//
// Copyright 2015 Google, Inc.
//
// 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.
//
#include <iostream>
#include <string>
#include <base/at_exit.h>
#include <base/command_line.h>
#include <base/logging.h>
#include <base/macros.h>
#include <base/strings/string_number_conversions.h>
#include <base/strings/string_split.h>
#include <base/strings/string_util.h>
#include <binder/IPCThreadState.h>
#include <binder/IServiceManager.h>
#include <binder/ProcessState.h>
#include <android/bluetooth/BnBluetoothCallback.h>
#include <android/bluetooth/BnBluetoothGattClientCallback.h>
#include <android/bluetooth/BnBluetoothLeAdvertiserCallback.h>
#include <android/bluetooth/BnBluetoothLeScannerCallback.h>
#include <android/bluetooth/BnBluetoothLowEnergyCallback.h>
#include <android/bluetooth/IBluetooth.h>
#include <android/bluetooth/IBluetoothGattClient.h>
#include <android/bluetooth/IBluetoothLeAdvertiser.h>
#include <android/bluetooth/IBluetoothLeScanner.h>
#include <android/bluetooth/IBluetoothLowEnergy.h>
#include <bluetooth/adapter_state.h>
#include <bluetooth/low_energy_constants.h>
#include <bluetooth/scan_filter.h>
#include <bluetooth/scan_settings.h>
#include <bluetooth/uuid.h>
using namespace std;
using android::sp;
using android::String8;
using android::String16;
using android::binder::Status;
using android::OK;
using android::getService;
using android::bluetooth::IBluetooth;
using android::bluetooth::IBluetoothGattClient;
using android::bluetooth::IBluetoothLeAdvertiser;
using android::bluetooth::IBluetoothLeScanner;
using android::bluetooth::IBluetoothLowEnergy;
namespace {
#define COLOR_OFF "\x1B[0m"
#define COLOR_RED "\x1B[0;91m"
#define COLOR_GREEN "\x1B[0;92m"
#define COLOR_YELLOW "\x1B[0;93m"
#define COLOR_BLUE "\x1B[0;94m"
#define COLOR_MAGENTA "\x1B[0;95m"
#define COLOR_BOLDGRAY "\x1B[1;30m"
#define COLOR_BOLDWHITE "\x1B[1;37m"
#define COLOR_BOLDYELLOW "\x1B[1;93m"
#define CLEAR_LINE "\x1B[2K"
#define CHECK_ARGS_COUNT(args, op, num, msg) \
if (!((args).size() op num)) { \
PrintError(msg); \
return; \
}
#define CHECK_NO_ARGS(args) \
CHECK_ARGS_COUNT(args, ==, 0, "Expected no arguments")
// TODO(armansito): Clean up this code. Right now everything is in this
// monolithic file. We should organize this into different classes for command
// handling, console output/printing, callback handling, etc.
// (See http://b/23387611)
// Used to synchronize the printing of the command-line prompt and incoming
// Binder callbacks.
std::atomic_bool showing_prompt(false);
// The registered IBluetoothLowEnergy client handle. If |ble_registering| is
// true then an operation to register the client is in progress.
std::atomic_bool ble_registering(false);
std::atomic_int ble_client_id(0);
// The registered IBluetoothLeAdvertiser handle. If |ble_advertiser_registering|
// is true then an operation to register the advertiser is in progress.
const int invalid_advertiser_id = -1;
std::atomic_bool ble_advertiser_registering(false);
std::atomic_int ble_advertiser_id(invalid_advertiser_id);
// The registered IBluetoothLeScanner handle. If |ble_scanner_registering| is
// true then an operation to register the scanner is in progress.
std::atomic_bool ble_scanner_registering(false);
std::atomic_int ble_scanner_id(0);
// The registered IBluetoothGattClient client handle. If |gatt_registering| is
// true then an operation to register the client is in progress.
std::atomic_bool gatt_registering(false);
std::atomic_int gatt_client_id(0);
// True if we should dump the scan record bytes for incoming scan results.
std::atomic_bool dump_scan_record(false);
// True if the remote process has died and we should exit.
