1 /* builtins.c - the GRUB builtin commands */ 2 /* 3 * GRUB -- GRand Unified Bootloader 4 * Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 */ 20 21 /* Include stdio.h before shared.h, because we can't define 22 WITHOUT_LIBC_STUBS here. */ 23 #ifdef GRUB_UTIL 24 # include <stdio.h> 25 #endif 26 27 #include <shared.h> 28 #include <filesys.h> 29 #include <term.h> 30 31 #ifdef SUPPORT_NETBOOT 32 # include <grub.h> 33 #endif 34 35 #ifdef SUPPORT_SERIAL 36 # include <serial.h> 37 # include <terminfo.h> 38 #endif 39 40 #ifdef GRUB_UTIL 41 # include <device.h> 42 #else /* ! GRUB_UTIL */ 43 # include <apic.h> 44 # include <smp-imps.h> 45 #endif /* ! GRUB_UTIL */ 46 47 #ifdef USE_MD5_PASSWORDS 48 # include <md5.h> 49 #endif 50 51 #include <cpu.h> 52 #include <expand.h> 53 54 /* The type of kernel loaded. */ 55 kernel_t kernel_type; 56 /* The boot device. */ 57 static int bootdev; 58 /* True when the debug mode is turned on, and false 59 when it is turned off. */ 60 int debug = 0; 61 /* The default entry. */ 62 int default_entry = 0; 63 /* The fallback entry. */ 64 int fallback_entryno; 65 int fallback_entries[MAX_FALLBACK_ENTRIES]; 66 /* The number of current entry. */ 67 int current_entryno; 68 /* The address for Multiboot command-line buffer. */ 69 static char *mb_cmdline; 70 /* The password. */ 71 char *password; 72 /* The password type. */ 73 password_t password_type; 74 /* The flag for indicating that the user is authoritative. */ 75 int auth = 0; 76 /* The timeout. */ 77 int grub_timeout = -1; 78 /* Whether to show the menu or not. */ 79 int show_menu = 1; 80 /* The BIOS drive map. */ 81 static unsigned short bios_drive_map[DRIVE_MAP_SIZE + 1]; 82 83 /* Prototypes for allowing straightfoward calling of builtins functions 84 inside other functions. */ 85 static int configfile_func (char *arg, int flags); 86 #ifdef SUPPORT_NETBOOT 87 static void solaris_config_file (void); 88 #endif 89 90 unsigned int min_mem64 = 0; 91 92 #if defined(__sun) && !defined(GRUB_UTIL) 93 extern void __enable_execute_stack (void *); 94 void 95 __enable_execute_stack (void *addr) 96 { 97 } 98 #endif /* __sun && !GRUB_UTIL */ 99 100 /* Initialize the data for builtins. */ 101 void 102 init_builtins (void) 103 { 104 kernel_type = KERNEL_TYPE_NONE; 105 /* BSD and chainloading evil hacks! */ 106 bootdev = set_bootdev (0); 107 mb_cmdline = (char *) MB_CMDLINE_BUF; 108 } 109 110 /* Initialize the data for the configuration file. */ 111 void 112 init_config (void) 113 { 114 default_entry = 0; 115 password = 0; 116 fallback_entryno = -1; 117 fallback_entries[0] = -1; 118 grub_timeout = -1; 119 current_rootpool[0] = '\0'; 120 current_bootfs[0] = '\0'; 121 current_bootpath[0] = '\0'; 122 current_bootfs_obj = 0; 123 current_devid[0] = '\0'; 124 is_zfs_mount = 0; 125 } 126 127 /* Check a password for correctness. Returns 0 if password was 128 correct, and a value != 0 for error, similarly to strcmp. */ 129 int 130 check_password (char *entered, char* expected, password_t type) 131 { 132 switch (type) 133 { 134 case PASSWORD_PLAIN: 135 return strcmp (entered, expected); 136 137 #ifdef USE_MD5_PASSWORDS 138 case PASSWORD_MD5: 139 return check_md5_password (entered, expected); 140 #endif 141 default: 142 /* unsupported password type: be secure */ 143 return 1; 144 } 145 } 146 147 /* Print which sector is read when loading a file. */ 148 static void 149 disk_read_print_func(unsigned int sector, int offset, int length) 150 { 151 grub_printf ("[%u,%d,%d]", sector, offset, length); 152 } 153 154 155 /* blocklist */ 156 static int 157 blocklist_func (char *arg, int flags) 158 { 159 char *dummy = (char *) RAW_ADDR (0x100000); 160 unsigned int start_sector = 0; 161 int num_sectors = 0; 162 int num_entries = 0; 163 int last_length = 0; 164 165 auto void disk_read_blocklist_func (unsigned int sector, int offset, 166 int length); 167 168 /* Collect contiguous blocks into one entry as many as possible, 169 and print the blocklist notation on the screen. */ 170 auto void disk_read_blocklist_func (unsigned int sector, int offset, 171 int length) 172 { 173 if (num_sectors > 0) 174 { 175 if (start_sector + num_sectors == sector 176 && offset == 0 && last_length == SECTOR_SIZE) 177 { 178 num_sectors++; 179 last_length = length; 180 return; 181 } 182 else 183 { 184 if (last_length == SECTOR_SIZE) 185 grub_printf ("%s%d+%d", num_entries ? "," : "", 186 start_sector - part_start, num_sectors); 187 else if (num_sectors > 1) 188 grub_printf ("%s%d+%d,%d[0-%d]", num_entries ? "," : "", 189 start_sector - part_start, num_sectors-1, 190 start_sector + num_sectors-1 - part_start, 191 last_length); 192 else 193 grub_printf ("%s%d[0-%d]", num_entries ? "," : "", 194 start_sector - part_start, last_length); 195 num_entries++; 196 num_sectors = 0; 197 } 198 } 199 200 if (offset > 0) 201 { 202 grub_printf("%s%u[%d-%d]", num_entries ? "," : "", 203 sector-part_start, offset, offset+length); 204 num_entries++; 205 } 206 else 207 { 208 start_sector = sector; 209 num_sectors = 1; 210 last_length = length; 211 } 212 } 213 214 /* Open the file. */ 215 if (! grub_open (arg)) 216 return 1; 217 218 /* Print the device name. */ 219 grub_printf ("(%cd%d", 220 (current_drive & 0x80) ? 'h' : 'f', 221 current_drive & ~0x80); 222 223 if ((current_partition & 0xFF0000) != 0xFF0000) 224 grub_printf (",%d", (current_partition >> 16) & 0xFF); 225 226 if ((current_partition & 0x00FF00) != 0x00FF00) 227 grub_printf (",%c", 'a' + ((current_partition >> 8) & 0xFF)); 228 229 grub_printf (")"); 230 231 /* Read in the whole file to DUMMY. */ 232 disk_read_hook = disk_read_blocklist_func; 233 if (! grub_read (dummy, -1)) 234 goto fail; 235 236 /* The last entry may not be printed yet. Don't check if it is a 237 * full sector, since it doesn't matter if we read too much. */ 238 if (num_sectors > 0) 239 grub_printf ("%s%d+%d", num_entries ? "," : "", 240 start_sector - part_start, num_sectors); 241 242 grub_printf ("\n"); 243 244 fail: 245 disk_read_hook = 0; 246 grub_close (); 247 return errnum; 248 } 249 250 static struct builtin builtin_blocklist = 251 { 252 "blocklist", 253 blocklist_func, 254 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 255 "blocklist FILE", 256 "Print the blocklist notation of the file FILE." 257 }; 258 259 /* boot */ 260 static int 261 boot_func (char *arg, int flags) 262 { 263 /* Clear the int15 handler if we can boot the kernel successfully. 264 This assumes that the boot code never fails only if KERNEL_TYPE is 265 not KERNEL_TYPE_NONE. Is this assumption is bad? */ 266 if (kernel_type != KERNEL_TYPE_NONE) 267 unset_int15_handler (); 268 269 #ifdef SUPPORT_NETBOOT 270 /* Shut down the networking. */ 271 cleanup_net (); 272 #endif 273 274 switch (kernel_type) 275 { 276 case KERNEL_TYPE_FREEBSD: 277 case KERNEL_TYPE_NETBSD: 278 /* *BSD */ 279 bsd_boot (kernel_type, bootdev, (char *) mbi.cmdline); 280 break; 281 282 case KERNEL_TYPE_LINUX: 283 /* Linux */ 284 linux_boot (); 285 break; 286 287 case KERNEL_TYPE_BIG_LINUX: 288 /* Big Linux */ 289 big_linux_boot (); 290 break; 291 292 case KERNEL_TYPE_CHAINLOADER: 293 /* Chainloader */ 294 295 /* Check if we should set the int13 handler. */ 296 if (bios_drive_map[0] != 0) 297 { 298 int i; 299 300 /* Search for SAVED_DRIVE. */ 301 for (i = 0; i < DRIVE_MAP_SIZE; i++) 302 { 303 if (! bios_drive_map[i]) 304 break; 305 else if ((bios_drive_map[i] & 0xFF) == saved_drive) 306 { 307 /* Exchage SAVED_DRIVE with the mapped drive. */ 308 saved_drive = (bios_drive_map[i] >> 8) & 0xFF; 309 break; 310 } 311 } 312 313 /* Set the handler. This is somewhat dangerous. */ 314 set_int13_handler (bios_drive_map); 315 } 316 317 gateA20 (0); 318 boot_drive = saved_drive; 319 chain_stage1 (0, BOOTSEC_LOCATION, boot_part_addr); 320 break; 321 322 case KERNEL_TYPE_MULTIBOOT: 323 /* Multiboot */ 324 #ifdef SUPPORT_NETBOOT 325 #ifdef SOLARIS_NETBOOT 326 if (current_drive == NETWORK_DRIVE) { 327 /* 328 * XXX Solaris hack: use drive_info to pass network information 329 * Turn off the flag bit to the loader is technically 330 * multiboot compliant. 331 */ 332 mbi.flags &= ~MB_INFO_DRIVE_INFO; 333 mbi.drives_length = dhcpack_length; 334 mbi.drives_addr = dhcpack_buf; 335 } 336 #endif /* SOLARIS_NETBOOT */ 337 #endif 338 multi_boot ((int) entry_addr, (int) &mbi); 339 break; 340 341 default: 342 errnum = ERR_BOOT_COMMAND; 343 return 1; 344 } 345 346 return 0; 347 } 348 349 static struct builtin builtin_boot = 350 { 351 "boot", 352 boot_func, 353 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 354 "boot", 355 "Boot the OS/chain-loader which has been loaded." 356 }; 357 358 359 #ifdef SUPPORT_NETBOOT 360 /* bootp */ 361 static int 362 bootp_func (char *arg, int flags) 363 { 364 int with_configfile = 0; 365 366 if (grub_memcmp (arg, "--with-configfile", sizeof ("--with-configfile") - 1) 367 == 0) 368 { 369 with_configfile = 1; 370 arg = skip_to (0, arg); 371 } 372 373 if (! bootp ()) 374 { 375 if (errnum == ERR_NONE) 376 errnum = ERR_DEV_VALUES; 377 378 return 1; 379 } 380 381 /* Notify the configuration. */ 382 print_network_configuration (); 383 384 /* XXX: this can cause an endless loop, but there is no easy way to 385 detect such a loop unfortunately. */ 386 if (with_configfile) 387 configfile_func (config_file, flags); 388 389 return 0; 390 } 391 392 static struct builtin builtin_bootp = 393 { 394 "bootp", 395 bootp_func, 396 BUILTIN_CMDLINE | BUILTIN_MENU | BUILTIN_HELP_LIST, 397 "bootp [--with-configfile]", 398 "Initialize a network device via BOOTP. If the option `--with-configfile'" 399 " is given, try to load a configuration file specified by the 150 vendor" 400 " tag." 401 }; 402 #endif /* SUPPORT_NETBOOT */ 403 404 405 /* cat */ 406 static int 407 cat_func (char *arg, int flags) 408 { 409 char c; 410 411 if (! grub_open (arg)) 412 return 1; 413 414 while (grub_read (&c, 1)) 415 { 416 /* Because running "cat" with a binary file can confuse the terminal, 417 print only some characters as they are. */ 418 if (grub_isspace (c) || (c >= ' ' && c <= '~')) 419 grub_putchar (c); 420 else 421 grub_putchar ('?'); 422 } 423 424 grub_close (); 425 return 0; 426 } 427 428 static struct builtin builtin_cat = 429 { 430 "cat", 431 cat_func, 432 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 433 "cat FILE", 434 "Print the contents of the file FILE." 435 }; 436 437 438 /* chainloader */ 439 static int 440 chainloader_func (char *arg, int flags) 441 { 442 int force = 0; 443 char *file = arg; 444 445 /* If the option `--force' is specified? */ 446 if (substring ("--force", arg) <= 0) 447 { 448 force = 1; 449 file = skip_to (0, arg); 450 } 451 452 /* Open the file. */ 453 if (! grub_open (file)) 454 { 455 kernel_type = KERNEL_TYPE_NONE; 456 return 1; 457 } 458 459 /* Read the first block. */ 460 if (grub_read ((char *) BOOTSEC_LOCATION, SECTOR_SIZE) != SECTOR_SIZE) 461 { 462 grub_close (); 463 kernel_type = KERNEL_TYPE_NONE; 464 465 /* This below happens, if a file whose size is less than 512 bytes 466 is loaded. */ 467 if (errnum == ERR_NONE) 468 errnum = ERR_EXEC_FORMAT; 469 470 return 1; 471 } 472 473 /* If not loading it forcibly, check for the signature. */ 474 if (! force 475 && (*((unsigned short *) (BOOTSEC_LOCATION + BOOTSEC_SIG_OFFSET)) 476 != BOOTSEC_SIGNATURE)) 477 { 478 grub_close (); 479 errnum = ERR_EXEC_FORMAT; 480 kernel_type = KERNEL_TYPE_NONE; 481 return 1; 482 } 483 484 grub_close (); 485 kernel_type = KERNEL_TYPE_CHAINLOADER; 486 487 /* XXX: Windows evil hack. For now, only the first five letters are 488 checked. */ 489 if (IS_PC_SLICE_TYPE_FAT (current_slice) 490 && ! grub_memcmp ((char *) BOOTSEC_LOCATION + BOOTSEC_BPB_SYSTEM_ID, 491 "MSWIN", 5)) 492 *((unsigned long *) (BOOTSEC_LOCATION + BOOTSEC_BPB_HIDDEN_SECTORS)) 493 = part_start; 494 495 errnum = ERR_NONE; 496 497 return 0; 498 } 499 500 static struct builtin builtin_chainloader = 501 { 502 "chainloader", 503 chainloader_func, 504 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 505 "chainloader [--force] FILE", 506 "Load the chain-loader FILE. If --force is specified, then load it" 507 " forcibly, whether the boot loader signature is present or not." 508 }; 509 510 511 /* This function could be used to debug new filesystem code. Put a file 512 in the new filesystem and the same file in a well-tested filesystem. 513 Then, run "cmp" with the files. If no output is obtained, probably 514 the code is good, otherwise investigate what's wrong... */ 515 /* cmp FILE1 FILE2 */ 516 static int 517 cmp_func (char *arg, int flags) 518 { 519 /* The filenames. */ 520 char *file1, *file2; 521 /* The addresses. */ 522 char *addr1, *addr2; 523 int i; 524 /* The size of the file. */ 525 int size; 526 527 /* Get the filenames from ARG. */ 528 file1 = arg; 529 file2 = skip_to (0, arg); 530 if (! *file1 || ! *file2) 531 { 532 errnum = ERR_BAD_ARGUMENT; 533 return 1; 534 } 535 536 /* Terminate the filenames for convenience. */ 537 nul_terminate (file1); 538 nul_terminate (file2); 539 540 /* Read the whole data from FILE1. */ 541 addr1 = (char *) RAW_ADDR (0x100000); 542 if (! grub_open (file1)) 543 return 1; 544 545 /* Get the size. */ 546 size = filemax; 547 if (grub_read (addr1, -1) != size) 548 { 549 grub_close (); 550 return 1; 551 } 552 553 grub_close (); 554 555 /* Read the whole data from FILE2. */ 556 addr2 = addr1 + size; 557 if (! grub_open (file2)) 558 return 1; 559 560 /* Check if the size of FILE2 is equal to the one of FILE2. */ 561 if (size != filemax) 562 { 563 grub_printf ("Differ in size: 0x%x [%s], 0x%x [%s]\n", 564 size, file1, filemax, file2); 565 grub_close (); 566 return 0; 567 } 568 569 if (! grub_read (addr2, -1)) 570 { 571 grub_close (); 572 return 1; 573 } 574 575 grub_close (); 576 577 /* Now compare ADDR1 with ADDR2. */ 578 for (i = 0; i < size; i++) 579 { 580 if (addr1[i] != addr2[i]) 581 grub_printf ("Differ at the offset %d: 0x%x [%s], 0x%x [%s]\n", 582 i, (unsigned) addr1[i], file1, 583 (unsigned) addr2[i], file2); 584 } 585 586 return 0; 587 } 588 589 static struct builtin builtin_cmp = 590 { 591 "cmp", 592 cmp_func, 593 BUILTIN_CMDLINE, 594 "cmp FILE1 FILE2", 595 "Compare the file FILE1 with the FILE2 and inform the different values" 596 " if any." 597 }; 598 599 600 /* color */ 601 /* Set new colors used for the menu interface. Support two methods to 602 specify a color name: a direct integer representation and a symbolic 603 color name. An example of the latter is "blink-light-gray/blue". */ 604 static int 605 color_func (char *arg, int flags) 606 { 607 char *normal; 608 char *highlight; 609 int new_normal_color; 610 int new_highlight_color; 611 static char *color_list[16] = 612 { 613 "black", 614 "blue", 615 "green", 616 "cyan", 617 "red", 618 "magenta", 619 "brown", 620 "light-gray", 621 "dark-gray", 622 "light-blue", 623 "light-green", 624 "light-cyan", 625 "light-red", 626 "light-magenta", 627 "yellow", 628 "white" 629 }; 630 631 auto int color_number (char *str); 632 633 /* Convert the color name STR into the magical number. */ 634 auto int color_number (char *str) 635 { 636 char *ptr; 637 int i; 638 int color = 0; 639 640 /* Find the separator. */ 641 for (ptr = str; *ptr && *ptr != '/'; ptr++) 642 ; 643 644 /* If not found, return -1. */ 645 if (! *ptr) 646 return -1; 647 648 /* Terminate the string STR. */ 649 *ptr++ = 0; 650 651 /* If STR contains the prefix "blink-", then set the `blink' bit 652 in COLOR. */ 653 if (substring ("blink-", str) <= 0) 654 { 655 color = 0x80; 656 str += 6; 657 } 658 659 /* Search for the color name. */ 660 for (i = 0; i < 16; i++) 661 if (grub_strcmp (color_list[i], str) == 0) 662 { 663 color |= i; 664 break; 665 } 666 667 if (i == 16) 668 return -1; 669 670 str = ptr; 671 nul_terminate (str); 672 673 /* Search for the color name. */ 674 for (i = 0; i < 8; i++) 675 if (grub_strcmp (color_list[i], str) == 0) 676 { 677 color |= i << 4; 678 break; 679 } 680 681 if (i == 8) 682 return -1; 683 684 return color; 685 } 686 687 normal = arg; 688 highlight = skip_to (0, arg); 689 690 new_normal_color = color_number (normal); 691 if (new_normal_color < 0 && ! safe_parse_maxint (&normal, &new_normal_color)) 692 return 1; 693 694 /* The second argument is optional, so set highlight_color 695 to inverted NORMAL_COLOR. */ 696 if (! *highlight) 697 new_highlight_color = ((new_normal_color >> 4) 698 | ((new_normal_color & 0xf) << 4)); 699 else 700 { 701 new_highlight_color = color_number (highlight); 702 if (new_highlight_color < 0 703 && ! safe_parse_maxint (&highlight, &new_highlight_color)) 704 return 1; 705 } 706 707 if (current_term->setcolor) 708 current_term->setcolor (new_normal_color, new_highlight_color); 709 710 return 0; 711 } 712 713 static struct builtin builtin_color = 714 { 715 "color", 716 color_func, 717 BUILTIN_CMDLINE | BUILTIN_MENU | BUILTIN_HELP_LIST, 718 "color NORMAL [HIGHLIGHT]", 719 "Change the menu colors. The color NORMAL is used for most" 720 " lines in the menu, and the color HIGHLIGHT is used to highlight the" 721 " line where the cursor points. If you omit HIGHLIGHT, then the" 722 " inverted color of NORMAL is used for the highlighted line." 723 " The format of a color is \"FG/BG\". FG and BG are symbolic color names." 724 " A symbolic color name must be one of these: black, blue, green," 725 " cyan, red, magenta, brown, light-gray, dark-gray, light-blue," 726 " light-green, light-cyan, light-red, light-magenta, yellow and white." 727 " But only the first eight names can be used for BG. You can prefix" 728 " \"blink-\" to FG if you want a blinking foreground color." 