summaryrefslogtreecommitdiff
path: root/src/lib/libssl/t1_reneg.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--src/lib/libssl/t1_reneg.c275
1 files changed, 0 insertions, 275 deletions
diff --git a/src/lib/libssl/t1_reneg.c b/src/lib/libssl/t1_reneg.c
deleted file mode 100644
index 4e194dd5df..0000000000
--- a/src/lib/libssl/t1_reneg.c
+++ /dev/null
@@ -1,275 +0,0 @@
1/* $OpenBSD: t1_reneg.c,v 1.15 2017/02/07 02:08:38 beck Exp $ */
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 * Copyright (c) 1998-2009 The OpenSSL Project. All rights reserved.
60 *
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
63 * are met:
64 *
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
67 *
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
71 * distribution.
72 *
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 *
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
82 *
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
86 *
87 * 6. Redistributions of any form whatsoever must retain the following
88 * acknowledgment:
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 *
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
105 *
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
109 *
110 */
111
112#include <stdio.h>
113
114#include <openssl/objects.h>
115
116#include "ssl_locl.h"
117#include "bytestring.h"
118
119/* Add the client's renegotiation binding */
120int
121ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
122 int maxlen)
123{
124 if (p) {
125 if ((S3I(s)->previous_client_finished_len + 1) > maxlen) {
126 SSLerror(s, SSL_R_RENEGOTIATE_EXT_TOO_LONG);
127 return 0;
128 }
129
130 /* Length byte */
131 *p = S3I(s)->previous_client_finished_len;
132 p++;
133
134 memcpy(p, S3I(s)->previous_client_finished,
135 S3I(s)->previous_client_finished_len);
136
137 }
138
139 *len = S3I(s)->previous_client_finished_len + 1;
140
141 return 1;
142}
143
144/* Parse the client's renegotiation binding and abort if it's not
145 right */
146int
147ssl_parse_clienthello_renegotiate_ext(SSL *s, const unsigned char *d, int len,
148 int *al)
149{
150 CBS cbs, reneg;
151
152 if (len < 0) {
153 SSLerror(s, SSL_R_RENEGOTIATION_ENCODING_ERR);
154 *al = SSL_AD_ILLEGAL_PARAMETER;
155 return 0;
156 }
157
158 CBS_init(&cbs, d, len);
159 if (!CBS_get_u8_length_prefixed(&cbs, &reneg) ||
160 /* Consistency check */
161 CBS_len(&cbs) != 0) {
162 SSLerror(s, SSL_R_RENEGOTIATION_ENCODING_ERR);
163 *al = SSL_AD_ILLEGAL_PARAMETER;
164 return 0;
165 }
166
167 /* Check that the extension matches */
168 if (CBS_len(&reneg) != S3I(s)->previous_client_finished_len) {
169 SSLerror(s, SSL_R_RENEGOTIATION_MISMATCH);
170 *al = SSL_AD_HANDSHAKE_FAILURE;
171 return 0;
172 }
173
174 if (!CBS_mem_equal(&reneg, S3I(s)->previous_client_finished,
175 S3I(s)->previous_client_finished_len)) {
176 SSLerror(s, SSL_R_RENEGOTIATION_MISMATCH);
177 *al = SSL_AD_HANDSHAKE_FAILURE;
178 return 0;
179 }
180
181 S3I(s)->send_connection_binding = 1;
182
183 return 1;
184}
185
186/* Add the server's renegotiation binding */
187int
188ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
189 int maxlen)
190{
191 if (p) {
192 if ((S3I(s)->previous_client_finished_len +
193 S3I(s)->previous_server_finished_len + 1) > maxlen) {
194 SSLerror(s, SSL_R_RENEGOTIATE_EXT_TOO_LONG);
195 return 0;
196 }
197
198 /* Length byte */
199 *p = S3I(s)->previous_client_finished_len +
200 S3I(s)->previous_server_finished_len;
201 p++;
202
203 memcpy(p, S3I(s)->previous_client_finished,
204 S3I(s)->previous_client_finished_len);
205 p += S3I(s)->previous_client_finished_len;
206
207 memcpy(p, S3I(s)->previous_server_finished,
208 S3I(s)->previous_server_finished_len);
209
210 }
211
212 *len = S3I(s)->previous_client_finished_len +
213 S3I(s)->previous_server_finished_len + 1;
214
215 return 1;
216}
217
218/* Parse the server's renegotiation binding and abort if it's not
219 right */
220int
221ssl_parse_serverhello_renegotiate_ext(SSL *s, const unsigned char *d, int len, int *al)
222{
223 CBS cbs, reneg, previous_client, previous_server;
224 int expected_len = S3I(s)->previous_client_finished_len +
225 S3I(s)->previous_server_finished_len;
226
227 /* Check for logic errors */
228 OPENSSL_assert(!expected_len || S3I(s)->previous_client_finished_len);
229 OPENSSL_assert(!expected_len || S3I(s)->previous_server_finished_len);
230
231 if (len < 0) {
232 SSLerror(s, SSL_R_RENEGOTIATION_ENCODING_ERR);
233 *al = SSL_AD_ILLEGAL_PARAMETER;
234 return 0;
235 }
236
237 CBS_init(&cbs, d, len);
238
239 if (!CBS_get_u8_length_prefixed(&cbs, &reneg) ||
240 /* Consistency check */
241 CBS_len(&cbs) != 0) {
242 SSLerror(s, SSL_R_RENEGOTIATION_ENCODING_ERR);
243 *al = SSL_AD_ILLEGAL_PARAMETER;
244 return 0;
245 }
246
247 /* Check that the extension matches */
248 if (CBS_len(&reneg) != expected_len ||
249 !CBS_get_bytes(&reneg, &previous_client,
250 S3I(s)->previous_client_finished_len) ||
251 !CBS_get_bytes(&reneg, &previous_server,
252 S3I(s)->previous_server_finished_len) ||
253 CBS_len(&reneg) != 0) {
254 SSLerror(s, SSL_R_RENEGOTIATION_MISMATCH);
255 *al = SSL_AD_HANDSHAKE_FAILURE;
256 return 0;
257 }
258
259 if (!CBS_mem_equal(&previous_client, S3I(s)->previous_client_finished,
260 CBS_len(&previous_client))) {
261 SSLerror(s, SSL_R_RENEGOTIATION_MISMATCH);
262 *al = SSL_AD_HANDSHAKE_FAILURE;
263 return 0;
264 }
265 if (!CBS_mem_equal(&previous_server, S3I(s)->previous_server_finished,
266 CBS_len(&previous_server))) {
267 SSLerror(s, SSL_R_RENEGOTIATION_MISMATCH);
268 *al = SSL_AD_ILLEGAL_PARAMETER;
269 return 0;
270 }
271
272 S3I(s)->send_connection_binding = 1;
273
274 return 1;
275}
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-10-23 05:43:26 +0000