1 /* $NetBSD: sysctl.c,v 1.128 2009/03/20 13:18:50 lukem Exp $ */ 2 3 /*- 4 * Copyright (c) 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Brown. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 */ 60 61 #include <sys/cdefs.h> 62 #ifndef lint 63 __COPYRIGHT("@(#) Copyright (c) 1993\ 64 The Regents of the University of California. All rights reserved."); 65 #endif /* not lint */ 66 67 #ifndef lint 68 #if 0 69 static char sccsid[] = "@(#)sysctl.c 8.1 (Berkeley) 6/6/93"; 70 #else 71 __RCSID("$NetBSD: sysctl.c,v 1.128 2009/03/20 13:18:50 lukem Exp $"); 72 #endif 73 #endif /* not lint */ 74 75 #include <sys/types.h> 76 #include <sys/param.h> 77 #include <sys/sysctl.h> 78 #include <sys/mount.h> 79 #include <sys/resource.h> 80 #include <sys/stat.h> 81 #include <sys/sched.h> 82 #include <sys/socket.h> 83 #include <netinet/in.h> 84 #include <netinet/ip_var.h> 85 #include <netinet/tcp.h> 86 #include <netinet/tcp_timer.h> 87 #include <netinet/tcp_var.h> 88 #include <netinet/icmp6.h> 89 #include <nfs/rpcv2.h> 90 #include <nfs/nfsproto.h> 91 #include <nfs/nfs.h> 92 #include <machine/cpu.h> 93 #include <netkey/key_var.h> 94 95 #include <assert.h> 96 #include <ctype.h> 97 #include <err.h> 98 #include <errno.h> 99 #include <inttypes.h> 100 #include <regex.h> 101 #include <stdarg.h> 102 #include <stdio.h> 103 #include <stdlib.h> 104 #include <string.h> 105 #include <time.h> 106 #include <unistd.h> 107 108 /* 109 * this needs to be able to do the printing and the setting 110 */ 111 #define HANDLER_PROTO const char *, const char *, char *, \ 112 int *, u_int, const struct sysctlnode *, \ 113 u_int, void * 114 #define HANDLER_ARGS const char *sname, const char *dname, char *value, \ 115 int *name, u_int namelen, const struct sysctlnode *pnode, \ 116 u_int type, void *v 117 #define DISPLAY_VALUE 0 118 #define DISPLAY_OLD 1 119 #define DISPLAY_NEW 2 120 121 /* 122 * generic routines 123 */ 124 static const struct handlespec *findhandler(const char *, int); 125 static void canonicalize(const char *, char *); 126 static void purge_tree(struct sysctlnode *); 127 static void print_tree(int *, u_int, struct sysctlnode *, u_int, int); 128 static void write_number(int *, u_int, struct sysctlnode *, char *); 129 static void write_string(int *, u_int, struct sysctlnode *, char *); 130 static void display_number(const struct sysctlnode *, const char *, 131 const void *, size_t, int); 132 static void display_string(const struct sysctlnode *, const char *, 133 const void *, size_t, int); 134 static void display_struct(const struct sysctlnode *, const char *, 135 const void *, size_t, int); 136 static void hex_dump(const unsigned char *, size_t); 137 static void usage(void); 138 static void parse(char *); 139 static void parse_create(char *); 140 static void parse_destroy(char *); 141 static void parse_describe(char *); 142 static void getdesc1(int *, u_int, struct sysctlnode *); 143 static void getdesc(int *, u_int, struct sysctlnode *); 144 static void trim_whitespace(char *, int); 145 static void sysctlerror(int); 146 static void sysctlparseerror(u_int, const char *); 147 static void sysctlperror(const char *, ...); 148 #define EXIT(n) do { \ 149 if (fn == NULL) exit(n); else return; } while (/*CONSTCOND*/0) 150 151 /* 152 * "borrowed" from libc:sysctlgetmibinfo.c 153 */ 154 int __learn_tree(int *, u_int, struct sysctlnode *); 155 156 /* 157 * "handlers" 158 */ 159 static void printother(HANDLER_PROTO); 160 static void kern_clockrate(HANDLER_PROTO); 161 static void kern_boottime(HANDLER_PROTO); 162 static void kern_consdev(HANDLER_PROTO); 163 static void kern_cp_time(HANDLER_PROTO); 164 static void kern_cp_id(HANDLER_PROTO); 165 static void kern_drivers(HANDLER_PROTO); 166 static void vm_loadavg(HANDLER_PROTO); 167 static void proc_limit(HANDLER_PROTO); 168 #ifdef CPU_DISKINFO 169 static void machdep_diskinfo(HANDLER_PROTO); 170 #endif /* CPU_DISKINFO */ 171 static void mode_bits(HANDLER_PROTO); 172 173 static const struct handlespec { 174 const char *ps_re; 175 void (*ps_p)(HANDLER_PROTO); 176 void (*ps_w)(HANDLER_PROTO); 177 const void *ps_d; 178 } handlers[] = { 179 { "/kern/clockrate", kern_clockrate, NULL, NULL }, 180 { "/kern/vnode", printother, NULL, "pstat" }, 181 { "/kern/proc(2|_args)?", printother, NULL, "ps" }, 182 { "/kern/file2?", printother, NULL, "pstat" }, 183 { "/kern/ntptime", printother, NULL, 184 "ntpdc -c kerninfo" }, 185 { "/kern/msgbuf", printother, NULL, "dmesg" }, 186 { "/kern/boottime", kern_boottime, NULL, NULL }, 187 { "/kern/consdev", kern_consdev, NULL, NULL }, 188 { "/kern/cp_time(/[0-9]+)?", kern_cp_time, NULL, NULL }, 189 { "/kern/sysvipc_info", printother, NULL, "ipcs" }, 190 { "/kern/cp_id(/[0-9]+)?", kern_cp_id, NULL, NULL }, 191 192 { "/kern/coredump/setid/mode", mode_bits, mode_bits, NULL }, 193 { "/kern/drivers", kern_drivers, NULL, NULL }, 194 195 { "/vm/vmmeter", printother, NULL, 196 "vmstat' or 'systat" }, 197 { "/vm/loadavg", vm_loadavg, NULL, NULL }, 198 { "/vm/uvmexp2?", printother, NULL, 199 "vmstat' or 'systat" }, 200 201 { "/vfs/nfs/nfsstats", printother, NULL, "nfsstat" }, 202 203 { "/net/inet6?/tcp6?/ident", printother, NULL, "identd" }, 204 { "/net/inet6/icmp6/nd6_[dp]rlist", printother, NULL, "ndp" }, 205 { "/net/key/dumps[ap]", printother, NULL, "setkey" }, 206 { "/net/[^/]+/[^/]+/pcblist", printother, NULL, 207 "netstat' or 'sockstat" }, 208 { "/net/(inet|inet6)/[^/]+/stats", printother, NULL, "netstat"}, 209 { "/net/bpf/(stats|peers)", printother, NULL, "netstat"}, 210 211 { "/net/inet.*/tcp.*/deb.*", printother, NULL, "trpt" }, 212 213 { "/net/ns/spp/deb.*", printother, NULL, "trsp" }, 214 215 { "/hw/diskstats", printother, NULL, "iostat" }, 216 217 #ifdef CPU_CONSDEV 218 { "/machdep/consdev", kern_consdev, NULL, NULL }, 219 #endif /* CPU_CONSDEV */ 220 #ifdef CPU_DISKINFO 221 { "/machdep/diskinfo", machdep_diskinfo, NULL, NULL }, 222 #endif /* CPU_CONSDEV */ 223 224 { "/proc/[^/]+/rlimit/[^/]+/[^/]+", proc_limit, proc_limit, NULL }, 225 226 /* 227 * these will only be called when the given node has no children 228 */ 229 { "/net/[^/]+", printother, NULL, NULL }, 230 { "/debug", printother, NULL, NULL }, 231 { "/ddb", printother, NULL, NULL }, 232 { "/vendor", printother, NULL, NULL }, 233 234 { NULL, NULL, NULL, NULL }, 235 }; 236 237 struct sysctlnode my_root = { 238 .sysctl_flags = SYSCTL_VERSION|CTLFLAG_ROOT|CTLTYPE_NODE, 239 sysc_init_field(_sysctl_size, sizeof(struct sysctlnode)), 240 .sysctl_num = 0, 241 .sysctl_name = "(prog_root)", 242 }; 243 244 int Aflag, aflag, dflag, Mflag, nflag, qflag, rflag, wflag, xflag; 245 size_t nr; 246 char *fn; 247 int req, stale, errs; 248 FILE *warnfp = stderr; 249 250 /* 251 * vah-riables n stuff 252 */ 253 char gsname[SYSCTL_NAMELEN * CTL_MAXNAME + CTL_MAXNAME], 254 canonname[SYSCTL_NAMELEN * CTL_MAXNAME + CTL_MAXNAME], 255 gdname[10 * CTL_MAXNAME + CTL_MAXNAME]; 256 char sep[] = "."; 257 const char *eq = " = "; 258 const char *lname[] = { 259 "top", "second", "third", "fourth", "fifth", "sixth", 260 "seventh", "eighth", "ninth", "tenth", "eleventh", "twelfth" 261 }; 262 263 /* 264 * you've heard of main, haven't you? 265 */ 266 int 267 main(int argc, char *argv[]) 268 { 269 int name[CTL_MAXNAME]; 270 int ch; 271 272 while ((ch = getopt(argc, argv, "Aabdef:Mnqrwx")) != -1) { 273 switch (ch) { 274 case 'A': 275 Aflag++; 276 break; 277 case 'a': 278 aflag++; 279 break; 280 case 'd': 281 dflag++; 282 break; 283 case 'e': 284 eq = "="; 285 break; 286 case 'f': 287 fn = optarg; 288 wflag++; 289 break; 290 case 'M': 291 Mflag++; 292 break; 293 case 'n': 294 nflag++; 295 break; 296 case 'q': 297 qflag++; 298 break; 299 case 'b': /* FreeBSD compat */ 300 case 'r': 301 rflag++; 302 break; 303 case 'w': 304 wflag++; 305 break; 306 case 'x': 307 xflag++; 308 break; 309 default: 310 usage(); 311 } 312 } 313 314 argc -= optind; 315 argv += optind; 316 317 if (qflag && !wflag) 318 usage(); 319 if (xflag && rflag) 320 usage(); 321 /* if ((xflag || rflag) && wflag) 322 usage(); */ 323 /* if (aflag && Mflag) 324 usage(); */ 325 if ((Aflag || Mflag || dflag) && argc == 0 && fn == NULL) 326 aflag = 1; 327 328 if (Aflag) 329 warnfp = stdout; 330 stale = req = 0; 331 332 if (aflag) { 333 print_tree(&name[0], 0, NULL, CTLTYPE_NODE, 1); 334 /* if (argc == 0) */ 335 return (0); 336 } 337 338 if (fn) { 339 FILE *fp; 340 char *l; 341 342 fp = fopen(fn, "r"); 343 if (fp == NULL) { 344 err(1, "%s", fn); 345 } else { 346 nr = 0; 347 while ((l = fparseln(fp, NULL, &nr, NULL, 0)) != NULL) 348 { 349 if (*l) { 350 parse(l); 351 free(l); 352 } 353 } 354 fclose(fp); 355 } 356 return errs ? 