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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. | |
8 | * | |
9 | * This library is free for commercial and non-commercial use as long as | |
10 | * the following conditions are aheared to. The following conditions | |
11 | * apply to all code found in this distribution, be it the RC4, RSA, | |
12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
13 | * included with this distribution is covered by the same copyright terms | |
14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
15 | * | |
16 | * Copyright remains Eric Young's, and as such any Copyright notices in | |
17 | * the code are not to be removed. | |
18 | * If this package is used in a product, Eric Young should be given attribution | |
19 | * as the author of the parts of the library used. | |
20 | * This can be in the form of a textual message at program startup or | |
21 | * in documentation (online or textual) provided with the package. | |
22 | * | |
23 | * Redistribution and use in source and binary forms, with or without | |
24 | * modification, are permitted provided that the following conditions | |
25 | * are met: | |
26 | * 1. Redistributions of source code must retain the copyright | |
27 | * notice, this list of conditions and the following disclaimer. | |
28 | * 2. Redistributions in binary form must reproduce the above copyright | |
29 | * notice, this list of conditions and the following disclaimer in the | |
30 | * documentation and/or other materials provided with the distribution. | |
31 | * 3. All advertising materials mentioning features or use of this software | |
32 | * must display the following acknowledgement: | |
33 | * "This product includes cryptographic software written by | |
34 | * Eric Young (eay@cryptsoft.com)" | |
35 | * The word 'cryptographic' can be left out if the rouines from the library | |
36 | * being used are not cryptographic related :-). | |
37 | * 4. If you include any Windows specific code (or a derivative thereof) from | |
38 | * the apps directory (application code) you must include an acknowledgement: | |
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
40 | * | |
41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | |
42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
51 | * SUCH DAMAGE. | |
52 | * | |
53 | * The licence and distribution terms for any publically available version or | |
54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
55 | * copied and put under another distribution licence | |
56 | * [including the GNU Public Licence.] | |
57 | */ | |
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 | |
66 | * notice, this list of conditions and the following disclaimer. | |
67 | * | |
68 | * 2. Redistributions in binary form must reproduce the above copyright | |
69 | * notice, this list of conditions and the following disclaimer in | |
70 | * the documentation and/or other materials provided with the | |
71 | * distribution. | |
72 | * | |
73 | * 3. All advertising materials mentioning features or use of this | |
74 | * software must display the following acknowledgment: | |
75 | * "This product includes software developed by the OpenSSL Project | |
76 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | |
77 | * | |
78 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
79 | * endorse or promote products derived from this software without | |
80 | * prior written permission. For written permission, please contact | |
81 | * openssl-core@openssl.org. | |
82 | * | |
83 | * 5. Products derived from this software may not be called "OpenSSL" | |
84 | * nor may "OpenSSL" appear in their names without prior written | |
85 | * permission of the OpenSSL Project. | |
86 | * | |
87 | * 6. Redistributions of any form whatsoever must retain the following | |
88 | * acknowledgment: | |
89 | * "This product includes software developed by the OpenSSL Project | |
90 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | |
91 | * | |
92 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
93 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
94 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
95 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
96 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
97 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
98 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
99 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
100 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
101 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
102 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
103 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
104 | * ==================================================================== | |
105 | * | |
106 | * This product includes cryptographic software written by Eric Young | |
107 | * (eay@cryptsoft.com). This product includes software written by Tim | |
108 | * Hudson (tjh@cryptsoft.com). | |
109 | * | |
110 | */ | |
ea262260 BM |
111 | /* ==================================================================== |
112 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | |
113 | * ECC cipher suite support in OpenSSL originally developed by | |
114 | * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. | |
115 | */ | |
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 |
ec577822 | 146 | #include <openssl/comp.h> |
fceac0bc | 147 | #endif |
70531c14 | 148 | #ifndef OPENSSL_NO_ENGINE |
b948e2c5 | 149 | #include <openssl/engine.h> |
70531c14 | 150 | #endif |
d02b48c6 RE |
151 | #include "ssl_locl.h" |
152 | ||
153 | #define SSL_ENC_DES_IDX 0 | |
154 | #define SSL_ENC_3DES_IDX 1 | |
155 | #define SSL_ENC_RC4_IDX 2 | |
156 | #define SSL_ENC_RC2_IDX 3 | |
157 | #define SSL_ENC_IDEA_IDX 4 | |
89bbe14c BM |
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 | |
9981a51e | 163 | #define SSL_ENC_GOST89_IDX 10 |
96afc1cf BM |
164 | #define SSL_ENC_SEED_IDX 11 |
165 | #define SSL_ENC_NUM_IDX 12 | |
f3dea9a5 | 166 | |
d02b48c6 | 167 | |
e778802f | 168 | static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]={ |
9981a51e | 169 | NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL, |
d02b48c6 RE |
170 | }; |
171 | ||
7ba666fa RL |
172 | #define SSL_COMP_NULL_IDX 0 |
173 | #define SSL_COMP_ZLIB_IDX 1 | |
174 | #define SSL_COMP_NUM_IDX 2 | |
175 | ||
f73e07cf | 176 | static STACK_OF(SSL_COMP) *ssl_comp_methods=NULL; |
413c4f45 | 177 | |
d02b48c6 | 178 | #define SSL_MD_MD5_IDX 0 |
58964a49 | 179 | #define SSL_MD_SHA1_IDX 1 |
b948e2c5 DSH |
180 | #define SSL_MD_GOST94_IDX 2 |
181 | #define SSL_MD_GOST89MAC_IDX 3 | |
81025661 DSH |
182 | /*Constant SSL_MAX_DIGEST equal to size of digests array should be |
183 | * defined in the | |
184 | * ssl_locl.h */ | |
185 | #define SSL_MD_NUM_IDX SSL_MAX_DIGEST | |
e778802f | 186 | static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]={ |
b948e2c5 DSH |
187 | NULL,NULL,NULL,NULL |
188 | }; | |
189 | /* PKEY_TYPE for GOST89MAC is known in advance, but, because | |
190 | * implementation is engine-provided, we'll fill it only if | |
191 | * corresponding EVP_PKEY_METHOD is found | |
192 | */ | |
193 | static int ssl_mac_pkey_id[SSL_MD_NUM_IDX]={ | |
194 | EVP_PKEY_HMAC,EVP_PKEY_HMAC,EVP_PKEY_HMAC,NID_undef | |
195 | }; | |
196 | ||
197 | static int ssl_mac_secret_size[SSL_MD_NUM_IDX]={ | |
198 | 0,0,0,0 | |
d02b48c6 RE |
199 | }; |
200 | ||
81025661 DSH |
201 | static int ssl_handshake_digest_flag[SSL_MD_NUM_IDX]={ |
202 | SSL_HANDSHAKE_MAC_MD5,SSL_HANDSHAKE_MAC_SHA, | |
203 | SSL_HANDSHAKE_MAC_GOST94,0 | |
204 | }; | |
205 | ||
d02b48c6 RE |
206 | #define CIPHER_ADD 1 |
207 | #define CIPHER_KILL 2 | |
208 | #define CIPHER_DEL 3 | |
58964a49 | 209 | #define CIPHER_ORD 4 |
018e57c7 | 210 | #define CIPHER_SPECIAL 5 |
d02b48c6 | 211 | |
58964a49 RE |
212 | typedef struct cipher_order_st |
213 | { | |
babb3798 | 214 | const SSL_CIPHER *cipher; |
58964a49 RE |
215 | int active; |
216 | int dead; | |
217 | struct cipher_order_st *next,*prev; | |
218 | } CIPHER_ORDER; | |
219 | ||
018e57c7 | 220 | static const SSL_CIPHER cipher_aliases[]={ |
ed3ecd80 | 221 | /* "ALL" doesn't include eNULL (must be specifically enabled) */ |
52b8dad8 | 222 | {0,SSL_TXT_ALL,0, 0,0,~SSL_eNULL,0,0,0,0,0,0}, |
