chap.h revision 173710 
1/*-
2 * Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org>
3 *          based on work by Toshiharu OHNO <tony-o@iij.ad.jp>
4 *                           Internet Initiative Japan, Inc (IIJ)
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: head/usr.sbin/ppp/chap.h 173710 2007-11-17 23:14:06Z jb $
29 */
30
31struct mbuf;
32struct physical;
33
34#define	CHAP_CHALLENGE	1
35#define	CHAP_RESPONSE	2
36#define	CHAP_SUCCESS	3
37#define	CHAP_FAILURE	4
38
39struct chap {
40  struct fdescriptor desc;
41  struct {
42    pid_t pid;
43    int fd;
44    struct {
45      char ptr[AUTHLEN * 2 + 3];	/* Allow for \r\n at the end (- NUL) */
46      int len;
47    } buf;
48  } child;
49  struct authinfo auth;
50  struct {
51    u_char local[CHAPCHALLENGELEN + AUTHLEN];	/* I invented this one */
52    u_char peer[CHAPCHALLENGELEN + AUTHLEN];	/* Peer gave us this one */
53  } challenge;
54#ifndef NODES
55  unsigned NTRespSent : 1;		/* Our last response */
56  int peertries;
57  u_char authresponse[CHAPAUTHRESPONSELEN];	/* CHAP 81 response */
58#endif
59};
60
61#define descriptor2chap(d) \
62  ((d)->type == CHAP_DESCRIPTOR ? (struct chap *)(d) : NULL)
63#define auth2chap(a) \
64  ((struct chap *)((char *)a - (uintptr_t)&((struct chap *)0)->auth))
65
66struct MSCHAPv2_resp {		/* rfc2759 */
67  char PeerChallenge[16];
68  char Reserved[8];
69  char NTResponse[24];
70  char Flags;
71};
72
73extern void chap_Init(struct chap *, struct physical *);
74extern void chap_ReInit(struct chap *);
75extern struct mbuf *chap_Input(struct bundle *, struct link *, struct mbuf *);
76