Archipelago » qemu

/*

 * 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

 * tcpip.h,v 1.3 1994/08/21 05:27:40 paul Exp

 */

#ifndef _TCPIP_H_

#define _TCPIP_H_

/*

 * Tcp+ip header, after ip options removed.

 */

struct tcpiphdr {

        struct         ipovly ti_i;                /* overlaid ip structure */

        struct        tcphdr ti_t;                /* tcp header */

};

#define        ti_mbuf                ti_i.ih_mbuf.mptr

#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

#define tcpiphdr2qlink(T) ((struct qlink*)(((char*)(T)) - sizeof(struct qlink)))

#define qlink2tcpiphdr(Q) ((struct tcpiphdr*)(((char*)(Q)) + sizeof(struct qlink)))

#define tcpiphdr_next(T) qlink2tcpiphdr(tcpiphdr2qlink(T)->next)

#define tcpiphdr_prev(T) qlink2tcpiphdr(tcpiphdr2qlink(T)->prev)

#define tcpfrag_list_first(T) qlink2tcpiphdr((T)->seg_next)

#define tcpfrag_list_end(F, T) (tcpiphdr2qlink(F) == (struct qlink*)(T))

#define tcpfrag_list_empty(T) ((T)->seg_next == (struct tcpiphdr*)(T))

/*

 * Just a clean way to get to the first byte

 * of the packet

 */

struct tcpiphdr_2 {

        struct tcpiphdr dummy;

        char first_char;

};

#endif