t1_lib.c revision 55714 
1/* ssl/t1_lib.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to.  The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 *    notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 *    notice, this list of conditions and the following disclaimer in the
30 *    documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 *    must display the following acknowledgement:
33 *    "This product includes cryptographic software written by
34 *     Eric Young (eay@cryptsoft.com)"
35 *    The word 'cryptographic' can be left out if the rouines from the library
36 *    being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 *    the apps directory (application code) you must include an acknowledgement:
39 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed.  i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60#include <openssl/objects.h>
61#include "ssl_locl.h"
62
63char *tls1_version_str="TLSv1" OPENSSL_VERSION_PTEXT;
64
65#ifndef NO_PROTO
66static long tls1_default_timeout(void);
67#else
68static long tls1_default_timeout();
69#endif
70
71static SSL3_ENC_METHOD TLSv1_enc_data={
72	tls1_enc,
73	tls1_mac,
74	tls1_setup_key_block,
75	tls1_generate_master_secret,
76	tls1_change_cipher_state,
77	tls1_final_finish_mac,
78	TLS1_FINISH_MAC_LENGTH,
79	tls1_cert_verify_mac,
80	TLS_MD_CLIENT_FINISH_CONST,TLS_MD_CLIENT_FINISH_CONST_SIZE,
81	TLS_MD_SERVER_FINISH_CONST,TLS_MD_SERVER_FINISH_CONST_SIZE,
82	tls1_alert_code,
83	};
84
85static SSL_METHOD TLSv1_data= {
86	TLS1_VERSION,
87	tls1_new,
88	tls1_clear,
89	tls1_free,
90	ssl_undefined_function,
91	ssl_undefined_function,
92	ssl3_read,
93	ssl3_peek,
94	ssl3_write,
95	ssl3_shutdown,
96	ssl3_renegotiate,
97	ssl3_renegotiate_check,
98	ssl3_ctrl,
99	ssl3_ctx_ctrl,
100	ssl3_get_cipher_by_char,
101	ssl3_put_cipher_by_char,
102	ssl3_pending,
103	ssl3_num_ciphers,
104	ssl3_get_cipher,
105	ssl_bad_method,
106	tls1_default_timeout,
107	&TLSv1_enc_data,
108	};
109
110static long tls1_default_timeout(void)
111	{
112	/* 2 hours, the 24 hours mentioned in the TLSv1 spec
113	 * is way too long for http, the cache would over fill */
114	return(60*60*2);
115	}
116
117SSL_METHOD *tlsv1_base_method(void)
118	{
119	return(&TLSv1_data);
120	}
121
122int tls1_new(SSL *s)
123	{
124	if (!ssl3_new(s)) return(0);
125	s->method->ssl_clear(s);
126	return(1);
127	}
128
129void tls1_free(SSL *s)
130	{
131	ssl3_free(s);
132	}
133
134void tls1_clear(SSL *s)
135	{
136	ssl3_clear(s);
137	s->version=TLS1_VERSION;
138	}
139
140#if 0
141long tls1_ctrl(SSL *s, int cmd, long larg, char *parg)
142	{
143	return(0);
144	}
145#endif
146