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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 BM |
144 | #include <openssl/objects.h> |
145 | #include <openssl/comp.h> | |
d02b48c6 RE |
146 | #include "ssl_locl.h" |
147 | ||
148 | #define SSL_ENC_DES_IDX 0 | |
149 | #define SSL_ENC_3DES_IDX 1 | |
150 | #define SSL_ENC_RC4_IDX 2 | |
151 | #define SSL_ENC_RC2_IDX 3 | |
152 | #define SSL_ENC_IDEA_IDX 4 | |
89bbe14c BM |
153 | #define SSL_ENC_NULL_IDX 5 |
154 | #define SSL_ENC_AES128_IDX 6 | |
155 | #define SSL_ENC_AES256_IDX 7 | |
156 | #define SSL_ENC_CAMELLIA128_IDX 8 | |
157 | #define SSL_ENC_CAMELLIA256_IDX 9 | |
158 | #define SSL_ENC_NUM_IDX 10 | |
f3dea9a5 | 159 | |
d02b48c6 | 160 | |
e778802f | 161 | static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]={ |
d02b48c6 RE |
162 | NULL,NULL,NULL,NULL,NULL,NULL, |
163 | }; | |
164 | ||
7ba666fa RL |
165 | #define SSL_COMP_NULL_IDX 0 |
166 | #define SSL_COMP_ZLIB_IDX 1 | |
167 | #define SSL_COMP_NUM_IDX 2 | |
168 | ||
f73e07cf | 169 | static STACK_OF(SSL_COMP) *ssl_comp_methods=NULL; |
413c4f45 | 170 | |
d02b48c6 | 171 | #define SSL_MD_MD5_IDX 0 |
58964a49 RE |
172 | #define SSL_MD_SHA1_IDX 1 |
173 | #define SSL_MD_NUM_IDX 2 | |
e778802f | 174 | static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]={ |
58964a49 | 175 | NULL,NULL, |
d02b48c6 RE |
176 | }; |
177 | ||
d02b48c6 RE |
178 | #define CIPHER_ADD 1 |
179 | #define CIPHER_KILL 2 | |
180 | #define CIPHER_DEL 3 | |
58964a49 | 181 | #define CIPHER_ORD 4 |
018e57c7 | 182 | #define CIPHER_SPECIAL 5 |
d02b48c6 | 183 | |
58964a49 RE |
184 | typedef struct cipher_order_st |
185 | { | |
186 | SSL_CIPHER *cipher; | |
187 | int active; | |
188 | int dead; | |
189 | struct cipher_order_st *next,*prev; | |
190 | } CIPHER_ORDER; | |
191 | ||
018e57c7 | 192 | static const SSL_CIPHER cipher_aliases[]={ |
ed3ecd80 | 193 | /* "ALL" doesn't include eNULL (must be specifically enabled) */ |
52b8dad8 | 194 | {0,SSL_TXT_ALL,0, 0,0,~SSL_eNULL,0,0,0,0,0,0}, |
89bbe14c | 195 | /* "COMPLEMENTOFALL" */ |
52b8dad8 | 196 | {0,SSL_TXT_CMPALL,0, 0,0,SSL_eNULL,0,0,0,0,0,0}, |
89bbe14c BM |
197 | |
198 | /* "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in ALL!) */ | |
52b8dad8 | 199 | {0,SSL_TXT_CMPDEF,0, SSL_kEDH|SSL_kEECDH,SSL_aNULL,~SSL_eNULL,0,0,0,0,0,0}, |
89bbe14c | 200 | |
52b8dad8 BM |
201 | /* key exchange aliases |
202 | * (some of those using only a single bit here combine | |
203 | * multiple key exchange algs according to the RFCs, | |
89bbe14c | 204 | * e.g. kEDH combines DHE_DSS and DHE_RSA) */ |
52b8dad8 BM |
205 | {0,SSL_TXT_kRSA,0, SSL_kRSA, 0,0,0,0,0,0,0,0}, |
206 | ||
207 | {0,SSL_TXT_kDHr,0, SSL_kDHr, 0,0,0,0,0,0,0,0}, /* no such ciphersuites supported! */ | |
208 | {0,SSL_TXT_kDHd,0, SSL_kDHd, 0,0,0,0,0,0,0,0}, /* no such ciphersuites supported! */ | |
209 | {0,SSL_TXT_kDH,0, SSL_kDHr|SSL_kDHd,0,0,0,0,0,0,0,0}, /* no such ciphersuites supported! */ | |
210 | {0,SSL_TXT_kEDH,0, SSL_kEDH, 0,0,0,0,0,0,0,0}, | |
211 | {0,SSL_TXT_DH,0, SSL_kDHr|SSL_kDHd|SSL_kEDH,0,0,0,0,0,0,0,0}, | |
212 | ||
213 | {0,SSL_TXT_kKRB5,0, SSL_kKRB5, 0,0,0,0,0,0,0,0}, | |
214 | ||
215 | {0,SSL_TXT_kECDHr,0, SSL_kECDHr,0,0,0,0,0,0,0,0}, | |
216 | {0,SSL_TXT_kECDHe,0, SSL_kECDHe,0,0,0,0,0,0,0,0}, | |
217 | {0,SSL_TXT_kECDH,0, SSL_kECDHr|SSL_kECDHe,0,0,0,0,0,0,0,0}, | |
218 | {0,SSL_TXT_kEECDH,0, SSL_kEECDH,0,0,0,0,0,0,0,0}, | |
219 | {0,SSL_TXT_ECDH,0, SSL_kECDHr|SSL_kECDHe|SSL_kEECDH,0,0,0,0,0,0,0,0}, | |
220 | ||
221 | {0,SSL_TXT_kPSK,0, SSL_kPSK, 0,0,0,0,0,0,0,0}, | |
222 | ||
223 | ||
224 | /* server authentication aliases */ | |
225 | {0,SSL_TXT_aRSA,0, 0,SSL_aRSA, 0,0,0,0,0,0,0}, | |
226 | {0,SSL_TXT_aDSS,0, 0,SSL_aDSS, 0,0,0,0,0,0,0}, | |
227 | {0,SSL_TXT_DSS,0, 0,SSL_aDSS, 0,0,0,0,0,0,0}, | |
228 | {0,SSL_TXT_aKRB5,0, 0,SSL_aKRB5, 0,0,0,0,0,0,0}, | |
229 | {0,SSL_TXT_aNULL,0, 0,SSL_aNULL, 0,0,0,0,0,0,0}, | |
230 | {0,SSL_TXT_aDH,0, 0,SSL_aDH, 0,0,0,0,0,0,0}, /* no such ciphersuites supported! */ | |
231 | {0,SSL_TXT_aECDH,0, 0,SSL_aECDH, 0,0,0,0,0,0,0}, | |
232 | {0,SSL_TXT_aECDSA,0, 0,SSL_aECDSA,0,0,0,0,0,0,0}, | |
233 | {0,SSL_TXT_ECDSA,0, 0,SSL_aECDSA, 0,0,0,0,0,0,0}, | |
234 | {0,SSL_TXT_aPSK,0, 0,SSL_aPSK, 0,0,0,0,0,0,0}, | |
235 | ||
236 | ||
237 | /* aliases combining key exchange and server authentication */ | |
238 | {0,SSL_TXT_EDH,0, SSL_kEDH,~SSL_aNULL,0,0,0,0,0,0,0}, | |
239 | {0,SSL_TXT_EECDH,0, SSL_kEECDH,~SSL_aNULL,0,0,0,0,0,0,0}, | |
240 | {0,SSL_TXT_NULL,0, 0,0,SSL_eNULL, 0,0,0,0,0,0}, | |
241 | {0,SSL_TXT_KRB5,0, SSL_kKRB5,SSL_aKRB5,0,0,0,0,0,0,0}, | |
242 | {0,SSL_TXT_RSA,0, SSL_kRSA,SSL_aRSA,0,0,0,0,0,0,0}, | |
243 | {0,SSL_TXT_ADH,0, SSL_kEDH,SSL_aNULL,0,0,0,0,0,0,0}, | |
244 | {0,SSL_TXT_AECDH,0, SSL_kEECDH,SSL_aNULL,0,0,0,0,0,0,0}, | |
245 | {0,SSL_TXT_PSK,0, SSL_kPSK,SSL_aPSK,0,0,0,0,0,0,0}, | |
246 | ||
247 | ||
248 | /* symmetric encryption aliases */ | |
249 | {0,SSL_TXT_DES,0, 0,0,SSL_DES, 0,0,0,0,0,0}, | |
250 | {0,SSL_TXT_3DES,0, 0,0,SSL_3DES, 0,0,0,0,0,0}, | |
251 | {0,SSL_TXT_RC4,0, 0,0,SSL_RC4, 0,0,0,0,0,0}, | |
252 | {0,SSL_TXT_RC2,0, 0,0,SSL_RC2, 0,0,0,0,0,0}, | |
253 | {0,SSL_TXT_IDEA,0, 0,0,SSL_IDEA, 0,0,0,0,0,0}, | |
254 | {0,SSL_TXT_eNULL,0, 0,0,SSL_eNULL, 0,0,0,0,0,0}, | |
255 | {0,SSL_TXT_AES128,0, 0,0,SSL_AES128,0,0,0,0,0,0}, | |
256 | {0,SSL_TXT_AES256,0, 0,0,SSL_AES256,0,0,0,0,0,0}, | |
257 | {0,SSL_TXT_AES,0, 0,0,SSL_AES128|SSL_AES256,0,0,0,0,0,0}, | |
258 | {0,SSL_TXT_CAMELLIA128,0,0,0,SSL_CAMELLIA128,0,0,0,0,0,0}, | |
259 | {0,SSL_TXT_CAMELLIA256,0,0,0,SSL_CAMELLIA256,0,0,0,0,0,0}, | |
260 | {0,SSL_TXT_CAMELLIA ,0,0,0,SSL_CAMELLIA128|SSL_CAMELLIA256,0,0,0,0,0,0}, | |
261 | ||
262 | /* MAC aliases */ | |
263 | {0,SSL_TXT_MD5,0, 0,0,0,SSL_MD5, 0,0,0,0,0}, | |
264 | {0,SSL_TXT_SHA1,0, 0,0,0,SSL_SHA1, 0,0,0,0,0}, | |
265 | {0,SSL_TXT_SHA,0, 0,0,0,SSL_SHA1, 0,0,0,0,0}, | |
266 | ||
267 | /* protocol version aliases */ | |
268 | {0,SSL_TXT_SSLV2,0, 0,0,0,0,SSL_SSLV2, 0,0,0,0}, | |
269 | {0,SSL_TXT_SSLV3,0, 0,0,0,0,SSL_SSLV3, 0,0,0,0}, | |
270 | {0,SSL_TXT_TLSV1,0, 0,0,0,0,SSL_TLSV1, 0,0,0,0}, | |
271 | ||
272 | /* export flag */ | |
273 | {0,SSL_TXT_EXP,0, 0,0,0,0,0,SSL_EXPORT,0,0,0}, | |
274 | {0,SSL_TXT_EXPORT,0, 0,0,0,0,0,SSL_EXPORT,0,0,0}, | |
275 | ||
