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
|
/*
* ZeroTier One - Global Peer to Peer Ethernet
* Copyright (C) 2011-2015 ZeroTier Networks
*
* 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/>.
*
* --
*
* ZeroTier may be used and distributed under the terms of the GPLv3, which
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
*
* If you would like to embed ZeroTier into a commercial application or
* redistribute it in a modified binary form, please contact ZeroTier Networks
* LLC. Start here: http://www.zerotier.com/
*/
#include "TestEthernetTap.hpp"
#include "TestEthernetTapFactory.hpp"
#include "../node/Constants.hpp"
#include "../node/Utils.hpp"
#include <stdio.h>
#include <stdlib.h>
#ifdef __WINDOWS__
#include <process.h>
#else
#include <unistd.h>
#endif
namespace ZeroTier {
TestEthernetTap::TestEthernetTap(
const MAC &mac,
unsigned int mtu,
unsigned int metric,
uint64_t nwid,
const char *desiredDevice,
const char *friendlyName,
void (*handler)(void *,const MAC &,const MAC &,unsigned int,const Buffer<4096> &),
void *arg) :
EthernetTap("TestEthernetTap",mac,mtu,metric),
_nwid(nwid),
_handler(handler),
_arg(arg),
_enabled(true)
{
static volatile unsigned int testTapCounter = 0;
char tmp[64];
int pid = 0;
#ifdef __UNIX_LIKE__
pid = (int)getpid();
#endif
#ifdef __WINDOWS__
pid = (int)_getpid();
#endif
Utils::snprintf(tmp,sizeof(tmp),"test%dtap%d",pid,testTapCounter++);
_dev = tmp;
_thread = Thread::start(this);
}
TestEthernetTap::~TestEthernetTap()
{
static const TestFrame zf; // use a static empty frame because of weirdo G++ warning bug...
_pq.push(zf); // empty frame terminates thread
Thread::join(_thread);
}
void TestEthernetTap::setEnabled(bool en)
{
_enabled = en;
}
bool TestEthernetTap::enabled() const
{
return _enabled;
}
bool TestEthernetTap::addIP(const InetAddress &ip)
{
return true;
}
bool TestEthernetTap::removeIP(const InetAddress &ip)
{
return true;
}
std::set<InetAddress> TestEthernetTap::ips() const
{
return std::set<InetAddress>();
}
void TestEthernetTap::put(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len)
{
_gq.push(TestFrame(from,to,data,etherType,len));
}
std::string TestEthernetTap::deviceName() const
{
return _dev;
}
void TestEthernetTap::setFriendlyName(const char *friendlyName)
{
}
bool TestEthernetTap::updateMulticastGroups(std::set<MulticastGroup> &groups)
{
return false;
}
bool TestEthernetTap::injectPacketFromHost(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len)
{
if ((len == 0)||(len > _mtu))
return false;
_pq.push(TestFrame(from,to,data,etherType & 0xffff,len));
return true;
}
void TestEthernetTap::threadMain()
throw()
{
TestFrame f;
for(;;) {
if (_pq.pop(f,0)) {
if (f.len) {
try {
_handler(_arg,f.from,f.to,f.etherType,Buffer<4096>(f.data,f.len));
} catch ( ... ) {}
} else break;
}
}
}
} // namespace ZeroTier
|
