sysctl.c revision 1.32
1 /* $NetBSD: sysctl.c,v 1.32 2000/05/27 15:05:14 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 1.32 2000/05/27 15:05:14 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 fprintf(stdout, "%s: ", string); 350 warnx("Kernel is not compiled for profiling"); 351 return; 352 } 353 if (!nflag) 354 fprintf(stdout, "%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 fprintf(stdout, "%s: ", string); 402 fprintf(stdout, "%.2f %.2f %.2f\n", 403 loads[0], loads[1], 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 fprintf(stdout, "%s: ", string); 419 fprintf(stdout, "%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 fprintf(stdout, "%s: ", string); 553 fprintf(stdout, 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 fprintf(stdout, "%s = %s", string, ctime(&boottime)); 566 } else 567 fprintf(stdout, "%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 fprintf(stdout, "%s = %s\n", string, 575 devname(dev, S_IFCHR)); 576 else 577 fprintf(stdout, "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 long *cp_time = (long *)buf; 586 587 if (!nflag) 588 fprintf(stdout, "%s: ", string); 589 fprintf(stdout, 590 "user = %ld, nice = %ld, sys = %ld, intr = %ld, idle = %ld\n", 591 cp_time[0], cp_time[1], cp_time[2], 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 fprintf(stdout, "%s = ", string); 600 fprintf(stdout, "%d\n", *(int *)buf); 601 } else { 602 if (!nflag) 603 fprintf(stdout, "%s: %d -> ", string, 604 *(int *)buf); 605 fprintf(stdout, "%d\n", *(int *)newval); 606 } 607 return; 608 609 case CTLTYPE_STRING: 610 if (newsize == 0) { 611 if (!nflag) 612 fprintf(stdout, "%s = ", string); 613 fprintf(stdout, "%s\n", buf); 614 } else { 615 if (!nflag) 616 fprintf(stdout, "%s: %s -> ", string, buf); 617 fprintf(stdout, "%s\n", (char *) newval); 618 } 619 return; 620 621 case CTLTYPE_LIMIT: 622 #define PRINTF_LIMIT(lim) { \ 623 if ((lim) == RLIM_INFINITY) \ 624 fprintf(stdout, "unlimited");\ 625 else \ 626 fprintf(stdout, "%qd", (lim)); \ 627 } 628 629 if (newsize == 0) { 630 if (!nflag) 631 fprintf(stdout, "%s = ", string); 632 PRINTF_LIMIT((long long)(*(quad_t *)buf)); 633 } else { 634 if (!nflag) { 635 fprintf(stdout, "%s: ", string); 636 PRINTF_LIMIT((long long)(*(quad_t *)buf)); 637 fprintf(stdout, " -> "); 638 } 639 PRINTF_LIMIT((long long)(*(quad_t *)newval)); 640 } 641 fprintf(stdout, "\n"); 642 return; 643 #undef PRINTF_LIMIT 644 645 case CTLTYPE_QUAD: 646 if (newsize == 0) { 647 if (!nflag) 648 fprintf(stdout, "%s = ", string); 649 fprintf(stdout, "%qd\n", (long long)(*(quad_t *)buf)); 650 } else { 651 if (!nflag) 652 fprintf(stdout, "%s: %qd -> ", string, 653 (long long)(*(quad_t *)buf)); 654 fprintf(stdout, "%qd\n", 655 (long long)(*(quad_t *)newval)); 656 } 657 return; 658 659 case CTLTYPE_STRUCT: 660 warnx("%s: unknown structure returned", string); 661 return; 662 663 default: 664 case CTLTYPE_NODE: 665 warnx("%s: unknown type returned", string); 666 return; 667 } 668 } 669 670 /* 671 * Initialize the set of debugging names 672 */ 673 static void 674 debuginit() 675 { 676 int mib[3], loc, i; 677 size_t size; 678 679 if (secondlevel[CTL_DEBUG].list != 0) 680 return; 681 secondlevel[CTL_DEBUG].list = debugname; 682 mib[0] = CTL_DEBUG; 683 mib[2] = CTL_DEBUG_NAME; 684 for (loc = 0, i = 0; i < CTL_DEBUG_MAXID; i++) { 685 mib[1] = i; 686 size = BUFSIZ - loc; 687 if (sysctl(mib, 3, &names[loc], &size, NULL, 0) == -1) 688 continue; 689 debugname[i].ctl_name = &names[loc]; 690 debugname[i].ctl_type = CTLTYPE_INT; 691 loc += size; 692 } 693 } 694 695 struct ctlname inetname[] = CTL_IPPROTO_NAMES; 696 struct ctlname ipname[] = IPCTL_NAMES; 697 struct ctlname icmpname[] = ICMPCTL_NAMES; 698 struct ctlname tcpname[] = TCPCTL_NAMES; 699 struct ctlname udpname[] = UDPCTL_NAMES; 700 #ifdef IPSEC 701 struct ctlname ipsecname[] = IPSECCTL_NAMES; 702 #endif 703 struct list inetlist = { inetname, IPPROTO_MAXID }; 704 struct list inetvars[] = { 705 /*0*/ { ipname, IPCTL_MAXID }, /* ip */ 706 { icmpname, ICMPCTL_MAXID }, /* icmp */ 707 { 0, 0 }, /* igmp */ 708 { 0, 0 }, /* ggmp */ 709 { 0, 0 }, 710 { 0, 0 }, 711 { tcpname, TCPCTL_MAXID }, /* tcp */ 712 { 0, 0 }, 713 { 0, 0 }, /* egp */ 714 { 0, 0 }, 715 /*10*/ { 0, 0 }, 716 { 0, 0 }, 717 { 0, 0 }, /* pup */ 718 { 0, 0 }, 719 { 0, 0 }, 720 { 0, 0 }, 721 { 0, 0 }, 722 { udpname, UDPCTL_MAXID }, /* udp */ 723 { 0, 0 }, 724 { 0, 0 }, 725 /*20*/ { 0, 0 }, 726 { 0, 0 }, 727 { 0, 0 }, /* idp */ 728 { 0, 0 }, 729 { 0, 0 }, 730 { 0, 0 }, 731 { 0, 0 }, 732 { 0, 0 }, 733 { 0, 0 }, 734 { 0, 0 }, 735 /*30*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 736 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 737 /*40*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 738 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 739 #ifdef IPSEC 740 { ipsecname, IPSECCTL_MAXID }, /* esp - for backward compatibility */ 741 { ipsecname, IPSECCTL_MAXID }, /* ah */ 742 #else 743 { 0, 0 }, 744 { 0, 0 }, 745 #endif 746 }; 747 748 /* 749 * handle internet requests 750 */ 751 static int 752 sysctl_inet(string, bufpp, mib, flags, typep) 753 char *string; 754 char **bufpp; 755 int mib[]; 756 int flags; 757 int *typep; 758 { 759 struct list *lp; 760 int indx; 761 762 if (*bufpp == NULL) { 763 listall(string, &inetlist); 764 return (-1); 765 } 766 if ((indx = findname(string, "third", bufpp, &inetlist)) == -1) 767 return (-1); 768 mib[2] = indx; 769 if (indx <= IPPROTO_MAXID && inetvars[indx].list != NULL) 770 lp = &inetvars[indx]; 771 else if (!flags) 772 return (-1); 773 else { 774 warnx("No variables defined for protocol %s", string); 775 return (-1); 776 } 777 if (*bufpp == NULL) { 778 listall(string, lp); 779 return (-1); 780 } 781 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 782 return (-1); 783 mib[3] = indx; 784 *typep = lp->list[indx].ctl_type; 785 return (4); 786 } 787 788 #ifdef INET6 789 struct ctlname inet6name[] = CTL_IPV6PROTO_NAMES; 790 struct ctlname ip6name[] = IPV6CTL_NAMES; 791 struct ctlname icmp6name[] = ICMPV6CTL_NAMES; 792 #ifdef TCP6 793 struct ctlname tcp6name[] = TCP6CTL_NAMES; 794 #endif 795 struct ctlname udp6name[] = UDP6CTL_NAMES; 