release/src/router/pppd/pppd/ccp.h

   1 /*
   2  * ccp.h - Definitions for PPP Compression Control Protocol.
   3  *
   4  * Copyright (c) 1994-2002 Paul Mackerras. All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. The name(s) of the authors of this software must not be used to
  14  *    endorse or promote products derived from this software without
  15  *    prior written permission.
  16  *
  17  * 3. Redistributions of any form whatsoever must retain the following
  18  *    acknowledgment:
  19  *    "This product includes software developed by Paul Mackerras
  20  *     <paulus@samba.org>".
  21  *
  22  * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
  23  * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  24  * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
  25  * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  26  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
  27  * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  28  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  29  *
  30  * $Id: ccp.h,v 1.12 2004/11/04 10:02:26 paulus Exp $
  31  */
  32
  33 typedef struct ccp_options {
  34     bool bsd_compress;          /* do BSD Compress? */
  35     bool deflate;               /* do Deflate? */
  36     bool predictor_1;           /* do Predictor-1? */
  37     bool predictor_2;           /* do Predictor-2? */
  38     bool deflate_correct;       /* use correct code for deflate? */
  39     bool deflate_draft;         /* use draft RFC code for deflate? */
  40     bool lzs;                   /* do Stac LZS? */
  41     bool mppc;                  /* do MPPC? */
  42     bool mppe;                  /* do MPPE? */
  43     bool mppe_40;               /* allow 40 bit encryption? */
  44     bool mppe_56;               /* allow 56 bit encryption? */
  45     bool mppe_128;              /* allow 128 bit encryption? */
  46     bool mppe_stateless;        /* allow stateless encryption */
  47     u_short bsd_bits;           /* # bits/code for BSD Compress */
  48     u_short deflate_size;       /* lg(window size) for Deflate */
  49     u_short lzs_mode;           /* LZS check mode */
  50     u_short lzs_hists;          /* number of LZS histories */
  51     short method;               /* code for chosen compression method */
  52 } ccp_options;
  53
  54 extern fsm ccp_fsm[];
  55 extern ccp_options ccp_wantoptions[];
  56 extern ccp_options ccp_gotoptions[];
  57 extern ccp_options ccp_allowoptions[];
  58 extern ccp_options ccp_hisoptions[];
  59
  60 extern struct protent ccp_protent;