1 /* 2 * Copyright (c) 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef lint 31 static const char copyright[] = 32 "@(#) Copyright (c) 1993\n\ 33 The Regents of the University of California. All rights reserved.\n"; 34 #endif /* not lint */ 35 36 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)from: sysctl.c 8.1 (Berkeley) 6/6/93"; 39 #endif 40 static const char rcsid[] = 41 "$FreeBSD$"; 42 #endif /* not lint */ 43 44 #include <sys/param.h> 45 #include <sys/time.h> 46 #include <sys/resource.h> 47 #include <sys/stat.h> 48 #include <sys/sysctl.h> 49 #include <sys/vmmeter.h> 50 51 #ifdef __amd64__ 52 #include <sys/efi.h> 53 #include <machine/metadata.h> 54 #endif 55 56 #if defined(__amd64__) || defined(__i386__) 57 #include <machine/pc/bios.h> 58 #endif 59 60 #include <assert.h> 61 #include <ctype.h> 62 #include <err.h> 63 #include <errno.h> 64 #include <inttypes.h> 65 #include <locale.h> 66 #include <stdio.h> 67 #include <stdlib.h> 68 #include <string.h> 69 #include <sysexits.h> 70 #include <unistd.h> 71 72 static const char *conffile; 73 74 static int aflag, bflag, Bflag, dflag, eflag, hflag, iflag; 75 static int Nflag, nflag, oflag, qflag, tflag, Tflag, Wflag, xflag; 76 77 static int oidfmt(int *, int, char *, u_int *); 78 static int parsefile(const char *); 79 static int parse(const char *, int); 80 static int show_var(int *, int); 81 static int sysctl_all(int *oid, int len); 82 static int name2oid(const char *, int *); 83 84 static int strIKtoi(const char *, char **, const char *); 85 86 static int ctl_sign[CTLTYPE+1] = { 87 [CTLTYPE_INT] = 1, 88 [CTLTYPE_LONG] = 1, 89 [CTLTYPE_S8] = 1, 90 [CTLTYPE_S16] = 1, 91 [CTLTYPE_S32] = 1, 92 [CTLTYPE_S64] = 1, 93 }; 94 95 static int ctl_size[CTLTYPE+1] = { 96 [CTLTYPE_INT] = sizeof(int), 97 [CTLTYPE_UINT] = sizeof(u_int), 98 [CTLTYPE_LONG] = sizeof(long), 99 [CTLTYPE_ULONG] = sizeof(u_long), 100 [CTLTYPE_S8] = sizeof(int8_t), 101 [CTLTYPE_S16] = sizeof(int16_t), 102 [CTLTYPE_S32] = sizeof(int32_t), 103 [CTLTYPE_S64] = sizeof(int64_t), 104 [CTLTYPE_U8] = sizeof(uint8_t), 105 [CTLTYPE_U16] = sizeof(uint16_t), 106 [CTLTYPE_U32] = sizeof(uint32_t), 107 [CTLTYPE_U64] = sizeof(uint64_t), 108 }; 109 110 static const char *ctl_typename[CTLTYPE+1] = { 111 [CTLTYPE_INT] = "integer", 112 [CTLTYPE_UINT] = "unsigned integer", 113 [CTLTYPE_LONG] = "long integer", 114 [CTLTYPE_ULONG] = "unsigned long", 115 [CTLTYPE_U8] = "uint8_t", 116 [CTLTYPE_U16] = "uint16_t", 117 [CTLTYPE_U32] = "uint16_t", 118 [CTLTYPE_U64] = "uint64_t", 119 [CTLTYPE_S8] = "int8_t", 120 [CTLTYPE_S16] = "int16_t", 121 [CTLTYPE_S32] = "int32_t", 122 [CTLTYPE_S64] = "int64_t", 123 [CTLTYPE_NODE] = "node", 124 [CTLTYPE_STRING] = "string", 125 [CTLTYPE_OPAQUE] = "opaque", 126 }; 127 128 static void 129 usage(void) 130 { 131 132 (void)fprintf(stderr, "%s\n%s\n", 133 "usage: sysctl [-bdehiNnoqTtWx] [ -B <bufsize> ] [-f filename] name[=value] ...", 134 " sysctl [-bdehNnoqTtWx] [ -B <bufsize> ] -a"); 135 exit(1); 136 } 137 138 int 139 main(int argc, char **argv) 140 { 141 int ch; 142 int warncount = 0; 143 144 setlocale(LC_NUMERIC, ""); 145 setbuf(stdout,0); 146 setbuf(stderr,0); 147 148 while ((ch = getopt(argc, argv, "AabB:def:hiNnoqtTwWxX")) != -1) { 149 switch (ch) { 150 case 'A': 151 /* compatibility */ 152 aflag = oflag = 1; 153 