89bbe14c | 223 | /* "COMPLEMENTOFALL" */ |
52b8dad8 | 224 | {0,SSL_TXT_CMPALL,0, 0,0,SSL_eNULL,0,0,0,0,0,0}, |
89bbe14c BM |
225 | |
226 | /* "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in ALL!) */ | |
52b8dad8 | 227 | {0,SSL_TXT_CMPDEF,0, SSL_kEDH|SSL_kEECDH,SSL_aNULL,~SSL_eNULL,0,0,0,0,0,0}, |
89bbe14c | 228 | |
52b8dad8 BM |
229 | /* key exchange aliases |
230 | * (some of those using only a single bit here combine | |
231 | * multiple key exchange algs according to the RFCs, | |
89bbe14c | 232 | * e.g. kEDH combines DHE_DSS and DHE_RSA) */ |
52b8dad8 BM |
233 | {0,SSL_TXT_kRSA,0, SSL_kRSA, 0,0,0,0,0,0,0,0}, |
234 | ||
235 | {0,SSL_TXT_kDHr,0, SSL_kDHr, 0,0,0,0,0,0,0,0}, /* no such ciphersuites supported! */ | |
236 | {0,SSL_TXT_kDHd,0, SSL_kDHd, 0,0,0,0,0,0,0,0}, /* no such ciphersuites supported! */ | |
237 | {0,SSL_TXT_kDH,0, SSL_kDHr|SSL_kDHd,0,0,0,0,0,0,0,0}, /* no such ciphersuites supported! */ | |
238 | {0,SSL_TXT_kEDH,0, SSL_kEDH, 0,0,0,0,0,0,0,0}, | |
239 | {0,SSL_TXT_DH,0, SSL_kDHr|SSL_kDHd|SSL_kEDH,0,0,0,0,0,0,0,0}, | |
240 | ||
241 | {0,SSL_TXT_kKRB5,0, SSL_kKRB5, 0,0,0,0,0,0,0,0}, | |
242 | ||
243 | {0,SSL_TXT_kECDHr,0, SSL_kECDHr,0,0,0,0,0,0,0,0}, | |
244 | {0,SSL_TXT_kECDHe,0, SSL_kECDHe,0,0,0,0,0,0,0,0}, | |
245 | {0,SSL_TXT_kECDH,0, SSL_kECDHr|SSL_kECDHe,0,0,0,0,0,0,0,0}, | |
246 | {0,SSL_TXT_kEECDH,0, SSL_kEECDH,0,0,0,0,0,0,0,0}, | |
247 | {0,SSL_TXT_ECDH,0, SSL_kECDHr|SSL_kECDHe|SSL_kEECDH,0,0,0,0,0,0,0,0}, | |
248 | ||
249 | {0,SSL_TXT_kPSK,0, SSL_kPSK, 0,0,0,0,0,0,0,0}, | |
0e1dba93 | 250 | {0,SSL_TXT_kGOST,0, SSL_kGOST,0,0,0,0,0,0,0,0}, |
52b8dad8 BM |
251 | |
252 | /* server authentication aliases */ | |
253 | {0,SSL_TXT_aRSA,0, 0,SSL_aRSA, 0,0,0,0,0,0,0}, | |
254 | {0,SSL_TXT_aDSS,0, 0,SSL_aDSS, 0,0,0,0,0,0,0}, | |
255 | {0,SSL_TXT_DSS,0, 0,SSL_aDSS, 0,0,0,0,0,0,0}, | |
256 | {0,SSL_TXT_aKRB5,0, 0,SSL_aKRB5, 0,0,0,0,0,0,0}, | |
257 | {0,SSL_TXT_aNULL,0, 0,SSL_aNULL, 0,0,0,0,0,0,0}, | |
258 | {0,SSL_TXT_aDH,0, 0,SSL_aDH, 0,0,0,0,0,0,0}, /* no such ciphersuites supported! */ | |
259 | {0,SSL_TXT_aECDH,0, 0,SSL_aECDH, 0,0,0,0,0,0,0}, | |
260 | {0,SSL_TXT_aECDSA,0, 0,SSL_aECDSA,0,0,0,0,0,0,0}, | |
261 | {0,SSL_TXT_ECDSA,0, 0,SSL_aECDSA, 0,0,0,0,0,0,0}, | |
262 | {0,SSL_TXT_aPSK,0, 0,SSL_aPSK, 0,0,0,0,0,0,0}, | |
0e1dba93 DSH |
263 | {0,SSL_TXT_aGOST94,0,0,SSL_aGOST94,0,0,0,0,0,0,0}, |
264 | {0,SSL_TXT_aGOST01,0,0,SSL_aGOST01,0,0,0,0,0,0,0}, | |
265 | {0,SSL_TXT_aGOST,0,0,SSL_aGOST94|SSL_aGOST01,0,0,0,0,0,0,0}, | |
52b8dad8 BM |
266 | |
267 | /* aliases combining key exchange and server authentication */ | |
268 | {0,SSL_TXT_EDH,0, SSL_kEDH,~SSL_aNULL,0,0,0,0,0,0,0}, | |
269 | {0,SSL_TXT_EECDH,0, SSL_kEECDH,~SSL_aNULL,0,0,0,0,0,0,0}, | |
270 | {0,SSL_TXT_NULL,0, 0,0,SSL_eNULL, 0,0,0,0,0,0}, | |
271 | {0,SSL_TXT_KRB5,0, SSL_kKRB5,SSL_aKRB5,0,0,0,0,0,0,0}, | |
272 | {0,SSL_TXT_RSA,0, SSL_kRSA,SSL_aRSA,0,0,0,0,0,0,0}, | |
273 | {0,SSL_TXT_ADH,0, SSL_kEDH,SSL_aNULL,0,0,0,0,0,0,0}, | |
274 | {0,SSL_TXT_AECDH,0, SSL_kEECDH,SSL_aNULL,0,0,0,0,0,0,0}, | |
275 | {0,SSL_TXT_PSK,0, SSL_kPSK,SSL_aPSK,0,0,0,0,0,0,0}, | |
276 | ||
277 | ||
278 | /* symmetric encryption aliases */ | |
279 | {0,SSL_TXT_DES,0, 0,0,SSL_DES, 0,0,0,0,0,0}, | |
280 | {0,SSL_TXT_3DES,0, 0,0,SSL_3DES, 0,0,0,0,0,0}, | |
281 | {0,SSL_TXT_RC4,0, 0,0,SSL_RC4, 0,0,0,0,0,0}, | |
282 | {0,SSL_TXT_RC2,0, 0,0,SSL_RC2, 0,0,0,0,0,0}, | |
283 | {0,SSL_TXT_IDEA,0, 0,0,SSL_IDEA, 0,0,0,0,0,0}, | |
96afc1cf | 284 | {0,SSL_TXT_SEED,0, 0,0,SSL_SEED, 0,0,0,0,0,0}, |
52b8dad8 BM |
285 | {0,SSL_TXT_eNULL,0, 0,0,SSL_eNULL, 0,0,0,0,0,0}, |
286 | {0,SSL_TXT_AES128,0, 0,0,SSL_AES128,0,0,0,0,0,0}, | |
287 | {0,SSL_TXT_AES256,0, 0,0,SSL_AES256,0,0,0,0,0,0}, | |
288 | {0,SSL_TXT_AES,0, 0,0,SSL_AES128|SSL_AES256,0,0,0,0,0,0}, | |
289 | {0,SSL_TXT_CAMELLIA128,0,0,0,SSL_CAMELLIA128,0,0,0,0,0,0}, | |
290 | {0,SSL_TXT_CAMELLIA256,0,0,0,SSL_CAMELLIA256,0,0,0,0,0,0}, | |
291 | {0,SSL_TXT_CAMELLIA ,0,0,0,SSL_CAMELLIA128|SSL_CAMELLIA256,0,0,0,0,0,0}, | |
292 | ||
293 | /* MAC aliases */ | |
294 | {0,SSL_TXT_MD5,0, 0,0,0,SSL_MD5, 0,0,0,0,0}, | |
295 | {0,SSL_TXT_SHA1,0, 0,0,0,SSL_SHA1, 0,0,0,0,0}, | |
296 | {0,SSL_TXT_SHA,0, 0,0,0,SSL_SHA1, 0,0,0,0,0}, | |
b948e2c5 DSH |
297 | {0,SSL_TXT_GOST94,0, 0,0,0,SSL_GOST94, 0,0,0,0,0}, |
298 | {0,SSL_TXT_GOST89MAC,0, 0,0,0,SSL_GOST89MAC, 0,0,0,0,0}, | |
52b8dad8 BM |
299 | |
300 | /* protocol version aliases */ | |
301 | {0,SSL_TXT_SSLV2,0, 0,0,0,0,SSL_SSLV2, 0,0,0,0}, | |
302 | {0,SSL_TXT_SSLV3,0, 0,0,0,0,SSL_SSLV3, 0,0,0,0}, | |
303 | {0,SSL_TXT_TLSV1,0, 0,0,0,0,SSL_TLSV1, 0,0,0,0}, | |
304 | ||
305 | /* export flag */ | |
306 | {0,SSL_TXT_EXP,0, 0,0,0,0,0,SSL_EXPORT,0,0,0}, | |
307 | {0,SSL_TXT_EXPORT,0, 0,0,0,0,0,SSL_EXPORT,0,0,0}, | |
308 | ||
309 | /* strength classes */ | |
310 | {0,SSL_TXT_EXP40,0, 0,0,0,0,0,SSL_EXP40, 0,0,0}, | |
311 | {0,SSL_TXT_EXP56,0, 0,0,0,0,0,SSL_EXP56, 0,0,0}, | |
312 | {0,SSL_TXT_LOW,0, 0,0,0,0,0,SSL_LOW, 0,0,0}, | |
313 | {0,SSL_TXT_MEDIUM,0, 0,0,0,0,0,SSL_MEDIUM,0,0,0}, | |
314 | {0,SSL_TXT_HIGH,0, 0,0,0,0,0,SSL_HIGH, 0,0,0}, | |
3ad74edc DSH |
315 | /* FIPS 140-2 approved ciphersuite */ |
316 | {0,SSL_TXT_FIPS,0, 0,0,~SSL_eNULL,0,0,SSL_FIPS, 0,0,0}, | |
d02b48c6 | 317 | }; |
81025661 DSH |
318 | /* Search for public key algorithm with given name and |
319 | * return its pkey_id if it is available. Otherwise return 0 | |
320 | */ | |
70531c14 DSH |
321 | #ifdef OPENSSL_NO_ENGINE |
322 | ||
81025661 DSH |
323 | static int get_optional_pkey_id(const char *pkey_name) |
324 | { | |
325 | const EVP_PKEY_ASN1_METHOD *ameth; | |
81025661 | 326 | int pkey_id=0; |
70531c14 | 327 | ameth = EVP_PKEY_asn1_find_str(NULL,pkey_name,-1); |
81025661 DSH |
328 | if (ameth) |
329 | { | |
330 | EVP_PKEY_asn1_get0_info(&pkey_id, NULL,NULL,NULL,NULL,ameth); | |
331 | } | |
81025661 DSH |
332 | return pkey_id; |
333 | } | |
d02b48c6 | 334 | |
70531c14 DSH |
335 | #else |
336 | ||
337 | static int get_optional_pkey_id(const char *pkey_name) | |
338 | { | |
339 | const EVP_PKEY_ASN1_METHOD *ameth; | |
340 | ENGINE *tmpeng = NULL; | |
341 | int pkey_id=0; | |
342 | ameth = EVP_PKEY_asn1_find_str(&tmpeng,pkey_name,-1); | |
343 | if (ameth) | |
344 | { | |
345 | EVP_PKEY_asn1_get0_info(&pkey_id, NULL,NULL,NULL,NULL,ameth); | |
346 | } | |
347 | if (tmpeng) ENGINE_finish(tmpeng); | |
348 | return pkey_id; | |
349 | } | |
350 | ||
351 | #endif | |
352 | ||
7f3c9036 | 353 | void ssl_load_ciphers(void) |
d02b48c6 | 354 | { |
d02b48c6 RE |
355 | ssl_cipher_methods[SSL_ENC_DES_IDX]= |
356 | EVP_get_cipherbyname(SN_des_cbc); | |
357 | ssl_cipher_methods[SSL_ENC_3DES_IDX]= | |
358 | EVP_get_cipherbyname(SN_des_ede3_cbc); | |
359 | ssl_cipher_methods[SSL_ENC_RC4_IDX]= | |
360 | EVP_get_cipherbyname(SN_rc4); | |
361 | ssl_cipher_methods[SSL_ENC_RC2_IDX]= | |
362 | EVP_get_cipherbyname(SN_rc2_cbc); | |
5fdf0666 | 363 | #ifndef OPENSSL_NO_IDEA |
d02b48c6 RE |
364 | ssl_cipher_methods[SSL_ENC_IDEA_IDX]= |
365 | EVP_get_cipherbyname(SN_idea_cbc); | |
5fdf0666 RL |
366 | #else |
367 | ssl_cipher_methods[SSL_ENC_IDEA_IDX]= NULL; | |
368 | #endif | |
deb2c1a1 DSH |
369 | ssl_cipher_methods[SSL_ENC_AES128_IDX]= |
370 | EVP_get_cipherbyname(SN_aes_128_cbc); | |
371 | ssl_cipher_methods[SSL_ENC_AES256_IDX]= | |
372 | EVP_get_cipherbyname(SN_aes_256_cbc); | |
f3dea9a5 BM |
373 | ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX]= |
374 | EVP_get_cipherbyname(SN_camellia_128_cbc); | |
375 | ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX]= | |
376 | EVP_get_cipherbyname(SN_camellia_256_cbc); | |
9981a51e | 377 | ssl_cipher_methods[SSL_ENC_GOST89_IDX]= |
96afc1cf BM |
378 | EVP_get_cipherbyname(SN_gost89_cnt); |
379 | ssl_cipher_methods[SSL_ENC_SEED_IDX]= | |
380 | EVP_get_cipherbyname(SN_seed_cbc); | |
d02b48c6 RE |
381 | |
382 | ssl_digest_methods[SSL_MD_MD5_IDX]= | |
383 | EVP_get_digestbyname(SN_md5); | |
b948e2c5 DSH |
384 | ssl_mac_secret_size[SSL_MD_MD5_IDX]= |
385 | EVP_MD_size(ssl_digest_methods[SSL_MD_MD5_IDX]); | |
0eab41fb | 386 | OPENSSL_assert(ssl_mac_secret_size[SSL_MD_MD5_IDX] >= 0); |
d02b48c6 RE |
387 | ssl_digest_methods[SSL_MD_SHA1_IDX]= |
388 | EVP_get_digestbyname(SN_sha1); | |
b948e2c5 DSH |
389 | ssl_mac_secret_size[SSL_MD_SHA1_IDX]= |
390 | EVP_MD_size(ssl_digest_methods[SSL_MD_SHA1_IDX]); | |
