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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 | ||
68570797 | 126 | #include "internal/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 | |
6b691a5c | 168 | CERT *ssl_cert_new(void) |
0f113f3e | 169 | { |
b4faea50 | 170 | CERT *ret = OPENSSL_malloc(sizeof(*ret)); |
0f113f3e | 171 | |
0f113f3e MC |
172 | if (ret == NULL) { |
173 | SSLerr(SSL_F_SSL_CERT_NEW, ERR_R_MALLOC_FAILURE); | |
174 | return (NULL); | |
175 | } | |
16f8d4eb | 176 | memset(ret, 0, sizeof(*ret)); |
0f113f3e MC |
177 | |
178 | ret->key = &(ret->pkeys[SSL_PKEY_RSA_ENC]); | |
179 | ret->references = 1; | |
0f113f3e MC |
180 | ret->sec_cb = ssl_security_default_callback; |
181 | ret->sec_level = OPENSSL_TLS_SECURITY_LEVEL; | |
182 | ret->sec_ex = NULL; | |
183 | return (ret); | |
184 | } | |
d02b48c6 | 185 | |
ca8e5b9b | 186 | CERT *ssl_cert_dup(CERT *cert) |
0f113f3e | 187 | { |
b4faea50 | 188 | CERT *ret = OPENSSL_malloc(sizeof(*ret)); |
0f113f3e MC |
189 | int i; |
190 | ||
0f113f3e MC |
191 | if (ret == NULL) { |
192 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); | |
193 | return (NULL); | |
194 | } | |
195 | ||
16f8d4eb | 196 | memset(ret, 0, sizeof(*ret)); |
0f113f3e | 197 | |
16f8d4eb | 198 | ret->key = &ret->pkeys[cert->key - cert->pkeys]; |
ca8e5b9b | 199 | |
bc36ee62 | 200 | #ifndef OPENSSL_NO_RSA |
0f113f3e MC |
201 | if (cert->rsa_tmp != NULL) { |
202 | RSA_up_ref(cert->rsa_tmp); | |
203 | ret->rsa_tmp = cert->rsa_tmp; | |
204 | } | |
205 | ret->rsa_tmp_cb = cert->rsa_tmp_cb; | |
ca8e5b9b BM |
206 | #endif |
207 | ||
bc36ee62 | 208 | #ifndef OPENSSL_NO_DH |
0f113f3e MC |
209 | if (cert->dh_tmp != NULL) { |
210 | ret->dh_tmp = DHparams_dup(cert->dh_tmp); | |
211 | if (ret->dh_tmp == NULL) { | |
212 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_DH_LIB); | |
213 | goto err; | |
214 | } | |
215 | if (cert->dh_tmp->priv_key) { | |
216 | BIGNUM *b = BN_dup(cert->dh_tmp->priv_key); | |
217 | if (!b) { | |
218 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_BN_LIB); | |
219 | goto err; | |
220 | } | |
221 | ret->dh_tmp->priv_key = b; | |
222 | } | |
223 | if (cert->dh_tmp->pub_key) { | |
224 | BIGNUM *b = BN_dup(cert->dh_tmp->pub_key); | |
225 | if (!b) { | |
226 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_BN_LIB); | |
227 | goto err; | |
228 | } | |
229 | ret->dh_tmp->pub_key = b; | |
230 | } | |
231 | } | |
232 | ret->dh_tmp_cb = cert->dh_tmp_cb; | |
233 | ret->dh_tmp_auto = cert->dh_tmp_auto; | |
ca8e5b9b BM |
234 | #endif |
235 | ||
10bf4fc2 | 236 | #ifndef OPENSSL_NO_EC |
0f113f3e MC |
237 | if (cert->ecdh_tmp) { |
238 | ret->ecdh_tmp = EC_KEY_dup(cert->ecdh_tmp); | |
239 | if (ret->ecdh_tmp == NULL) { | |
240 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_EC_LIB); | |
241 | goto err; | |
242 | } | |
243 | } | |
244 | ret->ecdh_tmp_cb = cert->ecdh_tmp_cb; | |
245 | ret->ecdh_tmp_auto = cert->ecdh_tmp_auto; | |
ea262260 BM |
246 | #endif |
247 | ||
0f113f3e MC |
248 | for (i = 0; i < SSL_PKEY_NUM; i++) { |
249 | CERT_PKEY *cpk = cert->pkeys + i; | |
250 | CERT_PKEY *rpk = ret->pkeys + i; | |
251 | if (cpk->x509 != NULL) { | |
252 | rpk->x509 = cpk->x509; | |
253 | CRYPTO_add(&rpk->x509->references, 1, CRYPTO_LOCK_X509); | |
254 | } | |
255 | ||
256 | if (cpk->privatekey != NULL) { | |
257 | rpk->privatekey = cpk->privatekey; | |
258 | CRYPTO_add(&cpk->privatekey->references, 1, CRYPTO_LOCK_EVP_PKEY); | |
259 | } | |
260 | ||
261 | if (cpk->chain) { | |
262 | rpk->chain = X509_chain_up_ref(cpk->chain); | |
263 | if (!rpk->chain) { | |
264 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); | |
265 | goto err; | |
266 | } | |
267 | } | |
0f113f3e MC |
268 | if (cert->pkeys[i].serverinfo != NULL) { |
269 | /* Just copy everything. */ | |
270 | ret->pkeys[i].serverinfo = | |
271 | OPENSSL_malloc(cert->pkeys[i].serverinfo_length); | |
272 | if (ret->pkeys[i].serverinfo == NULL) { | |
273 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); | |
274 | goto err; | |
275 | } | |
276 | ret->pkeys[i].serverinfo_length = | |
277 | cert->pkeys[i].serverinfo_length; | |
278 | memcpy(ret->pkeys[i].serverinfo, | |
279 | cert->pkeys[i].serverinfo, | |
280 | cert->pkeys[i].serverinfo_length); | |
281 | } | |
0f113f3e MC |
282 | } |
283 | ||
284 | ret->references = 1; | |
76106e60 | 285 | /* Configured sigalgs copied across */ |
0f113f3e MC |
286 | if (cert->conf_sigalgs) { |
287 | ret->conf_sigalgs = OPENSSL_malloc(cert->conf_sigalgslen); | |
288 | if (!ret->conf_sigalgs) | |
289 | goto err; | |
