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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. * */ /**@file * * @defgroup nrf_dfu_validation Validation * @{ * @ingroup nrf_dfu */ #ifndef __NRF_DFU_VALIDATION_H #define __NRF_DFU_VALIDATION_H #include "stdint.h" #include "sdk_errors.h" #include "dfu-cc.pb.h" #include "nrf_dfu_handling_error.h" /** * @brief Function for module initialization. * * Function checks if there is a valid init packet in DFU settings written in flash. */ void nrf_dfu_validation_init(void); /** * @brief Function called on reception of init command creation request. * * @param[in] size Size of incoming init packet. * * @return Operation result. See @ref nrf_dfu_result_t */ nrf_dfu_result_t nrf_dfu_validation_init_cmd_create(uint32_t size); /** * @brief Function called on reception of fragment of init command. * * @param[in] p_data Init command fragment. * @param[in] length Init command fragment size. * * @return Operation result. See @ref nrf_dfu_result_t */ nrf_dfu_result_t nrf_dfu_validation_init_cmd_append(uint8_t const * p_data, uint32_t length); /** * @brief Function for getting init command status. * * @param[out] p_offset Current offset. * @param[out] p_crc Current CRC. * @param[out] p_max_size Maximum size of init command. */ void nrf_dfu_validation_init_cmd_status_get(uint32_t * p_offset, uint32_t * p_crc, uint32_t * p_max_size); /** * @brief Function for inquiring whether a valid init command has been received. * * @return true if there is a valid init command. This can be true at boot time * if the device was reset during a DFU operation. */ bool nrf_dfu_validation_init_cmd_present(void); /** * @brief Function for validating init command and retrieving the address and length of the firmware. * * If init command is successfully validated Bank 1 details are written to out parameters. * * Until @ref nrf_dfu_validation_init_cmd_create is called, this function can be called * again after the first time without side effects to retrieve address and length. * * @param[out] p_dst_data_addr Start address of received data, if validation is successful. * @param[out] p_data_len Expected length of received data, if validation is successful. * * @return Operation result. See @ref nrf_dfu_result_t */ nrf_dfu_result_t nrf_dfu_validation_init_cmd_execute(uint32_t * p_dst_data_addr, uint32_t * p_data_len); /** * @brief Function for validating the init command. * * @return Operation result. See @ref nrf_dfu_result_t. */ nrf_dfu_result_t nrf_dfu_validation_prevalidate(void); /** * @brief Function for validating the firmware for booting. * * @param[in] p_validation Validation parameters. * @param[in] data_addr Start address of the firmware. * @param[in] data_len Length of the firmware. * * @return Whether the firmware is valid for booting. */ bool nrf_dfu_validation_boot_validate(boot_validation_t const * p_validation, uint32_t data_addr, uint32_t data_len); /** * @brief Function for postvalidating the update after all data is received. * * @param[in] data_addr Start address of the received data. * @param[in] data_len Length of the received data. * * @return Operation result. See @ref nrf_dfu_result_t. */ nrf_dfu_result_t nrf_dfu_validation_post_data_execute(uint32_t data_addr, uint32_t data_len); /** * @brief Function for preparing the update for activation. * * This function is called after a reset, after all data is received. This function also runs * @ref nrf_dfu_validation_post_data_execute internally. If this succeeds, the update is * activated by the activation machinery in the bootloader the next time it runs. * * @note The caller must have permissions to edit the relevant entries in the settings. * * @param[in] data_addr Start address of the received data. * @param[in] data_len Length of the received data. * * @return Operation result. See @ref nrf_dfu_result_t */ nrf_dfu_result_t nrf_dfu_validation_activation_prepare(uint32_t data_addr, uint32_t data_len); /** * @brief Function to execute on a validated external app. * * @details This function is called once all data is received with the parameter * @p is_boot set to false. The function is called during bootup with the parameter * set to true. * * * * @note This function requires that @ref NRF_DFU_SUPPORTS_EXTERNAL_APP is set to 1. * It is up to the user to implement this function. * * @warning Parameter @p is_trusted must be used to ensure that no loss of security of process can happen. * This parameter should only be set if the function is called after a root-of-trust * reset on the device. * * Parameter @p is_trusted can be used for the following: * - Ensuring that an external application is run only once (after root-of-trust). * - Ensuring that a bank flag or any other flash access can only happen after root-of-trust. * - Ensuring that the device reaches the correct state after a power failure on the device. * * @param[in] p_init Init command for the firmware upgrade. * @param[in] is_trusted Must be set to true if this is called after root-of-trust boot. * Must be set to false if this is called from DFU mode or background * DFU operation. * * @return Operation result. see @ref nrf_dfu_result_t. */ nrf_dfu_result_t nrf_dfu_validation_post_external_app_execute(dfu_init_command_t const * p_init, bool is_trusted); /** * @brief Function to check if there is a valid external app in Bank 1. * * @returns True if valid external app, otherwise false. */ bool nrf_dfu_validation_valid_external_app(void); #endif //__NRF_DFU_VALIDATION_H /** @} */