sysctl.c revision 1.33
1 /* $NetBSD: sysctl.c,v 1.33 2000/05/27 15:11:05 simonb 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 1.33 2000/05/27 15:11:05 simonb 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((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 while ((l = fparseln(fp, NULL, NULL, NULL, 0))) { 242 if (*l) { 243 parse(l, 1); 244 } 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 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 if (flags == 0) 366 return; 367 warnx("Use ps to view %s information", string); 368 return; 369 case KERN_CLOCKRATE: 370 special |= CLOCK; 371 break; 372 case KERN_BOOTTIME: 373 special |= BOOTTIME; 374 break; 375 case KERN_NTPTIME: 376 if (flags == 0) 377 return; 378 warnx("Use xntpdc -c kerninfo to view %s information", 379 string); 380 return; 381 case KERN_MBUF: 382 len = sysctl_mbuf(string, &bufp, mib, flags, &type); 383 if (len < 0) 384 return; 385 break; 386 case KERN_CP_TIME: 387 special |= CPTIME; 388 break; 389 } 390 break; 391 392 case CTL_HW: 393 break; 394 395 case CTL_VM: 396 if (mib[1] == VM_LOADAVG) { 397 double loads[3]; 398 399 getloadavg(loads, 3); 400 if (!nflag) 401 printf("%s: ", string); 402 printf("%.2f %.2f %.2f\n", loads[0], loads[1], 403 loads[2]); 404 return; 405 } 406 if (mib[1] == VM_NKMEMPAGES) { 407 size_t nkmempages_len; 408 int nkmempages; 409 410 nkmempages_len = sizeof(nkmempages); 411 412 if (sysctl(mib, 2, &nkmempages, &nkmempages_len, 413 NULL, 0)) { 414 warn("unable to get %s", string); 415 return; 416 } 417 if (!nflag) 418 printf("%s: ", string); 419 printf("%d\n", nkmempages); 420 } 421 if (flags == 0) 422 return; 423 warnx("Use vmstat or systat to view %s information", string); 424 return; 425 426 case CTL_NET: 427 if (mib[1] == PF_INET) { 428 len = sysctl_inet(string, &bufp, mib, flags, &type); 429 if (len >= 0) 430 break; 431 return; 432 } 433 #ifdef INET6 434 else if (mib[1] == PF_INET6) { 435 len = sysctl_inet6(string, &bufp, mib, flags, &type); 436 if (len >= 0) 437 break; 438 return; 439 } 440 #endif /* INET6 */ 441 #ifdef IPSEC 442 else if (mib[1] == PF_KEY) { 443 len = sysctl_key(string, &bufp, mib, flags, &type); 444 if (len >= 0) 445 break; 446 return; 447 } 448 #endif /* IPSEC */ 449 if (flags == 0) 450 return; 451 warnx("Use netstat to view %s information", string); 452 return; 453 454 case CTL_DEBUG: 455 mib[2] = CTL_DEBUG_VALUE; 456 len = 3; 457 break; 458 459 case CTL_MACHDEP: 460 #ifdef CPU_CONSDEV 461 if (mib[1] == CPU_CONSDEV) 462 special |= CONSDEV; 463 #endif 464 #ifdef CPU_DISKINFO 465 if (mib[1] == CPU_DISKINFO) 466 special |= DISKINFO; 467 #endif 468 break; 469 470 case CTL_VFS: 471 if (mib[1] == VFS_GENERIC) 472 len = sysctl_vfsgen(string, &bufp, mib, flags, &type); 473 else 474 len = sysctl_vfs(string, &bufp, mib, flags, &type); 475 if (len < 0) 476 return; 477 478 /* XXX Special-case for NFS stats. */ 479 if (mib[1] == 2 && mib[2] == NFS_NFSSTATS) { 480 if (flags == 0) 481 return; 482 warnx("Use nfsstat to view %s information", string); 483 return; 484 } 485 break; 486 487 case CTL_USER: 488 case CTL_DDB: 489 break; 490 case CTL_PROC: 491 len = sysctl_proc(string, &bufp, mib, flags, &type); 492 if (len < 0) 493 return; 494 break; 495 default: 496 warnx("Illegal top level