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 #ifndef lint 33 static const char copyright[] = 34 "@(#) Copyright (c) 1993\n\ 35 The Regents of the University of California. All rights reserved.\n"; 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "@(#)from: sysctl.c 8.1 (Berkeley) 6/6/93"; 41 #endif 42 static const char rcsid[] = 43 "$FreeBSD$"; 44 #endif /* not lint */ 45 46 #include <sys/param.h> 47 #include <sys/time.h> 48 #include <sys/resource.h> 49 #include <sys/stat.h> 50 #include <sys/sysctl.h> 51 #include <sys/vmmeter.h> 52 53 #ifdef __amd64__ 54 #include <sys/efi.h> 55 #include <machine/metadata.h> 56 #endif 57 58 #if defined(__amd64__) || defined(__i386__) 59 #include <machine/pc/bios.h> 60 #endif 61 62 #include <assert.h> 63 #include <ctype.h> 64 #include <err.h> 65 #include <errno.h> 66 #include <inttypes.h> 67 #include <locale.h> 68 #include <stdio.h> 69 #include <stdlib.h> 70 #include <string.h> 71 #include <sysexits.h> 72 #include <unistd.h> 73 74 static const char *conffile; 75 76 static int aflag, bflag, Bflag, dflag, eflag, hflag, iflag; 77 static int Nflag, nflag, oflag, qflag, tflag, Tflag, Wflag, xflag; 78 79 static int oidfmt(int *, int, char *, u_int *); 80 static int parsefile(const char *); 81 static int parse(const char *, int); 82 static int show_var(int *, int); 83 static int sysctl_all(int *oid, int len); 84 static int name2oid(const char *, int *); 85 86 static int strIKtoi(const char *, char **, const char *); 87 88 static int ctl_sign[CTLTYPE+1] = { 89 [CTLTYPE_INT] = 1, 90 [CTLTYPE_LONG] = 1, 91 [CTLTYPE_S8] = 1, 92 [CTLTYPE_S16] = 1, 93 [CTLTYPE_S32] = 1, 94 [CTLTYPE_S64] = 1, 95 }; 96 97 static int ctl_size[CTLTYPE+1] = { 98 [CTLTYPE_INT] = sizeof(int), 99 [CTLTYPE_UINT] = sizeof(u_int), 100 [CTLTYPE_LONG] = sizeof(long), 101 [CTLTYPE_ULONG] = sizeof(u_long), 102 [CTLTYPE_S8] = sizeof(int8_t), 103 [CTLTYPE_S16] = sizeof(int16_t), 104 [CTLTYPE_S32] = sizeof(int32_t), 105 [CTLTYPE_S64] = sizeof(int64_t), 106 [CTLTYPE_U8] = sizeof(uint8_t), 107 [CTLTYPE_U16] = sizeof(uint16_t), 108 [CTLTYPE_U32] = sizeof(uint32_t), 109 [CTLTYPE_U64] = sizeof(uint64_t), 110 }; 111 112 static const char *ctl_typename[CTLTYPE+1] = { 113 [CTLTYPE_INT] = "integer", 114 [CTLTYPE_UINT] = "unsigned integer", 115 [CTLTYPE_LONG] = "long integer", 116 [CTLTYPE_ULONG] = "unsigned long", 117 [CTLTYPE_U8] = "uint8_t", 118 [CTLTYPE_U16] = "uint16_t", 119 [CTLTYPE_U32] = "uint32_t", 120 [CTLTYPE_U64] = "uint64_t", 121 [CTLTYPE_S8] = "int8_t", 122 [CTLTYPE_S16] = "int16_t", 123 [CTLTYPE_S32] = "int32_t", 124 [CTLTYPE_S64] = "int64_t", 125 [CTLTYPE_NODE] = "node", 126 [CTLTYPE_STRING] = "string", 127 [CTLTYPE_OPAQUE] = "opaque", 128 }; 129 130 static void 131 usage(void) 132 { 133 134 (void)fprintf(stderr, "%s\n%s\n", 135 "usage: sysctl [-bdehiNnoqTtWx] [ -B <bufsize> ] [-f filename] name[=value] ...", 136 " sysctl [-bdehNnoqTtWx] [ -B <bufsize> ] -a"); 137 