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/*
* Copyright 2020 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 "BluetoothActivityAttributionJni"
#include <string.h>
#include <shared_mutex>
#include "base/logging.h"
#include "com_android_bluetooth.h"
#include "hardware/bt_activity_attribution.h"
using bluetooth::activity_attribution::ActivityAttributionCallbacks;
using bluetooth::activity_attribution::ActivityAttributionInterface;
namespace android {
static jmethodID method_onWakeup;
static jmethodID method_onActivityLogsReady;
static ActivityAttributionInterface* sActivityAttributionInterface = nullptr;
static std::shared_timed_mutex interface_mutex;
static jobject mCallbacksObj = nullptr;
static std::shared_timed_mutex callbacks_mutex;
class ActivityAttributionCallbacksImpl : public ActivityAttributionCallbacks {
public:
~ActivityAttributionCallbacksImpl() = default;
void OnWakeup(const Activity activity, const RawAddress& bd_addr) override {
LOG(INFO) << __func__;
std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
CallbackEnv sCallbackEnv(__func__);
if (!sCallbackEnv.valid() || mCallbacksObj == nullptr) return;
ScopedLocalRef<jbyteArray> addr(
sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(RawAddress)));
if (!addr.get()) {
LOG(ERROR)
<< "Failed to allocate jbyteArray for bd_addr of wakeup callback";
return;
}
sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(RawAddress),
(jbyte*)&bd_addr);
sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onWakeup, (jint)activity,
addr.get());
}
void OnActivityLogsReady(
const std::vector<BtaaAggregationEntry> logs) override {
LOG(INFO) << __func__;
std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
CallbackEnv sCallbackEnv(__func__);
if (!sCallbackEnv.valid() || mCallbacksObj == nullptr) return;
jsize logs_size = logs.size() * sizeof(BtaaAggregationEntry);
ScopedLocalRef<jbyteArray> addr(sCallbackEnv.get(),
sCallbackEnv->NewByteArray(logs_size));
if (!addr.get()) {
LOG(ERROR) << "Failed to allocate jbyteArray for logs from activity "
"logging callback";
return;
}
sCallbackEnv->SetByteArrayRegion(addr.get(), 0, logs_size,
(jbyte*)logs.data());
sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onActivityLogsReady,
addr.get());
}
};
static ActivityAttributionCallbacksImpl sActivityAttributionCallbacks;
static void classInitNative(JNIEnv* env, jclass clazz) {
method_onWakeup = env->GetMethodID(clazz, "onWakeup", "(I[B)V");
method_onActivityLogsReady =
env->GetMethodID(clazz, "onActivityLogsReady", "([B)V");
LOG(INFO) << __func__ << ": succeeds";
}
static void initNative(JNIEnv* env, jobject object) {
std::unique_lock<std::shared_timed_mutex> interface_lock(interface_mutex);
std::unique_lock<std::shared_timed_mutex> callbacks_lock(callbacks_mutex);
const bt_interface_t* btInf = getBluetoothInterface();
if (btInf == nullptr) {
LOG(ERROR) << "Bluetooth module is not loaded";
return;
}
if (sActivityAttributionInterface != nullptr) {
LOG(INFO)
<< "Cleaning up ActivityAttribution Interface before initializing...";
sActivityAttributionInterface->Cleanup();
sActivityAttributionInterface = nullptr;
}
if (mCallbacksObj != nullptr) {
LOG(INFO) << "Cleaning up ActivityAttribution callback object";
env->DeleteGlobalRef(mCallbacksObj);
mCallbacksObj = nullptr;
}
if ((mCallbacksObj = env->NewGlobalRef(object)) == nullptr) {
LOG(ERROR)
<< "Failed to allocate Global Ref for ActivityAttribution Callbacks";
return;
}
sActivityAttributionInterface =
(ActivityAttributionInterface*)btInf->get_profile_interface(
BT_ACTIVITY_ATTRIBUTION_ID);
if (sActivityAttributionInterface == nullptr) {
LOG(ERROR) << "Failed to get ActivityAttribution Interface";
return;
}
sActivityAttributionInterface->RegisterCallbacks(
&sActivityAttributionCallbacks);
}
static void cleanupNative(JNIEnv* env, jobject object) {
std::unique_lock<std::shared_timed_mutex> interface_lock(interface_mutex);
std::unique_lock<std::shared_timed_mutex> callbacks_lock(callbacks_mutex);
const bt_interface_t* btInf = getBluetoothInterface();
if (btInf == nullptr) {
LOG(ERROR) << "Bluetooth module is not loaded";
return;
}
if (sActivityAttributionInterface != nullptr) {
sActivityAttributionInterface->Cleanup();
sActivityAttributionInterface = nullptr;
}
if (mCallbacksObj != nullptr) {
env->DeleteGlobalRef(mCallbacksObj);
mCallbacksObj = nullptr;
}
}
static void notifyActivityAttributionInfoNative(JNIEnv* env, jobject object,
jint uid, jstring packageName,
jstring deviceAddress) {
const bt_interface_t* btInf = getBluetoothInterface();
if (btInf == nullptr) {
LOG(ERROR) << "Bluetooth module is not loaded";
return;
}
sActivityAttributionInterface =
(ActivityAttributionInterface*)btInf->get_profile_interface(
BT_ACTIVITY_ATTRIBUTION_ID);
if (sActivityAttributionInterface == nullptr) {
LOG(ERROR) << "Failed to get ActivityAttribution Interface";
return;
}
if (packageName == nullptr || deviceAddress == nullptr) {
LOG(ERROR) << "Failed to get package name or device address";
return;
}
const char* nativeName = env->GetStringUTFChars(packageName, nullptr);
const char* nativeAddress = env->GetStringUTFChars(deviceAddress, nullptr);
sActivityAttributionInterface->NotifyActivityAttributionInfo(uid, nativeName,
nativeAddress);
env->ReleaseStringUTFChars(packageName, nativeName);
env->ReleaseStringUTFChars(deviceAddress, nativeAddress);
}
static JNINativeMethod sMethods[] = {
{"classInitNative", "()V", (void*)classInitNative},
{"initNative", "()V", (void*)initNative},
{"cleanupNative", "()V", (void*)cleanupNative},
{"notifyActivityAttributionInfoNative",
"(ILjava/lang/String;Ljava/lang/String;)V",
(void*)notifyActivityAttributionInfoNative},
};
int register_com_android_bluetooth_btservice_activity_attribution(JNIEnv* env) {
return jniRegisterNativeMethods(
env,
"com/android/bluetooth/btservice/activityattribution/"
"ActivityAttributionNativeInterface",
sMethods, NELEM(sMethods));
}
} // namespace android
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