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58964a49 | 1 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
2 | * All rights reserved. |
3 | * | |
4 | * This package is an SSL implementation written | |
5 | * by Eric Young (eay@cryptsoft.com). | |
6 | * The implementation was written so as to conform with Netscapes SSL. | |
0f113f3e | 7 | * |
d02b48c6 RE |
8 | * This library is free for commercial and non-commercial use as long as |
9 | * the following conditions are aheared to. The following conditions | |
10 | * apply to all code found in this distribution, be it the RC4, RSA, | |
11 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
12 | * included with this distribution is covered by the same copyright terms | |
13 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
0f113f3e | 14 | * |
d02b48c6 RE |
15 | * Copyright remains Eric Young's, and as such any Copyright notices in |
16 | * the code are not to be removed. | |
17 | * If this package is used in a product, Eric Young should be given attribution | |
18 | * as the author of the parts of the library used. | |
19 | * This can be in the form of a textual message at program startup or | |
20 | * in documentation (online or textual) provided with the package. | |
0f113f3e | 21 | * |
d02b48c6 RE |
22 | * Redistribution and use in source and binary forms, with or without |
23 | * modification, are permitted provided that the following conditions | |
24 | * are met: | |
25 | * 1. Redistributions of source code must retain the copyright | |
26 | * notice, this list of conditions and the following disclaimer. | |
27 | * 2. Redistributions in binary form must reproduce the above copyright | |
28 | * notice, this list of conditions and the following disclaimer in the | |
29 | * documentation and/or other materials provided with the distribution. | |
30 | * 3. All advertising materials mentioning features or use of this software | |
31 | * must display the following acknowledgement: | |
32 | * "This product includes cryptographic software written by | |
33 | * Eric Young (eay@cryptsoft.com)" | |
34 | * The word 'cryptographic' can be left out if the rouines from the library | |
35 | * being used are not cryptographic related :-). | |
0f113f3e | 36 | * 4. If you include any Windows specific code (or a derivative thereof) from |
d02b48c6 RE |
37 | * the apps directory (application code) you must include an acknowledgement: |
38 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
0f113f3e | 39 | * |
d02b48c6 RE |
40 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
41 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
43 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
44 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
45 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
46 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
48 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
49 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
50 | * SUCH DAMAGE. | |
0f113f3e | 51 | * |
d02b48c6 RE |
52 | * The licence and distribution terms for any publically available version or |
53 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
54 | * copied and put under another distribution licence | |
55 | * [including the GNU Public Licence.] | |
56 | */ | |
ca8e5b9b | 57 | /* ==================================================================== |
52b8dad8 | 58 | * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. |
ca8e5b9b BM |
59 | * |
60 | * Redistribution and use in source and binary forms, with or without | |
61 | * modification, are permitted provided that the following conditions | |
62 | * are met: | |
63 | * | |
64 | * 1. Redistributions of source code must retain the above copyright | |
0f113f3e | 65 | * notice, this list of conditions and the following disclaimer. |
ca8e5b9b BM |
66 | * |
67 | * 2. Redistributions in binary form must reproduce the above copyright | |
68 | * notice, this list of conditions and the following disclaimer in | |
69 | * the documentation and/or other materials provided with the | |
70 | * distribution. | |
71 | * | |
72 | * 3. All advertising materials mentioning features or use of this | |
73 | * software must display the following acknowledgment: | |
74 | * "This product includes software developed by the OpenSSL Project | |
675f605d | 75 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" |
ca8e5b9b BM |
76 | * |
77 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
78 | * endorse or promote products derived from this software without | |
79 | * prior written permission. For written permission, please contact | |
675f605d | 80 | * openssl-core@openssl.org. |
ca8e5b9b BM |
81 | * |
82 | * 5. Products derived from this software may not be called "OpenSSL" | |
83 | * nor may "OpenSSL" appear in their names without prior written | |
84 | * permission of the OpenSSL Project. | |
85 | * | |
86 | * 6. Redistributions of any form whatsoever must retain the following | |
87 | * acknowledgment: | |
88 | * "This product includes software developed by the OpenSSL Project | |
675f605d | 89 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" |
ca8e5b9b BM |
90 | * |
91 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
92 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
93 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
94 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
95 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
96 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
97 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
98 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
99 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
