1 /* 2 * Copyright (C) 2014 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 NETD_INCLUDE_PERMISSION_H 18 #define NETD_INCLUDE_PERMISSION_H 19 20 #include <string.h> 21 22 // This enum represents the permissions we care about for networking. When applied to an app, it's 23 // the permission the app (UID) has been granted. When applied to a network, it's the permission an 24 // app must hold to be allowed to use the network. PERMISSION_NONE means "no special permission is 25 // held by the app" or "no special permission is required to use the network". 26 // 27 // Permissions are flags that can be OR'ed together to represent combinations of permissions. 28 // 29 // PERMISSION_NONE is used for regular networks and apps, such as those that hold the 30 // android.permission.INTERNET framework permission. 31 // 32 // PERMISSION_NETWORK is used for privileged networks and apps that can manipulate or access them, 33 // such as those that hold the android.permission.CHANGE_NETWORK_STATE framework permission. 34 // 35 // PERMISSION_SYSTEM is used for system apps, such as those that are installed on the system 36 // partition, those that hold the android.permission.CONNECTIVITY_INTERNAL framework permission and 37 // those whose UID is less than FIRST_APPLICATION_UID. 38 enum Permission { 39 PERMISSION_NONE = 0x0, 40 PERMISSION_NETWORK = 0x1, 41 PERMISSION_SYSTEM = 0x3, // Includes PERMISSION_NETWORK. 42 }; 43 44 inline const char *permissionToName(Permission permission) { 45 switch (permission) { 46 case PERMISSION_NONE: return "NONE"; 47 case PERMISSION_NETWORK: return "NETWORK"; 48 case PERMISSION_SYSTEM: return "SYSTEM"; 49 // No default statement. We want to see errors of the form: 50 // "enumeration value 'PERMISSION_SYSTEM' not handled in switch [-Werror,-Wswitch]". 51 } 52 } 53 54 #endif // NETD_INCLUDE_PERMISSION_H 55