]>
Commit | Line | Data |
---|---|---|
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 | ||
5ae4ceb9 VD |
111 | if (dctx->mdevp != NULL) |
112 | return 1; | |
113 | ||
919ba009 VD |
114 | mdevp = OPENSSL_zalloc(n * sizeof(*mdevp)); |
115 | mdord = OPENSSL_zalloc(n * sizeof(*mdord)); | |
116 | ||
117 | if (mdord == NULL || mdevp == NULL) { | |
b3bd3d5a | 118 | OPENSSL_free(mdord); |
919ba009 VD |
119 | OPENSSL_free(mdevp); |
120 | SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE); | |
121 | return 0; | |
122 | } | |
123 | ||
124 | /* Install default entries */ | |
125 | for (i = 0; i < OSSL_NELEM(dane_mds); ++i) { | |
126 | const EVP_MD *md; | |
127 | ||
128 | if (dane_mds[i].nid == NID_undef || | |
129 | (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL) | |
130 | continue; | |
131 | mdevp[dane_mds[i].mtype] = md; | |
132 | mdord[dane_mds[i].mtype] = dane_mds[i].ord; | |
133 | } | |
134 | ||
135 | dctx->mdevp = mdevp; | |
136 | dctx->mdord = mdord; | |
137 | dctx->mdmax = mdmax; | |
138 | ||
139 | return 1; | |
140 | } | |
141 | ||
142 | static void dane_ctx_final(struct dane_ctx_st *dctx) | |
143 | { | |
144 | OPENSSL_free(dctx->mdevp); | |
145 | dctx->mdevp = NULL; | |
146 | ||
147 | OPENSSL_free(dctx->mdord); | |
148 | dctx->mdord = NULL; | |
149 | dctx->mdmax = 0; | |
150 | } | |
151 | ||
152 | static void tlsa_free(danetls_record *t) | |
153 | { | |
154 | if (t == NULL) | |
155 | return; | |
156 | OPENSSL_free(t->data); | |
157 | EVP_PKEY_free(t->spki); | |
158 | OPENSSL_free(t); | |
159 | } | |
160 | ||
b9aec69a | 161 | static void dane_final(SSL_DANE *dane) |
919ba009 VD |
162 | { |
163 | sk_danetls_record_pop_free(dane->trecs, tlsa_free); | |
164 | dane->trecs = NULL; | |
165 | ||
166 | sk_X509_pop_free(dane->certs, X509_free); | |
167 | dane->certs = NULL; | |
168 | ||
169 | X509_free(dane->mcert); | |
170 | dane->mcert = NULL; | |
171 | dane->mtlsa = NULL; | |
172 | dane->mdpth = -1; | |
173 | dane->pdpth = -1; | |
174 | } | |
175 | ||
176 | /* | |
177 | * dane_copy - Copy dane configuration, sans verification state. | |
178 | */ | |
179 | static int ssl_dane_dup(SSL *to, SSL *from) | |
180 | { | |
181 | int num; | |
182 | int i; | |
183 | ||
184 | if (!DANETLS_ENABLED(&from->dane)) | |
185 | return 1; | |
186 | ||
187 | dane_final(&to->dane); | |
5ae4ceb9 | 188 | to->dane.flags = from->dane.flags; |
9f6b22b8 VD |
189 | to->dane.dctx = &to->ctx->dane; |
190 | to->dane.trecs = sk_danetls_record_new_null(); | |
191 | ||
192 | if (to->dane.trecs == NULL) { | |
193 | SSLerr(SSL_F_SSL_DANE_DUP, ERR_R_MALLOC_FAILURE); | |
194 | return 0; | |
195 | } | |
919ba009 VD |
196 | |
197 | num = sk_danetls_record_num(from->dane.trecs); | |
198 | for (i = 0; i < num; ++i) { | |
199 | danetls_record *t = sk_danetls_record_value(from->dane.trecs, i); | |
9f6b22b8 | 200 | |
919ba009 VD |
201 | if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype, |
202 | t->data, t->dlen) <= 0) | |
203 | return 0; | |
204 | } | |
205 | return 1; | |
206 | } | |
207 | ||
208 | static int dane_mtype_set( | |
209 | struct dane_ctx_st *dctx, | |
210 | const EVP_MD *md, | |
211 | uint8_t mtype, | |
212 | uint8_t ord) | |
213 | { | |
214 | int i; | |
215 | ||
216 | if (mtype == DANETLS_MATCHING_FULL && md != NULL) { | |
217 | SSLerr(SSL_F_DANE_MTYPE_SET, | |
218 | SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL); | |
219 | return 0; | |
220 | } | |
221 | ||
222 | if (mtype > dctx->mdmax) { | |
223 | const EVP_MD **mdevp; | |
224 | uint8_t *mdord; | |
225 | int n = ((int) mtype) + 1; | |
226 | ||
227 | mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp)); | |
228 | if (mdevp == NULL) { | |
229 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
230 | return -1; | |
231 | } | |
232 | dctx->mdevp = mdevp; | |
233 | ||
234 | mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord)); | |
235 | if (mdord == NULL) { | |
236 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
237 | return -1; | |
238 | } | |
239 | dctx->mdord = mdord; | |
240 | ||
241 | /* Zero-fill any gaps */ | |
242 | for (i = dctx->mdmax+1; i < mtype; ++i) { | |
243 | mdevp[i] = NULL; | |
244 | mdord[i] = 0; | |
245 | } | |
246 | ||
247 | dctx->mdmax = mtype; | |
248 | } | |
249 | ||
250 | dctx->mdevp[mtype] = md; | |
251 | /* Coerce ordinal of disabled matching types to 0 */ | |
252 | dctx->mdord[mtype] = (md == NULL) ? 0 : ord; | |
253 | ||
254 | return 1; | |
255 | } | |
256 | ||
b9aec69a | 257 | static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype) |
919ba009 VD |
258 | { |
259 | if (mtype > dane->dctx->mdmax) | |
260 | return NULL; | |
261 | return dane->dctx->mdevp[mtype]; | |
262 | } | |
263 | ||
264 | static int dane_tlsa_add( | |
b9aec69a | 265 | SSL_DANE *dane, |
919ba009 VD |
266 | uint8_t usage, |
267 | uint8_t selector, | |
268 | uint8_t mtype, | |
269 | unsigned char *data, | |
270 | size_t dlen) | |
271 | { | |
272 | danetls_record *t; | |
273 | const EVP_MD *md = NULL; | |
274 | int ilen = (int)dlen; | |
275 | int i; | |
9f6b22b8 | 276 | int num; |
919ba009 VD |
277 | |
278 | if (dane->trecs == NULL) { | |
279 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED); | |
280 | return -1; | |
281 | } | |
282 | ||
283 | if (ilen < 0 || dlen != (size_t)ilen) { | |
284 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH); | |
285 | return 0; | |
286 | } | |
287 | ||
288 | if (usage > DANETLS_USAGE_LAST) { | |
289 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE); | |
290 | return 0; | |
291 | } | |
292 | ||
293 | if (selector > DANETLS_SELECTOR_LAST) { | |
294 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR); | |
295 | return 0; | |
296 | } | |
297 | ||
298 | if (mtype != DANETLS_MATCHING_FULL) { | |
299 | md = tlsa_md_get(dane, mtype); | |
300 | if (md == NULL) { | |
301 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE); | |
302 | return 0; | |
303 | } | |
304 | } | |
305 | ||
306 | if (md != NULL && dlen != (size_t)EVP_MD_size(md)) { | |
307 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH); | |
308 | return 0; | |
309 | } | |
310 | if (!data) { | |
311 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA); | |
312 | return 0; | |
313 | } | |
314 | ||
315 | if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) { | |
316 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
317 | return -1; | |
318 | } | |
319 | ||
320 | t->usage = usage; | |
321 | t->selector = selector; | |
322 | t->mtype = mtype; | |
323 | t->data = OPENSSL_malloc(ilen); | |
324 | if (t->data == NULL) { | |
325 | tlsa_free(t); | |
326 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
327 | return -1; | |
328 | } | |
329 | memcpy(t->data, data, ilen); | |
330 | t->dlen = ilen; | |
331 | ||
332 | /* Validate and cache full certificate or public key */ | |
333 | if (mtype == DANETLS_MATCHING_FULL) { | |
334 | const unsigned char *p = data; | |
335 | X509 *cert = NULL; | |
336 | EVP_PKEY *pkey = NULL; | |
337 | ||
338 | switch (selector) { | |
339 | case DANETLS_SELECTOR_CERT: | |
340 | if (!d2i_X509(&cert, &p, dlen) || p < data || | |
341 | dlen != (size_t)(p - data)) { | |
342 | tlsa_free(t); | |
343 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
344 | return 0; | |
345 | } | |
346 | if (X509_get0_pubkey(cert) == NULL) { | |
347 | tlsa_free(t); | |
348 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
349 | return 0; | |
350 | } | |
351 | ||
352 | if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) { | |
353 | X509_free(cert); | |
354 | break; | |
355 | } | |
356 | ||
357 | /* | |
358 | * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA | |
359 | * records that contain full certificates of trust-anchors that are | |
360 | * not present in the wire chain. For usage PKIX-TA(0), we augment | |
361 | * the chain with untrusted Full(0) certificates from DNS, in case | |
362 | * they are missing from the chain. | |
363 | */ | |
364 | if ((dane->certs == NULL && | |
365 | (dane->certs = sk_X509_new_null()) == NULL) || | |
366 | !sk_X509_push(dane->certs, cert)) { | |
367 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
368 | X509_free(cert); | |
369 | tlsa_free(t); | |
370 | return -1; | |
371 | } | |
372 | break; | |
373 | ||
374 | case DANETLS_SELECTOR_SPKI: | |
375 | if (!d2i_PUBKEY(&pkey, &p, dlen) || p < data || | |
376 | dlen != (size_t)(p - data)) { | |
377 | tlsa_free(t); | |
378 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY); | |
379 | return 0; | |
380 | } | |
381 | ||
382 | /* | |
383 | * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA | |
384 | * records that contain full bare keys of trust-anchors that are | |
385 | * not present in the wire chain. | |
386 | */ | |
387 | if (usage == DANETLS_USAGE_DANE_TA) | |
388 | t->spki = pkey; | |
389 | else | |
390 | EVP_PKEY_free(pkey); | |
391 | break; | |
392 | } | |
393 | } | |
394 | ||
395 | /*- | |
396 | * Find the right insertion point for the new record. | |
397 | * | |
398 | * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that | |
399 | * they can be processed first, as they require no chain building, and no | |
400 | * expiration or hostname checks. Because DANE-EE(3) is numerically | |
401 | * largest, this is accomplished via descending sort by "usage". | |
402 | * | |
403 | * We also sort in descending order by matching ordinal to simplify | |
404 | * the implementation of digest agility in the verification code. | |
405 | * | |
406 | * The choice of order for the selector is not significant, so we | |
407 | * use the same descending order for consistency. | |
408 | */ | |
9f6b22b8 VD |
409 | num = sk_danetls_record_num(dane->trecs); |
410 | for (i = 0; i < num; ++i) { | |
919ba009 | 411 | danetls_record *rec = sk_danetls_record_value(dane->trecs, i); |
9f6b22b8 | 412 | |
919ba009 VD |
413 | if (rec->usage > usage) |
414 | continue; | |
415 | if (rec->usage < usage) | |
416 | break; | |
417 | if (rec->selector > selector) | |
418 | continue; | |
419 | if (rec->selector < selector) | |
420 | break; | |
421 | if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype]) | |
422 | continue; | |
423 | break; | |
424 | } | |
425 | ||
426 | if (!sk_danetls_record_insert(dane->trecs, t, i)) { | |
427 | tlsa_free(t); | |
428 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
429 | return -1; | |
430 | } | |
431 | dane->umask |= DANETLS_USAGE_BIT(usage); | |
432 | ||
433 | return 1; | |
434 | } | |
435 | ||
d31fb0b5 RS |
436 | static void clear_ciphers(SSL *s) |
437 | { | |
438 | /* clear the current cipher */ | |
439 | ssl_clear_cipher_ctx(s); | |
440 | ssl_clear_hash_ctx(&s->read_hash); | |
441 | ssl_clear_hash_ctx(&s->write_hash); | |
442 | } | |
443 | ||
4f43d0e7 | 444 | int SSL_clear(SSL *s) |
0f113f3e | 445 | { |
0f113f3e MC |
446 | if (s->method == NULL) { |
447 | SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED); | |
448 | return (0); | |
449 | } | |
d02b48c6 | 450 | |
0f113f3e MC |
451 | if (ssl_clear_bad_session(s)) { |
452 | SSL_SESSION_free(s->session); | |
453 | s->session = NULL; | |
454 | } | |
d62bfb39 | 455 | |
0f113f3e MC |
456 | s->error = 0; |
457 | s->hit = 0; | |
458 | s->shutdown = 0; | |
d02b48c6 | 459 | |
0f113f3e MC |
460 | if (s->renegotiate) { |
461 | SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR); | |
462 | return 0; | |
463 | } | |
d02b48c6 | 464 | |
fe3a3291 | 465 | ossl_statem_clear(s); |
413c4f45 | 466 | |
0f113f3e MC |
467 | s->version = s->method->version; |
468 | s->client_version = s->version; | |
469 | s->rwstate = SSL_NOTHING; | |
d02b48c6 | 470 | |
25aaa98a RS |
471 | BUF_MEM_free(s->init_buf); |
472 | s->init_buf = NULL; | |
d31fb0b5 | 473 | clear_ciphers(s); |
0f113f3e | 474 | s->first_packet = 0; |
d02b48c6 | 475 | |
919ba009 VD |
476 | /* Reset DANE verification result state */ |
477 | s->dane.mdpth = -1; | |
478 | s->dane.pdpth = -1; | |
479 | X509_free(s->dane.mcert); | |
480 | s->dane.mcert = NULL; | |
481 | s->dane.mtlsa = NULL; | |
482 | ||
483 | /* Clear the verification result peername */ | |
484 | X509_VERIFY_PARAM_move_peername(s->param, NULL); | |
485 | ||
0f113f3e MC |
486 | /* |
487 | * Check to see if we were changed into a different method, if so, revert | |
488 | * back if we are not doing session-id reuse. | |
489 | */ | |
024f543c | 490 | if (!ossl_statem_get_in_handshake(s) && (s->session == NULL) |
0f113f3e MC |
491 | && (s->method != s->ctx->method)) { |
492 | s->method->ssl_free(s); | |
493 | s->method = s->ctx->method; | |
494 | if (!s->method->ssl_new(s)) | |
495 | return (0); | |
496 | } else | |
0f113f3e | 497 | s->method->ssl_clear(s); |
33d23b87 | 498 | |
af9752e5 | 499 | RECORD_LAYER_clear(&s->rlayer); |
33d23b87 | 500 | |
0f113f3e MC |
501 | return (1); |
502 | } | |
d02b48c6 | 503 | |
4f43d0e7 | 504 | /** Used to change an SSL_CTXs default SSL method type */ |
0f113f3e MC |
505 | int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) |
506 | { | |
507 | STACK_OF(SSL_CIPHER) *sk; | |
508 | ||
509 | ctx->method = meth; | |
510 | ||
511 | sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list), | |
512 | &(ctx->cipher_list_by_id), | |
513 | SSL_DEFAULT_CIPHER_LIST, ctx->cert); | |
514 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { | |
515 | SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, | |
516 | SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); | |
517 | return (0); | |
518 | } | |
519 | return (1); | |
520 | } | |
d02b48c6 | 521 | |
4f43d0e7 | 522 | SSL *SSL_new(SSL_CTX *ctx) |
0f113f3e MC |
523 | { |
524 | SSL *s; | |
525 | ||
526 | if (ctx == NULL) { | |
527 | SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX); | |
528 | return (NULL); | |
529 | } | |
530 | if (ctx->method == NULL) { | |
531 | SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); | |
532 | return (NULL); | |
533 | } | |
534 | ||
b51bce94 | 535 | s = OPENSSL_zalloc(sizeof(*s)); |
0f113f3e MC |
536 | if (s == NULL) |
537 | goto err; | |
0f113f3e | 538 | |
16203f7b AG |
539 | s->lock = CRYPTO_THREAD_lock_new(); |
540 | if (s->lock == NULL) { | |
541 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); | |
542 | OPENSSL_free(s); | |
543 | return NULL; | |
544 | } | |
545 | ||
c036e210 | 546 | RECORD_LAYER_init(&s->rlayer, s); |
28d59af8 | 547 | |
0f113f3e | 548 | s->options = ctx->options; |
5ae4ceb9 | 549 | s->dane.flags = ctx->dane.flags; |
7946ab33 KR |
550 | s->min_proto_version = ctx->min_proto_version; |
551 | s->max_proto_version = ctx->max_proto_version; | |
0f113f3e MC |
552 | s->mode = ctx->mode; |
553 | s->max_cert_list = ctx->max_cert_list; | |
0e04674e | 554 | s->references = 1; |
0f113f3e | 555 | |
2c382349 KR |
556 | /* |
557 | * Earlier library versions used to copy the pointer to the CERT, not | |
558 | * its contents; only when setting new parameters for the per-SSL | |
559 | * copy, ssl_cert_new would be called (and the direct reference to | |
560 | * the per-SSL_CTX settings would be lost, but those still were | |
561 | * indirectly accessed for various purposes, and for that reason they | |
562 | * used to be known as s->ctx->default_cert). Now we don't look at the | |
563 | * SSL_CTX's CERT after having duplicated it once. | |
564 | */ | |
565 | s->cert = ssl_cert_dup(ctx->cert); | |
566 | if (s->cert == NULL) | |
567 | goto err; | |
0f113f3e | 568 | |
52e1d7b1 | 569 | RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead); |
0f113f3e MC |
570 | s->msg_callback = ctx->msg_callback; |
571 | s->msg_callback_arg = ctx->msg_callback_arg; | |
572 | s->verify_mode = ctx->verify_mode; | |
573 | s->not_resumable_session_cb = ctx->not_resumable_session_cb; | |
0f113f3e MC |
574 | s->sid_ctx_length = ctx->sid_ctx_length; |
575 | OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); | |
576 | memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); | |
577 | s->verify_callback = ctx->default_verify_callback; | |
578 | s->generate_session_id = ctx->generate_session_id; | |
579 | ||
580 | s->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 581 | if (s->param == NULL) |
0f113f3e MC |
582 | goto err; |
583 | X509_VERIFY_PARAM_inherit(s->param, ctx->param); | |
0f113f3e MC |
584 | s->quiet_shutdown = ctx->quiet_shutdown; |
585 | s->max_send_fragment = ctx->max_send_fragment; | |
d102d9df MC |
586 | s->split_send_fragment = ctx->split_send_fragment; |
587 | s->max_pipelines = ctx->max_pipelines; | |
94777c9c MC |
588 | if (s->max_pipelines > 1) |
589 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
dad78fb1 MC |
590 | if (ctx->default_read_buf_len > 0) |
591 | SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len); | |
bf21446a | 592 | |
16203f7b | 593 | SSL_CTX_up_ref(ctx); |
0f113f3e | 594 | s->ctx = ctx; |
0f113f3e MC |
595 | s->tlsext_debug_cb = 0; |
596 | s->tlsext_debug_arg = NULL; | |
597 | s->tlsext_ticket_expected = 0; | |
ba261f71 | 598 | s->tlsext_status_type = ctx->tlsext_status_type; |
0f113f3e MC |
599 | s->tlsext_status_expected = 0; |
600 | s->tlsext_ocsp_ids = NULL; | |
601 | s->tlsext_ocsp_exts = NULL; | |
602 | s->tlsext_ocsp_resp = NULL; | |
603 | s->tlsext_ocsp_resplen = -1; | |
16203f7b | 604 | SSL_CTX_up_ref(ctx); |
0f113f3e MC |
605 | s->initial_ctx = ctx; |
606 | # ifndef OPENSSL_NO_EC | |
607 | if (ctx->tlsext_ecpointformatlist) { | |
608 | s->tlsext_ecpointformatlist = | |
7644a9ae RS |
609 | OPENSSL_memdup(ctx->tlsext_ecpointformatlist, |
610 | ctx->tlsext_ecpointformatlist_length); | |
0f113f3e MC |
611 | if (!s->tlsext_ecpointformatlist) |
612 | goto err; | |
613 | s->tlsext_ecpointformatlist_length = | |
614 | ctx->tlsext_ecpointformatlist_length; | |
615 | } | |
616 | if (ctx->tlsext_ellipticcurvelist) { | |
617 | s->tlsext_ellipticcurvelist = | |
7644a9ae RS |
618 | OPENSSL_memdup(ctx->tlsext_ellipticcurvelist, |
619 | ctx->tlsext_ellipticcurvelist_length); | |
0f113f3e MC |
620 | if (!s->tlsext_ellipticcurvelist) |
621 | goto err; | |
622 | s->tlsext_ellipticcurvelist_length = | |
623 | ctx->tlsext_ellipticcurvelist_length; | |
624 | } | |
625 | # endif | |
bf48836c | 626 | # ifndef OPENSSL_NO_NEXTPROTONEG |
0f113f3e | 627 | s->next_proto_negotiated = NULL; |
ee2ffc27 | 628 | # endif |
6f017a8f | 629 | |
0f113f3e MC |
630 | if (s->ctx->alpn_client_proto_list) { |
631 | s->alpn_client_proto_list = | |
632 | OPENSSL_malloc(s->ctx->alpn_client_proto_list_len); | |
633 | if (s->alpn_client_proto_list == NULL) | |
634 | goto err; | |
635 | memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list, | |
636 | s->ctx->alpn_client_proto_list_len); | |
637 | s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len; | |
638 | } | |
d02b48c6 | 639 | |
696178ed | 640 | s->verified_chain = NULL; |
0f113f3e | 641 | s->verify_result = X509_V_OK; |
d02b48c6 | 642 | |
a974e64a MC |
643 | s->default_passwd_callback = ctx->default_passwd_callback; |
644 | s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata; | |
645 | ||
0f113f3e | 646 | s->method = ctx->method; |
