AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * EFI Firmware management protocol |
| 4 | * |
| 5 | * Copyright (c) 2020 Linaro Limited |
| 6 | * Author: AKASHI Takahiro |
| 7 | */ |
| 8 | |
| 9 | #include <common.h> |
| 10 | #include <charset.h> |
| 11 | #include <dfu.h> |
| 12 | #include <efi_loader.h> |
| 13 | #include <image.h> |
Sughosh Ganu | 7221c6e | 2020-12-30 19:27:05 +0530 | [diff] [blame] | 14 | #include <signatures.h> |
| 15 | |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 16 | #include <linux/list.h> |
| 17 | |
Sughosh Ganu | 7221c6e | 2020-12-30 19:27:05 +0530 | [diff] [blame] | 18 | #define FMP_PAYLOAD_HDR_SIGNATURE SIGNATURE_32('M', 'S', 'S', '1') |
| 19 | |
| 20 | /** |
| 21 | * struct fmp_payload_header - EDK2 header for the FMP payload |
| 22 | * |
| 23 | * This structure describes the header which is preprended to the |
| 24 | * FMP payload by the edk2 capsule generation scripts. |
| 25 | * |
| 26 | * @signature: Header signature used to identify the header |
| 27 | * @header_size: Size of the structure |
| 28 | * @fw_version: Firmware versions used |
| 29 | * @lowest_supported_version: Lowest supported version |
| 30 | */ |
| 31 | struct fmp_payload_header { |
| 32 | u32 signature; |
| 33 | u32 header_size; |
| 34 | u32 fw_version; |
| 35 | u32 lowest_supported_version; |
| 36 | }; |
| 37 | |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 38 | /* Place holder; not supported */ |
| 39 | static |
| 40 | efi_status_t EFIAPI efi_firmware_get_image_unsupported( |
| 41 | struct efi_firmware_management_protocol *this, |
| 42 | u8 image_index, |
| 43 | void *image, |
| 44 | efi_uintn_t *image_size) |
| 45 | { |
| 46 | EFI_ENTRY("%p %d %p %p\n", this, image_index, image, image_size); |
| 47 | |
| 48 | return EFI_EXIT(EFI_UNSUPPORTED); |
| 49 | } |
| 50 | |
| 51 | /* Place holder; not supported */ |
| 52 | static |
| 53 | efi_status_t EFIAPI efi_firmware_check_image_unsupported( |
| 54 | struct efi_firmware_management_protocol *this, |
| 55 | u8 image_index, |
| 56 | const void *image, |
| 57 | efi_uintn_t *image_size, |
| 58 | u32 *image_updatable) |
| 59 | { |
| 60 | EFI_ENTRY("%p %d %p %p %p\n", this, image_index, image, image_size, |
| 61 | image_updatable); |
| 62 | |
| 63 | return EFI_EXIT(EFI_UNSUPPORTED); |
| 64 | } |
| 65 | |
| 66 | /* Place holder; not supported */ |
| 67 | static |
| 68 | efi_status_t EFIAPI efi_firmware_get_package_info_unsupported( |
| 69 | struct efi_firmware_management_protocol *this, |
| 70 | u32 *package_version, |
| 71 | u16 **package_version_name, |
| 72 | u32 *package_version_name_maxlen, |
| 73 | u64 *attributes_supported, |
| 74 | u64 *attributes_setting) |
| 75 | { |
| 76 | EFI_ENTRY("%p %p %p %p %p %p\n", this, package_version, |
| 77 | package_version_name, package_version_name_maxlen, |
| 78 | attributes_supported, attributes_setting); |
| 79 | |
| 80 | return EFI_EXIT(EFI_UNSUPPORTED); |
| 81 | } |
| 82 | |
| 83 | /* Place holder; not supported */ |
| 84 | static |
| 85 | efi_status_t EFIAPI efi_firmware_set_package_info_unsupported( |
| 86 | struct efi_firmware_management_protocol *this, |
| 87 | const void *image, |
| 88 | efi_uintn_t *image_size, |
| 89 | const void *vendor_code, |
| 90 | u32 package_version, |
| 91 | const u16 *package_version_name) |
| 92 | { |
| 93 | EFI_ENTRY("%p %p %p %p %x %p\n", this, image, image_size, vendor_code, |
| 94 | package_version, package_version_name); |
| 95 | |
| 96 | return EFI_EXIT(EFI_UNSUPPORTED); |
| 97 | } |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 98 | |
