1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/param.h> 33 #include <sys/time.h> 34 #include <sys/resource.h> 35 #include <sys/stat.h> 36 #ifdef JAIL 37 #include <sys/jail.h> 38 #endif 39 #include <sys/sysctl.h> 40 #include <sys/vmmeter.h> 41 #include <dev/evdev/input.h> 42 43 #ifdef __amd64__ 44 #include <sys/efi.h> 45 #include <machine/metadata.h> 46 #endif 47 48 #if defined(__amd64__) || defined(__i386__) 49 #include <machine/pc/bios.h> 50 #endif 51 52 #include <assert.h> 53 #include <ctype.h> 54 #include <err.h> 55 #include <errno.h> 56 #include <inttypes.h> 57 #ifdef JAIL 58 #include <jail.h> 59 #endif 60 #include <locale.h> 61 #include <stdbool.h> 62 #include <stdio.h> 63 #include <stdlib.h> 64 #include <string.h> 65 #include <sysexits.h> 66 #include <unistd.h> 67 68 #ifdef JAIL 69 static const char *jailname; 70 #endif 71 static const char *conffile; 72 73 static int aflag, bflag, Bflag, dflag, eflag, hflag, iflag; 74 static int Nflag, nflag, oflag, qflag, tflag, Tflag, Wflag, xflag; 75 static bool Fflag, Jflag, lflag, Vflag; 76 77 static void attach_jail(void); 78 static int oidfmt(int *, int, char *, u_int *); 79 static int parsefile(FILE *); 80 static int parse(const char *, int); 81 static int show_var(int *, int, bool); 82 static int sysctl_all(int *, int); 83 static int name2oid(const char *, int *); 84 85 static int strIKtoi(const char *, char **, const char *); 86 87 static int ctl_sign[CTLTYPE+1] = { 88 [CTLTYPE_INT] = 1, 89 [CTLTYPE_LONG] = 1, 90 [CTLTYPE_S8] = 1, 91 [CTLTYPE_S16] = 1, 92 [CTLTYPE_S32] = 1, 93 [CTLTYPE_S64] = 1, 94 }; 95 96 static int ctl_size[CTLTYPE+1] = { 97 [CTLTYPE_INT] = sizeof(int), 98 [CTLTYPE_UINT] = sizeof(u_int), 99 [CTLTYPE_LONG] = sizeof(long), 100 [CTLTYPE_ULONG] = sizeof(u_long), 101 [CTLTYPE_S8] = sizeof(int8_t), 102 [CTLTYPE_S16] = sizeof(int16_t), 103 [CTLTYPE_S32] = sizeof(int32_t), 104 [CTLTYPE_S64] = sizeof(int64_t), 105 [CTLTYPE_U8] = sizeof(uint8_t), 106 [CTLTYPE_U16] = sizeof(uint16_t), 107 [CTLTYPE_U32] = sizeof(uint32_t), 108 [CTLTYPE_U64] = sizeof(uint64_t), 109 }; 110 111 static const char *ctl_typename[CTLTYPE+1] = { 112 [CTLTYPE_INT] = "integer", 113 [CTLTYPE_UINT] = "unsigned integer", 114 [CTLTYPE_LONG] = "long integer", 115 [CTLTYPE_ULONG] = "unsigned long", 116 [CTLTYPE_U8] = "uint8_t", 117 [CTLTYPE_U16] = "uint16_t", 118 [CTLTYPE_U32] = "uint32_t", 119 [CTLTYPE_U64] = "uint64_t", 120 [CTLTYPE_S8] = "int8_t", 121 [CTLTYPE_S16] = "int16_t", 122 [CTLTYPE_S32] = "int32_t", 123 [CTLTYPE_S64] = "int64_t", 124 [CTLTYPE_NODE] = "node", 125 [CTLTYPE_STRING] = "string", 126 [CTLTYPE_OPAQUE] = "opaque", 127 }; 128 129 static void 130 usage(void) 131 { 132 133 (void)fprintf(stderr, "%s\n%s\n", 134 "usage: sysctl [-j jail] [-bdeFhiJlNnoqTtVWx] [ -B <bufsize> ] [-f filename] name[=value] ...", 135 " sysctl [-j jail] [-bdeFhJlNnoqTtVWx] [ -B <bufsize> ] -a"); 136 exit(1); 137 } 138 139 int 140 main(int argc, char **argv) 141 { 142 int ch; 143 int warncount = 0; 144 FILE *file = NULL; 145 146 setlocale(LC_NUMERIC, ""); 147 setbuf(stdout,0); 148 setbuf(stderr,0); 149 150 while ((ch = getopt(argc, argv, "AaB:bdeFf:hiJj:lNnoqTtVWwXx")) != -1) { 151 switch (ch) { 152 case 'A': 153 /* compatibility */ 154 aflag = oflag = 1; 155 break; 156 case 'a': 157 aflag = 1; 158 break; 159 case 'B': 160 Bflag = strtol(optarg, NULL, 0); 161 break; 162 case 'b': 163 bflag = 1; 164 break; 165 case 'd': 166 dflag = 1; 167 break; 168 case 'e': 169 eflag = 1; 170 break; 171 case 'F': 172 Fflag = true; 173 break; 174 case 'f': 175 conffile = optarg; 176 break; 177 case 'h': 178 hflag = 1; 179 break; 180 case 'i': 181 iflag = 1; 182 break; 183 case 'J': 184 Jflag = true; 185 break; 186 case 'j': 187 #ifdef JAIL 188 if ((jailname = optarg) == NULL) 189 usage(); 190 #else 191 errx(1, "not built with jail support"); 192 #endif 193 break; 194 case 'l': 195 lflag = true; 196 break; 197 case 'N': 198 Nflag = 1; 199 break; 200 case 'n': 201 nflag = 1; 202 break; 203 case 'o': 204 oflag = 1; 205 break; 206 case 'q': 207 qflag = 1; 208 break; 209 case 'T': 210 Tflag = 1; 211 break; 212 case 