123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573 |
- /**
- * Copyright (c) 2017 - 2020, 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 "ble_ots_object.h"
- #include <string.h>
- #include "ble_srv_common.h"
- #include "ble_ots.h"
- #define BLE_OTS_WRITE_REQUEST_REJECTED 0x80
- #define BLE_OTS_OBJECT_NOT_SELECTED 0x81
- #define BLE_OTS_CONCURRENCY_LIMIT_EXCEEDED 0x82
- #define BLE_OTS_OBJ_NAME_ALREADY_EXISTS 0x83
- #define BLE_SIZE_DATE_TIME 7
- uint32_t ble_ots_object_refresh_current(ble_ots_object_chars_t * p_ots_object_chars)
- {
- uint32_t err_code;
- ble_ots_object_t * p_obj;
- p_obj = p_ots_object_chars->p_ots->p_current_object;
- if (p_obj == NULL)
- {
- // Clear all characteristics
- return NRF_SUCCESS;
- }
- // obtain the largest necessary buffer
- typedef union {
- uint8_t type_buf[sizeof(ble_ots_obj_type_t)+sizeof(uint8_t)];
- uint8_t size_buf[2*sizeof(uint32_t)];
- uint8_t prop_buf[sizeof(uint32_t)];
- } buffer_t;
- buffer_t buffer;
- ble_gatts_value_t gatts_value;
-
- memset(&gatts_value, 0, sizeof(gatts_value));
- // name
- gatts_value.len = strlen((const char *)p_obj->name) + 1;
- gatts_value.p_value = p_obj->name;
- err_code = sd_ble_gatts_value_set(p_ots_object_chars->p_ots->conn_handle,
- p_ots_object_chars->obj_name_handles.value_handle,
- &gatts_value);
- if (err_code != NRF_SUCCESS)
- {
- return err_code;
- }
- // type
- if (p_obj->type.len == sizeof(uint16_t))
- {
- gatts_value.len = uint16_encode(p_obj->type.param.type16, buffer.type_buf);
- gatts_value.p_value = buffer.type_buf;
- err_code = sd_ble_gatts_value_set(p_ots_object_chars->p_ots->conn_handle,
- p_ots_object_chars->obj_type_handles.value_handle,
- &gatts_value);
- }
- else
- {
- gatts_value.len = uint16_encode(p_obj->type.param.type16, buffer.type_buf);
- gatts_value.p_value = p_obj->type.param.type128;
- err_code = sd_ble_gatts_value_set(p_ots_object_chars->p_ots->conn_handle,
- p_ots_object_chars->obj_type_handles.value_handle,
- &gatts_value);
- }
- if (err_code != NRF_SUCCESS)
- {
- return err_code;
- }
- gatts_value.len = uint32_encode(p_obj->current_size, &buffer.size_buf[0]);
- gatts_value.len += uint32_encode(p_obj->alloc_len, &buffer.size_buf[gatts_value.len]);
- gatts_value.p_value = &buffer.size_buf[0];
- err_code = sd_ble_gatts_value_set(p_ots_object_chars->p_ots->conn_handle,
- p_ots_object_chars->obj_size_handles.value_handle,
- &gatts_value);
- if (err_code != NRF_SUCCESS)
- {
- return err_code;
- }
- gatts_value.len = uint32_encode(p_obj->properties.raw, buffer.prop_buf);
- gatts_value.p_value = buffer.prop_buf;
- err_code = sd_ble_gatts_value_set(p_ots_object_chars->p_ots->conn_handle,
- p_ots_object_chars->obj_properties_handles.value_handle,
- &gatts_value);
- if (err_code != NRF_SUCCESS)
- {
- return err_code;
- }
- return NRF_SUCCESS;
- }
- /**@brief Function for adding the object name characteristic.
- *
- * @param[in] p_ots_object_chars Pointer the the object characteristics.
- * @param[in] service_handle The service handle where the characteristic should be added.
