Policy for AndroidThings
Adds a separate Policy implementation for AndroidThings, which is not
dependent on the ChromeOSPolicy implementation. It uses some new policy
implementation fragments (policy features) which were in ChromeOSPolicy.
ChromeOSPolicy will be separately refactored to use the policy
implementation fragments.
The AndroidThingsPolicy and ChromeOSPolicy classes (and dependencies)
are compiled in as needed, based on the platform. Both classes and
dependencies are compiled into the unit test binary to ensure the proper
behavior of both.
Some unit tests are slightly duplicated across the Policy and policy
implementation fragments to confirm that the policy fragments are
consulted in the proper order/precedence.
Bug: 66016687
Test: Unit tests, manual OTA
Change-Id: I220e5720e0077309931eda70155523b3c0507567
(cherry picked from commit cd0d7bda708a44c2d839d0497e1791b42ed06e3d)
diff --git a/update_manager/android_things_policy.h b/update_manager/android_things_policy.h
new file mode 100644
index 0000000..6f8f4ad
--- /dev/null
+++ b/update_manager/android_things_policy.h
@@ -0,0 +1,91 @@
+//
+// Copyright (C) 2017 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.
+//
+
+#ifndef UPDATE_ENGINE_UPDATE_MANAGER_ANDROID_THINGS_POLICY_H_
+#define UPDATE_ENGINE_UPDATE_MANAGER_ANDROID_THINGS_POLICY_H_
+
+#include <string>
+
+#include "update_engine/update_manager/next_update_check_policy_impl.h"
+#include "update_engine/update_manager/policy_utils.h"
+
+namespace chromeos_update_manager {
+
+// AndroidThingsPolicy implements the policy-related logic used in
+// AndroidThings.
+class AndroidThingsPolicy : public Policy {
+ public:
+ AndroidThingsPolicy() = default;
+ ~AndroidThingsPolicy() override = default;
+
+ // Policy overrides.
+ EvalStatus UpdateCheckAllowed(EvaluationContext* ec,
+ State* state,
+ std::string* error,
+ UpdateCheckParams* result) const override;
+
+ // Always returns |EvalStatus::kSucceeded|
+ EvalStatus UpdateCanBeApplied(
+ EvaluationContext* ec,
+ State* state,
+ std::string* error,
+ chromeos_update_engine::ErrorCode* result,
+ chromeos_update_engine::InstallPlan* install_plan) const override;
+
+ // Always returns |EvalStatus::kSucceeded|
+ EvalStatus UpdateCanStart(EvaluationContext* ec,
+ State* state,
+ std::string* error,
+ UpdateDownloadParams* result,
+ UpdateState update_state) const override;
+
+ // Always returns |EvalStatus::kSucceeded|
+ EvalStatus UpdateDownloadAllowed(EvaluationContext* ec,
+ State* state,
+ std::string* error,
+ bool* result) const override;
+
+ // P2P is always disabled. Returns |result|==|false| and
+ // |EvalStatus::kSucceeded|
+ virtual EvalStatus P2PEnabled(EvaluationContext* ec,
+ State* state,
+ std::string* error,
+ bool* result) const override;
+
+ // This will return immediately with |EvalStatus::kSucceeded| and set
+ // |result|==|false|
+ virtual EvalStatus P2PEnabledChanged(EvaluationContext* ec,
+ State* state,
+ std::string* error,
+ bool* result,
+ bool prev_result) const override;
+
+ protected:
+ // Policy override.
+ std::string PolicyName() const override { return "AndroidThingsPolicy"; }
+
+ private:
+ friend class UmAndroidThingsPolicyTest;
+ FRIEND_TEST(UmAndroidThingsPolicyTest, UpdateCheckAllowedWaitsForTheTimeout);
+
+ static const NextUpdateCheckPolicyConstants kNextUpdateCheckPolicyConstants;
+
+ DISALLOW_COPY_AND_ASSIGN(AndroidThingsPolicy);
+};
+
+} // namespace chromeos_update_manager
+
+#endif // UPDATE_ENGINE_UPDATE_MANAGER_ANDROID_THINGS_POLICY_H_