290 | memcpy(ret->conf_sigalgs, cert->conf_sigalgs, cert->conf_sigalgslen); | |
291 | ret->conf_sigalgslen = cert->conf_sigalgslen; | |
292 | } else | |
293 | ret->conf_sigalgs = NULL; | |
294 | ||
295 | if (cert->client_sigalgs) { | |
296 | ret->client_sigalgs = OPENSSL_malloc(cert->client_sigalgslen); | |
297 | if (!ret->client_sigalgs) | |
298 | goto err; | |
299 | memcpy(ret->client_sigalgs, cert->client_sigalgs, | |
300 | cert->client_sigalgslen); | |
301 | ret->client_sigalgslen = cert->client_sigalgslen; | |
302 | } else | |
303 | ret->client_sigalgs = NULL; | |
304 | /* Shared sigalgs also NULL */ | |
305 | ret->shared_sigalgs = NULL; | |
306 | /* Copy any custom client certificate types */ | |
307 | if (cert->ctypes) { | |
308 | ret->ctypes = OPENSSL_malloc(cert->ctype_num); | |
309 | if (!ret->ctypes) | |
310 | goto err; | |
311 | memcpy(ret->ctypes, cert->ctypes, cert->ctype_num); | |
312 | ret->ctype_num = cert->ctype_num; | |
313 | } | |
314 | ||
315 | ret->cert_flags = cert->cert_flags; | |
316 | ||
317 | ret->cert_cb = cert->cert_cb; | |
318 | ret->cert_cb_arg = cert->cert_cb_arg; | |
319 | ||
320 | if (cert->verify_store) { | |
321 | CRYPTO_add(&cert->verify_store->references, 1, | |
322 | CRYPTO_LOCK_X509_STORE); | |
323 | ret->verify_store = cert->verify_store; | |
324 | } | |
325 | ||
326 | if (cert->chain_store) { | |
327 | CRYPTO_add(&cert->chain_store->references, 1, CRYPTO_LOCK_X509_STORE); | |
328 | ret->chain_store = cert->chain_store; | |
329 | } | |
330 | ||
0f113f3e MC |
331 | ret->sec_cb = cert->sec_cb; |
332 | ret->sec_level = cert->sec_level; | |
333 | ret->sec_ex = cert->sec_ex; | |
b362ccab | 334 | |
0f113f3e MC |
335 | if (!custom_exts_copy(&ret->cli_ext, &cert->cli_ext)) |
336 | goto err; | |
337 | if (!custom_exts_copy(&ret->srv_ext, &cert->srv_ext)) | |
338 | goto err; | |
b83294fe | 339 | |
0f113f3e MC |
340 | return (ret); |
341 | ||
342 | err: | |
343 | ssl_cert_free(ret); | |
9ade64de | 344 | |
0f113f3e MC |
345 | return NULL; |
346 | } | |
ca8e5b9b | 347 | |
a5ee80b9 DSH |
348 | /* Free up and clear all certificates and chains */ |
349 | ||
350 | void ssl_cert_clear_certs(CERT *c) | |
0f113f3e MC |
351 | { |
352 | int i; | |
353 | if (c == NULL) | |
354 | return; | |
355 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
356 | CERT_PKEY *cpk = c->pkeys + i; | |
222561fe RS |
357 | X509_free(cpk->x509); |
358 | cpk->x509 = NULL; | |
c5ba2d99 RS |
359 | EVP_PKEY_free(cpk->privatekey); |
360 | cpk->privatekey = NULL; | |
222561fe RS |
361 | sk_X509_pop_free(cpk->chain, X509_free); |
362 | cpk->chain = NULL; | |
25aaa98a RS |
363 | OPENSSL_free(cpk->serverinfo); |
364 | cpk->serverinfo = NULL; | |
365 | cpk->serverinfo_length = 0; | |
0f113f3e MC |
366 | } |
367 | } | |
ca8e5b9b | 368 | |
eb90a483 | 369 | void ssl_cert_free(CERT *c) |
0f113f3e MC |
370 | { |
371 | int i; | |
d02b48c6 | 372 | |
0f113f3e MC |
373 | if (c == NULL) |
374 | return; | |
e03ddfae | 375 | |
0f113f3e | 376 | i = CRYPTO_add(&c->references, -1, CRYPTO_LOCK_SSL_CERT); |
58964a49 | 377 | #ifdef REF_PRINT |
0f113f3e | 378 | REF_PRINT("CERT", c); |
58964a49 | 379 | #endif |
0f113f3e MC |
380 | if (i > 0) |
381 | return; | |
d02b48c6 | 382 | #ifdef REF_CHECK |
0f113f3e MC |
383 | if (i < 0) { |
384 | fprintf(stderr, "ssl_cert_free, bad reference count\n"); | |
385 | abort(); /* ok */ | |
386 | } | |
d02b48c6 RE |
387 | #endif |
388 | ||
bc36ee62 | 389 | #ifndef OPENSSL_NO_RSA |
d6407083 | 390 | RSA_free(c->rsa_tmp); |
d02b48c6 | 391 | #endif |
bc36ee62 | 392 | #ifndef OPENSSL_NO_DH |
d6407083 | 393 | DH_free(c->dh_tmp); |
d02b48c6 | 394 | #endif |
10bf4fc2 | 395 | #ifndef OPENSSL_NO_EC |
8fdc3734 | 396 | EC_KEY_free(c->ecdh_tmp); |
ea262260 | 397 | #endif |
d02b48c6 | 398 | |
0f113f3e | 399 | ssl_cert_clear_certs(c); |
25aaa98a RS |
400 | OPENSSL_free(c->conf_sigalgs); |
401 | OPENSSL_free(c->client_sigalgs); | |
402 | OPENSSL_free(c->shared_sigalgs); | |
403 | OPENSSL_free(c->ctypes); | |
222561fe RS |
404 | X509_STORE_free(c->verify_store); |
405 | X509_STORE_free(c->chain_store); | |
0f113f3e MC |
406 | custom_exts_free(&c->cli_ext); |
407 | custom_exts_free(&c->srv_ext); | |
0f113f3e MC |
408 | OPENSSL_free(c); |
409 | } | |
d02b48c6 | 410 | |
b362ccab | 411 | int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain) |
0f113f3e MC |
412 | { |
413 | int i, r; | |
414 | CERT_PKEY *cpk = s ? s->cert->key : ctx->cert->key; | |
415 | if (!cpk) | |
416 | return 0; | |
222561fe | 417 | sk_X509_pop_free(cpk->chain, X509_free); |
0f113f3e MC |
418 | for (i = 0; i < sk_X509_num(chain); i++) { |
