1343 lines
45 KiB
C++
1343 lines
45 KiB
C++
/******************************************************************************
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*
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* Copyright (C) 1999-2012 Broadcom Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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/******************************************************************************
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*
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* this file contains GATT interface functions
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*
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******************************************************************************/
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#include "bt_target.h"
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#include <base/strings/stringprintf.h>
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#include <stdio.h>
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#include <string.h>
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#include "bt_common.h"
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#include "btm_int.h"
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#include "device/include/controller.h"
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#include "gatt_api.h"
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#include "gatt_int.h"
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#include "l2c_api.h"
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using base::StringPrintf;
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/**
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* Add an service handle range to the list in decending order of the start
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* handle. Return reference to the newly added element.
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**/
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tGATT_HDL_LIST_ELEM& gatt_add_an_item_to_list(uint16_t s_handle) {
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auto lst_ptr = gatt_cb.hdl_list_info;
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auto it = lst_ptr->begin();
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for (; it != lst_ptr->end(); it++) {
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if (s_handle > it->asgn_range.s_handle) break;
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}
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auto rit = lst_ptr->emplace(it);
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return *rit;
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}
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/*****************************************************************************
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*
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* GATT SERVER API
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*
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*****************************************************************************/
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/*******************************************************************************
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*
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* Function GATTS_AddHandleRange
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*
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* Description This function add the allocated handles range for the
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* specified application UUID, service UUID and service
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* instance
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*
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* Parameter p_hndl_range: pointer to allocated handles information
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*
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**/
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void GATTS_AddHandleRange(tGATTS_HNDL_RANGE* p_hndl_range) {
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gatt_add_an_item_to_list(p_hndl_range->s_handle);
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}
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/*******************************************************************************
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*
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* Function GATTS_NVRegister
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*
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* Description Application manager calls this function to register for
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* NV save callback function. There can be one and only one
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* NV save callback function.
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*
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* Parameter p_cb_info : callback informaiton
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*
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* Returns true if registered OK, else false
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*
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******************************************************************************/
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bool GATTS_NVRegister(tGATT_APPL_INFO* p_cb_info) {
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bool status = false;
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if (p_cb_info) {
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gatt_cb.cb_info = *p_cb_info;
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status = true;
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gatt_init_srv_chg();
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}
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return status;
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}
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static uint8_t BASE_UUID[16] = {0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80,
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0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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static int uuidType(unsigned char* p_uuid) {
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if (memcmp(p_uuid, BASE_UUID, 12) != 0) return LEN_UUID_128;
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if (memcmp(p_uuid + 14, BASE_UUID + 14, 2) != 0) return LEN_UUID_32;
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return LEN_UUID_16;
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}
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/*******************************************************************************
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* BTIF -> BTA conversion functions
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******************************************************************************/
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static void btif_to_bta_uuid(tBT_UUID* p_dest, bt_uuid_t* p_src) {
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char* p_byte = (char*)p_src;
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int i = 0;
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p_dest->len = uuidType(p_src->uu);
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switch (p_dest->len) {
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case LEN_UUID_16:
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p_dest->uu.uuid16 = (p_src->uu[13] << 8) + p_src->uu[12];
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break;
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case LEN_UUID_32:
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p_dest->uu.uuid32 = (p_src->uu[15] << 24) + (p_src->uu[14] << 16) +
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(p_src->uu[13] << 8) + p_src->uu[12];
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break;
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case LEN_UUID_128:
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for (i = 0; i != 16; ++i) p_dest->uu.uuid128[i] = p_byte[i];
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break;
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default:
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LOG(ERROR) << __func__ << ": Unknown UUID length %d!" << +p_dest->len;
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break;
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}
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}
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void uuid_128_from_16(bt_uuid_t* uuid, uint16_t uuid16) {
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memcpy(uuid, &BASE_UUID, sizeof(bt_uuid_t));
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uuid->uu[13] = (uint8_t)((0xFF00 & uuid16) >> 8);
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uuid->uu[12] = (uint8_t)(0x00FF & uuid16);
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}
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static uint16_t compute_service_size(btgatt_db_element_t* service, int count) {
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int db_size = 0;
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btgatt_db_element_t* el = service;
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for (int i = 0; i < count; i++, el++)
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if (el->type == BTGATT_DB_PRIMARY_SERVICE ||
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el->type == BTGATT_DB_SECONDARY_SERVICE ||
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el->type == BTGATT_DB_DESCRIPTOR ||
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el->type == BTGATT_DB_INCLUDED_SERVICE)
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db_size += 1;
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else if (el->type == BTGATT_DB_CHARACTERISTIC)
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db_size += 2;
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else
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LOG(ERROR) << __func__ << ": Unknown element type: " << el->type;
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return db_size;
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}
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static bool is_gatt_attr_type(const tBT_UUID& uuid) {
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if (uuid.len == LEN_UUID_16 && (uuid.uu.uuid16 == GATT_UUID_PRI_SERVICE ||
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uuid.uu.uuid16 == GATT_UUID_SEC_SERVICE ||
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uuid.uu.uuid16 == GATT_UUID_INCLUDE_SERVICE ||
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uuid.uu.uuid16 == GATT_UUID_CHAR_DECLARE)) {
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return true;
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}
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return false;
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}
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/** Update the the last primary info for the service list info */
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static void gatt_update_last_pri_srv_info() {
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gatt_cb.last_primary_s_handle = 0;
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for (tGATT_SRV_LIST_ELEM& el : *gatt_cb.srv_list_info)
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if (el.is_primary) gatt_cb.last_primary_s_handle = el.s_hdl;
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}
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/*******************************************************************************
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*
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* Function GATTS_AddService
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*
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* Description This function is called to add GATT service.
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*
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* Parameter gatt_if : application if
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* service : pseudo-representation of service and it's content
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* count : size of service
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*
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* Returns on success GATT_SERVICE_STARTED is returned, and
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* attribute_handle field inside service elements are filled.
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* on error error status is returned.
