2 * chap_ms.h - Challenge Handshake Authentication Protocol definitions.
4 * Copyright (c) 1995 Eric Rosenquist, Strata Software Limited.
5 * http://www.strataware.com/
9 * Redistribution and use in source and binary forms are permitted
10 * provided that the above copyright notice and this paragraph are
11 * duplicated in all such forms and that any documentation,
12 * advertising materials, and other materials related to such
13 * distribution and use acknowledge that the software was developed
14 * by Eric Rosenquist. The name of the author may not be used to
15 * endorse or promote products derived from this software without
16 * specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
20 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
22 * $Id: chap_ms.h,v 1.6 2002/04/02 13:54:59 dfs Exp $
25 #ifndef __CHAPMS_INCLUDE__
27 #define MD4_SIGNATURE_SIZE 16 /* 16 bytes in a MD4 message digest */
28 #define MAX_NT_PASSWORD 256 /* Max (Unicode) chars in an NT pass */
30 #define MS_CHAP_RESPONSE_LEN 49 /* Response length for MS-CHAP */
31 #define MS_CHAP2_RESPONSE_LEN 49 /* Response length for MS-CHAPv2 */
33 /* E=eeeeeeeeee error codes for MS-CHAP failure messages. */
34 #define MS_CHAP_ERROR_RESTRICTED_LOGON_HOURS 646
35 #define MS_CHAP_ERROR_ACCT_DISABLED 647
36 #define MS_CHAP_ERROR_PASSWD_EXPIRED 648
37 #define MS_CHAP_ERROR_NO_DIALIN_PERMISSION 649
38 #define MS_CHAP_ERROR_AUTHENTICATION_FAILURE 691
39 #define MS_CHAP_ERROR_CHANGING_PASSWORD 709
42 * Use MS_CHAP_RESPONSE_LEN, rather than sizeof(MS_ChapResponse),
43 * in case this struct gets padded.
46 u_char LANManResp[24];
48 u_char UseNT[1]; /* If 1, ignore the LANMan response field */
52 * Use MS_CHAP2_RESPONSE_LEN, rather than sizeof(MS_Chap2Response),
53 * in case this struct gets padded.
56 u_char PeerChallenge[16];
57 u_char Reserved[8]; /* Must be zero */
59 u_char Flags[1]; /* Must be zero */
63 #include <net/ppp-comp.h> /* MPPE_MAX_KEY_LEN */
64 extern u_char mppe_send_key[MPPE_MAX_KEY_LEN];
65 extern u_char mppe_recv_key[MPPE_MAX_KEY_LEN];
68 /* Are we the authenticator or authenticatee? For MS-CHAPv2 key derivation. */
69 #define MS_CHAP2_AUTHENTICATEE 0
70 #define MS_CHAP2_AUTHENTICATOR 1
72 #include "chap.h" /* chap_state, et al */
73 void ChapMS __P((chap_state *, u_char *, char *, int, MS_ChapResponse *));
74 void ChapMS2 __P((chap_state *, u_char *, u_char *, char *, char *, int,
75 MS_Chap2Response *, u_char[MS_AUTH_RESPONSE_LENGTH+1], int));
77 void mppe_set_keys __P((u_char *, u_char[MD4_SIGNATURE_SIZE]));
80 #define __CHAPMS_INCLUDE__
81 #endif /* __CHAPMS_INCLUDE__ */