void 284 vnodemode() 285 { 286 struct e_vnode *e_vnodebase, *endvnode, *evp; 287 struct vnode *vp; 288 struct mount *maddr, *mp; 289 int numvnodes; 290 int (*vnode_fsprint) __P((struct vnode *)); /* per-fs data printer */ 291 292 mp = NULL; 293 e_vnodebase = loadvnodes(&numvnodes); 294 if (totalflag) { 295 (void)printf("%7d vnodes\n", numvnodes); 296 return; 297 } 298 endvnode = e_vnodebase + numvnodes; 299 (void)printf("%d active vnodes\n", numvnodes); 300 301 #define ST mp->mnt_stat 302 #define FSTYPE_IS(mp, name) \ 303 (strncmp((mp)->mnt_stat.f_fstypename, (name), MFSNAMELEN) == 0) 304 maddr = NULL; 305 vnode_fsprint = NULL; 306 for (evp = e_vnodebase; evp < endvnode; evp++) { 307 vp = &evp->vnode; 308 if (vp->v_mount != maddr) { 309 /* 310 * New filesystem 311 */ 312 if ((mp = getmnt(vp->v_mount)) == NULL) 313 continue; 314 maddr = vp->v_mount; 315 mount_print(mp); 316 vnode_header(); 317 if (FSTYPE_IS(mp, MOUNT_FFS) || 318 FSTYPE_IS(mp, MOUNT_MFS)) { 319 ufs_header(); 320 vnode_fsprint = ufs_print; 321 } else if (FSTYPE_IS(mp, MOUNT_NFS)) { 322 nfs_header(); 323 vnode_fsprint = nfs_print; 324 } else if (FSTYPE_IS(mp, MOUNT_EXT2FS)) { 325 ufs_header(); 326 vnode_fsprint = ext2fs_print; 327 } else if (FSTYPE_IS(mp, MOUNT_UNION)) { 328 union_header(); 329 vnode_fsprint = union_print; 330 } else 331 vnode_fsprint = NULL; 332 (void)printf("\n"); 333 } 334 vnode_print(evp->avnode, vp); 335 if (VTOI(vp) != NULL && vnode_fsprint != NULL) 336 (*vnode_fsprint)(vp); 337 (void)printf("\n"); 338 } 339 free(e_vnodebase); 340 } 341 342 void 343 vnode_header() 344 { 345 346 (void)printf("ADDR TYP VFLAG USE HOLD TAG"); 347 } 348 349 void 350 vnode_print(avnode, vp) 351 struct vnode *avnode; 352 struct vnode *vp; 353 { 354 char *type, flags[16]; 355 char *fp = flags; 356 int flag; 357 358 /* 359 * set type 360 */ 361 switch (vp->v_type) { 362 case VNON: 363 type = "non"; break; 364 case VREG: 365 type = "reg"; break; 366 case VDIR: 367 type = "dir"; break; 368 case VBLK: 369 type = "blk"; break; 370 case VCHR: 371 type = "chr"; break; 372 case VLNK: 373 type = "lnk"; break; 374 case VSOCK: 375 type = "soc"; break; 376 case VFIFO: 377 type = "fif"; break; 378 case VBAD: 379 type = "bad"; break; 380 default: 381 type = "unk"; break; 382 } 383 /* 384 * gather flags 385 */ 386 flag = vp->v_flag; 387 if (flag & VROOT) 388 *fp++ = 'R'; 389 if (flag & VTEXT) 390 *fp++ = 'T'; 391 if (flag & VSYSTEM) 392 *fp++ = 'S'; 393 if (flag & VISTTY) 394 *fp++ = 'I'; 395 if (flag & VXLOCK) 396 *fp++ = 'L'; 397 if (flag & VXWANT) 398 *fp++ = 'W'; 399 if (flag & VBWAIT) 400 *fp++ = 'B'; 401 if (flag & VALIASED) 402 *fp++ = 'A'; 403 if (flag & VDIROP) 404 *fp++ = 'D'; 405 if (flag & VLAYER) 406 *fp++ = 'Y'; 407 if (flag & VONWORKLST) 408 *fp++ = 'O'; 409 if (flag == 0) 410 *fp++ = '-'; 411 *fp = '\0'; 412 (void)printf("%8lx %s %5s %4ld %4ld %3d", 413 (long)avnode, type, flags, (long)vp->v_usecount, 414 (long)vp->v_holdcnt, vp->v_tag); 415 } 416 417 void 418 ufs_getflags(vp, ip, flags) 419 struct vnode *vp; 420 struct inode *ip; 421 char *flags; 422 { 423 int flag; 424 425 /* 426 * XXX need to to locking state. 