summaryrefslogtreecommitdiff
path: root/src/lib/libssl/ssl_ciph.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/libssl/ssl_ciph.c')
-rw-r--r--src/lib/libssl/ssl_ciph.c1747
1 files changed, 0 insertions, 1747 deletions
diff --git a/src/lib/libssl/ssl_ciph.c b/src/lib/libssl/ssl_ciph.c
deleted file mode 100644
index 54ba7ef5b4..0000000000
--- a/src/lib/libssl/ssl_ciph.c
+++ /dev/null
@@ -1,1747 +0,0 @@
1/* ssl/ssl_ciph.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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 */
58/* ====================================================================
59 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
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 */
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 */
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
143#include <stdio.h>
144#include <openssl/objects.h>
145#ifndef OPENSSL_NO_COMP
146#include <openssl/comp.h>
147#endif
148#ifndef OPENSSL_NO_ENGINE
149#include <openssl/engine.h>
150#endif
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
158#define SSL_ENC_NULL_IDX 5
159#define SSL_ENC_AES128_IDX 6
160#define SSL_ENC_AES256_IDX 7
161#define SSL_ENC_CAMELLIA128_IDX 8
162#define SSL_ENC_CAMELLIA256_IDX 9
163#define SSL_ENC_GOST89_IDX 10
164#define SSL_ENC_SEED_IDX 11
165#define SSL_ENC_NUM_IDX 12
166
167
168static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]={
169 NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
170 };
171
172#define SSL_COMP_NULL_IDX 0
173#define SSL_COMP_ZLIB_IDX 1
174#define SSL_COMP_NUM_IDX 2
175
176static STACK_OF(SSL_COMP) *ssl_comp_methods=NULL;
177
178#define SSL_MD_MD5_IDX 0
179#define SSL_MD_SHA1_IDX 1
180#define SSL_MD_GOST94_IDX 2
181#define SSL_MD_GOST89MAC_IDX 3
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
186static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]={
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 */
193static int ssl_mac_pkey_id[SSL_MD_NUM_IDX]={
194 EVP_PKEY_HMAC,EVP_PKEY_HMAC,EVP_PKEY_HMAC,NID_undef
195 };
196
197static int ssl_mac_secret_size[SSL_MD_NUM_IDX]={
198 0,0,0,0
199 };
200
201static 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
206#define CIPHER_ADD 1
207#define CIPHER_KILL 2
208#define CIPHER_DEL 3
209#define CIPHER_ORD 4
210#define CIPHER_SPECIAL 5
211
212typedef struct cipher_order_st
213 {
214 const SSL_CIPHER *cipher;
215 int active;
216 int dead;
217 struct cipher_order_st *next,*prev;
218 } CIPHER_ORDER;
219
220static const SSL_CIPHER cipher_aliases[]={
221 /* "ALL" doesn't include eNULL (must be specifically enabled) */
222 {0,SSL_TXT_ALL,0, 0,0,~SSL_eNULL,0,0,0,0,0,0},
223 /* "COMPLEMENTOFALL" */
224 {0,SSL_TXT_CMPALL,0, 0,0,SSL_eNULL,0,0,0,0,0,0},
225
226 /* "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in ALL!) */
227 {0,SSL_TXT_CMPDEF,0, SSL_kEDH|SSL_kEECDH,SSL_aNULL,~SSL_eNULL,0,0,0,0,0,0},
228
229 /* key exchange aliases
230 * (some of those using only a single bit here combine
231 * multiple key exchange algs according to the RFCs,
232 * e.g. kEDH combines DHE_DSS and DHE_RSA) */
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},
250 {0,SSL_TXT_kGOST,0, SSL_kGOST,0,0,0,0,0,0,0,0},
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},
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},
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},
284 {0,SSL_TXT_SEED,0, 0,0,SSL_SEED, 0,0,0,0,0,0},
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},
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},
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},
315 /* FIPS 140-2 approved ciphersuite */
316 {0,SSL_TXT_FIPS,0, 0,0,~SSL_eNULL,0,0,SSL_FIPS, 0,0,0},
317 };
318/* Search for public key algorithm with given name and
319 * return its pkey_id if it is available. Otherwise return 0
320 */
321#ifdef OPENSSL_NO_ENGINE
322
323static int get_optional_pkey_id(const char *pkey_name)
324 {
325 const EVP_PKEY_ASN1_METHOD *ameth;
326 int pkey_id=0;
327 ameth = EVP_PKEY_asn1_find_str(NULL,pkey_name,-1);
328 if (ameth)
329 {
330 EVP_PKEY_asn1_get0_info(&pkey_id, NULL,NULL,NULL,NULL,ameth);
331 }
332 return pkey_id;
333 }
334
335#else
336
337static 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
353void ssl_load_ciphers(void)
354 {
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);
363#ifndef OPENSSL_NO_IDEA
364 ssl_cipher_methods[SSL_ENC_IDEA_IDX]=
365 EVP_get_cipherbyname(SN_idea_cbc);
366#else
367 ssl_cipher_methods[SSL_ENC_IDEA_IDX]= NULL;
368#endif
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);
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);
377 ssl_cipher_methods[SSL_ENC_GOST89_IDX]=
378 EVP_get_cipherbyname(SN_gost89_cnt);
379 ssl_cipher_methods[SSL_ENC_SEED_IDX]=
380 EVP_get_cipherbyname(SN_seed_cbc);
381
382 ssl_digest_methods[SSL_MD_MD5_IDX]=
383 EVP_get_digestbyname(SN_md5);
384 ssl_mac_secret_size[SSL_MD_MD5_IDX]=
385 EVP_MD_size(ssl_digest_methods[SSL_MD_MD5_IDX]);
386 OPENSSL_assert(ssl_mac_secret_size[SSL_MD_MD5_IDX] >= 0);
387 ssl_digest_methods[SSL_MD_SHA1_IDX]=
388 EVP_get_digestbyname(SN_sha1);
389 ssl_mac_secret_size[SSL_MD_SHA1_IDX]=
390 EVP_MD_size(ssl_digest_methods[SSL_MD_SHA1_IDX]);
