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 methodes 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) 2007-2009 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/>.
33 #ifndef ANYTUN_buffer_h_INCLUDED
34 #define ANYTUN_buffer_h_INCLUDED
36 #include "datatypes.h"
40 class UDPPacketSource;
45 Buffer(bool allow_realloc = true);
46 Buffer(u_int32_t length, bool allow_realloc = true);
47 Buffer(u_int8_t* data, u_int32_t length, bool allow_realloc = true);
48 Buffer(std::string hex_data, bool allow_realloc = true);
50 Buffer(const Buffer &src);
51 void operator=(const Buffer &src);
52 bool operator==(const Buffer &cmp) const;
53 Buffer operator^(const Buffer &xor_by) const;
55 u_int32_t getLength() const;
56 virtual void setLength(u_int32_t new_length);
58 u_int8_t& operator[](u_int32_t index);
59 u_int8_t operator[](u_int32_t index) const;
60 std::string getHexDump() const;
61 std::string getHexDumpOneLine() const;
63 bool isReallocAllowed() const;
68 virtual void reinit() {};
72 u_int32_t real_length_;
75 static const u_int32_t OVER_SIZE_ = 100;