]>
Commit | Line | Data |
---|---|---|
d02b48c6 | 1 | /* ssl/ssl_ciph.c */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
3 | * All rights reserved. |
4 | * | |
5 | * This package is an SSL implementation written | |
6 | * by Eric Young (eay@cryptsoft.com). | |
7 | * The implementation was written so as to conform with Netscapes SSL. | |
0f113f3e | 8 | * |
d02b48c6 RE |
9 | * This library is free for commercial and non-commercial use as long as |
10 | * the following conditions are aheared to. The following conditions | |
11 | * apply to all code found in this distribution, be it the RC4, RSA, | |
12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
13 | * included with this distribution is covered by the same copyright terms | |
14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
0f113f3e | 15 | * |
d02b48c6 RE |
16 | * Copyright remains Eric Young's, and as such any Copyright notices in |
17 | * the code are not to be removed. | |
18 | * If this package is used in a product, Eric Young should be given attribution | |
19 | * as the author of the parts of the library used. | |
20 | * This can be in the form of a textual message at program startup or | |
21 | * in documentation (online or textual) provided with the package. | |
0f113f3e | 22 | * |
d02b48c6 RE |
23 | * Redistribution and use in source and binary forms, with or without |
24 | * modification, are permitted provided that the following conditions | |
25 | * are met: | |
26 | * 1. Redistributions of source code must retain the copyright | |
27 | * notice, this list of conditions and the following disclaimer. | |
28 | * 2. Redistributions in binary form must reproduce the above copyright | |
29 | * notice, this list of conditions and the following disclaimer in the | |
30 | * documentation and/or other materials provided with the distribution. | |
31 | * 3. All advertising materials mentioning features or use of this software | |
32 | * must display the following acknowledgement: | |
33 | * "This product includes cryptographic software written by | |
34 | * Eric Young (eay@cryptsoft.com)" | |
35 | * The word 'cryptographic' can be left out if the rouines from the library | |
36 | * being used are not cryptographic related :-). | |
0f113f3e | 37 | * 4. If you include any Windows specific code (or a derivative thereof) from |
d02b48c6 RE |
38 | * the apps directory (application code) you must include an acknowledgement: |
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
0f113f3e | 40 | * |
d02b48c6 RE |
41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
51 | * SUCH DAMAGE. | |
0f113f3e | 52 | * |
d02b48c6 RE |
53 | * The licence and distribution terms for any publically available version or |
54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
55 | * copied and put under another distribution licence | |
56 | * [including the GNU Public Licence.] | |
57 | */ | |
675f605d | 58 | /* ==================================================================== |
52b8dad8 | 59 | * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. |
675f605d BM |
60 | * |
61 | * Redistribution and use in source and binary forms, with or without | |
62 | * modification, are permitted provided that the following conditions | |
63 | * are met: | |
64 | * | |
65 | * 1. Redistributions of source code must retain the above copyright | |
0f113f3e | 66 | * notice, this list of conditions and the following disclaimer. |
675f605d BM |
67 | * |
68 | * 2. Redistributions in binary form must reproduce the above copyright | |
69 | * notice, this list of conditions and the following disclaimer in | |
70 | * the documentation and/or other materials provided with the | |
71 | * distribution. | |
72 | * | |
73 | * 3. All advertising materials mentioning features or use of this | |
74 | * software must display the following acknowledgment: | |
75 | * "This product includes software developed by the OpenSSL Project | |
76 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | |
77 | * | |
78 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
79 | * endorse or promote products derived from this software without | |
80 | * prior written permission. For written permission, please contact | |
81 | * openssl-core@openssl.org. | |
82 | * | |
83 | * 5. Products derived from this software may not be called "OpenSSL" | |
84 | * nor may "OpenSSL" appear in their names without prior written | |
85 | * permission of the OpenSSL Project. | |
86 | * | |
87 | * 6. Redistributions of any form whatsoever must retain the following | |
88 | * acknowledgment: | |
89 | * "This product includes software developed by the OpenSSL Project | |
90 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | |
91 | * | |
92 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
93 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
94 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
95 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
96 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
97 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
98 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
99 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
100 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
101 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
102 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
103 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
104 | * ==================================================================== | |
105 | * | |
106 | * This product includes cryptographic software written by Eric Young | |
107 | * (eay@cryptsoft.com). This product includes software written by Tim | |
108 | * Hudson (tjh@cryptsoft.com). | |
109 | * | |
110 | */ | |
ea262260 BM |
111 | /* ==================================================================== |
112 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | |
0f113f3e | 113 | * ECC cipher suite support in OpenSSL originally developed by |
ea262260 BM |
114 | * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. |
115 | */ | |
ddac1974 NL |
116 | /* ==================================================================== |
117 | * Copyright 2005 Nokia. All rights reserved. | |
118 | * | |
119 | * The portions of the attached software ("Contribution") is developed by | |
120 | * Nokia Corporation and is licensed pursuant to the OpenSSL open source | |
121 | * license. | |
122 | * | |
123 | * The Contribution, originally written by Mika Kousa and Pasi Eronen of | |
124 | * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites | |
125 | * support (see RFC 4279) to OpenSSL. | |
126 | * | |
127 | * No patent licenses or other rights except those expressly stated in | |
128 | * the OpenSSL open source license shall be deemed granted or received | |
129 | * expressly, by implication, estoppel, or otherwise. | |
130 | * | |
131 | * No assurances are provided by Nokia that the Contribution does not | |
132 | * infringe the patent or other intellectual property rights of any third | |
133 | * party or that the license provides you with all the necessary rights | |
134 | * to make use of the Contribution. | |
135 | * | |
136 | * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN | |
137 | * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA | |
138 | * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY | |
139 | * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR | |
140 | * OTHERWISE. | |
141 | */ | |
142 | ||
d02b48c6 | 143 | #include <stdio.h> |
ec577822 | 144 | #include <openssl/objects.h> |
fceac0bc | 145 | #ifndef OPENSSL_NO_COMP |
0f113f3e | 146 | # include <openssl/comp.h> |
fceac0bc | 147 | #endif |
70531c14 | 148 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e | 149 | # include <openssl/engine.h> |
70531c14 | 150 | #endif |
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 | |
167 | #define SSL_ENC_NUM_IDX 14 | |
168 | ||
98c9ce2f DSH |
169 | /* NB: make sure indices in these tables match values above */ |
170 | ||
171 | typedef struct { | |
172 | unsigned long mask; | |
173 | int nid; | |
174 | } ssl_cipher_table; | |
175 | ||
176 | /* Table of NIDs for each cipher */ | |
177 | static const ssl_cipher_table ssl_cipher_table_cipher[SSL_ENC_NUM_IDX] = { | |
178 | {SSL_DES, NID_des_cbc}, /* SSL_ENC_DES_IDX 0 */ | |
179 | {SSL_3DES, NID_des_ede3_cbc}, /* SSL_ENC_3DES_IDX 1 */ | |
180 | {SSL_RC4, NID_rc4}, /* SSL_ENC_RC4_IDX 2 */ | |
181 | {SSL_RC2, NID_rc2_cbc}, /* SSL_ENC_RC2_IDX 3 */ | |
182 | {SSL_IDEA, NID_idea_cbc}, /* SSL_ENC_IDEA_IDX 4 */ | |
183 | {SSL_eNULL, NID_undef}, /* SSL_ENC_NULL_IDX 5 */ | |
184 | {SSL_AES128, NID_aes_128_cbc}, /* SSL_ENC_AES128_IDX 6 */ | |
185 | {SSL_AES256, NID_aes_256_cbc}, /* SSL_ENC_AES256_IDX 7 */ | |
186 | {SSL_CAMELLIA128, NID_camellia_128_cbc}, /* SSL_ENC_CAMELLIA128_IDX 8 */ | |
187 | {SSL_CAMELLIA256, NID_camellia_256_cbc}, /* SSL_ENC_CAMELLIA256_IDX 9 */ | |
188 | {SSL_eGOST2814789CNT, NID_gost89_cnt}, /* SSL_ENC_GOST89_IDX 10 */ | |
189 | {SSL_SEED, NID_seed_cbc}, /* SSL_ENC_SEED_IDX 11 */ | |
190 | {SSL_AES128GCM, NID_aes_128_gcm}, /* SSL_ENC_AES128GCM_IDX 12 */ | |
191 | {SSL_AES256GCM, NID_aes_256_gcm} /* SSL_ENC_AES256GCM_IDX 13 */ | |
192 | }; | |
193 | ||
0f113f3e MC |
194 | static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX] = { |
195 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, | |
196 | NULL, NULL | |
197 | }; | |
