pstat.c revision 1.45
1 /* $NetBSD: pstat.c,v 1.45 1999/07/04 22:09:30 fvdl 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 1.45 1999/07/04 22:09:30 fvdl 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_EXRDONLY, "exrdonly" }, 127 { MNT_EXPORTED, "exported" }, 128 { MNT_DEFEXPORTED, "defexported" }, 129 { MNT_EXPORTANON, "exportanon" }, 130 { MNT_EXKERB, "exkerb" }, 131 { MNT_LOCAL, "local" }, 132 { MNT_QUOTA, "quota" }, 133 { MNT_ROOTFS, "rootfs" }, 134 { MNT_UPDATE, "update" }, 135 { MNT_DELEXPORT, "delexport" }, 136 { MNT_RELOAD, "reload" }, 137 { MNT_FORCE, "force" }, 138 { MNT_GONE, "gone" }, 139 { MNT_UNMOUNT, "unmount" }, 140 { MNT_WANTRDWR, "wantrdwr" }, 141 { 0 } 142 }; 143 144 145 #define SVAR(var) __STRING(var) /* to force expansion */ 146 #define KGET(idx, var) \ 147 KGET1(idx, &var, sizeof(var), SVAR(var)) 148 #define KGET1(idx, p, s, msg) \ 149 KGET2(nl[idx].n_value, p, s, msg) 150 #define KGET2(addr, p, s, msg) \ 151 if (kvm_read(kd, (u_long)(addr), p, s) != s) \ 152 warnx("cannot read %s: %s", msg, kvm_geterr(kd)) 153 #define KGETRET(addr, p, s, msg) \ 154 if (kvm_read(kd, (u_long)(addr), p, s) != s) { \ 155 warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \ 156 return (0); \ 157 } 158 159 void filemode __P((void)); 160 int getfiles __P((char **, int *)); 161 struct mount * 162 getmnt __P((struct mount *)); 163 struct e_vnode * 164 kinfo_vnodes __P((int *)); 165 struct e_vnode * 166 loadvnodes __P((int *)); 167 int main __P((int, char **)); 168 void mount_print __P((struct mount *)); 169 void nfs_header __P((void)); 170 int nfs_print __P((struct vnode *)); 171 void ttymode __P((void)); 172 void ttyprt __P((struct tty *)); 173 void ufs_getflags __P((struct vnode *, struct inode *, char *)); 174 void ufs_header __P((void)); 175 int ufs_print __P((struct vnode *)); 176 int ext2fs_print __P((struct vnode *)); 177 void union_header __P((void)); 178 int union_print __P((struct vnode *)); 179 void usage __P((void)); 180 void vnode_header __P((void)); 181 void vnode_print __P((struct vnode *, struct vnode *)); 182 void vnodemode __P((void)); 183 184 int 185 main(argc, argv) 186 int argc; 187 char *argv[]; 188 { 189 extern char *optarg; 190 extern int optind; 191 int ch, i, quit, ret; 192 int fileflag, swapflag, ttyflag, vnodeflag; 193 gid_t egid = getegid(); 194 char buf[_POSIX2_LINE_MAX]; 195 196 setegid(getgid()); 197 fileflag = swapflag = ttyflag = vnodeflag = 0; 198 while ((ch = getopt(argc, argv, "TM:N:fiknstv")) != -1) 199 switch (ch) { 200 case 'f': 201 fileflag = 1; 202 break; 203 case 'M': 204 memf = optarg; 205 break; 206 case 'N': 207 nlistf = optarg; 208 break; 209 case 'n': 210 usenumflag = 1; 211 break; 212 case 's': 213 swapflag = 1; 214 break; 215 case 'T': 216 totalflag = 1; 217 break; 218 case 't': 219 ttyflag = 1; 220 break; 221 case 'k': 222 kflag = 1; 223 break; 224 case 'v': 225 case 'i': /* Backward compatibility. */ 226 vnodeflag = 1; 227 break; 228 default: 229 usage(); 230 } 231 argc -= optind; 232 argv += optind; 233 234 /* 235 * Discard setgid privileges. If not the running kernel, we toss 236 * them away totally so that bad guys