xref: /aosp_15_r20/system/netd/include/Fwmark.h (revision 8542734a0dd1db395a4d42aae09c37f3c3c3e7a1)
1*8542734aSAndroid Build Coastguard Worker /*
2*8542734aSAndroid Build Coastguard Worker  * Copyright (C) 2014 The Android Open Source Project
3*8542734aSAndroid Build Coastguard Worker  *
4*8542734aSAndroid Build Coastguard Worker  * Licensed under the Apache License, Version 2.0 (the "License");
5*8542734aSAndroid Build Coastguard Worker  * you may not use this file except in compliance with the License.
6*8542734aSAndroid Build Coastguard Worker  * You may obtain a copy of the License at
7*8542734aSAndroid Build Coastguard Worker  *
8*8542734aSAndroid Build Coastguard Worker  *      http://www.apache.org/licenses/LICENSE-2.0
9*8542734aSAndroid Build Coastguard Worker  *
10*8542734aSAndroid Build Coastguard Worker  * Unless required by applicable law or agreed to in writing, software
11*8542734aSAndroid Build Coastguard Worker  * distributed under the License is distributed on an "AS IS" BASIS,
12*8542734aSAndroid Build Coastguard Worker  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13*8542734aSAndroid Build Coastguard Worker  * See the License for the specific language governing permissions and
14*8542734aSAndroid Build Coastguard Worker  * limitations under the License.
15*8542734aSAndroid Build Coastguard Worker  */
16*8542734aSAndroid Build Coastguard Worker 
17*8542734aSAndroid Build Coastguard Worker #ifndef NETD_INCLUDE_FWMARK_H
18*8542734aSAndroid Build Coastguard Worker #define NETD_INCLUDE_FWMARK_H
19*8542734aSAndroid Build Coastguard Worker 
20*8542734aSAndroid Build Coastguard Worker #include "Permission.h"
21*8542734aSAndroid Build Coastguard Worker 
22*8542734aSAndroid Build Coastguard Worker #include <stdint.h>
23*8542734aSAndroid Build Coastguard Worker 
24*8542734aSAndroid Build Coastguard Worker union Fwmark {
25*8542734aSAndroid Build Coastguard Worker     uint32_t intValue;
26*8542734aSAndroid Build Coastguard Worker     struct {
27*8542734aSAndroid Build Coastguard Worker         unsigned netId          : 16;
28*8542734aSAndroid Build Coastguard Worker         bool explicitlySelected :  1;
29*8542734aSAndroid Build Coastguard Worker         bool protectedFromVpn   :  1;
30*8542734aSAndroid Build Coastguard Worker         Permission permission   :  2;
31*8542734aSAndroid Build Coastguard Worker         bool uidBillingDone     :  1;
32*8542734aSAndroid Build Coastguard Worker         unsigned reserved       :  8;
33*8542734aSAndroid Build Coastguard Worker         unsigned vendor         :  2;  // reserved for vendor
34*8542734aSAndroid Build Coastguard Worker         bool ingress_cpu_wakeup :  1;  // reserved for config_networkWakeupPacketMark/Mask
35*8542734aSAndroid Build Coastguard Worker     };
Fwmark()36*8542734aSAndroid Build Coastguard Worker     constexpr Fwmark() : intValue(0) {}
37*8542734aSAndroid Build Coastguard Worker 
getUidBillingMask()38*8542734aSAndroid Build Coastguard Worker     static inline uint32_t getUidBillingMask() {
39*8542734aSAndroid Build Coastguard Worker         Fwmark m;
40*8542734aSAndroid Build Coastguard Worker         m.uidBillingDone = true;
41*8542734aSAndroid Build Coastguard Worker         return m.intValue;
42*8542734aSAndroid Build Coastguard Worker     }
43*8542734aSAndroid Build Coastguard Worker 
getIngressCpuWakeupMask()44*8542734aSAndroid Build Coastguard Worker     static inline uint32_t getIngressCpuWakeupMask() {
45*8542734aSAndroid Build Coastguard Worker         Fwmark m;
46*8542734aSAndroid Build Coastguard Worker         m.ingress_cpu_wakeup = true;
47*8542734aSAndroid Build Coastguard Worker         return m.intValue;
48*8542734aSAndroid Build Coastguard Worker     }
49*8542734aSAndroid Build Coastguard Worker };
50*8542734aSAndroid Build Coastguard Worker 
51*8542734aSAndroid Build Coastguard Worker static const unsigned FWMARK_NET_ID_MASK = 0xffff;
52*8542734aSAndroid Build Coastguard Worker 
53*8542734aSAndroid Build Coastguard Worker static_assert(sizeof(Fwmark) == sizeof(uint32_t), "The entire fwmark must fit into 32 bits");
54*8542734aSAndroid Build Coastguard Worker 
55*8542734aSAndroid Build Coastguard Worker #endif  // NETD_INCLUDE_FWMARK_H
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