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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ble_pair_msg')
2 files changed, 690 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ble_pair_msg/nfc_ble_pair_msg.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ble_pair_msg/nfc_ble_pair_msg.c new file mode 100644 index 0000000..88cb6a9 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ble_pair_msg/nfc_ble_pair_msg.c @@ -0,0 +1,411 @@ +/** + * Copyright (c) 2015 - 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 "sdk_common.h" +#if NRF_MODULE_ENABLED(NFC_BLE_PAIR_MSG) + +#include "nfc_ble_pair_msg.h" +#include "nfc_hs_rec.h" +#include "nfc_ac_rec.h" +#include "nfc_le_oob_rec.h" +#include "nfc_ep_oob_rec.h" +#include "nfc_ndef_msg.h" +#include "sdk_macros.h" + +/** + * @brief Descriptor of TK value locations in Connection Handover NDEF message. + */ +typedef struct +{ + uint8_t ** pp_tk_group; /**< Pointer to array of pointer with TK locations in CH NDEF message. */ + uint8_t tk_num; /**< Number of valid TK locations. */ + uint8_t tk_max_num; /**< Maximal number of possible TK locations. */ +} nfc_ble_tk_group_t; + +/** + * @brief Descriptor of LESC OOB data in Connection Handover NDEF message. + */ +typedef struct +{ + uint8_t * confirm; /**< Pointer to the LESC OOB confirmation value in the CH NDEF message. */ + uint8_t * random; /**< Pointer to the LESC OOB random value in the CH NDEF message. */ +} nfc_ble_lesc_data_pos_t; + +static nfc_ble_lesc_data_pos_t m_lesc_pos = {NULL, NULL}; /**< Descriptor used to update LESC keys in the NDEF Message */ +static nfc_ble_tk_group_t m_tk_group; /**< Descriptor used to find TK locations in the NDEF Message which require update. */ +static bool m_tk_modifier_on = false; /**< Flag indicating that TK modifier feature is on. */ + +/* Default value for Security Manager Out Of Band Flags field in BLE AD structure */ +/* which is used for EP OOB Record payload */ +static const uint8_t sec_mgr_oob_flags = + (AD_TYPE_SEC_MGR_OOB_FLAG_SET << AD_TYPE_SEC_MGR_OOB_FLAG_OOB_DATA_PRESENT_POS) | + (AD_TYPE_SEC_MGR_OOB_FLAG_SET << AD_TYPE_SEC_MGR_OOB_FLAG_OOB_LE_SUPPORTED_POS) | + (AD_TYPE_SEC_MGR_OOB_FLAG_CLEAR << AD_TYPE_SEC_MGR_OOB_FLAG_SIM_LE_AND_EP_POS) | + (AD_TYPE_SEC_MGR_OOB_ADDRESS_TYPE_RANDOM << AD_TYPE_SEC_MGR_OOB_FLAG_ADDRESS_TYPE_POS); + +/**@brief Function for configuring TK group modifier feature. + * + * @details This function configures the structure which is responsible for tracking TK locations. + * These locations can be afterwards easily accessed with @ref nfc_tk_group_modifier_update + * and modified. + * + * @param[in] pp_tk_group Pointer to array of TK locations that should be modified with + * @ref nfc_tk_group_modifier_update function. + * @param[in] max_group_size Maximal number of TK locations that can added to \p pp_tk_group. + */ +__STATIC_INLINE void nfc_tk_group_modifier_config(uint8_t ** pp_tk_group, uint8_t max_group_size) +{ + m_tk_group.pp_tk_group = pp_tk_group; + m_tk_group.tk_num = 0; + m_tk_group.tk_max_num = max_group_size; +} + +/** @brief Function for creating an AD structure with common configuration for EP and LE OOB records. + * + * This function creates an AD structure and initializes its fields with default content. Only + * fields that are common for both EP and LE OOB records are filled. + * + * @param[in] p_tk_value Pointer to the authentication Temporary Key (TK). If NULL, + * TK field of the returned AD structure is