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0f113f3e MC |
1 | /* |
2 | * ! \file ssl/ssl_lib.c \brief Version independent SSL functions. | |
4f43d0e7 | 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 | */ | |
bf21446a | 60 | /* ==================================================================== |
52b8dad8 | 61 | * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. |
bf21446a 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. |
bf21446a 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 | |
78 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | |
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 | |
83 | * openssl-core@openssl.org. | |
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 | |
92 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | |
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 | * ==================================================================== | |
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 | * | |
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 | */ | |
ddac1974 NL |
118 | /* ==================================================================== |
119 | * Copyright 2005 Nokia. All rights reserved. | |
120 | * | |
121 | * The portions of the attached software ("Contribution") is developed by | |
122 | * Nokia Corporation and is licensed pursuant to the OpenSSL open source | |
123 | * license. | |
124 | * | |
125 | * The Contribution, originally written by Mika Kousa and Pasi Eronen of | |
126 | * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites | |
127 | * support (see RFC 4279) to OpenSSL. | |
128 | * | |
129 | * No patent licenses or other rights except those expressly stated in | |
130 | * the OpenSSL open source license shall be deemed granted or received | |
131 | * expressly, by implication, estoppel, or otherwise. | |
132 | * | |
133 | * No assurances are provided by Nokia that the Contribution does not | |
134 | * infringe the patent or other intellectual property rights of any third | |
135 | * party or that the license provides you with all the necessary rights | |
136 | * to make use of the Contribution. | |
137 | * | |
138 | * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN | |
139 | * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA | |
140 | * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY | |
141 | * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR | |
142 | * OTHERWISE. | |
143 | */ | |
bbb8de09 | 144 | |
f3f1cf84 | 145 | #ifdef REF_DEBUG |
0f113f3e | 146 | # include <assert.h> |
027e257b | 147 | #endif |
d02b48c6 | 148 | #include <stdio.h> |
7b63c0fa | 149 | #include "ssl_locl.h" |
ec577822 BM |
150 | #include <openssl/objects.h> |
151 | #include <openssl/lhash.h> | |
bb7cd4e3 | 152 | #include <openssl/x509v3.h> |
6434abbf | 153 | #include <openssl/rand.h> |
67c8e7f4 | 154 | #include <openssl/ocsp.h> |
3c27208f RS |
155 | #include <openssl/dh.h> |
156 | #include <openssl/engine.h> | |
07bbc92c | 157 | #include <openssl/async.h> |
3c27208f | 158 | #include <openssl/ct.h> |
0f113f3e | 159 | |
df2ee0e2 | 160 | const char SSL_version_str[] = OPENSSL_VERSION_TEXT; |
0f113f3e MC |
161 | |
162 | SSL3_ENC_METHOD ssl3_undef_enc_method = { | |
163 | /* | |
164 | * evil casts, but these functions are only called if there's a library | |
165 | * bug | |
166 | */ | |
d102d9df MC |
167 | (int (*)(SSL *, SSL3_RECORD *, unsigned int, int))ssl_undefined_function, |
168 | (int (*)(SSL *, SSL3_RECORD *, unsigned char *, int))ssl_undefined_function, | |
0f113f3e MC |
169 | ssl_undefined_function, |
170 | (int (*)(SSL *, unsigned char *, unsigned char *, int)) | |
171 | ssl_undefined_function, | |
172 | (int (*)(SSL *, int))ssl_undefined_function, | |
173 | (int (*)(SSL *, const char *, int, unsigned char *)) | |
174 | ssl_undefined_function, | |
175 | 0, /* finish_mac_length */ | |
0f113f3e MC |
176 | NULL, /* client_finished_label */ |
177 | 0, /* client_finished_label_len */ | |
178 | NULL, /* server_finished_label */ | |
179 | 0, /* server_finished_label_len */ | |
180 | (int (*)(int))ssl_undefined_function, | |
181 | (int (*)(SSL *, unsigned char *, size_t, const char *, | |
182 | size_t, const unsigned char *, size_t, | |
183 | int use_context))ssl_undefined_function, | |
184 | }; | |
d02b48c6 | 185 | |
07bbc92c MC |
186 | struct ssl_async_args { |
187 | SSL *s; | |
188 | void *buf; | |
189 | int num; | |
ec447924 | 190 | enum { READFUNC, WRITEFUNC, OTHERFUNC} type; |
add2f5ca | 191 | union { |
ec447924 MC |
192 | int (*func_read)(SSL *, void *, int); |
193 | int (*func_write)(SSL *, const void *, int); | |
194 | int (*func_other)(SSL *); | |
add2f5ca | 195 | } f; |
07bbc92c MC |
196 | }; |
197 | ||
919ba009 VD |
198 | static const struct { |
199 | uint8_t mtype; | |
200 | uint8_t ord; | |
201 | int nid; | |
202 | } dane_mds[] = { | |
203 | { DANETLS_MATCHING_FULL, 0, NID_undef }, | |
204 | { DANETLS_MATCHING_2256, 1, NID_sha256 }, | |
205 | { DANETLS_MATCHING_2512, 2, NID_sha512 }, | |
206 | }; | |
207 | ||
208 | static int dane_ctx_enable(struct dane_ctx_st *dctx) | |
209 | { | |
210 | const EVP_MD **mdevp; | |
211 | uint8_t *mdord; | |
212 | uint8_t mdmax = DANETLS_MATCHING_LAST; | |
213 | int n = ((int) mdmax) + 1; /* int to handle PrivMatch(255) */ | |
214 | size_t i; | |
215 | ||
216 | mdevp = OPENSSL_zalloc(n * sizeof(*mdevp)); | |
217 | mdord = OPENSSL_zalloc(n * sizeof(*mdord)); | |
218 | ||
219 | if (mdord == NULL || mdevp == NULL) { | |
220 | OPENSSL_free(mdevp); | |
221 | SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE); | |
222 | return 0; | |
223 | } | |
224 | ||
225 | /* Install default entries */ | |
226 | for (i = 0; i < OSSL_NELEM(dane_mds); ++i) { | |
227 | const EVP_MD *md; | |
228 | ||
229 | if (dane_mds[i].nid == NID_undef || | |
230 | (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL) | |
231 | continue; | |
232 | mdevp[dane_mds[i].mtype] = md; | |
233 | mdord[dane_mds[i].mtype] = dane_mds[i].ord; | |
234 | } | |
235 | ||
236 | dctx->mdevp = mdevp; | |
237 | dctx->mdord = mdord; | |
238 | dctx->mdmax = mdmax; | |
239 | ||
240 | return 1; | |
241 | } | |
242 | ||
243 | static void dane_ctx_final(struct dane_ctx_st *dctx) | |
244 | { | |
245 | OPENSSL_free(dctx->mdevp); | |
246 | dctx->mdevp = NULL; | |
247 | ||
248 | OPENSSL_free(dctx->mdord); | |
249 | dctx->mdord = NULL; | |
250 | dctx->mdmax = 0; | |
251 | } | |
252 | ||
253 | static void tlsa_free(danetls_record *t) | |
254 | { | |
255 | if (t == NULL) | |
256 | return; | |
257 | OPENSSL_free(t->data); | |
258 | EVP_PKEY_free(t->spki); | |
259 | OPENSSL_free(t); | |
260 | } | |
261 | ||
262 | static void dane_final(struct dane_st *dane) | |
263 | { | |
264 | sk_danetls_record_pop_free(dane->trecs, tlsa_free); | |
265 | dane->trecs = NULL; | |
266 | ||
267 | sk_X509_pop_free(dane->certs, X509_free); | |
268 | dane->certs = NULL; | |
269 | ||
270 | X509_free(dane->mcert); | |
271 | dane->mcert = NULL; | |
272 | dane->mtlsa = NULL; | |
273 | dane->mdpth = -1; | |
274 | dane->pdpth = -1; | |
275 | } | |
276 | ||
277 | /* | |
278 | * dane_copy - Copy dane configuration, sans verification state. | |
279 | */ | |
280 | static int ssl_dane_dup(SSL *to, SSL *from) | |
281 | { | |
282 | int num; | |
283 | int i; | |
284 | ||
285 | if (!DANETLS_ENABLED(&from->dane)) | |
286 | return 1; | |
287 | ||
288 | dane_final(&to->dane); | |
289 | ||
290 | num = sk_danetls_record_num(from->dane.trecs); | |
291 | for (i = 0; i < num; ++i) { | |
292 | danetls_record *t = sk_danetls_record_value(from->dane.trecs, i); | |
293 | if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype, | |
294 | t->data, t->dlen) <= 0) | |
295 | return 0; | |
296 | } | |
297 | return 1; | |
298 | } | |
299 | ||
300 | static int dane_mtype_set( | |
301 | struct dane_ctx_st *dctx, | |
302 | const EVP_MD *md, | |
303 | uint8_t mtype, | |
304 | uint8_t ord) | |
305 | { | |
306 | int i; | |
307 | ||
308 | if (mtype == DANETLS_MATCHING_FULL && md != NULL) { | |
309 | SSLerr(SSL_F_DANE_MTYPE_SET, | |
310 | SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL); | |
311 | return 0; | |
312 | } | |
313 | ||
314 | if (mtype > dctx->mdmax) { | |
315 | const EVP_MD **mdevp; | |
316 | uint8_t *mdord; | |
317 | int n = ((int) mtype) + 1; | |
318 | ||
319 | mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp)); | |
320 | if (mdevp == NULL) { | |
321 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
322 | return -1; | |
323 | } | |
324 | dctx->mdevp = mdevp; | |
325 | ||
326 | mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord)); | |
327 | if (mdord == NULL) { | |
328 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
329 | return -1; | |
330 | } | |
331 | dctx->mdord = mdord; | |
332 | ||
333 | /* Zero-fill any gaps */ | |
334 | for (i = dctx->mdmax+1; i < mtype; ++i) { | |
335 | mdevp[i] = NULL; | |
336 | mdord[i] = 0; | |
337 | } | |
338 | ||
339 | dctx->mdmax = mtype; | |
340 | } | |
341 | ||
342 | dctx->mdevp[mtype] = md; | |
343 | /* Coerce ordinal of disabled matching types to 0 */ | |
344 | dctx->mdord[mtype] = (md == NULL) ? 0 : ord; | |
345 | ||
346 | return 1; | |
347 | } | |
348 | ||
349 | static const EVP_MD *tlsa_md_get(struct dane_st *dane, uint8_t mtype) | |
350 | { | |
351 | if (mtype > dane->dctx->mdmax) | |
352 | return NULL; | |
353 | return dane->dctx->mdevp[mtype]; | |
354 | } | |
355 | ||
356 | static int dane_tlsa_add( | |
357 | struct dane_st *dane, | |
358 | uint8_t usage, | |
359 | uint8_t selector, | |
360 | uint8_t mtype, | |
361 | unsigned char *data, | |
362 | size_t dlen) | |
363 | { | |
364 | danetls_record *t; | |
365 | const EVP_MD *md = NULL; | |
366 | int ilen = (int)dlen; | |
367 | int i; | |
368 | ||
369 | if (dane->trecs == NULL) { | |
370 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED); | |
371 | return -1; | |
372 | } | |
373 | ||
374 | if (ilen < 0 || dlen != (size_t)ilen) { | |
375 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH); | |
376 | return 0; | |
377 | } | |
378 | ||
379 | if (usage > DANETLS_USAGE_LAST) { | |
380 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE); | |
381 | return 0; | |
382 | } | |
383 | ||
384 | if (selector > DANETLS_SELECTOR_LAST) { | |
385 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR); | |
386 | return 0; | |
387 | } | |
388 | ||
389 | if (mtype != DANETLS_MATCHING_FULL) { | |
390 | md = tlsa_md_get(dane, mtype); | |
391 | if (md == NULL) { | |
392 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE); | |
393 | return 0; | |
394 | } | |
395 | } | |
396 | ||
397 | if (md != NULL && dlen != (size_t)EVP_MD_size(md)) { | |
398 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH); | |
399 | return 0; | |
400 | } | |
401 | if (!data) { | |
402 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA); | |
403 | return 0; | |
404 | } | |
405 | ||
406 | if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) { | |
407 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
408 | return -1; | |
409 | } | |
410 | ||
411 | t->usage = usage; | |
412 | t->selector = selector; | |
413 | t->mtype = mtype; | |
414 | t->data = OPENSSL_malloc(ilen); | |
415 | if (t->data == NULL) { | |
416 | tlsa_free(t); | |
417 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
418 | return -1; | |
419 | } | |
420 | memcpy(t->data, data, ilen); | |
421 | t->dlen = ilen; | |
422 | ||
423 | /* Validate and cache full certificate or public key */ | |
424 | if (mtype == DANETLS_MATCHING_FULL) { | |
425 | const unsigned char *p = data; | |
426 | X509 *cert = NULL; | |
427 | EVP_PKEY *pkey = NULL; | |
428 | ||
429 | switch (selector) { | |
430 | case DANETLS_SELECTOR_CERT: | |
431 | if (!d2i_X509(&cert, &p, dlen) || p < data || | |
432 | dlen != (size_t)(p - data)) { | |
433 | tlsa_free(t); | |
434 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
435 | return 0; | |
436 | } | |
437 | if (X509_get0_pubkey(cert) == NULL) { | |
438 | tlsa_free(t); | |
439 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
440 | return 0; | |
441 | } | |
442 | ||
443 | if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) { | |
444 | X509_free(cert); | |
445 | break; | |
446 | } | |
447 | ||
448 | /* | |
449 | * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA | |
450 | * records that contain full certificates of trust-anchors that are | |
451 | * not present in the wire chain. For usage PKIX-TA(0), we augment | |
452 | * the chain with untrusted Full(0) certificates from DNS, in case | |
453 | * they are missing from the chain. | |
454 | */ | |
455 | if ((dane->certs == NULL && | |
456 | (dane->certs = sk_X509_new_null()) == NULL) || | |
457 | !sk_X509_push(dane->certs, cert)) { | |
458 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
459 | X509_free(cert); | |
460 | tlsa_free(t); | |
461 | return -1; | |
462 | } | |
463 | break; | |
464 | ||
465 | case DANETLS_SELECTOR_SPKI: | |
466 | if (!d2i_PUBKEY(&pkey, &p, dlen) || p < data || | |
467 | dlen != (size_t)(p - data)) { | |
468 | tlsa_free(t); | |
469 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY); | |
470 | return 0; | |
471 | } | |
472 | ||
473 | /* | |
474 | * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA | |
475 | * records that contain full bare keys of trust-anchors that are | |
476 | * not present in the wire chain. | |
477 | */ | |
478 | if (usage == DANETLS_USAGE_DANE_TA) | |
479 | t->spki = pkey; | |
480 | else | |
481 | EVP_PKEY_free(pkey); | |
482 | break; | |
483 | } | |
484 | } | |
485 | ||
486 | /*- | |
487 | * Find the right insertion point for the new record. | |
488 | * | |
489 | * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that | |
490 | * they can be processed first, as they require no chain building, and no | |
491 | * expiration or hostname checks. Because DANE-EE(3) is numerically | |
492 | * largest, this is accomplished via descending sort by "usage". | |
493 | * | |
494 | * We also sort in descending order by matching ordinal to simplify | |
495 | * the implementation of digest agility in the verification code. | |
496 | * | |
497 | * The choice of order for the selector is not significant, so we | |
498 | * use the same descending order for consistency. | |
499 | */ | |
500 | for (i = 0; i < sk_danetls_record_num(dane->trecs); ++i) { | |
501 | danetls_record *rec = sk_danetls_record_value(dane->trecs, i); | |
502 | if (rec->usage > usage) | |
503 | continue; | |
504 | if (rec->usage < usage) | |
505 | break; | |
506 | if (rec->selector > selector) | |
507 | continue; | |
508 | if (rec->selector < selector) | |
509 | break; | |
510 | if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype]) | |
511 | continue; | |
512 | break; | |
513 | } | |
514 | ||
515 | if (!sk_danetls_record_insert(dane->trecs, t, i)) { | |
516 | tlsa_free(t); | |
517 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
518 | return -1; | |
519 | } | |
520 | dane->umask |= DANETLS_USAGE_BIT(usage); | |
521 | ||
522 | return 1; | |
523 | } | |
524 | ||
d31fb0b5 RS |
525 | static void clear_ciphers(SSL *s) |
526 | { | |
527 | /* clear the current cipher */ | |
528 | ssl_clear_cipher_ctx(s); | |
529 | ssl_clear_hash_ctx(&s->read_hash); | |
530 | ssl_clear_hash_ctx(&s->write_hash); | |
531 | } | |
532 | ||
4f43d0e7 | 533 | int SSL_clear(SSL *s) |
0f113f3e | 534 | { |
0f113f3e MC |
535 | if (s->method == NULL) { |
536 | SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED); | |
537 | return (0); | |
538 | } | |
d02b48c6 | 539 | |
0f113f3e MC |
540 | if (ssl_clear_bad_session(s)) { |
541 | SSL_SESSION_free(s->session); | |
542 | s->session = NULL; | |
543 | } | |
d62bfb39 | 544 | |
0f113f3e MC |
545 | s->error = 0; |
546 | s->hit = 0; | |
547 | s->shutdown = 0; | |
d02b48c6 | 548 | |
0f113f3e MC |
549 | if (s->renegotiate) { |
550 | SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR); | |
551 | return 0; | |
552 | } | |
d02b48c6 | 553 | |
fe3a3291 | 554 | ossl_statem_clear(s); |
413c4f45 | 555 | |
0f113f3e MC |
556 | s->version = s->method->version; |
557 | s->client_version = s->version; | |
558 | s->rwstate = SSL_NOTHING; | |
d02b48c6 | 559 | |
25aaa98a RS |
560 | BUF_MEM_free(s->init_buf); |
561 | s->init_buf = NULL; | |
d31fb0b5 | 562 | clear_ciphers(s); |
0f113f3e | 563 | s->first_packet = 0; |
d02b48c6 | 564 | |
919ba009 VD |
565 | /* Reset DANE verification result state */ |
566 | s->dane.mdpth = -1; | |
567 | s->dane.pdpth = -1; | |
568 | X509_free(s->dane.mcert); | |
569 | s->dane.mcert = NULL; | |
570 | s->dane.mtlsa = NULL; | |
571 | ||
572 | /* Clear the verification result peername */ | |
573 | X509_VERIFY_PARAM_move_peername(s->param, NULL); | |
574 | ||
0f113f3e MC |
575 | /* |
576 | * Check to see if we were changed into a different method, if so, revert | |
577 | * back if we are not doing session-id reuse. | |
578 | */ | |
024f543c | 579 | if (!ossl_statem_get_in_handshake(s) && (s->session == NULL) |
0f113f3e MC |
580 | && (s->method != s->ctx->method)) { |
581 | s->method->ssl_free(s); | |
582 | s->method = s->ctx->method; | |
583 | if (!s->method->ssl_new(s)) | |
584 | return (0); | |
585 | } else | |
0f113f3e | 586 | s->method->ssl_clear(s); |
33d23b87 | 587 | |
af9752e5 | 588 | RECORD_LAYER_clear(&s->rlayer); |
33d23b87 | 589 | |
0f113f3e MC |
590 | return (1); |
591 | } | |
d02b48c6 | 592 | |
4f43d0e7 | 593 | /** Used to change an SSL_CTXs default SSL method type */ |
0f113f3e MC |
594 | int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) |
595 | { | |
596 | STACK_OF(SSL_CIPHER) *sk; | |
597 | ||
598 | ctx->method = meth; | |
599 | ||
600 | sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list), | |
601 | &(ctx->cipher_list_by_id), | |
602 | SSL_DEFAULT_CIPHER_LIST, ctx->cert); | |
603 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { | |
604 | SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, | |
605 | SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); | |
606 | return (0); | |
607 | } | |
608 | return (1); | |
609 | } | |
d02b48c6 | 610 | |
4f43d0e7 | 611 | SSL *SSL_new(SSL_CTX *ctx) |
0f113f3e MC |
612 | { |
613 | SSL *s; | |
614 | ||
615 | if (ctx == NULL) { | |
616 | SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX); | |
617 | return (NULL); | |
618 | } | |
619 | if (ctx->method == NULL) { | |
620 | SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); | |
621 | return (NULL); | |
622 | } | |
623 | ||
b51bce94 | 624 | s = OPENSSL_zalloc(sizeof(*s)); |
0f113f3e MC |
625 | if (s == NULL) |
626 | goto err; | |
0f113f3e | 627 | |
16203f7b AG |
628 | s->lock = CRYPTO_THREAD_lock_new(); |
629 | if (s->lock == NULL) { | |
