sysctl.c revision 1.62
1 /* $NetBSD: sysctl.c,v 1.62 2002/12/24 12:15:46 manu 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 1.62 2002/12/24 12:15:46 manu 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 #include "../../sys/compat/linux/common/linux_exec.h" 98 #include "../../sys/compat/irix/irix_sysctl.h" 99 #include "../../sys/compat/darwin/darwin_sysctl.h" 100 101 #ifdef IPSEC 102 #include <net/route.h> 103 #include <netinet6/ipsec.h> 104 #include <netkey/key_var.h> 105 #endif /* IPSEC */ 106 107 #include <sys/pipe.h> 108 109 #include <err.h> 110 #include <ctype.h> 111 #include <errno.h> 112 #include <stdio.h> 113 #include <stdlib.h> 114 #include <string.h> 115 #include <unistd.h> 116 117 struct ctlname topname[] = CTL_NAMES; 118 struct ctlname kernname[] = CTL_KERN_NAMES; 119 struct ctlname vmname[] = CTL_VM_NAMES; 120 struct ctlname vfsname[] = CTL_VFS_NAMES; 121 struct ctlname netname[] = CTL_NET_NAMES; 122 struct ctlname hwname[] = CTL_HW_NAMES; 123 struct ctlname username[] = CTL_USER_NAMES; 124 struct ctlname ddbname[] = CTL_DDB_NAMES; 125 struct ctlname debugname[CTL_DEBUG_MAXID]; 126 #ifdef CTL_MACHDEP_NAMES 127 struct ctlname machdepname[] = CTL_MACHDEP_NAMES; 128 #endif 129 struct ctlname emulname[] = CTL_EMUL_NAMES; 130 struct ctlname vendorname[] = { { 0, 0 } }; 131 132 /* this one is dummy, it's used only for '-a' or '-A' */ 133 struct ctlname procname[] = { {0, 0}, {"curproc", CTLTYPE_NODE} }; 134 135 char names[BUFSIZ]; 136 137 struct list { 138 struct ctlname *list; 139 int size; 140 }; 141 struct list toplist = { topname, CTL_MAXID }; 142 struct list secondlevel[] = { 143 { 0, 0 }, /* CTL_UNSPEC */ 144 { kernname, KERN_MAXID }, /* CTL_KERN */ 145 { vmname, VM_MAXID }, /* CTL_VM */ 146 { vfsname, VFS_MAXID }, /* CTL_VFS */ 147 { netname, NET_MAXID }, /* CTL_NET */ 148 { 0, CTL_DEBUG_MAXID }, /* CTL_DEBUG */ 149 { hwname, HW_MAXID }, /* CTL_HW */ 150 #ifdef CTL_MACHDEP_NAMES 151 { machdepname, CPU_MAXID }, /* CTL_MACHDEP */ 152 #else 153 { 0, 0 }, /* CTL_MACHDEP */ 154 #endif 155 { username, USER_MAXID }, /* CTL_USER_NAMES */ 156 { ddbname, DDBCTL_MAXID }, /* CTL_DDB_NAMES */ 157 { procname, 2 }, /* dummy name */ 158 { vendorname, 0 }, /* CTL_VENDOR_NAMES */ 159 { emulname, EMUL_MAXID }, /* CTL_EMUL_NAMES */ 160 161 { 0, 0}, 162 }; 163 164 int Aflag, aflag, nflag, qflag, wflag; 165 166 /* 167 * Variables requiring special processing. 168 */ 169 #define CLOCK 0x00000001 170 #define BOOTTIME 0x00000002 171 #define CONSDEV 0x00000004 172 #define DISKINFO 0x00000008 173 #define CPTIME 0x00000010 174 175 /* 176 * A dummy type for limits, which requires special parsing 177 */ 178 #define CTLTYPE_LIMIT ((~0x1) << 31) 179 180 int main(int, char *[]); 181 182 static void listall(const char *, struct list *); 183 static void parse(char *, int); 184 static void debuginit(void); 185 static int sysctl_inet(char *, char **, int[], int, int *); 186 #ifdef INET6 187 static int sysctl_inet6(char *, char **, int[], int, int *); 188 #endif 189 static int sysctl_vfs(char *, char **, int[], int, int *); 190 static int sysctl_proc(char *, char **, int[], int, int *); 191 static int sysctl_3rd(struct list *, char *, char **, int[], int, int *); 192 193 #ifdef IPSEC 194 struct ctlname keynames[] = KEYCTL_NAMES; 195 struct list keyvars = { keynames, KEYCTL_MAXID }; 196 #endif /*IPSEC*/ 197 struct ctlname vfsgenname[] = CTL_VFSGENCTL_NAMES; 198 struct list vfsgenvars = { vfsgenname, VFSGEN_MAXID }; 199 struct ctlname mbufnames[] = CTL_MBUF_NAMES; 200 struct list mbufvars = { mbufnames, MBUF_MAXID }; 201 struct ctlname pipenames[] = CTL_PIPE_NAMES; 202 struct list pipevars = { pipenames, KERN_PIPE_MAXID }; 203 struct ctlname tkstatnames[] = KERN_TKSTAT_NAMES; 204 struct list tkstatvars = { tkstatnames, KERN_TKSTAT_MAXID }; 205 206 static int sysctl_linux(char *, char **, int[], int, int *); 207 static int sysctl_irix(char *, char **, int[], int, int *); 208 static int sysctl_darwin(char *, char **, int[], int, int *); 209 static int findname(char *, char *, char **, struct list *); 210 static void usage(void); 211 212 #define USEAPP(s, a) \ 213 if (flags) printf("%s: use '%s' to view this information\n", s, a) 214 215 216 int 217 main(int argc, char *argv[]) 218 { 219 char *fn = NULL; 220 int ch, lvl1; 221 222 while ((ch = getopt(argc, argv, "Aaf:nqw")) != -1) { 223 switch (ch) { 224 225 case 'A': 226 Aflag = 1; 227 break; 228 229 case 'a': 230 aflag = 1; 231 break; 232 233 case 'f': 234 fn = optarg; 235 wflag = 1; 236 break; 237 238 case 'n': 239 nflag = 1; 240 break; 241 242 case 'q': 243 qflag = 1; 244 break; 245 246 case 'w': 247 wflag = 1; 248 break; 249 250 default: 251 usage(); 252 } 253 } 254 255 if (qflag && !wflag) 256 usage(); 257 258 argc -= optind; 259 argv += optind; 260 261 if (Aflag || aflag) { 262 debuginit(); 263 for (lvl1 = 1; lvl1 < CTL_MAXID; lvl1++) 264 listall(topname[lvl1].ctl_name, &secondlevel[lvl1]); 265 return 0; 266 } 267 268 if (fn) { 269 FILE *fp; 270 char *l; 271 272 fp = fopen(fn, "r"); 273 if (fp == NULL) { 274 err(1, "%s", fn); 275 } else { 276 for (; (l = fparseln(fp, NULL, NULL, NULL, 0)) != NULL; 277 free(l)) { 278 if (*l) 279 parse(l, 1); 280 } 281 fclose(fp); 282 } 283 } else { 284 if (argc == 0) 285 usage(); 286 while (argc-- > 0) 287 parse(*argv++, 1); 288 } 289 return 0; 290 } 291 292 /* 293 * List all variables known to the system. 294 */ 295 static void 296 listall(const char *prefix, struct list *lp) 297 { 298 int lvl2; 299 char *cp, name[BUFSIZ]; 300 301 if (lp->list == 0) 302 return; 303 strcpy(name, prefix); 304 cp = &name[strlen(name)]; 305 *cp++ = '.'; 306 for (lvl2 = 0; lvl2 < lp->size; lvl2++) { 307 if (lp->list[lvl2].ctl_name == 0) 308 continue; 309 strcpy(cp, lp->list[lvl2].ctl_name); 310 parse(name, Aflag); 311 } 312 } 313 314 /* 315 * Parse a name into a MIB entry. 316 * Lookup and print out the MIB entry if it exists. 317 * Set a new value if requested. 318 */ 319 static void 320 parse(char *string, int flags) 321 { 322 int indx, type, state, len; 323 int special = 0; 324 void *newval = 0; 325 int intval, newsize = 0; 326 quad_t quadval; 327 size_t size; 328 struct list *lp; 329 int mib[CTL_MAXNAME]; 330 char *cp, *bufp, buf[BUFSIZ]; 331 double loads[3]; 332 333 bufp = buf; 334 snprintf(buf, BUFSIZ, "%s", string); 335 if ((cp = strchr(string, '=')) != NULL) { 336 if (!wflag) 337 errx(2, "Must specify -w to set variables"); 338 *strchr(buf, '=') = '\0'; 339 *cp++ = '\0'; 340 while (isspace((unsigned char) *cp)) 341 cp++; 342 newval = cp; 343 newsize = strlen(cp); 344 } 345 if ((indx = findname(string, "top", &bufp, &toplist)) == -1) 346 return; 347 mib[0] = indx; 348 if (indx == CTL_DEBUG) 349 debuginit(); 350 if (mib[0] == CTL_PROC) { 351 type = CTLTYPE_NODE; 352 len = 1; 353 } else { 354 lp = &secondlevel[indx]; 355 if (lp->list == 0) { 356 warnx("Class `%s' is not implemented", 357 topname[indx].ctl_name); 358 return; 359 } 360 if (bufp == NULL) { 361 listall(topname[indx].ctl_name, lp); 362 return; 363 } 364 if ((indx = findname(string, "second", &bufp, lp)) == -1) 365 return; 366 