boot.c revision 1.31
1 /* $NetBSD: boot.c,v 1.31 2025/05/20 12:24:15 pgoyette Exp $ */ 2 3 /*- 4 * Copyright (c) 2016 Kimihiro Nonaka <nonaka (at) netbsd.org> 5 * 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include "efiboot.h" 30 31 #include <sys/bootblock.h> 32 #include <sys/boot_flag.h> 33 #include <machine/limits.h> 34 35 #include "bootcfg.h" 36 #include "bootmod.h" 37 #include "bootmenu.h" 38 #include "biosdisk.h" 39 #include "devopen.h" 40 41 #ifdef _STANDALONE 42 #include <bootinfo.h> 43 #endif 44 45 int errno; 46 int boot_biosdev; 47 daddr_t boot_biossector; 48 49 extern const char bootprog_name[], bootprog_rev[], bootprog_kernrev[]; 50 51 extern struct x86_boot_params boot_params; 52 extern char twiddle_toggle; 53 54 static const char * const names[][2] = { 55 { "netbsd/kernel", "netbsd/kernel.gz" }, 56 { "onetbsd/kernel", "onetbsd/kernel.gz" }, 57 { "netbsd.old/kernel", "netbsd.old/kernel.gz" }, 58 { "netbsd", "netbsd.gz" }, 59 { "onetbsd", "onetbsd.gz" }, 60 { "netbsd.old", "netbsd.old.gz" }, 61 }; 62 63 #define NUMNAMES __arraycount(names) 64 #define DEFFILENAME names[0][0] 65 66 #ifndef EFIBOOTCFG_FILENAME 67 #define EFIBOOTCFG_FILENAME "esp:/EFI/NetBSD/boot.cfg" 68 #endif 69 70 void command_help(char *); 71 void command_quit(char *); 72 void command_boot(char *); 73 void command_pkboot(char *); 74 void command_consdev(char *); 75 void command_root(char *); 76 void command_dev(char *); 77 void command_devpath(char *); 78 void command_efivar(char *); 79 void command_gop(char *); 80 #if LIBSA_ENABLE_LS_OP 81 void command_ls(char *); 82 #endif 83 void command_memmap(char *); 84 #ifndef SMALL 85 void command_menu(char *); 86 #endif 87 void command_modules(char *); 88 void command_multiboot(char *); 89 void command_reloc(char *); 90 void command_text(char *); 91 void command_version(char *); 92 93 const struct bootblk_command commands[] = { 94 { "help", command_help }, 95 { "?", command_help }, 96 { "quit", command_quit }, 97 { "boot", command_boot }, 98 { "pkboot", command_pkboot }, 99 { "consdev", command_consdev }, 100 { "root", command_root }, 101 { "dev", command_dev }, 102 { "devpath", command_devpath }, 103 { "efivar", command_efivar }, 104 { "fs", fs_add }, 105 { "gop", command_gop }, 106 { "load", module_add }, 107 #if LIBSA_ENABLE_LS_OP 108 { "ls", command_ls }, 109 #endif 110 { "memmap", command_memmap }, 111 #ifndef SMALL 112 { "menu", command_menu }, 113 #endif 114 { "modules", command_modules }, 115 { "multiboot", command_multiboot }, 116 { "reloc", command_reloc }, 117 { "rndseed", rnd_add }, 118 { "splash", splash_add }, 119 { "text", command_text }, 120 { "userconf", userconf_add }, 121 { "version", command_version }, 122 { NULL, NULL }, 123 }; 124 125 static char *default_fsname; 126 static char *default_devname; 127 static int default_unit, default_partition; 128 static const char *default_filename; 129 static const char *default_part_name; 130 131 static char *sprint_bootsel(const char *); 132 static void bootit(const char *, int); 133 static void bootit2(char *, size_t, int); 134 135 int 136 parsebootfile(const char *fname, char **fsname, char **devname, int *unit, 137 int *partition, const char **file) 138 { 139 const char *col; 140 static char savedevname[MAXDEVNAME+1]; 141 #if defined(SUPPORT_NFS) || defined(SUPPORT_TFTP) 142 const struct netboot_fstab *nf; 143 #endif 144 145 *fsname = default_fsname; 146 if (default_part_name == NULL) { 147 *devname = default_devname; 148 } else { 149 snprintf(savedevname, sizeof(savedevname), 150 "NAME=%s", default_part_name); 151 *devname = savedevname; 152 } 153 *unit = default_unit; 154 *partition = default_partition; 155 *file = default_filename; 156 157 if (fname == NULL) 158 return 0; 159 160 if ((col = strchr(fname, ':')) != NULL) { /* device given */ 161 int devlen; 162 int u = 0, p = 0; 163 int i = 0; 164 165 devlen = col - fname; 166 if (devlen > MAXDEVNAME) 167 return EINVAL; 168 169 if (strstr(fname, "NAME=") == fname) { 170 strlcpy(savedevname, fname, devlen + 1); 171 *fsname = "ufs"; 172 *devname = savedevname; 173 *unit = -1; 174 *partition = -1; 175 fname = col + 1; 176 goto out; 177 } 178 179 #define isvalidname(c) ((c) >= 'a' && (c) <= 'z') 180 if (!isvalidname(fname[i])) 181 return EINVAL; 182 do { 183 savedevname[i] = fname[i]; 184 i++; 185 } while (isvalidname(fname[i])); 186 savedevname[i] = '\0'; 187 188 #define isnum(c) ((c) >= '0' && (c) <= '9') 189 if (i < devlen) { 190 if (!isnum(fname[i])) 191 return EUNIT; 192 do { 193 u *= 10; 194 u += fname[i++] - '0'; 195 } while (isnum(fname[i])); 196 } 197 198 #define isvalidpart(c) ((c) >= 'a' && (c) <= 'z') 199 if (i < devlen) { 200 if (!isvalidpart(fname[i])) 201 return EPART; 202 p = fname[i++] - 'a'; 203 } 204 205 if (i != devlen) 206 return ENXIO; 207 208 #if defined(SUPPORT_NFS) || defined(SUPPORT_TFTP) 209 nf = netboot_fstab_find(savedevname); 210 if (nf != NULL) 211 *fsname = (char *)nf->name; 212 else 213 #endif 214 *fsname = "ufs"; 215 *devname = savedevname; 216 *unit = u; 217 *partition = p; 218 fname = col + 1; 219 } 220 221 out: 222 if (*fname) 223 *file = fname; 224 225 return 0; 226 } 227 228 static char * 229 snprint_bootdev(char *buf, size_t bufsize, const char *devname, int unit, 230 int partition) 231 { 232 static const char *no_partition_devs[] = { "esp", "net", "nfs", "tftp" }; 233 int i; 234 235 for (i = 0; i < __arraycount(no_partition_devs); i++) 236 if (strcmp(devname, no_partition_devs[i]) == 0) 237 break; 238 if (strstr(devname, "NAME=") == devname) 239 strlcpy(buf, devname, bufsize); 240 else 241 snprintf(buf, bufsize, "%s%d%c", devname, unit, 242 i < __arraycount(no_partition_devs) ? '\0' : 'a' + partition); 243 return buf; 244 } 245 246 static char * 247 sprint_bootsel(const char *filename) 248 { 249 char *fsname, *devname; 250 int unit, partition; 251 const char *file; 252 static char buf[80]; 253 254 if (parsebootfile(filename, &fsname, &devname, &unit, 255 &partition, &file) == 0) { 256 snprintf(buf, sizeof(buf), "%s:%s", snprint_bootdev(buf, 257 sizeof(buf), devname, unit, partition), file); 258 return buf; 259 } 260 return "(invalid)"; 261 } 262 263 void 264 clearit(void) 265 { 266 267 if (bootcfg_info.clear) 268 clear_pc_screen(); 269 } 270 271 static void 272 bootit(const