't': 213 tflag = 1; 214 break; 215 case 'V': 216 Vflag = true; 217 break; 218 case 'W': 219 Wflag = 1; 220 break; 221 case 'w': 222 /* compatibility */ 223 /* ignored */ 224 break; 225 case 'X': 226 /* compatibility */ 227 aflag = xflag = 1; 228 break; 229 case 'x': 230 xflag = 1; 231 break; 232 default: 233 usage(); 234 } 235 } 236 argc -= optind; 237 argv += optind; 238 239 /* Nflag is name only and doesn't make sense to combine with these */ 240 /* TODO: few other combinations do not make sense but come back later */ 241 if (Nflag && (lflag || nflag)) 242 usage(); 243 if (aflag && argc == 0) { 244 attach_jail(); 245 exit(sysctl_all(NULL, 0)); 246 } 247 if (argc == 0 && conffile == NULL) 248 usage(); 249 250 if (conffile != NULL) { 251 file = fopen(conffile, "r"); 252 if (file == NULL) 253 err(EX_NOINPUT, "%s", conffile); 254 } 255 attach_jail(); 256 if (file != NULL) { 257 warncount += parsefile(file); 258 fclose(file); 259 } 260 261 while (argc-- > 0) 262 warncount += parse(*argv++, 0); 263 264 return (warncount); 265 } 266 267 static void 268 attach_jail(void) 269 { 270 #ifdef JAIL 271 int jid; 272 273 if (jailname == NULL) 274 return; 275 276 jid = jail_getid(jailname); 277 if (jid == -1) 278 errx(1, "jail not found"); 279 if (jail_attach(jid) != 0) 280 errx(1, "cannot attach to jail"); 281 #endif 282 } 283 284 /* 285 * Parse a single numeric value, append it to 'newbuf', and update 286 * 'newsize'. Returns true if the value was parsed and false if the 287 * value was invalid. Non-numeric types (strings) are handled 288 * directly in parse(). 289 */ 290 static bool 291 parse_numeric(const char *newvalstr, const char *fmt, u_int kind, 292 void **newbufp, size_t *newsizep) 293 { 294 void *newbuf; 295 const void *newval; 296 int8_t i8val; 297 uint8_t u8val; 298 int16_t i16val; 299 uint16_t u16val; 300 int32_t i32val; 301 uint32_t u32val; 302 int intval; 303 unsigned int uintval; 304 long longval; 305 unsigned long ulongval; 306 int64_t i64val; 307 uint64_t u64val; 308 size_t valsize; 309 char *endptr = NULL; 310 311 errno = 0; 312 313 switch (kind & CTLTYPE) { 314 case CTLTYPE_INT: 315 if (strncmp(fmt, "IK", 2) == 0) 316 intval = strIKtoi(newvalstr, &endptr, fmt); 317 else 318 intval = (int)strtol(newvalstr, &endptr, 0); 319 newval = &intval; 320 valsize = sizeof(intval); 321 break; 322 case CTLTYPE_UINT: 323 uintval = (int) strtoul(newvalstr, &endptr, 0); 324 newval = &uintval; 325 valsize = sizeof(uintval); 326 break; 327 case CTLTYPE_LONG: 328 longval = strtol(newvalstr, &endptr, 0); 329 newval = &longval; 330 valsize = sizeof(longval); 331 break; 332 case CTLTYPE_ULONG: 333 ulongval = strtoul(newvalstr, &endptr, 0); 334 newval = &ulongval; 335 valsize = sizeof(ulongval); 336 break; 337 case CTLTYPE_S8: 338 i8val = (int8_t)strtol(newvalstr, &endptr, 0); 339 newval = &i8val; 340 valsize = sizeof(i8val); 341 break; 342 case CTLTYPE_S16: 343 i16val = (int16_t)strtol(newvalstr, &endptr, 0); 344 newval = &i16val; 345 valsize = sizeof(i16val); 346 break; 347 case CTLTYPE_S32: 348 i32val = (int32_t)strtol(newvalstr, &endptr, 0); 349 newval = &i32val; 350 valsize = sizeof(i32val); 351 break; 352 case CTLTYPE_S64: 353 i64val = strtoimax(newvalstr, &endptr, 0); 354 newval = &i64val; 355 valsize = sizeof(i64val); 356 break; 357 case CTLTYPE_U8: 358 u8val = (uint8_t)strtoul(newvalstr, &endptr, 0); 359 newval = &u8val; 360 valsize = sizeof(u8val); 361 break; 362 case CTLTYPE_U16: 363 u16val = (uint16_t)strtoul(newvalstr, &endptr, 0); 364 newval = &u16val; 365 valsize = sizeof(u16val); 366 break; 367 case CTLTYPE_U32: 368 u32val = (uint32_t)strtoul(newvalstr, &endptr, 0); 369 newval = &u32val; 370 valsize = sizeof(u32val); 371 break; 372 case CTLTYPE_U64: 373 u64val = strtoumax(newvalstr, &endptr, 0); 374 newval = &u64val; 375 valsize = sizeof(u64val); 376 break; 377 default: 378 /* NOTREACHED */ 379 abort(); 380 } 381 382 if (errno != 0 || endptr == newvalstr || 383 (endptr != NULL && *endptr != '\0')) 384 return (false); 385 386 newbuf = realloc(*newbufp, *newsizep + valsize); 387 if (newbuf == NULL) 388 err(1, "out of memory"); 389 memcpy((char *)newbuf + *newsizep, newval, valsize); 390 *newbufp = newbuf; 391 *newsizep += valsize; 392 393 return (true); 394 } 395 396 /* 397 * Parse a name into a MIB entry. 