std::atomic_bool should_exit(false);
std::string kServiceName = "bluetooth-service";
void PrintPrompt() { cout << COLOR_BLUE "[FCLI] " COLOR_OFF << flush; }
void PrintError(const string& message) {
cout << COLOR_RED << message << COLOR_OFF << endl;
}
void PrintOpStatus(const std::string& op, bool status) {
cout << COLOR_BOLDWHITE << op << " status: " COLOR_OFF
<< (status ? (COLOR_GREEN "success") : (COLOR_RED "failure"))
<< COLOR_OFF << endl;
}
inline void BeginAsyncOut() {
if (showing_prompt.load()) cout << CLEAR_LINE << "\r";
}
inline void EndAsyncOut() {
std::flush(cout);
if (showing_prompt.load())
PrintPrompt();
else
cout << endl;
}
class CLIBluetoothCallback : public android::bluetooth::BnBluetoothCallback {
public:
CLIBluetoothCallback() = default;
~CLIBluetoothCallback() override = default;
// IBluetoothCallback overrides:
Status OnBluetoothStateChange(int32_t prev_state,
int32_t new_state) override {
BeginAsyncOut();
cout << COLOR_BOLDWHITE "Adapter state changed: " COLOR_OFF << COLOR_MAGENTA
<< AdapterStateToString(bluetooth::AdapterState(prev_state))
<< COLOR_OFF << COLOR_BOLDWHITE " -> " COLOR_OFF << COLOR_BOLDYELLOW
<< AdapterStateToString(bluetooth::AdapterState(new_state))
<< COLOR_OFF;
EndAsyncOut();
return Status::ok();
}
Status OnSspRequest(const String16& device_address,
const String16& device_name, int32_t cod,
int32_t pairing_variant, int32_t pass_key) override {
// no-op
return Status::ok();
}
Status OnGetBondedDevices(
int32_t status,
const ::std::vector<String16>& device_addresses) override {
BeginAsyncOut();
std::cout << "Bonded devices:\n";
for (const auto& device_address : device_addresses) {
std::cout << " " << device_address << "\n";
}
EndAsyncOut();
return Status::ok();
}
Status OnBondStateChanged(int32_t status, const String16& device_address,
int32_t state) override {
BeginAsyncOut();
std::cout << COLOR_BOLDWHITE "Device address: " << COLOR_BOLDYELLOW "["
<< device_address << " bond state: " << state << " ] "
<< COLOR_BOLDWHITE "- status: "
<< (status == 0 ? "SUCCESS" : "FAIL") << COLOR_OFF;
EndAsyncOut();
return Status::ok();
}
Status OnGetRemoteDeviceProperties(
int32_t status, const String16& device_address,
const android::bluetooth::BluetoothRemoteDeviceProps& props) override {
// no-op
return Status::ok();
}
Status OnDeviceFound(
const android::bluetooth::BluetoothRemoteDeviceProps& props) override {
// no-op
return Status::ok();
}
Status OnDeviceConnectionStateChanged(const String16& device_address,
bool connected) override {
// no-op
return Status::ok();
}
Status OnScanEnableChanged(bool scan_enabled) override {
// no-op
return Status::ok();
}
private:
DISALLOW_COPY_AND_ASSIGN(CLIBluetoothCallback);
};
class CLIBluetoothLowEnergyCallback
: public android::bluetooth::BnBluetoothLowEnergyCallback {
public:
CLIBluetoothLowEnergyCallback() = default;
~CLIBluetoothLowEnergyCallback() override = default;
// IBluetoothLowEnergyCallback overrides:
Status OnClientRegistered(int status, int client_id) override {
BeginAsyncOut();
if (status != bluetooth::BLE_STATUS_SUCCESS) {
PrintError("Failed to register BLE client");
} else {
ble_client_id = client_id;
cout << COLOR_BOLDWHITE "Registered BLE client with ID: " COLOR_OFF
<< COLOR_GREEN << client_id << COLOR_OFF;
}
EndAsyncOut();
ble_registering = false;
return Status::ok();
}
Status OnConnectionState(int status, int client_id, const String16& address,
bool connected) override {
BeginAsyncOut();
cout << COLOR_BOLDWHITE "Connection state: " << COLOR_BOLDYELLOW "["
<< address << " connected: " << (connected ? "true" : "false") << " ] "
<< COLOR_BOLDWHITE "- status: " << status
<< COLOR_BOLDWHITE " - client_id: " << client_id << COLOR_OFF;
EndAsyncOut();
return Status::ok();
}
Status OnMtuChanged(int status, const String16& address, int mtu) override {
BeginAsyncOut();
