ccp.h

eCos操作系统源码

//==========================================================================
//
//      include/ccp.h
//
//==========================================================================
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// This file is part of eCos, the Embedded Configurable Operating System.
// Portions created by Nick Garnett are
// Copyright (C) 2003 eCosCentric Ltd.
//
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//####BSDCOPYRIGHTBEGIN####
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// Portions of this software may have been derived from OpenBSD, 
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/*
 * ccp.h - Definitions for PPP Compression Control Protocol.
 *
 * Copyright (c) 1994 The Australian National University.
 * All rights reserved.
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation is hereby granted, provided that the above copyright
 * notice appears in all copies.  This software is provided without any
 * warranty, express or implied. The Australian National University
 * makes no representations about the suitability of this software for
 * any purpose.
 *
 * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
 * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
 * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 *
 * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
 * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
 * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
 * OR MODIFICATIONS.
 *
 * $FreeBSD: src/usr.sbin/pppd/ccp.h,v 1.8 1999/08/28 01:19:00 peter Exp $
 */

typedef struct ccp_options {
    u_int bsd_compress: 1;	/* do BSD Compress? */
    u_int deflate: 1;		/* do Deflate? (RFC code) */
    u_int baddeflate: 1;	/* do Deflate? (Magnalink!) */
    u_int predictor_1: 1;	/* do Predictor-1? */
    u_int predictor_2: 1;	/* do Predictor-2? */
    u_int deflate_correct: 1;	/* use correct code for deflate? */
    u_int deflate_draft: 1;	/* use draft RFC code for deflate? */
    u_short bsd_bits;		/* # bits/code for BSD Compress */
    u_short deflate_size;	/* lg(window size) for Deflate */
    u_short baddeflate_size;	/* lg(window size) for Deflate */
    short method;		/* code for chosen compression method */
} ccp_options;

extern fsm ccp_fsm[];
extern ccp_options ccp_wantoptions[];
extern ccp_options ccp_gotoptions[];
extern ccp_options ccp_allowoptions[];
extern ccp_options ccp_hisoptions[];

extern struct protent ccp_protent;