391 OPENSSL_assert(ssl_mac_secret_size[SSL_MD_SHA1_IDX] >= 0);
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]);
398 OPENSSL_assert(ssl_mac_secret_size[SSL_MD_GOST94_IDX] >= 0);
399 }
400 ssl_digest_methods[SSL_MD_GOST89MAC_IDX]=
401 EVP_get_digestbyname(SN_id_Gost28147_89_MAC);
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]) {
404 ssl_mac_secret_size[SSL_MD_GOST89MAC_IDX]=32;
405 }
406
407 }
408#ifndef OPENSSL_NO_COMP
409
410static int sk_comp_cmp(const SSL_COMP * const *a,
411 const SSL_COMP * const *b)
412 {
413 return((*a)->id-(*b)->id);
414 }
415
416static void load_builtin_compressions(void)
417 {
418 int got_write_lock = 0;
419
420 CRYPTO_r_lock(CRYPTO_LOCK_SSL);
421 if (ssl_comp_methods == NULL)
422 {
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)
428 {
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)
434 {
435 comp=(SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP));
436 if (comp != NULL)
437 {
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 }
448 }
449 sk_SSL_COMP_sort(ssl_comp_methods);
450 }
451 MemCheck_on();
452 }
453 }
454
455 if (got_write_lock)
456 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
457 else
458 CRYPTO_r_unlock(CRYPTO_LOCK_SSL);
459 }
460#endif
461
462int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
463 const EVP_MD **md, int *mac_pkey_type, int *mac_secret_size,SSL_COMP **comp)
464 {
465 int i;
466 const SSL_CIPHER *c;
467
468 c=s->cipher;
469 if (c == NULL) return(0);
470 if (comp != NULL)
471 {
472 SSL_COMP ctmp;
473#ifndef OPENSSL_NO_COMP
474 load_builtin_compressions();
475#endif
476
477 *comp=NULL;
478 ctmp.id=s->compress_meth;
479 if (ssl_comp_methods != NULL)
480 {
481 i=sk_SSL_COMP_find(ssl_comp_methods,&ctmp);
482 if (i >= 0)
483 *comp=sk_SSL_COMP_value(ssl_comp_methods,i);
484 else
485 *comp=NULL;
486 }
487 }
488
489 if ((enc == NULL) || (md == NULL)) return(0);
490
491 switch (c->algorithm_enc)
492 {
493 case SSL_DES:
494 i=SSL_ENC_DES_IDX;
495 break;
496 case SSL_3DES:
497 i=SSL_ENC_3DES_IDX;
498 break;
499 case SSL_RC4:
500 i=SSL_ENC_RC4_IDX;
501 break;
502 case SSL_RC2:
503 i=SSL_ENC_RC2_IDX;
504 break;
505 case SSL_IDEA:
506 i=SSL_ENC_IDEA_IDX;
507 break;
508 case SSL_eNULL:
509 i=SSL_ENC_NULL_IDX;
510 break;
511 case SSL_AES128:
512 i=SSL_ENC_AES128_IDX;
513 break;
514 case SSL_AES256:
515 i=SSL_ENC_AES256_IDX;
516 break;
517 case SSL_CAMELLIA128:
518 i=SSL_ENC_CAMELLIA128_IDX;
519 break;
520 case SSL_CAMELLIA256:
521 i=SSL_ENC_CAMELLIA256_IDX;
522 break;
523 case SSL_eGOST2814789CNT:
524 i=SSL_ENC_GOST89_IDX;
525 break;
526 case SSL_SEED:
527 i=SSL_ENC_SEED_IDX;
528 break;
529 default:
530 i= -1;
531 break;
532 }
533
534 if ((i < 0) || (i > SSL_ENC_NUM_IDX))
535 *enc=NULL;
536 else
537 {
538 if (i == SSL_ENC_NULL_IDX)
539 *enc=EVP_enc_null();
540 else
541 *enc=ssl_cipher_methods[i];
542 }
543
544 switch (c->algorithm_mac)
545 {
546 case SSL_MD5:
547 i=SSL_MD_MD5_IDX;
548 break;
549 case SSL_SHA1:
550 i=SSL_MD_SHA1_IDX;
551 break;
552 case SSL_GOST94:
553 i = SSL_MD_GOST94_IDX;
554 break;
555 case SSL_GOST89MAC:
556 i = SSL_MD_GOST89MAC_IDX;
557 break;
558 default:
559 i= -1;
560 break;
561 }
562 if ((i < 0) || (i > SSL_MD_NUM_IDX))
563 {
564 *md=NULL;
565 if (mac_pkey_type!=NULL) *mac_pkey_type = NID_undef;
566 if (mac_secret_size!=NULL) *mac_secret_size = 0;
567
568 }
569 else
570 {
571 *md=ssl_digest_methods[i];
572 if (mac_pkey_type!=NULL) *mac_pkey_type = ssl_mac_pkey_id[i];
573 if (mac_secret_size!=NULL) *mac_secret_size = ssl_mac_secret_size[i];
574 }
575
576 if ((*enc != NULL) && (*md != NULL) && (!mac_pkey_type||*mac_pkey_type != NID_undef))
577 return(1);
578 else
579 return(0);
580 }
581
582int ssl_get_handshake_digest(int idx, long *mask, const EVP_MD **md)
583{
584 if (idx <0||idx>=SSL_MD_NUM_IDX)
585 {
586 return 0;
587 }
588 if (ssl_handshake_digest_flag[idx]==0) return 0;
589 *mask = ssl_handshake_digest_flag[idx];
590 *md = ssl_digest_methods[idx];
591 return 1;
592}
593
594#define ITEM_SEP(a) \
595 (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ','))
596
597static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr,
598 CIPHER_ORDER **tail)
599 {
600 if (curr == *tail) return;
601 if (curr == *head)
602 *head=curr->next;
603 if (curr->prev != NULL)
604 curr->prev->next=curr->next;
605 if (curr->next != NULL)
606 curr->next->prev=curr->prev;
607 (*tail)->next=curr;
608 curr->prev= *tail;
609 curr->next=NULL;
610 *tail=curr;
611 }
612
613static void ll_append_head(CIPHER_ORDER **head, CIPHER_ORDER *curr,
614 CIPHER_ORDER **tail)
615 {
616 if (curr == *head) return;
617 if (curr == *tail)
618 *tail=curr->prev;
619 if (curr->next != NULL)
620 curr->next->prev=curr->prev;
621 if (curr->prev != NULL)
622 curr->prev->next=curr->next;
623 (*head)->prev=curr;
624 curr->next= *head;
625 curr->prev=NULL;
626 *head=curr;
627 }
628
629static void ssl_cipher_get_disabled(unsigned long *mkey, unsigned long *auth, unsigned long *enc, unsigned long *mac, unsigned long *ssl)
630 {
631 *mkey = 0;
632 *auth = 0;
633 *enc = 0;
634 *mac = 0;
635 *ssl = 0;
636
637#ifdef OPENSSL_NO_RSA
638 *mkey |= SSL_kRSA;
639 *auth |= SSL_aRSA;
640#endif
641#ifdef OPENSSL_NO_DSA
642 *auth |= SSL_aDSS;
643#endif
