1174 lines
39 KiB
C++
1174 lines
39 KiB
C++
/******************************************************************************
|
|
*
|
|
* Copyright (C) 2008-2012 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 main ATT functions
|
|
*
|
|
******************************************************************************/
|
|
|
|
#include "bt_target.h"
|
|
|
|
#include "bt_common.h"
|
|
#include "bt_utils.h"
|
|
#include "btif_storage.h"
|
|
#include "btm_ble_int.h"
|
|
#include "btm_int.h"
|
|
#include "device/include/interop.h"
|
|
#include "gatt_int.h"
|
|
#include "l2c_api.h"
|
|
#include "osi/include/osi.h"
|
|
|
|
using base::StringPrintf;
|
|
|
|
/* Configuration flags. */
|
|
#define GATT_L2C_CFG_IND_DONE (1 << 0)
|
|
#define GATT_L2C_CFG_CFM_DONE (1 << 1)
|
|
|
|
/* minimum GATT MTU size over BR/EDR link
|
|
*/
|
|
#define GATT_MIN_BR_MTU_SIZE 48
|
|
|
|
/******************************************************************************/
|
|
/* L O C A L F U N C T I O N P R O T O T Y P E S */
|
|
/******************************************************************************/
|
|
static void gatt_le_connect_cback(uint16_t chan, const RawAddress& bd_addr,
|
|
bool connected, uint16_t reason,
|
|
tBT_TRANSPORT transport);
|
|
static void gatt_le_data_ind(uint16_t chan, const RawAddress& bd_addr,
|
|
BT_HDR* p_buf);
|
|
static void gatt_le_cong_cback(const RawAddress& remote_bda, bool congest);
|
|
|
|
static void gatt_l2cif_connect_ind_cback(const RawAddress& bd_addr,
|
|
uint16_t l2cap_cid, uint16_t psm,
|
|
uint8_t l2cap_id);
|
|
static void gatt_l2cif_connect_cfm_cback(uint16_t l2cap_cid, uint16_t result);
|
|
static void gatt_l2cif_config_ind_cback(uint16_t l2cap_cid,
|
|
tL2CAP_CFG_INFO* p_cfg);
|
|
static void gatt_l2cif_config_cfm_cback(uint16_t l2cap_cid,
|
|
tL2CAP_CFG_INFO* p_cfg);
|
|
static void gatt_l2cif_disconnect_ind_cback(uint16_t l2cap_cid,
|
|
bool ack_needed);
|
|
static void gatt_l2cif_disconnect_cfm_cback(uint16_t l2cap_cid,
|
|
uint16_t result);
|
|
static void gatt_l2cif_data_ind_cback(uint16_t l2cap_cid, BT_HDR* p_msg);
|
|
static void gatt_send_conn_cback(tGATT_TCB* p_tcb);
|
|
static void gatt_l2cif_congest_cback(uint16_t cid, bool congested);
|
|
|
|
static const tL2CAP_APPL_INFO dyn_info = {gatt_l2cif_connect_ind_cback,
|
|
gatt_l2cif_connect_cfm_cback,
|
|
NULL,
|
|
gatt_l2cif_config_ind_cback,
|
|
gatt_l2cif_config_cfm_cback,
|
|
gatt_l2cif_disconnect_ind_cback,
|
|
gatt_l2cif_disconnect_cfm_cback,
|
|
NULL,
|
|
gatt_l2cif_data_ind_cback,
|
|
gatt_l2cif_congest_cback,
|
|
NULL};
|
|
|
|
tGATT_CB gatt_cb;
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_init
|
|
*
|
|
* Description This function is enable the GATT profile on the device.
|
|
* It clears out the control blocks, and registers with L2CAP.
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
void gatt_init(void) {
|
|
tL2CAP_FIXED_CHNL_REG fixed_reg;
|
|
|
|
VLOG(1) << __func__;
|
|
|
|
gatt_cb = tGATT_CB();
|
|
memset(&fixed_reg, 0, sizeof(tL2CAP_FIXED_CHNL_REG));
|
|
|
|
gatt_cb.def_mtu_size = GATT_DEF_BLE_MTU_SIZE;
|
|
gatt_cb.sign_op_queue = fixed_queue_new(SIZE_MAX);
|
|
gatt_cb.srv_chg_clt_q = fixed_queue_new(SIZE_MAX);
|
|
/* First, register fixed L2CAP channel for ATT over BLE */
|
|
fixed_reg.fixed_chnl_opts.mode = L2CAP_FCR_BASIC_MODE;
|
|
fixed_reg.fixed_chnl_opts.max_transmit = 0xFF;
|
|
fixed_reg.fixed_chnl_opts.rtrans_tout = 2000;
|
|
fixed_reg.fixed_chnl_opts.mon_tout = 12000;
|
|
fixed_reg.fixed_chnl_opts.mps = 670;
|
|
fixed_reg.fixed_chnl_opts.tx_win_sz = 1;
|
|
|
|
fixed_reg.pL2CA_FixedConn_Cb = gatt_le_connect_cback;
|
|
fixed_reg.pL2CA_FixedData_Cb = gatt_le_data_ind;
|
|
fixed_reg.pL2CA_FixedCong_Cb = gatt_le_cong_cback; /* congestion callback */
|
|
fixed_reg.default_idle_tout = 0xffff; /* 0xffff default idle timeout */
|
|
|
|
L2CA_RegisterFixedChannel(L2CAP_ATT_CID, &fixed_reg);
|
|
|
|
/* Now, register with L2CAP for ATT PSM over BR/EDR */
|
|
if (!L2CA_Register(BT_PSM_ATT, (tL2CAP_APPL_INFO*)&dyn_info)) {
|
|
LOG(ERROR) << "ATT Dynamic Registration failed";
|
|
}
|
|
|
|
BTM_SetSecurityLevel(true, "", BTM_SEC_SERVICE_ATT, BTM_SEC_NONE, BT_PSM_ATT,
|
|
0, 0);
|
|
BTM_SetSecurityLevel(false, "", BTM_SEC_SERVICE_ATT, BTM_SEC_NONE, BT_PSM_ATT,
|
|
0, 0);
|
|
|
|
gatt_cb.hdl_cfg.gatt_start_hdl = GATT_GATT_START_HANDLE;
|
|
gatt_cb.hdl_cfg.gap_start_hdl = GATT_GAP_START_HANDLE;
|
|
gatt_cb.hdl_cfg.app_start_hdl = GATT_APP_START_HANDLE;
|
|
|
|
gatt_cb.hdl_list_info = new std::list<tGATT_HDL_LIST_ELEM>();
|
|
gatt_cb.srv_list_info = new std::list<tGATT_SRV_LIST_ELEM>();
|
|
gatt_profile_db_init();
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_free
|
|
*
|
|
* Description This function frees resources used by the GATT profile.