empty. + * @param[out] p_adv_data Pointer to BLE AD structure with common configuration for EP + * and LE OOB records. + */ +static void common_adv_data_create(ble_advdata_tk_value_t * const p_tk_value, + ble_gap_lesc_oob_data_t * const p_lesc_data, + ble_advdata_t * const p_adv_data) +{ + memset((uint8_t *) p_adv_data, 0, sizeof(ble_advdata_t)); + + /* Set common configuration of AD structure for both Bluetooth EP and LE record */ + p_adv_data->include_appearance = true; + p_adv_data->name_type = BLE_ADVDATA_FULL_NAME; + p_adv_data->p_tk_value = NULL; + if (p_tk_value != NULL) + { + p_adv_data->p_tk_value = p_tk_value; + } + + p_adv_data->p_lesc_data = p_lesc_data; +} + +/** @brief Function for creating an AD structure with default configuration for an LE OOB record. + * + * This function creates an AD structure and initializes its fields with default content for + * LE OOB record payload. + * + * @param[in] p_tk_value Pointer to the authentication Temporary Key (TK). If NULL, + * TK field of the returned AD structure is empty. + * @param[out] p_le_adv_data Pointer to BLE AD structure with default configuration + * for LE OOB record. + */ +static void le_oob_specific_adv_data_create(ble_advdata_tk_value_t * const p_tk_value, + ble_gap_lesc_oob_data_t * const p_lesc_data, + ble_advdata_t * const p_le_adv_data) +{ + /* Create default configuration which is common for both EP and LE OOB Records */ + common_adv_data_create(p_tk_value, p_lesc_data, p_le_adv_data); + + /* LE specific configuration */ + p_le_adv_data->include_ble_device_addr = true; + p_le_adv_data->le_role = BLE_ADVDATA_ROLE_ONLY_PERIPH; + p_le_adv_data->flags = BLE_GAP_ADV_FLAG_BR_EDR_NOT_SUPPORTED; +} + +/** @brief Function for creating an AD structure with default configuration for an EP OOB record. + * + * This function creates an AD structure and initializes its fields with default content for + * EP OOB record payload. + * + * @param[in] p_tk_value Pointer to the authentication Temporary Key (TK). If NULL, + * TK field of the returned AD structure is empty. + * @param[out] p_ep_adv_data Pointer to BLE AD structure with default configuration + * for EP OOB record. + */ +static void ep_oob_specific_adv_data_create(ble_advdata_tk_value_t * const p_tk_value, + ble_gap_lesc_oob_data_t * const p_lesc_data, + ble_advdata_t * const p_ep_adv_data) +{ + /* Create default configuration which is common for both EP and LE OOB Records */ + common_adv_data_create(p_tk_value, p_lesc_data, p_ep_adv_data); + + /* EP specific configuration */ + p_ep_adv_data->p_sec_mgr_oob_flags = (uint8_t *) &sec_mgr_oob_flags; +} + +ret_code_t nfc_ble_simplified_le_oob_msg_encode(ble_advdata_t const * const p_le_advdata, + uint8_t * p_buf, + uint32_t * p_len) +{ + ret_code_t err_code; + + /* Create NFC NDEF message description, capacity - 1 record */ + NFC_NDEF_MSG_DEF(nfc_le_oob_msg, 1); + + /* Create NFC NDEF LE OOB Record description without record ID field */ + NFC_NDEF_LE_OOB_RECORD_DESC_DEF(nfc_le_oob_rec, 0, p_le_advdata); + + /* Add LE OOB Record as lone record to message */ + err_code = nfc_ndef_msg_record_add(&NFC_NDEF_MSG(nfc_le_oob_msg), + &NFC_NDEF_LE_OOB_RECORD_DESC(nfc_le_oob_rec)); + VERIFY_SUCCESS(err_code); + VERIFY_PARAM_NOT_NULL(p_le_advdata); + + if (!m_tk_modifier_on) + { + nfc_tk_group_modifier_config(NULL, 0); + } + + /* Encode whole message into buffer */ + err_code = nfc_ndef_msg_encode(&NFC_NDEF_MSG(nfc_le_oob_msg), + p_buf, + p_len); + + return err_code; +} + +ret_code_t