d02b48c6 | 647 | |
0f113f3e MC |
648 | if (!s->method->ssl_new(s)) |
649 | goto err; | |
d02b48c6 | 650 | |
0f113f3e | 651 | s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1; |
bf21446a | 652 | |
61986d32 | 653 | if (!SSL_clear(s)) |
69f68237 | 654 | goto err; |
58964a49 | 655 | |
25a807bc F |
656 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data)) |
657 | goto err; | |
58964a49 | 658 | |
ddac1974 | 659 | #ifndef OPENSSL_NO_PSK |
0f113f3e MC |
660 | s->psk_client_callback = ctx->psk_client_callback; |
661 | s->psk_server_callback = ctx->psk_server_callback; | |
ddac1974 NL |
662 | #endif |
663 | ||
07bbc92c MC |
664 | s->job = NULL; |
665 | ||
ed29e82a RP |
666 | #ifndef OPENSSL_NO_CT |
667 | if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback, | |
668 | ctx->ct_validation_callback_arg)) | |
669 | goto err; | |
670 | #endif | |
671 | ||
16203f7b | 672 | return s; |
0f113f3e | 673 | err: |
62adbcee | 674 | SSL_free(s); |
0f113f3e | 675 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); |
16203f7b | 676 | return NULL; |
0f113f3e | 677 | } |
d02b48c6 | 678 | |
e417070c RS |
679 | int SSL_is_dtls(const SSL *s) |
680 | { | |
681 | return SSL_IS_DTLS(s) ? 1 : 0; | |
682 | } | |
683 | ||
c5ebfcab | 684 | int SSL_up_ref(SSL *s) |
a18a31e4 | 685 | { |
16203f7b | 686 | int i; |
c5ebfcab F |
687 | |
688 | if (CRYPTO_atomic_add(&s->references, 1, &i, s->lock) <= 0) | |
689 | return 0; | |
690 | ||
691 | REF_PRINT_COUNT("SSL", s); | |
692 | REF_ASSERT_ISNT(i < 2); | |
693 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
694 | } |
695 | ||
0f113f3e MC |
696 | int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, |
697 | unsigned int sid_ctx_len) | |
698 | { | |
699 | if (sid_ctx_len > sizeof ctx->sid_ctx) { | |
700 | SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT, | |
701 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
702 | return 0; | |
703 | } | |
704 | ctx->sid_ctx_length = sid_ctx_len; | |
705 | memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); | |
4eb77b26 BM |
706 | |
707 | return 1; | |
0f113f3e | 708 | } |
4eb77b26 | 709 | |
0f113f3e MC |
710 | int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, |
711 | unsigned int sid_ctx_len) | |
712 | { | |
713 | if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { | |
714 | SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT, | |
715 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
716 | return 0; | |
717 | } | |
718 | ssl->sid_ctx_length = sid_ctx_len; | |
719 | memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); | |
b4cadc6e BL |
720 | |
721 | return 1; | |
0f113f3e | 722 | } |
b4cadc6e | 723 | |
dc644fe2 | 724 | int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) |
0f113f3e | 725 | { |
16203f7b | 726 | CRYPTO_THREAD_write_lock(ctx->lock); |
0f113f3e | 727 | ctx->generate_session_id = cb; |
16203f7b | 728 | CRYPTO_THREAD_unlock(ctx->lock); |
0f113f3e MC |
729 | return 1; |
730 | } | |
dc644fe2 GT |
731 | |
732 | int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) | |
0f113f3e | 733 | { |
16203f7b | 734 | CRYPTO_THREAD_write_lock(ssl->lock); |
0f113f3e | 735 | ssl->generate_session_id = cb; |
16203f7b | 736 | CRYPTO_THREAD_unlock(ssl->lock); |
0f113f3e MC |
737 | return 1; |
738 | } | |
dc644fe2 | 739 | |
f85c9904 | 740 | int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, |
0f113f3e MC |
741 | unsigned int id_len) |
742 | { | |
743 | /* | |
744 | * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how | |
745 | * we can "construct" a session to give us the desired check - ie. to | |
746 | * find if there's a session in the hash table that would conflict with | |
747 | * any new session built out of this id/id_len and the ssl_version in use | |
748 | * by this SSL. | |
749 | */ | |
750 | SSL_SESSION r, *p; | |
751 | ||
752 | if (id_len > sizeof r.session_id) | |
753 | return 0; | |
754 | ||
755 | r.ssl_version = ssl->version; | |
756 | r.session_id_length = id_len; | |
757 | memcpy(r.session_id, id, id_len); | |
758 | ||
e2bb9b9b TS |
759 | CRYPTO_THREAD_read_lock(ssl->session_ctx->lock); |
760 | p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r); | |
761 | CRYPTO_THREAD_unlock(ssl->session_ctx->lock); | |
0f113f3e MC |
762 | return (p != NULL); |
763 | } | |
dc644fe2 | 764 | |
bb7cd4e3 | 765 | int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) |
0f113f3e MC |
766 | { |
767 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
768 | } | |
bb7cd4e3 DSH |
769 | |
770 | int SSL_set_purpose(SSL *s, int purpose) | |
0f113f3e MC |
771 | { |
772 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
773 | } | |
926a56bf | 774 | |
bb7cd4e3 | 775 | int SSL_CTX_set_trust(SSL_CTX *s, int trust) |
0f113f3e MC |
776 | { |
777 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
778 | } | |
bb7cd4e3 DSH |
779 | |
780 | int SSL_set_trust(SSL *s, int trust) | |
0f113f3e MC |
781 | { |
782 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
783 | } | |
bb7cd4e3 | 784 | |
919ba009 VD |
785 | int SSL_set1_host(SSL *s, const char *hostname) |
786 | { | |
787 | return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); | |
788 | } | |
789 | ||
790 | int SSL_add1_host(SSL *s, const char *hostname) | |
791 | { | |
792 | return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0); | |
793 | } | |
794 | ||
795 | void SSL_set_hostflags(SSL *s, unsigned int flags) | |
796 | { | |
797 | X509_VERIFY_PARAM_set_hostflags(s->param, flags); | |
798 | } | |
799 | ||
800 | const char *SSL_get0_peername(SSL *s) | |
801 | { | |
802 | return X509_VERIFY_PARAM_get0_peername(s->param); | |
803 | } | |
804 | ||
805 | int SSL_CTX_dane_enable(SSL_CTX *ctx) | |
806 | { | |
807 | return dane_ctx_enable(&ctx->dane); | |
808 | } | |
809 | ||
5ae4ceb9 VD |
810 | unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags) |
811 | { | |
812 | unsigned long orig = ctx->dane.flags; | |
813 | ||
814 | ctx->dane.flags |= flags; | |
815 | return orig; | |
816 | } | |
817 | ||
818 | unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags) | |
819 | { | |
820 | unsigned long orig = ctx->dane.flags; | |
821 | ||
822 | ctx->dane.flags &= ~flags; | |
823 | return orig; | |
824 | } | |
825 | ||
919ba009 VD |
826 | int SSL_dane_enable(SSL *s, const char *basedomain) |
827 | { | |
b9aec69a | 828 | SSL_DANE *dane = &s->dane; |
919ba009 VD |
829 | |
830 | if (s->ctx->dane.mdmax == 0) { | |
831 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED); | |
832 | return 0; | |
833 | } | |
834 | if (dane->trecs != NULL) { | |
835 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED); | |
836 | return 0; | |
837 | } | |
838 | ||
8d887efa VD |
839 | /* |
840 | * Default SNI name. This rejects empty names, while set1_host below | |
841 | * accepts them and disables host name checks. To avoid side-effects with | |
842 | * invalid input, set the SNI name first. | |
843 | */ | |
844 | if (s->tlsext_hostname == NULL) { | |
dccd20d1 | 845 | if (!SSL_set_tlsext_host_name(s, basedomain)) { |
8d887efa | 846 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); |
dccd20d1 | 847 | return -1; |
8d887efa VD |
848 | } |
849 | } | |
850 | ||
919ba009 VD |
851 | /* Primary RFC6125 reference identifier */ |
852 | if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) { | |
853 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); | |
854 | return -1; | |
855 | } | |
856 | ||
919ba009 VD |
857 | dane->mdpth = -1; |
858 | dane->pdpth = -1; | |
859 | dane->dctx = &s->ctx->dane; | |
860 | dane->trecs = sk_danetls_record_new_null(); | |
861 | ||
862 | if (dane->trecs == NULL) { | |
863 | SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE); | |
864 | return -1; | |
865 | } | |
866 | return 1; | |
867 | } | |
868 | ||
5ae4ceb9 VD |
869 | unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags) |
870 | { | |
871 | unsigned long orig = ssl->dane.flags; | |
872 | ||
873 | ssl->dane.flags |= flags; | |
874 | return orig; | |
875 | } | |
876 | ||
877 | unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags) | |
878 | { | |
879 | unsigned long orig = ssl->dane.flags; | |
880 | ||
881 | ssl->dane.flags &= ~flags; | |
882 | return orig; | |
883 | } | |
884 | ||
919ba009 VD |
885 | int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki) |
886 | { | |
b9aec69a | 887 | SSL_DANE *dane = &s->dane; |
919ba009 | 888 | |
c0a445a9 | 889 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
890 | return -1; |
891 | if (dane->mtlsa) { | |
892 | if (mcert) | |
893 | *mcert = dane->mcert; | |
894 | if (mspki) | |
895 | *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL; | |
896 | } | |
897 | return dane->mdpth; | |
898 | } | |
899 | ||
900 | int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector, | |
901 | uint8_t *mtype, unsigned const char **data, size_t *dlen) | |
902 | { | |
b9aec69a | 903 | SSL_DANE *dane = &s->dane; |
919ba009 | 904 | |
c0a445a9 | 905 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
906 | return -1; |
907 | if (dane->mtlsa) { | |
908 | if (usage) | |
909 | *usage = dane->mtlsa->usage; | |
910 | if (selector) | |
911 | *selector = dane->mtlsa->selector; | |
912 | if (mtype) | |
913 | *mtype = dane->mtlsa->mtype; | |
914 | if (data) | |
915 | *data = dane->mtlsa->data; | |
916 | if (dlen) | |
917 | *dlen = dane->mtlsa->dlen; | |
918 | } | |
919 | return dane->mdpth; | |
920 | } | |
921 | ||
b9aec69a | 922 | SSL_DANE *SSL_get0_dane(SSL *s) |
919ba009 VD |
923 | { |
924 | return &s->dane; | |
925 | } | |
926 | ||
927 | int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector, | |
928 | uint8_t mtype, unsigned char *data, size_t dlen) | |
929 | { | |
930 | return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen); | |
931 | } | |
932 | ||
933 | int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype, uint8_t ord) | |
934 | { | |
935 | return dane_mtype_set(&ctx->dane, md, mtype, ord); | |
936 | } | |
937 | ||
ccf11751 | 938 | int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) |
0f113f3e MC |
939 | { |
940 | return X509_VERIFY_PARAM_set1(ctx->param, vpm); | |
941 | } | |
ccf11751 DSH |
942 | |
943 | int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) | |
0f113f3e MC |
944 | { |
945 | return X509_VERIFY_PARAM_set1(ssl->param, vpm); | |
946 | } | |
ccf11751 | 947 | |
7af31968 | 948 | X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx) |
0f113f3e MC |
949 | { |
950 | return ctx->param; | |
951 | } | |
7af31968 DSH |
952 | |
953 | X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl) | |
0f113f3e MC |
954 | { |
955 | return ssl->param; | |
956 | } | |
7af31968 | 957 | |
a5ee80b9 | 958 | void SSL_certs_clear(SSL *s) |
0f113f3e MC |
959 | { |
960 | ssl_cert_clear_certs(s->cert); | |
961 | } | |
a5ee80b9 | 962 | |
4f43d0e7 | 963 | void SSL_free(SSL *s) |
0f113f3e MC |
964 | { |
965 | int i; | |
58964a49 | 966 | |
0f113f3e MC |
967 | if (s == NULL) |
968 | return; | |
e03ddfae | 969 | |
16203f7b | 970 | CRYPTO_atomic_add(&s->references, -1, &i, s->lock); |
f3f1cf84 | 971 | REF_PRINT_COUNT("SSL", s); |
0f113f3e MC |
972 | if (i > 0) |
973 | return; | |
f3f1cf84 | 974 | REF_ASSERT_ISNT(i < 0); |
d02b48c6 | 975 | |
222561fe | 976 | X509_VERIFY_PARAM_free(s->param); |
919ba009 | 977 | dane_final(&s->dane); |
0f113f3e MC |
978 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); |
979 | ||
2e7dc7cd MC |
980 | ssl_free_wbio_buffer(s); |
981 | ||
ca3a82c3 | 982 | if (s->wbio != s->rbio) |
0f113f3e | 983 | BIO_free_all(s->wbio); |
325cfa85 | 984 | BIO_free_all(s->rbio); |
0f113f3e | 985 | |
25aaa98a | 986 | BUF_MEM_free(s->init_buf); |
0f113f3e MC |
987 | |
988 | /* add extra stuff */ | |
25aaa98a RS |
989 | sk_SSL_CIPHER_free(s->cipher_list); |
990 | sk_SSL_CIPHER_free(s->cipher_list_by_id); | |
0f113f3e MC |
991 | |
992 | /* Make the next call work :-) */ | |
993 | if (s->session != NULL) { | |
994 | ssl_clear_bad_session(s); | |
995 | SSL_SESSION_free(s->session); | |
996 | } | |
997 | ||
d31fb0b5 | 998 | clear_ciphers(s); |
d02b48c6 | 999 | |
e0e920b1 | 1000 | ssl_cert_free(s->cert); |
0f113f3e | 1001 | /* Free up if allocated */ |
d02b48c6 | 1002 | |
b548a1f1 | 1003 | OPENSSL_free(s->tlsext_hostname); |
e0e920b1 | 1004 | SSL_CTX_free(s->initial_ctx); |
e481f9b9 | 1005 | #ifndef OPENSSL_NO_EC |
b548a1f1 RS |
1006 | OPENSSL_free(s->tlsext_ecpointformatlist); |
1007 | OPENSSL_free(s->tlsext_ellipticcurvelist); | |
e481f9b9 | 1008 | #endif /* OPENSSL_NO_EC */ |
222561fe | 1009 | sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free); |
3e41ac35 | 1010 | #ifndef OPENSSL_NO_OCSP |
25aaa98a | 1011 | sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); |
3e41ac35 | 1012 | #endif |
ed29e82a RP |
1013 | #ifndef OPENSSL_NO_CT |
1014 | SCT_LIST_free(s->scts); | |
1015 | OPENSSL_free(s->tlsext_scts); | |
1016 | #endif | |
b548a1f1 RS |
1017 | OPENSSL_free(s->tlsext_ocsp_resp); |
1018 | OPENSSL_free(s->alpn_client_proto_list); | |
0f113f3e | 1019 | |
222561fe | 1020 | sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free); |
0f113f3e | 1021 | |
696178ed DSH |
1022 | sk_X509_pop_free(s->verified_chain, X509_free); |
1023 | ||
0f113f3e MC |
1024 | if (s->method != NULL) |
1025 | s->method->ssl_free(s); | |
1026 | ||
f161995e | 1027 | RECORD_LAYER_release(&s->rlayer); |
33d23b87 | 1028 | |
e0e920b1 | 1029 | SSL_CTX_free(s->ctx); |
7c3908dd | 1030 | |
ff75a257 MC |
1031 | ASYNC_WAIT_CTX_free(s->waitctx); |
1032 | ||
e481f9b9 | 1033 | #if !defined(OPENSSL_NO_NEXTPROTONEG) |
b548a1f1 | 1034 | OPENSSL_free(s->next_proto_negotiated); |
ee2ffc27 BL |
1035 | #endif |
1036 | ||
e783bae2 | 1037 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 1038 | sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); |
0f113f3e MC |
1039 | #endif |
1040 | ||
16203f7b AG |
1041 | CRYPTO_THREAD_lock_free(s->lock); |
1042 | ||
0f113f3e MC |
1043 | OPENSSL_free(s); |
1044 | } | |
1045 | ||
3ffbe008 MC |
1046 | void SSL_set_rbio(SSL *s, BIO *rbio) |
1047 | { | |
8e3854ac | 1048 | if (s->rbio != rbio && s->rbio != s->wbio) |
3ffbe008 MC |
1049 | BIO_free_all(s->rbio); |
1050 | s->rbio = rbio; | |
1051 | } | |
1052 | ||
1053 | void SSL_set_wbio(SSL *s, BIO *wbio) | |
0f113f3e MC |
1054 | { |
1055 | /* | |
1056 | * If the output buffering BIO is still in place, remove it | |
1057 | */ | |
2e7dc7cd MC |
1058 | if (s->bbio != NULL) |
1059 | s->wbio = BIO_pop(s->wbio); | |
1060 | ||
ca3a82c3 | 1061 | if (s->wbio != wbio && s->rbio != s->wbio) |
0f113f3e | 1062 | BIO_free_all(s->wbio); |
0f113f3e | 1063 | s->wbio = wbio; |
2e7dc7cd MC |
1064 | |
1065 | /* Re-attach |bbio| to the new |wbio|. */ | |
1066 | if (s->bbio != NULL) | |
1067 | s->wbio = BIO_push(s->bbio, s->wbio); | |
0f113f3e | 1068 | } |
d02b48c6 | 1069 | |
3ffbe008 MC |
1070 | void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) |
1071 | { | |
1072 | SSL_set_wbio(s, wbio); | |
1073 | SSL_set_rbio(s, rbio); | |
1074 | } | |
1075 | ||
0821bcd4 | 1076 | BIO *SSL_get_rbio(const SSL *s) |
0f113f3e | 1077 | { |
2e7dc7cd | 1078 | return s->rbio; |
0f113f3e | 1079 | } |
d02b48c6 | 1080 | |
0821bcd4 | 1081 | BIO *SSL_get_wbio(const SSL *s) |
0f113f3e | 1082 | { |
2e7dc7cd MC |
1083 | if (s->bbio != NULL) { |
1084 | /* | |
1085 | * If |bbio| is active, the true caller-configured BIO is its | |
1086 | * |next_bio|. | |
1087 | */ | |
1088 | return BIO_next(s->bbio); | |
1089 | } | |
1090 | return s->wbio; | |
0f113f3e | 1091 | } |
d02b48c6 | 1092 | |
0821bcd4 | 1093 | int SSL_get_fd(const SSL *s) |
0f113f3e | 1094 | { |
2e7dc7cd | 1095 | return SSL_get_rfd(s); |
0f113f3e | 1096 | } |
24cbf3ef | 1097 | |
0821bcd4 | 1098 | int SSL_get_rfd(const SSL *s) |
0f113f3e MC |
1099 | { |
1100 | int ret = -1; | |
1101 | BIO *b, *r; | |
1102 | ||
1103 | b = SSL_get_rbio(s); | |
1104 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1105 | if (r != NULL) | |
1106 | BIO_get_fd(r, &ret); | |
1107 | return (ret); | |
1108 | } | |
d02b48c6 | 1109 | |
0821bcd4 | 1110 | int SSL_get_wfd(const SSL *s) |
0f113f3e MC |
1111 | { |
1112 | int ret = -1; | |
1113 | BIO *b, *r; | |
1114 | ||
1115 | b = SSL_get_wbio(s); | |
1116 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1117 | if (r != NULL) | |
1118 | BIO_get_fd(r, &ret); | |
1119 | return (ret); | |
1120 | } | |
24cbf3ef | 1121 | |
bc36ee62 | 1122 | #ifndef OPENSSL_NO_SOCK |
0f113f3e MC |
1123 | int SSL_set_fd(SSL *s, int fd) |
1124 | { | |
1125 | int ret = 0; | |
1126 | BIO *bio = NULL; | |
1127 | ||
1128 | bio = BIO_new(BIO_s_socket()); | |
1129 | ||
1130 | if (bio == NULL) { | |
1131 | SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB); | |
1132 | goto err; | |
1133 | } | |
1134 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
1135 | SSL_set_bio(s, bio, bio); | |
1136 | ret = 1; | |
1137 | err: | |
1138 | return (ret); | |
1139 | } | |
d02b48c6 | 1140 | |
0f113f3e MC |
1141 | int SSL_set_wfd(SSL *s, int fd) |
1142 | { | |
2e7dc7cd | 1143 | BIO *rbio = SSL_get_rbio(s); |
0f113f3e | 1144 | |
2e7dc7cd MC |
1145 | if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET |
1146 | || (int)BIO_get_fd(rbio, NULL) != fd) { | |
1147 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1148 | |
1149 | if (bio == NULL) { | |
1150 | SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1151 | return 0; |
0f113f3e MC |
1152 | } |
1153 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
2e7dc7cd MC |
1154 | SSL_set_wbio(s, bio); |
1155 | } else { | |
1156 | SSL_set_wbio(s, rbio); | |
1157 | } | |
1158 | return 1; | |
0f113f3e MC |
1159 | } |
1160 | ||
1161 | int SSL_set_rfd(SSL *s, int fd) | |
1162 | { | |
2e7dc7cd | 1163 | BIO *wbio = SSL_get_wbio(s); |
0f113f3e | 1164 | |
2e7dc7cd MC |
1165 | if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET |
1166 | || ((int)BIO_get_fd(wbio, NULL) != fd)) { | |
1167 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1168 | |
1169 | if (bio == NULL) { | |
1170 | SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1171 | return 0; |
0f113f3e MC |
1172 | } |
1173 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
2e7dc7cd MC |
1174 | SSL_set_rbio(s, bio); |
1175 | } else { | |
1176 | SSL_set_rbio(s, wbio); | |
1177 | } | |
1178 | ||
1179 | return 1; | |
0f113f3e MC |
1180 | } |
1181 | #endif | |
ca03109c BM |
1182 | |
1183 | /* return length of latest Finished message we sent, copy to 'buf' */ | |
0821bcd4 | 1184 | size_t SSL_get_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1185 | { |
1186 | size_t ret = 0; | |
1187 | ||
1188 | if (s->s3 != NULL) { | |
1189 | ret = s->s3->tmp.finish_md_len; | |
1190 | if (count > ret) | |
1191 | count = ret; | |
1192 | memcpy(buf, s->s3->tmp.finish_md, count); | |
1193 | } | |
1194 | return ret; | |
1195 | } | |
ca03109c BM |
1196 | |
1197 | /* return length of latest Finished message we expected, copy to 'buf' */ | |
0821bcd4 | 1198 | size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1199 | { |
1200 | size_t ret = 0; | |