276 | /* strength classes */ | |
277 | {0,SSL_TXT_EXP40,0, 0,0,0,0,0,SSL_EXP40, 0,0,0}, | |
278 | {0,SSL_TXT_EXP56,0, 0,0,0,0,0,SSL_EXP56, 0,0,0}, | |
279 | {0,SSL_TXT_LOW,0, 0,0,0,0,0,SSL_LOW, 0,0,0}, | |
280 | {0,SSL_TXT_MEDIUM,0, 0,0,0,0,0,SSL_MEDIUM,0,0,0}, | |
281 | {0,SSL_TXT_HIGH,0, 0,0,0,0,0,SSL_HIGH, 0,0,0}, | |
d02b48c6 RE |
282 | }; |
283 | ||
7f3c9036 | 284 | void ssl_load_ciphers(void) |
d02b48c6 | 285 | { |
d02b48c6 RE |
286 | ssl_cipher_methods[SSL_ENC_DES_IDX]= |
287 | EVP_get_cipherbyname(SN_des_cbc); | |
288 | ssl_cipher_methods[SSL_ENC_3DES_IDX]= | |
289 | EVP_get_cipherbyname(SN_des_ede3_cbc); | |
290 | ssl_cipher_methods[SSL_ENC_RC4_IDX]= | |
291 | EVP_get_cipherbyname(SN_rc4); | |
292 | ssl_cipher_methods[SSL_ENC_RC2_IDX]= | |
293 | EVP_get_cipherbyname(SN_rc2_cbc); | |
5fdf0666 | 294 | #ifndef OPENSSL_NO_IDEA |
d02b48c6 RE |
295 | ssl_cipher_methods[SSL_ENC_IDEA_IDX]= |
296 | EVP_get_cipherbyname(SN_idea_cbc); | |
5fdf0666 RL |
297 | #else |
298 | ssl_cipher_methods[SSL_ENC_IDEA_IDX]= NULL; | |
299 | #endif | |
deb2c1a1 DSH |
300 | ssl_cipher_methods[SSL_ENC_AES128_IDX]= |
301 | EVP_get_cipherbyname(SN_aes_128_cbc); | |
302 | ssl_cipher_methods[SSL_ENC_AES256_IDX]= | |
303 | EVP_get_cipherbyname(SN_aes_256_cbc); | |
f3dea9a5 BM |
304 | ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX]= |
305 | EVP_get_cipherbyname(SN_camellia_128_cbc); | |
306 | ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX]= | |
307 | EVP_get_cipherbyname(SN_camellia_256_cbc); | |
d02b48c6 RE |
308 | |
309 | ssl_digest_methods[SSL_MD_MD5_IDX]= | |
310 | EVP_get_digestbyname(SN_md5); | |
d02b48c6 RE |
311 | ssl_digest_methods[SSL_MD_SHA1_IDX]= |
312 | EVP_get_digestbyname(SN_sha1); | |
313 | } | |
314 | ||
09b6c2ef DSH |
315 | |
316 | #ifndef OPENSSL_NO_COMP | |
317 | ||
7ba666fa RL |
318 | static int sk_comp_cmp(const SSL_COMP * const *a, |
319 | const SSL_COMP * const *b) | |
320 | { | |
321 | return((*a)->id-(*b)->id); | |
322 | } | |
323 | ||
324 | static void load_builtin_compressions(void) | |
325 | { | |
675f605d | 326 | int got_write_lock = 0; |
f70ddce7 | 327 | |
675f605d | 328 | CRYPTO_r_lock(CRYPTO_LOCK_SSL); |
7ba666fa RL |
329 | if (ssl_comp_methods == NULL) |
330 | { | |
675f605d BM |
331 | CRYPTO_r_unlock(CRYPTO_LOCK_SSL); |
332 | CRYPTO_w_lock(CRYPTO_LOCK_SSL); | |
333 | got_write_lock = 1; | |
334 | ||
335 | if (ssl_comp_methods == NULL) | |
7ba666fa | 336 | { |
675f605d BM |
337 | SSL_COMP *comp = NULL; |
338 | ||
339 | MemCheck_off(); | |
340 | ssl_comp_methods=sk_SSL_COMP_new(sk_comp_cmp); | |
341 | if (ssl_comp_methods != NULL) | |
7ba666fa | 342 | { |
675f605d BM |
343 | comp=(SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP)); |
344 | if (comp != NULL) | |
7ba666fa | 345 | { |
675f605d BM |
346 | comp->method=COMP_zlib(); |
347 | if (comp->method | |
348 | && comp->method->type == NID_undef) | |
349 | OPENSSL_free(comp); | |
350 | else | |
351 | { | |
352 | comp->id=SSL_COMP_ZLIB_IDX; | |
353 | comp->name=comp->method->name; | |
354 | sk_SSL_COMP_push(ssl_comp_methods,comp); | |
355 | } | |
7ba666fa RL |
356 | } |
357 | } | |
675f605d | 358 | MemCheck_on(); |
7ba666fa | 359 | } |
7ba666fa | 360 | } |
675f605d BM |
361 | |
362 | if (got_write_lock) | |
363 | CRYPTO_w_unlock(CRYPTO_LOCK_SSL); | |
364 | else | |
365 | CRYPTO_r_unlock(CRYPTO_LOCK_SSL); | |
7ba666fa | 366 | } |
09b6c2ef | 367 | #endif |
7ba666fa | 368 | |
0821bcd4 | 369 | int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc, |
6b691a5c | 370 | const EVP_MD **md, SSL_COMP **comp) |
d02b48c6 RE |
371 | { |
372 | int i; | |
413c4f45 | 373 | SSL_CIPHER *c; |
d02b48c6 | 374 | |
413c4f45 | 375 | c=s->cipher; |
d02b48c6 | 376 | if (c == NULL) return(0); |
413c4f45 MC |
377 | if (comp != NULL) |
378 | { | |
379 | SSL_COMP ctmp; | |
09b6c2ef | 380 | #ifndef OPENSSL_NO_COMP |
7ba666fa | 381 | load_builtin_compressions(); |
09b6c2ef | 382 | #endif |
413c4f45 | 383 | |
7ba666fa RL |
384 | *comp=NULL; |
385 | ctmp.id=s->compress_meth; | |
386 | if (ssl_comp_methods != NULL) | |
387 | { | |
f73e07cf | 388 | i=sk_SSL_COMP_find(ssl_comp_methods,&ctmp); |
413c4f45 | 389 | if (i >= 0) |
f73e07cf | 390 | *comp=sk_SSL_COMP_value(ssl_comp_methods,i); |
413c4f45 MC |
391 | else |
392 | *comp=NULL; | |
393 | } | |
394 | } | |
395 | ||
396 | if ((enc == NULL) || (md == NULL)) return(0); | |
d02b48c6 | 397 | |
52b8dad8 | 398 | switch (c->algorithm_enc) |
d02b48c6 RE |
399 | { |
400 | case SSL_DES: | |
401 | i=SSL_ENC_DES_IDX; | |
402 | break; | |
403 | case SSL_3DES: | |
404 | i=SSL_ENC_3DES_IDX; | |
405 | break; | |
406 | case SSL_RC4: | |
407 | i=SSL_ENC_RC4_IDX; | |
408 | break; | |
409 | case SSL_RC2: | |
410 | i=SSL_ENC_RC2_IDX; | |
411 | break; | |
412 | case SSL_IDEA: | |
413 | i=SSL_ENC_IDEA_IDX; | |
414 | break; | |
415 | case SSL_eNULL: | |
416 | i=SSL_ENC_NULL_IDX; | |
417 | break; | |
52b8dad8 BM |
418 | case SSL_AES128: |
419 | i=SSL_ENC_AES128_IDX; | |
259810e0 | 420 | break; |
52b8dad8 BM |
421 | case SSL_AES256: |
422 | i=SSL_ENC_AES256_IDX; | |
423 | break; | |
424 | case SSL_CAMELLIA128: | |
425 | i=SSL_ENC_CAMELLIA128_IDX; | |
426 | break; | |
427 | case SSL_CAMELLIA256: | |
428 | i=SSL_ENC_CAMELLIA256_IDX; | |
f3dea9a5 | 429 | break; |
d02b48c6 RE |
430 | default: |
431 | i= -1; | |
432 | break; | |
433 | } | |
434 | ||
435 | if ((i < 0) || (i > SSL_ENC_NUM_IDX)) | |
436 | *enc=NULL; | |
437 | else | |
438 | { | |
439 | if (i == SSL_ENC_NULL_IDX) | |
440 | *enc=EVP_enc_null(); | |
441 | else | |
442 | *enc=ssl_cipher_methods[i]; | |
443 | } | |
444 | ||
52b8dad8 | 445 | switch (c->algorithm_mac) |
d02b48c6 RE |
446 | { |
447 | case SSL_MD5: | |
448 | i=SSL_MD_MD5_IDX; | |
449 | break; | |
d02b48c6 RE |
450 | case SSL_SHA1: |
451 | i=SSL_MD_SHA1_IDX; | |
452 | break; | |
453 | default: | |
454 | i= -1; | |
455 | break; | |
456 | } | |
457 | if ((i < 0) || (i > SSL_MD_NUM_IDX)) | |
458 | *md=NULL; | |
459 | else | |
460 | *md=ssl_digest_methods[i]; | |
461 | ||
462 | if ((*enc != NULL) && (*md != NULL)) | |
463 | return(1); | |
464 | else | |
465 | return(0); | |
466 | } | |
467 | ||
58964a49 RE |
468 | #define ITEM_SEP(a) \ |
469 | (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ',')) | |
470 | ||
