blob: 22c9b575f72e4a0c10da339bd0772dbcf313495b [file] [log] [blame]
/******************************************************************************
*
* Copyright 2003-2012 Broadcom Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
/******************************************************************************
*
* This file contains the GATT client utility function.
*
******************************************************************************/
#define LOG_TAG "bt_bta_gattc"
#include <base/logging.h>
#include <bluetooth/log.h>
#include <cstdint>
#include "bta/gatt/bta_gattc_int.h"
#include "common/init_flags.h"
#include "device/include/controller.h"
#include "internal_include/bt_target.h"
#include "os/log.h"
#include "osi/include/allocator.h"
#include "types/bt_transport.h"
#include "types/hci_role.h"
#include "types/raw_address.h"
using namespace bluetooth;
static uint8_t ble_acceptlist_size() {
const controller_t* controller = controller_get_interface();
if (!controller->SupportsBle()) {
return 0;
}
return controller->get_ble_acceptlist_size();
}
/*******************************************************************************
*
* Function bta_gattc_cl_get_regcb
*
* Description get registration control block by client interface.
*
* Returns pointer to the regcb
*
******************************************************************************/
tBTA_GATTC_RCB* bta_gattc_cl_get_regcb(uint8_t client_if) {
uint8_t i = 0;
tBTA_GATTC_RCB* p_clrcb = &bta_gattc_cb.cl_rcb[0];
for (i = 0; i < BTA_GATTC_CL_MAX; i++, p_clrcb++) {
if (p_clrcb->in_use && p_clrcb->client_if == client_if) return p_clrcb;
}
return NULL;
}
/*******************************************************************************
*
* Function bta_gattc_num_reg_app
*
* Description find the number of registered application.
*
* Returns pointer to the regcb
*
******************************************************************************/
uint8_t bta_gattc_num_reg_app(void) {
uint8_t i = 0, j = 0;
for (i = 0; i < BTA_GATTC_CL_MAX; i++) {
if (bta_gattc_cb.cl_rcb[i].in_use) j++;
}
return j;
}
/*******************************************************************************
*
* Function bta_gattc_find_clcb_by_cif
*
* Description get clcb by client interface and remote bd adddress
*
* Returns pointer to the clcb
*
******************************************************************************/
tBTA_GATTC_CLCB* bta_gattc_find_clcb_by_cif(uint8_t client_if,
const RawAddress& remote_bda,
tBT_TRANSPORT transport) {
tBTA_GATTC_CLCB* p_clcb = &bta_gattc_cb.clcb[0];
uint8_t i;
for (i = 0; i < BTA_GATTC_CLCB_MAX; i++, p_clcb++) {
if (p_clcb->in_use && p_clcb->p_rcb->client_if == client_if &&
p_clcb->transport == transport && p_clcb->bda == remote_bda)
return p_clcb;
}
return NULL;
}
/*******************************************************************************
*
* Function bta_gattc_find_clcb_by_conn_id
*
* Description get clcb by connection ID
*
* Returns pointer to the clcb
*
******************************************************************************/
tBTA_GATTC_CLCB* bta_gattc_find_clcb_by_conn_id(uint16_t conn_id) {
tBTA_GATTC_CLCB* p_clcb = &bta_gattc_cb.clcb[0];
uint8_t i;
for (i = 0; i < BTA_GATTC_CLCB_MAX; i++, p_clcb++) {
if (p_clcb->in_use && p_clcb->bta_conn_id == conn_id) return p_clcb;
}
return NULL;
}
/*******************************************************************************
*
* Function bta_gattc_clcb_alloc
*
* Description allocate CLCB
*
* Returns pointer to the clcb
*
******************************************************************************/
tBTA_GATTC_CLCB* bta_gattc_clcb_alloc(tGATT_IF client_if,
