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android / platform / packages / apps / Bluetooth / 18b3d041032786e6ae392d3f613377c1b9387952 / . / jni / com_android_bluetooth_btservice_AdapterService.cpp
blob: 62c7d522d45202947d4d23e2f518e1f626ecfc02 [file] [log] [blame]
/*
* Copyright (C) 2012 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 "BluetoothServiceJni"
#include "com_android_bluetooth.h"
#include "hardware/bt_sock.h"
#include "utils/Log.h"
#include "utils/misc.h"
#include <dlfcn.h>
#include <errno.h>
#include <pthread.h>
#include <string.h>
#include <fcntl.h>
#include <sys/prctl.h>
#include <sys/stat.h>
#include <hardware/bluetooth.h>
#include <nativehelper/JNIPlatformHelp.h>
#include <mutex>
#include <pthread.h>
using bluetooth::Uuid;
namespace android {
// Both
// OOB_ADDRESS_SIZE is 6 bytes address + 1 byte address type
#define OOB_ADDRESS_SIZE 7
#define OOB_C_SIZE 16
#define OOB_R_SIZE 16
#define OOB_NAME_MAX_SIZE 256
// Classic
#define OOB_DATA_LEN_SIZE 2
#define OOB_COD_SIZE 3
// LE
#define OOB_TK_SIZE 16
#define OOB_LE_FLAG_SIZE 1
#define OOB_LE_ROLE_SIZE 1
#define OOB_LE_APPEARANCE_SIZE 2
#define TRANSPORT_AUTO 0
#define TRANSPORT_BREDR 1
#define TRANSPORT_LE 2
const jint INVALID_FD = -1;
static jmethodID method_oobDataReceivedCallback;
static jmethodID method_stateChangeCallback;
static jmethodID method_adapterPropertyChangedCallback;
static jmethodID method_devicePropertyChangedCallback;
static jmethodID method_deviceFoundCallback;
static jmethodID method_pinRequestCallback;
static jmethodID method_sspRequestCallback;
static jmethodID method_bondStateChangeCallback;
static jmethodID method_aclStateChangeCallback;
static jmethodID method_discoveryStateChangeCallback;
static jmethodID method_linkQualityReportCallback;
static jmethodID method_setWakeAlarm;
static jmethodID method_acquireWakeLock;
static jmethodID method_releaseWakeLock;
static jmethodID method_energyInfo;
static struct {
jclass clazz;
jmethodID constructor;
} android_bluetooth_UidTraffic;
static const bt_interface_t* sBluetoothInterface = NULL;
static const btsock_interface_t* sBluetoothSocketInterface = NULL;
static JavaVM* vm = NULL;
static JNIEnv* callbackEnv = NULL;
static pthread_t sCallbackThread;
static bool sHaveCallbackThread;
static jobject sJniAdapterServiceObj;
static jobject sJniCallbacksObj;
static jfieldID sJniCallbacksField;
const bt_interface_t* getBluetoothInterface() { return sBluetoothInterface; }
JNIEnv* getCallbackEnv() { return callbackEnv; }
bool isCallbackThread() {
return sHaveCallbackThread && pthread_equal(sCallbackThread, pthread_self());
}
static void adapter_state_change_callback(bt_state_t status) {
CallbackEnv sCallbackEnv(__func__);
if (!sCallbackEnv.valid()) return;
ALOGV("%s: Status is: %d", __func__, status);
sCallbackEnv->CallVoidMethod(sJniCallbacksObj, method_stateChangeCallback,
(jint)status);
}
static int get_properties(int num_properties, bt_property_t* properties,
jintArray* types, jobjectArray* props) {
for (int i = 0; i < num_properties; i++) {
ScopedLocalRef<jbyteArray> propVal(
callbackEnv, callbackEnv->NewByteArray(properties[i].len));
if (!propVal.get()) {
ALOGE("Error while allocation of array in %s", __func__);
return -1;
}
callbackEnv->SetByteArrayRegion(propVal.get(), 0, properties[i].len,
(jbyte*)properties[i].val);
callbackEnv->SetObjectArrayElement(*props, i, propVal.get());
callbackEnv->SetIntArrayRegion(*types, i, 1, (jint*)&properties[i].type);
}
return 0;
}
static void adapter_properties_callback(bt_status_t status, int num_properties,
bt_property_t* properties) {
CallbackEnv sCallbackEnv(__func__);
if (!sCallbackEnv.valid()) return;
ALOGV("%s: Status is: %d, Properties: %d", __func__, status, num_properties);
if (status != BT_STATUS_SUCCESS) {
ALOGE("%s: Status %d is incorrect", __func__, status);
return;
}
ScopedLocalRef<jbyteArray> val(
sCallbackEnv.get(),
(jbyteArray)sCallbackEnv->NewByteArray(num_properties));
if (!val.get()) {
ALOGE("%s: Error allocating byteArray", __func__);
return;
}
ScopedLocalRef<jclass> mclass(sCallbackEnv.get(),
sCallbackEnv->GetObjectClass(val.get()));
/* (BT) Initialize the jobjectArray and jintArray here itself and send the
initialized array pointers alone to get_properties */
ScopedLocalRef<jobjectArray> props(
sCallbackEnv.get(),
sCallbackEnv->NewObjectArray(num_properties, mclass.get(), NULL));
if (!props.get()) {
ALOGE("%s: Error allocating object Array for properties", __func__);
return;
}
ScopedLocalRef<jintArray> types(
sCallbackEnv.get(), (jintArray)sCallbackEnv->NewIntArray(num_properties));
if (!types.get()) {
ALOGE("%s: Error allocating int Array for values", __func__);
return;
}
jintArray typesPtr = types.get();
jobjectArray propsPtr = props.get();
if (get_properties(num_properties, properties, &typesPtr, &propsPtr) < 0) {
return;
}
sCallbackEnv->CallVoidMethod(sJniCallbacksObj,
method_adapterPropertyChangedCallback,
types.get(), props.get());
}
static void remote_device_properties_callback(bt_status_t status,
RawAddress* bd_addr,
int num_properties,
bt_property_t* properties) {
CallbackEnv sCallbackEnv(__func__);
if (!sCallbackEnv.valid()) return;
ALOGV("%s: Status is: %d, Properties: %d", __func__, status, num_properties);
if (status != BT_STATUS_SUCCESS) {
ALOGE("%s: Status %d is incorrect", __func__, status);
return;
}
ScopedLocalRef<jbyteArray> val(
sCallbackEnv.get(),
(jbyteArray)sCallbackEnv->NewByteArray(num_properties));
if (!val.get()) {
ALOGE("%s: Error allocating byteArray", __func__);
return;
}
ScopedLocalRef<jclass> mclass(sCallbackEnv.get(),
sCallbackEnv->GetObjectClass(val.get()));
/* Initialize the jobjectArray and jintArray here itself and send the
initialized array pointers alone to get_properties */
ScopedLocalRef<jobjectArray> props(
sCallbackEnv.get(),
sCallbackEnv->NewObjectArray(num_properties, mclass.get(), NULL));
if (!props.get()) {
ALOGE("%s: Error allocating object Array for properties", __func__);
return;
}
ScopedLocalRef<jintArray> types(
sCallbackEnv.get(), (jintArray)sCallbackEnv->NewIntArray(num_properties));
if (!types.get()) {
ALOGE("%s: Error allocating int Array for values", __func__);
return;
}
ScopedLocalRef<jbyteArray> addr(
sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(RawAddress)));
if (!addr.get()) {
ALOGE("Error while allocation byte array in %s", __func__);
return;
}
sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(RawAddress),
