blob: 9188624ba371817693e9c812f960a3633f170eec [file] [log] [blame]
/******************************************************************************
*
* Copyright (C) 2016 The Android Open Source Project
*
* 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.
*
******************************************************************************/
#define LOG_TAG "bt_btif_scanner"
#include <base/bind.h>
#include <base/threading/thread.h>
#include <errno.h>
#include <hardware/bluetooth.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unordered_set>
#include "device/include/controller.h"
#include "btcore/include/bdaddr.h"
#include "btif_common.h"
#include "btif_util.h"
#include <hardware/bt_gatt.h>
#include "advertise_data_parser.h"
#include "bta_api.h"
#include "bta_closure_api.h"
#include "bta_gatt_api.h"
#include "btif_config.h"
#include "btif_dm.h"
#include "btif_gatt.h"
#include "btif_gatt_util.h"
#include "btif_storage.h"
#include "osi/include/log.h"
#include "vendor_api.h"
using base::Bind;
using base::Owned;
using std::vector;
using RegisterCallback = BleScannerInterface::RegisterCallback;
extern const btgatt_callbacks_t* bt_gatt_callbacks;
#define SCAN_CBACK_IN_JNI(P_CBACK, ...) \
do { \
if (bt_gatt_callbacks && bt_gatt_callbacks->scanner->P_CBACK) { \
BTIF_TRACE_API("HAL bt_gatt_callbacks->client->%s", #P_CBACK); \
do_in_jni_thread( \
Bind(bt_gatt_callbacks->scanner->P_CBACK, __VA_ARGS__)); \
} else { \
ASSERTC(0, "Callback is NULL", 0); \
} \
} while (0)
namespace std {
template <>
struct hash<bt_bdaddr_t> {
size_t operator()(const bt_bdaddr_t& f) const {
return f.address[0] + f.address[1] + f.address[2] + f.address[3] +
f.address[4] + f.address[5];
}
};
template <>
struct equal_to<bt_bdaddr_t> {
size_t operator()(const bt_bdaddr_t& x, const bt_bdaddr_t& y) const {
return (memcmp(x.address, y.address, BD_ADDR_LEN) == 0);
}
};
}
namespace {
// all access to this variable should be done on the jni thread
std::unordered_set<bt_bdaddr_t> p_dev_cb;
void btif_gattc_add_remote_bdaddr(BD_ADDR p_bda, uint8_t addr_type) {
bt_bdaddr_t bd_addr;
memcpy(bd_addr.address, p_bda, BD_ADDR_LEN);
p_dev_cb.insert(bd_addr);
}
bool btif_gattc_find_bdaddr(BD_ADDR p_bda) {
bt_bdaddr_t bd_addr;
memcpy(bd_addr.address, p_bda, BD_ADDR_LEN);
return (p_dev_cb.count(bd_addr) != 0);
}
void btif_gattc_init_dev_cb(void) { p_dev_cb.clear(); }
void btif_gatts_upstreams_evt(uint16_t event, char* p_param) {
LOG_VERBOSE(LOG_TAG, "%s: Event %d", __func__, event);
tBTA_GATTC* p_data = (tBTA_GATTC*)p_param;
switch (event) {
case BTA_GATTC_DEREG_EVT:
break;
case BTA_GATTC_SEARCH_CMPL_EVT: {
HAL_CBACK(bt_gatt_callbacks, client->search_complete_cb,
p_data->search_cmpl.conn_id, p_data->search_cmpl.status);
break;
}
default:
LOG_DEBUG(LOG_TAG, "%s: Unhandled event (%d)", __func__, event);
break;
}
}
void bta_gatts_cback(tBTA_GATTC_EVT event, tBTA_GATTC* p_data) {
bt_status_t status =
btif_transfer_context(btif_gatts_upstreams_evt, (uint16_t)event,
(char*)p_data, sizeof(tBTA_GATTC), NULL);
ASSERTC(status == BT_STATUS_SUCCESS, "Context transfer failed!", status);
}
void bta_batch_scan_threshold_cb(tBTM_BLE_REF_VALUE ref_value) {
