| 1 | /* $NetBSD: if_slvar.h,v 1.33 2007/07/14 21:02:41 ad Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 1991, 1993 |
| 5 | * The Regents of the University of California. All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * 3. Neither the name of the University nor the names of its contributors |
| 16 | * may be used to endorse or promote products derived from this software |
| 17 | * without specific prior written permission. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 29 | * SUCH DAMAGE. |
| 30 | * |
| 31 | * @(#)if_slvar.h 8.4 (Berkeley) 1/9/95 |
| 32 | */ |
| 33 | |
| 34 | #ifndef _NET_IF_SLVAR_H_ |
| 35 | #define _NET_IF_SLVAR_H_ |
| 36 | |
| 37 | /* |
| 38 | * Definitions for SLIP interface data structures |
| 39 | * |
| 40 | * (This exists so programs like slstats can get at the definition |
| 41 | * of sl_softc.) |
| 42 | */ |
| 43 | struct sl_softc { |
| 44 | struct ifnet sc_if; /* network-visible interface */ |
| 45 | int sc_unit; /* XXX unit number */ |
| 46 | struct ifqueue sc_fastq; /* interactive output queue */ |
| 47 | struct ifqueue sc_inq; /* input queue */ |
| 48 | struct tty *sc_ttyp; /* pointer to tty structure */ |
| 49 | u_char *sc_mp; /* pointer to next available buf char */ |
| 50 | u_char *sc_ep; /* pointer to last available buf char */ |
| 51 | u_char *sc_pktstart; /* pointer to beginning of packet */ |
| 52 | struct mbuf *sc_mbuf; /* input buffer */ |
| 53 | u_int sc_flags; /* see below */ |
| 54 | u_int sc_escape; /* =1 if last char input was FRAME_ESCAPE */ |
| 55 | long sc_lasttime; /* last time a char arrived */ |
| 56 | long sc_abortcount; /* number of abort esacpe chars */ |
| 57 | long sc_starttime; /* time of first abort in window */ |
| 58 | long sc_oqlen; /* previous output queue size */ |
| 59 | long sc_otimeout; /* number of times output's stalled */ |
| 60 | void *sc_si; /* softintr handle */ |
| 61 | #ifdef __NetBSD__ |
| 62 | int sc_oldbufsize; /* previous output buffer size */ |
| 63 | int sc_oldbufquot; /* previous output buffer quoting */ |
| 64 | #endif |
| 65 | #ifdef INET /* XXX */ |
| 66 | struct slcompress sc_comp; /* tcp compression data */ |
| 67 | #endif |
| 68 | struct bintime sc_lastpacket; /* for watchdog */ |
| 69 | LIST_ENTRY(sl_softc) sc_iflist; |
| 70 | }; |
| 71 | |
| 72 | /* internal flags */ |
| 73 | #define SC_ERROR 0x0001 /* had an input error */ |
| 74 | |
| 75 | /* visible flags */ |
| 76 | #define SC_COMPRESS IFF_LINK0 /* compress TCP traffic */ |
| 77 | #define SC_NOICMP IFF_LINK1 /* supress ICMP traffic */ |
| 78 | #define SC_AUTOCOMP IFF_LINK2 /* auto-enable TCP compression */ |
| 79 | |
| 80 | #endif /* _NET_IF_SLVAR_H_ */ |
| 81 | |