46 lines
1.5 KiB
C
46 lines
1.5 KiB
C
/*
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* Definitions that user level programs might need to know to interact
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* with serial line IP (slip) lines.
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* @(#) $Header: /cvsroot/src/sys/net/slip.h,v 1.1 1993/03/25 00:30:55 cgd Exp $ (LBL)
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*
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* Copyright (c) 1990 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that the above copyright notice and this paragraph are
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* duplicated in all such forms and that any documentation,
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* advertising materials, and other materials related to such
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* distribution and use acknowledge that the software was developed
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* by the University of California, Berkeley. The name of the
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* University may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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/*
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* ioctl to get slip interface unit number (e.g., sl0, sl1, etc.)
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* assigned to some terminal line with a slip module pushed on it.
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*/
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#ifdef __STDC__
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#define SLIOGUNIT _IOR('B', 1, int)
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#else
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#define SLIOGUNIT _IOR(B, 1, int)
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#endif
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/*
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* definitions of the pseudo- link-level header attached to slip
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* packets grabbed by the packet filter (bpf) traffic monitor.
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*/
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#define SLIP_HDRLEN 16
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#define SLX_DIR 0
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#define SLX_CHDR 1
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#define CHDR_LEN 15
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#define SLIPDIR_IN 0
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#define SLIPDIR_OUT 1
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