security: see: hdcp: add HDCP Auth Control interface (6f9971f0) · Commits · e / os / android_hardware_interfaces

compatibility_matrices/exclude/fcm_exclude.cpp

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		@@ -169,6 +169,7 @@ bool ShouldCheckMissingAidlHalsInFcm(const std::string& packageAndVersion) {
		"android.hardware.audio.core.sounddose@3",
		// This is only used by a trusty VM
		"android.hardware.security.see.authmgr@1",
		"android.hardware.security.see.hdcp@1",

		// Deprecated HALs.
		"android.hardware.audio.sounddose@3",

drm/Android.bp

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		dirgroup {
		name: "trusty_dirgroup_hardware_interfaces_drm",
		dirs: ["."],
		visibility: ["//trusty/vendor/google/aosp/scripts"],
		}

drm/aidl/Android.bp

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		@@ -26,6 +26,9 @@ aidl_interface {
		ndk: {
		min_sdk_version: "34",
		},
		rust: {
		enabled: true,
		},
		},
		double_loadable: true,
		versions_with_info: [

security/see/hdcp/README.md

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		# IHDCPAuthControl as a Trusted HAL service

		IHDCPAuthControl is expected to be a service implemented in a TEE.
		We provide a default reference implementation and its integration in Trusty
		as an example.

		The VTS test for a Trusted HAL service ought to run in the VM.
		We provide an integration of the VTS test in a Trusty VM,
		and later in a Microdroid VM (b/380632474).

		This interface shall not be exposed to the host and thus shall be part of
		the list of excluded interfaces from
		[compatibility_matrices/exclude/fcm_exclude.cpp](../../../compatibility_matrices/exclude/fcm_exclude.cpp)

		## 1. Mock Implementation

		The mock implementation under default/src/lib.rs is expected to be integrated in a
		TEE. For AOSP testing we offer two virtual device testing options:

		- Cuttlefish AVD, where the reference implementation is integrated in an AVF VM, emulating a TEE.
		- Trusty QEMU AVD, where the reference implementation is integrated in a Trusty TEE image (executed in secure world)

		### 1.1. Cuttlefish: Integrate in an AVF HAL pVM (Trusty)

		In Cuttlefish, we emulate a TEE with an AVF Trusty pVM.
		The VM2TZ IPC is emulated with a vsock port forward utility (b/379582767).

		Until vsock port forwarding is supported, the trusty_test_vm is used temporarily.
		(VTS tests and HAL implementation will be in same pVM).

		TODO: complete when trusty_hal_vm is created

		In order to add the mock HdcpAuthControlService to the trusty_test_vm, make sure
		that `hardware/interfaces/security/see/hdcp/default` is added to the
		trusty_test_vm makefile, by adding it to
		[trusty/device/x86/generic-x86_64/project/generic-x86_64-inc.mk](../../../../../trusty/device/x86/generic-x86_64/project/generic-x86_64-inc.mk)

		### 1.2. Trusty QEMU AVD: Integrate as a TA in Trusty TEE

		In order to add the mock HdcpAuthControlService to the Trusty TEE, make sure
		that `hardware/interfaces/security/see/hdcp/default` is added to
		[trusty/device/arm/generic-arm64/project/generic-arm-inc.mk](../../../../../trusty/device/arm/generic-arm64/project/generic-arm-inc.mk)


		## 2. VTS Tests

		IHdcpAuthControl service is expected to only be exposed to AVF pVM.

		The VTS tests shall verify:

		- IHdcpAuthControl cannot be accessed from the Android Host:

		see [aidl/vts/src/host_test.rs](aidl/vts/host_test.rs)

		- IHdcpAuthControl can be accessed from an AVF pVM:

		see [aidl/vts/src/vm_test.rs](aidl/vts/src/vm_test.rs)
		see [aidl/vts/AndroidTest.xml](aidl/vts/AndroidTest.xml)


		To integrate the VTS test in the trusty_test_vm:

		1.
		1. add the test to [hardware/interfaces/security/see/usertests-rust-inc.mk](../usertests-rust-inc.mk)

security/see/hdcp/aidl/Android.bp

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		// Copyright (C) 2024 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.

		package {
		default_team: "trendy_team_trusty",
		default_applicable_licenses: ["Android-Apache-2.0"],
		}

		aidl_interface {
		name: "android.hardware.security.see.hdcp",
		vendor_available: true,
		srcs: ["android/hardware/security/see/hdcp/*.aidl"],
		imports: [
		"android.hardware.drm.common-V1",
		],
		stability: "vintf",
		frozen: false,
		backend: {
		java: {
		enabled: false,
		},
		cpp: {
		enabled: false,
		},
		ndk: {
		min_sdk_version: "34",
		},
		rust: {
		enabled: true,
		gen_mockall: true,
		additional_rustlibs: [
		"libmockall",
		],
		},
		},
		}

		// A rust_defaults that includes the latest hdcp AIDL library.
		// Modules that depend on hdcp directly can include this rust_defaults to avoid
		// managing dependency versions explicitly.
		rust_defaults {
		name: "hdcp_use_latest_hal_aidl_rust",
		rustlibs: [
		"android.hardware.security.see.hdcp-V1-rust",
		],
		}