/*
 * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
#ifndef MPPE_H
#define MPPE_H

typedef struct mppe_state {
    int    us_unit;	/* Interface unit number */
    u_char us_id;		/* Current id */
    u_char us_allowed;
    int    us_type;
    char   *us_number;    /* Telefone Number */
} mppe_state;


extern struct protent mppe_protent;

#define MPPE_CONFOPTION 18
#define MPPC		0x01
#define MPPE_40BIT	0x20
#define MPPE_128BIT	0x40

#define PPP_MPPE	0x00FD
#define PPP_MPPC	PPP_MPPE

#define MPPE_BIT_A	0x80
#define MPPE_BIT_B	0x40
#define MPPE_BIT_C	0x20
#define MPPE_BIT_D	0x10
#define MPPE_BIT_FLUSHED MPPE_BIT_A
#define MPPE_BIT_ENCRYPTED MPPE_BIT_D
#define MPPE_CCOUNT	0x0FFF

#define MPPC_BIT_RESET	MPPE_BIT_A
#define MPPC_BIT_FLUSH	MPPE_BIT_B
#define MPPC_BIT_COMP	MPPC_BIT_C

#define MPPE_40_SALT0	0xD1
#define MPPE_40_SALT1	0x26
#define MPPE_40_SALT2	0x9E

#define MPPE_MINLEN 4

#define MPPE_REQ    1
#define MPPE_RESP   2
#define MPPE_ACK    3

#define CI_MPPE		18
#define CILEN_MPPE	6


int ppp_mppe_init(void);
int ppp_mppe_dispose(void);

#endif