| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * UEFI Shell-like command |
| * |
| * Copyright (c) 2018 AKASHI Takahiro, Linaro Limited |
| */ |
| |
| #include <charset.h> |
| #include <command.h> |
| #include <dm/device.h> |
| #include <efi_dt_fixup.h> |
| #include <efi_load_initrd.h> |
| #include <efi_loader.h> |
| #include <efi_rng.h> |
| #include <efi_variable.h> |
| #include <exports.h> |
| #include <hexdump.h> |
| #include <log.h> |
| #include <malloc.h> |
| #include <mapmem.h> |
| #include <net.h> |
| #include <part.h> |
| #include <search.h> |
| #include <linux/ctype.h> |
| #include <linux/err.h> |
| |
| #define BS systab.boottime |
| |
| #ifdef CONFIG_EFI_HAVE_CAPSULE_SUPPORT |
| /** |
| * do_efi_capsule_update() - process a capsule update |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug "capsule update" sub-command. |
| * process a capsule update. |
| * |
| * efidebug capsule update [-v] <capsule address> |
| */ |
| static int do_efi_capsule_update(struct cmd_tbl *cmdtp, int flag, |
| int argc, char * const argv[]) |
| { |
| struct efi_capsule_header *capsule; |
| int verbose = 0; |
| char *endp; |
| efi_status_t ret; |
| |
| if (argc != 2 && argc != 3) |
| return CMD_RET_USAGE; |
| |
| if (argc == 3) { |
| if (strcmp(argv[1], "-v")) |
| return CMD_RET_USAGE; |
| |
| verbose = 1; |
| argc--; |
| argv++; |
| } |
| |
| capsule = (typeof(capsule))hextoul(argv[1], &endp); |
| if (endp == argv[1]) { |
| printf("Invalid address: %s", argv[1]); |
| return CMD_RET_FAILURE; |
| } |
| |
| if (verbose) { |
| printf("Capsule guid: %pUl\n", &capsule->capsule_guid); |
| printf("Capsule flags: 0x%x\n", capsule->flags); |
| printf("Capsule header size: 0x%x\n", capsule->header_size); |
| printf("Capsule image size: 0x%x\n", |
| capsule->capsule_image_size); |
| } |
| |
| ret = EFI_CALL(efi_update_capsule(&capsule, 1, 0)); |
| if (ret) { |
| printf("Cannot handle a capsule at %p\n", capsule); |
| return CMD_RET_FAILURE; |
| } |
| |
| return CMD_RET_SUCCESS; |
| } |
| |
| #ifdef CONFIG_EFI_CAPSULE_ON_DISK |
| static int do_efi_capsule_on_disk_update(struct cmd_tbl *cmdtp, int flag, |
| int argc, char * const argv[]) |
| { |
| efi_status_t ret; |
| |
| ret = efi_launch_capsules(); |
| |
| return ret == EFI_SUCCESS ? CMD_RET_SUCCESS : CMD_RET_FAILURE; |
| } |
| #endif |
| |
| /** |
| * do_efi_capsule_show() - show capsule information |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug "capsule show" sub-command. |
| * show capsule information. |
| * |
| * efidebug capsule show <capsule address> |
| */ |
| static int do_efi_capsule_show(struct cmd_tbl *cmdtp, int flag, |
| int argc, char * const argv[]) |
| { |
| struct efi_capsule_header *capsule; |
| char *endp; |
| |
| if (argc != 2) |
| return CMD_RET_USAGE; |
| |
| capsule = (typeof(capsule))hextoul(argv[1], &endp); |
| if (endp == argv[1]) { |
| printf("Invalid address: %s", argv[1]); |
| return CMD_RET_FAILURE; |
| } |
| |
| printf("Capsule guid: %pUl\n", &capsule->capsule_guid); |
| printf("Capsule flags: 0x%x\n", capsule->flags); |
| printf("Capsule header size: 0x%x\n", capsule->header_size); |
| printf("Capsule image size: 0x%x\n", |
| capsule->capsule_image_size); |
| |
| return CMD_RET_SUCCESS; |
| } |
| |
| #ifdef CONFIG_EFI_ESRT |
| |
| #define EFI_ESRT_FW_TYPE_NUM 4 |
| char *efi_fw_type_str[EFI_ESRT_FW_TYPE_NUM] = {"unknown", "system FW", "device FW", |
| "UEFI driver"}; |
| |
| #define EFI_ESRT_UPDATE_STATUS_NUM 9 |
| char *efi_update_status_str[EFI_ESRT_UPDATE_STATUS_NUM] = {"success", "unsuccessful", |
| "insufficient resources", "incorrect version", "invalid format", |
| "auth error", "power event (AC)", "power event (batt)", |
| "unsatisfied dependencies"}; |
| |
| #define EFI_FW_TYPE_STR_GET(idx) (\ |
| EFI_ESRT_FW_TYPE_NUM > (idx) ? efi_fw_type_str[(idx)] : "error"\ |
| ) |
| |
| #define EFI_FW_STATUS_STR_GET(idx) (\ |
| EFI_ESRT_UPDATE_STATUS_NUM > (idx) ? efi_update_status_str[(idx)] : "error"\ |
| ) |
| |
| /** |
| * do_efi_capsule_esrt() - manage UEFI capsules |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, |
| * CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug "capsule esrt" sub-command. |
| * The prints the current ESRT table. |
| * |
| * efidebug capsule esrt |
| */ |
| static int do_efi_capsule_esrt(struct cmd_tbl *cmdtp, int flag, |
| int argc, char * const argv[]) |
| { |
| struct efi_system_resource_table *esrt; |
| |
| if (argc != 1) |
| return CMD_RET_USAGE; |
| |
| esrt = efi_get_configuration_table(&efi_esrt_guid); |
| if (!esrt) { |
| log_info("ESRT: table not present\n"); |
| return CMD_RET_SUCCESS; |
| } |
| |
| printf("========================================\n"); |
| printf("ESRT: fw_resource_count=%d\n", esrt->fw_resource_count); |
| printf("ESRT: fw_resource_count_max=%d\n", esrt->fw_resource_count_max); |
| printf("ESRT: fw_resource_version=%lld\n", esrt->fw_resource_version); |
| |
| for (int idx = 0; idx < esrt->fw_resource_count; idx++) { |
| printf("[entry %d]==============================\n", idx); |
| printf("ESRT: fw_class=%pUL\n", &esrt->entries[idx].fw_class); |
| printf("ESRT: fw_type=%s\n", EFI_FW_TYPE_STR_GET(esrt->entries[idx].fw_type)); |
