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58964a49 | 1 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
2 | * All rights reserved. |
3 | * | |
4 | * This package is an SSL implementation written | |
5 | * by Eric Young (eay@cryptsoft.com). | |
6 | * The implementation was written so as to conform with Netscapes SSL. | |
0f113f3e | 7 | * |
d02b48c6 RE |
8 | * This library is free for commercial and non-commercial use as long as |
9 | * the following conditions are aheared to. The following conditions | |
10 | * apply to all code found in this distribution, be it the RC4, RSA, | |
11 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
12 | * included with this distribution is covered by the same copyright terms | |
13 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
0f113f3e | 14 | * |
d02b48c6 RE |
15 | * Copyright remains Eric Young's, and as such any Copyright notices in |
16 | * the code are not to be removed. | |
17 | * If this package is used in a product, Eric Young should be given attribution | |
18 | * as the author of the parts of the library used. | |
19 | * This can be in the form of a textual message at program startup or | |
20 | * in documentation (online or textual) provided with the package. | |
0f113f3e | 21 | * |
d02b48c6 RE |
22 | * Redistribution and use in source and binary forms, with or without |
23 | * modification, are permitted provided that the following conditions | |
24 | * are met: | |
25 | * 1. Redistributions of source code must retain the copyright | |
26 | * notice, this list of conditions and the following disclaimer. | |
27 | * 2. Redistributions in binary form must reproduce the above copyright | |
28 | * notice, this list of conditions and the following disclaimer in the | |
29 | * documentation and/or other materials provided with the distribution. | |
30 | * 3. All advertising materials mentioning features or use of this software | |
31 | * must display the following acknowledgement: | |
32 | * "This product includes cryptographic software written by | |
33 | * Eric Young (eay@cryptsoft.com)" | |
34 | * The word 'cryptographic' can be left out if the rouines from the library | |
35 | * being used are not cryptographic related :-). | |
0f113f3e | 36 | * 4. If you include any Windows specific code (or a derivative thereof) from |
d02b48c6 RE |
37 | * the apps directory (application code) you must include an acknowledgement: |
38 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
0f113f3e | 39 | * |
d02b48c6 RE |
40 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
41 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
43 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
44 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
45 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
46 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
48 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
49 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
50 | * SUCH DAMAGE. | |
0f113f3e | 51 | * |
d02b48c6 RE |
52 | * The licence and distribution terms for any publically available version or |
53 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
54 | * copied and put under another distribution licence | |
55 | * [including the GNU Public Licence.] | |
56 | */ | |
675f605d | 57 | /* ==================================================================== |
52b8dad8 | 58 | * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. |
675f605d BM |
59 | * |
60 | * Redistribution and use in source and binary forms, with or without | |
61 | * modification, are permitted provided that the following conditions | |
62 | * are met: | |
63 | * | |
64 | * 1. Redistributions of source code must retain the above copyright | |
0f113f3e | 65 | * notice, this list of conditions and the following disclaimer. |
675f605d BM |
66 | * |
67 | * 2. Redistributions in binary form must reproduce the above copyright | |
68 | * notice, this list of conditions and the following disclaimer in | |
69 | * the documentation and/or other materials provided with the | |
70 | * distribution. | |
71 | * | |
72 | * 3. All advertising materials mentioning features or use of this | |
73 | * software must display the following acknowledgment: | |
74 | * "This product includes software developed by the OpenSSL Project | |
75 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | |
76 | * | |
77 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
78 | * endorse or promote products derived from this software without | |
79 | * prior written permission. For written permission, please contact | |
80 | * openssl-core@openssl.org. | |
81 | * | |
82 | * 5. Products derived from this software may not be called "OpenSSL" | |
83 | * nor may "OpenSSL" appear in their names without prior written | |
84 | * permission of the OpenSSL Project. | |
85 | * | |
86 | * 6. Redistributions of any form whatsoever must retain the following | |
87 | * acknowledgment: | |
88 | * "This product includes software developed by the OpenSSL Project | |
89 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | |
90 | * | |
91 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
92 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
93 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
94 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
95 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
96 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
97 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
98 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
99 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
100 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
101 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
102 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
103 | * ==================================================================== | |
104 | * | |
105 | * This product includes cryptographic software written by Eric Young | |
106 | * (eay@cryptsoft.com). This product includes software written by Tim | |
107 | * Hudson (tjh@cryptsoft.com). | |
108 | * | |
109 | */ | |
ea262260 BM |
110 | /* ==================================================================== |
111 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | |
0f113f3e | 112 | * ECC cipher suite support in OpenSSL originally developed by |
ea262260 BM |
113 | * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. |
114 | */ | |
ddac1974 NL |
115 | /* ==================================================================== |
116 | * Copyright 2005 Nokia. All rights reserved. | |
117 | * | |
118 | * The portions of the attached software ("Contribution") is developed by | |
119 | * Nokia Corporation and is licensed pursuant to the OpenSSL open source | |
120 | * license. | |
121 | * | |
122 | * The Contribution, originally written by Mika Kousa and Pasi Eronen of | |
123 | * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites | |
124 | * support (see RFC 4279) to OpenSSL. | |
125 | * | |
126 | * No patent licenses or other rights except those expressly stated in | |
127 | * the OpenSSL open source license shall be deemed granted or received | |
128 | * expressly, by implication, estoppel, or otherwise. | |
129 | * | |
130 | * No assurances are provided by Nokia that the Contribution does not | |
131 | * infringe the patent or other intellectual property rights of any third | |
132 | * party or that the license provides you with all the necessary rights | |
133 | * to make use of the Contribution. | |
134 | * | |
135 | * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN | |
136 | * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA | |
137 | * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY | |
138 | * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR | |
139 | * OTHERWISE. | |
140 | */ | |
141 | ||
d02b48c6 | 142 | #include <stdio.h> |
ec577822 | 143 | #include <openssl/objects.h> |
fceac0bc | 144 | #ifndef OPENSSL_NO_COMP |
0f113f3e | 145 | # include <openssl/comp.h> |
fceac0bc | 146 | #endif |
70531c14 | 147 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e | 148 | # include <openssl/engine.h> |
70531c14 | 149 | #endif |
d02b48c6 RE |
150 | #include "ssl_locl.h" |
151 | ||
0f113f3e MC |
152 | #define SSL_ENC_DES_IDX 0 |
153 | #define SSL_ENC_3DES_IDX 1 | |
154 | #define SSL_ENC_RC4_IDX 2 | |
155 | #define SSL_ENC_RC2_IDX 3 | |
156 | #define SSL_ENC_IDEA_IDX 4 | |
157 | #define SSL_ENC_NULL_IDX 5 | |
158 | #define SSL_ENC_AES128_IDX 6 | |
159 | #define SSL_ENC_AES256_IDX 7 | |
160 | #define SSL_ENC_CAMELLIA128_IDX 8 | |
161 | #define SSL_ENC_CAMELLIA256_IDX 9 | |
162 | #define SSL_ENC_GOST89_IDX 10 | |
163 | #define SSL_ENC_SEED_IDX 11 | |
164 | #define SSL_ENC_AES128GCM_IDX 12 | |
165 | #define SSL_ENC_AES256GCM_IDX 13 | |
e75c5a79 DSH |
166 | #define SSL_ENC_AES128CCM_IDX 14 |
167 | #define SSL_ENC_AES256CCM_IDX 15 | |
3d3701ea DSH |
168 | #define SSL_ENC_AES128CCM8_IDX 16 |
169 | #define SSL_ENC_AES256CCM8_IDX 17 | |
e44380a9 | 170 | #define SSL_ENC_GOST8912_IDX 18 |
a76ba82c AP |
171 | #define SSL_ENC_CHACHA_IDX 19 |
172 | #define SSL_ENC_NUM_IDX 20 | |
0f113f3e | 173 | |
98c9ce2f DSH |
174 | /* NB: make sure indices in these tables match values above */ |
175 | ||
176 | typedef struct { | |
90d9e49a | 177 | uint32_t mask; |
98c9ce2f DSH |
178 | int nid; |
179 | } ssl_cipher_table; | |
180 | ||
181 | /* Table of NIDs for each cipher */ | |
182 | static const ssl_cipher_table ssl_cipher_table_cipher[SSL_ENC_NUM_IDX] = { | |
183 | {SSL_DES, NID_des_cbc}, /* SSL_ENC_DES_IDX 0 */ | |
184 | {SSL_3DES, NID_des_ede3_cbc}, /* SSL_ENC_3DES_IDX 1 */ | |
