Initial contribution from Sony Corporation.

  Add DRM Framework to support DRM content playback
  together with StageFright.

  - DRM Framework code is added
     - include/drm
     - drm
  - api/current.xml is updated to include DRM Framework Java APIs
  - cmds/servicemanager/service_manager.c is modified
    to add drmManager and drmIOService.

Change-Id: I6d7bc9c7067362b500e530988a9ce241761866fb

19 files changed, 3287 insertions, 0 deletions

diff --git a/drm/libdrmframework/Android.mk b/drm/libdrmframework/Android.mk
new file mode 100644
index 0000000..c25d79b
--- /dev/null
+++ b/drm/libdrmframework/Android.mk
@@ -0,0 +1,42 @@
+#
+# Copyright (C) 2010 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.
+#
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+    DrmManagerClientImpl.cpp \
+    DrmManagerClient.cpp
+
+LOCAL_MODULE:= libdrmframework
+
+LOCAL_SHARED_LIBRARIES := \
+    libutils \
+    libbinder \
+    libdl
+
+LOCAL_STATIC_LIBRARIES := \
+    libdrmframeworkcommon
+
+LOCAL_C_INCLUDES += \
+    $(TOP)/frameworks/base/drm/libdrmframework/include \
+    $(TOP)/frameworks/base/include
+
+LOCAL_PRELINK_MODULE := false
+
+include $(BUILD_SHARED_LIBRARY)
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/drm/libdrmframework/DrmManagerClient.cpp b/drm/libdrmframework/DrmManagerClient.cpp
new file mode 100644
index 0000000..06c7c50
--- /dev/null
+++ b/drm/libdrmframework/DrmManagerClient.cpp
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2010 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_NDEBUG 0
+#define LOG_TAG "DrmManagerClient(Native)"
+#include <utils/Log.h>
+
+#include <utils/String8.h>
+#include <binder/IServiceManager.h>
+#include <drm/DrmManagerClient.h>
+
+#include "DrmManagerClientImpl.h"
+
+using namespace android;
+
+DrmManagerClient::DrmManagerClient() {
+    int uniqueId = 0;
+    mDrmManagerClientImpl = NULL;
+
+    mDrmManagerClientImpl = DrmManagerClientImpl::create(&uniqueId);
+    mUniqueId = uniqueId;
+
+    loadPlugIns();
+}
+
+DrmManagerClient::~DrmManagerClient() {
+    unloadPlugIns();
+    DrmManagerClientImpl::remove(mUniqueId);
+
+    delete mDrmManagerClientImpl; mDrmManagerClientImpl = NULL;
+}
+
+status_t DrmManagerClient::loadPlugIns() {
+    return mDrmManagerClientImpl->loadPlugIns(mUniqueId);
+}
+
+status_t DrmManagerClient::setOnInfoListener(
+                    const sp<DrmManagerClient::OnInfoListener>& infoListener) {
+    return mDrmManagerClientImpl->setOnInfoListener(mUniqueId, infoListener);
+}
+
+status_t DrmManagerClient::unloadPlugIns() {
+    return mDrmManagerClientImpl->unloadPlugIns(mUniqueId);
+}
+
+DrmConstraints* DrmManagerClient::getConstraints(const String8* path, const int action) {
+    return mDrmManagerClientImpl->getConstraints(mUniqueId, path, action);
+}
+
+bool DrmManagerClient::canHandle(const String8& path, const String8& mimeType) {
+    return mDrmManagerClientImpl->canHandle(mUniqueId, path, mimeType);
+}
+
+DrmInfoStatus* DrmManagerClient::processDrmInfo(const DrmInfo* drmInfo) {
+    return mDrmManagerClientImpl->processDrmInfo(mUniqueId, drmInfo);
+}
+
+DrmInfo* DrmManagerClient::acquireDrmInfo(const DrmInfoRequest* drmInfoRequest) {
+    return mDrmManagerClientImpl->acquireDrmInfo(mUniqueId, drmInfoRequest);
+}
+
+void DrmManagerClient::saveRights(
+        const DrmRights& drmRights, const String8& rightsPath, const String8& contentPath) {
+    return mDrmManagerClientImpl->saveRights(mUniqueId, drmRights, rightsPath, contentPath);
+}
+
+String8 DrmManagerClient::getOriginalMimeType(const String8& path) {
+    return mDrmManagerClientImpl->getOriginalMimeType(mUniqueId, path);
+}
+
+int DrmManagerClient::getDrmObjectType(const String8& path, const String8& mimeType) {
+    return mDrmManagerClientImpl->getDrmObjectType( mUniqueId, path, mimeType);
+}
+
+int DrmManagerClient::checkRightsStatus(const String8& path, int action) {
+    return mDrmManagerClientImpl->checkRightsStatus(mUniqueId, path, action);
+}
+
+void DrmManagerClient::consumeRights(DecryptHandle* decryptHandle, int action, bool reserve) {
+    mDrmManagerClientImpl->consumeRights(mUniqueId, decryptHandle, action, reserve);
+}
+
+void DrmManagerClient::setPlaybackStatus(
+            DecryptHandle* decryptHandle, int playbackStatus, int position) {
+    mDrmManagerClientImpl->setPlaybackStatus(mUniqueId, decryptHandle, playbackStatus, position);
+}
+
+bool DrmManagerClient::validateAction(
+            const String8& path, int action, const ActionDescription& description) {
+    return mDrmManagerClientImpl->validateAction(mUniqueId, path, action, description);
+}
+
+void DrmManagerClient::removeRights(const String8& path) {
+    mDrmManagerClientImpl->removeRights(mUniqueId, path);
+}
+
+void DrmManagerClient::removeAllRights() {
+    mDrmManagerClientImpl->removeAllRights(mUniqueId);
+}
+
+int DrmManagerClient::openConvertSession(const String8& mimeType) {
+    return mDrmManagerClientImpl->openConvertSession(mUniqueId, mimeType);
+}
+
+DrmConvertedStatus* DrmManagerClient::convertData(int convertId, const DrmBuffer* inputData) {
+    return mDrmManagerClientImpl->convertData(mUniqueId, convertId, inputData);
+}
+
+DrmConvertedStatus* DrmManagerClient::closeConvertSession(int convertId) {
+    return mDrmManagerClientImpl->closeConvertSession(mUniqueId, convertId);
+}
+
+status_t DrmManagerClient::getAllSupportInfo(int* length, DrmSupportInfo** drmSupportInfoArray) {
+    return mDrmManagerClientImpl->getAllSupportInfo(mUniqueId, length, drmSupportInfoArray);
+}
+
+DecryptHandle* DrmManagerClient::openDecryptSession(int fd, int offset, int length) {
+    return mDrmManagerClientImpl->openDecryptSession(mUniqueId, fd, offset, length);
+}
+
+void DrmManagerClient::closeDecryptSession(DecryptHandle* decryptHandle) {
+    mDrmManagerClientImpl->closeDecryptSession(mUniqueId, decryptHandle);
+}
+
+void DrmManagerClient::initializeDecryptUnit(
+            DecryptHandle* decryptHandle, int decryptUnitId, const DrmBuffer* headerInfo) {
+    mDrmManagerClientImpl->initializeDecryptUnit(
+        mUniqueId, decryptHandle, decryptUnitId, headerInfo);
+}
+
+status_t DrmManagerClient::decrypt(
+    DecryptHandle* decryptHandle, int decryptUnitId,
+    const DrmBuffer* encBuffer, DrmBuffer** decBuffer) {
+    return mDrmManagerClientImpl->decrypt(
+            mUniqueId, decryptHandle, decryptUnitId, encBuffer, decBuffer);
+}
+
+void DrmManagerClient::finalizeDecryptUnit(DecryptHandle* decryptHandle, int decryptUnitId) {
+    mDrmManagerClientImpl->finalizeDecryptUnit(mUniqueId, decryptHandle, decryptUnitId);
+}
+
+ssize_t DrmManagerClient::pread(
+            DecryptHandle* decryptHandle, void* buffer, ssize_t numBytes, off_t offset) {
+    return mDrmManagerClientImpl->pread(mUniqueId, decryptHandle, buffer, numBytes, offset);
+}
+
diff --git a/drm/libdrmframework/DrmManagerClientImpl.cpp b/drm/libdrmframework/DrmManagerClientImpl.cpp
new file mode 100644
index 0000000..7274b49
--- /dev/null
+++ b/drm/libdrmframework/DrmManagerClientImpl.cpp
@@ -0,0 +1,319 @@
+/*
+ * Copyright (C) 2010 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_NDEBUG 0
+#define LOG_TAG "DrmManagerClientImpl(Native)"
+#include <utils/Log.h>
+
+#include <utils/String8.h>
+#include <utils/Vector.h>
+#include <binder/IServiceManager.h>
+
+#include "DrmManagerClientImpl.h"
+
+using namespace android;
+
+#define INVALID_VALUE -1
+
+Mutex DrmManagerClientImpl::mMutex;
+Vector<int> DrmManagerClientImpl::mUniqueIdVector;
+sp<IDrmManagerService> DrmManagerClientImpl::mDrmManagerService;
+const String8 DrmManagerClientImpl::EMPTY_STRING("");
+
+DrmManagerClientImpl* DrmManagerClientImpl::create(int* pUniqueId) {
+    if (0 == *pUniqueId) {
+        int uniqueId = 0;
+        bool foundUniqueId = false;
+        srand(time(NULL));
+
+        while (!foundUniqueId) {
+            const int size = mUniqueIdVector.size();
+            uniqueId = rand() % 100;
+
+            int index = 0;
+            for (; index < size; ++index) {
+                if (mUniqueIdVector.itemAt(index) == uniqueId) {
+                    foundUniqueId = false;
+                    break;
+                }
+            }
+            if (index == size) {
+                foundUniqueId = true;
+            }
+        }
+        *pUniqueId = uniqueId;
+    }
+    mUniqueIdVector.push(*pUniqueId);
+    return new DrmManagerClientImpl();
+}
+
+void DrmManagerClientImpl::remove(int uniqueId) {
+    for (int i = 0; i < mUniqueIdVector.size(); i++) {
+        if (uniqueId == mUniqueIdVector.itemAt(i)) {
+            mUniqueIdVector.removeAt(i);
+            break;
+        }
+    }
+}
+
+DrmManagerClientImpl::DrmManagerClientImpl() {
+
+}
+
+DrmManagerClientImpl::~DrmManagerClientImpl() {
+
+}
+
+const sp<IDrmManagerService>& DrmManagerClientImpl::getDrmManagerService() {
+    mMutex.lock();
+    if (NULL == mDrmManagerService.get()) {
+        sp<IServiceManager> sm = defaultServiceManager();
+        sp<IBinder> binder;
+        do {
+            binder = sm->getService(String16("drm.drmManager"));
+            if (binder != 0) {
+                break;
+            }
+            LOGW("DrmManagerService not published, waiting...");
+            struct timespec reqt;
+            reqt.tv_sec  = 0;
+            reqt.tv_nsec = 500000000; //0.5 sec
+            nanosleep(&reqt, NULL);
+        } while (true);
+
+        mDrmManagerService = interface_cast<IDrmManagerService>(binder);
+    }
+    mMutex.unlock();
+    return mDrmManagerService;
+}
+
+status_t DrmManagerClientImpl::loadPlugIns(int uniqueId) {
+    return getDrmManagerService()->loadPlugIns(uniqueId);
+}
+
+status_t DrmManagerClientImpl::loadPlugIns(int uniqueId, const String8& plugInDirPath) {
+    status_t status = DRM_ERROR_UNKNOWN;
+    if (EMPTY_STRING != plugInDirPath) {
+        status = getDrmManagerService()->loadPlugIns(uniqueId, plugInDirPath);
+    }
+    return status;
+}
+
+status_t DrmManagerClientImpl::setOnInfoListener(
+            int uniqueId, const sp<DrmManagerClient::OnInfoListener>& infoListener) {
+    Mutex::Autolock _l(mLock);
+    mOnInfoListener = infoListener;
+    return getDrmManagerService()->setDrmServiceListener(uniqueId, this);
+}
+
+status_t DrmManagerClientImpl::unloadPlugIns(int uniqueId) {
+    return getDrmManagerService()->unloadPlugIns(uniqueId);
+}
+
+status_t DrmManagerClientImpl::installDrmEngine(int uniqueId, const String8& drmEngineFile) {
+    status_t status = DRM_ERROR_UNKNOWN;
+    if (EMPTY_STRING != drmEngineFile) {
+        status = getDrmManagerService()->installDrmEngine(uniqueId, drmEngineFile);
+    }
+    return status;
+}
+
+DrmConstraints* DrmManagerClientImpl::getConstraints(
+        int uniqueId, const String8* path, const int action) {
+    DrmConstraints *drmConstraints = NULL;
+    if ((NULL != path) && (EMPTY_STRING != *path)) {
+        drmConstraints = getDrmManagerService()->getConstraints(uniqueId, path, action);
+    }
+    return drmConstraints;
+}
+
+bool DrmManagerClientImpl::canHandle(int uniqueId, const String8& path, const String8& mimeType) {
+    bool retCode = false;
+    if ((EMPTY_STRING != path) || (EMPTY_STRING != mimeType)) {
+        retCode = getDrmManagerService()->canHandle(uniqueId, path, mimeType);
+    }
+    return retCode;
+}
+
+DrmInfoStatus* DrmManagerClientImpl::processDrmInfo(int uniqueId, const DrmInfo* drmInfo) {
+    DrmInfoStatus *drmInfoStatus = NULL;
+    if (NULL != drmInfo) {
+        drmInfoStatus = getDrmManagerService()->processDrmInfo(uniqueId, drmInfo);
+    }
+    return drmInfoStatus;
+}
+
+DrmInfo* DrmManagerClientImpl::acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest) {
+    DrmInfo* drmInfo = NULL;
+    if (NULL != drmInfoRequest) {
+        drmInfo = getDrmManagerService()->acquireDrmInfo(uniqueId, drmInfoRequest);
