date and time created 85/05/30 19:11:08 by sklower
[unix-history] / usr / src / sys / netns / sp.h
CommitLineData
8bcb7440
KS
1/* sp.h 6.1 85/05/30 */
2
3/*
4 * Definitions for Xerox NS style sequenced packet protocol
5 */
6
7struct sphdr {
8 u_char sp_cc; /* connection control */
9 u_char sp_dt; /* datastream type */
10#define SP_SP 0x80 /* system packet */
11#define SP_SA 0x40 /* send acknowledgement */
12#define SP_OB 0x20 /* attention (out of band data) */
13#define SP_EM 0x10 /* end of message */
14 u_short sp_sid; /* source connection identifier */
15 u_short sp_did; /* destination connection identifier */
16 u_short sp_seq; /* sequence number */
17 u_short sp_ack; /* acknowledge number */
18 u_short sp_alo; /* allocation number */
19};