198 | ||
199 | #define SSL_COMP_NULL_IDX 0 | |
200 | #define SSL_COMP_ZLIB_IDX 1 | |
201 | #define SSL_COMP_NUM_IDX 2 | |
202 | ||
203 | static STACK_OF(SSL_COMP) *ssl_comp_methods = NULL; | |
204 | ||
205 | #define SSL_MD_MD5_IDX 0 | |
206 | #define SSL_MD_SHA1_IDX 1 | |
b948e2c5 DSH |
207 | #define SSL_MD_GOST94_IDX 2 |
208 | #define SSL_MD_GOST89MAC_IDX 3 | |
7409d7ad | 209 | #define SSL_MD_SHA256_IDX 4 |
d09677ac | 210 | #define SSL_MD_SHA384_IDX 5 |
0f113f3e MC |
211 | /* |
212 | * Constant SSL_MAX_DIGEST equal to size of digests array should be defined | |
213 | * in the ssl_locl.h | |
b948e2c5 | 214 | */ |
98c9ce2f | 215 | |
0f113f3e | 216 | #define SSL_MD_NUM_IDX SSL_MAX_DIGEST |
98c9ce2f DSH |
217 | |
218 | /* NB: make sure indices in this table matches values above */ | |
219 | static const ssl_cipher_table ssl_cipher_table_mac[SSL_MD_NUM_IDX] = { | |
220 | {SSL_MD5, NID_md5}, /* SSL_MD_MD5_IDX 0 */ | |
221 | {SSL_SHA1, NID_sha1}, /* SSL_MD_SHA1_IDX 1 */ | |
222 | {SSL_GOST94, NID_id_GostR3411_94}, /* SSL_MD_GOST94_IDX 2 */ | |
223 | {SSL_GOST89MAC, NID_id_Gost28147_89_MAC}, /* SSL_MD_GOST89MAC_IDX 3 */ | |
224 | {SSL_SHA256, NID_sha256}, /* SSL_MD_SHA256_IDX 4 */ | |
225 | {SSL_SHA384, NID_sha384} /* SSL_MD_SHA384_IDX 5 */ | |
226 | }; | |
227 | ||
0f113f3e MC |
228 | static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX] = { |
229 | NULL, NULL, NULL, NULL, NULL, NULL | |
230 | }; | |
231 | ||
98c9ce2f DSH |
232 | /* Utility function for table lookup */ |
233 | static int ssl_cipher_info_find(const ssl_cipher_table * table, | |
234 | size_t table_cnt, unsigned long mask) | |
235 | { | |
236 | size_t i; | |
237 | for (i = 0; i < table_cnt; i++, table++) { | |
238 | if (table->mask == mask) | |
239 | return i; | |
240 | } | |
241 | return -1; | |
242 | } | |
243 | ||
244 | #define ssl_cipher_info_lookup(table, x) \ | |
b6eb9827 | 245 | ssl_cipher_info_find(table, OSSL_NELEM(table), x) |
98c9ce2f | 246 | |
0f113f3e MC |
247 | /* |
248 | * PKEY_TYPE for GOST89MAC is known in advance, but, because implementation | |
249 | * is engine-provided, we'll fill it only if corresponding EVP_PKEY_METHOD is | |
250 | * found | |
251 | */ | |
252 | static int ssl_mac_pkey_id[SSL_MD_NUM_IDX] = { | |
253 | EVP_PKEY_HMAC, EVP_PKEY_HMAC, EVP_PKEY_HMAC, NID_undef, | |
254 | EVP_PKEY_HMAC, EVP_PKEY_HMAC | |
255 | }; | |
256 | ||
257 | static int ssl_mac_secret_size[SSL_MD_NUM_IDX] = { | |
258 | 0, 0, 0, 0, 0, 0 | |
259 | }; | |
260 | ||
261 | static const int ssl_handshake_digest_flag[SSL_MD_NUM_IDX] = { | |
262 | SSL_HANDSHAKE_MAC_MD5, SSL_HANDSHAKE_MAC_SHA, | |
263 | SSL_HANDSHAKE_MAC_GOST94, 0, SSL_HANDSHAKE_MAC_SHA256, | |
264 | SSL_HANDSHAKE_MAC_SHA384 | |
265 | }; | |
266 | ||
267 | #define CIPHER_ADD 1 | |
268 | #define CIPHER_KILL 2 | |
269 | #define CIPHER_DEL 3 | |
270 | #define CIPHER_ORD 4 | |
271 | #define CIPHER_SPECIAL 5 | |
272 | ||
273 | typedef struct cipher_order_st { | |
274 | const SSL_CIPHER *cipher; | |
275 | int active; | |
276 | int dead; | |
277 | struct cipher_order_st *next, *prev; | |
278 | } CIPHER_ORDER; | |
279 | ||
280 | static const SSL_CIPHER cipher_aliases[] = { | |
281 | /* "ALL" doesn't include eNULL (must be specifically enabled) */ | |
282 | {0, SSL_TXT_ALL, 0, 0, 0, ~SSL_eNULL, 0, 0, 0, 0, 0, 0}, | |
283 | /* "COMPLEMENTOFALL" */ | |
284 | {0, SSL_TXT_CMPALL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0}, | |
285 | ||
286 | /* | |
287 | * "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in | |
288 | * ALL!) | |
289 | */ | |
290 | {0, SSL_TXT_CMPDEF, 0, SSL_kDHE | SSL_kECDHE, SSL_aNULL, ~SSL_eNULL, 0, 0, | |
291 | 0, 0, 0, 0}, | |
292 | ||
293 | /* | |
294 | * key exchange aliases (some of those using only a single bit here | |
295 | * combine multiple key exchange algs according to the RFCs, e.g. kDHE | |
296 | * combines DHE_DSS and DHE_RSA) | |
297 | */ | |
298 | {0, SSL_TXT_kRSA, 0, SSL_kRSA, 0, 0, 0, 0, 0, 0, 0, 0}, | |
299 | ||
300 | {0, SSL_TXT_kDHr, 0, SSL_kDHr, 0, 0, 0, 0, 0, 0, 0, 0}, | |
301 | {0, SSL_TXT_kDHd, 0, SSL_kDHd, 0, 0, 0, 0, 0, 0, 0, 0}, | |
302 | {0, SSL_TXT_kDH, 0, SSL_kDHr | SSL_kDHd, 0, 0, 0, 0, 0, 0, 0, 0}, | |
303 | {0, SSL_TXT_kEDH, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, 0}, | |
304 | {0, SSL_TXT_kDHE, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, 0}, | |
305 | {0, SSL_TXT_DH, 0, SSL_kDHr | SSL_kDHd | SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, | |
306 | 0}, | |
307 | ||
0f113f3e MC |
308 | {0, SSL_TXT_kECDHr, 0, SSL_kECDHr, 0, 0, 0, 0, 0, 0, 0, 0}, |
309 | {0, SSL_TXT_kECDHe, 0, SSL_kECDHe, 0, 0, 0, 0, 0, 0, 0, 0}, | |
310 | {0, SSL_TXT_kECDH, 0, SSL_kECDHr | SSL_kECDHe, 0, 0, 0, 0, 0, 0, 0, 0}, | |
311 | {0, SSL_TXT_kEECDH, 0, SSL_kECDHE, 0, 0, 0, 0, 0, 0, 0, 0}, | |
312 | {0, SSL_TXT_kECDHE, 0, SSL_kECDHE, 0, 0, 0, 0, 0, 0, 0, 0}, | |
313 | {0, SSL_TXT_ECDH, 0, SSL_kECDHr | SSL_kECDHe | SSL_kECDHE, 0, 0, 0, 0, 0, | |
314 | 0, 0, 0}, | |
315 | ||
316 | {0, SSL_TXT_kPSK, 0, SSL_kPSK, 0, 0, 0, 0, 0, 0, 0, 0}, | |
dcbd5060 DSH |
317 | {0, SSL_TXT_kRSAPSK, 0, SSL_kRSAPSK, 0, 0, 0, 0, 0, 0, 0, 0}, |
318 | {0, SSL_TXT_kECDHEPSK, 0, SSL_kECDHEPSK, 0, 0, 0, 0, 0, 0, 0, 0}, | |
319 | {0, SSL_TXT_kDHEPSK, 0, SSL_kDHEPSK, 0, 0, 0, 0, 0, 0, 0, 0}, | |
0f113f3e MC |
320 | {0, SSL_TXT_kSRP, 0, SSL_kSRP, 0, 0, 0, 0, 0, 0, 0, 0}, |
321 | {0, SSL_TXT_kGOST, 0, SSL_kGOST, 0, 0, 0, 0, 0, 0, 0, 0}, | |
322 | ||
323 | /* server authentication aliases */ | |
324 | {0, SSL_TXT_aRSA, 0, 0, SSL_aRSA, 0, 0, 0, 0, 0, 0, 0}, | |
325 | {0, SSL_TXT_aDSS, 0, 0, SSL_aDSS, 0, 0, 0, 0, 0, 0, 0}, | |
326 | {0, SSL_TXT_DSS, 0, 0, SSL_aDSS, 0, 0, 0, 0, 0, 0, 0}, | |
0f113f3e MC |
327 | {0, SSL_TXT_aNULL, 0, 0, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0}, |
328 | /* no such ciphersuites supported! */ | |
329 | {0, SSL_TXT_aDH, 0, 0, SSL_aDH, 0, 0, 0, 0, 0, 0, 0}, | |
330 | {0, SSL_TXT_aECDH, 0, 0, SSL_aECDH, 0, 0, 0, 0, 0, 0, 0}, | |
331 | {0, SSL_TXT_aECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0}, | |
332 | {0, SSL_TXT_ECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0}, | |
333 | {0, SSL_TXT_aPSK, 0, 0, SSL_aPSK, 0, 0, 0, 0, 0, 0, 0}, | |
0f113f3e | 334 | {0, SSL_TXT_aGOST01, 0, 0, SSL_aGOST01, 0, 0, 0, 0, 0, 0, 0}, |
ade44dcb | 335 | {0, SSL_TXT_aGOST, 0, 0, SSL_aGOST01, 0, 0, 0, 0, 0, 0, 0}, |
0f113f3e MC |
336 | {0, SSL_TXT_aSRP, 0, 0, SSL_aSRP, 0, 0, 0, 0, 0, 0, 0}, |
337 | ||
338 | /* aliases combining key exchange and server authentication */ | |
339 | {0, SSL_TXT_EDH, 0, SSL_kDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0}, | |
340 | {0, SSL_TXT_DHE, 0, SSL_kDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0}, | |
341 | {0, SSL_TXT_EECDH, 0, SSL_kECDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0}, | |
342 | {0, SSL_TXT_ECDHE, 0, SSL_kECDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0}, | |
343 | {0, SSL_TXT_NULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0}, | |
0f113f3e MC |
344 | {0, SSL_TXT_RSA, 0, SSL_kRSA, SSL_aRSA, 0, 0, 0, 0, 0, 0, 0}, |
345 | {0, SSL_TXT_ADH, 0, SSL_kDHE, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0}, | |
346 | {0, SSL_TXT_AECDH, 0, SSL_kECDHE, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0}, | |
dcbd5060 | 347 | {0, SSL_TXT_PSK, 0, SSL_PSK, 0, 0, 0, 0, 0, 0, 0, 0}, |
0f113f3e MC |
348 | {0, SSL_TXT_SRP, 0, SSL_kSRP, 0, 0, 0, 0, 0, 0, 0, 0}, |
349 | ||
350 | /* symmetric encryption aliases */ | |
351 | {0, SSL_TXT_DES, 0, 0, 0, SSL_DES, 0, 0, 0, 0, 0, 0}, | |
352 | {0, SSL_TXT_3DES, 0, 0, 0, SSL_3DES, 0, 0, 0, 0, 0, 0}, | |
353 | {0, SSL_TXT_RC4, 0, 0, 0, SSL_RC4, 0, 0, 0, 0, 0, 0}, | |
354 | {0, SSL_TXT_RC2, 0, 0, 0, SSL_RC2, 0, 0, 0, 0, 0, 0}, | |
355 | {0, SSL_TXT_IDEA, 0, 0, 0, SSL_IDEA, 0, 0, 0, 0, 0, 0}, | |
356 | {0, SSL_TXT_SEED, 0, 0, 0, SSL_SEED, 0, 0, 0, 0, 0, 0}, | |
357 | {0, SSL_TXT_eNULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0}, | |
358 | {0, SSL_TXT_AES128, 0, 0, 0, SSL_AES128 | SSL_AES128GCM, 0, 0, 0, 0, 0, | |
359 | 0}, | |
360 | {0, SSL_TXT_AES256, 0, 0, 0, SSL_AES256 | SSL_AES256GCM, 0, 0, 0, 0, 0, | |
361 | 0}, | |
362 | {0, SSL_TXT_AES, 0, 0, 0, SSL_AES, 0, 0, 0, 0, 0, 0}, | |
363 | {0, SSL_TXT_AES_GCM, 0, 0, 0, SSL_AES128GCM | SSL_AES256GCM, 0, 0, 0, 0, | |
364 | 0, 0}, | |
365 | {0, SSL_TXT_CAMELLIA128, 0, 0, 0, SSL_CAMELLIA128, 0, 0, 0, 0, 0, 0}, | |
366 | {0, SSL_TXT_CAMELLIA256, 0, 0, 0, SSL_CAMELLIA256, 0, 0, 0, 0, 0, 0}, | |
367 | {0, SSL_TXT_CAMELLIA, 0, 0, 0, SSL_CAMELLIA128 | SSL_CAMELLIA256, 0, 0, 0, | |
368 | 0, 0, 0}, | |
369 | ||
370 | /* MAC aliases */ | |
371 | {0, SSL_TXT_MD5, 0, 0, 0, 0, SSL_MD5, 0, 0, 0, 0, 0}, | |
372 | {0, SSL_TXT_SHA1, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0}, | |
373 | {0, SSL_TXT_SHA, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0}, | |
374 | {0, SSL_TXT_GOST94, 0, 0, 0, 0, SSL_GOST94, 0, 0, 0, 0, 0}, | |
375 | {0, SSL_TXT_GOST89MAC, 0, 0, 0, 0, SSL_GOST89MAC, 0, 0, 0, 0, 0}, | |
376 | {0, SSL_TXT_SHA256, 0, 0, 0, 0, SSL_SHA256, 0, 0, 0, 0, 0}, | |
377 | {0, SSL_TXT_SHA384, 0, 0, 0, 0, SSL_SHA384, 0, 0, 0, 0, 0}, | |
378 | ||
379 | /* protocol version aliases */ | |
380 | {0, SSL_TXT_SSLV3, 0, 0, 0, 0, 0, SSL_SSLV3, 0, 0, 0, 0}, | |
381 | {0, SSL_TXT_TLSV1, 0, 0, 0, 0, 0, SSL_TLSV1, 0, 0, 0, 0}, | |
382 | {0, SSL_TXT_TLSV1_2, 0, 0, 0, 0, 0, SSL_TLSV1_2, 0, 0, 0, 0}, | |
383 | ||
384 | /* export flag */ | |
