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TARGET_NRF51_DONGLE/TOOLCHAIN_ARM_STD/security_manager.h@171:3a7713b1edbc, 2018-11-08 (annotated)

Committer:
AnnaBridge
Date:
Thu Nov 08 11:45:42 2018 +0000
Revision:
171:3a7713b1edbc
Parent:
TARGET_NRF51_DONGLE/TARGET_NORDIC/TARGET_NRF5x/TARGET_SDK_11/ble/peer_manager/security_manager.h@169:a7c7b631e539 
mbed library. Release version 164

Who changed what in which revision?

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AnnaBridge 143:86740a56073b 1 /*
AnnaBridge 143:86740a56073b 2 * Copyright (c) 2015 Nordic Semiconductor ASA
AnnaBridge 143:86740a56073b 3 * All rights reserved.
AnnaBridge 143:86740a56073b 4 *
AnnaBridge 143:86740a56073b 5 * Redistribution and use in source and binary forms, with or without modification,
AnnaBridge 143:86740a56073b 6 * are permitted provided that the following conditions are met:
AnnaBridge 143:86740a56073b 7 *
AnnaBridge 143:86740a56073b 8 * 1. Redistributions of source code must retain the above copyright notice, this list
AnnaBridge 143:86740a56073b 9 * of conditions and the following disclaimer.
AnnaBridge 143:86740a56073b 10 *
AnnaBridge 143:86740a56073b 11 * 2. Redistributions in binary form, except as embedded into a Nordic Semiconductor ASA
AnnaBridge 143:86740a56073b 12 * integrated circuit in a product or a software update for such product, must reproduce
AnnaBridge 143:86740a56073b 13 * the above copyright notice, this list of conditions and the following disclaimer in
AnnaBridge 143:86740a56073b 14 * the documentation and/or other materials provided with the distribution.
AnnaBridge 143:86740a56073b 15 *
AnnaBridge 143:86740a56073b 16 * 3. Neither the name of Nordic Semiconductor ASA nor the names of its contributors may be
AnnaBridge 143:86740a56073b 17 * used to endorse or promote products derived from this software without specific prior
AnnaBridge 143:86740a56073b 18 * written permission.
AnnaBridge 143:86740a56073b 19 *
AnnaBridge 143:86740a56073b 20 * 4. This software, with or without modification, must only be used with a
AnnaBridge 143:86740a56073b 21 * Nordic Semiconductor ASA integrated circuit.
AnnaBridge 143:86740a56073b 22 *
AnnaBridge 143:86740a56073b 23 * 5. Any software provided in binary or object form under this license must not be reverse
AnnaBridge 143:86740a56073b 24 * engineered, decompiled, modified and/or disassembled.
AnnaBridge 143:86740a56073b 25 *
AnnaBridge 143:86740a56073b 26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
AnnaBridge 143:86740a56073b 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
AnnaBridge 143:86740a56073b 28 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
AnnaBridge 143:86740a56073b 29 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
AnnaBridge 143:86740a56073b 30 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
AnnaBridge 143:86740a56073b 31 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
AnnaBridge 143:86740a56073b 32 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
AnnaBridge 143:86740a56073b 33 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
AnnaBridge 143:86740a56073b 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
AnnaBridge 143:86740a56073b 35 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AnnaBridge 143:86740a56073b 36 *
AnnaBridge 143:86740a56073b 37 */
AnnaBridge 143:86740a56073b 38
AnnaBridge 143:86740a56073b 39
AnnaBridge 143:86740a56073b 40
AnnaBridge 143:86740a56073b 41 #ifndef SECURITY_MANAGER_H__
AnnaBridge 143:86740a56073b 42 #define SECURITY_MANAGER_H__
AnnaBridge 143:86740a56073b 43
AnnaBridge 143:86740a56073b 44 #include <stdint.h>
AnnaBridge 143:86740a56073b 45 #include "sdk_errors.h"
AnnaBridge 143:86740a56073b 46 #include "nrf_ble.h"
AnnaBridge 143:86740a56073b 47 #include "nrf_ble_gap.h"
AnnaBridge 143:86740a56073b 48 #include "peer_manager_types.h"
AnnaBridge 143:86740a56073b 49 #include "security_dispatcher.h"
AnnaBridge 143:86740a56073b 50
AnnaBridge 143:86740a56073b 51
AnnaBridge 143:86740a56073b 52 /**
AnnaBridge 143:86740a56073b 53 * @cond NO_DOXYGEN
AnnaBridge 143:86740a56073b 54 * @defgroup security_manager Security Manager
AnnaBridge 143:86740a56073b 55 * @ingroup peer_manager
AnnaBridge 143:86740a56073b 56 * @{
AnnaBridge 143:86740a56073b 57 * @brief An internal module of @ref peer_manager. A module for streamlining pairing, bonding, and
AnnaBridge 143:86740a56073b 58 * encryption, including flash storage of shared data.
