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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 |
16203f7b | 150 | #include "internal/threads.h" |
d02b48c6 RE |
151 | #include "ssl_locl.h" |
152 | ||
0f113f3e MC |
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 | |
e75c5a79 DSH |
167 | #define SSL_ENC_AES128CCM_IDX 14 |
168 | #define SSL_ENC_AES256CCM_IDX 15 | |
3d3701ea DSH |
169 | #define SSL_ENC_AES128CCM8_IDX 16 |
170 | #define SSL_ENC_AES256CCM8_IDX 17 | |
e44380a9 | 171 | #define SSL_ENC_GOST8912_IDX 18 |
a76ba82c AP |
172 | #define SSL_ENC_CHACHA_IDX 19 |
173 | #define SSL_ENC_NUM_IDX 20 | |
0f113f3e | 174 | |
98c9ce2f DSH |
175 | /* NB: make sure indices in these tables match values above */ |
176 | ||
177 | typedef struct { | |
90d9e49a | 178 | uint32_t mask; |
98c9ce2f DSH |
179 | int nid; |
180 | } ssl_cipher_table; | |
181 | ||
182 | /* Table of NIDs for each cipher */ | |
183 | static const ssl_cipher_table ssl_cipher_table_cipher[SSL_ENC_NUM_IDX] = { | |
184 | {SSL_DES, NID_des_cbc}, /* SSL_ENC_DES_IDX 0 */ | |
185 | {SSL_3DES, NID_des_ede3_cbc}, /* SSL_ENC_3DES_IDX 1 */ | |
186 | {SSL_RC4, NID_rc4}, /* SSL_ENC_RC4_IDX 2 */ | |
187 | {SSL_RC2, NID_rc2_cbc}, /* SSL_ENC_RC2_IDX 3 */ | |
188 | {SSL_IDEA, NID_idea_cbc}, /* SSL_ENC_IDEA_IDX 4 */ | |
189 | {SSL_eNULL, NID_undef}, /* SSL_ENC_NULL_IDX 5 */ | |
190 | {SSL_AES128, NID_aes_128_cbc}, /* SSL_ENC_AES128_IDX 6 */ | |
191 | {SSL_AES256, NID_aes_256_cbc}, /* SSL_ENC_AES256_IDX 7 */ | |
192 | {SSL_CAMELLIA128, NID_camellia_128_cbc}, /* SSL_ENC_CAMELLIA128_IDX 8 */ | |
193 | {SSL_CAMELLIA256, NID_camellia_256_cbc}, /* SSL_ENC_CAMELLIA256_IDX 9 */ | |
194 | {SSL_eGOST2814789CNT, NID_gost89_cnt}, /* SSL_ENC_GOST89_IDX 10 */ | |
195 | {SSL_SEED, NID_seed_cbc}, /* SSL_ENC_SEED_IDX 11 */ | |
196 | {SSL_AES128GCM, NID_aes_128_gcm}, /* SSL_ENC_AES128GCM_IDX 12 */ | |
e75c5a79 DSH |
197 | {SSL_AES256GCM, NID_aes_256_gcm}, /* SSL_ENC_AES256GCM_IDX 13 */ |
198 | {SSL_AES128CCM, NID_aes_128_ccm}, /* SSL_ENC_AES128CCM_IDX 14 */ | |
3d3701ea DSH |
199 | {SSL_AES256CCM, NID_aes_256_ccm}, /* SSL_ENC_AES256CCM_IDX 15 */ |
200 | {SSL_AES128CCM8, NID_aes_128_ccm}, /* SSL_ENC_AES128CCM8_IDX 16 */ | |
e44380a9 DB |
201 | {SSL_AES256CCM8, NID_aes_256_ccm}, /* SSL_ENC_AES256CCM8_IDX 17 */ |
202 | {SSL_eGOST2814789CNT12, NID_gost89_cnt_12}, /* SSL_ENC_GOST8912_IDX */ | |
a76ba82c | 203 | {SSL_CHACHA20POLY1305, NID_chacha20_poly1305}, |
98c9ce2f DSH |
204 | }; |
205 | ||
0f113f3e MC |
206 | static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX] = { |
207 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, | |
208 | NULL, NULL | |
209 | }; | |
210 | ||
211 | #define SSL_COMP_NULL_IDX 0 | |
212 | #define SSL_COMP_ZLIB_IDX 1 | |
213 | #define SSL_COMP_NUM_IDX 2 | |
214 | ||
215 | static STACK_OF(SSL_COMP) *ssl_comp_methods = NULL; | |
216 | ||
16203f7b AG |
217 | static CRYPTO_ONCE ssl_load_builtin_comp_once = CRYPTO_ONCE_STATIC_INIT; |
218 | ||
0f113f3e MC |
219 | /* |
220 | * Constant SSL_MAX_DIGEST equal to size of digests array should be defined | |
221 | * in the ssl_locl.h | |
b948e2c5 | 222 | */ |
98c9ce2f | 223 | |
0f113f3e | 224 | #define SSL_MD_NUM_IDX SSL_MAX_DIGEST |
98c9ce2f DSH |
225 | |
226 | /* NB: make sure indices in this table matches values above */ | |
227 | static const ssl_cipher_table ssl_cipher_table_mac[SSL_MD_NUM_IDX] = { | |
228 | {SSL_MD5, NID_md5}, /* SSL_MD_MD5_IDX 0 */ | |
229 | {SSL_SHA1, NID_sha1}, /* SSL_MD_SHA1_IDX 1 */ | |
230 | {SSL_GOST94, NID_id_GostR3411_94}, /* SSL_MD_GOST94_IDX 2 */ | |
231 | {SSL_GOST89MAC, NID_id_Gost28147_89_MAC}, /* SSL_MD_GOST89MAC_IDX 3 */ | |
232 | {SSL_SHA256, NID_sha256}, /* SSL_MD_SHA256_IDX 4 */ | |
e44380a9 DB |
233 | {SSL_SHA384, NID_sha384}, /* SSL_MD_SHA384_IDX 5 */ |
234 | {SSL_GOST12_256, NID_id_GostR3411_2012_256}, /* SSL_MD_GOST12_256_IDX 6 */ | |
235 | {SSL_GOST89MAC12, NID_gost_mac_12}, /* SSL_MD_GOST89MAC12_IDX 7 */ | |
28ba2541 | 236 | {SSL_GOST12_512, NID_id_GostR3411_2012_512}, /* SSL_MD_GOST12_512_IDX 8 */ |
7afd2312 DSH |
237 | {0, NID_md5_sha1}, /* SSL_MD_MD5_SHA1_IDX 9 */ |
238 | {0, NID_sha224}, /* SSL_MD_SHA224_IDX 10 */ | |
239 | {0, NID_sha512} /* SSL_MD_SHA512_IDX 11 */ | |
98c9ce2f DSH |
240 | }; |
241 | ||
0f113f3e | 242 | static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX] = { |
7afd2312 | 243 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL |
0f113f3e MC |
244 | }; |
245 | ||
3ec13237 TS |
246 | static const ssl_cipher_table ssl_cipher_table_kx[] = { |
247 | { SSL_kRSA, NID_kx_rsa }, | |
248 | { SSL_kECDHE, NID_kx_ecdhe }, | |
249 | { SSL_kDHE, NID_kx_dhe }, | |
250 | { SSL_kECDHEPSK, NID_kx_ecdhe_psk }, | |
251 | { SSL_kDHEPSK, NID_kx_dhe_psk }, | |
252 | { SSL_kRSAPSK, NID_kx_rsa_psk }, | |
253 | { SSL_kPSK, NID_kx_psk }, | |
254 | { SSL_kSRP, NID_kx_srp }, | |
255 | { SSL_kGOST, NID_kx_gost } | |
256 | }; | |
257 | ||
258 | static const ssl_cipher_table ssl_cipher_table_auth[] = { | |
259 | { SSL_aRSA, NID_auth_rsa }, | |
260 | { SSL_aECDSA, NID_auth_ecdsa }, | |
261 | { SSL_aPSK, NID_auth_psk }, | |
262 | { SSL_aDSS, NID_auth_dss }, | |
263 | { SSL_aGOST01, NID_auth_gost01 }, | |
264 | { SSL_aGOST12, NID_auth_gost12 }, | |
265 | { SSL_aSRP, NID_auth_srp }, | |
266 | { SSL_aNULL, NID_auth_null } | |
267 | }; | |
268 | ||
98c9ce2f DSH |
269 | /* Utility function for table lookup */ |
270 | static int ssl_cipher_info_find(const ssl_cipher_table * table, | |
90d9e49a | 271 | size_t table_cnt, uint32_t mask) |
98c9ce2f DSH |
272 | { |
273 | size_t i; | |
274 | for (i = 0; i < table_cnt; i++, table++) { | |
275 | if (table->mask == mask) | |
276 | return i; | |
277 | } | |
278 | return -1; | |
279 | } | |
280 | ||
281 | #define ssl_cipher_info_lookup(table, x) \ | |
b6eb9827 | 282 | ssl_cipher_info_find(table, OSSL_NELEM(table), x) |
98c9ce2f | 283 | |
0f113f3e MC |
284 | /* |
285 | * PKEY_TYPE for GOST89MAC is known in advance, but, because implementation | |
286 | * is engine-provided, we'll fill it only if corresponding EVP_PKEY_METHOD is | |
287 | * found | |
288 | */ | |
289 | static int ssl_mac_pkey_id[SSL_MD_NUM_IDX] = { | |
e44380a9 | 290 | /* MD5, SHA, GOST94, MAC89 */ |
0f113f3e | 291 | EVP_PKEY_HMAC, EVP_PKEY_HMAC, EVP_PKEY_HMAC, NID_undef, |
e44380a9 DB |
292 | /* SHA256, SHA384, GOST2012_256, MAC89-12 */ |
293 | EVP_PKEY_HMAC, EVP_PKEY_HMAC, EVP_PKEY_HMAC, NID_undef, | |
294 | /* GOST2012_512 */ | |
295 | EVP_PKEY_HMAC, | |
0f113f3e MC |
296 | }; |
297 | ||
298 | static int ssl_mac_secret_size[SSL_MD_NUM_IDX] = { | |
28ba2541 | 299 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 |
0f113f3e MC |
300 | }; |
301 | ||
302 | #define CIPHER_ADD 1 | |
303 | #define CIPHER_KILL 2 | |
304 | #define CIPHER_DEL 3 | |
305 | #define CIPHER_ORD 4 | |
306 | #define CIPHER_SPECIAL 5 | |
a556f342 EK |
307 | /* |
308 | * Bump the ciphers to the top of the list. | |
309 | * This rule isn't currently supported by the public cipherstring API. | |
310 | */ | |
311 | #define CIPHER_BUMP 6 | |
0f113f3e MC |
312 | |
313 | typedef struct cipher_order_st { | |
314 | const SSL_CIPHER *cipher; | |
315 | int active; | |
316 | int dead; | |
317 | struct cipher_order_st *next, *prev; | |
318 | } CIPHER_ORDER; | |
319 | ||
320 | static const SSL_CIPHER cipher_aliases[] = { | |
321 | /* "ALL" doesn't include eNULL (must be specifically enabled) */ | |
3eb2aff4 | 322 | {0, SSL_TXT_ALL, 0, 0, 0, ~SSL_eNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0}, |
0f113f3e | 323 | /* "COMPLEMENTOFALL" */ |
3eb2aff4 | 324 | {0, SSL_TXT_CMPALL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0}, |
0f113f3e MC |
325 | |
326 | /* | |
327 | * "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in | |
328 | * ALL!) | |
329 | */ | |
3eb2aff4 | 330 | {0, SSL_TXT_CMPDEF, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_NOT_DEFAULT, 0, 0, 0}, |
0f113f3e MC |
331 | |
332 | /* | |
333 | * key exchange aliases (some of those using only a single bit here | |
334 | * combine multiple key exchange algs according to the RFCs, e.g. kDHE | |
335 | * combines DHE_DSS and DHE_RSA) | |
336 | */ | |
3eb2aff4 | 337 | {0, SSL_TXT_kRSA, 0, SSL_kRSA, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, |
0f113f3e | 338 | |
3eb2aff4 KR |
339 | {0, SSL_TXT_kEDH, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, |
340 | {0, SSL_TXT_kDHE, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
341 | {0, SSL_TXT_DH, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
0f113f3e | 342 | |
3eb2aff4 KR |
343 | {0, SSL_TXT_kEECDH, 0, SSL_kECDHE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, |
344 | {0, SSL_TXT_kECDHE, 0, SSL_kECDHE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
345 | {0, SSL_TXT_ECDH, 0, SSL_kECDHE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
0f113f3e | 346 | |
3eb2aff4 KR |
347 | {0, SSL_TXT_kPSK, 0, SSL_kPSK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, |
348 | {0, SSL_TXT_kRSAPSK, 0, SSL_kRSAPSK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
349 | {0, SSL_TXT_kECDHEPSK, 0, SSL_kECDHEPSK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
350 | {0, SSL_TXT_kDHEPSK, 0, SSL_kDHEPSK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