+    }
+    return drmInfo;
+}
+
+void DrmManagerClientImpl::saveRights(int uniqueId, const DrmRights& drmRights,
+            const String8& rightsPath, const String8& contentPath) {
+    if (EMPTY_STRING != contentPath) {
+        getDrmManagerService()->saveRights(uniqueId, drmRights, rightsPath, contentPath);
+    }
+}
+
+String8 DrmManagerClientImpl::getOriginalMimeType(int uniqueId, const String8& path) {
+    String8 mimeType = EMPTY_STRING;
+    if (EMPTY_STRING != path) {
+        mimeType = getDrmManagerService()->getOriginalMimeType(uniqueId, path);
+    }
+    return mimeType;
+}
+
+int DrmManagerClientImpl::getDrmObjectType(
+            int uniqueId, const String8& path, const String8& mimeType) {
+    int drmOjectType = DrmObjectType::UNKNOWN;
+    if ((EMPTY_STRING != path) || (EMPTY_STRING != mimeType)) {
+         drmOjectType = getDrmManagerService()->getDrmObjectType(uniqueId, path, mimeType);
+    }
+    return drmOjectType;
+}
+
+int DrmManagerClientImpl::checkRightsStatus(
+            int uniqueId, const String8& path, int action) {
+    int rightsStatus = RightsStatus::RIGHTS_INVALID;
+    if (EMPTY_STRING != path) {
+        rightsStatus = getDrmManagerService()->checkRightsStatus(uniqueId, path, action);
+    }
+    return rightsStatus;
+}
+
+void DrmManagerClientImpl::consumeRights(
+            int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve) {
+    if (NULL != decryptHandle) {
+        getDrmManagerService()->consumeRights(uniqueId, decryptHandle, action, reserve);
+    }
+}
+
+void DrmManagerClientImpl::setPlaybackStatus(
+            int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int position) {
+    if (NULL != decryptHandle) {
+        getDrmManagerService()->setPlaybackStatus(
+                uniqueId, decryptHandle, playbackStatus, position);
+    }
+}
+
+bool DrmManagerClientImpl::validateAction(
+            int uniqueId, const String8& path, int action, const ActionDescription& description) {
+    bool retCode = false;
+    if (EMPTY_STRING != path) {
+        retCode = getDrmManagerService()->validateAction(uniqueId, path, action, description);
+    }
+    return retCode;
+}
+
+void DrmManagerClientImpl::removeRights(int uniqueId, const String8& path) {
+    if (EMPTY_STRING != path) {
+        getDrmManagerService()->removeRights(uniqueId, path);
+    }
+}
+
+void DrmManagerClientImpl::removeAllRights(int uniqueId) {
+    getDrmManagerService()->removeAllRights(uniqueId);
+}
+
+int DrmManagerClientImpl::openConvertSession(int uniqueId, const String8& mimeType) {
+    int retCode = INVALID_VALUE;
+    if (EMPTY_STRING != mimeType) {
+        retCode = getDrmManagerService()->openConvertSession(uniqueId, mimeType);
+    }
+    return retCode;
+}
+
+DrmConvertedStatus* DrmManagerClientImpl::convertData(
+            int uniqueId, int convertId, const DrmBuffer* inputData) {
+    DrmConvertedStatus* drmConvertedStatus = NULL;
+    if (NULL != inputData) {
+         drmConvertedStatus = getDrmManagerService()->convertData(uniqueId, convertId, inputData);
+    }
+    return drmConvertedStatus;
+}
+
+DrmConvertedStatus* DrmManagerClientImpl::closeConvertSession(int uniqueId, int convertId) {
+    return getDrmManagerService()->closeConvertSession(uniqueId, convertId);
+}
+
+status_t DrmManagerClientImpl::getAllSupportInfo(
+            int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray) {
+    status_t status = DRM_ERROR_UNKNOWN;
+    if ((NULL != drmSupportInfoArray) && (NULL != length)) {
+        status = getDrmManagerService()->getAllSupportInfo(uniqueId, length, drmSupportInfoArray);
+    }
+    return status;
+}
+
+DecryptHandle* DrmManagerClientImpl::openDecryptSession(
+            int uniqueId, int fd, int offset, int length) {
+    LOGV("Entering DrmManagerClientImpl::openDecryptSession");
+    return getDrmManagerService()->openDecryptSession(uniqueId, fd, offset, length);
+}
+
+void DrmManagerClientImpl::closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle) {
+    if (NULL != decryptHandle) {
+        getDrmManagerService()->closeDecryptSession( uniqueId, decryptHandle);
+    }
+}
+
+void DrmManagerClientImpl::initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* headerInfo) {
+    if ((NULL != decryptHandle) && (NULL != headerInfo)) {
+        getDrmManagerService()->initializeDecryptUnit(
+                uniqueId, decryptHandle, decryptUnitId, headerInfo);
+    }
+}
+
+status_t DrmManagerClientImpl::decrypt(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* encBuffer, DrmBuffer** decBuffer) {
+    status_t status = DRM_ERROR_UNKNOWN;
+    if ((NULL != decryptHandle) && (NULL != encBuffer)
+        && (NULL != decBuffer) && (NULL != *decBuffer)) {
+        status = getDrmManagerService()->decrypt(
+                uniqueId, decryptHandle, decryptUnitId, encBuffer, decBuffer);
+    }
+    return status;
+}
+
+void DrmManagerClientImpl::finalizeDecryptUnit(
+            int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId) {
+    if (NULL != decryptHandle) {
+        getDrmManagerService()->finalizeDecryptUnit(uniqueId, decryptHandle, decryptUnitId);
+    }
+}
+
+ssize_t DrmManagerClientImpl::pread(int uniqueId, DecryptHandle* decryptHandle,
+            void* buffer, ssize_t numBytes, off_t offset) {
+    ssize_t retCode = INVALID_VALUE;
+    if ((NULL != decryptHandle) && (NULL != buffer) && (0 < numBytes)) {
+        retCode = getDrmManagerService()->pread(uniqueId, decryptHandle, buffer, numBytes, offset);
+    }
+    return retCode;
+}
+
+status_t DrmManagerClientImpl::notify(const DrmInfoEvent& event) {
+    if (NULL != mOnInfoListener.get()) {
+        Mutex::Autolock _l(mLock);
+        sp<DrmManagerClient::OnInfoListener> listener = mOnInfoListener;
+        listener->onInfo(event);
+    }
+    return DRM_NO_ERROR;
+}
+
diff --git a/drm/libdrmframework/include/DrmIOService.h b/drm/libdrmframework/include/DrmIOService.h
new file mode 100644
index 0000000..244124e
--- /dev/null
+++ b/drm/libdrmframework/include/DrmIOService.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef __DRM_IO_SERVICE_H__
+#define __DRM_IO_SERVICE_H__
+
+#include "IDrmIOService.h"
+
+namespace android {
+
+/**
+ * This is the implementation class for DRM IO service.
+ *
+ * The instance of this class is created while starting the DRM IO service.
+ *
+ */
+class DrmIOService : public BnDrmIOService {
+public:
+    static void instantiate();
+
+private:
+    DrmIOService();
+    virtual ~DrmIOService();
+
+public:
+    void writeToFile(const String8& filePath, const String8& dataBuffer);
+    String8 readFromFile(const String8& filePath);
+};
+
+};
+
+#endif /* __DRM_IO_SERVICE_H__ */
+
diff --git a/drm/libdrmframework/include/DrmManager.h b/drm/libdrmframework/include/DrmManager.h
new file mode 100644
index 0000000..2ba9e99
--- /dev/null
+++ b/drm/libdrmframework/include/DrmManager.h
@@ -0,0 +1,153 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef __DRM_MANAGER_H__
+#define __DRM_MANAGER_H__
+
+#include <utils/Errors.h>
+#include <utils/threads.h>
+#include <drm/drm_framework_common.h>
+#include "IDrmEngine.h"
+#include "PlugInManager.h"
+#include "IDrmServiceListener.h"
+
+namespace android {
+
+class IDrmManager;
+class DrmRegistrationInfo;
+class DrmUnregistrationInfo;
+class DrmRightsAcquisitionInfo;
+class DrmContentIds;
+class DrmConstraints;
+class DrmRights;
+class DrmInfo;
+class DrmInfoStatus;
+class DrmConvertedStatus;
+class DrmInfoRequest;
+class DrmSupportInfo;
+class ActionDescription;
+
+/**
+ * This is implementation class for DRM Manager. This class delegates the
+ * functionality to corresponding DRM Engine.
+ *
+ * The DrmManagerService class creates an instance of this class.
+ *
+ */
+class DrmManager : public IDrmEngine::OnInfoListener {
+public:
+    DrmManager();
+    virtual ~DrmManager();
+
+public:
+
+    status_t loadPlugIns(int uniqueId);
+
+    status_t loadPlugIns(int uniqueId, const String8& plugInDirPath);
+
+    status_t setDrmServiceListener(
+            int uniqueId, const sp<IDrmServiceListener>& drmServiceListener);
+
+    status_t unloadPlugIns(int uniqueId);
+
+    status_t installDrmEngine(int uniqueId, const String8& drmEngineFile);
+
+    DrmConstraints* getConstraints(int uniqueId, const String8* path, const int action);
+
+    bool canHandle(int uniqueId, const String8& path, const String8& mimeType);
+
+    DrmInfoStatus* processDrmInfo(int uniqueId, const DrmInfo* drmInfo);
+
+    DrmInfo* acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest);
+
+    void saveRights(int uniqueId, const DrmRights& drmRights,
+            const String8& rightsPath, const String8& contentPath);
+
+    String8 getOriginalMimeType(int uniqueId, const String8& path);
+
+    int getDrmObjectType(int uniqueId, const String8& path, const String8& mimeType);
+
+    int checkRightsStatus(int uniqueId, const String8& path, int action);
+
+    void consumeRights(int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve);
+
+    void setPlaybackStatus(
+            int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int position);
+
+    bool validateAction(
+            int uniqueId, const String8& path, int action, const ActionDescription& description);
+
+    void removeRights(int uniqueId, const String8& path);
+
+    void removeAllRights(int uniqueId);
+
+    int openConvertSession(int uniqueId, const String8& mimeType);
+
+    DrmConvertedStatus* convertData(int uniqueId, int convertId, const DrmBuffer* inputData);
+
+    DrmConvertedStatus* closeConvertSession(int uniqueId, int convertId);
+
+    status_t getAllSupportInfo(int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray);
+
+    DecryptHandle* openDecryptSession(int uniqueId, int fd, int offset, int length);
+
+    void closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle);
+
+    void initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* headerInfo);
+
+    status_t decrypt(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* encBuffer,DrmBuffer** decBuffer);
+
+    void finalizeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId);
+
+    ssize_t pread(int uniqueId, DecryptHandle* decryptHandle,
+            void* buffer, ssize_t numBytes, off_t offset);
+
+    void onInfo(const DrmInfoEvent& event);
+
+private:
+    String8 getSupportedPlugInId(int uniqueId, const String8& path, const String8& mimeType);
+
+    String8 getSupportedPlugInId(const String8& mimeType);
+
+    String8 getSupportedPlugInIdFromPath(int uniqueId, const String8& path);
+
+    void populate(int uniqueId);
+
+    bool canHandle(int uniqueId, const String8& path);
+
+    void initializePlugIns(int uniqueId);
+
+private:
+    static const String8 EMPTY_STRING;
+
+    int mDecryptSessionId;
+    int mConvertId;
+    Mutex mLock;
+    Mutex mDecryptLock;
+    Mutex mConvertLock;
+    TPlugInManager<IDrmEngine> mPlugInManager;
+    KeyedVector< DrmSupportInfo, String8 > mSupportInfoToPlugInIdMap;
+    KeyedVector< int, IDrmEngine*> mConvertSessionMap;
+    KeyedVector< int, sp<IDrmServiceListener> > mServiceListeners;
+    KeyedVector< int, IDrmEngine*> mDecryptSessionMap;
+};
+
+};
+
+#endif /* __DRM_MANAGER_H__ */
+
diff --git a/drm/libdrmframework/include/DrmManagerClientImpl.h b/drm/libdrmframework/include/DrmManagerClientImpl.h
new file mode 100644
index 0000000..e70e6e1
--- /dev/null
+++ b/drm/libdrmframework/include/DrmManagerClientImpl.h
@@ -0,0 +1,400 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef __DRM_MANAGER_CLIENT_IMPL_H__
+#define __DRM_MANAGER_CLIENT_IMPL_H__
+
+#include <binder/IMemory.h>
+#include <utils/threads.h>
+#include <drm/DrmManagerClient.h>
+
+#include "IDrmManagerService.h"
+
+namespace android {
+
+class DrmInfoEvent;
+/**
+ * This is implementation class for DrmManagerClient class.