1 : 0; 357 } 358 359 if (argc == 0) 360 usage(); 361 362 while (argc-- > 0) 363 parse(*argv++); 364 365 return errs ? 1 : 0; 366 } 367 368 /* 369 * ******************************************************************** 370 * how to find someone special to handle the reading (or maybe even 371 * writing) of a particular node 372 * ******************************************************************** 373 */ 374 static const struct handlespec * 375 findhandler(const char *s, int w) 376 { 377 const struct handlespec *p; 378 regex_t re; 379 int i, j, l; 380 char eb[64]; 381 regmatch_t match[1]; 382 383 p = &handlers[0]; 384 l = strlen(s); 385 for (i = 0; p[i].ps_re != NULL; i++) { 386 j = regcomp(&re, p[i].ps_re, REG_EXTENDED); 387 if (j != 0) { 388 regerror(j, &re, eb, sizeof(eb)); 389 errx(1, "regcomp: %s: %s", p[i].ps_re, eb); 390 } 391 j = regexec(&re, s, 1, match, 0); 392 if (j == 0) { 393 if (match[0].rm_so == 0 && match[0].rm_eo == l && 394 (w ? p[i].ps_w : p[i].ps_p) != NULL) { 395 regfree(&re); 396 return (&p[i]); 397 } 398 } 399 else if (j != REG_NOMATCH) { 400 regerror(j, &re, eb, sizeof(eb)); 401 errx(1, "regexec: %s: %s", p[i].ps_re, eb); 402 } 403 regfree(&re); 404 } 405 406 return (NULL); 407 } 408 409 /* 410 * after sysctlgetmibinfo is done with the name, we convert all 411 * separators to / and stuff one at the front if it was missing 412 */ 413 static void 414 canonicalize(const char *i, char *o) 415 { 416 const char *t; 417 char p[SYSCTL_NAMELEN + 1]; 418 int l; 419 420 if (i[0] != *sep) { 421 o[0] = '/'; 422 o[1] = '\0'; 423 } 424 else 425 o[0] = '\0'; 426 427 t = i; 428 do { 429 i = t; 430 t = strchr(i, sep[0]); 431 if (t == NULL) 432 strcat(o, i); 433 else { 434 l = t - i; 435 t++; 436 memcpy(p, i, l); 437 p[l] = '\0'; 438 strcat(o, p); 439 strcat(o, "/"); 440 } 441 } while (t != NULL); 442 } 443 444 /* 445 * ******************************************************************** 446 * convert this special number to a special string so we can print the 447 * mib 448 * ******************************************************************** 449 */ 450 static const char * 451 sf(u_int f) 452 { 453 static char s[256]; 454 const char *c; 455 456 s[0] = '\0'; 457 c = ""; 458 459 #define print_flag(_f, _s, _c, _q, _x) \ 460 if (((_f) & (__CONCAT(CTLFLAG_,_x))) == (__CONCAT(CTLFLAG_,_q))) { \ 461 strlcat((_s), (_c), sizeof(_s)); \ 462 strlcat((_s), __STRING(_q), sizeof(_s)); \ 463 (_c) = ","; \ 464 (_f) &= ~(__CONCAT(CTLFLAG_,_x)); \ 465 } 466 print_flag(f, s, c, READONLY, READWRITE); 467 print_flag(f, s, c, READWRITE, READWRITE); 468 print_flag(f, s, c, ANYWRITE, ANYWRITE); 469 print_flag(f, s, c, PRIVATE, PRIVATE); 470 print_flag(f, s, c, PERMANENT, PERMANENT); 471 print_flag(f, s, c, OWNDATA, OWNDATA); 472 print_flag(f, s, c, IMMEDIATE, IMMEDIATE); 473 print_flag(f, s, c, HEX, HEX); 474 print_flag(f, s, c, ROOT, ROOT); 475 print_flag(f, s, c, ANYNUMBER, ANYNUMBER); 476 print_flag(f, s, c, HIDDEN, HIDDEN); 477 print_flag(f, s, c, ALIAS, ALIAS); 478 #undef print_flag 479 480 if (f) { 481 char foo[9]; 482 snprintf(foo, sizeof(foo), "%x", f); 483 strlcat(s, c, sizeof(s)); 484 strlcat(s, foo, sizeof(s)); 485 } 486 487 return (s); 488 } 489 490 static const char * 491 st(u_int t) 492 { 493 494 switch (t) { 495 case CTLTYPE_NODE: 496 return "NODE"; 497 case CTLTYPE_INT: 498 return "INT"; 499 case CTLTYPE_STRING: 500 return "STRING"; 501 case CTLTYPE_QUAD: 502 return "QUAD"; 503 case CTLTYPE_STRUCT: 504 return "STRUCT"; 505 } 506 507 return "???"; 508 } 509 510 /* 511 * ******************************************************************** 512 * recursively eliminate all data belonging to the given node 513 * ******************************************************************** 514 */ 515 static void 516 purge_tree(struct sysctlnode *rnode) 517 { 518 struct sysctlnode *node; 519 520 if (rnode == NULL || 521 SYSCTL_TYPE(rnode->sysctl_flags) != CTLTYPE_NODE || 522 rnode->sysctl_child == NULL) 523 return; 524 525 for (node = rnode->sysctl_child; 526 node < &rnode->sysctl_child[rnode->sysctl_clen]; 527 node++) 528 purge_tree(node); 529 free(rnode->sysctl_child); 530 rnode->sysctl_csize = 0; 531 rnode->sysctl_clen = 0; 532 rnode->sysctl_child = NULL; 533 534 if (rnode->sysctl_desc == (const char*)-1) 535 rnode->sysctl_desc = NULL; 536 if (rnode->sysctl_desc != NULL) 537 free(__UNCONST(rnode->sysctl_desc)); 538 rnode->sysctl_desc = NULL; 539 } 540 541 /* 542 * ******************************************************************** 543 * print this node and any others underneath it 544 * ******************************************************************** 545 */ 546 static void 547 print_tree(int *name, u_int namelen, struct sysctlnode *pnode, u_int type, 548 int add) 549 { 550 struct sysctlnode *node; 551 int rc; 552 size_t ni, sz; 553 char *sp, *dp, n[20]; 554 const struct handlespec *p; 555 556 sp = &gsname[strlen(gsname)]; 557 dp = &gdname[strlen(gdname)]; 558 559 if (sp != &gsname[0] && dp == &gdname[0]) { 560 /* 561 * aw...shucks. now we must play catch up 562 */ 563 for (ni = 0; ni < namelen; ni++) { 564 (void)snprintf(n, sizeof(n), "%d", name[ni]); 565 if (ni > 0) 566 strncat(gdname, ".", sizeof(gdname)); 567 strncat(gdname, n, sizeof(gdname)); 568 } 569 } 570 571 if (pnode == NULL) 572 pnode = &my_root; 573 else if (add) { 574 snprintf(n, sizeof(n), "%d", pnode->sysctl_num); 575 if (namelen > 1) { 576 strncat(gsname, sep, sizeof(gsname)); 577 strncat(gdname, ".", sizeof(gdname)); 578 } 579 strncat(gsname, pnode->sysctl_name, sizeof(gsname)); 580 strncat(gdname, n, sizeof(gdname)); 581 } 582 583 if (Mflag && pnode != &my_root) { 584 if (nflag) 585 printf("%s: ", gdname); 586 else 587 printf("%s (%s): ", gsname, gdname); 588 printf("CTLTYPE_%s", st(type)); 589 if (type == CTLTYPE_NODE) { 590 if (SYSCTL_FLAGS(pnode->sysctl_flags) & CTLFLAG_ALIAS) 591 printf(", alias %d", 592 pnode->sysctl_alias); 593 else 594 printf(", children %d/%d", 595 pnode->sysctl_clen, 596 pnode->sysctl_csize); 597 } 598 printf(", size %zu", pnode->sysctl_size); 599 printf(", flags 0x%x<%s>", 600 SYSCTL_FLAGS(pnode->sysctl_flags), 601 sf(SYSCTL_FLAGS(pnode->sysctl_flags))); 602 if (pnode->sysctl_func) 603 printf(", func=%p", pnode->sysctl_func); 604 printf(", ver=%d", pnode->sysctl_ver); 605 printf("\n"); 606 if (type != CTLTYPE_NODE) { 607 *sp = *dp = '\0'; 608 return; 609 } 610 } 611 612 if (dflag && pnode != &my_root) { 613 if (Aflag || type != CTLTYPE_NODE) { 614 if (pnode->sysctl_desc == NULL) 615 getdesc1(name, namelen, pnode); 616 if (Aflag || !add || 617 (pnode->sysctl_desc != NULL && 618 pnode->sysctl_desc != (const char*)-1)) { 619 if (!nflag) 620 printf("%s: ", gsname); 621 if (pnode->sysctl_desc == NULL || 622 pnode->sysctl_desc == (const char*)-1) 623 printf("(no description)\n"); 624 else 625 printf("%s\n", pnode->sysctl_desc); 626 } 627 } 628 629 if (type != CTLTYPE_NODE) { 630 *sp = *dp = '\0'; 631 return; 632 } 633 } 634 635 /* 636 * if this is an alias and we added our name, that means we 637 * got here by recursing down into the tree, so skip it. The 638 * only way to print an aliased node is with either -M or by 639 * name specifically. 