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0f113f3e MC |
1 | /* |
2 | * ! \file ssl/ssl_cert.c | |
3 | */ | |
58964a49 | 4 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
5 | * All rights reserved. |
6 | * | |
7 | * This package is an SSL implementation written | |
8 | * by Eric Young (eay@cryptsoft.com). | |
9 | * The implementation was written so as to conform with Netscapes SSL. | |
0f113f3e | 10 | * |
d02b48c6 RE |
11 | * This library is free for commercial and non-commercial use as long as |
12 | * the following conditions are aheared to. The following conditions | |
13 | * apply to all code found in this distribution, be it the RC4, RSA, | |
14 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
15 | * included with this distribution is covered by the same copyright terms | |
16 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
0f113f3e | 17 | * |
d02b48c6 RE |
18 | * Copyright remains Eric Young's, and as such any Copyright notices in |
19 | * the code are not to be removed. | |
20 | * If this package is used in a product, Eric Young should be given attribution | |
21 | * as the author of the parts of the library used. | |
22 | * This can be in the form of a textual message at program startup or | |
23 | * in documentation (online or textual) provided with the package. | |
0f113f3e | 24 | * |
d02b48c6 RE |
25 | * Redistribution and use in source and binary forms, with or without |
26 | * modification, are permitted provided that the following conditions | |
27 | * are met: | |
28 | * 1. Redistributions of source code must retain the copyright | |
29 | * notice, this list of conditions and the following disclaimer. | |
30 | * 2. Redistributions in binary form must reproduce the above copyright | |
31 | * notice, this list of conditions and the following disclaimer in the | |
32 | * documentation and/or other materials provided with the distribution. | |
33 | * 3. All advertising materials mentioning features or use of this software | |
34 | * must display the following acknowledgement: | |
35 | * "This product includes cryptographic software written by | |
36 | * Eric Young (eay@cryptsoft.com)" | |
37 | * The word 'cryptographic' can be left out if the rouines from the library | |
38 | * being used are not cryptographic related :-). | |
0f113f3e | 39 | * 4. If you include any Windows specific code (or a derivative thereof) from |
d02b48c6 RE |
40 | * the apps directory (application code) you must include an acknowledgement: |
41 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
0f113f3e | 42 | * |
d02b48c6 RE |
43 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
44 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
45 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
46 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
47 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
48 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
49 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
50 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
51 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
52 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
53 | * SUCH DAMAGE. | |
0f113f3e | 54 | * |
d02b48c6 RE |
55 | * The licence and distribution terms for any publically available version or |
56 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
57 | * copied and put under another distribution licence | |
58 | * [including the GNU Public Licence.] | |
59 | */ | |
ca8e5b9b | 60 | /* ==================================================================== |
52b8dad8 | 61 | * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. |
ca8e5b9b BM |
62 | * |
63 | * Redistribution and use in source and binary forms, with or without | |
64 | * modification, are permitted provided that the following conditions | |
65 | * are met: | |
66 | * | |
67 | * 1. Redistributions of source code must retain the above copyright | |
0f113f3e | 68 | * notice, this list of conditions and the following disclaimer. |
ca8e5b9b BM |
69 | * |
70 | * 2. Redistributions in binary form must reproduce the above copyright | |
71 | * notice, this list of conditions and the following disclaimer in | |
72 | * the documentation and/or other materials provided with the | |
73 | * distribution. | |
74 | * | |
75 | * 3. All advertising materials mentioning features or use of this | |
76 | * software must display the following acknowledgment: | |
77 | * "This product includes software developed by the OpenSSL Project | |
675f605d | 78 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" |
ca8e5b9b BM |
79 | * |
80 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
81 | * endorse or promote products derived from this software without | |
82 | * prior written permission. For written permission, please contact | |
675f605d | 83 | * openssl-core@openssl.org. |
ca8e5b9b BM |
84 | * |
85 | * 5. Products derived from this software may not be called "OpenSSL" | |
86 | * nor may "OpenSSL" appear in their names without prior written | |
87 | * permission of the OpenSSL Project. | |
88 | * | |
89 | * 6. Redistributions of any form whatsoever must retain the following | |
90 | * acknowledgment: | |
91 | * "This product includes software developed by the OpenSSL Project | |
675f605d | 92 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" |
ca8e5b9b BM |
93 | * |
94 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
95 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
96 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
97 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
98 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
99 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
100 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
101 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
102 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
103 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
104 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