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
void gatt_free(void) {
|
|
int i;
|
|
VLOG(1) << __func__;
|
|
|
|
fixed_queue_free(gatt_cb.sign_op_queue, NULL);
|
|
gatt_cb.sign_op_queue = NULL;
|
|
fixed_queue_free(gatt_cb.srv_chg_clt_q, NULL);
|
|
gatt_cb.srv_chg_clt_q = NULL;
|
|
for (i = 0; i < GATT_MAX_PHY_CHANNEL; i++) {
|
|
gatt_cb.tcb[i].pending_enc_clcb = std::queue<tGATT_CLCB*>();
|
|
|
|
fixed_queue_free(gatt_cb.tcb[i].pending_ind_q, NULL);
|
|
gatt_cb.tcb[i].pending_ind_q = NULL;
|
|
|
|
alarm_free(gatt_cb.tcb[i].conf_timer);
|
|
gatt_cb.tcb[i].conf_timer = NULL;
|
|
|
|
alarm_free(gatt_cb.tcb[i].ind_ack_timer);
|
|
gatt_cb.tcb[i].ind_ack_timer = NULL;
|
|
|
|
fixed_queue_free(gatt_cb.tcb[i].sr_cmd.multi_rsp_q, NULL);
|
|
gatt_cb.tcb[i].sr_cmd.multi_rsp_q = NULL;
|
|
}
|
|
|
|
gatt_cb.hdl_list_info->clear();
|
|
gatt_cb.hdl_list_info = nullptr;
|
|
gatt_cb.srv_list_info->clear();
|
|
gatt_cb.srv_list_info = nullptr;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_connect
|
|
*
|
|
* Description This function is called to initiate a connection to a peer
|
|
* device.
|
|
*
|
|
* Parameter rem_bda: remote device address to connect to.
|
|
*
|
|
* Returns true if connection is started, otherwise return false.
|
|
*
|
|
******************************************************************************/
|
|
bool gatt_connect(const RawAddress& rem_bda, tGATT_TCB* p_tcb,
|
|
tBT_TRANSPORT transport, uint8_t initiating_phys) {
|
|
bool gatt_ret = false;
|
|
|
|
if (gatt_get_ch_state(p_tcb) != GATT_CH_OPEN)
|
|
gatt_set_ch_state(p_tcb, GATT_CH_CONN);
|
|
|
|
if (transport == BT_TRANSPORT_LE) {
|
|
p_tcb->att_lcid = L2CAP_ATT_CID;
|
|
gatt_ret = L2CA_ConnectFixedChnl(L2CAP_ATT_CID, rem_bda, initiating_phys);
|
|
} else {
|
|
p_tcb->att_lcid = L2CA_ConnectReq(BT_PSM_ATT, rem_bda);
|
|
if (p_tcb->att_lcid != 0) gatt_ret = true;
|
|
}
|
|
|
|
return gatt_ret;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_disconnect
|
|
*
|
|
* Description This function is called to disconnect to an ATT device.
|
|
*
|
|
* Parameter p_tcb: pointer to the TCB to disconnect.
|
|
*
|
|
* Returns true: if connection found and to be disconnected; otherwise
|
|
* return false.
|
|
*
|
|
******************************************************************************/
|
|
bool gatt_disconnect(tGATT_TCB* p_tcb) {
|
|
bool ret = false;
|
|
tGATT_CH_STATE ch_state;
|
|
|
|
VLOG(1) << __func__;
|
|
|
|
if (p_tcb != NULL) {
|
|
ret = true;
|
|
ch_state = gatt_get_ch_state(p_tcb);
|
|
if (ch_state != GATT_CH_CLOSING) {
|
|
if (p_tcb->att_lcid == L2CAP_ATT_CID) {
|
|
if (ch_state == GATT_CH_OPEN) {
|
|
/* only LCB exist between remote device and local */
|
|
ret = L2CA_RemoveFixedChnl(L2CAP_ATT_CID, p_tcb->peer_bda);
|
|
} else {
|
|
ret = L2CA_CancelBleConnectReq(p_tcb->peer_bda);
|
|
if (!ret) gatt_set_ch_state(p_tcb, GATT_CH_CLOSE);
|
|
}
|
|
gatt_set_ch_state(p_tcb, GATT_CH_CLOSING);
|
|
} else {
|
|
if ((ch_state == GATT_CH_OPEN) || (ch_state == GATT_CH_CFG))
|
|
ret = L2CA_DisconnectReq(p_tcb->att_lcid);
|
|
else
|
|
VLOG(1) << __func__ << " gatt_disconnect channel not opened";
|
|
}
|
|
} else {
|
|
VLOG(1) << __func__ << " already in closing state";
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_update_app_hold_link_status
|
|
*
|
|
* Description Update the application use link status
|
|
*
|
|
* Returns true if any modifications are made or
|
|
* when it already exists, false otherwise.