398 * Lookup and print out the MIB entry if it exists. 399 * Set a new value if requested. 400 */ 401 static int 402 parse(const char *string, int lineno) 403 { 404 int len, i, j, save_errno; 405 const void *newval; 406 char *newvalstr = NULL; 407 void *newbuf; 408 size_t newsize = Bflag; 409 int mib[CTL_MAXNAME]; 410 char *cp, *bufp, *buf, fmt[BUFSIZ], line[BUFSIZ]; 411 u_int kind; 412 413 if (lineno) 414 snprintf(line, sizeof(line), " at line %d", lineno); 415 else 416 line[0] = '\0'; 417 418 /* 419 * Split the string into name and value. 420 * 421 * Either = or : may be used as the delimiter. 422 * Whitespace surrounding the delimiter is trimmed. 423 * Quotes around the value are stripped. 424 */ 425 cp = buf = strdup(string); 426 bufp = strsep(&cp, "=:"); 427 if (cp != NULL) { 428 /* Tflag just lists tunables, do not allow assignment */ 429 if (Tflag || Wflag) { 430 warnx("Can't set variables when using -T or -W"); 431 usage(); 432 } 433 /* Trim whitespace before the value. */ 434 while (isspace(*cp)) 435 cp++; 436 /* Strip a pair of " or ' if any. */ 437 switch (*cp) { 438 case '\"': 439 case '\'': 440 if (cp[strlen(cp) - 1] == *cp) 441 cp[strlen(cp) - 1] = '\0'; 442 cp++; 443 } 444 newvalstr = cp; 445 newsize = strlen(cp); 446 } 447 /* Trim whitespace after the name. */ 448 cp = bufp + strlen(bufp) - 1; 449 while (cp >= bufp && isspace((int)*cp)) { 450 *cp = '\0'; 451 cp--; 452 } 453 454 /* 455 * Check the name is a useable oid. 456 */ 457 len = name2oid(bufp, mib); 458 if (len < 0) { 459 if (iflag) { 460 free(buf); 461 return (0); 462 } 463 if (!qflag) { 464 if (errno == ENOENT) { 465 warnx("unknown oid '%s'%s", bufp, line); 466 } else { 467 warn("unknown oid '%s'%s", bufp, line); 468 } 469 } 470 free(buf); 471 return (1); 472 } 473 474 if (oidfmt(mib, len, fmt, &kind)) { 475 warn("couldn't find format of oid '%s'%s", bufp, line); 476 free(buf); 477 if (iflag) 478 return (1); 479 else 480 exit(1); 481 } 482 483 /* 484 * We have a useable oid to work with. If there is no value given, 485 * show the node and its children. Otherwise, set the new value. 486 */ 487 if (newvalstr == NULL || dflag) { 488 free(buf); 489 if ((kind & CTLTYPE) == CTLTYPE_NODE) { 490 if (dflag) { 491 i = show_var(mib, len, false); 492 if (!i && !bflag) 493 putchar('\n'); 494 } 495 sysctl_all(mib, len); 496 } else { 497 i = show_var(mib, len, false); 498 if (!i && !bflag) 499 putchar('\n'); 500 } 501 return (0); 502 } 503 504 /* 505 * We have a new value to set. Check its validity and parse if numeric. 506 */ 507 if ((kind & CTLTYPE) == CTLTYPE_NODE) { 508 warnx("oid '%s' isn't a leaf node%s", bufp, line); 509 free(buf); 510 return (1); 511 } 512 513 if (!(kind & CTLFLAG_WR)) { 514 if (kind & CTLFLAG_TUN) { 515 warnx("oid '%s' is a read only tunable%s", bufp, line); 516 warnx("Tunable values are set in /boot/loader.conf"); 517 } else 518 warnx("oid '%s' is read only%s", bufp, line); 519 free(buf); 520 return (1); 521 } 522 523 switch (kind & CTLTYPE) { 524 case CTLTYPE_INT: 525 case CTLTYPE_UINT: 526 case CTLTYPE_LONG: 527 case CTLTYPE_ULONG: 528 case CTLTYPE_S8: 529 case CTLTYPE_S16: 530 case CTLTYPE_S32: 531 case CTLTYPE_S64: 532 case CTLTYPE_U8: 533 case CTLTYPE_U16: 534 case CTLTYPE_U32: 535 case CTLTYPE_U64: 536 if (strlen(newvalstr) == 0) { 537 warnx("empty numeric value"); 538 free(buf); 539 return (1); 540 } 541 /* FALLTHROUGH */ 542 case CTLTYPE_STRING: 543 break; 544 default: 545 warnx("oid '%s' is type %d, cannot set that%s", 546 bufp, kind & CTLTYPE, line); 547 free(buf); 548 return (1); 549 } 550 551 newbuf = NULL; 552 553 switch (kind & CTLTYPE) { 554 case CTLTYPE_STRING: 555 newval = newvalstr; 556 break; 557 default: 558 newsize = 0; 559 while ((cp = strsep(&newvalstr, " ,")) != NULL) { 560 if (*cp == '\0') 561 continue; 562 if (!parse_numeric(cp, fmt, kind, &newbuf, &newsize)) { 563 warnx("invalid %s '%s'%s", 564 ctl_typename[kind & CTLTYPE], cp, line); 565 free(newbuf); 566 free(buf); 567 return (1); 568 } 569 } 570 newval = newbuf; 571 break; 572 } 573 574 /* 575 * Show the current value, then set and show the new value. 