Dice HAL: Add VTS Test.
This CL adds a VTS test for the DICE HAL, and a test specific for
demotion testing. Demotion testing leaves the device in a permanently
modified state untill the next reboot, which is why it needs a special
test config. The current test config restarts the device before testing,
in a followup the device also has to reboot after the test.
Bug: 198197213
Test: atest VtsAidlDiceTargetTest
atest VtsAidlDiceDemoteTargetTest
Change-Id: I4278a1352df749da50dc8e5d118fc37336026061
diff --git a/security/dice/aidl/vts/functional/Android.bp b/security/dice/aidl/vts/functional/Android.bp
new file mode 100644
index 0000000..f5bc949
--- /dev/null
+++ b/security/dice/aidl/vts/functional/Android.bp
@@ -0,0 +1,54 @@
+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"],
+}
+
+rust_test {
+ name: "VtsAidlDiceTargetTest",
+ srcs: [
+ "dice_test.rs",
+ ],
+ require_root: true,
+ auto_gen_config: true,
+ test_suites: [
+ "general-tests",
+ "vts",
+ ],
+
+ rustlibs: [
+ "android.hardware.security.dice-V1-rust",
+ "libanyhow",
+ "libbinder_rs",
+ "libdiced_open_dice_cbor",
+ "libdiced_sample_inputs",
+ "libdiced_utils",
+ "libkeystore2_vintf_rust",
+ ],
+}
+
+rust_test {
+ name: "VtsAidlDiceDemoteTargetTest",
+ srcs: [
+ "dice_demote_test.rs",
+ ],
+
+ test_config: "VtsAidlDiceDemoteTargetTest.xml",
+ test_suites: [
+ "general-tests",
+ "vts",
+ ],
+
+ rustlibs: [
+ "android.hardware.security.dice-V1-rust",
+ "libanyhow",
+ "libbinder_rs",
+ "libdiced_open_dice_cbor",
+ "libdiced_sample_inputs",
+ "libdiced_utils",
+ "libkeystore2_vintf_rust",
+ ],
+}
diff --git a/security/dice/aidl/vts/functional/VtsAidlDiceDemoteTargetTest.xml b/security/dice/aidl/vts/functional/VtsAidlDiceDemoteTargetTest.xml
new file mode 100644
index 0000000..2991580
--- /dev/null
+++ b/security/dice/aidl/vts/functional/VtsAidlDiceDemoteTargetTest.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2019 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.
+-->
+
+<configuration description="Config to run VtsAidlDiceDemoteTargetTest device tests.">
+
+ <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer">
+ </target_preparer>
+
+ <target_preparer class="com.android.tradefed.targetprep.PushFilePreparer">
+ <option name="cleanup" value="true" />
+ <option name="push" value="VtsAidlDiceDemoteTargetTest->/data/local/tmp/VtsAidlDiceDemoteTargetTest" />
+ </target_preparer>
+
+ <test class="com.android.tradefed.testtype.rust.RustBinaryTest" >
+ <option name="test-device-path" value="/data/local/tmp" />
+ <option name="module-name" value="VtsAidlDiceDemoteTargetTest" />
+ </test>
+ <target_preparer class="com.android.tradefed.targetprep.RebootTargetPreparer" />
+
+</configuration>
\ No newline at end of file
diff --git a/security/dice/aidl/vts/functional/dice_demote_test.rs b/security/dice/aidl/vts/functional/dice_demote_test.rs
new file mode 100644
index 0000000..02ff2a4
--- /dev/null
+++ b/security/dice/aidl/vts/functional/dice_demote_test.rs
@@ -0,0 +1,67 @@
+// Copyright 2021, 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.
+
+use diced_open_dice_cbor as dice;
+use diced_sample_inputs;
+use diced_utils;
+use std::convert::TryInto;
+
+mod utils;
+use utils::with_connection;
+
+// This test calls derive with an empty argument vector, then demotes the HAL using
+// a set of three input values, and then calls derive with empty argument vector again.
+// It then performs the same three derivation steps on the result of the former and compares
+// the result to the result of the latter.
+#[test]
+fn demote_test() {
+ with_connection(|device| {
+ let input_values = diced_sample_inputs::get_input_values_vector();
+ let former = device.derive(&[]).expect("Trying to call derive.");
+ device
+ .demote(&input_values)
+ .expect("Trying to call demote with input values.");
+
+ let latter = device
+ .derive(&[])
+ .expect("Trying to call derive after demote.");
+
+ let artifacts = diced_utils::ResidentArtifacts::new(
+ former.cdiAttest[..].try_into().unwrap(),
+ former.cdiSeal[..].try_into().unwrap(),
+ &former.bcc.data,
+ )
+ .unwrap();
+
+ let input_values: Vec<diced_utils::InputValues> = input_values
+ .iter()
+ .map(|v| v.into())
+ .collect();
+
+ let artifacts = artifacts
+ .execute_steps(input_values.iter().map(|v| v as &dyn dice::InputValues))
+ .unwrap();
+ let (cdi_attest, cdi_seal, bcc) = artifacts.into_tuple();
+ let from_former = diced_utils::make_bcc_handover(
+ cdi_attest[..].try_into().unwrap(),
+ cdi_seal[..].try_into().unwrap(),
+ &bcc,
+ )
+ .unwrap();
+ // TODO b/204938506 when we have a parser/verifier, check equivalence rather
+ // than bit by bit equality.
