xref: /packages/apps/Bluetooth/jni/com_android_bluetooth_btservice_AdapterService.cpp

/*
 * 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 "android_runtime/AndroidRuntime.h"
#include "android_runtime/Log.h"
#include "com_android_bluetooth.h"
#include "cutils/properties.h"
#include "hardware/bt_sock.h"
#include "nativehelper/ScopedLocalFrame.h"
#include "utils/Log.h"
#include "utils/misc.h"

#include <pthread.h>
#include <string.h>

#include <fcntl.h>
#include <sys/prctl.h>
#include <sys/stat.h>

namespace android {
// OOB_LE_BD_ADDR_SIZE is 6 bytes addres + 1 byte address type
#define OOB_LE_BD_ADDR_SIZE 7
#define OOB_TK_SIZE 16
#define OOB_LE_SC_C_SIZE 16
#define OOB_LE_SC_R_SIZE 16

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_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 JNIEnv* callbackEnv = NULL;

static jobject sJniAdapterServiceObj;
static jobject sJniCallbacksObj;
static jfieldID sJniCallbacksField;

const bt_interface_t* getBluetoothInterface() { return sBluetoothInterface; }

JNIEnv* getCallbackEnv() { return callbackEnv; }

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,
                                              bt_bdaddr_t* 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;
  }

  ScopedLocalFrame local_frame(sCallbackEnv.get());

  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(bt_bdaddr_t)));
  if (!addr.get()) {
    ALOGE("Error while allocation byte array in %s", __func__);
    return;
  }

  sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(bt_bdaddr_t),
                                   (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,
                                    (bt_bdaddr_t*)properties[addr_index].val,
                                    num_properties, properties);

  sCallbackEnv->CallVoidMethod(sJniCallbacksObj, method_deviceFoundCallback,
                               addr.get());
}

static void bond_state_changed_callback(bt_status_t status,
                                        bt_bdaddr_t* 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(bt_bdaddr_t)));
  if (!addr.get()) {
    ALOGE("Address allocation failed in %s", __func__);
    return;
  }
  sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(bt_bdaddr_t),
                                   (jbyte*)bd_addr);

  sCallbackEnv->CallVoidMethod(sJniCallbacksObj, method_bondStateChangeCallback,
                               (jint)status, addr.get(), (jint)state);
}

static void acl_state_changed_callback(bt_status_t status, bt_bdaddr_t* bd_addr,
                                       bt_acl_state_t state) {
  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(bt_bdaddr_t)));
  if (!addr.get()) {
    ALOGE("Address allocation failed in %s", __func__);
    return;
  }
  sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(bt_bdaddr_t),
                                   (jbyte*)bd_addr);

  sCallbackEnv->CallVoidMethod(sJniCallbacksObj, method_aclStateChangeCallback,
                               (jint)status, addr.get(), (jint)state);
}

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(bt_bdaddr_t* 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(bt_bdaddr_t)));
  if (!addr.get()) {
    ALOGE("Error while allocating in: %s", __func__);
    return;
  }

  sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(bt_bdaddr_t),
                                   (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(bt_bdaddr_t* 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(bt_bdaddr_t)));
  if (!addr.get()) {
    ALOGE("Error while allocating in: %s", __func__);
    return;
  }

  sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(bt_bdaddr_t),
                                   (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 void callback_thread_event(bt_cb_thread_evt event) {
  JavaVM* vm = AndroidRuntime::getJavaVM();
  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);
    ALOGV("Callback thread attached: %p", callbackEnv);
  } else if (event == DISASSOCIATE_JVM) {
    if (callbackEnv != AndroidRuntime::getJNIEnv()) {
      ALOGE("Callback: '%s' is not called on the correct thread", __func__);
      return;
    }
    vm->DetachCurrentThread();
  }
}

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};

// 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() : vm_(nullptr), env_(nullptr) {
    vm_ = AndroidRuntime::getJavaVM();
    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;
  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;
  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;
  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,
};

