/*
- * chap.h - Challenge Handshake Authentication Protocol definitions.
+ * chap_ms.h - Challenge Handshake Authentication Protocol definitions.
*
- * Copyright (c) 1995 Eric Rosenquist, Strata Software Limited.
- * http://www.strataware.com/
+ * Copyright (c) 1995 Eric Rosenquist. All rights reserved.
*
- * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
*
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by Eric Rosenquist. The name of the author may not be used to
- * endorse or promote products derived from this software without
- * specific prior written permission.
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
*
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
*
- * $Id: chap_ms.h,v 1.1 1996/05/28 00:42:31 paulus Exp $
+ * 3. The name(s) of the authors of this software must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission.
+ *
+ * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
+ * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+ * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * $Id: chap_ms.h,v 1.13 2004/11/15 22:13:26 paulus Exp $
*/
-#ifndef __CHAPMS_INCLUDE__
+#ifndef PPP_CHAPMS_H
+#define PPP_CHAPMS_H
+
+#include "pppdconf.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define MAX_NT_PASSWORD 256 /* Max (Unicode) chars in an NT pass */
+
+#define MS_CHAP_RESPONSE_LEN 49 /* Response length for MS-CHAP */
+#define MS_CHAP2_RESPONSE_LEN 49 /* Response length for MS-CHAPv2 */
+#define MS_AUTH_RESPONSE_LENGTH 40 /* MS-CHAPv2 authenticator response, */
+#define MS_AUTH_NTRESP_LEN 24 /* Length of NT-response field */
+ /* as ASCII */
+
+/* E=eeeeeeeeee error codes for MS-CHAP failure messages. */
+#define MS_CHAP_ERROR_RESTRICTED_LOGON_HOURS 646
+#define MS_CHAP_ERROR_ACCT_DISABLED 647
+#define MS_CHAP_ERROR_PASSWD_EXPIRED 648
+#define MS_CHAP_ERROR_NO_DIALIN_PERMISSION 649
+#define MS_CHAP_ERROR_AUTHENTICATION_FAILURE 691
+#define MS_CHAP_ERROR_CHANGING_PASSWORD 709
+
+/*
+ * Offsets within the response field for MS-CHAP
+ */
+#define MS_CHAP_LANMANRESP 0
+#define MS_CHAP_LANMANRESP_LEN 24
+#define MS_CHAP_NTRESP 24
+#define MS_CHAP_NTRESP_LEN 24
+#define MS_CHAP_USENT 48
+
+/*
+ * Offsets within the response field for MS-CHAP2
+ */
+#define MS_CHAP2_PEER_CHALLENGE 0
+#define MS_CHAP2_PEER_CHAL_LEN 16
+#define MS_CHAP2_RESERVED_LEN 8
+#define MS_CHAP2_NTRESP 24
+#define MS_CHAP2_NTRESP_LEN 24
+#define MS_CHAP2_FLAGS 48
+
+/* Are we the authenticator or authenticatee? For MS-CHAPv2 key derivation. */
+#define MS_CHAP2_AUTHENTICATEE 0
+#define MS_CHAP2_AUTHENTICATOR 1
+
+void ChapMS (u_char *, char *, int, u_char *);
+void ChapMS2 (u_char *, u_char *, char *, char *, int,
+ u_char *, u_char[MS_AUTH_RESPONSE_LENGTH+1], int);
+
+void ChallengeHash (u_char[16], u_char *, char *, u_char[8]);
+
+
+/**
+ * PasswordHashHash - 16 bytes representing the NT Password Hash Hash
+ * NTResponse - 24 bytes represending the NTResponse parameter
+ * PeerChallenge - 16 bytes challange for peer
+ * rchallenge - 16 bytes challenge provided by peer
+ * authResponse - 24 + 1 byte to store the authenticator response
+ */
+void GenerateAuthenticatorResponse(unsigned char *PasswordHashHash,
+ unsigned char *NTResponse, unsigned char *PeerChallenge,
+ unsigned char *rchallenge, char *username,
+ unsigned char *authResponse);
-#define MAX_NT_PASSWORD 256 /* Maximum number of (Unicode) chars in an NT password */
+void chapms_init(void);
-void ChapMS __P((chap_state *, char *, int, char *, int));
+#ifdef __cplusplus
+}
+#endif
-#define __CHAPMS_INCLUDE__
-#endif /* __CHAPMS_INCLUDE__ */
+#endif /* PPP_CHAPMS_H */
projects / ppp.git / blobdiff