drm/drmserver/DrmManagerService.cpp - platform/frameworks/base - Gitiles

 /*
  * 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 "DrmManagerService(Native)"
 #include <utils/Log.h>

 #include <private/android_filesystem_config.h>
 #include <media/MemoryLeakTrackUtil.h>

 #include <errno.h>
 #include <utils/threads.h>
 #include <binder/IServiceManager.h>
 #include <binder/IPCThreadState.h>
 #include <sys/stat.h>
 #include "DrmManagerService.h"
 #include "DrmManager.h"

 using namespace android;

 static Vector<uid_t> trustedUids;

 static bool isProtectedCallAllowed() {
     // TODO
     // Following implementation is just for reference.
     // Each OEM manufacturer should implement/replace with their own solutions.
     bool result = false;

     IPCThreadState* ipcState = IPCThreadState::self();
     uid_t uid = ipcState->getCallingUid();

     for (unsigned int i = 0; i < trustedUids.size(); ++i) {
         if (trustedUids[i] == uid) {
             result = true;
             break;
         }
     }
     return result;
 }

 void DrmManagerService::instantiate() {
     LOGV("instantiate");
     defaultServiceManager()->addService(String16("drm.drmManager"), new DrmManagerService());

     if (0 >= trustedUids.size()) {
         // TODO
         // Following implementation is just for reference.
         // Each OEM manufacturer should implement/replace with their own solutions.

         // Add trusted uids here
         trustedUids.push(AID_MEDIA);
     }
 }

 DrmManagerService::DrmManagerService() :
         mDrmManager(NULL) {
     LOGV("created");
     mDrmManager = new DrmManager();
     mDrmManager->loadPlugIns();
 }

 DrmManagerService::~DrmManagerService() {
     LOGV("Destroyed");
     mDrmManager->unloadPlugIns();
     delete mDrmManager; mDrmManager = NULL;
 }

 int DrmManagerService::addUniqueId(int uniqueId) {
     return mDrmManager->addUniqueId(uniqueId);
 }

 void DrmManagerService::removeUniqueId(int uniqueId) {
     mDrmManager->removeUniqueId(uniqueId);
 }

 void DrmManagerService::addClient(int uniqueId) {
     mDrmManager->addClient(uniqueId);
 }

 void DrmManagerService::removeClient(int uniqueId) {
     mDrmManager->removeClient(uniqueId);
 }

 status_t DrmManagerService::setDrmServiceListener(
             int uniqueId, const sp<IDrmServiceListener>& drmServiceListener) {
     LOGV("Entering setDrmServiceListener");
     mDrmManager->setDrmServiceListener(uniqueId, drmServiceListener);
     return DRM_NO_ERROR;
 }

 status_t DrmManagerService::installDrmEngine(int uniqueId, const String8& drmEngineFile) {
     LOGV("Entering installDrmEngine");
     return mDrmManager->installDrmEngine(uniqueId, drmEngineFile);
 }

 DrmConstraints* DrmManagerService::getConstraints(
             int uniqueId, const String8* path, const int action) {
     LOGV("Entering getConstraints from content");
     return mDrmManager->getConstraints(uniqueId, path, action);
 }

 DrmMetadata* DrmManagerService::getMetadata(int uniqueId, const String8* path) {
     LOGV("Entering getMetadata from content");
     return mDrmManager->getMetadata(uniqueId, path);
 }

 bool DrmManagerService::canHandle(int uniqueId, const String8& path, const String8& mimeType) {
     LOGV("Entering canHandle");
     return mDrmManager->canHandle(uniqueId, path, mimeType);
 }

 DrmInfoStatus* DrmManagerService::processDrmInfo(int uniqueId, const DrmInfo* drmInfo) {
     LOGV("Entering processDrmInfo");
     return mDrmManager->processDrmInfo(uniqueId, drmInfo);
 }