576 */ 577 i = show_var(mib, len, false); 578 if (sysctl(mib, len, 0, 0, newval, newsize) == -1) { 579 save_errno = errno; 580 free(newbuf); 581 free(buf); 582 if (!i && !bflag) 583 putchar('\n'); 584 switch (save_errno) { 585 case EOPNOTSUPP: 586 warnx("%s: value is not available%s", 587 string, line); 588 return (1); 589 case ENOTDIR: 590 warnx("%s: specification is incomplete%s", 591 string, line); 592 return (1); 593 case ENOMEM: 594 warnx("%s: type is unknown to this program%s", 595 string, line); 596 return (1); 597 default: 598 warnc(save_errno, "%s%s", string, line); 599 return (1); 600 } 601 } 602 free(newbuf); 603 free(buf); 604 if (!bflag) 605 printf(" -> "); 606 i = nflag; 607 nflag = 1; 608 j = show_var(mib, len, false); 609 if (!j && !bflag) 610 putchar('\n'); 611 nflag = i; 612 613 return (0); 614 } 615 616 static int 617 parsefile(FILE *file) 618 { 619 char line[BUFSIZ], *p, *pq, *pdq; 620 int warncount = 0, lineno = 0; 621 622 while (fgets(line, sizeof(line), file) != NULL) { 623 lineno++; 624 p = line; 625 pq = strchr(line, '\''); 626 pdq = strchr(line, '\"'); 627 /* Replace the first # with \0. */ 628 while((p = strchr(p, '#')) != NULL) { 629 if (pq != NULL && p > pq) { 630 if ((p = strchr(pq+1, '\'')) != NULL) 631 *(++p) = '\0'; 632 break; 633 } else if (pdq != NULL && p > pdq) { 634 if ((p = strchr(pdq+1, '\"')) != NULL) 635 *(++p) = '\0'; 636 break; 637 } else if (p == line || *(p-1) != '\\') { 638 *p = '\0'; 639 break; 640 } 641 p++; 642 } 643 /* Trim spaces */ 644 p = line + strlen(line) - 1; 645 while (p >= line && isspace((int)*p)) { 646 *p = '\0'; 647 p--; 648 } 649 p = line; 650 while (isspace((int)*p)) 651 p++; 652 if (*p == '\0') 653 continue; 654 else 655 warncount += parse(p, lineno); 656 } 657 658 return (warncount); 659 } 660 661 /* These functions will dump out various interesting structures. */ 662 663 static int 664 S_clockinfo(size_t l2, void *p) 665 { 666 struct clockinfo *ci = (struct clockinfo*)p; 667 668 if (l2 != sizeof(*ci)) { 669 warnx("S_clockinfo %zu != %zu", l2, sizeof(*ci)); 670 return (1); 671 } 672 printf(hflag ? "{ hz = %'d, tick = %'d, profhz = %'d, stathz = %'d }" : 673 "{ hz = %d, tick = %d, profhz = %d, stathz = %d }", 674 ci->hz, ci->tick, ci->profhz, ci->stathz); 675 return (0); 676 } 677 678 static int 679 S_loadavg(size_t l2, void *p) 680 { 681 struct loadavg *tv = (struct loadavg*)p; 682 683 if (l2 != sizeof(*tv)) { 684 warnx("S_loadavg %zu != %zu", l2, sizeof(*tv)); 685 return (1); 686 } 687 printf(hflag ? "{ %'.2f %'.2f %'.2f }" : "{ %.2f %.2f %.2f }", 688 (double)tv->ldavg[0]/(double)tv->fscale, 689 (double)tv->ldavg[1]/(double)tv->fscale, 690 (double)tv->ldavg[2]/(double)tv->fscale); 691 return (0); 692 } 693 694 static int 695 S_timeval(size_t l2, void *p) 696 { 697 struct timeval *tv = (struct timeval*)p; 698 time_t tv_sec; 699 char *p1, *p2; 700 701 if (l2 != sizeof(*tv)) { 702 warnx("S_timeval %zu != %zu", l2, sizeof(*tv)); 703 return (1); 704 } 705 printf(hflag ? "{ sec = %'jd, usec = %'ld } " : 706 "{ sec = %jd, usec = %ld } ", 707 (intmax_t)tv->tv_sec, tv->tv_usec); 708 tv_sec = tv->tv_sec; 709 p1 = strdup(ctime(&tv_sec)); 710 for (p2=p1; *p2 ; p2++) 711 if (*p2 == '\n') 712 *p2 = '\0'; 713 fputs(p1, stdout); 714 free(p1); 715 return (0); 716 } 717 718 static int 719 S_vmtotal(size_t l2, void *p) 720 { 721 struct vmtotal *v; 722 int pageKilo; 723 724 if (l2 != sizeof(*v)) { 725 warnx("S_vmtotal %zu != %zu", l2, sizeof(*v)); 726 return (1); 727 } 728 729 v = p; 730 pageKilo = getpagesize() / 1024; 731 732 #define pg2k(a) ((uintmax_t)(a) * pageKilo) 733 printf("\nSystem wide totals computed every five seconds:" 734 " (values in kilobytes)\n"); 735 printf("===============================================\n"); 736 printf("Processes:\t\t(RUNQ: %d Disk Wait: %d Page Wait: " 737 "%d Sleep: %d)\n", 738 v->t_rq, v->t_dw, v->t_pw, v->t_sl); 739 printf("Virtual