729 }; 730 731 732 /* configfile */ 733 static int 734 configfile_func (char *arg, int flags) 735 { 736 char *new_config = config_file; 737 738 /* Check if the file ARG is present. */ 739 if (! grub_open (arg)) 740 return 1; 741 742 grub_close (); 743 744 /* Copy ARG to CONFIG_FILE. */ 745 while ((*new_config++ = *arg++) != 0) 746 ; 747 748 #ifdef GRUB_UTIL 749 /* Force to load the configuration file. */ 750 use_config_file = 1; 751 #endif 752 753 /* Make sure that the user will not be authoritative. */ 754 auth = 0; 755 756 /* Restart cmain. */ 757 grub_longjmp (restart_env, 0); 758 759 /* Never reach here. */ 760 return 0; 761 } 762 763 static struct builtin builtin_configfile = 764 { 765 "configfile", 766 configfile_func, 767 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 768 "configfile FILE", 769 "Load FILE as the configuration file." 770 }; 771 772 773 /* debug */ 774 static int 775 debug_func (char *arg, int flags) 776 { 777 if (debug) 778 { 779 debug = 0; 780 grub_printf (" Debug mode is turned off\n"); 781 } 782 else 783 { 784 debug = 1; 785 grub_printf (" Debug mode is turned on\n"); 786 } 787 788 return 0; 789 } 790 791 static struct builtin builtin_debug = 792 { 793 "debug", 794 debug_func, 795 BUILTIN_CMDLINE, 796 "debug", 797 "Turn on/off the debug mode." 798 }; 799 800 801 /* default */ 802 static int 803 default_func (char *arg, int flags) 804 { 805 #ifndef SUPPORT_DISKLESS 806 if (grub_strcmp (arg, "saved") == 0) 807 { 808 default_entry = saved_entryno; 809 return 0; 810 } 811 #endif /* SUPPORT_DISKLESS */ 812 813 if (! safe_parse_maxint (&arg, &default_entry)) 814 return 1; 815 816 return 0; 817 } 818 819 static struct builtin builtin_default = 820 { 821 "default", 822 default_func, 823 BUILTIN_MENU, 824 #if 0 825 "default [NUM | `saved']", 826 "Set the default entry to entry number NUM (if not specified, it is" 827 " 0, the first entry) or the entry number saved by savedefault." 828 #endif 829 }; 830 831 832 #ifdef GRUB_UTIL 833 /* device */ 834 static int 835 device_func (char *arg, int flags) 836 { 837 char *drive = arg; 838 char *device; 839 840 /* Get the drive number from DRIVE. */ 841 if (! set_device (drive)) 842 return 1; 843 844 /* Get the device argument. */ 845 device = skip_to (0, drive); 846 847 /* Terminate DEVICE. */ 848 nul_terminate (device); 849 850 if (! *device || ! check_device (device)) 851 { 852 errnum = ERR_FILE_NOT_FOUND; 853 return 1; 854 } 855 856 assign_device_name (current_drive, device); 857 858 return 0; 859 } 860 861 static struct builtin builtin_device = 862 { 863 "device", 864 device_func, 865 BUILTIN_MENU | BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 866 "device DRIVE DEVICE", 867 "Specify DEVICE as the actual drive for a BIOS drive DRIVE. This command" 868 " can be used only in the grub shell." 869 }; 870 #endif /* GRUB_UTIL */ 871 872 #ifdef SUPPORT_NETBOOT 873 /* Debug Function for RPC */ 874 #ifdef RPC_DEBUG 875 /* portmap */ 876 static int 877 portmap_func (char *arg, int flags) 878 { 879 int port, prog, ver; 880 if (! grub_eth_probe ()){ 881 grub_printf ("No ethernet card found.\n"); 882 errnum = ERR_DEV_VALUES; 883 return 1; 884 } 885 if ((prog = getdec(&arg)) == -1){ 886 grub_printf("Error prog number\n"); 887 return 1; 888 } 889 arg = skip_to (0, arg); 890 if ((ver = getdec(&arg)) == -1){ 891 grub_printf("Error ver number\n"); 892 return 1; 893 } 894 port = __pmapudp_getport(ARP_SERVER, prog, ver); 895 printf("portmap getport %d", port); 896 return 0; 897 } 898 899 static struct builtin builtin_portmap = 900 { 901 "portmap", 902 portmap_func, 903 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 904 "portmap prog_number vers_number", 905 "Do portmap with the prog_number and vers_number" 906 }; 907 #endif /* RPC_DEBUG */ 908 909 /* dhcp */ 910 static int 911 dhcp_func (char *arg, int flags) 912 { 913 int with_configfile = 0; 914 915 if (grub_memcmp (arg, "--with-configfile", sizeof ("--with-configfile") - 1) 916 == 0) 917 { 918 with_configfile = 1; 919 arg = skip_to (0, arg); 920 } 921 922 if (! dhcp ()) 923 { 924 if (errnum == ERR_NONE) 925 errnum = ERR_DEV_VALUES; 926 927 return 1; 928 } 929 930 /* Notify the configuration. */ 931 print_network_configuration (); 932 933 /* XXX: this can cause an endless loop, but there is no easy way to 934 detect such a loop unfortunately. */ 935 if (with_configfile) 936 configfile_func (config_file, flags); 937 else 938 solaris_config_file(); 939 940 return 0; 941 } 942 943 static int 944 test_config_file(char *menufile) 945 { 946 int err; 947 948 /* 949 * If the file exists, make it the default. Else, fallback 950 * to what it was. Make sure we don't change errnum in the 951 * process. 952 */ 953 err = errnum; 954 if (grub_open(menufile)) { 955 grub_strcpy(config_file, menufile); 956 grub_close(); 957 errnum = err; 958 return (1); 959 } 960 errnum = err; 961 return (0); 962 } 963 964 static void solaris_config_file (void) 965 { 966 static char menufile[64]; 967 static char hexdigit[] = "0123456789ABCDEF"; 968 char *c = menufile; 969 int i; 970 971 /* 972 * if DHCP option 150 has been provided, config_file will 973 * already contain the string, try it. 974 */ 975 if (configfile_origin == CFG_150) { 976 if (test_config_file(config_file)) 977 return; 978 } 979 980 /* 981 * try to find host (MAC address) specific configfile: 982 * menu.lst.01<ether_addr> 983 */ 984 grub_strcpy(c, "menu.lst.01"); 985 c += grub_strlen(c); 986 for (i = 0; i < ETH_ALEN; i++) { 987 unsigned char b = arptable[ARP_CLIENT].node[i]; 988 *c++ = hexdigit[b >> 4]; 989 *c++ = hexdigit[b & 0xf]; 990 } 991 *c = 0; 992 configfile_origin = CFG_MAC; 993 if (test_config_file(menufile)) 994 return; 995 996 /* 997 * try to find a configfile derived from the DHCP/bootp 998 * BootFile string: menu.lst.<BootFile> 999 */ 1000 if (bootfile != NULL && bootfile[0] != 0) { 1001 c = menufile; 1002 grub_strcpy(c, "menu.lst."); 1003 c += grub_strlen("menu.lst."); 1004 i = grub_strlen("pxegrub."); 1005 if (grub_memcmp(bootfile, "pxegrub.", i) == 0) 1006 grub_strcpy(c, bootfile + i); 1007 else 1008 grub_strcpy(c, bootfile); 1009 configfile_origin = CFG_BOOTFILE; 1010 if (test_config_file(menufile)) 1011 return; 1012 } 1013 1014 /* 1015 * Default to hard coded "/boot/grub/menu.lst" config file. 1016 * This is the last resort, so there's no need to test it, 1017 * as there's nothing else to try. 1018 */ 1019 char *cp = config_file; 1020 /* skip leading slashes for tftp */ 1021 while (*cp == '/') 1022 ++cp; 1023 grub_memmove (config_file, cp, strlen(cp) + 1); 1024 configfile_origin = CFG_HARDCODED; 1025 } 1026 1027 static struct builtin builtin_dhcp = 1028 { 1029 "dhcp", 1030 dhcp_func, 1031 BUILTIN_CMDLINE | BUILTIN_MENU | BUILTIN_HELP_LIST, 1032 "dhcp", 1033 "Initialize a network device via DHCP." 1034 }; 1035 #endif /* SUPPORT_NETBOOT */ 1036 1037 static int terminal_func (char *arg, int flags); 1038 1039 static int verbose_func(char *arg, int flags) { 1040 1041 if (grub_strcmp(arg, "off") == 0) { 1042 silent.status = DEFER_SILENT; 1043 return; 1044 } else 1045 if (flags == BUILTIN_CMDLINE) { 1046 silent.status = DEFER_VERBOSE; 1047 return; 1048 } 1049 1050 silent.status = VERBOSE; 1051 1052 /* get back to text console */ 1053 if (current_term->shutdown) { 1054 (*current_term->shutdown)(); 1055 current_term = term_table; /* assumption: console is first */ 1056 } 1057 1058 /* dump the buffer */ 1059 if (!silent.looped) { 1060 /* if the buffer hasn't looped, just print it */ 1061 printf("%s", silent.buffer); 1062 } else { 1063 /* 1064 * If the buffer has looped, first print the oldest part of the buffer, 1065 * which is one past the current null. Then print the newer part which 1066 * starts at the beginning of the buffer. 1067 */ 1068 printf("%s", silent.buffer_start + 1); 1069 printf("%s", silent.buffer); 1070 } 1071 1072 return 0; 1073 } 1074 1075 static struct builtin builtin_verbose = 1076 { 1077 "verbose", 1078 verbose_func, 1079 BUILTIN_CMDLINE | BUILTIN_MENU | BUILTIN_SCRIPT | BUILTIN_HELP_LIST, 1080 "verbose", 1081 "Verbose output during menu entry (script) execution." 1082 }; 1083 1084 #ifdef SUPPORT_GRAPHICS 1085 1086 static int splashimage_func(char *arg, int flags) { 1087 char splashimage[64]; 1088 int i; 1089 1090 /* filename can only be 64 characters due to our buffer size */ 1091 if (strlen(arg) > 63) 1092 return 1; 1093 1094 if (flags == BUILTIN_SCRIPT) 1095 flags = BUILTIN_CMDLINE; 1096 1097 if (flags == BUILTIN_CMDLINE) { 1098 if (!grub_open(arg)) 1099 return 1; 1100 grub_close(); 1101 } 1102 1103 strcpy(splashimage, arg); 1104 1105 /* get rid of TERM_NEED_INIT from the graphics terminal. */ 1106 for (i = 0; term_table[i].name; i++) { 1107 if (grub_strcmp (term_table[i].name, "graphics") == 0) { 1108 term_table[i].flags &= ~TERM_NEED_INIT; 1109 break; 1110 } 1111 } 1112 1113 graphics_set_splash(splashimage); 1114 1115 if (flags == BUILTIN_CMDLINE && graphics_inited) { 1116 /* 1117 * calling graphics_end() here flickers the screen black. OTOH not 1118 * calling it gets us odd plane interlacing / early palette switching ? 1119 * ideally one should figure out how to double buffer and switch... 1120 */ 1121 graphics_end(); 1122 graphics_init(); 1123 graphics_cls(); 1124 } 1125 1126 /* 1127 * This call does not explicitly initialize graphics mode, but rather 1128 * simply sets the terminal type unless we're in command line mode and 1129 * call this function while in terminal mode. 1130 */ 1131 terminal_func("graphics", flags); 1132 1133 reset_term = 0; 1134 1135 return 0; 1136 } 1137 1138 static struct builtin builtin_splashimage = 1139 { 1140 "splashimage", 1141 splashimage_func, 1142 BUILTIN_CMDLINE | BUILTIN_MENU | BUILTIN_SCRIPT | BUILTIN_HELP_LIST, 1143 "splashimage FILE", 1144 "Load FILE as the background image when in graphics mode." 1145 }; 1146 1147 1148 /* foreground */ 1149 static int 1150 foreground_func(char *arg, int flags) 1151 { 1152 if (grub_strlen(arg) == 6) { 1153 int r = ((hex(arg[0]) << 4) | hex(arg[1])) >> 2; 1154 int g = ((hex(arg[2]) << 4) | hex(arg[3])) >> 2; 1155 int b = ((hex(arg[4]) << 4) | hex(arg[5])) >> 2; 1156 1157 foreground = (r << 16) | (g << 8) | b; 1158 if (graphics_inited) 1159 graphics_set_palette(15, r, g, b); 1160 1161 return (0); 1162 } 1163 1164 return (1); 1165 } 1166 1167 static struct builtin builtin_foreground = 1168 { 1169 "foreground", 1170 foreground_func, 1171 BUILTIN_CMDLINE | BUILTIN_MENU | BUILTIN_HELP_LIST | BUILTIN_SCRIPT, 1172 "foreground RRGGBB", 1173 "Sets the foreground color when in graphics mode." 1174 "RR is red, GG is green, and BB blue. Numbers must be in hexadecimal." 1175 }; 1176 1177 1178 /* background */ 1179 static int 1180 background_func(char *arg, int flags) 1181 { 1182 if (grub_strlen(arg) == 6) { 1183 int r = ((hex(arg[0]) << 4) | hex(arg[1])) >> 2; 1184 int g = ((hex(arg[2]) << 4) | hex(arg[3])) >> 2; 1185 int b = ((hex(arg[4]) << 4) | hex(arg[5])) >> 2; 1186 1187 background = (r << 16) | (g << 8) | b; 1188 if (graphics_inited) 1189 graphics_set_palette(0, r, g, b); 1190 return (0); 1191 } 1192 1193 return (1); 1194 } 1195 1196 static struct builtin builtin_background = 1197 { 1198 "background", 1199 background_func, 1200 BUILTIN_CMDLINE | BUILTIN_MENU | BUILTIN_HELP_LIST | BUILTIN_SCRIPT, 1201 "background RRGGBB", 1202 "Sets the background color when in graphics mode." 1203 "RR is red, GG is green, and BB blue. Numbers must be in hexadecimal." 1204 }; 1205 1206 #endif /* SUPPORT_GRAPHICS */ 1207 1208 1209 /* clear */ 1210 static int 1211 clear_func() 1212 { 1213 if (current_term->cls) 1214 current_term->cls(); 1215 1216 return 0; 1217 } 1218 1219 static struct builtin builtin_clear = 1220 { 1221 "clear", 1222 clear_func, 1223 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 1224 "clear", 1225 "Clear the screen" 1226 }; 1227 1228 /* displayapm */ 1229 static int 1230 displayapm_func (char *arg, int flags) 1231 { 1232 if (mbi.flags & MB_INFO_APM_TABLE) 1233 { 1234 grub_printf ("APM BIOS information:\n" 1235 " Version: 0x%x\n" 1236 " 32-bit CS: 0x%x\n" 1237 " Offset: 0x%x\n" 1238 " 16-bit CS: 0x%x\n" 1239 " 16-bit DS: 0x%x\n" 1240 " 32-bit CS length: 0x%x\n" 1241 " 16-bit CS length: 0x%x\n" 1242 " 16-bit DS length: 0x%x\n", 1243 (unsigned) apm_bios_info.version, 1244 (unsigned) apm_bios_info.cseg, 1245 apm_bios_info.offset, 1246 (unsigned) apm_bios_info.cseg_16, 1247 (unsigned) apm_bios_info.dseg_16, 1248 (unsigned) apm_bios_info.cseg_len, 1249 (unsigned) apm_bios_info.cseg_16_len, 1250 (unsigned) apm_bios_info.dseg_16_len); 1251 } 1252 else 1253 { 1254 grub_printf ("No APM BIOS found or probe failed\n"); 1255 } 1256 1257 return 0; 1258 } 1259 1260 static struct builtin builtin_displayapm = 1261 { 1262 "displayapm", 1263 displayapm_func, 1264 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 1265 "displayapm", 1266 "Display APM BIOS information." 1267 }; 1268 1269 1270 /* displaymem */ 1271 static int 1272 displaymem_func (char *arg, int flags) 1273 { 1274 if (get_eisamemsize () != -1) 1275 grub_printf (" EISA Memory BIOS Interface is present\n"); 1276 if (get_mmap_entry ((void *) SCRATCHADDR, 0) != 0 1277 || *((int *) SCRATCHADDR) != 0) 1278 grub_printf (" Address Map BIOS Interface is present\n"); 1279 1280 grub_printf (" Lower memory: %uK, " 1281 "Upper memory (to first chipset hole): %uK\n", 1282 mbi.mem_lower, mbi.mem_upper); 1283 1284 if (min_mem64 != 0) 1285 grub_printf (" Memory limit for 64-bit ISADIR expansion: %uMB\n", 1286 min_mem64); 1287 1288 if (mbi.flags & MB_INFO_MEM_MAP) 1289 { 1290 struct AddrRangeDesc *map = (struct AddrRangeDesc *) mbi.mmap_addr; 1291 int end_addr = mbi.mmap_addr + mbi.mmap_length; 1292 1293 grub_printf (" [Address Range Descriptor entries " 1294 "immediately follow (values are 64-bit)]\n"); 1295 while (end_addr > (int) map) 1296 { 1297 char *str; 1298 1299 if (map->Type == MB_ARD_MEMORY) 1300 str = "Usable RAM"; 1301 else 1302 str = "Reserved"; 1303 grub_printf (" %s: Base Address: 0x%x X 4GB + 0x%x,\n" 1304 " Length: 0x%x X 4GB + 0x%x bytes\n", 1305 str, 1306 (unsigned long) (map->BaseAddr >> 32), 1307 (unsigned long) (map->BaseAddr & 0xFFFFFFFF), 1308 (unsigned long) (map->Length >> 32), 1309 (unsigned long) (map->Length & 0xFFFFFFFF)); 1310 1311 map = ((struct AddrRangeDesc *) (((int) map) + 4 + map->size)); 1312 } 1313 } 1314 1315 return 0; 1316 } 1317 1318 static struct builtin builtin_displaymem = 1319 { 1320 "displaymem", 1321 displaymem_func, 1322 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 1323 "displaymem", 1324 "Display what GRUB thinks the system address space map of the" 1325 " machine is, including all regions of physical RAM installed." 1326 }; 1327 1328 1329 /* dump FROM TO */ 1330 #ifdef GRUB_UTIL 1331 static int 1332 dump_func (char *arg, int flags) 1333 { 1334 char *from, *to; 1335 FILE *fp; 1336 char c; 1337 1338 from = arg; 1339 to = skip_to (0, arg); 1340 if (! *from || ! *to) 1341 { 1342 errnum = ERR_BAD_ARGUMENT; 1343 return 1; 1344 } 1345 1346 nul_terminate (from); 1347 nul_terminate (to); 1348 1349 if (! grub_open (from)) 1350 return 1; 1351 1352 fp = fopen (to, "w"); 1353 if (! fp) 1354 { 1355 errnum = ERR_WRITE; 1356 return 1; 1357 } 1358 1359 while (grub_read (&c, 1)) 1360 if (fputc (c, fp) == EOF) 1361 { 1362 errnum = ERR_WRITE; 1363 fclose (fp); 1364 return 1; 1365 } 1366 1367 if (fclose (fp) == EOF) 1368 { 1369 errnum = ERR_WRITE; 1370 return 1; 1371 } 1372 1373 grub_close (); 1374 return 0; 1375 } 1376 1377 static struct builtin builtin_dump = 1378 { 1379 "dump", 1380 dump_func, 1381 BUILTIN_CMDLINE, 1382 "dump FROM TO", 1383 "Dump the contents of the file FROM to the file TO. FROM must be" 1384 " a GRUB file and TO must be an OS file." 1385 }; 1386 #endif /* GRUB_UTIL */ 1387 1388 1389 static char embed_info[32]; 1390 /* embed */ 1391 /* Embed a Stage 1.5 in the first cylinder after MBR or in the 1392 bootloader block in a FFS. */ 1393 static int 1394 embed_func (char *arg, int flags) 1395 { 1396 char *stage1_5; 1397 char *device; 1398 char *stage1_5_buffer = (char *) RAW_ADDR (0x100000); 1399 int len, size; 1400 int sector; 1401 1402 stage1_5 = arg; 1403 device = skip_to (0, stage1_5); 1404 1405 /* Open a Stage 1.5. */ 1406 if (! grub_open (stage1_5)) 1407 return 1; 1408 1409 /* Read the whole of the Stage 1.5. */ 1410 len = grub_read (stage1_5_buffer, -1); 1411 grub_close (); 1412 1413 if (errnum) 1414 return 1; 1415 1416 size = (len + SECTOR_SIZE - 1) / SECTOR_SIZE; 1417 1418 /* Get the device where the Stage 1.5 will be embedded. */ 1419 set_device (device); 1420 if (errnum) 1421 return 1; 1422 1423 if (current_partition == 0xFFFFFF) 1424 { 1425 /* Embed it after the MBR. */ 1426 1427 char mbr[SECTOR_SIZE]; 1428 char ezbios_check[2*SECTOR_SIZE]; 1429 int i; 1430 1431 /* Open the partition. */ 1432 if (! open_partition ()) 1433 return 1; 1434 1435 /* No floppy has MBR. */ 1436 if (! (current_drive & 0x80)) 1437 { 1438 errnum = ERR_DEV_VALUES; 1439 return 1; 1440 } 1441 1442 /* Read the MBR of CURRENT_DRIVE. */ 1443 if (! rawread (current_drive, PC_MBR_SECTOR, 0, SECTOR_SIZE, mbr)) 1444 return 1; 1445 1446 /* Sanity check. */ 1447 if (! PC_MBR_CHECK_SIG (mbr)) 1448 { 1449 errnum = ERR_BAD_PART_TABLE; 1450 return 1; 1451 } 1452 1453 /* Check if the disk can store the Stage 1.5. */ 1454 for (i = 0; i < 4; i++) 1455 if (PC_SLICE_TYPE (mbr, i) && PC_SLICE_START (mbr, i) - 1 < size) 1456 { 1457 errnum = ERR_NO_DISK_SPACE; 1458 return 1; 1459 } 1460 1461 /* Check for EZ-BIOS signature. It should be in the third 1462 * sector, but due to remapping it can appear in the second, so 1463 * load and check both. 1464 */ 1465 if (! rawread (current_drive, 1, 0, 2 * SECTOR_SIZE, ezbios_check)) 1466 return 1; 1467 1468 if (! memcmp (ezbios_check + 3, "AERMH", 5) 1469 || ! memcmp (ezbios_check + 512 + 3, "AERMH", 5)) 1470 { 1471 /* The space after the MBR is used by EZ-BIOS which we must 1472 * not overwrite. 1473 */ 1474 errnum = ERR_NO_DISK_SPACE; 1475 return 1; 1476 } 1477 1478 sector = 1; 1479 } 1480 else 1481 { 1482 /* Embed it in the bootloader block in the filesystem. */ 1483 int start_sector; 1484 1485 /* Open the partition. */ 1486 if (! open_device ()) 1487 return 1; 1488 1489 /* Check if the current slice supports embedding. */ 1490 if (fsys_table[fsys_type].embed_func == 0 1491 || ! fsys_table[fsys_type].embed_func (&start_sector, size)) 1492 { 1493 errnum = ERR_DEV_VALUES; 1494 return 1; 1495 } 1496 1497 sector = part_start + start_sector; 1498 } 1499 1500 /* Clear the cache. */ 1501 buf_track = BUF_CACHE_INVALID; 1502 1503 /* Now perform the embedding. */ 1504 if (! devwrite (sector - part_start, size, stage1_5_buffer)) 1505 return 1; 1506 1507 grub_printf (" %d sectors are embedded.\n", size); 1508 grub_sprintf (embed_info, "%d+%d", sector - part_start, size); 1509 return 0; 1510 } 1511 1512 static struct builtin builtin_embed = 1513 { 1514 "embed", 1515 embed_func, 1516 BUILTIN_CMDLINE, 1517 "embed STAGE1_5 DEVICE", 1518 "Embed the Stage 1.5 STAGE1_5 in the sectors after MBR if DEVICE" 1519 " is a drive, or in the \"bootloader\" area if DEVICE is a FFS partition." 1520 " Print the number of sectors which STAGE1_5 occupies if successful." 