419 | r = ssl_security_cert(s, ctx, sk_X509_value(chain, i), 0, 0); | |
420 | if (r != 1) { | |
421 | SSLerr(SSL_F_SSL_CERT_SET0_CHAIN, r); | |
422 | return 0; | |
423 | } | |
424 | } | |
425 | cpk->chain = chain; | |
426 | return 1; | |
427 | } | |
f71c6e52 | 428 | |
b362ccab | 429 | int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain) |
0f113f3e MC |
430 | { |
431 | STACK_OF(X509) *dchain; | |
432 | if (!chain) | |
433 | return ssl_cert_set0_chain(s, ctx, NULL); | |
434 | dchain = X509_chain_up_ref(chain); | |
435 | if (!dchain) | |
436 | return 0; | |
437 | if (!ssl_cert_set0_chain(s, ctx, dchain)) { | |
438 | sk_X509_pop_free(dchain, X509_free); | |
439 | return 0; | |
440 | } | |
441 | return 1; | |
442 | } | |
f71c6e52 | 443 | |
b362ccab | 444 | int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x) |
0f113f3e MC |
445 | { |
446 | int r; | |
447 | CERT_PKEY *cpk = s ? s->cert->key : ctx->cert->key; | |
448 | if (!cpk) | |
449 | return 0; | |
450 | r = ssl_security_cert(s, ctx, x, 0, 0); | |
451 | if (r != 1) { | |
452 | SSLerr(SSL_F_SSL_CERT_ADD0_CHAIN_CERT, r); | |
453 | return 0; | |
454 | } | |
455 | if (!cpk->chain) | |
456 | cpk->chain = sk_X509_new_null(); | |
457 | if (!cpk->chain || !sk_X509_push(cpk->chain, x)) | |
458 | return 0; | |
459 | return 1; | |
460 | } | |
f71c6e52 | 461 | |
b362ccab | 462 | int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x) |
0f113f3e MC |
463 | { |
464 | if (!ssl_cert_add0_chain_cert(s, ctx, x)) | |
465 | return 0; | |
466 | CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509); | |
467 | return 1; | |
468 | } | |
7b6b246f RS |
469 | |
470 | int ssl_cert_select_current(CERT *c, X509 *x) | |
0f113f3e MC |
471 | { |
472 | int i; | |
473 | if (x == NULL) | |
474 | return 0; | |
475 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
476 | CERT_PKEY *cpk = c->pkeys + i; | |
477 | if (cpk->x509 == x && cpk->privatekey) { | |
478 | c->key = cpk; | |
479 | return 1; | |
480 | } | |
481 | } | |
482 | ||
483 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
484 | CERT_PKEY *cpk = c->pkeys + i; | |
485 | if (cpk->privatekey && cpk->x509 && !X509_cmp(cpk->x509, x)) { | |
486 | c->key = cpk; | |
487 | return 1; | |
488 | } | |
489 | } | |
490 | return 0; | |
491 | } | |
0f78819c DSH |
492 | |
493 | int ssl_cert_set_current(CERT *c, long op) | |
0f113f3e MC |
494 | { |
495 | int i, idx; | |
496 | if (!c) | |
497 | return 0; | |
498 | if (op == SSL_CERT_SET_FIRST) | |
499 | idx = 0; | |
500 | else if (op == SSL_CERT_SET_NEXT) { | |
501 | idx = (int)(c->key - c->pkeys + 1); | |
502 | if (idx >= SSL_PKEY_NUM) | |
503 | return 0; | |
504 | } else | |
505 | return 0; | |
506 | for (i = idx; i < SSL_PKEY_NUM; i++) { | |
507 | CERT_PKEY *cpk = c->pkeys + i; | |
508 | if (cpk->x509 && cpk->privatekey) { | |
509 | c->key = cpk; | |
510 | return 1; | |
511 | } | |
512 | } | |
513 | return 0; | |
514 | } | |
515 | ||
516 | void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg), void *arg) | |
517 | { | |
518 | c->cert_cb = cb; | |
519 | c->cert_cb_arg = arg; | |
520 | } | |
18d71588 | 521 | |
b56bce4f | 522 | SESS_CERT *ssl_sess_cert_new(void) |
0f113f3e MC |
523 | { |
524 | SESS_CERT *ret; | |
b56bce4f | 525 | |
b4faea50 | 526 | ret = OPENSSL_malloc(sizeof(*ret)); |
0f113f3e MC |
527 | if (ret == NULL) { |
528 | SSLerr(SSL_F_SSL_SESS_CERT_NEW, ERR_R_MALLOC_FAILURE); | |
529 | return NULL; | |
530 | } | |
b56bce4f | 531 | |
b4faea50 | 532 | memset(ret, 0, sizeof(*ret)); |
0f113f3e MC |
533 | ret->peer_key = &(ret->peer_pkeys[SSL_PKEY_RSA_ENC]); |
534 | ret->references = 1; | |
b56bce4f | 535 | |
0f113f3e MC |
536 | return ret; |
537 | } | |
b56bce4f BM |
538 | |
539 | void ssl_sess_cert_free(SESS_CERT *sc) | |
0f113f3e MC |
540 | { |
541 | int i; | |
b56bce4f | 542 | |
0f113f3e MC |
543 | if (sc == NULL) |
544 | return; | |
b56bce4f | 545 | |
0f113f3e | 546 | i = CRYPTO_add(&sc->references, -1, CRYPTO_LOCK_SSL_SESS_CERT); |
b56bce4f | 547 | #ifdef REF_PRINT |
0f113f3e | 548 | REF_PRINT("SESS_CERT", sc); |
b56bce4f | 549 | #endif |
0f113f3e MC |
550 | if (i > 0) |
551 | return; | |
b56bce4f | 552 | #ifdef REF_CHECK |
0f113f3e MC |
553 | if (i < 0) { |
554 | fprintf(stderr, "ssl_sess_cert_free, bad reference count\n"); | |
555 | abort(); /* ok */ | |
556 | } | |
ca8e5b9b | 557 | #endif |
15d21c2d | 558 | |
0f113f3e | 559 | /* i == 0 */ |
222561fe | 560 | sk_X509_pop_free(sc->cert_chain, X509_free); |
0f113f3e | 561 | for (i = 0; i < SSL_PKEY_NUM; i++) { |
222561fe | 562 | X509_free(sc->peer_pkeys[i].x509); |
9e9858d1 RS |
563 | #if 0 |
564 | /* | |