break; 154 case 'a': 155 aflag = 1; 156 break; 157 case 'b': 158 bflag = 1; 159 break; 160 case 'B': 161 Bflag = strtol(optarg, NULL, 0); 162 break; 163 case 'd': 164 dflag = 1; 165 break; 166 case 'e': 167 eflag = 1; 168 break; 169 case 'f': 170 conffile = optarg; 171 break; 172 case 'h': 173 hflag = 1; 174 break; 175 case 'i': 176 iflag = 1; 177 break; 178 case 'N': 179 Nflag = 1; 180 break; 181 case 'n': 182 nflag = 1; 183 break; 184 case 'o': 185 oflag = 1; 186 break; 187 case 'q': 188 qflag = 1; 189 break; 190 case 't': 191 tflag = 1; 192 break; 193 case 'T': 194 Tflag = 1; 195 break; 196 case 'w': 197 /* compatibility */ 198 /* ignored */ 199 break; 200 case 'W': 201 Wflag = 1; 202 break; 203 case 'X': 204 /* compatibility */ 205 aflag = xflag = 1; 206 break; 207 case 'x': 208 xflag = 1; 209 break; 210 default: 211 usage(); 212 } 213 } 214 argc -= optind; 215 argv += optind; 216 217 if (Nflag && nflag) 218 usage(); 219 if (aflag && argc == 0) 220 exit(sysctl_all(0, 0)); 221 if (argc == 0 && conffile == NULL) 222 usage(); 223 224 warncount = 0; 225 if (conffile != NULL) 226 warncount += parsefile(conffile); 227 228 while (argc-- > 0) 229 warncount += parse(*argv++, 0); 230 231 return (warncount); 232 } 233 234 /* 235 * Parse a name into a MIB entry. 236 * Lookup and print out the MIB entry if it exists. 237 * Set a new value if requested. 238 */ 239 static int 240 parse(const char *string, int lineno) 241 { 242 int len, i, j; 243 const void *newval; 244 const char *newvalstr = NULL; 245 int8_t i8val; 246 uint8_t u8val; 247 int16_t i16val; 248 uint16_t u16val; 249 int32_t i32val; 250 uint32_t u32val; 251 int intval; 252 unsigned int uintval; 253 long longval; 254 unsigned long ulongval; 255 size_t newsize = Bflag; 256 int64_t i64val; 257 uint64_t u64val; 258 int mib[CTL_MAXNAME]; 259 char *cp, *bufp, buf[BUFSIZ], *endptr = NULL, fmt[BUFSIZ], line[BUFSIZ]; 260 u_int kind; 261 262 if (lineno) 263 snprintf(line, sizeof(line), " at line %d", lineno); 264 else 265 line[0] = '\0'; 266 267 cp = buf; 268 if (snprintf(buf, BUFSIZ, "%s", string) >= BUFSIZ) { 269 warnx("oid too long: '%s'%s", string, line); 270 return (1); 271 } 272 bufp = strsep(&cp, "=:"); 273 if (cp != NULL) { 274 /* Tflag just lists tunables, do not allow assignment */ 275 if (Tflag || Wflag) { 276 warnx("Can't set variables when using -T or -W"); 277 usage(); 278 } 279 while (isspace(*cp)) 280 cp++; 281 /* Strip a pair of " or ' if any. */ 282 switch (*cp) { 283 case '\"': 284 case '\'': 285 if (cp[strlen(cp) - 1] == *cp) 286 cp[strlen(cp) - 1] = '\0'; 287 cp++; 288 } 289 newvalstr = cp; 290 newsize = strlen(cp); 291 } 292 /* Trim spaces */ 293 cp = bufp + strlen(bufp) - 1; 294 while (cp >= bufp && isspace((int)*cp)) { 295 *cp = '\0'; 296 cp--; 297 } 298 len = name2oid(bufp, mib); 299 300 if (len < 0) { 301 if (iflag) 302 return (0); 303 if (qflag) 304 return (1); 305 else { 306 if (errno == ENOENT) { 307 warnx("unknown oid '%s'%s", bufp, line); 308 } else { 309 warn("unknown oid '%s'%s", bufp, line); 310 } 311 return (1); 312 } 313 } 314 315 if (oidfmt(mib, len, fmt, &kind)) { 316 warn("couldn't find format of oid '%s'%s", bufp, line); 317 if (iflag) 318 return (1); 319 else 320 exit(1); 321 } 322 323 if (newvalstr == NULL || dflag) { 324 if ((kind & CTLTYPE) == CTLTYPE_NODE) { 325 if (dflag) { 326 i = show_var(mib, len); 327 if (!i && !bflag) 328 putchar('\n'); 329 } 330 sysctl_all(mib, len); 331 } else { 332 i = show_var(mib, len); 333 if (!i && !bflag) 334 putchar('\n'); 335 } 336 } else { 337 if ((kind & CTLTYPE) == CTLTYPE_NODE) { 338 warnx("oid '%s' isn't a leaf node%s", bufp, line); 339 return (1); 340 } 341 342 if (!