/** * Copyright (c) 2017 - 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 #include #include "ble_ots.h" #include "ble_ots_object.h" #include "ble_ots_oacp.h" #include "fds.h" #define BLE_OTS_MAX_OBJ_TYPE_SIZE 16 #define BLE_OTS_OBJ_CHANGED_SIZE 7 #define OTS_INVALID_ID 0xFF #define SIZE_DATE_TIME 7 #define BLE_OTS_INVALID_OCTET_OFFSET BLE_GATT_STATUS_ATTERR_APP_BEGIN + 1 #define BLE_OTS_INVALID_METADATA BLE_GATT_STATUS_ATTERR_APP_BEGIN + 2 #define BLE_OTS_CONCURRENCY_LIMIT_EXCEEDED BLE_GATT_STATUS_ATTERR_APP_BEGIN + 3 #define BLE_OTS_OACP_SUPPORT_FEATURE_CREATE_bp 0 #define BLE_OTS_OACP_SUPPORT_FEATURE_DELETE_bp 1 #define BLE_OTS_OACP_SUPPORT_FEATURE_CALC_CHECKSUM_bp 2 #define BLE_OTS_OACP_SUPPORT_FEATURE_EXECUTE_bp 3 #define BLE_OTS_OACP_SUPPORT_FEATURE_READ_bp 4 #define BLE_OTS_OACP_SUPPORT_FEATURE_WRITE_bp 5 #define BLE_OTS_OACP_SUPPORT_FEATURE_APPEND_bp 6 #define BLE_OTS_OACP_SUPPORT_FEATURE_TRUNCATE_bp 7 #define BLE_OTS_OACP_SUPPORT_FEATURE_PATCH_bp 8 #define BLE_OTS_OACP_SUPPORT_FEATURE_ABORT_bp 9 #define BLE_OTS_OLCP_SUPPORT_FEATURE_GOTO_bp 0 #define BLE_OTS_OLCP_SUPPORT_FEATURE_ORDER_bp 1 #define BLE_OTS_OLCP_SUPPORT_FEATURE_REQ_NUM_OBJECTS_bp 2 #define BLE_OTS_OLCP_SUPPORT_FEATURE_CLEAR_MARKING_bp 3 /**@brief Function for adding the features characteristic. * * @param[in] p_ots Object Transfer Service structure. * @param[in] read_access Read security level for the feature characteristic. * @param[in] p_feature_char_handles Pointer to the handles for the feature characteristic. */ static uint32_t feature_char_add(ble_ots_t * const p_ots, security_req_t read_access, ble_gatts_char_handles_t * p_feature_char_handles) { ble_add_char_params_t add_char_params; uint8_t feature[BLE_OTS_FEATURE_LEN]; uint32_t oacp_features; uint32_t olcp_features; oacp_features = 0; oacp_features |= (1 << BLE_OTS_OACP_SUPPORT_FEATURE_READ_bp); oacp_features |= (1 << BLE_OTS_OACP_SUPPORT_FEATURE_APPEND_bp); oacp_features |= (1 << BLE_OTS_OACP_SUPPORT_FEATURE_TRUNCATE_bp); oacp_features |= (1 << BLE_OTS_OACP_SUPPORT_FEATURE_PATCH_bp); oacp_features |= (1 << BLE_OTS_OACP_SUPPORT_FEATURE_ABORT_bp); olcp_features = 0; uint32_t i = 0; i += uint32_encode(oacp_features, &feature[i]); i += uint32_encode(olcp_features, &feature[i]); memset(&add_char_params, 0, sizeof(add_char_params)); add_char_params.uuid = BLE_UUID_OTS_FEATURES; add_char_params.uuid_type = BLE_UUID_TYPE_BLE; add_char_params.max_len = BLE_OTS_FEATURE_LEN; add_char_params.init_len = BLE_OTS_FEATURE_LEN; add_char_params.p_init_value = &feature[0]; add_char_params.char_props.read = 1; add_char_params.read_access = read_access; return characteristic_add(p_ots->service_handle, &add_char_params, p_feature_char_handles); } /**@brief Function for handling the Connect event. * * @param[in] p_ots Object Transfer Service structure. * @param[in] p_ble_evt