427 */ 428 429 flag = ip->i_flag; 430 if (flag & IN_ACCESS) 431 *flags++ = 'A'; 432 if (flag & IN_CHANGE) 433 *flags++ = 'C'; 434 if (flag & IN_UPDATE) 435 *flags++ = 'U'; 436 if (flag & IN_MODIFIED) 437 *flags++ = 'M'; 438 if (flag & IN_ACCESSED) 439 *flags++ = 'a'; 440 if (flag & IN_RENAME) 441 *flags++ = 'R'; 442 if (flag & IN_SHLOCK) 443 *flags++ = 'S'; 444 if (flag & IN_EXLOCK) 445 *flags++ = 'E'; 446 if (flag & IN_CLEANING) 447 *flags++ = 'c'; 448 if (flag & IN_ADIROP) 449 *flags++ = 'a'; 450 if (flag == 0) 451 *flags++ = '-'; 452 *flags = '\0'; 453 454 } 455 456 void 457 ufs_header() 458 { 459 460 (void)printf(" FILEID IFLAG RDEV|SZ"); 461 } 462 463 int 464 ufs_print(vp) 465 struct vnode *vp; 466 { 467 struct inode inode, *ip = &inode; 468 char flagbuf[16]; 469 char *name; 470 mode_t type; 471 472 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 473 ufs_getflags(vp, ip, flagbuf); 474 (void)printf(" %6d %5s", ip->i_number, flagbuf); 475 type = ip->i_ffs_mode & S_IFMT; 476 if (S_ISCHR(ip->i_ffs_mode) || S_ISBLK(ip->i_ffs_mode)) 477 if (usenumflag || 478 ((name = devname(ip->i_ffs_rdev, type)) == NULL)) 479 (void)printf(" %2d,%-2d", 480 major(ip->i_ffs_rdev), minor(ip->i_ffs_rdev)); 481 else 482 (void)printf(" %7s", name); 483 else 484 (void)printf(" %7qd", (long long)ip->i_ffs_size); 485 return (0); 486 } 487 488 int 489 ext2fs_print(vp) 490 struct vnode *vp; 491 { 492 struct inode inode, *ip = &inode; 493 char flagbuf[16]; 494 char *name; 495 mode_t type; 496 497 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 498 ufs_getflags(vp, ip, flagbuf); 499 (void)printf(" %6d %5s", ip->i_number, flagbuf); 500 type = ip->i_e2fs_mode & S_IFMT; 501 if (S_ISCHR(ip->i_e2fs_mode) || S_ISBLK(ip->i_e2fs_mode)) 502 if (usenumflag || 503 ((name = devname(ip->i_e2fs_rdev, type)) == NULL)) 504 (void)printf(" %2d,%-2d", 505 major(ip->i_e2fs_rdev), minor(ip->i_e2fs_rdev)); 506 else 507 (void)printf(" %7s", name); 508 else 509 (void)printf(" %7u", (u_int)ip->i_e2fs_size); 510 return (0); 511 } 512 513 void 514 nfs_header() 515 { 516 517 (void)printf(" FILEID NFLAG RDEV|SZ"); 518 } 519 520 int 521 nfs_print(vp) 522 struct vnode *vp; 523 { 524 struct nfsnode nfsnode, *np = &nfsnode; 525 char flagbuf[16], *flags = flagbuf; 526 int flag; 527 struct vattr va; 528 char *name; 529 mode_t type; 530 531 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 532 flag = np->n_flag; 533 if (flag & NFLUSHWANT) 534 *flags++ = 'W'; 535 if (flag & NFLUSHINPROG) 536 *flags++ = 'P'; 537 if (flag & NMODIFIED) 538 *flags++ = 'M'; 539 if (flag & NWRITEERR) 540 *flags++ = 'E'; 541 if (flag & NQNFSNONCACHE) 542 *flags++ = 'X'; 543 if (flag & NQNFSWRITE) 544 *flags++ = 'O'; 545 if (flag & NQNFSEVICTED) 546 *flags++ = 'G'; 547 if (flag & NACC) 548 *flags++ = 'A'; 549 if (flag & NUPD) 550 *flags++ = 'U'; 551 if (flag & NCHG) 