| 99 | /** |
| 100 | * efi_get_dfu_info - return information about the current firmware image |
| 101 | * @this: Protocol instance |
| 102 | * @image_info_size: Size of @image_info |
| 103 | * @image_info: Image information |
| 104 | * @descriptor_version: Pointer to version number |
| 105 | * @descriptor_count: Pointer to number of descriptors |
| 106 | * @descriptor_size: Pointer to descriptor size |
| 107 | * package_version: Package version |
| 108 | * package_version_name: Package version's name |
| 109 | * image_type: Image type GUID |
| 110 | * |
| 111 | * Return information bout the current firmware image in @image_info. |
| 112 | * @image_info will consist of a number of descriptors. |
| 113 | * Each descriptor will be created based on "dfu_alt_info" variable. |
| 114 | * |
| 115 | * Return status code |
| 116 | */ |
| 117 | static efi_status_t efi_get_dfu_info( |
| 118 | efi_uintn_t *image_info_size, |
| 119 | struct efi_firmware_image_descriptor *image_info, |
| 120 | u32 *descriptor_version, |
| 121 | u8 *descriptor_count, |
| 122 | efi_uintn_t *descriptor_size, |
| 123 | u32 *package_version, |
| 124 | u16 **package_version_name, |
| 125 | const efi_guid_t *image_type) |
| 126 | { |
| 127 | struct dfu_entity *dfu; |
| 128 | size_t names_len, total_size; |
| 129 | int dfu_num, i; |
| 130 | u16 *name, *next; |
| 131 | |
| 132 | dfu_init_env_entities(NULL, NULL); |
| 133 | |
| 134 | names_len = 0; |
| 135 | dfu_num = 0; |
| 136 | list_for_each_entry(dfu, &dfu_list, list) { |
| 137 | names_len += (utf8_utf16_strlen(dfu->name) + 1) * 2; |
| 138 | dfu_num++; |
| 139 | } |
| 140 | if (!dfu_num) { |
| 141 | log_warning("Probably dfu_alt_info not defined\n"); |
| 142 | *image_info_size = 0; |
| 143 | dfu_free_entities(); |
| 144 | |
| 145 | return EFI_SUCCESS; |
| 146 | } |
| 147 | |
| 148 | total_size = sizeof(*image_info) * dfu_num + names_len; |
| 149 | /* |
| 150 | * we will assume that sizeof(*image_info) * dfu_name |
| 151 | * is, at least, a multiple of 2. So the start address for |
| 152 | * image_id_name would be aligned with 2 bytes. |
| 153 | */ |
| 154 | if (*image_info_size < total_size) { |
| 155 | *image_info_size = total_size; |
| 156 | dfu_free_entities(); |
| 157 | |
| 158 | return EFI_BUFFER_TOO_SMALL; |
| 159 | } |
| 160 | *image_info_size = total_size; |
| 161 | |
| 162 | *descriptor_version = EFI_FIRMWARE_IMAGE_DESCRIPTOR_VERSION; |
| 163 | *descriptor_count = dfu_num; |
| 164 | *descriptor_size = sizeof(*image_info); |
| 165 | *package_version = 0xffffffff; /* not supported */ |
| 166 | *package_version_name = NULL; /* not supported */ |
| 167 | |
| 168 | /* DFU alt number should correspond to image_index */ |
| 169 | i = 0; |
| 170 | /* Name area starts just after descriptors */ |
| 171 | name = (u16 *)((u8 *)image_info + sizeof(*image_info) * dfu_num); |
| 172 | next = name; |
| 173 | list_for_each_entry(dfu, &dfu_list, list) { |
| 174 | image_info[i].image_index = dfu->alt + 1; |
| 175 | image_info[i].image_type_id = *image_type; |
| 176 | image_info[i].image_id = dfu->alt; |
| 177 | |
| 178 | /* copy the DFU entity name */ |
| 179 | utf8_utf16_strcpy(&next, dfu->name); |
| 180 | image_info[i].image_id_name = name; |
| 181 | name = ++next; |
| 182 | |
| 183 | image_info[i].version = 0; /* not supported */ |
| 184 | image_info[i].version_name = NULL; /* not supported */ |
| 185 | image_info[i].size = 0; |
| 186 | image_info[i].attributes_supported = |
Sughosh Ganu | c9a821b | 2020-12-30 19:27:10 +0530 | [diff] [blame] | 187 | IMAGE_ATTRIBUTE_IMAGE_UPDATABLE | |
