diff options
Diffstat (limited to 'cmd/efidebug.c')
| -rw-r--r-- | cmd/efidebug.c | 136 |
1 files changed, 97 insertions, 39 deletions
diff --git a/cmd/efidebug.c b/cmd/efidebug.c index db96682c5a..c4ac9dd634 100644 --- a/cmd/efidebug.c +++ b/cmd/efidebug.c @@ -11,6 +11,7 @@ #include <efi_loader.h> #include <environment.h> #include <exports.h> +#include <hexdump.h> #include <malloc.h> #include <search.h> #include <linux/ctype.h> @@ -185,7 +186,7 @@ static const struct { } guid_list[] = { { "Device Path", - DEVICE_PATH_GUID, + EFI_DEVICE_PATH_PROTOCOL_GUID, }, { "Device Path To Text", @@ -217,7 +218,7 @@ static const struct { }, { "Block IO", - BLOCK_IO_GUID, + EFI_BLOCK_IO_PROTOCOL_GUID, }, { "Simple File System", @@ -225,11 +226,31 @@ static const struct { }, { "Loaded Image", - LOADED_IMAGE_PROTOCOL_GUID, + EFI_LOADED_IMAGE_PROTOCOL_GUID, }, { - "GOP", - EFI_GOP_GUID, + "Graphics Output", + EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID, + }, + { + "HII String", + EFI_HII_STRING_PROTOCOL_GUID, + }, + { + "HII Database", + EFI_HII_DATABASE_PROTOCOL_GUID, + }, + { + "HII Config Routing", + EFI_HII_CONFIG_ROUTING_PROTOCOL_GUID, + }, + { + "Simple Network", + EFI_SIMPLE_NETWORK_PROTOCOL_GUID, + }, + { + "PXE Base Code", + EFI_PXE_BASE_CODE_PROTOCOL_GUID, }, }; @@ -525,7 +546,10 @@ static int do_efi_boot_add(cmd_tbl_t *cmdtp, int flag, + sizeof(struct efi_device_path); /* for END */ /* optional data */ - lo.optional_data = (u8 *)(argc == 6 ? "" : argv[6]); + if (argc < 6) + lo.optional_data = NULL; + else + lo.optional_data = (const u8 *)argv[6]; size = efi_serialize_load_option(&lo, (u8 **)&data); if (!size) { @@ -595,12 +619,13 @@ static int do_efi_boot_rm(cmd_tbl_t *cmdtp, int flag, /** * show_efi_boot_opt_data() - dump UEFI load option * - * @id: Load option number - * @data: Value of UEFI load option variable + * @id: load option number + * @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(int id, void *data) +static void show_efi_boot_opt_data(int id, void *data, size_t size) { struct efi_load_option lo; char *label, *p; @@ -618,7 +643,7 @@ static void show_efi_boot_opt_data(int id, void *data) utf16_utf8_strncpy(&p, lo.label, label_len16); printf("Boot%04X:\n", id); - printf("\tattributes: %c%c%c (0x%08x)\n", + printf(" attributes: %c%c%c (0x%08x)\n", /* ACTIVE */ lo.attributes & LOAD_OPTION_ACTIVE ? 'A' : '-', /* FORCE RECONNECT */ @@ -626,14 +651,16 @@ static void show_efi_boot_opt_data(int id, void *data) /* HIDDEN */ lo.attributes & LOAD_OPTION_HIDDEN ? 'H' : '-', lo.attributes); - printf("\tlabel: %s\n", label); + printf(" label: %s\n", label); dp_str = efi_dp_str(lo.file_path); - printf("\tfile_path: %ls\n", dp_str); + printf(" file_path: %ls\n", dp_str); efi_free_pool(dp_str); - printf("\tdata: %s\n", lo.optional_data); - + printf(" data:\n"); + print_hex_dump(" ", DUMP_PREFIX_OFFSET, 16, 1, + lo.optional_data, size + (u8 *)data - + (u8 *)lo.optional_data, true); free(label); } @@ -666,13 +693,24 @@ static void show_efi_boot_opt(int id) data)); } if (ret == EFI_SUCCESS) - show_efi_boot_opt_data(id, data); + show_efi_boot_opt_data(id, data, size); else if (ret == EFI_NOT_FOUND) printf("Boot%04X: not found\n", id); free(data); } +static int u16_tohex(u16 c) +{ + if (c >= '0' && c <= '9') + return c - '0'; + if (c >= 'A' && c <= 'F') + return c - 'A' + 10; + + /* not hexadecimal */ + return -1; +} + /** * show_efi_boot_dump() - dump all UEFI load options * @@ -689,38 +727,58 @@ static void show_efi_boot_opt(int id) static int do_efi_boot_dump(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { - char regex[256]; - char * const regexlist[] = {regex}; - char *variables = NULL, *boot, *value; - int len; - int id; + u16 *var_name16, *p; + efi_uintn_t buf_size, size; + efi_guid_t guid; + int id, i, digit; + efi_status_t ret; if (argc > 1) return CMD_RET_USAGE; - snprintf(regex, 256, "efi_.*-.*-.*-.*-.*_Boot[0-9A-F]+"); - - /* TODO: use GetNextVariableName? */ - len = hexport_r(&env_htab, '\n', H_MATCH_REGEX | H_MATCH_KEY, - &variables, 0, 1, regexlist); - - if (!len) - return CMD_RET_SUCCESS; - - if (len < 0) + buf_size = 128; + var_name16 = malloc(buf_size); + if (!var_name16) return CMD_RET_FAILURE; - boot = variables; - while (*boot) { - value = strstr(boot, "Boot") + 4; - id = (int)simple_strtoul(value, NULL, 16); - show_efi_boot_opt(id); - boot = strchr(boot, '\n'); - if (!*boot) + var_name16[0] = 0; + for (;;) { + size = buf_size; + ret = EFI_CALL(efi_get_next_variable_name(&size, var_name16, + &guid)); + if (ret == EFI_NOT_FOUND) break; - boot++; + 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_CALL(efi_get_next_variable_name(&size, + var_name16, + &guid)); + } + if (ret != EFI_SUCCESS) { + free(var_name16); + return CMD_RET_FAILURE; + } + + if (memcmp(var_name16, L"Boot", 8)) + continue; + + for (id = 0, i = 0; i < 4; i++) { + digit = u16_tohex(var_name16[4 + i]); + if (digit < 0) + break; + id = (id << 4) + digit; + } + if (i == 4 && !var_name16[8]) + show_efi_boot_opt(id); } - free(variables); + + free(var_name16); return CMD_RET_SUCCESS; } |