blob: 63bc5891fbfa783b36d1761b2de2e354de05c1bb (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
/*
* Copyright (C) 2014 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.
*/
#pragma once
#include <set>
#include "Network.h"
namespace android::net {
// A VirtualNetwork may be "secure" or not.
//
// A secure VPN is the usual type of VPN that grabs the default route (and thus all user traffic).
// Only a few privileged UIDs may skip the VPN and go directly to the underlying physical network.
//
// A non-secure VPN ("bypassable" VPN) also grabs all user traffic by default. But all apps are
// permitted to skip it and pick any other network for their connections. A bypassable VPN may
// optionally exclude local routes, which means it will not grab traffic that is destined to IP
// addresses considered to be on the local link.
class VirtualNetwork : public Network {
public:
explicit VirtualNetwork(unsigned netId, bool secure, bool excludeLocalRoutes = false);
virtual ~VirtualNetwork();
[[nodiscard]] int addUsers(const UidRanges& uidRanges, int32_t subPriority) override;
[[nodiscard]] int removeUsers(const UidRanges& uidRanges, int32_t subPriority) override;
bool isVirtual() override { return true; }
bool canAddUsers() override { return true; }
private:
std::string getTypeString() const override { return "VIRTUAL"; };
[[nodiscard]] int addInterface(const std::string& interface) override;
[[nodiscard]] int removeInterface(const std::string& interface) override;
bool isValidSubPriority(int32_t priority) override;
// Whether the local traffic will be excluded from the VPN network.
[[maybe_unused]] const bool mExcludeLocalRoutes;
};
} // namespace android::net
|