(kind & CTLFLAG_WR)) { 343 if (kind & CTLFLAG_TUN) { 344 warnx("oid '%s' is a read only tunable%s", bufp, line); 345 warnx("Tunable values are set in /boot/loader.conf"); 346 } else 347 warnx("oid '%s' is read only%s", bufp, line); 348 return (1); 349 } 350 351 switch (kind & CTLTYPE) { 352 case CTLTYPE_INT: 353 case CTLTYPE_UINT: 354 case CTLTYPE_LONG: 355 case CTLTYPE_ULONG: 356 case CTLTYPE_S8: 357 case CTLTYPE_S16: 358 case CTLTYPE_S32: 359 case CTLTYPE_S64: 360 case CTLTYPE_U8: 361 case CTLTYPE_U16: 362 case CTLTYPE_U32: 363 case CTLTYPE_U64: 364 if (strlen(newvalstr) == 0) { 365 warnx("empty numeric value"); 366 return (1); 367 } 368 /* FALLTHROUGH */ 369 case CTLTYPE_STRING: 370 break; 371 default: 372 warnx("oid '%s' is type %d," 373 " cannot set that%s", bufp, 374 kind & CTLTYPE, line); 375 return (1); 376 } 377 378 errno = 0; 379 380 switch (kind & CTLTYPE) { 381 case CTLTYPE_INT: 382 if (strncmp(fmt, "IK", 2) == 0) 383 intval = strIKtoi(newvalstr, &endptr, fmt); 384 else 385 intval = (int)strtol(newvalstr, &endptr, 386 0); 387 newval = &intval; 388 newsize = sizeof(intval); 389 break; 390 case CTLTYPE_UINT: 391 uintval = (int) strtoul(newvalstr, &endptr, 0); 392 newval = &uintval; 393 newsize = sizeof(uintval); 394 break; 395 case CTLTYPE_LONG: 396 longval = strtol(newvalstr, &endptr, 0); 397 newval = &longval; 398 newsize = sizeof(longval); 399 break; 400 case CTLTYPE_ULONG: 401 ulongval = strtoul(newvalstr, &endptr, 0); 402 newval = &ulongval; 403 newsize = sizeof(ulongval); 404 break; 405 case CTLTYPE_STRING: 406 newval = newvalstr; 407 break; 408 case CTLTYPE_S8: 409 i8val = (int8_t)strtol(newvalstr, &endptr, 0); 410 newval = &i8val; 411 newsize = sizeof(i8val); 412 break; 413 case CTLTYPE_S16: 414 i16val = (int16_t)strtol(newvalstr, &endptr, 415 0); 416 newval = &i16val; 417 newsize = sizeof(i16val); 418 break; 419 case CTLTYPE_S32: 420 i32val = (int32_t)strtol(newvalstr, &endptr, 421 0); 422 newval = &i32val; 423 newsize = sizeof(i32val); 424 break; 425 case CTLTYPE_S64: 426 i64val = strtoimax(newvalstr, &endptr, 0); 427 newval = &i64val; 428 newsize = sizeof(i64val); 429 break; 430 case CTLTYPE_U8: 431 u8val = (uint8_t)strtoul(newvalstr, &endptr, 0); 432 newval = &u8val; 433 newsize = sizeof(u8val); 434 break; 435 case CTLTYPE_U16: 436 u16val = (uint16_t)strtoul(newvalstr, &endptr, 437 0); 438 newval = &u16val; 439 newsize = sizeof(u16val); 440 break; 441 case CTLTYPE_U32: 442 u32val = (uint32_t)strtoul(newvalstr, &endptr, 443 0); 444 newval = &u32val; 445 newsize = sizeof(u32val); 446 break; 447 case CTLTYPE_U64: 448 u64val = strtoumax(newvalstr, &endptr, 0); 449 newval = &u64val; 450 newsize = sizeof(u64val); 451 break; 452 default: 453 /* NOTREACHED */ 454 abort(); 455 } 456 457 if (errno != 0 || endptr == newvalstr || 458 (endptr != NULL && *endptr != '\0')) { 459 warnx("invalid %s '%s'%s", ctl_typename[kind & CTLTYPE], 460 newvalstr, line); 461 return (1); 462 } 463 464 