105 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
106 | * ==================================================================== | |
675f605d BM |
107 | * |
108 | * This product includes cryptographic software written by Eric Young | |
109 | * (eay@cryptsoft.com). This product includes software written by Tim | |
110 | * Hudson (tjh@cryptsoft.com). | |
111 | * | |
ca8e5b9b | 112 | */ |
ea262260 BM |
113 | /* ==================================================================== |
114 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | |
0f113f3e | 115 | * ECC cipher suite support in OpenSSL originally developed by |
ea262260 BM |
116 | * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. |
117 | */ | |
d02b48c6 RE |
118 | |
119 | #include <stdio.h> | |
17f389bb | 120 | |
41d2a336 | 121 | #include "e_os.h" |
17f389bb AP |
122 | #ifndef NO_SYS_TYPES_H |
123 | # include <sys/types.h> | |
124 | #endif | |
125 | ||
4083a229 | 126 | #include "o_dir.h" |
ec577822 BM |
127 | #include <openssl/objects.h> |
128 | #include <openssl/bio.h> | |
129 | #include <openssl/pem.h> | |
bb7cd4e3 | 130 | #include <openssl/x509v3.h> |
3eeaab4b | 131 | #ifndef OPENSSL_NO_DH |
0f113f3e | 132 | # include <openssl/dh.h> |
3eeaab4b | 133 | #endif |
d095b68d | 134 | #include <openssl/bn.h> |
d02b48c6 RE |
135 | #include "ssl_locl.h" |
136 | ||
0f113f3e MC |
137 | static int ssl_security_default_callback(SSL *s, SSL_CTX *ctx, int op, |
138 | int bits, int nid, void *other, | |
139 | void *ex); | |
b362ccab | 140 | |
6b691a5c | 141 | int SSL_get_ex_data_X509_STORE_CTX_idx(void) |
0f113f3e MC |
142 | { |
143 | static volatile int ssl_x509_store_ctx_idx = -1; | |
144 | int got_write_lock = 0; | |
145 | ||
146 | CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); | |
147 | ||
148 | if (ssl_x509_store_ctx_idx < 0) { | |
149 | CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); | |
150 | CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); | |
151 | got_write_lock = 1; | |
152 | ||
153 | if (ssl_x509_store_ctx_idx < 0) { | |
154 | ssl_x509_store_ctx_idx = | |
155 | X509_STORE_CTX_get_ex_new_index(0, "SSL for verify callback", | |
156 | NULL, NULL, NULL); | |
157 | } | |
158 | } | |
159 | ||
160 | if (got_write_lock) | |
161 | CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); | |
162 | else | |
163 | CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); | |
164 | ||
165 | return ssl_x509_store_ctx_idx; | |
166 | } | |
dfeab068 | 167 | |
4453cd8c | 168 | void ssl_cert_set_default_md(CERT *cert) |
0f113f3e MC |
169 | { |
170 | /* Set digest values to defaults */ | |
6b7be581 | 171 | #ifndef OPENSSL_NO_DSA |
0f113f3e | 172 | cert->pkeys[SSL_PKEY_DSA_SIGN].digest = EVP_sha1(); |
6b7be581 DSH |
173 | #endif |
174 | #ifndef OPENSSL_NO_RSA | |
0f113f3e MC |
175 | cert->pkeys[SSL_PKEY_RSA_SIGN].digest = EVP_sha1(); |
176 | cert->pkeys[SSL_PKEY_RSA_ENC].digest = EVP_sha1(); | |
6b7be581 | 177 | #endif |
10bf4fc2 | 178 | #ifndef OPENSSL_NO_EC |
0f113f3e | 179 | cert->pkeys[SSL_PKEY_ECC].digest = EVP_sha1(); |
6b7be581 | 180 | #endif |
0f113f3e | 181 | } |
6b7be581 | 182 | |
6b691a5c | 183 | CERT *ssl_cert_new(void) |
0f113f3e MC |
184 | { |
185 | CERT *ret; | |
186 | ||
187 | ret = (CERT *)OPENSSL_malloc(sizeof(CERT)); | |
188 | if (ret == NULL) { | |
189 | SSLerr(SSL_F_SSL_CERT_NEW, ERR_R_MALLOC_FAILURE); | |
190 | return (NULL); | |
191 | } | |
192 | memset(ret, 0, sizeof(CERT)); | |
193 | ||
194 | ret->key = &(ret->pkeys[SSL_PKEY_RSA_ENC]); | |
195 | ret->references = 1; | |
196 | ssl_cert_set_default_md(ret); | |
197 | ret->sec_cb = ssl_security_default_callback; | |
198 | ret->sec_level = OPENSSL_TLS_SECURITY_LEVEL; | |
199 | ret->sec_ex = NULL; | |
200 | return (ret); | |
201 | } | |
d02b48c6 | 202 | |
ca8e5b9b | 203 | CERT *ssl_cert_dup(CERT *cert) |
0f113f3e MC |
204 | { |
205 | CERT *ret; | |
206 | int i; | |
207 | ||
208 | ret = (CERT *)OPENSSL_malloc(sizeof(CERT)); | |
209 | if (ret == NULL) { | |
210 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); | |
211 | return (NULL); | |
212 | } | |
213 | ||
214 | memset(ret, 0, sizeof(CERT)); | |
215 | ||
216 | ret->key = &ret->pkeys[cert->key - &cert->pkeys[0]]; | |
217 | /* | |
218 | * or ret->key = ret->pkeys + (cert->key - cert->pkeys), if you find that | |
219 | * more readable | |
220 | */ | |
221 | ||
222 | ret->valid = cert->valid; | |
223 | ret->mask_k = cert->mask_k; | |
224 | ret->mask_a = cert->mask_a; | |
225 | ret->export_mask_k = cert->export_mask_k; | |
226 | ret->export_mask_a = cert->export_mask_a; | |
ca8e5b9b | 227 | |
bc36ee62 | 228 | #ifndef OPENSSL_NO_RSA |
0f113f3e MC |
229 | if (cert->rsa_tmp != NULL) { |
230 | RSA_up_ref(cert->rsa_tmp); | |
231 | ret->rsa_tmp = cert->rsa_tmp; | |
232 | } | |
233 | ret->rsa_tmp_cb = cert->rsa_tmp_cb; | |
ca8e5b9b BM |
234 | #endif |
235 | ||
bc36ee62 | 236 | #ifndef OPENSSL_NO_DH |
0f113f3e MC |
237 | if (cert->dh_tmp != NULL) { |
238 | ret->dh_tmp = DHparams_dup(cert->dh_tmp); | |
239 | if (ret->dh_tmp == NULL) { | |
240 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_DH_LIB); | |
241 | goto err; | |
242 | } | |
243 | if (cert->dh_tmp->priv_key) { | |
244 | BIGNUM *b = BN_dup(cert->dh_tmp->priv_key); | |
245 | if (!b) { | |
246 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_BN_LIB); | |
247 | goto err; | |
248 | } | |
249 | ret->dh_tmp->priv_key = b; | |
250 | } | |
251 | if (cert->dh_tmp->pub_key) { | |
252 | BIGNUM *b = BN_dup(cert->dh_tmp->pub_key); | |
253 | if (!b) { | |
254 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_BN_LIB); | |
255 | goto err; | |
256 | } | |
257 | ret->dh_tmp->pub_key = b; | |
258 | } | |
259 | } | |
260 | ret->dh_tmp_cb = cert->dh_tmp_cb; | |
261 | ret->dh_tmp_auto = cert->dh_tmp_auto; | |
ca8e5b9b BM |
262 | #endif |
263 | ||
10bf4fc2 | 264 | #ifndef OPENSSL_NO_EC |
0f113f3e MC |
265 | if (cert->ecdh_tmp) { |
266 | ret->ecdh_tmp = EC_KEY_dup(cert->ecdh_tmp); | |
267 | if (ret->ecdh_tmp == NULL) { | |