(jbyte*)bd_addr);
jintArray typesPtr = types.get();
jobjectArray propsPtr = props.get();
if (get_properties(num_properties, properties, &typesPtr, &propsPtr) < 0) {
return;
}
sCallbackEnv->CallVoidMethod(sJniCallbacksObj,
method_devicePropertyChangedCallback, addr.get(),
types.get(), props.get());
}
static void device_found_callback(int num_properties,
bt_property_t* properties) {
CallbackEnv sCallbackEnv(__func__);
if (!sCallbackEnv.valid()) return;
ScopedLocalRef<jbyteArray> addr(sCallbackEnv.get(), NULL);
int addr_index;
for (int i = 0; i < num_properties; i++) {
if (properties[i].type == BT_PROPERTY_BDADDR) {
addr.reset(sCallbackEnv->NewByteArray(properties[i].len));
if (!addr.get()) {
ALOGE("Address is NULL (unable to allocate) in %s", __func__);
return;
}
sCallbackEnv->SetByteArrayRegion(addr.get(), 0, properties[i].len,
(jbyte*)properties[i].val);
addr_index = i;
}
}
if (!addr.get()) {
ALOGE("Address is NULL in %s", __func__);
return;
}
ALOGV("%s: Properties: %d, Address: %s", __func__, num_properties,
(const char*)properties[addr_index].val);
remote_device_properties_callback(BT_STATUS_SUCCESS,
(RawAddress*)properties[addr_index].val,
num_properties, properties);
sCallbackEnv->CallVoidMethod(sJniCallbacksObj, method_deviceFoundCallback,
addr.get());
}
static void bond_state_changed_callback(bt_status_t status, RawAddress* bd_addr,
bt_bond_state_t state) {
CallbackEnv sCallbackEnv(__func__);
if (!sCallbackEnv.valid()) return;
if (!bd_addr) {
ALOGE("Address is null in %s", __func__);
return;
}
ScopedLocalRef<jbyteArray> addr(
sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(RawAddress)));
if (!addr.get()) {
ALOGE("Address allocation failed in %s", __func__);
return;
}
sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(RawAddress),
(jbyte*)bd_addr);
sCallbackEnv->CallVoidMethod(sJniCallbacksObj, method_bondStateChangeCallback,
(jint)status, addr.get(), (jint)state);
}
static void acl_state_changed_callback(bt_status_t status, RawAddress* bd_addr,
bt_acl_state_t state, bt_hci_error_code_t hci_reason) {
if (!bd_addr) {
ALOGE("Address is null in %s", __func__);
return;
}
CallbackEnv sCallbackEnv(__func__);
if (!sCallbackEnv.valid()) return;
ScopedLocalRef<jbyteArray> addr(
sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(RawAddress)));
if (!addr.get()) {
ALOGE("Address allocation failed in %s", __func__);
return;
}
sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(RawAddress),
(jbyte*)bd_addr);
sCallbackEnv->CallVoidMethod(sJniCallbacksObj, method_aclStateChangeCallback,
(jint)status, addr.get(), (jint)state, (jint)hci_reason);
}
static void discovery_state_changed_callback(bt_discovery_state_t state) {
CallbackEnv sCallbackEnv(__func__);
if (!sCallbackEnv.valid()) return;
ALOGV("%s: DiscoveryState:%d ", __func__, state);
sCallbackEnv->CallVoidMethod(
sJniCallbacksObj, method_discoveryStateChangeCallback, (jint)state);
}
static void pin_request_callback(RawAddress* bd_addr, bt_bdname_t* bdname,
uint32_t cod, bool min_16_digits) {
if (!bd_addr) {
ALOGE("Address is null in %s", __func__);
return;
}
CallbackEnv sCallbackEnv(__func__);
if (!sCallbackEnv.valid()) return;
ScopedLocalRef<jbyteArray> addr(
sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(RawAddress)));
if (!addr.get()) {
ALOGE("Error while allocating in: %s", __func__);
return;
}
sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(RawAddress),
(jbyte*)bd_addr);
ScopedLocalRef<jbyteArray> devname(
sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(bt_bdname_t)));
if (!devname.get()) {
ALOGE("Error while allocating in: %s", __func__);
return;
}
sCallbackEnv->SetByteArrayRegion(devname.get(), 0, sizeof(bt_bdname_t),
(jbyte*)bdname);
sCallbackEnv->CallVoidMethod(sJniCallbacksObj, method_pinRequestCallback,
addr.get(), devname.get(), cod, min_16_digits);
}
static void ssp_request_callback(RawAddress* bd_addr, bt_bdname_t* bdname,
uint32_t cod, bt_ssp_variant_t pairing_variant,
uint32_t pass_key) {
if (!bd_addr) {
ALOGE("Address is null in %s", __func__);
return;
}
CallbackEnv sCallbackEnv(__func__);
if (!sCallbackEnv.valid()) return;
ScopedLocalRef<jbyteArray> addr(
sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(RawAddress)));
if (!addr.get()) {
ALOGE("Error while allocating in: %s", __func__);
return;
}
sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(RawAddress),
(jbyte*)bd_addr);
ScopedLocalRef<jbyteArray> devname(
sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(bt_bdname_t)));
if (!devname.get()) {
ALOGE("Error while allocating in: %s", __func__);
return;
}
sCallbackEnv->SetByteArrayRegion(devname.get(), 0, sizeof(bt_bdname_t),
(jbyte*)bdname);
sCallbackEnv->CallVoidMethod(sJniCallbacksObj, method_sspRequestCallback,
addr.get(), devname.get(), cod,
(jint)pairing_variant, pass_key);
}
static jobject createClassicOobDataObject(JNIEnv* env, bt_oob_data_t oob_data) {
ALOGV("%s", __func__);
jclass classicBuilderClass =
env->FindClass("android/bluetooth/OobData$ClassicBuilder");
jbyteArray confirmationHash = env->NewByteArray(OOB_C_SIZE);
env->SetByteArrayRegion(confirmationHash, 0, OOB_C_SIZE,
reinterpret_cast<jbyte*>(oob_data.c));
jbyteArray oobDataLength = env->NewByteArray(OOB_DATA_LEN_SIZE);
env->SetByteArrayRegion(oobDataLength, 0, OOB_DATA_LEN_SIZE,
reinterpret_cast<jbyte*>(oob_data.oob_data_length));
jbyteArray address = env->NewByteArray(OOB_ADDRESS_SIZE);
env->SetByteArrayRegion(address, 0, OOB_ADDRESS_SIZE,
reinterpret_cast<jbyte*>(oob_data.address));
jmethodID classicBuilderConstructor =
env->GetMethodID(classicBuilderClass, "<init>", "([B[B[B)V");
jobject oobDataClassicBuilder =
env->NewObject(classicBuilderClass, classicBuilderConstructor,
confirmationHash, oobDataLength, address);
jmethodID setRMethod =
env->GetMethodID(classicBuilderClass, "setRandomizerHash",
"([B)Landroid/bluetooth/OobData$ClassicBuilder;");
jbyteArray randomizerHash = env->NewByteArray(OOB_R_SIZE);
env->SetByteArrayRegion(randomizerHash, 0, OOB_R_SIZE,
reinterpret_cast<jbyte*>(oob_data.r));
oobDataClassicBuilder =
env->CallObjectMethod(oobDataClassicBuilder, setRMethod, randomizerHash);
jmethodID setNameMethod =
env->GetMethodID(classicBuilderClass, "setDeviceName",
"([B)Landroid/bluetooth/OobData$ClassicBuilder;");
int name_char_count = 0;
for (int i = 0; i < OOB_NAME_MAX_SIZE; i++) {
if (oob_data.device_name[i] == 0) {
name_char_count = i;
break;
}
}
