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Annotation of sys/net/slip.h, Revision 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_ */