100 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
101 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
102 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
103 | * ==================================================================== | |
675f605d BM |
104 | * |
105 | * This product includes cryptographic software written by Eric Young | |
106 | * (eay@cryptsoft.com). This product includes software written by Tim | |
107 | * Hudson (tjh@cryptsoft.com). | |
108 | * | |
ca8e5b9b | 109 | */ |
ea262260 BM |
110 | /* ==================================================================== |
111 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | |
0f113f3e | 112 | * ECC cipher suite support in OpenSSL originally developed by |
ea262260 BM |
113 | * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. |
114 | */ | |
d02b48c6 RE |
115 | |
116 | #include <stdio.h> | |
17f389bb | 117 | |
41d2a336 | 118 | #include "e_os.h" |
17f389bb AP |
119 | #ifndef NO_SYS_TYPES_H |
120 | # include <sys/types.h> | |
121 | #endif | |
122 | ||
68570797 | 123 | #include "internal/o_dir.h" |
7823d792 | 124 | #include <openssl/lhash.h> |
ec577822 BM |
125 | #include <openssl/bio.h> |
126 | #include <openssl/pem.h> | |
bb7cd4e3 | 127 | #include <openssl/x509v3.h> |
3c27208f | 128 | #include <openssl/dh.h> |
d095b68d | 129 | #include <openssl/bn.h> |
16203f7b | 130 | #include "internal/threads.h" |
d02b48c6 RE |
131 | #include "ssl_locl.h" |
132 | ||
e4646a89 | 133 | static int ssl_security_default_callback(const SSL *s, const SSL_CTX *ctx, int op, |
0f113f3e MC |
134 | int bits, int nid, void *other, |
135 | void *ex); | |
b362ccab | 136 | |
16203f7b AG |
137 | static CRYPTO_ONCE ssl_x509_store_ctx_once = CRYPTO_ONCE_STATIC_INIT; |
138 | static volatile int ssl_x509_store_ctx_idx = -1; | |
0f113f3e | 139 | |
16203f7b AG |
140 | static void ssl_x509_store_ctx_init(void) |
141 | { | |
142 | ssl_x509_store_ctx_idx = X509_STORE_CTX_get_ex_new_index(0, | |
143 | "SSL for verify callback", | |
0f113f3e | 144 | NULL, NULL, NULL); |
16203f7b | 145 | } |
0f113f3e | 146 | |
16203f7b AG |
147 | int SSL_get_ex_data_X509_STORE_CTX_idx(void) |
148 | { | |
0f113f3e | 149 | |
16203f7b | 150 | CRYPTO_THREAD_run_once(&ssl_x509_store_ctx_once, ssl_x509_store_ctx_init); |
0f113f3e MC |
151 | return ssl_x509_store_ctx_idx; |
152 | } | |
dfeab068 | 153 | |
6b691a5c | 154 | CERT *ssl_cert_new(void) |
0f113f3e | 155 | { |
b51bce94 | 156 | CERT *ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e | 157 | |
0f113f3e MC |
158 | if (ret == NULL) { |
159 | SSLerr(SSL_F_SSL_CERT_NEW, ERR_R_MALLOC_FAILURE); | |
16203f7b | 160 | return NULL; |
0f113f3e | 161 | } |
0f113f3e MC |
162 | |
163 | ret->key = &(ret->pkeys[SSL_PKEY_RSA_ENC]); | |
164 | ret->references = 1; | |
0f113f3e MC |
165 | ret->sec_cb = ssl_security_default_callback; |
166 | ret->sec_level = OPENSSL_TLS_SECURITY_LEVEL; | |
167 | ret->sec_ex = NULL; | |
16203f7b AG |
168 | ret->lock = CRYPTO_THREAD_lock_new(); |
169 | if (ret->lock == NULL) { | |
170 | SSLerr(SSL_F_SSL_CERT_NEW, ERR_R_MALLOC_FAILURE); | |
171 | OPENSSL_free(ret); | |
172 | return NULL; | |
173 | } | |
174 | ||
175 | return ret; | |
0f113f3e | 176 | } |
d02b48c6 | 177 | |
ca8e5b9b | 178 | CERT *ssl_cert_dup(CERT *cert) |
0f113f3e | 179 | { |
b51bce94 | 180 | CERT *ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e MC |
181 | int i; |
182 | ||
0f113f3e MC |
183 | if (ret == NULL) { |
184 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); | |
16203f7b | 185 | return NULL; |
0f113f3e MC |
186 | } |
187 | ||
0e04674e | 188 | ret->references = 1; |
16f8d4eb | 189 | ret->key = &ret->pkeys[cert->key - cert->pkeys]; |
16203f7b | 190 | ret->lock = CRYPTO_THREAD_lock_new(); |
aeb5b955 | 191 | if (ret->lock == NULL) { |
16203f7b AG |
192 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); |
193 | OPENSSL_free(ret); | |
194 | return NULL; | |
195 | } | |
ca8e5b9b | 196 | |
bc36ee62 | 197 | #ifndef OPENSSL_NO_DH |
0f113f3e | 198 | if (cert->dh_tmp != NULL) { |
e2b420fd DSH |
199 | ret->dh_tmp = cert->dh_tmp; |
200 | EVP_PKEY_up_ref(ret->dh_tmp); | |
0f113f3e MC |
201 | } |
202 | ret->dh_tmp_cb = cert->dh_tmp_cb; | |
203 | ret->dh_tmp_auto = cert->dh_tmp_auto; | |
ca8e5b9b BM |
204 | #endif |
205 | ||
0f113f3e MC |
206 | for (i = 0; i < SSL_PKEY_NUM; i++) { |
207 | CERT_PKEY *cpk = cert->pkeys + i; | |
208 | CERT_PKEY *rpk = ret->pkeys + i; | |
209 | if (cpk->x509 != NULL) { | |
210 | rpk->x509 = cpk->x509; | |
05f0fb9f | 211 | X509_up_ref(rpk->x509); |
0f113f3e MC |
212 | } |
213 | ||
214 | if (cpk->privatekey != NULL) { | |
215 | rpk->privatekey = cpk->privatekey; | |
3aeb9348 | 216 | EVP_PKEY_up_ref(cpk->privatekey); |
0f113f3e MC |
217 | } |
218 | ||
219 | if (cpk->chain) { | |
220 | rpk->chain = X509_chain_up_ref(cpk->chain); | |
221 | if (!rpk->chain) { | |
222 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); | |
223 | goto err; | |
224 | } | |
225 | } | |
0f113f3e MC |
226 | if (cert->pkeys[i].serverinfo != NULL) { |
227 | /* Just copy everything. */ | |
228 | ret->pkeys[i].serverinfo = | |
229 | OPENSSL_malloc(cert->pkeys[i].serverinfo_length); | |
230 | if (ret->pkeys[i].serverinfo == NULL) { | |
231 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); | |
232 | goto err; | |
233 | } | |
234 | ret->pkeys[i].serverinfo_length = | |
235 | cert->pkeys[i].serverinfo_length; | |
236 | memcpy(ret->pkeys[i].serverinfo, | |
237 | cert->pkeys[i].serverinfo, | |
238 | cert->pkeys[i].serverinfo_length); | |
239 | } | |
0f113f3e MC |
240 | } |
241 | ||
76106e60 | 242 | /* Configured sigalgs copied across */ |
0f113f3e MC |
243 | if (cert->conf_sigalgs) { |