268 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_EC_LIB); | |
269 | goto err; | |
270 | } | |
271 | } | |
272 | ret->ecdh_tmp_cb = cert->ecdh_tmp_cb; | |
273 | ret->ecdh_tmp_auto = cert->ecdh_tmp_auto; | |
ea262260 BM |
274 | #endif |
275 | ||
0f113f3e MC |
276 | for (i = 0; i < SSL_PKEY_NUM; i++) { |
277 | CERT_PKEY *cpk = cert->pkeys + i; | |
278 | CERT_PKEY *rpk = ret->pkeys + i; | |
279 | if (cpk->x509 != NULL) { | |
280 | rpk->x509 = cpk->x509; | |
281 | CRYPTO_add(&rpk->x509->references, 1, CRYPTO_LOCK_X509); | |
282 | } | |
283 | ||
284 | if (cpk->privatekey != NULL) { | |
285 | rpk->privatekey = cpk->privatekey; | |
286 | CRYPTO_add(&cpk->privatekey->references, 1, CRYPTO_LOCK_EVP_PKEY); | |
287 | } | |
288 | ||
289 | if (cpk->chain) { | |
290 | rpk->chain = X509_chain_up_ref(cpk->chain); | |
291 | if (!rpk->chain) { | |
292 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); | |
293 | goto err; | |
294 | } | |
295 | } | |
296 | rpk->valid_flags = 0; | |
a398f821 | 297 | #ifndef OPENSSL_NO_TLSEXT |
0f113f3e MC |
298 | if (cert->pkeys[i].serverinfo != NULL) { |
299 | /* Just copy everything. */ | |
300 | ret->pkeys[i].serverinfo = | |
301 | OPENSSL_malloc(cert->pkeys[i].serverinfo_length); | |
302 | if (ret->pkeys[i].serverinfo == NULL) { | |
303 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); | |
304 | goto err; | |
305 | } | |
306 | ret->pkeys[i].serverinfo_length = | |
307 | cert->pkeys[i].serverinfo_length; | |
308 | memcpy(ret->pkeys[i].serverinfo, | |
309 | cert->pkeys[i].serverinfo, | |
310 | cert->pkeys[i].serverinfo_length); | |
311 | } | |
a398f821 | 312 | #endif |
0f113f3e MC |
313 | } |
314 | ||
315 | ret->references = 1; | |
316 | /* | |
317 | * Set digests to defaults. NB: we don't copy existing values as they | |
318 | * will be set during handshake. | |
319 | */ | |
320 | ssl_cert_set_default_md(ret); | |
321 | /* Peer sigalgs set to NULL as we get these from handshake too */ | |
322 | ret->peer_sigalgs = NULL; | |
323 | ret->peer_sigalgslen = 0; | |
324 | /* Configured sigalgs however we copy across */ | |
325 | ||
326 | if (cert->conf_sigalgs) { | |
327 | ret->conf_sigalgs = OPENSSL_malloc(cert->conf_sigalgslen); | |
328 | if (!ret->conf_sigalgs) | |
329 | goto err; | |
330 | memcpy(ret->conf_sigalgs, cert->conf_sigalgs, cert->conf_sigalgslen); | |
331 | ret->conf_sigalgslen = cert->conf_sigalgslen; | |
332 | } else | |
333 | ret->conf_sigalgs = NULL; | |
334 | ||
335 | if (cert->client_sigalgs) { | |
336 | ret->client_sigalgs = OPENSSL_malloc(cert->client_sigalgslen); | |
337 | if (!ret->client_sigalgs) | |
338 | goto err; | |
339 | memcpy(ret->client_sigalgs, cert->client_sigalgs, | |
340 | cert->client_sigalgslen); | |
341 | ret->client_sigalgslen = cert->client_sigalgslen; | |
342 | } else | |
343 | ret->client_sigalgs = NULL; | |
344 | /* Shared sigalgs also NULL */ | |
345 | ret->shared_sigalgs = NULL; | |
346 | /* Copy any custom client certificate types */ | |
347 | if (cert->ctypes) { | |
348 | ret->ctypes = OPENSSL_malloc(cert->ctype_num); | |
349 | if (!ret->ctypes) | |
350 | goto err; | |
351 | memcpy(ret->ctypes, cert->ctypes, cert->ctype_num); | |
352 | ret->ctype_num = cert->ctype_num; | |
353 | } | |
354 | ||
355 | ret->cert_flags = cert->cert_flags; | |
356 | ||
357 | ret->cert_cb = cert->cert_cb; | |
358 | ret->cert_cb_arg = cert->cert_cb_arg; | |
359 | ||
360 | if (cert->verify_store) { | |
361 | CRYPTO_add(&cert->verify_store->references, 1, | |
362 | CRYPTO_LOCK_X509_STORE); | |
363 | ret->verify_store = cert->verify_store; | |
364 | } | |
365 | ||
366 | if (cert->chain_store) { | |
367 | CRYPTO_add(&cert->chain_store->references, 1, CRYPTO_LOCK_X509_STORE); | |
368 | ret->chain_store = cert->chain_store; | |
369 | } | |
370 | ||
371 | ret->ciphers_raw = NULL; | |
372 | ||
373 | ret->sec_cb = cert->sec_cb; | |
374 | ret->sec_level = cert->sec_level; | |
375 | ret->sec_ex = cert->sec_ex; | |
b362ccab | 376 | |
b83294fe | 377 | #ifndef OPENSSL_NO_TLSEXT |
0f113f3e MC |
378 | if (!custom_exts_copy(&ret->cli_ext, &cert->cli_ext)) |
379 | goto err; | |
380 | if (!custom_exts_copy(&ret->srv_ext, &cert->srv_ext)) | |
381 | goto err; | |
b83294fe DSH |
382 | #endif |
383 | ||
0f113f3e MC |
384 | return (ret); |
385 | ||
386 | err: | |
387 | ssl_cert_free(ret); | |
9ade64de | 388 | |
0f113f3e MC |
389 | return NULL; |
390 | } | |
ca8e5b9b | 391 | |
a5ee80b9 DSH |
392 | /* Free up and clear all certificates and chains */ |
393 | ||
394 | void ssl_cert_clear_certs(CERT *c) | |
0f113f3e MC |
395 | { |
396 | int i; | |
397 | if (c == NULL) | |
398 | return; | |
399 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
400 | CERT_PKEY *cpk = c->pkeys + i; | |
401 | if (cpk->x509) { | |
402 | X509_free(cpk->x509); | |
403 | cpk->x509 = NULL; | |
404 | } | |
405 | if (cpk->privatekey) { | |
406 | EVP_PKEY_free(cpk->privatekey); | |
407 | cpk->privatekey = NULL; | |
408 | } | |
409 | if (cpk->chain) { | |
410 | sk_X509_pop_free(cpk->chain, X509_free); | |
411 | cpk->chain = NULL; | |
412 | } | |
a5ee80b9 | 413 | #ifndef OPENSSL_NO_TLSEXT |
0f113f3e MC |
414 | if (cpk->serverinfo) { |
415 | OPENSSL_free(cpk->serverinfo); | |
416 | cpk->serverinfo = NULL; | |
417 | cpk->serverinfo_length = 0; | |
418 | } | |
a5ee80b9 | 419 | #endif |
0f113f3e MC |
420 | /* Clear all flags apart from explicit sign */ |
421 | cpk->valid_flags &= CERT_PKEY_EXPLICIT_SIGN; | |
422 | } | |
423 | } | |
ca8e5b9b | 424 | |
eb90a483 | 425 | void ssl_cert_free(CERT *c) |
0f113f3e MC |
426 | { |
427 | int i; | |
d02b48c6 | 428 | |
0f113f3e MC |
429 | if (c == NULL) |
430 | return; | |
e03ddfae | 431 | |
0f113f3e | 432 | i = CRYPTO_add(&c->references, -1, CRYPTO_LOCK_SSL_CERT); |
58964a49 | 433 | #ifdef REF_PRINT |
0f113f3e | 434 | REF_PRINT("CERT", c); |
58964a49 | 435 | #endif |
0f113f3e MC |
436 | if (i > 0) |
437 | return; | |
d02b48c6 | 438 | #ifdef REF_CHECK |
0f113f3e MC |
439 | if (i < 0) { |
440 | fprintf(stderr, "ssl_cert_free, bad reference count\n"); | |
441 | abort(); /* ok */ | |