351 | {0, SSL_TXT_kSRP, 0, SSL_kSRP, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
352 | {0, SSL_TXT_kGOST, 0, SSL_kGOST, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
0f113f3e MC |
353 | |
354 | /* server authentication aliases */ | |
3eb2aff4 KR |
355 | {0, SSL_TXT_aRSA, 0, 0, SSL_aRSA, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, |
356 | {0, SSL_TXT_aDSS, 0, 0, SSL_aDSS, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
357 | {0, SSL_TXT_DSS, 0, 0, SSL_aDSS, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
358 | {0, SSL_TXT_aNULL, 0, 0, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
359 | {0, SSL_TXT_aECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
360 | {0, SSL_TXT_ECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
361 | {0, SSL_TXT_aPSK, 0, 0, SSL_aPSK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
362 | {0, SSL_TXT_aGOST01, 0, 0, SSL_aGOST01, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
363 | {0, SSL_TXT_aGOST12, 0, 0, SSL_aGOST12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
364 | {0, SSL_TXT_aGOST, 0, 0, SSL_aGOST01 | SSL_aGOST12, 0, 0, 0, 0, 0, 0, | |
e44380a9 | 365 | 0, 0, 0, 0}, |
3eb2aff4 | 366 | {0, SSL_TXT_aSRP, 0, 0, SSL_aSRP, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, |
0f113f3e MC |
367 | |
368 | /* aliases combining key exchange and server authentication */ | |
3eb2aff4 KR |
369 | {0, SSL_TXT_EDH, 0, SSL_kDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, |
370 | {0, SSL_TXT_DHE, 0, SSL_kDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
371 | {0, SSL_TXT_EECDH, 0, SSL_kECDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
372 | {0, SSL_TXT_ECDHE, 0, SSL_kECDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
373 | {0, SSL_TXT_NULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
374 | {0, SSL_TXT_RSA, 0, SSL_kRSA, SSL_aRSA, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
375 | {0, SSL_TXT_ADH, 0, SSL_kDHE, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
376 | {0, SSL_TXT_AECDH, 0, SSL_kECDHE, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
377 | {0, SSL_TXT_PSK, 0, SSL_PSK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
378 | {0, SSL_TXT_SRP, 0, SSL_kSRP, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
0f113f3e MC |
379 | |
380 | /* symmetric encryption aliases */ | |
3eb2aff4 KR |
381 | {0, SSL_TXT_3DES, 0, 0, 0, SSL_3DES, 0, 0, 0, 0, 0, 0, 0, 0, 0}, |
382 | {0, SSL_TXT_RC4, 0, 0, 0, SSL_RC4, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
383 | {0, SSL_TXT_RC2, 0, 0, 0, SSL_RC2, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
384 | {0, SSL_TXT_IDEA, 0, 0, 0, SSL_IDEA, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
385 | {0, SSL_TXT_SEED, 0, 0, 0, SSL_SEED, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
386 | {0, SSL_TXT_eNULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
e44380a9 | 387 | {0, SSL_TXT_GOST, 0, 0, 0, SSL_eGOST2814789CNT | SSL_eGOST2814789CNT12, 0, |
3eb2aff4 | 388 | 0, 0, 0, 0, 0, 0, 0, 0}, |
3d3701ea | 389 | {0, SSL_TXT_AES128, 0, 0, 0, SSL_AES128 | SSL_AES128GCM | SSL_AES128CCM | SSL_AES128CCM8, 0, |
3eb2aff4 | 390 | 0, 0, 0, 0, 0, 0, 0, 0}, |
3d3701ea | 391 | {0, SSL_TXT_AES256, 0, 0, 0, SSL_AES256 | SSL_AES256GCM | SSL_AES256CCM | SSL_AES256CCM8, 0, |
3eb2aff4 KR |
392 | 0, 0, 0, 0, 0, 0, 0, 0}, |
393 | {0, SSL_TXT_AES, 0, 0, 0, SSL_AES, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
0f113f3e | 394 | {0, SSL_TXT_AES_GCM, 0, 0, 0, SSL_AES128GCM | SSL_AES256GCM, 0, 0, 0, 0, |
3eb2aff4 KR |
395 | 0, 0, 0, 0, 0}, |
396 | {0, SSL_TXT_AES_CCM, 0, 0, 0, | |
397 | SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8, 0, 0, 0, | |
398 | 0, 0, 0, 0, 0, 0}, | |
3d3701ea | 399 | {0, SSL_TXT_AES_CCM_8, 0, 0, 0, SSL_AES128CCM8 | SSL_AES256CCM8, 0, 0, 0, 0, |
e75c5a79 | 400 | 0, 0}, |
3eb2aff4 KR |
401 | {0, SSL_TXT_CAMELLIA128, 0, 0, 0, SSL_CAMELLIA128, 0, 0, 0, 0, 0, 0, 0, 0, |
402 | 0}, | |
403 | {0, SSL_TXT_CAMELLIA256, 0, 0, 0, SSL_CAMELLIA256, 0, 0, 0, 0, 0, 0, 0, 0, | |
404 | 0}, | |
405 | {0, SSL_TXT_CAMELLIA, 0, 0, 0, SSL_CAMELLIA, 0, 0, 0, 0, 0, 0, 0, 0, 0}, | |
406 | {0, SSL_TXT_CHACHA20, 0, 0, 0, SSL_CHACHA20, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, | |
0f113f3e MC |
407 | |
408 | /* MAC aliases */ | |
3eb2aff4 KR |
409 | {0, SSL_TXT_MD5, 0, 0, 0, 0, SSL_MD5, 0, 0, 0, 0, 0, 0, 0, 0}, |
410 | {0, SSL_TXT_SHA1, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0, 0, 0, 0}, | |
411 | {0, SSL_TXT_SHA, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0, 0, 0, 0}, | |
412 | {0, SSL_TXT_GOST94, 0, 0, 0, 0, SSL_GOST94, 0, 0, 0, 0, 0, 0, 0, 0}, | |
e44380a9 | 413 | {0, SSL_TXT_GOST89MAC, 0, 0, 0, 0, SSL_GOST89MAC | SSL_GOST89MAC12, 0, 0, |
3eb2aff4 KR |
414 | 0, 0, 0, 0, 0, 0}, |
415 | {0, SSL_TXT_SHA256, 0, 0, 0, 0, SSL_SHA256, 0, 0, 0, 0, 0, 0, 0, 0}, | |
416 | {0, SSL_TXT_SHA384, 0, 0, 0, 0, SSL_SHA384, 0, 0, 0, 0, 0, 0, 0, 0}, | |
417 | {0, SSL_TXT_GOST12, 0, 0, 0, 0, SSL_GOST12_256, 0, 0, 0, 0, 0, 0, 0, 0}, | |
0f113f3e MC |
418 | |
419 | /* protocol version aliases */ | |
3eb2aff4 KR |
420 | {0, SSL_TXT_SSLV3, 0, 0, 0, 0, 0, SSL3_VERSION, 0, 0, 0, 0, 0, 0, 0}, |
421 | {0, SSL_TXT_TLSV1, 0, 0, 0, 0, 0, TLS1_VERSION, 0, 0, 0, 0, 0, 0, 0}, | |
422 | {0, "TLSv1.0", 0, 0, 0, 0, 0, TLS1_VERSION, 0, 0, 0, 0, 0, 0, 0}, | |
423 | {0, SSL_TXT_TLSV1_2, 0, 0, 0, 0, 0, TLS1_2_VERSION, 0, 0, 0, 0, 0, 0, 0}, | |
0f113f3e | 424 | |
0f113f3e | 425 | /* strength classes */ |
3eb2aff4 KR |
426 | {0, SSL_TXT_LOW, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_LOW, 0, 0, 0}, |
427 | {0, SSL_TXT_MEDIUM, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_MEDIUM, 0, 0, 0}, | |
428 | {0, SSL_TXT_HIGH, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_HIGH, 0, 0, 0}, | |
0f113f3e | 429 | /* FIPS 140-2 approved ciphersuite */ |
3eb2aff4 | 430 | {0, SSL_TXT_FIPS, 0, 0, 0, ~SSL_eNULL, 0, 0, 0, 0, 0, SSL_FIPS, 0, 0, 0}, |
0f113f3e MC |
431 | |
432 | /* "EDH-" aliases to "DHE-" labels (for backward compatibility) */ | |
0f113f3e | 433 | {0, SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA, 0, |
3eb2aff4 | 434 | SSL_kDHE, SSL_aDSS, SSL_3DES, SSL_SHA1, 0, 0, 0, 0, |
361a1191 | 435 | SSL_HIGH | SSL_FIPS, 0, 0, 0,}, |
0f113f3e | 436 | {0, SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA, 0, |
3eb2aff4 | 437 | SSL_kDHE, SSL_aRSA, SSL_3DES, SSL_SHA1, 0, 0, 0, 0, |
361a1191 | 438 | SSL_HIGH | SSL_FIPS, 0, 0, 0,}, |
0f113f3e MC |
439 | |
440 | }; | |
441 | ||
442 | /* | |
443 | * Search for public key algorithm with given name and return its pkey_id if | |
444 | * it is available. Otherwise return 0 | |
81025661 | 445 | */ |
70531c14 DSH |
446 | #ifdef OPENSSL_NO_ENGINE |
447 | ||
81025661 | 448 | static int get_optional_pkey_id(const char *pkey_name) |
0f113f3e MC |
449 | { |
450 | const EVP_PKEY_ASN1_METHOD *ameth; | |
451 | int pkey_id = 0; | |
452 | ameth = EVP_PKEY_asn1_find_str(NULL, pkey_name, -1); | |
5f3d93e4 MC |
453 | if (ameth && EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, |
454 | ameth) > 0) { | |
455 | return pkey_id; | |
0f113f3e | 456 | } |
5f3d93e4 | 457 | return 0; |
0f113f3e | 458 | } |
d02b48c6 | 459 | |
70531c14 DSH |
460 | #else |
461 | ||
462 | static int get_optional_pkey_id(const char *pkey_name) | |
0f113f3e MC |
463 | { |
464 | const EVP_PKEY_ASN1_METHOD *ameth; | |
465 | ENGINE *tmpeng = NULL; | |
466 | int pkey_id = 0; | |
467 | ameth = EVP_PKEY_asn1_find_str(&tmpeng, pkey_name, -1); | |
468 | if (ameth) { | |
5f3d93e4 MC |
469 | if (EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, |
470 | ameth) <= 0) | |
471 | pkey_id = 0; | |
0f113f3e | 472 | } |
7c96dbcd | 473 | ENGINE_finish(tmpeng); |
0f113f3e MC |
474 | return pkey_id; |
475 | } | |
70531c14 DSH |
476 | |
477 | #endif | |
478 | ||
633d49c7 | 479 | /* masks of disabled algorithms */ |
90d9e49a DSH |
480 | static uint32_t disabled_enc_mask; |
481 | static uint32_t disabled_mac_mask; | |
482 | static uint32_t disabled_mkey_mask; | |
483 | static uint32_t disabled_auth_mask; | |
633d49c7 | 484 | |
7f3c9036 | 485 | void ssl_load_ciphers(void) |
0f113f3e | 486 | { |
98c9ce2f DSH |
487 | size_t i; |
488 | const ssl_cipher_table *t; | |
633d49c7 | 489 | disabled_enc_mask = 0; |
98c9ce2f | 490 | for (i = 0, t = ssl_cipher_table_cipher; i < SSL_ENC_NUM_IDX; i++, t++) { |
633d49c7 | 491 | if (t->nid == NID_undef) { |
98c9ce2f | 492 | ssl_cipher_methods[i] = NULL; |
633d49c7 DSH |
493 | } else { |
494 | const EVP_CIPHER *cipher = EVP_get_cipherbynid(t->nid); | |
495 | ssl_cipher_methods[i] = cipher; | |
496 | if (cipher == NULL) | |
497 | disabled_enc_mask |= t->mask; | |
498 | } | |
0f113f3e | 499 | } |
633d49c7 DSH |
500 | #ifdef SSL_FORBID_ENULL |
501 | disabled_enc_mask |= SSL_eNULL; | |
502 | #endif | |
503 | disabled_mac_mask = 0; | |
98c9ce2f | 504 | for (i = 0, t = ssl_cipher_table_mac; i < SSL_MD_NUM_IDX; i++, t++) { |
633d49c7 DSH |
505 | const EVP_MD *md = EVP_get_digestbynid(t->nid); |
506 | ssl_digest_methods[i] = md; | |
507 | if (md == NULL) { | |
508 | disabled_mac_mask |= t->mask; | |
509 | } else { | |
510 | ssl_mac_secret_size[i] = EVP_MD_size(md); | |
98c9ce2f DSH |
511 | OPENSSL_assert(ssl_mac_secret_size[i] >= 0); |
