Line data Source code
1 : /* ssl/ssl_ciph.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 : * Copyright (c) 1998-2007 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 : * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113 : * ECC cipher suite support in OpenSSL originally developed by
114 : * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
115 : */
116 : /* ====================================================================
117 : * Copyright 2005 Nokia. All rights reserved.
118 : *
119 : * The portions of the attached software ("Contribution") is developed by
120 : * Nokia Corporation and is licensed pursuant to the OpenSSL open source
121 : * license.
122 : *
123 : * The Contribution, originally written by Mika Kousa and Pasi Eronen of
124 : * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
125 : * support (see RFC 4279) to OpenSSL.
126 : *
127 : * No patent licenses or other rights except those expressly stated in
128 : * the OpenSSL open source license shall be deemed granted or received
129 : * expressly, by implication, estoppel, or otherwise.
130 : *
131 : * No assurances are provided by Nokia that the Contribution does not
132 : * infringe the patent or other intellectual property rights of any third
133 : * party or that the license provides you with all the necessary rights
134 : * to make use of the Contribution.
135 : *
136 : * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
137 : * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
138 : * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
139 : * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
140 : * OTHERWISE.
141 : */
142 :
143 : #include <stdio.h>
144 : #include <openssl/objects.h>
145 : #ifndef OPENSSL_NO_COMP
146 : # include <openssl/comp.h>
147 : #endif
148 : #ifndef OPENSSL_NO_ENGINE
149 : # include <openssl/engine.h>
150 : #endif
151 : #include "ssl_locl.h"
152 :
153 : #define SSL_ENC_DES_IDX 0
154 : #define SSL_ENC_3DES_IDX 1
155 : #define SSL_ENC_RC4_IDX 2
156 : #define SSL_ENC_RC2_IDX 3
157 : #define SSL_ENC_IDEA_IDX 4
158 : #define SSL_ENC_NULL_IDX 5
159 : #define SSL_ENC_AES128_IDX 6
160 : #define SSL_ENC_AES256_IDX 7
161 : #define SSL_ENC_CAMELLIA128_IDX 8
162 : #define SSL_ENC_CAMELLIA256_IDX 9
163 : #define SSL_ENC_GOST89_IDX 10
164 : #define SSL_ENC_SEED_IDX 11
165 : #define SSL_ENC_AES128GCM_IDX 12
166 : #define SSL_ENC_AES256GCM_IDX 13
167 : #define SSL_ENC_NUM_IDX 14
168 :
169 : static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX] = {
170 : NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
171 : NULL, NULL
172 : };
173 :
174 : #define SSL_COMP_NULL_IDX 0
175 : #define SSL_COMP_ZLIB_IDX 1
176 : #define SSL_COMP_NUM_IDX 2
177 :
178 : static STACK_OF(SSL_COMP) *ssl_comp_methods = NULL;
179 :
180 : #define SSL_MD_MD5_IDX 0
181 : #define SSL_MD_SHA1_IDX 1
182 : #define SSL_MD_GOST94_IDX 2
183 : #define SSL_MD_GOST89MAC_IDX 3
184 : #define SSL_MD_SHA256_IDX 4
185 : #define SSL_MD_SHA384_IDX 5
186 : /*
187 : * Constant SSL_MAX_DIGEST equal to size of digests array should be defined
188 : * in the ssl_locl.h
189 : */
190 : #define SSL_MD_NUM_IDX SSL_MAX_DIGEST
191 : static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX] = {
192 : NULL, NULL, NULL, NULL, NULL, NULL
193 : };
194 :
195 : /*
196 : * PKEY_TYPE for GOST89MAC is known in advance, but, because implementation
197 : * is engine-provided, we'll fill it only if corresponding EVP_PKEY_METHOD is
198 : * found
199 : */
200 : static int ssl_mac_pkey_id[SSL_MD_NUM_IDX] = {
201 : EVP_PKEY_HMAC, EVP_PKEY_HMAC, EVP_PKEY_HMAC, NID_undef,
202 : EVP_PKEY_HMAC, EVP_PKEY_HMAC
203 : };
204 :
205 : static int ssl_mac_secret_size[SSL_MD_NUM_IDX] = {
206 : 0, 0, 0, 0, 0, 0
207 : };
208 :
209 : static int ssl_handshake_digest_flag[SSL_MD_NUM_IDX] = {
210 : SSL_HANDSHAKE_MAC_MD5, SSL_HANDSHAKE_MAC_SHA,
211 : SSL_HANDSHAKE_MAC_GOST94, 0, SSL_HANDSHAKE_MAC_SHA256,
212 : SSL_HANDSHAKE_MAC_SHA384
213 : };
214 :
215 : #define CIPHER_ADD 1
216 : #define CIPHER_KILL 2
217 : #define CIPHER_DEL 3
218 : #define CIPHER_ORD 4
219 : #define CIPHER_SPECIAL 5
220 :
221 : typedef struct cipher_order_st {
222 : const SSL_CIPHER *cipher;
223 : int active;
224 : int dead;
225 : struct cipher_order_st *next, *prev;
226 : } CIPHER_ORDER;
227 :
228 : static const SSL_CIPHER cipher_aliases[] = {
229 : /* "ALL" doesn't include eNULL (must be specifically enabled) */
230 : {0, SSL_TXT_ALL, 0, 0, 0, ~SSL_eNULL, 0, 0, 0, 0, 0, 0},
231 : /* "COMPLEMENTOFALL" */
232 : {0, SSL_TXT_CMPALL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0},
233 :
234 : /*
235 : * "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in
236 : * ALL!)
237 : */
238 : {0, SSL_TXT_CMPDEF, 0, 0, SSL_aNULL, ~SSL_eNULL, 0, ~SSL_SSLV2,
239 : SSL_EXP_MASK, 0, 0, 0},
240 :
241 : /*
242 : * key exchange aliases (some of those using only a single bit here
243 : * combine multiple key exchange algs according to the RFCs, e.g. kEDH
244 : * combines DHE_DSS and DHE_RSA)
245 : */
246 : {0, SSL_TXT_kRSA, 0, SSL_kRSA, 0, 0, 0, 0, 0, 0, 0, 0},
247 :
248 : {0, SSL_TXT_kDHr, 0, SSL_kDHr, 0, 0, 0, 0, 0, 0, 0, 0},
249 : {0, SSL_TXT_kDHd, 0, SSL_kDHd, 0, 0, 0, 0, 0, 0, 0, 0},
250 : {0, SSL_TXT_kDH, 0, SSL_kDHr | SSL_kDHd, 0, 0, 0, 0, 0, 0, 0, 0},
251 : {0, SSL_TXT_kEDH, 0, SSL_kEDH, 0, 0, 0, 0, 0, 0, 0, 0},
252 : {0, SSL_TXT_kDHE, 0, SSL_kEDH, 0, 0, 0, 0, 0, 0, 0, 0},
253 : {0, SSL_TXT_DH, 0, SSL_kDHr | SSL_kDHd | SSL_kEDH, 0, 0, 0, 0, 0, 0, 0,
254 : 0},
255 :
256 : {0, SSL_TXT_kKRB5, 0, SSL_kKRB5, 0, 0, 0, 0, 0, 0, 0, 0},
257 :
258 : {0, SSL_TXT_kECDHr, 0, SSL_kECDHr, 0, 0, 0, 0, 0, 0, 0, 0},
259 : {0, SSL_TXT_kECDHe, 0, SSL_kECDHe, 0, 0, 0, 0, 0, 0, 0, 0},
260 : {0, SSL_TXT_kECDH, 0, SSL_kECDHr | SSL_kECDHe, 0, 0, 0, 0, 0, 0, 0, 0},
261 : {0, SSL_TXT_kEECDH, 0, SSL_kEECDH, 0, 0, 0, 0, 0, 0, 0, 0},
262 : {0, SSL_TXT_kECDHE, 0, SSL_kEECDH, 0, 0, 0, 0, 0, 0, 0, 0},
263 : {0, SSL_TXT_ECDH, 0, SSL_kECDHr | SSL_kECDHe | SSL_kEECDH, 0, 0, 0, 0, 0,
264 : 0, 0, 0},
265 :
266 : {0, SSL_TXT_kPSK, 0, SSL_kPSK, 0, 0, 0, 0, 0, 0, 0, 0},
267 : {0, SSL_TXT_kSRP, 0, SSL_kSRP, 0, 0, 0, 0, 0, 0, 0, 0},
268 : {0, SSL_TXT_kGOST, 0, SSL_kGOST, 0, 0, 0, 0, 0, 0, 0, 0},
269 :
270 : /* server authentication aliases */
271 : {0, SSL_TXT_aRSA, 0, 0, SSL_aRSA, 0, 0, 0, 0, 0, 0, 0},
272 : {0, SSL_TXT_aDSS, 0, 0, SSL_aDSS, 0, 0, 0, 0, 0, 0, 0},
273 : {0, SSL_TXT_DSS, 0, 0, SSL_aDSS, 0, 0, 0, 0, 0, 0, 0},
274 : {0, SSL_TXT_aKRB5, 0, 0, SSL_aKRB5, 0, 0, 0, 0, 0, 0, 0},
275 : {0, SSL_TXT_aNULL, 0, 0, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
276 : /* no such ciphersuites supported! */
277 : {0, SSL_TXT_aDH, 0, 0, SSL_aDH, 0, 0, 0, 0, 0, 0, 0},
278 : {0, SSL_TXT_aECDH, 0, 0, SSL_aECDH, 0, 0, 0, 0, 0, 0, 0},
279 : {0, SSL_TXT_aECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0},
280 : {0, SSL_TXT_ECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0},
281 : {0, SSL_TXT_aPSK, 0, 0, SSL_aPSK, 0, 0, 0, 0, 0, 0, 0},
282 : {0, SSL_TXT_aGOST94, 0, 0, SSL_aGOST94, 0, 0, 0, 0, 0, 0, 0},
283 : {0, SSL_TXT_aGOST01, 0, 0, SSL_aGOST01, 0, 0, 0, 0, 0, 0, 0},
284 : {0, SSL_TXT_aGOST, 0, 0, SSL_aGOST94 | SSL_aGOST01, 0, 0, 0, 0, 0, 0, 0},
285 : {0, SSL_TXT_aSRP, 0, 0, SSL_aSRP, 0, 0, 0, 0, 0, 0, 0},
286 :
287 : /* aliases combining key exchange and server authentication */
288 : {0, SSL_TXT_EDH, 0, SSL_kEDH, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
289 : {0, SSL_TXT_DHE, 0, SSL_kEDH, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
290 : {0, SSL_TXT_EECDH, 0, SSL_kEECDH, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