442 | } | |
d02b48c6 RE |
443 | #endif |
444 | ||
bc36ee62 | 445 | #ifndef OPENSSL_NO_RSA |
d6407083 | 446 | RSA_free(c->rsa_tmp); |
d02b48c6 | 447 | #endif |
bc36ee62 | 448 | #ifndef OPENSSL_NO_DH |
d6407083 | 449 | DH_free(c->dh_tmp); |
d02b48c6 | 450 | #endif |
10bf4fc2 | 451 | #ifndef OPENSSL_NO_EC |
0f113f3e MC |
452 | if (c->ecdh_tmp) |
453 | EC_KEY_free(c->ecdh_tmp); | |
ea262260 | 454 | #endif |
d02b48c6 | 455 | |
0f113f3e MC |
456 | ssl_cert_clear_certs(c); |
457 | if (c->peer_sigalgs) | |
458 | OPENSSL_free(c->peer_sigalgs); | |
459 | if (c->conf_sigalgs) | |
460 | OPENSSL_free(c->conf_sigalgs); | |
461 | if (c->client_sigalgs) | |
462 | OPENSSL_free(c->client_sigalgs); | |
463 | if (c->shared_sigalgs) | |
464 | OPENSSL_free(c->shared_sigalgs); | |
465 | if (c->ctypes) | |
466 | OPENSSL_free(c->ctypes); | |
467 | if (c->verify_store) | |
468 | X509_STORE_free(c->verify_store); | |
469 | if (c->chain_store) | |
470 | X509_STORE_free(c->chain_store); | |
471 | if (c->ciphers_raw) | |
472 | OPENSSL_free(c->ciphers_raw); | |
b83294fe | 473 | #ifndef OPENSSL_NO_TLSEXT |
0f113f3e MC |
474 | custom_exts_free(&c->cli_ext); |
475 | custom_exts_free(&c->srv_ext); | |
b83294fe | 476 | #endif |
c660ec63 DSH |
477 | if (c->pms) { |
478 | OPENSSL_cleanse(c->pms, c->pmslen); | |
479 | OPENSSL_free(c->pms); | |
480 | c->pms = NULL; | |
481 | } | |
0f113f3e MC |
482 | OPENSSL_free(c); |
483 | } | |
d02b48c6 | 484 | |
b362ccab | 485 | int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain) |
0f113f3e MC |
486 | { |
487 | int i, r; | |
488 | CERT_PKEY *cpk = s ? s->cert->key : ctx->cert->key; | |
489 | if (!cpk) | |
490 | return 0; | |
491 | if (cpk->chain) | |
492 | sk_X509_pop_free(cpk->chain, X509_free); | |
493 | for (i = 0; i < sk_X509_num(chain); i++) { | |
494 | r = ssl_security_cert(s, ctx, sk_X509_value(chain, i), 0, 0); | |
495 | if (r != 1) { | |
496 | SSLerr(SSL_F_SSL_CERT_SET0_CHAIN, r); | |
497 | return 0; | |
498 | } | |
499 | } | |
500 | cpk->chain = chain; | |
501 | return 1; | |
502 | } | |
f71c6e52 | 503 | |
b362ccab | 504 | int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain) |
0f113f3e MC |
505 | { |
506 | STACK_OF(X509) *dchain; | |
507 | if (!chain) | |
508 | return ssl_cert_set0_chain(s, ctx, NULL); | |
509 | dchain = X509_chain_up_ref(chain); | |
510 | if (!dchain) | |
511 | return 0; | |
512 | if (!ssl_cert_set0_chain(s, ctx, dchain)) { | |
513 | sk_X509_pop_free(dchain, X509_free); | |
514 | return 0; | |
515 | } | |
516 | return 1; | |
517 | } | |
f71c6e52 | 518 | |
b362ccab | 519 | int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x) |
0f113f3e MC |
520 | { |
521 | int r; | |
522 | CERT_PKEY *cpk = s ? s->cert->key : ctx->cert->key; | |
523 | if (!cpk) | |
524 | return 0; | |
525 | r = ssl_security_cert(s, ctx, x, 0, 0); | |
526 | if (r != 1) { | |
527 | SSLerr(SSL_F_SSL_CERT_ADD0_CHAIN_CERT, r); | |
528 | return 0; | |
529 | } | |
530 | if (!cpk->chain) | |
531 | cpk->chain = sk_X509_new_null(); | |
532 | if (!cpk->chain || !sk_X509_push(cpk->chain, x)) | |
533 | return 0; | |
534 | return 1; | |
535 | } | |
f71c6e52 | 536 | |
b362ccab | 537 | int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x) |
0f113f3e MC |
538 | { |
539 | if (!ssl_cert_add0_chain_cert(s, ctx, x)) | |
540 | return 0; | |
541 | CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509); | |
542 | return 1; | |
543 | } | |
7b6b246f RS |
544 | |
545 | int ssl_cert_select_current(CERT *c, X509 *x) | |
0f113f3e MC |
546 | { |
547 | int i; | |
548 | if (x == NULL) | |
549 | return 0; | |
550 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
551 | CERT_PKEY *cpk = c->pkeys + i; | |
552 | if (cpk->x509 == x && cpk->privatekey) { | |
553 | c->key = cpk; | |
554 | return 1; | |
555 | } | |
556 | } | |
557 | ||
558 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
559 | CERT_PKEY *cpk = c->pkeys + i; | |
560 | if (cpk->privatekey && cpk->x509 && !X509_cmp(cpk->x509, x)) { | |
561 | c->key = cpk; | |
562 | return 1; | |
563 | } | |
564 | } | |
565 | return 0; | |
566 | } | |
0f78819c DSH |
567 | |
568 | int ssl_cert_set_current(CERT *c, long op) | |
0f113f3e MC |
569 | { |
570 | int i, idx; | |
571 | if (!c) | |
572 | return 0; | |
573 | if (op == SSL_CERT_SET_FIRST) | |
574 | idx = 0; | |
575 | else if (op == SSL_CERT_SET_NEXT) { | |
576 | idx = (int)(c->key - c->pkeys + 1); | |
577 | if (idx >= SSL_PKEY_NUM) | |
578 | return 0; | |
579 | } else | |
580 | return 0; | |
581 | for (i = idx; i < SSL_PKEY_NUM; i++) { | |
582 | CERT_PKEY *cpk = c->pkeys + i; | |
583 | if (cpk->x509 && cpk->privatekey) { | |
584 | c->key = cpk; | |
585 | return 1; | |
586 | } | |
587 | } | |
588 | return 0; | |
589 | } | |
590 | ||
591 | void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg), void *arg) | |
592 | { | |
593 | c->cert_cb = cb; | |
594 | c->cert_cb_arg = arg; | |
595 | } | |
18d71588 | 596 | |
b56bce4f | 597 | SESS_CERT *ssl_sess_cert_new(void) |
0f113f3e MC |
598 | { |
599 | SESS_CERT *ret; | |
b56bce4f | 600 | |
0f113f3e MC |
601 | ret = OPENSSL_malloc(sizeof *ret); |
602 | if (ret == NULL) { | |
603 | SSLerr(SSL_F_SSL_SESS_CERT_NEW, ERR_R_MALLOC_FAILURE); | |
604 | return NULL; | |
605 | } | |
b56bce4f | 606 | |
0f113f3e MC |
607 | memset(ret, 0, sizeof *ret); |
608 | ret->peer_key = &(ret->peer_pkeys[SSL_PKEY_RSA_ENC]); | |
609 | ret->references = 1; | |
b56bce4f | 610 | |
0f113f3e MC |
611 | return ret; |
612 | } | |
b56bce4f BM |
613 | |
614 | void ssl_sess_cert_free(SESS_CERT *sc) | |
0f113f3e MC |
615 | { |
616 | int i; | |
b56bce4f | 617 | |
0f113f3e MC |
618 | if (sc == NULL) |
619 | return; | |
b56bce4f | 620 | |
0f113f3e | 621 | i = CRYPTO_add(&sc->references, -1, CRYPTO_LOCK_SSL_SESS_CERT); |
b56bce4f | 622 | #ifdef REF_PRINT |
0f113f3e | 623 | REF_PRINT("SESS_CERT", sc); |
b56bce4f | 624 | #endif |
0f113f3e MC |
625 | if (i > 0) |
626 | return; | |
b56bce4f | 627 | #ifdef REF_CHECK |
0f113f3e MC |
628 | if (i < 0) { |