552 *flags++ = 'C'; 553 if (flag == 0) 554 *flags++ = '-'; 555 *flags = '\0'; 556 557 KGETRET(np->n_vattr, &va, sizeof(va), "vnode attr"); 558 (void)printf(" %6ld %5s", (long)va.va_fileid, flagbuf); 559 switch (va.va_type) { 560 case VCHR: 561 type = S_IFCHR; 562 goto device; 563 564 case VBLK: 565 type = S_IFBLK; 566 device: 567 if (usenumflag || ((name = devname(va.va_rdev, type)) == NULL)) 568 (void)printf(" %2d,%-2d", 569 major(va.va_rdev), minor(va.va_rdev)); 570 else 571 (void)printf(" %7s", name); 572 break; 573 default: 574 (void)printf(" %7qd", (long long)np->n_size); 575 break; 576 } 577 return (0); 578 } 579 580 void 581 union_header() 582 { 583 584 (void)printf(" UPPER LOWER"); 585 } 586 587 int 588 union_print(vp) 589 struct vnode *vp; 590 { 591 struct union_node unode, *up = &unode; 592 593 KGETRET(VTOUNION(vp), &unode, sizeof(unode), "vnode's unode"); 594 595 (void)printf(" %8lx %8lx", (long)up->un_uppervp, (long)up->un_lowervp); 596 return (0); 597 } 598 599 /* 600 * Given a pointer to a mount structure in kernel space, 601 * read it in and return a usable pointer to it. 602 */ 603 struct mount * 604 getmnt(maddr) 605 struct mount *maddr; 606 { 607 static struct mtab { 608 struct mtab *next; 609 struct mount *maddr; 610 struct mount mount; 611 } *mhead = NULL; 612 struct mtab *mt; 613 614 for (mt = mhead; mt != NULL; mt = mt->next) 615 if (maddr == mt->maddr) 616 return (&mt->mount); 617 if ((mt = malloc(sizeof(struct mtab))) == NULL) 618 err(1, "malloc"); 619 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 620 mt->maddr = maddr; 621 mt->next = mhead; 622 mhead = mt; 623 return (&mt->mount); 624 } 625 626 void 627 mount_print(mp) 628 struct mount *mp; 629 { 630 int flags; 631 632 (void)printf("*** MOUNT %s %s on %s", ST.f_fstypename, 633 ST.f_mntfromname, ST.f_mntonname); 634 if ((flags = mp->mnt_flag) != 0) { 635 int i; 636 const char *sep = " ("; 637 638 for (i = 0; mnt_flags[i].m_flag; i++) { 639 if (flags & mnt_flags[i].m_flag) { 640 (void)printf("%s%s", sep, mnt_flags[i].m_name); 641 flags &= ~mnt_flags[i].m_flag; 642 sep = ","; 643 } 644 } 645 if (flags) 646 (void)printf("%sunknown_flags:%x", sep, flags); 647 (void)printf(")"); 648 } 649 (void)printf("\n"); 650 } 651 652 struct e_vnode * 653 loadvnodes(avnodes) 654 int *avnodes; 655 { 656 int mib[2]; 657 size_t copysize; 658 struct e_vnode *vnodebase; 659 660 if (memf != NULL) { 661 /* 662 * do it by hand 663 */ 664 return (kinfo_vnodes(avnodes)); 665 } 666 mib[0] = CTL_KERN; 667 mib[1] = KERN_VNODE; 668 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 669 err(1, "sysctl: KERN_VNODE"); 670 if ((vnodebase = malloc(copysize)) == NULL) 671 err(1, "malloc"); 672 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 673 err(1, "sysctl: KERN_VNODE"); 674 if (copysize % sizeof(struct e_vnode)) 675 errx(1, "vnode size mismatch"); 676 *avnodes = copysize / sizeof(struct e_vnode); 677 678 return (vnodebase); 679 } 680 681 /* 682 * simulate what a running