ca03109c | 1201 | |
0f113f3e MC |
1202 | if (s->s3 != NULL) { |
1203 | ret = s->s3->tmp.peer_finish_md_len; | |
1204 | if (count > ret) | |
1205 | count = ret; | |
1206 | memcpy(buf, s->s3->tmp.peer_finish_md, count); | |
1207 | } | |
1208 | return ret; | |
1209 | } | |
ca03109c | 1210 | |
0821bcd4 | 1211 | int SSL_get_verify_mode(const SSL *s) |
0f113f3e MC |
1212 | { |
1213 | return (s->verify_mode); | |
1214 | } | |
d02b48c6 | 1215 | |
0821bcd4 | 1216 | int SSL_get_verify_depth(const SSL *s) |
0f113f3e MC |
1217 | { |
1218 | return X509_VERIFY_PARAM_get_depth(s->param); | |
1219 | } | |
7f89714e | 1220 | |
0f113f3e MC |
1221 | int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) { |
1222 | return (s->verify_callback); | |
1223 | } | |
d02b48c6 | 1224 | |
0821bcd4 | 1225 | int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) |
0f113f3e MC |
1226 | { |
1227 | return (ctx->verify_mode); | |
1228 | } | |
d02b48c6 | 1229 | |
0821bcd4 | 1230 | int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) |
0f113f3e MC |
1231 | { |
1232 | return X509_VERIFY_PARAM_get_depth(ctx->param); | |
1233 | } | |
1234 | ||
1235 | int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) { | |
1236 | return (ctx->default_verify_callback); | |
1237 | } | |
1238 | ||
1239 | void SSL_set_verify(SSL *s, int mode, | |
1240 | int (*callback) (int ok, X509_STORE_CTX *ctx)) | |
1241 | { | |
1242 | s->verify_mode = mode; | |
1243 | if (callback != NULL) | |
1244 | s->verify_callback = callback; | |
1245 | } | |
1246 | ||
1247 | void SSL_set_verify_depth(SSL *s, int depth) | |
1248 | { | |
1249 | X509_VERIFY_PARAM_set_depth(s->param, depth); | |
1250 | } | |
1251 | ||
1252 | void SSL_set_read_ahead(SSL *s, int yes) | |
1253 | { | |
52e1d7b1 | 1254 | RECORD_LAYER_set_read_ahead(&s->rlayer, yes); |
0f113f3e | 1255 | } |
d02b48c6 | 1256 | |
0821bcd4 | 1257 | int SSL_get_read_ahead(const SSL *s) |
0f113f3e | 1258 | { |
52e1d7b1 | 1259 | return RECORD_LAYER_get_read_ahead(&s->rlayer); |
0f113f3e | 1260 | } |
d02b48c6 | 1261 | |
0821bcd4 | 1262 | int SSL_pending(const SSL *s) |
0f113f3e MC |
1263 | { |
1264 | /* | |
1265 | * SSL_pending cannot work properly if read-ahead is enabled | |
1266 | * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is | |
1267 | * impossible to fix since SSL_pending cannot report errors that may be | |
1268 | * observed while scanning the new data. (Note that SSL_pending() is | |
1269 | * often used as a boolean value, so we'd better not return -1.) | |
1270 | */ | |
1271 | return (s->method->ssl_pending(s)); | |
1272 | } | |
d02b48c6 | 1273 | |
49580f25 MC |
1274 | int SSL_has_pending(const SSL *s) |
1275 | { | |
1276 | /* | |
1277 | * Similar to SSL_pending() but returns a 1 to indicate that we have | |
1278 | * unprocessed data available or 0 otherwise (as opposed to the number of | |
1279 | * bytes available). Unlike SSL_pending() this will take into account | |
1280 | * read_ahead data. A 1 return simply indicates that we have unprocessed | |
1281 | * data. That data may not result in any application data, or we may fail | |
1282 | * to parse the records for some reason. | |
1283 | */ | |
1284 | if (SSL_pending(s)) | |
1285 | return 1; | |
1286 | ||
1287 | return RECORD_LAYER_read_pending(&s->rlayer); | |
1288 | } | |
1289 | ||
0821bcd4 | 1290 | X509 *SSL_get_peer_certificate(const SSL *s) |
0f113f3e MC |
1291 | { |
1292 | X509 *r; | |
d02b48c6 | 1293 | |
0f113f3e MC |
1294 | if ((s == NULL) || (s->session == NULL)) |
1295 | r = NULL; | |
1296 | else | |
1297 | r = s->session->peer; | |
d02b48c6 | 1298 | |
0f113f3e MC |
1299 | if (r == NULL) |
1300 | return (r); | |
d02b48c6 | 1301 | |
05f0fb9f | 1302 | X509_up_ref(r); |
0f113f3e MC |
1303 | |
1304 | return (r); | |
1305 | } | |
d02b48c6 | 1306 | |
0821bcd4 | 1307 | STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) |
0f113f3e MC |
1308 | { |
1309 | STACK_OF(X509) *r; | |
1310 | ||
c34b0f99 | 1311 | if ((s == NULL) || (s->session == NULL)) |
0f113f3e MC |
1312 | r = NULL; |
1313 | else | |
c34b0f99 | 1314 | r = s->session->peer_chain; |
0f113f3e MC |
1315 | |
1316 | /* | |
1317 | * If we are a client, cert_chain includes the peer's own certificate; if | |
1318 | * we are a server, it does not. | |
1319 | */ | |
1320 | ||
1321 | return (r); | |
1322 | } | |
1323 | ||
1324 | /* | |
1325 | * Now in theory, since the calling process own 't' it should be safe to | |
1326 | * modify. We need to be able to read f without being hassled | |
1327 | */ | |
17dd65e6 | 1328 | int SSL_copy_session_id(SSL *t, const SSL *f) |
0f113f3e | 1329 | { |
16203f7b | 1330 | int i; |
0f113f3e | 1331 | /* Do we need to to SSL locking? */ |
61986d32 | 1332 | if (!SSL_set_session(t, SSL_get_session(f))) { |
17dd65e6 | 1333 | return 0; |
69f68237 | 1334 | } |
0f113f3e MC |
1335 | |
1336 | /* | |
87d9cafa | 1337 | * what if we are setup for one protocol version but want to talk another |
0f113f3e MC |
1338 | */ |
1339 | if (t->method != f->method) { | |
919ba009 VD |
1340 | t->method->ssl_free(t); |
1341 | t->method = f->method; | |
1342 | if (t->method->ssl_new(t) == 0) | |
1343 | return 0; | |
0f113f3e MC |
1344 | } |
1345 | ||
16203f7b | 1346 | CRYPTO_atomic_add(&f->cert->references, 1, &i, f->cert->lock); |
24a0d393 KR |
1347 | ssl_cert_free(t->cert); |
1348 | t->cert = f->cert; | |
61986d32 | 1349 | if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) { |
17dd65e6 | 1350 | return 0; |
69f68237 | 1351 | } |
17dd65e6 MC |
1352 | |
1353 | return 1; | |
0f113f3e | 1354 | } |
d02b48c6 | 1355 | |
58964a49 | 1356 | /* Fix this so it checks all the valid key/cert options */ |
0821bcd4 | 1357 | int SSL_CTX_check_private_key(const SSL_CTX *ctx) |
0f113f3e MC |
1358 | { |
1359 | if ((ctx == NULL) || | |
24a0d393 | 1360 | (ctx->cert->key->x509 == NULL)) { |
0f113f3e MC |
1361 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, |
1362 | SSL_R_NO_CERTIFICATE_ASSIGNED); | |
1363 | return (0); | |
1364 | } | |
1365 | if (ctx->cert->key->privatekey == NULL) { | |
1366 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, | |
1367 | SSL_R_NO_PRIVATE_KEY_ASSIGNED); | |
1368 | return (0); | |
1369 | } | |
1370 | return (X509_check_private_key | |
1371 | (ctx->cert->key->x509, ctx->cert->key->privatekey)); | |
1372 | } | |
d02b48c6 | 1373 | |
58964a49 | 1374 | /* Fix this function so that it takes an optional type parameter */ |
0821bcd4 | 1375 | int SSL_check_private_key(const SSL *ssl) |
0f113f3e MC |
1376 | { |
1377 | if (ssl == NULL) { | |
1378 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER); | |
1379 | return (0); | |
1380 | } | |
0f113f3e MC |
1381 | if (ssl->cert->key->x509 == NULL) { |
1382 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
1383 | return (0); | |
1384 | } | |
1385 | if (ssl->cert->key->privatekey == NULL) { | |
1386 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); | |
1387 | return (0); | |
1388 | } | |
1389 | return (X509_check_private_key(ssl->cert->key->x509, | |
1390 | ssl->cert->key->privatekey)); | |
1391 | } | |
d02b48c6 | 1392 | |
07bbc92c MC |
1393 | int SSL_waiting_for_async(SSL *s) |
1394 | { | |
e8aa8b6c | 1395 | if (s->job) |
82676094 MC |
1396 | return 1; |
1397 | ||
07bbc92c MC |
1398 | return 0; |
1399 | } | |
1400 | ||
ff75a257 | 1401 | int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds) |
f4da39d2 | 1402 | { |
ff75a257 MC |
1403 | ASYNC_WAIT_CTX *ctx = s->waitctx; |
1404 | ||
1405 | if (ctx == NULL) | |
1406 | return 0; | |
1407 | return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds); | |
1408 | } | |
f4da39d2 | 1409 | |
ff75a257 MC |
1410 | int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds, |
1411 | OSSL_ASYNC_FD *delfd, size_t *numdelfds) | |
1412 | { | |
1413 | ASYNC_WAIT_CTX *ctx = s->waitctx; | |
1414 | ||
1415 | if (ctx == NULL) | |
1416 | return 0; | |
1417 | return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd, | |
1418 | numdelfds); | |
f4da39d2 MC |
1419 | } |
1420 | ||
4f43d0e7 | 1421 | int SSL_accept(SSL *s) |
0f113f3e | 1422 | { |
c4c32155 | 1423 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1424 | /* Not properly initialized yet */ |
1425 | SSL_set_accept_state(s); | |
07bbc92c | 1426 | } |
add2f5ca MC |
1427 | |
1428 | return SSL_do_handshake(s); | |
0f113f3e | 1429 | } |
d02b48c6 | 1430 | |
4f43d0e7 | 1431 | int SSL_connect(SSL *s) |
0f113f3e | 1432 | { |
c4c32155 | 1433 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1434 | /* Not properly initialized yet */ |
1435 | SSL_set_connect_state(s); | |
add2f5ca | 1436 | } |
b31b04d9 | 1437 | |
add2f5ca | 1438 | return SSL_do_handshake(s); |
0f113f3e | 1439 | } |
d02b48c6 | 1440 | |
0821bcd4 | 1441 | long SSL_get_default_timeout(const SSL *s) |
0f113f3e MC |
1442 | { |
1443 | return (s->method->get_timeout()); | |
1444 | } | |
1445 | ||
7fecbf6f | 1446 | static int ssl_start_async_job(SSL *s, struct ssl_async_args *args, |
add2f5ca MC |
1447 | int (*func)(void *)) { |
1448 | int ret; | |
ff75a257 MC |
1449 | if (s->waitctx == NULL) { |
1450 | s->waitctx = ASYNC_WAIT_CTX_new(); | |
1451 | if (s->waitctx == NULL) | |
1452 | return -1; | |
1453 | } | |
e8aa8b6c | 1454 | switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args, |
add2f5ca MC |
1455 | sizeof(struct ssl_async_args))) { |
1456 | case ASYNC_ERR: | |
1457 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1458 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC); |
add2f5ca MC |
1459 | return -1; |
1460 | case ASYNC_PAUSE: | |
1461 | s->rwstate = SSL_ASYNC_PAUSED; | |
1462 | return -1; | |
fc7f190c MC |
1463 | case ASYNC_NO_JOBS: |
1464 | s->rwstate = SSL_ASYNC_NO_JOBS; | |
1465 | return -1; | |
add2f5ca MC |
1466 | case ASYNC_FINISH: |
1467 | s->job = NULL; | |
1468 | return ret; | |
1469 | default: | |
1470 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1471 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR); |
add2f5ca MC |
1472 | /* Shouldn't happen */ |
1473 | return -1; | |
1474 | } | |
1475 | } | |
07bbc92c | 1476 | |
add2f5ca | 1477 | static int ssl_io_intern(void *vargs) |
07bbc92c MC |
1478 | { |
1479 | struct ssl_async_args *args; | |
1480 | SSL *s; | |
1481 | void *buf; | |
1482 | int num; | |
1483 | ||
1484 | args = (struct ssl_async_args *)vargs; | |
1485 | s = args->s; | |
1486 | buf = args->buf; | |
1487 | num = args->num; | |
ec447924 MC |
1488 | switch (args->type) { |
1489 | case READFUNC: | |
1490 | return args->f.func_read(s, buf, num); | |
1491 | case WRITEFUNC: | |
1492 | return args->f.func_write(s, buf, num); | |
1493 | case OTHERFUNC: | |
1494 | return args->f.func_other(s); | |
1495 | } | |
1496 | return -1; | |
07bbc92c MC |
1497 | } |
1498 | ||
0f113f3e MC |
1499 | int SSL_read(SSL *s, void *buf, int num) |
1500 | { | |
c4c32155 | 1501 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1502 | SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); |
1503 | return -1; | |
1504 | } | |
1505 | ||
1506 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
1507 | s->rwstate = SSL_NOTHING; | |
1508 | return (0); | |
1509 | } | |
07bbc92c | 1510 | |
e8aa8b6c | 1511 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca MC |
1512 | struct ssl_async_args args; |
1513 | ||
1514 | args.s = s; | |
1515 | args.buf = buf; | |
1516 | args.num = num; | |
ec447924 MC |
1517 | args.type = READFUNC; |
1518 | args.f.func_read = s->method->ssl_read; | |
add2f5ca | 1519 | |
7fecbf6f | 1520 | return ssl_start_async_job(s, &args, ssl_io_intern); |
07bbc92c MC |
1521 | } else { |
1522 | return s->method->ssl_read(s, buf, num); | |
1523 | } | |
0f113f3e MC |
1524 | } |
1525 | ||
1526 | int SSL_peek(SSL *s, void *buf, int num) | |
1527 | { | |
c4c32155 | 1528 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1529 | SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED); |
1530 | return -1; | |
1531 | } | |
1532 | ||
1533 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
1534 | return (0); | |
1535 | } | |
e8aa8b6c | 1536 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1537 | struct ssl_async_args args; |
0f113f3e | 1538 | |
add2f5ca MC |
1539 | args.s = s; |
1540 | args.buf = buf; | |
1541 | args.num = num; | |
ec447924 MC |
1542 | args.type = READFUNC; |
1543 | args.f.func_read = s->method->ssl_peek; | |
07bbc92c | 1544 | |
7fecbf6f | 1545 | return ssl_start_async_job(s, &args, ssl_io_intern); |
add2f5ca MC |
1546 | } else { |
1547 | return s->method->ssl_peek(s, buf, num); | |
1548 | } | |
07bbc92c MC |
1549 | } |
1550 | ||
0f113f3e MC |
1551 | int SSL_write(SSL *s, const void *buf, int num) |
1552 | { | |
c4c32155 | 1553 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1554 | SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED); |
1555 | return -1; | |
1556 | } | |
1557 | ||
1558 | if (s->shutdown & SSL_SENT_SHUTDOWN) { | |
1559 | s->rwstate = SSL_NOTHING; | |
1560 | SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN); | |
1561 | return (-1); | |
1562 | } | |
07bbc92c | 1563 | |
e8aa8b6c | 1564 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca MC |
1565 | struct ssl_async_args args; |
1566 | ||
1567 | args.s = s; | |
1568 | args.buf = (void *)buf; | |
1569 | args.num = num; | |
ec447924 MC |
1570 | args.type = WRITEFUNC; |
1571 | args.f.func_write = s->method->ssl_write; | |
add2f5ca | 1572 | |
7fecbf6f | 1573 | return ssl_start_async_job(s, &args, ssl_io_intern); |
07bbc92c MC |
1574 | } else { |
1575 | return s->method->ssl_write(s, buf, num); | |
1576 | } | |
0f113f3e | 1577 | } |
d02b48c6 | 1578 | |
4f43d0e7 | 1579 | int SSL_shutdown(SSL *s) |
0f113f3e MC |
1580 | { |
1581 | /* | |
1582 | * Note that this function behaves differently from what one might | |
1583 | * expect. Return values are 0 for no success (yet), 1 for success; but | |
1584 | * calling it once is usually not enough, even if blocking I/O is used | |
1585 | * (see ssl3_shutdown). | |
1586 | */ | |
1587 | ||
c4c32155 | 1588 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1589 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); |
1590 | return -1; | |
1591 | } | |
1592 | ||
64f9f406 | 1593 | if (!SSL_in_init(s)) { |
e8aa8b6c | 1594 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
64f9f406 | 1595 | struct ssl_async_args args; |
ec447924 | 1596 | |
64f9f406 MC |
1597 | args.s = s; |
1598 | args.type = OTHERFUNC; | |
1599 | args.f.func_other = s->method->ssl_shutdown; | |
ec447924 | 1600 | |
64f9f406 MC |
1601 | return ssl_start_async_job(s, &args, ssl_io_intern); |
1602 | } else { | |
1603 | return s->method->ssl_shutdown(s); | |
1604 | } | |
ec447924 | 1605 | } else { |
64f9f406 MC |
1606 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT); |
1607 | return -1; | |
ec447924 | 1608 | } |
0f113f3e | 1609 | } |
d02b48c6 | 1610 | |
4f43d0e7 | 1611 | int SSL_renegotiate(SSL *s) |
0f113f3e MC |
1612 | { |
1613 | if (s->renegotiate == 0) | |
1614 | s->renegotiate = 1; | |
44959ee4 | 1615 | |
0f113f3e | 1616 | s->new_session = 1; |
44959ee4 | 1617 | |
0f113f3e MC |
1618 | return (s->method->ssl_renegotiate(s)); |
1619 | } | |
d02b48c6 | 1620 | |
44959ee4 | 1621 | int SSL_renegotiate_abbreviated(SSL *s) |
0f113f3e MC |
1622 | { |
1623 | if (s->renegotiate == 0) | |
1624 | s->renegotiate = 1; | |
c519e89f | 1625 | |
0f113f3e | 1626 | s->new_session = 0; |
c519e89f | 1627 | |
0f113f3e MC |
1628 | return (s->method->ssl_renegotiate(s)); |
1629 | } | |
44959ee4 | 1630 | |
6b0e9fac | 1631 | int SSL_renegotiate_pending(SSL *s) |
0f113f3e MC |
1632 | { |
1633 | /* | |
1634 | * becomes true when negotiation is requested; false again once a | |
1635 | * handshake has finished | |
1636 | */ | |
1637 | return (s->renegotiate != 0); | |
1638 | } | |
1639 | ||
1640 | long SSL_ctrl(SSL *s, int cmd, long larg, void *parg) | |
1641 | { | |
1642 | long l; | |
1643 | ||
1644 | switch (cmd) { | |
1645 | case SSL_CTRL_GET_READ_AHEAD: | |
52e1d7b1 | 1646 | return (RECORD_LAYER_get_read_ahead(&s->rlayer)); |
0f113f3e | 1647 | case SSL_CTRL_SET_READ_AHEAD: |
52e1d7b1 MC |
1648 | l = RECORD_LAYER_get_read_ahead(&s->rlayer); |
1649 | RECORD_LAYER_set_read_ahead(&s->rlayer, larg); | |
0f113f3e MC |
1650 | return (l); |
1651 | ||
1652 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
1653 | s->msg_callback_arg = parg; | |
1654 | return 1; | |
1655 | ||
0f113f3e MC |
1656 | case SSL_CTRL_MODE: |
1657 | return (s->mode |= larg); | |
1658 | case SSL_CTRL_CLEAR_MODE: | |
1659 | return (s->mode &= ~larg); | |
1660 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
1661 | return (s->max_cert_list); | |
1662 | case SSL_CTRL_SET_MAX_CERT_LIST: | |
1663 | l = s->max_cert_list; | |
1664 | s->max_cert_list = larg; | |
1665 | return (l); | |
1666 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
1667 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
1668 | return 0; | |
1669 | s->max_send_fragment = larg; | |
d102d9df MC |
1670 | if (s->max_send_fragment < s->split_send_fragment) |
1671 | s->split_send_fragment = s->max_send_fragment; | |
1672 | return 1; | |
1673 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: | |
6b99e875 | 1674 | if ((unsigned int)larg > s->max_send_fragment || larg == 0) |
d102d9df MC |
1675 | return 0; |
1676 | s->split_send_fragment = larg; | |
0f113f3e | 1677 | return 1; |
d102d9df MC |
1678 | case SSL_CTRL_SET_MAX_PIPELINES: |
1679 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
1680 | return 0; | |
1681 | s->max_pipelines = larg; | |
94777c9c MC |
1682 | if (larg > 1) |
1683 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
07077415 | 1684 | return 1; |
0f113f3e MC |
1685 | case SSL_CTRL_GET_RI_SUPPORT: |
1686 | if (s->s3) | |
1687 | return s->s3->send_connection_binding; | |
1688 | else | |
1689 | return 0; | |
1690 | case SSL_CTRL_CERT_FLAGS: | |
1691 | return (s->cert->cert_flags |= larg); | |
1692 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
1693 | return (s->cert->cert_flags &= ~larg); | |
1694 | ||
1695 | case SSL_CTRL_GET_RAW_CIPHERLIST: | |
1696 | if (parg) { | |
76106e60 | 1697 | if (s->s3->tmp.ciphers_raw == NULL) |
0f113f3e | 1698 | return 0; |
76106e60 DSH |
1699 | *(unsigned char **)parg = s->s3->tmp.ciphers_raw; |
1700 | return (int)s->s3->tmp.ciphers_rawlen; | |
e9fa092e EK |
1701 | } else { |
1702 | return TLS_CIPHER_LEN; | |
1703 | } | |
c5364614 | 1704 | case SSL_CTRL_GET_EXTMS_SUPPORT: |
024f543c | 1705 | if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s)) |
dccd20d1 F |
1706 | return -1; |
1707 | if (s->session->flags & SSL_SESS_FLAG_EXTMS) | |
c5364614 DSH |
1708 | return 1; |
1709 | else | |
1710 | return 0; | |
7946ab33 | 1711 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
4fa52141 VD |
1712 | return ssl_set_version_bound(s->ctx->method->version, (int)larg, |
1713 | &s->min_proto_version); | |
7946ab33 | 1714 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
4fa52141 VD |
1715 | return ssl_set_version_bound(s->ctx->method->version, (int)larg, |
