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33 * @(#)sp.h 8.1 (Berkeley) 6/10/93
34 * $FreeBSD: src/sys/netns/sp.h,v 1.8 1999/08/28 00:49:52 peter Exp $
35 * $DragonFly: src/sys/netproto/ns/sp.h,v 1.2 2003/06/17 04:28:53 dillon Exp $
42 * Definitions for Xerox NS style sequenced packet protocol
46 u_char sp_cc; /* connection control */
47 u_char sp_dt; /* datastream type */
48 #define SP_SP 0x80 /* system packet */
49 #define SP_SA 0x40 /* send acknowledgement */
50 #define SP_OB 0x20 /* attention (out of band data) */
51 #define SP_EM 0x10 /* end of message */
52 u_short sp_sid; /* source connection identifier */
53 u_short sp_did; /* destination connection identifier */
54 u_short sp_seq; /* sequence number */
55 u_short sp_ack; /* acknowledge number */
56 u_short sp_alo; /* allocation number */