|
|
*
|
|
******************************************************************************/
|
|
bool gatt_update_app_hold_link_status(tGATT_IF gatt_if, tGATT_TCB* p_tcb,
|
|
bool is_add) {
|
|
auto& holders = p_tcb->app_hold_link;
|
|
|
|
VLOG(1) << __func__;
|
|
if (is_add) {
|
|
auto ret = holders.insert(gatt_if);
|
|
if (ret.second) {
|
|
VLOG(1) << "added gatt_if=" << +gatt_if;
|
|
} else {
|
|
VLOG(1) << "attempt to add already existing gatt_if=" << +gatt_if;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
//! is_add
|
|
if (!holders.erase(gatt_if)) {
|
|
VLOG(1) << "attempt to remove nonexisting gatt_if=" << +gatt_if;
|
|
return false;
|
|
}
|
|
|
|
VLOG(1) << "removed gatt_if=" << +gatt_if;
|
|
return true;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_update_app_use_link_flag
|
|
*
|
|
* Description Update the application use link flag and optional to check
|
|
* the acl link if the link is up then set the idle time out
|
|
* accordingly
|
|
*
|
|
* Returns void.
|
|
*
|
|
******************************************************************************/
|
|
void gatt_update_app_use_link_flag(tGATT_IF gatt_if, tGATT_TCB* p_tcb,
|
|
bool is_add, bool check_acl_link) {
|
|
VLOG(1) << StringPrintf("%s: is_add=%d chk_link=%d", __func__, is_add,
|
|
check_acl_link);
|
|
|
|
if (!p_tcb) return;
|
|
|
|
// If we make no modification, i.e. kill app that was never connected to a
|
|
// device, skip updating the device state.
|
|
if (!gatt_update_app_hold_link_status(gatt_if, p_tcb, is_add)) return;
|
|
|
|
if (!check_acl_link ||
|
|
p_tcb->att_lcid !=
|
|
L2CAP_ATT_CID || /* only update link idle timer for fixed channel */
|
|
(BTM_GetHCIConnHandle(p_tcb->peer_bda, p_tcb->transport) ==
|
|
GATT_INVALID_ACL_HANDLE)) {
|
|
return;
|
|
}
|
|
|
|
if (is_add) {
|
|
VLOG(1) << "disable link idle timer";
|
|
/* acl link is connected disable the idle timeout */
|
|
GATT_SetIdleTimeout(p_tcb->peer_bda, GATT_LINK_NO_IDLE_TIMEOUT,
|
|
p_tcb->transport);
|
|
} else {
|
|
if (p_tcb->app_hold_link.empty()) {
|
|
/* acl link is connected but no application needs to use the link
|
|
so set the timeout value to GATT_LINK_IDLE_TIMEOUT_WHEN_NO_APP seconds
|
|
*/
|
|
VLOG(1) << " start link idle timer = "
|
|
<< GATT_LINK_IDLE_TIMEOUT_WHEN_NO_APP << " sec";
|
|
GATT_SetIdleTimeout(p_tcb->peer_bda, GATT_LINK_IDLE_TIMEOUT_WHEN_NO_APP,
|
|
p_tcb->transport);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_act_connect
|
|
*
|
|
* Description GATT connection initiation.
|
|
*
|
|
* Returns void.
|
|
*
|
|
******************************************************************************/
|
|
bool gatt_act_connect(tGATT_REG* p_reg, const RawAddress& bd_addr,
|
|
tBT_TRANSPORT transport, bool opportunistic,
|
|
int8_t initiating_phys) {
|
|
bool ret = false;
|
|
tGATT_TCB* p_tcb;
|
|
uint8_t st;
|
|
|
|
p_tcb = gatt_find_tcb_by_addr(bd_addr, transport);
|
|
if (p_tcb != NULL) {
|
|
ret = true;
|
|
st = gatt_get_ch_state(p_tcb);
|
|
|
|
/* before link down, another app try to open a GATT connection */
|
|
if (st == GATT_CH_OPEN && p_tcb->app_hold_link.empty() &&
|
|
transport == BT_TRANSPORT_LE) {
|
|
if (!gatt_connect(bd_addr, p_tcb, transport, initiating_phys))
|
|
ret = false;
|
|
} else if (st == GATT_CH_CLOSING) {
|
|
/* need to complete the closing first */
|
|
ret = false;
|
|
}
|
|
} else {
|
|
p_tcb = gatt_allocate_tcb_by_bdaddr(bd_addr, transport);
|
|
if (p_tcb != NULL) {
|
|
if (!gatt_connect(bd_addr, p_tcb, transport, initiating_phys)) {
|
|
LOG(ERROR) << "gatt_connect failed";
|
|
fixed_queue_free(p_tcb->pending_ind_q, NULL);
|
|
*p_tcb = tGATT_TCB();
|
|
} else
|
|
ret = true;
|
|
} else {
|
|
ret = 0;
|
|
LOG(ERROR) << "Max TCB for gatt_if [ " << +p_reg->gatt_if << "] reached.";
|
|
}
|
|
}
|
|
|
|
if (ret) {
|
|
if (!opportunistic)
|
|
gatt_update_app_use_link_flag(p_reg->gatt_if, p_tcb, true, false);
|
|
else
|
|
VLOG(1) << __func__
|
|
<< ": connection is opportunistic, not updating app usage";
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_le_connect_cback
|
|
*
|
|
* Description This callback function is called by L2CAP to indicate that
|
|
* the ATT fixed channel for LE is
|
|
* connected (conn = true)/disconnected (conn = false).