+ assert_eq!(latter, from_former);
+ Ok(())
+ })
+}
diff --git a/security/dice/aidl/vts/functional/dice_test.rs b/security/dice/aidl/vts/functional/dice_test.rs
new file mode 100644
index 0000000..574b634
--- /dev/null
+++ b/security/dice/aidl/vts/functional/dice_test.rs
@@ -0,0 +1,82 @@
+// Copyright 2021, 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.
+
+use diced_open_dice_cbor as dice;
+use diced_sample_inputs;
+use diced_utils;
+use std::convert::{TryInto, Into};
+
+mod utils;
+use utils::with_connection;
+
+static TEST_MESSAGE: &[u8] = &[
+ // "My test message!"
+ 0x4d, 0x79, 0x20, 0x74, 0x65, 0x73, 0x74, 0x20, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x21,
+ 0x0a,
+];
+
+// This test calls derive with an empty argument vector and with a set of three input values.
+// It then performs the same three derivation steps on the result of the former and compares
+// the result to the result of the latter.
+#[test]
+fn equivalence_test() {
+ with_connection(|device| {
+ let input_values = diced_sample_inputs::get_input_values_vector();
+ let former = device.derive(&[]).expect("Trying to call derive.");
+ let latter = device
+ .derive(&input_values)
+ .expect("Trying to call derive with input values.");
+ let artifacts = diced_utils::ResidentArtifacts::new(
+ former.cdiAttest[..].try_into().unwrap(),
+ former.cdiSeal[..].try_into().unwrap(),
+ &former.bcc.data,
+ )
+ .unwrap();
+
+ let input_values: Vec<diced_utils::InputValues> = input_values
+ .iter()
+ .map(|v| v.into())
+ .collect();
+
+ let artifacts = artifacts
+ .execute_steps(input_values.iter().map(|v| v as &dyn dice::InputValues))
+ .unwrap();
+ let (cdi_attest, cdi_seal, bcc) = artifacts.into_tuple();
+ let from_former = diced_utils::make_bcc_handover(
+ cdi_attest[..].try_into().unwrap(),
+ cdi_seal[..].try_into().unwrap(),
+ &bcc,
+ )
+ .unwrap();
+ // TODO b/204938506 when we have a parser/verifier, check equivalence rather
+ // than bit by bit equality.
+ assert_eq!(latter, from_former);
+ Ok(())
+ })
+}
+
+#[test]
+fn sign_and_verify() {
+ with_connection(|device| {
+ let _signature = device
+ .sign(&[], TEST_MESSAGE)
+ .expect("Trying to call sign.");
+
+ let _bcc = device
+ .getAttestationChain(&[])
+ .expect("Trying to call getAttestationChain.");
+ // TODO b/204938506 check the signature with the bcc when the verifier is available.
+ Ok(())
+ })
+}
diff --git a/security/dice/aidl/vts/functional/utils.rs b/security/dice/aidl/vts/functional/utils.rs
new file mode 100644
index 0000000..4e6708e
--- /dev/null
+++ b/security/dice/aidl/vts/functional/utils.rs
@@ -0,0 +1,53 @@
+// Copyright 2021, 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.
+
+use android_hardware_security_dice::aidl::android::hardware::security::dice::IDiceDevice::IDiceDevice;
+use anyhow::Result;
+use binder::Strong;
+use keystore2_vintf::get_aidl_instances;
+use std::sync::Arc;
+
+static DICE_DEVICE_SERVICE_NAME: &str = &"android.hardware.security.dice";
+static DICE_DEVICE_INTERFACE_NAME: &str = &"IDiceDevice";
+
+/// This function iterates through all announced IDiceDevice services and runs the given test
+/// closure against connections to each of them. It also modifies the panic hook to indicate
+/// on which instance the test failed in case the test closure panics.
+pub fn with_connection<R, F>(test: F)
+where
+ F: Fn(&Strong<dyn IDiceDevice>) -> Result<R>,
+{
+ let instances = get_aidl_instances(DICE_DEVICE_SERVICE_NAME, 1, DICE_DEVICE_INTERFACE_NAME);
+ let panic_hook = Arc::new(std::panic::take_hook());
+ for i in instances.into_iter() {
+ let panic_hook_clone = panic_hook.clone();
+ let instance_clone = i.clone();
+ std::panic::set_hook(Box::new(move |v| {
+ println!("While testing instance: \"{}\"", instance_clone);
+ panic_hook_clone(v)
+ }));
+ let connection: Strong<dyn IDiceDevice> = binder::get_interface(&format!(
+ "{}.{}/{}",
+ DICE_DEVICE_SERVICE_NAME, DICE_DEVICE_INTERFACE_NAME, i
+ ))
+ .unwrap();
+ test(&connection).unwrap();
+ drop(std::panic::take_hook());
+ }
+ // Cannot call unwrap here because the panic hook is not Debug.
+ std::panic::set_hook(match Arc::try_unwrap(panic_hook) {
+ Ok(hook) => hook,
+ _ => panic!("Failed to unwrap and reset previous panic hook."),
+ })
+}