1521 }; 1522 1523 1524 /* fallback */ 1525 static int 1526 fallback_func (char *arg, int flags) 1527 { 1528 int i = 0; 1529 1530 while (*arg) 1531 { 1532 int entry; 1533 int j; 1534 1535 if (! safe_parse_maxint (&arg, &entry)) 1536 return 1; 1537 1538 /* Remove duplications to prevent infinite looping. */ 1539 for (j = 0; j < i; j++) 1540 if (entry == fallback_entries[j]) 1541 break; 1542 if (j != i) 1543 continue; 1544 1545 fallback_entries[i++] = entry; 1546 if (i == MAX_FALLBACK_ENTRIES) 1547 break; 1548 1549 arg = skip_to (0, arg); 1550 } 1551 1552 if (i < MAX_FALLBACK_ENTRIES) 1553 fallback_entries[i] = -1; 1554 1555 fallback_entryno = (i == 0) ? -1 : 0; 1556 1557 return 0; 1558 } 1559 1560 static struct builtin builtin_fallback = 1561 { 1562 "fallback", 1563 fallback_func, 1564 BUILTIN_MENU, 1565 #if 0 1566 "fallback NUM...", 1567 "Go into unattended boot mode: if the default boot entry has any" 1568 " errors, instead of waiting for the user to do anything, it" 1569 " immediately starts over using the NUM entry (same numbering as the" 1570 " `default' command). This obviously won't help if the machine" 1571 " was rebooted by a kernel that GRUB loaded." 1572 #endif 1573 }; 1574 1575 1576 1577 void 1578 set_root (char *root, unsigned long drive, unsigned long part) 1579 { 1580 int bsd_part = (part >> 8) & 0xFF; 1581 int pc_slice = part >> 16; 1582 1583 if (bsd_part == 0xFF) { 1584 grub_sprintf (root, "(hd%d,%d)\n", drive - 0x80, pc_slice); 1585 } else { 1586 grub_sprintf (root, "(hd%d,%d,%c)\n", 1587 drive - 0x80, pc_slice, bsd_part + 'a'); 1588 } 1589 } 1590 1591 static int 1592 find_common (char *arg, char *root, int for_root, int flags) 1593 { 1594 char *filename = NULL; 1595 static char argpart[32]; 1596 static char device[32]; 1597 char *tmp_argpart = NULL; 1598 unsigned long drive; 1599 unsigned long tmp_drive = saved_drive; 1600 unsigned long tmp_partition = saved_partition; 1601 int got_file = 0; 1602 static char bootsign[BOOTSIGN_LEN]; 1603 1604 /* 1605 * If argument has partition information (findroot command only), then 1606 * it can't be a floppy 1607 */ 1608 if (for_root && arg[0] == '(') { 1609 tmp_argpart = grub_strchr(arg + 1, ','); 1610 if (tmp_argpart == NULL) 1611 goto out; 1612 grub_strcpy(argpart, tmp_argpart); 1613 *tmp_argpart = '\0'; 1614 arg++; 1615 grub_sprintf(bootsign, "%s/%s", BOOTSIGN_DIR, arg); 1616 filename = bootsign; 1617 goto harddisk; 1618 } else if (for_root && !grub_strchr(arg, '/')) { 1619 /* Boot signature without partition/slice information */ 1620 grub_sprintf(bootsign, "%s/%s", BOOTSIGN_DIR, arg); 1621 filename = bootsign; 1622 } else { 1623 /* plain vanilla find cmd */ 1624 filename = arg; 1625 } 1626 1627 /* Floppies. */ 1628 for (drive = 0; drive < 8; drive++) 1629 { 1630 current_drive = drive; 1631 current_partition = 0xFFFFFF; 1632 1633 if (open_device ()) 1634 { 1635 saved_drive = current_drive; 1636 saved_partition = current_partition; 1637 if (grub_open (filename)) 1638 { 1639 grub_close (); 1640 got_file = 1; 1641 if (for_root) { 1642 grub_sprintf(root, "(fd%d)", drive); 1643 goto out; 1644 } else 1645 grub_printf (" (fd%d)\n", drive); 1646 } 1647 } 1648 1649 errnum = ERR_NONE; 1650 } 1651 1652 harddisk: 1653 /* Hard disks. */ 1654 for (drive = 0x80; drive < 0x88; drive++) 1655 { 1656 unsigned long part = 0xFFFFFF; 1657 unsigned long start, len, offset, ext_offset, gpt_offset; 1658 int type, entry, gpt_count, gpt_size; 1659 char buf[SECTOR_SIZE]; 1660 1661 if (for_root && tmp_argpart) { 1662 grub_sprintf(device, "(hd%d%s", drive - 0x80, argpart); 1663 set_device(device); 1664 errnum = ERR_NONE; 1665 part = current_partition; 1666 if (open_device ()) { 1667 saved_drive = current_drive; 1668 saved_partition = current_partition; 1669 errnum = ERR_NONE; 1670 if (grub_open (filename)) { 1671 grub_close (); 1672 got_file = 1; 1673 if (is_zfs_mount == 0) { 1674 set_root(root, current_drive, current_partition); 1675 goto out; 1676 } else { 1677 best_drive = current_drive; 1678 best_part = current_partition; 1679 } 1680 } 1681 } 1682 errnum = ERR_NONE; 1683 continue; 1684 } 1685 current_drive = drive; 1686 while (next_partition (drive, 0xFFFFFF, &part, &type, 1687 &start, &len, &offset, &entry, 1688 &ext_offset, &gpt_offset, 1689 &gpt_count, &gpt_size, buf)) 1690 { 1691 if (type != PC_SLICE_TYPE_NONE 1692 && ! IS_PC_SLICE_TYPE_BSD (type) 1693 && ! IS_PC_SLICE_TYPE_EXTENDED (type)) 1694 { 1695 current_partition = part; 1696 if (open_device ()) 1697 { 1698 saved_drive = current_drive; 1699 saved_partition = current_partition; 1700 if (grub_open (filename)) 1701 { 1702 char tmproot[32]; 1703 1704 grub_close (); 1705 got_file = 1; 1706 set_root(tmproot, drive, part); 1707 if (for_root) { 1708 grub_memcpy(root, tmproot, sizeof(tmproot)); 1709 if (is_zfs_mount == 0) { 1710 goto out; 1711 } else { 1712 best_drive = current_drive; 1713 best_part = current_partition; 1714 } 1715 } else { 1716 grub_printf("%s", tmproot); 1717 } 1718 } 1719 } 1720 } 1721 1722 /* We want to ignore any error here. */ 1723 errnum = ERR_NONE; 1724 } 1725 1726 /* next_partition always sets ERRNUM in the last call, so clear 1727 it. */ 1728 errnum = ERR_NONE; 1729 } 1730 1731 out: 1732 if (is_zfs_mount && for_root) { 1733 set_root(root, best_drive, best_part); 1734 buf_drive = -1; 1735 } else { 1736 saved_drive = tmp_drive; 1737 saved_partition = tmp_partition; 1738 } 1739 if (tmp_argpart) 1740 *tmp_argpart = ','; 1741 1742 if (got_file) 1743 { 1744 errnum = ERR_NONE; 1745 return 0; 1746 } 1747 1748 errnum = ERR_FILE_NOT_FOUND; 1749 return 1; 1750 } 1751 1752 /* find */ 1753 /* Search for the filename ARG in all of partitions. */ 1754 static int 1755 find_func (char *arg, int flags) 1756 { 1757 return (find_common(arg, NULL, 0, flags)); 1758 } 1759 1760 static struct builtin builtin_find = 1761 { 1762 "find", 1763 find_func, 1764 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 1765 "find FILENAME", 1766 "Search for the filename FILENAME in all of partitions and print the list of" 1767 " the devices which contain the file." 1768 }; 1769 1770 1771 /* fstest */ 1772 static int 1773 fstest_func (char *arg, int flags) 1774 { 1775 if (disk_read_hook) 1776 { 1777 disk_read_hook = NULL; 1778 printf (" Filesystem tracing is now off\n"); 1779 } 1780 else 1781 { 1782 disk_read_hook = disk_read_print_func; 1783 printf (" Filesystem tracing is now on\n"); 1784 } 1785 1786 return 0; 1787 } 1788 1789 static struct builtin builtin_fstest = 1790 { 1791 "fstest", 1792 fstest_func, 1793 BUILTIN_CMDLINE, 1794 "fstest", 1795 "Toggle filesystem test mode." 1796 }; 1797 1798 1799 /* geometry */ 1800 static int 1801 geometry_func (char *arg, int flags) 1802 { 1803 struct geometry geom; 1804 char *msg; 1805 char *device = arg; 1806 #ifdef GRUB_UTIL 1807 char *ptr; 1808 #endif 1809 1810 /* Get the device number. */ 1811 set_device (device); 1812 if (errnum) 1813 return 1; 1814 1815 /* Check for the geometry. */ 1816 if (get_diskinfo (current_drive, &geom)) 1817 { 1818 errnum = ERR_NO_DISK; 1819 return 1; 1820 } 1821 1822 /* Attempt to read the first sector, because some BIOSes turns out not 1823 to support LBA even though they set the bit 0 in the support 1824 bitmap, only after reading something actually. */ 1825 if (biosdisk (BIOSDISK_READ, current_drive, &geom, 0, 1, SCRATCHSEG)) 1826 { 1827 errnum = ERR_READ; 1828 return 1; 1829 } 1830 1831 #ifdef GRUB_UTIL 1832 ptr = skip_to (0, device); 1833 if (*ptr) 1834 { 1835 char *cylinder, *head, *sector, *total_sector; 1836 int num_cylinder, num_head, num_sector, num_total_sector; 1837 1838 cylinder = ptr; 1839 head = skip_to (0, cylinder); 1840 sector = skip_to (0, head); 1841 total_sector = skip_to (0, sector); 1842 if (! safe_parse_maxint (&cylinder, &num_cylinder) 1843 || ! safe_parse_maxint (&head, &num_head) 1844 || ! safe_parse_maxint (§or, &num_sector)) 1845 return 1; 1846 1847 disks[current_drive].cylinders = num_cylinder; 1848 disks[current_drive].heads = num_head; 1849 disks[current_drive].sectors = num_sector; 1850 1851 if (safe_parse_maxint (&total_sector, &num_total_sector)) 1852 disks[current_drive].total_sectors = num_total_sector; 1853 else 1854 disks[current_drive].total_sectors 1855 = num_cylinder * num_head * num_sector; 1856 errnum = 0; 1857 1858 geom = disks[current_drive]; 1859 buf_drive = -1; 1860 } 1861 #endif /* GRUB_UTIL */ 1862 1863 #ifdef GRUB_UTIL 1864 msg = device_map[current_drive]; 1865 #else 1866 if (geom.flags & BIOSDISK_FLAG_LBA_EXTENSION) 1867 msg = "LBA"; 1868 else 1869 msg = "CHS"; 1870 #endif 1871 1872 grub_printf ("drive 0x%x: C/H/S = %d/%d/%d, " 1873 "The number of sectors = %u, %s\n", 1874 current_drive, 1875 geom.cylinders, geom.heads, geom.sectors, 1876 geom.total_sectors, msg); 1877 real_open_partition (1); 1878 1879 return 0; 1880 } 1881 1882 static struct builtin builtin_geometry = 1883 { 1884 "geometry", 1885 geometry_func, 1886 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 1887 "geometry DRIVE [CYLINDER HEAD SECTOR [TOTAL_SECTOR]]", 1888 "Print the information for a drive DRIVE. In the grub shell, you can" 1889 " set the geometry of the drive arbitrarily. The number of the cylinders," 1890 " the one of the heads, the one of the sectors and the one of the total" 1891 " sectors are set to CYLINDER, HEAD, SECTOR and TOTAL_SECTOR," 1892 " respectively. If you omit TOTAL_SECTOR, then it will be calculated based" 1893 " on the C/H/S values automatically." 1894 }; 1895 1896 1897 /* halt */ 1898 static int 1899 halt_func (char *arg, int flags) 1900 { 1901 int no_apm; 1902 1903 no_apm = (grub_memcmp (arg, "--no-apm", 8) == 0); 1904 grub_halt (no_apm); 1905 1906 /* Never reach here. */ 1907 return 1; 1908 } 1909 1910 static struct builtin builtin_halt = 1911 { 1912 "halt", 1913 halt_func, 1914 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 1915 "halt [--no-apm]", 1916 "Halt your system. If APM is avaiable on it, turn off the power using" 1917 " the APM BIOS, unless you specify the option `--no-apm'." 1918 }; 1919 1920 1921 /* help */ 1922 #define MAX_SHORT_DOC_LEN 39 1923 #define MAX_LONG_DOC_LEN 66 1924 1925 static int 1926 help_func (char *arg, int flags) 1927 { 1928 int all = 0; 1929 1930 if (grub_memcmp (arg, "--all", sizeof ("--all") - 1) == 0) 1931 { 1932 all = 1; 1933 arg = skip_to (0, arg); 1934 } 1935 1936 if (! *arg) 1937 { 1938 /* Invoked with no argument. Print the list of the short docs. */ 1939 struct builtin **builtin; 1940 int left = 1; 1941 1942 for (builtin = builtin_table; *builtin != 0; builtin++) 1943 { 1944 int len; 1945 int i; 1946 1947 /* If this cannot be used in the command-line interface, 1948 skip this. */ 1949 if (! ((*builtin)->flags & BUILTIN_CMDLINE)) 1950 continue; 1951 1952 /* If this doesn't need to be listed automatically and "--all" 1953 is not specified, skip this. */ 1954 if (! all && ! ((*builtin)->flags & BUILTIN_HELP_LIST)) 1955 continue; 1956 1957 len = grub_strlen ((*builtin)->short_doc); 1958 /* If the length of SHORT_DOC is too long, truncate it. */ 1959 if (len > MAX_SHORT_DOC_LEN - 1) 1960 len = MAX_SHORT_DOC_LEN - 1; 1961 1962 for (i = 0; i < len; i++) 1963 grub_putchar ((*builtin)->short_doc[i]); 1964 1965 for (; i < MAX_SHORT_DOC_LEN; i++) 1966 grub_putchar (' '); 1967 1968 if (! left) 1969 grub_putchar ('\n'); 1970 1971 left = ! left; 1972 } 1973 1974 /* If the last entry was at the left column, no newline was printed 1975 at the end. */ 1976 if (! left) 1977 grub_putchar ('\n'); 1978 } 1979 else 1980 { 1981 /* Invoked with one or more patterns. */ 1982 do 1983 { 1984 struct builtin **builtin; 1985 char *next_arg; 1986 1987 /* Get the next argument. */ 1988 next_arg = skip_to (0, arg); 1989 1990 /* Terminate ARG. */ 1991 nul_terminate (arg); 1992 1993 for (builtin = builtin_table; *builtin; builtin++) 1994 { 1995 /* Skip this if this is only for the configuration file. */ 1996 if (! ((*builtin)->flags & BUILTIN_CMDLINE)) 1997 continue; 1998 1999 if (substring (arg, (*builtin)->name) < 1) 2000 { 2001 char *doc = (*builtin)->long_doc; 2002 2003 /* At first, print the name and the short doc. */ 2004 grub_printf ("%s: %s\n", 2005 (*builtin)->name, (*builtin)->short_doc); 2006 2007 /* Print the long doc. */ 2008 while (*doc) 2009 { 2010 int len = grub_strlen (doc); 2011 int i; 2012 2013 /* If LEN is too long, fold DOC. */ 2014 if (len > MAX_LONG_DOC_LEN) 2015 { 2016 /* Fold this line at the position of a space. */ 2017 for (len = MAX_LONG_DOC_LEN; len > 0; len--) 2018 if (doc[len - 1] == ' ') 2019 break; 2020 } 2021 2022 grub_printf (" "); 2023 for (i = 0; i < len; i++) 2024 grub_putchar (*doc++); 2025 grub_putchar ('\n'); 2026 } 2027 } 2028 } 2029 2030 arg = next_arg; 2031 } 2032 while (*arg); 2033 } 2034 2035 return 0; 2036 } 2037 2038 static struct builtin builtin_help = 2039 { 2040 "help", 2041 help_func, 2042 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 2043 "help [--all] [PATTERN ...]", 2044 "Display helpful information about builtin commands. Not all commands" 2045 " aren't shown without the option `--all'." 2046 }; 2047 2048 2049 /* hiddenmenu */ 2050 static int 2051 hiddenmenu_func (char *arg, int flags) 2052 { 2053 show_menu = 0; 2054 return 0; 2055 } 2056 2057 static struct builtin builtin_hiddenmenu = 2058 { 2059 "hiddenmenu", 2060 hiddenmenu_func, 2061 BUILTIN_MENU, 2062 #if 0 2063 "hiddenmenu", 2064 "Hide the menu." 2065 #endif 2066 }; 2067 2068 2069 /* hide */ 2070 static int 2071 hide_func (char *arg, int flags) 2072 { 2073 if (! set_device (arg)) 2074 return 1; 2075 2076 if (! set_partition_hidden_flag (1)) 2077 return 1; 2078 2079 return 0; 2080 } 2081 2082 static struct builtin builtin_hide = 2083 { 2084 "hide", 2085 hide_func, 2086 BUILTIN_CMDLINE | BUILTIN_MENU | BUILTIN_HELP_LIST, 2087 "hide PARTITION", 2088 "Hide PARTITION by setting the \"hidden\" bit in" 2089 " its partition type code." 2090 }; 2091 2092 2093 #ifdef SUPPORT_NETBOOT 2094 /* ifconfig */ 2095 static int 2096 ifconfig_func (char *arg, int flags) 2097 { 2098 char *svr = 0, *ip = 0, *gw = 0, *sm = 0; 2099 2100 if (! grub_eth_probe ()) 2101 { 2102 grub_printf ("No ethernet card found.\n"); 2103 errnum = ERR_DEV_VALUES; 2104 return 1; 2105 } 2106 2107 while (*arg) 2108 { 2109 if (! grub_memcmp ("--server=", arg, sizeof ("--server=") - 1)) 2110 svr = arg + sizeof("--server=") - 1; 2111 else if (! grub_memcmp ("--address=", arg, sizeof ("--address=") - 1)) 2112 ip = arg + sizeof ("--address=") - 1; 2113 else if (! grub_memcmp ("--gateway=", arg, sizeof ("--gateway=") - 1)) 2114 gw = arg + sizeof ("--gateway=") - 1; 2115 else if (! grub_memcmp ("--mask=", arg, sizeof("--mask=") - 1)) 2116 sm = arg + sizeof ("--mask=") - 1; 2117 else 2118 { 2119 errnum = ERR_BAD_ARGUMENT; 2120 return 1; 2121 } 2122 2123 arg = skip_to (0, arg); 2124 } 2125 2126 if (! ifconfig (ip, sm, gw, svr)) 2127 { 2128 errnum = ERR_BAD_ARGUMENT; 2129 return 1; 2130 } 2131 2132 print_network_configuration (); 2133 return 0; 2134 } 2135 2136 static struct builtin builtin_ifconfig = 2137 { 2138 "ifconfig", 2139 ifconfig_func, 2140 BUILTIN_CMDLINE | BUILTIN_MENU | BUILTIN_HELP_LIST, 2141 "ifconfig [--address=IP] [--gateway=IP] [--mask=MASK] [--server=IP]", 2142 "Configure the IP address, the netmask, the gateway and the server" 2143 " address or print current network configuration." 2144 }; 2145 #endif /* SUPPORT_NETBOOT */ 2146 2147 2148 /* impsprobe */ 2149 static int 2150 impsprobe_func (char *arg, int flags) 2151 { 2152 #ifdef GRUB_UTIL 2153 /* In the grub shell, we cannot probe IMPS. */ 2154 errnum = ERR_UNRECOGNIZED; 2155 return 1; 2156 #else /* ! GRUB_UTIL */ 2157 if (!imps_probe ()) 2158 printf (" No MPS information found or probe failed\n"); 2159 2160 return 0; 2161 #endif /* ! GRUB_UTIL */ 2162 } 2163 2164 static struct builtin builtin_impsprobe = 2165 { 2166 "impsprobe", 2167 impsprobe_func, 2168 BUILTIN_CMDLINE, 2169 "impsprobe", 2170 "Probe the Intel Multiprocessor Specification 1.1 or 1.4" 2171 " configuration table and boot the various CPUs which are found into" 2172 " a tight loop." 2173 }; 2174 2175 /* initrd */ 2176 static int 2177 initrd_func (char *arg, int flags) 2178 { 2179 switch (kernel_type) 2180 { 2181 case KERNEL_TYPE_LINUX: 2182 case KERNEL_TYPE_BIG_LINUX: 2183 if (! load_initrd (arg)) 2184 return 1; 2185 break; 2186 2187 default: 2188 errnum = ERR_NEED_LX_KERNEL; 2189 return 1; 2190 } 2191 2192 return 0; 2193 } 2194 2195 static struct builtin builtin_initrd = 2196 { 2197 "initrd", 2198 initrd_func, 2199 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 2200 "initrd FILE [ARG ...]", 2201 "Load an initial ramdisk FILE for a Linux format boot image and set the" 2202 " appropriate parameters in the Linux setup area in memory." 