796 struct ctlname pim6name[] = PIMCTL_NAMES; 797 struct ctlname ipsec6name[] = IPSEC6CTL_NAMES; 798 struct list inet6list = { inet6name, IPV6PROTO_MAXID }; 799 struct list inet6vars[] = { 800 /*0*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 801 { 0, 0 }, 802 #ifdef TCP6 803 { tcp6name, TCP6CTL_MAXID }, /* tcp6 */ 804 #else 805 { 0, 0 }, 806 #endif 807 { 0, 0 }, 808 { 0, 0 }, 809 { 0, 0 }, 810 /*10*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 811 { 0, 0 }, 812 { 0, 0 }, 813 { udp6name, UDP6CTL_MAXID }, /* udp6 */ 814 { 0, 0 }, 815 { 0, 0 }, 816 /*20*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 817 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 818 /*30*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 819 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 820 /*40*/ { 0, 0 }, 821 { ip6name, IPV6CTL_MAXID }, /* ipv6 */ 822 { 0, 0 }, 823 { 0, 0 }, 824 { 0, 0 }, 825 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 826 #ifdef IPSEC 827 /*50*/ { ipsec6name, IPSECCTL_MAXID }, /* esp6 - for backward compatibility */ 828 { ipsec6name, IPSECCTL_MAXID }, /* ah6 */ 829 #else 830 { 0, 0 }, 831 { 0, 0 }, 832 #endif 833 { 0, 0 }, 834 { 0, 0 }, 835 { 0, 0 }, 836 { 0, 0 }, 837 { 0, 0 }, 838 { 0, 0 }, 839 { icmp6name, ICMPV6CTL_MAXID }, /* icmp6 */ 840 { 0, 0 }, 841 /*60*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 842 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 843 /*70*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 844 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 845 /*80*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 846 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 847 /*90*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 848 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 849 /*100*/ { 0, 0 }, 850 { 0, 0 }, 851 { 0, 0 }, 852 { pim6name, PIMCTL_MAXID }, /* pim6 */ 853 }; 854 855 /* 856 * handle internet6 requests 857 */ 858 static int 859 sysctl_inet6(string, bufpp, mib, flags, typep) 860 char *string; 861 char **bufpp; 862 int mib[]; 863 int flags; 864 int *typep; 865 { 866 struct list *lp; 867 int indx; 868 869 if (*bufpp == NULL) { 870 listall(string, &inet6list); 871 return (-1); 872 } 873 if ((indx = findname(string, "third", bufpp, &inet6list)) == -1) 874 return (-1); 875 mib[2] = indx; 876 if (indx <= sizeof(inet6vars)/sizeof(inet6vars[0]) 877 && inet6vars[indx].list != NULL) { 878 lp = &inet6vars[indx]; 879 } else if (!flags) { 880 return (-1); 881 } else { 882 fprintf(stderr, "%s: no variables defined for this protocol\n", 883 string); 884 return (-1); 885 } 886 if (*bufpp == NULL) { 887 listall(string, lp); 888 return (-1); 889 } 890 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 891 return (-1); 892 mib[3] = indx; 893 *typep = lp->list[indx].ctl_type; 894 return (4); 895 } 896 #endif /* INET6 */ 897 898 #ifdef IPSEC 899 struct ctlname keynames[] = KEYCTL_NAMES; 900 struct list keylist = { keynames, KEYCTL_MAXID }; 901 902 /* 903 * handle key requests 904 */ 905 static int 906 sysctl_key(string, bufpp, mib, flags, typep) 