char *filename, int howto) 273 { 274 275 if (howto & AB_VERBOSE) 276 printf("booting %s (howto 0x%x)\n", sprint_bootsel(filename), 277 howto); 278 279 if (exec_netbsd(filename, efi_loadaddr, howto, 0, efi_cleanup) < 0) 280 printf("boot: %s: %s\n", sprint_bootsel(filename), 281 strerror(errno)); 282 else 283 printf("boot returned\n"); 284 } 285 286 void 287 boot(void) 288 { 289 int currname; 290 int c; 291 #if defined(SUPPORT_NFS) || defined(SUPPORT_TFTP) 292 const struct netboot_fstab *nf; 293 #endif 294 295 boot_modules_enabled = !(boot_params.bp_flags & X86_BP_FLAGS_NOMODULES); 296 297 /* try to set default device to what BIOS tells us */ 298 bios2dev(boot_biosdev, boot_biossector, &default_devname, &default_unit, 299 &default_partition, &default_part_name); 300 301 /* if the user types "boot" without filename */ 302 default_filename = DEFFILENAME; 303 304 #if defined(SUPPORT_NFS) || defined(SUPPORT_TFTP) 305 nf = netboot_fstab_find(default_devname); 306 if (nf != NULL) 307 default_fsname = (char *)nf->name; 308 else 309 #endif 310 default_fsname = "ufs"; 311 312 if (!(boot_params.bp_flags & X86_BP_FLAGS_NOBOOTCONF)) { 313 #ifdef EFIBOOTCFG_FILENAME 314 int rv = EINVAL; 315 if (efi_bootdp_type != BOOT_DEVICE_TYPE_NET) 316 rv = parsebootconf(EFIBOOTCFG_FILENAME); 317 if (rv) 318 #endif 319 parsebootconf(BOOTCFG_FILENAME); 320 } else { 321 bootcfg_info.timeout = boot_params.bp_timeout; 322 } 323 324 /* 325 * If console set in boot.cfg, switch to it. 326 * This will print the banner, so we don't need to explicitly do it 327 */ 328 if (bootcfg_info.consdev) { 329 command_consdev(bootcfg_info.consdev); 330 } else { 331 clearit(); 332 print_bootcfg_banner(bootprog_name, bootprog_rev); 333 } 334 335 /* Display the menu, if applicable */ 336 twiddle_toggle = 0; 337 if (bootcfg_info.nummenu > 0) { 338 /* Does not return */ 339 doboottypemenu(); 340 } 341 342 printf("Press return to boot now, any other key for boot menu\n"); 343 for (currname = 0; currname < NUMNAMES; currname++) { 344 printf("booting %s - starting in ", 345 sprint_bootsel(names[currname][0])); 346 347 c = awaitkey((bootcfg_info.timeout < 0) ? 0 348 : bootcfg_info.timeout, 1); 349 if ((c != '\r') && (c != '\n') && (c != '\0')) { 350 if ((boot_params.bp_flags & X86_BP_FLAGS_PASSWORD) == 0) { 351 /* do NOT ask for password */ 352 bootmenu(); /* does not return */ 353 } else { 354 /* DO ask for password */ 355 if (check_password((char *)boot_params.bp_password)) { 356 /* password ok */ 357 printf("type \"?\" or \"help\" for help.\n"); 358 bootmenu(); /* does not return */ 359 } else { 360 /* bad password */ 361 printf("Wrong password.\n"); 362 currname = 0; 363 continue; 364 } 365 } 366 } 367 368 /* 369 * try pairs of names[] entries, foo and foo.gz 370 */ 371 /* don't print "booting..." again */ 372 bootit(names[currname][0], 0); 373 /* since it failed, try compressed bootfile. */ 374 bootit(names[currname][1], AB_VERBOSE); 375 } 376 377 bootmenu(); /* does not return */ 378 } 379 380 /* ARGSUSED */ 381 void 382 command_help(char *arg) 383 { 384 385 printf("commands are:\n" 386 "boot [dev:][filename] [-12acdqsvxz]\n" 