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*
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******************************************************************************/
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uint16_t GATTS_AddService(tGATT_IF gatt_if, btgatt_db_element_t* service,
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int count) {
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uint16_t s_hdl = 0;
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bool save_hdl = false;
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tGATT_REG* p_reg = gatt_get_regcb(gatt_if);
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tBT_UUID* p_app_uuid128;
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bool is_pri = (service->type == BTGATT_DB_PRIMARY_SERVICE) ? true : false;
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tBT_UUID svc_uuid;
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btif_to_bta_uuid(&svc_uuid, &service->uuid);
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LOG(INFO) << __func__;
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if (p_reg == NULL) {
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LOG(ERROR) << "Inavlid gatt_if=" << +gatt_if;
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return GATT_INTERNAL_ERROR;
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}
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p_app_uuid128 = &p_reg->app_uuid128;
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uint16_t num_handles = compute_service_size(service, count);
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if ((svc_uuid.len == LEN_UUID_16) &&
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(svc_uuid.uu.uuid16 == UUID_SERVCLASS_GATT_SERVER)) {
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s_hdl = gatt_cb.hdl_cfg.gatt_start_hdl;
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} else if ((svc_uuid.len == LEN_UUID_16) &&
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(svc_uuid.uu.uuid16 == UUID_SERVCLASS_GAP_SERVER)) {
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s_hdl = gatt_cb.hdl_cfg.gap_start_hdl;
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} else {
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if (!gatt_cb.hdl_list_info->empty()) {
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s_hdl = gatt_cb.hdl_list_info->front().asgn_range.e_handle + 1;
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}
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if (s_hdl < gatt_cb.hdl_cfg.app_start_hdl)
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s_hdl = gatt_cb.hdl_cfg.app_start_hdl;
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save_hdl = true;
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}
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/* check for space */
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if (num_handles > (0xFFFF - s_hdl + 1)) {
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LOG(ERROR) << StringPrintf(
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"GATTS_ReserveHandles: no handles, s_hdl: %u needed: %u", s_hdl,
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num_handles);
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return GATT_INTERNAL_ERROR;
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}
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tGATT_HDL_LIST_ELEM& list = gatt_add_an_item_to_list(s_hdl);
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list.asgn_range.app_uuid128 = *p_app_uuid128;
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list.asgn_range.svc_uuid = svc_uuid;
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list.asgn_range.s_handle = s_hdl;
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list.asgn_range.e_handle = s_hdl + num_handles - 1;
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list.asgn_range.is_primary = is_pri;
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if (save_hdl) {
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if (gatt_cb.cb_info.p_nv_save_callback)
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(*gatt_cb.cb_info.p_nv_save_callback)(true, &list.asgn_range);
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}
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gatts_init_service_db(list.svc_db, &svc_uuid, is_pri, s_hdl, num_handles);
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VLOG(1) << StringPrintf(
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"%s: handles needed:%u s_hdl=%u e_hdl=%u %s[%x] is_primary=%d", __func__,
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num_handles, list.asgn_range.s_handle, list.asgn_range.e_handle,
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((list.asgn_range.svc_uuid.len == 2) ? "uuid16" : "uuid128"),
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list.asgn_range.svc_uuid.uu.uuid16, list.asgn_range.is_primary);
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service->attribute_handle = s_hdl;
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btgatt_db_element_t* el = service + 1;
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for (int i = 0; i < count - 1; i++, el++) {
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tBT_UUID uuid;
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btif_to_bta_uuid(&uuid, &el->uuid);
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if (el->type == BTGATT_DB_CHARACTERISTIC) {
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/* data validity checking */
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if (((el->properties & GATT_CHAR_PROP_BIT_AUTH) &&
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!(el->permissions & GATT_WRITE_SIGNED_PERM)) ||
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((el->permissions & GATT_WRITE_SIGNED_PERM) &&
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!(el->properties & GATT_CHAR_PROP_BIT_AUTH))) {
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VLOG(1) << StringPrintf(
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"Invalid configuration property=0x%02x perm=0x%04x ",
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el->properties, el->permissions);
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return GATT_INTERNAL_ERROR;
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}
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if (is_gatt_attr_type(uuid)) {
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LOG(ERROR) << StringPrintf(
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"%s: attept to add characteristic with UUID equal to GATT "
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"Attribute Type 0x%04x ",
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__func__, uuid.uu.uuid16);
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return GATT_INTERNAL_ERROR;
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}
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el->attribute_handle = gatts_add_characteristic(
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list.svc_db, el->permissions, el->properties, uuid);
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} else if (el->type == BTGATT_DB_DESCRIPTOR) {
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if (is_gatt_attr_type(uuid)) {
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LOG(ERROR) << StringPrintf(
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"%s: attept to add descriptor with UUID equal to GATT "
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"Attribute Type 0x%04x ",
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__func__, uuid.uu.uuid16);
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return GATT_INTERNAL_ERROR;
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}
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el->attribute_handle =
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gatts_add_char_descr(list.svc_db, el->permissions, uuid);
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} else if (el->type == BTGATT_DB_INCLUDED_SERVICE) {
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tGATT_HDL_LIST_ELEM* p_incl_decl;
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p_incl_decl = gatt_find_hdl_buffer_by_handle(el->attribute_handle);
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if (p_incl_decl == nullptr) {
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VLOG(1) << "Included Service not created";
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return GATT_INTERNAL_ERROR;
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}
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el->attribute_handle = gatts_add_included_service(
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list.svc_db, p_incl_decl->asgn_range.s_handle,
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p_incl_decl->asgn_range.e_handle, p_incl_decl->asgn_range.svc_uuid);
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}
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}
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LOG(INFO) << __func__ << ": service parsed correctly, now starting";
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/*this is a new application service start */
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// find a place for this service in the list
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auto lst_ptr = gatt_cb.srv_list_info;
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auto it = lst_ptr->begin();
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for (; it != lst_ptr->end(); it++) {
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if (list.asgn_range.s_handle < it->s_hdl) break;
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}
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auto rit = lst_ptr->emplace(it);
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tGATT_SRV_LIST_ELEM& elem = *rit;
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elem.gatt_if = gatt_if;
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elem.s_hdl = list.asgn_range.s_handle;
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elem.e_hdl = list.asgn_range.e_handle;
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elem.p_db = &list.svc_db;
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elem.is_primary = list.asgn_range.is_primary;
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memcpy(&elem.app_uuid, &list.asgn_range.app_uuid128, sizeof(tBT_UUID));
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elem.type = list.asgn_range.is_primary ? GATT_UUID_PRI_SERVICE
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: GATT_UUID_SEC_SERVICE;
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if (elem.type == GATT_UUID_PRI_SERVICE) {
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tBT_UUID* p_uuid = gatts_get_service_uuid(elem.p_db);
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elem.sdp_handle = gatt_add_sdp_record(p_uuid, elem.s_hdl, elem.e_hdl);
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} else {
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elem.sdp_handle = 0;
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}
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gatt_update_last_pri_srv_info();
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VLOG(1) << StringPrintf(
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"%s: allocated el: s_hdl=%d e_hdl=%d type=0x%x sdp_hdl=0x%x", __func__,
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elem.s_hdl, elem.e_hdl, elem.type, elem.sdp_handle);
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gatt_proc_srv_chg();
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return GATT_SERVICE_STARTED;
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}
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bool is_active_service(tBT_UUID* p_app_uuid128, tBT_UUID* p_svc_uuid,
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uint16_t start_handle) {
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for (auto& info : *gatt_cb.srv_list_info) {
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tBT_UUID* p_this_uuid = gatts_get_service_uuid(info.p_db);
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if (p_this_uuid && gatt_uuid_compare(*p_app_uuid128, info.app_uuid) &&
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gatt_uuid_compare(*p_svc_uuid, *p_this_uuid) &&
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(start_handle == info.s_hdl)) {
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LOG(ERROR) << "Active Service Found";
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gatt_dbg_display_uuid(*p_svc_uuid);
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return true;
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}
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}
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return false;
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}
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/*******************************************************************************
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*
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* Function GATTS_DeleteService
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*
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* Description This function is called to delete a service.