185 | {SSL_RC4, NID_rc4}, /* SSL_ENC_RC4_IDX 2 */ | |
186 | {SSL_RC2, NID_rc2_cbc}, /* SSL_ENC_RC2_IDX 3 */ | |
187 | {SSL_IDEA, NID_idea_cbc}, /* SSL_ENC_IDEA_IDX 4 */ | |
188 | {SSL_eNULL, NID_undef}, /* SSL_ENC_NULL_IDX 5 */ | |
189 | {SSL_AES128, NID_aes_128_cbc}, /* SSL_ENC_AES128_IDX 6 */ | |
190 | {SSL_AES256, NID_aes_256_cbc}, /* SSL_ENC_AES256_IDX 7 */ | |
191 | {SSL_CAMELLIA128, NID_camellia_128_cbc}, /* SSL_ENC_CAMELLIA128_IDX 8 */ | |
192 | {SSL_CAMELLIA256, NID_camellia_256_cbc}, /* SSL_ENC_CAMELLIA256_IDX 9 */ | |
193 | {SSL_eGOST2814789CNT, NID_gost89_cnt}, /* SSL_ENC_GOST89_IDX 10 */ | |
194 | {SSL_SEED, NID_seed_cbc}, /* SSL_ENC_SEED_IDX 11 */ | |
195 | {SSL_AES128GCM, NID_aes_128_gcm}, /* SSL_ENC_AES128GCM_IDX 12 */ | |
e75c5a79 DSH |
196 | {SSL_AES256GCM, NID_aes_256_gcm}, /* SSL_ENC_AES256GCM_IDX 13 */ |
197 | {SSL_AES128CCM, NID_aes_128_ccm}, /* SSL_ENC_AES128CCM_IDX 14 */ | |
3d3701ea DSH |
198 | {SSL_AES256CCM, NID_aes_256_ccm}, /* SSL_ENC_AES256CCM_IDX 15 */ |
199 | {SSL_AES128CCM8, NID_aes_128_ccm}, /* SSL_ENC_AES128CCM8_IDX 16 */ | |
e44380a9 DB |
200 | {SSL_AES256CCM8, NID_aes_256_ccm}, /* SSL_ENC_AES256CCM8_IDX 17 */ |
201 | {SSL_eGOST2814789CNT12, NID_gost89_cnt_12}, /* SSL_ENC_GOST8912_IDX */ | |
a76ba82c | 202 | {SSL_CHACHA20POLY1305, NID_chacha20_poly1305}, |
98c9ce2f DSH |
203 | }; |
204 | ||
0f113f3e MC |
205 | static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX] = { |
206 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, | |
207 | NULL, NULL | |
208 | }; | |
209 | ||
210 | #define SSL_COMP_NULL_IDX 0 | |
211 | #define SSL_COMP_ZLIB_IDX 1 | |
212 | #define SSL_COMP_NUM_IDX 2 | |
213 | ||
214 | static STACK_OF(SSL_COMP) *ssl_comp_methods = NULL; | |
215 | ||
0f113f3e MC |
216 | /* |
217 | * Constant SSL_MAX_DIGEST equal to size of digests array should be defined | |
218 | * in the ssl_locl.h | |
b948e2c5 | 219 | */ |
98c9ce2f | 220 | |
0f113f3e | 221 | #define SSL_MD_NUM_IDX SSL_MAX_DIGEST |
98c9ce2f DSH |
222 | |
223 | /* NB: make sure indices in this table matches values above */ | |
224 | static const ssl_cipher_table ssl_cipher_table_mac[SSL_MD_NUM_IDX] = { | |
225 | {SSL_MD5, NID_md5}, /* SSL_MD_MD5_IDX 0 */ | |
226 | {SSL_SHA1, NID_sha1}, /* SSL_MD_SHA1_IDX 1 */ | |
227 | {SSL_GOST94, NID_id_GostR3411_94}, /* SSL_MD_GOST94_IDX 2 */ | |
228 | {SSL_GOST89MAC, NID_id_Gost28147_89_MAC}, /* SSL_MD_GOST89MAC_IDX 3 */ | |
229 | {SSL_SHA256, NID_sha256}, /* SSL_MD_SHA256_IDX 4 */ | |
e44380a9 DB |
230 | {SSL_SHA384, NID_sha384}, /* SSL_MD_SHA384_IDX 5 */ |
231 | {SSL_GOST12_256, NID_id_GostR3411_2012_256}, /* SSL_MD_GOST12_256_IDX 6 */ | |
232 | {SSL_GOST89MAC12, NID_gost_mac_12}, /* SSL_MD_GOST89MAC12_IDX 7 */ | |
28ba2541 | 233 | {SSL_GOST12_512, NID_id_GostR3411_2012_512}, /* SSL_MD_GOST12_512_IDX 8 */ |
7afd2312 DSH |
234 | {0, NID_md5_sha1}, /* SSL_MD_MD5_SHA1_IDX 9 */ |
235 | {0, NID_sha224}, /* SSL_MD_SHA224_IDX 10 */ | |
236 | {0, NID_sha512} /* SSL_MD_SHA512_IDX 11 */ | |
98c9ce2f DSH |
237 | }; |
238 | ||
0f113f3e | 239 | static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX] = { |
7afd2312 | 240 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL |
0f113f3e MC |
241 | }; |
242 | ||
98c9ce2f DSH |
243 | /* Utility function for table lookup */ |
244 | static int ssl_cipher_info_find(const ssl_cipher_table * table, | |
90d9e49a | 245 | size_t table_cnt, uint32_t mask) |
98c9ce2f DSH |
246 | { |
247 | size_t i; | |
248 | for (i = 0; i < table_cnt; i++, table++) { | |
249 | if (table->mask == mask) | |
250 | return i; | |
251 | } | |
252 | return -1; | |
253 | } | |
254 | ||
255 | #define ssl_cipher_info_lookup(table, x) \ | |
b6eb9827 | 256 | ssl_cipher_info_find(table, OSSL_NELEM(table), x) |
98c9ce2f | 257 | |
0f113f3e MC |
258 | /* |
259 | * PKEY_TYPE for GOST89MAC is known in advance, but, because implementation | |
260 | * is engine-provided, we'll fill it only if corresponding EVP_PKEY_METHOD is | |
261 | * found | |
262 | */ | |
263 | static int ssl_mac_pkey_id[SSL_MD_NUM_IDX] = { | |
e44380a9 | 264 | /* MD5, SHA, GOST94, MAC89 */ |
0f113f3e | 265 | EVP_PKEY_HMAC, EVP_PKEY_HMAC, EVP_PKEY_HMAC, NID_undef, |
e44380a9 DB |
266 | /* SHA256, SHA384, GOST2012_256, MAC89-12 */ |
267 | EVP_PKEY_HMAC, EVP_PKEY_HMAC, EVP_PKEY_HMAC, NID_undef, | |
268 | /* GOST2012_512 */ | |
269 | EVP_PKEY_HMAC, | |
0f113f3e MC |
270 | }; |
271 | ||
272 | static int ssl_mac_secret_size[SSL_MD_NUM_IDX] = { | |
28ba2541 | 273 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 |
0f113f3e MC |
274 | }; |
275 | ||
276 | #define CIPHER_ADD 1 | |
277 | #define CIPHER_KILL 2 | |
278 | #define CIPHER_DEL 3 | |
279 | #define CIPHER_ORD 4 | |
280 | #define CIPHER_SPECIAL 5 | |
281 | ||
282 | typedef struct cipher_order_st { | |
283 | const SSL_CIPHER *cipher; | |
284 | int active; | |
285 | int dead; | |
286 | struct cipher_order_st *next, *prev; | |
287 | } CIPHER_ORDER; | |
288 | ||
289 | static const SSL_CIPHER cipher_aliases[] = { | |
290 | /* "ALL" doesn't include eNULL (must be specifically enabled) */ | |
291 | {0, SSL_TXT_ALL, 0, 0, 0, ~SSL_eNULL, 0, 0, 0, 0, 0, 0}, | |
292 | /* "COMPLEMENTOFALL" */ | |
293 | {0, SSL_TXT_CMPALL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0}, | |
294 | ||
295 | /* | |
296 | * "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in | |
297 | * ALL!) | |
298 | */ | |
c84f7f4a | 299 | {0, SSL_TXT_CMPDEF, 0, 0, 0, ~SSL_eNULL, 0, 0, SSL_NOT_DEFAULT, 0, 0, 0}, |
0f113f3e MC |
300 | |
301 | /* | |
302 | * key exchange aliases (some of those using only a single bit here | |
303 | * combine multiple key exchange algs according to the RFCs, e.g. kDHE | |
304 | * combines DHE_DSS and DHE_RSA) | |
305 | */ | |
306 | {0, SSL_TXT_kRSA, 0, SSL_kRSA, 0, 0, 0, 0, 0, 0, 0, 0}, | |
307 | ||
0f113f3e MC |
308 | {0, SSL_TXT_kEDH, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, 0}, |
309 | {0, SSL_TXT_kDHE, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, 0}, | |
bc71f910 | 310 | {0, SSL_TXT_DH, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, |
0f113f3e MC |
311 | 0}, |
312 | ||
0f113f3e MC |
313 | {0, SSL_TXT_kEECDH, 0, SSL_kECDHE, 0, 0, 0, 0, 0, 0, 0, 0}, |
314 | {0, SSL_TXT_kECDHE, 0, SSL_kECDHE, 0, 0, 0, 0, 0, 0, 0, 0}, | |
ce0c1f2b | 315 | {0, SSL_TXT_ECDH, 0, SSL_kECDHE, 0, 0, 0, 0, 0, |
0f113f3e MC |
316 | 0, 0, 0}, |
317 | ||
318 | {0, SSL_TXT_kPSK, 0, SSL_kPSK, 0, 0, 0, 0, 0, 0, 0, 0}, | |
dcbd5060 DSH |
319 | {0, SSL_TXT_kRSAPSK, 0, SSL_kRSAPSK, 0, 0, 0, 0, 0, 0, 0, 0}, |
320 | {0, SSL_TXT_kECDHEPSK, 0, SSL_kECDHEPSK, 0, 0, 0, 0, 0, 0, 0, 0}, | |
321 | {0, SSL_TXT_kDHEPSK, 0, SSL_kDHEPSK, 0, 0, 0, 0, 0, 0, 0, 0}, | |
0f113f3e MC |
322 | {0, SSL_TXT_kSRP, 0, SSL_kSRP, 0, 0, 0, 0, 0, 0, 0, 0}, |
323 | {0, SSL_TXT_kGOST, 0, SSL_kGOST, 0, 0, 0, 0, 0, 0, 0, 0}, | |
324 | ||
325 | /* server authentication aliases */ | |
326 | {0, SSL_TXT_aRSA, 0, 0, SSL_aRSA, 0, 0, 0, 0, 0, 0, 0}, | |
327 | {0, SSL_TXT_aDSS, 0, 0, SSL_aDSS, 0, 0, 0, 0, 0, 0, 0}, | |
328 | {0, SSL_TXT_DSS, 0, 0, SSL_aDSS, 0, 0, 0, 0, 0, 0, 0}, | |
0f113f3e | 329 | {0, SSL_TXT_aNULL, 0, 0, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0}, |
0f113f3e MC |
330 | {0, SSL_TXT_aECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0}, |
331 | {0, SSL_TXT_ECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0}, | |
332 | {0, SSL_TXT_aPSK, 0, 0, SSL_aPSK, 0, 0, 0, 0, 0, 0, 0}, | |
0f113f3e | 333 | {0, SSL_TXT_aGOST01, 0, 0, SSL_aGOST01, 0, 0, 0, 0, 0, 0, 0}, |
e44380a9 DB |
334 | {0, SSL_TXT_aGOST12, 0, 0, SSL_aGOST12, 0, 0, 0, 0, 0, 0, 0}, |
335 | {0, SSL_TXT_aGOST, 0, 0, SSL_aGOST01 | SSL_aGOST12, 0, 0, 0, | |
336 | 0, 0, 0, 0}, | |
0f113f3e MC |
337 | {0, SSL_TXT_aSRP, 0, 0, SSL_aSRP, 0, 0, 0, 0, 0, 0, 0}, |
338 | ||
339 | /* aliases combining key exchange and server authentication */ | |
340 | {0, SSL_TXT_EDH, 0, SSL_kDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0}, | |
341 | {0, SSL_TXT_DHE, 0, SSL_kDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0}, | |
342 | {0, SSL_TXT_EECDH, 0, SSL_kECDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0}, | |
343 | {0, SSL_TXT_ECDHE, 0, SSL_kECDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0}, | |
344 | {0, SSL_TXT_NULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0}, | |
0f113f3e MC |
345 | {0, SSL_TXT_RSA, 0, SSL_kRSA, SSL_aRSA, 0, 0, 0, 0, 0, 0, 0}, |
346 | {0, SSL_TXT_ADH, 0, SSL_kDHE, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0}, | |
347 | {0, SSL_TXT_AECDH, 0, SSL_kECDHE, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0}, | |
dcbd5060 | 348 | {0, SSL_TXT_PSK, 0, SSL_PSK, 0, 0, 0, 0, 0, 0, 0, 0}, |
0f113f3e MC |
349 | {0, SSL_TXT_SRP, 0, SSL_kSRP, 0, 0, 0, 0, 0, 0, 0, 0}, |
350 | ||
351 | /* symmetric encryption aliases */ | |
352 | {0, SSL_TXT_DES, 0, 0, 0, SSL_DES, 0, 0, 0, 0, 0, 0}, | |
353 | {0, SSL_TXT_3DES, 0, 0, 0, SSL_3DES, 0, 0, 0, 0, 0, 0}, | |
354 | {0, SSL_TXT_RC4, 0, 0, 0, SSL_RC4, 0, 0, 0, 0, 0, 0}, | |
355 | {0, SSL_TXT_RC2, 0, 0, 0, SSL_RC2, 0, 0, 0, 0, 0, 0}, | |
356 | {0, SSL_TXT_IDEA, 0, 0, 0, SSL_IDEA, 0, 0, 0, 0, 0, 0}, | |
357 | {0, SSL_TXT_SEED, 0, 0, 0, SSL_SEED, 0, 0, 0, 0, 0, 0}, | |
358 | {0, SSL_TXT_eNULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0}, | |
e44380a9 DB |
359 | {0, SSL_TXT_GOST, 0, 0, 0, SSL_eGOST2814789CNT | SSL_eGOST2814789CNT12, 0, |
360 | 0, 0, 0, 0, 0}, | |
3d3701ea | 361 | {0, SSL_TXT_AES128, 0, 0, 0, SSL_AES128 | SSL_AES128GCM | SSL_AES128CCM | SSL_AES128CCM8, 0, |
e75c5a79 | 362 | 0, 0, 0, 0, 0}, |
3d3701ea | 363 | {0, SSL_TXT_AES256, 0, 0, 0, SSL_AES256 | SSL_AES256GCM | SSL_AES256CCM | SSL_AES256CCM8, 0, |
e75c5a79 | 364 | 0, 0, 0, 0, 0}, |
0f113f3e MC |
