blob: 15788469aa5cd5dc0b33d23d4c48a9280e56cf03 [file] [log] [blame]
/*
* 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_KEY_REQUEST,
PROVIDE_KEY_RESPONSE,
REMOVE_KEYS,
RESTORE_KEYS,
QUERY_KEY_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,
SET_CIPHER_ALGORITHM,
SET_MAC_ALGORITHM,
ENCRYPT,
DECRYPT,
SIGN,
VERIFY,
SET_LISTENER
};
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);
readVector(reply, sessionId);
return reply.readInt32();
}
virtual status_t closeSession(Vector<uint8_t> const &sessionId) {
Parcel data, reply;
data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
writeVector(data, sessionId);
remote()->transact(CLOSE_SESSION, data, &reply);
return reply.readInt32();
}
virtual status_t
getKeyRequest(Vector<uint8_t> const &sessionId,
Vector<uint8_t> const &initData,
String8 const &mimeType, DrmPlugin::KeyType keyType,
KeyedVector<String8, String8> const &optionalParameters,
Vector<uint8_t> &request, String8 &defaultUrl) {
Parcel data, reply;
data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
writeVector(data, sessionId);
writeVector(data, initData);
data.writeString8(mimeType);
data.writeInt32((uint32_t)keyType);
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_KEY_REQUEST, data, &reply);
readVector(reply, request);
defaultUrl = reply.readString8();
return reply.readInt32();
}
virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
Vector<uint8_t> const &response,
Vector<uint8_t> &keySetId) {
Parcel data, reply;
data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
writeVector(data, sessionId);
writeVector(data, response);
remote()->transact(PROVIDE_KEY_RESPONSE, data, &reply);
readVector(reply, keySetId);
return reply.readInt32();
}
virtual status_t removeKeys(Vector<uint8_t> const &keySetId) {
Parcel data, reply;
data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
writeVector(data, keySetId);
remote()->transact(REMOVE_KEYS, data, &reply);
return reply.readInt32();
}
virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
Vector<uint8_t> const &keySetId) {
Parcel data, reply;
data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
writeVector(data, sessionId);
writeVector(data, keySetId);
remote()->transact(RESTORE_KEYS, data, &reply);
return reply.readInt32();
}
virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
KeyedVector<String8, String8> &infoMap) const {
Parcel data, reply;
data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
writeVector(data, sessionId);
remote()->transact(QUERY_KEY_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);
readVector(reply, request);
defaultUrl = reply.readString8();
return reply.readInt32();
}
virtual status_t provideProvisionResponse(Vector<uint8_t> const &response) {
Parcel data, reply;
data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
writeVector(data, response);
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;
readVector(reply, secureStop);
secureStops.push_back(secureStop);
}
return reply.readInt32();
}
virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease) {
Parcel data, reply;
data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
writeVector(data, ssRelease);
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);
readVector(reply, value);
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);
writeVector(data, value);
remote()->transact(SET_PROPERTY_BYTE_ARRAY, data, &reply);
return reply.readInt32();
}
virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
String8 const &algorithm) {
Parcel data, reply;
data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
writeVector(data, sessionId);
data.writeString8(algorithm);
remote()->transact(SET_CIPHER_ALGORITHM, data, &reply);
return reply.readInt32();
}
virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