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*
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* Parameter gatt_if : application interface
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* p_svc_uuid : service UUID
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* start_handle : start handle of the service
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*
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* Returns true if the operation succeeded, false if the handle block
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* was not found.
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*
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******************************************************************************/
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bool GATTS_DeleteService(tGATT_IF gatt_if, tBT_UUID* p_svc_uuid,
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uint16_t svc_inst) {
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VLOG(1) << __func__;
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tGATT_REG* p_reg = gatt_get_regcb(gatt_if);
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if (p_reg == NULL) {
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LOG(ERROR) << "Applicaiton not foud";
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return false;
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}
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tBT_UUID* p_app_uuid128 = &p_reg->app_uuid128;
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auto it = gatt_find_hdl_buffer_by_app_id(p_app_uuid128, p_svc_uuid, svc_inst);
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if (it == gatt_cb.hdl_list_info->end()) {
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LOG(ERROR) << "No Service found";
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return false;
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}
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gatt_proc_srv_chg();
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if (is_active_service(p_app_uuid128, p_svc_uuid, svc_inst)) {
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GATTS_StopService(it->asgn_range.s_handle);
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}
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VLOG(1) << StringPrintf("released handles s_hdl=%u e_hdl=%u",
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it->asgn_range.s_handle, it->asgn_range.e_handle);
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if ((it->asgn_range.s_handle >= gatt_cb.hdl_cfg.app_start_hdl) &&
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gatt_cb.cb_info.p_nv_save_callback)
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(*gatt_cb.cb_info.p_nv_save_callback)(false, &it->asgn_range);
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gatt_cb.hdl_list_info->erase(it);
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return true;
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}
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/*******************************************************************************
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*
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* Function GATTS_StopService
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*
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* Description This function is called to stop a service
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*
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* Parameter service_handle : this is the start handle of a service
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*
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* Returns None.
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*
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******************************************************************************/
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void GATTS_StopService(uint16_t service_handle) {
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LOG(INFO) << __func__ << ": 0x" << std::hex << +service_handle;
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auto it = gatt_sr_find_i_rcb_by_handle(service_handle);
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if (it == gatt_cb.srv_list_info->end()) {
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LOG(ERROR) << StringPrintf("%s: service_handle: %u is not in use", __func__,
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service_handle);
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}
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if (it->sdp_handle) {
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SDP_DeleteRecord(it->sdp_handle);
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}
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gatt_cb.srv_list_info->erase(it);
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gatt_update_last_pri_srv_info();
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}
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/*******************************************************************************
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*
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* Function GATTs_HandleValueIndication
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*
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* Description This function sends a handle value indication to a client.
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*
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* Parameter conn_id: connection identifier.
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* attr_handle: Attribute handle of this handle value
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* indication.
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* val_len: Length of the indicated attribute value.
|
|
* p_val: Pointer to the indicated attribute value data.
|
|
*
|
|
* Returns GATT_SUCCESS if sucessfully sent or queued; otherwise error
|
|
* code.
|
|
*
|
|
******************************************************************************/
|
|
tGATT_STATUS GATTS_HandleValueIndication(uint16_t conn_id, uint16_t attr_handle,
|
|
uint16_t val_len, uint8_t* p_val) {
|
|
tGATT_STATUS cmd_status = GATT_NO_RESOURCES;
|
|
|
|
tGATT_VALUE indication;
|
|
BT_HDR* p_msg;
|
|
tGATT_VALUE* p_buf;
|
|
tGATT_IF gatt_if = GATT_GET_GATT_IF(conn_id);
|
|
uint8_t tcb_idx = GATT_GET_TCB_IDX(conn_id);
|
|
tGATT_REG* p_reg = gatt_get_regcb(gatt_if);
|
|
tGATT_TCB* p_tcb = gatt_get_tcb_by_idx(tcb_idx);
|
|
|
|
VLOG(1) << __func__;
|
|
if ((p_reg == NULL) || (p_tcb == NULL)) {
|
|
LOG(ERROR) << __func__ << ": Unknown conn_id: " << +conn_id;
|
|
return (tGATT_STATUS)GATT_INVALID_CONN_ID;
|
|
}
|
|
|
|
if (!GATT_HANDLE_IS_VALID(attr_handle)) return GATT_ILLEGAL_PARAMETER;
|
|
|
|
indication.conn_id = conn_id;
|
|
indication.handle = attr_handle;
|
|
indication.len = val_len;
|
|
memcpy(indication.value, p_val, val_len);
|
|
indication.auth_req = GATT_AUTH_REQ_NONE;
|
|
|
|
if (GATT_HANDLE_IS_VALID(p_tcb->indicate_handle)) {
|
|
VLOG(1) << "Add a pending indication";
|
|
p_buf = gatt_add_pending_ind(p_tcb, &indication);
|
|
if (p_buf != NULL) {
|
|
cmd_status = GATT_SUCCESS;
|
|
} else {
|
|
cmd_status = GATT_NO_RESOURCES;
|
|
}
|
|
} else {
|
|
tGATT_SR_MSG gatt_sr_msg;
|
|
gatt_sr_msg.attr_value = indication;
|
|
p_msg = attp_build_sr_msg(*p_tcb, GATT_HANDLE_VALUE_IND, &gatt_sr_msg);
|
|
if (p_msg != NULL) {
|
|
cmd_status = attp_send_sr_msg(*p_tcb, p_msg);
|
|
|
|
if (cmd_status == GATT_SUCCESS || cmd_status == GATT_CONGESTED) {
|
|
p_tcb->indicate_handle = indication.handle;
|
|
gatt_start_conf_timer(p_tcb);
|
|
}
|
|
}
|
|
}
|
|
return cmd_status;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function GATTS_HandleValueNotification
|
|
*
|
|
* Description This function sends a handle value notification to a client.
|
|
*
|
|
* Parameter conn_id: connection identifier.
|
|
* attr_handle: Attribute handle of this handle value
|
|
* indication.
|
|
* val_len: Length of the indicated attribute value.
|
|
* p_val: Pointer to the indicated attribute value data.
|
|
*
|
|
* Returns GATT_SUCCESS if sucessfully sent; otherwise error code.