- * @param[in] read_access The read security level for the characteristic.
- * @param[in] write_access The write security level for the characteristic.
- *
- * @return NRF_SUCCESS if the characteristic was successfully added, else a return code from
- * characteristic_add().
- */
- static uint32_t obj_name_char_add(ble_ots_object_chars_t * const p_ots_object_chars,
- uint16_t service_handle,
- security_req_t read_access,
- security_req_t write_access)
- {
- ble_add_char_params_t add_char_params;
- memset(&add_char_params, 0, sizeof(add_char_params));
- add_char_params.uuid = BLE_UUID_OTS_OBJECT_NAME;
- add_char_params.uuid_type = BLE_UUID_TYPE_BLE;
- add_char_params.max_len = BLE_OTS_NAME_MAX_SIZE;
- add_char_params.is_var_len = 1;
- add_char_params.char_props.read = 1;
- add_char_params.read_access = read_access;
- add_char_params.char_props.write = 0;
- return characteristic_add(service_handle,
- &add_char_params,
- &p_ots_object_chars->obj_name_handles);
- }
- /**@brief Function for adding the object type characteristic.
- *
- * @param[in] p_ots_object_chars Pointer the the object characteristics.
- * @param[in] service_handle The service handle where the characteristic should be added.
- * @param[in] read_access The read security level for the characteristic.
- *
- * @return NRF_SUCCESS if the characteristic was successfully added, else a return code from
- * characteristic_add().
- */
- static uint32_t obj_type_char_add(ble_ots_object_chars_t * const p_ots_object_chars,
- uint16_t service_handle,
- security_req_t read_access)
- {
- ble_add_char_params_t add_char_params;
- memset(&add_char_params, 0, sizeof(add_char_params));
- add_char_params.uuid = BLE_UUID_OTS_OBJECT_TYPE;
- add_char_params.uuid_type = BLE_UUID_TYPE_BLE;
- add_char_params.max_len = sizeof(ble_ots_obj_type_t);
- add_char_params.is_var_len = 1;
- add_char_params.char_props.read = 1;
- add_char_params.read_access = read_access;
- return characteristic_add(service_handle,
- &add_char_params,
- &p_ots_object_chars->obj_type_handles);
- }
- /**@brief Function for adding the object size characteristic.
- *
- * @param[in] p_ots_object_chars Pointer the the object characteristics.
- * @param[in] service_handle The service handle where the characteristic should be added.
- * @param[in] read_access The read security level for the characteristic.
- *
- * @return NRF_SUCCESS if the characteristic was successfully added, else a return code from
- * characteristic_add().
- */
- static uint32_t obj_size_char_add(ble_ots_object_chars_t * const p_ots_object_chars,
- uint16_t service_handle,
- security_req_t read_access)
- {
- ble_add_char_params_t add_char_params;
- memset(&add_char_params, 0, sizeof(add_char_params));
- add_char_params.uuid = BLE_UUID_OTS_OBJECT_SIZE;
- add_char_params.uuid_type = BLE_UUID_TYPE_BLE;
- add_char_params.max_len = NRF_BLE_OTS_SIZE_CHAR_LEN;
- add_char_params.is_var_len = 0;
- add_char_params.char_props.read = 1;
- add_char_params.read_access = read_access;
- return characteristic_add(service_handle,
- &add_char_params,
- &p_ots_object_chars->obj_size_handles);
- }
- /**@brief Function for adding the object properties characteristic.
- *
- * @param[in] p_ots_object_chars Pointer the the object characteristics.
- * @param[in] service_handle The service handle where the characteristic should be added.
- * @param[in] read_access The read security level for the characteristic.
- * @param[in] write_access The write security level for the characteristic.
- *
- * @return NRF_SUCCESS if the characteristic was successfully added, else a return code from
- * characteristic_add().