|
|
*
|
|
******************************************************************************/
|
|
static void gatt_le_connect_cback(uint16_t chan, const RawAddress& bd_addr,
|
|
bool connected, uint16_t reason,
|
|
tBT_TRANSPORT transport) {
|
|
tGATT_TCB* p_tcb = gatt_find_tcb_by_addr(bd_addr, transport);
|
|
bool check_srv_chg = false;
|
|
tGATTS_SRV_CHG* p_srv_chg_clt = NULL;
|
|
|
|
/* ignore all fixed channel connect/disconnect on BR/EDR link for GATT */
|
|
if (transport == BT_TRANSPORT_BR_EDR) return;
|
|
|
|
VLOG(1) << "GATT ATT protocol channel with BDA: " << bd_addr << " is "
|
|
<< ((connected) ? "connected" : "disconnected");
|
|
|
|
p_srv_chg_clt = gatt_is_bda_in_the_srv_chg_clt_list(bd_addr);
|
|
if (p_srv_chg_clt != NULL) {
|
|
check_srv_chg = true;
|
|
} else {
|
|
if (btm_sec_is_a_bonded_dev(bd_addr))
|
|
gatt_add_a_bonded_dev_for_srv_chg(bd_addr);
|
|
}
|
|
|
|
if (connected) {
|
|
/* do we have a channel initiating a connection? */
|
|
if (p_tcb) {
|
|
/* we are initiating connection */
|
|
if (gatt_get_ch_state(p_tcb) == GATT_CH_CONN) {
|
|
/* send callback */
|
|
gatt_set_ch_state(p_tcb, GATT_CH_OPEN);
|
|
p_tcb->payload_size = GATT_DEF_BLE_MTU_SIZE;
|
|
|
|
gatt_send_conn_cback(p_tcb);
|
|
}
|
|
if (check_srv_chg) gatt_chk_srv_chg(p_srv_chg_clt);
|
|
}
|
|
/* this is incoming connection or background connection callback */
|
|
|
|
else {
|
|
p_tcb = gatt_allocate_tcb_by_bdaddr(bd_addr, BT_TRANSPORT_LE);
|
|
if (p_tcb != NULL) {
|
|
p_tcb->att_lcid = L2CAP_ATT_CID;
|
|
|
|
gatt_set_ch_state(p_tcb, GATT_CH_OPEN);
|
|
|
|
p_tcb->payload_size = GATT_DEF_BLE_MTU_SIZE;
|
|
|
|
gatt_send_conn_cback(p_tcb);
|
|
if (check_srv_chg) {
|
|
gatt_chk_srv_chg(p_srv_chg_clt);
|
|
}
|
|
} else {
|
|
LOG(ERROR) << "CCB max out, no rsources";
|
|
}
|
|
}
|
|
} else {
|
|
gatt_cleanup_upon_disc(bd_addr, reason, transport);
|
|
VLOG(1) << "ATT disconnected";
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_channel_congestion
|
|
*
|
|
* Description This function is called to process the congestion callback
|
|
* from lcb
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
static void gatt_channel_congestion(tGATT_TCB* p_tcb, bool congested) {
|
|
uint8_t i = 0;
|
|
tGATT_REG* p_reg = NULL;
|
|
uint16_t conn_id;
|
|
|
|
/* if uncongested, check to see if there is any more pending data */
|
|
if (p_tcb != NULL && congested == false) {
|
|
gatt_cl_send_next_cmd_inq(*p_tcb);
|
|
}
|
|
/* notifying all applications for the connection up event */
|
|
for (i = 0, p_reg = gatt_cb.cl_rcb; i < GATT_MAX_APPS; i++, p_reg++) {
|
|
if (p_reg->in_use) {
|
|
if (p_reg->app_cb.p_congestion_cb) {
|
|
conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, p_reg->gatt_if);
|
|
(*p_reg->app_cb.p_congestion_cb)(conn_id, congested);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void gatt_notify_phy_updated(tGATT_TCB* p_tcb, uint8_t tx_phy, uint8_t rx_phy,
|
|
uint8_t status) {
|
|
for (int i = 0; i < GATT_MAX_APPS; i++) {
|
|
tGATT_REG* p_reg = &gatt_cb.cl_rcb[i];
|
|
if (p_reg->in_use && p_reg->app_cb.p_phy_update_cb) {
|
|
uint16_t conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, p_reg->gatt_if);
|
|
(*p_reg->app_cb.p_phy_update_cb)(p_reg->gatt_if, conn_id, tx_phy, rx_phy,
|
|
status);
|
|
}
|
|
}
|
|
}
|
|
|
|
void gatt_notify_conn_update(uint16_t handle, uint16_t interval,
|
|
uint16_t latency, uint16_t timeout,
|
|
uint8_t status) {
|
|
tBTM_SEC_DEV_REC* p_dev_rec = btm_find_dev_by_handle(handle);
|
|
if (!p_dev_rec) {
|
|
return;
|
|
}
|
|
|
|
tGATT_TCB* p_tcb =
|
|
gatt_find_tcb_by_addr(p_dev_rec->ble.pseudo_addr, BT_TRANSPORT_LE);
|
|
if (p_tcb == NULL) return;
|
|
|
|
for (int i = 0; i < GATT_MAX_APPS; i++) {
|
|
tGATT_REG* p_reg = &gatt_cb.cl_rcb[i];
|
|
if (p_reg->in_use && p_reg->app_cb.p_conn_update_cb) {
|
|
uint16_t conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, p_reg->gatt_if);
|
|
(*p_reg->app_cb.p_conn_update_cb)(p_reg->gatt_if, conn_id, interval,
|
|
latency, timeout, status);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_le_cong_cback
|
|
*
|
|
* Description This function is called when GATT fixed channel is congested
|
|
* or uncongested.
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
static void gatt_le_cong_cback(const RawAddress& remote_bda, bool congested) {
|
|
tGATT_TCB* p_tcb = gatt_find_tcb_by_addr(remote_bda, BT_TRANSPORT_LE);
|
|
|
|
/* if uncongested, check to see if there is any more pending data */
|
|
if (p_tcb != NULL) {
|
|
gatt_channel_congestion(p_tcb, congested);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_le_data_ind
|
|
*
|
|
* Description This function is called when data is received from L2CAP.
|
|
* if we are the originator of the connection, we are the ATT
|
|
* client, and the received message is queued up for the
|
|
* client.
|
|
*
|
|
* If we are the destination of the connection, we are the ATT
|
|
* server, so the message is passed to the server processing
|
|
* function.
