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0f113f3e | 1 | /* |
846e33c7 | 2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. |
bf21446a | 3 | * |
846e33c7 RS |
4 | * Licensed under the OpenSSL license (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
bf21446a | 8 | */ |
846e33c7 | 9 | |
ea262260 BM |
10 | /* ==================================================================== |
11 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | |
0f113f3e | 12 | * ECC cipher suite support in OpenSSL originally developed by |
ea262260 BM |
13 | * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. |
14 | */ | |
ddac1974 NL |
15 | /* ==================================================================== |
16 | * Copyright 2005 Nokia. All rights reserved. | |
17 | * | |
18 | * The portions of the attached software ("Contribution") is developed by | |
19 | * Nokia Corporation and is licensed pursuant to the OpenSSL open source | |
20 | * license. | |
21 | * | |
22 | * The Contribution, originally written by Mika Kousa and Pasi Eronen of | |
23 | * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites | |
24 | * support (see RFC 4279) to OpenSSL. | |
25 | * | |
26 | * No patent licenses or other rights except those expressly stated in | |
27 | * the OpenSSL open source license shall be deemed granted or received | |
28 | * expressly, by implication, estoppel, or otherwise. | |
29 | * | |
30 | * No assurances are provided by Nokia that the Contribution does not | |
31 | * infringe the patent or other intellectual property rights of any third | |
32 | * party or that the license provides you with all the necessary rights | |
33 | * to make use of the Contribution. | |
34 | * | |
35 | * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN | |
36 | * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA | |
37 | * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY | |
38 | * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR | |
39 | * OTHERWISE. | |
40 | */ | |
bbb8de09 | 41 | |
463a7b8c | 42 | #include <assert.h> |
d02b48c6 | 43 | #include <stdio.h> |
7b63c0fa | 44 | #include "ssl_locl.h" |
ec577822 BM |
45 | #include <openssl/objects.h> |
46 | #include <openssl/lhash.h> | |
bb7cd4e3 | 47 | #include <openssl/x509v3.h> |
6434abbf | 48 | #include <openssl/rand.h> |
67c8e7f4 | 49 | #include <openssl/ocsp.h> |
3c27208f RS |
50 | #include <openssl/dh.h> |
51 | #include <openssl/engine.h> | |
07bbc92c | 52 | #include <openssl/async.h> |
3c27208f | 53 | #include <openssl/ct.h> |
0f113f3e | 54 | |
df2ee0e2 | 55 | const char SSL_version_str[] = OPENSSL_VERSION_TEXT; |
0f113f3e MC |
56 | |
57 | SSL3_ENC_METHOD ssl3_undef_enc_method = { | |
58 | /* | |
59 | * evil casts, but these functions are only called if there's a library | |
60 | * bug | |
61 | */ | |
72716e79 | 62 | (int (*)(SSL *, SSL3_RECORD *, size_t, int))ssl_undefined_function, |
d102d9df | 63 | (int (*)(SSL *, SSL3_RECORD *, unsigned char *, int))ssl_undefined_function, |
0f113f3e | 64 | ssl_undefined_function, |
8c1a5343 | 65 | (int (*)(SSL *, unsigned char *, unsigned char *, size_t, size_t *)) |
0f113f3e MC |
66 | ssl_undefined_function, |
67 | (int (*)(SSL *, int))ssl_undefined_function, | |
6db6bc5a | 68 | (size_t (*)(SSL *, const char *, size_t, unsigned char *)) |
0f113f3e | 69 | ssl_undefined_function, |
0f113f3e MC |
70 | NULL, /* client_finished_label */ |
71 | 0, /* client_finished_label_len */ | |
72 | NULL, /* server_finished_label */ | |
73 | 0, /* server_finished_label_len */ | |
74 | (int (*)(int))ssl_undefined_function, | |
75 | (int (*)(SSL *, unsigned char *, size_t, const char *, | |
76 | size_t, const unsigned char *, size_t, | |
77 | int use_context))ssl_undefined_function, | |
78 | }; | |
d02b48c6 | 79 | |
07bbc92c MC |
80 | struct ssl_async_args { |
81 | SSL *s; | |
82 | void *buf; | |
348240c6 | 83 | size_t num; |
a230b26e | 84 | enum { READFUNC, WRITEFUNC, OTHERFUNC } type; |
add2f5ca | 85 | union { |
eda75751 | 86 | int (*func_read) (SSL *, void *, size_t, size_t *); |
7ee8627f | 87 | int (*func_write) (SSL *, const void *, size_t, size_t *); |
a230b26e | 88 | int (*func_other) (SSL *); |
add2f5ca | 89 | } f; |
07bbc92c MC |
90 | }; |
91 | ||
919ba009 VD |
92 | static const struct { |
93 | uint8_t mtype; | |
94 | uint8_t ord; | |
a230b26e | 95 | int nid; |
919ba009 | 96 | } dane_mds[] = { |
a230b26e EK |
97 | { |
98 | DANETLS_MATCHING_FULL, 0, NID_undef | |
99 | }, | |
100 | { | |
101 | DANETLS_MATCHING_2256, 1, NID_sha256 | |
102 | }, | |
103 | { | |
104 | DANETLS_MATCHING_2512, 2, NID_sha512 | |
105 | }, | |
919ba009 VD |
106 | }; |
107 | ||
108 | static int dane_ctx_enable(struct dane_ctx_st *dctx) | |
109 | { | |
110 | const EVP_MD **mdevp; | |
111 | uint8_t *mdord; | |
112 | uint8_t mdmax = DANETLS_MATCHING_LAST; | |
a230b26e | 113 | int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */ |
919ba009 VD |
114 | size_t i; |
115 | ||
5ae4ceb9 VD |
116 | if (dctx->mdevp != NULL) |
117 | return 1; | |
118 | ||
919ba009 VD |
119 | mdevp = OPENSSL_zalloc(n * sizeof(*mdevp)); |
120 | mdord = OPENSSL_zalloc(n * sizeof(*mdord)); | |
121 | ||
122 | if (mdord == NULL || mdevp == NULL) { | |
b3bd3d5a | 123 | OPENSSL_free(mdord); |
919ba009 VD |
124 | OPENSSL_free(mdevp); |
125 | SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE); | |
126 | return 0; | |
127 | } | |
128 | ||
129 | /* Install default entries */ | |
130 | for (i = 0; i < OSSL_NELEM(dane_mds); ++i) { | |
131 | const EVP_MD *md; | |
132 | ||
133 | if (dane_mds[i].nid == NID_undef || | |
134 | (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL) | |
135 | continue; | |
136 | mdevp[dane_mds[i].mtype] = md; | |
137 | mdord[dane_mds[i].mtype] = dane_mds[i].ord; | |
138 | } | |
139 | ||
140 | dctx->mdevp = mdevp; | |
141 | dctx->mdord = mdord; | |
142 | dctx->mdmax = mdmax; | |
143 | ||
144 | return 1; | |
145 | } | |
146 | ||
147 | static void dane_ctx_final(struct dane_ctx_st *dctx) | |
148 | { | |
149 | OPENSSL_free(dctx->mdevp); | |
150 | dctx->mdevp = NULL; | |
151 | ||
152 | OPENSSL_free(dctx->mdord); | |
153 | dctx->mdord = NULL; | |
154 | dctx->mdmax = 0; | |
155 | } | |
156 | ||
157 | static void tlsa_free(danetls_record *t) | |
158 | { | |
159 | if (t == NULL) | |
160 | return; | |
161 | OPENSSL_free(t->data); | |
162 | EVP_PKEY_free(t->spki); | |
163 | OPENSSL_free(t); | |
164 | } | |
165 | ||
b9aec69a | 166 | static void dane_final(SSL_DANE *dane) |
919ba009 VD |
167 | { |
168 | sk_danetls_record_pop_free(dane->trecs, tlsa_free); | |
169 | dane->trecs = NULL; | |
170 | ||
171 | sk_X509_pop_free(dane->certs, X509_free); | |
172 | dane->certs = NULL; | |
173 | ||
174 | X509_free(dane->mcert); | |
175 | dane->mcert = NULL; | |
176 | dane->mtlsa = NULL; | |
177 | dane->mdpth = -1; | |
178 | dane->pdpth = -1; | |
179 | } | |
180 | ||
181 | /* | |
182 | * dane_copy - Copy dane configuration, sans verification state. | |
183 | */ | |
184 | static int ssl_dane_dup(SSL *to, SSL *from) | |
185 | { | |
186 | int num; | |
187 | int i; | |
188 | ||
189 | if (!DANETLS_ENABLED(&from->dane)) | |
190 | return 1; | |
191 | ||
192 | dane_final(&to->dane); | |
5ae4ceb9 | 193 | to->dane.flags = from->dane.flags; |
9f6b22b8 VD |
194 | to->dane.dctx = &to->ctx->dane; |
195 | to->dane.trecs = sk_danetls_record_new_null(); | |
196 | ||
197 | if (to->dane.trecs == NULL) { | |
198 | SSLerr(SSL_F_SSL_DANE_DUP, ERR_R_MALLOC_FAILURE); | |
199 | return 0; | |
200 | } | |
