sysctl.c revision 1.51
1 /* $NetBSD: sysctl.c,v 1.51 2002/01/27 12:47:37 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 1.51 2002/01/27 12:47:37 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 <uvm/uvm_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 <sys/pipe.h> 104 105 #include <err.h> 106 #include <ctype.h> 107 #include <errno.h> 108 #include <stdio.h> 109 #include <stdlib.h> 110 #include <string.h> 111 #include <unistd.h> 112 #include <util.h> 113 114 struct ctlname topname[] = CTL_NAMES; 115 struct ctlname kernname[] = CTL_KERN_NAMES; 116 struct ctlname vmname[] = CTL_VM_NAMES; 117 struct ctlname vfsname[] = CTL_VFS_NAMES; 118 struct ctlname netname[] = CTL_NET_NAMES; 119 struct ctlname hwname[] = CTL_HW_NAMES; 120 struct ctlname username[] = CTL_USER_NAMES; 121 struct ctlname ddbname[] = CTL_DDB_NAMES; 122 struct ctlname debugname[CTL_DEBUG_MAXID]; 123 #ifdef CTL_MACHDEP_NAMES 124 struct ctlname machdepname[] = CTL_MACHDEP_NAMES; 125 #endif 126 /* this one is dummy, it's used only for '-a' or '-A' */ 127 struct ctlname procname[] = { {0, 0}, {"curproc", CTLTYPE_NODE} }; 128 129 char names[BUFSIZ]; 130 131 struct list { 132 struct ctlname *list; 133 int size; 134 }; 135 struct list toplist = { topname, CTL_MAXID }; 136 struct list secondlevel[] = { 137 { 0, 0 }, /* CTL_UNSPEC */ 138 { kernname, KERN_MAXID }, /* CTL_KERN */ 139 { vmname, VM_MAXID }, /* CTL_VM */ 140 { vfsname, VFS_MAXID }, /* CTL_VFS */ 141 { netname, NET_MAXID }, /* CTL_NET */ 142 { 0, CTL_DEBUG_MAXID }, /* CTL_DEBUG */ 143 { hwname, HW_MAXID }, /* CTL_HW */ 144 #ifdef CTL_MACHDEP_NAMES 145 { machdepname, CPU_MAXID }, /* CTL_MACHDEP */ 146 #else 147 { 0, 0 }, /* CTL_MACHDEP */ 148 #endif 149 { username, USER_MAXID }, /* CTL_USER_NAMES */ 150 { ddbname, DDBCTL_MAXID }, /* CTL_DDB_NAMES */ 151 { procname, 2 }, /* dummy name */ 152 { 0, 0}, 153 }; 154 155 int Aflag, aflag, nflag, wflag; 156 157 /* 158 * Variables requiring special processing. 159 */ 160 #define CLOCK 0x00000001 161 #define BOOTTIME 0x00000002 162 #define CONSDEV 0x00000004 163 #define DISKINFO 0x00000008 164 #define CPTIME 0x00000010 165 166 /* 167 * A dummy type for limits, which requires special parsing 168 */ 169 #define CTLTYPE_LIMIT ((~0x1) << 31) 170 171 int main __P((int, char *[])); 172 173 static void listall __P((const char *, struct list *)); 174 static void parse __P((char *, int)); 175 static void debuginit __P((void)); 176 static int sysctl_inet __P((char *, char **, int[], int, int *)); 177 #ifdef INET6 178 static int sysctl_inet6 __P((char *, char **, int[], int, int *)); 179 #endif 180 #ifdef IPSEC 181 static int sysctl_key __P((char *, char **, int[], int, int *)); 182 #endif 183 static int sysctl_vfs __P((char *, char **, int[], int, int *)); 184 static int sysctl_vfsgen __P((char *, char **, int[], int, int *)); 185 static int sysctl_mbuf __P((char *, char **, int[], int, int *)); 186 static int sysctl_pipe __P((char *, char **, int[], int, int *)); 187 static int sysctl_proc __P((char *, char **, int[], int, int *)); 188 static int findname __P((char *, char *, char **, struct list *)); 189 static void usage __P((void)); 190 191 #define USEAPP(s, a) printf("%s: use '%s' to view this information\n", s, a) 192 193 194 int 195 main(argc, argv) 196 int argc; 197 char *argv[]; 198 { 199 char *fn = NULL; 200 int ch, lvl1; 201 202 while ((ch = getopt(argc, argv, "Aaf:nw")) != -1) { 203 switch (ch) { 204 205 case 'A': 206 Aflag = 1; 207 break; 208 209 case 'a': 210 aflag = 1; 211 break; 212 213 case 'f': 214 fn = optarg; 215 wflag = 1; 216 break; 217 218 case 'n': 219 nflag = 1; 220 break; 221 222 case 'w': 223 wflag = 1; 224 break; 225 226 default: 227 usage(); 228 } 229 } 230 argc -= optind; 231 argv += optind; 232 233 if (Aflag || aflag) { 234 debuginit(); 235 for (lvl1 = 1; lvl1 < CTL_MAXID; lvl1++) 236 listall(topname[lvl1].ctl_name, &secondlevel[lvl1]); 237 return 0; 238 } 239 240 if (fn) { 241 FILE *fp; 242 char *l; 243 244 fp = fopen(fn, "r"); 245 if (fp == NULL) { 246 err(1, "%s", fn); 247 } else { 248 for (; (l = fparseln(fp, NULL, NULL, NULL, 0)) != NULL; 249 free(l)) { 250 if (*l) 251 parse(l, 1); 252 } 253 fclose(fp); 254 } 255 } else { 256 if (argc == 0) 257 usage(); 258 while (argc-- > 0) 259 parse(*argv++, 1); 260 } 261 return 0; 262 } 263 264 /* 265 * List all variables known to the system. 266 */ 267 static void 268 listall(prefix, lp) 269 const char *prefix; 270 struct list *lp; 271 { 272 int lvl2; 273 char *cp, name[BUFSIZ]; 274 275 if (lp->list == 0) 276 return; 277 strcpy(name, prefix); 278 cp = &name[strlen(name)]; 279 *cp++ = '.'; 280 for (lvl2 = 0; lvl2 < lp->size; lvl2++) { 281 if (lp->list[lvl2].ctl_name == 0) 282 continue; 283 strcpy(cp, lp->list[lvl2].ctl_name); 284 parse(name, Aflag); 285 } 286 } 287 288 /* 289 * Parse a name into a MIB entry. 290 * Lookup and print out the MIB entry if it exists. 291 * Set a new value if requested. 292 */ 293 static void 294 parse(string, flags) 295 char *string; 296 int flags; 297 { 298 int indx, type, state, len; 299 int special = 0; 300 void *newval = 0; 301 int intval, newsize = 0; 302 quad_t quadval; 303 size_t size; 304 struct list *lp; 305 int mib[CTL_MAXNAME]; 306 char *cp, *bufp, buf[BUFSIZ]; 307 double loads[3]; 308 309 bufp = buf; 310 snprintf(buf, BUFSIZ, "%s", string); 311 if ((cp = strchr(string, '=')) != NULL) { 312 if (!wflag) 313 errx(2, "Must specify -w to set variables"); 314 *strchr(buf, '=') = '\0'; 315 *cp++ = '\0'; 316 while (isspace((unsigned char) *cp)) 317 cp++; 318 newval = cp; 319 newsize = strlen(cp); 320 } 321 if ((indx = findname(string, "top", &bufp, &toplist)) == -1) 322 return; 323 mib[0] = indx; 324 if (indx == CTL_DEBUG) 325 debuginit(); 326 if (mib[0] == CTL_PROC) { 327 type = CTLTYPE_NODE; 328 len = 1; 329 } else { 330 lp = &secondlevel[indx]; 331 if (lp->list == 0) { 332 warnx("Class `%s' is not implemented", 333 topname[indx].ctl_name); 334 return; 335 } 336 if (bufp == NULL) { 337 listall(topname[indx].ctl_name, lp); 338 return; 339 } 340 if ((indx = findname(string, "second", &bufp, lp)) == -1) 341 return; 342 mib[1] = indx; 343 type = lp->list[indx].ctl_type; 344 len = 2; 345 } 346 switch (mib[0]) { 347 348 case CTL_KERN: 349 switch (mib[1]) { 350 case KERN_PROF: 351 mib[2] = GPROF_STATE; 352 size = sizeof state; 353 if (sysctl(mib, 3, &state, &size, NULL, 0) < 0) { 354 if (flags == 0) 355 return; 356 if (!nflag) 357 printf("%s: ", string); 358 printf( 359 "kernel is not compiled for profiling\n"); 360 return; 361 } 362 if (!nflag) 363 printf("%s: %s\n", string, 364 state == GMON_PROF_OFF ? "off" : "running"); 365 return; 366 case KERN_VNODE: 