640 */ 641 if (SYSCTL_FLAGS(pnode->sysctl_flags) & CTLFLAG_ALIAS && add) { 642 *sp = *dp = '\0'; 643 return; 644 } 645 646 canonicalize(gsname, canonname); 647 p = findhandler(canonname, 0); 648 if (type != CTLTYPE_NODE && p != NULL) { 649 (*p->ps_p)(gsname, gdname, NULL, name, namelen, pnode, type, 650 __UNCONST(p->ps_d)); 651 *sp = *dp = '\0'; 652 return; 653 } 654 655 if (type != CTLTYPE_NODE && pnode->sysctl_size == 0) { 656 rc = sysctl(&name[0], namelen, NULL, &sz, NULL, 0); 657 if (rc == -1) { 658 sysctlerror(1); 659 *sp = *dp = '\0'; 660 return; 661 } 662 if (sz == 0) { 663 if ((Aflag || req) && !Mflag) 664 printf("%s: node contains no data\n", gsname); 665 *sp = *dp = '\0'; 666 return; 667 } 668 } 669 else 670 sz = pnode->sysctl_size; 671 672 switch (type) { 673 case CTLTYPE_NODE: { 674 __learn_tree(name, namelen, pnode); 675 node = pnode->sysctl_child; 676 if (node == NULL) { 677 if (dflag) 678 /* do nothing */; 679 else if (p != NULL) 680 (*p->ps_p)(gsname, gdname, NULL, name, namelen, 681 pnode, type, __UNCONST(p->ps_d)); 682 else if ((Aflag || req) && !Mflag) 683 printf("%s: no children\n", gsname); 684 } 685 else { 686 if (dflag) 687 /* 688 * get all descriptions for next level 689 * in one chunk 690 */ 691 getdesc(name, namelen, pnode); 692 req = 0; 693 for (ni = 0; ni < pnode->sysctl_clen; ni++) { 694 name[namelen] = node[ni].sysctl_num; 695 if ((node[ni].sysctl_flags & CTLFLAG_HIDDEN) && 696 !(Aflag || req)) 697 continue; 698 print_tree(name, namelen + 1, &node[ni], 699 SYSCTL_TYPE(node[ni].sysctl_flags), 700 1); 701 } 702 } 703 break; 704 } 705 case CTLTYPE_INT: { 706 int i; 707 rc = sysctl(name, namelen, &i, &sz, NULL, 0); 708 if (rc == -1) { 709 sysctlerror(1); 710 break; 711 } 712 display_number(pnode, gsname, &i, sizeof(i), DISPLAY_VALUE); 713 break; 714 } 715 case CTLTYPE_STRING: { 716 unsigned char buf[1024], *tbuf; 717 tbuf = buf; 718 sz = sizeof(buf); 719 rc = sysctl(&name[0], namelen, tbuf, &sz, NULL, 0); 720 if (rc == -1 && errno == ENOMEM) { 721 tbuf = malloc(sz); 722 if (tbuf == NULL) { 723 sysctlerror(1); 724 break; 725 } 726 rc = sysctl(&name[0], namelen, tbuf, &sz, NULL, 0); 727 } 728 if (rc == -1) 729 sysctlerror(1); 730 else 731 display_string(pnode, gsname, tbuf, sz, DISPLAY_VALUE); 732 if (tbuf != buf) 733 free(tbuf); 734 break; 735 } 736 case CTLTYPE_QUAD: { 737 u_quad_t q; 738 sz = sizeof(q); 739 rc = sysctl(&name[0], namelen, &q, &sz, NULL, 0); 740 if (rc == -1) { 741 sysctlerror(1); 742 break; 743 } 744 display_number(pnode, gsname, &q, sizeof(q), DISPLAY_VALUE); 745 break; 746 } 747 case CTLTYPE_STRUCT: { 748 /* 749 * we shouldn't actually get here, but if we 750 * do, would it be nice to have *something* to 751 * do other than completely ignore the 752 * request. 753 */ 754 unsigned char *d; 755 if ((d = malloc(sz)) == NULL) { 756 fprintf(warnfp, "%s: !malloc failed!\n", gsname); 757 break; 758 } 759 rc = sysctl(&name[0], namelen, d, &sz, NULL, 0); 760 if (rc == -1) { 761 sysctlerror(1); 762 break; 763 } 764 display_struct(pnode, gsname, d, sz, DISPLAY_VALUE); 765 free(d); 766 break; 767 } 768 default: 769 /* should i print an error here? */ 770 break; 771 } 772 773 *sp = *dp = '\0'; 774 } 775 776 /* 777 * ******************************************************************** 778 * parse a request, possibly determining that it's a create or destroy 779 * request 780 * ******************************************************************** 781 */ 782 static void 783 parse(char *l) 784 { 785 struct sysctlnode *node; 786 const struct handlespec *w; 787 int name[CTL_MAXNAME], dodesc = 0; 788 u_int namelen, type; 789 char *key, *value, *dot; 790 size_t sz; 791 792 req = 1; 793 key = l; 794 value = strchr(l, '='); 795 if (value != NULL) 796 *value++ = '\0'; 797 798 if ((dot = strpbrk(key, "./")) == NULL) 799 sep[0] = '.'; 800 else 801 sep[0] = dot[0]; 802 sep[1] = '\0'; 803 804 while (key[0] == sep[0] && key[1] == sep[0]) { 805 if (value != NULL) 806 value[-1] = '='; 807 if (strncmp(key + 2, "create", 6) == 0 && 808 (key[8] == '=' || key[8] == sep[0])) 809 parse_create(key + 8 + (key[8] == '=' ? 1 : 0)); 810 else if (strncmp(key + 2, "destroy", 7) == 0 && 811 (key[9] == '=' || key[9] == sep[0])) 812 parse_destroy(key + 9 + (key[9] == '=' ? 1 : 0)); 813 else if (strncmp(key + 2, "describe", 8) == 0 && 814 (key[10] == '=' || key[10] == sep[0])) { 815 key += 10 + (key[10] == '='); 816 if ((value = strchr(key, '=')) != NULL) 817 parse_describe(key); 818 else { 819 if (!dflag) 820 dodesc = 1; 821 break; 822 } 823 } 824 else 825 sysctlperror("unable to parse '%s'\n", key); 826 return; 827 } 828 829 if (stale) { 830 purge_tree(&my_root); 831 stale = 0; 832 } 833 node = &my_root; 834 namelen = CTL_MAXNAME; 835 sz = sizeof(gsname); 836 837 if (sysctlgetmibinfo(key, &name[0], &namelen, gsname, &sz, &node, 838 SYSCTL_VERSION) == -1) { 839 sysctlparseerror(namelen, l); 840 EXIT(1); 841 } 842 843 type = SYSCTL_TYPE(node->sysctl_flags); 844 845 if (value == NULL) { 846 if (dodesc) 847 dflag = 1; 848 print_tree(&name[0], namelen, node, type, 0); 849 if (dodesc) 850 dflag = 0; 851 gsname[0] = '\0'; 852 return; 853 } 854 855 if (fn) 856 trim_whitespace(value, 1); 857 858 if (!wflag) { 859 sysctlperror("Must specify -w to set variables\n"); 860 exit(1); 861 } 862 863 canonicalize(gsname, canonname); 864 if (type != CTLTYPE_NODE && (w = findhandler(canonname, 1)) != NULL) { 865 (*w->ps_w)(gsname, gdname, value, name, namelen, node, type, 866 __UNCONST(w->ps_d)); 867 gsname[0] = '\0'; 868 return; 869 } 870 871 switch (type) { 872 case CTLTYPE_NODE: 873 /* 874 * XXX old behavior is to print. should we error instead? 875 */ 876 print_tree(&name[0], namelen, node, CTLTYPE_NODE, 1); 877 break; 878 case CTLTYPE_INT: 879 write_number(&name[0], namelen, node, value); 880 break; 881 case CTLTYPE_STRING: 882 write_string(&name[0], namelen, node, value); 883 break; 884 case CTLTYPE_QUAD: 885 write_number(&name[0], namelen, node, value); 886 break; 887 case CTLTYPE_STRUCT: 888 /* 889 * XXX old behavior is to print. should we error instead? 890 */ 891 /* fprintf(warnfp, "you can't write to %s\n", gsname); */ 892 print_tree(&name[0], namelen, node, type, 0); 893 break; 894 } 895 } 896 897 /* 898 899 //create=foo.bar.whatever..., 900 [type=(int|quad|string|struct|node),] 901 [size=###,] 902 [n=###,] 903 [flags=(iohxparw12),] 904 [addr=0x####,|symbol=...|value=...] 905 906 size is optional for some types. type must be set before anything 907 else. nodes can have [r12whp], but nothing else applies. if no 908 size or type is given, node is asserted. writeable is the default, 909 with [r12w] being read-only, writeable below securelevel 1, 910 writeable below securelevel 2, and unconditionally writeable 911 respectively. if you specify addr, it is assumed to be the name of 912 a kernel symbol, if value, CTLFLAG_OWNDATA will be asserted for 913 strings, CTLFLAG_IMMEDIATE for ints and u_quad_ts. you cannot 914 specify both value and addr. 915 916 */ 917 918 static void 919 parse_create(char *l) 920 { 921 struct sysctlnode node; 922 size_t sz; 923 char *nname, *key, *value, *data, *addr, *c, *t; 924 int name[CTL_MAXNAME], i, rc, method, flags, rw; 925 u_int namelen, type; 926 u_quad_t uq; 927 quad_t q; 928 929 if (!wflag) { 930 sysctlperror("Must specify -w to create nodes\n"); 931 exit(1); 932 } 933 934 /* 935 * these are the pieces that make up the description of a new 936 * node 937 */ 938 memset(&node, 0, sizeof(node)); 939 node.sysctl_num = CTL_CREATE; /* any number is fine */ 940 flags = 0; 941 rw = -1; 942 type = 0; 943 sz = 0; 944 data = addr = NULL; 945 memset(name, 0, sizeof(name)); 946 namelen = 0; 947 method = 0; 948 949 /* 950 * misc stuff used when constructing 951 */ 952 i = 0; 953 uq = 0; 954 key = NULL; 955 value = NULL; 956 957 /* 958 * the name of the thing we're trying to create is first, so 959 * pick it off. 960 */ 961 nname = l; 962 if ((c = strchr(nname, ',')) != NULL) 963 *c++ = '\0'; 964 965 while (c != NULL) { 966 967 /* 968 * pull off the next "key=value" pair 969 */ 970 key = c; 971 if ((t = strchr(key, '=')) != NULL) { 972 *t++ = '\0'; 973 value = t; 974 } 975 else 976 value = NULL; 977 978 /* 979 * if the "key" is "value", then that eats the rest of 980 * the string, so we're done, otherwise bite it off at 981 * the next comma. 