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
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2016 ZeroTier, Inc. https://www.zerotier.com/
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef ZT_WINDOWSETHERNETTAP_HPP
#define ZT_WINDOWSETHERNETTAP_HPP
#include <stdio.h>
#include <stdlib.h>
#include <ifdef.h>
#include <string>
#include <queue>
#include <stdexcept>
#include "../node/Constants.hpp"
#include "../node/Mutex.hpp"
#include "../node/Array.hpp"
#include "../node/MulticastGroup.hpp"
#include "../node/InetAddress.hpp"
#include "../osdep/Thread.hpp"
namespace ZeroTier {
class WindowsEthernetTap
{
public:
/**
* Installs a new instance of the ZT tap driver
*
* @param pathToInf Path to zttap driver .inf file
* @param deviceInstanceId Buffer to fill with device instance ID on success (and if SetupDiGetDeviceInstanceIdA succeeds, which it should)
* @return Empty string on success, otherwise an error message
*/
static std::string addNewPersistentTapDevice(const char *pathToInf,std::string &deviceInstanceId);
/**
* Uninstalls all persistent tap devices that have legacy drivers
*
* @return Empty string on success, otherwise an error message
*/
static std::string destroyAllLegacyPersistentTapDevices();
/**
* Uninstalls all persistent tap devices on the system
*
* @return Empty string on success, otherwise an error message
*/
static std::string destroyAllPersistentTapDevices();
/**
* Uninstall a specific persistent tap device by instance ID
*
* @param instanceId Device instance ID
* @return Empty string on success, otherwise an error message
*/
static std::string deletePersistentTapDevice(const char *instanceId);
/**
* Disable a persistent tap device by instance ID
*
* @param instanceId Device instance ID
* @param enabled Enable device?
* @return True if device was found and disabled
*/
static bool setPersistentTapDeviceState(const char *instanceId,bool enabled);
WindowsEthernetTap(
const char *hp,
const MAC &mac,
unsigned int mtu,
unsigned int metric,
uint64_t nwid,
const char *friendlyName,
void (*handler)(void *,uint64_t,const MAC &,const MAC &,unsigned int,unsigned int,const void *,unsigned int),
void *arg);
~WindowsEthernetTap();
void setEnabled(bool en);
bool enabled() const;
bool addIp(const InetAddress &ip);
bool removeIp(const InetAddress &ip);
std::vector<InetAddress> ips() const;
void put(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len);
std::string deviceName() const;
void setFriendlyName(const char *friendlyName);
void scanMulticastGroups(std::vector<MulticastGroup> &added,std::vector<MulticastGroup> &removed);
inline const NET_LUID &luid() const { return _deviceLuid; }
inline const GUID &guid() const { return _deviceGuid; }
inline const std::string &instanceId() const { return _deviceInstanceId; }
NET_IFINDEX interfaceIndex() const;
void threadMain()
throw();
bool isInitialized() const { return _initialized; };
private:
NET_IFINDEX _getDeviceIndex(); // throws on failure
std::vector<std::string> _getRegistryIPv4Value(const char *regKey);
void _setRegistryIPv4Value(const char *regKey,const std::vector<std::string> &value);
void _syncIps();
void (*_handler)(void *,uint64_t,const MAC &,const MAC &,unsigned int,unsigned int,const void *,unsigned int);
void *_arg;
MAC _mac;
uint64_t _nwid;
Thread _thread;
volatile HANDLE _tap;
HANDLE _injectSemaphore;
GUID _deviceGuid;
NET_LUID _deviceLuid;
std::string _netCfgInstanceId;
std::string _deviceInstanceId;
std::vector<InetAddress> _assignedIps; // IPs assigned with addIp
Mutex _assignedIps_m;
std::vector<MulticastGroup> _multicastGroups;
std::queue< std::pair< Array<char,ZT_IF_MTU + 32>,unsigned int > > _injectPending;
Mutex _injectPending_m;
std::string _pathToHelpers;
volatile bool _run;
volatile bool _initialized;
volatile bool _enabled;
};
} // namespace ZeroTier
#endif
|