629 | fprintf(stderr, "ssl_sess_cert_free, bad reference count\n"); | |
630 | abort(); /* ok */ | |
631 | } | |
ca8e5b9b | 632 | #endif |
15d21c2d | 633 | |
0f113f3e MC |
634 | /* i == 0 */ |
635 | if (sc->cert_chain != NULL) | |
636 | sk_X509_pop_free(sc->cert_chain, X509_free); | |
637 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
638 | if (sc->peer_pkeys[i].x509 != NULL) | |
639 | X509_free(sc->peer_pkeys[i].x509); | |
9e9858d1 RS |
640 | #if 0 |
641 | /* | |
642 | * We don't have the peer's private key. These lines are just | |
643 | * here as a reminder that we're still using a not-quite-appropriate | |
644 | * data structure. | |
645 | */ | |
0f113f3e MC |
646 | if (sc->peer_pkeys[i].privatekey != NULL) |
647 | EVP_PKEY_free(sc->peer_pkeys[i].privatekey); | |
b56bce4f | 648 | #endif |
0f113f3e | 649 | } |
b56bce4f | 650 | |
bc36ee62 | 651 | #ifndef OPENSSL_NO_RSA |
d6407083 | 652 | RSA_free(sc->peer_rsa_tmp); |
b56bce4f | 653 | #endif |
bc36ee62 | 654 | #ifndef OPENSSL_NO_DH |
d6407083 | 655 | DH_free(sc->peer_dh_tmp); |
b56bce4f | 656 | #endif |
10bf4fc2 | 657 | #ifndef OPENSSL_NO_EC |
0f113f3e MC |
658 | if (sc->peer_ecdh_tmp != NULL) |
659 | EC_KEY_free(sc->peer_ecdh_tmp); | |
ea262260 | 660 | #endif |
b56bce4f | 661 | |
0f113f3e MC |
662 | OPENSSL_free(sc); |
663 | } | |
664 | ||
665 | int ssl_set_peer_cert_type(SESS_CERT *sc, int type) | |
666 | { | |
667 | sc->peer_cert_type = type; | |
668 | return (1); | |
669 | } | |
670 | ||
671 | int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk) | |
672 | { | |
673 | X509 *x; | |
674 | int i; | |
675 | X509_STORE *verify_store; | |
676 | X509_STORE_CTX ctx; | |
677 | ||
678 | if (s->cert->verify_store) | |
679 | verify_store = s->cert->verify_store; | |
680 | else | |
681 | verify_store = s->ctx->cert_store; | |
682 | ||
683 | if ((sk == NULL) || (sk_X509_num(sk) == 0)) | |
684 | return (0); | |
685 | ||
686 | x = sk_X509_value(sk, 0); | |
687 | if (!X509_STORE_CTX_init(&ctx, verify_store, x, sk)) { | |
688 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, ERR_R_X509_LIB); | |
689 | return (0); | |
690 | } | |
691 | /* Set suite B flags if needed */ | |
692 | X509_STORE_CTX_set_flags(&ctx, tls1_suiteb(s)); | |
0f113f3e MC |
693 | X509_STORE_CTX_set_ex_data(&ctx, SSL_get_ex_data_X509_STORE_CTX_idx(), s); |
694 | ||
695 | /* | |
696 | * We need to inherit the verify parameters. These can be determined by | |
697 | * the context: if its a server it will verify SSL client certificates or | |
698 | * vice versa. | |
699 | */ | |
700 | ||
701 | X509_STORE_CTX_set_default(&ctx, s->server ? "ssl_client" : "ssl_server"); | |
702 | /* | |
703 | * Anything non-default in "param" should overwrite anything in the ctx. | |
704 | */ | |
705 | X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(&ctx), s->param); | |
706 | ||
707 | if (s->verify_callback) | |
708 | X509_STORE_CTX_set_verify_cb(&ctx, s->verify_callback); | |
709 | ||
710 | if (s->ctx->app_verify_callback != NULL) | |
0f113f3e | 711 | i = s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg); |
0f113f3e | 712 | else { |
0f113f3e MC |
713 | i = X509_verify_cert(&ctx); |
714 | # if 0 | |
715 | /* Dummy error calls so mkerr generates them */ | |
716 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, SSL_R_EE_KEY_TOO_SMALL); | |
717 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, SSL_R_CA_KEY_TOO_SMALL); | |
718 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, SSL_R_CA_MD_TOO_WEAK); | |
719 | # endif | |
720 | if (i > 0) | |
721 | i = ssl_security_cert_chain(s, ctx.chain, NULL, 1); | |
0f113f3e | 722 | } |
d02b48c6 | 723 | |
0f113f3e MC |
724 | s->verify_result = ctx.error; |
725 | X509_STORE_CTX_cleanup(&ctx); | |
d02b48c6 | 726 | |
0f113f3e MC |
727 | return (i); |
728 | } | |
d02b48c6 | 729 | |
0f113f3e MC |
730 | static void set_client_CA_list(STACK_OF(X509_NAME) **ca_list, |
731 | STACK_OF(X509_NAME) *name_list) | |
732 | { | |
733 | if (*ca_list != NULL) | |
734 | sk_X509_NAME_pop_free(*ca_list, X509_NAME_free); | |
d02b48c6 | 735 | |
0f113f3e MC |
736 | *ca_list = name_list; |
737 | } | |
d02b48c6 | 738 | |
838d25a1 | 739 | STACK_OF(X509_NAME) *SSL_dup_CA_list(STACK_OF(X509_NAME) *sk) |
0f113f3e MC |
740 | { |
741 | int i; | |
742 | STACK_OF(X509_NAME) *ret; | |
743 | X509_NAME *name; | |
744 | ||
745 | ret = sk_X509_NAME_new_null(); | |
746 | for (i = 0; i < sk_X509_NAME_num(sk); i++) { | |
747 | name = X509_NAME_dup(sk_X509_NAME_value(sk, i)); | |
748 | if ((name == NULL) || !sk_X509_NAME_push(ret, name)) { | |
749 | sk_X509_NAME_pop_free(ret, X509_NAME_free); | |
750 | return (NULL); | |
751 | } | |
752 | } | |
753 | return (ret); | |
754 | } | |
755 | ||
756 | void SSL_set_client_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list) | |
757 | { | |
758 | set_client_CA_list(&(s->client_CA), name_list); | |
759 | } | |
760 | ||
761 | void SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list) | |
762 | { | |
763 | set_client_CA_list(&(ctx->client_CA), name_list); | |
764 | } | |
d02b48c6 | 765 | |
0821bcd4 | 766 | STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *ctx) |
0f113f3e MC |
767 | { |
768 | return (ctx->client_CA); | |
769 | } | |
d02b48c6 | 770 | |
0821bcd4 | 771 | STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s) |
0f113f3e MC |
772 | { |
773 | if (s->type == SSL_ST_CONNECT) { /* we are in the client */ | |
774 | if (((s->version >> 8) == SSL3_VERSION_MAJOR) && (s->s3 != NULL)) | |
775 | return (s->s3->tmp.ca_names); | |
776 | else | |
777 | return (NULL); | |
778 | } else { | |
779 | if (s->client_CA != NULL) | |
780 | return (s->client_CA); | |
781 | else | |
782 | return (s->ctx->client_CA); | |
783 | } | |
784 | } | |
785 | ||
786 | static int add_client_CA(STACK_OF(X509_NAME) **sk, X509 *x) | |
787 | { | |
788 | X509_NAME *name; | |
789 | ||
790 | if (x == NULL) | |
791 | return (0); | |
792 | if ((*sk == NULL) && ((*sk = sk_X509_NAME_new_null()) == NULL)) | |
793 | return (0); | |
794 | ||