630 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); | |
631 | OPENSSL_free(s); | |
632 | return NULL; | |
633 | } | |
634 | ||
c036e210 | 635 | RECORD_LAYER_init(&s->rlayer, s); |
28d59af8 | 636 | |
0f113f3e | 637 | s->options = ctx->options; |
7946ab33 KR |
638 | s->min_proto_version = ctx->min_proto_version; |
639 | s->max_proto_version = ctx->max_proto_version; | |
0f113f3e MC |
640 | s->mode = ctx->mode; |
641 | s->max_cert_list = ctx->max_cert_list; | |
0e04674e | 642 | s->references = 1; |
0f113f3e | 643 | |
2c382349 KR |
644 | /* |
645 | * Earlier library versions used to copy the pointer to the CERT, not | |
646 | * its contents; only when setting new parameters for the per-SSL | |
647 | * copy, ssl_cert_new would be called (and the direct reference to | |
648 | * the per-SSL_CTX settings would be lost, but those still were | |
649 | * indirectly accessed for various purposes, and for that reason they | |
650 | * used to be known as s->ctx->default_cert). Now we don't look at the | |
651 | * SSL_CTX's CERT after having duplicated it once. | |
652 | */ | |
653 | s->cert = ssl_cert_dup(ctx->cert); | |
654 | if (s->cert == NULL) | |
655 | goto err; | |
0f113f3e | 656 | |
52e1d7b1 | 657 | RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead); |
0f113f3e MC |
658 | s->msg_callback = ctx->msg_callback; |
659 | s->msg_callback_arg = ctx->msg_callback_arg; | |
660 | s->verify_mode = ctx->verify_mode; | |
661 | s->not_resumable_session_cb = ctx->not_resumable_session_cb; | |
0f113f3e MC |
662 | s->sid_ctx_length = ctx->sid_ctx_length; |
663 | OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); | |
664 | memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); | |
665 | s->verify_callback = ctx->default_verify_callback; | |
666 | s->generate_session_id = ctx->generate_session_id; | |
667 | ||
668 | s->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 669 | if (s->param == NULL) |
0f113f3e MC |
670 | goto err; |
671 | X509_VERIFY_PARAM_inherit(s->param, ctx->param); | |
0f113f3e MC |
672 | s->quiet_shutdown = ctx->quiet_shutdown; |
673 | s->max_send_fragment = ctx->max_send_fragment; | |
d102d9df MC |
674 | s->split_send_fragment = ctx->split_send_fragment; |
675 | s->max_pipelines = ctx->max_pipelines; | |
94777c9c MC |
676 | if (s->max_pipelines > 1) |
677 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
dad78fb1 MC |
678 | if (ctx->default_read_buf_len > 0) |
679 | SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len); | |
bf21446a | 680 | |
16203f7b | 681 | SSL_CTX_up_ref(ctx); |
0f113f3e | 682 | s->ctx = ctx; |
0f113f3e MC |
683 | s->tlsext_debug_cb = 0; |
684 | s->tlsext_debug_arg = NULL; | |
685 | s->tlsext_ticket_expected = 0; | |
686 | s->tlsext_status_type = -1; | |
687 | s->tlsext_status_expected = 0; | |
688 | s->tlsext_ocsp_ids = NULL; | |
689 | s->tlsext_ocsp_exts = NULL; | |
690 | s->tlsext_ocsp_resp = NULL; | |
691 | s->tlsext_ocsp_resplen = -1; | |
16203f7b | 692 | SSL_CTX_up_ref(ctx); |
0f113f3e MC |
693 | s->initial_ctx = ctx; |
694 | # ifndef OPENSSL_NO_EC | |
695 | if (ctx->tlsext_ecpointformatlist) { | |
696 | s->tlsext_ecpointformatlist = | |
7644a9ae RS |
697 | OPENSSL_memdup(ctx->tlsext_ecpointformatlist, |
698 | ctx->tlsext_ecpointformatlist_length); | |
0f113f3e MC |
699 | if (!s->tlsext_ecpointformatlist) |
700 | goto err; | |
701 | s->tlsext_ecpointformatlist_length = | |
702 | ctx->tlsext_ecpointformatlist_length; | |
703 | } | |
704 | if (ctx->tlsext_ellipticcurvelist) { | |
705 | s->tlsext_ellipticcurvelist = | |
7644a9ae RS |
706 | OPENSSL_memdup(ctx->tlsext_ellipticcurvelist, |
707 | ctx->tlsext_ellipticcurvelist_length); | |
0f113f3e MC |
708 | if (!s->tlsext_ellipticcurvelist) |
709 | goto err; | |
710 | s->tlsext_ellipticcurvelist_length = | |
711 | ctx->tlsext_ellipticcurvelist_length; | |
712 | } | |
713 | # endif | |
bf48836c | 714 | # ifndef OPENSSL_NO_NEXTPROTONEG |
0f113f3e | 715 | s->next_proto_negotiated = NULL; |
ee2ffc27 | 716 | # endif |
6f017a8f | 717 | |
0f113f3e MC |
718 | if (s->ctx->alpn_client_proto_list) { |
719 | s->alpn_client_proto_list = | |
720 | OPENSSL_malloc(s->ctx->alpn_client_proto_list_len); | |
721 | if (s->alpn_client_proto_list == NULL) | |
722 | goto err; | |
723 | memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list, | |
724 | s->ctx->alpn_client_proto_list_len); | |
725 | s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len; | |
726 | } | |
d02b48c6 | 727 | |
696178ed | 728 | s->verified_chain = NULL; |
0f113f3e | 729 | s->verify_result = X509_V_OK; |
d02b48c6 | 730 | |
a974e64a MC |
731 | s->default_passwd_callback = ctx->default_passwd_callback; |
732 | s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata; | |
733 | ||
0f113f3e | 734 | s->method = ctx->method; |
d02b48c6 | 735 | |
0f113f3e MC |
736 | if (!s->method->ssl_new(s)) |
737 | goto err; | |
d02b48c6 | 738 | |
0f113f3e | 739 | s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1; |
bf21446a | 740 | |
61986d32 | 741 | if (!SSL_clear(s)) |
69f68237 | 742 | goto err; |
58964a49 | 743 | |
0f113f3e | 744 | CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); |
58964a49 | 745 | |
ddac1974 | 746 | #ifndef OPENSSL_NO_PSK |
0f113f3e MC |
747 | s->psk_client_callback = ctx->psk_client_callback; |
748 | s->psk_server_callback = ctx->psk_server_callback; | |
ddac1974 NL |
749 | #endif |
750 | ||
07bbc92c MC |
751 | s->job = NULL; |
752 | ||
ed29e82a RP |
753 | #ifndef OPENSSL_NO_CT |
754 | if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback, | |
755 | ctx->ct_validation_callback_arg)) | |
756 | goto err; | |
757 | #endif | |
758 | ||
16203f7b | 759 | return s; |
0f113f3e | 760 | err: |
62adbcee | 761 | SSL_free(s); |
0f113f3e | 762 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); |
16203f7b | 763 | return NULL; |
0f113f3e | 764 | } |
d02b48c6 | 765 | |
a18a31e4 MC |
766 | void SSL_up_ref(SSL *s) |
767 | { | |
16203f7b AG |
768 | int i; |
769 | CRYPTO_atomic_add(&s->references, 1, &i, s->lock); | |
a18a31e4 MC |
770 | } |
771 | ||
0f113f3e MC |
772 | int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, |
773 | unsigned int sid_ctx_len) | |
774 | { | |
775 | if (sid_ctx_len > sizeof ctx->sid_ctx) { | |
776 | SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT, | |
777 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
778 | return 0; | |
779 | } | |
780 | ctx->sid_ctx_length = sid_ctx_len; | |
781 | memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); | |
4eb77b26 BM |
782 | |
783 | return 1; | |
0f113f3e | 784 | } |
4eb77b26 | 785 | |
0f113f3e MC |
786 | int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, |
787 | unsigned int sid_ctx_len) | |
788 | { | |
789 | if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { | |
790 | SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT, | |
791 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
792 | return 0; | |
793 | } | |
794 | ssl->sid_ctx_length = sid_ctx_len; | |
795 | memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); | |
b4cadc6e BL |
796 | |
797 | return 1; | |
0f113f3e | 798 | } |
b4cadc6e | 799 | |
dc644fe2 | 800 | int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) |
0f113f3e | 801 | { |
16203f7b | 802 | CRYPTO_THREAD_write_lock(ctx->lock); |
0f113f3e | 803 | ctx->generate_session_id = cb; |
16203f7b | 804 | CRYPTO_THREAD_unlock(ctx->lock); |
0f113f3e MC |
805 | return 1; |
806 | } | |
dc644fe2 GT |
807 | |
808 | int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) | |
0f113f3e | 809 | { |
16203f7b | 810 | CRYPTO_THREAD_write_lock(ssl->lock); |
0f113f3e | 811 | ssl->generate_session_id = cb; |
16203f7b | 812 | CRYPTO_THREAD_unlock(ssl->lock); |
0f113f3e MC |
813 | return 1; |
814 | } | |
dc644fe2 | 815 | |
f85c9904 | 816 | int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, |
0f113f3e MC |
817 | unsigned int id_len) |
818 | { | |
819 | /* | |
820 | * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how | |
821 | * we can "construct" a session to give us the desired check - ie. to | |
822 | * find if there's a session in the hash table that would conflict with | |
823 | * any new session built out of this id/id_len and the ssl_version in use | |
824 | * by this SSL. | |
825 | */ | |
826 | SSL_SESSION r, *p; | |
827 | ||
828 | if (id_len > sizeof r.session_id) | |
829 | return 0; | |
830 | ||
831 | r.ssl_version = ssl->version; | |
832 | r.session_id_length = id_len; | |
833 | memcpy(r.session_id, id, id_len); | |
834 | ||
16203f7b | 835 | CRYPTO_THREAD_read_lock(ssl->ctx->lock); |
0f113f3e | 836 | p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r); |
16203f7b | 837 | CRYPTO_THREAD_unlock(ssl->ctx->lock); |
0f113f3e MC |
838 | return (p != NULL); |
839 | } | |
dc644fe2 | 840 | |
bb7cd4e3 | 841 | int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) |
0f113f3e MC |
842 | { |
843 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
844 | } | |
bb7cd4e3 DSH |
845 | |
846 | int SSL_set_purpose(SSL *s, int purpose) | |
0f113f3e MC |
847 | { |
848 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
849 | } | |
926a56bf | 850 | |
bb7cd4e3 | 851 | int SSL_CTX_set_trust(SSL_CTX *s, int trust) |
0f113f3e MC |
852 | { |
853 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
854 | } | |
bb7cd4e3 DSH |
855 | |
856 | int SSL_set_trust(SSL *s, int trust) | |
0f113f3e MC |
857 | { |
858 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
859 | } | |
bb7cd4e3 | 860 | |
919ba009 VD |
861 | int SSL_set1_host(SSL *s, const char *hostname) |
862 | { | |
863 | return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); | |
864 | } | |
865 | ||
866 | int SSL_add1_host(SSL *s, const char *hostname) | |
867 | { | |
868 | return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0); | |
869 | } | |
870 | ||
871 | void SSL_set_hostflags(SSL *s, unsigned int flags) | |
872 | { | |
873 | X509_VERIFY_PARAM_set_hostflags(s->param, flags); | |
874 | } | |
875 | ||
876 | const char *SSL_get0_peername(SSL *s) | |
877 | { | |
878 | return X509_VERIFY_PARAM_get0_peername(s->param); | |
879 | } | |
880 | ||
881 | int SSL_CTX_dane_enable(SSL_CTX *ctx) | |
882 | { | |
883 | return dane_ctx_enable(&ctx->dane); | |
884 | } | |
885 | ||
886 | int SSL_dane_enable(SSL *s, const char *basedomain) | |
887 | { | |
888 | struct dane_st *dane = &s->dane; | |
889 | ||
890 | if (s->ctx->dane.mdmax == 0) { | |
891 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED); | |
892 | return 0; | |
893 | } | |
894 | if (dane->trecs != NULL) { | |
895 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED); | |
896 | return 0; | |
897 | } | |
898 | ||
8d887efa VD |
899 | /* |
900 | * Default SNI name. This rejects empty names, while set1_host below | |
901 | * accepts them and disables host name checks. To avoid side-effects with | |
902 | * invalid input, set the SNI name first. | |
903 | */ | |
904 | if (s->tlsext_hostname == NULL) { | |
905 | if (!SSL_set_tlsext_host_name(s, basedomain)) { | |
906 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); | |
907 | return -1; | |
908 | } | |
909 | } | |
910 | ||
919ba009 VD |
911 | /* Primary RFC6125 reference identifier */ |
912 | if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) { | |
913 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); | |
914 | return -1; | |
915 | } | |
916 | ||
919ba009 VD |
917 | dane->mdpth = -1; |
918 | dane->pdpth = -1; | |
919 | dane->dctx = &s->ctx->dane; | |
920 | dane->trecs = sk_danetls_record_new_null(); | |
921 | ||
922 | if (dane->trecs == NULL) { | |
923 | SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE); | |
924 | return -1; | |
925 | } | |
926 | return 1; | |
927 | } | |
928 | ||
929 | int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki) | |
930 | { | |
931 | struct dane_st *dane = &s->dane; | |
932 | ||
c0a445a9 | 933 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
934 | return -1; |
935 | if (dane->mtlsa) { | |
936 | if (mcert) | |
937 | *mcert = dane->mcert; | |
938 | if (mspki) | |
939 | *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL; | |
940 | } | |
941 | return dane->mdpth; | |
942 | } | |
943 | ||
944 | int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector, | |
945 | uint8_t *mtype, unsigned const char **data, size_t *dlen) | |
946 | { | |
947 | struct dane_st *dane = &s->dane; | |
948 | ||
c0a445a9 | 949 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
950 | return -1; |
951 | if (dane->mtlsa) { | |
952 | if (usage) | |
953 | *usage = dane->mtlsa->usage; | |
954 | if (selector) | |
955 | *selector = dane->mtlsa->selector; | |
956 | if (mtype) | |
957 | *mtype = dane->mtlsa->mtype; | |
958 | if (data) | |
959 | *data = dane->mtlsa->data; | |
960 | if (dlen) | |
961 | *dlen = dane->mtlsa->dlen; | |
962 | } | |
963 | return dane->mdpth; | |
964 | } | |
965 | ||
966 | struct dane_st *SSL_get0_dane(SSL *s) | |
967 | { | |
968 | return &s->dane; | |
969 | } | |
970 | ||
971 | int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector, | |
972 | uint8_t mtype, unsigned char *data, size_t dlen) | |
973 | { | |
974 | return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen); | |
975 | } | |
976 | ||
977 | int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype, uint8_t ord) | |
978 | { | |
979 | return dane_mtype_set(&ctx->dane, md, mtype, ord); | |
980 | } | |
981 | ||
ccf11751 | 982 | int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) |
0f113f3e MC |
983 | { |
984 | return X509_VERIFY_PARAM_set1(ctx->param, vpm); | |
985 | } | |
ccf11751 DSH |
986 | |
987 | int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) | |
0f113f3e MC |
988 | { |
989 | return X509_VERIFY_PARAM_set1(ssl->param, vpm); | |
990 | } | |
ccf11751 | 991 | |
7af31968 | 992 | X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx) |
0f113f3e MC |
993 | { |
994 | return ctx->param; | |
995 | } | |
7af31968 DSH |
996 | |
997 | X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl) | |
0f113f3e MC |
998 | { |
999 | return ssl->param; | |
1000 | } | |
7af31968 | 1001 | |
a5ee80b9 | 1002 | void SSL_certs_clear(SSL *s) |
0f113f3e MC |
1003 | { |
1004 | ssl_cert_clear_certs(s->cert); | |
1005 | } | |
a5ee80b9 | 1006 | |
4f43d0e7 | 1007 | void SSL_free(SSL *s) |
0f113f3e MC |
1008 | { |
1009 | int i; | |
58964a49 | 1010 | |
0f113f3e MC |
1011 | if (s == NULL) |
1012 | return; | |
e03ddfae | 1013 | |
16203f7b | 1014 | CRYPTO_atomic_add(&s->references, -1, &i, s->lock); |
f3f1cf84 | 1015 | REF_PRINT_COUNT("SSL", s); |
0f113f3e MC |
1016 | if (i > 0) |
1017 | return; | |
f3f1cf84 | 1018 | REF_ASSERT_ISNT(i < 0); |
d02b48c6 | 1019 | |
222561fe | 1020 | X509_VERIFY_PARAM_free(s->param); |
919ba009 | 1021 | dane_final(&s->dane); |
0f113f3e MC |
1022 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); |
1023 | ||
1024 | if (s->bbio != NULL) { | |
1025 | /* If the buffering BIO is in place, pop it off */ | |
1026 | if (s->bbio == s->wbio) { | |
1027 | s->wbio = BIO_pop(s->wbio); | |
1028 | } | |
1029 | BIO_free(s->bbio); | |
1030 | s->bbio = NULL; | |
1031 | } | |
ca3a82c3 RS |
1032 | BIO_free_all(s->rbio); |
1033 | if (s->wbio != s->rbio) | |
0f113f3e MC |
1034 | BIO_free_all(s->wbio); |
1035 | ||
25aaa98a | 1036 | BUF_MEM_free(s->init_buf); |
0f113f3e MC |
1037 | |
1038 | /* add extra stuff */ | |
25aaa98a RS |
1039 | sk_SSL_CIPHER_free(s->cipher_list); |
1040 | sk_SSL_CIPHER_free(s->cipher_list_by_id); | |
0f113f3e MC |
1041 | |
1042 | /* Make the next call work :-) */ | |
1043 | if (s->session != NULL) { | |
1044 | ssl_clear_bad_session(s); | |
1045 | SSL_SESSION_free(s->session); | |
1046 | } | |
1047 | ||
d31fb0b5 | 1048 | clear_ciphers(s); |
d02b48c6 | 1049 | |
e0e920b1 | 1050 | ssl_cert_free(s->cert); |
0f113f3e | 1051 | /* Free up if allocated */ |
d02b48c6 | 1052 | |
b548a1f1 | 1053 | OPENSSL_free(s->tlsext_hostname); |
e0e920b1 | 1054 | SSL_CTX_free(s->initial_ctx); |
e481f9b9 | 1055 | #ifndef OPENSSL_NO_EC |
b548a1f1 RS |
1056 | OPENSSL_free(s->tlsext_ecpointformatlist); |
1057 | OPENSSL_free(s->tlsext_ellipticcurvelist); | |
e481f9b9 | 1058 | #endif /* OPENSSL_NO_EC */ |
222561fe | 1059 | sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free); |
3e41ac35 | 1060 | #ifndef OPENSSL_NO_OCSP |
25aaa98a | 1061 | sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); |
3e41ac35 | 1062 | #endif |
ed29e82a RP |
1063 | #ifndef OPENSSL_NO_CT |
1064 | SCT_LIST_free(s->scts); | |
1065 | OPENSSL_free(s->tlsext_scts); | |
1066 | #endif | |
b548a1f1 RS |
1067 | OPENSSL_free(s->tlsext_ocsp_resp); |
1068 | OPENSSL_free(s->alpn_client_proto_list); | |
0f113f3e | 1069 | |
222561fe | 1070 | sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free); |
0f113f3e | 1071 | |
696178ed DSH |
1072 | sk_X509_pop_free(s->verified_chain, X509_free); |
1073 | ||
0f113f3e MC |
1074 | if (s->method != NULL) |
1075 | s->method->ssl_free(s); | |
1076 | ||
f161995e | 1077 | RECORD_LAYER_release(&s->rlayer); |
33d23b87 | 1078 | |
e0e920b1 | 1079 | SSL_CTX_free(s->ctx); |
7c3908dd | 1080 | |
ff75a257 MC |
1081 | ASYNC_WAIT_CTX_free(s->waitctx); |
1082 | ||
e481f9b9 | 1083 | #if !defined(OPENSSL_NO_NEXTPROTONEG) |
b548a1f1 | 1084 | OPENSSL_free(s->next_proto_negotiated); |
ee2ffc27 BL |
1085 | #endif |
1086 | ||
e783bae2 | 1087 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 1088 | sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); |
0f113f3e MC |
1089 | #endif |
1090 | ||
16203f7b AG |
1091 | CRYPTO_THREAD_lock_free(s->lock); |
1092 | ||
0f113f3e MC |
1093 | OPENSSL_free(s); |
1094 | } | |
1095 | ||
3ffbe008 MC |
1096 | void SSL_set_rbio(SSL *s, BIO *rbio) |
1097 | { | |
ca3a82c3 | 1098 | if (s->rbio != rbio) |
3ffbe008 MC |
1099 | BIO_free_all(s->rbio); |
1100 | s->rbio = rbio; | |
1101 | } | |
1102 | ||
1103 | void SSL_set_wbio(SSL *s, BIO *wbio) | |
0f113f3e MC |
1104 | { |
1105 | /* | |
1106 | * If the output buffering BIO is still in place, remove it | |
1107 | */ | |
1108 | if (s->bbio != NULL) { | |
1109 | if (s->wbio == s->bbio) { | |
a146ae55 MC |
1110 | s->wbio = BIO_next(s->wbio); |
1111 | BIO_set_next(s->bbio, NULL); | |
0f113f3e MC |
1112 | } |
1113 | } | |
ca3a82c3 | 1114 | if (s->wbio != wbio && s->rbio != s->wbio) |
0f113f3e | 1115 | BIO_free_all(s->wbio); |
0f113f3e MC |
1116 | s->wbio = wbio; |
1117 | } | |
d02b48c6 | 1118 | |
3ffbe008 MC |
1119 | void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) |
1120 | { | |
1121 | SSL_set_wbio(s, wbio); | |
1122 | SSL_set_rbio(s, rbio); | |
1123 | } | |
1124 | ||
0821bcd4 | 1125 | BIO *SSL_get_rbio(const SSL *s) |
0f113f3e MC |
1126 | { |
