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
|
/*
* anytun
*
* The secure anycast tunneling protocol (satp) defines a protocol used
* for communication between any combination of unicast and anycast
* tunnel endpoints. It has less protocol overhead than IPSec in Tunnel
* mode and allows tunneling of every ETHER TYPE protocol (e.g.
* ethernet, ip, arp ...). satp directly includes cryptography and
* message authentication based on the methodes used by SRTP. It is
* intended to deliver a generic, scaleable and secure solution for
* tunneling and relaying of packets of any protocol.
*
*
* Copyright (C) 2007-2008 Othmar Gsenger, Erwin Nindl,
* Christian Pointner <satp@wirdorange.org>
*
* This file is part of Anytun.
*
* Anytun is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* Anytun 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 anytun. If not, see <http://www.gnu.org/licenses/>.
*/
#include <asio.hpp>
#include <sstream>
#include "datatypes.h"
#include "packetSource.h"
#include "buffer.h"
UDPPacketSource::UDPPacketSource(u_int16_t port) : sock_(io_service_)
{
std::stringstream ps;
ps << port;
asio::ip::udp::resolver resolver(io_service_);
asio::ip::udp::resolver::query query(ps.str());
asio::ip::udp::endpoint e = *resolver.resolve(query);
sock_.open(e.protocol());
sock_.bind(e);
}
UDPPacketSource::UDPPacketSource(std::string localaddr, u_int16_t port) : sock_(io_service_)
{
std::stringstream ps;
ps << port;
asio::ip::udp::resolver resolver(io_service_);
asio::ip::udp::resolver::query query(localaddr, ps.str());
asio::ip::udp::endpoint e = *resolver.resolve(query);
sock_.open(e.protocol());
sock_.bind(e);
}
u_int32_t UDPPacketSource::recv(u_int8_t* buf, u_int32_t len, std::string& addr, u_int16_t &port)
{
asio::ip::udp::endpoint e;
u_int32_t rtn = sock_.receive_from(asio::buffer(buf, len), e);
addr = e.address().to_string();
port = e.port();
return rtn;
}
void UDPPacketSource::send(u_int8_t* buf, u_int32_t len, std::string addr, u_int16_t port)
{
std::stringstream ps;
ps << port;
asio::ip::udp::resolver resolver(io_service_);
asio::ip::udp::resolver::query query(addr, ps.str());
asio::ip::udp::endpoint e = *resolver.resolve(query);
sock_.send_to(asio::buffer(buf, len), e);
}
|