| 188 | IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED; |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 189 | image_info[i].attributes_setting = |
| 190 | IMAGE_ATTRIBUTE_IMAGE_UPDATABLE; |
Sughosh Ganu | c9a821b | 2020-12-30 19:27:10 +0530 | [diff] [blame] | 191 | |
| 192 | /* Check if the capsule authentication is enabled */ |
| 193 | if (env_get("capsule_authentication_enabled")) |
| 194 | image_info[0].attributes_setting |= |
| 195 | IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED; |
| 196 | |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 197 | image_info[i].lowest_supported_image_version = 0; |
| 198 | image_info[i].last_attempt_version = 0; |
| 199 | image_info[i].last_attempt_status = LAST_ATTEMPT_STATUS_SUCCESS; |
| 200 | image_info[i].hardware_instance = 1; |
| 201 | image_info[i].dependencies = NULL; |
| 202 | |
| 203 | i++; |
| 204 | } |
| 205 | |
| 206 | dfu_free_entities(); |
| 207 | |
| 208 | return EFI_SUCCESS; |
| 209 | } |
| 210 | |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 211 | #ifdef CONFIG_EFI_CAPSULE_FIRMWARE_FIT |
| 212 | /* |
| 213 | * This FIRMWARE_MANAGEMENT_PROTOCOL driver provides a firmware update |
| 214 | * method with existing FIT image format, and handles |
| 215 | * - multiple regions of firmware via DFU |
| 216 | * but doesn't support |
| 217 | * - versioning of firmware image |
| 218 | * - package information |
| 219 | */ |
| 220 | const efi_guid_t efi_firmware_image_type_uboot_fit = |
| 221 | EFI_FIRMWARE_IMAGE_TYPE_UBOOT_FIT_GUID; |
| 222 | |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 223 | /** |
| 224 | * efi_firmware_fit_get_image_info - return information about the current |
| 225 | * firmware image |
| 226 | * @this: Protocol instance |
| 227 | * @image_info_size: Size of @image_info |
| 228 | * @image_info: Image information |
| 229 | * @descriptor_version: Pointer to version number |
| 230 | * @descriptor_count: Pointer to number of descriptors |
| 231 | * @descriptor_size: Pointer to descriptor size |
| 232 | * package_version: Package version |
| 233 | * package_version_name: Package version's name |
| 234 | * |
| 235 | * Return information bout the current firmware image in @image_info. |
| 236 | * @image_info will consist of a number of descriptors. |
| 237 | * Each descriptor will be created based on "dfu_alt_info" variable. |
| 238 | * |
| 239 | * Return status code |
| 240 | */ |
| 241 | static |
| 242 | efi_status_t EFIAPI efi_firmware_fit_get_image_info( |
| 243 | struct efi_firmware_management_protocol *this, |
| 244 | efi_uintn_t *image_info_size, |
| 245 | struct efi_firmware_image_descriptor *image_info, |
| 246 | u32 *descriptor_version, |
| 247 | u8 *descriptor_count, |
| 248 | efi_uintn_t *descriptor_size, |
| 249 | u32 *package_version, |
| 250 | u16 **package_version_name) |
| 251 | { |
| 252 | efi_status_t ret; |
| 253 | |
| 254 | EFI_ENTRY("%p %p %p %p %p %p %p %p\n", this, |
| 255 | image_info_size, image_info, |
| 256 | descriptor_version, descriptor_count, descriptor_size, |
| 257 | package_version, package_version_name); |
| 258 | |
| 259 | if (!image_info_size) |
| 260 | return EFI_EXIT(EFI_INVALID_PARAMETER); |
| 261 | |
| 262 | if (*image_info_size && |
| 263 | (!image_info || !descriptor_version || !descriptor_count || |
| 264 | !descriptor_size || !package_version || !package_version_name)) |
| 265 | return EFI_EXIT(EFI_INVALID_PARAMETER); |
| 266 | |
| 267 | ret = efi_get_dfu_info(image_info_size, image_info, |
