sysctl.c revision 1.111
1 /* $NetBSD: sysctl.c,v 1.111 2006/02/08 18:13:56 christos 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 * 3. Neither the name of The NetBSD Foundation nor the names of its 19 * contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 /* 36 * Copyright (c) 1993 37 * The Regents of the University of California. All rights reserved. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. Neither the name of the University nor the names of its contributors 48 * may be used to endorse or promote products derived from this software 49 * without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 53 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 54 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 55 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 56 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 57 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 58 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 59 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 60 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 61 * SUCH DAMAGE. 62 */ 63 64 #include <sys/cdefs.h> 65 #ifndef lint 66 __COPYRIGHT( 67 "@(#) Copyright (c) 1993\n\ 68 The Regents of the University of California. All rights reserved.\n"); 69 #endif /* not lint */ 70 71 #ifndef lint 72 #if 0 73 static char sccsid[] = "@(#)sysctl.c 8.1 (Berkeley) 6/6/93"; 74 #else 75 __RCSID("$NetBSD: sysctl.c,v 1.111 2006/02/08 18:13:56 christos Exp $"); 76 #endif 77 #endif /* not lint */ 78 79 #include <sys/types.h> 80 #include <sys/param.h> 81 #include <sys/sysctl.h> 82 #include <sys/mount.h> 83 #include <sys/resource.h> 84 #include <sys/stat.h> 85 #include <sys/sched.h> 86 #include <sys/socket.h> 87 #include <netinet/in.h> 88 #include <netinet/ip_var.h> 89 #include <netinet/tcp.h> 90 #include <netinet/tcp_timer.h> 91 #include <netinet/tcp_var.h> 92 #include <netinet/icmp6.h> 93 #include <nfs/rpcv2.h> 94 #include <nfs/nfsproto.h> 95 #include <nfs/nfs.h> 96 #include <machine/cpu.h> 97 #include <netkey/key_var.h> 98 99 #include <assert.h> 100 #include <ctype.h> 101 #include <err.h> 102 #include <errno.h> 103 #include <inttypes.h> 104 #include <regex.h> 105 #include <stdarg.h> 106 #include <stdio.h> 107 #include <stdlib.h> 108 #include <string.h> 109 #include <time.h> 110 #include <unistd.h> 111 112 /* 113 * this needs to be able to do the printing and the setting 114 */ 115 #define HANDLER_PROTO const char *, const char *, char *, \ 116 int *, u_int, const struct sysctlnode *, \ 117 u_int, void * 118 #define HANDLER_ARGS const char *sname, const char *dname, char *value, \ 119 int *name, u_int namelen, const struct sysctlnode *pnode, \ 120 u_int type, void *v 121 #define DISPLAY_VALUE 0 122 #define DISPLAY_OLD 1 123 #define DISPLAY_NEW 2 124 125 /* 126 * generic routines 127 */ 128 static const struct handlespec *findhandler(const char *, int); 129 static void canonicalize(const char *, char *); 130 static void purge_tree(struct sysctlnode *); 131 static void print_tree(int *, u_int, struct sysctlnode *, u_int, int); 132 static void write_number(int *, u_int, struct sysctlnode *, char *); 133 static void write_string(int *, u_int, struct sysctlnode *, char *); 134 static void display_number(const struct sysctlnode *, const char *, 135 const void *, size_t, int); 136 static void display_string(const struct sysctlnode *, const char *, 137 const void *, size_t, int); 138 static void display_struct(const struct sysctlnode *, const char *, 139 const void *, size_t, int); 140 static void hex_dump(const unsigned char *, size_t); 141 static void usage(void); 142 static void parse(char *); 143 static void parse_create(char *); 144 static void parse_destroy(char *); 145 static void parse_describe(char *); 146 static void getdesc1(int *, u_int, struct sysctlnode *); 147 static void getdesc(int *, u_int, struct sysctlnode *); 148 static void trim_whitespace(char *, int); 149 static void sysctlerror(int); 150 static void sysctlparseerror(u_int, const char *); 151 static void sysctlperror(const char *, ...); 152 #define EXIT(n) do { \ 153 if (fn == NULL) exit(n); else return; } while (/*CONSTCOND*/0) 154 155 /* 156 * "borrowed" from libc:sysctlgetmibinfo.c 157 */ 158 int __learn_tree(int *, u_int, struct sysctlnode *); 159 160 /* 161 * "handlers" 162 */ 163 static void printother(HANDLER_PROTO); 164 static void kern_clockrate(HANDLER_PROTO); 165 static void kern_boottime(HANDLER_PROTO); 166 static void kern_consdev(HANDLER_PROTO); 167 static void kern_cp_time(HANDLER_PROTO); 168 static void kern_cp_id(HANDLER_PROTO); 169 static void vm_loadavg(HANDLER_PROTO); 170 static void proc_limit(HANDLER_PROTO); 171 #ifdef CPU_DISKINFO 172 static void machdep_diskinfo(HANDLER_PROTO); 173 #endif /* CPU_DISKINFO */ 174 static void mode_bits(HANDLER_PROTO); 175 176 static const struct handlespec { 177 const char *ps_re; 178 void (*ps_p)(HANDLER_PROTO); 179 void (*ps_w)(HANDLER_PROTO); 180 const void *ps_d; 181 } handlers[] = { 182 { "/kern/clockrate", kern_clockrate }, 183 { "/kern/vnode", printother, NULL, "pstat" }, 184 { "/kern/proc(2|_args)?", printother, NULL, "ps" }, 185 { "/kern/file2?", printother, NULL, "pstat" }, 186 { "/kern/ntptime", printother, NULL, 187 "ntpdc -c kerninfo" }, 188 { "/kern/msgbuf", printother, NULL, "dmesg" }, 189 { "/kern/boottime", kern_boottime }, 190 { "/kern/consdev", kern_consdev }, 191 { "/kern/cp_time(/[0-9]+)?", kern_cp_time }, 192 { "/kern/sysvipc_info", printother, NULL, "ipcs" }, 193 { "/kern/cp_id(/[0-9]+)?", kern_cp_id }, 194 195 { "/vm/vmmeter", printother, NULL, 196 "vmstat' or 'systat" }, 197 { "/vm/loadavg", vm_loadavg }, 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 }, 219 #endif /* CPU_CONSDEV */ 220 #ifdef CPU_DISKINFO 221 { "/machdep/diskinfo", machdep_diskinfo }, 222 #endif /* CPU_CONSDEV */ 223 224 { "/proc/[^/]+/rlimit/[^/]+/[^/]+", proc_limit, proc_limit }, 225 226 { "/security/setid_core/mode", mode_bits, mode_bits }, 227 228 /* 229 * these will only be called when the given node has no children 230 */ 231 { "/net/[^/]+", printother, NULL, NULL }, 232 { "/debug", printother, NULL, NULL }, 233 { "/ddb", printother, NULL, NULL }, 234 { "/vendor", printother, NULL, NULL }, 235 236 { NULL }, 237 }; 238 239 struct sysctlnode my_root = { 240 #if defined(lint) 241 0 242 #else /* defined(lint) */ 243 .sysctl_flags = SYSCTL_VERSION|CTLFLAG_ROOT|CTLTYPE_NODE, 244 sysc_init_field(_sysctl_size, sizeof(struct sysctlnode)), 245 .sysctl_num = 0, 246 .sysctl_name = "(prog_root)", 247 #endif /* defined(lint) */ 248 }; 249 250 int Aflag, aflag, dflag, Mflag, nflag, qflag, rflag, wflag, xflag; 251 size_t nr; 252 char *fn; 253 int req, stale; 254 FILE *warnfp = stderr; 255 256 /* 257 * vah-riables n stuff 258 */ 259 char gsname[SYSCTL_NAMELEN * CTL_MAXNAME + CTL_MAXNAME], 260 canonname[SYSCTL_NAMELEN * CTL_MAXNAME + CTL_MAXNAME], 261 gdname[10 * CTL_MAXNAME + CTL_MAXNAME]; 262 char sep[] = "."; 263 const char *eq = " = "; 264 const char *lname[] = { 265 "top", "second", "third", "fourth", "fifth", "sixth", 266 "seventh", "eighth", "ninth", "tenth", "eleventh", "twelfth" 267 }; 268 269 /* 270 * you've heard of main, haven't you? 271 */ 272 int 273 main(int argc, char *argv[]) 274 { 275 int name[CTL_MAXNAME]; 276 int ch; 277 278 while ((ch = getopt(argc, argv, "Aabdef:Mnqrwx")) != -1) { 279 switch (ch) { 280 case 'A': 281 Aflag++; 282 break; 283 case 'a': 284 aflag++; 285 break; 286 case 'd': 287 dflag++; 288 break; 289 case 'e': 290 eq = "="; 291 break; 292 case 'f': 293 fn = optarg; 294 wflag++; 295 break; 296 case 'M': 297 Mflag++; 298 break; 299 case 'n': 300 nflag++; 