110 lines
3.8 KiB
C
110 lines
3.8 KiB
C
/*
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* chap_ms.h - Challenge Handshake Authentication Protocol definitions.
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*
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* Copyright (c) 1995 Eric Rosenquist. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. The name(s) of the authors of this software must not be used to
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* endorse or promote products derived from this software without
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* prior written permission.
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*
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* THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
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* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
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* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* $Id: chap_ms.h,v 1.13 2004/11/15 22:13:26 paulus Exp $
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*/
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#ifndef __CHAPMS_INCLUDE__
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#define MD4_SIGNATURE_SIZE 16 /* 16 bytes in a MD4 message digest */
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#define MAX_NT_PASSWORD 256 /* Max (Unicode) chars in an NT pass */
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#define MS_CHAP_RESPONSE_LEN 49 /* Response length for MS-CHAP */
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#define MS_CHAP2_RESPONSE_LEN 49 /* Response length for MS-CHAPv2 */
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#define MS_AUTH_RESPONSE_LENGTH 40 /* MS-CHAPv2 authenticator response, */
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/* as ASCII */
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/* E=eeeeeeeeee error codes for MS-CHAP failure messages. */
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#define MS_CHAP_ERROR_RESTRICTED_LOGON_HOURS 646
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#define MS_CHAP_ERROR_ACCT_DISABLED 647
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#define MS_CHAP_ERROR_PASSWD_EXPIRED 648
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#define MS_CHAP_ERROR_NO_DIALIN_PERMISSION 649
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#define MS_CHAP_ERROR_AUTHENTICATION_FAILURE 691
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#define MS_CHAP_ERROR_CHANGING_PASSWORD 709
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/*
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* Offsets within the response field for MS-CHAP
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*/
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#define MS_CHAP_LANMANRESP 0
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#define MS_CHAP_LANMANRESP_LEN 24
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#define MS_CHAP_NTRESP 24
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#define MS_CHAP_NTRESP_LEN 24
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#define MS_CHAP_USENT 48
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/*
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* Offsets within the response field for MS-CHAP2
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*/
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#define MS_CHAP2_PEER_CHALLENGE 0
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#define MS_CHAP2_PEER_CHAL_LEN 16
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#define MS_CHAP2_RESERVED_LEN 8
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#define MS_CHAP2_NTRESP 24
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#define MS_CHAP2_NTRESP_LEN 24
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#define MS_CHAP2_FLAGS 48
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#ifdef MPPE
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#include "mppe.h" /* MPPE_MAX_KEY_LEN */
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extern u_char mppe_send_key[MPPE_MAX_KEY_LEN];
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extern u_char mppe_recv_key[MPPE_MAX_KEY_LEN];
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extern int mppe_keys_set;
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/* These values are the RADIUS attribute values--see RFC 2548. */
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#define MPPE_ENC_POL_ENC_ALLOWED 1
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#define MPPE_ENC_POL_ENC_REQUIRED 2
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#define MPPE_ENC_TYPES_RC4_40 2
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#define MPPE_ENC_TYPES_RC4_128 4
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/* used by plugins (using above values) */
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extern void set_mppe_enc_types(int, int);
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#endif
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/* Are we the authenticator or authenticatee? For MS-CHAPv2 key derivation. */
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#define MS_CHAP2_AUTHENTICATEE 0
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#define MS_CHAP2_AUTHENTICATOR 1
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void ChapMS __P((u_char *, char *, int, u_char *));
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void ChapMS2 __P((u_char *, u_char *, char *, char *, int,
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u_char *, u_char[MS_AUTH_RESPONSE_LENGTH+1], int));
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#ifdef MPPE
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void mppe_set_keys __P((u_char *, u_char[MD4_SIGNATURE_SIZE]));
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void mppe_set_keys2(u_char PasswordHashHash[MD4_SIGNATURE_SIZE],
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u_char NTResponse[24], int IsServer);
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#endif
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void ChallengeHash __P((u_char[16], u_char *, char *, u_char[8]));
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void GenerateAuthenticatorResponse(u_char PasswordHashHash[MD4_SIGNATURE_SIZE],
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u_char NTResponse[24], u_char PeerChallenge[16],
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u_char *rchallenge, char *username,
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u_char authResponse[MS_AUTH_RESPONSE_LENGTH+1]);
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void chapms_init(void);
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#define __CHAPMS_INCLUDE__
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#endif /* __CHAPMS_INCLUDE__ */
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