Event received from the BLE stack. */ static void on_connect(ble_ots_t * p_ots, ble_evt_t const * p_ble_evt) { p_ots->conn_handle = p_ble_evt->evt.gap_evt.conn_handle; } /**@brief Function for handling the BLE_GAP_EVT_DISCONNECTED event. * * @param[in] p_ots OTS Service Structure. * @param[in] p_ble_evt Pointer to the event received from BLE stack. */ static void on_disconnect(ble_ots_t * p_ots, ble_evt_t const * p_ble_evt) { p_ots->conn_handle = BLE_CONN_HANDLE_INVALID; } uint32_t ble_ots_init(ble_ots_t * p_ots, ble_ots_init_t * p_ots_init) { if ((p_ots == NULL) || (p_ots_init == NULL)) { return NRF_ERROR_NULL; } if (p_ots_init->p_object == NULL) { return NRF_ERROR_NULL; } p_ots->conn_handle = BLE_CONN_HANDLE_INVALID; p_ots->error_handler = p_ots_init->error_handler; p_ots->evt_handler = p_ots_init->evt_handler; p_ots->p_current_object = p_ots_init->p_object; p_ots->error_handler = p_ots_init->error_handler; p_ots->evt_handler = p_ots_init->evt_handler; p_ots->p_current_object = p_ots_init->p_object; ble_uuid_t service_uuid = { .uuid = BLE_UUID_OTS_SERVICE, .type = BLE_UUID_TYPE_BLE }; uint32_t err_code; err_code = fds_init(); if (err_code != NRF_SUCCESS) { return err_code; } err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY, &service_uuid, &(p_ots->service_handle)); if (err_code != NRF_SUCCESS) { return err_code; } err_code = feature_char_add(p_ots, p_ots_init->feature_char_read_access, &p_ots->feature_handles); if (err_code != NRF_SUCCESS) { return err_code; } err_code = ble_ots_object_representation_init(&p_ots->object_chars, &p_ots_init->object_chars_init); if (err_code != NRF_SUCCESS) { return err_code; } err_code = ble_ots_oacp_init(&p_ots->oacp_chars, &p_ots_init->oacp_init); if (err_code != NRF_SUCCESS) { return err_code; } p_ots->oacp_chars.ots_l2cap.conn_mps = p_ots_init->rx_mps; p_ots->oacp_chars.ots_l2cap.conn_mtu = p_ots_init->rx_mtu; return NRF_SUCCESS; } /**@brief Function for handling the BLE_EVT_TX_COMPLETE event. Calls the hvx buffering module. * @param[in] p_ots Object Transfer Service structure. */ static inline void on_tx_complete(ble_ots_t * p_ots) { uint32_t err_code; err_code = ble_hvx_buffer_process(&p_ots->hvx_buf); if (err_code != NRF_SUCCESS) { p_ots->error_handler(err_code); } } void ble_ots_on_ble_evt(ble_evt_t const * p_ble_evt, void * p_context) { ble_ots_t * p_ots; p_ots = (ble_ots_t*) p_context; if ((p_ots == NULL) || (p_ble_evt == NULL)) { return; } ble_ots_oacp_on_ble_evt(&p_ots->oacp_chars, p_ble_evt); ble_ots_object_on_ble_evt(&p_ots->object_chars, p_ble_evt); switch (p_ble_evt->header.evt_id) { case BLE_GAP_EVT_CONNECTED: on_connect(p_ots, p_ble_evt); break; case BLE_GAP_EVT_DISCONNECTED: on_disconnect(p_ots, p_ble_evt); break; case BLE_GATTS_EVT_HVN_TX_COMPLETE: on_tx_complete(p_ots); break; default: // No implementation needed. break; } }