365 | {0, SSL_TXT_AES, 0, 0, 0, SSL_AES, 0, 0, 0, 0, 0, 0}, |
366 | {0, SSL_TXT_AES_GCM, 0, 0, 0, SSL_AES128GCM | SSL_AES256GCM, 0, 0, 0, 0, | |
367 | 0, 0}, | |
3d3701ea DSH |
368 | {0, SSL_TXT_AES_CCM, 0, 0, 0, SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8, 0, 0, 0, 0, |
369 | 0, 0}, | |
370 | {0, SSL_TXT_AES_CCM_8, 0, 0, 0, SSL_AES128CCM8 | SSL_AES256CCM8, 0, 0, 0, 0, | |
e75c5a79 | 371 | 0, 0}, |
0f113f3e MC |
372 | {0, SSL_TXT_CAMELLIA128, 0, 0, 0, SSL_CAMELLIA128, 0, 0, 0, 0, 0, 0}, |
373 | {0, SSL_TXT_CAMELLIA256, 0, 0, 0, SSL_CAMELLIA256, 0, 0, 0, 0, 0, 0}, | |
1c37fd96 TS |
374 | {0, SSL_TXT_CAMELLIA, 0, 0, 0, SSL_CAMELLIA, 0, 0, 0, 0, 0, 0}, |
375 | {0, SSL_TXT_CHACHA20, 0, 0, 0, SSL_CHACHA20, 0, 0, 0, 0, 0, 0 }, | |
0f113f3e MC |
376 | |
377 | /* MAC aliases */ | |
378 | {0, SSL_TXT_MD5, 0, 0, 0, 0, SSL_MD5, 0, 0, 0, 0, 0}, | |
379 | {0, SSL_TXT_SHA1, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0}, | |
380 | {0, SSL_TXT_SHA, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0}, | |
381 | {0, SSL_TXT_GOST94, 0, 0, 0, 0, SSL_GOST94, 0, 0, 0, 0, 0}, | |
e44380a9 DB |
382 | {0, SSL_TXT_GOST89MAC, 0, 0, 0, 0, SSL_GOST89MAC | SSL_GOST89MAC12, 0, 0, |
383 | 0, 0, 0}, | |
0f113f3e MC |
384 | {0, SSL_TXT_SHA256, 0, 0, 0, 0, SSL_SHA256, 0, 0, 0, 0, 0}, |
385 | {0, SSL_TXT_SHA384, 0, 0, 0, 0, SSL_SHA384, 0, 0, 0, 0, 0}, | |
e44380a9 | 386 | {0, SSL_TXT_GOST12, 0, 0, 0, 0, SSL_GOST12_256, 0, 0, 0, 0, 0}, |
0f113f3e MC |
387 | |
388 | /* protocol version aliases */ | |
389 | {0, SSL_TXT_SSLV3, 0, 0, 0, 0, 0, SSL_SSLV3, 0, 0, 0, 0}, | |
5e3d21fe | 390 | {0, SSL_TXT_TLSV1, 0, 0, 0, 0, 0, SSL_SSLV3, 0, 0, 0, 0}, |
60a25abd | 391 | {0, "TLSv1.0", 0, 0, 0, 0, 0, SSL_TLSV1, 0, 0, 0, 0}, |
0f113f3e MC |
392 | {0, SSL_TXT_TLSV1_2, 0, 0, 0, 0, 0, SSL_TLSV1_2, 0, 0, 0, 0}, |
393 | ||
0f113f3e | 394 | /* strength classes */ |
0f113f3e MC |
395 | {0, SSL_TXT_LOW, 0, 0, 0, 0, 0, 0, SSL_LOW, 0, 0, 0}, |
396 | {0, SSL_TXT_MEDIUM, 0, 0, 0, 0, 0, 0, SSL_MEDIUM, 0, 0, 0}, | |
397 | {0, SSL_TXT_HIGH, 0, 0, 0, 0, 0, 0, SSL_HIGH, 0, 0, 0}, | |
398 | /* FIPS 140-2 approved ciphersuite */ | |
399 | {0, SSL_TXT_FIPS, 0, 0, 0, ~SSL_eNULL, 0, 0, SSL_FIPS, 0, 0, 0}, | |
400 | ||
401 | /* "EDH-" aliases to "DHE-" labels (for backward compatibility) */ | |
0f113f3e MC |
402 | {0, SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA, 0, |
403 | SSL_kDHE, SSL_aDSS, SSL_3DES, SSL_SHA1, SSL_SSLV3, | |
361a1191 | 404 | SSL_HIGH | SSL_FIPS, 0, 0, 0,}, |
0f113f3e MC |
405 | {0, SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA, 0, |
406 | SSL_kDHE, SSL_aRSA, SSL_3DES, SSL_SHA1, SSL_SSLV3, | |
361a1191 | 407 | SSL_HIGH | SSL_FIPS, 0, 0, 0,}, |
0f113f3e MC |
408 | |
409 | }; | |
410 | ||
411 | /* | |
412 | * Search for public key algorithm with given name and return its pkey_id if | |
413 | * it is available. Otherwise return 0 | |
81025661 | 414 | */ |
70531c14 DSH |
415 | #ifdef OPENSSL_NO_ENGINE |
416 | ||
81025661 | 417 | static int get_optional_pkey_id(const char *pkey_name) |
0f113f3e MC |
418 | { |
419 | const EVP_PKEY_ASN1_METHOD *ameth; | |
420 | int pkey_id = 0; | |
421 | ameth = EVP_PKEY_asn1_find_str(NULL, pkey_name, -1); | |
5f3d93e4 MC |
422 | if (ameth && EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, |
423 | ameth) > 0) { | |
424 | return pkey_id; | |
0f113f3e | 425 | } |
5f3d93e4 | 426 | return 0; |
0f113f3e | 427 | } |
d02b48c6 | 428 | |
70531c14 DSH |
429 | #else |
430 | ||
431 | static int get_optional_pkey_id(const char *pkey_name) | |
0f113f3e MC |
432 | { |
433 | const EVP_PKEY_ASN1_METHOD *ameth; | |
434 | ENGINE *tmpeng = NULL; | |
435 | int pkey_id = 0; | |
436 | ameth = EVP_PKEY_asn1_find_str(&tmpeng, pkey_name, -1); | |
437 | if (ameth) { | |
5f3d93e4 MC |
438 | if (EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, |
439 | ameth) <= 0) | |
440 | pkey_id = 0; | |
0f113f3e MC |
441 | } |
442 | if (tmpeng) | |
443 | ENGINE_finish(tmpeng); | |
444 | return pkey_id; | |
445 | } | |
70531c14 DSH |
446 | |
447 | #endif | |
448 | ||
633d49c7 | 449 | /* masks of disabled algorithms */ |
90d9e49a DSH |
450 | static uint32_t disabled_enc_mask; |
451 | static uint32_t disabled_mac_mask; | |
452 | static uint32_t disabled_mkey_mask; | |
453 | static uint32_t disabled_auth_mask; | |
633d49c7 | 454 | |
7f3c9036 | 455 | void ssl_load_ciphers(void) |
0f113f3e | 456 | { |
98c9ce2f DSH |
457 | size_t i; |
458 | const ssl_cipher_table *t; | |
633d49c7 | 459 | disabled_enc_mask = 0; |
98c9ce2f | 460 | for (i = 0, t = ssl_cipher_table_cipher; i < SSL_ENC_NUM_IDX; i++, t++) { |
633d49c7 | 461 | if (t->nid == NID_undef) { |
98c9ce2f | 462 | ssl_cipher_methods[i] = NULL; |
633d49c7 DSH |
463 | } else { |
464 | const EVP_CIPHER *cipher = EVP_get_cipherbynid(t->nid); | |
465 | ssl_cipher_methods[i] = cipher; | |
466 | if (cipher == NULL) | |
467 | disabled_enc_mask |= t->mask; | |
468 | } | |
0f113f3e | 469 | } |
633d49c7 DSH |
470 | #ifdef SSL_FORBID_ENULL |
471 | disabled_enc_mask |= SSL_eNULL; | |
472 | #endif | |
473 | disabled_mac_mask = 0; | |
98c9ce2f | 474 | for (i = 0, t = ssl_cipher_table_mac; i < SSL_MD_NUM_IDX; i++, t++) { |
633d49c7 DSH |
475 | const EVP_MD *md = EVP_get_digestbynid(t->nid); |
476 | ssl_digest_methods[i] = md; | |
477 | if (md == NULL) { | |
478 | disabled_mac_mask |= t->mask; | |
479 | } else { | |
480 | ssl_mac_secret_size[i] = EVP_MD_size(md); | |
98c9ce2f DSH |
481 | OPENSSL_assert(ssl_mac_secret_size[i] >= 0); |
482 | } | |
483 | } | |
484 | /* Make sure we can access MD5 and SHA1 */ | |
485 | OPENSSL_assert(ssl_digest_methods[SSL_MD_MD5_IDX] != NULL); | |
486 | OPENSSL_assert(ssl_digest_methods[SSL_MD_SHA1_IDX] != NULL); | |
633d49c7 DSH |
487 | |
488 | disabled_mkey_mask = 0; | |
489 | disabled_auth_mask = 0; | |
490 | ||
491 | #ifdef OPENSSL_NO_RSA | |
332a251f | 492 | disabled_mkey_mask |= SSL_kRSA | SSL_kRSAPSK; |
633d49c7 DSH |
493 | disabled_auth_mask |= SSL_aRSA; |
494 | #endif | |
495 | #ifdef OPENSSL_NO_DSA | |
496 | disabled_auth_mask |= SSL_aDSS; | |
497 | #endif | |
498 | #ifdef OPENSSL_NO_DH | |
bc71f910 | 499 | disabled_mkey_mask |= SSL_kDHE | SSL_kDHEPSK; |
633d49c7 DSH |
500 | #endif |
501 | #ifdef OPENSSL_NO_EC | |
ce0c1f2b DSH |
502 | disabled_mkey_mask |= SSL_kECDHEPSK; |
503 | disabled_auth_mask |= SSL_aECDSA; | |
633d49c7 DSH |
504 | #endif |
505 | #ifdef OPENSSL_NO_PSK | |
332a251f | 506 | disabled_mkey_mask |= SSL_PSK; |
633d49c7 DSH |
507 | disabled_auth_mask |= SSL_aPSK; |
508 | #endif | |
509 | #ifdef OPENSSL_NO_SRP | |
510 | disabled_mkey_mask |= SSL_kSRP; | |
511 | #endif | |
512 | ||
513 | /* | |
514 | * Check for presence of GOST 34.10 algorithms, and if they are not | |
515 | * present, disable appropriate auth and key exchange | |
516 | */ | |
e1fa652d DSH |
517 | ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX] = get_optional_pkey_id("gost-mac"); |
518 | if (ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]) { | |
519 | ssl_mac_secret_size[SSL_MD_GOST89MAC_IDX] = 32; | |
633d49c7 DSH |
520 | } else { |
521 | disabled_mac_mask |= SSL_GOST89MAC; | |
e1fa652d | 522 | } |
633d49c7 | 523 | |
e44380a9 DB |
524 | ssl_mac_pkey_id[SSL_MD_GOST89MAC12_IDX] = get_optional_pkey_id("gost-mac-12"); |
525 | if (ssl_mac_pkey_id[SSL_MD_GOST89MAC12_IDX]) { | |
526 | ssl_mac_secret_size[SSL_MD_GOST89MAC12_IDX] = 32; | |
527 | } else { | |
528 | disabled_mac_mask |= SSL_GOST89MAC12; | |
529 | } | |
530 | ||
633d49c7 | 531 | if (!get_optional_pkey_id("gost2001")) |
e44380a9 DB |
532 | disabled_auth_mask |= SSL_aGOST01 | SSL_aGOST12; |
533 | if (!get_optional_pkey_id("gost2012_256")) | |
534 | disabled_auth_mask |= SSL_aGOST12; | |
535 | if (!get_optional_pkey_id("gost2012_512")) | |
536 | disabled_auth_mask |= SSL_aGOST12; | |
633d49c7 DSH |
537 | /* |
538 | * Disable GOST key exchange if no GOST signature algs are available * | |
539 | */ | |
e44380a9 | 540 | if ((disabled_auth_mask & (SSL_aGOST01 | SSL_aGOST12)) == (SSL_aGOST01 | SSL_aGOST12)) |
633d49c7 | 541 | disabled_mkey_mask |= SSL_kGOST; |
0f113f3e MC |
542 | } |
543 | ||
09b6c2ef DSH |
544 | #ifndef OPENSSL_NO_COMP |
545 | ||
0f113f3e MC |
546 | static int sk_comp_cmp(const SSL_COMP *const *a, const SSL_COMP *const *b) |
547 | { | |
548 | return ((*a)->id - (*b)->id); | |
549 | } | |
7ba666fa RL |
550 | |
551 | static void load_builtin_compressions(void) | |
0f113f3e MC |
552 | { |
553 | int got_write_lock = 0; | |
554 | ||
555 | CRYPTO_r_lock(CRYPTO_LOCK_SSL); | |
556 | if (ssl_comp_methods == NULL) { | |
557 | CRYPTO_r_unlock(CRYPTO_LOCK_SSL); | |
558 | CRYPTO_w_lock(CRYPTO_LOCK_SSL); | |
559 | got_write_lock = 1; | |
560 | ||
561 | if (ssl_comp_methods == NULL) { | |
562 | SSL_COMP *comp = NULL; | |
9a555706 | 563 | COMP_METHOD *method = COMP_zlib(); |
0f113f3e | 564 | |
bbd86bf5 | 565 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); |
0f113f3e | 566 | ssl_comp_methods = sk_SSL_COMP_new(sk_comp_cmp); |
9a555706 RS |
567 | if (COMP_get_type(method) != NID_undef |
568 | && ssl_comp_methods != NULL) { | |
b4faea50 | 569 | comp = OPENSSL_malloc(sizeof(*comp)); |
0f113f3e | 570 | if (comp != NULL) { |
9a555706 RS |
571 | comp->method = method; |
572 | comp->id = SSL_COMP_ZLIB_IDX; | |
573 | comp->name = COMP_get_name(method); | |
574 | sk_SSL_COMP_push(ssl_comp_methods, comp); | |
575 | sk_SSL_COMP_sort(ssl_comp_methods); | |
0f113f3e | 576 | } |
0f113f3e | 577 | } |
bbd86bf5 | 578 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e MC |
579 | } |
580 | } | |
581 | ||
582 | if (got_write_lock) | |
583 | CRYPTO_w_unlock(CRYPTO_LOCK_SSL); | |
584 | else | |
585 | CRYPTO_r_unlock(CRYPTO_LOCK_SSL); | |
586 | } | |
09b6c2ef | 587 | #endif |
7ba666fa | 588 | |
