grub-core/commands/efi/lsefi.c

   1 /*
   2  *  GRUB  --  GRand Unified Bootloader
   3  *  Copyright (C) 2012  Free Software Foundation, Inc.
   4  *
   5  *  GRUB is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  GRUB is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18 #include <grub/types.h>
  19 #include <grub/mm.h>
  20 #include <grub/misc.h>
  21 #include <grub/efi/api.h>
  22 #include <grub/efi/edid.h>
  23 #include <grub/efi/pci.h>
  24 #include <grub/efi/efi.h>
  25 #include <grub/efi/uga_draw.h>
  26 #include <grub/efi/graphics_output.h>
  27 #include <grub/efi/console_control.h>
  28 #include <grub/command.h>
  29
  30 GRUB_MOD_LICENSE ("GPLv3+");
  31
  32 struct known_protocol
  33 {
  34   grub_efi_guid_t guid;
  35   const char *name;
  36 } known_protocols[] =
  37   {
  38     { GRUB_EFI_DISK_IO_GUID, "disk" },
  39     { GRUB_EFI_BLOCK_IO_GUID, "block" },
  40     { GRUB_EFI_SERIAL_IO_GUID, "serial" },
  41     { GRUB_EFI_SIMPLE_NETWORK_GUID, "network" },
  42     { GRUB_EFI_PXE_GUID, "pxe" },
  43     { GRUB_EFI_DEVICE_PATH_GUID, "device path" },
  44     { GRUB_EFI_PCI_IO_GUID, "PCI" },
  45     { GRUB_EFI_PCI_ROOT_IO_GUID, "PCI root" },
  46     { GRUB_EFI_EDID_ACTIVE_GUID, "active EDID" },
  47     { GRUB_EFI_EDID_DISCOVERED_GUID, "discovered EDID" },
  48     { GRUB_EFI_EDID_OVERRIDE_GUID, "override EDID" },
  49     { GRUB_EFI_GOP_GUID, "GOP" },
  50     { GRUB_EFI_UGA_DRAW_GUID, "UGA draw" },
  51     { GRUB_EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL_GUID, "simple text output" },
  52     { GRUB_EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID, "simple text input" },
  53     { GRUB_EFI_SIMPLE_POINTER_PROTOCOL_GUID, "simple pointer" },
  54     { GRUB_EFI_CONSOLE_CONTROL_GUID, "console control" },
  55     { GRUB_EFI_ABSOLUTE_POINTER_PROTOCOL_GUID, "absolute pointer" },
  56     { GRUB_EFI_DRIVER_BINDING_PROTOCOL_GUID, "EFI driver binding" },
  57     { GRUB_EFI_LOAD_FILE_PROTOCOL_GUID, "load file" },
  58     { GRUB_EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID, "simple FS" },
  59     { GRUB_EFI_TAPE_IO_PROTOCOL_GUID, "tape I/O" },
  60     { GRUB_EFI_UNICODE_COLLATION_PROTOCOL_GUID, "unicode collation" },
  61     { GRUB_EFI_SCSI_IO_PROTOCOL_GUID, "SCSI I/O" },
  62     { GRUB_EFI_USB2_HC_PROTOCOL_GUID, "USB host" },
  63     { GRUB_EFI_DEBUG_SUPPORT_PROTOCOL_GUID, "debug support" },
  64     { GRUB_EFI_DEBUGPORT_PROTOCOL_GUID, "debug port" },
  65     { GRUB_EFI_DECOMPRESS_PROTOCOL_GUID, "decompress" },
  66     { GRUB_EFI_LOADED_IMAGE_PROTOCOL_GUID, "loaded image" },
  67     { GRUB_EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID, "device path to text" },
  68     { GRUB_EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID, "device path utilities" },
  69     { GRUB_EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL_GUID, "device path from text" },
  70     { GRUB_EFI_HII_CONFIG_ROUTING_PROTOCOL_GUID, "HII config routing" },
  71     { GRUB_EFI_HII_DATABASE_PROTOCOL_GUID, "HII database" },
  72     { GRUB_EFI_HII_STRING_PROTOCOL_GUID, "HII string" },
  73     { GRUB_EFI_HII_IMAGE_PROTOCOL_GUID, "HII image" },
  74     { GRUB_EFI_HII_FONT_PROTOCOL_GUID, "HII font" },
  75     { GRUB_EFI_COMPONENT_NAME2_PROTOCOL_GUID, "component name 2" },
  76     { GRUB_EFI_HII_CONFIGURATION_ACCESS_PROTOCOL_GUID,
  77       "HII configuration access" },
  78     { GRUB_EFI_USB_IO_PROTOCOL_GUID, "USB I/O" },
  79   };
  80
  81 static grub_err_t
  82 grub_cmd_lsefi (grub_command_t cmd __attribute__ ((unused)),
  83                 int argc __attribute__ ((unused)),
  84                 char **args __attribute__ ((unused)))
  85 {
  86   grub_efi_handle_t *handles;
  87   grub_efi_uintn_t num_handles;
  88   unsigned i, j, k;
  89
  90   handles = grub_efi_locate_handle (GRUB_EFI_ALL_HANDLES,
  91                                     NULL, NULL, &num_handles);
  92
  93   for (i = 0; i < num_handles; i++)
  94     {
  95       grub_efi_handle_t handle = handles[i];
  96       grub_efi_status_t status;
  97       grub_efi_uintn_t num_protocols;
  98       grub_efi_packed_guid_t **protocols;
  99       grub_efi_device_path_t *dp;
 100
 101       grub_printf ("Handle %p\n", handle);
 102
 103       dp = grub_efi_get_device_path (handle);
 104       if (dp)
 105         {
 106           grub_printf ("  ");
 107           grub_efi_print_device_path (dp);
 108         }
 109
 110       status = efi_call_3 (grub_efi_system_table->boot_services->protocols_per_handle,
 111                            handle, &protocols, &num_protocols);
 112       if (status != GRUB_EFI_SUCCESS)
 113         grub_printf ("Unable to retrieve protocols\n");
 114       for (j = 0; j < num_protocols; j++)
 115         {
 116           for (k = 0; k < ARRAY_SIZE (known_protocols); k++)
 117             if (grub_memcmp (protocols[j], &known_protocols[k].guid,
 118                              sizeof (known_protocols[k].guid)) == 0)
 119                 break;
 120           if (k < ARRAY_SIZE (known_protocols))
 121             grub_printf ("  %s\n", known_protocols[k].name);
 122           else
 123             grub_printf ("  %08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x\n",
 124                          protocols[j]->data1,
 125                          protocols[j]->data2,
 126                          protocols[j]->data3,
 127                          (unsigned) protocols[j]->data4[0],
 128                          (unsigned) protocols[j]->data4[1],
 129                          (unsigned) protocols[j]->data4[2],
 130                          (unsigned) protocols[j]->data4[3],
 131                          (unsigned) protocols[j]->data4[4],
 132                          (unsigned) protocols[j]->data4[5],
 133                          (unsigned) protocols[j]->data4[6],
 134                          (unsigned) protocols[j]->data4[7]);
 135         }
 136
 137     }
 138
 139   return 0;
 140 }
 141
 142 static grub_command_t cmd;
 143
 144 GRUB_MOD_INIT(lsefi)
 145 {
 146   cmd = grub_register_command ("lsefi", grub_cmd_lsefi,
 147                                NULL, "Display EFI handles.");
 148 }
 149
 150 GRUB_MOD_FINI(lsefi)
 151 {
 152   grub_unregister_command (cmd);
 153 }