25aaa98a | 565 | * We don't have the peer's private key. This line is just |
9e9858d1 RS |
566 | * here as a reminder that we're still using a not-quite-appropriate |
567 | * data structure. | |
568 | */ | |
25aaa98a | 569 | EVP_PKEY_free(sc->peer_pkeys[i].privatekey); |
b56bce4f | 570 | #endif |
0f113f3e | 571 | } |
b56bce4f | 572 | |
0f113f3e MC |
573 | OPENSSL_free(sc); |
574 | } | |
575 | ||
576 | int ssl_set_peer_cert_type(SESS_CERT *sc, int type) | |
577 | { | |
578 | sc->peer_cert_type = type; | |
579 | return (1); | |
580 | } | |
581 | ||
582 | int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk) | |
583 | { | |
584 | X509 *x; | |
585 | int i; | |
586 | X509_STORE *verify_store; | |
587 | X509_STORE_CTX ctx; | |
588 | ||
589 | if (s->cert->verify_store) | |
590 | verify_store = s->cert->verify_store; | |
591 | else | |
592 | verify_store = s->ctx->cert_store; | |
593 | ||
594 | if ((sk == NULL) || (sk_X509_num(sk) == 0)) | |
595 | return (0); | |
596 | ||
597 | x = sk_X509_value(sk, 0); | |
598 | if (!X509_STORE_CTX_init(&ctx, verify_store, x, sk)) { | |
599 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, ERR_R_X509_LIB); | |
600 | return (0); | |
601 | } | |
602 | /* Set suite B flags if needed */ | |
603 | X509_STORE_CTX_set_flags(&ctx, tls1_suiteb(s)); | |
0f113f3e MC |
604 | X509_STORE_CTX_set_ex_data(&ctx, SSL_get_ex_data_X509_STORE_CTX_idx(), s); |
605 | ||
606 | /* | |
607 | * We need to inherit the verify parameters. These can be determined by | |
608 | * the context: if its a server it will verify SSL client certificates or | |
609 | * vice versa. | |
610 | */ | |
611 | ||
612 | X509_STORE_CTX_set_default(&ctx, s->server ? "ssl_client" : "ssl_server"); | |
613 | /* | |
614 | * Anything non-default in "param" should overwrite anything in the ctx. | |
615 | */ | |
616 | X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(&ctx), s->param); | |
617 | ||
618 | if (s->verify_callback) | |
619 | X509_STORE_CTX_set_verify_cb(&ctx, s->verify_callback); | |
620 | ||
621 | if (s->ctx->app_verify_callback != NULL) | |
0f113f3e | 622 | i = s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg); |
0f113f3e | 623 | else { |
0f113f3e MC |
624 | i = X509_verify_cert(&ctx); |
625 | # if 0 | |
626 | /* Dummy error calls so mkerr generates them */ | |
627 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, SSL_R_EE_KEY_TOO_SMALL); | |
628 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, SSL_R_CA_KEY_TOO_SMALL); | |
629 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, SSL_R_CA_MD_TOO_WEAK); | |
630 | # endif | |
631 | if (i > 0) | |
632 | i = ssl_security_cert_chain(s, ctx.chain, NULL, 1); | |
0f113f3e | 633 | } |
d02b48c6 | 634 | |
0f113f3e MC |
635 | s->verify_result = ctx.error; |
636 | X509_STORE_CTX_cleanup(&ctx); | |
d02b48c6 | 637 | |
0f113f3e MC |
638 | return (i); |
639 | } | |
d02b48c6 | 640 | |
0f113f3e MC |
641 | static void set_client_CA_list(STACK_OF(X509_NAME) **ca_list, |
642 | STACK_OF(X509_NAME) *name_list) | |
643 | { | |
222561fe | 644 | sk_X509_NAME_pop_free(*ca_list, X509_NAME_free); |
0f113f3e MC |
645 | *ca_list = name_list; |
646 | } | |
d02b48c6 | 647 | |
838d25a1 | 648 | STACK_OF(X509_NAME) *SSL_dup_CA_list(STACK_OF(X509_NAME) *sk) |
0f113f3e MC |
649 | { |
650 | int i; | |
651 | STACK_OF(X509_NAME) *ret; | |
652 | X509_NAME *name; | |
653 | ||
654 | ret = sk_X509_NAME_new_null(); | |
655 | for (i = 0; i < sk_X509_NAME_num(sk); i++) { | |
656 | name = X509_NAME_dup(sk_X509_NAME_value(sk, i)); | |
657 | if ((name == NULL) || !sk_X509_NAME_push(ret, name)) { | |
658 | sk_X509_NAME_pop_free(ret, X509_NAME_free); | |
659 | return (NULL); | |
660 | } | |
661 | } | |
662 | return (ret); | |
663 | } | |
664 | ||
665 | void SSL_set_client_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list) | |
666 | { | |
667 | set_client_CA_list(&(s->client_CA), name_list); | |
668 | } | |
669 | ||
670 | void SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list) | |
671 | { | |
672 | set_client_CA_list(&(ctx->client_CA), name_list); | |
673 | } | |
d02b48c6 | 674 | |
0821bcd4 | 675 | STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *ctx) |
0f113f3e MC |
676 | { |
677 | return (ctx->client_CA); | |
678 | } | |
d02b48c6 | 679 | |
0821bcd4 | 680 | STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s) |
0f113f3e MC |
681 | { |
682 | if (s->type == SSL_ST_CONNECT) { /* we are in the client */ | |
683 | if (((s->version >> 8) == SSL3_VERSION_MAJOR) && (s->s3 != NULL)) | |
684 | return (s->s3->tmp.ca_names); | |
685 | else | |
686 | return (NULL); | |
687 | } else { | |