644 *mkey |= SSL_kDHr|SSL_kDHd; /* no such ciphersuites supported! */
645 *auth |= SSL_aDH;
646#ifdef OPENSSL_NO_DH
647 *mkey |= SSL_kDHr|SSL_kDHd|SSL_kEDH;
648 *auth |= SSL_aDH;
649#endif
650#ifdef OPENSSL_NO_KRB5
651 *mkey |= SSL_kKRB5;
652 *auth |= SSL_aKRB5;
653#endif
654#ifdef OPENSSL_NO_ECDSA
655 *auth |= SSL_aECDSA;
656#endif
657#ifdef OPENSSL_NO_ECDH
658 *mkey |= SSL_kECDHe|SSL_kECDHr;
659 *auth |= SSL_aECDH;
660#endif
661#ifdef OPENSSL_NO_PSK
662 *mkey |= SSL_kPSK;
663 *auth |= SSL_aPSK;
664#endif
665 /* Check for presence of GOST 34.10 algorithms, and if they
666 * do not present, disable appropriate auth and key exchange */
667 if (!get_optional_pkey_id("gost94")) {
668 *auth |= SSL_aGOST94;
669 }
670 if (!get_optional_pkey_id("gost2001")) {
671 *auth |= SSL_aGOST01;
672 }
673 /* Disable GOST key exchange if no GOST signature algs are available * */
674 if ((*auth & (SSL_aGOST94|SSL_aGOST01)) == (SSL_aGOST94|SSL_aGOST01)) {
675 *mkey |= SSL_kGOST;
676 }
677#ifdef SSL_FORBID_ENULL
678 *enc |= SSL_eNULL;
679#endif
680
681
682
683 *enc |= (ssl_cipher_methods[SSL_ENC_DES_IDX ] == NULL) ? SSL_DES :0;
684 *enc |= (ssl_cipher_methods[SSL_ENC_3DES_IDX] == NULL) ? SSL_3DES:0;
685 *enc |= (ssl_cipher_methods[SSL_ENC_RC4_IDX ] == NULL) ? SSL_RC4 :0;
686 *enc |= (ssl_cipher_methods[SSL_ENC_RC2_IDX ] == NULL) ? SSL_RC2 :0;
687 *enc |= (ssl_cipher_methods[SSL_ENC_IDEA_IDX] == NULL) ? SSL_IDEA:0;
688 *enc |= (ssl_cipher_methods[SSL_ENC_AES128_IDX] == NULL) ? SSL_AES128:0;
689 *enc |= (ssl_cipher_methods[SSL_ENC_AES256_IDX] == NULL) ? SSL_AES256:0;
690 *enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX] == NULL) ? SSL_CAMELLIA128:0;
691 *enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX] == NULL) ? SSL_CAMELLIA256:0;
692 *enc |= (ssl_cipher_methods[SSL_ENC_GOST89_IDX] == NULL) ? SSL_eGOST2814789CNT:0;
693 *enc |= (ssl_cipher_methods[SSL_ENC_SEED_IDX] == NULL) ? SSL_SEED:0;
694
695 *mac |= (ssl_digest_methods[SSL_MD_MD5_IDX ] == NULL) ? SSL_MD5 :0;
696 *mac |= (ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL) ? SSL_SHA1:0;
697 *mac |= (ssl_digest_methods[SSL_MD_GOST94_IDX] == NULL) ? SSL_GOST94:0;
698 *mac |= (ssl_digest_methods[SSL_MD_GOST89MAC_IDX] == NULL || ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]==NID_undef)? SSL_GOST89MAC:0;
699
700 }
701
702static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method,
703 int num_of_ciphers,
704 unsigned long disabled_mkey, unsigned long disabled_auth,
705 unsigned long disabled_enc, unsigned long disabled_mac,
706 unsigned long disabled_ssl,
707 CIPHER_ORDER *co_list,
708 CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p)
709 {
710 int i, co_list_num;
711 const SSL_CIPHER *c;
712
713 /*
714 * We have num_of_ciphers descriptions compiled in, depending on the
715 * method selected (SSLv2 and/or SSLv3, TLSv1 etc).
716 * These will later be sorted in a linked list with at most num
717 * entries.
718 */
719
720 /* Get the initial list of ciphers */
721 co_list_num = 0; /* actual count of ciphers */
722 for (i = 0; i < num_of_ciphers; i++)
723 {
724 c = ssl_method->get_cipher(i);
725 /* drop those that use any of that is not available */
726 if ((c != NULL) && c->valid &&
727 !(c->algorithm_mkey & disabled_mkey) &&
728 !(c->algorithm_auth & disabled_auth) &&
729 !(c->algorithm_enc & disabled_enc) &&
730 !(c->algorithm_mac & disabled_mac) &&
731 !(c->algorithm_ssl & disabled_ssl))
732 {
733 co_list[co_list_num].cipher = c;
734 co_list[co_list_num].next = NULL;
735 co_list[co_list_num].prev = NULL;
736 co_list[co_list_num].active = 0;
737 co_list_num++;
738#ifdef KSSL_DEBUG
739 printf("\t%d: %s %lx %lx %lx\n",i,c->name,c->id,c->algorithm_mkey,c->algorithm_auth);
740#endif /* KSSL_DEBUG */
741 /*
742 if (!sk_push(ca_list,(char *)c)) goto err;
743 */
744 }
745 }
746
747 /*
748 * Prepare linked list from list entries
749 */
750 if (co_list_num > 0)
751 {
752 co_list[0].prev = NULL;
753
754 if (co_list_num > 1)
755 {
756 co_list[0].next = &co_list[1];
757
758 for (i = 1; i < co_list_num - 1; i++)
759 {
760 co_list[i].prev = &co_list[i - 1];
761 co_list[i].next = &co_list[i + 1];
762 }
763
764 co_list[co_list_num - 1].prev = &co_list[co_list_num - 2];
765 }
766
767 co_list[co_list_num - 1].next = NULL;
768
769 *head_p = &co_list[0];
770 *tail_p = &co_list[co_list_num - 1];
771 }
772 }
773
774static void ssl_cipher_collect_aliases(const SSL_CIPHER **ca_list,
775 int num_of_group_aliases,
776 unsigned long disabled_mkey, unsigned long disabled_auth,
777 unsigned long disabled_enc, unsigned long disabled_mac,
778 unsigned long disabled_ssl,
779 CIPHER_ORDER *head)
780 {
781 CIPHER_ORDER *ciph_curr;
782 const SSL_CIPHER **ca_curr;
783 int i;
784 unsigned long mask_mkey = ~disabled_mkey;
785 unsigned long mask_auth = ~disabled_auth;
786 unsigned long mask_enc = ~disabled_enc;
787 unsigned long mask_mac = ~disabled_mac;
788 unsigned long mask_ssl = ~disabled_ssl;
789
790 /*
791 * First, add the real ciphers as already collected
792 */
793 ciph_curr = head;
794 ca_curr = ca_list;
795 while (ciph_curr != NULL)
796 {
797 *ca_curr = ciph_curr->cipher;
798 ca_curr++;
799 ciph_curr = ciph_curr->next;
800 }
801
802 /*
803 * Now we add the available ones from the cipher_aliases[] table.