+ *
+ * Only the JNI layer creates an instance of this class to delegate
+ * functionality to Native later.
+ *
+ */
+class DrmManagerClientImpl : public BnDrmServiceListener {
+private:
+    DrmManagerClientImpl();
+
+public:
+    static DrmManagerClientImpl* create(int* pUniqueId);
+
+    static void remove(int uniqueId);
+
+    virtual ~DrmManagerClientImpl();
+
+public:
+    /**
+     * Initialize DRM Manager
+     *     load available plug-ins from default plugInDirPath
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @return status_t
+     *     Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure
+     */
+    status_t loadPlugIns(int uniqueId);
+
+    /**
+     * Finalize DRM Manager
+     *     release resources associated with each plug-in
+     *     unload all plug-ins and etc.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @return status_t
+     *     Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure
+     */
+    status_t unloadPlugIns(int uniqueId);
+
+    /**
+     * Register a callback to be invoked when the caller required to
+     * receive necessary information
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] infoListener Listener
+     * @return status_t
+     *            Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure
+     */
+    status_t setOnInfoListener(
+            int uniqueId, const sp<DrmManagerClient::OnInfoListener>& infoListener);
+
+    /**
+     * Get constraint information associated with input content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path of the protected content
+     * @param[in] action Actions defined such as,
+     *     Action::DEFAULT, Action::PLAY, etc
+     * @return DrmConstraints
+     *     key-value pairs of constraint are embedded in it
+     * @note
+     *     In case of error, return NULL
+     */
+    DrmConstraints* getConstraints(int uniqueId, const String8* path, const int action);
+
+    /**
+     * Check whether the given mimetype or path can be handled
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path of the content needs to be handled
+     * @param[in] mimetype Mimetype of the content needs to be handled
+     * @return
+     *     True if DrmManager can handle given path or mime type.
+     */
+    bool canHandle(int uniqueId, const String8& path, const String8& mimeType);
+
+    /**
+     * Executes given drm information based on its type
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] drmInfo Information needs to be processed
+     * @return DrmInfoStatus
+     *     instance as a result of processing given input
+     */
+    DrmInfoStatus* processDrmInfo(int uniqueId, const DrmInfo* drmInfo);
+
+    /**
+     * Retrieves necessary information for registration, unregistration or rights
+     * acquisition information.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] drmInfoRequest Request information to retrieve drmInfo
+     * @return DrmInfo
+     *     instance as a result of processing given input
+     */
+    DrmInfo* acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest);
+
+    /**
+     * Save DRM rights to specified rights path
+     * and make association with content path
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] drmRights DrmRights to be saved
+     * @param[in] rightsPath File path where rights to be saved
+     * @param[in] contentPath File path where content was saved
+     */
+    void saveRights(int uniqueId, const DrmRights& drmRights,
+            const String8& rightsPath, const String8& contentPath);
+
+    /**
+     * Retrieves the mime type embedded inside the original content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path the path of the protected content
+     * @return String8
+     *     Returns mime-type of the original content, such as "video/mpeg"
+     */
+    String8 getOriginalMimeType(int uniqueId, const String8& path);
+
+    /**
+     * Retrieves the type of the protected object (content, rights, etc..)
+     * using specified path or mimetype. At least one parameter should be non null
+     * to retrieve DRM object type
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path of the content or null.
+     * @param[in] mimeType Mime type of the content or null.
+     * @return type of the DRM content,
+     *     such as DrmObjectType::CONTENT, DrmObjectType::RIGHTS_OBJECT
+     */
+    int getDrmObjectType(int uniqueId, const String8& path, const String8& mimeType);
+
+    /**
+     * Check whether the given content has valid rights or not
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path of the protected content
+     * @param[in] action Action to perform (Action::DEFAULT, Action::PLAY, etc)
+     * @return the status of the rights for the protected content,
+     *     such as RightsStatus::RIGHTS_VALID, RightsStatus::RIGHTS_EXPIRED, etc.
+     */
+    int checkRightsStatus(int uniqueId, const String8& path, int action);
+
+    /**
+     * Consumes the rights for a content.
+     * If the reserve parameter is true the rights is reserved until the same
+     * application calls this api again with the reserve parameter set to false.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     * @param[in] action Action to perform. (Action::DEFAULT, Action::PLAY, etc)
+     * @param[in] reserve True if the rights should be reserved.
+     */
+    void consumeRights(int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve);
+
+    /**
+     * Informs the DRM engine about the playback actions performed on the DRM files.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     * @param[in] playbackStatus Playback action (Playback::START, Playback::STOP, Playback::PAUSE)
+     * @param[in] position Position in the file (in milliseconds) where the start occurs.
+     *     Only valid together with Playback::START.
+     */
+    void setPlaybackStatus(
+            int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int position);
+
+    /**
+     * Validates whether an action on the DRM content is allowed or not.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path of the protected content
+     * @param[in] action Action to validate (Action::PLAY, Action::TRANSFER, etc)
+     * @param[in] description Detailed description of the action
+     * @return true if the action is allowed.
+     */
+    bool validateAction(
+        int uniqueId, const String8& path, int action, const ActionDescription& description);
+
+    /**
+     * Removes the rights associated with the given protected content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path of the protected content
+     */
+    void removeRights(int uniqueId, const String8& path);
+
+    /**
+     * Removes all the rights information of each plug-in associated with
+     * DRM framework. Will be used in master reset
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     */
+    void removeAllRights(int uniqueId);
+
+    /**
+     * This API is for Forward Lock based DRM scheme.
+     * Each time the application tries to download a new DRM file
+     * which needs to be converted, then the application has to
+     * begin with calling this API.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] mimeType Description/MIME type of the input data packet
+     * @return Return handle for the convert session
+     */
+    int openConvertSession(int uniqueId, const String8& mimeType);
+
+    /**
+     * Accepts and converts the input data which is part of DRM file.
+     * The resultant converted data and the status is returned in the DrmConvertedInfo
+     * object. This method will be called each time there are new block
+     * of data received by the application.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] convertId Handle for the convert session
+     * @param[in] inputData Input Data which need to be converted
+     * @return Return object contains the status of the data conversion,
+     *     the output converted data and offset. In this case the
+     *     application will ignore the offset information.
+     */
+    DrmConvertedStatus* convertData(int uniqueId, int convertId, const DrmBuffer* inputData);
+
+    /**
+     * Informs the Drm Agent when there is no more data which need to be converted
+     * or when an error occurs. Upon successful conversion of the complete data,
+     * the agent will inform that where the header and body signature
+     * should be added. This signature appending is needed to integrity
+     * protect the converted file.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] convertId Handle for the convert session
+     * @return Return object contains the status of the data conversion,
+     *     the header and body signature data. It also informs
+     *     the application on which offset these signature data
+     *     should be appended.
+     */
+    DrmConvertedStatus* closeConvertSession(int uniqueId, int convertId);
+
+    /**
+     * Retrieves all DrmSupportInfo instance that native DRM framework can handle.
+     * This interface is meant to be used by JNI layer
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[out] length Number of elements in drmSupportInfoArray
+     * @param[out] drmSupportInfoArray Array contains all DrmSupportInfo
+     *             that native DRM framework can handle
+     * @return status_t
+     *     Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure
+     */
+    status_t getAllSupportInfo(int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray);
+
+    /**
+     * Open the decrypt session to decrypt the given protected content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] fd File descriptor of the protected content to be decrypted
+     * @param[in] offset Start position of the content
+     * @param[in] length The length of the protected content
+     * @return
+     *     Handle for the decryption session
+     */
+    DecryptHandle* openDecryptSession(int uniqueId, int fd, int offset, int length);
+
+    /**
+     * Close the decrypt session for the given handle
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     */
+    void closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle);
+
+    /**
+     * Initialize decryption for the given unit of the protected content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     * @param[in] decryptUnitId ID which specifies decryption unit, such as track ID
+     * @param[in] headerInfo Information for initializing decryption of this decrypUnit
+     */
+    void initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* headerInfo);
+
+    /**
+     * Decrypt the protected content buffers for the given unit
+     * This method will be called any number of times, based on number of
+     * encrypted streams received from application.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     * @param[in] decryptUnitId ID which specifies decryption unit, such as track ID
+     * @param[in] encBuffer Encrypted data block
+     * @param[out] decBuffer Decrypted data block
+     * @return status_t
+     *     Returns the error code for this API
+     *     DRM_NO_ERROR for success, and one of DRM_ERROR_UNKNOWN, DRM_ERROR_LICENSE_EXPIRED
+     *     DRM_ERROR_SESSION_NOT_OPENED, DRM_ERROR_DECRYPT_UNIT_NOT_INITIALIZED,
+     *     DRM_ERROR_DECRYPT for failure.
+     */
+    status_t decrypt(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* encBuffer, DrmBuffer** decBuffer);
+
+    /**
+     * Finalize decryption for the given unit of the protected content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     * @param[in] decryptUnitId ID which specifies decryption unit, such as track ID
+     */
+    void finalizeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId);
+
+    /**
+     * Reads the specified number of bytes from an open DRM file.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     * @param[out] buffer Reference to the buffer that should receive the read data.
+     * @param[in] numBytes Number of bytes to read.
+     * @param[in] offset Offset with which to update the file position.
+     *
+     * @return Number of bytes read. Returns -1 for Failure.
+     */
+    ssize_t pread(int uniqueId, DecryptHandle* decryptHandle,
+            void* buffer, ssize_t numBytes, off_t offset);
+
+    /**
+     * Notify the event to the registered listener
+     *
+     * @param[in] event The event to be notified
+     * @return status_t
+     *     Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure
+     */
+    status_t notify(const DrmInfoEvent& event);
+
+private:
+    /**
+     * Initialize DRM Manager
+     *     load available plug-ins from plugInDirPath
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] plugInDirPath Directory from where to load plug-ins
+     * @return status_t
+     *     Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure
+     */
+    status_t loadPlugIns(int uniqueId, const String8& plugInDirPath);
+
+    /**
+     * Install new DRM Engine Plug-in at the runtime
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] drmEngine Shared Object(so) File in which DRM Engine defined
+     * @return status_t
+     *     Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure
+     */
+    status_t installDrmEngine(int uniqueId, const String8& drmEngineFile);
+
+private:
+    Mutex mLock;
+    sp<DrmManagerClient::OnInfoListener> mOnInfoListener;
+
+private:
+    static Mutex mMutex;
+    static Vector<int> mUniqueIdVector;
+    static sp<IDrmManagerService> mDrmManagerService;
+    static const sp<IDrmManagerService>& getDrmManagerService();
+    static const String8 EMPTY_STRING;
+};
+
+};
+
+#endif /* __DRM_MANAGER_CLIENT_IMPL_H__ */
+
diff --git a/drm/libdrmframework/include/DrmManagerService.h b/drm/libdrmframework/include/DrmManagerService.h
new file mode 100644
index 0000000..fef121c
--- /dev/null
+++ b/drm/libdrmframework/include/DrmManagerService.h
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef __DRM_MANAGER_SERVICE_H__
+#define __DRM_MANAGER_SERVICE_H__
+
+#include <utils/RefBase.h>
+#include <utils/KeyedVector.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+#include "IDrmManagerService.h"
+#include "IDrmServiceListener.h"
+
+namespace android {
+
+class DrmManager;
+class String8;
+class Mutex;
+
+/**
+ * This is the implementation class for DRM manager service. This delegates
+ * the responsibility to DrmManager.
+ *
+ * The instance of this class is created while starting the DRM manager service.