6b691a5c UM |
471 | static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr, |
472 | CIPHER_ORDER **tail) | |
58964a49 RE |
473 | { |
474 | if (curr == *tail) return; | |
475 | if (curr == *head) | |
476 | *head=curr->next; | |
477 | if (curr->prev != NULL) | |
478 | curr->prev->next=curr->next; | |
479 | if (curr->next != NULL) /* should always be true */ | |
480 | curr->next->prev=curr->prev; | |
481 | (*tail)->next=curr; | |
482 | curr->prev= *tail; | |
483 | curr->next=NULL; | |
484 | *tail=curr; | |
485 | } | |
486 | ||
52b8dad8 | 487 | static void ssl_cipher_get_disabled(unsigned long *mkey, unsigned long *auth, unsigned long *enc, unsigned long *mac, unsigned long *ssl) |
d02b48c6 | 488 | { |
52b8dad8 BM |
489 | *mkey = 0; |
490 | *auth = 0; | |
491 | *enc = 0; | |
492 | *mac = 0; | |
493 | *ssl = 0; | |
d02b48c6 | 494 | |
bc36ee62 | 495 | #ifdef OPENSSL_NO_RSA |
52b8dad8 BM |
496 | *mkey |= SSL_kRSA; |
497 | *auth |= SSL_aRSA; | |
d02b48c6 | 498 | #endif |
bc36ee62 | 499 | #ifdef OPENSSL_NO_DSA |
52b8dad8 | 500 | *auth |= SSL_aDSS; |
d02b48c6 | 501 | #endif |
52b8dad8 BM |
502 | *mkey |= SSL_kDHr|SSL_kDHd; /* no such ciphersuites supported! */ |
503 | *auth |= SSL_aDH; | |
bc36ee62 | 504 | #ifdef OPENSSL_NO_DH |
52b8dad8 BM |
505 | *mkey |= SSL_kDHr|SSL_kDHd|SSL_kEDH; |
506 | *auth |= SSL_aDH; | |
d02b48c6 | 507 | #endif |
bc36ee62 | 508 | #ifdef OPENSSL_NO_KRB5 |
52b8dad8 BM |
509 | *mkey |= SSL_kKRB5; |
510 | *auth |= SSL_aKRB5; | |
f9b3bff6 | 511 | #endif |
89bbe14c | 512 | #ifdef OPENSSL_NO_ECDSA |
52b8dad8 | 513 | *auth |= SSL_aECDSA; |
89bbe14c | 514 | #endif |
ea262260 | 515 | #ifdef OPENSSL_NO_ECDH |
52b8dad8 BM |
516 | *mkey |= SSL_kECDHe|SSL_kECDHr; |
517 | *auth |= SSL_aECDH; | |
ea262260 | 518 | #endif |
ddac1974 | 519 | #ifdef OPENSSL_NO_PSK |
52b8dad8 BM |
520 | *mkey |= SSL_kPSK; |
521 | *auth |= SSL_aPSK; | |
ddac1974 | 522 | #endif |
988788f6 | 523 | #ifdef SSL_FORBID_ENULL |
52b8dad8 | 524 | *enc |= SSL_eNULL; |
d02b48c6 RE |
525 | #endif |
526 | ||
52b8dad8 BM |
527 | *enc |= (ssl_cipher_methods[SSL_ENC_DES_IDX ] == NULL) ? SSL_DES :0; |
528 | *enc |= (ssl_cipher_methods[SSL_ENC_3DES_IDX] == NULL) ? SSL_3DES:0; | |
529 | *enc |= (ssl_cipher_methods[SSL_ENC_RC4_IDX ] == NULL) ? SSL_RC4 :0; | |
530 | *enc |= (ssl_cipher_methods[SSL_ENC_RC2_IDX ] == NULL) ? SSL_RC2 :0; | |
531 | *enc |= (ssl_cipher_methods[SSL_ENC_IDEA_IDX] == NULL) ? SSL_IDEA:0; | |
532 | *enc |= (ssl_cipher_methods[SSL_ENC_AES128_IDX] == NULL) ? SSL_AES128:0; | |
533 | *enc |= (ssl_cipher_methods[SSL_ENC_AES256_IDX] == NULL) ? SSL_AES256:0; | |
534 | *enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX] == NULL) ? SSL_CAMELLIA128:0; | |
535 | *enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX] == NULL) ? SSL_CAMELLIA256:0; | |
536 | ||
537 | *mac |= (ssl_digest_methods[SSL_MD_MD5_IDX ] == NULL) ? SSL_MD5 :0; | |
538 | *mac |= (ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL) ? SSL_SHA1:0; | |
018e57c7 DSH |
539 | } |
540 | ||
541 | static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method, | |
52b8dad8 BM |
542 | int num_of_ciphers, |
543 | unsigned long disabled_mkey, unsigned long disabled_auth, | |
544 | unsigned long disabled_enc, unsigned long disabled_mac, | |
545 | unsigned long disabled_ssl, | |
546 | CIPHER_ORDER *co_list, | |
547 | CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p) | |
018e57c7 | 548 | { |
3822740c | 549 | int i, co_list_num; |
018e57c7 DSH |
550 | SSL_CIPHER *c; |
551 | ||
552 | /* | |
553 | * We have num_of_ciphers descriptions compiled in, depending on the | |
554 | * method selected (SSLv2 and/or SSLv3, TLSv1 etc). | |
555 | * These will later be sorted in a linked list with at most num | |
556 | * entries. | |
557 | */ | |
58964a49 | 558 | |
d02b48c6 | 559 | /* Get the initial list of ciphers */ |
3822740c | 560 | co_list_num = 0; /* actual count of ciphers */ |
018e57c7 | 561 | for (i = 0; i < num_of_ciphers; i++) |
d02b48c6 | 562 | { |
018e57c7 | 563 | c = ssl_method->get_cipher(i); |
d02b48c6 | 564 | /* drop those that use any of that is not available */ |
52b8dad8 BM |
565 | if ((c != NULL) && c->valid && |
566 | !(c->algorithm_mkey & disabled_mkey) && | |
567 | !(c->algorithm_auth & disabled_auth) && | |
568 | !(c->algorithm_enc & disabled_enc) && | |
569 | !(c->algorithm_mac & disabled_mac) && | |
570 | !(c->algorithm_ssl & disabled_ssl)) | |
d02b48c6 | 571 | { |
3822740c RL |
572 | co_list[co_list_num].cipher = c; |
573 | co_list[co_list_num].next = NULL; | |
574 | co_list[co_list_num].prev = NULL; | |
575 | co_list[co_list_num].active = 0; | |
576 | co_list_num++; | |
f9b3bff6 | 577 | #ifdef KSSL_DEBUG |
52b8dad8 | 578 | printf("\t%d: %s %lx %lx %lx\n",i,c->name,c->id,c->algorithm_mkey,c->algorithm_auth); |
f9b3bff6 | 579 | #endif /* KSSL_DEBUG */ |
018e57c7 | 580 | /* |
d02b48c6 | 581 | if (!sk_push(ca_list,(char *)c)) goto err; |
018e57c7 | 582 | */ |
d02b48c6 RE |
583 | } |
584 | } | |
018e57c7 DSH |
585 | |
586 | /* | |
587 | * Prepare linked list from list entries | |
588 | */ | |
3822740c | 589 | for (i = 1; i < co_list_num - 1; i++) |
58964a49 | 590 | { |
3822740c RL |
591 | co_list[i].prev = &(co_list[i-1]); |
592 | co_list[i].next = &(co_list[i+1]); | |
58964a49 | 593 | } |
3822740c | 594 | if (co_list_num > 0) |
58964a49 | 595 | { |
3822740c | 596 | (*head_p) = &(co_list[0]); |
018e57c7 | 597 | (*head_p)->prev = NULL; |
3822740c RL |
598 | (*head_p)->next = &(co_list[1]); |
599 | (*tail_p) = &(co_list[co_list_num - 1]); | |
600 | (*tail_p)->prev = &(co_list[co_list_num - 2]); | |
018e57c7 | 601 | (*tail_p)->next = NULL; |
58964a49 | 602 | } |
018e57c7 | 603 | } |
d02b48c6 | 604 | |
018e57c7 | 605 | static void ssl_cipher_collect_aliases(SSL_CIPHER **ca_list, |
52b8dad8 BM |
606 | int num_of_group_aliases, |
607 | unsigned long disabled_mkey, unsigned long disabled_auth, | |
608 | unsigned long disabled_enc, unsigned long disabled_mac, | |
609 | unsigned long disabled_ssl, | |
018e57c7 DSH |
610 | CIPHER_ORDER *head) |
611 | { | |
612 | CIPHER_ORDER *ciph_curr; | |
613 | SSL_CIPHER **ca_curr; | |
614 | int i; | |
52b8dad8 BM |
615 | unsigned long mask_mkey = ~disabled_mkey; |
616 | unsigned long mask_auth = ~disabled_auth; | |