cout << COLOR_BOLDWHITE "MTU changed: " << COLOR_BOLDYELLOW "[" << address
<< " ] " << COLOR_BOLDWHITE " - status: " << status
<< COLOR_BOLDWHITE " - mtu: " << mtu << COLOR_OFF;
EndAsyncOut();
return Status::ok();
}
private:
DISALLOW_COPY_AND_ASSIGN(CLIBluetoothLowEnergyCallback);
};
class CLIBluetoothLeAdvertiserCallback
: public android::bluetooth::BnBluetoothLeAdvertiserCallback {
public:
CLIBluetoothLeAdvertiserCallback() = default;
~CLIBluetoothLeAdvertiserCallback() override = default;
// IBluetoothLowEnergyCallback overrides:
Status OnAdvertiserRegistered(int status, int advertiser_id) override {
BeginAsyncOut();
if (status != bluetooth::BLE_STATUS_SUCCESS) {
PrintError("Failed to register BLE advertiser");
} else {
ble_advertiser_id = advertiser_id;
cout << COLOR_BOLDWHITE "Registered BLE advertiser with ID: " COLOR_OFF
<< COLOR_GREEN << advertiser_id << COLOR_OFF;
}
EndAsyncOut();
ble_advertiser_registering = false;
return Status::ok();
}
Status OnMultiAdvertiseCallback(
int status, bool is_start,
const android::bluetooth::AdvertiseSettings& /* settings */) {
BeginAsyncOut();
std::string op = is_start ? "start" : "stop";
PrintOpStatus("Advertising " + op, status == bluetooth::BLE_STATUS_SUCCESS);
EndAsyncOut();
return Status::ok();
}
private:
DISALLOW_COPY_AND_ASSIGN(CLIBluetoothLeAdvertiserCallback);
};
class CLIBluetoothLeScannerCallback
: public android::bluetooth::BnBluetoothLeScannerCallback {
public:
CLIBluetoothLeScannerCallback() = default;
~CLIBluetoothLeScannerCallback() override = default;
// IBluetoothLowEnergyCallback overrides:
Status OnScannerRegistered(int status, int scanner_id) override {
BeginAsyncOut();
if (status != bluetooth::BLE_STATUS_SUCCESS) {
PrintError("Failed to register BLE client");
} else {
ble_scanner_id = scanner_id;
cout << COLOR_BOLDWHITE "Registered BLE client with ID: " COLOR_OFF
<< COLOR_GREEN << scanner_id << COLOR_OFF;
}
EndAsyncOut();
ble_scanner_registering = false;
return Status::ok();
}
Status OnScanResult(
const android::bluetooth::ScanResult& scan_result) override {
BeginAsyncOut();
cout << COLOR_BOLDWHITE "Scan result: " << COLOR_BOLDYELLOW "["
<< scan_result.device_address() << "] "
<< COLOR_BOLDWHITE "- RSSI: " << scan_result.rssi() << COLOR_OFF;
if (dump_scan_record) {
cout << " - Record: "
<< base::HexEncode(scan_result.scan_record().data(),
scan_result.scan_record().size());
}
EndAsyncOut();
return Status::ok();
}
private:
DISALLOW_COPY_AND_ASSIGN(CLIBluetoothLeScannerCallback);
};
class CLIGattClientCallback
: public android::bluetooth::BnBluetoothGattClientCallback {
public:
CLIGattClientCallback() = default;
~CLIGattClientCallback() override = default;
// IBluetoothGattClientCallback overrides:
Status OnClientRegistered(int status, int client_id) override {
BeginAsyncOut();
if (status != bluetooth::BLE_STATUS_SUCCESS) {
PrintError("Failed to register GATT client");
} else {
gatt_client_id = client_id;
cout << COLOR_BOLDWHITE "Registered GATT client with ID: " COLOR_OFF
<< COLOR_GREEN << client_id << COLOR_OFF;
}
EndAsyncOut();
gatt_registering = false;
return Status::ok();
}
private:
DISALLOW_COPY_AND_ASSIGN(CLIGattClientCallback);
};
void PrintCommandStatus(bool status) { PrintOpStatus("Command", status); }
void PrintFieldAndValue(const string& field, const string& value) {
cout << COLOR_BOLDWHITE << field << ": " << COLOR_BOLDYELLOW << value
<< COLOR_OFF << endl;
}
void PrintFieldAndBoolValue(const string& field, bool value) {
PrintFieldAndValue(field, (value ? "true" : "false"));
}
void HandleDisable(IBluetooth* bt_iface, const vector<string>& args) {
CHECK_NO_ARGS(args);
bool status;
bt_iface->Disable(&status);
PrintCommandStatus(status);
}
void HandleEnable(IBluetooth* bt_iface, const vector<string>& args) {
bool status;
bt_iface->Enable(&status);
PrintCommandStatus(status);
}
