4 * The secure anycast tunneling protocol (satp) defines a protocol used
5 * for communication between any combination of unicast and anycast
6 * tunnel endpoints. It has less protocol overhead than IPSec in Tunnel
7 * mode and allows tunneling of every ETHER TYPE protocol (e.g.
8 * ethernet, ip, arp ...). satp directly includes cryptography and
9 * message authentication based on the methods used by SRTP. It is
10 * intended to deliver a generic, scaleable and secure solution for
11 * tunneling and relaying of packets of any protocol.
14 * Copyright (C) 2007-2014 Markus Grüneis, Othmar Gsenger, Erwin Nindl,
15 * Christian Pointner <satp@wirdorange.org>
17 * This file is part of Anytun.
19 * Anytun is free software: you can redistribute it and/or modify
20 * it under the terms of the GNU General Public License as published by
21 * the Free Software Foundation, either version 3 of the License, or
24 * Anytun is distributed in the hope that it will be useful,
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 * GNU General Public License for more details.
29 * You should have received a copy of the GNU General Public License
30 * along with Anytun. If not, see <http://www.gnu.org/licenses/>.
32 * In addition, as a special exception, the copyright holders give
33 * permission to link the code of portions of this program with the
34 * OpenSSL library under certain conditions as described in each
35 * individual source file, and distribute linked combinations
37 * You must obey the GNU General Public License in all respects
38 * for all of the code used other than OpenSSL. If you modify
39 * file(s) with this exception, you may extend this exception to your
40 * version of the file(s), but you are not obligated to do so. If you
41 * do not wish to do so, delete this exception statement from your
42 * version. If you delete this exception statement from all source
43 * files in the program, then also delete it here.
46 #ifndef ANYTUN_buffer_h_INCLUDED
47 #define ANYTUN_buffer_h_INCLUDED
49 #include "datatypes.h"
53 class UDPPacketSource;
58 Buffer(bool allow_realloc = true);
59 Buffer(uint32_t length, bool allow_realloc = true);
60 Buffer(uint8_t* data, uint32_t length, bool allow_realloc = true);
61 Buffer(std::string hex_data, bool allow_realloc = true);
63 Buffer(const Buffer& src);
64 void operator=(const Buffer& src);
65 bool operator==(const Buffer& cmp) const;
66 Buffer operator^(const Buffer& xor_by) const;
68 uint32_t getLength() const;
69 virtual void setLength(uint32_t new_length);
71 uint8_t& operator[](uint32_t index);
72 uint8_t operator[](uint32_t index) const;
73 std::string getHexDump() const;
74 std::string getHexDumpOneLine() const;
76 bool isReallocAllowed() const;
81 virtual void reinit() {};
85 uint32_t real_length_;
88 static const uint32_t OVER_SIZE_ = 100;