1716 | &s->max_proto_version); | |
0f113f3e MC |
1717 | default: |
1718 | return (s->method->ssl_ctrl(s, cmd, larg, parg)); | |
1719 | } | |
1720 | } | |
1721 | ||
1722 | long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
1723 | { | |
1724 | switch (cmd) { | |
1725 | case SSL_CTRL_SET_MSG_CALLBACK: | |
1726 | s->msg_callback = (void (*) | |
1727 | (int write_p, int version, int content_type, | |
1728 | const void *buf, size_t len, SSL *ssl, | |
1729 | void *arg))(fp); | |
1730 | return 1; | |
1731 | ||
1732 | default: | |
1733 | return (s->method->ssl_callback_ctrl(s, cmd, fp)); | |
1734 | } | |
1735 | } | |
d3442bc7 | 1736 | |
3c1d6bbc | 1737 | LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx) |
0f113f3e MC |
1738 | { |
1739 | return ctx->sessions; | |
1740 | } | |
1741 | ||
1742 | long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
1743 | { | |
1744 | long l; | |
1745 | /* For some cases with ctx == NULL perform syntax checks */ | |
1746 | if (ctx == NULL) { | |
1747 | switch (cmd) { | |
14536c8c | 1748 | #ifndef OPENSSL_NO_EC |
0f113f3e MC |
1749 | case SSL_CTRL_SET_CURVES_LIST: |
1750 | return tls1_set_curves_list(NULL, NULL, parg); | |
1751 | #endif | |
1752 | case SSL_CTRL_SET_SIGALGS_LIST: | |
1753 | case SSL_CTRL_SET_CLIENT_SIGALGS_LIST: | |
1754 | return tls1_set_sigalgs_list(NULL, parg, 0); | |
1755 | default: | |
1756 | return 0; | |
1757 | } | |
1758 | } | |
1759 | ||
1760 | switch (cmd) { | |
1761 | case SSL_CTRL_GET_READ_AHEAD: | |
1762 | return (ctx->read_ahead); | |
1763 | case SSL_CTRL_SET_READ_AHEAD: | |
1764 | l = ctx->read_ahead; | |
1765 | ctx->read_ahead = larg; | |
1766 | return (l); | |
1767 | ||
1768 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
1769 | ctx->msg_callback_arg = parg; | |
1770 | return 1; | |
1771 | ||
1772 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
1773 | return (ctx->max_cert_list); | |
1774 | case SSL_CTRL_SET_MAX_CERT_LIST: | |
1775 | l = ctx->max_cert_list; | |
1776 | ctx->max_cert_list = larg; | |
1777 | return (l); | |
1778 | ||
1779 | case SSL_CTRL_SET_SESS_CACHE_SIZE: | |
1780 | l = ctx->session_cache_size; | |
1781 | ctx->session_cache_size = larg; | |
1782 | return (l); | |
1783 | case SSL_CTRL_GET_SESS_CACHE_SIZE: | |
1784 | return (ctx->session_cache_size); | |
1785 | case SSL_CTRL_SET_SESS_CACHE_MODE: | |
1786 | l = ctx->session_cache_mode; | |
1787 | ctx->session_cache_mode = larg; | |
1788 | return (l); | |
1789 | case SSL_CTRL_GET_SESS_CACHE_MODE: | |
1790 | return (ctx->session_cache_mode); | |
1791 | ||
1792 | case SSL_CTRL_SESS_NUMBER: | |
1793 | return (lh_SSL_SESSION_num_items(ctx->sessions)); | |
1794 | case SSL_CTRL_SESS_CONNECT: | |
1795 | return (ctx->stats.sess_connect); | |
1796 | case SSL_CTRL_SESS_CONNECT_GOOD: | |
1797 | return (ctx->stats.sess_connect_good); | |
1798 | case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: | |
1799 | return (ctx->stats.sess_connect_renegotiate); | |
1800 | case SSL_CTRL_SESS_ACCEPT: | |
1801 | return (ctx->stats.sess_accept); | |
1802 | case SSL_CTRL_SESS_ACCEPT_GOOD: | |
1803 | return (ctx->stats.sess_accept_good); | |
1804 | case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: | |
1805 | return (ctx->stats.sess_accept_renegotiate); | |
1806 | case SSL_CTRL_SESS_HIT: | |
1807 | return (ctx->stats.sess_hit); | |
1808 | case SSL_CTRL_SESS_CB_HIT: | |
1809 | return (ctx->stats.sess_cb_hit); | |
1810 | case SSL_CTRL_SESS_MISSES: | |
1811 | return (ctx->stats.sess_miss); | |
1812 | case SSL_CTRL_SESS_TIMEOUTS: | |
1813 | return (ctx->stats.sess_timeout); | |
1814 | case SSL_CTRL_SESS_CACHE_FULL: | |
1815 | return (ctx->stats.sess_cache_full); | |
0f113f3e MC |
1816 | case SSL_CTRL_MODE: |
1817 | return (ctx->mode |= larg); | |
1818 | case SSL_CTRL_CLEAR_MODE: | |
1819 | return (ctx->mode &= ~larg); | |
1820 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
1821 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
1822 | return 0; | |
1823 | ctx->max_send_fragment = larg; | |
d102d9df | 1824 | if (ctx->max_send_fragment < ctx->split_send_fragment) |
bfb155c1 | 1825 | ctx->split_send_fragment = ctx->max_send_fragment; |
0f113f3e | 1826 | return 1; |
d102d9df | 1827 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: |
6b99e875 | 1828 | if ((unsigned int)larg > ctx->max_send_fragment || larg == 0) |
d102d9df MC |
1829 | return 0; |
1830 | ctx->split_send_fragment = larg; | |
1831 | return 1; | |
1832 | case SSL_CTRL_SET_MAX_PIPELINES: | |
1833 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
1834 | return 0; | |
1835 | ctx->max_pipelines = larg; | |
07077415 | 1836 | return 1; |
0f113f3e MC |
1837 | case SSL_CTRL_CERT_FLAGS: |
1838 | return (ctx->cert->cert_flags |= larg); | |
1839 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
1840 | return (ctx->cert->cert_flags &= ~larg); | |
7946ab33 | 1841 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
4fa52141 VD |
1842 | return ssl_set_version_bound(ctx->method->version, (int)larg, |
1843 | &ctx->min_proto_version); | |
7946ab33 | 1844 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
4fa52141 VD |
1845 | return ssl_set_version_bound(ctx->method->version, (int)larg, |
1846 | &ctx->max_proto_version); | |
0f113f3e MC |
1847 | default: |
1848 | return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg)); | |
1849 | } | |
1850 | } | |
1851 | ||
1852 | long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
1853 | { | |
1854 | switch (cmd) { | |
1855 | case SSL_CTRL_SET_MSG_CALLBACK: | |
1856 | ctx->msg_callback = (void (*) | |
1857 | (int write_p, int version, int content_type, | |
1858 | const void *buf, size_t len, SSL *ssl, | |
1859 | void *arg))(fp); | |
1860 | return 1; | |
1861 | ||
1862 | default: | |
1863 | return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp)); | |
1864 | } | |
1865 | } | |
d3442bc7 | 1866 | |
ccd86b68 | 1867 | int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) |
0f113f3e | 1868 | { |
90d9e49a DSH |
1869 | if (a->id > b->id) |
1870 | return 1; | |
1871 | if (a->id < b->id) | |
1872 | return -1; | |
1873 | return 0; | |
0f113f3e MC |
1874 | } |
1875 | ||
1876 | int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, | |
1877 | const SSL_CIPHER *const *bp) | |
1878 | { | |
90d9e49a DSH |
1879 | if ((*ap)->id > (*bp)->id) |
1880 | return 1; | |
1881 | if ((*ap)->id < (*bp)->id) | |
1882 | return -1; | |
1883 | return 0; | |
0f113f3e | 1884 | } |
d02b48c6 | 1885 | |
4f43d0e7 | 1886 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 1887 | * preference */ |
0821bcd4 | 1888 | STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) |
0f113f3e MC |
1889 | { |
1890 | if (s != NULL) { | |
1891 | if (s->cipher_list != NULL) { | |
1892 | return (s->cipher_list); | |
1893 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { | |
1894 | return (s->ctx->cipher_list); | |
1895 | } | |
1896 | } | |
1897 | return (NULL); | |
1898 | } | |
1899 | ||
831eef2c NM |
1900 | STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s) |
1901 | { | |
1902 | if ((s == NULL) || (s->session == NULL) || !s->server) | |
1903 | return NULL; | |
1904 | return s->session->ciphers; | |
1905 | } | |
1906 | ||
8b8e5bed | 1907 | STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s) |
0f113f3e MC |
1908 | { |
1909 | STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers; | |
1910 | int i; | |
1911 | ciphers = SSL_get_ciphers(s); | |
1912 | if (!ciphers) | |
1913 | return NULL; | |
1914 | ssl_set_client_disabled(s); | |
1915 | for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { | |
1916 | const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i); | |
1917 | if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) { | |
1918 | if (!sk) | |
1919 | sk = sk_SSL_CIPHER_new_null(); | |
1920 | if (!sk) | |
1921 | return NULL; | |
1922 | if (!sk_SSL_CIPHER_push(sk, c)) { | |
1923 | sk_SSL_CIPHER_free(sk); | |
1924 | return NULL; | |
1925 | } | |
1926 | } | |
1927 | } | |
1928 | return sk; | |
1929 | } | |
8b8e5bed | 1930 | |
4f43d0e7 | 1931 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 1932 | * algorithm id */ |
f73e07cf | 1933 | STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) |
0f113f3e MC |
1934 | { |
1935 | if (s != NULL) { | |
1936 | if (s->cipher_list_by_id != NULL) { | |
1937 | return (s->cipher_list_by_id); | |
1938 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) { | |
1939 | return (s->ctx->cipher_list_by_id); | |
1940 | } | |
1941 | } | |
1942 | return (NULL); | |
1943 | } | |
d02b48c6 | 1944 | |
4f43d0e7 | 1945 | /** The old interface to get the same thing as SSL_get_ciphers() */ |
0f113f3e MC |
1946 | const char *SSL_get_cipher_list(const SSL *s, int n) |
1947 | { | |
4a640fb6 | 1948 | const SSL_CIPHER *c; |
0f113f3e MC |
1949 | STACK_OF(SSL_CIPHER) *sk; |
1950 | ||
1951 | if (s == NULL) | |
1952 | return (NULL); | |
1953 | sk = SSL_get_ciphers(s); | |
1954 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) | |
1955 | return (NULL); | |
1956 | c = sk_SSL_CIPHER_value(sk, n); | |
1957 | if (c == NULL) | |
1958 | return (NULL); | |
1959 | return (c->name); | |
1960 | } | |
d02b48c6 | 1961 | |
9d5ac953 KY |
1962 | /** return a STACK of the ciphers available for the SSL_CTX and in order of |
1963 | * preference */ | |
1964 | STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx) | |
1965 | { | |
1966 | if (ctx != NULL) | |
1967 | return ctx->cipher_list; | |
1968 | return NULL; | |
1969 | } | |
1970 | ||
25f923dd | 1971 | /** specify the ciphers to be used by default by the SSL_CTX */ |
018e57c7 | 1972 | int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) |
0f113f3e MC |
1973 | { |
1974 | STACK_OF(SSL_CIPHER) *sk; | |
1975 | ||
1976 | sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, | |
1977 | &ctx->cipher_list_by_id, str, ctx->cert); | |
1978 | /* | |
1979 | * ssl_create_cipher_list may return an empty stack if it was unable to | |
1980 | * find a cipher matching the given rule string (for example if the rule | |
1981 | * string specifies a cipher which has been disabled). This is not an | |
1982 | * error as far as ssl_create_cipher_list is concerned, and hence | |
1983 | * ctx->cipher_list and ctx->cipher_list_by_id has been updated. | |
1984 | */ | |
1985 | if (sk == NULL) | |
1986 | return 0; | |
1987 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
1988 | SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
1989 | return 0; | |
1990 | } | |
1991 | return 1; | |
1992 | } | |
d02b48c6 | 1993 | |
4f43d0e7 | 1994 | /** specify the ciphers to be used by the SSL */ |
0f113f3e MC |
1995 | int SSL_set_cipher_list(SSL *s, const char *str) |
1996 | { | |
1997 | STACK_OF(SSL_CIPHER) *sk; | |
1998 | ||
1999 | sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, | |
2000 | &s->cipher_list_by_id, str, s->cert); | |
2001 | /* see comment in SSL_CTX_set_cipher_list */ | |
2002 | if (sk == NULL) | |
2003 | return 0; | |
2004 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2005 | SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2006 | return 0; | |
2007 | } | |
2008 | return 1; | |
2009 | } | |
d02b48c6 | 2010 | |
0f113f3e MC |
2011 | char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len) |
2012 | { | |
2013 | char *p; | |
2014 | STACK_OF(SSL_CIPHER) *sk; | |
4a640fb6 | 2015 | const SSL_CIPHER *c; |
0f113f3e MC |
2016 | int i; |
2017 | ||
2018 | if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2)) | |
2019 | return (NULL); | |
2020 | ||
2021 | p = buf; | |
2022 | sk = s->session->ciphers; | |
2023 | ||
2024 | if (sk_SSL_CIPHER_num(sk) == 0) | |
2025 | return NULL; | |
2026 | ||
2027 | for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { | |
2028 | int n; | |
2029 | ||
2030 | c = sk_SSL_CIPHER_value(sk, i); | |
2031 | n = strlen(c->name); | |
2032 | if (n + 1 > len) { | |
2033 | if (p != buf) | |
2034 | --p; | |
2035 | *p = '\0'; | |
2036 | return buf; | |
2037 | } | |
a89c9a0d | 2038 | memcpy(p, c->name, n + 1); |
0f113f3e MC |
2039 | p += n; |
2040 | *(p++) = ':'; | |
2041 | len -= n + 1; | |
2042 | } | |
2043 | p[-1] = '\0'; | |
2044 | return (buf); | |
2045 | } | |
2046 | ||
52b8dad8 | 2047 | /** return a servername extension value if provided in Client Hello, or NULL. |
f1fd4544 | 2048 | * So far, only host_name types are defined (RFC 3546). |
ed3883d2 BM |
2049 | */ |
2050 | ||
f1fd4544 | 2051 | const char *SSL_get_servername(const SSL *s, const int type) |
0f113f3e MC |
2052 | { |
2053 | if (type != TLSEXT_NAMETYPE_host_name) | |
2054 | return NULL; | |
a13c20f6 | 2055 | |
0f113f3e MC |
2056 | return s->session && !s->tlsext_hostname ? |
2057 | s->session->tlsext_hostname : s->tlsext_hostname; | |
2058 | } | |
ed3883d2 | 2059 | |
f1fd4544 | 2060 | int SSL_get_servername_type(const SSL *s) |
0f113f3e MC |
2061 | { |
2062 | if (s->session | |
2063 | && (!s->tlsext_hostname ? s->session-> | |
2064 | tlsext_hostname : s->tlsext_hostname)) | |
2065 | return TLSEXT_NAMETYPE_host_name; | |
2066 | return -1; | |
2067 | } | |
ee2ffc27 | 2068 | |
0f113f3e MC |
2069 | /* |
2070 | * SSL_select_next_proto implements the standard protocol selection. It is | |
ee2ffc27 | 2071 | * expected that this function is called from the callback set by |
0f113f3e MC |
2072 | * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a |
2073 | * vector of 8-bit, length prefixed byte strings. The length byte itself is | |
2074 | * not included in the length. A byte string of length 0 is invalid. No byte | |
2075 | * string may be truncated. The current, but experimental algorithm for | |
2076 | * selecting the protocol is: 1) If the server doesn't support NPN then this | |
2077 | * is indicated to the callback. In this case, the client application has to | |
2078 | * abort the connection or have a default application level protocol. 2) If | |
2079 | * the server supports NPN, but advertises an empty list then the client | |
f430ba31 | 2080 | * selects the first protocol in its list, but indicates via the API that this |
0f113f3e MC |
2081 | * fallback case was enacted. 3) Otherwise, the client finds the first |
2082 | * protocol in the server's list that it supports and selects this protocol. | |
2083 | * This is because it's assumed that the server has better information about | |
2084 | * which protocol a client should use. 4) If the client doesn't support any | |
2085 | * of the server's advertised protocols, then this is treated the same as | |
2086 | * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was | |
2087 | * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. | |
ee2ffc27 | 2088 | */ |
0f113f3e MC |
2089 | int SSL_select_next_proto(unsigned char **out, unsigned char *outlen, |
2090 | const unsigned char *server, | |
2091 | unsigned int server_len, | |
2092 | const unsigned char *client, | |
2093 | unsigned int client_len) | |
2094 | { | |
2095 | unsigned int i, j; | |
2096 | const unsigned char *result; | |
2097 | int status = OPENSSL_NPN_UNSUPPORTED; | |
2098 | ||
2099 | /* | |
2100 | * For each protocol in server preference order, see if we support it. | |
2101 | */ | |
2102 | for (i = 0; i < server_len;) { | |
2103 | for (j = 0; j < client_len;) { | |
2104 | if (server[i] == client[j] && | |
2105 | memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) { | |
2106 | /* We found a match */ | |
2107 | result = &server[i]; | |
2108 | status = OPENSSL_NPN_NEGOTIATED; | |
2109 | goto found; | |
2110 | } | |
2111 | j += client[j]; | |
2112 | j++; | |
2113 | } | |
2114 | i += server[i]; | |
2115 | i++; | |
2116 | } | |
2117 | ||
2118 | /* There's no overlap between our protocols and the server's list. */ | |
2119 | result = client; | |
2120 | status = OPENSSL_NPN_NO_OVERLAP; | |
2121 | ||
2122 | found: | |
2123 | *out = (unsigned char *)result + 1; | |
2124 | *outlen = result[0]; | |
2125 | return status; | |
2126 | } | |
ee2ffc27 | 2127 | |
e481f9b9 | 2128 | #ifndef OPENSSL_NO_NEXTPROTONEG |
0f113f3e MC |
2129 | /* |
2130 | * SSL_get0_next_proto_negotiated sets *data and *len to point to the | |
2131 | * client's requested protocol for this connection and returns 0. If the | |
2132 | * client didn't request any protocol, then *data is set to NULL. Note that | |
2133 | * the client can request any protocol it chooses. The value returned from | |
2134 | * this function need not be a member of the list of supported protocols | |
ee2ffc27 BL |
2135 | * provided by the callback. |
2136 | */ | |
0f113f3e MC |
2137 | void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, |
2138 | unsigned *len) | |
2139 | { | |
2140 | *data = s->next_proto_negotiated; | |
2141 | if (!*data) { | |
2142 | *len = 0; | |
2143 | } else { | |
2144 | *len = s->next_proto_negotiated_len; | |
2145 | } | |
2146 | } | |
2147 | ||
2148 | /* | |
2149 | * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when | |
2150 | * a TLS server needs a list of supported protocols for Next Protocol | |
2151 | * Negotiation. The returned list must be in wire format. The list is | |
2152 | * returned by setting |out| to point to it and |outlen| to its length. This | |
2153 | * memory will not be modified, but one should assume that the SSL* keeps a | |
2154 | * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it | |
2155 | * wishes to advertise. Otherwise, no such extension will be included in the | |
2156 | * ServerHello. | |
2157 | */ | |
2158 | void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, | |
2159 | int (*cb) (SSL *ssl, | |
2160 | const unsigned char | |
2161 | **out, | |
2162 | unsigned int *outlen, | |
2163 | void *arg), void *arg) | |
2164 | { | |
2165 | ctx->next_protos_advertised_cb = cb; | |
2166 | ctx->next_protos_advertised_cb_arg = arg; | |
2167 | } | |
2168 | ||
2169 | /* | |
2170 | * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a | |
ee2ffc27 BL |
2171 | * client needs to select a protocol from the server's provided list. |out| |
2172 | * must be set to point to the selected protocol (which may be within |in|). | |
0f113f3e MC |
2173 | * The length of the protocol name must be written into |outlen|. The |
2174 | * server's advertised protocols are provided in |in| and |inlen|. The | |
2175 | * callback can assume that |in| is syntactically valid. The client must | |
2176 | * select a protocol. It is fatal to the connection if this callback returns | |
2177 | * a value other than SSL_TLSEXT_ERR_OK. | |
ee2ffc27 | 2178 | */ |
0f113f3e MC |
2179 | void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, |
2180 | int (*cb) (SSL *s, unsigned char **out, | |
2181 | unsigned char *outlen, | |
2182 | const unsigned char *in, | |
2183 | unsigned int inlen, | |
2184 | void *arg), void *arg) | |
2185 | { | |
2186 | ctx->next_proto_select_cb = cb; | |
2187 | ctx->next_proto_select_cb_arg = arg; | |
2188 | } | |
e481f9b9 | 2189 | #endif |
a398f821 | 2190 | |
0f113f3e MC |
2191 | /* |
2192 | * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|. | |