|
|
*
|
|
******************************************************************************/
|
|
tGATT_STATUS GATTS_HandleValueNotification(uint16_t conn_id,
|
|
uint16_t attr_handle,
|
|
uint16_t val_len, uint8_t* p_val) {
|
|
tGATT_VALUE notif;
|
|
tGATT_IF gatt_if = GATT_GET_GATT_IF(conn_id);
|
|
uint8_t tcb_idx = GATT_GET_TCB_IDX(conn_id);
|
|
tGATT_REG* p_reg = gatt_get_regcb(gatt_if);
|
|
tGATT_TCB* p_tcb = gatt_get_tcb_by_idx(tcb_idx);
|
|
|
|
VLOG(1) << __func__;
|
|
|
|
if ((p_reg == NULL) || (p_tcb == NULL)) {
|
|
LOG(ERROR) << __func__ << "Unknown conn_id: " << conn_id;
|
|
return (tGATT_STATUS)GATT_INVALID_CONN_ID;
|
|
}
|
|
|
|
if (!GATT_HANDLE_IS_VALID(attr_handle)) {
|
|
return GATT_ILLEGAL_PARAMETER;
|
|
}
|
|
|
|
notif.handle = attr_handle;
|
|
notif.len = val_len;
|
|
memcpy(notif.value, p_val, val_len);
|
|
notif.auth_req = GATT_AUTH_REQ_NONE;
|
|
|
|
tGATT_STATUS cmd_sent;
|
|
tGATT_SR_MSG gatt_sr_msg;
|
|
gatt_sr_msg.attr_value = notif;
|
|
BT_HDR* p_buf =
|
|
attp_build_sr_msg(*p_tcb, GATT_HANDLE_VALUE_NOTIF, &gatt_sr_msg);
|
|
if (p_buf != NULL) {
|
|
cmd_sent = attp_send_sr_msg(*p_tcb, p_buf);
|
|
} else
|
|
cmd_sent = GATT_NO_RESOURCES;
|
|
return cmd_sent;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function GATTS_SendRsp
|
|
*
|
|
* Description This function sends the server response to client.
|
|
*
|
|
* Parameter conn_id: connection identifier.
|
|
* trans_id: transaction id
|
|
* status: response status
|
|
* p_msg: pointer to message parameters structure.
|
|
*
|
|
* Returns GATT_SUCCESS if sucessfully sent; otherwise error code.
|
|
*
|
|
******************************************************************************/
|
|
tGATT_STATUS GATTS_SendRsp(uint16_t conn_id, uint32_t trans_id,
|
|
tGATT_STATUS status, tGATTS_RSP* p_msg) {
|
|
tGATT_STATUS cmd_sent = GATT_ILLEGAL_PARAMETER;
|
|
tGATT_IF gatt_if = GATT_GET_GATT_IF(conn_id);
|
|
uint8_t tcb_idx = GATT_GET_TCB_IDX(conn_id);
|
|
tGATT_REG* p_reg = gatt_get_regcb(gatt_if);
|
|
tGATT_TCB* p_tcb = gatt_get_tcb_by_idx(tcb_idx);
|
|
|
|
VLOG(1) << __func__
|
|
<< StringPrintf(": conn_id: %u trans_id: %u Status: 0x%04x",
|
|
conn_id, trans_id, status);
|
|
|
|
if ((p_reg == NULL) || (p_tcb == NULL)) {
|
|
LOG(ERROR) << StringPrintf("Unknown conn_id: %u ", conn_id);
|
|
return (tGATT_STATUS)GATT_INVALID_CONN_ID;
|
|
}
|
|
|
|
if (p_tcb->sr_cmd.trans_id != trans_id) {
|
|
LOG(ERROR) << StringPrintf("conn_id: %u waiting for op_code = %02x",
|
|
conn_id, p_tcb->sr_cmd.op_code);
|
|
|
|
return (GATT_WRONG_STATE);
|
|
}
|
|
/* Process App response */
|
|
cmd_sent = gatt_sr_process_app_rsp(*p_tcb, gatt_if, trans_id,
|
|
p_tcb->sr_cmd.op_code, status, p_msg);
|
|
|
|
return cmd_sent;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
/* GATT Profile Srvr Functions */
|
|
/******************************************************************************/
|
|
|
|
/******************************************************************************/
|
|
/* */
|
|
/* GATT CLIENT APIs */
|
|
/* */
|
|
/******************************************************************************/
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function GATTC_ConfigureMTU
|
|
*
|
|
* Description This function is called to configure the ATT MTU size.
|
|
*
|
|
* Parameters conn_id: connection identifier.
|
|
* mtu - attribute MTU size..
|
|
*
|
|
* Returns GATT_SUCCESS if command started successfully.
|
|
*
|
|
******************************************************************************/
|
|
tGATT_STATUS GATTC_ConfigureMTU(uint16_t conn_id, uint16_t mtu) {
|
|
tGATT_IF gatt_if = GATT_GET_GATT_IF(conn_id);
|
|
uint8_t tcb_idx = GATT_GET_TCB_IDX(conn_id);
|
|
tGATT_TCB* p_tcb = gatt_get_tcb_by_idx(tcb_idx);
|
|
tGATT_REG* p_reg = gatt_get_regcb(gatt_if);
|
|
|
|
VLOG(1) << __func__ << StringPrintf("conn_id=%d mtu=%d", conn_id, mtu);
|
|
|
|
if ((p_tcb == NULL) || (p_reg == NULL) || (mtu < GATT_DEF_BLE_MTU_SIZE) ||
|
|
(mtu > GATT_MAX_MTU_SIZE)) {
|
|
return GATT_ILLEGAL_PARAMETER;
|
|
}
|
|
|
|
/* Validate that the link is BLE, not BR/EDR */
|
|
if (p_tcb->transport != BT_TRANSPORT_LE) {
|
|
return GATT_ERROR;
|
|
}
|
|
|
|
if (gatt_is_clcb_allocated(conn_id)) {
|
|
LOG(ERROR) << "GATT_BUSY conn_id = " << +conn_id;
|
|
return GATT_BUSY;
|
|
}
|
|
|
|
tGATT_CLCB* p_clcb = gatt_clcb_alloc(conn_id);
|
|
if (!p_clcb) return GATT_NO_RESOURCES;
|
|
|
|
p_clcb->p_tcb->payload_size = mtu;
|
|
p_clcb->operation = GATTC_OPTYPE_CONFIG;
|
|
tGATT_CL_MSG gatt_cl_msg;
|
|
gatt_cl_msg.mtu = mtu;
|
|
return attp_send_cl_msg(*p_clcb->p_tcb, p_clcb, GATT_REQ_MTU, &gatt_cl_msg);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function GATTC_Discover
|
|
*
|
|
* Description This function is called to do a discovery procedure on ATT
|
|
* server.
|
|
*
|
|
* Parameters conn_id: connection identifier.
|
|
* disc_type:discovery type.
|
|
* p_param: parameters of discovery requirement.
|
|
*
|
|
* Returns GATT_SUCCESS if command received/sent successfully.
