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 are permitted 6 * provided that the above copyright notice and this paragraph are 7 * duplicated in all such forms and that any documentation, 8 * advertising materials, and other materials related to such 9 * distribution and use acknowledge that the software was developed 10 * by the University of California, Berkeley. The name of the 11 * University may not be used to endorse or promote products derived 12 * from this software without specific prior written permission. 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 * 17 * @(#)udp_var.h 7.5 (Berkeley) 09/20/89 18 */ 19 20 /* 21 * UDP kernel structures and variables. 22 */ 23 struct udpiphdr { 24 struct ipovly ui_i; /* overlaid ip structure */ 25 struct udphdr ui_u; /* udp header */ 26 }; 27 #define ui_next ui_i.ih_next 28 #define ui_prev ui_i.ih_prev 29 #define ui_x1 ui_i.ih_x1 30 #define ui_pr ui_i.ih_pr 31 #define ui_len ui_i.ih_len 32 #define ui_src ui_i.ih_src 33 #define ui_dst ui_i.ih_dst 34 #define ui_sport ui_u.uh_sport 35 #define ui_dport ui_u.uh_dport 36 #define ui_ulen ui_u.uh_ulen 37 #define ui_sum ui_u.uh_sum 38 39 struct udpstat { 40 int udps_hdrops; 41 int udps_badsum; 42 int udps_badlen; 43 int udps_noport; 44 int udps_ipackets; 45 int udps_opackets; 46 }; 47 48 #define UDP_TTL 30 /* deflt time to live for UDP packets */ 49 50 #ifdef KERNEL 51 struct inpcb udb; 52 struct udpstat udpstat; 53 #endif 54