Add default implementation for CAS AIDL
Bug: 230377377, 227673974
Test: manual
Change-Id: I85015dd6e1a69ff9b57f832f5b1cd01fb65dda25
diff --git a/cas/aidl/default/Android.bp b/cas/aidl/default/Android.bp
new file mode 100755
index 0000000..3c16d57
--- /dev/null
+++ b/cas/aidl/default/Android.bp
@@ -0,0 +1,93 @@
+package {
+ // See: http://go/android-license-faq
+ // A large-scale-change added 'default_applicable_licenses' to import
+ // all of the 'license_kinds' from "hardware_interfaces_license"
+ // to get the below license kinds:
+ // SPDX-license-identifier-Apache-2.0
+ default_applicable_licenses: ["hardware_interfaces_license"],
+}
+
+cc_library_static {
+ name: "libcasexampleimpl",
+ vendor_available: true,
+
+ srcs: [
+ "CasImpl.cpp",
+ "DescramblerImpl.cpp",
+ "MediaCasService.cpp",
+ "SharedLibrary.cpp",
+ "TypeConvert.cpp",
+ ],
+
+ shared_libs: [
+ "android.hardware.cas-V1-ndk",
+ "libbinder_ndk",
+ "liblog",
+ "libutils",
+ "libcutils",
+ ],
+ static_libs: [
+ "libaidlcommonsupport",
+ ],
+ header_libs: [
+ "libstagefright_foundation_headers",
+ "media_plugin_headers",
+ ],
+}
+
+cc_defaults {
+ name: "cas_service_example_defaults",
+ vendor: true,
+ relative_install_path: "hw",
+
+ srcs: ["service.cpp"],
+
+ static_libs: [
+ "libaidlcommonsupport",
+ "libcasexampleimpl",
+ ],
+ shared_libs: [
+ "android.hardware.cas-V1-ndk",
+ "libbinder_ndk",
+ "liblog",
+ "libutils",
+ "libcutils",
+ ],
+ header_libs: ["media_plugin_headers"],
+ vintf_fragments: ["android.hardware.cas-service.xml"],
+}
+
+cc_binary {
+ name: "android.hardware.cas-service.example",
+ defaults: ["cas_service_example_defaults"],
+ init_rc: ["cas-default.rc"],
+}
+
+cc_binary {
+ name: "android.hardware.cas-service.example-lazy",
+ defaults: ["cas_service_example_defaults"],
+ init_rc: ["cas-default-lazy.rc"],
+ cflags: ["-DLAZY_SERVICE"],
+}
+
+cc_fuzz {
+ name: "android.hardware.cas-service_fuzzer",
+ vendor: true,
+
+ defaults: ["service_fuzzer_defaults"],
+ srcs: ["fuzzer.cpp"],
+
+ shared_libs: [
+ "android.hardware.cas-V1-ndk",
+ "libcutils",
+ "liblog",
+ ],
+ static_libs: [
+ "libaidlcommonsupport",
+ "libcasexampleimpl",
+ ],
+ header_libs: ["media_plugin_headers"],
+ fuzz_config: {
+ componentid: 1344,
+ },
+}
diff --git a/cas/aidl/default/CasImpl.cpp b/cas/aidl/default/CasImpl.cpp
new file mode 100755
index 0000000..2d31b35
--- /dev/null
+++ b/cas/aidl/default/CasImpl.cpp
@@ -0,0 +1,242 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ icensed 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_TAG "android.hardware.cas-CasImpl"
+
+#include <media/cas/CasAPI.h>
+#include <utils/Log.h>
+
+#include "CasImpl.h"
+#include "TypeConvert.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace cas {
+
+CasImpl::CasImpl(const shared_ptr<ICasListener>& listener) : mListener(listener) {
+ ALOGV("CTOR");
+}
+
+CasImpl::~CasImpl() {
+ ALOGV("DTOR");
+ release();
+}
+
+// static
+void CasImpl::OnEvent(void* appData, int32_t event, int32_t arg, uint8_t* data, size_t size) {
+ if (appData == NULL) {
+ ALOGE("Invalid appData!");
+ return;
+ }
+ CasImpl* casImpl = static_cast<CasImpl*>(appData);
+ casImpl->onEvent(event, arg, data, size);
+}
+
+// static
+void CasImpl::CallBackExt(void* appData, int32_t event, int32_t arg, uint8_t* data, size_t size,
+ const CasSessionId* sessionId) {
+ if (appData == NULL) {
+ ALOGE("Invalid appData!");
+ return;
+ }
+ CasImpl* casImpl = static_cast<CasImpl*>(appData);
+ casImpl->onEvent(sessionId, event, arg, data, size);
+}
+
+// static
+void CasImpl::StatusUpdate(void* appData, int32_t event, int32_t arg) {
+ if (appData == NULL) {
+ ALOGE("Invalid appData!");
+ return;
+ }
+ CasImpl* casImpl = static_cast<CasImpl*>(appData);
+ casImpl->onStatusUpdate(event, arg);
+}
+
+void CasImpl::init(CasPlugin* plugin) {
+ shared_ptr<CasPlugin> holder(plugin);
+ atomic_store(&mPluginHolder, holder);
+}
+
+void CasImpl::onEvent(int32_t event, int32_t arg, uint8_t* data, size_t size) {
+ if (mListener == NULL) {
+ return;
+ }
+
+ vector<uint8_t> eventData;
+ if (data != NULL) {
+ eventData.assign(data, data + size);
+ }
+
+ mListener->onEvent(event, arg, eventData);
+}
+
+void CasImpl::onEvent(const CasSessionId* sessionId, int32_t event, int32_t arg, uint8_t* data,
+ size_t size) {
+ if (mListener == NULL) {
+ return;
+ }
+
+ vector<uint8_t> eventData;
+ if (data != NULL) {
+ eventData.assign(data, data + size);
+ }
+
+ if (sessionId != NULL) {
+ mListener->onSessionEvent(*sessionId, event, arg, eventData);
+ } else {
+ mListener->onEvent(event, arg, eventData);
+ }
+}
+
+void CasImpl::onStatusUpdate(int32_t event, int32_t arg) {
+ if (mListener == NULL) {
+ return;
+ }
+ mListener->onStatusUpdate(static_cast<StatusEvent>(event), arg);
+}
+
+ScopedAStatus CasImpl::setPluginStatusUpdateCallback() {
+ ALOGV("%s", __FUNCTION__);
+ shared_ptr<CasPlugin> holder = atomic_load(&mPluginHolder);
