|  | /* | 
|  | * Copyright (c) 1982, 1986, 1993 | 
|  | *	The 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. 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. | 
|  | * | 
|  | *	@(#)tcpip.h	8.1 (Berkeley) 6/10/93 | 
|  | * $Id$ | 
|  | */ | 
|  |  | 
|  | #ifndef _NETINET_TCPIP_H_ | 
|  | #define _NETINET_TCPIP_H_ | 
|  |  | 
|  | # if defined(linux) && !defined(LINUX_IPOVLY) | 
|  | #  define LINUX_IPOVLY | 
|  | struct ipovly { | 
|  | caddr_t	ih_next, ih_prev;	/* for protocol sequence q's */ | 
|  | u_char	ih_x1;			/* (unused) */ | 
|  | u_char	ih_pr;			/* protocol */ | 
|  | short	ih_len;			/* protocol length */ | 
|  | struct	in_addr ih_src;		/* source internet address */ | 
|  | struct	in_addr ih_dst;		/* destination internet address */ | 
|  | }; | 
|  | # endif | 
|  |  | 
|  | /* | 
|  | * Tcp+ip header, after ip options removed. | 
|  | */ | 
|  | struct tcpiphdr { | 
|  | struct 	ipovly ti_i;		/* overlaid ip structure */ | 
|  | struct	tcphdr ti_t;		/* tcp header */ | 
|  | }; | 
|  |  | 
|  | #ifdef notyet | 
|  | /* | 
|  | * Tcp+ip header, after ip options removed but including TCP options. | 
|  | */ | 
|  | struct full_tcpiphdr { | 
|  | struct 	ipovly ti_i;		/* overlaid ip structure */ | 
|  | struct	tcphdr ti_t;		/* tcp header */ | 
|  | char	ti_o[TCP_MAXOLEN];	/* space for tcp options */ | 
|  | }; | 
|  | #endif /* notyet */ | 
|  | #define	ti_next		ti_i.ih_next | 
|  | #define	ti_prev		ti_i.ih_prev | 
|  | #define	ti_x1		ti_i.ih_x1 | 
|  | #define	ti_pr		ti_i.ih_pr | 
|  | #define	ti_len		ti_i.ih_len | 
|  | #define	ti_src		ti_i.ih_src | 
|  | #define	ti_dst		ti_i.ih_dst | 
|  | #define	ti_sport	ti_t.th_sport | 
|  | #define	ti_dport	ti_t.th_dport | 
|  | #define	ti_seq		ti_t.th_seq | 
|  | #define	ti_ack		ti_t.th_ack | 
|  | #define	ti_x2		ti_t.th_x2 | 
|  | #define	ti_off		ti_t.th_off | 
|  | #define	ti_flags	ti_t.th_flags | 
|  | #define	ti_win		ti_t.th_win | 
|  | #define	ti_sum		ti_t.th_sum | 
|  | #define	ti_urp		ti_t.th_urp | 
|  |  | 
|  | #endif |