2203 }; 2204 2205 2206 /* install */ 2207 static int 2208 install_func (char *arg, int flags) 2209 { 2210 char *stage1_file, *dest_dev, *file, *addr; 2211 char *stage1_buffer = (char *) RAW_ADDR (0x100000); 2212 char *stage2_buffer = stage1_buffer + SECTOR_SIZE; 2213 char *old_sect = stage2_buffer + SECTOR_SIZE; 2214 char *stage2_first_buffer = old_sect + SECTOR_SIZE; 2215 char *stage2_second_buffer = stage2_first_buffer + SECTOR_SIZE; 2216 /* XXX: Probably SECTOR_SIZE is reasonable. */ 2217 char *config_filename = stage2_second_buffer + SECTOR_SIZE; 2218 char *dummy = config_filename + SECTOR_SIZE; 2219 int new_drive = GRUB_INVALID_DRIVE; 2220 int dest_drive, dest_partition; 2221 unsigned int dest_sector; 2222 int src_drive, src_partition, src_part_start; 2223 int i; 2224 struct geometry dest_geom, src_geom; 2225 unsigned int saved_sector; 2226 unsigned int stage2_first_sector, stage2_second_sector; 2227 char *ptr; 2228 int installaddr, installlist; 2229 /* Point to the location of the name of a configuration file in Stage 2. */ 2230 char *config_file_location; 2231 /* If FILE is a Stage 1.5? */ 2232 int is_stage1_5 = 0; 2233 /* Must call grub_close? */ 2234 int is_open = 0; 2235 /* If LBA is forced? */ 2236 int is_force_lba = 0; 2237 /* Was the last sector full? */ 2238 int last_length = SECTOR_SIZE; 2239 2240 #ifdef GRUB_UTIL 2241 /* If the Stage 2 is in a partition mounted by an OS, this will store 2242 the filename under the OS. */ 2243 char *stage2_os_file = 0; 2244 #endif /* GRUB_UTIL */ 2245 2246 auto void disk_read_savesect_func (unsigned int sector, int offset, 2247 int length); 2248 auto void disk_read_blocklist_func (unsigned int sector, int offset, 2249 int length); 2250 2251 /* Save the first sector of Stage2 in STAGE2_SECT. */ 2252 auto void disk_read_savesect_func (unsigned int sector, int offset, 2253 int length) 2254 { 2255 if (debug) 2256 printf ("[%u]", sector); 2257 2258 /* ReiserFS has files which sometimes contain data not aligned 2259 on sector boundaries. Returning an error is better than 2260 silently failing. */ 2261 if (offset != 0 || length != SECTOR_SIZE) 2262 errnum = ERR_UNALIGNED; 2263 2264 saved_sector = sector; 2265 } 2266 2267 /* Write SECTOR to INSTALLLIST, and update INSTALLADDR and 2268 INSTALLSECT. */ 2269 auto void disk_read_blocklist_func (unsigned int sector, int offset, 2270 int length) 2271 { 2272 if (debug) 2273 printf("[%u]", sector); 2274 2275 if (offset != 0 || last_length != SECTOR_SIZE) 2276 { 2277 /* We found a non-sector-aligned data block. */ 2278 errnum = ERR_UNALIGNED; 2279 return; 2280 } 2281 2282 last_length = length; 2283 2284 if (*((unsigned long *) (installlist - 4)) 2285 + *((unsigned short *) installlist) != sector 2286 || installlist == (int) stage2_first_buffer + SECTOR_SIZE + 4) 2287 { 2288 installlist -= 8; 2289 2290 if (*((unsigned long *) (installlist - 8))) 2291 errnum = ERR_WONT_FIT; 2292 else 2293 { 2294 *((unsigned short *) (installlist + 2)) = (installaddr >> 4); 2295 *((unsigned long *) (installlist - 4)) = sector; 2296 } 2297 } 2298 2299 *((unsigned short *) installlist) += 1; 2300 installaddr += 512; 2301 } 2302 2303 /* First, check the GNU-style long option. */ 2304 while (1) 2305 { 2306 if (grub_memcmp ("--force-lba", arg, sizeof ("--force-lba") - 1) == 0) 2307 { 2308 is_force_lba = 1; 2309 arg = skip_to (0, arg); 2310 } 2311 #ifdef GRUB_UTIL 2312 else if (grub_memcmp ("--stage2=", arg, sizeof ("--stage2=") - 1) == 0) 2313 { 2314 stage2_os_file = arg + sizeof ("--stage2=") - 1; 2315 arg = skip_to (0, arg); 2316 nul_terminate (stage2_os_file); 2317 } 2318 #endif /* GRUB_UTIL */ 2319 else 2320 break; 2321 } 2322 2323 stage1_file = arg; 2324 dest_dev = skip_to (0, stage1_file); 2325 if (*dest_dev == 'd') 2326 { 2327 new_drive = 0; 2328 dest_dev = skip_to (0, dest_dev); 2329 } 2330 file = skip_to (0, dest_dev); 2331 addr = skip_to (0, file); 2332 2333 /* Get the installation address. */ 2334 if (! safe_parse_maxint (&addr, &installaddr)) 2335 { 2336 /* ADDR is not specified. */ 2337 installaddr = 0; 2338 ptr = addr; 2339 errnum = 0; 2340 } 2341 else 2342 ptr = skip_to (0, addr); 2343 2344 #ifndef NO_DECOMPRESSION 2345 /* Do not decompress Stage 1 or Stage 2. */ 2346 no_decompression = 1; 2347 #endif 2348 2349 /* Read Stage 1. */ 2350 is_open = grub_open (stage1_file); 2351 if (! is_open 2352 || ! grub_read (stage1_buffer, SECTOR_SIZE) == SECTOR_SIZE) 2353 goto fail; 2354 2355 /* Read the old sector from DEST_DEV. */ 2356 if (! set_device (dest_dev) 2357 || ! open_partition () 2358 || ! devread (0, 0, SECTOR_SIZE, old_sect)) 2359 goto fail; 2360 2361 /* Store the information for the destination device. */ 2362 dest_drive = current_drive; 2363 dest_partition = current_partition; 2364 dest_geom = buf_geom; 2365 dest_sector = part_start; 2366 2367 /* Copy the possible DOS BPB, 59 bytes at byte offset 3. */ 2368 grub_memmove (stage1_buffer + BOOTSEC_BPB_OFFSET, 2369 old_sect + BOOTSEC_BPB_OFFSET, 2370 BOOTSEC_BPB_LENGTH); 2371 2372 /* If for a hard disk, copy the possible MBR/extended part table. */ 2373 if (dest_drive & 0x80) 2374 grub_memmove (stage1_buffer + STAGE1_WINDOWS_NT_MAGIC, 2375 old_sect + STAGE1_WINDOWS_NT_MAGIC, 2376 STAGE1_PARTEND - STAGE1_WINDOWS_NT_MAGIC); 2377 2378 /* Check for the version and the signature of Stage 1. */ 2379 if (*((short *)(stage1_buffer + STAGE1_VER_MAJ_OFFS)) != COMPAT_VERSION 2380 || (*((unsigned short *) (stage1_buffer + BOOTSEC_SIG_OFFSET)) 2381 != BOOTSEC_SIGNATURE)) 2382 { 2383 errnum = ERR_BAD_VERSION; 2384 goto fail; 2385 } 2386 2387 /* This below is not true any longer. But should we leave this alone? */ 2388 2389 /* If DEST_DRIVE is a floppy, Stage 2 must have the iteration probe 2390 routine. */ 2391 if (! (dest_drive & 0x80) 2392 && (*((unsigned char *) (stage1_buffer + BOOTSEC_PART_OFFSET)) == 0x80 2393 || stage1_buffer[BOOTSEC_PART_OFFSET] == 0)) 2394 { 2395 errnum = ERR_BAD_VERSION; 2396 goto fail; 2397 } 2398 2399 grub_close (); 2400 2401 /* Open Stage 2. */ 2402 is_open = grub_open (file); 2403 if (! is_open) 2404 goto fail; 2405 2406 src_drive = current_drive; 2407 src_partition = current_partition; 2408 src_part_start = part_start; 2409 src_geom = buf_geom; 2410 2411 if (! new_drive) 2412 new_drive = src_drive; 2413 else if (src_drive != dest_drive) 2414 grub_printf ("Warning: the option `d' was not used, but the Stage 1 will" 2415 " be installed on a\ndifferent drive than the drive where" 2416 " the Stage 2 resides.\n"); 2417 2418 /* Set the boot drive. */ 2419 *((unsigned char *) (stage1_buffer + STAGE1_BOOT_DRIVE)) = new_drive; 2420 2421 /* Set the "force LBA" flag. */ 2422 *((unsigned char *) (stage1_buffer + STAGE1_FORCE_LBA)) = is_force_lba; 2423 2424 /* If DEST_DRIVE is a hard disk, enable the workaround, which is 2425 for buggy BIOSes which don't pass boot drive correctly. Instead, 2426 they pass 0x00 or 0x01 even when booted from 0x80. */ 2427 if (dest_drive & BIOS_FLAG_FIXED_DISK) 2428 /* Replace the jmp (2 bytes) with double nop's. */ 2429 *((unsigned short *) (stage1_buffer + STAGE1_BOOT_DRIVE_CHECK)) 2430 = 0x9090; 2431 2432 /* Read the first sector of Stage 2. */ 2433 disk_read_hook = disk_read_savesect_func; 2434 if (grub_read (stage2_first_buffer, SECTOR_SIZE) != SECTOR_SIZE) 2435 goto fail; 2436 2437 stage2_first_sector = saved_sector; 2438 2439 /* Read the second sector of Stage 2. */ 2440 if (grub_read (stage2_second_buffer, SECTOR_SIZE) != SECTOR_SIZE) 2441 goto fail; 2442 2443 stage2_second_sector = saved_sector; 2444 2445 /* Check for the version of Stage 2. */ 2446 if (*((short *) (stage2_second_buffer + STAGE2_VER_MAJ_OFFS)) 2447 != COMPAT_VERSION) 2448 { 2449 errnum = ERR_BAD_VERSION; 2450 goto fail; 2451 } 2452 2453 /* Check for the Stage 2 id. */ 2454 if (stage2_second_buffer[STAGE2_STAGE2_ID] != STAGE2_ID_STAGE2) 2455 is_stage1_5 = 1; 2456 2457 /* If INSTALLADDR is not specified explicitly in the command-line, 2458 determine it by the Stage 2 id. */ 2459 if (! installaddr) 2460 { 2461 if (! is_stage1_5) 2462 /* Stage 2. */ 2463 installaddr = 0x8000; 2464 else 2465 /* Stage 1.5. */ 2466 installaddr = 0x2000; 2467 } 2468 2469 *((unsigned long *) (stage1_buffer + STAGE1_STAGE2_SECTOR)) 2470 = stage2_first_sector; 2471 *((unsigned short *) (stage1_buffer + STAGE1_STAGE2_ADDRESS)) 2472 = installaddr; 2473 *((unsigned short *) (stage1_buffer + STAGE1_STAGE2_SEGMENT)) 2474 = installaddr >> 4; 2475 2476 i = (int) stage2_first_buffer + SECTOR_SIZE - 4; 2477 while (*((unsigned long *) i)) 2478 { 2479 if (i < (int) stage2_first_buffer 2480 || (*((int *) (i - 4)) & 0x80000000) 2481 || *((unsigned short *) i) >= 0xA00 2482 || *((short *) (i + 2)) == 0) 2483 { 2484 errnum = ERR_BAD_VERSION; 2485 goto fail; 2486 } 2487 2488 *((int *) i) = 0; 2489 *((int *) (i - 4)) = 0; 2490 i -= 8; 2491 } 2492 2493 installlist = (int) stage2_first_buffer + SECTOR_SIZE + 4; 2494 installaddr += SECTOR_SIZE; 2495 2496 /* Read the whole of Stage2 except for the first sector. */ 2497 grub_seek (SECTOR_SIZE); 2498 2499 disk_read_hook = disk_read_blocklist_func; 2500 if (! grub_read (dummy, -1)) 2501 goto fail; 2502 2503 disk_read_hook = 0; 2504 2505 /* Find a string for the configuration filename. */ 2506 config_file_location = stage2_second_buffer + STAGE2_VER_STR_OFFS; 2507 while (*(config_file_location++)) 2508 ; 2509 2510 /* Set the "force LBA" flag for Stage2. */ 2511 *((unsigned char *) (stage2_second_buffer + STAGE2_FORCE_LBA)) 2512 = is_force_lba; 2513 2514 if (*ptr == 'p') 2515 { 2516 *((long *) (stage2_second_buffer + STAGE2_INSTALLPART)) 2517 = src_partition; 2518 if (is_stage1_5) 2519 { 2520 /* Reset the device information in FILE if it is a Stage 1.5. */ 2521 unsigned long device = 0xFFFFFFFF; 2522 2523 grub_memmove (config_file_location, (char *) &device, 2524 sizeof (device)); 2525 } 2526 2527 ptr = skip_to (0, ptr); 2528 } 2529 2530 if (*ptr) 2531 { 2532 grub_strcpy (config_filename, ptr); 2533 nul_terminate (config_filename); 2534 2535 if (! is_stage1_5) 2536 /* If it is a Stage 2, just copy PTR to CONFIG_FILE_LOCATION. */ 2537 grub_strcpy (config_file_location, ptr); 2538 else 2539 { 2540 char *real_config; 2541 unsigned long device; 2542 2543 /* Translate the external device syntax to the internal device 2544 syntax. */ 2545 if (! (real_config = set_device (ptr))) 2546 { 2547 /* The Stage 2 PTR does not contain the device name, so 2548 use the root device instead. */ 2549 errnum = ERR_NONE; 2550 current_drive = saved_drive; 2551 current_partition = saved_partition; 2552 real_config = ptr; 2553 } 2554 2555 if (current_drive == src_drive) 2556 { 2557 /* If the drive where the Stage 2 resides is the same as 2558 the one where the Stage 1.5 resides, do not embed the 2559 drive number. */ 2560 current_drive = GRUB_INVALID_DRIVE; 2561 } 2562 2563 device = (current_drive << 24) | current_partition; 2564 grub_memmove (config_file_location, (char *) &device, 2565 sizeof (device)); 2566 grub_strcpy (config_file_location + sizeof (device), 2567 real_config); 2568 } 2569 2570 /* If a Stage 1.5 is used, then we need to modify the Stage2. */ 2571 if (is_stage1_5) 2572 { 2573 char *real_config_filename = skip_to (0, ptr); 2574 2575 is_open = grub_open (config_filename); 2576 if (! is_open) 2577 goto fail; 2578 2579 /* Skip the first sector. */ 2580 grub_seek (SECTOR_SIZE); 2581 2582 disk_read_hook = disk_read_savesect_func; 2583 if (grub_read (stage2_buffer, SECTOR_SIZE) != SECTOR_SIZE) 2584 goto fail; 2585 2586 disk_read_hook = 0; 2587 grub_close (); 2588 is_open = 0; 2589 2590 /* Sanity check. */ 2591 if (*(stage2_buffer + STAGE2_STAGE2_ID) != STAGE2_ID_STAGE2) 2592 { 2593 errnum = ERR_BAD_VERSION; 2594 goto fail; 2595 } 2596 2597 /* Set the "force LBA" flag for Stage2. */ 2598 *(stage2_buffer + STAGE2_FORCE_LBA) = is_force_lba; 2599 2600 /* If REAL_CONFIG_FILENAME is specified, copy it to the Stage2. */ 2601 if (*real_config_filename) 2602 { 2603 /* Specified */ 2604 char *location; 2605 2606 /* Find a string for the configuration filename. */ 2607 location = stage2_buffer + STAGE2_VER_STR_OFFS; 2608 while (*(location++)) 2609 ; 2610 2611 /* Copy the name. */ 2612 grub_strcpy (location, real_config_filename); 2613 } 2614 2615 /* Write it to the disk. */ 2616 buf_track = BUF_CACHE_INVALID; 2617 2618 #ifdef GRUB_UTIL 2619 /* In the grub shell, access the Stage 2 via the OS filesystem 2620 service, if possible. */ 2621 if (stage2_os_file) 2622 { 2623 FILE *fp; 2624 2625 fp = fopen (stage2_os_file, "r+"); 2626 if (! fp) 2627 { 2628 errnum = ERR_FILE_NOT_FOUND; 2629 goto fail; 2630 } 2631 2632 if (fseek (fp, SECTOR_SIZE, SEEK_SET) != 0) 2633 { 2634 fclose (fp); 2635 errnum = ERR_BAD_VERSION; 2636 goto fail; 2637 } 2638 2639 if (fwrite (stage2_buffer, 1, SECTOR_SIZE, fp) 2640 != SECTOR_SIZE) 2641 { 2642 fclose (fp); 2643 errnum = ERR_WRITE; 2644 goto fail; 2645 } 2646 2647 fclose (fp); 2648 } 2649 else 2650 #endif /* GRUB_UTIL */ 2651 { 2652 if (! devwrite (saved_sector - part_start, 1, stage2_buffer)) 2653 goto fail; 2654 } 2655 } 2656 } 2657 2658 /* Clear the cache. */ 2659 buf_track = BUF_CACHE_INVALID; 2660 2661 /* Write the modified sectors of Stage2 to the disk. */ 2662 #ifdef GRUB_UTIL 2663 if (! is_stage1_5 && stage2_os_file) 2664 { 2665 FILE *fp; 2666 2667 fp = fopen (stage2_os_file, "r+"); 2668 if (! fp) 2669 { 2670 errnum = ERR_FILE_NOT_FOUND; 2671 goto fail; 2672 } 2673 2674 if (fwrite (stage2_first_buffer, 1, SECTOR_SIZE, fp) != SECTOR_SIZE) 2675 { 2676 fclose (fp); 2677 errnum = ERR_WRITE; 2678 goto fail; 2679 } 2680 2681 if (fwrite (stage2_second_buffer, 1, SECTOR_SIZE, fp) != SECTOR_SIZE) 2682 { 2683 fclose (fp); 2684 errnum = ERR_WRITE; 2685 goto fail; 2686 } 2687 2688 fclose (fp); 2689 } 2690 else 2691 #endif /* GRUB_UTIL */ 2692 { 2693 /* The first. */ 2694 current_drive = src_drive; 2695 current_partition = src_partition; 2696 2697 if (! open_partition ()) 2698 goto fail; 2699 2700 if (! devwrite (stage2_first_sector - src_part_start, 1, 2701 stage2_first_buffer)) 2702 goto fail; 2703 2704 if (! devwrite (stage2_second_sector - src_part_start, 1, 2705 stage2_second_buffer)) 2706 goto fail; 2707 } 2708 2709 /* Write the modified sector of Stage 1 to the disk. */ 2710 current_drive = dest_drive; 2711 current_partition = dest_partition; 2712 if (! open_partition ()) 2713 goto fail; 2714 2715 devwrite (0, 1, stage1_buffer); 2716 2717 fail: 2718 if (is_open) 2719 grub_close (); 2720 2721 disk_read_hook = 0; 2722 2723 #ifndef NO_DECOMPRESSION 2724 no_decompression = 0; 2725 #endif 2726 2727 return errnum; 2728 } 2729 2730 static struct builtin builtin_install = 2731 { 2732 "install", 2733 install_func, 2734 BUILTIN_CMDLINE, 2735 "install [--stage2=STAGE2_FILE] [--force-lba] STAGE1 [d] DEVICE STAGE2 [ADDR] [p] [CONFIG_FILE] [REAL_CONFIG_FILE]", 2736 "Install STAGE1 on DEVICE, and install a blocklist for loading STAGE2" 2737 " as a Stage 2. If the option `d' is present, the Stage 1 will always" 2738 " look for the disk where STAGE2 was installed, rather than using" 2739 " the booting drive. The Stage 2 will be loaded at address ADDR, which" 2740 " will be determined automatically if you don't specify it. If" 2741 " the option `p' or CONFIG_FILE is present, then the first block" 2742 " of Stage 2 is patched with new values of the partition and name" 2743 " of the configuration file used by the true Stage 2 (for a Stage 1.5," 2744 " this is the name of the true Stage 2) at boot time. If STAGE2 is a Stage" 2745 " 1.5 and REAL_CONFIG_FILE is present, then the Stage 2 CONFIG_FILE is" 2746 " patched with the configuration filename REAL_CONFIG_FILE." 2747 " If the option `--force-lba' is specified, disable some sanity checks" 2748 " for LBA mode. If the option `--stage2' is specified, rewrite the Stage" 2749 " 2 via your OS's filesystem instead of the raw device." 2750 }; 2751 2752 2753 /* ioprobe */ 2754 static int 2755 ioprobe_func (char *arg, int flags) 2756 { 2757 #ifdef GRUB_UTIL 2758 2759 errnum = ERR_UNRECOGNIZED; 2760 return 1; 2761 2762 #else /* ! GRUB_UTIL */ 2763 2764 unsigned short *port; 2765 2766 /* Get the drive number. */ 2767 set_device (arg); 2768 if (errnum) 2769 return 1; 2770 2771 /* Clean out IO_MAP. */ 2772 grub_memset ((char *) io_map, 0, IO_MAP_SIZE * sizeof (unsigned short)); 2773 2774 /* Track the int13 handler. */ 2775 track_int13 (current_drive); 2776 2777 /* Print out the result. */ 2778 for (port = io_map; *port != 0; port++) 2779 grub_printf (" 0x%x", (unsigned int) *port); 2780 2781 return 0; 2782 2783 #endif /* ! GRUB_UTIL */ 2784 } 2785 2786 static struct builtin builtin_ioprobe = 2787 { 2788 "ioprobe", 2789 ioprobe_func, 2790 BUILTIN_CMDLINE, 2791 "ioprobe DRIVE", 2792 "Probe I/O ports used for the drive DRIVE." 2793 }; 2794 2795 2796 /* kernel */ 2797 static int 2798 kernel_func (char *arg, int flags) 2799 { 2800 int len; 2801 kernel_t suggested_type = KERNEL_TYPE_NONE; 2802 unsigned long load_flags = 0; 2803 2804 #ifndef AUTO_LINUX_MEM_OPT 2805 load_flags |= KERNEL_LOAD_NO_MEM_OPTION; 2806 #endif 2807 2808 /* Deal with GNU-style long options. */ 2809 while (1) 2810 { 2811 /* If the option `--type=TYPE' is specified, convert the string to 2812 a kernel type. */ 2813 if (grub_memcmp (arg, "--type=", 7) == 0) 2814 { 2815 arg += 7; 2816 2817 if (grub_memcmp (arg, "netbsd", 6) == 0) 2818 suggested_type = KERNEL_TYPE_NETBSD; 2819 else if (grub_memcmp (arg, "freebsd", 7) == 0) 2820 suggested_type = KERNEL_TYPE_FREEBSD; 2821 else if (grub_memcmp (arg, "openbsd", 7) == 0) 2822 /* XXX: For now, OpenBSD is identical to NetBSD, from GRUB's 2823 point of view. */ 2824 suggested_type = KERNEL_TYPE_NETBSD; 2825 else if (grub_memcmp (arg, "linux", 5) == 0) 2826 suggested_type = KERNEL_TYPE_LINUX; 2827 else if (grub_memcmp (arg, "biglinux", 8) == 0) 2828 suggested_type = KERNEL_TYPE_BIG_LINUX; 2829 else if (grub_memcmp (arg, "multiboot", 9) == 0) 2830 suggested_type = KERNEL_TYPE_MULTIBOOT; 2831 else 2832 { 2833 errnum = ERR_BAD_ARGUMENT; 2834 return 1; 2835 } 2836 } 2837 /* If the `--no-mem-option' is specified, don't pass a Linux's mem 2838 option automatically. If the kernel is another type, this flag 2839 has no effect. */ 2840 else if (grub_memcmp (arg, "--no-mem-option", 15) == 0) 2841 load_flags |= KERNEL_LOAD_NO_MEM_OPTION; 2842 else 2843 break; 2844 2845 /* Try the next. */ 2846 arg = skip_to (0, arg); 2847 } 2848 2849 len = grub_strlen (arg); 2850 2851 /* Reset MB_CMDLINE. */ 2852 mb_cmdline = (char *) MB_CMDLINE_BUF; 2853 if (len + 1 > MB_CMDLINE_BUFLEN) 2854 { 2855 errnum = ERR_WONT_FIT; 2856 return 1; 2857 } 2858 2859 /* Copy the command-line to MB_CMDLINE. */ 2860 grub_memmove (mb_cmdline, arg, len + 1); 2861 kernel_type = load_image (arg, mb_cmdline, suggested_type, load_flags); 2862 if (kernel_type == KERNEL_TYPE_NONE) 2863 return 1; 2864 2865 mb_cmdline += grub_strlen(mb_cmdline) + 1; 2866 return 0; 2867 } 2868 2869 static struct builtin builtin_kernel = 2870 { 2871 "kernel", 2872 kernel_func, 2873 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 2874 "kernel [--no-mem-option] [--type=TYPE] FILE [ARG ...]", 2875 "Attempt to load the primary boot image from FILE. The rest of the" 2876 " line is passed verbatim as the \"kernel command line\". Any modules" 2877 " must be reloaded after using this command. The option --type is used" 2878 " to suggest what type of kernel to be loaded. TYPE must be either of" 2879 " \"netbsd\", \"freebsd\", \"openbsd\", \"linux\", \"biglinux\" and" 2880 " \"multiboot\". The option --no-mem-option tells GRUB not to pass a" 2881 " Linux's mem option automatically." 2882 }; 2883 2884 int 2885 min_mem64_func(char *arg, int flags) 2886 { 2887 if (!safe_parse_maxint(&arg, &min_mem64)) 2888 return (1); 2889 } 2890 2891 static struct builtin builtin_min_mem64 = 2892 { 2893 "min_mem64", 2894 min_mem64_func, 2895 BUILTIN_CMDLINE | BUILTIN_MENU | BUILTIN_SCRIPT | BUILTIN_HELP_LIST, 2896 "min_mem64 <memory in MB>", 2897 "Sets minimum memory (in MB) required for $ISADIR to expand to amd64, " 2898 "even on 64-bit capable hardware." 