Memory:\t\t(Total: %juK Active: %juK)\n", 740 pg2k(v->t_vm), pg2k(v->t_avm)); 741 printf("Real Memory:\t\t(Total: %juK Active: %juK)\n", 742 pg2k(v->t_rm), pg2k(v->t_arm)); 743 printf("Shared Virtual Memory:\t(Total: %juK Active: %juK)\n", 744 pg2k(v->t_vmshr), pg2k(v->t_avmshr)); 745 printf("Shared Real Memory:\t(Total: %juK Active: %juK)\n", 746 pg2k(v->t_rmshr), pg2k(v->t_armshr)); 747 printf("Free Memory:\t%juK", pg2k(v->t_free)); 748 return (0); 749 } 750 751 static int 752 S_input_id(size_t l2, void *p) 753 { 754 struct input_id *id = p; 755 756 if (l2 != sizeof(*id)) { 757 warnx("S_input_id %zu != %zu", l2, sizeof(*id)); 758 return (1); 759 } 760 761 printf("{ bustype = 0x%04x, vendor = 0x%04x, " 762 "product = 0x%04x, version = 0x%04x }", 763 id->bustype, id->vendor, id->product, id->version); 764 return (0); 765 } 766 767 static int 768 S_pagesizes(size_t l2, void *p) 769 { 770 char buf[256]; 771 u_long *ps; 772 size_t l; 773 int i; 774 775 l = snprintf(buf, sizeof(buf), "{ "); 776 ps = p; 777 for (i = 0; i * sizeof(*ps) < l2 && ps[i] != 0 && l < sizeof(buf); 778 i++) { 779 l += snprintf(&buf[l], sizeof(buf) - l, 780 "%s%lu", i == 0 ? "" : ", ", ps[i]); 781 } 782 if (l < sizeof(buf)) 783 (void)snprintf(&buf[l], sizeof(buf) - l, " }"); 784 785 printf("%s", buf); 786 787 return (0); 788 } 789 790 #ifdef __amd64__ 791 static int 792 S_efi_map(size_t l2, void *p) 793 { 794 struct efi_map_header *efihdr; 795 struct efi_md *map; 796 const char *type; 797 size_t efisz; 798 int ndesc, i; 799 800 static const char * const types[] = { 801 [EFI_MD_TYPE_NULL] = "Reserved", 802 [EFI_MD_TYPE_CODE] = "LoaderCode", 803 [EFI_MD_TYPE_DATA] = "LoaderData", 804 [EFI_MD_TYPE_BS_CODE] = "BootServicesCode", 805 [EFI_MD_TYPE_BS_DATA] = "BootServicesData", 806 [EFI_MD_TYPE_RT_CODE] = "RuntimeServicesCode", 807 [EFI_MD_TYPE_RT_DATA] = "RuntimeServicesData", 808 [EFI_MD_TYPE_FREE] = "ConventionalMemory", 809 [EFI_MD_TYPE_BAD] = "UnusableMemory", 810 [EFI_MD_TYPE_RECLAIM] = "ACPIReclaimMemory", 811 [EFI_MD_TYPE_FIRMWARE] = "ACPIMemoryNVS", 812 [EFI_MD_TYPE_IOMEM] = "MemoryMappedIO", 813 [EFI_MD_TYPE_IOPORT] = "MemoryMappedIOPortSpace", 814 [EFI_MD_TYPE_PALCODE] = "PalCode", 815 [EFI_MD_TYPE_PERSISTENT] = "PersistentMemory", 816 }; 817 818 /* 819 * Memory map data provided by UEFI via the GetMemoryMap 820 * Boot Services API. 821 */ 822 if (l2 < sizeof(*efihdr)) { 823 warnx("S_efi_map length less than header"); 824 return (1); 825 } 826 efihdr = p; 827 efisz = (sizeof(struct efi_map_header) + 0xf) & ~0xf; 828 map = (struct efi_md *)((uint8_t *)efihdr + efisz); 829 830 if (efihdr->descriptor_size == 0) 831 return (0); 832 if (l2 != efisz + efihdr->memory_size) { 833 warnx("S_efi_map length mismatch %zu vs %zu", l2, efisz + 834 efihdr->memory_size); 835 return (1); 836 } 837 ndesc = efihdr->memory_size / efihdr->descriptor_size; 838 839 printf("\n%23s %12s %12s %8s %4s", 840 "Type", "Physical", "Virtual", "#Pages", "Attr"); 841 842 for (i = 0; i < ndesc; i++, 843 map = efi_next_descriptor(map, efihdr->descriptor_size)) { 844 type = NULL; 845 if (map->md_type < nitems(types)) 846 type = types[map->md_type]; 847 if (type == NULL) 848 type = "<INVALID>"; 849 printf("\n%23s %012jx %012jx %08jx ", type, 850 (uintmax_t)map->md_phys, (uintmax_t)map->md_virt, 851 (uintmax_t)map->md_pages); 852 if (map->md_attr & EFI_MD_ATTR_UC) 853 printf("UC "); 854 if (map->md_attr & EFI_MD_ATTR_WC) 855 printf("WC "); 856 if (map->md_attr & EFI_MD_ATTR_WT) 857 printf("WT "); 858 if (map->md_attr & EFI_MD_ATTR_WB) 859 printf("WB "); 860 if (map->md_attr & EFI_MD_ATTR_UCE) 861 printf("UCE "); 862 if (map->md_attr & EFI_MD_ATTR_WP) 863 printf("WP "); 864 if (map->md_attr & EFI_MD_ATTR_RP) 865 printf("RP "); 866 if (map->md_attr & EFI_MD_ATTR_XP) 867 printf("XP "); 868 if (map->md_attr & EFI_MD_ATTR_RT) 869 printf("RUNTIME"); 870 } 871 return (0); 872 } 873 #endif 874 875 #if defined(__amd64__) || defined(__i386__) 876 static int 877 S_bios_smap_xattr(size_t l2, void *p) 878 { 879 struct bios_smap_xattr *smap, *end; 880 881 if (l2 % sizeof(*smap) != 0) { 882 