| printf("ESRT: fw_version=%d\n", esrt->entries[idx].fw_version); |
| printf("ESRT: lowest_supported_fw_version=%d\n", |
| esrt->entries[idx].lowest_supported_fw_version); |
| printf("ESRT: capsule_flags=%d\n", |
| esrt->entries[idx].capsule_flags); |
| printf("ESRT: last_attempt_version=%d\n", |
| esrt->entries[idx].last_attempt_version); |
| printf("ESRT: last_attempt_status=%s\n", |
| EFI_FW_STATUS_STR_GET(esrt->entries[idx].last_attempt_status)); |
| } |
| printf("========================================\n"); |
| |
| return CMD_RET_SUCCESS; |
| } |
| #endif /* CONFIG_EFI_ESRT */ |
| /** |
| * do_efi_capsule_res() - show a capsule update result |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug "capsule result" sub-command. |
| * show a capsule update result. |
| * If result number is not specified, CapsuleLast will be shown. |
| * |
| * efidebug capsule result [<capsule result number>] |
| */ |
| static int do_efi_capsule_res(struct cmd_tbl *cmdtp, int flag, |
| int argc, char * const argv[]) |
| { |
| int capsule_id; |
| char *endp; |
| u16 var_name16[12]; |
| efi_guid_t guid; |
| struct efi_capsule_result_variable_header *result = NULL; |
| efi_uintn_t size; |
| efi_status_t ret; |
| |
| if (argc != 1 && argc != 2) |
| return CMD_RET_USAGE; |
| |
| guid = efi_guid_capsule_report; |
| if (argc == 1) { |
| size = sizeof(var_name16); |
| ret = efi_get_variable_int(u"CapsuleLast", &guid, NULL, |
| &size, var_name16, NULL); |
| |
| if (ret != EFI_SUCCESS) { |
| if (ret == EFI_NOT_FOUND) |
| printf("CapsuleLast doesn't exist\n"); |
| else |
| printf("Failed to get CapsuleLast\n"); |
| |
| return CMD_RET_FAILURE; |
| } |
| printf("CapsuleLast is %ls\n", var_name16); |
| } else { |
| argc--; |
| argv++; |
| |
| capsule_id = hextoul(argv[0], &endp); |
| if (capsule_id < 0 || capsule_id > 0xffff) |
| return CMD_RET_USAGE; |
| |
| efi_create_indexed_name(var_name16, sizeof(var_name16), |
| "Capsule", capsule_id); |
| } |
| |
| size = 0; |
| ret = efi_get_variable_int(var_name16, &guid, NULL, &size, NULL, NULL); |
| if (ret == EFI_BUFFER_TOO_SMALL) { |
| result = malloc(size); |
| if (!result) |
| return CMD_RET_FAILURE; |
| ret = efi_get_variable_int(var_name16, &guid, NULL, &size, |
| result, NULL); |
| } |
| if (ret != EFI_SUCCESS) { |
| free(result); |
| printf("Failed to get %ls\n", var_name16); |
| |
| return CMD_RET_FAILURE; |
| } |
| |
| printf("Result total size: 0x%x\n", result->variable_total_size); |
| printf("Capsule guid: %pUl\n", &result->capsule_guid); |
| printf("Time processed: %04d-%02d-%02d %02d:%02d:%02d\n", |
| result->capsule_processed.year, result->capsule_processed.month, |
| result->capsule_processed.day, result->capsule_processed.hour, |
| result->capsule_processed.minute, |
| result->capsule_processed.second); |
| printf("Capsule status: 0x%lx\n", result->capsule_status); |
| |
| free(result); |
| |
| return CMD_RET_SUCCESS; |
| } |
| |
| static struct cmd_tbl cmd_efidebug_capsule_sub[] = { |
| U_BOOT_CMD_MKENT(update, CONFIG_SYS_MAXARGS, 1, do_efi_capsule_update, |
| "", ""), |
| U_BOOT_CMD_MKENT(show, CONFIG_SYS_MAXARGS, 1, do_efi_capsule_show, |
| "", ""), |
| #ifdef CONFIG_EFI_ESRT |
| U_BOOT_CMD_MKENT(esrt, CONFIG_SYS_MAXARGS, 1, do_efi_capsule_esrt, |
| "", ""), |
| #endif |
| #ifdef CONFIG_EFI_CAPSULE_ON_DISK |
| U_BOOT_CMD_MKENT(disk-update, 0, 0, do_efi_capsule_on_disk_update, |
| "", ""), |
| #endif |
| U_BOOT_CMD_MKENT(result, CONFIG_SYS_MAXARGS, 1, do_efi_capsule_res, |
| "", ""), |
| }; |
| |
| /** |
| * do_efi_capsule() - manage UEFI capsules |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, |
| * CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug "capsule" sub-command. |
| */ |
| static int do_efi_capsule(struct cmd_tbl *cmdtp, int flag, |
| int argc, char * const argv[]) |
| { |
| struct cmd_tbl *cp; |
| |
| if (argc < 2) |
| return CMD_RET_USAGE; |
| |
| argc--; argv++; |
| |
| cp = find_cmd_tbl(argv[0], cmd_efidebug_capsule_sub, |
| ARRAY_SIZE(cmd_efidebug_capsule_sub)); |
| if (!cp) |
| return CMD_RET_USAGE; |
| |
| return cp->cmd(cmdtp, flag, argc, argv); |
| } |
| #endif /* CONFIG_EFI_HAVE_CAPSULE_SUPPORT */ |
| |
| #define EFI_HANDLE_WIDTH ((int)sizeof(efi_handle_t) * 2) |
| |
| static const char spc[] = " "; |
| static const char sep[] = "================"; |
| |
| /** |
| * efi_get_driver_handle_info() - get information of UEFI driver |
| * |
| * @handle: Handle of UEFI device |
| * @driver_name: Driver name |
| * @image_path: Pointer to text of device path |
| * Return: 0 on success, -1 on failure |
| * |
| * Currently return no useful information as all UEFI drivers are |
| * built-in.. |
| */ |
| static int efi_get_driver_handle_info(efi_handle_t handle, u16 **driver_name, |
| u16 **image_path) |
| { |
| struct efi_handler *handler; |
| struct efi_loaded_image *image; |
| efi_status_t ret; |
| |
| /* |
| * driver name |
| * TODO: support EFI_COMPONENT_NAME2_PROTOCOL |
| */ |
| *driver_name = NULL; |
| |
| /* image name */ |
| ret = efi_search_protocol(handle, &efi_guid_loaded_image, &handler); |
| if (ret != EFI_SUCCESS) { |
| *image_path = NULL; |
| return 0; |
| } |
| |
| image = handler->protocol_interface; |
| *image_path = efi_dp_str(image->file_path); |
