DrmManagerService.cpp revision 3473846f64f5b28e1cbeb70ef5867073fc93159e 
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 "DrmManagerService(Native)"
19#include <utils/Log.h>
20
21#include <private/android_filesystem_config.h>
22
23#include <errno.h>
24#include <utils/threads.h>
25#include <binder/IServiceManager.h>
26#include <binder/IPCThreadState.h>
27#include <sys/stat.h>
28#include "DrmManagerService.h"
29#include "DrmManager.h"
30
31using namespace android;
32
33static Vector<uid_t> trustedUids;
34
35static bool isProtectedCallAllowed() {
36    // TODO
37    // Following implementation is just for reference.
38    // Each OEM manufacturer should implement/replace with their own solutions.
39    bool result = false;
40
41    IPCThreadState* ipcState = IPCThreadState::self();
42    uid_t uid = ipcState->getCallingUid();
43
44    for (unsigned int i = 0; i < trustedUids.size(); ++i) {
45        if (trustedUids[i] == uid) {
46            result = true;
47            break;
48        }
49    }
50    return result;
51}
52
53void DrmManagerService::instantiate() {
54    LOGV("instantiate");
55    defaultServiceManager()->addService(String16("drm.drmManager"), new DrmManagerService());
56
57    if (0 >= trustedUids.size()) {
58        // TODO
59        // Following implementation is just for reference.
60        // Each OEM manufacturer should implement/replace with their own solutions.
61
62        // Add trusted uids here
63        trustedUids.push(AID_MEDIA);
64    }
65}
66
67DrmManagerService::DrmManagerService() :
68        mDrmManager(NULL) {
69    LOGV("created");
70    mDrmManager = new DrmManager();
71    mDrmManager->loadPlugIns();
72}
73
74DrmManagerService::~DrmManagerService() {
75    LOGV("Destroyed");
76    mDrmManager->unloadPlugIns();
77    delete mDrmManager; mDrmManager = NULL;
78}
79
80int DrmManagerService::addUniqueId(int uniqueId) {
81    return mDrmManager->addUniqueId(uniqueId);
82}
83
84void DrmManagerService::removeUniqueId(int uniqueId) {
85    mDrmManager->removeUniqueId(uniqueId);
86}
87
88void DrmManagerService::addClient(int uniqueId) {
89    mDrmManager->addClient(uniqueId);
90}
91
92void DrmManagerService::removeClient(int uniqueId) {
93    mDrmManager->removeClient(uniqueId);
94}
95
96status_t DrmManagerService::setDrmServiceListener(
97            int uniqueId, const sp<IDrmServiceListener>& drmServiceListener) {
98    LOGV("Entering setDrmServiceListener");
99    mDrmManager->setDrmServiceListener(uniqueId, drmServiceListener);
100    return DRM_NO_ERROR;
101}
102
103status_t DrmManagerService::installDrmEngine(int uniqueId, const String8& drmEngineFile) {
104    LOGV("Entering installDrmEngine");
105    return mDrmManager->installDrmEngine(uniqueId, drmEngineFile);
106}
107
108DrmConstraints* DrmManagerService::getConstraints(
109            int uniqueId, const String8* path, const int action) {
110    LOGV("Entering getConstraints from content");
111    return mDrmManager->getConstraints(uniqueId, path, action);
112}
113
114DrmMetadata* DrmManagerService::getMetadata(int uniqueId, const String8* path) {
115    LOGV("Entering getMetadata from content");
116    return mDrmManager->getMetadata(uniqueId, path);
117}
118
119bool DrmManagerService::canHandle(int uniqueId, const String8& path, const String8& mimeType) {
120    LOGV("Entering canHandle");
121    return mDrmManager->canHandle(uniqueId, path, mimeType);
122}
123
124DrmInfoStatus* DrmManagerService::processDrmInfo(int uniqueId, const DrmInfo* drmInfo) {
125    LOGV("Entering processDrmInfo");
126    return mDrmManager->processDrmInfo(uniqueId, drmInfo);
127}
128
129DrmInfo* DrmManagerService::acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest) {
130    LOGV("Entering acquireDrmInfo");
131    return mDrmManager->acquireDrmInfo(uniqueId, drmInfoRequest);
132}
133
134status_t DrmManagerService::saveRights(
135            int uniqueId, const DrmRights& drmRights,
136            const String8& rightsPath, const String8& contentPath) {
137    LOGV("Entering saveRights");
138    return mDrmManager->saveRights(uniqueId, drmRights, rightsPath, contentPath);
139}
140
141String8 DrmManagerService::getOriginalMimeType(int uniqueId, const String8& path) {
142    LOGV("Entering getOriginalMimeType");
143    return mDrmManager->getOriginalMimeType(uniqueId, path);
144}
145
146int DrmManagerService::getDrmObjectType(
147           int uniqueId, const String8& path, const String8& mimeType) {
148    LOGV("Entering getDrmObjectType");
