Пример #1
0
/* Name the devices.  */
static void
name_devices (struct grub_efidisk_data *devices)
{
  struct grub_efidisk_data *d;

  /* First, identify devices by media device paths.  */
  for (d = devices; d; d = d->next)
    {
      grub_efi_device_path_t *dp;

      dp = d->last_device_path;
      if (! dp)
	continue;

      if (GRUB_EFI_DEVICE_PATH_TYPE (dp) == GRUB_EFI_MEDIA_DEVICE_PATH_TYPE)
	{
	  int is_hard_drive = 0;

	  switch (GRUB_EFI_DEVICE_PATH_SUBTYPE (dp))
	    {
	    case GRUB_EFI_HARD_DRIVE_DEVICE_PATH_SUBTYPE:
	      is_hard_drive = 1;
	      /* Fall through by intention.  */
	    case GRUB_EFI_CDROM_DEVICE_PATH_SUBTYPE:
	      {
		struct grub_efidisk_data *parent, *parent2;

		parent = find_parent_device (devices, d);
		if (!parent)
		  {
#ifdef DEBUG_NAMES
		    grub_printf ("skipping orphaned partition: ");
		    grub_efi_print_device_path (d->device_path);
#endif
		    break;
		  }
		parent2 = find_parent_device (devices, parent);
		if (parent2)
		  {
#ifdef DEBUG_NAMES
		    grub_printf ("skipping subpartition: ");
		    grub_efi_print_device_path (d->device_path);
#endif
		    /* Mark itself as used.  */
		    d->last_device_path = 0;
		    break;
		  }
		if (!parent->last_device_path)
		  {
		    d->last_device_path = 0;
		    break;
		  }
		if (is_hard_drive)
		  {
#ifdef DEBUG_NAMES
		    grub_printf ("adding a hard drive by a partition: ");
		    grub_efi_print_device_path (parent->device_path);
#endif
		    add_device (&hd_devices, parent);
		  }
		else
		  {
#ifdef DEBUG_NAMES
		    grub_printf ("adding a cdrom by a partition: ");
		    grub_efi_print_device_path (parent->device_path);
#endif
		    add_device (&cd_devices, parent);
		  }

		/* Mark the parent as used.  */
		parent->last_device_path = 0;
	      }
	      /* Mark itself as used.  */
	      d->last_device_path = 0;
	      break;

	    default:
#ifdef DEBUG_NAMES
	      grub_printf ("skipping other type: ");
	      grub_efi_print_device_path (d->device_path);
#endif
	      /* For now, ignore the others.  */
	      break;
	    }
	}
      else
	{
#ifdef DEBUG_NAMES
	  grub_printf ("skipping non-media: ");
	  grub_efi_print_device_path (d->device_path);
#endif
	}
    }

  /* Let's see what can be added more.  */
  for (d = devices; d; d = d->next)
    {
      grub_efi_device_path_t *dp;
      grub_efi_block_io_media_t *m;
      int is_floppy = 0;

      dp = d->last_device_path;
      if (! dp)
	continue;

      m = d->block_io->media;
      if (GRUB_EFI_DEVICE_PATH_TYPE (dp) == GRUB_EFI_ACPI_DEVICE_PATH_TYPE
	  && GRUB_EFI_DEVICE_PATH_SUBTYPE (dp)
	  == GRUB_EFI_ACPI_DEVICE_PATH_SUBTYPE)
	{
	  grub_efi_acpi_device_path_t *acpi
	    = (grub_efi_acpi_device_path_t *) dp;
	  /* Floppy EISA ID.  */ 
	  if (acpi->hid == 0x60441d0 || acpi->hid == 0x70041d0
	      || acpi->hid == 0x70141d1)
	    is_floppy = 1;
	}
      if (is_floppy)
	{
#ifdef DEBUG_NAMES
	  grub_printf ("adding a floppy: ");
	  grub_efi_print_device_path (d->device_path);
#endif
	  add_device (&fd_devices, d);
	}
      else if (m->read_only && m->block_size > GRUB_DISK_SECTOR_SIZE)
	{
	  /* This check is too heuristic, but assume that this is a
	     CDROM drive.  */
#ifdef DEBUG_NAMES
	  grub_printf ("adding a cdrom by guessing: ");
	  grub_efi_print_device_path (d->device_path);
#endif
	  add_device (&cd_devices, d);
	}
      else
	{
	  /* The default is a hard drive.  */
#ifdef DEBUG_NAMES
	  grub_printf ("adding a hard drive by guessing: ");
	  grub_efi_print_device_path (d->device_path);
#endif
	  add_device (&hd_devices, d);
	}
    }
}
Пример #2
0
/* Name the devices.  */
static void
name_devices (struct grub_efidisk_data *devices)
{
  struct grub_efidisk_data *d;
  
  /* First, identify devices by media device paths.  */
  for (d = devices; d; d = d->next)
    {
      grub_efi_device_path_t *dp;

      dp = d->last_device_path;
      if (! dp)
	continue;
      
      if (GRUB_EFI_DEVICE_PATH_TYPE (dp) == GRUB_EFI_MEDIA_DEVICE_PATH_TYPE)
	{
	  int is_hard_drive = 0;
	  
	  switch (GRUB_EFI_DEVICE_PATH_SUBTYPE (dp))
	    {
	    case GRUB_EFI_HARD_DRIVE_DEVICE_PATH_SUBTYPE:
	      is_hard_drive = 1;
	      /* Fall through by intention.  */
	    case GRUB_EFI_CDROM_DEVICE_PATH_SUBTYPE:
	      {
		struct grub_efidisk_data *parent;

		parent = find_parent_device (devices, d);
		if (parent)
		  {
		    if (is_hard_drive)
		      {
#if 0
			grub_printf ("adding a hard drive by a partition: ");
			grub_print_device_path (parent->device_path);
#endif
			add_device (&hd_devices, parent);
		      }
		    else
		      {
#if 0
			grub_printf ("adding a cdrom by a partition: ");
			grub_print_device_path (parent->device_path);
#endif
			add_device (&cd_devices, parent);
		      }
		    
		    /* Mark the parent as used.  */
		    parent->last_device_path = 0;
		  }
	      }
	      /* Mark itself as used.  */
	      d->last_device_path = 0;
	      break;

	    default:
	      /* For now, ignore the others.  */
	      break;
	    }
	}
    }

  /* Let's see what can be added more.  */
  for (d = devices; d; d = d->next)
    {
      grub_efi_device_path_t *dp;
      grub_efi_block_io_media_t *m;
      
      dp = d->last_device_path;
      if (! dp)
	continue;

      m = d->block_io->media;
      if (m->logical_partition)
	{
	  /* Only one partition in a non-media device. Assume that this
	     is a floppy drive.  */
#if 0
	  grub_printf ("adding a floppy by guessing: ");
	  grub_print_device_path (d->device_path);
#endif
	  add_device (&fd_devices, d);
	}
      else if (m->read_only && m->block_size > GRUB_DISK_SECTOR_SIZE)
	{
	  /* This check is too heuristic, but assume that this is a
	     CDROM drive.  */
#if 0
	  grub_printf ("adding a cdrom by guessing: ");
	  grub_print_device_path (d->device_path);
#endif
	  add_device (&cd_devices, d);
	}
      else
	{
	  /* The default is a hard drive.  */
#if 0
	  grub_printf ("adding a hard drive by guessing: ");
	  grub_print_device_path (d->device_path);
#endif
	  add_device (&hd_devices, d);
	}
    }
}