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Annotation of qemu/slirp/tcpip.h, revision 1.1.1.2

1.1       root        1: /*
                      2:  * Copyright (c) 1982, 1986, 1993
                      3:  *     The Regents of the University of California.  All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms, with or without
                      6:  * modification, are permitted provided that the following conditions
                      7:  * are met:
                      8:  * 1. Redistributions of source code must retain the above copyright
                      9:  *    notice, this list of conditions and the following disclaimer.
                     10:  * 2. Redistributions in binary form must reproduce the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer in the
                     12:  *    documentation and/or other materials provided with the distribution.
1.1.1.2 ! root       13:  * 3. Neither the name of the University nor the names of its contributors
1.1       root       14:  *    may be used to endorse or promote products derived from this software
                     15:  *    without specific prior written permission.
                     16:  *
                     17:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     18:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     19:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     20:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     21:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     22:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     23:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     24:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     25:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     26:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     27:  * SUCH DAMAGE.
                     28:  *
                     29:  *     @(#)tcpip.h     8.1 (Berkeley) 6/10/93
                     30:  * tcpip.h,v 1.3 1994/08/21 05:27:40 paul Exp
                     31:  */
                     32: 
                     33: #ifndef _TCPIP_H_
                     34: #define _TCPIP_H_
                     35: 
                     36: /*
                     37:  * Tcp+ip header, after ip options removed.
                     38:  */
                     39: struct tcpiphdr {
                     40:        struct  ipovly ti_i;            /* overlaid ip structure */
                     41:        struct  tcphdr ti_t;            /* tcp header */
                     42: };
1.1.1.2 ! root       43: #define        ti_mbuf         ti_i.ih_mbuf.mptr
1.1       root       44: #define        ti_x1           ti_i.ih_x1
                     45: #define        ti_pr           ti_i.ih_pr
                     46: #define        ti_len          ti_i.ih_len
                     47: #define        ti_src          ti_i.ih_src
                     48: #define        ti_dst          ti_i.ih_dst
                     49: #define        ti_sport        ti_t.th_sport
                     50: #define        ti_dport        ti_t.th_dport
                     51: #define        ti_seq          ti_t.th_seq
                     52: #define        ti_ack          ti_t.th_ack
                     53: #define        ti_x2           ti_t.th_x2
                     54: #define        ti_off          ti_t.th_off
                     55: #define        ti_flags        ti_t.th_flags
                     56: #define        ti_win          ti_t.th_win
                     57: #define        ti_sum          ti_t.th_sum
                     58: #define        ti_urp          ti_t.th_urp
                     59: 
1.1.1.2 ! root       60: #define tcpiphdr2qlink(T) ((struct qlink*)(((char*)(T)) - sizeof(struct qlink)))
        !            61: #define qlink2tcpiphdr(Q) ((struct tcpiphdr*)(((char*)(Q)) + sizeof(struct qlink)))
        !            62: #define tcpiphdr_next(T) qlink2tcpiphdr(tcpiphdr2qlink(T)->next)
        !            63: #define tcpiphdr_prev(T) qlink2tcpiphdr(tcpiphdr2qlink(T)->prev)
        !            64: #define tcpfrag_list_first(T) qlink2tcpiphdr((T)->seg_next)
        !            65: #define tcpfrag_list_end(F, T) (tcpiphdr2qlink(F) == (struct qlink*)(T))
        !            66: #define tcpfrag_list_empty(T) ((T)->seg_next == (struct tcpiphdr*)(T))
        !            67: 
1.1       root       68: /*
                     69:  * Just a clean way to get to the first byte
                     70:  * of the packet
                     71:  */
                     72: struct tcpiphdr_2 {
                     73:        struct tcpiphdr dummy;
                     74:        char first_char;
                     75: };
                     76: 
                     77: #endif

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