kernel does in in kinfo_vnode 683 */ 684 struct e_vnode * 685 kinfo_vnodes(avnodes) 686 int *avnodes; 687 { 688 struct mntlist mountlist; 689 struct mount *mp, mount; 690 struct vnode *vp, vnode; 691 char *vbuf, *evbuf, *bp; 692 int num, numvnodes; 693 694 #define VPTRSZ sizeof(struct vnode *) 695 #define VNODESZ sizeof(struct vnode) 696 697 KGET(V_NUMV, numvnodes); 698 if ((vbuf = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 699 err(1, "malloc"); 700 bp = vbuf; 701 evbuf = vbuf + (numvnodes + 20) * (VPTRSZ + VNODESZ); 702 KGET(V_MOUNTLIST, mountlist); 703 for (num = 0, mp = mountlist.cqh_first;; 704 mp = mount.mnt_list.cqe_next) { 705 KGET2(mp, &mount, sizeof(mount), "mount entry"); 706 for (vp = mount.mnt_vnodelist.lh_first; 707 vp != NULL; vp = vnode.v_mntvnodes.le_next) { 708 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 709 if ((bp + VPTRSZ + VNODESZ) > evbuf) 710 /* XXX - should realloc */ 711 errx(1, "no more room for vnodes"); 712 memmove(bp, &vp, VPTRSZ); 713 bp += VPTRSZ; 714 memmove(bp, &vnode, VNODESZ); 715 bp += VNODESZ; 716 num++; 717 } 718 if (mp == mountlist.cqh_last) 719 break; 720 } 721 *avnodes = num; 722 return ((struct e_vnode *)vbuf); 723 } 724 725 const char hdr[]=" LINE RAW CAN OUT HWT LWT COL STATE SESS PGID DISC\n"; 726 int ttyspace = 128; 727 728 void 729 ttymode() 730 { 731 int ntty; 732 struct ttylist_head tty_head; 733 struct tty *tp, tty; 734 735 KGET(TTY_NTTY, ntty); 736 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 737 KGET(TTY_TTYLIST, tty_head); 738 (void)printf(hdr); 739 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 740 KGET2(tp, &tty, sizeof tty, "tty struct"); 741 ttyprt(&tty); 742 } 743 } 744 745 struct { 746 int flag; 747 char val; 748 } ttystates[] = { 749 { TS_ISOPEN, 'O'}, 750 { TS_DIALOUT, '>'}, 751 { TS_CARR_ON, 'C'}, 752 { TS_TIMEOUT, 'T'}, 753 { TS_FLUSH, 'F'}, 754 { TS_BUSY, 'B'}, 755 { TS_ASLEEP, 'A'}, 756 { TS_XCLUDE, 'X'}, 757 { TS_TTSTOP, 'S'}, 758 { TS_TBLOCK, 'K'}, 759 { TS_ASYNC, 'Y'}, 760 { TS_BKSL, 'D'}, 761 { TS_ERASE, 'E'}, 762 { TS_LNCH, 'L'}, 763 { TS_TYPEN, 'P'}, 764 { TS_CNTTB, 'N'}, 765 { 0, '\0'}, 766 }; 767 768 void 769 ttyprt(tp) 770 struct tty *tp; 771 { 772 int i, j; 773 pid_t pgid; 774 char *name, state[20], buffer; 775 struct linesw t_linesw; 776 777 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) 778 (void)printf("0x%3x:%1x ", major(tp->t_dev), minor(tp->t_dev)); 779 else 780 (void)printf("%-7s ", name); 781 (void)printf("%2d %3d ", tp->t_rawq.c_cc, tp->t_canq.c_cc); 782 (void)printf("%3d %4d %3d %7d ", tp->t_outq.c_cc, 783 tp->t_hiwat, tp->t_lowat, tp->t_column); 784 for (i = j = 0; ttystates[i].flag; i++) 785 if (tp->t_state&ttystates[i].flag) 786 state[j++] = ttystates[i].val; 787 if (tp->t_wopen) 788 state[j++] = 'W'; 789 if (j == 0) 790 state[j++] = '-'; 791 state[j] = '\0'; 792 (void)printf("%-6s %8lX", state, (u_long)tp->t_session); 793 pgid = 0; 794 if (tp->t_pgrp != NULL) 795 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 