sysctl.c revision 1.36
1/* $OpenBSD: sysctl.c,v 1.36 1999/02/24 22:59:43 angelos Exp $ */ 2/* $NetBSD: sysctl.c,v 1.9 1995/09/30 07:12:50 thorpej Exp $ */ 3 4/* 5 * Copyright (c) 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37#ifndef lint 38static char 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 45static char sccsid[] = "@(#)sysctl.c 8.5 (Berkeley) 5/9/95"; 46#else 47static char *rcsid = "$OpenBSD: sysctl.c,v 1.36 1999/02/24 22:59:43 angelos Exp $"; 48#endif 49#endif /* not lint */ 50 51#include <sys/param.h> 52#include <sys/gmon.h> 53#include <sys/mount.h> 54#include <sys/stat.h> 55#include <sys/sysctl.h> 56#include <sys/socket.h> 57#include <vm/vm_param.h> 58#include <machine/cpu.h> 59#include <net/route.h> 60 61#include <netinet/in.h> 62#include <netinet/in_systm.h> 63#include <netinet/ip.h> 64#include <netinet/in_pcb.h> 65#include <netinet/ip_icmp.h> 66#include <netinet/icmp_var.h> 67#include <netinet/ip_var.h> 68#include <netinet/udp.h> 69#include <netinet/udp_var.h> 70#include <netinet/tcp.h> 71#include <netinet/tcp_timer.h> 72#include <netinet/tcp_var.h> 73 74#include <netipx/ipx.h> 75#include <netipx/ipx_var.h> 76#include <netipx/spx_var.h> 77#include <ddb/db_var.h> 78#include <dev/rndvar.h> 79#include <net/pfkeyv2.h> 80#include <netinet/ip_ipsp.h> 81 82#include <err.h> 83#include <errno.h> 84#include <stdio.h> 85#include <stdlib.h> 86#include <string.h> 87#include <ctype.h> 88 89#ifdef CPU_BIOS 90#include <machine/biosvar.h> 91#endif 92 93struct ctlname topname[] = CTL_NAMES; 94struct ctlname kernname[] = CTL_KERN_NAMES; 95struct ctlname vmname[] = CTL_VM_NAMES; 96struct ctlname fsname[] = CTL_FS_NAMES; 97struct ctlname netname[] = CTL_NET_NAMES; 98struct ctlname hwname[] = CTL_HW_NAMES; 99struct ctlname username[] = CTL_USER_NAMES; 100struct ctlname debugname[CTL_DEBUG_MAXID]; 101struct ctlname *vfsname; 102#ifdef CTL_MACHDEP_NAMES 103struct ctlname machdepname[] = CTL_MACHDEP_NAMES; 104#endif 105struct ctlname ddbname[] = CTL_DDB_NAMES; 106char names[BUFSIZ]; 107int lastused; 108 109struct list { 110 struct ctlname *list; 111 int size; 112}; 113struct list toplist = { topname, CTL_MAXID }; 114struct list secondlevel[] = { 115 { 0, 0 }, /* CTL_UNSPEC */ 116 { kernname, KERN_MAXID }, /* CTL_KERN */ 117 { vmname, VM_MAXID }, /* CTL_VM */ 118 { fsname, FS_MAXID }, /* CTL_FS */ 119 { netname, NET_MAXID }, /* CTL_NET */ 120 { 0, CTL_DEBUG_MAXID }, /* CTL_DEBUG */ 121 { hwname, HW_MAXID }, /* CTL_HW */ 122#ifdef CTL_MACHDEP_NAMES 123 { machdepname, CPU_MAXID }, /* CTL_MACHDEP */ 124#else 125 { 0, 0 }, /* CTL_MACHDEP */ 126#endif 127 { username, USER_MAXID }, /* CTL_USER_NAMES */ 128 { ddbname, DBCTL_MAXID }, /* CTL_DDB_NAMES */ 129 { 0, 0 }, /* CTL_VFS */ 130}; 131 132int Aflag, aflag, nflag, wflag; 133 134/* 135 * Variables requiring special processing. 