+ if (holder.get() == nullptr) {
+ return toStatus(INVALID_OPERATION);
+ }
+ return toStatus(holder->setStatusCallback(&CasImpl::StatusUpdate));
+}
+
+ScopedAStatus CasImpl::setPrivateData(const vector<uint8_t>& pvtData) {
+ ALOGV("%s", __FUNCTION__);
+ shared_ptr<CasPlugin> holder = atomic_load(&mPluginHolder);
+ if (holder.get() == nullptr) {
+ return toStatus(INVALID_OPERATION);
+ }
+ return toStatus(holder->setPrivateData(pvtData));
+}
+
+ScopedAStatus CasImpl::openSession(SessionIntent intent, ScramblingMode mode,
+ vector<uint8_t>* sessionId) {
+ ALOGV("%s", __FUNCTION__);
+
+ shared_ptr<CasPlugin> holder = atomic_load(&mPluginHolder);
+ status_t err = INVALID_OPERATION;
+ if (holder.get() != nullptr) {
+ err = holder->openSession(static_cast<uint32_t>(intent), static_cast<uint32_t>(mode),
+ sessionId);
+ holder.reset();
+ }
+
+ return toStatus(err);
+}
+
+ScopedAStatus CasImpl::setSessionPrivateData(const vector<uint8_t>& sessionId,
+ const vector<uint8_t>& pvtData) {
+ ALOGV("%s: sessionId=%s", __FUNCTION__, sessionIdToString(sessionId).string());
+ shared_ptr<CasPlugin> holder = atomic_load(&mPluginHolder);
+ if (holder.get() == nullptr) {
+ return toStatus(INVALID_OPERATION);
+ }
+ return toStatus(holder->setSessionPrivateData(sessionId, pvtData));
+}
+
+ScopedAStatus CasImpl::closeSession(const vector<uint8_t>& sessionId) {
+ ALOGV("%s: sessionId=%s", __FUNCTION__, sessionIdToString(sessionId).string());
+ shared_ptr<CasPlugin> holder = atomic_load(&mPluginHolder);
+ if (holder.get() == nullptr) {
+ return toStatus(INVALID_OPERATION);
+ }
+ return toStatus(holder->closeSession(sessionId));
+}
+
+ScopedAStatus CasImpl::processEcm(const vector<uint8_t>& sessionId, const vector<uint8_t>& ecm) {
+ ALOGV("%s: sessionId=%s", __FUNCTION__, sessionIdToString(sessionId).string());
+ shared_ptr<CasPlugin> holder = atomic_load(&mPluginHolder);
+ if (holder.get() == nullptr) {
+ return toStatus(INVALID_OPERATION);
+ }
+
+ return toStatus(holder->processEcm(sessionId, ecm));
+}
+
+ScopedAStatus CasImpl::processEmm(const vector<uint8_t>& emm) {
+ ALOGV("%s", __FUNCTION__);
+ shared_ptr<CasPlugin> holder = atomic_load(&mPluginHolder);
+ if (holder.get() == nullptr) {
+ return toStatus(INVALID_OPERATION);
+ }
+
+ return toStatus(holder->processEmm(emm));
+}
+
+ScopedAStatus CasImpl::sendEvent(int32_t event, int32_t arg, const vector<uint8_t>& eventData) {
+ ALOGV("%s", __FUNCTION__);
+ shared_ptr<CasPlugin> holder = atomic_load(&mPluginHolder);
+ if (holder.get() == nullptr) {
+ return toStatus(INVALID_OPERATION);
+ }
+
+ status_t err = holder->sendEvent(event, arg, eventData);
+ return toStatus(err);
+}
+
+ScopedAStatus CasImpl::sendSessionEvent(const vector<uint8_t>& sessionId, int32_t event,
+ int32_t arg, const vector<uint8_t>& eventData) {
+ ALOGV("%s", __FUNCTION__);
+ shared_ptr<CasPlugin> holder = atomic_load(&mPluginHolder);
+ if (holder.get() == nullptr) {
+ return toStatus(INVALID_OPERATION);
+ }
+
+ status_t err = holder->sendSessionEvent(sessionId, event, arg, eventData);
+ return toStatus(err);
+}
+
+ScopedAStatus CasImpl::provision(const string& provisionString) {
+ ALOGV("%s: provisionString=%s", __FUNCTION__, provisionString.c_str());
+ shared_ptr<CasPlugin> holder = atomic_load(&mPluginHolder);
+ if (holder.get() == nullptr) {
+ return toStatus(INVALID_OPERATION);
+ }
+
+ return toStatus(holder->provision(String8(provisionString.c_str())));
+}
+
+ScopedAStatus CasImpl::refreshEntitlements(int32_t refreshType,
+ const vector<uint8_t>& refreshData) {
+ ALOGV("%s", __FUNCTION__);
+ shared_ptr<CasPlugin> holder = atomic_load(&mPluginHolder);
+ if (holder.get() == nullptr) {
+ return toStatus(INVALID_OPERATION);
+ }
+
+ status_t err = holder->refreshEntitlements(refreshType, refreshData);
+ return toStatus(err);
+}
+
+ScopedAStatus CasImpl::release() {
+ ALOGV("%s: plugin=%p", __FUNCTION__, mPluginHolder.get());
+
+ shared_ptr<CasPlugin> holder(nullptr);
+ atomic_store(&mPluginHolder, holder);
+
+ return ScopedAStatus::ok();
+}
+
+} // namespace cas
+} // namespace hardware
+} // namespace android
+} // namespace aidl
diff --git a/cas/aidl/default/CasImpl.h b/cas/aidl/default/CasImpl.h
new file mode 100755
index 0000000..84a8115
--- /dev/null
+++ b/cas/aidl/default/CasImpl.h
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2022 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 <aidl/android/hardware/cas/BnCas.h>
+#include <aidl/android/hardware/cas/ICasListener.h>
+#include <media/stagefright/foundation/ABase.h>
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace cas {
+
+using namespace ::android;
+using namespace std;
+using ndk::ScopedAStatus;
+
+class CasImpl : public BnCas {
+ public:
+ CasImpl(const shared_ptr<ICasListener>& listener);
+ virtual ~CasImpl();
+
+ static void OnEvent(void* appData, int32_t event, int32_t arg, uint8_t* data, size_t size);