 DrmInfo* DrmManagerService::acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest) {
     LOGV("Entering acquireDrmInfo");
     return mDrmManager->acquireDrmInfo(uniqueId, drmInfoRequest);
 }

 status_t DrmManagerService::saveRights(
             int uniqueId, const DrmRights& drmRights,
             const String8& rightsPath, const String8& contentPath) {
     LOGV("Entering saveRights");
     return mDrmManager->saveRights(uniqueId, drmRights, rightsPath, contentPath);
 }

 String8 DrmManagerService::getOriginalMimeType(int uniqueId, const String8& path) {
     LOGV("Entering getOriginalMimeType");
     return mDrmManager->getOriginalMimeType(uniqueId, path);
 }

 int DrmManagerService::getDrmObjectType(
            int uniqueId, const String8& path, const String8& mimeType) {
     LOGV("Entering getDrmObjectType");
     return mDrmManager->getDrmObjectType(uniqueId, path, mimeType);
 }

 int DrmManagerService::checkRightsStatus(
             int uniqueId, const String8& path, int action) {
     LOGV("Entering checkRightsStatus");
     return mDrmManager->checkRightsStatus(uniqueId, path, action);
 }

 status_t DrmManagerService::consumeRights(
             int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve) {
     LOGV("Entering consumeRights");
     return mDrmManager->consumeRights(uniqueId, decryptHandle, action, reserve);
 }

 status_t DrmManagerService::setPlaybackStatus(
             int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int64_t position) {
     LOGV("Entering setPlaybackStatus");
     return mDrmManager->setPlaybackStatus(uniqueId, decryptHandle, playbackStatus, position);
 }

 bool DrmManagerService::validateAction(
             int uniqueId, const String8& path,
             int action, const ActionDescription& description) {
     LOGV("Entering validateAction");
     return mDrmManager->validateAction(uniqueId, path, action, description);
 }

 status_t DrmManagerService::removeRights(int uniqueId, const String8& path) {
     LOGV("Entering removeRights");
     return mDrmManager->removeRights(uniqueId, path);
 }

 status_t DrmManagerService::removeAllRights(int uniqueId) {
     LOGV("Entering removeAllRights");
     return mDrmManager->removeAllRights(uniqueId);
 }

 int DrmManagerService::openConvertSession(int uniqueId, const String8& mimeType) {
     LOGV("Entering openConvertSession");
     return mDrmManager->openConvertSession(uniqueId, mimeType);
 }

 DrmConvertedStatus* DrmManagerService::convertData(
             int uniqueId, int convertId, const DrmBuffer* inputData) {
     LOGV("Entering convertData");
     return mDrmManager->convertData(uniqueId, convertId, inputData);
 }

 DrmConvertedStatus* DrmManagerService::closeConvertSession(int uniqueId, int convertId) {
     LOGV("Entering closeConvertSession");
     return mDrmManager->closeConvertSession(uniqueId, convertId);
 }

 status_t DrmManagerService::getAllSupportInfo(
             int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray) {
     LOGV("Entering getAllSupportInfo");
     return mDrmManager->getAllSupportInfo(uniqueId, length, drmSupportInfoArray);
 }

 DecryptHandle* DrmManagerService::openDecryptSession(
             int uniqueId, int fd, off64_t offset, off64_t length) {
     LOGV("Entering DrmManagerService::openDecryptSession");
     if (isProtectedCallAllowed()) {
         return mDrmManager->openDecryptSession(uniqueId, fd, offset, length);
     }

     return NULL;
 }

 DecryptHandle* DrmManagerService::openDecryptSession(
             int uniqueId, const char* uri) {
     LOGV("Entering DrmManagerService::openDecryptSession with uri");
     if (isProtectedCallAllowed()) {
         return mDrmManager->openDecryptSession(uniqueId, uri);
     }

     return NULL;
 }

 status_t DrmManagerService::closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle) {
     LOGV("Entering closeDecryptSession");
     return mDrmManager->closeDecryptSession(uniqueId, decryptHandle);
 }

