sysctl.c revision 1.37.2.4
1 /* $NetBSD: sysctl.c,v 1.37.2.4 2002/11/10 20:00:45 itojun Exp $ */ 2 3 /* 4 * Copyright (c) 1993 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( 39 "@(#) Copyright (c) 1993\n\ 40 The Regents of the University of California. All rights reserved.\n"); 41 #endif /* not lint */ 42 43 #ifndef lint 44 #if 0 45 static char sccsid[] = "@(#)sysctl.c 8.1 (Berkeley) 6/6/93"; 46 #else 47 __RCSID("$NetBSD: sysctl.c,v 1.37.2.4 2002/11/10 20:00:45 itojun Exp $"); 48 #endif 49 #endif /* not lint */ 50 51 #include <sys/param.h> 52 #include <sys/gmon.h> 53 #include <sys/stat.h> 54 #include <sys/sysctl.h> 55 #include <sys/socket.h> 56 #include <sys/mount.h> 57 #include <sys/mbuf.h> 58 #include <sys/resource.h> 59 #include <vm/vm_param.h> 60 #include <machine/cpu.h> 61 62 #include <ufs/ufs/dinode.h> 63 #include <ufs/ufs/dir.h> 64 #include <ufs/ffs/fs.h> 65 #include <ufs/ffs/ffs_extern.h> 66 67 #include <nfs/rpcv2.h> 68 #include <nfs/nfsproto.h> 69 #include <nfs/nfs.h> 70 71 #include <netinet/in.h> 72 #include <netinet/in_systm.h> 73 #include <netinet/ip.h> 74 #include <netinet/ip_icmp.h> 75 #include <netinet/icmp_var.h> 76 #include <netinet/ip_var.h> 77 #include <netinet/udp.h> 78 #include <netinet/udp_var.h> 79 #include <netinet/tcp.h> 80 #include <netinet/tcp_timer.h> 81 #include <netinet/tcp_var.h> 82 83 #ifdef INET6 84 #include <netinet/ip6.h> 85 #include <netinet/icmp6.h> 86 #include <netinet6/ip6_var.h> 87 #include <netinet6/udp6.h> 88 #include <netinet6/udp6_var.h> 89 #ifdef TCP6 90 #include <netinet6/tcp6.h> 91 #include <netinet6/tcp6_timer.h> 92 #include <netinet6/tcp6_var.h> 93 #endif 94 #include <netinet6/pim6_var.h> 95 #endif /* INET6 */ 96 97 #ifdef IPSEC 98 #include <net/route.h> 99 #include <netinet6/ipsec.h> 100 #include <netkey/key_var.h> 101 #endif /* IPSEC */ 102 103 #include <err.h> 104 #include <ctype.h> 105 #include <errno.h> 106 #include <stdio.h> 107 #include <stdlib.h> 108 #include <string.h> 109 #include <unistd.h> 110 #include <util.h> 111 112 struct ctlname topname[] = CTL_NAMES; 113 struct ctlname kernname[] = CTL_KERN_NAMES; 114 struct ctlname vmname[] = CTL_VM_NAMES; 115 struct ctlname vfsname[] = CTL_VFS_NAMES; 116 struct ctlname netname[] = CTL_NET_NAMES; 117 struct ctlname hwname[] = CTL_HW_NAMES; 118 struct ctlname username[] = CTL_USER_NAMES; 119 struct ctlname ddbname[] = CTL_DDB_NAMES; 120 struct ctlname debugname[CTL_DEBUG_MAXID]; 121 #ifdef CTL_MACHDEP_NAMES 122 struct ctlname machdepname[] = CTL_MACHDEP_NAMES; 123 #endif 124 /* this one is dummy, it's used only for '-a' or '-A' */ 125 struct ctlname procname[] = { {0, 0}, {"curproc", CTLTYPE_NODE} }; 126 127 char names[BUFSIZ]; 128 129 struct list { 130 struct ctlname *list; 131 int size; 132 }; 133 struct list toplist = { topname, CTL_MAXID }; 134 struct list secondlevel[] = { 135 { 0, 0 }, /* CTL_UNSPEC */ 136 { kernname, KERN_MAXID }, /* CTL_KERN */ 137 { vmname, VM_MAXID }, /* CTL_VM */ 138 { vfsname, VFS_MAXID }, /* CTL_VFS */ 139 { netname, NET_MAXID }, /* CTL_NET */ 140 { 0, CTL_DEBUG_MAXID }, /* CTL_DEBUG */ 141 { hwname, HW_MAXID }, /* CTL_HW */ 142 #ifdef CTL_MACHDEP_NAMES 143 { machdepname, CPU_MAXID }, /* CTL_MACHDEP */ 144 #else 145 { 0, 0 }, /* CTL_MACHDEP */ 146 #endif 147 { username, USER_MAXID }, /* CTL_USER_NAMES */ 148 { ddbname, DDBCTL_MAXID }, /* CTL_DDB_NAMES */ 149 { procname, 2 }, /* dummy name */ 150 }; 151 152 int Aflag, aflag, nflag, wflag; 153 154 /* 155 * Variables requiring special processing. 