jbyteArray deviceName = env->NewByteArray(name_char_count);
env->SetByteArrayRegion(deviceName, 0, name_char_count,
reinterpret_cast<jbyte*>(oob_data.device_name));
oobDataClassicBuilder =
env->CallObjectMethod(oobDataClassicBuilder, setNameMethod, deviceName);
jmethodID buildMethod = env->GetMethodID(classicBuilderClass, "build",
"()Landroid/bluetooth/OobData;");
return env->CallObjectMethod(oobDataClassicBuilder, buildMethod);
}
static jobject createLeOobDataObject(JNIEnv* env, bt_oob_data_t oob_data) {
ALOGV("%s", __func__);
jclass leBuilderClass = env->FindClass("android/bluetooth/OobData$LeBuilder");
jbyteArray confirmationHash = env->NewByteArray(OOB_C_SIZE);
env->SetByteArrayRegion(confirmationHash, 0, OOB_C_SIZE,
reinterpret_cast<jbyte*>(oob_data.c));
jbyteArray address = env->NewByteArray(OOB_ADDRESS_SIZE);
env->SetByteArrayRegion(address, 0, OOB_ADDRESS_SIZE,
reinterpret_cast<jbyte*>(oob_data.address));
jint le_role = (jint)oob_data.le_device_role;
jmethodID leBuilderConstructor =
env->GetMethodID(leBuilderClass, "<init>", "([B[BI)V");
jobject oobDataLeBuilder = env->NewObject(
leBuilderClass, leBuilderConstructor, confirmationHash, address, le_role);
jmethodID setRMethod =
env->GetMethodID(leBuilderClass, "setRandomizerHash",
"([B)Landroid/bluetooth/OobData$LeBuilder;");
jbyteArray randomizerHash = env->NewByteArray(OOB_R_SIZE);
env->SetByteArrayRegion(randomizerHash, 0, OOB_R_SIZE,
reinterpret_cast<jbyte*>(oob_data.r));
oobDataLeBuilder =
env->CallObjectMethod(oobDataLeBuilder, setRMethod, randomizerHash);
jmethodID setNameMethod =
env->GetMethodID(leBuilderClass, "setDeviceName",
"([B)Landroid/bluetooth/OobData$LeBuilder;");
int name_char_count = 0;
for (int i = 0; i < OOB_NAME_MAX_SIZE; i++) {
if (oob_data.device_name[i] == 0) {
name_char_count = i;
break;
}
}
jbyteArray deviceName = env->NewByteArray(name_char_count);
env->SetByteArrayRegion(deviceName, 0, name_char_count,
reinterpret_cast<jbyte*>(oob_data.device_name));
oobDataLeBuilder =
env->CallObjectMethod(oobDataLeBuilder, setNameMethod, deviceName);
jmethodID buildMethod = env->GetMethodID(leBuilderClass, "build",
"()Landroid/bluetooth/OobData;");
return env->CallObjectMethod(oobDataLeBuilder, buildMethod);
}
static void generate_local_oob_data_callback(tBT_TRANSPORT transport,
bt_oob_data_t oob_data) {
ALOGV("%s", __func__);
CallbackEnv sCallbackEnv(__func__);
if (!sCallbackEnv.valid()) return;
if (transport == TRANSPORT_BREDR) {
sCallbackEnv->CallVoidMethod(
sJniCallbacksObj, method_oobDataReceivedCallback, (jint)transport,
((oob_data.is_valid)
? createClassicOobDataObject(sCallbackEnv.get(), oob_data)
: nullptr));
} else if (transport == TRANSPORT_LE) {
sCallbackEnv->CallVoidMethod(
sJniCallbacksObj, method_oobDataReceivedCallback, (jint)transport,
((oob_data.is_valid)
? createLeOobDataObject(sCallbackEnv.get(), oob_data)
: nullptr));
} else {
// TRANSPORT_AUTO is a concept, however, the host stack doesn't fully
// implement it So passing it from the java layer is currently useless until
// the implementation and concept of TRANSPORT_AUTO is fleshed out.
ALOGE("TRANSPORT: %d not implemented", transport);
sCallbackEnv->CallVoidMethod(sJniCallbacksObj,
method_oobDataReceivedCallback,
(jint)transport, nullptr);
}
}
static void link_quality_report_callback(
uint64_t timestamp, int report_id, int rssi, int snr,
int retransmission_count, int packets_not_receive_count,
int negative_acknowledgement_count) {
CallbackEnv sCallbackEnv(__func__);
if (!sCallbackEnv.valid()) return;
ALOGV("%s: LinkQualityReportCallback: %d %d %d %d %d %d", __func__,
report_id, rssi, snr, retransmission_count, packets_not_receive_count,
negative_acknowledgement_count);
sCallbackEnv->CallVoidMethod(
sJniCallbacksObj, method_linkQualityReportCallback,
(jlong)timestamp, (jint)report_id, (jint)rssi, (jint)snr,
(jint)retransmission_count, (jint)packets_not_receive_count,
(jint)negative_acknowledgement_count);
}
static void callback_thread_event(bt_cb_thread_evt event) {
if (event == ASSOCIATE_JVM) {
JavaVMAttachArgs args;
char name[] = "BT Service Callback Thread";
args.version = JNI_VERSION_1_6;
args.name = name;
args.group = NULL;
vm->AttachCurrentThread(&callbackEnv, &args);
sHaveCallbackThread = true;
sCallbackThread = pthread_self();
ALOGV("Callback thread attached: %p", callbackEnv);
} else if (event == DISASSOCIATE_JVM) {
if (!isCallbackThread()) {
ALOGE("Callback: '%s' is not called on the correct thread", __func__);
return;
}
vm->DetachCurrentThread();
sHaveCallbackThread = false;
}
}
static void dut_mode_recv_callback(uint16_t opcode, uint8_t* buf, uint8_t len) {
}
static void le_test_mode_recv_callback(bt_status_t status,
uint16_t packet_count) {
ALOGV("%s: status:%d packet_count:%d ", __func__, status, packet_count);
}
static void energy_info_recv_callback(bt_activity_energy_info* p_energy_info,
bt_uid_traffic_t* uid_data) {
CallbackEnv sCallbackEnv(__func__);
if (!sCallbackEnv.valid()) return;
jsize len = 0;
for (bt_uid_traffic_t* data = uid_data; data->app_uid != -1; data++) {
len++;
}
ScopedLocalRef<jobjectArray> array(
sCallbackEnv.get(), sCallbackEnv->NewObjectArray(
len, android_bluetooth_UidTraffic.clazz, NULL));
jsize i = 0;
for (bt_uid_traffic_t* data = uid_data; data->app_uid != -1; data++) {
ScopedLocalRef<jobject> uidObj(
sCallbackEnv.get(),
sCallbackEnv->NewObject(android_bluetooth_UidTraffic.clazz,
android_bluetooth_UidTraffic.constructor,
(jint)data->app_uid, (jlong)data->rx_bytes,
(jlong)data->tx_bytes));
sCallbackEnv->SetObjectArrayElement(array.get(), i++, uidObj.get());
}
sCallbackEnv->CallVoidMethod(
sJniAdapterServiceObj, method_energyInfo, p_energy_info->status,
p_energy_info->ctrl_state, p_energy_info->tx_time, p_energy_info->rx_time,
p_energy_info->idle_time, p_energy_info->energy_used, array.get());
}
static bt_callbacks_t sBluetoothCallbacks = {
sizeof(sBluetoothCallbacks), adapter_state_change_callback,
adapter_properties_callback, remote_device_properties_callback,
device_found_callback, discovery_state_changed_callback,
pin_request_callback, ssp_request_callback,
bond_state_changed_callback, acl_state_changed_callback,
callback_thread_event, dut_mode_recv_callback,
le_test_mode_recv_callback, energy_info_recv_callback,
link_quality_report_callback, generate_local_oob_data_callback};
// The callback to call when the wake alarm fires.
static alarm_cb sAlarmCallback;
// The data to pass to the wake alarm callback.