617 | unsigned long mask_enc = ~disabled_enc; | |
618 | unsigned long mask_mac = ~disabled_mac; | |
619 | unsigned long mask_ssl = ~disabled_ssl; | |
d02b48c6 | 620 | |
018e57c7 DSH |
621 | /* |
622 | * First, add the real ciphers as already collected | |
623 | */ | |
624 | ciph_curr = head; | |
625 | ca_curr = ca_list; | |
626 | while (ciph_curr != NULL) | |
d02b48c6 | 627 | { |
018e57c7 DSH |
628 | *ca_curr = ciph_curr->cipher; |
629 | ca_curr++; | |
630 | ciph_curr = ciph_curr->next; | |
d02b48c6 RE |
631 | } |
632 | ||
018e57c7 DSH |
633 | /* |
634 | * Now we add the available ones from the cipher_aliases[] table. | |
09e20e0b BM |
635 | * They represent either one or more algorithms, some of which |
636 | * in any affected category must be supported (set in enabled_mask), | |
89bbe14c | 637 | * or represent a cipher strength value (will be added in any case because algorithms=0). |
018e57c7 DSH |
638 | */ |
639 | for (i = 0; i < num_of_group_aliases; i++) | |
640 | { | |
52b8dad8 BM |
641 | unsigned long algorithm_mkey = cipher_aliases[i].algorithm_mkey; |
642 | unsigned long algorithm_auth = cipher_aliases[i].algorithm_auth; | |
643 | unsigned long algorithm_enc = cipher_aliases[i].algorithm_enc; | |
644 | unsigned long algorithm_mac = cipher_aliases[i].algorithm_mac; | |
645 | unsigned long algorithm_ssl = cipher_aliases[i].algorithm_ssl; | |
646 | ||
647 | if (algorithm_mkey) | |
648 | if ((algorithm_mkey & mask_mkey) == 0) | |
649 | continue; | |
650 | ||
651 | if (algorithm_auth) | |
652 | if ((algorithm_auth & mask_auth) == 0) | |
09e20e0b | 653 | continue; |
09e20e0b | 654 | |
52b8dad8 BM |
655 | if (algorithm_enc) |
656 | if ((algorithm_enc & mask_enc) == 0) | |
09e20e0b | 657 | continue; |
09e20e0b | 658 | |
52b8dad8 BM |
659 | if (algorithm_mac) |
660 | if ((algorithm_mac & mask_mac) == 0) | |
09e20e0b | 661 | continue; |
09e20e0b | 662 | |
52b8dad8 BM |
663 | if (algorithm_ssl) |
664 | if ((algorithm_ssl & mask_ssl) == 0) | |
09e20e0b | 665 | continue; |
09e20e0b BM |
666 | |
667 | *ca_curr = (SSL_CIPHER *)(cipher_aliases + i); | |
668 | ca_curr++; | |
018e57c7 | 669 | } |
d02b48c6 | 670 | |
018e57c7 DSH |
671 | *ca_curr = NULL; /* end of list */ |
672 | } | |
d02b48c6 | 673 | |
52b8dad8 BM |
674 | static void ssl_cipher_apply_rule(unsigned long cipher_id, |
675 | unsigned long alg_mkey, unsigned long alg_auth, | |
676 | unsigned long alg_enc, unsigned long alg_mac, | |
677 | unsigned long alg_ssl, | |
678 | unsigned long algo_strength, | |
a717831d | 679 | int rule, int strength_bits, |
018e57c7 DSH |
680 | CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p) |
681 | { | |
682 | CIPHER_ORDER *head, *tail, *curr, *curr2, *tail2; | |
683 | SSL_CIPHER *cp; | |
018e57c7 DSH |
684 | |
685 | #ifdef CIPHER_DEBUG | |
52b8dad8 BM |
686 | printf("Applying rule %d with %08lx/%08lx/%08lx/%08lx/%08lx %08lx (%d)\n", |
687 | rule, alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength, strength_bits); | |
018e57c7 | 688 | #endif |
d02b48c6 | 689 | |
018e57c7 DSH |
690 | curr = head = *head_p; |
691 | curr2 = head; | |
692 | tail2 = tail = *tail_p; | |
d02b48c6 RE |
693 | for (;;) |
694 | { | |
018e57c7 DSH |
695 | if ((curr == NULL) || (curr == tail2)) break; |
696 | curr = curr2; | |
697 | curr2 = curr->next; | |
698 | ||
699 | cp = curr->cipher; | |
700 | ||
52b8dad8 BM |
701 | /* |
702 | * Selection criteria is either the value of strength_bits | |
703 | * or the algorithms used. | |
704 | */ | |
705 | if (strength_bits >= 0) | |
ba1ba5f0 | 706 | { |
52b8dad8 | 707 | if (strength_bits != cp->strength_bits) |
ba1ba5f0 DSH |
708 | continue; |
709 | } | |
52b8dad8 | 710 | else |
018e57c7 | 711 | { |
018e57c7 | 712 | #ifdef CIPHER_DEBUG |
52b8dad8 | 713 | 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 | 714 | #endif |
52b8dad8 BM |
715 | |
716 | if (alg_mkey && !(alg_mkey & cp->algorithm_mkey)) | |
717 | continue; | |
718 | if (alg_auth && !(alg_auth & cp->algorithm_auth)) | |
719 | continue; | |
720 | if (alg_enc && !(alg_enc & cp->algorithm_enc)) | |
721 | continue; | |
722 | if (alg_mac && !(alg_mac & cp->algorithm_mac)) | |
723 | continue; | |
724 | if (alg_ssl && !(alg_ssl & cp->algorithm_ssl)) | |
725 | continue; | |
726 | if ((algo_strength & SSL_EXP_MASK) && !(algo_strength & SSL_EXP_MASK & cp->algo_strength)) | |
727 | continue; | |
728 | if ((algo_strength & SSL_STRONG_MASK) && !(algo_strength & SSL_STRONG_MASK & cp->algo_strength)) | |
729 | continue; | |
018e57c7 | 730 | } |
018e57c7 DSH |
731 | |
732 | #ifdef CIPHER_DEBUG | |
733 | printf("Action = %d\n", rule); | |
734 | #endif | |
735 | ||
736 | /* add the cipher if it has not been added yet. */ | |
737 | if (rule == CIPHER_ADD) | |
738 | { | |
739 | if (!curr->active) | |
740 | { | |
741 | ll_append_tail(&head, curr, &tail); | |
742 | curr->active = 1; | |
743 | } | |
744 | } | |
745 | /* Move the added cipher to this location */ | |
746 | else if (rule == CIPHER_ORD) | |
747 | { | |
748 | if (curr->active) | |
749 | { | |
750 | ll_append_tail(&head, curr, &tail); | |
751 | } | |
752 | } | |
753 | else if (rule == CIPHER_DEL) | |
754 | curr->active = 0; | |
755 | else if (rule == CIPHER_KILL) | |
756 | { | |
757 | if (head == curr) | |
758 | head = curr->next; | |
759 | else | |
760 | curr->prev->next = curr->next; | |
761 | if (tail == curr) | |
762 | tail = curr->prev; | |
763 | curr->active = 0; | |
764 | if (curr->next != NULL) | |
765 | curr->next->prev = curr->prev; | |
766 | if (curr->prev != NULL) | |
767 | curr->prev->next = curr->next; | |
768 | curr->next = NULL; | |
769 | curr->prev = NULL; | |
770 | } | |
771 | } | |
772 | ||
773 | *head_p = head; | |
774 | *tail_p = tail; | |
775 | } | |
776 | ||
a717831d | 777 | static int ssl_cipher_strength_sort(CIPHER_ORDER **head_p, |
3822740c | 778 | CIPHER_ORDER **tail_p) |
018e57c7 DSH |
779 | { |
780 | int max_strength_bits, i, *number_uses; | |
781 | CIPHER_ORDER *curr; | |
782 | ||
783 | /* | |
784 | * This routine sorts the ciphers with descending strength. The sorting | |
785 | * must keep the pre-sorted sequence, so we apply the normal sorting | |
786 | * routine as '+' movement to the end of the list. | |
787 | */ | |
788 | max_strength_bits = 0; | |
789 | curr = *head_p; | |