136 */ 137#define CLOCK 0x00000001 138#define BOOTTIME 0x00000002 139#define CHRDEV 0x00000004 140#define BLKDEV 0x00000008 141#define RNDSTATS 0x00000010 142#define BADDYNAMIC 0x00000020 143#define BIOSGEO 0x00000040 144#define BIOSDEV 0x00000080 145#define MAJ2DEV 0x00000100 146 147/* prototypes */ 148void debuginit __P((void)); 149void listall __P((char *, struct list *)); 150void parse __P((char *, int)); 151void parse_baddynamic __P((int *, size_t, char *, void **, size_t *, int, int)); 152void usage __P((void)); 153int findname __P((char *, char *, char **, struct list *)); 154int sysctl_inet __P((char *, char **, int *, int, int *)); 155int sysctl_ipsec __P((char *, char **, int *, int, int *)); 156int sysctl_ipx __P((char *, char **, int *, int, int *)); 157int sysctl_fs __P((char *, char **, int *, int, int *)); 158int sysctl_bios __P((char *, char **, int *, int, int *)); 159void vfsinit __P((void)); 160 161int 162main(argc, argv) 163 int argc; 164 char *argv[]; 165{ 166 int ch, lvl1; 167 168 while ((ch = getopt(argc, argv, "Aanw")) != -1) { 169 switch (ch) { 170 171 case 'A': 172 Aflag = 1; 173 break; 174 175 case 'a': 176 aflag = 1; 177 break; 178 179 case 'n': 180 nflag = 1; 181 break; 182 183 case 'w': 184 wflag = 1; 185 break; 186 187 default: 188 usage(); 189 } 190 } 191 argc -= optind; 192 argv += optind; 193 194 if (argc == 0 && (Aflag || aflag)) { 195 debuginit(); 196 vfsinit(); 197 for (lvl1 = 1; lvl1 < CTL_MAXID; lvl1++) 198 listall(topname[lvl1].ctl_name, &secondlevel[lvl1]); 199 exit(0); 200 } 201 if (argc == 0) 202 usage(); 203 for (; *argv != NULL; ++argv) 204 parse(*argv, 1); 205 exit(0); 206} 207 208/* 209 * List all variables known to the system. 210 */ 211void 212listall(prefix, lp) 213 char *prefix; 214 struct list *lp; 215{ 216 int lvl2; 217 char *cp, name[BUFSIZ]; 218 219 if (lp->list == NULL) 220 return; 221 (void)strncpy(name, prefix, BUFSIZ-1); 222 name[BUFSIZ-1] = '\0'; 223 cp = &name[strlen(name)]; 224 *cp++ = '.'; 225 for (lvl2 = 0; lvl2 < lp->size; lvl2++) { 226 if (lp->list[lvl2].ctl_name == NULL) 227 continue; 228 (void)strcpy(cp, lp->list[lvl2].ctl_name); 229 parse(name, Aflag); 230 } 231} 232 233/* 234 * Parse a name into a MIB entry. 235 * Lookup and print out the MIB entry if it exists. 236 * Set a new value if requested. 237 */ 238void 239parse(string, flags) 240 char *string; 241 int flags; 242{ 243 int indx, type, state, intval; 244 size_t size, len, newsize = 0; 245 int special = 0; 246 void *newval = 0; 247 quad_t quadval; 248 struct list *lp; 249 struct vfsconf vfc; 250 int mib[CTL_MAXNAME]; 251 char *cp, *bufp, buf[BUFSIZ]; 252 253 (void)strncpy(buf, string, sizeof(buf) - 1); 254 buf[sizeof(buf) - 1] = '\0'; 255 bufp = buf; 256 if ((cp = strchr(string, '=')) != NULL) { 257 if (!wflag) 258 errx(2, "must specify -w to set variables"); 259 *strchr(buf, '=') = '\0'; 260 *cp++ = '\0'; 261 while (isspace(*cp)) 262 cp++; 263 newval = cp; 264 newsize = strlen(cp); 265 } 266 if ((indx = findname(string, "top", &bufp, &toplist)) == -1) 267 return; 268 mib[0] = indx; 269 if (indx == CTL_VFS) 270 vfsinit(); 271 if (indx == CTL_DEBUG) 272 debuginit(); 273 lp = &secondlevel[indx]; 274 if (lp->list == 0) { 275 warnx("%s: class is not implemented", topname[indx].ctl_name); 276 return; 277 } 278 if (bufp == NULL) { 279 listall(topname[indx].ctl_name, lp); 280 return; 281 } 282 if ((indx = findname(string, "second", &bufp, lp)) == -1) 283 return; 284 mib[1] = indx; 285 type = lp->list[indx].ctl_type; 