6f017a8f | 2193 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2194 | * length-prefixed strings). Returns 0 on success. |
2195 | */ | |
2196 | int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, | |
817cd0d5 | 2197 | unsigned int protos_len) |
0f113f3e | 2198 | { |
25aaa98a | 2199 | OPENSSL_free(ctx->alpn_client_proto_list); |
817cd0d5 | 2200 | ctx->alpn_client_proto_list = OPENSSL_memdup(protos, protos_len); |
72e9be3d RS |
2201 | if (ctx->alpn_client_proto_list == NULL) { |
2202 | SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); | |
0f113f3e | 2203 | return 1; |
72e9be3d | 2204 | } |
0f113f3e MC |
2205 | ctx->alpn_client_proto_list_len = protos_len; |
2206 | ||
2207 | return 0; | |
2208 | } | |
2209 | ||
2210 | /* | |
2211 | * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|. | |
6f017a8f | 2212 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2213 | * length-prefixed strings). Returns 0 on success. |
2214 | */ | |
2215 | int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, | |
817cd0d5 | 2216 | unsigned int protos_len) |
0f113f3e | 2217 | { |
25aaa98a | 2218 | OPENSSL_free(ssl->alpn_client_proto_list); |
817cd0d5 | 2219 | ssl->alpn_client_proto_list = OPENSSL_memdup(protos, protos_len); |
72e9be3d RS |
2220 | if (ssl->alpn_client_proto_list == NULL) { |
2221 | SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); | |
0f113f3e | 2222 | return 1; |
72e9be3d | 2223 | } |
0f113f3e MC |
2224 | ssl->alpn_client_proto_list_len = protos_len; |
2225 | ||
2226 | return 0; | |
2227 | } | |
2228 | ||
2229 | /* | |
2230 | * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is | |
2231 | * called during ClientHello processing in order to select an ALPN protocol | |
2232 | * from the client's list of offered protocols. | |
2233 | */ | |
2234 | void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx, | |
2235 | int (*cb) (SSL *ssl, | |
2236 | const unsigned char **out, | |
2237 | unsigned char *outlen, | |
2238 | const unsigned char *in, | |
2239 | unsigned int inlen, | |
2240 | void *arg), void *arg) | |
2241 | { | |
2242 | ctx->alpn_select_cb = cb; | |
2243 | ctx->alpn_select_cb_arg = arg; | |
2244 | } | |
2245 | ||
2246 | /* | |
2247 | * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from | |
2248 | * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name | |
2249 | * (not including the leading length-prefix byte). If the server didn't | |
2250 | * respond with a negotiated protocol then |*len| will be zero. | |
2251 | */ | |
6f017a8f | 2252 | void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, |
817cd0d5 | 2253 | unsigned int *len) |
0f113f3e MC |
2254 | { |
2255 | *data = NULL; | |
2256 | if (ssl->s3) | |
2257 | *data = ssl->s3->alpn_selected; | |
2258 | if (*data == NULL) | |
2259 | *len = 0; | |
2260 | else | |
2261 | *len = ssl->s3->alpn_selected_len; | |
2262 | } | |
2263 | ||
f1fd4544 | 2264 | |
74b4b494 | 2265 | int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, |
0f113f3e MC |
2266 | const char *label, size_t llen, |
2267 | const unsigned char *p, size_t plen, | |
2268 | int use_context) | |
2269 | { | |
2270 | if (s->version < TLS1_VERSION) | |
2271 | return -1; | |
e0af0405 | 2272 | |
0f113f3e MC |
2273 | return s->method->ssl3_enc->export_keying_material(s, out, olen, label, |
2274 | llen, p, plen, | |
2275 | use_context); | |
2276 | } | |
e0af0405 | 2277 | |
3c1d6bbc | 2278 | static unsigned long ssl_session_hash(const SSL_SESSION *a) |
0f113f3e MC |
2279 | { |
2280 | unsigned long l; | |
2281 | ||
2282 | l = (unsigned long) | |
2283 | ((unsigned int)a->session_id[0]) | | |
2284 | ((unsigned int)a->session_id[1] << 8L) | | |
2285 | ((unsigned long)a->session_id[2] << 16L) | | |
2286 | ((unsigned long)a->session_id[3] << 24L); | |
2287 | return (l); | |
2288 | } | |
2289 | ||
2290 | /* | |
2291 | * NB: If this function (or indeed the hash function which uses a sort of | |
dc644fe2 | 2292 | * coarser function than this one) is changed, ensure |
0f113f3e MC |
2293 | * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on |
2294 | * being able to construct an SSL_SESSION that will collide with any existing | |
2295 | * session with a matching session ID. | |
2296 | */ | |
2297 | static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) | |
2298 | { | |
2299 | if (a->ssl_version != b->ssl_version) | |
2300 | return (1); | |
2301 | if (a->session_id_length != b->session_id_length) | |
2302 | return (1); | |
2303 | return (memcmp(a->session_id, b->session_id, a->session_id_length)); | |
2304 | } | |
2305 | ||
2306 | /* | |
2307 | * These wrapper functions should remain rather than redeclaring | |
d0fa136c | 2308 | * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each |
0f113f3e MC |
2309 | * variable. The reason is that the functions aren't static, they're exposed |
2310 | * via ssl.h. | |
2311 | */ | |
97b17195 | 2312 | |
4ebb342f | 2313 | SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth) |
0f113f3e MC |
2314 | { |
2315 | SSL_CTX *ret = NULL; | |
2316 | ||
2317 | if (meth == NULL) { | |
2318 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED); | |
2319 | return (NULL); | |
2320 | } | |
2321 | ||
0fc32b07 MC |
2322 | if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL)) |
2323 | return NULL; | |
7fa792d1 | 2324 | |
0f113f3e | 2325 | if (FIPS_mode() && (meth->version < TLS1_VERSION)) { |
4fa52141 | 2326 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_AT_LEAST_TLS_1_0_NEEDED_IN_FIPS_MODE); |
0f113f3e MC |
2327 | return NULL; |
2328 | } | |
2329 | ||
2330 | if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { | |
2331 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); | |
2332 | goto err; | |
2333 | } | |
b51bce94 | 2334 | ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e MC |
2335 | if (ret == NULL) |
2336 | goto err; | |
2337 | ||
0f113f3e | 2338 | ret->method = meth; |
7946ab33 KR |
2339 | ret->min_proto_version = 0; |
2340 | ret->max_proto_version = 0; | |
0f113f3e MC |
2341 | ret->session_cache_mode = SSL_SESS_CACHE_SERVER; |
2342 | ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; | |
64b25758 | 2343 | /* We take the system default. */ |
0f113f3e | 2344 | ret->session_timeout = meth->get_timeout(); |
0f113f3e | 2345 | ret->references = 1; |
16203f7b AG |
2346 | ret->lock = CRYPTO_THREAD_lock_new(); |
2347 | if (ret->lock == NULL) { | |
2348 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2349 | OPENSSL_free(ret); | |
2350 | return NULL; | |
2351 | } | |
0f113f3e | 2352 | ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; |
0f113f3e | 2353 | ret->verify_mode = SSL_VERIFY_NONE; |
0f113f3e MC |
2354 | if ((ret->cert = ssl_cert_new()) == NULL) |
2355 | goto err; | |
2356 | ||
62d0577e | 2357 | ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp); |
0f113f3e MC |
2358 | if (ret->sessions == NULL) |
2359 | goto err; | |
2360 | ret->cert_store = X509_STORE_new(); | |
2361 | if (ret->cert_store == NULL) | |
2362 | goto err; | |
ed29e82a RP |
2363 | #ifndef OPENSSL_NO_CT |
2364 | ret->ctlog_store = CTLOG_STORE_new(); | |
2365 | if (ret->ctlog_store == NULL) | |
2366 | goto err; | |
2367 | #endif | |
61986d32 | 2368 | if (!ssl_create_cipher_list(ret->method, |
0f113f3e | 2369 | &ret->cipher_list, &ret->cipher_list_by_id, |
69f68237 MC |
2370 | SSL_DEFAULT_CIPHER_LIST, ret->cert) |
2371 | || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { | |
0f113f3e MC |
2372 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS); |
2373 | goto err2; | |
2374 | } | |
2375 | ||
2376 | ret->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 2377 | if (ret->param == NULL) |
0f113f3e MC |
2378 | goto err; |
2379 | ||
2380 | if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) { | |
2381 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); | |
2382 | goto err2; | |
2383 | } | |
2384 | if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) { | |
2385 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); | |
2386 | goto err2; | |
2387 | } | |
2388 | ||
2389 | if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL) | |
2390 | goto err; | |
2391 | ||
25a807bc F |
2392 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) |
2393 | goto err; | |
0f113f3e | 2394 | |
0f113f3e MC |
2395 | /* No compression for DTLS */ |
2396 | if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)) | |
2397 | ret->comp_methods = SSL_COMP_get_compression_methods(); | |
2398 | ||
2399 | ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; | |
d102d9df | 2400 | ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; |
566dda07 | 2401 | |
4e2e1ec9 TS |
2402 | /* Setup RFC5077 ticket keys */ |
2403 | if ((RAND_bytes(ret->tlsext_tick_key_name, sizeof(ret->tlsext_tick_key_name)) <= 0) | |
2404 | || (RAND_bytes(ret->tlsext_tick_hmac_key, sizeof(ret->tlsext_tick_hmac_key)) <= 0) | |
2405 | || (RAND_bytes(ret->tlsext_tick_aes_key, sizeof(ret->tlsext_tick_aes_key)) <= 0)) | |
0f113f3e | 2406 | ret->options |= SSL_OP_NO_TICKET; |
6434abbf | 2407 | |
edc032b5 | 2408 | #ifndef OPENSSL_NO_SRP |
61986d32 | 2409 | if (!SSL_CTX_SRP_CTX_init(ret)) |
69f68237 | 2410 | goto err; |
edc032b5 | 2411 | #endif |
4db9677b | 2412 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e MC |
2413 | # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO |
2414 | # define eng_strx(x) #x | |
2415 | # define eng_str(x) eng_strx(x) | |
2416 | /* Use specific client engine automatically... ignore errors */ | |
2417 | { | |
2418 | ENGINE *eng; | |
2419 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2420 | if (!eng) { | |
2421 | ERR_clear_error(); | |
2422 | ENGINE_load_builtin_engines(); | |
2423 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2424 | } | |
2425 | if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) | |
2426 | ERR_clear_error(); | |
2427 | } | |
2428 | # endif | |
2429 | #endif | |
2430 | /* | |
2431 | * Default is to connect to non-RI servers. When RI is more widely | |
2432 | * deployed might change this. | |
2433 | */ | |
2434 | ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; | |
dc5744cb EK |
2435 | /* |
2436 | * Disable compression by default to prevent CRIME. Applications can | |
2437 | * re-enable compression by configuring | |
2438 | * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION); | |
2439 | * or by using the SSL_CONF library. | |
2440 | */ | |
2441 | ret->options |= SSL_OP_NO_COMPRESSION; | |
0f113f3e | 2442 | |
ba261f71 | 2443 | ret->tlsext_status_type = -1; |
2444 | ||
16203f7b | 2445 | return ret; |
0f113f3e MC |
2446 | err: |
2447 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2448 | err2: | |
e0e920b1 | 2449 | SSL_CTX_free(ret); |
16203f7b | 2450 | return NULL; |
0f113f3e | 2451 | } |
d02b48c6 | 2452 | |
c5ebfcab | 2453 | int SSL_CTX_up_ref(SSL_CTX *ctx) |
a18a31e4 | 2454 | { |
16203f7b | 2455 | int i; |
c5ebfcab F |
2456 | |
2457 | if (CRYPTO_atomic_add(&ctx->references, 1, &i, ctx->lock) <= 0) | |
2458 | return 0; | |
2459 | ||
2460 | REF_PRINT_COUNT("SSL_CTX", ctx); | |
2461 | REF_ASSERT_ISNT(i < 2); | |
2462 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
2463 | } |
2464 | ||
4f43d0e7 | 2465 | void SSL_CTX_free(SSL_CTX *a) |
0f113f3e MC |
2466 | { |
2467 | int i; | |
d02b48c6 | 2468 | |
0f113f3e MC |
2469 | if (a == NULL) |
2470 | return; | |
d02b48c6 | 2471 | |
16203f7b | 2472 | CRYPTO_atomic_add(&a->references, -1, &i, a->lock); |
f3f1cf84 | 2473 | REF_PRINT_COUNT("SSL_CTX", a); |
0f113f3e MC |
2474 | if (i > 0) |
2475 | return; | |
f3f1cf84 | 2476 | REF_ASSERT_ISNT(i < 0); |
0f113f3e | 2477 | |
222561fe | 2478 | X509_VERIFY_PARAM_free(a->param); |
919ba009 | 2479 | dane_ctx_final(&a->dane); |
0f113f3e MC |
2480 | |
2481 | /* | |
2482 | * Free internal session cache. However: the remove_cb() may reference | |
2483 | * the ex_data of SSL_CTX, thus the ex_data store can only be removed | |
2484 | * after the sessions were flushed. | |
2485 | * As the ex_data handling routines might also touch the session cache, | |
2486 | * the most secure solution seems to be: empty (flush) the cache, then | |
2487 | * free ex_data, then finally free the cache. | |
2488 | * (See ticket [openssl.org #212].) | |
2489 | */ | |
2490 | if (a->sessions != NULL) | |
2491 | SSL_CTX_flush_sessions(a, 0); | |
2492 | ||
2493 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); | |
25aaa98a | 2494 | lh_SSL_SESSION_free(a->sessions); |
222561fe | 2495 | X509_STORE_free(a->cert_store); |
ed29e82a RP |
2496 | #ifndef OPENSSL_NO_CT |
2497 | CTLOG_STORE_free(a->ctlog_store); | |
2498 | #endif | |
25aaa98a RS |
2499 | sk_SSL_CIPHER_free(a->cipher_list); |
2500 | sk_SSL_CIPHER_free(a->cipher_list_by_id); | |
e0e920b1 | 2501 | ssl_cert_free(a->cert); |
222561fe RS |
2502 | sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free); |
2503 | sk_X509_pop_free(a->extra_certs, X509_free); | |
0f113f3e | 2504 | a->comp_methods = NULL; |
e783bae2 | 2505 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 2506 | sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); |
e783bae2 | 2507 | #endif |
edc032b5 | 2508 | #ifndef OPENSSL_NO_SRP |
0f113f3e | 2509 | SSL_CTX_SRP_CTX_free(a); |
edc032b5 | 2510 | #endif |
bdfe932d | 2511 | #ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 2512 | ENGINE_finish(a->client_cert_engine); |
ddac1974 | 2513 | #endif |
8671b898 | 2514 | |
e481f9b9 | 2515 | #ifndef OPENSSL_NO_EC |
25aaa98a RS |
2516 | OPENSSL_free(a->tlsext_ecpointformatlist); |
2517 | OPENSSL_free(a->tlsext_ellipticcurvelist); | |
8671b898 | 2518 | #endif |
e481f9b9 | 2519 | OPENSSL_free(a->alpn_client_proto_list); |
8671b898 | 2520 | |
16203f7b AG |
2521 | CRYPTO_THREAD_lock_free(a->lock); |
2522 | ||
0f113f3e MC |
2523 | OPENSSL_free(a); |
2524 | } | |
d02b48c6 | 2525 | |
3ae76679 | 2526 | void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) |
0f113f3e MC |
2527 | { |
2528 | ctx->default_passwd_callback = cb; | |
2529 | } | |
2530 | ||
2531 | void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) | |
2532 | { | |
2533 | ctx->default_passwd_callback_userdata = u; | |
2534 | } | |
2535 | ||
0c452abc CH |
2536 | pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) |
2537 | { | |
2538 | return ctx->default_passwd_callback; | |
2539 | } | |
2540 | ||
2541 | void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) | |
2542 | { | |
2543 | return ctx->default_passwd_callback_userdata; | |
2544 | } | |
2545 | ||
a974e64a MC |
2546 | void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb) |
2547 | { | |
2548 | s->default_passwd_callback = cb; | |
2549 | } | |
2550 | ||
2551 | void SSL_set_default_passwd_cb_userdata(SSL *s, void *u) | |
2552 | { | |
2553 | s->default_passwd_callback_userdata = u; | |
2554 | } | |
2555 | ||
0c452abc CH |
2556 | pem_password_cb *SSL_get_default_passwd_cb(SSL *s) |
2557 | { | |
2558 | return s->default_passwd_callback; | |
2559 | } | |
2560 | ||
2561 | void *SSL_get_default_passwd_cb_userdata(SSL *s) | |
2562 | { | |
2563 | return s->default_passwd_callback_userdata; | |
2564 | } | |
2565 | ||
0f113f3e MC |
2566 | void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, |
2567 | int (*cb) (X509_STORE_CTX *, void *), | |
2568 | void *arg) | |
2569 | { | |
2570 | ctx->app_verify_callback = cb; | |
2571 | ctx->app_verify_arg = arg; | |
2572 | } | |
2573 | ||
2574 | void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, | |
2575 | int (*cb) (int, X509_STORE_CTX *)) | |
2576 | { | |
2577 | ctx->verify_mode = mode; | |
2578 | ctx->default_verify_callback = cb; | |
2579 | } | |
2580 | ||
2581 | void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) | |
2582 | { | |
2583 | X509_VERIFY_PARAM_set_depth(ctx->param, depth); | |
2584 | } | |
2585 | ||
2586 | void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), | |
2587 | void *arg) | |
2588 | { | |
2589 | ssl_cert_set_cert_cb(c->cert, cb, arg); | |
2590 | } | |
2591 | ||
2592 | void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg) | |
2593 | { | |
2594 | ssl_cert_set_cert_cb(s->cert, cb, arg); | |
2595 | } | |
18d71588 | 2596 | |
2cf28d61 | 2597 | void ssl_set_masks(SSL *s) |
0f113f3e | 2598 | { |
60f43e9e | 2599 | #if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_GOST) |
0f113f3e | 2600 | CERT_PKEY *cpk; |
60f43e9e | 2601 | #endif |
6383d316 | 2602 | CERT *c = s->cert; |
f7d53487 | 2603 | uint32_t *pvalid = s->s3->tmp.valid_flags; |
bc71f910 | 2604 | int rsa_enc, rsa_sign, dh_tmp, dsa_sign; |
361a1191 | 2605 | unsigned long mask_k, mask_a; |
10bf4fc2 | 2606 | #ifndef OPENSSL_NO_EC |
361a1191 | 2607 | int have_ecc_cert, ecdsa_ok; |
0f113f3e | 2608 | X509 *x = NULL; |
14536c8c | 2609 | #endif |
0f113f3e MC |
2610 | if (c == NULL) |
2611 | return; | |
d02b48c6 | 2612 | |
bc36ee62 | 2613 | #ifndef OPENSSL_NO_DH |
0f113f3e | 2614 | dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto); |
d02b48c6 | 2615 | #else |
361a1191 | 2616 | dh_tmp = 0; |
d02b48c6 RE |
2617 | #endif |
2618 | ||
6383d316 | 2619 | rsa_enc = pvalid[SSL_PKEY_RSA_ENC] & CERT_PKEY_VALID; |
6383d316 | 2620 | rsa_sign = pvalid[SSL_PKEY_RSA_SIGN] & CERT_PKEY_SIGN; |
6383d316 | 2621 | dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_SIGN; |
14536c8c | 2622 | #ifndef OPENSSL_NO_EC |
6383d316 | 2623 | have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID; |
14536c8c | 2624 | #endif |
0f113f3e MC |
2625 | mask_k = 0; |
2626 | mask_a = 0; | |
0e1dba93 | 2627 | |
d02b48c6 | 2628 | #ifdef CIPHER_DEBUG |
b7557ccf AG |
2629 | fprintf(stderr, "dht=%d re=%d rs=%d ds=%d\n", |
2630 | dh_tmp, rsa_enc, rsa_sign, dsa_sign); | |
0f113f3e MC |
2631 | #endif |
2632 | ||
2a9b9654 | 2633 | #ifndef OPENSSL_NO_GOST |
e44380a9 DB |
2634 | cpk = &(c->pkeys[SSL_PKEY_GOST12_512]); |
2635 | if (cpk->x509 != NULL && cpk->privatekey != NULL) { | |
2636 | mask_k |= SSL_kGOST; | |
2637 | mask_a |= SSL_aGOST12; | |
2638 | } | |
2639 | cpk = &(c->pkeys[SSL_PKEY_GOST12_256]); | |
2640 | if (cpk->x509 != NULL && cpk->privatekey != NULL) { | |
2641 | mask_k |= SSL_kGOST; | |
2642 | mask_a |= SSL_aGOST12; | |
2643 | } | |
0f113f3e MC |
2644 | cpk = &(c->pkeys[SSL_PKEY_GOST01]); |
2645 | if (cpk->x509 != NULL && cpk->privatekey != NULL) { | |
2646 | mask_k |= SSL_kGOST; | |
2647 | mask_a |= SSL_aGOST01; | |
2648 | } | |
2a9b9654 | 2649 | #endif |
0f113f3e | 2650 | |
361a1191 | 2651 | if (rsa_enc) |
0f113f3e | 2652 | mask_k |= SSL_kRSA; |
d02b48c6 | 2653 | |
0f113f3e MC |
2654 | if (dh_tmp) |
2655 | mask_k |= SSL_kDHE; | |
d02b48c6 | 2656 | |
0f113f3e MC |
2657 | if (rsa_enc || rsa_sign) { |
2658 | mask_a |= SSL_aRSA; | |
0f113f3e | 2659 | } |
d02b48c6 | 2660 | |
0f113f3e MC |
2661 | if (dsa_sign) { |
2662 | mask_a |= SSL_aDSS; | |
0f113f3e | 2663 | } |
d02b48c6 | 2664 | |
0f113f3e | 2665 | mask_a |= SSL_aNULL; |
d02b48c6 | 2666 | |
0f113f3e MC |
2667 | /* |
2668 | * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites | |
2669 | * depending on the key usage extension. | |