688 | if (s->client_CA != NULL) | |
689 | return (s->client_CA); | |
690 | else | |
691 | return (s->ctx->client_CA); | |
692 | } | |
693 | } | |
694 | ||
695 | static int add_client_CA(STACK_OF(X509_NAME) **sk, X509 *x) | |
696 | { | |
697 | X509_NAME *name; | |
698 | ||
699 | if (x == NULL) | |
700 | return (0); | |
701 | if ((*sk == NULL) && ((*sk = sk_X509_NAME_new_null()) == NULL)) | |
702 | return (0); | |
703 | ||
704 | if ((name = X509_NAME_dup(X509_get_subject_name(x))) == NULL) | |
705 | return (0); | |
706 | ||
707 | if (!sk_X509_NAME_push(*sk, name)) { | |
708 | X509_NAME_free(name); | |
709 | return (0); | |
710 | } | |
711 | return (1); | |
712 | } | |
713 | ||
714 | int SSL_add_client_CA(SSL *ssl, X509 *x) | |
715 | { | |
716 | return (add_client_CA(&(ssl->client_CA), x)); | |
717 | } | |
718 | ||
719 | int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *x) | |
720 | { | |
721 | return (add_client_CA(&(ctx->client_CA), x)); | |
722 | } | |
723 | ||
724 | static int xname_cmp(const X509_NAME *const *a, const X509_NAME *const *b) | |
725 | { | |
726 | return (X509_NAME_cmp(*a, *b)); | |
727 | } | |
d02b48c6 | 728 | |
bc36ee62 | 729 | #ifndef OPENSSL_NO_STDIO |
0f113f3e | 730 | /** |
eb90a483 BL |
731 | * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed; |
732 | * it doesn't really have anything to do with clients (except that a common use | |
733 | * for a stack of CAs is to send it to the client). Actually, it doesn't have | |
734 | * much to do with CAs, either, since it will load any old cert. | |
735 | * \param file the file containing one or more certs. | |
736 | * \return a ::STACK containing the certs. | |
737 | */ | |
f73e07cf | 738 | STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file) |
0f113f3e MC |
739 | { |
740 | BIO *in; | |
741 | X509 *x = NULL; | |
742 | X509_NAME *xn = NULL; | |
743 | STACK_OF(X509_NAME) *ret = NULL, *sk; | |
744 | ||
745 | sk = sk_X509_NAME_new(xname_cmp); | |
746 | ||
747 | in = BIO_new(BIO_s_file_internal()); | |
748 | ||
749 | if ((sk == NULL) || (in == NULL)) { | |
750 | SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE, ERR_R_MALLOC_FAILURE); | |
751 | goto err; | |
752 | } | |
753 | ||
754 | if (!BIO_read_filename(in, file)) | |
755 | goto err; | |
756 | ||
757 | for (;;) { | |
758 | if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) | |
759 | break; | |
760 | if (ret == NULL) { | |
761 | ret = sk_X509_NAME_new_null(); | |
762 | if (ret == NULL) { | |
763 | SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE, ERR_R_MALLOC_FAILURE); | |
764 | goto err; | |
765 | } | |
766 | } | |
767 | if ((xn = X509_get_subject_name(x)) == NULL) | |
768 | goto err; | |
769 | /* check for duplicates */ | |
770 | xn = X509_NAME_dup(xn); | |
771 | if (xn == NULL) | |
772 | goto err; | |
773 | if (sk_X509_NAME_find(sk, xn) >= 0) | |
774 | X509_NAME_free(xn); | |
775 | else { | |
776 | sk_X509_NAME_push(sk, xn); | |
777 | sk_X509_NAME_push(ret, xn); | |
778 | } | |
779 | } | |
66696478 | 780 | goto done; |
0f113f3e | 781 | |
0f113f3e | 782 | err: |
66696478 RS |
783 | sk_X509_NAME_pop_free(ret, X509_NAME_free); |
784 | ret = NULL; | |
785 | done: | |
222561fe | 786 | sk_X509_NAME_free(sk); |
ca3a82c3 | 787 | BIO_free(in); |
222561fe | 788 | X509_free(x); |
0f113f3e MC |
789 | if (ret != NULL) |
790 | ERR_clear_error(); | |
791 | return (ret); | |
792 | } | |
58964a49 | 793 | #endif |
d02b48c6 | 794 | |
0f113f3e | 795 | /** |
eb90a483 BL |
796 | * Add a file of certs to a stack. |
797 | * \param stack the stack to add to. | |
798 | * \param file the file to add from. All certs in this file that are not | |
799 | * already in the stack will be added. | |
800 | * \return 1 for success, 0 for failure. Note that in the case of failure some | |
801 | * certs may have been added to \c stack. | |
802 | */ | |
803 | ||
661b361b | 804 | int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, |
0f113f3e MC |
805 | const char *file) |
806 | { | |
807 | BIO *in; | |
808 | X509 *x = NULL; | |
809 | X509_NAME *xn = NULL; | |
810 | int ret = 1; | |
811 | int (*oldcmp) (const X509_NAME *const *a, const X509_NAME *const *b); | |
812 | ||
813 | oldcmp = sk_X509_NAME_set_cmp_func(stack, xname_cmp); | |
814 | ||
815 | in = BIO_new(BIO_s_file_internal()); | |
816 | ||
817 | if (in == NULL) { | |
818 | SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK, | |
819 | ERR_R_MALLOC_FAILURE); | |
820 | goto err; | |
821 | } | |
822 | ||
823 | if (!BIO_read_filename(in, file)) | |
824 | goto err; | |
825 | ||
826 | for (;;) { | |