790 | while (curr != NULL) | |
791 | { | |
792 | if (curr->active && | |
793 | (curr->cipher->strength_bits > max_strength_bits)) | |
794 | max_strength_bits = curr->cipher->strength_bits; | |
795 | curr = curr->next; | |
796 | } | |
797 | ||
26a3a48d | 798 | number_uses = OPENSSL_malloc((max_strength_bits + 1) * sizeof(int)); |
018e57c7 | 799 | if (!number_uses) |
52b8dad8 | 800 | { |
018e57c7 DSH |
801 | SSLerr(SSL_F_SSL_CIPHER_STRENGTH_SORT,ERR_R_MALLOC_FAILURE); |
802 | return(0); | |
52b8dad8 | 803 | } |
018e57c7 DSH |
804 | memset(number_uses, 0, (max_strength_bits + 1) * sizeof(int)); |
805 | ||
806 | /* | |
807 | * Now find the strength_bits values actually used | |
808 | */ | |
809 | curr = *head_p; | |
810 | while (curr != NULL) | |
811 | { | |
812 | if (curr->active) | |
813 | number_uses[curr->cipher->strength_bits]++; | |
814 | curr = curr->next; | |
815 | } | |
018e57c7 DSH |
816 | /* |
817 | * Go through the list of used strength_bits values in descending | |
64287002 | 818 | * order. |
018e57c7 | 819 | */ |
018e57c7 | 820 | for (i = max_strength_bits; i >= 0; i--) |
018e57c7 | 821 | if (number_uses[i] > 0) |
52b8dad8 | 822 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ORD, i, head_p, tail_p); |
018e57c7 | 823 | |
26a3a48d | 824 | OPENSSL_free(number_uses); |
018e57c7 DSH |
825 | return(1); |
826 | } | |
827 | ||
828 | static int ssl_cipher_process_rulestr(const char *rule_str, | |
a717831d BM |
829 | CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p, |
830 | SSL_CIPHER **ca_list) | |
018e57c7 | 831 | { |
52b8dad8 | 832 | unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength; |
018e57c7 DSH |
833 | const char *l, *start, *buf; |
834 | int j, multi, found, rule, retval, ok, buflen; | |
52b8dad8 | 835 | unsigned long cipher_id = 0; |
018e57c7 | 836 | char ch; |
58964a49 | 837 | |
018e57c7 DSH |
838 | retval = 1; |
839 | l = rule_str; | |
840 | for (;;) | |
841 | { | |
842 | ch = *l; | |
58964a49 | 843 | |
018e57c7 DSH |
844 | if (ch == '\0') |
845 | break; /* done */ | |
d02b48c6 | 846 | if (ch == '-') |
018e57c7 | 847 | { rule = CIPHER_DEL; l++; } |
d02b48c6 | 848 | else if (ch == '+') |
018e57c7 | 849 | { rule = CIPHER_ORD; l++; } |
d02b48c6 | 850 | else if (ch == '!') |
018e57c7 DSH |
851 | { rule = CIPHER_KILL; l++; } |
852 | else if (ch == '@') | |
853 | { rule = CIPHER_SPECIAL; l++; } | |
854 | else | |
855 | { rule = CIPHER_ADD; } | |
d02b48c6 | 856 | |
58964a49 | 857 | if (ITEM_SEP(ch)) |
d02b48c6 RE |
858 | { |
859 | l++; | |
860 | continue; | |
861 | } | |
018e57c7 | 862 | |
52b8dad8 BM |
863 | alg_mkey = 0; |
864 | alg_auth = 0; | |
865 | alg_enc = 0; | |
866 | alg_mac = 0; | |
867 | alg_ssl = 0; | |
868 | algo_strength = 0; | |
d02b48c6 RE |
869 | |
870 | start=l; | |
871 | for (;;) | |
872 | { | |
018e57c7 DSH |
873 | ch = *l; |
874 | buf = l; | |
875 | buflen = 0; | |
ca570cfd | 876 | #ifndef CHARSET_EBCDIC |
d02b48c6 RE |
877 | while ( ((ch >= 'A') && (ch <= 'Z')) || |
878 | ((ch >= '0') && (ch <= '9')) || | |
879 | ((ch >= 'a') && (ch <= 'z')) || | |
880 | (ch == '-')) | |
ca570cfd UM |
881 | #else |
882 | while ( isalnum(ch) || (ch == '-')) | |
883 | #endif | |
d02b48c6 | 884 | { |
018e57c7 DSH |
885 | ch = *(++l); |
886 | buflen++; | |
d02b48c6 | 887 | } |
018e57c7 DSH |
888 | |
889 | if (buflen == 0) | |
890 | { | |
891 | /* | |
4013f3bf | 892 | * We hit something we cannot deal with, |
657e60fa | 893 | * it is no command or separator nor |
018e57c7 DSH |
894 | * alphanumeric, so we call this an error. |
895 | */ | |
896 | SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, | |
897 | SSL_R_INVALID_COMMAND); | |
898 | retval = found = 0; | |
899 | l++; | |
900 | break; | |
901 | } | |
902 | ||
903 | if (rule == CIPHER_SPECIAL) | |
904 | { | |
4013f3bf | 905 | found = 0; /* unused -- avoid compiler warning */ |
018e57c7 DSH |
906 | break; /* special treatment */ |
907 | } | |
d02b48c6 RE |
908 | |
909 | /* check for multi-part specification */ | |
58964a49 RE |
910 | if (ch == '+') |
911 | { | |
912 | multi=1; | |
913 | l++; | |
914 | } | |
915 | else | |
916 | multi=0; | |
d02b48c6 | 917 | |
018e57c7 | 918 | /* |
4013f3bf | 919 | * Now search for the cipher alias in the ca_list. Be careful |
018e57c7 DSH |
920 | * with the strncmp, because the "buflen" limitation |
921 | * will make the rule "ADH:SOME" and the cipher | |
922 | * "ADH-MY-CIPHER" look like a match for buflen=3. | |
4013f3bf BM |
923 | * So additionally check whether the cipher name found |
924 | * has the correct length. We can save a strlen() call: | |
018e57c7 | 925 | * just checking for the '\0' at the right place is |
f65a7578 LJ |
926 | * sufficient, we have to strncmp() anyway. (We cannot |
927 | * use strcmp(), because buf is not '\0' terminated.) | |
018e57c7 | 928 | */ |
52b8dad8 BM |
929 | j = found = 0; |
930 | cipher_id = 0; | |
931 | while (ca_list[j]) | |
018e57c7 | 932 | { |
f65a7578 LJ |
933 | if (!strncmp(buf, ca_list[j]->name, buflen) && |
934 | (ca_list[j]->name[buflen] == '\0')) | |
018e57c7 DSH |
935 | { |
936 | found = 1; | |
937 | break; | |
938 | } | |
939 | else | |
940 | j++; | |
941 | } | |
52b8dad8 | 942 | |
018e57c7 DSH |
943 | if (!found) |
944 | break; /* ignore this entry */ | |
945 | ||
52b8dad8 BM |
946 | if (ca_list[j]->algorithm_mkey) |
947 | { | |
948 | if (alg_mkey) | |
949 | { | |
950 | alg_mkey &= ca_list[j]->algorithm_mkey; | |
951 | if (!alg_mkey) { found = 0; break; } | |
952 | } | |
953 | else | |
954 | alg_mkey = ca_list[j]->algorithm_mkey; | |
955 | } | |
956 | ||
957 | if (ca_list[j]->algorithm_auth) | |
958 | { | |
959 | if (alg_auth) | |
960 | { | |
961 | alg_auth &= ca_list[j]->algorithm_auth; | |
962 | if (!alg_auth) { found = 0; break; } | |
963 | } | |
964 | else | |
965 | alg_auth = ca_list[j]->algorithm_auth; | |
966 | } | |
967 | ||
968 | if (ca_list[j]->algorithm_enc) | |
969 | { | |
970 | if (alg_enc) | |
971 | { | |
972 | alg_enc &= ca_list[j]->algorithm_enc; | |
973 | if (!alg_enc) { found = 0; break; } | |
974 | } | |
975 | else | |
976 | alg_enc = ca_list[j]->algorithm_enc; | |
977 | } | |
978 | ||
979 | if (ca_list[j]->algorithm_mac) | |
980 | { | |
981 | if (alg_mac) | |
982 | { | |
983 | alg_mac &= ca_list[j]->algorithm_mac; | |
