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Annotation of 43BSDReno/sys/netns/sp.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1984, 1985, 1986, 1987 Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution is only permitted until one year after the first shipment
                      6:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
                      7:  * binary forms are permitted provided that: (1) source distributions retain
                      8:  * this entire copyright notice and comment, and (2) distributions including
                      9:  * binaries display the following acknowledgement:  This product includes
                     10:  * software developed by the University of California, Berkeley and its
                     11:  * contributors'' in the documentation or other materials provided with the
                     12:  * distribution and in all advertising materials mentioning features or use
                     13:  * of this software.  Neither the name of the University nor the names of
                     14:  * its contributors may be used to endorse or promote products derived from
                     15:  * this software without specific prior written permission.
                     16:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     17:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     18:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     19:  *
                     20:  *     @(#)sp.h        7.4 (Berkeley) 6/28/90
                     21:  */
                     22: 
                     23: /*
                     24:  * Definitions for Xerox NS style sequenced packet protocol
                     25:  */
                     26: 
                     27: struct sphdr {
                     28:        u_char  sp_cc;          /* connection control */
                     29:        u_char  sp_dt;          /* datastream type */
                     30: #define        SP_SP   0x80            /* system packet */
                     31: #define        SP_SA   0x40            /* send acknowledgement */
                     32: #define        SP_OB   0x20            /* attention (out of band data) */
                     33: #define        SP_EM   0x10            /* end of message */
                     34:        u_short sp_sid;         /* source connection identifier */
                     35:        u_short sp_did;         /* destination connection identifier */
                     36:        u_short sp_seq;         /* sequence number */
                     37:        u_short sp_ack;         /* acknowledge number */
                     38:        u_short sp_alo;         /* allocation number */
                     39: };

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