291 : {0, SSL_TXT_ECDHE, 0, SSL_kEECDH, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
292 : {0, SSL_TXT_NULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0},
293 : {0, SSL_TXT_KRB5, 0, SSL_kKRB5, SSL_aKRB5, 0, 0, 0, 0, 0, 0, 0},
294 : {0, SSL_TXT_RSA, 0, SSL_kRSA, SSL_aRSA, 0, 0, 0, 0, 0, 0, 0},
295 : {0, SSL_TXT_ADH, 0, SSL_kEDH, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
296 : {0, SSL_TXT_AECDH, 0, SSL_kEECDH, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
297 : {0, SSL_TXT_PSK, 0, SSL_kPSK, SSL_aPSK, 0, 0, 0, 0, 0, 0, 0},
298 : {0, SSL_TXT_SRP, 0, SSL_kSRP, 0, 0, 0, 0, 0, 0, 0, 0},
299 :
300 : /* symmetric encryption aliases */
301 : {0, SSL_TXT_DES, 0, 0, 0, SSL_DES, 0, 0, 0, 0, 0, 0},
302 : {0, SSL_TXT_3DES, 0, 0, 0, SSL_3DES, 0, 0, 0, 0, 0, 0},
303 : {0, SSL_TXT_RC4, 0, 0, 0, SSL_RC4, 0, 0, 0, 0, 0, 0},
304 : {0, SSL_TXT_RC2, 0, 0, 0, SSL_RC2, 0, 0, 0, 0, 0, 0},
305 : {0, SSL_TXT_IDEA, 0, 0, 0, SSL_IDEA, 0, 0, 0, 0, 0, 0},
306 : {0, SSL_TXT_SEED, 0, 0, 0, SSL_SEED, 0, 0, 0, 0, 0, 0},
307 : {0, SSL_TXT_eNULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0},
308 : {0, SSL_TXT_AES128, 0, 0, 0, SSL_AES128 | SSL_AES128GCM, 0, 0, 0, 0, 0,
309 : 0},
310 : {0, SSL_TXT_AES256, 0, 0, 0, SSL_AES256 | SSL_AES256GCM, 0, 0, 0, 0, 0,
311 : 0},
312 : {0, SSL_TXT_AES, 0, 0, 0, SSL_AES, 0, 0, 0, 0, 0, 0},
313 : {0, SSL_TXT_AES_GCM, 0, 0, 0, SSL_AES128GCM | SSL_AES256GCM, 0, 0, 0, 0,
314 : 0, 0},
315 : {0, SSL_TXT_CAMELLIA128, 0, 0, 0, SSL_CAMELLIA128, 0, 0, 0, 0, 0, 0},
316 : {0, SSL_TXT_CAMELLIA256, 0, 0, 0, SSL_CAMELLIA256, 0, 0, 0, 0, 0, 0},
317 : {0, SSL_TXT_CAMELLIA, 0, 0, 0, SSL_CAMELLIA128 | SSL_CAMELLIA256, 0, 0, 0,
318 : 0, 0, 0},
319 :
320 : /* MAC aliases */
321 : {0, SSL_TXT_MD5, 0, 0, 0, 0, SSL_MD5, 0, 0, 0, 0, 0},
322 : {0, SSL_TXT_SHA1, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0},
323 : {0, SSL_TXT_SHA, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0},
324 : {0, SSL_TXT_GOST94, 0, 0, 0, 0, SSL_GOST94, 0, 0, 0, 0, 0},
325 : {0, SSL_TXT_GOST89MAC, 0, 0, 0, 0, SSL_GOST89MAC, 0, 0, 0, 0, 0},
326 : {0, SSL_TXT_SHA256, 0, 0, 0, 0, SSL_SHA256, 0, 0, 0, 0, 0},
327 : {0, SSL_TXT_SHA384, 0, 0, 0, 0, SSL_SHA384, 0, 0, 0, 0, 0},
328 :
329 : /* protocol version aliases */
330 : {0, SSL_TXT_SSLV2, 0, 0, 0, 0, 0, SSL_SSLV2, 0, 0, 0, 0},
331 : {0, SSL_TXT_SSLV3, 0, 0, 0, 0, 0, SSL_SSLV3, 0, 0, 0, 0},
332 : {0, SSL_TXT_TLSV1, 0, 0, 0, 0, 0, SSL_TLSV1, 0, 0, 0, 0},
333 : {0, SSL_TXT_TLSV1_2, 0, 0, 0, 0, 0, SSL_TLSV1_2, 0, 0, 0, 0},
334 :
335 : /* export flag */
336 : {0, SSL_TXT_EXP, 0, 0, 0, 0, 0, 0, SSL_EXPORT, 0, 0, 0},
337 : {0, SSL_TXT_EXPORT, 0, 0, 0, 0, 0, 0, SSL_EXPORT, 0, 0, 0},
338 :
339 : /* strength classes */
340 : {0, SSL_TXT_EXP40, 0, 0, 0, 0, 0, 0, SSL_EXP40, 0, 0, 0},
341 : {0, SSL_TXT_EXP56, 0, 0, 0, 0, 0, 0, SSL_EXP56, 0, 0, 0},
342 : {0, SSL_TXT_LOW, 0, 0, 0, 0, 0, 0, SSL_LOW, 0, 0, 0},
343 : {0, SSL_TXT_MEDIUM, 0, 0, 0, 0, 0, 0, SSL_MEDIUM, 0, 0, 0},
344 : {0, SSL_TXT_HIGH, 0, 0, 0, 0, 0, 0, SSL_HIGH, 0, 0, 0},
345 : /* FIPS 140-2 approved ciphersuite */
346 : {0, SSL_TXT_FIPS, 0, 0, 0, ~SSL_eNULL, 0, 0, SSL_FIPS, 0, 0, 0},
347 : /* "DHE-" aliases to "EDH-" labels (for forward compatibility) */
348 : {0, SSL3_TXT_DHE_DSS_DES_40_CBC_SHA, 0,
349 : SSL_kDHE, SSL_aDSS, SSL_DES, SSL_SHA1, SSL_SSLV3, SSL_EXPORT | SSL_EXP40,
350 : 0, 0, 0,},
351 : {0, SSL3_TXT_DHE_DSS_DES_64_CBC_SHA, 0,
352 : SSL_kDHE, SSL_aDSS, SSL_DES, SSL_SHA1, SSL_SSLV3, SSL_NOT_EXP | SSL_LOW,
353 : 0, 0, 0,},
354 : {0, SSL3_TXT_DHE_DSS_DES_192_CBC3_SHA, 0,
355 : SSL_kDHE, SSL_aDSS, SSL_3DES, SSL_SHA1, SSL_SSLV3,
356 : SSL_NOT_EXP | SSL_HIGH | SSL_FIPS, 0, 0, 0,},
357 : {0, SSL3_TXT_DHE_RSA_DES_40_CBC_SHA, 0,
358 : SSL_kDHE, SSL_aRSA, SSL_DES, SSL_SHA1, SSL_SSLV3, SSL_EXPORT | SSL_EXP40,
359 : 0, 0, 0,},
360 : {0, SSL3_TXT_DHE_RSA_DES_64_CBC_SHA, 0,
361 : SSL_kDHE, SSL_aRSA, SSL_DES, SSL_SHA1, SSL_SSLV3, SSL_NOT_EXP | SSL_LOW,
362 : 0, 0, 0,},
363 : {0, SSL3_TXT_DHE_RSA_DES_192_CBC3_SHA, 0,
364 : SSL_kDHE, SSL_aRSA, SSL_3DES, SSL_SHA1, SSL_SSLV3,
365 : SSL_NOT_EXP | SSL_HIGH | SSL_FIPS, 0, 0, 0,},
366 : };
367 :
368 : /*
369 : * Search for public key algorithm with given name and return its pkey_id if
370 : * it is available. Otherwise return 0
371 : */
372 : #ifdef OPENSSL_NO_ENGINE
373 :
374 : static int get_optional_pkey_id(const char *pkey_name)
375 : {
376 : const EVP_PKEY_ASN1_METHOD *ameth;
377 : int pkey_id = 0;
378 : ameth = EVP_PKEY_asn1_find_str(NULL, pkey_name, -1);
379 : if (ameth) {
380 : EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth);
381 : }
382 : return pkey_id;
383 : }
384 :
385 : #else
386 :
387 3609 : static int get_optional_pkey_id(const char *pkey_name)
388 : {
389 : const EVP_PKEY_ASN1_METHOD *ameth;
390 3609 : ENGINE *tmpeng = NULL;
391 3609 : int pkey_id = 0;
392 3609 : ameth = EVP_PKEY_asn1_find_str(&tmpeng, pkey_name, -1);
393 3609 : if (ameth) {
394 0 : EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth);
395 : }
396 3609 : if (tmpeng)
397 0 : ENGINE_finish(tmpeng);
398 3609 : return pkey_id;
399 : }
400 :
401 : #endif
402 :
403 121 : void ssl_load_ciphers(void)
404 : {
405 121 : ssl_cipher_methods[SSL_ENC_DES_IDX] = EVP_get_cipherbyname(SN_des_cbc);
406 121 : ssl_cipher_methods[SSL_ENC_3DES_IDX] =
407 121 : EVP_get_cipherbyname(SN_des_ede3_cbc);
408 121 : ssl_cipher_methods[SSL_ENC_RC4_IDX] = EVP_get_cipherbyname(SN_rc4);
409 121 : ssl_cipher_methods[SSL_ENC_RC2_IDX] = EVP_get_cipherbyname(SN_rc2_cbc);
410 : #ifndef OPENSSL_NO_IDEA
411 121 : ssl_cipher_methods[SSL_ENC_IDEA_IDX] = EVP_get_cipherbyname(SN_idea_cbc);
412 : #else
413 : ssl_cipher_methods[SSL_ENC_IDEA_IDX] = NULL;
414 : #endif
415 121 : ssl_cipher_methods[SSL_ENC_AES128_IDX] =
416 121 : EVP_get_cipherbyname(SN_aes_128_cbc);
417 121 : ssl_cipher_methods[SSL_ENC_AES256_IDX] =
418 121 : EVP_get_cipherbyname(SN_aes_256_cbc);
419 121 : ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX] =
420 121 : EVP_get_cipherbyname(SN_camellia_128_cbc);
421 121 : ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX] =
422 121 : EVP_get_cipherbyname(SN_camellia_256_cbc);
423 121 : ssl_cipher_methods[SSL_ENC_GOST89_IDX] =
424 121 : EVP_get_cipherbyname(SN_gost89_cnt);
425 121 : ssl_cipher_methods[SSL_ENC_SEED_IDX] = EVP_get_cipherbyname(SN_seed_cbc);
426 :
427 121 : ssl_cipher_methods[SSL_ENC_AES128GCM_IDX] =
428 121 : EVP_get_cipherbyname(SN_aes_128_gcm);
429 121 : ssl_cipher_methods[SSL_ENC_AES256GCM_IDX] =
430 121 : EVP_get_cipherbyname(SN_aes_256_gcm);
431 :
432 121 : ssl_digest_methods[SSL_MD_MD5_IDX] = EVP_get_digestbyname(SN_md5);
433 121 : ssl_mac_secret_size[SSL_MD_MD5_IDX] =
434 121 : EVP_MD_size(ssl_digest_methods[SSL_MD_MD5_IDX]);
435 121 : OPENSSL_assert(ssl_mac_secret_size[SSL_MD_MD5_IDX] >= 0);
436 121 : ssl_digest_methods[SSL_MD_SHA1_IDX] = EVP_get_digestbyname(SN_sha1);
437 121 : ssl_mac_secret_size[SSL_MD_SHA1_IDX] =
438 121 : EVP_MD_size(ssl_digest_methods[SSL_MD_SHA1_IDX]);
439 121 : OPENSSL_assert(ssl_mac_secret_size[SSL_MD_SHA1_IDX] >= 0);
440 121 : ssl_digest_methods[SSL_MD_GOST94_IDX] =
441 121 : EVP_get_digestbyname(SN_id_GostR3411_94);
442 121 : if (ssl_digest_methods[SSL_MD_GOST94_IDX]) {
443 0 : ssl_mac_secret_size[SSL_MD_GOST94_IDX] =
444 0 : EVP_MD_size(ssl_digest_methods[SSL_MD_GOST94_IDX]);
445 0 : OPENSSL_assert(ssl_mac_secret_size[SSL_MD_GOST94_IDX] >= 0);
446 : }
447 121 : ssl_digest_methods[SSL_MD_GOST89MAC_IDX] =
448 121 : EVP_get_digestbyname(SN_id_Gost28147_89_MAC);
449 121 : ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX] = get_optional_pkey_id("gost-mac");