2670 | */ | |
14536c8c | 2671 | #ifndef OPENSSL_NO_EC |
0f113f3e | 2672 | if (have_ecc_cert) { |
a8d8e06b | 2673 | uint32_t ex_kusage; |
0f113f3e MC |
2674 | cpk = &c->pkeys[SSL_PKEY_ECC]; |
2675 | x = cpk->x509; | |
a8d8e06b | 2676 | ex_kusage = X509_get_key_usage(x); |
a8d8e06b | 2677 | ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE; |
6383d316 | 2678 | if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN)) |
0f113f3e | 2679 | ecdsa_ok = 0; |
c7c46256 | 2680 | if (ecdsa_ok) |
0f113f3e | 2681 | mask_a |= SSL_aECDSA; |
0f113f3e | 2682 | } |
14536c8c | 2683 | #endif |
ea262260 | 2684 | |
10bf4fc2 | 2685 | #ifndef OPENSSL_NO_EC |
fe6ef247 | 2686 | mask_k |= SSL_kECDHE; |
ea262260 | 2687 | #endif |
ddac1974 NL |
2688 | |
2689 | #ifndef OPENSSL_NO_PSK | |
0f113f3e MC |
2690 | mask_k |= SSL_kPSK; |
2691 | mask_a |= SSL_aPSK; | |
526f94ad DSH |
2692 | if (mask_k & SSL_kRSA) |
2693 | mask_k |= SSL_kRSAPSK; | |
2694 | if (mask_k & SSL_kDHE) | |
2695 | mask_k |= SSL_kDHEPSK; | |
2696 | if (mask_k & SSL_kECDHE) | |
2697 | mask_k |= SSL_kECDHEPSK; | |
ddac1974 NL |
2698 | #endif |
2699 | ||
4d69f9e6 DSH |
2700 | s->s3->tmp.mask_k = mask_k; |
2701 | s->s3->tmp.mask_a = mask_a; | |
0f113f3e | 2702 | } |
d02b48c6 | 2703 | |
ef236ec3 DSH |
2704 | #ifndef OPENSSL_NO_EC |
2705 | ||
a2f9200f | 2706 | int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) |
0f113f3e | 2707 | { |
ce0c1f2b | 2708 | if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aECDSA) { |
0f113f3e | 2709 | /* key usage, if present, must allow signing */ |
ce0c1f2b | 2710 | if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) { |
0f113f3e MC |
2711 | SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, |
2712 | SSL_R_ECC_CERT_NOT_FOR_SIGNING); | |
2713 | return 0; | |
2714 | } | |
2715 | } | |
0f113f3e MC |
2716 | return 1; /* all checks are ok */ |
2717 | } | |
ea262260 | 2718 | |
ef236ec3 DSH |
2719 | #endif |
2720 | ||
2daceb03 | 2721 | static int ssl_get_server_cert_index(const SSL *s) |
0f113f3e MC |
2722 | { |
2723 | int idx; | |
2724 | idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher); | |
2725 | if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509) | |
2726 | idx = SSL_PKEY_RSA_SIGN; | |
e44380a9 DB |
2727 | if (idx == SSL_PKEY_GOST_EC) { |
2728 | if (s->cert->pkeys[SSL_PKEY_GOST12_512].x509) | |
2729 | idx = SSL_PKEY_GOST12_512; | |
2730 | else if (s->cert->pkeys[SSL_PKEY_GOST12_256].x509) | |
2731 | idx = SSL_PKEY_GOST12_256; | |
2732 | else if (s->cert->pkeys[SSL_PKEY_GOST01].x509) | |
2733 | idx = SSL_PKEY_GOST01; | |
2734 | else | |
2735 | idx = -1; | |
2736 | } | |
0f113f3e MC |
2737 | if (idx == -1) |
2738 | SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR); | |
2739 | return idx; | |
2740 | } | |
a9e1c50b | 2741 | |
6383d316 | 2742 | CERT_PKEY *ssl_get_server_send_pkey(SSL *s) |
0f113f3e MC |
2743 | { |
2744 | CERT *c; | |
2745 | int i; | |
ea262260 | 2746 | |
0f113f3e MC |
2747 | c = s->cert; |
2748 | if (!s->s3 || !s->s3->tmp.new_cipher) | |
2749 | return NULL; | |
2cf28d61 | 2750 | ssl_set_masks(s); |
a9e1c50b | 2751 | |
0f113f3e | 2752 | i = ssl_get_server_cert_index(s); |
a9e1c50b | 2753 | |
0f113f3e MC |
2754 | /* This may or may not be an error. */ |
2755 | if (i < 0) | |
2756 | return NULL; | |
a9e1c50b | 2757 | |
0f113f3e MC |
2758 | /* May be NULL. */ |
2759 | return &c->pkeys[i]; | |
2760 | } | |
d02b48c6 | 2761 | |
0f113f3e MC |
2762 | EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, |
2763 | const EVP_MD **pmd) | |
2764 | { | |
2765 | unsigned long alg_a; | |
2766 | CERT *c; | |
2767 | int idx = -1; | |
d02b48c6 | 2768 | |
0f113f3e MC |
2769 | alg_a = cipher->algorithm_auth; |
2770 | c = s->cert; | |
d02b48c6 | 2771 | |
0f113f3e MC |
2772 | if ((alg_a & SSL_aDSS) && |
2773 | (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) | |
2774 | idx = SSL_PKEY_DSA_SIGN; | |
2775 | else if (alg_a & SSL_aRSA) { | |
2776 | if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) | |
2777 | idx = SSL_PKEY_RSA_SIGN; | |
2778 | else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) | |
2779 | idx = SSL_PKEY_RSA_ENC; | |
2780 | } else if ((alg_a & SSL_aECDSA) && | |
2781 | (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) | |
2782 | idx = SSL_PKEY_ECC; | |
2783 | if (idx == -1) { | |
2784 | SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR); | |
2785 | return (NULL); | |
2786 | } | |
2787 | if (pmd) | |
d376e57d | 2788 | *pmd = s->s3->tmp.md[idx]; |
0f113f3e MC |
2789 | return c->pkeys[idx].privatekey; |
2790 | } | |
d02b48c6 | 2791 | |
a398f821 | 2792 | int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, |
0f113f3e MC |
2793 | size_t *serverinfo_length) |
2794 | { | |
2795 | CERT *c = NULL; | |
2796 | int i = 0; | |
2797 | *serverinfo_length = 0; | |
2798 | ||
2799 | c = s->cert; | |
2800 | i = ssl_get_server_cert_index(s); | |
2801 | ||
2802 | if (i == -1) | |
2803 | return 0; | |
2804 | if (c->pkeys[i].serverinfo == NULL) | |
2805 | return 0; | |
2806 | ||
2807 | *serverinfo = c->pkeys[i].serverinfo; | |
2808 | *serverinfo_length = c->pkeys[i].serverinfo_length; | |
2809 | return 1; | |
2810 | } | |
0f113f3e MC |
2811 | |
2812 | void ssl_update_cache(SSL *s, int mode) | |
2813 | { | |
2814 | int i; | |
2815 | ||
2816 | /* | |
2817 | * If the session_id_length is 0, we are not supposed to cache it, and it | |
2818 | * would be rather hard to do anyway :-) | |
2819 | */ | |
2820 | if (s->session->session_id_length == 0) | |
2821 | return; | |
2822 | ||
2823 | i = s->session_ctx->session_cache_mode; | |
2824 | if ((i & mode) && (!s->hit) | |
2825 | && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) | |
2826 | || SSL_CTX_add_session(s->session_ctx, s->session)) | |
2827 | && (s->session_ctx->new_session_cb != NULL)) { | |
16203f7b | 2828 | SSL_SESSION_up_ref(s->session); |
0f113f3e MC |
2829 | if (!s->session_ctx->new_session_cb(s, s->session)) |
2830 | SSL_SESSION_free(s->session); | |
2831 | } | |
2832 | ||
2833 | /* auto flush every 255 connections */ | |
2834 | if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) { | |
2835 | if ((((mode & SSL_SESS_CACHE_CLIENT) | |
2836 | ? s->session_ctx->stats.sess_connect_good | |
2837 | : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) { | |
2838 | SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL)); | |
2839 | } | |
2840 | } | |
2841 | } | |
d02b48c6 | 2842 | |
ba168244 | 2843 | const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx) |
0f113f3e MC |
2844 | { |
2845 | return ctx->method; | |
2846 | } | |
ba168244 | 2847 | |
4ebb342f | 2848 | const SSL_METHOD *SSL_get_ssl_method(SSL *s) |
0f113f3e MC |
2849 | { |
2850 | return (s->method); | |
2851 | } | |
d02b48c6 | 2852 | |
4ebb342f | 2853 | int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) |
0f113f3e | 2854 | { |
0f113f3e MC |
2855 | int ret = 1; |
2856 | ||
2857 | if (s->method != meth) { | |
919ba009 VD |
2858 | const SSL_METHOD *sm = s->method; |
2859 | int (*hf)(SSL *) = s->handshake_func; | |
0f113f3e | 2860 | |
919ba009 | 2861 | if (sm->version == meth->version) |
0f113f3e MC |
2862 | s->method = meth; |
2863 | else { | |
919ba009 | 2864 | sm->ssl_free(s); |
0f113f3e MC |
2865 | s->method = meth; |
2866 | ret = s->method->ssl_new(s); | |
2867 | } | |
2868 | ||
919ba009 | 2869 | if (hf == sm->ssl_connect) |
0f113f3e | 2870 | s->handshake_func = meth->ssl_connect; |
919ba009 | 2871 | else if (hf == sm->ssl_accept) |
0f113f3e MC |
2872 | s->handshake_func = meth->ssl_accept; |
2873 | } | |
2874 | return (ret); | |
2875 | } | |
2876 | ||
2877 | int SSL_get_error(const SSL *s, int i) | |
2878 | { | |
2879 | int reason; | |
2880 | unsigned long l; | |
2881 | BIO *bio; | |
2882 | ||
2883 | if (i > 0) | |
2884 | return (SSL_ERROR_NONE); | |
2885 | ||
2886 | /* | |
2887 | * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc, | |
2888 | * where we do encode the error | |
2889 | */ | |
2890 | if ((l = ERR_peek_error()) != 0) { | |
2891 | if (ERR_GET_LIB(l) == ERR_LIB_SYS) | |
2892 | return (SSL_ERROR_SYSCALL); | |
2893 | else | |
2894 | return (SSL_ERROR_SSL); | |
2895 | } | |
2896 | ||
fc7f190c MC |
2897 | if (i < 0) { |
2898 | if (SSL_want_read(s)) { | |
2899 | bio = SSL_get_rbio(s); | |
2900 | if (BIO_should_read(bio)) | |
2901 | return (SSL_ERROR_WANT_READ); | |
2902 | else if (BIO_should_write(bio)) | |
2903 | /* | |
2904 | * This one doesn't make too much sense ... We never try to write | |
2905 | * to the rbio, and an application program where rbio and wbio | |
2906 | * are separate couldn't even know what it should wait for. | |
2907 | * However if we ever set s->rwstate incorrectly (so that we have | |
2908 | * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and | |
2909 | * wbio *are* the same, this test works around that bug; so it | |
2910 | * might be safer to keep it. | |
2911 | */ | |
2912 | return (SSL_ERROR_WANT_WRITE); | |
2913 | else if (BIO_should_io_special(bio)) { | |
2914 | reason = BIO_get_retry_reason(bio); | |
2915 | if (reason == BIO_RR_CONNECT) | |
2916 | return (SSL_ERROR_WANT_CONNECT); | |
2917 | else if (reason == BIO_RR_ACCEPT) | |
2918 | return (SSL_ERROR_WANT_ACCEPT); | |
2919 | else | |
2920 | return (SSL_ERROR_SYSCALL); /* unknown */ | |
2921 | } | |
0f113f3e | 2922 | } |
0f113f3e | 2923 | |
fc7f190c | 2924 | if (SSL_want_write(s)) { |
2e7dc7cd MC |
2925 | /* |
2926 | * Access wbio directly - in order to use the buffered bio if | |
2927 | * present | |
2928 | */ | |
2929 | bio = s->wbio; | |
fc7f190c MC |
2930 | if (BIO_should_write(bio)) |
2931 | return (SSL_ERROR_WANT_WRITE); | |
2932 | else if (BIO_should_read(bio)) | |
2933 | /* | |
2934 | * See above (SSL_want_read(s) with BIO_should_write(bio)) | |
2935 | */ | |
2936 | return (SSL_ERROR_WANT_READ); | |
2937 | else if (BIO_should_io_special(bio)) { | |
2938 | reason = BIO_get_retry_reason(bio); | |
2939 | if (reason == BIO_RR_CONNECT) | |
2940 | return (SSL_ERROR_WANT_CONNECT); | |
2941 | else if (reason == BIO_RR_ACCEPT) | |
2942 | return (SSL_ERROR_WANT_ACCEPT); | |
2943 | else | |
2944 | return (SSL_ERROR_SYSCALL); | |
2945 | } | |
2946 | } | |
2947 | if (SSL_want_x509_lookup(s)) { | |
2948 | return (SSL_ERROR_WANT_X509_LOOKUP); | |
2949 | } | |
2950 | if (SSL_want_async(s)) { | |
2951 | return SSL_ERROR_WANT_ASYNC; | |
2952 | } | |
2953 | if (SSL_want_async_job(s)) { | |
2954 | return SSL_ERROR_WANT_ASYNC_JOB; | |
0f113f3e | 2955 | } |
07bbc92c | 2956 | } |
0f113f3e MC |
2957 | |
2958 | if (i == 0) { | |
2959 | if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && | |
2960 | (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) | |
2961 | return (SSL_ERROR_ZERO_RETURN); | |
2962 | } | |
2963 | return (SSL_ERROR_SYSCALL); | |
2964 | } | |
d02b48c6 | 2965 | |
add2f5ca MC |
2966 | static int ssl_do_handshake_intern(void *vargs) |
2967 | { | |
2968 | struct ssl_async_args *args; | |
2969 | SSL *s; | |
2970 | ||
2971 | args = (struct ssl_async_args *)vargs; | |
2972 | s = args->s; | |
2973 | ||
2974 | return s->handshake_func(s); | |
2975 | } | |
2976 | ||
4f43d0e7 | 2977 | int SSL_do_handshake(SSL *s) |
0f113f3e MC |
2978 | { |
2979 | int ret = 1; | |
2980 | ||
2981 | if (s->handshake_func == NULL) { | |
2982 | SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET); | |
add2f5ca | 2983 | return -1; |
0f113f3e MC |
2984 | } |
2985 | ||
2986 | s->method->ssl_renegotiate_check(s); | |
2987 | ||
2988 | if (SSL_in_init(s) || SSL_in_before(s)) { | |
e8aa8b6c | 2989 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca MC |
2990 | struct ssl_async_args args; |
2991 | ||
2992 | args.s = s; | |
2993 | ||
7fecbf6f | 2994 | ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern); |
add2f5ca MC |
2995 | } else { |
2996 | ret = s->handshake_func(s); | |
2997 | } | |
0f113f3e | 2998 | } |
add2f5ca | 2999 | return ret; |
0f113f3e MC |
3000 | } |
3001 | ||
4f43d0e7 | 3002 | void SSL_set_accept_state(SSL *s) |
0f113f3e MC |
3003 | { |
3004 | s->server = 1; | |
3005 | s->shutdown = 0; | |
fe3a3291 | 3006 | ossl_statem_clear(s); |
0f113f3e | 3007 | s->handshake_func = s->method->ssl_accept; |
d31fb0b5 | 3008 | clear_ciphers(s); |
0f113f3e | 3009 | } |
d02b48c6 | 3010 | |
4f43d0e7 | 3011 | void SSL_set_connect_state(SSL *s) |
0f113f3e MC |
3012 | { |
3013 | s->server = 0; | |
3014 | s->shutdown = 0; | |
fe3a3291 | 3015 | ossl_statem_clear(s); |
0f113f3e | 3016 | s->handshake_func = s->method->ssl_connect; |
d31fb0b5 | 3017 | clear_ciphers(s); |
0f113f3e | 3018 | } |
d02b48c6 | 3019 | |
4f43d0e7 | 3020 | int ssl_undefined_function(SSL *s) |
0f113f3e MC |
3021 | { |
3022 | SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3023 | return (0); | |
3024 | } | |
d02b48c6 | 3025 | |
41a15c4f | 3026 | int ssl_undefined_void_function(void) |
0f113f3e MC |
3027 | { |
3028 | SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION, | |
3029 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3030 | return (0); | |
3031 | } | |
41a15c4f | 3032 | |
0821bcd4 | 3033 | int ssl_undefined_const_function(const SSL *s) |
0f113f3e | 3034 | { |
0f113f3e MC |
3035 | return (0); |
3036 | } | |
0821bcd4 | 3037 | |
2b8fa1d5 | 3038 | const SSL_METHOD *ssl_bad_method(int ver) |
0f113f3e MC |
3039 | { |
3040 | SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3041 | return (NULL); | |
3042 | } | |
d02b48c6 | 3043 | |
3eb2aff4 | 3044 | const char *ssl_protocol_to_string(int version) |
7d650072 KR |
3045 | { |
3046 | if (version == TLS1_2_VERSION) | |
3047 | return "TLSv1.2"; | |
3048 | else if (version == TLS1_1_VERSION) | |
3049 | return "TLSv1.1"; | |
3050 | else if (version == TLS1_VERSION) | |
ee3a6c64 | 3051 | return "TLSv1"; |
7d650072 KR |
3052 | else if (version == SSL3_VERSION) |
3053 | return "SSLv3"; | |
3054 | else if (version == DTLS1_BAD_VER) | |
3055 | return "DTLSv0.9"; | |
3056 | else if (version == DTLS1_VERSION) | |
3057 | return "DTLSv1"; | |
3058 | else if (version == DTLS1_2_VERSION) | |
3059 | return "DTLSv1.2"; | |
0f113f3e MC |
3060 | else |
3061 | return ("unknown"); | |
3062 | } | |
d02b48c6 | 3063 | |
7d650072 KR |
3064 | const char *SSL_get_version(const SSL *s) |
3065 | { | |
3eb2aff4 | 3066 | return ssl_protocol_to_string(s->version); |
7d650072 KR |
3067 | } |
3068 | ||
4f43d0e7 | 3069 | SSL *SSL_dup(SSL *s) |
0f113f3e MC |
3070 | { |
3071 | STACK_OF(X509_NAME) *sk; | |
3072 | X509_NAME *xn; | |
3073 | SSL *ret; | |
3074 | int i; | |
3075 | ||
919ba009 VD |
3076 | /* If we're not quiescent, just up_ref! */ |
3077 | if (!SSL_in_init(s) || !SSL_in_before(s)) { | |
16203f7b | 3078 | CRYPTO_atomic_add(&s->references, 1, &i, s->lock); |
919ba009 VD |
3079 | return s; |
3080 | } | |
3081 | ||
3082 | /* | |
3083 | * Otherwise, copy configuration state, and session if set. | |
3084 | */ | |
0f113f3e MC |
3085 | if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) |
3086 | return (NULL); | |
3087 | ||
0f113f3e | 3088 | if (s->session != NULL) { |
919ba009 VD |
3089 | /* |
3090 | * Arranges to share the same session via up_ref. This "copies" | |
3091 | * session-id, SSL_METHOD, sid_ctx, and 'cert' | |
3092 | */ | |
61986d32 | 3093 | if (!SSL_copy_session_id(ret, s)) |
17dd65e6 | 3094 | goto err; |
0f113f3e MC |
3095 | } else { |
3096 | /* | |
3097 | * No session has been established yet, so we have to expect that | |
3098 | * s->cert or ret->cert will be changed later -- they should not both | |
3099 | * point to the same object, and thus we can't use | |
3100 | * SSL_copy_session_id. | |
3101 | */ | |
919ba009 VD |
3102 | if (!SSL_set_ssl_method(ret, s->method)) |
3103 | goto err; | |
0f113f3e MC |
3104 | |
3105 | if (s->cert != NULL) { | |
e0e920b1 | 3106 | ssl_cert_free(ret->cert); |
0f113f3e MC |
3107 | ret->cert = ssl_cert_dup(s->cert); |
3108 | if (ret->cert == NULL) | |
3109 | goto err; | |
3110 | } | |
3111 | ||
61986d32 | 3112 | if (!SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length)) |
69f68237 | 3113 | goto err; |
0f113f3e MC |
3114 | } |
3115 | ||
9f6b22b8 VD |
3116 | if (!ssl_dane_dup(ret, s)) |
3117 | goto err; | |
919ba009 | 3118 | ret->version = s->version; |
0f113f3e MC |
3119 | ret->options = s->options; |
3120 | ret->mode = s->mode; | |
3121 | SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); | |
3122 | SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); | |
3123 | ret->msg_callback = s->msg_callback; | |
3124 | ret->msg_callback_arg = s->msg_callback_arg; | |
3125 | SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s)); | |
3126 | SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); | |
3127 | ret->generate_session_id = s->generate_session_id; | |
3128 | ||
3129 | SSL_set_info_callback(ret, SSL_get_info_callback(s)); | |
3130 | ||
0f113f3e MC |
3131 | /* copy app data, a little dangerous perhaps */ |
3132 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) | |
3133 | goto err; | |
3134 | ||
3135 | /* setup rbio, and wbio */ | |
3136 | if (s->rbio != NULL) { | |
3137 | if (!BIO_dup_state(s->rbio, (char *)&ret->rbio)) | |
3138 | goto err; | |
3139 | } | |
3140 | if (s->wbio != NULL) { | |
3141 | if (s->wbio != s->rbio) { | |
3142 | if (!BIO_dup_state(s->wbio, (char *)&ret->wbio)) | |
3143 | goto err; | |
3144 | } else | |
3145 | ret->wbio = ret->rbio; | |
3146 | } | |
919ba009 | 3147 | |
0f113f3e | 3148 | ret->server = s->server; |
919ba009 VD |
3149 | if (s->handshake_func) { |
3150 | if (s->server) | |
3151 | SSL_set_accept_state(ret); | |
3152 | else | |
3153 | SSL_set_connect_state(ret); | |
3154 | } | |
0f113f3e | 3155 | ret->shutdown = s->shutdown; |
0f113f3e MC |
3156 | ret->hit = s->hit; |
3157 | ||
a974e64a MC |
3158 | ret->default_passwd_callback = s->default_passwd_callback; |
3159 | ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata; | |
3160 | ||
0f113f3e MC |
3161 | X509_VERIFY_PARAM_inherit(ret->param, s->param); |
3162 | ||
3163 | /* dup the cipher_list and cipher_list_by_id stacks */ | |
3164 | if (s->cipher_list != NULL) { | |
3165 | if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) | |
3166 | goto err; | |
3167 | } | |
3168 | if (s->cipher_list_by_id != NULL) | |
3169 | if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id)) | |
3170 | == NULL) | |
3171 | goto err; | |
3172 | ||
3173 | /* Dup the client_CA list */ | |
3174 | if (s->client_CA != NULL) { | |
3175 | if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL) | |
3176 | goto err; | |
3177 | ret->client_CA = sk; | |
3178 | for (i = 0; i < sk_X509_NAME_num(sk); i++) { | |
3179 | xn = sk_X509_NAME_value(sk, i); | |
3180 | if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) { | |
3181 | X509_NAME_free(xn); | |
3182 | goto err; | |
3183 | } | |
3184 | } | |
3185 | } | |
66696478 | 3186 | return ret; |
0f113f3e | 3187 | |
0f113f3e | 3188 | err: |
66696478 RS |
3189 | SSL_free(ret); |
3190 | return NULL; | |
0f113f3e | 3191 | } |
d02b48c6 | 3192 | |
4f43d0e7 | 3193 | void ssl_clear_cipher_ctx(SSL *s) |