| 268 | descriptor_version, descriptor_count, |
| 269 | descriptor_size, |
| 270 | package_version, package_version_name, |
| 271 | &efi_firmware_image_type_uboot_fit); |
| 272 | |
| 273 | return EFI_EXIT(ret); |
| 274 | } |
| 275 | |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 276 | /** |
| 277 | * efi_firmware_fit_set_image - update the firmware image |
| 278 | * @this: Protocol instance |
| 279 | * @image_index: Image index number |
| 280 | * @image: New image |
| 281 | * @image_size: Size of new image |
| 282 | * @vendor_code: Vendor-specific update policy |
| 283 | * @progress: Function to report the progress of update |
| 284 | * @abort_reason: Pointer to string of abort reason |
| 285 | * |
| 286 | * Update the firmware to new image, using dfu. The new image should |
| 287 | * have FIT image format commonly used in U-Boot. |
| 288 | * @vendor_code, @progress and @abort_reason are not supported. |
| 289 | * |
| 290 | * Return: status code |
| 291 | */ |
| 292 | static |
| 293 | efi_status_t EFIAPI efi_firmware_fit_set_image( |
| 294 | struct efi_firmware_management_protocol *this, |
| 295 | u8 image_index, |
| 296 | const void *image, |
| 297 | efi_uintn_t image_size, |
| 298 | const void *vendor_code, |
| 299 | efi_status_t (*progress)(efi_uintn_t completion), |
| 300 | u16 **abort_reason) |
| 301 | { |
| 302 | EFI_ENTRY("%p %d %p %ld %p %p %p\n", this, image_index, image, |
| 303 | image_size, vendor_code, progress, abort_reason); |
| 304 | |
| 305 | if (!image || image_index != 1) |
| 306 | return EFI_EXIT(EFI_INVALID_PARAMETER); |
| 307 | |
| 308 | if (fit_update(image)) |
| 309 | return EFI_EXIT(EFI_DEVICE_ERROR); |
| 310 | |
| 311 | return EFI_EXIT(EFI_SUCCESS); |
| 312 | } |
| 313 | |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 314 | const struct efi_firmware_management_protocol efi_fmp_fit = { |
| 315 | .get_image_info = efi_firmware_fit_get_image_info, |
| 316 | .get_image = efi_firmware_get_image_unsupported, |
| 317 | .set_image = efi_firmware_fit_set_image, |
| 318 | .check_image = efi_firmware_check_image_unsupported, |
| 319 | .get_package_info = efi_firmware_get_package_info_unsupported, |
| 320 | .set_package_info = efi_firmware_set_package_info_unsupported, |
| 321 | }; |
| 322 | #endif /* CONFIG_EFI_CAPSULE_FIRMWARE_FIT */ |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 323 | |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 324 | #ifdef CONFIG_EFI_CAPSULE_FIRMWARE_RAW |
| 325 | /* |
| 326 | * This FIRMWARE_MANAGEMENT_PROTOCOL driver provides a firmware update |
| 327 | * method with raw data. |
| 328 | */ |
| 329 | const efi_guid_t efi_firmware_image_type_uboot_raw = |
| 330 | EFI_FIRMWARE_IMAGE_TYPE_UBOOT_RAW_GUID; |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 331 | |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 332 | /** |
| 333 | * efi_firmware_raw_get_image_info - return information about the current |
| 334 | firmware image |
| 335 | * @this: Protocol instance |
| 336 | * @image_info_size: Size of @image_info |
| 337 | * @image_info: Image information |
| 338 | * @descriptor_version: Pointer to version number |
| 339 | * @descriptor_count: Pointer to number of descriptors |
| 340 | * @descriptor_size: Pointer to descriptor size |
| 341 | * package_version: Package version |
| 342 | * package_version_name: Package version's name |
| 343 | * |
| 344 | * Return information bout the current firmware image in @image_info. |
| 345 | * @image_info will consist of a number of descriptors. |
| 346 | * Each descriptor will be created based on "dfu_alt_info" variable. |