827 | if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) | |
828 | break; | |
829 | if ((xn = X509_get_subject_name(x)) == NULL) | |
830 | goto err; | |
831 | xn = X509_NAME_dup(xn); | |
832 | if (xn == NULL) | |
833 | goto err; | |
834 | if (sk_X509_NAME_find(stack, xn) >= 0) | |
835 | X509_NAME_free(xn); | |
836 | else | |
837 | sk_X509_NAME_push(stack, xn); | |
838 | } | |
839 | ||
840 | ERR_clear_error(); | |
66696478 | 841 | goto done; |
0f113f3e | 842 | |
0f113f3e MC |
843 | err: |
844 | ret = 0; | |
66696478 | 845 | done: |
ca3a82c3 | 846 | BIO_free(in); |
25aaa98a | 847 | X509_free(x); |
0f113f3e | 848 | (void)sk_X509_NAME_set_cmp_func(stack, oldcmp); |
0f113f3e MC |
849 | return ret; |
850 | } | |
851 | ||
852 | /** | |
eb90a483 BL |
853 | * Add a directory of certs to a stack. |
854 | * \param stack the stack to append to. | |
855 | * \param dir the directory to append from. All files in this directory will be | |
856 | * examined as potential certs. Any that are acceptable to | |
72e442a3 | 857 | * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will be |
eb90a483 BL |
858 | * included. |
859 | * \return 1 for success, 0 for failure. Note that in the case of failure some | |
860 | * certs may have been added to \c stack. | |
861 | */ | |
862 | ||
661b361b | 863 | int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, |
0f113f3e MC |
864 | const char *dir) |
865 | { | |
866 | OPENSSL_DIR_CTX *d = NULL; | |
867 | const char *filename; | |
868 | int ret = 0; | |
eb90a483 | 869 | |
0f113f3e | 870 | CRYPTO_w_lock(CRYPTO_LOCK_READDIR); |
4083a229 | 871 | |
0f113f3e | 872 | /* Note that a side effect is that the CAs will be sorted by name */ |
4083a229 | 873 | |
0f113f3e MC |
874 | while ((filename = OPENSSL_DIR_read(&d, dir))) { |
875 | char buf[1024]; | |
876 | int r; | |
4083a229 | 877 | |
0f113f3e MC |
878 | if (strlen(dir) + strlen(filename) + 2 > sizeof buf) { |
879 | SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, | |
880 | SSL_R_PATH_TOO_LONG); | |
881 | goto err; | |
882 | } | |
4083a229 | 883 | #ifdef OPENSSL_SYS_VMS |
0f113f3e | 884 | r = BIO_snprintf(buf, sizeof buf, "%s%s", dir, filename); |
4083a229 | 885 | #else |
0f113f3e | 886 | r = BIO_snprintf(buf, sizeof buf, "%s/%s", dir, filename); |
4083a229 | 887 | #endif |
0f113f3e MC |
888 | if (r <= 0 || r >= (int)sizeof(buf)) |
889 | goto err; | |
890 | if (!SSL_add_file_cert_subjects_to_stack(stack, buf)) | |
891 | goto err; | |
892 | } | |
893 | ||
894 | if (errno) { | |
895 | SYSerr(SYS_F_OPENDIR, get_last_sys_error()); | |
896 | ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir, "')"); | |
897 | SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB); | |
898 | goto err; | |
899 | } | |
900 | ||
901 | ret = 1; | |
902 | ||
903 | err: | |
904 | if (d) | |
905 | OPENSSL_DIR_end(&d); | |
906 | CRYPTO_w_unlock(CRYPTO_LOCK_READDIR); | |
907 | return ret; | |
908 | } | |
285046ec | 909 | |
4379d0e4 DSH |
910 | /* Add a certificate to a BUF_MEM structure */ |
911 | ||
912 | static int ssl_add_cert_to_buf(BUF_MEM *buf, unsigned long *l, X509 *x) | |
0f113f3e MC |
913 | { |
914 | int n; | |
915 | unsigned char *p; | |
916 | ||
917 | n = i2d_X509(x, NULL); | |
918 | if (!BUF_MEM_grow_clean(buf, (int)(n + (*l) + 3))) { | |
919 | SSLerr(SSL_F_SSL_ADD_CERT_TO_BUF, ERR_R_BUF_LIB); | |
920 | return 0; | |
921 | } | |
922 | p = (unsigned char *)&(buf->data[*l]); | |
923 | l2n3(n, p); | |
924 | i2d_X509(x, &p); | |
925 | *l += n + 3; | |
926 | ||
927 | return 1; | |
928 | } | |
4379d0e4 DSH |
929 | |
930 | /* Add certificate chain to internal SSL BUF_MEM strcuture */ | |
c526ed41 | 931 | int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l) |
0f113f3e MC |
932 | { |
933 | BUF_MEM *buf = s->init_buf; | |
934 | int i; | |
935 | ||
936 | X509 *x; | |
937 | STACK_OF(X509) *extra_certs; | |
938 | X509_STORE *chain_store; | |
939 | ||
940 | /* TLSv1 sends a chain with nothing in it, instead of an alert */ | |
941 | if (!BUF_MEM_grow_clean(buf, 10)) { | |
942 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, ERR_R_BUF_LIB); | |
943 | return 0; | |
944 | } | |
945 | ||
946 | if (!cpk || !cpk->x509) | |
947 | return 1; | |
948 | ||
949 | x = cpk->x509; | |
950 | ||
951 | /* | |
952 | * If we have a certificate specific chain use it, else use parent ctx. | |
953 | */ | |
954 | if (cpk->chain) | |
955 | extra_certs = cpk->chain; | |
956 | else | |
957 | extra_certs = s->ctx->extra_certs; | |
958 | ||
959 | if ((s->mode & SSL_MODE_NO_AUTO_CHAIN) || extra_certs) | |
960 | chain_store = NULL; | |
961 | else if (s->cert->chain_store) | |