0eab41fb | 391 | OPENSSL_assert(ssl_mac_secret_size[SSL_MD_SHA1_IDX] >= 0); |
b948e2c5 DSH |
392 | ssl_digest_methods[SSL_MD_GOST94_IDX]= |
393 | EVP_get_digestbyname(SN_id_GostR3411_94); | |
394 | if (ssl_digest_methods[SSL_MD_GOST94_IDX]) | |
395 | { | |
396 | ssl_mac_secret_size[SSL_MD_GOST94_IDX]= | |
397 | EVP_MD_size(ssl_digest_methods[SSL_MD_GOST94_IDX]); | |
0eab41fb | 398 | OPENSSL_assert(ssl_mac_secret_size[SSL_MD_GOST94_IDX] >= 0); |
b948e2c5 DSH |
399 | } |
400 | ssl_digest_methods[SSL_MD_GOST89MAC_IDX]= | |
401 | EVP_get_digestbyname(SN_id_Gost28147_89_MAC); | |
81025661 DSH |
402 | ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX] = get_optional_pkey_id("gost-mac"); |
403 | if (ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]) { | |
b948e2c5 | 404 | ssl_mac_secret_size[SSL_MD_GOST89MAC_IDX]=32; |
81025661 | 405 | } |
09b6c2ef | 406 | |
b948e2c5 | 407 | } |
09b6c2ef DSH |
408 | #ifndef OPENSSL_NO_COMP |
409 | ||
7ba666fa RL |
410 | static int sk_comp_cmp(const SSL_COMP * const *a, |
411 | const SSL_COMP * const *b) | |
412 | { | |
413 | return((*a)->id-(*b)->id); | |
414 | } | |
415 | ||
416 | static void load_builtin_compressions(void) | |
417 | { | |
675f605d | 418 | int got_write_lock = 0; |
f70ddce7 | 419 | |
675f605d | 420 | CRYPTO_r_lock(CRYPTO_LOCK_SSL); |
7ba666fa RL |
421 | if (ssl_comp_methods == NULL) |
422 | { | |
675f605d BM |
423 | CRYPTO_r_unlock(CRYPTO_LOCK_SSL); |
424 | CRYPTO_w_lock(CRYPTO_LOCK_SSL); | |
425 | got_write_lock = 1; | |
426 | ||
427 | if (ssl_comp_methods == NULL) | |
7ba666fa | 428 | { |
675f605d BM |
429 | SSL_COMP *comp = NULL; |
430 | ||
431 | MemCheck_off(); | |
432 | ssl_comp_methods=sk_SSL_COMP_new(sk_comp_cmp); | |
433 | if (ssl_comp_methods != NULL) | |
7ba666fa | 434 | { |
675f605d BM |
435 | comp=(SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP)); |
436 | if (comp != NULL) | |
7ba666fa | 437 | { |
675f605d BM |
438 | comp->method=COMP_zlib(); |
439 | if (comp->method | |
440 | && comp->method->type == NID_undef) | |
441 | OPENSSL_free(comp); | |
442 | else | |
443 | { | |
444 | comp->id=SSL_COMP_ZLIB_IDX; | |
445 | comp->name=comp->method->name; | |
446 | sk_SSL_COMP_push(ssl_comp_methods,comp); | |
447 | } | |
7ba666fa RL |
448 | } |
449 | } | |
675f605d | 450 | MemCheck_on(); |
7ba666fa | 451 | } |
7ba666fa | 452 | } |
675f605d BM |
453 | |
454 | if (got_write_lock) | |
455 | CRYPTO_w_unlock(CRYPTO_LOCK_SSL); | |
456 | else | |
457 | CRYPTO_r_unlock(CRYPTO_LOCK_SSL); | |
7ba666fa | 458 | } |
09b6c2ef | 459 | #endif |
7ba666fa | 460 | |
0821bcd4 | 461 | int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc, |
b948e2c5 | 462 | const EVP_MD **md, int *mac_pkey_type, int *mac_secret_size,SSL_COMP **comp) |
d02b48c6 RE |
463 | { |
464 | int i; | |
babb3798 | 465 | const SSL_CIPHER *c; |
d02b48c6 | 466 | |
413c4f45 | 467 | c=s->cipher; |
d02b48c6 | 468 | if (c == NULL) return(0); |
413c4f45 MC |
469 | if (comp != NULL) |
470 | { | |
471 | SSL_COMP ctmp; | |
09b6c2ef | 472 | #ifndef OPENSSL_NO_COMP |
7ba666fa | 473 | load_builtin_compressions(); |
09b6c2ef | 474 | #endif |
413c4f45 | 475 | |
7ba666fa RL |
476 | *comp=NULL; |
477 | ctmp.id=s->compress_meth; | |
478 | if (ssl_comp_methods != NULL) | |
479 | { | |
f73e07cf | 480 | i=sk_SSL_COMP_find(ssl_comp_methods,&ctmp); |
413c4f45 | 481 | if (i >= 0) |
f73e07cf | 482 | *comp=sk_SSL_COMP_value(ssl_comp_methods,i); |
413c4f45 MC |
483 | else |
484 | *comp=NULL; | |
485 | } | |
486 | } | |
487 | ||
488 | if ((enc == NULL) || (md == NULL)) return(0); | |
d02b48c6 | 489 | |
52b8dad8 | 490 | switch (c->algorithm_enc) |
d02b48c6 RE |
491 | { |
492 | case SSL_DES: | |
493 | i=SSL_ENC_DES_IDX; | |
494 | break; | |
495 | case SSL_3DES: | |
496 | i=SSL_ENC_3DES_IDX; | |
497 | break; | |
498 | case SSL_RC4: | |
499 | i=SSL_ENC_RC4_IDX; | |
500 | break; | |
501 | case SSL_RC2: | |
502 | i=SSL_ENC_RC2_IDX; | |
503 | break; | |
504 | case SSL_IDEA: | |
505 | i=SSL_ENC_IDEA_IDX; | |
506 | break; | |
507 | case SSL_eNULL: | |
508 | i=SSL_ENC_NULL_IDX; | |
509 | break; | |
52b8dad8 BM |
510 | case SSL_AES128: |
511 | i=SSL_ENC_AES128_IDX; | |
259810e0 | 512 | break; |
52b8dad8 BM |
513 | case SSL_AES256: |
514 | i=SSL_ENC_AES256_IDX; | |
515 | break; | |
516 | case SSL_CAMELLIA128: | |
517 | i=SSL_ENC_CAMELLIA128_IDX; | |
518 | break; | |
519 | case SSL_CAMELLIA256: | |
520 | i=SSL_ENC_CAMELLIA256_IDX; | |
f3dea9a5 | 521 | break; |
9981a51e DSH |
522 | case SSL_eGOST2814789CNT: |
523 | i=SSL_ENC_GOST89_IDX; | |
524 | break; | |
96afc1cf BM |
525 | case SSL_SEED: |
526 | i=SSL_ENC_SEED_IDX; | |
527 | break; | |
d02b48c6 RE |
528 | default: |
529 | i= -1; | |
530 | break; | |
531 | } | |
532 | ||
533 | if ((i < 0) || (i > SSL_ENC_NUM_IDX)) | |
534 | *enc=NULL; | |
535 | else | |
536 | { | |
537 | if (i == SSL_ENC_NULL_IDX) | |
538 | *enc=EVP_enc_null(); | |
539 | else | |
540 | *enc=ssl_cipher_methods[i]; | |
541 | } | |
542 | ||
52b8dad8 | 543 | switch (c->algorithm_mac) |
d02b48c6 RE |
544 | { |
545 | case SSL_MD5: | |
546 | i=SSL_MD_MD5_IDX; | |
547 | break; | |
d02b48c6 RE |
548 | case SSL_SHA1: |
549 | i=SSL_MD_SHA1_IDX; | |
550 | break; | |
b948e2c5 DSH |
551 | case SSL_GOST94: |
552 | i = SSL_MD_GOST94_IDX; | |
553 | break; | |
554 | case SSL_GOST89MAC: | |
555 | i = SSL_MD_GOST89MAC_IDX; | |
556 | break; | |
d02b48c6 RE |
557 | default: |
558 | i= -1; | |
559 | break; | |
560 | } | |
561 | if ((i < 0) || (i > SSL_MD_NUM_IDX)) | |
b948e2c5 DSH |
562 | { |
563 | *md=NULL; | |
564 | if (mac_pkey_type!=NULL) *mac_pkey_type = NID_undef; | |
565 | if (mac_secret_size!=NULL) *mac_secret_size = 0; | |
566 | ||
567 | } | |
d02b48c6 | 568 | else |
b948e2c5 | 569 | { |
d02b48c6 | 570 | *md=ssl_digest_methods[i]; |
b948e2c5 DSH |
571 | if (mac_pkey_type!=NULL) *mac_pkey_type = ssl_mac_pkey_id[i]; |
572 | if (mac_secret_size!=NULL) *mac_secret_size = ssl_mac_secret_size[i]; | |
573 | } | |
d02b48c6 | 574 | |
b948e2c5 | 575 | if ((*enc != NULL) && (*md != NULL) && (!mac_pkey_type||*mac_pkey_type != NID_undef)) |
d02b48c6 RE |
576 | return(1); |
577 | else | |
578 | return(0); | |
579 | } | |
580 | ||
81025661 DSH |
581 | int ssl_get_handshake_digest(int idx, long *mask, const EVP_MD **md) |
582 | { | |
583 | if (idx <0||idx>=SSL_MD_NUM_IDX) | |
584 | { | |
585 | return 0; | |
586 | } | |
587 | if (ssl_handshake_digest_flag[idx]==0) return 0; | |
588 | *mask = ssl_handshake_digest_flag[idx]; | |
589 | *md = ssl_digest_methods[idx]; | |
590 | return 1; | |
591 | } | |
592 | ||
58964a49 RE |
593 | #define ITEM_SEP(a) \ |
594 | (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ',')) | |
595 | ||
6b691a5c UM |
596 | static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr, |
597 | CIPHER_ORDER **tail) | |
58964a49 RE |
598 | { |
599 | if (curr == *tail) return; | |
600 | if (curr == *head) | |
601 | *head=curr->next; | |
602 | if (curr->prev != NULL) | |
603 | curr->prev->next=curr->next; | |
fd5bc65c | 604 | if (curr->next != NULL) |
58964a49 RE |
605 | curr->next->prev=curr->prev; |
606 | (*tail)->next=curr; | |
607 | curr->prev= *tail; | |
608 | curr->next=NULL; | |
609 | *tail=curr; | |
610 | } | |
611 | ||
fd5bc65c BM |
612 | static void ll_append_head(CIPHER_ORDER **head, CIPHER_ORDER *curr, |
613 | CIPHER_ORDER **tail) | |
614 | { | |
615 | if (curr == *head) return; | |
616 | if (curr == *tail) | |
617 | *tail=curr->prev; | |
618 | if (curr->next != NULL) | |
619 | curr->next->prev=curr->prev; | |
620 | if (curr->prev != NULL) | |
621 | curr->prev->next=curr->next; | |
622 | (*head)->prev=curr; | |
623 | curr->next= *head; | |
624 | curr->prev=NULL; | |
625 | *head=curr; | |
626 | } | |
627 | ||
52b8dad8 | 628 | static void ssl_cipher_get_disabled(unsigned long *mkey, unsigned long *auth, unsigned long *enc, unsigned long *mac, unsigned long *ssl) |
d02b48c6 | 629 | { |
52b8dad8 BM |
630 | *mkey = 0; |
631 | *auth = 0; | |
632 | *enc = 0; | |
633 | *mac = 0; | |
634 | *ssl = 0; | |
d02b48c6 | 635 | |
bc36ee62 | 636 | #ifdef OPENSSL_NO_RSA |
52b8dad8 BM |
637 | *mkey |= SSL_kRSA; |
638 | *auth |= SSL_aRSA; | |
d02b48c6 | 639 | #endif |
bc36ee62 | 640 | #ifdef OPENSSL_NO_DSA |
52b8dad8 | 641 | *auth |= SSL_aDSS; |
d02b48c6 | 642 | #endif |
52b8dad8 BM |
643 | *mkey |= SSL_kDHr|SSL_kDHd; /* no such ciphersuites supported! */ |
