/*
 * Copyright (c) 1984, 1985, 1986, 1987 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 *	@(#)spidp.h	7.3 (Berkeley) 6/29/88
 */

/*
 * Definitions for NS(tm) Internet Datagram Protocol
 * containing a Sequenced Packet Protocol packet.
 */
struct spidp {
	struct idp	si_i;
	struct sphdr 	si_s;
};
struct spidp_q {
	struct spidp_q	*si_next;
	struct spidp_q	*si_prev;
};
#define SI(x)	((struct spidp *)x)
#define si_sum	si_i.idp_sum
#define si_len	si_i.idp_len
#define si_tc	si_i.idp_tc
#define si_pt	si_i.idp_pt
#define si_dna	si_i.idp_dna
#define si_sna	si_i.idp_sna
#define si_sport	si_i.idp_sna.x_port
#define si_cc	si_s.sp_cc
#define si_dt	si_s.sp_dt
#define si_sid	si_s.sp_sid
#define si_did	si_s.sp_did
#define si_seq	si_s.sp_seq
#define si_ack	si_s.sp_ack
#define si_alo	si_s.sp_alo