2899 }; 2900 2901 static int 2902 kernel_dollar_func (char *arg, int flags) 2903 { 2904 int err; 2905 char newarg[MAX_CMDLINE]; 2906 2907 /* 2908 * We're going to expand the arguments twice. The first expansion, which 2909 * occurs without the benefit of knowing the ZFS object ID of the filesystem 2910 * we're booting from (if we're booting from ZFS, of course), must be 2911 * sufficient to find and read the kernel. The second expansion will 2912 * then overwrite the command line actually set in the multiboot header with 2913 * the newly-expanded one. Since $ZFS-BOOTFS expands differently after 2914 * zfs_open() has been called (kernel_func() -> load_image() -> grub_open() -> 2915 * zfs_open()), we need to do the second expansion so that the kernel is 2916 * given the right object ID argument. Note that the pointer to the 2917 * command line set in the multiboot header is always MB_CMDLINE_BUF. 2918 */ 2919 grub_printf("loading '%s' ...\n", arg); 2920 if ((err = expand_string(arg, newarg, MAX_CMDLINE)) != 0) { 2921 errnum = err; 2922 return (1); 2923 } 2924 2925 if ((err = kernel_func(newarg, flags)) != 0) 2926 return (err); 2927 2928 mb_cmdline = (char *)MB_CMDLINE_BUF; 2929 if ((err = expand_string(arg, mb_cmdline, MAX_CMDLINE)) != 0) { 2930 errnum = err; 2931 return (1); 2932 } 2933 2934 grub_printf("loading '%s' ...\n", mb_cmdline); 2935 mb_cmdline += grub_strlen(mb_cmdline) + 1; 2936 return (0); 2937 } 2938 2939 static struct builtin builtin_kernel_dollar = 2940 { 2941 "kernel$", 2942 kernel_dollar_func, 2943 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 2944 "kernel$ [--no-mem-option] [--type=TYPE] FILE [ARG ...]", 2945 " Just like kernel, but with variable expansion, including the legacy" 2946 " (and nonconforming) variables $ISADIR and $ZFS-BOOTFS." 2947 }; 2948 2949 2950 /* lock */ 2951 static int 2952 lock_func (char *arg, int flags) 2953 { 2954 if (! auth && password) 2955 { 2956 errnum = ERR_PRIVILEGED; 2957 return 1; 2958 } 2959 2960 return 0; 2961 } 2962 2963 static struct builtin builtin_lock = 2964 { 2965 "lock", 2966 lock_func, 2967 BUILTIN_CMDLINE, 2968 "lock", 2969 "Break a command execution unless the user is authenticated." 2970 }; 2971 2972 2973 /* makeactive */ 2974 static int 2975 makeactive_func (char *arg, int flags) 2976 { 2977 if (! make_saved_active ()) 2978 return 1; 2979 2980 return 0; 2981 } 2982 2983 static struct builtin builtin_makeactive = 2984 { 2985 "makeactive", 2986 makeactive_func, 2987 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 2988 "makeactive", 2989 "Set the active partition on the root disk to GRUB's root device." 2990 " This command is limited to _primary_ PC partitions on a hard disk." 2991 }; 2992 2993 2994 /* map */ 2995 /* Map FROM_DRIVE to TO_DRIVE. */ 2996 static int 2997 map_func (char *arg, int flags) 2998 { 2999 char *to_drive; 3000 char *from_drive; 3001 unsigned long to, from; 3002 int i; 3003 3004 to_drive = arg; 3005 from_drive = skip_to (0, arg); 3006 3007 /* Get the drive number for TO_DRIVE. */ 3008 set_device (to_drive); 3009 if (errnum) 3010 return 1; 3011 to = current_drive; 3012 3013 /* Get the drive number for FROM_DRIVE. */ 3014 set_device (from_drive); 3015 if (errnum) 3016 return 1; 3017 from = current_drive; 3018 3019 /* Search for an empty slot in BIOS_DRIVE_MAP. */ 3020 for (i = 0; i < DRIVE_MAP_SIZE; i++) 3021 { 3022 /* Perhaps the user wants to override the map. */ 3023 if ((bios_drive_map[i] & 0xff) == from) 3024 break; 3025 3026 if (! bios_drive_map[i]) 3027 break; 3028 } 3029 3030 if (i == DRIVE_MAP_SIZE) 3031 { 3032 errnum = ERR_WONT_FIT; 3033 return 1; 3034 } 3035 3036 if (to == from) 3037 /* If TO is equal to FROM, delete the entry. */ 3038 grub_memmove ((char *) &bios_drive_map[i], (char *) &bios_drive_map[i + 1], 3039 sizeof (unsigned short) * (DRIVE_MAP_SIZE - i)); 3040 else 3041 bios_drive_map[i] = from | (to << 8); 3042 3043 return 0; 3044 } 3045 3046 static struct builtin builtin_map = 3047 { 3048 "map", 3049 map_func, 3050 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 3051 "map TO_DRIVE FROM_DRIVE", 3052 "Map the drive FROM_DRIVE to the drive TO_DRIVE. This is necessary" 3053 " when you chain-load some operating systems, such as DOS, if such an" 3054 " OS resides at a non-first drive." 3055 }; 3056 3057 3058 #ifdef USE_MD5_PASSWORDS 3059 /* md5crypt */ 3060 static int 3061 md5crypt_func (char *arg, int flags) 3062 { 3063 char crypted[36]; 3064 char key[32]; 3065 unsigned int seed; 3066 int i; 3067 const char *const seedchars = 3068 "./0123456789ABCDEFGHIJKLMNOPQRST" 3069 "UVWXYZabcdefghijklmnopqrstuvwxyz"; 3070 3071 /* First create a salt. */ 3072 3073 /* The magical prefix. */ 3074 grub_memset (crypted, 0, sizeof (crypted)); 3075 grub_memmove (crypted, "$1$", 3); 3076 3077 /* Create the length of a salt. */ 3078 seed = currticks (); 3079 3080 /* Generate a salt. */ 3081 for (i = 0; i < 8 && seed; i++) 3082 { 3083 /* FIXME: This should be more random. */ 3084 crypted[3 + i] = seedchars[seed & 0x3f]; 3085 seed >>= 6; 3086 } 3087 3088 /* A salt must be terminated with `$', if it is less than 8 chars. */ 3089 crypted[3 + i] = '$'; 3090 3091 #ifdef DEBUG_MD5CRYPT 3092 grub_printf ("salt = %s\n", crypted); 3093 #endif 3094 3095 /* Get a password. */ 3096 grub_memset (key, 0, sizeof (key)); 3097 get_cmdline ("Password: ", key, sizeof (key) - 1, '*', 0); 3098 3099 /* Crypt the key. */ 3100 make_md5_password (key, crypted); 3101 3102 grub_printf ("Encrypted: %s\n", crypted); 3103 return 0; 3104 } 3105 3106 static struct builtin builtin_md5crypt = 3107 { 3108 "md5crypt", 3109 md5crypt_func, 3110 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 3111 "md5crypt", 3112 "Generate a password in MD5 format." 3113 }; 3114 #endif /* USE_MD5_PASSWORDS */ 3115 3116 3117 /* module */ 3118 static int 3119 module_func (char *arg, int flags) 3120 { 3121 int len = grub_strlen (arg); 3122 3123 switch (kernel_type) 3124 { 3125 case KERNEL_TYPE_MULTIBOOT: 3126 if (mb_cmdline + len + 1 > (char *) MB_CMDLINE_BUF + MB_CMDLINE_BUFLEN) 3127 { 3128 errnum = ERR_WONT_FIT; 3129 return 1; 3130 } 3131 grub_memmove (mb_cmdline, arg, len + 1); 3132 if (! load_module (arg, mb_cmdline)) 3133 return 1; 3134 3135 mb_cmdline += grub_strlen(mb_cmdline) + 1; 3136 break; 3137 3138 case KERNEL_TYPE_LINUX: 3139 case KERNEL_TYPE_BIG_LINUX: 3140 if (! load_initrd (arg)) 3141 return 1; 3142 break; 3143 3144 default: 3145 errnum = ERR_NEED_MB_KERNEL; 3146 return 1; 3147 } 3148 3149 return 0; 3150 } 3151 3152 static struct builtin builtin_module = 3153 { 3154 "module", 3155 module_func, 3156 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 3157 "module FILE [ARG ...]", 3158 "Load a boot module FILE for a Multiboot format boot image (no" 3159 " interpretation of the file contents is made, so users of this" 3160 " command must know what the kernel in question expects). The" 3161 " rest of the line is passed as the \"module command line\", like" 3162 " the `kernel' command." 3163 }; 3164 3165 /* module$ */ 3166 static int 3167 module_dollar_func (char *arg, int flags) 3168 { 3169 char newarg[MAX_CMDLINE]; 3170 char *cmdline_sav = mb_cmdline; 3171 int err; 3172 3173 grub_printf("loading '%s' ...\n", arg); 3174 if ((err = expand_string(arg, newarg, MAX_CMDLINE)) != 0) { 3175 errnum = err; 3176 return (1); 3177 } 3178 3179 if ((err = module_func(newarg, flags)) != 0) 3180 return (err); 3181 3182 if ((err = expand_string(arg, cmdline_sav, MAX_CMDLINE)) != 0) { 3183 errnum = err; 3184 return (1); 3185 } 3186 3187 grub_printf("loading '%s' ...\n", cmdline_sav); 3188 mb_cmdline += grub_strlen(cmdline_sav) + 1; 3189 return (0); 3190 } 3191 3192 static struct builtin builtin_module_dollar = 3193 { 3194 "module$", 3195 module_dollar_func, 3196 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 3197 "module FILE [ARG ...]", 3198 " Just like module, but with $ISADIR expansion." 3199 }; 3200 3201 3202 /* modulenounzip */ 3203 static int 3204 modulenounzip_func (char *arg, int flags) 3205 { 3206 int ret; 3207 3208 #ifndef NO_DECOMPRESSION 3209 no_decompression = 1; 3210 #endif 3211 3212 ret = module_func (arg, flags); 3213 3214 #ifndef NO_DECOMPRESSION 3215 no_decompression = 0; 3216 #endif 3217 3218 return ret; 3219 } 3220 3221 static struct builtin builtin_modulenounzip = 3222 { 3223 "modulenounzip", 3224 modulenounzip_func, 3225 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 3226 "modulenounzip FILE [ARG ...]", 3227 "The same as `module', except that automatic decompression is" 3228 " disabled." 3229 }; 3230 3231 3232 /* pager [on|off] */ 3233 static int 3234 pager_func (char *arg, int flags) 3235 { 3236 /* If ARG is empty, toggle the flag. */ 3237 if (! *arg) 3238 use_pager = ! use_pager; 3239 else if (grub_memcmp (arg, "on", 2) == 0) 3240 use_pager = 1; 3241 else if (grub_memcmp (arg, "off", 3) == 0) 3242 use_pager = 0; 3243 else 3244 { 3245 errnum = ERR_BAD_ARGUMENT; 3246 return 1; 3247 } 3248 3249 grub_printf (" Internal pager is now %s\n", use_pager ? "on" : "off"); 3250 return 0; 3251 } 3252 3253 static struct builtin builtin_pager = 3254 { 3255 "pager", 3256 pager_func, 3257 BUILTIN_CMDLINE | BUILTIN_MENU | BUILTIN_HELP_LIST, 3258 "pager [FLAG]", 3259 "Toggle pager mode with no argument. If FLAG is given and its value" 3260 " is `on', turn on the mode. If FLAG is `off', turn off the mode." 3261 }; 3262 3263 3264 /* partnew PART TYPE START LEN */ 3265 static int 3266 partnew_func (char *arg, int flags) 3267 { 3268 int new_type, new_start, new_len; 3269 int start_cl, start_ch, start_dh; 3270 int end_cl, end_ch, end_dh; 3271 int entry; 3272 char mbr[512]; 3273 3274 /* Convert a LBA address to a CHS address in the INT 13 format. */ 3275 auto void lba_to_chs (int lba, int *cl, int *ch, int *dh); 3276 void lba_to_chs (int lba, int *cl, int *ch, int *dh) 3277 { 3278 int cylinder, head, sector; 3279 3280 sector = lba % buf_geom.sectors + 1; 3281 head = (lba / buf_geom.sectors) % buf_geom.heads; 3282 cylinder = lba / (buf_geom.sectors * buf_geom.heads); 3283 3284 if (cylinder >= buf_geom.cylinders) 3285 cylinder = buf_geom.cylinders - 1; 3286 3287 *cl = sector | ((cylinder & 0x300) >> 2); 3288 *ch = cylinder & 0xFF; 3289 *dh = head; 3290 } 3291 3292 /* Get the drive and the partition. */ 3293 if (! set_device (arg)) 3294 return 1; 3295 3296 /* The drive must be a hard disk. */ 3297 if (! (current_drive & 0x80)) 3298 { 3299 errnum = ERR_BAD_ARGUMENT; 3300 return 1; 3301 } 3302 3303 /* The partition must a primary partition. */ 3304 if ((current_partition >> 16) > 3 3305 || (current_partition & 0xFFFF) != 0xFFFF) 3306 { 3307 errnum = ERR_BAD_ARGUMENT; 3308 return 1; 3309 } 3310 3311 entry = current_partition >> 16; 3312 3313 /* Get the new partition type. */ 3314 arg = skip_to (0, arg); 3315 if (! safe_parse_maxint (&arg, &new_type)) 3316 return 1; 3317 3318 /* The partition type is unsigned char. */ 3319 if (new_type > 0xFF) 3320 { 3321 errnum = ERR_BAD_ARGUMENT; 3322 return 1; 3323 } 3324 3325 /* Get the new partition start. */ 3326 arg = skip_to (0, arg); 3327 if (! safe_parse_maxint (&arg, &new_start)) 3328 return 1; 3329 3330 /* Get the new partition length. */ 3331 arg = skip_to (0, arg); 3332 if (! safe_parse_maxint (&arg, &new_len)) 3333 return 1; 3334 3335 /* Read the MBR. */ 3336 if (! rawread (current_drive, 0, 0, SECTOR_SIZE, mbr)) 3337 return 1; 3338 3339 /* Store the partition information in the MBR. */ 3340 lba_to_chs (new_start, &start_cl, &start_ch, &start_dh); 3341 lba_to_chs (new_start + new_len - 1, &end_cl, &end_ch, &end_dh); 3342 3343 PC_SLICE_FLAG (mbr, entry) = 0; 3344 PC_SLICE_HEAD (mbr, entry) = start_dh; 3345 PC_SLICE_SEC (mbr, entry) = start_cl; 3346 PC_SLICE_CYL (mbr, entry) = start_ch; 3347 PC_SLICE_TYPE (mbr, entry) = new_type; 3348 PC_SLICE_EHEAD (mbr, entry) = end_dh; 3349 PC_SLICE_ESEC (mbr, entry) = end_cl; 3350 PC_SLICE_ECYL (mbr, entry) = end_ch; 3351 PC_SLICE_START (mbr, entry) = new_start; 3352 PC_SLICE_LENGTH (mbr, entry) = new_len; 3353 3354 /* Make sure that the MBR has a valid signature. */ 3355 PC_MBR_SIG (mbr) = PC_MBR_SIGNATURE; 3356 3357 /* Write back the MBR to the disk. */ 3358 buf_track = BUF_CACHE_INVALID; 3359 if (! rawwrite (current_drive, 0, mbr)) 3360 return 1; 3361 3362 return 0; 3363 } 3364 3365 static struct builtin builtin_partnew = 3366 { 3367 "partnew", 3368 partnew_func, 3369 BUILTIN_CMDLINE | BUILTIN_MENU | BUILTIN_HELP_LIST, 3370 "partnew PART TYPE START LEN", 3371 "Create a primary partition at the starting address START with the" 3372 " length LEN, with the type TYPE. START and LEN are in sector units." 3373 }; 3374 3375 3376 /* parttype PART TYPE */ 3377 static int 3378 parttype_func (char *arg, int flags) 3379 { 3380 int new_type; 3381 unsigned long part = 0xFFFFFF; 3382 unsigned long start, len, offset, ext_offset, gpt_offset; 3383 int entry, type, gpt_count, gpt_size; 3384 char mbr[512]; 3385 3386 /* Get the drive and the partition. */ 3387 if (! set_device (arg)) 3388 return 1; 3389 3390 /* The drive must be a hard disk. */ 3391 if (! (current_drive & 0x80)) 3392 { 3393 errnum = ERR_BAD_ARGUMENT; 3394 return 1; 3395 } 3396 3397 /* The partition must be a PC slice. */ 3398 if ((current_partition >> 16) == 0xFF 3399 || (current_partition & 0xFFFF) != 0xFFFF) 3400 { 3401 errnum = ERR_BAD_ARGUMENT; 3402 return 1; 3403 } 3404 3405 /* Get the new partition type. */ 3406 arg = skip_to (0, arg); 3407 if (! safe_parse_maxint (&arg, &new_type)) 3408 return 1; 3409 3410 /* The partition type is unsigned char. */ 3411 if (new_type > 0xFF) 3412 { 3413 errnum = ERR_BAD_ARGUMENT; 3414 return 1; 3415 } 3416 3417 /* Look for the partition. */ 3418 while (next_partition (current_drive, 0xFFFFFF, &part, &type, 3419 &start, &len, &offset, &entry, 3420 &ext_offset, &gpt_offset, &gpt_count, &gpt_size, mbr)) 3421 { 3422 /* The partition may not be a GPT partition. */ 3423 if (gpt_offset != 0) 3424 { 3425 errnum = ERR_BAD_ARGUMENT; 3426 return 1; 3427 } 3428 3429 if (part == current_partition) 3430 { 3431 /* Found. */ 3432 3433 /* Set the type to NEW_TYPE. */ 3434 PC_SLICE_TYPE (mbr, entry) = new_type; 3435 3436 /* Write back the MBR to the disk. */ 3437 buf_track = BUF_CACHE_INVALID; 3438 if (! rawwrite (current_drive, offset, mbr)) 3439 return 1; 3440 3441 /* Succeed. */ 3442 return 0; 3443 } 3444 } 3445 3446 /* The partition was not found. ERRNUM was set by next_partition. */ 3447 return 1; 3448 } 3449 3450 static struct builtin builtin_parttype = 3451 { 3452 "parttype", 3453 parttype_func, 3454 BUILTIN_CMDLINE | BUILTIN_MENU | BUILTIN_HELP_LIST, 3455 "parttype PART TYPE", 3456 "Change the type of the partition PART to TYPE." 3457 }; 3458 3459 3460 /* password */ 3461 static int 3462 password_func (char *arg, int flags) 3463 { 3464 int len; 3465 password_t type = PASSWORD_PLAIN; 3466 3467 #ifdef USE_MD5_PASSWORDS 3468 if (grub_memcmp (arg, "--md5", 5) == 0) 3469 { 3470 type = PASSWORD_MD5; 3471 arg = skip_to (0, arg); 3472 } 3473 #endif 3474 if (grub_memcmp (arg, "--", 2) == 0) 3475 { 3476 type = PASSWORD_UNSUPPORTED; 3477 arg = skip_to (0, arg); 3478 } 3479 3480 if ((flags & (BUILTIN_CMDLINE | BUILTIN_SCRIPT)) != 0) 3481 { 3482 /* Do password check! */ 3483 char entered[32]; 3484 3485 /* Wipe out any previously entered password */ 3486 entered[0] = 0; 3487 get_cmdline ("Password: ", entered, 31, '*', 0); 3488 3489 nul_terminate (arg); 3490 if (check_password (entered, arg, type) != 0) 3491 { 3492 errnum = ERR_PRIVILEGED; 3493 return 1; 3494 } 3495 } 3496 else 3497 { 3498 len = grub_strlen (arg); 3499 3500 /* PASSWORD NUL NUL ... */ 3501 if (len + 2 > PASSWORD_BUFLEN) 3502 { 3503 errnum = ERR_WONT_FIT; 3504 return 1; 3505 } 3506 3507 /* Copy the password and clear the rest of the buffer. */ 3508 password = (char *) PASSWORD_BUF; 3509 grub_memmove (password, arg, len); 3510 grub_memset (password + len, 0, PASSWORD_BUFLEN - len); 3511 password_type = type; 3512 } 3513 return 0; 3514 } 3515 3516 static struct builtin builtin_password = 3517 { 3518 "password", 3519 password_func, 3520 BUILTIN_MENU | BUILTIN_CMDLINE | BUILTIN_NO_ECHO, 3521 "password [--md5] PASSWD [FILE]", 3522 "If used in the first section of a menu file, disable all" 3523 " interactive editing control (menu entry editor and" 3524 " command line). If the password PASSWD is entered, it loads the" 3525 " FILE as a new config file and restarts the GRUB Stage 2. If you" 3526 " omit the argument FILE, then GRUB just unlocks privileged" 3527 " instructions. You can also use it in the script section, in" 3528 " which case it will ask for the password, before continueing." 3529 " The option --md5 tells GRUB that PASSWD is encrypted with" 3530 " md5crypt." 3531 }; 3532 3533 3534 /* pause */ 3535 static int 3536 pause_func (char *arg, int flags) 3537 { 3538 printf("%s\n", arg); 3539 3540 /* If ESC is returned, then abort this entry. */ 3541 if (ASCII_CHAR (getkey ()) == 27) 3542 return 1; 3543 3544 return 0; 3545 } 3546 3547 static struct builtin builtin_pause = 3548 { 3549 "pause", 3550 pause_func, 3551 BUILTIN_CMDLINE | BUILTIN_NO_ECHO, 3552 "pause [MESSAGE ...]", 3553 "Print MESSAGE, then wait until a key is pressed." 3554 }; 3555 3556 3557 #ifdef GRUB_UTIL 3558 /* quit */ 3559 static int 3560 quit_func (char *arg, int flags) 3561 { 3562 stop (); 3563 3564 /* Never reach here. */ 3565 return 0; 3566 } 3567 3568 static struct builtin builtin_quit = 3569 { 3570 "quit", 3571 quit_func, 3572 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 3573 "quit", 3574 "Exit from the GRUB shell." 3575 }; 3576 #endif /* GRUB_UTIL */ 3577 3578 3579 #ifdef SUPPORT_NETBOOT 3580 /* rarp */ 3581 static int 3582 rarp_func (char *arg, int flags) 3583 { 3584 if (! rarp ()) 3585 { 3586 if (errnum == ERR_NONE) 3587 errnum = ERR_DEV_VALUES; 3588 3589 return 1; 3590 } 3591 3592 /* Notify the configuration. */ 3593 print_network_configuration (); 3594 return 0; 3595 } 3596 3597 static struct builtin builtin_rarp = 3598 { 3599 "rarp", 3600 rarp_func, 3601 BUILTIN_CMDLINE | BUILTIN_MENU | BUILTIN_HELP_LIST, 3602 "rarp", 3603 "Initialize a network device via RARP." 3604 }; 3605 #endif /* SUPPORT_NETBOOT */ 3606 3607 3608 static int 3609 read_func (char *arg, int flags) 3610 { 3611 int addr; 3612 3613 if (! safe_parse_maxint (&arg, &addr)) 3614 return 1; 3615 3616 grub_printf ("Address 0x%x: Value 0x%x\n", 3617 addr, *((unsigned *) RAW_ADDR (addr))); 3618 return 0; 3619 } 3620 3621 static struct builtin builtin_read = 3622 { 3623 "read", 3624 read_func, 3625 BUILTIN_CMDLINE, 3626 "read ADDR", 3627 "Read a 32-bit value from memory at address ADDR and" 3628 " display it in hex format." 3629 }; 3630 3631 3632 /* reboot */ 3633 static int 3634 reboot_func (char *arg, int flags) 3635 { 3636 grub_reboot (); 3637 3638 /* Never reach here. */ 3639 return 1; 3640 } 3641 3642 static struct builtin builtin_reboot = 3643 { 3644 "reboot", 3645 reboot_func, 3646 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 3647 "reboot", 3648 "Reboot your system." 