| |
| return 0; |
| } |
| |
| /** |
| * do_efi_show_drivers() - show UEFI drivers |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug "drivers" sub-command. |
| * Show all UEFI drivers and their information. |
| */ |
| static int do_efi_show_drivers(struct cmd_tbl *cmdtp, int flag, |
| int argc, char *const argv[]) |
| { |
| efi_handle_t *handles; |
| efi_uintn_t num, i; |
| u16 *driver_name, *image_path_text; |
| efi_status_t ret; |
| |
| ret = EFI_CALL(efi_locate_handle_buffer( |
| BY_PROTOCOL, &efi_guid_driver_binding_protocol, |
| NULL, &num, &handles)); |
| if (ret != EFI_SUCCESS) |
| return CMD_RET_FAILURE; |
| |
| if (!num) |
| return CMD_RET_SUCCESS; |
| |
| printf("Driver%.*s Name Image Path\n", |
| EFI_HANDLE_WIDTH - 6, spc); |
| printf("%.*s ==================== ====================\n", |
| EFI_HANDLE_WIDTH, sep); |
| for (i = 0; i < num; i++) { |
| if (!efi_get_driver_handle_info(handles[i], &driver_name, |
| &image_path_text)) { |
| if (image_path_text) |
| printf("%p %-20ls %ls\n", handles[i], |
| driver_name, image_path_text); |
| else |
| printf("%p %-20ls <built-in>\n", |
| handles[i], driver_name); |
| efi_free_pool(driver_name); |
| efi_free_pool(image_path_text); |
| } |
| } |
| |
| efi_free_pool(handles); |
| |
| return CMD_RET_SUCCESS; |
| } |
| |
| /** |
| * do_efi_show_handles() - show UEFI handles |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug "dh" sub-command. |
| * Show all UEFI handles and their information, currently all protocols |
| * added to handle. |
| */ |
| static int do_efi_show_handles(struct cmd_tbl *cmdtp, int flag, |
| int argc, char *const argv[]) |
| { |
| efi_handle_t *handles; |
| efi_guid_t **guid; |
| efi_uintn_t num, count, i, j; |
| efi_status_t ret; |
| |
| ret = EFI_CALL(efi_locate_handle_buffer(ALL_HANDLES, NULL, NULL, |
| &num, &handles)); |
| if (ret != EFI_SUCCESS) |
| return CMD_RET_FAILURE; |
| |
| if (!num) |
| return CMD_RET_SUCCESS; |
| |
| for (i = 0; i < num; i++) { |
| struct efi_handler *handler; |
| |
| printf("\n%p", handles[i]); |
| if (handles[i]->dev) |
| printf(" (%s)", handles[i]->dev->name); |
| printf("\n"); |
| /* Print device path */ |
| ret = efi_search_protocol(handles[i], &efi_guid_device_path, |
| &handler); |
| if (ret == EFI_SUCCESS) |
| printf(" %pD\n", handler->protocol_interface); |
| ret = EFI_CALL(BS->protocols_per_handle(handles[i], &guid, |
| &count)); |
| /* Print other protocols */ |
| for (j = 0; j < count; j++) { |
| if (guidcmp(guid[j], &efi_guid_device_path)) |
| printf(" %pUs\n", guid[j]); |
| } |
| efi_free_pool(guid); |
| } |
| |
| efi_free_pool(handles); |
| |
| return CMD_RET_SUCCESS; |
| } |
| |
| /** |
| * do_efi_show_images() - show UEFI images |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug "images" sub-command. |
| * Show all UEFI loaded images and their information. |
| */ |
| static int do_efi_show_images(struct cmd_tbl *cmdtp, int flag, |
| int argc, char *const argv[]) |
| { |
| efi_print_image_infos(NULL); |
| |
| return CMD_RET_SUCCESS; |
| } |
| |
| static const char * const efi_mem_type_string[] = { |
| [EFI_RESERVED_MEMORY_TYPE] = "RESERVED", |
| [EFI_LOADER_CODE] = "LOADER CODE", |
| [EFI_LOADER_DATA] = "LOADER DATA", |
| [EFI_BOOT_SERVICES_CODE] = "BOOT CODE", |
| [EFI_BOOT_SERVICES_DATA] = "BOOT DATA", |
| [EFI_RUNTIME_SERVICES_CODE] = "RUNTIME CODE", |
| [EFI_RUNTIME_SERVICES_DATA] = "RUNTIME DATA", |
| [EFI_CONVENTIONAL_MEMORY] = "CONVENTIONAL", |
| [EFI_UNUSABLE_MEMORY] = "UNUSABLE MEM", |
| [EFI_ACPI_RECLAIM_MEMORY] = "ACPI RECLAIM MEM", |
| [EFI_ACPI_MEMORY_NVS] = "ACPI NVS", |
| [EFI_MMAP_IO] = "IO", |
| [EFI_MMAP_IO_PORT] = "IO PORT", |
| [EFI_PAL_CODE] = "PAL", |
| [EFI_PERSISTENT_MEMORY_TYPE] = "PERSISTENT", |
| }; |
| |
| static const struct efi_mem_attrs { |
| const u64 bit; |
| const char *text; |
| } efi_mem_attrs[] = { |
| {EFI_MEMORY_UC, "UC"}, |
| {EFI_MEMORY_UC, "UC"}, |
| {EFI_MEMORY_WC, "WC"}, |
| {EFI_MEMORY_WT, "WT"}, |
| {EFI_MEMORY_WB, "WB"}, |
| {EFI_MEMORY_UCE, "UCE"}, |
| {EFI_MEMORY_WP, "WP"}, |
| {EFI_MEMORY_RP, "RP"}, |
| {EFI_MEMORY_XP, "WP"}, |
| {EFI_MEMORY_NV, "NV"}, |
| {EFI_MEMORY_MORE_RELIABLE, "REL"}, |
| {EFI_MEMORY_RO, "RO"}, |
| {EFI_MEMORY_SP, "SP"}, |
| {EFI_MEMORY_RUNTIME, "RT"}, |
| }; |
| |
| /** |
| * print_memory_attributes() - print memory map attributes |
| * |
| * @attributes: Attribute value |
| * |
| * Print memory map attributes |
| */ |
| static void print_memory_attributes(u64 attributes) |
| { |
| int sep, i; |
| |
| for (sep = 0, i = 0; i < ARRAY_SIZE(efi_mem_attrs); i++) |
| if (attributes & efi_mem_attrs[i].bit) { |
| if (sep) { |
| putc('|'); |
| } else { |
| putc(' '); |
| sep = 1; |
| } |
| puts(efi_mem_attrs[i].text); |
| } |
| } |
| |
| #define EFI_PHYS_ADDR_WIDTH (int)(sizeof(efi_physical_addr_t) * 2) |
| |
| /** |
| * do_efi_show_memmap() - show UEFI memory map |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug "memmap" sub-command. |
| * Show UEFI memory map. |
| */ |
| static int do_efi_show_memmap(struct cmd_tbl *cmdtp, int flag, |
| int argc, char *const argv[]) |
| { |
| struct efi_mem_desc *memmap, *map; |
| efi_uintn_t map_size; |
| const char *type; |