286 len = 2; 287 switch (mib[0]) { 288 289 case CTL_KERN: 290 switch (mib[1]) { 291 case KERN_PROF: 292 mib[2] = GPROF_STATE; 293 size = sizeof(state); 294 if (sysctl(mib, 3, &state, &size, NULL, 0) == -1) { 295 if (flags == 0) 296 return; 297 if (!nflag) 298 (void)printf("%s: ", string); 299 (void)puts("kernel is not compiled for profiling"); 300 return; 301 } 302 if (!nflag) 303 (void)printf("%s = %s\n", string, 304 state == GMON_PROF_OFF ? "off" : "running"); 305 return; 306 case KERN_VNODE: 307 case KERN_FILE: 308 if (flags == 0) 309 return; 310 warnx("use pstat to view %s information", string); 311 return; 312 case KERN_PROC: 313 if (flags == 0) 314 return; 315 warnx("use ps to view %s information", string); 316 return; 317 case KERN_NTPTIME: 318 if (flags == 0) 319 return; 320 warnx("use xntpdc to view %s information", string); 321 return; 322 case KERN_CLOCKRATE: 323 special |= CLOCK; 324 break; 325 case KERN_BOOTTIME: 326 special |= BOOTTIME; 327 break; 328 case KERN_RND: 329 special |= RNDSTATS; 330 break; 331 } 332 break; 333 334 case CTL_HW: 335 break; 336 337 case CTL_VM: 338 if (mib[1] == VM_LOADAVG) { 339 double loads[3]; 340 341 getloadavg(loads, 3); 342 if (!nflag) 343 (void)printf("%s = ", string); 344 (void)printf("%.2f %.2f %.2f\n", loads[0], 345 loads[1], loads[2]); 346 return; 347 } else if (mib[1] == VM_PSSTRINGS) { 348 struct _ps_strings _ps; 349 350 len = sizeof(_ps); 351 if (sysctl(mib, 2, &_ps, &len, NULL, 0) == -1) { 352 if (flags == 0) 353 return; 354 if (!nflag) 355 (void)printf("%s: ", string); 356 (void)puts("can't find ps strings"); 357 return; 358 } 359 if (!nflag) 360 (void)printf("%s = ", string); 361 (void)printf("%p\n", _ps.val); 362 return; 363 } 364 if (flags == 0) 365 return; 366 warnx("use vmstat or systat to view %s information", string); 367 return; 368 369 case CTL_NET: 370 if (mib[1] == PF_INET) { 371 len = sysctl_inet(string, &bufp, mib, flags, &type); 372 if (len < 0) 373 return; 374 375 if ((mib[2] == IPPROTO_TCP && 376 mib[3] == TCPCTL_BADDYNAMIC) || 377 (mib[2] == IPPROTO_UDP && 378 mib[3] == UDPCTL_BADDYNAMIC)) { 379 380 special |= BADDYNAMIC; 381 382 if (newval != NULL) 383 parse_baddynamic(mib, len, string, 384 &newval, &newsize, flags, nflag); 385 } 386 break; 387 } 388 if (mib[1] == PF_IPX) { 389 len = sysctl_ipx(string, &bufp, mib, flags, &type); 390 if (len >= 0) 391 break; 392 return; 393 } 394 if (mib[1] == PF_KEY_V2) { 395 len = sysctl_ipsec(string, &bufp, mib, flags, &type); 396 if (len >= 0) 397 break; 398 return; 399 } 400 if (flags == 0) 401 return; 402 warnx("use netstat to view %s information", string); 403 return; 404 405 case CTL_DEBUG: 406 mib[2] = CTL_DEBUG_VALUE; 407 len = 3; 408 break; 409 410 case CTL_MACHDEP: 411#ifdef CPU_CONSDEV 412 if (mib[1] == CPU_CONSDEV) 413 special |= CHRDEV; 414#endif 415#ifdef CPU_BLK2CHR 416 if (mib[1] == CPU_BLK2CHR) { 417 if (bufp == NULL) 418 return; 419 mib[2] = makedev(atoi(bufp),0); 420 bufp = NULL; 421 len = 3; 422 special |= CHRDEV; 423 break; 424 } 425#endif 426#ifdef CPU_CHR2BLK 427 if (mib[1] == CPU_CHR2BLK) { 428 if (bufp == NULL) 429 return; 430 mib[2] = makedev(atoi(bufp),0); 