387 #ifndef NO_RAIDFRAME 388 " dev syntax is (hd|fd|cd|raid)[N[x]]\n" 389 #else 390 " dev syntax is (hd|fd|cd)[N[x]]\n" 391 #endif 392 #ifndef NO_GPT 393 " or NAME=gpt_label\n" 394 #endif 395 " (ex. \"hd0a:netbsd.old -s\")\n" 396 "pkboot [dev:][filename] [-12acdqsvxz]\n" 397 "dev [dev:]\n" 398 "consdev {pc|com[0123][,{speed}]|com,{ioport}[,{speed}]}\n" 399 "root {spec}\n" 400 " spec can be disk, e.g. wd0, sd0\n" 401 " or string like wedge:name\n" 402 "devpath\n" 403 "efivar\n" 404 "gop [{modenum|list}]\n" 405 "load {path_to_module}\n" 406 #if LIBSA_ENABLE_LS_OP 407 "ls [dev:][path]\n" 408 #endif 409 "memmap [{sorted|unsorted|compact}]\n" 410 #ifndef SMALL 411 "menu (reenters boot menu, if defined in boot.cfg)\n" 412 #endif 413 "modules {on|off|enabled|disabled}\n" 414 "multiboot [dev:][filename] [<args>]\n" 415 "reloc {address|none|default}\n" 416 "rndseed {path_to_rndseed_file}\n" 417 "splash {path_to_image_file}\n" 418 "text [{modenum|list}]\n" 419 "userconf {command}\n" 420 "version\n" 421 "help|?\n" 422 "quit\n"); 423 } 424 425 #if LIBSA_ENABLE_LS_OP 426 void 427 command_ls(char *arg) 428 { 429 const char *save = default_filename; 430 431 default_filename = "/"; 432 ls(arg); 433 default_filename = save; 434 } 435 #endif 436 437 /* ARGSUSED */ 438 void 439 command_quit(char *arg) 440 { 441 442 printf("Exiting...\n"); 443 delay(1 * 1000 * 1000); 444 reboot(); 445 /* Note: we shouldn't get to this point! */ 446 panic("Could not reboot!"); 447 } 448 449 static void 450 bootit2(char *path, size_t plen, int howto) 451 { 452 bootit(path, howto); 453 snprintf(path, plen, "%s.gz", path); 454 bootit(path, howto | AB_VERBOSE); 455 } 456 457 void 458 command_boot(char *arg) 459 { 460 char *filename; 461 char path[512]; 462 int howto; 463 464 if (!parseboot(arg, &filename, &howto)) 465 return; 466 467 if (filename != NULL) { 468 /* try old locations first to appease atf test beds */ 469 snprintf(path, sizeof(path) - 4, "%s", filename); 470 bootit2(path, sizeof(path), howto); 471 472 /* now treat given filename as a directory name */ 473 if (strchr(filename, '/') == NULL) { 474 snprintf(path, sizeof(path) - 4, "%s/kernel", filename); 475 bootit2(path, sizeof(path), howto); 476 } 477 } else { 478 int i; 479 480 for (i = 0; i < NUMNAMES; i++) { 481 bootit(names[i][0], howto); 482 bootit(names[i][1], howto); 483 } 484 } 485 } 486 487 void 488 command_pkboot(char *arg) 489 { 490 extern int has_prekern; 491 has_prekern = 1; 492 command_boot(arg); 493 has_prekern = 0; 494 } 495 496 void 497 command_dev(char *arg) 498 { 499 static char savedevname[MAXDEVNAME + 1]; 500 char buf[80]; 501 char *devname; 502 const char *file; /* dummy */ 503 504 if (*arg == '\0') { 505 efi_disk_show(); 506 efi_net_show(); 507 508 if (default_part_name != NULL) 509 printf("default NAME=%s\n", default_part_name); 510 else 511 printf("default %s\n", 512 snprint_bootdev(buf, sizeof(buf), 513 default_devname, default_unit, 514 default_partition)); 515 return; 516 } 517 518 if (strchr(arg, ':') == NULL || 519 parsebootfile(arg, &default_fsname, &devname, &default_unit, 520 &default_partition, &file)) { 521 command_help(NULL); 