|
|
*
|
|
******************************************************************************/
|
|
tGATT_STATUS GATTC_Discover(uint16_t conn_id, tGATT_DISC_TYPE disc_type,
|
|
tGATT_DISC_PARAM* p_param) {
|
|
tGATT_IF gatt_if = GATT_GET_GATT_IF(conn_id);
|
|
uint8_t tcb_idx = GATT_GET_TCB_IDX(conn_id);
|
|
tGATT_TCB* p_tcb = gatt_get_tcb_by_idx(tcb_idx);
|
|
tGATT_REG* p_reg = gatt_get_regcb(gatt_if);
|
|
|
|
LOG(INFO) << __func__
|
|
<< StringPrintf(" conn_id=%d disc_type=%d", conn_id, disc_type);
|
|
|
|
if ((p_tcb == NULL) || (p_reg == NULL) || (p_param == NULL) ||
|
|
(disc_type >= GATT_DISC_MAX)) {
|
|
LOG(ERROR) << StringPrintf("Illegal param: disc_type %d conn_id = %d",
|
|
disc_type, conn_id);
|
|
return GATT_ILLEGAL_PARAMETER;
|
|
}
|
|
|
|
if (!GATT_HANDLE_IS_VALID(p_param->s_handle) ||
|
|
!GATT_HANDLE_IS_VALID(p_param->e_handle) ||
|
|
/* search by type does not have a valid UUID param */
|
|
(disc_type == GATT_DISC_SRVC_BY_UUID && p_param->service.len == 0)) {
|
|
return GATT_ILLEGAL_PARAMETER;
|
|
}
|
|
|
|
if (gatt_is_clcb_allocated(conn_id)) {
|
|
LOG(ERROR) << __func__ << "GATT_BUSY conn_id = " << +conn_id;
|
|
return GATT_BUSY;
|
|
}
|
|
|
|
tGATT_CLCB* p_clcb = gatt_clcb_alloc(conn_id);
|
|
if (!p_clcb) return GATT_NO_RESOURCES;
|
|
|
|
p_clcb->operation = GATTC_OPTYPE_DISCOVERY;
|
|
p_clcb->op_subtype = disc_type;
|
|
p_clcb->s_handle = p_param->s_handle;
|
|
p_clcb->e_handle = p_param->e_handle;
|
|
p_clcb->uuid = p_param->service;
|
|
|
|
gatt_act_discovery(p_clcb);
|
|
return GATT_SUCCESS;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function GATTC_Read
|
|
*
|
|
* Description This function is called to read the value of an attribute
|
|
* from the server.
|
|
*
|
|
* Parameters conn_id: connection identifier.
|
|
* type - attribute read type.
|
|
* p_read - read operation parameters.
|
|
*
|
|
* Returns GATT_SUCCESS if command started successfully.
|
|
*
|
|
******************************************************************************/
|
|
tGATT_STATUS GATTC_Read(uint16_t conn_id, tGATT_READ_TYPE type,
|
|
tGATT_READ_PARAM* p_read) {
|
|
tGATT_IF gatt_if = GATT_GET_GATT_IF(conn_id);
|
|
uint8_t tcb_idx = GATT_GET_TCB_IDX(conn_id);
|
|
tGATT_TCB* p_tcb = gatt_get_tcb_by_idx(tcb_idx);
|
|
tGATT_REG* p_reg = gatt_get_regcb(gatt_if);
|
|
|
|
VLOG(1) << __func__ << StringPrintf(" conn_id=%d type=%d", conn_id, type);
|
|
|
|
if ((p_tcb == NULL) || (p_reg == NULL) || (p_read == NULL) ||
|
|
((type >= GATT_READ_MAX) || (type == 0))) {
|
|
LOG(ERROR) << StringPrintf(" Illegal param: conn_id %d, type 0%d,", conn_id,
|
|
type);
|
|
return GATT_ILLEGAL_PARAMETER;
|
|
}
|
|
|
|
if (gatt_is_clcb_allocated(conn_id)) {
|
|
LOG(ERROR) << StringPrintf(" GATT_BUSY conn_id = %d", conn_id);
|
|
return GATT_BUSY;
|
|
}
|
|
|
|
tGATT_CLCB* p_clcb = gatt_clcb_alloc(conn_id);
|
|
if (!p_clcb) return GATT_NO_RESOURCES;
|
|
|
|
p_clcb->operation = GATTC_OPTYPE_READ;
|
|
p_clcb->op_subtype = type;
|
|
p_clcb->auth_req = p_read->by_handle.auth_req;
|
|
p_clcb->counter = 0;
|
|
|
|
switch (type) {
|
|
case GATT_READ_BY_TYPE:
|
|
case GATT_READ_CHAR_VALUE:
|
|
p_clcb->s_handle = p_read->service.s_handle;
|
|
p_clcb->e_handle = p_read->service.e_handle;
|
|
memcpy(&p_clcb->uuid, &p_read->service.uuid, sizeof(tBT_UUID));
|
|
break;
|
|
case GATT_READ_MULTIPLE: {
|
|
p_clcb->s_handle = 0;
|
|
/* copy multiple handles in CB */
|
|
tGATT_READ_MULTI* p_read_multi =
|
|
(tGATT_READ_MULTI*)osi_malloc(sizeof(tGATT_READ_MULTI));
|
|
p_clcb->p_attr_buf = (uint8_t*)p_read_multi;
|
|
memcpy(p_read_multi, &p_read->read_multiple, sizeof(tGATT_READ_MULTI));
|
|
break;
|
|
}
|
|
case GATT_READ_BY_HANDLE:
|
|
case GATT_READ_PARTIAL:
|
|
memset(&p_clcb->uuid, 0, sizeof(tBT_UUID));
|
|
p_clcb->s_handle = p_read->by_handle.handle;
|
|
|
|
if (type == GATT_READ_PARTIAL) {
|
|
p_clcb->counter = p_read->partial.offset;
|
|
}
|
|
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* start security check */
|
|
gatt_security_check_start(p_clcb);
|
|
return GATT_SUCCESS;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function GATTC_Write
|
|
*
|
|
* Description This function is called to write the value of an attribute
|
|
* to the server.
|
|
*
|
|
* Parameters conn_id: connection identifier.
|
|
* type - attribute write type.
|
|
* p_write - write operation parameters.
|
|
*
|
|
* Returns GATT_SUCCESS if command started successfully.
|
|
*
|
|
******************************************************************************/
|
|
tGATT_STATUS GATTC_Write(uint16_t conn_id, tGATT_WRITE_TYPE type,
|
|
tGATT_VALUE* p_write) {
|
|
tGATT_IF gatt_if = GATT_GET_GATT_IF(conn_id);
|
|
uint8_t tcb_idx = GATT_GET_TCB_IDX(conn_id);
|
|
tGATT_TCB* p_tcb = gatt_get_tcb_by_idx(tcb_idx);
|
|
tGATT_REG* p_reg = gatt_get_regcb(gatt_if);
|
|
|
|
if ((p_tcb == NULL) || (p_reg == NULL) || (p_write == NULL) ||
|
|
((type != GATT_WRITE) && (type != GATT_WRITE_PREPARE) &&
|
|
(type != GATT_WRITE_NO_RSP))) {
|
|
LOG(ERROR) << __func__
|
|
<< StringPrintf(" Illegal param: conn_id %d, type 0%d,", conn_id,
|
|
type);
|
|
return GATT_ILLEGAL_PARAMETER;
|
|
}
|
|
|
|
if (gatt_is_clcb_allocated(conn_id)) {
|
|
LOG(ERROR) << StringPrintf("GATT_BUSY conn_id = %d", conn_id);
|
|
return GATT_BUSY;
|
|
}
|
|
|
|
tGATT_CLCB* p_clcb = gatt_clcb_alloc(conn_id);
|
|
if (!p_clcb) return GATT_NO_RESOURCES;
|
|
|
|
p_clcb->operation = GATTC_OPTYPE_WRITE;
|
|
p_clcb->op_subtype = type;
|
|
p_clcb->auth_req = p_write->auth_req;
|
|
|
|
p_clcb->p_attr_buf = (uint8_t*)osi_malloc(sizeof(tGATT_VALUE));
|
|
memcpy(p_clcb->p_attr_buf, (void*)p_write, sizeof(tGATT_VALUE));
|
|
|
|
tGATT_VALUE* p = (tGATT_VALUE*)p_clcb->p_attr_buf;
|
|
if (type == GATT_WRITE_PREPARE) {
|
|
p_clcb->start_offset = p_write->offset;
|
|
p->offset = 0;
|
|
}
|
|
|
|
gatt_security_check_start(p_clcb);
|
|
return GATT_SUCCESS;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function GATTC_ExecuteWrite
|
|
*
|
|
* Description This function is called to send an Execute write request to
|
|
* the server.