 status_t DrmManagerService::initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
             int decryptUnitId, const DrmBuffer* headerInfo) {
     LOGV("Entering initializeDecryptUnit");
     return mDrmManager->initializeDecryptUnit(uniqueId,decryptHandle, decryptUnitId, headerInfo);
 }

 status_t DrmManagerService::decrypt(
             int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId,
             const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* IV) {
     LOGV("Entering decrypt");
     return mDrmManager->decrypt(uniqueId, decryptHandle, decryptUnitId, encBuffer, decBuffer, IV);
 }

 status_t DrmManagerService::finalizeDecryptUnit(
             int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId) {
     LOGV("Entering finalizeDecryptUnit");
     return mDrmManager->finalizeDecryptUnit(uniqueId, decryptHandle, decryptUnitId);
 }

 ssize_t DrmManagerService::pread(int uniqueId, DecryptHandle* decryptHandle,
             void* buffer, ssize_t numBytes, off64_t offset) {
     LOGV("Entering pread");
     return mDrmManager->pread(uniqueId, decryptHandle, buffer, numBytes, offset);
 }

 status_t DrmManagerService::dump(int fd, const Vector<String16>& args)
 {
     const size_t SIZE = 256;
     char buffer[SIZE];
     String8 result;
     if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
         snprintf(buffer, SIZE, "Permission Denial: "
                 "can't dump DrmManagerService from pid=%d, uid=%d\n",
                 IPCThreadState::self()->getCallingPid(),
                 IPCThreadState::self()->getCallingUid());
         result.append(buffer);
     } else {
 #if DRM_MEMORY_LEAK_TRACK
         bool dumpMem = false;
         for (size_t i = 0; i < args.size(); i++) {
             if (args[i] == String16("-m")) {
                 dumpMem = true;
             }
         }
         if (dumpMem) {
             dumpMemoryAddresses(fd);
         }
 #endif
     }
     write(fd, result.string(), result.size());
     return NO_ERROR;
 }
	/*
	* 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 "DrmManagerService(Native)"
	#include <utils/Log.h>

	#include <private/android_filesystem_config.h>
	#include <media/MemoryLeakTrackUtil.h>

	#include <errno.h>
	#include <utils/threads.h>
	#include <binder/IServiceManager.h>
	#include <binder/IPCThreadState.h>
	#include <sys/stat.h>
	#include "DrmManagerService.h"
	#include "DrmManager.h"

	using namespace android;

	static Vector<uid_t> trustedUids;

	static bool isProtectedCallAllowed() {
	// TODO
	// Following implementation is just for reference.
	// Each OEM manufacturer should implement/replace with their own solutions.
	bool result = false;

	IPCThreadState* ipcState = IPCThreadState::self();
	uid_t uid = ipcState->getCallingUid();

	for (unsigned int i = 0; i < trustedUids.size(); ++i) {
	if (trustedUids[i] == uid) {
	result = true;
	break;
	}
	}
	return result;
	}

	void DrmManagerService::instantiate() {
	LOGV("instantiate");
	defaultServiceManager()->addService(String16("drm.drmManager"), new DrmManagerService());

	if (0 >= trustedUids.size()) {
	// TODO
	// Following implementation is just for reference.
	// Each OEM manufacturer should implement/replace with their own solutions.

	// Add trusted uids here
	trustedUids.push(AID_MEDIA);
	}
	}

	DrmManagerService::DrmManagerService() :
	mDrmManager(NULL) {
	LOGV("created");
	mDrmManager = new DrmManager();
	mDrmManager->loadPlugIns();
	}