385 | {0, SSL_TXT_EXP, 0, 0, 0, 0, 0, 0, SSL_EXPORT, 0, 0, 0}, | |
386 | {0, SSL_TXT_EXPORT, 0, 0, 0, 0, 0, 0, SSL_EXPORT, 0, 0, 0}, | |
387 | ||
388 | /* strength classes */ | |
389 | {0, SSL_TXT_EXP40, 0, 0, 0, 0, 0, 0, SSL_EXP40, 0, 0, 0}, | |
390 | {0, SSL_TXT_EXP56, 0, 0, 0, 0, 0, 0, SSL_EXP56, 0, 0, 0}, | |
391 | {0, SSL_TXT_LOW, 0, 0, 0, 0, 0, 0, SSL_LOW, 0, 0, 0}, | |
392 | {0, SSL_TXT_MEDIUM, 0, 0, 0, 0, 0, 0, SSL_MEDIUM, 0, 0, 0}, | |
393 | {0, SSL_TXT_HIGH, 0, 0, 0, 0, 0, 0, SSL_HIGH, 0, 0, 0}, | |
394 | /* FIPS 140-2 approved ciphersuite */ | |
395 | {0, SSL_TXT_FIPS, 0, 0, 0, ~SSL_eNULL, 0, 0, SSL_FIPS, 0, 0, 0}, | |
396 | ||
397 | /* "EDH-" aliases to "DHE-" labels (for backward compatibility) */ | |
398 | {0, SSL3_TXT_EDH_DSS_DES_40_CBC_SHA, 0, | |
399 | SSL_kDHE, SSL_aDSS, SSL_DES, SSL_SHA1, SSL_SSLV3, SSL_EXPORT | SSL_EXP40, | |
400 | 0, 0, 0,}, | |
401 | {0, SSL3_TXT_EDH_DSS_DES_64_CBC_SHA, 0, | |
402 | SSL_kDHE, SSL_aDSS, SSL_DES, SSL_SHA1, SSL_SSLV3, SSL_NOT_EXP | SSL_LOW, | |
403 | 0, 0, 0,}, | |
404 | {0, SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA, 0, | |
405 | SSL_kDHE, SSL_aDSS, SSL_3DES, SSL_SHA1, SSL_SSLV3, | |
406 | SSL_NOT_EXP | SSL_HIGH | SSL_FIPS, 0, 0, 0,}, | |
407 | {0, SSL3_TXT_EDH_RSA_DES_40_CBC_SHA, 0, | |
408 | SSL_kDHE, SSL_aRSA, SSL_DES, SSL_SHA1, SSL_SSLV3, SSL_EXPORT | SSL_EXP40, | |
409 | 0, 0, 0,}, | |
410 | {0, SSL3_TXT_EDH_RSA_DES_64_CBC_SHA, 0, | |
411 | SSL_kDHE, SSL_aRSA, SSL_DES, SSL_SHA1, SSL_SSLV3, SSL_NOT_EXP | SSL_LOW, | |
412 | 0, 0, 0,}, | |
413 | {0, SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA, 0, | |
414 | SSL_kDHE, SSL_aRSA, SSL_3DES, SSL_SHA1, SSL_SSLV3, | |
415 | SSL_NOT_EXP | SSL_HIGH | SSL_FIPS, 0, 0, 0,}, | |
416 | ||
417 | }; | |
418 | ||
419 | /* | |
420 | * Search for public key algorithm with given name and return its pkey_id if | |
421 | * it is available. Otherwise return 0 | |
81025661 | 422 | */ |
70531c14 DSH |
423 | #ifdef OPENSSL_NO_ENGINE |
424 | ||
81025661 | 425 | static int get_optional_pkey_id(const char *pkey_name) |
0f113f3e MC |
426 | { |
427 | const EVP_PKEY_ASN1_METHOD *ameth; | |
428 | int pkey_id = 0; | |
429 | ameth = EVP_PKEY_asn1_find_str(NULL, pkey_name, -1); | |
430 | if (ameth) { | |
431 | EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth); | |
432 | } | |
433 | return pkey_id; | |
434 | } | |
d02b48c6 | 435 | |
70531c14 DSH |
436 | #else |
437 | ||
438 | static int get_optional_pkey_id(const char *pkey_name) | |
0f113f3e MC |
439 | { |
440 | const EVP_PKEY_ASN1_METHOD *ameth; | |
441 | ENGINE *tmpeng = NULL; | |
442 | int pkey_id = 0; | |
443 | ameth = EVP_PKEY_asn1_find_str(&tmpeng, pkey_name, -1); | |
444 | if (ameth) { | |
445 | EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth); | |
446 | } | |
447 | if (tmpeng) | |
448 | ENGINE_finish(tmpeng); | |
449 | return pkey_id; | |
450 | } | |
70531c14 DSH |
451 | |
452 | #endif | |
453 | ||
633d49c7 DSH |
454 | /* masks of disabled algorithms */ |
455 | static unsigned long disabled_enc_mask; | |
456 | static unsigned long disabled_mac_mask; | |
457 | static unsigned long disabled_mkey_mask; | |
458 | static unsigned long disabled_auth_mask; | |
459 | ||
7f3c9036 | 460 | void ssl_load_ciphers(void) |
0f113f3e | 461 | { |
98c9ce2f DSH |
462 | size_t i; |
463 | const ssl_cipher_table *t; | |
633d49c7 | 464 | disabled_enc_mask = 0; |
98c9ce2f | 465 | for (i = 0, t = ssl_cipher_table_cipher; i < SSL_ENC_NUM_IDX; i++, t++) { |
633d49c7 | 466 | if (t->nid == NID_undef) { |
98c9ce2f | 467 | ssl_cipher_methods[i] = NULL; |
633d49c7 DSH |
468 | } else { |
469 | const EVP_CIPHER *cipher = EVP_get_cipherbynid(t->nid); | |
470 | ssl_cipher_methods[i] = cipher; | |
471 | if (cipher == NULL) | |
472 | disabled_enc_mask |= t->mask; | |
473 | } | |
0f113f3e | 474 | } |
633d49c7 DSH |
475 | #ifdef SSL_FORBID_ENULL |
476 | disabled_enc_mask |= SSL_eNULL; | |
477 | #endif | |
478 | disabled_mac_mask = 0; | |
98c9ce2f | 479 | for (i = 0, t = ssl_cipher_table_mac; i < SSL_MD_NUM_IDX; i++, t++) { |
633d49c7 DSH |
480 | const EVP_MD *md = EVP_get_digestbynid(t->nid); |
481 | ssl_digest_methods[i] = md; | |
482 | if (md == NULL) { | |
483 | disabled_mac_mask |= t->mask; | |
484 | } else { | |
485 | ssl_mac_secret_size[i] = EVP_MD_size(md); | |
98c9ce2f DSH |
486 | OPENSSL_assert(ssl_mac_secret_size[i] >= 0); |
487 | } | |
488 | } | |
489 | /* Make sure we can access MD5 and SHA1 */ | |
490 | OPENSSL_assert(ssl_digest_methods[SSL_MD_MD5_IDX] != NULL); | |
491 | OPENSSL_assert(ssl_digest_methods[SSL_MD_SHA1_IDX] != NULL); | |
633d49c7 DSH |
492 | |
493 | disabled_mkey_mask = 0; | |
494 | disabled_auth_mask = 0; | |
495 | ||
496 | #ifdef OPENSSL_NO_RSA | |
332a251f | 497 | disabled_mkey_mask |= SSL_kRSA | SSL_kRSAPSK; |
633d49c7 DSH |
498 | disabled_auth_mask |= SSL_aRSA; |
499 | #endif | |
500 | #ifdef OPENSSL_NO_DSA | |
501 | disabled_auth_mask |= SSL_aDSS; | |
502 | #endif | |
503 | #ifdef OPENSSL_NO_DH | |
332a251f | 504 | disabled_mkey_mask |= SSL_kDHr | SSL_kDHd | SSL_kDHE | SSL_kDHEPSK; |
633d49c7 DSH |
505 | disabled_auth_mask |= SSL_aDH; |
506 | #endif | |
507 | #ifdef OPENSSL_NO_EC | |
332a251f | 508 | disabled_mkey_mask |= SSL_kECDHe | SSL_kECDHr | SSL_kECDHEPSK; |
633d49c7 DSH |
509 | disabled_auth_mask |= SSL_aECDSA | SSL_aECDH; |
510 | #endif | |
511 | #ifdef OPENSSL_NO_PSK | |
332a251f | 512 | disabled_mkey_mask |= SSL_PSK; |
633d49c7 DSH |
513 | disabled_auth_mask |= SSL_aPSK; |
514 | #endif | |
515 | #ifdef OPENSSL_NO_SRP | |
516 | disabled_mkey_mask |= SSL_kSRP; | |
517 | #endif | |
518 | ||
519 | /* | |
520 | * Check for presence of GOST 34.10 algorithms, and if they are not | |
521 | * present, disable appropriate auth and key exchange | |
522 | */ | |
e1fa652d DSH |
523 | ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX] = get_optional_pkey_id("gost-mac"); |
524 | if (ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]) { | |
525 | ssl_mac_secret_size[SSL_MD_GOST89MAC_IDX] = 32; | |
633d49c7 DSH |
526 | } else { |
527 | disabled_mac_mask |= SSL_GOST89MAC; | |
e1fa652d | 528 | } |
633d49c7 | 529 | |
633d49c7 DSH |
530 | if (!get_optional_pkey_id("gost2001")) |
531 | disabled_auth_mask |= SSL_aGOST01; | |
532 | /* | |
533 | * Disable GOST key exchange if no GOST signature algs are available * | |
534 | */ | |
ade44dcb | 535 | if ((disabled_auth_mask & SSL_aGOST01) == SSL_aGOST01) |
633d49c7 | 536 | disabled_mkey_mask |= SSL_kGOST; |
0f113f3e MC |
537 | } |
538 | ||
09b6c2ef DSH |
539 | #ifndef OPENSSL_NO_COMP |
540 | ||
0f113f3e MC |
541 | static int sk_comp_cmp(const SSL_COMP *const *a, const SSL_COMP *const *b) |
542 | { | |
543 | return ((*a)->id - (*b)->id); | |
544 | } | |
7ba666fa RL |
545 | |
546 | static void load_builtin_compressions(void) | |
0f113f3e MC |
547 | { |
548 | int got_write_lock = 0; | |
549 | ||
550 | CRYPTO_r_lock(CRYPTO_LOCK_SSL); | |
551 | if (ssl_comp_methods == NULL) { | |
552 | CRYPTO_r_unlock(CRYPTO_LOCK_SSL); | |
553 | CRYPTO_w_lock(CRYPTO_LOCK_SSL); | |
554 | got_write_lock = 1; | |
555 | ||
556 | if (ssl_comp_methods == NULL) { | |
557 | SSL_COMP *comp = NULL; | |
9a555706 | 558 | COMP_METHOD *method = COMP_zlib(); |
0f113f3e MC |
559 | |
560 | MemCheck_off(); | |
561 | ssl_comp_methods = sk_SSL_COMP_new(sk_comp_cmp); | |
9a555706 RS |
562 | if (COMP_get_type(method) != NID_undef |
563 | && ssl_comp_methods != NULL) { | |
b4faea50 | 564 | comp = OPENSSL_malloc(sizeof(*comp)); |
0f113f3e | 565 | if (comp != NULL) { |
9a555706 RS |
566 | comp->method = method; |
567 | comp->id = SSL_COMP_ZLIB_IDX; | |
568 | comp->name = COMP_get_name(method); | |
569 | sk_SSL_COMP_push(ssl_comp_methods, comp); | |
570 | sk_SSL_COMP_sort(ssl_comp_methods); | |
0f113f3e | 571 | } |
0f113f3e MC |
572 | } |
573 | MemCheck_on(); | |
574 | } | |
575 | } | |
576 | ||
577 | if (got_write_lock) | |
578 | CRYPTO_w_unlock(CRYPTO_LOCK_SSL); | |
579 | else | |
580 | CRYPTO_r_unlock(CRYPTO_LOCK_SSL); | |
581 | } | |
09b6c2ef | 582 | #endif |
7ba666fa | 583 | |
0821bcd4 | 584 | int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc, |
0f113f3e MC |
585 | const EVP_MD **md, int *mac_pkey_type, |
586 | int *mac_secret_size, SSL_COMP **comp, int use_etm) | |
587 | { | |
588 | int i; | |
589 | const SSL_CIPHER *c; | |
590 | ||
591 | c = s->cipher; | |
592 | if (c == NULL) | |
593 | return (0); | |
594 | if (comp != NULL) { | |
595 | SSL_COMP ctmp; | |
09b6c2ef | 596 | #ifndef OPENSSL_NO_COMP |
0f113f3e | 597 | load_builtin_compressions(); |
09b6c2ef | 598 | #endif |
413c4f45 | 599 | |
0f113f3e MC |
600 | *comp = NULL; |
601 | ctmp.id = s->compress_meth; | |
602 | if (ssl_comp_methods != NULL) { | |
603 | i = sk_SSL_COMP_find(ssl_comp_methods, &ctmp); | |
604 | if (i >= 0) | |
605 | *comp = sk_SSL_COMP_value(ssl_comp_methods, i); | |
606 | else | |
607 | *comp = NULL; | |
608 | } | |
69f68237 | 609 | /* If were only interested in comp then return success */ |
61986d32 | 610 | if ((enc == NULL) && (md == NULL)) |
69f68237 | 611 | return 1; |
0f113f3e MC |
612 | } |
613 | ||
614 | if ((enc == NULL) || (md == NULL)) | |
69f68237 | 615 | return 0; |
0f113f3e | 616 | |
98c9ce2f | 617 | i = ssl_cipher_info_lookup(ssl_cipher_table_cipher, c->algorithm_enc); |
0f113f3e | 618 | |
98c9ce2f | 619 | if (i == -1) |
0f113f3e MC |
620 | *enc = NULL; |
621 | else { | |
622 | if (i == SSL_ENC_NULL_IDX) | |
623 | *enc = EVP_enc_null(); | |
624 | else | |
625 | *enc = ssl_cipher_methods[i]; | |