1127 | return (s->rbio); | |
1128 | } | |
d02b48c6 | 1129 | |
0821bcd4 | 1130 | BIO *SSL_get_wbio(const SSL *s) |
0f113f3e MC |
1131 | { |
1132 | return (s->wbio); | |
1133 | } | |
d02b48c6 | 1134 | |
0821bcd4 | 1135 | int SSL_get_fd(const SSL *s) |
0f113f3e MC |
1136 | { |
1137 | return (SSL_get_rfd(s)); | |
1138 | } | |
24cbf3ef | 1139 | |
0821bcd4 | 1140 | int SSL_get_rfd(const SSL *s) |
0f113f3e MC |
1141 | { |
1142 | int ret = -1; | |
1143 | BIO *b, *r; | |
1144 | ||
1145 | b = SSL_get_rbio(s); | |
1146 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1147 | if (r != NULL) | |
1148 | BIO_get_fd(r, &ret); | |
1149 | return (ret); | |
1150 | } | |
d02b48c6 | 1151 | |
0821bcd4 | 1152 | int SSL_get_wfd(const SSL *s) |
0f113f3e MC |
1153 | { |
1154 | int ret = -1; | |
1155 | BIO *b, *r; | |
1156 | ||
1157 | b = SSL_get_wbio(s); | |
1158 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1159 | if (r != NULL) | |
1160 | BIO_get_fd(r, &ret); | |
1161 | return (ret); | |
1162 | } | |
24cbf3ef | 1163 | |
bc36ee62 | 1164 | #ifndef OPENSSL_NO_SOCK |
0f113f3e MC |
1165 | int SSL_set_fd(SSL *s, int fd) |
1166 | { | |
1167 | int ret = 0; | |
1168 | BIO *bio = NULL; | |
1169 | ||
1170 | bio = BIO_new(BIO_s_socket()); | |
1171 | ||
1172 | if (bio == NULL) { | |
1173 | SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB); | |
1174 | goto err; | |
1175 | } | |
1176 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
1177 | SSL_set_bio(s, bio, bio); | |
1178 | ret = 1; | |
1179 | err: | |
1180 | return (ret); | |
1181 | } | |
d02b48c6 | 1182 | |
0f113f3e MC |
1183 | int SSL_set_wfd(SSL *s, int fd) |
1184 | { | |
1185 | int ret = 0; | |
1186 | BIO *bio = NULL; | |
1187 | ||
1188 | if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) | |
1189 | || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { | |
1190 | bio = BIO_new(BIO_s_socket()); | |
1191 | ||
1192 | if (bio == NULL) { | |
1193 | SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB); | |
1194 | goto err; | |
1195 | } | |
1196 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
1197 | SSL_set_bio(s, SSL_get_rbio(s), bio); | |
1198 | } else | |
1199 | SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); | |
1200 | ret = 1; | |
1201 | err: | |
1202 | return (ret); | |
1203 | } | |
1204 | ||
1205 | int SSL_set_rfd(SSL *s, int fd) | |
1206 | { | |
1207 | int ret = 0; | |
1208 | BIO *bio = NULL; | |
1209 | ||
1210 | if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) | |
1211 | || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { | |
1212 | bio = BIO_new(BIO_s_socket()); | |
1213 | ||
1214 | if (bio == NULL) { | |
1215 | SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB); | |
1216 | goto err; | |
1217 | } | |
1218 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
1219 | SSL_set_bio(s, bio, SSL_get_wbio(s)); | |
1220 | } else | |
1221 | SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); | |
1222 | ret = 1; | |
1223 | err: | |
1224 | return (ret); | |
1225 | } | |
1226 | #endif | |
ca03109c BM |
1227 | |
1228 | /* return length of latest Finished message we sent, copy to 'buf' */ | |
0821bcd4 | 1229 | size_t SSL_get_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1230 | { |
1231 | size_t ret = 0; | |
1232 | ||
1233 | if (s->s3 != NULL) { | |
1234 | ret = s->s3->tmp.finish_md_len; | |
1235 | if (count > ret) | |
1236 | count = ret; | |
1237 | memcpy(buf, s->s3->tmp.finish_md, count); | |
1238 | } | |
1239 | return ret; | |
1240 | } | |
ca03109c BM |
1241 | |
1242 | /* return length of latest Finished message we expected, copy to 'buf' */ | |
0821bcd4 | 1243 | size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1244 | { |
1245 | size_t ret = 0; | |
ca03109c | 1246 | |
0f113f3e MC |
1247 | if (s->s3 != NULL) { |
1248 | ret = s->s3->tmp.peer_finish_md_len; | |
1249 | if (count > ret) | |
1250 | count = ret; | |
1251 | memcpy(buf, s->s3->tmp.peer_finish_md, count); | |
1252 | } | |
1253 | return ret; | |
1254 | } | |
ca03109c | 1255 | |
0821bcd4 | 1256 | int SSL_get_verify_mode(const SSL *s) |
0f113f3e MC |
1257 | { |
1258 | return (s->verify_mode); | |
1259 | } | |
d02b48c6 | 1260 | |
0821bcd4 | 1261 | int SSL_get_verify_depth(const SSL *s) |
0f113f3e MC |
1262 | { |
1263 | return X509_VERIFY_PARAM_get_depth(s->param); | |
1264 | } | |
7f89714e | 1265 | |
0f113f3e MC |
1266 | int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) { |
1267 | return (s->verify_callback); | |
1268 | } | |
d02b48c6 | 1269 | |
0821bcd4 | 1270 | int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) |
0f113f3e MC |
1271 | { |
1272 | return (ctx->verify_mode); | |
1273 | } | |
d02b48c6 | 1274 | |
0821bcd4 | 1275 | int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) |
0f113f3e MC |
1276 | { |
1277 | return X509_VERIFY_PARAM_get_depth(ctx->param); | |
1278 | } | |
1279 | ||
1280 | int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) { | |
1281 | return (ctx->default_verify_callback); | |
1282 | } | |
1283 | ||
1284 | void SSL_set_verify(SSL *s, int mode, | |
1285 | int (*callback) (int ok, X509_STORE_CTX *ctx)) | |
1286 | { | |
1287 | s->verify_mode = mode; | |
1288 | if (callback != NULL) | |
1289 | s->verify_callback = callback; | |
1290 | } | |
1291 | ||
1292 | void SSL_set_verify_depth(SSL *s, int depth) | |
1293 | { | |
1294 | X509_VERIFY_PARAM_set_depth(s->param, depth); | |
1295 | } | |
1296 | ||
1297 | void SSL_set_read_ahead(SSL *s, int yes) | |
1298 | { | |
52e1d7b1 | 1299 | RECORD_LAYER_set_read_ahead(&s->rlayer, yes); |
0f113f3e | 1300 | } |
d02b48c6 | 1301 | |
0821bcd4 | 1302 | int SSL_get_read_ahead(const SSL *s) |
0f113f3e | 1303 | { |
52e1d7b1 | 1304 | return RECORD_LAYER_get_read_ahead(&s->rlayer); |
0f113f3e | 1305 | } |
d02b48c6 | 1306 | |
0821bcd4 | 1307 | int SSL_pending(const SSL *s) |
0f113f3e MC |
1308 | { |
1309 | /* | |
1310 | * SSL_pending cannot work properly if read-ahead is enabled | |
1311 | * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is | |
1312 | * impossible to fix since SSL_pending cannot report errors that may be | |
1313 | * observed while scanning the new data. (Note that SSL_pending() is | |
1314 | * often used as a boolean value, so we'd better not return -1.) | |
1315 | */ | |
1316 | return (s->method->ssl_pending(s)); | |
1317 | } | |
d02b48c6 | 1318 | |
49580f25 MC |
1319 | int SSL_has_pending(const SSL *s) |
1320 | { | |
1321 | /* | |
1322 | * Similar to SSL_pending() but returns a 1 to indicate that we have | |
1323 | * unprocessed data available or 0 otherwise (as opposed to the number of | |
1324 | * bytes available). Unlike SSL_pending() this will take into account | |
1325 | * read_ahead data. A 1 return simply indicates that we have unprocessed | |
1326 | * data. That data may not result in any application data, or we may fail | |
1327 | * to parse the records for some reason. | |
1328 | */ | |
1329 | if (SSL_pending(s)) | |
1330 | return 1; | |
1331 | ||
1332 | return RECORD_LAYER_read_pending(&s->rlayer); | |
1333 | } | |
1334 | ||
0821bcd4 | 1335 | X509 *SSL_get_peer_certificate(const SSL *s) |
0f113f3e MC |
1336 | { |
1337 | X509 *r; | |
d02b48c6 | 1338 | |
0f113f3e MC |
1339 | if ((s == NULL) || (s->session == NULL)) |
1340 | r = NULL; | |
1341 | else | |
1342 | r = s->session->peer; | |
d02b48c6 | 1343 | |
0f113f3e MC |
1344 | if (r == NULL) |
1345 | return (r); | |
d02b48c6 | 1346 | |
05f0fb9f | 1347 | X509_up_ref(r); |
0f113f3e MC |
1348 | |
1349 | return (r); | |
1350 | } | |
d02b48c6 | 1351 | |
0821bcd4 | 1352 | STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) |
0f113f3e MC |
1353 | { |
1354 | STACK_OF(X509) *r; | |
1355 | ||
c34b0f99 | 1356 | if ((s == NULL) || (s->session == NULL)) |
0f113f3e MC |
1357 | r = NULL; |
1358 | else | |
c34b0f99 | 1359 | r = s->session->peer_chain; |
0f113f3e MC |
1360 | |
1361 | /* | |
1362 | * If we are a client, cert_chain includes the peer's own certificate; if | |
1363 | * we are a server, it does not. | |
1364 | */ | |
1365 | ||
1366 | return (r); | |
1367 | } | |
1368 | ||
1369 | /* | |
1370 | * Now in theory, since the calling process own 't' it should be safe to | |
1371 | * modify. We need to be able to read f without being hassled | |
1372 | */ | |
17dd65e6 | 1373 | int SSL_copy_session_id(SSL *t, const SSL *f) |
0f113f3e | 1374 | { |
16203f7b | 1375 | int i; |
0f113f3e | 1376 | /* Do we need to to SSL locking? */ |
61986d32 | 1377 | if (!SSL_set_session(t, SSL_get_session(f))) { |
17dd65e6 | 1378 | return 0; |
69f68237 | 1379 | } |
0f113f3e MC |
1380 | |
1381 | /* | |
87d9cafa | 1382 | * what if we are setup for one protocol version but want to talk another |
0f113f3e MC |
1383 | */ |
1384 | if (t->method != f->method) { | |
919ba009 VD |
1385 | t->method->ssl_free(t); |
1386 | t->method = f->method; | |
1387 | if (t->method->ssl_new(t) == 0) | |
1388 | return 0; | |
0f113f3e MC |
1389 | } |
1390 | ||
16203f7b | 1391 | CRYPTO_atomic_add(&f->cert->references, 1, &i, f->cert->lock); |
24a0d393 KR |
1392 | ssl_cert_free(t->cert); |
1393 | t->cert = f->cert; | |
61986d32 | 1394 | if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) { |
17dd65e6 | 1395 | return 0; |
69f68237 | 1396 | } |
17dd65e6 MC |
1397 | |
1398 | return 1; | |
0f113f3e | 1399 | } |
d02b48c6 | 1400 | |
58964a49 | 1401 | /* Fix this so it checks all the valid key/cert options */ |
0821bcd4 | 1402 | int SSL_CTX_check_private_key(const SSL_CTX *ctx) |
0f113f3e MC |
1403 | { |
1404 | if ((ctx == NULL) || | |
24a0d393 | 1405 | (ctx->cert->key->x509 == NULL)) { |
0f113f3e MC |
1406 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, |
1407 | SSL_R_NO_CERTIFICATE_ASSIGNED); | |
1408 | return (0); | |
1409 | } | |
1410 | if (ctx->cert->key->privatekey == NULL) { | |
1411 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, | |
1412 | SSL_R_NO_PRIVATE_KEY_ASSIGNED); | |
1413 | return (0); | |
1414 | } | |
1415 | return (X509_check_private_key | |
1416 | (ctx->cert->key->x509, ctx->cert->key->privatekey)); | |
1417 | } | |
d02b48c6 | 1418 | |
58964a49 | 1419 | /* Fix this function so that it takes an optional type parameter */ |
0821bcd4 | 1420 | int SSL_check_private_key(const SSL *ssl) |
0f113f3e MC |
1421 | { |
1422 | if (ssl == NULL) { | |
1423 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER); | |
1424 | return (0); | |
1425 | } | |
0f113f3e MC |
1426 | if (ssl->cert->key->x509 == NULL) { |
1427 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
1428 | return (0); | |
1429 | } | |
1430 | if (ssl->cert->key->privatekey == NULL) { | |
1431 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); | |
1432 | return (0); | |
1433 | } | |
1434 | return (X509_check_private_key(ssl->cert->key->x509, | |
1435 | ssl->cert->key->privatekey)); | |
1436 | } | |
d02b48c6 | 1437 | |
07bbc92c MC |
1438 | int SSL_waiting_for_async(SSL *s) |
1439 | { | |
82676094 MC |
1440 | if(s->job) |
1441 | return 1; | |
1442 | ||
07bbc92c MC |
1443 | return 0; |
1444 | } | |
1445 | ||
ff75a257 | 1446 | int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds) |
f4da39d2 | 1447 | { |
ff75a257 MC |
1448 | ASYNC_WAIT_CTX *ctx = s->waitctx; |
1449 | ||
1450 | if (ctx == NULL) | |
1451 | return 0; | |
1452 | return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds); | |
1453 | } | |
f4da39d2 | 1454 | |
ff75a257 MC |
1455 | int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds, |
1456 | OSSL_ASYNC_FD *delfd, size_t *numdelfds) | |
1457 | { | |
1458 | ASYNC_WAIT_CTX *ctx = s->waitctx; | |
1459 | ||
1460 | if (ctx == NULL) | |
1461 | return 0; | |
1462 | return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd, | |
1463 | numdelfds); | |
f4da39d2 MC |
1464 | } |
1465 | ||
4f43d0e7 | 1466 | int SSL_accept(SSL *s) |
0f113f3e | 1467 | { |
c4c32155 | 1468 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1469 | /* Not properly initialized yet */ |
1470 | SSL_set_accept_state(s); | |
07bbc92c | 1471 | } |
add2f5ca MC |
1472 | |
1473 | return SSL_do_handshake(s); | |
0f113f3e | 1474 | } |
d02b48c6 | 1475 | |
4f43d0e7 | 1476 | int SSL_connect(SSL *s) |
0f113f3e | 1477 | { |
c4c32155 | 1478 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1479 | /* Not properly initialized yet */ |
1480 | SSL_set_connect_state(s); | |
add2f5ca | 1481 | } |
b31b04d9 | 1482 | |
add2f5ca | 1483 | return SSL_do_handshake(s); |
0f113f3e | 1484 | } |
d02b48c6 | 1485 | |
0821bcd4 | 1486 | long SSL_get_default_timeout(const SSL *s) |
0f113f3e MC |
1487 | { |
1488 | return (s->method->get_timeout()); | |
1489 | } | |
1490 | ||
7fecbf6f | 1491 | static int ssl_start_async_job(SSL *s, struct ssl_async_args *args, |
add2f5ca MC |
1492 | int (*func)(void *)) { |
1493 | int ret; | |
ff75a257 MC |
1494 | if (s->waitctx == NULL) { |
1495 | s->waitctx = ASYNC_WAIT_CTX_new(); | |
1496 | if (s->waitctx == NULL) | |
1497 | return -1; | |
1498 | } | |
1499 | switch(ASYNC_start_job(&s->job, s->waitctx, &ret, func, args, | |
add2f5ca MC |
1500 | sizeof(struct ssl_async_args))) { |
1501 | case ASYNC_ERR: | |
1502 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1503 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC); |
add2f5ca MC |
1504 | return -1; |
1505 | case ASYNC_PAUSE: | |
1506 | s->rwstate = SSL_ASYNC_PAUSED; | |
1507 | return -1; | |
1508 | case ASYNC_FINISH: | |
1509 | s->job = NULL; | |
1510 | return ret; | |
1511 | default: | |
1512 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1513 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR); |
add2f5ca MC |
1514 | /* Shouldn't happen */ |
1515 | return -1; | |
1516 | } | |
1517 | } | |
07bbc92c | 1518 | |
add2f5ca | 1519 | static int ssl_io_intern(void *vargs) |
07bbc92c MC |
1520 | { |
1521 | struct ssl_async_args *args; | |
1522 | SSL *s; | |
1523 | void *buf; | |
1524 | int num; | |
1525 | ||
1526 | args = (struct ssl_async_args *)vargs; | |
1527 | s = args->s; | |
1528 | buf = args->buf; | |
1529 | num = args->num; | |
ec447924 MC |
1530 | switch (args->type) { |
1531 | case READFUNC: | |
1532 | return args->f.func_read(s, buf, num); | |
1533 | case WRITEFUNC: | |
1534 | return args->f.func_write(s, buf, num); | |
1535 | case OTHERFUNC: | |
1536 | return args->f.func_other(s); | |
1537 | } | |
1538 | return -1; | |
07bbc92c MC |
1539 | } |
1540 | ||
0f113f3e MC |
1541 | int SSL_read(SSL *s, void *buf, int num) |
1542 | { | |
c4c32155 | 1543 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1544 | SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); |
1545 | return -1; | |
1546 | } | |
1547 | ||
1548 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
1549 | s->rwstate = SSL_NOTHING; | |
1550 | return (0); | |
1551 | } | |
07bbc92c | 1552 | |
44a27ac2 | 1553 | if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca MC |
1554 | struct ssl_async_args args; |
1555 | ||
1556 | args.s = s; | |
1557 | args.buf = buf; | |
1558 | args.num = num; | |
ec447924 MC |
1559 | args.type = READFUNC; |
1560 | args.f.func_read = s->method->ssl_read; | |
add2f5ca | 1561 | |
7fecbf6f | 1562 | return ssl_start_async_job(s, &args, ssl_io_intern); |
07bbc92c MC |
1563 | } else { |
1564 | return s->method->ssl_read(s, buf, num); | |
1565 | } | |
0f113f3e MC |
1566 | } |
1567 | ||
1568 | int SSL_peek(SSL *s, void *buf, int num) | |
1569 | { | |
c4c32155 | 1570 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1571 | SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED); |
1572 | return -1; | |
1573 | } | |
1574 | ||
1575 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
1576 | return (0); | |
1577 | } | |
add2f5ca MC |
1578 | if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
1579 | struct ssl_async_args args; | |
0f113f3e | 1580 | |
add2f5ca MC |
1581 | args.s = s; |
1582 | args.buf = buf; | |
1583 | args.num = num; | |
ec447924 MC |
1584 | args.type = READFUNC; |
1585 | args.f.func_read = s->method->ssl_peek; | |
07bbc92c | 1586 | |
7fecbf6f | 1587 | return ssl_start_async_job(s, &args, ssl_io_intern); |
add2f5ca MC |
1588 | } else { |
1589 | return s->method->ssl_peek(s, buf, num); | |
1590 | } | |
07bbc92c MC |
1591 | } |
1592 | ||
0f113f3e MC |
1593 | int SSL_write(SSL *s, const void *buf, int num) |
1594 | { | |
c4c32155 | 1595 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1596 | SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED); |
1597 | return -1; | |
1598 | } | |
1599 | ||
1600 | if (s->shutdown & SSL_SENT_SHUTDOWN) { | |
1601 | s->rwstate = SSL_NOTHING; | |
1602 | SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN); | |
1603 | return (-1); | |
1604 | } | |
07bbc92c | 1605 | |
44a27ac2 | 1606 | if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca MC |
1607 | struct ssl_async_args args; |
1608 | ||
1609 | args.s = s; | |
1610 | args.buf = (void *)buf; | |
1611 | args.num = num; | |
ec447924 MC |
1612 | args.type = WRITEFUNC; |
1613 | args.f.func_write = s->method->ssl_write; | |
add2f5ca | 1614 | |
7fecbf6f | 1615 | return ssl_start_async_job(s, &args, ssl_io_intern); |
07bbc92c MC |
1616 | } else { |
1617 | return s->method->ssl_write(s, buf, num); | |
1618 | } | |
0f113f3e | 1619 | } |
d02b48c6 | 1620 | |
4f43d0e7 | 1621 | int SSL_shutdown(SSL *s) |
0f113f3e MC |
1622 | { |
1623 | /* | |
1624 | * Note that this function behaves differently from what one might | |
1625 | * expect. Return values are 0 for no success (yet), 1 for success; but | |
1626 | * calling it once is usually not enough, even if blocking I/O is used | |
1627 | * (see ssl3_shutdown). | |
1628 | */ | |
1629 | ||
c4c32155 | 1630 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1631 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); |
1632 | return -1; | |
1633 | } | |
1634 | ||
64f9f406 MC |
1635 | if (!SSL_in_init(s)) { |
1636 | if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { | |
1637 | struct ssl_async_args args; | |
ec447924 | 1638 | |
64f9f406 MC |
1639 | args.s = s; |
1640 | args.type = OTHERFUNC; | |
1641 | args.f.func_other = s->method->ssl_shutdown; | |
ec447924 | 1642 | |
64f9f406 MC |
1643 | return ssl_start_async_job(s, &args, ssl_io_intern); |
1644 | } else { | |
1645 | return s->method->ssl_shutdown(s); | |
1646 | } | |
ec447924 | 1647 | } else { |
64f9f406 MC |
1648 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT); |
1649 | return -1; | |
ec447924 | 1650 | } |
0f113f3e | 1651 | } |
d02b48c6 | 1652 | |
4f43d0e7 | 1653 | int SSL_renegotiate(SSL *s) |
0f113f3e MC |
1654 | { |
1655 | if (s->renegotiate == 0) | |
1656 | s->renegotiate = 1; | |
44959ee4 | 1657 | |
0f113f3e | 1658 | s->new_session = 1; |
44959ee4 | 1659 | |
0f113f3e MC |
1660 | return (s->method->ssl_renegotiate(s)); |
