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 <string> 20 #include <sys/types.h> 21 22 namespace android { 23 24 // singleton 25 class Access { 26 public: 27 Access(); 28 virtual ~Access(); 29 30 Access(const Access&) = delete; 31 Access& operator=(const Access&) = delete; 32 Access(Access&&) = delete; 33 Access& operator=(Access&&) = delete; 34 35 struct CallingContext { 36 pid_t debugPid; 37 uid_t uid; 38 std::string sid; 39 }; 40 41 virtual CallingContext getCallingContext(); 42 43 virtual bool canFind(const CallingContext& ctx, const std::string& name); 44 virtual bool canAdd(const CallingContext& ctx, const std::string& name); 45 virtual bool canList(const CallingContext& ctx); 46 47 private: 48 bool actionAllowed(const CallingContext& sctx, const char* tctx, const char* perm, 49 const std::string& tname); 50 bool actionAllowedFromLookup(const CallingContext& sctx, const std::string& name, 51 const char *perm); 52 53 char* mThisProcessContext = nullptr; 54 }; 55 56 }; 57