962 | chain_store = s->cert->chain_store; | |
963 | else | |
964 | chain_store = s->ctx->cert_store; | |
965 | ||
966 | if (chain_store) { | |
967 | X509_STORE_CTX xs_ctx; | |
968 | ||
969 | if (!X509_STORE_CTX_init(&xs_ctx, chain_store, x, NULL)) { | |
970 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, ERR_R_X509_LIB); | |
971 | return (0); | |
972 | } | |
973 | X509_verify_cert(&xs_ctx); | |
974 | /* Don't leave errors in the queue */ | |
975 | ERR_clear_error(); | |
976 | i = ssl_security_cert_chain(s, xs_ctx.chain, NULL, 0); | |
977 | if (i != 1) { | |
978 | X509_STORE_CTX_cleanup(&xs_ctx); | |
979 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, i); | |
980 | return 0; | |
981 | } | |
982 | for (i = 0; i < sk_X509_num(xs_ctx.chain); i++) { | |
983 | x = sk_X509_value(xs_ctx.chain, i); | |
984 | ||
985 | if (!ssl_add_cert_to_buf(buf, l, x)) { | |
986 | X509_STORE_CTX_cleanup(&xs_ctx); | |
987 | return 0; | |
988 | } | |
989 | } | |
990 | X509_STORE_CTX_cleanup(&xs_ctx); | |
991 | } else { | |
992 | i = ssl_security_cert_chain(s, extra_certs, x, 0); | |
993 | if (i != 1) { | |
994 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, i); | |
995 | return 0; | |
996 | } | |
997 | if (!ssl_add_cert_to_buf(buf, l, x)) | |
998 | return 0; | |
999 | for (i = 0; i < sk_X509_num(extra_certs); i++) { | |
1000 | x = sk_X509_value(extra_certs, i); | |
1001 | if (!ssl_add_cert_to_buf(buf, l, x)) | |
1002 | return 0; | |
1003 | } | |
1004 | } | |
1005 | return 1; | |
1006 | } | |
4379d0e4 | 1007 | |
74ecfab4 | 1008 | /* Build a certificate chain for current certificate */ |
b362ccab | 1009 | int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags) |
0f113f3e MC |
1010 | { |
1011 | CERT *c = s ? s->cert : ctx->cert; | |
1012 | CERT_PKEY *cpk = c->key; | |
1013 | X509_STORE *chain_store = NULL; | |
1014 | X509_STORE_CTX xs_ctx; | |
1015 | STACK_OF(X509) *chain = NULL, *untrusted = NULL; | |
1016 | X509 *x; | |
1017 | int i, rv = 0; | |
1018 | unsigned long error; | |
1019 | ||
1020 | if (!cpk->x509) { | |
1021 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, SSL_R_NO_CERTIFICATE_SET); | |
1022 | goto err; | |
1023 | } | |
1024 | /* Rearranging and check the chain: add everything to a store */ | |
1025 | if (flags & SSL_BUILD_CHAIN_FLAG_CHECK) { | |
1026 | chain_store = X509_STORE_new(); | |
1027 | if (!chain_store) | |
1028 | goto err; | |
1029 | for (i = 0; i < sk_X509_num(cpk->chain); i++) { | |
1030 | x = sk_X509_value(cpk->chain, i); | |
1031 | if (!X509_STORE_add_cert(chain_store, x)) { | |
1032 | error = ERR_peek_last_error(); | |
1033 | if (ERR_GET_LIB(error) != ERR_LIB_X509 || | |
1034 | ERR_GET_REASON(error) != | |
1035 | X509_R_CERT_ALREADY_IN_HASH_TABLE) | |
1036 | goto err; | |
1037 | ERR_clear_error(); | |
1038 | } | |
1039 | } | |
1040 | /* Add EE cert too: it might be self signed */ | |
1041 | if (!X509_STORE_add_cert(chain_store, cpk->x509)) { | |
1042 | error = ERR_peek_last_error(); | |
1043 | if (ERR_GET_LIB(error) != ERR_LIB_X509 || | |
1044 | ERR_GET_REASON(error) != X509_R_CERT_ALREADY_IN_HASH_TABLE) | |
1045 | goto err; | |
1046 | ERR_clear_error(); | |
1047 | } | |
1048 | } else { | |
1049 | if (c->chain_store) | |
1050 | chain_store = c->chain_store; | |
1051 | else if (s) | |
1052 | chain_store = s->ctx->cert_store; | |
1053 | else | |
1054 | chain_store = ctx->cert_store; | |
1055 | ||
1056 | if (flags & SSL_BUILD_CHAIN_FLAG_UNTRUSTED) | |
1057 | untrusted = cpk->chain; | |
1058 | } | |
1059 | ||
1060 | if (!X509_STORE_CTX_init(&xs_ctx, chain_store, cpk->x509, untrusted)) { | |
1061 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, ERR_R_X509_LIB); | |
1062 | goto err; | |
1063 | } | |
1064 | /* Set suite B flags if needed */ | |
1065 | X509_STORE_CTX_set_flags(&xs_ctx, | |
1066 | c->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS); | |
1067 | ||
1068 | i = X509_verify_cert(&xs_ctx); | |
1069 | if (i <= 0 && flags & SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR) { | |
1070 | if (flags & SSL_BUILD_CHAIN_FLAG_CLEAR_ERROR) | |
1071 | ERR_clear_error(); | |
1072 | i = 1; | |
1073 | rv = 2; | |
1074 | } | |
1075 | if (i > 0) | |
1076 | chain = X509_STORE_CTX_get1_chain(&xs_ctx); | |
1077 | if (i <= 0) { | |
1078 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, SSL_R_CERTIFICATE_VERIFY_FAILED); | |
1079 | i = X509_STORE_CTX_get_error(&xs_ctx); | |
1080 | ERR_add_error_data(2, "Verify error:", | |
1081 | X509_verify_cert_error_string(i)); | |
1082 | ||
1083 | X509_STORE_CTX_cleanup(&xs_ctx); | |
1084 | goto err; | |
1085 | } | |
