loader/efi/appleloader.c

   1 /* appleloader.c - apple legacy boot loader.  */
   2 /*
   3  *  GRUB  --  GRand Unified Bootloader
   4  *  Copyright (C) 2008  Free Software Foundation, Inc.
   5  *
   6  *  GRUB 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 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  GRUB 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 GRUB.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <grub/loader.h>
  21 #include <grub/err.h>
  22 #include <grub/mm.h>
  23 #include <grub/dl.h>
  24 #include <grub/misc.h>
  25 #include <grub/efi/api.h>
  26 #include <grub/efi/efi.h>
  27 #include <grub/command.h>
  28
  29 static grub_dl_t my_mod;
  30
  31 static grub_efi_handle_t image_handle;
  32 static grub_efi_char16_t *cmdline;
  33
  34 static grub_err_t
  35 grub_appleloader_unload (void)
  36 {
  37   grub_efi_boot_services_t *b;
  38
  39   b = grub_efi_system_table->boot_services;
  40   efi_call_1 (b->unload_image, image_handle);
  41
  42   grub_free (cmdline);
  43   cmdline = 0;
  44
  45   grub_dl_unref (my_mod);
  46   return GRUB_ERR_NONE;
  47 }
  48
  49 static grub_err_t
  50 grub_appleloader_boot (void)
  51 {
  52   grub_efi_boot_services_t *b;
  53
  54   b = grub_efi_system_table->boot_services;
  55   efi_call_3 (b->start_image, image_handle, 0, 0);
  56
  57   grub_appleloader_unload ();
  58
  59   return grub_errno;
  60 }
  61
  62 /* early 2006 Core Duo / Core Solo models  */
  63 static grub_uint8_t devpath_1[] =
  64 {
  65   0x01, 0x03, 0x18, 0x00, 0x0B, 0x00, 0x00, 0x00,
  66   0x00, 0x00, 0xE0, 0xFF, 0x00, 0x00, 0x00, 0x00,
  67   0xFF, 0xFF, 0xF9, 0xFF, 0x00, 0x00, 0x00, 0x00,
  68   0x04, 0x06, 0x14, 0x00, 0xEB, 0x85, 0x05, 0x2B,
  69   0xB8, 0xD8, 0xA9, 0x49, 0x8B, 0x8C, 0xE2, 0x1B,
  70   0x01, 0xAE, 0xF2, 0xB7, 0x7F, 0xFF, 0x04, 0x00,
  71 };
  72
  73 /* mid-2006 Mac Pro (and probably other Core 2 models)  */
  74 static grub_uint8_t devpath_2[] =
  75 {
  76   0x01, 0x03, 0x18, 0x00, 0x0B, 0x00, 0x00, 0x00,
  77   0x00, 0x00, 0xE0, 0xFF, 0x00, 0x00, 0x00, 0x00,
  78   0xFF, 0xFF, 0xF7, 0xFF, 0x00, 0x00, 0x00, 0x00,
  79   0x04, 0x06, 0x14, 0x00, 0xEB, 0x85, 0x05, 0x2B,
  80   0xB8, 0xD8, 0xA9, 0x49, 0x8B, 0x8C, 0xE2, 0x1B,
  81   0x01, 0xAE, 0xF2, 0xB7, 0x7F, 0xFF, 0x04, 0x00,
  82 };
  83
  84 /* mid-2007 MBP ("Santa Rosa" based models)  */
  85 static grub_uint8_t devpath_3[] =
  86 {
  87   0x01, 0x03, 0x18, 0x00, 0x0B, 0x00, 0x00, 0x00,
  88   0x00, 0x00, 0xE0, 0xFF, 0x00, 0x00, 0x00, 0x00,
  89   0xFF, 0xFF, 0xF8, 0xFF, 0x00, 0x00, 0x00, 0x00,
  90   0x04, 0x06, 0x14, 0x00, 0xEB, 0x85, 0x05, 0x2B,
  91   0xB8, 0xD8, 0xA9, 0x49, 0x8B, 0x8C, 0xE2, 0x1B,
  92   0x01, 0xAE, 0xF2, 0xB7, 0x7F, 0xFF, 0x04, 0x00,
  93 };
  94
  95 /* early-2008 MBA  */
  96 static grub_uint8_t devpath_4[] =
  97 {
  98   0x01, 0x03, 0x18, 0x00, 0x0B, 0x00, 0x00, 0x00,
  99   0x00, 0x00, 0xC0, 0xFF, 0x00, 0x00, 0x00, 0x00,
 100   0xFF, 0xFF, 0xF8, 0xFF, 0x00, 0x00, 0x00, 0x00,
 101   0x04, 0x06, 0x14, 0x00, 0xEB, 0x85, 0x05, 0x2B,
 102   0xB8, 0xD8, 0xA9, 0x49, 0x8B, 0x8C, 0xE2, 0x1B,
 103   0x01, 0xAE, 0xF2, 0xB7, 0x7F, 0xFF, 0x04, 0x00,
 104 };
 105
 106 /* late-2008 MB/MBP (NVidia chipset)  */