nfc_ble_simplified_ep_oob_msg_encode(ble_advdata_t const * const p_ep_advdata, + uint8_t * p_buf, + uint32_t * p_len) +{ + ret_code_t err_code; + + /* Create NFC NDEF message description, capacity - 1 record */ + NFC_NDEF_MSG_DEF(nfc_ep_oob_msg, 1); + + /* Create NFC NDEF EP OOB Record description without record ID field */ + NFC_NDEF_EP_OOB_RECORD_DESC_DEF(nfc_ep_oob_rec, 0, p_ep_advdata); + + /* Add EP OOB Record as lone record to message */ + err_code = nfc_ndef_msg_record_add(&NFC_NDEF_MSG(nfc_ep_oob_msg), + &NFC_NDEF_EP_OOB_RECORD_DESC(nfc_ep_oob_rec)); + VERIFY_SUCCESS(err_code); + VERIFY_PARAM_NOT_NULL(p_ep_advdata); + + if (!m_tk_modifier_on) + { + nfc_tk_group_modifier_config(NULL, 0); + } + + /* Encode whole message into buffer */ + err_code = nfc_ndef_msg_encode(&NFC_NDEF_MSG(nfc_ep_oob_msg), + p_buf, + p_len); + + return err_code; +} + +ret_code_t nfc_ble_full_handover_select_msg_encode(ble_advdata_t const * const p_le_advdata, + ble_advdata_t const * const p_ep_advdata, + uint8_t * p_buf, + uint32_t * p_len) +{ + ret_code_t err_code; + + // Carrier reference buffers for ac records. + uint8_t carrier_le_reference = '0'; + uint8_t carrier_ep_reference = '1'; + + // Create ac records for both message types. + NFC_NDEF_AC_RECORD_DESC_DEF(ac_rec_le, NFC_AC_CPS_ACTIVE, 1, &carrier_le_reference, 1); + NFC_NDEF_AC_RECORD_DESC_DEF(ac_rec_ep, NFC_AC_CPS_ACTIVE, 1, &carrier_ep_reference, 1); + + // Create a Hs record and assign existing ac records to it. + NFC_NDEF_HS_RECORD_DESC_DEF(hs_rec, 1, 3, 2); + err_code = nfc_hs_rec_local_record_add(&NFC_NDEF_HS_RECORD_DESC(hs_rec), + &NFC_NDEF_AC_RECORD_DESC(ac_rec_le)); + VERIFY_SUCCESS(err_code); + err_code = nfc_hs_rec_local_record_add(&NFC_NDEF_HS_RECORD_DESC(hs_rec), + &NFC_NDEF_AC_RECORD_DESC(ac_rec_ep)); + VERIFY_SUCCESS(err_code); + + // Create LE and EP records with different record IDs. + NFC_NDEF_LE_OOB_RECORD_DESC_DEF(nfc_le_oob_rec, carrier_le_reference, p_le_advdata); + NFC_NDEF_EP_OOB_RECORD_DESC_DEF(nfc_ep_oob_rec, carrier_ep_reference, p_ep_advdata); + + // Create full NDEF Handover Select message for Connection Handover and assign Hs, + // LE and EP records to it. + NFC_NDEF_MSG_DEF(nfc_hs_full_msg, 3); + err_code = nfc_ndef_msg_record_add(&NFC_NDEF_MSG(nfc_hs_full_msg), + &NFC_NDEF_HS_RECORD_DESC(hs_rec)); + VERIFY_SUCCESS(err_code); + err_code = nfc_ndef_msg_record_add(&NFC_NDEF_MSG(nfc_hs_full_msg), + &NFC_NDEF_LE_OOB_RECORD_DESC(nfc_le_oob_rec)); + VERIFY_SUCCESS(err_code); + err_code = nfc_ndef_msg_record_add(&NFC_NDEF_MSG(nfc_hs_full_msg), + &NFC_NDEF_EP_OOB_RECORD_DESC(nfc_ep_oob_rec)); + VERIFY_SUCCESS(err_code); + + VERIFY_PARAM_NOT_NULL(p_le_advdata); + VERIFY_PARAM_NOT_NULL(p_ep_advdata); + + if (!m_tk_modifier_on) + { + nfc_tk_group_modifier_config(NULL, 0); + } + + /* Encode whole message into buffer */ + err_code = nfc_ndef_msg_encode(&NFC_NDEF_MSG(nfc_hs_full_msg), + p_buf, + p_len); + + return err_code; +} + +ret_code_t nfc_ble_pair_default_msg_encode(nfc_ble_pair_type_t nfc_ble_pair_type, + ble_advdata_tk_value_t * const p_tk_value, + ble_gap_lesc_oob_data_t * const p_lesc_data, + uint8_t * p_buf, + uint32_t * p_len) +{ + ble_advdata_t le_adv_data; + ble_advdata_t ep_adv_data; + ret_code_t err_code = NRF_SUCCESS; + + switch (nfc_ble_pair_type) + { + + case NFC_BLE_PAIR_MSG_BLUETOOTH_LE_SHORT: + le_oob_specific_adv_data_create(p_tk_value, p_lesc_data, &le_adv_data); + err_code = nfc_ble_simplified_le_oob_msg_encode(&le_adv_data, p_buf, p_len); + break; + + case