| 347 | * |
| 348 | * Return status code |
| 349 | */ |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 350 | static |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 351 | efi_status_t EFIAPI efi_firmware_raw_get_image_info( |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 352 | struct efi_firmware_management_protocol *this, |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 353 | efi_uintn_t *image_info_size, |
| 354 | struct efi_firmware_image_descriptor *image_info, |
| 355 | u32 *descriptor_version, |
| 356 | u8 *descriptor_count, |
| 357 | efi_uintn_t *descriptor_size, |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 358 | u32 *package_version, |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 359 | u16 **package_version_name) |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 360 | { |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 361 | efi_status_t ret = EFI_SUCCESS; |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 362 | |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 363 | EFI_ENTRY("%p %p %p %p %p %p %p %p\n", this, |
| 364 | image_info_size, image_info, |
| 365 | descriptor_version, descriptor_count, descriptor_size, |
| 366 | package_version, package_version_name); |
| 367 | |
| 368 | if (!image_info_size) |
| 369 | return EFI_EXIT(EFI_INVALID_PARAMETER); |
| 370 | |
| 371 | if (*image_info_size && |
| 372 | (!image_info || !descriptor_version || !descriptor_count || |
| 373 | !descriptor_size || !package_version || !package_version_name)) |
| 374 | return EFI_EXIT(EFI_INVALID_PARAMETER); |
| 375 | |
| 376 | ret = efi_get_dfu_info(image_info_size, image_info, |
| 377 | descriptor_version, descriptor_count, |
| 378 | descriptor_size, |
| 379 | package_version, package_version_name, |
| 380 | &efi_firmware_image_type_uboot_raw); |
| 381 | |
| 382 | return EFI_EXIT(ret); |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 383 | } |
| 384 | |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 385 | /** |
| 386 | * efi_firmware_raw_set_image - update the firmware image |
| 387 | * @this: Protocol instance |
| 388 | * @image_index: Image index number |
| 389 | * @image: New image |
| 390 | * @image_size: Size of new image |
| 391 | * @vendor_code: Vendor-specific update policy |
| 392 | * @progress: Function to report the progress of update |
| 393 | * @abort_reason: Pointer to string of abort reason |
| 394 | * |
| 395 | * Update the firmware to new image, using dfu. The new image should |
| 396 | * be a single raw image. |
| 397 | * @vendor_code, @progress and @abort_reason are not supported. |
| 398 | * |
| 399 | * Return: status code |
| 400 | */ |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 401 | static |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 402 | efi_status_t EFIAPI efi_firmware_raw_set_image( |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 403 | struct efi_firmware_management_protocol *this, |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 404 | u8 image_index, |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 405 | const void *image, |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 406 | efi_uintn_t image_size, |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 407 | const void *vendor_code, |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 408 | efi_status_t (*progress)(efi_uintn_t completion), |
| 409 | u16 **abort_reason) |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 410 | { |