522 return; 523 } 524 525 /* put to own static storage */ 526 strncpy(savedevname, devname, MAXDEVNAME + 1); 527 default_devname = savedevname; 528 529 /* +5 to skip leading NAME= */ 530 if (strstr(devname, "NAME=") == devname) 531 default_part_name = default_devname + 5; 532 } 533 534 static const struct cons_devs { 535 const char *name; 536 u_int tag; 537 int ioport; 538 } cons_devs[] = { 539 { "pc", CONSDEV_PC, 0 }, 540 { "com0", CONSDEV_COM0, 0 }, 541 { "com1", CONSDEV_COM1, 0 }, 542 { "com2", CONSDEV_COM2, 0 }, 543 { "com3", CONSDEV_COM3, 0 }, 544 { "com0kbd", CONSDEV_COM0KBD, 0 }, 545 { "com1kbd", CONSDEV_COM1KBD, 0 }, 546 { "com2kbd", CONSDEV_COM2KBD, 0 }, 547 { "com3kbd", CONSDEV_COM3KBD, 0 }, 548 { "com", CONSDEV_COM0, -1 }, 549 { "auto", CONSDEV_AUTO, 0 }, 550 { NULL, 0 } 551 }; 552 553 void 554 command_consdev(char *arg) 555 { 556 const struct cons_devs *cdp; 557 char *sep, *sep2 = NULL; 558 int ioport, speed = 0; 559 560 if (*arg == '\0') { 561 efi_cons_show(); 562 return; 563 } 564 565 sep = strchr(arg, ','); 566 if (sep != NULL) { 567 *sep++ = '\0'; 568 sep2 = strchr(sep, ','); 569 if (sep2 != NULL) 570 *sep2++ = '\0'; 571 } 572 573 for (cdp = cons_devs; cdp->name; cdp++) { 574 if (strcmp(arg, cdp->name) == 0) { 575 ioport = cdp->ioport; 576 if (cdp->tag == CONSDEV_PC || cdp->tag == CONSDEV_AUTO) { 577 if (sep != NULL || sep2 != NULL) 578 goto error; 579 } else { 580 /* com? */ 581 if (ioport == -1) { 582 if (sep != NULL) { 583 u_long t = strtoul(sep, NULL, 0); 584 if (t > INT_MAX) 585 goto error; 586 ioport = (int)t; 587 } 588 if (sep2 != NULL) { 589 speed = atoi(sep2); 590 if (speed < 0) 591 goto error; 592 } 593 } else { 594 if (sep != NULL) { 595 speed = atoi(sep); 596 if (speed < 0) 597 goto error; 598 } 599 if (sep2 != NULL) 600 goto error; 601 } 602 } 603 efi_consinit(cdp->tag, ioport, speed); 604 clearit(); 605 print_bootcfg_banner(bootprog_name, bootprog_rev); 606 return; 607 } 608 } 609 error: 610 printf("invalid console device.\n"); 611 } 612 613 void 614 command_root(char *arg) 615 { 616 struct btinfo_rootdevice *biv = &bi_root; 617 618 strncpy(biv->devname, arg, sizeof(biv->devname)); 619 if (biv->devname[sizeof(biv->devname)-1] != '\0') { 620 biv->devname[sizeof(biv->devname)-1] = '\0'; 621 printf("truncated to %s\n",biv->devname); 622 } 623 } 624 625 626 #ifndef SMALL 627 /* ARGSUSED */ 628 void 629 command_menu(char *arg) 630 { 631 632 if (bootcfg_info.nummenu > 0) { 633 /* Does not return */ 634 doboottypemenu(); 635 } else 636 printf("No menu defined in boot.cfg\n"); 637 } 638 #endif /* !SMALL */ 639 640 void 641 command_modules(char *arg) 642 { 643 644 if (strcmp(arg, "enabled") == 0 || 645 strcmp(arg, "on") == 0) 646 boot_modules_enabled = true; 647 else if (strcmp(arg, "disabled") == 0 || 648 strcmp(arg, "off") == 0) 649 boot_modules_enabled = false; 650 else 651 printf("invalid flag, must be 'enabled' or 'disabled'.