244 | ret->conf_sigalgs = OPENSSL_malloc(cert->conf_sigalgslen); | |
a71edf3b | 245 | if (ret->conf_sigalgs == NULL) |
0f113f3e MC |
246 | goto err; |
247 | memcpy(ret->conf_sigalgs, cert->conf_sigalgs, cert->conf_sigalgslen); | |
248 | ret->conf_sigalgslen = cert->conf_sigalgslen; | |
249 | } else | |
250 | ret->conf_sigalgs = NULL; | |
251 | ||
252 | if (cert->client_sigalgs) { | |
253 | ret->client_sigalgs = OPENSSL_malloc(cert->client_sigalgslen); | |
a71edf3b | 254 | if (ret->client_sigalgs == NULL) |
0f113f3e MC |
255 | goto err; |
256 | memcpy(ret->client_sigalgs, cert->client_sigalgs, | |
257 | cert->client_sigalgslen); | |
258 | ret->client_sigalgslen = cert->client_sigalgslen; | |
259 | } else | |
260 | ret->client_sigalgs = NULL; | |
261 | /* Shared sigalgs also NULL */ | |
262 | ret->shared_sigalgs = NULL; | |
263 | /* Copy any custom client certificate types */ | |
264 | if (cert->ctypes) { | |
265 | ret->ctypes = OPENSSL_malloc(cert->ctype_num); | |
a71edf3b | 266 | if (ret->ctypes == NULL) |
0f113f3e MC |
267 | goto err; |
268 | memcpy(ret->ctypes, cert->ctypes, cert->ctype_num); | |
269 | ret->ctype_num = cert->ctype_num; | |
270 | } | |
271 | ||
272 | ret->cert_flags = cert->cert_flags; | |
273 | ||
274 | ret->cert_cb = cert->cert_cb; | |
275 | ret->cert_cb_arg = cert->cert_cb_arg; | |
276 | ||
277 | if (cert->verify_store) { | |
c001ce33 | 278 | X509_STORE_up_ref(cert->verify_store); |
0f113f3e MC |
279 | ret->verify_store = cert->verify_store; |
280 | } | |
281 | ||
282 | if (cert->chain_store) { | |
c001ce33 | 283 | X509_STORE_up_ref(cert->chain_store); |
0f113f3e MC |
284 | ret->chain_store = cert->chain_store; |
285 | } | |
286 | ||
0f113f3e MC |
287 | ret->sec_cb = cert->sec_cb; |
288 | ret->sec_level = cert->sec_level; | |
289 | ret->sec_ex = cert->sec_ex; | |
b362ccab | 290 | |
0f113f3e MC |
291 | if (!custom_exts_copy(&ret->cli_ext, &cert->cli_ext)) |
292 | goto err; | |
293 | if (!custom_exts_copy(&ret->srv_ext, &cert->srv_ext)) | |
294 | goto err; | |
9076bd25 | 295 | #ifndef OPENSSL_NO_PSK |
df6da24b | 296 | if (cert->psk_identity_hint) { |
7644a9ae | 297 | ret->psk_identity_hint = OPENSSL_strdup(cert->psk_identity_hint); |
df6da24b DSH |
298 | if (ret->psk_identity_hint == NULL) |
299 | goto err; | |
300 | } | |
9076bd25 | 301 | #endif |
16203f7b | 302 | return ret; |
0f113f3e MC |
303 | |
304 | err: | |
305 | ssl_cert_free(ret); | |
9ade64de | 306 | |
0f113f3e MC |
307 | return NULL; |
308 | } | |
ca8e5b9b | 309 | |
a5ee80b9 DSH |
310 | /* Free up and clear all certificates and chains */ |
311 | ||
312 | void ssl_cert_clear_certs(CERT *c) | |
0f113f3e MC |
313 | { |
314 | int i; | |
315 | if (c == NULL) | |
316 | return; | |
317 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
318 | CERT_PKEY *cpk = c->pkeys + i; | |
222561fe RS |
319 | X509_free(cpk->x509); |
320 | cpk->x509 = NULL; | |
c5ba2d99 RS |
321 | EVP_PKEY_free(cpk->privatekey); |
322 | cpk->privatekey = NULL; | |
222561fe RS |
323 | sk_X509_pop_free(cpk->chain, X509_free); |
324 | cpk->chain = NULL; | |
25aaa98a RS |
325 | OPENSSL_free(cpk->serverinfo); |
326 | cpk->serverinfo = NULL; | |
327 | cpk->serverinfo_length = 0; | |
0f113f3e MC |
328 | } |
329 | } | |
ca8e5b9b | 330 | |
eb90a483 | 331 | void ssl_cert_free(CERT *c) |
0f113f3e MC |
332 | { |
333 | int i; | |
d02b48c6 | 334 | |
0f113f3e MC |
335 | if (c == NULL) |
336 | return; | |
e03ddfae | 337 | |
16203f7b | 338 | CRYPTO_atomic_add(&c->references, -1, &i, c->lock); |
f3f1cf84 | 339 | REF_PRINT_COUNT("CERT", c); |
0f113f3e MC |
340 | if (i > 0) |
341 | return; | |
f3f1cf84 | 342 | REF_ASSERT_ISNT(i < 0); |
d02b48c6 | 343 | |
bc36ee62 | 344 | #ifndef OPENSSL_NO_DH |
e2b420fd | 345 | EVP_PKEY_free(c->dh_tmp); |
d02b48c6 RE |
346 | #endif |
347 | ||
0f113f3e | 348 | ssl_cert_clear_certs(c); |
25aaa98a RS |
349 | OPENSSL_free(c->conf_sigalgs); |
350 | OPENSSL_free(c->client_sigalgs); | |
351 | OPENSSL_free(c->shared_sigalgs); | |
352 | OPENSSL_free(c->ctypes); | |
222561fe RS |
353 | X509_STORE_free(c->verify_store); |
354 | X509_STORE_free(c->chain_store); | |
0f113f3e MC |
355 | custom_exts_free(&c->cli_ext); |
356 | custom_exts_free(&c->srv_ext); | |
df6da24b DSH |
357 | #ifndef OPENSSL_NO_PSK |
358 | OPENSSL_free(c->psk_identity_hint); | |
359 | #endif | |
16203f7b | 360 | CRYPTO_THREAD_lock_free(c->lock); |
0f113f3e MC |
361 | OPENSSL_free(c); |
362 | } | |
d02b48c6 | 363 | |
b362ccab | 364 | int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain) |
0f113f3e MC |
365 | { |
366 | int i, r; | |
367 | CERT_PKEY *cpk = s ? s->cert->key : ctx->cert->key; | |
368 | if (!cpk) | |
369 | return 0; | |
222561fe | 370 | sk_X509_pop_free(cpk->chain, X509_free); |
0f113f3e MC |
371 | for (i = 0; i < sk_X509_num(chain); i++) { |
372 | r = ssl_security_cert(s, ctx, sk_X509_value(chain, i), 0, 0); | |
373 | if (r != 1) { | |
374 | SSLerr(SSL_F_SSL_CERT_SET0_CHAIN, r); | |
375 | return 0; | |
376 | } | |
377 | } | |
378 | cpk->chain = chain; | |
379 | return 1; | |
380 | } | |
f71c6e52 | 381 | |
b362ccab | 382 | int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain) |
0f113f3e MC |
383 | { |
384 | STACK_OF(X509) *dchain; | |
385 | if (!chain) | |
386 | return ssl_cert_set0_chain(s, ctx, NULL); | |
387 | dchain = X509_chain_up_ref(chain); | |
388 | if (!dchain) | |
389 | return 0; | |
390 | if (!ssl_cert_set0_chain(s, ctx, dchain)) { | |
391 | sk_X509_pop_free(dchain, X509_free); | |
392 | return 0; | |
393 | } | |
394 | return 1; | |
395 | } | |
f71c6e52 | 396 | |
b362ccab | 397 | int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x) |
0f113f3e MC |
398 | { |
399 | int r; | |
400 | CERT_PKEY *cpk = s ? s->cert->key : ctx->cert->key; | |