value: %d", mib[0]); 497 return; 498 499 } 500 if (bufp) { 501 warnx("Name %s in %s is unknown", bufp, string); 502 return; 503 } 504 if (newsize > 0) { 505 switch (type) { 506 case CTLTYPE_INT: 507 intval = atoi(newval); 508 newval = &intval; 509 newsize = sizeof intval; 510 break; 511 512 case CTLTYPE_LIMIT: 513 if (strcmp(newval, "unlimited") == 0) { 514 quadval = RLIM_INFINITY; 515 newval = &quadval; 516 newsize = sizeof quadval; 517 break; 518 } 519 /* FALLTHROUGH */ 520 case CTLTYPE_QUAD: 521 sscanf(newval, "%qd", (long long *)&quadval); 522 newval = &quadval; 523 newsize = sizeof quadval; 524 break; 525 } 526 } 527 size = BUFSIZ; 528 if (sysctl(mib, len, buf, &size, newsize ? newval : 0, newsize) == -1) { 529 if (flags == 0) 530 return; 531 switch (errno) { 532 case EOPNOTSUPP: 533 warnx("The value of %s is not available", string); 534 return; 535 case ENOTDIR: 536 warnx("The specification of %s is incomplete", 537 string); 538 return; 539 case ENOMEM: 540 warnx("The type %s is unknown to this program", 541 string); 542 return; 543 default: 544 warn("sysctl() for %s failed", string); 545 return; 546 } 547 } 548 if (special & CLOCK) { 549 struct clockinfo *clkp = (struct clockinfo *)buf; 550 551 if (!nflag) 552 printf("%s: ", string); 553 printf( 554 "tick = %d, tickadj = %d, hz = %d, profhz = %d, stathz = %d\n", 555 clkp->tick, clkp->tickadj, clkp->hz, clkp->profhz, clkp->stathz); 556 return; 557 } 558 if (special & BOOTTIME) { 559 struct timeval *btp = (struct timeval *)buf; 560 time_t boottime; 561 562 if (!nflag) { 563 boottime = btp->tv_sec; 564 /* ctime() provides the trailing newline */ 565 printf("%s = %s", string, ctime(&boottime)); 566 } else 567 printf("%ld\n", (long) btp->tv_sec); 568 return; 569 } 570 if (special & CONSDEV) { 571 dev_t dev = *(dev_t *)buf; 572 573 if (!nflag) 574 printf("%s = %s\n", string, devname(dev, S_IFCHR)); 575 else 576 printf("0x%x\n", dev); 577 return; 578 } 579 if (special & DISKINFO) { 580 /* Don't know a good way to deal with this i386 specific one */ 581 return; 582 } 583 if (special & CPTIME) { 584 long *cp_time = (long *)buf; 585 586 if (!nflag) 587 printf("%s: ", string); 588 printf( 589 "user = %ld, nice = %ld, sys = %ld, intr = %ld, idle = %ld\n", 590 cp_time[0], cp_time[1], cp_time[2], cp_time[3], cp_time[4]); 591 return; 592 } 593 594 switch (type) { 595 case CTLTYPE_INT: 596 if (newsize == 0) { 597 if (!nflag) 598 printf("%s = ", string); 599 printf("%d\n", *(int *)buf); 600 } else { 601 if (!nflag) 602 printf("%s: %d -> ", string, *(int *)buf); 603 printf("%d\n", *(int *)newval); 604 } 605 return; 606 607 case CTLTYPE_STRING: 608 if (newsize == 0) { 609 if (!nflag) 610 printf("%s = ", string); 611 printf("%s\n", buf); 612 } else { 613 if (!nflag) 614 printf("%s: %s -> ", string, buf); 615 printf("%s\n", (char *) newval); 616 } 617 return; 618 619 case CTLTYPE_LIMIT: 620 #define PRINTF_LIMIT(lim) { \ 621 if ((lim) == RLIM_INFINITY) \ 622 printf("unlimited");\ 623 else \ 624 printf("%qd", (lim)); \ 625 } 626 627 if (newsize == 0) { 628 if (!nflag) 629 printf("%s = ", string); 630 PRINTF_LIMIT((long long)(*(quad_t *)buf)); 631 } else { 632 if (!nflag) { 633 printf("%s: ", string); 634 PRINTF_LIMIT((long long)(*(quad_t *)buf)); 635 printf(" -> "); 