diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/bootloader/dfu/nrf_dfu_validation.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/bootloader/dfu/nrf_dfu_validation.c | 745 |
1 files changed, 745 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/bootloader/dfu/nrf_dfu_validation.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/bootloader/dfu/nrf_dfu_validation.c new file mode 100644 index 0000000..566702d --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/bootloader/dfu/nrf_dfu_validation.c @@ -0,0 +1,745 @@ +/** + * Copyright (c) 2017 - 2018, Nordic Semiconductor ASA + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form, except as embedded into a Nordic + * Semiconductor ASA integrated circuit in a product or a software update for + * such product, must reproduce the above copyright notice, this list of + * conditions and the following disclaimer in the documentation and/or other + * materials provided with the distribution. + * + * 3. Neither the name of Nordic Semiconductor ASA nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * 4. This software, with or without modification, must only be used with a + * Nordic Semiconductor ASA integrated circuit. + * + * 5. Any software provided in binary form under this license must not be reverse + * engineered, decompiled, modified and/or disassembled. + * + * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ +#include <stdbool.h> +#include "nrf_dfu_types.h" +#include "nrf_dfu_settings.h" +#include "nrf_dfu_utils.h" +#include "nrf_dfu_flash.h" +#include "nrf_bootloader_info.h" +#include "pb.h" +#include "pb_common.h" +#include "pb_decode.h" +#include "dfu-cc.pb.h" +#include "crc32.h" +#include "nrf_crypto.h" +#include "nrf_assert.h" +#include "nrf_dfu_validation.h" +#include "nrf_dfu_ver_validation.h" + +#define NRF_LOG_MODULE_NAME nrf_dfu_validation +#include "nrf_log.h" +#include "nrf_log_ctrl.h" +NRF_LOG_MODULE_REGISTER(); + + +#ifndef NRF_DFU_DEBUG +#ifdef NRF_DFU_DEBUG_VERSION +#define NRF_DFU_DEBUG 1 +#else +#define NRF_DFU_DEBUG 0 +#endif +#endif + +#ifndef DFU_REQUIRES_SOFTDEVICE +#ifndef BLE_STACK_SUPPORT_REQD +#define DFU_REQUIRES_SOFTDEVICE 0 +#else +#define DFU_REQUIRES_SOFTDEVICE 1 +#endif +#endif + +#define EXT_ERR(err) (nrf_dfu_result_t)((uint32_t)NRF_DFU_RES_CODE_EXT_ERROR + (uint32_t)err) + +/* Whether a complete init command has been received and prevalidated, but the firmware + * is not yet fully transferred. This value will also be correct after reset. + */ +static bool m_valid_init_cmd_present = false; +static dfu_packet_t m_packet = DFU_PACKET_INIT_DEFAULT; +static uint8_t* m_init_packet_data_ptr = 0; +static uint32_t m_init_packet_data_len = 0; +static pb_istream_t m_pb_stream; + +static nrf_crypto_ecdsa_verify_context_t m_verify_context = {0}; + +static nrf_crypto_hash_context_t m_hash_context = {0}; + + +__ALIGN(4) extern const uint8_t pk[64]; + +/** @brief Value length structure holding the public key. + * + * @details The pk value pointed to is the public key present in dfu_public_key.c + */ +static nrf_crypto_ecc_public_key_t m_public_key; + +/** @brief Structure to hold a signature + */ +static nrf_crypto_ecdsa_secp256r1_signature_t m_signature; + +/** @brief Structure to hold the hash for the init packet + */ +static nrf_crypto_hash_sha256_digest_t m_init_packet_hash; + +/** @brief Structure to hold the hash for the firmware image + */ +static nrf_crypto_hash_sha256_digest_t m_fw_hash; + + +static void