1/*
2 * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23/*
24 * chap_ms.h - Challenge Handshake Authentication Protocol definitions.
25 *
26 * Copyright (c) 1995 Eric Rosenquist.  All rights reserved.
27 *
28 * Redistribution and use in source and binary forms, with or without
29 * modification, are permitted provided that the following conditions
30 * are met:
31 *
32 * 1. Redistributions of source code must retain the above copyright
33 *    notice, this list of conditions and the following disclaimer.
34 *
35 * 2. Redistributions in binary form must reproduce the above copyright
36 *    notice, this list of conditions and the following disclaimer in
37 *    the documentation and/or other materials provided with the
38 *    distribution.
39 *
40 * 3. The name(s) of the authors of this software must not be used to
41 *    endorse or promote products derived from this software without
42 *    prior written permission.
43 *
44 * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
45 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
46 * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
47 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
48 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
49 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
50 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
51 *
52 */
53
54#ifndef __CHAPMS_INCLUDE__
55
56/*
57 * Values for the code field.
58 */
59#define MS_CHAP2_CHANGE_PASSWORD	7
60
61
62#define MD4_SIGNATURE_SIZE	16	/* 16 bytes in a MD4 message digest */
63#define MAX_NT_PASSWORD		256	/* Max (Unicode) chars in an NT pass */
64
65#define MS_CHAP_RESPONSE_LEN	49	/* Response length for MS-CHAP */
66#define MS_CHAP2_RESPONSE_LEN	49	/* Response length for MS-CHAPv2 */
67#define MS_AUTH_RESPONSE_LENGTH	40	/* MS-CHAPv2 authenticator response, */
68					/* as ASCII */
69#define MS_CHAP2_CHANGE_PASSWORD_LEN	582	/* Change Password length for MS-CHAPv2 */
70
71/* E=eeeeeeeeee error codes for MS-CHAP failure messages. */
72#define MS_CHAP_ERROR_RESTRICTED_LOGON_HOURS	646
73#define MS_CHAP_ERROR_ACCT_DISABLED		647
74#define MS_CHAP_ERROR_PASSWD_EXPIRED		648
75#define MS_CHAP_ERROR_NO_DIALIN_PERMISSION	649
76#define MS_CHAP_ERROR_AUTHENTICATION_FAILURE	691
77#define MS_CHAP_ERROR_CHANGING_PASSWORD		709
78
79/*
80 * Use MS_CHAP_RESPONSE_LEN, rather than sizeof(MS_ChapResponse),
81 * in case this struct gets padded.
82 */
83typedef struct {
84    u_char LANManResp[24];
85    u_char NTResp[24];
86    u_char UseNT[1];		/* If 1, ignore the LANMan response field */
87} MS_ChapResponse;
88
89/*
90 * Use MS_CHAP2_RESPONSE_LEN, rather than sizeof(MS_Chap2Response),
91 * in case this struct gets padded.
92 */
93typedef struct {
94    u_char PeerChallenge[16];
95    u_char Reserved[8];		/* Must be zero */
96    u_char NTResp[24];
97    u_char Flags[1];		/* Must be zero */
98} MS_Chap2Response;
99
100#ifdef MPPE
101//#include <net/ppp-comp.h>	/* MPPE_MAX_KEY_LEN */
102#include <ppp_comp.h>
103extern u_char mppe_send_key[MPPE_MAX_KEY_LEN];
104extern u_char mppe_recv_key[MPPE_MAX_KEY_LEN];
105extern int mppe_keys_set;
106
107/* These values are the RADIUS attribute values--see RFC 2548. */
108#define MPPE_ENC_POL_ENC_ALLOWED 1
109#define MPPE_ENC_POL_ENC_REQUIRED 2
110#define MPPE_ENC_TYPES_RC4_40 2
111#define MPPE_ENC_TYPES_RC4_128 4
112
113/* used by plugins (using above values) */
114extern void set_mppe_enc_types(int, int);
115#endif
116
117/* Are we the authenticator or authenticatee?  For MS-CHAPv2 key derivation. */
118#define MS_CHAP2_AUTHENTICATEE 0
119#define MS_CHAP2_AUTHENTICATOR 1
120
121void ChapMS __P((u_char *, u_char *, int, MS_ChapResponse *));
122void ChapMS2 __P((u_char *, u_char *, char *, u_char *, int,
123		  MS_Chap2Response *, u_char[MS_AUTH_RESPONSE_LENGTH+1], int));
124#ifdef MPPE
125void mppe_set_keys __P((u_char *, u_char[MD4_SIGNATURE_SIZE]));
126#endif
127
128void chapms_init(void);
129#ifdef __APPLE__
130void chapms_reinit(void);
131#endif
132
133#define __CHAPMS_INCLUDE__
134#endif /* __CHAPMS_INCLUDE__ */
135