| int i; |
| efi_status_t ret; |
| |
| ret = efi_get_memory_map_alloc(&map_size, &memmap); |
| if (ret != EFI_SUCCESS) |
| return CMD_RET_FAILURE; |
| |
| printf("Type Start%.*s End%.*s Attributes\n", |
| EFI_PHYS_ADDR_WIDTH - 5, spc, EFI_PHYS_ADDR_WIDTH - 3, spc); |
| printf("================ %.*s %.*s ==========\n", |
| EFI_PHYS_ADDR_WIDTH, sep, EFI_PHYS_ADDR_WIDTH, sep); |
| /* |
| * Coverity check: dereferencing null pointer "map." |
| * This is a false positive as memmap will always be |
| * populated by allocate_pool() above. |
| */ |
| for (i = 0, map = memmap; i < map_size / sizeof(*map); map++, i++) { |
| if (map->type < ARRAY_SIZE(efi_mem_type_string)) |
| type = efi_mem_type_string[map->type]; |
| else |
| type = "(unknown)"; |
| |
| printf("%-16s %.*llx-%.*llx", type, |
| EFI_PHYS_ADDR_WIDTH, |
| (u64)map_to_sysmem((void *)(uintptr_t) |
| map->physical_start), |
| EFI_PHYS_ADDR_WIDTH, |
| (u64)map_to_sysmem((void *)(uintptr_t) |
| (map->physical_start + |
| map->num_pages * EFI_PAGE_SIZE))); |
| |
| print_memory_attributes(map->attribute); |
| putc('\n'); |
| } |
| |
| efi_free_pool(memmap); |
| |
| return CMD_RET_SUCCESS; |
| } |
| |
| /** |
| * do_efi_show_tables() - show UEFI configuration tables |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug "tables" sub-command. |
| * Show UEFI configuration tables. |
| */ |
| static int do_efi_show_tables(struct cmd_tbl *cmdtp, int flag, |
| int argc, char *const argv[]) |
| { |
| efi_show_tables(&systab); |
| |
| return CMD_RET_SUCCESS; |
| } |
| |
| /** |
| * create_initrd_dp() - create a special device for our Boot### option |
| * |
| * @dev: device |
| * @part: disk partition |
| * @file: filename |
| * @shortform: create short form device path |
| * Return: pointer to the device path or ERR_PTR |
| */ |
| static |
| struct efi_device_path *create_initrd_dp(const char *dev, const char *part, |
| const char *file, int shortform) |
| |
| { |
| struct efi_device_path *tmp_dp = NULL, *tmp_fp = NULL, *short_fp = NULL; |
| struct efi_device_path *initrd_dp = NULL; |
| efi_status_t ret; |
| const struct efi_initrd_dp id_dp = { |
| .vendor = { |
| { |
| DEVICE_PATH_TYPE_MEDIA_DEVICE, |
| DEVICE_PATH_SUB_TYPE_VENDOR_PATH, |
| sizeof(id_dp.vendor), |
| }, |
| EFI_INITRD_MEDIA_GUID, |
| }, |
| .end = { |
| DEVICE_PATH_TYPE_END, |
| DEVICE_PATH_SUB_TYPE_END, |
| sizeof(id_dp.end), |
| } |
| }; |
| |
| ret = efi_dp_from_name(dev, part, file, &tmp_dp, &tmp_fp); |
| if (ret != EFI_SUCCESS) { |
| printf("Cannot create device path for \"%s %s\"\n", part, file); |
| goto out; |
| } |
| if (shortform) |
| short_fp = efi_dp_shorten(tmp_fp); |
| if (!short_fp) |
| short_fp = tmp_fp; |
| |
| initrd_dp = efi_dp_concat((const struct efi_device_path *)&id_dp, |
| short_fp, 0); |
| |
| out: |
| efi_free_pool(tmp_dp); |
| efi_free_pool(tmp_fp); |
| return initrd_dp; |
| } |
| |
| /** |
| * efi_boot_add_uri() - set URI load option |
| * |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * @var_name16: variable name buffer |
| * @var_name16_size: variable name buffer size |
| * @lo: pointer to the load option |
| * @file_path: buffer to set the generated device path pointer |
| * @fp_size: file_path size |
| * Return: CMD_RET_SUCCESS on success, |
| * CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure |
| */ |
| static int efi_boot_add_uri(int argc, char *const argv[], u16 *var_name16, |
| size_t var_name16_size, struct efi_load_option *lo, |
| struct efi_device_path **file_path, |
| efi_uintn_t *fp_size) |
| { |
| int id; |
| char *pos; |
| char *endp; |
| u16 *label; |
| efi_uintn_t uridp_len; |
| struct efi_device_path_uri *uridp; |
| |
| if (argc < 3 || lo->label) |
| return CMD_RET_USAGE; |
| |
| id = (int)hextoul(argv[1], &endp); |
| if (*endp != '\0' || id > 0xffff) |
| return CMD_RET_USAGE; |
| |
| label = efi_convert_string(argv[2]); |
| if (!label) |
| return CMD_RET_FAILURE; |
| |
| if (!wget_validate_uri(argv[3])) { |
| printf("ERROR: invalid URI\n"); |
| return CMD_RET_FAILURE; |
| } |
| |
| efi_create_indexed_name(var_name16, var_name16_size, "Boot", id); |
| lo->label = label; |
| |
| uridp_len = sizeof(struct efi_device_path) + strlen(argv[3]) + 1; |
| uridp = efi_alloc(uridp_len + sizeof(END)); |
| if (!uridp) { |
| log_err("Out of memory\n"); |
| return CMD_RET_FAILURE; |
| } |
| uridp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE; |
| uridp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_URI; |
| uridp->dp.length = uridp_len; |
| strcpy(uridp->uri, argv[3]); |
| pos = (char *)uridp + uridp_len; |
| memcpy(pos, &END, sizeof(END)); |
| |
| *file_path = &uridp->dp; |
| *fp_size += uridp_len + sizeof(END); |
| |
| return CMD_RET_SUCCESS; |
| } |
| |
| /** |
| * do_efi_boot_add() - set UEFI load option |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, |
| * CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug "boot add" sub-command. Create or change UEFI load option. |
| * |
| * efidebug boot add -b <id> <label> <interface> <devnum>[:<part>] <file> |
| * -i <file> <interface2> <devnum2>[:<part>] <initrd> |
| * -s '<options>' |
| */ |
| static int do_efi_boot_add(struct cmd_tbl *cmdtp, int flag, |