626 | } | |
627 | ||
98c9ce2f DSH |
628 | i = ssl_cipher_info_lookup(ssl_cipher_table_mac, c->algorithm_mac); |
629 | if (i == -1) { | |
0f113f3e MC |
630 | *md = NULL; |
631 | if (mac_pkey_type != NULL) | |
632 | *mac_pkey_type = NID_undef; | |
633 | if (mac_secret_size != NULL) | |
634 | *mac_secret_size = 0; | |
635 | if (c->algorithm_mac == SSL_AEAD) | |
636 | mac_pkey_type = NULL; | |
637 | } else { | |
638 | *md = ssl_digest_methods[i]; | |
639 | if (mac_pkey_type != NULL) | |
640 | *mac_pkey_type = ssl_mac_pkey_id[i]; | |
641 | if (mac_secret_size != NULL) | |
642 | *mac_secret_size = ssl_mac_secret_size[i]; | |
643 | } | |
644 | ||
645 | if ((*enc != NULL) && | |
646 | (*md != NULL || (EVP_CIPHER_flags(*enc) & EVP_CIPH_FLAG_AEAD_CIPHER)) | |
647 | && (!mac_pkey_type || *mac_pkey_type != NID_undef)) { | |
648 | const EVP_CIPHER *evp; | |
649 | ||
650 | if (use_etm) | |
651 | return 1; | |
652 | ||
653 | if (s->ssl_version >> 8 != TLS1_VERSION_MAJOR || | |
654 | s->ssl_version < TLS1_VERSION) | |
655 | return 1; | |
656 | ||
657 | if (FIPS_mode()) | |
658 | return 1; | |
659 | ||
660 | if (c->algorithm_enc == SSL_RC4 && | |
661 | c->algorithm_mac == SSL_MD5 && | |
662 | (evp = EVP_get_cipherbyname("RC4-HMAC-MD5"))) | |
663 | *enc = evp, *md = NULL; | |
664 | else if (c->algorithm_enc == SSL_AES128 && | |
665 | c->algorithm_mac == SSL_SHA1 && | |
666 | (evp = EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA1"))) | |
667 | *enc = evp, *md = NULL; | |
668 | else if (c->algorithm_enc == SSL_AES256 && | |
669 | c->algorithm_mac == SSL_SHA1 && | |
670 | (evp = EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA1"))) | |
671 | *enc = evp, *md = NULL; | |
672 | else if (c->algorithm_enc == SSL_AES128 && | |
673 | c->algorithm_mac == SSL_SHA256 && | |
674 | (evp = EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA256"))) | |
675 | *enc = evp, *md = NULL; | |
676 | else if (c->algorithm_enc == SSL_AES256 && | |
677 | c->algorithm_mac == SSL_SHA256 && | |
678 | (evp = EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA256"))) | |
679 | *enc = evp, *md = NULL; | |
680 | return (1); | |
681 | } else | |
682 | return (0); | |
683 | } | |
684 | ||
685 | int ssl_get_handshake_digest(int idx, long *mask, const EVP_MD **md) | |
81025661 | 686 | { |
0f113f3e MC |
687 | if (idx < 0 || idx >= SSL_MD_NUM_IDX) { |
688 | return 0; | |
689 | } | |
690 | *mask = ssl_handshake_digest_flag[idx]; | |
691 | if (*mask) | |
692 | *md = ssl_digest_methods[idx]; | |
693 | else | |
694 | *md = NULL; | |
695 | return 1; | |
81025661 DSH |
696 | } |
697 | ||
58964a49 | 698 | #define ITEM_SEP(a) \ |
0f113f3e | 699 | (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ',')) |
58964a49 | 700 | |
6b691a5c | 701 | static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr, |
0f113f3e MC |
702 | CIPHER_ORDER **tail) |
703 | { | |
704 | if (curr == *tail) | |
705 | return; | |
706 | if (curr == *head) | |
707 | *head = curr->next; | |
708 | if (curr->prev != NULL) | |
709 | curr->prev->next = curr->next; | |
710 | if (curr->next != NULL) | |
711 | curr->next->prev = curr->prev; | |
712 | (*tail)->next = curr; | |
713 | curr->prev = *tail; | |
714 | curr->next = NULL; | |
715 | *tail = curr; | |
716 | } | |
58964a49 | 717 | |
fd5bc65c | 718 | static void ll_append_head(CIPHER_ORDER **head, CIPHER_ORDER *curr, |
0f113f3e MC |
719 | CIPHER_ORDER **tail) |
720 | { | |
721 | if (curr == *head) | |
722 | return; | |
723 | if (curr == *tail) | |
724 | *tail = curr->prev; | |
725 | if (curr->next != NULL) | |
726 | curr->next->prev = curr->prev; | |
727 | if (curr->prev != NULL) | |
728 | curr->prev->next = curr->next; | |
729 | (*head)->prev = curr; | |
730 | curr->next = *head; | |
731 | curr->prev = NULL; | |
732 | *head = curr; | |
733 | } | |
734 | ||
018e57c7 | 735 | static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method, |
0f113f3e MC |
736 | int num_of_ciphers, |
737 | unsigned long disabled_mkey, | |
738 | unsigned long disabled_auth, | |
739 | unsigned long disabled_enc, | |
740 | unsigned long disabled_mac, | |
741 | unsigned long disabled_ssl, | |
742 | CIPHER_ORDER *co_list, | |
743 | CIPHER_ORDER **head_p, | |
744 | CIPHER_ORDER **tail_p) | |
745 | { | |
746 | int i, co_list_num; | |
747 | const SSL_CIPHER *c; | |
748 | ||
749 | /* | |
750 | * We have num_of_ciphers descriptions compiled in, depending on the | |
751 | * method selected (SSLv3, TLSv1 etc). | |
752 | * These will later be sorted in a linked list with at most num | |
753 | * entries. | |
754 | */ | |
755 | ||
756 | /* Get the initial list of ciphers */ | |
757 | co_list_num = 0; /* actual count of ciphers */ | |
758 | for (i = 0; i < num_of_ciphers; i++) { | |
759 | c = ssl_method->get_cipher(i); | |
760 | /* drop those that use any of that is not available */ | |
761 | if ((c != NULL) && c->valid && | |
762 | (!FIPS_mode() || (c->algo_strength & SSL_FIPS)) && | |
763 | !(c->algorithm_mkey & disabled_mkey) && | |
764 | !(c->algorithm_auth & disabled_auth) && | |
765 | !(c->algorithm_enc & disabled_enc) && | |
766 | !(c->algorithm_mac & disabled_mac) && | |
767 | !(c->algorithm_ssl & disabled_ssl)) { | |
768 | co_list[co_list_num].cipher = c; | |
769 | co_list[co_list_num].next = NULL; | |
770 | co_list[co_list_num].prev = NULL; | |
771 | co_list[co_list_num].active = 0; | |
772 | co_list_num++; | |
0f113f3e MC |
773 | /* |
774 | * if (!sk_push(ca_list,(char *)c)) goto err; | |
775 | */ | |
776 | } | |
777 | } | |
778 | ||
779 | /* | |
780 | * Prepare linked list from list entries | |
781 | */ | |
782 | if (co_list_num > 0) { | |
783 | co_list[0].prev = NULL; | |
784 | ||
785 | if (co_list_num > 1) { | |
786 | co_list[0].next = &co_list[1]; | |
787 | ||
788 | for (i = 1; i < co_list_num - 1; i++) { | |
789 | co_list[i].prev = &co_list[i - 1]; | |
790 | co_list[i].next = &co_list[i + 1]; | |
791 | } | |
792 | ||
793 | co_list[co_list_num - 1].prev = &co_list[co_list_num - 2]; | |
794 | } | |
795 | ||
796 | co_list[co_list_num - 1].next = NULL; | |
797 | ||
798 | *head_p = &co_list[0]; | |
799 | *tail_p = &co_list[co_list_num - 1]; | |
800 | } | |
801 | } | |
d02b48c6 | 802 | |
babb3798 | 803 | static void ssl_cipher_collect_aliases(const SSL_CIPHER **ca_list, |
0f113f3e MC |
804 | int num_of_group_aliases, |
805 | unsigned long disabled_mkey, | |
806 | unsigned long disabled_auth, | |
807 | unsigned long disabled_enc, | |
808 | unsigned long disabled_mac, | |
809 | unsigned long disabled_ssl, | |
810 | CIPHER_ORDER *head) | |
811 | { | |
812 | CIPHER_ORDER *ciph_curr; | |
813 | const SSL_CIPHER **ca_curr; | |
814 | int i; | |
815 | unsigned long mask_mkey = ~disabled_mkey; | |
816 | unsigned long mask_auth = ~disabled_auth; | |
817 | unsigned long mask_enc = ~disabled_enc; | |
818 | unsigned long mask_mac = ~disabled_mac; | |
819 | unsigned long mask_ssl = ~disabled_ssl; | |
820 | ||
821 | /* | |
822 | * First, add the real ciphers as already collected | |
823 | */ | |
824 | ciph_curr = head; | |
825 | ca_curr = ca_list; | |
826 | while (ciph_curr != NULL) { | |
827 | *ca_curr = ciph_curr->cipher; | |
828 | ca_curr++; | |
829 | ciph_curr = ciph_curr->next; | |
830 | } | |
831 | ||
832 | /* | |
833 | * Now we add the available ones from the cipher_aliases[] table. | |
834 | * They represent either one or more algorithms, some of which | |
835 | * in any affected category must be supported (set in enabled_mask), | |
836 | * or represent a cipher strength value (will be added in any case because algorithms=0). | |
837 | */ | |
838 | for (i = 0; i < num_of_group_aliases; i++) { | |
839 | unsigned long algorithm_mkey = cipher_aliases[i].algorithm_mkey; | |
840 | unsigned long algorithm_auth = cipher_aliases[i].algorithm_auth; | |
841 | unsigned long algorithm_enc = cipher_aliases[i].algorithm_enc; | |
842 | unsigned long algorithm_mac = cipher_aliases[i].algorithm_mac; | |
843 | unsigned long algorithm_ssl = cipher_aliases[i].algorithm_ssl; | |
844 | ||
845 | if (algorithm_mkey) | |
846 | if ((algorithm_mkey & mask_mkey) == 0) | |
847 | continue; | |
848 | ||
849 | if (algorithm_auth) | |
850 | if ((algorithm_auth & mask_auth) == 0) | |
851 | continue; | |
852 | ||
853 | if (algorithm_enc) | |
854 | if ((algorithm_enc & mask_enc) == 0) | |
855 | continue; | |
856 | ||
857 | if (algorithm_mac) | |
858 | if ((algorithm_mac & mask_mac) == 0) | |
859 | continue; | |
860 | ||
861 | if (algorithm_ssl) | |
862 | if ((algorithm_ssl & mask_ssl) == 0) | |
863 | continue; | |
864 | ||
865 | *ca_curr = (SSL_CIPHER *)(cipher_aliases + i); | |
866 | ca_curr++; | |
867 | } | |
868 | ||
869 | *ca_curr = NULL; /* end of list */ | |
870 | } | |
d02b48c6 | 871 | |
52b8dad8 | 872 | static void ssl_cipher_apply_rule(unsigned long cipher_id, |
0f113f3e MC |
873 | unsigned long alg_mkey, |
874 | unsigned long alg_auth, | |
875 | unsigned long alg_enc, | |
876 | unsigned long alg_mac, | |
877 | unsigned long alg_ssl, | |
878 | unsigned long algo_strength, int rule, | |
879 | int strength_bits, CIPHER_ORDER **head_p, | |
880 | CIPHER_ORDER **tail_p) | |
881 | { | |
882 | CIPHER_ORDER *head, *tail, *curr, *next, *last; | |
883 | const SSL_CIPHER *cp; | |
884 | int reverse = 0; | |
018e57c7 DSH |
885 | |
886 | #ifdef CIPHER_DEBUG | |
0f113f3e MC |
887 | fprintf(stderr, |
888 | "Applying rule %d with %08lx/%08lx/%08lx/%08lx/%08lx %08lx (%d)\n", | |
