xref: /titanic_51/usr/src/cmd/cmd-inet/usr.bin/telnet/encrypt.h (revision dd51520e127b452179a2ce4ea3bd8dee949f9afe)
1 /*
2  * Copyright 2002 Sun Microsystems, Inc.  All rights reserved.
3  * Use is subject to license terms.
4  */
5 
6 /*
7  * Copyright (c) 1991, 1993
8  *	The Regents of the University of California.  All rights reserved.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *	This product includes software developed by the University of
21  *	California, Berkeley and its contributors.
22  * 4. Neither the name of the University nor the names of its contributors
23  *    may be used to endorse or promote products derived from this software
24  *    without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36  * SUCH DAMAGE.
37  *
38  *	@(#)encrypt.h	8.1 (Berkeley) 6/4/93
39  */
40 
41 /*
42  * Copyright (C) 1990 by the Massachusetts Institute of Technology
43  *
44  * Export of this software from the United States of America may
45  * require a specific license from the United States Government.
46  * It is the responsibility of any person or organization contemplating
47  * export to obtain such a license before exporting.
48  *
49  * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
50  * distribute this software and its documentation for any purpose and
51  * without fee is hereby granted, provided that the above copyright
52  * notice appear in all copies and that both that copyright notice and
53  * this permission notice appear in supporting documentation, and that
54  * the name of M.I.T. not be used in advertising or publicity pertaining
55  * to distribution of the software without specific, written prior
56  * permission.  Furthermore if you modify this software you must label
57  * your software as modified software and not distribute it in such a
58  * fashion that it might be confused with the original M.I.T. software.
59  * M.I.T. makes no representations about the suitability of
60  * this software for any purpose.  It is provided "as is" without express
61  * or implied warranty.
62  */
63 
64 #ifndef	_ENCRYPT_H
65 #define	_ENCRYPT_H
66 
67 #pragma ident	"%Z%%M%	%I%	%E% SMI"
68 
69 #ifdef	__cplusplus
70 extern "C" {
71 #endif
72 
73 #define	ENCR_LBUF_BUFSIZ	32	  /* short temporary buffer */
74 #define	SAMEKEY(k1, k2)	(!memcmp((void *)k1, (void *)k2, sizeof (Block))
75 
76 #include <arpa/telnet.h>
77 
78 typedef struct {
79 	char	*name;
80 	int	type;
81 	void	(*output)(unsigned char *, int);
82 	int	(*input)(int);
83 	void	(*init)();
84 	int	(*start)(int);
85 	int	(*is)(unsigned char *, int);
86 	int	(*reply)(unsigned char *, int);
87 	void	(*session)(Session_Key *);
88 	int	(*keyid)(int, unsigned char *, int *);
89 	void	(*printsub)(unsigned char *, int, unsigned char *, int);
90 } Encryptions;
91 
92 #define	SK_DES		1	/* Matched Kerberos v5 ENCTYPE_DES */
93 
94 void	encrypt_support(uchar_t *, int);
95 void	encrypt_init(char *);
96 void	encrypt_send_supprt(void);
97 void	encrypt_auto(int);
98 void	decrypt_auto(int);
99 void	encrypt_is(unsigned char *, int);
100 void	encrypt_reply(unsigned char *, int);
101 void	encrypt_start(uchar_t *, int);
102 void	encrypt_start_input(int);
103 void	encrypt_session_key(Session_Key *);
104 void	encrypt_end(void);
105 void	encrypt_request_end(void);
106 void	encrypt_request_start(uchar_t *, int);
107 void	encrypt_enc_keyid(uchar_t *, int);
108 void	encrypt_dec_keyid(uchar_t *, int);
109 void	encrypt_end_input(void);
110 void	encrypt_end_output(void);
111 boolean_t	encrypt_is_encrypting(void);
112 void	encrypt_send_support(void);
113 void	encrypt_send_keyid(int, unsigned char *, int, int);
114 void	encrypt_display(void);
115 void	encrypt_printsub(uchar_t *, int,  uchar_t *, int);
116 
117 void	cfb64_encrypt(unsigned char *, int);
118 int	cfb64_decrypt(int);
119 void	cfb64_init(void);
120 int	cfb64_start(int);
121 int	cfb64_is(unsigned char *, int);
122 int	cfb64_reply(unsigned char *, int);
123 void	cfb64_session(Session_Key *);
124 int	cfb64_keyid(int, unsigned char *, int *);
125 void	cfb64_printsub(unsigned char *, int, unsigned char *, int);
126 
127 extern boolean_t	encrypt_debug_mode;
128 extern int	(*decrypt_input)(int);
129 extern void	(*encrypt_output)(unsigned char *, int);
130 
131 int	key_file_exists(void);
132 void	key_lookup(unsigned char *, Block);
133 void	key_stream_init(Block, Block, int);
134 unsigned char	key_stream(int, int);
135 
136 int	EncryptStatus(void);
137 int	EncryptEnable(char *, char *);
138 int	EncryptDisable(char *, char *);
139 int	EncryptType(char *, char *);
140 int	EncryptStart(char *);
141 int	EncryptStartInput(void);
142 int	EncryptStartOutput(void);
143 int	EncryptStop(char *);
144 int	EncryptStopInput(void);
145 int	EncryptStopOutput(void);
146 int	EncryptDebug(int);
147 int	EncryptVerbose(int);
148 int	EncryptAutoEnc(int);
149 int	EncryptAutoDec(int);
150 
151 #ifdef	__cplusplus
152 }
153 #endif
154 
155 #endif	/* _ENCRYPT_H */
156