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