644 | *auth |= SSL_aDH; | |
bc36ee62 | 645 | #ifdef OPENSSL_NO_DH |
52b8dad8 BM |
646 | *mkey |= SSL_kDHr|SSL_kDHd|SSL_kEDH; |
647 | *auth |= SSL_aDH; | |
d02b48c6 | 648 | #endif |
bc36ee62 | 649 | #ifdef OPENSSL_NO_KRB5 |
52b8dad8 BM |
650 | *mkey |= SSL_kKRB5; |
651 | *auth |= SSL_aKRB5; | |
f9b3bff6 | 652 | #endif |
89bbe14c | 653 | #ifdef OPENSSL_NO_ECDSA |
52b8dad8 | 654 | *auth |= SSL_aECDSA; |
89bbe14c | 655 | #endif |
ea262260 | 656 | #ifdef OPENSSL_NO_ECDH |
52b8dad8 BM |
657 | *mkey |= SSL_kECDHe|SSL_kECDHr; |
658 | *auth |= SSL_aECDH; | |
ea262260 | 659 | #endif |
ddac1974 | 660 | #ifdef OPENSSL_NO_PSK |
52b8dad8 BM |
661 | *mkey |= SSL_kPSK; |
662 | *auth |= SSL_aPSK; | |
ddac1974 | 663 | #endif |
81025661 DSH |
664 | /* Check for presence of GOST 34.10 algorithms, and if they |
665 | * do not present, disable appropriate auth and key exchange */ | |
666 | if (!get_optional_pkey_id("gost94")) { | |
667 | *auth |= SSL_aGOST94; | |
668 | } | |
669 | if (!get_optional_pkey_id("gost2001")) { | |
670 | *auth |= SSL_aGOST01; | |
671 | } | |
672 | /* Disable GOST key exchange if no GOST signature algs are available * */ | |
673 | if ((*auth & (SSL_aGOST94|SSL_aGOST01)) == (SSL_aGOST94|SSL_aGOST01)) { | |
674 | *mkey |= SSL_kGOST; | |
675 | } | |
988788f6 | 676 | #ifdef SSL_FORBID_ENULL |
52b8dad8 | 677 | *enc |= SSL_eNULL; |
d02b48c6 | 678 | #endif |
81025661 DSH |
679 | |
680 | ||
d02b48c6 | 681 | |
52b8dad8 BM |
682 | *enc |= (ssl_cipher_methods[SSL_ENC_DES_IDX ] == NULL) ? SSL_DES :0; |
683 | *enc |= (ssl_cipher_methods[SSL_ENC_3DES_IDX] == NULL) ? SSL_3DES:0; | |
684 | *enc |= (ssl_cipher_methods[SSL_ENC_RC4_IDX ] == NULL) ? SSL_RC4 :0; | |
685 | *enc |= (ssl_cipher_methods[SSL_ENC_RC2_IDX ] == NULL) ? SSL_RC2 :0; | |
686 | *enc |= (ssl_cipher_methods[SSL_ENC_IDEA_IDX] == NULL) ? SSL_IDEA:0; | |
687 | *enc |= (ssl_cipher_methods[SSL_ENC_AES128_IDX] == NULL) ? SSL_AES128:0; | |
688 | *enc |= (ssl_cipher_methods[SSL_ENC_AES256_IDX] == NULL) ? SSL_AES256:0; | |
689 | *enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX] == NULL) ? SSL_CAMELLIA128:0; | |
690 | *enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX] == NULL) ? SSL_CAMELLIA256:0; | |
9981a51e | 691 | *enc |= (ssl_cipher_methods[SSL_ENC_GOST89_IDX] == NULL) ? SSL_eGOST2814789CNT:0; |
96afc1cf | 692 | *enc |= (ssl_cipher_methods[SSL_ENC_SEED_IDX] == NULL) ? SSL_SEED:0; |
52b8dad8 BM |
693 | |
694 | *mac |= (ssl_digest_methods[SSL_MD_MD5_IDX ] == NULL) ? SSL_MD5 :0; | |
695 | *mac |= (ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL) ? SSL_SHA1:0; | |
b948e2c5 DSH |
696 | *mac |= (ssl_digest_methods[SSL_MD_GOST94_IDX] == NULL) ? SSL_GOST94:0; |
697 | *mac |= (ssl_digest_methods[SSL_MD_GOST89MAC_IDX] == NULL || ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]==NID_undef)? SSL_GOST89MAC:0; | |
698 | ||
018e57c7 DSH |
699 | } |
700 | ||
701 | static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method, | |
52b8dad8 BM |
702 | int num_of_ciphers, |
703 | unsigned long disabled_mkey, unsigned long disabled_auth, | |
704 | unsigned long disabled_enc, unsigned long disabled_mac, | |
705 | unsigned long disabled_ssl, | |
706 | CIPHER_ORDER *co_list, | |
707 | CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p) | |
018e57c7 | 708 | { |
3822740c | 709 | int i, co_list_num; |
babb3798 | 710 | const SSL_CIPHER *c; |
018e57c7 DSH |
711 | |
712 | /* | |
713 | * We have num_of_ciphers descriptions compiled in, depending on the | |
714 | * method selected (SSLv2 and/or SSLv3, TLSv1 etc). | |
715 | * These will later be sorted in a linked list with at most num | |
716 | * entries. | |
717 | */ | |
58964a49 | 718 | |
d02b48c6 | 719 | /* Get the initial list of ciphers */ |
3822740c | 720 | co_list_num = 0; /* actual count of ciphers */ |
018e57c7 | 721 | for (i = 0; i < num_of_ciphers; i++) |
d02b48c6 | 722 | { |
018e57c7 | 723 | c = ssl_method->get_cipher(i); |
d02b48c6 | 724 | /* drop those that use any of that is not available */ |
52b8dad8 BM |
725 | if ((c != NULL) && c->valid && |
726 | !(c->algorithm_mkey & disabled_mkey) && | |
727 | !(c->algorithm_auth & disabled_auth) && | |
728 | !(c->algorithm_enc & disabled_enc) && | |
729 | !(c->algorithm_mac & disabled_mac) && | |
730 | !(c->algorithm_ssl & disabled_ssl)) | |
d02b48c6 | 731 | { |
3822740c RL |
732 | co_list[co_list_num].cipher = c; |
733 | co_list[co_list_num].next = NULL; | |
734 | co_list[co_list_num].prev = NULL; | |
735 | co_list[co_list_num].active = 0; | |
736 | co_list_num++; | |
f9b3bff6 | 737 | #ifdef KSSL_DEBUG |
52b8dad8 | 738 | printf("\t%d: %s %lx %lx %lx\n",i,c->name,c->id,c->algorithm_mkey,c->algorithm_auth); |
f9b3bff6 | 739 | #endif /* KSSL_DEBUG */ |
018e57c7 | 740 | /* |
d02b48c6 | 741 | if (!sk_push(ca_list,(char *)c)) goto err; |
018e57c7 | 742 | */ |
d02b48c6 RE |
743 | } |
744 | } | |
018e57c7 DSH |
745 | |
746 | /* | |
747 | * Prepare linked list from list entries | |
748 | */ | |
3822740c | 749 | if (co_list_num > 0) |
58964a49 | 750 | { |
fd5bc65c BM |
751 | co_list[0].prev = NULL; |
752 | ||
753 | if (co_list_num > 1) | |
754 | { | |
755 | co_list[0].next = &co_list[1]; | |
756 | ||
757 | for (i = 1; i < co_list_num - 1; i++) | |
758 | { | |
759 | co_list[i].prev = &co_list[i - 1]; | |
760 | co_list[i].next = &co_list[i + 1]; | |
761 | } | |
762 | ||
763 | co_list[co_list_num - 1].prev = &co_list[co_list_num - 2]; | |
764 | } | |
765 | ||
766 | co_list[co_list_num - 1].next = NULL; | |
767 | ||
768 | *head_p = &co_list[0]; | |
769 | *tail_p = &co_list[co_list_num - 1]; | |
58964a49 | 770 | } |
018e57c7 | 771 | } |
d02b48c6 | 772 | |
babb3798 | 773 | static void ssl_cipher_collect_aliases(const SSL_CIPHER **ca_list, |
52b8dad8 BM |
774 | int num_of_group_aliases, |
775 | unsigned long disabled_mkey, unsigned long disabled_auth, | |
776 | unsigned long disabled_enc, unsigned long disabled_mac, | |
777 | unsigned long disabled_ssl, | |
018e57c7 DSH |
778 | CIPHER_ORDER *head) |
779 | { | |
780 | CIPHER_ORDER *ciph_curr; | |
babb3798 | 781 | const SSL_CIPHER **ca_curr; |
018e57c7 | 782 | int i; |
52b8dad8 BM |
783 | unsigned long mask_mkey = ~disabled_mkey; |
784 | unsigned long mask_auth = ~disabled_auth; | |
785 | unsigned long mask_enc = ~disabled_enc; | |
786 | unsigned long mask_mac = ~disabled_mac; | |
787 | unsigned long mask_ssl = ~disabled_ssl; | |
d02b48c6 | 788 | |
018e57c7 DSH |
789 | /* |
790 | * First, add the real ciphers as already collected | |
791 | */ | |
792 | ciph_curr = head; | |
793 | ca_curr = ca_list; | |
794 | while (ciph_curr != NULL) | |
d02b48c6 | 795 | { |
018e57c7 DSH |
796 | *ca_curr = ciph_curr->cipher; |
797 | ca_curr++; | |
798 | ciph_curr = ciph_curr->next; | |
d02b48c6 RE |
799 | } |
800 | ||
018e57c7 DSH |
801 | /* |
802 | * Now we add the available ones from the cipher_aliases[] table. | |
09e20e0b BM |
803 | * They represent either one or more algorithms, some of which |
804 | * in any affected category must be supported (set in enabled_mask), | |
89bbe14c | 805 | * or represent a cipher strength value (will be added in any case because algorithms=0). |
018e57c7 DSH |
806 | */ |
807 | for (i = 0; i < num_of_group_aliases; i++) | |
808 | { | |
52b8dad8 BM |
809 | unsigned long algorithm_mkey = cipher_aliases[i].algorithm_mkey; |
810 | unsigned long algorithm_auth = cipher_aliases[i].algorithm_auth; | |
811 | unsigned long algorithm_enc = cipher_aliases[i].algorithm_enc; | |
812 | unsigned long algorithm_mac = cipher_aliases[i].algorithm_mac; | |
813 | unsigned long algorithm_ssl = cipher_aliases[i].algorithm_ssl; | |
814 | ||
815 | if (algorithm_mkey) | |
816 | if ((algorithm_mkey & mask_mkey) == 0) | |
817 | continue; | |
818 | ||
819 | if (algorithm_auth) | |
820 | if ((algorithm_auth & mask_auth) == 0) | |
09e20e0b | 821 | continue; |
09e20e0b | 822 | |
52b8dad8 BM |
823 | if (algorithm_enc) |
824 | if ((algorithm_enc & mask_enc) == 0) | |
09e20e0b | 825 | continue; |
09e20e0b | 826 | |
52b8dad8 BM |
827 | if (algorithm_mac) |
828 | if ((algorithm_mac & mask_mac) == 0) | |
09e20e0b | 829 | continue; |
09e20e0b | 830 | |
52b8dad8 BM |
831 | if (algorithm_ssl) |
832 | if ((algorithm_ssl & mask_ssl) == 0) | |
09e20e0b | 833 | continue; |
09e20e0b BM |
834 | |
835 | *ca_curr = (SSL_CIPHER *)(cipher_aliases + i); | |