|
|
*
|
|
* Parameters conn_id: connection identifier.
|
|
* is_execute - to execute or cancel the prepared write
|
|
* request(s)
|
|
*
|
|
* Returns GATT_SUCCESS if command started successfully.
|
|
*
|
|
******************************************************************************/
|
|
tGATT_STATUS GATTC_ExecuteWrite(uint16_t conn_id, bool is_execute) {
|
|
tGATT_IF gatt_if = GATT_GET_GATT_IF(conn_id);
|
|
uint8_t tcb_idx = GATT_GET_TCB_IDX(conn_id);
|
|
tGATT_TCB* p_tcb = gatt_get_tcb_by_idx(tcb_idx);
|
|
tGATT_REG* p_reg = gatt_get_regcb(gatt_if);
|
|
|
|
VLOG(1) << __func__
|
|
<< StringPrintf(": conn_id=%d is_execute=%d", conn_id, is_execute);
|
|
|
|
if ((p_tcb == NULL) || (p_reg == NULL)) {
|
|
LOG(ERROR) << StringPrintf(" Illegal param: conn_id %d", conn_id);
|
|
return GATT_ILLEGAL_PARAMETER;
|
|
}
|
|
|
|
if (gatt_is_clcb_allocated(conn_id)) {
|
|
LOG(ERROR) << StringPrintf(" GATT_BUSY conn_id = %d", conn_id);
|
|
return GATT_BUSY;
|
|
}
|
|
|
|
tGATT_CLCB* p_clcb = gatt_clcb_alloc(conn_id);
|
|
if (!p_clcb) return GATT_NO_RESOURCES;
|
|
|
|
p_clcb->operation = GATTC_OPTYPE_EXE_WRITE;
|
|
tGATT_EXEC_FLAG flag =
|
|
is_execute ? GATT_PREP_WRITE_EXEC : GATT_PREP_WRITE_CANCEL;
|
|
gatt_send_queue_write_cancel(*p_clcb->p_tcb, p_clcb, flag);
|
|
return GATT_SUCCESS;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function GATTC_SendHandleValueConfirm
|
|
*
|
|
* Description This function is called to send a handle value confirmation
|
|
* as response to a handle value notification from server.
|
|
*
|
|
* Parameters conn_id: connection identifier.
|
|
* handle: the handle of the attribute confirmation.
|
|
*
|
|
* Returns GATT_SUCCESS if command started successfully.
|
|
*
|
|
******************************************************************************/
|
|
tGATT_STATUS GATTC_SendHandleValueConfirm(uint16_t conn_id, uint16_t handle) {
|
|
VLOG(1) << __func__
|
|
<< StringPrintf(" conn_id=%d handle=0x%x", conn_id, handle);
|
|
|
|
tGATT_TCB* p_tcb = gatt_get_tcb_by_idx(GATT_GET_TCB_IDX(conn_id));
|
|
if (!p_tcb) {
|
|
LOG(ERROR) << StringPrintf(" Unknown conn_id: %u", conn_id);
|
|
return GATT_ILLEGAL_PARAMETER;
|
|
}
|
|
|
|
if (p_tcb->ind_count == 0) {
|
|
VLOG(1) << " conn_id: " << +conn_id
|
|
<< " ignored not waiting for indicaiton ack";
|
|
return GATT_SUCCESS;
|
|
}
|
|
|
|
alarm_cancel(p_tcb->ind_ack_timer);
|
|
|
|
VLOG(1) << "notif_count= " << p_tcb->ind_count;
|
|
/* send confirmation now */
|
|
tGATT_CL_MSG gatt_cl_msg;
|
|
gatt_cl_msg.handle = handle;
|
|
tGATT_STATUS ret =
|
|
attp_send_cl_msg(*p_tcb, nullptr, GATT_HANDLE_VALUE_CONF, &gatt_cl_msg);
|
|
|
|
p_tcb->ind_count = 0;
|
|
|
|
return ret;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
/* */
|
|
/* GATT APIs */
|
|
/* */
|
|
/******************************************************************************/
|
|
/*******************************************************************************
|
|
*
|
|
* Function GATT_SetIdleTimeout
|
|
*
|
|
* Description This function (common to both client and server) sets the
|
|
* idle timeout for a tansport connection
|
|
*
|
|
* Parameter bd_addr: target device bd address.
|
|
* idle_tout: timeout value in seconds.
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
void GATT_SetIdleTimeout(const RawAddress& bd_addr, uint16_t idle_tout,
|
|
tBT_TRANSPORT transport) {
|
|
tGATT_TCB* p_tcb;
|
|
bool status = false;
|
|
|
|
p_tcb = gatt_find_tcb_by_addr(bd_addr, transport);
|
|
if (p_tcb != NULL) {
|
|
if (p_tcb->att_lcid == L2CAP_ATT_CID) {
|
|
status = L2CA_SetFixedChannelTout(bd_addr, L2CAP_ATT_CID, idle_tout);
|
|
|
|
if (idle_tout == GATT_LINK_IDLE_TIMEOUT_WHEN_NO_APP)
|
|
L2CA_SetIdleTimeoutByBdAddr(p_tcb->peer_bda,
|
|
GATT_LINK_IDLE_TIMEOUT_WHEN_NO_APP,
|
|
BT_TRANSPORT_LE);
|
|
} else {
|
|
status = L2CA_SetIdleTimeout(p_tcb->att_lcid, idle_tout, false);
|
|
}
|
|
}
|
|
|
|
VLOG(1) << __func__
|
|
<< StringPrintf(" idle_tout=%d status=%d(1-OK 0-not performed)",
|
|
idle_tout, status);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function GATT_Register
|
|
*
|
|
* Description This function is called to register an application
|
|
* with GATT
|
|
*
|
|
* Parameter p_app_uuid128: Application UUID
|
|
* p_cb_info: callback functions.