AnnaBridge 143:86740a56073b 59 */
AnnaBridge 143:86740a56073b 60
AnnaBridge 143:86740a56073b 61
AnnaBridge 143:86740a56073b 62 /**@brief Events that can come from the Security Manager module.
AnnaBridge 143:86740a56073b 63 */
AnnaBridge 143:86740a56073b 64 typedef enum
AnnaBridge 143:86740a56073b 65 {
AnnaBridge 143:86740a56073b 66 // SM_EVT_PARAMS_REQ = SMD_EVT_PARAMS_REQ, /**< Parameters are required for a pairing procedure on the specified connection. The user must provide them using @ref sm_sec_params_set or @ref sm_sec_params_reply (only this procedure, currently unimplemented). */
AnnaBridge 143:86740a56073b 67 SM_EVT_SLAVE_SECURITY_REQ = SMD_EVT_SLAVE_SECURITY_REQ, /**< The peer (peripheral) has requested link encryption, which has been enabled. */
AnnaBridge 143:86740a56073b 68 SM_EVT_SEC_PROCEDURE_START = SMD_EVT_SEC_PROCEDURE_START, /**< A security procedure has started. */
AnnaBridge 143:86740a56073b 69 SM_EVT_PAIRING_SUCCESS = SMD_EVT_PAIRING_SUCCESS, /**< A pairing procedure (and bonding if applicable) has completed with success. */
AnnaBridge 143:86740a56073b 70 SM_EVT_PAIRING_FAIL = SMD_EVT_PAIRING_FAIL, /**< A pairing procedure has failed which means no encryption and no bond could be established. */
AnnaBridge 143:86740a56073b 71 SM_EVT_LINK_ENCRYPTION_UPDATE = SMD_EVT_LINK_ENCRYPTION_UPDATE, /**< The security level of the link has been updated. The link is encrypted. */
AnnaBridge 143:86740a56073b 72 SM_EVT_LINK_ENCRYPTION_FAILED = SMD_EVT_LINK_ENCRYPTION_FAILED, /**< An attempt to start encryption on an unencrypted link failed because the peripheral did not have the correct keys. If the peer is the peripheral, the force_repairing flag should be set when reattempting @ref sm_link_secure. */
AnnaBridge 143:86740a56073b 73 SM_EVT_BONDING_INFO_STORED = SMD_EVT_BONDING_INFO_STORED, /**< Information exchanged during bonding with a peer has been stored persistently. */
AnnaBridge 143:86740a56073b 74 SM_EVT_ERROR_BONDING_INFO = SMD_EVT_ERROR_BONDING_INFO, /**< Information exchanged during bonding with a peer could not be stored persistently, because of an unexpected error. */
AnnaBridge 143:86740a56073b 75 SM_EVT_ERROR_UNEXPECTED = SMD_EVT_ERROR_UNEXPECTED, /**< An operation failed with an unexpected error. The error is provided. This is possibly a fatal error. */
AnnaBridge 143:86740a56073b 76 SM_EVT_ERROR_NO_MEM /*= SMD_EVT_ERROR_NO_MEM*/, /**< An operation failed because there was no available storage room in persistent storage. Please free up room and the operation will automatically continue after the next compression. */
AnnaBridge 143:86740a56073b 77 SM_EVT_ERROR_SMP_TIMEOUT, /**< An operation failed because there has been an SMP timeout on the link, which entails that no more security operations can be performed on it. */
AnnaBridge 143:86740a56073b 78 SM_EVT_CONN_SEC_CONFIG_REQ, /**< The peer (central) has requested pairing, but a bond already exists with that peer. Reply by calling @ref sm_conn_sec_config_reply before the event handler returns. If no reply is sent, a default is used. */
AnnaBridge 143:86740a56073b 79 } sm_evt_id_t;
AnnaBridge 143:86740a56073b 80
AnnaBridge 143:86740a56073b 81
AnnaBridge 143:86740a56073b 82 typedef struct
AnnaBridge 143:86740a56073b 83 {
AnnaBridge 143:86740a56073b 84 sm_evt_id_t evt_id;
AnnaBridge 143:86740a56073b 85 uint16_t conn_handle;
AnnaBridge 143:86740a56073b 86 smd_evt_params_t params;
AnnaBridge 143:86740a56073b 87 } sm_evt_t;
AnnaBridge 143:86740a56073b 88
AnnaBridge 143:86740a56073b 89
AnnaBridge 143:86740a56073b 90
AnnaBridge 143:86740a56073b 91 /**@brief Event handler for events from the Security Manager module.
