blob: 9bf31fe7be41a7ad631b84b0db1a0c56d2054313 [file] [log] [blame]
bellardf0cbd3e2004-04-22 00:10:48 +00001/*
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.
aliguori2f5f8992009-01-26 19:37:41 +000013 * 3. Neither the name of the University nor the names of its contributors
bellardf0cbd3e2004-04-22 00:10:48 +000014 * 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
bellardf0cbd3e2004-04-22 00:10:48 +000039/*
40 * Udp protocol header.
41 * Per RFC 768, September, 1981.
42 */
43struct udphdr {
Stefan Weilb6dce922010-07-22 22:15:23 +020044 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 */
bellardf0cbd3e2004-04-22 00:10:48 +000048};
49
50/*
51 * UDP kernel structures and variables.
52 */
53struct udpiphdr {
54 struct ipovly ui_i; /* overlaid ip structure */
55 struct udphdr ui_u; /* udp header */
56};
blueswir1429d0a32009-01-13 19:48:42 +000057#define ui_mbuf ui_i.ih_mbuf.mptr
bellardf0cbd3e2004-04-22 00:10:48 +000058#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
bellardf0cbd3e2004-04-22 00:10:48 +000068/*
69 * Names for UDP sysctl objects
70 */
71#define UDPCTL_CHECKSUM 1 /* checksum UDP packets */
72#define UDPCTL_MAXID 2
73
bellard101c5932005-06-05 17:11:42 +000074struct mbuf;
bellardf0cbd3e2004-04-22 00:10:48 +000075
Blue Swirl6cb9c6d2009-07-01 19:11:17 +000076void udp_init(Slirp *);
Jan Kiszkaa68adc22012-02-29 19:14:23 +010077void udp_cleanup(Slirp *);
Blue Swirl6cb9c6d2009-07-01 19:11:17 +000078void udp_input(register struct mbuf *, int);
79int udp_output(struct socket *, struct mbuf *, struct sockaddr_in *);
80int udp_attach(struct socket *);
81void udp_detach(struct socket *);
Stefan Weilb6dce922010-07-22 22:15:23 +020082struct socket * udp_listen(Slirp *, uint32_t, u_int, uint32_t, u_int,
Blue Swirl6cb9c6d2009-07-01 19:11:17 +000083 int);
ths5fafdf22007-09-16 21:08:06 +000084int udp_output2(struct socket *so, struct mbuf *m,
bellardf0cbd3e2004-04-22 00:10:48 +000085 struct sockaddr_in *saddr, struct sockaddr_in *daddr,
86 int iptos);
87#endif