796 (void)printf("%6d ", pgid); 797 KGET2(tp->t_linesw, &t_linesw, sizeof(t_linesw), 798 "line discipline switch table"); 799 name = t_linesw.l_name; 800 for (;;) { 801 KGET2(name, &buffer, sizeof(buffer), "line discipline name"); 802 if (buffer == '\0') 803 break; 804 (void)putchar(buffer); 805 name++; 806 } 807 (void)putchar('\n'); 808 } 809 810 void 811 filemode() 812 { 813 struct file *fp; 814 struct file *addr; 815 char *buf, flagbuf[16], *fbp; 816 int len, maxfile, nfile; 817 static char *dtypes[] = { "???", "inode", "socket" }; 818 819 KGET(FNL_MAXFILE, maxfile); 820 if (totalflag) { 821 KGET(FNL_NFILE, nfile); 822 (void)printf("%3d/%3d files\n", nfile, maxfile); 823 return; 824 } 825 if (getfiles(&buf, &len) == -1) 826 return; 827 /* 828 * Getfiles returns in malloc'd memory a pointer to the first file 829 * structure, and then an array of file structs (whose addresses are 830 * derivable from the previous entry). 831 */ 832 addr = ((struct filelist *)buf)->lh_first; 833 fp = (struct file *)(buf + sizeof(struct filelist)); 834 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 835 836 (void)printf("%d/%d open files\n", nfile, maxfile); 837 (void)printf(" LOC TYPE FLG CNT MSG DATA OFFSET\n"); 838 for (; (char *)fp < buf + len; addr = fp->f_list.le_next, fp++) { 839 if ((unsigned)fp->f_type > DTYPE_SOCKET) 840 continue; 841 (void)printf("%lx ", (long)addr); 842 (void)printf("%-8.8s", dtypes[fp->f_type]); 843 fbp = flagbuf; 844 if (fp->f_flag & FREAD) 845 *fbp++ = 'R'; 846 if (fp->f_flag & FWRITE) 847 *fbp++ = 'W'; 848 if (fp->f_flag & FAPPEND) 849 *fbp++ = 'A'; 850 #ifdef FSHLOCK /* currently gone */ 851 if (fp->f_flag & FSHLOCK) 852 *fbp++ = 'S'; 853 if (fp->f_flag & FEXLOCK) 854 *fbp++ = 'X'; 855 #endif 856 if (fp->f_flag & FASYNC) 857 *fbp++ = 'I'; 858 *fbp = '\0'; 859 (void)printf("%6s %3d", flagbuf, fp->f_count); 860 (void)printf(" %3d", fp->f_msgcount); 861 (void)printf(" %8.1lx", (long)fp->f_data); 862 if (fp->f_offset < 0) 863 (void)printf(" %qx\n", (long long)fp->f_offset); 864 else 865 (void)printf(" %qd\n", (long long)fp->f_offset); 866 } 867 free(buf); 868 } 869 870 int 871 getfiles(abuf, alen) 872 char **abuf; 873 int *alen; 874 { 875 size_t len; 876 int mib[2]; 877 char *buf; 878 879 /* 880 * XXX 881 * Add emulation of KINFO_FILE here. 882 */ 883 if (memf != NULL) 884 errx(1, "files on dead kernel, not implemented\n"); 885 886 mib[0] = CTL_KERN; 887 mib[1] = KERN_FILE; 888 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 889 warn("sysctl: KERN_FILE"); 890 return (-1); 891 } 892 if ((buf = malloc(len)) == NULL) 893 err(1, "malloc"); 894 if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) { 895 warn("sysctl: KERN_FILE"); 896 return (-1); 897 } 898 *abuf = buf; 899 *alen = len; 900 return (0); 901 } 902 903 void 904 usage() 905 { 906 907 (void)fprintf(stderr, 908 "usage: pstat [-T|-f|-s|-t|-v] [-kn] [-M core] [-N system]\n"); 909 exit(1); 910 } 911
Indexes created Tue Sep 23 14:10:03 GMT 2025