0821bcd4 | 589 | int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc, |
0f113f3e MC |
590 | const EVP_MD **md, int *mac_pkey_type, |
591 | int *mac_secret_size, SSL_COMP **comp, int use_etm) | |
592 | { | |
593 | int i; | |
594 | const SSL_CIPHER *c; | |
595 | ||
596 | c = s->cipher; | |
597 | if (c == NULL) | |
598 | return (0); | |
599 | if (comp != NULL) { | |
600 | SSL_COMP ctmp; | |
09b6c2ef | 601 | #ifndef OPENSSL_NO_COMP |
0f113f3e | 602 | load_builtin_compressions(); |
09b6c2ef | 603 | #endif |
413c4f45 | 604 | |
0f113f3e MC |
605 | *comp = NULL; |
606 | ctmp.id = s->compress_meth; | |
607 | if (ssl_comp_methods != NULL) { | |
608 | i = sk_SSL_COMP_find(ssl_comp_methods, &ctmp); | |
609 | if (i >= 0) | |
610 | *comp = sk_SSL_COMP_value(ssl_comp_methods, i); | |
611 | else | |
612 | *comp = NULL; | |
613 | } | |
69f68237 | 614 | /* If were only interested in comp then return success */ |
61986d32 | 615 | if ((enc == NULL) && (md == NULL)) |
69f68237 | 616 | return 1; |
0f113f3e MC |
617 | } |
618 | ||
619 | if ((enc == NULL) || (md == NULL)) | |
69f68237 | 620 | return 0; |
0f113f3e | 621 | |
98c9ce2f | 622 | i = ssl_cipher_info_lookup(ssl_cipher_table_cipher, c->algorithm_enc); |
0f113f3e | 623 | |
98c9ce2f | 624 | if (i == -1) |
0f113f3e MC |
625 | *enc = NULL; |
626 | else { | |
627 | if (i == SSL_ENC_NULL_IDX) | |
628 | *enc = EVP_enc_null(); | |
629 | else | |
630 | *enc = ssl_cipher_methods[i]; | |
631 | } | |
632 | ||
98c9ce2f DSH |
633 | i = ssl_cipher_info_lookup(ssl_cipher_table_mac, c->algorithm_mac); |
634 | if (i == -1) { | |
0f113f3e MC |
635 | *md = NULL; |
636 | if (mac_pkey_type != NULL) | |
637 | *mac_pkey_type = NID_undef; | |
638 | if (mac_secret_size != NULL) | |
639 | *mac_secret_size = 0; | |
640 | if (c->algorithm_mac == SSL_AEAD) | |
641 | mac_pkey_type = NULL; | |
642 | } else { | |
643 | *md = ssl_digest_methods[i]; | |
644 | if (mac_pkey_type != NULL) | |
645 | *mac_pkey_type = ssl_mac_pkey_id[i]; | |
646 | if (mac_secret_size != NULL) | |
647 | *mac_secret_size = ssl_mac_secret_size[i]; | |
648 | } | |
649 | ||
650 | if ((*enc != NULL) && | |
651 | (*md != NULL || (EVP_CIPHER_flags(*enc) & EVP_CIPH_FLAG_AEAD_CIPHER)) | |
652 | && (!mac_pkey_type || *mac_pkey_type != NID_undef)) { | |
653 | const EVP_CIPHER *evp; | |
654 | ||
655 | if (use_etm) | |
656 | return 1; | |
657 | ||
658 | if (s->ssl_version >> 8 != TLS1_VERSION_MAJOR || | |
659 | s->ssl_version < TLS1_VERSION) | |
660 | return 1; | |
661 | ||
662 | if (FIPS_mode()) | |
663 | return 1; | |
664 | ||
665 | if (c->algorithm_enc == SSL_RC4 && | |
666 | c->algorithm_mac == SSL_MD5 && | |
667 | (evp = EVP_get_cipherbyname("RC4-HMAC-MD5"))) | |
668 | *enc = evp, *md = NULL; | |
669 | else if (c->algorithm_enc == SSL_AES128 && | |
670 | c->algorithm_mac == SSL_SHA1 && | |
671 | (evp = EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA1"))) | |
672 | *enc = evp, *md = NULL; | |
673 | else if (c->algorithm_enc == SSL_AES256 && | |
674 | c->algorithm_mac == SSL_SHA1 && | |
675 | (evp = EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA1"))) | |
676 | *enc = evp, *md = NULL; | |
677 | else if (c->algorithm_enc == SSL_AES128 && | |
678 | c->algorithm_mac == SSL_SHA256 && | |
679 | (evp = EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA256"))) | |
680 | *enc = evp, *md = NULL; | |
681 | else if (c->algorithm_enc == SSL_AES256 && | |
682 | c->algorithm_mac == SSL_SHA256 && | |
683 | (evp = EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA256"))) | |
684 | *enc = evp, *md = NULL; | |
685 | return (1); | |
686 | } else | |
687 | return (0); | |
688 | } | |
689 | ||
152fbc28 | 690 | const EVP_MD *ssl_md(int idx) |
81025661 | 691 | { |
28ba2541 DSH |
692 | idx &= SSL_HANDSHAKE_MAC_MASK; |
693 | if (idx < 0 || idx >= SSL_MD_NUM_IDX) | |
694 | return NULL; | |
695 | return ssl_digest_methods[idx]; | |
696 | } | |
697 | ||
698 | const EVP_MD *ssl_handshake_md(SSL *s) | |
699 | { | |
152fbc28 | 700 | return ssl_md(ssl_get_algorithm2(s)); |
28ba2541 DSH |
701 | } |
702 | ||
703 | const EVP_MD *ssl_prf_md(SSL *s) | |
704 | { | |
152fbc28 | 705 | return ssl_md(ssl_get_algorithm2(s) >> TLS1_PRF_DGST_SHIFT); |
81025661 DSH |
706 | } |
707 | ||
58964a49 | 708 | #define ITEM_SEP(a) \ |
0f113f3e | 709 | (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ',')) |
58964a49 | 710 | |
6b691a5c | 711 | static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr, |
0f113f3e MC |
712 | CIPHER_ORDER **tail) |
713 | { | |
714 | if (curr == *tail) | |
715 | return; | |
716 | if (curr == *head) | |
717 | *head = curr->next; | |
718 | if (curr->prev != NULL) | |
719 | curr->prev->next = curr->next; | |
720 | if (curr->next != NULL) | |
721 | curr->next->prev = curr->prev; | |
722 | (*tail)->next = curr; | |
723 | curr->prev = *tail; | |
724 | curr->next = NULL; | |
725 | *tail = curr; | |
726 | } | |
58964a49 | 727 | |
fd5bc65c | 728 | static void ll_append_head(CIPHER_ORDER **head, CIPHER_ORDER *curr, |
0f113f3e MC |
729 | CIPHER_ORDER **tail) |
730 | { | |
731 | if (curr == *head) | |
732 | return; | |
733 | if (curr == *tail) | |
734 | *tail = curr->prev; | |
735 | if (curr->next != NULL) | |
736 | curr->next->prev = curr->prev; | |
737 | if (curr->prev != NULL) | |
738 | curr->prev->next = curr->next; | |
739 | (*head)->prev = curr; | |
740 | curr->next = *head; | |
741 | curr->prev = NULL; | |
742 | *head = curr; | |
743 | } | |
744 | ||
018e57c7 | 745 | static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method, |
0f113f3e | 746 | int num_of_ciphers, |
90d9e49a DSH |
747 | uint32_t disabled_mkey, |
748 | uint32_t disabled_auth, | |
749 | uint32_t disabled_enc, | |
750 | uint32_t disabled_mac, | |
751 | uint32_t disabled_ssl, | |
0f113f3e MC |
752 | CIPHER_ORDER *co_list, |
753 | CIPHER_ORDER **head_p, | |
754 | CIPHER_ORDER **tail_p) | |
755 | { | |
756 | int i, co_list_num; | |
757 | const SSL_CIPHER *c; | |
758 | ||
759 | /* | |
760 | * We have num_of_ciphers descriptions compiled in, depending on the | |
761 | * method selected (SSLv3, TLSv1 etc). | |
762 | * These will later be sorted in a linked list with at most num | |
763 | * entries. | |
764 | */ | |
765 | ||
766 | /* Get the initial list of ciphers */ | |
767 | co_list_num = 0; /* actual count of ciphers */ | |
768 | for (i = 0; i < num_of_ciphers; i++) { | |
769 | c = ssl_method->get_cipher(i); | |
770 | /* drop those that use any of that is not available */ | |
771 | if ((c != NULL) && c->valid && | |
772 | (!FIPS_mode() || (c->algo_strength & SSL_FIPS)) && | |
773 | !(c->algorithm_mkey & disabled_mkey) && | |
774 | !(c->algorithm_auth & disabled_auth) && | |
775 | !(c->algorithm_enc & disabled_enc) && | |
776 | !(c->algorithm_mac & disabled_mac) && | |
777 | !(c->algorithm_ssl & disabled_ssl)) { | |
778 | co_list[co_list_num].cipher = c; | |
779 | co_list[co_list_num].next = NULL; | |
780 | co_list[co_list_num].prev = NULL; | |
781 | co_list[co_list_num].active = 0; | |
782 | co_list_num++; | |
0f113f3e MC |
783 | /* |
784 | * if (!sk_push(ca_list,(char *)c)) goto err; | |
785 | */ | |
786 | } | |
787 | } | |
788 | ||
789 | /* | |
790 | * Prepare linked list from list entries | |
791 | */ | |
792 | if (co_list_num > 0) { | |
793 | co_list[0].prev = NULL; | |
794 | ||
795 | if (co_list_num > 1) { | |
796 | co_list[0].next = &co_list[1]; | |
797 | ||
798 | for (i = 1; i < co_list_num - 1; i++) { | |
799 | co_list[i].prev = &co_list[i - 1]; | |
800 | co_list[i].next = &co_list[i + 1]; | |
801 | } | |
802 | ||
803 | co_list[co_list_num - 1].prev = &co_list[co_list_num - 2]; | |
804 | } | |
805 | ||
806 | co_list[co_list_num - 1].next = NULL; | |
807 | ||
808 | *head_p = &co_list[0]; | |
809 | *tail_p = &co_list[co_list_num - 1]; | |
810 | } | |
811 | } | |
d02b48c6 | 812 | |
babb3798 | 813 | static void ssl_cipher_collect_aliases(const SSL_CIPHER **ca_list, |
0f113f3e | 814 | int num_of_group_aliases, |
90d9e49a DSH |
815 | uint32_t disabled_mkey, |
816 | uint32_t disabled_auth, | |
817 | uint32_t disabled_enc, | |
818 | uint32_t disabled_mac, | |
819 | uint32_t disabled_ssl, | |
0f113f3e MC |
820 | CIPHER_ORDER *head) |
821 | { | |
822 | CIPHER_ORDER *ciph_curr; | |
823 | const SSL_CIPHER **ca_curr; | |
824 | int i; | |
90d9e49a DSH |
825 | uint32_t mask_mkey = ~disabled_mkey; |
826 | uint32_t mask_auth = ~disabled_auth; | |
827 | uint32_t mask_enc = ~disabled_enc; | |
828 | uint32_t mask_mac = ~disabled_mac; | |
829 | uint32_t mask_ssl = ~disabled_ssl; | |
0f113f3e MC |
830 | |
831 | /* | |
832 | * First, add the real ciphers as already collected | |
833 | */ | |
834 | ciph_curr = head; | |
835 | ca_curr = ca_list; | |
836 | while (ciph_curr != NULL) { | |
837 | *ca_curr = ciph_curr->cipher; | |
838 | ca_curr++; | |
839 | ciph_curr = ciph_curr->next; | |
840 | } | |
841 | ||
842 | /* | |
843 | * Now we add the available ones from the cipher_aliases[] table. | |
844 | * They represent either one or more algorithms, some of which | |
845 | * in any affected category must be supported (set in enabled_mask), | |
846 | * or represent a cipher strength value (will be added in any case because algorithms=0). | |
847 | */ | |
848 | for (i = 0; i < num_of_group_aliases; i++) { | |
90d9e49a DSH |
849 | uint32_t algorithm_mkey = cipher_aliases[i].algorithm_mkey; |
850 | uint32_t algorithm_auth = cipher_aliases[i].algorithm_auth; | |
851 | uint32_t algorithm_enc = cipher_aliases[i].algorithm_enc; | |
852 | uint32_t algorithm_mac = cipher_aliases[i].algorithm_mac; | |
853 | uint32_t algorithm_ssl = cipher_aliases[i].algorithm_ssl; | |
0f113f3e MC |
854 | |
855 | if (algorithm_mkey) | |
856 | if ((algorithm_mkey & mask_mkey) == 0) | |