301 break; 302 case 'q': 303 qflag++; 304 break; 305 case 'b': /* FreeBSD compat */ 306 case 'r': 307 rflag++; 308 break; 309 case 'w': 310 wflag++; 311 break; 312 case 'x': 313 xflag++; 314 break; 315 default: 316 usage(); 317 } 318 } 319 320 argc -= optind; 321 argv += optind; 322 323 if (qflag && !wflag) 324 usage(); 325 if (xflag && rflag) 326 usage(); 327 /* if ((xflag || rflag) && wflag) 328 usage(); */ 329 /* if (aflag && Mflag) 330 usage(); */ 331 if ((Aflag || Mflag || dflag) && argc == 0 && fn == NULL) 332 aflag = 1; 333 334 if (Aflag) 335 warnfp = stdout; 336 stale = req = 0; 337 338 if (aflag) { 339 print_tree(&name[0], 0, NULL, CTLTYPE_NODE, 1); 340 /* if (argc == 0) */ 341 return (0); 342 } 343 344 if (fn) { 345 FILE *fp; 346 char *l; 347 348 fp = fopen(fn, "r"); 349 if (fp == NULL) { 350 err(1, "%s", fn); 351 } else { 352 nr = 0; 353 while ((l = fparseln(fp, NULL, &nr, NULL, 0)) != NULL) 354 { 355 if (*l) { 356 parse(l); 357 free(l); 358 } 359 } 360 fclose(fp); 361 } 362 return (0); 363 } 364 365 if (argc == 0) 366 usage(); 367 368 while (argc-- > 0) 369 parse(*argv++); 370 371 return (0); 372 } 373 374 /* 375 * ******************************************************************** 376 * how to find someone special to handle the reading (or maybe even 377 * writing) of a particular node 378 * ******************************************************************** 379 */ 380 static const struct handlespec * 381 findhandler(const char *s, int w) 382 { 383 const struct handlespec *p; 384 regex_t re; 385 int i, j, l; 386 char eb[64]; 387 regmatch_t match[1]; 388 389 p = &handlers[0]; 390 l = strlen(s); 391 for (i = 0; p[i].ps_re != NULL; i++) { 392 j = regcomp(&re, p[i].ps_re, REG_EXTENDED); 393 if (j != 0) { 394 regerror(j, &re, eb, sizeof(eb)); 395 errx(1, "regcomp: %s: %s", p[i].ps_re, eb); 396 } 397 j = regexec(&re, s, 1, match, 0); 398 if (j == 0) { 399 if (match[0].rm_so == 0 && match[0].rm_eo == l && 400 (w ? p[i].ps_w : p[i].ps_p) != NULL) 401 return (&p[i]); 402 } 403 else if (j != REG_NOMATCH) { 404 regerror(j, &re, eb, sizeof(eb)); 405 errx(1, "regexec: %s: %s", p[i].ps_re, eb); 406 } 407 } 408 409 return (NULL); 410 } 411 412 /* 413 * after sysctlgetmibinfo is done with the name, we convert all 414 * separators to / and stuff one at the front if it was missing 415 */ 416 static void 417 canonicalize(const char *i, char *o) 418 { 419 const char *t; 420 char p[SYSCTL_NAMELEN + 1]; 421 int l; 422 423 if (i[0] != *sep) { 424 o[0] = '/'; 425 o[1] = '\0'; 426 } 427 else 428 o[0] = '\0'; 429 430 t = i; 431 do { 432 i = t; 433 t = strchr(i, sep[0]); 434 if (t == NULL) 435 strcat(o, i); 436 else { 437 l = t - i; 438 t++; 439 memcpy(p, i, l); 440 p[l] = '\0'; 441 strcat(o, p); 442 strcat(o, "/"); 443 } 444 } while (t != NULL); 445 } 446 447 /* 448 * ******************************************************************** 449 * convert this special number to a special string so we can print the 450 * mib 451 * ******************************************************************** 452 */ 453 static const char * 454 sf(u_int f) 455 { 456 static char s[256]; 457 const char *c; 458 459 s[0] = '\0'; 460 c = ""; 461 462 #define print_flag(_f, _s, _c, _q, _x) \ 463 if (((_f) & (__CONCAT(CTLFLAG_,_x))) == (__CONCAT(CTLFLAG_,_q))) { \ 464 strlcat((_s), (_c), sizeof(_s)); \ 465 strlcat((_s), __STRING(_q), sizeof(_s)); \ 466 (_c) = ","; \ 467 (_f) &= ~(__CONCAT(CTLFLAG_,_x)); \ 468 } 469 print_flag(f, s, c, READONLY, READWRITE); 470 print_flag(f, s, c, READONLY1, READWRITE); 471 print_flag(f, s, c, READONLY2, READWRITE); 472 print_flag(f, s, c, READWRITE, READWRITE); 473 print_flag(f, s, c, ANYWRITE, ANYWRITE); 474 print_flag(f, s, c, PRIVATE, PRIVATE); 475 print_flag(f, s, c, PERMANENT, PERMANENT); 476 print_flag(f, s, c, OWNDATA, OWNDATA); 477 print_flag(f, s, c, IMMEDIATE, IMMEDIATE); 478 print_flag(f, s, c, HEX, HEX); 479 print_flag(f, s, c, ROOT, ROOT); 480 print_flag(f, s, c, ANYNUMBER, ANYNUMBER); 481 print_flag(f, s, c, HIDDEN, HIDDEN); 482 print_flag(f, s, c, ALIAS, ALIAS); 483 #undef print_flag 484 485 if (f) { 486 char foo[9]; 487 snprintf(foo, sizeof(foo), "%x", f); 488 strlcat(s, c, sizeof(s)); 489 strlcat(s, foo, sizeof(s)); 490 } 491 492 return (s); 493 } 494 495 static const char * 496 st(u_int t) 497 { 498 499 switch (t) { 500 case CTLTYPE_NODE: 501 return "NODE"; 502 case CTLTYPE_INT: 503 return "INT"; 504 case CTLTYPE_STRING: 505 return "STRING"; 506 case CTLTYPE_QUAD: 507 return "QUAD"; 508 case CTLTYPE_STRUCT: 509 return "STRUCT"; 510 } 511 512 return "???"; 513 } 514 515 /* 516 * ******************************************************************** 517 * recursively eliminate all data belonging to the given node 518 * ******************************************************************** 519 */ 520 static void 521 purge_tree(struct sysctlnode *rnode) 522 { 523 struct sysctlnode *node; 524 525 if (rnode == NULL || 526 SYSCTL_TYPE(rnode->sysctl_flags) != CTLTYPE_NODE || 527 rnode->sysctl_child == NULL) 528 return; 529 530 for (node = rnode->sysctl_child; 531 node < &rnode->sysctl_child[rnode->sysctl_clen]; 532 node++) 533 purge_tree(node); 534 free(rnode->sysctl_child); 535 rnode->sysctl_csize = 0; 536 rnode->sysctl_clen = 0; 537 rnode->sysctl_child = NULL; 538 539 if (rnode->sysctl_desc == (const char*)-1) 540 rnode->sysctl_desc = NULL; 541 if (rnode->sysctl_desc != NULL) 542 free(__UNCONST(rnode->sysctl_desc)); 543 rnode->sysctl_desc = NULL; 544 } 545 546 /* 547 * ******************************************************************** 548 * print this node and any others underneath it 549 * ******************************************************************** 550 */ 551 static void 552 print_tree(int *name, u_int namelen, struct sysctlnode *pnode, u_int type, 553 int add) 554 { 555 struct sysctlnode *node; 556 int rc, ni; 557 size_t sz; 558 char *sp, *dp, n[20]; 559 const struct handlespec *p; 560 561 sp = &gsname[strlen(gsname)]; 562 dp = &gdname[strlen(gdname)]; 563 564 if (sp != &gsname[0] && dp == &gdname[0]) { 565 /* 566 * aw...shucks. now we must play catch up 567 */ 568 for (ni = 0; ni < namelen; ni++) { 569 (void)snprintf(n, sizeof(n), "%d", name[ni]); 570 if (ni > 0) 571 strncat(gdname, ".", sizeof(gdname)); 572 strncat(gdname, n, sizeof(gdname)); 573 } 574 } 575 576 if (pnode == NULL) 577 pnode = &my_root; 578 else if (add) { 579 snprintf(n, sizeof(n), "%d", pnode->sysctl_num); 580 if (namelen > 1) { 581 strncat(gsname, sep, sizeof(gsname)); 582 strncat(gdname, ".", sizeof(gdname)); 583 } 584 strncat(gsname, pnode->sysctl_name, sizeof(gsname)); 585 strncat(gdname, n, sizeof(gdname)); 586 } 587 588 if (Mflag && pnode != &my_root) { 589 if (nflag) 590 printf("%s: ", gdname); 591 else 592 printf("%s (%s): ", gsname, gdname); 593 printf("CTLTYPE_%s", st(type)); 594 if (type == CTLTYPE_NODE) { 595 if (SYSCTL_FLAGS(pnode->sysctl_flags) & CTLFLAG_ALIAS) 596 printf(", alias %d", 597 pnode->sysctl_alias); 598 else 599 printf(", children %d/%d", 600 pnode->sysctl_clen, 601 pnode->sysctl_csize); 602 } 603 printf(", size %zu", pnode->sysctl_size); 604 printf(", flags 0x%x<%s>", 605 SYSCTL_FLAGS(pnode->sysctl_flags), 606 sf(SYSCTL_FLAGS(pnode->sysctl_flags))); 607 if (pnode->sysctl_func) 608 printf(", func=%p", pnode->sysctl_func); 609 printf(", ver=%d", pnode->sysctl_ver); 610 printf("\n"); 611 if (type != CTLTYPE_NODE) { 612 *sp = *dp = '\0'; 613 return; 614 } 615 } 616 617 if (dflag && pnode != &my_root) { 618 if (Aflag || type != CTLTYPE_NODE) { 619 if (pnode->sysctl_desc == NULL) 620 getdesc1(name, namelen, pnode); 621 if (Aflag || !add || 622 (pnode->sysctl_desc != NULL && 623 pnode->sysctl_desc != (const char*)-1)) { 624 if (!nflag) 625 printf("%s: ", gsname); 626 if (pnode->sysctl_desc == NULL || 627 pnode->sysctl_desc == (const char*)-1) 628 printf("(no description)\n"); 629 else 630 printf("%s\n", pnode->sysctl_desc); 631 } 632 } 633 634 if (type != CTLTYPE_NODE) { 635 *sp = *dp = '\0'; 636 return; 637 } 638 } 639 640 /* 641 * if this is an alias and we added our name, that means we 642 * got here by recursing down into the tree, so skip it. The 643 * only way to print an aliased node is with either -M or by 644 * name specifically. 