\n"); 652 } 653 654 void 655 command_multiboot(char *arg) 656 { 657 char *filename; 658 659 filename = arg; 660 if (exec_multiboot(filename, gettrailer(arg)) < 0) 661 printf("multiboot: %s: %s\n", sprint_bootsel(filename), 662 strerror(errno)); 663 else 664 printf("boot returned\n"); 665 } 666 667 void 668 command_reloc(char *arg) 669 { 670 char *ep; 671 672 if (*arg == '\0') { 673 switch (efi_reloc_type) { 674 case RELOC_NONE: 675 printf("reloc: none\n"); 676 break; 677 case RELOC_ADDR: 678 printf("reloc: %p\n", (void *)efi_kernel_reloc); 679 break; 680 case RELOC_DEFAULT: 681 default: 682 printf("reloc: default\n"); 683 break; 684 } 685 goto out; 686 } 687 688 if (strcmp(arg, "default") == 0) { 689 efi_reloc_type = RELOC_DEFAULT; 690 goto out; 691 } 692 693 if (strcmp(arg, "none") == 0) { 694 efi_reloc_type = RELOC_NONE; 695 goto out; 696 } 697 698 errno = 0; 699 efi_kernel_reloc = strtoul(arg, &ep, 0); 700 if (ep == arg || *ep != '\0' || errno) 701 printf("could not parse address \"%s\"\n", arg); 702 else 703 efi_reloc_type = RELOC_ADDR; 704 out: 705 return; 706 707 } 708 709 void 710 command_version(char *arg) 711 { 712 CHAR16 *path; 713 char *upath, *ufirmware; 714 int rv; 715 716 if (strcmp(arg, "full") == 0) { 717 printf("ImageBase: 0x%" PRIxPTR "\n", 718 (uintptr_t)efi_li->ImageBase); 719 printf("Stack: 0x%" PRIxPTR "\n", efi_main_sp); 720 printf("EFI version: %d.%02d\n", 721 ST->Hdr.Revision >> 16, ST->Hdr.Revision & 0xffff); 722 ufirmware = NULL; 723 rv = ucs2_to_utf8(ST->FirmwareVendor, &ufirmware); 724 if (rv == 0) { 725 printf("EFI Firmware: %s (rev %d.%02d)\n", ufirmware, 726 ST->FirmwareRevision >> 16, 727 ST->FirmwareRevision & 0xffff); 728 FreePool(ufirmware); 729 } 730 path = DevicePathToStr(efi_bootdp); 731 upath = NULL; 732 rv = ucs2_to_utf8(path, &upath); 733 FreePool(path); 734 if (rv == 0) { 735 printf("Boot DevicePath: %d:%d:%s\n", 736 DevicePathType(efi_bootdp), 737 DevicePathSubType(efi_bootdp), upath); 738 FreePool(upath); 739 } 740 } 741 742 printf("\n" 743 ">> %s, Revision %s (from NetBSD %s)\n" 744 ">> Memory: %d/%d k\n", 745 bootprog_name, bootprog_rev, bootprog_kernrev, 746 getbasemem(), getextmem()); 747 } 748 749 void 750 command_memmap(char *arg) 751 { 752 bool sorted = true; 753 bool compact = false; 754 755 if (*arg == '\0' || strcmp(arg, "sorted") == 0) 756 /* Already sorted is true. */; 757 else if (strcmp(arg, "unsorted") == 0) 758 sorted = false; 759 else if (strcmp(arg, "compact") == 0) 760 compact = true; 761 else { 762 printf("invalid flag, " 763 "must be 'sorted', 'unsorted' or 'compact'.\n"); 764 return; 765 } 766 767 efi_memory_show_map(sorted, compact); 768 } 769 770 void 771 command_devpath(char *arg) 772 { 773 EFI_STATUS status; 774 UINTN i, nhandles; 775 EFI_HANDLE *handles; 776 EFI_DEVICE_PATH *dp0, *dp; 777 CHAR16 *path; 778 char *upath; 779 UINTN cols, rows, row = 0; 780 int rv; 781 782 status = uefi_call_wrapper(ST->ConOut->QueryMode, 4, ST->ConOut, 783 ST->ConOut->Mode->Mode, &cols, &rows); 784 if (EFI_ERROR(status) || rows <= 2) 785 rows = 0; 786 else 787 rows -= 2; 788 789 /* 790 * all devices. 