889 | rule, alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, | |
890 | algo_strength, strength_bits); | |
018e57c7 | 891 | #endif |
d02b48c6 | 892 | |
0f113f3e MC |
893 | if (rule == CIPHER_DEL) |
894 | reverse = 1; /* needed to maintain sorting between | |
895 | * currently deleted ciphers */ | |
896 | ||
897 | head = *head_p; | |
898 | tail = *tail_p; | |
899 | ||
900 | if (reverse) { | |
901 | next = tail; | |
902 | last = head; | |
903 | } else { | |
904 | next = head; | |
905 | last = tail; | |
906 | } | |
907 | ||
908 | curr = NULL; | |
909 | for (;;) { | |
910 | if (curr == last) | |
911 | break; | |
912 | ||
913 | curr = next; | |
914 | ||
915 | if (curr == NULL) | |
916 | break; | |
917 | ||
918 | next = reverse ? curr->prev : curr->next; | |
919 | ||
920 | cp = curr->cipher; | |
921 | ||
922 | /* | |
923 | * Selection criteria is either the value of strength_bits | |
924 | * or the algorithms used. | |
925 | */ | |
926 | if (strength_bits >= 0) { | |
927 | if (strength_bits != cp->strength_bits) | |
928 | continue; | |
929 | } else { | |
018e57c7 | 930 | #ifdef CIPHER_DEBUG |
0f113f3e MC |
931 | fprintf(stderr, |
932 | "\nName: %s:\nAlgo = %08lx/%08lx/%08lx/%08lx/%08lx Algo_strength = %08lx\n", | |
933 | cp->name, cp->algorithm_mkey, cp->algorithm_auth, | |
934 | cp->algorithm_enc, cp->algorithm_mac, cp->algorithm_ssl, | |
935 | cp->algo_strength); | |
018e57c7 | 936 | #endif |
323fa645 | 937 | #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL |
0f113f3e MC |
938 | if (cipher_id && cipher_id != cp->id) |
939 | continue; | |
323fa645 | 940 | #endif |
0f113f3e MC |
941 | if (alg_mkey && !(alg_mkey & cp->algorithm_mkey)) |
942 | continue; | |
943 | if (alg_auth && !(alg_auth & cp->algorithm_auth)) | |
944 | continue; | |
945 | if (alg_enc && !(alg_enc & cp->algorithm_enc)) | |
946 | continue; | |
947 | if (alg_mac && !(alg_mac & cp->algorithm_mac)) | |
948 | continue; | |
949 | if (alg_ssl && !(alg_ssl & cp->algorithm_ssl)) | |
950 | continue; | |
951 | if ((algo_strength & SSL_EXP_MASK) | |
952 | && !(algo_strength & SSL_EXP_MASK & cp->algo_strength)) | |
953 | continue; | |
954 | if ((algo_strength & SSL_STRONG_MASK) | |
955 | && !(algo_strength & SSL_STRONG_MASK & cp->algo_strength)) | |
956 | continue; | |
957 | } | |
018e57c7 DSH |
958 | |
959 | #ifdef CIPHER_DEBUG | |
0f113f3e | 960 | fprintf(stderr, "Action = %d\n", rule); |
018e57c7 DSH |
961 | #endif |
962 | ||
0f113f3e MC |
963 | /* add the cipher if it has not been added yet. */ |
964 | if (rule == CIPHER_ADD) { | |
965 | /* reverse == 0 */ | |
966 | if (!curr->active) { | |
967 | ll_append_tail(&head, curr, &tail); | |
968 | curr->active = 1; | |
969 | } | |
970 | } | |
971 | /* Move the added cipher to this location */ | |
972 | else if (rule == CIPHER_ORD) { | |
973 | /* reverse == 0 */ | |
974 | if (curr->active) { | |
975 | ll_append_tail(&head, curr, &tail); | |
976 | } | |
977 | } else if (rule == CIPHER_DEL) { | |
978 | /* reverse == 1 */ | |
979 | if (curr->active) { | |
980 | /* | |
981 | * most recently deleted ciphersuites get best positions for | |
982 | * any future CIPHER_ADD (note that the CIPHER_DEL loop works | |
983 | * in reverse to maintain the order) | |
984 | */ | |
985 | ll_append_head(&head, curr, &tail); | |
986 | curr->active = 0; | |
987 | } | |
988 | } else if (rule == CIPHER_KILL) { | |
989 | /* reverse == 0 */ | |
990 | if (head == curr) | |
991 | head = curr->next; | |
992 | else | |
993 | curr->prev->next = curr->next; | |
994 | if (tail == curr) | |
995 | tail = curr->prev; | |
996 | curr->active = 0; | |
997 | if (curr->next != NULL) | |
998 | curr->next->prev = curr->prev; | |
999 | if (curr->prev != NULL) | |
1000 | curr->prev->next = curr->next; | |
1001 | curr->next = NULL; | |
1002 | curr->prev = NULL; | |
1003 | } | |
1004 | } | |
1005 | ||
1006 | *head_p = head; | |
1007 | *tail_p = tail; | |
1008 | } | |
018e57c7 | 1009 | |
a717831d | 1010 | static int ssl_cipher_strength_sort(CIPHER_ORDER **head_p, |
0f113f3e MC |
1011 | CIPHER_ORDER **tail_p) |
1012 | { | |
1013 | int max_strength_bits, i, *number_uses; | |
1014 | CIPHER_ORDER *curr; | |
1015 | ||
1016 | /* | |
1017 | * This routine sorts the ciphers with descending strength. The sorting | |
1018 | * must keep the pre-sorted sequence, so we apply the normal sorting | |
1019 | * routine as '+' movement to the end of the list. | |
1020 | */ | |
1021 | max_strength_bits = 0; | |
1022 | curr = *head_p; | |
1023 | while (curr != NULL) { | |
1024 | if (curr->active && (curr->cipher->strength_bits > max_strength_bits)) | |
1025 | max_strength_bits = curr->cipher->strength_bits; | |
1026 | curr = curr->next; | |
1027 | } | |
1028 | ||
16f8d4eb | 1029 | number_uses = OPENSSL_malloc(sizeof(int) * (max_strength_bits + 1)); |
0f113f3e MC |
1030 | if (!number_uses) { |
1031 | SSLerr(SSL_F_SSL_CIPHER_STRENGTH_SORT, ERR_R_MALLOC_FAILURE); | |
1032 | return (0); | |
1033 | } | |
16f8d4eb | 1034 | memset(number_uses, 0, sizeof(int) * (max_strength_bits + 1)); |
0f113f3e MC |
1035 | |
1036 | /* | |
1037 | * Now find the strength_bits values actually used | |
1038 | */ | |
1039 | curr = *head_p; | |
1040 | while (curr != NULL) { | |
1041 | if (curr->active) | |
1042 | number_uses[curr->cipher->strength_bits]++; | |
1043 | curr = curr->next; | |
1044 | } | |
1045 | /* | |
1046 | * Go through the list of used strength_bits values in descending | |
1047 | * order. | |
1048 | */ | |
1049 | for (i = max_strength_bits; i >= 0; i--) | |
1050 | if (number_uses[i] > 0) | |
1051 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ORD, i, head_p, | |
1052 | tail_p); | |
1053 | ||
1054 | OPENSSL_free(number_uses); | |
1055 | return (1); | |
1056 | } | |
018e57c7 DSH |
1057 | |
1058 | static int ssl_cipher_process_rulestr(const char *rule_str, | |
0f113f3e MC |
1059 | CIPHER_ORDER **head_p, |
1060 | CIPHER_ORDER **tail_p, | |
1061 | const SSL_CIPHER **ca_list, CERT *c) | |
1062 | { | |
1063 | unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, | |
1064 | algo_strength; | |
1065 | const char *l, *buf; | |
1066 | int j, multi, found, rule, retval, ok, buflen; | |
1067 | unsigned long cipher_id = 0; | |
1068 | char ch; | |
1069 | ||
1070 | retval = 1; | |
1071 | l = rule_str; | |
1072 | for (;;) { | |
1073 | ch = *l; | |
1074 | ||
1075 | if (ch == '\0') | |
1076 | break; /* done */ | |
1077 | if (ch == '-') { | |
1078 | rule = CIPHER_DEL; | |
1079 | l++; | |
1080 | } else if (ch == '+') { | |
1081 | rule = CIPHER_ORD; | |
1082 | l++; | |
1083 | } else if (ch == '!') { | |
1084 | rule = CIPHER_KILL; | |
1085 | l++; | |
1086 | } else if (ch == '@') { | |
1087 | rule = CIPHER_SPECIAL; | |
1088 | l++; | |
1089 | } else { | |
1090 | rule = CIPHER_ADD; | |
1091 | } | |
1092 | ||
1093 | if (ITEM_SEP(ch)) { | |
1094 | l++; | |
1095 | continue; | |
1096 | } | |
1097 | ||
1098 | alg_mkey = 0; | |
1099 | alg_auth = 0; | |
1100 | alg_enc = 0; | |
1101 | alg_mac = 0; | |
1102 | alg_ssl = 0; | |
1103 | algo_strength = 0; | |
1104 | ||
1105 | for (;;) { | |
1106 | ch = *l; | |
1107 | buf = l; | |
1108 | buflen = 0; | |
ca570cfd | 1109 | #ifndef CHARSET_EBCDIC |
0f113f3e MC |
1110 | while (((ch >= 'A') && (ch <= 'Z')) || |
1111 | ((ch >= '0') && (ch <= '9')) || | |
1112 | ((ch >= 'a') && (ch <= 'z')) || | |
1113 | (ch == '-') || (ch == '.') || (ch == '=')) | |
ca570cfd | 1114 | #else |
0f113f3e | 1115 | while (isalnum(ch) || (ch == '-') || (ch == '.') || (ch == '=')) |
ca570cfd | 1116 | #endif |
0f113f3e MC |
1117 | { |
1118 | ch = *(++l); | |
1119 | buflen++; | |
1120 | } | |
1121 | ||
1122 | if (buflen == 0) { | |
1123 | /* | |
1124 | * We hit something we cannot deal with, | |
1125 | * it is no command or separator nor | |
1126 | * alphanumeric, so we call this an error. | |
1127 | */ | |
1128 | SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, | |
1129 | SSL_R_INVALID_COMMAND); | |
1130 | retval = found = 0; | |
1131 | l++; | |
1132 | break; | |
1133 | } | |
1134 | ||
1135 | if (rule == CIPHER_SPECIAL) { | |
1136 | found = 0; /* unused -- avoid compiler warning */ | |
1137 | break; /* special treatment */ | |
1138 | } | |
1139 | ||
1140 | /* check for multi-part specification */ | |
1141 | if (ch == '+') { | |
1142 | multi = 1; | |
1143 | l++; | |
1144 | } else | |
1145 | multi = 0; | |
1146 | ||
1147 | /* | |
1148 | * Now search for the cipher alias in the ca_list. Be careful | |
1149 | * with the strncmp, because the "buflen" limitation | |
1150 | * will make the rule "ADH:SOME" and the cipher | |
1151 | * "ADH-MY-CIPHER" look like a match for buflen=3. | |
1152 | * So additionally check whether the cipher name found | |
1153 | * has the correct length. We can save a strlen() call: | |
1154 | * just checking for the '\0' at the right place is | |
1155 | * sufficient, we have to strncmp() anyway. (We cannot | |
1156 | * use strcmp(), because buf is not '\0' terminated.) | |
1157 | */ | |
1158 | j = found = 0; | |
1159 | cipher_id = 0; | |
1160 | while (ca_list[j]) { | |
86885c28 RS |
1161 | if (strncmp(buf, ca_list[j]->name, buflen) == 0 |
1162 | && (ca_list[j]->name[buflen] == '\0')) { | |
0f113f3e MC |
1163 | found = 1; |
1164 | break; | |
1165 | } else | |
1166 | j++; | |
1167 | } | |
1168 | ||
1169 | if (!found) | |
1170 | break; /* ignore this entry */ | |
1171 | ||
1172 | if (ca_list[j]->algorithm_mkey) { | |
1173 | if (alg_mkey) { | |
1174 | alg_mkey &= ca_list[j]->algorithm_mkey; | |