const RawAddress& remote_bda,
tBT_TRANSPORT transport) {
uint8_t i_clcb = 0;
tBTA_GATTC_CLCB* p_clcb = NULL;
for (i_clcb = 0; i_clcb < BTA_GATTC_CLCB_MAX; i_clcb++) {
if (!bta_gattc_cb.clcb[i_clcb].in_use) {
#if (BTA_GATT_DEBUG == TRUE)
log::verbose("found clcb:{} available", i_clcb);
#endif
p_clcb = &bta_gattc_cb.clcb[i_clcb];
p_clcb->in_use = true;
p_clcb->status = GATT_SUCCESS;
p_clcb->transport = transport;
p_clcb->bda = remote_bda;
p_clcb->p_q_cmd = NULL;
p_clcb->p_rcb = bta_gattc_cl_get_regcb(client_if);
p_clcb->p_srcb = bta_gattc_find_srcb(remote_bda);
if (p_clcb->p_srcb == NULL)
p_clcb->p_srcb = bta_gattc_srcb_alloc(remote_bda);
if (p_clcb->p_rcb != NULL && p_clcb->p_srcb != NULL) {
p_clcb->p_srcb->num_clcb++;
p_clcb->p_rcb->num_clcb++;
} else {
/* release this clcb if clcb or srcb allocation failed */
p_clcb->in_use = false;
p_clcb = NULL;
}
break;
}
}
return p_clcb;
}
/*******************************************************************************
*
* Function bta_gattc_find_alloc_clcb
*
* Description find or allocate CLCB if not found.
*
* Returns pointer to the clcb
*
******************************************************************************/
tBTA_GATTC_CLCB* bta_gattc_find_alloc_clcb(tGATT_IF client_if,
const RawAddress& remote_bda,
tBT_TRANSPORT transport) {
tBTA_GATTC_CLCB* p_clcb;
p_clcb = bta_gattc_find_clcb_by_cif(client_if, remote_bda, transport);
if (p_clcb == NULL) {
p_clcb = bta_gattc_clcb_alloc(client_if, remote_bda, transport);
}
return p_clcb;
}
/*******************************************************************************
*
* Function bta_gattc_server_disconnected
*
* Description Set server cache disconnected
*
* Returns pointer to the srcb
*
******************************************************************************/
void bta_gattc_server_disconnected(tBTA_GATTC_SERV* p_srcb) {
if (p_srcb && p_srcb->connected) {
p_srcb->connected = false;
p_srcb->state = BTA_GATTC_SERV_IDLE;
p_srcb->mtu = 0;
// clear reallocating
p_srcb->gatt_database.Clear();
}
}
/*******************************************************************************
*
* Function bta_gattc_clcb_dealloc
*
* Description Deallocte a clcb
*
* Returns pointer to the clcb
*
******************************************************************************/
void bta_gattc_clcb_dealloc(tBTA_GATTC_CLCB* p_clcb) {
if (!p_clcb) {
log::error("p_clcb=NULL");
return;
}
tBTA_GATTC_SERV* p_srcb = p_clcb->p_srcb;
if (p_srcb->num_clcb) p_srcb->num_clcb--;
if (p_clcb->p_rcb->num_clcb) p_clcb->p_rcb->num_clcb--;
/* if the srcb is no longer needed, reset the state */
if (p_srcb->num_clcb == 0) {
p_srcb->connected = false;
p_srcb->state = BTA_GATTC_SERV_IDLE;
p_srcb->mtu = 0;
// clear reallocating
p_srcb->gatt_database.Clear();
}
while (!p_clcb->p_q_cmd_queue.empty()) {
auto p_q_cmd = p_clcb->p_q_cmd_queue.front();
p_clcb->p_q_cmd_queue.pop_front();
osi_free_and_reset((void**)&p_q_cmd);
}
if (p_clcb->p_q_cmd != NULL) {
osi_free_and_reset((void**)&p_clcb->p_q_cmd);
}
/* Clear p_clcb. Some of the fields are already reset e.g. p_q_cmd_queue and
* p_q_cmd. */
p_clcb->bta_conn_id = 0;
p_clcb->bda = {};
p_clcb->transport = 0;
p_clcb->p_rcb = NULL;
p_clcb->p_srcb = NULL;
p_clcb->request_during_discovery = 0;
p_clcb->auto_update = 0;
p_clcb->disc_active = 0;
p_clcb->in_use = 0;
p_clcb->state = BTA_GATTC_IDLE_ST;
p_clcb->status = GATT_SUCCESS;
}
/*******************************************************************************
*
* Function bta_gattc_find_srcb
*
* Description find server cache by remote bd address currently in use
*
* Returns pointer to the server cache.