919ba009 | 201 | |
a230b26e | 202 | num = sk_danetls_record_num(from->dane.trecs); |
919ba009 VD |
203 | for (i = 0; i < num; ++i) { |
204 | danetls_record *t = sk_danetls_record_value(from->dane.trecs, i); | |
9f6b22b8 | 205 | |
919ba009 VD |
206 | if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype, |
207 | t->data, t->dlen) <= 0) | |
208 | return 0; | |
209 | } | |
210 | return 1; | |
211 | } | |
212 | ||
a230b26e EK |
213 | static int dane_mtype_set(struct dane_ctx_st *dctx, |
214 | const EVP_MD *md, uint8_t mtype, uint8_t ord) | |
919ba009 VD |
215 | { |
216 | int i; | |
217 | ||
218 | if (mtype == DANETLS_MATCHING_FULL && md != NULL) { | |
a230b26e | 219 | SSLerr(SSL_F_DANE_MTYPE_SET, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL); |
919ba009 VD |
220 | return 0; |
221 | } | |
222 | ||
223 | if (mtype > dctx->mdmax) { | |
224 | const EVP_MD **mdevp; | |
225 | uint8_t *mdord; | |
a230b26e | 226 | int n = ((int)mtype) + 1; |
919ba009 VD |
227 | |
228 | mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp)); | |
229 | if (mdevp == NULL) { | |
230 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
231 | return -1; | |
232 | } | |
233 | dctx->mdevp = mdevp; | |
234 | ||
235 | mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord)); | |
236 | if (mdord == NULL) { | |
237 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
238 | return -1; | |
239 | } | |
240 | dctx->mdord = mdord; | |
241 | ||
242 | /* Zero-fill any gaps */ | |
a230b26e | 243 | for (i = dctx->mdmax + 1; i < mtype; ++i) { |
919ba009 VD |
244 | mdevp[i] = NULL; |
245 | mdord[i] = 0; | |
246 | } | |
247 | ||
248 | dctx->mdmax = mtype; | |
249 | } | |
250 | ||
251 | dctx->mdevp[mtype] = md; | |
252 | /* Coerce ordinal of disabled matching types to 0 */ | |
253 | dctx->mdord[mtype] = (md == NULL) ? 0 : ord; | |
254 | ||
255 | return 1; | |
256 | } | |
257 | ||
b9aec69a | 258 | static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype) |
919ba009 VD |
259 | { |
260 | if (mtype > dane->dctx->mdmax) | |
261 | return NULL; | |
262 | return dane->dctx->mdevp[mtype]; | |
263 | } | |
264 | ||
a230b26e EK |
265 | static int dane_tlsa_add(SSL_DANE *dane, |
266 | uint8_t usage, | |
267 | uint8_t selector, | |
268 | uint8_t mtype, unsigned char *data, size_t dlen) | |
919ba009 VD |
269 | { |
270 | danetls_record *t; | |
271 | const EVP_MD *md = NULL; | |
272 | int ilen = (int)dlen; | |
273 | int i; | |
9f6b22b8 | 274 | int num; |
919ba009 VD |
275 | |
276 | if (dane->trecs == NULL) { | |
277 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED); | |
278 | return -1; | |
279 | } | |
280 | ||
281 | if (ilen < 0 || dlen != (size_t)ilen) { | |
282 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH); | |
283 | return 0; | |
284 | } | |
285 | ||
286 | if (usage > DANETLS_USAGE_LAST) { | |
287 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE); | |
288 | return 0; | |
289 | } | |
290 | ||
291 | if (selector > DANETLS_SELECTOR_LAST) { | |
292 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR); | |
293 | return 0; | |
294 | } | |
295 | ||
296 | if (mtype != DANETLS_MATCHING_FULL) { | |
297 | md = tlsa_md_get(dane, mtype); | |
298 | if (md == NULL) { | |
299 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE); | |
300 | return 0; | |
301 | } | |
302 | } | |
303 | ||
304 | if (md != NULL && dlen != (size_t)EVP_MD_size(md)) { | |
305 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH); | |
306 | return 0; | |
307 | } | |
308 | if (!data) { | |
309 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA); | |
310 | return 0; | |
311 | } | |
312 | ||
313 | if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) { | |
314 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
315 | return -1; | |
316 | } | |
317 | ||
318 | t->usage = usage; | |
319 | t->selector = selector; | |
320 | t->mtype = mtype; | |
348240c6 | 321 | t->data = OPENSSL_malloc(dlen); |
919ba009 VD |
322 | if (t->data == NULL) { |
323 | tlsa_free(t); | |
324 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
325 | return -1; | |
326 | } | |
348240c6 MC |
327 | memcpy(t->data, data, dlen); |
328 | t->dlen = dlen; | |
919ba009 VD |
329 | |
330 | /* Validate and cache full certificate or public key */ | |
331 | if (mtype == DANETLS_MATCHING_FULL) { | |
332 | const unsigned char *p = data; | |
333 | X509 *cert = NULL; | |
334 | EVP_PKEY *pkey = NULL; | |
335 | ||
336 | switch (selector) { | |
337 | case DANETLS_SELECTOR_CERT: | |
348240c6 | 338 | if (!d2i_X509(&cert, &p, ilen) || p < data || |
919ba009 VD |
339 | dlen != (size_t)(p - data)) { |
340 | tlsa_free(t); | |
341 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
342 | return 0; | |
343 | } | |
344 | if (X509_get0_pubkey(cert) == NULL) { | |
345 | tlsa_free(t); | |
346 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
347 | return 0; | |
348 | } | |
349 | ||
350 | if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) { | |
351 | X509_free(cert); | |
352 | break; | |
353 | } | |
354 | ||
355 | /* | |
356 | * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA | |
357 | * records that contain full certificates of trust-anchors that are | |
358 | * not present in the wire chain. For usage PKIX-TA(0), we augment | |
359 | * the chain with untrusted Full(0) certificates from DNS, in case | |
360 | * they are missing from the chain. | |
361 | */ | |
362 | if ((dane->certs == NULL && | |
363 | (dane->certs = sk_X509_new_null()) == NULL) || | |
364 | !sk_X509_push(dane->certs, cert)) { | |
365 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
366 | X509_free(cert); | |
367 | tlsa_free(t); | |
368 | return -1; | |
369 | } | |
370 | break; | |
371 | ||
372 | case DANETLS_SELECTOR_SPKI: | |
348240c6 | 373 | if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data || |
919ba009 VD |
374 | dlen != (size_t)(p - data)) { |
375 | tlsa_free(t); | |
376 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY); | |
377 | return 0; | |
378 | } | |
379 | ||
380 | /* | |
381 | * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA | |
382 | * records that contain full bare keys of trust-anchors that are | |
383 | * not present in the wire chain. | |
384 | */ | |
385 | if (usage == DANETLS_USAGE_DANE_TA) | |
386 | t->spki = pkey; | |
387 | else | |
388 | EVP_PKEY_free(pkey); | |
389 | break; | |
390 | } | |
391 | } | |
392 | ||
393 | /*- | |
394 | * Find the right insertion point for the new record. | |
395 | * | |
396 | * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that | |
397 | * they can be processed first, as they require no chain building, and no | |
398 | * expiration or hostname checks. Because DANE-EE(3) is numerically | |
399 | * largest, this is accomplished via descending sort by "usage". | |
400 | * | |
401 | * We also sort in descending order by matching ordinal to simplify | |
402 | * the implementation of digest agility in the verification code. | |
403 | * | |
404 | * The choice of order for the selector is not significant, so we | |
405 | * use the same descending order for consistency. | |
406 | */ | |
9f6b22b8 VD |
407 | num = sk_danetls_record_num(dane->trecs); |
408 | for (i = 0; i < num; ++i) { | |
919ba009 | 409 | danetls_record *rec = sk_danetls_record_value(dane->trecs, i); |
9f6b22b8 | 410 | |
919ba009 VD |
411 | if (rec->usage > usage) |
412 | continue; | |
413 | if (rec->usage < usage) | |
414 | break; | |
415 | if (rec->selector > selector) | |
416 | continue; | |