367 case KERN_FILE: 368 if (flags == 0) 369 return; 370 USEAPP(string, "pstat"); 371 return; 372 case KERN_PROC: 373 case KERN_PROC2: 374 case KERN_PROC_ARGS: 375 if (flags == 0) 376 return; 377 USEAPP(string, "ps"); 378 return; 379 case KERN_CLOCKRATE: 380 special |= CLOCK; 381 break; 382 case KERN_BOOTTIME: 383 special |= BOOTTIME; 384 break; 385 case KERN_NTPTIME: 386 if (flags == 0) 387 return; 388 USEAPP(string, "ntpdc -c kerninfo"); 389 return; 390 case KERN_MBUF: 391 len = sysctl_mbuf(string, &bufp, mib, flags, &type); 392 if (len < 0) 393 return; 394 break; 395 case KERN_CP_TIME: 396 special |= CPTIME; 397 break; 398 case KERN_MSGBUF: 399 if (flags == 0) 400 return; 401 USEAPP(string, "dmesg"); 402 return; 403 case KERN_CONSDEV: 404 special |= CONSDEV; 405 break; 406 case KERN_PIPE: 407 len = sysctl_pipe(string, &bufp, mib, flags, &type); 408 if (len < 0) 409 return; 410 break; 411 } 412 break; 413 414 case CTL_HW: 415 switch (mib[1]) { 416 case HW_DISKSTATS: 417 USEAPP(string, "iostat"); 418 return; 419 } 420 break; 421 422 case CTL_VM: 423 switch (mib[1]) { 424 case VM_LOADAVG: 425 getloadavg(loads, 3); 426 if (!nflag) 427 printf("%s: ", string); 428 printf("%.2f %.2f %.2f\n", loads[0], loads[1], 429 loads[2]); 430 return; 431 432 case VM_METER: 433 case VM_UVMEXP: 434 case VM_UVMEXP2: 435 if (flags) { 436 USEAPP(string, "vmstat' or 'systat"); 437 } 438 return; 439 } 440 break; 441 442 case CTL_NET: 443 if (mib[1] == PF_INET) { 444 len = sysctl_inet(string, &bufp, mib, flags, &type); 445 if (len >= 0) 446 break; 447 return; 448 } 449 #ifdef INET6 450 else if (mib[1] == PF_INET6) { 451 len = sysctl_inet6(string, &bufp, mib, flags, &type); 452 if (len >= 0) 453 break; 454 return; 455 } 456 #endif /* INET6 */ 457 #ifdef IPSEC 458 else if (mib[1] == PF_KEY) { 459 len = sysctl_key(string, &bufp, mib, flags, &type); 460 if (len >= 0) 461 break; 462 return; 463 } 464 #endif /* IPSEC */ 465 if (flags == 0) 466 return; 467 USEAPP(string, "netstat"); 468 return; 469 470 case CTL_DEBUG: 471 mib[2] = CTL_DEBUG_VALUE; 472 len = 3; 473 break; 474 475 case CTL_MACHDEP: 476 #ifdef CPU_CONSDEV 477 if (mib[1] == CPU_CONSDEV) 478 special |= CONSDEV; 479 #endif 480 #ifdef CPU_DISKINFO 481 if (mib[1] == CPU_DISKINFO) 482 special |= DISKINFO; 483 #endif 484 break; 485 486 case CTL_VFS: 487 if (mib[1] == VFS_GENERIC) 488 len = sysctl_vfsgen(string, &bufp, mib, flags, &type); 489 else 490 len = sysctl_vfs(string, &bufp, mib, flags, &type); 491 if (len < 0) 492 return; 493 494 /* XXX Special-case for NFS stats. */ 495 if (mib[1] == 2 && mib[2] == NFS_NFSSTATS) { 496 if (flags == 0) 497 return; 498 USEAPP(string, "nfsstat"); 499 return; 500 } 501 break; 502 503 case CTL_VENDOR: 504 case CTL_USER: 505 case CTL_DDB: 506 break; 507 case CTL_PROC: 508 len = sysctl_proc(string, &bufp, mib, flags, &type); 509 if (len < 0) 510 return; 511 break; 512 default: 513 warnx("Illegal top level value: %d", mib[0]); 514 return; 515 516 } 517 if (bufp) { 518 warnx("Name %s in %s is unknown", bufp, string); 519 return; 520 } 521 if (newsize > 0) { 522 switch (type) { 523 case CTLTYPE_INT: 524 intval = atoi(newval); 525 newval = &intval; 526 newsize = sizeof intval; 527 break; 528 529 case CTLTYPE_LIMIT: 530 if (strcmp(newval, "unlimited") == 0) { 531 quadval = RLIM_INFINITY; 532 newval = &quadval; 533 newsize = sizeof quadval; 534 break; 535 } 536 /* FALLTHROUGH */ 537 case CTLTYPE_QUAD: 538 sscanf(newval, "%lld", (long long *)&quadval); 539 newval = &quadval; 540 newsize = sizeof quadval; 541 break; 542 } 543 } 544 size = BUFSIZ; 545 if (sysctl(mib, len, buf, &size, newsize ? newval : 0, newsize) == -1) { 546 if (flags == 0) 547 return; 548 switch (errno) { 549 case EOPNOTSUPP: 550 printf("%s: the value is not available\n", string); 551 return; 552 case ENOTDIR: 553 printf("%s: the specification is incomplete\n", string); 554 return; 555 case ENOMEM: 556 printf("%s: this type is unknown to this program\n", 557 string); 558 return; 559 default: 560 printf("%s: sysctl() failed with %s\n", 561 string, strerror(errno)); 562 return; 563 } 564 } 565 if (special & CLOCK) { 566 struct clockinfo *clkp = (struct clockinfo *)buf; 567 568 if (!nflag) 569 printf("%s: ", string); 570 printf( 571 "tick = %d, tickadj = %d, hz = %d, profhz = %d, stathz = %d\n", 572 clkp->tick, clkp->tickadj, clkp->hz, clkp->profhz, clkp->stathz); 573 return; 574 } 575 if (special & BOOTTIME) { 576 struct timeval *btp = (struct timeval *)buf; 577 time_t boottime; 578 579 if (!nflag) { 580 boottime = btp->tv_sec; 581 /* ctime() provides the trailing newline */ 582 printf("%s = %s", string, ctime(&boottime)); 583 } else 584 printf("%ld\n", (long) btp->tv_sec); 585 return; 586 } 587 if (special & CONSDEV) { 588 dev_t dev = *(dev_t *)buf; 589 590 if (!nflag) 591 printf("%s = %s\n", string, devname(dev, S_IFCHR)); 592 else 593 printf("0x%x\n", dev); 594 return; 595 } 596 if (special & DISKINFO) { 597 /* Don't know a good way to deal with this i386 specific one */ 598 return; 599 } 600 if (special & CPTIME) { 601 u_int64_t *cp_time = (u_int64_t *)buf; 602 603 if (!nflag) 604 printf("%s: ", string); 605 printf("user = %llu, nice = %llu, sys = %llu, intr = %llu, " 606 "idle = %llu\n", (unsigned long long) cp_time[0], 607 (unsigned long long) cp_time[1], 608 (unsigned long long) cp_time[2], 609 (unsigned long long) cp_time[3], 610 (unsigned long long) cp_time[4]); 611 return; 612 } 613 614 switch (type) { 615 case CTLTYPE_INT: 616 if (newsize == 0) { 617 if (!nflag) 618 printf("%s = ", string); 619 printf("%d\n", *(int *)buf); 620 } else { 621 if (!nflag) 622 printf("%s: %d -> ", string, *(int *)buf); 623 printf("%d\n", *(int *)newval); 624 } 625 return; 626 627 case CTLTYPE_STRING: 628 if (newsize == 0) { 629 if (!nflag) 630 printf("%s = ", string); 631 printf("%s\n", buf); 632 } else { 633 if (!nflag) 634 printf("%s: %s -> ", string, buf); 635 printf("%s\n", (char *) newval); 636 } 637 return; 638 639 case CTLTYPE_LIMIT: 640 #define PRINTF_LIMIT(lim) { \ 641 if ((lim) == RLIM_INFINITY) \ 642 printf("unlimited");\ 643 else \ 644 printf("%lld", (long long)(lim)); \ 645 } 646 647 if (newsize == 0) { 648 if (!nflag) 649 printf("%s = ", string); 650 PRINTF_LIMIT((long long)(*(quad_t *)buf)); 651 } else { 652 if (!nflag) { 653 printf("%s: ", string); 654 PRINTF_LIMIT((long long)(*(quad_t *)buf)); 655 printf(" -> "); 656 } 657 PRINTF_LIMIT((long long)(*(quad_t *)newval)); 658 } 659 printf("\n"); 660 return; 661 #undef PRINTF_LIMIT 662 663 case CTLTYPE_QUAD: 664 if (newsize == 0) { 665 if (!nflag) 666 printf("%s = ", string); 667 printf("%lld\n", (long long)(*(quad_t *)buf)); 668 } else { 669 