| int argc, char *const argv[]) |
| { |
| int id; |
| char *endp; |
| u16 var_name16[9]; |
| efi_guid_t guid; |
| u16 *label; |
| struct efi_device_path *file_path = NULL; |
| struct efi_device_path *fp_free = NULL; |
| struct efi_device_path *final_fp = NULL; |
| struct efi_device_path *initrd_dp = NULL; |
| struct efi_load_option lo; |
| void *data = NULL; |
| efi_uintn_t size; |
| efi_uintn_t fp_size = 0; |
| efi_status_t ret; |
| int r = CMD_RET_SUCCESS; |
| |
| guid = efi_global_variable_guid; |
| |
| /* attributes */ |
| lo.attributes = LOAD_OPTION_ACTIVE; /* always ACTIVE */ |
| lo.optional_data = NULL; |
| lo.label = NULL; |
| |
| argc--; |
| argv++; /* 'add' */ |
| for (; argc > 0; argc--, argv++) { |
| int shortform; |
| |
| if (*argv[0] != '-' || strlen(argv[0]) != 2) { |
| r = CMD_RET_USAGE; |
| goto out; |
| } |
| shortform = 0; |
| switch (argv[0][1]) { |
| case 'b': |
| shortform = 1; |
| /* fallthrough */ |
| case 'B': |
| if (argc < 5 || lo.label) { |
| r = CMD_RET_USAGE; |
| goto out; |
| } |
| id = (int)hextoul(argv[1], &endp); |
| if (*endp != '\0' || id > 0xffff) |
| return CMD_RET_USAGE; |
| |
| efi_create_indexed_name(var_name16, sizeof(var_name16), |
| "Boot", id); |
| |
| /* label */ |
| label = efi_convert_string(argv[2]); |
| if (!label) |
| return CMD_RET_FAILURE; |
| lo.label = label; /* label will be changed below */ |
| |
| /* file path */ |
| ret = efi_dp_from_name(argv[3], argv[4], argv[5], |
| NULL, &fp_free); |
| if (ret != EFI_SUCCESS) { |
| printf("Cannot create device path for \"%s %s\"\n", |
| argv[3], argv[4]); |
| r = CMD_RET_FAILURE; |
| goto out; |
| } |
| if (shortform) |
| file_path = efi_dp_shorten(fp_free); |
| if (!file_path) |
| file_path = fp_free; |
| fp_size += efi_dp_size(file_path) + |
| sizeof(struct efi_device_path); |
| argc -= 5; |
| argv += 5; |
| break; |
| case 'i': |
| shortform = 1; |
| /* fallthrough */ |
| case 'I': |
| if (argc < 3 || initrd_dp) { |
| r = CMD_RET_USAGE; |
| goto out; |
| } |
| |
| initrd_dp = create_initrd_dp(argv[1], argv[2], argv[3], |
| shortform); |
| if (!initrd_dp) { |
| printf("Cannot add an initrd\n"); |
| r = CMD_RET_FAILURE; |
| goto out; |
| } |
| argc -= 3; |
| argv += 3; |
| fp_size += efi_dp_size(initrd_dp) + |
| sizeof(struct efi_device_path); |
| break; |
| case 's': |
| if (argc < 1 || lo.optional_data) { |
| r = CMD_RET_USAGE; |
| goto out; |
| } |
| lo.optional_data = (const u8 *)argv[1]; |
| argc -= 1; |
| argv += 1; |
| break; |
| case 'u': |
| if (IS_ENABLED(CONFIG_EFI_HTTP_BOOT)) { |
| r = efi_boot_add_uri(argc, argv, var_name16, |
| sizeof(var_name16), &lo, |
| &file_path, &fp_size); |
| if (r != CMD_RET_SUCCESS) |
| goto out; |
| fp_free = file_path; |
| argc -= 3; |
| argv += 3; |
| } else{ |
| r = CMD_RET_USAGE; |
| goto out; |
| } |
| break; |
| default: |
| r = CMD_RET_USAGE; |
| goto out; |
| } |
| } |
| |
| if (!file_path) { |
| printf("Missing binary\n"); |
| r = CMD_RET_USAGE; |
| goto out; |
| } |
| |
| final_fp = efi_dp_concat(file_path, initrd_dp, 1); |
| if (!final_fp) { |
| printf("Cannot create final device path\n"); |
| r = CMD_RET_FAILURE; |
| goto out; |
| } |
| |
| lo.file_path = final_fp; |
| lo.file_path_length = fp_size; |
| |
| size = efi_serialize_load_option(&lo, (u8 **)&data); |
| if (!size) { |
| r = CMD_RET_FAILURE; |
| goto out; |
| } |
| |
| ret = efi_set_variable_int(var_name16, &guid, |
| EFI_VARIABLE_NON_VOLATILE | |
| EFI_VARIABLE_BOOTSERVICE_ACCESS | |
| EFI_VARIABLE_RUNTIME_ACCESS, |
| size, data, false); |
| if (ret != EFI_SUCCESS) { |
| printf("Cannot set %ls\n", var_name16); |
| r = CMD_RET_FAILURE; |
| } |
| |
| out: |
| free(data); |
| efi_free_pool(final_fp); |
| efi_free_pool(initrd_dp); |
| efi_free_pool(fp_free); |
| free(lo.label); |
| |
| return r; |
| } |
| |
| /** |
| * do_efi_boot_rm() - delete UEFI load options |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug "boot rm" sub-command. |
| * Delete UEFI load options. |
| * |
| * efidebug boot rm <id> ... |
| */ |
| static int do_efi_boot_rm(struct cmd_tbl *cmdtp, int flag, |
| int argc, char *const argv[]) |
| { |
| efi_guid_t guid; |
| int id, i; |
| char *endp; |
| u16 var_name16[9]; |
| efi_status_t ret; |
| |
| if (argc == 1) |
| return CMD_RET_USAGE; |
| |
| guid = efi_global_variable_guid; |
| for (i = 1; i < argc; i++, argv++) { |
| id = (int)hextoul(argv[1], &endp); |
| if (*endp != '\0' || id > 0xffff) |
| return CMD_RET_FAILURE; |
| |
| efi_create_indexed_name(var_name16, sizeof(var_name16), |
| "Boot", id); |
| ret = efi_set_variable_int(var_name16, &guid, 0, 0, NULL, |
| false); |
| if (ret) { |
| printf("Cannot remove %ls\n", var_name16); |
| return CMD_RET_FAILURE; |
| } |
| } |
| |
| return CMD_RET_SUCCESS; |
| } |
| |
| /** |
| * show_efi_boot_opt_data() - dump UEFI load option |
| * |
| * @varname16: variable name |
| * @data: value of UEFI load option variable |
| * @size: size of the boot option |
| * |
| * Decode the value of UEFI load option variable and print information. |
| */ |
| static void show_efi_boot_opt_data(u16 *varname16, void *data, size_t *size) |
| { |
| struct efi_device_path *initrd_path = NULL; |
| struct efi_load_option lo; |
| efi_status_t ret; |
| |