+ *
+ */
+class DrmManagerService : public BnDrmManagerService {
+public:
+    static void instantiate();
+
+private:
+    DrmManagerService();
+    virtual ~DrmManagerService();
+
+public:
+    status_t loadPlugIns(int uniqueId);
+
+    status_t loadPlugIns(int uniqueId, const String8& plugInDirPath);
+
+    status_t setDrmServiceListener(
+            int uniqueId, const sp<IDrmServiceListener>& drmServiceListener);
+
+    status_t unloadPlugIns(int uniqueId);
+
+    status_t installDrmEngine(int uniqueId, const String8& drmEngineFile);
+
+    DrmConstraints* getConstraints(int uniqueId, const String8* path, const int action);
+
+    bool canHandle(int uniqueId, const String8& path, const String8& mimeType);
+
+    DrmInfoStatus* processDrmInfo(int uniqueId, const DrmInfo* drmInfo);
+
+    DrmInfo* acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInforequest);
+
+    void saveRights(int uniqueId, const DrmRights& drmRights,
+            const String8& rightsPath, const String8& contentPath);
+
+    String8 getOriginalMimeType(int uniqueId, const String8& path);
+
+    int getDrmObjectType(int uniqueId, const String8& path, const String8& mimeType);
+
+    int checkRightsStatus(int uniqueId, const String8& path,int action);
+
+    void consumeRights(int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve);
+
+    void setPlaybackStatus(
+            int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int position);
+
+    bool validateAction(int uniqueId, const String8& path,
+            int action, const ActionDescription& description);
+
+    void removeRights(int uniqueId, const String8& path);
+
+    void removeAllRights(int uniqueId);
+
+    int openConvertSession(int uniqueId, const String8& mimeType);
+
+    DrmConvertedStatus* convertData(int uniqueId, int convertId, const DrmBuffer* inputData);
+
+    DrmConvertedStatus* closeConvertSession(int uniqueId, int convertId);
+
+    status_t getAllSupportInfo(int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray);
+
+    DecryptHandle* openDecryptSession(int uniqueId, int fd, int offset, int length);
+
+    void closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle);
+
+    void initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* headerInfo);
+
+    status_t decrypt(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* encBuffer, DrmBuffer** decBuffer);
+
+    void finalizeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId);
+
+    ssize_t pread(int uniqueId, DecryptHandle* decryptHandle,
+            void* buffer, ssize_t numBytes, off_t offset);
+
+private:
+    DrmManager* mDrmManager;
+};
+
+};
+
+#endif /* __DRM_MANAGER_SERVICE_H__ */
+
diff --git a/drm/libdrmframework/include/IDrmIOService.h b/drm/libdrmframework/include/IDrmIOService.h
new file mode 100644
index 0000000..5e0d907
--- /dev/null
+++ b/drm/libdrmframework/include/IDrmIOService.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef __IDRM_IO_SERVICE_H__
+#define __IDRM_IO_SERVICE_H__
+
+#include <utils/RefBase.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+
+namespace android {
+
+/**
+ * This is the interface class for DRM IO service.
+ *
+ */
+class IDrmIOService : public IInterface
+{
+public:
+    enum {
+        WRITE_TO_FILE = IBinder::FIRST_CALL_TRANSACTION,
+        READ_FROM_FILE
+    };
+
+public:
+    DECLARE_META_INTERFACE(DrmIOService);
+
+public:
+    /**
+     * Writes the data into the file path provided
+     *
+     * @param[in] filePath Path of the file
+     * @param[in] dataBuffer Data to write
+     */
+    virtual void writeToFile(const String8& filePath, const String8& dataBuffer) = 0;
+
+    /**
+     * Reads the data from the file path provided
+     *
+     * @param[in] filePath Path of the file
+     * @return Data read from the file
+     */
+    virtual String8 readFromFile(const String8& filePath) = 0;
+};
+
+/**
+ * This is the Binder implementation class for DRM IO service.
+ */
+class BpDrmIOService: public BpInterface<IDrmIOService>
+{
+public:
+    BpDrmIOService(const sp<IBinder>& impl)
+            : BpInterface<IDrmIOService>(impl) {}
+
+    virtual void writeToFile(const String8& filePath, const String8& dataBuffer);
+
+    virtual String8 readFromFile(const String8& filePath);
+};
+
+/**
+ * This is the Binder implementation class for DRM IO service.
+ */
+class BnDrmIOService: public BnInterface<IDrmIOService>
+{
+public:
+    virtual status_t onTransact(
+            uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags = 0);
+};
+
+};
+
+#endif /* __IDRM_IO_SERVICE_H__ */
+
diff --git a/drm/libdrmframework/include/IDrmManagerService.h b/drm/libdrmframework/include/IDrmManagerService.h
new file mode 100644
index 0000000..a4d128a
--- /dev/null
+++ b/drm/libdrmframework/include/IDrmManagerService.h
@@ -0,0 +1,242 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef __IDRM_MANAGER_SERVICE_H__
+#define __IDRM_MANAGER_SERVICE_H__
+
+#include <utils/RefBase.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+#include <drm/drm_framework_common.h>
+#include "IDrmServiceListener.h"
+
+namespace android {
+
+class DrmContentIds;
+class DrmConstraints;
+class DrmRights;
+class DrmInfo;
+class DrmInfoStatus;
+class DrmInfoRequest;
+class DrmSupportInfo;
+class DrmConvertedStatus;
+class String8;
+class ActionDescription;
+
+/**
+ * This is the interface class for DRM Manager service.
+ *
+ */
+class IDrmManagerService : public IInterface
+{
+public:
+    enum {
+        LOAD_PLUGINS = IBinder::FIRST_CALL_TRANSACTION,
+        LOAD_PLUGINS_FROM_PATH,
+        SET_DRM_SERVICE_LISTENER,
+        UNLOAD_PLUGINS,
+        INSTALL_DRM_ENGINE,
+        GET_CONSTRAINTS_FROM_CONTENT,
+        CAN_HANDLE,
+        PROCESS_DRM_INFO,
+        ACQUIRE_DRM_INFO,
+        SAVE_RIGHTS,
+        GET_ORIGINAL_MIMETYPE,
+        GET_DRM_OBJECT_TYPE,
+        CHECK_RIGHTS_STATUS,
+        CONSUME_RIGHTS,
+        SET_PLAYBACK_STATUS,
+        VALIDATE_ACTION,
+        REMOVE_RIGHTS,
+        REMOVE_ALL_RIGHTS,
+        OPEN_CONVERT_SESSION,
+        CONVERT_DATA,
+        CLOSE_CONVERT_SESSION,
+        GET_ALL_SUPPORT_INFO,
+        OPEN_DECRYPT_SESSION,
+        CLOSE_DECRYPT_SESSION,
+        INITIALIZE_DECRYPT_UNIT,
+        DECRYPT,
+        FINALIZE_DECRYPT_UNIT,
+        PREAD
+    };
+
+public:
+    DECLARE_META_INTERFACE(DrmManagerService);
+
+public:
+    virtual status_t loadPlugIns(int uniqueId) = 0;
+
+    virtual status_t loadPlugIns(int uniqueId, const String8& plugInDirPath) = 0;
+
+    virtual status_t setDrmServiceListener(
+            int uniqueId, const sp<IDrmServiceListener>& infoListener) = 0;
+
+    virtual status_t unloadPlugIns(int uniqueId) = 0;
+
+    virtual status_t installDrmEngine(int uniqueId, const String8& drmEngineFile) = 0;
+
+    virtual DrmConstraints* getConstraints(
+            int uniqueId, const String8* path, const int action) = 0;
+
+    virtual bool canHandle(int uniqueId, const String8& path, const String8& mimeType) = 0;
+
+    virtual DrmInfoStatus* processDrmInfo(int uniqueId, const DrmInfo* drmInfo) = 0;
+
+    virtual DrmInfo* acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInforequest) = 0;
+
+    virtual void saveRights(int uniqueId, const DrmRights& drmRights,
+            const String8& rightsPath, const String8& contentPath) = 0;
+
+    virtual String8 getOriginalMimeType(int uniqueId, const String8& path) = 0;
+
+    virtual int getDrmObjectType(
+            int uniqueId, const String8& path, const String8& mimeType) = 0;
+
+    virtual int checkRightsStatus(int uniqueId, const String8& path, int action) = 0;
+
+    virtual void consumeRights(
+            int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve) = 0;
+
+    virtual void setPlaybackStatus(
+            int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int position) = 0;
+
+    virtual bool validateAction(
+            int uniqueId, const String8& path,
+            int action, const ActionDescription& description) = 0;
+
+    virtual void removeRights(int uniqueId, const String8& path) = 0;
+
+    virtual void removeAllRights(int uniqueId) = 0;
+
+    virtual int openConvertSession(int uniqueId, const String8& mimeType) = 0;
+
+    virtual DrmConvertedStatus* convertData(
+            int uniqueId, int convertId, const DrmBuffer* inputData) = 0;
+
+    virtual DrmConvertedStatus* closeConvertSession(int uniqueId, int convertId) = 0;
+
+    virtual status_t getAllSupportInfo(
+            int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray) = 0;
+
+    virtual DecryptHandle* openDecryptSession(int uniqueId, int fd, int offset, int length) = 0;
+
+    virtual void closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle) = 0;
+
+    virtual void initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* headerInfo) = 0;
+
+    virtual status_t decrypt(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* encBuffer, DrmBuffer** decBuffer) = 0;
+
+    virtual void finalizeDecryptUnit(
+            int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId) = 0;
+
+    virtual ssize_t pread(int uniqueId, DecryptHandle* decryptHandle,
+            void* buffer, ssize_t numBytes,off_t offset) = 0;
+};
+
+/**
+ * This is the Binder implementation class for DRM Manager service.
+ */
+class BpDrmManagerService: public BpInterface<IDrmManagerService>
+{
+public:
+    BpDrmManagerService(const sp<IBinder>& impl)
+            : BpInterface<IDrmManagerService>(impl) {}
+
+    virtual status_t loadPlugIns(int uniqueId);
+
+    virtual status_t loadPlugIns(int uniqueId, const String8& plugInDirPath);
+
+    virtual status_t setDrmServiceListener(
+            int uniqueId, const sp<IDrmServiceListener>& infoListener);
+
+    virtual status_t unloadPlugIns(int uniqueId);
+
+    virtual status_t installDrmEngine(int uniqueId, const String8& drmEngineFile);
+
+    virtual DrmConstraints* getConstraints(int uniqueId, const String8* path, const int action);
+
+    virtual bool canHandle(int uniqueId, const String8& path, const String8& mimeType);
+
+    virtual DrmInfoStatus* processDrmInfo(int uniqueId, const DrmInfo* drmInfo);
+
+    virtual DrmInfo* acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInforequest);
+
+    virtual void saveRights(int uniqueId, const DrmRights& drmRights,
+            const String8& rightsPath, const String8& contentPath);
+
+    virtual String8 getOriginalMimeType(int uniqueId, const String8& path);
+
+    virtual int getDrmObjectType(int uniqueId, const String8& path, const String8& mimeType);
+
+    virtual int checkRightsStatus(int uniqueId, const String8& path, int action);
+
+    virtual void consumeRights(
+            int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve);
+
+    virtual void setPlaybackStatus(
+            int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int position);
+
+    virtual bool validateAction(
+            int uniqueId, const String8& path, int action, const ActionDescription& description);
+
+    virtual void removeRights(int uniqueId, const String8& path);
+
+    virtual void removeAllRights(int uniqueId);
+
+    virtual int openConvertSession(int uniqueId, const String8& mimeType);
+
+    virtual DrmConvertedStatus* convertData(
+            int uniqueId, int convertId, const DrmBuffer* inputData);
+
+    virtual DrmConvertedStatus* closeConvertSession(int uniqueId, int convertId);
+
+    virtual status_t getAllSupportInfo(
+            int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray);
+
+    virtual DecryptHandle* openDecryptSession(int uniqueId, int fd, int offset, int length);
+
+    virtual void closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle);
+
+    virtual void initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* headerInfo);
+
+    virtual status_t decrypt(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* encBuffer, DrmBuffer** decBuffer);
+
+    virtual void finalizeDecryptUnit(
+            int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId);
+
+    virtual ssize_t pread(int uniqueId, DecryptHandle* decryptHandle,
+            void* buffer, ssize_t numBytes, off_t offset);
+};
+
+/**
+ * This is the Binder implementation class for DRM Manager service.
+ */
+class BnDrmManagerService: public BnInterface<IDrmManagerService>
+{
+public:
+    virtual status_t onTransact(
+            uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags = 0);
+};
+
+};
+
+#endif /* __IDRM_MANAGER_SERVICE_H__ */
+
diff --git a/drm/libdrmframework/include/IDrmServiceListener.h b/drm/libdrmframework/include/IDrmServiceListener.h
new file mode 100644
index 0000000..7f7109f
--- /dev/null
+++ b/drm/libdrmframework/include/IDrmServiceListener.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef __IDRM_SERVICE_LISTENER_H__
+#define __IDRM_SERVICE_LISTENER_H__
+
+#include <utils/RefBase.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+
+namespace android {
+
+class DrmInfoEvent;
+
+/**
+ * This is the interface class for DRM service listener.
+ *
+ */
+class IDrmServiceListener : public IInterface
+{
+public:
+    enum {
+        NOTIFY = IBinder::FIRST_CALL_TRANSACTION,
+    };
+
+public:
+    DECLARE_META_INTERFACE(DrmServiceListener);
+
+public:
+    virtual status_t notify(const DrmInfoEvent& event) = 0;
+};
+
+/**
+ * This is the Binder implementation class for DRM service listener.
+ */
+class BpDrmServiceListener: public BpInterface<IDrmServiceListener>
+{
+public:
+    BpDrmServiceListener(const sp<IBinder>& impl)
+            : BpInterface<IDrmServiceListener>(impl) {}
+
+    virtual status_t notify(const DrmInfoEvent& event);
+};
+
+/**
+ * This is the Binder implementation class for DRM service listener.