982 */ 983 if (strcmp(key, "value") == 0) { 984 c = NULL; 985 data = value; 986 break; 987 } 988 else if (value) { 989 if ((c = strchr(value, ',')) != NULL) 990 *c++ = '\0'; 991 } 992 993 /* 994 * note that we (mostly) let the invoker of sysctl(8) 995 * play rampant here and depend on the kernel to tell 996 * them that they were wrong. well...within reason. 997 * we later check the various parameters against each 998 * other to make sure it makes some sort of sense. 999 */ 1000 if (strcmp(key, "addr") == 0) { 1001 /* 1002 * we can't check these two. only the kernel 1003 * can tell us when it fails to find the name 1004 * (or if the address is invalid). 1005 */ 1006 if (method != 0) { 1007 sysctlperror( 1008 "%s: already have %s for new node\n", 1009 nname, 1010 method == CTL_CREATE ? "addr" : "symbol"); 1011 EXIT(1); 1012 } 1013 if (value == NULL) { 1014 sysctlperror("%s: missing value\n", nname); 1015 EXIT(1); 1016 } 1017 errno = 0; 1018 addr = (void*)strtoul(value, &t, 0); 1019 if (t == value || *t != '\0' || errno != 0) { 1020 sysctlperror( 1021 "%s: '%s' is not a valid address\n", 1022 nname, value); 1023 EXIT(1); 1024 } 1025 method = CTL_CREATE; 1026 } 1027 else if (strcmp(key, "symbol") == 0) { 1028 if (method != 0) { 1029 sysctlperror( 1030 "%s: already have %s for new node\n", 1031 nname, 1032 method == CTL_CREATE ? "addr" : "symbol"); 1033 EXIT(1); 1034 } 1035 addr = value; 1036 method = CTL_CREATESYM; 1037 } 1038 else if (strcmp(key, "type") == 0) { 1039 if (value == NULL) { 1040 sysctlperror("%s: missing value\n", nname); 1041 EXIT(1); 1042 } 1043 if (strcmp(value, "node") == 0) 1044 type = CTLTYPE_NODE; 1045 else if (strcmp(value, "int") == 0) { 1046 sz = sizeof(int); 1047 type = CTLTYPE_INT; 1048 } 1049 else if (strcmp(value, "string") == 0) 1050 type = CTLTYPE_STRING; 1051 else if (strcmp(value, "quad") == 0) { 1052 sz = sizeof(u_quad_t); 1053 type = CTLTYPE_QUAD; 1054 } 1055 else if (strcmp(value, "struct") == 0) 1056 type = CTLTYPE_STRUCT; 1057 else { 1058 sysctlperror( 1059 "%s: '%s' is not a valid type\n", 1060 nname, value); 1061 EXIT(1); 1062 } 1063 } 1064 else if (strcmp(key, "size") == 0) { 1065 if (value == NULL) { 1066 sysctlperror("%s: missing value\n", nname); 1067 EXIT(1); 1068 } 1069 errno = 0; 1070 /* 1071 * yes, i know size_t is not an unsigned long, 1072 * but we can all agree that it ought to be, 1073 * right? 1074 */ 1075 sz = strtoul(value, &t, 0); 1076 if (t == value || *t != '\0' || errno != 0) { 1077 sysctlperror( 1078 "%s: '%s' is not a valid size\n", 1079 nname, value); 1080 EXIT(1); 1081 } 1082 } 1083 else if (strcmp(key, "n") == 0) { 1084 if (value == NULL) { 1085 sysctlperror("%s: missing value\n", nname); 1086 EXIT(1); 1087 } 1088 errno = 0; 1089 q = strtoll(value, &t, 0); 1090 if (t == value || *t != '\0' || errno != 0 || 1091 q < INT_MIN || q > UINT_MAX) { 1092 sysctlperror( 1093 "%s: '%s' is not a valid mib number\n", 1094 nname, value); 1095 EXIT(1); 1096 } 1097 node.sysctl_num = (int)q; 1098 } 1099 else if (strcmp(key, "flags") == 0) { 1100 if (value == NULL) { 1101 sysctlperror("%s: missing value\n", nname); 1102 EXIT(1); 1103 } 1104 t = value; 1105 while (*t != '\0') { 1106 switch (*t) { 1107 case 'a': 1108 flags |= CTLFLAG_ANYWRITE; 1109 break; 1110 case 'h': 1111 flags |= CTLFLAG_HIDDEN; 1112 break; 1113 case 'i': 1114 flags |= CTLFLAG_IMMEDIATE; 1115 break; 1116 case 'o': 1117 flags |= CTLFLAG_OWNDATA; 1118 break; 1119 case 'p': 1120 flags |= CTLFLAG_PRIVATE; 1121 break; 1122 case 'x': 1123 flags |= CTLFLAG_HEX; 1124 break; 1125 1126 case 'r': 1127 rw = CTLFLAG_READONLY; 1128 break; 1129 case 'w': 1130 rw = CTLFLAG_READWRITE; 1131 break; 1132 default: 1133 sysctlperror( 1134 "%s: '%c' is not a valid flag\n", 1135 nname, *t); 1136 EXIT(1); 1137 } 1138 t++; 1139 } 1140 } 1141 else { 1142 sysctlperror("%s: unrecognized keyword '%s'\n", 1143 nname, key); 1144 EXIT(1); 1145 } 1146 } 1147 1148 /* 1149 * now that we've finished parsing the given string, fill in 1150 * anything they didn't specify 1151 */ 1152 if (type == 0) 1153 type = CTLTYPE_NODE; 1154 1155 /* 1156 * the "data" can be interpreted various ways depending on the 1157 * type of node we're creating, as can the size 1158 */ 1159 if (data != NULL) { 1160 if (addr != NULL) { 1161 sysctlperror( 1162 "%s: cannot specify both value and " 1163 "address\n", nname); 1164 EXIT(1); 1165 } 1166 1167 switch (type) { 1168 case CTLTYPE_INT: 1169 errno = 0; 1170 q = strtoll(data, &t, 0); 1171 if (t == data || *t != '\0' || errno != 0 || 1172 q < INT_MIN || q > UINT_MAX) { 1173 sysctlperror( 1174 "%s: '%s' is not a valid integer\n", 1175 nname, value); 1176 EXIT(1); 1177 } 1178 i = (int)q; 1179 if (!(flags & CTLFLAG_OWNDATA)) { 1180 flags |= CTLFLAG_IMMEDIATE; 1181 node.sysctl_idata = i; 1182 } 1183 else 1184 node.sysctl_data = &i; 1185 if (sz == 0) 1186 sz = sizeof(int); 1187 break; 1188 case CTLTYPE_STRING: 1189 flags |= CTLFLAG_OWNDATA; 1190 node.sysctl_data = data; 1191 if (sz == 0) 1192 sz = strlen(data) + 1; 1193 else if (sz < strlen(data) + 1) { 1194 sysctlperror("%s: ignoring size=%zu for " 1195 "string node, too small for given " 1196 "value\n", nname, sz); 1197 sz = strlen(data) + 1; 1198 } 1199 break; 1200 case CTLTYPE_QUAD: 1201 errno = 0; 1202 uq = strtouq(data, &t, 0); 1203 if (t == data || *t != '\0' || errno != 0) { 1204 sysctlperror( 1205 "%s: '%s' is not a valid quad\n", 1206 nname, value); 1207 EXIT(1); 1208 } 1209 if (!(flags & CTLFLAG_OWNDATA)) { 1210 flags |= CTLFLAG_IMMEDIATE; 1211 node.sysctl_qdata = uq; 1212 } 1213 else 1214 node.sysctl_data = &uq; 1215 if (sz == 0) 1216 sz = sizeof(u_quad_t); 1217 break; 1218 case CTLTYPE_STRUCT: 1219 sysctlperror("%s: struct not initializable\n", 1220 nname); 1221 EXIT(1); 1222 } 1223 1224 /* 1225 * these methods have all provided local starting 1226 * values that the kernel must copy in 1227 */ 1228 } 1229 1230 /* 1231 * hmm...no data, but we have an address of data. that's 1232 * fine. 1233 */ 1234 else if (addr != 0) 1235 node.sysctl_data = (void*)addr; 1236 1237 /* 1238 * no data and no address? well...okay. we might be able to 1239 * manage that. 1240 */ 1241 else if (type != CTLTYPE_NODE) { 1242 if (sz == 0) { 1243 sysctlperror( 1244 "%s: need a size or a starting value\n", 1245 nname); 1246 EXIT(1); 1247 } 1248 if (!(flags & CTLFLAG_IMMEDIATE)) 1249 flags |= CTLFLAG_OWNDATA; 1250 } 1251 1252 /* 1253 * now we do a few sanity checks on the description we've 1254 * assembled 1255 */ 1256 if ((flags & CTLFLAG_IMMEDIATE) && 1257 (type == CTLTYPE_STRING || type == CTLTYPE_STRUCT)) { 1258 sysctlperror("%s: cannot make an immediate %s\n", 1259 nname, 1260 (type == CTLTYPE_STRING) ? "string" : "struct"); 1261 EXIT(1); 1262 } 1263 if (type == CTLTYPE_NODE && node.sysctl_data != NULL) { 1264 sysctlperror("%s: nodes do not have data\n", nname); 1265 EXIT(1); 1266 } 1267 1268 /* 1269 * some types must have a particular size 1270 */ 1271 if (sz != 0) { 1272 if ((type == CTLTYPE_INT && sz != sizeof(int)) || 1273 (type == CTLTYPE_QUAD && sz != sizeof(u_quad_t)) || 1274 (type == CTLTYPE_NODE && sz != 0)) { 1275 sysctlperror("%s: wrong size for type\n", nname); 1276 EXIT(1); 1277 } 1278 } 1279 else if (type == CTLTYPE_STRUCT) { 1280 sysctlperror("%s: struct must have size\n", nname); 1281 EXIT(1); 1282 } 1283 1284 /* 1285 * now...if no one said anything yet, we default nodes or 1286 * any type that owns data being writeable, and everything 1287 * else being readonly. 