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0f113f3e | 1 | /* |
846e33c7 | 2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. |
bf21446a | 3 | * |
846e33c7 RS |
4 | * Licensed under the OpenSSL license (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
bf21446a | 8 | */ |
846e33c7 | 9 | |
ea262260 BM |
10 | /* ==================================================================== |
11 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | |
0f113f3e | 12 | * ECC cipher suite support in OpenSSL originally developed by |
ea262260 BM |
13 | * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. |
14 | */ | |
ddac1974 NL |
15 | /* ==================================================================== |
16 | * Copyright 2005 Nokia. All rights reserved. | |
17 | * | |
18 | * The portions of the attached software ("Contribution") is developed by | |
19 | * Nokia Corporation and is licensed pursuant to the OpenSSL open source | |
20 | * license. | |
21 | * | |
22 | * The Contribution, originally written by Mika Kousa and Pasi Eronen of | |
23 | * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites | |
24 | * support (see RFC 4279) to OpenSSL. | |
25 | * | |
26 | * No patent licenses or other rights except those expressly stated in | |
27 | * the OpenSSL open source license shall be deemed granted or received | |
28 | * expressly, by implication, estoppel, or otherwise. | |
29 | * | |
30 | * No assurances are provided by Nokia that the Contribution does not | |
31 | * infringe the patent or other intellectual property rights of any third | |
32 | * party or that the license provides you with all the necessary rights | |
33 | * to make use of the Contribution. | |
34 | * | |
35 | * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN | |
36 | * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA | |
37 | * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY | |
38 | * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR | |
39 | * OTHERWISE. | |
40 | */ | |
bbb8de09 | 41 | |
463a7b8c | 42 | #include <assert.h> |
d02b48c6 | 43 | #include <stdio.h> |
7b63c0fa | 44 | #include "ssl_locl.h" |
ec577822 BM |
45 | #include <openssl/objects.h> |
46 | #include <openssl/lhash.h> | |
bb7cd4e3 | 47 | #include <openssl/x509v3.h> |
6434abbf | 48 | #include <openssl/rand.h> |
67c8e7f4 | 49 | #include <openssl/ocsp.h> |
3c27208f RS |
50 | #include <openssl/dh.h> |
51 | #include <openssl/engine.h> | |
07bbc92c | 52 | #include <openssl/async.h> |
3c27208f | 53 | #include <openssl/ct.h> |
0f113f3e | 54 | |
df2ee0e2 | 55 | const char SSL_version_str[] = OPENSSL_VERSION_TEXT; |
0f113f3e MC |
56 | |
57 | SSL3_ENC_METHOD ssl3_undef_enc_method = { | |
58 | /* | |
59 | * evil casts, but these functions are only called if there's a library | |
60 | * bug | |
61 | */ | |
d102d9df MC |
62 | (int (*)(SSL *, SSL3_RECORD *, unsigned int, int))ssl_undefined_function, |
63 | (int (*)(SSL *, SSL3_RECORD *, unsigned char *, int))ssl_undefined_function, | |
0f113f3e MC |
64 | ssl_undefined_function, |
65 | (int (*)(SSL *, unsigned char *, unsigned char *, int)) | |
66 | ssl_undefined_function, | |
67 | (int (*)(SSL *, int))ssl_undefined_function, | |
68 | (int (*)(SSL *, const char *, int, unsigned char *)) | |
69 | ssl_undefined_function, | |
70 | 0, /* finish_mac_length */ | |
0f113f3e MC |
71 | NULL, /* client_finished_label */ |
72 | 0, /* client_finished_label_len */ | |
73 | NULL, /* server_finished_label */ | |
74 | 0, /* server_finished_label_len */ | |
75 | (int (*)(int))ssl_undefined_function, | |
76 | (int (*)(SSL *, unsigned char *, size_t, const char *, | |
77 | size_t, const unsigned char *, size_t, | |
78 | int use_context))ssl_undefined_function, | |
79 | }; | |
d02b48c6 | 80 | |
07bbc92c MC |
81 | struct ssl_async_args { |
82 | SSL *s; | |
83 | void *buf; | |
84 | int num; | |
ec447924 | 85 | enum { READFUNC, WRITEFUNC, OTHERFUNC} type; |
add2f5ca | 86 | union { |
ec447924 MC |
87 | int (*func_read)(SSL *, void *, int); |
88 | int (*func_write)(SSL *, const void *, int); | |
89 | int (*func_other)(SSL *); | |
add2f5ca | 90 | } f; |
07bbc92c MC |
91 | }; |
92 | ||
919ba009 VD |
93 | static const struct { |
94 | uint8_t mtype; | |
95 | uint8_t ord; | |
96 | int nid; | |
97 | } dane_mds[] = { | |
98 | { DANETLS_MATCHING_FULL, 0, NID_undef }, | |
99 | { DANETLS_MATCHING_2256, 1, NID_sha256 }, | |
100 | { DANETLS_MATCHING_2512, 2, NID_sha512 }, | |
101 | }; | |
102 | ||
103 | static int dane_ctx_enable(struct dane_ctx_st *dctx) | |
104 | { | |
105 | const EVP_MD **mdevp; | |
106 | uint8_t *mdord; | |
107 | uint8_t mdmax = DANETLS_MATCHING_LAST; | |
108 | int n = ((int) mdmax) + 1; /* int to handle PrivMatch(255) */ | |
109 | size_t i; | |
110 | ||
111 | mdevp = OPENSSL_zalloc(n * sizeof(*mdevp)); | |
112 | mdord = OPENSSL_zalloc(n * sizeof(*mdord)); | |
113 | ||
114 | if (mdord == NULL || mdevp == NULL) { | |
b3bd3d5a | 115 | OPENSSL_free(mdord); |
919ba009 VD |
116 | OPENSSL_free(mdevp); |
117 | SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE); | |
118 | return 0; | |
119 | } | |
120 | ||
121 | /* Install default entries */ | |
122 | for (i = 0; i < OSSL_NELEM(dane_mds); ++i) { | |
123 | const EVP_MD *md; | |
124 | ||
125 | if (dane_mds[i].nid == NID_undef || | |
126 | (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL) | |
127 | continue; | |
128 | mdevp[dane_mds[i].mtype] = md; | |
129 | mdord[dane_mds[i].mtype] = dane_mds[i].ord; | |
130 | } | |
131 | ||
132 | dctx->mdevp = mdevp; | |
133 | dctx->mdord = mdord; | |
134 | dctx->mdmax = mdmax; | |
135 | ||
136 | return 1; | |
137 | } | |
138 | ||
139 | static void dane_ctx_final(struct dane_ctx_st *dctx) | |
140 | { | |
141 | OPENSSL_free(dctx->mdevp); | |
142 | dctx->mdevp = NULL; | |
143 | ||
144 | OPENSSL_free(dctx->mdord); | |
145 | dctx->mdord = NULL; | |
146 | dctx->mdmax = 0; | |
147 | } | |
148 | ||
149 | static void tlsa_free(danetls_record *t) | |
150 | { | |
151 | if (t == NULL) | |
152 | return; | |
153 | OPENSSL_free(t->data); | |
154 | EVP_PKEY_free(t->spki); | |
155 | OPENSSL_free(t); | |
156 | } | |
157 | ||
b9aec69a | 158 | static void dane_final(SSL_DANE *dane) |
919ba009 VD |
159 | { |
160 | sk_danetls_record_pop_free(dane->trecs, tlsa_free); | |
161 | dane->trecs = NULL; | |
162 | ||
163 | sk_X509_pop_free(dane->certs, X509_free); | |
164 | dane->certs = NULL; | |
165 | ||
166 | X509_free(dane->mcert); | |
167 | dane->mcert = NULL; | |
168 | dane->mtlsa = NULL; | |
169 | dane->mdpth = -1; | |
170 | dane->pdpth = -1; | |
171 | } | |
172 | ||
173 | /* | |
174 | * dane_copy - Copy dane configuration, sans verification state. | |
175 | */ | |
176 | static int ssl_dane_dup(SSL *to, SSL *from) | |
177 | { | |
178 | int num; | |
179 | int i; | |
180 | ||
181 | if (!DANETLS_ENABLED(&from->dane)) | |
182 | return 1; | |
183 | ||
184 | dane_final(&to->dane); | |
9f6b22b8 VD |
185 | to->dane.dctx = &to->ctx->dane; |
186 | to->dane.trecs = sk_danetls_record_new_null(); | |
187 | ||
188 | if (to->dane.trecs == NULL) { | |
189 | SSLerr(SSL_F_SSL_DANE_DUP, ERR_R_MALLOC_FAILURE); | |
190 | return 0; | |
191 | } | |
919ba009 VD |
192 | |
193 | num = sk_danetls_record_num(from->dane.trecs); | |
194 | for (i = 0; i < num; ++i) { | |
195 | danetls_record *t = sk_danetls_record_value(from->dane.trecs, i); | |
9f6b22b8 | 196 | |
919ba009 VD |
197 | if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype, |
198 | t->data, t->dlen) <= 0) | |
199 | return 0; | |
200 | } | |
201 | return 1; | |
202 | } | |
203 | ||
204 | static int dane_mtype_set( | |
205 | struct dane_ctx_st *dctx, | |
206 | const EVP_MD *md, | |
207 | uint8_t mtype, | |
208 | uint8_t ord) | |
209 | { | |
210 | int i; | |
211 | ||
212 | if (mtype == DANETLS_MATCHING_FULL && md != NULL) { | |
213 | SSLerr(SSL_F_DANE_MTYPE_SET, | |
214 | SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL); | |
215 | return 0; | |
216 | } | |
217 | ||
218 | if (mtype > dctx->mdmax) { | |
219 | const EVP_MD **mdevp; | |
220 | uint8_t *mdord; | |
221 | int n = ((int) mtype) + 1; | |
222 | ||
223 | mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp)); | |
224 | if (mdevp == NULL) { | |
225 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
226 | return -1; | |
227 | } | |
228 | dctx->mdevp = mdevp; | |
229 | ||
230 | mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord)); | |
231 | if (mdord == NULL) { | |
232 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
233 | return -1; | |
234 | } | |
235 | dctx->mdord = mdord; | |
236 | ||
237 | /* Zero-fill any gaps */ | |
238 | for (i = dctx->mdmax+1; i < mtype; ++i) { | |
239 | mdevp[i] = NULL; | |
240 | mdord[i] = 0; | |
241 | } | |
242 | ||
243 | dctx->mdmax = mtype; | |
244 | } | |
245 | ||
246 | dctx->mdevp[mtype] = md; | |
247 | /* Coerce ordinal of disabled matching types to 0 */ | |
248 | dctx->mdord[mtype] = (md == NULL) ? 0 : ord; | |
249 | ||
250 | return 1; | |
251 | } | |
252 | ||
b9aec69a | 253 | static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype) |
919ba009 VD |
254 | { |
255 | if (mtype > dane->dctx->mdmax) | |
256 | return NULL; | |
257 | return dane->dctx->mdevp[mtype]; | |
258 | } | |
259 | ||
260 | static int dane_tlsa_add( | |
b9aec69a | 261 | SSL_DANE *dane, |
919ba009 VD |
262 | uint8_t usage, |
263 | uint8_t selector, | |
264 | uint8_t mtype, | |
265 | unsigned char *data, | |
266 | size_t dlen) | |
267 | { | |
268 | danetls_record *t; | |
269 | const EVP_MD *md = NULL; | |
270 | int ilen = (int)dlen; | |
271 | int i; | |
9f6b22b8 | 272 | int num; |
919ba009 VD |
273 | |
274 | if (dane->trecs == NULL) { | |
275 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED); | |
276 | return -1; | |
277 | } | |
278 | ||
279 | if (ilen < 0 || dlen != (size_t)ilen) { | |
280 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH); | |
281 | return 0; | |
282 | } | |
283 | ||
284 | if (usage > DANETLS_USAGE_LAST) { | |
285 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE); | |
286 | return 0; | |
287 | } | |
288 | ||
289 | if (selector > DANETLS_SELECTOR_LAST) { | |
290 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR); | |
291 | return 0; | |
292 | } | |
293 | ||
294 | if (mtype != DANETLS_MATCHING_FULL) { | |
295 | md = tlsa_md_get(dane, mtype); | |
296 | if (md == NULL) { | |
297 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE); | |
298 | return 0; | |
299 | } | |
300 | } | |
301 | ||
302 | if (md != NULL && dlen != (size_t)EVP_MD_size(md)) { | |
303 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH); | |
304 | return 0; | |
305 | } | |
306 | if (!data) { | |
307 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA); | |
308 | return 0; | |
309 | } | |
310 | ||
311 | if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) { | |
312 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
313 | return -1; | |
314 | } | |
315 | ||
316 | t->usage = usage; | |
317 | t->selector = selector; | |
318 | t->mtype = mtype; | |
319 | t->data = OPENSSL_malloc(ilen); | |
320 | if (t->data == NULL) { | |
321 | tlsa_free(t); | |
322 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
323 | return -1; | |
324 | } | |
325 | memcpy(t->data, data, ilen); | |
326 | t->dlen = ilen; | |
327 | ||
328 | /* Validate and cache full certificate or public key */ | |
329 | if (mtype == DANETLS_MATCHING_FULL) { | |
330 | const unsigned char *p = data; | |
331 | X509 *cert = NULL; | |
332 | EVP_PKEY *pkey = NULL; | |
333 | ||
334 | switch (selector) { | |
335 | case DANETLS_SELECTOR_CERT: | |
336 | if (!d2i_X509(&cert, &p, dlen) || p < data || | |
337 | dlen != (size_t)(p - data)) { | |
338 | tlsa_free(t); | |
339 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
340 | return 0; | |
341 | } | |
342 | if (X509_get0_pubkey(cert) == NULL) { | |
343 | tlsa_free(t); | |
344 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
345 | return 0; | |
346 | } | |
347 | ||
348 | if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) { | |
349 | X509_free(cert); | |
350 | break; | |
351 | } | |
352 | ||
353 | /* | |
354 | * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA | |
355 | * records that contain full certificates of trust-anchors that are | |
356 | * not present in the wire chain. For usage PKIX-TA(0), we augment | |
357 | * the chain with untrusted Full(0) certificates from DNS, in case | |
358 | * they are missing from the chain. | |
359 | */ | |
360 | if ((dane->certs == NULL && | |
361 | (dane->certs = sk_X509_new_null()) == NULL) || | |
362 | !sk_X509_push(dane->certs, cert)) { | |
363 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
364 | X509_free(cert); | |
365 | tlsa_free(t); | |
366 | return -1; | |
367 | } | |
368 | break; | |
369 | ||
370 | case DANETLS_SELECTOR_SPKI: | |
371 | if (!d2i_PUBKEY(&pkey, &p, dlen) || p < data || | |
372 | dlen != (size_t)(p - data)) { | |
373 | tlsa_free(t); | |
374 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY); | |
375 | return 0; | |
376 | } | |
377 | ||
378 | /* | |
379 | * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA | |
380 | * records that contain full bare keys of trust-anchors that are | |
381 | * not present in the wire chain. | |
382 | */ | |
383 | if (usage == DANETLS_USAGE_DANE_TA) | |
384 | t->spki = pkey; | |
385 | else | |
386 | EVP_PKEY_free(pkey); | |
387 | break; | |
388 | } | |
389 | } | |
390 | ||
391 | /*- | |
392 | * Find the right insertion point for the new record. | |
393 | * | |
394 | * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that | |
395 | * they can be processed first, as they require no chain building, and no | |
396 | * expiration or hostname checks. Because DANE-EE(3) is numerically | |
397 | * largest, this is accomplished via descending sort by "usage". | |
398 | * | |
399 | * We also sort in descending order by matching ordinal to simplify | |
400 | * the implementation of digest agility in the verification code. | |
401 | * | |
402 | * The choice of order for the selector is not significant, so we | |
403 | * use the same descending order for consistency. | |
404 | */ | |
9f6b22b8 VD |
405 | num = sk_danetls_record_num(dane->trecs); |
406 | for (i = 0; i < num; ++i) { | |
919ba009 | 407 | danetls_record *rec = sk_danetls_record_value(dane->trecs, i); |
9f6b22b8 | 408 | |
919ba009 VD |
409 | if (rec->usage > usage) |
410 | continue; | |
411 | if (rec->usage < usage) | |
412 | break; | |
413 | if (rec->selector > selector) | |
414 | continue; | |
415 | if (rec->selector < selector) | |
416 | break; | |
417 | if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype]) | |
418 | continue; | |
419 | break; | |
420 | } | |
421 | ||
422 | if (!sk_danetls_record_insert(dane->trecs, t, i)) { | |
423 | tlsa_free(t); | |
424 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
425 | return -1; | |
426 | } | |
427 | dane->umask |= DANETLS_USAGE_BIT(usage); | |
428 | ||
429 | return 1; | |
430 | } | |
431 | ||
d31fb0b5 RS |
432 | static void clear_ciphers(SSL *s) |
433 | { | |
434 | /* clear the current cipher */ | |
435 | ssl_clear_cipher_ctx(s); | |
436 | ssl_clear_hash_ctx(&s->read_hash); | |
437 | ssl_clear_hash_ctx(&s->write_hash); | |
438 | } | |
439 | ||
4f43d0e7 | 440 | int SSL_clear(SSL *s) |
0f113f3e | 441 | { |
0f113f3e MC |
442 | if (s->method == NULL) { |
443 | SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED); | |
444 | return (0); | |
445 | } | |
d02b48c6 | 446 | |
0f113f3e MC |
447 | if (ssl_clear_bad_session(s)) { |
448 | SSL_SESSION_free(s->session); | |
449 | s->session = NULL; | |
450 | } | |
d62bfb39 | 451 | |
0f113f3e MC |
452 | s->error = 0; |
453 | s->hit = 0; | |
454 | s->shutdown = 0; | |
d02b48c6 | 455 | |
0f113f3e MC |
456 | if (s->renegotiate) { |
457 | SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR); | |
458 | return 0; | |
459 | } | |
d02b48c6 | 460 | |
fe3a3291 | 461 | ossl_statem_clear(s); |
413c4f45 | 462 | |
0f113f3e MC |
463 | s->version = s->method->version; |
464 | s->client_version = s->version; | |
465 | s->rwstate = SSL_NOTHING; | |
d02b48c6 | 466 | |
25aaa98a RS |
467 | BUF_MEM_free(s->init_buf); |
468 | s->init_buf = NULL; | |
d31fb0b5 | 469 | clear_ciphers(s); |
0f113f3e | 470 | s->first_packet = 0; |
d02b48c6 | 471 | |
919ba009 VD |
472 | /* Reset DANE verification result state */ |
473 | s->dane.mdpth = -1; | |
474 | s->dane.pdpth = -1; | |
475 | X509_free(s->dane.mcert); | |
476 | s->dane.mcert = NULL; | |
477 | s->dane.mtlsa = NULL; | |
478 | ||
479 | /* Clear the verification result peername */ | |
480 | X509_VERIFY_PARAM_move_peername(s->param, NULL); | |
481 | ||
0f113f3e MC |
482 | /* |
483 | * Check to see if we were changed into a different method, if so, revert | |
484 | * back if we are not doing session-id reuse. | |
485 | */ | |
024f543c | 486 | if (!ossl_statem_get_in_handshake(s) && (s->session == NULL) |
0f113f3e MC |
487 | && (s->method != s->ctx->method)) { |
488 | s->method->ssl_free(s); | |
489 | s->method = s->ctx->method; | |
490 | if (!s->method->ssl_new(s)) | |
491 | return (0); | |
492 | } else | |
0f113f3e | 493 | s->method->ssl_clear(s); |
33d23b87 | 494 | |
af9752e5 | 495 | RECORD_LAYER_clear(&s->rlayer); |
33d23b87 | 496 | |
0f113f3e MC |
497 | return (1); |
498 | } | |
d02b48c6 | 499 | |
4f43d0e7 | 500 | /** Used to change an SSL_CTXs default SSL method type */ |
0f113f3e MC |
501 | int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) |
502 | { | |
503 | STACK_OF(SSL_CIPHER) *sk; | |
504 | ||
505 | ctx->method = meth; | |
506 | ||
507 | sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list), | |
508 | &(ctx->cipher_list_by_id), | |
509 | SSL_DEFAULT_CIPHER_LIST, ctx->cert); | |
510 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { | |
511 | SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, | |
512 | SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); | |
513 | return (0); | |
514 | } | |
515 | return (1); | |
516 | } | |
d02b48c6 | 517 | |
4f43d0e7 | 518 | SSL *SSL_new(SSL_CTX *ctx) |
0f113f3e MC |
519 | { |
520 | SSL *s; | |
521 | ||
522 | if (ctx == NULL) { | |
523 | SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX); | |
524 | return (NULL); | |
525 | } | |
526 | if (ctx->method == NULL) { | |
527 | SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); | |
528 | return (NULL); | |
529 | } | |
530 | ||
b51bce94 | 531 | s = OPENSSL_zalloc(sizeof(*s)); |
0f113f3e MC |
532 | if (s == NULL) |
533 | goto err; | |
0f113f3e | 534 | |
16203f7b AG |
535 | s->lock = CRYPTO_THREAD_lock_new(); |
536 | if (s->lock == NULL) { | |
537 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); | |
538 | OPENSSL_free(s); | |
539 | return NULL; | |
540 | } | |
541 | ||
c036e210 | 542 | RECORD_LAYER_init(&s->rlayer, s); |
28d59af8 | 543 | |
0f113f3e | 544 | s->options = ctx->options; |
7946ab33 KR |
545 | s->min_proto_version = ctx->min_proto_version; |
546 | s->max_proto_version = ctx->max_proto_version; | |
0f113f3e MC |
547 | s->mode = ctx->mode; |
548 | s->max_cert_list = ctx->max_cert_list; | |
0e04674e | 549 | s->references = 1; |
0f113f3e | 550 | |
2c382349 KR |
551 | /* |
552 | * Earlier library versions used to copy the pointer to the CERT, not | |
553 | * its contents; only when setting new parameters for the per-SSL | |
554 | * copy, ssl_cert_new would be called (and the direct reference to | |