static void* sAlarmCallbackData;
class JNIThreadAttacher {
public:
JNIThreadAttacher(JavaVM* vm) : vm_(vm), env_(nullptr) {
status_ = vm_->GetEnv((void**)&env_, JNI_VERSION_1_6);
if (status_ != JNI_OK && status_ != JNI_EDETACHED) {
ALOGE(
"JNIThreadAttacher: unable to get environment for JNI CALL, "
"status: %d",
status_);
env_ = nullptr;
return;
}
if (status_ == JNI_EDETACHED) {
char name[17] = {0};
if (prctl(PR_GET_NAME, (unsigned long)name) != 0) {
ALOGE(
"JNIThreadAttacher: unable to grab previous thread name, error: %s",
strerror(errno));
env_ = nullptr;
return;
}
JavaVMAttachArgs args = {
.version = JNI_VERSION_1_6, .name = name, .group = nullptr};
if (vm_->AttachCurrentThread(&env_, &args) != 0) {
ALOGE("JNIThreadAttacher: unable to attach thread to VM");
env_ = nullptr;
return;
}
}
}
~JNIThreadAttacher() {
if (status_ == JNI_EDETACHED) vm_->DetachCurrentThread();
}
JNIEnv* getEnv() { return env_; }
private:
JavaVM* vm_;
JNIEnv* env_;
jint status_;
};
static bool set_wake_alarm_callout(uint64_t delay_millis, bool should_wake,
alarm_cb cb, void* data) {
JNIThreadAttacher attacher(vm);
JNIEnv* env = attacher.getEnv();
if (env == nullptr) {
ALOGE("%s: Unable to get JNI Env", __func__);
return false;
}
sAlarmCallback = cb;
sAlarmCallbackData = data;
jboolean jshould_wake = should_wake ? JNI_TRUE : JNI_FALSE;
jboolean ret =
env->CallBooleanMethod(sJniAdapterServiceObj, method_setWakeAlarm,
(jlong)delay_millis, jshould_wake);
if (!ret) {
sAlarmCallback = NULL;
sAlarmCallbackData = NULL;
}
return (ret == JNI_TRUE);
}
static int acquire_wake_lock_callout(const char* lock_name) {
JNIThreadAttacher attacher(vm);
JNIEnv* env = attacher.getEnv();
if (env == nullptr) {
ALOGE("%s: Unable to get JNI Env", __func__);
return BT_STATUS_JNI_THREAD_ATTACH_ERROR;
}
jint ret = BT_STATUS_SUCCESS;
{
ScopedLocalRef<jstring> lock_name_jni(env, env->NewStringUTF(lock_name));
if (lock_name_jni.get()) {
bool acquired = env->CallBooleanMethod(
sJniAdapterServiceObj, method_acquireWakeLock, lock_name_jni.get());
if (!acquired) ret = BT_STATUS_WAKELOCK_ERROR;
} else {
ALOGE("%s unable to allocate string: %s", __func__, lock_name);
ret = BT_STATUS_NOMEM;
}
}
return ret;
}
static int release_wake_lock_callout(const char* lock_name) {
JNIThreadAttacher attacher(vm);
JNIEnv* env = attacher.getEnv();
if (env == nullptr) {
ALOGE("%s: Unable to get JNI Env", __func__);
return BT_STATUS_JNI_THREAD_ATTACH_ERROR;
}
jint ret = BT_STATUS_SUCCESS;
{
ScopedLocalRef<jstring> lock_name_jni(env, env->NewStringUTF(lock_name));
if (lock_name_jni.get()) {
bool released = env->CallBooleanMethod(
sJniAdapterServiceObj, method_releaseWakeLock, lock_name_jni.get());
if (!released) ret = BT_STATUS_WAKELOCK_ERROR;
} else {
ALOGE("%s unable to allocate string: %s", __func__, lock_name);
ret = BT_STATUS_NOMEM;
}
}
return ret;
}
// Called by Java code when alarm is fired. A wake lock is held by the caller
// over the duration of this callback.
static void alarmFiredNative(JNIEnv* env, jobject obj) {
if (sAlarmCallback) {
sAlarmCallback(sAlarmCallbackData);
} else {
ALOGE("%s() - Alarm fired with callback not set!", __func__);
}
}
static bt_os_callouts_t sBluetoothOsCallouts = {
sizeof(sBluetoothOsCallouts), set_wake_alarm_callout,
acquire_wake_lock_callout, release_wake_lock_callout,
};
int hal_util_load_bt_library(const bt_interface_t** interface) {
const char* sym = BLUETOOTH_INTERFACE_STRING;
bt_interface_t* itf = nullptr;
// The library name is not set by default, so the preset library name is used.
void* handle = dlopen("libbluetooth.so", RTLD_NOW);
if (!handle) {
const char* err_str = dlerror();
ALOGE("%s: failed to load Bluetooth library, error=%s", __func__,
err_str ? err_str : "error unknown");
goto error;
}
// Get the address of the bt_interface_t.
itf = (bt_interface_t*)dlsym(handle, sym);
if (!itf) {
ALOGE("%s: failed to load symbol from Bluetooth library %s", __func__, sym);
goto error;
}
// Success.
ALOGI("%s: loaded Bluetooth library successfully", __func__);
*interface = itf;
return 0;
error:
*interface = NULL;
if (handle) dlclose(handle);
return -EINVAL;
}
static void classInitNative(JNIEnv* env, jclass clazz) {
jclass jniUidTrafficClass = env->FindClass("android/bluetooth/UidTraffic");
android_bluetooth_UidTraffic.constructor =
env->GetMethodID(jniUidTrafficClass, "<init>", "(IJJ)V");
jclass jniCallbackClass =
env->FindClass("com/android/bluetooth/btservice/JniCallbacks");
sJniCallbacksField = env->GetFieldID(
clazz, "mJniCallbacks", "Lcom/android/bluetooth/btservice/JniCallbacks;");
method_oobDataReceivedCallback =
env->GetMethodID(jniCallbackClass, "oobDataReceivedCallback",
"(ILandroid/bluetooth/OobData;)V");
method_stateChangeCallback =
env->GetMethodID(jniCallbackClass, "stateChangeCallback", "(I)V");
method_adapterPropertyChangedCallback = env->GetMethodID(
jniCallbackClass, "adapterPropertyChangedCallback", "([I[[B)V");
method_discoveryStateChangeCallback = env->GetMethodID(
jniCallbackClass, "discoveryStateChangeCallback", "(I)V");
method_devicePropertyChangedCallback = env->GetMethodID(
jniCallbackClass, "devicePropertyChangedCallback", "([B[I[[B)V");
method_deviceFoundCallback =
env->GetMethodID(jniCallbackClass, "deviceFoundCallback", "([B)V");
method_pinRequestCallback =
env->GetMethodID(jniCallbackClass, "pinRequestCallback", "([B[BIZ)V");
method_sspRequestCallback =
env->GetMethodID(jniCallbackClass, "sspRequestCallback", "([B[BIII)V");
method_bondStateChangeCallback =
env->GetMethodID(jniCallbackClass, "bondStateChangeCallback", "(I[BI)V");
method_aclStateChangeCallback =
env->GetMethodID(jniCallbackClass, "aclStateChangeCallback", "(I[BII)V");
method_linkQualityReportCallback = env->GetMethodID(
jniCallbackClass, "linkQualityReportCallback", "(JIIIIII)V");
method_setWakeAlarm = env->GetMethodID(clazz, "setWakeAlarm", "(JZ)Z");
method_acquireWakeLock =
env->GetMethodID(clazz, "acquireWakeLock", "(Ljava/lang/String;)Z");
method_releaseWakeLock =
env->GetMethodID(clazz, "releaseWakeLock", "(Ljava/lang/String;)Z");
method_energyInfo = env->GetMethodID(
clazz, "energyInfoCallback", "(IIJJJJ[Landroid/bluetooth/UidTraffic;)V");
if (env->GetJavaVM(&vm) != JNI_OK) {
ALOGE("Could not get JavaVM");
}
if (hal_util_load_bt_library((bt_interface_t const**)&sBluetoothInterface)) {
ALOGE("No Bluetooth Library found");
}
}
static bool initNative(JNIEnv* env, jobject obj, jboolean isGuest,
jboolean isCommonCriteriaMode, int configCompareResult,
jobjectArray initFlags, jboolean isAtvDevice) {
ALOGV("%s", __func__);
android_bluetooth_UidTraffic.clazz =
(jclass)env->NewGlobalRef(env->FindClass("android/bluetooth/UidTraffic"));
sJniAdapterServiceObj = env->NewGlobalRef(obj);
sJniCallbacksObj =
env->NewGlobalRef(env->GetObjectField(obj, sJniCallbacksField));
if (!sBluetoothInterface) {
return JNI_FALSE;
}
int flagCount = env->GetArrayLength(initFlags);
jstring* flagObjs = new jstring[flagCount];
const char** flags = nullptr;
if (flagCount > 0) {
flags = new const char*[flagCount + 1];
flags[flagCount] = nullptr;
}
for (int i = 0; i < flagCount; i++) {
flagObjs[i] = (jstring)env->GetObjectArrayElement(initFlags, i);
flags[i] = env->GetStringUTFChars(flagObjs[i], NULL);
