File:  [Qemu by Fabrice Bellard] / qemu / slirp / udp.h
Revision 1.1.1.6 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 19:51:33 2018 UTC (3 years, 3 months ago) by root
Branches: qemu, MAIN
CVS tags: qemu1101, HEAD
qemu 1.1.1

    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.
   13:  * 3. Neither the name of the University nor the names of its contributors
   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:  *	@(#)udp.h	8.1 (Berkeley) 6/10/93
   30:  * udp.h,v 1.3 1994/08/21 05:27:41 paul Exp
   31:  */
   32: 
   33: #ifndef _UDP_H_
   34: #define _UDP_H_
   35: 
   36: #define UDP_TTL 0x60
   37: #define UDP_UDPDATALEN 16192
   38: 
   39: /*
   40:  * Udp protocol header.
   41:  * Per RFC 768, September, 1981.
   42:  */
   43: struct udphdr {
   44:     uint16_t uh_sport;          /* source port */
   45:     uint16_t uh_dport;          /* destination port */
   46:     int16_t  uh_ulen;           /* udp length */
   47:     uint16_t uh_sum;            /* udp checksum */
   48: };
   49: 
   50: /*
   51:  * UDP kernel structures and variables.
   52:  */
   53: struct udpiphdr {
   54: 	        struct  ipovly ui_i;            /* overlaid ip structure */
   55: 	        struct  udphdr ui_u;            /* udp header */
   56: };
   57: #define ui_mbuf         ui_i.ih_mbuf.mptr
   58: #define ui_x1           ui_i.ih_x1
   59: #define ui_pr           ui_i.ih_pr
   60: #define ui_len          ui_i.ih_len
   61: #define ui_src          ui_i.ih_src
   62: #define ui_dst          ui_i.ih_dst
   63: #define ui_sport        ui_u.uh_sport
   64: #define ui_dport        ui_u.uh_dport
   65: #define ui_ulen         ui_u.uh_ulen
   66: #define ui_sum          ui_u.uh_sum
   67: 
   68: /*
   69:  * Names for UDP sysctl objects
   70:  */
   71: #define UDPCTL_CHECKSUM         1       /* checksum UDP packets */
   72: #define UDPCTL_MAXID            2
   73: 
   74: struct mbuf;
   75: 
   76: void udp_init(Slirp *);
   77: void udp_cleanup(Slirp *);
   78: void udp_input(register struct mbuf *, int);
   79: int udp_output(struct socket *, struct mbuf *, struct sockaddr_in *);
   80: int udp_attach(struct socket *);
   81: void udp_detach(struct socket *);
   82: struct socket * udp_listen(Slirp *, uint32_t, u_int, uint32_t, u_int,
   83:                            int);
   84: int udp_output2(struct socket *so, struct mbuf *m,
   85:                 struct sockaddr_in *saddr, struct sockaddr_in *daddr,
   86:                 int iptos);
   87: #endif

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