804 * They represent either one or more algorithms, some of which
805 * in any affected category must be supported (set in enabled_mask),
806 * or represent a cipher strength value (will be added in any case because algorithms=0).
807 */
808 for (i = 0; i < num_of_group_aliases; i++)
809 {
810 unsigned long algorithm_mkey = cipher_aliases[i].algorithm_mkey;
811 unsigned long algorithm_auth = cipher_aliases[i].algorithm_auth;
812 unsigned long algorithm_enc = cipher_aliases[i].algorithm_enc;
813 unsigned long algorithm_mac = cipher_aliases[i].algorithm_mac;
814 unsigned long algorithm_ssl = cipher_aliases[i].algorithm_ssl;
815
816 if (algorithm_mkey)
817 if ((algorithm_mkey & mask_mkey) == 0)
818 continue;
819
820 if (algorithm_auth)
821 if ((algorithm_auth & mask_auth) == 0)
822 continue;
823
824 if (algorithm_enc)
825 if ((algorithm_enc & mask_enc) == 0)
826 continue;
827
828 if (algorithm_mac)
829 if ((algorithm_mac & mask_mac) == 0)
830 continue;
831
832 if (algorithm_ssl)
833 if ((algorithm_ssl & mask_ssl) == 0)
834 continue;
835
836 *ca_curr = (SSL_CIPHER *)(cipher_aliases + i);
837 ca_curr++;
838 }
839
840 *ca_curr = NULL; /* end of list */
841 }
842
843static void ssl_cipher_apply_rule(unsigned long cipher_id,
844 unsigned long alg_mkey, unsigned long alg_auth,
845 unsigned long alg_enc, unsigned long alg_mac,
846 unsigned long alg_ssl,
847 unsigned long algo_strength,
848 int rule, int strength_bits,
849 CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p)
850 {
851 CIPHER_ORDER *head, *tail, *curr, *curr2, *last;
852 const SSL_CIPHER *cp;
853 int reverse = 0;
854
855#ifdef CIPHER_DEBUG
856 printf("Applying rule %d with %08lx/%08lx/%08lx/%08lx/%08lx %08lx (%d)\n",
857 rule, alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength, strength_bits);
858#endif
859
860 if (rule == CIPHER_DEL)
861 reverse = 1; /* needed to maintain sorting between currently deleted ciphers */
862
863 head = *head_p;
864 tail = *tail_p;
865
866 if (reverse)
867 {
868 curr = tail;
869 last = head;
870 }
871 else
872 {
873 curr = head;
874 last = tail;
875 }
876
877 curr2 = curr;
878 for (;;)
879 {
880 if ((curr == NULL) || (curr == last)) break;
881 curr = curr2;
882 curr2 = reverse ? curr->prev : curr->next;
883
884 cp = curr->cipher;
885
886 /*
887 * Selection criteria is either the value of strength_bits
888 * or the algorithms used.
889 */
890 if (strength_bits >= 0)
891 {
892 if (strength_bits != cp->strength_bits)
893 continue;
894 }
895 else
896 {
897#ifdef CIPHER_DEBUG
898 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);
899#endif
900
901 if (alg_mkey && !(alg_mkey & cp->algorithm_mkey))
902 continue;
903 if (alg_auth && !(alg_auth & cp->algorithm_auth))
904 continue;
905 if (alg_enc && !(alg_enc & cp->algorithm_enc))
906 continue;
907 if (alg_mac && !(alg_mac & cp->algorithm_mac))
908 continue;
909 if (alg_ssl && !(alg_ssl & cp->algorithm_ssl))
910 continue;
911 if ((algo_strength & SSL_EXP_MASK) && !(algo_strength & SSL_EXP_MASK & cp->algo_strength))
912 continue;
913 if ((algo_strength & SSL_STRONG_MASK) && !(algo_strength & SSL_STRONG_MASK & cp->algo_strength))
914 continue;
915 }
916
917#ifdef CIPHER_DEBUG
918 printf("Action = %d\n", rule);
919#endif
920
921 /* add the cipher if it has not been added yet. */
922 if (rule == CIPHER_ADD)
923 {
924 /* reverse == 0 */
925 if (!curr->active)
926 {
927 ll_append_tail(&head, curr, &tail);
928 curr->active = 1;
929 }
930 }
931 /* Move the added cipher to this location */
932 else if (rule == CIPHER_ORD)
933 {
934 /* reverse == 0 */
935 if (curr->active)
936 {
937 ll_append_tail(&head, curr, &tail);
938 }
939 }
940 else if (rule == CIPHER_DEL)
941 {
942 /* reverse == 1 */
943 if (curr->active)
944 {
945 /* most recently deleted ciphersuites get best positions
946 * for any future CIPHER_ADD (note that the CIPHER_DEL loop
947 * works in reverse to maintain the order) */
948 ll_append_head(&head, curr, &tail);
949 curr->active = 0;
950 }
951 }
952 else if (rule == CIPHER_KILL)
953 {
954 /* reverse == 0 */
955 if (head == curr)
956 head = curr->next;
957 else
958 curr->prev->next = curr->next;
959 if (tail == curr)
960 tail = curr->prev;
961 curr->active = 0;
962 if (curr->next != NULL)
963 curr->next->prev = curr->prev;
964 if (curr->prev != NULL)
965 curr->prev->next = curr->next;
966 curr->next = NULL;
967 curr->prev = NULL;
968 }
969 }
970
971 *head_p = head;
972 *tail_p = tail;
973 }
974
975static int ssl_cipher_strength_sort(CIPHER_ORDER **head_p,
976 CIPHER_ORDER **tail_p)
977 {
978 int max_strength_bits, i, *number_uses;
979 CIPHER_ORDER *curr;
980
981 /*
982 * This routine sorts the ciphers with descending strength. The sorting
983 * must keep the pre-sorted sequence, so we apply the normal sorting
984 * routine as '+' movement to the end of the list.