3649 }; 3650 3651 3652 /* Print the root device information. */ 3653 static void 3654 print_root_device (void) 3655 { 3656 if (saved_drive == NETWORK_DRIVE) 3657 { 3658 /* Network drive. */ 3659 grub_printf (" (nd):"); 3660 } 3661 else if (saved_drive & 0x80) 3662 { 3663 /* Hard disk drive. */ 3664 grub_printf (" (hd%d", saved_drive - 0x80); 3665 3666 if ((saved_partition & 0xFF0000) != 0xFF0000) 3667 grub_printf (",%d", saved_partition >> 16); 3668 3669 if ((saved_partition & 0x00FF00) != 0x00FF00) 3670 grub_printf (",%c", ((saved_partition >> 8) & 0xFF) + 'a'); 3671 3672 grub_printf ("):"); 3673 } 3674 else 3675 { 3676 /* Floppy disk drive. */ 3677 grub_printf (" (fd%d):", saved_drive); 3678 } 3679 3680 /* Print the filesystem information. */ 3681 current_partition = saved_partition; 3682 current_drive = saved_drive; 3683 print_fsys_type (); 3684 } 3685 3686 static int 3687 real_root_func (char *arg, int attempt_mount) 3688 { 3689 int hdbias = 0; 3690 char *biasptr; 3691 char *next; 3692 3693 /* If ARG is empty, just print the current root device. */ 3694 if (! *arg) 3695 { 3696 print_root_device (); 3697 return 0; 3698 } 3699 3700 /* Call set_device to get the drive and the partition in ARG. */ 3701 next = set_device (arg); 3702 if (! next) 3703 return 1; 3704 3705 /* Ignore ERR_FSYS_MOUNT. */ 3706 if (attempt_mount) 3707 { 3708 if (! open_device () && errnum != ERR_FSYS_MOUNT) 3709 return 1; 3710 } 3711 else 3712 { 3713 /* This is necessary, because the location of a partition table 3714 must be set appropriately. */ 3715 if (open_partition ()) 3716 { 3717 set_bootdev (0); 3718 if (errnum) 3719 return 1; 3720 } 3721 } 3722 3723 /* Clear ERRNUM. */ 3724 errnum = 0; 3725 saved_partition = current_partition; 3726 saved_drive = current_drive; 3727 3728 if (attempt_mount) 3729 { 3730 /* BSD and chainloading evil hacks !! */ 3731 biasptr = skip_to (0, next); 3732 safe_parse_maxint (&biasptr, &hdbias); 3733 errnum = 0; 3734 bootdev = set_bootdev (hdbias); 3735 if (errnum) 3736 return 1; 3737 3738 /* Print the type of the filesystem. */ 3739 print_fsys_type (); 3740 } 3741 3742 return 0; 3743 } 3744 3745 static int 3746 root_func (char *arg, int flags) 3747 { 3748 is_zfs_mount = 0; 3749 return real_root_func (arg, 1); 3750 } 3751 3752 static struct builtin builtin_root = 3753 { 3754 "root", 3755 root_func, 3756 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 3757 "root [DEVICE [HDBIAS]]", 3758 "Set the current \"root device\" to the device DEVICE, then" 3759 " attempt to mount it to get the partition size (for passing the" 3760 " partition descriptor in `ES:ESI', used by some chain-loaded" 3761 " bootloaders), the BSD drive-type (for booting BSD kernels using" 3762 " their native boot format), and correctly determine " 3763 " the PC partition where a BSD sub-partition is located. The" 3764 " optional HDBIAS parameter is a number to tell a BSD kernel" 3765 " how many BIOS drive numbers are on controllers before the current" 3766 " one. For example, if there is an IDE disk and a SCSI disk, and your" 3767 " FreeBSD root partition is on the SCSI disk, then use a `1' for HDBIAS." 3768 }; 3769 3770 3771 /* findroot */ 3772 int 3773 findroot_func (char *arg, int flags) 3774 { 3775 int ret; 3776 char root[32]; 3777 3778 if (grub_strlen(arg) >= BOOTSIGN_ARGLEN) { 3779 errnum = ERR_BAD_ARGUMENT; 3780 return 1; 3781 } 3782 3783 if (arg[0] == '\0') { 3784 errnum = ERR_BAD_ARGUMENT; 3785 return 1; 3786 } 3787 3788 find_best_root = 1; 3789 best_drive = 0; 3790 best_part = 0; 3791 ret = find_common(arg, root, 1, flags); 3792 if (ret != 0) 3793 return (ret); 3794 find_best_root = 0; 3795 3796 return real_root_func (root, 1); 3797 } 3798 3799 static struct builtin builtin_findroot = 3800 { 3801 "findroot", 3802 findroot_func, 3803 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 3804 "findroot <SIGNATURE | (SIGNATURE,partition[,slice])>", 3805 "Searches across all partitions for the file name SIGNATURE." 3806 " GRUB looks only in the directory /boot/grub/bootsign for the" 3807 " filename and it stops as soon as it finds the first instance of" 3808 " the file - so to be useful the name of the signature file must be" 3809 " unique across all partitions. Once the signature file is found," 3810 " GRUB invokes the \"root\" command on that partition." 3811 " An optional partition and slice may be specified to optimize the search." 3812 }; 3813 3814 3815 /* 3816 * COMMAND to override the default root filesystem for ZFS 3817 * bootfs pool/fs 3818 */ 3819 static int 3820 bootfs_func (char *arg, int flags) 3821 { 3822 int hdbias = 0; 3823 char *biasptr; 3824 char *next; 3825 3826 if (! *arg) { 3827 if (current_bootfs[0] != '\0') 3828 grub_printf ("The zfs boot filesystem is set to '%s'.\n", 3829 current_bootfs); 3830 else if (current_rootpool[0] != 0 && current_bootfs_obj != 0) 3831 grub_printf("The zfs boot filesystem is <default: %s/%u>.", 3832 current_rootpool, current_bootfs_obj); 3833 else 3834 grub_printf ("The zfs boot filesystem will be derived from " 3835 "the default bootfs pool property.\n"); 3836 3837 return (1); 3838 } 3839 3840 /* Verify the zfs filesystem name */ 3841 if (arg[0] == '/' || arg[0] == '\0') { 3842 errnum = ERR_BAD_ARGUMENT; 3843 return 0; 3844 } 3845 if (current_rootpool[0] != 0 && grub_strncmp(arg, 3846 current_rootpool, strlen(current_rootpool))) { 3847 errnum = ERR_BAD_ARGUMENT; 3848 return 0; 3849 } 3850 3851 grub_memmove(current_bootfs, arg, MAXNAMELEN); 3852 3853 return (1); 3854 } 3855 3856 static struct builtin builtin_bootfs = 3857 { 3858 "bootfs", 3859 bootfs_func, 3860 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 3861 "bootfs [ZFSBOOTFS]", 3862 "Set the current zfs boot filesystem to ZFSBOOTFS (rootpool/rootfs)." 3863 }; 3864 3865 3866 /* rootnoverify */ 3867 static int 3868 rootnoverify_func (char *arg, int flags) 3869 { 3870 return real_root_func (arg, 0); 3871 } 3872 3873 static struct builtin builtin_rootnoverify = 3874 { 3875 "rootnoverify", 3876 rootnoverify_func, 3877 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 3878 "rootnoverify [DEVICE [HDBIAS]]", 3879 "Similar to `root', but don't attempt to mount the partition. This" 3880 " is useful for when an OS is outside of the area of the disk that" 3881 " GRUB can read, but setting the correct root device is still" 3882 " desired. Note that the items mentioned in `root' which" 3883 " derived from attempting the mount will NOT work correctly." 3884 }; 3885 3886 3887 /* savedefault */ 3888 static int 3889 savedefault_func (char *arg, int flags) 3890 { 3891 #if !defined(SUPPORT_DISKLESS) && !defined(GRUB_UTIL) 3892 unsigned long tmp_drive = saved_drive; 3893 unsigned long tmp_partition = saved_partition; 3894 char *default_file = (char *) DEFAULT_FILE_BUF; 3895 char buf[10]; 3896 char sect[SECTOR_SIZE]; 3897 int entryno; 3898 int sector_count = 0; 3899 unsigned int saved_sectors[2]; 3900 int saved_offsets[2]; 3901 int saved_lengths[2]; 3902 3903 /* not supported for zfs root */ 3904 if (is_zfs_mount == 1) { 3905 return (0); /* no-op */ 3906 } 3907 3908 /* Save sector information about at most two sectors. */ 3909 auto void disk_read_savesect_func (unsigned int sector, int offset, 3910 int length); 3911 void disk_read_savesect_func (unsigned int sector, int offset, int length) 3912 { 3913 if (sector_count < 2) 3914 { 3915 saved_sectors[sector_count] = sector; 3916 saved_offsets[sector_count] = offset; 3917 saved_lengths[sector_count] = length; 3918 } 3919 sector_count++; 3920 } 3921 3922 /* This command is only useful when you boot an entry from the menu 3923 interface. */ 3924 if (! (flags & BUILTIN_SCRIPT)) 3925 { 3926 errnum = ERR_UNRECOGNIZED; 3927 return 1; 3928 } 3929 3930 /* Determine a saved entry number. */ 3931 if (*arg) 3932 { 3933 if (grub_memcmp (arg, "fallback", sizeof ("fallback") - 1) == 0) 3934 { 3935 int i; 3936 int index = 0; 3937 3938 for (i = 0; i < MAX_FALLBACK_ENTRIES; i++) 3939 { 3940 if (fallback_entries[i] < 0) 3941 break; 3942 if (fallback_entries[i] == current_entryno) 3943 { 3944 index = i + 1; 3945 break; 3946 } 3947 } 3948 3949 if (index >= MAX_FALLBACK_ENTRIES || fallback_entries[index] < 0) 3950 { 3951 /* This is the last. */ 3952 errnum = ERR_BAD_ARGUMENT; 3953 return 1; 3954 } 3955 3956 entryno = fallback_entries[index]; 3957 } 3958 else if (! safe_parse_maxint (&arg, &entryno)) 3959 return 1; 3960 } 3961 else 3962 entryno = current_entryno; 3963 3964 /* Open the default file. */ 3965 saved_drive = boot_drive; 3966 saved_partition = install_partition; 3967 if (grub_open (default_file)) 3968 { 3969 int len; 3970 3971 disk_read_hook = disk_read_savesect_func; 3972 len = grub_read (buf, sizeof (buf)); 3973 disk_read_hook = 0; 3974 grub_close (); 3975 3976 if (len != sizeof (buf)) 3977 { 3978 /* This is too small. Do not modify the file manually, please! */ 3979 errnum = ERR_READ; 3980 goto fail; 3981 } 3982 3983 if (sector_count > 2) 3984 { 3985 /* Is this possible?! Too fragmented! */ 3986 errnum = ERR_FSYS_CORRUPT; 3987 goto fail; 3988 } 3989 3990 /* Set up a string to be written. */ 3991 grub_memset (buf, '\n', sizeof (buf)); 3992 grub_sprintf (buf, "%d", entryno); 3993 3994 if (saved_lengths[0] < sizeof (buf)) 3995 { 3996 /* The file is anchored to another file and the first few bytes 3997 are spanned in two sectors. Uggh... */ 3998 if (! rawread (current_drive, saved_sectors[0], 0, SECTOR_SIZE, 3999 sect)) 4000 goto fail; 4001 grub_memmove (sect + saved_offsets[0], buf, saved_lengths[0]); 4002 if (! rawwrite (current_drive, saved_sectors[0], sect)) 4003 goto fail; 4004 4005 if (! rawread (current_drive, saved_sectors[1], 0, SECTOR_SIZE, 4006 sect)) 4007 goto fail; 4008 grub_memmove (sect + saved_offsets[1], 4009 buf + saved_lengths[0], 4010 sizeof (buf) - saved_lengths[0]); 4011 if (! rawwrite (current_drive, saved_sectors[1], sect)) 4012 goto fail; 4013 } 4014 else 4015 { 4016 /* This is a simple case. It fits into a single sector. */ 4017 if (! rawread (current_drive, saved_sectors[0], 0, SECTOR_SIZE, 4018 sect)) 4019 goto fail; 4020 grub_memmove (sect + saved_offsets[0], buf, sizeof (buf)); 4021 if (! rawwrite (current_drive, saved_sectors[0], sect)) 4022 goto fail; 4023 } 4024 4025 /* Clear the cache. */ 4026 buf_track = BUF_CACHE_INVALID; 4027 } 4028 4029 fail: 4030 saved_drive = tmp_drive; 4031 saved_partition = tmp_partition; 4032 return errnum; 4033 #else /* ! SUPPORT_DISKLESS && ! GRUB_UTIL */ 4034 errnum = ERR_UNRECOGNIZED; 4035 return 1; 4036 #endif /* ! SUPPORT_DISKLESS && ! GRUB_UTIL */ 4037 } 4038 4039 static struct builtin builtin_savedefault = 4040 { 4041 "savedefault", 4042 savedefault_func, 4043 BUILTIN_CMDLINE, 4044 "savedefault [NUM | `fallback']", 4045 "Save the current entry as the default boot entry if no argument is" 4046 " specified. If a number is specified, this number is saved. If" 4047 " `fallback' is used, next fallback entry is saved." 4048 }; 4049 4050 4051 #ifdef SUPPORT_SERIAL 4052 /* serial */ 4053 static int 4054 serial_func (char *arg, int flags) 4055 { 4056 unsigned short port = serial_hw_get_port (0); 4057 unsigned int speed = 9600; 4058 int word_len = UART_8BITS_WORD; 4059 int parity = UART_NO_PARITY; 4060 int stop_bit_len = UART_1_STOP_BIT; 4061 4062 /* Process GNU-style long options. 4063 FIXME: We should implement a getopt-like function, to avoid 4064 duplications. */ 4065 while (1) 4066 { 4067 if (grub_memcmp (arg, "--unit=", sizeof ("--unit=") - 1) == 0) 4068 { 4069 char *p = arg + sizeof ("--unit=") - 1; 4070 int unit; 4071 4072 if (! safe_parse_maxint (&p, &unit)) 4073 return 1; 4074 4075 if (unit < 0 || unit > 3) 4076 { 4077 errnum = ERR_DEV_VALUES; 4078 return 1; 4079 } 4080 4081 port = serial_hw_get_port (unit); 4082 } 4083 else if (grub_memcmp (arg, "--speed=", sizeof ("--speed=") - 1) == 0) 4084 { 4085 char *p = arg + sizeof ("--speed=") - 1; 4086 int num; 4087 4088 if (! safe_parse_maxint (&p, &num)) 4089 return 1; 4090 4091 speed = (unsigned int) num; 4092 } 4093 else if (grub_memcmp (arg, "--port=", sizeof ("--port=") - 1) == 0) 4094 { 4095 char *p = arg + sizeof ("--port=") - 1; 4096 int num; 4097 4098 if (! safe_parse_maxint (&p, &num)) 4099 return 1; 4100 4101 port = (unsigned short) num; 4102 } 4103 else if (grub_memcmp (arg, "--word=", sizeof ("--word=") - 1) == 0) 4104 { 4105 char *p = arg + sizeof ("--word=") - 1; 4106 int len; 4107 4108 if (! safe_parse_maxint (&p, &len)) 4109 return 1; 4110 4111 switch (len) 4112 { 4113 case 5: word_len = UART_5BITS_WORD; break; 4114 case 6: word_len = UART_6BITS_WORD; break; 4115 case 7: word_len = UART_7BITS_WORD; break; 4116 case 8: word_len = UART_8BITS_WORD; break; 4117 default: 4118 errnum = ERR_BAD_ARGUMENT; 4119 return 1; 4120 } 4121 } 4122 else if (grub_memcmp (arg, "--stop=", sizeof ("--stop=") - 1) == 0) 4123 { 4124 char *p = arg + sizeof ("--stop=") - 1; 4125 int len; 4126 4127 if (! safe_parse_maxint (&p, &len)) 4128 return 1; 4129 4130 switch (len) 4131 { 4132 case 1: stop_bit_len = UART_1_STOP_BIT; break; 4133 case 2: stop_bit_len = UART_2_STOP_BITS; break; 4134 default: 4135 errnum = ERR_BAD_ARGUMENT; 4136 return 1; 4137 } 4138 } 4139 else if (grub_memcmp (arg, "--parity=", sizeof ("--parity=") - 1) == 0) 4140 { 4141 char *p = arg + sizeof ("--parity=") - 1; 4142 4143 if (grub_memcmp (p, "no", sizeof ("no") - 1) == 0) 4144 parity = UART_NO_PARITY; 4145 else if (grub_memcmp (p, "odd", sizeof ("odd") - 1) == 0) 4146 parity = UART_ODD_PARITY; 4147 else if (grub_memcmp (p, "even", sizeof ("even") - 1) == 0) 4148 parity = UART_EVEN_PARITY; 4149 else 4150 { 4151 errnum = ERR_BAD_ARGUMENT; 4152 return 1; 4153 } 4154 } 4155 # ifdef GRUB_UTIL 4156 /* In the grub shell, don't use any port number but open a tty 4157 device instead. */ 4158 else if (grub_memcmp (arg, "--device=", sizeof ("--device=") - 1) == 0) 4159 { 4160 char *p = arg + sizeof ("--device=") - 1; 4161 char dev[256]; /* XXX */ 4162 char *q = dev; 4163 4164 while (*p && ! grub_isspace (*p)) 4165 *q++ = *p++; 4166 4167 *q = 0; 4168 serial_set_device (dev); 4169 } 4170 # endif /* GRUB_UTIL */ 4171 else 4172 break; 4173 4174 arg = skip_to (0, arg); 4175 } 4176 4177 /* Initialize the serial unit. */ 4178 if (! serial_hw_init (port, speed, word_len, parity, stop_bit_len)) 4179 { 4180 errnum = ERR_BAD_ARGUMENT; 4181 return 1; 4182 } 4183 4184 return 0; 4185 } 4186 4187 static struct builtin builtin_serial = 4188 { 4189 "serial", 4190 serial_func, 4191 BUILTIN_MENU | BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 4192 "serial [--unit=UNIT] [--port=PORT] [--speed=SPEED] [--word=WORD] [--parity=PARITY] [--stop=STOP] [--device=DEV]", 4193 "Initialize a serial device. UNIT is a digit that specifies which serial" 4194 " device is used (e.g. 0 == COM1). If you need to specify the port number," 4195 " set it by --port. SPEED is the DTE-DTE speed. WORD is the word length," 4196 " PARITY is the type of parity, which is one of `no', `odd' and `even'." 4197 " STOP is the length of stop bit(s). The option --device can be used only" 4198 " in the grub shell, which specifies the file name of a tty device. The" 4199 " default values are COM1, 9600, 8N1." 4200 }; 4201 #endif /* SUPPORT_SERIAL */ 4202 4203 4204 /* setkey */ 4205 struct keysym 4206 { 4207 char *unshifted_name; /* the name in unshifted state */ 4208 char *shifted_name; /* the name in shifted state */ 4209 unsigned char unshifted_ascii; /* the ascii code in unshifted state */ 4210 unsigned char shifted_ascii; /* the ascii code in shifted state */ 4211 unsigned char keycode; /* keyboard scancode */ 4212 }; 4213 4214 /* The table for key symbols. If the "shifted" member of an entry is 4215 NULL, the entry does not have shifted state. */ 4216 static struct keysym keysym_table[] = 4217 { 4218 {"escape", 0, 0x1b, 0, 0x01}, 4219 {"1", "exclam", '1', '!', 0x02}, 4220 {"2", "at", '2', '@', 0x03}, 4221 {"3", "numbersign", '3', '#', 0x04}, 4222 {"4", "dollar", '4', '$', 0x05}, 4223 {"5", "percent", '5', '%', 0x06}, 4224 {"6", "caret", '6', '^', 0x07}, 4225 {"7", "ampersand", '7', '&', 0x08}, 4226 {"8", "asterisk", '8', '*', 0x09}, 4227 {"9", "parenleft", '9', '(', 0x0a}, 4228 {"0", "parenright", '0', ')', 0x0b}, 4229 {"minus", "underscore", '-', '_', 0x0c}, 4230 {"equal", "plus", '=', '+', 0x0d}, 4231 {"backspace", 0, '\b', 0, 0x0e}, 4232 {"tab", 0, '\t', 0, 0x0f}, 4233 {"q", "Q", 'q', 'Q', 0x10}, 4234 {"w", "W", 'w', 'W', 0x11}, 4235 {"e", "E", 'e', 'E', 0x12}, 4236 {"r", "R", 'r', 'R', 0x13}, 4237 {"t", "T", 't', 'T', 0x14}, 4238 {"y", "Y", 'y', 'Y', 0x15}, 4239 {"u", "U", 'u', 'U', 0x16}, 4240 {"i", "I", 'i', 'I', 0x17}, 4241 {"o", "O", 'o', 'O', 0x18}, 4242 {"p", "P", 'p', 'P', 0x19}, 4243 {"bracketleft", "braceleft", '[', '{', 0x1a}, 4244 {"bracketright", "braceright", ']', '}', 0x1b}, 4245 {"enter", 0, '\n', 0, 0x1c}, 4246 {"control", 0, 0, 0, 0x1d}, 4247 {"a", "A", 'a', 'A', 0x1e}, 4248 {"s", "S", 's', 'S', 0x1f}, 4249 {"d", "D", 'd', 'D', 0x20}, 4250 {"f", "F", 'f', 'F', 0x21}, 4251 {"g", "G", 'g', 'G', 0x22}, 4252 {"h", "H", 'h', 'H', 0x23}, 4253 {"j", "J", 'j', 'J', 0x24}, 4254 {"k", "K", 'k', 'K', 0x25}, 4255 {"l", "L", 'l', 'L', 0x26}, 4256 {"semicolon", "colon", ';', ':', 0x27}, 4257 {"quote", "doublequote", '\'', '"', 0x28}, 4258 {"backquote", "tilde", '`', '~', 0x29}, 4259 {"shift", 0, 0, 0, 0x2a}, 4260 {"backslash", "bar", '\\', '|', 0x2b}, 4261 {"z", "Z", 'z', 'Z', 0x2c}, 4262 {"x", "X", 'x', 'X', 0x2d}, 4263 {"c", "C", 'c', 'C', 0x2e}, 4264 {"v", "V", 'v', 'V', 0x2f}, 4265 {"b", "B", 'b', 'B', 0x30}, 4266 {"n", "N", 'n', 'N', 0x31}, 4267 {"m", "M", 'm', 'M', 0x32}, 4268 {"comma", "less", ',', '<', 0x33}, 4269 {"period", "greater", '.', '>', 0x34}, 4270 {"slash", "question", '/', '?', 0x35}, 4271 {"alt", 0, 0, 0, 0x38}, 4272 {"space", 0, ' ', 0, 0x39}, 4273 {"capslock", 0, 0, 0, 0x3a}, 4274 {"F1", 0, 0, 0, 0x3b}, 4275 {"F2", 0, 0, 0, 0x3c}, 4276 {"F3", 0, 0, 0, 0x3d}, 4277 {"F4", 0, 0, 0, 0x3e}, 4278 {"F5", 0, 0, 0, 0x3f}, 4279 {"F6", 0, 0, 0, 0x40}, 4280 {"F7", 0, 0, 0, 0x41}, 4281 {"F8", 0, 0, 0, 0x42}, 4282 {"F9", 0, 0, 0, 0x43}, 4283 {"F10", 0, 0, 0, 0x44}, 4284 /* Caution: do not add NumLock here! we cannot deal with it properly. */ 4285 {"delete", 0, 0x7f, 0, 0x53} 4286 }; 4287 4288 static int 4289 setkey_func (char *arg, int flags) 4290 { 4291 char *to_key, *from_key; 4292 int to_code, from_code; 4293 int map_in_interrupt = 0; 4294 4295 auto int find_key_code (char *key); 4296 auto int