1 /* $OpenBSD: if_slvar.h,v 1.12 2003/12/07 15:41:27 markus Exp $ */ 2 /* $NetBSD: if_slvar.h,v 1.16 1996/05/07 02:40:46 thorpej Exp $ */ 3 4 /*- 5 * Copyright (c) 1991, 1993 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 * @(#)if_slvar.h 8.3 (Berkeley) 2/1/94 33 */ 34 35 #ifndef _NET_IF_SLVAR_H_ 36 #define _NET_IF_SLVAR_H_ 37 38 /* 39 * Definitions for SLIP interface data structures 40 * 41 * (This exists so programs like slstats can get at the definition 42 * of sl_softc.) 43 */ 44 struct sl_softc { 45 struct ifnet sc_if; /* network-visible interface */ 46 int sc_unit; /* XXX unit number */ 47 struct ifqueue sc_fastq; /* interactive output 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 #if defined(__NetBSD__) || defined(__OpenBSD__) 61 int sc_oldbufsize; /* previous output buffer size */ 62 int sc_oldbufquot; /* previous output buffer quoting */ 63 #endif 64 #ifdef INET /* XXX */ 65 struct slcompress sc_comp; /* tcp compression data */ 66 #endif 67 caddr_t sc_bpf; /* BPF data */ 68 struct timeval sc_lastpacket; /* for watchdog */ 69 LIST_ENTRY(sl_softc) sc_list; /* all slip interfaces */ 70 }; 71 72 /* 73 * Statistics. 74 */ 75 struct slstat { 76 u_int sl_ibytes; /* bytes received */ 77 u_int sl_ipackets; /* packets received */ 78 u_int sl_obytes; /* bytes sent */ 79 u_int sl_opackets; /* packets sent */ 80 }; 81 82 struct vjstat { 83 u_int vjs_packets; /* outbound packets */ 84 u_int vjs_compressed; /* outbound compressed packets */ 85 u_int vjs_searches; /* searches for connection state */ 86 u_int vjs_misses; /* times couldn't find conn. state */ 87 u_int vjs_uncompressedin; /* inbound uncompressed packets */ 88 u_int vjs_compressedin; /* inbound compressed packets */ 89 u_int vjs_errorin; /* inbound unknown type packets */ 90 u_int vjs_tossed; /* inbound packets tossed because of error */ 91 }; 92 93 struct sl_stats { 94 struct slstat sl; /* basic PPP statistics */ 95 struct vjstat vj; /* VJ header compression statistics */ 96 }; 97 98 struct ifslstatsreq { 99 char ifr_name[IFNAMSIZ]; 100 struct sl_stats stats; 101 }; 102 103 /* internal flags */ 104 #define SC_ERROR 0x0001 /* had an input error */ 105 106 /* visible flags */ 107 #define SC_COMPRESS IFF_LINK0 /* compress TCP traffic */ 108 #define SC_NOICMP IFF_LINK1 /* supress ICMP traffic */ 109 #define SC_AUTOCOMP IFF_LINK2 /* auto-enable TCP compression */ 110 111 /* 112 * These two are interface ioctls so that pppstats can do them on 113 * a socket without having to open the serial device. 114 */ 115 #define SIOCGSLSTATS _IOWR('i', 123, struct ifslstatsreq) 116 117 #ifdef _KERNEL 118 void slattach(int); 119 void slclose(struct tty *); 120 void slinput(int, struct tty *); 121 int slioctl(struct ifnet *, u_long, caddr_t); 122 int slopen(dev_t, struct tty *); 123 int sloutput(struct ifnet *, 124 struct mbuf *, struct sockaddr *, struct rtentry *); 125 void slstart(struct tty *); 126 int sltioctl(struct tty *, u_long, caddr_t, int); 127 #endif /* _KERNEL */ 128 #endif /* _NET_IF_SLVAR_H_ */ 129