/** * Copyright (c) 2015 - 2019, 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. * */ #ifndef SECURITY_MANAGER_H__ #define SECURITY_MANAGER_H__ #include #include "sdk_errors.h" #include "ble.h" #include "ble_gap.h" #include "peer_manager_types.h" #include "security_dispatcher.h" #ifdef __cplusplus extern "C" { #endif /** * @cond NO_DOXYGEN * @defgroup security_manager Security Manager * @ingroup peer_manager * @{ * @brief An internal module of @ref peer_manager. A module for streamlining pairing, bonding, and * encryption, including flash storage of shared data. */ /**@brief Function for initializing the Security Manager module. * * @retval NRF_SUCCESS If initialization was successful. * @retval NRF_ERROR_INTERNAL If an unexpected error occurred. */ ret_code_t sm_init(void); /**@brief Function for dispatching SoftDevice events to the Security Manager module. * * @param[in] ble_evt The SoftDevice event. */ void sm_ble_evt_handler(ble_evt_t const * ble_evt); /**@brief Function for providing pairing and bonding parameters to use for pairing procedures. * * @details Until this is called, all bonding procedures initiated by the peer will be rejected. * This function can be called multiple times, even with NULL p_sec_params, in which case * it will go back to rejecting all procedures. * * @param[in] p_sec_params The security parameters to use for this link. Can be NULL to reject * all pairing procedures. * * @retval NRF_SUCCESS Success. * @retval NRF_ERROR_INVALID_PARAM Invalid combination of parameters. */ ret_code_t sm_sec_params_set(ble_gap_sec_params_t * p_sec_params); /**@brief Function for providing security configuration for a link. * * @details This function is optional, and must be called in reply to a @ref * PM_EVT_CONN_SEC_CONFIG_REQ event, before the Peer Manager event handler returns. If it * is not called in time, a default configuration is used. See @ref pm_conn_sec_config_t * for the value of the default. * * @param[in] conn_handle The connection to set the configuration for. * @param[in] p_conn_sec_config The configuration. */ void sm_conn_sec_config_reply(uint16_t conn_handle, pm_conn_sec_config_t * p_conn_sec_config); /**@brief Function for providing security parameters for a link. * * @details This function is optional, and must be called in reply to a @ref * PM_EVT_CONN_SEC_PARAMS_REQ event, before the Security Manager event handler returns. If * it is not called in time, the parameters given in @ref sm_sec_params_set are used. See * @ref pm_conn_sec_config_t for the value of the default. * * @param[in] conn_handle The connection to set the parameters for. * @param[in] p_sec_params The parameters. If NULL, the security procedure is rejected. * @param[in] p_context The context found in the request event that this function replies to. * * @retval NRF_SUCCESS Successful reply. * @retval NRF_ERROR_NULL p_context was null. * @retval NRF_ERROR_INVALID_PARAM Value of p_sec_params was invalid. * @retval NRF_ERROR_INVALID_STATE This module is not initialized. */ ret_code_t sm_sec_params_reply(uint16_t conn_handle, ble_gap_sec_params_t * p_sec_params, void const * p_context); /**@brief Experimental function for specifying the public key to use for LESC operations. * * @details This function can be called multiple times. The specified public key will be used for * all subsequent LESC (LE Secure Connections) operations until the next time this function * is called. * * @note The key must continue to reside in application memory as it is not copied by Peer Manager. * * @param[in] p_public_key The public key to use for all subsequent LESC operations. * * @retval NRF_SUCCESS Pairing initiated successfully. * @retval NRF_ERROR_INVALID_STATE This module is not initialized. */ ret_code_t sm_lesc_public_key_set(ble_gap_lesc_p256_pk_t * p_public_key); /**@brief Function for initiating security on the link, with the specified parameters. * * @note If the connection is a peripheral connection, this will send a security request to the * master, but the master is not obligated to initiate pairing or encryption in response. * @note If the connection is a central connection and a key is available, the parameters will be * used to determine whether to re-pair or to encrypt using the existing key. If no key is * available, pairing will be started. * * @param[in] conn_handle Handle of the connection to initiate pairing on. * @param[in] force_repairing Whether to force a pairing procedure to happen regardless of whether * an encryption key already exists. This argument is only relevant for * the central role. Recommended value: false * * @retval NRF_SUCCESS Success. * @retval NRF_ERROR_TIMEOUT There has been an SMP timeout, so no more SMP operations * can be performed on this link. * @retval BLE_ERROR_INVALID_CONN_HANDLE Invalid connection handle. * @retval NRF_ERROR_INVALID_DATA Peer is bonded, but no LTK was found, and repairing was * not requested. * @retval NRF_ERROR_NOT_FOUND Security parameters have not been set. * @retval NRF_ERROR_INVALID_STATE A security procedure is already in progress on the link, * or the link is disconnecting. * @retval NRF_ERROR_INTERNAL An unexpected error occurred. */ ret_code_t sm_link_secure(uint16_t conn_handle, bool force_repairing); /** @} * @endcond */ #ifdef __cplusplus } #endif #endif /* SECURITY_MANAGER_H__ */