450 121 : if (ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]) {
451 0 : ssl_mac_secret_size[SSL_MD_GOST89MAC_IDX] = 32;
452 : }
453 :
454 121 : ssl_digest_methods[SSL_MD_SHA256_IDX] = EVP_get_digestbyname(SN_sha256);
455 121 : ssl_mac_secret_size[SSL_MD_SHA256_IDX] =
456 121 : EVP_MD_size(ssl_digest_methods[SSL_MD_SHA256_IDX]);
457 121 : ssl_digest_methods[SSL_MD_SHA384_IDX] = EVP_get_digestbyname(SN_sha384);
458 121 : ssl_mac_secret_size[SSL_MD_SHA384_IDX] =
459 121 : EVP_MD_size(ssl_digest_methods[SSL_MD_SHA384_IDX]);
460 121 : }
461 :
462 : #ifndef OPENSSL_NO_COMP
463 :
464 0 : static int sk_comp_cmp(const SSL_COMP *const *a, const SSL_COMP *const *b)
465 : {
466 0 : return ((*a)->id - (*b)->id);
467 : }
468 :
469 1730 : static void load_builtin_compressions(void)
470 : {
471 : int got_write_lock = 0;
472 :
473 1730 : CRYPTO_r_lock(CRYPTO_LOCK_SSL);
474 1730 : if (ssl_comp_methods == NULL) {
475 121 : CRYPTO_r_unlock(CRYPTO_LOCK_SSL);
476 121 : CRYPTO_w_lock(CRYPTO_LOCK_SSL);
477 : got_write_lock = 1;
478 :
479 121 : if (ssl_comp_methods == NULL) {
480 : SSL_COMP *comp = NULL;
481 :
482 121 : MemCheck_off();
483 121 : ssl_comp_methods = sk_SSL_COMP_new(sk_comp_cmp);
484 121 : if (ssl_comp_methods != NULL) {
485 121 : comp = (SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP));
486 121 : if (comp != NULL) {
487 121 : comp->method = COMP_zlib();
488 121 : if (comp->method && comp->method->type == NID_undef)
489 121 : OPENSSL_free(comp);
490 : else {
491 0 : comp->id = SSL_COMP_ZLIB_IDX;
492 0 : comp->name = comp->method->name;
493 0 : sk_SSL_COMP_push(ssl_comp_methods, comp);
494 : }
495 : }
496 121 : sk_SSL_COMP_sort(ssl_comp_methods);
497 : }
498 121 : MemCheck_on();
499 : }
500 : }
501 :
502 1730 : if (got_write_lock)
503 121 : CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
504 : else
505 1609 : CRYPTO_r_unlock(CRYPTO_LOCK_SSL);
506 1730 : }
507 : #endif
508 :
509 737 : int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
510 : const EVP_MD **md, int *mac_pkey_type,
511 : int *mac_secret_size, SSL_COMP **comp)
512 : {
513 : int i;
514 : const SSL_CIPHER *c;
515 :
516 737 : c = s->cipher;
517 737 : if (c == NULL)
518 : return (0);
519 737 : if (comp != NULL) {
520 : SSL_COMP ctmp;
521 : #ifndef OPENSSL_NO_COMP
522 737 : load_builtin_compressions();
523 : #endif
524 :
525 737 : *comp = NULL;
526 737 : ctmp.id = s->compress_meth;
527 737 : if (ssl_comp_methods != NULL) {
528 737 : i = sk_SSL_COMP_find(ssl_comp_methods, &ctmp);
529 737 : if (i >= 0)
530 0 : *comp = sk_SSL_COMP_value(ssl_comp_methods, i);
531 : else
532 737 : *comp = NULL;
533 : }
534 : }
535 :
536 737 : if ((enc == NULL) || (md == NULL))
537 : return (0);
538 :
539 737 : switch (c->algorithm_enc) {
540 : case SSL_DES:
541 : i = SSL_ENC_DES_IDX;
542 : break;
543 : case SSL_3DES:
544 : i = SSL_ENC_3DES_IDX;
545 0 : break;
546 : case SSL_RC4:
547 : i = SSL_ENC_RC4_IDX;
548 0 : break;
549 : case SSL_RC2:
550 : i = SSL_ENC_RC2_IDX;
551 0 : break;
552 : case SSL_IDEA:
553 : i = SSL_ENC_IDEA_IDX;
554 0 : break;
555 : case SSL_eNULL:
556 : i = SSL_ENC_NULL_IDX;
557 0 : break;
558 : case SSL_AES128:
559 : i = SSL_ENC_AES128_IDX;
560 0 : break;
561 : case SSL_AES256:
562 : i = SSL_ENC_AES256_IDX;
563 0 : break;
564 : case SSL_CAMELLIA128:
565 : i = SSL_ENC_CAMELLIA128_IDX;
566 0 : break;
567 : case SSL_CAMELLIA256:
568 : i = SSL_ENC_CAMELLIA256_IDX;
569 0 : break;
570 : case SSL_eGOST2814789CNT:
571 : i = SSL_ENC_GOST89_IDX;
572 0 : break;
573 : case SSL_SEED:
574 : i = SSL_ENC_SEED_IDX;
575 0 : break;
576 : case SSL_AES128GCM:
577 : i = SSL_ENC_AES128GCM_IDX;
578 737 : break;
579 : case SSL_AES256GCM:
580 : i = SSL_ENC_AES256GCM_IDX;
581 0 : break;
582 : default:
583 : i = -1;
584 0 : break;
585 : }
586 :
587 737 : if ((i < 0) || (i >= SSL_ENC_NUM_IDX))
588 0 : *enc = NULL;
589 : else {
590 737 : if (i == SSL_ENC_NULL_IDX)
591 0 : *enc = EVP_enc_null();
592 : else
593 737 : *enc = ssl_cipher_methods[i];
594 : }
595 :
596 737 : switch (c->algorithm_mac) {
597 : case SSL_MD5:
598 : i = SSL_MD_MD5_IDX;
599 : break;
600 : case SSL_SHA1:
601 : i = SSL_MD_SHA1_IDX;
602 : break;
603 : case SSL_SHA256:
604 : i = SSL_MD_SHA256_IDX;
605 : break;
606 : case SSL_SHA384:
607 : i = SSL_MD_SHA384_IDX;
608 : break;
609 : case SSL_GOST94:
610 : i = SSL_MD_GOST94_IDX;
611 : break;
612 : case SSL_GOST89MAC:
613 : i = SSL_MD_GOST89MAC_IDX;
614 : break;
615 : default:
616 : i = -1;
617 : break;
618 : }
619 737 : if ((i < 0) || (i >= SSL_MD_NUM_IDX)) {
620 737 : *md = NULL;
621 737 : if (mac_pkey_type != NULL)
622 737 : *mac_pkey_type = NID_undef;
623 737 : if (mac_secret_size != NULL)
624 737 : *mac_secret_size = 0;
625 737 : if (c->algorithm_mac == SSL_AEAD)
626 : mac_pkey_type = NULL;
627 : } else {
628 0 : *md = ssl_digest_methods[i];
629 0 : if (mac_pkey_type != NULL)
630 0 : *mac_pkey_type = ssl_mac_pkey_id[i];
631 0 : if (mac_secret_size != NULL)
632 0 : *mac_secret_size = ssl_mac_secret_size[i];
633 : }
634 :
635 1474 : if ((*enc != NULL) &&
636 1474 : (*md != NULL || (EVP_CIPHER_flags(*enc) & EVP_CIPH_FLAG_AEAD_CIPHER))
637 737 : && (!mac_pkey_type || *mac_pkey_type != NID_undef)) {
638 : const EVP_CIPHER *evp;
639 :
640 737 : if (s->ssl_version >> 8 != TLS1_VERSION_MAJOR ||
641 : s->ssl_version < TLS1_VERSION)
642 : return 1;
643 :
644 : #ifdef OPENSSL_FIPS
645 : if (FIPS_mode())
646 : return 1;
647 : #endif
648 :
649 737 : if (c->algorithm_enc == SSL_RC4 &&
650 0 : c->algorithm_mac == SSL_MD5 &&
651 : (evp = EVP_get_cipherbyname("RC4-HMAC-MD5")))
652 0 : *enc = evp, *md = NULL;
653 737 : else if (c->algorithm_enc == SSL_AES128 &&
654 0 : c->algorithm_mac == SSL_SHA1 &&
655 : (evp = EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA1")))
656 0 : *enc = evp, *md = NULL;
657 737 : else if (c->algorithm_enc == SSL_AES256 &&
658 0 : c->algorithm_mac == SSL_SHA1 &&
659 : (evp = EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA1")))
660 0 : *enc = evp, *md = NULL;
661 737 : else if (c->algorithm_enc == SSL_AES128 &&
662 0 : c->algorithm_mac == SSL_SHA256 &&
663 : (evp = EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA256")))
664 0 : *enc = evp, *md = NULL;
665 737 : else if (c->algorithm_enc == SSL_AES256 &&
666 0 : c->algorithm_mac == SSL_SHA256 &&
667 : (evp = EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA256")))
668 0 : *enc = evp, *md = NULL;
669 : return (1);
670 : } else
671 : return (0);
672 : }
673 :
674 72058 : int ssl_get_handshake_digest(int idx, long *mask, const EVP_MD **md)
675 : {
676 72058 : if (idx < 0 || idx >= SSL_MD_NUM_IDX) {
677 : return 0;
678 : }
679 61764 : *mask = ssl_handshake_digest_flag[idx];
680 61764 : if (*mask)
681 51470 : *md = ssl_digest_methods[idx];
682 : else
683 10294 : *md = NULL;
684 : return 1;
685 : }
686 :
687 : #define ITEM_SEP(a) \
688 : (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ','))
689 :
690 756896 : static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr,
691 : CIPHER_ORDER **tail)
692 : {
693 756896 : if (curr == *tail)
694 756896 : return;
695 756896 : if (curr == *head)
696 293864 : *head = curr->next;
697 756896 : if (curr->prev != NULL)
698 463032 : curr->prev->next = curr->next;
699 756896 : if (curr->next != NULL)
700 756896 : curr->next->prev = curr->prev;
701 756896 : (*tail)->next = curr;
702 756896 : curr->prev = *tail;
703 756896 : curr->next = NULL;
704 756896 : *tail = curr;
705 : }
706 :
707 273808 : static void ll_append_head(CIPHER_ORDER **head, CIPHER_ORDER *curr,
708 : CIPHER_ORDER **tail)
709 : {
710 273808 : if (curr == *head)
