sysctl.c revision 1.35
1 /* $NetBSD: sysctl.c,v 1.35 2000/05/29 11:59:01 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 1.35 2000/05/29 11:59:01 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 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 } 391 break; 392 393 case CTL_HW: 394 break; 395 396 case CTL_VM: 397 if (mib[1] == VM_LOADAVG) { 398 double loads[3]; 399 400 getloadavg(loads, 3); 401 if (!nflag) 402 printf("%s: ", string); 403 printf("%.2f %.2f %.2f\n", loads[0], loads[1], 404 loads[2]); 405 return; 406 } 407 if (mib[1] == VM_NKMEMPAGES) { 408 size_t nkmempages_len; 409 int nkmempages; 410 411 nkmempages_len = sizeof(nkmempages); 412 413 if (sysctl(mib, 2, &nkmempages, &nkmempages_len, 414 NULL, 0)) { 415 warn("unable to get %s", string); 416 return; 417 } 418 if (!nflag) 419 printf("%s: ", string); 420 printf("%d\n", nkmempages); 421 } 422 if (flags == 0) 423 return; 424 warnx("Use vmstat or systat to view %s information", string); 425 return; 426 427 case CTL_NET: 428 if (mib[1] == PF_INET) { 429 len = sysctl_inet(string, &bufp, mib, flags, &type); 430 if (len >= 0) 431 break; 432 return; 433 } 434 #ifdef INET6 435 else if (mib[1] == PF_INET6) { 436 len = sysctl_inet6(string, &bufp, mib, flags, &type); 437 if (len >= 0) 438 break; 439 return; 440 } 441 #endif /* INET6 */ 442 #ifdef IPSEC 443 else if (mib[1] == PF_KEY) { 444 len = sysctl_key(string, &bufp, mib, flags, &type); 445 if (len >= 0) 446 break; 447 return; 448 } 449 #endif /* IPSEC */ 450 if (flags == 0) 451 return; 452 warnx("Use netstat to view %s information", string); 453 return; 454 455 case CTL_DEBUG: 456 mib[2] = CTL_DEBUG_VALUE; 457 len = 3; 458 break; 459 460 case CTL_MACHDEP: 461 #ifdef CPU_CONSDEV 462 if (mib[1] == CPU_CONSDEV) 463 special |= CONSDEV; 464 #endif 465 #ifdef CPU_DISKINFO 466 if (mib[1] == CPU_DISKINFO) 467 special |= DISKINFO; 468 #endif 469 break; 470 471 case CTL_VFS: 472 if (mib[1] == VFS_GENERIC) 473 len = sysctl_vfsgen(string, &bufp, mib, flags, &type); 474 else 475 len = sysctl_vfs(string, &bufp, mib, flags, &type); 476 if (len < 0) 477 return; 478 479 /* XXX Special-case for NFS stats. */ 480 if (mib[1] == 2 && mib[2] == NFS_NFSSTATS) { 481 if (flags == 0) 482 return; 483 warnx("Use nfsstat to view %s information", string); 484 return; 485 } 486 break; 487 488 case CTL_USER: 489 case CTL_DDB: 490 break; 491 case CTL_PROC: 492 len = sysctl_proc(string, &bufp, mib, flags, &type); 493 if (len < 0) 494 return; 495 break; 496 default: 497 warnx("Illegal top level value: %d", mib[0]); 498 return; 499 500 } 501 if (bufp) { 502 warnx("Name %s in %s is unknown", bufp, string); 503 return; 504 } 505 if (newsize > 0) { 506 switch (type) { 507 case CTLTYPE_INT: 508 intval = atoi(newval); 509 newval = &intval; 510 newsize = sizeof intval; 511 break; 512 513 case CTLTYPE_LIMIT: 514 if (strcmp(newval, "unlimited") == 0) { 515 quadval = RLIM_INFINITY; 516 newval = &quadval; 517 newsize = sizeof quadval; 518 break; 519 } 520 /* FALLTHROUGH */ 521 case CTLTYPE_QUAD: 522 sscanf(newval, "%qd", (long long *)&quadval); 523 newval = &quadval; 524 newsize = sizeof quadval; 525 break; 526 } 527 } 528 size = BUFSIZ; 529 if (sysctl(mib, len, buf, &size, newsize ? newval : 0, newsize) == -1) { 530 if (flags == 0) 531 return; 532 switch (errno) { 533 case EOPNOTSUPP: 534 warnx("The value of %s is not available", string); 535 return; 536 case ENOTDIR: 537 warnx("The specification of %s is incomplete", 538 string); 539 return; 540 case ENOMEM: 541 warnx("The type %s is unknown to this program", 542 string); 543 return; 544 default: 545 warn("sysctl() for %s failed", string); 546 return; 547 } 548 } 549 if (special & CLOCK) { 550 struct clockinfo *clkp = (struct clockinfo *)buf; 551 552 if (!nflag) 553 printf("%s: ", string); 554 printf( 555 "tick = %d, tickadj = %d, hz = %d, profhz = %d, stathz = %d\n", 556 clkp->tick, clkp->tickadj, clkp->hz, clkp->profhz, clkp->stathz); 557 return; 558 } 559 if (special & BOOTTIME) { 560 struct timeval *btp = (struct timeval *)buf; 561 time_t boottime; 562 563 if (!nflag) { 564 boottime = btp->tv_sec; 565 /* ctime() provides the trailing newline */ 566 printf("%s = %s", string, ctime(&boottime)); 567 } else 568 printf("%ld\n", (long) btp->tv_sec); 569 return; 570 } 571 if (special & CONSDEV) { 572 dev_t dev = *(dev_t *)buf; 573 574 if (!nflag) 575 printf("%s = %s\n", string, devname(dev, S_IFCHR)); 576 else 577 printf("0x%x\n", dev); 578 return; 579 } 580 if (special & DISKINFO) { 581 /* Don't know a good way to deal with this i386 specific one */ 582 return; 583 } 584 if (special & CPTIME) { 585 u_int64_t *cp_time = (u_int64_t *)buf; 586 587 if (!nflag) 588 printf("%s: ", string); 589 printf("user = %lld, nice = %lld, sys = %lld, intr = %lld, " 590 "idle = %lld\n", cp_time[0], cp_time[1], cp_time[2], 591 cp_time[3], cp_time[4]); 592 return; 593 } 594 595 switch (type) { 596 case CTLTYPE_INT: 597 if (newsize == 0) { 598 if (!nflag) 599 printf("%s = ", string); 600 printf("%d\n", *(int *)buf); 601 } else { 602 if (!nflag) 603 printf("%s: %d -> ", string, *(int *)buf); 604 printf("%d\n", *(int *)newval); 605 } 606 return; 607 608 case CTLTYPE_STRING: 609 if (newsize == 0) { 610 if (!nflag) 611 printf("%s = ", string); 612 printf("%s\n", buf); 613 } else { 614 if (!nflag) 615 printf("%s: %s -> ", string, buf); 616 printf("%s\n", (char *) newval); 617 } 618 return; 619 620 case CTLTYPE_LIMIT: 621 #define PRINTF_LIMIT(lim) { \ 622 if ((lim) == RLIM_INFINITY) \ 623 printf("unlimited");\ 624 else \ 625 printf("%qd", (lim)); \ 626 } 627 628 if (newsize == 0) { 629 if (!nflag) 630 printf("%s = ", string); 631 PRINTF_LIMIT((long long)(*(quad_t *)buf)); 632 } else { 633 if (!nflag) { 634 printf("%s: ", string); 635 PRINTF_LIMIT((long long)(*(quad_t *)buf)); 636 printf(" -> "); 637 } 638 PRINTF_LIMIT((long long)(*(quad_t *)newval)); 639 } 640 printf("\n"); 641 return; 642 #undef PRINTF_LIMIT 643 644 case CTLTYPE_QUAD: 645 if (newsize == 0) { 646 if (!nflag) 647 printf("%s = ", string); 648 printf("%qd\n", (long long)(*(quad_t *)buf)); 649 } else { 650 if (!nflag) 651 printf("%s: %qd -> ", string, 652 (long long)(*(quad_t *)buf)); 653 printf("%qd\n", (long long)(*(quad_t *)newval)); 654 } 655 return; 656 657 case CTLTYPE_STRUCT: 658 warnx("%s: unknown