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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 //#define LOG_NDEBUG 0
     18 #define LOG_TAG "DrmManagerClientImpl(Native)"
     19 #include <utils/Log.h>
     20 
     21 #include <utils/String8.h>
     22 #include <utils/Vector.h>
     23 #include <binder/IServiceManager.h>
     24 
     25 #include "DrmManagerClientImpl.h"
     26 
     27 using namespace android;
     28 
     29 #define INVALID_VALUE -1
     30 
     31 Mutex DrmManagerClientImpl::sMutex;
     32 sp<IDrmManagerService> DrmManagerClientImpl::sDrmManagerService;
     33 sp<DrmManagerClientImpl::DeathNotifier> DrmManagerClientImpl::sDeathNotifier;
     34 const String8 DrmManagerClientImpl::EMPTY_STRING("");
     35 
     36 DrmManagerClientImpl* DrmManagerClientImpl::create(
     37         int* pUniqueId, bool isNative) {
     38     *pUniqueId = getDrmManagerService()->addUniqueId(isNative);
     39 
     40     return new DrmManagerClientImpl();
     41 }
     42 
     43 void DrmManagerClientImpl::remove(int uniqueId) {
     44     getDrmManagerService()->removeUniqueId(uniqueId);
     45 }
     46 
     47 const sp<IDrmManagerService>& DrmManagerClientImpl::getDrmManagerService() {
     48     Mutex::Autolock lock(sMutex);
     49     if (NULL == sDrmManagerService.get()) {
     50         sp<IServiceManager> sm = defaultServiceManager();
     51         sp<IBinder> binder;
     52         do {
     53             binder = sm->getService(String16("drm.drmManager"));
     54             if (binder != 0) {
     55                 break;
     56             }
     57             ALOGW("DrmManagerService not published, waiting...");
     58             struct timespec reqt;
     59             reqt.tv_sec  = 0;
     60             reqt.tv_nsec = 500000000; //0.5 sec
     61             nanosleep(&reqt, NULL);
     62         } while (true);
     63         if (NULL == sDeathNotifier.get()) {
     64             sDeathNotifier = new DeathNotifier();
     65         }
     66         binder->linkToDeath(sDeathNotifier);
     67         sDrmManagerService = interface_cast<IDrmManagerService>(binder);
     68     }
     69     return sDrmManagerService;
     70 }
     71 
     72 void DrmManagerClientImpl::addClient(int uniqueId) {
     73     getDrmManagerService()->addClient(uniqueId);
     74 }
     75 
     76 void DrmManagerClientImpl::removeClient(int uniqueId) {
     77     getDrmManagerService()->removeClient(uniqueId);
     78 }
     79 
     80 status_t DrmManagerClientImpl::setOnInfoListener(
     81             int uniqueId,
     82             const sp<DrmManagerClient::OnInfoListener>& infoListener) {
     83     Mutex::Autolock _l(mLock);
     84     mOnInfoListener = infoListener;
     85     return getDrmManagerService()->setDrmServiceListener(uniqueId,
     86             (NULL != infoListener.get()) ? this : NULL);
     87 }
     88 
     89 DrmConstraints* DrmManagerClientImpl::getConstraints(
     90         int uniqueId, const String8* path, const int action) {
     91     DrmConstraints *drmConstraints = NULL;
     92     if ((NULL != path) && (EMPTY_STRING != *path)) {
     93         drmConstraints =
     94             getDrmManagerService()->getConstraints(uniqueId, path, action);
     95     }
     96     return drmConstraints;
     97 }
     98 
     99 DrmMetadata* DrmManagerClientImpl::getMetadata(int uniqueId, const String8* path) {
    100     DrmMetadata *drmMetadata = NULL;
    101     if ((NULL != path) && (EMPTY_STRING != *path)) {
    102         drmMetadata = getDrmManagerService()->getMetadata(uniqueId, path);
    103     }
    104     return drmMetadata;
    105 }
    106 
    107 bool DrmManagerClientImpl::canHandle(
    108         int uniqueId, const String8& path, const String8& mimeType) {
    109     bool retCode = false;
    110     if ((EMPTY_STRING != path) || (EMPTY_STRING != mimeType)) {
    111         retCode = getDrmManagerService()->canHandle(uniqueId, path, mimeType);
    112     }
    113     return retCode;
    114 }
    115 
    116 DrmInfoStatus* DrmManagerClientImpl::processDrmInfo(
    117         int uniqueId, const DrmInfo* drmInfo) {
    118     DrmInfoStatus *drmInfoStatus = NULL;
    119     if (NULL != drmInfo) {
    120         drmInfoStatus = getDrmManagerService()->processDrmInfo(uniqueId, drmInfo);
    121     }
    122     return drmInfoStatus;
    123 }
    124 
    125 DrmInfo* DrmManagerClientImpl::acquireDrmInfo(
    126         int uniqueId, const DrmInfoRequest* drmInfoRequest) {
    127     DrmInfo* drmInfo = NULL;
    128     if (NULL != drmInfoRequest) {