pb_decoding_callback(pb_istream_t *str, uint32_t tag, pb_wire_type_t wire_type, void *iter) +{ + pb_field_iter_t* p_iter = (pb_field_iter_t *) iter; + + // match the beginning of the init command + if (p_iter->pos->ptr == &dfu_init_command_fields[0]) + { + uint8_t * ptr = (uint8_t *)str->state; + uint32_t size = str->bytes_left; + + // remove tag byte + ptr++; + size--; + + // store the info in init_packet_data + m_init_packet_data_ptr = ptr; + m_init_packet_data_len = size; + + NRF_LOG_DEBUG("PB: Init packet data len: %d", size); + } +} + +/** @brief Function for decoding byte stream into variable. + * + * @retval true If the stored init command was successfully decoded. + * @retval false If there was no stored init command, or the decoding failed. + */ +static bool stored_init_cmd_decode(void) +{ + m_pb_stream = pb_istream_from_buffer(s_dfu_settings.init_command, + s_dfu_settings.progress.command_size); + + // Attach our callback to follow the field decoding + m_pb_stream.decoding_callback = pb_decoding_callback; + + m_init_packet_data_ptr = NULL; + m_init_packet_data_len = 0; + + if (!pb_decode(&m_pb_stream, dfu_packet_fields, &m_packet)) + { + NRF_LOG_ERROR("Handler: Invalid protocol buffer m_pb_stream"); + return false; + } + + return true; +} + + +void nrf_dfu_validation_init(void) +{ + ret_code_t err_code; + + // If the command is stored to flash, init command was valid. + if ( (s_dfu_settings.progress.command_size != 0) + && stored_init_cmd_decode() + && (s_dfu_settings.bank_1.image_size != 0)) + { + m_valid_init_cmd_present = true; + } + else + { + m_valid_init_cmd_present = false; + } + + err_code = nrf_crypto_init(); + ASSERT(err_code == NRF_SUCCESS); + UNUSED_PARAMETER(err_code); + + + err_code = nrf_crypto_ecc_public_key_from_raw(&g_nrf_crypto_ecc_secp256r1_curve_info, + &m_public_key, + pk, + sizeof(pk)); + ASSERT(err_code == NRF_SUCCESS); + UNUSED_PARAMETER(err_code); +} + + +nrf_dfu_result_t nrf_dfu_validation_init_cmd_create(uint32_t size) +{ + nrf_dfu_result_t ret_val = NRF_DFU_RES_CODE_SUCCESS; + if (size == 0) + { + ret_val = NRF_DFU_RES_CODE_INVALID_PARAMETER; + } + else if (size > INIT_COMMAND_MAX_SIZE) + { + ret_val = NRF_DFU_RES_CODE_INSUFFICIENT_RESOURCES; + } + else + { + // Set DFU to uninitialized. + m_valid_init_cmd_present = false; + + // Reset all progress. + s_dfu_settings.write_offset = 0; + memset(&s_dfu_settings.progress, 0x00, sizeof(dfu_progress_t)); + + // Set the init command size. + s_dfu_settings.progress.command_size = size; + } + return ret_val; +} + + +nrf_dfu_result_t nrf_dfu_validation_init_cmd_append(uint8_t const * p_data, uint32_t length) +{ + nrf_dfu_result_t ret_val = NRF_DFU_RES_CODE_SUCCESS; + if ((length + s_dfu_settings.progress.command_offset) > s_dfu_settings.progress.command_size) + { + NRF_LOG_ERROR("Init command larger than expected."); + ret_val = NRF_DFU_RES_CODE_INVALID_PARAMETER; + } + else + { + // Copy the received data to RAM, update offset and calculate CRC. + memcpy(&s_dfu_settings.init_command[s_dfu_settings.progress.command_offset], + p_data, + length); + + s_dfu_settings.progress.command_offset += length; + s_dfu_settings.progress.command_crc = crc32_compute(p_data, + length, + &s_dfu_settings.progress.command_crc); + } + return ret_val; +} + + +void nrf_dfu_validation_init_cmd_status_get(uint32_t * p_offset, + uint32_t * p_crc, + uint32_t * p_max_size) +{ + *p_offset = s_dfu_settings.progress.command_offset; + *p_crc = s_dfu_settings.progress.command_crc; + *p_max_size = INIT_COMMAND_MAX_SIZE; +} + + +bool nrf_dfu_validation_init_cmd_present(void) +{ + return m_valid_init_cmd_present; +} + + +// Function determines if init command signature is obligatory +static bool signature_required(dfu_fw_type_t fw_type_to_be_updated) +{ + bool result = true; + + if ((!DFU_REQUIRES_SOFTDEVICE && (fw_type_to_be_updated == DFU_FW_TYPE_SOFTDEVICE)) || + (fw_type_to_be_updated == DFU_FW_TYPE_APPLICATION)) + { + result = NRF_DFU_REQUIRE_SIGNED_APP_UPDATE; + } + return result; +} + + +// Function to perform signature check if required. +static nrf_dfu_result_t signature_check(dfu_fw_type_t fw_type, + dfu_signature_type_t signature_type, + dfu_signed_command_signature_t const * p_signature) +{ + ret_code_t err_code; + size_t hash_len = NRF_CRYPTO_HASH_SIZE_SHA256; + + if (!signature_required(fw_type)) + { + return NRF_DFU_RES_CODE_SUCCESS; + } + + NRF_LOG_INFO("Signature required. Checking signature.") + if (p_signature == NULL) + { + NRF_LOG_WARNING("No signature found."); + return EXT_ERR(NRF_DFU_EXT_ERROR_SIGNATURE_MISSING); + } + + if (signature_type != DFU_SIGNATURE_TYPE_ECDSA_P256_SHA256) + { + NRF_LOG_INFO("Invalid signature type"); + return EXT_ERR(NRF_DFU_EXT_ERROR_WRONG_SIGNATURE_TYPE); + } + + NRF_LOG_INFO("Calculating init packet hash (init packet len: %d)", m_init_packet_data_len); + err_code = nrf_crypto_hash_calculate(&m_hash_context, + &g_nrf_crypto_hash_sha256_info, + m_init_packet_data_ptr, + m_init_packet_data_len, + m_init_packet_hash, + &hash_len); + if (err_code != NRF_SUCCESS) + { + return NRF_DFU_RES_CODE_OPERATION_FAILED; + } + + if (sizeof(m_signature) != p_signature->size) + { + return NRF_DFU_RES_CODE_OPERATION_FAILED; + } + + // Prepare the signature received over the air. + memcpy(m_signature, p_signature->bytes, p_signature->size); + + // calculate the signature + NRF_LOG_INFO("Verify signature"); + err_code = nrf_crypto_ecdsa_verify(&m_verify_context, + &m_public_key, + m_init_packet_hash, + hash_len, + m_signature, + sizeof(m_signature)); + if (err_code != NRF_SUCCESS) + { + NRF_LOG_ERROR("Signature failed (err_code: 0x%x)", err_code); + NRF_LOG_DEBUG("Signature:"); + NRF_LOG_HEXDUMP_DEBUG(m_signature, sizeof(m_signature)); + NRF_LOG_DEBUG("Hash:"); + NRF_LOG_HEXDUMP_DEBUG(m_init_packet_hash, hash_len); + NRF_LOG_DEBUG("Public Key:"); + NRF_LOG_HEXDUMP_DEBUG(pk, sizeof(pk)); + NRF_LOG_FLUSH(); + + return NRF_DFU_RES_CODE_INVALID_OBJECT; + } + + NRF_LOG_INFO("Image verified"); + return NRF_DFU_RES_CODE_SUCCESS; +} + + +// Function to calculate the total size of the firmware(s) in the update. +static nrf_dfu_result_t update_data_size_get(dfu_init_command_t const * p_init, uint32_t * p_size) +{ + nrf_dfu_result_t ret_val = EXT_ERR(NRF_DFU_EXT_ERROR_INIT_COMMAND_INVALID); + uint32_t fw_sz = 0; + + if ((p_init->type == DFU_FW_TYPE_APPLICATION) && (p_init->has_app_size == true)) + { + fw_sz = p_init->app_size; + } + else + { + if ((p_init->type & DFU_FW_TYPE_SOFTDEVICE) && (p_init->has_sd_size == true)) + { + fw_sz = p_init->sd_size; + } + + if ((p_init->type & DFU_FW_TYPE_BOOTLOADER) && (p_init->has_bl_size == true)) + { + if (p_init->bl_size <= BOOTLOADER_SIZE) + { + fw_sz += p_init->bl_size; + } + else + { + NRF_LOG_ERROR("BL size (%d) over limit (%d)", p_init->bl_size, BOOTLOADER_SIZE); + fw_sz = 0; + ret_val = NRF_DFU_RES_CODE_INSUFFICIENT_RESOURCES; + } + } + } + + if (fw_sz) + { + *p_size = fw_sz; + ret_val = NRF_DFU_RES_CODE_SUCCESS; + } + else + { + NRF_LOG_ERROR("Init