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