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
static void gatt_le_data_ind(uint16_t chan, const RawAddress& bd_addr,
|
|
BT_HDR* p_buf) {
|
|
tGATT_TCB* p_tcb;
|
|
|
|
/* Find CCB based on bd addr */
|
|
if ((p_tcb = gatt_find_tcb_by_addr(bd_addr, BT_TRANSPORT_LE)) != NULL) {
|
|
if (gatt_get_ch_state(p_tcb) < GATT_CH_OPEN) {
|
|
LOG(WARNING) << "ATT - Ignored L2CAP data while in state: "
|
|
<< +gatt_get_ch_state(p_tcb);
|
|
} else
|
|
gatt_data_process(*p_tcb, p_buf);
|
|
}
|
|
|
|
osi_free(p_buf);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_l2cif_connect_ind
|
|
*
|
|
* Description This function handles an inbound connection indication
|
|
* from L2CAP. This is the case where we are acting as a
|
|
* server.
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
static void gatt_l2cif_connect_ind_cback(const RawAddress& bd_addr,
|
|
uint16_t lcid,
|
|
UNUSED_ATTR uint16_t psm, uint8_t id) {
|
|
/* do we already have a control channel for this peer? */
|
|
uint8_t result = L2CAP_CONN_OK;
|
|
tL2CAP_CFG_INFO cfg;
|
|
tGATT_TCB* p_tcb = gatt_find_tcb_by_addr(bd_addr, BT_TRANSPORT_BR_EDR);
|
|
|
|
LOG(ERROR) << "Connection indication cid = " << +lcid;
|
|
/* new connection ? */
|
|
if (p_tcb == NULL) {
|
|
/* allocate tcb */
|
|
p_tcb = gatt_allocate_tcb_by_bdaddr(bd_addr, BT_TRANSPORT_BR_EDR);
|
|
if (p_tcb == NULL) {
|
|
/* no tcb available, reject L2CAP connection */
|
|
result = L2CAP_CONN_NO_RESOURCES;
|
|
} else
|
|
p_tcb->att_lcid = lcid;
|
|
|
|
} else /* existing connection , reject it */
|
|
{
|
|
result = L2CAP_CONN_NO_RESOURCES;
|
|
}
|
|
|
|
/* Send L2CAP connect rsp */
|
|
L2CA_ConnectRsp(bd_addr, id, lcid, result, 0);
|
|
|
|
/* if result ok, proceed with connection */
|
|
if (result == L2CAP_CONN_OK) {
|
|
/* transition to configuration state */
|
|
gatt_set_ch_state(p_tcb, GATT_CH_CFG);
|
|
|
|
/* Send L2CAP config req */
|
|
memset(&cfg, 0, sizeof(tL2CAP_CFG_INFO));
|
|
cfg.mtu_present = true;
|
|
cfg.mtu = GATT_MAX_MTU_SIZE;
|
|
|
|
L2CA_ConfigReq(lcid, &cfg);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_l2c_connect_cfm_cback
|
|
*
|
|
* Description This is the L2CAP connect confirm callback function.
|
|
*
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
static void gatt_l2cif_connect_cfm_cback(uint16_t lcid, uint16_t result) {
|
|
tGATT_TCB* p_tcb;
|
|
tL2CAP_CFG_INFO cfg;
|
|
|
|
/* look up clcb for this channel */
|
|
p_tcb = gatt_find_tcb_by_cid(lcid);
|
|
if (p_tcb != NULL) {
|
|
VLOG(1) << __func__
|
|
<< StringPrintf(" result: %d ch_state: %d, lcid:0x%x", result,
|
|
gatt_get_ch_state(p_tcb), p_tcb->att_lcid);
|
|
|
|
/* if in correct state */
|
|
if (gatt_get_ch_state(p_tcb) == GATT_CH_CONN) {
|
|
/* if result successful */
|
|
if (result == L2CAP_CONN_OK) {
|
|
/* set channel state */
|
|
gatt_set_ch_state(p_tcb, GATT_CH_CFG);
|
|
|
|
/* Send L2CAP config req */
|
|
memset(&cfg, 0, sizeof(tL2CAP_CFG_INFO));
|
|
cfg.mtu_present = true;
|
|
cfg.mtu = GATT_MAX_MTU_SIZE;
|
|
L2CA_ConfigReq(lcid, &cfg);
|
|
}
|
|
/* else initiating connection failure */
|
|
else {
|
|
gatt_cleanup_upon_disc(p_tcb->peer_bda, result, GATT_TRANSPORT_BR_EDR);
|
|
}
|
|
} else /* wrong state, disconnect it */
|
|
{
|
|
if (result == L2CAP_CONN_OK) {
|
|
/* just in case the peer also accepts our connection - Send L2CAP
|
|
* disconnect req */
|
|
L2CA_DisconnectReq(lcid);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_l2cif_config_cfm_cback
|
|
*
|
|
* Description This is the L2CAP config confirm callback function.
|
|
*
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
void gatt_l2cif_config_cfm_cback(uint16_t lcid, tL2CAP_CFG_INFO* p_cfg) {
|
|
tGATT_TCB* p_tcb;
|
|
tGATTS_SRV_CHG* p_srv_chg_clt = NULL;
|
|
|
|
/* look up clcb for this channel */
|
|
p_tcb = gatt_find_tcb_by_cid(lcid);
|
|
if (p_tcb != NULL) {
|
|
/* if in correct state */
|
|
if (gatt_get_ch_state(p_tcb) == GATT_CH_CFG) {
|
|
/* if result successful */
|
|
if (p_cfg->result == L2CAP_CFG_OK) {
|
|
/* update flags */
|
|
p_tcb->ch_flags |= GATT_L2C_CFG_CFM_DONE;
|
|
|
|
/* if configuration complete */
|
|
if (p_tcb->ch_flags & GATT_L2C_CFG_IND_DONE) {
|
|
gatt_set_ch_state(p_tcb, GATT_CH_OPEN);
|
|
|
|
p_srv_chg_clt = gatt_is_bda_in_the_srv_chg_clt_list(p_tcb->peer_bda);
|
|
if (p_srv_chg_clt != NULL) {
|
|
gatt_chk_srv_chg(p_srv_chg_clt);
|
|
} else {
|
|
if (btm_sec_is_a_bonded_dev(p_tcb->peer_bda))
|
|
gatt_add_a_bonded_dev_for_srv_chg(p_tcb->peer_bda);
|
|
}
|
|
|
|
/* send callback */
|
|
gatt_send_conn_cback(p_tcb);
|
|
}
|
|
}
|
|
/* else failure */
|
|
else {
|
|
/* Send L2CAP disconnect req */
|
|
L2CA_DisconnectReq(lcid);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_l2cif_config_ind_cback
|
|
*
|
|
* Description This is the L2CAP config indication callback function.