warnx("S_bios_smap_xattr %zu is not a multiple of %zu", l2, 883 sizeof(*smap)); 884 return (1); 885 } 886 887 end = (struct bios_smap_xattr *)((char *)p + l2); 888 for (smap = p; smap < end; smap++) 889 printf("\nSMAP type=%02x, xattr=%02x, base=%016jx, len=%016jx", 890 smap->type, smap->xattr, (uintmax_t)smap->base, 891 (uintmax_t)smap->length); 892 return (0); 893 } 894 #endif 895 896 static int 897 strIKtoi(const char *str, char **endptrp, const char *fmt) 898 { 899 int kelv; 900 float temp; 901 size_t len; 902 const char *p; 903 int prec, i; 904 905 assert(errno == 0); 906 907 len = strlen(str); 908 /* caller already checked this */ 909 assert(len > 0); 910 911 /* 912 * A format of "IK" is in deciKelvin. A format of "IK3" is in 913 * milliKelvin. The single digit following IK is log10 of the 914 * multiplying factor to convert Kelvin into the untis of this sysctl, 915 * or the dividing factor to convert the sysctl value to Kelvin. Numbers 916 * larger than 6 will run into precision issues with 32-bit integers. 917 * Characters that aren't ASCII digits after the 'K' are ignored. No 918 * localization is present because this is an interface from the kernel 919 * to this program (eg not an end-user interface), so isdigit() isn't 920 * used here. 921 */ 922 if (fmt[2] != '\0' && fmt[2] >= '0' && fmt[2] <= '9') 923 prec = fmt[2] - '0'; 924 else 925 prec = 1; 926 p = &str[len - 1]; 927 if (*p == 'C' || *p == 'F' || *p == 'K') { 928 temp = strtof(str, endptrp); 929 if (*endptrp != str && *endptrp == p && errno == 0) { 930 if (*p == 'F') 931 temp = (temp - 32) * 5 / 9; 932 *endptrp = NULL; 933 if (*p != 'K') 934 temp += 273.15; 935 for (i = 0; i < prec; i++) 936 temp *= 10.0; 937 return ((int)(temp + 0.5)); 938 } 939 } else { 940 /* No unit specified -> treat it as a raw number */ 941 kelv = (int)strtol(str, endptrp, 10); 942 if (*endptrp != str && *endptrp == p && errno == 0) { 943 *endptrp = NULL; 944 return (kelv); 945 } 946 } 947 948 errno = ERANGE; 949 return (0); 950 } 951 952 /* 953 * These functions uses a presently undocumented interface to the kernel 954 * to walk the tree and get the type so it can print the value. 955 * This interface is under work and consideration, and should probably 956 * be killed with a big axe by the first person who can find the time. 957 * (be aware though, that the proper interface isn't as obvious as it 958 * may seem, there are various conflicting requirements. 959 */ 960 961 static int 962 name2oid(const char *name, int *oidp) 963 { 964 int oid[2]; 965 int i; 966 size_t j; 967 968 oid[0] = CTL_SYSCTL; 969 oid[1] = CTL_SYSCTL_NAME2OID; 970 971 j = CTL_MAXNAME * sizeof(int); 972 i = sysctl(oid, 2, oidp, &j, name, strlen(name)); 973 if (i < 0) 974 return (i); 975 j /= sizeof(int); 976 return (j); 977 } 978 979 static int 980 oidfmt(int *oid, int len, char *fmt, u_int *kind) 981 { 982 int qoid[CTL_MAXNAME+2]; 983 u_char buf[BUFSIZ]; 984 int i; 985 size_t j; 986 987 qoid[0] = CTL_SYSCTL; 988 qoid[1] = CTL_SYSCTL_OIDFMT; 989 memcpy(qoid + 2, oid, len * sizeof(int)); 990 991 j = sizeof(buf); 992 i = sysctl(qoid, len + 2, buf, &j, 0, 0); 993 if (i) 994 err(1, "sysctl fmt %d %zu %d", i, j, errno); 995 996 if (kind) 997 *kind = *(u_int *)buf; 998 999 if (fmt) 1000 strcpy(fmt, (char *)(buf + sizeof(u_int))); 1001 return (0); 1002 } 1003 1004 /* 1005 * This displays a combination of name, type, format, and/or description. 1006 * 1007 * Returns zero if anything was actually output. 1008 * Returns one if there is an error. 1009 */ 1010 static int 1011 show_info(char *name, const char *sep, int ctltype, char *fmt, int *qoid, int nlen) 1012 { 1013 u_char buf[BUFSIZ]; 1014 const char *prntype; 1015 int error = 0, i; 1016 size_t j; 1017 1018 if (!nflag) 1019 printf("%s%s", name, sep); 1020 if (tflag) { 1021 if (ctl_typename[ctltype] != NULL) 1022 prntype = ctl_typename[ctltype]; 1023 else { 1024 prntype = "unknown"; 1025 error++; 1026 } 1027 if (Fflag || dflag) 1028 printf("%s%s", prntype, sep); 1029 else 1030 fputs(prntype, stdout); 1031 } 1032 if (Fflag) { 1033 if (!isprint(fmt[0])) /* Few codes doesn't have formats */ 1034 fmt = ""; 1035 if (dflag) 1036 printf("%s%s", fmt, sep); 1037 else 1038 fputs(fmt, stdout); 1039 } 1040 if (!dflag) 1041 return (error); 1042 1043 qoid[1] = CTL_SYSCTL_OIDDESCR; 1044 bzero(buf, BUFSIZ); 1045 j = sizeof(buf); 1046 i = sysctl(qoid, nlen + 2, buf, &j, 0, 0); 1047 if (i < 0) { 1048 putchar('\n'); 1049 return (1); 1050 } 1051 fputs(buf, stdout); 1052 return (error); 1053 } 1054 1055 /* 1056 * This formats and outputs the value of one variable 1057 * 1058 * Returns zero if anything was actually output. 