SCAN_CBACK_IN_JNI(batchscan_threshold_cb, ref_value);
}
void bta_batch_scan_reports_cb(int client_id, tBTA_STATUS status,
uint8_t report_format, uint8_t num_records,
std::vector<uint8_t> data) {
SCAN_CBACK_IN_JNI(batchscan_reports_cb, client_id, status, report_format,
num_records, std::move(data));
}
void bta_scan_results_cb_impl(bt_bdaddr_t bd_addr, tBT_DEVICE_TYPE device_type,
int8_t rssi, uint8_t addr_type,
uint16_t ble_evt_type, uint8_t ble_primary_phy,
uint8_t ble_secondary_phy,
uint8_t ble_advertising_sid, int8_t ble_tx_power,
uint16_t ble_periodic_adv_int,
vector<uint8_t> value) {
uint8_t remote_name_len;
bt_device_type_t dev_type;
bt_property_t properties;
const uint8_t* p_eir_remote_name = AdvertiseDataParser::GetFieldByType(
value, BTM_EIR_COMPLETE_LOCAL_NAME_TYPE, &remote_name_len);
if (p_eir_remote_name == NULL) {
p_eir_remote_name = AdvertiseDataParser::GetFieldByType(
value, BT_EIR_SHORTENED_LOCAL_NAME_TYPE, &remote_name_len);
}
if ((addr_type != BLE_ADDR_RANDOM) || (p_eir_remote_name)) {
if (!btif_gattc_find_bdaddr(bd_addr.address)) {
btif_gattc_add_remote_bdaddr(bd_addr.address, addr_type);
if (p_eir_remote_name) {
if (remote_name_len > BD_NAME_LEN + 1 ||
(remote_name_len == BD_NAME_LEN + 1 &&
p_eir_remote_name[BD_NAME_LEN] != '\0')) {
LOG_INFO(LOG_TAG,
"%s dropping invalid packet - device name too long: %d",
__func__, remote_name_len);
return;
}
bt_bdname_t bdname;
memcpy(bdname.name, p_eir_remote_name, remote_name_len);
if (remote_name_len < BD_NAME_LEN + 1)
bdname.name[remote_name_len] = '\0';
LOG_VERBOSE(LOG_TAG, "%s BLE device name=%s len=%d dev_type=%d",
__func__, bdname.name, remote_name_len, device_type);
btif_dm_update_ble_remote_properties(bd_addr.address, bdname.name,
device_type);
}
}
}
dev_type = (bt_device_type_t)device_type;
BTIF_STORAGE_FILL_PROPERTY(&properties, BT_PROPERTY_TYPE_OF_DEVICE,
sizeof(dev_type), &dev_type);
btif_storage_set_remote_device_property(&(bd_addr), &properties);
btif_storage_set_remote_addr_type(&bd_addr, addr_type);
HAL_CBACK(bt_gatt_callbacks, scanner->scan_result_cb, ble_evt_type, addr_type,
&bd_addr, ble_primary_phy, ble_secondary_phy, ble_advertising_sid,
ble_tx_power, rssi, ble_periodic_adv_int, std::move(value));
}
void bta_scan_results_cb(tBTA_DM_SEARCH_EVT event, tBTA_DM_SEARCH* p_data) {
uint8_t len;
if (event == BTA_DM_INQ_CMPL_EVT) {
BTIF_TRACE_DEBUG("%s BLE observe complete. Num Resp %d", __func__,
p_data->inq_cmpl.num_resps);
return;
}
if (event != BTA_DM_INQ_RES_EVT) {
BTIF_TRACE_WARNING("%s : Unknown event 0x%x", __func__, event);
return;
}
vector<uint8_t> value;
if (p_data->inq_res.p_eir) {
value.insert(value.begin(), p_data->inq_res.p_eir,
p_data->inq_res.p_eir + p_data->inq_res.eir_len);
if (AdvertiseDataParser::GetFieldByType(
value, BTM_EIR_COMPLETE_LOCAL_NAME_TYPE, &len)) {
p_data->inq_res.remt_name_not_required = true;
}
}
tBTA_DM_INQ_RES* r = &p_data->inq_res;
bt_bdaddr_t bdaddr;
bdcpy(bdaddr.address, r->bd_addr);
do_in_jni_thread(Bind(bta_scan_results_cb_impl, bdaddr, r->device_type,
r->rssi, r->ble_addr_type, r->ble_evt_type,
r->ble_primary_phy, r->ble_secondary_phy,
r->ble_advertising_sid, r->ble_tx_power,