711 273808 : return;
712 273808 : if (curr == *tail)
713 273808 : *tail = curr->prev;
714 273808 : if (curr->next != NULL)
715 0 : curr->next->prev = curr->prev;
716 273808 : if (curr->prev != NULL)
717 273808 : curr->prev->next = curr->next;
718 273808 : (*head)->prev = curr;
719 273808 : curr->next = *head;
720 273808 : curr->prev = NULL;
721 273808 : *head = curr;
722 : }
723 :
724 1744 : static void ssl_cipher_get_disabled(unsigned long *mkey, unsigned long *auth,
725 : unsigned long *enc, unsigned long *mac,
726 : unsigned long *ssl)
727 : {
728 1744 : *mkey = 0;
729 1744 : *auth = 0;
730 1744 : *enc = 0;
731 1744 : *mac = 0;
732 1744 : *ssl = 0;
733 :
734 : #ifdef OPENSSL_NO_RSA
735 : *mkey |= SSL_kRSA;
736 : *auth |= SSL_aRSA;
737 : #endif
738 : #ifdef OPENSSL_NO_DSA
739 : *auth |= SSL_aDSS;
740 : #endif
741 : #ifdef OPENSSL_NO_DH
742 : *mkey |= SSL_kDHr | SSL_kDHd | SSL_kEDH;
743 : *auth |= SSL_aDH;
744 : #endif
745 : #ifdef OPENSSL_NO_KRB5
746 1744 : *mkey |= SSL_kKRB5;
747 1744 : *auth |= SSL_aKRB5;
748 : #endif
749 : #ifdef OPENSSL_NO_ECDSA
750 : *auth |= SSL_aECDSA;
751 : #endif
752 : #ifdef OPENSSL_NO_ECDH
753 : *mkey |= SSL_kECDHe | SSL_kECDHr;
754 : *auth |= SSL_aECDH;
755 : #endif
756 : #ifdef OPENSSL_NO_PSK
757 : *mkey |= SSL_kPSK;
758 : *auth |= SSL_aPSK;
759 : #endif
760 : #ifdef OPENSSL_NO_SRP
761 : *mkey |= SSL_kSRP;
762 : #endif
763 : /*
764 : * Check for presence of GOST 34.10 algorithms, and if they do not
765 : * present, disable appropriate auth and key exchange
766 : */
767 1744 : if (!get_optional_pkey_id("gost94")) {
768 1744 : *auth |= SSL_aGOST94;
769 : }
770 1744 : if (!get_optional_pkey_id("gost2001")) {
771 1744 : *auth |= SSL_aGOST01;
772 : }
773 : /*
774 : * Disable GOST key exchange if no GOST signature algs are available *
775 : */
776 1744 : if ((*auth & (SSL_aGOST94 | SSL_aGOST01)) == (SSL_aGOST94 | SSL_aGOST01)) {
777 1744 : *mkey |= SSL_kGOST;
778 : }
779 : #ifdef SSL_FORBID_ENULL
780 : *enc |= SSL_eNULL;
781 : #endif
782 :
783 1744 : *enc |= (ssl_cipher_methods[SSL_ENC_DES_IDX] == NULL) ? SSL_DES : 0;
784 1744 : *enc |= (ssl_cipher_methods[SSL_ENC_3DES_IDX] == NULL) ? SSL_3DES : 0;
785 1744 : *enc |= (ssl_cipher_methods[SSL_ENC_RC4_IDX] == NULL) ? SSL_RC4 : 0;
786 1744 : *enc |= (ssl_cipher_methods[SSL_ENC_RC2_IDX] == NULL) ? SSL_RC2 : 0;
787 1744 : *enc |= (ssl_cipher_methods[SSL_ENC_IDEA_IDX] == NULL) ? SSL_IDEA : 0;
788 1744 : *enc |= (ssl_cipher_methods[SSL_ENC_AES128_IDX] == NULL) ? SSL_AES128 : 0;
789 1744 : *enc |= (ssl_cipher_methods[SSL_ENC_AES256_IDX] == NULL) ? SSL_AES256 : 0;
790 1744 : *enc |=
791 1744 : (ssl_cipher_methods[SSL_ENC_AES128GCM_IDX] ==
792 : NULL) ? SSL_AES128GCM : 0;
793 1744 : *enc |=
794 1744 : (ssl_cipher_methods[SSL_ENC_AES256GCM_IDX] ==
795 : NULL) ? SSL_AES256GCM : 0;
796 1744 : *enc |=
797 1744 : (ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX] ==
798 : NULL) ? SSL_CAMELLIA128 : 0;
799 1744 : *enc |=
800 1744 : (ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX] ==
801 : NULL) ? SSL_CAMELLIA256 : 0;
802 1744 : *enc |=
803 1744 : (ssl_cipher_methods[SSL_ENC_GOST89_IDX] ==
804 : NULL) ? SSL_eGOST2814789CNT : 0;
805 1744 : *enc |= (ssl_cipher_methods[SSL_ENC_SEED_IDX] == NULL) ? SSL_SEED : 0;
806 :
807 1744 : *mac |= (ssl_digest_methods[SSL_MD_MD5_IDX] == NULL) ? SSL_MD5 : 0;
808 1744 : *mac |= (ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL) ? SSL_SHA1 : 0;
809 1744 : *mac |= (ssl_digest_methods[SSL_MD_SHA256_IDX] == NULL) ? SSL_SHA256 : 0;
810 1744 : *mac |= (ssl_digest_methods[SSL_MD_SHA384_IDX] == NULL) ? SSL_SHA384 : 0;
811 1744 : *mac |= (ssl_digest_methods[SSL_MD_GOST94_IDX] == NULL) ? SSL_GOST94 : 0;
812 3488 : *mac |= (ssl_digest_methods[SSL_MD_GOST89MAC_IDX] == NULL
813 0 : || ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX] ==
814 : NID_undef) ? SSL_GOST89MAC : 0;
815 :
816 1744 : }
817 :
818 1744 : static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method,
819 : int num_of_ciphers,
820 : unsigned long disabled_mkey,
821 : unsigned long disabled_auth,
822 : unsigned long disabled_enc,
823 : unsigned long disabled_mac,
824 : unsigned long disabled_ssl,
825 : CIPHER_ORDER *co_list,
826 : CIPHER_ORDER **head_p,
827 : CIPHER_ORDER **tail_p)
828 : {
829 : int i, co_list_num;
830 : const SSL_CIPHER *c;
831 :
832 : /*
833 : * We have num_of_ciphers descriptions compiled in, depending on the
834 : * method selected (SSLv2 and/or SSLv3, TLSv1 etc).
835 : * These will later be sorted in a linked list with at most num
836 : * entries.
837 : */
838 :
839 : /* Get the initial list of ciphers */
840 : co_list_num = 0; /* actual count of ciphers */
841 244160 : for (i = 0; i < num_of_ciphers; i++) {
842 244160 : c = ssl_method->get_cipher(i);
843 : /* drop those that use any of that is not available */
844 484832 : if ((c != NULL) && c->valid &&
845 : #ifdef OPENSSL_FIPS
846 : (!FIPS_mode() || (c->algo_strength & SSL_FIPS)) &&
847 : #endif
848 474368 : !(c->algorithm_mkey & disabled_mkey) &&
849 467392 : !(c->algorithm_auth & disabled_auth) &&
850 467392 : !(c->algorithm_enc & disabled_enc) &&
851 467392 : !(c->algorithm_mac & disabled_mac) &&
852 233696 : !(c->algorithm_ssl & disabled_ssl)) {
853 233696 : co_list[co_list_num].cipher = c;
854 233696 : co_list[co_list_num].next = NULL;
855 233696 : co_list[co_list_num].prev = NULL;
856 233696 : co_list[co_list_num].active = 0;
857 233696 : co_list_num++;
858 : #ifdef KSSL_DEBUG
859 : fprintf(stderr, "\t%d: %s %lx %lx %lx\n", i, c->name, c->id,
860 : c->algorithm_mkey, c->algorithm_auth);
861 : #endif /* KSSL_DEBUG */
862 : /*
863 : * if (!sk_push(ca_list,(char *)c)) goto err;
864 : */
865 : }
866 : }
867 :
868 : /*
869 : * Prepare linked list from list entries
870 : */
871 1744 : if (co_list_num > 0) {
872 1744 : co_list[0].prev = NULL;
873 :
874 1744 : if (co_list_num > 1) {
875 1744 : co_list[0].next = &co_list[1];
876 :
877 230208 : for (i = 1; i < co_list_num - 1; i++) {
878 230208 : co_list[i].prev = &co_list[i - 1];
879 230208 : co_list[i].next = &co_list[i + 1];
880 : }
881 :
882 1744 : co_list[co_list_num - 1].prev = &co_list[co_list_num - 2];
883 : }
884 :
885 1744 : co_list[co_list_num - 1].next = NULL;
886 :
887 1744 : *head_p = &co_list[0];
888 1744 : *tail_p = &co_list[co_list_num - 1];
889 : }
890 1744 : }
891 :
892 1744 : static void ssl_cipher_collect_aliases(const SSL_CIPHER **ca_list,
893 : int num_of_group_aliases,
894 : unsigned long disabled_mkey,
895 : unsigned long disabled_auth,
896 : unsigned long disabled_enc,
897 : unsigned long disabled_mac,
898 : unsigned long disabled_ssl,
899 : CIPHER_ORDER *head)
900 : {
901 : CIPHER_ORDER *ciph_curr;
902 : const SSL_CIPHER **ca_curr;
903 : int i;
904 1744 : unsigned long mask_mkey = ~disabled_mkey;
905 1744 : unsigned long mask_auth = ~disabled_auth;
906 1744 : unsigned long mask_enc = ~disabled_enc;
907 1744 : unsigned long mask_mac = ~disabled_mac;
908 1744 : unsigned long mask_ssl = ~disabled_ssl;
909 :
910 : /*
911 : * First, add the real ciphers as already collected
912 : */
913 : ciph_curr = head;
914 : ca_curr = ca_list;
915 237184 : while (ciph_curr != NULL) {
916 233696 : *ca_curr = ciph_curr->cipher;
917 233696 : ca_curr++;
918 233696 : ciph_curr = ciph_curr->next;
919 : }
920 :
921 : /*
922 : * Now we add the available ones from the cipher_aliases[] table.
923 : * They represent either one or more algorithms, some of which
924 : * in any affected category must be supported (set in enabled_mask),
925 : * or represent a cipher strength value (will be added in any case because algorithms=0).