555 | * the per-SSL_CTX settings would be lost, but those still were | |
556 | * indirectly accessed for various purposes, and for that reason they | |
557 | * used to be known as s->ctx->default_cert). Now we don't look at the | |
558 | * SSL_CTX's CERT after having duplicated it once. | |
559 | */ | |
560 | s->cert = ssl_cert_dup(ctx->cert); | |
561 | if (s->cert == NULL) | |
562 | goto err; | |
0f113f3e | 563 | |
52e1d7b1 | 564 | RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead); |
0f113f3e MC |
565 | s->msg_callback = ctx->msg_callback; |
566 | s->msg_callback_arg = ctx->msg_callback_arg; | |
567 | s->verify_mode = ctx->verify_mode; | |
568 | s->not_resumable_session_cb = ctx->not_resumable_session_cb; | |
0f113f3e MC |
569 | s->sid_ctx_length = ctx->sid_ctx_length; |
570 | OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); | |
571 | memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); | |
572 | s->verify_callback = ctx->default_verify_callback; | |
573 | s->generate_session_id = ctx->generate_session_id; | |
574 | ||
575 | s->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 576 | if (s->param == NULL) |
0f113f3e MC |
577 | goto err; |
578 | X509_VERIFY_PARAM_inherit(s->param, ctx->param); | |
0f113f3e MC |
579 | s->quiet_shutdown = ctx->quiet_shutdown; |
580 | s->max_send_fragment = ctx->max_send_fragment; | |
d102d9df MC |
581 | s->split_send_fragment = ctx->split_send_fragment; |
582 | s->max_pipelines = ctx->max_pipelines; | |
94777c9c MC |
583 | if (s->max_pipelines > 1) |
584 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
dad78fb1 MC |
585 | if (ctx->default_read_buf_len > 0) |
586 | SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len); | |
bf21446a | 587 | |
16203f7b | 588 | SSL_CTX_up_ref(ctx); |
0f113f3e | 589 | s->ctx = ctx; |
0f113f3e MC |
590 | s->tlsext_debug_cb = 0; |
591 | s->tlsext_debug_arg = NULL; | |
592 | s->tlsext_ticket_expected = 0; | |
ba261f71 | 593 | s->tlsext_status_type = ctx->tlsext_status_type; |
0f113f3e MC |
594 | s->tlsext_status_expected = 0; |
595 | s->tlsext_ocsp_ids = NULL; | |
596 | s->tlsext_ocsp_exts = NULL; | |
597 | s->tlsext_ocsp_resp = NULL; | |
598 | s->tlsext_ocsp_resplen = -1; | |
16203f7b | 599 | SSL_CTX_up_ref(ctx); |
0f113f3e MC |
600 | s->initial_ctx = ctx; |
601 | # ifndef OPENSSL_NO_EC | |
602 | if (ctx->tlsext_ecpointformatlist) { | |
603 | s->tlsext_ecpointformatlist = | |
7644a9ae RS |
604 | OPENSSL_memdup(ctx->tlsext_ecpointformatlist, |
605 | ctx->tlsext_ecpointformatlist_length); | |
0f113f3e MC |
606 | if (!s->tlsext_ecpointformatlist) |
607 | goto err; | |
608 | s->tlsext_ecpointformatlist_length = | |
609 | ctx->tlsext_ecpointformatlist_length; | |
610 | } | |
611 | if (ctx->tlsext_ellipticcurvelist) { | |
612 | s->tlsext_ellipticcurvelist = | |
7644a9ae RS |
613 | OPENSSL_memdup(ctx->tlsext_ellipticcurvelist, |
614 | ctx->tlsext_ellipticcurvelist_length); | |
0f113f3e MC |
615 | if (!s->tlsext_ellipticcurvelist) |
616 | goto err; | |
617 | s->tlsext_ellipticcurvelist_length = | |
618 | ctx->tlsext_ellipticcurvelist_length; | |
619 | } | |
620 | # endif | |
bf48836c | 621 | # ifndef OPENSSL_NO_NEXTPROTONEG |
0f113f3e | 622 | s->next_proto_negotiated = NULL; |
ee2ffc27 | 623 | # endif |
6f017a8f | 624 | |
0f113f3e MC |
625 | if (s->ctx->alpn_client_proto_list) { |
626 | s->alpn_client_proto_list = | |
627 | OPENSSL_malloc(s->ctx->alpn_client_proto_list_len); | |
628 | if (s->alpn_client_proto_list == NULL) | |
629 | goto err; | |
630 | memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list, | |
631 | s->ctx->alpn_client_proto_list_len); | |
632 | s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len; | |
633 | } | |
d02b48c6 | 634 | |
696178ed | 635 | s->verified_chain = NULL; |
0f113f3e | 636 | s->verify_result = X509_V_OK; |
d02b48c6 | 637 | |
a974e64a MC |
638 | s->default_passwd_callback = ctx->default_passwd_callback; |
639 | s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata; | |
640 | ||
0f113f3e | 641 | s->method = ctx->method; |
d02b48c6 | 642 | |
0f113f3e MC |
643 | if (!s->method->ssl_new(s)) |
644 | goto err; | |
d02b48c6 | 645 | |
0f113f3e | 646 | s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1; |
bf21446a | 647 | |
61986d32 | 648 | if (!SSL_clear(s)) |
69f68237 | 649 | goto err; |
58964a49 | 650 | |
25a807bc F |
651 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data)) |
652 | goto err; | |
58964a49 | 653 | |
ddac1974 | 654 | #ifndef OPENSSL_NO_PSK |
0f113f3e MC |
655 | s->psk_client_callback = ctx->psk_client_callback; |
656 | s->psk_server_callback = ctx->psk_server_callback; | |
ddac1974 NL |
657 | #endif |
658 | ||
07bbc92c MC |
659 | s->job = NULL; |
660 | ||
ed29e82a RP |
661 | #ifndef OPENSSL_NO_CT |
662 | if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback, | |
663 | ctx->ct_validation_callback_arg)) | |
664 | goto err; | |
665 | #endif | |
666 | ||
16203f7b | 667 | return s; |
0f113f3e | 668 | err: |
62adbcee | 669 | SSL_free(s); |
0f113f3e | 670 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); |
16203f7b | 671 | return NULL; |
0f113f3e | 672 | } |
d02b48c6 | 673 | |
e417070c RS |
674 | int SSL_is_dtls(const SSL *s) |
675 | { | |
676 | return SSL_IS_DTLS(s) ? 1 : 0; | |
677 | } | |
678 | ||
c5ebfcab | 679 | int SSL_up_ref(SSL *s) |
a18a31e4 | 680 | { |
16203f7b | 681 | int i; |
c5ebfcab F |
682 | |
683 | if (CRYPTO_atomic_add(&s->references, 1, &i, s->lock) <= 0) | |
684 | return 0; | |
685 | ||
686 | REF_PRINT_COUNT("SSL", s); | |
687 | REF_ASSERT_ISNT(i < 2); | |
688 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
689 | } |
690 | ||
0f113f3e MC |
691 | int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, |
692 | unsigned int sid_ctx_len) | |
693 | { | |
694 | if (sid_ctx_len > sizeof ctx->sid_ctx) { | |
695 | SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT, | |
696 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
697 | return 0; | |
698 | } | |
699 | ctx->sid_ctx_length = sid_ctx_len; | |
700 | memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); | |
4eb77b26 BM |
701 | |
702 | return 1; | |
0f113f3e | 703 | } |
4eb77b26 | 704 | |
0f113f3e MC |
705 | int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, |
706 | unsigned int sid_ctx_len) | |
707 | { | |
708 | if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { | |
709 | SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT, | |
710 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
711 | return 0; | |
712 | } | |
713 | ssl->sid_ctx_length = sid_ctx_len; | |
714 | memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); | |
b4cadc6e BL |
715 | |
716 | return 1; | |
0f113f3e | 717 | } |
b4cadc6e | 718 | |
dc644fe2 | 719 | int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) |
0f113f3e | 720 | { |
16203f7b | 721 | CRYPTO_THREAD_write_lock(ctx->lock); |
0f113f3e | 722 | ctx->generate_session_id = cb; |
16203f7b | 723 | CRYPTO_THREAD_unlock(ctx->lock); |
0f113f3e MC |
724 | return 1; |
725 | } | |
dc644fe2 GT |
726 | |
727 | int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) | |
0f113f3e | 728 | { |
16203f7b | 729 | CRYPTO_THREAD_write_lock(ssl->lock); |
0f113f3e | 730 | ssl->generate_session_id = cb; |
16203f7b | 731 | CRYPTO_THREAD_unlock(ssl->lock); |
0f113f3e MC |
732 | return 1; |
733 | } | |
dc644fe2 | 734 | |
f85c9904 | 735 | int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, |
0f113f3e MC |
736 | unsigned int id_len) |
737 | { | |
738 | /* | |
739 | * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how | |
740 | * we can "construct" a session to give us the desired check - ie. to | |
741 | * find if there's a session in the hash table that would conflict with | |
742 | * any new session built out of this id/id_len and the ssl_version in use | |
743 | * by this SSL. | |
744 | */ | |
745 | SSL_SESSION r, *p; | |
746 | ||
747 | if (id_len > sizeof r.session_id) | |
748 | return 0; | |
749 | ||
750 | r.ssl_version = ssl->version; | |
751 | r.session_id_length = id_len; | |
752 | memcpy(r.session_id, id, id_len); | |
753 | ||
e2bb9b9b TS |
754 | CRYPTO_THREAD_read_lock(ssl->session_ctx->lock); |
755 | p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r); | |
756 | CRYPTO_THREAD_unlock(ssl->session_ctx->lock); | |
0f113f3e MC |
757 | return (p != NULL); |
758 | } | |
dc644fe2 | 759 | |
bb7cd4e3 | 760 | int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) |
0f113f3e MC |
761 | { |
762 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
763 | } | |
bb7cd4e3 DSH |
764 | |
765 | int SSL_set_purpose(SSL *s, int purpose) | |
0f113f3e MC |
766 | { |
767 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
768 | } | |
926a56bf | 769 | |
bb7cd4e3 | 770 | int SSL_CTX_set_trust(SSL_CTX *s, int trust) |
0f113f3e MC |
771 | { |
772 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
773 | } | |
bb7cd4e3 DSH |
774 | |
775 | int SSL_set_trust(SSL *s, int trust) | |
0f113f3e MC |
776 | { |
777 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
778 | } | |
bb7cd4e3 | 779 | |
919ba009 VD |
780 | int SSL_set1_host(SSL *s, const char *hostname) |
781 | { | |
782 | return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); | |
783 | } | |
784 | ||
785 | int SSL_add1_host(SSL *s, const char *hostname) | |
786 | { | |
787 | return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0); | |
788 | } | |
789 | ||
790 | void SSL_set_hostflags(SSL *s, unsigned int flags) | |
791 | { | |
792 | X509_VERIFY_PARAM_set_hostflags(s->param, flags); | |
793 | } | |
794 | ||
795 | const char *SSL_get0_peername(SSL *s) | |
796 | { | |
797 | return X509_VERIFY_PARAM_get0_peername(s->param); | |
798 | } | |
799 | ||
800 | int SSL_CTX_dane_enable(SSL_CTX *ctx) | |
801 | { | |
802 | return dane_ctx_enable(&ctx->dane); | |
803 | } | |
804 | ||
805 | int SSL_dane_enable(SSL *s, const char *basedomain) | |
806 | { | |
b9aec69a | 807 | SSL_DANE *dane = &s->dane; |
919ba009 VD |
808 | |
809 | if (s->ctx->dane.mdmax == 0) { | |
810 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED); | |
811 | return 0; | |
812 | } | |
813 | if (dane->trecs != NULL) { | |
814 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED); | |
815 | return 0; | |
816 | } | |
817 | ||
8d887efa VD |
818 | /* |
819 | * Default SNI name. This rejects empty names, while set1_host below | |
820 | * accepts them and disables host name checks. To avoid side-effects with | |
821 | * invalid input, set the SNI name first. | |
822 | */ | |
823 | if (s->tlsext_hostname == NULL) { | |
dccd20d1 | 824 | if (!SSL_set_tlsext_host_name(s, basedomain)) { |
8d887efa | 825 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); |
dccd20d1 | 826 | return -1; |
8d887efa VD |
827 | } |
828 | } | |
829 | ||
919ba009 VD |
830 | /* Primary RFC6125 reference identifier */ |
831 | if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) { | |
832 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); | |
833 | return -1; | |
834 | } | |
835 | ||
919ba009 VD |
836 | dane->mdpth = -1; |
837 | dane->pdpth = -1; | |
838 | dane->dctx = &s->ctx->dane; | |
839 | dane->trecs = sk_danetls_record_new_null(); | |
840 | ||
841 | if (dane->trecs == NULL) { | |
842 | SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE); | |
843 | return -1; | |
844 | } | |
845 | return 1; | |
846 | } | |
847 | ||
848 | int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki) | |
849 | { | |
b9aec69a | 850 | SSL_DANE *dane = &s->dane; |
919ba009 | 851 | |
c0a445a9 | 852 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
853 | return -1; |
854 | if (dane->mtlsa) { | |
855 | if (mcert) | |
856 | *mcert = dane->mcert; | |
857 | if (mspki) | |
858 | *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL; | |
859 | } | |
860 | return dane->mdpth; | |
861 | } | |
862 | ||
863 | int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector, | |
864 | uint8_t *mtype, unsigned const char **data, size_t *dlen) | |
865 | { | |
b9aec69a | 866 | SSL_DANE *dane = &s->dane; |
919ba009 | 867 | |
c0a445a9 | 868 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
869 | return -1; |
870 | if (dane->mtlsa) { | |
871 | if (usage) | |
872 | *usage = dane->mtlsa->usage; | |
873 | if (selector) | |
874 | *selector = dane->mtlsa->selector; | |
875 | if (mtype) | |
876 | *mtype = dane->mtlsa->mtype; | |
877 | if (data) | |
878 | *data = dane->mtlsa->data; | |
879 | if (dlen) | |
880 | *dlen = dane->mtlsa->dlen; | |
881 | } | |
882 | return dane->mdpth; | |
883 | } | |
884 | ||
b9aec69a | 885 | SSL_DANE *SSL_get0_dane(SSL *s) |
919ba009 VD |
886 | { |
887 | return &s->dane; | |
888 | } | |
889 | ||
890 | int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector, | |
891 | uint8_t mtype, unsigned char *data, size_t dlen) | |
892 | { | |
893 | return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen); | |
894 | } | |
895 | ||
896 | int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype, uint8_t ord) | |
897 | { | |
898 | return dane_mtype_set(&ctx->dane, md, mtype, ord); | |
899 | } | |
900 | ||
ccf11751 | 901 | int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) |
0f113f3e MC |
902 | { |
903 | return X509_VERIFY_PARAM_set1(ctx->param, vpm); | |
904 | } | |
ccf11751 DSH |
905 | |
906 | int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) | |
0f113f3e MC |
907 | { |
908 | return X509_VERIFY_PARAM_set1(ssl->param, vpm); | |
909 | } | |
ccf11751 | 910 | |
7af31968 | 911 | X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx) |
0f113f3e MC |
912 | { |
913 | return ctx->param; | |
914 | } | |
7af31968 DSH |
915 | |
916 | X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl) | |
0f113f3e MC |
917 | { |
918 | return ssl->param; | |
919 | } | |
7af31968 | 920 | |
a5ee80b9 | 921 | void SSL_certs_clear(SSL *s) |
0f113f3e MC |
922 | { |
923 | ssl_cert_clear_certs(s->cert); | |
924 | } | |
a5ee80b9 | 925 | |
4f43d0e7 | 926 | void SSL_free(SSL *s) |
0f113f3e MC |
927 | { |
928 | int i; | |
58964a49 | 929 | |
0f113f3e MC |
930 | if (s == NULL) |
931 | return; | |
e03ddfae | 932 | |
16203f7b | 933 | CRYPTO_atomic_add(&s->references, -1, &i, s->lock); |
f3f1cf84 | 934 | REF_PRINT_COUNT("SSL", s); |
0f113f3e MC |
935 | if (i > 0) |
936 | return; | |
f3f1cf84 | 937 | REF_ASSERT_ISNT(i < 0); |
d02b48c6 | 938 | |
222561fe | 939 | X509_VERIFY_PARAM_free(s->param); |
919ba009 | 940 | dane_final(&s->dane); |
0f113f3e MC |
941 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); |
942 | ||
943 | if (s->bbio != NULL) { | |
944 | /* If the buffering BIO is in place, pop it off */ | |
945 | if (s->bbio == s->wbio) { | |
946 | s->wbio = BIO_pop(s->wbio); | |
947 | } | |
948 | BIO_free(s->bbio); | |
949 | s->bbio = NULL; | |
950 | } | |
ca3a82c3 | 951 | if (s->wbio != s->rbio) |
0f113f3e | 952 | BIO_free_all(s->wbio); |
325cfa85 | 953 | BIO_free_all(s->rbio); |
0f113f3e | 954 | |
25aaa98a | 955 | BUF_MEM_free(s->init_buf); |
0f113f3e MC |
956 | |
957 | /* add extra stuff */ | |
25aaa98a RS |
958 | sk_SSL_CIPHER_free(s->cipher_list); |
959 | sk_SSL_CIPHER_free(s->cipher_list_by_id); | |
0f113f3e MC |
960 | |
961 | /* Make the next call work :-) */ | |
962 | if (s->session != NULL) { | |
963 | ssl_clear_bad_session(s); | |
964 | SSL_SESSION_free(s->session); | |
965 | } | |
966 | ||
d31fb0b5 | 967 | clear_ciphers(s); |
d02b48c6 | 968 | |
e0e920b1 | 969 | ssl_cert_free(s->cert); |
0f113f3e | 970 | /* Free up if allocated */ |
d02b48c6 | 971 | |
b548a1f1 | 972 | OPENSSL_free(s->tlsext_hostname); |
e0e920b1 | 973 | SSL_CTX_free(s->initial_ctx); |
e481f9b9 | 974 | #ifndef OPENSSL_NO_EC |
b548a1f1 RS |
975 | OPENSSL_free(s->tlsext_ecpointformatlist); |
976 | OPENSSL_free(s->tlsext_ellipticcurvelist); | |
e481f9b9 | 977 | #endif /* OPENSSL_NO_EC */ |
222561fe | 978 | sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free); |
3e41ac35 | 979 | #ifndef OPENSSL_NO_OCSP |
25aaa98a | 980 | sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); |
3e41ac35 | 981 | #endif |
ed29e82a RP |
982 | #ifndef OPENSSL_NO_CT |
983 | SCT_LIST_free(s->scts); | |
984 | OPENSSL_free(s->tlsext_scts); | |
985 | #endif | |
b548a1f1 RS |
986 | OPENSSL_free(s->tlsext_ocsp_resp); |
987 | OPENSSL_free(s->alpn_client_proto_list); | |
0f113f3e | 988 | |
222561fe | 989 | sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free); |
0f113f3e | 990 | |
696178ed DSH |
991 | sk_X509_pop_free(s->verified_chain, X509_free); |
992 | ||
0f113f3e MC |
993 | if (s->method != NULL) |
994 | s->method->ssl_free(s); | |
995 | ||
f161995e | 996 | RECORD_LAYER_release(&s->rlayer); |
33d23b87 | 997 | |
e0e920b1 | 998 | SSL_CTX_free(s->ctx); |
7c3908dd | 999 | |
ff75a257 MC |
1000 | ASYNC_WAIT_CTX_free(s->waitctx); |
1001 | ||
e481f9b9 | 1002 | #if !defined(OPENSSL_NO_NEXTPROTONEG) |
b548a1f1 | 1003 | OPENSSL_free(s->next_proto_negotiated); |
ee2ffc27 BL |
1004 | #endif |
1005 | ||
e783bae2 | 1006 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 1007 | sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); |
0f113f3e MC |
1008 | #endif |
1009 | ||
16203f7b AG |
1010 | CRYPTO_THREAD_lock_free(s->lock); |
1011 | ||
0f113f3e MC |
1012 | OPENSSL_free(s); |
1013 | } | |
1014 | ||
3ffbe008 MC |
1015 | void SSL_set_rbio(SSL *s, BIO *rbio) |
1016 | { | |
ca3a82c3 | 1017 | if (s->rbio != rbio) |
3ffbe008 MC |
1018 | BIO_free_all(s->rbio); |
1019 | s->rbio = rbio; | |
1020 | } | |
1021 | ||
1022 | void SSL_set_wbio(SSL *s, BIO *wbio) | |
0f113f3e MC |
1023 | { |
1024 | /* | |
1025 | * If the output buffering BIO is still in place, remove it | |
1026 | */ | |
1027 | if (s->bbio != NULL) { | |
1028 | if (s->wbio == s->bbio) { | |
a146ae55 MC |
1029 | s->wbio = BIO_next(s->wbio); |
1030 | BIO_set_next(s->bbio, NULL); | |
0f113f3e MC |
1031 | } |
1032 | } | |
ca3a82c3 | 1033 | if (s->wbio != wbio && s->rbio != s->wbio) |
0f113f3e | 1034 | BIO_free_all(s->wbio); |
0f113f3e MC |
1035 | s->wbio = wbio; |
1036 | } | |
d02b48c6 | 1037 | |
3ffbe008 MC |
1038 | void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) |
1039 | { | |
1040 | SSL_set_wbio(s, wbio); | |
1041 | SSL_set_rbio(s, rbio); | |
1042 | } | |
1043 | ||
0821bcd4 | 1044 | BIO *SSL_get_rbio(const SSL *s) |
0f113f3e MC |
1045 | { |
1046 | return (s->rbio); | |
1047 | } | |
d02b48c6 | 1048 | |
0821bcd4 | 1049 | BIO *SSL_get_wbio(const SSL *s) |
0f113f3e MC |
1050 | { |
1051 | return (s->wbio); | |
1052 | } | |
d02b48c6 | 1053 | |
0821bcd4 | 1054 | int SSL_get_fd(const SSL *s) |
0f113f3e MC |
1055 | { |
1056 | return (SSL_get_rfd(s)); | |
1057 | } | |
24cbf3ef | 1058 | |
0821bcd4 | 1059 | int SSL_get_rfd(const SSL *s) |
0f113f3e MC |
1060 | { |
1061 | int ret = -1; | |
1062 | BIO *b, *r; | |
1063 | ||
1064 | b = SSL_get_rbio(s); | |
1065 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1066 | if (r != NULL) | |
1067 | BIO_get_fd(r, &ret); | |
1068 | return (ret); | |
1069 | } | |
d02b48c6 | 1070 | |
0821bcd4 | 1071 | int SSL_get_wfd(const SSL *s) |
0f113f3e MC |
1072 | { |
1073 | int ret = -1; | |
1074 | BIO *b, *r; | |
1075 | ||
1076 | b = SSL_get_wbio(s); | |
1077 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1078 | if (r != NULL) | |
1079 | BIO_get_fd(r, &ret); | |
1080 | return (ret); | |
1081 | } | |
24cbf3ef | 1082 | |
bc36ee62 | 1083 | #ifndef OPENSSL_NO_SOCK |
0f113f3e MC |
1084 | int SSL_set_fd(SSL *s, int fd) |
1085 | { | |
1086 | int ret = 0; | |