if (!nflag) 670 printf("%s: %lld -> ", string, 671 (long long)(*(quad_t *)buf)); 672 printf("%lld\n", (long long)(*(quad_t *)newval)); 673 } 674 return; 675 676 case CTLTYPE_STRUCT: 677 warnx("%s: unknown structure returned", string); 678 return; 679 680 default: 681 case CTLTYPE_NODE: 682 warnx("%s: unknown type returned", string); 683 return; 684 } 685 } 686 687 /* 688 * Initialize the set of debugging names 689 */ 690 static void 691 debuginit() 692 { 693 int mib[3], loc, i; 694 size_t size; 695 696 if (secondlevel[CTL_DEBUG].list != 0) 697 return; 698 secondlevel[CTL_DEBUG].list = debugname; 699 mib[0] = CTL_DEBUG; 700 mib[2] = CTL_DEBUG_NAME; 701 for (loc = 0, i = 0; i < CTL_DEBUG_MAXID; i++) { 702 mib[1] = i; 703 size = BUFSIZ - loc; 704 if (sysctl(mib, 3, &names[loc], &size, NULL, 0) == -1) 705 continue; 706 debugname[i].ctl_name = &names[loc]; 707 debugname[i].ctl_type = CTLTYPE_INT; 708 loc += size; 709 } 710 } 711 712 struct ctlname inetname[] = CTL_IPPROTO_NAMES; 713 struct ctlname ipname[] = IPCTL_NAMES; 714 struct ctlname icmpname[] = ICMPCTL_NAMES; 715 struct ctlname tcpname[] = TCPCTL_NAMES; 716 struct ctlname udpname[] = UDPCTL_NAMES; 717 #ifdef IPSEC 718 struct ctlname ipsecname[] = IPSECCTL_NAMES; 719 #endif 720 struct list inetlist = { inetname, IPPROTO_MAXID }; 721 struct list inetvars[] = { 722 /*0*/ { ipname, IPCTL_MAXID }, /* ip */ 723 { icmpname, ICMPCTL_MAXID }, /* icmp */ 724 { 0, 0 }, /* igmp */ 725 { 0, 0 }, /* ggmp */ 726 { 0, 0 }, 727 { 0, 0 }, 728 { tcpname, TCPCTL_MAXID }, /* tcp */ 729 { 0, 0 }, 730 { 0, 0 }, /* egp */ 731 { 0, 0 }, 732 /*10*/ { 0, 0 }, 733 { 0, 0 }, 734 { 0, 0 }, /* pup */ 735 { 0, 0 }, 736 { 0, 0 }, 737 { 0, 0 }, 738 { 0, 0 }, 739 { udpname, UDPCTL_MAXID }, /* udp */ 740 { 0, 0 }, 741 { 0, 0 }, 742 /*20*/ { 0, 0 }, 743 { 0, 0 }, 744 { 0, 0 }, /* idp */ 745 { 0, 0 }, 746 { 0, 0 }, 747 { 0, 0 }, 748 { 0, 0 }, 749 { 0, 0 }, 750 { 0, 0 }, 751 { 0, 0 }, 752 /*30*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 753 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 754 /*40*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 755 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 756 #ifdef IPSEC 757 { ipsecname, IPSECCTL_MAXID }, /* esp - for backward compatibility */ 758 { ipsecname, IPSECCTL_MAXID }, /* ah */ 759 #else 760 { 0, 0 }, 761 { 0, 0 }, 762 #endif 763 }; 764 765 /* 766 * handle internet requests 767 */ 768 static int 769 sysctl_inet(string, bufpp, mib, flags, typep) 770 char *string; 771 char **bufpp; 772 int mib[]; 773 int flags; 774 int *typep; 775 { 776 struct list *lp; 777 int indx; 778 779 if (*bufpp == NULL) { 780 listall(string, &inetlist); 781 return (-1); 782 } 783 if ((indx = findname(string, "third", bufpp, &inetlist)) == -1) 784 return (-1); 785 mib[2] = indx; 786 if (indx <= IPPROTO_MAXID && inetvars[indx].list != NULL) 787 lp = &inetvars[indx]; 788 else if (!flags) 789 return (-1); 790 else { 791 printf("%s: no variables defined for protocol\n", string); 792 return (-1); 793 } 794 if (*bufpp == NULL) { 795 listall(string, lp); 796 return (-1); 797 } 798 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 799 return (-1); 800 mib[3] = indx; 801 *typep = lp->list[indx].ctl_type; 802 return (4); 803 } 804 805 #ifdef INET6 806 struct ctlname inet6name[] = CTL_IPV6PROTO_NAMES; 