1661 | } | |
d02b48c6 | 1662 | |
44959ee4 | 1663 | int SSL_renegotiate_abbreviated(SSL *s) |
0f113f3e MC |
1664 | { |
1665 | if (s->renegotiate == 0) | |
1666 | s->renegotiate = 1; | |
c519e89f | 1667 | |
0f113f3e | 1668 | s->new_session = 0; |
c519e89f | 1669 | |
0f113f3e MC |
1670 | return (s->method->ssl_renegotiate(s)); |
1671 | } | |
44959ee4 | 1672 | |
6b0e9fac | 1673 | int SSL_renegotiate_pending(SSL *s) |
0f113f3e MC |
1674 | { |
1675 | /* | |
1676 | * becomes true when negotiation is requested; false again once a | |
1677 | * handshake has finished | |
1678 | */ | |
1679 | return (s->renegotiate != 0); | |
1680 | } | |
1681 | ||
1682 | long SSL_ctrl(SSL *s, int cmd, long larg, void *parg) | |
1683 | { | |
1684 | long l; | |
1685 | ||
1686 | switch (cmd) { | |
1687 | case SSL_CTRL_GET_READ_AHEAD: | |
52e1d7b1 | 1688 | return (RECORD_LAYER_get_read_ahead(&s->rlayer)); |
0f113f3e | 1689 | case SSL_CTRL_SET_READ_AHEAD: |
52e1d7b1 MC |
1690 | l = RECORD_LAYER_get_read_ahead(&s->rlayer); |
1691 | RECORD_LAYER_set_read_ahead(&s->rlayer, larg); | |
0f113f3e MC |
1692 | return (l); |
1693 | ||
1694 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
1695 | s->msg_callback_arg = parg; | |
1696 | return 1; | |
1697 | ||
0f113f3e MC |
1698 | case SSL_CTRL_MODE: |
1699 | return (s->mode |= larg); | |
1700 | case SSL_CTRL_CLEAR_MODE: | |
1701 | return (s->mode &= ~larg); | |
1702 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
1703 | return (s->max_cert_list); | |
1704 | case SSL_CTRL_SET_MAX_CERT_LIST: | |
1705 | l = s->max_cert_list; | |
1706 | s->max_cert_list = larg; | |
1707 | return (l); | |
1708 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
1709 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
1710 | return 0; | |
1711 | s->max_send_fragment = larg; | |
d102d9df MC |
1712 | if (s->max_send_fragment < s->split_send_fragment) |
1713 | s->split_send_fragment = s->max_send_fragment; | |
1714 | return 1; | |
1715 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: | |
6b99e875 | 1716 | if ((unsigned int)larg > s->max_send_fragment || larg == 0) |
d102d9df MC |
1717 | return 0; |
1718 | s->split_send_fragment = larg; | |
0f113f3e | 1719 | return 1; |
d102d9df MC |
1720 | case SSL_CTRL_SET_MAX_PIPELINES: |
1721 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
1722 | return 0; | |
1723 | s->max_pipelines = larg; | |
94777c9c MC |
1724 | if (larg > 1) |
1725 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
07077415 | 1726 | return 1; |
0f113f3e MC |
1727 | case SSL_CTRL_GET_RI_SUPPORT: |
1728 | if (s->s3) | |
1729 | return s->s3->send_connection_binding; | |
1730 | else | |
1731 | return 0; | |
1732 | case SSL_CTRL_CERT_FLAGS: | |
1733 | return (s->cert->cert_flags |= larg); | |
1734 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
1735 | return (s->cert->cert_flags &= ~larg); | |
1736 | ||
1737 | case SSL_CTRL_GET_RAW_CIPHERLIST: | |
1738 | if (parg) { | |
76106e60 | 1739 | if (s->s3->tmp.ciphers_raw == NULL) |
0f113f3e | 1740 | return 0; |
76106e60 DSH |
1741 | *(unsigned char **)parg = s->s3->tmp.ciphers_raw; |
1742 | return (int)s->s3->tmp.ciphers_rawlen; | |
e9fa092e EK |
1743 | } else { |
1744 | return TLS_CIPHER_LEN; | |
1745 | } | |
c5364614 | 1746 | case SSL_CTRL_GET_EXTMS_SUPPORT: |
024f543c | 1747 | if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s)) |
156a8722 DSH |
1748 | return -1; |
1749 | if (s->session->flags & SSL_SESS_FLAG_EXTMS) | |
c5364614 DSH |
1750 | return 1; |
1751 | else | |
1752 | return 0; | |
7946ab33 | 1753 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
4fa52141 VD |
1754 | return ssl_set_version_bound(s->ctx->method->version, (int)larg, |
1755 | &s->min_proto_version); | |
7946ab33 | 1756 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
4fa52141 VD |
1757 | return ssl_set_version_bound(s->ctx->method->version, (int)larg, |
1758 | &s->max_proto_version); | |
0f113f3e MC |
1759 | default: |
1760 | return (s->method->ssl_ctrl(s, cmd, larg, parg)); | |
1761 | } | |
1762 | } | |
1763 | ||
1764 | long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
1765 | { | |
1766 | switch (cmd) { | |
1767 | case SSL_CTRL_SET_MSG_CALLBACK: | |
1768 | s->msg_callback = (void (*) | |
1769 | (int write_p, int version, int content_type, | |
1770 | const void *buf, size_t len, SSL *ssl, | |
1771 | void *arg))(fp); | |
1772 | return 1; | |
1773 | ||
1774 | default: | |
1775 | return (s->method->ssl_callback_ctrl(s, cmd, fp)); | |
1776 | } | |
1777 | } | |
d3442bc7 | 1778 | |
3c1d6bbc | 1779 | LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx) |
0f113f3e MC |
1780 | { |
1781 | return ctx->sessions; | |
1782 | } | |
1783 | ||
1784 | long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
1785 | { | |
1786 | long l; | |
1787 | /* For some cases with ctx == NULL perform syntax checks */ | |
1788 | if (ctx == NULL) { | |
1789 | switch (cmd) { | |
14536c8c | 1790 | #ifndef OPENSSL_NO_EC |
0f113f3e MC |
1791 | case SSL_CTRL_SET_CURVES_LIST: |
1792 | return tls1_set_curves_list(NULL, NULL, parg); | |
1793 | #endif | |
1794 | case SSL_CTRL_SET_SIGALGS_LIST: | |
1795 | case SSL_CTRL_SET_CLIENT_SIGALGS_LIST: | |
1796 | return tls1_set_sigalgs_list(NULL, parg, 0); | |
1797 | default: | |
1798 | return 0; | |
1799 | } | |
1800 | } | |
1801 | ||
1802 | switch (cmd) { | |
1803 | case SSL_CTRL_GET_READ_AHEAD: | |
1804 | return (ctx->read_ahead); | |
1805 | case SSL_CTRL_SET_READ_AHEAD: | |
1806 | l = ctx->read_ahead; | |
1807 | ctx->read_ahead = larg; | |
1808 | return (l); | |
1809 | ||
1810 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
1811 | ctx->msg_callback_arg = parg; | |
1812 | return 1; | |
1813 | ||
1814 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
1815 | return (ctx->max_cert_list); | |
1816 | case SSL_CTRL_SET_MAX_CERT_LIST: | |
1817 | l = ctx->max_cert_list; | |
1818 | ctx->max_cert_list = larg; | |
1819 | return (l); | |
1820 | ||
1821 | case SSL_CTRL_SET_SESS_CACHE_SIZE: | |
1822 | l = ctx->session_cache_size; | |
1823 | ctx->session_cache_size = larg; | |
1824 | return (l); | |
1825 | case SSL_CTRL_GET_SESS_CACHE_SIZE: | |
1826 | return (ctx->session_cache_size); | |
1827 | case SSL_CTRL_SET_SESS_CACHE_MODE: | |
1828 | l = ctx->session_cache_mode; | |
1829 | ctx->session_cache_mode = larg; | |
1830 | return (l); | |
1831 | case SSL_CTRL_GET_SESS_CACHE_MODE: | |
1832 | return (ctx->session_cache_mode); | |
1833 | ||
1834 | case SSL_CTRL_SESS_NUMBER: | |
1835 | return (lh_SSL_SESSION_num_items(ctx->sessions)); | |
1836 | case SSL_CTRL_SESS_CONNECT: | |
1837 | return (ctx->stats.sess_connect); | |
1838 | case SSL_CTRL_SESS_CONNECT_GOOD: | |
1839 | return (ctx->stats.sess_connect_good); | |
1840 | case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: | |
1841 | return (ctx->stats.sess_connect_renegotiate); | |
1842 | case SSL_CTRL_SESS_ACCEPT: | |
1843 | return (ctx->stats.sess_accept); | |
1844 | case SSL_CTRL_SESS_ACCEPT_GOOD: | |
1845 | return (ctx->stats.sess_accept_good); | |
1846 | case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: | |
1847 | return (ctx->stats.sess_accept_renegotiate); | |
1848 | case SSL_CTRL_SESS_HIT: | |
1849 | return (ctx->stats.sess_hit); | |
1850 | case SSL_CTRL_SESS_CB_HIT: | |
1851 | return (ctx->stats.sess_cb_hit); | |
1852 | case SSL_CTRL_SESS_MISSES: | |
1853 | return (ctx->stats.sess_miss); | |
1854 | case SSL_CTRL_SESS_TIMEOUTS: | |
1855 | return (ctx->stats.sess_timeout); | |
1856 | case SSL_CTRL_SESS_CACHE_FULL: | |
1857 | return (ctx->stats.sess_cache_full); | |
0f113f3e MC |
1858 | case SSL_CTRL_MODE: |
1859 | return (ctx->mode |= larg); | |
1860 | case SSL_CTRL_CLEAR_MODE: | |
1861 | return (ctx->mode &= ~larg); | |
1862 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
1863 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
1864 | return 0; | |
1865 | ctx->max_send_fragment = larg; | |
d102d9df MC |
1866 | if (ctx->max_send_fragment < ctx->split_send_fragment) |
1867 | ctx->split_send_fragment = ctx->split_send_fragment; | |
0f113f3e | 1868 | return 1; |
d102d9df | 1869 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: |
6b99e875 | 1870 | if ((unsigned int)larg > ctx->max_send_fragment || larg == 0) |
d102d9df MC |
1871 | return 0; |
1872 | ctx->split_send_fragment = larg; | |
1873 | return 1; | |
1874 | case SSL_CTRL_SET_MAX_PIPELINES: | |
1875 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
1876 | return 0; | |
1877 | ctx->max_pipelines = larg; | |
07077415 | 1878 | return 1; |
0f113f3e MC |
1879 | case SSL_CTRL_CERT_FLAGS: |
1880 | return (ctx->cert->cert_flags |= larg); | |
1881 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
1882 | return (ctx->cert->cert_flags &= ~larg); | |
7946ab33 | 1883 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
4fa52141 VD |
1884 | return ssl_set_version_bound(ctx->method->version, (int)larg, |
1885 | &ctx->min_proto_version); | |
7946ab33 | 1886 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
4fa52141 VD |
1887 | return ssl_set_version_bound(ctx->method->version, (int)larg, |
1888 | &ctx->max_proto_version); | |
0f113f3e MC |
1889 | default: |
1890 | return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg)); | |
1891 | } | |
1892 | } | |
1893 | ||
1894 | long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
1895 | { | |
1896 | switch (cmd) { | |
1897 | case SSL_CTRL_SET_MSG_CALLBACK: | |
1898 | ctx->msg_callback = (void (*) | |
1899 | (int write_p, int version, int content_type, | |
1900 | const void *buf, size_t len, SSL *ssl, | |
1901 | void *arg))(fp); | |
1902 | return 1; | |
1903 | ||
1904 | default: | |
1905 | return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp)); | |
1906 | } | |
1907 | } | |
d3442bc7 | 1908 | |
ccd86b68 | 1909 | int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) |
0f113f3e | 1910 | { |
90d9e49a DSH |
1911 | if (a->id > b->id) |
1912 | return 1; | |
1913 | if (a->id < b->id) | |
1914 | return -1; | |
1915 | return 0; | |
0f113f3e MC |
1916 | } |
1917 | ||
1918 | int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, | |
1919 | const SSL_CIPHER *const *bp) | |
1920 | { | |
90d9e49a DSH |
1921 | if ((*ap)->id > (*bp)->id) |
1922 | return 1; | |
1923 | if ((*ap)->id < (*bp)->id) | |
1924 | return -1; | |
1925 | return 0; | |
0f113f3e | 1926 | } |
d02b48c6 | 1927 | |
4f43d0e7 | 1928 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 1929 | * preference */ |
0821bcd4 | 1930 | STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) |
0f113f3e MC |
1931 | { |
1932 | if (s != NULL) { | |
1933 | if (s->cipher_list != NULL) { | |
1934 | return (s->cipher_list); | |
1935 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { | |
1936 | return (s->ctx->cipher_list); | |
1937 | } | |
1938 | } | |
1939 | return (NULL); | |
1940 | } | |
1941 | ||
831eef2c NM |
1942 | STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s) |
1943 | { | |
1944 | if ((s == NULL) || (s->session == NULL) || !s->server) | |
1945 | return NULL; | |
1946 | return s->session->ciphers; | |
1947 | } | |
1948 | ||
8b8e5bed | 1949 | STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s) |
0f113f3e MC |
1950 | { |
1951 | STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers; | |
1952 | int i; | |
1953 | ciphers = SSL_get_ciphers(s); | |
1954 | if (!ciphers) | |
1955 | return NULL; | |
1956 | ssl_set_client_disabled(s); | |
1957 | for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { | |
1958 | const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i); | |
1959 | if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) { | |
1960 | if (!sk) | |
1961 | sk = sk_SSL_CIPHER_new_null(); | |
1962 | if (!sk) | |
1963 | return NULL; | |
1964 | if (!sk_SSL_CIPHER_push(sk, c)) { | |
1965 | sk_SSL_CIPHER_free(sk); | |
1966 | return NULL; | |
1967 | } | |
1968 | } | |
1969 | } | |
1970 | return sk; | |
1971 | } | |
8b8e5bed | 1972 | |
4f43d0e7 | 1973 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 1974 | * algorithm id */ |
f73e07cf | 1975 | STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) |
0f113f3e MC |
1976 | { |
1977 | if (s != NULL) { | |
1978 | if (s->cipher_list_by_id != NULL) { | |
1979 | return (s->cipher_list_by_id); | |
1980 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) { | |
1981 | return (s->ctx->cipher_list_by_id); | |
1982 | } | |
1983 | } | |
1984 | return (NULL); | |
1985 | } | |
d02b48c6 | 1986 | |
4f43d0e7 | 1987 | /** The old interface to get the same thing as SSL_get_ciphers() */ |
0f113f3e MC |
1988 | const char *SSL_get_cipher_list(const SSL *s, int n) |
1989 | { | |
4a640fb6 | 1990 | const SSL_CIPHER *c; |
0f113f3e MC |
1991 | STACK_OF(SSL_CIPHER) *sk; |
1992 | ||
1993 | if (s == NULL) | |
1994 | return (NULL); | |
1995 | sk = SSL_get_ciphers(s); | |
1996 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) | |
1997 | return (NULL); | |
1998 | c = sk_SSL_CIPHER_value(sk, n); | |
1999 | if (c == NULL) | |
2000 | return (NULL); | |
2001 | return (c->name); | |
2002 | } | |
d02b48c6 | 2003 | |
25f923dd | 2004 | /** specify the ciphers to be used by default by the SSL_CTX */ |
018e57c7 | 2005 | int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) |
0f113f3e MC |
2006 | { |
2007 | STACK_OF(SSL_CIPHER) *sk; | |
2008 | ||
2009 | sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, | |
2010 | &ctx->cipher_list_by_id, str, ctx->cert); | |
2011 | /* | |
2012 | * ssl_create_cipher_list may return an empty stack if it was unable to | |
2013 | * find a cipher matching the given rule string (for example if the rule | |
2014 | * string specifies a cipher which has been disabled). This is not an | |
2015 | * error as far as ssl_create_cipher_list is concerned, and hence | |
2016 | * ctx->cipher_list and ctx->cipher_list_by_id has been updated. | |
2017 | */ | |
2018 | if (sk == NULL) | |
2019 | return 0; | |
2020 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2021 | SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2022 | return 0; | |
2023 | } | |
2024 | return 1; | |
2025 | } | |
d02b48c6 | 2026 | |
4f43d0e7 | 2027 | /** specify the ciphers to be used by the SSL */ |
0f113f3e MC |
2028 | int SSL_set_cipher_list(SSL *s, const char *str) |
2029 | { | |
2030 | STACK_OF(SSL_CIPHER) *sk; | |
2031 | ||
2032 | sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, | |
2033 | &s->cipher_list_by_id, str, s->cert); | |
2034 | /* see comment in SSL_CTX_set_cipher_list */ | |
2035 | if (sk == NULL) | |
2036 | return 0; | |
2037 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2038 | SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2039 | return 0; | |
2040 | } | |
2041 | return 1; | |
2042 | } | |
d02b48c6 | 2043 | |
0f113f3e MC |
2044 | char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len) |
2045 | { | |
2046 | char *p; | |
2047 | STACK_OF(SSL_CIPHER) *sk; | |
4a640fb6 | 2048 | const SSL_CIPHER *c; |
0f113f3e MC |
2049 | int i; |
2050 | ||
2051 | if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2)) | |
2052 | return (NULL); | |
2053 | ||
2054 | p = buf; | |
2055 | sk = s->session->ciphers; | |
2056 | ||
2057 | if (sk_SSL_CIPHER_num(sk) == 0) | |
2058 | return NULL; | |
2059 | ||
2060 | for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { | |
2061 | int n; | |
2062 | ||
2063 | c = sk_SSL_CIPHER_value(sk, i); | |
2064 | n = strlen(c->name); | |
2065 | if (n + 1 > len) { | |
2066 | if (p != buf) | |
2067 | --p; | |
2068 | *p = '\0'; | |
2069 | return buf; | |
2070 | } | |
a89c9a0d | 2071 | memcpy(p, c->name, n + 1); |
0f113f3e MC |
2072 | p += n; |
2073 | *(p++) = ':'; | |
2074 | len -= n + 1; | |
2075 | } | |
2076 | p[-1] = '\0'; | |
2077 | return (buf); | |
2078 | } | |
2079 | ||
52b8dad8 | 2080 | /** return a servername extension value if provided in Client Hello, or NULL. |
f1fd4544 | 2081 | * So far, only host_name types are defined (RFC 3546). |
ed3883d2 BM |
2082 | */ |
2083 | ||
f1fd4544 | 2084 | const char *SSL_get_servername(const SSL *s, const int type) |
0f113f3e MC |
2085 | { |
2086 | if (type != TLSEXT_NAMETYPE_host_name) | |
2087 | return NULL; | |
a13c20f6 | 2088 | |
0f113f3e MC |
2089 | return s->session && !s->tlsext_hostname ? |
2090 | s->session->tlsext_hostname : s->tlsext_hostname; | |
2091 | } | |
ed3883d2 | 2092 | |
f1fd4544 | 2093 | int SSL_get_servername_type(const SSL *s) |
0f113f3e MC |
2094 | { |
2095 | if (s->session | |
2096 | && (!s->tlsext_hostname ? s->session-> | |
2097 | tlsext_hostname : s->tlsext_hostname)) | |
2098 | return TLSEXT_NAMETYPE_host_name; | |
2099 | return -1; | |
2100 | } | |
ee2ffc27 | 2101 | |
0f113f3e MC |
2102 | /* |
2103 | * SSL_select_next_proto implements the standard protocol selection. It is | |
ee2ffc27 | 2104 | * expected that this function is called from the callback set by |
0f113f3e MC |
2105 | * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a |
2106 | * vector of 8-bit, length prefixed byte strings. The length byte itself is | |
2107 | * not included in the length. A byte string of length 0 is invalid. No byte | |
2108 | * string may be truncated. The current, but experimental algorithm for | |
2109 | * selecting the protocol is: 1) If the server doesn't support NPN then this | |
2110 | * is indicated to the callback. In this case, the client application has to | |
2111 | * abort the connection or have a default application level protocol. 2) If | |
2112 | * the server supports NPN, but advertises an empty list then the client | |
2113 | * selects the first protcol in its list, but indicates via the API that this | |
2114 | * fallback case was enacted. 3) Otherwise, the client finds the first | |
2115 | * protocol in the server's list that it supports and selects this protocol. | |
2116 | * This is because it's assumed that the server has better information about | |
2117 | * which protocol a client should use. 4) If the client doesn't support any | |
2118 | * of the server's advertised protocols, then this is treated the same as | |
2119 | * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was | |
2120 | * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. | |
ee2ffc27 | 2121 | */ |
0f113f3e MC |
2122 | int SSL_select_next_proto(unsigned char **out, unsigned char *outlen, |
2123 | const unsigned char *server, | |
2124 | unsigned int server_len, | |
2125 | const unsigned char *client, | |
2126 | unsigned int client_len) | |
2127 | { | |
2128 | unsigned int i, j; | |
2129 | const unsigned char *result; | |
2130 | int status = OPENSSL_NPN_UNSUPPORTED; | |
2131 | ||
2132 | /* | |
2133 | * For each protocol in server preference order, see if we support it. | |