}
int ret = sBluetoothInterface->init(
&sBluetoothCallbacks, isGuest == JNI_TRUE ? 1 : 0,
isCommonCriteriaMode == JNI_TRUE ? 1 : 0, configCompareResult, flags,
isAtvDevice == JNI_TRUE ? 1 : 0);
for (int i = 0; i < flagCount; i++) {
env->ReleaseStringUTFChars(flagObjs[i], flags[i]);
}
delete[] flags;
delete[] flagObjs;
if (ret != BT_STATUS_SUCCESS) {
ALOGE("Error while setting the callbacks: %d\n", ret);
sBluetoothInterface = NULL;
return JNI_FALSE;
}
ret = sBluetoothInterface->set_os_callouts(&sBluetoothOsCallouts);
if (ret != BT_STATUS_SUCCESS) {
ALOGE("Error while setting Bluetooth callouts: %d\n", ret);
sBluetoothInterface->cleanup();
sBluetoothInterface = NULL;
return JNI_FALSE;
}
sBluetoothSocketInterface =
(btsock_interface_t*)sBluetoothInterface->get_profile_interface(
BT_PROFILE_SOCKETS_ID);
if (sBluetoothSocketInterface == NULL) {
ALOGE("Error getting socket interface");
}
return JNI_TRUE;
}
static bool cleanupNative(JNIEnv* env, jobject obj) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
sBluetoothInterface->cleanup();
ALOGI("%s: return from cleanup", __func__);
if (sJniCallbacksObj) {
env->DeleteGlobalRef(sJniCallbacksObj);
sJniCallbacksObj = NULL;
}
if (sJniAdapterServiceObj) {
env->DeleteGlobalRef(sJniAdapterServiceObj);
sJniAdapterServiceObj = NULL;
}
if (android_bluetooth_UidTraffic.clazz) {
env->DeleteGlobalRef(android_bluetooth_UidTraffic.clazz);
android_bluetooth_UidTraffic.clazz = NULL;
}
return JNI_TRUE;
}
static jboolean enableNative(JNIEnv* env, jobject obj) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
int ret = sBluetoothInterface->enable();
return (ret == BT_STATUS_SUCCESS || ret == BT_STATUS_DONE) ? JNI_TRUE
: JNI_FALSE;
}
static jboolean disableNative(JNIEnv* env, jobject obj) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
int ret = sBluetoothInterface->disable();
/* Retrun JNI_FALSE only when BTIF explicitly reports
BT_STATUS_FAIL. It is fine for the BT_STATUS_NOT_READY
case which indicates that stack had not been enabled.
*/
return (ret == BT_STATUS_FAIL) ? JNI_FALSE : JNI_TRUE;
}
static jboolean startDiscoveryNative(JNIEnv* env, jobject obj) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
int ret = sBluetoothInterface->start_discovery();
return (ret == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
}
static jboolean cancelDiscoveryNative(JNIEnv* env, jobject obj) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
int ret = sBluetoothInterface->cancel_discovery();
return (ret == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
}
static jboolean createBondNative(JNIEnv* env, jobject obj, jbyteArray address,
jint transport) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
jbyte* addr = env->GetByteArrayElements(address, NULL);
if (addr == NULL) {
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
int ret = sBluetoothInterface->create_bond((RawAddress*)addr, transport);
env->ReleaseByteArrayElements(address, addr, 0);
return (ret == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
}
static jbyteArray callByteArrayGetter(JNIEnv* env, jobject object,
const char* className,
const char* methodName) {
jclass myClass = env->FindClass(className);
jmethodID myMethod = env->GetMethodID(myClass, methodName, "()[B");
return (jbyteArray)env->CallObjectMethod(object, myMethod);
}
static jint callIntGetter(JNIEnv* env, jobject object, const char* className,
const char* methodName) {
jclass myClass = env->FindClass(className);
jmethodID myMethod = env->GetMethodID(myClass, methodName, "()I");
return env->CallIntMethod(object, myMethod);
}
static jboolean set_data(JNIEnv* env, bt_oob_data_t& oob_data, jobject oobData,
jint transport) {
// Need both arguments to be non NULL
if (oobData == NULL) {
ALOGE("%s: oobData is null! Nothing to do.", __func__);
return JNI_FALSE;
}
memset(&oob_data, 0, sizeof(oob_data));
jbyteArray address = callByteArrayGetter(
env, oobData, "android/bluetooth/OobData", "getDeviceAddressWithType");
// Check the data
int len = env->GetArrayLength(address);
if (len != OOB_ADDRESS_SIZE) {
ALOGE("%s: addressBytes must be 7 bytes in length (address plus type) 6+1!",
__func__);
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
// Convert the address from byte[]
jbyte* addressBytes = env->GetByteArrayElements(address, NULL);
if (addressBytes == NULL) {
ALOGE("%s: addressBytes cannot be null!", __func__);
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
memcpy(oob_data.address, addressBytes, len);
// Get the device name byte[] java object
jbyteArray deviceName = callByteArrayGetter(
env, oobData, "android/bluetooth/OobData", "getDeviceName");
// Optional
// Convert it to a jbyte* and copy it to the struct
jbyte* deviceNameBytes = NULL;
if (deviceName != NULL) {
deviceNameBytes = env->GetByteArrayElements(deviceName, NULL);
int len = env->GetArrayLength(deviceName);
if (len > OOB_NAME_MAX_SIZE) {
ALOGI(
"%s: wrong length of deviceName, should be empty or less than or "
"equal to %d bytes.",
__func__, OOB_NAME_MAX_SIZE);
jniThrowIOException(env, EINVAL);
env->ReleaseByteArrayElements(deviceName, deviceNameBytes, 0);
return JNI_FALSE;
}
memcpy(oob_data.device_name, deviceNameBytes, len);
env->ReleaseByteArrayElements(deviceName, deviceNameBytes, 0);
}
// Used by both classic and LE
jbyteArray confirmation = callByteArrayGetter(
env, oobData, "android/bluetooth/OobData", "getConfirmationHash");
if (confirmation == NULL) {
ALOGE("%s: confirmation cannot be null!", __func__);
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
// Confirmation is mandatory
jbyte* confirmationBytes = NULL;
confirmationBytes = env->GetByteArrayElements(confirmation, NULL);
len = env->GetArrayLength(confirmation);
if (confirmationBytes == NULL || len != OOB_C_SIZE) {
ALOGI(
"%s: wrong length of Confirmation, should be empty or %d "
"bytes.",
__func__, OOB_C_SIZE);
jniThrowIOException(env, EINVAL);
env->ReleaseByteArrayElements(confirmation, confirmationBytes, 0);
return JNI_FALSE;
}
memcpy(oob_data.c, confirmationBytes, len);
env->ReleaseByteArrayElements(confirmation, confirmationBytes, 0);
// Random is supposedly optional according to the specification
jbyteArray randomizer = callByteArrayGetter(
env, oobData, "android/bluetooth/OobData", "getRandomizerHash");
jbyte* randomizerBytes = NULL;
if (randomizer != NULL) {
randomizerBytes = env->GetByteArrayElements(randomizer, NULL);
int len = env->GetArrayLength(randomizer);
if (randomizerBytes == NULL || len != OOB_R_SIZE) {
ALOGI("%s: wrong length of Random, should be empty or %d bytes.",
__func__, OOB_R_SIZE);
jniThrowIOException(env, EINVAL);
env->ReleaseByteArrayElements(randomizer, randomizerBytes, 0);
return JNI_FALSE;
}
memcpy(oob_data.r, randomizerBytes, len);
env->ReleaseByteArrayElements(randomizer, randomizerBytes, 0);
}
// Transport specific data fetching/setting
if (transport == TRANSPORT_BREDR) {
// Classic
// Not optional
jbyteArray oobDataLength = callByteArrayGetter(
env, oobData, "android/bluetooth/OobData", "getClassicLength");
jbyte* oobDataLengthBytes = NULL;
if (oobDataLength == NULL ||
env->GetArrayLength(oobDataLength) != OOB_DATA_LEN_SIZE) {
