Implementing MediaDrm APIs
Change-Id: I9ff8eeb7d0c383b5c0c68cd54eb54ce7d2d22fe6
diff --git a/media/libmedia/IDrm.cpp b/media/libmedia/IDrm.cpp
new file mode 100644
index 0000000..3b13ec6
--- /dev/null
+++ b/media/libmedia/IDrm.cpp
@@ -0,0 +1,551 @@
+/*
+ * Copyright (C) 2013 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 "IDrm"
+#include <utils/Log.h>
+
+#include <binder/Parcel.h>
+#include <media/IDrm.h>
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AString.h>
+
+namespace android {
+
+enum {
+ INIT_CHECK = IBinder::FIRST_CALL_TRANSACTION,
+ IS_CRYPTO_SUPPORTED,
+ CREATE_PLUGIN,
+ DESTROY_PLUGIN,
+ OPEN_SESSION,
+ CLOSE_SESSION,
+ GET_LICENSE_REQUEST,
+ PROVIDE_LICENSE_RESPONSE,
+ REMOVE_LICENSE,
+ QUERY_LICENSE_STATUS,
+ GET_PROVISION_REQUEST,
+ PROVIDE_PROVISION_RESPONSE,
+ GET_SECURE_STOPS,
+ RELEASE_SECURE_STOPS,
+ GET_PROPERTY_STRING,
+ GET_PROPERTY_BYTE_ARRAY,
+ SET_PROPERTY_STRING,
+ SET_PROPERTY_BYTE_ARRAY
+};
+
+struct BpDrm : public BpInterface<IDrm> {
+ BpDrm(const sp<IBinder> &impl)
+ : BpInterface<IDrm>(impl) {
+ }
+
+ virtual status_t initCheck() const {
+ Parcel data, reply;
+ data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+ remote()->transact(INIT_CHECK, data, &reply);
+
+ return reply.readInt32();
+ }
+
+ virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]) {
+ Parcel data, reply;
+ data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+ data.write(uuid, 16);
+ remote()->transact(IS_CRYPTO_SUPPORTED, data, &reply);
+
+ return reply.readInt32() != 0;
+ }
+
+ virtual status_t createPlugin(const uint8_t uuid[16]) {
+ Parcel data, reply;
+ data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+ data.write(uuid, 16);
+
+ remote()->transact(CREATE_PLUGIN, data, &reply);
+
+ return reply.readInt32();
+ }
+
+ virtual status_t destroyPlugin() {
+ Parcel data, reply;
+ data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+ remote()->transact(DESTROY_PLUGIN, data, &reply);
+
+ return reply.readInt32();
+ }
+
+ virtual status_t openSession(Vector<uint8_t> &sessionId) {
+ Parcel data, reply;
+ data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+ remote()->transact(OPEN_SESSION, data, &reply);
+ uint32_t size = reply.readInt32();
+ sessionId.insertAt((size_t)0, size);
+ reply.read(sessionId.editArray(), size);
+
+ return reply.readInt32();
+ }
+
+ virtual status_t closeSession(Vector<uint8_t> const &sessionId) {
+ Parcel data, reply;
+ data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+ data.writeInt32(sessionId.size());
+ data.write(sessionId.array(), sessionId.size());
+ remote()->transact(CLOSE_SESSION, data, &reply);
+
+ return reply.readInt32();
+ }
+
+ virtual status_t
+ getLicenseRequest(Vector<uint8_t> const &sessionId,
+ Vector<uint8_t> const &initData,
+ String8 const &mimeType, DrmPlugin::LicenseType licenseType,
+ KeyedVector<String8, String8> const &optionalParameters,
+ Vector<uint8_t> &request, String8 &defaultUrl) {
+ Parcel data, reply;
+ data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+ data.writeInt32(sessionId.size());
+ data.write(sessionId.array(), sessionId.size());
+
+ data.writeInt32(initData.size());
+ data.write(initData.array(), initData.size());
+
+ data.writeString8(mimeType);
+ data.writeInt32((uint32_t)licenseType);
+
+ data.writeInt32(optionalParameters.size());
+ for (size_t i = 0; i < optionalParameters.size(); ++i) {
+ data.writeString8(optionalParameters.keyAt(i));
+ data.writeString8(optionalParameters.valueAt(i));
+ }
+ remote()->transact(GET_LICENSE_REQUEST, data, &reply);
+
+ uint32_t len = reply.readInt32();
+ request.insertAt((size_t)0, len);
+ reply.read(request.editArray(), len);