	DrmManagerService::~DrmManagerService() {
	LOGV("Destroyed");
	mDrmManager->unloadPlugIns();
	delete mDrmManager; mDrmManager = NULL;
	}

	int DrmManagerService::addUniqueId(int uniqueId) {
	return mDrmManager->addUniqueId(uniqueId);
	}

	void DrmManagerService::removeUniqueId(int uniqueId) {
	mDrmManager->removeUniqueId(uniqueId);
	}

	void DrmManagerService::addClient(int uniqueId) {
	mDrmManager->addClient(uniqueId);
	}

	void DrmManagerService::removeClient(int uniqueId) {
	mDrmManager->removeClient(uniqueId);
	}

	status_t DrmManagerService::setDrmServiceListener(
	int uniqueId, const sp<IDrmServiceListener>& drmServiceListener) {
	LOGV("Entering setDrmServiceListener");
	mDrmManager->setDrmServiceListener(uniqueId, drmServiceListener);
	return DRM_NO_ERROR;
	}

	status_t DrmManagerService::installDrmEngine(int uniqueId, const String8& drmEngineFile) {
	LOGV("Entering installDrmEngine");
	return mDrmManager->installDrmEngine(uniqueId, drmEngineFile);
	}

	DrmConstraints* DrmManagerService::getConstraints(
	int uniqueId, const String8* path, const int action) {
	LOGV("Entering getConstraints from content");
	return mDrmManager->getConstraints(uniqueId, path, action);
	}

	DrmMetadata* DrmManagerService::getMetadata(int uniqueId, const String8* path) {
	LOGV("Entering getMetadata from content");
	return mDrmManager->getMetadata(uniqueId, path);
	}

	bool DrmManagerService::canHandle(int uniqueId, const String8& path, const String8& mimeType) {
	LOGV("Entering canHandle");
	return mDrmManager->canHandle(uniqueId, path, mimeType);
	}

	DrmInfoStatus* DrmManagerService::processDrmInfo(int uniqueId, const DrmInfo* drmInfo) {
	LOGV("Entering processDrmInfo");
	return mDrmManager->processDrmInfo(uniqueId, drmInfo);
	}

	DrmInfo* DrmManagerService::acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest) {
	LOGV("Entering acquireDrmInfo");
	return mDrmManager->acquireDrmInfo(uniqueId, drmInfoRequest);
	}

	status_t DrmManagerService::saveRights(
	int uniqueId, const DrmRights& drmRights,
	const String8& rightsPath, const String8& contentPath) {
	LOGV("Entering saveRights");
	return mDrmManager->saveRights(uniqueId, drmRights, rightsPath, contentPath);
	}

	String8 DrmManagerService::getOriginalMimeType(int uniqueId, const String8& path) {
	LOGV("Entering getOriginalMimeType");
	return mDrmManager->getOriginalMimeType(uniqueId, path);
	}

	int DrmManagerService::getDrmObjectType(
	int uniqueId, const String8& path, const String8& mimeType) {
	LOGV("Entering getDrmObjectType");
	return mDrmManager->getDrmObjectType(uniqueId, path, mimeType);
	}

	int DrmManagerService::checkRightsStatus(
	int uniqueId, const String8& path, int action) {
	LOGV("Entering checkRightsStatus");
	return mDrmManager->checkRightsStatus(uniqueId, path, action);
	}

	status_t DrmManagerService::consumeRights(
	int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve) {
	LOGV("Entering consumeRights");
	return mDrmManager->consumeRights(uniqueId, decryptHandle, action, reserve);
	}

	status_t DrmManagerService::setPlaybackStatus(
	int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int64_t position) {
	LOGV("Entering setPlaybackStatus");
	return mDrmManager->setPlaybackStatus(uniqueId, decryptHandle, playbackStatus, position);
	}

	bool DrmManagerService::validateAction(
	int uniqueId, const String8& path,
	int action, const ActionDescription& description) {
	LOGV("Entering validateAction");
	return mDrmManager->validateAction(uniqueId, path, action, description);
	}

	status_t DrmManagerService::removeRights(int uniqueId, const String8& path) {
	LOGV("Entering removeRights");
	return mDrmManager->removeRights(uniqueId, path);
	}

	status_t DrmManagerService::removeAllRights(int uniqueId) {
	LOGV("Entering removeAllRights");
	return mDrmManager->removeAllRights(uniqueId);
	}

	int DrmManagerService::openConvertSession(int uniqueId, const String8& mimeType) {
	LOGV("Entering openConvertSession");
	return mDrmManager->openConvertSession(uniqueId, mimeType);
	}