907 char *string; 908 char **bufpp; 909 int mib[]; 910 int flags; 911 int *typep; 912 { 913 struct list *lp; 914 int indx; 915 916 if (*bufpp == NULL) { 917 listall(string, &keylist); 918 return (-1); 919 } 920 if ((indx = findname(string, "third", bufpp, &keylist)) == -1) 921 return (-1); 922 mib[2] = indx; 923 lp = &keylist; 924 *typep = lp->list[indx].ctl_type; 925 return 3; 926 } 927 #endif /*IPSEC*/ 928 929 struct ctlname ffsname[] = FFS_NAMES; 930 struct ctlname nfsname[] = NFS_NAMES; 931 struct list vfsvars[] = { 932 { 0, 0 }, /* generic */ 933 { ffsname, FFS_MAXID }, /* FFS */ 934 { nfsname, NFS_MAXID }, /* NFS */ 935 { 0, 0 }, /* MFS */ 936 { 0, 0 }, /* MSDOS */ 937 { 0, 0 }, /* LFS */ 938 { 0, 0 }, /* old LOFS */ 939 { 0, 0 }, /* FDESC */ 940 { 0, 0 }, /* PORTAL */ 941 { 0, 0 }, /* NULL */ 942 { 0, 0 }, /* UMAP */ 943 { 0, 0 }, /* KERNFS */ 944 { 0, 0 }, /* PROCFS */ 945 { 0, 0 }, /* AFS */ 946 { 0, 0 }, /* CD9660 */ 947 { 0, 0 }, /* UNION */ 948 { 0, 0 }, /* ADOSFS */ 949 { 0, 0 }, /* EXT2FS */ 950 { 0, 0 }, /* CODA */ 951 { 0, 0 }, /* FILECORE */ 952 }; 953 954 /* 955 * handle vfs requests 956 */ 957 static int 958 sysctl_vfs(string, bufpp, mib, flags, typep) 959 char *string; 960 char **bufpp; 961 int mib[]; 962 int flags; 963 int *typep; 964 { 965 struct list *lp = &vfsvars[mib[1]]; 966 int indx; 967 968 if (lp->list == NULL) { 969 if (flags) 970 warnx("No variables defined for file system %s", 971 string); 972 return (-1); 973 } 974 if (*bufpp == NULL) { 975 listall(string, lp); 976 return (-1); 977 } 978 if ((indx = findname(string, "third", bufpp, lp)) == -1) 979 return (-1); 980 mib[2] = indx; 981 *typep = lp->list[indx].ctl_type; 982 return (3); 983 } 984 985 struct ctlname vfsgenname[] = CTL_VFSGENCTL_NAMES; 986 struct list vfsgenvars = { vfsgenname, VFSGEN_MAXID }; 987 988 /* 989 * handle vfs.generic requests 990 */ 991 static int 992 sysctl_vfsgen(string, bufpp, mib, flags, typep) 993 char *string; 994 char **bufpp; 995 int mib[]; 996 int flags; 997 int *typep; 998 { 999 struct list *lp = &vfsgenvars; 1000 int indx; 1001 1002 if (*bufpp == NULL) { 1003 listall(string, lp); 1004 return (-1); 1005 } 1006 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1007 return (-1); 1008 /* Don't bother with VFS_CONF. */ 1009 if (indx == VFS_CONF) 1010 return (-1); 1011 mib[2] = indx; 1012 *typep = lp->list[indx].ctl_type; 1013 return (3); 1014 } 1015 1016 struct ctlname procnames[] = PROC_PID_NAMES; 1017 struct list procvars = {procnames, PROC_PID_MAXID}; 1018 struct ctlname proclimitnames[] = PROC_PID_LIMIT_NAMES; 1019 struct list proclimitvars = {proclimitnames, PROC_PID_LIMIT_MAXID}; 1020 struct ctlname proclimittypenames[] = PROC_PID_LIMIT_TYPE_NAMES; 1021 struct list proclimittypevars = {proclimittypenames, 1022 PROC_PID_LIMIT_TYPE_MAXID}; 1023 /* 1024 * handle kern.proc requests 1025 */ 1026 static int 1027 sysctl_proc(string, bufpp, mib, flags, typep) 1028 char *string; 1029 char **bufpp; 1030 int mib[]; 1031 int flags; 1032 int *typep; 1033 { 1034 char *cp, name[BUFSIZ]; 1035 struct list *lp; 