926 : */
927 146496 : for (i = 0; i < num_of_group_aliases; i++) {
928 146496 : unsigned long algorithm_mkey = cipher_aliases[i].algorithm_mkey;
929 146496 : unsigned long algorithm_auth = cipher_aliases[i].algorithm_auth;
930 146496 : unsigned long algorithm_enc = cipher_aliases[i].algorithm_enc;
931 146496 : unsigned long algorithm_mac = cipher_aliases[i].algorithm_mac;
932 146496 : unsigned long algorithm_ssl = cipher_aliases[i].algorithm_ssl;
933 :
934 146496 : if (algorithm_mkey)
935 57552 : if ((algorithm_mkey & mask_mkey) == 0)
936 5232 : continue;
937 :
938 141264 : if (algorithm_auth)
939 50576 : if ((algorithm_auth & mask_auth) == 0)
940 6976 : continue;
941 :
942 134288 : if (algorithm_enc)
943 43600 : if ((algorithm_enc & mask_enc) == 0)
944 0 : continue;
945 :
946 134288 : if (algorithm_mac)
947 22672 : if ((algorithm_mac & mask_mac) == 0)
948 3488 : continue;
949 :
950 130800 : if (algorithm_ssl)
951 19184 : if ((algorithm_ssl & mask_ssl) == 0)
952 0 : continue;
953 :
954 130800 : *ca_curr = (SSL_CIPHER *)(cipher_aliases + i);
955 130800 : ca_curr++;
956 : }
957 :
958 1744 : *ca_curr = NULL; /* end of list */
959 1744 : }
960 :
961 39240 : static void ssl_cipher_apply_rule(unsigned long cipher_id,
962 : unsigned long alg_mkey,
963 : unsigned long alg_auth,
964 : unsigned long alg_enc,
965 : unsigned long alg_mac,
966 : unsigned long alg_ssl,
967 : unsigned long algo_strength, int rule,
968 : int strength_bits, CIPHER_ORDER **head_p,
969 : CIPHER_ORDER **tail_p)
970 : {
971 : CIPHER_ORDER *head, *tail, *curr, *next, *last;
972 : const SSL_CIPHER *cp;
973 : int reverse = 0;
974 :
975 : #ifdef CIPHER_DEBUG
976 : fprintf(stderr,
977 : "Applying rule %d with %08lx/%08lx/%08lx/%08lx/%08lx %08lx (%d)\n",
978 : rule, alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl,
979 : algo_strength, strength_bits);
980 : #endif
981 :
982 39240 : if (rule == CIPHER_DEL)
983 : reverse = 1; /* needed to maintain sorting between
984 : * currently deleted ciphers */
985 :
986 39240 : head = *head_p;
987 39240 : tail = *tail_p;
988 :
989 39240 : if (reverse) {
990 : next = tail;
991 : last = head;
992 : } else {
993 : next = head;
994 : last = tail;
995 : }
996 :
997 : curr = NULL;
998 : for (;;) {
999 5243336 : if (curr == last)
1000 : break;
1001 :
1002 : curr = next;
1003 :
1004 5204096 : if (curr == NULL)
1005 : break;
1006 :
1007 5204096 : next = reverse ? curr->prev : curr->next;
1008 :
1009 5204096 : cp = curr->cipher;
1010 :
1011 : /*
1012 : * Selection criteria is either the value of strength_bits
1013 : * or the algorithms used.
1014 : */
1015 5204096 : if (strength_bits >= 0) {
1016 1402176 : if (strength_bits != cp->strength_bits)
1017 1168480 : continue;
1018 : } else {
1019 : #ifdef CIPHER_DEBUG
1020 : fprintf(stderr,
1021 : "\nName: %s:\nAlgo = %08lx/%08lx/%08lx/%08lx/%08lx Algo_strength = %08lx\n",
1022 : cp->name, cp->algorithm_mkey, cp->algorithm_auth,
1023 : cp->algorithm_enc, cp->algorithm_mac, cp->algorithm_ssl,
1024 : cp->algo_strength);
1025 : #endif
1026 : #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1027 : if (cipher_id && cipher_id != cp->id)
1028 : continue;
1029 : #endif
1030 3801920 : if (algo_strength == SSL_EXP_MASK && SSL_C_IS_EXPORT(cp))
1031 : goto ok;
1032 3801920 : if (alg_ssl == ~SSL_SSLV2 && cp->algorithm_ssl == SSL_SSLV2)
1033 : goto ok;
1034 3801920 : if (alg_mkey && !(alg_mkey & cp->algorithm_mkey))
1035 1433568 : continue;
1036 2368352 : if (alg_auth && !(alg_auth & cp->algorithm_auth))
1037 547616 : continue;
1038 1820736 : if (alg_enc && !(alg_enc & cp->algorithm_enc))
1039 449080 : continue;
1040 1371656 : if (alg_mac && !(alg_mac & cp->algorithm_mac))
1041 224976 : continue;
1042 1146680 : if (alg_ssl && !(alg_ssl & cp->algorithm_ssl))
1043 89816 : continue;
1044 1056864 : if ((algo_strength & SSL_EXP_MASK)
1045 120336 : && !(algo_strength & SSL_EXP_MASK & cp->algo_strength))
1046 110744 : continue;
1047 946120 : if ((algo_strength & SSL_STRONG_MASK)
1048 3488 : && !(algo_strength & SSL_STRONG_MASK & cp->algo_strength))
1049 0 : continue;
1050 : }
1051 :
1052 : ok:
1053 :
1054 : #ifdef CIPHER_DEBUG
1055 : fprintf(stderr, "Action = %d\n", rule);
1056 : #endif
1057 :
1058 : /* add the cipher if it has not been added yet. */
1059 1179816 : if (rule == CIPHER_ADD) {
1060 : /* reverse == 0 */
1061 509248 : if (!curr->active) {
1062 387168 : ll_append_tail(&head, curr, &tail);
1063 387168 : curr->active = 1;
1064 : }
1065 : }
1066 : /* Move the added cipher to this location */
1067 670568 : else if (rule == CIPHER_ORD) {
1068 : /* reverse == 0 */
1069 369728 : if (curr->active) {
1070 369728 : ll_append_tail(&head, curr, &tail);
1071 : }
1072 300840 : } else if (rule == CIPHER_DEL) {
1073 : /* reverse == 1 */
1074 273808 : if (curr->active) {
1075 : /*
1076 : * most recently deleted ciphersuites get best positions for
1077 : * any future CIPHER_ADD (note that the CIPHER_DEL loop works
1078 : * in reverse to maintain the order)
1079 : */
1080 273808 : ll_append_head(&head, curr, &tail);
1081 273808 : curr->active = 0;
1082 : }
1083 27032 : } else if (rule == CIPHER_KILL) {
1084 : /* reverse == 0 */
1085 27032 : if (head == curr)
1086 6104 : head = curr->next;
1087 : else
1088 20928 : curr->prev->next = curr->next;
1089 27032 : if (tail == curr)
1090 872 : tail = curr->prev;
1091 27032 : curr->active = 0;
1092 27032 : if (curr->next != NULL)
1093 26160 : curr->next->prev = curr->prev;
1094 27032 : if (curr->prev != NULL)
1095 20928 : curr->prev->next = curr->next;
1096 27032 : curr->next = NULL;
1097 27032 : curr->prev = NULL;
1098 : }
1099 : }
1100 :
1101 39240 : *head_p = head;
1102 39240 : *tail_p = tail;
1103 39240 : }
1104 :
1105 1744 : static int ssl_cipher_strength_sort(CIPHER_ORDER **head_p,
1106 : CIPHER_ORDER **tail_p)
1107 : {
1108 : int max_strength_bits, i, *number_uses;
1109 : CIPHER_ORDER *curr;
1110 :
1111 : /*
1112 : * This routine sorts the ciphers with descending strength. The sorting
1113 : * must keep the pre-sorted sequence, so we apply the normal sorting
1114 : * routine as '+' movement to the end of the list.
1115 : */
1116 : max_strength_bits = 0;
1117 1744 : curr = *head_p;
1118 237184 : while (curr != NULL) {
1119 233696 : if (curr->active && (curr->cipher->strength_bits > max_strength_bits))
1120 : max_strength_bits = curr->cipher->strength_bits;
1121 233696 : curr = curr->next;
1122 : }
1123 :
1124 1744 : number_uses = OPENSSL_malloc((max_strength_bits + 1) * sizeof(int));
1125 1744 : if (!number_uses) {
1126 0 : SSLerr(SSL_F_SSL_CIPHER_STRENGTH_SORT, ERR_R_MALLOC_FAILURE);
1127 0 : return (0);
1128 : }
1129 1744 : memset(number_uses, 0, (max_strength_bits + 1) * sizeof(int));
1130 :
1131 : /*
1132 : * Now find the strength_bits values actually used
1133 : */
1134 1744 : curr = *head_p;
1135 237184 : while (curr != NULL) {
1136 233696 : if (curr->active)
1137 233696 : number_uses[curr->cipher->strength_bits]++;
1138 233696 : curr = curr->next;
1139 : }
1140 : /*
1141 : * Go through the list of used strength_bits values in descending
1142 : * order.
1143 : */
1144 448208 : for (i = max_strength_bits; i >= 0; i--)
1145 448208 : if (number_uses[i] > 0)
1146 10464 : ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ORD, i, head_p,
1147 : tail_p);
1148 :
1149 1744 : OPENSSL_free(number_uses);
1150 1744 : return (1);
1151 : }
1152 :
1153 1744 : static int ssl_cipher_process_rulestr(const char *rule_str,
1154 : CIPHER_ORDER **head_p,
1155 : CIPHER_ORDER **tail_p,
1156 : const SSL_CIPHER **ca_list)
1157 : {
1158 : unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl,
1159 : algo_strength;
1160 : const char *l, *buf;
1161 : int j, multi, found, rule, retval, ok, buflen;
1162 : unsigned long cipher_id = 0;
1163 : char ch;
1164 :
1165 : retval = 1;
1166 : l = rule_str;
1167 : for (;;) {
1168 13952 : ch = *l;
1169 :
1170 13952 : if (ch == '\0')
1171 : break; /* done */
1172 13952 : if (ch == '-') {
1173 : rule = CIPHER_DEL;
1174 0 : l++;
1175 13952 : } else if (ch == '+') {
1176 : rule = CIPHER_ORD;
1177 0 : l++;
1178 13952 : } else if (ch == '!') {
1179 : rule = CIPHER_KILL;
1180 3488 : l++;
1181 10464 : } else if (ch == '@') {
1182 : rule = CIPHER_SPECIAL;
1183 0 : l++;
1184 : } else {
1185 : rule = CIPHER_ADD;
1186 : }
1187 :
1188 13952 : if (ITEM_SEP(ch)) {
1189 6104 : l++;
1190 6104 : continue;
1191 : }
1192 :
1193 : alg_mkey = 0;
1194 : alg_auth = 0;
1195 : alg_enc = 0;
1196 : alg_mac = 0;
1197 : alg_ssl = 0;
1198 : algo_strength = 0;
1199 :
1200 : for (;;) {
1201 7848 : ch = *l;
1202 : buf = l;
1203 : buflen = 0;
1204 : #ifndef CHARSET_EBCDIC
1205 239800 : while (((ch >= 'A') && (ch <= 'Z')) ||
1206 138648 : ((ch >= '0') && (ch <= '9')) ||
1207 42728 : ((ch >= 'a') && (ch <= 'z')) || (ch == '-') || (ch == '.'))
1208 : #else
1209 : while (isalnum(ch) || (ch == '-') || (ch == '.'))