985 */
986 max_strength_bits = 0;
987 curr = *head_p;
988 while (curr != NULL)
989 {
990 if (curr->active &&
991 (curr->cipher->strength_bits > max_strength_bits))
992 max_strength_bits = curr->cipher->strength_bits;
993 curr = curr->next;
994 }
995
996 number_uses = OPENSSL_malloc((max_strength_bits + 1) * sizeof(int));
997 if (!number_uses)
998 {
999 SSLerr(SSL_F_SSL_CIPHER_STRENGTH_SORT,ERR_R_MALLOC_FAILURE);
1000 return(0);
1001 }
1002 memset(number_uses, 0, (max_strength_bits + 1) * sizeof(int));
1003
1004 /*
1005 * Now find the strength_bits values actually used
1006 */
1007 curr = *head_p;
1008 while (curr != NULL)
1009 {
1010 if (curr->active)
1011 number_uses[curr->cipher->strength_bits]++;
1012 curr = curr->next;
1013 }
1014 /*
1015 * Go through the list of used strength_bits values in descending
1016 * order.
1017 */
1018 for (i = max_strength_bits; i >= 0; i--)
1019 if (number_uses[i] > 0)
1020 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ORD, i, head_p, tail_p);
1021
1022 OPENSSL_free(number_uses);
1023 return(1);
1024 }
1025
1026static int ssl_cipher_process_rulestr(const char *rule_str,
1027 CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p,
1028 const SSL_CIPHER **ca_list)
1029 {
1030 unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength;
1031 const char *l, *buf;
1032 int j, multi, found, rule, retval, ok, buflen;
1033 unsigned long cipher_id = 0;
1034 char ch;
1035
1036 retval = 1;
1037 l = rule_str;
1038 for (;;)
1039 {
1040 ch = *l;
1041
1042 if (ch == '\0')
1043 break; /* done */
1044 if (ch == '-')
1045 { rule = CIPHER_DEL; l++; }
1046 else if (ch == '+')
1047 { rule = CIPHER_ORD; l++; }
1048 else if (ch == '!')
1049 { rule = CIPHER_KILL; l++; }
1050 else if (ch == '@')
1051 { rule = CIPHER_SPECIAL; l++; }
1052 else
1053 { rule = CIPHER_ADD; }
1054
1055 if (ITEM_SEP(ch))
1056 {
1057 l++;
1058 continue;
1059 }
1060
1061 alg_mkey = 0;
1062 alg_auth = 0;
1063 alg_enc = 0;
1064 alg_mac = 0;
1065 alg_ssl = 0;
1066 algo_strength = 0;
1067
1068 for (;;)
1069 {
1070 ch = *l;
1071 buf = l;
1072 buflen = 0;
1073#ifndef CHARSET_EBCDIC
1074 while ( ((ch >= 'A') && (ch <= 'Z')) ||
1075 ((ch >= '0') && (ch <= '9')) ||
1076 ((ch >= 'a') && (ch <= 'z')) ||
1077 (ch == '-'))
1078#else
1079 while ( isalnum(ch) || (ch == '-'))
1080#endif
1081 {
1082 ch = *(++l);
1083 buflen++;
1084 }
1085
1086 if (buflen == 0)
1087 {
1088 /*
1089 * We hit something we cannot deal with,
1090 * it is no command or separator nor
1091 * alphanumeric, so we call this an error.
1092 */
1093 SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
1094 SSL_R_INVALID_COMMAND);
1095 retval = found = 0;
1096 l++;
1097 break;
1098 }
1099
1100 if (rule == CIPHER_SPECIAL)
1101 {
1102 found = 0; /* unused -- avoid compiler warning */
1103 break; /* special treatment */
1104 }
1105
1106 /* check for multi-part specification */
1107 if (ch == '+')
1108 {
1109 multi=1;
1110 l++;
1111 }
1112 else
1113 multi=0;
1114
1115 /*
1116 * Now search for the cipher alias in the ca_list. Be careful
1117 * with the strncmp, because the "buflen" limitation
1118 * will make the rule "ADH:SOME" and the cipher
1119 * "ADH-MY-CIPHER" look like a match for buflen=3.
1120 * So additionally check whether the cipher name found
1121 * has the correct length. We can save a strlen() call:
1122 * just checking for the '\0' at the right place is
1123 * sufficient, we have to strncmp() anyway. (We cannot
1124 * use strcmp(), because buf is not '\0' terminated.)