NFC_BLE_PAIR_MSG_BLUETOOTH_EP_SHORT: + ep_oob_specific_adv_data_create(p_tk_value, NULL, &ep_adv_data); + err_code = nfc_ble_simplified_ep_oob_msg_encode(&ep_adv_data, p_buf, p_len); + break; + + case NFC_BLE_PAIR_MSG_FULL: + le_oob_specific_adv_data_create(p_tk_value, p_lesc_data, &le_adv_data); + ep_oob_specific_adv_data_create(p_tk_value, NULL, &ep_adv_data); + err_code = nfc_ble_full_handover_select_msg_encode(&le_adv_data, + &ep_adv_data, + p_buf, + p_len); + break; + + } + + return err_code; +} + +ret_code_t nfc_ble_pair_msg_updatable_tk_encode(nfc_ble_pair_type_t nfc_ble_pair_type, + ble_advdata_tk_value_t * const p_tk_value, + ble_gap_lesc_oob_data_t * const p_lesc_data, + uint8_t * p_buf, + uint32_t * p_len, + uint8_t ** pp_tk_group, + uint8_t max_group_size) +{ + ret_code_t err_code = NRF_SUCCESS; + + m_tk_modifier_on = true; + nfc_tk_group_modifier_config(pp_tk_group, max_group_size); + err_code = nfc_ble_pair_default_msg_encode(nfc_ble_pair_type, p_tk_value, + p_lesc_data, p_buf, p_len); + m_tk_modifier_on = false; + + return err_code; +} + +ret_code_t nfc_tk_group_modifier_update(ble_advdata_tk_value_t * p_tk_value) +{ + VERIFY_PARAM_NOT_NULL(m_tk_group.pp_tk_group); + for (uint8_t tk_index = 0; tk_index < m_tk_group.tk_num; ++tk_index) + { + uint8_t * p_tk_payload_data = m_tk_group.pp_tk_group[tk_index]; + nfc_tk_value_payload_encode(p_tk_value, p_tk_payload_data); + } + return NRF_SUCCESS; +} + +ret_code_t nfc_tk_to_group_add(uint8_t * p_tk_location) +{ + // Feature was disabled. + if (m_tk_group.pp_tk_group == NULL) + { + return NRF_SUCCESS; + } + + if (m_tk_group.tk_num < m_tk_group.tk_max_num) + { + m_tk_group.pp_tk_group[m_tk_group.tk_num++] = p_tk_location; + return NRF_SUCCESS; + } + else + { + return NRF_ERROR_NO_MEM; + } +} + +ret_code_t nfc_lesc_pos_set(uint8_t * p_confirm, uint8_t * p_random) +{ + if ((p_confirm != NULL) && (p_random != NULL)) + { + m_lesc_pos.confirm = p_confirm; + m_lesc_pos.random = p_random; + + return NRF_SUCCESS; + } + else + { + return NRF_ERROR_NULL; + } +} + +ret_code_t nfc_lesc_data_update(ble_gap_lesc_oob_data_t * p_ble_lesc_oob_data) +{ + if (p_ble_lesc_oob_data != NULL) + { + if ((m_lesc_pos.confirm != NULL) && (m_lesc_pos.random != NULL)) + { + memcpy(m_lesc_pos.confirm, p_ble_lesc_oob_data->c, AD_TYPE_CONFIRM_VALUE_DATA_SIZE); + memcpy(m_lesc_pos.random, p_ble_lesc_oob_data->r, AD_TYPE_RANDOM_VALUE_DATA_SIZE); + + return NRF_SUCCESS; + } + + return NRF_ERROR_INVALID_STATE; + } + else + { + return NRF_ERROR_NULL; + } +} + +#endif // NRF_MODULE_ENABLED(NFC_BLE_PAIR_MSG) diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ble_pair_msg/nfc_ble_pair_msg.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ble_pair_msg/nfc_ble_pair_msg.h new file mode 100644 index 0000000..ab7ce18 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ble_pair_msg/nfc_ble_pair_msg.h @@ -0,0 +1,279 @@ +/** + * Copyright (c) 2015 - 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. + * + */ +#ifndef NFC_BLE_PAIR_MSG_H__ +#define NFC_BLE_PAIR_MSG_H__ + +/**@file + * + * @defgroup nfc_modules NDEF message modules + * @ingroup nfc_api + * @brief Implementation of NDEF messages. + * + * @defgroup nfc_ndef_messages Predefined NDEF messages + * @ingroup nfc_modules + * @brief Predefined NDEF messages for standard use. + * + * @defgroup nfc_ble_pair_msg BLE pairing messages + * @{ + * @ingroup nfc_ndef_messages + * + * @brief Generation of NFC NDEF messages used for BLE pairing. + * + */ + +#include <stdint.h> +#include "ble_advdata.h" +#include "sdk_errors.