mib[1] = indx; 367 type = lp->list[indx].ctl_type; 368 len = 2; 369 } 370 switch (mib[0]) { 371 372 case CTL_KERN: 373 switch (mib[1]) { 374 case KERN_PROF: 375 mib[2] = GPROF_STATE; 376 size = sizeof state; 377 if (sysctl(mib, 3, &state, &size, NULL, 0) < 0) { 378 if (flags == 0) 379 return; 380 if (!nflag) 381 printf("%s: ", string); 382 printf( 383 "kernel is not compiled for profiling\n"); 384 return; 385 } 386 if (!nflag) 387 printf("%s: %s\n", string, 388 state == GMON_PROF_OFF ? "off" : "running"); 389 return; 390 case KERN_VNODE: 391 case KERN_FILE: 392 USEAPP(string, "pstat"); 393 return; 394 case KERN_PROC: 395 case KERN_PROC2: 396 case KERN_PROC_ARGS: 397 USEAPP(string, "ps"); 398 return; 399 case KERN_CLOCKRATE: 400 special |= CLOCK; 401 break; 402 case KERN_BOOTTIME: 403 special |= BOOTTIME; 404 break; 405 case KERN_NTPTIME: 406 USEAPP(string, "ntpdc -c kerninfo"); 407 return; 408 case KERN_MBUF: 409 len = sysctl_3rd(&mbufvars, string, &bufp, mib, flags, 410 &type); 411 if (len < 0) 412 return; 413 break; 414 case KERN_CP_TIME: 415 special |= CPTIME; 416 break; 417 case KERN_MSGBUF: 418 USEAPP(string, "dmesg"); 419 return; 420 case KERN_CONSDEV: 421 special |= CONSDEV; 422 break; 423 case KERN_PIPE: 424 len = sysctl_3rd(&pipevars, string, &bufp, mib, flags, 425 &type); 426 if (len < 0) 427 return; 428 break; 429 case KERN_TKSTAT: 430 len = sysctl_3rd(&tkstatvars, string, &bufp, mib, flags, 431 &type); 432 if (len < 0) 433 return; 434 break; 435 } 436 break; 437 438 case CTL_HW: 439 switch (mib[1]) { 440 case HW_DISKSTATS: 441 USEAPP(string, "iostat"); 442 return; 443 } 444 break; 445 446 case CTL_VM: 447 switch (mib[1]) { 448 case VM_LOADAVG: 449 getloadavg(loads, 3); 450 if (!nflag) 451 printf("%s: ", string); 452 printf("%.2f %.2f %.2f\n", loads[0], loads[1], 453 loads[2]); 454 return; 455 456 case VM_METER: 457 case VM_UVMEXP: 458 case VM_UVMEXP2: 459 USEAPP(string, "vmstat' or 'systat"); 460 return; 461 } 462 break; 463 464 case CTL_NET: 465 if (mib[1] == PF_INET) { 466 len = sysctl_inet(string, &bufp, mib, flags, &type); 467 if (len >= 0) 468 break; 469 return; 470 } 471 #ifdef INET6 472 else if (mib[1] == PF_INET6) { 473 len = sysctl_inet6(string, &bufp, mib, flags, &type); 474 if (len >= 0) 475 break; 476 return; 477 } 478 #endif /* INET6 */ 479 #ifdef IPSEC 480 else if (mib[1] == PF_KEY) { 481 len = sysctl_3rd(&keyvars, string, &bufp, mib, flags, 482 &type); 483 if (len >= 0) 484 break; 485 return; 486 } 487 #endif /* IPSEC */ 488 if (flags == 0) 489 return; 490 USEAPP(string, "netstat"); 491 return; 492 493 case CTL_DEBUG: 494 mib[2] = CTL_DEBUG_VALUE; 495 len = 3; 496 break; 497 498 case CTL_MACHDEP: 499 #ifdef CPU_CONSDEV 500 if (mib[1] == CPU_CONSDEV) 501 special |= CONSDEV; 502 #endif 503 #ifdef CPU_DISKINFO 504 if (mib[1] == CPU_DISKINFO) 505 special |= DISKINFO; 506 #endif 507 break; 508 509 case CTL_VFS: 510 if (mib[1] == VFS_GENERIC) { 511 len = sysctl_3rd(&vfsgenvars, string, &bufp, mib, flags, 512 &type); 513 /* Don't bother with VFS_CONF. */ 514 if (mib[2] == VFS_CONF) 515 len = -1; 516 } else 517 len = sysctl_vfs(string, &bufp, mib, flags, &type); 518 if (len < 0) 519 return; 520 521 /* XXX Special-case for NFS stats. */ 522 if (mib[1] == 2 && mib[2] == NFS_NFSSTATS) { 523 USEAPP(string, "nfsstat"); 524 return; 525 } 526 break; 527 528 case CTL_VENDOR: 529 case CTL_USER: 530 case CTL_DDB: 531 break; 532 case CTL_PROC: 533 len = sysctl_proc(string, &bufp, mib, flags, &type); 534 if (len < 0) 535 return; 536 break; 537 case CTL_EMUL: 538 switch (mib[1]) { 539 case EMUL_IRIX: 540 len = sysctl_irix(string, &bufp, mib, flags, &type); 541 break; 542 543 case EMUL_LINUX: 544 len = sysctl_linux(string, &bufp, mib, flags, &type); 545 break; 546 547 case EMUL_DARWIN: 548 len = sysctl_darwin(string, &bufp, mib, flags, &type); 549 break; 550 551 default: 552 warnx("Illegal emul level value: %d", mib[0]); 553 break; 554 } 555 if (len < 0) 556 return; 557 break; 558 default: 559 warnx("Illegal top level value: %d", mib[0]); 560 return; 561 562 } 563 if (bufp) { 564 warnx("Name %s in %s is unknown", bufp, string); 565 return; 566 } 567 if (newsize > 0) { 568 switch (type) { 569 case CTLTYPE_INT: 570 intval = atoi(newval); 571 newval = &intval; 572 newsize = sizeof intval; 573 break; 574 575 case CTLTYPE_LIMIT: 576 if (strcmp(newval, "unlimited") == 0) { 577 quadval = RLIM_INFINITY; 578 newval = &quadval; 579 newsize = sizeof quadval; 580 break; 581 } 582 /* FALLTHROUGH */ 583 case CTLTYPE_QUAD: 584 sscanf(newval, "%lld", (long long *)&quadval); 585 newval = &quadval; 586 newsize = sizeof quadval; 587 break; 588 } 589 } 590 size = BUFSIZ; 591 if (sysctl(mib, len, buf, &size, newsize ? newval : 0, newsize) == -1) { 592 if (flags == 0) 593 return; 594 switch (errno) { 595 case EOPNOTSUPP: 596 printf("%s: the value is not available\n", string); 597 return; 598 case ENOTDIR: 599 printf("%s: the specification is incomplete\n", string); 600 return; 601 case ENOMEM: 602 printf("%s: this type is unknown to this program\n", 603 string); 604 return; 605 default: 606 printf("%s: sysctl() failed with %s\n", 607 string, strerror(errno)); 608 return; 609 } 610 } 611 if (qflag && (newsize > 0)) 612 return; 613 if (special & CLOCK) { 614 struct clockinfo *clkp = (struct clockinfo *)buf; 615 616 if (!nflag) 617 printf("%s: ", string); 618 printf( 619 "tick = %d, tickadj = %d, hz = %d, profhz = %d, stathz = %d\n", 620 clkp->tick, clkp->tickadj, clkp->hz, clkp->profhz, clkp->stathz); 621 return; 622 } 623 if (special & BOOTTIME) { 624 struct timeval *btp = (struct timeval *)buf; 625 time_t boottime; 626 627 if (!nflag) { 628 boottime = btp->tv_sec; 629 /* ctime() provides the trailing newline */ 630 printf("%s = %s", string, ctime(&boottime)); 631 } else 632 printf("%ld\n", (long) btp->tv_sec); 633 return; 634 } 635 if (special & CONSDEV) { 636 dev_t dev = *(dev_t *)buf; 637 638 if (!nflag) 639 printf("%s = %s\n", string, devname(dev, S_IFCHR)); 640 else 641 printf("0x%x\n", dev); 642 return; 643 } 644 if (special & DISKINFO) { 645 /* Don't know a good way to deal with this i386 specific one */ 646 return; 647 } 648 if (special & CPTIME) { 649 u_int64_t *cp_time = (u_int64_t *)buf; 650 651 if (!nflag) 652 printf("%s: ", string); 653 printf("user = %llu, nice = %llu, sys = %llu, intr = %llu, " 654 "idle = %llu\n", (unsigned long long) cp_time[0], 655 (unsigned long long) cp_time[1], 656 (unsigned long long) cp_time[2], 657 (unsigned long long) cp_time[3], 658 (unsigned long long) cp_time[4]); 659 return; 660 } 661 662 switch (type) { 663 case CTLTYPE_INT: 664 if (newsize == 0) { 665 if (!nflag) 666 printf("%s = ", string); 667 printf("%d\n", *(int *)buf); 668 } else { 669 if (!nflag) 670 printf("%s: %d -> ", string, *(int *)buf); 671 printf("%d\n", *(int *)newval); 672 } 673 return; 674 675 case CTLTYPE_STRING: 676 /* If sysctl() didn't return any data, don't print a string. */ 677 if (size == 0) 678 buf[0] = '\0'; 679 if (newsize == 0) { 680 if (!nflag) 681 printf("%s = ", string); 682 printf("%s\n", buf); 683 } else { 684 if (!nflag) 685 printf("%s: %s -> ", string, buf); 686 printf("%s\n", (char *) newval); 687 } 688 return; 689 690 case CTLTYPE_LIMIT: 691 #define PRINTF_LIMIT(lim) { \ 692 if ((lim) == RLIM_INFINITY) \ 693 printf("unlimited");\ 694 else \ 695 printf("%lld", (long long)(lim)); \ 696 } 697 698 if (newsize == 0) { 699 if (!nflag) 700 printf("%s = ", string); 701 PRINTF_LIMIT((long long)(*(quad_t *)buf)); 702 } else { 703 if (!nflag) { 704 printf("%s: ", string); 705 PRINTF_LIMIT((long long)(*(quad_t *)buf)); 706 printf(" -> "); 707 } 708 PRINTF_LIMIT((long long)(*(quad_t *)newval)); 709 } 710 printf("\n"); 711 return; 712 #undef PRINTF_LIMIT 713 714 case CTLTYPE_QUAD: 715 if (newsize == 0) { 716 if (!nflag) 717 printf("%s = ", string); 718 printf("%lld\n", (long long)(*(quad_t *)buf)); 719 } else { 720 if (!nflag) 721 printf("%s: %lld -> ", string, 722 (long long)(*(quad_t *)buf)); 723 printf("%lld\n", (long long)(*(quad_t *)newval)); 724 } 725 return; 726 727 case CTLTYPE_STRUCT: 728 warnx("%s: unknown structure returned", string); 729 return; 730 731 default: 732 case CTLTYPE_NODE: 733 warnx("%s: unknown type returned", string); 734 return; 735 } 736 } 737 738 /* 739 * Initialize the set of debugging names 740 */ 741 static void 742 debuginit(void) 743 { 744 int mib[3], loc, i; 745 size_t size; 746 747 if (secondlevel[CTL_DEBUG].list != 0) 748 return; 749 secondlevel[CTL_DEBUG].list = debugname; 750 mib[0] = CTL_DEBUG; 751 mib[2] = CTL_DEBUG_NAME; 752 for (loc = 0, i = 0; i < CTL_DEBUG_MAXID; i++) { 753 mib[1] = i; 754 size = BUFSIZ - loc; 755 if (sysctl(mib, 3, &names[loc], &size, NULL, 0) == -1) 756 continue; 757 debugname[i].ctl_name = &names[loc]; 758 debugname[i].ctl_type = CTLTYPE_INT; 759 loc += size; 760 } 761 } 762 763 struct ctlname inetname[] = CTL_IPPROTO_NAMES; 764 struct ctlname ipname[] = IPCTL_NAMES; 765 struct ctlname icmpname[] = ICMPCTL_NAMES; 766 struct ctlname tcpname[] = TCPCTL_NAMES; 767 struct ctlname udpname[] = UDPCTL_NAMES; 768 #ifdef IPSEC 769 struct ctlname ipsecname[] = IPSECCTL_NAMES; 770 #endif 771 struct list inetlist = { inetname, IPPROTO_MAXID }; 772 struct list inetvars[] = { 773 /*0*/ { ipname, IPCTL_MAXID }, /* ip */ 774 { icmpname, ICMPCTL_MAXID }, /* icmp */ 775 { 0, 0 }, /* igmp */ 776 { 0, 0 }, /* ggmp */ 777 { 0, 0 }, 778 { 0, 0 }, 779 { tcpname, TCPCTL_MAXID }, /* tcp */ 780 { 0, 0 }, 781 { 0, 0 }, /* egp */ 782 { 0, 0 }, 783 /*10*/ { 0, 0 }, 784 { 0, 0 }, 785 { 0, 0 }, /* pup */ 786 { 0, 0 }, 787 { 0, 0 }, 788 { 0, 0 }, 789 { 0, 0 }, 790 { udpname, UDPCTL_MAXID }, /* udp */ 791 { 0, 0 }, 792 { 0, 0 }, 793 /*20*/ { 0, 0 }, 794 { 0, 0 }, 795 { 0, 0 }, /* idp */ 796 { 0, 0 }, 797 { 0, 0 }, 798 { 0, 0 }, 799 { 0, 0 }, 800 { 0, 0 }, 801 { 0, 0 }, 802 { 0, 0 }, 803 /*30*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 804 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 805 /*40*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 806 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 807 #ifdef IPSEC 808 { ipsecname, IPSECCTL_MAXID }, /* esp - for backward compatibility */ 809 { ipsecname, IPSECCTL_MAXID }, /* ah */ 810 #else 811 { 0, 0 }, 812 { 0, 0 }, 813 #endif 814 }; 815 816 /* 817 * handle internet requests 818 */ 819 static int 820 sysctl_inet(char *string, char **bufpp, int mib[], int flags, int *typep) 821 { 822 struct list *lp; 823 int indx; 824 825 if (*bufpp == NULL) { 826 listall(string, &inetlist); 827 return (-1); 828 } 829 if ((indx = findname(string, "third", bufpp, &inetlist)) == -1) 830 return (-1); 831 mib[2] = indx; 832 if (indx <= IPPROTO_MAXID && inetvars[indx].list != NULL) 833 lp = &inetvars[indx]; 834 else if (!flags) 835 return (-1); 836 else { 837 printf("%s: no variables defined for protocol\n", string); 838 return (-1); 839 } 840 if (*bufpp == NULL) { 841 listall(string, lp); 842 return (-1); 843 } 844 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 845 return (-1); 846 mib[3] = indx; 847 *typep = lp->list[indx].ctl_type; 848 return (4); 849 } 850 851 #ifdef INET6 852 struct ctlname inet6name[] = CTL_IPV6PROTO_NAMES; 853 struct ctlname ip6name[] = IPV6CTL_NAMES; 854 struct ctlname icmp6name[] = ICMPV6CTL_NAMES; 855 struct ctlname udp6name[] = UDP6CTL_NAMES; 856 struct ctlname pim6name[] = PIM6CTL_NAMES; 857 struct ctlname ipsec6name[] = IPSEC6CTL_NAMES; 858 struct list inet6list = { inet6name, IPV6PROTO_MAXID }; 859 struct list inet6vars[] = { 860 /*0*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 861 { 0, 0 }, 862 { tcpname, TCPCTL_MAXID }, /* tcp6 */ 863 { 0, 0 }, 864 { 0, 0 }, 865 { 0, 0 }, 866 /*10*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 867 { 0, 0 }, 868 { 0, 0 }, 869 { udp6name, UDP6CTL_MAXID }, /* udp6 */ 870 { 0, 0 }, 871 { 0, 0 }, 872 /*20*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 873 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 874 /*30*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 875 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 876 /*40*/ { 0, 0 }, 877 { ip6name, IPV6CTL_MAXID }, /* ipv6 */ 878 { 0, 0 }, 879 { 0, 0 }, 880 { 0, 0 }, 881 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 882 #ifdef IPSEC 883 /*50*/ { ipsec6name, IPSECCTL_MAXID }, /* esp6 - for backward compatibility */ 884 { ipsec6name, IPSECCTL_MAXID }, /* ah6 */ 885 #else 886 { 0, 0 }, 887 { 0, 0 }, 888 #endif 889 { 0, 0 }, 890 { 0, 0 }, 891 { 0, 0 }, 892 { 0, 0 }, 893 { 0, 0 }, 894 { 0, 0 }, 895 { icmp6name, ICMPV6CTL_MAXID }, /* icmp6 */ 896 { 0, 0 }, 897 /*60*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 898 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 899 /*70*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 900 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 901 /*80*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 902 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 903 /*90*/ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 904 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, 905 /*100*/ { 0, 0 }, 906 { 0, 0 }, 907 { 0, 0 }, 908 { pim6name, PIM6CTL_MAXID }, /* pim6 */ 909 }; 910 911 /* 912 * handle internet6 requests 913 */ 914 static int 915 sysctl_inet6(char *string, char **bufpp, int mib[], int flags, int *typep) 916 { 917 struct list *lp; 918 int indx; 919 920 if (*bufpp == NULL) { 921 listall(string, &inet6list); 922 return (-1); 923 } 924 if ((indx = findname(string, "third", bufpp, &inet6list)) == -1) 925 return (-1); 926 mib[2] = indx; 927 if (indx <= sizeof(inet6vars)/sizeof(inet6vars[0]) 928 && inet6vars[indx].list != NULL) { 929 lp = &inet6vars[indx]; 930 } else if (!flags) { 931 return (-1); 932 } else { 933 fprintf(stderr, "%s: no variables defined for this protocol\n", 934 string); 935 return (-1); 936 } 937 if (*bufpp == NULL) { 938 listall(string, lp); 939 return (-1); 940 } 941 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 942 return (-1); 943 mib[3] = indx; 944 *typep = lp->list[indx].ctl_type; 945 return (4); 946 } 947 #endif /* INET6 */ 948 949 struct ctlname ffsname[] = FFS_NAMES; 950 struct ctlname nfsname[] = NFS_NAMES; 951 struct list vfsvars[] = { 952 { 0, 0 }, /* generic */ 953 { ffsname, FFS_MAXID }, /* FFS */ 954 { nfsname, NFS_MAXID }, /* NFS */ 955 { 0, 0 }, /* MFS */ 956 { 0, 0 }, /* MSDOS */ 957 { 0, 0 }, /* LFS */ 958 { 0, 0 }, /* old LOFS */ 959 { 0, 0 }, /* FDESC */ 960 { 0, 0 }, /* PORTAL */ 961 { 0, 0 }, /* NULL */ 962 { 0, 0 }, /* UMAP */ 963 { 0, 0 }, /* KERNFS */ 964 { 0, 0 }, /* PROCFS */ 965 { 0, 0 }, /* AFS */ 966 { 0, 0 }, /* CD9660 */ 967 { 0, 0 }, /* UNION */ 968 { 0, 0 }, /* ADOSFS */ 969 { 0, 0 }, /* EXT2FS */ 970 { 0, 0 }, /* CODA */ 971 { 0, 0 }, /* FILECORE */ 972 }; 973 974 /* 975 * handle vfs requests 976 */ 977 static int 978 sysctl_vfs(char *string, char **bufpp, int mib[], int flags, int *typep) 979 { 980 struct list *lp = &vfsvars[mib[1]]; 981 int indx; 982 983 if (lp->list == NULL) { 984 if (flags) 985 printf("%s: no variables defined for file system\n", 986 string); 987 return (-1); 988 } 989 if (*bufpp == NULL) { 990 listall(string, lp); 991 return (-1); 992 } 993 if ((indx = findname(string, "third", bufpp, lp)) == -1) 994 return (-1); 995 mib[2] = indx; 996 *typep = lp->list[indx].ctl_type; 997 return (3); 998 } 999 1000 /* 1001 * handle 3rd level requests. 1002 */ 1003 static int 1004 sysctl_3rd(struct list *lp, char *string, char **bufpp, int mib[], int flags, 1005 int *typep) 1006 { 1007 int indx; 1008 1009 if (*bufpp == NULL) { 1010 listall(string, lp); 1011 return (-1); 1012 } 1013 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1014 return (-1); 1015 mib[2] = indx; 1016 *typep = lp->list[indx].ctl_type; 1017 return (3); 1018 } 1019 1020 struct ctlname procnames[] = PROC_PID_NAMES; 1021 struct list procvars = {procnames, PROC_PID_MAXID}; 1022 struct ctlname proclimitnames[] = PROC_PID_LIMIT_NAMES; 1023 struct list proclimitvars = {proclimitnames, PROC_PID_LIMIT_MAXID}; 1024 struct ctlname proclimittypenames[] = PROC_PID_LIMIT_TYPE_NAMES; 1025 struct list proclimittypevars = {proclimittypenames, 1026 PROC_PID_LIMIT_TYPE_MAXID}; 1027 /* 1028 * handle kern.proc requests 1029 */ 1030 static int 1031 sysctl_proc(char *string, char **bufpp, int mib[], int flags, int *typep) 1032 { 1033 char *cp, name[BUFSIZ]; 1034 struct list *lp; 1035 int indx; 1036 1037 if (*bufpp == NULL) { 1038 strcpy(name, string); 1039 cp = &name[strlen(name)]; 1040 *cp++ = '.'; 1041 strcpy(cp, "curproc"); 1042 parse(name, Aflag); 1043 return (-1); 1044 } 1045 cp = strsep(bufpp, "."); 1046 if (cp == NULL) { 1047 warnx("%s: incomplete specification", string); 1048 return (-1); 1049 } 1050 if (strcmp(cp, "curproc") == 0) { 1051 mib[1] = PROC_CURPROC; 1052 } else { 1053 mib[1] = atoi(cp); 1054 if (mib[1] == 0) { 1055 warnx("second level name %s in %s is invalid", cp, 1056 string); 1057 return (-1); 1058 } 1059 } 1060 *typep = CTLTYPE_NODE; 1061 lp = &procvars; 1062 if (*bufpp == NULL) { 1063 listall(string, lp); 1064 return (-1); 1065 } 1066 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1067 return (-1); 1068 mib[2] = indx; 1069 *typep = lp->list[indx].ctl_type; 1070 if (*typep != CTLTYPE_NODE) 1071 return(3); 1072 lp = &proclimitvars; 1073 if (*bufpp == NULL) { 1074 listall(string, lp); 1075 return (-1); 1076 } 1077 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 1078 return (-1); 1079 mib[3] = indx; 1080 lp = &proclimittypevars; 1081 if (*bufpp == NULL) { 1082 listall(string, lp); 1083 return (-1); 1084 } 1085 if ((indx = findname(string, "fifth", bufpp, lp)) == -1) 1086 return (-1); 1087 mib[4] = indx; 1088 *typep = CTLTYPE_LIMIT; 1089 return(5); 1090 } 1091 1092 struct ctlname linuxnames[] = EMUL_LINUX_NAMES; 