1125 */
1126 j = found = 0;
1127 cipher_id = 0;
1128 while (ca_list[j])
1129 {
1130 if (!strncmp(buf, ca_list[j]->name, buflen) &&
1131 (ca_list[j]->name[buflen] == '\0'))
1132 {
1133 found = 1;
1134 break;
1135 }
1136 else
1137 j++;
1138 }
1139
1140 if (!found)
1141 break; /* ignore this entry */
1142
1143 if (ca_list[j]->algorithm_mkey)
1144 {
1145 if (alg_mkey)
1146 {
1147 alg_mkey &= ca_list[j]->algorithm_mkey;
1148 if (!alg_mkey) { found = 0; break; }
1149 }
1150 else
1151 alg_mkey = ca_list[j]->algorithm_mkey;
1152 }
1153
1154 if (ca_list[j]->algorithm_auth)
1155 {
1156 if (alg_auth)
1157 {
1158 alg_auth &= ca_list[j]->algorithm_auth;
1159 if (!alg_auth) { found = 0; break; }
1160 }
1161 else
1162 alg_auth = ca_list[j]->algorithm_auth;
1163 }
1164
1165 if (ca_list[j]->algorithm_enc)
1166 {
1167 if (alg_enc)
1168 {
1169 alg_enc &= ca_list[j]->algorithm_enc;
1170 if (!alg_enc) { found = 0; break; }
1171 }
1172 else
1173 alg_enc = ca_list[j]->algorithm_enc;
1174 }
1175
1176 if (ca_list[j]->algorithm_mac)
1177 {
1178 if (alg_mac)
1179 {
1180 alg_mac &= ca_list[j]->algorithm_mac;
1181 if (!alg_mac) { found = 0; break; }
1182 }
1183 else
1184 alg_mac = ca_list[j]->algorithm_mac;
1185 }
1186
1187 if (ca_list[j]->algo_strength & SSL_EXP_MASK)
1188 {
1189 if (algo_strength & SSL_EXP_MASK)
1190 {
1191 algo_strength &= (ca_list[j]->algo_strength & SSL_EXP_MASK) | ~SSL_EXP_MASK;
1192 if (!(algo_strength & SSL_EXP_MASK)) { found = 0; break; }
1193 }
1194 else
1195 algo_strength |= ca_list[j]->algo_strength & SSL_EXP_MASK;
1196 }
1197
1198 if (ca_list[j]->algo_strength & SSL_STRONG_MASK)
1199 {
1200 if (algo_strength & SSL_STRONG_MASK)
1201 {
1202 algo_strength &= (ca_list[j]->algo_strength & SSL_STRONG_MASK) | ~SSL_STRONG_MASK;
1203 if (!(algo_strength & SSL_STRONG_MASK)) { found = 0; break; }
1204 }
1205 else
1206 algo_strength |= ca_list[j]->algo_strength & SSL_STRONG_MASK;
1207 }
1208
1209 if (ca_list[j]->valid)
1210 {
1211 /* explicit ciphersuite found; its protocol version
1212 * does not become part of the search pattern!*/
1213
1214 cipher_id = ca_list[j]->id;
1215 }
1216 else
1217 {
1218 /* not an explicit ciphersuite; only in this case, the
1219 * protocol version is considered part of the search pattern */
1220
1221 if (ca_list[j]->algorithm_ssl)
1222 {
1223 if (alg_ssl)
1224 {
1225 alg_ssl &= ca_list[j]->algorithm_ssl;
1226 if (!alg_ssl) { found = 0; break; }
1227 }
1228 else
1229 alg_ssl = ca_list[j]->algorithm_ssl;
1230 }
1231 }
1232
1233 if (!multi) break;
1234 }
1235
1236 /*
1237 * Ok, we have the rule, now apply it
1238 */
1239 if (rule == CIPHER_SPECIAL)
1240 { /* special command */
1241 ok = 0;
1242 if ((buflen == 8) &&
1243 !strncmp(buf, "STRENGTH", 8))
1244 ok = ssl_cipher_strength_sort(head_p, tail_p);
1245 else
1246 SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
1247 SSL_R_INVALID_COMMAND);
1248 if (ok == 0)
1249 retval = 0;
1250 /*
1251 * We do not support any "multi" options
1252 * together with "@", so throw away the
1253 * rest of the command, if any left, until
1254 * end or ':' is found.
1255 */
1256 while ((*l != '\0') && !ITEM_SEP(*l))
1257 l++;
1258 }
1259 else if (found)
1260 {
1261 ssl_cipher_apply_rule(cipher_id,
1262 alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength,
1263 rule, -1, head_p, tail_p);
1264 }
1265 else
1266 {
1267 while ((*l != '\0') && !ITEM_SEP(*l))
1268 l++;
1269 }
1270 if (*l == '\0') break; /* done */
1271 }
1272
1273 return(retval);
1274 }
1275
1276STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method,
1277 STACK_OF(SSL_CIPHER) **cipher_list,
1278 STACK_OF(SSL_CIPHER) **cipher_list_by_id,
1279 const char *rule_str)
1280 {
1281 int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases;
1282 unsigned long disabled_mkey, disabled_auth, disabled_enc, disabled_mac, disabled_ssl;
1283 STACK_OF(SSL_CIPHER) *cipherstack, *tmp_cipher_list;
1284 const char *rule_p;
1285 CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr;
1286 const SSL_CIPHER **ca_list = NULL;
1287
1288 /*
1289 * Return with error if nothing to do.
1290 */
1291 if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL)
1292 return NULL;
1293
1294 /*
1295 * To reduce the work to do we only want to process the compiled
1296 * in algorithms, so we first get the mask of disabled ciphers.
1297 */
1298 ssl_cipher_get_disabled(&disabled_mkey, &disabled_auth, &disabled_enc, &disabled_mac, &disabled_ssl);
1299
1300 /*
1301 * Now we have to collect the available ciphers from the compiled
1302 * in ciphers. We cannot get more than the number compiled in, so
1303 * it is used for allocation.
1304 */
1305 num_of_ciphers = ssl_method->num_ciphers();
1306#ifdef KSSL_DEBUG
1307 printf("ssl_create_cipher_list() for %d ciphers\n", num_of_ciphers);
1308#endif /* KSSL_DEBUG */
1309 co_list = (CIPHER_ORDER *)OPENSSL_malloc(sizeof(CIPHER_ORDER) * num_of_ciphers);
1310 if (co_list == NULL)
1311 {
1312 SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1313 return(NULL); /* Failure */
1314 }
1315
1316 ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers,
1317 disabled_mkey, disabled_auth, disabled_enc, disabled_mac, disabled_ssl,
1318 co_list, &head, &tail);
1319
1320
1321 /* Now arrange all ciphers by preference: */
1322
1323 /* Everything else being equal, prefer ephemeral ECDH over other key exchange mechanisms */
1324 ssl_cipher_apply_rule(0, SSL_kEECDH, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail);
1325 ssl_cipher_apply_rule(0, SSL_kEECDH, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail);
1326
1327 /* AES is our preferred symmetric cipher */
1328 ssl_cipher_apply_rule(0, 0, 0, SSL_AES, 0, 0, 0, CIPHER_ADD, -1, &head, &tail);
1329
1330 /* Temporarily enable everything else for sorting */
1331 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail);
1332
1333 /* Low priority for MD5 */
1334 ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5, 0, 0, CIPHER_ORD, -1, &head, &tail);
1335
1336 /* Move anonymous ciphers to the end. Usually, these will remain disabled.