+
+ static void CallBackExt(void* appData, int32_t event, int32_t arg, uint8_t* data, size_t size,
+ const CasSessionId* sessionId);
+
+ static void StatusUpdate(void* appData, int32_t event, int32_t arg);
+
+ void init(CasPlugin* plugin);
+ void onEvent(int32_t event, int32_t arg, uint8_t* data, size_t size);
+
+ void onEvent(const CasSessionId* sessionId, int32_t event, int32_t arg, uint8_t* data,
+ size_t size);
+
+ void onStatusUpdate(int32_t event, int32_t arg);
+
+ // ICas inherits
+
+ ScopedAStatus setPluginStatusUpdateCallback();
+
+ virtual ScopedAStatus setPrivateData(const vector<uint8_t>& pvtData) override;
+
+ virtual ScopedAStatus openSession(SessionIntent intent, ScramblingMode mode,
+ vector<uint8_t>* sessionId) override;
+
+ virtual ScopedAStatus closeSession(const vector<uint8_t>& sessionId) override;
+
+ virtual ScopedAStatus setSessionPrivateData(const vector<uint8_t>& sessionId,
+ const vector<uint8_t>& pvtData) override;
+
+ virtual ScopedAStatus processEcm(const vector<uint8_t>& sessionId,
+ const vector<uint8_t>& ecm) override;
+
+ virtual ScopedAStatus processEmm(const vector<uint8_t>& emm) override;
+
+ virtual ScopedAStatus sendEvent(int32_t event, int32_t arg,
+ const vector<uint8_t>& eventData) override;
+
+ virtual ScopedAStatus sendSessionEvent(const vector<uint8_t>& sessionId, int32_t event,
+ int32_t arg, const vector<uint8_t>& eventData) override;
+
+ virtual ScopedAStatus provision(const string& provisionString) override;
+
+ virtual ScopedAStatus refreshEntitlements(int32_t refreshType,
+ const vector<uint8_t>& refreshData) override;
+
+ virtual ScopedAStatus release() override;
+
+ private:
+ struct PluginHolder;
+ shared_ptr<CasPlugin> mPluginHolder;
+ shared_ptr<ICasListener> mListener;
+
+ DISALLOW_EVIL_CONSTRUCTORS(CasImpl);
+};
+
+} // namespace cas
+} // namespace hardware
+} // namespace android
+} // namespace aidl
diff --git a/cas/aidl/default/DescramblerImpl.cpp b/cas/aidl/default/DescramblerImpl.cpp
new file mode 100755
index 0000000..a96fd46
--- /dev/null
+++ b/cas/aidl/default/DescramblerImpl.cpp
@@ -0,0 +1,193 @@
+/*
+ * Copyright (C) 2022 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_TAG "android.hardware.cas-DescramblerImpl"
+
+#include <aidlcommonsupport/NativeHandle.h>
+#include <inttypes.h>
+#include <media/cas/DescramblerAPI.h>
+#include <media/hardware/CryptoAPI.h>
+#include <media/stagefright/foundation/AUtils.h>
+#include <sys/mman.h>
+#include <utils/Log.h>
+
+#include "DescramblerImpl.h"
+#include "TypeConvert.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace cas {
+
+#define CHECK_SUBSAMPLE_DEF(type) \
+ static_assert(sizeof(SubSample) == sizeof(type::SubSample), "SubSample: size doesn't match"); \
+ static_assert(offsetof(SubSample, numBytesOfClearData) == \
+ offsetof(type::SubSample, mNumBytesOfClearData), \
+ "SubSample: numBytesOfClearData offset doesn't match"); \
+ static_assert(offsetof(SubSample, numBytesOfEncryptedData) == \
+ offsetof(type::SubSample, mNumBytesOfEncryptedData), \
+ "SubSample: numBytesOfEncryptedData offset doesn't match")
+
+CHECK_SUBSAMPLE_DEF(DescramblerPlugin);
+CHECK_SUBSAMPLE_DEF(CryptoPlugin);
+
+DescramblerImpl::DescramblerImpl(DescramblerPlugin* plugin) : mPluginHolder(plugin) {
+ ALOGV("CTOR: plugin=%p", mPluginHolder.get());
+}
+
+DescramblerImpl::~DescramblerImpl() {
+ ALOGV("DTOR: plugin=%p", mPluginHolder.get());
+ release();
+}
+
+ScopedAStatus DescramblerImpl::setMediaCasSession(const vector<uint8_t>& in_sessionId) {
+ ALOGV("%s: sessionId=%s", __FUNCTION__, sessionIdToString(in_sessionId).string());
+
+ shared_ptr<DescramblerPlugin> holder = atomic_load(&mPluginHolder);
+ if (holder.get() == nullptr) {
+ return toStatus(INVALID_OPERATION);
+ }
+
+ return toStatus(holder->setMediaCasSession(in_sessionId));
+}
+
+ScopedAStatus DescramblerImpl::requiresSecureDecoderComponent(const string& in_mime,
+ bool* _aidl_return) {
+ shared_ptr<DescramblerPlugin> holder = atomic_load(&mPluginHolder);
+ if (holder.get() == nullptr) {
+ *_aidl_return = false;
+ }
+
+ *_aidl_return = holder->requiresSecureDecoderComponent(String8(in_mime.c_str()));
+ return ScopedAStatus::ok();
+}
+
+static inline bool validateRangeForSize(int64_t offset, int64_t length, int64_t size) {
+ return isInRange<int64_t, uint64_t>(0, (uint64_t)size, offset, (uint64_t)length);
+}
+
+ScopedAStatus DescramblerImpl::descramble(ScramblingControl scramblingControl,
+ const vector<SubSample>& subSamples,
+ const SharedBuffer& srcBuffer, int64_t srcOffset,
+ const DestinationBuffer& dstBuffer, int64_t dstOffset,
+ int32_t* _aidl_return) {
+ ALOGV("%s", __FUNCTION__);
+
+ // heapbase's size is stored in int64_t, but mapMemory's mmap will map size in
+ // size_t. If size is over SIZE_MAX, mapMemory mapMemory could succeed but the
+ // mapped memory's actual size will be smaller than the reported size.