|
|
*
|
|
* Returns 0 for error, otherwise the index of the client registered
|
|
* with GATT
|
|
*
|
|
******************************************************************************/
|
|
tGATT_IF GATT_Register(tBT_UUID* p_app_uuid128, tGATT_CBACK* p_cb_info) {
|
|
tGATT_REG* p_reg;
|
|
uint8_t i_gatt_if = 0;
|
|
tGATT_IF gatt_if = 0;
|
|
|
|
LOG(INFO) << __func__;
|
|
gatt_dbg_display_uuid(*p_app_uuid128);
|
|
|
|
for (i_gatt_if = 0, p_reg = gatt_cb.cl_rcb; i_gatt_if < GATT_MAX_APPS;
|
|
i_gatt_if++, p_reg++) {
|
|
if (p_reg->in_use &&
|
|
!memcmp(p_app_uuid128->uu.uuid128, p_reg->app_uuid128.uu.uuid128,
|
|
LEN_UUID_128)) {
|
|
LOG(ERROR) << "application already registered.";
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
for (i_gatt_if = 0, p_reg = gatt_cb.cl_rcb; i_gatt_if < GATT_MAX_APPS;
|
|
i_gatt_if++, p_reg++) {
|
|
if (!p_reg->in_use) {
|
|
memset(p_reg, 0, sizeof(tGATT_REG));
|
|
i_gatt_if++; /* one based number */
|
|
p_reg->app_uuid128 = *p_app_uuid128;
|
|
gatt_if = p_reg->gatt_if = (tGATT_IF)i_gatt_if;
|
|
p_reg->app_cb = *p_cb_info;
|
|
p_reg->in_use = true;
|
|
|
|
LOG(INFO) << "allocated gatt_if=" << +gatt_if;
|
|
return gatt_if;
|
|
}
|
|
}
|
|
|
|
LOG(ERROR) << "can't Register GATT client, MAX client reached: "
|
|
<< GATT_MAX_APPS;
|
|
return 0;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function GATT_Deregister
|
|
*
|
|
* Description This function deregistered the application from GATT.
|
|
*
|
|
* Parameters gatt_if: applicaiton interface.
|
|
*
|
|
* Returns None.
|
|
*
|
|
******************************************************************************/
|
|
void GATT_Deregister(tGATT_IF gatt_if) {
|
|
VLOG(1) << __func__ << " gatt_if=" << +gatt_if;
|
|
|
|
tGATT_REG* p_reg = gatt_get_regcb(gatt_if);
|
|
/* Index 0 is GAP and is never deregistered */
|
|
if ((gatt_if == 0) || (p_reg == NULL)) {
|
|
LOG(ERROR) << "invalid gatt_if: " << +gatt_if;
|
|
return;
|
|
}
|
|
|
|
/* stop all services */
|
|
/* todo an applcaiton can not be deregistered if its services is also used by
|
|
other application
|
|
deregisteration need to bed performed in an orderly fashion
|
|
no check for now */
|
|
for (auto it = gatt_cb.srv_list_info->begin(); it != gatt_cb.srv_list_info->end(); ) {
|
|
if (it->gatt_if == gatt_if) {
|
|
GATTS_StopService(it++->s_hdl);
|
|
} else {
|
|
++it;
|
|
}
|
|
}
|
|
|
|
/* free all services db buffers if owned by this application */
|
|
gatt_free_srvc_db_buffer_app_id(&p_reg->app_uuid128);
|
|
|
|
/* When an application deregisters, check remove the link associated with the
|
|
* app */
|
|
tGATT_TCB* p_tcb;
|
|
int i, j;
|
|
for (i = 0, p_tcb = gatt_cb.tcb; i < GATT_MAX_PHY_CHANNEL; i++, p_tcb++) {
|
|
if (p_tcb->in_use) {
|
|
if (gatt_get_ch_state(p_tcb) != GATT_CH_CLOSE) {
|
|
gatt_update_app_use_link_flag(gatt_if, p_tcb, false, true);
|
|
}
|
|
|
|
tGATT_CLCB* p_clcb;
|
|
for (j = 0, p_clcb = &gatt_cb.clcb[j]; j < GATT_CL_MAX_LCB;
|
|
j++, p_clcb++) {
|
|
if (p_clcb->in_use && (p_clcb->p_reg->gatt_if == gatt_if) &&
|
|
(p_clcb->p_tcb->tcb_idx == p_tcb->tcb_idx)) {
|
|
alarm_cancel(p_clcb->gatt_rsp_timer_ent);
|
|
gatt_clcb_dealloc(p_clcb);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
gatt_deregister_bgdev_list(gatt_if);
|
|
|
|
memset(p_reg, 0, sizeof(tGATT_REG));
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function GATT_StartIf
|
|
*
|
|
* Description This function is called after registration to start
|
|
* receiving callbacks for registered interface. Function may
|
|
* call back with connection status and queued notifications
|
|
*
|
|
* Parameter gatt_if: applicaiton interface.
|
|
*
|
|
* Returns None.
|
|
*
|
|
******************************************************************************/
|
|
void GATT_StartIf(tGATT_IF gatt_if) {
|
|
tGATT_REG* p_reg;
|
|
tGATT_TCB* p_tcb;
|
|
RawAddress bda;
|
|
uint8_t start_idx, found_idx;
|
|
uint16_t conn_id;
|
|
tGATT_TRANSPORT transport;
|
|
|
|
VLOG(1) << __func__ << " gatt_if=" << gatt_if;
|
|
p_reg = gatt_get_regcb(gatt_if);
|
|
if (p_reg != NULL) {
|
|
start_idx = 0;
|
|
while (
|
|
gatt_find_the_connected_bda(start_idx, bda, &found_idx, &transport)) {
|
|
p_tcb = gatt_find_tcb_by_addr(bda, transport);
|
|
if (p_reg->app_cb.p_conn_cb && p_tcb) {
|
|
conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, gatt_if);
|
|
(*p_reg->app_cb.p_conn_cb)(gatt_if, bda, conn_id, true, 0, transport);
|
|
}
|
|
start_idx = ++found_idx;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function GATT_Connect
|
|
*
|
|
* Description This function initiate a connecttion to a remote device on
|
|
* GATT channel.
|
|
*
|
|
* Parameters gatt_if: applicaiton interface
|
|
* bd_addr: peer device address.
|
|
* is_direct: is a direct conenection or a background auto
|
|
* connection
|
|
*
|
|
* Returns true if connection started; false if connection start
|
|
* failure.
