1/*
2 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
7 * Reserved.  This file contains Original Code and/or Modifications of
8 * Original Code as defined in and that are subject to the Apple Public
9 * Source License Version 1.1 (the "License").  You may not use this file
10 * except in compliance with the License.  Please obtain a copy of the
11 * License at http://www.apple.com/publicsource and read it before using
12 * this file.
13 *
14 * The Original Code and all software distributed under the License are
15 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
19 * License for the specific language governing rights and limitations
20 * under the License.
21 *
22 * @APPLE_LICENSE_HEADER_END@
23 */
24/*
25 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
26 * unrestricted use provided that this legend is included on all tape
27 * media and as a part of the software program in whole or part.  Users
28 * may copy or modify Sun RPC without charge, but are not authorized
29 * to license or distribute it to anyone else except as part of a product or
30 * program developed by the user.
31 *
32 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
33 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
34 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
35 *
36 * Sun RPC is provided with no support and without any obligation on the
37 * part of Sun Microsystems, Inc. to assist in its use, correction,
38 * modification or enhancement.
39 *
40 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
41 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
42 * OR ANY PART THEREOF.
43 *
44 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
45 * or profits or other special, indirect and consequential damages, even if
46 * Sun has been advised of the possibility of such damages.
47 *
48 * Sun Microsystems, Inc.
49 * 2550 Garcia Avenue
50 * Mountain View, California  94043
51 *
52 *	from: @(#)auth.h 1.17 88/02/08 SMI
53 *	from: @(#)auth.h	2.3 88/08/07 4.0 RPCSRC
54 *	$Id: auth.h,v 1.4 2004/11/25 19:41:19 emoy Exp $
55 */
56
57/*
58 * auth.h, Authentication interface.
59 *
60 * Copyright (C) 1984, Sun Microsystems, Inc.
61 *
62 * The data structures are completely opaque to the client.  The client
63 * is required to pass a AUTH * to routines that create rpc
64 * "sessions".
65 */
66
67#ifndef _RPC_AUTH_H
68#define _RPC_AUTH_H
69#include <sys/cdefs.h>
70
71#define MAX_AUTH_BYTES	400
72#define MAXNETNAMELEN	255	/* maximum length of network user's name */
73
74/*
75 * Status returned from authentication check
76 */
77enum auth_stat {
78	AUTH_OK=0,
79	/*
80	 * failed at remote end
81	 */
82	AUTH_BADCRED=1,			/* bogus credentials (seal broken) */
83	AUTH_REJECTEDCRED=2,		/* client should begin new session */
84	AUTH_BADVERF=3,			/* bogus verifier (seal broken) */
85	AUTH_REJECTEDVERF=4,		/* verifier expired or was replayed */
86	AUTH_TOOWEAK=5,			/* rejected due to security reasons */
87	/*
88	 * failed locally
89	*/
90	AUTH_INVALIDRESP=6,		/* bogus response verifier */
91	AUTH_FAILED=7			/* some unknown reason */
92};
93
94/* 32-bit unsigned integers */
95#ifdef __LP64__
96typedef unsigned int u_int32;
97#else
98typedef unsigned long u_int32;
99#endif
100
101union des_block {
102	struct {
103		u_int32 high;
104		u_int32 low;
105	} key;
106	char c[8];
107};
108typedef union des_block des_block;
109__BEGIN_DECLS
110extern bool_t xdr_des_block __P((XDR *, des_block *));
111__END_DECLS
112
113/*
114 * Authentication info.  Opaque to client.
115 */
116struct opaque_auth {
117	enum_t	oa_flavor;		/* flavor of auth */
118	caddr_t	oa_base;		/* address of more auth stuff */
119	unsigned int	oa_length;		/* not to exceed MAX_AUTH_BYTES */
120};
121
122
123/*
124 * Auth handle, interface to client side authenticators.
125 */
126typedef struct {
127	struct	opaque_auth	ah_cred;
128	struct	opaque_auth	ah_verf;
129	union	des_block	ah_key;
130	struct auth_ops {
131#ifdef __cplusplus
132		void	(*ah_nextverf)(...);
133		int	(*ah_marshal)(...);	/* nextverf & serialize */
134		int	(*ah_validate)(...);	/* validate varifier */
135		int	(*ah_refresh)(...);	/* refresh credentials */
136		void	(*ah_destroy)(...);	/* destroy this structure */
137#else
138	/* DO NOT REMOVE THE COMMENTED OUT ...: fixincludes needs to see them */
139		void	(*ah_nextverf)(/*...*/);
140		int	(*ah_marshal)(/*...*/);	/* nextverf & serialize */
141		int	(*ah_validate)(/*...*/);	/* validate varifier */
142		int	(*ah_refresh)(/*...*/);	/* refresh credentials */
143		void	(*ah_destroy)(/*...*/);	/* destroy this structure */
144#endif
145	} *ah_ops;
146	caddr_t ah_private;
147} AUTH;
148
149
150/*
151 * Authentication ops.
152 * The ops and the auth handle provide the interface to the authenticators.
153 *
154 * AUTH	*auth;
155 * XDR	*xdrs;
156 * struct opaque_auth verf;
157 */
158#define AUTH_NEXTVERF(auth)		\
159		((*((auth)->ah_ops->ah_nextverf))(auth))
160#define auth_nextverf(auth)		\
161		((*((auth)->ah_ops->ah_nextverf))(auth))
162
163#define AUTH_MARSHALL(auth, xdrs)	\
164		((*((auth)->ah_ops->ah_marshal))(auth, xdrs))
165#define auth_marshall(auth, xdrs)	\
166		((*((auth)->ah_ops->ah_marshal))(auth, xdrs))
167
168#define AUTH_VALIDATE(auth, verfp)	\
169		((*((auth)->ah_ops->ah_validate))((auth), verfp))
170#define auth_validate(auth, verfp)	\
171		((*((auth)->ah_ops->ah_validate))((auth), verfp))
172
173#define AUTH_REFRESH(auth)		\
174		((*((auth)->ah_ops->ah_refresh))(auth))
175#define auth_refresh(auth)		\
176		((*((auth)->ah_ops->ah_refresh))(auth))
177
178#define AUTH_DESTROY(auth)		\
179		((*((auth)->ah_ops->ah_destroy))(auth))
180#define auth_destroy(auth)		\
181		((*((auth)->ah_ops->ah_destroy))(auth))
182
183
184extern struct opaque_auth _null_auth;
185
186
187/*
188 * These are the various implementations of client side authenticators.
189 */
190
191/*
192 * Unix style authentication
193 * AUTH *authunix_create(machname, uid, gid, len, aup_gids)
194 *	char *machname;
195 *	int uid;
196 *	int gid;
197 *	int len;
198 *	int *aup_gids;
199 */
200__BEGIN_DECLS
201extern AUTH *authunix_create		__P((char *, int, int, int, int *));
202extern AUTH *authunix_create_default	__P((void));
203extern AUTH *authnone_create		__P((void));
204extern AUTH *authdes_create		__P((char *, unsigned int,
205					     struct sockaddr_in *,
206					     des_block *));
207__END_DECLS
208
209#define AUTH_NONE	0		/* no authentication */
210#define	AUTH_NULL	0		/* backward compatibility */
211#define	AUTH_UNIX	1		/* unix style (uid, gids) */
212#define	AUTH_SHORT	2		/* short hand unix style */
213#define AUTH_DES	3		/* des style (encrypted timestamps) */
214
215#endif /* !_RPC_AUTH_H */
216