1 /* 2 * Copyright (c) 1984, 1985, 1986, 1987 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 * @(#)spidp.h 7.2 (Berkeley) 01/20/88 13 */ 14 15 /* 16 * Definitions for NS(tm) Internet Datagram Protocol 17 * containing a Sequenced Packet Protocol packet. 18 */ 19 struct spidp { 20 struct idp si_i; 21 struct sphdr si_s; 22 }; 23 struct spidp_q { 24 struct spidp_q *si_next; 25 struct spidp_q *si_prev; 26 }; 27 #define SI(x) ((struct spidp *)x) 28 #define si_sum si_i.idp_sum 29 #define si_len si_i.idp_len 30 #define si_tc si_i.idp_tc 31 #define si_pt si_i.idp_pt 32 #define si_dna si_i.idp_dna 33 #define si_sna si_i.idp_sna 34 #define si_sport si_i.idp_sna.x_port 35 #define si_cc si_s.sp_cc 36 #define si_dt si_s.sp_dt 37 #define si_sid si_s.sp_sid 38 #define si_did si_s.sp_did 39 #define si_seq si_s.sp_seq 40 #define si_ack si_s.sp_ack 41 #define si_alo si_s.sp_alo 42