+ defaultUrl = reply.readString8();
+
+ return reply.readInt32();
+ }
+
+ virtual status_t provideLicenseResponse(Vector<uint8_t> const &sessionId,
+ Vector<uint8_t> const &response) {
+ Parcel data, reply;
+ data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+ data.writeInt32(sessionId.size());
+ data.write(sessionId.array(), sessionId.size());
+ data.writeInt32(response.size());
+ data.write(response.array(), response.size());
+ remote()->transact(PROVIDE_LICENSE_RESPONSE, data, &reply);
+
+ return reply.readInt32();
+ }
+
+ virtual status_t removeLicense(Vector<uint8_t> const &sessionId) {
+ Parcel data, reply;
+ data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+ data.writeInt32(sessionId.size());
+ data.write(sessionId.array(), sessionId.size());
+ remote()->transact(REMOVE_LICENSE, data, &reply);
+
+ return reply.readInt32();
+ }
+
+ virtual status_t queryLicenseStatus(Vector<uint8_t> const &sessionId,
+ KeyedVector<String8, String8> &infoMap) const {
+ Parcel data, reply;
+ data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+ data.writeInt32(sessionId.size());
+ data.write(sessionId.array(), sessionId.size());
+
+ remote()->transact(QUERY_LICENSE_STATUS, data, &reply);
+
+ infoMap.clear();
+ size_t count = reply.readInt32();
+ for (size_t i = 0; i < count; i++) {
+ String8 key = reply.readString8();
+ String8 value = reply.readString8();
+ infoMap.add(key, value);
+ }
+ return reply.readInt32();
+ }
+
+ virtual status_t getProvisionRequest(Vector<uint8_t> &request,
+ String8 &defaultUrl) {
+ Parcel data, reply;
+ data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+ remote()->transact(GET_PROVISION_REQUEST, data, &reply);
+
+ uint32_t len = reply.readInt32();
+ request.insertAt((size_t)0, len);
+ reply.read(request.editArray(), len);
+ defaultUrl = reply.readString8();
+
+ return reply.readInt32();
+ }
+
+ virtual status_t provideProvisionResponse(Vector<uint8_t> const &response) {
+ Parcel data, reply;
+ data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+ data.writeInt32(response.size());
+ data.write(response.array(), response.size());
+ remote()->transact(PROVIDE_PROVISION_RESPONSE, data, &reply);
+
+ return reply.readInt32();
+ }
+
+ virtual status_t getSecureStops(List<Vector<uint8_t> > &secureStops) {
+ Parcel data, reply;
+ data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+ remote()->transact(GET_SECURE_STOPS, data, &reply);
+
+ secureStops.clear();
+ uint32_t count = reply.readInt32();
+ for (size_t i = 0; i < count; i++) {
+ Vector<uint8_t> secureStop;
+ uint32_t len = reply.readInt32();
+ secureStop.insertAt((size_t)0, len);
+ reply.read(secureStop.editArray(), len);
+ secureStops.push_back(secureStop);
+ }
+ return reply.readInt32();
+ }
+
+ virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease) {
+ Parcel data, reply;
+ data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+ data.writeInt32(ssRelease.size());
+ data.write(ssRelease.array(), ssRelease.size());
+ remote()->transact(RELEASE_SECURE_STOPS, data, &reply);
+
+ return reply.readInt32();
+ }
+
+ virtual status_t getPropertyString(String8 const &name, String8 &value) const {
+ Parcel data, reply;
+ data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+ data.writeString8(name);
+ remote()->transact(GET_PROPERTY_STRING, data, &reply);
+
+ value = reply.readString8();
+ return reply.readInt32();
+ }
+
+ virtual status_t getPropertyByteArray(String8 const &name, Vector<uint8_t> &value) const {
+ Parcel data, reply;
+ data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+ data.writeString8(name);
+ remote()->transact(GET_PROPERTY_BYTE_ARRAY, data, &reply);