156 */ 157 #define CLOCK 0x00000001 158 #define BOOTTIME 0x00000002 159 #define CONSDEV 0x00000004 160 #define DISKINFO 0x00000008 161 #define CPTIME 0x00000010 162 163 /* 164 * A dummy type for limits, which requires special parsing 165 */ 166 #define CTLTYPE_LIMIT ((~0x1) << 31) 167 168 int main __P((int, char *[])); 169 170 static void listall __P((const char *, struct list *)); 171 static void parse __P((char *, int)); 172 static void debuginit __P((void)); 173 static int sysctl_inet __P((char *, char **, int[], int, int *)); 174 #ifdef INET6 175 static int sysctl_inet6 __P((char *, char **, int[], int, int *)); 176 #endif 177 #ifdef IPSEC 178 static int sysctl_key __P((char *, char **, int[], int, int *)); 179 #endif 180 static int sysctl_vfs __P((char *, char **, int[], int, int *)); 181 static int sysctl_vfsgen __P((char *, char **, int[], int, int *)); 182 static int sysctl_mbuf __P((char *, char **, int[], int, int *)); 183 static int sysctl_proc __P((char *, char **, int[], int, int *)); 184 static int findname __P((char *, char *, char **, struct list *)); 185 static void usage __P((void)); 186 187 int 188 main(argc, argv) 189 int argc; 190 char *argv[]; 191 { 192 char *fn = NULL; 193 int ch, lvl1; 194 195 while ((ch = getopt(argc, argv, "Aaf:nw")) != -1) { 196 switch (ch) { 197 198 case 'A': 199 Aflag = 1; 200 break; 201 202 case 'a': 203 aflag = 1; 204 break; 205 206 case 'f': 207 fn = optarg; 208 wflag = 1; 209 break; 210 211 case 'n': 212 nflag = 1; 213 break; 214 215 case 'w': 216 wflag = 1; 217 break; 218 219 default: 220 usage(); 221 } 222 } 223 argc -= optind; 224 argv += optind; 225 226 if (Aflag || aflag) { 227 debuginit(); 228 for (lvl1 = 1; lvl1 < CTL_MAXID; lvl1++) 229 listall(topname[lvl1].ctl_name, &secondlevel[lvl1]); 230 return 0; 231 } 232 233 if (fn) { 234 FILE *fp; 235 char *l; 236 237 fp = fopen(fn, "r"); 238 if (fp == NULL) { 239 err(1, "%s", fn); 240 } else { 241 for (; (l = fparseln(fp, NULL, NULL, NULL, 0)) != NULL; 242 free(l)) { 243 if (*l) 244 parse(l, 1); 245 } 246 fclose(fp); 247 } 248 } else { 249 if (argc == 0) 250 usage(); 251 while (argc-- > 0) 252 parse(*argv++, 1); 253 } 254 return 0; 255 } 256 257 /* 258 * List all variables known to the system. 259 */ 260 static void 261 listall(prefix, lp) 262 const char *prefix; 263 struct list *lp; 264 { 265 int lvl2; 266 char *cp, name[BUFSIZ]; 267 268 if (lp->list == 0) 269 return; 270 strcpy(name, prefix); 271 cp = &name[strlen(name)]; 272 *cp++ = '.'; 273 for (lvl2 = 0; lvl2 < lp->size; lvl2++) { 274 if (lp->list[lvl2].ctl_name == 0) 275 continue; 276 strcpy(cp, lp->list[lvl2].ctl_name); 277 parse(name, Aflag); 278 } 279 } 280 281 /* 282 * Parse a name into a MIB entry. 283 * Lookup and print out the MIB entry if it exists. 284 * Set a new value if requested. 285 */ 286 static void 287 parse(string, flags) 288 char *string; 289 int flags; 290 { 291 int indx, type, state, len; 292 int special = 0; 293 void *newval = 0; 294 int intval, newsize = 0; 295 quad_t quadval; 296 size_t size; 297 struct list *lp; 298 int mib[CTL_MAXNAME]; 299 char *cp, *bufp, buf[BUFSIZ]; 300 301 bufp = buf; 302 snprintf(buf, BUFSIZ, "%s", string); 303 if ((cp = strchr(string, '=')) != NULL) { 304 if (!wflag) 305 errx(2, "Must specify -w to set variables"); 306 *strchr(buf, '=') = '\0'; 307 *cp++ = '\0'; 308 while (isspace((unsigned char) *cp)) 309 cp++; 310 newval = cp; 311 newsize = strlen(cp); 312 } 