void HandleGetState(IBluetooth* bt_iface, const vector<string>& args) {
CHECK_NO_ARGS(args);
int32_t st;
bt_iface->GetState(&st);
bluetooth::AdapterState state = static_cast<bluetooth::AdapterState>(st);
PrintFieldAndValue("Adapter state", bluetooth::AdapterStateToString(state));
}
void HandleIsEnabled(IBluetooth* bt_iface, const vector<string>& args) {
CHECK_NO_ARGS(args);
bool enabled;
bt_iface->IsEnabled(&enabled);
PrintFieldAndBoolValue("Adapter enabled", enabled);
}
void HandleGetLocalAddress(IBluetooth* bt_iface, const vector<string>& args) {
CHECK_NO_ARGS(args);
String16 address;
bt_iface->GetAddress(&address);
PrintFieldAndValue("Adapter address", std::string(String8(address).string()));
}
void HandleSetLocalName(IBluetooth* bt_iface, const vector<string>& args) {
CHECK_ARGS_COUNT(args, >=, 1, "No name was given");
std::string name;
for (const auto& arg : args) name += arg + " ";
base::TrimWhitespaceASCII(name, base::TRIM_TRAILING, &name);
bool status;
bt_iface->SetName(String16(String8(name.c_str())), &status);
PrintCommandStatus(status);
}
void HandleGetLocalName(IBluetooth* bt_iface, const vector<string>& args) {
CHECK_NO_ARGS(args);
String16 name;
bt_iface->GetName(&name);
PrintFieldAndValue("Adapter name", std::string(String8(name).string()));
}
void HandleAdapterInfo(IBluetooth* bt_iface, const vector<string>& args) {
CHECK_NO_ARGS(args);
cout << COLOR_BOLDWHITE "Adapter Properties: " COLOR_OFF << endl;
String16 address;
bt_iface->GetAddress(&address);
PrintFieldAndValue("\tAddress", std::string(String8(address).string()));
int adapter_state;
bt_iface->GetState(&adapter_state);
PrintFieldAndValue("\tState",
bluetooth::AdapterStateToString(
static_cast<bluetooth::AdapterState>(adapter_state)));
String16 name;
bt_iface->GetName(&name);
PrintFieldAndValue("\tName", std::string(String8(name).string()));
bool multi_adv;
bt_iface->IsMultiAdvertisementSupported(&multi_adv);
PrintFieldAndBoolValue("\tMulti-Adv. supported", multi_adv);
}
void HandleSupportsMultiAdv(IBluetooth* bt_iface, const vector<string>& args) {
CHECK_NO_ARGS(args);
bool multi_adv;
bt_iface->IsMultiAdvertisementSupported(&multi_adv);
PrintFieldAndBoolValue("Multi-advertisement support", multi_adv);
}
void HandleRegisterBLEAdvertiser(IBluetooth* bt_iface,
const vector<string>& args) {
CHECK_NO_ARGS(args);
if (ble_advertiser_registering.load()) {
PrintError("In progress");
return;
}
if (ble_advertiser_id.load() != invalid_advertiser_id) {
PrintError("Already registered");
return;
}
sp<IBluetoothLeAdvertiser> ble_advertiser_iface;
bt_iface->GetLeAdvertiserInterface(&ble_advertiser_iface);
if (!ble_advertiser_iface.get()) {
PrintError("Failed to obtain handle to Bluetooth Le Advertiser interface");
return;
}
bool status;
ble_advertiser_iface->RegisterAdvertiser(
new CLIBluetoothLeAdvertiserCallback(), &status);
ble_advertiser_registering = status;
PrintCommandStatus(status);
}
void HandleUnregisterBLEAdvertiser(IBluetooth* bt_iface,
const vector<string>& args) {
CHECK_NO_ARGS(args);
if (ble_advertiser_id.load() == invalid_advertiser_id) {
PrintError("Not registered");
return;
}
sp<IBluetoothLeAdvertiser> ble_advertiser_iface;
bt_iface->GetLeAdvertiserInterface(&ble_advertiser_iface);
if (!ble_advertiser_iface.get()) {
PrintError("Failed to obtain handle to Bluetooth Low Energy interface");
return;
}
ble_advertiser_iface->UnregisterAdvertiser(ble_advertiser_id.load());
ble_advertiser_id = invalid_advertiser_id;
PrintCommandStatus(true);
}
void HandleRegisterBLE(IBluetooth* bt_iface, const vector<string>& args) {
CHECK_NO_ARGS(args);
if (ble_registering.load()) {
PrintError("In progress");
return;
}
if (ble_client_id.load()) {
PrintError("Already registered");
return;
}
sp<IBluetoothLowEnergy> ble_iface;
bt_iface->GetLowEnergyInterface(&ble_iface);
if (!ble_iface.get()) {