+ if (srcBuffer.heapBase.size > SIZE_MAX) {
+ ALOGE("Invalid memory size: %" PRIu64 "", srcBuffer.heapBase.size);
+ android_errorWriteLog(0x534e4554, "79376389");
+ return toStatus(BAD_VALUE);
+ }
+
+ void* srcPtr = mmap(NULL, srcBuffer.heapBase.size, PROT_READ | PROT_WRITE, MAP_SHARED,
+ srcBuffer.heapBase.fd.get(), 0);
+
+ // Validate if the offset and size in the SharedBuffer is consistent with the
+ // mapped heapbase, since the offset and size is controlled by client.
+ if (srcPtr == NULL) {
+ ALOGE("Failed to map src buffer.");
+ return toStatus(BAD_VALUE);
+ }
+ if (!validateRangeForSize(srcBuffer.offset, srcBuffer.size, srcBuffer.heapBase.size)) {
+ ALOGE("Invalid src buffer range: offset %" PRIu64 ", size %" PRIu64
+ ", srcMem"
+ "size %" PRIu64 "",
+ srcBuffer.offset, srcBuffer.size, srcBuffer.heapBase.size);
+ android_errorWriteLog(0x534e4554, "67962232");
+ return toStatus(BAD_VALUE);
+ }
+
+ // use 64-bit here to catch bad subsample size that might be overflowing.
+ uint64_t totalBytesInSubSamples = 0;
+ for (size_t i = 0; i < subSamples.size(); i++) {
+ uint32_t numBytesOfClearData = subSamples[i].numBytesOfClearData;
+ uint32_t numBytesOfEncryptedData = subSamples[i].numBytesOfEncryptedData;
+ totalBytesInSubSamples += (uint64_t)numBytesOfClearData + numBytesOfEncryptedData;
+ }
+ // Further validate if the specified srcOffset and requested total subsample size
+ // is consistent with the source shared buffer size.
+ if (!validateRangeForSize(srcOffset, totalBytesInSubSamples, srcBuffer.size)) {
+ ALOGE("Invalid srcOffset and subsample size: "
+ "srcOffset %" PRIu64 ", totalBytesInSubSamples %" PRIu64
+ ", srcBuffer"
+ "size %" PRIu64 "",
+ srcOffset, totalBytesInSubSamples, srcBuffer.size);
+ android_errorWriteLog(0x534e4554, "67962232");
+ return toStatus(BAD_VALUE);
+ }
+ srcPtr = (uint8_t*)srcPtr + srcBuffer.offset;
+
+ void* dstPtr = NULL;
+ if (dstBuffer.getTag() == DestinationBuffer::Tag::nonsecureMemory) {
+ // When using shared memory, src buffer is also used as dst,
+ // we don't map it again here.
+ dstPtr = srcPtr;
+
+ // In this case the dst and src would be the same buffer, need to validate
+ // dstOffset against the buffer size too.
+ if (!validateRangeForSize(dstOffset, totalBytesInSubSamples, srcBuffer.size)) {
+ ALOGE("Invalid dstOffset and subsample size: "
+ "dstOffset %" PRIu64 ", totalBytesInSubSamples %" PRIu64
+ ", srcBuffer"
+ "size %" PRIu64 "",
+ dstOffset, totalBytesInSubSamples, srcBuffer.size);
+ android_errorWriteLog(0x534e4554, "67962232");
+ return toStatus(BAD_VALUE);
+ }
+ } else {
+ native_handle_t* handle = makeFromAidl(dstBuffer.get<DestinationBuffer::secureMemory>());
+ dstPtr = static_cast<void*>(handle);
+ }
+
+ // Get a local copy of the shared_ptr for the plugin. Note that before
+ // calling the callback, this shared_ptr must be manually reset, since
+ // the client side could proceed as soon as the callback is called
+ // without waiting for this method to go out of scope.
+ shared_ptr<DescramblerPlugin> holder = atomic_load(&mPluginHolder);
+ if (holder.get() == nullptr) {
+ return toStatus(INVALID_OPERATION);
+ }
+
+ // Casting SubSample to DescramblerPlugin::SubSample, but need to ensure
+ // structs are actually identical
+
+ auto returnStatus =
+ holder->descramble(dstBuffer.getTag() != DestinationBuffer::Tag::nonsecureMemory,
+ (DescramblerPlugin::ScramblingControl)scramblingControl,
+ subSamples.size(), (DescramblerPlugin::SubSample*)subSamples.data(),
+ srcPtr, srcOffset, dstPtr, dstOffset, NULL);
+
+ holder.reset();
+ *_aidl_return = returnStatus;
+ return toStatus(returnStatus >= 0 ? OK : returnStatus);
+}
+
+ScopedAStatus DescramblerImpl::release() {
+ ALOGV("%s: plugin=%p", __FUNCTION__, mPluginHolder.get());
+
+ shared_ptr<DescramblerPlugin> holder(nullptr);
+ atomic_store(&mPluginHolder, holder);
+
+ return ScopedAStatus::ok();
+}
+
+} // namespace cas
+} // namespace hardware
+} // namespace android
+} // namespace aidl
diff --git a/cas/aidl/default/DescramblerImpl.h b/cas/aidl/default/DescramblerImpl.h
new file mode 100755
index 0000000..2efc1a0
--- /dev/null
+++ b/cas/aidl/default/DescramblerImpl.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2022 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 <aidl/android/hardware/cas/BnDescrambler.h>
+#include <media/stagefright/foundation/ABase.h>
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace cas {
+
+using namespace ::android;
+using namespace std;
+using ndk::ScopedAStatus;
+
+class DescramblerImpl : public BnDescrambler {
+ public:
+ DescramblerImpl(DescramblerPlugin* plugin);
+ virtual ~DescramblerImpl();
+
+ virtual ScopedAStatus setMediaCasSession(const vector<uint8_t>& in_sessionId) override;
+
+ virtual ScopedAStatus requiresSecureDecoderComponent(const string& in_mime,
+ bool* _aidl_return) override;
+
+ virtual ScopedAStatus descramble(ScramblingControl in_scramblingControl,
