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_FWMARK_H 18 #define NETD_INCLUDE_FWMARK_H 19 20 #include "Permission.h" 21 22 #include <stdint.h> 23 24 union Fwmark { 25 uint32_t intValue; 26 struct { 27 unsigned netId : 16; 28 bool explicitlySelected : 1; 29 bool protectedFromVpn : 1; 30 Permission permission : 2; 31 bool uidBillingDone : 1; 32 unsigned reserved : 10; 33 bool ingress_cpu_wakeup : 1; // reserved for config_networkWakeupPacketMark/Mask 34 }; Fwmark()35 constexpr Fwmark() : intValue(0) {} 36 getUidBillingMask()37 static inline uint32_t getUidBillingMask() { 38 Fwmark m; 39 m.uidBillingDone = true; 40 return m.intValue; 41 } 42 }; 43 44 static const unsigned FWMARK_NET_ID_MASK = 0xffff; 45 46 static_assert(sizeof(Fwmark) == sizeof(uint32_t), "The entire fwmark must fit into 32 bits"); 47 48 #endif // NETD_INCLUDE_FWMARK_H 49