857 | continue; | |
858 | ||
859 | if (algorithm_auth) | |
860 | if ((algorithm_auth & mask_auth) == 0) | |
861 | continue; | |
862 | ||
863 | if (algorithm_enc) | |
864 | if ((algorithm_enc & mask_enc) == 0) | |
865 | continue; | |
866 | ||
867 | if (algorithm_mac) | |
868 | if ((algorithm_mac & mask_mac) == 0) | |
869 | continue; | |
870 | ||
871 | if (algorithm_ssl) | |
872 | if ((algorithm_ssl & mask_ssl) == 0) | |
873 | continue; | |
874 | ||
875 | *ca_curr = (SSL_CIPHER *)(cipher_aliases + i); | |
876 | ca_curr++; | |
877 | } | |
878 | ||
879 | *ca_curr = NULL; /* end of list */ | |
880 | } | |
d02b48c6 | 881 | |
90d9e49a DSH |
882 | static void ssl_cipher_apply_rule(uint32_t cipher_id, uint32_t alg_mkey, |
883 | uint32_t alg_auth, uint32_t alg_enc, | |
884 | uint32_t alg_mac, uint32_t alg_ssl, | |
885 | uint32_t algo_strength, int rule, | |
886 | int32_t strength_bits, CIPHER_ORDER **head_p, | |
0f113f3e MC |
887 | CIPHER_ORDER **tail_p) |
888 | { | |
889 | CIPHER_ORDER *head, *tail, *curr, *next, *last; | |
890 | const SSL_CIPHER *cp; | |
891 | int reverse = 0; | |
018e57c7 DSH |
892 | |
893 | #ifdef CIPHER_DEBUG | |
0f113f3e | 894 | fprintf(stderr, |
d1776fde | 895 | "Applying rule %d with %08x/%08x/%08x/%08x/%08x %08x (%d)\n", |
0f113f3e MC |
896 | rule, alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, |
897 | algo_strength, strength_bits); | |
018e57c7 | 898 | #endif |
d02b48c6 | 899 | |
0f113f3e MC |
900 | if (rule == CIPHER_DEL) |
901 | reverse = 1; /* needed to maintain sorting between | |
902 | * currently deleted ciphers */ | |
903 | ||
904 | head = *head_p; | |
905 | tail = *tail_p; | |
906 | ||
907 | if (reverse) { | |
908 | next = tail; | |
909 | last = head; | |
910 | } else { | |
911 | next = head; | |
912 | last = tail; | |
913 | } | |
914 | ||
915 | curr = NULL; | |
916 | for (;;) { | |
917 | if (curr == last) | |
918 | break; | |
919 | ||
920 | curr = next; | |
921 | ||
922 | if (curr == NULL) | |
923 | break; | |
924 | ||
925 | next = reverse ? curr->prev : curr->next; | |
926 | ||
927 | cp = curr->cipher; | |
928 | ||
929 | /* | |
930 | * Selection criteria is either the value of strength_bits | |
931 | * or the algorithms used. | |
932 | */ | |
933 | if (strength_bits >= 0) { | |
934 | if (strength_bits != cp->strength_bits) | |
935 | continue; | |
936 | } else { | |
018e57c7 | 937 | #ifdef CIPHER_DEBUG |
0f113f3e | 938 | fprintf(stderr, |
d1776fde | 939 | "\nName: %s:\nAlgo = %08x/%08x/%08x/%08x/%08x Algo_strength = %08x\n", |
0f113f3e MC |
940 | cp->name, cp->algorithm_mkey, cp->algorithm_auth, |
941 | cp->algorithm_enc, cp->algorithm_mac, cp->algorithm_ssl, | |
942 | cp->algo_strength); | |
323fa645 | 943 | #endif |
0f113f3e MC |
944 | if (alg_mkey && !(alg_mkey & cp->algorithm_mkey)) |
945 | continue; | |
946 | if (alg_auth && !(alg_auth & cp->algorithm_auth)) | |
947 | continue; | |
948 | if (alg_enc && !(alg_enc & cp->algorithm_enc)) | |
949 | continue; | |
950 | if (alg_mac && !(alg_mac & cp->algorithm_mac)) | |
951 | continue; | |
952 | if (alg_ssl && !(alg_ssl & cp->algorithm_ssl)) | |
953 | continue; | |
361a1191 | 954 | if (algo_strength && !(algo_strength & cp->algo_strength)) |
0f113f3e | 955 | continue; |
c84f7f4a MC |
956 | if ((algo_strength & SSL_DEFAULT_MASK) |
957 | && !(algo_strength & SSL_DEFAULT_MASK & cp->algo_strength)) | |
958 | continue; | |
0f113f3e | 959 | } |
018e57c7 DSH |
960 | |
961 | #ifdef CIPHER_DEBUG | |
0f113f3e | 962 | fprintf(stderr, "Action = %d\n", rule); |
018e57c7 DSH |
963 | #endif |
964 | ||
0f113f3e MC |
965 | /* add the cipher if it has not been added yet. */ |
966 | if (rule == CIPHER_ADD) { | |
967 | /* reverse == 0 */ | |
968 | if (!curr->active) { | |
969 | ll_append_tail(&head, curr, &tail); | |
970 | curr->active = 1; | |
971 | } | |
972 | } | |
973 | /* Move the added cipher to this location */ | |
974 | else if (rule == CIPHER_ORD) { | |
975 | /* reverse == 0 */ | |
976 | if (curr->active) { | |
977 | ll_append_tail(&head, curr, &tail); | |
978 | } | |
979 | } else if (rule == CIPHER_DEL) { | |
980 | /* reverse == 1 */ | |
981 | if (curr->active) { | |
982 | /* | |
983 | * most recently deleted ciphersuites get best positions for | |
984 | * any future CIPHER_ADD (note that the CIPHER_DEL loop works | |
985 | * in reverse to maintain the order) | |
986 | */ | |
987 | ll_append_head(&head, curr, &tail); | |
988 | curr->active = 0; | |
989 | } | |
990 | } else if (rule == CIPHER_KILL) { | |
991 | /* reverse == 0 */ | |
992 | if (head == curr) | |
993 | head = curr->next; | |
994 | else | |
995 | curr->prev->next = curr->next; | |
996 | if (tail == curr) | |
997 | tail = curr->prev; | |
998 | curr->active = 0; | |
999 | if (curr->next != NULL) | |
1000 | curr->next->prev = curr->prev; | |
1001 | if (curr->prev != NULL) | |
1002 | curr->prev->next = curr->next; | |
1003 | curr->next = NULL; | |
1004 | curr->prev = NULL; | |
1005 | } | |
1006 | } | |
1007 | ||
1008 | *head_p = head; | |
1009 | *tail_p = tail; | |
1010 | } | |
018e57c7 | 1011 | |
a717831d | 1012 | static int ssl_cipher_strength_sort(CIPHER_ORDER **head_p, |
0f113f3e MC |
1013 | CIPHER_ORDER **tail_p) |
1014 | { | |
90d9e49a DSH |
1015 | int32_t max_strength_bits; |
1016 | int i, *number_uses; | |
0f113f3e MC |
1017 | CIPHER_ORDER *curr; |
1018 | ||
1019 | /* | |
1020 | * This routine sorts the ciphers with descending strength. The sorting | |
1021 | * must keep the pre-sorted sequence, so we apply the normal sorting | |
1022 | * routine as '+' movement to the end of the list. | |
1023 | */ | |
1024 | max_strength_bits = 0; | |
1025 | curr = *head_p; | |
1026 | while (curr != NULL) { | |
1027 | if (curr->active && (curr->cipher->strength_bits > max_strength_bits)) | |
1028 | max_strength_bits = curr->cipher->strength_bits; | |
1029 | curr = curr->next; | |
1030 | } | |
1031 | ||
b51bce94 | 1032 | number_uses = OPENSSL_zalloc(sizeof(int) * (max_strength_bits + 1)); |
a71edf3b | 1033 | if (number_uses == NULL) { |
0f113f3e MC |
1034 | SSLerr(SSL_F_SSL_CIPHER_STRENGTH_SORT, ERR_R_MALLOC_FAILURE); |
1035 | return (0); | |
1036 | } | |
0f113f3e MC |
1037 | |
1038 | /* | |
1039 | * Now find the strength_bits values actually used | |
1040 | */ | |
1041 | curr = *head_p; | |
1042 | while (curr != NULL) { | |
1043 | if (curr->active) | |
1044 | number_uses[curr->cipher->strength_bits]++; | |
1045 | curr = curr->next; | |
1046 | } | |
1047 | /* | |
1048 | * Go through the list of used strength_bits values in descending | |
1049 | * order. | |
1050 | */ | |
1051 | for (i = max_strength_bits; i >= 0; i--) | |
1052 | if (number_uses[i] > 0) | |
1053 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ORD, i, head_p, | |
1054 | tail_p); | |
1055 | ||
1056 | OPENSSL_free(number_uses); | |
1057 | return (1); | |
1058 | } | |
018e57c7 DSH |
1059 | |
1060 | static int ssl_cipher_process_rulestr(const char *rule_str, | |
0f113f3e MC |
1061 | CIPHER_ORDER **head_p, |
1062 | CIPHER_ORDER **tail_p, | |
1063 | const SSL_CIPHER **ca_list, CERT *c) | |
1064 | { | |
90d9e49a | 1065 | uint32_t alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength; |
0f113f3e MC |
1066 | const char *l, *buf; |
1067 | int j, multi, found, rule, retval, ok, buflen; | |
90d9e49a | 1068 | uint32_t cipher_id = 0; |
0f113f3e MC |
1069 | char ch; |
1070 | ||
1071 | retval = 1; | |
1072 | l = rule_str; | |
1073 | for (;;) { | |
1074 | ch = *l; | |
1075 | ||
1076 | if (ch == '\0') | |
1077 | break; /* done */ | |
1078 | if (ch == '-') { | |
1079 | rule = CIPHER_DEL; | |
1080 | l++; | |
1081 | } else if (ch == '+') { | |
1082 | rule = CIPHER_ORD; | |
1083 | l++; | |
1084 | } else if (ch == '!') { | |
1085 | rule = CIPHER_KILL; | |
1086 | l++; | |
1087 | } else if (ch == '@') { | |
1088 | rule = CIPHER_SPECIAL; | |
1089 | l++; | |
1090 | } else { | |
1091 | rule = CIPHER_ADD; | |
1092 | } | |
1093 | ||
1094 | if (ITEM_SEP(ch)) { | |
1095 | l++; | |
1096 | continue; | |
1097 | } | |
1098 | ||
1099 | alg_mkey = 0; | |
1100 | alg_auth = 0; | |
1101 | alg_enc = 0; | |
1102 | alg_mac = 0; | |
1103 | alg_ssl = 0; | |
1104 | algo_strength = 0; | |
1105 | ||
1106 | for (;;) { | |
1107 | ch = *l; | |
1108 | buf = l; | |
1109 | buflen = 0; | |
ca570cfd | 1110 | #ifndef CHARSET_EBCDIC |
0f113f3e MC |
1111 | while (((ch >= 'A') && (ch <= 'Z')) || |
1112 | ((ch >= '0') && (ch <= '9')) || | |
1113 | ((ch >= 'a') && (ch <= 'z')) || | |
1114 | (ch == '-') || (ch == '.') || (ch == '=')) | |
ca570cfd | 1115 | #else |
0f113f3e | 1116 | while (isalnum(ch) || (ch == '-') || (ch == '.') || (ch == '=')) |
ca570cfd | 1117 | #endif |
0f113f3e MC |
1118 | { |
1119 | ch = *(++l); | |
1120 | buflen++; | |
1121 | } | |
1122 | ||
1123 | if (buflen == 0) { | |
1124 | /* | |
1125 | * We hit something we cannot deal with, | |
1126 | * it is no command or separator nor | |
1127 | * alphanumeric, so we call this an error. | |
1128 | */ | |
1129 | SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, | |
1130 | SSL_R_INVALID_COMMAND); | |
1131 | retval = found = 0; | |
1132 | l++; | |
1133 | break; | |
1134 | } | |
1135 | ||
1136 | if (rule == CIPHER_SPECIAL) { | |
1137 | found = 0; /* unused -- avoid compiler warning */ | |
1138 | break; /* special treatment */ | |
1139 | } | |
1140 | ||
1141 | /* check for multi-part specification */ | |
1142 | if (ch == '+') { | |
1143 | multi = 1; | |
1144 | l++; | |
1145 | } else | |
1146 | multi = 0; | |
1147 | ||
1148 | /* | |
1149 | * Now search for the cipher alias in the ca_list. Be careful | |
1150 | * with the strncmp, because the "buflen" limitation | |
1151 | * will make the rule "ADH:SOME" and the cipher | |
1152 | * "ADH-MY-CIPHER" look like a match for buflen=3. | |