1087 | BIO *bio = NULL; | |
1088 | ||
1089 | bio = BIO_new(BIO_s_socket()); | |
1090 | ||
1091 | if (bio == NULL) { | |
1092 | SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB); | |
1093 | goto err; | |
1094 | } | |
1095 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
1096 | SSL_set_bio(s, bio, bio); | |
1097 | ret = 1; | |
1098 | err: | |
1099 | return (ret); | |
1100 | } | |
d02b48c6 | 1101 | |
0f113f3e MC |
1102 | int SSL_set_wfd(SSL *s, int fd) |
1103 | { | |
1104 | int ret = 0; | |
1105 | BIO *bio = NULL; | |
1106 | ||
1107 | if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) | |
1108 | || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { | |
1109 | bio = BIO_new(BIO_s_socket()); | |
1110 | ||
1111 | if (bio == NULL) { | |
1112 | SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB); | |
1113 | goto err; | |
1114 | } | |
1115 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
1116 | SSL_set_bio(s, SSL_get_rbio(s), bio); | |
1117 | } else | |
1118 | SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); | |
1119 | ret = 1; | |
1120 | err: | |
1121 | return (ret); | |
1122 | } | |
1123 | ||
1124 | int SSL_set_rfd(SSL *s, int fd) | |
1125 | { | |
1126 | int ret = 0; | |
1127 | BIO *bio = NULL; | |
1128 | ||
1129 | if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) | |
1130 | || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { | |
1131 | bio = BIO_new(BIO_s_socket()); | |
1132 | ||
1133 | if (bio == NULL) { | |
1134 | SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB); | |
1135 | goto err; | |
1136 | } | |
1137 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
1138 | SSL_set_bio(s, bio, SSL_get_wbio(s)); | |
1139 | } else | |
1140 | SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); | |
1141 | ret = 1; | |
1142 | err: | |
1143 | return (ret); | |
1144 | } | |
1145 | #endif | |
ca03109c BM |
1146 | |
1147 | /* return length of latest Finished message we sent, copy to 'buf' */ | |
0821bcd4 | 1148 | size_t SSL_get_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1149 | { |
1150 | size_t ret = 0; | |
1151 | ||
1152 | if (s->s3 != NULL) { | |
1153 | ret = s->s3->tmp.finish_md_len; | |
1154 | if (count > ret) | |
1155 | count = ret; | |
1156 | memcpy(buf, s->s3->tmp.finish_md, count); | |
1157 | } | |
1158 | return ret; | |
1159 | } | |
ca03109c BM |
1160 | |
1161 | /* return length of latest Finished message we expected, copy to 'buf' */ | |
0821bcd4 | 1162 | size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1163 | { |
1164 | size_t ret = 0; | |
ca03109c | 1165 | |
0f113f3e MC |
1166 | if (s->s3 != NULL) { |
1167 | ret = s->s3->tmp.peer_finish_md_len; | |
1168 | if (count > ret) | |
1169 | count = ret; | |
1170 | memcpy(buf, s->s3->tmp.peer_finish_md, count); | |
1171 | } | |
1172 | return ret; | |
1173 | } | |
ca03109c | 1174 | |
0821bcd4 | 1175 | int SSL_get_verify_mode(const SSL *s) |
0f113f3e MC |
1176 | { |
1177 | return (s->verify_mode); | |
1178 | } | |
d02b48c6 | 1179 | |
0821bcd4 | 1180 | int SSL_get_verify_depth(const SSL *s) |
0f113f3e MC |
1181 | { |
1182 | return X509_VERIFY_PARAM_get_depth(s->param); | |
1183 | } | |
7f89714e | 1184 | |
0f113f3e MC |
1185 | int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) { |
1186 | return (s->verify_callback); | |
1187 | } | |
d02b48c6 | 1188 | |
0821bcd4 | 1189 | int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) |
0f113f3e MC |
1190 | { |
1191 | return (ctx->verify_mode); | |
1192 | } | |
d02b48c6 | 1193 | |
0821bcd4 | 1194 | int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) |
0f113f3e MC |
1195 | { |
1196 | return X509_VERIFY_PARAM_get_depth(ctx->param); | |
1197 | } | |
1198 | ||
1199 | int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) { | |
1200 | return (ctx->default_verify_callback); | |
1201 | } | |
1202 | ||
1203 | void SSL_set_verify(SSL *s, int mode, | |
1204 | int (*callback) (int ok, X509_STORE_CTX *ctx)) | |
1205 | { | |
1206 | s->verify_mode = mode; | |
1207 | if (callback != NULL) | |
1208 | s->verify_callback = callback; | |
1209 | } | |
1210 | ||
1211 | void SSL_set_verify_depth(SSL *s, int depth) | |
1212 | { | |
1213 | X509_VERIFY_PARAM_set_depth(s->param, depth); | |
1214 | } | |
1215 | ||
1216 | void SSL_set_read_ahead(SSL *s, int yes) | |
1217 | { | |
52e1d7b1 | 1218 | RECORD_LAYER_set_read_ahead(&s->rlayer, yes); |
0f113f3e | 1219 | } |
d02b48c6 | 1220 | |
0821bcd4 | 1221 | int SSL_get_read_ahead(const SSL *s) |
0f113f3e | 1222 | { |
52e1d7b1 | 1223 | return RECORD_LAYER_get_read_ahead(&s->rlayer); |
0f113f3e | 1224 | } |
d02b48c6 | 1225 | |
0821bcd4 | 1226 | int SSL_pending(const SSL *s) |
0f113f3e MC |
1227 | { |
1228 | /* | |
1229 | * SSL_pending cannot work properly if read-ahead is enabled | |
1230 | * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is | |
1231 | * impossible to fix since SSL_pending cannot report errors that may be | |
1232 | * observed while scanning the new data. (Note that SSL_pending() is | |
1233 | * often used as a boolean value, so we'd better not return -1.) | |
1234 | */ | |
1235 | return (s->method->ssl_pending(s)); | |
1236 | } | |
d02b48c6 | 1237 | |
49580f25 MC |
1238 | int SSL_has_pending(const SSL *s) |
1239 | { | |
1240 | /* | |
1241 | * Similar to SSL_pending() but returns a 1 to indicate that we have | |
1242 | * unprocessed data available or 0 otherwise (as opposed to the number of | |
1243 | * bytes available). Unlike SSL_pending() this will take into account | |
1244 | * read_ahead data. A 1 return simply indicates that we have unprocessed | |
1245 | * data. That data may not result in any application data, or we may fail | |
1246 | * to parse the records for some reason. | |
1247 | */ | |
1248 | if (SSL_pending(s)) | |
1249 | return 1; | |
1250 | ||
1251 | return RECORD_LAYER_read_pending(&s->rlayer); | |
1252 | } | |
1253 | ||
0821bcd4 | 1254 | X509 *SSL_get_peer_certificate(const SSL *s) |
0f113f3e MC |
1255 | { |
1256 | X509 *r; | |
d02b48c6 | 1257 | |
0f113f3e MC |
1258 | if ((s == NULL) || (s->session == NULL)) |
1259 | r = NULL; | |
1260 | else | |
1261 | r = s->session->peer; | |
d02b48c6 | 1262 | |
0f113f3e MC |
1263 | if (r == NULL) |
1264 | return (r); | |
d02b48c6 | 1265 | |
05f0fb9f | 1266 | X509_up_ref(r); |
0f113f3e MC |
1267 | |
1268 | return (r); | |
1269 | } | |
d02b48c6 | 1270 | |
0821bcd4 | 1271 | STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) |
0f113f3e MC |
1272 | { |
1273 | STACK_OF(X509) *r; | |
1274 | ||
c34b0f99 | 1275 | if ((s == NULL) || (s->session == NULL)) |
0f113f3e MC |
1276 | r = NULL; |
1277 | else | |
c34b0f99 | 1278 | r = s->session->peer_chain; |
0f113f3e MC |
1279 | |
1280 | /* | |
1281 | * If we are a client, cert_chain includes the peer's own certificate; if | |
1282 | * we are a server, it does not. | |
1283 | */ | |
1284 | ||
1285 | return (r); | |
1286 | } | |
1287 | ||
1288 | /* | |
1289 | * Now in theory, since the calling process own 't' it should be safe to | |
1290 | * modify. We need to be able to read f without being hassled | |
1291 | */ | |
17dd65e6 | 1292 | int SSL_copy_session_id(SSL *t, const SSL *f) |
0f113f3e | 1293 | { |
16203f7b | 1294 | int i; |
0f113f3e | 1295 | /* Do we need to to SSL locking? */ |
61986d32 | 1296 | if (!SSL_set_session(t, SSL_get_session(f))) { |
17dd65e6 | 1297 | return 0; |
69f68237 | 1298 | } |
0f113f3e MC |
1299 | |
1300 | /* | |
87d9cafa | 1301 | * what if we are setup for one protocol version but want to talk another |
0f113f3e MC |
1302 | */ |
1303 | if (t->method != f->method) { | |
919ba009 VD |
1304 | t->method->ssl_free(t); |
1305 | t->method = f->method; | |
1306 | if (t->method->ssl_new(t) == 0) | |
1307 | return 0; | |
0f113f3e MC |
1308 | } |
1309 | ||
16203f7b | 1310 | CRYPTO_atomic_add(&f->cert->references, 1, &i, f->cert->lock); |
24a0d393 KR |
1311 | ssl_cert_free(t->cert); |
1312 | t->cert = f->cert; | |
61986d32 | 1313 | if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) { |
17dd65e6 | 1314 | return 0; |
69f68237 | 1315 | } |
17dd65e6 MC |
1316 | |
1317 | return 1; | |
0f113f3e | 1318 | } |
d02b48c6 | 1319 | |
58964a49 | 1320 | /* Fix this so it checks all the valid key/cert options */ |
0821bcd4 | 1321 | int SSL_CTX_check_private_key(const SSL_CTX *ctx) |
0f113f3e MC |
1322 | { |
1323 | if ((ctx == NULL) || | |
24a0d393 | 1324 | (ctx->cert->key->x509 == NULL)) { |
0f113f3e MC |
1325 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, |
1326 | SSL_R_NO_CERTIFICATE_ASSIGNED); | |
1327 | return (0); | |
1328 | } | |
1329 | if (ctx->cert->key->privatekey == NULL) { | |
1330 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, | |
1331 | SSL_R_NO_PRIVATE_KEY_ASSIGNED); | |
1332 | return (0); | |
1333 | } | |
1334 | return (X509_check_private_key | |
1335 | (ctx->cert->key->x509, ctx->cert->key->privatekey)); | |
1336 | } | |
d02b48c6 | 1337 | |
58964a49 | 1338 | /* Fix this function so that it takes an optional type parameter */ |
0821bcd4 | 1339 | int SSL_check_private_key(const SSL *ssl) |
0f113f3e MC |
1340 | { |
1341 | if (ssl == NULL) { | |
1342 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER); | |
1343 | return (0); | |
1344 | } | |
0f113f3e MC |
1345 | if (ssl->cert->key->x509 == NULL) { |
1346 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
1347 | return (0); | |
1348 | } | |
1349 | if (ssl->cert->key->privatekey == NULL) { | |
1350 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); | |
1351 | return (0); | |
1352 | } | |
1353 | return (X509_check_private_key(ssl->cert->key->x509, | |
1354 | ssl->cert->key->privatekey)); | |
1355 | } | |
d02b48c6 | 1356 | |
07bbc92c MC |
1357 | int SSL_waiting_for_async(SSL *s) |
1358 | { | |
82676094 MC |
1359 | if(s->job) |
1360 | return 1; | |
1361 | ||
07bbc92c MC |
1362 | return 0; |
1363 | } | |
1364 | ||
ff75a257 | 1365 | int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds) |
f4da39d2 | 1366 | { |
ff75a257 MC |
1367 | ASYNC_WAIT_CTX *ctx = s->waitctx; |
1368 | ||
1369 | if (ctx == NULL) | |
1370 | return 0; | |
1371 | return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds); | |
1372 | } | |
f4da39d2 | 1373 | |
ff75a257 MC |
1374 | int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds, |
1375 | OSSL_ASYNC_FD *delfd, size_t *numdelfds) | |
1376 | { | |
1377 | ASYNC_WAIT_CTX *ctx = s->waitctx; | |
1378 | ||
1379 | if (ctx == NULL) | |
1380 | return 0; | |
1381 | return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd, | |
1382 | numdelfds); | |
f4da39d2 MC |
1383 | } |
1384 | ||
4f43d0e7 | 1385 | int SSL_accept(SSL *s) |
0f113f3e | 1386 | { |
c4c32155 | 1387 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1388 | /* Not properly initialized yet */ |
1389 | SSL_set_accept_state(s); | |
07bbc92c | 1390 | } |
add2f5ca MC |
1391 | |
1392 | return SSL_do_handshake(s); | |
0f113f3e | 1393 | } |
d02b48c6 | 1394 | |
4f43d0e7 | 1395 | int SSL_connect(SSL *s) |
0f113f3e | 1396 | { |
c4c32155 | 1397 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1398 | /* Not properly initialized yet */ |
1399 | SSL_set_connect_state(s); | |
add2f5ca | 1400 | } |
b31b04d9 | 1401 | |
add2f5ca | 1402 | return SSL_do_handshake(s); |
0f113f3e | 1403 | } |
d02b48c6 | 1404 | |
0821bcd4 | 1405 | long SSL_get_default_timeout(const SSL *s) |
0f113f3e MC |
1406 | { |
1407 | return (s->method->get_timeout()); | |
1408 | } | |
1409 | ||
7fecbf6f | 1410 | static int ssl_start_async_job(SSL *s, struct ssl_async_args *args, |
add2f5ca MC |
1411 | int (*func)(void *)) { |
1412 | int ret; | |
ff75a257 MC |
1413 | if (s->waitctx == NULL) { |
1414 | s->waitctx = ASYNC_WAIT_CTX_new(); | |
1415 | if (s->waitctx == NULL) | |
1416 | return -1; | |
1417 | } | |
1418 | switch(ASYNC_start_job(&s->job, s->waitctx, &ret, func, args, | |
add2f5ca MC |
1419 | sizeof(struct ssl_async_args))) { |
1420 | case ASYNC_ERR: | |
1421 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1422 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC); |
add2f5ca MC |
1423 | return -1; |
1424 | case ASYNC_PAUSE: | |
1425 | s->rwstate = SSL_ASYNC_PAUSED; | |
1426 | return -1; | |
fc7f190c MC |
1427 | case ASYNC_NO_JOBS: |
1428 | s->rwstate = SSL_ASYNC_NO_JOBS; | |
1429 | return -1; | |
add2f5ca MC |
1430 | case ASYNC_FINISH: |
1431 | s->job = NULL; | |
1432 | return ret; | |
1433 | default: | |
1434 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1435 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR); |
add2f5ca MC |
1436 | /* Shouldn't happen */ |
1437 | return -1; | |
1438 | } | |
1439 | } | |
07bbc92c | 1440 | |
add2f5ca | 1441 | static int ssl_io_intern(void *vargs) |
07bbc92c MC |
1442 | { |
1443 | struct ssl_async_args *args; | |
1444 | SSL *s; | |
1445 | void *buf; | |
1446 | int num; | |
1447 | ||
1448 | args = (struct ssl_async_args *)vargs; | |
1449 | s = args->s; | |
1450 | buf = args->buf; | |
1451 | num = args->num; | |
ec447924 MC |
1452 | switch (args->type) { |
1453 | case READFUNC: | |
1454 | return args->f.func_read(s, buf, num); | |
1455 | case WRITEFUNC: | |
1456 | return args->f.func_write(s, buf, num); | |
1457 | case OTHERFUNC: | |
1458 | return args->f.func_other(s); | |
1459 | } | |
1460 | return -1; | |
07bbc92c MC |
1461 | } |
1462 | ||
0f113f3e MC |
1463 | int SSL_read(SSL *s, void *buf, int num) |
1464 | { | |
c4c32155 | 1465 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1466 | SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); |
1467 | return -1; | |
1468 | } | |
1469 | ||
1470 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
1471 | s->rwstate = SSL_NOTHING; | |
1472 | return (0); | |
1473 | } | |
07bbc92c | 1474 | |
44a27ac2 | 1475 | if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca MC |
1476 | struct ssl_async_args args; |
1477 | ||
1478 | args.s = s; | |
1479 | args.buf = buf; | |
1480 | args.num = num; | |
ec447924 MC |
1481 | args.type = READFUNC; |
1482 | args.f.func_read = s->method->ssl_read; | |
add2f5ca | 1483 | |
7fecbf6f | 1484 | return ssl_start_async_job(s, &args, ssl_io_intern); |
07bbc92c MC |
1485 | } else { |
1486 | return s->method->ssl_read(s, buf, num); | |
1487 | } | |
0f113f3e MC |
1488 | } |
1489 | ||
1490 | int SSL_peek(SSL *s, void *buf, int num) | |
1491 | { | |
c4c32155 | 1492 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1493 | SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED); |
1494 | return -1; | |
1495 | } | |
1496 | ||
1497 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
1498 | return (0); | |
1499 | } | |
add2f5ca MC |
1500 | if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
1501 | struct ssl_async_args args; | |
0f113f3e | 1502 | |
add2f5ca MC |
1503 | args.s = s; |
1504 | args.buf = buf; | |
1505 | args.num = num; | |
ec447924 MC |
1506 | args.type = READFUNC; |
1507 | args.f.func_read = s->method->ssl_peek; | |
07bbc92c | 1508 | |
7fecbf6f | 1509 | return ssl_start_async_job(s, &args, ssl_io_intern); |
add2f5ca MC |
1510 | } else { |
1511 | return s->method->ssl_peek(s, buf, num); | |
1512 | } | |
07bbc92c MC |
1513 | } |
1514 | ||
0f113f3e MC |
1515 | int SSL_write(SSL *s, const void *buf, int num) |
1516 | { | |
c4c32155 | 1517 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1518 | SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED); |
1519 | return -1; | |
1520 | } | |
1521 | ||
1522 | if (s->shutdown & SSL_SENT_SHUTDOWN) { | |
1523 | s->rwstate = SSL_NOTHING; | |
1524 | SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN); | |
1525 | return (-1); | |
1526 | } | |
07bbc92c | 1527 | |
44a27ac2 | 1528 | if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca MC |
1529 | struct ssl_async_args args; |
1530 | ||
1531 | args.s = s; | |
1532 | args.buf = (void *)buf; | |
1533 | args.num = num; | |
ec447924 MC |
1534 | args.type = WRITEFUNC; |
1535 | args.f.func_write = s->method->ssl_write; | |
add2f5ca | 1536 | |
7fecbf6f | 1537 | return ssl_start_async_job(s, &args, ssl_io_intern); |
07bbc92c MC |
1538 | } else { |
1539 | return s->method->ssl_write(s, buf, num); | |
1540 | } | |
0f113f3e | 1541 | } |
d02b48c6 | 1542 | |
4f43d0e7 | 1543 | int SSL_shutdown(SSL *s) |
0f113f3e MC |
1544 | { |
1545 | /* | |
1546 | * Note that this function behaves differently from what one might | |
1547 | * expect. Return values are 0 for no success (yet), 1 for success; but | |
1548 | * calling it once is usually not enough, even if blocking I/O is used | |
1549 | * (see ssl3_shutdown). | |
1550 | */ | |
1551 | ||
c4c32155 | 1552 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1553 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); |
1554 | return -1; | |
1555 | } | |
1556 | ||
64f9f406 MC |
1557 | if (!SSL_in_init(s)) { |
1558 | if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { | |
1559 | struct ssl_async_args args; | |
ec447924 | 1560 | |
64f9f406 MC |
1561 | args.s = s; |
1562 | args.type = OTHERFUNC; | |
1563 | args.f.func_other = s->method->ssl_shutdown; | |
ec447924 | 1564 | |
64f9f406 MC |
1565 | return ssl_start_async_job(s, &args, ssl_io_intern); |
1566 | } else { | |
1567 | return s->method->ssl_shutdown(s); | |
1568 | } | |
ec447924 | 1569 | } else { |
64f9f406 MC |
1570 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT); |
1571 | return -1; | |
ec447924 | 1572 | } |
0f113f3e | 1573 | } |
d02b48c6 | 1574 | |
4f43d0e7 | 1575 | int SSL_renegotiate(SSL *s) |
0f113f3e MC |
1576 | { |
1577 | if (s->renegotiate == 0) | |
1578 | s->renegotiate = 1; | |
44959ee4 | 1579 | |
0f113f3e | 1580 | s->new_session = 1; |
44959ee4 | 1581 | |
0f113f3e MC |
1582 | return (s->method->ssl_renegotiate(s)); |
1583 | } | |
d02b48c6 | 1584 | |
44959ee4 | 1585 | int SSL_renegotiate_abbreviated(SSL *s) |
0f113f3e MC |
1586 | { |
1587 | if (s->renegotiate == 0) | |
1588 | s->renegotiate = 1; | |
c519e89f | 1589 | |
0f113f3e | 1590 | s->new_session = 0; |
c519e89f | 1591 | |
0f113f3e MC |
1592 | return (s->method->ssl_renegotiate(s)); |
1593 | } | |
44959ee4 | 1594 | |
6b0e9fac | 1595 | int SSL_renegotiate_pending(SSL *s) |
0f113f3e MC |
1596 | { |
1597 | /* | |
1598 | * becomes true when negotiation is requested; false again once a | |
1599 | * handshake has finished | |
1600 | */ | |
1601 | return (s->renegotiate != 0); | |
1602 | } | |
1603 | ||
1604 | long SSL_ctrl(SSL *s, int cmd, long larg, void *parg) | |
1605 | { | |
1606 | long l; | |
1607 | ||
1608 | switch (cmd) { | |
1609 | case SSL_CTRL_GET_READ_AHEAD: | |
52e1d7b1 | 1610 | return (RECORD_LAYER_get_read_ahead(&s->rlayer)); |
0f113f3e | 1611 | case SSL_CTRL_SET_READ_AHEAD: |
52e1d7b1 MC |
1612 | l = RECORD_LAYER_get_read_ahead(&s->rlayer); |
1613 | RECORD_LAYER_set_read_ahead(&s->rlayer, larg); | |
0f113f3e MC |
1614 | return (l); |
1615 | ||
1616 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
1617 | s->msg_callback_arg = parg; | |
1618 | return 1; | |
1619 | ||
0f113f3e MC |
1620 | case SSL_CTRL_MODE: |
1621 | return (s->mode |= larg); | |
1622 | case SSL_CTRL_CLEAR_MODE: | |
1623 | return (s->mode &= ~larg); | |
1624 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
1625 | return (s->max_cert_list); | |
1626 | case SSL_CTRL_SET_MAX_CERT_LIST: | |
1627 | l = s->max_cert_list; | |
1628 | s->max_cert_list = larg; | |
1629 | return (l); | |
1630 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
1631 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
