diff options
| -rw-r--r-- | common/efi-guid.c | 5 | ||||
| -rw-r--r-- | drivers/efi/efi-device.c | 169 | ||||
| -rw-r--r-- | include/efi.h | 8 |
3 files changed, 182 insertions, 0 deletions
diff --git a/common/efi-guid.c b/common/efi-guid.c index 04a00ee876..71aa21ddda 100644 --- a/common/efi-guid.c +++ b/common/efi-guid.c @@ -77,6 +77,11 @@ const char *efi_guid_string(efi_guid_t *g) EFI_GUID_STRING(EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL_GUID, "Network Interface Identifier Protocol", "EFI Network Interface Identifier Protocol"); EFI_GUID_STRING(EFI_TIMESTAMP_PROTOCOL_GUID, "Timestamp", "Timestamp"); + /* TPM 1.2 */ + EFI_GUID_STRING( EFI_TCG_PROTOCOL_GUID, "TcgService", "TCGServices Protocol"); + /* TPM 2.0 */ + EFI_GUID_STRING( EFI_TCG2_PROTOCOL_GUID, "Tcg2Service", "TCG2Services Protocol"); + /* File */ EFI_GUID_STRING(EFI_IDEBUSDXE_INF_GUID, "IdeBusDxe.inf", "EFI IdeBusDxe.inf File GUID"); EFI_GUID_STRING(EFI_TERMINALDXE_INF_GUID, "TerminalDxe.inf", "EFI TerminalDxe.inf File GUID"); diff --git a/drivers/efi/efi-device.c b/drivers/efi/efi-device.c index 1877794c6c..db8b25147f 100644 --- a/drivers/efi/efi-device.c +++ b/drivers/efi/efi-device.c @@ -382,3 +382,172 @@ static int efi_init_devices(void) return 0; } core_initcall(efi_init_devices); + +static void efi_devpath(efi_handle_t handle) +{ + efi_status_t efiret; + void *devpath; + char *dev_path_str; + + efiret = BS->open_protocol(handle, &efi_device_path_protocol_guid, + &devpath, NULL, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL); + if (EFI_ERROR(efiret)) + return; + + dev_path_str = device_path_to_str(devpath); + if (dev_path_str) { + printf(" Devpath: \n %s\n", dev_path_str); + free(dev_path_str); + } +} + +static void efi_dump(efi_handle_t *handles, unsigned long handle_count) +{ + int i, j; + unsigned long num_guids; + efi_guid_t **guids; + + if (!handles || !handle_count) + return; + + for (i = 0; i < handle_count; i++) { + printf("handle-%p\n", handles[i]); + + BS->protocols_per_handle(handles[i], &guids, &num_guids); + printf(" Protocols:\n"); + for (j = 0; j < num_guids; j++) + printf(" %d: %pUl: %s\n", j, guids[j], + efi_guid_string(guids[j])); + efi_devpath(handles[i]); + } + printf("\n"); +} + +static unsigned char to_digit(unsigned char c) +{ + if (c >= '0' && c <= '9') + c -= '0'; + else if (c >= 'A' && c <= 'F') + c -= 'A' - 10; + else + c -= 'a' - 10; + + return c; +} + +#define read_xbit(src, dest, bit) \ + do { \ + int __i; \ + for (__i = (bit - 4); __i >= 0; __i -= 4, src++) \ + dest |= to_digit(*src) << __i; \ + } while (0) + +static int do_efi_protocol_dump(int argc, char **argv) +{ + unsigned long handle_count = 0; + efi_handle_t *handles = NULL; + int ret; + efi_guid_t guid; + u32 a = 0; + u16 b = 0; + u16 c = 0; + u8 d0 = 0; + u8 d1 = 0; + u8 d2 = 0; + u8 d3 = 0; + u8 d4 = 0; + u8 d5 = 0; + u8 d6 = 0; + u8 d7 = 0; + + /* Format 220e73b6-6bdb-4413-8405-b974b108619a */ + if (argc == 1) { + char *s = argv[0]; + int len = strlen(s); + + if (len != 36) + return -EINVAL; + + read_xbit(s, a, 32); + if (*s != '-') + return -EINVAL; + s++; + read_xbit(s, b, 16); + if (*s != '-') + return -EINVAL; + s++; + read_xbit(s, c, 16); + if (*s != '-') + return -EINVAL; + s++; + read_xbit(s, d0, 8); + read_xbit(s, d1, 8); + if (*s != '-') + return -EINVAL; + s++; + read_xbit(s, d2, 8); + read_xbit(s, d3, 8); + read_xbit(s, d4, 8); + read_xbit(s, d5, 8); + read_xbit(s, d6, 8); + read_xbit(s, d7, 8); + } else if (argc == 11) { + /* Format : + * 220e73b6 6bdb 4413 84 05 b9 74 b1 08 61 9a + * or + * 0x220e73b6 0x6bdb 0x14413 0x84 0x05 0xb9 0x74 0xb1 0x08 0x61 0x9a + */ + a = simple_strtoul(argv[0], NULL, 16); + b = simple_strtoul(argv[1], NULL, 16); + c = simple_strtoul(argv[2], NULL, 16); + d0 = simple_strtoul(argv[3], NULL, 16); + d1 = simple_strtoul(argv[4], NULL, 16); + d2 = simple_strtoul(argv[5], NULL, 16); + d3 = simple_strtoul(argv[6], NULL, 16); + d4 = simple_strtoul(argv[7], NULL, 16); + d5 = simple_strtoul(argv[8], NULL, 16); + d6 = simple_strtoul(argv[9], NULL, 16); + d7 = simple_strtoul(argv[10], NULL, 16); + } else { + return -EINVAL; + } + + guid = EFI_GUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7); + + printf("Searching for:\n"); + printf(" %pUl: %s\n", &guid, efi_guid_string(&guid)); + + ret = efi_locate_handle(by_protocol, &guid, NULL, &handle_count, &handles); + if (!ret) + efi_dump(handles, handle_count); + + return 0; +} + +static int do_efi_handle_dump(int argc, char *argv[]) +{ + unsigned long handle_count = 0; + efi_handle_t *handles = NULL; + int ret; + + if (argc > 1) + return do_efi_protocol_dump(--argc, ++argv); + + ret = efi_locate_handle(all_handles, NULL, NULL, &handle_count, &handles); + if (!ret) + efi_dump(handles, handle_count); + + return 0; +} + +BAREBOX_CMD_HELP_START(efi_handle_dump) +BAREBOX_CMD_HELP_TEXT("Dump all the efi handle with protocol and devpath\n") +BAREBOX_CMD_HELP_END + +BAREBOX_CMD_START(efi_handle_dump) + .cmd = do_efi_handle_dump, + BAREBOX_CMD_DESC("Usage: efi_handle_dump") + BAREBOX_CMD_OPTS("[a-b-c-d0d1-d3d4d5d6d7] or [a b c d0 d1 d2 d3 d4 d5 d6 d7]") + BAREBOX_CMD_GROUP(CMD_GRP_MISC) + BAREBOX_CMD_HELP(cmd_efi_handle_dump_help) +BAREBOX_CMD_END diff --git a/include/efi.h b/include/efi.h index d1b331ce56..5691f4e8fd 100644 --- a/include/efi.h +++ b/include/efi.h @@ -480,6 +480,14 @@ extern efi_runtime_services_t *RT; #define EFI_SYSTEMD_VENDOR_GUID \ EFI_GUID(0x4a67b082, 0x0a4c, 0x41cf, 0xb6, 0xc7, 0x44, 0x0b, 0x29, 0xbb, 0x8c, 0x4f) +/* for TPM 1.2 */ +#define EFI_TCG_PROTOCOL_GUID \ + EFI_GUID(0xf541796d, 0xa62e, 0x4954, 0xa7, 0x75, 0x95, 0x84, 0xf6, 0x1b, 0x9c, 0xdd) + +/* for TPM 2.0 */ +#define EFI_TCG2_PROTOCOL_GUID \ + EFI_GUID(0x607f766c, 0x7455, 0x42be, 0x93, 0x0b, 0xe4, 0xd7, 0x6d, 0xb2, 0x72, 0x0f) + extern efi_guid_t efi_file_info_id; extern efi_guid_t efi_simple_file_system_protocol_guid; extern efi_guid_t efi_device_path_protocol_guid; |