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/* $OpenBSD: if_slvar.h,v 1.13 2007/11/26 09:28:33 martynas Exp $ */
/* $NetBSD: if_slvar.h,v 1.16 1996/05/07 02:40:46 thorpej Exp $ */
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)if_slvar.h 8.3 (Berkeley) 2/1/94
*/
#ifndef _NET_IF_SLVAR_H_
#define _NET_IF_SLVAR_H_
/*
* Definitions for SLIP interface data structures
*
* (This exists so programs like slstats can get at the definition
* of sl_softc.)
*/
struct sl_softc {
struct ifnet sc_if; /* network-visible interface */
int sc_unit; /* XXX unit number */
struct ifqueue sc_fastq; /* interactive output queue */
struct tty *sc_ttyp; /* pointer to tty structure */
u_char *sc_mp; /* pointer to next available buf char */
u_char *sc_ep; /* pointer to last available buf char */
u_char *sc_pktstart; /* pointer to beginning of packet */
struct mbuf *sc_mbuf; /* input buffer */
u_int sc_flags; /* see below */
u_int sc_escape; /* =1 if last char input was FRAME_ESCAPE */
long sc_lasttime; /* last time a char arrived */
long sc_abortcount; /* number of abort esacpe chars */
long sc_starttime; /* time of first abort in window */
long sc_oqlen; /* previous output queue size */
long sc_otimeout; /* number of times output's stalled */
#if defined(__NetBSD__) || defined(__OpenBSD__)
int sc_oldbufsize; /* previous output buffer size */
int sc_oldbufquot; /* previous output buffer quoting */
#endif
#ifdef INET /* XXX */
struct slcompress sc_comp; /* tcp compression data */
#endif
caddr_t sc_bpf; /* BPF data */
struct timeval sc_lastpacket; /* for watchdog */
LIST_ENTRY(sl_softc) sc_list; /* all slip interfaces */
};
/*
* Statistics.
*/
struct slstat {
u_int sl_ibytes; /* bytes received */
u_int sl_ipackets; /* packets received */
u_int sl_obytes; /* bytes sent */
u_int sl_opackets; /* packets sent */
};
struct vjstat {
u_int vjs_packets; /* outbound packets */
u_int vjs_compressed; /* outbound compressed packets */
u_int vjs_searches; /* searches for connection state */
u_int vjs_misses; /* times couldn't find conn. state */
u_int vjs_uncompressedin; /* inbound uncompressed packets */
u_int vjs_compressedin; /* inbound compressed packets */
u_int vjs_errorin; /* inbound unknown type packets */
u_int vjs_tossed; /* inbound packets tossed because of error */
};
struct sl_stats {
struct slstat sl; /* basic PPP statistics */
struct vjstat vj; /* VJ header compression statistics */
};
struct ifslstatsreq {
char ifr_name[IFNAMSIZ];
struct sl_stats stats;
};
/* internal flags */
#define SC_ERROR 0x0001 /* had an input error */
/* visible flags */
#define SC_COMPRESS IFF_LINK0 /* compress TCP traffic */
#define SC_NOICMP IFF_LINK1 /* suppress ICMP traffic */
#define SC_AUTOCOMP IFF_LINK2 /* auto-enable TCP compression */
/*
* These two are interface ioctls so that pppstats can do them on
* a socket without having to open the serial device.
*/
#define SIOCGSLSTATS _IOWR('i', 123, struct ifslstatsreq)
#ifdef _KERNEL
void slattach(int);
void slclose(struct tty *);
void slinput(int, struct tty *);
int slioctl(struct ifnet *, u_long, caddr_t);
int slopen(dev_t, struct tty *);
int sloutput(struct ifnet *,
struct mbuf *, struct sockaddr *, struct rtentry *);
void slstart(struct tty *);
int sltioctl(struct tty *, u_long, caddr_t, int);
#endif /* _KERNEL */
#endif /* _NET_IF_SLVAR_H_ */
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