1175 | if (!alg_mkey) { | |
1176 | found = 0; | |
1177 | break; | |
1178 | } | |
1179 | } else | |
1180 | alg_mkey = ca_list[j]->algorithm_mkey; | |
1181 | } | |
1182 | ||
1183 | if (ca_list[j]->algorithm_auth) { | |
1184 | if (alg_auth) { | |
1185 | alg_auth &= ca_list[j]->algorithm_auth; | |
1186 | if (!alg_auth) { | |
1187 | found = 0; | |
1188 | break; | |
1189 | } | |
1190 | } else | |
1191 | alg_auth = ca_list[j]->algorithm_auth; | |
1192 | } | |
1193 | ||
1194 | if (ca_list[j]->algorithm_enc) { | |
1195 | if (alg_enc) { | |
1196 | alg_enc &= ca_list[j]->algorithm_enc; | |
1197 | if (!alg_enc) { | |
1198 | found = 0; | |
1199 | break; | |
1200 | } | |
1201 | } else | |
1202 | alg_enc = ca_list[j]->algorithm_enc; | |
1203 | } | |
1204 | ||
1205 | if (ca_list[j]->algorithm_mac) { | |
1206 | if (alg_mac) { | |
1207 | alg_mac &= ca_list[j]->algorithm_mac; | |
1208 | if (!alg_mac) { | |
1209 | found = 0; | |
1210 | break; | |
1211 | } | |
1212 | } else | |
1213 | alg_mac = ca_list[j]->algorithm_mac; | |
1214 | } | |
1215 | ||
1216 | if (ca_list[j]->algo_strength & SSL_EXP_MASK) { | |
1217 | if (algo_strength & SSL_EXP_MASK) { | |
1218 | algo_strength &= | |
1219 | (ca_list[j]->algo_strength & SSL_EXP_MASK) | | |
1220 | ~SSL_EXP_MASK; | |
1221 | if (!(algo_strength & SSL_EXP_MASK)) { | |
1222 | found = 0; | |
1223 | break; | |
1224 | } | |
1225 | } else | |
1226 | algo_strength |= ca_list[j]->algo_strength & SSL_EXP_MASK; | |
1227 | } | |
1228 | ||
1229 | if (ca_list[j]->algo_strength & SSL_STRONG_MASK) { | |
1230 | if (algo_strength & SSL_STRONG_MASK) { | |
1231 | algo_strength &= | |
1232 | (ca_list[j]->algo_strength & SSL_STRONG_MASK) | | |
1233 | ~SSL_STRONG_MASK; | |
1234 | if (!(algo_strength & SSL_STRONG_MASK)) { | |
1235 | found = 0; | |
1236 | break; | |
1237 | } | |
1238 | } else | |
1239 | algo_strength |= | |
1240 | ca_list[j]->algo_strength & SSL_STRONG_MASK; | |
1241 | } | |
1242 | ||
1243 | if (ca_list[j]->valid) { | |
1244 | /* | |
1245 | * explicit ciphersuite found; its protocol version does not | |
1246 | * become part of the search pattern! | |
1247 | */ | |
1248 | ||
1249 | cipher_id = ca_list[j]->id; | |
1250 | } else { | |
1251 | /* | |
1252 | * not an explicit ciphersuite; only in this case, the | |
1253 | * protocol version is considered part of the search pattern | |
1254 | */ | |
1255 | ||
1256 | if (ca_list[j]->algorithm_ssl) { | |
1257 | if (alg_ssl) { | |
1258 | alg_ssl &= ca_list[j]->algorithm_ssl; | |
1259 | if (!alg_ssl) { | |
1260 | found = 0; | |
1261 | break; | |
1262 | } | |
1263 | } else | |
1264 | alg_ssl = ca_list[j]->algorithm_ssl; | |
1265 | } | |
1266 | } | |
1267 | ||
1268 | if (!multi) | |
1269 | break; | |
1270 | } | |
1271 | ||
1272 | /* | |
1273 | * Ok, we have the rule, now apply it | |
1274 | */ | |
1275 | if (rule == CIPHER_SPECIAL) { /* special command */ | |
1276 | ok = 0; | |
86885c28 | 1277 | if ((buflen == 8) && strncmp(buf, "STRENGTH", 8) == 0) |
0f113f3e | 1278 | ok = ssl_cipher_strength_sort(head_p, tail_p); |
86885c28 | 1279 | else if (buflen == 10 && strncmp(buf, "SECLEVEL=", 9) == 0) { |
0f113f3e MC |
1280 | int level = buf[9] - '0'; |
1281 | if (level < 0 || level > 5) { | |
1282 | SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, | |
1283 | SSL_R_INVALID_COMMAND); | |
1284 | } else { | |
1285 | c->sec_level = level; | |
1286 | ok = 1; | |
1287 | } | |
1288 | } else | |
1289 | SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, | |
1290 | SSL_R_INVALID_COMMAND); | |
1291 | if (ok == 0) | |
1292 | retval = 0; | |
1293 | /* | |
1294 | * We do not support any "multi" options | |
1295 | * together with "@", so throw away the | |
1296 | * rest of the command, if any left, until | |
1297 | * end or ':' is found. | |
1298 | */ | |
1299 | while ((*l != '\0') && !ITEM_SEP(*l)) | |
1300 | l++; | |
1301 | } else if (found) { | |
1302 | ssl_cipher_apply_rule(cipher_id, | |
1303 | alg_mkey, alg_auth, alg_enc, alg_mac, | |
1304 | alg_ssl, algo_strength, rule, -1, head_p, | |
1305 | tail_p); | |
1306 | } else { | |
1307 | while ((*l != '\0') && !ITEM_SEP(*l)) | |
1308 | l++; | |
1309 | } | |
1310 | if (*l == '\0') | |
1311 | break; /* done */ | |
1312 | } | |
1313 | ||
1314 | return (retval); | |
1315 | } | |
1316 | ||
14536c8c | 1317 | #ifndef OPENSSL_NO_EC |
2ea80354 | 1318 | static int check_suiteb_cipher_list(const SSL_METHOD *meth, CERT *c, |
0f113f3e MC |
1319 | const char **prule_str) |
1320 | { | |
1321 | unsigned int suiteb_flags = 0, suiteb_comb2 = 0; | |
86885c28 | 1322 | if (strcmp(*prule_str, "SUITEB128") == 0) |
0f113f3e | 1323 | suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS; |
86885c28 | 1324 | else if (strcmp(*prule_str, "SUITEB128ONLY") == 0) |
0f113f3e | 1325 | suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS_ONLY; |
86885c28 | 1326 | else if (strcmp(*prule_str, "SUITEB128C2") == 0) { |
0f113f3e MC |
1327 | suiteb_comb2 = 1; |
1328 | suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS; | |
86885c28 | 1329 | } else if (strcmp(*prule_str, "SUITEB192") == 0) |
0f113f3e MC |
1330 | suiteb_flags = SSL_CERT_FLAG_SUITEB_192_LOS; |
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)) { | |
1343 | if (meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS) | |
1344 | SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST, | |
1345 | SSL_R_ONLY_DTLS_1_2_ALLOWED_IN_SUITEB_MODE); | |
1346 | else | |
1347 | SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST, | |
1348 | SSL_R_ONLY_TLS_1_2_ALLOWED_IN_SUITEB_MODE); | |
1349 | return 0; | |
1350 | } | |
10bf4fc2 | 1351 | # ifndef OPENSSL_NO_EC |
0f113f3e MC |
1352 | switch (suiteb_flags) { |
1353 | case SSL_CERT_FLAG_SUITEB_128_LOS: | |
1354 | if (suiteb_comb2) | |
1355 | *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384"; | |
1356 | else | |
1357 | *prule_str = | |
1358 | "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384"; | |
1359 | break; | |
1360 | case SSL_CERT_FLAG_SUITEB_128_LOS_ONLY: | |
1361 | *prule_str = "ECDHE-ECDSA-AES128-GCM-SHA256"; | |
1362 | break; | |
1363 | case SSL_CERT_FLAG_SUITEB_192_LOS: | |
1364 | *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384"; | |
1365 | break; | |
1366 | } | |
1367 | /* Set auto ECDH parameter determination */ | |
1368 | c->ecdh_tmp_auto = 1; | |
1369 | return 1; | |
1370 | # else | |
1371 | SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST, | |
1372 | SSL_R_ECDH_REQUIRED_FOR_SUITEB_MODE); | |
1373 | return 0; | |
1374 | # endif | |
1375 | } | |
14536c8c | 1376 | #endif |
2ea80354 | 1377 | |
0f113f3e MC |
1378 | STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method, STACK_OF(SSL_CIPHER) |
1379 | **cipher_list, STACK_OF(SSL_CIPHER) | |
1380 | **cipher_list_by_id, | |
1381 | const char *rule_str, CERT *c) | |
1382 | { | |
1383 | int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases; | |
1384 | unsigned long disabled_mkey, disabled_auth, disabled_enc, disabled_mac, | |
1385 | disabled_ssl; | |
1386 | STACK_OF(SSL_CIPHER) *cipherstack, *tmp_cipher_list; | |
1387 | const char *rule_p; | |
1388 | CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr; | |
1389 | const SSL_CIPHER **ca_list = NULL; | |
1390 | ||
1391 | /* | |
1392 | * Return with error if nothing to do. | |
1393 | */ | |
1394 | if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL) | |
1395 | return NULL; | |
14536c8c | 1396 | #ifndef OPENSSL_NO_EC |
0f113f3e MC |
1397 | if (!check_suiteb_cipher_list(ssl_method, c, &rule_str)) |
1398 | return NULL; | |
14536c8c | 1399 | #endif |
2ea80354 | 1400 | |
0f113f3e MC |
1401 | /* |
1402 | * To reduce the work to do we only want to process the compiled | |
1403 | * in algorithms, so we first get the mask of disabled ciphers. | |
1404 | */ | |
633d49c7 DSH |
1405 | |
1406 | disabled_mkey = disabled_mkey_mask; | |
1407 | disabled_auth = disabled_auth_mask; | |
1408 | disabled_enc = disabled_enc_mask; | |
1409 | disabled_mac = disabled_mac_mask; | |
1410 | disabled_ssl = 0; | |
0f113f3e MC |
1411 | |
1412 | /* | |
1413 | * Now we have to collect the available ciphers from the compiled | |
1414 | * in ciphers. We cannot get more than the number compiled in, so | |
1415 | * it is used for allocation. | |
1416 | */ | |
1417 | num_of_ciphers = ssl_method->num_ciphers(); | |
55a9a16f | 1418 | |
b4faea50 | 1419 | co_list = OPENSSL_malloc(sizeof(*co_list) * num_of_ciphers); |
0f113f3e MC |
1420 | if (co_list == NULL) { |
1421 | SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
1422 | return (NULL); /* Failure */ | |
1423 | } | |
1424 | ||
1425 | ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers, | |
1426 | disabled_mkey, disabled_auth, disabled_enc, | |
1427 | disabled_mac, disabled_ssl, co_list, &head, | |
1428 | &tail); | |
1429 | ||
1430 | /* Now arrange all ciphers by preference: */ | |
1431 | ||
1432 | /* | |
1433 | * Everything else being equal, prefer ephemeral ECDH over other key | |
1434 | * exchange mechanisms | |
1435 | */ | |
1436 | ssl_cipher_apply_rule(0, SSL_kECDHE, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, | |
1437 | &tail); | |
1438 | ssl_cipher_apply_rule(0, SSL_kECDHE, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, | |
1439 | &tail); | |
1440 | ||
1441 | /* AES is our preferred symmetric cipher */ | |
1442 | ssl_cipher_apply_rule(0, 0, 0, SSL_AES, 0, 0, 0, CIPHER_ADD, -1, &head, | |
1443 | &tail); | |
1444 | ||
1445 | /* Temporarily enable everything else for sorting */ | |