1288 */ 1289 if (rw == -1) { 1290 if (type == CTLTYPE_NODE || 1291 (flags & (CTLFLAG_OWNDATA|CTLFLAG_IMMEDIATE))) 1292 rw = CTLFLAG_READWRITE; 1293 else 1294 rw = CTLFLAG_READONLY; 1295 } 1296 1297 /* 1298 * if a kernel address was specified, that can't be made 1299 * writeable by us. 1300 if (rw != CTLFLAG_READONLY && addr) { 1301 sysctlperror("%s: kernel data can only be readable\n", nname); 1302 EXIT(1); 1303 } 1304 */ 1305 1306 /* 1307 * what separator were they using in the full name of the new 1308 * node? 1309 */ 1310 if ((t = strpbrk(nname, "./")) == NULL) 1311 sep[0] = '.'; 1312 else 1313 sep[0] = t[0]; 1314 sep[1] = '\0'; 1315 1316 /* 1317 * put it all together, now. t'ain't much, is it? 1318 */ 1319 node.sysctl_flags = SYSCTL_VERSION|flags|rw|type; 1320 node.sysctl_size = sz; 1321 t = strrchr(nname, sep[0]); 1322 if (t != NULL) 1323 strlcpy(node.sysctl_name, t + 1, sizeof(node.sysctl_name)); 1324 else 1325 strlcpy(node.sysctl_name, nname, sizeof(node.sysctl_name)); 1326 if (t == nname) 1327 t = NULL; 1328 1329 /* 1330 * if this is a new top-level node, then we don't need to find 1331 * the mib for its parent 1332 */ 1333 if (t == NULL) { 1334 namelen = 0; 1335 gsname[0] = '\0'; 1336 } 1337 1338 /* 1339 * on the other hand, if it's not a top-level node... 1340 */ 1341 else { 1342 namelen = sizeof(name) / sizeof(name[0]); 1343 sz = sizeof(gsname); 1344 *t = '\0'; 1345 rc = sysctlgetmibinfo(nname, &name[0], &namelen, 1346 gsname, &sz, NULL, SYSCTL_VERSION); 1347 *t = sep[0]; 1348 if (rc == -1) { 1349 sysctlparseerror(namelen, nname); 1350 EXIT(1); 1351 } 1352 } 1353 1354 /* 1355 * yes, a new node is being created 1356 */ 1357 if (method != 0) 1358 name[namelen++] = method; 1359 else 1360 name[namelen++] = CTL_CREATE; 1361 1362 sz = sizeof(node); 1363 rc = sysctl(&name[0], namelen, &node, &sz, &node, sizeof(node)); 1364 1365 if (rc == -1) { 1366 sysctlperror("%s: CTL_CREATE failed: %s\n", 1367 nname, strerror(errno)); 1368 EXIT(1); 1369 } 1370 else { 1371 if (!qflag && !nflag) 1372 printf("%s(%s): (created)\n", nname, st(type)); 1373 stale = 1; 1374 } 1375 } 1376 1377 static void 1378 parse_destroy(char *l) 1379 { 1380 struct sysctlnode node; 1381 size_t sz; 1382 int name[CTL_MAXNAME], rc; 1383 u_int namelen; 1384 1385 if (!wflag) { 1386 sysctlperror("Must specify -w to destroy nodes\n"); 1387 exit(1); 1388 } 1389 1390 memset(name, 0, sizeof(name)); 1391 namelen = sizeof(name) / sizeof(name[0]); 1392 sz = sizeof(gsname); 1393 rc = sysctlgetmibinfo(l, &name[0], &namelen, gsname, &sz, NULL, 1394 SYSCTL_VERSION); 1395 if (rc == -1) { 1396 sysctlparseerror(namelen, l); 1397 EXIT(1); 1398 } 1399 1400 memset(&node, 0, sizeof(node)); 1401 node.sysctl_flags = SYSCTL_VERSION; 1402 node.sysctl_num = name[namelen - 1]; 1403 name[namelen - 1] = CTL_DESTROY; 1404 1405 sz = sizeof(node); 1406 rc = sysctl(&name[0], namelen, &node, &sz, &node, sizeof(node)); 1407 1408 if (rc == -1) { 1409 sysctlperror("%s: CTL_DESTROY failed: %s\n", 1410 l, strerror(errno)); 1411 EXIT(1); 1412 } 1413 else { 1414 if (!qflag && !nflag) 1415 printf("%s(%s): (destroyed)\n", gsname, 1416 st(SYSCTL_TYPE(node.sysctl_flags))); 1417 stale = 1; 1418 } 1419 } 1420 1421 static void 1422 parse_describe(char *l) 1423 { 1424 struct sysctlnode newdesc; 1425 char buf[1024], *value; 1426 struct sysctldesc *d = (void*)&buf[0]; 1427 int name[CTL_MAXNAME], rc; 1428 u_int namelen; 1429 size_t sz; 1430 1431 if (!wflag) { 1432 sysctlperror("Must specify -w to set descriptions\n"); 1433 exit(1); 1434 } 1435 1436 value = strchr(l, '='); 1437 *value++ = '\0'; 1438 1439 memset(name, 0, sizeof(name)); 1440 namelen = sizeof(name) / sizeof(name[0]); 1441 sz = sizeof(gsname); 1442 rc = sysctlgetmibinfo(l, &name[0], &namelen, gsname, &sz, NULL, 1443 SYSCTL_VERSION); 1444 if (rc == -1) { 1445 sysctlparseerror(namelen, l); 1446 EXIT(1); 1447 } 1448 1449 sz = sizeof(buf); 1450 memset(&newdesc, 0, sizeof(newdesc)); 1451 newdesc.sysctl_flags = SYSCTL_VERSION|CTLFLAG_OWNDESC; 1452 newdesc.sysctl_num = name[namelen - 1]; 1453 newdesc.sysctl_desc = value; 1454 name[namelen - 1] = CTL_DESCRIBE; 1455 rc = sysctl(name, namelen, d, &sz, &newdesc, sizeof(newdesc)); 1456 if (rc == -1) 1457 sysctlperror("%s: CTL_DESCRIBE failed: %s\n", 1458 gsname, strerror(errno)); 1459 else if (d->descr_len == 1) 1460 sysctlperror("%s: description not set\n", gsname); 1461 else if (!qflag && !nflag) 1462 printf("%s: %s\n", gsname, d->descr_str); 1463 } 1464 1465 /* 1466 * ******************************************************************** 1467 * when things go wrong... 1468 * ******************************************************************** 1469 */ 1470 static void 1471 usage(void) 1472 { 1473 const char *progname = getprogname(); 1474 1475 (void)fprintf(stderr, 1476 "usage:\t%s %s\n" 1477 "\t%s %s\n" 1478 "\t%s %s\n" 1479 "\t%s %s\n" 1480 "\t%s %s\n" 1481 "\t%s %s\n", 1482 progname, "[-dne] [-x[x]|-r] variable ...", 1483 progname, "[-ne] [-q] -w variable=value ...", 1484 progname, "[-dne] -a", 1485 progname, "[-dne] -A", 1486 progname, "[-ne] -M", 1487 progname, "[-dne] [-q] -f file"); 1488 exit(1); 1489 } 1490 1491 static void 1492 getdesc1(int *name, u_int namelen, struct sysctlnode *pnode) 1493 { 1494 struct sysctlnode node; 1495 char buf[1024], *desc; 1496 struct sysctldesc *d = (void*)buf; 1497 size_t sz = sizeof(buf); 1498 int rc; 1499 1500 memset(&node, 0, sizeof(node)); 1501 node.sysctl_flags = SYSCTL_VERSION; 1502 node.sysctl_num = name[namelen - 1]; 1503 name[namelen - 1] = CTL_DESCRIBE; 1504 rc = sysctl(name, namelen, d, &sz, &node, sizeof(node)); 1505 1506 if (rc == -1 || 1507 d->descr_len == 1 || 1508 d->descr_num != pnode->sysctl_num || 1509 d->descr_ver != pnode->sysctl_ver) 1510 desc = (char *)-1; 1511 else 1512 desc = malloc(d->descr_len); 1513 1514 if (desc == NULL) 1515 desc = (char *)-1; 1516 if (desc != (char *)-1) 1517 memcpy(desc, &d->descr_str[0], d->descr_len); 1518 name[namelen - 1] = node.sysctl_num; 1519 if (pnode->sysctl_desc != NULL && 1520 pnode->sysctl_desc != (const char *)-1) 1521 free(__UNCONST(pnode->sysctl_desc)); 1522 pnode->sysctl_desc = desc; 1523 } 1524 1525 static void 1526 getdesc(int *name, u_int namelen, struct sysctlnode *pnode) 1527 { 1528 struct sysctlnode *node = pnode->sysctl_child; 1529 struct sysctldesc *d, *p, *plim; 1530 char *desc; 1531 size_t i, sz; 1532 int rc; 1533 1534 sz = 128 * pnode->sysctl_clen; 1535 name[namelen] = CTL_DESCRIBE; 1536 1537 /* 1538 * attempt *twice* to get the description chunk. if two tries 1539 * doesn't work, give up. 1540 */ 1541 i = 0; 1542 do { 1543 d = malloc(sz); 1544 if (d == NULL) 1545 return; 1546 rc = sysctl(name, namelen + 1, d, &sz, NULL, 0); 1547 if (rc == -1) { 1548 free(d); 1549 d = NULL; 1550 if (i == 0 && errno == ENOMEM) 1551 i = 1; 1552 else 1553 return; 1554 } 1555 } while (d == NULL); 1556 1557 /* 1558 * hokey nested loop here, giving O(n**2) behavior, but should 1559 * suffice for now 1560 */ 1561 plim = /*LINTED ptr cast*/(struct sysctldesc *)((char*)d + sz); 1562 for (i = 0; i < pnode->sysctl_clen; i++) { 1563 node = &pnode->sysctl_child[i]; 1564 for (p = d; p < plim; p = NEXT_DESCR(p)) 1565 if (node->sysctl_num == p->descr_num) 1566 break; 1567 if (p < plim && node->sysctl_ver == p->descr_ver) { 1568 /* 1569 * match found, attempt to attach description 1570 */ 1571 if (p->descr_len == 1) 1572 desc = NULL; 1573 else 