645 */ 646 if (SYSCTL_FLAGS(pnode->sysctl_flags) & CTLFLAG_ALIAS && add) { 647 *sp = *dp = '\0'; 648 return; 649 } 650 651 canonicalize(gsname, canonname); 652 p = findhandler(canonname, 0); 653 if (type != CTLTYPE_NODE && p != NULL) { 654 (*p->ps_p)(gsname, gdname, NULL, name, namelen, pnode, type, 655 __UNCONST(p->ps_d)); 656 *sp = *dp = '\0'; 657 return; 658 } 659 660 if (type != CTLTYPE_NODE && pnode->sysctl_size == 0) { 661 rc = sysctl(&name[0], namelen, NULL, &sz, NULL, 0); 662 if (rc == -1) { 663 sysctlerror(1); 664 *sp = *dp = '\0'; 665 return; 666 } 667 if (sz == 0) { 668 if ((Aflag || req) && !Mflag) 669 printf("%s: node contains no data\n", gsname); 670 *sp = *dp = '\0'; 671 return; 672 } 673 } 674 else 675 sz = pnode->sysctl_size; 676 677 switch (type) { 678 case CTLTYPE_NODE: { 679 __learn_tree(name, namelen, pnode); 680 node = pnode->sysctl_child; 681 if (node == NULL) { 682 if (dflag) 683 /* do nothing */; 684 else if (p != NULL) 685 (*p->ps_p)(gsname, gdname, NULL, name, namelen, 686 pnode, type, __UNCONST(p->ps_d)); 687 else if ((Aflag || req) && !Mflag) 688 printf("%s: no children\n", gsname); 689 } 690 else { 691 if (dflag) 692 /* 693 * get all descriptions for next level 694 * in one chunk 695 */ 696 getdesc(name, namelen, pnode); 697 req = 0; 698 for (ni = 0; ni < pnode->sysctl_clen; ni++) { 699 name[namelen] = node[ni].sysctl_num; 700 if ((node[ni].sysctl_flags & CTLFLAG_HIDDEN) && 701 !(Aflag || req)) 702 continue; 703 print_tree(name, namelen + 1, &node[ni], 704 SYSCTL_TYPE(node[ni].sysctl_flags), 705 1); 706 } 707 } 708 break; 709 } 710 case CTLTYPE_INT: { 711 int i; 712 rc = sysctl(name, namelen, &i, &sz, NULL, 0); 713 if (rc == -1) { 714 sysctlerror(1); 715 break; 716 } 717 display_number(pnode, gsname, &i, sizeof(i), DISPLAY_VALUE); 718 break; 719 } 720 case CTLTYPE_STRING: { 721 unsigned char buf[1024], *tbuf; 722 tbuf = buf; 723 sz = sizeof(buf); 724 rc = sysctl(&name[0], namelen, tbuf, &sz, NULL, 0); 725 if (rc == -1 && errno == ENOMEM) { 726 tbuf = malloc(sz); 727 if (tbuf == NULL) { 728 sysctlerror(1); 729 break; 730 } 731 rc = sysctl(&name[0], namelen, tbuf, &sz, NULL, 0); 732 } 733 if (rc == -1) 734 sysctlerror(1); 735 else 736 display_string(pnode, gsname, tbuf, sz, DISPLAY_VALUE); 737 if (tbuf != buf) 738 free(tbuf); 739 break; 740 } 741 case CTLTYPE_QUAD: { 742 u_quad_t q; 743 sz = sizeof(q); 744 rc = sysctl(&name[0], namelen, &q, &sz, NULL, 0); 745 if (rc == -1) { 746 sysctlerror(1); 747 break; 748 } 749 display_number(pnode, gsname, &q, sizeof(q), DISPLAY_VALUE); 750 break; 751 } 752 case CTLTYPE_STRUCT: { 753 /* 754 * we shouldn't actually get here, but if we 755 * do, would it be nice to have *something* to 756 * do other than completely ignore the 757 * request. 758 */ 759 unsigned char *d; 760 if ((d = malloc(sz)) == NULL) { 761 fprintf(warnfp, "%s: !malloc failed!\n", gsname); 762 break; 763 } 764 rc = sysctl(&name[0], namelen, d, &sz, NULL, 0); 765 if (rc == -1) { 766 sysctlerror(1); 767 break; 768 } 769 display_struct(pnode, gsname, d, sz, DISPLAY_VALUE); 770 free(d); 771 break; 772 } 773 default: 774 /* should i print an error here? */ 775 break; 776 } 777 778 *sp = *dp = '\0'; 779 } 780 781 /* 782 * ******************************************************************** 783 * parse a request, possibly determining that it's a create or destroy 784 * request 785 * ******************************************************************** 786 */ 787 static void 788 parse(char *l) 789 { 790 struct sysctlnode *node; 791 const struct handlespec *w; 792 int name[CTL_MAXNAME], dodesc = 0; 793 u_int namelen, type; 794 char *key, *value, *dot; 795 size_t sz; 796 797 req = 1; 798 key = l; 799 value = strchr(l, '='); 800 if (value != NULL) 801 *value++ = '\0'; 802 803 if ((dot = strpbrk(key, "./")) == NULL) 804 sep[0] = '.'; 805 else 806 sep[0] = dot[0]; 807 sep[1] = '\0'; 808 809 while (key[0] == sep[0] && key[1] == sep[0]) { 810 if (value != NULL) 811 value[-1] = '='; 812 if (strncmp(key + 2, "create", 6) == 0 && 813 (key[8] == '=' || key[8] == sep[0])) 814 parse_create(key + 8 + (key[8] == '=' ? 1 : 0)); 815 else if (strncmp(key + 2, "destroy", 7) == 0 && 816 (key[9] == '=' || key[9] == sep[0])) 817 parse_destroy(key + 9 + (key[9] == '=' ? 1 : 0)); 818 else if (strncmp(key + 2, "describe", 8) == 0 && 819 (key[10] == '=' || key[10] == sep[0])) { 820 key += 10 + (key[10] == '='); 821 if ((value = strchr(key, '=')) != NULL) 822 parse_describe(key); 823 else { 824 if (!dflag) 825 dodesc = 1; 826 break; 827 } 828 } 829 else 830 sysctlperror("unable to parse '%s'\n", key); 831 return; 832 } 833 834 if (stale) { 835 purge_tree(&my_root); 836 stale = 0; 837 } 838 node = &my_root; 839 namelen = CTL_MAXNAME; 840 sz = sizeof(gsname); 841 842 if (sysctlgetmibinfo(key, &name[0], &namelen, gsname, &sz, &node, 843 SYSCTL_VERSION) == -1) { 844 sysctlparseerror(namelen, l); 845 EXIT(1); 846 } 847 848 type = SYSCTL_TYPE(node->sysctl_flags); 849 850 if (value == NULL) { 851 if (dodesc) 852 dflag = 1; 853 print_tree(&name[0], namelen, node, type, 0); 854 if (dodesc) 855 dflag = 0; 856 gsname[0] = '\0'; 857 return; 858 } 859 860 if (fn) 861 trim_whitespace(value, 1); 862 863 if (!wflag) { 864 sysctlperror("Must specify -w to set variables\n"); 865 exit(1); 866 } 867 868 canonicalize(gsname, canonname); 869 if (type != CTLTYPE_NODE && (w = findhandler(canonname, 1)) != NULL) { 870 (*w->ps_w)(gsname, gdname, value, name, namelen, node, type, 871 __UNCONST(w->ps_d)); 872 gsname[0] = '\0'; 873 return; 874 } 875 876 switch (type) { 877 case CTLTYPE_NODE: 878 /* 879 * XXX old behavior is to print. should we error instead? 880 */ 881 print_tree(&name[0], namelen, node, CTLTYPE_NODE, 1); 882 break; 883 case CTLTYPE_INT: 884 write_number(&name[0], namelen, node, value); 885 break; 886 case CTLTYPE_STRING: 887 write_string(&name[0], namelen, node, value); 888 break; 889 case CTLTYPE_QUAD: 890 write_number(&name[0], namelen, node, value); 891 break; 892 case CTLTYPE_STRUCT: 893 /* 894 * XXX old behavior is to print. should we error instead? 895 */ 896 /* fprintf(warnfp, "you can't write to %s\n", gsname); */ 897 print_tree(&name[0], namelen, node, type, 0); 898 break; 899 } 900 } 901 902 /* 903 904 //create=foo.bar.whatever..., 905 [type=(int|quad|string|struct|node),] 906 [size=###,] 907 [n=###,] 908 [flags=(iohxparw12),] 909 [addr=0x####,|symbol=...|value=...] 