udp_var.h revision 1.4
1 /* 2 * Copyright (c) 1982, 1986, 1989 Regents of the University of California. 3 * 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 * from: @(#)udp_var.h 7.7 (Berkeley) 6/28/90 34 * $Id: udp_var.h,v 1.4 1994/01/08 23:17:20 mycroft Exp $ 35 */ 36 37 #ifndef _NETINET_UDP_VAR_H_ 38 #define _NETINET_UDP_VAR_H_ 39 40 /* 41 * UDP kernel structures and variables. 42 */ 43 struct 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 59 struct udpstat { 60 /* input statistics: */ 61 int udps_ipackets; /* total input packets */ 62 int udps_hdrops; /* packet shorter than header */ 63 int udps_badsum; /* checksum error */ 64 int udps_badlen; /* data length larger than packet */ 65 int udps_noport; /* no socket on port */ 66 int udps_noportbcast; /* of above, arrived as broadcast */ 67 int udps_fullsock; /* not delivered, input socket full */ 68 int udpps_pcbcachemiss; /* input packets missing pcb cache */ 69 /* output statistics: */ 70 int udps_opackets; /* total output packets */ 71 }; 72 73 #define UDP_TTL 30 /* default time to live for UDP packets */ 74 75 #ifdef KERNEL 76 struct inpcb udb; 77 struct udpstat udpstat; 78 79 void udp_ctlinput __P((int, struct sockaddr *, struct ip *)); 80 void udp_init __P((void)); 81 void udp_input __P((struct mbuf *, int)); 82 int udp_output 83 __P((struct inpcb *, struct mbuf *, struct mbuf *, struct mbuf *)); 84 int udp_usrreq 85 __P((struct socket *, int, struct mbuf *, struct mbuf *, 86 struct mbuf *)); 87 #endif 88 89 #endif /* !_NETINET_UDP_VAR_H_ */ 90
Indexes created Tue Sep 23 14:10:03 GMT 2025