401 | if (!cpk) | |
402 | return 0; | |
403 | r = ssl_security_cert(s, ctx, x, 0, 0); | |
404 | if (r != 1) { | |
405 | SSLerr(SSL_F_SSL_CERT_ADD0_CHAIN_CERT, r); | |
406 | return 0; | |
407 | } | |
408 | if (!cpk->chain) | |
409 | cpk->chain = sk_X509_new_null(); | |
410 | if (!cpk->chain || !sk_X509_push(cpk->chain, x)) | |
411 | return 0; | |
412 | return 1; | |
413 | } | |
f71c6e52 | 414 | |
b362ccab | 415 | int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x) |
0f113f3e MC |
416 | { |
417 | if (!ssl_cert_add0_chain_cert(s, ctx, x)) | |
418 | return 0; | |
05f0fb9f | 419 | X509_up_ref(x); |
0f113f3e MC |
420 | return 1; |
421 | } | |
7b6b246f RS |
422 | |
423 | int ssl_cert_select_current(CERT *c, X509 *x) | |
0f113f3e MC |
424 | { |
425 | int i; | |
426 | if (x == NULL) | |
427 | return 0; | |
428 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
429 | CERT_PKEY *cpk = c->pkeys + i; | |
430 | if (cpk->x509 == x && cpk->privatekey) { | |
431 | c->key = cpk; | |
432 | return 1; | |
433 | } | |
434 | } | |
435 | ||
436 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
437 | CERT_PKEY *cpk = c->pkeys + i; | |
438 | if (cpk->privatekey && cpk->x509 && !X509_cmp(cpk->x509, x)) { | |
439 | c->key = cpk; | |
440 | return 1; | |
441 | } | |
442 | } | |
443 | return 0; | |
444 | } | |
0f78819c DSH |
445 | |
446 | int ssl_cert_set_current(CERT *c, long op) | |
0f113f3e MC |
447 | { |
448 | int i, idx; | |
449 | if (!c) | |
450 | return 0; | |
451 | if (op == SSL_CERT_SET_FIRST) | |
452 | idx = 0; | |
453 | else if (op == SSL_CERT_SET_NEXT) { | |
454 | idx = (int)(c->key - c->pkeys + 1); | |
455 | if (idx >= SSL_PKEY_NUM) | |
456 | return 0; | |
457 | } else | |
458 | return 0; | |
459 | for (i = idx; i < SSL_PKEY_NUM; i++) { | |
460 | CERT_PKEY *cpk = c->pkeys + i; | |
461 | if (cpk->x509 && cpk->privatekey) { | |
462 | c->key = cpk; | |
463 | return 1; | |
464 | } | |
465 | } | |
466 | return 0; | |
467 | } | |
468 | ||
469 | void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg), void *arg) | |
470 | { | |
471 | c->cert_cb = cb; | |
472 | c->cert_cb_arg = arg; | |
473 | } | |
18d71588 | 474 | |
0f113f3e MC |
475 | int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk) |
476 | { | |
477 | X509 *x; | |
f0e0fd51 | 478 | int i = 0; |
0f113f3e | 479 | X509_STORE *verify_store; |
f0e0fd51 | 480 | X509_STORE_CTX *ctx = NULL; |
919ba009 | 481 | X509_VERIFY_PARAM *param; |
0f113f3e | 482 | |
f0e0fd51 RS |
483 | if ((sk == NULL) || (sk_X509_num(sk) == 0)) |
484 | return 0; | |
485 | ||
0f113f3e MC |
486 | if (s->cert->verify_store) |
487 | verify_store = s->cert->verify_store; | |
488 | else | |
489 | verify_store = s->ctx->cert_store; | |
490 | ||
f0e0fd51 RS |
491 | ctx = X509_STORE_CTX_new(); |
492 | if (ctx == NULL) { | |
493 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, ERR_R_MALLOC_FAILURE); | |
494 | return 0; | |
495 | } | |
0f113f3e MC |
496 | |
497 | x = sk_X509_value(sk, 0); | |
f0e0fd51 | 498 | if (!X509_STORE_CTX_init(ctx, verify_store, x, sk)) { |
0f113f3e | 499 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, ERR_R_X509_LIB); |
f0e0fd51 | 500 | goto end; |
0f113f3e | 501 | } |
f0e0fd51 | 502 | param = X509_STORE_CTX_get0_param(ctx); |
fbb82a60 VD |
503 | /* |
504 | * XXX: Separate @AUTHSECLEVEL and @TLSSECLEVEL would be useful at some | |
505 | * point, for now a single @SECLEVEL sets the same policy for TLS crypto | |
506 | * and PKI authentication. | |
507 | */ | |
508 | X509_VERIFY_PARAM_set_auth_level(param, SSL_get_security_level(s)); | |
919ba009 | 509 | |
0f113f3e | 510 | /* Set suite B flags if needed */ |
f0e0fd51 RS |
511 | X509_STORE_CTX_set_flags(ctx, tls1_suiteb(s)); |
512 | X509_STORE_CTX_set_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx(), s); | |
0f113f3e | 513 | |
919ba009 VD |
514 | /* Verify via DANE if enabled */ |
515 | if (DANETLS_ENABLED(&s->dane)) | |
f0e0fd51 | 516 | X509_STORE_CTX_set0_dane(ctx, &s->dane); |
919ba009 | 517 | |
0f113f3e MC |
518 | /* |
519 | * We need to inherit the verify parameters. These can be determined by | |
520 | * the context: if its a server it will verify SSL client certificates or | |
521 | * vice versa. | |
522 | */ | |
523 | ||
f0e0fd51 | 524 | X509_STORE_CTX_set_default(ctx, s->server ? "ssl_client" : "ssl_server"); |
0f113f3e | 525 | /* |
919ba009 | 526 | * Anything non-default in "s->param" should overwrite anything in the ctx. |
0f113f3e | 527 | */ |
919ba009 | 528 | X509_VERIFY_PARAM_set1(param, s->param); |
0f113f3e MC |
529 | |
530 | if (s->verify_callback) | |
f0e0fd51 | 531 | X509_STORE_CTX_set_verify_cb(ctx, s->verify_callback); |
0f113f3e MC |
532 | |
533 | if (s->ctx->app_verify_callback != NULL) | |
f0e0fd51 | 534 | i = s->ctx->app_verify_callback(ctx, s->ctx->app_verify_arg); |
fbb82a60 | 535 | else |
f0e0fd51 | 536 | i = X509_verify_cert(ctx); |
d02b48c6 | 537 | |
f0e0fd51 | 538 | s->verify_result = X509_STORE_CTX_get_error(ctx); |
696178ed DSH |
539 | sk_X509_pop_free(s->verified_chain, X509_free); |
540 | s->verified_chain = NULL; | |
f0e0fd51 RS |
541 | if (X509_STORE_CTX_get0_chain(ctx) != NULL) { |
542 | s->verified_chain = X509_STORE_CTX_get1_chain(ctx); | |
696178ed DSH |
543 | if (s->verified_chain == NULL) { |
544 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, ERR_R_MALLOC_FAILURE); | |
545 | i = 0; | |
546 | } | |
547 | } | |
919ba009 VD |
548 | |
549 | /* Move peername from the store context params to the SSL handle's */ | |
550 | X509_VERIFY_PARAM_move_peername(s->param, param); | |
551 | ||
f0e0fd51 RS |
552 | end: |
553 | X509_STORE_CTX_free(ctx); | |
554 | return i; | |
0f113f3e | 555 | } |