1632 | return 0; | |
1633 | s->max_send_fragment = larg; | |
d102d9df MC |
1634 | if (s->max_send_fragment < s->split_send_fragment) |
1635 | s->split_send_fragment = s->max_send_fragment; | |
1636 | return 1; | |
1637 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: | |
6b99e875 | 1638 | if ((unsigned int)larg > s->max_send_fragment || larg == 0) |
d102d9df MC |
1639 | return 0; |
1640 | s->split_send_fragment = larg; | |
0f113f3e | 1641 | return 1; |
d102d9df MC |
1642 | case SSL_CTRL_SET_MAX_PIPELINES: |
1643 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
1644 | return 0; | |
1645 | s->max_pipelines = larg; | |
94777c9c MC |
1646 | if (larg > 1) |
1647 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
07077415 | 1648 | return 1; |
0f113f3e MC |
1649 | case SSL_CTRL_GET_RI_SUPPORT: |
1650 | if (s->s3) | |
1651 | return s->s3->send_connection_binding; | |
1652 | else | |
1653 | return 0; | |
1654 | case SSL_CTRL_CERT_FLAGS: | |
1655 | return (s->cert->cert_flags |= larg); | |
1656 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
1657 | return (s->cert->cert_flags &= ~larg); | |
1658 | ||
1659 | case SSL_CTRL_GET_RAW_CIPHERLIST: | |
1660 | if (parg) { | |
76106e60 | 1661 | if (s->s3->tmp.ciphers_raw == NULL) |
0f113f3e | 1662 | return 0; |
76106e60 DSH |
1663 | *(unsigned char **)parg = s->s3->tmp.ciphers_raw; |
1664 | return (int)s->s3->tmp.ciphers_rawlen; | |
e9fa092e EK |
1665 | } else { |
1666 | return TLS_CIPHER_LEN; | |
1667 | } | |
c5364614 | 1668 | case SSL_CTRL_GET_EXTMS_SUPPORT: |
024f543c | 1669 | if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s)) |
dccd20d1 F |
1670 | return -1; |
1671 | if (s->session->flags & SSL_SESS_FLAG_EXTMS) | |
c5364614 DSH |
1672 | return 1; |
1673 | else | |
1674 | return 0; | |
7946ab33 | 1675 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
4fa52141 VD |
1676 | return ssl_set_version_bound(s->ctx->method->version, (int)larg, |
1677 | &s->min_proto_version); | |
7946ab33 | 1678 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
4fa52141 VD |
1679 | return ssl_set_version_bound(s->ctx->method->version, (int)larg, |
1680 | &s->max_proto_version); | |
0f113f3e MC |
1681 | default: |
1682 | return (s->method->ssl_ctrl(s, cmd, larg, parg)); | |
1683 | } | |
1684 | } | |
1685 | ||
1686 | long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
1687 | { | |
1688 | switch (cmd) { | |
1689 | case SSL_CTRL_SET_MSG_CALLBACK: | |
1690 | s->msg_callback = (void (*) | |
1691 | (int write_p, int version, int content_type, | |
1692 | const void *buf, size_t len, SSL *ssl, | |
1693 | void *arg))(fp); | |
1694 | return 1; | |
1695 | ||
1696 | default: | |
1697 | return (s->method->ssl_callback_ctrl(s, cmd, fp)); | |
1698 | } | |
1699 | } | |
d3442bc7 | 1700 | |
3c1d6bbc | 1701 | LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx) |
0f113f3e MC |
1702 | { |
1703 | return ctx->sessions; | |
1704 | } | |
1705 | ||
1706 | long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
1707 | { | |
1708 | long l; | |
1709 | /* For some cases with ctx == NULL perform syntax checks */ | |
1710 | if (ctx == NULL) { | |
1711 | switch (cmd) { | |
14536c8c | 1712 | #ifndef OPENSSL_NO_EC |
0f113f3e MC |
1713 | case SSL_CTRL_SET_CURVES_LIST: |
1714 | return tls1_set_curves_list(NULL, NULL, parg); | |
1715 | #endif | |
1716 | case SSL_CTRL_SET_SIGALGS_LIST: | |
1717 | case SSL_CTRL_SET_CLIENT_SIGALGS_LIST: | |
1718 | return tls1_set_sigalgs_list(NULL, parg, 0); | |
1719 | default: | |
1720 | return 0; | |
1721 | } | |
1722 | } | |
1723 | ||
1724 | switch (cmd) { | |
1725 | case SSL_CTRL_GET_READ_AHEAD: | |
1726 | return (ctx->read_ahead); | |
1727 | case SSL_CTRL_SET_READ_AHEAD: | |
1728 | l = ctx->read_ahead; | |
1729 | ctx->read_ahead = larg; | |
1730 | return (l); | |
1731 | ||
1732 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
1733 | ctx->msg_callback_arg = parg; | |
1734 | return 1; | |
1735 | ||
1736 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
1737 | return (ctx->max_cert_list); | |
1738 | case SSL_CTRL_SET_MAX_CERT_LIST: | |
1739 | l = ctx->max_cert_list; | |
1740 | ctx->max_cert_list = larg; | |
1741 | return (l); | |
1742 | ||
1743 | case SSL_CTRL_SET_SESS_CACHE_SIZE: | |
1744 | l = ctx->session_cache_size; | |
1745 | ctx->session_cache_size = larg; | |
1746 | return (l); | |
1747 | case SSL_CTRL_GET_SESS_CACHE_SIZE: | |
1748 | return (ctx->session_cache_size); | |
1749 | case SSL_CTRL_SET_SESS_CACHE_MODE: | |
1750 | l = ctx->session_cache_mode; | |
1751 | ctx->session_cache_mode = larg; | |
1752 | return (l); | |
1753 | case SSL_CTRL_GET_SESS_CACHE_MODE: | |
1754 | return (ctx->session_cache_mode); | |
1755 | ||
1756 | case SSL_CTRL_SESS_NUMBER: | |
1757 | return (lh_SSL_SESSION_num_items(ctx->sessions)); | |
1758 | case SSL_CTRL_SESS_CONNECT: | |
1759 | return (ctx->stats.sess_connect); | |
1760 | case SSL_CTRL_SESS_CONNECT_GOOD: | |
1761 | return (ctx->stats.sess_connect_good); | |
1762 | case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: | |
1763 | return (ctx->stats.sess_connect_renegotiate); | |
1764 | case SSL_CTRL_SESS_ACCEPT: | |
1765 | return (ctx->stats.sess_accept); | |
1766 | case SSL_CTRL_SESS_ACCEPT_GOOD: | |
1767 | return (ctx->stats.sess_accept_good); | |
1768 | case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: | |
1769 | return (ctx->stats.sess_accept_renegotiate); | |
1770 | case SSL_CTRL_SESS_HIT: | |
1771 | return (ctx->stats.sess_hit); | |
1772 | case SSL_CTRL_SESS_CB_HIT: | |
1773 | return (ctx->stats.sess_cb_hit); | |
1774 | case SSL_CTRL_SESS_MISSES: | |
1775 | return (ctx->stats.sess_miss); | |
1776 | case SSL_CTRL_SESS_TIMEOUTS: | |
1777 | return (ctx->stats.sess_timeout); | |
1778 | case SSL_CTRL_SESS_CACHE_FULL: | |
1779 | return (ctx->stats.sess_cache_full); | |
0f113f3e MC |
1780 | case SSL_CTRL_MODE: |
1781 | return (ctx->mode |= larg); | |
1782 | case SSL_CTRL_CLEAR_MODE: | |
1783 | return (ctx->mode &= ~larg); | |
1784 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
1785 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
1786 | return 0; | |
1787 | ctx->max_send_fragment = larg; | |
d102d9df | 1788 | if (ctx->max_send_fragment < ctx->split_send_fragment) |
bfb155c1 | 1789 | ctx->split_send_fragment = ctx->max_send_fragment; |
0f113f3e | 1790 | return 1; |
d102d9df | 1791 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: |
6b99e875 | 1792 | if ((unsigned int)larg > ctx->max_send_fragment || larg == 0) |
d102d9df MC |
1793 | return 0; |
1794 | ctx->split_send_fragment = larg; | |
1795 | return 1; | |
1796 | case SSL_CTRL_SET_MAX_PIPELINES: | |
1797 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
1798 | return 0; | |
1799 | ctx->max_pipelines = larg; | |
07077415 | 1800 | return 1; |
0f113f3e MC |
1801 | case SSL_CTRL_CERT_FLAGS: |
1802 | return (ctx->cert->cert_flags |= larg); | |
1803 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
1804 | return (ctx->cert->cert_flags &= ~larg); | |
7946ab33 | 1805 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
4fa52141 VD |
1806 | return ssl_set_version_bound(ctx->method->version, (int)larg, |
1807 | &ctx->min_proto_version); | |
7946ab33 | 1808 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
4fa52141 VD |
1809 | return ssl_set_version_bound(ctx->method->version, (int)larg, |
1810 | &ctx->max_proto_version); | |
0f113f3e MC |
1811 | default: |
1812 | return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg)); | |
1813 | } | |
1814 | } | |
1815 | ||
1816 | long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
1817 | { | |
1818 | switch (cmd) { | |
1819 | case SSL_CTRL_SET_MSG_CALLBACK: | |
1820 | ctx->msg_callback = (void (*) | |
1821 | (int write_p, int version, int content_type, | |
1822 | const void *buf, size_t len, SSL *ssl, | |
1823 | void *arg))(fp); | |
1824 | return 1; | |
1825 | ||
1826 | default: | |
1827 | return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp)); | |
1828 | } | |
1829 | } | |
d3442bc7 | 1830 | |
ccd86b68 | 1831 | int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) |
0f113f3e | 1832 | { |
90d9e49a DSH |
1833 | if (a->id > b->id) |
1834 | return 1; | |
1835 | if (a->id < b->id) | |
1836 | return -1; | |
1837 | return 0; | |
0f113f3e MC |
1838 | } |
1839 | ||
1840 | int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, | |
1841 | const SSL_CIPHER *const *bp) | |
1842 | { | |
90d9e49a DSH |
1843 | if ((*ap)->id > (*bp)->id) |
1844 | return 1; | |
1845 | if ((*ap)->id < (*bp)->id) | |
1846 | return -1; | |
1847 | return 0; | |
0f113f3e | 1848 | } |
d02b48c6 | 1849 | |
4f43d0e7 | 1850 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 1851 | * preference */ |
0821bcd4 | 1852 | STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) |
0f113f3e MC |
1853 | { |
1854 | if (s != NULL) { | |
1855 | if (s->cipher_list != NULL) { | |
1856 | return (s->cipher_list); | |
1857 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { | |
1858 | return (s->ctx->cipher_list); | |
1859 | } | |
1860 | } | |
1861 | return (NULL); | |
1862 | } | |
1863 | ||
831eef2c NM |
1864 | STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s) |
1865 | { | |
1866 | if ((s == NULL) || (s->session == NULL) || !s->server) | |
1867 | return NULL; | |
1868 | return s->session->ciphers; | |
1869 | } | |
1870 | ||
8b8e5bed | 1871 | STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s) |
0f113f3e MC |
1872 | { |
1873 | STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers; | |
1874 | int i; | |
1875 | ciphers = SSL_get_ciphers(s); | |
1876 | if (!ciphers) | |
1877 | return NULL; | |
1878 | ssl_set_client_disabled(s); | |
1879 | for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { | |
1880 | const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i); | |
1881 | if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) { | |
1882 | if (!sk) | |
1883 | sk = sk_SSL_CIPHER_new_null(); | |
1884 | if (!sk) | |
1885 | return NULL; | |
1886 | if (!sk_SSL_CIPHER_push(sk, c)) { | |
1887 | sk_SSL_CIPHER_free(sk); | |
1888 | return NULL; | |
1889 | } | |
1890 | } | |
1891 | } | |
1892 | return sk; | |
1893 | } | |
8b8e5bed | 1894 | |
4f43d0e7 | 1895 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 1896 | * algorithm id */ |
f73e07cf | 1897 | STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) |
0f113f3e MC |
1898 | { |
1899 | if (s != NULL) { | |
1900 | if (s->cipher_list_by_id != NULL) { | |
1901 | return (s->cipher_list_by_id); | |
1902 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) { | |
1903 | return (s->ctx->cipher_list_by_id); | |
1904 | } | |
1905 | } | |
1906 | return (NULL); | |
1907 | } | |
d02b48c6 | 1908 | |
4f43d0e7 | 1909 | /** The old interface to get the same thing as SSL_get_ciphers() */ |
0f113f3e MC |
1910 | const char *SSL_get_cipher_list(const SSL *s, int n) |
1911 | { | |
4a640fb6 | 1912 | const SSL_CIPHER *c; |
0f113f3e MC |
1913 | STACK_OF(SSL_CIPHER) *sk; |
1914 | ||
1915 | if (s == NULL) | |
1916 | return (NULL); | |
1917 | sk = SSL_get_ciphers(s); | |
1918 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) | |
1919 | return (NULL); | |
1920 | c = sk_SSL_CIPHER_value(sk, n); | |
1921 | if (c == NULL) | |
1922 | return (NULL); | |
1923 | return (c->name); | |
1924 | } | |
d02b48c6 | 1925 | |
9d5ac953 KY |
1926 | /** return a STACK of the ciphers available for the SSL_CTX and in order of |
1927 | * preference */ | |
1928 | STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx) | |
1929 | { | |
1930 | if (ctx != NULL) | |
1931 | return ctx->cipher_list; | |
1932 | return NULL; | |
1933 | } | |
1934 | ||
25f923dd | 1935 | /** specify the ciphers to be used by default by the SSL_CTX */ |
018e57c7 | 1936 | int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) |
0f113f3e MC |
1937 | { |
1938 | STACK_OF(SSL_CIPHER) *sk; | |
1939 | ||
1940 | sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, | |
1941 | &ctx->cipher_list_by_id, str, ctx->cert); | |
1942 | /* | |
1943 | * ssl_create_cipher_list may return an empty stack if it was unable to | |
1944 | * find a cipher matching the given rule string (for example if the rule | |
1945 | * string specifies a cipher which has been disabled). This is not an | |
1946 | * error as far as ssl_create_cipher_list is concerned, and hence | |
1947 | * ctx->cipher_list and ctx->cipher_list_by_id has been updated. | |
1948 | */ | |
1949 | if (sk == NULL) | |
1950 | return 0; | |
1951 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
1952 | SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
1953 | return 0; | |
1954 | } | |
1955 | return 1; | |
1956 | } | |
d02b48c6 | 1957 | |
4f43d0e7 | 1958 | /** specify the ciphers to be used by the SSL */ |
0f113f3e MC |
1959 | int SSL_set_cipher_list(SSL *s, const char *str) |
1960 | { | |
1961 | STACK_OF(SSL_CIPHER) *sk; | |
1962 | ||
1963 | sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, | |
1964 | &s->cipher_list_by_id, str, s->cert); | |
1965 | /* see comment in SSL_CTX_set_cipher_list */ | |
1966 | if (sk == NULL) | |
1967 | return 0; | |
1968 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
1969 | SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
1970 | return 0; | |
1971 | } | |
1972 | return 1; | |
1973 | } | |
d02b48c6 | 1974 | |
0f113f3e MC |
1975 | char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len) |
1976 | { | |
1977 | char *p; | |
1978 | STACK_OF(SSL_CIPHER) *sk; | |
4a640fb6 | 1979 | const SSL_CIPHER *c; |
0f113f3e MC |
1980 | int i; |
1981 | ||
1982 | if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2)) | |
1983 | return (NULL); | |
1984 | ||
1985 | p = buf; | |
1986 | sk = s->session->ciphers; | |
1987 | ||
1988 | if (sk_SSL_CIPHER_num(sk) == 0) | |
1989 | return NULL; | |
1990 | ||
1991 | for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { | |
1992 | int n; | |
1993 | ||
1994 | c = sk_SSL_CIPHER_value(sk, i); | |
1995 | n = strlen(c->name); | |
1996 | if (n + 1 > len) { | |
1997 | if (p != buf) | |
1998 | --p; | |
1999 | *p = '\0'; | |
2000 | return buf; | |
2001 | } | |
a89c9a0d | 2002 | memcpy(p, c->name, n + 1); |
0f113f3e MC |
2003 | p += n; |
2004 | *(p++) = ':'; | |
2005 | len -= n + 1; | |
2006 | } | |
2007 | p[-1] = '\0'; | |
2008 | return (buf); | |
2009 | } | |
2010 | ||
52b8dad8 | 2011 | /** return a servername extension value if provided in Client Hello, or NULL. |
f1fd4544 | 2012 | * So far, only host_name types are defined (RFC 3546). |
ed3883d2 BM |
2013 | */ |
2014 | ||
f1fd4544 | 2015 | const char *SSL_get_servername(const SSL *s, const int type) |
0f113f3e MC |
2016 | { |
2017 | if (type != TLSEXT_NAMETYPE_host_name) | |
2018 | return NULL; | |
a13c20f6 | 2019 | |
0f113f3e MC |
2020 | return s->session && !s->tlsext_hostname ? |
2021 | s->session->tlsext_hostname : s->tlsext_hostname; | |
2022 | } | |
ed3883d2 | 2023 | |
f1fd4544 | 2024 | int SSL_get_servername_type(const SSL *s) |
0f113f3e MC |
2025 | { |
2026 | if (s->session | |
2027 | && (!s->tlsext_hostname ? s->session-> | |
2028 | tlsext_hostname : s->tlsext_hostname)) | |
2029 | return TLSEXT_NAMETYPE_host_name; | |
2030 | return -1; | |
2031 | } | |
ee2ffc27 | 2032 | |
0f113f3e MC |
2033 | /* |
2034 | * SSL_select_next_proto implements the standard protocol selection. It is | |
ee2ffc27 | 2035 | * expected that this function is called from the callback set by |
0f113f3e MC |
2036 | * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a |
2037 | * vector of 8-bit, length prefixed byte strings. The length byte itself is | |
2038 | * not included in the length. A byte string of length 0 is invalid. No byte | |
2039 | * string may be truncated. The current, but experimental algorithm for | |
2040 | * selecting the protocol is: 1) If the server doesn't support NPN then this | |
2041 | * is indicated to the callback. In this case, the client application has to | |
2042 | * abort the connection or have a default application level protocol. 2) If | |
2043 | * the server supports NPN, but advertises an empty list then the client | |
2044 | * selects the first protcol in its list, but indicates via the API that this | |
2045 | * fallback case was enacted. 3) Otherwise, the client finds the first | |
2046 | * protocol in the server's list that it supports and selects this protocol. | |
2047 | * This is because it's assumed that the server has better information about | |
2048 | * which protocol a client should use. 4) If the client doesn't support any | |
2049 | * of the server's advertised protocols, then this is treated the same as | |
2050 | * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was | |
2051 | * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. | |
ee2ffc27 | 2052 | */ |
0f113f3e MC |
2053 | int SSL_select_next_proto(unsigned char **out, unsigned char *outlen, |
2054 | const unsigned char *server, | |
2055 | unsigned int server_len, | |
2056 | const unsigned char *client, | |
2057 | unsigned int client_len) | |
2058 | { | |
2059 | unsigned int i, j; | |
2060 | const unsigned char *result; | |
2061 | int status = OPENSSL_NPN_UNSUPPORTED; | |
2062 | ||
2063 | /* | |
2064 | * For each protocol in server preference order, see if we support it. | |
2065 | */ | |
2066 | for (i = 0; i < server_len;) { | |
2067 | for (j = 0; j < client_len;) { | |
2068 | if (server[i] == client[j] && | |
2069 | memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) { | |
2070 | /* We found a match */ | |
2071 | result = &server[i]; | |
2072 | status = OPENSSL_NPN_NEGOTIATED; | |
2073 | goto found; | |
2074 | } | |
2075 | j += client[j]; | |
2076 | j++; | |
2077 | } | |
2078 | i += server[i]; | |
2079 | i++; | |
2080 | } | |
2081 | ||
2082 | /* There's no overlap between our protocols and the server's list. */ | |
2083 | result = client; | |
2084 | status = OPENSSL_NPN_NO_OVERLAP; | |
2085 | ||
2086 | found: | |
2087 | *out = (unsigned char *)result + 1; | |
2088 | *outlen = result[0]; | |
2089 | return status; | |
2090 | } | |
ee2ffc27 | 2091 | |
e481f9b9 | 2092 | #ifndef OPENSSL_NO_NEXTPROTONEG |
0f113f3e MC |
2093 | /* |
2094 | * SSL_get0_next_proto_negotiated sets *data and *len to point to the | |
2095 | * client's requested protocol for this connection and returns 0. If the | |
2096 | * client didn't request any protocol, then *data is set to NULL. Note that | |
2097 | * the client can request any protocol it chooses. The value returned from | |
2098 | * this function need not be a member of the list of supported protocols | |
ee2ffc27 BL |
2099 | * provided by the callback. |
2100 | */ | |
0f113f3e MC |
2101 | void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, |
2102 | unsigned *len) | |
2103 | { | |
2104 | *data = s->next_proto_negotiated; | |
2105 | if (!*data) { | |
2106 | *len = 0; | |
2107 | } else { | |
2108 | *len = s->next_proto_negotiated_len; | |
2109 | } | |
2110 | } | |
2111 | ||
2112 | /* | |
2113 | * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when | |
2114 | * a TLS server needs a list of supported protocols for Next Protocol | |
2115 | * Negotiation. The returned list must be in wire format. The list is | |
2116 | * returned by setting |out| to point to it and |outlen| to its length. This | |
2117 | * memory will not be modified, but one should assume that the SSL* keeps a | |
2118 | * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it | |