2134 | */ | |
2135 | for (i = 0; i < server_len;) { | |
2136 | for (j = 0; j < client_len;) { | |
2137 | if (server[i] == client[j] && | |
2138 | memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) { | |
2139 | /* We found a match */ | |
2140 | result = &server[i]; | |
2141 | status = OPENSSL_NPN_NEGOTIATED; | |
2142 | goto found; | |
2143 | } | |
2144 | j += client[j]; | |
2145 | j++; | |
2146 | } | |
2147 | i += server[i]; | |
2148 | i++; | |
2149 | } | |
2150 | ||
2151 | /* There's no overlap between our protocols and the server's list. */ | |
2152 | result = client; | |
2153 | status = OPENSSL_NPN_NO_OVERLAP; | |
2154 | ||
2155 | found: | |
2156 | *out = (unsigned char *)result + 1; | |
2157 | *outlen = result[0]; | |
2158 | return status; | |
2159 | } | |
ee2ffc27 | 2160 | |
e481f9b9 | 2161 | #ifndef OPENSSL_NO_NEXTPROTONEG |
0f113f3e MC |
2162 | /* |
2163 | * SSL_get0_next_proto_negotiated sets *data and *len to point to the | |
2164 | * client's requested protocol for this connection and returns 0. If the | |
2165 | * client didn't request any protocol, then *data is set to NULL. Note that | |
2166 | * the client can request any protocol it chooses. The value returned from | |
2167 | * this function need not be a member of the list of supported protocols | |
ee2ffc27 BL |
2168 | * provided by the callback. |
2169 | */ | |
0f113f3e MC |
2170 | void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, |
2171 | unsigned *len) | |
2172 | { | |
2173 | *data = s->next_proto_negotiated; | |
2174 | if (!*data) { | |
2175 | *len = 0; | |
2176 | } else { | |
2177 | *len = s->next_proto_negotiated_len; | |
2178 | } | |
2179 | } | |
2180 | ||
2181 | /* | |
2182 | * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when | |
2183 | * a TLS server needs a list of supported protocols for Next Protocol | |
2184 | * Negotiation. The returned list must be in wire format. The list is | |
2185 | * returned by setting |out| to point to it and |outlen| to its length. This | |
2186 | * memory will not be modified, but one should assume that the SSL* keeps a | |
2187 | * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it | |
2188 | * wishes to advertise. Otherwise, no such extension will be included in the | |
2189 | * ServerHello. | |
2190 | */ | |
2191 | void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, | |
2192 | int (*cb) (SSL *ssl, | |
2193 | const unsigned char | |
2194 | **out, | |
2195 | unsigned int *outlen, | |
2196 | void *arg), void *arg) | |
2197 | { | |
2198 | ctx->next_protos_advertised_cb = cb; | |
2199 | ctx->next_protos_advertised_cb_arg = arg; | |
2200 | } | |
2201 | ||
2202 | /* | |
2203 | * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a | |
ee2ffc27 BL |
2204 | * client needs to select a protocol from the server's provided list. |out| |
2205 | * must be set to point to the selected protocol (which may be within |in|). | |
0f113f3e MC |
2206 | * The length of the protocol name must be written into |outlen|. The |
2207 | * server's advertised protocols are provided in |in| and |inlen|. The | |
2208 | * callback can assume that |in| is syntactically valid. The client must | |
2209 | * select a protocol. It is fatal to the connection if this callback returns | |
2210 | * a value other than SSL_TLSEXT_ERR_OK. | |
ee2ffc27 | 2211 | */ |
0f113f3e MC |
2212 | void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, |
2213 | int (*cb) (SSL *s, unsigned char **out, | |
2214 | unsigned char *outlen, | |
2215 | const unsigned char *in, | |
2216 | unsigned int inlen, | |
2217 | void *arg), void *arg) | |
2218 | { | |
2219 | ctx->next_proto_select_cb = cb; | |
2220 | ctx->next_proto_select_cb_arg = arg; | |
2221 | } | |
e481f9b9 | 2222 | #endif |
a398f821 | 2223 | |
0f113f3e MC |
2224 | /* |
2225 | * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|. | |
6f017a8f | 2226 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2227 | * length-prefixed strings). Returns 0 on success. |
2228 | */ | |
2229 | int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, | |
817cd0d5 | 2230 | unsigned int protos_len) |
0f113f3e | 2231 | { |
25aaa98a | 2232 | OPENSSL_free(ctx->alpn_client_proto_list); |
817cd0d5 | 2233 | ctx->alpn_client_proto_list = OPENSSL_memdup(protos, protos_len); |
72e9be3d RS |
2234 | if (ctx->alpn_client_proto_list == NULL) { |
2235 | SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); | |
0f113f3e | 2236 | return 1; |
72e9be3d | 2237 | } |
0f113f3e MC |
2238 | ctx->alpn_client_proto_list_len = protos_len; |
2239 | ||
2240 | return 0; | |
2241 | } | |
2242 | ||
2243 | /* | |
2244 | * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|. | |
6f017a8f | 2245 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2246 | * length-prefixed strings). Returns 0 on success. |
2247 | */ | |
2248 | int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, | |
817cd0d5 | 2249 | unsigned int protos_len) |
0f113f3e | 2250 | { |
25aaa98a | 2251 | OPENSSL_free(ssl->alpn_client_proto_list); |
817cd0d5 | 2252 | ssl->alpn_client_proto_list = OPENSSL_memdup(protos, protos_len); |
72e9be3d RS |
2253 | if (ssl->alpn_client_proto_list == NULL) { |
2254 | SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); | |
0f113f3e | 2255 | return 1; |
72e9be3d | 2256 | } |
0f113f3e MC |
2257 | ssl->alpn_client_proto_list_len = protos_len; |
2258 | ||
2259 | return 0; | |
2260 | } | |
2261 | ||
2262 | /* | |
2263 | * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is | |
2264 | * called during ClientHello processing in order to select an ALPN protocol | |
2265 | * from the client's list of offered protocols. | |
2266 | */ | |
2267 | void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx, | |
2268 | int (*cb) (SSL *ssl, | |
2269 | const unsigned char **out, | |
2270 | unsigned char *outlen, | |
2271 | const unsigned char *in, | |
2272 | unsigned int inlen, | |
2273 | void *arg), void *arg) | |
2274 | { | |
2275 | ctx->alpn_select_cb = cb; | |
2276 | ctx->alpn_select_cb_arg = arg; | |
2277 | } | |
2278 | ||
2279 | /* | |
2280 | * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from | |
2281 | * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name | |
2282 | * (not including the leading length-prefix byte). If the server didn't | |
2283 | * respond with a negotiated protocol then |*len| will be zero. | |
2284 | */ | |
6f017a8f | 2285 | void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, |
817cd0d5 | 2286 | unsigned int *len) |
0f113f3e MC |
2287 | { |
2288 | *data = NULL; | |
2289 | if (ssl->s3) | |
2290 | *data = ssl->s3->alpn_selected; | |
2291 | if (*data == NULL) | |
2292 | *len = 0; | |
2293 | else | |
2294 | *len = ssl->s3->alpn_selected_len; | |
2295 | } | |
2296 | ||
f1fd4544 | 2297 | |
74b4b494 | 2298 | int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, |
0f113f3e MC |
2299 | const char *label, size_t llen, |
2300 | const unsigned char *p, size_t plen, | |
2301 | int use_context) | |
2302 | { | |
2303 | if (s->version < TLS1_VERSION) | |
2304 | return -1; | |
e0af0405 | 2305 | |
0f113f3e MC |
2306 | return s->method->ssl3_enc->export_keying_material(s, out, olen, label, |
2307 | llen, p, plen, | |
2308 | use_context); | |
2309 | } | |
e0af0405 | 2310 | |
3c1d6bbc | 2311 | static unsigned long ssl_session_hash(const SSL_SESSION *a) |
0f113f3e MC |
2312 | { |
2313 | unsigned long l; | |
2314 | ||
2315 | l = (unsigned long) | |
2316 | ((unsigned int)a->session_id[0]) | | |
2317 | ((unsigned int)a->session_id[1] << 8L) | | |
2318 | ((unsigned long)a->session_id[2] << 16L) | | |
2319 | ((unsigned long)a->session_id[3] << 24L); | |
2320 | return (l); | |
2321 | } | |
2322 | ||
2323 | /* | |
2324 | * NB: If this function (or indeed the hash function which uses a sort of | |
dc644fe2 | 2325 | * coarser function than this one) is changed, ensure |
0f113f3e MC |
2326 | * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on |
2327 | * being able to construct an SSL_SESSION that will collide with any existing | |
2328 | * session with a matching session ID. | |
2329 | */ | |
2330 | static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) | |
2331 | { | |
2332 | if (a->ssl_version != b->ssl_version) | |
2333 | return (1); | |
2334 | if (a->session_id_length != b->session_id_length) | |
2335 | return (1); | |
2336 | return (memcmp(a->session_id, b->session_id, a->session_id_length)); | |
2337 | } | |
2338 | ||
2339 | /* | |
2340 | * These wrapper functions should remain rather than redeclaring | |
d0fa136c | 2341 | * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each |
0f113f3e MC |
2342 | * variable. The reason is that the functions aren't static, they're exposed |
2343 | * via ssl.h. | |
2344 | */ | |
97b17195 | 2345 | |
4ebb342f | 2346 | SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth) |
0f113f3e MC |
2347 | { |
2348 | SSL_CTX *ret = NULL; | |
2349 | ||
2350 | if (meth == NULL) { | |
2351 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED); | |
2352 | return (NULL); | |
2353 | } | |
2354 | ||
0fc32b07 MC |
2355 | if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL)) |
2356 | return NULL; | |
7fa792d1 | 2357 | |
0f113f3e | 2358 | if (FIPS_mode() && (meth->version < TLS1_VERSION)) { |
4fa52141 | 2359 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_AT_LEAST_TLS_1_0_NEEDED_IN_FIPS_MODE); |
0f113f3e MC |
2360 | return NULL; |
2361 | } | |
2362 | ||
2363 | if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { | |
2364 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); | |
2365 | goto err; | |
2366 | } | |
b51bce94 | 2367 | ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e MC |
2368 | if (ret == NULL) |
2369 | goto err; | |
2370 | ||
0f113f3e | 2371 | ret->method = meth; |
7946ab33 KR |
2372 | ret->min_proto_version = 0; |
2373 | ret->max_proto_version = 0; | |
0f113f3e MC |
2374 | ret->session_cache_mode = SSL_SESS_CACHE_SERVER; |
2375 | ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; | |
64b25758 | 2376 | /* We take the system default. */ |
0f113f3e | 2377 | ret->session_timeout = meth->get_timeout(); |
0f113f3e | 2378 | ret->references = 1; |
16203f7b AG |
2379 | ret->lock = CRYPTO_THREAD_lock_new(); |
2380 | if (ret->lock == NULL) { | |
2381 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2382 | OPENSSL_free(ret); | |
2383 | return NULL; | |
2384 | } | |
0f113f3e | 2385 | ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; |
0f113f3e | 2386 | ret->verify_mode = SSL_VERIFY_NONE; |
0f113f3e MC |
2387 | if ((ret->cert = ssl_cert_new()) == NULL) |
2388 | goto err; | |
2389 | ||
62d0577e | 2390 | ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp); |
0f113f3e MC |
2391 | if (ret->sessions == NULL) |
2392 | goto err; | |
2393 | ret->cert_store = X509_STORE_new(); | |
2394 | if (ret->cert_store == NULL) | |
2395 | goto err; | |
ed29e82a RP |
2396 | #ifndef OPENSSL_NO_CT |
2397 | ret->ctlog_store = CTLOG_STORE_new(); | |
2398 | if (ret->ctlog_store == NULL) | |
2399 | goto err; | |
2400 | #endif | |
61986d32 | 2401 | if (!ssl_create_cipher_list(ret->method, |
0f113f3e | 2402 | &ret->cipher_list, &ret->cipher_list_by_id, |
69f68237 MC |
2403 | SSL_DEFAULT_CIPHER_LIST, ret->cert) |
2404 | || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { | |
0f113f3e MC |
2405 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS); |
2406 | goto err2; | |
2407 | } | |
2408 | ||
2409 | ret->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 2410 | if (ret->param == NULL) |
0f113f3e MC |
2411 | goto err; |
2412 | ||
2413 | if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) { | |
2414 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); | |
2415 | goto err2; | |
2416 | } | |
2417 | if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) { | |
2418 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); | |
2419 | goto err2; | |
2420 | } | |
2421 | ||
2422 | if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL) | |
2423 | goto err; | |
2424 | ||
2425 | CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); | |
2426 | ||
0f113f3e MC |
2427 | /* No compression for DTLS */ |
2428 | if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)) | |
2429 | ret->comp_methods = SSL_COMP_get_compression_methods(); | |
2430 | ||
2431 | ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; | |
d102d9df | 2432 | ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; |
566dda07 | 2433 | |
0f113f3e | 2434 | /* Setup RFC4507 ticket keys */ |
266483d2 | 2435 | if ((RAND_bytes(ret->tlsext_tick_key_name, 16) <= 0) |
0f113f3e MC |
2436 | || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0) |
2437 | || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0)) | |
2438 | ret->options |= SSL_OP_NO_TICKET; | |
6434abbf | 2439 | |
edc032b5 | 2440 | #ifndef OPENSSL_NO_SRP |
61986d32 | 2441 | if (!SSL_CTX_SRP_CTX_init(ret)) |
69f68237 | 2442 | goto err; |
edc032b5 | 2443 | #endif |
4db9677b | 2444 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e MC |
2445 | # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO |
2446 | # define eng_strx(x) #x | |
2447 | # define eng_str(x) eng_strx(x) | |
2448 | /* Use specific client engine automatically... ignore errors */ | |
2449 | { | |
2450 | ENGINE *eng; | |
2451 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2452 | if (!eng) { | |
2453 | ERR_clear_error(); | |
2454 | ENGINE_load_builtin_engines(); | |
2455 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2456 | } | |
2457 | if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) | |
2458 | ERR_clear_error(); | |
2459 | } | |
2460 | # endif | |
2461 | #endif | |
2462 | /* | |
2463 | * Default is to connect to non-RI servers. When RI is more widely | |
2464 | * deployed might change this. | |
2465 | */ | |
2466 | ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; | |
dc5744cb EK |
2467 | /* |
2468 | * Disable compression by default to prevent CRIME. Applications can | |
2469 | * re-enable compression by configuring | |
2470 | * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION); | |
2471 | * or by using the SSL_CONF library. | |
2472 | */ | |
2473 | ret->options |= SSL_OP_NO_COMPRESSION; | |
0f113f3e | 2474 | |
16203f7b | 2475 | return ret; |
0f113f3e MC |
2476 | err: |
2477 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2478 | err2: | |
e0e920b1 | 2479 | SSL_CTX_free(ret); |
16203f7b | 2480 | return NULL; |
0f113f3e | 2481 | } |
d02b48c6 | 2482 | |
a18a31e4 MC |
2483 | void SSL_CTX_up_ref(SSL_CTX *ctx) |
2484 | { | |
16203f7b AG |
2485 | int i; |
2486 | CRYPTO_atomic_add(&ctx->references, 1, &i, ctx->lock); | |
a18a31e4 MC |
2487 | } |
2488 | ||
4f43d0e7 | 2489 | void SSL_CTX_free(SSL_CTX *a) |
0f113f3e MC |
2490 | { |
2491 | int i; | |
d02b48c6 | 2492 | |
0f113f3e MC |
2493 | if (a == NULL) |
2494 | return; | |
d02b48c6 | 2495 | |
16203f7b | 2496 | CRYPTO_atomic_add(&a->references, -1, &i, a->lock); |
f3f1cf84 | 2497 | REF_PRINT_COUNT("SSL_CTX", a); |
0f113f3e MC |
2498 | if (i > 0) |
2499 | return; | |
f3f1cf84 | 2500 | REF_ASSERT_ISNT(i < 0); |
0f113f3e | 2501 | |
222561fe | 2502 | X509_VERIFY_PARAM_free(a->param); |
919ba009 | 2503 | dane_ctx_final(&a->dane); |
0f113f3e MC |
2504 | |
2505 | /* | |
2506 | * Free internal session cache. However: the remove_cb() may reference | |
2507 | * the ex_data of SSL_CTX, thus the ex_data store can only be removed | |
2508 | * after the sessions were flushed. | |
2509 | * As the ex_data handling routines might also touch the session cache, | |
2510 | * the most secure solution seems to be: empty (flush) the cache, then | |
2511 | * free ex_data, then finally free the cache. | |
2512 | * (See ticket [openssl.org #212].) | |
2513 | */ | |
2514 | if (a->sessions != NULL) | |
2515 | SSL_CTX_flush_sessions(a, 0); | |
2516 | ||
2517 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); | |
25aaa98a | 2518 | lh_SSL_SESSION_free(a->sessions); |
222561fe | 2519 | X509_STORE_free(a->cert_store); |
ed29e82a RP |
2520 | #ifndef OPENSSL_NO_CT |
2521 | CTLOG_STORE_free(a->ctlog_store); | |
2522 | #endif | |
25aaa98a RS |
2523 | sk_SSL_CIPHER_free(a->cipher_list); |
2524 | sk_SSL_CIPHER_free(a->cipher_list_by_id); | |
e0e920b1 | 2525 | ssl_cert_free(a->cert); |
222561fe RS |
2526 | sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free); |
2527 | sk_X509_pop_free(a->extra_certs, X509_free); | |
0f113f3e | 2528 | a->comp_methods = NULL; |
e783bae2 | 2529 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 2530 | sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); |
e783bae2 | 2531 | #endif |
edc032b5 | 2532 | #ifndef OPENSSL_NO_SRP |
0f113f3e | 2533 | SSL_CTX_SRP_CTX_free(a); |
edc032b5 | 2534 | #endif |
bdfe932d | 2535 | #ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 2536 | ENGINE_finish(a->client_cert_engine); |
ddac1974 | 2537 | #endif |
8671b898 | 2538 | |
e481f9b9 | 2539 | #ifndef OPENSSL_NO_EC |
25aaa98a RS |
2540 | OPENSSL_free(a->tlsext_ecpointformatlist); |
2541 | OPENSSL_free(a->tlsext_ellipticcurvelist); | |
8671b898 | 2542 | #endif |
e481f9b9 | 2543 | OPENSSL_free(a->alpn_client_proto_list); |
8671b898 | 2544 | |
16203f7b AG |
2545 | CRYPTO_THREAD_lock_free(a->lock); |
2546 | ||
0f113f3e MC |
2547 | OPENSSL_free(a); |
2548 | } | |
d02b48c6 | 2549 | |
3ae76679 | 2550 | void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) |
0f113f3e MC |
2551 | { |
2552 | ctx->default_passwd_callback = cb; | |
2553 | } | |
2554 | ||
2555 | void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) | |
2556 | { | |
2557 | ctx->default_passwd_callback_userdata = u; | |
2558 | } | |
2559 | ||
0c452abc CH |
2560 | pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) |
2561 | { | |
2562 | return ctx->default_passwd_callback; | |
2563 | } | |
2564 | ||
2565 | void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) | |
2566 | { | |
2567 | return ctx->default_passwd_callback_userdata; | |
2568 | } | |
2569 | ||
a974e64a MC |
2570 | void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb) |
2571 | { | |
2572 | s->default_passwd_callback = cb; | |
2573 | } | |
2574 | ||
2575 | void SSL_set_default_passwd_cb_userdata(SSL *s, void *u) | |
2576 | { | |
2577 | s->default_passwd_callback_userdata = u; | |
2578 | } | |
2579 | ||
0c452abc CH |
2580 | pem_password_cb *SSL_get_default_passwd_cb(SSL *s) |
2581 | { | |
2582 | return s->default_passwd_callback; | |
2583 | } | |
2584 | ||
2585 | void *SSL_get_default_passwd_cb_userdata(SSL *s) | |
2586 | { | |
2587 | return s->default_passwd_callback_userdata; | |
2588 | } | |
2589 | ||