d02b48c6 | 556 | |
0f113f3e MC |
557 | static void set_client_CA_list(STACK_OF(X509_NAME) **ca_list, |
558 | STACK_OF(X509_NAME) *name_list) | |
559 | { | |
222561fe | 560 | sk_X509_NAME_pop_free(*ca_list, X509_NAME_free); |
0f113f3e MC |
561 | *ca_list = name_list; |
562 | } | |
d02b48c6 | 563 | |
838d25a1 | 564 | STACK_OF(X509_NAME) *SSL_dup_CA_list(STACK_OF(X509_NAME) *sk) |
0f113f3e MC |
565 | { |
566 | int i; | |
567 | STACK_OF(X509_NAME) *ret; | |
568 | X509_NAME *name; | |
569 | ||
570 | ret = sk_X509_NAME_new_null(); | |
571 | for (i = 0; i < sk_X509_NAME_num(sk); i++) { | |
572 | name = X509_NAME_dup(sk_X509_NAME_value(sk, i)); | |
573 | if ((name == NULL) || !sk_X509_NAME_push(ret, name)) { | |
574 | sk_X509_NAME_pop_free(ret, X509_NAME_free); | |
575 | return (NULL); | |
576 | } | |
577 | } | |
578 | return (ret); | |
579 | } | |
580 | ||
581 | void SSL_set_client_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list) | |
582 | { | |
583 | set_client_CA_list(&(s->client_CA), name_list); | |
584 | } | |
585 | ||
586 | void SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list) | |
587 | { | |
588 | set_client_CA_list(&(ctx->client_CA), name_list); | |
589 | } | |
d02b48c6 | 590 | |
0821bcd4 | 591 | STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *ctx) |
0f113f3e MC |
592 | { |
593 | return (ctx->client_CA); | |
594 | } | |
d02b48c6 | 595 | |
0821bcd4 | 596 | STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s) |
0f113f3e | 597 | { |
23a635c0 | 598 | if (!s->server) { /* we are in the client */ |
0f113f3e MC |
599 | if (((s->version >> 8) == SSL3_VERSION_MAJOR) && (s->s3 != NULL)) |
600 | return (s->s3->tmp.ca_names); | |
601 | else | |
602 | return (NULL); | |
603 | } else { | |
604 | if (s->client_CA != NULL) | |
605 | return (s->client_CA); | |
606 | else | |
607 | return (s->ctx->client_CA); | |
608 | } | |
609 | } | |
610 | ||
611 | static int add_client_CA(STACK_OF(X509_NAME) **sk, X509 *x) | |
612 | { | |
613 | X509_NAME *name; | |
614 | ||
615 | if (x == NULL) | |
616 | return (0); | |
617 | if ((*sk == NULL) && ((*sk = sk_X509_NAME_new_null()) == NULL)) | |
618 | return (0); | |
619 | ||
620 | if ((name = X509_NAME_dup(X509_get_subject_name(x))) == NULL) | |
621 | return (0); | |
622 | ||
623 | if (!sk_X509_NAME_push(*sk, name)) { | |
624 | X509_NAME_free(name); | |
625 | return (0); | |
626 | } | |
627 | return (1); | |
628 | } | |
629 | ||
630 | int SSL_add_client_CA(SSL *ssl, X509 *x) | |
631 | { | |
632 | return (add_client_CA(&(ssl->client_CA), x)); | |
633 | } | |
634 | ||
635 | int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *x) | |
636 | { | |
637 | return (add_client_CA(&(ctx->client_CA), x)); | |
638 | } | |
639 | ||
7823d792 | 640 | static int xname_sk_cmp(const X509_NAME *const *a, const X509_NAME *const *b) |
0f113f3e MC |
641 | { |
642 | return (X509_NAME_cmp(*a, *b)); | |
643 | } | |
d02b48c6 | 644 | |
7823d792 TF |
645 | static int xname_cmp(const X509_NAME *a, const X509_NAME *b) |
646 | { | |
647 | return X509_NAME_cmp(a, b); | |
648 | } | |
649 | ||
650 | static unsigned long xname_hash(const X509_NAME *a) | |
651 | { | |
652 | return X509_NAME_hash((X509_NAME *)a); | |
653 | } | |
654 | ||
0f113f3e | 655 | /** |
eb90a483 BL |
656 | * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed; |
657 | * it doesn't really have anything to do with clients (except that a common use | |
658 | * for a stack of CAs is to send it to the client). Actually, it doesn't have | |
659 | * much to do with CAs, either, since it will load any old cert. | |
660 | * \param file the file containing one or more certs. | |
661 | * \return a ::STACK containing the certs. | |
662 | */ | |
f73e07cf | 663 | STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file) |
0f113f3e | 664 | { |
7823d792 | 665 | BIO *in = BIO_new(BIO_s_file()); |
0f113f3e MC |
666 | X509 *x = NULL; |
667 | X509_NAME *xn = NULL; | |
7823d792 TF |
668 | STACK_OF(X509_NAME) *ret = NULL; |
669 | LHASH_OF(X509_NAME) *name_hash = | |
670 | lh_X509_NAME_new(xname_hash, xname_cmp); | |
0f113f3e | 671 | |
7823d792 | 672 | if ((name_hash == NULL) || (in == NULL)) { |
0f113f3e MC |
673 | SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE, ERR_R_MALLOC_FAILURE); |
674 | goto err; | |
675 | } | |
676 | ||
677 | if (!BIO_read_filename(in, file)) | |
678 | goto err; | |
679 | ||
680 | for (;;) { | |
681 | if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) | |
682 | break; | |
683 | if (ret == NULL) { | |
684 | ret = sk_X509_NAME_new_null(); | |
685 | if (ret == NULL) { | |
686 | SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE, ERR_R_MALLOC_FAILURE); | |
687 | goto err; | |
688 | } | |
689 | } | |
690 | if ((xn = X509_get_subject_name(x)) == NULL) | |
691 | goto err; | |
692 | /* check for duplicates */ | |
693 | xn = X509_NAME_dup(xn); | |
694 | if (xn == NULL) | |
695 | goto err; | |
7823d792 TF |
696 | if (lh_X509_NAME_retrieve(name_hash, xn) != NULL) { |
697 | /* Duplicate. */ | |
0f113f3e | 698 | X509_NAME_free(xn); |
7823d792 TF |
699 | } else { |
700 | lh_X509_NAME_insert(name_hash, xn); | |
0f113f3e MC |
701 | sk_X509_NAME_push(ret, xn); |
702 | } | |
703 | } | |
66696478 | 704 | goto done; |
0f113f3e | 705 | |
0f113f3e | 706 | err: |
66696478 RS |
707 | sk_X509_NAME_pop_free(ret, X509_NAME_free); |
708 | ret = NULL; | |
709 | done: | |
ca3a82c3 | 710 | BIO_free(in); |
222561fe | 711 | X509_free(x); |
7823d792 | 712 | lh_X509_NAME_free(name_hash); |
0f113f3e MC |
713 | if (ret != NULL) |
714 | ERR_clear_error(); | |
715 | return (ret); | |
716 | } | |
d02b48c6 | 717 | |
0f113f3e | 718 | /** |
eb90a483 BL |
719 | * Add a file of certs to a stack. |
