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- /*
- * $Id: tcp.h,v 1.3 1993/06/30 05:45:25 jraja Exp $
- *
- * HISTORY
- * $Log: tcp.h,v $
- * Revision 1.3 1993/06/30 05:45:25 jraja
- * Changed bitfield definitions to be more like ANSI-C.
- *
- * Revision 1.2 1993/03/03 21:27:41 jraja
- * Added #ifdef to prevent multiple inclusion.
- *
- * Revision 1.1 92/11/17 16:30:05 16:30:05 jraja (Jarno Tapio Rajahalme)
- * Initial revision
- *
- *
- */
-
- /*
- * Copyright (c) 1982, 1986 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)tcp.h 7.7 (Berkeley) 6/28/90
- */
-
- /*
- * TCP header.
- * Per RFC 793, September, 1981.
- */
-
- #define TH_FIN $01
- #define TH_SYN $02
- #define TH_RST $04
- #define TH_PUSH $08
- #define TH_ACK $10
- #define TH_URG $20
-
- OBJECT tcphdr
- th_sport:UWORD, /* source port */
- th_dport:UWORD, /* destination port */
- th_seq:ULONG, /* sequence number */
- th_ack:ULONG, /* acknowledgement number */
- th_off:UBYTE, /* data offset */
- th_x2:UBYTE, /* (unused) */
- th_flags:UBYTE,
- th_win:UWORD, /* window */
- th_sum:UWORD, /* checksum */
- th_urp:UWORD /* urgent pointer */
-
-
- #define TCPOPT_EOL 0
- #define TCPOPT_NOP 1
- #define TCPOPT_MAXSEG 2
-
- /*
- * Default maximum segment size for TCP.
- * With an IP MSS of 576, this is 536,
- * but 512 is probably more convenient.
- * This should be defined as MIN(512, IP_MSS - sizeof (struct tcpiphdr)).
- */
- #define TCP_MSS 512
-
- #define TCP_MAXWIN 65535 /* largest value for window */
-
- /*
- * User-settable options (used with setsockopt).
- */
- #define TCP_NODELAY $01 /* don't delay send to coalesce packets */
- #define TCP_MAXSEG $02 /* set maximum segment size */
-
-
-