2119 | * wishes to advertise. Otherwise, no such extension will be included in the | |
2120 | * ServerHello. | |
2121 | */ | |
2122 | void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, | |
2123 | int (*cb) (SSL *ssl, | |
2124 | const unsigned char | |
2125 | **out, | |
2126 | unsigned int *outlen, | |
2127 | void *arg), void *arg) | |
2128 | { | |
2129 | ctx->next_protos_advertised_cb = cb; | |
2130 | ctx->next_protos_advertised_cb_arg = arg; | |
2131 | } | |
2132 | ||
2133 | /* | |
2134 | * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a | |
ee2ffc27 BL |
2135 | * client needs to select a protocol from the server's provided list. |out| |
2136 | * must be set to point to the selected protocol (which may be within |in|). | |
0f113f3e MC |
2137 | * The length of the protocol name must be written into |outlen|. The |
2138 | * server's advertised protocols are provided in |in| and |inlen|. The | |
2139 | * callback can assume that |in| is syntactically valid. The client must | |
2140 | * select a protocol. It is fatal to the connection if this callback returns | |
2141 | * a value other than SSL_TLSEXT_ERR_OK. | |
ee2ffc27 | 2142 | */ |
0f113f3e MC |
2143 | void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, |
2144 | int (*cb) (SSL *s, unsigned char **out, | |
2145 | unsigned char *outlen, | |
2146 | const unsigned char *in, | |
2147 | unsigned int inlen, | |
2148 | void *arg), void *arg) | |
2149 | { | |
2150 | ctx->next_proto_select_cb = cb; | |
2151 | ctx->next_proto_select_cb_arg = arg; | |
2152 | } | |
e481f9b9 | 2153 | #endif |
a398f821 | 2154 | |
0f113f3e MC |
2155 | /* |
2156 | * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|. | |
6f017a8f | 2157 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2158 | * length-prefixed strings). Returns 0 on success. |
2159 | */ | |
2160 | int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, | |
817cd0d5 | 2161 | unsigned int protos_len) |
0f113f3e | 2162 | { |
25aaa98a | 2163 | OPENSSL_free(ctx->alpn_client_proto_list); |
817cd0d5 | 2164 | ctx->alpn_client_proto_list = OPENSSL_memdup(protos, protos_len); |
72e9be3d RS |
2165 | if (ctx->alpn_client_proto_list == NULL) { |
2166 | SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); | |
0f113f3e | 2167 | return 1; |
72e9be3d | 2168 | } |
0f113f3e MC |
2169 | ctx->alpn_client_proto_list_len = protos_len; |
2170 | ||
2171 | return 0; | |
2172 | } | |
2173 | ||
2174 | /* | |
2175 | * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|. | |
6f017a8f | 2176 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2177 | * length-prefixed strings). Returns 0 on success. |
2178 | */ | |
2179 | int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, | |
817cd0d5 | 2180 | unsigned int protos_len) |
0f113f3e | 2181 | { |
25aaa98a | 2182 | OPENSSL_free(ssl->alpn_client_proto_list); |
817cd0d5 | 2183 | ssl->alpn_client_proto_list = OPENSSL_memdup(protos, protos_len); |
72e9be3d RS |
2184 | if (ssl->alpn_client_proto_list == NULL) { |
2185 | SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); | |
0f113f3e | 2186 | return 1; |
72e9be3d | 2187 | } |
0f113f3e MC |
2188 | ssl->alpn_client_proto_list_len = protos_len; |
2189 | ||
2190 | return 0; | |
2191 | } | |
2192 | ||
2193 | /* | |
2194 | * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is | |
2195 | * called during ClientHello processing in order to select an ALPN protocol | |
2196 | * from the client's list of offered protocols. | |
2197 | */ | |
2198 | void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx, | |
2199 | int (*cb) (SSL *ssl, | |
2200 | const unsigned char **out, | |
2201 | unsigned char *outlen, | |
2202 | const unsigned char *in, | |
2203 | unsigned int inlen, | |
2204 | void *arg), void *arg) | |
2205 | { | |
2206 | ctx->alpn_select_cb = cb; | |
2207 | ctx->alpn_select_cb_arg = arg; | |
2208 | } | |
2209 | ||
2210 | /* | |
2211 | * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from | |
2212 | * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name | |
2213 | * (not including the leading length-prefix byte). If the server didn't | |
2214 | * respond with a negotiated protocol then |*len| will be zero. | |
2215 | */ | |
6f017a8f | 2216 | void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, |
817cd0d5 | 2217 | unsigned int *len) |
0f113f3e MC |
2218 | { |
2219 | *data = NULL; | |
2220 | if (ssl->s3) | |
2221 | *data = ssl->s3->alpn_selected; | |
2222 | if (*data == NULL) | |
2223 | *len = 0; | |
2224 | else | |
2225 | *len = ssl->s3->alpn_selected_len; | |
2226 | } | |
2227 | ||
f1fd4544 | 2228 | |
74b4b494 | 2229 | int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, |
0f113f3e MC |
2230 | const char *label, size_t llen, |
2231 | const unsigned char *p, size_t plen, | |
2232 | int use_context) | |
2233 | { | |
2234 | if (s->version < TLS1_VERSION) | |
2235 | return -1; | |
e0af0405 | 2236 | |
0f113f3e MC |
2237 | return s->method->ssl3_enc->export_keying_material(s, out, olen, label, |
2238 | llen, p, plen, | |
2239 | use_context); | |
2240 | } | |
e0af0405 | 2241 | |
3c1d6bbc | 2242 | static unsigned long ssl_session_hash(const SSL_SESSION *a) |
0f113f3e MC |
2243 | { |
2244 | unsigned long l; | |
2245 | ||
2246 | l = (unsigned long) | |
2247 | ((unsigned int)a->session_id[0]) | | |
2248 | ((unsigned int)a->session_id[1] << 8L) | | |
2249 | ((unsigned long)a->session_id[2] << 16L) | | |
2250 | ((unsigned long)a->session_id[3] << 24L); | |
2251 | return (l); | |
2252 | } | |
2253 | ||
2254 | /* | |
2255 | * NB: If this function (or indeed the hash function which uses a sort of | |
dc644fe2 | 2256 | * coarser function than this one) is changed, ensure |
0f113f3e MC |
2257 | * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on |
2258 | * being able to construct an SSL_SESSION that will collide with any existing | |
2259 | * session with a matching session ID. | |
2260 | */ | |
2261 | static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) | |
2262 | { | |
2263 | if (a->ssl_version != b->ssl_version) | |
2264 | return (1); | |
2265 | if (a->session_id_length != b->session_id_length) | |
2266 | return (1); | |
2267 | return (memcmp(a->session_id, b->session_id, a->session_id_length)); | |
2268 | } | |
2269 | ||
2270 | /* | |
2271 | * These wrapper functions should remain rather than redeclaring | |
d0fa136c | 2272 | * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each |
0f113f3e MC |
2273 | * variable. The reason is that the functions aren't static, they're exposed |
2274 | * via ssl.h. | |
2275 | */ | |
97b17195 | 2276 | |
4ebb342f | 2277 | SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth) |
0f113f3e MC |
2278 | { |
2279 | SSL_CTX *ret = NULL; | |
2280 | ||
2281 | if (meth == NULL) { | |
2282 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED); | |
2283 | return (NULL); | |
2284 | } | |
2285 | ||
0fc32b07 MC |
2286 | if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL)) |
2287 | return NULL; | |
7fa792d1 | 2288 | |
0f113f3e | 2289 | if (FIPS_mode() && (meth->version < TLS1_VERSION)) { |
4fa52141 | 2290 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_AT_LEAST_TLS_1_0_NEEDED_IN_FIPS_MODE); |
0f113f3e MC |
2291 | return NULL; |
2292 | } | |
2293 | ||
2294 | if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { | |
2295 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); | |
2296 | goto err; | |
2297 | } | |
b51bce94 | 2298 | ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e MC |
2299 | if (ret == NULL) |
2300 | goto err; | |
2301 | ||
0f113f3e | 2302 | ret->method = meth; |
7946ab33 KR |
2303 | ret->min_proto_version = 0; |
2304 | ret->max_proto_version = 0; | |
0f113f3e MC |
2305 | ret->session_cache_mode = SSL_SESS_CACHE_SERVER; |
2306 | ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; | |
64b25758 | 2307 | /* We take the system default. */ |
0f113f3e | 2308 | ret->session_timeout = meth->get_timeout(); |
0f113f3e | 2309 | ret->references = 1; |
16203f7b AG |
2310 | ret->lock = CRYPTO_THREAD_lock_new(); |
2311 | if (ret->lock == NULL) { | |
2312 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2313 | OPENSSL_free(ret); | |
2314 | return NULL; | |
2315 | } | |
0f113f3e | 2316 | ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; |
0f113f3e | 2317 | ret->verify_mode = SSL_VERIFY_NONE; |
0f113f3e MC |
2318 | if ((ret->cert = ssl_cert_new()) == NULL) |
2319 | goto err; | |
2320 | ||
62d0577e | 2321 | ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp); |
0f113f3e MC |
2322 | if (ret->sessions == NULL) |
2323 | goto err; | |
2324 | ret->cert_store = X509_STORE_new(); | |
2325 | if (ret->cert_store == NULL) | |
2326 | goto err; | |
ed29e82a RP |
2327 | #ifndef OPENSSL_NO_CT |
2328 | ret->ctlog_store = CTLOG_STORE_new(); | |
2329 | if (ret->ctlog_store == NULL) | |
2330 | goto err; | |
2331 | #endif | |
61986d32 | 2332 | if (!ssl_create_cipher_list(ret->method, |
0f113f3e | 2333 | &ret->cipher_list, &ret->cipher_list_by_id, |
69f68237 MC |
2334 | SSL_DEFAULT_CIPHER_LIST, ret->cert) |
2335 | || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { | |
0f113f3e MC |
2336 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS); |
2337 | goto err2; | |
2338 | } | |
2339 | ||
2340 | ret->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 2341 | if (ret->param == NULL) |
0f113f3e MC |
2342 | goto err; |
2343 | ||
2344 | if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) { | |
2345 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); | |
2346 | goto err2; | |
2347 | } | |
2348 | if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) { | |
2349 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); | |
2350 | goto err2; | |
2351 | } | |
2352 | ||
2353 | if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL) | |
2354 | goto err; | |
2355 | ||
25a807bc F |
2356 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) |
2357 | goto err; | |
0f113f3e | 2358 | |
0f113f3e MC |
2359 | /* No compression for DTLS */ |
2360 | if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)) | |
2361 | ret->comp_methods = SSL_COMP_get_compression_methods(); | |
2362 | ||
2363 | ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; | |
d102d9df | 2364 | ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; |
566dda07 | 2365 | |
4e2e1ec9 TS |
2366 | /* Setup RFC5077 ticket keys */ |
2367 | if ((RAND_bytes(ret->tlsext_tick_key_name, sizeof(ret->tlsext_tick_key_name)) <= 0) | |
2368 | || (RAND_bytes(ret->tlsext_tick_hmac_key, sizeof(ret->tlsext_tick_hmac_key)) <= 0) | |
2369 | || (RAND_bytes(ret->tlsext_tick_aes_key, sizeof(ret->tlsext_tick_aes_key)) <= 0)) | |
0f113f3e | 2370 | ret->options |= SSL_OP_NO_TICKET; |
6434abbf | 2371 | |
edc032b5 | 2372 | #ifndef OPENSSL_NO_SRP |
61986d32 | 2373 | if (!SSL_CTX_SRP_CTX_init(ret)) |
69f68237 | 2374 | goto err; |
edc032b5 | 2375 | #endif |
4db9677b | 2376 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e MC |
2377 | # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO |
2378 | # define eng_strx(x) #x | |
2379 | # define eng_str(x) eng_strx(x) | |
2380 | /* Use specific client engine automatically... ignore errors */ | |
2381 | { | |
2382 | ENGINE *eng; | |
2383 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2384 | if (!eng) { | |
2385 | ERR_clear_error(); | |
2386 | ENGINE_load_builtin_engines(); | |
2387 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2388 | } | |
2389 | if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) | |
2390 | ERR_clear_error(); | |
2391 | } | |
2392 | # endif | |
2393 | #endif | |
2394 | /* | |
2395 | * Default is to connect to non-RI servers. When RI is more widely | |
2396 | * deployed might change this. | |
2397 | */ | |
2398 | ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; | |
dc5744cb EK |
2399 | /* |
2400 | * Disable compression by default to prevent CRIME. Applications can | |
2401 | * re-enable compression by configuring | |
2402 | * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION); | |
2403 | * or by using the SSL_CONF library. | |
2404 | */ | |
2405 | ret->options |= SSL_OP_NO_COMPRESSION; | |
0f113f3e | 2406 | |
ba261f71 | 2407 | ret->tlsext_status_type = -1; |
2408 | ||
16203f7b | 2409 | return ret; |
0f113f3e MC |
2410 | err: |
2411 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2412 | err2: | |
e0e920b1 | 2413 | SSL_CTX_free(ret); |
16203f7b | 2414 | return NULL; |
0f113f3e | 2415 | } |
d02b48c6 | 2416 | |
c5ebfcab | 2417 | int SSL_CTX_up_ref(SSL_CTX *ctx) |
a18a31e4 | 2418 | { |
16203f7b | 2419 | int i; |
c5ebfcab F |
2420 | |
2421 | if (CRYPTO_atomic_add(&ctx->references, 1, &i, ctx->lock) <= 0) | |
2422 | return 0; | |
2423 | ||
2424 | REF_PRINT_COUNT("SSL_CTX", ctx); | |
2425 | REF_ASSERT_ISNT(i < 2); | |
2426 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
2427 | } |
2428 | ||
4f43d0e7 | 2429 | void SSL_CTX_free(SSL_CTX *a) |
0f113f3e MC |
2430 | { |
2431 | int i; | |
d02b48c6 | 2432 | |
0f113f3e MC |
2433 | if (a == NULL) |
2434 | return; | |
d02b48c6 | 2435 | |
16203f7b | 2436 | CRYPTO_atomic_add(&a->references, -1, &i, a->lock); |
f3f1cf84 | 2437 | REF_PRINT_COUNT("SSL_CTX", a); |
0f113f3e MC |
2438 | if (i > 0) |
2439 | return; | |
f3f1cf84 | 2440 | REF_ASSERT_ISNT(i < 0); |
0f113f3e | 2441 | |
222561fe | 2442 | X509_VERIFY_PARAM_free(a->param); |
919ba009 | 2443 | dane_ctx_final(&a->dane); |
0f113f3e MC |
2444 | |
2445 | /* | |
2446 | * Free internal session cache. However: the remove_cb() may reference | |
2447 | * the ex_data of SSL_CTX, thus the ex_data store can only be removed | |
2448 | * after the sessions were flushed. | |
2449 | * As the ex_data handling routines might also touch the session cache, | |
2450 | * the most secure solution seems to be: empty (flush) the cache, then | |
2451 | * free ex_data, then finally free the cache. | |
2452 | * (See ticket [openssl.org #212].) | |
2453 | */ | |
2454 | if (a->sessions != NULL) | |
2455 | SSL_CTX_flush_sessions(a, 0); | |
2456 | ||
2457 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); | |
25aaa98a | 2458 | lh_SSL_SESSION_free(a->sessions); |
222561fe | 2459 | X509_STORE_free(a->cert_store); |
ed29e82a RP |
2460 | #ifndef OPENSSL_NO_CT |
2461 | CTLOG_STORE_free(a->ctlog_store); | |
2462 | #endif | |
25aaa98a RS |
2463 | sk_SSL_CIPHER_free(a->cipher_list); |
2464 | sk_SSL_CIPHER_free(a->cipher_list_by_id); | |
e0e920b1 | 2465 | ssl_cert_free(a->cert); |
222561fe RS |
2466 | sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free); |
2467 | sk_X509_pop_free(a->extra_certs, X509_free); | |
0f113f3e | 2468 | a->comp_methods = NULL; |
e783bae2 | 2469 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 2470 | sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); |
e783bae2 | 2471 | #endif |
edc032b5 | 2472 | #ifndef OPENSSL_NO_SRP |
0f113f3e | 2473 | SSL_CTX_SRP_CTX_free(a); |
edc032b5 | 2474 | #endif |
bdfe932d | 2475 | #ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 2476 | ENGINE_finish(a->client_cert_engine); |
ddac1974 | 2477 | #endif |
8671b898 | 2478 | |
e481f9b9 | 2479 | #ifndef OPENSSL_NO_EC |
25aaa98a RS |
2480 | OPENSSL_free(a->tlsext_ecpointformatlist); |
2481 | OPENSSL_free(a->tlsext_ellipticcurvelist); | |
8671b898 | 2482 | #endif |
e481f9b9 | 2483 | OPENSSL_free(a->alpn_client_proto_list); |
8671b898 | 2484 | |
16203f7b AG |
2485 | CRYPTO_THREAD_lock_free(a->lock); |
2486 | ||
0f113f3e MC |
2487 | OPENSSL_free(a); |
2488 | } | |
d02b48c6 | 2489 | |
3ae76679 | 2490 | void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) |
0f113f3e MC |
2491 | { |
2492 | ctx->default_passwd_callback = cb; | |
2493 | } | |
2494 | ||
2495 | void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) | |
2496 | { | |
2497 | ctx->default_passwd_callback_userdata = u; | |
2498 | } | |
2499 | ||
0c452abc CH |
2500 | pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) |
2501 | { | |
2502 | return ctx->default_passwd_callback; | |
2503 | } | |
2504 | ||
2505 | void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) | |
2506 | { | |
2507 | return ctx->default_passwd_callback_userdata; | |
2508 | } | |
2509 | ||
a974e64a MC |
2510 | void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb) |
2511 | { | |
2512 | s->default_passwd_callback = cb; | |
2513 | } | |
2514 | ||
2515 | void SSL_set_default_passwd_cb_userdata(SSL *s, void *u) | |
2516 | { | |
2517 | s->default_passwd_callback_userdata = u; | |
2518 | } | |
2519 | ||
0c452abc CH |
2520 | pem_password_cb *SSL_get_default_passwd_cb(SSL *s) |
2521 | { | |
2522 | return s->default_passwd_callback; | |
2523 | } | |
2524 | ||
2525 | void *SSL_get_default_passwd_cb_userdata(SSL *s) | |
2526 | { | |
2527 | return s->default_passwd_callback_userdata; | |
2528 | } | |
2529 | ||
0f113f3e MC |
2530 | void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, |
2531 | int (*cb) (X509_STORE_CTX *, void *), | |
2532 | void *arg) | |
2533 | { | |
2534 | ctx->app_verify_callback = cb; | |
2535 | ctx->app_verify_arg = arg; | |
2536 | } | |
2537 | ||
2538 | void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, | |
2539 | int (*cb) (int, X509_STORE_CTX *)) | |
2540 | { | |
2541 | ctx->verify_mode = mode; | |
2542 | ctx->default_verify_callback = cb; | |
2543 | } | |
2544 | ||
2545 | void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) | |
2546 | { | |
2547 | X509_VERIFY_PARAM_set_depth(ctx->param, depth); | |
2548 | } | |
2549 | ||
2550 | void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), | |
2551 | void *arg) | |
2552 | { | |
2553 | ssl_cert_set_cert_cb(c->cert, cb, arg); | |
2554 | } | |
2555 | ||
2556 | void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg) | |
2557 | { | |
2558 | ssl_cert_set_cert_cb(s->cert, cb, arg); | |
2559 | } | |
18d71588 | 2560 | |
2cf28d61 | 2561 | void ssl_set_masks(SSL *s) |
0f113f3e | 2562 | { |
60f43e9e | 2563 | #if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_GOST) |
0f113f3e | 2564 | CERT_PKEY *cpk; |
60f43e9e | 2565 | #endif |
6383d316 | 2566 | CERT *c = s->cert; |
f7d53487 | 2567 | uint32_t *pvalid = s->s3->tmp.valid_flags; |
bc71f910 | 2568 | int rsa_enc, rsa_sign, dh_tmp, dsa_sign; |
361a1191 | 2569 | unsigned long mask_k, mask_a; |
10bf4fc2 | 2570 | #ifndef OPENSSL_NO_EC |
361a1191 | 2571 | int have_ecc_cert, ecdsa_ok; |
0f113f3e | 2572 | X509 *x = NULL; |
14536c8c | 2573 | #endif |
0f113f3e MC |
2574 | if (c == NULL) |
2575 | return; | |
d02b48c6 | 2576 | |
bc36ee62 | 2577 | #ifndef OPENSSL_NO_DH |
0f113f3e | 2578 | dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto); |
d02b48c6 | 2579 | #else |
361a1191 | 2580 | dh_tmp = 0; |
d02b48c6 RE |
2581 | #endif |
2582 | ||
6383d316 | 2583 | rsa_enc = pvalid[SSL_PKEY_RSA_ENC] & CERT_PKEY_VALID; |
6383d316 | 2584 | rsa_sign = pvalid[SSL_PKEY_RSA_SIGN] & CERT_PKEY_SIGN; |
6383d316 | 2585 | dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_SIGN; |
14536c8c | 2586 | #ifndef OPENSSL_NO_EC |
6383d316 | 2587 | have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID; |
14536c8c | 2588 | #endif |
0f113f3e MC |
2589 | mask_k = 0; |
2590 | mask_a = 0; | |
0e1dba93 | 2591 | |
d02b48c6 | 2592 | #ifdef CIPHER_DEBUG |
b7557ccf AG |
2593 | fprintf(stderr, "dht=%d re=%d rs=%d ds=%d\n", |
2594 | dh_tmp, rsa_enc, rsa_sign, dsa_sign); | |
0f113f3e MC |
2595 | #endif |
2596 | ||