i = show_var(mib, len); 465 if (sysctl(mib, len, 0, 0, newval, newsize) == -1) { 466 if (!i && !bflag) 467 putchar('\n'); 468 switch (errno) { 469 case EOPNOTSUPP: 470 warnx("%s: value is not available%s", 471 string, line); 472 return (1); 473 case ENOTDIR: 474 warnx("%s: specification is incomplete%s", 475 string, line); 476 return (1); 477 case ENOMEM: 478 warnx("%s: type is unknown to this program%s", 479 string, line); 480 return (1); 481 default: 482 warn("%s%s", string, line); 483 return (1); 484 } 485 } 486 if (!bflag) 487 printf(" -> "); 488 i = nflag; 489 nflag = 1; 490 j = show_var(mib, len); 491 if (!j && !bflag) 492 putchar('\n'); 493 nflag = i; 494 } 495 496 return (0); 497 } 498 499 static int 500 parsefile(const char *filename) 501 { 502 FILE *file; 503 char line[BUFSIZ], *p, *pq, *pdq; 504 int warncount = 0, lineno = 0; 505 506 file = fopen(filename, "r"); 507 if (file == NULL) 508 err(EX_NOINPUT, "%s", filename); 509 while (fgets(line, sizeof(line), file) != NULL) { 510 lineno++; 511 p = line; 512 pq = strchr(line, '\''); 513 pdq = strchr(line, '\"'); 514 /* Replace the first # with \0. */ 515 while((p = strchr(p, '#')) != NULL) { 516 if (pq != NULL && p > pq) { 517 if ((p = strchr(pq+1, '\'')) != NULL) 518 *(++p) = '\0'; 519 break; 520 } else if (pdq != NULL && p > pdq) { 521 if ((p = strchr(pdq+1, '\"')) != NULL) 522 *(++p) = '\0'; 523 break; 524 } else if (p == line || *(p-1) != '\\') { 525 *p = '\0'; 526 break; 527 } 528 p++; 529 } 530 /* Trim spaces */ 531 p = line + strlen(line) - 1; 532 while (p >= line && isspace((int)*p)) { 533 *p = '\0'; 534 p--; 535 } 536 p = line; 537 while (isspace((int)*p)) 538 p++; 539 if (*p == '\0') 540 continue; 541 else 542 warncount += parse(p, lineno); 543 } 544 fclose(file); 545 546 return (warncount); 547 } 548 549 /* These functions will dump out various interesting structures. */ 550 551 static int 552 S_clockinfo(size_t l2, void *p) 553 { 554 struct clockinfo *ci = (struct clockinfo*)p; 555 556 if (l2 != sizeof(*ci)) { 557 warnx("S_clockinfo %zu != %zu", l2, sizeof(*ci)); 558 return (1); 559 } 560 printf(hflag ? "{ hz = %'d, tick = %'d, profhz = %'d, stathz = %'d }" : 561 "{ hz = %d, tick = %d, profhz = %d, stathz = %d }", 562 ci->hz, ci->tick, ci->profhz, ci->stathz); 563 return (0); 564 } 565 566 static int 567 S_loadavg(size_t l2, void *p) 568 { 569 struct loadavg *tv = (struct loadavg*)p; 570 571 if (l2 != sizeof(*tv)) { 572 warnx("S_loadavg %zu != %zu", l2, sizeof(*tv)); 573 return (1); 574 } 575 printf(hflag ? "{ %'.2f %'.2f %'.2f }" : "{ %.2f %.2f %.2f }", 576 (double)tv->ldavg[0]/(double)tv->fscale, 577 (double)tv->ldavg[1]/(double)tv->fscale, 578 (double)tv->ldavg[2]/(double)tv->fscale); 579 return (0); 580 } 581 582 static int 583 S_timeval(size_t l2, void *p) 584 { 585 struct timeval *tv = (struct timeval*)p; 586 time_t tv_sec; 587 char *p1, *p2; 588 589 if (l2 != sizeof(*tv)) { 590 warnx("S_timeval %zu != %zu", l2, sizeof(*tv)); 591 return (1); 592 } 593 printf(hflag ? "{ sec = %'jd, usec = %'ld } " : 594 "{ sec = %jd, usec = %ld } ", 595 (intmax_t)tv->tv_sec, tv->tv_usec); 596 tv_sec = tv->tv_sec; 597 p1 = strdup(ctime(&tv_sec)); 598 for (p2=p1; *p2 ; p2++) 599 if (*p2 == '\n') 600 *p2 = '\0'; 601 fputs(p1, stdout); 602 free(p1); 603 return (0); 604 } 605 606 static