+ const vector<SubSample>& in_subSamples,
+ const SharedBuffer& in_srcBuffer, int64_t in_srcOffset,
+ const DestinationBuffer& in_dstBuffer, int64_t in_dstOffset,
+ int32_t* _aidl_return) override;
+
+ virtual ScopedAStatus release() override;
+
+ private:
+ shared_ptr<DescramblerPlugin> mPluginHolder;
+
+ DISALLOW_EVIL_CONSTRUCTORS(DescramblerImpl);
+};
+
+} // namespace cas
+} // namespace hardware
+} // namespace android
+} // namespace aidl
diff --git a/cas/aidl/default/FactoryLoader.h b/cas/aidl/default/FactoryLoader.h
new file mode 100755
index 0000000..f90b109
--- /dev/null
+++ b/cas/aidl/default/FactoryLoader.h
@@ -0,0 +1,219 @@
+/*
+ * Copyright (C) 2022 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 <dirent.h>
+#include <dlfcn.h>
+#include <media/cas/CasAPI.h>
+#include <utils/KeyedVector.h>
+#include <utils/Mutex.h>
+#include "SharedLibrary.h"
+
+using namespace std;
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace cas {
+
+using namespace ::android;
+
+template <class T>
+class FactoryLoader {
+ public:
+ FactoryLoader(const char* name) : mFactory(NULL), mCreateFactoryFuncName(name) {}
+
+ virtual ~FactoryLoader() { closeFactory(); }
+
+ bool findFactoryForScheme(int32_t CA_system_id, shared_ptr<SharedLibrary>* library = NULL,
+ T** factory = NULL);
+
+ bool enumeratePlugins(vector<AidlCasPluginDescriptor>* results);
+
+ private:
+ typedef T* (*CreateFactoryFunc)();
+
+ Mutex mMapLock;
+ T* mFactory;
+ const char* mCreateFactoryFuncName;
+ shared_ptr<SharedLibrary> mLibrary;
+ KeyedVector<int32_t, String8> mCASystemIdToLibraryPathMap;
+ KeyedVector<String8, shared_ptr<SharedLibrary>> mLibraryPathToOpenLibraryMap;
+
+ bool loadFactoryForSchemeFromPath(const String8& path, int32_t CA_system_id,
+ shared_ptr<SharedLibrary>* library, T** factory);
+
+ bool queryPluginsFromPath(const String8& path, vector<AidlCasPluginDescriptor>* results);
+
+ bool openFactory(const String8& path);
+ void closeFactory();
+};
+
+template <class T>
+bool FactoryLoader<T>::findFactoryForScheme(int32_t CA_system_id,
+ shared_ptr<SharedLibrary>* library, T** factory) {
+ if (library != NULL) {
+ library->reset();
+ }
+ if (factory != NULL) {
+ *factory = NULL;
+ }
+
+ Mutex::Autolock autoLock(mMapLock);
+
+ // first check cache
+ ssize_t index = mCASystemIdToLibraryPathMap.indexOfKey(CA_system_id);
+ if (index >= 0) {
+ return loadFactoryForSchemeFromPath(mCASystemIdToLibraryPathMap[index], CA_system_id,
+ library, factory);
+ }
+
+ // no luck, have to search
+#ifdef __LP64__
+ String8 dirPath("/vendor/lib64/mediacas");
+#else
+ String8 dirPath("/vendor/lib/mediacas");
+#endif
+ DIR* pDir = opendir(dirPath.string());
+
+ if (pDir == NULL) {
+ ALOGE("Failed to open plugin directory %s", dirPath.string());
+ return false;
+ }
+
+ struct dirent* pEntry;
+ while ((pEntry = readdir(pDir))) {
+ String8 pluginPath = dirPath + "/" + pEntry->d_name;
+ if (pluginPath.getPathExtension() == ".so") {
+ if (loadFactoryForSchemeFromPath(pluginPath, CA_system_id, library, factory)) {
+ mCASystemIdToLibraryPathMap.add(CA_system_id, pluginPath);
+ closedir(pDir);
+
+ return true;
+ }
+ }
+ }
+
+ closedir(pDir);
+
+ ALOGE("Failed to find plugin");
+ return false;
+}
+
+template <class T>
+bool FactoryLoader<T>::enumeratePlugins(vector<AidlCasPluginDescriptor>* results) {
+ ALOGI("enumeratePlugins");
+
+ results->clear();
+
+#ifdef __LP64__
+ String8 dirPath("/vendor/lib64/mediacas");
+#else
+ String8 dirPath("/vendor/lib/mediacas");
+#endif
+ DIR* pDir = opendir(dirPath.string());
+
+ if (pDir == NULL) {
+ ALOGE("Failed to open plugin directory %s", dirPath.string());
+ return false;
+ }
+
+ Mutex::Autolock autoLock(mMapLock);
+
+ struct dirent* pEntry;
+ while ((pEntry = readdir(pDir))) {
+ String8 pluginPath = dirPath + "/" + pEntry->d_name;
+ if (pluginPath.getPathExtension() == ".so") {
+ queryPluginsFromPath(pluginPath, results);
+ }
+ }
+ return true;
+}
+
+template <class T>
+bool FactoryLoader<T>::loadFactoryForSchemeFromPath(const String8& path, int32_t CA_system_id,
+ shared_ptr<SharedLibrary>* library,
+ T** factory) {
+ closeFactory();
+
+ if (!openFactory(path) || !mFactory->isSystemIdSupported(CA_system_id)) {
+ closeFactory();
+ return false;
+ }
+
+ if (library != NULL) {
+ *library = mLibrary;
+ }
+ if (factory != NULL) {
+ *factory = mFactory;
+ }
+ return true;
+}
+
+template <class T>
+bool FactoryLoader<T>::queryPluginsFromPath(const String8& path,
+ vector<AidlCasPluginDescriptor>* results) {
+ closeFactory();
+
+ vector<CasPluginDescriptor> descriptors;
+ if (!openFactory(path) || mFactory->queryPlugins(&descriptors) != OK) {
+ closeFactory();
+ return false;
+ }
+
+ for (auto it = descriptors.begin(); it != descriptors.end(); it++) {
+ results->push_back(
+ AidlCasPluginDescriptor{.caSystemId = it->CA_system_id, .name = it->name.c_str()});
+ }
+ return true;
