text: /* Copyright (c) 2014 Nordic Semiconductor. All Rights Reserved.
   *
   * The information contained herein is property of Nordic Semiconductor ASA.
   * Terms and conditions of usage are described in detail in NORDIC
   * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
   *
   * Licensees are granted free, non-transferable use of the information. NO
   * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
   * the file.
   *
   */
  #ifndef _APP_BLE_GAP_SEC_KEYS_H
  #define _APP_BLE_GAP_SEC_KEYS_H
  
  /**
   * @addtogroup ser_codecs Serialization codecs
   * @ingroup ble_sdk_lib_serialization
   */
  
  /**
   * @addtogroup ser_app_s130_codecs Application S132 codecs
   * @ingroup ser_codecs
   */
  
   /**@file
   *
   * @defgroup app_ble_gap_sec_keys GAP Functions for managing memory for security keys in the application device.
   * @{
   * @ingroup  ser_app_s130_codecs
   *
   * @brief    GAP Application auxiliary functions for synchronizing the GAP security keys with the ones stored in the connectivity device.
   */
  
  #include "ble_gap.h"
  #include <stdint.h>
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  #ifndef SER_MAX_CONNECTIONS
  #define SER_MAX_CONNECTIONS 2
  #endif
  /**@brief GAP connection - keyset mapping structure.
   *
   * @note  This structure is used to map keysets to connection instances and store them in a static table.
   */
  typedef struct
  {
    uint16_t               conn_handle;    /**< Connection handle.*/
    uint8_t                conn_active;    /**< Indication that keys for this connection are used by the SoftDevice. 0: keys used; 1: keys not used. */
    ble_gap_sec_keyset_t   keyset;         /**< Keyset structure, see @ref ble_gap_sec_keyset_t.*/
  } ser_ble_gap_app_keyset_t;
  
  /**@brief Allocates the instance in m_app_keys_table[] for storage of encryption keys.
   *
   * @param[in]     conn_handle         conn_handle
   * @param[out]    p_index             Pointer to the index of the allocated instance.
   *
   * @retval NRF_SUCCESS                Context allocated.
   * @retval NRF_ERROR_NO_MEM           No free instance available.
   */
  uint32_t app_ble_gap_sec_context_create(uint16_t conn_handle, uint32_t *p_index);
  
  /**@brief Release the instance identified by a connection handle.
   *
   * @param[in]     conn_handle         conn_handle
   *
   * @retval NRF_SUCCESS                Context released.
   * @retval NRF_ERROR_NOT_FOUND        Instance with conn_handle not found.
   */
  uint32_t app_ble_gap_sec_context_destroy(uint16_t conn_handle);
  
  /**@brief Finds index of instance identified by a connection handle in m_app_keys_table[].
   *
   * @param[in]     conn_handle         conn_handle
   *
   * @param[out]    p_index             Pointer to the index of the entry in the context table corresponding to the given conn_handle.
   *
   * @retval NRF_SUCCESS                Context found.
   * @retval NRF_ERROR_NOT_FOUND        Instance with conn_handle not found.
   */
  uint32_t app_ble_gap_sec_context_find(uint16_t conn_handle, uint32_t *p_index);
  /** @} */
  
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif //_APP_BLE_GAP_SEC_KEYS_H
  