1574 desc = malloc(p->descr_len); 1575 if (desc == NULL) 1576 desc = (char *)-1; 1577 else 1578 memcpy(desc, &p->descr_str[0], p->descr_len); 1579 node->sysctl_desc = desc; 1580 } 1581 } 1582 1583 free(d); 1584 } 1585 1586 static void 1587 trim_whitespace(char *s, int dir) 1588 { 1589 char *i, *o; 1590 1591 i = o = s; 1592 if (dir & 1) 1593 while (isspace((unsigned char)*i)) 1594 i++; 1595 while ((*o++ = *i++) != '\0'); 1596 o -= 2; /* already past nul, skip back to before it */ 1597 if (dir & 2) 1598 while (o > s && isspace((unsigned char)*o)) 1599 *o-- = '\0'; 1600 } 1601 1602 void 1603 sysctlerror(int soft) 1604 { 1605 if (soft) { 1606 switch (errno) { 1607 case ENOENT: 1608 case ENOPROTOOPT: 1609 case ENOTDIR: 1610 case EINVAL: 1611 case EOPNOTSUPP: 1612 case EPROTONOSUPPORT: 1613 if (Aflag || req) 1614 sysctlperror("%s: the value is not available\n", 1615 gsname); 1616 return; 1617 } 1618 } 1619 1620 sysctlperror("%s: sysctl() failed with %s\n", 1621 gsname, strerror(errno)); 1622 if (!soft) 1623 EXIT(1); 1624 } 1625 1626 void 1627 sysctlparseerror(u_int namelen, const char *pname) 1628 { 1629 1630 sysctlperror("%s level name '%s' in '%s' is invalid\n", 1631 lname[namelen], gsname, pname); 1632 } 1633 1634 static void 1635 sysctlperror(const char *fmt, ...) 1636 { 1637 va_list ap; 1638 1639 (void)fprintf(warnfp, "%s: ", getprogname()); 1640 if (fn) 1641 (void)fprintf(warnfp, "%s#%zu: ", fn, nr); 1642 va_start(ap, fmt); 1643 (void)vfprintf(warnfp, fmt, ap); 1644 va_end(ap); 1645 errs++; 1646 } 1647 1648 1649 /* 1650 * ******************************************************************** 1651 * how to write to a "simple" node 1652 * ******************************************************************** 1653 */ 1654 static void 1655 write_number(int *name, u_int namelen, struct sysctlnode *node, char *value) 1656 { 1657 u_int ii, io; 1658 u_quad_t qi, qo; 1659 size_t si, so; 1660 int rc; 1661 void *i, *o; 1662 char *t; 1663 1664 if (fn) 1665 trim_whitespace(value, 3); 1666 1667 si = so = 0; 1668 i = o = NULL; 1669 errno = 0; 1670 qi = strtouq(value, &t, 0); 1671 if (qi == UQUAD_MAX && errno == ERANGE) { 1672 sysctlperror("%s: %s\n", value, strerror(errno)); 1673 EXIT(1); 1674 } 1675 if (t == value || *t != '\0') { 1676 sysctlperror("%s: not a number\n", value); 1677 EXIT(1); 1678 } 1679 1680 switch (SYSCTL_TYPE(node->sysctl_flags)) { 1681 case CTLTYPE_INT: 1682 ii = (u_int)qi; 1683 io = (u_int)(qi >> 32); 1684 if (io != (u_int)-1 && io != 0) { 1685 sysctlperror("%s: %s\n", value, strerror(ERANGE)); 1686 EXIT(1); 1687 } 1688 o = &io; 1689 so = sizeof(io); 1690 i = ⅈ 1691 si = sizeof(ii); 1692 break; 1693 case CTLTYPE_QUAD: 1694 o = &qo; 1695 so = sizeof(qo); 1696 i = &qi; 1697 si = sizeof(qi); 1698 break; 1699 } 1700 1701 rc = sysctl(name, namelen, o, &so, i, si); 1702 if (rc == -1) { 1703 sysctlerror(0); 1704 return; 1705 } 1706 1707 switch (SYSCTL_TYPE(node->sysctl_flags)) { 1708 case CTLTYPE_INT: 1709 display_number(node, gsname, &io, sizeof(io), DISPLAY_OLD); 1710 display_number(node, gsname, &ii, sizeof(ii), DISPLAY_NEW); 1711 break; 1712 case CTLTYPE_QUAD: 1713 display_number(node, gsname, &qo, sizeof(qo), DISPLAY_OLD); 1714 display_number(node, gsname, &qi, sizeof(qi), DISPLAY_NEW); 1715 break; 1716 } 1717 } 1718 1719 static void 1720 write_string(int *name, u_int namelen, struct sysctlnode *node, char *value) 1721 { 1722 char *i, *o; 1723 size_t si, so; 1724 int rc; 1725 1726 i = value; 1727 si = strlen(i) + 1; 1728 so = node->sysctl_size; 1729 if (si > so && so != 0) { 1730 sysctlperror("%s: string too long\n", value); 1731 EXIT(1); 1732 } 1733 o = malloc(so); 1734 if (o == NULL) { 1735 sysctlperror("%s: !malloc failed!\n", gsname); 1736 exit(1); 1737 } 1738 1739 rc = sysctl(name, namelen, o, &so, i, si); 1740 if (rc == -1) { 1741 sysctlerror(0); 1742 return; 1743 } 1744 1745 display_string(node, gsname, o, so, DISPLAY_OLD); 1746 display_string(node, gsname, i, si, DISPLAY_NEW); 1747 free(o); 1748 } 1749 1750 /* 1751 * ******************************************************************** 1752 * simple ways to print stuff consistently 1753 * ******************************************************************** 1754 */ 1755 static void 1756 display_number(const struct sysctlnode *node, const char *name, 1757 const void *data, size_t sz, int n) 1758 { 1759 u_quad_t q; 1760 int i; 1761 1762 if (qflag) 1763 return; 1764 if ((nflag || rflag) && (n == DISPLAY_OLD)) 1765 return; 1766 1767 if (rflag && n != DISPLAY_OLD) { 1768 fwrite(data, sz, 1, stdout); 1769 return; 1770 } 1771 1772 if (!nflag) { 1773 if (n == DISPLAY_VALUE) 1774 printf("%s%s", name, eq); 1775 else if (n == DISPLAY_OLD) 1776 printf("%s: ", name); 1777 } 1778 1779 if (xflag > 1) { 1780 if (n != DISPLAY_NEW) 1781 printf("\n"); 1782 hex_dump(data, sz); 1783 return; 1784 } 1785 1786 switch (SYSCTL_TYPE(node->sysctl_flags)) { 1787 case CTLTYPE_INT: 1788 memcpy(&i, data, sz); 1789 if (xflag) 1790 printf("0x%0*x", (int)sz * 2, i); 1791 else if (node->sysctl_flags & CTLFLAG_HEX) 1792 printf("%#x", i); 1793 else 1794 printf("%d", i); 1795 break; 1796 case CTLTYPE_QUAD: 1797 memcpy(&q, data, sz); 1798 if (xflag) 1799 printf("0x%0*" PRIx64, (int)sz * 2, q); 1800 else if (node->sysctl_flags & CTLFLAG_HEX) 1801 printf("%#" PRIx64, q); 1802 else 1803 printf("%" PRIu64, q); 1804 break; 1805 } 1806 1807 if (n == DISPLAY_OLD) 1808 printf(" -> "); 1809 else 1810 printf("\n"); 1811 } 1812 1813 static void 1814 display_string(const struct sysctlnode *node, const char *name, 1815 const void *data, size_t sz, int n) 1816 { 1817 const unsigned char *buf = data; 1818 int ni; 1819 1820 if (qflag) 1821 return; 1822 if ((nflag || rflag) && (n == DISPLAY_OLD)) 1823 return; 1824 1825 if (rflag && n != DISPLAY_OLD) { 1826 fwrite(data, sz, 1, stdout); 1827 return; 1828 } 1829 1830 if (!nflag) { 1831 if (n == DISPLAY_VALUE) 1832 printf("%s%s", name, eq); 1833 else if (n == DISPLAY_OLD) 1834 printf("%s: ", name); 1835 } 1836 1837 if (xflag > 1) { 1838 if (n != DISPLAY_NEW) 1839 printf("\n"); 1840 hex_dump(data, sz); 1841 return; 1842 } 1843 1844 if (xflag || node->sysctl_flags & CTLFLAG_HEX) { 1845 for (ni = 0; ni < (int)sz; ni++) { 1846 if (xflag) 1847 printf("%02x", buf[ni]); 1848 if (buf[ni] == '\0') 1849 break; 1850 if (!xflag) 1851 printf("\\x%2.2x", buf[ni]); 1852 } 1853 } 1854 else 1855 printf("%.*s", (int)sz, buf); 1856 1857 if (n == DISPLAY_OLD) 1858 printf(" -> "); 1859 else 1860 printf("\n"); 1861 } 1862 1863 /*ARGSUSED*/ 1864 static void 1865 display_struct(const struct sysctlnode *node, const char *name, 1866 const void *data, size_t sz, int n) 1867 { 1868 const unsigned char *buf = data; 1869 int ni; 1870 size_t more; 1871 1872 if (qflag) 1873 return; 1874 if (!(xflag || rflag)) { 1875 if (Aflag || req) 1876 sysctlperror( 1877 "%s: this type is unknown to this program\n", 1878 gsname); 1879 return; 1880 } 1881 if ((nflag || rflag) && (n == DISPLAY_OLD)) 1882 return; 1883 1884 if (rflag && n != DISPLAY_OLD) { 1885 fwrite(data, sz, 1, stdout); 1886 return; 1887 } 1888 1889 if (!nflag) { 1890 if (n == DISPLAY_VALUE) 1891 printf("%s%s", name, eq); 1892 else if (n == DISPLAY_OLD) 1893 printf("%s: ", name); 1894 } 1895 1896 if (xflag > 1) { 1897 if (n != DISPLAY_NEW) 1898 printf("\n"); 1899 hex_dump(data, sz); 1900 return; 1901 } 1902 1903 if (sz > 16) { 1904 more = sz - 16; 1905 sz = 16; 1906 } 1907 else 1908 more = 0; 1909 for (ni = 0; ni < (int)sz; ni++) 1910 printf("%02x", buf[ni]); 1911 if (more) 1912 printf("...