149    return mDrmManager->getDrmObjectType(uniqueId, path, mimeType);
150}
151
152int DrmManagerService::checkRightsStatus(
153            int uniqueId, const String8& path, int action) {
154    LOGV("Entering checkRightsStatus");
155    return mDrmManager->checkRightsStatus(uniqueId, path, action);
156}
157
158status_t DrmManagerService::consumeRights(
159            int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve) {
160    LOGV("Entering consumeRights");
161    return mDrmManager->consumeRights(uniqueId, decryptHandle, action, reserve);
162}
163
164status_t DrmManagerService::setPlaybackStatus(
165            int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int position) {
166    LOGV("Entering setPlaybackStatus");
167    return mDrmManager->setPlaybackStatus(uniqueId, decryptHandle, playbackStatus, position);
168}
169
170bool DrmManagerService::validateAction(
171            int uniqueId, const String8& path,
172            int action, const ActionDescription& description) {
173    LOGV("Entering validateAction");
174    return mDrmManager->validateAction(uniqueId, path, action, description);
175}
176
177status_t DrmManagerService::removeRights(int uniqueId, const String8& path) {
178    LOGV("Entering removeRights");
179    return mDrmManager->removeRights(uniqueId, path);
180}
181
182status_t DrmManagerService::removeAllRights(int uniqueId) {
183    LOGV("Entering removeAllRights");
184    return mDrmManager->removeAllRights(uniqueId);
185}
186
187int DrmManagerService::openConvertSession(int uniqueId, const String8& mimeType) {
188    LOGV("Entering openConvertSession");
189    return mDrmManager->openConvertSession(uniqueId, mimeType);
190}
191
192DrmConvertedStatus* DrmManagerService::convertData(
193            int uniqueId, int convertId, const DrmBuffer* inputData) {
194    LOGV("Entering convertData");
195    return mDrmManager->convertData(uniqueId, convertId, inputData);
196}
197
198DrmConvertedStatus* DrmManagerService::closeConvertSession(int uniqueId, int convertId) {
199    LOGV("Entering closeConvertSession");
200    return mDrmManager->closeConvertSession(uniqueId, convertId);
201}
202
203status_t DrmManagerService::getAllSupportInfo(
204            int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray) {
205    LOGV("Entering getAllSupportInfo");
206    return mDrmManager->getAllSupportInfo(uniqueId, length, drmSupportInfoArray);
207}
208
209DecryptHandle* DrmManagerService::openDecryptSession(
210            int uniqueId, int fd, int offset, int length) {
211    LOGV("Entering DrmManagerService::openDecryptSession");
212    if (isProtectedCallAllowed()) {
213        return mDrmManager->openDecryptSession(uniqueId, fd, offset, length);
214    }
215
216    return NULL;
217}
218
219DecryptHandle* DrmManagerService::openDecryptSession(
220            int uniqueId, const char* uri) {
221    LOGV("Entering DrmManagerService::openDecryptSession with uri");
222    if (isProtectedCallAllowed()) {
223        return mDrmManager->openDecryptSession(uniqueId, uri);
224    }
225
226    return NULL;
227}
228
229status_t DrmManagerService::closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle) {
230    LOGV("Entering closeDecryptSession");
231    return mDrmManager->closeDecryptSession(uniqueId, decryptHandle);
232}
233
234status_t DrmManagerService::initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
235            int decryptUnitId, const DrmBuffer* headerInfo) {
236    LOGV("Entering initializeDecryptUnit");
237    return mDrmManager->initializeDecryptUnit(uniqueId,decryptHandle, decryptUnitId, headerInfo);
238}
239
240status_t DrmManagerService::decrypt(
241            int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId,
242            const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* IV) {
243    LOGV("Entering decrypt");
244    return mDrmManager->decrypt(uniqueId, decryptHandle, decryptUnitId, encBuffer, decBuffer, IV);
245}
246
247status_t DrmManagerService::finalizeDecryptUnit(
248            int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId) {
249    LOGV("Entering finalizeDecryptUnit");
250    return mDrmManager->finalizeDecryptUnit(uniqueId, decryptHandle, decryptUnitId);
251}
252
253ssize_t DrmManagerService::pread(int uniqueId, DecryptHandle* decryptHandle,
254            void* buffer, ssize_t numBytes, off_t offset) {
255    LOGV("Entering pread");
256    return mDrmManager->pread(uniqueId, decryptHandle, buffer, numBytes, offset);
257}
258
259