diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ep_oob_rec/nfc_ep_oob_rec.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ep_oob_rec/nfc_ep_oob_rec.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ep_oob_rec/nfc_ep_oob_rec.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ep_oob_rec/nfc_ep_oob_rec.c new file mode 100644 index 0000000..12ab9f6 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ep_oob_rec/nfc_ep_oob_rec.c @@ -0,0 +1,188 @@ +/** + * 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_EP_OOB_REC) + +#include "nfc_ep_oob_rec.h" +#include "sdk_errors.h" +#include "ble_gap.h" +#include "app_util.h" + +/* NFC OOB EP definitions */ +#define NFC_EP_OOB_REC_GAP_ADDR_LEN BLE_GAP_ADDR_LEN +#define NFC_EP_OOB_REC_OOB_DATA_LEN_SIZE 2UL +#define NFC_EP_OOB_REC_PAYLOAD_PREFIX_LEN (NFC_EP_OOB_REC_GAP_ADDR_LEN + \ + NFC_EP_OOB_REC_OOB_DATA_LEN_SIZE) + +/* Record Payload Type for Bluetooth Carrier Configuration EP record */ +const uint8_t ndef_ep_oob_record_type[] = +{ + 'a', 'p', 'p', 'l', 'i', 'c', 'a', 't', 'i', 'o', 'n', '/', 'v', 'n', 'd', '.', + 'b', 'l', 'u', 'e', 't', 'o', 'o', 't', 'h', '.', 'e', 'p', '.', 'o', 'o', 'b' +}; + +/** + * @brief Function for validating AD structure content for a Bluetooth Carrier Configuration EP record. + * + * This function validates AD structure content. LE Bluetooth Device Address and LE Role + * fields must not be included. Security Manager OOB Flags structure is required. + * + * @param[in] p_ble_advdata Pointer to the description of the payload. + * + * @retval NRF_SUCCESS If the validation was successful. + * @retval NRF_ERROR_INVALID_PARAM Otherwise. + */ +static ret_code_t nfc_ep_oob_adv_data_check(ble_advdata_t const * const p_ble_advdata) +{ + if ((true == p_ble_advdata->include_ble_device_addr) || + (BLE_ADVDATA_ROLE_NOT_PRESENT != p_ble_advdata->le_role) || + (NULL == p_ble_advdata->p_sec_mgr_oob_flags)) + { + return NRF_ERROR_INVALID_PARAM; + } + + /* If Flags field in AD structure is present, the BLE_GAP_ADV_FLAG_BR_EDR_NOT_SUPPORTED flag + must be set. */ + if ((0 != p_ble_advdata->flags) && + ((p_ble_advdata->flags & BLE_GAP_ADV_FLAG_BR_EDR_NOT_SUPPORTED) == 0)) + { + return NRF_ERROR_INVALID_PARAM; + } + return NRF_SUCCESS; +} + +/** + * @brief Function for encoding device address to Bluetooth Carrier Configuration EP record. + * + * This fuction is used to encode device address to Bluetooth Carrier Configuration EP record. + * + * @param[in] p_encoded_data Pointer to the buffer where encoded data will be returned. + * @param[in] max_len Available memory in the buffer. + * + * @retval NRF_SUCCESS If the encoding was successful. + * @retval NRF_ERROR_NO_MEM If available memory was not enough. + * @retval NRF_ERROR_xxx If any other error occured. + */ +static ret_code_t nfc_ep_oob_bluetooth_device_address_encode(uint8_t * const p_encoded_data, + uint16_t max_len) +{ + ret_code_t err_code = NRF_SUCCESS; + ble_gap_addr_t device_address; + + memset(&device_address, 0x00, sizeof(device_address)); + + if (NFC_EP_OOB_REC_GAP_ADDR_LEN > max_len) + { + return NRF_ERROR_NO_MEM; + } + + /* Get BLE address */ + err_code = sd_ble_gap_addr_get(&device_address); + if (err_code != NRF_SUCCESS) + { + return err_code; + } + + /* Encode Bluetooth EP device address */ + memcpy(p_encoded_data, device_address.addr, NFC_EP_OOB_REC_GAP_ADDR_LEN); + + return NRF_SUCCESS; +} + +ret_code_t nfc_ep_oob_payload_constructor(ble_advdata_t * p_ble_advdata, + uint8_t * p_buff, + uint32_t * p_len) +{ + ret_code_t err_code = NRF_SUCCESS; + uint8_t * p_ad_data = NULL; + uint16_t payload_len, ad_data_len; + + /* Check correctness of the configuration structure */ + err_code = nfc_ep_oob_adv_data_check(p_ble_advdata); + if (NRF_SUCCESS != err_code) + { + return err_code; + } + + if (p_buff != NULL) + { + /* Validate if there is enough memory for OOB payload length field and BLE device address */ + if (NFC_EP_OOB_REC_PAYLOAD_PREFIX_LEN > *p_len) + { + return NRF_ERROR_NO_MEM; + } + + /* Set proper memory offset in payload buffer for AD structure and count available memory. + * Bluetooth EP device address and OOB payload length field must be inserted before the AD payload */ + p_ad_data = (uint8_t *) (p_buff + NFC_EP_OOB_REC_PAYLOAD_PREFIX_LEN); + ad_data_len = *p_len - NFC_EP_OOB_REC_PAYLOAD_PREFIX_LEN; + if ( *p_len - NFC_EP_OOB_REC_PAYLOAD_PREFIX_LEN > UINT16_MAX ) + { + ad_data_len = UINT16_MAX; + } + } + + /* Encode AD structures into NFC record payload */ + err_code = nfc_ble_oob_adv_data_encode(p_ble_advdata, p_ad_data, &ad_data_len); + if (NRF_SUCCESS != err_code) + { + return err_code; + } + + /* Now as the final payload length is known OOB payload length field, and Bluetooth device + * address can be encoded */ + payload_len = ad_data_len + NFC_EP_OOB_REC_PAYLOAD_PREFIX_LEN; + if (p_buff != NULL) + { + p_buff += uint16_encode(payload_len, p_buff); + err_code = nfc_ep_oob_bluetooth_device_address_encode(p_buff, p_ad_data - p_buff); + if (NRF_SUCCESS != err_code) + { + return err_code; + } + } + + /* Update total payload length */ + *p_len = payload_len; + + return err_code; +} + +#endif // NRF_MODULE_ENABLED(NFC_EP_OOB_REC) |