417 | if (rec->selector < selector) | |
418 | break; | |
419 | if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype]) | |
420 | continue; | |
421 | break; | |
422 | } | |
423 | ||
424 | if (!sk_danetls_record_insert(dane->trecs, t, i)) { | |
425 | tlsa_free(t); | |
426 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
427 | return -1; | |
428 | } | |
429 | dane->umask |= DANETLS_USAGE_BIT(usage); | |
430 | ||
431 | return 1; | |
432 | } | |
433 | ||
d31fb0b5 RS |
434 | static void clear_ciphers(SSL *s) |
435 | { | |
436 | /* clear the current cipher */ | |
437 | ssl_clear_cipher_ctx(s); | |
438 | ssl_clear_hash_ctx(&s->read_hash); | |
439 | ssl_clear_hash_ctx(&s->write_hash); | |
440 | } | |
441 | ||
4f43d0e7 | 442 | int SSL_clear(SSL *s) |
0f113f3e | 443 | { |
0f113f3e MC |
444 | if (s->method == NULL) { |
445 | SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED); | |
446 | return (0); | |
447 | } | |
d02b48c6 | 448 | |
0f113f3e MC |
449 | if (ssl_clear_bad_session(s)) { |
450 | SSL_SESSION_free(s->session); | |
451 | s->session = NULL; | |
452 | } | |
d62bfb39 | 453 | |
0f113f3e MC |
454 | s->error = 0; |
455 | s->hit = 0; | |
456 | s->shutdown = 0; | |
d02b48c6 | 457 | |
0f113f3e MC |
458 | if (s->renegotiate) { |
459 | SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR); | |
460 | return 0; | |
461 | } | |
d02b48c6 | 462 | |
fe3a3291 | 463 | ossl_statem_clear(s); |
413c4f45 | 464 | |
0f113f3e MC |
465 | s->version = s->method->version; |
466 | s->client_version = s->version; | |
467 | s->rwstate = SSL_NOTHING; | |
d02b48c6 | 468 | |
25aaa98a RS |
469 | BUF_MEM_free(s->init_buf); |
470 | s->init_buf = NULL; | |
d31fb0b5 | 471 | clear_ciphers(s); |
0f113f3e | 472 | s->first_packet = 0; |
d02b48c6 | 473 | |
919ba009 VD |
474 | /* Reset DANE verification result state */ |
475 | s->dane.mdpth = -1; | |
476 | s->dane.pdpth = -1; | |
477 | X509_free(s->dane.mcert); | |
478 | s->dane.mcert = NULL; | |
479 | s->dane.mtlsa = NULL; | |
480 | ||
481 | /* Clear the verification result peername */ | |
482 | X509_VERIFY_PARAM_move_peername(s->param, NULL); | |
483 | ||
0f113f3e MC |
484 | /* |
485 | * Check to see if we were changed into a different method, if so, revert | |
486 | * back if we are not doing session-id reuse. | |
487 | */ | |
024f543c | 488 | if (!ossl_statem_get_in_handshake(s) && (s->session == NULL) |
0f113f3e MC |
489 | && (s->method != s->ctx->method)) { |
490 | s->method->ssl_free(s); | |
491 | s->method = s->ctx->method; | |
492 | if (!s->method->ssl_new(s)) | |
493 | return (0); | |
494 | } else | |
0f113f3e | 495 | s->method->ssl_clear(s); |
33d23b87 | 496 | |
af9752e5 | 497 | RECORD_LAYER_clear(&s->rlayer); |
33d23b87 | 498 | |
0f113f3e MC |
499 | return (1); |
500 | } | |
d02b48c6 | 501 | |
4f43d0e7 | 502 | /** Used to change an SSL_CTXs default SSL method type */ |
0f113f3e MC |
503 | int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) |
504 | { | |
505 | STACK_OF(SSL_CIPHER) *sk; | |
506 | ||
507 | ctx->method = meth; | |
508 | ||
509 | sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list), | |
510 | &(ctx->cipher_list_by_id), | |
511 | SSL_DEFAULT_CIPHER_LIST, ctx->cert); | |
512 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { | |
a230b26e | 513 | SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); |
0f113f3e MC |
514 | return (0); |
515 | } | |
516 | return (1); | |
517 | } | |
d02b48c6 | 518 | |
4f43d0e7 | 519 | SSL *SSL_new(SSL_CTX *ctx) |
0f113f3e MC |
520 | { |
521 | SSL *s; | |
522 | ||
523 | if (ctx == NULL) { | |
524 | SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX); | |
525 | return (NULL); | |
526 | } | |
527 | if (ctx->method == NULL) { | |
528 | SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); | |
529 | return (NULL); | |
530 | } | |
531 | ||
b51bce94 | 532 | s = OPENSSL_zalloc(sizeof(*s)); |
0f113f3e MC |
533 | if (s == NULL) |
534 | goto err; | |
0f113f3e | 535 | |
16203f7b AG |
536 | s->lock = CRYPTO_THREAD_lock_new(); |
537 | if (s->lock == NULL) { | |
538 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); | |
539 | OPENSSL_free(s); | |
540 | return NULL; | |
541 | } | |
542 | ||
c036e210 | 543 | RECORD_LAYER_init(&s->rlayer, s); |
28d59af8 | 544 | |
0f113f3e | 545 | s->options = ctx->options; |
5ae4ceb9 | 546 | s->dane.flags = ctx->dane.flags; |
7946ab33 KR |
547 | s->min_proto_version = ctx->min_proto_version; |
548 | s->max_proto_version = ctx->max_proto_version; | |
0f113f3e MC |
549 | s->mode = ctx->mode; |
550 | s->max_cert_list = ctx->max_cert_list; | |
0e04674e | 551 | s->references = 1; |
0f113f3e | 552 | |
2c382349 KR |
553 | /* |
554 | * Earlier library versions used to copy the pointer to the CERT, not | |
555 | * its contents; only when setting new parameters for the per-SSL | |
556 | * copy, ssl_cert_new would be called (and the direct reference to | |
557 | * the per-SSL_CTX settings would be lost, but those still were | |
558 | * indirectly accessed for various purposes, and for that reason they | |
559 | * used to be known as s->ctx->default_cert). Now we don't look at the | |
560 | * SSL_CTX's CERT after having duplicated it once. | |
561 | */ | |
562 | s->cert = ssl_cert_dup(ctx->cert); | |
563 | if (s->cert == NULL) | |
564 | goto err; | |
0f113f3e | 565 | |
52e1d7b1 | 566 | RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead); |
0f113f3e MC |
567 | s->msg_callback = ctx->msg_callback; |
568 | s->msg_callback_arg = ctx->msg_callback_arg; | |
569 | s->verify_mode = ctx->verify_mode; | |
570 | s->not_resumable_session_cb = ctx->not_resumable_session_cb; | |
0f113f3e MC |
571 | s->sid_ctx_length = ctx->sid_ctx_length; |
572 | OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); | |
573 | memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); | |
574 | s->verify_callback = ctx->default_verify_callback; | |
575 | s->generate_session_id = ctx->generate_session_id; | |
576 | ||
577 | s->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 578 | if (s->param == NULL) |
0f113f3e MC |
579 | goto err; |
580 | X509_VERIFY_PARAM_inherit(s->param, ctx->param); | |
0f113f3e MC |
581 | s->quiet_shutdown = ctx->quiet_shutdown; |
582 | s->max_send_fragment = ctx->max_send_fragment; | |
d102d9df MC |
583 | s->split_send_fragment = ctx->split_send_fragment; |
584 | s->max_pipelines = ctx->max_pipelines; | |
94777c9c MC |
585 | if (s->max_pipelines > 1) |
586 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
dad78fb1 MC |
587 | if (ctx->default_read_buf_len > 0) |
588 | SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len); | |
bf21446a | 589 | |
16203f7b | 590 | SSL_CTX_up_ref(ctx); |
0f113f3e | 591 | s->ctx = ctx; |
0f113f3e MC |
592 | s->tlsext_debug_cb = 0; |
593 | s->tlsext_debug_arg = NULL; | |
594 | s->tlsext_ticket_expected = 0; | |
ba261f71 | 595 | s->tlsext_status_type = ctx->tlsext_status_type; |
0f113f3e MC |
596 | s->tlsext_status_expected = 0; |
597 | s->tlsext_ocsp_ids = NULL; | |
598 | s->tlsext_ocsp_exts = NULL; | |
599 | s->tlsext_ocsp_resp = NULL; | |
8b0e934a | 600 | s->tlsext_ocsp_resplen = 0; |
16203f7b | 601 | SSL_CTX_up_ref(ctx); |
0f113f3e | 602 | s->initial_ctx = ctx; |
a230b26e | 603 | #ifndef OPENSSL_NO_EC |
0f113f3e MC |
604 | if (ctx->tlsext_ecpointformatlist) { |
605 | s->tlsext_ecpointformatlist = | |
7644a9ae RS |
606 | OPENSSL_memdup(ctx->tlsext_ecpointformatlist, |
607 | ctx->tlsext_ecpointformatlist_length); | |
0f113f3e MC |
608 | if (!s->tlsext_ecpointformatlist) |