+
+ uint32_t len = reply.readInt32();
+ value.insertAt((size_t)0, len);
+ reply.read(value.editArray(), len);
+
+ return reply.readInt32();
+ }
+
+ virtual status_t setPropertyString(String8 const &name, String8 const &value) const {
+ Parcel data, reply;
+ data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+ data.writeString8(name);
+ data.writeString8(value);
+ remote()->transact(SET_PROPERTY_STRING, data, &reply);
+
+ return reply.readInt32();
+ }
+
+ virtual status_t setPropertyByteArray(String8 const &name,
+ Vector<uint8_t> const &value) const {
+ Parcel data, reply;
+ data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+ data.writeString8(name);
+ data.writeInt32(value.size());
+ data.write(value.array(), value.size());
+ remote()->transact(SET_PROPERTY_BYTE_ARRAY, data, &reply);
+
+ return reply.readInt32();
+ }
+
+
+private:
+ DISALLOW_EVIL_CONSTRUCTORS(BpDrm);
+};
+
+IMPLEMENT_META_INTERFACE(Drm, "android.drm.IDrm");
+
+////////////////////////////////////////////////////////////////////////////////
+
+status_t BnDrm::onTransact(
+ uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
+ switch (code) {
+ case INIT_CHECK:
+ {
+ CHECK_INTERFACE(IDrm, data, reply);
+ reply->writeInt32(initCheck());
+ return OK;
+ }
+
+ case IS_CRYPTO_SUPPORTED:
+ {
+ CHECK_INTERFACE(IDrm, data, reply);
+ uint8_t uuid[16];
+ data.read(uuid, sizeof(uuid));
+ reply->writeInt32(isCryptoSchemeSupported(uuid));
+ return OK;
+ }
+
+ case CREATE_PLUGIN:
+ {
+ CHECK_INTERFACE(IDrm, data, reply);
+ uint8_t uuid[16];
+ data.read(uuid, sizeof(uuid));
+ reply->writeInt32(createPlugin(uuid));
+ return OK;
+ }
+
+ case DESTROY_PLUGIN:
+ {
+ CHECK_INTERFACE(IDrm, data, reply);
+ reply->writeInt32(destroyPlugin());
+ return OK;
+ }
+
+ case OPEN_SESSION:
+ {
+ CHECK_INTERFACE(IDrm, data, reply);
+ Vector<uint8_t> sessionId;
+ status_t result = openSession(sessionId);
+ reply->writeInt32(sessionId.size());
+ reply->write(sessionId.array(), sessionId.size());
+ reply->writeInt32(result);
+ return OK;
+ }
+
+ case CLOSE_SESSION:
+ {
+ CHECK_INTERFACE(IDrm, data, reply);
+ Vector<uint8_t> sessionId;
+ uint32_t size = data.readInt32();
+ sessionId.insertAt((size_t)0, size);
+ data.read(sessionId.editArray(), size);
+ reply->writeInt32(closeSession(sessionId));
+ return OK;
+ }
+
+ case GET_LICENSE_REQUEST:
+ {
+ CHECK_INTERFACE(IDrm, data, reply);
+ Vector<uint8_t> sessionId;
+ uint32_t size = data.readInt32();
+ sessionId.insertAt((size_t)0, size);
+ data.read(sessionId.editArray(), size);
+
+ Vector<uint8_t> initData;
+ size = data.readInt32();
+ initData.insertAt((size_t)0, size);
+ data.read(initData.editArray(), size);
+
+ String8 mimeType = data.readString8();
+ DrmPlugin::LicenseType licenseType = (DrmPlugin::LicenseType)data.readInt32();
+
+ KeyedVector<String8, String8> optionalParameters;
+ uint32_t count = data.readInt32();
+ for (size_t i = 0; i < count; ++i) {
+ String8 key, value;
+ key = data.readString8();
+ value = data.readString8();
+ optionalParameters.add(key, value);
+ }
+
+ Vector<uint8_t> request;
+ String8 defaultUrl;
+
+ status_t result = getLicenseRequest(sessionId, initData,
+ mimeType, licenseType,
+ optionalParameters,
+ request, defaultUrl);
+ reply->writeInt32(request.size());
+ reply->write(request.array(), request.size());
+ reply->writeString8(defaultUrl);
+ reply->writeInt32(result);
+ return OK;
+ }
+
+ case PROVIDE_LICENSE_RESPONSE:
+ {
+ CHECK_INTERFACE(IDrm, data, reply);
+ Vector<uint8_t> sessionId;
+ uint32_t size = data.readInt32();
+ sessionId.insertAt((size_t)0, size);
+ data.read(sessionId.editArray(), size);
+ Vector<uint8_t> response;