packet does not contain valid firmware size"); + } + + return ret_val; +} + + +/** + * @brief Function to check if single bank update should be used. + * + * @param new_fw_type Firmware type. + */ +static bool use_single_bank(dfu_fw_type_t new_fw_type) +{ + bool result = false; + + if (((new_fw_type == DFU_FW_TYPE_APPLICATION) || (new_fw_type == DFU_FW_TYPE_SOFTDEVICE)) && + NRF_DFU_SINGLE_BANK_APP_UPDATES) + { + result = true; + } + + return result; +} + + +// Function to determine if the new firmware needs a SoftDevice to be present. +static bool update_requires_softdevice(dfu_init_command_t const * p_init) +{ + return ((p_init->sd_req_count > 0) && (p_init->sd_req[0] != SD_REQ_APP_OVERWRITES_SD)); +} + + +// Function to determine if the SoftDevice can be removed during the update or not. +static bool keep_softdevice(dfu_init_command_t const * p_init) +{ + UNUSED_PARAMETER(p_init); // It's unused when DFU_REQUIRES_SOFTDEVICE is true. + return DFU_REQUIRES_SOFTDEVICE || update_requires_softdevice(p_init); +} + + +/**@brief Function to determine where to temporarily store the incoming firmware. + * This also checks whether the update will fit, and deletes existing + * firmware to make room for the new firmware. + * + * @param[in] p_init Init command. + * @param[in] fw_size The size of the incoming firmware. + * @param[out] p_addr The address at which to initially store the firmware. + * + * @retval NRF_DFU_RES_CODE_SUCCESS If the size check passed and + * an address was found. + * @retval NRF_DFU_RES_CODE_INSUFFICIENT_RESOURCES If the size check failed. + */ +static nrf_dfu_result_t update_data_addr_get(dfu_init_command_t const * p_init, + uint32_t fw_size, + uint32_t * p_addr) +{ + nrf_dfu_result_t ret_val = NRF_DFU_RES_CODE_SUCCESS; + ret_code_t err_code = nrf_dfu_cache_prepare(fw_size, + use_single_bank(p_init->type), + NRF_DFU_FORCE_DUAL_BANK_APP_UPDATES, + keep_softdevice(p_init)); + if (err_code != NRF_SUCCESS) + { + NRF_LOG_ERROR("Can't find room for update"); + ret_val = NRF_DFU_RES_CODE_INSUFFICIENT_RESOURCES; + } + else + { + *p_addr = nrf_dfu_bank1_start_addr(); + NRF_LOG_DEBUG("Write address set to 0x%08x", *p_addr); + } + return ret_val; +} + + +nrf_dfu_result_t nrf_dfu_validation_init_cmd_execute(uint32_t * p_dst_data_addr, + uint32_t * p_data_len) +{ + nrf_dfu_result_t ret_val = NRF_DFU_RES_CODE_SUCCESS; + + if (s_dfu_settings.progress.command_offset != s_dfu_settings.progress.command_size) + { + // The object wasn't the right (requested) size + NRF_LOG_ERROR("Execute with faulty offset"); + ret_val = NRF_DFU_RES_CODE_OPERATION_NOT_PERMITTED; + } + else if (m_valid_init_cmd_present) + { + *p_dst_data_addr = nrf_dfu_bank1_start_addr(); + *p_data_len = s_dfu_settings.bank_1.image_size; + ret_val = NRF_DFU_RES_CODE_SUCCESS; + } + else if (stored_init_cmd_decode() && + (m_packet.has_signed_command || m_packet.has_command)) + { + dfu_command_t const * p_command = &m_packet.command; + dfu_signature_type_t signature_type = (dfu_signature_type_t) 0; // Placeholder. + dfu_signed_command_signature_t * p_signature = NULL; + + *p_dst_data_addr = 0; + *p_data_len = 0; + + if (m_packet.has_signed_command) + { + p_command = &m_packet.signed_command.command; + signature_type = m_packet.signed_command.signature_type; + p_signature = &m_packet.signed_command.signature; + } + + // Validate signature. + ret_val = signature_check(p_command->init.type, signature_type, p_signature); + + // Validate versions + if (ret_val == NRF_DFU_RES_CODE_SUCCESS) + { + ret_val = nrf_dfu_ver_validation_check(&p_command->init); + if (ret_val == NRF_DFU_RES_CODE_SUCCESS) + { + m_valid_init_cmd_present = true; + } + } + + // Get size of binary + if (ret_val == NRF_DFU_RES_CODE_SUCCESS) + { + ret_val = update_data_size_get(&p_command->init, p_data_len); + } + + //Get address where to flash the binary + if (ret_val == NRF_DFU_RES_CODE_SUCCESS) + { + ret_val = update_data_addr_get(&p_command->init, *p_data_len, p_dst_data_addr); + } + } + else + { + NRF_LOG_ERROR("Failed to decode init packet"); + ret_val = NRF_DFU_RES_CODE_INVALID_OBJECT; + } + + return ret_val; +} + + +// Function to check the hash received in the init command against the received firmware. +static bool fw_hash_ok(dfu_init_command_t const * p_init, uint32_t fw_start_addr, uint32_t fw_size) +{ + ret_code_t err_code; + bool result = true; + size_t hash_len = NRF_CRYPTO_HASH_SIZE_SHA256; + + ASSERT(p_init != NULL); + + NRF_LOG_DEBUG("Hash verification. Firmware start address: 0x%x, size: 0x%x", fw_start_addr, fw_size); + err_code = nrf_crypto_hash_calculate(&m_hash_context, + &g_nrf_crypto_hash_sha256_info, + (uint8_t*)fw_start_addr, + fw_size, + m_fw_hash, + &hash_len); + + if (err_code != NRF_SUCCESS) + { + NRF_LOG_ERROR("Could not run hash verification (err_code 0x%x).", err_code); + result = false; + } + else if (memcmp(m_fw_hash, p_init->hash.hash.bytes, NRF_CRYPTO_HASH_SIZE_SHA256) != 0) + { + NRF_LOG_WARNING("Hash verification failed."); + NRF_LOG_DEBUG("Expected FW hash:") + NRF_LOG_HEXDUMP_DEBUG(p_init->hash.hash.bytes, NRF_CRYPTO_HASH_SIZE_SHA256); + NRF_LOG_DEBUG("Actual FW hash:") + NRF_LOG_HEXDUMP_DEBUG(m_fw_hash, NRF_CRYPTO_HASH_SIZE_SHA256); + NRF_LOG_FLUSH(); + + result = false; + } + + return result; +} + + +// Function to check if the update contains a SoftDevice and, if so, if it is of a different +// major version than the existing SoftDevice. +static bool is_major_softdevice_update(uint32_t new_sd_addr) +{ + // True if there is no SD right now, but there is a new one coming. This counts as a major update. + bool result = !SD_PRESENT && (SD_MAGIC_NUMBER_GET(new_sd_addr) == SD_MAGIC_NUMBER); + + if (SD_PRESENT && (SD_MAGIC_NUMBER_GET(new_sd_addr) == SD_MAGIC_NUMBER)) + { + // Both SoftDevices are present. + uint32_t current_SD_major = SD_MAJOR_VERSION_EXTRACT(SD_VERSION_GET(MBR_SIZE)); + uint32_t new_SD_major = SD_MAJOR_VERSION_EXTRACT(SD_VERSION_GET(new_sd_addr)); + + result = (current_SD_major != new_SD_major); + + NRF_LOG_INFO("SoftDevice update is a %s version update. Current: %d. New: %d.", + result ? "major" : "minor", + current_SD_major, + new_SD_major); + } + + return result; +} + + +/**@brief Validate the SoftDevice size and magic number in structure found at 0x2000 in received SoftDevice. + * + * @param[in] sd_start_addr Start address of received SoftDevice. + * @param[in] sd_size Size of received SoftDevice in bytes. + */ +static bool softdevice_info_ok(uint32_t sd_start_addr, uint32_t sd_size) +{ + bool result = true; + + if (SD_MAGIC_NUMBER_GET(sd_start_addr) != SD_MAGIC_NUMBER) + { + NRF_LOG_ERROR("The SoftDevice does not contain the magic number identifying it as a SoftDevice."); + result = false; + } + else if (SD_SIZE_GET(sd_start_addr) < ALIGN_TO_PAGE(sd_size + MBR_SIZE)) + { + // The size in the info struct should be rounded up to a page boundary + // and be larger than the actual size + the size of the MBR. + NRF_LOG_ERROR("The SoftDevice size in the info struct is