1 /*
2  * Copyright (C) 2019 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 #pragma once
18 
19 #include <map>
20 #include <set>
21 #include <string>
22 
23 #include <hidl-util/FQName.h>
24 
25 #include "result.h"
26 
27 namespace android {
28 namespace init {
29 
30 using InterfaceInheritanceHierarchyMap = std::map<android::FQName, std::set<android::FQName>>;
31 
32 // For the given set of interfaces / interface instances, checks that each
33 // interface's hierarchy of inherited interfaces is also included in the given
34 // interface set. Uses the provided hierarchy data.
35 Result<void> CheckInterfaceInheritanceHierarchy(const std::set<std::string>& instances,
36                                                 const InterfaceInheritanceHierarchyMap& hierarchy);
37 Result<void> CheckInterfaceInheritanceHierarchy(const std::set<android::FQName>& interfaces,
38                                                 const InterfaceInheritanceHierarchyMap& hierarchy);
39 
40 // Saves the set of known interfaces using the provided HIDL interface
41 // inheritance hierarchy.
42 void SetKnownInterfaces(const InterfaceInheritanceHierarchyMap& hierarchy);
43 
44 // Checks if the provided interface is in the set of known interfaces. Returns
45 // an empty Result if present, otherwise an Error.
46 Result<void> IsKnownInterface(const std::string& instance);
47 Result<void> IsKnownInterface(const FQName& intf);
48 
49 }  // namespace init
50 }  // namespace android
51