791 */ 792 status = LibLocateHandle(ByProtocol, &DevicePathProtocol, NULL, 793 &nhandles, &handles); 794 if (EFI_ERROR(status)) 795 return; 796 797 for (i = 0; i < nhandles; i++) { 798 status = uefi_call_wrapper(BS->HandleProtocol, 3, handles[i], 799 &DevicePathProtocol, (void **)&dp0); 800 if (EFI_ERROR(status)) 801 break; 802 803 printf("DevicePathType %d\n", DevicePathType(dp0)); 804 if (++row >= rows) { 805 row = 0; 806 printf("Press Any Key to continue :"); 807 (void) awaitkey(-1, 0); 808 printf("\n"); 809 } 810 for (dp = dp0; 811 !IsDevicePathEnd(dp); 812 dp = NextDevicePathNode(dp)) { 813 814 path = DevicePathToStr(dp); 815 upath = NULL; 816 rv = ucs2_to_utf8(path, &upath); 817 FreePool(path); 818 if (rv) { 819 printf("convert failed\n"); 820 break; 821 } 822 823 printf("%d:%d:%s\n", DevicePathType(dp), 824 DevicePathSubType(dp), upath); 825 FreePool(upath); 826 827 if (++row >= rows) { 828 row = 0; 829 printf("Press Any Key to continue :"); 830 (void) awaitkey(-1, 0); 831 printf("\n"); 832 } 833 } 834 } 835 } 836 837 838 void 839 command_efivar(char *arg) 840 { 841 static const char header[] = 842 "GUID Variable Name Value\n" 843 "==================================== ==================== ========\n"; 844 EFI_STATUS status; 845 UINTN sz = 64, osz; 846 CHAR16 *name = NULL, *tmp, *val, guid[128]; 847 char *uname, *uval, *uguid; 848 EFI_GUID vendor; 849 UINTN cols, rows, row = 0; 850 int rv; 851 852 status = uefi_call_wrapper(ST->ConOut->QueryMode, 4, ST->ConOut, 853 ST->ConOut->Mode->Mode, &cols, &rows); 854 if (EFI_ERROR(status) || rows <= 2) 855 rows = 0; 856 else 857 rows -= 2; 858 859 name = AllocatePool(sz); 860 if (name == NULL) { 861 printf("memory allocation failed: %" PRIuMAX" bytes\n", 862 (uintmax_t)sz); 863 return; 864 } 865 866 SetMem(name, sz, 0); 867 vendor = NullGuid; 868 869 printf("%s", header); 870 for (;;) { 871 osz = sz; 872 status = uefi_call_wrapper(RT->GetNextVariableName, 3, 873 &sz, name, &vendor); 874 if (EFI_ERROR(status)) { 875 if (status == EFI_NOT_FOUND) 876 break; 877 if (status != EFI_BUFFER_TOO_SMALL) { 878 printf("GetNextVariableName failed: %" PRIxMAX "\n", 879 (uintmax_t)status); 880 break; 881 } 882 883 tmp = AllocatePool(sz); 884 if (tmp == NULL) { 885 printf("memory allocation failed: %" PRIuMAX 886 "bytes\n", (uintmax_t)sz); 887 break; 888 } 889 SetMem(tmp, sz, 0); 890 CopyMem(tmp, name, osz); 891 FreePool(name); 892 name = tmp; 893 continue; 894 } 895 896 val = LibGetVariable(name, &vendor); 897 if (val != NULL) { 898 uval = NULL; 899 rv = ucs2_to_utf8(val, &uval); 900 FreePool(val); 901 if (rv) { 902 printf("value convert failed\n"); 903 break; 904 } 905 } else 906 uval = NULL; 907 uname = NULL; 908 rv = ucs2_to_utf8(name, &uname); 909 if (rv) { 910 printf("name convert failed\n"); 911 FreePool(uval); 912 break; 913 } 914 GuidToString(guid, &vendor); 915 uguid = NULL; 916 rv = ucs2_to_utf8(guid, &uguid); 917 if (rv) { 918 printf("GUID convert failed\n"); 919 FreePool(uval); 920 FreePool(uname); 921 break; 922 } 923 printf("%-35s %-20s %s\n", uguid, uname, uval ? uval : "(null)"); 924 FreePool(uguid); 925 FreePool(uname); 926 if (uval != NULL) 927 FreePool(uval); 928 929 if (++row >= rows) { 930 row = 0; 931 printf("Press Any Key to continue :"); 932 (void) awaitkey(-1, 0); 933 printf("\n"); 934 } 935 } 936 937 FreePool(name); 938 } 939
Indexes created Mon Oct 20 05:10:11 GMT 2025