1 /* $NetBSD: udp_var.h,v 1.18 2002/05/12 20:33:51 matt Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1986, 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)udp_var.h 8.1 (Berkeley) 6/10/93 36 */ 37 38 #ifndef _NETINET_UDP_VAR_H_ 39 #define _NETINET_UDP_VAR_H_ 40 41 /* 42 * UDP kernel structures and variables. 43 */ 44 struct udpiphdr { 45 struct ipovly ui_i; /* overlaid ip structure */ 46 struct udphdr ui_u; /* udp header */ 47 } __attribute__((__packed__)); 48 #define ui_x1 ui_i.ih_x1 49 #define ui_pr ui_i.ih_pr 50 #define ui_len ui_i.ih_len 51 #define ui_src ui_i.ih_src 52 #define ui_dst ui_i.ih_dst 53 #define ui_sport ui_u.uh_sport 54 #define ui_dport ui_u.uh_dport 55 #define ui_ulen ui_u.uh_ulen 56 #define ui_sum ui_u.uh_sum 57 58 struct udpstat { 59 /* input statistics: */ 60 u_quad_t udps_ipackets; /* total input packets */ 61 u_quad_t udps_hdrops; /* packet shorter than header */ 62 u_quad_t udps_badsum; /* checksum error */ 63 u_quad_t udps_badlen; /* data length larger than packet */ 64 u_quad_t udps_noport; /* no socket on port */ 65 u_quad_t udps_noportbcast; /* of above, arrived as broadcast */ 66 u_quad_t udps_fullsock; /* not delivered, input socket full */ 67 u_quad_t udps_pcbhashmiss; /* input packets missing pcb hash */ 68 /* output statistics: */ 69 u_quad_t udps_opackets; /* total output packets */ 70 }; 71 72 /* 73 * Names for UDP sysctl objects 74 */ 75 #define UDPCTL_CHECKSUM 1 /* checksum UDP packets */ 76 #define UDPCTL_SENDSPACE 2 /* default send buffer */ 77 #define UDPCTL_RECVSPACE 3 /* default recv buffer */ 78 #define UDPCTL_MAXID 4 79 80 #define UDPCTL_NAMES { \ 81 { 0, 0 }, \ 82 { "checksum", CTLTYPE_INT }, \ 83 { "sendspace", CTLTYPE_INT }, \ 84 { "recvspace", CTLTYPE_INT }, \ 85 } 86 87 #ifdef _KERNEL 88 extern struct inpcbtable udbtable; 89 extern struct udpstat udpstat; 90 91 void *udp_ctlinput __P((int, struct sockaddr *, void *)); 92 void udp_init __P((void)); 93 void udp_input __P((struct mbuf *, ...)); 94 int udp_output __P((struct mbuf *, ...)); 95 int udp_sysctl __P((int *, u_int, void *, size_t *, void *, size_t)); 96 int udp_usrreq __P((struct socket *, 97 int, struct mbuf *, struct mbuf *, struct mbuf *, struct proc *)); 98 #endif 99 100 #endif /* _NETINET_UDP_VAR_H_ */ 101