636 } 637 PRINTF_LIMIT((long long)(*(quad_t *)newval)); 638 } 639 printf("\n"); 640 return; 641 #undef PRINTF_LIMIT 642 643 case CTLTYPE_QUAD: 644 if (newsize == 0) { 645 if (!nflag) 646 printf("%s = ", string); 647 printf("%qd\n", (long long)(*(quad_t *)buf)); 648 } else { 649 if (!nflag) 650 printf("%s: %qd -> ", string, 651 (long long)(*(quad_t *)buf)); 652 printf("%qd\n", (long long)(*(quad_t *)newval)); 653 } 654 return; 655 656 case CTLTYPE_STRUCT: 657 warnx("%s: unknown structure returned", string); 658 return; 659 660 default: 661 case CTLTYPE_NODE: 662 warnx("%s: unknown type returned", string); 663 return; 664 } 665 } 666 667 /* 668 * Initialize the set of debugging names 669 */ 670 static void 671 debuginit() 672 { 673 int mib[3], loc, i; 674 size_t size; 675 676 if (secondlevel[CTL_DEBUG].list != 0) 677 return; 678 secondlevel[CTL_DEBUG].list = debugname; 679 mib[0] = CTL_DEBUG; 680 mib[2] = CTL_DEBUG_NAME; 681 for (loc = 0, i = 0; i < CTL_DEBUG_MAXID; i++) { 682 mib[1] = i; 683 size = BUFSIZ - loc; 684 if (sysctl(mib, 3, &names[loc], &size, NULL, 0) == -1) 685 continue; 686 debugname[i].ctl_name = &names[loc]; 687 debugname[i].ctl_type = CTLTYPE_INT; 688 loc += size; 689 } 690 } 691 692 struct ctlname inetname[] = CTL_IPPROTO_NAMES; 693 struct ctlname ipname[] = IPCTL_NAMES; 694 struct ctlname icmpname[] = ICMPCTL_NAMES; 695 struct ctlname tcpname[] = TCPCTL_NAMES; 696 struct ctlname udpname[] = UDPCTL_NAMES; 697 #ifdef IPSEC 698 struct ctlname ipsecname[] = IPSECCTL_NAMES; 699 #endif 700 struct list inetlist = { inetname, IPPROTO_MAXID }; 701 struct list inetvars[] = { 702 /*0*/ { ipname, IPCTL_MAXID }, /* ip */ 703 { icmpname, ICMPCTL_MAXID }, /* icmp */ 704 { 0, 0 }, /* igmp */ 705 { 0, 0 }, /* ggmp */ 706 { 0, 0 }, 707 { 0, 0 }, 708 { tcpname, TCPCTL_MAXID }, /* tcp */ 709 { 0, 0 }, 710 { 0, 0 }, /* egp */ 711 { 0, 0 }, 712 /*10*/ { 0, 0 }, 713 { 0, 0 }, 714 { 0, 0 }, /* pup */ 715 { 0, 0 }, 716 { 0, 0 }, 717 { 0, 0 }, 718 { 0, 0 }, 719 { udpname, UDPCTL_MAXID }, /* udp */ 720 { 0, 0 }, 721 { 0, 0 }, 722 /*20*/ { 0, 0 }, 723 { 0, 0 }, 724 { 0, 0 }, /* idp */ 725 { 0, 0 }, 726 { 0, 0 }, 727 { 0, 0 }, 728 { 0, 0 }, 729 { 0, 0 }, 730 { 0, 0 }, 731 { 0, 0 }, 732 /*30*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 733 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 734 /*40*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 735 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 736 #ifdef IPSEC 737 { ipsecname, IPSECCTL_MAXID }, /* esp - for backward compatibility */ 738 { ipsecname, IPSECCTL_MAXID }, /* ah */ 739 #else 740 { 0, 0 }, 741 { 0, 0 }, 742 #endif 743 }; 744 745 /* 746 * handle internet requests 747 */ 748 static int 749 sysctl_inet(string, bufpp, mib, flags, typep) 750 char *string; 751 char **bufpp; 752 int mib[]; 753 int flags; 754 int *typep; 755 { 756 struct list *lp; 757 int indx; 758 759 if (*bufpp == NULL) { 760 listall(string, &inetlist); 761 return (-1); 762 } 763 if ((indx = findname(string, "third", bufpp, &inetlist)) == -1) 764 return (-1); 765 mib[2] = indx; 766 if (indx <= IPPROTO_MAXID && inetvars[indx].list != NULL) 767 lp = &inetvars[indx]; 768 else if (!flags) 769 return (-1); 770 else { 771 warnx("No variables defined for protocol %s", string); 772 return (-1); 773 } 774 if (*bufpp == NULL) { 775 listall(string, lp); 776 return (-1); 777 } 778 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 779 return (-1); 780 mib[3] = indx; 781 *typep = lp->list[indx].ctl_type; 782 return (4); 783 } 784 785 #ifdef INET6 786 struct ctlname inet6name[] = CTL_IPV6PROTO_NAMES; 787 struct ctlname ip6name[] = IPV6CTL_NAMES; 788 struct ctlname icmp6name[] = ICMPV6CTL_NAMES; 789 #ifdef TCP6 790 struct ctlname tcp6name[] = TCP6CTL_NAMES; 791 #endif 792 struct ctlname udp6name[] = UDP6CTL_NAMES; 793 struct ctlname pim6name[] = PIMCTL_NAMES; 794 struct ctlname ipsec6name[] = IPSEC6CTL_NAMES; 795 struct list inet6list = { inet6name, IPV6PROTO_MAXID }; 796 struct list inet6vars[] = { 797 /*0*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 798 { 0, 0 }, 799 #ifdef TCP6 800 { tcp6name, TCP6CTL_MAXID }, /* tcp6 */ 801 #else 802 { 0, 0 }, 803 #endif 804 { 0, 0 }, 805 { 0, 0 }, 806 { 0, 0 }, 807 /*10*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 808 { 0, 0 }, 809 { 0, 0 }, 810 { udp6name, UDP6CTL_MAXID }, /* udp6 */ 811 { 0, 0 }, 812 { 0, 0 }, 813 /*20*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 814 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 815 /*30*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 816 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 817 /*40*/ { 0, 0 }, 818 { ip6name, IPV6CTL_MAXID }, /* ipv6 */ 819 { 0, 0 }, 820 { 0, 0 }, 821 { 0, 0 }, 822 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 823 #ifdef IPSEC 824 /*50*/ { ipsec6name, IPSECCTL_MAXID }, /* esp6 - for backward compatibility */ 825 { ipsec6name, IPSECCTL_MAXID }, /* ah6 */ 826 #else 827 { 0, 0 }, 828 { 0, 0 }, 829 #endif 830 { 0, 0 }, 831 { 0, 0 }, 832 { 0, 0 }, 833 { 0, 0 }, 834 { 0, 0 }, 835 { 0, 0 }, 836 { icmp6name, ICMPV6CTL_MAXID }, /* icmp6 */ 837 { 0, 0 }, 838 /*60*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 839 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 840 /*70*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 841 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 842 /*80*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 843 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 844 /*90*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 845 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 846 /*100*/ { 0, 0 }, 847 { 0, 0 }, 848 { 0, 0 }, 849 { pim6name, PIMCTL_MAXID }, /* pim6 */ 850 }; 851 852 /* 853 * handle internet6 requests 854 */ 855 static int 856 sysctl_inet6(string, bufpp, mib, flags, typep) 857 char *string; 858 char **bufpp; 859 int mib[]; 860 int flags; 861 int *typep; 862 { 863 struct list *lp; 864 int indx; 865 866 if (*bufpp == NULL) { 867 listall(string, &inet6list); 868 return (-1); 869 } 870 if ((indx = findname(string, "third", bufpp, &inet6list)) == -1) 871 return (-1); 872 mib[2] = indx; 873 if (indx <= sizeof(inet6vars)/sizeof(inet6vars[0]) 874 && inet6vars[indx].list != NULL) { 875 lp = &inet6vars[indx]; 876 } else if (!flags) { 877 return (-1); 878 } else { 879 fprintf(stderr, "%s: no variables defined for this protocol\n", 880 string); 881 return (-1); 882 } 883 if (*bufpp == NULL) { 884 listall(string, lp); 885 return (-1); 886 } 887 