- */
- static uint32_t obj_prop_char_add(ble_ots_object_chars_t * const p_ots_object_chars,
- uint16_t service_handle,
- security_req_t read_access,
- security_req_t write_access)
- {
- ble_add_char_params_t add_char_params;
- memset(&add_char_params, 0, sizeof(add_char_params));
- add_char_params.uuid = BLE_UUID_OTS_OBJECT_PROPERTIES;
- add_char_params.uuid_type = BLE_UUID_TYPE_BLE;
- add_char_params.max_len = sizeof(uint32_t);
- add_char_params.is_var_len = 0;
- add_char_params.char_props.read = 1;
- add_char_params.read_access = read_access;
- add_char_params.is_defered_write = 1;
- add_char_params.write_access = write_access;
- return characteristic_add(service_handle,
- &add_char_params,
- &p_ots_object_chars->obj_properties_handles);
- }
- uint32_t ble_ots_object_representation_init(ble_ots_object_chars_t * p_ots_object_chars,
- ble_ots_object_chars_init_t * p_ots_object_chars_init)
- {
- if (p_ots_object_chars == NULL || p_ots_object_chars_init == NULL)
- {
- return NRF_ERROR_NULL;
- }
- uint32_t err_code;
- p_ots_object_chars->p_ots = p_ots_object_chars_init->p_ots;
- err_code = obj_name_char_add(p_ots_object_chars,
- p_ots_object_chars_init->p_ots->service_handle,
- p_ots_object_chars_init->name_read_access,
- p_ots_object_chars_init->name_write_access);
- if (err_code != NRF_SUCCESS)
- {
- return err_code;
- }
- err_code = obj_type_char_add(p_ots_object_chars,
- p_ots_object_chars_init->p_ots->service_handle,
- p_ots_object_chars_init->type_read_access);
- if (err_code != NRF_SUCCESS)
- {
- return err_code;
- }
- err_code = obj_size_char_add(p_ots_object_chars,
- p_ots_object_chars_init->p_ots->service_handle,
- p_ots_object_chars_init->size_read_access);
- if (err_code != NRF_SUCCESS)
- {
- return err_code;
- }
- err_code = obj_prop_char_add(p_ots_object_chars,
- p_ots_object_chars_init->p_ots->service_handle,
- p_ots_object_chars_init->properties_read_access,
- p_ots_object_chars_init->properties_write_access);
- if (err_code != NRF_SUCCESS)
- {
- return err_code;
- }
- return ble_ots_object_refresh_current(p_ots_object_chars);
- }
- uint32_t ble_ots_object_set_name(ble_ots_object_chars_t * p_ots_object_chars,
- ble_ots_object_t * p_object,
- const char * new_name)
- {
- if (p_ots_object_chars == NULL || p_object == NULL || new_name == NULL)
- {
- return NRF_ERROR_NULL;
- }
- strncpy((char *)p_object->name, new_name, BLE_OTS_NAME_MAX_SIZE);
- if (p_object == p_ots_object_chars->p_ots->p_current_object)
- {
- // update characteristic
- uint32_t err_code;
- ble_gatts_value_t gatts_value;
-
- memset(&gatts_value, 0, sizeof(gatts_value));
- gatts_value.len = strlen((const char *)p_object->name) + 1;
- gatts_value.p_value = p_object->name;
- err_code = sd_ble_gatts_value_set(p_ots_object_chars->p_ots->conn_handle,
