85 lines
3.3 KiB
C
85 lines
3.3 KiB
C
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/*
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* ng_mppc.h
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*
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* Copyright (c) 1996-2000 Whistle Communications, Inc.
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* All rights reserved.
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*
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* Subject to the following obligations and disclaimer of warranty, use and
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* redistribution of this software, in source or object code forms, with or
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* without modifications are expressly permitted by Whistle Communications;
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* provided, however, that:
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* 1. Any and all reproductions of the source or object code must include the
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* copyright notice above and the following disclaimer of warranties; and
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* 2. No rights are granted, in any manner or form, to use Whistle
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* Communications, Inc. trademarks, including the mark "WHISTLE
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* COMMUNICATIONS" on advertising, endorsements, or otherwise except as
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* such appears in the above copyright notice or in the software.
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*
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* THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
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* REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
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* INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
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* WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
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* REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
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* SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
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* IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
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* RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
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* WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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* PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* Author: Archie Cobbs <archie@freebsd.org>
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*
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* $Whistle: ng_mppc.h,v 1.3 2000/02/12 01:17:22 archie Exp $
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* $FreeBSD$
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*/
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#ifndef _NETGRAPH_NG_MPPC_H_
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#define _NETGRAPH_NG_MPPC_H_
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/* Node type name and magic cookie */
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#define NG_MPPC_NODE_TYPE "mppc"
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#define NGM_MPPC_COOKIE 942886745
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/* Hook names */
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#define NG_MPPC_HOOK_COMP "comp" /* compression hook */
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#define NG_MPPC_HOOK_DECOMP "decomp" /* decompression hook */
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/* Length of MPPE key */
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#define MPPE_KEY_LEN 16
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/* Max expansion due to MPPC header and compression algorithm */
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#define MPPC_MAX_BLOWUP(n) ((n) * 9 / 8 + 26)
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/* MPPC/MPPE PPP negotiation bits */
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#define MPPC_BIT 0x00000001 /* mppc compression bits */
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#define MPPE_40 0x00000020 /* use 40 bit key */
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#define MPPE_56 0x00000080 /* use 56 bit key */
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#define MPPE_128 0x00000040 /* use 128 bit key */
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#define MPPE_BITS 0x000000e0 /* mppe encryption bits */
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#define MPPE_STATELESS 0x01000000 /* use stateless mode */
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#define MPPC_VALID_BITS 0x010000e1 /* possibly valid bits */
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/* Config struct (per-direction) */
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struct ng_mppc_config {
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u_char enable; /* enable */
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u_int32_t bits; /* config bits */
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u_char startkey[MPPE_KEY_LEN]; /* start key */
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};
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/* Netgraph commands */
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enum {
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NGM_MPPC_CONFIG_COMP = 1,
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NGM_MPPC_CONFIG_DECOMP,
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NGM_MPPC_RESETREQ, /* sent either way! */
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};
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#endif /* _NETGRAPH_NG_MPPC_H_ */
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