diff options
Diffstat (limited to 'grub-core/commands/efi/lsefisystab.c')
| -rw-r--r-- | grub-core/commands/efi/lsefisystab.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/grub-core/commands/efi/lsefisystab.c b/grub-core/commands/efi/lsefisystab.c new file mode 100644 index 0000000..456198e --- /dev/null +++ b/grub-core/commands/efi/lsefisystab.c @@ -0,0 +1,125 @@ +/* lsefisystab.c - Display EFI systab. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ +#include <grub/types.h> +#include <grub/mm.h> +#include <grub/dl.h> +#include <grub/misc.h> +#include <grub/normal.h> +#include <grub/charset.h> +#include <grub/efi/api.h> +#include <grub/efi/efi.h> + +GRUB_MOD_LICENSE ("GPLv3+"); + +struct guid_mapping +{ + grub_efi_guid_t guid; + const char *name; +}; + +static const struct guid_mapping guid_mappings[] = + { + { GRUB_EFI_ACPI_20_TABLE_GUID, "ACPI-2.0"}, + { GRUB_EFI_ACPI_TABLE_GUID, "ACPI-1.0"}, + { GRUB_EFI_CRC32_GUIDED_SECTION_EXTRACTION_GUID, + "CRC32 GUIDED SECTION EXTRACTION"}, + { GRUB_EFI_DEBUG_IMAGE_INFO_TABLE_GUID, "DEBUG IMAGE INFO"}, + { GRUB_EFI_DEVICE_TREE_GUID, "DEVICE TREE"}, + { GRUB_EFI_DXE_SERVICES_TABLE_GUID, "DXE SERVICES"}, + { GRUB_EFI_HCDP_TABLE_GUID, "HCDP"}, + { GRUB_EFI_HOB_LIST_GUID, "HOB LIST"}, + { GRUB_EFI_LZMA_CUSTOM_DECOMPRESS_GUID, "LZMA CUSTOM DECOMPRESS"}, + { GRUB_EFI_MEMORY_TYPE_INFORMATION_GUID, "MEMORY TYPE INFO"}, + { GRUB_EFI_MPS_TABLE_GUID, "MPS"}, + { GRUB_EFI_RT_PROPERTIES_TABLE_GUID, "RT PROPERTIES"}, + { GRUB_EFI_SAL_TABLE_GUID, "SAL"}, + { GRUB_EFI_SMBIOS_TABLE_GUID, "SMBIOS"}, + { GRUB_EFI_SMBIOS3_TABLE_GUID, "SMBIOS3"}, + { GRUB_EFI_SYSTEM_RESOURCE_TABLE_GUID, "SYSTEM RESOURCE TABLE"}, + { GRUB_EFI_TIANO_CUSTOM_DECOMPRESS_GUID, "TIANO CUSTOM DECOMPRESS"}, + { GRUB_EFI_TSC_FREQUENCY_GUID, "TSC FREQUENCY"}, + }; + +static grub_err_t +grub_cmd_lsefisystab (struct grub_command *cmd __attribute__ ((unused)), + int argc __attribute__ ((unused)), + char **args __attribute__ ((unused))) +{ + const grub_efi_system_table_t *st = grub_efi_system_table; + grub_efi_configuration_table_t *t; + unsigned int i; + + grub_printf ("Address: %p\n", st); + grub_printf ("Signature: %016" PRIxGRUB_UINT64_T " revision: %08x\n", + st->hdr.signature, st->hdr.revision); + { + char *vendor; + grub_uint16_t *vendor_utf16; + grub_printf ("Vendor: "); + + for (vendor_utf16 = st->firmware_vendor; *vendor_utf16; vendor_utf16++); + /* Allocate extra 3 bytes to simplify math. */ + vendor = grub_calloc (4, vendor_utf16 - st->firmware_vendor + 1); + if (!vendor) + return grub_errno; + *grub_utf16_to_utf8 ((grub_uint8_t *) vendor, st->firmware_vendor, + vendor_utf16 - st->firmware_vendor) = 0; + grub_printf ("%s", vendor); + grub_free (vendor); + } + + grub_printf (", Version=%x\n", st->firmware_revision); + + grub_printf ("%lld tables:\n", (long long) st->num_table_entries); + t = st->configuration_table; + for (i = 0; i < st->num_table_entries; i++) + { + unsigned int j; + + grub_printf ("%p ", t->vendor_table); + + grub_printf ("%08x-%04x-%04x-", + t->vendor_guid.data1, t->vendor_guid.data2, + t->vendor_guid.data3); + for (j = 0; j < 8; j++) + grub_printf ("%02x", t->vendor_guid.data4[j]); + + for (j = 0; j < ARRAY_SIZE (guid_mappings); j++) + if (grub_memcmp (&guid_mappings[j].guid, &t->vendor_guid, + sizeof (grub_efi_guid_t)) == 0) + grub_printf (" %s", guid_mappings[j].name); + + grub_printf ("\n"); + t++; + } + return GRUB_ERR_NONE; +} + +static grub_command_t cmd; + +GRUB_MOD_INIT(lsefisystab) +{ + cmd = grub_register_command ("lsefisystab", grub_cmd_lsefisystab, + "", "Display EFI system tables."); +} + +GRUB_MOD_FINI(lsefisystab) +{ + grub_unregister_command (cmd); +} |