+}
+
+template <class T>
+bool FactoryLoader<T>::openFactory(const String8& path) {
+ // get strong pointer to open shared library
+ ssize_t index = mLibraryPathToOpenLibraryMap.indexOfKey(path);
+ if (index >= 0) {
+ mLibrary = mLibraryPathToOpenLibraryMap[index];
+ } else {
+ index = mLibraryPathToOpenLibraryMap.add(path, NULL);
+ }
+
+ if (!mLibrary.get()) {
+ mLibrary = ::ndk::SharedRefBase::make<SharedLibrary>(path);
+ if (!*mLibrary) {
+ return false;
+ }
+
+ mLibraryPathToOpenLibraryMap.replaceValueAt(index, mLibrary);
+ }
+
+ CreateFactoryFunc createFactory = (CreateFactoryFunc)mLibrary->lookup(mCreateFactoryFuncName);
+ if (createFactory == NULL || (mFactory = createFactory()) == NULL) {
+ return false;
+ }
+ return true;
+}
+
+template <class T>
+void FactoryLoader<T>::closeFactory() {
+ delete mFactory;
+ mFactory = NULL;
+ mLibrary.reset();
+}
+
+} // namespace cas
+} // namespace hardware
+} // namespace android
+} // namespace aidl
diff --git a/cas/aidl/default/MediaCasService.cpp b/cas/aidl/default/MediaCasService.cpp
new file mode 100755
index 0000000..8285613
--- /dev/null
+++ b/cas/aidl/default/MediaCasService.cpp
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2022 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_TAG "android.hardware.cas-MediaCasService"
+
+#include <media/cas/CasAPI.h>
+#include <media/cas/DescramblerAPI.h>
+#include <utils/Log.h>
+
+#include "CasImpl.h"
+#include "DescramblerImpl.h"
+#include "MediaCasService.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace cas {
+
+MediaCasService::MediaCasService()
+ : mCasLoader("createCasFactory"), mDescramblerLoader("createDescramblerFactory") {}
+
+MediaCasService::~MediaCasService() {}
+
+ScopedAStatus MediaCasService::enumeratePlugins(
+ vector<AidlCasPluginDescriptor>* aidlCasPluginDescriptors) {
+ ALOGV("%s", __FUNCTION__);
+
+ mCasLoader.enumeratePlugins(aidlCasPluginDescriptors);
+ return ScopedAStatus::ok();
+}
+
+ScopedAStatus MediaCasService::isSystemIdSupported(int32_t CA_system_id, bool* _aidl_return) {
+ ALOGV("isSystemIdSupported: CA_system_id=%d", CA_system_id);
+
+ *_aidl_return = mCasLoader.findFactoryForScheme(CA_system_id);
+ return ScopedAStatus::ok();
+}
+
+ScopedAStatus MediaCasService::createPlugin(int32_t CA_system_id,
+ const shared_ptr<ICasListener>& listener,
+ shared_ptr<ICas>* _aidl_return) {
+ ALOGV("%s: CA_system_id=%d", __FUNCTION__, CA_system_id);
+ if (listener == NULL) ALOGV("%s: Listener is NULL", __FUNCTION__);
+
+ CasFactory* factory;
+ shared_ptr<SharedLibrary> library;
+ if (mCasLoader.findFactoryForScheme(CA_system_id, &library, &factory)) {
+ CasPlugin* plugin = NULL;
+ shared_ptr<CasImpl> casImpl = ::ndk::SharedRefBase::make<CasImpl>(listener);
+ if (factory->createPlugin(CA_system_id, casImpl.get(), &CasImpl::CallBackExt, &plugin) ==
+ OK &&
+ plugin != NULL) {
+ casImpl->init(plugin);
+ *_aidl_return = casImpl;
+ casImpl->setPluginStatusUpdateCallback();
+ }
+ }
+
+ return ScopedAStatus::ok();
+}
+
+ScopedAStatus MediaCasService::isDescramblerSupported(int32_t CA_system_id, bool* _aidl_return) {
+ ALOGV("%s: CA_system_id=%d", __FUNCTION__, CA_system_id);
+
+ *_aidl_return = mDescramblerLoader.findFactoryForScheme(CA_system_id);
+ return ScopedAStatus::ok();
+}
+
+ScopedAStatus MediaCasService::createDescrambler(int32_t CA_system_id,
+ shared_ptr<IDescrambler>* _aidl_return) {
+ ALOGV("%s: CA_system_id=%d", __FUNCTION__, CA_system_id);
+
+ DescramblerFactory* factory;
+ shared_ptr<SharedLibrary> library;
+ if (mDescramblerLoader.findFactoryForScheme(CA_system_id, &library, &factory)) {
+ DescramblerPlugin* plugin = NULL;
+ if (factory->createPlugin(CA_system_id, &plugin) == OK && plugin != NULL) {
+ *_aidl_return = ::ndk::SharedRefBase::make<DescramblerImpl>(plugin);
+ }
+ }
+
+ return ScopedAStatus::ok();
+}
+
+} // namespace cas
+} // namespace hardware
+} // namespace android
+} // namespace aidl
diff --git a/cas/aidl/default/MediaCasService.h b/cas/aidl/default/MediaCasService.h
new file mode 100755
index 0000000..9662313
--- /dev/null
+++ b/cas/aidl/default/MediaCasService.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2022 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 <aidl/android/hardware/cas/BnMediaCasService.h>
+#include <media/cas/DescramblerAPI.h>
+
+#include "FactoryLoader.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace cas {
+
+using namespace ::android;
+using namespace std;
+using ndk::ScopedAStatus;
+
+class MediaCasService : public BnMediaCasService {
+ public:
+ MediaCasService();
+
+ virtual ScopedAStatus enumeratePlugins(
+ vector<AidlCasPluginDescriptor>* aidlCasPluginDescriptors) override;
+
+ virtual ScopedAStatus isSystemIdSupported(int32_t in_CA_system_id, bool* _aidl_return) override;
+
+ virtual ScopedAStatus createPlugin(int32_t in_CA_system_id,
+ const shared_ptr<ICasListener>& in_listener,