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_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[BI)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");

  char value[PROPERTY_VALUE_MAX];
  property_get("bluetooth.mock_stack", value, "");

  const char* id =
      (strcmp(value, "1") ? BT_STACK_MODULE_ID : BT_STACK_TEST_MODULE_ID);

  hw_module_t* module;
  int err = hw_get_module(id, (hw_module_t const**)&module);

  if (err == 0) {
    hw_device_t* abstraction;
    err = module->methods->open(module, id, &abstraction);
    if (err == 0) {
      bluetooth_module_t* btStack = (bluetooth_module_t*)abstraction;
      sBluetoothInterface = btStack->get_bluetooth_interface();
    } else {
      ALOGE("Error while opening Bluetooth library");
    }
  } else {
    ALOGE("No Bluetooth Library found");
  }
}

static bool initNative(JNIEnv* env, jobject obj) {
  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 ret = sBluetoothInterface->init(&sBluetoothCallbacks);
  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__);

  env->DeleteGlobalRef(sJniCallbacksObj);
  env->DeleteGlobalRef(sJniAdapterServiceObj);
  env->DeleteGlobalRef(android_bluetooth_UidTraffic.clazz);
  android_bluetooth_UidTraffic.clazz = NULL;
  return JNI_TRUE;
}

static jboolean enableNative(JNIEnv* env, jobject obj, jboolean isGuest) {
  ALOGV("%s", __func__);

  if (!sBluetoothInterface) return JNI_FALSE;
  int ret = sBluetoothInterface->enable(isGuest == JNI_TRUE ? 1 : 0);
  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((bt_bdaddr_t*)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 jboolean createBondOutOfBandNative(JNIEnv* env, jobject obj,
                                          jbyteArray address, jint transport,
                                          jobject oobData) {
  bt_out_of_band_data_t oob_data;

  memset(&oob_data, 0, sizeof(oob_data));

  if (!sBluetoothInterface) return JNI_FALSE;

  jbyte* addr = env->GetByteArrayElements(address, NULL);
  if (addr == NULL) {
    jniThrowIOException(env, EINVAL);
    return JNI_FALSE;
  }

  jbyte* leBtDeviceAddressBytes = NULL;
  jbyte* smTKBytes = NULL;
  jbyte* leScCBytes = NULL;
  jbyte* leScRBytes = NULL;
  jbyteArray leBtDeviceAddress = NULL;
  jbyteArray smTK = NULL;
  jbyteArray leScC = NULL;
  jbyteArray leScR = NULL;
  int status = BT_STATUS_FAIL;

  leBtDeviceAddress = callByteArrayGetter(
      env, oobData, "android/bluetooth/OobData", "getLeBluetoothDeviceAddress");
  if (leBtDeviceAddress != NULL) {
    leBtDeviceAddressBytes = env->GetByteArrayElements(leBtDeviceAddress, NULL);
    int len = env->GetArrayLength(leBtDeviceAddress);
    if (len != OOB_LE_BD_ADDR_SIZE) {
      ALOGI(
          "%s: wrong length of leBtDeviceAddress, should be empty or %d bytes.",
          __func__, OOB_LE_BD_ADDR_SIZE);
      jniThrowIOException(env, EINVAL);
      goto done;
    }
    memcpy(oob_data.le_bt_dev_addr, leBtDeviceAddressBytes, len);
  }

  smTK = callByteArrayGetter(env, oobData, "android/bluetooth/OobData",
                             "getSecurityManagerTk");
  if (smTK != NULL) {
    smTKBytes = env->GetByteArrayElements(smTK, NULL);
    int len = env->GetArrayLength(smTK);
    if (len != OOB_TK_SIZE) {
      ALOGI("%s: wrong length of smTK, should be empty or %d bytes.", __func__,
            OOB_TK_SIZE);
      jniThrowIOException(env, EINVAL);
      goto done;
    }
    memcpy(oob_data.sm_tk, smTKBytes, len);
  }

