| /* |
| * Copyright (C) 2016 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 CAR_VEHICLE_PROPERTY_ACCESS_CONTROL_H_ |
| #define CAR_VEHICLE_PROPERTY_ACCESS_CONTROL_H_ |
| |
| #include <utils/String8.h> |
| #include <libxml/parser.h> |
| #include <libxml/tree.h> |
| #include <map> |
| #include <string> |
| #include <private/android_filesystem_config.h> |
| #include <vehicle-internal.h> |
| |
| namespace android { |
| // This class is used to gate access to properties that are defined in an XML |
| // file. The property are read from /system/etc/vns/vns_policy.xml and this xml |
| // file must exist. If not, an error is generated. If the optional |
| // vendor_vns_policy.xml file is found in the same directory, properties from |
| // that file are also loaded to extend or override the properties from the |
| // vns_policy.xml file. |
| class VehiclePropertyAccessControl { |
| public: |
| VehiclePropertyAccessControl(); |
| ~VehiclePropertyAccessControl(); |
| bool init(); |
| bool testAccess(int32_t property, int32_t uid, bool isWrite); |
| void dump(String8& msg); |
| // protected for testing |
| protected: |
| bool isHexNotation(std::string const& s); |
| bool accessToInt(int32_t* const value,const xmlChar* property, |
| const xmlChar* uid, const xmlChar* access); |
| bool updateOrCreate(int32_t uid, int32_t property, int32_t access); |
| bool populate(xmlNode* a_node); |
| bool process(const char* policy); |
| // protected for testing |
| protected: |
| // mVehicleAccessControlMap uses "property" as a key to map to map<int,int>* |
| // |
| // map<int,int> uses "uid" as a key to map to an integer that represents |
| // "access" |
| // |
| // So "property" is used to find "uid" and "uid" is used to find "access". |
| std::map<int32_t, std::map<int32_t, int32_t>*> mVehicleAccessControlMap; |
| }; |
| |
| }; |
| |
| #endif /* CAR_VEHICLE_NETWORK_PROPERTY_CONFIG_H_ */ |