+ */
+class BnDrmServiceListener: public BnInterface<IDrmServiceListener>
+{
+public:
+    virtual status_t onTransact(
+            uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags = 0);
+};
+
+};
+
+#endif /* __IDRM_SERVICE_LISTENER_H__ */
+
diff --git a/drm/libdrmframework/include/PlugInManager.h b/drm/libdrmframework/include/PlugInManager.h
new file mode 100644
index 0000000..9ad195f
--- /dev/null
+++ b/drm/libdrmframework/include/PlugInManager.h
@@ -0,0 +1,273 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef __PLUGIN_MANAGER_H__
+#define __PLUGIN_MANAGER_H__
+
+#include <dlfcn.h>
+#include <sys/types.h>
+#include <dirent.h>
+
+#include <utils/String8.h>
+#include <utils/Vector.h>
+#include <utils/KeyedVector.h>
+
+namespace android {
+
+const char* const PLUGIN_MANAGER_CREATE = "create";
+const char* const PLUGIN_MANAGER_DESTROY = "destroy";
+const char* const PLUGIN_EXTENSION = ".so";
+
+/**
+ * This is the template class for Plugin manager.
+ *
+ * The DrmManager uses this class to handle the plugins.
+ *
+ */
+template<typename Type>
+class TPlugInManager {
+private:
+    typedef void*      HANDLE;
+    typedef Type*      create_t(void);
+    typedef void       destroy_t(Type*);
+    typedef create_t*  FPCREATE;
+    typedef destroy_t* FPDESTORY;
+
+    typedef struct _PlugInContainer {
+        String8   sPath;
+        HANDLE    hHandle;
+        FPCREATE  fpCreate;
+        FPDESTORY fpDestory;
+        Type*     pInstance;
+
+        _PlugInContainer():
+            sPath("")
+            ,hHandle(NULL)
+            ,fpCreate(NULL)
+            ,fpDestory(NULL)
+            ,pInstance(NULL)
+            {}
+    } PlugInContainer;
+
+    typedef KeyedVector<String8, PlugInContainer*> PlugInMap;
+    PlugInMap m_plugInMap;
+
+    typedef Vector<String8> PlugInIdList;
+    PlugInIdList m_plugInIdList;
+
+public:
+    /**
+     * Load all the plug-ins in the specified directory
+     *
+     * @param[in] rsPlugInDirPath
+     *     Directory path which plug-ins (dynamic library) are stored
+     * @note Plug-ins should be implemented according to the specification
+     */
+    void loadPlugIns(const String8& rsPlugInDirPath) {
+        Vector<String8> plugInFileList = getPlugInPathList(rsPlugInDirPath);
+
+        if (!plugInFileList.isEmpty()) {
+            for (unsigned int i = 0; i < plugInFileList.size(); ++i) {
+                loadPlugIn(plugInFileList[i]);
+            }
+        }
+    }
+
+    /**
+     * Unload all the plug-ins
+     *
+     */
+    void unloadPlugIns() {
+        for (unsigned int i = 0; i < m_plugInIdList.size(); ++i) {
+            unloadPlugIn(m_plugInIdList[i]);
+        }
+        m_plugInIdList.clear();
+    }
+
+    /**
+     * Get all the IDs of available plug-ins
+     *
+     * @return[in] plugInIdList
+     *     String type Vector in which all plug-in IDs are stored
+     */
+    Vector<String8> getPlugInIdList() const {
+        return m_plugInIdList;
+    }
+
+    /**
+     * Get a plug-in reference of specified ID
+     *
+     * @param[in] rsPlugInId
+     *     Plug-in ID to be used
+     * @return plugIn
+     *     Reference of specified plug-in instance
+     */
+    Type& getPlugIn(const String8& rsPlugInId) {
+        if (!contains(rsPlugInId)) {
+            // This error case never happens
+        }
+        return *(m_plugInMap.valueFor(rsPlugInId)->pInstance);
+    }
+
+public:
+    /**
+     * Load a plug-in stored in the specified path
+     *
+     * @param[in] rsPlugInPath
+     *     Plug-in (dynamic library) file path
+     * @note Plug-in should be implemented according to the specification
+     */
+    void loadPlugIn(const String8& rsPlugInPath) {
+        if (contains(rsPlugInPath)) {
+            return;
+        }
+
+        PlugInContainer* pPlugInContainer = new PlugInContainer();
+
+        pPlugInContainer->hHandle = dlopen(rsPlugInPath.string(), RTLD_LAZY);
+
+        if (NULL == pPlugInContainer->hHandle) {
+            delete pPlugInContainer;
+            pPlugInContainer = NULL;
+            return;
+        }
+
+        pPlugInContainer->sPath = rsPlugInPath;
+        pPlugInContainer->fpCreate
+                = (FPCREATE)dlsym(pPlugInContainer->hHandle, PLUGIN_MANAGER_CREATE);
+        pPlugInContainer->fpDestory
+                = (FPDESTORY)dlsym(pPlugInContainer->hHandle, PLUGIN_MANAGER_DESTROY);
+
+        if (NULL != pPlugInContainer->fpCreate && NULL != pPlugInContainer->fpDestory) {
+            pPlugInContainer->pInstance = (Type*)pPlugInContainer->fpCreate();
+            m_plugInIdList.add(rsPlugInPath);
+            m_plugInMap.add(rsPlugInPath, pPlugInContainer);
+        } else {
+            dlclose(pPlugInContainer->hHandle);
+            delete pPlugInContainer;
+            pPlugInContainer = NULL;
+            return;
+        }
+    }
+
+    /**
+     * Unload a plug-in stored in the specified path
+     *
+     * @param[in] rsPlugInPath
+     *     Plug-in (dynamic library) file path
+     */
+    void unloadPlugIn(const String8& rsPlugInPath) {
+        if (!contains(rsPlugInPath)) {
+            return;
+        }
+
+        PlugInContainer* pPlugInContainer = m_plugInMap.valueFor(rsPlugInPath);
+        pPlugInContainer->fpDestory(pPlugInContainer->pInstance);
+        dlclose(pPlugInContainer->hHandle);
+
+        m_plugInMap.removeItem(rsPlugInPath);
+        delete pPlugInContainer;
+        pPlugInContainer = NULL;
+    }
+
+private:
+    /**
+     * True if TPlugInManager contains rsPlugInId
+     */
+    bool contains(const String8& rsPlugInId) {
+        return m_plugInMap.indexOfKey(rsPlugInId) != NAME_NOT_FOUND;
+    }
+
+    /**
+     * Return file path list of plug-ins stored in the specified directory
+     *
+     * @param[in] rsDirPath
+     *     Directory path in which plug-ins are stored
+     * @return plugInFileList
+     *     String type Vector in which file path of plug-ins are stored
+     */
+    Vector<String8> getPlugInPathList(const String8& rsDirPath) {
+        Vector<String8> fileList;
+        DIR* pDir = opendir(rsDirPath.string());
+        struct dirent* pEntry = new dirent();
+
+        while (NULL != pDir && NULL != (pEntry = readdir(pDir))) {
+            if (!isPlugIn(pEntry)) {
+                continue;
+            }
+            String8 plugInPath;
+            plugInPath += rsDirPath;
+            plugInPath += "/";
+            plugInPath += pEntry->d_name;
+
+            fileList.add(plugInPath);
+        }
+
+        if (NULL != pDir) {
+            closedir(pDir);
+        }
+        delete pEntry;
+        pEntry = NULL;
+
+        return fileList;
+    }
+
+    /**
+     * True if the input name denotes plug-in
+     */
+    bool isPlugIn(const struct dirent* pEntry) const {
+        String8 sName(pEntry->d_name);
+        int extentionPos = sName.size() - String8(PLUGIN_EXTENSION).size();
+        if (extentionPos < 0) {
+            return false;
+        }
+        return extentionPos == (int)sName.find(PLUGIN_EXTENSION);
+    }
+
+    /**
+     * True if the input entry is "." or ".."
+     */
+    bool isDotOrDDot(const struct dirent* pEntry) const {
+        String8 sName(pEntry->d_name);
+        return "." == sName || ".." == sName;
+    }
+
+    /**
+     * True if input entry is directory
+     */
+    bool isDirectory(const struct dirent* pEntry) const {
+        return DT_DIR == pEntry->d_type;
+    }
+
+    /**
+     * True if input entry is regular file
+     */
+    bool isRegularFile(const struct dirent* pEntry) const {
+        return DT_REG == pEntry->d_type;
+    }
+
+    /**
+     * True if input entry is link
+     */
+    bool isLink(const struct dirent* pEntry) const {
+        return DT_LNK == pEntry->d_type;
+    }
+};
+
+};
+
+#endif /* __PLUGIN_MANAGER_H__ */
+
diff --git a/drm/libdrmframework/include/ReadWriteUtils.h b/drm/libdrmframework/include/ReadWriteUtils.h
new file mode 100644
index 0000000..022149e
--- /dev/null
+++ b/drm/libdrmframework/include/ReadWriteUtils.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef __READ_WRITE_UTILS_H__
+#define __READ_WRITE_UTILS_H__
+
+#include <utils/FileMap.h>
+#include <drm/drm_framework_common.h>
+
+namespace android {
+
+/**
+ * This is an utility class which performs IO operations.
+ *
+ */
+class ReadWriteUtils {
+public:
+    /**
+     * Constructor for ReadWriteUtils
+     */
+    ReadWriteUtils() {}
+
+    /**
+     * Destructor for ReadWriteUtils
+     */
+    virtual ~ReadWriteUtils();
+
+public:
+    /**
+     * Reads the data from the file path provided
+     *
+     * @param[in] filePath Path of the file
+     * @return Data read from the file
+     */
+    static String8 readBytes(const String8& filePath);
+    /**
+     * Writes the data into the file path provided
+     *
+     * @param[in] filePath Path of the file
+     * @param[in] dataBuffer Data to write
+     */
+    static void writeToFile(const String8& filePath, const String8& data);
+    /**
+     * Appends the data into the file path provided
+     *
+     * @param[in] filePath Path of the file
+     * @param[in] dataBuffer Data to append
+     */
+    static void appendToFile(const String8& filePath, const String8& data);
+
+private:
+    FileMap* mFileMap;
+};
+
+};
+
+#endif /* __READ_WRITE_UTILS_H__ */
+
diff --git a/drm/libdrmframework/include/StringTokenizer.h b/drm/libdrmframework/include/StringTokenizer.h
new file mode 100644
index 0000000..70e7558
--- /dev/null
+++ b/drm/libdrmframework/include/StringTokenizer.h
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef __STRING_TOKENIZER_H__
+#define __STRING_TOKENIZER_H__
+
+#include <drm/drm_framework_common.h>
+
+namespace android {
+
+/**
+ * This is an utility class for String manipulation.
+ *
+ */
+class StringTokenizer {
+public:
+    /**
+     * Iterator for string tokens
+     */
+    class Iterator {
+        friend class StringTokenizer;
+    private:
+        Iterator(StringTokenizer* StringTokenizer)
+         : mStringTokenizer(StringTokenizer), mIndex(0) {}
+
+    public:
+        Iterator(const Iterator& iterator);
+        Iterator& operator=(const Iterator& iterator);
+        virtual ~Iterator() {}
+
+    public:
+        bool hasNext();
+        String8& next();
+
+    private:
+        StringTokenizer* mStringTokenizer;
+        unsigned int mIndex;
+    };
+
+public:
+    /**
+     * Constructor for StringTokenizer
+     *
+     * @param[in] string Complete string data
+     * @param[in] delimeter Delimeter used to split the string
+     */
+    StringTokenizer(const String8& string, const String8& delimeter);
+
+    /**
+     * Destructor for StringTokenizer
+     */
+    ~StringTokenizer() {}
+
+private:
+    /**
+     * Splits the string according to the delimeter
+     */
+    void splitString(const String8& string, const String8& delimeter);
+
+public:
+    /**
+     * Returns Iterator object to walk through the split string values
+     *
+     * @return Iterator object
+     */
+    Iterator iterator();
+
+private:
+    Vector<String8> mStringTokenizerVector;
+};
+
+};
+#endif /* __STRING_TOKENIZER_H__ */
+
diff --git a/drm/libdrmframework/plugins/Android.mk b/drm/libdrmframework/plugins/Android.mk
new file mode 100644
index 0000000..9ee7961
--- /dev/null
+++ b/drm/libdrmframework/plugins/Android.mk
@@ -0,0 +1,16 @@
+#
+# Copyright (C) 2010 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.
+#
+include $(call all-subdir-makefiles)
diff --git a/drm/libdrmframework/plugins/common/include/DrmEngineBase.h b/drm/libdrmframework/plugins/common/include/DrmEngineBase.h
new file mode 100644
index 0000000..667958a
--- /dev/null
+++ b/drm/libdrmframework/plugins/common/include/DrmEngineBase.h
@@ -0,0 +1,411 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef __DRM_ENGINE_BASE_H__
+#define __DRM_ENGINE_BASE_H__
+
+#include <drm/drm_framework_common.h>
+#include "IDrmEngine.h"
+
+namespace android {
+
+/**
+ * This class is an interface for plug-in developers
+ *
+ * Responsibility of this class is control the sequence of actual plug-in.
+ * All each plug-in developer has to do is implement onXXX() type virtual interfaces.