431 bufp = NULL; 432 len = 3; 433 special |= BLKDEV; 434 break; 435 } 436#endif 437#ifdef CPU_BIOS 438 if (mib[1] == CPU_BIOS) { 439 len = sysctl_bios(string, &bufp, mib, flags, &type); 440 if (len < 0) 441 return; 442 if (mib[2] == BIOS_DEV) 443 special |= BIOSDEV; 444 if (mib[2] == BIOS_DISKINFO) 445 special |= BIOSGEO; 446 break; 447 } 448#endif 449 break; 450 451 case CTL_FS: 452 len = sysctl_fs(string, &bufp, mib, flags, &type); 453 if (len >= 0) 454 break; 455 return; 456 457 case CTL_VFS: 458 mib[3] = mib[1]; 459 mib[1] = VFS_GENERIC; 460 mib[2] = VFS_CONF; 461 len = 4; 462 size = sizeof vfc; 463 if (sysctl(mib, 4, &vfc, &size, (void *)0, (size_t)0) < 0) { 464 if (errno != EOPNOTSUPP) 465 perror("vfs print"); 466 return; 467 } 468 if (flags == 0 && vfc.vfc_refcount == 0) 469 return; 470 if (!nflag) 471 fprintf(stdout, "%s has %d mounted instance%s\n", 472 string, vfc.vfc_refcount, 473 vfc.vfc_refcount != 1 ? "s" : ""); 474 else 475 fprintf(stdout, "%d\n", vfc.vfc_refcount); 476 return; 477 478 case CTL_USER: 479 case CTL_DDB: 480 break; 481 482 default: 483 warnx("illegal top level value: %d", mib[0]); 484 return; 485 486 } 487 if (bufp) { 488 warnx("name %s in %s is unknown", bufp, string); 489 return; 490 } 491 if (newsize > 0) { 492 switch (type) { 493 case CTLTYPE_INT: 494 intval = atoi(newval); 495 newval = &intval; 496 newsize = sizeof(intval); 497 break; 498 499 case CTLTYPE_QUAD: 500 (void)sscanf(newval, "%qd", &quadval); 501 newval = &quadval; 502 newsize = sizeof(quadval); 503 break; 504 } 505 } 506 size = BUFSIZ; 507 if (sysctl(mib, len, buf, &size, newsize ? newval : 0, newsize) == -1) { 508 if (flags == 0) 509 return; 510 switch (errno) { 511 case EOPNOTSUPP: 512 warnx("%s: value is not available", string); 513 return; 514 case ENOTDIR: 515 warnx("%s: specification is incomplete", string); 516 return; 517 case ENOMEM: 518 warnx("%s: type is unknown to this program", string); 519 return; 520 case ENXIO: 521 if (special & BIOSGEO) 522 return; 523 default: 524 warn(string); 525 return; 526 } 527 } 528 if (special & CLOCK) { 529 struct clockinfo *clkp = (struct clockinfo *)buf; 530 531 if (!nflag) 532 (void)printf("%s = ", string); 533 (void)printf( 534 "tick = %d, tickadj = %d, hz = %d, profhz = %d, stathz = %d\n", 535 clkp->tick, clkp->tickadj, clkp->hz, clkp->profhz, clkp->stathz); 536 return; 537 } 538 if (special & BOOTTIME) { 539 struct timeval *btp = (struct timeval *)buf; 540 time_t boottime; 541 542 if (!nflag) { 543 boottime = btp->tv_sec; 544 (void)printf("%s = %s", string, ctime(&boottime)); 545 } else 546 (void)printf("%ld\n", btp->tv_sec); 547 return; 548 } 549 if (special & BLKDEV) { 550 dev_t dev = *(dev_t *)buf; 551 552 if (!nflag) 553 (void)printf("%s = %s\n", string, 554 devname(dev, S_IFBLK)); 555 else 556 (void)printf("0x%x\n", dev); 557 return; 558 } 559 if (special & CHRDEV) { 560 dev_t dev = *(dev_t *)buf; 561 562 if (!nflag) 563 (void)printf("%s = %s\n", string, 564 devname(dev, S_IFCHR)); 565 else 566 (void)printf("0x%x\n", dev); 567 return; 568 } 569#ifdef CPU_BIOS 570 if (special & BIOSGEO) { 571 bios_diskinfo_t *pdi = (bios_diskinfo_t *)buf; 572 573 if (!nflag) 574 (void)printf("%s = ", string); 575 (void)printf("bootdev = 0x%x, " 576 "cylinders = %u, heads = %u, sectors = %u\n", 577 pdi->bsd_dev, pdi->bios_cylinders, pdi->bios_heads, 578 pdi->bios_sectors); 579 return; 580 } 581 if (special & BIOSDEV) { 582 int dev = *(int*)buf; 583 584 if (!nflag) 585 (void)printf("%s = ", string); 586 (void) printf("0x%02x\n", dev); 587 return; 588 } 589#endif 590 if (special & RNDSTATS) { 591 struct rndstats *rndstats = (struct rndstats *)buf; 592 593 if (!nflag) 594 (void)printf("%s = ", string); 595 (void)printf( 596 "%u %u %u %u %u %u %u %u %u %u %u %u %u %u %u %u\n", 597 rndstats->rnd_total, rndstats->rnd_used, 598 rndstats->arc4_reads, rndstats->rnd_timer, 599 rndstats->rnd_mouse, rndstats->rnd_tty, 600 rndstats->rnd_disk, rndstats->rnd_net, 601 rndstats->rnd_reads, rndstats->rnd_waits, 602 rndstats->rnd_enqs, rndstats->rnd_deqs, 603 rndstats->rnd_drops, rndstats->rnd_drople, 604 rndstats->rnd_asleep, rndstats->rnd_queued); 605 return; 606 } 607 if (special & BADDYNAMIC) { 608 in_port_t port, lastport; 609 u_int32_t *baddynamic = (u_int32_t *)buf; 610 611 if (!nflag) 612 (void)printf("%s%s", string, newsize ? ": " : " = "); 613 lastport = 0; 614 for (port = IPPORT_RESERVED/2; port < IPPORT_RESERVED; port++) 615 if (DP_ISSET(baddynamic, port)) { 616 (void)printf("%s%hd", lastport ? "," : "", 617 port); 618 lastport = port; 619 } 620 if (newsize != 0) { 621 if (!nflag) 622 fputs(" -> ", stdout); 623 baddynamic = (u_int32_t *)newval; 624 lastport = 0; 625 for (port = IPPORT_RESERVED/2; port < IPPORT_RESERVED; 626 port++) 627 if (DP_ISSET(baddynamic, port)) { 628 (void)printf("%s%hd", 629 lastport ? "," : "", port); 630 lastport = port; 631 } 632 } 633 (void)putchar('\n'); 634 return; 635 } 636 switch (type) { 637 case CTLTYPE_INT: 638 if (newsize == 0) { 639 if (!nflag) 640 (void)printf("%s = ", string); 641 (void)printf("%d\n", *(int *)buf); 642 } else { 643 if (!nflag) 644 (void)printf("%s: %d -> ", string, 645 *(int *)buf); 646 (void)printf("%d\n", *(int *)newval); 647 } 648 return; 649 650 case CTLTYPE_STRING: 651 if (newsize == 0) { 652 if (!nflag) 653 (void)printf("%s = ", string); 654 (void)puts(buf); 655 } else { 656 if (!nflag) 657 (void)printf("%s: %s -> ", string, buf); 658 (void)puts((char *)newval); 659 } 660 return; 661 662 case CTLTYPE_QUAD: 663 if (newsize == 0) { 664 if (!nflag) 665 (void)printf("%s = ", string); 666 (void)printf("%qd\n", *(quad_t *)buf); 667 } else { 668 if (!nflag) 669 (void)printf("%s: %qd -> ", string, 670 *(quad_t *)buf); 671 (void)printf("%qd\n", *(quad_t *)newval); 672 } 673 return; 674 675 case CTLTYPE_STRUCT: 676 warnx("%s: unknown structure returned", string); 677 return; 678 679 default: 680 case CTLTYPE_NODE: 681 warnx("%s: unknown type returned", string); 682 return; 683 } 684} 685 686void 687parse_baddynamic(mib, len, string, newvalp, newsizep, flags, nflag) 688 int mib[]; 689 size_t len; 690 char *string; 691 void **newvalp; 692 size_t *newsizep; 693 int flags; 694 int nflag; 695{ 696 static u_int32_t newbaddynamic[DP_MAPSIZE]; 697 in_port_t port; 698 size_t size; 699 char action, *cp; 700 701 if (strchr((char *)*newvalp, '+') || strchr((char *)*newvalp, '-')) { 702 size = sizeof(newbaddynamic); 703 if (sysctl(mib, len, newbaddynamic, &size, 0, 0) == -1) { 704 if (flags == 0) 705 return; 706 if (!nflag) 707 (void)printf("%s: ", string); 708 (void)puts("kernel does contain bad dynamic port tables"); 709 return; 710 } 711 712 while (*newvalp && (cp = strsep((char **)newvalp, ", \t")) && *cp) { 713 if (*cp != '+' && *cp != '-') 714 errx(1, "cannot mix +/- with full list"); 715 action = *cp++; 716 port = atoi(cp); 717 if (port < IPPORT_RESERVED/2 || port >= IPPORT_RESERVED) 718 errx(1, "invalid port, range is %d to %d", 719 IPPORT_RESERVED/2, IPPORT_RESERVED-1); 720 if (action == '+') 721 DP_SET(newbaddynamic, port); 722 else 723 DP_CLR(newbaddynamic, port); 724 } 725 } else { 726 (void)memset((void *)newbaddynamic, 0, sizeof(newbaddynamic)); 727 while (*newvalp && (cp = strsep((char **)newvalp, ", \t")) && *cp) { 728 port = atoi(cp); 729 if (port < IPPORT_RESERVED/2 || port >= IPPORT_RESERVED) 730 errx(1, "invalid port, range is %d to %d", 731 IPPORT_RESERVED/2, IPPORT_RESERVED-1); 732 DP_SET(newbaddynamic, port); 733 } 734 } 735 736 *newvalp = (void *)newbaddynamic; 737 *newsizep = sizeof(newbaddynamic); 738} 739 740/* 741 * Initialize the set of debugging names 742 */ 743void 744debuginit() 745{ 746 int mib[3], loc, i; 747 size_t size; 748 749 if (secondlevel[CTL_DEBUG].list != 0) 750 return; 751 secondlevel[CTL_DEBUG].list = debugname; 752 mib[0] = CTL_DEBUG; 753 mib[2] = CTL_DEBUG_NAME; 754 for (loc = lastused, i = 0; i < CTL_DEBUG_MAXID; i++) { 755 mib[1] = i; 756 size = BUFSIZ - loc; 757 if (sysctl(mib, 3, &names[loc], &size, NULL, 0) == -1) 758 continue; 759 debugname[i].ctl_name = &names[loc]; 760 debugname[i].ctl_type = CTLTYPE_INT; 761 loc += size; 762 } 763 lastused = loc; 764} 765 766/* 767 * Initialize the set of filesystem names 768 */ 769void 770vfsinit() 771{ 772 int mib[4], maxtypenum, cnt, loc, size; 773 struct vfsconf vfc; 774 size_t buflen; 775 776 if (secondlevel[CTL_VFS].list != 0) 777 return; 778 mib[0] = CTL_VFS; 779 mib[1] = VFS_GENERIC; 780 mib[2] = VFS_MAXTYPENUM; 781 buflen = 4; 782 if (sysctl(mib, 3, &maxtypenum, &buflen, (void *)0, (size_t)0) < 0) 783 return; 784 if ((vfsname = malloc(maxtypenum * sizeof(*vfsname))) == 0) 785 return; 786 memset(vfsname, 0, maxtypenum * sizeof(*vfsname)); 787 mib[2] = VFS_CONF; 788 buflen = sizeof vfc; 789 for (loc = lastused, cnt = 0; cnt < maxtypenum; cnt++) { 790 mib[3] = cnt; 791 if (sysctl(mib, 4, &vfc, &buflen, (void *)0, (size_t)0) < 0) { 792 if (errno == EOPNOTSUPP) 793 continue; 794 perror("vfsinit"); 795 free(vfsname); 796 return; 797 } 798 strcat(&names[loc], vfc.vfc_name); 799 vfsname[cnt].ctl_name = &names[loc]; 800 vfsname[cnt].ctl_type = CTLTYPE_INT; 801 size = strlen(vfc.vfc_name) + 1; 802 loc += size; 803 } 804 lastused = loc; 805 secondlevel[CTL_VFS].list = vfsname; 806 secondlevel[CTL_VFS].size = maxtypenum; 807 return; 808} 809 810struct ctlname posixname[] = CTL_FS_POSIX_NAMES; 811struct list fslist = { posixname, FS_POSIX_MAXID }; 812 813/* 814 * handle file system requests 815 */ 816int 817sysctl_fs(string, bufpp, mib, flags, typep) 