1 /* 2 * Copyright (c) 1982, 1986 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 this notice is preserved and that due credit is given 7 * to the University of California at Berkeley. The name of the University 8 * may not be used to endorse or promote products derived from this 9 * software without specific prior written permission. This software 10 * is provided ``as is'' without express or implied warranty. 11 * 12 * @(#)udp_var.h 7.3 (Berkeley) 12/07/87 13 */ 14 15 /* 16 * UDP kernel structures and variables. 17 */ 18 struct udpiphdr { 19 struct ipovly ui_i; /* overlaid ip structure */ 20 struct udphdr ui_u; /* udp header */ 21 }; 22 #define ui_next ui_i.ih_next 23 #define ui_prev ui_i.ih_prev 24 #define ui_x1 ui_i.ih_x1 25 #define ui_pr ui_i.ih_pr 26 #define ui_len ui_i.ih_len 27 #define ui_src ui_i.ih_src 28 #define ui_dst ui_i.ih_dst 29 #define ui_sport ui_u.uh_sport 30 #define ui_dport ui_u.uh_dport 31 #define ui_ulen ui_u.uh_ulen 32 #define ui_sum ui_u.uh_sum 33 34 struct udpstat { 35 int udps_hdrops; 36 int udps_badsum; 37 int udps_badlen; 38 }; 39 40 #define UDP_TTL 30 /* deflt time to live for UDP packets */ 41 42 #ifdef KERNEL 43 struct inpcb udb; 44 struct udpstat udpstat; 45 #endif 46