910 911 size is optional for some types. type must be set before anything 912 else. nodes can have [r12whp], but nothing else applies. if no 913 size or type is given, node is asserted. writeable is the default, 914 with [r12w] being read-only, writeable below securelevel 1, 915 writeable below securelevel 2, and unconditionally writeable 916 respectively. if you specify addr, it is assumed to be the name of 917 a kernel symbol, if value, CTLFLAG_OWNDATA will be asserted for 918 strings, CTLFLAG_IMMEDIATE for ints and u_quad_ts. you cannot 919 specify both value and addr. 920 921 */ 922 923 static void 924 parse_create(char *l) 925 { 926 struct sysctlnode node; 927 size_t sz; 928 char *nname, *key, *value, *data, *addr, *c, *t; 929 int name[CTL_MAXNAME], i, rc, method, flags, rw; 930 u_int namelen, type; 931 u_quad_t uq; 932 quad_t q; 933 934 if (!wflag) { 935 sysctlperror("Must specify -w to create nodes\n"); 936 exit(1); 937 } 938 939 /* 940 * these are the pieces that make up the description of a new 941 * node 942 */ 943 memset(&node, 0, sizeof(node)); 944 node.sysctl_num = CTL_CREATE; /* any number is fine */ 945 flags = 0; 946 rw = -1; 947 type = 0; 948 sz = 0; 949 data = addr = NULL; 950 memset(name, 0, sizeof(name)); 951 namelen = 0; 952 method = 0; 953 954 /* 955 * misc stuff used when constructing 956 */ 957 i = 0; 958 uq = 0; 959 key = NULL; 960 value = NULL; 961 962 /* 963 * the name of the thing we're trying to create is first, so 964 * pick it off. 965 */ 966 nname = l; 967 if ((c = strchr(nname, ',')) != NULL) 968 *c++ = '\0'; 969 970 while (c != NULL) { 971 972 /* 973 * pull off the next "key=value" pair 974 */ 975 key = c; 976 if ((t = strchr(key, '=')) != NULL) { 977 *t++ = '\0'; 978 value = t; 979 } 980 else 981 value = NULL; 982 983 /* 984 * if the "key" is "value", then that eats the rest of 985 * the string, so we're done, otherwise bite it off at 986 * the next comma. 987 */ 988 if (strcmp(key, "value") == 0) { 989 c = NULL; 990 data = value; 991 break; 992 } 993 else { 994 if ((c = strchr(value, ',')) != NULL) 995 *c++ = '\0'; 996 } 997 998 /* 999 * note that we (mostly) let the invoker of sysctl(8) 1000 * play rampant here and depend on the kernel to tell 1001 * them that they were wrong. well...within reason. 1002 * we later check the various parameters against each 1003 * other to make sure it makes some sort of sense. 1004 */ 1005 if (strcmp(key, "addr") == 0) { 1006 /* 1007 * we can't check these two. only the kernel 1008 * can tell us when it fails to find the name 1009 * (or if the address is invalid). 1010 */ 1011 if (method != 0) { 1012 sysctlperror( 1013 "%s: already have %s for new node\n", 1014 nname, 1015 method == CTL_CREATE ? "addr" : "symbol"); 1016 EXIT(1); 1017 } 1018 errno = 0; 1019 addr = (void*)strtoul(value, &t, 0); 1020 if (t == value || *t != '\0' || errno != 0) { 1021 sysctlperror( 1022 "%s: '%s' is not a valid address\n", 1023 nname, value); 1024 EXIT(1); 1025 } 1026 method = CTL_CREATE; 1027 } 1028 else if (strcmp(key, "symbol") == 0) { 1029 if (method != 0) { 1030 sysctlperror( 1031 "%s: already have %s for new node\n", 1032 nname, 1033 method == CTL_CREATE ? "addr" : "symbol"); 1034 EXIT(1); 1035 } 1036 addr = value; 1037 method = CTL_CREATESYM; 1038 } 1039 else if (strcmp(key, "type") == 0) { 1040 if (strcmp(value, "node") == 0) 1041 type = CTLTYPE_NODE; 1042 else if (strcmp(value, "int") == 0) { 1043 sz = sizeof(int); 1044 type = CTLTYPE_INT; 1045 } 1046 else if (strcmp(value, "string") == 0) 1047 type = CTLTYPE_STRING; 1048 else if (strcmp(value, "quad") == 0) { 1049 sz = sizeof(u_quad_t); 1050 type = CTLTYPE_QUAD; 1051 } 1052 else if (strcmp(value, "struct") == 0) 1053 type = CTLTYPE_STRUCT; 1054 else { 1055 sysctlperror( 1056 "%s: '%s' is not a valid type\n", 1057 nname, value); 1058 EXIT(1); 1059 } 1060 } 1061 else if (strcmp(key, "size") == 0) { 1062 errno = 0; 1063 /* 1064 * yes, i know size_t is not an unsigned long, 1065 * but we can all agree that it ought to be, 1066 * right? 1067 */ 1068 sz = strtoul(value, &t, 0); 1069 if (t == value || *t != '\0' || errno != 0) { 1070 sysctlperror( 1071 "%s: '%s' is not a valid size\n", 1072 nname, value); 1073 EXIT(1); 1074 } 1075 } 1076 else if (strcmp(key, "n") == 0) { 1077 errno = 0; 1078 q = strtoll(value, &t, 0); 1079 if (t == value || *t != '\0' || errno != 0 || 1080 q < INT_MIN || q > UINT_MAX) { 1081 sysctlperror( 1082 "%s: '%s' is not a valid mib number\n", 1083 nname, value); 1084 EXIT(1); 1085 } 1086 node.sysctl_num = (int)q; 1087 } 1088 else if (strcmp(key, "flags") == 0) { 1089 t = value; 1090 while (*t != '\0') { 1091 switch (*t) { 1092 case 'a': 1093 flags |= CTLFLAG_ANYWRITE; 1094 break; 1095 case 'h': 1096 flags |= CTLFLAG_HIDDEN; 1097 break; 1098 case 'i': 1099 flags |= CTLFLAG_IMMEDIATE; 1100 break; 1101 case 'o': 1102 flags |= CTLFLAG_OWNDATA; 1103 break; 1104 case 'p': 1105 flags |= CTLFLAG_PRIVATE; 1106 break; 1107 case 'x': 1108 flags |= CTLFLAG_HEX; 1109 break; 1110 1111 case 'r': 1112 rw = CTLFLAG_READONLY; 1113 break; 1114 case '1': 1115 rw = CTLFLAG_READONLY1; 1116 break; 1117 case '2': 1118 rw = CTLFLAG_READONLY2; 1119 break; 1120 case 'w': 1121 rw = CTLFLAG_READWRITE; 1122 break; 1123 default: 1124 sysctlperror( 1125 "%s: '%c' is not a valid flag\n", 1126 nname, *t); 1127 EXIT(1); 1128 } 1129 t++; 1130 } 1131 } 1132 else { 1133 sysctlperror("%s: unrecognized keyword '%s'\n", 1134 nname, key); 1135 EXIT(1); 1136 } 1137 } 1138 1139 /* 1140 * now that we've finished parsing the given string, fill in 1141 * anything they didn't specify 1142 */ 1143 if (type == 0) 1144 type = CTLTYPE_NODE; 1145 1146 /* 1147 * the "data" can be interpreted various ways depending on the 1148 * type of node we're creating, as can the size 1149 */ 1150 if (data != NULL) { 1151 if (addr != NULL) { 1152 sysctlperror( 1153 "%s: cannot specify both value and " 1154 "address\n", nname); 1155 EXIT(1); 1156 } 1157 1158 switch (type) { 1159 case CTLTYPE_INT: 1160 errno = 0; 1161 q = strtoll(data, &t, 0); 1162 if (t == data || *t != '\0' || errno != 0 || 1163 q < INT_MIN || q > UINT_MAX) { 1164 sysctlperror( 1165 "%s: '%s' is not a valid integer\n", 1166 nname, value); 1167 EXIT(1); 1168 } 1169 i = (int)q; 1170 if (!(flags & CTLFLAG_OWNDATA)) { 1171 flags |= CTLFLAG_IMMEDIATE; 1172 node.sysctl_idata = i; 1173 } 1174 else 1175 node.sysctl_data = &i; 1176 if (sz == 0) 1177 sz = sizeof(int); 1178 break; 1179 case CTLTYPE_STRING: 1180 flags |= CTLFLAG_OWNDATA; 1181 node.sysctl_data = data; 1182 if (sz == 0) 1183 sz = strlen(data) + 1; 1184 else if (sz < strlen(data) + 1) { 1185 sysctlperror("%s: ignoring size=%zu for " 1186 "string node, too small for given " 1187 "value\n", nname, sz); 1188 sz = strlen(data) + 1; 1189 } 1190 break; 1191 case CTLTYPE_QUAD: 1192 errno = 0; 1193 uq = strtouq(data, &t, 0); 1194 if (t == data || *t != '\0' || errno != 0) { 1195 sysctlperror( 1196 "%s: '%s' is not a valid quad\n", 1197 nname, value); 1198 EXIT(1); 1199 } 1200 if (!(flags & CTLFLAG_OWNDATA)) { 1201 flags |= CTLFLAG_IMMEDIATE; 1202 node.sysctl_qdata = uq; 1203 } 1204 else 1205 node.sysctl_data = &uq; 1206 if (sz == 0) 1207 sz = sizeof(u_quad_t); 1208 break; 1209 case CTLTYPE_STRUCT: 1210 sysctlperror("%s: struct not initializable\n", 1211 nname); 1212 EXIT(1); 1213 } 1214 1215 /* 1216 * these methods have all provided local starting 1217 * values that the kernel must copy in 1218 */ 1219 } 1220 1221 /* 1222 * hmm...no data, but we have an address of data. that's 1223 * fine. 1224 */ 1225 else if (addr != 0) 1226 node.sysctl_data = (void*)addr; 1227 1228 /* 1229 * no data and no address? well...okay. we might be able to 1230 * manage that. 1231 */ 1232 else if (type != CTLTYPE_NODE) { 1233 if (sz == 0) { 1234 sysctlperror( 1235 "%s: need a size or a starting value\n", 1236 nname); 1237 EXIT(1); 1238 } 1239 if (!