AnnaBridge 143:86740a56073b 92 *
AnnaBridge 143:86740a56073b 93 * @param[in] event The event that has happened.
AnnaBridge 143:86740a56073b 94 * @param[in] conn_handle The connection handle the event pertains to.
AnnaBridge 143:86740a56073b 95 */
AnnaBridge 143:86740a56073b 96 typedef void (*sm_evt_handler_t)(sm_evt_t const * p_event);
AnnaBridge 143:86740a56073b 97
AnnaBridge 143:86740a56073b 98
AnnaBridge 143:86740a56073b 99 /**@brief Function for registering with the Security Manager module. This function also
AnnaBridge 143:86740a56073b 100 * initializes the module if uninitialized.
AnnaBridge 143:86740a56073b 101 *
AnnaBridge 143:86740a56073b 102 * @param[in] evt_handler Callback for events from the Security Manager module.
AnnaBridge 143:86740a56073b 103 *
AnnaBridge 143:86740a56073b 104 * @retval NRF_SUCCESS Registration was successful.
AnnaBridge 143:86740a56073b 105 * @retval NRF_ERROR_NO_MEM No more registrations possible.
AnnaBridge 143:86740a56073b 106 * @retval NRF_ERROR_NULL evt_handler was NULL.
AnnaBridge 143:86740a56073b 107 * @retval NRF_ERROR_INTERNAL An unexpected error occurred.
AnnaBridge 143:86740a56073b 108 */
AnnaBridge 143:86740a56073b 109 ret_code_t sm_register(sm_evt_handler_t evt_handler);
AnnaBridge 143:86740a56073b 110
AnnaBridge 143:86740a56073b 111
AnnaBridge 143:86740a56073b 112 /**@brief Function for dispatching SoftDevice events to the Security Manager module.
AnnaBridge 143:86740a56073b 113 *
AnnaBridge 143:86740a56073b 114 * @param[in] ble_evt The SoftDevice event.
AnnaBridge 143:86740a56073b 115 */
AnnaBridge 143:86740a56073b 116 void sm_ble_evt_handler(ble_evt_t * ble_evt);
AnnaBridge 143:86740a56073b 117
AnnaBridge 143:86740a56073b 118
AnnaBridge 143:86740a56073b 119 /**@brief Function for providing pairing and bonding parameters to use for pairing procedures.
AnnaBridge 143:86740a56073b 120 *
AnnaBridge 143:86740a56073b 121 * @details Until this is called, all bonding procedures initiated by the peer will be rejected.
AnnaBridge 143:86740a56073b 122 * This function can be called multiple times, even with NULL p_sec_params, in which case
AnnaBridge 143:86740a56073b 123 * it will go back to rejecting all procedures.
AnnaBridge 143:86740a56073b 124 *
AnnaBridge 143:86740a56073b 125 * @param[in] p_sec_params The security parameters to use for this link. Can be NULL to reject
AnnaBridge 143:86740a56073b 126 * all pairing procedures.
AnnaBridge 143:86740a56073b 127 *
AnnaBridge 143:86740a56073b 128 * @retval NRF_SUCCESS Success.
AnnaBridge 143:86740a56073b 129 * @retval NRF_ERROR_INVALID_PARAM Invalid combination of parameters.