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @brief Types of BLE pairing message. + * + * Use one of these values to choose the type of NDEF BLE pairing message. + */ +typedef enum +{ + NFC_BLE_PAIR_MSG_BLUETOOTH_LE_SHORT, ///< Simplified LE OOB message. + NFC_BLE_PAIR_MSG_BLUETOOTH_EP_SHORT, ///< Simplified EP OOB message. + NFC_BLE_PAIR_MSG_FULL ///< BLE Handover Select Message. +} nfc_ble_pair_type_t; + +/** @brief Function for encoding simplified LE OOB messages. + * + * This function encodes a simplified LE OOB message into a buffer. The payload of the LE OOB record + * inside the message can be configured via the advertising data structure. + * + * This function was implemented partially according to "Bluetooth Secure Simple Pairing Using NFC" + * (denotation "NFCForum-AD-BTSSP_1_1" published on 2014-01-09) chapters 3.1, 3.2, 4.3.2, + * and according to "Supplement to the Bluetooth Core Specification" (Version 5, adoption date: + * Dec 02 2014). + * + * @note To be able to encode the message, a SoftDevice must be enabled and configured. + * + * @param[in] p_le_advdata Pointer to the BLE advertising data structure for the LE OOB record. + * @param[out] p_buf Pointer to the buffer for the message. + * @param[in,out] p_len Size of the available memory for the message as input. + * Size of the generated message as output. + * + * @retval NRF_SUCCESS If the function completed successfully. + * @retval NRF_ERROR_xxx If an error occurred. + */ +ret_code_t nfc_ble_simplified_le_oob_msg_encode(ble_advdata_t const * const p_le_advdata, + uint8_t * p_buf, + uint32_t * p_len); + +/** @brief Function for encoding simplified EP OOB messages. + * + * This function encodes a simplified EP OOB message into a buffer. The payload of the EP OOB record + * inside the message can be configured via the advertising data structure. + * + * This function was implemented partially according to "Bluetooth Secure Simple Pairing Using NFC" + * (denotation "NFCForum-AD-BTSSP_1_1" published on 2014-01-09) chapters 3.1, 3.2, 4.3.1, + * and according to "Supplement to the Bluetooth Core Specification" (Version 5, adoption date: + * Dec 02 2014). + * + * @note To be able to encode the message, a SoftDevice must be enabled and configured. + * + * @param[in] p_ep_advdata Pointer to the BLE advertising data structure for the EP OOB record. + * @param[out] p_buf Pointer to the buffer for the message. + * @param[in,out] p_len Size of the available memory for the message as input. + * Size of the generated message as output. + * + * @retval NRF_SUCCESS If the function completed successfully. + * @retval NRF_ERROR_xxx If an error occurred. + */ +ret_code_t nfc_ble_simplified_ep_oob_msg_encode(ble_advdata_t const * const p_ep_advdata, + uint8_t * p_buf, + uint32_t * p_len); + +/** @brief Function for encoding BLE Handover Select Messages. + * + * This function encodes a BLE Handover Select Message into a buffer. The payload of the LE OOB record + * and the EP OOB record inside the message can be configured via the advertising data structures. + * + * This function was implemented partially according to "Bluetooth Secure Simple Pairing Using NFC" + * (denotation "NFCForum-AD-BTSSP_1_1" published on 2014-01-09) chapters 3.1, 3.2, 4.1.1 + * and 4.1.2 (combined), and according to "Supplement to the Bluetooth Core Specification" (Version 5, + * adoption date: Dec 02 