udp_var.h revision 6472
11541Srgrimes/* 21541Srgrimes * Copyright (c) 1982, 1986, 1989, 1993 31541Srgrimes * The Regents of the University of California. All rights reserved. 41541Srgrimes * 51541Srgrimes * Redistribution and use in source and binary forms, with or without 61541Srgrimes * modification, are permitted provided that the following conditions 71541Srgrimes * are met: 81541Srgrimes * 1. Redistributions of source code must retain the above copyright 91541Srgrimes * notice, this list of conditions and the following disclaimer. 101541Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111541Srgrimes * notice, this list of conditions and the following disclaimer in the 121541Srgrimes * documentation and/or other materials provided with the distribution. 131541Srgrimes * 3. All advertising materials mentioning features or use of this software 141541Srgrimes * must display the following acknowledgement: 151541Srgrimes * This product includes software developed by the University of 161541Srgrimes * California, Berkeley and its contributors. 171541Srgrimes * 4. Neither the name of the University nor the names of its contributors 181541Srgrimes * may be used to endorse or promote products derived from this software 191541Srgrimes * without specific prior written permission. 201541Srgrimes * 211541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311541Srgrimes * SUCH DAMAGE. 321541Srgrimes * 331541Srgrimes * @(#)udp_var.h 8.1 (Berkeley) 6/10/93 346472Swollman * $Id: udp_var.h,v 1.3 1994/08/21 05:27:42 paul Exp $ 351541Srgrimes */ 361541Srgrimes 372169Spaul#ifndef _NETINET_UDP_VAR_H_ 382169Spaul#define _NETINET_UDP_VAR_H_ 392169Spaul 401541Srgrimes/* 411541Srgrimes * UDP kernel structures and variables. 421541Srgrimes */ 431541Srgrimesstruct udpiphdr { 441541Srgrimes struct ipovly ui_i; /* overlaid ip structure */ 451541Srgrimes struct udphdr ui_u; /* udp header */ 461541Srgrimes}; 471541Srgrimes#define ui_next ui_i.ih_next 481541Srgrimes#define ui_prev ui_i.ih_prev 491541Srgrimes#define ui_x1 ui_i.ih_x1 501541Srgrimes#define ui_pr ui_i.ih_pr 511541Srgrimes#define ui_len ui_i.ih_len 521541Srgrimes#define ui_src ui_i.ih_src 531541Srgrimes#define ui_dst ui_i.ih_dst 541541Srgrimes#define ui_sport ui_u.uh_sport 551541Srgrimes#define ui_dport ui_u.uh_dport 561541Srgrimes#define ui_ulen ui_u.uh_ulen 571541Srgrimes#define ui_sum ui_u.uh_sum 581541Srgrimes 591541Srgrimesstruct udpstat { 601541Srgrimes /* input statistics: */ 611541Srgrimes u_long udps_ipackets; /* total input packets */ 621541Srgrimes u_long udps_hdrops; /* packet shorter than header */ 631541Srgrimes u_long udps_badsum; /* checksum error */ 641541Srgrimes u_long udps_badlen; /* data length larger than packet */ 651541Srgrimes u_long udps_noport; /* no socket on port */ 661541Srgrimes u_long udps_noportbcast; /* of above, arrived as broadcast */ 671541Srgrimes u_long udps_fullsock; /* not delivered, input socket full */ 681541Srgrimes u_long udpps_pcbcachemiss; /* input packets missing pcb cache */ 691541Srgrimes /* output statistics: */ 701541Srgrimes u_long udps_opackets; /* total output packets */ 711541Srgrimes}; 721541Srgrimes 731541Srgrimes/* 741541Srgrimes * Names for UDP sysctl objects 751541Srgrimes */ 761541Srgrimes#define UDPCTL_CHECKSUM 1 /* checksum UDP packets */ 776472Swollman#define UDPCTL_STATS 2 /* statistics (read-only) */ 786472Swollman#define UDPCTL_MAXDGRAM 3 /* max datagram size */ 796472Swollman#define UDPCTL_RECVSPACE 4 /* default receive buffer space */ 806472Swollman#define UDPCTL_MAXID 5 811541Srgrimes 821541Srgrimes#define UDPCTL_NAMES { \ 831541Srgrimes { 0, 0 }, \ 841541Srgrimes { "checksum", CTLTYPE_INT }, \ 856472Swollman { "stats", CTLTYPE_STRUCT }, \ 866472Swollman { "maxdgram", CTLTYPE_INT }, \ 876472Swollman { "recvspace", CTLTYPE_INT }, \ 881541Srgrimes} 891541Srgrimes 901541Srgrimes#ifdef KERNEL 916472Swollmanextern struct inpcb udb; 926472Swollmanextern struct udpstat udpstat; 931541Srgrimes 941541Srgrimesvoid udp_ctlinput __P((int, struct sockaddr *, struct ip *)); 951541Srgrimesvoid udp_init __P((void)); 961541Srgrimesvoid udp_input __P((struct mbuf *, int)); 971541Srgrimesint udp_output __P((struct inpcb *, 981541Srgrimes struct mbuf *, struct mbuf *, struct mbuf *)); 991541Srgrimesint udp_sysctl __P((int *, u_int, void *, size_t *, void *, size_t)); 1001541Srgrimesint udp_usrreq __P((struct socket *, 1011541Srgrimes int, struct mbuf *, struct mbuf *, struct mbuf *)); 1021541Srgrimes#endif 1032169Spaul 1042169Spaul#endif 105