795 | if ((name = X509_NAME_dup(X509_get_subject_name(x))) == NULL) | |
796 | return (0); | |
797 | ||
798 | if (!sk_X509_NAME_push(*sk, name)) { | |
799 | X509_NAME_free(name); | |
800 | return (0); | |
801 | } | |
802 | return (1); | |
803 | } | |
804 | ||
805 | int SSL_add_client_CA(SSL *ssl, X509 *x) | |
806 | { | |
807 | return (add_client_CA(&(ssl->client_CA), x)); | |
808 | } | |
809 | ||
810 | int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *x) | |
811 | { | |
812 | return (add_client_CA(&(ctx->client_CA), x)); | |
813 | } | |
814 | ||
815 | static int xname_cmp(const X509_NAME *const *a, const X509_NAME *const *b) | |
816 | { | |
817 | return (X509_NAME_cmp(*a, *b)); | |
818 | } | |
d02b48c6 | 819 | |
bc36ee62 | 820 | #ifndef OPENSSL_NO_STDIO |
0f113f3e | 821 | /** |
eb90a483 BL |
822 | * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed; |
823 | * it doesn't really have anything to do with clients (except that a common use | |
824 | * for a stack of CAs is to send it to the client). Actually, it doesn't have | |
825 | * much to do with CAs, either, since it will load any old cert. | |
826 | * \param file the file containing one or more certs. | |
827 | * \return a ::STACK containing the certs. | |
828 | */ | |
f73e07cf | 829 | STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file) |
0f113f3e MC |
830 | { |
831 | BIO *in; | |
832 | X509 *x = NULL; | |
833 | X509_NAME *xn = NULL; | |
834 | STACK_OF(X509_NAME) *ret = NULL, *sk; | |
835 | ||
836 | sk = sk_X509_NAME_new(xname_cmp); | |
837 | ||
838 | in = BIO_new(BIO_s_file_internal()); | |
839 | ||
840 | if ((sk == NULL) || (in == NULL)) { | |
841 | SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE, ERR_R_MALLOC_FAILURE); | |
842 | goto err; | |
843 | } | |
844 | ||
845 | if (!BIO_read_filename(in, file)) | |
846 | goto err; | |
847 | ||
848 | for (;;) { | |
849 | if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) | |
850 | break; | |
851 | if (ret == NULL) { | |
852 | ret = sk_X509_NAME_new_null(); | |
853 | if (ret == NULL) { | |
854 | SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE, ERR_R_MALLOC_FAILURE); | |
855 | goto err; | |
856 | } | |
857 | } | |
858 | if ((xn = X509_get_subject_name(x)) == NULL) | |
859 | goto err; | |
860 | /* check for duplicates */ | |
861 | xn = X509_NAME_dup(xn); | |
862 | if (xn == NULL) | |
863 | goto err; | |
864 | if (sk_X509_NAME_find(sk, xn) >= 0) | |
865 | X509_NAME_free(xn); | |
866 | else { | |
867 | sk_X509_NAME_push(sk, xn); | |
868 | sk_X509_NAME_push(ret, xn); | |
869 | } | |
870 | } | |
871 | ||
872 | if (0) { | |
873 | err: | |
874 | if (ret != NULL) | |
875 | sk_X509_NAME_pop_free(ret, X509_NAME_free); | |
876 | ret = NULL; | |
877 | } | |
878 | if (sk != NULL) | |
879 | sk_X509_NAME_free(sk); | |
880 | if (in != NULL) | |
881 | BIO_free(in); | |
882 | if (x != NULL) | |
883 | X509_free(x); | |
884 | if (ret != NULL) | |
885 | ERR_clear_error(); | |
886 | return (ret); | |
887 | } | |
58964a49 | 888 | #endif |
d02b48c6 | 889 | |
0f113f3e | 890 | /** |
eb90a483 BL |
891 | * Add a file of certs to a stack. |
892 | * \param stack the stack to add to. | |
893 | * \param file the file to add from. All certs in this file that are not | |
894 | * already in the stack will be added. | |
895 | * \return 1 for success, 0 for failure. Note that in the case of failure some | |
896 | * certs may have been added to \c stack. | |
897 | */ | |
898 | ||
661b361b | 899 | int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, |
0f113f3e MC |
900 | const char *file) |
901 | { | |
902 | BIO *in; | |
903 | X509 *x = NULL; | |
904 | X509_NAME *xn = NULL; | |
905 | int ret = 1; | |
906 | int (*oldcmp) (const X509_NAME *const *a, const X509_NAME *const *b); | |
907 | ||
908 | oldcmp = sk_X509_NAME_set_cmp_func(stack, xname_cmp); | |
909 | ||
910 | in = BIO_new(BIO_s_file_internal()); | |
911 | ||
912 | if (in == NULL) { | |
913 | SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK, | |
914 | ERR_R_MALLOC_FAILURE); | |
915 | goto err; | |
916 | } | |
917 | ||
918 | if (!BIO_read_filename(in, file)) | |
919 | goto err; | |
920 | ||
921 | for (;;) { | |
922 | if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) | |
923 | break; | |
924 | if ((xn = X509_get_subject_name(x)) == NULL) | |
925 | goto err; | |
926 | xn = X509_NAME_dup(xn); | |
927 | if (xn == NULL) | |
928 | goto err; | |
929 | if (sk_X509_NAME_find(stack, xn) >= 0) | |
930 | X509_NAME_free(xn); | |
931 | else | |
932 | sk_X509_NAME_push(stack, xn); | |
933 | } | |
934 | ||
935 | ERR_clear_error(); | |
936 | ||
937 | if (0) { | |
938 | err: | |
939 | ret = 0; | |
940 | } | |
941 | if (in != NULL) | |
942 | BIO_free(in); | |
943 | if (x != NULL) | |
944 | X509_free(x); | |
945 | ||
946 | (void)sk_X509_NAME_set_cmp_func(stack, oldcmp); | |
947 | ||
948 | return ret; | |
949 | } | |
950 | ||
951 | /** | |
eb90a483 BL |
952 | * Add a directory of certs to a stack. |
953 | * \param stack the stack to append to. | |
954 | * \param dir the directory to append from. All files in this directory will be | |
955 | * examined as potential certs. Any that are acceptable to | |
72e442a3 | 956 | * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will be |
eb90a483 BL |
957 | * included. |
958 | * \return 1 for success, 0 for failure. Note that in the case of failure some | |
959 | * certs may have been added to \c stack. | |
960 | */ | |
961 | ||
661b361b | 962 | int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, |
0f113f3e MC |
963 | const char *dir) |
964 | { | |
965 | OPENSSL_DIR_CTX *d = NULL; | |
966 | const char *filename; | |
967 | int ret = 0; | |
eb90a483 | 968 | |
0f113f3e | 969 | CRYPTO_w_lock(CRYPTO_LOCK_READDIR); |
4083a229 | 970 | |
0f113f3e | 971 | /* Note that a side effect is that the CAs will be sorted by name */ |
4083a229 | 972 | |
0f113f3e MC |
973 | while ((filename = OPENSSL_DIR_read(&d, dir))) { |
974 | char buf[1024]; | |
975 | int r; | |
4083a229 | 976 | |
0f113f3e MC |