| ret = efi_deserialize_load_option(&lo, data, size); |
| if (ret != EFI_SUCCESS) { |
| printf("%ls: invalid load option\n", varname16); |
| return; |
| } |
| |
| printf("%ls:\nattributes: %c%c%c (0x%08x)\n", |
| varname16, |
| /* ACTIVE */ |
| lo.attributes & LOAD_OPTION_ACTIVE ? 'A' : '-', |
| /* FORCE RECONNECT */ |
| lo.attributes & LOAD_OPTION_FORCE_RECONNECT ? 'R' : '-', |
| /* HIDDEN */ |
| lo.attributes & LOAD_OPTION_HIDDEN ? 'H' : '-', |
| lo.attributes); |
| printf(" label: %ls\n", lo.label); |
| |
| printf(" file_path: %pD\n", lo.file_path); |
| |
| initrd_path = efi_dp_from_lo(&lo, &efi_lf2_initrd_guid); |
| if (initrd_path) { |
| printf(" initrd_path: %pD\n", initrd_path); |
| efi_free_pool(initrd_path); |
| } |
| |
| printf(" data:\n"); |
| print_hex_dump(" ", DUMP_PREFIX_OFFSET, 16, 1, |
| lo.optional_data, *size, true); |
| } |
| |
| /** |
| * show_efi_boot_opt() - dump UEFI load option |
| * |
| * @varname16: variable name |
| * |
| * Dump information defined by UEFI load option. |
| */ |
| static void show_efi_boot_opt(u16 *varname16) |
| { |
| void *data; |
| efi_uintn_t size; |
| efi_status_t ret; |
| |
| size = 0; |
| ret = efi_get_variable_int(varname16, &efi_global_variable_guid, |
| NULL, &size, NULL, NULL); |
| if (ret == EFI_BUFFER_TOO_SMALL) { |
| data = malloc(size); |
| if (!data) { |
| printf("ERROR: Out of memory\n"); |
| return; |
| } |
| ret = efi_get_variable_int(varname16, &efi_global_variable_guid, |
| NULL, &size, data, NULL); |
| if (ret == EFI_SUCCESS) |
| show_efi_boot_opt_data(varname16, data, &size); |
| free(data); |
| } |
| } |
| |
| /** |
| * show_efi_boot_dump() - dump all UEFI load options |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug "boot dump" sub-command. |
| * Dump information of all UEFI load options defined. |
| * |
| * efidebug boot dump |
| */ |
| static int do_efi_boot_dump(struct cmd_tbl *cmdtp, int flag, |
| int argc, char *const argv[]) |
| { |
| u16 *var_name16, *p; |
| efi_uintn_t buf_size, size; |
| efi_guid_t guid; |
| efi_status_t ret; |
| |
| if (argc > 1) |
| return CMD_RET_USAGE; |
| |
| buf_size = 128; |
| var_name16 = malloc(buf_size); |
| if (!var_name16) |
| return CMD_RET_FAILURE; |
| |
| var_name16[0] = 0; |
| for (;;) { |
| size = buf_size; |
| ret = efi_get_next_variable_name_int(&size, var_name16, &guid); |
| if (ret == EFI_NOT_FOUND) |
| break; |
| if (ret == EFI_BUFFER_TOO_SMALL) { |
| buf_size = size; |
| p = realloc(var_name16, buf_size); |
| if (!p) { |
| free(var_name16); |
| return CMD_RET_FAILURE; |
| } |
| var_name16 = p; |
| ret = efi_get_next_variable_name_int(&size, var_name16, |
| &guid); |
| } |
| if (ret != EFI_SUCCESS) { |
| free(var_name16); |
| return CMD_RET_FAILURE; |
| } |
| |
| if (efi_varname_is_load_option(var_name16, NULL)) |
| show_efi_boot_opt(var_name16); |
| } |
| |
| free(var_name16); |
| |
| return CMD_RET_SUCCESS; |
| } |
| |
| /** |
| * show_efi_boot_order() - show order of UEFI load options |
| * |
| * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure |
| * |
| * Show order of UEFI load options defined by BootOrder variable. |
| */ |
| static int show_efi_boot_order(void) |
| { |
| u16 *bootorder; |
| efi_uintn_t size; |
| int num, i; |
| u16 var_name16[9]; |
| void *data; |
| struct efi_load_option lo; |
| efi_status_t ret; |
| |
| size = 0; |
| ret = efi_get_variable_int(u"BootOrder", &efi_global_variable_guid, |
| NULL, &size, NULL, NULL); |
| if (ret != EFI_BUFFER_TOO_SMALL) { |
| if (ret == EFI_NOT_FOUND) { |
| printf("BootOrder not defined\n"); |
| return CMD_RET_SUCCESS; |
| } else { |
| return CMD_RET_FAILURE; |
| } |
| } |
| bootorder = malloc(size); |
| if (!bootorder) { |
| printf("ERROR: Out of memory\n"); |
| return CMD_RET_FAILURE; |
| } |
| ret = efi_get_variable_int(u"BootOrder", &efi_global_variable_guid, |
| NULL, &size, bootorder, NULL); |
| if (ret != EFI_SUCCESS) { |
| ret = CMD_RET_FAILURE; |
| goto out; |
| } |
| |
| num = size / sizeof(u16); |
| for (i = 0; i < num; i++) { |
| efi_create_indexed_name(var_name16, sizeof(var_name16), |
| "Boot", bootorder[i]); |
| |
| size = 0; |
| ret = efi_get_variable_int(var_name16, |
| &efi_global_variable_guid, NULL, |
| &size, NULL, NULL); |
| if (ret != EFI_BUFFER_TOO_SMALL) { |
| printf("%2d: %ls: (not defined)\n", i + 1, var_name16); |
| continue; |
| } |
| |
| data = malloc(size); |
| if (!data) { |
| ret = CMD_RET_FAILURE; |
| goto out; |
| } |
| ret = efi_get_variable_int(var_name16, |
| &efi_global_variable_guid, NULL, |
| &size, data, NULL); |
| if (ret != EFI_SUCCESS) { |
| free(data); |
| ret = CMD_RET_FAILURE; |
| goto out; |
| } |
| |
| ret = efi_deserialize_load_option(&lo, data, &size); |
| if (ret != EFI_SUCCESS) { |
| printf("%ls: invalid load option\n", var_name16); |
| ret = CMD_RET_FAILURE; |
| goto out; |
| } |
| |
| printf("%2d: %ls: %ls\n", i + 1, var_name16, lo.label); |
| |
| free(data); |
| } |
| out: |
| free(bootorder); |
| |
| return ret; |
| } |
| |
| /** |
| * do_efi_boot_next() - manage UEFI BootNext variable |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, |
| * CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug "boot next" sub-command. |
| * Set BootNext variable. |