984 | if (!alg_mac) { found = 0; break; } | |
985 | } | |
986 | else | |
987 | alg_mac = ca_list[j]->algorithm_mac; | |
988 | } | |
989 | ||
990 | if (ca_list[j]->algo_strength & SSL_EXP_MASK) | |
991 | { | |
992 | if (algo_strength & SSL_EXP_MASK) | |
993 | { | |
994 | algo_strength &= (ca_list[j]->algo_strength & SSL_EXP_MASK) | ~SSL_EXP_MASK; | |
995 | if (!(algo_strength & SSL_EXP_MASK)) { found = 0; break; } | |
996 | } | |
997 | else | |
998 | algo_strength |= ca_list[j]->algo_strength & SSL_EXP_MASK; | |
999 | } | |
1000 | ||
1001 | if (ca_list[j]->algo_strength & SSL_STRONG_MASK) | |
1002 | { | |
1003 | if (algo_strength & SSL_STRONG_MASK) | |
1004 | { | |
1005 | algo_strength &= (ca_list[j]->algo_strength & SSL_STRONG_MASK) | ~SSL_STRONG_MASK; | |
1006 | if (!(algo_strength & SSL_STRONG_MASK)) { found = 0; break; } | |
1007 | } | |
1008 | else | |
1009 | algo_strength |= ca_list[j]->algo_strength & SSL_STRONG_MASK; | |
1010 | } | |
1011 | ||
ed65f7dc BM |
1012 | if (ca_list[j]->valid) |
1013 | { | |
52b8dad8 BM |
1014 | /* explicit ciphersuite found; its protocol version |
1015 | * does not become part of the search pattern!*/ | |
1016 | ||
ed65f7dc | 1017 | cipher_id = ca_list[j]->id; |
ed65f7dc | 1018 | } |
52b8dad8 BM |
1019 | else |
1020 | { | |
1021 | /* not an explicit ciphersuite; only in this case, the | |
1022 | * protocol version is considered part of the search pattern */ | |
ed65f7dc | 1023 | |
52b8dad8 BM |
1024 | if (ca_list[j]->algorithm_ssl) |
1025 | { | |
1026 | if (alg_ssl) | |
1027 | { | |
1028 | alg_ssl &= ca_list[j]->algorithm_ssl; | |
1029 | if (!alg_ssl) { found = 0; break; } | |
1030 | } | |
1031 | else | |
1032 | alg_ssl = ca_list[j]->algorithm_ssl; | |
1033 | } | |
1034 | } | |
1035 | ||
d02b48c6 RE |
1036 | if (!multi) break; |
1037 | } | |
018e57c7 | 1038 | |
4013f3bf BM |
1039 | /* |
1040 | * Ok, we have the rule, now apply it | |
1041 | */ | |
1042 | if (rule == CIPHER_SPECIAL) | |
1043 | { /* special command */ | |
1044 | ok = 0; | |
1045 | if ((buflen == 8) && | |
1046 | !strncmp(buf, "STRENGTH", 8)) | |
a717831d | 1047 | ok = ssl_cipher_strength_sort(head_p, tail_p); |
4013f3bf BM |
1048 | else |
1049 | SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, | |
1050 | SSL_R_INVALID_COMMAND); | |
1051 | if (ok == 0) | |
1052 | retval = 0; | |
018e57c7 | 1053 | /* |
4013f3bf BM |
1054 | * We do not support any "multi" options |
1055 | * together with "@", so throw away the | |
1056 | * rest of the command, if any left, until | |
1057 | * end or ':' is found. | |
018e57c7 | 1058 | */ |
52b8dad8 | 1059 | while ((*l != '\0') && !ITEM_SEP(*l)) |
4013f3bf BM |
1060 | l++; |
1061 | } | |
1062 | else if (found) | |
1063 | { | |
52b8dad8 BM |
1064 | ssl_cipher_apply_rule(cipher_id, |
1065 | alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength, | |
1066 | rule, -1, head_p, tail_p); | |
4013f3bf BM |
1067 | } |
1068 | else | |
1069 | { | |
52b8dad8 | 1070 | while ((*l != '\0') && !ITEM_SEP(*l)) |
4013f3bf BM |
1071 | l++; |
1072 | } | |
1073 | if (*l == '\0') break; /* done */ | |
d02b48c6 RE |
1074 | } |
1075 | ||
018e57c7 DSH |
1076 | return(retval); |
1077 | } | |
1078 | ||
1079 | STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method, | |
1080 | STACK_OF(SSL_CIPHER) **cipher_list, | |
1081 | STACK_OF(SSL_CIPHER) **cipher_list_by_id, | |
1082 | const char *rule_str) | |
1083 | { | |
1084 | int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases; | |
52b8dad8 | 1085 | unsigned long disabled_mkey, disabled_auth, disabled_enc, disabled_mac, disabled_ssl; |
f0747cd9 | 1086 | STACK_OF(SSL_CIPHER) *cipherstack, *tmp_cipher_list; |
018e57c7 | 1087 | const char *rule_p; |
3822740c | 1088 | CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr; |
018e57c7 DSH |
1089 | SSL_CIPHER **ca_list = NULL; |
1090 | ||
1091 | /* | |
1092 | * Return with error if nothing to do. | |
1093 | */ | |
f0747cd9 NL |
1094 | if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL) |
1095 | return NULL; | |
018e57c7 | 1096 | |
018e57c7 DSH |
1097 | /* |
1098 | * To reduce the work to do we only want to process the compiled | |
1099 | * in algorithms, so we first get the mask of disabled ciphers. | |
1100 | */ | |
52b8dad8 | 1101 | ssl_cipher_get_disabled(&disabled_mkey, &disabled_auth, &disabled_enc, &disabled_mac, &disabled_ssl); |
018e57c7 DSH |
1102 | |
1103 | /* | |
1104 | * Now we have to collect the available ciphers from the compiled | |
1105 | * in ciphers. We cannot get more than the number compiled in, so | |
1106 | * it is used for allocation. | |
1107 | */ | |
1108 | num_of_ciphers = ssl_method->num_ciphers(); | |
f9b3bff6 RL |
1109 | #ifdef KSSL_DEBUG |
1110 | printf("ssl_create_cipher_list() for %d ciphers\n", num_of_ciphers); | |
1111 | #endif /* KSSL_DEBUG */ | |
3822740c RL |
1112 | co_list = (CIPHER_ORDER *)OPENSSL_malloc(sizeof(CIPHER_ORDER) * num_of_ciphers); |
1113 | if (co_list == NULL) | |
d02b48c6 | 1114 | { |
018e57c7 DSH |
1115 | SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE); |
1116 | return(NULL); /* Failure */ | |
1117 | } | |
58964a49 | 1118 | |
52b8dad8 BM |
1119 | ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers, |
1120 | disabled_mkey, disabled_auth, disabled_enc, disabled_mac, disabled_ssl, | |
1121 | co_list, &head, &tail); | |
018e57c7 DSH |
1122 | |
1123 | /* | |
1124 | * We also need cipher aliases for selecting based on the rule_str. | |
1125 | * There might be two types of entries in the rule_str: 1) names | |
1126 | * of ciphers themselves 2) aliases for groups of ciphers. | |
1127 | * For 1) we need the available ciphers and for 2) the cipher | |
657e60fa | 1128 | * groups of cipher_aliases added together in one list (otherwise |
018e57c7 DSH |
1129 | * we would be happy with just the cipher_aliases table). |
1130 | */ | |
1131 | num_of_group_aliases = sizeof(cipher_aliases) / sizeof(SSL_CIPHER); | |
1132 | num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1; | |
1133 | ca_list = | |
26a3a48d | 1134 | (SSL_CIPHER **)OPENSSL_malloc(sizeof(SSL_CIPHER *) * num_of_alias_max); |
018e57c7 DSH |
1135 | if (ca_list == NULL) |
1136 | { | |
3822740c | 1137 | OPENSSL_free(co_list); |
018e57c7 DSH |