can't print interesting stuff 237 * from kernel memory, otherwise switch back to kmem for the 238 * duration of the kvm_openfiles() call. 239 */ 240 if (nlistf != NULL || memf != NULL) 241 (void)setgid(getgid()); 242 else 243 (void)setegid(egid); 244 245 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0) 246 errx(1, "kvm_openfiles: %s", buf); 247 248 /* get rid of it now anyway */ 249 if (nlistf == NULL && memf == NULL) 250 (void)setgid(getgid()); 251 if ((ret = kvm_nlist(kd, nl)) != 0) { 252 if (ret == -1) 253 errx(1, "kvm_nlist: %s", kvm_geterr(kd)); 254 for (i = quit = 0; i <= NLMANDATORY; i++) 255 if (!nl[i].n_value) { 256 quit = 1; 257 warnx("undefined symbol: %s", nl[i].n_name); 258 } 259 if (quit) 260 exit(1); 261 } 262 if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag)) 263 usage(); 264 if (fileflag || totalflag) 265 filemode(); 266 if (vnodeflag || totalflag) 267 vnodemode(); 268 if (ttyflag) 269 ttymode(); 270 if (swapflag || totalflag) 271 list_swap(0, kflag, 0, totalflag, 1); 272 exit (0); 273 } 274 275 struct e_vnode { 276 struct vnode *avnode; 277 struct vnode vnode; 278 }; 279 280 void 281 vnodemode() 282 { 283 struct e_vnode *e_vnodebase, *endvnode, *evp; 284 struct vnode *vp; 285 struct mount *maddr, *mp; 286 int numvnodes; 287 288 mp = NULL; 289 e_vnodebase = loadvnodes(&numvnodes); 290 if (totalflag) { 291 (void)printf("%7d vnodes\n", numvnodes); 292 return; 293 } 294 endvnode = e_vnodebase + numvnodes; 295 (void)printf("%d active vnodes\n", numvnodes); 296 297 298 #define ST mp->mnt_stat 299 maddr = NULL; 300 for (evp = e_vnodebase; evp < endvnode; evp++) { 301 vp = &evp->vnode; 302 if (vp->v_mount != maddr) { 303 /* 304 * New filesystem 305 */ 306 if ((mp = getmnt(vp->v_mount)) == NULL) 307 continue; 308 maddr = vp->v_mount; 309 mount_print(mp); 310 vnode_header(); 311 if (!strncmp(ST.f_fstypename, MOUNT_FFS, MFSNAMELEN) || 312 !strncmp(ST.f_fstypename, MOUNT_MFS, MFSNAMELEN)) 313 ufs_header(); 314 else if (!strncmp(ST.f_fstypename, MOUNT_NFS, 315 MFSNAMELEN)) 316 nfs_header(); 317 else if (!strncmp(ST.f_fstypename, MOUNT_EXT2FS, 318 MFSNAMELEN)) 319 ufs_header(); 320 else if (!strcmp(ST.f_fstypename, "union")) 321 union_header(); 322 (void)printf("\n"); 323 } 324 vnode_print(evp->avnode, vp); 325 if (!strncmp(ST.f_fstypename, MOUNT_FFS, MFSNAMELEN) || 326 !strncmp(ST.f_fstypename, MOUNT_MFS, MFSNAMELEN)) { 327 ufs_print(vp); 328 } else if (!strncmp(ST.f_fstypename, MOUNT_NFS, MFSNAMELEN)) { 329 nfs_print(vp); 330 } else if (!strncmp(ST.f_fstypename, MOUNT_EXT2FS, MFSNAMELEN)) { 331 ext2fs_print(vp); 332 } 333 (void)printf("\n"); 334 } 335 free(e_vnodebase); 336 } 337 338 void 339 vnode_header() 340 { 341 (void)printf("ADDR TYP VFLAG USE HOLD TAG"); 342 } 343 344 void 345 vnode_print(avnode, vp) 346 struct vnode *avnode; 347 struct vnode *vp; 348 { 349 char *type, flags[16]; 350 char *fp = flags; 351 int flag; 352 353 /* 354 * set type 355 */ 356 switch (vp->v_type) { 357 case VNON: 358 type = "non"; break; 359 case VREG: 360 type = "reg"; break; 361 case VDIR: 362 type = "dir"; break; 363 case VBLK: 364 type = "blk"; break; 365 case VCHR: 366 type = "chr"; break; 367 case VLNK: 368 type = "lnk"; break; 369 case VSOCK: 370 type = "soc"; break; 371 case VFIFO: 372 type = "fif"; break; 373 case VBAD: 374 type = "bad"; break; 375 default: 376 type = "unk"; break; 377 } 378 /* 379 * gather flags 380 */ 381 flag = vp->v_flag; 382 if (flag & VROOT) 383 *fp++ = 'R'; 384 if (flag & VTEXT) 385 *fp++ = 'T'; 386 if (flag & VSYSTEM) 387 *fp++ = 'S'; 388 if (flag & VISTTY) 389 *fp++ = 'I'; 390 if (flag & VXLOCK) 391 *fp++ = 'L'; 392 if (flag & VXWANT) 393 *fp++ = 'W'; 394 if (flag & VBWAIT) 395 *fp++ = 'B'; 396 if (flag & VALIASED) 397 *fp++ = 'A'; 398 if (flag & VDIROP) 399 *fp++ = 'D'; 400 if (flag == 0) 401 *fp++ = '-'; 402 *fp = '\0'; 403 (void)printf("%8lx %s %5s %4d %4ld %4d", 404 (long)avnode, type, flags, vp->v_usecount, (long)vp->v_holdcnt, 405 vp->v_tag); 406 } 407 408 void 409 ufs_getflags(vp, ip, flags) 410 struct vnode *vp; 411 struct inode *ip; 412 char *flags; 413 { 414 int flag; 415 416 /* 417 * XXX need to to locking state. 418 */ 419 420 flag = ip->i_flag; 421 if (flag & IN_RENAME) 422 *flags++ = 'R'; 423 if (flag & IN_UPDATE) 424 *flags++ = 'U'; 425 if (flag & IN_ACCESS) 426 *flags++ = 'A'; 427 if (flag & IN_CHANGE) 428 *flags++ = 'C'; 429 if (flag & IN_MODIFIED) 430 *flags++ = 'M'; 431 if (flag & IN_SHLOCK) 432 *flags++ = 'S'; 433 if (flag & IN_EXLOCK) 434 *flags++ = 'E'; 435 if (flag == 0) 436 *flags++ = '-'; 437 *flags = '\0'; 438 439 } 440 441 void 442 ufs_header() 443 { 444 (void)printf(" FILEID IFLAG RDEV|SZ"); 445 } 446 447 int 448 ufs_print(vp) 449 struct vnode *vp; 450 { 451 struct inode inode, *ip = &inode; 452 char flagbuf[16]; 453 char *name; 454 mode_t type; 455 456 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 457 ufs_getflags(vp, ip, flagbuf); 458 (void)printf(" %6d %5s", ip->i_number, flagbuf); 459 type = ip->i_ffs_mode & S_IFMT; 460 if (S_ISCHR(ip->i_ffs_mode) || S_ISBLK(ip->i_ffs_mode)) 461 if (usenumflag || ((name = devname(ip->i_ffs_rdev, type)) == NULL)) 462 (void)printf(" %2d,%-2d", 463 major(ip->i_ffs_rdev), minor(ip->i_ffs_rdev)); 464 else 465 (void)printf(" %7s", name); 466 else 467 (void)printf(" %7qd", (long long)ip->i_ffs_size); 468 return (0); 469 } 470 471 int 472 ext2fs_print(vp) 473 struct vnode *vp; 474 { 475 struct inode inode, *ip = &inode; 476 char flagbuf[16]; 477 char *name; 478 mode_t type; 479 480 KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode"); 481 ufs_getflags(vp, ip, flagbuf); 482 (void)printf(" %6d %5s", ip->i_number, flagbuf); 483 type = ip->i_e2fs_mode & S_IFMT; 484 if (S_ISCHR(ip->i_e2fs_mode) || S_ISBLK(ip->i_e2fs_mode)) 485 if (usenumflag || ((name = devname(ip->i_din.e2fs_din.e2di_rdev, 486 type)) == NULL)) 487 (void)printf(" %2d,%-2d", 488 major(ip->i_din.e2fs_din.e2di_rdev), 489 minor(ip->i_din.e2fs_din.e2di_rdev)); 490 else 491 (void)printf(" %7s", name); 492 else 493 (void)printf(" %7u", (u_int)ip->i_e2fs_size); 494 return (0); 495 } 496 497 void 498 nfs_header() 499 { 500 (void)printf(" FILEID NFLAG RDEV|SZ"); 501 } 502 503 int 504 nfs_print(vp) 505 struct vnode *vp; 506 { 507 struct nfsnode nfsnode, *np = &nfsnode; 508 char flagbuf[16], *flags = flagbuf; 509 int flag; 510 struct vattr va; 511 char *name; 512 mode_t type; 513 514 KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode"); 515 flag = np->n_flag; 516 if (flag & NFLUSHWANT) 517 *flags++ = 'W'; 518 if (flag & NFLUSHINPROG) 519 *flags++ = 'P'; 520 if (flag & NMODIFIED) 521 *flags++ = 'M'; 522 if (flag & NWRITEERR) 523 *flags++ = 'E'; 524 if (flag & NQNFSNONCACHE) 525 *flags++ = 'X'; 526 if (flag & NQNFSWRITE) 527 *flags++ = 'O'; 528 if (flag & NQNFSEVICTED) 529 *flags++ = 'G'; 530 if (flag == 0) 531 *flags++ = '-'; 532 *flags = '\0'; 533 534 KGETRET(np->n_vattr, &va, sizeof(va), "vnode attr"); 535 (void)printf(" %6ld %5s", (long)va.va_fileid, flagbuf); 536 type = va.va_mode & S_IFMT; 537 if (S_ISCHR(va.va_mode) || S_ISBLK(va.va_mode)) 538 if (usenumflag || ((name = devname(va.va_rdev, type)) == NULL)) 539 (void)printf(" %2d,%-2d", 540 major(va.va_rdev), minor(va.va_rdev)); 541 else 542 (void)printf(" %7s", name); 543 else 544 (void)printf(" %7qd", (long long)np->n_size); 545 return (0); 546 } 547 548 void 549 union_header() 550 { 551 (void)printf(" UPPER LOWER"); 552 } 553 554 int 555 union_print(vp) 556 struct vnode *vp; 557 { 558 struct union_node unode, *up = &unode; 559 560 KGETRET(VTOUNION(vp), &unode, sizeof(unode), "vnode's unode"); 561 562 (void)printf(" %8lx %8lx", (long)up->un_uppervp, (long)up->un_lowervp); 563 return (0); 564 } 565 566 /* 567 * Given a pointer to a mount structure in kernel space, 568 * read it in and return a usable pointer to it. 569 */ 570 struct mount * 571 getmnt(maddr) 572 struct mount *maddr; 573 { 574 static struct mtab { 575 struct mtab *next; 576 struct mount *maddr; 577 struct mount mount; 578 } *mhead = NULL; 579 struct mtab *mt; 580 581 for (mt = mhead; mt != NULL; mt = mt->next) 582 if (maddr == mt->maddr) 583 return (&mt->mount); 584 if ((mt = malloc(sizeof(struct mtab))) == NULL) 585 err(1, "malloc"); 586 KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table"); 587 mt->maddr = maddr; 588 mt->next = mhead; 589 mhead = mt; 590 return (&mt->mount); 591 } 592 593 void 594 mount_print(mp) 595 struct mount *mp; 596 { 597 int flags; 598 599 (void)printf("*** MOUNT %s %s on %s", ST.f_fstypename, 600 ST.f_mntfromname, ST.f_mntonname); 601 if ((flags = mp->mnt_flag) != 0) { 602 int i; 603 const char *sep = " ("; 604 605 for (i = 0; mnt_flags[i].m_flag; i++) { 606 if (flags & mnt_flags[i].m_flag) { 607 (void)printf("%s%s", sep, mnt_flags[i].m_name); 608 flags &= ~mnt_flags[i].m_flag; 609 sep = ","; 610 } 611 } 612 if (flags) 613 (void)printf("%sunknown_flags:%x", sep, flags); 614 (void)printf(")"); 615 } 616 (void)printf("\n"); 617 } 618 619 struct e_vnode * 620 loadvnodes(avnodes) 621 int *avnodes; 622 { 623 int mib[2]; 624 size_t copysize; 625 struct e_vnode *vnodebase; 626 627 if (memf != NULL) { 628 /* 629 * do it by hand 630 */ 631 return (kinfo_vnodes(avnodes)); 632 } 633 mib[0] = CTL_KERN; 634 mib[1] = KERN_VNODE; 635 if (sysctl(mib, 2, NULL, ©size, NULL, 0) == -1) 636 err(1, "sysctl: KERN_VNODE"); 637 if ((vnodebase = malloc(copysize)) == NULL) 638 err(1, "malloc"); 639 if (sysctl(mib, 2, vnodebase, ©size, NULL, 