*
******************************************************************************/
tBTA_GATTC_SERV* bta_gattc_find_srcb(const RawAddress& bda) {
tBTA_GATTC_SERV* p_srcb = &bta_gattc_cb.known_server[0];
uint8_t i;
for (i = 0; i < ble_acceptlist_size(); i++, p_srcb++) {
if (p_srcb->in_use && p_srcb->server_bda == bda) return p_srcb;
}
return NULL;
}
/*******************************************************************************
*
* Function bta_gattc_find_srvr_cache
*
* Description find server cache by remote bd address
*
* Returns pointer to the server cache.
*
******************************************************************************/
tBTA_GATTC_SERV* bta_gattc_find_srvr_cache(const RawAddress& bda) {
tBTA_GATTC_SERV* p_srcb = &bta_gattc_cb.known_server[0];
uint8_t i;
for (i = 0; i < ble_acceptlist_size(); i++, p_srcb++) {
if (p_srcb->server_bda == bda) return p_srcb;
}
return NULL;
}
/*******************************************************************************
*
* Function bta_gattc_find_scb_by_cid
*
* Description find server control block by connection ID
*
* Returns pointer to the server cache.
*
******************************************************************************/
tBTA_GATTC_SERV* bta_gattc_find_scb_by_cid(uint16_t conn_id) {
tBTA_GATTC_CLCB* p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
if (p_clcb)
return p_clcb->p_srcb;
else
return NULL;
}
/*******************************************************************************
*
* Function bta_gattc_srcb_alloc
*
* Description allocate server cache control block
*
* Returns pointer to the server cache.
*
******************************************************************************/
tBTA_GATTC_SERV* bta_gattc_srcb_alloc(const RawAddress& bda) {
tBTA_GATTC_SERV *p_tcb = &bta_gattc_cb.known_server[0], *p_recycle = NULL;
bool found = false;
uint8_t i;
for (i = 0; i < ble_acceptlist_size(); i++, p_tcb++) {
if (!p_tcb->in_use) {
found = true;
break;
} else if (!p_tcb->connected) {
p_recycle = p_tcb;
}
}
/* if not found, try to recycle one known device */
if (!found && !p_recycle)
p_tcb = NULL;
else if (!found && p_recycle)
p_tcb = p_recycle;
if (p_tcb != NULL) {
// clear reallocating
p_tcb->gatt_database.Clear();
p_tcb->pending_discovery.Clear();
*p_tcb = tBTA_GATTC_SERV();
p_tcb->in_use = true;
p_tcb->server_bda = bda;
}
return p_tcb;
}
void bta_gattc_send_mtu_response(tBTA_GATTC_CLCB* p_clcb,
const tBTA_GATTC_DATA* p_data,
uint16_t current_mtu) {
GATT_CONFIGURE_MTU_OP_CB cb = p_data->api_mtu.mtu_cb;
if (cb) {
void* my_cb_data = p_data->api_mtu.mtu_cb_data;
cb(p_clcb->bta_conn_id, GATT_SUCCESS, my_cb_data);
}
tBTA_GATTC cb_data;
p_clcb->status = GATT_SUCCESS;
cb_data.cfg_mtu.conn_id = p_clcb->bta_conn_id;
cb_data.cfg_mtu.status = GATT_SUCCESS;
cb_data.cfg_mtu.mtu = current_mtu;
if (p_clcb->p_rcb) {
(*p_clcb->p_rcb->p_cback)(BTA_GATTC_CFG_MTU_EVT, &cb_data);
