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 * @(#)udp_var.h 7.7 (Berkeley) 6/28/90 34 * 386BSD: $Id: udp_var.h,v 1.1 93/01/29 14:35:42 bill Exp $ 35 */ 36 37 /* 38 * UDP kernel structures and variables. 39 */ 40 struct udpiphdr { 41 struct ipovly ui_i; /* overlaid ip structure */ 42 struct udphdr ui_u; /* udp header */ 43 }; 44 #define ui_next ui_i.ih_next 45 #define ui_prev ui_i.ih_prev 46 #define ui_x1 ui_i.ih_x1 47 #define ui_pr ui_i.ih_pr 48 #define ui_len ui_i.ih_len 49 #define ui_src ui_i.ih_src 50 #define ui_dst ui_i.ih_dst 51 #define ui_sport ui_u.uh_sport 52 #define ui_dport ui_u.uh_dport 53 #define ui_ulen ui_u.uh_ulen 54 #define ui_sum ui_u.uh_sum 55 56 struct udpstat { 57 /* input statistics: */ 58 int udps_ipackets; /* total input packets */ 59 int udps_hdrops; /* packet shorter than header */ 60 int udps_badsum; /* checksum error */ 61 int udps_badlen; /* data length larger than packet */ 62 int udps_noport; /* no socket on port */ 63 int udps_noportbcast; /* of above, arrived as broadcast */ 64 int udps_fullsock; /* not delivered, input socket full */ 65 int udpps_pcbcachemiss; /* input packets missing pcb cache */ 66 /* output statistics: */ 67 int udps_opackets; /* total output packets */ 68 }; 69 70 #define UDP_TTL 30 /* default time to live for UDP packets */ 71 72 #ifdef KERNEL 73 struct inpcb udb; 74 struct udpstat udpstat; 75 #endif 76