PrintError("Failed to obtain handle to Bluetooth Low Energy interface");
return;
}
bool status;
ble_iface->RegisterClient(new CLIBluetoothLowEnergyCallback(), &status);
ble_registering = status;
PrintCommandStatus(status);
}
void HandleUnregisterBLE(IBluetooth* bt_iface, const vector<string>& args) {
CHECK_NO_ARGS(args);
if (!ble_client_id.load()) {
PrintError("Not registered");
return;
}
sp<IBluetoothLowEnergy> ble_iface;
bt_iface->GetLowEnergyInterface(&ble_iface);
if (!ble_iface.get()) {
PrintError("Failed to obtain handle to Bluetooth Low Energy interface");
return;
}
ble_iface->UnregisterClient(ble_client_id.load());
ble_client_id = 0;
PrintCommandStatus(true);
}
void HandleUnregisterAllBLE(IBluetooth* bt_iface, const vector<string>& args) {
CHECK_NO_ARGS(args);
sp<IBluetoothLowEnergy> ble_iface;
bt_iface->GetLowEnergyInterface(&ble_iface);
if (!ble_iface.get()) {
PrintError("Failed to obtain handle to Bluetooth Low Energy interface");
return;
}
ble_iface->UnregisterAll();
PrintCommandStatus(true);
}
void HandleRegisterGATT(IBluetooth* bt_iface, const vector<string>& args) {
CHECK_NO_ARGS(args);
if (gatt_registering.load()) {
PrintError("In progress");
return;
}
if (gatt_client_id.load()) {
PrintError("Already registered");
return;
}
sp<IBluetoothGattClient> gatt_iface;
bt_iface->GetGattClientInterface(&gatt_iface);
if (!gatt_iface.get()) {
PrintError("Failed to obtain handle to Bluetooth GATT Client interface");
return;
}
bool status;
gatt_iface->RegisterClient(new CLIGattClientCallback(), &status);
gatt_registering = status;
PrintCommandStatus(status);
}
void HandleUnregisterGATT(IBluetooth* bt_iface, const vector<string>& args) {
CHECK_NO_ARGS(args);
if (!gatt_client_id.load()) {
PrintError("Not registered");
return;
}
sp<IBluetoothGattClient> gatt_iface;
bt_iface->GetGattClientInterface(&gatt_iface);
if (!gatt_iface.get()) {
PrintError("Failed to obtain handle to Bluetooth GATT Client interface");
return;
}
gatt_iface->UnregisterClient(gatt_client_id.load());
gatt_client_id = 0;
PrintCommandStatus(true);
}
void HandleStartAdv(IBluetooth* bt_iface, const vector<string>& args) {
bool include_name = false;
bool include_tx_power = false;
bool connectable = false;
bool set_manufacturer_data = false;
bool set_uuid = false;
bluetooth::Uuid uuid;
for (auto iter = args.begin(); iter != args.end(); ++iter) {
const std::string& arg = *iter;
if (arg == "-n")
include_name = true;
else if (arg == "-t")
include_tx_power = true;
else if (arg == "-c")
connectable = true;
else if (arg == "-m")
set_manufacturer_data = true;
else if (arg == "-u") {
// This flag has a single argument.
++iter;
if (iter == args.end()) {
PrintError("Expected a Uuid after -u");
return;
}
std::string uuid_str = *iter;
bool is_valid = false;
uuid = bluetooth::Uuid::FromString(uuid_str, &is_valid);
if (!is_valid) {
PrintError("Invalid Uuid: " + uuid_str);
return;
}
set_uuid = true;
} else if (arg == "-h") {
static const char kUsage[] =
"Usage: start-adv [flags]\n"
"\n"
"Flags:\n"
"\t-n\tInclude device name\n"
"\t-t\tInclude TX power\n"
"\t-c\tSend connectable adv. packets (default is non-connectable)\n"
"\t-m\tInclude random manufacturer data\n"
"\t-h\tShow this help message\n";
cout << kUsage << endl;
return;
} else {
PrintError("Unrecognized option: " + arg);
return;
}
}
if (ble_advertiser_id.load() == invalid_advertiser_id) {
PrintError("BLE advertiser not registered");
return;
}
sp<IBluetoothLeAdvertiser> ble_advertiser_iface;
bt_iface->GetLeAdvertiserInterface(&ble_advertiser_iface);
if (!ble_advertiser_iface.get()) {
PrintError("Failed to obtain handle to Bluetooth Le Advertiser interface");
return;
}
std::vector<uint8_t> data;
if (set_manufacturer_data) {
data = {{0x07, bluetooth::kEIRTypeManufacturerSpecificData, 0xe0, 0x00, 'T',
'e', 's', 't'}};
}
if (set_uuid) {
// Determine the type and length bytes.