1036 int indx; 1037 1038 if (*bufpp == NULL) { 1039 strcpy(name, string); 1040 cp = &name[strlen(name)]; 1041 *cp++ = '.'; 1042 strcpy(cp, "curproc"); 1043 parse (name, Aflag); 1044 return (-1); 1045 } 1046 cp = strsep(bufpp, "."); 1047 if (cp == NULL) { 1048 warnx("%s: incomplete specification", string); 1049 return (-1); 1050 } 1051 if (strcmp(cp, "curproc") == 0) { 1052 mib[1] = PROC_CURPROC; 1053 } else { 1054 mib[1] = atoi(cp); 1055 if (mib[1] == 0) { 1056 warnx("second level name %s in %s is invalid", cp, 1057 string); 1058 return (-1); 1059 } 1060 } 1061 *typep = CTLTYPE_NODE; 1062 lp = &procvars; 1063 if (*bufpp == NULL) { 1064 listall(string, lp); 1065 return (-1); 1066 } 1067 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1068 return (-1); 1069 mib[2] = indx; 1070 *typep = lp->list[indx].ctl_type; 1071 if (*typep != CTLTYPE_NODE) 1072 return(3); 1073 lp = &proclimitvars; 1074 if (*bufpp == NULL) { 1075 listall(string, lp); 1076 return (-1); 1077 } 1078 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 1079 return (-1); 1080 mib[3] = indx; 1081 lp = &proclimittypevars; 1082 if (*bufpp == NULL) { 1083 listall(string, lp); 1084 return (-1); 1085 } 1086 if ((indx = findname(string, "fifth", bufpp, lp)) == -1) 1087 return (-1); 1088 mib[4] = indx; 1089 *typep = CTLTYPE_LIMIT; 1090 return(5); 1091 } 1092 1093 struct ctlname mbufnames[] = CTL_MBUF_NAMES; 1094 struct list mbufvars = { mbufnames, MBUF_MAXID }; 1095 /* 1096 * handle kern.mbuf requests 1097 */ 1098 static int 1099 sysctl_mbuf(string, bufpp, mib, flags, typep) 1100 char *string; 1101 char **bufpp; 1102 int mib[]; 1103 int flags; 1104 int *typep; 1105 { 1106 struct list *lp = &mbufvars; 1107 int indx; 1108 1109 if (*bufpp == NULL) { 1110 listall(string, lp); 1111 return (-1); 1112 } 1113 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1114 return (-1); 1115 mib[2] = indx; 1116 *typep = lp->list[indx].ctl_type; 1117 return (3); 1118 } 1119 1120 /* 1121 * Scan a list of names searching for a particular name. 1122 */ 1123 static int 1124 findname(string, level, bufp, namelist) 1125 char *string; 1126 char *level; 1127 char **bufp; 1128 struct list *namelist; 1129 { 1130 char *name; 1131 int i; 1132 1133 if (namelist->list == 0 || (name = strsep(bufp, ".")) == NULL) { 1134 warnx("%s: incomplete specification", string); 1135 return (-1); 1136 } 1137 for (i = 0; i < namelist->size; i++) 1138 if (namelist->list[i].ctl_name != NULL && 1139 strcmp(name, namelist->list[i].ctl_name) == 0) 1140 break; 1141 if (i == namelist->size) { 1142 warnx("%s level name %s in %s is invalid", 1143 level, name, string); 1144 return (-1); 1145 } 1146 return (i); 1147 } 1148 1149 static void 1150 usage() 1151 { 1152 extern char *__progname; 1153 1154 (void)fprintf(stderr, "Usage:\t%s %s\n\t%s %s\n\t%s %s\n\t%s %s\n\t%s %s\n", 1155 __progname, "[-n] variable ...", 1156 __progname, "[-n] -w variable=value ...", 1157 __progname, "[-n] -a", 1158 __progname, "[-n] -A", 1159 __progname, "[-n] -f file"); 1160 exit(1); 1161 } 1162
Indexes created Sun Sep 21 20:09:37 GMT 2025