977 | if (strlen(dir) + strlen(filename) + 2 > sizeof buf) { |
978 | SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, | |
979 | SSL_R_PATH_TOO_LONG); | |
980 | goto err; | |
981 | } | |
4083a229 | 982 | #ifdef OPENSSL_SYS_VMS |
0f113f3e | 983 | r = BIO_snprintf(buf, sizeof buf, "%s%s", dir, filename); |
4083a229 | 984 | #else |
0f113f3e | 985 | r = BIO_snprintf(buf, sizeof buf, "%s/%s", dir, filename); |
4083a229 | 986 | #endif |
0f113f3e MC |
987 | if (r <= 0 || r >= (int)sizeof(buf)) |
988 | goto err; | |
989 | if (!SSL_add_file_cert_subjects_to_stack(stack, buf)) | |
990 | goto err; | |
991 | } | |
992 | ||
993 | if (errno) { | |
994 | SYSerr(SYS_F_OPENDIR, get_last_sys_error()); | |
995 | ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir, "')"); | |
996 | SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB); | |
997 | goto err; | |
998 | } | |
999 | ||
1000 | ret = 1; | |
1001 | ||
1002 | err: | |
1003 | if (d) | |
1004 | OPENSSL_DIR_end(&d); | |
1005 | CRYPTO_w_unlock(CRYPTO_LOCK_READDIR); | |
1006 | return ret; | |
1007 | } | |
285046ec | 1008 | |
4379d0e4 DSH |
1009 | /* Add a certificate to a BUF_MEM structure */ |
1010 | ||
1011 | static int ssl_add_cert_to_buf(BUF_MEM *buf, unsigned long *l, X509 *x) | |
0f113f3e MC |
1012 | { |
1013 | int n; | |
1014 | unsigned char *p; | |
1015 | ||
1016 | n = i2d_X509(x, NULL); | |
1017 | if (!BUF_MEM_grow_clean(buf, (int)(n + (*l) + 3))) { | |
1018 | SSLerr(SSL_F_SSL_ADD_CERT_TO_BUF, ERR_R_BUF_LIB); | |
1019 | return 0; | |
1020 | } | |
1021 | p = (unsigned char *)&(buf->data[*l]); | |
1022 | l2n3(n, p); | |
1023 | i2d_X509(x, &p); | |
1024 | *l += n + 3; | |
1025 | ||
1026 | return 1; | |
1027 | } | |
4379d0e4 DSH |
1028 | |
1029 | /* Add certificate chain to internal SSL BUF_MEM strcuture */ | |
c526ed41 | 1030 | int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l) |
0f113f3e MC |
1031 | { |
1032 | BUF_MEM *buf = s->init_buf; | |
1033 | int i; | |
1034 | ||
1035 | X509 *x; | |
1036 | STACK_OF(X509) *extra_certs; | |
1037 | X509_STORE *chain_store; | |
1038 | ||
1039 | /* TLSv1 sends a chain with nothing in it, instead of an alert */ | |
1040 | if (!BUF_MEM_grow_clean(buf, 10)) { | |
1041 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, ERR_R_BUF_LIB); | |
1042 | return 0; | |
1043 | } | |
1044 | ||
1045 | if (!cpk || !cpk->x509) | |
1046 | return 1; | |
1047 | ||
1048 | x = cpk->x509; | |
1049 | ||
1050 | /* | |
1051 | * If we have a certificate specific chain use it, else use parent ctx. | |
1052 | */ | |
1053 | if (cpk->chain) | |
1054 | extra_certs = cpk->chain; | |
1055 | else | |
1056 | extra_certs = s->ctx->extra_certs; | |
1057 | ||
1058 | if ((s->mode & SSL_MODE_NO_AUTO_CHAIN) || extra_certs) | |
1059 | chain_store = NULL; | |
1060 | else if (s->cert->chain_store) | |
1061 | chain_store = s->cert->chain_store; | |
1062 | else | |
1063 | chain_store = s->ctx->cert_store; | |
1064 | ||
1065 | if (chain_store) { | |
1066 | X509_STORE_CTX xs_ctx; | |
1067 | ||
1068 | if (!X509_STORE_CTX_init(&xs_ctx, chain_store, x, NULL)) { | |
1069 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, ERR_R_X509_LIB); | |
1070 | return (0); | |
1071 | } | |
1072 | X509_verify_cert(&xs_ctx); | |
1073 | /* Don't leave errors in the queue */ | |
1074 | ERR_clear_error(); | |
1075 | i = ssl_security_cert_chain(s, xs_ctx.chain, NULL, 0); | |
1076 | if (i != 1) { | |
1077 | X509_STORE_CTX_cleanup(&xs_ctx); | |
1078 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, i); | |
1079 | return 0; | |
1080 | } | |
1081 | for (i = 0; i < sk_X509_num(xs_ctx.chain); i++) { | |
1082 | x = sk_X509_value(xs_ctx.chain, i); | |
1083 | ||
1084 | if (!ssl_add_cert_to_buf(buf, l, x)) { | |
1085 | X509_STORE_CTX_cleanup(&xs_ctx); | |
1086 | return 0; | |
1087 | } | |
1088 | } | |
1089 | X509_STORE_CTX_cleanup(&xs_ctx); | |
1090 | } else { | |
1091 | i = ssl_security_cert_chain(s, extra_certs, x, 0); | |
1092 | if (i != 1) { | |
1093 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, i); | |
1094 | return 0; | |
1095 | } | |
1096 | if (!ssl_add_cert_to_buf(buf, l, x)) | |
1097 | return 0; | |
1098 | for (i = 0; i < sk_X509_num(extra_certs); i++) { | |
1099 | x = sk_X509_value(extra_certs, i); | |
1100 | if (!ssl_add_cert_to_buf(buf, l, x)) | |
1101 | return 0; | |
1102 | } | |
1103 | } | |
1104 | return 1; | |
1105 | } | |
4379d0e4 | 1106 | |
74ecfab4 | 1107 | /* Build a certificate chain for current certificate */ |
b362ccab | 1108 | int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags) |
0f113f3e MC |
1109 | { |
1110 | CERT *c = s ? s->cert : ctx->cert; | |
1111 | CERT_PKEY *cpk = c->key; | |
1112 | X509_STORE *chain_store = NULL; | |
1113 | X509_STORE_CTX xs_ctx; | |
1114 | STACK_OF(X509) *chain = NULL, *untrusted = NULL; | |
1115 | X509 *x; | |
1116 | int i, rv = 0; | |
1117 | unsigned long error; | |
1118 | ||
1119 | if (!cpk->x509) { | |
1120 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, SSL_R_NO_CERTIFICATE_SET); | |
1121 | goto err; | |
1122 | } | |
1123 | /* Rearranging and check the chain: add everything to a store */ | |
1124 | if (flags & SSL_BUILD_CHAIN_FLAG_CHECK) { | |
1125 | chain_store = X509_STORE_new(); | |
1126 | if (!chain_store) | |
1127 | goto err; | |
1128 | for (i = 0; i < sk_X509_num(cpk->chain); i++) { | |
1129 | x = sk_X509_value(cpk->chain, i); | |
1130 | if (!X509_STORE_add_cert(chain_store, x)) { | |
1131 | error = ERR_peek_last_error(); | |
1132 | if (ERR_GET_LIB(error) != ERR_LIB_X509 || | |
1133 | ERR_GET_REASON(error) != | |
1134 | X509_R_CERT_ALREADY_IN_HASH_TABLE) | |
1135 | goto err; | |
1136 | ERR_clear_error(); | |
1137 | } | |
1138 | } | |
1139 | /* Add EE cert too: it might be self signed */ | |
1140 | if (!X509_STORE_add_cert(chain_store, cpk->x509)) { | |
1141 | error = ERR_peek_last_error(); | |
1142 | if (ERR_GET_LIB(error) != ERR_LIB_X509 || | |
1143 | ERR_GET_REASON(error) != X509_R_CERT_ALREADY_IN_HASH_TABLE) | |
1144 | goto err; | |
1145 | ERR_clear_error(); | |
1146 | } | |
1147 | } else { | |