1059 * Returns one if didn't know what to do with this. 1060 * Return minus one if we had errors. 1061 */ 1062 static int 1063 show_var(int *oid, int nlen, bool honor_skip) 1064 { 1065 static int skip_len = 0, skip_oid[CTL_MAXNAME]; 1066 u_char *val, *oval, *p; 1067 char name[BUFSIZ], fmt[BUFSIZ]; 1068 const char *sep, *sep1; 1069 int qoid[CTL_MAXNAME+2]; 1070 uintmax_t umv; 1071 intmax_t mv; 1072 int i, hexlen, sign, ctltype; 1073 size_t intlen; 1074 size_t j, len; 1075 u_int kind; 1076 float base; 1077 int (*func)(size_t, void *); 1078 int prec; 1079 1080 /* Silence GCC. */ 1081 umv = mv = intlen = 0; 1082 1083 bzero(fmt, BUFSIZ); 1084 bzero(name, BUFSIZ); 1085 qoid[0] = CTL_SYSCTL; 1086 qoid[1] = CTL_SYSCTL_NAME; 1087 memcpy(qoid + 2, oid, nlen * sizeof(int)); 1088 j = sizeof(name); 1089 i = sysctl(qoid, nlen + 2, name, &j, 0, 0); 1090 if (i || !j) 1091 err(1, "sysctl name %d %zu %d", i, j, errno); 1092 1093 oidfmt(oid, nlen, fmt, &kind); 1094 /* if Wflag then only list sysctls that are writeable and not stats. */ 1095 if (Wflag && ((kind & CTLFLAG_WR) == 0 || (kind & CTLFLAG_STATS) != 0)) 1096 return (1); 1097 1098 /* if Jflag then only list sysctls that are prison variables. */ 1099 if (Jflag && (kind & CTLFLAG_PRISON) == 0) 1100 return (1); 1101 1102 /* if Tflag then only list sysctls that are tuneables. */ 1103 if (Tflag && (kind & CTLFLAG_TUN) == 0) 1104 return (1); 1105 1106 /* if Vflag then only list sysctls that are vnet variables. */ 1107 if (Vflag && (kind & CTLFLAG_VNET) == 0) 1108 return (1); 1109 1110 if (Nflag) { 1111 printf("%s", name); 1112 return (0); 1113 } 1114 1115 if (eflag) 1116 sep = "="; 1117 else 1118 sep = ": "; 1119 1120 ctltype = (kind & CTLTYPE); 1121 if (tflag || Fflag || dflag) 1122 return show_info(name, sep, ctltype, fmt, qoid, nlen); 1123 1124 /* keep track of encountered skip nodes, ignoring descendants */ 1125 if ((skip_len == 0 || skip_len >= nlen * (int)sizeof(int)) && 1126 (kind & CTLFLAG_SKIP) != 0) { 1127 /* Save this oid so we can skip descendants. */ 1128 skip_len = nlen * sizeof(int); 1129 memcpy(skip_oid, oid, skip_len); 1130 } 1131 1132 /* bail before fetching the value if we're honoring skip */ 1133 if (honor_skip) { 1134 if (0 < skip_len && skip_len <= nlen * (int)sizeof(int) && 1135 memcmp(skip_oid, oid, skip_len) == 0) 1136 return (1); 1137 /* Not a skip node or descendant of a skip node. */ 1138 skip_len = 0; 1139 } 1140 1141 /* don't fetch opaques that we don't know how to print */ 1142 if (ctltype == CTLTYPE_OPAQUE) { 1143 if (strcmp(fmt, "S,clockinfo") == 0) 1144 func = S_clockinfo; 1145 else if (strcmp(fmt, "S,timeval") == 0) 1146 func = S_timeval; 1147 else if (strcmp(fmt, "S,loadavg") == 0) 1148 func = S_loadavg; 1149 else if (strcmp(fmt, "S,vmtotal") == 0) 1150 func = S_vmtotal; 1151 else if (strcmp(fmt, "S,input_id") == 0) 1152 func = S_input_id; 1153 else if (strcmp(fmt, "S,pagesizes") == 0) 1154 func = S_pagesizes; 1155 #ifdef __amd64__ 1156 else if (strcmp(fmt, "S,efi_map_header") == 0) 1157 func = S_efi_map; 1158 #endif 1159 #if defined(__amd64__) || defined(__i386__) 1160 else if (strcmp(fmt, "S,bios_smap_xattr") == 0) 1161 func = S_bios_smap_xattr; 1162 #endif 1163 else { 1164 func = NULL; 1165 if (!bflag && !oflag && !xflag) 1166 return (1); 1167 } 1168 } 1169 1170 /* find an estimate of how much we need for this var */ 1171 if (Bflag) 1172 j = Bflag; 1173 else { 1174 j = 0; 1175 i = sysctl(oid, nlen, 0, &j, 0, 0); 1176 j += j; /* we want to be sure :-) */ 1177 } 1178 1179 val = oval = malloc(j + 1); 1180 if (val == NULL) { 1181 warnx("malloc failed"); 1182 return (1); 1183 } 1184 len = j; 1185 i = sysctl(oid, nlen, val, &len, 0, 0); 1186 if (i != 0 || (len == 0 && ctltype != CTLTYPE_STRING)) { 1187 free(oval); 1188 return (1); 1189 } 1190 1191 if (bflag) { 1192 fwrite(val, 1, len, stdout); 1193 free(oval); 1194 return (0); 1195 } 1196 val[len] = '\0'; 1197 p = val; 1198 sign = ctl_sign[ctltype]; 1199 intlen = ctl_size[ctltype]; 1200 1201 switch (ctltype) { 1202 case CTLTYPE_STRING: 1203 if (!nflag) 1204 printf("%s%s", name, sep); 1205 if (lflag) 1206 printf("%zd%s", len, sep); 1207 printf("%.