Provisional support for secure decryption of media streams.
Change-Id: Ib3982a9c960bfdb0cb7e1b174440b141b194cfbe
diff --git a/include/media/ICrypto.h b/include/media/ICrypto.h
new file mode 100644
index 0000000..916abe0
--- /dev/null
+++ b/include/media/ICrypto.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+#include <binder/IInterface.h>
+#include <media/stagefright/foundation/ABase.h>
+
+#ifndef ANDROID_ICRYPTO_H_
+
+#define ANDROID_ICRYPTO_H_
+
+namespace android {
+
+struct ICrypto : public IInterface {
+ DECLARE_META_INTERFACE(Crypto);
+
+ virtual status_t initialize() = 0;
+ virtual status_t terminate() = 0;
+
+ virtual status_t setEntitlementKey(
+ const void *key, size_t keyLength) = 0;
+
+ virtual status_t setEntitlementControlMessage(
+ const void *msg, size_t msgLength) = 0;
+
+ // "dstData" is in media_server's address space (but inaccessible).
+ virtual ssize_t decryptVideo(
+ const void *iv, size_t ivLength,
+ const void *srcData, size_t srcDataSize,
+ void *dstData, size_t dstDataOffset) = 0;
+
+ // "dstData" is in the calling process' address space.
+ virtual ssize_t decryptAudio(
+ const void *iv, size_t ivLength,
+ const void *srcData, size_t srcDataSize,
+ void *dstData, size_t dstDataSize) = 0;
+
+private:
+ DISALLOW_EVIL_CONSTRUCTORS(ICrypto);
+};
+
+struct BnCrypto : public BnInterface<ICrypto> {
+ virtual status_t onTransact(
+ uint32_t code, const Parcel &data, Parcel *reply,
+ uint32_t flags = 0);
+};
+
+} // namespace android
+
+#endif // ANDROID_ICRYPTO_H_
+