1093 struct list linuxvars = { linuxnames, EMUL_LINUX_MAXID }; 1094 struct ctlname linuxkernnames[] = EMUL_LINUX_KERN_NAMES; 1095 struct list linuxkernvars = { linuxkernnames, EMUL_LINUX_KERN_MAXID }; 1096 1097 static int 1098 sysctl_linux(char *string, char **bufpp, int mib[], int flags, int *typep) 1099 { 1100 struct list *lp = &linuxvars; 1101 int indx; 1102 char name[BUFSIZ], *cp; 1103 1104 if (*bufpp == NULL) { 1105 (void)strcpy(name, string); 1106 cp = &name[strlen(name)]; 1107 *cp++ = '.'; 1108 (void)strcpy(cp, "kern"); 1109 listall(name, &linuxkernvars); 1110 return (-1); 1111 } 1112 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1113 return (-1); 1114 mib[2] = indx; 1115 lp = &linuxkernvars; 1116 *typep = lp->list[indx].ctl_type; 1117 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 1118 return (-1); 1119 mib[3] = indx; 1120 *typep = lp->list[indx].ctl_type; 1121 return (4); 1122 } 1123 1124 struct ctlname irixnames[] = EMUL_IRIX_NAMES; 1125 struct list irixvars = { irixnames, EMUL_IRIX_MAXID }; 1126 struct ctlname irixkernnames[] = EMUL_IRIX_KERN_NAMES; 1127 struct list irixkernvars = { irixkernnames, EMUL_IRIX_KERN_MAXID }; 1128 1129 static int 1130 sysctl_irix(char *string, char **bufpp, int mib[], int flags, int *typep) 1131 { 1132 struct list *lp = &irixvars; 1133 int indx; 1134 char name[BUFSIZ], *cp; 1135 1136 if (*bufpp == NULL) { 1137 (void)strcpy(name, string); 1138 cp = &name[strlen(name)]; 1139 *cp++ = '.'; 1140 (void)strcpy(cp, "kern"); 1141 listall(name, &irixkernvars); 1142 return (-1); 1143 } 1144 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1145 return (-1); 1146 mib[2] = indx; 1147 lp = &irixkernvars; 1148 *typep = lp->list[indx].ctl_type; 1149 if ((indx = findname(string, "fourth", bufpp, lp)) == -1) 1150 return (-1); 1151 mib[3] = indx; 1152 *typep = lp->list[indx].ctl_type; 1153 return (4); 1154 } 1155 1156 struct ctlname darwinnames[] = EMUL_DARWIN_NAMES; 1157 struct list darwinvars = { darwinnames, EMUL_DARWIN_MAXID }; 1158 1159 static int 1160 sysctl_darwin(char *string, char **bufpp, int mib[], int flags, int *typep) 1161 { 1162 struct list *lp = &darwinvars; 1163 int indx; 1164 1165 if (*bufpp == NULL) { 1166 listall(string, &darwinvars); 1167 return (-1); 1168 } 1169 if ((indx = findname(string, "third", bufpp, lp)) == -1) 1170 return (-1); 1171 mib[2] = indx; 1172 lp = &darwinvars; 1173 *typep = lp->list[indx].ctl_type; 1174 return (3); 1175 } 1176 1177 /* 1178 * Scan a list of names searching for a particular name. 1179 */ 1180 static int 1181 findname(char *string, char *level, char **bufp, struct list *namelist) 1182 { 1183 char *name; 1184 int i; 1185 1186 if (namelist->list == 0 || (name = strsep(bufp, ".")) == NULL) { 1187 warnx("%s: incomplete specification", string); 1188 return (-1); 1189 } 1190 for (i = 0; i < namelist->size; i++) 1191 if (namelist->list[i].ctl_name != NULL && 1192 strcmp(name, namelist->list[i].ctl_name) == 0) 1193 break; 1194 if (i == namelist->size) { 1195 warnx("%s level name %s in %s is invalid", 1196 level, name, string); 1197 return (-1); 1198 } 1199 return (i); 1200 } 1201 1202 static void 1203 usage(void) 1204 { 1205 const char *progname = getprogname(); 1206 1207 (void)fprintf(stderr, 1208 "Usage:\t%s %s\n\t%s %s\n\t%s %s\n\t%s %s\n\t%s %s\n", 1209 progname, "[-n] variable ...", 1210 progname, "[-n] [-q] -w variable=value ...", 1211 progname, "[-n] -a", 1212 progname, "[-n] -A", 1213 progname, "[-n] [-q] -f file"); 1214 exit(1); 1215 } 1216
Indexes created Tue Sep 23 02:09:52 GMT 2025