818 char *string; 819 char **bufpp; 820 int mib[]; 821 int flags; 822 int *typep; 823{ 824 int indx; 825 826 if (*bufpp == NULL) { 827 listall(string, &fslist); 828 return(-1); 829 } 830 if ((indx = findname(string, "third", bufpp, &fslist)) == -1) 831 return(-1); 832 mib[2] = indx; 833 *typep = fslist.list[indx].ctl_type; 834 return(3); 835} 836 837#ifdef CPU_BIOS 838struct ctlname biosname[] = CTL_BIOS_NAMES; 839struct list bioslist = { biosname, BIOS_MAXID }; 840 841/* 842 * handle BIOS requests 843 */ 844int 845sysctl_bios(string, bufpp, mib, flags, typep) 846 char *string; 847 char **bufpp; 848 int mib[]; 849 int flags; 850 int *typep; 851{ 852 char *name; 853 int indx; 854 855 if (*bufpp == NULL) { 856 listall(string, &bioslist); 857 return(-1); 858 } 859 if ((indx = findname(string, "third", bufpp, &bioslist)) == -1) 860 return(-1); 861 mib[2] = indx; 862 if (indx == BIOS_DISKINFO) { 863 if (*bufpp == NULL) { 864 char name[BUFSIZ]; 865 866 /* scan all the bios devices */ 867 for (indx = 0; indx < 256; indx++) { 868 snprintf(name, sizeof(name), "%s.%u", 869 string, indx); 870 parse(name, 1); 871 } 872 return(-1); 873 } 874 if ((name = strsep(bufpp, ".")) == NULL) { 875 warnx("%s: incomplete specification", string); 876 return(-1); 877 } 878 mib[3] = atoi(name); 879 *typep = CTLTYPE_STRUCT; 880 return 4; 881 } else { 882 *typep = bioslist.list[indx].ctl_type; 883 return(3); 884 } 885} 886#endif 887 888struct ctlname encapname[] = PFKEYCTL_NAMES; 889struct ctlname ipsecname[] = CTL_IPSEC_NAMES; 890struct list ipseclist = { ipsecname, IPSECCTL_MAXID }; 891struct list ipsecvars[] = { 892 { encapname, IPSECCTL_MAXID }, 893}; 894 895/* 896 * handle ipsec requests 897 */ 898int 899sysctl_ipsec(string, bufpp, mib, flags, typep) 900 char *string; 901 char **bufpp; 902 int mib[]; 903 int flags; 904 int *typep; 905{ 906 struct list *lp; 907 int indx; 908 909 if (*bufpp == NULL) { 910 listall(string, &ipseclist); 911 return(-1); 912 } 913 if ((indx = findname(string, "third", bufpp, &ipseclist)) == -1) 914 return(-1); 915 mib[2] = indx; 916 if (indx <= IPSECCTL_MAXID && ipsecvars[indx].list != NULL) 917 lp = &ipsecvars[indx]; 918 else if (!flags) 919 return(-1); 920 else { 921 warnx("%s: no variables defined for this protocol", string); 922 return(-1); 923 } 924 if (*bufpp == NULL) { 925 listall(string, lp); 926 return(-1); 927 } 928 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 929 return(-1); 930 mib[3] = indx; 931 *typep = lp->list[indx].ctl_type; 932 return(4); 933} 934 935struct ctlname inetname[] = CTL_IPPROTO_NAMES; 936struct ctlname ipname[] = IPCTL_NAMES; 937struct ctlname icmpname[] = ICMPCTL_NAMES; 938struct ctlname tcpname[] = TCPCTL_NAMES; 939struct ctlname udpname[] = UDPCTL_NAMES; 940struct list inetlist = { inetname, IPPROTO_MAXID }; 941struct list inetvars[] = { 942 { ipname, IPCTL_MAXID }, /* ip */ 943 { icmpname, ICMPCTL_MAXID }, /* icmp */ 944 { 0, 0 }, /* igmp */ 945 { 0, 0 }, /* ggmp */ 946 { 0, 0 }, 947 { 0, 0 }, 948 { tcpname, TCPCTL_MAXID }, /* tcp */ 949 { 0, 0 }, 950 { 0, 0 }, /* egp */ 951 { 0, 0 }, 952 { 0, 0 }, 953 { 0, 0 }, 954 { 0, 0 }, /* pup */ 955 { 0, 0 }, 956 { 0, 0 }, 957 { 0, 0 }, 958 { 0, 0 }, 959 { udpname, UDPCTL_MAXID }, /* udp */ 960}; 961 962/* 963 * handle internet requests 964 */ 965int 966sysctl_inet(string, bufpp, mib, flags, typep) 967 char *string; 968 char **bufpp; 969 int mib[]; 970 int flags; 971 int *typep; 972{ 973 struct list *lp; 974 int indx; 975 976 if (*bufpp == NULL) { 977 listall(string, &inetlist); 978 return(-1); 979 } 980 if ((indx = findname(string, "third", bufpp, &inetlist)) == -1) 981 return(-1); 982 mib[2] = indx; 983 if (indx <= IPPROTO_UDP && inetvars[indx].list != NULL) 984 lp = &inetvars[indx]; 985 else if (!flags) 986 return(-1); 987 else { 988 warnx("%s: no variables defined for this protocol", string); 989 return(-1); 990 } 991 if (*bufpp == NULL) { 992 listall(string, lp); 993 return(-1); 994 } 995 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 996 return(-1); 997 mib[3] = indx; 998 *typep = lp->list[indx].ctl_type; 999 return(4); 1000} 1001 1002struct ctlname ipxname[] = CTL_IPXPROTO_NAMES; 1003struct ctlname ipxpname[] = IPXCTL_NAMES; 1004struct ctlname spxpname[] = SPXCTL_NAMES; 1005struct list ipxlist = { ipxname, IPXCTL_MAXID }; 1006struct list ipxvars[] = { 1007 { ipxpname, IPXCTL_MAXID }, /* ipx */ 1008 { 0, 0 }, 1009 { 0, 0 }, 1010 { 0, 0 }, 1011 { 0, 0 }, 1012 { spxpname, SPXCTL_MAXID }, 1013}; 1014 1015/* 1016 * Handle internet requests 1017 */ 1018int 1019sysctl_ipx(string, bufpp, mib, flags, typep) 1020 char *string; 1021 char **bufpp; 1022 int mib[]; 1023 int flags; 1024 int *typep; 1025{ 1026 struct list *lp; 1027 int indx; 1028 1029 if (*bufpp == NULL) { 1030 listall(string, &ipxlist); 1031 return(-1); 1032 } 1033 if ((indx = findname(string, "third", bufpp, &ipxlist)) == -1) 1034 return(-1); 1035 mib[2] = indx; 1036 if (indx <= IPXPROTO_SPX && ipxvars[indx].list != NULL) 1037 lp = &ipxvars[indx]; 1038 else if (!flags) 1039 return(-1); 1040 else { 1041 warnx("%s: no variables defined for this protocol", string); 1042 return(-1); 1043 } 1044 if (*bufpp == NULL) { 1045 listall(string, lp); 1046 return(-1); 1047 } 1048 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 1049 return(-1); 1050 mib[3] = indx; 1051 *typep = lp->list[indx].ctl_type; 1052 return(4); 1053} 1054 1055/* 1056 * Scan a list of names searching for a particular name. 1057 */ 1058int 1059findname(string, level, bufp, namelist) 1060 char *string; 1061 char *level; 1062 char **bufp; 1063 struct list *namelist; 1064{ 1065 char *name; 1066 int i; 1067 1068 if (namelist->list == 0 || (name = strsep(bufp, ".")) == NULL) { 1069 warnx("%s: incomplete specification", string); 1070 return(-1); 1071 } 1072 for (i = 0; i < namelist->size; i++) 1073 if (namelist->list[i].ctl_name != NULL && 1074 strcmp(name, namelist->list[i].ctl_name) == 0) 1075 break; 1076 if (i == namelist->size) { 1077 warnx("%s level name %s in %s is invalid", level, name, string); 1078 return(-1); 1079 } 1080 return(i); 1081} 1082 1083void 1084usage() 1085{ 1086 1087 (void)fprintf(stderr, "usage:\t%s\n\t%s\n\t%s\n\t%s\n", 1088 "sysctl [-n] variable ...", "sysctl [-n] -w variable=value ...", 1089 "sysctl [-n] -a", "sysctl [-n] -A"); 1090 exit(1); 1091} 1092