1 /*- 2 * Copyright (c) 1991 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * from: @(#)if_slvar.h 7.7 (Berkeley) 5/7/91 34 * $Id: if_slvar.h,v 1.5 1993/05/20 03:06:03 cgd Exp $ 35 */ 36 37 #ifndef _NET_IF_SLVAR_H_ 38 #define _NET_IF_SLVAR_H_ 39 40 /* 41 * Definitions for SLIP interface data structures 42 * 43 * (This exists so programs like slstats can get at the definition 44 * of sl_softc.) 45 */ 46 struct sl_softc { 47 struct ifnet sc_if; /* network-visible interface */ 48 struct ifqueue sc_fastq; /* interactive output queue */ 49 struct tty *sc_ttyp; /* pointer to tty structure */ 50 u_char *sc_mp; /* pointer to next available buf char */ 51 u_char *sc_ep; /* pointer to last available buf char */ 52 u_char *sc_buf; /* input buffer */ 53 u_int sc_flags; /* see below */ 54 u_int sc_escape; /* =1 if last char input was FRAME_ESCAPE */ 55 u_int sc_bytessent; 56 u_int sc_bytesrcvd; 57 long sc_lasttime; /* last time a char arrived */ 58 long sc_starttime; /* last time a char arrived */ 59 long sc_abortcount; /* number of abort esacpe chars */ 60 #ifdef INET /* XXX */ 61 struct slcompress sc_comp; /* tcp compression data */ 62 #endif 63 caddr_t sc_bpf; 64 }; 65 66 /* visible flags */ 67 #define SC_COMPRESS 0x0002 /* compress TCP traffic */ 68 #define SC_NOICMP 0x0004 /* supress ICMP traffic */ 69 #define SC_AUTOCOMP 0x0008 /* auto-enable TCP compression */ 70 /* internal flags (should be separate) */ 71 #define SC_ERROR 0x08000 /* had an input error - 30 Aug 92*/ 72 #define SC_ABORT 0x10000 /* have been sent an abort request */ 73 74 /* this stuff doesn't belong here... */ 75 #define SLIOCGFLAGS _IOR('t', 90, int) /* get configuration flags */ 76 #define SLIOCSFLAGS _IOW('t', 89, int) /* set configuration flags */ 77 #define SLIOCGUNIT _IOR('t', 88, int) /* get slip unit number */ 78 79 #endif /* !_NET_IF_SLVAR_H_ */ 80