int 607 S_vmtotal(size_t l2, void *p) 608 { 609 struct vmtotal *v = (struct vmtotal *)p; 610 int pageKilo = getpagesize() / 1024; 611 612 if (l2 != sizeof(*v)) { 613 warnx("S_vmtotal %zu != %zu", l2, sizeof(*v)); 614 return (1); 615 } 616 617 printf( 618 "\nSystem wide totals computed every five seconds:" 619 " (values in kilobytes)\n"); 620 printf("===============================================\n"); 621 printf( 622 "Processes:\t\t(RUNQ: %hd Disk Wait: %hd Page Wait: " 623 "%hd Sleep: %hd)\n", 624 v->t_rq, v->t_dw, v->t_pw, v->t_sl); 625 printf( 626 "Virtual Memory:\t\t(Total: %dK Active: %dK)\n", 627 v->t_vm * pageKilo, v->t_avm * pageKilo); 628 printf("Real Memory:\t\t(Total: %dK Active: %dK)\n", 629 v->t_rm * pageKilo, v->t_arm * pageKilo); 630 printf("Shared Virtual Memory:\t(Total: %dK Active: %dK)\n", 631 v->t_vmshr * pageKilo, v->t_avmshr * pageKilo); 632 printf("Shared Real Memory:\t(Total: %dK Active: %dK)\n", 633 v->t_rmshr * pageKilo, v->t_armshr * pageKilo); 634 printf("Free Memory:\t%dK", v->t_free * pageKilo); 635 636 return (0); 637 } 638 639 #ifdef __amd64__ 640 #define efi_next_descriptor(ptr, size) \ 641 ((struct efi_md *)(((uint8_t *) ptr) + size)) 642 643 static int 644 S_efi_map(size_t l2, void *p) 645 { 646 struct efi_map_header *efihdr; 647 struct efi_md *map; 648 const char *type; 649 size_t efisz; 650 int ndesc, i; 651 652 static const char *types[] = { 653 "Reserved", 654 "LoaderCode", 655 "LoaderData", 656 "BootServicesCode", 657 "BootServicesData", 658 "RuntimeServicesCode", 659 "RuntimeServicesData", 660 "ConventionalMemory", 661 "UnusableMemory", 662 "ACPIReclaimMemory", 663 "ACPIMemoryNVS", 664 "MemoryMappedIO", 665 "MemoryMappedIOPortSpace", 666 "PalCode" 667 }; 668 669 /* 670 * Memory map data provided by UEFI via the GetMemoryMap 671 * Boot Services API. 672 */ 673 if (l2 < sizeof(*efihdr)) { 674 warnx("S_efi_map length less than header"); 675 return (1); 676 } 677 efihdr = p; 678 efisz = (sizeof(struct efi_map_header) + 0xf) & ~0xf; 679 map = (struct efi_md *)((uint8_t *)efihdr + efisz); 680 681 if (efihdr->descriptor_size == 0) 682 return (0); 683 if (l2 != efisz + efihdr->memory_size) { 684 warnx("S_efi_map length mismatch %zu vs %zu", l2, efisz + 685 efihdr->memory_size); 686 return (1); 687 } 688 ndesc = efihdr->memory_size / efihdr->descriptor_size; 689 690 printf("\n%23s %12s %12s %8s %4s", 691 "Type", "Physical", "Virtual", "#Pages", "Attr"); 692 693 for (i = 0; i < ndesc; i++, 694 map = efi_next_descriptor(map, efihdr->descriptor_size)) { 695 if (map->md_type <= EFI_MD_TYPE_PALCODE) 696 type = types[map->md_type]; 697 else 698 type = "<INVALID>"; 699 printf("\n%23s %012lx %12p %08lx ", type, map->md_phys, 700 map->md_virt, map->md_pages); 701 if (map->md_attr & EFI_MD_ATTR_UC) 702 printf("UC "); 703 if (map->md_attr & EFI_MD_ATTR_WC) 704 printf("WC "); 705 if (map->md_attr & EFI_MD_ATTR_WT) 706 printf("WT "); 707 if (map->md_attr & EFI_MD_ATTR_WB) 708 printf("WB "); 709 if (map->md_attr & EFI_MD_ATTR_UCE) 710 printf("UCE "); 711 if (map->md_attr & EFI_MD_ATTR_WP) 712 printf("WP "); 713 if (map->md_attr & EFI_MD_ATTR_RP) 714 printf("RP "); 715 if (map->md_attr & EFI_MD_ATTR_XP) 716 printf("XP "); 717 if (map->md_attr & EFI_MD_ATTR_RT) 718 printf("RUNTIME"); 719 } 720 return (0); 721 } 722 #endif 723 