609 | goto err; | |
610 | s->tlsext_ecpointformatlist_length = | |
611 | ctx->tlsext_ecpointformatlist_length; | |
612 | } | |
613 | if (ctx->tlsext_ellipticcurvelist) { | |
614 | s->tlsext_ellipticcurvelist = | |
7644a9ae RS |
615 | OPENSSL_memdup(ctx->tlsext_ellipticcurvelist, |
616 | ctx->tlsext_ellipticcurvelist_length); | |
0f113f3e MC |
617 | if (!s->tlsext_ellipticcurvelist) |
618 | goto err; | |
619 | s->tlsext_ellipticcurvelist_length = | |
620 | ctx->tlsext_ellipticcurvelist_length; | |
621 | } | |
a230b26e EK |
622 | #endif |
623 | #ifndef OPENSSL_NO_NEXTPROTONEG | |
0f113f3e | 624 | s->next_proto_negotiated = NULL; |
a230b26e | 625 | #endif |
6f017a8f | 626 | |
0f113f3e MC |
627 | if (s->ctx->alpn_client_proto_list) { |
628 | s->alpn_client_proto_list = | |
629 | OPENSSL_malloc(s->ctx->alpn_client_proto_list_len); | |
630 | if (s->alpn_client_proto_list == NULL) | |
631 | goto err; | |
632 | memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list, | |
633 | s->ctx->alpn_client_proto_list_len); | |
634 | s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len; | |
635 | } | |
d02b48c6 | 636 | |
696178ed | 637 | s->verified_chain = NULL; |
0f113f3e | 638 | s->verify_result = X509_V_OK; |
d02b48c6 | 639 | |
a974e64a MC |
640 | s->default_passwd_callback = ctx->default_passwd_callback; |
641 | s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata; | |
642 | ||
0f113f3e | 643 | s->method = ctx->method; |
d02b48c6 | 644 | |
0f113f3e MC |
645 | if (!s->method->ssl_new(s)) |
646 | goto err; | |
d02b48c6 | 647 | |
0f113f3e | 648 | s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1; |
bf21446a | 649 | |
61986d32 | 650 | if (!SSL_clear(s)) |
69f68237 | 651 | goto err; |
58964a49 | 652 | |
25a807bc F |
653 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data)) |
654 | goto err; | |
58964a49 | 655 | |
ddac1974 | 656 | #ifndef OPENSSL_NO_PSK |
0f113f3e MC |
657 | s->psk_client_callback = ctx->psk_client_callback; |
658 | s->psk_server_callback = ctx->psk_server_callback; | |
ddac1974 NL |
659 | #endif |
660 | ||
07bbc92c MC |
661 | s->job = NULL; |
662 | ||
ed29e82a RP |
663 | #ifndef OPENSSL_NO_CT |
664 | if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback, | |
a230b26e | 665 | ctx->ct_validation_callback_arg)) |
ed29e82a RP |
666 | goto err; |
667 | #endif | |
668 | ||
16203f7b | 669 | return s; |
0f113f3e | 670 | err: |
62adbcee | 671 | SSL_free(s); |
0f113f3e | 672 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); |
16203f7b | 673 | return NULL; |
0f113f3e | 674 | } |
d02b48c6 | 675 | |
e417070c RS |
676 | int SSL_is_dtls(const SSL *s) |
677 | { | |
678 | return SSL_IS_DTLS(s) ? 1 : 0; | |
679 | } | |
680 | ||
c5ebfcab | 681 | int SSL_up_ref(SSL *s) |
a18a31e4 | 682 | { |
16203f7b | 683 | int i; |
c5ebfcab F |
684 | |
685 | if (CRYPTO_atomic_add(&s->references, 1, &i, s->lock) <= 0) | |
686 | return 0; | |
687 | ||
688 | REF_PRINT_COUNT("SSL", s); | |
689 | REF_ASSERT_ISNT(i < 2); | |
690 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
691 | } |
692 | ||
0f113f3e MC |
693 | int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, |
694 | unsigned int sid_ctx_len) | |
695 | { | |
696 | if (sid_ctx_len > sizeof ctx->sid_ctx) { | |
697 | SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT, | |
698 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
699 | return 0; | |
700 | } | |
701 | ctx->sid_ctx_length = sid_ctx_len; | |
702 | memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); | |
4eb77b26 BM |
703 | |
704 | return 1; | |
0f113f3e | 705 | } |
4eb77b26 | 706 | |
0f113f3e MC |
707 | int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, |
708 | unsigned int sid_ctx_len) | |
709 | { | |
710 | if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { | |
711 | SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT, | |
712 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
713 | return 0; | |
714 | } | |
715 | ssl->sid_ctx_length = sid_ctx_len; | |
716 | memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); | |
b4cadc6e BL |
717 | |
718 | return 1; | |
0f113f3e | 719 | } |
b4cadc6e | 720 | |
dc644fe2 | 721 | int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) |
0f113f3e | 722 | { |
16203f7b | 723 | CRYPTO_THREAD_write_lock(ctx->lock); |
0f113f3e | 724 | ctx->generate_session_id = cb; |
16203f7b | 725 | CRYPTO_THREAD_unlock(ctx->lock); |
0f113f3e MC |
726 | return 1; |
727 | } | |
dc644fe2 GT |
728 | |
729 | int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) | |
0f113f3e | 730 | { |
16203f7b | 731 | CRYPTO_THREAD_write_lock(ssl->lock); |
0f113f3e | 732 | ssl->generate_session_id = cb; |
16203f7b | 733 | CRYPTO_THREAD_unlock(ssl->lock); |
0f113f3e MC |
734 | return 1; |
735 | } | |
dc644fe2 | 736 | |
f85c9904 | 737 | int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, |
0f113f3e MC |
738 | unsigned int id_len) |
739 | { | |
740 | /* | |
741 | * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how | |
742 | * we can "construct" a session to give us the desired check - ie. to | |
743 | * find if there's a session in the hash table that would conflict with | |
744 | * any new session built out of this id/id_len and the ssl_version in use | |
745 | * by this SSL. | |
746 | */ | |
747 | SSL_SESSION r, *p; | |
748 | ||
749 | if (id_len > sizeof r.session_id) | |
750 | return 0; | |
751 | ||
752 | r.ssl_version = ssl->version; | |
753 | r.session_id_length = id_len; | |
754 | memcpy(r.session_id, id, id_len); | |
755 | ||
e2bb9b9b TS |
756 | CRYPTO_THREAD_read_lock(ssl->session_ctx->lock); |
757 | p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r); | |
758 | CRYPTO_THREAD_unlock(ssl->session_ctx->lock); | |
0f113f3e MC |
759 | return (p != NULL); |
760 | } | |
dc644fe2 | 761 | |
bb7cd4e3 | 762 | int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) |
0f113f3e MC |
763 | { |
764 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
765 | } | |
bb7cd4e3 DSH |
766 | |
767 | int SSL_set_purpose(SSL *s, int purpose) | |
0f113f3e MC |
768 | { |
769 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
770 | } | |
926a56bf | 771 | |
bb7cd4e3 | 772 | int SSL_CTX_set_trust(SSL_CTX *s, int trust) |
0f113f3e MC |
773 | { |
774 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
775 | } | |
bb7cd4e3 DSH |
776 | |
777 | int SSL_set_trust(SSL *s, int trust) | |
0f113f3e MC |
778 | { |
779 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
780 | } | |
bb7cd4e3 | 781 | |
919ba009 VD |
782 | int SSL_set1_host(SSL *s, const char *hostname) |
783 | { | |
784 | return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); | |
785 | } | |
786 | ||
787 | int SSL_add1_host(SSL *s, const char *hostname) | |
788 | { | |
789 | return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0); | |
790 | } | |
791 | ||
792 | void SSL_set_hostflags(SSL *s, unsigned int flags) | |
793 | { | |
794 | X509_VERIFY_PARAM_set_hostflags(s->param, flags); | |
795 | } | |
796 | ||
4588cb44 | 797 | const char *SSL_get0_peername(SSL *s) |
919ba009 VD |
798 | { |
799 | return X509_VERIFY_PARAM_get0_peername(s->param); | |
800 | } | |
801 | ||
802 | int SSL_CTX_dane_enable(SSL_CTX *ctx) | |
803 | { | |
804 | return dane_ctx_enable(&ctx->dane); | |
805 | } | |
806 | ||
5ae4ceb9 VD |
807 | unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags) |
808 | { | |
809 | unsigned long orig = ctx->dane.flags; | |
810 | ||
811 | ctx->dane.flags |= flags; | |