|
|
*
|
|
******************************************************************************/
|
|
bool GATT_Connect(tGATT_IF gatt_if, const RawAddress& bd_addr, bool is_direct,
|
|
tBT_TRANSPORT transport, bool opportunistic) {
|
|
uint8_t phy = controller_get_interface()->get_le_all_initiating_phys();
|
|
return GATT_Connect(gatt_if, bd_addr, is_direct, transport, opportunistic,
|
|
phy);
|
|
}
|
|
|
|
bool GATT_Connect(tGATT_IF gatt_if, const RawAddress& bd_addr, bool is_direct,
|
|
tBT_TRANSPORT transport, bool opportunistic,
|
|
uint8_t initiating_phys) {
|
|
tGATT_REG* p_reg;
|
|
bool status = false;
|
|
|
|
LOG(INFO) << __func__ << "gatt_if=" << +gatt_if << " " << bd_addr;
|
|
|
|
/* Make sure app is registered */
|
|
p_reg = gatt_get_regcb(gatt_if);
|
|
if (p_reg == NULL) {
|
|
LOG(ERROR) << "gatt_if = " << gatt_if << " is not registered";
|
|
return (false);
|
|
}
|
|
|
|
if (is_direct)
|
|
status = gatt_act_connect(p_reg, bd_addr, transport, opportunistic,
|
|
initiating_phys);
|
|
else {
|
|
if (transport == BT_TRANSPORT_LE)
|
|
status = gatt_update_auto_connect_dev(gatt_if, true, bd_addr);
|
|
else {
|
|
LOG(ERROR) << "Unsupported transport for background connection";
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function GATT_CancelConnect
|
|
*
|
|
* Description This function terminate the connection initaition to a
|
|
* remote device on GATT channel.
|
|
*
|
|
* Parameters gatt_if: client interface. If 0 used as unconditionally
|
|
* disconnect, typically used for direct connection
|
|
* cancellation.
|
|
* bd_addr: peer device address.
|
|
*
|
|
* Returns true if the connection started; false otherwise.
|
|
*
|
|
******************************************************************************/
|
|
bool GATT_CancelConnect(tGATT_IF gatt_if, const RawAddress& bd_addr,
|
|
bool is_direct) {
|
|
LOG(INFO) << __func__ << ": gatt_if=" << +gatt_if;
|
|
|
|
if (gatt_if && !gatt_get_regcb(gatt_if)) {
|
|
LOG(ERROR) << "gatt_if =" << +gatt_if << " is not registered";
|
|
return false;
|
|
}
|
|
|
|
if (is_direct) {
|
|
if (gatt_if) {
|
|
return gatt_cancel_open(gatt_if, bd_addr);
|
|
}
|
|
|
|
VLOG(1) << " unconditional";
|
|
/* only LE connection can be cancelled */
|
|
tGATT_TCB* p_tcb = gatt_find_tcb_by_addr(bd_addr, BT_TRANSPORT_LE);
|
|
if (!p_tcb || p_tcb->app_hold_link.empty()) {
|
|
LOG(ERROR) << __func__ << " no app found";
|
|
return false;
|
|
}
|
|
|
|
for (auto it = p_tcb->app_hold_link.begin();
|
|
it != p_tcb->app_hold_link.end();) {
|
|
auto next = std::next(it);
|
|
// gatt_cancel_open modifies the app_hold_link.
|
|
if (!gatt_cancel_open(*it, bd_addr)) return false;
|
|
|
|
it = next;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
// is not direct
|
|
|
|
if (gatt_if) return gatt_remove_bg_dev_for_app(gatt_if, bd_addr);
|
|
|
|
if (!gatt_clear_bg_dev_for_addr(bd_addr)) {
|
|
LOG(ERROR)
|
|
<< __func__
|
|
<< ": no app associated with the bg device for unconditional removal";
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function GATT_Disconnect
|
|
*
|
|
* Description This function disconnects the GATT channel for this
|
|
* registered application.
|
|
*
|
|
* Parameters conn_id: connection identifier.
|
|
*
|
|
* Returns GATT_SUCCESS if disconnected.
|
|
*
|
|
******************************************************************************/
|
|
tGATT_STATUS GATT_Disconnect(uint16_t conn_id) {
|
|
tGATT_STATUS ret = GATT_ILLEGAL_PARAMETER;
|
|
tGATT_TCB* p_tcb = NULL;
|
|
tGATT_IF gatt_if = GATT_GET_GATT_IF(conn_id);
|
|
uint8_t tcb_idx = GATT_GET_TCB_IDX(conn_id);
|
|
|
|
LOG(INFO) << __func__ << " conn_id=" << +conn_id;
|
|
|
|
p_tcb = gatt_get_tcb_by_idx(tcb_idx);
|
|
|
|
if (p_tcb) {
|
|
gatt_update_app_use_link_flag(gatt_if, p_tcb, false, true);
|
|
ret = GATT_SUCCESS;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function GATT_GetConnectionInfor
|
|
*
|
|
* Description This function uses conn_id to find its associated BD address
|
|
* and application interface
|
|
*
|
|
* Parameters conn_id: connection id (input)
|
|
* p_gatt_if: applicaiton interface (output)
|
|
* bd_addr: peer device address. (output)
|
|
*
|
|
* Returns true the ligical link information is found for conn_id
|
|
*
|
|
******************************************************************************/
|
|
bool GATT_GetConnectionInfor(uint16_t conn_id, tGATT_IF* p_gatt_if,
|
|
RawAddress& bd_addr, tBT_TRANSPORT* p_transport) {
|
|
tGATT_IF gatt_if = GATT_GET_GATT_IF(conn_id);
|
|
tGATT_REG* p_reg = gatt_get_regcb(gatt_if);
|
|
uint8_t tcb_idx = GATT_GET_TCB_IDX(conn_id);
|
|
tGATT_TCB* p_tcb = gatt_get_tcb_by_idx(tcb_idx);
|
|
bool status = false;
|
|
|
|
VLOG(1) << __func__ << " conn_id=" << +conn_id;
|
|
|
|
if (p_tcb && p_reg) {
|
|
bd_addr = p_tcb->peer_bda;
|
|
*p_gatt_if = gatt_if;
|
|
*p_transport = p_tcb->transport;
|
|
status = true;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function GATT_GetConnIdIfConnected
|
|
*
|
|
* Description This function find the conn_id if the logical link for BD
|
|
* address and applciation interface is connected
|
|
*
|
|
* Parameters gatt_if: applicaiton interface (input)
|
|
* bd_addr: peer device address. (input)
|
|
* p_conn_id: connection id (output)
|
|
* transport: transport option
|
|
*
|
|
* Returns true the logical link is connected
|
|
*
|
|
******************************************************************************/
|
|
bool GATT_GetConnIdIfConnected(tGATT_IF gatt_if, const RawAddress& bd_addr,
|
|
uint16_t* p_conn_id, tBT_TRANSPORT transport) {
|
|
tGATT_REG* p_reg = gatt_get_regcb(gatt_if);
|
|
tGATT_TCB* p_tcb = gatt_find_tcb_by_addr(bd_addr, transport);
|
|
bool status = false;
|
|
|
|
if (p_reg && p_tcb && (gatt_get_ch_state(p_tcb) == GATT_CH_OPEN)) {
|
|
*p_conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, gatt_if);
|
|
status = true;
|
|
}
|
|
|
|
VLOG(1) << __func__ << " status= " << +status;
|
|
return status;
|
|
}
|