(flags & CTLFLAG_IMMEDIATE)) 1240 flags |= CTLFLAG_OWNDATA; 1241 } 1242 1243 /* 1244 * now we do a few sanity checks on the description we've 1245 * assembled 1246 */ 1247 if ((flags & CTLFLAG_IMMEDIATE) && 1248 (type == CTLTYPE_STRING || type == CTLTYPE_STRUCT)) { 1249 sysctlperror("%s: cannot make an immediate %s\n", 1250 nname, 1251 (type == CTLTYPE_STRING) ? "string" : "struct"); 1252 EXIT(1); 1253 } 1254 if (type == CTLTYPE_NODE && node.sysctl_data != NULL) { 1255 sysctlperror("%s: nodes do not have data\n", nname); 1256 EXIT(1); 1257 } 1258 1259 /* 1260 * some types must have a particular size 1261 */ 1262 if (sz != 0) { 1263 if ((type == CTLTYPE_INT && sz != sizeof(int)) || 1264 (type == CTLTYPE_QUAD && sz != sizeof(u_quad_t)) || 1265 (type == CTLTYPE_NODE && sz != 0)) { 1266 sysctlperror("%s: wrong size for type\n", nname); 1267 EXIT(1); 1268 } 1269 } 1270 else if (type == CTLTYPE_STRUCT) { 1271 sysctlperror("%s: struct must have size\n", nname); 1272 EXIT(1); 1273 } 1274 1275 /* 1276 * now...if no one said anything yet, we default nodes or 1277 * any type that owns data being writeable, and everything 1278 * else being readonly. 1279 */ 1280 if (rw == -1) { 1281 if (type == CTLTYPE_NODE || 1282 (flags & (CTLFLAG_OWNDATA|CTLFLAG_IMMEDIATE))) 1283 rw = CTLFLAG_READWRITE; 1284 else 1285 rw = CTLFLAG_READONLY; 1286 } 1287 1288 /* 1289 * if a kernel address was specified, that can't be made 1290 * writeable by us. 1291 if (rw != CTLFLAG_READONLY && addr) { 1292 sysctlperror("%s: kernel data can only be readable\n", nname); 1293 EXIT(1); 1294 } 1295 */ 1296 1297 /* 1298 * what separator were they using in the full name of the new 1299 * node? 1300 */ 1301 if ((t = strpbrk(nname, "./")) == NULL) 1302 sep[0] = '.'; 1303 else 1304 sep[0] = t[0]; 1305 sep[1] = '\0'; 1306 1307 /* 1308 * put it all together, now. t'ain't much, is it? 1309 */ 1310 node.sysctl_flags = SYSCTL_VERSION|flags|rw|type; 1311 node.sysctl_size = sz; 1312 t = strrchr(nname, sep[0]); 1313 if (t != NULL) 1314 strlcpy(node.sysctl_name, t + 1, sizeof(node.sysctl_name)); 1315 else 1316 strlcpy(node.sysctl_name, nname, sizeof(node.sysctl_name)); 1317 if (t == nname) 1318 t = NULL; 1319 1320 /* 1321 * if this is a new top-level node, then we don't need to find 1322 * the mib for its parent 1323 */ 1324 if (t == NULL) { 1325 namelen = 0; 1326 gsname[0] = '\0'; 1327 } 1328 1329 /* 1330 * on the other hand, if it's not a top-level node... 1331 */ 1332 else { 1333 namelen = sizeof(name) / sizeof(name[0]); 1334 sz = sizeof(gsname); 1335 *t = '\0'; 1336 rc = sysctlgetmibinfo(nname, &name[0], &namelen, 1337 gsname, &sz, NULL, SYSCTL_VERSION); 1338 *t = sep[0]; 1339 if (rc == -1) { 1340 sysctlparseerror(namelen, nname); 1341 EXIT(1); 1342 } 1343 } 1344 1345 /* 1346 * yes, a new node is being created 1347 */ 1348 if (method != 0) 1349 name[namelen++] = method; 1350 else 1351 name[namelen++] = CTL_CREATE; 1352 1353 sz = sizeof(node); 1354 rc = sysctl(&name[0], namelen, &node, &sz, &node, sizeof(node)); 1355 1356 if (rc == -1) { 1357 sysctlperror("%s: CTL_CREATE failed: %s\n", 1358 nname, strerror(errno)); 1359 EXIT(1); 1360 } 1361 else { 1362 if (!qflag && !nflag) 1363 printf("%s(%s): (created)\n", nname, st(type)); 1364 stale = 1; 1365 } 1366 } 1367 1368 static void 1369 parse_destroy(char *l) 1370 { 1371 struct sysctlnode node; 1372 size_t sz; 1373 int name[CTL_MAXNAME], rc; 1374 u_int namelen; 1375 1376 if (!wflag) { 1377 sysctlperror("Must specify -w to destroy nodes\n"); 1378 exit(1); 1379 } 1380 1381 memset(name, 0, sizeof(name)); 1382 namelen = sizeof(name) / sizeof(name[0]); 1383 sz = sizeof(gsname); 1384 rc = sysctlgetmibinfo(l, &name[0], &namelen, gsname, &sz, NULL, 1385 SYSCTL_VERSION); 1386 if (rc == -1) { 1387 sysctlparseerror(namelen, l); 1388 EXIT(1); 1389 } 1390 1391 memset(&node, 0, sizeof(node)); 1392 node.sysctl_flags = SYSCTL_VERSION; 1393 node.sysctl_num = name[namelen - 1]; 1394 name[namelen - 1] = CTL_DESTROY; 1395 1396 sz = sizeof(node); 1397 rc = sysctl(&name[0], namelen, &node, &sz, &node, sizeof(node)); 1398 1399 if (rc == -1) { 1400 sysctlperror("%s: CTL_DESTROY failed: %s\n", 1401 l, strerror(errno)); 1402 EXIT(1); 1403 } 1404 else { 1405 if (!qflag && !nflag) 1406 printf("%s(%s): (destroyed)\n", gsname, 1407 st(SYSCTL_TYPE(node.sysctl_flags))); 1408 stale = 1; 1409 } 1410 } 1411 1412 static void 1413 parse_describe(char *l) 1414 { 1415 struct sysctlnode newdesc; 1416 char buf[1024], *value; 1417 struct sysctldesc *d = (void*)&buf[0]; 1418 int name[CTL_MAXNAME], rc; 1419 u_int namelen; 1420 size_t sz; 1421 1422 if (!wflag) { 1423 sysctlperror("Must specify -w to set descriptions\n"); 1424 exit(1); 1425 } 1426 1427 value = strchr(l, '='); 1428 *value++ = '\0'; 1429 1430 memset(name, 0, sizeof(name)); 1431 namelen = sizeof(name) / sizeof(name[0]); 1432 sz = sizeof(gsname); 1433 rc = sysctlgetmibinfo(l, &name[0], &namelen, gsname, &sz, NULL, 1434 SYSCTL_VERSION); 1435 if (rc == -1) { 1436 sysctlparseerror(namelen, l); 1437 EXIT(1); 1438 } 1439 1440 sz = sizeof(buf); 1441 memset(&newdesc, 0, sizeof(newdesc)); 1442 newdesc.sysctl_flags = SYSCTL_VERSION|CTLFLAG_OWNDESC; 1443 newdesc.sysctl_num = name[namelen - 1]; 1444 newdesc.sysctl_desc = value; 1445 name[namelen - 1] = CTL_DESCRIBE; 1446 rc = sysctl(name, namelen, d, &sz, &newdesc, sizeof(newdesc)); 1447 if (rc == -1) 1448 sysctlperror("%s: CTL_DESCRIBE failed: %s\n", 1449 gsname, strerror(errno)); 1450 else if (d->descr_len == 1) 1451 sysctlperror("%s: description not set\n", gsname); 1452 else if (!qflag && !nflag) 1453 printf("%s: %s\n", gsname, d->descr_str); 1454 } 1455 1456 /* 1457 * ******************************************************************** 1458 * when things go wrong... 1459 * ******************************************************************** 1460 */ 1461 static void 1462 usage(void) 1463 { 1464 const char *progname = getprogname(); 1465 1466 (void)fprintf(stderr, 1467 "usage:\t%s %s\n" 1468 "\t%s %s\n" 1469 "\t%s %s\n" 1470 "\t%s %s\n" 1471 "\t%s %s\n" 1472 "\t%s %s\n", 1473 progname, "[-dne] [-x[x]|-r] variable ...", 1474 progname, "[-ne] [-q] -w variable=value ...", 1475 progname, "[-dne] -a", 1476 progname, "[-dne] -A", 1477 progname, "[-ne] -M", 1478 progname, "[-dne] [-q] -f file"); 1479 exit(1); 1480 } 1481 1482 static void 1483 getdesc1(int *name, u_int namelen, struct sysctlnode *pnode) 1484 { 1485 struct sysctlnode node; 1486 char buf[1024], *desc; 1487 struct sysctldesc *d = (void*)buf; 1488 size_t sz = sizeof(buf); 1489 int rc; 1490 1491 memset(&node, 0, sizeof(node)); 1492 node.sysctl_flags = SYSCTL_VERSION; 1493 node.sysctl_num = name[namelen - 1]; 1494 name[namelen - 1] = CTL_DESCRIBE; 1495 rc = sysctl(name, namelen, d, &sz, &node, sizeof(node)); 1496 1497 if (rc == -1 || 1498 d->descr_len == 1 || 1499 d->descr_num != pnode->sysctl_num || 1500 d->descr_ver != pnode->sysctl_ver) 1501 desc = (char *)-1; 1502 else 1503 desc = malloc(d->descr_len); 1504 1505 if (desc == NULL) 1506 desc = (char *)-1; 1507 if (desc != (char *)-1) 1508 memcpy(desc, &d->descr_str[0], d->descr_len); 1509 name[namelen - 1] = node.sysctl_num; 1510 if (pnode->sysctl_desc != NULL && 1511 pnode->sysctl_desc != (const char *)-1) 1512 free(__UNCONST(pnode->sysctl_desc)); 1513 pnode->sysctl_desc = desc; 1514 } 1515 1516 static void 1517 getdesc(int *name, u_int namelen, struct sysctlnode *pnode) 1518 { 1519 struct sysctlnode *node = pnode->sysctl_child; 1520 struct sysctldesc *d, *p, *plim; 1521 char *desc; 1522 size_t sz; 1523 int rc, i; 1524 1525 sz = 128 * pnode->sysctl_clen; 1526 name[namelen] = CTL_DESCRIBE; 1527 1528 /* 1529 * attempt *twice* to get the description chunk. if two tries 1530 * doesn't work, give up. 1531 */ 1532 i = 0; 1533 do { 1534 d = malloc(sz); 1535 if (d == NULL) 1536 return; 1537 rc = sysctl(name, namelen + 1, d, &sz, NULL, 0); 1538 if (rc == -1) { 1539 free(d); 1540 d = NULL; 1541 if (i == 0 && errno == ENOMEM) 1542 i = 1; 1543 else 1544 return; 1545 } 1546 } while (d == NULL); 1547 1548 /* 1549 * hokey nested loop here, giving O(n**2) behavior, but should 1550 * suffice for now 1551 */ 1552 