DrmManagerService.cpp revision 1608735ef488ecd8c3c012a3b0d4b1d4ef3d93c7 
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#include <media/MemoryLeakTrackUtil.h>
23
24#include <errno.h>
25#include <utils/threads.h>
26#include <binder/IServiceManager.h>
27#include <binder/IPCThreadState.h>
28#include <sys/stat.h>
29#include "DrmManagerService.h"
30#include "DrmManager.h"
31
32using namespace android;
33
34static Vector<uid_t> trustedUids;
35
36static bool isProtectedCallAllowed() {
37    return true;
38}
39
40void DrmManagerService::instantiate() {
41    ALOGV("instantiate");
42    defaultServiceManager()->addService(String16("drm.drmManager"), new DrmManagerService());
43
44    if (0 >= trustedUids.size()) {
45        // TODO
46        // Following implementation is just for reference.
47        // Each OEM manufacturer should implement/replace with their own solutions.
48
49        // Add trusted uids here
50        trustedUids.push(AID_MEDIA);
51    }
52}
53
54DrmManagerService::DrmManagerService() :
55        mDrmManager(NULL) {
56    ALOGV("created");
57    mDrmManager = new DrmManager();
58    mDrmManager->loadPlugIns();
59}
60
61DrmManagerService::~DrmManagerService() {
62    ALOGV("Destroyed");
63    mDrmManager->unloadPlugIns();
64    delete mDrmManager; mDrmManager = NULL;
65}
66
67int DrmManagerService::addUniqueId(bool isNative) {
68    return mDrmManager->addUniqueId(isNative);
69}
70
71void DrmManagerService::removeUniqueId(int uniqueId) {
72    mDrmManager->removeUniqueId(uniqueId);
73}
74
75void DrmManagerService::addClient(int uniqueId) {
76    mDrmManager->addClient(uniqueId);
77}
78
79void DrmManagerService::removeClient(int uniqueId) {
80    mDrmManager->removeClient(uniqueId);
81}
82
83status_t DrmManagerService::setDrmServiceListener(
84            int uniqueId, const sp<IDrmServiceListener>& drmServiceListener) {
85    ALOGV("Entering setDrmServiceListener");
86    mDrmManager->setDrmServiceListener(uniqueId, drmServiceListener);
87    return DRM_NO_ERROR;
88}
89
90status_t DrmManagerService::installDrmEngine(int uniqueId, const String8& drmEngineFile) {
91    ALOGV("Entering installDrmEngine");
92    return mDrmManager->installDrmEngine(uniqueId, drmEngineFile);
93}
94
95DrmConstraints* DrmManagerService::getConstraints(
96            int uniqueId, const String8* path, const int action) {
97    ALOGV("Entering getConstraints from content");
98    return mDrmManager->getConstraints(uniqueId, path, action);
99}
100
101DrmMetadata* DrmManagerService::getMetadata(int uniqueId, const String8* path) {
102    ALOGV("Entering getMetadata from content");
103    return mDrmManager->getMetadata(uniqueId, path);
104}
105
106bool DrmManagerService::canHandle(int uniqueId, const String8& path, const String8& mimeType) {
107    ALOGV("Entering canHandle");
108    return mDrmManager->canHandle(uniqueId, path, mimeType);
109}
110
111DrmInfoStatus* DrmManagerService::processDrmInfo(int uniqueId, const DrmInfo* drmInfo) {
112    ALOGV("Entering processDrmInfo");
113    return mDrmManager->processDrmInfo(uniqueId, drmInfo);
114}
115
116DrmInfo* DrmManagerService::acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest) {
117    ALOGV("Entering acquireDrmInfo");
118    return mDrmManager->acquireDrmInfo(uniqueId, drmInfoRequest);
119}
120
121status_t DrmManagerService::saveRights(
122            int uniqueId, const DrmRights& drmRights,
123            const String8& rightsPath, const String8& contentPath) {
124    ALOGV("Entering saveRights");
125    return mDrmManager->saveRights(uniqueId, drmRights, rightsPath, contentPath);
126}
127
128String8 DrmManagerService::getOriginalMimeType(int uniqueId, const String8& path) {
129    ALOGV("Entering getOriginalMimeType");
130    return mDrmManager->getOriginalMimeType(uniqueId, path);
131}
132
133int DrmManagerService::getDrmObjectType(
134           int uniqueId, const String8& path, const String8& mimeType) {
135    ALOGV("Entering getDrmObjectType");
136    return mDrmManager->getDrmObjectType(uniqueId, path, mimeType);
137}
138
139int DrmManagerService::checkRightsStatus(
140            int uniqueId, const String8& path, int action) {
141    ALOGV("Entering checkRightsStatus");
142    return mDrmManager->checkRightsStatus(uniqueId, path, action);
143}
144
145status_t DrmManagerService::consumeRights(
146            int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve) {
147    ALOGV("Entering consumeRights");
148    if (!isProtectedCallAllowed()) {
149        return DRM_ERROR_NO_PERMISSION;
150    }
151    return mDrmManager->consumeRights(uniqueId, decryptHandle, action, reserve);
152}
153
154status_t DrmManagerService::setPlaybackStatus(
155            int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int64_t position) {
156    ALOGV("Entering setPlaybackStatus");
157    if (!isProtectedCallAllowed()) {
158        return DRM_ERROR_NO_PERMISSION;
159    }
160    return mDrmManager->setPlaybackStatus(uniqueId, decryptHandle, playbackStatus, position);
161}
162
163bool DrmManagerService::validateAction(