1210 : #endif
1211 : {
1212 108128 : ch = *(++l);
1213 108128 : buflen++;
1214 : }
1215 :
1216 7848 : if (buflen == 0) {
1217 : /*
1218 : * We hit something we cannot deal with,
1219 : * it is no command or separator nor
1220 : * alphanumeric, so we call this an error.
1221 : */
1222 0 : SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
1223 : SSL_R_INVALID_COMMAND);
1224 : retval = found = 0;
1225 0 : l++;
1226 0 : break;
1227 : }
1228 :
1229 7848 : if (rule == CIPHER_SPECIAL) {
1230 : found = 0; /* unused -- avoid compiler warning */
1231 : break; /* special treatment */
1232 : }
1233 :
1234 : /* check for multi-part specification */
1235 7848 : if (ch == '+') {
1236 : multi = 1;
1237 0 : l++;
1238 : } else
1239 : multi = 0;
1240 :
1241 : /*
1242 : * Now search for the cipher alias in the ca_list. Be careful
1243 : * with the strncmp, because the "buflen" limitation
1244 : * will make the rule "ADH:SOME" and the cipher
1245 : * "ADH-MY-CIPHER" look like a match for buflen=3.
1246 : * So additionally check whether the cipher name found
1247 : * has the correct length. We can save a strlen() call:
1248 : * just checking for the '\0' at the right place is
1249 : * sufficient, we have to strncmp() anyway. (We cannot
1250 : * use strcmp(), because buf is not '\0' terminated.)
1251 : */
1252 : j = found = 0;
1253 : cipher_id = 0;
1254 835376 : while (ca_list[j]) {
1255 835376 : if (!strncmp(buf, ca_list[j]->name, buflen) &&
1256 7848 : (ca_list[j]->name[buflen] == '\0')) {
1257 : found = 1;
1258 : break;
1259 : } else
1260 819680 : j++;
1261 : }
1262 :
1263 7848 : if (!found)
1264 : break; /* ignore this entry */
1265 :
1266 7848 : if (ca_list[j]->algorithm_mkey) {
1267 3488 : if (alg_mkey) {
1268 0 : alg_mkey &= ca_list[j]->algorithm_mkey;
1269 0 : if (!alg_mkey) {
1270 : found = 0;
1271 : break;
1272 : }
1273 : } else
1274 : alg_mkey = ca_list[j]->algorithm_mkey;
1275 : }
1276 :
1277 7848 : if (ca_list[j]->algorithm_auth) {
1278 4360 : if (alg_auth) {
1279 0 : alg_auth &= ca_list[j]->algorithm_auth;
1280 0 : if (!alg_auth) {
1281 : found = 0;
1282 : break;
1283 : }
1284 : } else
1285 : alg_auth = ca_list[j]->algorithm_auth;
1286 : }
1287 :
1288 7848 : if (ca_list[j]->algorithm_enc) {
1289 5232 : if (alg_enc) {
1290 0 : alg_enc &= ca_list[j]->algorithm_enc;
1291 0 : if (!alg_enc) {
1292 : found = 0;
1293 : break;
1294 : }
1295 : } else
1296 : alg_enc = ca_list[j]->algorithm_enc;
1297 : }
1298 :
1299 7848 : if (ca_list[j]->algorithm_mac) {
1300 3488 : if (alg_mac) {
1301 0 : alg_mac &= ca_list[j]->algorithm_mac;
1302 0 : if (!alg_mac) {
1303 : found = 0;
1304 : break;
1305 : }
1306 : } else
1307 : alg_mac = ca_list[j]->algorithm_mac;
1308 : }
1309 :
1310 7848 : if (ca_list[j]->algo_strength & SSL_EXP_MASK) {
1311 4360 : if (algo_strength & SSL_EXP_MASK) {
1312 0 : algo_strength &=
1313 0 : (ca_list[j]->algo_strength & SSL_EXP_MASK) |
1314 : ~SSL_EXP_MASK;
1315 0 : if (!(algo_strength & SSL_EXP_MASK)) {
1316 : found = 0;
1317 : break;
1318 : }
1319 : } else
1320 4360 : algo_strength |= ca_list[j]->algo_strength & SSL_EXP_MASK;
1321 : }
1322 :
1323 7848 : if (ca_list[j]->algo_strength & SSL_STRONG_MASK) {
1324 3488 : if (algo_strength & SSL_STRONG_MASK) {
1325 0 : algo_strength &=
1326 0 : (ca_list[j]->algo_strength & SSL_STRONG_MASK) |
1327 : ~SSL_STRONG_MASK;
1328 0 : if (!(algo_strength & SSL_STRONG_MASK)) {
1329 : found = 0;
1330 : break;
1331 : }
1332 : } else
1333 3488 : algo_strength |=
1334 : ca_list[j]->algo_strength & SSL_STRONG_MASK;
1335 : }
1336 :
1337 7848 : if (ca_list[j]->valid) {
1338 : /*
1339 : * explicit ciphersuite found; its protocol version does not
1340 : * become part of the search pattern!
1341 : */
1342 :
1343 : cipher_id = ca_list[j]->id;
1344 : } else {
1345 : /*
1346 : * not an explicit ciphersuite; only in this case, the
1347 : * protocol version is considered part of the search pattern
1348 : */
1349 :
1350 4360 : if (ca_list[j]->algorithm_ssl) {
1351 872 : if (alg_ssl) {
1352 0 : alg_ssl &= ca_list[j]->algorithm_ssl;
1353 0 : if (!alg_ssl) {
1354 : found = 0;
1355 : break;
1356 : }
1357 : } else
1358 : alg_ssl = ca_list[j]->algorithm_ssl;
1359 : }
1360 : }
1361 :
1362 7848 : if (!multi)
1363 : break;
1364 : }
1365 :
1366 : /*
1367 : * Ok, we have the rule, now apply it
1368 : */
1369 7848 : if (rule == CIPHER_SPECIAL) { /* special command */
1370 : ok = 0;
1371 0 : if ((buflen == 8) && !strncmp(buf, "STRENGTH", 8))
1372 0 : ok = ssl_cipher_strength_sort(head_p, tail_p);
1373 : else
1374 0 : SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
1375 : SSL_R_INVALID_COMMAND);
1376 0 : if (ok == 0)
1377 : retval = 0;
1378 : /*
1379 : * We do not support any "multi" options
1380 : * together with "@", so throw away the
1381 : * rest of the command, if any left, until
1382 : * end or ':' is found.
1383 : */
1384 0 : while ((*l != '\0') && !ITEM_SEP(*l))
1385 0 : l++;
1386 7848 : } else if (found) {
1387 7848 : ssl_cipher_apply_rule(cipher_id,
1388 : alg_mkey, alg_auth, alg_enc, alg_mac,
1389 : alg_ssl, algo_strength, rule, -1, head_p,
1390 : tail_p);
1391 : } else {
1392 0 : while ((*l != '\0') && !ITEM_SEP(*l))
1393 0 : l++;
1394 : }
1395 7848 : if (*l == '\0')
1396 : break; /* done */
1397 : }
1398 :
1399 1744 : return (retval);
1400 : }
1401 :
1402 : #ifndef OPENSSL_NO_EC
1403 1744 : static int check_suiteb_cipher_list(const SSL_METHOD *meth, CERT *c,
1404 : const char **prule_str)
1405 : {
1406 : unsigned int suiteb_flags = 0, suiteb_comb2 = 0;
1407 1744 : if (!strcmp(*prule_str, "SUITEB128"))
1408 : suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS;
1409 1744 : else if (!strcmp(*prule_str, "SUITEB128ONLY"))
1410 : suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS_ONLY;
1411 1744 : else if (!strcmp(*prule_str, "SUITEB128C2")) {
1412 : suiteb_comb2 = 1;
1413 : suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS;
1414 1744 : } else if (!strcmp(*prule_str, "SUITEB192"))
1415 : suiteb_flags = SSL_CERT_FLAG_SUITEB_192_LOS;
1416 :
1417 1744 : if (suiteb_flags) {
1418 0 : c->cert_flags &= ~SSL_CERT_FLAG_SUITEB_128_LOS;
1419 0 : c->cert_flags |= suiteb_flags;
1420 : } else
1421 1744 : suiteb_flags = c->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS;
1422 :
1423 1744 : if (!suiteb_flags)
1424 : return 1;
1425 : /* Check version: if TLS 1.2 ciphers allowed we can use Suite B */
1426 :
1427 0 : if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)) {
1428 0 : if (meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
1429 0 : SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST,
1430 : SSL_R_ONLY_DTLS_1_2_ALLOWED_IN_SUITEB_MODE);
1431 : else
1432 0 : SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST,
1433 : SSL_R_ONLY_TLS_1_2_ALLOWED_IN_SUITEB_MODE);
1434 : return 0;
1435 : }
1436 : # ifndef OPENSSL_NO_ECDH
1437 0 : switch (suiteb_flags) {
1438 : case SSL_CERT_FLAG_SUITEB_128_LOS:
1439 0 : if (suiteb_comb2)
1440 0 : *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384";
1441 : else
1442 0 : *prule_str =
1443 : "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384";
1444 : break;
1445 : case SSL_CERT_FLAG_SUITEB_128_LOS_ONLY:
1446 0 : *prule_str = "ECDHE-ECDSA-AES128-GCM-SHA256";
1447 : break;
1448 : case SSL_CERT_FLAG_SUITEB_192_LOS:
1449 0 : *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384";
1450 : break;
1451 : }
1452 : /* Set auto ECDH parameter determination */
1453 0 : c->ecdh_tmp_auto = 1;
1454 : return 1;
1455 : # else
1456 : SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST,
1457 : SSL_R_ECDH_REQUIRED_FOR_SUITEB_MODE);
1458 : return 0;
1459 : # endif
1460 : }
1461 : #endif
1462 :
1463 1744 : STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method, STACK_OF(SSL_CIPHER)
1464 : **cipher_list, STACK_OF(SSL_CIPHER)
1465 : **cipher_list_by_id,
1466 : const char *rule_str, CERT *c)
1467 : {
1468 : int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases;
1469 : unsigned long disabled_mkey, disabled_auth, disabled_enc, disabled_mac,
1470 : disabled_ssl;
1471 : STACK_OF(SSL_CIPHER) *cipherstack, *tmp_cipher_list;
1472 : const char *rule_p;
1473 1744 : CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr;
1474 : const SSL_CIPHER **ca_list = NULL;
1475 :
1476 : /*
1477 : * Return with error if nothing to do.
1478 : */
1479 1744 : if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL)
1480 : return NULL;
1481 : #ifndef OPENSSL_NO_EC
1482 1744 : if (!check_suiteb_cipher_list(ssl_method, c, &rule_str))
1483 : return NULL;
1484 : #endif
1485 :
1486 : /*
1487 : * To reduce the work to do we only want to process the compiled
1488 : * in algorithms, so we first get the mask of disabled ciphers.
1489 : */
1490 1744 : ssl_cipher_get_disabled(&disabled_mkey, &disabled_auth, &disabled_enc,
1491 : &disabled_mac, &disabled_ssl);
1492 :
1493 : /*
1494 : * Now we have to collect the available ciphers from the compiled
1495 : * in ciphers. We cannot get more than the number compiled in, so
1496 : * it is used for allocation.