+ */
+class DrmEngineBase : public IDrmEngine {
+public:
+    DrmEngineBase();
+    virtual ~DrmEngineBase();
+
+public:
+    DrmConstraints* getConstraints(int uniqueId, const String8* path, int action);
+
+    status_t initialize(int uniqueId);
+
+    status_t setOnInfoListener(int uniqueId, const IDrmEngine::OnInfoListener* infoListener);
+
+    status_t terminate(int uniqueId);
+
+    bool canHandle(int uniqueId, const String8& path);
+
+    DrmInfoStatus* processDrmInfo(int uniqueId, const DrmInfo* drmInfo);
+
+    void saveRights(int uniqueId, const DrmRights& drmRights,
+            const String8& rightsPath, const String8& contentPath);
+
+    DrmInfo* acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest);
+
+    String8 getOriginalMimeType(int uniqueId, const String8& path);
+
+    int getDrmObjectType(int uniqueId, const String8& path, const String8& mimeType);
+
+    int checkRightsStatus(int uniqueId, const String8& path, int action);
+
+    void consumeRights(int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve);
+
+    void setPlaybackStatus(
+            int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int position);
+
+    bool validateAction(
+            int uniqueId, const String8& path, int action, const ActionDescription& description);
+
+    void removeRights(int uniqueId, const String8& path);
+
+    void removeAllRights(int uniqueId);
+
+    void openConvertSession(int uniqueId, int convertId);
+
+    DrmConvertedStatus* convertData(int uniqueId, int convertId, const DrmBuffer* inputData);
+
+    DrmConvertedStatus* closeConvertSession(int uniqueId, int convertId);
+
+    DrmSupportInfo* getSupportInfo(int uniqueId);
+
+    status_t openDecryptSession(
+            int uniqueId, DecryptHandle* decryptHandle, int fd, int offset, int length);
+
+    void closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle);
+
+    void initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* headerInfo);
+
+    status_t decrypt(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* encBuffer, DrmBuffer** decBuffer);
+
+    void finalizeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId);
+
+    ssize_t pread(int uniqueId, DecryptHandle* decryptHandle,
+            void* buffer, ssize_t numBytes, off_t offset);
+
+protected:
+    /////////////////////////////////////////////////////
+    // Interface for plug-in developers                //
+    // each plug-in has to implement following method  //
+    /////////////////////////////////////////////////////
+    /**
+     * Get constraint information associated with input content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path of the protected content
+     * @param[in] action Actions defined such as,
+     *     Action::DEFAULT, Action::PLAY, etc
+     * @return DrmConstraints
+     *     key-value pairs of constraint are embedded in it
+     * @note
+     *     In case of error, return NULL
+     */
+    virtual DrmConstraints* onGetConstraints(
+            int uniqueId, const String8* path, int action) = 0;
+
+    /**
+     * Initialize plug-in
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @return status_t
+     *     Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure
+     */
+    virtual status_t onInitialize(int uniqueId) = 0;
+
+    /**
+     * Register a callback to be invoked when the caller required to
+     * receive necessary information
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] infoListener Listener
+     * @return status_t
+     *     Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure
+     */
+    virtual status_t onSetOnInfoListener(
+            int uniqueId, const IDrmEngine::OnInfoListener* infoListener) = 0;
+
+    /**
+     * Terminate the plug-in
+     * and release resource bound to plug-in
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @return status_t
+     *     Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure
+     */
+    virtual status_t onTerminate(int uniqueId) = 0;
+
+    /**
+     * Get whether the given content can be handled by this plugin or not
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path the protected object
+     * @return bool
+     *     Returns true if this plugin can handle , false in case of not able to handle
+     */
+    virtual bool onCanHandle(int uniqueId, const String8& path) = 0;
+
+    /**
+     * Executes given drm information based on its type
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] drmInfo Information needs to be processed
+     * @return DrmInfoStatus
+     *     instance as a result of processing given input
+     */
+    virtual DrmInfoStatus* onProcessDrmInfo(int uniqueId, const DrmInfo* drmInfo) = 0;
+
+    /**
+     * Save DRM rights to specified rights path
+     * and make association with content path
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] drmRights DrmRights to be saved
+     * @param[in] rightsPath File path where rights to be saved
+     * @param[in] contentPath File path where content was saved
+     */
+    virtual void onSaveRights(int uniqueId, const DrmRights& drmRights,
+            const String8& rightspath, const String8& contentPath) = 0;
+
+    /**
+     * Retrieves necessary information for registration, unregistration or rights
+     * acquisition information.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] drmInfoRequest Request information to retrieve drmInfo
+     * @return DrmInfo
+     *     instance as a result of processing given input
+     */
+    virtual DrmInfo* onAcquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInforequest) = 0;
+
+    /**
+     * Retrieves the mime type embedded inside the original content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path of the protected content
+     * @return String8
+     *     Returns mime-type of the original content, such as "video/mpeg"
+     */
+    virtual String8 onGetOriginalMimeType(int uniqueId, const String8& path) = 0;
+
+    /**
+     * Retrieves the type of the protected object (content, rights, etc..)
+     * using specified path or mimetype. At least one parameter should be non null
+     * to retrieve DRM object type
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path of the content or null.
+     * @param[in] mimeType Mime type of the content or null.
+     * @return type of the DRM content,
+     *     such as DrmObjectType::CONTENT, DrmObjectType::RIGHTS_OBJECT
+     */
+    virtual int onGetDrmObjectType(
+            int uniqueId, const String8& path, const String8& mimeType) = 0;
+
+    /**
+     * Check whether the given content has valid rights or not
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path of the protected content
+     * @param[in] action Action to perform (Action::DEFAULT, Action::PLAY, etc)
+     * @return the status of the rights for the protected content,
+     *     such as RightsStatus::RIGHTS_VALID, RightsStatus::RIGHTS_EXPIRED, etc.
+     */
+    virtual int onCheckRightsStatus(int uniqueId, const String8& path, int action) = 0;
+
+    /**
+     * Consumes the rights for a content.
+     * If the reserve parameter is true the rights is reserved until the same
+     * application calls this api again with the reserve parameter set to false.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     * @param[in] action Action to perform. (Action::DEFAULT, Action::PLAY, etc)
+     * @param[in] reserve True if the rights should be reserved.
+     */
+    virtual void onConsumeRights(int uniqueId, DecryptHandle* decryptHandle,
+            int action, bool reserve) = 0;
+
+    /**
+     * Informs the DRM Engine about the playback actions performed on the DRM files.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     * @param[in] playbackStatus Playback action (Playback::START, Playback::STOP, Playback::PAUSE)
+     * @param[in] position Position in the file (in milliseconds) where the start occurs.
+     *     Only valid together with Playback::START.
+     */
+    virtual void onSetPlaybackStatus(
+            int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int position) = 0;
+
+    /**
+     * Validates whether an action on the DRM content is allowed or not.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path of the protected content
+     * @param[in] action Action to validate (Action::PLAY, Action::TRANSFER, etc)
+     * @param[in] description Detailed description of the action
+     * @return true if the action is allowed.
+     */
+    virtual bool onValidateAction(int uniqueId, const String8& path,
+            int action, const ActionDescription& description) = 0;
+
+    /**
+     * Removes the rights associated with the given protected content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path of the protected content
+     */
+    virtual void onRemoveRights(int uniqueId, const String8& path) = 0;
+
+    /**
+     * Removes all the rights information of each plug-in associated with
+     * DRM framework. Will be used in master reset
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     */
+    virtual void onRemoveAllRights(int uniqueId) = 0;
+
+    /**
+     * This API is for Forward Lock based DRM scheme.
+     * Each time the application tries to download a new DRM file
+     * which needs to be converted, then the application has to
+     * begin with calling this API.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] convertId Handle for the convert session
+     */
+    virtual void onOpenConvertSession(int uniqueId, int convertId) = 0;
+
+    /**
+     * Accepts and converts the input data which is part of DRM file.
+     * The resultant converted data and the status is returned in the DrmConvertedInfo
+     * object. This method will be called each time there are new block
+     * of data received by the application.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] convertId Handle for the convert session
+     * @param[in] inputData Input Data which need to be converted
+     * @return Return object contains the status of the data conversion,
+     *     the output converted data and offset. In this case the
+     *     application will ignore the offset information.
+     */
+    virtual DrmConvertedStatus* onConvertData(
+            int uniqueId, int convertId, const DrmBuffer* inputData) = 0;
+
+    /**
+     * Informs the Drm Agent when there is no more data which need to be converted
+     * or when an error occurs. Upon successful conversion of the complete data,
+     * the agent will inform that where the header and body signature
+     * should be added. This signature appending is needed to integrity
+     * protect the converted file.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] convertId Handle for the convert session
+     * @return Return object contains the status of the data conversion,
+     *     the header and body signature data. It also informs
+     *     the application on which offset these signature data
+     *     should be appended.
+     */
+    virtual DrmConvertedStatus* onCloseConvertSession(int uniqueId, int convertId) = 0;
+
+    /**
+     * Returns the information about the Drm Engine capabilities which includes
+     * supported MimeTypes and file suffixes.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @return DrmSupportInfo
+     *     instance which holds the capabilities of a plug-in
+     */
+    virtual DrmSupportInfo* onGetSupportInfo(int uniqueId) = 0;
+
+    /**
+     * Open the decrypt session to decrypt the given protected content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the current decryption session
+     * @param[in] fd File descriptor of the protected content to be decrypted
+     * @param[in] offset Start position of the content
+     * @param[in] length The length of the protected content
+     * @return
+     *     DRM_ERROR_CANNOT_HANDLE for failure and DRM_NO_ERROR for success
+     */
+    virtual status_t onOpenDecryptSession(
+            int uniqueId, DecryptHandle* decryptHandle, int fd, int offset, int length) = 0;
+
+    /**
+     * Close the decrypt session for the given handle
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     */
+    virtual void onCloseDecryptSession(int uniqueId, DecryptHandle* decryptHandle) = 0;
+
+    /**
+     * Initialize decryption for the given unit of the protected content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptId Handle for the decryption session
+     * @param[in] decryptUnitId ID Specifies decryption unit, such as track ID
+     * @param[in] headerInfo Information for initializing decryption of this decrypUnit
+     */
+    virtual void onInitializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* headerInfo) = 0;
+
+    /**
+     * Decrypt the protected content buffers for the given unit
+     * This method will be called any number of times, based on number of
+     * encrypted streams received from application.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptId Handle for the decryption session
+     * @param[in] decryptUnitId ID Specifies decryption unit, such as track ID
+     * @param[in] encBuffer Encrypted data block
+     * @param[out] decBuffer Decrypted data block
+     * @return status_t
+     *     Returns the error code for this API
+     *     DRM_NO_ERROR for success, and one of DRM_ERROR_UNKNOWN, DRM_ERROR_LICENSE_EXPIRED
+     *     DRM_ERROR_SESSION_NOT_OPENED, DRM_ERROR_DECRYPT_UNIT_NOT_INITIALIZED,
+     *     DRM_ERROR_DECRYPT for failure.
+     */
+    virtual status_t onDecrypt(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* encBuffer, DrmBuffer** decBuffer) = 0;
+
+    /**
+     * Finalize decryption for the given unit of the protected content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     * @param[in] decryptUnitId ID Specifies decryption unit, such as track ID
+     */
+    virtual void onFinalizeDecryptUnit(
+            int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId) = 0;
+
+    /**
+     * Reads the specified number of bytes from an open DRM file.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     * @param[out] buffer Reference to the buffer that should receive the read data.
+     * @param[in] numBytes Number of bytes to read.
+     * @param[in] offset Offset with which to update the file position.
+     *
+     * @return Number of bytes read. Returns -1 for Failure.
+     */
+    virtual ssize_t onPread(int uniqueId, DecryptHandle* decryptHandle,
+            void* buffer, ssize_t numBytes, off_t offset) = 0;
+};
+
+};
+
+#endif /* __DRM_ENGINE_BASE_H__ */
+
diff --git a/drm/libdrmframework/plugins/common/include/IDrmEngine.h b/drm/libdrmframework/plugins/common/include/IDrmEngine.h
new file mode 100644
index 0000000..0d52f66
--- /dev/null
+++ b/drm/libdrmframework/plugins/common/include/IDrmEngine.h
@@ -0,0 +1,371 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef __IDRM_ENGINE_H__
+#define __IDRM_ENGINE_H__
+
+#include <drm/drm_framework_common.h>
+
+namespace android {
+
+class DrmContentIds;
+class DrmConstraints;
+class DrmRights;
+class DrmInfo;
+class DrmInfoStatus;
+class DrmConvertedStatus;
+class DrmInfoRequest;
+class DrmSupportInfo;
+class DrmInfoEvent;
+
+/**
+ * This class is an interface for plug-in user
+ *
+ * Responsibility of this class is provide generic interface to DRM Engine Manager.
+ * Each interface need to be as abstract as possible.