exit(1); 138 } 139 140 int 141 main(int argc, char **argv) 142 { 143 int ch; 144 int warncount = 0; 145 146 setlocale(LC_NUMERIC, ""); 147 setbuf(stdout,0); 148 setbuf(stderr,0); 149 150 while ((ch = getopt(argc, argv, "AabB:def:hiNnoqtTwWxX")) != -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 = 1; 161 break; 162 case 'B': 163 Bflag = strtol(optarg, NULL, 0); 164 break; 165 case 'd': 166 dflag = 1; 167 break; 168 case 'e': 169 eflag = 1; 170 break; 171 case 'f': 172 conffile = optarg; 173 break; 174 case 'h': 175 hflag = 1; 176 break; 177 case 'i': 178 iflag = 1; 179 break; 180 case 'N': 181 Nflag = 1; 182 break; 183 case 'n': 184 nflag = 1; 185 break; 186 case 'o': 187 oflag = 1; 188 break; 189 case 'q': 190 qflag = 1; 191 break; 192 case 't': 193 tflag = 1; 194 break; 195 case 'T': 196 Tflag = 1; 197 break; 198 case 'w': 199 /* compatibility */ 200 /* ignored */ 201 break; 202 case 'W': 203 Wflag = 1; 204 break; 205 case 'X': 206 /* compatibility */ 207 aflag = xflag = 1; 208 break; 209 case 'x': 210 xflag = 1; 211 break; 212 default: 213 usage(); 214 } 215 } 216 argc -= optind; 217 argv += optind; 218 219 if (Nflag && nflag) 220 usage(); 221 if (aflag && argc == 0) 222 exit(sysctl_all(0, 0)); 223 if (argc == 0 && conffile == NULL) 224 usage(); 225 226 warncount = 0; 227 if (conffile != NULL) 228 warncount += parsefile(conffile); 229 230 while (argc-- > 0) 231 warncount += parse(*argv++, 0); 232 233 return (warncount); 234 } 235 236 /* 237 * Parse a name into a MIB entry. 238 * Lookup and print out the MIB entry if it exists. 239 * Set a new value if requested. 240 */ 241 static int 242 parse(const char *string, int lineno) 243 { 244 int len, i, j; 245 const void *newval; 246 const char *newvalstr = NULL; 247 int8_t i8val; 248 uint8_t u8val; 249 int16_t i16val; 250 uint16_t u16val; 251 int32_t i32val; 252 uint32_t u32val; 253 int intval; 254 unsigned int uintval; 255 long longval; 256 unsigned long ulongval; 257 size_t newsize = Bflag; 258 int64_t i64val; 259 uint64_t u64val; 260 int mib[CTL_MAXNAME]; 261 char *cp, *bufp, buf[BUFSIZ], *endptr = NULL, fmt[BUFSIZ], line[BUFSIZ]; 262 u_int kind; 263 264 if (lineno) 265 snprintf(line, sizeof(line), " at line %d", lineno); 266 else 267 line[0] = '\0'; 268 269 cp = buf; 270 if (snprintf(buf, BUFSIZ, "%s", string) >= BUFSIZ) { 271 warnx("oid too long: '%s'%s", string, line); 272 return (1); 273 } 274 bufp = strsep(&cp, "=:"); 275 if (cp != NULL) { 276 /* Tflag just lists tunables, do not allow assignment */ 277 if (Tflag || Wflag) { 278 warnx("Can't set variables when using -T or -W"); 279 usage(); 280 } 281 while (isspace(*cp)) 282 cp++; 283 /* Strip a pair of " or ' if any. */ 284 switch (*cp) { 285 case '\"': 286 case '\'': 287 if (cp[strlen(cp) - 1] == *cp) 288 cp[strlen(cp) - 1] = '\0'; 289 cp++; 290 } 291 newvalstr = cp; 292 newsize = strlen(cp); 293 } 294 /* Trim spaces */ 295 cp = bufp + strlen(bufp) - 1; 296 while (cp >= bufp && isspace((int)*cp)) { 297 *cp = '\0'; 298 cp--; 299 } 300 len = name2oid(bufp, mib); 301 302 if (len < 0) { 303 if (iflag) 304 return (0); 305 if (qflag) 306 return (1); 307 else { 308 if (errno == ENOENT) { 309 warnx("unknown oid '%s'%s", bufp, line); 310 } else { 311 warn("unknown oid '%s'%s", bufp, line); 312 } 313 return (1); 314 } 315 } 316 317 if (oidfmt(mib, len, fmt, &kind)) { 318 warn("couldn't find format of oid '%s'%s", bufp, line); 319 if (iflag) 320 return (1); 321 else 322 exit(1); 323 } 324 325 if (newvalstr == NULL || dflag) { 326 if ((kind & CTLTYPE) == CTLTYPE_NODE) { 327 if (dflag) { 328 i = show_var(mib, len); 329 if (!i && !bflag) 330 putchar('\n'); 331 } 332 sysctl_all(mib, len); 333 } else { 334 i = show_var(mib, len); 335 if (!i && !bflag) 336 putchar('\n'); 337 } 338 } else { 339 if ((kind & CTLTYPE) == CTLTYPE_NODE) { 340 warnx("oid '%s' isn't a leaf node%s", bufp, line); 341 return (1); 342 } 343 344 if (!(kind & CTLFLAG_WR)) { 345 if (kind & CTLFLAG_TUN) { 346 warnx("oid '%s' is a read only tunable%s", bufp, line); 347 warnx("Tunable values are set in /boot/loader.conf"); 348 } else 349 warnx("oid '%s' is read only%s", bufp, line); 350 return (1); 351 } 352 353 switch (kind & CTLTYPE) { 354 case CTLTYPE_INT: 355 case CTLTYPE_UINT: 356 case CTLTYPE_LONG: 357 case CTLTYPE_ULONG: 358 case CTLTYPE_S8: 359 case CTLTYPE_S16: 360 case CTLTYPE_S32: 361 case CTLTYPE_S64: 362 case CTLTYPE_U8: 363 case CTLTYPE_U16: 364 case CTLTYPE_U32: 365 case CTLTYPE_U64: 366 if (strlen(newvalstr) == 0) { 367 warnx("empty numeric value"); 368 return (1); 369 } 370 /* FALLTHROUGH */ 371 case CTLTYPE_STRING: 372 break; 373 default: 374 warnx("oid '%s' is type %d," 375 " cannot set that%s", bufp, 376 kind & CTLTYPE, line); 377 return (1); 378 } 379 380 errno = 0; 381 382 switch (kind & CTLTYPE) { 383 case CTLTYPE_INT: 384 if (strncmp(fmt, "IK", 2) == 0) 385 intval = strIKtoi(newvalstr, &endptr, fmt); 386 else 387 intval = (int)strtol(newvalstr, &endptr, 388 0); 389 newval = &intval; 390 newsize = sizeof(intval); 391 break; 392 case CTLTYPE_UINT: 393 uintval = (int) strtoul(newvalstr, &endptr, 0); 394 newval = &uintval; 395 newsize = sizeof(uintval); 396 break; 397 case CTLTYPE_LONG: 398 longval = strtol(newvalstr, &endptr, 0); 399 newval = &longval; 400 newsize = sizeof(longval); 401 break; 402 case CTLTYPE_ULONG: 403 ulongval = strtoul(newvalstr, &endptr, 0); 404 newval = &ulongval; 405 newsize = sizeof(ulongval); 406 break; 407 case CTLTYPE_STRING: 408 newval = newvalstr; 409 break; 410 case CTLTYPE_S8: 411 i8val = (int8_t)strtol(newvalstr, &endptr, 0); 412 newval = &i8val; 413 newsize = sizeof(i8val); 414 break; 415 case CTLTYPE_S16: 416 i16val = (int16_t)strtol(newvalstr, &endptr, 417 0); 418 newval = &i16val; 419 newsize = sizeof(i16val); 420 break; 421 case CTLTYPE_S32: 422 i32val = (int32_t)strtol(newvalstr, &endptr, 423 0); 424 newval = &i32val; 425 