structure returned", string); 659 return; 660 661 default: 662 case CTLTYPE_NODE: 663 warnx("%s: unknown type returned", string); 664 return; 665 } 666 } 667 668 /* 669 * Initialize the set of debugging names 670 */ 671 static void 672 debuginit() 673 { 674 int mib[3], loc, i; 675 size_t size; 676 677 if (secondlevel[CTL_DEBUG].list != 0) 678 return; 679 secondlevel[CTL_DEBUG].list = debugname; 680 mib[0] = CTL_DEBUG; 681 mib[2] = CTL_DEBUG_NAME; 682 for (loc = 0, i = 0; i < CTL_DEBUG_MAXID; i++) { 683 mib[1] = i; 684 size = BUFSIZ - loc; 685 if (sysctl(mib, 3, &names[loc], &size, NULL, 0) == -1) 686 continue; 687 debugname[i].ctl_name = &names[loc]; 688 debugname[i].ctl_type = CTLTYPE_INT; 689 loc += size; 690 } 691 } 692 693 struct ctlname inetname[] = CTL_IPPROTO_NAMES; 694 struct ctlname ipname[] = IPCTL_NAMES; 695 struct ctlname icmpname[] = ICMPCTL_NAMES; 696 struct ctlname tcpname[] = TCPCTL_NAMES; 697 struct ctlname udpname[] = UDPCTL_NAMES; 698 #ifdef IPSEC 699 struct ctlname ipsecname[] = IPSECCTL_NAMES; 700 #endif 701 struct list inetlist = { inetname, IPPROTO_MAXID }; 702 struct list inetvars[] = { 703 /*0*/ { ipname, IPCTL_MAXID }, /* ip */ 704 { icmpname, ICMPCTL_MAXID }, /* icmp */ 705 { 0, 0 }, /* igmp */ 706 { 0, 0 }, /* ggmp */ 707 { 0, 0 }, 708 { 0, 0 }, 709 { tcpname, TCPCTL_MAXID }, /* tcp */ 710 { 0, 0 }, 711 { 0, 0 }, /* egp */ 712 { 0, 0 }, 713 /*10*/ { 0, 0 }, 714 { 0, 0 }, 715 { 0, 0 }, /* pup */ 716 { 0, 0 }, 717 { 0, 0 }, 718 { 0, 0 }, 719 { 0, 0 }, 720 { udpname, UDPCTL_MAXID }, /* udp */ 721 { 0, 0 }, 722 { 0, 0 }, 723 /*20*/ { 0, 0 }, 724 { 0, 0 }, 725 { 0, 0 }, /* idp */ 726 { 0, 0 }, 727 { 0, 0 }, 728 { 0, 0 }, 729 { 0, 0 }, 730 { 0, 0 }, 731 { 0, 0 }, 732 { 0, 0 }, 733 /*30*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 734 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 735 /*40*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 736 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 737 #ifdef IPSEC 738 { ipsecname, IPSECCTL_MAXID }, /* esp - for backward compatibility */ 739 { ipsecname, IPSECCTL_MAXID }, /* ah */ 740 #else 741 { 0, 0 }, 742 { 0, 0 }, 743 #endif 744 }; 745 746 /* 747 * handle internet requests 748 */ 749 static int 750 sysctl_inet(string, bufpp, mib, flags, typep) 751 char *string; 752 char **bufpp; 753 int mib[]; 754 int flags; 755 int *typep; 756 { 757 struct list *lp; 758 int indx; 759 760 if (*bufpp == NULL) { 761 listall(string, &inetlist); 762 return (-1); 763 } 764 if ((indx = findname(string, "third", bufpp, &inetlist)) == -1) 765 return (-1); 766 mib[2] = indx; 767 if (indx <= IPPROTO_MAXID && inetvars[indx].list != NULL) 768 lp = &inetvars[indx]; 769 else if (!flags) 770 return (-1); 771 else { 772 warnx("No variables defined for protocol %s", string); 773 return (-1); 774 } 775 if (*bufpp == NULL) { 776 listall(string, lp); 777 return (-1); 778 } 779 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 780 return (-1); 781 mib[3] = indx; 782 *typep = lp->list[indx].ctl_type; 783 return (4); 784 } 785 786 #ifdef INET6 787 struct ctlname inet6name[] = CTL_IPV6PROTO_NAMES; 788 struct ctlname