1446 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail); | |
1447 | ||
1448 | /* Low priority for MD5 */ | |
1449 | ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5, 0, 0, CIPHER_ORD, -1, &head, | |
1450 | &tail); | |
1451 | ||
1452 | /* | |
1453 | * Move anonymous ciphers to the end. Usually, these will remain | |
1454 | * disabled. (For applications that allow them, they aren't too bad, but | |
1455 | * we prefer authenticated ciphers.) | |
1456 | */ | |
1457 | ssl_cipher_apply_rule(0, 0, SSL_aNULL, 0, 0, 0, 0, CIPHER_ORD, -1, &head, | |
1458 | &tail); | |
1459 | ||
1460 | /* Move ciphers without forward secrecy to the end */ | |
1461 | ssl_cipher_apply_rule(0, 0, SSL_aECDH, 0, 0, 0, 0, CIPHER_ORD, -1, &head, | |
1462 | &tail); | |
1463 | /* | |
1464 | * ssl_cipher_apply_rule(0, 0, SSL_aDH, 0, 0, 0, 0, CIPHER_ORD, -1, | |
1465 | * &head, &tail); | |
1466 | */ | |
1467 | ssl_cipher_apply_rule(0, SSL_kRSA, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head, | |
1468 | &tail); | |
1469 | ssl_cipher_apply_rule(0, SSL_kPSK, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head, | |
1470 | &tail); | |
0f113f3e MC |
1471 | |
1472 | /* RC4 is sort-of broken -- move the the end */ | |
1473 | ssl_cipher_apply_rule(0, 0, 0, SSL_RC4, 0, 0, 0, CIPHER_ORD, -1, &head, | |
1474 | &tail); | |
1475 | ||
1476 | /* | |
1477 | * Now sort by symmetric encryption strength. The above ordering remains | |
1478 | * in force within each class | |
1479 | */ | |
1480 | if (!ssl_cipher_strength_sort(&head, &tail)) { | |
1481 | OPENSSL_free(co_list); | |
1482 | return NULL; | |
1483 | } | |
1484 | ||
1485 | /* Now disable everything (maintaining the ordering!) */ | |
1486 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail); | |
1487 | ||
1488 | /* | |
1489 | * We also need cipher aliases for selecting based on the rule_str. | |
1490 | * There might be two types of entries in the rule_str: 1) names | |
1491 | * of ciphers themselves 2) aliases for groups of ciphers. | |
1492 | * For 1) we need the available ciphers and for 2) the cipher | |
1493 | * groups of cipher_aliases added together in one list (otherwise | |
1494 | * we would be happy with just the cipher_aliases table). | |
1495 | */ | |
b6eb9827 | 1496 | num_of_group_aliases = OSSL_NELEM(cipher_aliases); |
0f113f3e | 1497 | num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1; |
b4faea50 | 1498 | ca_list = OPENSSL_malloc(sizeof(*ca_list) * num_of_alias_max); |
0f113f3e MC |
1499 | if (ca_list == NULL) { |
1500 | OPENSSL_free(co_list); | |
1501 | SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
1502 | return (NULL); /* Failure */ | |
1503 | } | |
1504 | ssl_cipher_collect_aliases(ca_list, num_of_group_aliases, | |
1505 | disabled_mkey, disabled_auth, disabled_enc, | |
1506 | disabled_mac, disabled_ssl, head); | |
1507 | ||
1508 | /* | |
1509 | * If the rule_string begins with DEFAULT, apply the default rule | |
1510 | * before using the (possibly available) additional rules. | |
1511 | */ | |
1512 | ok = 1; | |
1513 | rule_p = rule_str; | |
1514 | if (strncmp(rule_str, "DEFAULT", 7) == 0) { | |
1515 | ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST, | |
1516 | &head, &tail, ca_list, c); | |
1517 | rule_p += 7; | |
1518 | if (*rule_p == ':') | |
1519 | rule_p++; | |
1520 | } | |
1521 | ||
1522 | if (ok && (strlen(rule_p) > 0)) | |
1523 | ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list, c); | |
1524 | ||
b548a1f1 | 1525 | OPENSSL_free(ca_list); /* Not needed anymore */ |
0f113f3e MC |
1526 | |
1527 | if (!ok) { /* Rule processing failure */ | |
1528 | OPENSSL_free(co_list); | |
1529 | return (NULL); | |
1530 | } | |
1531 | ||
1532 | /* | |
1533 | * Allocate new "cipherstack" for the result, return with error | |
1534 | * if we cannot get one. | |
1535 | */ | |
1536 | if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL) { | |
1537 | OPENSSL_free(co_list); | |
1538 | return (NULL); | |
1539 | } | |
1540 | ||
1541 | /* | |
1542 | * The cipher selection for the list is done. The ciphers are added | |
1543 | * to the resulting precedence to the STACK_OF(SSL_CIPHER). | |
1544 | */ | |
1545 | for (curr = head; curr != NULL; curr = curr->next) { | |
1546 | if (curr->active | |
1547 | && (!FIPS_mode() || curr->cipher->algo_strength & SSL_FIPS)) { | |
1548 | if (!sk_SSL_CIPHER_push(cipherstack, curr->cipher)) { | |
1549 | OPENSSL_free(co_list); | |
1550 | sk_SSL_CIPHER_free(cipherstack); | |
1551 | return NULL; | |
1552 | } | |
d02b48c6 | 1553 | #ifdef CIPHER_DEBUG |
0f113f3e | 1554 | fprintf(stderr, "<%s>\n", curr->cipher->name); |
d02b48c6 | 1555 | #endif |
0f113f3e MC |
1556 | } |
1557 | } | |
1558 | OPENSSL_free(co_list); /* Not needed any longer */ | |
1559 | ||
1560 | tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack); | |
1561 | if (tmp_cipher_list == NULL) { | |
1562 | sk_SSL_CIPHER_free(cipherstack); | |
1563 | return NULL; | |
1564 | } | |
25aaa98a | 1565 | sk_SSL_CIPHER_free(*cipher_list); |
0f113f3e MC |
1566 | *cipher_list = cipherstack; |
1567 | if (*cipher_list_by_id != NULL) | |
1568 | sk_SSL_CIPHER_free(*cipher_list_by_id); | |
1569 | *cipher_list_by_id = tmp_cipher_list; | |
1570 | (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id, | |
1571 | ssl_cipher_ptr_id_cmp); | |
1572 | ||
1573 | sk_SSL_CIPHER_sort(*cipher_list_by_id); | |
1574 | return (cipherstack); | |
1575 | } | |
d02b48c6 | 1576 | |
7689ed34 | 1577 | char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len) |
0f113f3e MC |
1578 | { |
1579 | int is_export, pkl, kl; | |
1580 | const char *ver, *exp_str; | |
1581 | const char *kx, *au, *enc, *mac; | |
1582 | unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl; | |
0f113f3e MC |
1583 | static const char *format = |
1584 | "%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n"; | |
0f113f3e MC |
1585 | |
1586 | alg_mkey = cipher->algorithm_mkey; | |
1587 | alg_auth = cipher->algorithm_auth; | |
1588 | alg_enc = cipher->algorithm_enc; | |
1589 | alg_mac = cipher->algorithm_mac; | |
1590 | alg_ssl = cipher->algorithm_ssl; | |
1591 | ||
1592 | is_export = SSL_C_IS_EXPORT(cipher); | |
1593 | pkl = SSL_C_EXPORT_PKEYLENGTH(cipher); | |
1594 | kl = SSL_C_EXPORT_KEYLENGTH(cipher); | |
1595 | exp_str = is_export ? " export" : ""; | |
1596 | ||
1597 | if (alg_ssl & SSL_SSLV3) | |
1598 | ver = "SSLv3"; | |
1599 | else if (alg_ssl & SSL_TLSV1_2) | |
1600 | ver = "TLSv1.2"; | |
1601 | else | |
1602 | ver = "unknown"; | |
1603 | ||
1604 | switch (alg_mkey) { | |
1605 | case SSL_kRSA: | |
1606 | kx = is_export ? (pkl == 512 ? "RSA(512)" : "RSA(1024)") : "RSA"; | |
1607 | break; | |
1608 | case SSL_kDHr: | |
1609 | kx = "DH/RSA"; | |
1610 | break; | |
1611 | case SSL_kDHd: | |
1612 | kx = "DH/DSS"; | |
1613 | break; | |
0f113f3e MC |
1614 | case SSL_kDHE: |
1615 | kx = is_export ? (pkl == 512 ? "DH(512)" : "DH(1024)") : "DH"; | |
1616 | break; | |
1617 | case SSL_kECDHr: | |
1618 | kx = "ECDH/RSA"; | |
1619 | break; | |
1620 | case SSL_kECDHe: | |
1621 | kx = "ECDH/ECDSA"; | |
1622 | break; | |
1623 | case SSL_kECDHE: | |
1624 | kx = "ECDH"; | |
1625 | break; | |
1626 | case SSL_kPSK: | |
1627 | kx = "PSK"; | |
1628 | break; | |
8baac6a2 DSH |
1629 | case SSL_kRSAPSK: |
1630 | kx = "RSAPSK"; | |
1631 | break; | |
1632 | case SSL_kECDHEPSK: | |
1633 | kx = "ECDHEPSK"; | |
1634 | break; | |
1635 | case SSL_kDHEPSK: | |
1636 | kx = "DHEPSK"; | |
1637 | break; | |
0f113f3e MC |
1638 | case SSL_kSRP: |
1639 | kx = "SRP"; | |
1640 | break; | |
1641 | case SSL_kGOST: | |
1642 | kx = "GOST"; | |
1643 | break; | |
1644 | default: | |
1645 | kx = "unknown"; | |
1646 | } | |
1647 | ||
1648 | switch (alg_auth) { | |
1649 | case SSL_aRSA: | |
1650 | au = "RSA"; | |
1651 | break; | |
1652 | case SSL_aDSS: | |
1653 | au = "DSS"; | |
1654 | break; | |
1655 | case SSL_aDH: | |
1656 | au = "DH"; | |
1657 | break; | |
0f113f3e MC |
1658 | case SSL_aECDH: |
1659 | au = "ECDH"; | |
1660 | break; | |
1661 | case SSL_aNULL: | |
1662 | au = "None"; | |
1663 | break; | |
1664 | case SSL_aECDSA: | |
1665 | au = "ECDSA"; | |
1666 | break; | |
1667 | case SSL_aPSK: | |
1668 | au = "PSK"; | |
1669 | break; | |
1670 | case SSL_aSRP: | |
1671 | au = "SRP"; | |
1672 | break; | |
0f113f3e MC |
1673 | case SSL_aGOST01: |
1674 | au = "GOST01"; | |
1675 | break; | |
1676 | default: | |
1677 | au = "unknown"; | |
1678 | break; | |
1679 | } | |
1680 | ||
1681 | switch (alg_enc) { | |
1682 | case SSL_DES: | |
1683 | enc = (is_export && kl == 5) ? "DES(40)" : "DES(56)"; | |
1684 | break; | |
1685 | case SSL_3DES: | |
1686 | enc = "3DES(168)"; | |
1687 | break; | |
1688 | case SSL_RC4: | |
1689 | enc = is_export ? (kl == 5 ? "RC4(40)" : "RC4(56)") : "RC4(128)"; | |
1690 | break; | |
1691 | case SSL_RC2: | |
1692 | enc = is_export ? (kl == 5 ? "RC2(40)" : "RC2(56)") : "RC2(128)"; | |
1693 | break; | |
1694 | case SSL_IDEA: | |
1695 | enc = "IDEA(128)"; | |
1696 | break; | |
1697 | case SSL_eNULL: | |
1698 | enc = "None"; | |
1699 | break; | |
1700 | case SSL_AES128: | |
1701 | enc = "AES(128)"; | |
1702 | break; | |
1703 | case SSL_AES256: | |
1704 | enc = "AES(256)"; | |
1705 | break; | |
1706 | case SSL_AES128GCM: | |
1707 | enc = "AESGCM(128)"; | |
1708 | break; | |
1709 | case SSL_AES256GCM: | |
1710 | enc = "AESGCM(256)"; | |
1711 | break; | |
1712 | case SSL_CAMELLIA128: | |
1713 | enc = "Camellia(128)"; | |
