Reorganize drm hal modules
Previously the drm and crypto plugins were separate hals.
This implied a separation of implementation libraries which
causes problems for some drm schemes. The reorganization
combines the hals into a single interface under drm.
Tests: basic gtests passing
Change-Id: I5cde6ff9f60625a0219731c4dbfcaefbd9f27f88
related-to-bug: 32815560
diff --git a/drm/1.0/default/CryptoPlugin.cpp b/drm/1.0/default/CryptoPlugin.cpp
new file mode 100644
index 0000000..073f030
--- /dev/null
+++ b/drm/1.0/default/CryptoPlugin.cpp
@@ -0,0 +1,142 @@
+/*
+ * Copyright (C) 2016 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 "CryptoPlugin.h"
+#include "TypeConvert.h"
+
+#include <android/hidl/memory/1.0/IMemory.h>
+#include <hidlmemory/mapping.h>
+#include <media/stagefright/foundation/AString.h>
+#include <utils/Log.h>
+
+using android::hardware::hidl_memory;
+using android::hidl::memory::V1_0::IMemory;
+
+namespace android {
+namespace hardware {
+namespace drm {
+namespace V1_0 {
+namespace implementation {
+
+ // Methods from ::android::hardware::drm::V1_0::ICryptoPlugin follow
+ Return<bool> CryptoPlugin::requiresSecureDecoderComponent(
+ const hidl_string& mime) {
+ return mLegacyPlugin->requiresSecureDecoderComponent(mime);
+ }
+
+ Return<void> CryptoPlugin::notifyResolution(uint32_t width,
+ uint32_t height) {
+ mLegacyPlugin->notifyResolution(width, height);
+ return Void();
+ }
+
+ Return<Status> CryptoPlugin::setMediaDrmSession(
+ const hidl_vec<uint8_t>& sessionId) {
+ return toStatus(mLegacyPlugin->setMediaDrmSession(toVector(sessionId)));
+ }
+
+ Return<void> CryptoPlugin::setSharedBufferBase(const hidl_memory& base) {
+ mSharedBufferBase = mapMemory(base);
+ return Void();
+ }
+
+ Return<void> CryptoPlugin::decrypt(bool secure,
+ const hidl_array<uint8_t, 16>& keyId,
+ const hidl_array<uint8_t, 16>& iv, Mode mode,
+ const Pattern& pattern, const hidl_vec<SubSample>& subSamples,
+ const SharedBuffer& source, uint64_t offset,
+ const DestinationBuffer& destination,
+ decrypt_cb _hidl_cb) {
+
+ android::CryptoPlugin::Mode legacyMode;
+ switch(mode) {
+ case Mode::UNENCRYPTED:
+ legacyMode = android::CryptoPlugin::kMode_Unencrypted;
+ break;
+ case Mode::AES_CTR:
+ legacyMode = android::CryptoPlugin::kMode_AES_CTR;
+ break;
+ case Mode::AES_CBC_CTS:
+ legacyMode = android::CryptoPlugin::kMode_AES_WV;
+ break;
+ case Mode::AES_CBC:
+ legacyMode = android::CryptoPlugin::kMode_AES_CBC;
+ break;
+ }
+ android::CryptoPlugin::Pattern legacyPattern;
+ legacyPattern.mEncryptBlocks = pattern.encryptBlocks;
+ legacyPattern.mSkipBlocks = pattern.skipBlocks;
+
+ android::CryptoPlugin::SubSample *legacySubSamples =
+ new android::CryptoPlugin::SubSample[subSamples.size()];
+
+ for (size_t i = 0; i < subSamples.size(); i++) {
+ legacySubSamples[i].mNumBytesOfClearData
+ = subSamples[i].numBytesOfClearData;
+ legacySubSamples[i].mNumBytesOfEncryptedData
+ = subSamples[i].numBytesOfEncryptedData;
+ }
+
+ AString detailMessage;
+
+ if (source.offset + offset + source.size > mSharedBufferBase->getSize()) {
+ _hidl_cb(Status::ERROR_DRM_CANNOT_HANDLE, 0, "invalid buffer size");
+ return Void();
+ }
+
+ uint8_t *base = static_cast<uint8_t *>
+ (static_cast<void *>(mSharedBufferBase->getPointer()));
+ void *srcPtr = static_cast<void *>(base + source.offset + offset);
+
+ void *destPtr = NULL;
+ if (destination.type == BufferType::SHARED_MEMORY) {
+ const SharedBuffer& destBuffer = destination.nonsecureMemory;
+ if (destBuffer.offset + destBuffer.size > mSharedBufferBase->getSize()) {
+ _hidl_cb(Status::ERROR_DRM_CANNOT_HANDLE, 0, "invalid buffer size");
+ return Void();
+ }
+ destPtr = static_cast<void *>(base + destination.nonsecureMemory.offset);
+ } else if (destination.type == BufferType::NATIVE_HANDLE) {
+ native_handle_t *handle = const_cast<native_handle_t *>(
+ destination.secureMemory.getNativeHandle());
+ destPtr = static_cast<void *>(handle);
+ }
+ ssize_t result = mLegacyPlugin->decrypt(secure, keyId.data(), iv.data(),
+ legacyMode, legacyPattern, srcPtr, legacySubSamples,
+ subSamples.size(), destPtr, &detailMessage);
+
+ delete[] legacySubSamples;
+
+ uint32_t status;
+ uint32_t bytesWritten;
+
+ if (result >= 0) {
+ status = android::OK;
+ bytesWritten = result;
+ } else {
+ status = -result;
+ bytesWritten = 0;
+ }
+
+ _hidl_cb(toStatus(status), bytesWritten, detailMessage.c_str());
+ return Void();
+ }
+
+} // namespace implementation
+} // namespace V1_0
+} // namespace drm
+} // namespace hardware
+} // namespace android