  leScC = callByteArrayGetter(env, oobData, "android/bluetooth/OobData",
                              "getLeSecureConnectionsConfirmation");
  if (leScC != NULL) {
    leScCBytes = env->GetByteArrayElements(leScC, NULL);
    int len = env->GetArrayLength(leScC);
    if (len != OOB_LE_SC_C_SIZE) {
      ALOGI(
          "%s: wrong length of LE SC Confirmation, should be empty or %d "
          "bytes.",
          __func__, OOB_LE_SC_C_SIZE);
      jniThrowIOException(env, EINVAL);
      goto done;
    }
    memcpy(oob_data.le_sc_c, leScCBytes, len);
  }

  leScR = callByteArrayGetter(env, oobData, "android/bluetooth/OobData",
                              "getLeSecureConnectionsRandom");
  if (leScR != NULL) {
    leScRBytes = env->GetByteArrayElements(leScR, NULL);
    int len = env->GetArrayLength(leScR);
    if (len != OOB_LE_SC_R_SIZE) {
      ALOGI("%s: wrong length of LE SC Random, should be empty or %d bytes.",
            __func__, OOB_LE_SC_R_SIZE);
      jniThrowIOException(env, EINVAL);
      goto done;
    }
    memcpy(oob_data.le_sc_r, leScRBytes, len);
  }

  status = sBluetoothInterface->create_bond_out_of_band((bt_bdaddr_t*)addr,
                                                        transport, &oob_data);

done:
  env->ReleaseByteArrayElements(address, addr, 0);

  if (leBtDeviceAddress != NULL)
    env->ReleaseByteArrayElements(leBtDeviceAddress, leBtDeviceAddressBytes, 0);

  if (smTK != NULL) env->ReleaseByteArrayElements(smTK, smTKBytes, 0);

  if (leScC != NULL) env->ReleaseByteArrayElements(leScC, leScCBytes, 0);

  if (leScR != NULL) env->ReleaseByteArrayElements(leScR, leScRBytes, 0);

  return (status == 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((bt_bdaddr_t*)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((bt_bdaddr_t*)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((bt_bdaddr_t*)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((bt_bdaddr_t*)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(
      (bt_bdaddr_t*)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(
      (bt_bdaddr_t*)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((bt_bdaddr_t*)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((bt_bdaddr_t*)addr);
  env->ReleaseByteArrayElements(address, addr, 0);
  return (ret == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
}

static int connectSocketNative(JNIEnv* env, jobject object, jbyteArray address,
                               jint type, jbyteArray uuidObj, jint channel,
                               jint flag, jint callingUid) {
  if (!sBluetoothSocketInterface) return -1;

  jbyte* addr = env->GetByteArrayElements(address, NULL);
  if (!addr) {
    ALOGE("failed to get Bluetooth device address");
    return -1;
  }

  jbyte* uuid = NULL;
  if (uuidObj != NULL) {
    uuid = env->GetByteArrayElements(uuidObj, NULL);
    if (!uuid) {
      ALOGE("failed to get uuid");
      env->ReleaseByteArrayElements(address, addr, 0);
      return -1;
    }
  }

  int socket_fd = -1;
  bt_status_t status = sBluetoothSocketInterface->connect(
      (bt_bdaddr_t*)addr, (btsock_type_t)type, (const uint8_t*)uuid, channel,
      &socket_fd, flag, callingUid);
  if (status != BT_STATUS_SUCCESS) {
    ALOGE("Socket connection failed: %d", status);
    socket_fd = -1;
  } else if (socket_fd < 0) {
    ALOGE("Fail to create file descriptor on socket fd");
  }

  env->ReleaseByteArrayElements(address, addr, 0);
  env->ReleaseByteArrayElements(uuidObj, uuid, 0);
  return socket_fd;
}

static int createSocketChannelNative(JNIEnv* env, jobject object, jint type,
                                     jstring name_str, jbyteArray uuidObj,
                                     jint channel, jint flag, jint callingUid) {
  if (!sBluetoothSocketInterface) return -1;