812 | return orig; | |
813 | } | |
814 | ||
815 | unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags) | |
816 | { | |
817 | unsigned long orig = ctx->dane.flags; | |
818 | ||
819 | ctx->dane.flags &= ~flags; | |
820 | return orig; | |
821 | } | |
822 | ||
919ba009 VD |
823 | int SSL_dane_enable(SSL *s, const char *basedomain) |
824 | { | |
b9aec69a | 825 | SSL_DANE *dane = &s->dane; |
919ba009 VD |
826 | |
827 | if (s->ctx->dane.mdmax == 0) { | |
828 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED); | |
829 | return 0; | |
830 | } | |
831 | if (dane->trecs != NULL) { | |
832 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED); | |
833 | return 0; | |
834 | } | |
835 | ||
8d887efa VD |
836 | /* |
837 | * Default SNI name. This rejects empty names, while set1_host below | |
838 | * accepts them and disables host name checks. To avoid side-effects with | |
839 | * invalid input, set the SNI name first. | |
840 | */ | |
841 | if (s->tlsext_hostname == NULL) { | |
dccd20d1 | 842 | if (!SSL_set_tlsext_host_name(s, basedomain)) { |
8d887efa | 843 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); |
dccd20d1 | 844 | return -1; |
8d887efa VD |
845 | } |
846 | } | |
847 | ||
919ba009 VD |
848 | /* Primary RFC6125 reference identifier */ |
849 | if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) { | |
850 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); | |
851 | return -1; | |
852 | } | |
853 | ||
919ba009 VD |
854 | dane->mdpth = -1; |
855 | dane->pdpth = -1; | |
856 | dane->dctx = &s->ctx->dane; | |
857 | dane->trecs = sk_danetls_record_new_null(); | |
858 | ||
859 | if (dane->trecs == NULL) { | |
860 | SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE); | |
861 | return -1; | |
862 | } | |
863 | return 1; | |
864 | } | |
865 | ||
5ae4ceb9 VD |
866 | unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags) |
867 | { | |
868 | unsigned long orig = ssl->dane.flags; | |
869 | ||
870 | ssl->dane.flags |= flags; | |
871 | return orig; | |
872 | } | |
873 | ||
874 | unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags) | |
875 | { | |
876 | unsigned long orig = ssl->dane.flags; | |
877 | ||
878 | ssl->dane.flags &= ~flags; | |
879 | return orig; | |
880 | } | |
881 | ||
919ba009 VD |
882 | int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki) |
883 | { | |
b9aec69a | 884 | SSL_DANE *dane = &s->dane; |
919ba009 | 885 | |
c0a445a9 | 886 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
887 | return -1; |
888 | if (dane->mtlsa) { | |
889 | if (mcert) | |
890 | *mcert = dane->mcert; | |
891 | if (mspki) | |
892 | *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL; | |
893 | } | |
894 | return dane->mdpth; | |
895 | } | |
896 | ||
897 | int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector, | |
898 | uint8_t *mtype, unsigned const char **data, size_t *dlen) | |
899 | { | |
b9aec69a | 900 | SSL_DANE *dane = &s->dane; |
919ba009 | 901 | |
c0a445a9 | 902 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
903 | return -1; |
904 | if (dane->mtlsa) { | |
905 | if (usage) | |
906 | *usage = dane->mtlsa->usage; | |
907 | if (selector) | |
908 | *selector = dane->mtlsa->selector; | |
909 | if (mtype) | |
910 | *mtype = dane->mtlsa->mtype; | |
911 | if (data) | |
912 | *data = dane->mtlsa->data; | |
913 | if (dlen) | |
914 | *dlen = dane->mtlsa->dlen; | |
915 | } | |
916 | return dane->mdpth; | |
917 | } | |
918 | ||
b9aec69a | 919 | SSL_DANE *SSL_get0_dane(SSL *s) |
919ba009 VD |
920 | { |
921 | return &s->dane; | |
922 | } | |
923 | ||
924 | int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector, | |
925 | uint8_t mtype, unsigned char *data, size_t dlen) | |
926 | { | |
927 | return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen); | |
928 | } | |
929 | ||
a230b26e EK |
930 | int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype, |
931 | uint8_t ord) | |
919ba009 VD |
932 | { |
933 | return dane_mtype_set(&ctx->dane, md, mtype, ord); | |
934 | } | |
935 | ||
ccf11751 | 936 | int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) |
0f113f3e MC |
937 | { |
938 | return X509_VERIFY_PARAM_set1(ctx->param, vpm); | |
939 | } | |
ccf11751 DSH |
940 | |
941 | int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) | |
0f113f3e MC |
942 | { |
943 | return X509_VERIFY_PARAM_set1(ssl->param, vpm); | |
944 | } | |
ccf11751 | 945 | |
7af31968 | 946 | X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx) |
0f113f3e MC |
947 | { |
948 | return ctx->param; | |
949 | } | |
7af31968 DSH |
950 | |
951 | X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl) | |
0f113f3e MC |
952 | { |
953 | return ssl->param; | |
954 | } | |
7af31968 | 955 | |
a5ee80b9 | 956 | void SSL_certs_clear(SSL *s) |
0f113f3e MC |
957 | { |
958 | ssl_cert_clear_certs(s->cert); | |
959 | } | |
a5ee80b9 | 960 | |
4f43d0e7 | 961 | void SSL_free(SSL *s) |
0f113f3e MC |
962 | { |
963 | int i; | |
58964a49 | 964 | |
0f113f3e MC |
965 | if (s == NULL) |
966 | return; | |
e03ddfae | 967 | |
16203f7b | 968 | CRYPTO_atomic_add(&s->references, -1, &i, s->lock); |
f3f1cf84 | 969 | REF_PRINT_COUNT("SSL", s); |
0f113f3e MC |
970 | if (i > 0) |
971 | return; | |
f3f1cf84 | 972 | REF_ASSERT_ISNT(i < 0); |
d02b48c6 | 973 | |
222561fe | 974 | X509_VERIFY_PARAM_free(s->param); |
919ba009 | 975 | dane_final(&s->dane); |
0f113f3e MC |
976 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); |
977 | ||
2e7dc7cd MC |
978 | ssl_free_wbio_buffer(s); |
979 | ||
65e2d672 | 980 | BIO_free_all(s->wbio); |
325cfa85 | 981 | BIO_free_all(s->rbio); |
0f113f3e | 982 | |
25aaa98a | 983 | BUF_MEM_free(s->init_buf); |
0f113f3e MC |
984 | |
985 | /* add extra stuff */ | |
25aaa98a RS |
986 | sk_SSL_CIPHER_free(s->cipher_list); |
987 | sk_SSL_CIPHER_free(s->cipher_list_by_id); | |
0f113f3e MC |
988 | |
989 | /* Make the next call work :-) */ | |
990 | if (s->session != NULL) { | |
991 | ssl_clear_bad_session(s); | |
992 | SSL_SESSION_free(s->session); | |
993 | } | |
994 | ||
d31fb0b5 | 995 | clear_ciphers(s); |
d02b48c6 | 996 | |
e0e920b1 | 997 | ssl_cert_free(s->cert); |
0f113f3e | 998 | /* Free up if allocated */ |
d02b48c6 | 999 | |
b548a1f1 | 1000 | OPENSSL_free(s->tlsext_hostname); |
e0e920b1 | 1001 | SSL_CTX_free(s->initial_ctx); |
e481f9b9 | 1002 | #ifndef OPENSSL_NO_EC |
b548a1f1 RS |
1003 | OPENSSL_free(s->tlsext_ecpointformatlist); |
1004 | OPENSSL_free(s->tlsext_ellipticcurvelist); | |
a230b26e | 1005 | #endif /* OPENSSL_NO_EC */ |
222561fe | 1006 | sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free); |
3e41ac35 | 1007 | #ifndef OPENSSL_NO_OCSP |
25aaa98a | 1008 | sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); |
3e41ac35 | 1009 | #endif |
ed29e82a RP |
1010 | #ifndef OPENSSL_NO_CT |
1011 | SCT_LIST_free(s->scts); | |
1012 | OPENSSL_free(s->tlsext_scts); | |
1013 | #endif | |
b548a1f1 RS |
1014 | OPENSSL_free(s->tlsext_ocsp_resp); |
1015 | OPENSSL_free(s->alpn_client_proto_list); | |
0f113f3e | 1016 | |
222561fe | 1017 | sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free); |
0f113f3e | 1018 | |
696178ed DSH |
1019 | sk_X509_pop_free(s->verified_chain, X509_free); |
1020 | ||
0f113f3e MC |
1021 | if (s->method != NULL) |
1022 | s->method->ssl_free(s); | |
1023 | ||
f161995e | 1024 | RECORD_LAYER_release(&s->rlayer); |
33d23b87 | 1025 | |
e0e920b1 | 1026 | SSL_CTX_free(s->ctx); |
7c3908dd | 1027 | |
ff75a257 MC |
1028 | ASYNC_WAIT_CTX_free(s->waitctx); |
1029 | ||