}
}
void bta_gattc_continue(tBTA_GATTC_CLCB* p_clcb) {
if (p_clcb->p_q_cmd != NULL) {
log::info("Already scheduled another request for conn_id = 0x{:04x}",
p_clcb->bta_conn_id);
return;
}
while (!p_clcb->p_q_cmd_queue.empty()) {
const tBTA_GATTC_DATA* p_q_cmd = p_clcb->p_q_cmd_queue.front();
if (p_q_cmd->hdr.event != BTA_GATTC_API_CFG_MTU_EVT) {
p_clcb->p_q_cmd_queue.pop_front();
bta_gattc_sm_execute(p_clcb, p_q_cmd->hdr.event, p_q_cmd);
return;
}
/* The p_q_cmd is the MTU Request event. */
uint16_t current_mtu = 0;
auto result = GATTC_TryMtuRequest(p_clcb->bda, p_clcb->transport,
p_clcb->bta_conn_id, &current_mtu);
switch (result) {
case MTU_EXCHANGE_DEVICE_DISCONNECTED:
bta_gattc_cmpl_sendmsg(p_clcb->bta_conn_id, GATTC_OPTYPE_CONFIG,
GATT_NO_RESOURCES, NULL);
/* Handled, free command below and continue with a p_q_cmd_queue */
break;
case MTU_EXCHANGE_NOT_ALLOWED:
bta_gattc_cmpl_sendmsg(p_clcb->bta_conn_id, GATTC_OPTYPE_CONFIG,
GATT_ERR_UNLIKELY, NULL);
/* Handled, free command below and continue with a p_q_cmd_queue */
break;
case MTU_EXCHANGE_ALREADY_DONE:
bta_gattc_send_mtu_response(p_clcb, p_q_cmd, current_mtu);
/* Handled, free command below and continue with a p_q_cmd_queue */
break;
case MTU_EXCHANGE_IN_PROGRESS:
log::warn("Waiting p_clcb {}", fmt::ptr(p_clcb));
return;
case MTU_EXCHANGE_NOT_DONE_YET:
p_clcb->p_q_cmd_queue.pop_front();
bta_gattc_sm_execute(p_clcb, p_q_cmd->hdr.event, p_q_cmd);
return;
}
/* p_q_cmd was the MTU request and it was handled.
* If MTU request was handled without actually ATT request,
* it is ok to take another message from the queue and proceed.
*/
p_clcb->p_q_cmd_queue.pop_front();
osi_free_and_reset((void**)&p_q_cmd);
}
}
bool bta_gattc_is_data_queued(tBTA_GATTC_CLCB* p_clcb,
const tBTA_GATTC_DATA* p_data) {
if (p_clcb->p_q_cmd == p_data) {
return true;
}
auto it = std::find(p_clcb->p_q_cmd_queue.begin(),
p_clcb->p_q_cmd_queue.end(), p_data);
return it != p_clcb->p_q_cmd_queue.end();
}
/*******************************************************************************
*
* Function bta_gattc_enqueue
*
* Description enqueue a client request in clcb.
*
* Returns BtaEnqueuedResult_t
*
******************************************************************************/
BtaEnqueuedResult_t bta_gattc_enqueue(tBTA_GATTC_CLCB* p_clcb,
const tBTA_GATTC_DATA* p_data) {
if (p_clcb->p_q_cmd == NULL) {
p_clcb->p_q_cmd = p_data;
return ENQUEUED_READY_TO_SEND;
}
log::info(
"Already has a pending command to executer. Queuing for later {} conn "
"id=0x{:04x}",
ADDRESS_TO_LOGGABLE_CSTR(p_clcb->bda), p_clcb->bta_conn_id);
p_clcb->p_q_cmd_queue.push_back(p_data);
return ENQUEUED_FOR_LATER;
}
/*******************************************************************************
*
* Function bta_gattc_check_notif_registry
*
* Description check if the service notificaition has been registered.