|
|
*
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
void gatt_l2cif_config_ind_cback(uint16_t lcid, tL2CAP_CFG_INFO* p_cfg) {
|
|
tGATT_TCB* p_tcb;
|
|
tGATTS_SRV_CHG* p_srv_chg_clt = NULL;
|
|
/* look up clcb for this channel */
|
|
p_tcb = gatt_find_tcb_by_cid(lcid);
|
|
if (p_tcb != NULL) {
|
|
/* GATT uses the smaller of our MTU and peer's MTU */
|
|
if (p_cfg->mtu_present &&
|
|
(p_cfg->mtu >= GATT_MIN_BR_MTU_SIZE && p_cfg->mtu < L2CAP_DEFAULT_MTU))
|
|
p_tcb->payload_size = p_cfg->mtu;
|
|
else
|
|
p_tcb->payload_size = L2CAP_DEFAULT_MTU;
|
|
|
|
/* send L2CAP configure response */
|
|
memset(p_cfg, 0, sizeof(tL2CAP_CFG_INFO));
|
|
p_cfg->result = L2CAP_CFG_OK;
|
|
L2CA_ConfigRsp(lcid, p_cfg);
|
|
|
|
/* if first config ind */
|
|
if ((p_tcb->ch_flags & GATT_L2C_CFG_IND_DONE) == 0) {
|
|
/* update flags */
|
|
p_tcb->ch_flags |= GATT_L2C_CFG_IND_DONE;
|
|
|
|
/* if configuration complete */
|
|
if (p_tcb->ch_flags & GATT_L2C_CFG_CFM_DONE) {
|
|
gatt_set_ch_state(p_tcb, GATT_CH_OPEN);
|
|
p_srv_chg_clt = gatt_is_bda_in_the_srv_chg_clt_list(p_tcb->peer_bda);
|
|
if (p_srv_chg_clt != NULL) {
|
|
gatt_chk_srv_chg(p_srv_chg_clt);
|
|
} else {
|
|
if (btm_sec_is_a_bonded_dev(p_tcb->peer_bda))
|
|
gatt_add_a_bonded_dev_for_srv_chg(p_tcb->peer_bda);
|
|
}
|
|
|
|
/* send callback */
|
|
gatt_send_conn_cback(p_tcb);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_l2cif_disconnect_ind_cback
|
|
*
|
|
* Description This is the L2CAP disconnect indication callback function.
|
|
*
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
void gatt_l2cif_disconnect_ind_cback(uint16_t lcid, bool ack_needed) {
|
|
tGATT_TCB* p_tcb;
|
|
uint16_t reason;
|
|
|
|
/* look up clcb for this channel */
|
|
p_tcb = gatt_find_tcb_by_cid(lcid);
|
|
if (p_tcb != NULL) {
|
|
if (ack_needed) {
|
|
/* send L2CAP disconnect response */
|
|
L2CA_DisconnectRsp(lcid);
|
|
}
|
|
if (gatt_is_bda_in_the_srv_chg_clt_list(p_tcb->peer_bda) == NULL) {
|
|
if (btm_sec_is_a_bonded_dev(p_tcb->peer_bda))
|
|
gatt_add_a_bonded_dev_for_srv_chg(p_tcb->peer_bda);
|
|
}
|
|
/* if ACL link is still up, no reason is logged, l2cap is disconnect from
|
|
* peer */
|
|
reason = L2CA_GetDisconnectReason(p_tcb->peer_bda, p_tcb->transport);
|
|
if (reason == 0) reason = GATT_CONN_TERMINATE_PEER_USER;
|
|
|
|
/* send disconnect callback */
|
|
gatt_cleanup_upon_disc(p_tcb->peer_bda, reason, GATT_TRANSPORT_BR_EDR);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_l2cif_disconnect_cfm_cback
|
|
*
|
|
* Description This is the L2CAP disconnect confirm callback function.
|
|
*
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
static void gatt_l2cif_disconnect_cfm_cback(uint16_t lcid,
|
|
UNUSED_ATTR uint16_t result) {
|
|
tGATT_TCB* p_tcb;
|
|
uint16_t reason;
|
|
|
|
/* look up clcb for this channel */
|
|
p_tcb = gatt_find_tcb_by_cid(lcid);
|
|
if (p_tcb != NULL) {
|
|
/* If the device is not in the service changed client list, add it... */
|
|
if (gatt_is_bda_in_the_srv_chg_clt_list(p_tcb->peer_bda) == NULL) {
|
|
if (btm_sec_is_a_bonded_dev(p_tcb->peer_bda))
|
|
gatt_add_a_bonded_dev_for_srv_chg(p_tcb->peer_bda);
|
|
}
|
|
|
|
/* send disconnect callback */
|
|
/* if ACL link is still up, no reason is logged, l2cap is disconnect from
|
|
* peer */
|
|
reason = L2CA_GetDisconnectReason(p_tcb->peer_bda, p_tcb->transport);
|
|
if (reason == 0) reason = GATT_CONN_TERMINATE_LOCAL_HOST;
|
|
|
|
gatt_cleanup_upon_disc(p_tcb->peer_bda, reason, GATT_TRANSPORT_BR_EDR);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_l2cif_data_ind_cback
|
|
*
|
|
* Description This is the L2CAP data indication callback function.