newsize = sizeof(i32val); 426 break; 427 case CTLTYPE_S64: 428 i64val = strtoimax(newvalstr, &endptr, 0); 429 newval = &i64val; 430 newsize = sizeof(i64val); 431 break; 432 case CTLTYPE_U8: 433 u8val = (uint8_t)strtoul(newvalstr, &endptr, 0); 434 newval = &u8val; 435 newsize = sizeof(u8val); 436 break; 437 case CTLTYPE_U16: 438 u16val = (uint16_t)strtoul(newvalstr, &endptr, 439 0); 440 newval = &u16val; 441 newsize = sizeof(u16val); 442 break; 443 case CTLTYPE_U32: 444 u32val = (uint32_t)strtoul(newvalstr, &endptr, 445 0); 446 newval = &u32val; 447 newsize = sizeof(u32val); 448 break; 449 case CTLTYPE_U64: 450 u64val = strtoumax(newvalstr, &endptr, 0); 451 newval = &u64val; 452 newsize = sizeof(u64val); 453 break; 454 default: 455 /* NOTREACHED */ 456 abort(); 457 } 458 459 if (errno != 0 || endptr == newvalstr || 460 (endptr != NULL && *endptr != '\0')) { 461 warnx("invalid %s '%s'%s", ctl_typename[kind & CTLTYPE], 462 newvalstr, line); 463 return (1); 464 } 465 466 i = show_var(mib, len); 467 if (sysctl(mib, len, 0, 0, newval, newsize) == -1) { 468 if (!i && !bflag) 469 putchar('\n'); 470 switch (errno) { 471 case EOPNOTSUPP: 472 warnx("%s: value is not available%s", 473 string, line); 474 return (1); 475 case ENOTDIR: 476 warnx("%s: specification is incomplete%s", 477 string, line); 478 return (1); 479 case ENOMEM: 480 warnx("%s: type is unknown to this program%s", 481 string, line); 482 return (1); 483 default: 484 warn("%s%s", string, line); 485 return (1); 486 } 487 } 488 if (!bflag) 489 printf(" -> "); 490 i = nflag; 491 nflag = 1; 492 j = show_var(mib, len); 493 if (!j && !bflag) 494 putchar('\n'); 495 nflag = i; 496 } 497 498 return (0); 499 } 500 501 static int 502 parsefile(const char *filename) 503 { 504 FILE *file; 505 char line[BUFSIZ], *p, *pq, *pdq; 506 int warncount = 0, lineno = 0; 507 508 file = fopen(filename, "r"); 509 if (file == NULL) 510 err(EX_NOINPUT, "%s", filename); 511 while (fgets(line, sizeof(line), file) != NULL) { 512 lineno++; 513 p = line; 514 pq = strchr(line, '\''); 515 pdq = strchr(line, '\"'); 516 /* Replace the first # with \0. */ 517 while((p = strchr(p, '#')) != NULL) { 518 if (pq != NULL && p > pq) { 519 if ((p = strchr(pq+1, '\'')) != NULL) 520 *(++p) = '\0'; 521 break; 522 } else if (pdq != NULL && p > pdq) { 523 if ((p = strchr(pdq+1, '\"')) != NULL) 524 *(++p) = '\0'; 525 break; 526 } else if (p == line || *(p-1) != '\\') { 527 *p = '\0'; 528 break; 529 } 530 p++; 531 } 532 /* Trim spaces */ 533 p = line + strlen(line) - 1; 534 while (p >= line && isspace((int)*p)) { 535 *p = '\0'; 536 p--; 537 } 538 p = line; 539 while (isspace((int)*p)) 540 p++; 541 if (*p == '\0') 542 continue; 543 else 544 warncount += parse(p, lineno); 545 } 546 fclose(file); 547 548 return (warncount); 549 } 550 551 /* These functions will dump out various interesting structures. */ 552 553 static int 554 S_clockinfo(size_t l2, void *p) 555 { 556 struct