e481f9b9 | 1030 | #if !defined(OPENSSL_NO_NEXTPROTONEG) |
b548a1f1 | 1031 | OPENSSL_free(s->next_proto_negotiated); |
ee2ffc27 BL |
1032 | #endif |
1033 | ||
e783bae2 | 1034 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 1035 | sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); |
0f113f3e MC |
1036 | #endif |
1037 | ||
16203f7b AG |
1038 | CRYPTO_THREAD_lock_free(s->lock); |
1039 | ||
0f113f3e MC |
1040 | OPENSSL_free(s); |
1041 | } | |
1042 | ||
65e2d672 | 1043 | void SSL_set0_rbio(SSL *s, BIO *rbio) |
3ffbe008 | 1044 | { |
65e2d672 | 1045 | BIO_free_all(s->rbio); |
3ffbe008 MC |
1046 | s->rbio = rbio; |
1047 | } | |
1048 | ||
65e2d672 | 1049 | void SSL_set0_wbio(SSL *s, BIO *wbio) |
0f113f3e MC |
1050 | { |
1051 | /* | |
1052 | * If the output buffering BIO is still in place, remove it | |
1053 | */ | |
2e7dc7cd MC |
1054 | if (s->bbio != NULL) |
1055 | s->wbio = BIO_pop(s->wbio); | |
1056 | ||
65e2d672 | 1057 | BIO_free_all(s->wbio); |
0f113f3e | 1058 | s->wbio = wbio; |
2e7dc7cd MC |
1059 | |
1060 | /* Re-attach |bbio| to the new |wbio|. */ | |
1061 | if (s->bbio != NULL) | |
1062 | s->wbio = BIO_push(s->bbio, s->wbio); | |
0f113f3e | 1063 | } |
d02b48c6 | 1064 | |
3ffbe008 MC |
1065 | void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) |
1066 | { | |
65e2d672 MC |
1067 | /* |
1068 | * For historical reasons, this function has many different cases in | |
1069 | * ownership handling. | |
1070 | */ | |
1071 | ||
1072 | /* If nothing has changed, do nothing */ | |
1073 | if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s)) | |
1074 | return; | |
1075 | ||
1076 | /* | |
1077 | * If the two arguments are equal then one fewer reference is granted by the | |
1078 | * caller than we want to take | |
1079 | */ | |
1080 | if (rbio != NULL && rbio == wbio) | |
1081 | BIO_up_ref(rbio); | |
1082 | ||
1083 | /* | |
1084 | * If only the wbio is changed only adopt one reference. | |
1085 | */ | |
1086 | if (rbio == SSL_get_rbio(s)) { | |
1087 | SSL_set0_wbio(s, wbio); | |
1088 | return; | |
1089 | } | |
1090 | /* | |
1091 | * There is an asymmetry here for historical reasons. If only the rbio is | |
1092 | * changed AND the rbio and wbio were originally different, then we only | |
1093 | * adopt one reference. | |
1094 | */ | |
1095 | if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) { | |
1096 | SSL_set0_rbio(s, rbio); | |
1097 | return; | |
1098 | } | |
1099 | ||
1100 | /* Otherwise, adopt both references. */ | |
1101 | SSL_set0_rbio(s, rbio); | |
1102 | SSL_set0_wbio(s, wbio); | |
3ffbe008 MC |
1103 | } |
1104 | ||
0821bcd4 | 1105 | BIO *SSL_get_rbio(const SSL *s) |
0f113f3e | 1106 | { |
2e7dc7cd | 1107 | return s->rbio; |
0f113f3e | 1108 | } |
d02b48c6 | 1109 | |
0821bcd4 | 1110 | BIO *SSL_get_wbio(const SSL *s) |
0f113f3e | 1111 | { |
2e7dc7cd MC |
1112 | if (s->bbio != NULL) { |
1113 | /* | |
1114 | * If |bbio| is active, the true caller-configured BIO is its | |
1115 | * |next_bio|. | |
1116 | */ | |
1117 | return BIO_next(s->bbio); | |
1118 | } | |
1119 | return s->wbio; | |
0f113f3e | 1120 | } |
d02b48c6 | 1121 | |
0821bcd4 | 1122 | int SSL_get_fd(const SSL *s) |
0f113f3e | 1123 | { |
2e7dc7cd | 1124 | return SSL_get_rfd(s); |
0f113f3e | 1125 | } |
24cbf3ef | 1126 | |
0821bcd4 | 1127 | int SSL_get_rfd(const SSL *s) |
0f113f3e MC |
1128 | { |
1129 | int ret = -1; | |
1130 | BIO *b, *r; | |
1131 | ||
1132 | b = SSL_get_rbio(s); | |
1133 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1134 | if (r != NULL) | |
1135 | BIO_get_fd(r, &ret); | |
1136 | return (ret); | |
1137 | } | |
d02b48c6 | 1138 | |
0821bcd4 | 1139 | int SSL_get_wfd(const SSL *s) |
0f113f3e MC |
1140 | { |
1141 | int ret = -1; | |
1142 | BIO *b, *r; | |
1143 | ||
1144 | b = SSL_get_wbio(s); | |
1145 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1146 | if (r != NULL) | |
1147 | BIO_get_fd(r, &ret); | |
1148 | return (ret); | |
1149 | } | |
24cbf3ef | 1150 | |
bc36ee62 | 1151 | #ifndef OPENSSL_NO_SOCK |
0f113f3e MC |
1152 | int SSL_set_fd(SSL *s, int fd) |
1153 | { | |
1154 | int ret = 0; | |
1155 | BIO *bio = NULL; | |
1156 | ||
1157 | bio = BIO_new(BIO_s_socket()); | |
1158 | ||
1159 | if (bio == NULL) { | |
1160 | SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB); | |
1161 | goto err; | |
1162 | } | |
1163 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
1164 | SSL_set_bio(s, bio, bio); | |
1165 | ret = 1; | |
1166 | err: | |
1167 | return (ret); | |
1168 | } | |
d02b48c6 | 1169 | |
0f113f3e MC |
1170 | int SSL_set_wfd(SSL *s, int fd) |
1171 | { | |
2e7dc7cd | 1172 | BIO *rbio = SSL_get_rbio(s); |
0f113f3e | 1173 | |
2e7dc7cd MC |
1174 | if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET |
1175 | || (int)BIO_get_fd(rbio, NULL) != fd) { | |
1176 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1177 | |
1178 | if (bio == NULL) { | |
1179 | SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1180 | return 0; |
0f113f3e MC |
1181 | } |
1182 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
65e2d672 | 1183 | SSL_set0_wbio(s, bio); |
2e7dc7cd | 1184 | } else { |
65e2d672 MC |
1185 | BIO_up_ref(rbio); |
1186 | SSL_set0_wbio(s, rbio); | |
2e7dc7cd MC |
1187 | } |
1188 | return 1; | |
0f113f3e MC |
1189 | } |
1190 | ||
1191 | int SSL_set_rfd(SSL *s, int fd) | |
1192 | { | |
2e7dc7cd | 1193 | BIO *wbio = SSL_get_wbio(s); |
0f113f3e | 1194 | |
2e7dc7cd MC |
1195 | if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET |
1196 | || ((int)BIO_get_fd(wbio, NULL) != fd)) { | |
1197 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1198 | |
1199 | if (bio == NULL) { | |
1200 | SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1201 | return 0; |
0f113f3e MC |
1202 | } |
1203 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
65e2d672 | 1204 | SSL_set0_rbio(s, bio); |
2e7dc7cd | 1205 | } else { |
65e2d672 MC |
1206 | BIO_up_ref(wbio); |
1207 | SSL_set0_rbio(s, wbio); | |
2e7dc7cd MC |
1208 | } |
1209 | ||
1210 | return 1; | |
0f113f3e MC |
1211 | } |
1212 | #endif | |
ca03109c BM |
1213 | |
1214 | /* return length of latest Finished message we sent, copy to 'buf' */ | |
0821bcd4 | 1215 | size_t SSL_get_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1216 | { |
1217 | size_t ret = 0; | |
1218 | ||
1219 | if (s->s3 != NULL) { | |
1220 | ret = s->s3->tmp.finish_md_len; | |
1221 | if (count > ret) | |
1222 | count = ret; | |
1223 | memcpy(buf, s->s3->tmp.finish_md, count); | |
1224 | } | |
1225 | return ret; | |
1226 | } | |
ca03109c BM |
1227 | |
1228 | /* return length of latest Finished message we expected, copy to 'buf' */ | |
0821bcd4 | 1229 | size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1230 | { |
1231 | size_t ret = 0; | |
ca03109c | 1232 | |
0f113f3e MC |
1233 | if (s->s3 != NULL) { |
1234 | ret = s->s3->tmp.peer_finish_md_len; | |
1235 | if (count > ret) | |
1236 | count = ret; | |
1237 | memcpy(buf, s->s3->tmp.peer_finish_md, count); | |
1238 | } | |
1239 | return ret; | |
1240 | } | |
ca03109c | 1241 | |
0821bcd4 | 1242 | int SSL_get_verify_mode(const SSL *s) |
0f113f3e MC |
1243 | { |
1244 | return (s->verify_mode); | |
1245 | } | |
d02b48c6 | 1246 | |
0821bcd4 | 1247 | int SSL_get_verify_depth(const SSL *s) |
0f113f3e MC |
1248 | { |
1249 | return X509_VERIFY_PARAM_get_depth(s->param); | |
1250 | } | |
7f89714e | 1251 | |
0f113f3e MC |
1252 | int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) { |
1253 | return (s->verify_callback); | |
1254 | } | |
d02b48c6 | 1255 | |