plim = /*LINTED ptr cast*/(struct sysctldesc *)((char*)d + sz); 1553 for (i = 0; i < pnode->sysctl_clen; i++) { 1554 node = &pnode->sysctl_child[i]; 1555 for (p = d; p < plim; p = NEXT_DESCR(p)) 1556 if (node->sysctl_num == p->descr_num) 1557 break; 1558 if (p < plim && node->sysctl_ver == p->descr_ver) { 1559 /* 1560 * match found, attempt to attach description 1561 */ 1562 if (p->descr_len == 1) 1563 desc = NULL; 1564 else 1565 desc = malloc(p->descr_len); 1566 if (desc == NULL) 1567 desc = (char *)-1; 1568 else 1569 memcpy(desc, &p->descr_str[0], p->descr_len); 1570 node->sysctl_desc = desc; 1571 } 1572 } 1573 1574 free(d); 1575 } 1576 1577 static void 1578 trim_whitespace(char *s, int dir) 1579 { 1580 char *i, *o; 1581 1582 i = o = s; 1583 if (dir & 1) 1584 while (isspace((unsigned char)*i)) 1585 i++; 1586 while ((*o++ = *i++) != '\0'); 1587 o -= 2; /* already past nul, skip back to before it */ 1588 if (dir & 2) 1589 while (o > s && isspace((unsigned char)*o)) 1590 *o-- = '\0'; 1591 } 1592 1593 void 1594 sysctlerror(int soft) 1595 { 1596 if (soft) { 1597 switch (errno) { 1598 case ENOENT: 1599 case ENOPROTOOPT: 1600 case ENOTDIR: 1601 case EINVAL: 1602 case EOPNOTSUPP: 1603 case EPROTONOSUPPORT: 1604 if (Aflag || req) 1605 sysctlperror("%s: the value is not available\n", 1606 gsname); 1607 return; 1608 } 1609 } 1610 1611 sysctlperror("%s: sysctl() failed with %s\n", 1612 gsname, strerror(errno)); 1613 if (!soft) 1614 EXIT(1); 1615 } 1616 1617 void 1618 sysctlparseerror(u_int namelen, const char *pname) 1619 { 1620 1621 sysctlperror("%s level name '%s' in '%s' is invalid\n", 1622 lname[namelen], gsname, pname); 1623 } 1624 1625 static void 1626 sysctlperror(const char *fmt, ...) 1627 { 1628 va_list ap; 1629 1630 (void)fprintf(warnfp, "%s: ", getprogname()); 1631 if (fn) 1632 (void)fprintf(warnfp, "%s#%zu: ", fn, nr); 1633 va_start(ap, fmt); 1634 (void)vfprintf(warnfp, fmt, ap); 1635 va_end(ap); 1636 } 1637 1638 1639 /* 1640 * ******************************************************************** 1641 * how to write to a "simple" node 1642 * ******************************************************************** 1643 */ 1644 static void 1645 write_number(int *name, u_int namelen, struct sysctlnode *node, char *value) 1646 { 1647 u_int ii, io; 1648 u_quad_t qi, qo; 1649 size_t si, so; 1650 int rc; 1651 void *i, *o; 1652 char *t; 1653 1654 if (fn) 1655 trim_whitespace(value, 3); 1656 1657 si = so = 0; 1658 i = o = NULL; 1659 errno = 0; 1660 qi = strtouq(value, &t, 0); 1661 if (qi == UQUAD_MAX && errno == ERANGE) { 1662 sysctlperror("%s: %s\n", value, strerror(errno)); 1663 EXIT(1); 1664 } 1665 if (t == value || *t != '\0') { 1666 sysctlperror("%s: not a number\n", value); 1667 EXIT(1); 1668 } 1669 1670 switch (SYSCTL_TYPE(node->sysctl_flags)) { 1671 case CTLTYPE_INT: 1672 ii = (u_int)qi; 1673 io = (u_int)(qi >> 32); 1674 if (io != (u_int)-1 && io != 0) { 1675 sysctlperror("%s: %s\n", value, strerror(ERANGE)); 1676 EXIT(1); 1677 } 1678 o = &io; 1679 so = sizeof(io); 1680 i = ⅈ 1681 si = sizeof(ii); 1682 break; 1683 case CTLTYPE_QUAD: 1684 o = &qo; 1685 so = sizeof(qo); 1686 i = &qi; 1687 si = sizeof(qi); 1688 break; 1689 } 1690 1691 rc = sysctl(name, namelen, o, &so, i, si); 1692 if (rc == -1) { 1693 sysctlerror(0); 1694 return; 1695 } 1696 1697 switch (SYSCTL_TYPE(node->sysctl_flags)) { 1698 case CTLTYPE_INT: 1699 display_number(node, gsname, &io, sizeof(io), DISPLAY_OLD); 1700 display_number(node, gsname, &ii, sizeof(ii), DISPLAY_NEW); 1701 break; 1702 case CTLTYPE_QUAD: 1703 display_number(node, gsname, &qo, sizeof(qo), DISPLAY_OLD); 1704 display_number(node, gsname, &qi, sizeof(qi), DISPLAY_NEW); 1705 break; 1706 } 1707 } 1708 1709 static void 1710 write_string(int *name, u_int namelen, struct sysctlnode *node, char *value) 1711 { 1712 char *i, *o; 1713 size_t si, so; 1714 int rc; 1715 1716 i = value; 1717 si = strlen(i) + 1; 1718 so = node->sysctl_size; 1719 if (si > so && so != 0) { 1720 sysctlperror("%s: string too long\n", value); 1721 EXIT(1); 1722 } 1723 o = malloc(so); 1724 if (o == NULL) { 1725 sysctlperror("%s: !malloc failed!\n", gsname); 1726 exit(1); 1727 } 1728 1729 rc = sysctl(name, namelen, o, &so, i, si); 1730 if (rc == -1) { 1731 sysctlerror(0); 1732 return; 1733 } 1734 1735 display_string(node, gsname, o, so, DISPLAY_OLD); 1736 display_string(node, gsname, i, si, DISPLAY_NEW); 1737 free(o); 1738 } 1739 1740 /* 1741 * ******************************************************************** 1742 * simple ways to print stuff consistently 1743 * ******************************************************************** 1744 */ 1745 static void 1746 display_number(const struct sysctlnode *node, const char *name, 1747 const void *data, size_t sz, int n) 1748 { 1749 u_quad_t q; 1750 int i; 1751 1752 if (qflag) 1753 return; 1754 if ((nflag || rflag) && (n == DISPLAY_OLD)) 1755 return; 1756 1757 if (rflag && n != DISPLAY_OLD) { 1758 fwrite(data, sz, 1, stdout); 1759 return; 1760 } 1761 1762 if (!nflag) { 1763 if (n == DISPLAY_VALUE) 1764 printf("%s%s", name, eq); 1765 else if (n == DISPLAY_OLD) 1766 printf("%s: ", name); 1767 } 1768 1769 if (xflag > 1) { 1770 if (n != DISPLAY_NEW) 1771 printf("\n"); 1772 hex_dump(data, sz); 1773 return; 1774 } 1775 1776 switch (SYSCTL_TYPE(node->sysctl_flags)) { 1777 case CTLTYPE_INT: 1778 memcpy(&i, data, sz); 1779 if (xflag) 1780 printf("0x%0*x", (int)sz * 2, i); 1781 else if (node->sysctl_flags & CTLFLAG_HEX) 1782 printf("%#x", i); 1783 else 1784 printf("%d", i); 1785 break; 1786 case CTLTYPE_QUAD: 1787 memcpy(&q, data, sz); 1788 if (xflag) 1789 printf("0x%0*" PRIx64, (int)sz * 2, q); 1790 else if (node->sysctl_flags & CTLFLAG_HEX) 1791 printf("%#" PRIx64, q); 1792 else 1793 printf("%" PRIu64, q); 1794 break; 1795 } 1796 1797 if (n == DISPLAY_OLD) 1798 printf(" -> "); 1799 else 1800 printf("\n"); 1801 } 1802 1803 static void 1804 display_string(const struct sysctlnode *node, const char *name, 1805 const void *data, size_t sz, int n) 1806 { 1807 const unsigned char *buf = data; 1808 int ni; 1809 1810 if (qflag) 1811 return; 1812 if ((nflag || rflag) && (n == DISPLAY_OLD)) 1813 return; 1814 1815 if (rflag && n != DISPLAY_OLD) { 1816 fwrite(data, sz, 1, stdout); 1817 return; 1818 } 1819 1820 if (!nflag) { 1821 if (n == DISPLAY_VALUE) 1822 printf("%s%s", name, eq); 1823 else if (n == DISPLAY_OLD) 1824 printf("%s: ", name); 1825 } 1826 1827 if (xflag > 1) { 1828 if (n != DISPLAY_NEW) 1829 printf("\n"); 1830 hex_dump(data, sz); 1831 return; 1832 } 1833 1834 if (xflag || node->sysctl_flags & CTLFLAG_HEX) { 1835 for (ni = 0; ni < (int)sz; ni++) { 1836 if (xflag) 1837 printf("%02x", buf[ni]); 1838 if (buf[ni] == '\0') 1839 break; 1840 if (!xflag) 1841 printf("\\x%2.2x", buf[ni]); 1842 } 1843 } 1844 else 1845 printf("%.*s", (int)sz, buf); 1846 1847 if (n == DISPLAY_OLD) 1848 printf(" -> "); 1849 else 1850 printf("\n"); 1851 } 1852 1853 /*ARGSUSED*/ 1854 static void 1855 display_struct(const struct sysctlnode *node, const char *name, 1856 const void *data, size_t sz, int n) 1857 { 1858 const unsigned char *buf = data; 1859 int ni; 1860 size_t more; 1861 1862 if (qflag) 1863 return; 1864 if (!(xflag || rflag)) { 1865 if (Aflag || req) 1866 sysctlperror( 1867 "%s: this type is unknown to this program\n", 1868 gsname); 1869 return; 1870 } 1871 if ((nflag || rflag) && (n == DISPLAY_OLD)) 1872 return; 1873 1874 if (rflag && n != DISPLAY_OLD) { 1875 fwrite(data, sz, 1, stdout); 1876 return; 1877 } 1878 1879 if (!nflag) { 1880 if (n == DISPLAY_VALUE) 1881 printf("%s%s", name, eq); 1882 else if (n == DISPLAY_OLD) 1883 printf("%s: ", name); 1884 } 1885 1886 if (xflag > 1) { 1887 if (n != DISPLAY_NEW) 1888 printf("\n"); 1889 hex_dump(data, sz); 1890 return; 1891 } 1892 1893 if (sz > 16) { 1894 more = sz - 16; 1895 sz = 16; 1896 } 1897 else 1898 more = 0; 1899 for (ni = 0; ni < (int)sz; ni++) 1900 printf("%02x", buf[ni]); 1901 if (more) 1902 printf("...