*
* Returns
*
******************************************************************************/
bool bta_gattc_check_notif_registry(tBTA_GATTC_RCB* p_clreg,
tBTA_GATTC_SERV* p_srcb,
tBTA_GATTC_NOTIFY* p_notify) {
uint8_t i;
for (i = 0; i < BTA_GATTC_NOTIF_REG_MAX; i++) {
if (p_clreg->notif_reg[i].in_use &&
p_clreg->notif_reg[i].remote_bda == p_srcb->server_bda &&
p_clreg->notif_reg[i].handle == p_notify->handle &&
!p_clreg->notif_reg[i].app_disconnected) {
log::verbose("Notification registered!");
return true;
}
}
return false;
}
/*******************************************************************************
*
* Function bta_gattc_clear_notif_registration
*
* Description Clear up the notification registration information by
* RawAddress.
* Where handle is between start_handle and end_handle, and
* start_handle and end_handle are boundaries of service
* containing characteristic.
*
* Returns None.
*
******************************************************************************/
void bta_gattc_clear_notif_registration(tBTA_GATTC_SERV* p_srcb,
uint16_t conn_id, uint16_t start_handle,
uint16_t end_handle) {
RawAddress remote_bda;
tGATT_IF gatt_if;
tBTA_GATTC_RCB* p_clrcb;
uint8_t i;
tBT_TRANSPORT transport;
uint16_t handle;
if (GATT_GetConnectionInfor(conn_id, &gatt_if, remote_bda, &transport)) {
p_clrcb = bta_gattc_cl_get_regcb(gatt_if);
if (p_clrcb != NULL) {
for (i = 0; i < BTA_GATTC_NOTIF_REG_MAX; i++) {
if (p_clrcb->notif_reg[i].in_use &&
p_clrcb->notif_reg[i].remote_bda == remote_bda) {
/* It's enough to get service or characteristic handle, as
* clear boundaries are always around service.
*/
handle = p_clrcb->notif_reg[i].handle;
if (handle >= start_handle && handle <= end_handle)
memset(&p_clrcb->notif_reg[i], 0, sizeof(tBTA_GATTC_NOTIF_REG));
}
}
}
} else {
log::error("can not clear indication/notif registration for unknown app");
}
return;
}
/*******************************************************************************
*
* Function bta_gattc_mark_bg_conn
*
* Description mark background connection status when a bg connection is
* initiated or terminated.
*
* Returns true if success; false otherwise.
*
******************************************************************************/
bool bta_gattc_mark_bg_conn(tGATT_IF client_if,
const RawAddress& remote_bda_ptr, bool add) {
tBTA_GATTC_BG_TCK* p_bg_tck = &bta_gattc_cb.bg_track[0];
uint8_t i = 0;
tBTA_GATTC_CIF_MASK* p_cif_mask;
for (i = 0; i < ble_acceptlist_size(); i++, p_bg_tck++) {
if (p_bg_tck->in_use && ((p_bg_tck->remote_bda == remote_bda_ptr) ||
(p_bg_tck->remote_bda.IsEmpty()))) {
p_cif_mask = &p_bg_tck->cif_mask;
if (add) /* mask on the cif bit */
*p_cif_mask |= (1 << (client_if - 1));
else {
if (client_if != 0)
*p_cif_mask &= (~(1 << (client_if - 1)));
else
*p_cif_mask = 0;
}
/* no BG connection for this device, make it available */
if (p_bg_tck->cif_mask == 0) {
memset(p_bg_tck, 0, sizeof(tBTA_GATTC_BG_TCK));
}
return true;
}
}
if (!add) {
log::error("unable to find the bg connection mask for bd_addr={}",
ADDRESS_TO_LOGGABLE_STR(remote_bda_ptr));
return false;
} else /* adding a new device mask */
{
for (i = 0, p_bg_tck = &bta_gattc_cb.bg_track[0]; i < ble_acceptlist_size();
i++, p_bg_tck++) {
if (!p_bg_tck->in_use) {
p_bg_tck->in_use = true;
p_bg_tck->remote_bda = remote_bda_ptr;
p_cif_mask = &p_bg_tck->cif_mask;
*p_cif_mask = ((tBTA_GATTC_CIF_MASK)1 << (client_if - 1));
return true;
}
}
log::error("no available space to mark the bg connection status");
return false;
}
}
/*******************************************************************************
*
* Function bta_gattc_check_bg_conn
*
* Description check if this is a background connection background
* connection.