807 struct ctlname ip6name[] = IPV6CTL_NAMES; 808 struct ctlname icmp6name[] = ICMPV6CTL_NAMES; 809 struct ctlname udp6name[] = UDP6CTL_NAMES; 810 struct ctlname pim6name[] = PIM6CTL_NAMES; 811 struct ctlname ipsec6name[] = IPSEC6CTL_NAMES; 812 struct list inet6list = { inet6name, IPV6PROTO_MAXID }; 813 struct list inet6vars[] = { 814 /*0*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 815 { 0, 0 }, 816 { tcpname, TCPCTL_MAXID }, /* tcp6 */ 817 { 0, 0 }, 818 { 0, 0 }, 819 { 0, 0 }, 820 /*10*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 821 { 0, 0 }, 822 { 0, 0 }, 823 { udp6name, UDP6CTL_MAXID }, /* udp6 */ 824 { 0, 0 }, 825 { 0, 0 }, 826 /*20*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 827 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 828 /*30*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 829 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 830 /*40*/ { 0, 0 }, 831 { ip6name, IPV6CTL_MAXID }, /* ipv6 */ 832 { 0, 0 }, 833 { 0, 0 }, 834 { 0, 0 }, 835 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 836 #ifdef IPSEC 837 /*50*/ { ipsec6name, IPSECCTL_MAXID }, /* esp6 - for backward compatibility */ 838 { ipsec6name, IPSECCTL_MAXID }, /* ah6 */ 839 #else 840 { 0, 0 }, 841 { 0, 0 }, 842 #endif 843 { 0, 0 }, 844 { 0, 0 }, 845 { 0, 0 }, 846 { 0, 0 }, 847 { 0, 0 }, 848 { 0, 0 }, 849 { icmp6name, ICMPV6CTL_MAXID }, /* icmp6 */ 850 { 0, 0 }, 851 /*60*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 852 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 853 /*70*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 854 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 855 /*80*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 856 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 857 /*90*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 858 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 859 /*100*/ { 0, 0 }, 860 { 0, 0 }, 861 { 0, 0 }, 862 { pim6name, PIM6CTL_MAXID }, /* pim6 */ 863 }; 864 865 /* 866 * handle internet6 requests 867 */ 868 static int 869 sysctl_inet6(string, bufpp, mib, flags, typep) 870 char *string; 871 char **bufpp; 872 int mib[]; 873 int flags; 874 int *typep; 875 { 876 struct list *lp; 877 int indx; 878 879 if (*bufpp == NULL) { 880 listall(string, &inet6list); 881 return (-1); 882 } 883 if ((indx = findname(string, "third", bufpp, &inet6list)) == -1) 884 return (-1); 885 mib[2] = indx; 886 if (indx <= sizeof(inet6vars)/sizeof(inet6vars[0]) 887 && inet6vars[indx].list != NULL) { 888 lp = &inet6vars[indx]; 889 } else if (!flags) { 890 return (-1); 891 } else { 892 fprintf(stderr, "%s: no variables defined for this protocol\n", 893 string); 894 return (-1); 895 } 896 if (*bufpp == NULL) { 897 listall(string, lp); 898 return (-1); 899 } 900 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 901 return (-1); 902 mib[3] = indx; 903 *typep = lp->list[indx].ctl_type; 904 return (4); 905 } 906 #endif /* INET6 */ 907 908 #ifdef IPSEC 909 struct ctlname keynames[] = KEYCTL_NAMES; 910 struct list keylist = { keynames, KEYCTL_MAXID }; 911 912 /* 913 * handle key requests 914 */ 915 static int 916 sysctl_key(string, bufpp, mib, flags, typep) 917 char *string; 918 char **bufpp; 919 int mib[]; 920 int flags; 921 int *typep; 922 { 923 struct list *lp; 924 int indx; 925 926 if (*bufpp == NULL) { 927 listall(string, &keylist); 928 return (-1); 929 } 930 if ((indx = findname(string, "third", bufpp, &keylist)) == -1) 931 return (-1); 932 mib[2] = indx; 933 lp = &keylist; 934 *typep = lp->list[indx].ctl_type; 935 return 3; 936 } 937 #endif /*IPSEC*/ 938 939 struct ctlname ffsname[] = FFS_NAMES; 940 struct ctlname nfsname[] = NFS_NAMES; 941 struct list vfsvars[] = { 942 { 0, 0 }, /* generic */ 943 { ffsname, FFS_MAXID }, /* FFS */ 944 { nfsname, NFS_MAXID }, /* NFS */ 945 { 0, 0 }, /* MFS */ 946 { 0, 0 }, /* MSDOS */ 947 { 0, 0 }, /* LFS */ 948 { 0, 0 }, /* old LOFS */ 949 { 0, 0 }, /* FDESC */ 950 { 0, 0 }, /* PORTAL */ 951 { 0, 0 }, /* NULL */ 952 { 0, 0 }, /* UMAP */ 953 { 0, 0 }, /* KERNFS */ 954 { 0, 0 }, /* PROCFS */ 955 { 0, 0 }, /* AFS */ 956 { 0, 0 }, /* CD9660 */ 957 { 0, 0 }, /* UNION */ 958 { 0, 0 }, /* ADOSFS */ 959 { 0, 0 }, /* EXT2FS */ 960 { 0, 0 }, /* CODA */ 961 { 0, 0 }, /* FILECORE */ 962 }; 963 964 /* 965 * handle vfs requests 966 */ 967 static int 968 sysctl_vfs(string, bufpp, mib, flags, typep) 969 char *string; 970 char **bufpp; 971 int mib[]; 972 int flags; 973 int *typep; 974 { 975 struct list *lp = &vfsvars[mib[1]]; 976 int indx; 977 978 if (lp->list == NULL) { 979 if (flags) 980 printf("%s: no variables defined for file system\n", 981 string); 982 return (-1); 983 } 984 if (*bufpp == NULL) { 985 listall(string, lp); 986 return (-1); 987 } 988 if ((indx = findname(string, "third", bufpp, lp)) == -1) 989 return (-1); 990 mib[2] = indx; 991 *typep = lp->list[indx].ctl_type; 992 return (3); 993 } 994 995 struct ctlname vfsgenname[] = CTL_VFSGENCTL_NAMES; 996 struct list vfsgenvars = { vfsgenname, VFSGEN_MAXID }; 997 998 /* 999 * handle vfs.generic requests 1000 */ 1001 static int 1002 sysctl_vfsgen(string, bufpp, mib, flags, typep) 1003 char *string; 1004 char **bufpp; 1005 int mib[]; 1006 int flags; 1007 int *typep; 1008 { 1009 struct list *lp = &vfsgenvars; 1010 int indx; 1011 1012 if (*bufpp == NULL) { 1013 listall(string, lp); 1014 return (-1); 1015 } 1016 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1017 return (-1); 1018 /* Don't bother with VFS_CONF. */ 1019 if (indx == VFS_CONF) 1020 return (-1); 1021 mib[2] = indx; 1022 *typep = lp->list[indx].ctl_type; 1023 return (3); 1024 } 1025 1026 struct ctlname procnames[] = PROC_PID_NAMES; 1027 struct list procvars = {procnames, PROC_PID_MAXID}; 1028 struct ctlname proclimitnames[] = PROC_PID_LIMIT_NAMES; 1029 struct list proclimitvars = {proclimitnames, PROC_PID_LIMIT_MAXID}; 1030 struct ctlname proclimittypenames[] = PROC_PID_LIMIT_TYPE_NAMES; 1031 struct list proclimittypevars = {proclimittypenames, 1032 PROC_PID_LIMIT_TYPE_MAXID}; 1033 /* 1034 * handle kern.proc requests 1035 */ 1036 static int 1037 sysctl_proc(string, bufpp, mib, flags, typep) 1038 char *string; 1039 char **bufpp; 1040 int mib[]; 1041 int flags; 1042 int *typep; 1043 { 1044 char *cp, name[BUFSIZ]; 1045 struct list *lp; 1046 int indx; 1047 1048 if (*bufpp == NULL) { 1049 strcpy(name, string); 1050 cp = &name[strlen(name)]; 1051 *cp++ = '.'; 1052 strcpy(cp, "curproc"); 1053 parse(name, Aflag); 1054 return (-1); 1055 } 1056 cp = strsep(bufpp, "."); 1057 if (cp == NULL) { 1058 warnx("%s: incomplete specification", string); 1059 return (-1); 1060 } 1061 if (strcmp(cp, "curproc") == 0) { 1062 