0821bcd4 | 1256 | int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) |
0f113f3e MC |
1257 | { |
1258 | return (ctx->verify_mode); | |
1259 | } | |
d02b48c6 | 1260 | |
0821bcd4 | 1261 | int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) |
0f113f3e MC |
1262 | { |
1263 | return X509_VERIFY_PARAM_get_depth(ctx->param); | |
1264 | } | |
1265 | ||
1266 | int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) { | |
1267 | return (ctx->default_verify_callback); | |
1268 | } | |
1269 | ||
1270 | void SSL_set_verify(SSL *s, int mode, | |
1271 | int (*callback) (int ok, X509_STORE_CTX *ctx)) | |
1272 | { | |
1273 | s->verify_mode = mode; | |
1274 | if (callback != NULL) | |
1275 | s->verify_callback = callback; | |
1276 | } | |
1277 | ||
1278 | void SSL_set_verify_depth(SSL *s, int depth) | |
1279 | { | |
1280 | X509_VERIFY_PARAM_set_depth(s->param, depth); | |
1281 | } | |
1282 | ||
1283 | void SSL_set_read_ahead(SSL *s, int yes) | |
1284 | { | |
52e1d7b1 | 1285 | RECORD_LAYER_set_read_ahead(&s->rlayer, yes); |
0f113f3e | 1286 | } |
d02b48c6 | 1287 | |
0821bcd4 | 1288 | int SSL_get_read_ahead(const SSL *s) |
0f113f3e | 1289 | { |
52e1d7b1 | 1290 | return RECORD_LAYER_get_read_ahead(&s->rlayer); |
0f113f3e | 1291 | } |
d02b48c6 | 1292 | |
0821bcd4 | 1293 | int SSL_pending(const SSL *s) |
0f113f3e | 1294 | { |
8b0e934a MC |
1295 | size_t pending = s->method->ssl_pending(s); |
1296 | ||
0f113f3e MC |
1297 | /* |
1298 | * SSL_pending cannot work properly if read-ahead is enabled | |
1299 | * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is | |
1300 | * impossible to fix since SSL_pending cannot report errors that may be | |
1301 | * observed while scanning the new data. (Note that SSL_pending() is | |
1302 | * often used as a boolean value, so we'd better not return -1.) | |
8b0e934a MC |
1303 | * |
1304 | * SSL_pending also cannot work properly if the value >INT_MAX. In that case | |
1305 | * we just return INT_MAX. | |
0f113f3e | 1306 | */ |
348240c6 | 1307 | return pending < INT_MAX ? (int)pending : INT_MAX; |
0f113f3e | 1308 | } |
d02b48c6 | 1309 | |
49580f25 MC |
1310 | int SSL_has_pending(const SSL *s) |
1311 | { | |
1312 | /* | |
1313 | * Similar to SSL_pending() but returns a 1 to indicate that we have | |
1314 | * unprocessed data available or 0 otherwise (as opposed to the number of | |
1315 | * bytes available). Unlike SSL_pending() this will take into account | |
1316 | * read_ahead data. A 1 return simply indicates that we have unprocessed | |
1317 | * data. That data may not result in any application data, or we may fail | |
1318 | * to parse the records for some reason. | |
1319 | */ | |
1320 | if (SSL_pending(s)) | |
1321 | return 1; | |
1322 | ||
1323 | return RECORD_LAYER_read_pending(&s->rlayer); | |
1324 | } | |
1325 | ||
0821bcd4 | 1326 | X509 *SSL_get_peer_certificate(const SSL *s) |
0f113f3e MC |
1327 | { |
1328 | X509 *r; | |
d02b48c6 | 1329 | |
0f113f3e MC |
1330 | if ((s == NULL) || (s->session == NULL)) |
1331 | r = NULL; | |
1332 | else | |
1333 | r = s->session->peer; | |
d02b48c6 | 1334 | |
0f113f3e MC |
1335 | if (r == NULL) |
1336 | return (r); | |
d02b48c6 | 1337 | |
05f0fb9f | 1338 | X509_up_ref(r); |
0f113f3e MC |
1339 | |
1340 | return (r); | |
1341 | } | |
d02b48c6 | 1342 | |
0821bcd4 | 1343 | STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) |
0f113f3e MC |
1344 | { |
1345 | STACK_OF(X509) *r; | |
1346 | ||
c34b0f99 | 1347 | if ((s == NULL) || (s->session == NULL)) |
0f113f3e MC |
1348 | r = NULL; |
1349 | else | |
c34b0f99 | 1350 | r = s->session->peer_chain; |
0f113f3e MC |
1351 | |
1352 | /* | |
1353 | * If we are a client, cert_chain includes the peer's own certificate; if | |
1354 | * we are a server, it does not. | |
1355 | */ | |
1356 | ||
1357 | return (r); | |
1358 | } | |
1359 | ||
1360 | /* | |
1361 | * Now in theory, since the calling process own 't' it should be safe to | |
1362 | * modify. We need to be able to read f without being hassled | |
1363 | */ | |
17dd65e6 | 1364 | int SSL_copy_session_id(SSL *t, const SSL *f) |
0f113f3e | 1365 | { |
16203f7b | 1366 | int i; |
0f113f3e | 1367 | /* Do we need to to SSL locking? */ |
61986d32 | 1368 | if (!SSL_set_session(t, SSL_get_session(f))) { |
17dd65e6 | 1369 | return 0; |
69f68237 | 1370 | } |
0f113f3e MC |
1371 | |
1372 | /* | |
87d9cafa | 1373 | * what if we are setup for one protocol version but want to talk another |
0f113f3e MC |
1374 | */ |
1375 | if (t->method != f->method) { | |
919ba009 VD |
1376 | t->method->ssl_free(t); |
1377 | t->method = f->method; | |
1378 | if (t->method->ssl_new(t) == 0) | |
1379 | return 0; | |
0f113f3e MC |
1380 | } |
1381 | ||
16203f7b | 1382 | CRYPTO_atomic_add(&f->cert->references, 1, &i, f->cert->lock); |
24a0d393 KR |
1383 | ssl_cert_free(t->cert); |
1384 | t->cert = f->cert; | |
348240c6 | 1385 | if (!SSL_set_session_id_context(t, f->sid_ctx, (int)f->sid_ctx_length)) { |
17dd65e6 | 1386 | return 0; |
69f68237 | 1387 | } |
17dd65e6 MC |
1388 | |
1389 | return 1; | |
0f113f3e | 1390 | } |
d02b48c6 | 1391 | |
58964a49 | 1392 | /* Fix this so it checks all the valid key/cert options */ |
0821bcd4 | 1393 | int SSL_CTX_check_private_key(const SSL_CTX *ctx) |
0f113f3e | 1394 | { |
a230b26e EK |
1395 | if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) { |
1396 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
0f113f3e MC |
1397 | return (0); |
1398 | } | |
1399 | if (ctx->cert->key->privatekey == NULL) { | |
a230b26e | 1400 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); |
0f113f3e MC |
1401 | return (0); |
1402 | } | |
1403 | return (X509_check_private_key | |
1404 | (ctx->cert->key->x509, ctx->cert->key->privatekey)); | |
1405 | } | |
d02b48c6 | 1406 | |
58964a49 | 1407 | /* Fix this function so that it takes an optional type parameter */ |
0821bcd4 | 1408 | int SSL_check_private_key(const SSL *ssl) |
0f113f3e MC |
1409 | { |
1410 | if (ssl == NULL) { | |
1411 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER); | |
1412 | return (0); | |
1413 | } | |
0f113f3e MC |
1414 | if (ssl->cert->key->x509 == NULL) { |
1415 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
1416 | return (0); | |
1417 | } | |
1418 | if (ssl->cert->key->privatekey == NULL) { | |
1419 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); | |
1420 | return (0); | |
1421 | } | |
1422 | return (X509_check_private_key(ssl->cert->key->x509, | |
1423 | ssl->cert->key->privatekey)); | |
1424 | } | |
d02b48c6 | 1425 | |
07bbc92c MC |
1426 | int SSL_waiting_for_async(SSL *s) |
1427 | { | |
e8aa8b6c | 1428 | if (s->job) |
82676094 MC |
1429 | return 1; |
1430 | ||
07bbc92c MC |
1431 | return 0; |
1432 | } | |
1433 | ||
ff75a257 | 1434 | int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds) |
f4da39d2 | 1435 | { |
ff75a257 MC |
1436 | ASYNC_WAIT_CTX *ctx = s->waitctx; |
1437 | ||
1438 | if (ctx == NULL) | |
1439 | return 0; | |
1440 | return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds); | |
1441 | } | |
f4da39d2 | 1442 | |
ff75a257 MC |
1443 | int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds, |
1444 | OSSL_ASYNC_FD *delfd, size_t *numdelfds) | |
1445 | { | |
1446 | ASYNC_WAIT_CTX *ctx = s->waitctx; | |
1447 | ||
1448 | if (ctx == NULL) | |
1449 | return 0; | |
1450 | return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd, | |
1451 | numdelfds); | |
f4da39d2 MC |
1452 | } |
1453 | ||
4f43d0e7 | 1454 | int SSL_accept(SSL *s) |