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 888 return (-1); 889 mib[3] = indx; 890 *typep = lp->list[indx].ctl_type; 891 return (4); 892 } 893 #endif /* INET6 */ 894 895 #ifdef IPSEC 896 struct ctlname keynames[] = KEYCTL_NAMES; 897 struct list keylist = { keynames, KEYCTL_MAXID }; 898 899 /* 900 * handle key requests 901 */ 902 static int 903 sysctl_key(string, bufpp, mib, flags, typep) 904 char *string; 905 char **bufpp; 906 int mib[]; 907 int flags; 908 int *typep; 909 { 910 struct list *lp; 911 int indx; 912 913 if (*bufpp == NULL) { 914 listall(string, &keylist); 915 return (-1); 916 } 917 if ((indx = findname(string, "third", bufpp, &keylist)) == -1) 918 return (-1); 919 mib[2] = indx; 920 lp = &keylist; 921 *typep = lp->list[indx].ctl_type; 922 return 3; 923 } 924 #endif /*IPSEC*/ 925 926 struct ctlname ffsname[] = FFS_NAMES; 927 struct ctlname nfsname[] = NFS_NAMES; 928 struct list vfsvars[] = { 929 { 0, 0 }, /* generic */ 930 { ffsname, FFS_MAXID }, /* FFS */ 931 { nfsname, NFS_MAXID }, /* NFS */ 932 { 0, 0 }, /* MFS */ 933 { 0, 0 }, /* MSDOS */ 934 { 0, 0 }, /* LFS */ 935 { 0, 0 }, /* old LOFS */ 936 { 0, 0 }, /* FDESC */ 937 { 0, 0 }, /* PORTAL */ 938 { 0, 0 }, /* NULL */ 939 { 0, 0 }, /* UMAP */ 940 { 0, 0 }, /* KERNFS */ 941 { 0, 0 }, /* PROCFS */ 942 { 0, 0 }, /* AFS */ 943 { 0, 0 }, /* CD9660 */ 944 { 0, 0 }, /* UNION */ 945 { 0, 0 }, /* ADOSFS */ 946 { 0, 0 }, /* EXT2FS */ 947 { 0, 0 }, /* CODA */ 948 { 0, 0 }, /* FILECORE */ 949 }; 950 951 /* 952 * handle vfs requests 953 */ 954 static int 955 sysctl_vfs(string, bufpp, mib, flags, typep) 956 char *string; 957 char **bufpp; 958 int mib[]; 959 int flags; 960 int *typep; 961 { 962 struct list *lp = &vfsvars[mib[1]]; 963 int indx; 964 965 if (lp->list == NULL) { 966 if (flags) 967 warnx("No variables defined for file system %s", 968 string); 969 return (-1); 970 } 971 if (*bufpp == NULL) { 972 listall(string, lp); 973 return (-1); 974 } 975 if ((indx = findname(string, "third", bufpp, lp)) == -1) 976 return (-1); 977 mib[2] = indx; 978 *typep = lp->list[indx].ctl_type; 979 return (3); 980 } 981 982 struct ctlname vfsgenname[] = CTL_VFSGENCTL_NAMES; 983 struct list vfsgenvars = { vfsgenname, VFSGEN_MAXID }; 984 985 /* 986 * handle vfs.generic requests 987 */ 988 static int 989 sysctl_vfsgen(string, bufpp, mib, flags, typep) 990 char *string; 991 char **bufpp; 992 int mib[]; 993 int flags; 994 int *typep; 995 { 996 struct list *lp = &vfsgenvars; 997 int indx; 998 999 if (*bufpp == NULL) { 1000 listall(string, lp); 1001 return (-1); 1002 } 1003 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1004 return (-1); 1005 /* Don't bother with VFS_CONF. */ 1006 if (indx == VFS_CONF) 1007 return (-1); 1008 mib[2] = indx; 1009 *typep = lp->list[indx].ctl_type; 1010 return (3); 1011 } 1012 1013 struct ctlname procnames[] = PROC_PID_NAMES; 1014 struct list procvars = {procnames, PROC_PID_MAXID}; 1015 struct ctlname proclimitnames[] = PROC_PID_LIMIT_NAMES; 1016 struct list proclimitvars = {proclimitnames, PROC_PID_LIMIT_MAXID}; 1017 struct ctlname proclimittypenames[] = PROC_PID_LIMIT_TYPE_NAMES; 1018 struct list proclimittypevars = {proclimittypenames, 1019 PROC_PID_LIMIT_TYPE_MAXID}; 1020 /* 1021 * handle kern.proc requests 1022 */ 1023 static int 1024 