ALOGI("%s: wrong length of oobDataLength, should be empty or %d bytes.",
__func__, OOB_DATA_LEN_SIZE);
jniThrowIOException(env, EINVAL);
env->ReleaseByteArrayElements(oobDataLength, oobDataLengthBytes, 0);
return JNI_FALSE;
}
oobDataLengthBytes = env->GetByteArrayElements(oobDataLength, NULL);
memcpy(oob_data.oob_data_length, oobDataLengthBytes, len);
env->ReleaseByteArrayElements(oobDataLength, oobDataLengthBytes, 0);
// Optional
jbyteArray classOfDevice = callByteArrayGetter(
env, oobData, "android/bluetooth/OobData", "getClassOfDevice");
jbyte* classOfDeviceBytes = NULL;
if (classOfDevice != NULL) {
classOfDeviceBytes = env->GetByteArrayElements(classOfDevice, NULL);
int len = env->GetArrayLength(classOfDevice);
if (len != OOB_COD_SIZE) {
ALOGI("%s: wrong length of classOfDevice, should be empty or %d bytes.",
__func__, OOB_COD_SIZE);
jniThrowIOException(env, EINVAL);
env->ReleaseByteArrayElements(classOfDevice, classOfDeviceBytes, 0);
return JNI_FALSE;
}
memcpy(oob_data.class_of_device, classOfDeviceBytes, len);
env->ReleaseByteArrayElements(classOfDevice, classOfDeviceBytes, 0);
}
} else if (transport == TRANSPORT_LE) {
// LE
jbyteArray temporaryKey = callByteArrayGetter(
env, oobData, "android/bluetooth/OobData", "getLeTemporaryKey");
jbyte* temporaryKeyBytes = NULL;
if (temporaryKey != NULL) {
temporaryKeyBytes = env->GetByteArrayElements(temporaryKey, NULL);
int len = env->GetArrayLength(temporaryKey);
if (len != OOB_TK_SIZE) {
ALOGI("%s: wrong length of temporaryKey, should be empty or %d bytes.",
__func__, OOB_TK_SIZE);
jniThrowIOException(env, EINVAL);
env->ReleaseByteArrayElements(temporaryKey, temporaryKeyBytes, 0);
return JNI_FALSE;
}
memcpy(oob_data.sm_tk, temporaryKeyBytes, len);
env->ReleaseByteArrayElements(temporaryKey, temporaryKeyBytes, 0);
}
jbyteArray leAppearance = callByteArrayGetter(
env, oobData, "android/bluetooth/OobData", "getLeAppearance");
jbyte* leAppearanceBytes = NULL;
if (leAppearance != NULL) {
leAppearanceBytes = env->GetByteArrayElements(leAppearance, NULL);
int len = env->GetArrayLength(leAppearance);
if (len != OOB_LE_APPEARANCE_SIZE) {
ALOGI("%s: wrong length of leAppearance, should be empty or %d bytes.",
__func__, OOB_LE_APPEARANCE_SIZE);
jniThrowIOException(env, EINVAL);
env->ReleaseByteArrayElements(leAppearance, leAppearanceBytes, 0);
return JNI_FALSE;
}
memcpy(oob_data.le_appearance, leAppearanceBytes, len);
env->ReleaseByteArrayElements(leAppearance, leAppearanceBytes, 0);
}
jint leRole = callIntGetter(env, oobData, "android/bluetooth/OobData",
"getLeDeviceRole");
oob_data.le_device_role = leRole;
jint leFlag =
callIntGetter(env, oobData, "android/bluetooth/OobData", "getLeFlags");
oob_data.le_flags = leFlag;
}
return JNI_TRUE;
}
static void generateLocalOobDataNative(JNIEnv* env, jobject obj,
jint transport) {
// No BT interface? Can't do anything.
if (!sBluetoothInterface) return;
if (sBluetoothInterface->generate_local_oob_data(transport) !=
BT_STATUS_SUCCESS) {
ALOGE("%s: Call to generate_local_oob_data failed!", __func__);
bt_oob_data_t oob_data;
oob_data.is_valid = false;
generate_local_oob_data_callback(transport, oob_data);
}
}
static jboolean createBondOutOfBandNative(JNIEnv* env, jobject obj,
jbyteArray address, jint transport,
jobject p192Data, jobject p256Data) {
// No BT interface? Can't do anything.
if (!sBluetoothInterface) return JNI_FALSE;
// No data? Can't do anything
if (p192Data == NULL && p256Data == NULL) {
ALOGE("%s: All OOB Data are null! Nothing to do.", __func__);
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
// This address is already reversed which is why its being passed...
// In the future we want to remove this and just reverse the address
// for the oobdata in the host stack.
if (address == NULL) {
ALOGE("%s: Address cannot be null! Nothing to do.", __func__);
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
// Check the data
int len = env->GetArrayLength(address);
if (len != 6) {
ALOGE("%s: addressBytes must be 6 bytes in length (address plus type) 6+1!",
__func__);
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
jbyte* addr = env->GetByteArrayElements(address, NULL);
if (addr == NULL) {
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
// Convert P192 data from Java POJO to C Struct
bt_oob_data_t p192_data;
if (p192Data != NULL) {
if (set_data(env, p192_data, p192Data, transport) == JNI_FALSE) {
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
}
// Convert P256 data from Java POJO to C Struct
bt_oob_data_t p256_data;
if (p256Data != NULL) {
if (set_data(env, p256_data, p256Data, transport) == JNI_FALSE) {
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
}
return ((sBluetoothInterface->create_bond_out_of_band(
(RawAddress*)addr, transport, &p192_data, &p256_data)) ==
BT_STATUS_SUCCESS)
? JNI_TRUE
: JNI_FALSE;
}
static jboolean removeBondNative(JNIEnv* env, jobject obj, jbyteArray address) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
jbyte* addr = env->GetByteArrayElements(address, NULL);
if (addr == NULL) {
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
int ret = sBluetoothInterface->remove_bond((RawAddress*)addr);
env->ReleaseByteArrayElements(address, addr, 0);
return (ret == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
}
static jboolean cancelBondNative(JNIEnv* env, jobject obj, jbyteArray address) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
jbyte* addr = env->GetByteArrayElements(address, NULL);
if (addr == NULL) {
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
int ret = sBluetoothInterface->cancel_bond((RawAddress*)addr);
env->ReleaseByteArrayElements(address, addr, 0);
return (ret == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
}
static int getConnectionStateNative(JNIEnv* env, jobject obj,
jbyteArray address) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
jbyte* addr = env->GetByteArrayElements(address, NULL);
if (addr == NULL) {
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
int ret = sBluetoothInterface->get_connection_state((RawAddress*)addr);
env->ReleaseByteArrayElements(address, addr, 0);
return ret;
}
static jboolean pinReplyNative(JNIEnv* env, jobject obj, jbyteArray address,
jboolean accept, jint len, jbyteArray pinArray) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
jbyte* addr = env->GetByteArrayElements(address, NULL);
if (addr == NULL) {
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
jbyte* pinPtr = NULL;
if (accept) {
pinPtr = env->GetByteArrayElements(pinArray, NULL);
if (pinPtr == NULL) {
jniThrowIOException(env, EINVAL);
env->ReleaseByteArrayElements(address, addr, 0);
return JNI_FALSE;
}
}
int ret = sBluetoothInterface->pin_reply((RawAddress*)addr, accept, len,
(bt_pin_code_t*)pinPtr);
env->ReleaseByteArrayElements(address, addr, 0);
env->ReleaseByteArrayElements(pinArray, pinPtr, 0);
return (ret == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
}
static jboolean sspReplyNative(JNIEnv* env, jobject obj, jbyteArray address,
jint type, jboolean accept, jint passkey) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
jbyte* addr = env->GetByteArrayElements(address, NULL);
if (addr == NULL) {