| * |
| * efidebug boot next <id> |
| */ |
| static int do_efi_boot_next(struct cmd_tbl *cmdtp, int flag, |
| int argc, char *const argv[]) |
| { |
| u16 bootnext; |
| efi_uintn_t size; |
| char *endp; |
| efi_guid_t guid; |
| efi_status_t ret; |
| int r = CMD_RET_SUCCESS; |
| |
| if (argc != 2) |
| return CMD_RET_USAGE; |
| |
| bootnext = (u16)hextoul(argv[1], &endp); |
| if (*endp) { |
| printf("invalid value: %s\n", argv[1]); |
| r = CMD_RET_FAILURE; |
| goto out; |
| } |
| |
| guid = efi_global_variable_guid; |
| size = sizeof(u16); |
| ret = efi_set_variable_int(u"BootNext", &guid, |
| EFI_VARIABLE_NON_VOLATILE | |
| EFI_VARIABLE_BOOTSERVICE_ACCESS | |
| EFI_VARIABLE_RUNTIME_ACCESS, |
| size, &bootnext, false); |
| if (ret != EFI_SUCCESS) { |
| printf("Cannot set BootNext\n"); |
| r = CMD_RET_FAILURE; |
| } |
| out: |
| return r; |
| } |
| |
| /** |
| * do_efi_boot_order() - manage UEFI BootOrder variable |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug "boot order" sub-command. |
| * Show order of UEFI load options, or change it in BootOrder variable. |
| * |
| * efidebug boot order [<id> ...] |
| */ |
| static int do_efi_boot_order(struct cmd_tbl *cmdtp, int flag, |
| int argc, char *const argv[]) |
| { |
| u16 *bootorder = NULL; |
| efi_uintn_t size; |
| int id, i; |
| char *endp; |
| efi_guid_t guid; |
| efi_status_t ret; |
| int r = CMD_RET_SUCCESS; |
| |
| if (argc == 1) |
| return show_efi_boot_order(); |
| |
| argc--; |
| argv++; |
| |
| size = argc * sizeof(u16); |
| bootorder = malloc(size); |
| if (!bootorder) |
| return CMD_RET_FAILURE; |
| |
| for (i = 0; i < argc; i++) { |
| id = (int)hextoul(argv[i], &endp); |
| if (*endp != '\0' || id > 0xffff) { |
| printf("invalid value: %s\n", argv[i]); |
| r = CMD_RET_FAILURE; |
| goto out; |
| } |
| |
| bootorder[i] = (u16)id; |
| } |
| |
| guid = efi_global_variable_guid; |
| ret = efi_set_variable_int(u"BootOrder", &guid, |
| EFI_VARIABLE_NON_VOLATILE | |
| EFI_VARIABLE_BOOTSERVICE_ACCESS | |
| EFI_VARIABLE_RUNTIME_ACCESS, |
| size, bootorder, true); |
| if (ret != EFI_SUCCESS) { |
| printf("Cannot set BootOrder\n"); |
| r = CMD_RET_FAILURE; |
| } |
| out: |
| free(bootorder); |
| |
| return r; |
| } |
| |
| static struct cmd_tbl cmd_efidebug_boot_sub[] = { |
| U_BOOT_CMD_MKENT(add, CONFIG_SYS_MAXARGS, 1, do_efi_boot_add, "", ""), |
| U_BOOT_CMD_MKENT(rm, CONFIG_SYS_MAXARGS, 1, do_efi_boot_rm, "", ""), |
| U_BOOT_CMD_MKENT(dump, CONFIG_SYS_MAXARGS, 1, do_efi_boot_dump, "", ""), |
| U_BOOT_CMD_MKENT(next, CONFIG_SYS_MAXARGS, 1, do_efi_boot_next, "", ""), |
| U_BOOT_CMD_MKENT(order, CONFIG_SYS_MAXARGS, 1, do_efi_boot_order, |
| "", ""), |
| }; |
| |
| /** |
| * do_efi_boot_opt() - manage UEFI load options |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, |
| * CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug "boot" sub-command. |
| */ |
| static int do_efi_boot_opt(struct cmd_tbl *cmdtp, int flag, |
| int argc, char *const argv[]) |
| { |
| struct cmd_tbl *cp; |
| |
| if (argc < 2) |
| return CMD_RET_USAGE; |
| |
| argc--; argv++; |
| |
| cp = find_cmd_tbl(argv[0], cmd_efidebug_boot_sub, |
| ARRAY_SIZE(cmd_efidebug_boot_sub)); |
| if (!cp) |
| return CMD_RET_USAGE; |
| |
| return cp->cmd(cmdtp, flag, argc, argv); |
| } |
| |
| /** |
| * do_efi_test_bootmgr() - run simple bootmgr for test |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, |
| * CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug "test bootmgr" sub-command. |
| * Run simple bootmgr for test. |
| * |
| * efidebug test bootmgr |
| */ |
| static __maybe_unused int do_efi_test_bootmgr(struct cmd_tbl *cmdtp, int flag, |
| int argc, char * const argv[]) |
| { |
| efi_handle_t image; |
| efi_uintn_t exit_data_size = 0; |
| u16 *exit_data = NULL; |
| efi_status_t ret; |
| void *load_options = NULL; |
| |
| ret = efi_bootmgr_load(&image, &load_options); |
| printf("efi_bootmgr_load() returned: %ld\n", ret & ~EFI_ERROR_MASK); |
| if (ret != EFI_SUCCESS) |
| return CMD_RET_SUCCESS; |
| |
| /* We call efi_start_image() even if error for test purpose. */ |
| ret = EFI_CALL(efi_start_image(image, &exit_data_size, &exit_data)); |
| printf("efi_start_image() returned: %ld\n", ret & ~EFI_ERROR_MASK); |
| if (ret && exit_data) |
| efi_free_pool(exit_data); |
| |
| free(load_options); |
| return CMD_RET_SUCCESS; |
| } |
| |
| static struct cmd_tbl cmd_efidebug_test_sub[] = { |
| #ifdef CONFIG_EFI_BOOTMGR |
| U_BOOT_CMD_MKENT(bootmgr, CONFIG_SYS_MAXARGS, 1, do_efi_test_bootmgr, |
| "", ""), |
| #endif |
| }; |
| |
| /** |
| * do_efi_test() - manage UEFI load options |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, |
| * CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug "test" sub-command. |
| */ |
| static int do_efi_test(struct cmd_tbl *cmdtp, int flag, |
| int argc, char * const argv[]) |
| { |
| struct cmd_tbl *cp; |
| |
| if (argc < 2) |
| return CMD_RET_USAGE; |
| |
| argc--; argv++; |
| |
| cp = find_cmd_tbl(argv[0], cmd_efidebug_test_sub, |
| ARRAY_SIZE(cmd_efidebug_test_sub)); |
| if (!cp) |
| return CMD_RET_USAGE; |
| |
| return cp->cmd(cmdtp, flag, argc, argv); |
| } |
| |
| /** |