512 | } | |
513 | } | |
514 | /* Make sure we can access MD5 and SHA1 */ | |
515 | OPENSSL_assert(ssl_digest_methods[SSL_MD_MD5_IDX] != NULL); | |
516 | OPENSSL_assert(ssl_digest_methods[SSL_MD_SHA1_IDX] != NULL); | |
633d49c7 DSH |
517 | |
518 | disabled_mkey_mask = 0; | |
519 | disabled_auth_mask = 0; | |
520 | ||
521 | #ifdef OPENSSL_NO_RSA | |
332a251f | 522 | disabled_mkey_mask |= SSL_kRSA | SSL_kRSAPSK; |
633d49c7 DSH |
523 | disabled_auth_mask |= SSL_aRSA; |
524 | #endif | |
525 | #ifdef OPENSSL_NO_DSA | |
526 | disabled_auth_mask |= SSL_aDSS; | |
527 | #endif | |
528 | #ifdef OPENSSL_NO_DH | |
bc71f910 | 529 | disabled_mkey_mask |= SSL_kDHE | SSL_kDHEPSK; |
633d49c7 DSH |
530 | #endif |
531 | #ifdef OPENSSL_NO_EC | |
ce0c1f2b DSH |
532 | disabled_mkey_mask |= SSL_kECDHEPSK; |
533 | disabled_auth_mask |= SSL_aECDSA; | |
633d49c7 DSH |
534 | #endif |
535 | #ifdef OPENSSL_NO_PSK | |
332a251f | 536 | disabled_mkey_mask |= SSL_PSK; |
633d49c7 DSH |
537 | disabled_auth_mask |= SSL_aPSK; |
538 | #endif | |
539 | #ifdef OPENSSL_NO_SRP | |
540 | disabled_mkey_mask |= SSL_kSRP; | |
541 | #endif | |
542 | ||
543 | /* | |
544 | * Check for presence of GOST 34.10 algorithms, and if they are not | |
545 | * present, disable appropriate auth and key exchange | |
546 | */ | |
e1fa652d DSH |
547 | ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX] = get_optional_pkey_id("gost-mac"); |
548 | if (ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]) { | |
549 | ssl_mac_secret_size[SSL_MD_GOST89MAC_IDX] = 32; | |
633d49c7 DSH |
550 | } else { |
551 | disabled_mac_mask |= SSL_GOST89MAC; | |
e1fa652d | 552 | } |
633d49c7 | 553 | |
e44380a9 DB |
554 | ssl_mac_pkey_id[SSL_MD_GOST89MAC12_IDX] = get_optional_pkey_id("gost-mac-12"); |
555 | if (ssl_mac_pkey_id[SSL_MD_GOST89MAC12_IDX]) { | |
556 | ssl_mac_secret_size[SSL_MD_GOST89MAC12_IDX] = 32; | |
557 | } else { | |
558 | disabled_mac_mask |= SSL_GOST89MAC12; | |
559 | } | |
560 | ||
633d49c7 | 561 | if (!get_optional_pkey_id("gost2001")) |
e44380a9 DB |
562 | disabled_auth_mask |= SSL_aGOST01 | SSL_aGOST12; |
563 | if (!get_optional_pkey_id("gost2012_256")) | |
564 | disabled_auth_mask |= SSL_aGOST12; | |
565 | if (!get_optional_pkey_id("gost2012_512")) | |
566 | disabled_auth_mask |= SSL_aGOST12; | |
633d49c7 DSH |
567 | /* |
568 | * Disable GOST key exchange if no GOST signature algs are available * | |
569 | */ | |
e44380a9 | 570 | if ((disabled_auth_mask & (SSL_aGOST01 | SSL_aGOST12)) == (SSL_aGOST01 | SSL_aGOST12)) |
633d49c7 | 571 | disabled_mkey_mask |= SSL_kGOST; |
0f113f3e MC |
572 | } |
573 | ||
09b6c2ef DSH |
574 | #ifndef OPENSSL_NO_COMP |
575 | ||
0f113f3e MC |
576 | static int sk_comp_cmp(const SSL_COMP *const *a, const SSL_COMP *const *b) |
577 | { | |
578 | return ((*a)->id - (*b)->id); | |
579 | } | |
7ba666fa | 580 | |
16203f7b | 581 | static void do_load_builtin_compressions(void) |
0f113f3e | 582 | { |
16203f7b AG |
583 | SSL_COMP *comp = NULL; |
584 | COMP_METHOD *method = COMP_zlib(); | |
585 | ||
586 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); | |
587 | ssl_comp_methods = sk_SSL_COMP_new(sk_comp_cmp); | |
588 | ||
589 | if (COMP_get_type(method) != NID_undef && ssl_comp_methods != NULL) { | |
590 | comp = OPENSSL_malloc(sizeof(*comp)); | |
591 | if (comp != NULL) { | |
592 | comp->method = method; | |
593 | comp->id = SSL_COMP_ZLIB_IDX; | |
594 | comp->name = COMP_get_name(method); | |
595 | sk_SSL_COMP_push(ssl_comp_methods, comp); | |
596 | sk_SSL_COMP_sort(ssl_comp_methods); | |
0f113f3e MC |
597 | } |
598 | } | |
16203f7b AG |
599 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
600 | } | |
0f113f3e | 601 | |
16203f7b AG |
602 | static void load_builtin_compressions(void) |
603 | { | |
604 | CRYPTO_THREAD_run_once(&ssl_load_builtin_comp_once, | |
605 | do_load_builtin_compressions); | |
0f113f3e | 606 | } |
09b6c2ef | 607 | #endif |
7ba666fa | 608 | |
0821bcd4 | 609 | int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc, |
0f113f3e MC |
610 | const EVP_MD **md, int *mac_pkey_type, |
611 | int *mac_secret_size, SSL_COMP **comp, int use_etm) | |
612 | { | |
613 | int i; | |
614 | const SSL_CIPHER *c; | |
615 | ||
616 | c = s->cipher; | |
617 | if (c == NULL) | |
618 | return (0); | |
619 | if (comp != NULL) { | |
620 | SSL_COMP ctmp; | |
09b6c2ef | 621 | #ifndef OPENSSL_NO_COMP |
0f113f3e | 622 | load_builtin_compressions(); |
09b6c2ef | 623 | #endif |
413c4f45 | 624 | |
0f113f3e MC |
625 | *comp = NULL; |
626 | ctmp.id = s->compress_meth; | |
627 | if (ssl_comp_methods != NULL) { | |
628 | i = sk_SSL_COMP_find(ssl_comp_methods, &ctmp); | |
629 | if (i >= 0) | |
630 | *comp = sk_SSL_COMP_value(ssl_comp_methods, i); | |
631 | else | |
632 | *comp = NULL; | |
633 | } | |
69f68237 | 634 | /* If were only interested in comp then return success */ |
61986d32 | 635 | if ((enc == NULL) && (md == NULL)) |
69f68237 | 636 | return 1; |
0f113f3e MC |
637 | } |
638 | ||
639 | if ((enc == NULL) || (md == NULL)) | |
69f68237 | 640 | return 0; |
0f113f3e | 641 | |
98c9ce2f | 642 | i = ssl_cipher_info_lookup(ssl_cipher_table_cipher, c->algorithm_enc); |
0f113f3e | 643 | |
98c9ce2f | 644 | if (i == -1) |
0f113f3e MC |
645 | *enc = NULL; |
646 | else { | |
647 | if (i == SSL_ENC_NULL_IDX) | |
648 | *enc = EVP_enc_null(); | |
649 | else | |
650 | *enc = ssl_cipher_methods[i]; | |
651 | } | |
652 | ||
98c9ce2f DSH |
653 | i = ssl_cipher_info_lookup(ssl_cipher_table_mac, c->algorithm_mac); |
654 | if (i == -1) { | |
0f113f3e MC |
655 | *md = NULL; |
656 | if (mac_pkey_type != NULL) | |
657 | *mac_pkey_type = NID_undef; | |
658 | if (mac_secret_size != NULL) | |
659 | *mac_secret_size = 0; | |
660 | if (c->algorithm_mac == SSL_AEAD) | |
661 | mac_pkey_type = NULL; | |
662 | } else { | |
663 | *md = ssl_digest_methods[i]; | |
664 | if (mac_pkey_type != NULL) | |
665 | *mac_pkey_type = ssl_mac_pkey_id[i]; | |
666 | if (mac_secret_size != NULL) | |
667 | *mac_secret_size = ssl_mac_secret_size[i]; | |
668 | } | |
669 | ||
670 | if ((*enc != NULL) && | |
671 | (*md != NULL || (EVP_CIPHER_flags(*enc) & EVP_CIPH_FLAG_AEAD_CIPHER)) | |
672 | && (!mac_pkey_type || *mac_pkey_type != NID_undef)) { | |
673 | const EVP_CIPHER *evp; | |
674 | ||
675 | if (use_etm) | |
676 | return 1; | |
677 | ||
678 | if (s->ssl_version >> 8 != TLS1_VERSION_MAJOR || | |
679 | s->ssl_version < TLS1_VERSION) | |
680 | return 1; | |
681 | ||
682 | if (FIPS_mode()) | |
683 | return 1; | |
684 | ||
685 | if (c->algorithm_enc == SSL_RC4 && | |
686 | c->algorithm_mac == SSL_MD5 && | |
687 | (evp = EVP_get_cipherbyname("RC4-HMAC-MD5"))) | |
688 | *enc = evp, *md = NULL; | |
689 | else if (c->algorithm_enc == SSL_AES128 && | |
690 | c->algorithm_mac == SSL_SHA1 && | |
691 | (evp = EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA1"))) | |
692 | *enc = evp, *md = NULL; | |
693 | else if (c->algorithm_enc == SSL_AES256 && | |
694 | c->algorithm_mac == SSL_SHA1 && | |
695 | (evp = EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA1"))) | |
696 | *enc = evp, *md = NULL; | |
697 | else if (c->algorithm_enc == SSL_AES128 && | |
698 | c->algorithm_mac == SSL_SHA256 && | |
699 | (evp = EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA256"))) | |
700 | *enc = evp, *md = NULL; | |
701 | else if (c->algorithm_enc == SSL_AES256 && | |
702 | c->algorithm_mac == SSL_SHA256 && | |
703 | (evp = EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA256"))) | |
704 | *enc = evp, *md = NULL; | |
705 | return (1); | |
706 | } else | |
707 | return (0); | |
708 | } | |
709 | ||
152fbc28 | 710 | const EVP_MD *ssl_md(int idx) |
81025661 | 711 | { |
28ba2541 DSH |
712 | idx &= SSL_HANDSHAKE_MAC_MASK; |
713 | if (idx < 0 || idx >= SSL_MD_NUM_IDX) | |
714 | return NULL; | |
715 | return ssl_digest_methods[idx]; | |
716 | } | |
717 | ||
718 | const EVP_MD *ssl_handshake_md(SSL *s) | |
719 | { | |
152fbc28 | 720 | return ssl_md(ssl_get_algorithm2(s)); |
28ba2541 DSH |
721 | } |
722 | ||
723 | const EVP_MD *ssl_prf_md(SSL *s) | |
724 | { | |
152fbc28 | 725 | return ssl_md(ssl_get_algorithm2(s) >> TLS1_PRF_DGST_SHIFT); |
81025661 DSH |
726 | } |
727 | ||
58964a49 | 728 | #define ITEM_SEP(a) \ |
0f113f3e | 729 | (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ',')) |
58964a49 | 730 | |
6b691a5c | 731 | static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr, |
0f113f3e MC |
732 | CIPHER_ORDER **tail) |
733 | { | |
734 | if (curr == *tail) | |
735 | return; | |
736 | if (curr == *head) | |
737 | *head = curr->next; | |
738 | if (curr->prev != NULL) | |
739 | curr->prev->next = curr->next; | |
740 | if (curr->next != NULL) | |
741 | curr->next->prev = curr->prev; | |
742 | (*tail)->next = curr; | |
743 | curr->prev = *tail; | |
744 | curr->next = NULL; | |
745 | *tail = curr; | |
746 | } | |
58964a49 | 747 | |
fd5bc65c | 748 | static void ll_append_head(CIPHER_ORDER **head, CIPHER_ORDER *curr, |
0f113f3e MC |
749 | CIPHER_ORDER **tail) |
750 | { | |
751 | if (curr == *head) | |
752 | return; | |
753 | if (curr == *tail) | |
754 | *tail = curr->prev; | |
755 | if (curr->next != NULL) | |
756 | curr->next->prev = curr->prev; | |
757 | if (curr->prev != NULL) | |
758 | curr->prev->next = curr->next; | |