+ shared_ptr<ICas>* _aidl_return) override;
+
+ virtual ScopedAStatus isDescramblerSupported(int32_t in_CA_system_id,
+ bool* _aidl_return) override;
+
+ virtual ScopedAStatus createDescrambler(int32_t in_CA_system_id,
+ shared_ptr<IDescrambler>* _aidl_return) override;
+
+ private:
+ FactoryLoader<CasFactory> mCasLoader;
+ FactoryLoader<DescramblerFactory> mDescramblerLoader;
+
+ virtual ~MediaCasService();
+};
+
+} // namespace cas
+} // namespace hardware
+} // namespace android
+} // namespace aidl
diff --git a/cas/aidl/default/OWNERS b/cas/aidl/default/OWNERS
new file mode 100755
index 0000000..4c55752
--- /dev/null
+++ b/cas/aidl/default/OWNERS
@@ -0,0 +1,3 @@
+# Bug component: 1344
+quxiangfang@google.com
+hgchen@google.com
diff --git a/cas/aidl/default/SharedLibrary.cpp b/cas/aidl/default/SharedLibrary.cpp
new file mode 100755
index 0000000..e79f383
--- /dev/null
+++ b/cas/aidl/default/SharedLibrary.cpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2022 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_TAG "android.hardware.cas-SharedLibrary"
+
+#include "SharedLibrary.h"
+#include <dlfcn.h>
+#include <utils/Log.h>
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace cas {
+
+SharedLibrary::SharedLibrary(const String8& path) {
+ mLibHandle = dlopen(path.string(), RTLD_NOW);
+}
+
+SharedLibrary::~SharedLibrary() {
+ if (mLibHandle != NULL) {
+ dlclose(mLibHandle);
+ mLibHandle = NULL;
+ }
+}
+
+bool SharedLibrary::operator!() const {
+ return mLibHandle == NULL;
+}
+
+void* SharedLibrary::lookup(const char* symbol) const {
+ if (!mLibHandle) {
+ return NULL;
+ }
+ // Clear last error before we load the symbol again,
+ // in case the caller didn't retrieve it.
+ (void)dlerror();
+ return dlsym(mLibHandle, symbol);
+}
+
+const char* SharedLibrary::lastError() const {
+ const char* error = dlerror();
+ return error ? error : "No errors or unknown error";
+}
+
+} // namespace cas
+} // namespace hardware
+} // namespace android
+} // namespace aidl
diff --git a/cas/aidl/default/SharedLibrary.h b/cas/aidl/default/SharedLibrary.h
new file mode 100755
index 0000000..d367866
--- /dev/null
+++ b/cas/aidl/default/SharedLibrary.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2022 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 <android/binder_interface_utils.h>
+#include <media/stagefright/foundation/ABase.h>
+#include <utils/String8.h>
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace cas {
+
+using namespace ::android;
+
+class SharedLibrary : public ndk::SharedRefBase {
+ public:
+ explicit SharedLibrary(const String8& path);
+ ~SharedLibrary();
+
+ bool operator!() const;
+ void* lookup(const char* symbol) const;
+ const char* lastError() const;
+
+ private:
+ void* mLibHandle;
+ DISALLOW_EVIL_CONSTRUCTORS(SharedLibrary);
+};
+
+} // namespace cas
+} // namespace hardware
+} // namespace android
+} // namespace aidl
diff --git a/cas/aidl/default/TypeConvert.cpp b/cas/aidl/default/TypeConvert.cpp
new file mode 100755
index 0000000..4f7005f
--- /dev/null
+++ b/cas/aidl/default/TypeConvert.cpp
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2022 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_TAG "android.hardware.cas-TypeConvert"
+
+#include <aidl/android/hardware/cas/Status.h>
+#include <utils/Log.h>
+
+#include "TypeConvert.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace cas {
+
+ScopedAStatus toStatus(status_t legacyStatus) {
+ int status;
+ switch (legacyStatus) {
+ case OK:
+ return ndk::ScopedAStatus::ok();
+ case ERROR_CAS_NO_LICENSE:
+ status = Status::ERROR_CAS_NO_LICENSE;
+ break;
+ case ERROR_CAS_LICENSE_EXPIRED:
+ status = Status::ERROR_CAS_LICENSE_EXPIRED;
+ break;
+ case ERROR_CAS_SESSION_NOT_OPENED:
+ status = Status::ERROR_CAS_SESSION_NOT_OPENED;
+ break;
+ case ERROR_CAS_CANNOT_HANDLE:
+ status = Status::ERROR_CAS_CANNOT_HANDLE;
+ break;
+ case ERROR_CAS_TAMPER_DETECTED:
+ status = Status::ERROR_CAS_INVALID_STATE;
+ break;
+ case BAD_VALUE:
+ status = Status::BAD_VALUE;
+ break;
+ case ERROR_CAS_NOT_PROVISIONED:
+ status = Status::ERROR_CAS_NOT_PROVISIONED;
+ break;
+ case ERROR_CAS_RESOURCE_BUSY:
+ status = Status::ERROR_CAS_RESOURCE_BUSY;
+ break;
+ case ERROR_CAS_INSUFFICIENT_OUTPUT_PROTECTION:
+ status = Status::ERROR_CAS_INSUFFICIENT_OUTPUT_PROTECTION;
+ break;
+ case ERROR_CAS_DEVICE_REVOKED:
+ status = Status::ERROR_CAS_DEVICE_REVOKED;
+ break;
+ case ERROR_CAS_DECRYPT_UNIT_NOT_INITIALIZED:
+ status = Status::ERROR_CAS_DECRYPT_UNIT_NOT_INITIALIZED;
+ break;
+ case ERROR_CAS_DECRYPT:
+ status = Status::ERROR_CAS_DECRYPT;
+ break;
+ case ERROR_CAS_NEED_ACTIVATION:
+ status = Status::ERROR_CAS_NEED_ACTIVATION;
+ break;
+ case ERROR_CAS_NEED_PAIRING:
+ status = Status::ERROR_CAS_NEED_PAIRING;
+ break;
+ case ERROR_CAS_NO_CARD:
+ status = Status::ERROR_CAS_NO_CARD;
+ break;
+ case ERROR_CAS_CARD_MUTE:
+ status = Status::ERROR_CAS_CARD_MUTE;