find_ascii_code (char *key); 4297 4298 auto int find_key_code (char *key) 4299 { 4300 int i; 4301 4302 for (i = 0; i < sizeof (keysym_table) / sizeof (keysym_table[0]); i++) 4303 { 4304 if (keysym_table[i].unshifted_name && 4305 grub_strcmp (key, keysym_table[i].unshifted_name) == 0) 4306 return keysym_table[i].keycode; 4307 else if (keysym_table[i].shifted_name && 4308 grub_strcmp (key, keysym_table[i].shifted_name) == 0) 4309 return keysym_table[i].keycode; 4310 } 4311 4312 return 0; 4313 } 4314 4315 auto int find_ascii_code (char *key) 4316 { 4317 int i; 4318 4319 for (i = 0; i < sizeof (keysym_table) / sizeof (keysym_table[0]); i++) 4320 { 4321 if (keysym_table[i].unshifted_name && 4322 grub_strcmp (key, keysym_table[i].unshifted_name) == 0) 4323 return keysym_table[i].unshifted_ascii; 4324 else if (keysym_table[i].shifted_name && 4325 grub_strcmp (key, keysym_table[i].shifted_name) == 0) 4326 return keysym_table[i].shifted_ascii; 4327 } 4328 4329 return 0; 4330 } 4331 4332 to_key = arg; 4333 from_key = skip_to (0, to_key); 4334 4335 if (! *to_key) 4336 { 4337 /* If the user specifies no argument, reset the key mappings. */ 4338 grub_memset (bios_key_map, 0, KEY_MAP_SIZE * sizeof (unsigned short)); 4339 grub_memset (ascii_key_map, 0, KEY_MAP_SIZE * sizeof (unsigned short)); 4340 4341 return 0; 4342 } 4343 else if (! *from_key) 4344 { 4345 /* The user must specify two arguments or zero argument. */ 4346 errnum = ERR_BAD_ARGUMENT; 4347 return 1; 4348 } 4349 4350 nul_terminate (to_key); 4351 nul_terminate (from_key); 4352 4353 to_code = find_ascii_code (to_key); 4354 from_code = find_ascii_code (from_key); 4355 if (! to_code || ! from_code) 4356 { 4357 map_in_interrupt = 1; 4358 to_code = find_key_code (to_key); 4359 from_code = find_key_code (from_key); 4360 if (! to_code || ! from_code) 4361 { 4362 errnum = ERR_BAD_ARGUMENT; 4363 return 1; 4364 } 4365 } 4366 4367 if (map_in_interrupt) 4368 { 4369 int i; 4370 4371 /* Find an empty slot. */ 4372 for (i = 0; i < KEY_MAP_SIZE; i++) 4373 { 4374 if ((bios_key_map[i] & 0xff) == from_code) 4375 /* Perhaps the user wants to overwrite the map. */ 4376 break; 4377 4378 if (! bios_key_map[i]) 4379 break; 4380 } 4381 4382 if (i == KEY_MAP_SIZE) 4383 { 4384 errnum = ERR_WONT_FIT; 4385 return 1; 4386 } 4387 4388 if (to_code == from_code) 4389 /* If TO is equal to FROM, delete the entry. */ 4390 grub_memmove ((char *) &bios_key_map[i], 4391 (char *) &bios_key_map[i + 1], 4392 sizeof (unsigned short) * (KEY_MAP_SIZE - i)); 4393 else 4394 bios_key_map[i] = (to_code << 8) | from_code; 4395 4396 /* Ugly but should work. */ 4397 unset_int15_handler (); 4398 set_int15_handler (); 4399 } 4400 else 4401 { 4402 int i; 4403 4404 /* Find an empty slot. */ 4405 for (i = 0; i < KEY_MAP_SIZE; i++) 4406 { 4407 if ((ascii_key_map[i] & 0xff) == from_code) 4408 /* Perhaps the user wants to overwrite the map. */ 4409 break; 4410 4411 if (! ascii_key_map[i]) 4412 break; 4413 } 4414 4415 if (i == KEY_MAP_SIZE) 4416 { 4417 errnum = ERR_WONT_FIT; 4418 return 1; 4419 } 4420 4421 if (to_code == from_code) 4422 /* If TO is equal to FROM, delete the entry. */ 4423 grub_memmove ((char *) &ascii_key_map[i], 4424 (char *) &ascii_key_map[i + 1], 4425 sizeof (unsigned short) * (KEY_MAP_SIZE - i)); 4426 else 4427 ascii_key_map[i] = (to_code << 8) | from_code; 4428 } 4429 4430 return 0; 4431 } 4432 4433 static struct builtin builtin_setkey = 4434 { 4435 "setkey", 4436 setkey_func, 4437 BUILTIN_CMDLINE | BUILTIN_MENU | BUILTIN_HELP_LIST, 4438 "setkey [TO_KEY FROM_KEY]", 4439 "Change the keyboard map. The key FROM_KEY is mapped to the key TO_KEY." 4440 " A key must be an alphabet, a digit, or one of these: escape, exclam," 4441 " at, numbersign, dollar, percent, caret, ampersand, asterisk, parenleft," 4442 " parenright, minus, underscore, equal, plus, backspace, tab, bracketleft," 4443 " braceleft, bracketright, braceright, enter, control, semicolon, colon," 4444 " quote, doublequote, backquote, tilde, shift, backslash, bar, comma," 4445 " less, period, greater, slash, question, alt, space, capslock, FX (X" 4446 " is a digit), and delete. If no argument is specified, reset key" 4447 " mappings." 4448 }; 4449 4450 4451 /* setup */ 4452 static int 4453 setup_func (char *arg, int flags) 4454 { 4455 /* Point to the string of the installed drive/partition. */ 4456 char *install_ptr; 4457 /* Point to the string of the drive/parition where the GRUB images 4458 reside. */ 4459 char *image_ptr; 4460 unsigned long installed_drive, installed_partition; 4461 unsigned long image_drive, image_partition; 4462 unsigned long tmp_drive, tmp_partition; 4463 char stage1[64]; 4464 char stage2[64]; 4465 char config_filename[64]; 4466 char real_config_filename[64]; 4467 char cmd_arg[256]; 4468 char device[16]; 4469 char *buffer = (char *) RAW_ADDR (0x100000); 4470 int is_force_lba = 0; 4471 char *stage2_arg = 0; 4472 char *prefix = 0; 4473 4474 auto int check_file (char *file); 4475 auto void sprint_device (int drive, int partition); 4476 auto int embed_stage1_5 (char * stage1_5, int drive, int partition); 4477 4478 /* Check if the file FILE exists like Autoconf. */ 4479 int check_file (char *file) 4480 { 4481 int ret; 4482 4483 grub_printf (" Checking if \"%s\" exists... ", file); 4484 ret = grub_open (file); 4485 if (ret) 4486 { 4487 grub_close (); 4488 grub_printf ("yes\n"); 4489 } 4490 else 4491 grub_printf ("no\n"); 4492 4493 return ret; 4494 } 4495 4496 /* Construct a device name in DEVICE. */ 4497 void sprint_device (int drive, int partition) 4498 { 4499 grub_sprintf (device, "(%cd%d", 4500 (drive & 0x80) ? 'h' : 'f', 4501 drive & ~0x80); 4502 if ((partition & 0xFF0000) != 0xFF0000) 4503 { 4504 char tmp[16]; 4505 grub_sprintf (tmp, ",%d", (partition >> 16) & 0xFF); 4506 grub_strncat (device, tmp, sizeof (device)); 4507 } 4508 if ((partition & 0x00FF00) != 0x00FF00) 4509 { 4510 char tmp[16]; 4511 grub_sprintf (tmp, ",%c", 'a' + ((partition >> 8) & 0xFF)); 4512 grub_strncat (device, tmp, sizeof (device)); 4513 } 4514 grub_strncat (device, ")", sizeof (device)); 4515 } 4516 4517 int embed_stage1_5 (char *stage1_5, int drive, int partition) 4518 { 4519 /* We install GRUB into the MBR, so try to embed the 4520 Stage 1.5 in the sectors right after the MBR. */ 4521 sprint_device (drive, partition); 4522 grub_sprintf (cmd_arg, "%s %s", stage1_5, device); 4523 4524 /* Notify what will be run. */ 4525 grub_printf (" Running \"embed %s\"... ", cmd_arg); 4526 4527 embed_func (cmd_arg, flags); 4528 if (! errnum) 4529 { 4530 /* Construct the blocklist representation. */ 4531 grub_sprintf (buffer, "%s%s", device, embed_info); 4532 grub_printf ("succeeded\n"); 4533 return 1; 4534 } 4535 else 4536 { 4537 grub_printf ("failed (this is not fatal)\n"); 4538 return 0; 4539 } 4540 } 4541 4542 struct stage1_5_map { 4543 char *fsys; 4544 char *name; 4545 }; 4546 struct stage1_5_map stage1_5_map[] = 4547 { 4548 {"ext2fs", "/e2fs_stage1_5"}, 4549 {"fat", "/fat_stage1_5"}, 4550 {"ufs2", "/ufs2_stage1_5"}, 4551 {"ffs", "/ffs_stage1_5"}, 4552 {"iso9660", "/iso9660_stage1_5"}, 4553 {"jfs", "/jfs_stage1_5"}, 4554 {"minix", "/minix_stage1_5"}, 4555 {"reiserfs", "/reiserfs_stage1_5"}, 4556 {"vstafs", "/vstafs_stage1_5"}, 4557 {"xfs", "/xfs_stage1_5"}, 4558 {"ufs", "/ufs_stage1_5"} 4559 }; 4560 4561 tmp_drive = saved_drive; 4562 tmp_partition = saved_partition; 4563 4564 /* Check if the user specifies --force-lba. */ 4565 while (1) 4566 { 4567 if (grub_memcmp ("--force-lba", arg, sizeof ("--force-lba") - 1) == 0) 4568 { 4569 is_force_lba = 1; 4570 arg = skip_to (0, arg); 4571 } 4572 else if (grub_memcmp ("--prefix=", arg, sizeof ("--prefix=") - 1) == 0) 4573 { 4574 prefix = arg + sizeof ("--prefix=") - 1; 4575 arg = skip_to (0, arg); 4576 nul_terminate (prefix); 4577 } 4578 #ifdef GRUB_UTIL 4579 else if (grub_memcmp ("--stage2=", arg, sizeof ("--stage2=") - 1) == 0) 4580 { 4581 stage2_arg = arg; 4582 arg = skip_to (0, arg); 4583 nul_terminate (stage2_arg); 4584 } 4585 #endif /* GRUB_UTIL */ 4586 else 4587 break; 4588 } 4589 4590 install_ptr = arg; 4591 image_ptr = skip_to (0, install_ptr); 4592 4593 /* Make sure that INSTALL_PTR is valid. */ 4594 set_device (install_ptr); 4595 if (errnum) 4596 return 1; 4597 4598 installed_drive = current_drive; 4599 installed_partition = current_partition; 4600 4601 /* Mount the drive pointed by IMAGE_PTR. */ 4602 if (*image_ptr) 4603 { 4604 /* If the drive/partition where the images reside is specified, 4605 get the drive and the partition. */ 4606 set_device (image_ptr); 4607 if (errnum) 4608 return 1; 4609 } 4610 else 4611 { 4612 /* If omitted, use SAVED_PARTITION and SAVED_DRIVE. */ 4613 current_drive = saved_drive; 4614 current_partition = saved_partition; 4615 } 4616 4617 image_drive = saved_drive = current_drive; 4618 image_partition = saved_partition = current_partition; 4619 4620 /* Open it. */ 4621 if (! open_device ()) 4622 goto fail; 4623 4624 /* Check if stage1 exists. If the user doesn't specify the option 4625 `--prefix', attempt /boot/grub and /grub. */ 4626 /* NOTE: It is dangerous to run this command without `--prefix' in the 4627 grub shell, since that affects `--stage2'. */ 4628 if (! prefix) 4629 { 4630 prefix = "/boot/grub"; 4631 grub_sprintf (stage1, "%s%s", prefix, "/stage1"); 4632 if (! check_file (stage1)) 4633 { 4634 errnum = ERR_NONE; 4635 prefix = "/grub"; 4636 grub_sprintf (stage1, "%s%s", prefix, "/stage1"); 4637 if (! check_file (stage1)) 4638 goto fail; 4639 } 4640 } 4641 else 4642 { 4643 grub_sprintf (stage1, "%s%s", prefix, "/stage1"); 4644 if (! check_file (stage1)) 4645 goto fail; 4646 } 4647 4648 /* The prefix was determined. */ 4649 grub_sprintf (stage2, "%s%s", prefix, "/stage2"); 4650 grub_sprintf (config_filename, "%s%s", prefix, "/menu.lst"); 4651 *real_config_filename = 0; 4652 4653 /* Check if stage2 exists. */ 4654 if (! check_file (stage2)) 4655 goto fail; 4656 4657 { 4658 char *fsys = fsys_table[fsys_type].name; 4659 int i; 4660 int size = sizeof (stage1_5_map) / sizeof (stage1_5_map[0]); 4661 4662 /* Iterate finding the same filesystem name as FSYS. */ 4663 for (i = 0; i < size; i++) 4664 if (grub_strcmp (fsys, stage1_5_map[i].fsys) == 0) 4665 { 4666 /* OK, check if the Stage 1.5 exists. */ 4667 char stage1_5[64]; 4668 4669 grub_sprintf (stage1_5, "%s%s", prefix, stage1_5_map[i].name); 4670 if (check_file (stage1_5)) 4671 { 4672 if (embed_stage1_5 (stage1_5, 4673 installed_drive, installed_partition) 4674 || embed_stage1_5 (stage1_5, 4675 image_drive, image_partition)) 4676 { 4677 grub_strcpy (real_config_filename, config_filename); 4678 sprint_device (image_drive, image_partition); 4679 grub_sprintf (config_filename, "%s%s", device, stage2); 4680 grub_strcpy (stage2, buffer); 4681 } 4682 } 4683 errnum = 0; 4684 break; 4685 } 4686 } 4687 4688 /* Construct a string that is used by the command "install" as its 4689 arguments. */ 4690 sprint_device (installed_drive, installed_partition); 4691 4692 #if 1 4693 /* Don't embed a drive number unnecessarily. */ 4694 grub_sprintf (cmd_arg, "%s%s%s%s %s%s %s p %s %s", 4695 is_force_lba? "--force-lba " : "", 4696 stage2_arg? stage2_arg : "", 4697 stage2_arg? " " : "", 4698 stage1, 4699 (installed_drive != image_drive) ? "d " : "", 4700 device, 4701 stage2, 4702 config_filename, 4703 real_config_filename); 4704 #else /* NOT USED */ 4705 /* This code was used, because we belived some BIOSes had a problem 4706 that they didn't pass a booting drive correctly. It turned out, 4707 however, stage1 could trash a booting drive when checking LBA support, 4708 because some BIOSes modified the register %dx in INT 13H, AH=48H. 4709 So it becamed unclear whether GRUB should use a pre-defined booting 4710 drive or not. If the problem still exists, it would be necessary to 4711 switch back to this code. */ 4712 grub_sprintf (cmd_arg, "%s%s%s%s d %s %s p %s %s", 4713 is_force_lba? "--force-lba " : "", 4714 stage2_arg? stage2_arg : "", 4715 stage2_arg? " " : "", 4716 stage1, 4717 device, 4718 stage2, 4719 config_filename, 4720 real_config_filename); 4721 #endif /* NOT USED */ 4722 4723 /* Notify what will be run. */ 4724 grub_printf (" Running \"install %s\"... ", cmd_arg); 4725 4726 /* Make sure that SAVED_DRIVE and SAVED_PARTITION are identical 4727 with IMAGE_DRIVE and IMAGE_PARTITION, respectively. */ 4728 saved_drive = image_drive; 4729 saved_partition = image_partition; 4730 4731 /* Run the command. */ 4732 if (! install_func (cmd_arg, flags)) 4733 grub_printf ("succeeded\nDone.\n"); 4734 else 4735 grub_printf ("failed\n"); 4736 4737 fail: 4738 saved_drive = tmp_drive; 4739 saved_partition = tmp_partition; 4740 return errnum; 4741 } 4742 4743 static struct builtin builtin_setup = 4744 { 4745 "setup", 4746 setup_func, 4747 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 4748 "setup [--prefix=DIR] [--stage2=STAGE2_FILE] [--force-lba] INSTALL_DEVICE [IMAGE_DEVICE]", 4749 "Set up the installation of GRUB automatically. This command uses" 4750 " the more flexible command \"install\" in the backend and installs" 4751 " GRUB into the device INSTALL_DEVICE. If IMAGE_DEVICE is specified," 4752 " then find the GRUB images in the device IMAGE_DEVICE, otherwise" 4753 " use the current \"root device\", which can be set by the command" 4754 " \"root\". If you know that your BIOS should support LBA but GRUB" 4755 " doesn't work in LBA mode, specify the option `--force-lba'." 4756 " If you install GRUB under the grub shell and you cannot unmount the" 4757 " partition where GRUB images reside, specify the option `--stage2'" 4758 " to tell GRUB the file name under your OS." 4759 }; 4760 4761 4762 #if defined(SUPPORT_SERIAL) || defined(SUPPORT_HERCULES) || defined(SUPPORT_GRAPHICS) 4763 /* terminal */ 4764 static int 4765 terminal_func (char *arg, int flags) 4766 { 4767 /* The index of the default terminal in TERM_TABLE. */ 4768 int default_term = -1; 4769 struct term_entry *prev_term = current_term; 4770 int to = -1; 4771 int lines = 0; 4772 int no_message = 0; 4773 unsigned long term_flags = 0; 4774 /* XXX: Assume less than 32 terminals. */ 4775 unsigned long term_bitmap = 0; 4776 4777 /* Get GNU-style long options. */ 4778 while (1) 4779 { 4780 if (grub_memcmp (arg, "--dumb", sizeof ("--dumb") - 1) == 0) 4781 term_flags |= TERM_DUMB; 4782 else if (grub_memcmp (arg, "--no-echo", sizeof ("--no-echo") - 1) == 0) 4783 /* ``--no-echo'' implies ``--no-edit''. */ 4784 term_flags |= (TERM_NO_ECHO | TERM_NO_EDIT); 4785 else if (grub_memcmp (arg, "--no-edit", sizeof ("--no-edit") - 1) == 0) 4786 term_flags |= TERM_NO_EDIT; 4787 else if (grub_memcmp (arg, "--timeout=", sizeof ("--timeout=") - 1) == 0) 4788 { 4789 char *val = arg + sizeof ("--timeout=") - 1; 4790 4791 if (! safe_parse_maxint (&val, &to)) 4792 return 1; 4793 } 4794 else if (grub_memcmp (arg, "--lines=", sizeof ("--lines=") - 1) == 0) 4795 { 4796 char *val = arg + sizeof ("--lines=") - 1; 4797 4798 if (! safe_parse_maxint (&val, &lines)) 4799 return 1; 4800 4801 /* Probably less than four is meaningless.... */ 4802 if (lines < 4) 4803 { 4804 errnum = ERR_BAD_ARGUMENT; 4805 return 1; 4806 } 4807 } 4808 else if (grub_memcmp (arg, "--silent", sizeof ("--silent") - 1) == 0) 4809 no_message = 1; 4810 else 4811 break; 4812 4813 arg = skip_to (0, arg); 4814 } 4815 4816 /* If no argument is specified, show current setting. */ 4817 if (! *arg) 4818 { 4819 grub_printf ("%s%s%s%s\n", 4820 current_term->name, 4821 current_term->flags & TERM_DUMB ? " (dumb)" : "", 4822 current_term->flags & TERM_NO_EDIT ? " (no edit)" : "", 4823 current_term->flags & TERM_NO_ECHO ? " (no echo)" : ""); 4824 return 0; 4825 } 4826 4827 while (*arg) 4828 { 4829 int i; 4830 char *next = skip_to (0, arg); 4831 4832 nul_terminate (arg); 4833 4834 for (i = 0; term_table[i].name; i++) 4835 { 4836 if (grub_strcmp (arg, term_table[i].name) == 0) 4837 { 4838 if (term_table[i].flags & TERM_NEED_INIT) 4839 { 4840 errnum = ERR_DEV_NEED_INIT; 4841 return 1; 4842 } 4843 4844 if (default_term < 0) 4845 default_term = i; 4846 4847 term_bitmap |= (1 << i); 4848 break; 4849 } 4850 } 4851 4852 if (! term_table[i].name) 4853 { 4854 errnum = ERR_BAD_ARGUMENT; 4855 return 1; 4856 } 4857 4858 arg = next; 4859 } 4860 4861 /* If multiple terminals are specified, wait until the user pushes any 4862 key on one of the terminals. */ 4863 if (term_bitmap & ~(1 << default_term)) 4864 { 4865 int time1, time2 = -1; 4866 4867 /* XXX: Disable the pager. */ 4868 count_lines = -1; 4869 4870 /* Get current time. */ 4871 while ((time1 = getrtsecs ()) == 0xFF) 4872 ; 4873 4874 /* Wait for a key input. */ 4875 while (to) 4876 { 4877 int i; 4878 4879 for (i = 0; term_table[i].name; i++) 4880 { 4881 if (term_bitmap & (1 << i)) 4882 { 4883 if (term_table[i].checkkey () >= 0) 4884 { 4885 (void) term_table[i].getkey (); 4886 default_term = i; 4887 4888 goto end; 4889 } 4890 } 4891 } 4892 4893 /* Prompt the user, once per sec. */ 4894 if ((time1 = getrtsecs ()) != time2 && time1 != 0xFF) 4895 { 4896 if (! no_message) 4897 { 4898 /* Need to set CURRENT_TERM to each of selected 4899 terminals. */ 4900 for (i = 0; term_table[i].name; i++) 4901 if (term_bitmap & (1 << i)) 4902 { 4903 current_term = term_table + i; 4904 grub_printf ("\rPress any key to continue.\n"); 4905 } 4906 4907 /* Restore CURRENT_TERM. */ 4908 current_term = prev_term; 4909 } 4910 4911 time2 = time1; 4912 if (to > 0) 4913 to--; 4914 } 4915 } 4916 } 4917 4918 end: 4919 current_term = term_table + default_term; 4920 current_term->flags = term_flags; 4921 4922 if (lines) 4923 max_lines = lines; 4924 else 4925 max_lines = current_term->max_lines; 4926 4927 /* If the interface is currently the command-line, 4928 restart it to repaint the screen. */ 4929 if ((current_term != prev_term) && (flags & BUILTIN_CMDLINE)){ 4930 if (prev_term->shutdown) 4931 prev_term->shutdown(); 4932 if (current_term->startup) 4933 current_term->startup(); 4934 grub_longjmp (restart_cmdline_env, 0); 4935 } 4936 4937 return 0; 4938 } 4939 4940 static struct builtin builtin_terminal = 4941 { 4942 "terminal", 4943 terminal_func, 4944 BUILTIN_MENU | BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 4945 "terminal [--dumb] [--no-echo] [--no-edit] [--timeout=SECS] [--lines=LINES] [--silent] [console] [serial] [hercules] [graphics] [composite]", 4946 "Select a terminal. When multiple terminals are specified, wait until" 4947 " you push any key to continue. If both console and serial are specified," 4948 " the terminal to which you input a key first will be selected. If no" 4949 " argument is specified, print current setting. To accomodate systems" 4950 " where console redirection may or may not be present, the composite" 4951 " console will direct output to the serial and BIOS consoles, and accept" 4952 " input from either one, without requiring selection. The option --dumb" 4953 " specifies that your terminal is dumb, otherwise, vt100-compatibility" 4954 " is assumed. If you specify --no-echo, input characters won't be echoed." 