| * do_efi_query_info() - QueryVariableInfo EFI service |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, |
| * CMD_RET_USAGE or CMD_RET_FAILURE on failure |
| * |
| * Implement efidebug "test" sub-command. |
| */ |
| |
| static int do_efi_query_info(struct cmd_tbl *cmdtp, int flag, |
| int argc, char * const argv[]) |
| { |
| efi_status_t ret; |
| u32 attr = 0; |
| u64 max_variable_storage_size; |
| u64 remain_variable_storage_size; |
| u64 max_variable_size; |
| int i; |
| |
| for (i = 1; i < argc; i++) { |
| if (!strcmp(argv[i], "-bs")) |
| attr |= EFI_VARIABLE_BOOTSERVICE_ACCESS; |
| else if (!strcmp(argv[i], "-rt")) |
| attr |= EFI_VARIABLE_RUNTIME_ACCESS; |
| else if (!strcmp(argv[i], "-nv")) |
| attr |= EFI_VARIABLE_NON_VOLATILE; |
| else if (!strcmp(argv[i], "-at")) |
| attr |= |
| EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS; |
| } |
| |
| ret = efi_query_variable_info_int(attr, &max_variable_storage_size, |
| &remain_variable_storage_size, |
| &max_variable_size); |
| if (ret != EFI_SUCCESS) { |
| printf("Error: Cannot query UEFI variables, r = %lu\n", |
| ret & ~EFI_ERROR_MASK); |
| return CMD_RET_FAILURE; |
| } |
| |
| printf("Max storage size %llu\n", max_variable_storage_size); |
| printf("Remaining storage size %llu\n", remain_variable_storage_size); |
| printf("Max variable size %llu\n", max_variable_size); |
| |
| return CMD_RET_SUCCESS; |
| } |
| |
| static struct cmd_tbl cmd_efidebug_sub[] = { |
| U_BOOT_CMD_MKENT(boot, CONFIG_SYS_MAXARGS, 1, do_efi_boot_opt, "", ""), |
| #ifdef CONFIG_EFI_HAVE_CAPSULE_SUPPORT |
| U_BOOT_CMD_MKENT(capsule, CONFIG_SYS_MAXARGS, 1, do_efi_capsule, |
| "", ""), |
| #endif |
| U_BOOT_CMD_MKENT(drivers, CONFIG_SYS_MAXARGS, 1, do_efi_show_drivers, |
| "", ""), |
| U_BOOT_CMD_MKENT(dh, CONFIG_SYS_MAXARGS, 1, do_efi_show_handles, |
| "", ""), |
| U_BOOT_CMD_MKENT(images, CONFIG_SYS_MAXARGS, 1, do_efi_show_images, |
| "", ""), |
| U_BOOT_CMD_MKENT(memmap, CONFIG_SYS_MAXARGS, 1, do_efi_show_memmap, |
| "", ""), |
| U_BOOT_CMD_MKENT(tables, CONFIG_SYS_MAXARGS, 1, do_efi_show_tables, |
| "", ""), |
| U_BOOT_CMD_MKENT(test, CONFIG_SYS_MAXARGS, 1, do_efi_test, |
| "", ""), |
| U_BOOT_CMD_MKENT(query, CONFIG_SYS_MAXARGS, 1, do_efi_query_info, |
| "", ""), |
| }; |
| |
| /** |
| * do_efidebug() - display and configure UEFI environment |
| * |
| * @cmdtp: Command table |
| * @flag: Command flag |
| * @argc: Number of arguments |
| * @argv: Argument array |
| * Return: CMD_RET_SUCCESS on success, |
| * CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure |
| * |
| * Implement efidebug command which allows us to display and |
| * configure UEFI environment. |
| */ |
| static int do_efidebug(struct cmd_tbl *cmdtp, int flag, |
| int argc, char *const argv[]) |
| { |
| struct cmd_tbl *cp; |
| efi_status_t r; |
| |
| if (argc < 2) |
| return CMD_RET_USAGE; |
| |
| argc--; argv++; |
| |
| /* Initialize UEFI drivers */ |
| r = efi_init_obj_list(); |
| if (r != EFI_SUCCESS) { |
| printf("Error: Cannot initialize UEFI sub-system, r = %lu\n", |
| r & ~EFI_ERROR_MASK); |
| return CMD_RET_FAILURE; |
| } |
| |
| cp = find_cmd_tbl(argv[0], cmd_efidebug_sub, |
| ARRAY_SIZE(cmd_efidebug_sub)); |
| if (!cp) |
| return CMD_RET_USAGE; |
| |
| return cp->cmd(cmdtp, flag, argc, argv); |
| } |
| |
| U_BOOT_LONGHELP(efidebug, |
| " - UEFI Shell-like interface to configure UEFI environment\n" |
| "\n" |
| "efidebug boot add - set UEFI BootXXXX variable\n" |
| " -b|-B <bootid> <label> <interface> <devnum>[:<part>] <file path>\n" |
| " -i|-I <interface> <devnum>[:<part>] <initrd file path>\n" |
| " (-b, -i for short form device path)\n" |
| #if (IS_ENABLED(CONFIG_EFI_HTTP_BOOT)) |
| " -u <bootid> <label> <uri>\n" |
| #endif |
| " -s '<optional data>'\n" |
| "efidebug boot rm <bootid#1> [<bootid#2> [<bootid#3> [...]]]\n" |
| " - delete UEFI BootXXXX variables\n" |
| "efidebug boot dump\n" |
| " - dump all UEFI BootXXXX variables\n" |
| "efidebug boot next <bootid>\n" |
| " - set UEFI BootNext variable\n" |
| "efidebug boot order [<bootid#1> [<bootid#2> [<bootid#3> [...]]]]\n" |
| " - set/show UEFI boot order\n" |
| "\n" |
| #ifdef CONFIG_EFI_HAVE_CAPSULE_SUPPORT |
| "efidebug capsule update [-v] <capsule address>\n" |
| " - process a capsule\n" |
| "efidebug capsule disk-update\n" |
| " - update a capsule from disk\n" |
| "efidebug capsule show <capsule address>\n" |
| " - show capsule information\n" |
| "efidebug capsule result [<capsule result var>]\n" |
| " - show a capsule update result\n" |
| #ifdef CONFIG_EFI_ESRT |
| "efidebug capsule esrt\n" |
| " - print the ESRT\n" |
| #endif |
| "\n" |
| #endif |
| "efidebug drivers\n" |
| " - show UEFI drivers\n" |
| "efidebug dh\n" |
| " - show UEFI handles\n" |
| "efidebug images\n" |
| " - show loaded images\n" |
| "efidebug memmap\n" |
| " - show UEFI memory map\n" |
| "efidebug tables\n" |
| " - show UEFI configuration tables\n" |
| #ifdef CONFIG_EFI_BOOTMGR |
| "efidebug test bootmgr\n" |
| " - run simple bootmgr for test\n" |
| #endif |
| "efidebug query [-nv][-bs][-rt][-at]\n" |
| " - show size of UEFI variables store\n"); |
| |
| U_BOOT_CMD( |
| efidebug, CONFIG_SYS_MAXARGS, 0, do_efidebug, |
| "Configure UEFI environment", |
| efidebug_help_text |
| ); |