1153 | * So additionally check whether the cipher name found | |
1154 | * has the correct length. We can save a strlen() call: | |
1155 | * just checking for the '\0' at the right place is | |
1156 | * sufficient, we have to strncmp() anyway. (We cannot | |
1157 | * use strcmp(), because buf is not '\0' terminated.) | |
1158 | */ | |
1159 | j = found = 0; | |
1160 | cipher_id = 0; | |
1161 | while (ca_list[j]) { | |
86885c28 RS |
1162 | if (strncmp(buf, ca_list[j]->name, buflen) == 0 |
1163 | && (ca_list[j]->name[buflen] == '\0')) { | |
0f113f3e MC |
1164 | found = 1; |
1165 | break; | |
1166 | } else | |
1167 | j++; | |
1168 | } | |
1169 | ||
1170 | if (!found) | |
1171 | break; /* ignore this entry */ | |
1172 | ||
1173 | if (ca_list[j]->algorithm_mkey) { | |
1174 | if (alg_mkey) { | |
1175 | alg_mkey &= ca_list[j]->algorithm_mkey; | |
1176 | if (!alg_mkey) { | |
1177 | found = 0; | |
1178 | break; | |
1179 | } | |
1180 | } else | |
1181 | alg_mkey = ca_list[j]->algorithm_mkey; | |
1182 | } | |
1183 | ||
1184 | if (ca_list[j]->algorithm_auth) { | |
1185 | if (alg_auth) { | |
1186 | alg_auth &= ca_list[j]->algorithm_auth; | |
1187 | if (!alg_auth) { | |
1188 | found = 0; | |
1189 | break; | |
1190 | } | |
1191 | } else | |
1192 | alg_auth = ca_list[j]->algorithm_auth; | |
1193 | } | |
1194 | ||
1195 | if (ca_list[j]->algorithm_enc) { | |
1196 | if (alg_enc) { | |
1197 | alg_enc &= ca_list[j]->algorithm_enc; | |
1198 | if (!alg_enc) { | |
1199 | found = 0; | |
1200 | break; | |
1201 | } | |
1202 | } else | |
1203 | alg_enc = ca_list[j]->algorithm_enc; | |
1204 | } | |
1205 | ||
1206 | if (ca_list[j]->algorithm_mac) { | |
1207 | if (alg_mac) { | |
1208 | alg_mac &= ca_list[j]->algorithm_mac; | |
1209 | if (!alg_mac) { | |
1210 | found = 0; | |
1211 | break; | |
1212 | } | |
1213 | } else | |
1214 | alg_mac = ca_list[j]->algorithm_mac; | |
1215 | } | |
1216 | ||
361a1191 KR |
1217 | if (ca_list[j]->algo_strength) { |
1218 | if (algo_strength) { | |
1219 | algo_strength &= ca_list[j]->algo_strength; | |
1220 | if (!algo_strength) { | |
0f113f3e MC |
1221 | found = 0; |
1222 | break; | |
1223 | } | |
1224 | } else | |
361a1191 | 1225 | algo_strength = ca_list[j]->algo_strength; |
0f113f3e MC |
1226 | } |
1227 | ||
c84f7f4a MC |
1228 | if (ca_list[j]->algo_strength & SSL_DEFAULT_MASK) { |
1229 | if (algo_strength & SSL_DEFAULT_MASK) { | |
1230 | algo_strength &= | |
1231 | (ca_list[j]->algo_strength & SSL_DEFAULT_MASK) | | |
1232 | ~SSL_DEFAULT_MASK; | |
1233 | if (!(algo_strength & SSL_DEFAULT_MASK)) { | |
1234 | found = 0; | |
1235 | break; | |
1236 | } | |
1237 | } else | |
1238 | algo_strength |= | |
1239 | ca_list[j]->algo_strength & SSL_DEFAULT_MASK; | |
1240 | } | |
1241 | ||
0f113f3e MC |
1242 | if (ca_list[j]->valid) { |
1243 | /* | |
1244 | * explicit ciphersuite found; its protocol version does not | |
1245 | * become part of the search pattern! | |
1246 | */ | |
1247 | ||
1248 | cipher_id = ca_list[j]->id; | |
1249 | } else { | |
1250 | /* | |
1251 | * not an explicit ciphersuite; only in this case, the | |
1252 | * protocol version is considered part of the search pattern | |
1253 | */ | |
1254 | ||
1255 | if (ca_list[j]->algorithm_ssl) { | |
1256 | if (alg_ssl) { | |
1257 | alg_ssl &= ca_list[j]->algorithm_ssl; | |
1258 | if (!alg_ssl) { | |
1259 | found = 0; | |
1260 | break; | |
1261 | } | |
1262 | } else | |
1263 | alg_ssl = ca_list[j]->algorithm_ssl; | |
1264 | } | |
1265 | } | |
1266 | ||
1267 | if (!multi) | |
1268 | break; | |
1269 | } | |
1270 | ||
1271 | /* | |
1272 | * Ok, we have the rule, now apply it | |
1273 | */ | |
1274 | if (rule == CIPHER_SPECIAL) { /* special command */ | |
1275 | ok = 0; | |
86885c28 | 1276 | if ((buflen == 8) && strncmp(buf, "STRENGTH", 8) == 0) |
0f113f3e | 1277 | ok = ssl_cipher_strength_sort(head_p, tail_p); |
86885c28 | 1278 | else if (buflen == 10 && strncmp(buf, "SECLEVEL=", 9) == 0) { |
0f113f3e MC |
1279 | int level = buf[9] - '0'; |
1280 | if (level < 0 || level > 5) { | |
1281 | SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, | |
1282 | SSL_R_INVALID_COMMAND); | |
1283 | } else { | |
1284 | c->sec_level = level; | |
1285 | ok = 1; | |
1286 | } | |
1287 | } else | |
1288 | SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, | |
1289 | SSL_R_INVALID_COMMAND); | |
1290 | if (ok == 0) | |
1291 | retval = 0; | |
1292 | /* | |
1293 | * We do not support any "multi" options | |
1294 | * together with "@", so throw away the | |
1295 | * rest of the command, if any left, until | |
1296 | * end or ':' is found. | |
1297 | */ | |
1298 | while ((*l != '\0') && !ITEM_SEP(*l)) | |
1299 | l++; | |
1300 | } else if (found) { | |
1301 | ssl_cipher_apply_rule(cipher_id, | |
1302 | alg_mkey, alg_auth, alg_enc, alg_mac, | |
1303 | alg_ssl, algo_strength, rule, -1, head_p, | |
1304 | tail_p); | |
1305 | } else { | |
1306 | while ((*l != '\0') && !ITEM_SEP(*l)) | |
1307 | l++; | |
1308 | } | |
1309 | if (*l == '\0') | |
1310 | break; /* done */ | |
1311 | } | |
1312 | ||
1313 | return (retval); | |
1314 | } | |
1315 | ||
14536c8c | 1316 | #ifndef OPENSSL_NO_EC |
2ea80354 | 1317 | static int check_suiteb_cipher_list(const SSL_METHOD *meth, CERT *c, |
0f113f3e MC |
1318 | const char **prule_str) |
1319 | { | |
1320 | unsigned int suiteb_flags = 0, suiteb_comb2 = 0; | |
13e228d6 | 1321 | if (strncmp(*prule_str, "SUITEB128ONLY", 13) == 0) { |
0f113f3e | 1322 | suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS_ONLY; |
13e228d6 | 1323 | } else if (strncmp(*prule_str, "SUITEB128C2", 11) == 0) { |
0f113f3e MC |
1324 | suiteb_comb2 = 1; |
1325 | suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS; | |
13e228d6 DSH |
1326 | } else if (strncmp(*prule_str, "SUITEB128", 9) == 0) { |
1327 | suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS; | |
1328 | } else if (strncmp(*prule_str, "SUITEB192", 9) == 0) { | |
0f113f3e | 1329 | suiteb_flags = SSL_CERT_FLAG_SUITEB_192_LOS; |
13e228d6 | 1330 | } |
0f113f3e MC |
1331 | |
1332 | if (suiteb_flags) { | |
1333 | c->cert_flags &= ~SSL_CERT_FLAG_SUITEB_128_LOS; | |
1334 | c->cert_flags |= suiteb_flags; | |
1335 | } else | |
1336 | suiteb_flags = c->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS; | |
1337 | ||
1338 | if (!suiteb_flags) | |
1339 | return 1; | |
1340 | /* Check version: if TLS 1.2 ciphers allowed we can use Suite B */ | |
1341 | ||
1342 | if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)) { | |
4fa52141 VD |
1343 | SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST, |
1344 | SSL_R_AT_LEAST_TLS_1_2_NEEDED_IN_SUITEB_MODE); | |
0f113f3e MC |
1345 | return 0; |
1346 | } | |
10bf4fc2 | 1347 | # ifndef OPENSSL_NO_EC |
0f113f3e MC |
1348 | switch (suiteb_flags) { |
1349 | case SSL_CERT_FLAG_SUITEB_128_LOS: | |
1350 | if (suiteb_comb2) | |
1351 | *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384"; | |
1352 | else | |
1353 | *prule_str = | |
1354 | "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384"; | |
1355 | break; | |
1356 | case SSL_CERT_FLAG_SUITEB_128_LOS_ONLY: | |
1357 | *prule_str = "ECDHE-ECDSA-AES128-GCM-SHA256"; | |
1358 | break; | |
1359 | case SSL_CERT_FLAG_SUITEB_192_LOS: | |
1360 | *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384"; | |
1361 | break; | |
1362 | } | |
0f113f3e MC |
1363 | return 1; |
1364 | # else | |
1365 | SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST, | |
1366 | SSL_R_ECDH_REQUIRED_FOR_SUITEB_MODE); | |
1367 | return 0; | |
1368 | # endif | |
1369 | } | |
14536c8c | 1370 | #endif |
2ea80354 | 1371 | |
0f113f3e MC |
1372 | STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method, STACK_OF(SSL_CIPHER) |
1373 | **cipher_list, STACK_OF(SSL_CIPHER) | |
1374 | **cipher_list_by_id, | |
1375 | const char *rule_str, CERT *c) | |
1376 | { | |
1377 | int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases; | |
90d9e49a | 1378 | uint32_t disabled_mkey, disabled_auth, disabled_enc, disabled_mac, |
0f113f3e MC |
1379 | disabled_ssl; |
1380 | STACK_OF(SSL_CIPHER) *cipherstack, *tmp_cipher_list; | |
1381 | const char *rule_p; | |
1382 | CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr; | |
1383 | const SSL_CIPHER **ca_list = NULL; | |
1384 | ||
1385 | /* | |
1386 | * Return with error if nothing to do. | |
1387 | */ | |
1388 | if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL) | |
1389 | return NULL; | |
14536c8c | 1390 | #ifndef OPENSSL_NO_EC |
0f113f3e MC |
1391 | if (!check_suiteb_cipher_list(ssl_method, c, &rule_str)) |
1392 | return NULL; | |
14536c8c | 1393 | #endif |
2ea80354 | 1394 | |
0f113f3e MC |
1395 | /* |
1396 | * To reduce the work to do we only want to process the compiled | |
1397 | * in algorithms, so we first get the mask of disabled ciphers. | |
1398 | */ | |
633d49c7 DSH |
1399 | |
1400 | disabled_mkey = disabled_mkey_mask; | |
1401 | disabled_auth = disabled_auth_mask; | |
1402 | disabled_enc = disabled_enc_mask; | |
1403 | disabled_mac = disabled_mac_mask; | |
1404 | disabled_ssl = 0; | |
0f113f3e MC |
1405 | |
1406 | /* | |
1407 | * Now we have to collect the available ciphers from the compiled | |
1408 | * in ciphers. We cannot get more than the number compiled in, so | |
1409 | * it is used for allocation. | |
1410 | */ | |
1411 | num_of_ciphers = ssl_method->num_ciphers(); | |
55a9a16f | 1412 | |
b4faea50 | 1413 | co_list = OPENSSL_malloc(sizeof(*co_list) * num_of_ciphers); |
0f113f3e MC |
1414 | if (co_list == NULL) { |
1415 | SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
1416 | return (NULL); /* Failure */ | |
1417 | } | |
1418 | ||
1419 | ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers, | |
1420 | disabled_mkey, disabled_auth, disabled_enc, | |
