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- /*-
- * Copyright (c) 1991 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. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. 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 7.7 (Berkeley) 5/7/91
- *
- * soft:cvs/ixemul/include/net/if_slvar.h,v 1.1.1.1 1994/04/04 04:33:10 amiga Exp
- */
-
- /*
- * 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 */
- 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_buf; /* input buffer */
- u_int sc_flags; /* see below */
- u_int sc_escape; /* =1 if last char input was FRAME_ESCAPE */
- u_int sc_bytessent;
- u_int sc_bytesrcvd;
- long sc_lasttime; /* last time a char arrived */
- long sc_starttime; /* last time a char arrived */
- long sc_abortcount; /* number of abort esacpe chars */
- #ifdef INET /* XXX */
- struct slcompress sc_comp; /* tcp compression data */
- #endif
- };
-
- /* visible flags */
- #define SC_COMPRESS 0x0002 /* compress TCP traffic */
- #define SC_NOICMP 0x0004 /* supress ICMP traffic */
- #define SC_AUTOCOMP 0x0008 /* auto-enable TCP compression */
- /* internal flags (should be separate) */
- #define SC_ABORT 0x10000 /* have been sent an abort request */
-
- /* this stuff doesn't belong here... */
- #define SLIOCGFLAGS _IOR('t', 90, int) /* get configuration flags */
- #define SLIOCSFLAGS _IOW('t', 89, int) /* set configuration flags */
- #define SLIOCGUNIT _IOR('t', 88, int) /* get slip unit number */
-