1497 : */
1498 1744 : num_of_ciphers = ssl_method->num_ciphers();
1499 : #ifdef KSSL_DEBUG
1500 : fprintf(stderr, "ssl_create_cipher_list() for %d ciphers\n",
1501 : num_of_ciphers);
1502 : #endif /* KSSL_DEBUG */
1503 1744 : co_list =
1504 1744 : (CIPHER_ORDER *)OPENSSL_malloc(sizeof(CIPHER_ORDER) * num_of_ciphers);
1505 1744 : if (co_list == NULL) {
1506 0 : SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
1507 0 : return (NULL); /* Failure */
1508 : }
1509 :
1510 1744 : ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers,
1511 : disabled_mkey, disabled_auth, disabled_enc,
1512 : disabled_mac, disabled_ssl, co_list, &head,
1513 : &tail);
1514 :
1515 : /* Now arrange all ciphers by preference: */
1516 :
1517 : /*
1518 : * Everything else being equal, prefer ephemeral ECDH over other key
1519 : * exchange mechanisms
1520 : */
1521 1744 : ssl_cipher_apply_rule(0, SSL_kEECDH, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head,
1522 : &tail);
1523 1744 : ssl_cipher_apply_rule(0, SSL_kEECDH, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head,
1524 : &tail);
1525 :
1526 : /* AES is our preferred symmetric cipher */
1527 1744 : ssl_cipher_apply_rule(0, 0, 0, SSL_AES, 0, 0, 0, CIPHER_ADD, -1, &head,
1528 : &tail);
1529 :
1530 : /* Temporarily enable everything else for sorting */
1531 1744 : ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail);
1532 :
1533 : /* Low priority for MD5 */
1534 1744 : ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5, 0, 0, CIPHER_ORD, -1, &head,
1535 : &tail);
1536 :
1537 : /*
1538 : * Move anonymous ciphers to the end. Usually, these will remain
1539 : * disabled. (For applications that allow them, they aren't too bad, but
1540 : * we prefer authenticated ciphers.)
1541 : */
1542 1744 : ssl_cipher_apply_rule(0, 0, SSL_aNULL, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
1543 : &tail);
1544 :
1545 : /* Move ciphers without forward secrecy to the end */
1546 1744 : ssl_cipher_apply_rule(0, 0, SSL_aECDH, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
1547 : &tail);
1548 : /*
1549 : * ssl_cipher_apply_rule(0, 0, SSL_aDH, 0, 0, 0, 0, CIPHER_ORD, -1,
1550 : * &head, &tail);
1551 : */
1552 1744 : ssl_cipher_apply_rule(0, SSL_kRSA, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
1553 : &tail);
1554 1744 : ssl_cipher_apply_rule(0, SSL_kPSK, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
1555 : &tail);
1556 1744 : ssl_cipher_apply_rule(0, SSL_kKRB5, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
1557 : &tail);
1558 :
1559 : /* RC4 is sort-of broken -- move the the end */
1560 1744 : ssl_cipher_apply_rule(0, 0, 0, SSL_RC4, 0, 0, 0, CIPHER_ORD, -1, &head,
1561 : &tail);
1562 :
1563 : /*
1564 : * Now sort by symmetric encryption strength. The above ordering remains
1565 : * in force within each class
1566 : */
1567 1744 : if (!ssl_cipher_strength_sort(&head, &tail)) {
1568 0 : OPENSSL_free(co_list);
1569 0 : return NULL;
1570 : }
1571 :
1572 : /* Now disable everything (maintaining the ordering!) */
1573 1744 : ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail);
1574 :
1575 : /*
1576 : * We also need cipher aliases for selecting based on the rule_str.
1577 : * There might be two types of entries in the rule_str: 1) names
1578 : * of ciphers themselves 2) aliases for groups of ciphers.
1579 : * For 1) we need the available ciphers and for 2) the cipher
1580 : * groups of cipher_aliases added together in one list (otherwise
1581 : * we would be happy with just the cipher_aliases table).
1582 : */
1583 : num_of_group_aliases = sizeof(cipher_aliases) / sizeof(SSL_CIPHER);
1584 1744 : num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1;
1585 1744 : ca_list = OPENSSL_malloc(sizeof(SSL_CIPHER *) * num_of_alias_max);
1586 1744 : if (ca_list == NULL) {
1587 0 : OPENSSL_free(co_list);
1588 0 : SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
1589 0 : return (NULL); /* Failure */
1590 : }
1591 1744 : ssl_cipher_collect_aliases(ca_list, num_of_group_aliases,
1592 : disabled_mkey, disabled_auth, disabled_enc,
1593 : disabled_mac, disabled_ssl, head);
1594 :
1595 : /*
1596 : * If the rule_string begins with DEFAULT, apply the default rule
1597 : * before using the (possibly available) additional rules.
1598 : */
1599 : ok = 1;
1600 1744 : rule_p = rule_str;
1601 1744 : if (strncmp(rule_str, "DEFAULT", 7) == 0) {
1602 0 : ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST,
1603 : &head, &tail, ca_list);
1604 0 : rule_p += 7;
1605 0 : if (*rule_p == ':')
1606 0 : rule_p++;
1607 : }
1608 :
1609 1744 : if (ok && (strlen(rule_p) > 0))
1610 1744 : ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list);
1611 :
1612 1744 : OPENSSL_free((void *)ca_list); /* Not needed anymore */
1613 :
1614 1744 : if (!ok) { /* Rule processing failure */
1615 0 : OPENSSL_free(co_list);
1616 0 : return (NULL);
1617 : }
1618 :
1619 : /*
1620 : * Allocate new "cipherstack" for the result, return with error
1621 : * if we cannot get one.
1622 : */
1623 1744 : if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL) {
1624 0 : OPENSSL_free(co_list);
1625 0 : return (NULL);
1626 : }
1627 :
1628 : /*
1629 : * The cipher selection for the list is done. The ciphers are added
1630 : * to the resulting precedence to the STACK_OF(SSL_CIPHER).
1631 : */
1632 208408 : for (curr = head; curr != NULL; curr = curr->next) {
1633 : #ifdef OPENSSL_FIPS
1634 : if (curr->active
1635 : && (!FIPS_mode() || curr->cipher->algo_strength & SSL_FIPS))
1636 : #else
1637 206664 : if (curr->active)
1638 : #endif
1639 : {
1640 93304 : sk_SSL_CIPHER_push(cipherstack, curr->cipher);
1641 : #ifdef CIPHER_DEBUG
1642 : fprintf(stderr, "<%s>\n", curr->cipher->name);
1643 : #endif
1644 : }
1645 : }
1646 1744 : OPENSSL_free(co_list); /* Not needed any longer */
1647 :
1648 1744 : tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack);
1649 1744 : if (tmp_cipher_list == NULL) {
1650 0 : sk_SSL_CIPHER_free(cipherstack);
1651 0 : return NULL;
1652 : }
1653 1744 : if (*cipher_list != NULL)
1654 872 : sk_SSL_CIPHER_free(*cipher_list);
1655 1744 : *cipher_list = cipherstack;
1656 1744 : if (*cipher_list_by_id != NULL)
1657 872 : sk_SSL_CIPHER_free(*cipher_list_by_id);
1658 1744 : *cipher_list_by_id = tmp_cipher_list;
1659 1744 : (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id,
1660 : ssl_cipher_ptr_id_cmp);
1661 :
1662 1744 : sk_SSL_CIPHER_sort(*cipher_list_by_id);
1663 1744 : return (cipherstack);
1664 : }
1665 :
1666 0 : char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len)
1667 : {
1668 : int is_export, pkl, kl;
1669 : const char *ver, *exp_str;
1670 : const char *kx, *au, *enc, *mac;
1671 : unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, alg2;
1672 : #ifdef KSSL_DEBUG
1673 : static const char *format =
1674 : "%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s AL=%lx/%lx/%lx/%lx/%lx\n";
1675 : #else
1676 : static const char *format =
1677 : "%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n";
1678 : #endif /* KSSL_DEBUG */
1679 :
1680 0 : alg_mkey = cipher->algorithm_mkey;
1681 0 : alg_auth = cipher->algorithm_auth;
1682 0 : alg_enc = cipher->algorithm_enc;
1683 0 : alg_mac = cipher->algorithm_mac;
1684 0 : alg_ssl = cipher->algorithm_ssl;
1685 :
1686 0 : alg2 = cipher->algorithm2;
1687 :
1688 0 : is_export = SSL_C_IS_EXPORT(cipher);
1689 0 : pkl = SSL_C_EXPORT_PKEYLENGTH(cipher);
1690 0 : kl = SSL_C_EXPORT_KEYLENGTH(cipher);
1691 0 : exp_str = is_export ? " export" : "";
1692 :
1693 0 : if (alg_ssl & SSL_SSLV2)
1694 : ver = "SSLv2";
1695 0 : else if (alg_ssl & SSL_SSLV3)
1696 : ver = "SSLv3";
1697 0 : else if (alg_ssl & SSL_TLSV1_2)
1698 : ver = "TLSv1.2";
1699 : else
1700 : ver = "unknown";
1701 :
1702 0 : switch (alg_mkey) {
1703 : case SSL_kRSA:
1704 0 : kx = is_export ? (pkl == 512 ? "RSA(512)" : "RSA(1024)") : "RSA";
1705 0 : break;
1706 : case SSL_kDHr:
1707 : kx = "DH/RSA";
1708 : break;
1709 : case SSL_kDHd:
1710 : kx = "DH/DSS";
1711 0 : break;
1712 : case SSL_kKRB5:
1713 : kx = "KRB5";
1714 0 : break;
1715 : case SSL_kEDH:
1716 0 : kx = is_export ? (pkl == 512 ? "DH(512)" : "DH(1024)") : "DH";
1717 0 : break;
1718 : case SSL_kECDHr:
1719 : kx = "ECDH/RSA";
1720 0 : break;
1721 : case SSL_kECDHe:
1722 : kx = "ECDH/ECDSA";
1723 0 : break;
1724 : case SSL_kEECDH:
1725 : kx = "ECDH";
1726 0 : break;
1727 : case SSL_kPSK:
1728 : kx = "PSK";
1729 0 : break;
1730 : case SSL_kSRP:
1731 : kx = "SRP";
1732 0 : break;
1733 : case SSL_kGOST:
1734 : kx = "GOST";
1735 0 : break;
1736 : default:
1737 : kx = "unknown";
1738 : }
1739 :
1740 0 : switch (alg_auth) {
1741 : case SSL_aRSA:
1742 : au = "RSA";
1743 : break;
1744 : case SSL_aDSS:
1745 : au = "DSS";
1746 0 : break;
1747 : case SSL_aDH:
1748 : au = "DH";
1749 0 : break;
1750 : case SSL_aKRB5:
1751 : au = "KRB5";