AnnaBridge 143:86740a56073b 130 * @retval NRF_ERROR_INVALID_STATE Module is not initialized.
AnnaBridge 143:86740a56073b 131 */
AnnaBridge 143:86740a56073b 132 ret_code_t sm_sec_params_set(ble_gap_sec_params_t * p_sec_params);
AnnaBridge 143:86740a56073b 133
AnnaBridge 143:86740a56073b 134
AnnaBridge 143:86740a56073b 135 /**@brief Function for providing security configuration for a link.
AnnaBridge 143:86740a56073b 136 *
AnnaBridge 143:86740a56073b 137 * @details This function is optional, and must be called in reply to a @ref
AnnaBridge 143:86740a56073b 138 * SM_EVT_CONN_SEC_CONFIG_REQ event, before the Peer Manager event handler returns. If it
AnnaBridge 143:86740a56073b 139 * is not called in time, a default configuration is used. See @ref pm_conn_sec_config_t
AnnaBridge 143:86740a56073b 140 * for the value of the default.
AnnaBridge 143:86740a56073b 141 *
AnnaBridge 143:86740a56073b 142 * @param[in] conn_handle The connection to set the configuration for.
AnnaBridge 143:86740a56073b 143 * @param[in] p_conn_sec_config The configuration.
AnnaBridge 143:86740a56073b 144 */
AnnaBridge 143:86740a56073b 145 void sm_conn_sec_config_reply(uint16_t conn_handle, pm_conn_sec_config_t * p_conn_sec_config);
AnnaBridge 143:86740a56073b 146
AnnaBridge 143:86740a56073b 147
AnnaBridge 143:86740a56073b 148 /**@brief Experimental function for specifying the public key to use for LESC operations.
AnnaBridge 143:86740a56073b 149 *
AnnaBridge 143:86740a56073b 150 * @details This function can be called multiple times. The specified public key will be used for
AnnaBridge 143:86740a56073b 151 * all subsequent LESC (LE Secure Connections) operations until the next time this function
AnnaBridge 143:86740a56073b 152 * is called.
AnnaBridge 143:86740a56073b 153 *
AnnaBridge 143:86740a56073b 154 * @note The key must continue to reside in application memory as it is not copied by Peer Manager.
AnnaBridge 143:86740a56073b 155 *
AnnaBridge 143:86740a56073b 156 * @param[in] p_public_key The public key to use for all subsequent LESC operations.
AnnaBridge 143:86740a56073b 157 *
AnnaBridge 143:86740a56073b 158 * @retval NRF_SUCCESS Pairing initiated successfully.
AnnaBridge 143:86740a56073b 159 * @retval NRF_ERROR_INVALID_STATE Peer Manager is not initialized.
AnnaBridge 143:86740a56073b 160 */
AnnaBridge 143:86740a56073b 161 ret_code_t sm_lesc_public_key_set(ble_gap_lesc_p256_pk_t * p_public_key);
AnnaBridge 143:86740a56073b 162
AnnaBridge 143:86740a56073b 163
AnnaBridge 143:86740a56073b 164 /**@brief Function for providing pairing and bonding parameters to use for the current pairing
AnnaBridge 143:86740a56073b 165 * procedure on a connection.
AnnaBridge 143:86740a56073b 166 *
AnnaBridge 143:86740a56073b 167 * @warning This function is not yet implemented.
AnnaBridge 143:86740a56073b 168 *
AnnaBridge 143:86740a56073b 169 * @note If this function returns an @ref NRF_ERROR_NULL, @ref NRF_ERROR_INVALID_PARAM, @ref
AnnaBridge 143:86740a56073b 170 * BLE_ERROR_INVALID_CONN_HANDLE, or @ref NRF_ERROR_NO_MEM, this function can be called again
AnnaBridge 143:86740a56073b 171 * after corrective action.
AnnaBridge 143:86740a56073b 172 *
AnnaBridge 143:86740a56073b 173 * @note To reject a request, call this function with NULL p_sec_params.
AnnaBridge 143:86740a56073b 174 *
AnnaBridge 143:86740a56073b 175 * @param[in] conn_handle The connection handle of the connection the pairing is happening on.