2a9b9654 | 2597 | #ifndef OPENSSL_NO_GOST |
e44380a9 DB |
2598 | cpk = &(c->pkeys[SSL_PKEY_GOST12_512]); |
2599 | if (cpk->x509 != NULL && cpk->privatekey != NULL) { | |
2600 | mask_k |= SSL_kGOST; | |
2601 | mask_a |= SSL_aGOST12; | |
2602 | } | |
2603 | cpk = &(c->pkeys[SSL_PKEY_GOST12_256]); | |
2604 | if (cpk->x509 != NULL && cpk->privatekey != NULL) { | |
2605 | mask_k |= SSL_kGOST; | |
2606 | mask_a |= SSL_aGOST12; | |
2607 | } | |
0f113f3e MC |
2608 | cpk = &(c->pkeys[SSL_PKEY_GOST01]); |
2609 | if (cpk->x509 != NULL && cpk->privatekey != NULL) { | |
2610 | mask_k |= SSL_kGOST; | |
2611 | mask_a |= SSL_aGOST01; | |
2612 | } | |
2a9b9654 | 2613 | #endif |
0f113f3e | 2614 | |
361a1191 | 2615 | if (rsa_enc) |
0f113f3e | 2616 | mask_k |= SSL_kRSA; |
d02b48c6 | 2617 | |
0f113f3e MC |
2618 | if (dh_tmp) |
2619 | mask_k |= SSL_kDHE; | |
d02b48c6 | 2620 | |
0f113f3e MC |
2621 | if (rsa_enc || rsa_sign) { |
2622 | mask_a |= SSL_aRSA; | |
0f113f3e | 2623 | } |
d02b48c6 | 2624 | |
0f113f3e MC |
2625 | if (dsa_sign) { |
2626 | mask_a |= SSL_aDSS; | |
0f113f3e | 2627 | } |
d02b48c6 | 2628 | |
0f113f3e | 2629 | mask_a |= SSL_aNULL; |
d02b48c6 | 2630 | |
0f113f3e MC |
2631 | /* |
2632 | * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites | |
2633 | * depending on the key usage extension. | |
2634 | */ | |
14536c8c | 2635 | #ifndef OPENSSL_NO_EC |
0f113f3e | 2636 | if (have_ecc_cert) { |
a8d8e06b | 2637 | uint32_t ex_kusage; |
0f113f3e MC |
2638 | cpk = &c->pkeys[SSL_PKEY_ECC]; |
2639 | x = cpk->x509; | |
a8d8e06b | 2640 | ex_kusage = X509_get_key_usage(x); |
a8d8e06b | 2641 | ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE; |
6383d316 | 2642 | if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN)) |
0f113f3e | 2643 | ecdsa_ok = 0; |
c7c46256 | 2644 | if (ecdsa_ok) |
0f113f3e | 2645 | mask_a |= SSL_aECDSA; |
0f113f3e | 2646 | } |
14536c8c | 2647 | #endif |
ea262260 | 2648 | |
10bf4fc2 | 2649 | #ifndef OPENSSL_NO_EC |
fe6ef247 | 2650 | mask_k |= SSL_kECDHE; |
ea262260 | 2651 | #endif |
ddac1974 NL |
2652 | |
2653 | #ifndef OPENSSL_NO_PSK | |
0f113f3e MC |
2654 | mask_k |= SSL_kPSK; |
2655 | mask_a |= SSL_aPSK; | |
526f94ad DSH |
2656 | if (mask_k & SSL_kRSA) |
2657 | mask_k |= SSL_kRSAPSK; | |
2658 | if (mask_k & SSL_kDHE) | |
2659 | mask_k |= SSL_kDHEPSK; | |
2660 | if (mask_k & SSL_kECDHE) | |
2661 | mask_k |= SSL_kECDHEPSK; | |
ddac1974 NL |
2662 | #endif |
2663 | ||
4d69f9e6 DSH |
2664 | s->s3->tmp.mask_k = mask_k; |
2665 | s->s3->tmp.mask_a = mask_a; | |
0f113f3e | 2666 | } |
d02b48c6 | 2667 | |
ef236ec3 DSH |
2668 | #ifndef OPENSSL_NO_EC |
2669 | ||
a2f9200f | 2670 | int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) |
0f113f3e | 2671 | { |
ce0c1f2b | 2672 | if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aECDSA) { |
0f113f3e | 2673 | /* key usage, if present, must allow signing */ |
ce0c1f2b | 2674 | if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) { |
0f113f3e MC |
2675 | SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, |
2676 | SSL_R_ECC_CERT_NOT_FOR_SIGNING); | |
2677 | return 0; | |
2678 | } | |
2679 | } | |
0f113f3e MC |
2680 | return 1; /* all checks are ok */ |
2681 | } | |
ea262260 | 2682 | |
ef236ec3 DSH |
2683 | #endif |
2684 | ||
2daceb03 | 2685 | static int ssl_get_server_cert_index(const SSL *s) |
0f113f3e MC |
2686 | { |
2687 | int idx; | |
2688 | idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher); | |
2689 | if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509) | |
2690 | idx = SSL_PKEY_RSA_SIGN; | |
e44380a9 DB |
2691 | if (idx == SSL_PKEY_GOST_EC) { |
2692 | if (s->cert->pkeys[SSL_PKEY_GOST12_512].x509) | |
2693 | idx = SSL_PKEY_GOST12_512; | |
2694 | else if (s->cert->pkeys[SSL_PKEY_GOST12_256].x509) | |
2695 | idx = SSL_PKEY_GOST12_256; | |
2696 | else if (s->cert->pkeys[SSL_PKEY_GOST01].x509) | |
2697 | idx = SSL_PKEY_GOST01; | |
2698 | else | |
2699 | idx = -1; | |
2700 | } | |
0f113f3e MC |
2701 | if (idx == -1) |
2702 | SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR); | |
2703 | return idx; | |
2704 | } | |
a9e1c50b | 2705 | |
6383d316 | 2706 | CERT_PKEY *ssl_get_server_send_pkey(SSL *s) |
0f113f3e MC |
2707 | { |
2708 | CERT *c; | |
2709 | int i; | |
ea262260 | 2710 | |
0f113f3e MC |
2711 | c = s->cert; |
2712 | if (!s->s3 || !s->s3->tmp.new_cipher) | |
2713 | return NULL; | |
2cf28d61 | 2714 | ssl_set_masks(s); |
a9e1c50b | 2715 | |
0f113f3e | 2716 | i = ssl_get_server_cert_index(s); |
a9e1c50b | 2717 | |
0f113f3e MC |
2718 | /* This may or may not be an error. */ |
2719 | if (i < 0) | |
2720 | return NULL; | |
a9e1c50b | 2721 | |
0f113f3e MC |
2722 | /* May be NULL. */ |
2723 | return &c->pkeys[i]; | |
2724 | } | |
d02b48c6 | 2725 | |
0f113f3e MC |
2726 | EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, |
2727 | const EVP_MD **pmd) | |
2728 | { | |
2729 | unsigned long alg_a; | |
2730 | CERT *c; | |
2731 | int idx = -1; | |
d02b48c6 | 2732 | |
0f113f3e MC |
2733 | alg_a = cipher->algorithm_auth; |
2734 | c = s->cert; | |
d02b48c6 | 2735 | |
0f113f3e MC |
2736 | if ((alg_a & SSL_aDSS) && |
2737 | (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) | |
2738 | idx = SSL_PKEY_DSA_SIGN; | |
2739 | else if (alg_a & SSL_aRSA) { | |
2740 | if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) | |
2741 | idx = SSL_PKEY_RSA_SIGN; | |
2742 | else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) | |
2743 | idx = SSL_PKEY_RSA_ENC; | |
2744 | } else if ((alg_a & SSL_aECDSA) && | |
2745 | (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) | |
2746 | idx = SSL_PKEY_ECC; | |
2747 | if (idx == -1) { | |
2748 | SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR); | |
2749 | return (NULL); | |
2750 | } | |
2751 | if (pmd) | |
d376e57d | 2752 | *pmd = s->s3->tmp.md[idx]; |
0f113f3e MC |
2753 | return c->pkeys[idx].privatekey; |
2754 | } | |
d02b48c6 | 2755 | |
a398f821 | 2756 | int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, |
0f113f3e MC |
2757 | size_t *serverinfo_length) |
2758 | { | |
2759 | CERT *c = NULL; | |
2760 | int i = 0; | |
2761 | *serverinfo_length = 0; | |
2762 | ||
2763 | c = s->cert; | |
2764 | i = ssl_get_server_cert_index(s); | |
2765 | ||
2766 | if (i == -1) | |
2767 | return 0; | |
2768 | if (c->pkeys[i].serverinfo == NULL) | |
2769 | return 0; | |
2770 | ||
2771 | *serverinfo = c->pkeys[i].serverinfo; | |
2772 | *serverinfo_length = c->pkeys[i].serverinfo_length; | |
2773 | return 1; | |
2774 | } | |
0f113f3e MC |
2775 | |
2776 | void ssl_update_cache(SSL *s, int mode) | |
2777 | { | |
2778 | int i; | |
2779 | ||
2780 | /* | |
2781 | * If the session_id_length is 0, we are not supposed to cache it, and it | |
2782 | * would be rather hard to do anyway :-) | |
2783 | */ | |
2784 | if (s->session->session_id_length == 0) | |
2785 | return; | |
2786 | ||
2787 | i = s->session_ctx->session_cache_mode; | |
2788 | if ((i & mode) && (!s->hit) | |
2789 | && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) | |
2790 | || SSL_CTX_add_session(s->session_ctx, s->session)) | |
2791 | && (s->session_ctx->new_session_cb != NULL)) { | |
16203f7b | 2792 | SSL_SESSION_up_ref(s->session); |
0f113f3e MC |
2793 | if (!s->session_ctx->new_session_cb(s, s->session)) |
2794 | SSL_SESSION_free(s->session); | |
2795 | } | |
2796 | ||
2797 | /* auto flush every 255 connections */ | |
2798 | if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) { | |
2799 | if ((((mode & SSL_SESS_CACHE_CLIENT) | |
2800 | ? s->session_ctx->stats.sess_connect_good | |
2801 | : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) { | |
2802 | SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL)); | |
2803 | } | |
2804 | } | |
2805 | } | |
d02b48c6 | 2806 | |
ba168244 | 2807 | const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx) |
0f113f3e MC |
2808 | { |
2809 | return ctx->method; | |
2810 | } | |
ba168244 | 2811 | |
4ebb342f | 2812 | const SSL_METHOD *SSL_get_ssl_method(SSL *s) |
0f113f3e MC |
2813 | { |
2814 | return (s->method); | |
2815 | } | |
d02b48c6 | 2816 | |
4ebb342f | 2817 | int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) |
0f113f3e | 2818 | { |
0f113f3e MC |
2819 | int ret = 1; |
2820 | ||
2821 | if (s->method != meth) { | |
919ba009 VD |
2822 | const SSL_METHOD *sm = s->method; |
2823 | int (*hf)(SSL *) = s->handshake_func; | |
0f113f3e | 2824 | |
919ba009 | 2825 | if (sm->version == meth->version) |
0f113f3e MC |
2826 | s->method = meth; |
2827 | else { | |
919ba009 | 2828 | sm->ssl_free(s); |
0f113f3e MC |
2829 | s->method = meth; |
2830 | ret = s->method->ssl_new(s); | |
2831 | } | |
2832 | ||
919ba009 | 2833 | if (hf == sm->ssl_connect) |
0f113f3e | 2834 | s->handshake_func = meth->ssl_connect; |
919ba009 | 2835 | else if (hf == sm->ssl_accept) |
0f113f3e MC |
2836 | s->handshake_func = meth->ssl_accept; |
2837 | } | |
2838 | return (ret); | |
2839 | } | |
2840 | ||
2841 | int SSL_get_error(const SSL *s, int i) | |
2842 | { | |
2843 | int reason; | |
2844 | unsigned long l; | |
2845 | BIO *bio; | |
2846 | ||
2847 | if (i > 0) | |
2848 | return (SSL_ERROR_NONE); | |
2849 | ||
2850 | /* | |
2851 | * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc, | |
2852 | * where we do encode the error | |
2853 | */ | |
2854 | if ((l = ERR_peek_error()) != 0) { | |
2855 | if (ERR_GET_LIB(l) == ERR_LIB_SYS) | |
2856 | return (SSL_ERROR_SYSCALL); | |
2857 | else | |
2858 | return (SSL_ERROR_SSL); | |
2859 | } | |
2860 | ||
fc7f190c MC |
2861 | if (i < 0) { |
2862 | if (SSL_want_read(s)) { | |
2863 | bio = SSL_get_rbio(s); | |
2864 | if (BIO_should_read(bio)) | |
2865 | return (SSL_ERROR_WANT_READ); | |
2866 | else if (BIO_should_write(bio)) | |
2867 | /* | |
2868 | * This one doesn't make too much sense ... We never try to write | |
2869 | * to the rbio, and an application program where rbio and wbio | |
2870 | * are separate couldn't even know what it should wait for. | |
2871 | * However if we ever set s->rwstate incorrectly (so that we have | |
2872 | * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and | |
2873 | * wbio *are* the same, this test works around that bug; so it | |
2874 | * might be safer to keep it. | |
2875 | */ | |
2876 | return (SSL_ERROR_WANT_WRITE); | |
2877 | else if (BIO_should_io_special(bio)) { | |
2878 | reason = BIO_get_retry_reason(bio); | |
2879 | if (reason == BIO_RR_CONNECT) | |
2880 | return (SSL_ERROR_WANT_CONNECT); | |
2881 | else if (reason == BIO_RR_ACCEPT) | |
2882 | return (SSL_ERROR_WANT_ACCEPT); | |
2883 | else | |
2884 | return (SSL_ERROR_SYSCALL); /* unknown */ | |
2885 | } | |
0f113f3e | 2886 | } |
0f113f3e | 2887 | |
fc7f190c MC |
2888 | if (SSL_want_write(s)) { |
2889 | bio = SSL_get_wbio(s); | |
2890 | if (BIO_should_write(bio)) | |
2891 | return (SSL_ERROR_WANT_WRITE); | |
2892 | else if (BIO_should_read(bio)) | |
2893 | /* | |
2894 | * See above (SSL_want_read(s) with BIO_should_write(bio)) | |
2895 | */ | |
2896 | return (SSL_ERROR_WANT_READ); | |
2897 | else if (BIO_should_io_special(bio)) { | |
2898 | reason = BIO_get_retry_reason(bio); | |
2899 | if (reason == BIO_RR_CONNECT) | |
2900 | return (SSL_ERROR_WANT_CONNECT); | |
2901 | else if (reason == BIO_RR_ACCEPT) | |
2902 | return (SSL_ERROR_WANT_ACCEPT); | |
2903 | else | |
2904 | return (SSL_ERROR_SYSCALL); | |
2905 | } | |
2906 | } | |
2907 | if (SSL_want_x509_lookup(s)) { | |
2908 | return (SSL_ERROR_WANT_X509_LOOKUP); | |
2909 | } | |
2910 | if (SSL_want_async(s)) { | |
2911 | return SSL_ERROR_WANT_ASYNC; | |
2912 | } | |
2913 | if (SSL_want_async_job(s)) { | |
2914 | return SSL_ERROR_WANT_ASYNC_JOB; | |
0f113f3e | 2915 | } |
07bbc92c | 2916 | } |
0f113f3e MC |
2917 | |
2918 | if (i == 0) { | |
2919 | if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && | |
2920 | (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) | |
2921 | return (SSL_ERROR_ZERO_RETURN); | |
2922 | } | |
2923 | return (SSL_ERROR_SYSCALL); | |
2924 | } | |
d02b48c6 | 2925 | |
add2f5ca MC |
2926 | static int ssl_do_handshake_intern(void *vargs) |
2927 | { | |
2928 | struct ssl_async_args *args; | |
2929 | SSL *s; | |
2930 | ||
2931 | args = (struct ssl_async_args *)vargs; | |
2932 | s = args->s; | |
2933 | ||
2934 | return s->handshake_func(s); | |
2935 | } | |
2936 | ||
4f43d0e7 | 2937 | int SSL_do_handshake(SSL *s) |
0f113f3e MC |
2938 | { |
2939 | int ret = 1; | |
2940 | ||
2941 | if (s->handshake_func == NULL) { | |
2942 | SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET); | |
add2f5ca | 2943 | return -1; |
0f113f3e MC |
2944 | } |
2945 | ||
2946 | s->method->ssl_renegotiate_check(s); | |
2947 | ||
2948 | if (SSL_in_init(s) || SSL_in_before(s)) { | |
add2f5ca MC |
2949 | if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
2950 | struct ssl_async_args args; | |
2951 | ||
2952 | args.s = s; | |
2953 | ||
7fecbf6f | 2954 | ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern); |
add2f5ca MC |
2955 | } else { |
2956 | ret = s->handshake_func(s); | |
2957 | } | |
0f113f3e | 2958 | } |
add2f5ca | 2959 | return ret; |
0f113f3e MC |
2960 | } |
2961 | ||
4f43d0e7 | 2962 | void SSL_set_accept_state(SSL *s) |
0f113f3e MC |
2963 | { |
2964 | s->server = 1; | |
2965 | s->shutdown = 0; | |
fe3a3291 | 2966 | ossl_statem_clear(s); |
0f113f3e | 2967 | s->handshake_func = s->method->ssl_accept; |
d31fb0b5 | 2968 | clear_ciphers(s); |
0f113f3e | 2969 | } |
d02b48c6 | 2970 | |
4f43d0e7 | 2971 | void SSL_set_connect_state(SSL *s) |
0f113f3e MC |
2972 | { |
2973 | s->server = 0; | |
2974 | s->shutdown = 0; | |
fe3a3291 | 2975 | ossl_statem_clear(s); |
0f113f3e | 2976 | s->handshake_func = s->method->ssl_connect; |
d31fb0b5 | 2977 | clear_ciphers(s); |
0f113f3e | 2978 | } |
d02b48c6 | 2979 | |
4f43d0e7 | 2980 | int ssl_undefined_function(SSL *s) |
0f113f3e MC |
2981 | { |
2982 | SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
2983 | return (0); | |
2984 | } | |
d02b48c6 | 2985 | |
41a15c4f | 2986 | int ssl_undefined_void_function(void) |
0f113f3e MC |
2987 | { |
2988 | SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION, | |
2989 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
2990 | return (0); | |
2991 | } | |
41a15c4f | 2992 | |
0821bcd4 | 2993 | int ssl_undefined_const_function(const SSL *s) |
0f113f3e | 2994 | { |
0f113f3e MC |
2995 | return (0); |
2996 | } | |
0821bcd4 | 2997 | |
2b8fa1d5 | 2998 | const SSL_METHOD *ssl_bad_method(int ver) |
0f113f3e MC |
2999 | { |
3000 | SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3001 | return (NULL); | |
3002 | } | |
d02b48c6 | 3003 | |
3eb2aff4 | 3004 | const char *ssl_protocol_to_string(int version) |
7d650072 KR |
3005 | { |
3006 | if (version == TLS1_2_VERSION) | |
3007 | return "TLSv1.2"; | |
3008 | else if (version == TLS1_1_VERSION) | |
3009 | return "TLSv1.1"; | |
3010 | else if (version == TLS1_VERSION) | |
ee3a6c64 | 3011 | return "TLSv1"; |
7d650072 KR |
3012 | else if (version == SSL3_VERSION) |
3013 | return "SSLv3"; | |
3014 | else if (version == DTLS1_BAD_VER) | |
3015 | return "DTLSv0.9"; | |
3016 | else if (version == DTLS1_VERSION) | |
3017 | return "DTLSv1"; | |
3018 | else if (version == DTLS1_2_VERSION) | |
3019 | return "DTLSv1.2"; | |
0f113f3e MC |
3020 | else |
3021 | return ("unknown"); | |
3022 | } | |
d02b48c6 | 3023 | |
7d650072 KR |
3024 | const char *SSL_get_version(const SSL *s) |
3025 | { | |
3eb2aff4 | 3026 | return ssl_protocol_to_string(s->version); |
7d650072 KR |
3027 | } |
3028 | ||
4f43d0e7 | 3029 | SSL *SSL_dup(SSL *s) |
0f113f3e MC |
3030 | { |
3031 | STACK_OF(X509_NAME) *sk; | |
3032 | X509_NAME *xn; | |
3033 | SSL *ret; | |
3034 | int i; | |
3035 | ||
919ba009 VD |
3036 | /* If we're not quiescent, just up_ref! */ |
3037 | if (!SSL_in_init(s) || !SSL_in_before(s)) { | |
16203f7b | 3038 | CRYPTO_atomic_add(&s->references, 1, &i, s->lock); |
919ba009 VD |
3039 | return s; |
3040 | } | |
3041 | ||
3042 | /* | |
3043 | * Otherwise, copy configuration state, and session if set. | |
3044 | */ | |
0f113f3e MC |
3045 | if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) |
3046 | return (NULL); | |
3047 | ||
0f113f3e | 3048 | if (s->session != NULL) { |
919ba009 VD |
3049 | /* |
3050 | * Arranges to share the same session via up_ref. This "copies" | |
3051 | * session-id, SSL_METHOD, sid_ctx, and 'cert' | |
3052 | */ | |
61986d32 | 3053 | if (!SSL_copy_session_id(ret, s)) |
17dd65e6 | 3054 | goto err; |
0f113f3e MC |
3055 | } else { |
3056 | /* | |
3057 | * No session has been established yet, so we have to expect that | |
3058 | * s->cert or ret->cert will be changed later -- they should not both | |
3059 | * point to the same object, and thus we can't use | |
3060 | * SSL_copy_session_id. | |
3061 | */ | |
919ba009 VD |
3062 | if (!SSL_set_ssl_method(ret, s->method)) |
3063 | goto err; | |
0f113f3e MC |
3064 | |
3065 | if (s->cert != NULL) { | |
e0e920b1 | 3066 | ssl_cert_free(ret->cert); |
0f113f3e MC |
3067 | ret->cert = ssl_cert_dup(s->cert); |
3068 | if (ret->cert == NULL) | |
3069 | goto err; | |
3070 | } | |
3071 | ||
61986d32 | 3072 | if (!SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length)) |
69f68237 | 3073 | goto err; |
0f113f3e MC |
3074 | } |
3075 | ||
9f6b22b8 VD |
3076 | if (!ssl_dane_dup(ret, s)) |
3077 | goto err; | |
919ba009 | 3078 | ret->version = s->version; |
0f113f3e MC |
3079 | ret->options = s->options; |
3080 | ret->mode = s->mode; | |
3081 | SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); | |
3082 | SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); | |
3083 | ret->msg_callback = s->msg_callback; | |
3084 | ret->msg_callback_arg = s->msg_callback_arg; | |
3085 | SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s)); | |
3086 | SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); | |
3087 | ret->generate_session_id = s->generate_session_id; | |
3088 | ||
3089 | SSL_set_info_callback(ret, SSL_get_info_callback(s)); | |
3090 | ||
0f113f3e MC |
3091 | /* copy app data, a little dangerous perhaps */ |
3092 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) | |
3093 | goto err; | |
3094 | ||
3095 | /* setup rbio, and wbio */ | |
3096 | if (s->rbio != NULL) { | |
3097 | if (!BIO_dup_state(s->rbio, (char *)&ret->rbio)) | |
3098 | goto err; | |
3099 | } | |
3100 | if (s->wbio != NULL) { | |
3101 | if (s->wbio != s->rbio) { | |
3102 | if (!BIO_dup_state(s->wbio, (char *)&ret->wbio)) | |
3103 | goto err; | |
3104 | } else | |
3105 | ret->wbio = ret->rbio; | |
3106 | } | |
919ba009 | 3107 | |
0f113f3e | 3108 | ret->server = s->server; |
919ba009 VD |
3109 | if (s->handshake_func) { |
3110 | if (s->server) | |
3111 | SSL_set_accept_state(ret); | |
3112 | else | |
3113 | SSL_set_connect_state(ret); | |
3114 | } | |
0f113f3e | 3115 | ret->shutdown = s->shutdown; |
0f113f3e MC |
3116 | ret->hit = s->hit; |
3117 | ||
a974e64a MC |
3118 | ret->default_passwd_callback = s->default_passwd_callback; |
3119 | ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata; | |
3120 | ||
0f113f3e MC |
3121 | X509_VERIFY_PARAM_inherit(ret->param, s->param); |
3122 | ||
3123 | /* dup the cipher_list and cipher_list_by_id stacks */ | |
3124 | if (s->cipher_list != NULL) { | |
3125 | if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) | |
3126 | goto err; | |
3127 | } | |
3128 | if (s->cipher_list_by_id != NULL) | |
3129 | if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id)) | |