clockinfo *ci = (struct clockinfo*)p; 557 558 if (l2 != sizeof(*ci)) { 559 warnx("S_clockinfo %zu != %zu", l2, sizeof(*ci)); 560 return (1); 561 } 562 printf(hflag ? "{ hz = %'d, tick = %'d, profhz = %'d, stathz = %'d }" : 563 "{ hz = %d, tick = %d, profhz = %d, stathz = %d }", 564 ci->hz, ci->tick, ci->profhz, ci->stathz); 565 return (0); 566 } 567 568 static int 569 S_loadavg(size_t l2, void *p) 570 { 571 struct loadavg *tv = (struct loadavg*)p; 572 573 if (l2 != sizeof(*tv)) { 574 warnx("S_loadavg %zu != %zu", l2, sizeof(*tv)); 575 return (1); 576 } 577 printf(hflag ? "{ %'.2f %'.2f %'.2f }" : "{ %.2f %.2f %.2f }", 578 (double)tv->ldavg[0]/(double)tv->fscale, 579 (double)tv->ldavg[1]/(double)tv->fscale, 580 (double)tv->ldavg[2]/(double)tv->fscale); 581 return (0); 582 } 583 584 static int 585 S_timeval(size_t l2, void *p) 586 { 587 struct timeval *tv = (struct timeval*)p; 588 time_t tv_sec; 589 char *p1, *p2; 590 591 if (l2 != sizeof(*tv)) { 592 warnx("S_timeval %zu != %zu", l2, sizeof(*tv)); 593 return (1); 594 } 595 printf(hflag ? "{ sec = %'jd, usec = %'ld } " : 596 "{ sec = %jd, usec = %ld } ", 597 (intmax_t)tv->tv_sec, tv->tv_usec); 598 tv_sec = tv->tv_sec; 599 p1 = strdup(ctime(&tv_sec)); 600 for (p2=p1; *p2 ; p2++) 601 if (*p2 == '\n') 602 *p2 = '\0'; 603 fputs(p1, stdout); 604 free(p1); 605 return (0); 606 } 607 608 static int 609 S_vmtotal(size_t l2, void *p) 610 { 611 struct vmtotal *v; 612 int pageKilo; 613 614 if (l2 != sizeof(*v)) { 615 warnx("S_vmtotal %zu != %zu", l2, sizeof(*v)); 616 return (1); 617 } 618 619 v = p; 620 pageKilo = getpagesize() / 1024; 621 622 #define pg2k(a) ((uintmax_t)(a) * pageKilo) 623 printf("\nSystem wide totals computed every five seconds:" 624 " (values in kilobytes)\n"); 625 printf("===============================================\n"); 626 printf("Processes:\t\t(RUNQ: %d Disk Wait: %d Page Wait: " 627 "%d Sleep: %d)\n", 628 v->t_rq, v->t_dw, v->t_pw, v->t_sl); 629 printf("Virtual Memory:\t\t(Total: %juK Active: %juK)\n", 630 pg2k(v->t_vm), pg2k(v->t_avm)); 631 printf("Real Memory:\t\t(Total: %juK Active: %juK)\n", 632 pg2k(v->t_rm), pg2k(v->t_arm)); 633 printf("Shared Virtual Memory:\t(Total: %juK Active: %juK)\n", 634 pg2k(v->t_vmshr), pg2k(v->t_avmshr)); 635 printf("Shared Real Memory:\t(Total: %juK Active: %juK)\n", 636 pg2k(v->t_rmshr), pg2k(v->t_armshr)); 637 printf("Free Memory:\t%juK", pg2k(v->t_free)); 638 return (0); 639 } 640 641 #ifdef __amd64__ 642 static int 643 S_efi_map(size_t l2, void *p) 644 { 645 struct efi_map_header *efihdr; 646 struct efi_md *map; 647 const char *type; 648 size_t efisz; 649 int ndesc, i; 650 651 static const char *types[] = { 652 "Reserved", 653 "LoaderCode", 654 "LoaderData", 655 "BootServicesCode", 656 "BootServicesData", 657 "RuntimeServicesCode", 658 "RuntimeServicesData", 659 "ConventionalMemory", 660 "UnusableMemory", 661 "ACPIReclaimMemory", 662 "ACPIMemoryNVS", 663 "MemoryMappedIO", 