ip6name[] = IPV6CTL_NAMES; 789 struct ctlname icmp6name[] = ICMPV6CTL_NAMES; 790 #ifdef TCP6 791 struct ctlname tcp6name[] = TCP6CTL_NAMES; 792 #endif 793 struct ctlname udp6name[] = UDP6CTL_NAMES; 794 struct ctlname pim6name[] = PIMCTL_NAMES; 795 struct ctlname ipsec6name[] = IPSEC6CTL_NAMES; 796 struct list inet6list = { inet6name, IPV6PROTO_MAXID }; 797 struct list inet6vars[] = { 798 /*0*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 799 { 0, 0 }, 800 #ifdef TCP6 801 { tcp6name, TCP6CTL_MAXID }, /* tcp6 */ 802 #else 803 { 0, 0 }, 804 #endif 805 { 0, 0 }, 806 { 0, 0 }, 807 { 0, 0 }, 808 /*10*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 809 { 0, 0 }, 810 { 0, 0 }, 811 { udp6name, UDP6CTL_MAXID }, /* udp6 */ 812 { 0, 0 }, 813 { 0, 0 }, 814 /*20*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 815 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 816 /*30*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 817 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 818 /*40*/ { 0, 0 }, 819 { ip6name, IPV6CTL_MAXID }, /* ipv6 */ 820 { 0, 0 }, 821 { 0, 0 }, 822 { 0, 0 }, 823 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 824 #ifdef IPSEC 825 /*50*/ { ipsec6name, IPSECCTL_MAXID }, /* esp6 - for backward compatibility */ 826 { ipsec6name, IPSECCTL_MAXID }, /* ah6 */ 827 #else 828 { 0, 0 }, 829 { 0, 0 }, 830 #endif 831 { 0, 0 }, 832 { 0, 0 }, 833 { 0, 0 }, 834 { 0, 0 }, 835 { 0, 0 }, 836 { 0, 0 }, 837 { icmp6name, ICMPV6CTL_MAXID }, /* icmp6 */ 838 { 0, 0 }, 839 /*60*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 840 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 841 /*70*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 842 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 843 /*80*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 844 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 845 /*90*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 846 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 847 /*100*/ { 0, 0 }, 848 { 0, 0 }, 849 { 0, 0 }, 850 { pim6name, PIMCTL_MAXID }, /* pim6 */ 851 }; 852 853 /* 854 * handle internet6 requests 855 */ 856 static int 857 sysctl_inet6(string, bufpp, mib, flags, typep) 858 char *string; 859 char **bufpp; 860 int mib[]; 861 int flags; 862 int *typep; 863 { 864 struct list *lp; 865 int indx; 866 867 if (*bufpp == NULL) { 868 listall(string, &inet6list); 869 return (-1); 870 } 871 if ((indx = findname(string, "third", bufpp, &inet6list)) == -1) 872 return (-1); 873 mib[2] = indx; 874 if (indx <= sizeof(inet6vars)/sizeof(inet6vars[0]) 875 && inet6vars[indx].list != NULL) { 876 lp = &inet6vars[indx]; 877 } else if (!flags) { 878 return (-1); 879 } else { 880 fprintf(stderr, "%s: no variables defined for this protocol\n", 881 string); 882 return (-1); 883 } 884 if (*bufpp == NULL) { 885 listall(string, lp); 886 return (-1); 887 } 888 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 889 return (-1); 890 mib[3] = indx; 891 *typep = lp->list[indx].ctl_type; 892 return (4); 893 } 894 #endif /* INET6 */ 895 896 #ifdef IPSEC 897 struct ctlname keynames[] = KEYCTL_NAMES; 898 struct list keylist = { keynames, KEYCTL_MAXID }; 899 900 /* 901 * handle key requests 902 */ 903 static int 904 sysctl_key(string, bufpp, mib, flags, typep) 905 char *string; 906 char **bufpp; 907 int mib[]; 908 int flags; 909 int *typep; 910 { 911 struct list *lp; 912 int indx; 913 914 if (*bufpp == NULL) { 915 listall(string, &keylist); 916 return (-1); 917 } 918 if ((indx = findname(string, "third", bufpp, &keylist)) == -1) 919 return (-1); 920 mib[2] = indx; 921 lp = &keylist; 922 *typep = lp->list[indx].ctl_type; 923 return 3; 924 } 925 #endif /*IPSEC*/ 926 927 struct ctlname ffsname[] = FFS_NAMES; 928 struct ctlname nfsname[] = NFS_NAMES; 929 struct list vfsvars[] = { 930 { 0, 0 }, /* generic */ 931 { ffsname, FFS_MAXID }, /* FFS */ 932 { nfsname, NFS_MAXID }, /* NFS */ 933 { 0, 0 }, /* MFS */ 934 { 0, 0 }, /* MSDOS */ 935 { 0, 0 }, /* LFS */ 936 { 0, 0 }, /* old LOFS */ 937 { 0, 0 }, /* FDESC */ 938 { 0, 0 }, /* PORTAL */ 939 { 0, 0 }, /* NULL */ 940 { 0, 0 }, /* UMAP */ 941 { 0, 0 }, /* KERNFS */ 942 { 0, 0 }, /* PROCFS */ 943 { 0, 0 }, /* AFS */ 944 { 0, 0 }, /* CD9660 */ 945 { 0, 0 }, /* UNION */ 946 { 0, 0 }, /* ADOSFS */ 947 { 0, 0 }, /* EXT2FS */ 948 { 0, 0 }, /* CODA */ 949 { 0, 0 }, /* FILECORE */ 950 }; 951 952 /* 953 * handle vfs requests 954 */ 955 static int 956 sysctl_vfs(string, bufpp, mib, flags, typep) 957 char *string; 958 char **bufpp; 959 int mib[]; 960 int flags; 961 int *typep; 962 { 963 struct list *lp = &vfsvars[mib[1]]; 964 int indx; 965 966 if (lp->list == NULL) { 967 if (flags) 968 warnx("No variables defined for file system %s", 969 string); 970 return (-1); 971 } 972 if (*bufpp == NULL) { 973 listall(string, lp); 974 return (-1); 975 } 976 if ((indx = findname(string, "third", bufpp, lp)) == -1) 977 return (-1); 978 mib[2] = indx; 979 *typep = lp->list[indx].ctl_type; 980 return (3); 981 } 982 983 struct ctlname vfsgenname[] = CTL_VFSGENCTL_NAMES; 984 struct list vfsgenvars = { vfsgenname, VFSGEN_MAXID }; 985 986 /* 987 * handle vfs.generic requests 988 */ 989 static int 990 sysctl_vfsgen(string, bufpp, mib, flags, typep) 991 char *string; 992 char **bufpp; 993 int mib[]; 994 int flags; 995 int *typep; 996 { 997 struct list *lp = &vfsgenvars; 998 int indx; 999 1000 if (*bufpp == NULL) { 1001 listall(string, lp); 1002 return (-1); 1003 } 1004 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1005 return (-1); 1006 /* Don't bother with VFS_CONF. */ 1007 if (indx == VFS_CONF) 1008 return (-1); 1009 mib[2] = indx; 1010 *typep = lp->list[indx].ctl_type; 1011 return (3); 1012 } 1013 1014 struct ctlname procnames[] = PROC_PID_NAMES; 1015 struct list procvars = {procnames, PROC_PID_MAXID}; 1016 struct ctlname proclimitnames[] = PROC_PID_LIMIT_NAMES; 1017 struct list proclimitvars = {proclimitnames, PROC_PID_LIMIT_MAXID}; 1018 struct ctlname proclimittypenames[] = PROC_PID_LIMIT_TYPE_NAMES; 1019 struct list proclimittypevars = {proclimittypenames, 1020 PROC_PID_LIMIT_TYPE_MAXID}; 1021 /* 1022 * handle kern.proc requests 1023 */ 1024 static int 1025 sysctl_proc(string, bufpp, mib, flags, typep) 1026 char *string; 1027 char **bufpp; 1028 int mib[]; 1029 int flags; 1030 int *typep; 1031 { 1032 char *cp, name[BUFSIZ]; 1033 struct list *lp; 1034 int indx; 1035 1036 if (*bufpp == NULL) { 1037 strcpy(name, string); 1038 cp = &name[strlen(name)]; 1039 *cp++ = '.'; 1040 strcpy(cp, "curproc"); 1041 parse (name, Aflag); 1042 return (-1); 1043 } 1044 cp = strsep(bufpp, "."); 1045 if (cp == NULL) { 1046 warnx("%s: incomplete specification", string); 1047 return (-1); 1048 } 1049 if (strcmp(cp, "curproc") == 0) { 1050 mib[1] = PROC_CURPROC; 1051 } else { 1052 mib[1] = atoi(cp); 1053 if (mib[1] == 0) { 1054 warnx("second level name %s in %s is invalid", cp, 1055 string); 1056 return (-1); 1057 } 1058 } 1059 *typep = CTLTYPE_NODE; 1060 lp = &procvars; 1061 if (*bufpp == NULL) { 1062 listall(string, lp); 1063 return (-1); 1064 } 1065 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1066 return (-1); 1067 mib[2] = indx; 1068 *typep = lp->list[indx].ctl_type; 1069 if (*typep != CTLTYPE_NODE) 1070 return(3); 1071 lp = &proclimitvars; 1072 if (*bufpp == NULL) { 1073 listall(string, lp); 1074 return (-1); 1075 } 1076 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 1077 return (-1); 1078 mib[3] = indx; 1079 lp = &proclimittypevars; 1080 if (*bufpp == NULL) { 1081 listall(string, lp); 1082 return (-1); 1083 } 1084 if ((indx = findname(string, "fifth", bufpp, lp)) == -1) 1085 return (-1); 1086 mib[4] = indx; 1087 *typep = CTLTYPE_LIMIT; 1088 return(5); 1089 } 1090 1091 struct ctlname mbufnames[] = CTL_MBUF_NAMES; 1092 struct list mbufvars = { mbufnames, MBUF_MAXID }; 1093 /* 1094 * handle kern.mbuf requests 1095 */ 1096 static int 1097 sysctl_mbuf(string, bufpp, mib, flags, typep) 1098 char *string; 1099 char **bufpp; 1100 int mib[]; 1101 int flags; 1102 int *typep; 1103 { 1104 struct list *lp = &mbufvars; 1105 int indx; 1106 1107 if (*bufpp == NULL) { 1108 listall(string, lp); 1109 return (-1); 1110 } 1111 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1112 return (-1); 1113 mib[2] = indx; 1114 *typep = lp->list[indx].ctl_type; 1115 return (3); 1116 } 1117 1118 /* 1119 * Scan a list of names searching for a particular name. 1120 */ 1121 static int 1122 findname(string, level, bufp, namelist) 1123 char *string; 1124 char *level; 1125 char **bufp; 1126 struct list *namelist; 1127 { 1128 char *name; 1129 int i; 1130 1131 if (namelist->list == 0 || (name = strsep(bufp, ".")) == NULL) { 1132 warnx("%s: incomplete specification", string); 1133 return (-1); 1134 } 1135 for (i = 0; i < namelist->size; i++) 1136 if (namelist->list[i].ctl_name != NULL && 1137 strcmp(name, namelist->list[i].ctl_name) == 0) 1138 break; 1139 if (i == namelist->size) { 1140 warnx("%s level name %s in %s is invalid", 1141 level, name, string); 1142 return (-1); 1143 } 1144 return (i); 1145 } 1146 1147 static void 1148 usage() 1149 { 1150 extern char *__progname; 1151 1152 (void)fprintf(stderr, "Usage:\t%s %s\n\t%s %s\n\t%s %s\n\t%s %s\n\t%s %s\n", 1153 __progname, "[-n] variable ...", 1154 __progname, "[-n] -w variable=value ...", 1155 __progname, "[-n] -a", 1156 __progname, "[-n] -A", 1157 __progname, "[-n] -f file"); 1158 exit(1); 1159 } 1160
Indexes created Sun Sep 21 20:09:37 GMT 2025