1 /*
2 * Copyright (C) 2018 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 "hidl_ClearKeyDrmFactory"
19 #include <utils/Log.h>
20
21 #include <utils/Errors.h>
22
23 #include "DrmFactory.h"
24
25 #include "DrmPlugin.h"
26 #include "ClearKeyUUID.h"
27 #include "MimeType.h"
28 #include "SessionLibrary.h"
29
30 namespace android {
31 namespace hardware {
32 namespace drm {
33 namespace V1_2 {
34 namespace clearkey {
35
36 using ::android::hardware::drm::V1_0::Status;
37 using ::android::hardware::drm::V1_1::SecurityLevel;
38 using ::android::hardware::Void;
39
isCryptoSchemeSupported(const hidl_array<uint8_t,16> & uuid)40 Return<bool> DrmFactory::isCryptoSchemeSupported(
41 const hidl_array<uint8_t, 16>& uuid) {
42 return clearkeydrm::isClearKeyUUID(uuid.data());
43 }
44
isCryptoSchemeSupported_1_2(const hidl_array<uint8_t,16> & uuid,const hidl_string & mimeType,SecurityLevel level)45 Return<bool> DrmFactory::isCryptoSchemeSupported_1_2(const hidl_array<uint8_t, 16>& uuid,
46 const hidl_string &mimeType,
47 SecurityLevel level) {
48 return isCryptoSchemeSupported(uuid) && isContentTypeSupported(mimeType) &&
49 level == SecurityLevel::SW_SECURE_CRYPTO;
50 }
51
isContentTypeSupported(const hidl_string & mimeType)52 Return<bool> DrmFactory::isContentTypeSupported(const hidl_string &mimeType) {
53 // This should match the mimeTypes handed by InitDataParser.
54 return mimeType == kIsoBmffVideoMimeType ||
55 mimeType == kIsoBmffAudioMimeType ||
56 mimeType == kCencInitDataFormat ||
57 mimeType == kWebmVideoMimeType ||
58 mimeType == kWebmAudioMimeType ||
59 mimeType == kWebmInitDataFormat;
60 }
61
createPlugin(const hidl_array<uint8_t,16> & uuid,const hidl_string & appPackageName,createPlugin_cb _hidl_cb)62 Return<void> DrmFactory::createPlugin(
63 const hidl_array<uint8_t, 16>& uuid,
64 const hidl_string& appPackageName,
65 createPlugin_cb _hidl_cb) {
66 UNUSED(appPackageName);
67
68 DrmPlugin *plugin = NULL;
69 if (!isCryptoSchemeSupported(uuid.data())) {
70 ALOGE("Clear key Drm HAL: failed to create drm plugin, " \
71 "invalid crypto scheme");
72 _hidl_cb(Status::BAD_VALUE, plugin);
73 return Void();
74 }
75
76 plugin = new DrmPlugin(SessionLibrary::get());
77 _hidl_cb(Status::OK, plugin);
78 return Void();
79 }
80
81 } // namespace clearkey
82 } // namespace V1_2
83 } // namespace drm
84 } // namespace hardware
85 } // namespace android
86