759 | (*head)->prev = curr; | |
760 | curr->next = *head; | |
761 | curr->prev = NULL; | |
762 | *head = curr; | |
763 | } | |
764 | ||
018e57c7 | 765 | static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method, |
0f113f3e | 766 | int num_of_ciphers, |
90d9e49a DSH |
767 | uint32_t disabled_mkey, |
768 | uint32_t disabled_auth, | |
769 | uint32_t disabled_enc, | |
770 | uint32_t disabled_mac, | |
0f113f3e MC |
771 | CIPHER_ORDER *co_list, |
772 | CIPHER_ORDER **head_p, | |
773 | CIPHER_ORDER **tail_p) | |
774 | { | |
775 | int i, co_list_num; | |
776 | const SSL_CIPHER *c; | |
777 | ||
778 | /* | |
779 | * We have num_of_ciphers descriptions compiled in, depending on the | |
780 | * method selected (SSLv3, TLSv1 etc). | |
781 | * These will later be sorted in a linked list with at most num | |
782 | * entries. | |
783 | */ | |
784 | ||
785 | /* Get the initial list of ciphers */ | |
786 | co_list_num = 0; /* actual count of ciphers */ | |
787 | for (i = 0; i < num_of_ciphers; i++) { | |
788 | c = ssl_method->get_cipher(i); | |
789 | /* drop those that use any of that is not available */ | |
ca3895f0 KR |
790 | if (c == NULL || !c->valid) |
791 | continue; | |
792 | if (FIPS_mode() && (c->algo_strength & SSL_FIPS)) | |
793 | continue; | |
794 | if ((c->algorithm_mkey & disabled_mkey) || | |
795 | (c->algorithm_auth & disabled_auth) || | |
796 | (c->algorithm_enc & disabled_enc) || | |
797 | (c->algorithm_mac & disabled_mac)) | |
798 | continue; | |
799 | if (((ssl_method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS) == 0) && | |
800 | c->min_tls == 0) | |
801 | continue; | |
802 | if (((ssl_method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS) != 0) && | |
803 | c->min_dtls == 0) | |
804 | continue; | |
805 | ||
806 | co_list[co_list_num].cipher = c; | |
807 | co_list[co_list_num].next = NULL; | |
808 | co_list[co_list_num].prev = NULL; | |
809 | co_list[co_list_num].active = 0; | |
810 | co_list_num++; | |
811 | /* | |
812 | * if (!sk_push(ca_list,(char *)c)) goto err; | |
813 | */ | |
0f113f3e MC |
814 | } |
815 | ||
816 | /* | |
817 | * Prepare linked list from list entries | |
818 | */ | |
819 | if (co_list_num > 0) { | |
820 | co_list[0].prev = NULL; | |
821 | ||
822 | if (co_list_num > 1) { | |
823 | co_list[0].next = &co_list[1]; | |
824 | ||
825 | for (i = 1; i < co_list_num - 1; i++) { | |
826 | co_list[i].prev = &co_list[i - 1]; | |
827 | co_list[i].next = &co_list[i + 1]; | |
828 | } | |
829 | ||
830 | co_list[co_list_num - 1].prev = &co_list[co_list_num - 2]; | |
831 | } | |
832 | ||
833 | co_list[co_list_num - 1].next = NULL; | |
834 | ||
835 | *head_p = &co_list[0]; | |
836 | *tail_p = &co_list[co_list_num - 1]; | |
837 | } | |
838 | } | |
d02b48c6 | 839 | |
babb3798 | 840 | static void ssl_cipher_collect_aliases(const SSL_CIPHER **ca_list, |
0f113f3e | 841 | int num_of_group_aliases, |
90d9e49a DSH |
842 | uint32_t disabled_mkey, |
843 | uint32_t disabled_auth, | |
844 | uint32_t disabled_enc, | |
845 | uint32_t disabled_mac, | |
0f113f3e MC |
846 | CIPHER_ORDER *head) |
847 | { | |
848 | CIPHER_ORDER *ciph_curr; | |
849 | const SSL_CIPHER **ca_curr; | |
850 | int i; | |
90d9e49a DSH |
851 | uint32_t mask_mkey = ~disabled_mkey; |
852 | uint32_t mask_auth = ~disabled_auth; | |
853 | uint32_t mask_enc = ~disabled_enc; | |
854 | uint32_t mask_mac = ~disabled_mac; | |
0f113f3e MC |
855 | |
856 | /* | |
857 | * First, add the real ciphers as already collected | |
858 | */ | |
859 | ciph_curr = head; | |
860 | ca_curr = ca_list; | |
861 | while (ciph_curr != NULL) { | |
862 | *ca_curr = ciph_curr->cipher; | |
863 | ca_curr++; | |
864 | ciph_curr = ciph_curr->next; | |
865 | } | |
866 | ||
867 | /* | |
868 | * Now we add the available ones from the cipher_aliases[] table. | |
869 | * They represent either one or more algorithms, some of which | |
870 | * in any affected category must be supported (set in enabled_mask), | |
871 | * or represent a cipher strength value (will be added in any case because algorithms=0). | |
872 | */ | |
873 | for (i = 0; i < num_of_group_aliases; i++) { | |
90d9e49a DSH |
874 | uint32_t algorithm_mkey = cipher_aliases[i].algorithm_mkey; |
875 | uint32_t algorithm_auth = cipher_aliases[i].algorithm_auth; | |
876 | uint32_t algorithm_enc = cipher_aliases[i].algorithm_enc; | |
877 | uint32_t algorithm_mac = cipher_aliases[i].algorithm_mac; | |
0f113f3e MC |
878 | |
879 | if (algorithm_mkey) | |
880 | if ((algorithm_mkey & mask_mkey) == 0) | |
881 | continue; | |
882 | ||
883 | if (algorithm_auth) | |
884 | if ((algorithm_auth & mask_auth) == 0) | |
885 | continue; | |
886 | ||
887 | if (algorithm_enc) | |
888 | if ((algorithm_enc & mask_enc) == 0) | |
889 | continue; | |
890 | ||
891 | if (algorithm_mac) | |
892 | if ((algorithm_mac & mask_mac) == 0) | |
893 | continue; | |
894 | ||
0f113f3e MC |
895 | *ca_curr = (SSL_CIPHER *)(cipher_aliases + i); |
896 | ca_curr++; | |
897 | } | |
898 | ||
899 | *ca_curr = NULL; /* end of list */ | |
900 | } | |
d02b48c6 | 901 | |
90d9e49a DSH |
902 | static void ssl_cipher_apply_rule(uint32_t cipher_id, uint32_t alg_mkey, |
903 | uint32_t alg_auth, uint32_t alg_enc, | |
3eb2aff4 | 904 | uint32_t alg_mac, int min_tls, |
90d9e49a DSH |
905 | uint32_t algo_strength, int rule, |
906 | int32_t strength_bits, CIPHER_ORDER **head_p, | |
0f113f3e MC |
907 | CIPHER_ORDER **tail_p) |
908 | { | |
909 | CIPHER_ORDER *head, *tail, *curr, *next, *last; | |
910 | const SSL_CIPHER *cp; | |
911 | int reverse = 0; | |
018e57c7 DSH |
912 | |
913 | #ifdef CIPHER_DEBUG | |
0f113f3e | 914 | fprintf(stderr, |
d1776fde | 915 | "Applying rule %d with %08x/%08x/%08x/%08x/%08x %08x (%d)\n", |
3eb2aff4 | 916 | rule, alg_mkey, alg_auth, alg_enc, alg_mac, min_tls, |
0f113f3e | 917 | algo_strength, strength_bits); |
018e57c7 | 918 | #endif |
d02b48c6 | 919 | |
a556f342 | 920 | if (rule == CIPHER_DEL || rule == CIPHER_BUMP) |
0f113f3e MC |
921 | reverse = 1; /* needed to maintain sorting between |
922 | * currently deleted ciphers */ | |
923 | ||
924 | head = *head_p; | |
925 | tail = *tail_p; | |
926 | ||
927 | if (reverse) { | |
928 | next = tail; | |
929 | last = head; | |
930 | } else { | |
931 | next = head; | |
932 | last = tail; | |
933 | } | |
934 | ||
935 | curr = NULL; | |
936 | for (;;) { | |
937 | if (curr == last) | |
938 | break; | |
939 | ||
940 | curr = next; | |
941 | ||
942 | if (curr == NULL) | |
943 | break; | |
944 | ||
945 | next = reverse ? curr->prev : curr->next; | |
946 | ||
947 | cp = curr->cipher; | |
948 | ||
949 | /* | |
950 | * Selection criteria is either the value of strength_bits | |
951 | * or the algorithms used. | |
952 | */ | |
953 | if (strength_bits >= 0) { | |
954 | if (strength_bits != cp->strength_bits) | |
955 | continue; | |
956 | } else { | |
018e57c7 | 957 | #ifdef CIPHER_DEBUG |
0f113f3e | 958 | fprintf(stderr, |
d1776fde | 959 | "\nName: %s:\nAlgo = %08x/%08x/%08x/%08x/%08x Algo_strength = %08x\n", |
0f113f3e MC |
960 | cp->name, cp->algorithm_mkey, cp->algorithm_auth, |
961 | cp->algorithm_enc, cp->algorithm_mac, cp->algorithm_ssl, | |
962 | cp->algo_strength); | |
323fa645 | 963 | #endif |
0f113f3e MC |
964 | if (alg_mkey && !(alg_mkey & cp->algorithm_mkey)) |
965 | continue; | |
966 | if (alg_auth && !(alg_auth & cp->algorithm_auth)) | |
967 | continue; | |
968 | if (alg_enc && !(alg_enc & cp->algorithm_enc)) | |
969 | continue; | |
970 | if (alg_mac && !(alg_mac & cp->algorithm_mac)) | |
971 | continue; | |
3eb2aff4 | 972 | if (min_tls && (min_tls != cp->min_tls)) |
0f113f3e | 973 | continue; |
361a1191 | 974 | if (algo_strength && !(algo_strength & cp->algo_strength)) |
0f113f3e | 975 | continue; |
c84f7f4a MC |
976 | if ((algo_strength & SSL_DEFAULT_MASK) |
977 | && !(algo_strength & SSL_DEFAULT_MASK & cp->algo_strength)) | |
978 | continue; | |
0f113f3e | 979 | } |
018e57c7 DSH |
980 | |
981 | #ifdef CIPHER_DEBUG | |
0f113f3e | 982 | fprintf(stderr, "Action = %d\n", rule); |
018e57c7 DSH |
983 | #endif |
984 | ||
0f113f3e MC |
985 | /* add the cipher if it has not been added yet. */ |
986 | if (rule == CIPHER_ADD) { | |
987 | /* reverse == 0 */ | |
988 | if (!curr->active) { | |
989 | ll_append_tail(&head, curr, &tail); | |
990 | curr->active = 1; | |
991 | } | |
992 | } | |
993 | /* Move the added cipher to this location */ | |
994 | else if (rule == CIPHER_ORD) { | |
995 | /* reverse == 0 */ | |
996 | if (curr->active) { | |
997 | ll_append_tail(&head, curr, &tail); | |
998 | } | |
999 | } else if (rule == CIPHER_DEL) { | |
1000 | /* reverse == 1 */ | |
1001 | if (curr->active) { | |
1002 | /* | |
1003 | * most recently deleted ciphersuites get best positions for | |
1004 | * any future CIPHER_ADD (note that the CIPHER_DEL loop works | |
1005 | * in reverse to maintain the order) | |
1006 | */ | |
1007 | ll_append_head(&head, curr, &tail); | |
1008 | curr->active = 0; | |
1009 | } | |
a556f342 EK |
1010 | } else if (rule == CIPHER_BUMP) { |
1011 | if (curr->active) | |
1012 | ll_append_head(&head, curr, &tail); | |
0f113f3e MC |
1013 | } else if (rule == CIPHER_KILL) { |
1014 | /* reverse == 0 */ | |
1015 | if (head == curr) | |
1016 | head = curr->next; | |
1017 | else | |