- p_ots_object_chars->obj_name_handles.value_handle,
- &gatts_value);
- if (err_code != NRF_SUCCESS)
- {
- return err_code;
- }
- }
- return NRF_SUCCESS;
- }
- uint32_t ble_ots_object_set_type(ble_ots_object_chars_t * p_ots_object_chars,
- ble_ots_object_t * p_object,
- ble_ots_obj_type_t * p_new_type)
- {
- if (p_ots_object_chars == NULL || p_object == NULL || p_new_type == NULL)
- {
- return NRF_ERROR_NULL;
- }
- if (p_new_type->len != sizeof(p_new_type->param.type16) && p_new_type->len != sizeof(p_new_type->param.type128))
- {
- return NRF_ERROR_INVALID_PARAM;
- }
- memcpy(&p_object->type, p_new_type, sizeof(ble_ots_obj_type_t));
- if (p_object == p_ots_object_chars->p_ots->p_current_object)
- {
- // update characteristic
- uint32_t err_code;
- uint8_t buffer[sizeof(p_new_type->param.type16)];
- ble_gatts_value_t gatts_value;
- memset(&gatts_value, 0, sizeof(gatts_value));
- if (p_object->type.len == sizeof(uint16_t))
- {
- gatts_value.len = uint16_encode(p_object->type.param.type16, buffer);
- gatts_value.p_value = buffer;
- err_code = sd_ble_gatts_value_set(p_ots_object_chars->p_ots->conn_handle,
- p_ots_object_chars->obj_type_handles.value_handle,
- &gatts_value);
- }
- else
- {
- gatts_value.len = uint16_encode(p_object->type.param.type16, buffer);
- gatts_value.p_value = p_object->type.param.type128;
- err_code = sd_ble_gatts_value_set(p_ots_object_chars->p_ots->conn_handle,
- p_ots_object_chars->obj_type_handles.value_handle,
- &gatts_value);
- }
- if (err_code != NRF_SUCCESS)
- {
- return err_code;
- }
- }
- return NRF_SUCCESS;
- }
- uint32_t ble_ots_object_set_current_size(ble_ots_object_chars_t * p_ots_object_chars,
- ble_ots_object_t * p_object,
- uint32_t new_current_size)
- {
- if (p_ots_object_chars == NULL || p_object == NULL)
- {
- return NRF_ERROR_NULL;
- }
- p_object->current_size = new_current_size;
- if (p_object == p_ots_object_chars->p_ots->p_current_object)
- {
- // update characteristic
- uint32_t err_code;
- uint8_t buffer[NRF_BLE_OTS_SIZE_CHAR_LEN];
- ble_gatts_value_t gatts_value;
- memset(&gatts_value, 0, sizeof(gatts_value));
- gatts_value.len = 0;
- gatts_value.len += uint32_encode(p_object->current_size, &buffer[gatts_value.len]);
- gatts_value.len += uint32_encode(p_object->alloc_len, &buffer[gatts_value.len]);
- gatts_value.p_value = &buffer[0];
- err_code = sd_ble_gatts_value_set(p_ots_object_chars->p_ots->conn_handle,
- p_ots_object_chars->obj_size_handles.value_handle,
- &gatts_value);
- if (err_code != NRF_SUCCESS)
- {
- return err_code;
- }
- }
- return NRF_SUCCESS;
- }
- /**@brief Function for handling write on object properties meta data.
- *
- * @param[in] p_ots_object_chars Pointer the the object characteristics.
- * @param[in] p_ble_evt Pointer to the event received from BLE stack.