0f113f3e MC |
2590 | void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, |
2591 | int (*cb) (X509_STORE_CTX *, void *), | |
2592 | void *arg) | |
2593 | { | |
2594 | ctx->app_verify_callback = cb; | |
2595 | ctx->app_verify_arg = arg; | |
2596 | } | |
2597 | ||
2598 | void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, | |
2599 | int (*cb) (int, X509_STORE_CTX *)) | |
2600 | { | |
2601 | ctx->verify_mode = mode; | |
2602 | ctx->default_verify_callback = cb; | |
2603 | } | |
2604 | ||
2605 | void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) | |
2606 | { | |
2607 | X509_VERIFY_PARAM_set_depth(ctx->param, depth); | |
2608 | } | |
2609 | ||
2610 | void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), | |
2611 | void *arg) | |
2612 | { | |
2613 | ssl_cert_set_cert_cb(c->cert, cb, arg); | |
2614 | } | |
2615 | ||
2616 | void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg) | |
2617 | { | |
2618 | ssl_cert_set_cert_cb(s->cert, cb, arg); | |
2619 | } | |
18d71588 | 2620 | |
2cf28d61 | 2621 | void ssl_set_masks(SSL *s) |
0f113f3e | 2622 | { |
60f43e9e | 2623 | #if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_GOST) |
0f113f3e | 2624 | CERT_PKEY *cpk; |
60f43e9e | 2625 | #endif |
6383d316 | 2626 | CERT *c = s->cert; |
f7d53487 | 2627 | uint32_t *pvalid = s->s3->tmp.valid_flags; |
bc71f910 | 2628 | int rsa_enc, rsa_sign, dh_tmp, dsa_sign; |
361a1191 | 2629 | unsigned long mask_k, mask_a; |
10bf4fc2 | 2630 | #ifndef OPENSSL_NO_EC |
361a1191 | 2631 | int have_ecc_cert, ecdsa_ok; |
0f113f3e | 2632 | X509 *x = NULL; |
14536c8c | 2633 | #endif |
0f113f3e MC |
2634 | if (c == NULL) |
2635 | return; | |
d02b48c6 | 2636 | |
bc36ee62 | 2637 | #ifndef OPENSSL_NO_DH |
0f113f3e | 2638 | dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto); |
d02b48c6 | 2639 | #else |
361a1191 | 2640 | dh_tmp = 0; |
d02b48c6 RE |
2641 | #endif |
2642 | ||
6383d316 | 2643 | rsa_enc = pvalid[SSL_PKEY_RSA_ENC] & CERT_PKEY_VALID; |
6383d316 | 2644 | rsa_sign = pvalid[SSL_PKEY_RSA_SIGN] & CERT_PKEY_SIGN; |
6383d316 | 2645 | dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_SIGN; |
14536c8c | 2646 | #ifndef OPENSSL_NO_EC |
6383d316 | 2647 | have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID; |
14536c8c | 2648 | #endif |
0f113f3e MC |
2649 | mask_k = 0; |
2650 | mask_a = 0; | |
0e1dba93 | 2651 | |
d02b48c6 | 2652 | #ifdef CIPHER_DEBUG |
b7557ccf AG |
2653 | fprintf(stderr, "dht=%d re=%d rs=%d ds=%d\n", |
2654 | dh_tmp, rsa_enc, rsa_sign, dsa_sign); | |
0f113f3e MC |
2655 | #endif |
2656 | ||
2a9b9654 | 2657 | #ifndef OPENSSL_NO_GOST |
e44380a9 DB |
2658 | cpk = &(c->pkeys[SSL_PKEY_GOST12_512]); |
2659 | if (cpk->x509 != NULL && cpk->privatekey != NULL) { | |
2660 | mask_k |= SSL_kGOST; | |
2661 | mask_a |= SSL_aGOST12; | |
2662 | } | |
2663 | cpk = &(c->pkeys[SSL_PKEY_GOST12_256]); | |
2664 | if (cpk->x509 != NULL && cpk->privatekey != NULL) { | |
2665 | mask_k |= SSL_kGOST; | |
2666 | mask_a |= SSL_aGOST12; | |
2667 | } | |
0f113f3e MC |
2668 | cpk = &(c->pkeys[SSL_PKEY_GOST01]); |
2669 | if (cpk->x509 != NULL && cpk->privatekey != NULL) { | |
2670 | mask_k |= SSL_kGOST; | |
2671 | mask_a |= SSL_aGOST01; | |
2672 | } | |
2a9b9654 | 2673 | #endif |
0f113f3e | 2674 | |
361a1191 | 2675 | if (rsa_enc) |
0f113f3e | 2676 | mask_k |= SSL_kRSA; |
d02b48c6 | 2677 | |
0f113f3e MC |
2678 | if (dh_tmp) |
2679 | mask_k |= SSL_kDHE; | |
d02b48c6 | 2680 | |
0f113f3e MC |
2681 | if (rsa_enc || rsa_sign) { |
2682 | mask_a |= SSL_aRSA; | |
0f113f3e | 2683 | } |
d02b48c6 | 2684 | |
0f113f3e MC |
2685 | if (dsa_sign) { |
2686 | mask_a |= SSL_aDSS; | |
0f113f3e | 2687 | } |
d02b48c6 | 2688 | |
0f113f3e | 2689 | mask_a |= SSL_aNULL; |
d02b48c6 | 2690 | |
0f113f3e MC |
2691 | /* |
2692 | * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites | |
2693 | * depending on the key usage extension. | |
2694 | */ | |
14536c8c | 2695 | #ifndef OPENSSL_NO_EC |
0f113f3e | 2696 | if (have_ecc_cert) { |
a8d8e06b | 2697 | uint32_t ex_kusage; |
0f113f3e MC |
2698 | cpk = &c->pkeys[SSL_PKEY_ECC]; |
2699 | x = cpk->x509; | |
a8d8e06b | 2700 | ex_kusage = X509_get_key_usage(x); |
a8d8e06b | 2701 | ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE; |
6383d316 | 2702 | if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN)) |
0f113f3e | 2703 | ecdsa_ok = 0; |
c7c46256 | 2704 | if (ecdsa_ok) |
0f113f3e | 2705 | mask_a |= SSL_aECDSA; |
0f113f3e | 2706 | } |
14536c8c | 2707 | #endif |
ea262260 | 2708 | |
10bf4fc2 | 2709 | #ifndef OPENSSL_NO_EC |
fe6ef247 | 2710 | mask_k |= SSL_kECDHE; |
ea262260 | 2711 | #endif |
ddac1974 NL |
2712 | |
2713 | #ifndef OPENSSL_NO_PSK | |
0f113f3e MC |
2714 | mask_k |= SSL_kPSK; |
2715 | mask_a |= SSL_aPSK; | |
526f94ad DSH |
2716 | if (mask_k & SSL_kRSA) |
2717 | mask_k |= SSL_kRSAPSK; | |
2718 | if (mask_k & SSL_kDHE) | |
2719 | mask_k |= SSL_kDHEPSK; | |
2720 | if (mask_k & SSL_kECDHE) | |
2721 | mask_k |= SSL_kECDHEPSK; | |
ddac1974 NL |
2722 | #endif |
2723 | ||
4d69f9e6 DSH |
2724 | s->s3->tmp.mask_k = mask_k; |
2725 | s->s3->tmp.mask_a = mask_a; | |
0f113f3e | 2726 | } |
d02b48c6 | 2727 | |
ef236ec3 DSH |
2728 | #ifndef OPENSSL_NO_EC |
2729 | ||
a2f9200f | 2730 | int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) |
0f113f3e | 2731 | { |
ce0c1f2b | 2732 | if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aECDSA) { |
0f113f3e | 2733 | /* key usage, if present, must allow signing */ |
ce0c1f2b | 2734 | if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) { |
0f113f3e MC |
2735 | SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, |
2736 | SSL_R_ECC_CERT_NOT_FOR_SIGNING); | |
2737 | return 0; | |
2738 | } | |
2739 | } | |
0f113f3e MC |
2740 | return 1; /* all checks are ok */ |
2741 | } | |
ea262260 | 2742 | |
ef236ec3 DSH |
2743 | #endif |
2744 | ||
2daceb03 | 2745 | static int ssl_get_server_cert_index(const SSL *s) |
0f113f3e MC |
2746 | { |
2747 | int idx; | |
2748 | idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher); | |
2749 | if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509) | |
2750 | idx = SSL_PKEY_RSA_SIGN; | |
e44380a9 DB |
2751 | if (idx == SSL_PKEY_GOST_EC) { |
2752 | if (s->cert->pkeys[SSL_PKEY_GOST12_512].x509) | |
2753 | idx = SSL_PKEY_GOST12_512; | |
2754 | else if (s->cert->pkeys[SSL_PKEY_GOST12_256].x509) | |
2755 | idx = SSL_PKEY_GOST12_256; | |
2756 | else if (s->cert->pkeys[SSL_PKEY_GOST01].x509) | |
2757 | idx = SSL_PKEY_GOST01; | |
2758 | else | |
2759 | idx = -1; | |
2760 | } | |
0f113f3e MC |
2761 | if (idx == -1) |
2762 | SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR); | |
2763 | return idx; | |
2764 | } | |
a9e1c50b | 2765 | |
6383d316 | 2766 | CERT_PKEY *ssl_get_server_send_pkey(SSL *s) |
0f113f3e MC |
2767 | { |
2768 | CERT *c; | |
2769 | int i; | |
ea262260 | 2770 | |
0f113f3e MC |
2771 | c = s->cert; |
2772 | if (!s->s3 || !s->s3->tmp.new_cipher) | |
2773 | return NULL; | |
2cf28d61 | 2774 | ssl_set_masks(s); |
a9e1c50b | 2775 | |
0f113f3e | 2776 | i = ssl_get_server_cert_index(s); |
a9e1c50b | 2777 | |
0f113f3e MC |
2778 | /* This may or may not be an error. */ |
2779 | if (i < 0) | |
2780 | return NULL; | |
a9e1c50b | 2781 | |
0f113f3e MC |
2782 | /* May be NULL. */ |
2783 | return &c->pkeys[i]; | |
2784 | } | |
d02b48c6 | 2785 | |
0f113f3e MC |
2786 | EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, |
2787 | const EVP_MD **pmd) | |
2788 | { | |
2789 | unsigned long alg_a; | |
2790 | CERT *c; | |
2791 | int idx = -1; | |
d02b48c6 | 2792 | |
0f113f3e MC |
2793 | alg_a = cipher->algorithm_auth; |
2794 | c = s->cert; | |
d02b48c6 | 2795 | |
0f113f3e MC |
2796 | if ((alg_a & SSL_aDSS) && |
2797 | (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) | |
2798 | idx = SSL_PKEY_DSA_SIGN; | |
2799 | else if (alg_a & SSL_aRSA) { | |
2800 | if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) | |
2801 | idx = SSL_PKEY_RSA_SIGN; | |
2802 | else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) | |
2803 | idx = SSL_PKEY_RSA_ENC; | |
2804 | } else if ((alg_a & SSL_aECDSA) && | |
2805 | (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) | |
2806 | idx = SSL_PKEY_ECC; | |
2807 | if (idx == -1) { | |
2808 | SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR); | |
2809 | return (NULL); | |
2810 | } | |
2811 | if (pmd) | |
d376e57d | 2812 | *pmd = s->s3->tmp.md[idx]; |
0f113f3e MC |
2813 | return c->pkeys[idx].privatekey; |
2814 | } | |
d02b48c6 | 2815 | |
a398f821 | 2816 | int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, |
0f113f3e MC |
2817 | size_t *serverinfo_length) |
2818 | { | |
2819 | CERT *c = NULL; | |
2820 | int i = 0; | |
2821 | *serverinfo_length = 0; | |
2822 | ||
2823 | c = s->cert; | |
2824 | i = ssl_get_server_cert_index(s); | |
2825 | ||
2826 | if (i == -1) | |
2827 | return 0; | |
2828 | if (c->pkeys[i].serverinfo == NULL) | |
2829 | return 0; | |
2830 | ||
2831 | *serverinfo = c->pkeys[i].serverinfo; | |
2832 | *serverinfo_length = c->pkeys[i].serverinfo_length; | |
2833 | return 1; | |
2834 | } | |
0f113f3e MC |
2835 | |
2836 | void ssl_update_cache(SSL *s, int mode) | |
2837 | { | |
2838 | int i; | |
2839 | ||
2840 | /* | |
2841 | * If the session_id_length is 0, we are not supposed to cache it, and it | |
2842 | * would be rather hard to do anyway :-) | |
2843 | */ | |
2844 | if (s->session->session_id_length == 0) | |
2845 | return; | |
2846 | ||
2847 | i = s->session_ctx->session_cache_mode; | |
2848 | if ((i & mode) && (!s->hit) | |
2849 | && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) | |
2850 | || SSL_CTX_add_session(s->session_ctx, s->session)) | |
2851 | && (s->session_ctx->new_session_cb != NULL)) { | |
16203f7b | 2852 | SSL_SESSION_up_ref(s->session); |
0f113f3e MC |
2853 | if (!s->session_ctx->new_session_cb(s, s->session)) |
2854 | SSL_SESSION_free(s->session); | |
2855 | } | |
2856 | ||
2857 | /* auto flush every 255 connections */ | |
2858 | if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) { | |
2859 | if ((((mode & SSL_SESS_CACHE_CLIENT) | |
2860 | ? s->session_ctx->stats.sess_connect_good | |
2861 | : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) { | |
2862 | SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL)); | |
2863 | } | |
2864 | } | |
2865 | } | |
d02b48c6 | 2866 | |
ba168244 | 2867 | const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx) |
0f113f3e MC |
2868 | { |
2869 | return ctx->method; | |
2870 | } | |
ba168244 | 2871 | |
4ebb342f | 2872 | const SSL_METHOD *SSL_get_ssl_method(SSL *s) |
0f113f3e MC |
2873 | { |
2874 | return (s->method); | |
2875 | } | |
d02b48c6 | 2876 | |
4ebb342f | 2877 | int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) |
0f113f3e | 2878 | { |
0f113f3e MC |
2879 | int ret = 1; |
2880 | ||
2881 | if (s->method != meth) { | |
919ba009 VD |
2882 | const SSL_METHOD *sm = s->method; |
2883 | int (*hf)(SSL *) = s->handshake_func; | |
0f113f3e | 2884 | |
919ba009 | 2885 | if (sm->version == meth->version) |
0f113f3e MC |
2886 | s->method = meth; |
2887 | else { | |
919ba009 | 2888 | sm->ssl_free(s); |
0f113f3e MC |
2889 | s->method = meth; |
2890 | ret = s->method->ssl_new(s); | |
2891 | } | |
2892 | ||
919ba009 | 2893 | if (hf == sm->ssl_connect) |
0f113f3e | 2894 | s->handshake_func = meth->ssl_connect; |
919ba009 | 2895 | else if (hf == sm->ssl_accept) |
0f113f3e MC |
2896 | s->handshake_func = meth->ssl_accept; |
2897 | } | |
2898 | return (ret); | |
2899 | } | |
2900 | ||
2901 | int SSL_get_error(const SSL *s, int i) | |
2902 | { | |
2903 | int reason; | |
2904 | unsigned long l; | |
2905 | BIO *bio; | |
2906 | ||
2907 | if (i > 0) | |
2908 | return (SSL_ERROR_NONE); | |
2909 | ||
2910 | /* | |
2911 | * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc, | |
2912 | * where we do encode the error | |
2913 | */ | |
2914 | if ((l = ERR_peek_error()) != 0) { | |
2915 | if (ERR_GET_LIB(l) == ERR_LIB_SYS) | |
2916 | return (SSL_ERROR_SYSCALL); | |
2917 | else | |
2918 | return (SSL_ERROR_SSL); | |
2919 | } | |
2920 | ||
2921 | if ((i < 0) && SSL_want_read(s)) { | |
2922 | bio = SSL_get_rbio(s); | |
2923 | if (BIO_should_read(bio)) | |
2924 | return (SSL_ERROR_WANT_READ); | |
2925 | else if (BIO_should_write(bio)) | |
2926 | /* | |
2927 | * This one doesn't make too much sense ... We never try to write | |
2928 | * to the rbio, and an application program where rbio and wbio | |
2929 | * are separate couldn't even know what it should wait for. | |
2930 | * However if we ever set s->rwstate incorrectly (so that we have | |
2931 | * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and | |
2932 | * wbio *are* the same, this test works around that bug; so it | |
2933 | * might be safer to keep it. | |
2934 | */ | |
2935 | return (SSL_ERROR_WANT_WRITE); | |
2936 | else if (BIO_should_io_special(bio)) { | |
2937 | reason = BIO_get_retry_reason(bio); | |
2938 | if (reason == BIO_RR_CONNECT) | |
2939 | return (SSL_ERROR_WANT_CONNECT); | |
2940 | else if (reason == BIO_RR_ACCEPT) | |
2941 | return (SSL_ERROR_WANT_ACCEPT); | |
2942 | else | |
2943 | return (SSL_ERROR_SYSCALL); /* unknown */ | |
2944 | } | |
2945 | } | |
2946 | ||
2947 | if ((i < 0) && SSL_want_write(s)) { | |
2948 | bio = SSL_get_wbio(s); | |
2949 | if (BIO_should_write(bio)) | |
2950 | return (SSL_ERROR_WANT_WRITE); | |
2951 | else if (BIO_should_read(bio)) | |
2952 | /* | |
2953 | * See above (SSL_want_read(s) with BIO_should_write(bio)) | |
2954 | */ | |
2955 | return (SSL_ERROR_WANT_READ); | |
2956 | else if (BIO_should_io_special(bio)) { | |
2957 | reason = BIO_get_retry_reason(bio); | |
2958 | if (reason == BIO_RR_CONNECT) | |
2959 | return (SSL_ERROR_WANT_CONNECT); | |
2960 | else if (reason == BIO_RR_ACCEPT) | |
2961 | return (SSL_ERROR_WANT_ACCEPT); | |
2962 | else | |
2963 | return (SSL_ERROR_SYSCALL); | |
2964 | } | |
2965 | } | |
2966 | if ((i < 0) && SSL_want_x509_lookup(s)) { | |
2967 | return (SSL_ERROR_WANT_X509_LOOKUP); | |
2968 | } | |
07bbc92c MC |
2969 | if ((i < 0) && SSL_want_async(s)) { |
2970 | return SSL_ERROR_WANT_ASYNC; | |
2971 | } | |
0f113f3e MC |
2972 | |
2973 | if (i == 0) { | |
2974 | if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && | |
2975 | (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) | |
2976 | return (SSL_ERROR_ZERO_RETURN); | |
2977 | } | |
2978 | return (SSL_ERROR_SYSCALL); | |
2979 | } | |
d02b48c6 | 2980 | |
add2f5ca MC |
2981 | static int ssl_do_handshake_intern(void *vargs) |
2982 | { | |
2983 | struct ssl_async_args *args; | |
2984 | SSL *s; | |
2985 | ||
2986 | args = (struct ssl_async_args *)vargs; | |
2987 | s = args->s; | |
2988 | ||
2989 | return s->handshake_func(s); | |
2990 | } | |
2991 | ||
4f43d0e7 | 2992 | int SSL_do_handshake(SSL *s) |
0f113f3e MC |
2993 | { |
2994 | int ret = 1; | |
2995 | ||
2996 | if (s->handshake_func == NULL) { | |
2997 | SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET); | |
add2f5ca | 2998 | return -1; |
0f113f3e MC |
2999 | } |
3000 | ||
3001 | s->method->ssl_renegotiate_check(s); | |
3002 | ||
3003 | if (SSL_in_init(s) || SSL_in_before(s)) { | |
add2f5ca MC |
3004 | if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
3005 | struct ssl_async_args args; | |
3006 | ||
3007 | args.s = s; | |
3008 | ||
7fecbf6f | 3009 | ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern); |
add2f5ca MC |
3010 | } else { |
3011 | ret = s->handshake_func(s); | |
3012 | } | |
0f113f3e | 3013 | } |
add2f5ca | 3014 | return ret; |
0f113f3e MC |
3015 | } |
3016 | ||
4f43d0e7 | 3017 | void SSL_set_accept_state(SSL *s) |
0f113f3e MC |
3018 | { |
3019 | s->server = 1; | |
3020 | s->shutdown = 0; | |
fe3a3291 | 3021 | ossl_statem_clear(s); |
0f113f3e | 3022 | s->handshake_func = s->method->ssl_accept; |
d31fb0b5 | 3023 | clear_ciphers(s); |
0f113f3e | 3024 | } |
d02b48c6 | 3025 | |
4f43d0e7 | 3026 | void SSL_set_connect_state(SSL *s) |
0f113f3e MC |
3027 | { |
3028 | s->server = 0; | |
3029 | s->shutdown = 0; | |
fe3a3291 | 3030 | ossl_statem_clear(s); |
0f113f3e | 3031 | s->handshake_func = s->method->ssl_connect; |
d31fb0b5 | 3032 | clear_ciphers(s); |
0f113f3e | 3033 | } |
d02b48c6 | 3034 | |
4f43d0e7 | 3035 | int ssl_undefined_function(SSL *s) |
0f113f3e MC |
3036 | { |
3037 | SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3038 | return (0); | |
3039 | } | |
d02b48c6 | 3040 | |
41a15c4f | 3041 | int ssl_undefined_void_function(void) |
0f113f3e MC |
3042 | { |
3043 | SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION, | |
3044 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3045 | return (0); | |
3046 | } | |
41a15c4f | 3047 | |
0821bcd4 | 3048 | int ssl_undefined_const_function(const SSL *s) |
0f113f3e | 3049 | { |
0f113f3e MC |
3050 | return (0); |
3051 | } | |
0821bcd4 | 3052 | |
2b8fa1d5 | 3053 | const SSL_METHOD *ssl_bad_method(int ver) |
0f113f3e MC |
3054 | { |
3055 | SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3056 | return (NULL); | |
3057 | } | |
d02b48c6 | 3058 | |
3eb2aff4 | 3059 | const char *ssl_protocol_to_string(int version) |
7d650072 KR |
3060 | { |
3061 | if (version == TLS1_2_VERSION) | |
3062 | return "TLSv1.2"; | |
3063 | else if (version == TLS1_1_VERSION) | |
3064 | return "TLSv1.1"; | |
3065 | else if (version == TLS1_VERSION) | |
ee3a6c64 | 3066 | return "TLSv1"; |
7d650072 KR |
3067 | else if (version == SSL3_VERSION) |
3068 | return "SSLv3"; | |
3069 | else if (version == DTLS1_BAD_VER) | |
3070 | return "DTLSv0.9"; | |
3071 | else if (version == DTLS1_VERSION) | |
3072 | return "DTLSv1"; | |
3073 | else if (version == DTLS1_2_VERSION) | |
3074 | return "DTLSv1.2"; | |
0f113f3e MC |
3075 | else |
3076 | return ("unknown"); | |
3077 | } | |
d02b48c6 | 3078 | |
7d650072 KR |
3079 | const char *SSL_get_version(const SSL *s) |
3080 | { | |
3eb2aff4 | 3081 | return ssl_protocol_to_string(s->version); |
7d650072 KR |
3082 | } |
3083 | ||
4f43d0e7 | 3084 | SSL *SSL_dup(SSL *s) |
0f113f3e MC |
3085 | { |
3086 | STACK_OF(X509_NAME) *sk; | |
3087 | X509_NAME *xn; | |
3088 | SSL *ret; | |
3089 | int i; | |
3090 | ||
919ba009 VD |
3091 | /* If we're not quiescent, just up_ref! */ |
3092 | if (!SSL_in_init(s) || !SSL_in_before(s)) { | |
16203f7b | 3093 | CRYPTO_atomic_add(&s->references, 1, &i, s->lock); |
919ba009 VD |
3094 | return s; |
3095 | } | |
3096 | ||
3097 | /* | |
3098 | * Otherwise, copy configuration state, and session if set. | |
3099 | */ | |
0f113f3e MC |
3100 | if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) |
3101 | return (NULL); | |
3102 | ||
0f113f3e | 3103 | if (s->session != NULL) { |
919ba009 VD |
3104 | /* |