313 if ((indx = findname(string, "top", &bufp, &toplist)) == -1) 314 return; 315 mib[0] = indx; 316 if (indx == CTL_DEBUG) 317 debuginit(); 318 if (mib[0] == CTL_PROC) { 319 type = CTLTYPE_NODE; 320 len = 1; 321 } else { 322 lp = &secondlevel[indx]; 323 if (lp->list == 0) { 324 warnx("Class `%s' is not implemented", 325 topname[indx].ctl_name); 326 return; 327 } 328 if (bufp == NULL) { 329 listall(topname[indx].ctl_name, lp); 330 return; 331 } 332 if ((indx = findname(string, "second", &bufp, lp)) == -1) 333 return; 334 mib[1] = indx; 335 type = lp->list[indx].ctl_type; 336 len = 2; 337 } 338 switch (mib[0]) { 339 340 case CTL_KERN: 341 switch (mib[1]) { 342 case KERN_PROF: 343 mib[2] = GPROF_STATE; 344 size = sizeof state; 345 if (sysctl(mib, 3, &state, &size, NULL, 0) < 0) { 346 if (flags == 0) 347 return; 348 if (!nflag) 349 printf("%s: ", string); 350 warnx("Kernel is not compiled for profiling"); 351 return; 352 } 353 if (!nflag) 354 printf("%s: %s\n", string, 355 state == GMON_PROF_OFF ? "off" : "running"); 356 return; 357 case KERN_VNODE: 358 case KERN_FILE: 359 if (flags == 0) 360 return; 361 warnx("Use pstat to view %s information", string); 362 return; 363 case KERN_PROC: 364 case KERN_PROC2: 365 case KERN_PROC_ARGS: 366 if (flags == 0) 367 return; 368 warnx("Use ps to view %s information", string); 369 return; 370 case KERN_CLOCKRATE: 371 special |= CLOCK; 372 break; 373 case KERN_BOOTTIME: 374 special |= BOOTTIME; 375 break; 376 case KERN_NTPTIME: 377 if (flags == 0) 378 return; 379 warnx("Use xntpdc -c kerninfo to view %s information", 380 string); 381 return; 382 case KERN_MBUF: 383 len = sysctl_mbuf(string, &bufp, mib, flags, &type); 384 if (len < 0) 385 return; 386 break; 387 case KERN_CP_TIME: 388 special |= CPTIME; 389 break; 390 case KERN_MSGBUF: 391 if (flags == 0) 392 return; 393 warnx("Use dmesg to view %s information", string); 394 return; 395 case KERN_CONSDEV: 396 special |= CONSDEV; 397 break; 398 } 399 break; 400 401 case CTL_HW: 402 break; 403 404 case CTL_VM: 405 if (mib[1] == VM_LOADAVG) { 406 double loads[3]; 407 408 getloadavg(loads, 3); 409 if (!nflag) 410 printf("%s: ", string); 411 printf("%.2f %.2f %.2f\n", loads[0], loads[1], 412 loads[2]); 413 return; 414 } 415 if (mib[1] == VM_NKMEMPAGES) { 416 size_t nkmempages_len; 417 int nkmempages; 418 419 nkmempages_len = sizeof(nkmempages); 420 421 if (sysctl(mib, 2, &nkmempages, &nkmempages_len, 422 NULL, 0)) { 423 warn("unable to get %s", string); 424 return; 425 } 426 if (!nflag) 427 printf("%s: ", string); 428 printf("%d\n", nkmempages); 429 } 430 if (flags == 0) 431 return; 432 warnx("Use vmstat or systat to view %s information", string); 433 return; 434 435 case CTL_NET: 436 if (mib[1] == PF_INET) { 437 len = sysctl_inet(string, &bufp, mib, flags, &type); 438 if (len >= 0) 439 break; 440 return; 441 } 442 #ifdef INET6 443 else if (mib[1] == PF_INET6) { 444 len = sysctl_inet6(string, &bufp, mib, flags, &type); 445 if (len >= 0) 446 break; 447 return; 448 } 449 #endif /* INET6 */ 450 #ifdef IPSEC 451 else if (mib[1] == PF_KEY) { 452 len = sysctl_key(string, &bufp, mib, flags, &type); 453 if (len >= 0) 454 break; 455 return; 456 } 457 #endif /* IPSEC */ 458 if (flags == 0) 459 return; 460 warnx("Use netstat to view %s information", string); 461 return; 462 463 case CTL_DEBUG: 464 mib[2] = CTL_DEBUG_VALUE; 465 len = 3; 466 break; 467 468 case CTL_MACHDEP: 469 #ifdef CPU_CONSDEV 470 if (mib[1] == CPU_CONSDEV) 471 special |= CONSDEV; 472 #endif 473 #ifdef CPU_DISKINFO 474 if (mib[1] == CPU_DISKINFO) 475 special |= DISKINFO; 476 #endif 477 break; 478 479 case CTL_VFS: 480 if (mib[1] == VFS_GENERIC) 481 len = sysctl_vfsgen(string, &bufp, mib, flags, &type); 482 else 483 len = sysctl_vfs(string, &bufp, mib, flags, &type); 484 if (len < 0) 485 return; 486 487 /* XXX Special-case for NFS stats. */ 488 if (mib[1] == 2 && mib[2] == NFS_NFSSTATS) { 489 if (flags == 0) 490 return; 491 warnx("Use nfsstat to view %s information", string); 492 return; 493 } 494 break; 495 496 case CTL_USER: 497 case CTL_DDB: 498 break; 499 case CTL_PROC: 500 len = sysctl_proc(string, &bufp, mib, flags, &type); 501 if (len < 0) 502 return; 503 break; 504 default: 505 warnx("Illegal top level value: %d", mib[0]); 506 return; 507 508 } 509 if (bufp) { 510 warnx("Name %s in %s is unknown", bufp, string); 511 return; 512 } 513 if (newsize > 0) { 514 switch (type) { 515 case CTLTYPE_INT: 516 intval = atoi(newval); 517 newval = &intval; 518 newsize = sizeof intval; 519 break; 520 521 case CTLTYPE_LIMIT: 522 if (strcmp(newval, "unlimited") == 0) { 523 quadval = RLIM_INFINITY; 524 newval = &quadval; 525 newsize = sizeof quadval; 526 break; 527 } 528 /* FALLTHROUGH */ 529 case CTLTYPE_QUAD: 530 sscanf(newval, "%qd", (long long *)&quadval); 531 newval = &quadval; 532 newsize = sizeof quadval; 533 break; 534 } 535 } 536 size = BUFSIZ; 537 if (sysctl(mib, len, buf, &size, newsize ? newval : 0, newsize) == -1) { 538 if (flags == 0) 539 return; 540 switch (errno) { 541 case EOPNOTSUPP: 542 warnx("The value of %s is not available", string); 543 return; 544 case ENOTDIR: 545 warnx("The specification of %s is incomplete", 546 string); 547 return; 548 case ENOMEM: 549 warnx("The type %s is unknown to this program", 550 string); 551 return; 552 default: 553 warn("sysctl() for %s failed", string); 554 return; 555 } 556 } 557 if (special & CLOCK) { 558 struct clockinfo *clkp = (struct clockinfo *)buf; 559 560 if (!nflag) 561 printf("%s: ", string); 562 printf( 563 "tick = %d, tickadj = %d, hz = %d, profhz = %d, stathz = %d\n", 564 clkp->tick, clkp->tickadj, clkp->hz, clkp->profhz, clkp->stathz); 565 return; 566 } 567 if (special & BOOTTIME) { 568 struct timeval *btp = (struct timeval *)buf; 569 time_t boottime; 570 571 if (!nflag) { 572 boottime = btp->tv_sec; 573 /* ctime() provides the trailing newline */ 574 printf("%s = %s", string, ctime(&boottime)); 575 } else 576 printf("%ld\n", (long) btp->tv_sec); 577 return; 578 } 579 if (special & CONSDEV) { 580 dev_t dev = *(dev_t *)buf; 581 582 if (!nflag) 583 printf("%s = %s\n", string, devname(dev, S_IFCHR)); 584 else 585 printf("0x%x\n", dev); 586 return; 587 } 588 if (special & DISKINFO) { 589 /* Don't know a good way to deal with this i386 specific one */ 590 return; 591 } 592 if (special & CPTIME) { 593 u_int64_t *cp_time = (u_int64_t *)buf; 594 595 if (!nflag) 596 printf("%s: ", string); 597 printf("user = %llu, nice = %llu, sys = %llu, intr = %llu, " 598 "idle = %llu\n", (unsigned long long) cp_time[0], 599 (unsigned long long) cp_time[1], 600 (unsigned long long) cp_time[2], 601 (unsigned long long) cp_time[3], 602 (unsigned long long) cp_time[4]); 603 return; 604 } 605 606 switch (type) { 607 case CTLTYPE_INT: 608 if (newsize == 0) { 609 if (!nflag) 610 printf("%s = ", string); 611 printf("%d\n", *(int *)buf); 612 } else { 613 if (!nflag) 614 printf("%s: %d -> ", string, *(int *)buf); 615 printf("%d\n", *(int *)newval); 616 } 617 return; 618 619 case CTLTYPE_STRING: 620 /* If sysctl() didn't return any data, don't print a string. */ 621 if (size == 0) 622 buf[0] = '\0'; 623 if (newsize == 0) { 624 if (!nflag) 625 printf("%s = ", string); 626 printf("%s\n", buf); 627 } else { 628 if (!nflag) 629 printf("%s: %s -> ", string, buf); 630 printf("%s\n", (char *) newval); 631 } 632 return; 633 634 case CTLTYPE_LIMIT: 635 #define PRINTF_LIMIT(lim) { \ 636 if ((lim) == RLIM_INFINITY) \ 637 printf("unlimited");\ 638 else \ 639 printf("%qd", (lim)); \ 640 } 641 642 if (newsize == 0) { 643 if (!nflag) 644 printf("%s = ", string); 645 PRINTF_LIMIT((long long)(*(quad_t *)buf)); 646 } else { 647 if (!nflag) { 648 printf("%s: ", string); 649 PRINTF_LIMIT((long long)(*(quad_t *)buf)); 650 printf(" -> "); 651 } 652 PRINTF_LIMIT((long long)(*(quad_t *)newval)); 653 } 654 printf("\n"); 655 return; 656 #undef PRINTF_LIMIT 657 658 case CTLTYPE_QUAD: 659 if (newsize == 0) { 660 if (!nflag) 661 printf("%s = ", string); 662 printf("%qd\n", (long long)(*(quad_t *)buf)); 663 } else { 664 if (!nflag) 665 printf("%s: %qd -> ", string, 666 (long long)(*(quad_t *)buf)); 667 printf("%qd\n", (long long)(*(quad_t *)newval)); 668 } 669 return; 670 671 case CTLTYPE_STRUCT: 672 warnx("%s: unknown structure returned", string); 673 return; 674 675 default: 676 case CTLTYPE_NODE: 677 warnx("%s: unknown type returned", string); 678 return; 679 } 680 } 681 682 /* 683 * Initialize the set of debugging names 684 */ 685 static void 686 debuginit() 687 { 688 int mib[3], loc, i; 689 size_t size; 690 691 if (secondlevel[CTL_DEBUG].list != 0) 692 return; 693 secondlevel[CTL_DEBUG].list = debugname; 694 mib[0] = CTL_DEBUG; 695 mib[2] = CTL_DEBUG_NAME; 696 for (loc = 0, i = 0; i < CTL_DEBUG_MAXID; i++) { 697 mib[1] = i; 698 size = BUFSIZ - loc; 699 if (sysctl(mib, 3, &names[loc], &size, NULL, 0) == -1) 700 continue; 701 debugname[i].ctl_name = &names[loc]; 702 debugname[i].ctl_type = CTLTYPE_INT; 703 loc += size; 704 } 705 } 706 707 struct ctlname inetname[] = CTL_IPPROTO_NAMES; 708 struct ctlname ipname[] = IPCTL_NAMES; 709 struct ctlname icmpname[] = ICMPCTL_NAMES; 710 struct ctlname tcpname[] = TCPCTL_NAMES; 711 struct ctlname udpname[] = UDPCTL_NAMES; 712 #ifdef IPSEC 713 struct ctlname ipsecname[] = IPSECCTL_NAMES; 714 #endif 715 struct list inetlist = { inetname, IPPROTO_MAXID }; 716 struct list inetvars[] = { 717 /*0*/ { ipname, IPCTL_MAXID }, /* ip */ 718 { icmpname, ICMPCTL_MAXID }, /* icmp */ 719 { 0, 0 }, /* igmp */ 720 { 0, 0 }, /* ggmp */ 721 { 0, 0 }, 722 { 0, 0 }, 723 { tcpname, TCPCTL_MAXID }, /* tcp */ 724 { 0, 0 }, 725 { 0, 0 }, /* egp */ 726 { 0, 0 }, 727 /*10*/ { 0, 0 }, 728 { 0, 0 }, 729 { 0, 0 }, /* pup */ 730 { 0, 0 }, 731 { 0, 0 }, 732 { 0, 0 }, 733 { 0, 0 }, 734 { udpname, UDPCTL_MAXID }, /* udp */ 735 { 0, 0 }, 736 { 0, 0 }, 737 /*20*/ { 0, 0 }, 738 { 0, 0 }, 739 { 0, 0 }, /* idp */ 740 { 0, 0 }, 741 { 0, 0 }, 742 { 0, 0 }, 743 { 0, 0 }, 744 { 0, 0 }, 745 { 0, 0 }, 746 { 0, 0 }, 747 /*30*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 748 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 749 /*40*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 750 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 751 #ifdef IPSEC 752 { ipsecname, IPSECCTL_MAXID }, /* esp - for backward compatibility */ 753 { ipsecname, IPSECCTL_MAXID }, /* ah */ 754 #else 755 { 0, 0 }, 756 { 0, 0 }, 757 #endif 758 }; 759 760 /* 761 * handle