    129         drmInfo = getDrmManagerService()->acquireDrmInfo(uniqueId, drmInfoRequest);
    130     }
    131     return drmInfo;
    132 }
    133 
    134 status_t DrmManagerClientImpl::saveRights(int uniqueId, const DrmRights& drmRights,
    135             const String8& rightsPath, const String8& contentPath) {
    136     return getDrmManagerService()->saveRights(
    137                 uniqueId, drmRights, rightsPath, contentPath);
    138 }
    139 
    140 String8 DrmManagerClientImpl::getOriginalMimeType(
    141         int uniqueId, const String8& path, int fd) {
    142     String8 mimeType = EMPTY_STRING;
    143     if (EMPTY_STRING != path) {
    144         mimeType = getDrmManagerService()->getOriginalMimeType(uniqueId, path, fd);
    145     }
    146     return mimeType;
    147 }
    148 
    149 int DrmManagerClientImpl::getDrmObjectType(
    150             int uniqueId, const String8& path, const String8& mimeType) {
    151     int drmOjectType = DrmObjectType::UNKNOWN;
    152     if ((EMPTY_STRING != path) || (EMPTY_STRING != mimeType)) {
    153          drmOjectType =
    154              getDrmManagerService()->getDrmObjectType(uniqueId, path, mimeType);
    155     }
    156     return drmOjectType;
    157 }
    158 
    159 int DrmManagerClientImpl::checkRightsStatus(
    160             int uniqueId, const String8& path, int action) {
    161     int rightsStatus = RightsStatus::RIGHTS_INVALID;
    162     if (EMPTY_STRING != path) {
    163         rightsStatus =
    164             getDrmManagerService()->checkRightsStatus(uniqueId, path, action);
    165     }
    166     return rightsStatus;
    167 }
    168 
    169 status_t DrmManagerClientImpl::consumeRights(
    170             int uniqueId, sp<DecryptHandle> &decryptHandle,
    171             int action, bool reserve) {
    172     status_t status = DRM_ERROR_UNKNOWN;
    173     if (NULL != decryptHandle.get()) {
    174         status = getDrmManagerService()->consumeRights(
    175                 uniqueId, decryptHandle.get(), action, reserve);
    176     }
    177     return status;
    178 }
    179 
    180 status_t DrmManagerClientImpl::setPlaybackStatus(
    181             int uniqueId, sp<DecryptHandle> &decryptHandle,
    182             int playbackStatus, int64_t position) {
    183     status_t status = DRM_ERROR_UNKNOWN;
    184     if (NULL != decryptHandle.get()) {
    185         status = getDrmManagerService()->setPlaybackStatus(
    186                 uniqueId, decryptHandle.get(), playbackStatus, position);
    187     }
    188     return status;
    189 }
    190 
    191 bool DrmManagerClientImpl::validateAction(
    192             int uniqueId, const String8& path,
    193             int action, const ActionDescription& description) {
    194     bool retCode = false;
    195     if (EMPTY_STRING != path) {
    196         retCode = getDrmManagerService()->validateAction(
    197                 uniqueId, path, action, description);
    198     }
    199     return retCode;
    200 }
    201 
    202 status_t DrmManagerClientImpl::removeRights(int uniqueId, const String8& path) {
    203     status_t status = DRM_ERROR_UNKNOWN;
    204     if (EMPTY_STRING != path) {
    205         status = getDrmManagerService()->removeRights(uniqueId, path);
    206     }
    207     return status;
    208 }
    209 
    210 status_t DrmManagerClientImpl::removeAllRights(int uniqueId) {
    211     return getDrmManagerService()->removeAllRights(uniqueId);
    212 }
    213 
    214 int DrmManagerClientImpl::openConvertSession(
    215         int uniqueId, const String8& mimeType) {
    216     int retCode = INVALID_VALUE;
    217     if (EMPTY_STRING != mimeType) {
    218         retCode = getDrmManagerService()->openConvertSession(uniqueId, mimeType);
    219     }
    220     return retCode;
    221 }
    222 
    223 DrmConvertedStatus* DrmManagerClientImpl::convertData(
    224             int uniqueId, int convertId, const DrmBuffer* inputData) {
    225     DrmConvertedStatus* drmConvertedStatus = NULL;
    226     if (NULL != inputData) {
    227          drmConvertedStatus =
    228              getDrmManagerService()->convertData(uniqueId, convertId, inputData);
    229     }
    230     return drmConvertedStatus;
    231 }
    232 
    233 DrmConvertedStatus* DrmManagerClientImpl::closeConvertSession(
    234         int uniqueId, int convertId) {
    235     return getDrmManagerService()->closeConvertSession(uniqueId, convertId);
    236 }
    237 
    238 status_t DrmManagerClientImpl::getAllSupportInfo(
    239             int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray) {
