xref: /aosp_15_r20/hardware/interfaces/drm/1.0/default/CryptoFactory.cpp (revision 4d7e907c777eeecc4c5bd7cf640a754fac206ff7)
1*4d7e907cSAndroid Build Coastguard Worker /*
2*4d7e907cSAndroid Build Coastguard Worker  * Copyright (C) 2016 The Android Open Source Project
3*4d7e907cSAndroid Build Coastguard Worker  *
4*4d7e907cSAndroid Build Coastguard Worker  * Licensed under the Apache License, Version 2.0 (the "License");
5*4d7e907cSAndroid Build Coastguard Worker  * you may not use this file except in compliance with the License.
6*4d7e907cSAndroid Build Coastguard Worker  * You may obtain a copy of the License at
7*4d7e907cSAndroid Build Coastguard Worker  *
8*4d7e907cSAndroid Build Coastguard Worker  *      http://www.apache.org/licenses/LICENSE-2.0
9*4d7e907cSAndroid Build Coastguard Worker  *
10*4d7e907cSAndroid Build Coastguard Worker  * Unless required by applicable law or agreed to in writing, software
11*4d7e907cSAndroid Build Coastguard Worker  * distributed under the License is distributed on an "AS IS" BASIS,
12*4d7e907cSAndroid Build Coastguard Worker  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13*4d7e907cSAndroid Build Coastguard Worker  * See the License for the specific language governing permissions and
14*4d7e907cSAndroid Build Coastguard Worker  * limitations under the License.
15*4d7e907cSAndroid Build Coastguard Worker  */
16*4d7e907cSAndroid Build Coastguard Worker #define LOG_TAG "[email protected]"
17*4d7e907cSAndroid Build Coastguard Worker 
18*4d7e907cSAndroid Build Coastguard Worker #include "CryptoFactory.h"
19*4d7e907cSAndroid Build Coastguard Worker #include <log/log.h>
20*4d7e907cSAndroid Build Coastguard Worker #include "CryptoPlugin.h"
21*4d7e907cSAndroid Build Coastguard Worker #include "LegacyPluginPath.h"
22*4d7e907cSAndroid Build Coastguard Worker #include "TypeConvert.h"
23*4d7e907cSAndroid Build Coastguard Worker 
24*4d7e907cSAndroid Build Coastguard Worker namespace android {
25*4d7e907cSAndroid Build Coastguard Worker namespace hardware {
26*4d7e907cSAndroid Build Coastguard Worker namespace drm {
27*4d7e907cSAndroid Build Coastguard Worker namespace V1_0 {
28*4d7e907cSAndroid Build Coastguard Worker namespace implementation {
29*4d7e907cSAndroid Build Coastguard Worker 
CryptoFactory()30*4d7e907cSAndroid Build Coastguard Worker     CryptoFactory::CryptoFactory() :
31*4d7e907cSAndroid Build Coastguard Worker         loader(getDrmPluginPath(), "createCryptoFactory") {
32*4d7e907cSAndroid Build Coastguard Worker     }
33*4d7e907cSAndroid Build Coastguard Worker 
34*4d7e907cSAndroid Build Coastguard Worker     // Methods from ::android::hardware::drm::V1_0::ICryptoFactory follow.
isCryptoSchemeSupported(const hidl_array<uint8_t,16> & uuid)35*4d7e907cSAndroid Build Coastguard Worker     Return<bool> CryptoFactory::isCryptoSchemeSupported(
36*4d7e907cSAndroid Build Coastguard Worker             const hidl_array<uint8_t, 16>& uuid) {
37*4d7e907cSAndroid Build Coastguard Worker         for (size_t i = 0; i < loader.factoryCount(); i++) {
38*4d7e907cSAndroid Build Coastguard Worker             if (loader.getFactory(i)->isCryptoSchemeSupported(uuid.data())) {
39*4d7e907cSAndroid Build Coastguard Worker                 return true;
40*4d7e907cSAndroid Build Coastguard Worker             }
41*4d7e907cSAndroid Build Coastguard Worker         }
42*4d7e907cSAndroid Build Coastguard Worker         return false;
43*4d7e907cSAndroid Build Coastguard Worker     }
44*4d7e907cSAndroid Build Coastguard Worker 
createPlugin(const hidl_array<uint8_t,16> & uuid,const hidl_vec<uint8_t> & initData,createPlugin_cb _hidl_cb)45*4d7e907cSAndroid Build Coastguard Worker     Return<void> CryptoFactory::createPlugin(const hidl_array<uint8_t, 16>& uuid,
46*4d7e907cSAndroid Build Coastguard Worker             const hidl_vec<uint8_t>& initData, createPlugin_cb _hidl_cb) {
47*4d7e907cSAndroid Build Coastguard Worker         for (size_t i = 0; i < loader.factoryCount(); i++) {
48*4d7e907cSAndroid Build Coastguard Worker             if (loader.getFactory(i)->isCryptoSchemeSupported(uuid.data())) {
49*4d7e907cSAndroid Build Coastguard Worker                 android::CryptoPlugin *legacyPlugin = NULL;
50*4d7e907cSAndroid Build Coastguard Worker                 status_t status = loader.getFactory(i)->createPlugin(uuid.data(),
51*4d7e907cSAndroid Build Coastguard Worker                         initData.data(), initData.size(), &legacyPlugin);
52*4d7e907cSAndroid Build Coastguard Worker                 CryptoPlugin *newPlugin = NULL;
53*4d7e907cSAndroid Build Coastguard Worker                 if (legacyPlugin == NULL) {
54*4d7e907cSAndroid Build Coastguard Worker                     ALOGE("Crypto legacy HAL: failed to create crypto plugin");
55*4d7e907cSAndroid Build Coastguard Worker                 } else {
56*4d7e907cSAndroid Build Coastguard Worker                     newPlugin = new CryptoPlugin(legacyPlugin);
57*4d7e907cSAndroid Build Coastguard Worker                 }
58*4d7e907cSAndroid Build Coastguard Worker                 _hidl_cb(toStatus(status), newPlugin);
59*4d7e907cSAndroid Build Coastguard Worker                 return Void();
60*4d7e907cSAndroid Build Coastguard Worker             }
61*4d7e907cSAndroid Build Coastguard Worker         }
62*4d7e907cSAndroid Build Coastguard Worker         _hidl_cb(Status::ERROR_DRM_CANNOT_HANDLE, NULL);
63*4d7e907cSAndroid Build Coastguard Worker         return Void();
64*4d7e907cSAndroid Build Coastguard Worker     }
65*4d7e907cSAndroid Build Coastguard Worker 
HIDL_FETCH_ICryptoFactory(const char *)66*4d7e907cSAndroid Build Coastguard Worker     ICryptoFactory* HIDL_FETCH_ICryptoFactory(const char* /* name */) {
67*4d7e907cSAndroid Build Coastguard Worker         return new CryptoFactory();
68*4d7e907cSAndroid Build Coastguard Worker     }
69*4d7e907cSAndroid Build Coastguard Worker 
70*4d7e907cSAndroid Build Coastguard Worker }  // namespace implementation
71*4d7e907cSAndroid Build Coastguard Worker }  // namespace V1_0
72*4d7e907cSAndroid Build Coastguard Worker }  // namespace drm
73*4d7e907cSAndroid Build Coastguard Worker }  // namespace hardware
74*4d7e907cSAndroid Build Coastguard Worker }  // namespace android
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