836 | ca_curr++; | |
018e57c7 | 837 | } |
d02b48c6 | 838 | |
018e57c7 DSH |
839 | *ca_curr = NULL; /* end of list */ |
840 | } | |
d02b48c6 | 841 | |
52b8dad8 BM |
842 | static void ssl_cipher_apply_rule(unsigned long cipher_id, |
843 | unsigned long alg_mkey, unsigned long alg_auth, | |
844 | unsigned long alg_enc, unsigned long alg_mac, | |
845 | unsigned long alg_ssl, | |
846 | unsigned long algo_strength, | |
a717831d | 847 | int rule, int strength_bits, |
018e57c7 DSH |
848 | CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p) |
849 | { | |
fd5bc65c | 850 | CIPHER_ORDER *head, *tail, *curr, *curr2, *last; |
babb3798 | 851 | const SSL_CIPHER *cp; |
fd5bc65c | 852 | int reverse = 0; |
018e57c7 DSH |
853 | |
854 | #ifdef CIPHER_DEBUG | |
52b8dad8 BM |
855 | printf("Applying rule %d with %08lx/%08lx/%08lx/%08lx/%08lx %08lx (%d)\n", |
856 | rule, alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength, strength_bits); | |
018e57c7 | 857 | #endif |
d02b48c6 | 858 | |
fd5bc65c BM |
859 | if (rule == CIPHER_DEL) |
860 | reverse = 1; /* needed to maintain sorting between currently deleted ciphers */ | |
861 | ||
862 | head = *head_p; | |
863 | tail = *tail_p; | |
864 | ||
865 | if (reverse) | |
866 | { | |
867 | curr = tail; | |
868 | last = head; | |
869 | } | |
870 | else | |
871 | { | |
872 | curr = head; | |
873 | last = tail; | |
874 | } | |
875 | ||
876 | curr2 = curr; | |
d02b48c6 RE |
877 | for (;;) |
878 | { | |
fd5bc65c | 879 | if ((curr == NULL) || (curr == last)) break; |
018e57c7 | 880 | curr = curr2; |
fd5bc65c | 881 | curr2 = reverse ? curr->prev : curr->next; |
018e57c7 DSH |
882 | |
883 | cp = curr->cipher; | |
884 | ||
52b8dad8 BM |
885 | /* |
886 | * Selection criteria is either the value of strength_bits | |
887 | * or the algorithms used. | |
888 | */ | |
889 | if (strength_bits >= 0) | |
ba1ba5f0 | 890 | { |
52b8dad8 | 891 | if (strength_bits != cp->strength_bits) |
ba1ba5f0 DSH |
892 | continue; |
893 | } | |
52b8dad8 | 894 | else |
018e57c7 | 895 | { |
018e57c7 | 896 | #ifdef CIPHER_DEBUG |
52b8dad8 | 897 | printf("\nName: %s:\nAlgo = %08lx/%08lx/%08lx/%08lx/%08lx Algo_strength = %08lx\n", cp->name, cp->algorithm_mkey, cp->algorithm_auth, cp->algorithm_enc, cp->algorithm_mac, cp->algorithm_ssl, cp->algo_strength); |
018e57c7 | 898 | #endif |
52b8dad8 BM |
899 | |
900 | if (alg_mkey && !(alg_mkey & cp->algorithm_mkey)) | |
901 | continue; | |
902 | if (alg_auth && !(alg_auth & cp->algorithm_auth)) | |
903 | continue; | |
904 | if (alg_enc && !(alg_enc & cp->algorithm_enc)) | |
905 | continue; | |
906 | if (alg_mac && !(alg_mac & cp->algorithm_mac)) | |
907 | continue; | |
908 | if (alg_ssl && !(alg_ssl & cp->algorithm_ssl)) | |
909 | continue; | |
910 | if ((algo_strength & SSL_EXP_MASK) && !(algo_strength & SSL_EXP_MASK & cp->algo_strength)) | |
911 | continue; | |
912 | if ((algo_strength & SSL_STRONG_MASK) && !(algo_strength & SSL_STRONG_MASK & cp->algo_strength)) | |
913 | continue; | |
018e57c7 | 914 | } |
018e57c7 DSH |
915 | |
916 | #ifdef CIPHER_DEBUG | |
917 | printf("Action = %d\n", rule); | |
918 | #endif | |
919 | ||
920 | /* add the cipher if it has not been added yet. */ | |
921 | if (rule == CIPHER_ADD) | |
922 | { | |
fd5bc65c | 923 | /* reverse == 0 */ |
018e57c7 DSH |
924 | if (!curr->active) |
925 | { | |
926 | ll_append_tail(&head, curr, &tail); | |
927 | curr->active = 1; | |
928 | } | |
929 | } | |
930 | /* Move the added cipher to this location */ | |
931 | else if (rule == CIPHER_ORD) | |
932 | { | |
fd5bc65c | 933 | /* reverse == 0 */ |
018e57c7 DSH |
934 | if (curr->active) |
935 | { | |
936 | ll_append_tail(&head, curr, &tail); | |
937 | } | |
938 | } | |
939 | else if (rule == CIPHER_DEL) | |
fd5bc65c BM |
940 | { |
941 | /* reverse == 1 */ | |
942 | if (curr->active) | |
943 | { | |
944 | /* most recently deleted ciphersuites get best positions | |
945 | * for any future CIPHER_ADD (note that the CIPHER_DEL loop | |
946 | * works in reverse to maintain the order) */ | |
947 | ll_append_head(&head, curr, &tail); | |
948 | curr->active = 0; | |
949 | } | |
950 | } | |
018e57c7 DSH |
951 | else if (rule == CIPHER_KILL) |
952 | { | |
fd5bc65c | 953 | /* reverse == 0 */ |
018e57c7 DSH |
954 | if (head == curr) |
955 | head = curr->next; | |
956 | else | |
957 | curr->prev->next = curr->next; | |
958 | if (tail == curr) | |
959 | tail = curr->prev; | |
960 | curr->active = 0; | |
961 | if (curr->next != NULL) | |
962 | curr->next->prev = curr->prev; | |
963 | if (curr->prev != NULL) | |
964 | curr->prev->next = curr->next; | |
965 | curr->next = NULL; | |
966 | curr->prev = NULL; | |
967 | } | |
968 | } | |
969 | ||
970 | *head_p = head; | |
971 | *tail_p = tail; | |
972 | } | |
973 | ||
a717831d | 974 | static int ssl_cipher_strength_sort(CIPHER_ORDER **head_p, |
3822740c | 975 | CIPHER_ORDER **tail_p) |
018e57c7 DSH |
976 | { |
977 | int max_strength_bits, i, *number_uses; | |
978 | CIPHER_ORDER *curr; | |
979 | ||
980 | /* | |
981 | * This routine sorts the ciphers with descending strength. The sorting | |
982 | * must keep the pre-sorted sequence, so we apply the normal sorting | |
983 | * routine as '+' movement to the end of the list. | |
984 | */ | |
985 | max_strength_bits = 0; | |
986 | curr = *head_p; | |
987 | while (curr != NULL) | |
988 | { | |
989 | if (curr->active && | |
990 | (curr->cipher->strength_bits > max_strength_bits)) | |
991 | max_strength_bits = curr->cipher->strength_bits; | |
992 | curr = curr->next; | |
993 | } | |
994 | ||
26a3a48d | 995 | number_uses = OPENSSL_malloc((max_strength_bits + 1) * sizeof(int)); |
018e57c7 | 996 | if (!number_uses) |
52b8dad8 | 997 | { |
018e57c7 DSH |
998 | SSLerr(SSL_F_SSL_CIPHER_STRENGTH_SORT,ERR_R_MALLOC_FAILURE); |
999 | return(0); | |
52b8dad8 | 1000 | } |
018e57c7 DSH |
1001 | memset(number_uses, 0, (max_strength_bits + 1) * sizeof(int)); |
1002 | ||
1003 | /* | |
1004 | * Now find the strength_bits values actually used | |
1005 | */ | |
1006 | curr = *head_p; | |
1007 | while (curr != NULL) | |
1008 | { | |
1009 | if (curr->active) | |
1010 | number_uses[curr->cipher->strength_bits]++; | |
1011 | curr = curr->next; | |
1012 | } | |
018e57c7 DSH |
1013 | /* |
1014 | * Go through the list of used strength_bits values in descending | |
64287002 | 1015 | * order. |
018e57c7 | 1016 | */ |
018e57c7 | 1017 | for (i = max_strength_bits; i >= 0; i--) |
018e57c7 | 1018 | if (number_uses[i] > 0) |
52b8dad8 | 1019 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ORD, i, head_p, tail_p); |
018e57c7 | 1020 | |
26a3a48d | 1021 | OPENSSL_free(number_uses); |
018e57c7 DSH |
1022 | return(1); |
1023 | } | |
1024 | ||
1025 | static int ssl_cipher_process_rulestr(const char *rule_str, | |
a717831d | 1026 | CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p, |
babb3798 | 1027 | const SSL_CIPHER **ca_list) |
018e57c7 | 1028 | { |
52b8dad8 | 1029 | unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength; |
c8bbd98a | 1030 | const char *l, *buf; |
018e57c7 | 1031 | int j, multi, found, rule, retval, ok, buflen; |
52b8dad8 | 1032 | unsigned long cipher_id = 0; |
018e57c7 | 1033 | char ch; |
58964a49 | 1034 | |
018e57c7 DSH |
1035 | retval = 1; |
1036 | l = rule_str; | |
1037 | for (;;) | |
1038 | { | |
1039 | ch = *l; | |
58964a49 | 1040 | |
018e57c7 DSH |
1041 | if (ch == '\0') |
1042 | break; /* done */ | |
d02b48c6 | 1043 | if (ch == '-') |
018e57c7 | 1044 | { rule = CIPHER_DEL; l++; } |
d02b48c6 | 1045 | else if (ch == '+') |
018e57c7 | 1046 | { rule = CIPHER_ORD; l++; } |
d02b48c6 | 1047 | else if (ch == '!') |
018e57c7 DSH |
1048 | { rule = CIPHER_KILL; l++; } |
1049 | else if (ch == '@') | |
1050 | { rule = CIPHER_SPECIAL; l++; } | |
1051 | else | |
1052 | { rule = CIPHER_ADD; } | |
d02b48c6 | 1053 | |
58964a49 | 1054 | if (ITEM_SEP(ch)) |
d02b48c6 RE |
1055 | { |
1056 | l++; | |
1057 | continue; | |
1058 | } | |
018e57c7 | 1059 | |
52b8dad8 BM |
1060 | alg_mkey = 0; |
1061 | alg_auth = 0; | |
1062 | alg_enc = 0; | |
1063 | alg_mac = 0; | |
1064 | alg_ssl = 0; | |
1065 | algo_strength = 0; | |
d02b48c6 | 1066 | |
d02b48c6 RE |
1067 | for (;;) |
1068 | { | |
018e57c7 DSH |
1069 | ch = *l; |
1070 | buf = l; | |
1071 | buflen = 0; | |
ca570cfd | 1072 | #ifndef CHARSET_EBCDIC |
d02b48c6 RE |