+ size = data.readInt32();
+ response.insertAt((size_t)0, size);
+ data.read(response.editArray(), size);
+
+ reply->writeInt32(provideLicenseResponse(sessionId, response));
+ return OK;
+ }
+
+ case REMOVE_LICENSE:
+ {
+ CHECK_INTERFACE(IDrm, data, reply);
+ Vector<uint8_t> sessionId;
+ uint32_t size = data.readInt32();
+ sessionId.insertAt((size_t)0, size);
+ data.read(sessionId.editArray(), size);
+ reply->writeInt32(removeLicense(sessionId));
+ return OK;
+ }
+
+ case QUERY_LICENSE_STATUS:
+ {
+ CHECK_INTERFACE(IDrm, data, reply);
+ Vector<uint8_t> sessionId;
+ uint32_t size = data.readInt32();
+ sessionId.insertAt((size_t)0, size);
+ data.read(sessionId.editArray(), size);
+ KeyedVector<String8, String8> infoMap;
+
+ status_t result = queryLicenseStatus(sessionId, infoMap);
+
+ size_t count = infoMap.size();
+ reply->writeInt32(count);
+ for (size_t i = 0; i < count; ++i) {
+ reply->writeString8(infoMap.keyAt(i));
+ reply->writeString8(infoMap.valueAt(i));
+ }
+ reply->writeInt32(result);
+ return OK;
+ }
+
+ case GET_PROVISION_REQUEST:
+ {
+ CHECK_INTERFACE(IDrm, data, reply);
+ Vector<uint8_t> request;
+ String8 defaultUrl;
+ status_t result = getProvisionRequest(request, defaultUrl);
+ reply->writeInt32(request.size());
+ reply->write(request.array(), request.size());
+ reply->writeString8(defaultUrl);
+ reply->writeInt32(result);
+ return OK;
+ }
+
+ case PROVIDE_PROVISION_RESPONSE:
+ {
+ CHECK_INTERFACE(IDrm, data, reply);
+ Vector<uint8_t> response;
+ uint32_t size = data.readInt32();
+ response.insertAt((size_t)0, size);
+ data.read(response.editArray(), size);
+ reply->writeInt32(provideProvisionResponse(response));
+
+ return OK;
+ }
+
+ case GET_SECURE_STOPS:
+ {
+ CHECK_INTERFACE(IDrm, data, reply);
+ List<Vector<uint8_t> > secureStops;
+ status_t result = getSecureStops(secureStops);
+ size_t count = secureStops.size();
+ reply->writeInt32(count);
+ List<Vector<uint8_t> >::iterator iter = secureStops.begin();
+ while(iter != secureStops.end()) {
+ size_t size = iter->size();
+ reply->writeInt32(size);
+ reply->write(iter->array(), iter->size());
+ }
+ reply->writeInt32(result);
+ return OK;
+ }
+
+ case RELEASE_SECURE_STOPS:
+ {
+ CHECK_INTERFACE(IDrm, data, reply);
+ Vector<uint8_t> ssRelease;
+ uint32_t size = data.readInt32();
+ ssRelease.insertAt((size_t)0, size);
+ data.read(ssRelease.editArray(), size);
+ reply->writeInt32(releaseSecureStops(ssRelease));
+ return OK;
+ }
+
+ case GET_PROPERTY_STRING:
+ {
+ CHECK_INTERFACE(IDrm, data, reply);
+ String8 name = data.readString8();
+ String8 value;
+ status_t result = getPropertyString(name, value);
+ reply->writeString8(value);
+ reply->writeInt32(result);
+ return OK;
+ }
+
+ case GET_PROPERTY_BYTE_ARRAY:
+ {
+ CHECK_INTERFACE(IDrm, data, reply);
+ String8 name = data.readString8();
+ Vector<uint8_t> value;
+ status_t result = getPropertyByteArray(name, value);
+ reply->writeInt32(value.size());
+ reply->write(value.array(), value.size());
+ reply->writeInt32(result);
+ return OK;
+ }
+
+ case SET_PROPERTY_STRING:
+ {
+ CHECK_INTERFACE(IDrm, data, reply);
+ String8 name = data.readString8();
+ String8 value = data.readString8();
+ reply->writeInt32(setPropertyString(name, value));
+ return OK;
+ }
+
+ case SET_PROPERTY_BYTE_ARRAY:
+ {
+ CHECK_INTERFACE(IDrm, data, reply);
+ String8 name = data.readString8();
+ Vector<uint8_t> value;
+ size_t count = data.readInt32();
+ value.insertAt((size_t)0, count);
+ data.read(value.editArray(), count);
+ reply->writeInt32(setPropertyByteArray(name, value));
+ return OK;
+ }
+
+ default:
+ return BBinder::onTransact(code, data, reply, flags);
+ }
+}
+
+} // namespace android
+