720 | * \param stack the stack to add to. | |
721 | * \param file the file to add from. All certs in this file that are not | |
722 | * already in the stack will be added. | |
723 | * \return 1 for success, 0 for failure. Note that in the case of failure some | |
724 | * certs may have been added to \c stack. | |
725 | */ | |
726 | ||
661b361b | 727 | int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, |
0f113f3e MC |
728 | const char *file) |
729 | { | |
730 | BIO *in; | |
731 | X509 *x = NULL; | |
732 | X509_NAME *xn = NULL; | |
733 | int ret = 1; | |
734 | int (*oldcmp) (const X509_NAME *const *a, const X509_NAME *const *b); | |
735 | ||
7823d792 | 736 | oldcmp = sk_X509_NAME_set_cmp_func(stack, xname_sk_cmp); |
0f113f3e | 737 | |
9982cbbb | 738 | in = BIO_new(BIO_s_file()); |
0f113f3e MC |
739 | |
740 | if (in == NULL) { | |
741 | SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK, | |
742 | ERR_R_MALLOC_FAILURE); | |
743 | goto err; | |
744 | } | |
745 | ||
746 | if (!BIO_read_filename(in, file)) | |
747 | goto err; | |
748 | ||
749 | for (;;) { | |
750 | if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) | |
751 | break; | |
752 | if ((xn = X509_get_subject_name(x)) == NULL) | |
753 | goto err; | |
754 | xn = X509_NAME_dup(xn); | |
755 | if (xn == NULL) | |
756 | goto err; | |
757 | if (sk_X509_NAME_find(stack, xn) >= 0) | |
758 | X509_NAME_free(xn); | |
759 | else | |
760 | sk_X509_NAME_push(stack, xn); | |
761 | } | |
762 | ||
763 | ERR_clear_error(); | |
66696478 | 764 | goto done; |
0f113f3e | 765 | |
0f113f3e MC |
766 | err: |
767 | ret = 0; | |
66696478 | 768 | done: |
ca3a82c3 | 769 | BIO_free(in); |
25aaa98a | 770 | X509_free(x); |
0f113f3e | 771 | (void)sk_X509_NAME_set_cmp_func(stack, oldcmp); |
0f113f3e MC |
772 | return ret; |
773 | } | |
774 | ||
775 | /** | |
eb90a483 BL |
776 | * Add a directory of certs to a stack. |
777 | * \param stack the stack to append to. | |
778 | * \param dir the directory to append from. All files in this directory will be | |
779 | * examined as potential certs. Any that are acceptable to | |
72e442a3 | 780 | * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will be |
eb90a483 BL |
781 | * included. |
782 | * \return 1 for success, 0 for failure. Note that in the case of failure some | |
783 | * certs may have been added to \c stack. | |
784 | */ | |
785 | ||
661b361b | 786 | int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, |
0f113f3e MC |
787 | const char *dir) |
788 | { | |
789 | OPENSSL_DIR_CTX *d = NULL; | |
790 | const char *filename; | |
791 | int ret = 0; | |
eb90a483 | 792 | |
0f113f3e | 793 | /* Note that a side effect is that the CAs will be sorted by name */ |
4083a229 | 794 | |
0f113f3e MC |
795 | while ((filename = OPENSSL_DIR_read(&d, dir))) { |
796 | char buf[1024]; | |
797 | int r; | |
4083a229 | 798 | |
0f113f3e MC |
799 | if (strlen(dir) + strlen(filename) + 2 > sizeof buf) { |
800 | SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, | |
801 | SSL_R_PATH_TOO_LONG); | |
802 | goto err; | |
803 | } | |
4083a229 | 804 | #ifdef OPENSSL_SYS_VMS |
0f113f3e | 805 | r = BIO_snprintf(buf, sizeof buf, "%s%s", dir, filename); |
4083a229 | 806 | #else |
0f113f3e | 807 | r = BIO_snprintf(buf, sizeof buf, "%s/%s", dir, filename); |
4083a229 | 808 | #endif |
0f113f3e MC |
809 | if (r <= 0 || r >= (int)sizeof(buf)) |
810 | goto err; | |
811 | if (!SSL_add_file_cert_subjects_to_stack(stack, buf)) | |
812 | goto err; | |
813 | } | |
814 | ||
815 | if (errno) { | |
816 | SYSerr(SYS_F_OPENDIR, get_last_sys_error()); | |
817 | ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir, "')"); | |
818 | SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB); | |
819 | goto err; | |
820 | } | |
821 | ||
822 | ret = 1; | |
823 | ||
824 | err: | |
825 | if (d) | |
826 | OPENSSL_DIR_end(&d); | |
16203f7b | 827 | |
0f113f3e MC |
828 | return ret; |
829 | } | |
285046ec | 830 | |
4379d0e4 DSH |
831 | /* Add a certificate to a BUF_MEM structure */ |
832 | ||
833 | static int ssl_add_cert_to_buf(BUF_MEM *buf, unsigned long *l, X509 *x) | |
0f113f3e MC |
834 | { |
835 | int n; | |
836 | unsigned char *p; | |
837 | ||
838 | n = i2d_X509(x, NULL); | |
446ba8de | 839 | if (n < 0 || !BUF_MEM_grow_clean(buf, (int)(n + (*l) + 3))) { |
0f113f3e MC |
840 | SSLerr(SSL_F_SSL_ADD_CERT_TO_BUF, ERR_R_BUF_LIB); |
841 | return 0; | |
842 | } | |
843 | p = (unsigned char *)&(buf->data[*l]); | |
844 | l2n3(n, p); | |
446ba8de MC |
845 | n = i2d_X509(x, &p); |
846 | if (n < 0) { | |
847 | /* Shouldn't happen */ | |
848 | SSLerr(SSL_F_SSL_ADD_CERT_TO_BUF, ERR_R_BUF_LIB); | |
849 | return 0; | |
850 | } | |
0f113f3e MC |
851 | *l += n + 3; |
852 | ||
853 | return 1; | |
854 | } | |
4379d0e4 | 855 | |
8483a003 | 856 | /* Add certificate chain to internal SSL BUF_MEM structure */ |
c526ed41 | 857 | int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l) |
0f113f3e MC |
858 | { |
859 | BUF_MEM *buf = s->init_buf; | |
f0e0fd51 | 860 | int i, chain_count; |
0f113f3e MC |
861 | X509 *x; |
862 | STACK_OF(X509) *extra_certs; | |
f0e0fd51 | 863 | STACK_OF(X509) *chain = NULL; |
0f113f3e MC |
864 | X509_STORE *chain_store; |
865 | ||
866 | /* TLSv1 sends a chain with nothing in it, instead of an alert */ | |
867 | if (!BUF_MEM_grow_clean(buf, 10)) { | |
868 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, ERR_R_BUF_LIB); | |
869 | return 0; | |
870 | } | |
871 | ||
872 | if (!cpk || !cpk->x509) | |
873 | return 1; | |
874 | ||
875 | x = cpk->x509; | |
876 | ||
877 | /* | |
878 | * If we have a certificate specific chain use it, else use parent ctx. | |
879 | */ | |
880 | if (cpk->chain) | |
881 | extra_certs = cpk->chain; | |