2014). + * + * @note To be able to encode the message, a SoftDevice must be enabled and configured. + * + * @param[in] p_le_advdata Pointer to the BLE advertising data structure for the LE OOB record. + * @param[in] p_ep_advdata Pointer to the BLE advertising data structure for the EP OOB record. + * @param[out] p_buf Pointer to the buffer for the message. + * @param[in,out] p_len Size of the available memory for the message as input. + * Size of the generated message as output. + * + * @retval NRF_SUCCESS If the function completed successfully. + * @retval NRF_ERROR_xxx If an error occurred. + */ +ret_code_t nfc_ble_full_handover_select_msg_encode(ble_advdata_t const * const p_le_advdata, + ble_advdata_t const * const p_ep_advdata, + uint8_t * p_buf, + uint32_t * p_len); + +/** @brief Function for encoding any type of BLE pairing messages with default BLE + * advertising data structures. + * + * This function encodes a BLE pairing message into a buffer. The message can be encoded as + * one of the three message types (using @ref nfc_ble_simplified_le_oob_msg_encode, + * @ref nfc_ble_simplified_ep_oob_msg_encode, or @ref nfc_ble_full_handover_select_msg_encode), + * according to the @p nfc_ble_pair_type parameter. LE and EP OOB records use the default + * advertising data structure configuration. Only one field ('Security Manager TK') in the BLE + * advertising data can be configured for both records by specifying the @p p_tk_value parameter. + * + * For LE OOB records, the default BLE advertising data structure configuration fills the required + * fields 'LE Bluetooth Device Address' and 'LE Role' and the optional fields 'Appearance', + * 'Local Name', and 'Flags'. + * + * For EP OOB records, the default BLE advertising data structure configuration fills the required + * field 'Security Manager Out Of Band Flags' and the optional fields 'Appearance', + * 'Local Name', and 'Flags'. + * + * @note To be able to encode the message, a SoftDevice must be enabled and configured. + * + * @param[in] nfc_ble_pair_type Type of BLE pairing message. + * @param[in] p_tk_value Pointer to the authentication Temporary Key (TK). If NULL, + * TK value field is not encoded in the NDEF message. + * @param[in] p_lesc_data Pointer to the LESC OOB data. If NULL, LESC OOB fields are + * not encoded in the NDEF message. + * @param[out] p_buf Pointer to the buffer for the message. + * @param[in,out] p_len Size of the available memory for the message as input. + * Size of the generated message as output. + * + * @retval NRF_SUCCESS If the function completed successfully. + * @retval NRF_ERROR_xxx If an error occurred. + */ +ret_code_t nfc_ble_pair_default_msg_encode(nfc_ble_pair_type_t nfc_ble_pair_type, + ble_advdata_tk_value_t * const p_tk_value, + ble_gap_lesc_oob_data_t * const p_lesc_data, + uint8_t * p_buf, + uint32_t * p_len); + +/** @brief Function for encoding any type of BLE pairing messages with default BLE + * advertising data structures and with TK modifier feature. + * + * This function is very similar to the @ref nfc_ble_pair_default_msg_encode function, but + * additionaly enables tracking of TK locations which were encoded in the Connection Handover + * NDEF message. After using this function, you can update the TK value in NDEF by calling + * @ref nfc_tk_group_modifier_update. + * + * @param[in] nfc_ble_pair_type Type of BLE pairing message. + * @param[in] p_tk_value Pointer to the authentication Temporary Key (TK). If NULL, + * TK value field