664 "MemoryMappedIOPortSpace", 665 "PalCode" 666 }; 667 668 /* 669 * Memory map data provided by UEFI via the GetMemoryMap 670 * Boot Services API. 671 */ 672 if (l2 < sizeof(*efihdr)) { 673 warnx("S_efi_map length less than header"); 674 return (1); 675 } 676 efihdr = p; 677 efisz = (sizeof(struct efi_map_header) + 0xf) & ~0xf; 678 map = (struct efi_md *)((uint8_t *)efihdr + efisz); 679 680 if (efihdr->descriptor_size == 0) 681 return (0); 682 if (l2 != efisz + efihdr->memory_size) { 683 warnx("S_efi_map length mismatch %zu vs %zu", l2, efisz + 684 efihdr->memory_size); 685 return (1); 686 } 687 ndesc = efihdr->memory_size / efihdr->descriptor_size; 688 689 printf("\n%23s %12s %12s %8s %4s", 690 "Type", "Physical", "Virtual", "#Pages", "Attr"); 691 692 for (i = 0; i < ndesc; i++, 693 map = efi_next_descriptor(map, efihdr->descriptor_size)) { 694 if (map->md_type <= EFI_MD_TYPE_PALCODE) 695 type = types[map->md_type]; 696 else 697 type = "<INVALID>"; 698 printf("\n%23s %012jx %12p %08jx ", type, 699 (uintmax_t)map->md_phys, map->md_virt, 700 (uintmax_t)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 } 931 932 /* don't fetch opaques that we don't know how to print */ 933 if (ctltype == CTLTYPE_OPAQUE) { 934 if (strcmp(fmt, "S,clockinfo") == 0) 935 func = S_clockinfo; 936 else if (strcmp(fmt, "S,timeval") == 0) 937 func = S_timeval; 938 else if (strcmp(fmt, "S,loadavg") == 0) 939 func = S_loadavg; 940 else if (strcmp(fmt, "S,vmtotal") == 0) 941 func = S_vmtotal; 942 #ifdef __amd64__ 943 else if (strcmp(fmt, "S,efi_map_header") == 0) 944 func = S_efi_map; 945 #endif 946 #if defined(__amd64__) || defined(__i386__) 947 else if (strcmp(fmt, "S,bios_smap_xattr") == 0) 948 func = S_bios_smap_xattr; 949 #endif 950 else { 951 func = NULL; 952 if (!bflag && !oflag && !xflag) 953 return (1); 954 } 955 } 956 957 /* find an estimate of how much we need for this var */ 958 if (Bflag) 959 j = Bflag; 960 else { 961 j = 0; 962 i = sysctl(oid, nlen, 0, &j, 0, 0); 963 j += j; /* we want to be sure :-) */ 964 } 965 966 val = oval = malloc(j + 1); 967 if (val == NULL) { 968 warnx("malloc failed"); 969 return (1); 970 } 971 len = j; 972 i = sysctl(oid, nlen, val, &len, 0, 0); 973 if (i != 0 || (len == 0 && ctltype != CTLTYPE_STRING)) { 974 free(oval); 975 return (1); 976 } 977 978 if (bflag) { 979 fwrite(val, 1, len, stdout); 980 free(oval); 981 return (0); 982 } 983 val[len] = '\0'; 984 p = val; 985 sign = ctl_sign[ctltype]; 986 intlen = ctl_size[ctltype]; 987 988 switch (ctltype) { 989 case CTLTYPE_STRING: 990 if (!nflag) 991 printf("%s%s", name, sep); 992 printf("%.