882 | else | |
883 | extra_certs = s->ctx->extra_certs; | |
884 | ||
885 | if ((s->mode & SSL_MODE_NO_AUTO_CHAIN) || extra_certs) | |
886 | chain_store = NULL; | |
887 | else if (s->cert->chain_store) | |
888 | chain_store = s->cert->chain_store; | |
889 | else | |
890 | chain_store = s->ctx->cert_store; | |
891 | ||
892 | if (chain_store) { | |
f0e0fd51 | 893 | X509_STORE_CTX* xs_ctx = X509_STORE_CTX_new(); |
0f113f3e | 894 | |
f0e0fd51 RS |
895 | if (xs_ctx == NULL) { |
896 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, ERR_R_MALLOC_FAILURE); | |
897 | return (0); | |
898 | } | |
899 | if (!X509_STORE_CTX_init(xs_ctx, chain_store, x, NULL)) { | |
900 | X509_STORE_CTX_free(xs_ctx); | |
0f113f3e MC |
901 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, ERR_R_X509_LIB); |
902 | return (0); | |
903 | } | |
ae4d0c8d MC |
904 | /* |
905 | * It is valid for the chain not to be complete (because normally we | |
906 | * don't include the root cert in the chain). Therefore we deliberately | |
907 | * ignore the error return from this call. We're not actually verifying | |
908 | * the cert - we're just building as much of the chain as we can | |
909 | */ | |
f0e0fd51 | 910 | (void) X509_verify_cert(xs_ctx); |
0f113f3e MC |
911 | /* Don't leave errors in the queue */ |
912 | ERR_clear_error(); | |
f0e0fd51 RS |
913 | chain = X509_STORE_CTX_get0_chain(xs_ctx); |
914 | i = ssl_security_cert_chain(s, chain, NULL, 0); | |
0f113f3e | 915 | if (i != 1) { |
fbb82a60 VD |
916 | #if 0 |
917 | /* Dummy error calls so mkerr generates them */ | |
918 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, SSL_R_EE_KEY_TOO_SMALL); | |
919 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, SSL_R_CA_KEY_TOO_SMALL); | |
920 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, SSL_R_CA_MD_TOO_WEAK); | |
921 | #endif | |
f0e0fd51 | 922 | X509_STORE_CTX_free(xs_ctx); |
0f113f3e MC |
923 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, i); |
924 | return 0; | |
925 | } | |
f0e0fd51 RS |
926 | chain_count = sk_X509_num(chain); |
927 | for (i = 0; i < chain_count; i++) { | |
928 | x = sk_X509_value(chain, i); | |
0f113f3e MC |
929 | |
930 | if (!ssl_add_cert_to_buf(buf, l, x)) { | |
f0e0fd51 | 931 | X509_STORE_CTX_free(xs_ctx); |
0f113f3e MC |
932 | return 0; |
933 | } | |
934 | } | |
f0e0fd51 | 935 | X509_STORE_CTX_free(xs_ctx); |
0f113f3e MC |
936 | } else { |
937 | i = ssl_security_cert_chain(s, extra_certs, x, 0); | |
938 | if (i != 1) { | |
939 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, i); | |
940 | return 0; | |
941 | } | |
942 | if (!ssl_add_cert_to_buf(buf, l, x)) | |
943 | return 0; | |
944 | for (i = 0; i < sk_X509_num(extra_certs); i++) { | |
945 | x = sk_X509_value(extra_certs, i); | |
946 | if (!ssl_add_cert_to_buf(buf, l, x)) | |
947 | return 0; | |
948 | } | |
949 | } | |
950 | return 1; | |
951 | } | |
4379d0e4 | 952 | |
74ecfab4 | 953 | /* Build a certificate chain for current certificate */ |
b362ccab | 954 | int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags) |
0f113f3e MC |
955 | { |
956 | CERT *c = s ? s->cert : ctx->cert; | |
957 | CERT_PKEY *cpk = c->key; | |
958 | X509_STORE *chain_store = NULL; | |
f0e0fd51 | 959 | X509_STORE_CTX *xs_ctx = NULL; |
0f113f3e MC |
960 | STACK_OF(X509) *chain = NULL, *untrusted = NULL; |
961 | X509 *x; | |
962 | int i, rv = 0; | |
963 | unsigned long error; | |
964 | ||
965 | if (!cpk->x509) { | |
966 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, SSL_R_NO_CERTIFICATE_SET); | |
967 | goto err; | |
968 | } | |
969 | /* Rearranging and check the chain: add everything to a store */ | |
970 | if (flags & SSL_BUILD_CHAIN_FLAG_CHECK) { | |
971 | chain_store = X509_STORE_new(); | |
a71edf3b | 972 | if (chain_store == NULL) |
0f113f3e MC |
973 | goto err; |
974 | for (i = 0; i < sk_X509_num(cpk->chain); i++) { | |
975 | x = sk_X509_value(cpk->chain, i); | |
976 | if (!X509_STORE_add_cert(chain_store, x)) { | |
977 | error = ERR_peek_last_error(); | |
978 | if (ERR_GET_LIB(error) != ERR_LIB_X509 || | |
979 | ERR_GET_REASON(error) != | |
980 | X509_R_CERT_ALREADY_IN_HASH_TABLE) | |
981 | goto err; | |
982 | ERR_clear_error(); | |
983 | } | |
984 | } | |
985 | /* Add EE cert too: it might be self signed */ | |
986 | if (!X509_STORE_add_cert(chain_store, cpk->x509)) { | |
987 | error = ERR_peek_last_error(); | |
988 | if (ERR_GET_LIB(error) != ERR_LIB_X509 || | |
989 | ERR_GET_REASON(error) != X509_R_CERT_ALREADY_IN_HASH_TABLE) | |
990 | goto err; | |
991 | ERR_clear_error(); | |
992 | } | |
993 | } else { | |
994 | if (c->chain_store) | |
995 | chain_store = c->chain_store; | |
996 | else if (s) | |
997 | chain_store = s->ctx->cert_store; | |
998 | else | |
999 | chain_store = ctx->cert_store; | |
1000 | ||
1001 | if (flags & SSL_BUILD_CHAIN_FLAG_UNTRUSTED) | |
1002 | untrusted = cpk->chain; | |
1003 | } | |
1004 | ||
f0e0fd51 RS |
1005 | xs_ctx = X509_STORE_CTX_new(); |
1006 | if (xs_ctx == NULL) { | |
1007 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, ERR_R_MALLOC_FAILURE); | |
1008 | goto err; | |
1009 | } | |
1010 | if (!X509_STORE_CTX_init(xs_ctx, chain_store, cpk->x509, untrusted)) { | |
0f113f3e MC |
1011 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, ERR_R_X509_LIB); |
1012 | goto err; | |
1013 | } | |
1014 | /* Set suite B flags if needed */ | |
f0e0fd51 | 1015 | X509_STORE_CTX_set_flags(xs_ctx, |
0f113f3e MC |
1016 | c->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS); |
1017 | ||
f0e0fd51 | 1018 | i = X509_verify_cert(xs_ctx); |
0f113f3e MC |
1019 | if (i <= 0 && flags & SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR) { |