1421 | disabled_mac, disabled_ssl, co_list, &head, | |
1422 | &tail); | |
1423 | ||
1424 | /* Now arrange all ciphers by preference: */ | |
1425 | ||
1426 | /* | |
1427 | * Everything else being equal, prefer ephemeral ECDH over other key | |
1428 | * exchange mechanisms | |
1429 | */ | |
1430 | ssl_cipher_apply_rule(0, SSL_kECDHE, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, | |
1431 | &tail); | |
1432 | ssl_cipher_apply_rule(0, SSL_kECDHE, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, | |
1433 | &tail); | |
1434 | ||
1435 | /* AES is our preferred symmetric cipher */ | |
1436 | ssl_cipher_apply_rule(0, 0, 0, SSL_AES, 0, 0, 0, CIPHER_ADD, -1, &head, | |
1437 | &tail); | |
1438 | ||
1439 | /* Temporarily enable everything else for sorting */ | |
1440 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail); | |
1441 | ||
1442 | /* Low priority for MD5 */ | |
1443 | ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5, 0, 0, CIPHER_ORD, -1, &head, | |
1444 | &tail); | |
1445 | ||
1446 | /* | |
1447 | * Move anonymous ciphers to the end. Usually, these will remain | |
1448 | * disabled. (For applications that allow them, they aren't too bad, but | |
1449 | * we prefer authenticated ciphers.) | |
1450 | */ | |
1451 | ssl_cipher_apply_rule(0, 0, SSL_aNULL, 0, 0, 0, 0, CIPHER_ORD, -1, &head, | |
1452 | &tail); | |
1453 | ||
0f113f3e MC |
1454 | /* |
1455 | * ssl_cipher_apply_rule(0, 0, SSL_aDH, 0, 0, 0, 0, CIPHER_ORD, -1, | |
1456 | * &head, &tail); | |
1457 | */ | |
1458 | ssl_cipher_apply_rule(0, SSL_kRSA, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head, | |
1459 | &tail); | |
1460 | ssl_cipher_apply_rule(0, SSL_kPSK, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head, | |
1461 | &tail); | |
0f113f3e MC |
1462 | |
1463 | /* RC4 is sort-of broken -- move the the end */ | |
1464 | ssl_cipher_apply_rule(0, 0, 0, SSL_RC4, 0, 0, 0, CIPHER_ORD, -1, &head, | |
1465 | &tail); | |
1466 | ||
1467 | /* | |
1468 | * Now sort by symmetric encryption strength. The above ordering remains | |
1469 | * in force within each class | |
1470 | */ | |
1471 | if (!ssl_cipher_strength_sort(&head, &tail)) { | |
1472 | OPENSSL_free(co_list); | |
1473 | return NULL; | |
1474 | } | |
1475 | ||
1476 | /* Now disable everything (maintaining the ordering!) */ | |
1477 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail); | |
1478 | ||
1479 | /* | |
1480 | * We also need cipher aliases for selecting based on the rule_str. | |
1481 | * There might be two types of entries in the rule_str: 1) names | |
1482 | * of ciphers themselves 2) aliases for groups of ciphers. | |
1483 | * For 1) we need the available ciphers and for 2) the cipher | |
1484 | * groups of cipher_aliases added together in one list (otherwise | |
1485 | * we would be happy with just the cipher_aliases table). | |
1486 | */ | |
b6eb9827 | 1487 | num_of_group_aliases = OSSL_NELEM(cipher_aliases); |
0f113f3e | 1488 | num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1; |
b4faea50 | 1489 | ca_list = OPENSSL_malloc(sizeof(*ca_list) * num_of_alias_max); |
0f113f3e MC |
1490 | if (ca_list == NULL) { |
1491 | OPENSSL_free(co_list); | |
1492 | SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
1493 | return (NULL); /* Failure */ | |
1494 | } | |
1495 | ssl_cipher_collect_aliases(ca_list, num_of_group_aliases, | |
1496 | disabled_mkey, disabled_auth, disabled_enc, | |
1497 | disabled_mac, disabled_ssl, head); | |
1498 | ||
1499 | /* | |
1500 | * If the rule_string begins with DEFAULT, apply the default rule | |
1501 | * before using the (possibly available) additional rules. | |
1502 | */ | |
1503 | ok = 1; | |
1504 | rule_p = rule_str; | |
1505 | if (strncmp(rule_str, "DEFAULT", 7) == 0) { | |
1506 | ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST, | |
1507 | &head, &tail, ca_list, c); | |
1508 | rule_p += 7; | |
1509 | if (*rule_p == ':') | |
1510 | rule_p++; | |
1511 | } | |
1512 | ||
1513 | if (ok && (strlen(rule_p) > 0)) | |
1514 | ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list, c); | |
1515 | ||
b548a1f1 | 1516 | OPENSSL_free(ca_list); /* Not needed anymore */ |
0f113f3e MC |
1517 | |
1518 | if (!ok) { /* Rule processing failure */ | |
1519 | OPENSSL_free(co_list); | |
1520 | return (NULL); | |
1521 | } | |
1522 | ||
1523 | /* | |
1524 | * Allocate new "cipherstack" for the result, return with error | |
1525 | * if we cannot get one. | |
1526 | */ | |
1527 | if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL) { | |
1528 | OPENSSL_free(co_list); | |
1529 | return (NULL); | |
1530 | } | |
1531 | ||
1532 | /* | |
1533 | * The cipher selection for the list is done. The ciphers are added | |
1534 | * to the resulting precedence to the STACK_OF(SSL_CIPHER). | |
1535 | */ | |
1536 | for (curr = head; curr != NULL; curr = curr->next) { | |
1537 | if (curr->active | |
1538 | && (!FIPS_mode() || curr->cipher->algo_strength & SSL_FIPS)) { | |
1539 | if (!sk_SSL_CIPHER_push(cipherstack, curr->cipher)) { | |
1540 | OPENSSL_free(co_list); | |
1541 | sk_SSL_CIPHER_free(cipherstack); | |
1542 | return NULL; | |
1543 | } | |
d02b48c6 | 1544 | #ifdef CIPHER_DEBUG |
0f113f3e | 1545 | fprintf(stderr, "<%s>\n", curr->cipher->name); |
d02b48c6 | 1546 | #endif |
0f113f3e MC |
1547 | } |
1548 | } | |
1549 | OPENSSL_free(co_list); /* Not needed any longer */ | |
1550 | ||
1551 | tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack); | |
1552 | if (tmp_cipher_list == NULL) { | |
1553 | sk_SSL_CIPHER_free(cipherstack); | |
1554 | return NULL; | |
1555 | } | |
25aaa98a | 1556 | sk_SSL_CIPHER_free(*cipher_list); |
0f113f3e MC |
1557 | *cipher_list = cipherstack; |
1558 | if (*cipher_list_by_id != NULL) | |
1559 | sk_SSL_CIPHER_free(*cipher_list_by_id); | |
1560 | *cipher_list_by_id = tmp_cipher_list; | |
1561 | (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id, | |
1562 | ssl_cipher_ptr_id_cmp); | |
1563 | ||
1564 | sk_SSL_CIPHER_sort(*cipher_list_by_id); | |
1565 | return (cipherstack); | |
1566 | } | |
d02b48c6 | 1567 | |
7689ed34 | 1568 | char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len) |
0f113f3e | 1569 | { |
361a1191 | 1570 | const char *ver; |
0f113f3e | 1571 | const char *kx, *au, *enc, *mac; |
baf245ec | 1572 | uint32_t alg_mkey, alg_auth, alg_enc, alg_mac; |
0f113f3e | 1573 | static const char *format = |
361a1191 | 1574 | "%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s\n"; |
0f113f3e | 1575 | |
baf245ec RS |
1576 | if (buf == NULL) { |
1577 | len = 128; | |
1578 | buf = OPENSSL_malloc(len); | |
1579 | if (buf == NULL) | |
1580 | return NULL; | |
1581 | } else if (len < 128) | |
1582 | return NULL; | |
1583 | ||
0f113f3e MC |
1584 | alg_mkey = cipher->algorithm_mkey; |
1585 | alg_auth = cipher->algorithm_auth; | |
1586 | alg_enc = cipher->algorithm_enc; | |
1587 | alg_mac = cipher->algorithm_mac; | |
0f113f3e | 1588 | |
baf245ec | 1589 | ver = SSL_CIPHER_get_version(cipher); |
0f113f3e MC |
1590 | |
1591 | switch (alg_mkey) { | |
1592 | case SSL_kRSA: | |
361a1191 | 1593 | kx = "RSA"; |
0f113f3e | 1594 | break; |
0f113f3e | 1595 | case SSL_kDHE: |
361a1191 | 1596 | kx = "DH"; |
0f113f3e | 1597 | break; |
0f113f3e MC |
1598 | case SSL_kECDHE: |
1599 | kx = "ECDH"; | |
1600 | break; | |
1601 | case SSL_kPSK: | |
1602 | kx = "PSK"; | |
1603 | break; | |
8baac6a2 DSH |
1604 | case SSL_kRSAPSK: |
1605 | kx = "RSAPSK"; | |
1606 | break; | |
1607 | case SSL_kECDHEPSK: | |
1608 | kx = "ECDHEPSK"; | |
1609 | break; | |
1610 | case SSL_kDHEPSK: | |
1611 | kx = "DHEPSK"; | |
1612 | break; | |
0f113f3e MC |
1613 | case SSL_kSRP: |
1614 | kx = "SRP"; | |
1615 | break; | |
1616 | case SSL_kGOST: | |
1617 | kx = "GOST"; | |
1618 | break; | |
1619 | default: | |
1620 | kx = "unknown"; | |
1621 | } | |
1622 | ||
1623 | switch (alg_auth) { | |
1624 | case SSL_aRSA: | |
1625 | au = "RSA"; | |
1626 | break; | |
1627 | case SSL_aDSS: | |
1628 | au = "DSS"; | |
1629 | break; | |
0f113f3e MC |
1630 | case SSL_aNULL: |
1631 | au = "None"; | |
1632 | break; | |
1633 | case SSL_aECDSA: | |
1634 | au = "ECDSA"; | |
1635 | break; | |
1636 | case SSL_aPSK: | |
1637 | au = "PSK"; | |
1638 | break; | |
1639 | case SSL_aSRP: | |
1640 | au = "SRP"; | |
1641 | break; | |
0f113f3e MC |
1642 | case SSL_aGOST01: |
1643 | au = "GOST01"; | |
1644 | break; | |
e44380a9 DB |
1645 | /* New GOST ciphersuites have both SSL_aGOST12 and SSL_aGOST01 bits */ |
1646 | case (SSL_aGOST12 | SSL_aGOST01): | |
1647 | au = "GOST12"; | |
1648 | break; | |
0f113f3e MC |
1649 | default: |
1650 | au = "unknown"; | |
1651 | break; | |
1652 | } | |
1653 | ||
1654 | switch (alg_enc) { | |
1655 | case SSL_DES: | |
361a1191 | 1656 | enc = "DES(56)"; |
0f113f3e MC |
1657 | break; |
1658 | case SSL_3DES: | |
1659 | enc = "3DES(168)"; | |
1660 | break; | |
1661 | case SSL_RC4: | |
361a1191 | 1662 | enc = "RC4(128)"; |
0f113f3e MC |
1663 | break; |
1664 | case SSL_RC2: | |
361a1191 | 1665 | enc = "RC2(128)"; |
0f113f3e MC |
1666 | break; |
1667 | case SSL_IDEA: | |
1668 | enc = "IDEA(128)"; | |
1669 | break; | |
1670 | case SSL_eNULL: | |
1671 | enc = "None"; | |
1672 | break; | |
1673 | case SSL_AES128: | |
1674 | enc = "AES(128)"; | |
1675 | break; | |
1676 | case SSL_AES256: | |
1677 | enc = "AES(256)"; | |
1678 | break; | |
1679 | case SSL_AES128GCM: | |
1680 | enc = "AESGCM(128)"; | |
1681 | break; | |
1682 | case SSL_AES256GCM: | |
1683 | enc = "AESGCM(256)"; | |
1684 | break; | |
e75c5a79 DSH |
1685 | case SSL_AES128CCM: |
1686 | enc = "AESCCM(128)"; | |
1687 | break; | |
1688 | case SSL_AES256CCM: | |
1689 | enc = "AESCCM(256)"; | |
1690 | break; | |
3d3701ea DSH |
1691 | case SSL_AES128CCM8: |