Sughosh Ganu | 7221c6e | 2020-12-30 19:27:05 +0530 | [diff] [blame] | 411 | u32 fmp_hdr_signature; |
| 412 | struct fmp_payload_header *header; |
Sughosh Ganu | c9a821b | 2020-12-30 19:27:10 +0530 | [diff] [blame] | 413 | void *capsule_payload; |
| 414 | efi_status_t status; |
| 415 | efi_uintn_t capsule_payload_size; |
Sughosh Ganu | 7221c6e | 2020-12-30 19:27:05 +0530 | [diff] [blame] | 416 | |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 417 | EFI_ENTRY("%p %d %p %ld %p %p %p\n", this, image_index, image, |
| 418 | image_size, vendor_code, progress, abort_reason); |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 419 | |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 420 | if (!image) |
| 421 | return EFI_EXIT(EFI_INVALID_PARAMETER); |
| 422 | |
Sughosh Ganu | c9a821b | 2020-12-30 19:27:10 +0530 | [diff] [blame] | 423 | /* Authenticate the capsule if authentication enabled */ |
| 424 | if (IS_ENABLED(CONFIG_EFI_CAPSULE_AUTHENTICATE) && |
| 425 | env_get("capsule_authentication_enabled")) { |
| 426 | capsule_payload = NULL; |
| 427 | capsule_payload_size = 0; |
| 428 | status = efi_capsule_authenticate(image, image_size, |
| 429 | &capsule_payload, |
| 430 | &capsule_payload_size); |
| 431 | |
| 432 | if (status == EFI_SECURITY_VIOLATION) { |
| 433 | printf("Capsule authentication check failed. Aborting update\n"); |
| 434 | return EFI_EXIT(status); |
| 435 | } else if (status != EFI_SUCCESS) { |
| 436 | return EFI_EXIT(status); |
| 437 | } |
| 438 | |
| 439 | debug("Capsule authentication successfull\n"); |
| 440 | image = capsule_payload; |
| 441 | image_size = capsule_payload_size; |
| 442 | } else { |
| 443 | debug("Capsule authentication disabled. "); |
| 444 | debug("Updating capsule without authenticating.\n"); |
| 445 | } |
| 446 | |
Sughosh Ganu | 7221c6e | 2020-12-30 19:27:05 +0530 | [diff] [blame] | 447 | fmp_hdr_signature = FMP_PAYLOAD_HDR_SIGNATURE; |
| 448 | header = (void *)image; |
| 449 | |
| 450 | if (!memcmp(&header->signature, &fmp_hdr_signature, |
| 451 | sizeof(fmp_hdr_signature))) { |
| 452 | /* |
| 453 | * When building the capsule with the scripts in |
| 454 | * edk2, a FMP header is inserted above the capsule |
| 455 | * payload. Compensate for this header to get the |
| 456 | * actual payload that is to be updated. |
| 457 | */ |
| 458 | image += header->header_size; |
| 459 | image_size -= header->header_size; |
| 460 | |
| 461 | } |
| 462 | |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 463 | if (dfu_write_by_alt(image_index - 1, (void *)image, image_size, |
| 464 | NULL, NULL)) |
| 465 | return EFI_EXIT(EFI_DEVICE_ERROR); |
| 466 | |
| 467 | return EFI_EXIT(EFI_SUCCESS); |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 468 | } |
| 469 | |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 470 | const struct efi_firmware_management_protocol efi_fmp_raw = { |
| 471 | .get_image_info = efi_firmware_raw_get_image_info, |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 472 | .get_image = efi_firmware_get_image_unsupported, |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 473 | .set_image = efi_firmware_raw_set_image, |
AKASHI Takahiro | f4818e6 | 2020-11-30 18:12:12 +0900 | [diff] [blame] | 474 | .check_image = efi_firmware_check_image_unsupported, |
| 475 | .get_package_info = efi_firmware_get_package_info_unsupported, |
| 476 | .set_package_info = efi_firmware_set_package_info_unsupported, |
| 477 | }; |
AKASHI Takahiro | 7ff3f3c | 2020-11-17 09:28:00 +0900 | [diff] [blame] | 478 | #endif /* CONFIG_EFI_CAPSULE_FIRMWARE_RAW */ |