1073 | while ( ((ch >= 'A') && (ch <= 'Z')) || |
1074 | ((ch >= '0') && (ch <= '9')) || | |
1075 | ((ch >= 'a') && (ch <= 'z')) || | |
1076 | (ch == '-')) | |
ca570cfd UM |
1077 | #else |
1078 | while ( isalnum(ch) || (ch == '-')) | |
1079 | #endif | |
d02b48c6 | 1080 | { |
018e57c7 DSH |
1081 | ch = *(++l); |
1082 | buflen++; | |
d02b48c6 | 1083 | } |
018e57c7 DSH |
1084 | |
1085 | if (buflen == 0) | |
1086 | { | |
1087 | /* | |
4013f3bf | 1088 | * We hit something we cannot deal with, |
657e60fa | 1089 | * it is no command or separator nor |
018e57c7 DSH |
1090 | * alphanumeric, so we call this an error. |
1091 | */ | |
1092 | SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, | |
1093 | SSL_R_INVALID_COMMAND); | |
1094 | retval = found = 0; | |
1095 | l++; | |
1096 | break; | |
1097 | } | |
1098 | ||
1099 | if (rule == CIPHER_SPECIAL) | |
1100 | { | |
4013f3bf | 1101 | found = 0; /* unused -- avoid compiler warning */ |
018e57c7 DSH |
1102 | break; /* special treatment */ |
1103 | } | |
d02b48c6 RE |
1104 | |
1105 | /* check for multi-part specification */ | |
58964a49 RE |
1106 | if (ch == '+') |
1107 | { | |
1108 | multi=1; | |
1109 | l++; | |
1110 | } | |
1111 | else | |
1112 | multi=0; | |
d02b48c6 | 1113 | |
018e57c7 | 1114 | /* |
4013f3bf | 1115 | * Now search for the cipher alias in the ca_list. Be careful |
018e57c7 DSH |
1116 | * with the strncmp, because the "buflen" limitation |
1117 | * will make the rule "ADH:SOME" and the cipher | |
1118 | * "ADH-MY-CIPHER" look like a match for buflen=3. | |
4013f3bf BM |
1119 | * So additionally check whether the cipher name found |
1120 | * has the correct length. We can save a strlen() call: | |
018e57c7 | 1121 | * just checking for the '\0' at the right place is |
f65a7578 LJ |
1122 | * sufficient, we have to strncmp() anyway. (We cannot |
1123 | * use strcmp(), because buf is not '\0' terminated.) | |
018e57c7 | 1124 | */ |
52b8dad8 BM |
1125 | j = found = 0; |
1126 | cipher_id = 0; | |
1127 | while (ca_list[j]) | |
018e57c7 | 1128 | { |
f65a7578 LJ |
1129 | if (!strncmp(buf, ca_list[j]->name, buflen) && |
1130 | (ca_list[j]->name[buflen] == '\0')) | |
018e57c7 DSH |
1131 | { |
1132 | found = 1; | |
1133 | break; | |
1134 | } | |
1135 | else | |
1136 | j++; | |
1137 | } | |
52b8dad8 | 1138 | |
018e57c7 DSH |
1139 | if (!found) |
1140 | break; /* ignore this entry */ | |
1141 | ||
52b8dad8 BM |
1142 | if (ca_list[j]->algorithm_mkey) |
1143 | { | |
1144 | if (alg_mkey) | |
1145 | { | |
1146 | alg_mkey &= ca_list[j]->algorithm_mkey; | |
1147 | if (!alg_mkey) { found = 0; break; } | |
1148 | } | |
1149 | else | |
1150 | alg_mkey = ca_list[j]->algorithm_mkey; | |
1151 | } | |
1152 | ||
1153 | if (ca_list[j]->algorithm_auth) | |
1154 | { | |
1155 | if (alg_auth) | |
1156 | { | |
1157 | alg_auth &= ca_list[j]->algorithm_auth; | |
1158 | if (!alg_auth) { found = 0; break; } | |
1159 | } | |
1160 | else | |
1161 | alg_auth = ca_list[j]->algorithm_auth; | |
1162 | } | |
1163 | ||
1164 | if (ca_list[j]->algorithm_enc) | |
1165 | { | |
1166 | if (alg_enc) | |
1167 | { | |
1168 | alg_enc &= ca_list[j]->algorithm_enc; | |
1169 | if (!alg_enc) { found = 0; break; } | |
1170 | } | |
1171 | else | |
1172 | alg_enc = ca_list[j]->algorithm_enc; | |
1173 | } | |
1174 | ||
1175 | if (ca_list[j]->algorithm_mac) | |
1176 | { | |
1177 | if (alg_mac) | |
1178 | { | |
1179 | alg_mac &= ca_list[j]->algorithm_mac; | |
1180 | if (!alg_mac) { found = 0; break; } | |
1181 | } | |
1182 | else | |
1183 | alg_mac = ca_list[j]->algorithm_mac; | |
1184 | } | |
1185 | ||
1186 | if (ca_list[j]->algo_strength & SSL_EXP_MASK) | |
1187 | { | |
1188 | if (algo_strength & SSL_EXP_MASK) | |
1189 | { | |
1190 | algo_strength &= (ca_list[j]->algo_strength & SSL_EXP_MASK) | ~SSL_EXP_MASK; | |
1191 | if (!(algo_strength & SSL_EXP_MASK)) { found = 0; break; } | |
1192 | } | |
1193 | else | |
1194 | algo_strength |= ca_list[j]->algo_strength & SSL_EXP_MASK; | |
1195 | } | |
1196 | ||
1197 | if (ca_list[j]->algo_strength & SSL_STRONG_MASK) | |
1198 | { | |
1199 | if (algo_strength & SSL_STRONG_MASK) | |
1200 | { | |
1201 | algo_strength &= (ca_list[j]->algo_strength & SSL_STRONG_MASK) | ~SSL_STRONG_MASK; | |
1202 | if (!(algo_strength & SSL_STRONG_MASK)) { found = 0; break; } | |
1203 | } | |
1204 | else | |
1205 | algo_strength |= ca_list[j]->algo_strength & SSL_STRONG_MASK; | |
1206 | } | |
1207 | ||
ed65f7dc BM |
1208 | if (ca_list[j]->valid) |
1209 | { | |
52b8dad8 BM |
1210 | /* explicit ciphersuite found; its protocol version |
1211 | * does not become part of the search pattern!*/ | |
1212 | ||
ed65f7dc | 1213 | cipher_id = ca_list[j]->id; |
ed65f7dc | 1214 | } |
52b8dad8 BM |
1215 | else |
1216 | { | |
1217 | /* not an explicit ciphersuite; only in this case, the | |
1218 | * protocol version is considered part of the search pattern */ | |
ed65f7dc | 1219 | |
52b8dad8 BM |
1220 | if (ca_list[j]->algorithm_ssl) |
1221 | { | |
1222 | if (alg_ssl) | |
1223 | { | |
1224 | alg_ssl &= ca_list[j]->algorithm_ssl; | |
1225 | if (!alg_ssl) { found = 0; break; } | |
1226 | } | |
1227 | else | |
1228 | alg_ssl = ca_list[j]->algorithm_ssl; | |
1229 | } | |
1230 | } | |
1231 | ||
d02b48c6 RE |
1232 | if (!multi) break; |
1233 | } | |
018e57c7 | 1234 | |
4013f3bf BM |
1235 | /* |
1236 | * Ok, we have the rule, now apply it | |
1237 | */ | |
1238 | if (rule == CIPHER_SPECIAL) | |
1239 | { /* special command */ | |
1240 | ok = 0; | |
1241 | if ((buflen == 8) && | |
1242 | !strncmp(buf, "STRENGTH", 8)) | |
a717831d | 1243 | ok = ssl_cipher_strength_sort(head_p, tail_p); |
4013f3bf BM |
1244 | else |
1245 | SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, | |
1246 | SSL_R_INVALID_COMMAND); | |
1247 | if (ok == 0) | |
1248 | retval = 0; | |
018e57c7 | 1249 | /* |
4013f3bf BM |
1250 | * We do not support any "multi" options |
1251 | * together with "@", so throw away the | |
1252 | * rest of the command, if any left, until | |
1253 | * end or ':' is found. | |
018e57c7 | 1254 | */ |
52b8dad8 | 1255 | while ((*l != '\0') && !ITEM_SEP(*l)) |
4013f3bf BM |
1256 | l++; |
1257 | } | |
1258 | else if (found) | |
1259 | { | |
52b8dad8 BM |
1260 | ssl_cipher_apply_rule(cipher_id, |
1261 | alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength, | |
1262 | rule, -1, head_p, tail_p); | |
4013f3bf BM |
1263 | } |
1264 | else | |
1265 | { | |
52b8dad8 | 1266 | while ((*l != '\0') && !ITEM_SEP(*l)) |
4013f3bf BM |
1267 | l++; |
1268 | } | |
1269 | if (*l == '\0') break; /* done */ | |
d02b48c6 RE |
1270 | } |
1271 | ||
018e57c7 DSH |
1272 | return(retval); |
1273 | } | |
1274 | ||
1275 | STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method, | |
1276 | STACK_OF(SSL_CIPHER) **cipher_list, | |
1277 | STACK_OF(SSL_CIPHER) **cipher_list_by_id, | |
1278 | const char *rule_str) | |
1279 | { | |
1280 | int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases; | |
52b8dad8 | 1281 | unsigned long disabled_mkey, disabled_auth, disabled_enc, disabled_mac, disabled_ssl; |
f0747cd9 | 1282 | STACK_OF(SSL_CIPHER) *cipherstack, *tmp_cipher_list; |
018e57c7 | 1283 | const char *rule_p; |
3822740c | 1284 | CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr; |
bfaead2b | 1285 | const SSL_CIPHER **ca_list = NULL; |
018e57c7 DSH |
1286 | |
1287 | /* | |
1288 | * Return with error if nothing to do. | |
1289 | */ | |
f0747cd9 NL |
1290 | if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL) |
1291 | return NULL; | |
018e57c7 | 1292 | |
018e57c7 DSH |
1293 | /* |
1294 | * To reduce the work to do we only want to process the compiled | |
1295 | * in algorithms, so we first get the mask of disabled ciphers. | |
1296 | */ | |
52b8dad8 | 1297 | ssl_cipher_get_disabled(&disabled_mkey, &disabled_auth, &disabled_enc, &disabled_mac, &disabled_ssl); |
018e57c7 DSH |
1298 | |
1299 | /* | |
1300 | * Now we have to collect the available ciphers from the compiled | |
1301 | * in ciphers. We cannot get more than the number compiled in, so | |
1302 | * it is used for allocation. | |
1303 | */ | |
1304 | num_of_ciphers = ssl_method->num_ciphers(); | |
f9b3bff6 RL |
1305 | #ifdef KSSL_DEBUG |
1306 | printf("ssl_create_cipher_list() for %d ciphers\n", num_of_ciphers); | |
1307 | #endif /* KSSL_DEBUG */ | |
3822740c RL |
