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Annotation of sys/net/slip.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: slip.h,v 1.4 2003/06/02 23:28:12 millert Exp $        */
                      2: /*     $NetBSD: slip.h,v 1.6 1994/06/29 06:36:53 cgd Exp $     */
                      3:
                      4: /*-
                      5:  * Copyright (c) 1994
                      6:  *     The Regents of the University of California.  All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. Neither the name of the University nor the names of its contributors
                     17:  *    may be used to endorse or promote products derived from this software
                     18:  *    without specific prior written permission.
                     19:  *
                     20:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     21:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     22:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     23:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     24:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     25:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     26:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     27:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     28:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     29:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     30:  * SUCH DAMAGE.
                     31:  *
                     32:  *     @(#)slip.h      8.1 (Berkeley) 2/12/94
                     33:  */
                     34:
                     35: #ifndef _NET_SLIP_H_
                     36: #define _NET_SLIP_H_
                     37:
                     38: /* Ioctls operating on SLIP ttys. */
                     39: #define        SLIOCGUNIT      _IOR('t', 88, int)      /* get slip unit number */
                     40:
                     41: /*
                     42:  * Definitions of the pseudo-link-level header attached to slip
                     43:  * packets grabbed by the packet filter (bpf) traffic monitor.
                     44:  */
                     45: #define        SLIP_HDRLEN     16              /* BPF SLIP header length */
                     46:
                     47: /* Offsets into BPF SLIP header. */
                     48: #define        SLX_DIR         0               /* direction; see below */
                     49: #define        SLX_CHDR        1               /* compressed header data */
                     50: #define        CHDR_LEN        15              /* length of compressed header data */
                     51:
                     52: #define        SLIPDIR_IN      0               /* incoming */
                     53: #define        SLIPDIR_OUT     1               /* outgoing */
                     54: #endif /* _NET_SLIP_H_ */