int uuid_size = uuid.GetShortestRepresentationSize();
uint8_t type;
if (uuid_size == bluetooth::Uuid::kNumBytes128)
type = bluetooth::kEIRTypeComplete128BitUuids;
else if (uuid_size == bluetooth::Uuid::kNumBytes32)
type = bluetooth::kEIRTypeComplete32BitUuids;
else if (uuid_size == bluetooth::Uuid::kNumBytes16)
type = bluetooth::kEIRTypeComplete16BitUuids;
else
NOTREACHED() << "Unexpected size: " << uuid_size;
data.push_back(uuid_size + 1);
data.push_back(type);
auto uuid_bytes = uuid.To128BitLE();
int index = (uuid_size == 16) ? 0 : 12;
data.insert(data.end(), uuid_bytes.data() + index,
uuid_bytes.data() + index + uuid_size);
}
base::TimeDelta timeout;
bluetooth::AdvertiseSettings settings(
bluetooth::AdvertiseSettings::MODE_LOW_POWER, timeout,
bluetooth::AdvertiseSettings::TX_POWER_LEVEL_MEDIUM, connectable);
if (include_tx_power) {
data.push_back(0x02);
data.push_back(bluetooth::kEIRTypeTxPower);
data.push_back(0x00);
}
bluetooth::AdvertiseData adv_data(data);
if (include_name) {
String16 name_param;
bt_iface->GetName(&name_param);
std::string name(String8(name_param).string());
data.push_back(name.length() + 1);
data.push_back(bluetooth::kEIRTypeCompleteLocalName);
data.insert(data.begin(), name.c_str(), name.c_str() + name.length());
}
bluetooth::AdvertiseData scan_rsp;
bool status;
ble_advertiser_iface->StartMultiAdvertising(
ble_advertiser_id.load(), adv_data, scan_rsp, settings, &status);
PrintCommandStatus(status);
}
void HandleStopAdv(IBluetooth* bt_iface, const vector<string>& args) {
if (ble_advertiser_id.load() == invalid_advertiser_id) {
PrintError("BLE advertiser not registered");
return;
}
sp<IBluetoothLeAdvertiser> ble_advertiser_iface;
bt_iface->GetLeAdvertiserInterface(&ble_advertiser_iface);
if (!ble_advertiser_iface.get()) {
PrintError("Failed to obtain handle to Bluetooth Low Energy interface");
return;
}
bool status;
ble_advertiser_iface->StopMultiAdvertising(ble_advertiser_id.load(), &status);
PrintCommandStatus(status);
}
void HandleConnect(IBluetooth* bt_iface, const vector<string>& args) {
string address;
if (args.size() != 1) {
PrintError("Expected MAC address as only argument");
return;
}
address = args[0];
if (!ble_client_id.load()) {
PrintError("BLE not registered");
return;
}
sp<IBluetoothLowEnergy> ble_iface;
bt_iface->GetLowEnergyInterface(&ble_iface);
if (!ble_iface.get()) {
PrintError("Failed to obtain handle to Bluetooth Low Energy interface");
return;
}
bool status;
ble_iface->Connect(ble_client_id.load(),
String16(address.c_str(), address.length()),
false /* is_direct */, &status);
PrintCommandStatus(status);
}
void HandleDisconnect(IBluetooth* bt_iface, const vector<string>& args) {
string address;
if (args.size() != 1) {
PrintError("Expected MAC address as only argument");
return;
}
address = args[0];
if (!ble_client_id.load()) {
PrintError("BLE not registered");
return;
}
sp<IBluetoothLowEnergy> ble_iface;
bt_iface->GetLowEnergyInterface(&ble_iface);
if (!ble_iface.get()) {
PrintError("Failed to obtain handle to Bluetooth Low Energy interface");
return;
}
bool status;
ble_iface->Disconnect(ble_client_id.load(),
String16(address.c_str(), address.length()), &status);
PrintCommandStatus(status);
}
void HandleSetMtu(IBluetooth* bt_iface, const vector<string>& args) {
string address;
int mtu;
if (args.size() != 2) {
PrintError("Usage: set-mtu [address] [mtu]");
return;
}
address = args[0];
mtu = std::stoi(args[1]);
if (mtu < 23) {
PrintError("MTU must be 23 or larger");
return;
}
if (!ble_client_id.load()) {
PrintError("BLE not registered");
return;
}
sp<IBluetoothLowEnergy> ble_iface;
bt_iface->GetLowEnergyInterface(&ble_iface);
if (!ble_iface.get()) {
PrintError("Failed to obtain handle to Bluetooth Low Energy interface");
return;
}
bool status;
ble_iface->SetMtu(ble_client_id.load(),
String16(address.c_str(), address.length()), mtu, &status);
PrintCommandStatus(status);
}
void HandleRegisterBLEScanner(IBluetooth* bt_iface,
const vector<string>& args) {
CHECK_NO_ARGS(args);
if (ble_scanner_registering.load()) {
PrintError("In progress");
return;
}
if (ble_scanner_id.load()) {
PrintError("Already registered");
return;
}
sp<IBluetoothLeScanner> ble_scanner_iface;
bt_iface->GetLeScannerInterface(&ble_scanner_iface);
if (!ble_scanner_iface.get()) {
PrintError("Failed to obtain handle to Bluetooth LE Scanner interface");
return;
}
bool status;
ble_scanner_iface->RegisterScanner(new CLIBluetoothLeScannerCallback(),
&status);
ble_scanner_registering = status;
PrintCommandStatus(status);
}
void HandleUnregisterBLEScanner(IBluetooth* bt_iface,
const vector<string>& args) {
CHECK_NO_ARGS(args);
if (!ble_scanner_id.load()) {