*
* Returns true if success; false otherwise.
*
******************************************************************************/
bool bta_gattc_check_bg_conn(tGATT_IF client_if, const RawAddress& remote_bda,
uint8_t role) {
tBTA_GATTC_BG_TCK* p_bg_tck = &bta_gattc_cb.bg_track[0];
uint8_t i = 0;
bool is_bg_conn = false;
for (i = 0; i < ble_acceptlist_size() && !is_bg_conn; i++, p_bg_tck++) {
if (p_bg_tck->in_use && (p_bg_tck->remote_bda == remote_bda ||
p_bg_tck->remote_bda.IsEmpty())) {
if (((p_bg_tck->cif_mask & ((tBTA_GATTC_CIF_MASK)1 << (client_if - 1))) != 0) &&
role == HCI_ROLE_CENTRAL)
is_bg_conn = true;
}
}
return is_bg_conn;
}
/*******************************************************************************
*
* Function bta_gattc_send_open_cback
*
* Description send open callback
*
* Returns
*
******************************************************************************/
void bta_gattc_send_open_cback(tBTA_GATTC_RCB* p_clreg, tGATT_STATUS status,
const RawAddress& remote_bda, uint16_t conn_id,
tBT_TRANSPORT transport, uint16_t mtu) {
tBTA_GATTC cb_data;
if (p_clreg->p_cback) {
memset(&cb_data, 0, sizeof(tBTA_GATTC));
cb_data.open.status = status;
cb_data.open.client_if = p_clreg->client_if;
cb_data.open.conn_id = conn_id;
cb_data.open.mtu = mtu;
cb_data.open.transport = transport;
cb_data.open.remote_bda = remote_bda;
(*p_clreg->p_cback)(BTA_GATTC_OPEN_EVT, &cb_data);
}
}
/*******************************************************************************
*
* Function bta_gattc_conn_alloc
*
* Description allocate connection tracking spot
*
* Returns pointer to the clcb
*
******************************************************************************/
tBTA_GATTC_CONN* bta_gattc_conn_alloc(const RawAddress& remote_bda) {
uint8_t i_conn = 0;
tBTA_GATTC_CONN* p_conn = &bta_gattc_cb.conn_track[0];
for (i_conn = 0; i_conn < GATT_MAX_PHY_CHANNEL; i_conn++, p_conn++) {
if (!p_conn->in_use) {
#if (BTA_GATT_DEBUG == TRUE)
log::verbose("found conn_track:{} available", i_conn);
#endif
p_conn->in_use = true;
p_conn->remote_bda = remote_bda;
return p_conn;
}
}
return NULL;
}
/*******************************************************************************
*
* Function bta_gattc_conn_find
*
* Description allocate connection tracking spot
*
* Returns pointer to the clcb
*
******************************************************************************/
tBTA_GATTC_CONN* bta_gattc_conn_find(const RawAddress& remote_bda) {
uint8_t i_conn = 0;
tBTA_GATTC_CONN* p_conn = &bta_gattc_cb.conn_track[0];
for (i_conn = 0; i_conn < GATT_MAX_PHY_CHANNEL; i_conn++, p_conn++) {
if (p_conn->in_use && remote_bda == p_conn->remote_bda) {
#if (BTA_GATT_DEBUG == TRUE)
log::verbose("found conn_track:{} matched", i_conn);
#endif
return p_conn;
}
}
return NULL;
}
/*******************************************************************************
*
* Function bta_gattc_conn_find_alloc
*
* Description find or allocate connection tracking spot
*
* Returns pointer to the clcb
*
******************************************************************************/
tBTA_GATTC_CONN* bta_gattc_conn_find_alloc(const RawAddress& remote_bda) {