String8 const &algorithm) {
Parcel data, reply;
data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
writeVector(data, sessionId);
data.writeString8(algorithm);
remote()->transact(SET_MAC_ALGORITHM, data, &reply);
return reply.readInt32();
}
virtual status_t encrypt(Vector<uint8_t> const &sessionId,
Vector<uint8_t> const &keyId,
Vector<uint8_t> const &input,
Vector<uint8_t> const &iv,
Vector<uint8_t> &output) {
Parcel data, reply;
data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
writeVector(data, sessionId);
writeVector(data, keyId);
writeVector(data, input);
writeVector(data, iv);
remote()->transact(ENCRYPT, data, &reply);
readVector(reply, output);
return reply.readInt32();
}
virtual status_t decrypt(Vector<uint8_t> const &sessionId,
Vector<uint8_t> const &keyId,
Vector<uint8_t> const &input,
Vector<uint8_t> const &iv,
Vector<uint8_t> &output) {
Parcel data, reply;
data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
writeVector(data, sessionId);
writeVector(data, keyId);
writeVector(data, input);
writeVector(data, iv);
remote()->transact(DECRYPT, data, &reply);
readVector(reply, output);
return reply.readInt32();
}
virtual status_t sign(Vector<uint8_t> const &sessionId,
Vector<uint8_t> const &keyId,
Vector<uint8_t> const &message,
Vector<uint8_t> &signature) {
Parcel data, reply;
data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
writeVector(data, sessionId);
writeVector(data, keyId);
writeVector(data, message);
remote()->transact(SIGN, data, &reply);
readVector(reply, signature);
return reply.readInt32();
}
virtual status_t verify(Vector<uint8_t> const &sessionId,
Vector<uint8_t> const &keyId,
Vector<uint8_t> const &message,
Vector<uint8_t> const &signature,
bool &match) {
Parcel data, reply;
data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
writeVector(data, sessionId);
writeVector(data, keyId);
writeVector(data, message);
writeVector(data, signature);
remote()->transact(VERIFY, data, &reply);
match = (bool)reply.readInt32();
return reply.readInt32();
}
virtual status_t setListener(const sp<IDrmClient>& listener) {
Parcel data, reply;
data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
data.writeStrongBinder(listener->asBinder());
remote()->transact(SET_LISTENER, data, &reply);
return reply.readInt32();
}
private:
void readVector(Parcel &reply, Vector<uint8_t> &vector) const {
uint32_t size = reply.readInt32();
vector.insertAt((size_t)0, size);
reply.read(vector.editArray(), size);
}
void writeVector(Parcel &data, Vector<uint8_t> const &vector) const {
data.writeInt32(vector.size());
data.write(vector.array(), vector.size());
}
DISALLOW_EVIL_CONSTRUCTORS(BpDrm);
};
IMPLEMENT_META_INTERFACE(Drm, "android.drm.IDrm");
////////////////////////////////////////////////////////////////////////////////
void BnDrm::readVector(const Parcel &data, Vector<uint8_t> &vector) const {
uint32_t size = data.readInt32();
vector.insertAt((size_t)0, size);
data.read(vector.editArray(), size);
}
void BnDrm::writeVector(Parcel *reply, Vector<uint8_t> const &vector) const {
reply->writeInt32(vector.size());
reply->write(vector.array(), vector.size());
}
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);
writeVector(reply, sessionId);
reply->writeInt32(result);
return OK;
}
case CLOSE_SESSION:
{
CHECK_INTERFACE(IDrm, data, reply);
Vector<uint8_t> sessionId;
readVector(data, sessionId);
reply->writeInt32(closeSession(sessionId));
return OK;
}
case GET_KEY_REQUEST:
{
CHECK_INTERFACE(IDrm, data, reply);
Vector<uint8_t> sessionId, initData;
readVector(data, sessionId);
readVector(data, initData);
String8 mimeType = data.readString8();
DrmPlugin::KeyType keyType = (DrmPlugin::KeyType)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 = getKeyRequest(sessionId, initData,