0f113f3e MC |
3194 | { |
3195 | if (s->enc_read_ctx != NULL) { | |
846ec07d | 3196 | EVP_CIPHER_CTX_free(s->enc_read_ctx); |
0f113f3e MC |
3197 | s->enc_read_ctx = NULL; |
3198 | } | |
3199 | if (s->enc_write_ctx != NULL) { | |
846ec07d | 3200 | EVP_CIPHER_CTX_free(s->enc_write_ctx); |
0f113f3e MC |
3201 | s->enc_write_ctx = NULL; |
3202 | } | |
09b6c2ef | 3203 | #ifndef OPENSSL_NO_COMP |
efa7dd64 RS |
3204 | COMP_CTX_free(s->expand); |
3205 | s->expand = NULL; | |
3206 | COMP_CTX_free(s->compress); | |
3207 | s->compress = NULL; | |
0f113f3e MC |
3208 | #endif |
3209 | } | |
d02b48c6 | 3210 | |
0821bcd4 | 3211 | X509 *SSL_get_certificate(const SSL *s) |
0f113f3e MC |
3212 | { |
3213 | if (s->cert != NULL) | |
3214 | return (s->cert->key->x509); | |
3215 | else | |
3216 | return (NULL); | |
3217 | } | |
d02b48c6 | 3218 | |
a25f9adc | 3219 | EVP_PKEY *SSL_get_privatekey(const SSL *s) |
0f113f3e MC |
3220 | { |
3221 | if (s->cert != NULL) | |
3222 | return (s->cert->key->privatekey); | |
3223 | else | |
3224 | return (NULL); | |
3225 | } | |
d02b48c6 | 3226 | |
a25f9adc | 3227 | X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx) |
0f113f3e MC |
3228 | { |
3229 | if (ctx->cert != NULL) | |
3230 | return ctx->cert->key->x509; | |
3231 | else | |
3232 | return NULL; | |
3233 | } | |
a25f9adc DSH |
3234 | |
3235 | EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx) | |
0f113f3e MC |
3236 | { |
3237 | if (ctx->cert != NULL) | |
3238 | return ctx->cert->key->privatekey; | |
3239 | else | |
3240 | return NULL; | |
3241 | } | |
a25f9adc | 3242 | |
babb3798 | 3243 | const SSL_CIPHER *SSL_get_current_cipher(const SSL *s) |
0f113f3e MC |
3244 | { |
3245 | if ((s->session != NULL) && (s->session->cipher != NULL)) | |
3246 | return (s->session->cipher); | |
3247 | return (NULL); | |
3248 | } | |
3249 | ||
377dcdba | 3250 | const COMP_METHOD *SSL_get_current_compression(SSL *s) |
0f113f3e | 3251 | { |
9a555706 RS |
3252 | #ifndef OPENSSL_NO_COMP |
3253 | return s->compress ? COMP_CTX_get_method(s->compress) : NULL; | |
3254 | #else | |
3255 | return NULL; | |
3256 | #endif | |
0f113f3e | 3257 | } |
377dcdba RL |
3258 | |
3259 | const COMP_METHOD *SSL_get_current_expansion(SSL *s) | |
0f113f3e | 3260 | { |
9a555706 RS |
3261 | #ifndef OPENSSL_NO_COMP |
3262 | return s->expand ? COMP_CTX_get_method(s->expand) : NULL; | |
3263 | #else | |
3264 | return NULL; | |
0f113f3e | 3265 | #endif |
9a555706 | 3266 | } |
0f113f3e | 3267 | |
46417569 | 3268 | int ssl_init_wbio_buffer(SSL *s) |
0f113f3e MC |
3269 | { |
3270 | BIO *bbio; | |
3271 | ||
2e7dc7cd MC |
3272 | if (s->bbio != NULL) { |
3273 | /* Already buffered. */ | |
3274 | return 1; | |
0f113f3e | 3275 | } |
46417569 | 3276 | |
2e7dc7cd MC |
3277 | bbio = BIO_new(BIO_f_buffer()); |
3278 | if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) { | |
3279 | BIO_free(bbio); | |
0f113f3e | 3280 | SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB); |
46417569 | 3281 | return 0; |
0f113f3e | 3282 | } |
2e7dc7cd MC |
3283 | s->bbio = bbio; |
3284 | s->wbio = BIO_push(bbio, s->wbio); | |
46417569 MC |
3285 | |
3286 | return 1; | |
0f113f3e | 3287 | } |
413c4f45 | 3288 | |
4f43d0e7 | 3289 | void ssl_free_wbio_buffer(SSL *s) |
0f113f3e | 3290 | { |
62adbcee | 3291 | /* callers ensure s is never null */ |
0f113f3e MC |
3292 | if (s->bbio == NULL) |
3293 | return; | |
3294 | ||
2e7dc7cd MC |
3295 | s->wbio = BIO_pop(s->wbio); |
3296 | assert(s->wbio != NULL); | |
0f113f3e MC |
3297 | BIO_free(s->bbio); |
3298 | s->bbio = NULL; | |
3299 | } | |
3300 | ||
3301 | void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) | |
3302 | { | |
3303 | ctx->quiet_shutdown = mode; | |
3304 | } | |
58964a49 | 3305 | |
0821bcd4 | 3306 | int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) |
0f113f3e MC |
3307 | { |
3308 | return (ctx->quiet_shutdown); | |
3309 | } | |
58964a49 | 3310 | |
0f113f3e MC |
3311 | void SSL_set_quiet_shutdown(SSL *s, int mode) |
3312 | { | |
3313 | s->quiet_shutdown = mode; | |
3314 | } | |
58964a49 | 3315 | |
0821bcd4 | 3316 | int SSL_get_quiet_shutdown(const SSL *s) |
0f113f3e MC |
3317 | { |
3318 | return (s->quiet_shutdown); | |
3319 | } | |
58964a49 | 3320 | |
0f113f3e MC |
3321 | void SSL_set_shutdown(SSL *s, int mode) |
3322 | { | |
3323 | s->shutdown = mode; | |
3324 | } | |
58964a49 | 3325 | |
0821bcd4 | 3326 | int SSL_get_shutdown(const SSL *s) |
0f113f3e | 3327 | { |
6546e9b2 | 3328 | return s->shutdown; |
0f113f3e | 3329 | } |
58964a49 | 3330 | |
0821bcd4 | 3331 | int SSL_version(const SSL *s) |
0f113f3e | 3332 | { |
6546e9b2 AG |
3333 | return s->version; |
3334 | } | |
3335 | ||
3336 | int SSL_client_version(const SSL *s) | |
3337 | { | |
3338 | return s->client_version; | |
0f113f3e | 3339 | } |
58964a49 | 3340 | |
0821bcd4 | 3341 | SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) |
0f113f3e | 3342 | { |
6546e9b2 | 3343 | return ssl->ctx; |
0f113f3e MC |
3344 | } |
3345 | ||
3346 | SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx) | |
3347 | { | |
24a0d393 | 3348 | CERT *new_cert; |
0f113f3e MC |
3349 | if (ssl->ctx == ctx) |
3350 | return ssl->ctx; | |
0f113f3e MC |
3351 | if (ctx == NULL) |
3352 | ctx = ssl->initial_ctx; | |
24a0d393 KR |
3353 | new_cert = ssl_cert_dup(ctx->cert); |
3354 | if (new_cert == NULL) { | |
3355 | return NULL; | |
0f113f3e | 3356 | } |
24a0d393 KR |
3357 | ssl_cert_free(ssl->cert); |
3358 | ssl->cert = new_cert; | |
0f113f3e MC |
3359 | |
3360 | /* | |
3361 | * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH), | |
3362 | * so setter APIs must prevent invalid lengths from entering the system. | |
3363 | */ | |
3364 | OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx)); | |
3365 | ||
3366 | /* | |
3367 | * If the session ID context matches that of the parent SSL_CTX, | |
3368 | * inherit it from the new SSL_CTX as well. If however the context does | |
3369 | * not match (i.e., it was set per-ssl with SSL_set_session_id_context), | |
3370 | * leave it unchanged. | |
3371 | */ | |
3372 | if ((ssl->ctx != NULL) && | |
3373 | (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) && | |
3374 | (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) { | |
3375 | ssl->sid_ctx_length = ctx->sid_ctx_length; | |
3376 | memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx)); | |
3377 | } | |
3378 | ||
16203f7b | 3379 | SSL_CTX_up_ref(ctx); |
e0e920b1 | 3380 | SSL_CTX_free(ssl->ctx); /* decrement reference count */ |
0f113f3e MC |
3381 | ssl->ctx = ctx; |
3382 | ||
16203f7b | 3383 | return ssl->ctx; |
0f113f3e | 3384 | } |
ed3883d2 | 3385 | |
4f43d0e7 | 3386 | int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) |
0f113f3e MC |
3387 | { |
3388 | return (X509_STORE_set_default_paths(ctx->cert_store)); | |
3389 | } | |
58964a49 | 3390 | |
d84a7b20 MC |
3391 | int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx) |
3392 | { | |
3393 | X509_LOOKUP *lookup; | |
3394 | ||
3395 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir()); | |
3396 | if (lookup == NULL) | |
3397 | return 0; | |
3398 | X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT); | |
3399 | ||
3400 | /* Clear any errors if the default directory does not exist */ | |
3401 | ERR_clear_error(); | |
3402 | ||
3403 | return 1; | |
3404 | } | |
3405 | ||
3406 | int SSL_CTX_set_default_verify_file(SSL_CTX *ctx) | |
3407 | { | |
3408 | X509_LOOKUP *lookup; | |
3409 | ||
3410 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file()); | |
3411 | if (lookup == NULL) | |
3412 | return 0; | |
3413 | ||
3414 | X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT); | |
3415 | ||
3416 | /* Clear any errors if the default file does not exist */ | |
3417 | ERR_clear_error(); | |
3418 | ||
3419 | return 1; | |
3420 | } | |
3421 | ||
303c0028 | 3422 | int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, |
0f113f3e MC |
3423 | const char *CApath) |
3424 | { | |
3425 | return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); | |
3426 | } | |
58964a49 | 3427 | |
45d87a1f | 3428 | void SSL_set_info_callback(SSL *ssl, |
0f113f3e MC |
3429 | void (*cb) (const SSL *ssl, int type, int val)) |
3430 | { | |
3431 | ssl->info_callback = cb; | |
3432 | } | |
3433 | ||
3434 | /* | |
3435 | * One compiler (Diab DCC) doesn't like argument names in returned function | |
3436 | * pointer. | |
3437 | */ | |
3438 | void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ , | |
3439 | int /* type */ , | |
3440 | int /* val */ ) { | |
3441 | return ssl->info_callback; | |
3442 | } | |
58964a49 | 3443 | |
0f113f3e MC |
3444 | void SSL_set_verify_result(SSL *ssl, long arg) |
3445 | { | |
3446 | ssl->verify_result = arg; | |
3447 | } | |
58964a49 | 3448 | |
0821bcd4 | 3449 | long SSL_get_verify_result(const SSL *ssl) |
0f113f3e MC |
3450 | { |
3451 | return (ssl->verify_result); | |
3452 | } | |
3453 | ||
d9f1c639 | 3454 | size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 3455 | { |
6b8f5d0d | 3456 | if (outlen == 0) |
858618e7 NM |
3457 | return sizeof(ssl->s3->client_random); |
3458 | if (outlen > sizeof(ssl->s3->client_random)) | |
3459 | outlen = sizeof(ssl->s3->client_random); | |
3460 | memcpy(out, ssl->s3->client_random, outlen); | |
d9f1c639 | 3461 | return outlen; |
858618e7 NM |
3462 | } |
3463 | ||
d9f1c639 | 3464 | size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 3465 | { |
6b8f5d0d | 3466 | if (outlen == 0) |
858618e7 NM |
3467 | return sizeof(ssl->s3->server_random); |
3468 | if (outlen > sizeof(ssl->s3->server_random)) | |
3469 | outlen = sizeof(ssl->s3->server_random); | |
3470 | memcpy(out, ssl->s3->server_random, outlen); | |
d9f1c639 | 3471 | return outlen; |
858618e7 NM |
3472 | } |
3473 | ||
d9f1c639 | 3474 | size_t SSL_SESSION_get_master_key(const SSL_SESSION *session, |
6b8f5d0d | 3475 | unsigned char *out, size_t outlen) |
858618e7 | 3476 | { |
6b8f5d0d MC |
3477 | if (session->master_key_length < 0) { |
3478 | /* Should never happen */ | |
3479 | return 0; | |
3480 | } | |
d9f1c639 MC |
3481 | if (outlen == 0) |
3482 | return session->master_key_length; | |
6b8f5d0d | 3483 | if (outlen > (size_t)session->master_key_length) |
858618e7 NM |
3484 | outlen = session->master_key_length; |
3485 | memcpy(out, session->master_key, outlen); | |
d9f1c639 | 3486 | return outlen; |
858618e7 NM |
3487 | } |
3488 | ||
0f113f3e MC |
3489 | int SSL_set_ex_data(SSL *s, int idx, void *arg) |
3490 | { | |
3491 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | |
3492 | } | |
3493 | ||
3494 | void *SSL_get_ex_data(const SSL *s, int idx) | |
3495 | { | |
3496 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | |
3497 | } | |
3498 | ||
0f113f3e MC |
3499 | int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) |
3500 | { | |
3501 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | |
3502 | } | |
3503 | ||
3504 | void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) | |
3505 | { | |
3506 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | |
3507 | } | |
58964a49 | 3508 | |
4f43d0e7 | 3509 | int ssl_ok(SSL *s) |
0f113f3e MC |
3510 | { |
3511 | return (1); | |
3512 | } | |
dfeab068 | 3513 | |
0821bcd4 | 3514 | X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) |
0f113f3e MC |
3515 | { |
3516 | return (ctx->cert_store); | |
3517 | } | |
413c4f45 | 3518 | |
0f113f3e MC |
3519 | void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) |
3520 | { | |
222561fe | 3521 | X509_STORE_free(ctx->cert_store); |
0f113f3e MC |
3522 | ctx->cert_store = store; |
3523 | } | |
413c4f45 | 3524 | |
0821bcd4 | 3525 | int SSL_want(const SSL *s) |
0f113f3e MC |
3526 | { |
3527 | return (s->rwstate); | |
3528 | } | |
413c4f45 | 3529 | |
0f113f3e | 3530 | /** |
4f43d0e7 BL |
3531 | * \brief Set the callback for generating temporary DH keys. |
3532 | * \param ctx the SSL context. | |
3533 | * \param dh the callback | |
3534 | */ | |
3535 | ||
bc36ee62 | 3536 | #ifndef OPENSSL_NO_DH |
0f113f3e MC |
3537 | void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, |
3538 | DH *(*dh) (SSL *ssl, int is_export, | |
3539 | int keylength)) | |
3540 | { | |
3541 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3542 | } | |
f8c3c05d | 3543 | |
0f113f3e MC |
3544 | void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export, |
3545 | int keylength)) | |
3546 | { | |
3547 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3548 | } | |
79df9d62 | 3549 | #endif |
15d21c2d | 3550 | |
ddac1974 NL |
3551 | #ifndef OPENSSL_NO_PSK |
3552 | int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) | |
0f113f3e MC |
3553 | { |
3554 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { | |
3555 | SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, | |
3556 | SSL_R_DATA_LENGTH_TOO_LONG); | |
3557 | return 0; | |
3558 | } | |
df6da24b | 3559 | OPENSSL_free(ctx->cert->psk_identity_hint); |
0f113f3e | 3560 | if (identity_hint != NULL) { |
7644a9ae | 3561 | ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 3562 | if (ctx->cert->psk_identity_hint == NULL) |
0f113f3e MC |
3563 | return 0; |
3564 | } else | |
df6da24b | 3565 | ctx->cert->psk_identity_hint = NULL; |
0f113f3e MC |
3566 | return 1; |
3567 | } | |
ddac1974 NL |
3568 | |
3569 | int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) | |
0f113f3e MC |
3570 | { |
3571 | if (s == NULL) | |
3572 | return 0; | |
3573 | ||
0f113f3e MC |
3574 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { |
3575 | SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); | |
3576 | return 0; | |
3577 | } | |
df6da24b | 3578 | OPENSSL_free(s->cert->psk_identity_hint); |
0f113f3e | 3579 | if (identity_hint != NULL) { |
7644a9ae | 3580 | s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 3581 | if (s->cert->psk_identity_hint == NULL) |
0f113f3e MC |
3582 | return 0; |
3583 | } else | |
df6da24b | 3584 | s->cert->psk_identity_hint = NULL; |
0f113f3e MC |
3585 | return 1; |
3586 | } | |
ddac1974 NL |
3587 | |
3588 | const char *SSL_get_psk_identity_hint(const SSL *s) | |
0f113f3e MC |
3589 | { |
3590 | if (s == NULL || s->session == NULL) | |
3591 | return NULL; | |
3592 | return (s->session->psk_identity_hint); | |
3593 | } | |
ddac1974 NL |
3594 | |
3595 | const char *SSL_get_psk_identity(const SSL *s) | |
0f113f3e MC |
3596 | { |
3597 | if (s == NULL || s->session == NULL) | |
3598 | return NULL; | |
3599 | return (s->session->psk_identity); | |
3600 | } | |
7806f3dd | 3601 | |
52b8dad8 | 3602 | void SSL_set_psk_client_callback(SSL *s, |
0f113f3e MC |
3603 | unsigned int (*cb) (SSL *ssl, |
3604 | const char *hint, | |
3605 | char *identity, | |
3606 | unsigned int | |
3607 | max_identity_len, | |
3608 | unsigned char *psk, | |
3609 | unsigned int | |
3610 | max_psk_len)) | |
3611 | { | |
3612 | s->psk_client_callback = cb; | |
3613 | } | |
7806f3dd NL |
3614 | |
3615 | void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, | |
0f113f3e MC |
3616 | unsigned int (*cb) (SSL *ssl, |
3617 | const char *hint, | |
3618 | char *identity, | |
3619 | unsigned int | |
3620 | max_identity_len, | |
3621 | unsigned char *psk, | |
3622 | unsigned int | |
3623 | max_psk_len)) | |
3624 | { | |
3625 | ctx->psk_client_callback = cb; | |
3626 | } | |
7806f3dd | 3627 | |
52b8dad8 | 3628 | void SSL_set_psk_server_callback(SSL *s, |
0f113f3e MC |
3629 | unsigned int (*cb) (SSL *ssl, |
3630 | const char *identity, | |
3631 | unsigned char *psk, | |
3632 | unsigned int | |
3633 | max_psk_len)) | |
3634 | { | |
3635 | s->psk_server_callback = cb; | |
3636 | } | |
7806f3dd NL |
3637 | |
3638 | void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, | |
0f113f3e MC |
3639 | unsigned int (*cb) (SSL *ssl, |
3640 | const char *identity, | |
3641 | unsigned char *psk, | |
3642 | unsigned int | |
3643 | max_psk_len)) | |
3644 | { | |
3645 | ctx->psk_server_callback = cb; | |
3646 | } | |
3647 | #endif | |
3648 | ||
3649 | void SSL_CTX_set_msg_callback(SSL_CTX *ctx, | |
3650 | void (*cb) (int write_p, int version, | |
3651 | int content_type, const void *buf, | |
3652 | size_t len, SSL *ssl, void *arg)) | |
3653 | { | |
3654 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
3655 | } | |
3656 | ||
3657 | void SSL_set_msg_callback(SSL *ssl, | |
3658 | void (*cb) (int write_p, int version, | |
3659 | int content_type, const void *buf, | |
3660 | size_t len, SSL *ssl, void *arg)) | |
3661 | { | |
3662 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
3663 | } | |
a661b653 | 3664 | |
7c2d4fee | 3665 | void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, |
0f113f3e MC |
3666 | int (*cb) (SSL *ssl, |
3667 | int | |
3668 | is_forward_secure)) | |
3669 | { | |
3670 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
3671 | (void (*)(void))cb); | |
3672 | } | |
3673 | ||
7c2d4fee | 3674 | void SSL_set_not_resumable_session_callback(SSL *ssl, |
0f113f3e MC |
3675 | int (*cb) (SSL *ssl, |
3676 | int is_forward_secure)) | |
3677 | { | |
3678 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
3679 | (void (*)(void))cb); | |
3680 | } | |
3681 | ||
3682 | /* | |
3683 | * Allocates new EVP_MD_CTX and sets pointer to it into given pointer | |
8483a003 | 3684 | * variable, freeing EVP_MD_CTX previously stored in that variable, if any. |
0f113f3e MC |
3685 | * If EVP_MD pointer is passed, initializes ctx with this md Returns newly |
3686 | * allocated ctx; | |
8671b898 | 3687 | */ |
b948e2c5 | 3688 | |
0f113f3e | 3689 | EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md) |
b948e2c5 | 3690 | { |
0f113f3e | 3691 | ssl_clear_hash_ctx(hash); |
bfb0641f | 3692 | *hash = EVP_MD_CTX_new(); |
5f3d93e4 | 3693 | if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) { |
bfb0641f | 3694 | EVP_MD_CTX_free(*hash); |
5f3d93e4 MC |
3695 | *hash = NULL; |
3696 | return NULL; | |
3697 | } | |
0f113f3e | 3698 | return *hash; |
b948e2c5 | 3699 | } |
0f113f3e MC |
3700 | |
3701 | void ssl_clear_hash_ctx(EVP_MD_CTX **hash) | |
b948e2c5 DSH |
3702 | { |
3703 | ||
0f113f3e | 3704 | if (*hash) |
bfb0641f | 3705 | EVP_MD_CTX_free(*hash); |
0f113f3e | 3706 | *hash = NULL; |
b948e2c5 | 3707 | } |
a661b653 | 3708 | |
48fbcbac DSH |
3709 | /* Retrieve handshake hashes */ |
3710 | int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen) | |
3711 | { | |
6e59a892 | 3712 | EVP_MD_CTX *ctx = NULL; |
28ba2541 DSH |
3713 | EVP_MD_CTX *hdgst = s->s3->handshake_dgst; |
3714 | int ret = EVP_MD_CTX_size(hdgst); | |
28ba2541 DSH |
3715 | if (ret < 0 || ret > outlen) { |
3716 | ret = 0; | |
3717 | goto err; | |
48fbcbac | 3718 | } |
bfb0641f | 3719 | ctx = EVP_MD_CTX_new(); |
6e59a892 RL |
3720 | if (ctx == NULL) { |
3721 | ret = 0; | |
3722 | goto err; | |
3723 | } | |
3724 | if (!EVP_MD_CTX_copy_ex(ctx, hdgst) | |
3725 | || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) | |
28ba2541 | 3726 | ret = 0; |
48fbcbac | 3727 | err: |
bfb0641f | 3728 | EVP_MD_CTX_free(ctx); |
48fbcbac DSH |
3729 | return ret; |
3730 | } | |