724 #if defined(__amd64__) || defined(__i386__) 725 static int 726 S_bios_smap_xattr(size_t l2, void *p) 727 { 728 struct bios_smap_xattr *smap, *end; 729 730 if (l2 % sizeof(*smap) != 0) { 731 warnx("S_bios_smap_xattr %zu is not a multiple of %zu", l2, 732 sizeof(*smap)); 733 return (1); 734 } 735 736 end = (struct bios_smap_xattr *)((char *)p + l2); 737 for (smap = p; smap < end; smap++) 738 printf("\nSMAP type=%02x, xattr=%02x, base=%016jx, len=%016jx", 739 smap->type, smap->xattr, (uintmax_t)smap->base, 740 (uintmax_t)smap->length); 741 return (0); 742 } 743 #endif 744 745 static int 746 strIKtoi(const char *str, char **endptrp, const char *fmt) 747 { 748 int kelv; 749 float temp; 750 size_t len; 751 const char *p; 752 int prec, i; 753 754 assert(errno == 0); 755 756 len = strlen(str); 757 /* caller already checked this */ 758 assert(len > 0); 759 760 /* 761 * A format of "IK" is in deciKelvin. A format of "IK3" is in 762 * milliKelvin. The single digit following IK is log10 of the 763 * multiplying factor to convert Kelvin into the untis of this sysctl, 764 * or the dividing factor to convert the sysctl value to Kelvin. Numbers 765 * larger than 6 will run into precision issues with 32-bit integers. 766 * Characters that aren't ASCII digits after the 'K' are ignored. No 767 * localization is present because this is an interface from the kernel 768 * to this program (eg not an end-user interface), so isdigit() isn't 769 * used here. 770 */ 771 if (fmt[2] != '\0' && fmt[2] >= '0' && fmt[2] <= '9') 772 prec = fmt[2] - '0'; 773 else 774 prec = 1; 775 p = &str[len - 1]; 776 if (*p == 'C' || *p == 'F' || *p == 'K') { 777 temp = strtof(str, endptrp); 778 if (*endptrp != str && *endptrp == p && errno == 0) { 779 if (*p == 'F') 780 temp = (temp - 32) * 5 / 9; 781 *endptrp = NULL; 782 if (*p != 'K') 783 temp += 273.15; 784 for (i = 0; i < prec; i++) 785 temp *= 10.0; 786 return ((int)(temp + 0.5)); 787 } 788 } else { 789 /* No unit specified -> treat it as a raw number */ 790 kelv = (int)strtol(str, endptrp, 10); 791 if (*endptrp != str && *endptrp == p && errno == 0) { 792 *endptrp = NULL; 793 return (kelv); 794 } 795 } 796 797 errno = ERANGE; 798 return (0); 799 } 800 801 /* 802 * These functions uses a presently undocumented interface to the kernel 803 * to walk the tree and get the type so it can print the value. 804 * This interface is under work and consideration, and should probably 805 * be killed with a big axe by the first person who can find the time. 806 * (be aware though, that the proper interface isn't as obvious as it 807 * may seem, there are various conflicting requirements. 808 */ 809 810 static int 811 name2oid(const char *name, int *oidp) 812 { 813 int oid[2]; 814 int i; 815 size_t j; 816 817 oid[0] = 0; 818 oid[1] = 3; 819 820 j = CTL_MAXNAME * sizeof(int); 821 i = sysctl(oid, 2, oidp, &j, name, strlen(name)); 822 if (i < 0) 823 return (i); 824 j /= sizeof(int); 825 return (j); 826 } 827 828 static int 829 oidfmt(int *oid, int len, char *fmt, u_int *kind) 830 { 831 int qoid[CTL_MAXNAME+2]; 832 u_char buf[BUFSIZ]; 833 int i; 834 size_t j; 835 836 qoid[0] = 0; 837 qoid[1] = 4; 838 memcpy(qoid + 2, oid, len * sizeof(int)); 839 840 j = sizeof(buf); 841 i = sysctl(qoid, len + 2, buf, &j, 0, 0); 842 if (i) 843 err(1, "sysctl fmt %d %zu %d", i, j, errno); 844 845 if (kind) 846 *kind = *(u_int *)buf; 847 848 if (fmt) 849 strcpy(fmt, (char *)(buf + sizeof(u_int))); 850 return (0); 851 } 852 853 /* 854 * This formats and outputs the value of one variable 855 * 856 * Returns zero if anything was actually output. 