1138 | SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE); |
1139 | return(NULL); /* Failure */ | |
1140 | } | |
52b8dad8 BM |
1141 | ssl_cipher_collect_aliases(ca_list, num_of_group_aliases, |
1142 | disabled_mkey, disabled_auth, disabled_enc, disabled_mac, disabled_ssl, | |
1143 | head); | |
018e57c7 DSH |
1144 | |
1145 | /* | |
1146 | * If the rule_string begins with DEFAULT, apply the default rule | |
1147 | * before using the (possibly available) additional rules. | |
1148 | */ | |
1149 | ok = 1; | |
1150 | rule_p = rule_str; | |
1151 | if (strncmp(rule_str,"DEFAULT",7) == 0) | |
1152 | { | |
1153 | ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST, | |
a717831d | 1154 | &head, &tail, ca_list); |
018e57c7 DSH |
1155 | rule_p += 7; |
1156 | if (*rule_p == ':') | |
1157 | rule_p++; | |
1158 | } | |
58964a49 | 1159 | |
018e57c7 | 1160 | if (ok && (strlen(rule_p) > 0)) |
a717831d | 1161 | ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list); |
d02b48c6 | 1162 | |
26a3a48d | 1163 | OPENSSL_free(ca_list); /* Not needed anymore */ |
018e57c7 DSH |
1164 | |
1165 | if (!ok) | |
1166 | { /* Rule processing failure */ | |
3822740c | 1167 | OPENSSL_free(co_list); |
018e57c7 DSH |
1168 | return(NULL); |
1169 | } | |
1170 | /* | |
1171 | * Allocate new "cipherstack" for the result, return with error | |
1172 | * if we cannot get one. | |
1173 | */ | |
62324627 | 1174 | if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL) |
018e57c7 | 1175 | { |
3822740c | 1176 | OPENSSL_free(co_list); |
018e57c7 | 1177 | return(NULL); |
d02b48c6 RE |
1178 | } |
1179 | ||
018e57c7 DSH |
1180 | /* |
1181 | * The cipher selection for the list is done. The ciphers are added | |
1182 | * to the resulting precedence to the STACK_OF(SSL_CIPHER). | |
1183 | */ | |
1184 | for (curr = head; curr != NULL; curr = curr->next) | |
d02b48c6 | 1185 | { |
58964a49 | 1186 | if (curr->active) |
d02b48c6 | 1187 | { |
018e57c7 | 1188 | sk_SSL_CIPHER_push(cipherstack, curr->cipher); |
d02b48c6 | 1189 | #ifdef CIPHER_DEBUG |
58964a49 | 1190 | printf("<%s>\n",curr->cipher->name); |
d02b48c6 | 1191 | #endif |
d02b48c6 RE |
1192 | } |
1193 | } | |
3822740c | 1194 | OPENSSL_free(co_list); /* Not needed any longer */ |
018e57c7 | 1195 | |
f0747cd9 NL |
1196 | tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack); |
1197 | if (tmp_cipher_list == NULL) | |
018e57c7 DSH |
1198 | { |
1199 | sk_SSL_CIPHER_free(cipherstack); | |
f0747cd9 | 1200 | return NULL; |
018e57c7 | 1201 | } |
f0747cd9 NL |
1202 | if (*cipher_list != NULL) |
1203 | sk_SSL_CIPHER_free(*cipher_list); | |
1204 | *cipher_list = cipherstack; | |
1205 | if (*cipher_list_by_id != NULL) | |
1206 | sk_SSL_CIPHER_free(*cipher_list_by_id); | |
1207 | *cipher_list_by_id = tmp_cipher_list; | |
f73e07cf | 1208 | sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id,ssl_cipher_ptr_id_cmp); |
d02b48c6 | 1209 | |
018e57c7 | 1210 | return(cipherstack); |
d02b48c6 RE |
1211 | } |
1212 | ||
6b691a5c | 1213 | char *SSL_CIPHER_description(SSL_CIPHER *cipher, char *buf, int len) |
d02b48c6 | 1214 | { |
b1c4fe36 | 1215 | int is_export,pkl,kl; |
f4bfd357 NL |
1216 | const char *ver,*exp_str; |
1217 | const char *kx,*au,*enc,*mac; | |
52b8dad8 | 1218 | unsigned long alg_mkey,alg_auth,alg_enc,alg_mac,alg_ssl,alg2,alg_s; |
f9b3bff6 | 1219 | #ifdef KSSL_DEBUG |
52b8dad8 | 1220 | static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s AL=%lx/%lx/%lx/%lx/%lx\n"; |
f9b3bff6 | 1221 | #else |
f4bfd357 | 1222 | static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n"; |
f9b3bff6 RL |
1223 | #endif /* KSSL_DEBUG */ |
1224 | ||
52b8dad8 BM |
1225 | alg_mkey = cipher->algorithm_mkey; |
1226 | alg_auth = cipher->algorithm_auth; | |
1227 | alg_enc = cipher->algorithm_enc; | |
1228 | alg_mac = cipher->algorithm_mac; | |
1229 | alg_ssl = cipher->algorithm_ssl; | |
1230 | ||
018e57c7 | 1231 | alg_s=cipher->algo_strength; |
d02b48c6 RE |
1232 | alg2=cipher->algorithm2; |
1233 | ||
018e57c7 DSH |
1234 | is_export=SSL_C_IS_EXPORT(cipher); |
1235 | pkl=SSL_C_EXPORT_PKEYLENGTH(cipher); | |
1236 | kl=SSL_C_EXPORT_KEYLENGTH(cipher); | |
d8ec0dcf | 1237 | exp_str=is_export?" export":""; |
ea262260 | 1238 | |
52b8dad8 | 1239 | if (alg_ssl & SSL_SSLV2) |
d02b48c6 | 1240 | ver="SSLv2"; |
52b8dad8 | 1241 | else if (alg_ssl & SSL_SSLV3) |
d02b48c6 RE |
1242 | ver="SSLv3"; |
1243 | else | |
1244 | ver="unknown"; | |
1245 | ||
52b8dad8 | 1246 | switch (alg_mkey) |
d02b48c6 RE |
1247 | { |
1248 | case SSL_kRSA: | |
b1c4fe36 | 1249 | kx=is_export?(pkl == 512 ? "RSA(512)" : "RSA(1024)"):"RSA"; |
d02b48c6 RE |
1250 | break; |
1251 | case SSL_kDHr: | |
1252 | kx="DH/RSA"; | |
1253 | break; | |
1254 | case SSL_kDHd: | |
1255 | kx="DH/DSS"; | |
1256 | break; | |
89bbe14c BM |
1257 | case SSL_kKRB5: |
1258 | kx="KRB5"; | |
d02b48c6 RE |
1259 | break; |
1260 | case SSL_kEDH: | |
b1c4fe36 | 1261 | kx=is_export?(pkl == 512 ? "DH(512)" : "DH(1024)"):"DH"; |
d02b48c6 | 1262 | break; |
89bbe14c BM |
1263 | case SSL_kECDHr: |
1264 | kx="ECDH/RSA"; | |
1265 | break; | |
1266 | case SSL_kECDHe: | |
1267 | kx="ECDH/ECDSA"; | |
1268 | break; | |
1269 | case SSL_kEECDH: | |
1270 | kx="ECDH"; | |
ea262260 | 1271 | break; |
ddac1974 NL |
1272 | case SSL_kPSK: |
1273 | kx="PSK"; | |
1274 | break; | |
d02b48c6 RE |
1275 | default: |
1276 | kx="unknown"; | |
1277 | } | |
1278 | ||
52b8dad8 | 1279 | switch (alg_auth) |
d02b48c6 RE |
1280 | { |
1281 | case SSL_aRSA: | |
1282 | au="RSA"; | |
1283 | break; | |
1284 | case SSL_aDSS: | |
1285 | au="DSS"; | |
1286 | break; | |
1287 | case SSL_aDH: | |
1288 | au="DH"; | |
1289 | break; | |
89bbe14c BM |
1290 | case SSL_aKRB5: |
1291 | au="KRB5"; | |
1292 | break; | |
1293 | case SSL_aECDH: | |
1294 | au="ECDH"; | |
1295 | break; | |
d02b48c6 RE |
1296 | case SSL_aNULL: |
1297 | au="None"; | |
1298 | break; | |
ea262260 BM |
1299 | case SSL_aECDSA: |
1300 | au="ECDSA"; | |
1301 | break; | |
ddac1974 NL |
1302 | case SSL_aPSK: |
1303 | au="PSK"; | |
1304 | break; | |
d02b48c6 RE |
1305 | default: |
1306 | au="unknown"; | |
1307 | break; | |
1308 | } | |
1309 | ||
52b8dad8 | 1310 | switch (alg_enc) |
d02b48c6 RE |
1311 | { |
1312 | case SSL_DES: | |
b1c4fe36 | 1313 | enc=(is_export && kl == 5)?"DES(40)":"DES(56)"; |