r->ble_periodic_adv_int, std::move(value)));
}
void bta_track_adv_event_cb(tBTM_BLE_TRACK_ADV_DATA* p_track_adv_data) {
btgatt_track_adv_info_t* btif_scan_track_cb = new btgatt_track_adv_info_t;
BTIF_TRACE_DEBUG("%s", __func__);
btif_gatt_move_track_adv_data(btif_scan_track_cb,
(btgatt_track_adv_info_t*)p_track_adv_data);
SCAN_CBACK_IN_JNI(track_adv_event_cb, Owned(btif_scan_track_cb));
}
class BleScannerInterfaceImpl : public BleScannerInterface {
~BleScannerInterfaceImpl(){};
void RegisterScanner(RegisterCallback cb) override {
do_in_bta_thread(FROM_HERE,
Bind(
[](RegisterCallback cb) {
BTA_GATTC_AppRegister(
bta_gatts_cback,
jni_thread_wrapper(FROM_HERE, std::move(cb)));
},
std::move(cb)));
}
void Unregister(int scanner_id) override {
do_in_bta_thread(FROM_HERE, Bind(&BTA_GATTC_AppDeregister, scanner_id));
}
void Scan(bool start) override {
do_in_jni_thread(Bind(
[](bool start) {
if (!start) {
do_in_bta_thread(FROM_HERE,
Bind(&BTA_DmBleObserve, false, 0, nullptr));
return;
}
btif_gattc_init_dev_cb();
do_in_bta_thread(FROM_HERE,
Bind(&BTA_DmBleObserve, true, 0,
(tBTA_DM_SEARCH_CBACK*)bta_scan_results_cb));
},
start));
}
void ScanFilterParamSetup(
uint8_t client_if, uint8_t action, uint8_t filt_index,
std::unique_ptr<btgatt_filt_param_setup_t> filt_param,
FilterParamSetupCallback cb) override {
BTIF_TRACE_DEBUG("%s", __func__);
if (filt_param && filt_param->dely_mode == 1) {
do_in_bta_thread(
FROM_HERE, base::Bind(BTM_BleTrackAdvertiser, bta_track_adv_event_cb,
client_if));
}
do_in_bta_thread(FROM_HERE,
base::Bind(&BTM_BleAdvFilterParamSetup, action, filt_index,
base::Passed(&filt_param),
jni_thread_wrapper(FROM_HERE, std::move(cb))));
}
void ScanFilterAddRemove(int action, int filt_type, int filt_index,
int company_id, int company_id_mask,
const bt_uuid_t* p_uuid,
const bt_uuid_t* p_uuid_mask,
const bt_bdaddr_t* bd_addr, char addr_type,
vector<uint8_t> data, vector<uint8_t> mask,
FilterConfigCallback cb) override {
BTIF_TRACE_DEBUG("%s, %d, %d", __func__, action, filt_type);
/* If data is passed, both mask and data have to be the same length */
if (data.size() != mask.size() && data.size() != 0 && mask.size() != 0)
return;
switch (filt_type) {
case BTM_BLE_PF_ADDR_FILTER: {
tBLE_BD_ADDR target_addr;
bdcpy(target_addr.bda, bd_addr->address);
target_addr.type = addr_type;
do_in_bta_thread(
FROM_HERE,
base::Bind(&BTM_LE_PF_addr_filter, action, filt_index,
std::move(target_addr),
jni_thread_wrapper(FROM_HERE, Bind(cb, filt_type))));
return;
}
case BTM_BLE_PF_SRVC_DATA:
do_in_bta_thread(FROM_HERE,
base::Bind(&BTM_LE_PF_srvc_data, action, filt_index));
return;
case BTM_BLE_PF_SRVC_UUID:
case BTM_BLE_PF_SRVC_SOL_UUID: {
tBT_UUID bt_uuid;
btif_to_bta_uuid(&bt_uuid, p_uuid);
if (p_uuid_mask == NULL) {
do_in_bta_thread(
FROM_HERE,
base::Bind(&BTM_LE_PF_uuid_filter, action, filt_index, filt_type,
bt_uuid, BTM_BLE_PF_LOGIC_AND, nullptr,
jni_thread_wrapper(FROM_HERE, Bind(cb, filt_type))));
return;
}
tBTM_BLE_PF_COND_MASK* mask = new tBTM_BLE_PF_COND_MASK;
btif_to_bta_uuid_mask(mask, p_uuid_mask, p_uuid);
do_in_bta_thread(
FROM_HERE,
base::Bind(&BTM_LE_PF_uuid_filter, action, filt_index, filt_type,