857 * Returns one if didn't know what to do with this. 858 * Return minus one if we had errors. 859 */ 860 static int 861 show_var(int *oid, int nlen) 862 { 863 u_char buf[BUFSIZ], *val, *oval, *p; 864 char name[BUFSIZ], fmt[BUFSIZ]; 865 const char *sep, *sep1, *prntype; 866 int qoid[CTL_MAXNAME+2]; 867 uintmax_t umv; 868 intmax_t mv; 869 int i, hexlen, sign, ctltype; 870 size_t intlen; 871 size_t j, len; 872 u_int kind; 873 float base; 874 int (*func)(size_t, void *); 875 int prec; 876 877 /* Silence GCC. */ 878 umv = mv = intlen = 0; 879 880 bzero(buf, BUFSIZ); 881 bzero(fmt, BUFSIZ); 882 bzero(name, BUFSIZ); 883 qoid[0] = 0; 884 memcpy(qoid + 2, oid, nlen * sizeof(int)); 885 886 qoid[1] = 1; 887 j = sizeof(name); 888 i = sysctl(qoid, nlen + 2, name, &j, 0, 0); 889 if (i || !j) 890 err(1, "sysctl name %d %zu %d", i, j, errno); 891 892 oidfmt(oid, nlen, fmt, &kind); 893 /* if Wflag then only list sysctls that are writeable and not stats. */ 894 if (Wflag && ((kind & CTLFLAG_WR) == 0 || (kind & CTLFLAG_STATS) != 0)) 895 return 1; 896 897 /* if Tflag then only list sysctls that are tuneables. */ 898 if (Tflag && (kind & CTLFLAG_TUN) == 0) 899 return 1; 900 901 if (Nflag) { 902 printf("%s", name); 903 return (0); 904 } 905 906 if (eflag) 907 sep = "="; 908 else 909 sep = ": "; 910 911 ctltype = (kind & CTLTYPE); 912 if (tflag || dflag) { 913 if (!nflag) 914 printf("%s%s", name, sep); 915 if (ctl_typename[ctltype] != NULL) 916 prntype = ctl_typename[ctltype]; 917 else 918 prntype = "unknown"; 919 if (tflag && dflag) 920 printf("%s%s", prntype, sep); 921 else if (tflag) { 922 printf("%s", prntype); 923 return (0); 924 } 925 qoid[1] = 5; 926 j = sizeof(buf); 927 i = sysctl(qoid, nlen + 2, buf, &j, 0, 0); 928 printf("%s", buf); 929 return (0); 930 } 931 /* find an estimate of how much we need for this var */ 932 if (Bflag) 933 j = Bflag; 934 else { 935 j = 0; 936 i = sysctl(oid, nlen, 0, &j, 0, 0); 937 j += j; /* we want to be sure :-) */ 938 } 939 940 val = oval = malloc(j + 1); 941 if (val == NULL) { 942 warnx("malloc failed"); 943 return (1); 944 } 945 len = j; 946 i = sysctl(oid, nlen, val, &len, 0, 0); 947 if (i != 0 || (len == 0 && ctltype != CTLTYPE_STRING)) { 948 free(oval); 949 return (1); 950 } 951 952 if (bflag) { 953 fwrite(val, 1, len, stdout); 954 free(oval); 955 return (0); 956 } 957 val[len] = '\0'; 958 p = val; 959 sign = ctl_sign[ctltype]; 960 intlen = ctl_size[ctltype]; 961 962 switch (ctltype) { 963 case CTLTYPE_STRING: 964 if (!nflag) 965 printf("%s%s", name, sep); 966 printf("%.