|
|
*
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
static void gatt_l2cif_data_ind_cback(uint16_t lcid, BT_HDR* p_buf) {
|
|
tGATT_TCB* p_tcb;
|
|
|
|
/* look up clcb for this channel */
|
|
if ((p_tcb = gatt_find_tcb_by_cid(lcid)) != NULL &&
|
|
gatt_get_ch_state(p_tcb) == GATT_CH_OPEN) {
|
|
/* process the data */
|
|
gatt_data_process(*p_tcb, p_buf);
|
|
}
|
|
|
|
osi_free(p_buf);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_l2cif_congest_cback
|
|
*
|
|
* Description L2CAP congestion callback
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
static void gatt_l2cif_congest_cback(uint16_t lcid, bool congested) {
|
|
tGATT_TCB* p_tcb = gatt_find_tcb_by_cid(lcid);
|
|
|
|
if (p_tcb != NULL) {
|
|
gatt_channel_congestion(p_tcb, congested);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_send_conn_cback
|
|
*
|
|
* Description Callback used to notify layer above about a connection.
|
|
*
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
static void gatt_send_conn_cback(tGATT_TCB* p_tcb) {
|
|
uint8_t i;
|
|
tGATT_REG* p_reg;
|
|
uint16_t conn_id;
|
|
|
|
tGATT_BG_CONN_DEV* p_bg_dev = gatt_find_bg_dev(p_tcb->peer_bda);
|
|
|
|
/* notifying all applications for the connection up event */
|
|
for (i = 0, p_reg = gatt_cb.cl_rcb; i < GATT_MAX_APPS; i++, p_reg++) {
|
|
if (p_reg->in_use) {
|
|
if (p_bg_dev && gatt_is_bg_dev_for_app(p_bg_dev, p_reg->gatt_if))
|
|
gatt_update_app_use_link_flag(p_reg->gatt_if, p_tcb, true, true);
|
|
|
|
if (p_reg->app_cb.p_conn_cb) {
|
|
conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, p_reg->gatt_if);
|
|
(*p_reg->app_cb.p_conn_cb)(p_reg->gatt_if, p_tcb->peer_bda, conn_id,
|
|
true, 0, p_tcb->transport);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!p_tcb->app_hold_link.empty() && p_tcb->att_lcid == L2CAP_ATT_CID) {
|
|
/* disable idle timeout if one or more clients are holding the link disable
|
|
* the idle timer */
|
|
GATT_SetIdleTimeout(p_tcb->peer_bda, GATT_LINK_NO_IDLE_TIMEOUT,
|
|
p_tcb->transport);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_le_data_ind
|
|
*
|
|
* Description This function is called when data is received from L2CAP.
|
|
* if we are the originator of the connection, we are the ATT
|
|
* client, and the received message is queued up for the
|
|
* client.
|
|
*
|
|
* If we are the destination of the connection, we are the ATT
|
|
* server, so the message is passed to the server processing
|
|
* function.
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
void gatt_data_process(tGATT_TCB& tcb, BT_HDR* p_buf) {
|
|
uint8_t* p = (uint8_t*)(p_buf + 1) + p_buf->offset;
|
|
uint8_t op_code, pseudo_op_code;
|
|
|
|
if (p_buf->len <= 0) {
|
|
LOG(ERROR) << "invalid data length, ignore";
|
|
return;
|
|
}
|
|
|
|
uint16_t msg_len = p_buf->len - 1;
|
|
STREAM_TO_UINT8(op_code, p);
|
|
|
|
/* remove the two MSBs associated with sign write and write cmd */
|
|
pseudo_op_code = op_code & (~GATT_WRITE_CMD_MASK);
|
|
|
|
if (pseudo_op_code >= GATT_OP_CODE_MAX) {
|
|
LOG(ERROR) << "ATT - Rcvd L2CAP data, unknown cmd: 0x" << std::hex
|
|
<< op_code;
|
|
return;
|
|
}
|
|
|
|
if (op_code == GATT_SIGN_CMD_WRITE) {
|
|
gatt_verify_signature(tcb, p_buf);
|
|
} else {
|
|
/* message from client */
|
|
if ((op_code % 2) == 0)
|
|
gatt_server_handle_client_req(tcb, op_code, msg_len, p);
|
|
else
|
|
gatt_client_handle_server_rsp(tcb, op_code, msg_len, p);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_add_a_bonded_dev_for_srv_chg
|
|
*
|
|
* Description Add a bonded dev to the service changed client list
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
void gatt_add_a_bonded_dev_for_srv_chg(const RawAddress& bda) {
|
|
tGATTS_SRV_CHG_REQ req;
|
|
tGATTS_SRV_CHG srv_chg_clt;
|
|
|
|
srv_chg_clt.bda = bda;
|
|
srv_chg_clt.srv_changed = false;
|
|
if (gatt_add_srv_chg_clt(&srv_chg_clt) != NULL) {
|
|
req.srv_chg.bda = bda;
|
|
req.srv_chg.srv_changed = false;
|
|
if (gatt_cb.cb_info.p_srv_chg_callback)
|
|
(*gatt_cb.cb_info.p_srv_chg_callback)(GATTS_SRV_CHG_CMD_ADD_CLIENT, &req,
|
|
NULL);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_send_srv_chg_ind
|
|
*
|
|
* Description This function is called to send a service chnaged indication
|
|
* to the specified bd address
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
void gatt_send_srv_chg_ind(const RawAddress& peer_bda) {
|
|
uint8_t handle_range[GATT_SIZE_OF_SRV_CHG_HNDL_RANGE];
|
|
uint8_t* p = handle_range;
|
|
uint16_t conn_id;