1337 * (For applications that allow them, they aren't too bad, but we prefer
1338 * authenticated ciphers.) */
1339 ssl_cipher_apply_rule(0, 0, SSL_aNULL, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail);
1340
1341 /* Move ciphers without forward secrecy to the end */
1342 ssl_cipher_apply_rule(0, 0, SSL_aECDH, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail);
1343 /* ssl_cipher_apply_rule(0, 0, SSL_aDH, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); */
1344 ssl_cipher_apply_rule(0, SSL_kRSA, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail);
1345 ssl_cipher_apply_rule(0, SSL_kPSK, 0,0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail);
1346 ssl_cipher_apply_rule(0, SSL_kKRB5, 0,0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail);
1347
1348 /* RC4 is sort-of broken -- move the the end */
1349 ssl_cipher_apply_rule(0, 0, 0, SSL_RC4, 0, 0, 0, CIPHER_ORD, -1, &head, &tail);
1350
1351 /* Now sort by symmetric encryption strength. The above ordering remains
1352 * in force within each class */
1353 if (!ssl_cipher_strength_sort(&head, &tail))
1354 {
1355 OPENSSL_free(co_list);
1356 return NULL;
1357 }
1358
1359 /* Now disable everything (maintaining the ordering!) */
1360 ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail);
1361
1362
1363 /*
1364 * We also need cipher aliases for selecting based on the rule_str.
1365 * There might be two types of entries in the rule_str: 1) names
1366 * of ciphers themselves 2) aliases for groups of ciphers.
1367 * For 1) we need the available ciphers and for 2) the cipher
1368 * groups of cipher_aliases added together in one list (otherwise
1369 * we would be happy with just the cipher_aliases table).
1370 */
1371 num_of_group_aliases = sizeof(cipher_aliases) / sizeof(SSL_CIPHER);
1372 num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1;
1373 ca_list = OPENSSL_malloc(sizeof(SSL_CIPHER *) * num_of_alias_max);
1374 if (ca_list == NULL)
1375 {
1376 OPENSSL_free(co_list);
1377 SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1378 return(NULL); /* Failure */
1379 }
1380 ssl_cipher_collect_aliases(ca_list, num_of_group_aliases,
1381 disabled_mkey, disabled_auth, disabled_enc,
1382 disabled_mac, disabled_ssl, head);
1383
1384 /*
1385 * If the rule_string begins with DEFAULT, apply the default rule
1386 * before using the (possibly available) additional rules.
1387 */
1388 ok = 1;
1389 rule_p = rule_str;
1390 if (strncmp(rule_str,"DEFAULT",7) == 0)
1391 {
1392 ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST,
1393 &head, &tail, ca_list);
1394 rule_p += 7;
1395 if (*rule_p == ':')
1396 rule_p++;
1397 }
1398
1399 if (ok && (strlen(rule_p) > 0))
1400 ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list);
1401
1402 OPENSSL_free((void *)ca_list); /* Not needed anymore */
1403
1404 if (!ok)
1405 { /* Rule processing failure */
1406 OPENSSL_free(co_list);
1407 return(NULL);
1408 }
1409
1410 /*
1411 * Allocate new "cipherstack" for the result, return with error
1412 * if we cannot get one.
1413 */
1414 if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL)
1415 {
1416 OPENSSL_free(co_list);
1417 return(NULL);
1418 }
1419
1420 /*
1421 * The cipher selection for the list is done. The ciphers are added
1422 * to the resulting precedence to the STACK_OF(SSL_CIPHER).
1423 */
1424 for (curr = head; curr != NULL; curr = curr->next)
1425 {
1426 if (curr->active)
1427 {
1428 sk_SSL_CIPHER_push(cipherstack, curr->cipher);
1429#ifdef CIPHER_DEBUG
1430 printf("<%s>\n",curr->cipher->name);
1431#endif
1432 }
1433 }
1434 OPENSSL_free(co_list); /* Not needed any longer */
1435
1436 tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack);
1437 if (tmp_cipher_list == NULL)
1438 {
1439 sk_SSL_CIPHER_free(cipherstack);
1440 return NULL;
1441 }
1442 if (*cipher_list != NULL)
1443 sk_SSL_CIPHER_free(*cipher_list);
1444 *cipher_list = cipherstack;
1445 if (*cipher_list_by_id != NULL)
1446 sk_SSL_CIPHER_free(*cipher_list_by_id);
1447 *cipher_list_by_id = tmp_cipher_list;
1448 (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id,ssl_cipher_ptr_id_cmp);
1449
1450 sk_SSL_CIPHER_sort(*cipher_list_by_id);
1451 return(cipherstack);
1452 }
1453
1454char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len)
1455 {
1456 int is_export,pkl,kl;
1457 const char *ver,*exp_str;
1458 const char *kx,*au,*enc,*mac;
1459 unsigned long alg_mkey,alg_auth,alg_enc,alg_mac,alg_ssl,alg2;
1460#ifdef KSSL_DEBUG
1461 static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s AL=%lx/%lx/%lx/%lx/%lx\n";
1462#else
1463 static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n";
1464#endif /* KSSL_DEBUG */
1465
1466 alg_mkey = cipher->algorithm_mkey;
1467 alg_auth = cipher->algorithm_auth;
1468 alg_enc = cipher->algorithm_enc;
1469 alg_mac = cipher->algorithm_mac;
1470 alg_ssl = cipher->algorithm_ssl;
1471
1472 alg2=cipher->algorithm2;
1473
1474 is_export=SSL_C_IS_EXPORT(cipher);
1475 pkl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1476 kl=SSL_C_EXPORT_KEYLENGTH(cipher);
1477 exp_str=is_export?" export":"";
1478
1479 if (alg_ssl & SSL_SSLV2)
1480 ver="SSLv2";
1481 else if (alg_ssl & SSL_SSLV3)
1482 ver="SSLv3";
1483 else
1484 ver="unknown";
1485
1486 switch (alg_mkey)
1487 {
1488 case SSL_kRSA:
1489 kx=is_export?(pkl == 512 ? "RSA(512)" : "RSA(1024)"):"RSA";
1490 break;
1491 case SSL_kDHr:
1492 kx="DH/RSA";
1493 break;
1494 case SSL_kDHd:
1495 kx="DH/DSS";
1496 break;