3105 | * Arranges to share the same session via up_ref. This "copies" | |
3106 | * session-id, SSL_METHOD, sid_ctx, and 'cert' | |
3107 | */ | |
61986d32 | 3108 | if (!SSL_copy_session_id(ret, s)) |
17dd65e6 | 3109 | goto err; |
0f113f3e MC |
3110 | } else { |
3111 | /* | |
3112 | * No session has been established yet, so we have to expect that | |
3113 | * s->cert or ret->cert will be changed later -- they should not both | |
3114 | * point to the same object, and thus we can't use | |
3115 | * SSL_copy_session_id. | |
3116 | */ | |
919ba009 VD |
3117 | if (!SSL_set_ssl_method(ret, s->method)) |
3118 | goto err; | |
0f113f3e MC |
3119 | |
3120 | if (s->cert != NULL) { | |
e0e920b1 | 3121 | ssl_cert_free(ret->cert); |
0f113f3e MC |
3122 | ret->cert = ssl_cert_dup(s->cert); |
3123 | if (ret->cert == NULL) | |
3124 | goto err; | |
3125 | } | |
3126 | ||
61986d32 | 3127 | if (!SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length)) |
69f68237 | 3128 | goto err; |
0f113f3e MC |
3129 | } |
3130 | ||
919ba009 VD |
3131 | ssl_dane_dup(ret, s); |
3132 | ret->version = s->version; | |
0f113f3e MC |
3133 | ret->options = s->options; |
3134 | ret->mode = s->mode; | |
3135 | SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); | |
3136 | SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); | |
3137 | ret->msg_callback = s->msg_callback; | |
3138 | ret->msg_callback_arg = s->msg_callback_arg; | |
3139 | SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s)); | |
3140 | SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); | |
3141 | ret->generate_session_id = s->generate_session_id; | |
3142 | ||
3143 | SSL_set_info_callback(ret, SSL_get_info_callback(s)); | |
3144 | ||
0f113f3e MC |
3145 | /* copy app data, a little dangerous perhaps */ |
3146 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) | |
3147 | goto err; | |
3148 | ||
3149 | /* setup rbio, and wbio */ | |
3150 | if (s->rbio != NULL) { | |
3151 | if (!BIO_dup_state(s->rbio, (char *)&ret->rbio)) | |
3152 | goto err; | |
3153 | } | |
3154 | if (s->wbio != NULL) { | |
3155 | if (s->wbio != s->rbio) { | |
3156 | if (!BIO_dup_state(s->wbio, (char *)&ret->wbio)) | |
3157 | goto err; | |
3158 | } else | |
3159 | ret->wbio = ret->rbio; | |
3160 | } | |
919ba009 | 3161 | |
0f113f3e | 3162 | ret->server = s->server; |
919ba009 VD |
3163 | if (s->handshake_func) { |
3164 | if (s->server) | |
3165 | SSL_set_accept_state(ret); | |
3166 | else | |
3167 | SSL_set_connect_state(ret); | |
3168 | } | |
0f113f3e | 3169 | ret->shutdown = s->shutdown; |
0f113f3e MC |
3170 | ret->hit = s->hit; |
3171 | ||
a974e64a MC |
3172 | ret->default_passwd_callback = s->default_passwd_callback; |
3173 | ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata; | |
3174 | ||
0f113f3e MC |
3175 | X509_VERIFY_PARAM_inherit(ret->param, s->param); |
3176 | ||
3177 | /* dup the cipher_list and cipher_list_by_id stacks */ | |
3178 | if (s->cipher_list != NULL) { | |
3179 | if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) | |
3180 | goto err; | |
3181 | } | |
3182 | if (s->cipher_list_by_id != NULL) | |
3183 | if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id)) | |
3184 | == NULL) | |
3185 | goto err; | |
3186 | ||
3187 | /* Dup the client_CA list */ | |
3188 | if (s->client_CA != NULL) { | |
3189 | if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL) | |
3190 | goto err; | |
3191 | ret->client_CA = sk; | |
3192 | for (i = 0; i < sk_X509_NAME_num(sk); i++) { | |
3193 | xn = sk_X509_NAME_value(sk, i); | |
3194 | if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) { | |
3195 | X509_NAME_free(xn); | |
3196 | goto err; | |
3197 | } | |
3198 | } | |
3199 | } | |
66696478 | 3200 | return ret; |
0f113f3e | 3201 | |
0f113f3e | 3202 | err: |
66696478 RS |
3203 | SSL_free(ret); |
3204 | return NULL; | |
0f113f3e | 3205 | } |
d02b48c6 | 3206 | |
4f43d0e7 | 3207 | void ssl_clear_cipher_ctx(SSL *s) |
0f113f3e MC |
3208 | { |
3209 | if (s->enc_read_ctx != NULL) { | |
846ec07d | 3210 | EVP_CIPHER_CTX_free(s->enc_read_ctx); |
0f113f3e MC |
3211 | s->enc_read_ctx = NULL; |
3212 | } | |
3213 | if (s->enc_write_ctx != NULL) { | |
846ec07d | 3214 | EVP_CIPHER_CTX_free(s->enc_write_ctx); |
0f113f3e MC |
3215 | s->enc_write_ctx = NULL; |
3216 | } | |
09b6c2ef | 3217 | #ifndef OPENSSL_NO_COMP |
efa7dd64 RS |
3218 | COMP_CTX_free(s->expand); |
3219 | s->expand = NULL; | |
3220 | COMP_CTX_free(s->compress); | |
3221 | s->compress = NULL; | |
0f113f3e MC |
3222 | #endif |
3223 | } | |
d02b48c6 | 3224 | |
0821bcd4 | 3225 | X509 *SSL_get_certificate(const SSL *s) |
0f113f3e MC |
3226 | { |
3227 | if (s->cert != NULL) | |
3228 | return (s->cert->key->x509); | |
3229 | else | |
3230 | return (NULL); | |
3231 | } | |
d02b48c6 | 3232 | |
a25f9adc | 3233 | EVP_PKEY *SSL_get_privatekey(const SSL *s) |
0f113f3e MC |
3234 | { |
3235 | if (s->cert != NULL) | |
3236 | return (s->cert->key->privatekey); | |
3237 | else | |
3238 | return (NULL); | |
3239 | } | |
d02b48c6 | 3240 | |
a25f9adc | 3241 | X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx) |
0f113f3e MC |
3242 | { |
3243 | if (ctx->cert != NULL) | |
3244 | return ctx->cert->key->x509; | |
3245 | else | |
3246 | return NULL; | |
3247 | } | |
a25f9adc DSH |
3248 | |
3249 | EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx) | |
0f113f3e MC |
3250 | { |
3251 | if (ctx->cert != NULL) | |
3252 | return ctx->cert->key->privatekey; | |
3253 | else | |
3254 | return NULL; | |
3255 | } | |
a25f9adc | 3256 | |
babb3798 | 3257 | const SSL_CIPHER *SSL_get_current_cipher(const SSL *s) |
0f113f3e MC |
3258 | { |
3259 | if ((s->session != NULL) && (s->session->cipher != NULL)) | |
3260 | return (s->session->cipher); | |
3261 | return (NULL); | |
3262 | } | |
3263 | ||
377dcdba | 3264 | const COMP_METHOD *SSL_get_current_compression(SSL *s) |
0f113f3e | 3265 | { |
9a555706 RS |
3266 | #ifndef OPENSSL_NO_COMP |
3267 | return s->compress ? COMP_CTX_get_method(s->compress) : NULL; | |
3268 | #else | |
3269 | return NULL; | |
3270 | #endif | |
0f113f3e | 3271 | } |
377dcdba RL |
3272 | |
3273 | const COMP_METHOD *SSL_get_current_expansion(SSL *s) | |
0f113f3e | 3274 | { |
9a555706 RS |
3275 | #ifndef OPENSSL_NO_COMP |
3276 | return s->expand ? COMP_CTX_get_method(s->expand) : NULL; | |
3277 | #else | |
3278 | return NULL; | |
0f113f3e | 3279 | #endif |
9a555706 | 3280 | } |
0f113f3e MC |
3281 | |
3282 | int ssl_init_wbio_buffer(SSL *s, int push) | |
3283 | { | |
3284 | BIO *bbio; | |
3285 | ||
3286 | if (s->bbio == NULL) { | |
3287 | bbio = BIO_new(BIO_f_buffer()); | |
3288 | if (bbio == NULL) | |
3289 | return (0); | |
3290 | s->bbio = bbio; | |
3291 | } else { | |
3292 | bbio = s->bbio; | |
3293 | if (s->bbio == s->wbio) | |
3294 | s->wbio = BIO_pop(s->wbio); | |
3295 | } | |
3296 | (void)BIO_reset(bbio); | |
3297 | /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ | |
3298 | if (!BIO_set_read_buffer_size(bbio, 1)) { | |
3299 | SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB); | |
3300 | return (0); | |
3301 | } | |
3302 | if (push) { | |
3303 | if (s->wbio != bbio) | |
3304 | s->wbio = BIO_push(bbio, s->wbio); | |
3305 | } else { | |
3306 | if (s->wbio == bbio) | |
3307 | s->wbio = BIO_pop(bbio); | |
3308 | } | |
3309 | return (1); | |
3310 | } | |
413c4f45 | 3311 | |
4f43d0e7 | 3312 | void ssl_free_wbio_buffer(SSL *s) |
0f113f3e | 3313 | { |
62adbcee | 3314 | /* callers ensure s is never null */ |
0f113f3e MC |
3315 | if (s->bbio == NULL) |
3316 | return; | |
3317 | ||
3318 | if (s->bbio == s->wbio) { | |
3319 | /* remove buffering */ | |
3320 | s->wbio = BIO_pop(s->wbio); | |
f3f1cf84 RS |
3321 | #ifdef REF_DEBUG |
3322 | /* | |
3323 | * not the usual REF_DEBUG, but this avoids | |
3324 | * adding one more preprocessor symbol | |
3325 | */ | |
0f113f3e MC |
3326 | assert(s->wbio != NULL); |
3327 | #endif | |
3328 | } | |
3329 | BIO_free(s->bbio); | |
3330 | s->bbio = NULL; | |
3331 | } | |
3332 | ||
3333 | void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) | |
3334 | { | |
3335 | ctx->quiet_shutdown = mode; | |
3336 | } | |
58964a49 | 3337 | |
0821bcd4 | 3338 | int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) |
0f113f3e MC |
3339 | { |
3340 | return (ctx->quiet_shutdown); | |
3341 | } | |
58964a49 | 3342 | |
0f113f3e MC |
3343 | void SSL_set_quiet_shutdown(SSL *s, int mode) |
3344 | { | |
3345 | s->quiet_shutdown = mode; | |
3346 | } | |
58964a49 | 3347 | |
0821bcd4 | 3348 | int SSL_get_quiet_shutdown(const SSL *s) |
0f113f3e MC |
3349 | { |
3350 | return (s->quiet_shutdown); | |
3351 | } | |
58964a49 | 3352 | |
0f113f3e MC |
3353 | void SSL_set_shutdown(SSL *s, int mode) |
3354 | { | |
3355 | s->shutdown = mode; | |
3356 | } | |
58964a49 | 3357 | |
0821bcd4 | 3358 | int SSL_get_shutdown(const SSL *s) |
0f113f3e MC |
3359 | { |
3360 | return (s->shutdown); | |
3361 | } | |
58964a49 | 3362 | |
0821bcd4 | 3363 | int SSL_version(const SSL *s) |
0f113f3e MC |
3364 | { |
3365 | return (s->version); | |
3366 | } | |
58964a49 | 3367 | |
0821bcd4 | 3368 | SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) |
0f113f3e MC |
3369 | { |
3370 | return (ssl->ctx); | |
3371 | } | |
3372 | ||
3373 | SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx) | |
3374 | { | |
24a0d393 | 3375 | CERT *new_cert; |
0f113f3e MC |
3376 | if (ssl->ctx == ctx) |
3377 | return ssl->ctx; | |
0f113f3e MC |
3378 | if (ctx == NULL) |
3379 | ctx = ssl->initial_ctx; | |
24a0d393 KR |
3380 | new_cert = ssl_cert_dup(ctx->cert); |
3381 | if (new_cert == NULL) { | |
3382 | return NULL; | |
0f113f3e | 3383 | } |
24a0d393 KR |
3384 | ssl_cert_free(ssl->cert); |
3385 | ssl->cert = new_cert; | |
0f113f3e MC |
3386 | |
3387 | /* | |
3388 | * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH), | |
3389 | * so setter APIs must prevent invalid lengths from entering the system. | |
3390 | */ | |
3391 | OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx)); | |
3392 | ||
3393 | /* | |
3394 | * If the session ID context matches that of the parent SSL_CTX, | |
3395 | * inherit it from the new SSL_CTX as well. If however the context does | |
3396 | * not match (i.e., it was set per-ssl with SSL_set_session_id_context), | |
3397 | * leave it unchanged. | |
3398 | */ | |
3399 | if ((ssl->ctx != NULL) && | |
3400 | (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) && | |
3401 | (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) { | |
3402 | ssl->sid_ctx_length = ctx->sid_ctx_length; | |
3403 | memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx)); | |
3404 | } | |
3405 | ||
16203f7b | 3406 | SSL_CTX_up_ref(ctx); |
e0e920b1 | 3407 | SSL_CTX_free(ssl->ctx); /* decrement reference count */ |
0f113f3e MC |
3408 | ssl->ctx = ctx; |
3409 | ||
16203f7b | 3410 | return ssl->ctx; |
0f113f3e | 3411 | } |
ed3883d2 | 3412 | |
4f43d0e7 | 3413 | int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) |
0f113f3e MC |
3414 | { |
3415 | return (X509_STORE_set_default_paths(ctx->cert_store)); | |
3416 | } | |
58964a49 | 3417 | |
d84a7b20 MC |
3418 | int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx) |
3419 | { | |
3420 | X509_LOOKUP *lookup; | |
3421 | ||
3422 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir()); | |
3423 | if (lookup == NULL) | |
3424 | return 0; | |
3425 | X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT); | |
3426 | ||
3427 | /* Clear any errors if the default directory does not exist */ | |
3428 | ERR_clear_error(); | |
3429 | ||
3430 | return 1; | |
3431 | } | |
3432 | ||
3433 | int SSL_CTX_set_default_verify_file(SSL_CTX *ctx) | |
3434 | { | |
3435 | X509_LOOKUP *lookup; | |
3436 | ||
3437 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file()); | |
3438 | if (lookup == NULL) | |
3439 | return 0; | |
3440 | ||
3441 | X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT); | |
3442 | ||
3443 | /* Clear any errors if the default file does not exist */ | |
3444 | ERR_clear_error(); | |
3445 | ||
3446 | return 1; | |
3447 | } | |
3448 | ||
303c0028 | 3449 | int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, |
0f113f3e MC |
3450 | const char *CApath) |
3451 | { | |
3452 | return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); | |
3453 | } | |
58964a49 | 3454 | |
45d87a1f | 3455 | void SSL_set_info_callback(SSL *ssl, |
0f113f3e MC |
3456 | void (*cb) (const SSL *ssl, int type, int val)) |
3457 | { | |
3458 | ssl->info_callback = cb; | |
3459 | } | |
3460 | ||
3461 | /* | |
3462 | * One compiler (Diab DCC) doesn't like argument names in returned function | |
3463 | * pointer. | |
3464 | */ | |
3465 | void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ , | |
3466 | int /* type */ , | |
3467 | int /* val */ ) { | |
3468 | return ssl->info_callback; | |
3469 | } | |
58964a49 | 3470 | |
0f113f3e MC |
3471 | void SSL_set_verify_result(SSL *ssl, long arg) |
3472 | { | |
3473 | ssl->verify_result = arg; | |
3474 | } | |
58964a49 | 3475 | |
0821bcd4 | 3476 | long SSL_get_verify_result(const SSL *ssl) |
0f113f3e MC |
3477 | { |
3478 | return (ssl->verify_result); | |
3479 | } | |
3480 | ||
d9f1c639 | 3481 | size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 3482 | { |
6b8f5d0d | 3483 | if (outlen == 0) |
858618e7 NM |
3484 | return sizeof(ssl->s3->client_random); |
3485 | if (outlen > sizeof(ssl->s3->client_random)) | |
3486 | outlen = sizeof(ssl->s3->client_random); | |
3487 | memcpy(out, ssl->s3->client_random, outlen); | |
d9f1c639 | 3488 | return outlen; |
858618e7 NM |
3489 | } |
3490 | ||
d9f1c639 | 3491 | size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 3492 | { |
6b8f5d0d | 3493 | if (outlen == 0) |
858618e7 NM |
3494 | return sizeof(ssl->s3->server_random); |
3495 | if (outlen > sizeof(ssl->s3->server_random)) | |
3496 | outlen = sizeof(ssl->s3->server_random); | |
3497 | memcpy(out, ssl->s3->server_random, outlen); | |
d9f1c639 | 3498 | return outlen; |
858618e7 NM |
3499 | } |
3500 | ||
d9f1c639 | 3501 | size_t SSL_SESSION_get_master_key(const SSL_SESSION *session, |
6b8f5d0d | 3502 | unsigned char *out, size_t outlen) |
858618e7 | 3503 | { |
6b8f5d0d MC |
3504 | if (session->master_key_length < 0) { |
3505 | /* Should never happen */ | |
3506 | return 0; | |
3507 | } | |
d9f1c639 MC |
3508 | if (outlen == 0) |
3509 | return session->master_key_length; | |
6b8f5d0d | 3510 | if (outlen > (size_t)session->master_key_length) |
858618e7 NM |
3511 | outlen = session->master_key_length; |
3512 | memcpy(out, session->master_key, outlen); | |
d9f1c639 | 3513 | return outlen; |
858618e7 NM |
3514 | } |
3515 | ||
0f113f3e MC |
3516 | int SSL_set_ex_data(SSL *s, int idx, void *arg) |
3517 | { | |
3518 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | |
3519 | } | |
3520 | ||
3521 | void *SSL_get_ex_data(const SSL *s, int idx) | |
3522 | { | |
3523 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | |
3524 | } | |
3525 | ||
0f113f3e MC |
3526 | int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) |
3527 | { | |
3528 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | |
3529 | } | |
3530 | ||
3531 | void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) | |
3532 | { | |
3533 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | |
3534 | } | |
58964a49 | 3535 | |
4f43d0e7 | 3536 | int ssl_ok(SSL *s) |
0f113f3e MC |
3537 | { |
3538 | return (1); | |
3539 | } | |
dfeab068 | 3540 | |
0821bcd4 | 3541 | X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) |
0f113f3e MC |
3542 | { |
3543 | return (ctx->cert_store); | |
3544 | } | |
413c4f45 | 3545 | |
0f113f3e MC |
3546 | void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) |
3547 | { | |
222561fe | 3548 | X509_STORE_free(ctx->cert_store); |
0f113f3e MC |
3549 | ctx->cert_store = store; |
3550 | } | |
413c4f45 | 3551 | |
0821bcd4 | 3552 | int SSL_want(const SSL *s) |
0f113f3e MC |
3553 | { |
3554 | return (s->rwstate); | |
3555 | } | |
413c4f45 | 3556 | |
0f113f3e | 3557 | /** |
4f43d0e7 BL |
3558 | * \brief Set the callback for generating temporary DH keys. |
3559 | * \param ctx the SSL context. | |
3560 | * \param dh the callback | |
3561 | */ | |
3562 | ||
bc36ee62 | 3563 | #ifndef OPENSSL_NO_DH |
0f113f3e MC |
3564 | void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, |
3565 | DH *(*dh) (SSL *ssl, int is_export, | |
3566 | int keylength)) | |
3567 | { | |
3568 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3569 | } | |
f8c3c05d | 3570 | |
0f113f3e MC |
3571 | void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export, |
3572 | int keylength)) | |
3573 | { | |
3574 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3575 | } | |
79df9d62 | 3576 | #endif |
15d21c2d | 3577 | |
ddac1974 NL |
3578 | #ifndef OPENSSL_NO_PSK |
3579 | int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) | |
0f113f3e MC |
3580 | { |
3581 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { | |
3582 | SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, | |
3583 | SSL_R_DATA_LENGTH_TOO_LONG); | |
3584 | return 0; | |
3585 | } | |
df6da24b | 3586 | OPENSSL_free(ctx->cert->psk_identity_hint); |
0f113f3e | 3587 | if (identity_hint != NULL) { |
7644a9ae | 3588 | ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 3589 | if (ctx->cert->psk_identity_hint == NULL) |
0f113f3e MC |
3590 | return 0; |
3591 | } else | |
df6da24b | 3592 | ctx->cert->psk_identity_hint = NULL; |
0f113f3e MC |
3593 | return 1; |
3594 | } | |
ddac1974 NL |
3595 | |
3596 | int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) | |
0f113f3e MC |
3597 | { |
3598 | if (s == NULL) | |
3599 | return 0; | |
3600 | ||
0f113f3e MC |
3601 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { |
3602 | SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); | |
3603 | return 0; | |
3604 | } | |
df6da24b | 3605 | OPENSSL_free(s->cert->psk_identity_hint); |
0f113f3e | 3606 | if (identity_hint != NULL) { |
7644a9ae | 3607 | s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 3608 | if (s->cert->psk_identity_hint == NULL) |
0f113f3e MC |
3609 | return 0; |
3610 | } else | |
df6da24b | 3611 | s->cert->psk_identity_hint = NULL; |
0f113f3e MC |
3612 | return 1; |
3613 | } | |
ddac1974 NL |
3614 | |
3615 | const char *SSL_get_psk_identity_hint(const SSL *s) | |
0f113f3e MC |
3616 | { |
3617 | if (s == NULL || s->session == NULL) | |
3618 | return NULL; | |
3619 | return (s->session->psk_identity_hint); | |
3620 | } | |
ddac1974 NL |
3621 | |
3622 | const char *SSL_get_psk_identity(const SSL *s) | |
0f113f3e MC |
3623 | { |
3624 | if (s == NULL || s->session == NULL) | |
3625 | return NULL; | |
3626 | return (s->session->psk_identity); | |
3627 | } | |
7806f3dd | 3628 | |