internet requests 762 */ 763 static int 764 sysctl_inet(string, bufpp, mib, flags, typep) 765 char *string; 766 char **bufpp; 767 int mib[]; 768 int flags; 769 int *typep; 770 { 771 struct list *lp; 772 int indx; 773 774 if (*bufpp == NULL) { 775 listall(string, &inetlist); 776 return (-1); 777 } 778 if ((indx = findname(string, "third", bufpp, &inetlist)) == -1) 779 return (-1); 780 mib[2] = indx; 781 if (indx <= IPPROTO_MAXID && inetvars[indx].list != NULL) 782 lp = &inetvars[indx]; 783 else if (!flags) 784 return (-1); 785 else { 786 warnx("No variables defined for protocol %s", string); 787 return (-1); 788 } 789 if (*bufpp == NULL) { 790 listall(string, lp); 791 return (-1); 792 } 793 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 794 return (-1); 795 mib[3] = indx; 796 *typep = lp->list[indx].ctl_type; 797 return (4); 798 } 799 800 #ifdef INET6 801 struct ctlname inet6name[] = CTL_IPV6PROTO_NAMES; 802 struct ctlname ip6name[] = IPV6CTL_NAMES; 803 struct ctlname icmp6name[] = ICMPV6CTL_NAMES; 804 #ifdef TCP6 805 struct ctlname tcp6name[] = TCP6CTL_NAMES; 806 #endif 807 struct ctlname udp6name[] = UDP6CTL_NAMES; 808 struct ctlname pim6name[] = PIM6CTL_NAMES; 809 struct ctlname ipsec6name[] = IPSEC6CTL_NAMES; 810 struct list inet6list = { inet6name, IPV6PROTO_MAXID }; 811 struct list inet6vars[] = { 812 /*0*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 813 { 0, 0 }, 814 #ifdef TCP6 815 { tcp6name, TCP6CTL_MAXID }, /* tcp6 */ 816 #else 817 { 0, 0 }, 818 #endif 819 { 0, 0 }, 820 { 0, 0 }, 821 { 0, 0 }, 822 /*10*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 823 { 0, 0 }, 824 { 0, 0 }, 825 { udp6name, UDP6CTL_MAXID }, /* udp6 */ 826 { 0, 0 }, 827 { 0, 0 }, 828 /*20*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 829 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 830 /*30*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 831 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 832 /*40*/ { 0, 0 }, 833 { ip6name, IPV6CTL_MAXID }, /* ipv6 */ 834 { 0, 0 }, 835 { 0, 0 }, 836 { 0, 0 }, 837 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 838 #ifdef IPSEC 839 /*50*/ { ipsec6name, IPSECCTL_MAXID }, /* esp6 - for backward compatibility */ 840 { ipsec6name, IPSECCTL_MAXID }, /* ah6 */ 841 #else 842 { 0, 0 }, 843 { 0, 0 }, 844 #endif 845 { 0, 0 }, 846 { 0, 0 }, 847 { 0, 0 }, 848 { 0, 0 }, 849 { 0, 0 }, 850 { 0, 0 }, 851 { icmp6name, ICMPV6CTL_MAXID }, /* icmp6 */ 852 { 0, 0 }, 853 /*60*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 854 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 855 /*70*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 856 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 857 /*80*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 858 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 859 /*90*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 860 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 861 /*100*/ { 0, 0 }, 862 { 0, 0 }, 863 { 0, 0 }, 864 { pim6name, PIM6CTL_MAXID }, /* pim6 */ 865 }; 866 867 /* 868 * handle internet6 requests 869 */ 870 static int 871 sysctl_inet6(string, bufpp, mib, flags, typep) 872 char *string; 873 char **bufpp; 874 int mib[]; 875 int flags; 876 int *typep; 877 { 878 struct list *lp; 879 int indx; 880 881 if (*bufpp == NULL) { 882 listall(string, &inet6list); 883 return (-1); 884 } 885 if ((indx = findname(string, "third", bufpp, &inet6list)) == -1) 886 return (-1); 887 