1752 0 : break;
1753 : case SSL_aECDH:
1754 : au = "ECDH";
1755 0 : break;
1756 : case SSL_aNULL:
1757 : au = "None";
1758 0 : break;
1759 : case SSL_aECDSA:
1760 : au = "ECDSA";
1761 0 : break;
1762 : case SSL_aPSK:
1763 : au = "PSK";
1764 0 : break;
1765 : case SSL_aSRP:
1766 : au = "SRP";
1767 0 : break;
1768 : case SSL_aGOST94:
1769 : au = "GOST94";
1770 0 : break;
1771 : case SSL_aGOST01:
1772 : au = "GOST01";
1773 0 : break;
1774 : default:
1775 : au = "unknown";
1776 0 : break;
1777 : }
1778 :
1779 0 : switch (alg_enc) {
1780 : case SSL_DES:
1781 0 : enc = (is_export && kl == 5) ? "DES(40)" : "DES(56)";
1782 0 : break;
1783 : case SSL_3DES:
1784 : enc = "3DES(168)";
1785 : break;
1786 : case SSL_RC4:
1787 : enc = is_export ? (kl == 5 ? "RC4(40)" : "RC4(56)")
1788 0 : : ((alg2 & SSL2_CF_8_BYTE_ENC) ? "RC4(64)" : "RC4(128)");
1789 0 : break;
1790 : case SSL_RC2:
1791 0 : enc = is_export ? (kl == 5 ? "RC2(40)" : "RC2(56)") : "RC2(128)";
1792 0 : break;
1793 : case SSL_IDEA:
1794 : enc = "IDEA(128)";
1795 0 : break;
1796 : case SSL_eNULL:
1797 : enc = "None";
1798 0 : break;
1799 : case SSL_AES128:
1800 : enc = "AES(128)";
1801 0 : break;
1802 : case SSL_AES256:
1803 : enc = "AES(256)";
1804 0 : break;
1805 : case SSL_AES128GCM:
1806 : enc = "AESGCM(128)";
1807 0 : break;
1808 : case SSL_AES256GCM:
1809 : enc = "AESGCM(256)";
1810 0 : break;
1811 : case SSL_CAMELLIA128:
1812 : enc = "Camellia(128)";
1813 0 : break;
1814 : case SSL_CAMELLIA256:
1815 : enc = "Camellia(256)";
1816 0 : break;
1817 : case SSL_SEED:
1818 : enc = "SEED(128)";
1819 0 : break;
1820 : case SSL_eGOST2814789CNT:
1821 : enc = "GOST89(256)";
1822 0 : break;
1823 : default:
1824 : enc = "unknown";
1825 0 : break;
1826 : }
1827 :
1828 0 : switch (alg_mac) {
1829 : case SSL_MD5:
1830 : mac = "MD5";
1831 : break;
1832 : case SSL_SHA1:
1833 : mac = "SHA1";
1834 0 : break;
1835 : case SSL_SHA256:
1836 : mac = "SHA256";
1837 0 : break;
1838 : case SSL_SHA384:
1839 : mac = "SHA384";
1840 0 : break;
1841 : case SSL_AEAD:
1842 : mac = "AEAD";
1843 0 : break;
1844 : case SSL_GOST89MAC:
1845 : mac = "GOST89";
1846 0 : break;
1847 : case SSL_GOST94:
1848 : mac = "GOST94";
1849 0 : break;
1850 : default:
1851 : mac = "unknown";
1852 0 : break;
1853 : }
1854 :
1855 0 : if (buf == NULL) {
1856 : len = 128;
1857 0 : buf = OPENSSL_malloc(len);
1858 0 : if (buf == NULL)
1859 : return ("OPENSSL_malloc Error");
1860 0 : } else if (len < 128)
1861 : return ("Buffer too small");
1862 :
1863 : #ifdef KSSL_DEBUG
1864 : BIO_snprintf(buf, len, format, cipher->name, ver, kx, au, enc, mac,
1865 : exp_str, alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl);
1866 : #else
1867 0 : BIO_snprintf(buf, len, format, cipher->name, ver, kx, au, enc, mac,
1868 : exp_str);
1869 : #endif /* KSSL_DEBUG */
1870 0 : return (buf);
1871 : }
1872 :
1873 0 : char *SSL_CIPHER_get_version(const SSL_CIPHER *c)
1874 : {
1875 : int i;
1876 :
1877 0 : if (c == NULL)
1878 : return ("(NONE)");
1879 0 : i = (int)(c->id >> 24L);
1880 0 : if (i == 3)
1881 : return ("TLSv1/SSLv3");
1882 0 : else if (i == 2)
1883 : return ("SSLv2");
1884 : else
1885 0 : return ("unknown");
1886 : }
1887 :
1888 : /* return the actual cipher being used */
1889 0 : const char *SSL_CIPHER_get_name(const SSL_CIPHER *c)
1890 : {
1891 0 : if (c != NULL)
1892 0 : return (c->name);
1893 : return ("(NONE)");
1894 : }
1895 :
1896 : /* number of bits for symmetric cipher */
1897 0 : int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits)
1898 : {
1899 : int ret = 0;
1900 :
1901 0 : if (c != NULL) {
1902 0 : if (alg_bits != NULL)
1903 0 : *alg_bits = c->alg_bits;
1904 0 : ret = c->strength_bits;
1905 : }
1906 0 : return (ret);
1907 : }
1908 :
1909 0 : unsigned long SSL_CIPHER_get_id(const SSL_CIPHER *c)
1910 : {
1911 0 : return c->id;
1912 : }
1913 :
1914 0 : SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n)
1915 : {
1916 : SSL_COMP *ctmp;
1917 : int i, nn;
1918 :
1919 0 : if ((n == 0) || (sk == NULL))
1920 : return (NULL);
1921 0 : nn = sk_SSL_COMP_num(sk);
1922 0 : for (i = 0; i < nn; i++) {
1923 0 : ctmp = sk_SSL_COMP_value(sk, i);
1924 0 : if (ctmp->id == n)
1925 : return (ctmp);
1926 : }
1927 : return (NULL);
1928 : }
1929 :
1930 : #ifdef OPENSSL_NO_COMP
1931 : void *SSL_COMP_get_compression_methods(void)
1932 : {
1933 : return NULL;
1934 : }
1935 :
1936 : int SSL_COMP_add_compression_method(int id, void *cm)
1937 : {
1938 : return 1;
1939 : }
1940 :
1941 : const char *SSL_COMP_get_name(const void *comp)
1942 : {
1943 : return NULL;
1944 : }
1945 : #else
1946 993 : STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void)
1947 : {
1948 993 : load_builtin_compressions();
1949 993 : return (ssl_comp_methods);
1950 : }
1951 :
1952 0 : STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP)
1953 : *meths)
1954 : {
1955 0 : STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods;
1956 0 : ssl_comp_methods = meths;
1957 0 : return old_meths;
1958 : }
1959 :
1960 0 : static void cmeth_free(SSL_COMP *cm)
1961 : {
1962 0 : OPENSSL_free(cm);
1963 0 : }
1964 :
1965 0 : void SSL_COMP_free_compression_methods(void)
1966 : {
1967 0 : STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods;
1968 0 : ssl_comp_methods = NULL;
1969 0 : sk_SSL_COMP_pop_free(old_meths, cmeth_free);
1970 0 : }
1971 :
1972 0 : int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm)
1973 : {
1974 : SSL_COMP *comp;
1975 :
1976 0 : if (cm == NULL || cm->type == NID_undef)
1977 : return 1;
1978 :
1979 : /*-
1980 : * According to draft-ietf-tls-compression-04.txt, the
1981 : * compression number ranges should be the following:
1982 : *
1983 : * 0 to 63: methods defined by the IETF
1984 : * 64 to 192: external party methods assigned by IANA
1985 : * 193 to 255: reserved for private use
1986 : */
1987 0 : if (id < 193 || id > 255) {
1988 0 : SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,
1989 : SSL_R_COMPRESSION_ID_NOT_WITHIN_PRIVATE_RANGE);
1990 0 : return 0;
1991 : }
1992 :
1993 0 : MemCheck_off();
1994 0 : comp = (SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP));
1995 0 : comp->id = id;
1996 0 : comp->method = cm;
1997 0 : load_builtin_compressions();
1998 0 : if (ssl_comp_methods && sk_SSL_COMP_find(ssl_comp_methods, comp) >= 0) {
1999 0 : OPENSSL_free(comp);
2000 0 : MemCheck_on();
2001 0 : SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,
2002 : SSL_R_DUPLICATE_COMPRESSION_ID);
2003 0 : return (1);
2004 0 : } else if ((ssl_comp_methods == NULL)
2005 0 : || !sk_SSL_COMP_push(ssl_comp_methods, comp)) {
2006 0 : OPENSSL_free(comp);
2007 0 : MemCheck_on();
2008 0 : SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, ERR_R_MALLOC_FAILURE);
2009 0 : return (1);
2010 : } else {
2011 0 : MemCheck_on();
2012 0 : return (0);
2013 : }
2014 : }
2015 :
2016 0 : const char *SSL_COMP_get_name(const COMP_METHOD *comp)
2017 : {
2018 0 : if (comp)
2019 0 : return comp->name;
2020 : return NULL;
2021 : }
2022 : #endif
2023 : /* For a cipher return the index corresponding to the certificate type */
2024 743 : int ssl_cipher_get_cert_index(const SSL_CIPHER *c)
2025 : {
2026 : unsigned long alg_k, alg_a;
2027 :
2028 743 : alg_k = c->algorithm_mkey;
2029 743 : alg_a = c->algorithm_auth;
2030 :
2031 743 : if (alg_k & (SSL_kECDHr | SSL_kECDHe)) {
2032 : /*
2033 : * we don't need to look at SSL_kEECDH since no certificate is needed
2034 : * for anon ECDH and for authenticated EECDH, the check for the auth
2035 : * algorithm will set i correctly NOTE: For ECDH-RSA, we need an ECC
2036 : * not an RSA cert but for EECDH-RSA we need an RSA cert. Placing the
2037 : * checks for SSL_kECDH before RSA checks ensures the correct cert is
2038 : * chosen.
2039 : */
2040 : return SSL_PKEY_ECC;
2041 743 : } else if (alg_a & SSL_aECDSA)
2042 : return SSL_PKEY_ECC;
2043 743 : else if (alg_k & SSL_kDHr)
2044 : return SSL_PKEY_DH_RSA;
2045 743 : else if (alg_k & SSL_kDHd)
2046 : return SSL_PKEY_DH_DSA;
2047 743 : else if (alg_a & SSL_aDSS)
2048 : return SSL_PKEY_DSA_SIGN;
2049 743 : else if (alg_a & SSL_aRSA)
2050 : return SSL_PKEY_RSA_ENC;
2051 0 : else if (alg_a & SSL_aKRB5)
2052 : /* VRS something else here? */
2053 : return -1;
2054 0 : else if (alg_a & SSL_aGOST94)
2055 : return SSL_PKEY_GOST94;
2056 0 : else if (alg_a & SSL_aGOST01)
2057 : return SSL_PKEY_GOST01;
2058 0 : return -1;
2059 : }
2060 :
2061 1862 : const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr)
2062 : {
2063 : const SSL_CIPHER *c;
2064 1862 : c = ssl->method->get_cipher_by_char(ptr);
2065 1862 : if (c == NULL || c->valid == 0)
2066 : return NULL;
2067 1862 : return c;
2068 : }
2069 :
2070 0 : const SSL_CIPHER *SSL_CIPHER_find(SSL *ssl, const unsigned char *ptr)
2071 : {
2072 0 : return ssl->method->get_cipher_by_char(ptr);
2073 : }
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