  ALOGV("%s: SOCK FLAG = %x", __func__, flag);

  const char* service_name = NULL;
  if (name_str != NULL) {
    service_name = env->GetStringUTFChars(name_str, NULL);
  }

  jbyte* uuid = NULL;
  if (uuidObj != NULL) {
    uuid = env->GetByteArrayElements(uuidObj, NULL);
    if (!uuid) {
      ALOGE("failed to get uuid");
      if (service_name) env->ReleaseStringUTFChars(name_str, service_name);
      return -1;
    }
  }

  int socket_fd = -1;
  bt_status_t status = sBluetoothSocketInterface->listen(
      (btsock_type_t)type, service_name, (const uint8_t*)uuid, channel,
      &socket_fd, flag, callingUid);
  if (status != BT_STATUS_SUCCESS) {
    ALOGE("Socket listen failed: %d", status);
    socket_fd = -1;
  } else if (socket_fd < 0) {
    ALOGE("Fail to creat file descriptor on socket fd");
  }

  if (service_name) env->ReleaseStringUTFChars(name_str, service_name);
  if (uuid) env->ReleaseByteArrayElements(uuidObj, uuid, 0);
  return socket_fd;
}

static jboolean configHciSnoopLogNative(JNIEnv* env, jobject obj,
                                        jboolean enable) {
  ALOGV("%s", __func__);

  if (!sBluetoothInterface) return JNI_FALSE;

  int ret = sBluetoothInterface->config_hci_snoop_log(enable);

  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];

  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 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, (bt_bdaddr_t*)addr,
                                            length);
  env->ReleaseByteArrayElements(address, addr, 0);
}

static JNINativeMethod sMethods[] = {
    /* name, signature, funcPtr */
    {"classInitNative", "()V", (void*)classInitNative},
    {"initNative", "()Z", (void*)initNative},
    {"cleanupNative", "()V", (void*)cleanupNative},
    {"enableNative", "(Z)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;)Z",
     (void*)createBondOutOfBandNative},
    {"removeBondNative", "([B)Z", (void*)removeBondNative},
    {"cancelBondNative", "([B)Z", (void*)cancelBondNative},
    {"getConnectionStateNative", "([B)I", (void*)getConnectionStateNative},
    {"pinReplyNative", "([BZI[B)Z", (void*)pinReplyNative},
    {"sspReplyNative", "([BIZI)Z", (void*)sspReplyNative},
    {"getRemoteServicesNative", "([B)Z", (void*)getRemoteServicesNative},
    {"connectSocketNative", "([BI[BIII)I", (void*)connectSocketNative},
    {"createSocketChannelNative", "(ILjava/lang/String;[BIII)I",
     (void*)createSocketChannelNative},
    {"configHciSnoopLogNative", "(Z)Z", (void*)configHciSnoopLogNative},
    {"alarmFiredNative", "()V", (void*)alarmFiredNative},
    {"readEnergyInfo", "()I", (void*)readEnergyInfo},
    {"dumpNative", "(Ljava/io/FileDescriptor;[Ljava/lang/String;)V",
     (void*)dumpNative},
    {"factoryResetNative", "()Z", (void*)factoryResetNative},
    {"interopDatabaseClearNative", "()V", (void*)interopDatabaseClearNative},
    {"interopDatabaseAddNative", "(I[BI)V", (void*)interopDatabaseAddNative}};

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_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(e);
  if (status < 0) {
    ALOGE("jni avrcp target registration failure: %d", status);
    return JNI_ERR;
  }

  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(e);
  if (status < 0) {
    ALOGE("jni hid registration failure: %d", status);
    return JNI_ERR;
  }

  status = android::register_com_android_bluetooth_hidd(e);
  if (status < 0) {
    ALOGE("jni hidd registration failure: %d", status);
    return JNI_ERR;
  }

  status = android::register_com_android_bluetooth_hdp(e);
  if (status < 0) {
    ALOGE("jni hdp 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;
  }

  return JNI_VERSION_1_6;
}