+ */
+class IDrmEngine {
+public:
+    virtual ~IDrmEngine() {
+    }
+
+public:
+    class OnInfoListener {
+
+    public:
+        virtual void onInfo(const DrmInfoEvent& event) = 0;
+
+        virtual ~OnInfoListener() { }
+    };
+
+public:
+
+    //////////////////////////////////
+    // Implementation of IDrmEngine //
+    //////////////////////////////////
+
+    /**
+     * Initialize plug-in
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @return status_t
+     *     Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure
+     */
+    virtual status_t initialize(int uniqueId) = 0;
+
+    /**
+     * Register a callback to be invoked when the caller required to
+     * receive necessary information
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] infoListener Listener
+     * @return status_t
+     *     Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure
+     */
+    virtual status_t setOnInfoListener(
+            int uniqueId, const IDrmEngine::OnInfoListener* infoListener) = 0;
+
+    /**
+     * Terminate the plug-in
+     * and release resource bound to plug-in
+     * e.g.) release native resource
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @return status_t
+     *     Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure
+     */
+    virtual status_t terminate(int uniqueId) = 0;
+
+    /**
+     * Get constraint information associated with input content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path of the protected content
+     * @param[in] action Actions defined such as,
+     *     Action::DEFAULT, Action::PLAY, etc
+     * @return DrmConstraints
+     *     key-value pairs of constraint are embedded in it
+     * @note
+     *     In case of error, return NULL
+     */
+    virtual DrmConstraints* getConstraints(
+            int uniqueId, const String8* path, int action) = 0;
+
+    /**
+     * Get whether the given content can be handled by this plugin or not
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path the protected object
+     * @return bool
+     *     true if this plugin can handle , false in case of not able to handle
+     */
+    virtual bool canHandle(int uniqueId, const String8& path) = 0;
+
+    /**
+     * Executes given drm information based on its type
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] drmInfo Information needs to be processed
+     * @return DrmInfoStatus
+     *     instance as a result of processing given input
+     */
+    virtual DrmInfoStatus* processDrmInfo(int uniqueId, const DrmInfo* drmInfo) = 0;
+
+    /**
+     * Retrieves necessary information for registration, unregistration or rights
+     * acquisition information.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] drmInfoRequest Request information to retrieve drmInfo
+     * @return DrmInfo
+     *     instance as a result of processing given input
+     */
+    virtual DrmInfo* acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest) = 0;
+
+    /**
+     * Save DRM rights to specified rights path
+     * and make association with content path
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] drmRights DrmRights to be saved
+     * @param[in] rightsPath File path where rights to be saved
+     * @param[in] contentPath File path where content was saved
+     */
+    virtual void saveRights(int uniqueId, const DrmRights& drmRights,
+            const String8& rightsPath, const String8& contentPath) = 0;
+
+    /**
+     * Retrieves the mime type embedded inside the original content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path of the protected content
+     * @return String8
+     *     Returns mime-type of the original content, such as "video/mpeg"
+     */
+    virtual String8 getOriginalMimeType(int uniqueId, const String8& path) = 0;
+
+    /**
+     * Retrieves the type of the protected object (content, rights, etc..)
+     * using specified path or mimetype. At least one parameter should be non null
+     * to retrieve DRM object type
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path of the content or null.
+     * @param[in] mimeType Mime type of the content or null.
+     * @return type of the DRM content,
+     *     such as DrmObjectType::CONTENT, DrmObjectType::RIGHTS_OBJECT
+     */
+    virtual int getDrmObjectType(
+            int uniqueId, const String8& path, const String8& mimeType) = 0;
+
+    /**
+     * Check whether the given content has valid rights or not
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path of the protected content
+     * @param[in] action Action to perform (Action::DEFAULT, Action::PLAY, etc)
+     * @return the status of the rights for the protected content,
+     *     such as RightsStatus::RIGHTS_VALID, RightsStatus::RIGHTS_EXPIRED, etc.
+     */
+    virtual int checkRightsStatus(int uniqueId, const String8& path, int action) = 0;
+
+    /**
+     * Consumes the rights for a content.
+     * If the reserve parameter is true the rights is reserved until the same
+     * application calls this api again with the reserve parameter set to false.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     * @param[in] action Action to perform. (Action::DEFAULT, Action::PLAY, etc)
+     * @param[in] reserve True if the rights should be reserved.
+     */
+    virtual void consumeRights(
+            int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve) = 0;
+
+    /**
+     * Informs the DRM Engine about the playback actions performed on the DRM files.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     * @param[in] playbackStatus Playback action (Playback::START, Playback::STOP, Playback::PAUSE)
+     * @param[in] position Position in the file (in milliseconds) where the start occurs.
+     *     Only valid together with Playback::START.
+     */
+    virtual void setPlaybackStatus(int uniqueId, DecryptHandle* decryptHandle,
+            int playbackStatus, int position) = 0;
+
+    /**
+     * Validates whether an action on the DRM content is allowed or not.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path of the protected content
+     * @param[in] action Action to validate (Action::PLAY, Action::TRANSFER, etc)
+     * @param[in] description Detailed description of the action
+     * @return true if the action is allowed.
+     */
+    virtual bool validateAction(int uniqueId, const String8& path,
+            int action, const ActionDescription& description) = 0;
+
+    /**
+     * Removes the rights associated with the given protected content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] path Path of the protected content
+     */
+    virtual void removeRights(int uniqueId, const String8& path) = 0;
+
+    /**
+     * Removes all the rights information of each plug-in associated with
+     * DRM framework. Will be used in master reset
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     */
+    virtual void removeAllRights(int uniqueId) = 0;
+
+    /**
+     * This API is for Forward Lock based DRM scheme.
+     * Each time the application tries to download a new DRM file
+     * which needs to be converted, then the application has to
+     * begin with calling this API.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] convertId Handle for the convert session
+     */
+    virtual void openConvertSession(int uniqueId, int convertId) = 0;
+
+    /**
+     * Accepts and converts the input data which is part of DRM file.
+     * The resultant converted data and the status is returned in the DrmConvertedInfo
+     * object. This method will be called each time there are new block
+     * of data received by the application.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] convertId Handle for the convert session
+     * @param[in] inputData Input Data which need to be converted
+     * @return Return object contains the status of the data conversion,
+     *     the output converted data and offset. In this case the
+     *     application will ignore the offset information.
+     */
+    virtual DrmConvertedStatus* convertData(
+            int uniqueId, int convertId, const DrmBuffer* inputData) = 0;
+
+    /**
+     * Informs the Drm Agent when there is no more data which need to be converted
+     * or when an error occurs. Upon successful conversion of the complete data,
+     * the agent will inform that where the header and body signature
+     * should be added. This signature appending is needed to integrity
+     * protect the converted file.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] convertId Handle for the convert session
+     * @return Return object contains the status of the data conversion,
+     *     the header and body signature data. It also informs
+     *     the application on which offset these signature data
+     *     should be appended.
+     */
+    virtual DrmConvertedStatus* closeConvertSession( int uniqueId, int convertId) = 0;
+
+    /**
+     * Returns the information about the Drm Engine capabilities which includes
+     * supported MimeTypes and file suffixes.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @return DrmSupportInfo
+     *     instance which holds the capabilities of a plug-in
+     */
+    virtual DrmSupportInfo* getSupportInfo(int uniqueId) = 0;
+
+    /**
+     * Open the decrypt session to decrypt the given protected content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the current decryption session
+     * @param[in] fd File descriptor of the protected content to be decrypted
+     * @param[in] offset Start position of the content
+     * @param[in] length The length of the protected content
+     * @return
+     *     DRM_ERROR_CANNOT_HANDLE for failure and DRM_NO_ERROR for success
+     */
+    virtual status_t openDecryptSession(
+        int uniqueId, DecryptHandle* decryptHandle, int fd, int offset, int length) = 0;
+
+    /**
+     * Close the decrypt session for the given handle
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     */
+    virtual void closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle) = 0;
+
+    /**
+     * Initialize decryption for the given unit of the protected content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     * @param[in] decryptUnitId ID which specifies decryption unit, such as track ID
+     * @param[in] headerInfo Information for initializing decryption of this decrypUnit
+     */
+    virtual void initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* headerInfo) = 0;
+
+    /**
+     * Decrypt the protected content buffers for the given unit
+     * This method will be called any number of times, based on number of
+     * encrypted streams received from application.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     * @param[in] decryptUnitId ID which specifies decryption unit, such as track ID
+     * @param[in] encBuffer Encrypted data block
+     * @param[out] decBuffer Decrypted data block
+     * @return status_t
+     *     Returns the error code for this API
+     *     DRM_NO_ERROR for success, and one of DRM_ERROR_UNKNOWN, DRM_ERROR_LICENSE_EXPIRED
+     *     DRM_ERROR_SESSION_NOT_OPENED, DRM_ERROR_DECRYPT_UNIT_NOT_INITIALIZED,
+     *     DRM_ERROR_DECRYPT for failure.
+     */
+    virtual status_t decrypt(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* encBuffer, DrmBuffer** decBuffer) = 0;
+
+    /**
+     * Finalize decryption for the given unit of the protected content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     * @param[in] decryptUnitId ID which specifies decryption unit, such as track ID
+     */
+    virtual void finalizeDecryptUnit(
+            int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId) = 0;
+
+    /**
+     * Reads the specified number of bytes from an open DRM file.
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the decryption session
+     * @param[out] buffer Reference to the buffer that should receive the read data.
+     * @param[in] numBytes Number of bytes to read.
+     * @param[in] offset Offset with which to update the file position.
+     *
+     * @return Number of bytes read. Returns -1 for Failure.
+     */
+    virtual ssize_t pread(int uniqueId, DecryptHandle* decryptHandle,
+            void* buffer, ssize_t numBytes, off_t offset) = 0;
+};
+
+};
+
+#endif /* __IDRM_ENGINE_H__ */
+
diff --git a/drm/libdrmframework/plugins/passthru/Android.mk b/drm/libdrmframework/plugins/passthru/Android.mk
new file mode 100644
index 0000000..a7bbf23
--- /dev/null
+++ b/drm/libdrmframework/plugins/passthru/Android.mk
@@ -0,0 +1,44 @@
+#
+# Copyright (C) 2010 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.