PrintError("Not registered");
return;
}
sp<IBluetoothLeScanner> ble_scanner_iface;
bt_iface->GetLeScannerInterface(&ble_scanner_iface);
if (!ble_scanner_iface.get()) {
PrintError("Failed to obtain handle to Bluetooth LE scanner interface");
return;
}
ble_scanner_iface->UnregisterScanner(ble_scanner_id.load());
ble_scanner_id = 0;
PrintCommandStatus(true);
}
void HandleStartLeScan(IBluetooth* bt_iface, const vector<string>& args) {
if (!ble_client_id.load()) {
PrintError("BLE not registered");
return;
}
for (const auto& arg : args) {
if (arg == "-d") {
dump_scan_record = true;
} else if (arg == "-h") {
static const char kUsage[] =
"Usage: start-le-scan [flags]\n"
"\n"
"Flags:\n"
"\t-d\tDump scan record\n"
"\t-h\tShow this help message\n";
cout << kUsage << endl;
return;
}
}
sp<IBluetoothLeScanner> ble_scanner_iface;
bt_iface->GetLeScannerInterface(&ble_scanner_iface);
if (!ble_scanner_iface.get()) {
PrintError("Failed to obtain handle to Bluetooth LE scanner interface");
return;
}
bluetooth::ScanSettings settings;
std::vector<android::bluetooth::ScanFilter> filters;
bool status;
ble_scanner_iface->StartScan(ble_scanner_id.load(), settings, filters,
&status);
PrintCommandStatus(status);
}
void HandleStopLeScan(IBluetooth* bt_iface, const vector<string>& args) {
if (!ble_client_id.load()) {
PrintError("BLE not registered");
return;
}
sp<IBluetoothLeScanner> ble_scanner_iface;
bt_iface->GetLeScannerInterface(&ble_scanner_iface);
if (!ble_scanner_iface.get()) {
PrintError("Failed to obtain handle to Bluetooth LE scanner interface");
return;
}
bool status;
ble_scanner_iface->StopScan(ble_scanner_id.load(), &status);
PrintCommandStatus(status);
}
void HandleHelp(IBluetooth* bt_iface, const vector<string>& args);
struct {
string command;
void (*func)(IBluetooth*, const vector<string>& args);
string help;
} kCommandMap[] = {
{"help", HandleHelp, "\t\t\tDisplay this message"},
{"disable", HandleDisable, "\t\t\tDisable Bluetooth"},
{"enable", HandleEnable, "\t\t\tEnable Bluetooth (-h for options)"},
{"get-state", HandleGetState, "\t\tGet the current adapter state"},
{"is-enabled", HandleIsEnabled, "\t\tReturn if Bluetooth is enabled"},
{"get-local-address", HandleGetLocalAddress,
"\tGet the local adapter address"},
{"set-local-name", HandleSetLocalName, "\t\tSet the local adapter name"},
{"get-local-name", HandleGetLocalName, "\t\tGet the local adapter name"},
{"adapter-info", HandleAdapterInfo, "\t\tPrint adapter properties"},
{"supports-multi-adv", HandleSupportsMultiAdv,
"\tWhether multi-advertisement is currently supported"},
{"register-le-advertiser", HandleRegisterBLEAdvertiser,
"\t\tRegister with the Bluetooth Low Energy Advertiser interface"},
{"unregister-le-advertiser", HandleUnregisterBLEAdvertiser,
"\t\tUnregister from the Bluetooth LE Advertiser interface"},
{"register-ble", HandleRegisterBLE,
"\t\tRegister with the Bluetooth Low Energy interface"},
{"unregister-ble", HandleUnregisterBLE,
"\t\tUnregister from the Bluetooth Low Energy interface"},
{"unregister-all-ble", HandleUnregisterAllBLE,
"\tUnregister all clients from the Bluetooth Low Energy interface"},
{"register-gatt", HandleRegisterGATT,
"\t\tRegister with the Bluetooth GATT Client interface"},
{"unregister-gatt", HandleUnregisterGATT,
"\t\tUnregister from the Bluetooth GATT Client interface"},
{"connect-le", HandleConnect, "\t\tConnect to LE device (-h for options)"},
{"disconnect-le", HandleDisconnect,
"\t\tDisconnect LE device (-h for options)"},
{"set-mtu", HandleSetMtu, "\t\tSet MTU (-h for options)"},
{"start-adv", HandleStartAdv, "\t\tStart advertising (-h for options)"},
{"stop-adv", HandleStopAdv, "\t\tStop advertising"},
{"register-le-scanner", HandleRegisterBLEScanner,
"\t\tRegister with the Bluetooth Low Energy scanner interface"},
{"unregister-le-scanner", HandleUnregisterBLEScanner,
"\t\tUnregister from the Bluetooth LE scanner interface"},
{"start-le-scan", HandleStartLeScan,
"\t\tStart LE device scan (-h for options)"},
{"stop-le-scan", HandleStopLeScan, "\t\tStop LE device scan"},
{},
};
void HandleHelp(IBluetooth* /* bt_iface */, const vector<string>& /* args */) {
cout << endl;
for (int i = 0; kCommandMap[i].func; i++)
cout << "\t" << kCommandMap[i].command << kCommandMap[i].help << endl;
cout << endl;
}
const char kExecuteLong[] = "exec";
const char kExecuteShort[] = "e";
bool ExecuteCommand(const sp<IBluetooth>& bt_iface, std::string& command) {
vector<string> args = base::SplitString(command, " ", base::TRIM_WHITESPACE,
base::SPLIT_WANT_ALL);
if (args.empty()) return true;
// The first argument is the command while the remaining are what we pass to
// the handler functions.
