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4742 mejdrech 1
/*
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 * Copyright (c) 2009 Lukas Mejdrech
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup tcp
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 *  @{
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 */
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/** @file
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 *  TCP options definitions.
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 */
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#ifndef __NET_TCP_CODES_H__
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#define __NET_TCP_CODES_H__
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/** End of list TCP option.
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 */
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#define TCPOPT_END_OF_LIST              0x0
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/** No operation TCP option.
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 */
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#define TCPOPT_NO_OPERATION             0x1
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/** Maximum segment size TCP option.
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 */
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#define TCPOPT_MAX_SEGMENT_SIZE         0x2
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/** Maximum segment size TCP option length.
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 */
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#define TCPOPT_MAX_SEGMENT_SIZE_LENGTH  4
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/** Window scale TCP option.
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 */
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#define TCPOPT_WINDOW_SCALE             0x3
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/** Window scale TCP option length.
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 */
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#define TCPOPT_WINDOW_SCALE_LENGTH      3
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/** Selective acknowledgement permitted TCP option.
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 */
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#define TCPOPT_SACK_PERMITTED           0x4
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/** Selective acknowledgement permitted TCP option length.
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 */
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#define TCPOPT_SACK_PERMITTED_LENGTH    2
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/** Selective acknowledgement TCP option.
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 *  Has variable length.
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 */
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#define TCPOPT_SACK                     0x5
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/** Timestamp TCP option.
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 */
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#define TCPOPT_TIMESTAMP                0x8
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/** Timestamp TCP option length.
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 */
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#define TCPOPT_TIMESTAMP_LENGTH         10
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#endif
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/** @}
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 */