+#
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+    src/DrmPassthruPlugIn.cpp
+
+LOCAL_MODULE := libdrmpassthruplugin
+
+LOCAL_STATIC_LIBRARIES := libdrmframeworkcommon
+
+LOCAL_SHARED_LIBRARIES := \
+    libutils \
+    libdl
+
+LOCAL_PRELINK_MODULE := false
+
+LOCAL_C_INCLUDES += \
+    $(TOP)/frameworks/base/drm/libdrmframework/include \
+    $(TOP)/frameworks/base/drm/libdrmframework/plugins/passthru/include \
+    $(TOP)/frameworks/base/drm/libdrmframework/plugins/common/include \
+    $(TOP)/frameworks/base/include
+
+# Set the following flag to enable the decryption passthru flow
+#LOCAL_CFLAGS += -DENABLE_PASSTHRU_DECRYPTION
+
+PRODUCT_COPY_FILES += \
+    $(TARGET_OUT_SHARED_LIBRARIES)/libdrmpassthruplugin.so:system/lib/drm/plugins/native/libdrmpassthruplugin.so
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/drm/libdrmframework/plugins/passthru/include/DrmPassthruPlugIn.h b/drm/libdrmframework/plugins/passthru/include/DrmPassthruPlugIn.h
new file mode 100644
index 0000000..d2c7852
--- /dev/null
+++ b/drm/libdrmframework/plugins/passthru/include/DrmPassthruPlugIn.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef __DRM_PASSTHRU_PLUGIN_H__
+#define __DRM_PASSTHRU_PLUGIN_H__
+
+#include <DrmEngineBase.h>
+
+namespace android {
+
+class DrmPassthruPlugIn : public DrmEngineBase {
+
+public:
+    DrmPassthruPlugIn();
+    virtual ~DrmPassthruPlugIn();
+
+protected:
+    DrmConstraints* onGetConstraints(int uniqueId, const String8* path, int action);
+
+    status_t onInitialize(int uniqueId);
+
+    status_t onSetOnInfoListener(int uniqueId, const IDrmEngine::OnInfoListener* infoListener);
+
+    status_t onTerminate(int uniqueId);
+
+    bool onCanHandle(int uniqueId, const String8& path);
+
+    DrmInfoStatus* onProcessDrmInfo(int uniqueId, const DrmInfo* drmInfo);
+
+    void onSaveRights(int uniqueId, const DrmRights& drmRights,
+            const String8& rightsPath, const String8& contentPath);
+
+    DrmInfo* onAcquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest);
+
+    String8 onGetOriginalMimeType(int uniqueId, const String8& path);
+
+    int onGetDrmObjectType(int uniqueId, const String8& path, const String8& mimeType);
+
+    int onCheckRightsStatus(int uniqueId, const String8& path, int action);
+
+    void onConsumeRights(int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve);
+
+    void onSetPlaybackStatus(
+            int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int position);
+
+    bool onValidateAction(
+            int uniqueId, const String8& path, int action, const ActionDescription& description);
+
+    void onRemoveRights(int uniqueId, const String8& path);
+
+    void onRemoveAllRights(int uniqueId);
+
+    void onOpenConvertSession(int uniqueId, int convertId);
+
+    DrmConvertedStatus* onConvertData(int uniqueId, int convertId, const DrmBuffer* inputData);
+
+    DrmConvertedStatus* onCloseConvertSession(int uniqueId, int convertId);
+
+    DrmSupportInfo* onGetSupportInfo(int uniqueId);
+
+    status_t onOpenDecryptSession(
+            int uniqueId, DecryptHandle* decryptHandle, int fd, int offset, int length);
+
+    void onCloseDecryptSession(int uniqueId, DecryptHandle* decryptHandle);
+
+     void onInitializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* headerInfo);
+
+     status_t onDecrypt(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* encBuffer, DrmBuffer** decBuffer);
+
+     void onFinalizeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId);
+
+    ssize_t onPread(int uniqueId, DecryptHandle* decryptHandle,
+            void* buffer, ssize_t numBytes, off_t offset);
+
+private:
+    DecryptHandle* openDecryptSessionImpl();
+};
+
+};
+
+#endif /* __DRM_PASSTHRU_PLUGIN_H__ */
+
diff --git a/drm/libdrmframework/plugins/passthru/src/DrmPassthruPlugIn.cpp b/drm/libdrmframework/plugins/passthru/src/DrmPassthruPlugIn.cpp
new file mode 100644
index 0000000..2655d0b
--- /dev/null
+++ b/drm/libdrmframework/plugins/passthru/src/DrmPassthruPlugIn.cpp
@@ -0,0 +1,280 @@
+/*
+ * Copyright (C) 2010 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_NDEBUG 0
+#define LOG_TAG "DrmPassthruPlugIn"
+#include <utils/Log.h>
+
+#include <drm/DrmRights.h>
+#include <drm/DrmConstraints.h>
+#include <drm/DrmInfo.h>
+#include <drm/DrmInfoEvent.h>
+#include <drm/DrmInfoStatus.h>
+#include <drm/DrmConvertedStatus.h>
+#include <drm/DrmInfoRequest.h>
+#include <drm/DrmSupportInfo.h>
+#include <DrmPassthruPlugIn.h>
+
+using namespace android;
+
+
+// This extern "C" is mandatory to be managed by TPlugInManager
+extern "C" IDrmEngine* create() {
+    return new DrmPassthruPlugIn();
+}
+
+// This extern "C" is mandatory to be managed by TPlugInManager
+extern "C" void destroy(IDrmEngine* pPlugIn) {
+    delete pPlugIn;
+    pPlugIn = NULL;
+}
+
+DrmPassthruPlugIn::DrmPassthruPlugIn()
+    : DrmEngineBase() {
+
+}
+
+DrmPassthruPlugIn::~DrmPassthruPlugIn() {
+
+}
+
+DrmConstraints* DrmPassthruPlugIn::onGetConstraints(
+        int uniqueId, const String8* path, int action) {
+    LOGD("DrmPassthruPlugIn::onGetConstraints From Path: %d", uniqueId);
+    DrmConstraints* drmConstraints = new DrmConstraints();
+
+    String8 value("dummy_available_time");
+    char* charValue = NULL;
+    charValue = new char[value.length() + 1];
+    strncpy(charValue, value.string(), value.length());
+
+    //Just add dummy available time for verification
+    drmConstraints->put(&(DrmConstraints::LICENSE_AVAILABLE_TIME), charValue);
+
+    return drmConstraints;
+}
+
+DrmInfoStatus* DrmPassthruPlugIn::onProcessDrmInfo(int uniqueId, const DrmInfo* drmInfo) {
+    LOGD("DrmPassthruPlugIn::onProcessDrmInfo - Enter : %d", uniqueId);
+    DrmInfoStatus* drmInfoStatus = NULL;
+    if (NULL != drmInfo) {
+        switch (drmInfo->getInfoType()) {
+        case DrmInfoRequest::TYPE_REGISTRATION_INFO: {
+            const DrmBuffer* emptyBuffer = new DrmBuffer();
+            drmInfoStatus
+                = new DrmInfoStatus(DrmInfoStatus::STATUS_OK, emptyBuffer, drmInfo->getMimeType());
+            break;
+        }
+        case DrmInfoRequest::TYPE_UNREGISTRATION_INFO: {
+            const DrmBuffer* emptyBuffer = new DrmBuffer();
+            drmInfoStatus
+                = new DrmInfoStatus(DrmInfoStatus::STATUS_OK, emptyBuffer, drmInfo->getMimeType());
+            break;
+        }
+        case DrmInfoRequest::TYPE_RIGHTS_ACQUISITION_INFO: {
+            String8 licenseString("dummy_license_string");
+            const int bufferSize = licenseString.size();
+            char* data = NULL;
+            data = new char[bufferSize];
+            memcpy(data, licenseString.string(), bufferSize);
+            const DrmBuffer* buffer = new DrmBuffer(data, bufferSize);
+            drmInfoStatus
+                = new DrmInfoStatus(DrmInfoStatus::STATUS_OK, buffer, drmInfo->getMimeType());
+            break;
+        }
+        }
+    }
+    LOGD("DrmPassthruPlugIn::onProcessDrmInfo - Exit");
+    return drmInfoStatus;
+}
+
+status_t DrmPassthruPlugIn::onSetOnInfoListener(
+            int uniqueId, const IDrmEngine::OnInfoListener* infoListener) {
+    LOGD("DrmPassthruPlugIn::onSetOnInfoListener : %d", uniqueId);
+    return DRM_NO_ERROR;
+}
+
+status_t DrmPassthruPlugIn::onInitialize(int uniqueId) {
+    LOGD("DrmPassthruPlugIn::onInitialize : %d", uniqueId);
+    return DRM_NO_ERROR;
+}
+
+status_t DrmPassthruPlugIn::onTerminate(int uniqueId) {
+    LOGD("DrmPassthruPlugIn::onTerminate : %d", uniqueId);
+    return DRM_NO_ERROR;
+}
+
+DrmSupportInfo* DrmPassthruPlugIn::onGetSupportInfo(int uniqueId) {
+    LOGD("DrmPassthruPlugIn::onGetSupportInfo : %d", uniqueId);
+    DrmSupportInfo* drmSupportInfo = new DrmSupportInfo();
+    // Add mimetype's
+    drmSupportInfo->addMimeType(String8("application/vnd.passthru.drm"));
+    // Add File Suffixes
+    drmSupportInfo->addFileSuffix(String8(".passthru"));
+    // Add plug-in description
+    drmSupportInfo->setDescription(String8("Passthru plug-in"));
+    return drmSupportInfo;
+}
+
+void DrmPassthruPlugIn::onSaveRights(int uniqueId, const DrmRights& drmRights,
+            const String8& rightsPath, const String8& contentPath) {
+    LOGD("DrmPassthruPlugIn::onSaveRights : %d", uniqueId);
+}
+
+DrmInfo* DrmPassthruPlugIn::onAcquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest) {
+    LOGD("DrmPassthruPlugIn::onAcquireDrmInfo : %d", uniqueId);
+    DrmInfo* drmInfo = NULL;
+
+    if (NULL != drmInfoRequest) {
+        String8 dataString("dummy_acquistion_string");
+        int length = dataString.length();
+        char* data = NULL;
+        data = new char[length];
+        memcpy(data, dataString.string(), length);
+        drmInfo = new DrmInfo(drmInfoRequest->getInfoType(),
+            DrmBuffer(data, length), drmInfoRequest->getMimeType());
+    }
+    return drmInfo;
+}
+
+bool DrmPassthruPlugIn::onCanHandle(int uniqueId, const String8& path) {
+    LOGD("DrmPassthruPlugIn::canHandle: %s ", path.string());
+    String8 extension = path.getPathExtension();
+    extension.toLower();
+    return (String8(".passthru") == extension);
+}
+
+String8 DrmPassthruPlugIn::onGetOriginalMimeType(int uniqueId, const String8& path) {
+    LOGD("DrmPassthruPlugIn::onGetOriginalMimeType() : %d", uniqueId);
+    return String8("video/passthru");
+}
+
+int DrmPassthruPlugIn::onGetDrmObjectType(
+            int uniqueId, const String8& path, const String8& mimeType) {
+    LOGD("DrmPassthruPlugIn::onGetDrmObjectType() : %d", uniqueId);
+    return DrmObjectType::UNKNOWN;
+}
+
+int DrmPassthruPlugIn::onCheckRightsStatus(int uniqueId, const String8& path, int action) {
+    LOGD("DrmPassthruPlugIn::onCheckRightsStatus() : %d", uniqueId);
+    int rightsStatus = RightsStatus::RIGHTS_VALID;
+    return rightsStatus;
+}
+
+void DrmPassthruPlugIn::onConsumeRights(int uniqueId, DecryptHandle* decryptHandle,
+            int action, bool reserve) {
+    LOGD("DrmPassthruPlugIn::onConsumeRights() : %d", uniqueId);
+}
+
+void DrmPassthruPlugIn::onSetPlaybackStatus(int uniqueId, DecryptHandle* decryptHandle,
+            int playbackStatus, int position) {
+    LOGD("DrmPassthruPlugIn::onSetPlaybackStatus() : %d", uniqueId);
+}
+
+bool DrmPassthruPlugIn::onValidateAction(int uniqueId, const String8& path,
+            int action, const ActionDescription& description) {
+    LOGD("DrmPassthruPlugIn::onValidateAction() : %d", uniqueId);
+    return true;
+}
+
+void DrmPassthruPlugIn::onRemoveRights(int uniqueId, const String8& path) {
+    LOGD("DrmPassthruPlugIn::onRemoveRights() : %d", uniqueId);
+}
+
+void DrmPassthruPlugIn::onRemoveAllRights(int uniqueId) {
+    LOGD("DrmPassthruPlugIn::onRemoveAllRights() : %d", uniqueId);
+}
+
+void DrmPassthruPlugIn::onOpenConvertSession(int uniqueId, int convertId) {
+    LOGD("DrmPassthruPlugIn::onOpenConvertSession() : %d", uniqueId);
+}
+
+DrmConvertedStatus* DrmPassthruPlugIn::onConvertData(
+            int uniqueId, int convertId, const DrmBuffer* inputData) {
+    LOGD("DrmPassthruPlugIn::onConvertData() : %d", uniqueId);
+    DrmBuffer* convertedData = NULL;
+
+    if (NULL != inputData && 0 < inputData->length) {
+        int length = inputData->length;
+        char* data = NULL;
+        data = new char[length];
+        convertedData = new DrmBuffer(data, length);
+        memcpy(convertedData->data, inputData->data, length);
+    }
+    return new DrmConvertedStatus(DrmConvertedStatus::STATUS_OK, convertedData, 0 /*offset*/);
+}
+
+DrmConvertedStatus* DrmPassthruPlugIn::onCloseConvertSession(int uniqueId, int convertId) {
+    LOGD("DrmPassthruPlugIn::onCloseConvertSession() : %d", uniqueId);
+    return new DrmConvertedStatus(DrmConvertedStatus::STATUS_OK, NULL, 0 /*offset*/);
+}
+
+status_t DrmPassthruPlugIn::onOpenDecryptSession(
+            int uniqueId, DecryptHandle* decryptHandle, int fd, int offset, int length) {
+    LOGD("DrmPassthruPlugIn::onOpenDecryptSession() : %d", uniqueId);
+
+#ifdef ENABLE_PASSTHRU_DECRYPTION
+    decryptHandle->mimeType = String8("video/passthru");
+    decryptHandle->decryptApiType = DecryptApiType::ELEMENTARY_STREAM_BASED;
+    decryptHandle->status = DRM_NO_ERROR;
+    decryptHandle->decryptInfo = NULL;
+    return DRM_NO_ERROR;
+#endif
+
+    return DRM_ERROR_CANNOT_HANDLE;
+}
+
+void DrmPassthruPlugIn::onCloseDecryptSession(int uniqueId, DecryptHandle* decryptHandle) {
+    LOGD("DrmPassthruPlugIn::onCloseDecryptSession() : %d", uniqueId);
+    if (NULL != decryptHandle) {
+        if (NULL != decryptHandle->decryptInfo) {
+            delete decryptHandle->decryptInfo; decryptHandle->decryptInfo = NULL;
+        }
+        delete decryptHandle; decryptHandle = NULL;
+    }
+}
+
+void DrmPassthruPlugIn::onInitializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* headerInfo) {
+    LOGD("DrmPassthruPlugIn::onInitializeDecryptUnit() : %d", uniqueId);
+}
+
+status_t DrmPassthruPlugIn::onDecrypt(int uniqueId, DecryptHandle* decryptHandle,
+            int decryptUnitId, const DrmBuffer* encBuffer, DrmBuffer** decBuffer) {
+    LOGD("DrmPassthruPlugIn::onDecrypt() : %d", uniqueId);
+    /**
+     * As a workaround implementation passthru would copy the given
+     * encrypted buffer as it is to decrypted buffer. Note, decBuffer
+     * memory has to be allocated by the caller.
+     */
+    if (NULL != (*decBuffer) && 0 < (*decBuffer)->length) {
+        memcpy((*decBuffer)->data, encBuffer->data, encBuffer->length);
+        (*decBuffer)->length = encBuffer->length;
+    }
+    return DRM_NO_ERROR;
+}
+
+void DrmPassthruPlugIn::onFinalizeDecryptUnit(
+            int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId) {
+    LOGD("DrmPassthruPlugIn::onFinalizeDecryptUnit() : %d", uniqueId);
+}
+
+ssize_t DrmPassthruPlugIn::onPread(int uniqueId, DecryptHandle* decryptHandle,
+            void* buffer, ssize_t numBytes, off_t offset) {
+    LOGD("DrmPassthruPlugIn::onPread() : %d", uniqueId);
+    return 0;
+}
+