blob: a9601feff20ba39baab8c181b6bf8a053ee65283 (
plain) (
blame)
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
|
/*
* 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 anytun.org <satp@wirdorange.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* 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 (see the file COPYING included with this
* distribution); if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _BUFFER_H_
#define _BUFFER_H_
#include "datatypes.h"
class TunDevice;
class UDPPacketSource;
namespace boost {
namespace serialization {
class access;
}
}
class Buffer
{
public:
Buffer();
Buffer(u_int32_t length);
Buffer(u_int8_t* data, u_int32_t length);
virtual ~Buffer();
Buffer(const Buffer &src);
void operator=(const Buffer &src);
bool operator==(const Buffer &cmp) const;
// math operations to calculate IVs and keys
virtual Buffer operator^(const Buffer &xor_by) const;
virtual Buffer leftByteShift(u_int32_t width) const;
virtual Buffer rightByteShift(u_int32_t width) const;
u_int32_t resizeFront(u_int32_t new_length);
u_int32_t resizeBack(u_int32_t new_length);
u_int32_t getLength() const;
u_int8_t* getBuf();
u_int8_t& operator[](u_int32_t index);
u_int8_t operator[](u_int32_t index) const;
void printHexDump() const;
operator u_int8_t*(); // just for write/read tun and packetSource
protected:
friend class TunDevice;
friend class UDPPacketSource;
friend class AesIcmCypher;
friend class KeyDerivation; //
u_int8_t *buf_;
u_int32_t length_;
private:
friend class boost::serialization::access;
template<class Archive>
void serialize(Archive & ar, const unsigned int version);
};
#endif
|