164            int uniqueId, const String8& path,
165            int action, const ActionDescription& description) {
166    ALOGV("Entering validateAction");
167    return mDrmManager->validateAction(uniqueId, path, action, description);
168}
169
170status_t DrmManagerService::removeRights(int uniqueId, const String8& path) {
171    ALOGV("Entering removeRights");
172    return mDrmManager->removeRights(uniqueId, path);
173}
174
175status_t DrmManagerService::removeAllRights(int uniqueId) {
176    ALOGV("Entering removeAllRights");
177    return mDrmManager->removeAllRights(uniqueId);
178}
179
180int DrmManagerService::openConvertSession(int uniqueId, const String8& mimeType) {
181    ALOGV("Entering openConvertSession");
182    return mDrmManager->openConvertSession(uniqueId, mimeType);
183}
184
185DrmConvertedStatus* DrmManagerService::convertData(
186            int uniqueId, int convertId, const DrmBuffer* inputData) {
187    ALOGV("Entering convertData");
188    return mDrmManager->convertData(uniqueId, convertId, inputData);
189}
190
191DrmConvertedStatus* DrmManagerService::closeConvertSession(int uniqueId, int convertId) {
192    ALOGV("Entering closeConvertSession");
193    return mDrmManager->closeConvertSession(uniqueId, convertId);
194}
195
196status_t DrmManagerService::getAllSupportInfo(
197            int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray) {
198    ALOGV("Entering getAllSupportInfo");
199    return mDrmManager->getAllSupportInfo(uniqueId, length, drmSupportInfoArray);
200}
201
202DecryptHandle* DrmManagerService::openDecryptSession(
203            int uniqueId, int fd, off64_t offset, off64_t length, const char* mime) {
204    ALOGV("Entering DrmManagerService::openDecryptSession");
205    if (isProtectedCallAllowed()) {
206        return mDrmManager->openDecryptSession(uniqueId, fd, offset, length, mime);
207    }
208
209    return NULL;
210}
211
212DecryptHandle* DrmManagerService::openDecryptSession(
213            int uniqueId, const char* uri, const char* mime) {
214    ALOGV("Entering DrmManagerService::openDecryptSession with uri");
215    if (isProtectedCallAllowed()) {
216        return mDrmManager->openDecryptSession(uniqueId, uri, mime);
217    }
218
219    return NULL;
220}
221
222status_t DrmManagerService::closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle) {
223    ALOGV("Entering closeDecryptSession");
224    if (!isProtectedCallAllowed()) {
225        return DRM_ERROR_NO_PERMISSION;
226    }
227    return mDrmManager->closeDecryptSession(uniqueId, decryptHandle);
228}
229
230status_t DrmManagerService::initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
231            int decryptUnitId, const DrmBuffer* headerInfo) {
232    ALOGV("Entering initializeDecryptUnit");
233    if (!isProtectedCallAllowed()) {
234        return DRM_ERROR_NO_PERMISSION;
235    }
236    return mDrmManager->initializeDecryptUnit(uniqueId,decryptHandle, decryptUnitId, headerInfo);
237}
238
239status_t DrmManagerService::decrypt(
240            int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId,
241            const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* IV) {
242    ALOGV("Entering decrypt");
243    if (!isProtectedCallAllowed()) {
244        return DRM_ERROR_NO_PERMISSION;
245    }
246    return mDrmManager->decrypt(uniqueId, decryptHandle, decryptUnitId, encBuffer, decBuffer, IV);
247}
248
249status_t DrmManagerService::finalizeDecryptUnit(
250            int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId) {
251    ALOGV("Entering finalizeDecryptUnit");
252    if (!isProtectedCallAllowed()) {
253        return DRM_ERROR_NO_PERMISSION;
254    }
255    return mDrmManager->finalizeDecryptUnit(uniqueId, decryptHandle, decryptUnitId);
256}
257
258ssize_t DrmManagerService::pread(int uniqueId, DecryptHandle* decryptHandle,
259            void* buffer, ssize_t numBytes, off64_t offset) {
260    ALOGV("Entering pread");
261    if (!isProtectedCallAllowed()) {
262        return DRM_ERROR_NO_PERMISSION;
263    }
264    return mDrmManager->pread(uniqueId, decryptHandle, buffer, numBytes, offset);
265}
266
267status_t DrmManagerService::dump(int fd, const Vector<String16>& args)
268{
269    const size_t SIZE = 256;
270    char buffer[SIZE];
271    String8 result;
272    if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
273        snprintf(buffer, SIZE, "Permission Denial: "
274                "can't dump DrmManagerService from pid=%d, uid=%d\n",
275                IPCThreadState::self()->getCallingPid(),
276                IPCThreadState::self()->getCallingUid());
277        result.append(buffer);
278    } else {
279#if DRM_MEMORY_LEAK_TRACK
280        bool dumpMem = false;
281        for (size_t i = 0; i < args.size(); i++) {
282            if (args[i] == String16("-m")) {
283                dumpMem = true;
284            }
285        }
286        if (dumpMem) {
287            dumpMemoryAddresses(fd);
288        }
289#endif
290    }
291    write(fd, result.string(), result.size());
292    return NO_ERROR;
293}
294
295