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
int ret = sBluetoothInterface->ssp_reply(
(RawAddress*)addr, (bt_ssp_variant_t)type, accept, passkey);
env->ReleaseByteArrayElements(address, addr, 0);
return (ret == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
}
static jboolean setAdapterPropertyNative(JNIEnv* env, jobject obj, jint type,
jbyteArray value) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
jbyte* val = env->GetByteArrayElements(value, NULL);
bt_property_t prop;
prop.type = (bt_property_type_t)type;
prop.len = env->GetArrayLength(value);
prop.val = val;
int ret = sBluetoothInterface->set_adapter_property(&prop);
env->ReleaseByteArrayElements(value, val, 0);
return (ret == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
}
static jboolean getAdapterPropertiesNative(JNIEnv* env, jobject obj) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
int ret = sBluetoothInterface->get_adapter_properties();
return (ret == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
}
static jboolean getAdapterPropertyNative(JNIEnv* env, jobject obj, jint type) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
int ret = sBluetoothInterface->get_adapter_property((bt_property_type_t)type);
return (ret == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
}
static jboolean getDevicePropertyNative(JNIEnv* env, jobject obj,
jbyteArray address, jint type) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
jbyte* addr = env->GetByteArrayElements(address, NULL);
if (addr == NULL) {
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
int ret = sBluetoothInterface->get_remote_device_property(
(RawAddress*)addr, (bt_property_type_t)type);
env->ReleaseByteArrayElements(address, addr, 0);
return (ret == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
}
static jboolean setDevicePropertyNative(JNIEnv* env, jobject obj,
jbyteArray address, jint type,
jbyteArray value) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
jbyte* val = env->GetByteArrayElements(value, NULL);
if (val == NULL) {
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
jbyte* addr = env->GetByteArrayElements(address, NULL);
if (addr == NULL) {
env->ReleaseByteArrayElements(value, val, 0);
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
bt_property_t prop;
prop.type = (bt_property_type_t)type;
prop.len = env->GetArrayLength(value);
prop.val = val;
int ret =
sBluetoothInterface->set_remote_device_property((RawAddress*)addr, &prop);
env->ReleaseByteArrayElements(value, val, 0);
env->ReleaseByteArrayElements(address, addr, 0);
return (ret == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
}
static jboolean getRemoteServicesNative(JNIEnv* env, jobject obj,
jbyteArray address) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
jbyte* addr = addr = env->GetByteArrayElements(address, NULL);
if (addr == NULL) {
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
int ret = sBluetoothInterface->get_remote_services((RawAddress*)addr);
env->ReleaseByteArrayElements(address, addr, 0);
return (ret == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
}
static int readEnergyInfo() {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
int ret = sBluetoothInterface->read_energy_info();
return (ret == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
}
static void dumpNative(JNIEnv* env, jobject obj, jobject fdObj,
jobjectArray argArray) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return;
int fd = jniGetFDFromFileDescriptor(env, fdObj);
if (fd < 0) return;
int numArgs = env->GetArrayLength(argArray);
jstring* argObjs = new jstring[numArgs];
const char** args = nullptr;
if (numArgs > 0) {
args = new const char*[numArgs + 1];
args[numArgs] = nullptr;
}
for (int i = 0; i < numArgs; i++) {
argObjs[i] = (jstring)env->GetObjectArrayElement(argArray, i);
args[i] = env->GetStringUTFChars(argObjs[i], NULL);
}
sBluetoothInterface->dump(fd, args);
for (int i = 0; i < numArgs; i++) {
env->ReleaseStringUTFChars(argObjs[i], args[i]);
}
delete[] args;
delete[] argObjs;
}
static jbyteArray dumpMetricsNative(JNIEnv* env, jobject obj) {
ALOGI("%s", __func__);
if (!sBluetoothInterface) return env->NewByteArray(0);
std::string output;
sBluetoothInterface->dumpMetrics(&output);
jsize output_size = output.size() * sizeof(char);
jbyteArray output_bytes = env->NewByteArray(output_size);
env->SetByteArrayRegion(output_bytes, 0, output_size,
(const jbyte*)output.data());
return output_bytes;
}
static jboolean factoryResetNative(JNIEnv* env, jobject obj) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
int ret = sBluetoothInterface->config_clear();
return (ret == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
}
static void interopDatabaseClearNative(JNIEnv* env, jobject obj) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return;
sBluetoothInterface->interop_database_clear();
}
static void interopDatabaseAddNative(JNIEnv* env, jobject obj, int feature,
jbyteArray address, int length) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return;
jbyte* addr = env->GetByteArrayElements(address, NULL);
if (addr == NULL) {
jniThrowIOException(env, EINVAL);
return;
}
sBluetoothInterface->interop_database_add(feature, (RawAddress*)addr, length);
env->ReleaseByteArrayElements(address, addr, 0);
}
static jbyteArray obfuscateAddressNative(JNIEnv* env, jobject obj,
jbyteArray address) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return env->NewByteArray(0);
jbyte* addr = env->GetByteArrayElements(address, nullptr);
if (addr == nullptr) {
jniThrowIOException(env, EINVAL);
return env->NewByteArray(0);
}
RawAddress addr_obj = {};
addr_obj.FromOctets((uint8_t*)addr);
std::string output = sBluetoothInterface->obfuscate_address(addr_obj);
jsize output_size = output.size() * sizeof(char);
jbyteArray output_bytes = env->NewByteArray(output_size);
env->SetByteArrayRegion(output_bytes, 0, output_size,
(const jbyte*)output.data());
return output_bytes;
}
static jboolean setBufferLengthMillisNative(JNIEnv* env, jobject obj,
jint codec, jint size) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return JNI_FALSE;
int ret = sBluetoothInterface->set_dynamic_audio_buffer_size(codec, size);
return (ret == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
}
static jint connectSocketNative(JNIEnv* env, jobject obj, jbyteArray address,
jint type, jbyteArray uuid, jint port,
jint flag, jint callingUid) {
int socket_fd = INVALID_FD;
jbyte* addr = nullptr;
jbyte* uuidBytes = nullptr;
Uuid btUuid;
if (!sBluetoothSocketInterface) {
goto done;
}
addr = env->GetByteArrayElements(address, nullptr);
uuidBytes = env->GetByteArrayElements(uuid, nullptr);
if (addr == nullptr || uuidBytes == nullptr) {
jniThrowIOException(env, EINVAL);
goto done;
}
btUuid = Uuid::From128BitBE((uint8_t*)uuidBytes);
if (sBluetoothSocketInterface->connect((RawAddress*)addr, (btsock_type_t)type,
&btUuid, port, &socket_fd, flag,
callingUid) != BT_STATUS_SUCCESS) {
socket_fd = INVALID_FD;
}
done:
if (addr) env->ReleaseByteArrayElements(address, addr, 0);
if (uuidBytes) env->ReleaseByteArrayElements(uuid, uuidBytes, 0);
return socket_fd;
}
static jint createSocketChannelNative(JNIEnv* env, jobject obj, jint type,