4955 " If you specify --no-edit, the BASH-like editing feature will be disabled." 4956 " If --timeout is present, this command will wait at most for SECS" 4957 " seconds. The option --lines specifies the maximum number of lines." 4958 " The option --silent is used to suppress messages." 4959 }; 4960 #endif /* SUPPORT_SERIAL || SUPPORT_HERCULES || SUPPORT_GRAPHICS */ 4961 4962 4963 #ifdef SUPPORT_SERIAL 4964 static int 4965 terminfo_func (char *arg, int flags) 4966 { 4967 struct terminfo term; 4968 4969 if (*arg) 4970 { 4971 struct 4972 { 4973 const char *name; 4974 char *var; 4975 } 4976 options[] = 4977 { 4978 {"--name=", term.name}, 4979 {"--cursor-address=", term.cursor_address}, 4980 {"--clear-screen=", term.clear_screen}, 4981 {"--enter-standout-mode=", term.enter_standout_mode}, 4982 {"--exit-standout-mode=", term.exit_standout_mode} 4983 }; 4984 4985 grub_memset (&term, 0, sizeof (term)); 4986 4987 while (*arg) 4988 { 4989 int i; 4990 char *next = skip_to (0, arg); 4991 4992 nul_terminate (arg); 4993 4994 for (i = 0; i < sizeof (options) / sizeof (options[0]); i++) 4995 { 4996 const char *name = options[i].name; 4997 int len = grub_strlen (name); 4998 4999 if (! grub_memcmp (arg, name, len)) 5000 { 5001 grub_strcpy (options[i].var, ti_unescape_string (arg + len)); 5002 break; 5003 } 5004 } 5005 5006 if (i == sizeof (options) / sizeof (options[0])) 5007 { 5008 errnum = ERR_BAD_ARGUMENT; 5009 return errnum; 5010 } 5011 5012 arg = next; 5013 } 5014 5015 if (term.name[0] == 0 || term.cursor_address[0] == 0) 5016 { 5017 errnum = ERR_BAD_ARGUMENT; 5018 return errnum; 5019 } 5020 5021 ti_set_term (&term); 5022 } 5023 else 5024 { 5025 /* No option specifies printing out current settings. */ 5026 ti_get_term (&term); 5027 5028 grub_printf ("name=%s\n", 5029 ti_escape_string (term.name)); 5030 grub_printf ("cursor_address=%s\n", 5031 ti_escape_string (term.cursor_address)); 5032 grub_printf ("clear_screen=%s\n", 5033 ti_escape_string (term.clear_screen)); 5034 grub_printf ("enter_standout_mode=%s\n", 5035 ti_escape_string (term.enter_standout_mode)); 5036 grub_printf ("exit_standout_mode=%s\n", 5037 ti_escape_string (term.exit_standout_mode)); 5038 } 5039 5040 return 0; 5041 } 5042 5043 static struct builtin builtin_terminfo = 5044 { 5045 "terminfo", 5046 terminfo_func, 5047 BUILTIN_MENU | BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 5048 "terminfo [--name=NAME --cursor-address=SEQ [--clear-screen=SEQ]" 5049 " [--enter-standout-mode=SEQ] [--exit-standout-mode=SEQ]]", 5050 5051 "Define the capabilities of your terminal. Use this command to" 5052 " define escape sequences, if it is not vt100-compatible." 5053 " You may use \\e for ESC and ^X for a control character." 5054 " If no option is specified, the current settings are printed." 5055 }; 5056 #endif /* SUPPORT_SERIAL */ 5057 5058 5059 /* testload */ 5060 static int 5061 testload_func (char *arg, int flags) 5062 { 5063 int i; 5064 5065 kernel_type = KERNEL_TYPE_NONE; 5066 5067 if (! grub_open (arg)) 5068 return 1; 5069 5070 disk_read_hook = disk_read_print_func; 5071 5072 /* Perform filesystem test on the specified file. */ 5073 /* Read whole file first. */ 5074 grub_printf ("Whole file: "); 5075 5076 grub_read ((char *) RAW_ADDR (0x100000), -1); 5077 5078 /* Now compare two sections of the file read differently. */ 5079 5080 for (i = 0; i < 0x10ac0; i++) 5081 { 5082 *((unsigned char *) RAW_ADDR (0x200000 + i)) = 0; 5083 *((unsigned char *) RAW_ADDR (0x300000 + i)) = 1; 5084 } 5085 5086 /* First partial read. */ 5087 grub_printf ("\nPartial read 1: "); 5088 5089 grub_seek (0); 5090 grub_read ((char *) RAW_ADDR (0x200000), 0x7); 5091 grub_read ((char *) RAW_ADDR (0x200007), 0x100); 5092 grub_read ((char *) RAW_ADDR (0x200107), 0x10); 5093 grub_read ((char *) RAW_ADDR (0x200117), 0x999); 5094 grub_read ((char *) RAW_ADDR (0x200ab0), 0x10); 5095 grub_read ((char *) RAW_ADDR (0x200ac0), 0x10000); 5096 5097 /* Second partial read. */ 5098 grub_printf ("\nPartial read 2: "); 5099 5100 grub_seek (0); 5101 grub_read ((char *) RAW_ADDR (0x300000), 0x10000); 5102 grub_read ((char *) RAW_ADDR (0x310000), 0x10); 5103 grub_read ((char *) RAW_ADDR (0x310010), 0x7); 5104 grub_read ((char *) RAW_ADDR (0x310017), 0x10); 5105 grub_read ((char *) RAW_ADDR (0x310027), 0x999); 5106 grub_read ((char *) RAW_ADDR (0x3109c0), 0x100); 5107 5108 grub_printf ("\nHeader1 = 0x%x, next = 0x%x, next = 0x%x, next = 0x%x\n", 5109 *((int *) RAW_ADDR (0x200000)), 5110 *((int *) RAW_ADDR (0x200004)), 5111 *((int *) RAW_ADDR (0x200008)), 5112 *((int *) RAW_ADDR (0x20000c))); 5113 5114 grub_printf ("Header2 = 0x%x, next = 0x%x, next = 0x%x, next = 0x%x\n", 5115 *((int *) RAW_ADDR (0x300000)), 5116 *((int *) RAW_ADDR (0x300004)), 5117 *((int *) RAW_ADDR (0x300008)), 5118 *((int *) RAW_ADDR (0x30000c))); 5119 5120 for (i = 0; i < 0x10ac0; i++) 5121 if (*((unsigned char *) RAW_ADDR (0x200000 + i)) 5122 != *((unsigned char *) RAW_ADDR (0x300000 + i))) 5123 break; 5124 5125 grub_printf ("Max is 0x10ac0: i=0x%x, filepos=0x%x\n", i, filepos); 5126 disk_read_hook = 0; 5127 grub_close (); 5128 return 0; 5129 } 5130 5131 static struct builtin builtin_testload = 5132 { 5133 "testload", 5134 testload_func, 5135 BUILTIN_CMDLINE, 5136 "testload FILE", 5137 "Read the entire contents of FILE in several different ways and" 5138 " compares them, to test the filesystem code. The output is somewhat" 5139 " cryptic, but if no errors are reported and the final `i=X," 5140 " filepos=Y' reading has X and Y equal, then it is definitely" 5141 " consistent, and very likely works correctly subject to a" 5142 " consistent offset error. If this test succeeds, then a good next" 5143 " step is to try loading a kernel." 5144 }; 5145 5146 5147 /* testvbe MODE */ 5148 static int 5149 testvbe_func (char *arg, int flags) 5150 { 5151 int mode_number; 5152 struct vbe_controller controller; 5153 struct vbe_mode mode; 5154 5155 if (! *arg) 5156 { 5157 errnum = ERR_BAD_ARGUMENT; 5158 return 1; 5159 } 5160 5161 if (! safe_parse_maxint (&arg, &mode_number)) 5162 return 1; 5163 5164 /* Preset `VBE2'. */ 5165 grub_memmove (controller.signature, "VBE2", 4); 5166 5167 /* Detect VBE BIOS. */ 5168 if (get_vbe_controller_info (&controller) != 0x004F) 5169 { 5170 grub_printf (" VBE BIOS is not present.\n"); 5171 return 0; 5172 } 5173 5174 if (controller.version < 0x0200) 5175 { 5176 grub_printf (" VBE version %d.%d is not supported.\n", 5177 (int) (controller.version >> 8), 5178 (int) (controller.version & 0xFF)); 5179 return 0; 5180 } 5181 5182 if (get_vbe_mode_info (mode_number, &mode) != 0x004F 5183 || (mode.mode_attributes & 0x0091) != 0x0091) 5184 { 5185 grub_printf (" Mode 0x%x is not supported.\n", mode_number); 5186 return 0; 5187 } 5188 5189 /* Now trip to the graphics mode. */ 5190 if (set_vbe_mode (mode_number | (1 << 14)) != 0x004F) 5191 { 5192 grub_printf (" Switching to Mode 0x%x failed.\n", mode_number); 5193 return 0; 5194 } 5195 5196 /* Draw something on the screen... */ 5197 { 5198 unsigned char *base_buf = (unsigned char *) mode.phys_base; 5199 int scanline = controller.version >= 0x0300 5200 ? mode.linear_bytes_per_scanline : mode.bytes_per_scanline; 5201 /* FIXME: this assumes that any depth is a modulo of 8. */ 5202 int bpp = mode.bits_per_pixel / 8; 5203 int width = mode.x_resolution; 5204 int height = mode.y_resolution; 5205 int x, y; 5206 unsigned color = 0; 5207 5208 /* Iterate drawing on the screen, until the user hits any key. */ 5209 while (checkkey () == -1) 5210 { 5211 for (y = 0; y < height; y++) 5212 { 5213 unsigned char *line_buf = base_buf + scanline * y; 5214 5215 for (x = 0; x < width; x++) 5216 { 5217 unsigned char *buf = line_buf + bpp * x; 5218 int i; 5219 5220 for (i = 0; i < bpp; i++, buf++) 5221 *buf = (color >> (i * 8)) & 0xff; 5222 } 5223 5224 color++; 5225 } 5226 } 5227 5228 /* Discard the input. */ 5229 getkey (); 5230 } 5231 5232 /* Back to the default text mode. */ 5233 if (set_vbe_mode (0x03) != 0x004F) 5234 { 5235 /* Why?! */ 5236 grub_reboot (); 5237 } 5238 5239 return 0; 5240 } 5241 5242 static struct builtin builtin_testvbe = 5243 { 5244 "testvbe", 5245 testvbe_func, 5246 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 5247 "testvbe MODE", 5248 "Test the VBE mode MODE. Hit any key to return." 5249 }; 5250 5251 5252 #ifdef SUPPORT_NETBOOT 5253 /* tftpserver */ 5254 static int 5255 tftpserver_func (char *arg, int flags) 5256 { 5257 if (! *arg || ! ifconfig (0, 0, 0, arg)) 5258 { 5259 errnum = ERR_BAD_ARGUMENT; 5260 return 1; 5261 } 5262 5263 print_network_configuration (); 5264 return 0; 5265 } 5266 5267 static struct builtin builtin_tftpserver = 5268 { 5269 "tftpserver", 5270 tftpserver_func, 5271 BUILTIN_CMDLINE | BUILTIN_MENU | BUILTIN_HELP_LIST, 5272 "tftpserver IPADDR", 5273 "Override the TFTP server address." 5274 }; 5275 #endif /* SUPPORT_NETBOOT */ 5276 5277 5278 /* timeout */ 5279 static int 5280 timeout_func (char *arg, int flags) 5281 { 5282 if (! safe_parse_maxint (&arg, &grub_timeout)) 5283 return 1; 5284 5285 return 0; 5286 } 5287 5288 static struct builtin builtin_timeout = 5289 { 5290 "timeout", 5291 timeout_func, 5292 BUILTIN_MENU, 5293 #if 0 5294 "timeout SEC", 5295 "Set a timeout, in SEC seconds, before automatically booting the" 5296 " default entry (normally the first entry defined)." 5297 #endif 5298 }; 5299 5300 5301 /* title */ 5302 static int 5303 title_func (char *arg, int flags) 5304 { 5305 /* This function is not actually used at least currently. */ 5306 return 0; 5307 } 5308 5309 static struct builtin builtin_title = 5310 { 5311 "title", 5312 title_func, 5313 BUILTIN_TITLE, 5314 #if 0 5315 "title [NAME ...]", 5316 "Start a new boot entry, and set its name to the contents of the" 5317 " rest of the line, starting with the first non-space character." 5318 #endif 5319 }; 5320 5321 5322 /* unhide */ 5323 static int 5324 unhide_func (char *arg, int flags) 5325 { 5326 if (! set_device (arg)) 5327 return 1; 5328 5329 if (! set_partition_hidden_flag (0)) 5330 return 1; 5331 5332 return 0; 5333 } 5334 5335 static struct builtin builtin_unhide = 5336 { 5337 "unhide", 5338 unhide_func, 5339 BUILTIN_CMDLINE | BUILTIN_MENU | BUILTIN_HELP_LIST, 5340 "unhide PARTITION", 5341 "Unhide PARTITION by clearing the \"hidden\" bit in its" 5342 " partition type code." 5343 }; 5344 5345 5346 /* uppermem */ 5347 static int 5348 uppermem_func (char *arg, int flags) 5349 { 5350 if (! safe_parse_maxint (&arg, (int *) &mbi.mem_upper)) 5351 return 1; 5352 5353 mbi.flags &= ~MB_INFO_MEM_MAP; 5354 return 0; 5355 } 5356 5357 static struct builtin builtin_uppermem = 5358 { 5359 "uppermem", 5360 uppermem_func, 5361 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 5362 "uppermem KBYTES", 5363 "Force GRUB to assume that only KBYTES kilobytes of upper memory are" 5364 " installed. Any system address range maps are discarded." 5365 }; 5366 5367 5368 /* vbeprobe */ 5369 static int 5370 vbeprobe_func (char *arg, int flags) 5371 { 5372 struct vbe_controller controller; 5373 unsigned short *mode_list; 5374 int mode_number = -1; 5375 5376 auto unsigned long vbe_far_ptr_to_linear (unsigned long); 5377 5378 unsigned long vbe_far_ptr_to_linear (unsigned long ptr) 5379 { 5380 unsigned short seg = (ptr >> 16); 5381 unsigned short off = (ptr & 0xFFFF); 5382 5383 return (seg << 4) + off; 5384 } 5385 5386 if (*arg) 5387 { 5388 if (! safe_parse_maxint (&arg, &mode_number)) 5389 return 1; 5390 } 5391 5392 /* Set the signature to `VBE2', to obtain VBE 3.0 information. */ 5393 grub_memmove (controller.signature, "VBE2", 4); 5394 5395 if (get_vbe_controller_info (&controller) != 0x004F) 5396 { 5397 grub_printf (" VBE BIOS is not present.\n"); 5398 return 0; 5399 } 5400 5401 /* Check the version. */ 5402 if (controller.version < 0x0200) 5403 { 5404 grub_printf (" VBE version %d.%d is not supported.\n", 5405 (int) (controller.version >> 8), 5406 (int) (controller.version & 0xFF)); 5407 return 0; 5408 } 5409 5410 /* Print some information. */ 5411 grub_printf (" VBE version %d.%d\n", 5412 (int) (controller.version >> 8), 5413 (int) (controller.version & 0xFF)); 5414 5415 /* Iterate probing modes. */ 5416 for (mode_list 5417 = (unsigned short *) vbe_far_ptr_to_linear (controller.video_mode); 5418 *mode_list != 0xFFFF; 5419 mode_list++) 5420 { 5421 struct vbe_mode mode; 5422 5423 if (get_vbe_mode_info (*mode_list, &mode) != 0x004F) 5424 continue; 5425 5426 /* Skip this, if this is not supported or linear frame buffer 5427 mode is not support. */ 5428 if ((mode.mode_attributes & 0x0081) != 0x0081) 5429 continue; 5430 5431 if (mode_number == -1 || mode_number == *mode_list) 5432 { 5433 char *model; 5434 switch (mode.memory_model) 5435 { 5436 case 0x00: model = "Text"; break; 5437 case 0x01: model = "CGA graphics"; break; 5438 case 0x02: model = "Hercules graphics"; break; 5439 case 0x03: model = "Planar"; break; 5440 case 0x04: model = "Packed pixel"; break; 5441 case 0x05: model = "Non-chain 4, 256 color"; break; 5442 case 0x06: model = "Direct Color"; break; 5443 case 0x07: model = "YUV"; break; 5444 default: model = "Unknown"; break; 5445 } 5446 5447 grub_printf (" 0x%x: %s, %ux%ux%u\n", 5448 (unsigned) *mode_list, 5449 model, 5450 (unsigned) mode.x_resolution, 5451 (unsigned) mode.y_resolution, 5452 (unsigned) mode.bits_per_pixel); 5453 5454 if (mode_number != -1) 5455 break; 5456 } 5457 } 5458 5459 if (mode_number != -1 && mode_number != *mode_list) 5460 grub_printf (" Mode 0x%x is not found or supported.\n", mode_number); 5461 5462 return 0; 5463 } 5464 5465 static struct builtin builtin_vbeprobe = 5466 { 5467 "vbeprobe", 5468 vbeprobe_func, 5469 BUILTIN_CMDLINE | BUILTIN_HELP_LIST, 5470 "vbeprobe [MODE]", 5471 "Probe VBE information. If the mode number MODE is specified, show only" 5472 " the information about only the mode." 5473 }; 5474 5475 static int 5476 variable_func(char *arg, int flags) 5477 { 5478 char name[EV_NAMELEN]; 5479 char *val; 5480 int err; 5481 5482 if (*arg == '\0') { 5483 dump_variables(); 5484 return (0); 5485 } 5486 5487 if ((val = grub_strchr(arg, ' ')) != NULL) { 5488 if (val - arg >= sizeof (name)) { 5489 errnum = ERR_WONT_FIT; 5490 return (1); 5491 } 5492 (void) grub_memcpy(name, arg, (val - arg)); 5493 name[val - arg] = '\0'; 5494 val = skip_to(0, arg); 5495 } else { 5496 if (grub_strlen(arg) >= sizeof (name)) { 5497 errnum = ERR_WONT_FIT; 5498 return (1); 5499 } 5500 (void) grub_strcpy(name, arg); 5501 } 5502 5503 if ((err = set_variable(name, val)) != 0) { 5504 errnum = err; 5505 return (1); 5506 } 5507 5508 return (0); 5509 } 5510 5511 static struct builtin builtin_variable = 5512 { 5513 "variable", 5514 variable_func, 5515 BUILTIN_CMDLINE | BUILTIN_MENU | BUILTIN_SCRIPT | BUILTIN_HELP_LIST, 5516 "variable NAME [VALUE]", 5517 "Set the variable NAME to VALUE, or to the empty string if no value is" 5518 " given. NAME must contain no spaces. There is no quoting mechanism" 5519 " and nested variable references are not allowed. Variable values may" 5520 " be substituted into the kernel$ and module$ commands using ${NAME}." 5521 }; 5522 5523 5524 /* The table of builtin commands. Sorted in dictionary order. */ 5525 struct builtin *builtin_table[] = 5526 { 5527 #ifdef SUPPORT_GRAPHICS 5528 &builtin_background, 5529 #endif 5530 &builtin_blocklist, 5531 &builtin_boot, 5532 &builtin_bootfs, 5533 #ifdef SUPPORT_NETBOOT 5534 &builtin_bootp, 5535 #endif /* SUPPORT_NETBOOT */ 5536 &builtin_cat, 5537 &builtin_chainloader, 5538 &builtin_clear, 5539 &builtin_cmp, 5540 &builtin_color, 5541 &builtin_configfile, 5542 &builtin_debug, 5543 &builtin_default, 5544 #ifdef GRUB_UTIL 5545 &builtin_device, 5546 #endif /* GRUB_UTIL */ 5547 #ifdef SUPPORT_NETBOOT 5548 &builtin_dhcp, 5549 #endif /* SUPPORT_NETBOOT */ 5550 &builtin_displayapm, 5551 &builtin_displaymem, 5552 #ifdef GRUB_UTIL 5553 &builtin_dump, 5554 #endif /* GRUB_UTIL */ 5555 &builtin_embed, 5556 &builtin_fallback, 5557 &builtin_find, 5558 &builtin_findroot, 5559 #ifdef SUPPORT_GRAPHICS 5560 &builtin_foreground, 5561 #endif 5562 &builtin_fstest, 5563 &builtin_geometry, 5564 &builtin_halt, 5565 &builtin_help, 5566 &builtin_hiddenmenu, 5567 &builtin_hide, 5568 #ifdef SUPPORT_NETBOOT 5569 &builtin_ifconfig, 5570 #endif /* SUPPORT_NETBOOT */ 5571 &builtin_impsprobe, 5572 &builtin_initrd, 5573 &builtin_install, 5574 &builtin_ioprobe, 5575 &builtin_kernel, 5576 &builtin_kernel_dollar, 5577 &builtin_lock, 5578 &builtin_makeactive, 5579 &builtin_map, 5580 #ifdef USE_MD5_PASSWORDS 5581 &builtin_md5crypt, 5582 #endif /* USE_MD5_PASSWORDS */ 5583 &builtin_min_mem64, 5584 &builtin_module, 5585 &builtin_module_dollar, 5586 &builtin_modulenounzip, 5587 &builtin_pager, 5588 &builtin_partnew, 5589 &builtin_parttype, 5590 &builtin_password, 5591 &builtin_pause, 5592 #if defined(RPC_DEBUG) && defined(SUPPORT_NETBOOT) 5593 &builtin_portmap, 5594 #endif /* RPC_DEBUG && SUPPORT_NETBOOT */ 5595 #ifdef GRUB_UTIL 5596 &builtin_quit, 5597 #endif /* GRUB_UTIL */ 5598 #ifdef SUPPORT_NETBOOT 5599 &builtin_rarp, 5600 #endif /* SUPPORT_NETBOOT */ 5601 &builtin_read, 5602 &builtin_reboot, 5603 &builtin_root, 5604 &builtin_rootnoverify, 5605 &builtin_savedefault, 5606 #ifdef SUPPORT_SERIAL 5607 &builtin_serial, 5608 #endif /* SUPPORT_SERIAL */ 5609 &builtin_setkey, 5610 &builtin_setup, 5611 #ifdef SUPPORT_GRAPHICS 5612 &builtin_splashimage, 5613 #endif /* SUPPORT_GRAPHICS */ 5614 #if defined(SUPPORT_SERIAL) || defined(SUPPORT_HERCULES) || defined(SUPPORT_GRAPHICS) 5615 &builtin_terminal, 5616 #endif /* SUPPORT_SERIAL || SUPPORT_HERCULES || SUPPORT_GRAPHICS */ 5617 #ifdef SUPPORT_SERIAL 5618 &builtin_terminfo, 5619 #endif /* SUPPORT_SERIAL */ 5620 &builtin_testload, 5621 &builtin_testvbe, 5622 #ifdef SUPPORT_NETBOOT 5623 &builtin_tftpserver, 5624 #endif /* SUPPORT_NETBOOT */ 5625 &builtin_timeout, 5626 &builtin_title, 5627 &builtin_unhide, 5628 &builtin_uppermem, 5629 &builtin_variable, 5630 &builtin_vbeprobe, 5631 &builtin_verbose, 5632 0 5633 }; 5634