52b8dad8 | 3629 | void SSL_set_psk_client_callback(SSL *s, |
0f113f3e MC |
3630 | unsigned int (*cb) (SSL *ssl, |
3631 | const char *hint, | |
3632 | char *identity, | |
3633 | unsigned int | |
3634 | max_identity_len, | |
3635 | unsigned char *psk, | |
3636 | unsigned int | |
3637 | max_psk_len)) | |
3638 | { | |
3639 | s->psk_client_callback = cb; | |
3640 | } | |
7806f3dd NL |
3641 | |
3642 | void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, | |
0f113f3e MC |
3643 | unsigned int (*cb) (SSL *ssl, |
3644 | const char *hint, | |
3645 | char *identity, | |
3646 | unsigned int | |
3647 | max_identity_len, | |
3648 | unsigned char *psk, | |
3649 | unsigned int | |
3650 | max_psk_len)) | |
3651 | { | |
3652 | ctx->psk_client_callback = cb; | |
3653 | } | |
7806f3dd | 3654 | |
52b8dad8 | 3655 | void SSL_set_psk_server_callback(SSL *s, |
0f113f3e MC |
3656 | unsigned int (*cb) (SSL *ssl, |
3657 | const char *identity, | |
3658 | unsigned char *psk, | |
3659 | unsigned int | |
3660 | max_psk_len)) | |
3661 | { | |
3662 | s->psk_server_callback = cb; | |
3663 | } | |
7806f3dd NL |
3664 | |
3665 | void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, | |
0f113f3e MC |
3666 | unsigned int (*cb) (SSL *ssl, |
3667 | const char *identity, | |
3668 | unsigned char *psk, | |
3669 | unsigned int | |
3670 | max_psk_len)) | |
3671 | { | |
3672 | ctx->psk_server_callback = cb; | |
3673 | } | |
3674 | #endif | |
3675 | ||
3676 | void SSL_CTX_set_msg_callback(SSL_CTX *ctx, | |
3677 | void (*cb) (int write_p, int version, | |
3678 | int content_type, const void *buf, | |
3679 | size_t len, SSL *ssl, void *arg)) | |
3680 | { | |
3681 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
3682 | } | |
3683 | ||
3684 | void SSL_set_msg_callback(SSL *ssl, | |
3685 | void (*cb) (int write_p, int version, | |
3686 | int content_type, const void *buf, | |
3687 | size_t len, SSL *ssl, void *arg)) | |
3688 | { | |
3689 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
3690 | } | |
a661b653 | 3691 | |
7c2d4fee | 3692 | void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, |
0f113f3e MC |
3693 | int (*cb) (SSL *ssl, |
3694 | int | |
3695 | is_forward_secure)) | |
3696 | { | |
3697 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
3698 | (void (*)(void))cb); | |
3699 | } | |
3700 | ||
7c2d4fee | 3701 | void SSL_set_not_resumable_session_callback(SSL *ssl, |
0f113f3e MC |
3702 | int (*cb) (SSL *ssl, |
3703 | int is_forward_secure)) | |
3704 | { | |
3705 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
3706 | (void (*)(void))cb); | |
3707 | } | |
3708 | ||
3709 | /* | |
3710 | * Allocates new EVP_MD_CTX and sets pointer to it into given pointer | |
e771eea6 | 3711 | * vairable, freeing EVP_MD_CTX previously stored in that variable, if any. |
0f113f3e MC |
3712 | * If EVP_MD pointer is passed, initializes ctx with this md Returns newly |
3713 | * allocated ctx; | |
8671b898 | 3714 | */ |
b948e2c5 | 3715 | |
0f113f3e | 3716 | EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md) |
b948e2c5 | 3717 | { |
0f113f3e | 3718 | ssl_clear_hash_ctx(hash); |
bfb0641f | 3719 | *hash = EVP_MD_CTX_new(); |
5f3d93e4 | 3720 | if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) { |
bfb0641f | 3721 | EVP_MD_CTX_free(*hash); |
5f3d93e4 MC |
3722 | *hash = NULL; |
3723 | return NULL; | |
3724 | } | |
0f113f3e | 3725 | return *hash; |
b948e2c5 | 3726 | } |
0f113f3e MC |
3727 | |
3728 | void ssl_clear_hash_ctx(EVP_MD_CTX **hash) | |
b948e2c5 DSH |
3729 | { |
3730 | ||
0f113f3e | 3731 | if (*hash) |
bfb0641f | 3732 | EVP_MD_CTX_free(*hash); |
0f113f3e | 3733 | *hash = NULL; |
b948e2c5 | 3734 | } |
a661b653 | 3735 | |
48fbcbac DSH |
3736 | /* Retrieve handshake hashes */ |
3737 | int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen) | |
3738 | { | |
6e59a892 | 3739 | EVP_MD_CTX *ctx = NULL; |
28ba2541 DSH |
3740 | EVP_MD_CTX *hdgst = s->s3->handshake_dgst; |
3741 | int ret = EVP_MD_CTX_size(hdgst); | |
28ba2541 DSH |
3742 | if (ret < 0 || ret > outlen) { |
3743 | ret = 0; | |
3744 | goto err; | |
48fbcbac | 3745 | } |
bfb0641f | 3746 | ctx = EVP_MD_CTX_new(); |
6e59a892 RL |
3747 | if (ctx == NULL) { |
3748 | ret = 0; | |
3749 | goto err; | |
3750 | } | |
3751 | if (!EVP_MD_CTX_copy_ex(ctx, hdgst) | |
3752 | || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) | |
28ba2541 | 3753 | ret = 0; |
48fbcbac | 3754 | err: |
bfb0641f | 3755 | EVP_MD_CTX_free(ctx); |
48fbcbac DSH |
3756 | return ret; |
3757 | } | |
3758 | ||
b577fd0b | 3759 | int SSL_session_reused(SSL *s) |
0f113f3e MC |
3760 | { |
3761 | return s->hit; | |
3762 | } | |
08557cf2 | 3763 | |
87adf1fa | 3764 | int SSL_is_server(SSL *s) |
0f113f3e MC |
3765 | { |
3766 | return s->server; | |
3767 | } | |
87adf1fa | 3768 | |
47153c72 RS |
3769 | #if OPENSSL_API_COMPAT < 0x10100000L |
3770 | void SSL_set_debug(SSL *s, int debug) | |
3771 | { | |
3772 | /* Old function was do-nothing anyway... */ | |
3773 | (void)s; | |
3774 | (void)debug; | |
3775 | } | |
3776 | #endif | |
3777 | ||
3778 | ||
b362ccab | 3779 | void SSL_set_security_level(SSL *s, int level) |
0f113f3e MC |
3780 | { |
3781 | s->cert->sec_level = level; | |
3782 | } | |
b362ccab DSH |
3783 | |
3784 | int SSL_get_security_level(const SSL *s) | |
0f113f3e MC |
3785 | { |
3786 | return s->cert->sec_level; | |
3787 | } | |
b362ccab | 3788 | |
0f113f3e | 3789 | void SSL_set_security_callback(SSL *s, |
e4646a89 | 3790 | int (*cb) (const SSL *s, const SSL_CTX *ctx, int op, |
0f113f3e MC |
3791 | int bits, int nid, void *other, |
3792 | void *ex)) | |
3793 | { | |
3794 | s->cert->sec_cb = cb; | |
3795 | } | |
b362ccab | 3796 | |
e4646a89 | 3797 | int (*SSL_get_security_callback(const SSL *s)) (const SSL *s, const SSL_CTX *ctx, int op, |
0f113f3e MC |
3798 | int bits, int nid, |
3799 | void *other, void *ex) { | |
3800 | return s->cert->sec_cb; | |
3801 | } | |
b362ccab DSH |
3802 | |
3803 | void SSL_set0_security_ex_data(SSL *s, void *ex) | |
0f113f3e MC |
3804 | { |
3805 | s->cert->sec_ex = ex; | |
3806 | } | |
b362ccab DSH |
3807 | |
3808 | void *SSL_get0_security_ex_data(const SSL *s) | |
0f113f3e MC |
3809 | { |
3810 | return s->cert->sec_ex; | |
3811 | } | |
b362ccab DSH |
3812 | |
3813 | void SSL_CTX_set_security_level(SSL_CTX *ctx, int level) | |
0f113f3e MC |
3814 | { |
3815 | ctx->cert->sec_level = level; | |
3816 | } | |
b362ccab DSH |
3817 | |
3818 | int SSL_CTX_get_security_level(const SSL_CTX *ctx) | |
0f113f3e MC |
3819 | { |
3820 | return ctx->cert->sec_level; | |
3821 | } | |
b362ccab | 3822 | |
0f113f3e | 3823 | void SSL_CTX_set_security_callback(SSL_CTX *ctx, |
e4646a89 | 3824 | int (*cb) (const SSL *s, const SSL_CTX *ctx, int op, |
0f113f3e MC |
3825 | int bits, int nid, void *other, |
3826 | void *ex)) | |
3827 | { | |
3828 | ctx->cert->sec_cb = cb; | |
3829 | } | |
b362ccab | 3830 | |
e4646a89 KR |
3831 | int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s, |
3832 | const SSL_CTX *ctx, | |
0f113f3e MC |
3833 | int op, int bits, |
3834 | int nid, | |
3835 | void *other, | |
3836 | void *ex) { | |
3837 | return ctx->cert->sec_cb; | |
3838 | } | |
b362ccab DSH |
3839 | |
3840 | void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex) | |
0f113f3e MC |
3841 | { |
3842 | ctx->cert->sec_ex = ex; | |
3843 | } | |
b362ccab DSH |
3844 | |
3845 | void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx) | |
0f113f3e MC |
3846 | { |
3847 | return ctx->cert->sec_ex; | |
3848 | } | |
b362ccab | 3849 | |
8106cb8b VD |
3850 | |
3851 | /* | |
3852 | * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that | |
3853 | * can return unsigned long, instead of the generic long return value from the | |
3854 | * control interface. | |
3855 | */ | |
3856 | unsigned long SSL_CTX_get_options(const SSL_CTX *ctx) | |
3857 | { | |
3858 | return ctx->options; | |
3859 | } | |
3860 | unsigned long SSL_get_options(const SSL* s) | |
3861 | { | |
3862 | return s->options; | |
3863 | } | |
3864 | unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op) | |
3865 | { | |
3866 | return ctx->options |= op; | |
3867 | } | |
3868 | unsigned long SSL_set_options(SSL *s, unsigned long op) | |
3869 | { | |
3870 | return s->options |= op; | |
3871 | } | |
3872 | unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op) | |
3873 | { | |
3874 | return ctx->options &= ~op; | |
3875 | } | |
3876 | unsigned long SSL_clear_options(SSL *s, unsigned long op) | |
3877 | { | |
3878 | return s->options &= ~op; | |
3879 | } | |
3880 | ||
696178ed DSH |
3881 | STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s) |
3882 | { | |
3883 | return s->verified_chain; | |
3884 | } | |
3885 | ||
0f113f3e | 3886 | IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); |
ed29e82a RP |
3887 | |
3888 | #ifndef OPENSSL_NO_CT | |
3889 | ||
3890 | /* | |
3891 | * Moves SCTs from the |src| stack to the |dst| stack. | |
3892 | * The source of each SCT will be set to |origin|. | |
3893 | * If |dst| points to a NULL pointer, a new stack will be created and owned by | |
3894 | * the caller. | |
3895 | * Returns the number of SCTs moved, or a negative integer if an error occurs. | |
3896 | */ | |
3897 | static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src, sct_source_t origin) | |
3898 | { | |
3899 | int scts_moved = 0; | |
3900 | SCT *sct = NULL; | |
3901 | ||
3902 | if (*dst == NULL) { | |
3903 | *dst = sk_SCT_new_null(); | |
3904 | if (*dst == NULL) { | |
3905 | SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE); | |
3906 | goto err; | |
3907 | } | |
3908 | } | |
3909 | ||
3910 | while ((sct = sk_SCT_pop(src)) != NULL) { | |
3911 | if (SCT_set_source(sct, origin) != 1) | |
3912 | goto err; | |
3913 | ||
3914 | if (sk_SCT_push(*dst, sct) <= 0) | |
3915 | goto err; | |
3916 | scts_moved += 1; | |
3917 | } | |
3918 | ||
3919 | return scts_moved; | |
3920 | err: | |
3921 | if (sct != NULL) | |
3922 | sk_SCT_push(src, sct); /* Put the SCT back */ | |
3923 | return scts_moved; | |
3924 | } | |
3925 | ||
3926 | /* | |
3927 | * Look for data collected during ServerHello and parse if found. | |
3928 | * Return 1 on success, 0 on failure. | |
3929 | */ | |
3930 | static int ct_extract_tls_extension_scts(SSL *s) | |
3931 | { | |
3932 | int scts_extracted = 0; | |
3933 | ||
3934 | if (s->tlsext_scts != NULL) { | |
3935 | const unsigned char *p = s->tlsext_scts; | |
3936 | STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->tlsext_scts_len); | |
3937 | ||
3938 | scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION); | |
3939 | ||
3940 | SCT_LIST_free(scts); | |
3941 | } | |
3942 | ||
3943 | return scts_extracted; | |
3944 | } | |
3945 | ||
3946 | /* | |
3947 | * Checks for an OCSP response and then attempts to extract any SCTs found if it | |
3948 | * contains an SCT X509 extension. They will be stored in |s->scts|. | |
3949 | * Returns: | |
3950 | * - The number of SCTs extracted, assuming an OCSP response exists. | |
3951 | * - 0 if no OCSP response exists or it contains no SCTs. | |
3952 | * - A negative integer if an error occurs. | |
3953 | */ | |
3954 | static int ct_extract_ocsp_response_scts(SSL *s) | |
3955 | { | |
3e41ac35 | 3956 | #ifndef OPENSSL_NO_OCSP |
ed29e82a RP |
3957 | int scts_extracted = 0; |
3958 | const unsigned char *p; | |
3959 | OCSP_BASICRESP *br = NULL; | |
3960 | OCSP_RESPONSE *rsp = NULL; | |
3961 | STACK_OF(SCT) *scts = NULL; | |
3962 | int i; | |
3963 | ||
3964 | if (s->tlsext_ocsp_resp == NULL || s->tlsext_ocsp_resplen == 0) | |
3965 | goto err; | |
3966 | ||
3967 | p = s->tlsext_ocsp_resp; | |
3968 | rsp = d2i_OCSP_RESPONSE(NULL, &p, s->tlsext_ocsp_resplen); | |
3969 | if (rsp == NULL) | |
3970 | goto err; | |
3971 | ||
3972 | br = OCSP_response_get1_basic(rsp); | |
3973 | if (br == NULL) | |
3974 | goto err; | |
3975 | ||
3976 | for (i = 0; i < OCSP_resp_count(br); ++i) { | |
3977 | OCSP_SINGLERESP *single = OCSP_resp_get0(br, i); | |
3978 | ||
3979 | if (single == NULL) | |
3980 | continue; | |
3981 | ||
3982 | scts = OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL); | |
3983 | scts_extracted = ct_move_scts(&s->scts, scts, | |
3984 | SCT_SOURCE_OCSP_STAPLED_RESPONSE); | |
3985 | if (scts_extracted < 0) | |
3986 | goto err; | |
3987 | } | |
3988 | err: | |
3989 | SCT_LIST_free(scts); | |
3990 | OCSP_BASICRESP_free(br); | |
3991 | OCSP_RESPONSE_free(rsp); | |
3992 | return scts_extracted; | |
3e41ac35 MC |
3993 | #else |
3994 | /* Behave as if no OCSP response exists */ | |
3995 | return 0; | |
3996 | #endif | |
ed29e82a RP |
3997 | } |
3998 | ||
3999 | /* | |
4000 | * Attempts to extract SCTs from the peer certificate. | |
4001 | * Return the number of SCTs extracted, or a negative integer if an error | |
4002 | * occurs. | |
4003 | */ | |
4004 | static int ct_extract_x509v3_extension_scts(SSL *s) | |
4005 | { | |
4006 | int scts_extracted = 0; | |
3f3c7d26 | 4007 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
ed29e82a RP |
4008 | |
4009 | if (cert != NULL) { | |
4010 | STACK_OF(SCT) *scts = | |
4011 | X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL); | |
4012 | ||
4013 | scts_extracted = | |
4014 | ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION); | |
4015 | ||
4016 | SCT_LIST_free(scts); | |
4017 | } | |
4018 | ||
4019 | return scts_extracted; | |
4020 | } | |
4021 | ||
4022 | /* | |
4023 | * Attempts to find all received SCTs by checking TLS extensions, the OCSP | |
4024 | * response (if it exists) and X509v3 extensions in the certificate. | |
4025 | * Returns NULL if an error occurs. | |
4026 | */ | |
4027 | const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s) | |
4028 | { | |
4029 | if (!s->scts_parsed) { | |
4030 | if (ct_extract_tls_extension_scts(s) < 0 || | |
4031 | ct_extract_ocsp_response_scts(s) < 0 || | |
4032 | ct_extract_x509v3_extension_scts(s) < 0) | |
4033 | goto err; | |
4034 | ||
4035 | s->scts_parsed = 1; | |
4036 | } | |
4037 | return s->scts; | |
4038 | err: | |
4039 | return NULL; | |
4040 | } | |
4041 | ||
4042 | int SSL_set_ct_validation_callback(SSL *s, ct_validation_cb callback, void *arg) | |
4043 | { | |
4044 | int ret = 0; | |
4045 | ||
4046 | /* | |
4047 | * Since code exists that uses the custom extension handler for CT, look | |
4048 | * for this and throw an error if they have already registered to use CT. | |
4049 | */ | |
4050 | if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx, | |
4051 | TLSEXT_TYPE_signed_certificate_timestamp)) { | |
4052 | SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK, | |
4053 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
4054 | goto err; | |
4055 | } | |
4056 | ||
4057 | s->ct_validation_callback = callback; | |
4058 | s->ct_validation_callback_arg = arg; | |
4059 | ||
4060 | if (callback != NULL) { | |
4061 | /* If we are validating CT, then we MUST accept SCTs served via OCSP */ | |
4062 | if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp)) | |
4063 | goto err; | |
4064 | } | |
4065 | ||
4066 | ret = 1; | |
4067 | err: | |
4068 | return ret; | |
4069 | } | |
4070 | ||
4071 | int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx, ct_validation_cb callback, | |
4072 | void *arg) | |
4073 | { | |
4074 | int ret = 0; | |
4075 | ||
4076 | /* | |
4077 | * Since code exists that uses the custom extension handler for CT, look for | |
4078 | * this and throw an error if they have already registered to use CT. | |
4079 | */ | |
4080 | if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx, | |
4081 | TLSEXT_TYPE_signed_certificate_timestamp)) { | |
4082 | SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK, | |
4083 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
4084 | goto err; | |
4085 | } | |
4086 | ||
4087 | ctx->ct_validation_callback = callback; | |
4088 | ctx->ct_validation_callback_arg = arg; | |
4089 | ret = 1; | |
4090 | err: | |
4091 | return ret; | |
4092 | } | |
4093 | ||
4094 | ct_validation_cb SSL_get_ct_validation_callback(const SSL *s) | |
4095 | { | |
4096 | return s->ct_validation_callback; | |
4097 | } | |
4098 | ||
4099 | ct_validation_cb SSL_CTX_get_ct_validation_callback(const SSL_CTX *ctx) | |
4100 | { | |
4101 | return ctx->ct_validation_callback; | |
4102 | } | |
4103 | ||
4d482ee2 | 4104 | int ssl_validate_ct(SSL *s) |
ed29e82a RP |
4105 | { |
4106 | int ret = 0; | |
3f3c7d26 | 4107 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
ed29e82a RP |
4108 | X509 *issuer = NULL; |
4109 | CT_POLICY_EVAL_CTX *ctx = NULL; | |
4110 | const STACK_OF(SCT) *scts; | |
4111 | ||
4112 | /* If no callback is set, attempt no validation - just return success */ | |
4113 | if (s->ct_validation_callback == NULL) | |
4114 | return 1; | |
4115 | ||
4116 | if (cert == NULL) { | |
4117 | SSLerr(SSL_F_SSL_VALIDATE_CT, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
4118 | goto end; | |
4119 | } | |
4120 | ||
4121 | if (s->verified_chain != NULL && sk_X509_num(s->verified_chain) > 1) | |
4122 | issuer = sk_X509_value(s->verified_chain, 1); | |
4123 | ||
4124 | ctx = CT_POLICY_EVAL_CTX_new(); | |
4125 | if (ctx == NULL) { | |
4126 | SSLerr(SSL_F_SSL_VALIDATE_CT, ERR_R_MALLOC_FAILURE); | |
4127 | goto end; | |
4128 | } | |
4129 | ||
4130 | CT_POLICY_EVAL_CTX_set0_cert(ctx, cert); | |
4131 | CT_POLICY_EVAL_CTX_set0_issuer(ctx, issuer); | |
4132 | CT_POLICY_EVAL_CTX_set0_log_store(ctx, s->ctx->ctlog_store); | |
4133 | ||
4134 | scts = SSL_get0_peer_scts(s); | |
4135 | ||
4136 | if (SCT_LIST_validate(scts, ctx) != 1) { | |
4137 | SSLerr(SSL_F_SSL_VALIDATE_CT, SSL_R_SCT_VERIFICATION_FAILED); | |
4138 | goto end; | |
4139 | } | |
4140 | ||
4141 | ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg); | |
4142 | if (ret < 0) | |
4143 | ret = 0; /* This function returns 0 on failure */ | |
4144 | ||
4145 | end: | |
4146 | CT_POLICY_EVAL_CTX_free(ctx); | |
4147 | return ret; | |
4148 | } | |
4149 | ||
4150 | int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx) | |
4151 | { | |
328f36c5 | 4152 | return CTLOG_STORE_load_default_file(ctx->ctlog_store); |
ed29e82a RP |
4153 | } |
4154 | ||
4155 | int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path) | |
4156 | { | |
4157 | return CTLOG_STORE_load_file(ctx->ctlog_store, path); | |
4158 | } | |
4159 | ||
8359b57f RP |
4160 | void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE *logs) |
4161 | { | |
4162 | CTLOG_STORE_free(ctx->ctlog_store); | |
4163 | ctx->ctlog_store = logs; | |
4164 | } | |
4165 | ||
4166 | const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx) | |
4167 | { | |
4168 | return ctx->ctlog_store; | |
4169 | } | |
4170 | ||
ed29e82a | 4171 | #endif |