]>
Commit | Line | Data |
---|---|---|
d02b48c6 | 1 | /* ssl/s23_lib.c */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
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 "objects.h" | |
61 | #include "ssl_locl.h" | |
62 | ||
63 | #ifndef NOPROTO | |
64 | static int ssl23_num_ciphers(void ); | |
65 | static SSL_CIPHER *ssl23_get_cipher(unsigned int u); | |
66 | static int ssl23_read(SSL *s, char *buf, int len); | |
67 | static int ssl23_write(SSL *s, char *buf, int len); | |
68 | static long ssl23_default_timeout(void ); | |
69 | static int ssl23_put_cipher_by_char(SSL_CIPHER *c, unsigned char *p); | |
70 | static SSL_CIPHER *ssl23_get_cipher_by_char(unsigned char *p); | |
71 | #else | |
72 | static int ssl23_num_ciphers(); | |
73 | static SSL_CIPHER *ssl23_get_cipher(); | |
74 | static int ssl23_read(); | |
75 | static int ssl23_write(); | |
76 | static long ssl23_default_timeout(); | |
77 | static int ssl23_put_cipher_by_char(); | |
78 | static SSL_CIPHER *ssl23_get_cipher_by_char(); | |
79 | #endif | |
80 | ||
9cb0969f | 81 | char *SSL23_version_str="SSLv2/3 compatibility part of OpenSSL 0.9.2 31-Dec-1998"; |
d02b48c6 RE |
82 | |
83 | static SSL_METHOD SSLv23_data= { | |
58964a49 RE |
84 | TLS1_VERSION, |
85 | tls1_new, | |
86 | tls1_clear, | |
87 | tls1_free, | |
d02b48c6 RE |
88 | ssl_undefined_function, |
89 | ssl_undefined_function, | |
90 | ssl23_read, | |
91 | ssl_undefined_function, | |
92 | ssl23_write, | |
93 | ssl_undefined_function, | |
94 | ssl_undefined_function, | |
dfeab068 | 95 | ssl_ok, |
d02b48c6 RE |
96 | ssl3_ctrl, |
97 | ssl3_ctx_ctrl, | |
98 | ssl23_get_cipher_by_char, | |
99 | ssl23_put_cipher_by_char, | |
100 | ssl_undefined_function, | |
101 | ssl23_num_ciphers, | |
102 | ssl23_get_cipher, | |
103 | ssl_bad_method, | |
104 | ssl23_default_timeout, | |
58964a49 | 105 | &ssl3_undef_enc_method, |
d02b48c6 RE |
106 | }; |
107 | ||
108 | static long ssl23_default_timeout() | |
109 | { | |
110 | return(300); | |
111 | } | |
112 | ||
113 | SSL_METHOD *sslv23_base_method() | |
114 | { | |
115 | return(&SSLv23_data); | |
116 | } | |
117 | ||
118 | static int ssl23_num_ciphers() | |
119 | { | |
120 | return(ssl3_num_ciphers()+ssl2_num_ciphers()); | |
121 | } | |
122 | ||
123 | static SSL_CIPHER *ssl23_get_cipher(u) | |
124 | unsigned int u; | |
125 | { | |
126 | unsigned int uu=ssl3_num_ciphers(); | |
127 | ||
128 | if (u < uu) | |
129 | return(ssl3_get_cipher(u)); | |
130 | else | |
131 | return(ssl2_get_cipher(u-uu)); | |
132 | } | |
133 | ||
134 | /* This function needs to check if the ciphers required are actually | |
135 | * available */ | |
136 | static SSL_CIPHER *ssl23_get_cipher_by_char(p) | |
137 | unsigned char *p; | |
138 | { | |
139 | SSL_CIPHER c,*cp; | |
140 | unsigned long id; | |
141 | int n; | |
142 | ||
143 | n=ssl3_num_ciphers(); | |
144 | id=0x03000000|((unsigned long)p[0]<<16L)| | |
145 | ((unsigned long)p[1]<<8L)|(unsigned long)p[2]; | |
146 | c.id=id; | |
147 | cp=ssl3_get_cipher_by_char(p); | |
148 | if (cp == NULL) | |
149 | cp=ssl2_get_cipher_by_char(p); | |
150 | return(cp); | |
151 | } | |
152 | ||
153 | static int ssl23_put_cipher_by_char(c,p) | |
154 | SSL_CIPHER *c; | |
155 | unsigned char *p; | |
156 | { | |
157 | long l; | |
158 | ||
159 | /* We can write SSLv2 and SSLv3 ciphers */ | |
160 | if (p != NULL) | |
161 | { | |
162 | l=c->id; | |
163 | p[0]=((unsigned char)(l>>16L))&0xFF; | |
164 | p[1]=((unsigned char)(l>> 8L))&0xFF; | |
165 | p[2]=((unsigned char)(l ))&0xFF; | |
166 | } | |
167 | return(3); | |
168 | } | |
169 | ||
170 | static int ssl23_read(s,buf,len) | |
171 | SSL *s; | |
172 | char *buf; | |
173 | int len; | |
174 | { | |
175 | int n; | |
176 | ||
177 | #if 0 | |
178 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) | |
179 | { | |
180 | s->rwstate=SSL_NOTHING; | |
181 | return(0); | |
182 | } | |
183 | #endif | |
58964a49 | 184 | clear_sys_error(); |
d02b48c6 RE |
185 | if (SSL_in_init(s) && (!s->in_handshake)) |
186 | { | |
187 | n=s->handshake_func(s); | |
188 | if (n < 0) return(n); | |
189 | if (n == 0) | |
190 | { | |
191 | SSLerr(SSL_F_SSL23_READ,SSL_R_SSL_HANDSHAKE_FAILURE); | |
192 | return(-1); | |
193 | } | |
194 | return(SSL_read(s,buf,len)); | |
195 | } | |
196 | else | |
197 | { | |
198 | ssl_undefined_function(s); | |
199 | return(-1); | |
200 | } | |
201 | } | |
202 | ||
203 | static int ssl23_write(s,buf,len) | |
204 | SSL *s; | |
205 | char *buf; | |
206 | int len; | |
207 | { | |
208 | int n; | |
209 | ||
210 | #if 0 | |
211 | if (s->shutdown & SSL_SENT_SHUTDOWN) | |
212 | { | |
213 | s->rwstate=SSL_NOTHING; | |
214 | return(0); | |
215 | } | |
216 | #endif | |
58964a49 | 217 | clear_sys_error(); |
d02b48c6 RE |
218 | if (SSL_in_init(s) && (!s->in_handshake)) |
219 | { | |
220 | n=s->handshake_func(s); | |
221 | if (n < 0) return(n); | |
222 | if (n == 0) | |
223 | { | |
224 | SSLerr(SSL_F_SSL23_WRITE,SSL_R_SSL_HANDSHAKE_FAILURE); | |
225 | return(-1); | |
226 | } | |
227 | return(SSL_write(s,buf,len)); | |
228 | } | |
229 | else | |
230 | { | |
231 | ssl_undefined_function(s); | |
232 | return(-1); | |
233 | } | |
234 | } |