	DrmConvertedStatus* DrmManagerService::convertData(
	int uniqueId, int convertId, const DrmBuffer* inputData) {
	LOGV("Entering convertData");
	return mDrmManager->convertData(uniqueId, convertId, inputData);
	}

	DrmConvertedStatus* DrmManagerService::closeConvertSession(int uniqueId, int convertId) {
	LOGV("Entering closeConvertSession");
	return mDrmManager->closeConvertSession(uniqueId, convertId);
	}

	status_t DrmManagerService::getAllSupportInfo(
	int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray) {
	LOGV("Entering getAllSupportInfo");
	return mDrmManager->getAllSupportInfo(uniqueId, length, drmSupportInfoArray);
	}

	DecryptHandle* DrmManagerService::openDecryptSession(
	int uniqueId, int fd, off64_t offset, off64_t length) {
	LOGV("Entering DrmManagerService::openDecryptSession");
	if (isProtectedCallAllowed()) {
	return mDrmManager->openDecryptSession(uniqueId, fd, offset, length);
	}

	return NULL;
	}

	DecryptHandle* DrmManagerService::openDecryptSession(
	int uniqueId, const char* uri) {
	LOGV("Entering DrmManagerService::openDecryptSession with uri");
	if (isProtectedCallAllowed()) {
	return mDrmManager->openDecryptSession(uniqueId, uri);
	}

	return NULL;
	}

	status_t DrmManagerService::closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle) {
	LOGV("Entering closeDecryptSession");
	return mDrmManager->closeDecryptSession(uniqueId, decryptHandle);
	}

	status_t DrmManagerService::initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
	int decryptUnitId, const DrmBuffer* headerInfo) {
	LOGV("Entering initializeDecryptUnit");
	return mDrmManager->initializeDecryptUnit(uniqueId,decryptHandle, decryptUnitId, headerInfo);
	}

	status_t DrmManagerService::decrypt(
	int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId,
	const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* IV) {
	LOGV("Entering decrypt");
	return mDrmManager->decrypt(uniqueId, decryptHandle, decryptUnitId, encBuffer, decBuffer, IV);
	}

	status_t DrmManagerService::finalizeDecryptUnit(
	int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId) {
	LOGV("Entering finalizeDecryptUnit");
	return mDrmManager->finalizeDecryptUnit(uniqueId, decryptHandle, decryptUnitId);
	}

	ssize_t DrmManagerService::pread(int uniqueId, DecryptHandle* decryptHandle,
	void* buffer, ssize_t numBytes, off64_t offset) {
	LOGV("Entering pread");
	return mDrmManager->pread(uniqueId, decryptHandle, buffer, numBytes, offset);
	}

	status_t DrmManagerService::dump(int fd, const Vector<String16>& args)
	{
	const size_t SIZE = 256;
	char buffer[SIZE];
	String8 result;
	if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
	snprintf(buffer, SIZE, "Permission Denial: "
	"can't dump DrmManagerService from pid=%d, uid=%d\n",
	IPCThreadState::self()->getCallingPid(),
	IPCThreadState::self()->getCallingUid());
	result.append(buffer);
	} else {
	#if DRM_MEMORY_LEAK_TRACK
	bool dumpMem = false;
	for (size_t i = 0; i < args.size(); i++) {
	if (args[i] == String16("-m")) {
	dumpMem = true;
	}
	}
	if (dumpMem) {
	dumpMemoryAddresses(fd);
	}
	#endif
	}
	write(fd, result.string(), result.size());
	return NO_ERROR;
	}