1018 | curr->prev->next = curr->next; | |
1019 | if (tail == curr) | |
1020 | tail = curr->prev; | |
1021 | curr->active = 0; | |
1022 | if (curr->next != NULL) | |
1023 | curr->next->prev = curr->prev; | |
1024 | if (curr->prev != NULL) | |
1025 | curr->prev->next = curr->next; | |
1026 | curr->next = NULL; | |
1027 | curr->prev = NULL; | |
1028 | } | |
1029 | } | |
1030 | ||
1031 | *head_p = head; | |
1032 | *tail_p = tail; | |
1033 | } | |
018e57c7 | 1034 | |
a717831d | 1035 | static int ssl_cipher_strength_sort(CIPHER_ORDER **head_p, |
0f113f3e MC |
1036 | CIPHER_ORDER **tail_p) |
1037 | { | |
90d9e49a DSH |
1038 | int32_t max_strength_bits; |
1039 | int i, *number_uses; | |
0f113f3e MC |
1040 | CIPHER_ORDER *curr; |
1041 | ||
1042 | /* | |
1043 | * This routine sorts the ciphers with descending strength. The sorting | |
1044 | * must keep the pre-sorted sequence, so we apply the normal sorting | |
1045 | * routine as '+' movement to the end of the list. | |
1046 | */ | |
1047 | max_strength_bits = 0; | |
1048 | curr = *head_p; | |
1049 | while (curr != NULL) { | |
1050 | if (curr->active && (curr->cipher->strength_bits > max_strength_bits)) | |
1051 | max_strength_bits = curr->cipher->strength_bits; | |
1052 | curr = curr->next; | |
1053 | } | |
1054 | ||
b51bce94 | 1055 | number_uses = OPENSSL_zalloc(sizeof(int) * (max_strength_bits + 1)); |
a71edf3b | 1056 | if (number_uses == NULL) { |
0f113f3e MC |
1057 | SSLerr(SSL_F_SSL_CIPHER_STRENGTH_SORT, ERR_R_MALLOC_FAILURE); |
1058 | return (0); | |
1059 | } | |
0f113f3e MC |
1060 | |
1061 | /* | |
1062 | * Now find the strength_bits values actually used | |
1063 | */ | |
1064 | curr = *head_p; | |
1065 | while (curr != NULL) { | |
1066 | if (curr->active) | |
1067 | number_uses[curr->cipher->strength_bits]++; | |
1068 | curr = curr->next; | |
1069 | } | |
1070 | /* | |
1071 | * Go through the list of used strength_bits values in descending | |
1072 | * order. | |
1073 | */ | |
1074 | for (i = max_strength_bits; i >= 0; i--) | |
1075 | if (number_uses[i] > 0) | |
1076 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ORD, i, head_p, | |
1077 | tail_p); | |
1078 | ||
1079 | OPENSSL_free(number_uses); | |
1080 | return (1); | |
1081 | } | |
018e57c7 DSH |
1082 | |
1083 | static int ssl_cipher_process_rulestr(const char *rule_str, | |
0f113f3e MC |
1084 | CIPHER_ORDER **head_p, |
1085 | CIPHER_ORDER **tail_p, | |
1086 | const SSL_CIPHER **ca_list, CERT *c) | |
1087 | { | |
3eb2aff4 KR |
1088 | uint32_t alg_mkey, alg_auth, alg_enc, alg_mac, algo_strength; |
1089 | int min_tls; | |
0f113f3e MC |
1090 | const char *l, *buf; |
1091 | int j, multi, found, rule, retval, ok, buflen; | |
90d9e49a | 1092 | uint32_t cipher_id = 0; |
0f113f3e MC |
1093 | char ch; |
1094 | ||
1095 | retval = 1; | |
1096 | l = rule_str; | |
1097 | for (;;) { | |
1098 | ch = *l; | |
1099 | ||
1100 | if (ch == '\0') | |
1101 | break; /* done */ | |
1102 | if (ch == '-') { | |
1103 | rule = CIPHER_DEL; | |
1104 | l++; | |
1105 | } else if (ch == '+') { | |
1106 | rule = CIPHER_ORD; | |
1107 | l++; | |
1108 | } else if (ch == '!') { | |
1109 | rule = CIPHER_KILL; | |
1110 | l++; | |
1111 | } else if (ch == '@') { | |
1112 | rule = CIPHER_SPECIAL; | |
1113 | l++; | |
1114 | } else { | |
1115 | rule = CIPHER_ADD; | |
1116 | } | |
1117 | ||
1118 | if (ITEM_SEP(ch)) { | |
1119 | l++; | |
1120 | continue; | |
1121 | } | |
1122 | ||
1123 | alg_mkey = 0; | |
1124 | alg_auth = 0; | |
1125 | alg_enc = 0; | |
1126 | alg_mac = 0; | |
3eb2aff4 | 1127 | min_tls = 0; |
0f113f3e MC |
1128 | algo_strength = 0; |
1129 | ||
1130 | for (;;) { | |
1131 | ch = *l; | |
1132 | buf = l; | |
1133 | buflen = 0; | |
ca570cfd | 1134 | #ifndef CHARSET_EBCDIC |
0f113f3e MC |
1135 | while (((ch >= 'A') && (ch <= 'Z')) || |
1136 | ((ch >= '0') && (ch <= '9')) || | |
1137 | ((ch >= 'a') && (ch <= 'z')) || | |
1138 | (ch == '-') || (ch == '.') || (ch == '=')) | |
ca570cfd | 1139 | #else |
0f113f3e | 1140 | while (isalnum(ch) || (ch == '-') || (ch == '.') || (ch == '=')) |
ca570cfd | 1141 | #endif |
0f113f3e MC |
1142 | { |
1143 | ch = *(++l); | |
1144 | buflen++; | |
1145 | } | |
1146 | ||
1147 | if (buflen == 0) { | |
1148 | /* | |
1149 | * We hit something we cannot deal with, | |
1150 | * it is no command or separator nor | |
1151 | * alphanumeric, so we call this an error. | |
1152 | */ | |
1153 | SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, | |
1154 | SSL_R_INVALID_COMMAND); | |
1155 | retval = found = 0; | |
1156 | l++; | |
1157 | break; | |
1158 | } | |
1159 | ||
1160 | if (rule == CIPHER_SPECIAL) { | |
1161 | found = 0; /* unused -- avoid compiler warning */ | |
1162 | break; /* special treatment */ | |
1163 | } | |
1164 | ||
1165 | /* check for multi-part specification */ | |
1166 | if (ch == '+') { | |
1167 | multi = 1; | |
1168 | l++; | |
1169 | } else | |
1170 | multi = 0; | |
1171 | ||
1172 | /* | |
1173 | * Now search for the cipher alias in the ca_list. Be careful | |
1174 | * with the strncmp, because the "buflen" limitation | |
1175 | * will make the rule "ADH:SOME" and the cipher | |
1176 | * "ADH-MY-CIPHER" look like a match for buflen=3. | |
1177 | * So additionally check whether the cipher name found | |
1178 | * has the correct length. We can save a strlen() call: | |
1179 | * just checking for the '\0' at the right place is | |
1180 | * sufficient, we have to strncmp() anyway. (We cannot | |
1181 | * use strcmp(), because buf is not '\0' terminated.) | |
1182 | */ | |
1183 | j = found = 0; | |
1184 | cipher_id = 0; | |
1185 | while (ca_list[j]) { | |
86885c28 RS |
1186 | if (strncmp(buf, ca_list[j]->name, buflen) == 0 |
1187 | && (ca_list[j]->name[buflen] == '\0')) { | |
0f113f3e MC |
1188 | found = 1; |
1189 | break; | |
1190 | } else | |
1191 | j++; | |
1192 | } | |
1193 | ||
1194 | if (!found) | |
1195 | break; /* ignore this entry */ | |
1196 | ||
1197 | if (ca_list[j]->algorithm_mkey) { | |
1198 | if (alg_mkey) { | |
1199 | alg_mkey &= ca_list[j]->algorithm_mkey; | |
1200 | if (!alg_mkey) { | |
1201 | found = 0; | |
1202 | break; | |
1203 | } | |
1204 | } else | |
1205 | alg_mkey = ca_list[j]->algorithm_mkey; | |
1206 | } | |
1207 | ||
1208 | if (ca_list[j]->algorithm_auth) { | |
1209 | if (alg_auth) { | |
1210 | alg_auth &= ca_list[j]->algorithm_auth; | |
1211 | if (!alg_auth) { | |
1212 | found = 0; | |
1213 | break; | |
1214 | } | |
1215 | } else | |
1216 | alg_auth = ca_list[j]->algorithm_auth; | |
1217 | } | |
1218 | ||
1219 | if (ca_list[j]->algorithm_enc) { | |
1220 | if (alg_enc) { | |
1221 | alg_enc &= ca_list[j]->algorithm_enc; | |
1222 | if (!alg_enc) { | |
1223 | found = 0; | |
1224 | break; | |
1225 | } | |
1226 | } else | |
1227 | alg_enc = ca_list[j]->algorithm_enc; | |
1228 | } | |
1229 | ||
1230 | if (ca_list[j]->algorithm_mac) { | |
1231 | if (alg_mac) { | |
1232 | alg_mac &= ca_list[j]->algorithm_mac; | |
1233 | if (!alg_mac) { | |
1234 | found = 0; | |
1235 | break; | |
1236 | } | |
1237 | } else | |
1238 | alg_mac = ca_list[j]->algorithm_mac; | |
1239 | } | |
1240 | ||
361a1191 KR |
1241 | if (ca_list[j]->algo_strength) { |
1242 | if (algo_strength) { | |
1243 | algo_strength &= ca_list[j]->algo_strength; | |
1244 | if (!algo_strength) { | |
0f113f3e MC |
1245 | found = 0; |
1246 | break; | |
1247 | } | |
1248 | } else | |
361a1191 | 1249 | algo_strength = ca_list[j]->algo_strength; |
0f113f3e MC |
1250 | } |
1251 | ||
c84f7f4a MC |
1252 | if (ca_list[j]->algo_strength & SSL_DEFAULT_MASK) { |
1253 | if (algo_strength & SSL_DEFAULT_MASK) { | |
1254 | algo_strength &= | |
1255 | (ca_list[j]->algo_strength & SSL_DEFAULT_MASK) | | |
1256 | ~SSL_DEFAULT_MASK; | |
1257 | if (!(algo_strength & SSL_DEFAULT_MASK)) { | |
1258 | found = 0; | |
1259 | break; | |
1260 | } | |
1261 | } else | |
1262 | algo_strength |= | |
1263 | ca_list[j]->algo_strength & SSL_DEFAULT_MASK; | |
1264 | } | |
1265 | ||
0f113f3e MC |
1266 | if (ca_list[j]->valid) { |
1267 | /* | |
1268 | * explicit ciphersuite found; its protocol version does not | |
1269 | * become part of the search pattern! | |
1270 | */ | |
1271 | ||
1272 | cipher_id = ca_list[j]->id; | |
1273 | } else { | |
1274 | /* | |
1275 | * not an explicit ciphersuite; only in this case, the | |
1276 | * protocol version is considered part of the search pattern | |
1277 | */ | |
1278 | ||
3eb2aff4 KR |
1279 | if (ca_list[j]->min_tls) { |
1280 | if (min_tls != 0 && min_tls != ca_list[j]->min_tls) { | |
1281 | found = 0; | |
1282 | break; | |
1283 | } else { | |
1284 | min_tls = ca_list[j]->min_tls; | |
1285 | } | |
0f113f3e MC |
1286 | } |
1287 | } | |
1288 | ||
1289 | if (!multi) | |
1290 | break; | |
1291 | } | |
1292 | ||
1293 | /* | |
1294 | * Ok, we have the rule, now apply it | |
1295 | */ | |
1296 | if (rule == CIPHER_SPECIAL) { /* special command */ | |
1297 | ok = 0; | |
86885c28 | 1298 | if ((buflen == 8) && strncmp(buf, "STRENGTH", 8) == 0) |
0f113f3e | 1299 | ok = ssl_cipher_strength_sort(head_p, tail_p); |
86885c28 | 1300 | else if (buflen == 10 && strncmp(buf, "SECLEVEL=", 9) == 0) { |
0f113f3e MC |
1301 | int level = buf[9] - '0'; |
1302 | if (level < 0 || level > 5) { | |
1303 | SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, | |