3731 | ||
b577fd0b | 3732 | int SSL_session_reused(SSL *s) |
0f113f3e MC |
3733 | { |
3734 | return s->hit; | |
3735 | } | |
08557cf2 | 3736 | |
87adf1fa | 3737 | int SSL_is_server(SSL *s) |
0f113f3e MC |
3738 | { |
3739 | return s->server; | |
3740 | } | |
87adf1fa | 3741 | |
47153c72 RS |
3742 | #if OPENSSL_API_COMPAT < 0x10100000L |
3743 | void SSL_set_debug(SSL *s, int debug) | |
3744 | { | |
3745 | /* Old function was do-nothing anyway... */ | |
3746 | (void)s; | |
3747 | (void)debug; | |
3748 | } | |
3749 | #endif | |
3750 | ||
3751 | ||
b362ccab | 3752 | void SSL_set_security_level(SSL *s, int level) |
0f113f3e MC |
3753 | { |
3754 | s->cert->sec_level = level; | |
3755 | } | |
b362ccab DSH |
3756 | |
3757 | int SSL_get_security_level(const SSL *s) | |
0f113f3e MC |
3758 | { |
3759 | return s->cert->sec_level; | |
3760 | } | |
b362ccab | 3761 | |
0f113f3e | 3762 | void SSL_set_security_callback(SSL *s, |
e4646a89 | 3763 | int (*cb) (const SSL *s, const SSL_CTX *ctx, int op, |
0f113f3e MC |
3764 | int bits, int nid, void *other, |
3765 | void *ex)) | |
3766 | { | |
3767 | s->cert->sec_cb = cb; | |
3768 | } | |
b362ccab | 3769 | |
e4646a89 | 3770 | int (*SSL_get_security_callback(const SSL *s)) (const SSL *s, const SSL_CTX *ctx, int op, |
0f113f3e MC |
3771 | int bits, int nid, |
3772 | void *other, void *ex) { | |
3773 | return s->cert->sec_cb; | |
3774 | } | |
b362ccab DSH |
3775 | |
3776 | void SSL_set0_security_ex_data(SSL *s, void *ex) | |
0f113f3e MC |
3777 | { |
3778 | s->cert->sec_ex = ex; | |
3779 | } | |
b362ccab DSH |
3780 | |
3781 | void *SSL_get0_security_ex_data(const SSL *s) | |
0f113f3e MC |
3782 | { |
3783 | return s->cert->sec_ex; | |
3784 | } | |
b362ccab DSH |
3785 | |
3786 | void SSL_CTX_set_security_level(SSL_CTX *ctx, int level) | |
0f113f3e MC |
3787 | { |
3788 | ctx->cert->sec_level = level; | |
3789 | } | |
b362ccab DSH |
3790 | |
3791 | int SSL_CTX_get_security_level(const SSL_CTX *ctx) | |
0f113f3e MC |
3792 | { |
3793 | return ctx->cert->sec_level; | |
3794 | } | |
b362ccab | 3795 | |
0f113f3e | 3796 | void SSL_CTX_set_security_callback(SSL_CTX *ctx, |
e4646a89 | 3797 | int (*cb) (const SSL *s, const SSL_CTX *ctx, int op, |
0f113f3e MC |
3798 | int bits, int nid, void *other, |
3799 | void *ex)) | |
3800 | { | |
3801 | ctx->cert->sec_cb = cb; | |
3802 | } | |
b362ccab | 3803 | |
e4646a89 KR |
3804 | int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s, |
3805 | const SSL_CTX *ctx, | |
0f113f3e MC |
3806 | int op, int bits, |
3807 | int nid, | |
3808 | void *other, | |
3809 | void *ex) { | |
3810 | return ctx->cert->sec_cb; | |
3811 | } | |
b362ccab DSH |
3812 | |
3813 | void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex) | |
0f113f3e MC |
3814 | { |
3815 | ctx->cert->sec_ex = ex; | |
3816 | } | |
b362ccab DSH |
3817 | |
3818 | void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx) | |
0f113f3e MC |
3819 | { |
3820 | return ctx->cert->sec_ex; | |
3821 | } | |
b362ccab | 3822 | |
8106cb8b VD |
3823 | |
3824 | /* | |
3825 | * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that | |
3826 | * can return unsigned long, instead of the generic long return value from the | |
3827 | * control interface. | |
3828 | */ | |
3829 | unsigned long SSL_CTX_get_options(const SSL_CTX *ctx) | |
3830 | { | |
3831 | return ctx->options; | |
3832 | } | |
3833 | unsigned long SSL_get_options(const SSL* s) | |
3834 | { | |
3835 | return s->options; | |
3836 | } | |
3837 | unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op) | |
3838 | { | |
3839 | return ctx->options |= op; | |
3840 | } | |
3841 | unsigned long SSL_set_options(SSL *s, unsigned long op) | |
3842 | { | |
3843 | return s->options |= op; | |
3844 | } | |
3845 | unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op) | |
3846 | { | |
3847 | return ctx->options &= ~op; | |
3848 | } | |
3849 | unsigned long SSL_clear_options(SSL *s, unsigned long op) | |
3850 | { | |
3851 | return s->options &= ~op; | |
3852 | } | |
3853 | ||
696178ed DSH |
3854 | STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s) |
3855 | { | |
3856 | return s->verified_chain; | |
3857 | } | |
3858 | ||
0f113f3e | 3859 | IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); |
ed29e82a RP |
3860 | |
3861 | #ifndef OPENSSL_NO_CT | |
3862 | ||
3863 | /* | |
3864 | * Moves SCTs from the |src| stack to the |dst| stack. | |
3865 | * The source of each SCT will be set to |origin|. | |
3866 | * If |dst| points to a NULL pointer, a new stack will be created and owned by | |
3867 | * the caller. | |
3868 | * Returns the number of SCTs moved, or a negative integer if an error occurs. | |
3869 | */ | |
3870 | static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src, sct_source_t origin) | |
3871 | { | |
3872 | int scts_moved = 0; | |
3873 | SCT *sct = NULL; | |
3874 | ||
3875 | if (*dst == NULL) { | |
3876 | *dst = sk_SCT_new_null(); | |
3877 | if (*dst == NULL) { | |
3878 | SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE); | |
3879 | goto err; | |
3880 | } | |
3881 | } | |
3882 | ||
3883 | while ((sct = sk_SCT_pop(src)) != NULL) { | |
3884 | if (SCT_set_source(sct, origin) != 1) | |
3885 | goto err; | |
3886 | ||
3887 | if (sk_SCT_push(*dst, sct) <= 0) | |
3888 | goto err; | |
3889 | scts_moved += 1; | |
3890 | } | |
3891 | ||
3892 | return scts_moved; | |
3893 | err: | |
3894 | if (sct != NULL) | |
3895 | sk_SCT_push(src, sct); /* Put the SCT back */ | |
cc7113e8 | 3896 | return -1; |
ed29e82a RP |
3897 | } |
3898 | ||
3899 | /* | |
3900 | * Look for data collected during ServerHello and parse if found. | |
3901 | * Return 1 on success, 0 on failure. | |
3902 | */ | |
3903 | static int ct_extract_tls_extension_scts(SSL *s) | |
3904 | { | |
3905 | int scts_extracted = 0; | |
3906 | ||
3907 | if (s->tlsext_scts != NULL) { | |
3908 | const unsigned char *p = s->tlsext_scts; | |
3909 | STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->tlsext_scts_len); | |
3910 | ||
3911 | scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION); | |
3912 | ||
3913 | SCT_LIST_free(scts); | |
3914 | } | |
3915 | ||
3916 | return scts_extracted; | |
3917 | } | |
3918 | ||
3919 | /* | |
3920 | * Checks for an OCSP response and then attempts to extract any SCTs found if it | |
3921 | * contains an SCT X509 extension. They will be stored in |s->scts|. | |
3922 | * Returns: | |
3923 | * - The number of SCTs extracted, assuming an OCSP response exists. | |
3924 | * - 0 if no OCSP response exists or it contains no SCTs. | |
3925 | * - A negative integer if an error occurs. | |
3926 | */ | |
3927 | static int ct_extract_ocsp_response_scts(SSL *s) | |
3928 | { | |
3e41ac35 | 3929 | #ifndef OPENSSL_NO_OCSP |
ed29e82a RP |
3930 | int scts_extracted = 0; |
3931 | const unsigned char *p; | |
3932 | OCSP_BASICRESP *br = NULL; | |
3933 | OCSP_RESPONSE *rsp = NULL; | |
3934 | STACK_OF(SCT) *scts = NULL; | |
3935 | int i; | |
3936 | ||
3937 | if (s->tlsext_ocsp_resp == NULL || s->tlsext_ocsp_resplen == 0) | |
3938 | goto err; | |
3939 | ||
3940 | p = s->tlsext_ocsp_resp; | |
3941 | rsp = d2i_OCSP_RESPONSE(NULL, &p, s->tlsext_ocsp_resplen); | |
3942 | if (rsp == NULL) | |
3943 | goto err; | |
3944 | ||
3945 | br = OCSP_response_get1_basic(rsp); | |
3946 | if (br == NULL) | |
3947 | goto err; | |
3948 | ||
3949 | for (i = 0; i < OCSP_resp_count(br); ++i) { | |
3950 | OCSP_SINGLERESP *single = OCSP_resp_get0(br, i); | |
3951 | ||
3952 | if (single == NULL) | |
3953 | continue; | |
3954 | ||
3955 | scts = OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL); | |
3956 | scts_extracted = ct_move_scts(&s->scts, scts, | |
3957 | SCT_SOURCE_OCSP_STAPLED_RESPONSE); | |
3958 | if (scts_extracted < 0) | |
3959 | goto err; | |
3960 | } | |
3961 | err: | |
3962 | SCT_LIST_free(scts); | |
3963 | OCSP_BASICRESP_free(br); | |
3964 | OCSP_RESPONSE_free(rsp); | |
3965 | return scts_extracted; | |
3e41ac35 MC |
3966 | #else |
3967 | /* Behave as if no OCSP response exists */ | |
3968 | return 0; | |
3969 | #endif | |
ed29e82a RP |
3970 | } |
3971 | ||
3972 | /* | |
3973 | * Attempts to extract SCTs from the peer certificate. | |
3974 | * Return the number of SCTs extracted, or a negative integer if an error | |
3975 | * occurs. | |
3976 | */ | |
3977 | static int ct_extract_x509v3_extension_scts(SSL *s) | |
3978 | { | |
3979 | int scts_extracted = 0; | |
3f3c7d26 | 3980 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
ed29e82a RP |
3981 | |
3982 | if (cert != NULL) { | |
3983 | STACK_OF(SCT) *scts = | |
3984 | X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL); | |
3985 | ||
3986 | scts_extracted = | |
3987 | ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION); | |
3988 | ||
3989 | SCT_LIST_free(scts); | |
3990 | } | |
3991 | ||
3992 | return scts_extracted; | |
3993 | } | |
3994 | ||
3995 | /* | |
3996 | * Attempts to find all received SCTs by checking TLS extensions, the OCSP | |
3997 | * response (if it exists) and X509v3 extensions in the certificate. | |
3998 | * Returns NULL if an error occurs. | |
3999 | */ | |
4000 | const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s) | |
4001 | { | |
4002 | if (!s->scts_parsed) { | |
4003 | if (ct_extract_tls_extension_scts(s) < 0 || | |
4004 | ct_extract_ocsp_response_scts(s) < 0 || | |
4005 | ct_extract_x509v3_extension_scts(s) < 0) | |
4006 | goto err; | |
4007 | ||
4008 | s->scts_parsed = 1; | |
4009 | } | |
4010 | return s->scts; | |
4011 | err: | |
4012 | return NULL; | |
4013 | } | |
4014 | ||
43341433 VD |
4015 | static int ct_permissive(const CT_POLICY_EVAL_CTX *ctx, |
4016 | const STACK_OF(SCT) *scts, void *unused_arg) | |
ed29e82a | 4017 | { |
43341433 VD |
4018 | return 1; |
4019 | } | |
4020 | ||
4021 | static int ct_strict(const CT_POLICY_EVAL_CTX *ctx, | |
4022 | const STACK_OF(SCT) *scts, void *unused_arg) | |
4023 | { | |
4024 | int count = scts != NULL ? sk_SCT_num(scts) : 0; | |
4025 | int i; | |
ed29e82a | 4026 | |
43341433 VD |
4027 | for (i = 0; i < count; ++i) { |
4028 | SCT *sct = sk_SCT_value(scts, i); | |
4029 | int status = SCT_get_validation_status(sct); | |
4030 | ||
4031 | if (status == SCT_VALIDATION_STATUS_VALID) | |
4032 | return 1; | |
4033 | } | |
4034 | SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS); | |
4035 | return 0; | |
4036 | } | |
4037 | ||
4038 | int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback, | |
4039 | void *arg) | |
4040 | { | |
ed29e82a RP |
4041 | /* |
4042 | * Since code exists that uses the custom extension handler for CT, look | |
4043 | * for this and throw an error if they have already registered to use CT. | |
4044 | */ | |
4045 | if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx, | |
4046 | TLSEXT_TYPE_signed_certificate_timestamp)) { | |
4047 | SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK, | |
4048 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4049 | return 0; |
ed29e82a RP |
4050 | } |
4051 | ||
ed29e82a RP |
4052 | if (callback != NULL) { |
4053 | /* If we are validating CT, then we MUST accept SCTs served via OCSP */ | |
4054 | if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp)) | |
43341433 | 4055 | return 0; |
ed29e82a RP |
4056 | } |
4057 | ||
43341433 VD |
4058 | s->ct_validation_callback = callback; |
4059 | s->ct_validation_callback_arg = arg; | |
4060 | ||
4061 | return 1; | |
ed29e82a RP |
4062 | } |
4063 | ||
43341433 VD |
4064 | int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx, |
4065 | ssl_ct_validation_cb callback, | |
ed29e82a RP |
4066 | void *arg) |
4067 | { | |
ed29e82a RP |
4068 | /* |
4069 | * Since code exists that uses the custom extension handler for CT, look for | |
4070 | * this and throw an error if they have already registered to use CT. | |
4071 | */ | |
4072 | if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx, | |
4073 | TLSEXT_TYPE_signed_certificate_timestamp)) { | |
4074 | SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK, | |
4075 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4076 | return 0; |
ed29e82a RP |
4077 | } |
4078 | ||
4079 | ctx->ct_validation_callback = callback; | |
4080 | ctx->ct_validation_callback_arg = arg; | |
43341433 | 4081 | return 1; |
ed29e82a RP |
4082 | } |
4083 | ||
43341433 | 4084 | int SSL_ct_is_enabled(const SSL *s) |
ed29e82a | 4085 | { |
43341433 | 4086 | return s->ct_validation_callback != NULL; |
ed29e82a RP |
4087 | } |
4088 | ||
43341433 | 4089 | int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx) |
ed29e82a | 4090 | { |
43341433 | 4091 | return ctx->ct_validation_callback != NULL; |
ed29e82a RP |
4092 | } |
4093 | ||
4d482ee2 | 4094 | int ssl_validate_ct(SSL *s) |
ed29e82a RP |
4095 | { |
4096 | int ret = 0; | |
3f3c7d26 | 4097 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
43341433 | 4098 | X509 *issuer; |
b9aec69a | 4099 | SSL_DANE *dane = &s->dane; |
ed29e82a RP |
4100 | CT_POLICY_EVAL_CTX *ctx = NULL; |
4101 | const STACK_OF(SCT) *scts; | |
4102 | ||
43341433 VD |
4103 | /* |
4104 | * If no callback is set, the peer is anonymous, or its chain is invalid, | |
4105 | * skip SCT validation - just return success. Applications that continue | |
4106 | * handshakes without certificates, with unverified chains, or pinned leaf | |
4107 | * certificates are outside the scope of the WebPKI and CT. | |
4108 | * | |
4109 | * The above exclusions notwithstanding the vast majority of peers will | |
4110 | * have rather ordinary certificate chains validated by typical | |
4111 | * applications that perform certificate verification and therefore will | |
4112 | * process SCTs when enabled. | |
4113 | */ | |
4114 | if (s->ct_validation_callback == NULL || cert == NULL || | |
4115 | s->verify_result != X509_V_OK || | |
4116 | s->verified_chain == NULL || | |
4117 | sk_X509_num(s->verified_chain) <= 1) | |
ed29e82a RP |
4118 | return 1; |
4119 | ||
43341433 VD |
4120 | /* |
4121 | * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3) | |
4122 | * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2 | |
4123 | */ | |
4124 | if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) { | |
4125 | switch (dane->mtlsa->usage) { | |
4126 | case DANETLS_USAGE_DANE_TA: | |
4127 | case DANETLS_USAGE_DANE_EE: | |
4128 | return 1; | |
4129 | } | |
ed29e82a RP |
4130 | } |
4131 | ||
ed29e82a RP |
4132 | ctx = CT_POLICY_EVAL_CTX_new(); |
4133 | if (ctx == NULL) { | |
4134 | SSLerr(SSL_F_SSL_VALIDATE_CT, ERR_R_MALLOC_FAILURE); | |
4135 | goto end; | |
4136 | } | |
4137 | ||
43341433 | 4138 | issuer = sk_X509_value(s->verified_chain, 1); |
ed29e82a RP |
4139 | CT_POLICY_EVAL_CTX_set0_cert(ctx, cert); |
4140 | CT_POLICY_EVAL_CTX_set0_issuer(ctx, issuer); | |
4141 | CT_POLICY_EVAL_CTX_set0_log_store(ctx, s->ctx->ctlog_store); | |
4142 | ||
4143 | scts = SSL_get0_peer_scts(s); | |
4144 | ||
43341433 VD |
4145 | /* |
4146 | * This function returns success (> 0) only when all the SCTs are valid, 0 | |
4147 | * when some are invalid, and < 0 on various internal errors (out of | |
4148 | * memory, etc.). Having some, or even all, invalid SCTs is not sufficient | |
4149 | * reason to abort the handshake, that decision is up to the callback. | |
4150 | * Therefore, we error out only in the unexpected case that the return | |
4151 | * value is negative. | |
4152 | * | |
4153 | * XXX: One might well argue that the return value of this function is an | |
f430ba31 | 4154 | * unfortunate design choice. Its job is only to determine the validation |
43341433 VD |
4155 | * status of each of the provided SCTs. So long as it correctly separates |
4156 | * the wheat from the chaff it should return success. Failure in this case | |
4157 | * ought to correspond to an inability to carry out its duties. | |
4158 | */ | |
4159 | if (SCT_LIST_validate(scts, ctx) < 0) { | |
ed29e82a RP |
4160 | SSLerr(SSL_F_SSL_VALIDATE_CT, SSL_R_SCT_VERIFICATION_FAILED); |
4161 | goto end; | |
4162 | } | |
4163 | ||
4164 | ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg); | |
4165 | if (ret < 0) | |
4166 | ret = 0; /* This function returns 0 on failure */ | |
4167 | ||
4168 | end: | |
4169 | CT_POLICY_EVAL_CTX_free(ctx); | |
f75b34c8 VD |
4170 | /* |
4171 | * With SSL_VERIFY_NONE the session may be cached and re-used despite a | |
4172 | * failure return code here. Also the application may wish the complete | |
4173 | * the handshake, and then disconnect cleanly at a higher layer, after | |
4174 | * checking the verification status of the completed connection. | |
4175 | * | |
4176 | * We therefore force a certificate verification failure which will be | |
4177 | * visible via SSL_get_verify_result() and cached as part of any resumed | |
4178 | * session. | |
4179 | * | |
4180 | * Note: the permissive callback is for information gathering only, always | |
4181 | * returns success, and does not affect verification status. Only the | |
4182 | * strict callback or a custom application-specified callback can trigger | |
4183 | * connection failure or record a verification error. | |
4184 | */ | |
4185 | if (ret <= 0) | |
4186 | s->verify_result = X509_V_ERR_NO_VALID_SCTS; | |
ed29e82a RP |
4187 | return ret; |
4188 | } | |
4189 | ||
43341433 VD |
4190 | int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode) |
4191 | { | |
4192 | switch (validation_mode) { | |
4193 | default: | |
4194 | SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
4195 | return 0; | |
4196 | case SSL_CT_VALIDATION_PERMISSIVE: | |
4197 | return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL); | |
4198 | case SSL_CT_VALIDATION_STRICT: | |
4199 | return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL); | |
4200 | } | |
4201 | } | |
4202 | ||
4203 | int SSL_enable_ct(SSL *s, int validation_mode) | |
4204 | { | |
4205 | switch (validation_mode) { | |
4206 | default: | |
4207 | SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
4208 | return 0; | |
4209 | case SSL_CT_VALIDATION_PERMISSIVE: | |
4210 | return SSL_set_ct_validation_callback(s, ct_permissive, NULL); | |
4211 | case SSL_CT_VALIDATION_STRICT: | |
4212 | return SSL_set_ct_validation_callback(s, ct_strict, NULL); | |
4213 | } | |
4214 | } | |
4215 | ||
ed29e82a RP |
4216 | int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx) |
4217 | { | |
328f36c5 | 4218 | return CTLOG_STORE_load_default_file(ctx->ctlog_store); |
ed29e82a RP |
4219 | } |
4220 | ||
4221 | int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path) | |
4222 | { | |
4223 | return CTLOG_STORE_load_file(ctx->ctlog_store, path); | |
4224 | } | |
4225 | ||
8359b57f RP |
4226 | void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE *logs) |
4227 | { | |
4228 | CTLOG_STORE_free(ctx->ctlog_store); | |
4229 | ctx->ctlog_store = logs; | |
4230 | } | |
4231 | ||
4232 | const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx) | |
4233 | { | |
4234 | return ctx->ctlog_store; | |
4235 | } | |
4236 | ||
ed29e82a | 4237 | #endif |