1308 | co_list = (CIPHER_ORDER *)OPENSSL_malloc(sizeof(CIPHER_ORDER) * num_of_ciphers); |
1309 | if (co_list == NULL) | |
d02b48c6 | 1310 | { |
018e57c7 DSH |
1311 | SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE); |
1312 | return(NULL); /* Failure */ | |
1313 | } | |
58964a49 | 1314 | |
52b8dad8 BM |
1315 | ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers, |
1316 | disabled_mkey, disabled_auth, disabled_enc, disabled_mac, disabled_ssl, | |
1317 | co_list, &head, &tail); | |
018e57c7 | 1318 | |
0a05123a BM |
1319 | |
1320 | /* Now arrange all ciphers by preference: */ | |
1321 | ||
fd5bc65c BM |
1322 | /* Everything else being equal, prefer ephemeral ECDH over other key exchange mechanisms */ |
1323 | ssl_cipher_apply_rule(0, SSL_kEECDH, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail); | |
1324 | ssl_cipher_apply_rule(0, SSL_kEECDH, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail); | |
1325 | ||
aa79dd68 | 1326 | /* AES is our preferred symmetric cipher */ |
0a05123a BM |
1327 | ssl_cipher_apply_rule(0, 0, 0, SSL_AES, 0, 0, 0, CIPHER_ADD, -1, &head, &tail); |
1328 | ||
aa79dd68 | 1329 | /* Temporarily enable everything else for sorting */ |
0a05123a BM |
1330 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail); |
1331 | ||
aa79dd68 BM |
1332 | /* Low priority for MD5 */ |
1333 | ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5, 0, 0, CIPHER_ORD, -1, &head, &tail); | |
1334 | ||
0a05123a BM |
1335 | /* Move anonymous ciphers to the end. Usually, these will remain disabled. |
1336 | * (For applications that allow them, they aren't too bad, but we prefer | |
1337 | * authenticated ciphers.) */ | |
1338 | ssl_cipher_apply_rule(0, 0, SSL_aNULL, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); | |
1339 | ||
e0418639 | 1340 | /* Move ciphers without forward secrecy to the end */ |
0a05123a | 1341 | ssl_cipher_apply_rule(0, 0, SSL_aECDH, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); |
e0418639 | 1342 | /* ssl_cipher_apply_rule(0, 0, SSL_aDH, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); */ |
0a05123a | 1343 | ssl_cipher_apply_rule(0, SSL_kRSA, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); |
e0418639 | 1344 | ssl_cipher_apply_rule(0, SSL_kPSK, 0,0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); |
114c9c36 | 1345 | ssl_cipher_apply_rule(0, SSL_kKRB5, 0,0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); |
0a05123a BM |
1346 | |
1347 | /* RC4 is sort-of broken -- move the the end */ | |
1348 | ssl_cipher_apply_rule(0, 0, 0, SSL_RC4, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); | |
1349 | ||
1350 | /* Now sort by symmetric encryption strength. The above ordering remains | |
1351 | * in force within each class */ | |
1352 | if (!ssl_cipher_strength_sort(&head, &tail)) | |
1353 | { | |
1354 | OPENSSL_free(co_list); | |
1355 | return NULL; | |
1356 | } | |
1357 | ||
1358 | /* Now disable everything (maintaining the ordering!) */ | |
1359 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail); | |
1360 | ||
1361 | ||
018e57c7 DSH |
1362 | /* |
1363 | * We also need cipher aliases for selecting based on the rule_str. | |
1364 | * There might be two types of entries in the rule_str: 1) names | |
1365 | * of ciphers themselves 2) aliases for groups of ciphers. | |
1366 | * For 1) we need the available ciphers and for 2) the cipher | |
657e60fa | 1367 | * groups of cipher_aliases added together in one list (otherwise |
018e57c7 DSH |
1368 | * we would be happy with just the cipher_aliases table). |
1369 | */ | |
1370 | num_of_group_aliases = sizeof(cipher_aliases) / sizeof(SSL_CIPHER); | |
1371 | num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1; | |
babb3798 | 1372 | ca_list = OPENSSL_malloc(sizeof(SSL_CIPHER *) * num_of_alias_max); |
018e57c7 DSH |
1373 | if (ca_list == NULL) |
1374 | { | |
3822740c | 1375 | OPENSSL_free(co_list); |
018e57c7 DSH |
1376 | SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE); |
1377 | return(NULL); /* Failure */ | |
1378 | } | |
52b8dad8 | 1379 | ssl_cipher_collect_aliases(ca_list, num_of_group_aliases, |
bfaead2b BL |
1380 | disabled_mkey, disabled_auth, disabled_enc, |
1381 | disabled_mac, disabled_ssl, head); | |
018e57c7 DSH |
1382 | |
1383 | /* | |
1384 | * If the rule_string begins with DEFAULT, apply the default rule | |
1385 | * before using the (possibly available) additional rules. | |
1386 | */ | |
1387 | ok = 1; | |
1388 | rule_p = rule_str; | |
1389 | if (strncmp(rule_str,"DEFAULT",7) == 0) | |
1390 | { | |
1391 | ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST, | |
a717831d | 1392 | &head, &tail, ca_list); |
018e57c7 DSH |
1393 | rule_p += 7; |
1394 | if (*rule_p == ':') | |
1395 | rule_p++; | |
1396 | } | |
58964a49 | 1397 | |
018e57c7 | 1398 | if (ok && (strlen(rule_p) > 0)) |
a717831d | 1399 | ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list); |
d02b48c6 | 1400 | |
349e78e2 | 1401 | OPENSSL_free((void *)ca_list); /* Not needed anymore */ |
018e57c7 DSH |
1402 | |
1403 | if (!ok) | |
1404 | { /* Rule processing failure */ | |
3822740c | 1405 | OPENSSL_free(co_list); |
018e57c7 DSH |
1406 | return(NULL); |
1407 | } | |
0a05123a | 1408 | |
018e57c7 DSH |
1409 | /* |
1410 | * Allocate new "cipherstack" for the result, return with error | |
1411 | * if we cannot get one. | |
1412 | */ | |
62324627 | 1413 | if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL) |
018e57c7 | 1414 | { |
3822740c | 1415 | OPENSSL_free(co_list); |
018e57c7 | 1416 | return(NULL); |
d02b48c6 RE |
1417 | } |
1418 | ||
018e57c7 DSH |
1419 | /* |
1420 | * The cipher selection for the list is done. The ciphers are added | |
1421 | * to the resulting precedence to the STACK_OF(SSL_CIPHER). | |
1422 | */ | |
1423 | for (curr = head; curr != NULL; curr = curr->next) | |
d02b48c6 | 1424 | { |
58964a49 | 1425 | if (curr->active) |
d02b48c6 | 1426 | { |
018e57c7 | 1427 | sk_SSL_CIPHER_push(cipherstack, curr->cipher); |
d02b48c6 | 1428 | #ifdef CIPHER_DEBUG |
58964a49 | 1429 | printf("<%s>\n",curr->cipher->name); |
d02b48c6 | 1430 | #endif |
d02b48c6 RE |
1431 | } |
1432 | } | |
3822740c | 1433 | OPENSSL_free(co_list); /* Not needed any longer */ |
018e57c7 | 1434 | |
f0747cd9 NL |
1435 | tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack); |
1436 | if (tmp_cipher_list == NULL) | |
018e57c7 DSH |
1437 | { |
1438 | sk_SSL_CIPHER_free(cipherstack); | |
f0747cd9 | 1439 | return NULL; |
018e57c7 | 1440 | } |
f0747cd9 NL |
1441 | if (*cipher_list != NULL) |
1442 | sk_SSL_CIPHER_free(*cipher_list); | |
1443 | *cipher_list = cipherstack; | |
1444 | if (*cipher_list_by_id != NULL) | |
1445 | sk_SSL_CIPHER_free(*cipher_list_by_id); | |
1446 | *cipher_list_by_id = tmp_cipher_list; | |
a6fbcb42 | 1447 | (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id,ssl_cipher_ptr_id_cmp); |
d02b48c6 | 1448 | |
14b3f100 | 1449 | sk_SSL_CIPHER_sort(*cipher_list_by_id); |
018e57c7 | 1450 | return(cipherstack); |
d02b48c6 RE |
1451 | } |
1452 | ||
7689ed34 | 1453 | char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len) |
d02b48c6 | 1454 | { |
b1c4fe36 | 1455 | int is_export,pkl,kl; |
f4bfd357 NL |
1456 | const char *ver,*exp_str; |
1457 | const char *kx,*au,*enc,*mac; | |
c8bbd98a | 1458 | unsigned long alg_mkey,alg_auth,alg_enc,alg_mac,alg_ssl,alg2; |
f9b3bff6 | 1459 | #ifdef KSSL_DEBUG |
52b8dad8 | 1460 | static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s AL=%lx/%lx/%lx/%lx/%lx\n"; |
f9b3bff6 | 1461 | #else |
f4bfd357 | 1462 | static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n"; |
f9b3bff6 RL |
1463 | #endif /* KSSL_DEBUG */ |
1464 | ||
52b8dad8 BM |
1465 | alg_mkey = cipher->algorithm_mkey; |
1466 | alg_auth = cipher->algorithm_auth; | |
1467 | alg_enc = cipher->algorithm_enc; | |
1468 | alg_mac = cipher->algorithm_mac; | |
1469 | alg_ssl = cipher->algorithm_ssl; | |
1470 | ||
d02b48c6 RE |
1471 | alg2=cipher->algorithm2; |
1472 | ||
018e57c7 DSH |
1473 | is_export=SSL_C_IS_EXPORT(cipher); |
1474 | pkl=SSL_C_EXPORT_PKEYLENGTH(cipher); | |
1475 | kl=SSL_C_EXPORT_KEYLENGTH(cipher); | |
d8ec0dcf | 1476 | exp_str=is_export?" export":""; |
ea262260 | 1477 | |
52b8dad8 | 1478 | if (alg_ssl & SSL_SSLV2) |
d02b48c6 | 1479 | ver="SSLv2"; |
52b8dad8 | 1480 | else if (alg_ssl & SSL_SSLV3) |
d02b48c6 RE |