3130 | == NULL) | |
3131 | goto err; | |
3132 | ||
3133 | /* Dup the client_CA list */ | |
3134 | if (s->client_CA != NULL) { | |
3135 | if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL) | |
3136 | goto err; | |
3137 | ret->client_CA = sk; | |
3138 | for (i = 0; i < sk_X509_NAME_num(sk); i++) { | |
3139 | xn = sk_X509_NAME_value(sk, i); | |
3140 | if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) { | |
3141 | X509_NAME_free(xn); | |
3142 | goto err; | |
3143 | } | |
3144 | } | |
3145 | } | |
66696478 | 3146 | return ret; |
0f113f3e | 3147 | |
0f113f3e | 3148 | err: |
66696478 RS |
3149 | SSL_free(ret); |
3150 | return NULL; | |
0f113f3e | 3151 | } |
d02b48c6 | 3152 | |
4f43d0e7 | 3153 | void ssl_clear_cipher_ctx(SSL *s) |
0f113f3e MC |
3154 | { |
3155 | if (s->enc_read_ctx != NULL) { | |
846ec07d | 3156 | EVP_CIPHER_CTX_free(s->enc_read_ctx); |
0f113f3e MC |
3157 | s->enc_read_ctx = NULL; |
3158 | } | |
3159 | if (s->enc_write_ctx != NULL) { | |
846ec07d | 3160 | EVP_CIPHER_CTX_free(s->enc_write_ctx); |
0f113f3e MC |
3161 | s->enc_write_ctx = NULL; |
3162 | } | |
09b6c2ef | 3163 | #ifndef OPENSSL_NO_COMP |
efa7dd64 RS |
3164 | COMP_CTX_free(s->expand); |
3165 | s->expand = NULL; | |
3166 | COMP_CTX_free(s->compress); | |
3167 | s->compress = NULL; | |
0f113f3e MC |
3168 | #endif |
3169 | } | |
d02b48c6 | 3170 | |
0821bcd4 | 3171 | X509 *SSL_get_certificate(const SSL *s) |
0f113f3e MC |
3172 | { |
3173 | if (s->cert != NULL) | |
3174 | return (s->cert->key->x509); | |
3175 | else | |
3176 | return (NULL); | |
3177 | } | |
d02b48c6 | 3178 | |
a25f9adc | 3179 | EVP_PKEY *SSL_get_privatekey(const SSL *s) |
0f113f3e MC |
3180 | { |
3181 | if (s->cert != NULL) | |
3182 | return (s->cert->key->privatekey); | |
3183 | else | |
3184 | return (NULL); | |
3185 | } | |
d02b48c6 | 3186 | |
a25f9adc | 3187 | X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx) |
0f113f3e MC |
3188 | { |
3189 | if (ctx->cert != NULL) | |
3190 | return ctx->cert->key->x509; | |
3191 | else | |
3192 | return NULL; | |
3193 | } | |
a25f9adc DSH |
3194 | |
3195 | EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx) | |
0f113f3e MC |
3196 | { |
3197 | if (ctx->cert != NULL) | |
3198 | return ctx->cert->key->privatekey; | |
3199 | else | |
3200 | return NULL; | |
3201 | } | |
a25f9adc | 3202 | |
babb3798 | 3203 | const SSL_CIPHER *SSL_get_current_cipher(const SSL *s) |
0f113f3e MC |
3204 | { |
3205 | if ((s->session != NULL) && (s->session->cipher != NULL)) | |
3206 | return (s->session->cipher); | |
3207 | return (NULL); | |
3208 | } | |
3209 | ||
377dcdba | 3210 | const COMP_METHOD *SSL_get_current_compression(SSL *s) |
0f113f3e | 3211 | { |
9a555706 RS |
3212 | #ifndef OPENSSL_NO_COMP |
3213 | return s->compress ? COMP_CTX_get_method(s->compress) : NULL; | |
3214 | #else | |
3215 | return NULL; | |
3216 | #endif | |
0f113f3e | 3217 | } |
377dcdba RL |
3218 | |
3219 | const COMP_METHOD *SSL_get_current_expansion(SSL *s) | |
0f113f3e | 3220 | { |
9a555706 RS |
3221 | #ifndef OPENSSL_NO_COMP |
3222 | return s->expand ? COMP_CTX_get_method(s->expand) : NULL; | |
3223 | #else | |
3224 | return NULL; | |
0f113f3e | 3225 | #endif |
9a555706 | 3226 | } |
0f113f3e | 3227 | |
46417569 | 3228 | int ssl_init_wbio_buffer(SSL *s) |
0f113f3e MC |
3229 | { |
3230 | BIO *bbio; | |
3231 | ||
3232 | if (s->bbio == NULL) { | |
3233 | bbio = BIO_new(BIO_f_buffer()); | |
3234 | if (bbio == NULL) | |
46417569 | 3235 | return 0; |
0f113f3e | 3236 | s->bbio = bbio; |
46417569 | 3237 | s->wbio = BIO_push(bbio, s->wbio); |
0f113f3e MC |
3238 | } else { |
3239 | bbio = s->bbio; | |
46417569 | 3240 | (void)BIO_reset(bbio); |
0f113f3e | 3241 | } |
46417569 | 3242 | |
0f113f3e MC |
3243 | if (!BIO_set_read_buffer_size(bbio, 1)) { |
3244 | SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB); | |
46417569 | 3245 | return 0; |
0f113f3e | 3246 | } |
46417569 MC |
3247 | |
3248 | return 1; | |
0f113f3e | 3249 | } |
413c4f45 | 3250 | |
4f43d0e7 | 3251 | void ssl_free_wbio_buffer(SSL *s) |
0f113f3e | 3252 | { |
62adbcee | 3253 | /* callers ensure s is never null */ |
0f113f3e MC |
3254 | if (s->bbio == NULL) |
3255 | return; | |
3256 | ||
3257 | if (s->bbio == s->wbio) { | |
3258 | /* remove buffering */ | |
3259 | s->wbio = BIO_pop(s->wbio); | |
0f113f3e | 3260 | assert(s->wbio != NULL); |
0f113f3e MC |
3261 | } |
3262 | BIO_free(s->bbio); | |
3263 | s->bbio = NULL; | |
3264 | } | |
3265 | ||
3266 | void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) | |
3267 | { | |
3268 | ctx->quiet_shutdown = mode; | |
3269 | } | |
58964a49 | 3270 | |
0821bcd4 | 3271 | int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) |
0f113f3e MC |
3272 | { |
3273 | return (ctx->quiet_shutdown); | |
3274 | } | |
58964a49 | 3275 | |
0f113f3e MC |
3276 | void SSL_set_quiet_shutdown(SSL *s, int mode) |
3277 | { | |
3278 | s->quiet_shutdown = mode; | |
3279 | } | |
58964a49 | 3280 | |
0821bcd4 | 3281 | int SSL_get_quiet_shutdown(const SSL *s) |
0f113f3e MC |
3282 | { |
3283 | return (s->quiet_shutdown); | |
3284 | } | |
58964a49 | 3285 | |
0f113f3e MC |
3286 | void SSL_set_shutdown(SSL *s, int mode) |
3287 | { | |
3288 | s->shutdown = mode; | |
3289 | } | |
58964a49 | 3290 | |
0821bcd4 | 3291 | int SSL_get_shutdown(const SSL *s) |
0f113f3e | 3292 | { |
6546e9b2 | 3293 | return s->shutdown; |
0f113f3e | 3294 | } |
58964a49 | 3295 | |
0821bcd4 | 3296 | int SSL_version(const SSL *s) |
0f113f3e | 3297 | { |
6546e9b2 AG |
3298 | return s->version; |
3299 | } | |
3300 | ||
3301 | int SSL_client_version(const SSL *s) | |
3302 | { | |
3303 | return s->client_version; | |
0f113f3e | 3304 | } |
58964a49 | 3305 | |
0821bcd4 | 3306 | SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) |
0f113f3e | 3307 | { |
6546e9b2 | 3308 | return ssl->ctx; |
0f113f3e MC |
3309 | } |
3310 | ||
3311 | SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx) | |
3312 | { | |
24a0d393 | 3313 | CERT *new_cert; |
0f113f3e MC |
3314 | if (ssl->ctx == ctx) |
3315 | return ssl->ctx; | |
0f113f3e MC |
3316 | if (ctx == NULL) |
3317 | ctx = ssl->initial_ctx; | |
24a0d393 KR |
3318 | new_cert = ssl_cert_dup(ctx->cert); |
3319 | if (new_cert == NULL) { | |
3320 | return NULL; | |
0f113f3e | 3321 | } |
24a0d393 KR |
3322 | ssl_cert_free(ssl->cert); |
3323 | ssl->cert = new_cert; | |
0f113f3e MC |
3324 | |
3325 | /* | |
3326 | * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH), | |
3327 | * so setter APIs must prevent invalid lengths from entering the system. | |
3328 | */ | |
3329 | OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx)); | |
3330 | ||
3331 | /* | |
3332 | * If the session ID context matches that of the parent SSL_CTX, | |
3333 | * inherit it from the new SSL_CTX as well. If however the context does | |
3334 | * not match (i.e., it was set per-ssl with SSL_set_session_id_context), | |
3335 | * leave it unchanged. | |
3336 | */ | |
3337 | if ((ssl->ctx != NULL) && | |
3338 | (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) && | |
3339 | (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) { | |
3340 | ssl->sid_ctx_length = ctx->sid_ctx_length; | |
3341 | memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx)); | |
3342 | } | |
3343 | ||
16203f7b | 3344 | SSL_CTX_up_ref(ctx); |
e0e920b1 | 3345 | SSL_CTX_free(ssl->ctx); /* decrement reference count */ |
0f113f3e MC |
3346 | ssl->ctx = ctx; |
3347 | ||
16203f7b | 3348 | return ssl->ctx; |
0f113f3e | 3349 | } |
ed3883d2 | 3350 | |
4f43d0e7 | 3351 | int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) |
0f113f3e MC |
3352 | { |
3353 | return (X509_STORE_set_default_paths(ctx->cert_store)); | |
3354 | } | |
58964a49 | 3355 | |
d84a7b20 MC |
3356 | int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx) |
3357 | { | |
3358 | X509_LOOKUP *lookup; | |
3359 | ||
3360 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir()); | |
3361 | if (lookup == NULL) | |
3362 | return 0; | |
3363 | X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT); | |
3364 | ||
3365 | /* Clear any errors if the default directory does not exist */ | |
3366 | ERR_clear_error(); | |
3367 | ||
3368 | return 1; | |
3369 | } | |
3370 | ||
3371 | int SSL_CTX_set_default_verify_file(SSL_CTX *ctx) | |
3372 | { | |
3373 | X509_LOOKUP *lookup; | |
3374 | ||
3375 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file()); | |
3376 | if (lookup == NULL) | |
3377 | return 0; | |
3378 | ||
3379 | X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT); | |
3380 | ||
3381 | /* Clear any errors if the default file does not exist */ | |
3382 | ERR_clear_error(); | |
3383 | ||
3384 | return 1; | |
3385 | } | |
3386 | ||
303c0028 | 3387 | int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, |
0f113f3e MC |
3388 | const char *CApath) |
3389 | { | |
3390 | return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); | |
3391 | } | |
58964a49 | 3392 | |
45d87a1f | 3393 | void SSL_set_info_callback(SSL *ssl, |
0f113f3e MC |
3394 | void (*cb) (const SSL *ssl, int type, int val)) |
3395 | { | |
3396 | ssl->info_callback = cb; | |
3397 | } | |
3398 | ||
3399 | /* | |
3400 | * One compiler (Diab DCC) doesn't like argument names in returned function | |
3401 | * pointer. | |
3402 | */ | |
3403 | void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ , | |
3404 | int /* type */ , | |
3405 | int /* val */ ) { | |
3406 | return ssl->info_callback; | |
3407 | } | |
58964a49 | 3408 | |
0f113f3e MC |
3409 | void SSL_set_verify_result(SSL *ssl, long arg) |
3410 | { | |
3411 | ssl->verify_result = arg; | |
3412 | } | |
58964a49 | 3413 | |
0821bcd4 | 3414 | long SSL_get_verify_result(const SSL *ssl) |
0f113f3e MC |
3415 | { |
3416 | return (ssl->verify_result); | |
3417 | } | |
3418 | ||
d9f1c639 | 3419 | size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 3420 | { |
6b8f5d0d | 3421 | if (outlen == 0) |
858618e7 NM |
3422 | return sizeof(ssl->s3->client_random); |
3423 | if (outlen > sizeof(ssl->s3->client_random)) | |
3424 | outlen = sizeof(ssl->s3->client_random); | |
3425 | memcpy(out, ssl->s3->client_random, outlen); | |
d9f1c639 | 3426 | return outlen; |
858618e7 NM |
3427 | } |
3428 | ||
d9f1c639 | 3429 | size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 3430 | { |
6b8f5d0d | 3431 | if (outlen == 0) |
858618e7 NM |
3432 | return sizeof(ssl->s3->server_random); |
3433 | if (outlen > sizeof(ssl->s3->server_random)) | |
3434 | outlen = sizeof(ssl->s3->server_random); | |
3435 | memcpy(out, ssl->s3->server_random, outlen); | |
d9f1c639 | 3436 | return outlen; |
858618e7 NM |
3437 | } |
3438 | ||
d9f1c639 | 3439 | size_t SSL_SESSION_get_master_key(const SSL_SESSION *session, |
6b8f5d0d | 3440 | unsigned char *out, size_t outlen) |
858618e7 | 3441 | { |
6b8f5d0d MC |
3442 | if (session->master_key_length < 0) { |
3443 | /* Should never happen */ | |
3444 | return 0; | |
3445 | } | |
d9f1c639 MC |
3446 | if (outlen == 0) |
3447 | return session->master_key_length; | |
6b8f5d0d | 3448 | if (outlen > (size_t)session->master_key_length) |
858618e7 NM |
3449 | outlen = session->master_key_length; |
3450 | memcpy(out, session->master_key, outlen); | |
d9f1c639 | 3451 | return outlen; |
858618e7 NM |
3452 | } |
3453 | ||
0f113f3e MC |
3454 | int SSL_set_ex_data(SSL *s, int idx, void *arg) |
3455 | { | |
3456 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | |
3457 | } | |
3458 | ||
3459 | void *SSL_get_ex_data(const SSL *s, int idx) | |
3460 | { | |
3461 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | |
3462 | } | |
3463 | ||
0f113f3e MC |
3464 | int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) |
3465 | { | |
3466 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | |
3467 | } | |
3468 | ||
3469 | void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) | |
3470 | { | |
3471 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | |
3472 | } | |
58964a49 | 3473 | |
4f43d0e7 | 3474 | int ssl_ok(SSL *s) |
0f113f3e MC |
3475 | { |
3476 | return (1); | |
3477 | } | |
dfeab068 | 3478 | |
0821bcd4 | 3479 | X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) |
0f113f3e MC |
3480 | { |
3481 | return (ctx->cert_store); | |
3482 | } | |
413c4f45 | 3483 | |
0f113f3e MC |
3484 | void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) |
3485 | { | |
222561fe | 3486 | X509_STORE_free(ctx->cert_store); |
0f113f3e MC |
3487 | ctx->cert_store = store; |
3488 | } | |
413c4f45 | 3489 | |
0821bcd4 | 3490 | int SSL_want(const SSL *s) |
0f113f3e MC |
3491 | { |
3492 | return (s->rwstate); | |
3493 | } | |
413c4f45 | 3494 | |
0f113f3e | 3495 | /** |
4f43d0e7 BL |
3496 | * \brief Set the callback for generating temporary DH keys. |
3497 | * \param ctx the SSL context. | |
3498 | * \param dh the callback | |
3499 | */ | |
3500 | ||
bc36ee62 | 3501 | #ifndef OPENSSL_NO_DH |
0f113f3e MC |
3502 | void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, |
3503 | DH *(*dh) (SSL *ssl, int is_export, | |
3504 | int keylength)) | |
3505 | { | |
3506 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3507 | } | |
f8c3c05d | 3508 | |
0f113f3e MC |
3509 | void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export, |
3510 | int keylength)) | |
3511 | { | |
3512 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3513 | } | |
79df9d62 | 3514 | #endif |
15d21c2d | 3515 | |
ddac1974 NL |
3516 | #ifndef OPENSSL_NO_PSK |
3517 | int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) | |
0f113f3e MC |
3518 | { |
3519 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { | |
3520 | SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, | |
3521 | SSL_R_DATA_LENGTH_TOO_LONG); | |
3522 | return 0; | |
3523 | } | |
df6da24b | 3524 | OPENSSL_free(ctx->cert->psk_identity_hint); |
0f113f3e | 3525 | if (identity_hint != NULL) { |
7644a9ae | 3526 | ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 3527 | if (ctx->cert->psk_identity_hint == NULL) |
0f113f3e MC |
3528 | return 0; |
3529 | } else | |
df6da24b | 3530 | ctx->cert->psk_identity_hint = NULL; |
0f113f3e MC |
3531 | return 1; |
3532 | } | |
ddac1974 NL |
3533 | |
3534 | int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) | |
0f113f3e MC |
3535 | { |
3536 | if (s == NULL) | |
3537 | return 0; | |
3538 | ||
0f113f3e MC |
3539 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { |
3540 | SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); | |
3541 | return 0; | |
3542 | } | |
df6da24b | 3543 | OPENSSL_free(s->cert->psk_identity_hint); |
0f113f3e | 3544 | if (identity_hint != NULL) { |
7644a9ae | 3545 | s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 3546 | if (s->cert->psk_identity_hint == NULL) |
0f113f3e MC |
3547 | return 0; |
3548 | } else | |
df6da24b | 3549 | s->cert->psk_identity_hint = NULL; |
0f113f3e MC |
3550 | return 1; |
3551 | } | |
ddac1974 NL |
3552 | |
3553 | const char *SSL_get_psk_identity_hint(const SSL *s) | |
0f113f3e MC |
3554 | { |
3555 | if (s == NULL || s->session == NULL) | |
3556 | return NULL; | |
3557 | return (s->session->psk_identity_hint); | |
3558 | } | |
ddac1974 NL |
3559 | |
3560 | const char *SSL_get_psk_identity(const SSL *s) | |
0f113f3e MC |
3561 | { |
3562 | if (s == NULL || s->session == NULL) | |
3563 | return NULL; | |
3564 | return (s->session->psk_identity); | |
3565 | } | |
7806f3dd | 3566 | |
52b8dad8 | 3567 | void SSL_set_psk_client_callback(SSL *s, |
0f113f3e MC |
3568 | unsigned int (*cb) (SSL *ssl, |
3569 | const char *hint, | |
3570 | char *identity, | |
3571 | unsigned int | |
3572 | max_identity_len, | |
3573 | unsigned char *psk, | |
3574 | unsigned int | |
3575 | max_psk_len)) | |
3576 | { | |
3577 | s->psk_client_callback = cb; | |
3578 | } | |
7806f3dd NL |
3579 | |
3580 | void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, | |
0f113f3e MC |
3581 | unsigned int (*cb) (SSL *ssl, |
3582 | const char *hint, | |
3583 | char *identity, | |
3584 | unsigned int | |
3585 | max_identity_len, | |
3586 | unsigned char *psk, | |
3587 | unsigned int | |
3588 | max_psk_len)) | |
3589 | { | |
3590 | ctx->psk_client_callback = cb; | |
3591 | } | |
7806f3dd | 3592 | |
52b8dad8 | 3593 | void SSL_set_psk_server_callback(SSL *s, |
0f113f3e MC |
3594 | unsigned int (*cb) (SSL *ssl, |
3595 | const char *identity, | |
3596 | unsigned char *psk, | |
3597 | unsigned int | |
3598 | max_psk_len)) | |
3599 | { | |
3600 | s->psk_server_callback = cb; | |
3601 | } | |
7806f3dd NL |
3602 | |
3603 | void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, | |
0f113f3e MC |
3604 | unsigned int (*cb) (SSL *ssl, |
3605 | const char *identity, | |
3606 | unsigned char *psk, | |
3607 | unsigned int | |
3608 | max_psk_len)) | |
3609 | { | |
3610 | ctx->psk_server_callback = cb; | |
3611 | } | |
3612 | #endif | |
3613 | ||
3614 | void SSL_CTX_set_msg_callback(SSL_CTX *ctx, | |
3615 | void (*cb) (int write_p, int version, | |
3616 | int content_type, const void *buf, | |
3617 | size_t len, SSL *ssl, void *arg)) | |
3618 | { | |
3619 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
3620 | } | |
3621 | ||
3622 | void SSL_set_msg_callback(SSL *ssl, | |
3623 | void (*cb) (int write_p, int version, | |
3624 | int content_type, const void *buf, | |
3625 | size_t len, SSL *ssl, void *arg)) | |
3626 | { | |
3627 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
3628 | } | |
a661b653 | 3629 | |
7c2d4fee | 3630 | void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, |
0f113f3e MC |
3631 | int (*cb) (SSL *ssl, |
3632 | int | |
3633 | is_forward_secure)) | |
3634 | { | |
3635 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
3636 | (void (*)(void))cb); | |
3637 | } | |
3638 | ||
7c2d4fee | 3639 | void SSL_set_not_resumable_session_callback(SSL *ssl, |
0f113f3e MC |
3640 | int (*cb) (SSL *ssl, |
3641 | int is_forward_secure)) | |
3642 | { | |
3643 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
3644 | (void (*)(void))cb); | |
3645 | } | |
3646 | ||
3647 | /* | |
3648 | * Allocates new EVP_MD_CTX and sets pointer to it into given pointer | |
8483a003 | 3649 | * variable, freeing EVP_MD_CTX previously stored in that variable, if any. |
0f113f3e MC |
3650 | * If EVP_MD pointer is passed, initializes ctx with this md Returns newly |
3651 | * allocated ctx; | |
8671b898 | 3652 | */ |
b948e2c5 | 3653 | |
0f113f3e | 3654 | EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md) |
b948e2c5 | 3655 | { |
0f113f3e | 3656 | ssl_clear_hash_ctx(hash); |
bfb0641f | 3657 | *hash = EVP_MD_CTX_new(); |
5f3d93e4 | 3658 | if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) { |
bfb0641f | 3659 | EVP_MD_CTX_free(*hash); |
5f3d93e4 MC |
3660 | *hash = NULL; |
3661 | return NULL; | |
3662 | } | |
0f113f3e | 3663 | return *hash; |
b948e2c5 | 3664 | } |
0f113f3e MC |
3665 | |
3666 | void ssl_clear_hash_ctx(EVP_MD_CTX **hash) | |
b948e2c5 DSH |
3667 | { |
3668 | ||
0f113f3e | 3669 | if (*hash) |
bfb0641f | 3670 | EVP_MD_CTX_free(*hash); |
0f113f3e | 3671 | *hash = NULL; |
b948e2c5 | 3672 | } |
a661b653 | 3673 | |
48fbcbac DSH |
3674 | /* Retrieve handshake hashes */ |
3675 | int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen) | |
3676 | { | |
6e59a892 | 3677 | EVP_MD_CTX *ctx = NULL; |
28ba2541 DSH |
3678 | EVP_MD_CTX *hdgst = s->s3->handshake_dgst; |
3679 | int ret = EVP_MD_CTX_size(hdgst); | |
28ba2541 DSH |
3680 | if (ret < 0 || ret > outlen) { |
3681 | ret = 0; | |