mimeType, keyType,
optionalParameters,
request, defaultUrl);
writeVector(reply, request);
reply->writeString8(defaultUrl);
reply->writeInt32(result);
return OK;
}
case PROVIDE_KEY_RESPONSE:
{
CHECK_INTERFACE(IDrm, data, reply);
Vector<uint8_t> sessionId, response, keySetId;
readVector(data, sessionId);
readVector(data, response);
uint32_t result = provideKeyResponse(sessionId, response, keySetId);
writeVector(reply, keySetId);
reply->writeInt32(result);
return OK;
}
case REMOVE_KEYS:
{
CHECK_INTERFACE(IDrm, data, reply);
Vector<uint8_t> keySetId;
readVector(data, keySetId);
reply->writeInt32(removeKeys(keySetId));
return OK;
}
case RESTORE_KEYS:
{
CHECK_INTERFACE(IDrm, data, reply);
Vector<uint8_t> sessionId, keySetId;
readVector(data, sessionId);
readVector(data, keySetId);
reply->writeInt32(restoreKeys(sessionId, keySetId));
return OK;
}
case QUERY_KEY_STATUS:
{
CHECK_INTERFACE(IDrm, data, reply);
Vector<uint8_t> sessionId;
readVector(data, sessionId);
KeyedVector<String8, String8> infoMap;
status_t result = queryKeyStatus(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);
writeVector(reply, request);
reply->writeString8(defaultUrl);
reply->writeInt32(result);
return OK;
}
case PROVIDE_PROVISION_RESPONSE:
{
CHECK_INTERFACE(IDrm, data, reply);
Vector<uint8_t> response;
readVector(data, response);
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;
readVector(data, ssRelease);
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);
writeVector(reply, value);
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;
readVector(data, value);
reply->writeInt32(setPropertyByteArray(name, value));
return OK;
}
case SET_CIPHER_ALGORITHM:
{
CHECK_INTERFACE(IDrm, data, reply);
Vector<uint8_t> sessionId;
readVector(data, sessionId);
String8 algorithm = data.readString8();
reply->writeInt32(setCipherAlgorithm(sessionId, algorithm));
return OK;
}
case SET_MAC_ALGORITHM:
{
CHECK_INTERFACE(IDrm, data, reply);
Vector<uint8_t> sessionId;
readVector(data, sessionId);
String8 algorithm = data.readString8();
reply->writeInt32(setMacAlgorithm(sessionId, algorithm));
return OK;
}
case ENCRYPT:
{
CHECK_INTERFACE(IDrm, data, reply);
Vector<uint8_t> sessionId, keyId, input, iv, output;
readVector(data, sessionId);
readVector(data, keyId);
readVector(data, input);
readVector(data, iv);
uint32_t result = encrypt(sessionId, keyId, input, iv, output);
writeVector(reply, output);
reply->writeInt32(result);
return OK;
}
case DECRYPT:
{
CHECK_INTERFACE(IDrm, data, reply);
Vector<uint8_t> sessionId, keyId, input, iv, output;
readVector(data, sessionId);
readVector(data, keyId);
readVector(data, input);
readVector(data, iv);
uint32_t result = decrypt(sessionId, keyId, input, iv, output);
writeVector(reply, output);
reply->writeInt32(result);
return OK;
}
case SIGN:
{
CHECK_INTERFACE(IDrm, data, reply);
Vector<uint8_t> sessionId, keyId, message, signature;
readVector(data, sessionId);
readVector(data, keyId);
readVector(data, message);
uint32_t result = sign(sessionId, keyId, message, signature);
writeVector(reply, signature);
reply->writeInt32(result);
return OK;
}
case VERIFY:
{
CHECK_INTERFACE(IDrm, data, reply);
Vector<uint8_t> sessionId, keyId, message, signature;
readVector(data, sessionId);
readVector(data, keyId);
readVector(data, message);
readVector(data, signature);
bool match;
uint32_t result = verify(sessionId, keyId, message, signature, match);
reply->writeInt32(match);
reply->writeInt32(result);
return OK;
}
case SET_LISTENER: {
CHECK_INTERFACE(IDrm, data, reply);
sp<IDrmClient> listener =
interface_cast<IDrmClient>(data.readStrongBinder());
reply->writeInt32(setListener(listener));
return NO_ERROR;
} break;
default:
return BBinder::onTransact(code, data, reply, flags);
}
}
} // namespace android