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 *); 76