- */
- static uint32_t on_obj_properties_write(ble_ots_object_chars_t * p_ots_object_chars,
- ble_evt_t const * p_ble_evt)
- {
- ble_gatts_rw_authorize_reply_params_t write_authorize_reply;
- ble_gatts_evt_write_t const * p_write_evt;
- p_write_evt = &p_ble_evt->evt.gatts_evt.params.authorize_request.request.write;
- write_authorize_reply.type = BLE_GATTS_AUTHORIZE_TYPE_WRITE;
- uint32_t raw_prop = uint32_decode(p_write_evt->data);
- if ((raw_prop & 0xFFFFFF80) != 0)
- {
- write_authorize_reply.params.write.gatt_status = BLE_OTS_WRITE_REQUEST_REJECTED;
- }
- else
- {
- p_ots_object_chars->p_ots->p_current_object->properties.raw = raw_prop;
- write_authorize_reply.params.write.gatt_status = BLE_GATT_STATUS_SUCCESS;
- ble_ots_evt_t ble_ots_evt;
- ble_ots_evt.type = BLE_OTS_EVT_OBJECT;
- ble_ots_evt.evt.object_evt.type = BLE_OTS_OBJECT_EVT_PROPERTIES_CHANGED;
- ble_ots_evt.evt.object_evt.evt.p_object = p_ots_object_chars->p_ots->p_current_object;
- p_ots_object_chars->p_ots->evt_handler(p_ots_object_chars->p_ots, &ble_ots_evt);
- }
- return sd_ble_gatts_rw_authorize_reply(p_ble_evt->evt.gatts_evt.conn_handle, &write_authorize_reply);
- }
- uint32_t ble_ots_object_set_properties(ble_ots_object_chars_t * p_ots_object_chars,
- ble_ots_object_t * p_object,
- ble_ots_obj_properties_t * p_new_properties)
- {
- if (p_ots_object_chars == NULL || p_object == NULL)
- {
- return NRF_ERROR_NULL;
- }
- memcpy(&p_object->properties, p_new_properties, sizeof(ble_ots_obj_properties_t));
- if (p_object == p_ots_object_chars->p_ots->p_current_object)
- {
- // update characteristic
- uint32_t err_code;
- uint8_t buffer[sizeof(ble_ots_obj_properties_t)];
- ble_gatts_value_t gatts_value;
-
- memset(&gatts_value, 0, sizeof(gatts_value));
- gatts_value.len = uint32_encode(p_object->properties.raw, buffer);
- gatts_value.p_value = buffer;
- err_code = sd_ble_gatts_value_set(p_ots_object_chars->p_ots->conn_handle,
- p_ots_object_chars->obj_properties_handles.value_handle,
- &gatts_value);
- if (err_code != NRF_SUCCESS)
- {
- return err_code;
- }
- }
- return NRF_SUCCESS;
- }
- /**@brief Function for handling the @ref BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST event.
- *
- * @param[in] p_ots_object_chars Pointer the the object characteristics.
- * @param[in] p_ble_evt Pointer to the event received from BLE stack.
- */
- static void on_rw_auth_req(ble_ots_object_chars_t * p_ots_object_chars, ble_evt_t const * p_ble_evt)
- {
- uint32_t err_code;
- ble_gatts_evt_rw_authorize_request_t const * p_authorize_request;
- p_authorize_request = &(p_ble_evt->evt.gatts_evt.params.authorize_request);
- if (p_authorize_request->type == BLE_GATTS_AUTHORIZE_TYPE_WRITE)
- {
- if (p_authorize_request->request.write.handle == p_ots_object_chars->obj_name_handles.value_handle)
- {
- //err_code = on_name_prepare_write(p_ots_object_chars, p_ble_evt);
- // if (err_code != NRF_SUCCESS)
- // {
- // p_ots_object_chars->p_ots->error_handler(err_code);
- // }
- }
- else
- if (p_authorize_request->request.write.handle == p_ots_object_chars->obj_properties_handles.value_handle)
- {
- err_code = on_obj_properties_write(p_ots_object_chars, p_ble_evt);
- if (err_code != NRF_SUCCESS)
- {
- p_ots_object_chars->p_ots->error_handler(err_code);
- }
- }
- }
- }
- void ble_ots_object_on_ble_evt(ble_ots_object_chars_t * p_ots_chars, ble_evt_t const * p_ble_evt)
- {
- if ((p_ots_chars == NULL) || (p_ble_evt == NULL))
- {
- return;
- }
- // uint32_t err_code;
- switch (p_ble_evt->header.evt_id)
- {
- case BLE_GAP_EVT_CONNECTED:
- // err_code = ble_ots_object_refresh_current(p_ots_chars);
- // if (err_code != NRF_SUCCESS)
- // {
- // p_ots_chars->p_ots->error_handler(err_code);
- // }
- break;
- case BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST:
- on_rw_auth_req(p_ots_chars, p_ble_evt);
- break;
- default:
- // No implementation needed.
- break;
- }
- }
|