    240     status_t status = DRM_ERROR_UNKNOWN;
    241     if ((NULL != drmSupportInfoArray) && (NULL != length)) {
    242         status = getDrmManagerService()->getAllSupportInfo(
    243                 uniqueId, length, drmSupportInfoArray);
    244     }
    245     return status;
    246 }
    247 
    248 sp<DecryptHandle> DrmManagerClientImpl::openDecryptSession(
    249             int uniqueId, int fd, off64_t offset,
    250             off64_t length, const char* mime) {
    251 
    252     return getDrmManagerService()->openDecryptSession(
    253                 uniqueId, fd, offset, length, mime);
    254 }
    255 
    256 sp<DecryptHandle> DrmManagerClientImpl::openDecryptSession(
    257         int uniqueId, const char* uri, const char* mime) {
    258 
    259     DecryptHandle* handle = NULL;
    260     if (NULL != uri) {
    261         handle = getDrmManagerService()->openDecryptSession(uniqueId, uri, mime);
    262     }
    263     return handle;
    264 }
    265 
    266 sp<DecryptHandle> DrmManagerClientImpl::openDecryptSession(
    267             int uniqueId, const DrmBuffer& buf, const String8& mimeType) {
    268     return getDrmManagerService()->openDecryptSession(uniqueId, buf, mimeType);
    269 }
    270 
    271 status_t DrmManagerClientImpl::closeDecryptSession(
    272         int uniqueId, sp<DecryptHandle> &decryptHandle) {
    273     status_t status = DRM_ERROR_UNKNOWN;
    274     if (NULL != decryptHandle.get()) {
    275         status = getDrmManagerService()->closeDecryptSession(
    276                 uniqueId, decryptHandle.get());
    277     }
    278     return status;
    279 }
    280 
    281 status_t DrmManagerClientImpl::initializeDecryptUnit(
    282         int uniqueId, sp<DecryptHandle> &decryptHandle,
    283         int decryptUnitId, const DrmBuffer* headerInfo) {
    284     status_t status = DRM_ERROR_UNKNOWN;
    285     if ((NULL != decryptHandle.get()) && (NULL != headerInfo)) {
    286         status = getDrmManagerService()->initializeDecryptUnit(
    287                 uniqueId, decryptHandle.get(), decryptUnitId, headerInfo);
    288     }
    289     return status;
    290 }
    291 
    292 status_t DrmManagerClientImpl::decrypt(
    293         int uniqueId, sp<DecryptHandle> &decryptHandle,
    294         int decryptUnitId, const DrmBuffer* encBuffer,
    295         DrmBuffer** decBuffer, DrmBuffer* IV) {
    296     status_t status = DRM_ERROR_UNKNOWN;
    297     if ((NULL != decryptHandle.get()) && (NULL != encBuffer)
    298         && (NULL != decBuffer) && (NULL != *decBuffer)) {
    299         status = getDrmManagerService()->decrypt(
    300                 uniqueId, decryptHandle.get(), decryptUnitId,
    301                 encBuffer, decBuffer, IV);
    302     }
    303     return status;
    304 }
    305 
    306 status_t DrmManagerClientImpl::finalizeDecryptUnit(
    307             int uniqueId, sp<DecryptHandle> &decryptHandle, int decryptUnitId) {
    308     status_t status = DRM_ERROR_UNKNOWN;
    309     if (NULL != decryptHandle.get()) {
    310         status = getDrmManagerService()->finalizeDecryptUnit(
    311                     uniqueId, decryptHandle.get(), decryptUnitId);
    312     }
    313     return status;
    314 }
    315 
    316 ssize_t DrmManagerClientImpl::pread(int uniqueId, sp<DecryptHandle> &decryptHandle,
    317             void* buffer, ssize_t numBytes, off64_t offset) {
    318     ssize_t retCode = INVALID_VALUE;
    319     if ((NULL != decryptHandle.get()) && (NULL != buffer) && (0 < numBytes)) {
    320         retCode = getDrmManagerService()->pread(
    321                 uniqueId, decryptHandle.get(), buffer, numBytes, offset);
    322     }
    323     return retCode;
    324 }
    325 
    326 status_t DrmManagerClientImpl::notify(const DrmInfoEvent& event) {
    327     if (NULL != mOnInfoListener.get()) {
    328         Mutex::Autolock _l(mLock);
    329         sp<DrmManagerClient::OnInfoListener> listener = mOnInfoListener;
    330         listener->onInfo(event);
    331     }
    332     return DRM_NO_ERROR;
    333 }
    334 
    335 DrmManagerClientImpl::DeathNotifier::~DeathNotifier() {
    336     Mutex::Autolock lock(sMutex);
    337     if (NULL != sDrmManagerService.get()) {
    338         sDrmManagerService->asBinder()->unlinkToDeath(this);
    339     }
    340 }
    341 
    342 void DrmManagerClientImpl::DeathNotifier::binderDied(const wp<IBinder>& who) {
    343     Mutex::Autolock lock(sMutex);
    344     DrmManagerClientImpl::sDrmManagerService.clear();
    345     ALOGW("DrmManager server died!");
    346 }
    347 
    348