AnnaBridge 143:86740a56073b 176 * @param[in] p_sec_params The security parameters to use for this link.
AnnaBridge 143:86740a56073b 177 *
AnnaBridge 143:86740a56073b 178 * @retval NRF_SUCCESS Success.
AnnaBridge 143:86740a56073b 179 * @retval NRF_ERROR_INVALID_STATE Module is not initialized, or no parameters have been
AnnaBridge 143:86740a56073b 180 * requested on that conn_handle, or this error originates
AnnaBridge 143:86740a56073b 181 * from the SoftDevice.
AnnaBridge 143:86740a56073b 182 * @retval NRF_ERROR_INVALID_PARAM Invalid combination of parameters (not including conn_handle).
AnnaBridge 143:86740a56073b 183 * @retval NRF_ERROR_TIMEOUT There has been an SMP timeout, so no more SMP operations
AnnaBridge 143:86740a56073b 184 * can be performed on this link.
AnnaBridge 143:86740a56073b 185 * @retval BLE_ERROR_INVALID_CONN_HANDLE Invalid connection handle.
AnnaBridge 143:86740a56073b 186 * @retval NRF_ERROR_NO_MEM No more room in flash. Fix and reattempt later.
AnnaBridge 143:86740a56073b 187 * @retval NRF_ERROR_BUSY No write buffer. Reattempt later.
AnnaBridge 143:86740a56073b 188 */
AnnaBridge 143:86740a56073b 189 ret_code_t sm_sec_params_reply(uint16_t conn_handle, ble_gap_sec_params_t * p_sec_params);
AnnaBridge 143:86740a56073b 190
AnnaBridge 143:86740a56073b 191
AnnaBridge 143:86740a56073b 192 /**@brief Function for initiating security on the link, with the specified parameters.
AnnaBridge 143:86740a56073b 193 *
AnnaBridge 143:86740a56073b 194 * @note If the connection is a peripheral connection, this will send a security request to the
AnnaBridge 143:86740a56073b 195 * master, but the master is not obligated to initiate pairing or encryption in response.
AnnaBridge 143:86740a56073b 196 * @note If the connection is a central connection and a key is available, the parameters will be
AnnaBridge 143:86740a56073b 197 * used to determine whether to re-pair or to encrypt using the existing key. If no key is
AnnaBridge 143:86740a56073b 198 * available, pairing will be started.
AnnaBridge 143:86740a56073b 199 *
AnnaBridge 143:86740a56073b 200 * @param[in] conn_handle Handle of the connection to initiate pairing on.
AnnaBridge 143:86740a56073b 201 * @param[in] force_repairing Whether to force a pairing procedure to happen regardless of whether
AnnaBridge 143:86740a56073b 202 * an encryption key already exists. This argument is only relevant for
AnnaBridge 143:86740a56073b 203 * the central role. Recommended value: false
AnnaBridge 143:86740a56073b 204 *
AnnaBridge 143:86740a56073b 205 * @retval NRF_SUCCESS Success.
AnnaBridge 143:86740a56073b 206 * @retval NRF_ERROR_TIMEOUT There has been an SMP timeout, so no more SMP operations
AnnaBridge 143:86740a56073b 207 * can be performed on this link.
AnnaBridge 143:86740a56073b 208 * @retval BLE_ERROR_INVALID_CONN_HANDLE Invalid connection handle.
AnnaBridge 143:86740a56073b 209 * @retval NRF_ERROR_NOT_FOUND Security parameters have not been set.
AnnaBridge 143:86740a56073b 210 * @retval NRF_ERROR_INVALID_STATE Module is not initialized.
AnnaBridge 143:86740a56073b 211 * @retval NRF_ERROR_INTERNAL An unexpected error occurred.
AnnaBridge 143:86740a56073b 212 */
AnnaBridge 143:86740a56073b 213 ret_code_t sm_link_secure(uint16_t conn_handle, bool force_repairing);
AnnaBridge 143:86740a56073b 214
AnnaBridge 143:86740a56073b 215 /** @}
AnnaBridge 143:86740a56073b 216 * @endcond
AnnaBridge 143:86740a56073b 217 */
AnnaBridge 143:86740a56073b 218
AnnaBridge 143:86740a56073b 219 #endif /* SECURITY_MANAGER_H__ */