1497 case SSL_kKRB5:
1498 kx="KRB5";
1499 break;
1500 case SSL_kEDH:
1501 kx=is_export?(pkl == 512 ? "DH(512)" : "DH(1024)"):"DH";
1502 break;
1503 case SSL_kECDHr:
1504 kx="ECDH/RSA";
1505 break;
1506 case SSL_kECDHe:
1507 kx="ECDH/ECDSA";
1508 break;
1509 case SSL_kEECDH:
1510 kx="ECDH";
1511 break;
1512 case SSL_kPSK:
1513 kx="PSK";
1514 break;
1515 default:
1516 kx="unknown";
1517 }
1518
1519 switch (alg_auth)
1520 {
1521 case SSL_aRSA:
1522 au="RSA";
1523 break;
1524 case SSL_aDSS:
1525 au="DSS";
1526 break;
1527 case SSL_aDH:
1528 au="DH";
1529 break;
1530 case SSL_aKRB5:
1531 au="KRB5";
1532 break;
1533 case SSL_aECDH:
1534 au="ECDH";
1535 break;
1536 case SSL_aNULL:
1537 au="None";
1538 break;
1539 case SSL_aECDSA:
1540 au="ECDSA";
1541 break;
1542 case SSL_aPSK:
1543 au="PSK";
1544 break;
1545 default:
1546 au="unknown";
1547 break;
1548 }
1549
1550 switch (alg_enc)
1551 {
1552 case SSL_DES:
1553 enc=(is_export && kl == 5)?"DES(40)":"DES(56)";
1554 break;
1555 case SSL_3DES:
1556 enc="3DES(168)";
1557 break;
1558 case SSL_RC4:
1559 enc=is_export?(kl == 5 ? "RC4(40)" : "RC4(56)")
1560 :((alg2&SSL2_CF_8_BYTE_ENC)?"RC4(64)":"RC4(128)");
1561 break;
1562 case SSL_RC2:
1563 enc=is_export?(kl == 5 ? "RC2(40)" : "RC2(56)"):"RC2(128)";
1564 break;
1565 case SSL_IDEA:
1566 enc="IDEA(128)";
1567 break;
1568 case SSL_eNULL:
1569 enc="None";
1570 break;
1571 case SSL_AES128:
1572 enc="AES(128)";
1573 break;
1574 case SSL_AES256:
1575 enc="AES(256)";
1576 break;
1577 case SSL_CAMELLIA128:
1578 enc="Camellia(128)";
1579 break;
1580 case SSL_CAMELLIA256:
1581 enc="Camellia(256)";
1582 break;
1583 case SSL_SEED:
1584 enc="SEED(128)";
1585 break;
1586 default:
1587 enc="unknown";
1588 break;
1589 }
1590
1591 switch (alg_mac)
1592 {
1593 case SSL_MD5:
1594 mac="MD5";
1595 break;
1596 case SSL_SHA1:
1597 mac="SHA1";
1598 break;
1599 default:
1600 mac="unknown";
1601 break;
1602 }
1603
1604 if (buf == NULL)
1605 {
1606 len=128;
1607 buf=OPENSSL_malloc(len);
1608 if (buf == NULL) return("OPENSSL_malloc Error");
1609 }
1610 else if (len < 128)
1611 return("Buffer too small");
1612
1613#ifdef KSSL_DEBUG
1614 BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp_str,alg_mkey,alg_auth,alg_enc,alg_mac,alg_ssl);
1615#else
1616 BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp_str);
1617#endif /* KSSL_DEBUG */
1618 return(buf);
1619 }
1620
1621char *SSL_CIPHER_get_version(const SSL_CIPHER *c)
1622 {
1623 int i;
1624
1625 if (c == NULL) return("(NONE)");
1626 i=(int)(c->id>>24L);
1627 if (i == 3)
1628 return("TLSv1/SSLv3");
1629 else if (i == 2)
1630 return("SSLv2");
1631 else
1632 return("unknown");
1633 }
1634
1635/* return the actual cipher being used */
1636const char *SSL_CIPHER_get_name(const SSL_CIPHER *c)
1637 {
1638 if (c != NULL)
1639 return(c->name);
1640 return("(NONE)");
1641 }
1642
1643/* number of bits for symmetric cipher */
1644int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits)
1645 {
1646 int ret=0;
1647
1648 if (c != NULL)
1649 {
1650 if (alg_bits != NULL) *alg_bits = c->alg_bits;
1651 ret = c->strength_bits;
1652 }
1653 return(ret);
1654 }
1655
1656SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n)
1657 {
1658 SSL_COMP *ctmp;
1659 int i,nn;
1660
1661 if ((n == 0) || (sk == NULL)) return(NULL);
1662 nn=sk_SSL_COMP_num(sk);
1663 for (i=0; i<nn; i++)
1664 {
1665 ctmp=sk_SSL_COMP_value(sk,i);
1666 if (ctmp->id == n)
1667 return(ctmp);
1668 }
1669 return(NULL);
1670 }
1671
1672#ifdef OPENSSL_NO_COMP
1673void *SSL_COMP_get_compression_methods(void)
1674 {
1675 return NULL;
1676 }
1677int SSL_COMP_add_compression_method(int id, void *cm)
1678 {
1679 return 1;
1680 }
1681
1682const char *SSL_COMP_get_name(const void *comp)
1683 {
1684 return NULL;
1685 }
1686#else
1687STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void)
1688 {
1689 load_builtin_compressions();
1690 return(ssl_comp_methods);
1691 }
1692
1693int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm)
1694 {
1695 SSL_COMP *comp;
1696
1697 if (cm == NULL || cm->type == NID_undef)
1698 return 1;
1699
1700 /* According to draft-ietf-tls-compression-04.txt, the
1701 compression number ranges should be the following:
1702
1703 0 to 63: methods defined by the IETF
1704 64 to 192: external party methods assigned by IANA
1705 193 to 255: reserved for private use */
1706 if (id < 193 || id > 255)
1707 {
1708 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,SSL_R_COMPRESSION_ID_NOT_WITHIN_PRIVATE_RANGE);
1709 return 0;
1710 }
1711
1712 MemCheck_off();
1713 comp=(SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP));
1714 comp->id=id;
1715 comp->method=cm;
1716 load_builtin_compressions();
1717 if (ssl_comp_methods
1718 && sk_SSL_COMP_find(ssl_comp_methods,comp) >= 0)
1719 {
1720 OPENSSL_free(comp);
1721 MemCheck_on();
1722 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,SSL_R_DUPLICATE_COMPRESSION_ID);
1723 return(1);
1724 }
1725 else if ((ssl_comp_methods == NULL)
1726 || !sk_SSL_COMP_push(ssl_comp_methods,comp))
1727 {
1728 OPENSSL_free(comp);
1729 MemCheck_on();
1730 SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,ERR_R_MALLOC_FAILURE);
1731 return(1);
1732 }
1733 else
1734 {
1735 MemCheck_on();
1736 return(0);
1737 }
1738 }
1739
1740const char *SSL_COMP_get_name(const COMP_METHOD *comp)
1741 {
1742 if (comp)
1743 return comp->name;
1744 return NULL;
1745 }
1746
1747#endif
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-20 01:39:44 +0000