source: rtems/c/src/libnetworking/netinet/udp_var.h @ 39e6e65a

4.104.114.84.95
Last change on this file since 39e6e65a was 39e6e65a, checked in by Joel Sherrill <joel.sherrill@…>, on 08/19/98 at 21:32:28

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1/*
2 * Copyright (c) 1982, 1986, 1989, 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. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *      This product includes software developed by the University of
16 *      California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 *      @(#)udp_var.h   8.1 (Berkeley) 6/10/93
34 * $Id$
35 */
36
37#ifndef _NETINET_UDP_VAR_H_
38#define _NETINET_UDP_VAR_H_
39
40/*
41 * UDP kernel structures and variables.
42 */
43struct  udpiphdr {
44        struct  ipovly ui_i;            /* overlaid ip structure */
45        struct  udphdr ui_u;            /* udp header */
46};
47#define ui_next         ui_i.ih_next
48#define ui_prev         ui_i.ih_prev
49#define ui_x1           ui_i.ih_x1
50#define ui_pr           ui_i.ih_pr
51#define ui_len          ui_i.ih_len
52#define ui_src          ui_i.ih_src
53#define ui_dst          ui_i.ih_dst
54#define ui_sport        ui_u.uh_sport
55#define ui_dport        ui_u.uh_dport
56#define ui_ulen         ui_u.uh_ulen
57#define ui_sum          ui_u.uh_sum
58
59struct  udpstat {
60                                /* input statistics: */
61        u_long  udps_ipackets;          /* total input packets */
62        u_long  udps_hdrops;            /* packet shorter than header */
63        u_long  udps_badsum;            /* checksum error */
64        u_long  udps_badlen;            /* data length larger than packet */
65        u_long  udps_noport;            /* no socket on port */
66        u_long  udps_noportbcast;       /* of above, arrived as broadcast */
67        u_long  udps_fullsock;          /* not delivered, input socket full */
68        u_long  udpps_pcbcachemiss;     /* input packets missing pcb cache */
69        u_long  udpps_pcbhashmiss;      /* input packets not for hashed pcb */
70                                /* output statistics: */
71        u_long  udps_opackets;          /* total output packets */
72};
73
74/*
75 * Names for UDP sysctl objects
76 */
77#define UDPCTL_CHECKSUM         1       /* checksum UDP packets */
78#define UDPCTL_STATS            2       /* statistics (read-only) */
79#define UDPCTL_MAXDGRAM         3       /* max datagram size */
80#define UDPCTL_RECVSPACE        4       /* default receive buffer space */
81#define UDPCTL_MAXID            5
82
83#define UDPCTL_NAMES { \
84        { 0, 0 }, \
85        { "checksum", CTLTYPE_INT }, \
86        { "stats", CTLTYPE_STRUCT }, \
87        { "maxdgram", CTLTYPE_INT }, \
88        { "recvspace", CTLTYPE_INT }, \
89}
90
91#ifdef KERNEL
92extern struct   inpcbhead udb;
93extern struct   inpcbinfo udbinfo;
94extern struct   udpstat udpstat;
95
96void     udp_ctlinput __P((int, struct sockaddr *, void *));
97void     udp_init __P((void));
98void     udp_input __P((struct mbuf *, int));
99int      udp_usrreq __P((struct socket *,
100            int, struct mbuf *, struct mbuf *, struct mbuf *));
101#endif
102
103#endif
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