1304 | SSL_R_INVALID_COMMAND); | |
1305 | } else { | |
1306 | c->sec_level = level; | |
1307 | ok = 1; | |
1308 | } | |
1309 | } else | |
1310 | SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, | |
1311 | SSL_R_INVALID_COMMAND); | |
1312 | if (ok == 0) | |
1313 | retval = 0; | |
1314 | /* | |
1315 | * We do not support any "multi" options | |
1316 | * together with "@", so throw away the | |
1317 | * rest of the command, if any left, until | |
1318 | * end or ':' is found. | |
1319 | */ | |
1320 | while ((*l != '\0') && !ITEM_SEP(*l)) | |
1321 | l++; | |
1322 | } else if (found) { | |
1323 | ssl_cipher_apply_rule(cipher_id, | |
1324 | alg_mkey, alg_auth, alg_enc, alg_mac, | |
3eb2aff4 | 1325 | min_tls, algo_strength, rule, -1, head_p, |
0f113f3e MC |
1326 | tail_p); |
1327 | } else { | |
1328 | while ((*l != '\0') && !ITEM_SEP(*l)) | |
1329 | l++; | |
1330 | } | |
1331 | if (*l == '\0') | |
1332 | break; /* done */ | |
1333 | } | |
1334 | ||
1335 | return (retval); | |
1336 | } | |
1337 | ||
14536c8c | 1338 | #ifndef OPENSSL_NO_EC |
2ea80354 | 1339 | static int check_suiteb_cipher_list(const SSL_METHOD *meth, CERT *c, |
0f113f3e MC |
1340 | const char **prule_str) |
1341 | { | |
1342 | unsigned int suiteb_flags = 0, suiteb_comb2 = 0; | |
13e228d6 | 1343 | if (strncmp(*prule_str, "SUITEB128ONLY", 13) == 0) { |
0f113f3e | 1344 | suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS_ONLY; |
13e228d6 | 1345 | } else if (strncmp(*prule_str, "SUITEB128C2", 11) == 0) { |
0f113f3e MC |
1346 | suiteb_comb2 = 1; |
1347 | suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS; | |
13e228d6 DSH |
1348 | } else if (strncmp(*prule_str, "SUITEB128", 9) == 0) { |
1349 | suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS; | |
1350 | } else if (strncmp(*prule_str, "SUITEB192", 9) == 0) { | |
0f113f3e | 1351 | suiteb_flags = SSL_CERT_FLAG_SUITEB_192_LOS; |
13e228d6 | 1352 | } |
0f113f3e MC |
1353 | |
1354 | if (suiteb_flags) { | |
1355 | c->cert_flags &= ~SSL_CERT_FLAG_SUITEB_128_LOS; | |
1356 | c->cert_flags |= suiteb_flags; | |
1357 | } else | |
1358 | suiteb_flags = c->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS; | |
1359 | ||
1360 | if (!suiteb_flags) | |
1361 | return 1; | |
1362 | /* Check version: if TLS 1.2 ciphers allowed we can use Suite B */ | |
1363 | ||
1364 | if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)) { | |
4fa52141 VD |
1365 | SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST, |
1366 | SSL_R_AT_LEAST_TLS_1_2_NEEDED_IN_SUITEB_MODE); | |
0f113f3e MC |
1367 | return 0; |
1368 | } | |
10bf4fc2 | 1369 | # ifndef OPENSSL_NO_EC |
0f113f3e MC |
1370 | switch (suiteb_flags) { |
1371 | case SSL_CERT_FLAG_SUITEB_128_LOS: | |
1372 | if (suiteb_comb2) | |
1373 | *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384"; | |
1374 | else | |
1375 | *prule_str = | |
1376 | "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384"; | |
1377 | break; | |
1378 | case SSL_CERT_FLAG_SUITEB_128_LOS_ONLY: | |
1379 | *prule_str = "ECDHE-ECDSA-AES128-GCM-SHA256"; | |
1380 | break; | |
1381 | case SSL_CERT_FLAG_SUITEB_192_LOS: | |
1382 | *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384"; | |
1383 | break; | |
1384 | } | |
0f113f3e MC |
1385 | return 1; |
1386 | # else | |
1387 | SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST, | |
1388 | SSL_R_ECDH_REQUIRED_FOR_SUITEB_MODE); | |
1389 | return 0; | |
1390 | # endif | |
1391 | } | |
14536c8c | 1392 | #endif |
2ea80354 | 1393 | |
0f113f3e MC |
1394 | STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method, STACK_OF(SSL_CIPHER) |
1395 | **cipher_list, STACK_OF(SSL_CIPHER) | |
1396 | **cipher_list_by_id, | |
1397 | const char *rule_str, CERT *c) | |
1398 | { | |
1399 | int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases; | |
6063453c | 1400 | uint32_t disabled_mkey, disabled_auth, disabled_enc, disabled_mac; |
0f113f3e MC |
1401 | STACK_OF(SSL_CIPHER) *cipherstack, *tmp_cipher_list; |
1402 | const char *rule_p; | |
1403 | CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr; | |
1404 | const SSL_CIPHER **ca_list = NULL; | |
1405 | ||
1406 | /* | |
1407 | * Return with error if nothing to do. | |
1408 | */ | |
1409 | if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL) | |
1410 | return NULL; | |
14536c8c | 1411 | #ifndef OPENSSL_NO_EC |
0f113f3e MC |
1412 | if (!check_suiteb_cipher_list(ssl_method, c, &rule_str)) |
1413 | return NULL; | |
14536c8c | 1414 | #endif |
2ea80354 | 1415 | |
0f113f3e MC |
1416 | /* |
1417 | * To reduce the work to do we only want to process the compiled | |
1418 | * in algorithms, so we first get the mask of disabled ciphers. | |
1419 | */ | |
633d49c7 DSH |
1420 | |
1421 | disabled_mkey = disabled_mkey_mask; | |
1422 | disabled_auth = disabled_auth_mask; | |
1423 | disabled_enc = disabled_enc_mask; | |
1424 | disabled_mac = disabled_mac_mask; | |
0f113f3e MC |
1425 | |
1426 | /* | |
1427 | * Now we have to collect the available ciphers from the compiled | |
1428 | * in ciphers. We cannot get more than the number compiled in, so | |
1429 | * it is used for allocation. | |
1430 | */ | |
1431 | num_of_ciphers = ssl_method->num_ciphers(); | |
55a9a16f | 1432 | |
b4faea50 | 1433 | co_list = OPENSSL_malloc(sizeof(*co_list) * num_of_ciphers); |
0f113f3e MC |
1434 | if (co_list == NULL) { |
1435 | SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
1436 | return (NULL); /* Failure */ | |
1437 | } | |
1438 | ||
1439 | ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers, | |
1440 | disabled_mkey, disabled_auth, disabled_enc, | |
6063453c | 1441 | disabled_mac, co_list, &head, |
0f113f3e MC |
1442 | &tail); |
1443 | ||
a556f342 | 1444 | /* Now arrange all ciphers by preference. */ |
0f113f3e MC |
1445 | |
1446 | /* | |
1447 | * Everything else being equal, prefer ephemeral ECDH over other key | |
a556f342 EK |
1448 | * exchange mechanisms. |
1449 | * For consistency, prefer ECDSA over RSA (though this only matters if the | |
1450 | * server has both certificates, and is using the DEFAULT, or a client | |
1451 | * preference). | |
0f113f3e | 1452 | */ |
a556f342 EK |
1453 | ssl_cipher_apply_rule(0, SSL_kECDHE, SSL_aECDSA, 0, 0, 0, 0, CIPHER_ADD, |
1454 | -1, &head, &tail); | |
0f113f3e MC |
1455 | ssl_cipher_apply_rule(0, SSL_kECDHE, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, |
1456 | &tail); | |
1457 | ssl_cipher_apply_rule(0, SSL_kECDHE, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, | |
1458 | &tail); | |
1459 | ||
a556f342 EK |
1460 | |
1461 | /* Within each strength group, we prefer GCM over CHACHA... */ | |
1462 | ssl_cipher_apply_rule(0, 0, 0, SSL_AESGCM, 0, 0, 0, CIPHER_ADD, -1, | |
1463 | &head, &tail); | |
1464 | ssl_cipher_apply_rule(0, 0, 0, SSL_CHACHA20, 0, 0, 0, CIPHER_ADD, -1, | |
1465 | &head, &tail); | |
1466 | ||
1467 | /* | |
1468 | * ...and generally, our preferred cipher is AES. | |
1469 | * Note that AEADs will be bumped to take preference after sorting by | |
1470 | * strength. | |
1471 | */ | |
1472 | ssl_cipher_apply_rule(0, 0, 0, SSL_AES ^ SSL_AESGCM, 0, 0, 0, CIPHER_ADD, | |
1473 | -1, &head, &tail); | |
0f113f3e MC |
1474 | |
1475 | /* Temporarily enable everything else for sorting */ | |
1476 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail); | |
1477 | ||
1478 | /* Low priority for MD5 */ | |
1479 | ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5, 0, 0, CIPHER_ORD, -1, &head, | |
1480 | &tail); | |
1481 | ||
1482 | /* | |
1483 | * Move anonymous ciphers to the end. Usually, these will remain | |
1484 | * disabled. (For applications that allow them, they aren't too bad, but | |
1485 | * we prefer authenticated ciphers.) | |
1486 | */ | |
1487 | ssl_cipher_apply_rule(0, 0, SSL_aNULL, 0, 0, 0, 0, CIPHER_ORD, -1, &head, | |
1488 | &tail); | |
1489 | ||
0f113f3e MC |
1490 | /* |
1491 | * ssl_cipher_apply_rule(0, 0, SSL_aDH, 0, 0, 0, 0, CIPHER_ORD, -1, | |
1492 | * &head, &tail); | |
1493 | */ | |
1494 | ssl_cipher_apply_rule(0, SSL_kRSA, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head, | |
1495 | &tail); | |
1496 | ssl_cipher_apply_rule(0, SSL_kPSK, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head, | |
1497 | &tail); | |
0f113f3e MC |
1498 | |
1499 | /* RC4 is sort-of broken -- move the the end */ | |
1500 | ssl_cipher_apply_rule(0, 0, 0, SSL_RC4, 0, 0, 0, CIPHER_ORD, -1, &head, | |
1501 | &tail); | |
1502 | ||
1503 | /* | |
1504 | * Now sort by symmetric encryption strength. The above ordering remains | |
1505 | * in force within each class | |
1506 | */ | |
1507 | if (!ssl_cipher_strength_sort(&head, &tail)) { | |
1508 | OPENSSL_free(co_list); | |
1509 | return NULL; | |
1510 | } | |
1511 | ||
a556f342 EK |
1512 | /* |
1513 | * Partially overrule strength sort to prefer TLS 1.2 ciphers/PRFs. | |
1514 | * TODO(openssl-team): is there an easier way to accomplish all this? | |
1515 | */ | |
3eb2aff4 | 1516 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, TLS1_2_VERSION, 0, CIPHER_BUMP, -1, |
a556f342 EK |
1517 | &head, &tail); |
1518 | ||
1519 | /* | |
1520 | * Irrespective of strength, enforce the following order: | |
1521 | * (EC)DHE + AEAD > (EC)DHE > rest of AEAD > rest. | |
1522 | * Within each group, ciphers remain sorted by strength and previous | |