(%zu more bytes)", more); 1903 printf("\n"); 1904 } 1905 1906 static void 1907 hex_dump(const unsigned char *buf, size_t len) 1908 { 1909 int i, j; 1910 char line[80], tmp[12]; 1911 1912 memset(line, ' ', sizeof(line)); 1913 for (i = 0, j = 15; i < len; i++) { 1914 j = i % 16; 1915 /* reset line */ 1916 if (j == 0) { 1917 line[58] = '|'; 1918 line[77] = '|'; 1919 line[78] = 0; 1920 snprintf(tmp, sizeof(tmp), "%07d", i); 1921 memcpy(&line[0], tmp, 7); 1922 } 1923 /* copy out hex version of byte */ 1924 snprintf(tmp, sizeof(tmp), "%02x", buf[i]); 1925 memcpy(&line[9 + j * 3], tmp, 2); 1926 /* copy out plain version of byte */ 1927 line[60 + j] = (isprint(buf[i])) ? buf[i] : '.'; 1928 /* print a full line and erase it */ 1929 if (j == 15) { 1930 printf("%s\n", line); 1931 memset(line, ' ', sizeof(line)); 1932 } 1933 } 1934 if (line[0] != ' ') 1935 printf("%s\n", line); 1936 printf("%07zu bytes\n", len); 1937 } 1938 1939 /* 1940 * ******************************************************************** 1941 * functions that handle particular nodes 1942 * ******************************************************************** 1943 */ 1944 /*ARGSUSED*/ 1945 static void 1946 printother(HANDLER_ARGS) 1947 { 1948 int rc; 1949 void *p; 1950 size_t sz1, sz2; 1951 1952 if (!(Aflag || req) || Mflag) 1953 return; 1954 1955 /* 1956 * okay...you asked for it, so let's give it a go 1957 */ 1958 while (type != CTLTYPE_NODE && (xflag || rflag)) { 1959 rc = sysctl(name, namelen, NULL, &sz1, NULL, 0); 1960 if (rc == -1 || sz1 == 0) 1961 break; 1962 p = malloc(sz1); 1963 if (p == NULL) 1964 break; 1965 sz2 = sz1; 1966 rc = sysctl(name, namelen, p, &sz2, NULL, 0); 1967 if (rc == -1 || sz1 != sz2) { 1968 free(p); 1969 break; 1970 } 1971 display_struct(pnode, gsname, p, sz1, DISPLAY_VALUE); 1972 free(p); 1973 return; 1974 } 1975 1976 /* 1977 * that didn't work...do we have a specific message for this 1978 * thing? 1979 */ 1980 if (v != NULL) { 1981 sysctlperror("%s: use '%s' to view this information\n", 1982 gsname, (const char *)v); 1983 return; 1984 } 1985 1986 /* 1987 * hmm...i wonder if we have any generic hints? 1988 */ 1989 switch (name[0]) { 1990 case CTL_NET: 1991 sysctlperror("%s: use 'netstat' to view this information\n", 1992 sname); 1993 break; 1994 case CTL_DEBUG: 1995 sysctlperror("%s: missing 'options DEBUG' from kernel?\n", 1996 sname); 1997 break; 1998 case CTL_DDB: 1999 sysctlperror("%s: missing 'options DDB' from kernel?\n", 2000 sname); 2001 break; 2002 case CTL_VENDOR: 2003 sysctlperror("%s: no vendor extensions installed\n", 2004 sname); 2005 break; 2006 } 2007 } 2008 2009 /*ARGSUSED*/ 2010 static void 2011 kern_clockrate(HANDLER_ARGS) 2012 { 2013 struct clockinfo clkinfo; 2014 size_t sz; 2015 int rc; 2016 2017 sz = sizeof(clkinfo); 2018 rc = sysctl(name, namelen, &clkinfo, &sz, NULL, 0); 2019 if (rc == -1) { 2020 sysctlerror(1); 2021 return; 2022 } 2023 if (sz != sizeof(clkinfo)) 2024 errx(1, "%s: !returned size wrong!", sname); 2025 2026 if (xflag || rflag) { 2027 display_struct(pnode, sname, &clkinfo, sz, 2028 DISPLAY_VALUE); 2029 return; 2030 } 2031 else if (!nflag) 2032 printf("%s: ", sname); 2033 printf("tick = %d, tickadj = %d, hz = %d, profhz = %d, stathz = %d\n", 2034 clkinfo.tick, clkinfo.tickadj, 2035 clkinfo.hz, clkinfo.profhz, clkinfo.stathz); 2036 } 2037 2038 /*ARGSUSED*/ 2039 static void 2040 kern_boottime(HANDLER_ARGS) 2041 { 2042 struct timeval timeval; 2043 time_t boottime; 2044 size_t sz; 2045 int rc; 2046 2047 sz = sizeof(timeval); 2048 rc = sysctl(name, namelen, &timeval, &sz, NULL, 0); 2049 if (rc == -1) { 2050 sysctlerror(1); 2051 return; 2052 } 2053 if (sz != sizeof(timeval)) 2054 errx(1, "%s: !returned size wrong!", sname); 2055 2056 boottime = timeval.tv_sec; 2057 if (xflag || rflag) 2058 display_struct(pnode, sname, &timeval, sz, 2059 DISPLAY_VALUE); 2060 else if (!nflag) 2061 /* ctime() provides the \n */ 2062 printf("%s%s%s", sname, eq, ctime(&boottime)); 2063 else if (nflag == 1) 2064 printf("%ld\n", (long)boottime); 2065 else 2066 printf("%ld.%06ld\n", (long)timeval.tv_sec, 2067 (long)timeval.tv_usec); 2068 } 2069 2070 /*ARGSUSED*/ 2071 static void 2072 kern_consdev(HANDLER_ARGS) 2073 { 2074 dev_t cons; 2075 size_t sz; 2076 int rc; 2077 2078 sz = sizeof(cons); 2079 rc = sysctl(name, namelen, &cons, &sz, NULL, 0); 2080 if (rc == -1) { 2081 sysctlerror(1); 2082 return; 2083 } 2084 if (sz != sizeof(cons)) 2085 errx(1, "%s: !returned size wrong!", sname); 2086 2087 if (xflag || rflag) 2088 display_struct(pnode, sname, &cons, sz, 2089 DISPLAY_VALUE); 2090 else { 2091 if (!nflag) 2092 printf("%s%s", sname, eq); 2093 if (nflag < 2 && (sname = devname(cons, S_IFCHR)) != NULL) 2094 printf("%s\n", sname); 2095 else 2096 printf("0x%x\n", cons); 2097 } 2098 } 2099 2100 /*ARGSUSED*/ 2101 static void 2102 kern_cp_time(HANDLER_ARGS) 2103 { 2104 u_int64_t *cp_time; 2105 size_t sz, osz; 2106 int rc, i, n; 2107 char s[sizeof("kern.cp_time.nnnnnn")]; 2108 const char *tname; 2109 2110 /* 2111 * three things to do here. 2112 * case 1: get sum (no Aflag and namelen == 2) 2113 * case 2: get specific processor (namelen == 3) 2114 * case 3: get all processors (Aflag and namelen == 2) 2115 */ 2116 2117 if (namelen == 2 && Aflag) { 2118 sz = sizeof(n); 2119 rc = sysctlbyname("hw.ncpu", &n, &sz, NULL, 0); 2120 if (rc != 0) 2121 return; /* XXX print an error, eh? */ 2122 n++; /* Add on space for the sum. */ 2123 sz = n * sizeof(u_int64_t) * CPUSTATES; 2124 } 2125 else { 2126 n = -1; /* Just print one data set. */ 2127 sz = sizeof(u_int64_t) * CPUSTATES; 2128 } 2129 2130 cp_time = malloc(sz); 2131 if (cp_time == NULL) { 2132 sysctlerror(1); 2133 return; 2134 } 2135 2136 osz = sz; 2137 rc = sysctl(name, namelen, cp_time + (n != -1) * CPUSTATES, &osz, 2138 NULL, 0); 2139 2140 if (rc == -1) { 2141 sysctlerror(1); 2142 free(cp_time); 2143 return; 2144 } 2145 2146 /* 2147 * Check, but account for space we'll occupy with the sum. 2148 */ 2149 if (osz != sz - (n != -1) * CPUSTATES * sizeof(u_int64_t)) 2150 errx(1, "%s: !returned size wrong!", sname); 2151 2152 /* 2153 * Compute the actual sum. Two calls would be easier (we 2154 * could just call ourselves recursively above), but the 2155 * numbers wouldn't add up. 2156 */ 2157 if (n != -1) { 2158 memset(cp_time, 0, sizeof(u_int64_t) * CPUSTATES); 2159 for (i = 1; i < n; i++) { 2160 cp_time[CP_USER] += cp_time[i * CPUSTATES + CP_USER]; 2161 cp_time[CP_NICE] += cp_time[i * CPUSTATES + CP_NICE]; 2162 cp_time[CP_SYS] += cp_time[i * CPUSTATES + CP_SYS]; 2163 cp_time[CP_INTR] += cp_time[i * CPUSTATES + CP_INTR]; 2164 cp_time[CP_IDLE] += cp_time[i * CPUSTATES + CP_IDLE]; 2165 } 2166 } 2167 2168 tname = sname; 2169 for (i = 0; n == -1 || i < n; i++) { 2170 if (i > 0) { 2171 (void)snprintf(s, sizeof(s), "%s%s%d", sname, sep, 2172 i - 1); 2173 tname = s; 2174 } 2175 if (xflag || rflag) 2176 display_struct(pnode, tname, cp_time + (i * CPUSTATES), 2177 sizeof(u_int64_t) * CPUSTATES, 2178 DISPLAY_VALUE); 2179 else { 2180 if (!nflag) 2181 printf("%s: ", tname); 2182 printf("user = %" PRIu64 2183 ", nice = %" PRIu64 2184 ", sys = %" PRIu64 2185 ", intr = %" PRIu64 2186 ", idle = %" PRIu64 2187 "\n", 2188 cp_time[i * CPUSTATES + CP_USER], 2189 cp_time[i * CPUSTATES + CP_NICE], 2190 cp_time[i * CPUSTATES + CP_SYS], 2191 cp_time[i * CPUSTATES + CP_INTR], 2192 cp_time[i * CPUSTATES + CP_IDLE]); 