mib[1] = PROC_CURPROC; 1063 } else { 1064 mib[1] = atoi(cp); 1065 if (mib[1] == 0) { 1066 warnx("second level name %s in %s is invalid", cp, 1067 string); 1068 return (-1); 1069 } 1070 } 1071 *typep = CTLTYPE_NODE; 1072 lp = &procvars; 1073 if (*bufpp == NULL) { 1074 listall(string, lp); 1075 return (-1); 1076 } 1077 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1078 return (-1); 1079 mib[2] = indx; 1080 *typep = lp->list[indx].ctl_type; 1081 if (*typep != CTLTYPE_NODE) 1082 return(3); 1083 lp = &proclimitvars; 1084 if (*bufpp == NULL) { 1085 listall(string, lp); 1086 return (-1); 1087 } 1088 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 1089 return (-1); 1090 mib[3] = indx; 1091 lp = &proclimittypevars; 1092 if (*bufpp == NULL) { 1093 listall(string, lp); 1094 return (-1); 1095 } 1096 if ((indx = findname(string, "fifth", bufpp, lp)) == -1) 1097 return (-1); 1098 mib[4] = indx; 1099 *typep = CTLTYPE_LIMIT; 1100 return(5); 1101 } 1102 1103 struct ctlname mbufnames[] = CTL_MBUF_NAMES; 1104 struct list mbufvars = { mbufnames, MBUF_MAXID }; 1105 /* 1106 * handle kern.mbuf requests 1107 */ 1108 static int 1109 sysctl_mbuf(string, bufpp, mib, flags, typep) 1110 char *string; 1111 char **bufpp; 1112 int mib[]; 1113 int flags; 1114 int *typep; 1115 { 1116 struct list *lp = &mbufvars; 1117 int indx; 1118 1119 if (*bufpp == NULL) { 1120 listall(string, lp); 1121 return (-1); 1122 } 1123 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1124 return (-1); 1125 mib[2] = indx; 1126 *typep = lp->list[indx].ctl_type; 1127 return (3); 1128 } 1129 1130 struct ctlname pipenames[] = CTL_PIPE_NAMES; 1131 struct list pipevars = { pipenames, KERN_PIPE_MAXID }; 1132 /* 1133 * handle kern.mbuf requests 1134 */ 1135 static int 1136 sysctl_pipe(string, bufpp, mib, flags, typep) 1137 char *string; 1138 char **bufpp; 1139 int mib[]; 1140 int flags; 1141 int *typep; 1142 { 1143 struct list *lp = &pipevars; 1144 int indx; 1145 1146 if (*bufpp == NULL) { 1147 listall(string, lp); 1148 return (-1); 1149 } 1150 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1151 return (-1); 1152 mib[2] = indx; 1153 *typep = lp->list[indx].ctl_type; 1154 return (3); 1155 } 1156 1157 /* 1158 * Scan a list of names searching for a particular name. 1159 */ 1160 static int 1161 findname(string, level, bufp, namelist) 1162 char *string; 1163 char *level; 1164 char **bufp; 1165 struct list *namelist; 1166 { 1167 char *name; 1168 int i; 1169 1170 if (namelist->list == 0 || (name = strsep(bufp, ".")) == NULL) { 1171 warnx("%s: incomplete specification", string); 1172 return (-1); 1173 } 1174 for (i = 0; i < namelist->size; i++) 1175 if (namelist->list[i].ctl_name != NULL && 1176 strcmp(name, namelist->list[i].ctl_name) == 0) 1177 break; 1178 if (i == namelist->size) { 1179 warnx("%s level name %s in %s is invalid", 1180 level, name, string); 1181 return (-1); 1182 } 1183 return (i); 1184 } 1185 1186 static void 1187 usage() 1188 { 1189 const char *progname = getprogname(); 1190 1191 (void)fprintf(stderr, 1192 "Usage:\t%s %s\n\t%s %s\n\t%s %s\n\t%s %s\n\t%s %s\n", 1193 progname, "[-n] variable ...", 1194 progname, "[-n] -w variable=value ...", 1195 progname, "[-n] -a", 1196 progname, "[-n] -A", 1197 progname, "[-n] -f file"); 1198 exit(1); 1199 } 1200
Indexes created Sun Sep 21 20:09:37 GMT 2025