1020 | if (flags & SSL_BUILD_CHAIN_FLAG_CLEAR_ERROR) | |
1021 | ERR_clear_error(); | |
1022 | i = 1; | |
1023 | rv = 2; | |
1024 | } | |
1025 | if (i > 0) | |
f0e0fd51 | 1026 | chain = X509_STORE_CTX_get1_chain(xs_ctx); |
0f113f3e MC |
1027 | if (i <= 0) { |
1028 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, SSL_R_CERTIFICATE_VERIFY_FAILED); | |
f0e0fd51 | 1029 | i = X509_STORE_CTX_get_error(xs_ctx); |
0f113f3e MC |
1030 | ERR_add_error_data(2, "Verify error:", |
1031 | X509_verify_cert_error_string(i)); | |
1032 | ||
0f113f3e MC |
1033 | goto err; |
1034 | } | |
0f113f3e MC |
1035 | /* Remove EE certificate from chain */ |
1036 | x = sk_X509_shift(chain); | |
1037 | X509_free(x); | |
1038 | if (flags & SSL_BUILD_CHAIN_FLAG_NO_ROOT) { | |
1039 | if (sk_X509_num(chain) > 0) { | |
1040 | /* See if last cert is self signed */ | |
1041 | x = sk_X509_value(chain, sk_X509_num(chain) - 1); | |
a8d8e06b | 1042 | if (X509_get_extension_flags(x) & EXFLAG_SS) { |
0f113f3e MC |
1043 | x = sk_X509_pop(chain); |
1044 | X509_free(x); | |
1045 | } | |
1046 | } | |
1047 | } | |
1048 | /* | |
1049 | * Check security level of all CA certificates: EE will have been checked | |
1050 | * already. | |
1051 | */ | |
1052 | for (i = 0; i < sk_X509_num(chain); i++) { | |
1053 | x = sk_X509_value(chain, i); | |
1054 | rv = ssl_security_cert(s, ctx, x, 0, 0); | |
1055 | if (rv != 1) { | |
1056 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, rv); | |
1057 | sk_X509_pop_free(chain, X509_free); | |
1058 | rv = 0; | |
1059 | goto err; | |
1060 | } | |
1061 | } | |
222561fe | 1062 | sk_X509_pop_free(cpk->chain, X509_free); |
0f113f3e MC |
1063 | cpk->chain = chain; |
1064 | if (rv == 0) | |
1065 | rv = 1; | |
1066 | err: | |
1067 | if (flags & SSL_BUILD_CHAIN_FLAG_CHECK) | |
1068 | X509_STORE_free(chain_store); | |
f0e0fd51 | 1069 | X509_STORE_CTX_free(xs_ctx); |
0f113f3e MC |
1070 | |
1071 | return rv; | |
1072 | } | |
74ecfab4 DSH |
1073 | |
1074 | int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref) | |
0f113f3e MC |
1075 | { |
1076 | X509_STORE **pstore; | |
1077 | if (chain) | |
1078 | pstore = &c->chain_store; | |
1079 | else | |
1080 | pstore = &c->verify_store; | |
222561fe | 1081 | X509_STORE_free(*pstore); |
0f113f3e MC |
1082 | *pstore = store; |
1083 | if (ref && store) | |
c001ce33 | 1084 | X509_STORE_up_ref(store); |
0f113f3e MC |
1085 | return 1; |
1086 | } | |
1087 | ||
e4646a89 | 1088 | static int ssl_security_default_callback(const SSL *s, const SSL_CTX *ctx, int op, |
0f113f3e MC |
1089 | int bits, int nid, void *other, |
1090 | void *ex) | |
1091 | { | |
1092 | int level, minbits; | |
1093 | static const int minbits_table[5] = { 80, 112, 128, 192, 256 }; | |
1094 | if (ctx) | |
1095 | level = SSL_CTX_get_security_level(ctx); | |
1096 | else | |
1097 | level = SSL_get_security_level(s); | |
a7cf07b4 VD |
1098 | |
1099 | if (level <= 0) { | |
1100 | /* | |
1101 | * No EDH keys weaker than 1024-bits even at level 0, otherwise, | |
1102 | * anything goes. | |
1103 | */ | |
1104 | if (op == SSL_SECOP_TMP_DH && bits < 80) | |
1105 | return 0; | |
0f113f3e | 1106 | return 1; |
a7cf07b4 | 1107 | } |
0f113f3e MC |
1108 | if (level > 5) |
1109 | level = 5; | |
1110 | minbits = minbits_table[level - 1]; | |
1111 | switch (op) { | |
1112 | case SSL_SECOP_CIPHER_SUPPORTED: | |
1113 | case SSL_SECOP_CIPHER_SHARED: | |
1114 | case SSL_SECOP_CIPHER_CHECK: | |
1115 | { | |
1116 | const SSL_CIPHER *c = other; | |
1117 | /* No ciphers below security level */ | |
1118 | if (bits < minbits) | |
1119 | return 0; | |
1120 | /* No unauthenticated ciphersuites */ | |
1121 | if (c->algorithm_auth & SSL_aNULL) | |
1122 | return 0; | |
1123 | /* No MD5 mac ciphersuites */ | |
1124 | if (c->algorithm_mac & SSL_MD5) | |
1125 | return 0; | |
1126 | /* SHA1 HMAC is 160 bits of security */ | |
1127 | if (minbits > 160 && c->algorithm_mac & SSL_SHA1) | |
1128 | return 0; | |
1129 | /* Level 2: no RC4 */ | |
1130 | if (level >= 2 && c->algorithm_enc == SSL_RC4) | |
1131 | return 0; | |
1132 | /* Level 3: forward secure ciphersuites only */ | |
1133 | if (level >= 3 && !(c->algorithm_mkey & (SSL_kEDH | SSL_kEECDH))) | |
1134 | return 0; | |
1135 | break; | |
1136 | } | |
1137 | case SSL_SECOP_VERSION: | |
4fa52141 VD |
1138 | if (!SSL_IS_DTLS(s)) { |
1139 | /* SSLv3 not allowed at level 2 */ | |
1140 | if (nid <= SSL3_VERSION && level >= 2) | |
1141 | return 0; | |
1142 | /* TLS v1.1 and above only for level 3 */ | |
1143 | if (nid <= TLS1_VERSION && level >= 3) | |
1144 | return 0; | |
1145 | /* TLS v1.2 only for level 4 and above */ | |
1146 | if (nid <= TLS1_1_VERSION && level >= 4) | |
1147 | return 0; | |
1148 | } else { | |
1149 | /* DTLS v1.2 only for level 4 and above */ | |
1150 | if (DTLS_VERSION_LT(nid, DTLS1_2_VERSION) && level >= 4) | |
1151 | return 0; | |
1152 | } | |
0f113f3e MC |
1153 | break; |
1154 | ||
1155 | case SSL_SECOP_COMPRESSION: | |
1156 | if (level >= 2) | |
1157 | return 0; | |
1158 | break; | |
1159 | case SSL_SECOP_TICKET: | |
1160 | if (level >= 3) | |
1161 | return 0; | |
1162 | break; | |
1163 | default: | |
1164 | if (bits < minbits) | |
1165 | return 0; | |
1166 | } | |
1167 | return 1; | |
1168 | } | |
b362ccab | 1169 | |
e4646a89 | 1170 | int ssl_security(const SSL *s, int op, int bits, int nid, void *other) |
0f113f3e MC |
1171 | { |
1172 | return s->cert->sec_cb(s, NULL, op, bits, nid, other, s->cert->sec_ex); | |
1173 | } | |
b362ccab | 1174 | |
e4646a89 | 1175 | int ssl_ctx_security(const SSL_CTX *ctx, int op, int bits, int nid, void *other) |
0f113f3e MC |
1176 | { |
1177 | return ctx->cert->sec_cb(NULL, ctx, op, bits, nid, other, | |
1178 | ctx->cert->sec_ex); | |
1179 | } |