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6cfe221b | 1 | /*- |
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2 | * Copyright (c) 1991, 1993 |
3 | * The Regents of the University of California. All rights reserved. | |
6cfe221b | 4 | * |
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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. | |
6cfe221b | 20 | * |
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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 | * @(#)if_slvar.h 8.1 (Berkeley) 6/10/93 | |
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34 | * |
35 | * $Header: if_slvar.h,v 1.3 89/05/31 02:25:18 van Exp $ | |
36 | */ | |
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37 | |
38 | /* | |
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39 | * Definitions for SLIP interface data structures |
40 | * | |
6cfe221b | 41 | * (This exists so programs like slstats can get at the definition |
9de3e30d | 42 | * of sl_softc.) |
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43 | */ |
44 | struct sl_softc { | |
45 | struct ifnet sc_if; /* network-visible interface */ | |
9de3e30d | 46 | struct ifqueue sc_fastq; /* interactive output queue */ |
404373be | 47 | struct tty *sc_ttyp; /* pointer to tty structure */ |
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48 | u_char *sc_mp; /* pointer to next available buf char */ |
49 | u_char *sc_ep; /* pointer to last available buf char */ | |
50 | u_char *sc_buf; /* input buffer */ | |
51 | u_int sc_flags; /* see below */ | |
52 | u_int sc_escape; /* =1 if last char input was FRAME_ESCAPE */ | |
9de3e30d | 53 | long sc_lasttime; /* last time a char arrived */ |
9de3e30d | 54 | long sc_abortcount; /* number of abort esacpe chars */ |
1db6ff40 | 55 | long sc_starttime; /* time of first abort in window */ |
270f7144 | 56 | #ifdef INET /* XXX */ |
9de3e30d | 57 | struct slcompress sc_comp; /* tcp compression data */ |
270f7144 | 58 | #endif |
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59 | }; |
60 | ||
8985215b | 61 | /* visible flags */ |
1db6ff40 MK |
62 | #define SC_COMPRESS IFF_LINK0 /* compress TCP traffic */ |
63 | #define SC_NOICMP IFF_LINK1 /* supress ICMP traffic */ | |
64 | #define SC_AUTOCOMP IFF_LINK2 /* auto-enable TCP compression */ | |
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65 | |
66 | /* this stuff doesn't belong here... */ | |
06de6ce5 | 67 | #define SLIOCGUNIT _IOR('t', 88, int) /* get slip unit number */ |
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68 | |
69 | #ifdef KERNEL | |
70 | void slattach __P((void)); | |
71 | void slclose __P((struct tty *)); | |
72 | void slinput __P((int, struct tty *)); | |
73 | int slioctl __P((struct ifnet *, int, caddr_t)); | |
74 | int slopen __P((dev_t, struct tty *)); | |
75 | int sloutput __P((struct ifnet *, | |
76 | struct mbuf *, struct sockaddr *, struct rtentry *)); | |
77 | void slstart __P((struct tty *)); | |
78 | int sltioctl __P((struct tty *, int, caddr_t, int)); | |
79 | #endif |