1692 | enc = "AESCCM8(128)"; | |
1693 | break; | |
1694 | case SSL_AES256CCM8: | |
1695 | enc = "AESCCM8(256)"; | |
1696 | break; | |
0f113f3e MC |
1697 | case SSL_CAMELLIA128: |
1698 | enc = "Camellia(128)"; | |
1699 | break; | |
1700 | case SSL_CAMELLIA256: | |
1701 | enc = "Camellia(256)"; | |
1702 | break; | |
1703 | case SSL_SEED: | |
1704 | enc = "SEED(128)"; | |
1705 | break; | |
1706 | case SSL_eGOST2814789CNT: | |
e44380a9 | 1707 | case SSL_eGOST2814789CNT12: |
0f113f3e MC |
1708 | enc = "GOST89(256)"; |
1709 | break; | |
0d3587c7 MC |
1710 | case SSL_CHACHA20POLY1305: |
1711 | enc = "CHACHA20/POLY1305(256)"; | |
1712 | break; | |
0f113f3e MC |
1713 | default: |
1714 | enc = "unknown"; | |
1715 | break; | |
1716 | } | |
1717 | ||
1718 | switch (alg_mac) { | |
1719 | case SSL_MD5: | |
1720 | mac = "MD5"; | |
1721 | break; | |
1722 | case SSL_SHA1: | |
1723 | mac = "SHA1"; | |
1724 | break; | |
1725 | case SSL_SHA256: | |
1726 | mac = "SHA256"; | |
1727 | break; | |
1728 | case SSL_SHA384: | |
1729 | mac = "SHA384"; | |
1730 | break; | |
1731 | case SSL_AEAD: | |
1732 | mac = "AEAD"; | |
1733 | break; | |
1734 | case SSL_GOST89MAC: | |
e44380a9 | 1735 | case SSL_GOST89MAC12: |
0f113f3e MC |
1736 | mac = "GOST89"; |
1737 | break; | |
1738 | case SSL_GOST94: | |
1739 | mac = "GOST94"; | |
1740 | break; | |
e44380a9 DB |
1741 | case SSL_GOST12_256: |
1742 | case SSL_GOST12_512: | |
1743 | mac = "GOST2012"; | |
1744 | break; | |
0f113f3e MC |
1745 | default: |
1746 | mac = "unknown"; | |
1747 | break; | |
1748 | } | |
1749 | ||
361a1191 | 1750 | BIO_snprintf(buf, len, format, cipher->name, ver, kx, au, enc, mac); |
55a9a16f | 1751 | |
0f113f3e MC |
1752 | return (buf); |
1753 | } | |
d02b48c6 | 1754 | |
0821bcd4 | 1755 | char *SSL_CIPHER_get_version(const SSL_CIPHER *c) |
0f113f3e | 1756 | { |
baf245ec | 1757 | uint32_t alg_ssl; |
0f113f3e MC |
1758 | |
1759 | if (c == NULL) | |
baf245ec RS |
1760 | return "(NONE)"; |
1761 | alg_ssl = c->algorithm_ssl; | |
1762 | ||
1763 | if (alg_ssl & SSL_SSLV3) | |
1764 | return "SSLv3"; | |
1765 | if (alg_ssl & SSL_TLSV1) | |
1766 | return "TLSv1.0"; | |
1767 | if (alg_ssl & SSL_TLSV1_2) | |
1768 | return "TLSv1.2"; | |
1769 | return "unknown"; | |
0f113f3e | 1770 | } |
d02b48c6 RE |
1771 | |
1772 | /* return the actual cipher being used */ | |
0821bcd4 | 1773 | const char *SSL_CIPHER_get_name(const SSL_CIPHER *c) |
0f113f3e MC |
1774 | { |
1775 | if (c != NULL) | |
1776 | return (c->name); | |
1777 | return ("(NONE)"); | |
1778 | } | |
d02b48c6 | 1779 | |
657e60fa | 1780 | /* number of bits for symmetric cipher */ |
1c86d8fd | 1781 | int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits) |
0f113f3e | 1782 | { |
1c86d8fd | 1783 | int ret = 0; |
0f113f3e MC |
1784 | |
1785 | if (c != NULL) { | |
1786 | if (alg_bits != NULL) | |
1c86d8fd VD |
1787 | *alg_bits = (int) c->alg_bits; |
1788 | ret = (int) c->strength_bits; | |
0f113f3e | 1789 | } |
90d9e49a | 1790 | return ret; |
0f113f3e | 1791 | } |
d02b48c6 | 1792 | |
90d9e49a | 1793 | uint32_t SSL_CIPHER_get_id(const SSL_CIPHER *c) |
0f113f3e MC |
1794 | { |
1795 | return c->id; | |
1796 | } | |
08557cf2 | 1797 | |
6b691a5c | 1798 | SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n) |
0f113f3e MC |
1799 | { |
1800 | SSL_COMP *ctmp; | |
1801 | int i, nn; | |
1802 | ||
1803 | if ((n == 0) || (sk == NULL)) | |
1804 | return (NULL); | |
1805 | nn = sk_SSL_COMP_num(sk); | |
1806 | for (i = 0; i < nn; i++) { | |
1807 | ctmp = sk_SSL_COMP_value(sk, i); | |
1808 | if (ctmp->id == n) | |
1809 | return (ctmp); | |
1810 | } | |
1811 | return (NULL); | |
1812 | } | |
413c4f45 | 1813 | |
09b6c2ef | 1814 | #ifdef OPENSSL_NO_COMP |
9a555706 | 1815 | STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void) |
0f113f3e MC |
1816 | { |
1817 | return NULL; | |
1818 | } | |
9a555706 RS |
1819 | STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP) |
1820 | *meths) | |
0f113f3e | 1821 | { |
9a555706 | 1822 | return meths; |
0f113f3e | 1823 | } |
9a555706 | 1824 | void SSL_COMP_free_compression_methods(void) |
0f113f3e | 1825 | { |
0f113f3e | 1826 | } |
9a555706 RS |
1827 | int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm) |
1828 | { | |
1829 | return 1; | |
1830 | } | |
1831 | ||
09b6c2ef | 1832 | #else |
6b691a5c | 1833 | STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void) |
0f113f3e MC |
1834 | { |
1835 | load_builtin_compressions(); | |
1836 | return (ssl_comp_methods); | |
1837 | } | |
1838 | ||
1839 | STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP) | |
1840 | *meths) | |
1841 | { | |
1842 | STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods; | |
1843 | ssl_comp_methods = meths; | |
1844 | return old_meths; | |
1845 | } | |
cbb67448 | 1846 | |
db7b5e0d | 1847 | static void cmeth_free(SSL_COMP *cm) |
0f113f3e MC |
1848 | { |
1849 | OPENSSL_free(cm); | |
1850 | } | |
db7b5e0d DSH |
1851 | |
1852 | void SSL_COMP_free_compression_methods(void) | |
0f113f3e MC |
1853 | { |
1854 | STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods; | |
1855 | ssl_comp_methods = NULL; | |
1856 | sk_SSL_COMP_pop_free(old_meths, cmeth_free); | |
1857 | } | |
db7b5e0d | 1858 | |
6b691a5c | 1859 | int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm) |
0f113f3e MC |
1860 | { |
1861 | SSL_COMP *comp; | |
413c4f45 | 1862 | |
9a555706 | 1863 | if (cm == NULL || COMP_get_type(cm) == NID_undef) |
0f113f3e | 1864 | return 1; |
9f495243 | 1865 | |
50e735f9 MC |
1866 | /*- |
1867 | * According to draft-ietf-tls-compression-04.txt, the | |
1868 | * compression number ranges should be the following: | |
1869 | * | |
1870 | * 0 to 63: methods defined by the IETF | |
1871 | * 64 to 192: external party methods assigned by IANA | |
1872 | * 193 to 255: reserved for private use | |
1873 | */ | |
0f113f3e MC |
1874 | if (id < 193 || id > 255) { |
1875 | SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, | |
1876 | SSL_R_COMPRESSION_ID_NOT_WITHIN_PRIVATE_RANGE); | |
1877 | return 0; | |
1878 | } | |
1879 | ||
bbd86bf5 | 1880 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); |
b4faea50 | 1881 | comp = OPENSSL_malloc(sizeof(*comp)); |
0f113f3e | 1882 | if (comp == NULL) { |
bbd86bf5 | 1883 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e MC |
1884 | SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, ERR_R_MALLOC_FAILURE); |
1885 | return (1); | |
1886 | } | |
1887 | ||
1888 | comp->id = id; | |
1889 | comp->method = cm; | |
1890 | load_builtin_compressions(); | |
1891 | if (ssl_comp_methods && sk_SSL_COMP_find(ssl_comp_methods, comp) >= 0) { | |
1892 | OPENSSL_free(comp); | |
bbd86bf5 | 1893 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e MC |
1894 | SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, |
1895 | SSL_R_DUPLICATE_COMPRESSION_ID); | |
1896 | return (1); | |
bbd86bf5 RS |
1897 | } |
1898 | if ((ssl_comp_methods == NULL) | |
0f113f3e MC |
1899 | || !sk_SSL_COMP_push(ssl_comp_methods, comp)) { |
1900 | OPENSSL_free(comp); | |
bbd86bf5 | 1901 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e MC |
1902 | SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, ERR_R_MALLOC_FAILURE); |
1903 | return (1); | |
0f113f3e | 1904 | } |
bbd86bf5 RS |
1905 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
1906 | return (0); | |
0f113f3e | 1907 | } |
9a555706 | 1908 | #endif |
377dcdba RL |
1909 | |
1910 | const char *SSL_COMP_get_name(const COMP_METHOD *comp) | |
0f113f3e | 1911 | { |
9a555706 RS |
1912 | #ifndef OPENSSL_NO_COMP |
1913 | return comp ? COMP_get_name(comp) : NULL; | |
1914 | #else | |
0f113f3e | 1915 | return NULL; |
09b6c2ef | 1916 | #endif |
9a555706 RS |
1917 | } |
1918 | ||
d47c01a3 DSH |
1919 | /* For a cipher return the index corresponding to the certificate type */ |
1920 | int ssl_cipher_get_cert_index(const SSL_CIPHER *c) | |
0f113f3e | 1921 | { |
ce0c1f2b | 1922 | uint32_t alg_a; |
0f113f3e | 1923 | |
0f113f3e MC |
1924 | alg_a = c->algorithm_auth; |
1925 | ||
ce0c1f2b | 1926 | if (alg_a & SSL_aECDSA) |
0f113f3e | 1927 | return SSL_PKEY_ECC; |
0f113f3e MC |
1928 | else if (alg_a & SSL_aDSS) |
1929 | return SSL_PKEY_DSA_SIGN; | |
1930 | else if (alg_a & SSL_aRSA) | |
1931 | return SSL_PKEY_RSA_ENC; | |
e44380a9 DB |
1932 | else if (alg_a & SSL_aGOST12) |
1933 | return SSL_PKEY_GOST_EC; | |
0f113f3e MC |
1934 | else if (alg_a & SSL_aGOST01) |
1935 | return SSL_PKEY_GOST01; | |
e44380a9 | 1936 | |
0f113f3e MC |
1937 | return -1; |
1938 | } | |
d47c01a3 | 1939 | |
94a209d8 | 1940 | const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr) |
0f113f3e MC |
1941 | { |
1942 | const SSL_CIPHER *c; | |
1943 | c = ssl->method->get_cipher_by_char(ptr); | |
1944 | if (c == NULL || c->valid == 0) | |
1945 | return NULL; | |
1946 | return c; | |
1947 | } | |
94a209d8 DSH |
1948 | |
1949 | const SSL_CIPHER *SSL_CIPHER_find(SSL *ssl, const unsigned char *ptr) | |
0f113f3e MC |
1950 | { |
1951 | return ssl->method->get_cipher_by_char(ptr); | |
1952 | } | |
98c9ce2f DSH |
1953 | |
1954 | int SSL_CIPHER_get_cipher_nid(const SSL_CIPHER *c) | |
1955 | { | |
1956 | int i; | |
1957 | if (c == NULL) | |
1958 | return -1; | |
1959 | i = ssl_cipher_info_lookup(ssl_cipher_table_cipher, c->algorithm_enc); | |
1960 | if (i == -1) | |
1961 | return -1; | |
1962 | return ssl_cipher_table_cipher[i].nid; | |
1963 | } | |
1964 | ||
1965 | int SSL_CIPHER_get_digest_nid(const SSL_CIPHER *c) | |
1966 | { | |
1967 | int i; | |
1968 | if (c == NULL) | |
1969 | return -1; | |
1970 | i = ssl_cipher_info_lookup(ssl_cipher_table_mac, c->algorithm_mac); | |
1971 | if (i == -1) | |
1972 | return -1; | |
1973 | return ssl_cipher_table_mac[i].nid; | |
1974 | } |