1086 | X509_STORE_CTX_cleanup(&xs_ctx); | |
1087 | /* Remove EE certificate from chain */ | |
1088 | x = sk_X509_shift(chain); | |
1089 | X509_free(x); | |
1090 | if (flags & SSL_BUILD_CHAIN_FLAG_NO_ROOT) { | |
1091 | if (sk_X509_num(chain) > 0) { | |
1092 | /* See if last cert is self signed */ | |
1093 | x = sk_X509_value(chain, sk_X509_num(chain) - 1); | |
1094 | X509_check_purpose(x, -1, 0); | |
1095 | if (x->ex_flags & EXFLAG_SS) { | |
1096 | x = sk_X509_pop(chain); | |
1097 | X509_free(x); | |
1098 | } | |
1099 | } | |
1100 | } | |
1101 | /* | |
1102 | * Check security level of all CA certificates: EE will have been checked | |
1103 | * already. | |
1104 | */ | |
1105 | for (i = 0; i < sk_X509_num(chain); i++) { | |
1106 | x = sk_X509_value(chain, i); | |
1107 | rv = ssl_security_cert(s, ctx, x, 0, 0); | |
1108 | if (rv != 1) { | |
1109 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, rv); | |
1110 | sk_X509_pop_free(chain, X509_free); | |
1111 | rv = 0; | |
1112 | goto err; | |
1113 | } | |
1114 | } | |
222561fe | 1115 | sk_X509_pop_free(cpk->chain, X509_free); |
0f113f3e MC |
1116 | cpk->chain = chain; |
1117 | if (rv == 0) | |
1118 | rv = 1; | |
1119 | err: | |
1120 | if (flags & SSL_BUILD_CHAIN_FLAG_CHECK) | |
1121 | X509_STORE_free(chain_store); | |
1122 | ||
1123 | return rv; | |
1124 | } | |
74ecfab4 DSH |
1125 | |
1126 | int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref) | |
0f113f3e MC |
1127 | { |
1128 | X509_STORE **pstore; | |
1129 | if (chain) | |
1130 | pstore = &c->chain_store; | |
1131 | else | |
1132 | pstore = &c->verify_store; | |
222561fe | 1133 | X509_STORE_free(*pstore); |
0f113f3e MC |
1134 | *pstore = store; |
1135 | if (ref && store) | |
1136 | CRYPTO_add(&store->references, 1, CRYPTO_LOCK_X509_STORE); | |
1137 | return 1; | |
1138 | } | |
1139 | ||
1140 | static int ssl_security_default_callback(SSL *s, SSL_CTX *ctx, int op, | |
1141 | int bits, int nid, void *other, | |
1142 | void *ex) | |
1143 | { | |
1144 | int level, minbits; | |
1145 | static const int minbits_table[5] = { 80, 112, 128, 192, 256 }; | |
1146 | if (ctx) | |
1147 | level = SSL_CTX_get_security_level(ctx); | |
1148 | else | |
1149 | level = SSL_get_security_level(s); | |
1150 | /* Level 0: anything goes */ | |
1151 | if (level <= 0) | |
1152 | return 1; | |
1153 | if (level > 5) | |
1154 | level = 5; | |
1155 | minbits = minbits_table[level - 1]; | |
1156 | switch (op) { | |
1157 | case SSL_SECOP_CIPHER_SUPPORTED: | |
1158 | case SSL_SECOP_CIPHER_SHARED: | |
1159 | case SSL_SECOP_CIPHER_CHECK: | |
1160 | { | |
1161 | const SSL_CIPHER *c = other; | |
1162 | /* No ciphers below security level */ | |
1163 | if (bits < minbits) | |
1164 | return 0; | |
1165 | /* No unauthenticated ciphersuites */ | |
1166 | if (c->algorithm_auth & SSL_aNULL) | |
1167 | return 0; | |
1168 | /* No MD5 mac ciphersuites */ | |
1169 | if (c->algorithm_mac & SSL_MD5) | |
1170 | return 0; | |
1171 | /* SHA1 HMAC is 160 bits of security */ | |
1172 | if (minbits > 160 && c->algorithm_mac & SSL_SHA1) | |
1173 | return 0; | |
1174 | /* Level 2: no RC4 */ | |
1175 | if (level >= 2 && c->algorithm_enc == SSL_RC4) | |
1176 | return 0; | |
1177 | /* Level 3: forward secure ciphersuites only */ | |
1178 | if (level >= 3 && !(c->algorithm_mkey & (SSL_kEDH | SSL_kEECDH))) | |
1179 | return 0; | |
1180 | break; | |
1181 | } | |
1182 | case SSL_SECOP_VERSION: | |
1183 | /* SSLv3 not allowed on level 2 */ | |
1184 | if (nid <= SSL3_VERSION && level >= 2) | |
1185 | return 0; | |
1186 | /* TLS v1.1 and above only for level 3 */ | |
1187 | if (nid <= TLS1_VERSION && level >= 3) | |
1188 | return 0; | |
1189 | /* TLS v1.2 only for level 4 and above */ | |
1190 | if (nid <= TLS1_1_VERSION && level >= 4) | |
1191 | return 0; | |
1192 | break; | |
1193 | ||
1194 | case SSL_SECOP_COMPRESSION: | |
1195 | if (level >= 2) | |
1196 | return 0; | |
1197 | break; | |
1198 | case SSL_SECOP_TICKET: | |
1199 | if (level >= 3) | |
1200 | return 0; | |
1201 | break; | |
1202 | default: | |
1203 | if (bits < minbits) | |
1204 | return 0; | |
1205 | } | |
1206 | return 1; | |
1207 | } | |
b362ccab DSH |
1208 | |
1209 | int ssl_security(SSL *s, int op, int bits, int nid, void *other) | |
0f113f3e MC |
1210 | { |
1211 | return s->cert->sec_cb(s, NULL, op, bits, nid, other, s->cert->sec_ex); | |
1212 | } | |
b362ccab DSH |
1213 | |
1214 | int ssl_ctx_security(SSL_CTX *ctx, int op, int bits, int nid, void *other) | |
0f113f3e MC |
1215 | { |
1216 | return ctx->cert->sec_cb(NULL, ctx, op, bits, nid, other, | |
1217 | ctx->cert->sec_ex); | |
1218 | } |