0) == -1) 640 err(1, "sysctl: KERN_VNODE"); 641 if (copysize % sizeof(struct e_vnode)) 642 errx(1, "vnode size mismatch"); 643 *avnodes = copysize / sizeof(struct e_vnode); 644 645 return (vnodebase); 646 } 647 648 /* 649 * simulate what a running kernel does in in kinfo_vnode 650 */ 651 struct e_vnode * 652 kinfo_vnodes(avnodes) 653 int *avnodes; 654 { 655 struct mntlist mountlist; 656 struct mount *mp, mount; 657 struct vnode *vp, vnode; 658 char *vbuf, *evbuf, *bp; 659 int num, numvnodes; 660 661 #define VPTRSZ sizeof(struct vnode *) 662 #define VNODESZ sizeof(struct vnode) 663 664 KGET(V_NUMV, numvnodes); 665 if ((vbuf = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL) 666 err(1, "malloc"); 667 bp = vbuf; 668 evbuf = vbuf + (numvnodes + 20) * (VPTRSZ + VNODESZ); 669 KGET(V_MOUNTLIST, mountlist); 670 for (num = 0, mp = mountlist.cqh_first; ; mp = mount.mnt_list.cqe_next) { 671 KGET2(mp, &mount, sizeof(mount), "mount entry"); 672 for (vp = mount.mnt_vnodelist.lh_first; 673 vp != NULL; vp = vnode.v_mntvnodes.le_next) { 674 KGET2(vp, &vnode, sizeof(vnode), "vnode"); 675 if ((bp + VPTRSZ + VNODESZ) > evbuf) 676 /* XXX - should realloc */ 677 errx(1, "no more room for vnodes"); 678 memmove(bp, &vp, VPTRSZ); 679 bp += VPTRSZ; 680 memmove(bp, &vnode, VNODESZ); 681 bp += VNODESZ; 682 num++; 683 } 684 if (mp == mountlist.cqh_last) 685 break; 686 } 687 *avnodes = num; 688 return ((struct e_vnode *)vbuf); 689 } 690 691 char hdr[]=" LINE RAW CAN OUT HWT LWT COL STATE SESS PGID DISC\n"; 692 int ttyspace = 128; 693 694 void 695 ttymode() 696 { 697 int ntty; 698 struct ttylist_head tty_head; 699 struct tty *tp, tty; 700 701 KGET(TTY_NTTY, ntty); 702 (void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s"); 703 KGET(TTY_TTYLIST, tty_head); 704 (void)printf(hdr); 705 for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) { 706 KGET2(tp, &tty, sizeof tty, "tty struct"); 707 ttyprt(&tty); 708 } 709 } 710 711 struct { 712 int flag; 713 char val; 714 } ttystates[] = { 715 { TS_ISOPEN, 'O'}, 716 { TS_DIALOUT, '>'}, 717 { TS_CARR_ON, 'C'}, 718 { TS_TIMEOUT, 'T'}, 719 { TS_FLUSH, 'F'}, 720 { TS_BUSY, 'B'}, 721 { TS_ASLEEP, 'A'}, 722 { TS_XCLUDE, 'X'}, 723 { TS_TTSTOP, 'S'}, 724 { TS_TBLOCK, 'K'}, 725 { TS_ASYNC, 'Y'}, 726 { TS_BKSL, 'D'}, 727 { TS_ERASE, 'E'}, 728 { TS_LNCH, 'L'}, 729 { TS_TYPEN, 'P'}, 730 { TS_CNTTB, 'N'}, 731 { 0, '\0'}, 732 }; 733 734 void 735 ttyprt(tp) 736 struct tty *tp; 737 { 738 int i, j; 739 pid_t pgid; 740 char *name, state[20]; 741 742 if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL) 743 (void)printf("0x%3x:%1x ", major(tp->t_dev), minor(tp->t_dev)); 744 else 745 (void)printf("%-7s ", name); 746 (void)printf("%2d %3d ", tp->t_rawq.c_cc, tp->t_canq.c_cc); 747 (void)printf("%3d %4d %3d %7d ", tp->t_outq.c_cc, 748 tp->t_hiwat, tp->t_lowat, tp->t_column); 749 for (i = j = 0; ttystates[i].flag; i++) 750 if (tp->t_state&ttystates[i].flag) 751 state[j++] = ttystates[i].val; 752 if (tp->t_wopen) 753 state[j++] = 'W'; 754 if (j == 0) 755 state[j++] = '-'; 756 state[j] = '\0'; 757 (void)printf("%-6s %8lX", state, (u_long)tp->t_session); 758 pgid = 0; 759 if (tp->t_pgrp != NULL) 760 KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid"); 761 (void)printf("%6d ", pgid); 762 switch (tp->t_line) { 763 case TTYDISC: 764 (void)printf("term\n"); 765 break; 766 case TABLDISC: 767 (void)printf("tab\n"); 768 break; 769 case SLIPDISC: 770 (void)printf("slip\n"); 771 break; 772 case PPPDISC: 773 (void)printf("ppp\n"); 774 break; 775 case STRIPDISC: 776 (void)printf("strip\n"); 777 break; 778 default: 779 (void)printf("%d\n", tp->t_line); 780 break; 781 } 782 } 783 784 void 785 filemode() 786 { 787 struct file *fp; 788 struct file *addr; 789 char *buf, flagbuf[16], *fbp; 790 int len, maxfile, nfile; 791 static char *dtypes[] = { "???", "inode", "socket" }; 792 793 KGET(FNL_MAXFILE, maxfile); 794 if (totalflag) { 795 KGET(FNL_NFILE, nfile); 796 (void)printf("%3d/%3d files\n", nfile, maxfile); 797 return; 798 } 799 if (getfiles(&buf, &len) == -1) 800 return; 801 /* 802 * Getfiles returns in malloc'd memory a pointer to the first file 803 * structure, and then an array of file structs (whose addresses are 804 * derivable from the previous entry). 805 */ 806 addr = ((struct filelist *)buf)->lh_first; 807 fp = (struct file *)(buf + sizeof(struct filelist)); 808 nfile = (len - sizeof(struct filelist)) / sizeof(struct file); 809 810 (void)printf("%d/%d open files\n", nfile, maxfile); 811 (void)printf(" LOC TYPE FLG CNT MSG DATA OFFSET\n"); 812 for (; (char *)fp < buf + len; addr = fp->f_list.le_next, fp++) { 813 if ((unsigned)fp->f_type > DTYPE_SOCKET) 814 continue; 815 (void)printf("%lx ", (long)addr); 816 (void)printf("%-8.8s", dtypes[fp->f_type]); 817 fbp = flagbuf; 818 if (fp->f_flag & FREAD) 819 *fbp++ = 'R'; 820 if (fp->f_flag & FWRITE) 821 *fbp++ = 'W'; 822 if (fp->f_flag & FAPPEND) 823 *fbp++ = 'A'; 824 #ifdef FSHLOCK /* currently gone */ 825 if (fp->f_flag & FSHLOCK) 826 *fbp++ = 'S'; 827 if (fp->f_flag & FEXLOCK) 828 *fbp++ = 'X'; 829 #endif 830 if (fp->f_flag & FASYNC) 831 *fbp++ = 'I'; 832 *fbp = '\0'; 833 (void)printf("%6s %3d", flagbuf, fp->f_count); 834 (void)printf(" %3d", fp->f_msgcount); 835 (void)printf(" %8.1lx", (long)fp->f_data); 836 if (fp->f_offset < 0) 837 (void)printf(" %qx\n", (long long)fp->f_offset); 838 else 839 (void)printf(" %qd\n", (long long)fp->f_offset); 840 } 841 free(buf); 842 } 843 844 int 845 getfiles(abuf, alen) 846 char **abuf; 847 int *alen; 848 { 849 size_t len; 850 int mib[2]; 851 char *buf; 852 853 /* 854 * XXX 855 * Add emulation of KINFO_FILE here. 856 */ 857 if (memf != NULL) 858 errx(1, "files on dead kernel, not implemented\n"); 859 860 mib[0] = CTL_KERN; 861 mib[1] = KERN_FILE; 862 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) { 863 warn("sysctl: KERN_FILE"); 864 return (-1); 865 } 866 if ((buf = malloc(len)) == NULL) 867 err(1, "malloc"); 868 if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) { 869 warn("sysctl: KERN_FILE"); 870 return (-1); 871 } 872 *abuf = buf; 873 *alen = len; 874 return (0); 875 } 876 877 void 878 usage() 879 { 880 (void)fprintf(stderr, 881 "usage: pstat [-T|-f|-s|-t|-v] [-kn] [-M core] [-N system]\n"); 882 exit(1); 883 } 884
Indexes created Tue Sep 23 14:10:03 GMT 2025