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Diffstat (limited to 'src/buffer.h')
-rw-r--r-- | src/buffer.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/buffer.h b/src/buffer.h new file mode 100644 index 0000000..f2078be --- /dev/null +++ b/src/buffer.h @@ -0,0 +1,76 @@ +/* + * 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" +#include <string> + +class TunDevice; +class UDPPacketSource; + +class Buffer +{ +public: + Buffer(bool allow_realloc = true); + Buffer(u_int32_t length, bool allow_realloc = true); + Buffer(u_int8_t* data, u_int32_t length, bool allow_realloc = true); + Buffer(std::string hex_data, bool allow_realloc = true); + virtual ~Buffer(); + Buffer(const Buffer &src); + void operator=(const Buffer &src); + bool operator==(const Buffer &cmp) const; + Buffer operator^(const Buffer &xor_by) const; + + u_int32_t getLength() const; + virtual void setLength(u_int32_t new_length); + u_int8_t* getBuf(); + u_int8_t& operator[](u_int32_t index); + u_int8_t operator[](u_int32_t index) const; + std::string getHexDump() const; + std::string getHexDumpOneLine() const; + + bool isReallocAllowed() const; + + operator u_int8_t*(); + +protected: + virtual void reinit() {}; + + u_int8_t *buf_; + u_int32_t length_; + u_int32_t real_length_; + bool allow_realloc_; + + static const u_int32_t OVER_SIZE_ = 100; +}; + +#endif |