+ break;
+ case ERROR_CAS_CARD_INVALID:
+ status = Status::ERROR_CAS_CARD_INVALID;
+ break;
+ case ERROR_CAS_BLACKOUT:
+ status = Status::ERROR_CAS_BLACKOUT;
+ break;
+ default:
+ ALOGW("Unable to convert legacy status: %d, defaulting to UNKNOWN", legacyStatus);
+ status = Status::ERROR_CAS_UNKNOWN;
+ break;
+ }
+ return ScopedAStatus::fromServiceSpecificError(status);
+}
+
+String8 sessionIdToString(const std::vector<uint8_t>& sessionId) {
+ String8 result;
+ for (auto it = sessionId.begin(); it != sessionId.end(); it++) {
+ result.appendFormat("%02x ", *it);
+ }
+ if (result.isEmpty()) {
+ result.append("(null)");
+ }
+ return result;
+}
+
+} // namespace cas
+} // namespace hardware
+} // namespace android
+} // namespace aidl
diff --git a/cas/aidl/default/TypeConvert.h b/cas/aidl/default/TypeConvert.h
new file mode 100755
index 0000000..ebfa286
--- /dev/null
+++ b/cas/aidl/default/TypeConvert.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2022 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 <android/binder_interface_utils.h>
+#include <media/stagefright/MediaErrors.h>
+#include <utils/String8.h>
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace cas {
+
+using namespace ::android;
+using ndk::ScopedAStatus;
+
+ScopedAStatus toStatus(status_t legacyStatus);
+
+String8 sessionIdToString(const std::vector<uint8_t>& sessionId);
+
+} // namespace cas
+} // namespace hardware
+} // namespace android
+} // namespace aidl
diff --git a/cas/aidl/default/android.hardware.cas-service.xml b/cas/aidl/default/android.hardware.cas-service.xml
new file mode 100755
index 0000000..6389fe2
--- /dev/null
+++ b/cas/aidl/default/android.hardware.cas-service.xml
@@ -0,0 +1,6 @@
+<manifest version="1.0" type="device">
+ <hal format="aidl">
+ <name>android.hardware.cas</name>
+ <fqname>IMediaCasService/default</fqname>
+ </hal>
+</manifest>
diff --git a/cas/aidl/default/cas-default-lazy.rc b/cas/aidl/default/cas-default-lazy.rc
new file mode 100755
index 0000000..60b59ca
--- /dev/null
+++ b/cas/aidl/default/cas-default-lazy.rc
@@ -0,0 +1,9 @@
+service vendor.cas-default-lazy /vendor/bin/hw/android.hardware.cas-service.example-lazy
+ interface aidl android.hardware.cas.IMediaCasService/default
+ class hal
+ user media
+ group mediadrm drmrpc
+ ioprio rt 4
+ task_profiles ProcessCapacityHigh
+ oneshot
+ disabled
diff --git a/cas/aidl/default/cas-default.rc b/cas/aidl/default/cas-default.rc
new file mode 100755
index 0000000..e00b9c5
--- /dev/null
+++ b/cas/aidl/default/cas-default.rc
@@ -0,0 +1,7 @@
+service vendor.cas-default /vendor/bin/hw/android.hardware.cas-service.example
+ interface aidl android.hardware.cas.IMediaCasService/default
+ class hal
+ user media
+ group mediadrm drmrpc
+ ioprio rt 4
+ task_profiles ProcessCapacityHigh
diff --git a/cas/aidl/default/fuzzer.cpp b/cas/aidl/default/fuzzer.cpp
new file mode 100755
index 0000000..db1369e
--- /dev/null
+++ b/cas/aidl/default/fuzzer.cpp
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2022 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 <MediaCasService.h>
+#include <fuzzbinder/libbinder_ndk_driver.h>
+#include <fuzzer/FuzzedDataProvider.h>
+
+using aidl::android::hardware::cas::MediaCasService;
+using android::fuzzService;
+using ndk::SharedRefBase;
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+ auto mediaCasServiceAidl = SharedRefBase::make<MediaCasService>();
+
+ fuzzService(mediaCasServiceAidl->asBinder().get(), FuzzedDataProvider(data, size));
+
+ return 0;
+}
\ No newline at end of file
diff --git a/cas/aidl/default/service.cpp b/cas/aidl/default/service.cpp
new file mode 100755
index 0000000..bed2f01
--- /dev/null
+++ b/cas/aidl/default/service.cpp
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2022 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.
+ */
+
+#ifdef LAZY_SERVICE
+const bool kLazyService = true;
+#define LOG_TAG "android.hardware.cas-service.example-lazy"
+#else
+const bool kLazyService = false;
+#define LOG_TAG "android.hardware.cas-service.example"
+#endif
+
+#include <android/binder_manager.h>
+#include <android/binder_process.h>
+
+#include "MediaCasService.h"
+
+using aidl::android::hardware::cas::MediaCasService;
+
+int main() {
+ ABinderProcess_setThreadPoolMaxThreadCount(8);
+
+ // Setup hwbinder service
+ std::shared_ptr<MediaCasService> service = ::ndk::SharedRefBase::make<MediaCasService>();
+
+ const std::string instance = std::string() + MediaCasService::descriptor + "/default";
+ binder_status_t status;
+
+ if (kLazyService) {
+ status = AServiceManager_registerLazyService(service->asBinder().get(), instance.c_str());
+ } else {
+ status = AServiceManager_addService(service->asBinder().get(), instance.c_str());
+ }
+ LOG_ALWAYS_FATAL_IF(status != STATUS_OK, "Error while registering cas service: %d", status);
+
+ ABinderProcess_joinThreadPool();
+ return 0;
+}