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