127 lines
4.3 KiB
C
127 lines
4.3 KiB
C
/* udp_var.h - UDP kernel structure and variable header file */
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/* Copyright 1984-1996 Wind River Systems, Inc. */
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/*
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* Copyright (c) 1982, 1986, 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)udp_var.h 8.1 (Berkeley) 6/10/93
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*/
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/*
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modification history
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--------------------
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01a,03mar96,vin created from BSD4.4 stuff,integrated with 02j.
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*/
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#ifndef __INCudp_varh
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#define __INCudp_varh
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* includes */
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#include "net/mbuf.h"
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#include "netinet/in_pcb.h"
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#if ((CPU_FAMILY==I960) && (defined __GNUC__))
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#pragma align 1 /* tell gcc960 not to optimize alignments */
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#endif /* CPU_FAMILY==I960 */
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/* UDP kernel structures and variables. */
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struct udpiphdr
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{
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struct ipovly ui_i; /* overlaid ip structure */
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struct udphdr ui_u; /* udp header */
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};
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#define ui_next ui_i.ih_next
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#define ui_prev ui_i.ih_prev
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#define ui_x1 ui_i.ih_x1
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#define ui_pr ui_i.ih_pr
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#define ui_len ui_i.ih_len
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#define ui_src ui_i.ih_src
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#define ui_dst ui_i.ih_dst
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#define ui_sport ui_u.uh_sport
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#define ui_dport ui_u.uh_dport
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#define ui_ulen ui_u.uh_ulen
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#define ui_sum ui_u.uh_sum
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struct udpstat {
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/* input statistics: */
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u_long udps_ipackets; /* total input packets */
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u_long udps_hdrops; /* packet shorter than header */
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u_long udps_badsum; /* checksum error */
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u_long udps_badlen; /* data length larger than packet */
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u_long udps_noport; /* no socket on port */
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u_long udps_noportbcast; /* of above, arrived as broadcast */
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u_long udps_fullsock; /* not delivered, input socket full */
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u_long udpps_pcbcachemiss; /* input packets missing pcb cache */
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u_long udpps_pcbhashmiss; /* input packets not for hashed pcb */
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/* output statistics: */
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u_long udps_opackets; /* total output packets */
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};
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#if ((CPU_FAMILY==I960) && (defined __GNUC__))
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#pragma align 0 /* turn off alignment requirement */
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#endif /* CPU_FAMILY==I960 */
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extern long udpNoPorts; /* MIB-II support. Counts # of packstes drop */
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#define UDP_TTL 30 /* default time to live for UDP packets */
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/*
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* Names for UDP sysctl objects
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*/
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#define UDPCTL_CHECKSUM 1 /* checksum UDP packets */
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#define UDPCTL_MAXID 2
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#define UDPCTL_NAMES { \
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{ 0, 0 }, \
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{ "checksum", CTLTYPE_INT }, \
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void udp_ctlinput (int, struct sockaddr *, struct ip *);
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void udp_init (void);
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void udp_input (struct mbuf *, int);
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int udp_output (struct inpcb *,
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struct mbuf *, struct mbuf *, struct mbuf *);
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int udp_sysctl (int *, u_int, void *, size_t *, void *, size_t);
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int udp_usrreq (struct socket *,
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int, struct mbuf *, struct mbuf *, struct mbuf *);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCudp_varh */
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