1714 | break; | |
1715 | case SSL_CAMELLIA256: | |
1716 | enc = "Camellia(256)"; | |
1717 | break; | |
1718 | case SSL_SEED: | |
1719 | enc = "SEED(128)"; | |
1720 | break; | |
1721 | case SSL_eGOST2814789CNT: | |
1722 | enc = "GOST89(256)"; | |
1723 | break; | |
1724 | default: | |
1725 | enc = "unknown"; | |
1726 | break; | |
1727 | } | |
1728 | ||
1729 | switch (alg_mac) { | |
1730 | case SSL_MD5: | |
1731 | mac = "MD5"; | |
1732 | break; | |
1733 | case SSL_SHA1: | |
1734 | mac = "SHA1"; | |
1735 | break; | |
1736 | case SSL_SHA256: | |
1737 | mac = "SHA256"; | |
1738 | break; | |
1739 | case SSL_SHA384: | |
1740 | mac = "SHA384"; | |
1741 | break; | |
1742 | case SSL_AEAD: | |
1743 | mac = "AEAD"; | |
1744 | break; | |
1745 | case SSL_GOST89MAC: | |
1746 | mac = "GOST89"; | |
1747 | break; | |
1748 | case SSL_GOST94: | |
1749 | mac = "GOST94"; | |
1750 | break; | |
1751 | default: | |
1752 | mac = "unknown"; | |
1753 | break; | |
1754 | } | |
1755 | ||
1756 | if (buf == NULL) { | |
1757 | len = 128; | |
1758 | buf = OPENSSL_malloc(len); | |
1759 | if (buf == NULL) | |
1760 | return ("OPENSSL_malloc Error"); | |
1761 | } else if (len < 128) | |
1762 | return ("Buffer too small"); | |
d02b48c6 | 1763 | |
0f113f3e MC |
1764 | BIO_snprintf(buf, len, format, cipher->name, ver, kx, au, enc, mac, |
1765 | exp_str); | |
55a9a16f | 1766 | |
0f113f3e MC |
1767 | return (buf); |
1768 | } | |
d02b48c6 | 1769 | |
0821bcd4 | 1770 | char *SSL_CIPHER_get_version(const SSL_CIPHER *c) |
0f113f3e MC |
1771 | { |
1772 | int i; | |
1773 | ||
1774 | if (c == NULL) | |
1775 | return ("(NONE)"); | |
1776 | i = (int)(c->id >> 24L); | |
1777 | if (i == 3) | |
1778 | return ("TLSv1/SSLv3"); | |
1779 | else | |
1780 | return ("unknown"); | |
1781 | } | |
d02b48c6 RE |
1782 | |
1783 | /* return the actual cipher being used */ | |
0821bcd4 | 1784 | const char *SSL_CIPHER_get_name(const SSL_CIPHER *c) |
0f113f3e MC |
1785 | { |
1786 | if (c != NULL) | |
1787 | return (c->name); | |
1788 | return ("(NONE)"); | |
1789 | } | |
d02b48c6 | 1790 | |
657e60fa | 1791 | /* number of bits for symmetric cipher */ |
0821bcd4 | 1792 | int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits) |
0f113f3e MC |
1793 | { |
1794 | int ret = 0; | |
1795 | ||
1796 | if (c != NULL) { | |
1797 | if (alg_bits != NULL) | |
1798 | *alg_bits = c->alg_bits; | |
1799 | ret = c->strength_bits; | |
1800 | } | |
1801 | return (ret); | |
1802 | } | |
d02b48c6 | 1803 | |
08557cf2 | 1804 | unsigned long SSL_CIPHER_get_id(const SSL_CIPHER *c) |
0f113f3e MC |
1805 | { |
1806 | return c->id; | |
1807 | } | |
08557cf2 | 1808 | |
6b691a5c | 1809 | SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n) |
0f113f3e MC |
1810 | { |
1811 | SSL_COMP *ctmp; | |
1812 | int i, nn; | |
1813 | ||
1814 | if ((n == 0) || (sk == NULL)) | |
1815 | return (NULL); | |
1816 | nn = sk_SSL_COMP_num(sk); | |
1817 | for (i = 0; i < nn; i++) { | |
1818 | ctmp = sk_SSL_COMP_value(sk, i); | |
1819 | if (ctmp->id == n) | |
1820 | return (ctmp); | |
1821 | } | |
1822 | return (NULL); | |
1823 | } | |
413c4f45 | 1824 | |
09b6c2ef | 1825 | #ifdef OPENSSL_NO_COMP |
9a555706 | 1826 | STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void) |
0f113f3e MC |
1827 | { |
1828 | return NULL; | |
1829 | } | |
9a555706 RS |
1830 | STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP) |
1831 | *meths) | |
0f113f3e | 1832 | { |
9a555706 | 1833 | return meths; |
0f113f3e | 1834 | } |
9a555706 | 1835 | void SSL_COMP_free_compression_methods(void) |
0f113f3e | 1836 | { |
0f113f3e | 1837 | } |
9a555706 RS |
1838 | int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm) |
1839 | { | |
1840 | return 1; | |
1841 | } | |
1842 | ||
09b6c2ef | 1843 | #else |
6b691a5c | 1844 | STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void) |
0f113f3e MC |
1845 | { |
1846 | load_builtin_compressions(); | |
1847 | return (ssl_comp_methods); | |
1848 | } | |
1849 | ||
1850 | STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP) | |
1851 | *meths) | |
1852 | { | |
1853 | STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods; | |
1854 | ssl_comp_methods = meths; | |
1855 | return old_meths; | |
1856 | } | |
cbb67448 | 1857 | |
db7b5e0d | 1858 | static void cmeth_free(SSL_COMP *cm) |
0f113f3e MC |
1859 | { |
1860 | OPENSSL_free(cm); | |
1861 | } | |
db7b5e0d DSH |
1862 | |
1863 | void SSL_COMP_free_compression_methods(void) | |
0f113f3e MC |
1864 | { |
1865 | STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods; | |
1866 | ssl_comp_methods = NULL; | |
1867 | sk_SSL_COMP_pop_free(old_meths, cmeth_free); | |
1868 | } | |
db7b5e0d | 1869 | |
6b691a5c | 1870 | int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm) |
0f113f3e MC |
1871 | { |
1872 | SSL_COMP *comp; | |
413c4f45 | 1873 | |
9a555706 | 1874 | if (cm == NULL || COMP_get_type(cm) == NID_undef) |
0f113f3e | 1875 | return 1; |
9f495243 | 1876 | |
50e735f9 MC |
1877 | /*- |
1878 | * According to draft-ietf-tls-compression-04.txt, the | |
1879 | * compression number ranges should be the following: | |
1880 | * | |
1881 | * 0 to 63: methods defined by the IETF | |
1882 | * 64 to 192: external party methods assigned by IANA | |
1883 | * 193 to 255: reserved for private use | |
1884 | */ | |
0f113f3e MC |
1885 | if (id < 193 || id > 255) { |
1886 | SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, | |
1887 | SSL_R_COMPRESSION_ID_NOT_WITHIN_PRIVATE_RANGE); | |
1888 | return 0; | |
1889 | } | |
1890 | ||
1891 | MemCheck_off(); | |
b4faea50 | 1892 | comp = OPENSSL_malloc(sizeof(*comp)); |
0f113f3e MC |
1893 | if (comp == NULL) { |
1894 | MemCheck_on(); | |
1895 | SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, ERR_R_MALLOC_FAILURE); | |
1896 | return (1); | |
1897 | } | |
1898 | ||
1899 | comp->id = id; | |
1900 | comp->method = cm; | |
1901 | load_builtin_compressions(); | |
1902 | if (ssl_comp_methods && sk_SSL_COMP_find(ssl_comp_methods, comp) >= 0) { | |
1903 | OPENSSL_free(comp); | |
1904 | MemCheck_on(); | |
1905 | SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, | |
1906 | SSL_R_DUPLICATE_COMPRESSION_ID); | |
1907 | return (1); | |
1908 | } else if ((ssl_comp_methods == NULL) | |
1909 | || !sk_SSL_COMP_push(ssl_comp_methods, comp)) { | |
1910 | OPENSSL_free(comp); | |
1911 | MemCheck_on(); | |
1912 | SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, ERR_R_MALLOC_FAILURE); | |
1913 | return (1); | |
1914 | } else { | |
1915 | MemCheck_on(); | |
1916 | return (0); | |
1917 | } | |
1918 | } | |
9a555706 | 1919 | #endif |
377dcdba RL |
1920 | |
1921 | const char *SSL_COMP_get_name(const COMP_METHOD *comp) | |
0f113f3e | 1922 | { |
9a555706 RS |
1923 | #ifndef OPENSSL_NO_COMP |
1924 | return comp ? COMP_get_name(comp) : NULL; | |
1925 | #else | |
0f113f3e | 1926 | return NULL; |
09b6c2ef | 1927 | #endif |
9a555706 RS |
1928 | } |
1929 | ||
d47c01a3 DSH |
1930 | /* For a cipher return the index corresponding to the certificate type */ |
1931 | int ssl_cipher_get_cert_index(const SSL_CIPHER *c) | |
0f113f3e MC |
1932 | { |
1933 | unsigned long alg_k, alg_a; | |
1934 | ||
1935 | alg_k = c->algorithm_mkey; | |
1936 | alg_a = c->algorithm_auth; | |
1937 | ||
1938 | if (alg_k & (SSL_kECDHr | SSL_kECDHe)) { | |
1939 | /* | |
1940 | * we don't need to look at SSL_kECDHE since no certificate is needed | |
1941 | * for anon ECDH and for authenticated ECDHE, the check for the auth | |
1942 | * algorithm will set i correctly NOTE: For ECDH-RSA, we need an ECC | |
1943 | * not an RSA cert but for ECDHE-RSA we need an RSA cert. Placing the | |
1944 | * checks for SSL_kECDH before RSA checks ensures the correct cert is | |
1945 | * chosen. | |
1946 | */ | |
1947 | return SSL_PKEY_ECC; | |
1948 | } else if (alg_a & SSL_aECDSA) | |
1949 | return SSL_PKEY_ECC; | |
1950 | else if (alg_k & SSL_kDHr) | |
1951 | return SSL_PKEY_DH_RSA; | |
1952 | else if (alg_k & SSL_kDHd) | |
1953 | return SSL_PKEY_DH_DSA; | |
1954 | else if (alg_a & SSL_aDSS) | |
1955 | return SSL_PKEY_DSA_SIGN; | |
1956 | else if (alg_a & SSL_aRSA) | |
1957 | return SSL_PKEY_RSA_ENC; | |
0f113f3e MC |
1958 | else if (alg_a & SSL_aGOST01) |
1959 | return SSL_PKEY_GOST01; | |
1960 | return -1; | |
1961 | } | |
d47c01a3 | 1962 | |
94a209d8 | 1963 | const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr) |
0f113f3e MC |
1964 | { |
1965 | const SSL_CIPHER *c; | |
1966 | c = ssl->method->get_cipher_by_char(ptr); | |
1967 | if (c == NULL || c->valid == 0) | |
1968 | return NULL; | |
1969 | return c; | |
1970 | } | |
94a209d8 DSH |
1971 | |
1972 | const SSL_CIPHER *SSL_CIPHER_find(SSL *ssl, const unsigned char *ptr) | |
0f113f3e MC |
1973 | { |
1974 | return ssl->method->get_cipher_by_char(ptr); | |
1975 | } | |
98c9ce2f DSH |
1976 | |
1977 | int SSL_CIPHER_get_cipher_nid(const SSL_CIPHER *c) | |
1978 | { | |
1979 | int i; | |
1980 | if (c == NULL) | |
1981 | return -1; | |
1982 | i = ssl_cipher_info_lookup(ssl_cipher_table_cipher, c->algorithm_enc); | |
1983 | if (i == -1) | |
1984 | return -1; | |
1985 | return ssl_cipher_table_cipher[i].nid; | |
1986 | } | |
1987 | ||
1988 | int SSL_CIPHER_get_digest_nid(const SSL_CIPHER *c) | |
1989 | { | |
1990 | int i; | |
1991 | if (c == NULL) | |
1992 | return -1; | |
1993 | i = ssl_cipher_info_lookup(ssl_cipher_table_mac, c->algorithm_mac); | |
1994 | if (i == -1) | |
1995 | return -1; | |
1996 | return ssl_cipher_table_mac[i].nid; | |
1997 | } |