too small compared with the size reported in the init command."); + result = false; + } + + return result; +} + + +static void postvalidate_app(dfu_init_command_t * p_init) +{ + s_dfu_settings.bank_1.bank_code = NRF_DFU_BANK_VALID_APP; + + NRF_LOG_DEBUG("Invalidating old application in bank 0."); + s_dfu_settings.bank_0.bank_code = NRF_DFU_BANK_INVALID; + + if (!DFU_REQUIRES_SOFTDEVICE && !update_requires_softdevice(p_init)) + { + // App does not need SD, so it should be placed where SD is. + nrf_dfu_softdevice_invalidate(); + } + + if (!NRF_DFU_DEBUG || + (NRF_DFU_DEBUG && (p_init->has_is_debug == false || p_init->is_debug == false))) + { + s_dfu_settings.app_version = p_init->fw_version; + } +} + + +// Function to check a received SoftDevice and/or Bootloader firmware +// before it is copied into place. +static bool postvalidate_sd_bl(dfu_init_command_t * p_init, + bool with_sd, + bool with_bl, + uint32_t start_addr) +{ + if (with_sd) + { + if (!softdevice_info_ok(start_addr, p_init->sd_size)) + { + return false; + } + + if (is_major_softdevice_update(start_addr)) + { + NRF_LOG_WARNING("Invalidating app because it is incompatible with the SoftDevice."); + if (DFU_REQUIRES_SOFTDEVICE && !with_bl) + { + NRF_LOG_ERROR("Major SD update but no BL. Abort to avoid incapacitating the BL."); + return false; + } + + // Invalidate app since it may not be compatible with new SD. + nrf_dfu_bank_invalidate(&s_dfu_settings.bank_0); + } + + // Mark the update as valid. + s_dfu_settings.bank_1.bank_code = with_bl ? NRF_DFU_BANK_VALID_SD_BL + : NRF_DFU_BANK_VALID_SD; + + s_dfu_settings.sd_size = p_init->sd_size; + } + else + { + s_dfu_settings.bank_1.bank_code = NRF_DFU_BANK_VALID_BL; + } + + + if (with_bl && + (!NRF_DFU_DEBUG || + (NRF_DFU_DEBUG && (p_init->has_is_debug == false || p_init->is_debug == false)))) + { + // If the update contains a bootloader, update the version. + // Unless the update is a debug packet. + s_dfu_settings.bootloader_version = p_init->fw_version; + } + + return true; +} + + +nrf_dfu_result_t nrf_dfu_validation_post_data_execute(uint32_t src_addr, uint32_t data_len) +{ + nrf_dfu_result_t ret_val = NRF_DFU_RES_CODE_SUCCESS; + dfu_init_command_t * p_init = m_packet.has_signed_command ? &m_packet.signed_command.command.init + : &m_packet.command.init; + + if (!fw_hash_ok(p_init, src_addr, data_len)) + { + ret_val = EXT_ERR(NRF_DFU_EXT_ERROR_VERIFICATION_FAILED); + } + else + { + if (p_init->type == DFU_FW_TYPE_APPLICATION) + { + postvalidate_app(p_init); + } + else + { + bool with_sd = p_init->type & DFU_FW_TYPE_SOFTDEVICE; + bool with_bl = p_init->type & DFU_FW_TYPE_BOOTLOADER; + + if (!postvalidate_sd_bl(p_init, with_sd, with_bl, src_addr)) + { + ret_val = NRF_DFU_RES_CODE_INVALID_OBJECT; + if (with_sd && !DFU_REQUIRES_SOFTDEVICE && + (src_addr == nrf_dfu_softdevice_start_address())) + { + nrf_dfu_softdevice_invalidate(); + } + } + } + } + + if (ret_val == NRF_DFU_RES_CODE_SUCCESS) + { + // Store CRC32 for image + s_dfu_settings.bank_1.image_crc = s_dfu_settings.progress.firmware_image_crc; + s_dfu_settings.bank_1.image_size = data_len; + } + else + { + nrf_dfu_bank_invalidate(&s_dfu_settings.bank_1); + } + + // Set the progress to zero and remove the last command + memset(&s_dfu_settings.progress, 0, sizeof(dfu_progress_t)); + memset(s_dfu_settings.init_command, 0xFF, DFU_SIGNED_COMMAND_SIZE); + + s_dfu_settings.write_offset = 0; + s_dfu_settings.progress.update_start_address = src_addr; + + return ret_val; +} |