tBTA_GATTC_CONN* p_conn = bta_gattc_conn_find(remote_bda);
if (p_conn == NULL) {
p_conn = bta_gattc_conn_alloc(remote_bda);
}
return p_conn;
}
/*******************************************************************************
*
* Function bta_gattc_conn_dealloc
*
* Description de-allocate connection tracking spot
*
* Returns pointer to the clcb
*
******************************************************************************/
bool bta_gattc_conn_dealloc(const RawAddress& remote_bda) {
tBTA_GATTC_CONN* p_conn = bta_gattc_conn_find(remote_bda);
if (p_conn != NULL) {
p_conn->in_use = false;
p_conn->remote_bda = RawAddress::kEmpty;
return true;
}
return false;
}
/*******************************************************************************
*
* Function bta_gattc_find_int_conn_clcb
*
* Description try to locate a clcb when an internal connecion event
* arrives.
*
* Returns pointer to the clcb
*
******************************************************************************/
tBTA_GATTC_CLCB* bta_gattc_find_int_conn_clcb(tBTA_GATTC_DATA* p_msg) {
tBTA_GATTC_CLCB* p_clcb = NULL;
if (p_msg->int_conn.role == HCI_ROLE_PERIPHERAL)
bta_gattc_conn_find_alloc(p_msg->int_conn.remote_bda);
/* try to locate a logic channel */
p_clcb = bta_gattc_find_clcb_by_cif(p_msg->int_conn.client_if,
p_msg->int_conn.remote_bda,
p_msg->int_conn.transport);
if (p_clcb == NULL) {
/* for a background connection or listening connection */
if (/*p_msg->int_conn.role == HCI_ROLE_PERIPHERAL || */
bta_gattc_check_bg_conn(p_msg->int_conn.client_if,
p_msg->int_conn.remote_bda,
p_msg->int_conn.role)) {
/* allocate a new channel */
p_clcb = bta_gattc_clcb_alloc(p_msg->int_conn.client_if,
p_msg->int_conn.remote_bda,
p_msg->int_conn.transport);
}
}
return p_clcb;
}
/*******************************************************************************
*
* Function bta_gattc_find_int_disconn_clcb
*
* Description try to locate a clcb when an internal disconnect callback
* arrives.
*
* Returns pointer to the clcb
*
******************************************************************************/
tBTA_GATTC_CLCB* bta_gattc_find_int_disconn_clcb(tBTA_GATTC_DATA* p_msg) {
tBTA_GATTC_CLCB* p_clcb = NULL;
bta_gattc_conn_dealloc(p_msg->int_conn.remote_bda);
p_clcb = bta_gattc_find_clcb_by_conn_id(p_msg->int_conn.hdr.layer_specific);
if (p_clcb == NULL) {
/* connection attempt failed, send connection callback event */
p_clcb = bta_gattc_find_clcb_by_cif(p_msg->int_conn.client_if,
p_msg->int_conn.remote_bda,
p_msg->int_conn.transport);
}
if (p_clcb == NULL) {
log::verbose("disconnection ID:{} not used by BTA",
p_msg->int_conn.hdr.layer_specific);
}
return p_clcb;
}
/*******************************************************************************
*
* Function bta_gattc_is_robust_caching_enabled
*
* Description check if robust caching is enabled
*
* Returns true if enabled; otherwise false
*
******************************************************************************/
bool bta_gattc_is_robust_caching_enabled() {
return bluetooth::common::init_flags::gatt_robust_caching_client_is_enabled();
}