mib[2] = indx; 888 if (indx <= sizeof(inet6vars)/sizeof(inet6vars[0]) 889 && inet6vars[indx].list != NULL) { 890 lp = &inet6vars[indx]; 891 } else if (!flags) { 892 return (-1); 893 } else { 894 fprintf(stderr, "%s: no variables defined for this protocol\n", 895 string); 896 return (-1); 897 } 898 if (*bufpp == NULL) { 899 listall(string, lp); 900 return (-1); 901 } 902 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 903 return (-1); 904 mib[3] = indx; 905 *typep = lp->list[indx].ctl_type; 906 return (4); 907 } 908 #endif /* INET6 */ 909 910 #ifdef IPSEC 911 struct ctlname keynames[] = KEYCTL_NAMES; 912 struct list keylist = { keynames, KEYCTL_MAXID }; 913 914 /* 915 * handle key requests 916 */ 917 static int 918 sysctl_key(string, bufpp, mib, flags, typep) 919 char *string; 920 char **bufpp; 921 int mib[]; 922 int flags; 923 int *typep; 924 { 925 struct list *lp; 926 int indx; 927 928 if (*bufpp == NULL) { 929 listall(string, &keylist); 930 return (-1); 931 } 932 if ((indx = findname(string, "third", bufpp, &keylist)) == -1) 933 return (-1); 934 mib[2] = indx; 935 lp = &keylist; 936 *typep = lp->list[indx].ctl_type; 937 return 3; 938 } 939 #endif /*IPSEC*/ 940 941 struct ctlname ffsname[] = FFS_NAMES; 942 struct ctlname nfsname[] = NFS_NAMES; 943 struct list vfsvars[] = { 944 { 0, 0 }, /* generic */ 945 { ffsname, FFS_MAXID }, /* FFS */ 946 { nfsname, NFS_MAXID }, /* NFS */ 947 { 0, 0 }, /* MFS */ 948 { 0, 0 }, /* MSDOS */ 949 { 0, 0 }, /* LFS */ 950 { 0, 0 }, /* old LOFS */ 951 { 0, 0 }, /* FDESC */ 952 { 0, 0 }, /* PORTAL */ 953 { 0, 0 }, /* NULL */ 954 { 0, 0 }, /* UMAP */ 955 { 0, 0 }, /* KERNFS */ 956 { 0, 0 }, /* PROCFS */ 957 { 0, 0 }, /* AFS */ 958 { 0, 0 }, /* CD9660 */ 959 { 0, 0 }, /* UNION */ 960 { 0, 0 }, /* ADOSFS */ 961 { 0, 0 }, /* EXT2FS */ 962 { 0, 0 }, /* CODA */ 963 { 0, 0 }, /* FILECORE */ 964 }; 965 966 /* 967 * handle vfs requests 968 */ 969 static int 970 sysctl_vfs(string, bufpp, mib, flags, typep) 971 char *string; 972 char **bufpp; 973 int mib[]; 974 int flags; 975 int *typep; 976 { 977 struct list *lp = &vfsvars[mib[1]]; 978 int indx; 979 980 if (lp->list == NULL) { 981 if (flags) 982 warnx("No variables defined for file system %s", 983 string); 984 return (-1); 985 } 986 if (*bufpp == NULL) { 987 listall(string, lp); 988 return (-1); 989 } 990 if ((indx = findname(string, "third", bufpp, lp)) == -1) 991 return (-1); 992 mib[2] = indx; 993 *typep = lp->list[indx].ctl_type; 994 return (3); 995 } 996 997 struct ctlname vfsgenname[] = CTL_VFSGENCTL_NAMES; 998 struct list vfsgenvars = { vfsgenname, VFSGEN_MAXID }; 999 1000 /* 1001 * handle vfs.generic requests 1002 */ 1003 static int 1004 sysctl_vfsgen(string, bufpp, mib, flags, typep) 1005 char *string; 1006 char **bufpp; 1007 int mib[]; 1008 int flags; 1009 int *typep; 1010 { 1011 struct list *lp = &vfsgenvars; 1012 int indx; 1013 1014 if (*bufpp == NULL) { 1015 listall(string, lp); 1016 return (-1); 1017 } 1018 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1019 return (-1); 1020 /* Don't bother with VFS_CONF. */ 1021 if (indx == VFS_CONF) 1022 return (-1); 1023 mib[2] = indx; 1024 *typep = lp->list[indx].ctl_type; 1025 return (3); 1026 } 1027 1028 struct ctlname procnames[] = PROC_PID_NAMES; 1029 struct list procvars = {procnames, PROC_PID_MAXID}; 1030 struct ctlname proclimitnames[] = PROC_PID_LIMIT_NAMES; 1031 struct list proclimitvars = {proclimitnames, PROC_PID_LIMIT_MAXID}; 1032 struct ctlname