bt_uuid, BTM_BLE_PF_LOGIC_AND, base::Owned(mask),
jni_thread_wrapper(FROM_HERE, Bind(cb, filt_type))));
return;
}
case BTM_BLE_PF_LOCAL_NAME: {
do_in_bta_thread(
FROM_HERE,
base::Bind(&BTM_LE_PF_local_name, action, filt_index,
std::move(data),
jni_thread_wrapper(FROM_HERE, Bind(cb, filt_type))));
return;
}
case BTM_BLE_PF_MANU_DATA: {
do_in_bta_thread(
FROM_HERE,
base::Bind(&BTM_LE_PF_manu_data, action, filt_index, company_id,
company_id_mask, std::move(data), std::move(mask),
jni_thread_wrapper(FROM_HERE, Bind(cb, filt_type))));
return;
}
case BTM_BLE_PF_SRVC_DATA_PATTERN: {
do_in_bta_thread(
FROM_HERE,
base::Bind(&BTM_LE_PF_srvc_data_pattern, action, filt_index,
std::move(data), std::move(mask),
jni_thread_wrapper(FROM_HERE, Bind(cb, filt_type))));
return;
}
default:
LOG_ERROR(LOG_TAG, "%s: Unknown filter type (%d)!", __func__, action);
return;
}
}
void ScanFilterClear(int filter_index, FilterConfigCallback cb) override {
BTIF_TRACE_DEBUG("%s: filter_index: %d", __func__, filter_index);
do_in_bta_thread(FROM_HERE,
base::Bind(&BTM_LE_PF_clear, filter_index,
jni_thread_wrapper(
FROM_HERE, Bind(cb, BTM_BLE_PF_TYPE_ALL))));
}
void ScanFilterEnable(bool enable, EnableCallback cb) override {
BTIF_TRACE_DEBUG("%s: enable: %d", __func__, enable);
uint8_t action = enable ? 1 : 0;
do_in_bta_thread(FROM_HERE,
base::Bind(&BTM_BleEnableDisableFilterFeature, action,
jni_thread_wrapper(FROM_HERE, std::move(cb))));
}
void SetScanParameters(int scan_interval, int scan_window,
Callback cb) override {
do_in_bta_thread(
FROM_HERE, base::Bind(&BTM_BleSetScanParams, scan_interval, scan_window,
BTM_BLE_SCAN_MODE_ACTI,
jni_thread_wrapper(FROM_HERE, std::move(cb))));
}
void BatchscanConfigStorage(int client_if, int batch_scan_full_max,
int batch_scan_trunc_max,
int batch_scan_notify_threshold,
Callback cb) override {
do_in_bta_thread(
FROM_HERE,
base::Bind(&BTM_BleSetStorageConfig, (uint8_t)batch_scan_full_max,
(uint8_t)batch_scan_trunc_max,
(uint8_t)batch_scan_notify_threshold,
jni_thread_wrapper(FROM_HERE, cb),
bta_batch_scan_threshold_cb, (tBTM_BLE_REF_VALUE)client_if));
}
void BatchscanEnable(int scan_mode, int scan_interval, int scan_window,
int addr_type, int discard_rule, Callback cb) override {
do_in_bta_thread(
FROM_HERE, base::Bind(&BTM_BleEnableBatchScan, scan_mode, scan_interval,
scan_window, discard_rule, addr_type,
jni_thread_wrapper(FROM_HERE, cb)));
}
void BatchscanDisable(Callback cb) override {
do_in_bta_thread(FROM_HERE, base::Bind(&BTM_BleDisableBatchScan,
jni_thread_wrapper(FROM_HERE, cb)));
}
void BatchscanReadReports(int client_if, int scan_mode) override {
do_in_bta_thread(FROM_HERE,
base::Bind(&BTM_BleReadScanReports, (uint8_t)scan_mode,
Bind(bta_batch_scan_reports_cb, client_if)));
}
void StartSync(uint8_t sid, bt_bdaddr_t address, uint16_t skip,
uint16_t timeout, StartSyncCb start_cb, SyncReportCb report_cb,
SyncLostCb lost_cb) override {}
void StopSync(uint16_t handle) override {}
};
BleScannerInterface* btLeScannerInstance = nullptr;
} // namespace
BleScannerInterface* get_ble_scanner_instance() {
if (btLeScannerInstance == nullptr)
btLeScannerInstance = new BleScannerInterfaceImpl();
return btLeScannerInstance;
}