1/* $NetBSD: chap_ms.h,v 1.1.1.1 2005/02/20 10:28:42 cube Exp $ */ 2 3/* 4 * chap_ms.h - Challenge Handshake Authentication Protocol definitions. 5 * 6 * Copyright (c) 1995 Eric Rosenquist. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in 17 * the documentation and/or other materials provided with the 18 * distribution. 19 * 20 * 3. The name(s) of the authors of this software must not be used to 21 * endorse or promote products derived from this software without 22 * prior written permission. 23 * 24 * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO 25 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 26 * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY 27 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 28 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN 29 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 30 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 31 * 32 * Id: chap_ms.h,v 1.13 2004/11/15 22:13:26 paulus Exp 33 */ 34 35#ifndef __CHAPMS_INCLUDE__ 36 37#define MD4_SIGNATURE_SIZE 16 /* 16 bytes in a MD4 message digest */ 38#define MAX_NT_PASSWORD 256 /* Max (Unicode) chars in an NT pass */ 39 40#define MS_CHAP_RESPONSE_LEN 49 /* Response length for MS-CHAP */ 41#define MS_CHAP2_RESPONSE_LEN 49 /* Response length for MS-CHAPv2 */ 42#define MS_AUTH_RESPONSE_LENGTH 40 /* MS-CHAPv2 authenticator response, */ 43 /* as ASCII */ 44 45/* E=eeeeeeeeee error codes for MS-CHAP failure messages. */ 46#define MS_CHAP_ERROR_RESTRICTED_LOGON_HOURS 646 47#define MS_CHAP_ERROR_ACCT_DISABLED 647 48#define MS_CHAP_ERROR_PASSWD_EXPIRED 648 49#define MS_CHAP_ERROR_NO_DIALIN_PERMISSION 649 50#define MS_CHAP_ERROR_AUTHENTICATION_FAILURE 691 51#define MS_CHAP_ERROR_CHANGING_PASSWORD 709 52 53/* 54 * Offsets within the response field for MS-CHAP 55 */ 56#define MS_CHAP_LANMANRESP 0 57#define MS_CHAP_LANMANRESP_LEN 24 58#define MS_CHAP_NTRESP 24 59#define MS_CHAP_NTRESP_LEN 24 60#define MS_CHAP_USENT 48 61 62/* 63 * Offsets within the response field for MS-CHAP2 64 */ 65#define MS_CHAP2_PEER_CHALLENGE 0 66#define MS_CHAP2_PEER_CHAL_LEN 16 67#define MS_CHAP2_RESERVED_LEN 8 68#define MS_CHAP2_NTRESP 24 69#define MS_CHAP2_NTRESP_LEN 24 70#define MS_CHAP2_FLAGS 48 71 72#ifdef MPPE 73#include <net/ppp-comp.h> /* MPPE_MAX_KEY_LEN */ 74extern u_char mppe_send_key[MPPE_MAX_KEY_LEN]; 75extern u_char mppe_recv_key[MPPE_MAX_KEY_LEN]; 76extern int mppe_keys_set; 77 78/* These values are the RADIUS attribute values--see RFC 2548. */ 79#define MPPE_ENC_POL_ENC_ALLOWED 1 80#define MPPE_ENC_POL_ENC_REQUIRED 2 81#define MPPE_ENC_TYPES_RC4_40 2 82#define MPPE_ENC_TYPES_RC4_128 4 83 84/* used by plugins (using above values) */ 85extern void set_mppe_enc_types(int, int); 86#endif 87 88/* Are we the authenticator or authenticatee? For MS-CHAPv2 key derivation. */ 89#define MS_CHAP2_AUTHENTICATEE 0 90#define MS_CHAP2_AUTHENTICATOR 1 91 92void ChapMS __P((u_char *, char *, int, u_char *)); 93void ChapMS2 __P((u_char *, u_char *, char *, char *, int, 94 u_char *, u_char[MS_AUTH_RESPONSE_LENGTH+1], int)); 95#ifdef MPPE 96void mppe_set_keys __P((u_char *, u_char[MD4_SIGNATURE_SIZE])); 97void mppe_set_keys2(u_char PasswordHashHash[MD4_SIGNATURE_SIZE], 98 u_char NTResponse[24], int IsServer); 99#endif 100 101void ChallengeHash __P((u_char[16], u_char *, char *, u_char[8])); 102 103void GenerateAuthenticatorResponse(u_char PasswordHashHash[MD4_SIGNATURE_SIZE], 104 u_char NTResponse[24], u_char PeerChallenge[16], 105 u_char *rchallenge, char *username, 106 u_char authResponse[MS_AUTH_RESPONSE_LENGTH+1]); 107 108void chapms_init(void); 109 110#define __CHAPMS_INCLUDE__ 111#endif /* __CHAPMS_INCLUDE__ */ 112