*s", (int)len, p); 993 free(oval); 994 return (0); 995 996 case CTLTYPE_INT: 997 case CTLTYPE_UINT: 998 case CTLTYPE_LONG: 999 case CTLTYPE_ULONG: 1000 case CTLTYPE_S8: 1001 case CTLTYPE_S16: 1002 case CTLTYPE_S32: 1003 case CTLTYPE_S64: 1004 case CTLTYPE_U8: 1005 case CTLTYPE_U16: 1006 case CTLTYPE_U32: 1007 case CTLTYPE_U64: 1008 if (!nflag) 1009 printf("%s%s", name, sep); 1010 hexlen = 2 + (intlen * CHAR_BIT + 3) / 4; 1011 sep1 = ""; 1012 while (len >= intlen) { 1013 switch (kind & CTLTYPE) { 1014 case CTLTYPE_INT: 1015 case CTLTYPE_UINT: 1016 umv = *(u_int *)p; 1017 mv = *(int *)p; 1018 break; 1019 case CTLTYPE_LONG: 1020 case CTLTYPE_ULONG: 1021 umv = *(u_long *)p; 1022 mv = *(long *)p; 1023 break; 1024 case CTLTYPE_S8: 1025 case CTLTYPE_U8: 1026 umv = *(uint8_t *)p; 1027 mv = *(int8_t *)p; 1028 break; 1029 case CTLTYPE_S16: 1030 case CTLTYPE_U16: 1031 umv = *(uint16_t *)p; 1032 mv = *(int16_t *)p; 1033 break; 1034 case CTLTYPE_S32: 1035 case CTLTYPE_U32: 1036 umv = *(uint32_t *)p; 1037 mv = *(int32_t *)p; 1038 break; 1039 case CTLTYPE_S64: 1040 case CTLTYPE_U64: 1041 umv = *(uint64_t *)p; 1042 mv = *(int64_t *)p; 1043 break; 1044 } 1045 fputs(sep1, stdout); 1046 if (xflag) 1047 printf("%#0*jx", hexlen, umv); 1048 else if (!sign) 1049 printf(hflag ? "%'ju" : "%ju", umv); 1050 else if (fmt[1] == 'K') { 1051 if (mv < 0) 1052 printf("%jd", mv); 1053 else { 1054 /* 1055 * See strIKtoi for details on fmt. 1056 */ 1057 prec = 1; 1058 if (fmt[2] != '\0') 1059 prec = fmt[2] - '0'; 1060 base = 1.0; 1061 for (int i = 0; i < prec; i++) 1062 base *= 10.0; 1063 printf("%.*fC", prec, 1064 (float)mv / base - 273.15); 1065 } 1066 } else 1067 printf(hflag ? "%'jd" : "%jd", mv); 1068 sep1 = " "; 1069 len -= intlen; 1070 p += intlen; 1071 } 1072 free(oval); 1073 return (0); 1074 1075 case CTLTYPE_OPAQUE: 1076 i = 0; 1077 if (func) { 1078 if (!nflag) 1079 printf("%s%s", name, sep); 1080 i = (*func)(len, p); 1081 free(oval); 1082 return (i); 1083 } 1084 /* FALLTHROUGH */ 1085 default: 1086 if (!oflag && !xflag) { 1087 free(oval); 1088 return (1); 1089 } 1090 if (!nflag) 1091 printf("%s%s", name, sep); 1092 printf("Format:%s Length:%zu Dump:0x", fmt, len); 1093 while (len-- && (xflag || p < val + 16)) 1094 printf("%02x", *p++); 1095 if (!xflag && len > 16) 1096 printf("..."); 1097 free(oval); 1098 return (0); 1099 } 1100 free(oval); 1101 return (1); 1102 } 1103 1104 static int 1105 sysctl_all(int *oid, int len) 1106 { 1107 int name1[22], name2[22]; 1108 int i, j; 1109 size_t l1, l2; 1110 1111 name1[0] = 0; 1112 name1[1] = 2; 1113 l1 = 2; 1114 if (len) { 1115 memcpy(name1+2, oid, len * sizeof(int)); 1116 l1 += len; 1117 } else { 1118 name1[2] = 1; 1119 l1++; 1120 } 1121 for (;;) { 1122 l2 = sizeof(name2); 1123 j = sysctl(name1, l1, name2, &l2, 0, 0); 1124 if (j < 0) { 1125 if (errno == ENOENT) 1126 return (0); 1127 else 1128 err(1, "sysctl(getnext) %d %zu", j, l2); 1129 } 1130 1131 l2 /= sizeof(int); 1132 1133 if (len < 0 || l2 < (unsigned int)len) 1134 return (0); 1135 1136 for (i = 0; i < len; i++) 1137 if (name2[i] != oid[i]) 1138 return (0); 1139 1140 i = show_var(name2, l2); 1141 if (!i && !bflag) 1142 putchar('\n'); 1143 1144 memcpy(name1+2, name2, l2 * sizeof(int)); 1145 l1 = 2 + l2; 1146 } 1147 } 1148