sysctl_proc(string, bufpp, mib, flags, typep) 1025 char *string; 1026 char **bufpp; 1027 int mib[]; 1028 int flags; 1029 int *typep; 1030 { 1031 char *cp, name[BUFSIZ]; 1032 struct list *lp; 1033 int indx; 1034 1035 if (*bufpp == NULL) { 1036 strcpy(name, string); 1037 cp = &name[strlen(name)]; 1038 *cp++ = '.'; 1039 strcpy(cp, "curproc"); 1040 parse (name, Aflag); 1041 return (-1); 1042 } 1043 cp = strsep(bufpp, "."); 1044 if (cp == NULL) { 1045 warnx("%s: incomplete specification", string); 1046 return (-1); 1047 } 1048 if (strcmp(cp, "curproc") == 0) { 1049 mib[1] = PROC_CURPROC; 1050 } else { 1051 mib[1] = atoi(cp); 1052 if (mib[1] == 0) { 1053 warnx("second level name %s in %s is invalid", cp, 1054 string); 1055 return (-1); 1056 } 1057 } 1058 *typep = CTLTYPE_NODE; 1059 lp = &procvars; 1060 if (*bufpp == NULL) { 1061 listall(string, lp); 1062 return (-1); 1063 } 1064 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1065 return (-1); 1066 mib[2] = indx; 1067 *typep = lp->list[indx].ctl_type; 1068 if (*typep != CTLTYPE_NODE) 1069 return(3); 1070 lp = &proclimitvars; 1071 if (*bufpp == NULL) { 1072 listall(string, lp); 1073 return (-1); 1074 } 1075 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 1076 return (-1); 1077 mib[3] = indx; 1078 lp = &proclimittypevars; 1079 if (*bufpp == NULL) { 1080 listall(string, lp); 1081 return (-1); 1082 } 1083 if ((indx = findname(string, "fifth", bufpp, lp)) == -1) 1084 return (-1); 1085 mib[4] = indx; 1086 *typep = CTLTYPE_LIMIT; 1087 return(5); 1088 } 1089 1090 struct ctlname mbufnames[] = CTL_MBUF_NAMES; 1091 struct list mbufvars = { mbufnames, MBUF_MAXID }; 1092 /* 1093 * handle kern.mbuf requests 1094 */ 1095 static int 1096 sysctl_mbuf(string, bufpp, mib, flags, typep) 1097 char *string; 1098 char **bufpp; 1099 int mib[]; 1100 int flags; 1101 int *typep; 1102 { 1103 struct list *lp = &mbufvars; 1104 int indx; 1105 1106 if (*bufpp == NULL) { 1107 listall(string, lp); 1108 return (-1); 1109 } 1110 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1111 return (-1); 1112 mib[2] = indx; 1113 *typep = lp->list[indx].ctl_type; 1114 return (3); 1115 } 1116 1117 /* 1118 * Scan a list of names searching for a particular name. 1119 */ 1120 static int 1121 findname(string, level, bufp, namelist) 1122 char *string; 1123 char *level; 1124 char **bufp; 1125 struct list *namelist; 1126 { 1127 char *name; 1128 int i; 1129 1130 if (namelist->list == 0 || (name = strsep(bufp, ".")) == NULL) { 1131 warnx("%s: incomplete specification", string); 1132 return (-1); 1133 } 1134 for (i = 0; i < namelist->size; i++) 1135 if (namelist->list[i].ctl_name != NULL && 1136 strcmp(name, namelist->list[i].ctl_name) == 0) 1137 break; 1138 if (i == namelist->size) { 1139 warnx("%s level name %s in %s is invalid", 1140 level, name, string); 1141 return (-1); 1142 } 1143 return (i); 1144 } 1145 1146 static void 1147 usage() 1148 { 1149 extern char *__progname; 1150 1151 (void)fprintf(stderr, "Usage:\t%s %s\n\t%s %s\n\t%s %s\n\t%s %s\n\t%s %s\n", 1152 __progname, "[-n] variable ...", 1153 __progname, "[-n] -w variable=value ...", 1154 __progname, "[-n] -a", 1155 __progname, "[-n] -A", 1156 __progname, "[-n] -f file"); 1157 exit(1); 1158 } 1159
Indexes created Thu Oct 02 01:09:59 GMT 2025