command = args[0];
args.erase(args.begin());
for (int i = 0; kCommandMap[i].func; i++) {
if (command == kCommandMap[i].command) {
kCommandMap[i].func(bt_iface.get(), args);
return true;
}
}
cout << "Unrecognized command: " << command << endl;
return false;
}
} // namespace
class BluetoothDeathRecipient : public android::IBinder::DeathRecipient {
public:
BluetoothDeathRecipient() = default;
~BluetoothDeathRecipient() override = default;
// android::IBinder::DeathRecipient override:
void binderDied(const android::wp<android::IBinder>& /* who */) override {
BeginAsyncOut();
cout << COLOR_BOLDWHITE "The Bluetooth daemon has died" COLOR_OFF << endl;
cout << "\nPress 'ENTER' to exit.";
EndAsyncOut();
android::IPCThreadState::self()->stopProcess();
should_exit = true;
}
private:
DISALLOW_COPY_AND_ASSIGN(BluetoothDeathRecipient);
};
int main(int argc, char* argv[]) {
base::AtExitManager exit_manager;
base::CommandLine::Init(argc, argv);
logging::LoggingSettings log_settings;
if (!logging::InitLogging(log_settings)) {
LOG(ERROR) << "Failed to set up logging";
return EXIT_FAILURE;
}
sp<IBluetooth> bt_iface;
status_t status = getService(String16(kServiceName.c_str()), &bt_iface);
if (status != OK) {
LOG(ERROR) << "Failed to get service binder: '" << kServiceName
<< "' status=" << status;
return EXIT_FAILURE;
}
sp<BluetoothDeathRecipient> dr(new BluetoothDeathRecipient());
if (android::IInterface::asBinder(bt_iface.get())->linkToDeath(dr) !=
android::NO_ERROR) {
LOG(ERROR) << "Failed to register DeathRecipient for IBluetooth";
return EXIT_FAILURE;
}
// Initialize the Binder process thread pool. We have to set this up,
// otherwise, incoming callbacks from IBluetoothCallback will block the main
// thread (in other words, we have to do this as we are a "Binder server").
android::ProcessState::self()->startThreadPool();
// Register Adapter state-change callback
sp<CLIBluetoothCallback> callback = new CLIBluetoothCallback();
bt_iface->RegisterCallback(callback);
cout << COLOR_BOLDWHITE << "Fluoride Command-Line Interface\n"
<< COLOR_OFF << endl
<< "Type \"help\" to see possible commands.\n"
<< endl;
string command;
// Add commands from the command line, if they exist.
auto command_line = base::CommandLine::ForCurrentProcess();
if (command_line->HasSwitch(kExecuteLong)) {
command += command_line->GetSwitchValueASCII(kExecuteLong);
}
if (command_line->HasSwitch(kExecuteShort)) {
if (!command.empty()) command += " ; ";
command += command_line->GetSwitchValueASCII(kExecuteShort);
}
while (true) {
vector<string> commands = base::SplitString(
command, ";", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
for (string command : commands) {
if (!ExecuteCommand(bt_iface, command)) break;
}
commands.clear();
PrintPrompt();
showing_prompt = true;
auto& istream = getline(cin, command);
showing_prompt = false;
if (istream.eof() || should_exit.load()) {
cout << "\nExiting" << endl;
return EXIT_SUCCESS;
}
if (!istream.good()) {
LOG(ERROR) << "An error occured while reading input";
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}