(%zu more bytes)", more); 1913 printf("\n"); 1914 } 1915 1916 static void 1917 hex_dump(const unsigned char *buf, size_t len) 1918 { 1919 unsigned int i; 1920 int j; 1921 char line[80], tmp[12]; 1922 1923 memset(line, ' ', sizeof(line)); 1924 for (i = 0, j = 15; i < len; i++) { 1925 j = i % 16; 1926 /* reset line */ 1927 if (j == 0) { 1928 line[58] = '|'; 1929 line[77] = '|'; 1930 line[78] = 0; 1931 snprintf(tmp, sizeof(tmp), "%07x", i); 1932 memcpy(&line[0], tmp, 7); 1933 } 1934 /* copy out hex version of byte */ 1935 snprintf(tmp, sizeof(tmp), "%02x", buf[i]); 1936 memcpy(&line[9 + j * 3], tmp, 2); 1937 /* copy out plain version of byte */ 1938 line[60 + j] = (isprint(buf[i])) ? buf[i] : '.'; 1939 /* print a full line and erase it */ 1940 if (j == 15) { 1941 printf("%s\n", line); 1942 memset(line, ' ', sizeof(line)); 1943 } 1944 } 1945 if (line[0] != ' ') 1946 printf("%s\n", line); 1947 printf("%07zu bytes\n", len); 1948 } 1949 1950 /* 1951 * ******************************************************************** 1952 * functions that handle particular nodes 1953 * ******************************************************************** 1954 */ 1955 /*ARGSUSED*/ 1956 static void 1957 printother(HANDLER_ARGS) 1958 { 1959 int rc; 1960 void *p; 1961 size_t sz1, sz2; 1962 1963 if (!(Aflag || req) || Mflag) 1964 return; 1965 1966 /* 1967 * okay...you asked for it, so let's give it a go 1968 */ 1969 while (type != CTLTYPE_NODE && (xflag || rflag)) { 1970 rc = sysctl(name, namelen, NULL, &sz1, NULL, 0); 1971 if (rc == -1 || sz1 == 0) 1972 break; 1973 p = malloc(sz1); 1974 if (p == NULL) 1975 break; 1976 sz2 = sz1; 1977 rc = sysctl(name, namelen, p, &sz2, NULL, 0); 1978 if (rc == -1 || sz1 != sz2) { 1979 free(p); 1980 break; 1981 } 1982 display_struct(pnode, gsname, p, sz1, DISPLAY_VALUE); 1983 free(p); 1984 return; 1985 } 1986 1987 /* 1988 * that didn't work...do we have a specific message for this 1989 * thing? 1990 */ 1991 if (v != NULL) { 1992 sysctlperror("%s: use '%s' to view this information\n", 1993 gsname, (const char *)v); 1994 return; 1995 } 1996 1997 /* 1998 * hmm...i wonder if we have any generic hints? 1999 */ 2000 switch (name[0]) { 2001 case CTL_NET: 2002 sysctlperror("%s: use 'netstat' to view this information\n", 2003 sname); 2004 break; 2005 case CTL_DEBUG: 2006 sysctlperror("%s: missing 'options DEBUG' from kernel?\n", 2007 sname); 2008 break; 2009 case CTL_DDB: 2010 sysctlperror("%s: missing 'options DDB' from kernel?\n", 2011 sname); 2012 break; 2013 case CTL_VENDOR: 2014 sysctlperror("%s: no vendor extensions installed\n", 2015 sname); 2016 break; 2017 } 2018 } 2019 2020 /*ARGSUSED*/ 2021 static void 2022 kern_clockrate(HANDLER_ARGS) 2023 { 2024 struct clockinfo clkinfo; 2025 size_t sz; 2026 int rc; 2027 2028 sz = sizeof(clkinfo); 2029 rc = sysctl(name, namelen, &clkinfo, &sz, NULL, 0); 2030 if (rc == -1) { 2031 sysctlerror(1); 2032 return; 2033 } 2034 if (sz != sizeof(clkinfo)) 2035 errx(1, "%s: !returned size wrong!", sname); 2036 2037 if (xflag || rflag) { 2038 display_struct(pnode, sname, &clkinfo, sz, 2039 DISPLAY_VALUE); 2040 return; 2041 } 2042 else if (!nflag) 2043 printf("%s: ", sname); 2044 printf("tick = %d, tickadj = %d, hz = %d, profhz = %d, stathz = %d\n", 2045 clkinfo.tick, clkinfo.tickadj, 2046 clkinfo.hz, clkinfo.profhz, clkinfo.stathz); 2047 } 2048 2049 /*ARGSUSED*/ 2050 static void 2051 kern_boottime(HANDLER_ARGS) 2052 { 2053 struct timeval timeval; 2054 time_t boottime; 2055 size_t sz; 2056 int rc; 2057 2058 sz = sizeof(timeval); 2059 rc = sysctl(name, namelen, &timeval, &sz, NULL, 0); 2060 if (rc == -1) { 2061 sysctlerror(1); 2062 return; 2063 } 2064 if (sz != sizeof(timeval)) 2065 errx(1, "%s: !returned size wrong!", sname); 2066 2067 boottime = timeval.tv_sec; 2068 if (xflag || rflag) 2069 display_struct(pnode, sname, &timeval, sz, 2070 DISPLAY_VALUE); 2071 else if (!nflag) 2072 /* ctime() provides the \n */ 2073 printf("%s%s%s", sname, eq, ctime(&boottime)); 2074 else if (nflag == 1) 2075 printf("%ld\n", (long)boottime); 2076 else 2077 printf("%ld.%06ld\n", (long)timeval.tv_sec, 2078 (long)timeval.tv_usec); 2079 } 2080 2081 /*ARGSUSED*/ 2082 static void 2083 kern_consdev(HANDLER_ARGS) 2084 { 2085 dev_t cons; 2086 size_t sz; 2087 int rc; 2088 2089 sz = sizeof(cons); 2090 rc = sysctl(name, namelen, &cons, &sz, NULL, 0); 2091 if (rc == -1) { 2092 sysctlerror(1); 2093 return; 2094 } 2095 if (sz != sizeof(cons)) 2096 errx(1, "%s: !returned size wrong!", sname); 2097 2098 if (xflag || rflag) 2099 display_struct(pnode, sname, &cons, sz, 2100 DISPLAY_VALUE); 2101 else { 2102 if (!nflag) 2103 printf("%s%s", sname, eq); 2104 if (nflag < 2 && (sname = devname(cons, S_IFCHR)) != NULL) 2105 printf("%s\n", sname); 2106 else 2107 printf("0x%llx\n", (unsigned long long)cons); 2108 } 2109 } 2110 2111 /*ARGSUSED*/ 2112 static void 2113 kern_cp_time(HANDLER_ARGS) 2114 { 2115 u_int64_t *cp_time; 2116 size_t sz, osz; 2117 int rc, i, n; 2118 char s[sizeof("kern.cp_time.nnnnnn")]; 2119 const char *tname; 2120 2121 /* 2122 * three things to do here. 2123 * case 1: get sum (no Aflag and namelen == 2) 2124 * case 2: get specific processor (namelen == 3) 2125 * case 3: get all processors (Aflag and namelen == 2) 2126 */ 2127 2128 if (namelen == 2 && Aflag) { 2129 sz = sizeof(n); 2130 rc = sysctlbyname("hw.ncpu", &n, &sz, NULL, 0); 2131 if (rc != 0) 2132 return; /* XXX print an error, eh? */ 2133 n++; /* Add on space for the sum. */ 2134 sz = n * sizeof(u_int64_t) * CPUSTATES; 2135 } 2136 else { 2137 n = -1; /* Just print one data set. */ 2138 sz = sizeof(u_int64_t) * CPUSTATES; 2139 } 2140 2141 cp_time = malloc(sz); 2142 if (cp_time == NULL) { 2143 sysctlerror(1); 2144 return; 2145 } 2146 2147 osz = sz; 2148 rc = sysctl(name, namelen, cp_time + (n != -1) * CPUSTATES, &osz, 2149 NULL, 0); 2150 2151 if (rc == -1) { 2152 sysctlerror(1); 2153 free(cp_time); 2154 return; 2155 } 2156 2157 /* 2158 * Check, but account for space we'll occupy with the sum. 2159 */ 2160 if (osz != sz - (n != -1) * CPUSTATES * sizeof(u_int64_t)) 2161 errx(1, "%s: !returned size wrong!", sname); 2162 2163 /* 2164 * Compute the actual sum. Two calls would be easier (we 2165 * could just call ourselves recursively above), but the 2166 * numbers wouldn't add up. 2167 */ 2168 if (n != -1) { 2169 memset(cp_time, 0, sizeof(u_int64_t) * CPUSTATES); 2170 for (i = 1; i < n; i++) { 2171 cp_time[CP_USER] += cp_time[i * CPUSTATES + CP_USER]; 2172 cp_time[CP_NICE] += cp_time[i * CPUSTATES + CP_NICE]; 2173 cp_time[CP_SYS] += cp_time[i * CPUSTATES + CP_SYS]; 2174 cp_time[CP_INTR] += cp_time[i * CPUSTATES + CP_INTR]; 2175 cp_time[CP_IDLE] += cp_time[i * CPUSTATES + CP_IDLE]; 2176 } 2177 } 2178 2179 tname = sname; 2180 for (i = 0; n == -1 || i < n; i++) { 2181 if (i > 0) { 2182 (void)snprintf(s, sizeof(s), "%s%s%d", sname, sep, 2183 i - 1); 2184 tname = s; 2185 } 2186 if (xflag || rflag) 2187 display_struct(pnode, tname, cp_time + (i * CPUSTATES), 2188 sizeof(u_int64_t) * CPUSTATES, 2189 DISPLAY_VALUE); 2190 else { 2191 if (!nflag) 2192 printf("%s: ", tname); 2193 printf("user = %" PRIu64 2194 ", nice = %" PRIu64 2195 ", sys = %" PRIu64 2196 ", intr = %" PRIu64 2197 ", idle = %" PRIu64 2198 "\n", 2199 cp_time[i * CPUSTATES + CP_USER], 2200 cp_time[i * CPUSTATES + CP_NICE], 2201 cp_time[i * CPUSTATES + CP_SYS], 2202 cp_time[i * CPUSTATES + CP_INTR], 2203 cp_time[i * CPUSTATES + CP_IDLE]); 2204 } 2205 /* 2206 * Just printing the one node. 2207 */ 2208 if (n == -1) 2209 break; 2210 } 2211 2212 free(cp_time); 2213 } 2214 2215 /*ARGSUSED*/ 2216 static void 2217 kern_drivers(HANDLER_ARGS) 2218 { 2219 struct kinfo_drivers *kd; 2220 size_t sz, i; 2221 int rc; 2222 const char *comma; 2223 2224 rc = sysctl(name, namelen, NULL, &sz, NULL, 0); 2225 if (rc == -1) { 2226 sysctlerror(1); 2227 return; 2228 } 2229 2230 if (sz % sizeof(*kd)) 2231 err(1, "bad size %zu for kern.drivers", sz); 2232 2233 kd = malloc(sz); 2234 if (kd == NULL) { 2235 sysctlerror(1); 2236 return; 2237 } 2238 2239 rc = sysctl(name, namelen, kd, &sz, NULL, 0); 2240 if (rc == -1) { 