proclimittypenames[] = PROC_PID_LIMIT_TYPE_NAMES; 1033 struct list proclimittypevars = {proclimittypenames, 1034 PROC_PID_LIMIT_TYPE_MAXID}; 1035 /* 1036 * handle kern.proc requests 1037 */ 1038 static int 1039 sysctl_proc(string, bufpp, mib, flags, typep) 1040 char *string; 1041 char **bufpp; 1042 int mib[]; 1043 int flags; 1044 int *typep; 1045 { 1046 char *cp, name[BUFSIZ]; 1047 struct list *lp; 1048 int indx; 1049 1050 if (*bufpp == NULL) { 1051 strcpy(name, string); 1052 cp = &name[strlen(name)]; 1053 *cp++ = '.'; 1054 strcpy(cp, "curproc"); 1055 parse (name, Aflag); 1056 return (-1); 1057 } 1058 cp = strsep(bufpp, "."); 1059 if (cp == NULL) { 1060 warnx("%s: incomplete specification", string); 1061 return (-1); 1062 } 1063 if (strcmp(cp, "curproc") == 0) { 1064 mib[1] = PROC_CURPROC; 1065 } else { 1066 mib[1] = atoi(cp); 1067 if (mib[1] == 0) { 1068 warnx("second level name %s in %s is invalid", cp, 1069 string); 1070 return (-1); 1071 } 1072 } 1073 *typep = CTLTYPE_NODE; 1074 lp = &procvars; 1075 if (*bufpp == NULL) { 1076 listall(string, lp); 1077 return (-1); 1078 } 1079 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1080 return (-1); 1081 mib[2] = indx; 1082 *typep = lp->list[indx].ctl_type; 1083 if (*typep != CTLTYPE_NODE) 1084 return(3); 1085 lp = &proclimitvars; 1086 if (*bufpp == NULL) { 1087 listall(string, lp); 1088 return (-1); 1089 } 1090 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 1091 return (-1); 1092 mib[3] = indx; 1093 lp = &proclimittypevars; 1094 if (*bufpp == NULL) { 1095 listall(string, lp); 1096 return (-1); 1097 } 1098 if ((indx = findname(string, "fifth", bufpp, lp)) == -1) 1099 return (-1); 1100 mib[4] = indx; 1101 *typep = CTLTYPE_LIMIT; 1102 return(5); 1103 } 1104 1105 struct ctlname mbufnames[] = CTL_MBUF_NAMES; 1106 struct list mbufvars = { mbufnames, MBUF_MAXID }; 1107 /* 1108 * handle kern.mbuf requests 1109 */ 1110 static int 1111 sysctl_mbuf(string, bufpp, mib, flags, typep) 1112 char *string; 1113 char **bufpp; 1114 int mib[]; 1115 int flags; 1116 int *typep; 1117 { 1118 struct list *lp = &mbufvars; 1119 int indx; 1120 1121 if (*bufpp == NULL) { 1122 listall(string, lp); 1123 return (-1); 1124 } 1125 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1126 return (-1); 1127 mib[2] = indx; 1128 *typep = lp->list[indx].ctl_type; 1129 return (3); 1130 } 1131 1132 /* 1133 * Scan a list of names searching for a particular name. 1134 */ 1135 static int 1136 findname(string, level, bufp, namelist) 1137 char *string; 1138 char *level; 1139 char **bufp; 1140 struct list *namelist; 1141 { 1142 char *name; 1143 int i; 1144 1145 if (namelist->list == 0 || (name = strsep(bufp, ".")) == NULL) { 1146 warnx("%s: incomplete specification", string); 1147 return (-1); 1148 } 1149 for (i = 0; i < namelist->size; i++) 1150 if (namelist->list[i].ctl_name != NULL && 1151 strcmp(name, namelist->list[i].ctl_name) == 0) 1152 break; 1153 if (i == namelist->size) { 1154 warnx("%s level name %s in %s is invalid", 1155 level, name, string); 1156 return (-1); 1157 } 1158 return (i); 1159 } 1160 1161 static void 1162 usage() 1163 { 1164 extern char *__progname; 1165 1166 (void)fprintf(stderr, "Usage:\t%s %s\n\t%s %s\n\t%s %s\n\t%s %s\n\t%s %s\n", 1167 __progname, "[-n] variable ...", 1168 __progname, "[-n] -w variable=value ...", 1169 __progname, "[-n] -a", 1170 __progname, "[-n] -A", 1171 __progname, "[-n] -f file"); 1172 exit(1); 1173 } 1174
Indexes created Thu Oct 02 01:09:59 GMT 2025