1523 | * preference, i.e., | |
1524 | * 1) ECDHE > DHE | |
1525 | * 2) GCM > CHACHA | |
1526 | * 3) AES > rest | |
1527 | * 4) TLS 1.2 > legacy | |
1528 | * | |
1529 | * Because we now bump ciphers to the top of the list, we proceed in | |
1530 | * reverse order of preference. | |
1531 | */ | |
1532 | ssl_cipher_apply_rule(0, 0, 0, 0, SSL_AEAD, 0, 0, CIPHER_BUMP, -1, | |
1533 | &head, &tail); | |
1534 | ssl_cipher_apply_rule(0, SSL_kDHE | SSL_kECDHE, 0, 0, 0, 0, 0, | |
1535 | CIPHER_BUMP, -1, &head, &tail); | |
1536 | ssl_cipher_apply_rule(0, SSL_kDHE | SSL_kECDHE, 0, 0, SSL_AEAD, 0, 0, | |
1537 | CIPHER_BUMP, -1, &head, &tail); | |
1538 | ||
0f113f3e MC |
1539 | /* Now disable everything (maintaining the ordering!) */ |
1540 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail); | |
1541 | ||
1542 | /* | |
1543 | * We also need cipher aliases for selecting based on the rule_str. | |
1544 | * There might be two types of entries in the rule_str: 1) names | |
1545 | * of ciphers themselves 2) aliases for groups of ciphers. | |
1546 | * For 1) we need the available ciphers and for 2) the cipher | |
1547 | * groups of cipher_aliases added together in one list (otherwise | |
1548 | * we would be happy with just the cipher_aliases table). | |
1549 | */ | |
b6eb9827 | 1550 | num_of_group_aliases = OSSL_NELEM(cipher_aliases); |
0f113f3e | 1551 | num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1; |
b4faea50 | 1552 | ca_list = OPENSSL_malloc(sizeof(*ca_list) * num_of_alias_max); |
0f113f3e MC |
1553 | if (ca_list == NULL) { |
1554 | OPENSSL_free(co_list); | |
1555 | SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
1556 | return (NULL); /* Failure */ | |
1557 | } | |
1558 | ssl_cipher_collect_aliases(ca_list, num_of_group_aliases, | |
1559 | disabled_mkey, disabled_auth, disabled_enc, | |
6063453c | 1560 | disabled_mac, head); |
0f113f3e MC |
1561 | |
1562 | /* | |
1563 | * If the rule_string begins with DEFAULT, apply the default rule | |
1564 | * before using the (possibly available) additional rules. | |
1565 | */ | |
1566 | ok = 1; | |
1567 | rule_p = rule_str; | |
1568 | if (strncmp(rule_str, "DEFAULT", 7) == 0) { | |
1569 | ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST, | |
1570 | &head, &tail, ca_list, c); | |
1571 | rule_p += 7; | |
1572 | if (*rule_p == ':') | |
1573 | rule_p++; | |
1574 | } | |
1575 | ||
1576 | if (ok && (strlen(rule_p) > 0)) | |
1577 | ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list, c); | |
1578 | ||
b548a1f1 | 1579 | OPENSSL_free(ca_list); /* Not needed anymore */ |
0f113f3e MC |
1580 | |
1581 | if (!ok) { /* Rule processing failure */ | |
1582 | OPENSSL_free(co_list); | |
1583 | return (NULL); | |
1584 | } | |
1585 | ||
1586 | /* | |
1587 | * Allocate new "cipherstack" for the result, return with error | |
1588 | * if we cannot get one. | |
1589 | */ | |
1590 | if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL) { | |
1591 | OPENSSL_free(co_list); | |
1592 | return (NULL); | |
1593 | } | |
1594 | ||
1595 | /* | |
1596 | * The cipher selection for the list is done. The ciphers are added | |
1597 | * to the resulting precedence to the STACK_OF(SSL_CIPHER). | |
1598 | */ | |
1599 | for (curr = head; curr != NULL; curr = curr->next) { | |
1600 | if (curr->active | |
1601 | && (!FIPS_mode() || curr->cipher->algo_strength & SSL_FIPS)) { | |
1602 | if (!sk_SSL_CIPHER_push(cipherstack, curr->cipher)) { | |
1603 | OPENSSL_free(co_list); | |
1604 | sk_SSL_CIPHER_free(cipherstack); | |
1605 | return NULL; | |
1606 | } | |
d02b48c6 | 1607 | #ifdef CIPHER_DEBUG |
0f113f3e | 1608 | fprintf(stderr, "<%s>\n", curr->cipher->name); |
d02b48c6 | 1609 | #endif |
0f113f3e MC |
1610 | } |
1611 | } | |
1612 | OPENSSL_free(co_list); /* Not needed any longer */ | |
1613 | ||
1614 | tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack); | |
1615 | if (tmp_cipher_list == NULL) { | |
1616 | sk_SSL_CIPHER_free(cipherstack); | |
1617 | return NULL; | |
1618 | } | |
25aaa98a | 1619 | sk_SSL_CIPHER_free(*cipher_list); |
0f113f3e MC |
1620 | *cipher_list = cipherstack; |
1621 | if (*cipher_list_by_id != NULL) | |
1622 | sk_SSL_CIPHER_free(*cipher_list_by_id); | |
1623 | *cipher_list_by_id = tmp_cipher_list; | |
1624 | (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id, | |
1625 | ssl_cipher_ptr_id_cmp); | |
1626 | ||
1627 | sk_SSL_CIPHER_sort(*cipher_list_by_id); | |
1628 | return (cipherstack); | |
1629 | } | |
d02b48c6 | 1630 | |
7689ed34 | 1631 | char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len) |
0f113f3e | 1632 | { |
361a1191 | 1633 | const char *ver; |
0f113f3e | 1634 | const char *kx, *au, *enc, *mac; |
baf245ec | 1635 | uint32_t alg_mkey, alg_auth, alg_enc, alg_mac; |
0f113f3e | 1636 | static const char *format = |
361a1191 | 1637 | "%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s\n"; |
0f113f3e | 1638 | |
baf245ec RS |
1639 | if (buf == NULL) { |
1640 | len = 128; | |
1641 | buf = OPENSSL_malloc(len); | |
1642 | if (buf == NULL) | |
1643 | return NULL; | |
1644 | } else if (len < 128) | |
1645 | return NULL; | |
1646 | ||
0f113f3e MC |
1647 | alg_mkey = cipher->algorithm_mkey; |
1648 | alg_auth = cipher->algorithm_auth; | |
1649 | alg_enc = cipher->algorithm_enc; | |
1650 | alg_mac = cipher->algorithm_mac; | |
0f113f3e | 1651 | |
3eb2aff4 | 1652 | ver = ssl_protocol_to_string(cipher->min_tls); |
0f113f3e MC |
1653 | |
1654 | switch (alg_mkey) { | |
1655 | case SSL_kRSA: | |
361a1191 | 1656 | kx = "RSA"; |
0f113f3e | 1657 | break; |
0f113f3e | 1658 | case SSL_kDHE: |
361a1191 | 1659 | kx = "DH"; |
0f113f3e | 1660 | break; |
0f113f3e MC |
1661 | case SSL_kECDHE: |
1662 | kx = "ECDH"; | |
1663 | break; | |
1664 | case SSL_kPSK: | |
1665 | kx = "PSK"; | |
1666 | break; | |
8baac6a2 DSH |
1667 | case SSL_kRSAPSK: |
1668 | kx = "RSAPSK"; | |
1669 | break; | |
1670 | case SSL_kECDHEPSK: | |
1671 | kx = "ECDHEPSK"; | |
1672 | break; | |
1673 | case SSL_kDHEPSK: | |
1674 | kx = "DHEPSK"; | |
1675 | break; | |
0f113f3e MC |
1676 | case SSL_kSRP: |
1677 | kx = "SRP"; | |
1678 | break; | |
1679 | case SSL_kGOST: | |
1680 | kx = "GOST"; | |
1681 | break; | |
1682 | default: | |
1683 | kx = "unknown"; | |
1684 | } | |
1685 | ||
1686 | switch (alg_auth) { | |
1687 | case SSL_aRSA: | |
1688 | au = "RSA"; | |
1689 | break; | |
1690 | case SSL_aDSS: | |
1691 | au = "DSS"; | |
1692 | break; | |
0f113f3e MC |
1693 | case SSL_aNULL: |
1694 | au = "None"; | |
1695 | break; | |
1696 | case SSL_aECDSA: | |
1697 | au = "ECDSA"; | |
1698 | break; | |
1699 | case SSL_aPSK: | |
1700 | au = "PSK"; | |
1701 | break; | |
1702 | case SSL_aSRP: | |
1703 | au = "SRP"; | |
1704 | break; | |
0f113f3e MC |
1705 | case SSL_aGOST01: |
1706 | au = "GOST01"; | |
1707 | break; | |
e44380a9 DB |
1708 | /* New GOST ciphersuites have both SSL_aGOST12 and SSL_aGOST01 bits */ |
1709 | case (SSL_aGOST12 | SSL_aGOST01): | |
1710 | au = "GOST12"; | |
1711 | break; | |
0f113f3e MC |
1712 | default: |
1713 | au = "unknown"; | |
1714 | break; | |
1715 | } | |
1716 | ||
1717 | switch (alg_enc) { | |
1718 | case SSL_DES: | |
361a1191 | 1719 | enc = "DES(56)"; |
0f113f3e MC |
1720 | break; |
1721 | case SSL_3DES: | |
1722 | enc = "3DES(168)"; | |
1723 | break; | |
1724 | case SSL_RC4: | |
361a1191 | 1725 | enc = "RC4(128)"; |
0f113f3e MC |
1726 | break; |
1727 | case SSL_RC2: | |
361a1191 | 1728 | enc = "RC2(128)"; |
0f113f3e MC |
1729 | break; |
1730 | case SSL_IDEA: | |
1731 | enc = "IDEA(128)"; | |
1732 | break; | |
1733 | case SSL_eNULL: | |
1734 | enc = "None"; | |
1735 | break; | |
1736 | case SSL_AES128: | |
1737 | enc = "AES(128)"; | |
1738 | break; | |
1739 | case SSL_AES256: | |
1740 | enc = "AES(256)"; | |
1741 | break; | |
1742 | case SSL_AES128GCM: | |
1743 | enc = "AESGCM(128)"; | |
1744 | break; | |
1745 | case SSL_AES256GCM: | |
1746 | enc = "AESGCM(256)"; | |
1747 | break; | |
e75c5a79 DSH |
1748 | case SSL_AES128CCM: |
1749 | enc = "AESCCM(128)"; | |
1750 | break; | |
1751 | case SSL_AES256CCM: | |
1752 | enc = "AESCCM(256)"; | |
1753 | break; | |
3d3701ea DSH |
1754 | case SSL_AES128CCM8: |
1755 | enc = "AESCCM8(128)"; | |
1756 | break; | |
1757 | case SSL_AES256CCM8: | |
1758 | enc = "AESCCM8(256)"; | |
1759 | break; | |
0f113f3e MC |
1760 | case SSL_CAMELLIA128: |
1761 | enc = "Camellia(128)"; | |
1762 | break; | |
1763 | case SSL_CAMELLIA256: | |
1764 | enc = "Camellia(256)"; | |
1765 | break; | |
1766 | case SSL_SEED: | |
1767 | enc = "SEED(128)"; | |
1768 | break; | |
1769 | case SSL_eGOST2814789CNT: | |
e44380a9 | 1770 | case SSL_eGOST2814789CNT12: |
0f113f3e MC |
1771 | enc = "GOST89(256)"; |
1772 | break; | |
0d3587c7 MC |
1773 | case SSL_CHACHA20POLY1305: |
1774 | enc = "CHACHA20/POLY1305(256)"; | |
1775 | break; | |
0f113f3e MC |
1776 | default: |
1777 | enc = "unknown"; | |
1778 | break; | |
1779 | } | |
1780 | ||
1781 | switch (alg_mac) { | |
1782 | case SSL_MD5: | |
1783 | mac = "MD5"; | |
1784 | break; | |
1785 | case SSL_SHA1: | |
1786 | mac = "SHA1"; | |
1787 | break; | |
1788 | case SSL_SHA256: | |
1789 | mac = "SHA256"; | |
1790 | break; | |
1791 | case SSL_SHA384: | |
1792 | mac = "SHA384"; | |
1793 | break; | |
1794 | case SSL_AEAD: | |