1148 | if (c->chain_store) | |
1149 | chain_store = c->chain_store; | |
1150 | else if (s) | |
1151 | chain_store = s->ctx->cert_store; | |
1152 | else | |
1153 | chain_store = ctx->cert_store; | |
1154 | ||
1155 | if (flags & SSL_BUILD_CHAIN_FLAG_UNTRUSTED) | |
1156 | untrusted = cpk->chain; | |
1157 | } | |
1158 | ||
1159 | if (!X509_STORE_CTX_init(&xs_ctx, chain_store, cpk->x509, untrusted)) { | |
1160 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, ERR_R_X509_LIB); | |
1161 | goto err; | |
1162 | } | |
1163 | /* Set suite B flags if needed */ | |
1164 | X509_STORE_CTX_set_flags(&xs_ctx, | |
1165 | c->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS); | |
1166 | ||
1167 | i = X509_verify_cert(&xs_ctx); | |
1168 | if (i <= 0 && flags & SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR) { | |
1169 | if (flags & SSL_BUILD_CHAIN_FLAG_CLEAR_ERROR) | |
1170 | ERR_clear_error(); | |
1171 | i = 1; | |
1172 | rv = 2; | |
1173 | } | |
1174 | if (i > 0) | |
1175 | chain = X509_STORE_CTX_get1_chain(&xs_ctx); | |
1176 | if (i <= 0) { | |
1177 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, SSL_R_CERTIFICATE_VERIFY_FAILED); | |
1178 | i = X509_STORE_CTX_get_error(&xs_ctx); | |
1179 | ERR_add_error_data(2, "Verify error:", | |
1180 | X509_verify_cert_error_string(i)); | |
1181 | ||
1182 | X509_STORE_CTX_cleanup(&xs_ctx); | |
1183 | goto err; | |
1184 | } | |
1185 | X509_STORE_CTX_cleanup(&xs_ctx); | |
1186 | /* Remove EE certificate from chain */ | |
1187 | x = sk_X509_shift(chain); | |
1188 | X509_free(x); | |
1189 | if (flags & SSL_BUILD_CHAIN_FLAG_NO_ROOT) { | |
1190 | if (sk_X509_num(chain) > 0) { | |
1191 | /* See if last cert is self signed */ | |
1192 | x = sk_X509_value(chain, sk_X509_num(chain) - 1); | |
1193 | X509_check_purpose(x, -1, 0); | |
1194 | if (x->ex_flags & EXFLAG_SS) { | |
1195 | x = sk_X509_pop(chain); | |
1196 | X509_free(x); | |
1197 | } | |
1198 | } | |
1199 | } | |
1200 | /* | |
1201 | * Check security level of all CA certificates: EE will have been checked | |
1202 | * already. | |
1203 | */ | |
1204 | for (i = 0; i < sk_X509_num(chain); i++) { | |
1205 | x = sk_X509_value(chain, i); | |
1206 | rv = ssl_security_cert(s, ctx, x, 0, 0); | |
1207 | if (rv != 1) { | |
1208 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, rv); | |
1209 | sk_X509_pop_free(chain, X509_free); | |
1210 | rv = 0; | |
1211 | goto err; | |
1212 | } | |
1213 | } | |
1214 | if (cpk->chain) | |
1215 | sk_X509_pop_free(cpk->chain, X509_free); | |
1216 | cpk->chain = chain; | |
1217 | if (rv == 0) | |
1218 | rv = 1; | |
1219 | err: | |
1220 | if (flags & SSL_BUILD_CHAIN_FLAG_CHECK) | |
1221 | X509_STORE_free(chain_store); | |
1222 | ||
1223 | return rv; | |
1224 | } | |
74ecfab4 DSH |
1225 | |
1226 | int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref) | |
0f113f3e MC |
1227 | { |
1228 | X509_STORE **pstore; | |
1229 | if (chain) | |
1230 | pstore = &c->chain_store; | |
1231 | else | |
1232 | pstore = &c->verify_store; | |
1233 | if (*pstore) | |
1234 | X509_STORE_free(*pstore); | |
1235 | *pstore = store; | |
1236 | if (ref && store) | |
1237 | CRYPTO_add(&store->references, 1, CRYPTO_LOCK_X509_STORE); | |
1238 | return 1; | |
1239 | } | |
1240 | ||
1241 | static int ssl_security_default_callback(SSL *s, SSL_CTX *ctx, int op, | |
1242 | int bits, int nid, void *other, | |
1243 | void *ex) | |
1244 | { | |
1245 | int level, minbits; | |
1246 | static const int minbits_table[5] = { 80, 112, 128, 192, 256 }; | |
1247 | if (ctx) | |
1248 | level = SSL_CTX_get_security_level(ctx); | |
1249 | else | |
1250 | level = SSL_get_security_level(s); | |
1251 | /* Level 0: anything goes */ | |
1252 | if (level <= 0) | |
1253 | return 1; | |
1254 | if (level > 5) | |
1255 | level = 5; | |
1256 | minbits = minbits_table[level - 1]; | |
1257 | switch (op) { | |
1258 | case SSL_SECOP_CIPHER_SUPPORTED: | |
1259 | case SSL_SECOP_CIPHER_SHARED: | |
1260 | case SSL_SECOP_CIPHER_CHECK: | |
1261 | { | |
1262 | const SSL_CIPHER *c = other; | |
1263 | /* No ciphers below security level */ | |
1264 | if (bits < minbits) | |
1265 | return 0; | |
1266 | /* No unauthenticated ciphersuites */ | |
1267 | if (c->algorithm_auth & SSL_aNULL) | |
1268 | return 0; | |
1269 | /* No MD5 mac ciphersuites */ | |
1270 | if (c->algorithm_mac & SSL_MD5) | |
1271 | return 0; | |
1272 | /* SHA1 HMAC is 160 bits of security */ | |
1273 | if (minbits > 160 && c->algorithm_mac & SSL_SHA1) | |
1274 | return 0; | |
1275 | /* Level 2: no RC4 */ | |
1276 | if (level >= 2 && c->algorithm_enc == SSL_RC4) | |
1277 | return 0; | |
1278 | /* Level 3: forward secure ciphersuites only */ | |
1279 | if (level >= 3 && !(c->algorithm_mkey & (SSL_kEDH | SSL_kEECDH))) | |
1280 | return 0; | |
1281 | break; | |
1282 | } | |
1283 | case SSL_SECOP_VERSION: | |
1284 | /* SSLv3 not allowed on level 2 */ | |
1285 | if (nid <= SSL3_VERSION && level >= 2) | |
1286 | return 0; | |
1287 | /* TLS v1.1 and above only for level 3 */ | |
1288 | if (nid <= TLS1_VERSION && level >= 3) | |
1289 | return 0; | |
1290 | /* TLS v1.2 only for level 4 and above */ | |
1291 | if (nid <= TLS1_1_VERSION && level >= 4) | |
1292 | return 0; | |
1293 | break; | |
1294 | ||
1295 | case SSL_SECOP_COMPRESSION: | |
1296 | if (level >= 2) | |
1297 | return 0; | |
1298 | break; | |
1299 | case SSL_SECOP_TICKET: | |
1300 | if (level >= 3) | |
1301 | return 0; | |
1302 | break; | |
1303 | default: | |
1304 | if (bits < minbits) | |
1305 | return 0; | |
1306 | } | |
1307 | return 1; | |
1308 | } | |
b362ccab DSH |
1309 | |
1310 | int ssl_security(SSL *s, int op, int bits, int nid, void *other) | |
0f113f3e MC |
1311 | { |
1312 | return s->cert->sec_cb(s, NULL, op, bits, nid, other, s->cert->sec_ex); | |
1313 | } | |
b362ccab DSH |
1314 | |
1315 | int ssl_ctx_security(SSL_CTX *ctx, int op, int bits, int nid, void *other) | |
0f113f3e MC |
1316 | { |
1317 | return ctx->cert->sec_cb(NULL, ctx, op, bits, nid, other, | |
1318 | ctx->cert->sec_ex); | |
1319 | } |