2193 } 2194 /* 2195 * Just printing the one node. 2196 */ 2197 if (n == -1) 2198 break; 2199 } 2200 2201 free(cp_time); 2202 } 2203 2204 /*ARGSUSED*/ 2205 static void 2206 kern_cp_id(HANDLER_ARGS) 2207 { 2208 u_int64_t *cp_id; 2209 size_t sz, osz; 2210 int rc, i, n; 2211 char s[sizeof("kern.cp_id.nnnnnn")]; 2212 const char *tname; 2213 struct sysctlnode node = *pnode; 2214 2215 /* 2216 * three things to do here. 2217 * case 1: print a specific cpu id (namelen == 3) 2218 * case 2: print all cpu ids separately (Aflag set) 2219 * case 3: print all cpu ids on one line 2220 */ 2221 2222 if (namelen == 2) { 2223 sz = sizeof(n); 2224 rc = sysctlbyname("hw.ncpu", &n, &sz, NULL, 0); 2225 if (rc != 0) 2226 return; /* XXX print an error, eh? */ 2227 sz = n * sizeof(u_int64_t); 2228 } 2229 else { 2230 n = -1; /* Just print one cpu id. */ 2231 sz = sizeof(u_int64_t); 2232 } 2233 2234 cp_id = malloc(sz); 2235 if (cp_id == NULL) { 2236 sysctlerror(1); 2237 return; 2238 } 2239 2240 osz = sz; 2241 rc = sysctl(name, namelen, cp_id, &osz, NULL, 0); 2242 if (rc == -1) { 2243 sysctlerror(1); 2244 free(cp_id); 2245 return; 2246 } 2247 2248 /* 2249 * Check that we got back what we asked for. 2250 */ 2251 if (osz != sz) 2252 errx(1, "%s: !returned size wrong!", sname); 2253 2254 /* pretend for output purposes */ 2255 node.sysctl_flags = SYSCTL_FLAGS(pnode->sysctl_flags) | 2256 SYSCTL_TYPE(CTLTYPE_QUAD); 2257 2258 tname = sname; 2259 if (namelen == 3) 2260 display_number(&node, tname, cp_id, 2261 sizeof(u_int64_t), 2262 DISPLAY_VALUE); 2263 else if (Aflag) { 2264 for (i = 0; i < n; i++) 2265 (void)snprintf(s, sizeof(s), "%s%s%d", sname, sep, i); 2266 tname = s; 2267 display_number(&node, tname, &cp_id[i], 2268 sizeof(u_int64_t), 2269 DISPLAY_VALUE); 2270 } 2271 else { 2272 if (xflag || rflag) 2273 display_struct(pnode, tname, cp_id, sz, DISPLAY_VALUE); 2274 else { 2275 if (!nflag) 2276 printf("%s: ", tname); 2277 for (i = 0; i < n; i++) { 2278 if (i) 2279 printf(", "); 2280 printf("%d = %" PRIu64, i, cp_id[i]); 2281 } 2282 printf("\n"); 2283 } 2284 } 2285 2286 free(cp_id); 2287 } 2288 2289 /*ARGSUSED*/ 2290 static void 2291 vm_loadavg(HANDLER_ARGS) 2292 { 2293 struct loadavg loadavg; 2294 size_t sz; 2295 int rc; 2296 2297 sz = sizeof(loadavg); 2298 rc = sysctl(name, namelen, &loadavg, &sz, NULL, 0); 2299 if (rc == -1) { 2300 sysctlerror(1); 2301 return; 2302 } 2303 if (sz != sizeof(loadavg)) 2304 errx(1, "%s: !returned size wrong!", sname); 2305 2306 if (xflag || rflag) { 2307 display_struct(pnode, sname, &loadavg, sz, 2308 DISPLAY_VALUE); 2309 return; 2310 } 2311 if (!nflag) 2312 printf("%s: ", sname); 2313 printf("%.2f %.2f %.2f\n", 2314 (double) loadavg.ldavg[0] / loadavg.fscale, 2315 (double) loadavg.ldavg[1] / loadavg.fscale, 2316 (double) loadavg.ldavg[2] / loadavg.fscale); 2317 } 2318 2319 /*ARGSUSED*/ 2320 static void 2321 proc_limit(HANDLER_ARGS) 2322 { 2323 u_quad_t olim, *newp, nlim; 2324 size_t osz, nsz; 2325 char *t; 2326 int rc; 2327 2328 if (fn) 2329 trim_whitespace(value, 3); 2330 2331 osz = sizeof(olim); 2332 if (value != NULL) { 2333 nsz = sizeof(nlim); 2334 newp = &nlim; 2335 if (strcmp(value, "unlimited") == 0) 2336 nlim = RLIM_INFINITY; 2337 else { 2338 errno = 0; 2339 nlim = strtouq(value, &t, 0); 2340 if (t == value || *t != '\0' || errno != 0) { 2341 sysctlperror("%s: '%s' is not a valid limit\n", 2342 sname, value); 2343 EXIT(1); 2344 } 2345 } 2346 } 2347 else { 2348 nsz = 0; 2349 newp = NULL; 2350 } 2351 2352 rc = sysctl(name, namelen, &olim, &osz, newp, nsz); 2353 if (rc == -1) { 2354 sysctlerror(newp == NULL); 2355 return; 2356 } 2357 2358 if (newp && qflag) 2359 return; 2360 2361 if (rflag || xflag || olim != RLIM_INFINITY) 2362 display_number(pnode, sname, &olim, sizeof(olim), 2363 newp ? DISPLAY_OLD : DISPLAY_VALUE); 2364 else 2365 display_string(pnode, sname, "unlimited", 10, 2366 newp ? DISPLAY_OLD : DISPLAY_VALUE); 2367 2368 if (newp) { 2369 if (rflag || xflag || nlim != RLIM_INFINITY) 2370 display_number(pnode, sname, &nlim, sizeof(nlim), 2371 DISPLAY_NEW); 2372 else 2373 display_string(pnode, sname, "unlimited", 10, 2374 DISPLAY_NEW); 2375 } 2376 } 2377 2378 #ifdef CPU_DISKINFO 2379 /*ARGSUSED*/ 2380 static void 2381 machdep_diskinfo(HANDLER_ARGS) 2382 { 2383 struct disklist *dl; 2384 struct biosdisk_info *bi; 2385 struct nativedisk_info *ni; 2386 int rc; 2387 size_t sz; 2388 uint i, b, lim; 2389 2390 rc = sysctl(name, namelen, NULL, &sz, NULL, 0); 2391 if (rc == -1) { 2392 sysctlerror(1); 2393 return; 2394 } 2395 dl = malloc(sz); 2396 if (dl == NULL) { 2397 sysctlerror(1); 2398 return; 2399 } 2400 rc = sysctl(name, namelen, dl, &sz, NULL, 0); 2401 if (rc == -1) { 2402 sysctlerror(1); 2403 return; 2404 } 2405 2406 if (!nflag) 2407 printf("%s: ", sname); 2408 lim = dl->dl_nbiosdisks; 2409 if (lim > MAX_BIOSDISKS) 2410 lim = MAX_BIOSDISKS; 2411 for (bi = dl->dl_biosdisks, i = 0; i < lim; bi++, i++) 2412 printf("%x:%" PRIu64 "(%d/%d/%d),%x ", 2413 bi->bi_dev, bi->bi_lbasecs, 2414 bi->bi_cyl, bi->bi_head, bi->bi_sec, 2415 bi->bi_flags); 2416 lim = dl->dl_nnativedisks; 2417 ni = dl->dl_nativedisks; 2418 bi = dl->dl_biosdisks; 2419 /* LINTED -- pointer casts are tedious */ 2420 if ((char *)&ni[lim] != (char *)dl + sz) { 2421 sysctlperror("%s: size mismatch\n", gsname); 2422 return; 2423 } 2424 for (i = 0; i < lim; ni++, i++) { 2425 char t = ':'; 2426 printf(" %.*s", (int)sizeof ni->ni_devname, 2427 ni->ni_devname); 2428 for (b = 0; b < ni->ni_nmatches; t = ',', b++) 2429 printf("%c%x", t, 2430 bi[ni->ni_biosmatches[b]].bi_dev); 2431 } 2432 printf("\n"); 2433 } 2434 #endif /* CPU_DISKINFO */ 2435 2436 /*ARGSUSED*/ 2437 static void 2438 mode_bits(HANDLER_ARGS) 2439 { 2440 char buf[11], outbuf[100]; 2441 int o, m, *newp, rc; 2442 size_t osz, nsz; 2443 mode_t om, mm; 2444 2445 if (fn) 2446 trim_whitespace(value, 3); 2447 2448 newp = NULL; 2449 osz = sizeof(o); 2450 if (value != NULL) { 2451 void *foo; 2452 int tt; 2453 size_t ttsz = sizeof(tt); 2454 mode_t old_umask; 2455 2456 nsz = sizeof(m); 2457 newp = &m; 2458 errno = 0; 2459 rc = sysctl(name, namelen, &tt, &ttsz, NULL, 0); 2460 if (rc == -1) { 2461 sysctlperror("%s: failed query\n", sname); 2462 return; 2463 } 2464 2465 old_umask = umask(0); 2466 foo = setmode(value); 2467 umask(old_umask); 2468 if (foo == NULL) { 2469 sysctlperror("%s: '%s' is an invalid mode\n", sname, 2470 value); 2471 EXIT(1); 2472 } 2473 old_umask = umask(0); 2474 m = getmode(foo, (mode_t)tt); 2475 umask(old_umask); 2476 if (errno) { 2477 sysctlperror("%s: '%s' is an invalid mode\n", sname, 2478 value); 2479 EXIT(1); 2480 } 2481 } 2482 else { 2483 nsz = 0; 2484 newp = NULL; 2485 } 2486 2487 rc = sysctl(name, namelen, &o, &osz, newp, nsz); 2488 if (rc == -1) { 2489 sysctlerror(newp == NULL); 2490 return; 2491 } 2492 2493 if (newp && qflag) 2494 return; 2495 2496 om = (mode_t)o; 2497 mm = (mode_t)m; 2498 2499 if (rflag || xflag) 2500 display_number(pnode, sname, &o, sizeof(o), 2501 newp ? DISPLAY_OLD : DISPLAY_VALUE); 2502 else { 2503 memset(buf, 0, sizeof(buf)); 2504 strmode(om, buf); 2505 buf[10] = '\0'; 2506 rc = snprintf(outbuf, sizeof(outbuf), "%04o (%s)", om, buf + 1); 2507 display_string(pnode, sname, outbuf, rc, newp ? DISPLAY_OLD : DISPLAY_VALUE); 2508 } 2509 2510 if (newp) { 2511 if (rflag || xflag) 2512 display_number(pnode, sname, &m, sizeof(m), 2513 DISPLAY_NEW); 2514 else { 2515 memset(buf, 0, sizeof(buf)); 2516 strmode(mm, buf); 2517 buf[10] = '\0'; 2518 rc = snprintf(outbuf, sizeof(outbuf), "%04o (%s)", mm, buf + 1); 2519 display_string(pnode, sname, outbuf, rc, DISPLAY_NEW); 2520 } 2521 } 2522 } 2523
Indexes created Sun Sep 21 20:09:37 GMT 2025