1795 | mac = "AEAD"; | |
1796 | break; | |
1797 | case SSL_GOST89MAC: | |
e44380a9 | 1798 | case SSL_GOST89MAC12: |
0f113f3e MC |
1799 | mac = "GOST89"; |
1800 | break; | |
1801 | case SSL_GOST94: | |
1802 | mac = "GOST94"; | |
1803 | break; | |
e44380a9 DB |
1804 | case SSL_GOST12_256: |
1805 | case SSL_GOST12_512: | |
1806 | mac = "GOST2012"; | |
1807 | break; | |
0f113f3e MC |
1808 | default: |
1809 | mac = "unknown"; | |
1810 | break; | |
1811 | } | |
1812 | ||
361a1191 | 1813 | BIO_snprintf(buf, len, format, cipher->name, ver, kx, au, enc, mac); |
55a9a16f | 1814 | |
0f113f3e MC |
1815 | return (buf); |
1816 | } | |
d02b48c6 | 1817 | |
b11836a6 | 1818 | const char *SSL_CIPHER_get_version(const SSL_CIPHER *c) |
0f113f3e | 1819 | { |
0f113f3e | 1820 | if (c == NULL) |
baf245ec | 1821 | return "(NONE)"; |
3eb2aff4 | 1822 | return ssl_protocol_to_string(c->min_tls); |
0f113f3e | 1823 | } |
d02b48c6 RE |
1824 | |
1825 | /* return the actual cipher being used */ | |
0821bcd4 | 1826 | const char *SSL_CIPHER_get_name(const SSL_CIPHER *c) |
0f113f3e MC |
1827 | { |
1828 | if (c != NULL) | |
1829 | return (c->name); | |
1830 | return ("(NONE)"); | |
1831 | } | |
d02b48c6 | 1832 | |
657e60fa | 1833 | /* number of bits for symmetric cipher */ |
1c86d8fd | 1834 | int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits) |
0f113f3e | 1835 | { |
1c86d8fd | 1836 | int ret = 0; |
0f113f3e MC |
1837 | |
1838 | if (c != NULL) { | |
1839 | if (alg_bits != NULL) | |
1c86d8fd VD |
1840 | *alg_bits = (int) c->alg_bits; |
1841 | ret = (int) c->strength_bits; | |
0f113f3e | 1842 | } |
90d9e49a | 1843 | return ret; |
0f113f3e | 1844 | } |
d02b48c6 | 1845 | |
90d9e49a | 1846 | uint32_t SSL_CIPHER_get_id(const SSL_CIPHER *c) |
0f113f3e MC |
1847 | { |
1848 | return c->id; | |
1849 | } | |
08557cf2 | 1850 | |
6b691a5c | 1851 | SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n) |
0f113f3e MC |
1852 | { |
1853 | SSL_COMP *ctmp; | |
1854 | int i, nn; | |
1855 | ||
1856 | if ((n == 0) || (sk == NULL)) | |
1857 | return (NULL); | |
1858 | nn = sk_SSL_COMP_num(sk); | |
1859 | for (i = 0; i < nn; i++) { | |
1860 | ctmp = sk_SSL_COMP_value(sk, i); | |
1861 | if (ctmp->id == n) | |
1862 | return (ctmp); | |
1863 | } | |
1864 | return (NULL); | |
1865 | } | |
413c4f45 | 1866 | |
09b6c2ef | 1867 | #ifdef OPENSSL_NO_COMP |
9a555706 | 1868 | STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void) |
0f113f3e MC |
1869 | { |
1870 | return NULL; | |
1871 | } | |
9a555706 RS |
1872 | STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP) |
1873 | *meths) | |
0f113f3e | 1874 | { |
9a555706 | 1875 | return meths; |
0f113f3e | 1876 | } |
9a555706 | 1877 | void SSL_COMP_free_compression_methods(void) |
0f113f3e | 1878 | { |
0f113f3e | 1879 | } |
9a555706 RS |
1880 | int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm) |
1881 | { | |
1882 | return 1; | |
1883 | } | |
1884 | ||
09b6c2ef | 1885 | #else |
6b691a5c | 1886 | STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void) |
0f113f3e MC |
1887 | { |
1888 | load_builtin_compressions(); | |
1889 | return (ssl_comp_methods); | |
1890 | } | |
1891 | ||
1892 | STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP) | |
1893 | *meths) | |
1894 | { | |
1895 | STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods; | |
1896 | ssl_comp_methods = meths; | |
1897 | return old_meths; | |
1898 | } | |
cbb67448 | 1899 | |
db7b5e0d | 1900 | static void cmeth_free(SSL_COMP *cm) |
0f113f3e MC |
1901 | { |
1902 | OPENSSL_free(cm); | |
1903 | } | |
db7b5e0d DSH |
1904 | |
1905 | void SSL_COMP_free_compression_methods(void) | |
0f113f3e MC |
1906 | { |
1907 | STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods; | |
1908 | ssl_comp_methods = NULL; | |
1909 | sk_SSL_COMP_pop_free(old_meths, cmeth_free); | |
1910 | } | |
db7b5e0d | 1911 | |
6b691a5c | 1912 | int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm) |
0f113f3e MC |
1913 | { |
1914 | SSL_COMP *comp; | |
413c4f45 | 1915 | |
9a555706 | 1916 | if (cm == NULL || COMP_get_type(cm) == NID_undef) |
0f113f3e | 1917 | return 1; |
9f495243 | 1918 | |
50e735f9 MC |
1919 | /*- |
1920 | * According to draft-ietf-tls-compression-04.txt, the | |
1921 | * compression number ranges should be the following: | |
1922 | * | |
1923 | * 0 to 63: methods defined by the IETF | |
1924 | * 64 to 192: external party methods assigned by IANA | |
1925 | * 193 to 255: reserved for private use | |
1926 | */ | |
0f113f3e MC |
1927 | if (id < 193 || id > 255) { |
1928 | SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, | |
1929 | SSL_R_COMPRESSION_ID_NOT_WITHIN_PRIVATE_RANGE); | |
1930 | return 0; | |
1931 | } | |
1932 | ||
bbd86bf5 | 1933 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); |
b4faea50 | 1934 | comp = OPENSSL_malloc(sizeof(*comp)); |
0f113f3e | 1935 | if (comp == NULL) { |
bbd86bf5 | 1936 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e MC |
1937 | SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, ERR_R_MALLOC_FAILURE); |
1938 | return (1); | |
1939 | } | |
1940 | ||
1941 | comp->id = id; | |
1942 | comp->method = cm; | |
1943 | load_builtin_compressions(); | |
1944 | if (ssl_comp_methods && sk_SSL_COMP_find(ssl_comp_methods, comp) >= 0) { | |
1945 | OPENSSL_free(comp); | |
bbd86bf5 | 1946 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e MC |
1947 | SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, |
1948 | SSL_R_DUPLICATE_COMPRESSION_ID); | |
1949 | return (1); | |
bbd86bf5 RS |
1950 | } |
1951 | if ((ssl_comp_methods == NULL) | |
0f113f3e MC |
1952 | || !sk_SSL_COMP_push(ssl_comp_methods, comp)) { |
1953 | OPENSSL_free(comp); | |
bbd86bf5 | 1954 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e MC |
1955 | SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, ERR_R_MALLOC_FAILURE); |
1956 | return (1); | |
0f113f3e | 1957 | } |
bbd86bf5 RS |
1958 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
1959 | return (0); | |
0f113f3e | 1960 | } |
9a555706 | 1961 | #endif |
377dcdba RL |
1962 | |
1963 | const char *SSL_COMP_get_name(const COMP_METHOD *comp) | |
0f113f3e | 1964 | { |
9a555706 RS |
1965 | #ifndef OPENSSL_NO_COMP |
1966 | return comp ? COMP_get_name(comp) : NULL; | |
1967 | #else | |
0f113f3e | 1968 | return NULL; |
09b6c2ef | 1969 | #endif |
9a555706 RS |
1970 | } |
1971 | ||
d47c01a3 DSH |
1972 | /* For a cipher return the index corresponding to the certificate type */ |
1973 | int ssl_cipher_get_cert_index(const SSL_CIPHER *c) | |
0f113f3e | 1974 | { |
ce0c1f2b | 1975 | uint32_t alg_a; |
0f113f3e | 1976 | |
0f113f3e MC |
1977 | alg_a = c->algorithm_auth; |
1978 | ||
ce0c1f2b | 1979 | if (alg_a & SSL_aECDSA) |
0f113f3e | 1980 | return SSL_PKEY_ECC; |
0f113f3e MC |
1981 | else if (alg_a & SSL_aDSS) |
1982 | return SSL_PKEY_DSA_SIGN; | |
1983 | else if (alg_a & SSL_aRSA) | |
1984 | return SSL_PKEY_RSA_ENC; | |
e44380a9 DB |
1985 | else if (alg_a & SSL_aGOST12) |
1986 | return SSL_PKEY_GOST_EC; | |
0f113f3e MC |
1987 | else if (alg_a & SSL_aGOST01) |
1988 | return SSL_PKEY_GOST01; | |
e44380a9 | 1989 | |
0f113f3e MC |
1990 | return -1; |
1991 | } | |
d47c01a3 | 1992 | |
94a209d8 | 1993 | const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr) |
0f113f3e | 1994 | { |
1316ca80 TS |
1995 | const SSL_CIPHER *c = ssl->method->get_cipher_by_char(ptr); |
1996 | ||
0f113f3e MC |
1997 | if (c == NULL || c->valid == 0) |
1998 | return NULL; | |
1999 | return c; | |
2000 | } | |
94a209d8 DSH |
2001 | |
2002 | const SSL_CIPHER *SSL_CIPHER_find(SSL *ssl, const unsigned char *ptr) | |
0f113f3e MC |
2003 | { |
2004 | return ssl->method->get_cipher_by_char(ptr); | |
2005 | } | |
98c9ce2f DSH |
2006 | |
2007 | int SSL_CIPHER_get_cipher_nid(const SSL_CIPHER *c) | |
2008 | { | |
2009 | int i; | |
2010 | if (c == NULL) | |
3ec13237 | 2011 | return NID_undef; |
98c9ce2f DSH |
2012 | i = ssl_cipher_info_lookup(ssl_cipher_table_cipher, c->algorithm_enc); |
2013 | if (i == -1) | |
3ec13237 | 2014 | return NID_undef; |
98c9ce2f DSH |
2015 | return ssl_cipher_table_cipher[i].nid; |
2016 | } | |
2017 | ||
2018 | int SSL_CIPHER_get_digest_nid(const SSL_CIPHER *c) | |
2019 | { | |
1316ca80 TS |
2020 | int i = ssl_cipher_info_lookup(ssl_cipher_table_mac, c->algorithm_mac); |
2021 | ||
98c9ce2f | 2022 | if (i == -1) |
3ec13237 | 2023 | return NID_undef; |
98c9ce2f DSH |
2024 | return ssl_cipher_table_mac[i].nid; |
2025 | } | |
3ec13237 TS |
2026 | |
2027 | int SSL_CIPHER_get_kx_nid(const SSL_CIPHER *c) | |
2028 | { | |
2029 | int i = ssl_cipher_info_lookup(ssl_cipher_table_kx, c->algorithm_mkey); | |
1316ca80 | 2030 | |
3ec13237 TS |
2031 | if (i == -1) |
2032 | return NID_undef; | |
2033 | return ssl_cipher_table_kx[i].nid; | |
2034 | } | |
2035 | ||
2036 | int SSL_CIPHER_get_auth_nid(const SSL_CIPHER *c) | |
2037 | { | |
1316ca80 TS |
2038 | int i = ssl_cipher_info_lookup(ssl_cipher_table_auth, c->algorithm_auth); |
2039 | ||
3ec13237 TS |
2040 | if (i == -1) |
2041 | return NID_undef; | |
8eb33e4f | 2042 | return ssl_cipher_table_auth[i].nid; |
3ec13237 TS |
2043 | } |
2044 | ||
2045 | int SSL_CIPHER_is_aead(const SSL_CIPHER *c) | |
2046 | { | |
2047 | return (c->algorithm_mac & SSL_AEAD) ? 1 : 0; | |
2048 | } |