1184610Salfred/*- 2184610Salfred * Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org> 3184610Salfred * based on work by Toshiharu OHNO <tony-o@iij.ad.jp> 4184610Salfred * Internet Initiative Japan, Inc (IIJ) 5184610Salfred * All rights reserved. 6184610Salfred * 7184610Salfred * Redistribution and use in source and binary forms, with or without 8184610Salfred * modification, are permitted provided that the following conditions 9184610Salfred * are met: 10184610Salfred * 1. Redistributions of source code must retain the above copyright 11184610Salfred * notice, this list of conditions and the following disclaimer. 12184610Salfred * 2. Redistributions in binary form must reproduce the above copyright 13184610Salfred * notice, this list of conditions and the following disclaimer in the 14184610Salfred * documentation and/or other materials provided with the distribution. 15184610Salfred * 16184610Salfred * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17184610Salfred * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18184610Salfred * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19184610Salfred * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20184610Salfred * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21184610Salfred * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22184610Salfred * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23184610Salfred * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24184610Salfred * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25184610Salfred * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26184610Salfred * SUCH DAMAGE. 27184610Salfred * 28184610Salfred * $FreeBSD$ 29184610Salfred */ 30184610Salfred 31184610Salfredstruct mbuf; 32184610Salfredstruct physical; 33184610Salfred 34227843Smarius#define CHAP_CHALLENGE 1 35227843Smarius#define CHAP_RESPONSE 2 36227843Smarius#define CHAP_SUCCESS 3 37184610Salfred#define CHAP_FAILURE 4 38184610Salfred 39184610Salfredstruct chap { 40184610Salfred struct fdescriptor desc; 41184610Salfred struct { 42184610Salfred pid_t pid; 43184610Salfred int fd; 44184610Salfred struct { 45184610Salfred char ptr[AUTHLEN * 2 + 3]; /* Allow for \r\n at the end (- NUL) */ 46184610Salfred int len; 47184610Salfred } buf; 48184610Salfred } child; 49184610Salfred struct authinfo auth; 50184610Salfred struct { 51194677Sthompsa u_char local[CHAPCHALLENGELEN + AUTHLEN]; /* I invented this one */ 52194677Sthompsa u_char peer[CHAPCHALLENGELEN + AUTHLEN]; /* Peer gave us this one */ 53194677Sthompsa } challenge; 54194677Sthompsa#ifndef NODES 55194677Sthompsa unsigned NTRespSent : 1; /* Our last response */ 56194677Sthompsa int peertries; 57194677Sthompsa u_char authresponse[CHAPAUTHRESPONSELEN]; /* CHAP 81 response */ 58194677Sthompsa#endif 59194677Sthompsa}; 60194677Sthompsa 61194677Sthompsa#define descriptor2chap(d) \ 62194677Sthompsa ((d)->type == CHAP_DESCRIPTOR ? (struct chap *)(d) : NULL) 63194677Sthompsa#define auth2chap(a) \ 64194677Sthompsa ((struct chap *)((char *)a - (uintptr_t)&((struct chap *)0)->auth)) 65194677Sthompsa 66194677Sthompsastruct MSCHAPv2_resp { /* rfc2759 */ 67194677Sthompsa char PeerChallenge[16]; 68194677Sthompsa char Reserved[8]; 69194677Sthompsa char NTResponse[24]; 70188746Sthompsa char Flags; 71188942Sthompsa}; 72194677Sthompsa 73194677Sthompsaextern void chap_Init(struct chap *, struct physical *); 74246421Shselaskyextern void chap_ReInit(struct chap *); 75242438Shselaskyextern struct mbuf *chap_Input(struct bundle *, struct link *, struct mbuf *); 76249796Shselasky