 107 static grub_uint8_t devpath_5[] = {
 108     0x01, 0x03, 0x18, 0x00, 0x0B, 0x00, 0x00, 0x00,
 109     0x00, 0x40, 0xCB, 0xFF, 0x00, 0x00, 0x00, 0x00,
 110     0xFF, 0xBF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00,
 111     0x04, 0x06, 0x14, 0x00, 0xEB, 0x85, 0x05, 0x2B,
 112     0xB8, 0xD8, 0xA9, 0x49, 0x8B, 0x8C, 0xE2, 0x1B,
 113     0x01, 0xAE, 0xF2, 0xB7, 0x7F, 0xFF, 0x04, 0x00,
 114 };
 115
 116 struct devdata
 117 {
 118   char *model;
 119   grub_efi_device_path_t *devpath;
 120 };
 121
 122 struct devdata devs[] =
 123 {
 124   {"Core Duo/Solo", (grub_efi_device_path_t *) devpath_1},
 125   {"Mac Pro", (grub_efi_device_path_t *) devpath_2},
 126   {"MBP", (grub_efi_device_path_t *) devpath_3},
 127   {"MBA", (grub_efi_device_path_t *) devpath_4},
 128   {"MB NV", (grub_efi_device_path_t *) devpath_5},
 129   {NULL, NULL},
 130 };
 131
 132 static grub_err_t
 133 grub_cmd_appleloader (grub_command_t cmd __attribute__ ((unused)),
 134                       int argc, char *argv[])
 135 {
 136   grub_efi_boot_services_t *b;
 137   grub_efi_loaded_image_t *loaded_image;
 138   struct devdata *pdev;
 139
 140   grub_dl_ref (my_mod);
 141
 142   /* Initialize some global variables.  */
 143   image_handle = 0;
 144
 145   b = grub_efi_system_table->boot_services;
 146
 147   for (pdev = devs ; pdev->devpath ; pdev++)
 148     if (efi_call_6 (b->load_image, 0, grub_efi_image_handle, pdev->devpath,
 149                     NULL, 0, &image_handle) == GRUB_EFI_SUCCESS)
 150       break;
 151
 152   if (! pdev->devpath)
 153     {
 154       grub_error (GRUB_ERR_BAD_OS, "can't find model");
 155       goto fail;
 156     }
 157
 158   grub_printf ("Model : %s\n", pdev->model);
 159
 160   loaded_image = grub_efi_get_loaded_image (image_handle);
 161   if (! loaded_image)
 162     {
 163       grub_error (GRUB_ERR_BAD_OS, "no loaded image available");
 164       goto fail;
 165     }
 166
 167   if (argc > 0)
 168     {
 169       int i, len;
 170       grub_efi_char16_t *p16;
 171
 172       for (i = 0, len = 0; i < argc; i++)
 173         len += grub_strlen (argv[i]) + 1;
 174
 175       len *= sizeof (grub_efi_char16_t);
 176       cmdline = p16 = grub_malloc (len);
 177       if (! cmdline)
 178         goto fail;
 179
 180       for (i = 0; i < argc; i++)
 181         {
 182           char *p8;
 183
 184           p8 = argv[i];
 185           while (*p8)
 186             *(p16++) = *(p8++);
 187
 188           *(p16++) = ' ';
 189         }
 190       *(--p16) = 0;
 191
 192       loaded_image->load_options = cmdline;
 193       loaded_image->load_options_size = len;
 194     }
 195
 196   grub_loader_set (grub_appleloader_boot, grub_appleloader_unload, 0);
 197
 198   return 0;
 199
 200  fail:
 201
 202   grub_dl_unref (my_mod);
 203   return grub_errno;
 204 }
 205
 206 static grub_command_t cmd;
 207
 208 GRUB_MOD_INIT(appleloader)
 209 {
 210   cmd = grub_register_command ("appleloader", grub_cmd_appleloader,
 211                                "appleloader [OPTS]", "Boot legacy system.");
 212   my_mod = mod;
 213 }
 214
 215 GRUB_MOD_FINI(appleloader)
 216 {
 217   grub_unregister_command (cmd);
 218 }