1 //
2 // Copyright (C) 2020 The Android Open Source Project
3 //
4 // Licensed under the Apache License, Version 2.0 (the "License");
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
7 //
8 //      http://www.apache.org/licenses/LICENSE-2.0
9 //
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
15 //
16 
17 #ifndef UPDATE_ENGINE_UPDATE_MANAGER_ENTERPRISE_ROLLBACK_POLICY_IMPL_H_
18 #define UPDATE_ENGINE_UPDATE_MANAGER_ENTERPRISE_ROLLBACK_POLICY_IMPL_H_
19 
20 #include <string>
21 
22 #include "update_engine/common/error_code.h"
23 #include "update_engine/payload_consumer/install_plan.h"
24 #include "update_engine/update_manager/policy_utils.h"
25 
26 namespace chromeos_update_manager {
27 
28 // If the update is an enterprise rollback, this should not block the update
29 // to be applied.
30 class EnterpriseRollbackPolicyImpl : public PolicyImplBase {
31  public:
32   EnterpriseRollbackPolicyImpl() = default;
33   ~EnterpriseRollbackPolicyImpl() override = default;
34 
35   // Policy overrides.
36   EvalStatus UpdateCanBeApplied(
37       EvaluationContext* ec,
38       State* state,
39       std::string* error,
40       chromeos_update_engine::ErrorCode* result,
41       chromeos_update_engine::InstallPlan* install_plan) const override;
42 
43  protected:
PolicyName()44   std::string PolicyName() const override {
45     return "EnterpriseRollbackPolicyImpl";
46   }
47 
48  private:
49   EnterpriseRollbackPolicyImpl(const EnterpriseRollbackPolicyImpl&) = delete;
50   EnterpriseRollbackPolicyImpl& operator=(const EnterpriseRollbackPolicyImpl&) =
51       delete;
52 };
53 
54 }  // namespace chromeos_update_manager
55 
56 #endif  // UPDATE_ENGINE_UPDATE_MANAGER_ENTERPRISE_ROLLBACK_POLICY_IMPL_H_
57