d02b48c6 RE |
1314 | break; |
1315 | case SSL_3DES: | |
1316 | enc="3DES(168)"; | |
1317 | break; | |
1318 | case SSL_RC4: | |
b1c4fe36 | 1319 | enc=is_export?(kl == 5 ? "RC4(40)" : "RC4(56)") |
06ab81f9 | 1320 | :((alg2&SSL2_CF_8_BYTE_ENC)?"RC4(64)":"RC4(128)"); |
d02b48c6 RE |
1321 | break; |
1322 | case SSL_RC2: | |
b1c4fe36 | 1323 | enc=is_export?(kl == 5 ? "RC2(40)" : "RC2(56)"):"RC2(128)"; |
d02b48c6 RE |
1324 | break; |
1325 | case SSL_IDEA: | |
1326 | enc="IDEA(128)"; | |
1327 | break; | |
d02b48c6 RE |
1328 | case SSL_eNULL: |
1329 | enc="None"; | |
1330 | break; | |
52b8dad8 BM |
1331 | case SSL_AES128: |
1332 | enc="AES(128)"; | |
259810e0 | 1333 | break; |
52b8dad8 BM |
1334 | case SSL_AES256: |
1335 | enc="AES(256)"; | |
1336 | break; | |
1337 | case SSL_CAMELLIA128: | |
1338 | enc="Camellia(128)"; | |
1339 | break; | |
1340 | case SSL_CAMELLIA256: | |
1341 | enc="Camellia(256)"; | |
f3dea9a5 | 1342 | break; |
d02b48c6 RE |
1343 | default: |
1344 | enc="unknown"; | |
1345 | break; | |
1346 | } | |
1347 | ||
52b8dad8 | 1348 | switch (alg_mac) |
d02b48c6 RE |
1349 | { |
1350 | case SSL_MD5: | |
1351 | mac="MD5"; | |
1352 | break; | |
d02b48c6 RE |
1353 | case SSL_SHA1: |
1354 | mac="SHA1"; | |
1355 | break; | |
1356 | default: | |
1357 | mac="unknown"; | |
1358 | break; | |
1359 | } | |
1360 | ||
1361 | if (buf == NULL) | |
1362 | { | |
063c0502 | 1363 | len=128; |
26a3a48d RL |
1364 | buf=OPENSSL_malloc(len); |
1365 | if (buf == NULL) return("OPENSSL_malloc Error"); | |
d02b48c6 RE |
1366 | } |
1367 | else if (len < 128) | |
1368 | return("Buffer too small"); | |
1369 | ||
f9b3bff6 | 1370 | #ifdef KSSL_DEBUG |
52b8dad8 | 1371 | 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 | 1372 | #else |
d8ec0dcf | 1373 | BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp_str); |
f9b3bff6 | 1374 | #endif /* KSSL_DEBUG */ |
d02b48c6 RE |
1375 | return(buf); |
1376 | } | |
1377 | ||
0821bcd4 | 1378 | char *SSL_CIPHER_get_version(const SSL_CIPHER *c) |
d02b48c6 RE |
1379 | { |
1380 | int i; | |
1381 | ||
58964a49 | 1382 | if (c == NULL) return("(NONE)"); |
d02b48c6 RE |
1383 | i=(int)(c->id>>24L); |
1384 | if (i == 3) | |
58964a49 | 1385 | return("TLSv1/SSLv3"); |
d02b48c6 RE |
1386 | else if (i == 2) |
1387 | return("SSLv2"); | |
1388 | else | |
1389 | return("unknown"); | |
1390 | } | |
1391 | ||
1392 | /* return the actual cipher being used */ | |
0821bcd4 | 1393 | const char *SSL_CIPHER_get_name(const SSL_CIPHER *c) |
d02b48c6 RE |
1394 | { |
1395 | if (c != NULL) | |
1396 | return(c->name); | |
1397 | return("(NONE)"); | |
1398 | } | |
1399 | ||
657e60fa | 1400 | /* number of bits for symmetric cipher */ |
0821bcd4 | 1401 | int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits) |
d02b48c6 | 1402 | { |
018e57c7 | 1403 | int ret=0; |
d02b48c6 RE |
1404 | |
1405 | if (c != NULL) | |
1406 | { | |
018e57c7 DSH |
1407 | if (alg_bits != NULL) *alg_bits = c->alg_bits; |
1408 | ret = c->strength_bits; | |
d02b48c6 | 1409 | } |
d02b48c6 RE |
1410 | return(ret); |
1411 | } | |
1412 | ||
6b691a5c | 1413 | SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n) |
413c4f45 MC |
1414 | { |
1415 | SSL_COMP *ctmp; | |
1416 | int i,nn; | |
1417 | ||
1418 | if ((n == 0) || (sk == NULL)) return(NULL); | |
f73e07cf | 1419 | nn=sk_SSL_COMP_num(sk); |
413c4f45 MC |
1420 | for (i=0; i<nn; i++) |
1421 | { | |
f73e07cf | 1422 | ctmp=sk_SSL_COMP_value(sk,i); |
413c4f45 MC |
1423 | if (ctmp->id == n) |
1424 | return(ctmp); | |
1425 | } | |
1426 | return(NULL); | |
1427 | } | |
1428 | ||
09b6c2ef DSH |
1429 | #ifdef OPENSSL_NO_COMP |
1430 | void *SSL_COMP_get_compression_methods(void) | |
1431 | { | |
1432 | return NULL; | |
1433 | } | |
1434 | int SSL_COMP_add_compression_method(int id, void *cm) | |
1435 | { | |
1436 | return 1; | |
1437 | } | |
1438 | ||
1439 | const char *SSL_COMP_get_name(const void *comp) | |
1440 | { | |
1441 | return NULL; | |
1442 | } | |
1443 | #else | |
6b691a5c | 1444 | STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void) |
413c4f45 | 1445 | { |
7ba666fa | 1446 | load_builtin_compressions(); |
413c4f45 MC |
1447 | return(ssl_comp_methods); |
1448 | } | |
1449 | ||
6b691a5c | 1450 | int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm) |
413c4f45 MC |
1451 | { |
1452 | SSL_COMP *comp; | |
413c4f45 | 1453 | |
9f495243 RL |
1454 | if (cm == NULL || cm->type == NID_undef) |
1455 | return 1; | |
1456 | ||
7ba666fa RL |
1457 | /* According to draft-ietf-tls-compression-04.txt, the |
1458 | compression number ranges should be the following: | |
1459 | ||
1460 | 0 to 63: methods defined by the IETF | |
1461 | 64 to 192: external party methods assigned by IANA | |
1462 | 193 to 255: reserved for private use */ | |
1463 | if (id < 193 || id > 255) | |
1464 | { | |
1465 | SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,SSL_R_COMPRESSION_ID_NOT_WITHIN_PRIVATE_RANGE); | |
1466 | return 0; | |
1467 | } | |
1468 | ||
058123af | 1469 | MemCheck_off(); |
26a3a48d | 1470 | comp=(SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP)); |
413c4f45 MC |
1471 | comp->id=id; |
1472 | comp->method=cm; | |
7ba666fa | 1473 | load_builtin_compressions(); |
82423549 RL |
1474 | if (ssl_comp_methods |
1475 | && !sk_SSL_COMP_find(ssl_comp_methods,comp)) | |
1476 | { | |
1477 | OPENSSL_free(comp); | |
1478 | MemCheck_on(); | |
1479 | SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,SSL_R_DUPLICATE_COMPRESSION_ID); | |
1480 | return(1); | |
1481 | } | |
1482 | else if ((ssl_comp_methods == NULL) | |
7ba666fa | 1483 | || !sk_SSL_COMP_push(ssl_comp_methods,comp)) |
413c4f45 | 1484 | { |
7ba666fa | 1485 | OPENSSL_free(comp); |
058123af | 1486 | MemCheck_on(); |
413c4f45 | 1487 | SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,ERR_R_MALLOC_FAILURE); |
f6e8c19e | 1488 | return(1); |
413c4f45 MC |
1489 | } |
1490 | else | |
058123af RL |
1491 | { |
1492 | MemCheck_on(); | |
f6e8c19e | 1493 | return(0); |
058123af | 1494 | } |
413c4f45 | 1495 | } |
377dcdba RL |
1496 | |
1497 | const char *SSL_COMP_get_name(const COMP_METHOD *comp) | |
1498 | { | |
1499 | if (comp) | |
1500 | return comp->name; | |
1501 | return NULL; | |
1502 | } | |
1503 | ||
09b6c2ef | 1504 | #endif |