1481 | ver="SSLv3"; |
1482 | else | |
1483 | ver="unknown"; | |
1484 | ||
52b8dad8 | 1485 | switch (alg_mkey) |
d02b48c6 RE |
1486 | { |
1487 | case SSL_kRSA: | |
b1c4fe36 | 1488 | kx=is_export?(pkl == 512 ? "RSA(512)" : "RSA(1024)"):"RSA"; |
d02b48c6 RE |
1489 | break; |
1490 | case SSL_kDHr: | |
1491 | kx="DH/RSA"; | |
1492 | break; | |
1493 | case SSL_kDHd: | |
1494 | kx="DH/DSS"; | |
1495 | break; | |
89bbe14c BM |
1496 | case SSL_kKRB5: |
1497 | kx="KRB5"; | |
d02b48c6 RE |
1498 | break; |
1499 | case SSL_kEDH: | |
b1c4fe36 | 1500 | kx=is_export?(pkl == 512 ? "DH(512)" : "DH(1024)"):"DH"; |
d02b48c6 | 1501 | break; |
89bbe14c BM |
1502 | case SSL_kECDHr: |
1503 | kx="ECDH/RSA"; | |
1504 | break; | |
1505 | case SSL_kECDHe: | |
1506 | kx="ECDH/ECDSA"; | |
1507 | break; | |
1508 | case SSL_kEECDH: | |
1509 | kx="ECDH"; | |
ea262260 | 1510 | break; |
ddac1974 NL |
1511 | case SSL_kPSK: |
1512 | kx="PSK"; | |
1513 | break; | |
d02b48c6 RE |
1514 | default: |
1515 | kx="unknown"; | |
1516 | } | |
1517 | ||
52b8dad8 | 1518 | switch (alg_auth) |
d02b48c6 RE |
1519 | { |
1520 | case SSL_aRSA: | |
1521 | au="RSA"; | |
1522 | break; | |
1523 | case SSL_aDSS: | |
1524 | au="DSS"; | |
1525 | break; | |
1526 | case SSL_aDH: | |
1527 | au="DH"; | |
1528 | break; | |
89bbe14c BM |
1529 | case SSL_aKRB5: |
1530 | au="KRB5"; | |
1531 | break; | |
1532 | case SSL_aECDH: | |
1533 | au="ECDH"; | |
1534 | break; | |
d02b48c6 RE |
1535 | case SSL_aNULL: |
1536 | au="None"; | |
1537 | break; | |
ea262260 BM |
1538 | case SSL_aECDSA: |
1539 | au="ECDSA"; | |
1540 | break; | |
ddac1974 NL |
1541 | case SSL_aPSK: |
1542 | au="PSK"; | |
1543 | break; | |
d02b48c6 RE |
1544 | default: |
1545 | au="unknown"; | |
1546 | break; | |
1547 | } | |
1548 | ||
52b8dad8 | 1549 | switch (alg_enc) |
d02b48c6 RE |
1550 | { |
1551 | case SSL_DES: | |
b1c4fe36 | 1552 | enc=(is_export && kl == 5)?"DES(40)":"DES(56)"; |
d02b48c6 RE |
1553 | break; |
1554 | case SSL_3DES: | |
1555 | enc="3DES(168)"; | |
1556 | break; | |
1557 | case SSL_RC4: | |
b1c4fe36 | 1558 | enc=is_export?(kl == 5 ? "RC4(40)" : "RC4(56)") |
06ab81f9 | 1559 | :((alg2&SSL2_CF_8_BYTE_ENC)?"RC4(64)":"RC4(128)"); |
d02b48c6 RE |
1560 | break; |
1561 | case SSL_RC2: | |
b1c4fe36 | 1562 | enc=is_export?(kl == 5 ? "RC2(40)" : "RC2(56)"):"RC2(128)"; |
d02b48c6 RE |
1563 | break; |
1564 | case SSL_IDEA: | |
1565 | enc="IDEA(128)"; | |
1566 | break; | |
d02b48c6 RE |
1567 | case SSL_eNULL: |
1568 | enc="None"; | |
1569 | break; | |
52b8dad8 BM |
1570 | case SSL_AES128: |
1571 | enc="AES(128)"; | |
259810e0 | 1572 | break; |
52b8dad8 BM |
1573 | case SSL_AES256: |
1574 | enc="AES(256)"; | |
1575 | break; | |
1576 | case SSL_CAMELLIA128: | |
1577 | enc="Camellia(128)"; | |
1578 | break; | |
1579 | case SSL_CAMELLIA256: | |
1580 | enc="Camellia(256)"; | |
f3dea9a5 | 1581 | break; |
96afc1cf BM |
1582 | case SSL_SEED: |
1583 | enc="SEED(128)"; | |
1584 | break; | |
d02b48c6 RE |
1585 | default: |
1586 | enc="unknown"; | |
1587 | break; | |
1588 | } | |
1589 | ||
52b8dad8 | 1590 | switch (alg_mac) |
d02b48c6 RE |
1591 | { |
1592 | case SSL_MD5: | |
1593 | mac="MD5"; | |
1594 | break; | |
d02b48c6 RE |
1595 | case SSL_SHA1: |
1596 | mac="SHA1"; | |
1597 | break; | |
1598 | default: | |
1599 | mac="unknown"; | |
1600 | break; | |
1601 | } | |
1602 | ||
1603 | if (buf == NULL) | |
1604 | { | |
063c0502 | 1605 | len=128; |
26a3a48d RL |
1606 | buf=OPENSSL_malloc(len); |
1607 | if (buf == NULL) return("OPENSSL_malloc Error"); | |
d02b48c6 RE |
1608 | } |
1609 | else if (len < 128) | |
1610 | return("Buffer too small"); | |
1611 | ||
f9b3bff6 | 1612 | #ifdef KSSL_DEBUG |
52b8dad8 | 1613 | BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp_str,alg_mkey,alg_auth,alg_enc,alg_mac,alg_ssl); |
f9b3bff6 | 1614 | #else |
d8ec0dcf | 1615 | BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp_str); |
f9b3bff6 | 1616 | #endif /* KSSL_DEBUG */ |
d02b48c6 RE |
1617 | return(buf); |
1618 | } | |
1619 | ||
0821bcd4 | 1620 | char *SSL_CIPHER_get_version(const SSL_CIPHER *c) |
d02b48c6 RE |
1621 | { |
1622 | int i; | |
1623 | ||
58964a49 | 1624 | if (c == NULL) return("(NONE)"); |
d02b48c6 RE |
1625 | i=(int)(c->id>>24L); |
1626 | if (i == 3) | |
58964a49 | 1627 | return("TLSv1/SSLv3"); |
d02b48c6 RE |
1628 | else if (i == 2) |
1629 | return("SSLv2"); | |
1630 | else | |
1631 | return("unknown"); | |
1632 | } | |
1633 | ||
1634 | /* return the actual cipher being used */ | |
0821bcd4 | 1635 | const char *SSL_CIPHER_get_name(const SSL_CIPHER *c) |
d02b48c6 RE |
1636 | { |
1637 | if (c != NULL) | |
1638 | return(c->name); | |
1639 | return("(NONE)"); | |
1640 | } | |
1641 | ||
657e60fa | 1642 | /* number of bits for symmetric cipher */ |
0821bcd4 | 1643 | int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits) |
d02b48c6 | 1644 | { |
018e57c7 | 1645 | int ret=0; |
d02b48c6 RE |
1646 | |
1647 | if (c != NULL) | |
1648 | { | |
018e57c7 DSH |
1649 | if (alg_bits != NULL) *alg_bits = c->alg_bits; |
1650 | ret = c->strength_bits; | |
d02b48c6 | 1651 | } |
d02b48c6 RE |
1652 | return(ret); |
1653 | } | |
1654 | ||
6b691a5c | 1655 | SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n) |
413c4f45 MC |
1656 | { |
1657 | SSL_COMP *ctmp; | |
1658 | int i,nn; | |
1659 | ||
1660 | if ((n == 0) || (sk == NULL)) return(NULL); | |
f73e07cf | 1661 | nn=sk_SSL_COMP_num(sk); |
413c4f45 MC |
1662 | for (i=0; i<nn; i++) |
1663 | { | |
f73e07cf | 1664 | ctmp=sk_SSL_COMP_value(sk,i); |
413c4f45 MC |
1665 | if (ctmp->id == n) |
1666 | return(ctmp); | |
1667 | } | |
1668 | return(NULL); | |
1669 | } | |
1670 | ||
09b6c2ef DSH |
1671 | #ifdef OPENSSL_NO_COMP |
1672 | void *SSL_COMP_get_compression_methods(void) | |
1673 | { | |
1674 | return NULL; | |
1675 | } | |
1676 | int SSL_COMP_add_compression_method(int id, void *cm) | |
1677 | { | |
1678 | return 1; | |
1679 | } | |
1680 | ||
1681 | const char *SSL_COMP_get_name(const void *comp) | |
1682 | { | |
1683 | return NULL; | |
1684 | } | |
1685 | #else | |
6b691a5c | 1686 | STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void) |
413c4f45 | 1687 | { |
7ba666fa | 1688 | load_builtin_compressions(); |
413c4f45 MC |
1689 | return(ssl_comp_methods); |
1690 | } | |
1691 | ||
6b691a5c | 1692 | int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm) |
413c4f45 MC |
1693 | { |
1694 | SSL_COMP *comp; | |
413c4f45 | 1695 | |
9f495243 RL |
1696 | if (cm == NULL || cm->type == NID_undef) |
1697 | return 1; | |
1698 | ||
7ba666fa RL |
1699 | /* According to draft-ietf-tls-compression-04.txt, the |
1700 | compression number ranges should be the following: | |
1701 | ||
1702 | 0 to 63: methods defined by the IETF | |
1703 | 64 to 192: external party methods assigned by IANA | |
1704 | 193 to 255: reserved for private use */ | |
1705 | if (id < 193 || id > 255) | |
1706 | { | |
1707 | SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,SSL_R_COMPRESSION_ID_NOT_WITHIN_PRIVATE_RANGE); | |
1708 | return 0; | |
1709 | } | |
1710 | ||
058123af | 1711 | MemCheck_off(); |
26a3a48d | 1712 | comp=(SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP)); |
413c4f45 MC |
1713 | comp->id=id; |
1714 | comp->method=cm; | |
7ba666fa | 1715 | load_builtin_compressions(); |
82423549 | 1716 | if (ssl_comp_methods |
78625cac | 1717 | && sk_SSL_COMP_find(ssl_comp_methods,comp) >= 0) |
82423549 RL |
1718 | { |
1719 | OPENSSL_free(comp); | |
1720 | MemCheck_on(); | |
1721 | SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,SSL_R_DUPLICATE_COMPRESSION_ID); | |
1722 | return(1); | |
1723 | } | |
1724 | else if ((ssl_comp_methods == NULL) | |
7ba666fa | 1725 | || !sk_SSL_COMP_push(ssl_comp_methods,comp)) |
413c4f45 | 1726 | { |
7ba666fa | 1727 | OPENSSL_free(comp); |
058123af | 1728 | MemCheck_on(); |
413c4f45 | 1729 | SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,ERR_R_MALLOC_FAILURE); |
f6e8c19e | 1730 | return(1); |
413c4f45 MC |
1731 | } |
1732 | else | |
058123af RL |
1733 | { |
1734 | MemCheck_on(); | |
f6e8c19e | 1735 | return(0); |
058123af | 1736 | } |
413c4f45 | 1737 | } |
377dcdba RL |
1738 | |
1739 | const char *SSL_COMP_get_name(const COMP_METHOD *comp) | |
1740 | { | |
1741 | if (comp) | |
1742 | return comp->name; | |
1743 | return NULL; | |
1744 | } | |
1745 | ||
09b6c2ef | 1746 | #endif |