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/*
* Copyright (C) 2010 Martin Willi
* Copyright (C) 2010 revosec AG
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* 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.
*/
/**
* @defgroup tls_writer tls_writer
* @{ @ingroup libtls
*/
#ifndef TLS_WRITER_H_
#define TLS_WRITER_H_
typedef struct tls_writer_t tls_writer_t;
#include <library.h>
/**
* TLS record generator.
*/
struct tls_writer_t {
/**
* Append a 8-bit integer to the buffer.
*
* @param value value to append
*/
void (*write_uint8)(tls_writer_t *this, u_int8_t value);
/**
* Append a 16-bit integer to the buffer.
*
* @param value value to append
*/
void (*write_uint16)(tls_writer_t *this, u_int16_t value);
/**
* Append a 24-bit integer to the buffer.
*
* @param value value to append
*/
void (*write_uint24)(tls_writer_t *this, u_int32_t value);
/**
* Append a 32-bit integer to the buffer.
*
* @param value value to append
*/
void (*write_uint32)(tls_writer_t *this, u_int32_t value);
/**
* Append a chunk of data without a length header.
*
* @param value value to append
*/
void (*write_data)(tls_writer_t *this, chunk_t value);
/**
* Append a chunk of data with a 8-bit length header.
*
* @param value value to append
*/
void (*write_data8)(tls_writer_t *this, chunk_t value);
/**
* Append a chunk of data with a 16-bit length header.
*
* @param value value to append
*/
void (*write_data16)(tls_writer_t *this, chunk_t value);
/**
* Append a chunk of data with a 24-bit length header.
*
* @param value value to append
*/
void (*write_data24)(tls_writer_t *this, chunk_t value);
/**
* Append a chunk of data with a 32-bit length header.
*
* @param value value to append
*/
void (*write_data32)(tls_writer_t *this, chunk_t value);
/**
* Prepend a 8-bit length header to existing data.
*/
void (*wrap8)(tls_writer_t *this);
/**
* Prepend a 16-bit length header to existing data.
*/
void (*wrap16)(tls_writer_t *this);
/**
* Prepend a 24-bit length header to existing data.
*/
void (*wrap24)(tls_writer_t *this);
/**
* Prepend a 32-bit length header to existing data.
*/
void (*wrap32)(tls_writer_t *this);
/**
* Get the encoded data buffer.
*
* @return chunk to internal buffer
*/
chunk_t (*get_buf)(tls_writer_t *this);
/**
* Destroy a tls_writer_t.
*/
void (*destroy)(tls_writer_t *this);
};
/**
* Create a tls_writer instance.
*
* @param bufsize initially allocated buffer size
*/
tls_writer_t *tls_writer_create(u_int32_t bufsize);
#endif /** TLS_WRITER_H_ @}*/
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