2241 sysctlerror(1); 2242 return; 2243 } 2244 2245 comma = ""; 2246 if (!nflag) 2247 printf("%s%s", sname, eq); 2248 for (i = 0, sz /= sizeof(*kd); i < sz; i++) { 2249 (void)printf("%s[%d %d %s]", comma, kd[i].d_cmajor, 2250 kd[i].d_bmajor, kd[i].d_name); 2251 comma = ", "; 2252 } 2253 (void)printf("\n"); 2254 free(kd); 2255 } 2256 2257 /*ARGSUSED*/ 2258 static void 2259 kern_cp_id(HANDLER_ARGS) 2260 { 2261 u_int64_t *cp_id; 2262 size_t sz, osz; 2263 int rc, i, n; 2264 char s[sizeof("kern.cp_id.nnnnnn")]; 2265 const char *tname; 2266 struct sysctlnode node = *pnode; 2267 2268 /* 2269 * three things to do here. 2270 * case 1: print a specific cpu id (namelen == 3) 2271 * case 2: print all cpu ids separately (Aflag set) 2272 * case 3: print all cpu ids on one line 2273 */ 2274 2275 if (namelen == 2) { 2276 sz = sizeof(n); 2277 rc = sysctlbyname("hw.ncpu", &n, &sz, NULL, 0); 2278 if (rc != 0) 2279 return; /* XXX print an error, eh? */ 2280 sz = n * sizeof(u_int64_t); 2281 } 2282 else { 2283 n = -1; /* Just print one cpu id. */ 2284 sz = sizeof(u_int64_t); 2285 } 2286 2287 cp_id = malloc(sz); 2288 if (cp_id == NULL) { 2289 sysctlerror(1); 2290 return; 2291 } 2292 2293 osz = sz; 2294 rc = sysctl(name, namelen, cp_id, &osz, NULL, 0); 2295 if (rc == -1) { 2296 sysctlerror(1); 2297 free(cp_id); 2298 return; 2299 } 2300 2301 /* 2302 * Check that we got back what we asked for. 2303 */ 2304 if (osz != sz) 2305 errx(1, "%s: !returned size wrong!", sname); 2306 2307 /* pretend for output purposes */ 2308 node.sysctl_flags = SYSCTL_FLAGS(pnode->sysctl_flags) | 2309 SYSCTL_TYPE(CTLTYPE_QUAD); 2310 2311 tname = sname; 2312 if (namelen == 3) 2313 display_number(&node, tname, cp_id, 2314 sizeof(u_int64_t), 2315 DISPLAY_VALUE); 2316 else if (Aflag) { 2317 for (i = 0; i < n; i++) 2318 (void)snprintf(s, sizeof(s), "%s%s%d", sname, sep, i); 2319 tname = s; 2320 display_number(&node, tname, &cp_id[i], 2321 sizeof(u_int64_t), 2322 DISPLAY_VALUE); 2323 } 2324 else { 2325 if (xflag || rflag) 2326 display_struct(pnode, tname, cp_id, sz, DISPLAY_VALUE); 2327 else { 2328 if (!nflag) 2329 printf("%s: ", tname); 2330 for (i = 0; i < n; i++) { 2331 if (i) 2332 printf(", "); 2333 printf("%d = %" PRIu64, i, cp_id[i]); 2334 } 2335 printf("\n"); 2336 } 2337 } 2338 2339 free(cp_id); 2340 } 2341 2342 /*ARGSUSED*/ 2343 static void 2344 vm_loadavg(HANDLER_ARGS) 2345 { 2346 struct loadavg loadavg; 2347 size_t sz; 2348 int rc; 2349 2350 sz = sizeof(loadavg); 2351 rc = sysctl(name, namelen, &loadavg, &sz, NULL, 0); 2352 if (rc == -1) { 2353 sysctlerror(1); 2354 return; 2355 } 2356 if (sz != sizeof(loadavg)) 2357 errx(1, "%s: !returned size wrong!", sname); 2358 2359 if (xflag || rflag) { 2360 display_struct(pnode, sname, &loadavg, sz, 2361 DISPLAY_VALUE); 2362 return; 2363 } 2364 if (!nflag) 2365 printf("%s: ", sname); 2366 printf("%.2f %.2f %.2f\n", 2367 (double) loadavg.ldavg[0] / loadavg.fscale, 2368 (double) loadavg.ldavg[1] / loadavg.fscale, 2369 (double) loadavg.ldavg[2] / loadavg.fscale); 2370 } 2371 2372 /*ARGSUSED*/ 2373 static void 2374 proc_limit(HANDLER_ARGS) 2375 { 2376 u_quad_t olim, *newp, nlim; 2377 size_t osz, nsz; 2378 char *t; 2379 int rc; 2380 2381 if (fn) 2382 trim_whitespace(value, 3); 2383 2384 osz = sizeof(olim); 2385 if (value != NULL) { 2386 nsz = sizeof(nlim); 2387 newp = &nlim; 2388 if (strcmp(value, "unlimited") == 0) 2389 nlim = RLIM_INFINITY; 2390 else { 2391 errno = 0; 2392 nlim = strtouq(value, &t, 0); 2393 if (t == value || *t != '\0' || errno != 0) { 2394 sysctlperror("%s: '%s' is not a valid limit\n", 2395 sname, value); 2396 EXIT(1); 2397 } 2398 } 2399 } 2400 else { 2401 nsz = 0; 2402 newp = NULL; 2403 } 2404 2405 rc = sysctl(name, namelen, &olim, &osz, newp, nsz); 2406 if (rc == -1) { 2407 sysctlerror(newp == NULL); 2408 return; 2409 } 2410 2411 if (newp && qflag) 2412 return; 2413 2414 if (rflag || xflag || olim != RLIM_INFINITY) 2415 display_number(pnode, sname, &olim, sizeof(olim), 2416 newp ? DISPLAY_OLD : DISPLAY_VALUE); 2417 else 2418 display_string(pnode, sname, "unlimited", 10, 2419 newp ? DISPLAY_OLD : DISPLAY_VALUE); 2420 2421 if (newp) { 2422 if (rflag || xflag || nlim != RLIM_INFINITY) 2423 display_number(pnode, sname, &nlim, sizeof(nlim), 2424 DISPLAY_NEW); 2425 else 2426 display_string(pnode, sname, "unlimited", 10, 2427 DISPLAY_NEW); 2428 } 2429 } 2430 2431 #ifdef CPU_DISKINFO 2432 /*ARGSUSED*/ 2433 static void 2434 machdep_diskinfo(HANDLER_ARGS) 2435 { 2436 struct disklist *dl; 2437 struct biosdisk_info *bi; 2438 struct nativedisk_info *ni; 2439 int rc; 2440 size_t sz; 2441 uint i, b, lim; 2442 2443 rc = sysctl(name, namelen, NULL, &sz, NULL, 0); 2444 if (rc == -1) { 2445 sysctlerror(1); 2446 return; 2447 } 2448 dl = malloc(sz); 2449 if (dl == NULL) { 2450 sysctlerror(1); 2451 return; 2452 } 2453 rc = sysctl(name, namelen, dl, &sz, NULL, 0); 2454 if (rc == -1) { 2455 sysctlerror(1); 2456 return; 2457 } 2458 2459 if (!nflag) 2460 printf("%s: ", sname); 2461 lim = dl->dl_nbiosdisks; 2462 if (lim > MAX_BIOSDISKS) 2463 lim = MAX_BIOSDISKS; 2464 for (bi = dl->dl_biosdisks, i = 0; i < lim; bi++, i++) 2465 printf("%x:%" PRIu64 "(%d/%d/%d),%x ", 2466 bi->bi_dev, bi->bi_lbasecs, 2467 bi->bi_cyl, bi->bi_head, bi->bi_sec, 2468 bi->bi_flags); 2469 lim = dl->dl_nnativedisks; 2470 ni = dl->dl_nativedisks; 2471 bi = dl->dl_biosdisks; 2472 /* LINTED -- pointer casts are tedious */ 2473 if ((char *)&ni[lim] != (char *)dl + sz) { 2474 sysctlperror("%s: size mismatch\n", gsname); 2475 return; 2476 } 2477 for (i = 0; i < lim; ni++, i++) { 2478 char t = ':'; 2479 printf(" %.*s", (int)sizeof ni->ni_devname, 2480 ni->ni_devname); 2481 for (b = 0; b < (unsigned int)ni->ni_nmatches; t = ',', b++) 2482 printf("%c%x", t, 2483 bi[ni->ni_biosmatches[b]].bi_dev); 2484 } 2485 printf("\n"); 2486 free(dl); 2487 } 2488 #endif /* CPU_DISKINFO */ 2489 2490 /*ARGSUSED*/ 2491 static void 2492 mode_bits(HANDLER_ARGS) 2493 { 2494 char buf[12], outbuf[100]; 2495 int o, m, *newp, rc; 2496 size_t osz, nsz; 2497 mode_t om, mm; 2498 2499 if (fn) 2500 trim_whitespace(value, 3); 2501 2502 newp = NULL; 2503 osz = sizeof(o); 2504 if (value != NULL) { 2505 void *foo; 2506 int tt; 2507 size_t ttsz = sizeof(tt); 2508 mode_t old_umask; 2509 2510 nsz = sizeof(m); 2511 newp = &m; 2512 errno = 0; 2513 rc = sysctl(name, namelen, &tt, &ttsz, NULL, 0); 2514 if (rc == -1) { 2515 sysctlperror("%s: failed query\n", sname); 2516 return; 2517 } 2518 2519 old_umask = umask(0); 2520 foo = setmode(value); 2521 umask(old_umask); 2522 if (foo == NULL) { 2523 sysctlperror("%s: '%s' is an invalid mode\n", sname, 2524 value); 2525 EXIT(1); 2526 } 2527 old_umask = umask(0); 2528 m = getmode(foo, (mode_t)tt); 2529 umask(old_umask); 2530 if (errno) { 2531 sysctlperror("%s: '%s' is an invalid mode\n", sname, 2532 value); 2533 EXIT(1); 2534 } 2535 } 2536 else { 2537 nsz = 0; 2538 newp = NULL; 2539 } 2540 2541 rc = sysctl(name, namelen, &o, &osz, newp, nsz); 2542 if (rc == -1) { 2543 sysctlerror(newp == NULL); 2544 return; 2545 } 2546 2547 if (newp && qflag) 2548 return; 2549 2550 om = (mode_t)o; 2551 mm = (mode_t)m; 2552 2553 if (rflag || xflag) 2554 display_number(pnode, sname, &o, sizeof(o), 2555 newp ? DISPLAY_OLD : DISPLAY_VALUE); 2556 else { 2557 memset(buf, 0, sizeof(buf)); 2558 strmode(om, buf); 2559 rc = snprintf(outbuf, sizeof(outbuf), "%04o (%s)", om, buf + 1); 2560 display_string(pnode, sname, outbuf, rc, newp ? DISPLAY_OLD : DISPLAY_VALUE); 2561 } 2562 2563 if (newp) { 2564 if (rflag || xflag) 2565 display_number(pnode, sname, &m, sizeof(m), 2566 DISPLAY_NEW); 2567 else { 2568 memset(buf, 0, sizeof(buf)); 2569 strmode(mm, buf); 2570 rc = snprintf(outbuf, sizeof(outbuf), "%04o (%s)", mm, buf + 1); 2571 display_string(pnode, sname, outbuf, rc, DISPLAY_NEW); 2572 } 2573 } 2574 } 2575