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 // This enum represents the permissions we care about for networking. When applied to an app, it's 21 // the permission the app (UID) has been granted. When applied to a network, it's the permission an 22 // app must hold to be allowed to use the network. PERMISSION_NONE means "no special permission is 23 // held by the app" or "no special permission is required to use the network". 24 // 25 // Permissions are flags that can be OR'ed together to represent combinations of permissions. 26 // 27 // PERMISSION_NONE is used for regular networks and apps, such as those that hold the 28 // android.permission.INTERNET framework permission. 29 // 30 // PERMISSION_NETWORK is used for privileged networks and apps that can manipulate or access them, 31 // such as those that hold the android.permission.CHANGE_NETWORK_STATE framework permission. 32 // 33 // PERMISSION_SYSTEM is used for system apps, such as those that are installed on the system 34 // partition, those that hold the android.permission.CONNECTIVITY_INTERNAL framework permission and 35 // those whose UID is less than FIRST_APPLICATION_UID. 36 enum Permission { 37 PERMISSION_NONE = 0x0, 38 PERMISSION_NETWORK = 0x1, 39 PERMISSION_SYSTEM = 0x3, // Includes PERMISSION_NETWORK. 40 }; 41 42 inline const char *permissionToName(Permission permission) { 43 switch (permission) { 44 case PERMISSION_NONE: return "NONE"; 45 case PERMISSION_NETWORK: return "NETWORK"; 46 case PERMISSION_SYSTEM: return "SYSTEM"; 47 // No default statement. We want to see errors of the form: 48 // "enumeration value 'PERMISSION_SYSTEM' not handled in switch [-Werror,-Wswitch]". 49 } 50 } 51 52 inline Permission stringToPermission(const char* arg) { 53 if (!strcmp(arg, "NETWORK")) { 54 return PERMISSION_NETWORK; 55 } 56 if (!strcmp(arg, "SYSTEM")) { 57 return PERMISSION_SYSTEM; 58 } 59 return PERMISSION_NONE; 60 } 61 62 #endif // NETD_INCLUDE_PERMISSION_H 63