*s", (int)len, p); 1208 free(oval); 1209 return (0); 1210 1211 case CTLTYPE_INT: 1212 case CTLTYPE_UINT: 1213 case CTLTYPE_LONG: 1214 case CTLTYPE_ULONG: 1215 case CTLTYPE_S8: 1216 case CTLTYPE_S16: 1217 case CTLTYPE_S32: 1218 case CTLTYPE_S64: 1219 case CTLTYPE_U8: 1220 case CTLTYPE_U16: 1221 case CTLTYPE_U32: 1222 case CTLTYPE_U64: 1223 if (!nflag) 1224 printf("%s%s", name, sep); 1225 if (lflag) 1226 printf("%zd%s", len, sep); 1227 hexlen = 2 + (intlen * CHAR_BIT + 3) / 4; 1228 sep1 = ""; 1229 while (len >= intlen) { 1230 switch (kind & CTLTYPE) { 1231 case CTLTYPE_INT: 1232 case CTLTYPE_UINT: 1233 umv = *(u_int *)p; 1234 mv = *(int *)p; 1235 break; 1236 case CTLTYPE_LONG: 1237 case CTLTYPE_ULONG: 1238 umv = *(u_long *)p; 1239 mv = *(long *)p; 1240 break; 1241 case CTLTYPE_S8: 1242 case CTLTYPE_U8: 1243 umv = *(uint8_t *)p; 1244 mv = *(int8_t *)p; 1245 break; 1246 case CTLTYPE_S16: 1247 case CTLTYPE_U16: 1248 umv = *(uint16_t *)p; 1249 mv = *(int16_t *)p; 1250 break; 1251 case CTLTYPE_S32: 1252 case CTLTYPE_U32: 1253 umv = *(uint32_t *)p; 1254 mv = *(int32_t *)p; 1255 break; 1256 case CTLTYPE_S64: 1257 case CTLTYPE_U64: 1258 umv = *(uint64_t *)p; 1259 mv = *(int64_t *)p; 1260 break; 1261 } 1262 fputs(sep1, stdout); 1263 if (xflag) 1264 printf("%#0*jx", hexlen, umv); 1265 else if (!sign) 1266 printf(hflag ? "%'ju" : "%ju", umv); 1267 else if (fmt[1] == 'K') { 1268 if (mv < 0) 1269 printf("%jd", mv); 1270 else { 1271 /* 1272 * See strIKtoi for details on fmt. 1273 */ 1274 prec = 1; 1275 if (fmt[2] != '\0') 1276 prec = fmt[2] - '0'; 1277 base = 1.0; 1278 for (int i = 0; i < prec; i++) 1279 base *= 10.0; 1280 printf("%.*fC", prec, 1281 (float)mv / base - 273.15); 1282 } 1283 } else 1284 printf(hflag ? "%'jd" : "%jd", mv); 1285 sep1 = " "; 1286 len -= intlen; 1287 p += intlen; 1288 } 1289 free(oval); 1290 return (0); 1291 1292 case CTLTYPE_OPAQUE: 1293 i = 0; 1294 if (func) { 1295 if (!nflag) 1296 printf("%s%s", name, sep); 1297 if (lflag) 1298 printf("%zd%s", len, sep); 1299 i = (*func)(len, p); 1300 free(oval); 1301 return (i); 1302 } 1303 /* FALLTHROUGH */ 1304 default: 1305 if (!oflag && !xflag) { 1306 free(oval); 1307 return (1); 1308 } 1309 if (!nflag) 1310 printf("%s%s", name, sep); 1311 if (lflag) 1312 printf("%zd%s", len, sep); 1313 printf("Format:%s Length:%zu Dump:0x", fmt, len); 1314 while (len-- && (xflag || p < val + 16)) 1315 printf("%02x", *p++); 1316 if (!xflag && len > 16) 1317 printf("..."); 1318 free(oval); 1319 return (0); 1320 } 1321 free(oval); 1322 return (1); 1323 } 1324 1325 static int 1326 sysctl_all(int *oid, int len) 1327 { 1328 int name1[22], name2[22]; 1329 int i, j; 1330 size_t l1, l2; 1331 1332 name1[0] = CTL_SYSCTL; 1333 name1[1] = (oid != NULL || Nflag || dflag || tflag) ? 1334 CTL_SYSCTL_NEXTNOSKIP : CTL_SYSCTL_NEXT; 1335 l1 = 2; 1336 if (len) { 1337 memcpy(name1 + 2, oid, len * sizeof(int)); 1338 l1 += len; 1339 } else { 1340 name1[2] = CTL_KERN; 1341 l1++; 1342 } 1343 for (;;) { 1344 l2 = sizeof(name2); 1345 j = sysctl(name1, l1, name2, &l2, 0, 0); 1346 if (j < 0) { 1347 if (errno == ENOENT) 1348 return (0); 1349 else 1350 err(1, "sysctl(getnext) %d %zu", j, l2); 1351 } 1352 1353 l2 /= sizeof(int); 1354 1355 if (len < 0 || l2 < (unsigned int)len) 1356 return (0); 1357 1358 if (memcmp(name2, oid, len * sizeof(int)) != 0) 1359 return (0); 1360 1361 i = show_var(name2, l2, true); 1362 if (!i && !bflag) 1363 putchar('\n'); 1364 1365 memcpy(name1 + 2, name2, l2 * sizeof(int)); 1366 l1 = 2 + l2; 1367 } 1368 } 1369