|
|
|
|
VLOG(1) << "gatt_send_srv_chg_ind";
|
|
|
|
if (gatt_cb.handle_of_h_r) {
|
|
conn_id = gatt_profile_find_conn_id_by_bd_addr(peer_bda);
|
|
if (conn_id != GATT_INVALID_CONN_ID) {
|
|
UINT16_TO_STREAM(p, 1);
|
|
UINT16_TO_STREAM(p, 0xFFFF);
|
|
GATTS_HandleValueIndication(conn_id, gatt_cb.handle_of_h_r,
|
|
GATT_SIZE_OF_SRV_CHG_HNDL_RANGE,
|
|
handle_range);
|
|
} else {
|
|
LOG(ERROR) << "Unable to find conn_id for " << peer_bda;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_chk_srv_chg
|
|
*
|
|
* Description Check sending service chnaged Indication is required or not
|
|
* if required then send the Indication
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
void gatt_chk_srv_chg(tGATTS_SRV_CHG* p_srv_chg_clt) {
|
|
VLOG(1) << __func__ << " srv_changed=" << +p_srv_chg_clt->srv_changed;
|
|
|
|
if (p_srv_chg_clt->srv_changed) {
|
|
gatt_send_srv_chg_ind(p_srv_chg_clt->bda);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_init_srv_chg
|
|
*
|
|
* Description This function is used to initialize the service changed
|
|
* attribute value
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
void gatt_init_srv_chg(void) {
|
|
tGATTS_SRV_CHG_REQ req;
|
|
tGATTS_SRV_CHG_RSP rsp;
|
|
bool status;
|
|
uint8_t num_clients, i;
|
|
tGATTS_SRV_CHG srv_chg_clt;
|
|
|
|
VLOG(1) << __func__;
|
|
if (gatt_cb.cb_info.p_srv_chg_callback) {
|
|
status = (*gatt_cb.cb_info.p_srv_chg_callback)(
|
|
GATTS_SRV_CHG_CMD_READ_NUM_CLENTS, NULL, &rsp);
|
|
|
|
if (status && rsp.num_clients) {
|
|
VLOG(1) << "num_srv_chg_clt_clients=" << +rsp.num_clients;
|
|
num_clients = rsp.num_clients;
|
|
i = 1; /* use one based index */
|
|
while ((i <= num_clients) && status) {
|
|
req.client_read_index = i;
|
|
status = (*gatt_cb.cb_info.p_srv_chg_callback)(
|
|
GATTS_SRV_CHG_CMD_READ_CLENT, &req, &rsp);
|
|
if (status == true) {
|
|
memcpy(&srv_chg_clt, &rsp.srv_chg, sizeof(tGATTS_SRV_CHG));
|
|
if (gatt_add_srv_chg_clt(&srv_chg_clt) == NULL) {
|
|
LOG(ERROR) << "Unable to add a service change client";
|
|
status = false;
|
|
}
|
|
}
|
|
i++;
|
|
}
|
|
}
|
|
} else {
|
|
VLOG(1) << __func__ << " callback not registered yet";
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_proc_srv_chg
|
|
*
|
|
* Description This function is process the service changed request
|
|
*
|
|
* Returns void
|
|
*
|
|
******************************************************************************/
|
|
void gatt_proc_srv_chg(void) {
|
|
uint8_t start_idx, found_idx;
|
|
RawAddress bda;
|
|
tGATT_TCB* p_tcb;
|
|
tBT_TRANSPORT transport;
|
|
|
|
VLOG(1) << __func__;
|
|
|
|
if (gatt_cb.cb_info.p_srv_chg_callback && gatt_cb.handle_of_h_r) {
|
|
gatt_set_srv_chg();
|
|
start_idx = 0;
|
|
while (
|
|
gatt_find_the_connected_bda(start_idx, bda, &found_idx, &transport)) {
|
|
p_tcb = &gatt_cb.tcb[found_idx];
|
|
|
|
bool send_indication = true;
|
|
|
|
if (gatt_is_srv_chg_ind_pending(p_tcb)) {
|
|
send_indication = false;
|
|
VLOG(1) << "discard srv chg - already has one in the queue";
|
|
}
|
|
|
|
// Some LE GATT clients don't respond to service changed indications.
|
|
char remote_name[BTM_MAX_REM_BD_NAME_LEN] = "";
|
|
if (send_indication &&
|
|
btif_storage_get_stored_remote_name(bda, remote_name)) {
|
|
if (interop_match_name(INTEROP_GATTC_NO_SERVICE_CHANGED_IND,
|
|
remote_name)) {
|
|
VLOG(1) << "discard srv chg - interop matched " << remote_name;
|
|
send_indication = false;
|
|
}
|
|
}
|
|
|
|
if (send_indication) gatt_send_srv_chg_ind(bda);
|
|
|
|
start_idx = ++found_idx;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_set_ch_state
|
|
*
|
|
* Description This function set the ch_state in tcb
|
|
*
|
|
* Returns none
|
|
*
|
|
******************************************************************************/
|
|
void gatt_set_ch_state(tGATT_TCB* p_tcb, tGATT_CH_STATE ch_state) {
|
|
if (p_tcb) {
|
|
VLOG(1) << __func__ << ": old=" << +p_tcb->ch_state << " new=" << ch_state;
|
|
p_tcb->ch_state = ch_state;
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Function gatt_get_ch_state
|
|
*
|
|
* Description This function get the ch_state in tcb
|
|
*
|
|
* Returns none
|
|
*
|
|
******************************************************************************/
|
|
tGATT_CH_STATE gatt_get_ch_state(tGATT_TCB* p_tcb) {
|
|
tGATT_CH_STATE ch_state = GATT_CH_CLOSE;
|
|
if (p_tcb) {
|
|
VLOG(1) << "gatt_get_ch_state: ch_state=" << +p_tcb->ch_state;
|
|
ch_state = p_tcb->ch_state;
|
|
}
|
|
return ch_state;
|
|
}
|