xref: /dflybsd-src/usr.sbin/ppp/chap.h (revision 86d7f5d305c6adaa56ff4582ece9859d73106103)
186d7f5d3SJohn Marino /*-
286d7f5d3SJohn Marino  * Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org>
386d7f5d3SJohn Marino  *          based on work by Toshiharu OHNO <tony-o@iij.ad.jp>
486d7f5d3SJohn Marino  *                           Internet Initiative Japan, Inc (IIJ)
586d7f5d3SJohn Marino  * All rights reserved.
686d7f5d3SJohn Marino  *
786d7f5d3SJohn Marino  * Redistribution and use in source and binary forms, with or without
886d7f5d3SJohn Marino  * modification, are permitted provided that the following conditions
986d7f5d3SJohn Marino  * are met:
1086d7f5d3SJohn Marino  * 1. Redistributions of source code must retain the above copyright
1186d7f5d3SJohn Marino  *    notice, this list of conditions and the following disclaimer.
1286d7f5d3SJohn Marino  * 2. Redistributions in binary form must reproduce the above copyright
1386d7f5d3SJohn Marino  *    notice, this list of conditions and the following disclaimer in the
1486d7f5d3SJohn Marino  *    documentation and/or other materials provided with the distribution.
1586d7f5d3SJohn Marino  *
1686d7f5d3SJohn Marino  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1786d7f5d3SJohn Marino  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1886d7f5d3SJohn Marino  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1986d7f5d3SJohn Marino  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
2086d7f5d3SJohn Marino  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2186d7f5d3SJohn Marino  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2286d7f5d3SJohn Marino  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2386d7f5d3SJohn Marino  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2486d7f5d3SJohn Marino  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2586d7f5d3SJohn Marino  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2686d7f5d3SJohn Marino  * SUCH DAMAGE.
2786d7f5d3SJohn Marino  *
2886d7f5d3SJohn Marino  * $FreeBSD: src/usr.sbin/ppp/chap.h,v 1.17.2.4 2002/09/01 02:12:23 brian Exp $
2986d7f5d3SJohn Marino  */
3086d7f5d3SJohn Marino 
3186d7f5d3SJohn Marino struct mbuf;
3286d7f5d3SJohn Marino struct physical;
3386d7f5d3SJohn Marino 
3486d7f5d3SJohn Marino #define	CHAP_CHALLENGE	1
3586d7f5d3SJohn Marino #define	CHAP_RESPONSE	2
3686d7f5d3SJohn Marino #define	CHAP_SUCCESS	3
3786d7f5d3SJohn Marino #define	CHAP_FAILURE	4
3886d7f5d3SJohn Marino 
3986d7f5d3SJohn Marino struct chap {
4086d7f5d3SJohn Marino   struct fdescriptor desc;
4186d7f5d3SJohn Marino   struct {
4286d7f5d3SJohn Marino     pid_t pid;
4386d7f5d3SJohn Marino     int fd;
4486d7f5d3SJohn Marino     struct {
4586d7f5d3SJohn Marino       char ptr[AUTHLEN * 2 + 3];	/* Allow for \r\n at the end (- NUL) */
4686d7f5d3SJohn Marino       int len;
4786d7f5d3SJohn Marino     } buf;
4886d7f5d3SJohn Marino   } child;
4986d7f5d3SJohn Marino   struct authinfo auth;
5086d7f5d3SJohn Marino   struct {
5186d7f5d3SJohn Marino     u_char local[CHAPCHALLENGELEN + AUTHLEN];	/* I invented this one */
5286d7f5d3SJohn Marino     u_char peer[CHAPCHALLENGELEN + AUTHLEN];	/* Peer gave us this one */
5386d7f5d3SJohn Marino   } challenge;
5486d7f5d3SJohn Marino #ifndef NODES
5586d7f5d3SJohn Marino   unsigned NTRespSent : 1;		/* Our last response */
5686d7f5d3SJohn Marino   int peertries;
5786d7f5d3SJohn Marino   u_char authresponse[CHAPAUTHRESPONSELEN];	/* CHAP 81 response */
5886d7f5d3SJohn Marino #endif
5986d7f5d3SJohn Marino };
6086d7f5d3SJohn Marino 
6186d7f5d3SJohn Marino #define descriptor2chap(d) \
6286d7f5d3SJohn Marino   ((d)->type == CHAP_DESCRIPTOR ? (struct chap *)(d) : NULL)
6386d7f5d3SJohn Marino #define auth2chap(a) \
6486d7f5d3SJohn Marino   ((struct chap *)((char *)a - (uintptr_t)&((struct chap *)0)->auth))
6586d7f5d3SJohn Marino 
6686d7f5d3SJohn Marino struct MSCHAPv2_resp {		/* rfc2759 */
6786d7f5d3SJohn Marino   char PeerChallenge[16];
6886d7f5d3SJohn Marino   char Reserved[8];
6986d7f5d3SJohn Marino   char NTResponse[24];
7086d7f5d3SJohn Marino   char Flags;
7186d7f5d3SJohn Marino };
7286d7f5d3SJohn Marino 
7386d7f5d3SJohn Marino extern void chap_Init(struct chap *, struct physical *);
7486d7f5d3SJohn Marino extern void chap_ReInit(struct chap *);
7586d7f5d3SJohn Marino extern struct mbuf *chap_Input(struct bundle *, struct link *, struct mbuf *);
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