1 /* ssl/s23_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
63 long ssl23_default_timeout(void)
64 {
65 return(300);
66 }
67
68 int ssl23_num_ciphers(void)
69 {
70 return(ssl3_num_ciphers()
71 #ifndef OPENSSL_NO_SSL2
72 + ssl2_num_ciphers()
73 #endif
74 );
75 }
76
77 const SSL_CIPHER *ssl23_get_cipher(unsigned int u)
78 {
79 unsigned int uu=ssl3_num_ciphers();
80
81 if (u < uu)
82 return(ssl3_get_cipher(u));
83 else
84 #ifndef OPENSSL_NO_SSL2
85 return(ssl2_get_cipher(u-uu));
86 #else
87 return(NULL);
88 #endif
89 }
90
91 /* This function needs to check if the ciphers required are actually
92 * available */
93 const SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p)
94 {
95 const SSL_CIPHER *cp;
96
97 cp=ssl3_get_cipher_by_char(p);
98 #ifndef OPENSSL_NO_SSL2
99 if (cp == NULL)
100 cp=ssl2_get_cipher_by_char(p);
101 #endif
102 return(cp);
103 }
104
105 int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p)
106 {
107 long l;
108
109 /* We can write SSLv2 and SSLv3 ciphers */
110 /* but no ECC ciphers */
111 if (c->algorithm_mkey == SSL_kECDHr ||
112 c->algorithm_mkey == SSL_kECDHe ||
113 c->algorithm_mkey == SSL_kEECDH ||
114 c->algorithm_auth == SSL_aECDH ||
115 c->algorithm_auth == SSL_aECDSA)
116 return 0;
117 if (p != NULL)
118 {
119 l=c->id;
120 p[0]=((unsigned char)(l>>16L))&0xFF;
121 p[1]=((unsigned char)(l>> 8L))&0xFF;
122 p[2]=((unsigned char)(l ))&0xFF;
123 }
124 return(3);
125 }
126
127 int ssl23_read(SSL *s, void *buf, int len)
128 {
129 int n;
130
131 clear_sys_error();
132 if (SSL_in_init(s) && (!s->in_handshake))
133 {
134 n=s->handshake_func(s);
135 if (n < 0) return(n);
136 if (n == 0)
137 {
138 SSLerr(SSL_F_SSL23_READ,SSL_R_SSL_HANDSHAKE_FAILURE);
139 return(-1);
140 }
141 return(SSL_read(s,buf,len));
142 }
143 else
144 {
145 ssl_undefined_function(s);
146 return(-1);
147 }
148 }
149
150 int ssl23_peek(SSL *s, void *buf, int len)
151 {
152 int n;
153
154 clear_sys_error();
155 if (SSL_in_init(s) && (!s->in_handshake))
156 {
157 n=s->handshake_func(s);
158 if (n < 0) return(n);
159 if (n == 0)
160 {
161 SSLerr(SSL_F_SSL23_PEEK,SSL_R_SSL_HANDSHAKE_FAILURE);
162 return(-1);
163 }
164 return(SSL_peek(s,buf,len));
165 }
166 else
167 {
168 ssl_undefined_function(s);
169 return(-1);
170 }
171 }
172
173 int ssl23_write(SSL *s, const void *buf, int len)
174 {
175 int n;
176
177 clear_sys_error();
178 if (SSL_in_init(s) && (!s->in_handshake))
179 {
180 n=s->handshake_func(s);
181 if (n < 0) return(n);
182 if (n == 0)
183 {
184 SSLerr(SSL_F_SSL23_WRITE,SSL_R_SSL_HANDSHAKE_FAILURE);
185 return(-1);
186 }
187 return(SSL_write(s,buf,len));
188 }
189 else
190 {
191 ssl_undefined_function(s);
192 return(-1);
193 }
194 }