jstring serviceName, jbyteArray uuid,
jint port, jint flag, jint callingUid) {
int socket_fd = INVALID_FD;
jbyte* uuidBytes = nullptr;
Uuid btUuid;
const char* nativeServiceName = nullptr;
if (!sBluetoothSocketInterface) {
goto done;
}
uuidBytes = env->GetByteArrayElements(uuid, nullptr);
if (serviceName != nullptr) {
nativeServiceName = env->GetStringUTFChars(serviceName, nullptr);
}
if (uuidBytes == nullptr) {
jniThrowIOException(env, EINVAL);
goto done;
}
btUuid = Uuid::From128BitBE((uint8_t*)uuidBytes);
if (sBluetoothSocketInterface->listen((btsock_type_t)type, nativeServiceName,
&btUuid, port, &socket_fd, flag,
callingUid) != BT_STATUS_SUCCESS) {
socket_fd = INVALID_FD;
}
done:
if (uuidBytes) env->ReleaseByteArrayElements(uuid, uuidBytes, 0);
if (nativeServiceName)
env->ReleaseStringUTFChars(serviceName, nativeServiceName);
return socket_fd;
}
static void requestMaximumTxDataLengthNative(JNIEnv* env, jobject obj,
jbyteArray address) {
if (!sBluetoothSocketInterface) {
return;
}
jbyte* addr = env->GetByteArrayElements(address, nullptr);
if (addr == nullptr) {
jniThrowIOException(env, EINVAL);
return;
}
RawAddress addressVar = *(RawAddress*)addr;
sBluetoothSocketInterface->request_max_tx_data_length(addressVar);
env->ReleaseByteArrayElements(address, addr, 1);
}
static int getMetricIdNative(JNIEnv* env, jobject obj, jbyteArray address) {
ALOGV("%s", __func__);
if (!sBluetoothInterface) return 0; // 0 is invalid id
jbyte* addr = env->GetByteArrayElements(address, nullptr);
if (addr == nullptr) {
jniThrowIOException(env, EINVAL);
return 0;
}
RawAddress addr_obj = {};
addr_obj.FromOctets((uint8_t*)addr);
return sBluetoothInterface->get_metric_id(addr_obj);
}
static JNINativeMethod sMethods[] = {
/* name, signature, funcPtr */
{"classInitNative", "()V", (void*)classInitNative},
{"initNative", "(ZZI[Ljava/lang/String;Z)Z", (void*)initNative},
{"cleanupNative", "()V", (void*)cleanupNative},
{"enableNative", "()Z", (void*)enableNative},
{"disableNative", "()Z", (void*)disableNative},
{"setAdapterPropertyNative", "(I[B)Z", (void*)setAdapterPropertyNative},
{"getAdapterPropertiesNative", "()Z", (void*)getAdapterPropertiesNative},
{"getAdapterPropertyNative", "(I)Z", (void*)getAdapterPropertyNative},
{"getDevicePropertyNative", "([BI)Z", (void*)getDevicePropertyNative},
{"setDevicePropertyNative", "([BI[B)Z", (void*)setDevicePropertyNative},
{"startDiscoveryNative", "()Z", (void*)startDiscoveryNative},
{"cancelDiscoveryNative", "()Z", (void*)cancelDiscoveryNative},
{"createBondNative", "([BI)Z", (void*)createBondNative},
{"createBondOutOfBandNative",
"([BILandroid/bluetooth/OobData;Landroid/bluetooth/OobData;)Z",
(void*)createBondOutOfBandNative},
{"removeBondNative", "([B)Z", (void*)removeBondNative},
{"cancelBondNative", "([B)Z", (void*)cancelBondNative},
{"generateLocalOobDataNative", "(I)V", (void*)generateLocalOobDataNative},
{"getConnectionStateNative", "([B)I", (void*)getConnectionStateNative},
{"pinReplyNative", "([BZI[B)Z", (void*)pinReplyNative},
{"sspReplyNative", "([BIZI)Z", (void*)sspReplyNative},
{"getRemoteServicesNative", "([B)Z", (void*)getRemoteServicesNative},
{"alarmFiredNative", "()V", (void*)alarmFiredNative},
{"readEnergyInfo", "()I", (void*)readEnergyInfo},
{"dumpNative", "(Ljava/io/FileDescriptor;[Ljava/lang/String;)V",
(void*)dumpNative},
{"dumpMetricsNative", "()[B", (void*)dumpMetricsNative},
{"factoryResetNative", "()Z", (void*)factoryResetNative},
{"interopDatabaseClearNative", "()V", (void*)interopDatabaseClearNative},
{"interopDatabaseAddNative", "(I[BI)V", (void*)interopDatabaseAddNative},
{"obfuscateAddressNative", "([B)[B", (void*)obfuscateAddressNative},
{"setBufferLengthMillisNative", "(II)Z",
(void*)setBufferLengthMillisNative},
{"getMetricIdNative", "([B)I", (void*)getMetricIdNative},
{"connectSocketNative", "([BI[BIII)I", (void*)connectSocketNative},
{"createSocketChannelNative", "(ILjava/lang/String;[BIII)I",
(void*)createSocketChannelNative},
{"requestMaximumTxDataLengthNative", "([B)V",
(void*)requestMaximumTxDataLengthNative}};
int register_com_android_bluetooth_btservice_AdapterService(JNIEnv* env) {
return jniRegisterNativeMethods(
env, "com/android/bluetooth/btservice/AdapterService", sMethods,
NELEM(sMethods));
}
} /* namespace android */
/*
* JNI Initialization
*/
jint JNI_OnLoad(JavaVM* jvm, void* reserved) {
JNIEnv* e;
int status;
ALOGV("Bluetooth Adapter Service : loading JNI\n");
// Check JNI version
if (jvm->GetEnv((void**)&e, JNI_VERSION_1_6)) {
ALOGE("JNI version mismatch error");
return JNI_ERR;
}
status = android::register_com_android_bluetooth_btservice_AdapterService(e);
if (status < 0) {
ALOGE("jni adapter service registration failure, status: %d", status);
return JNI_ERR;
}
status =
android::register_com_android_bluetooth_btservice_activity_attribution(e);
if (status < 0) {
ALOGE("jni activity attribution registration failure: %d", status);
return JNI_ERR;
}
status =
android::register_com_android_bluetooth_btservice_BluetoothKeystore(e);
if (status < 0) {
ALOGE("jni BluetoothKeyStore registration failure: %d", status);
return JNI_ERR;
}
status = android::register_com_android_bluetooth_hfp(e);
if (status < 0) {
ALOGE("jni hfp registration failure, status: %d", status);
return JNI_ERR;
}
status = android::register_com_android_bluetooth_hfpclient(e);
if (status < 0) {
ALOGE("jni hfp client registration failure, status: %d", status);
return JNI_ERR;
}
status = android::register_com_android_bluetooth_a2dp(e);
if (status < 0) {
ALOGE("jni a2dp source registration failure: %d", status);
return JNI_ERR;
}
status = android::register_com_android_bluetooth_a2dp_sink(e);
if (status < 0) {
ALOGE("jni a2dp sink registration failure: %d", status);
return JNI_ERR;
}
status = android::register_com_android_bluetooth_avrcp_target(e);
if (status < 0) {
ALOGE("jni new avrcp target registration failure: %d", status);
}
status = android::register_com_android_bluetooth_avrcp_controller(e);
if (status < 0) {
ALOGE("jni avrcp controller registration failure: %d", status);
return JNI_ERR;
}
status = android::register_com_android_bluetooth_hid_host(e);
if (status < 0) {
ALOGE("jni hid registration failure: %d", status);
return JNI_ERR;
}
status = android::register_com_android_bluetooth_hid_device(e);
if (status < 0) {
ALOGE("jni hidd registration failure: %d", status);
return JNI_ERR;
}
status = android::register_com_android_bluetooth_pan(e);
if (status < 0) {
ALOGE("jni pan registration failure: %d", status);
return JNI_ERR;
}
status = android::register_com_android_bluetooth_gatt(e);
if (status < 0) {
ALOGE("jni gatt registration failure: %d", status);
return JNI_ERR;
}
status = android::register_com_android_bluetooth_sdp(e);
if (status < 0) {
ALOGE("jni sdp registration failure: %d", status);
return JNI_ERR;
}
status = android::register_com_android_bluetooth_hearing_aid(e);
if (status < 0) {
ALOGE("jni hearing aid registration failure: %d", status);
return JNI_ERR;
}
status = android::register_com_android_bluetooth_le_audio(e);
if (status < 0) {
ALOGE("jni le_audio registration failure: %d", status);
return JNI_ERR;
}
return JNI_VERSION_1_6;
}