3682 | goto err; | |
48fbcbac | 3683 | } |
bfb0641f | 3684 | ctx = EVP_MD_CTX_new(); |
6e59a892 RL |
3685 | if (ctx == NULL) { |
3686 | ret = 0; | |
3687 | goto err; | |
3688 | } | |
3689 | if (!EVP_MD_CTX_copy_ex(ctx, hdgst) | |
3690 | || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) | |
28ba2541 | 3691 | ret = 0; |
48fbcbac | 3692 | err: |
bfb0641f | 3693 | EVP_MD_CTX_free(ctx); |
48fbcbac DSH |
3694 | return ret; |
3695 | } | |
3696 | ||
b577fd0b | 3697 | int SSL_session_reused(SSL *s) |
0f113f3e MC |
3698 | { |
3699 | return s->hit; | |
3700 | } | |
08557cf2 | 3701 | |
87adf1fa | 3702 | int SSL_is_server(SSL *s) |
0f113f3e MC |
3703 | { |
3704 | return s->server; | |
3705 | } | |
87adf1fa | 3706 | |
47153c72 RS |
3707 | #if OPENSSL_API_COMPAT < 0x10100000L |
3708 | void SSL_set_debug(SSL *s, int debug) | |
3709 | { | |
3710 | /* Old function was do-nothing anyway... */ | |
3711 | (void)s; | |
3712 | (void)debug; | |
3713 | } | |
3714 | #endif | |
3715 | ||
3716 | ||
b362ccab | 3717 | void SSL_set_security_level(SSL *s, int level) |
0f113f3e MC |
3718 | { |
3719 | s->cert->sec_level = level; | |
3720 | } | |
b362ccab DSH |
3721 | |
3722 | int SSL_get_security_level(const SSL *s) | |
0f113f3e MC |
3723 | { |
3724 | return s->cert->sec_level; | |
3725 | } | |
b362ccab | 3726 | |
0f113f3e | 3727 | void SSL_set_security_callback(SSL *s, |
e4646a89 | 3728 | int (*cb) (const SSL *s, const SSL_CTX *ctx, int op, |
0f113f3e MC |
3729 | int bits, int nid, void *other, |
3730 | void *ex)) | |
3731 | { | |
3732 | s->cert->sec_cb = cb; | |
3733 | } | |
b362ccab | 3734 | |
e4646a89 | 3735 | int (*SSL_get_security_callback(const SSL *s)) (const SSL *s, const SSL_CTX *ctx, int op, |
0f113f3e MC |
3736 | int bits, int nid, |
3737 | void *other, void *ex) { | |
3738 | return s->cert->sec_cb; | |
3739 | } | |
b362ccab DSH |
3740 | |
3741 | void SSL_set0_security_ex_data(SSL *s, void *ex) | |
0f113f3e MC |
3742 | { |
3743 | s->cert->sec_ex = ex; | |
3744 | } | |
b362ccab DSH |
3745 | |
3746 | void *SSL_get0_security_ex_data(const SSL *s) | |
0f113f3e MC |
3747 | { |
3748 | return s->cert->sec_ex; | |
3749 | } | |
b362ccab DSH |
3750 | |
3751 | void SSL_CTX_set_security_level(SSL_CTX *ctx, int level) | |
0f113f3e MC |
3752 | { |
3753 | ctx->cert->sec_level = level; | |
3754 | } | |
b362ccab DSH |
3755 | |
3756 | int SSL_CTX_get_security_level(const SSL_CTX *ctx) | |
0f113f3e MC |
3757 | { |
3758 | return ctx->cert->sec_level; | |
3759 | } | |
b362ccab | 3760 | |
0f113f3e | 3761 | void SSL_CTX_set_security_callback(SSL_CTX *ctx, |
e4646a89 | 3762 | int (*cb) (const SSL *s, const SSL_CTX *ctx, int op, |
0f113f3e MC |
3763 | int bits, int nid, void *other, |
3764 | void *ex)) | |
3765 | { | |
3766 | ctx->cert->sec_cb = cb; | |
3767 | } | |
b362ccab | 3768 | |
e4646a89 KR |
3769 | int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s, |
3770 | const SSL_CTX *ctx, | |
0f113f3e MC |
3771 | int op, int bits, |
3772 | int nid, | |
3773 | void *other, | |
3774 | void *ex) { | |
3775 | return ctx->cert->sec_cb; | |
3776 | } | |
b362ccab DSH |
3777 | |
3778 | void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex) | |
0f113f3e MC |
3779 | { |
3780 | ctx->cert->sec_ex = ex; | |
3781 | } | |
b362ccab DSH |
3782 | |
3783 | void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx) | |
0f113f3e MC |
3784 | { |
3785 | return ctx->cert->sec_ex; | |
3786 | } | |
b362ccab | 3787 | |
8106cb8b VD |
3788 | |
3789 | /* | |
3790 | * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that | |
3791 | * can return unsigned long, instead of the generic long return value from the | |
3792 | * control interface. | |
3793 | */ | |
3794 | unsigned long SSL_CTX_get_options(const SSL_CTX *ctx) | |
3795 | { | |
3796 | return ctx->options; | |
3797 | } | |
3798 | unsigned long SSL_get_options(const SSL* s) | |
3799 | { | |
3800 | return s->options; | |
3801 | } | |
3802 | unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op) | |
3803 | { | |
3804 | return ctx->options |= op; | |
3805 | } | |
3806 | unsigned long SSL_set_options(SSL *s, unsigned long op) | |
3807 | { | |
3808 | return s->options |= op; | |
3809 | } | |
3810 | unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op) | |
3811 | { | |
3812 | return ctx->options &= ~op; | |
3813 | } | |
3814 | unsigned long SSL_clear_options(SSL *s, unsigned long op) | |
3815 | { | |
3816 | return s->options &= ~op; | |
3817 | } | |
3818 | ||
696178ed DSH |
3819 | STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s) |
3820 | { | |
3821 | return s->verified_chain; | |
3822 | } | |
3823 | ||
0f113f3e | 3824 | IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); |
ed29e82a RP |
3825 | |
3826 | #ifndef OPENSSL_NO_CT | |
3827 | ||
3828 | /* | |
3829 | * Moves SCTs from the |src| stack to the |dst| stack. | |
3830 | * The source of each SCT will be set to |origin|. | |
3831 | * If |dst| points to a NULL pointer, a new stack will be created and owned by | |
3832 | * the caller. | |
3833 | * Returns the number of SCTs moved, or a negative integer if an error occurs. | |
3834 | */ | |
3835 | static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src, sct_source_t origin) | |
3836 | { | |
3837 | int scts_moved = 0; | |
3838 | SCT *sct = NULL; | |
3839 | ||
3840 | if (*dst == NULL) { | |
3841 | *dst = sk_SCT_new_null(); | |
3842 | if (*dst == NULL) { | |
3843 | SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE); | |
3844 | goto err; | |
3845 | } | |
3846 | } | |
3847 | ||
3848 | while ((sct = sk_SCT_pop(src)) != NULL) { | |
3849 | if (SCT_set_source(sct, origin) != 1) | |
3850 | goto err; | |
3851 | ||
3852 | if (sk_SCT_push(*dst, sct) <= 0) | |
3853 | goto err; | |
3854 | scts_moved += 1; | |
3855 | } | |
3856 | ||
3857 | return scts_moved; | |
3858 | err: | |
3859 | if (sct != NULL) | |
3860 | sk_SCT_push(src, sct); /* Put the SCT back */ | |
cc7113e8 | 3861 | return -1; |
ed29e82a RP |
3862 | } |
3863 | ||
3864 | /* | |
3865 | * Look for data collected during ServerHello and parse if found. | |
3866 | * Return 1 on success, 0 on failure. | |
3867 | */ | |
3868 | static int ct_extract_tls_extension_scts(SSL *s) | |
3869 | { | |
3870 | int scts_extracted = 0; | |
3871 | ||
3872 | if (s->tlsext_scts != NULL) { | |
3873 | const unsigned char *p = s->tlsext_scts; | |
3874 | STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->tlsext_scts_len); | |
3875 | ||
3876 | scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION); | |
3877 | ||
3878 | SCT_LIST_free(scts); | |
3879 | } | |
3880 | ||
3881 | return scts_extracted; | |
3882 | } | |
3883 | ||
3884 | /* | |
3885 | * Checks for an OCSP response and then attempts to extract any SCTs found if it | |
3886 | * contains an SCT X509 extension. They will be stored in |s->scts|. | |
3887 | * Returns: | |
3888 | * - The number of SCTs extracted, assuming an OCSP response exists. | |
3889 | * - 0 if no OCSP response exists or it contains no SCTs. | |
3890 | * - A negative integer if an error occurs. | |
3891 | */ | |
3892 | static int ct_extract_ocsp_response_scts(SSL *s) | |
3893 | { | |
3e41ac35 | 3894 | #ifndef OPENSSL_NO_OCSP |
ed29e82a RP |
3895 | int scts_extracted = 0; |
3896 | const unsigned char *p; | |
3897 | OCSP_BASICRESP *br = NULL; | |
3898 | OCSP_RESPONSE *rsp = NULL; | |
3899 | STACK_OF(SCT) *scts = NULL; | |
3900 | int i; | |
3901 | ||
3902 | if (s->tlsext_ocsp_resp == NULL || s->tlsext_ocsp_resplen == 0) | |
3903 | goto err; | |
3904 | ||
3905 | p = s->tlsext_ocsp_resp; | |
3906 | rsp = d2i_OCSP_RESPONSE(NULL, &p, s->tlsext_ocsp_resplen); | |
3907 | if (rsp == NULL) | |
3908 | goto err; | |
3909 | ||
3910 | br = OCSP_response_get1_basic(rsp); | |
3911 | if (br == NULL) | |
3912 | goto err; | |
3913 | ||
3914 | for (i = 0; i < OCSP_resp_count(br); ++i) { | |
3915 | OCSP_SINGLERESP *single = OCSP_resp_get0(br, i); | |
3916 | ||
3917 | if (single == NULL) | |
3918 | continue; | |
3919 | ||
3920 | scts = OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL); | |
3921 | scts_extracted = ct_move_scts(&s->scts, scts, | |
3922 | SCT_SOURCE_OCSP_STAPLED_RESPONSE); | |
3923 | if (scts_extracted < 0) | |
3924 | goto err; | |
3925 | } | |
3926 | err: | |
3927 | SCT_LIST_free(scts); | |
3928 | OCSP_BASICRESP_free(br); | |
3929 | OCSP_RESPONSE_free(rsp); | |
3930 | return scts_extracted; | |
3e41ac35 MC |
3931 | #else |
3932 | /* Behave as if no OCSP response exists */ | |
3933 | return 0; | |
3934 | #endif | |
ed29e82a RP |
3935 | } |
3936 | ||
3937 | /* | |
3938 | * Attempts to extract SCTs from the peer certificate. | |
3939 | * Return the number of SCTs extracted, or a negative integer if an error | |
3940 | * occurs. | |
3941 | */ | |
3942 | static int ct_extract_x509v3_extension_scts(SSL *s) | |
3943 | { | |
3944 | int scts_extracted = 0; | |
3f3c7d26 | 3945 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
ed29e82a RP |
3946 | |
3947 | if (cert != NULL) { | |
3948 | STACK_OF(SCT) *scts = | |
3949 | X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL); | |
3950 | ||
3951 | scts_extracted = | |
3952 | ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION); | |
3953 | ||
3954 | SCT_LIST_free(scts); | |
3955 | } | |
3956 | ||
3957 | return scts_extracted; | |
3958 | } | |
3959 | ||
3960 | /* | |
3961 | * Attempts to find all received SCTs by checking TLS extensions, the OCSP | |
3962 | * response (if it exists) and X509v3 extensions in the certificate. | |
3963 | * Returns NULL if an error occurs. | |
3964 | */ | |
3965 | const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s) | |
3966 | { | |
3967 | if (!s->scts_parsed) { | |
3968 | if (ct_extract_tls_extension_scts(s) < 0 || | |
3969 | ct_extract_ocsp_response_scts(s) < 0 || | |
3970 | ct_extract_x509v3_extension_scts(s) < 0) | |
3971 | goto err; | |
3972 | ||
3973 | s->scts_parsed = 1; | |
3974 | } | |
3975 | return s->scts; | |
3976 | err: | |
3977 | return NULL; | |
3978 | } | |
3979 | ||
43341433 VD |
3980 | static int ct_permissive(const CT_POLICY_EVAL_CTX *ctx, |
3981 | const STACK_OF(SCT) *scts, void *unused_arg) | |
ed29e82a | 3982 | { |
43341433 VD |
3983 | return 1; |
3984 | } | |
3985 | ||
3986 | static int ct_strict(const CT_POLICY_EVAL_CTX *ctx, | |
3987 | const STACK_OF(SCT) *scts, void *unused_arg) | |
3988 | { | |
3989 | int count = scts != NULL ? sk_SCT_num(scts) : 0; | |
3990 | int i; | |
ed29e82a | 3991 | |
43341433 VD |
3992 | for (i = 0; i < count; ++i) { |
3993 | SCT *sct = sk_SCT_value(scts, i); | |
3994 | int status = SCT_get_validation_status(sct); | |
3995 | ||
3996 | if (status == SCT_VALIDATION_STATUS_VALID) | |
3997 | return 1; | |
3998 | } | |
3999 | SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS); | |
4000 | return 0; | |
4001 | } | |
4002 | ||
4003 | int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback, | |
4004 | void *arg) | |
4005 | { | |
ed29e82a RP |
4006 | /* |
4007 | * Since code exists that uses the custom extension handler for CT, look | |
4008 | * for this and throw an error if they have already registered to use CT. | |
4009 | */ | |
4010 | if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx, | |
4011 | TLSEXT_TYPE_signed_certificate_timestamp)) { | |
4012 | SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK, | |
4013 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4014 | return 0; |
ed29e82a RP |
4015 | } |
4016 | ||
ed29e82a RP |
4017 | if (callback != NULL) { |
4018 | /* If we are validating CT, then we MUST accept SCTs served via OCSP */ | |
4019 | if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp)) | |
43341433 | 4020 | return 0; |
ed29e82a RP |
4021 | } |
4022 | ||
43341433 VD |
4023 | s->ct_validation_callback = callback; |
4024 | s->ct_validation_callback_arg = arg; | |
4025 | ||
4026 | return 1; | |
ed29e82a RP |
4027 | } |
4028 | ||
43341433 VD |
4029 | int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx, |
4030 | ssl_ct_validation_cb callback, | |
ed29e82a RP |
4031 | void *arg) |
4032 | { | |
ed29e82a RP |
4033 | /* |
4034 | * Since code exists that uses the custom extension handler for CT, look for | |
4035 | * this and throw an error if they have already registered to use CT. | |
4036 | */ | |
4037 | if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx, | |
4038 | TLSEXT_TYPE_signed_certificate_timestamp)) { | |
4039 | SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK, | |
4040 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4041 | return 0; |
ed29e82a RP |
4042 | } |
4043 | ||
4044 | ctx->ct_validation_callback = callback; | |
4045 | ctx->ct_validation_callback_arg = arg; | |
43341433 | 4046 | return 1; |
ed29e82a RP |
4047 | } |
4048 | ||
43341433 | 4049 | int SSL_ct_is_enabled(const SSL *s) |
ed29e82a | 4050 | { |
43341433 | 4051 | return s->ct_validation_callback != NULL; |
ed29e82a RP |
4052 | } |
4053 | ||
43341433 | 4054 | int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx) |
ed29e82a | 4055 | { |
43341433 | 4056 | return ctx->ct_validation_callback != NULL; |
ed29e82a RP |
4057 | } |
4058 | ||
4d482ee2 | 4059 | int ssl_validate_ct(SSL *s) |
ed29e82a RP |
4060 | { |
4061 | int ret = 0; | |
3f3c7d26 | 4062 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
43341433 | 4063 | X509 *issuer; |
b9aec69a | 4064 | SSL_DANE *dane = &s->dane; |
ed29e82a RP |
4065 | CT_POLICY_EVAL_CTX *ctx = NULL; |
4066 | const STACK_OF(SCT) *scts; | |
4067 | ||
43341433 VD |
4068 | /* |
4069 | * If no callback is set, the peer is anonymous, or its chain is invalid, | |
4070 | * skip SCT validation - just return success. Applications that continue | |
4071 | * handshakes without certificates, with unverified chains, or pinned leaf | |
4072 | * certificates are outside the scope of the WebPKI and CT. | |
4073 | * | |
4074 | * The above exclusions notwithstanding the vast majority of peers will | |
4075 | * have rather ordinary certificate chains validated by typical | |
4076 | * applications that perform certificate verification and therefore will | |
4077 | * process SCTs when enabled. | |
4078 | */ | |
4079 | if (s->ct_validation_callback == NULL || cert == NULL || | |
4080 | s->verify_result != X509_V_OK || | |
4081 | s->verified_chain == NULL || | |
4082 | sk_X509_num(s->verified_chain) <= 1) | |
ed29e82a RP |
4083 | return 1; |
4084 | ||
43341433 VD |
4085 | /* |
4086 | * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3) | |
4087 | * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2 | |
4088 | */ | |
4089 | if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) { | |
4090 | switch (dane->mtlsa->usage) { | |
4091 | case DANETLS_USAGE_DANE_TA: | |
4092 | case DANETLS_USAGE_DANE_EE: | |
4093 | return 1; | |
4094 | } | |
ed29e82a RP |
4095 | } |
4096 | ||
ed29e82a RP |
4097 | ctx = CT_POLICY_EVAL_CTX_new(); |
4098 | if (ctx == NULL) { | |
4099 | SSLerr(SSL_F_SSL_VALIDATE_CT, ERR_R_MALLOC_FAILURE); | |
4100 | goto end; | |
4101 | } | |
4102 | ||
43341433 | 4103 | issuer = sk_X509_value(s->verified_chain, 1); |
ed29e82a RP |
4104 | CT_POLICY_EVAL_CTX_set0_cert(ctx, cert); |
4105 | CT_POLICY_EVAL_CTX_set0_issuer(ctx, issuer); | |
4106 | CT_POLICY_EVAL_CTX_set0_log_store(ctx, s->ctx->ctlog_store); | |
4107 | ||
4108 | scts = SSL_get0_peer_scts(s); | |
4109 | ||
43341433 VD |
4110 | /* |
4111 | * This function returns success (> 0) only when all the SCTs are valid, 0 | |
4112 | * when some are invalid, and < 0 on various internal errors (out of | |
4113 | * memory, etc.). Having some, or even all, invalid SCTs is not sufficient | |
4114 | * reason to abort the handshake, that decision is up to the callback. | |
4115 | * Therefore, we error out only in the unexpected case that the return | |
4116 | * value is negative. | |
4117 | * | |
4118 | * XXX: One might well argue that the return value of this function is an | |
4119 | * unforunate design choice. Its job is only to determine the validation | |
4120 | * status of each of the provided SCTs. So long as it correctly separates | |
4121 | * the wheat from the chaff it should return success. Failure in this case | |
4122 | * ought to correspond to an inability to carry out its duties. | |
4123 | */ | |
4124 | if (SCT_LIST_validate(scts, ctx) < 0) { | |
ed29e82a RP |
4125 | SSLerr(SSL_F_SSL_VALIDATE_CT, SSL_R_SCT_VERIFICATION_FAILED); |
4126 | goto end; | |
4127 | } | |
4128 | ||
4129 | ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg); | |
4130 | if (ret < 0) | |
4131 | ret = 0; /* This function returns 0 on failure */ | |
4132 | ||
4133 | end: | |
4134 | CT_POLICY_EVAL_CTX_free(ctx); | |
f75b34c8 VD |
4135 | /* |
4136 | * With SSL_VERIFY_NONE the session may be cached and re-used despite a | |
4137 | * failure return code here. Also the application may wish the complete | |
4138 | * the handshake, and then disconnect cleanly at a higher layer, after | |
4139 | * checking the verification status of the completed connection. | |
4140 | * | |
4141 | * We therefore force a certificate verification failure which will be | |
4142 | * visible via SSL_get_verify_result() and cached as part of any resumed | |
4143 | * session. | |
4144 | * | |
4145 | * Note: the permissive callback is for information gathering only, always | |
4146 | * returns success, and does not affect verification status. Only the | |
4147 | * strict callback or a custom application-specified callback can trigger | |
4148 | * connection failure or record a verification error. | |
4149 | */ | |
4150 | if (ret <= 0) | |
4151 | s->verify_result = X509_V_ERR_NO_VALID_SCTS; | |
ed29e82a RP |
4152 | return ret; |
4153 | } | |
4154 | ||
43341433 VD |
4155 | int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode) |
4156 | { | |
4157 | switch (validation_mode) { | |
4158 | default: | |
4159 | SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
4160 | return 0; | |
4161 | case SSL_CT_VALIDATION_PERMISSIVE: | |
4162 | return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL); | |
4163 | case SSL_CT_VALIDATION_STRICT: | |
4164 | return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL); | |
4165 | } | |
4166 | } | |
4167 | ||
4168 | int SSL_enable_ct(SSL *s, int validation_mode) | |
4169 | { | |
4170 | switch (validation_mode) { | |
4171 | default: | |
4172 | SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
4173 | return 0; | |
4174 | case SSL_CT_VALIDATION_PERMISSIVE: | |
4175 | return SSL_set_ct_validation_callback(s, ct_permissive, NULL); | |
4176 | case SSL_CT_VALIDATION_STRICT: | |
4177 | return SSL_set_ct_validation_callback(s, ct_strict, NULL); | |
4178 | } | |
4179 | } | |
4180 | ||
ed29e82a RP |
4181 | int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx) |
4182 | { | |
328f36c5 | 4183 | return CTLOG_STORE_load_default_file(ctx->ctlog_store); |
ed29e82a RP |
4184 | } |
4185 | ||
4186 | int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path) | |
4187 | { | |
4188 | return CTLOG_STORE_load_file(ctx->ctlog_store, path); | |
4189 | } | |
4190 | ||
8359b57f RP |
4191 | void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE *logs) |
4192 | { | |
4193 | CTLOG_STORE_free(ctx->ctlog_store); | |
4194 | ctx->ctlog_store = logs; | |
4195 | } | |
4196 | ||
4197 | const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx) | |
4198 | { | |
4199 | return ctx->ctlog_store; | |
4200 | } | |
4201 | ||
ed29e82a | 4202 | #endif |