is not encoded in the NDEF message. + * @param[in] p_lesc_data Pointer to the LESC OOB data. If NULL, LESC OOB values are + * not encoded in the NDEF message. + * @param[out] p_buf Pointer to the buffer for the message. + * @param[in,out] p_len Size of the available memory for the message as input. + * Size of the generated message as output. + * @param[in] pp_tk_group Pointer to array of TK locations that should be modified with + * @ref nfc_tk_group_modifier_update function. + * @param[in] max_group_size Maximal number of TK locations that can added to \p pp_tk_group. + * + * @retval NRF_SUCCESS If the function completed successfully. + * @retval NRF_ERROR_xxx If an error occurred. + */ +ret_code_t nfc_ble_pair_msg_updatable_tk_encode(nfc_ble_pair_type_t nfc_ble_pair_type, + ble_advdata_tk_value_t * const p_tk_value, + ble_gap_lesc_oob_data_t * const p_lesc_data, + uint8_t * p_buf, + uint32_t * p_len, + uint8_t ** pp_tk_group, + uint8_t max_group_size); + +/**@brief Function for updating the Connection Handover NDEF message with new TK value. + * + * @details This function updates NDEF message with new TK value. This update is applied to all of + * TK locations in the Connection Handover NDEF message. This function can only be used + * after calling @ref nfc_ble_pair_msg_updatable_tk_encode, which is used to encode + * Connection Handover NDEF message. + * + * @param[in] p_tk_value Pointer to the new TK value. The NDEF message will be updated with this + * value. + * + * @retval NRF_SUCCESS If the operation was successful. + * @retval NRF_ERROR_NULL If pointer to TK locations was NULL. + */ +ret_code_t nfc_tk_group_modifier_update(ble_advdata_tk_value_t * p_tk_value); + +/**@brief Function for adding new location of TK value to the location description structure. + * + * @param[in] p_tk_location New location of TK value in the Connection Handover NDEF message. + * + * @retval NRF_SUCCESS If the operation was successful or if buffer used for holding TK + * locations is NULL. + * @retval NRF_ERROR_NO_MEM If there is no place in the buffer for the new TK value location. + */ +ret_code_t nfc_tk_to_group_add(uint8_t * p_tk_location); + +/**@brief Function for updating the Connection Handover NDEF message with a new LESC OOB values. + * + * @details Updates LESC Confirmation and Random Values based on its locations set by the @ref nfc_lesc_pos_set function. + * + * @param[in] p_ble_lesc_oob_data Pointer to the new LESC OOB data. The NDEF message will be updated with this data. + * + * @retval NRF_SUCCESS If the operation was successful. + * @retval NRF_ERROR_NULL If pointer to the new LESC OOB data is NULL. + * @retval NRF_ERROR_INVALID_STATE If pointer to the LESC OOB data location in NDEF message is NULL. + */ +ret_code_t nfc_lesc_data_update(ble_gap_lesc_oob_data_t * p_ble_lesc_oob_data); + +/**@brief Function for storing pointers to the LESC OOB data inside NDEF message. + * + * @details It allows LESC OOB data update without regenerating entire CH NDEF message. + * + * @param[in] p_confirm Pointer to the LESC Confirmation Value position in the NDEF message. + * @param[in] p_random Pointer to the LESC Random Value position in the NDEF message. + * + * @retval NRF_SUCCESS If the operation was successful. + * @retval NRF_ERROR_NULL If either of pointers is set to NULL. + */ +ret_code_t nfc_lesc_pos_set(uint8_t * p_confirm, uint8_t * p_random); + +/** @} */ + +#ifdef __cplusplus +} +#endif + +#endif // NFC_BLE_PAIR_MSG_H__ |