*s", (int)len, p); 967 free(oval); 968 return (0); 969 970 case CTLTYPE_INT: 971 case CTLTYPE_UINT: 972 case CTLTYPE_LONG: 973 case CTLTYPE_ULONG: 974 case CTLTYPE_S8: 975 case CTLTYPE_S16: 976 case CTLTYPE_S32: 977 case CTLTYPE_S64: 978 case CTLTYPE_U8: 979 case CTLTYPE_U16: 980 case CTLTYPE_U32: 981 case CTLTYPE_U64: 982 if (!nflag) 983 printf("%s%s", name, sep); 984 hexlen = 2 + (intlen * CHAR_BIT + 3) / 4; 985 sep1 = ""; 986 while (len >= intlen) { 987 switch (kind & CTLTYPE) { 988 case CTLTYPE_INT: 989 case CTLTYPE_UINT: 990 umv = *(u_int *)p; 991 mv = *(int *)p; 992 break; 993 case CTLTYPE_LONG: 994 case CTLTYPE_ULONG: 995 umv = *(u_long *)p; 996 mv = *(long *)p; 997 break; 998 case CTLTYPE_S8: 999 case CTLTYPE_U8: 1000 umv = *(uint8_t *)p; 1001 mv = *(int8_t *)p; 1002 break; 1003 case CTLTYPE_S16: 1004 case CTLTYPE_U16: 1005 umv = *(uint16_t *)p; 1006 mv = *(int16_t *)p; 1007 break; 1008 case CTLTYPE_S32: 1009 case CTLTYPE_U32: 1010 umv = *(uint32_t *)p; 1011 mv = *(int32_t *)p; 1012 break; 1013 case CTLTYPE_S64: 1014 case CTLTYPE_U64: 1015 umv = *(uint64_t *)p; 1016 mv = *(int64_t *)p; 1017 break; 1018 } 1019 fputs(sep1, stdout); 1020 if (xflag) 1021 printf("%#0*jx", hexlen, umv); 1022 else if (!sign) 1023 printf(hflag ? "%'ju" : "%ju", umv); 1024 else if (fmt[1] == 'K') { 1025 if (mv < 0) 1026 printf("%jd", mv); 1027 else { 1028 /* 1029 * See strIKtoi for details on fmt. 1030 */ 1031 prec = 1; 1032 if (fmt[2] != '\0') 1033 prec = fmt[2] - '0'; 1034 base = 1.0; 1035 for (int i = 0; i < prec; i++) 1036 base *= 10.0; 1037 printf("%.*fC", prec, 1038 (float)mv / base - 273.15); 1039 } 1040 } else 1041 printf(hflag ? "%'jd" : "%jd", mv); 1042 sep1 = " "; 1043 len -= intlen; 1044 p += intlen; 1045 } 1046 free(oval); 1047 return (0); 1048 1049 case CTLTYPE_OPAQUE: 1050 i = 0; 1051 if (strcmp(fmt, "S,clockinfo") == 0) 1052 func = S_clockinfo; 1053 else if (strcmp(fmt, "S,timeval") == 0) 1054 func = S_timeval; 1055 else if (strcmp(fmt, "S,loadavg") == 0) 1056 func = S_loadavg; 1057 else if (strcmp(fmt, "S,vmtotal") == 0) 1058 func = S_vmtotal; 1059 #ifdef __amd64__ 1060 else if (strcmp(fmt, "S,efi_map_header") == 0) 1061 func = S_efi_map; 1062 #endif 1063 #if defined(__amd64__) || defined(__i386__) 1064 else if (strcmp(fmt, "S,bios_smap_xattr") == 0) 1065 func = S_bios_smap_xattr; 1066 #endif 1067 else 1068 func = NULL; 1069 if (func) { 1070 if (!nflag) 1071 printf("%s%s", name, sep); 1072 i = (*func)(len, p); 1073 free(oval); 1074 return (i); 1075 } 1076 /* FALLTHROUGH */ 1077 default: 1078 if (!oflag && !xflag) { 1079 free(oval); 1080 return (1); 1081 } 1082 if (!nflag) 1083 printf("%s%s", name, sep); 1084 printf("Format:%s Length:%zu Dump:0x", fmt, len); 1085 while (len-- && (xflag || p < val + 16)) 1086 printf("%02x", *p++); 1087 if (!xflag && len > 16) 1088 printf("..."); 1089 free(oval); 1090 return (0); 1091 } 1092 free(oval); 1093 return (1); 1094 } 1095 1096 static int 1097 sysctl_all(int *oid, int len) 1098 { 1099 int name1[22], name2[22]; 1100 int i, j; 1101 size_t l1, l2; 1102 1103 name1[0] = 0; 1104 name1[1] = 2; 1105 l1 = 2; 1106 if (len) { 1107 memcpy(name1+2, oid, len * sizeof(int)); 1108 l1 += len; 1109 } else { 1110 name1[2] = 1; 1111 l1++; 1112 } 1113 for (;;) { 1114 l2 = sizeof(name2); 1115 j = sysctl(name1, l1, name2, &l2, 0, 0); 1116 if (j < 0) { 1117 if (errno == ENOENT) 1118 return (0); 1119 else 1120 err(1, "sysctl(getnext) %d %zu", j, l2); 1121 } 1122 1123 l2 /= sizeof(int); 1124 1125 if (len < 0 || l2 < (unsigned int)len) 1126 return (0); 1127 1128 for (i = 0; i < len; i++) 1129 if (name2[i] != oid[i]) 1130 return (0); 1131 1132 i = show_var(name2, l2); 1133 if (!i && !bflag) 1134 putchar('\n'); 1135 1136 memcpy(name1+2, name2, l2 * sizeof(int)); 1137 l1 = 2 + l2; 1138 } 1139 } 1140