0f113f3e | 1455 | { |
c4c32155 | 1456 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1457 | /* Not properly initialized yet */ |
1458 | SSL_set_accept_state(s); | |
07bbc92c | 1459 | } |
add2f5ca MC |
1460 | |
1461 | return SSL_do_handshake(s); | |
0f113f3e | 1462 | } |
d02b48c6 | 1463 | |
4f43d0e7 | 1464 | int SSL_connect(SSL *s) |
0f113f3e | 1465 | { |
c4c32155 | 1466 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1467 | /* Not properly initialized yet */ |
1468 | SSL_set_connect_state(s); | |
add2f5ca | 1469 | } |
b31b04d9 | 1470 | |
add2f5ca | 1471 | return SSL_do_handshake(s); |
0f113f3e | 1472 | } |
d02b48c6 | 1473 | |
0821bcd4 | 1474 | long SSL_get_default_timeout(const SSL *s) |
0f113f3e MC |
1475 | { |
1476 | return (s->method->get_timeout()); | |
1477 | } | |
1478 | ||
7fecbf6f | 1479 | static int ssl_start_async_job(SSL *s, struct ssl_async_args *args, |
a230b26e EK |
1480 | int (*func) (void *)) |
1481 | { | |
add2f5ca | 1482 | int ret; |
ff75a257 MC |
1483 | if (s->waitctx == NULL) { |
1484 | s->waitctx = ASYNC_WAIT_CTX_new(); | |
1485 | if (s->waitctx == NULL) | |
1486 | return -1; | |
1487 | } | |
e8aa8b6c | 1488 | switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args, |
a230b26e | 1489 | sizeof(struct ssl_async_args))) { |
add2f5ca MC |
1490 | case ASYNC_ERR: |
1491 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1492 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC); |
add2f5ca MC |
1493 | return -1; |
1494 | case ASYNC_PAUSE: | |
1495 | s->rwstate = SSL_ASYNC_PAUSED; | |
1496 | return -1; | |
fc7f190c MC |
1497 | case ASYNC_NO_JOBS: |
1498 | s->rwstate = SSL_ASYNC_NO_JOBS; | |
1499 | return -1; | |
add2f5ca MC |
1500 | case ASYNC_FINISH: |
1501 | s->job = NULL; | |
1502 | return ret; | |
1503 | default: | |
1504 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1505 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR); |
add2f5ca MC |
1506 | /* Shouldn't happen */ |
1507 | return -1; | |
1508 | } | |
1509 | } | |
07bbc92c | 1510 | |
add2f5ca | 1511 | static int ssl_io_intern(void *vargs) |
07bbc92c MC |
1512 | { |
1513 | struct ssl_async_args *args; | |
1514 | SSL *s; | |
1515 | void *buf; | |
348240c6 | 1516 | size_t num; |
07bbc92c MC |
1517 | |
1518 | args = (struct ssl_async_args *)vargs; | |
1519 | s = args->s; | |
1520 | buf = args->buf; | |
1521 | num = args->num; | |
ec447924 MC |
1522 | switch (args->type) { |
1523 | case READFUNC: | |
7ee8627f | 1524 | return args->f.func_read(s, buf, num, &s->asyncrw); |
ec447924 | 1525 | case WRITEFUNC: |
7ee8627f | 1526 | return args->f.func_write(s, buf, num, &s->asyncrw); |
ec447924 MC |
1527 | case OTHERFUNC: |
1528 | return args->f.func_other(s); | |
1529 | } | |
1530 | return -1; | |
07bbc92c MC |
1531 | } |
1532 | ||
0f113f3e | 1533 | int SSL_read(SSL *s, void *buf, int num) |
eda75751 MC |
1534 | { |
1535 | int ret; | |
54105ddd | 1536 | size_t readbytes; |
eda75751 MC |
1537 | |
1538 | if (num < 0) { | |
1539 | SSLerr(SSL_F_SSL_READ, SSL_R_BAD_LENGTH); | |
1540 | return -1; | |
1541 | } | |
1542 | ||
54105ddd | 1543 | ret = SSL_read_ex(s, buf, (size_t)num, &readbytes); |
eda75751 MC |
1544 | |
1545 | /* | |
1546 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1547 | * <= INT_MAX | |
1548 | */ | |
1549 | if (ret > 0) | |
54105ddd | 1550 | ret = (int)readbytes; |
eda75751 MC |
1551 | |
1552 | return ret; | |
1553 | } | |
1554 | ||
54105ddd | 1555 | int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes) |
0f113f3e | 1556 | { |
c4c32155 | 1557 | if (s->handshake_func == NULL) { |
eda75751 | 1558 | SSLerr(SSL_F_SSL_READ_EX, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1559 | return -1; |
1560 | } | |
1561 | ||
1562 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
1563 | s->rwstate = SSL_NOTHING; | |
1564 | return (0); | |
1565 | } | |
07bbc92c | 1566 | |
e8aa8b6c | 1567 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1568 | struct ssl_async_args args; |
eda75751 | 1569 | int ret; |
add2f5ca MC |
1570 | |
1571 | args.s = s; | |
1572 | args.buf = buf; | |
1573 | args.num = num; | |
ec447924 MC |
1574 | args.type = READFUNC; |
1575 | args.f.func_read = s->method->ssl_read; | |
add2f5ca | 1576 | |
eda75751 | 1577 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
54105ddd | 1578 | *readbytes = s->asyncrw; |
eda75751 | 1579 | return ret; |
07bbc92c | 1580 | } else { |
54105ddd | 1581 | return s->method->ssl_read(s, buf, num, readbytes); |
07bbc92c | 1582 | } |
0f113f3e MC |
1583 | } |
1584 | ||
1585 | int SSL_peek(SSL *s, void *buf, int num) | |
eda75751 MC |
1586 | { |
1587 | int ret; | |
54105ddd | 1588 | size_t readbytes; |
eda75751 MC |
1589 | |
1590 | if (num < 0) { | |
1591 | SSLerr(SSL_F_SSL_PEEK, SSL_R_BAD_LENGTH); | |
1592 | return -1; | |
1593 | } | |
1594 | ||
54105ddd | 1595 | ret = SSL_peek_ex(s, buf, (size_t)num, &readbytes); |
eda75751 MC |
1596 | |
1597 | /* | |
1598 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1599 | * <= INT_MAX | |
1600 | */ | |
1601 | if (ret > 0) | |
54105ddd | 1602 | ret = (int)readbytes; |
eda75751 MC |
1603 | |
1604 | return ret; | |
1605 | } | |
1606 | ||
54105ddd | 1607 | int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes) |
0f113f3e | 1608 | { |
c4c32155 | 1609 | if (s->handshake_func == NULL) { |
eda75751 | 1610 | SSLerr(SSL_F_SSL_PEEK_EX, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1611 | return -1; |
1612 | } | |
1613 | ||
1614 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
1615 | return (0); | |
1616 | } | |
e8aa8b6c | 1617 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1618 | struct ssl_async_args args; |
eda75751 | 1619 | int ret; |
0f113f3e | 1620 | |
add2f5ca MC |
1621 | args.s = s; |
1622 | args.buf = buf; | |
1623 | args.num = num; | |
ec447924 MC |
1624 | args.type = READFUNC; |
1625 | args.f.func_read = s->method->ssl_peek; | |
07bbc92c | 1626 | |
eda75751 | 1627 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
54105ddd | 1628 | *readbytes = s->asyncrw; |
eda75751 | 1629 | return ret; |
add2f5ca | 1630 | } else { |
54105ddd | 1631 | return s->method->ssl_peek(s, buf, num, readbytes); |
add2f5ca | 1632 | } |
07bbc92c MC |
1633 | } |
1634 | ||
0f113f3e | 1635 | int SSL_write(SSL *s, const void *buf, int num) |
7ee8627f MC |
1636 | { |
1637 | int ret; | |
1638 | size_t written; | |
1639 | ||
1640 | if (num < 0) { | |
1641 | SSLerr(SSL_F_SSL_WRITE, SSL_R_BAD_LENGTH); | |
1642 | return -1; | |
1643 | } | |
1644 | ||
1645 | ret = SSL_write_ex(s, buf, (size_t)num, &written); | |
1646 | ||
1647 | /* | |
1648 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1649 | * <= INT_MAX | |
1650 | */ | |
1651 | if (ret > 0) | |
1652 | ret = (int)written; | |
1653 | ||
1654 | return ret; | |
1655 | } | |
1656 | ||
1657 | int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written) | |
0f113f3e | 1658 | { |
c4c32155 | 1659 | if (s->handshake_func == NULL) { |
7ee8627f | 1660 | SSLerr(SSL_F_SSL_WRITE_EX, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1661 | return -1; |
1662 | } | |
1663 | ||
1664 | if (s->shutdown & SSL_SENT_SHUTDOWN) { | |
1665 | s->rwstate = SSL_NOTHING; | |
7ee8627f | 1666 | SSLerr(SSL_F_SSL_WRITE_EX, SSL_R_PROTOCOL_IS_SHUTDOWN); |
0f113f3e MC |
1667 | return (-1); |
1668 | } | |
07bbc92c | 1669 | |
e8aa8b6c | 1670 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
7ee8627f | 1671 | int ret; |
add2f5ca MC |
1672 | struct ssl_async_args args; |
1673 | ||
1674 | args.s = s; | |
1675 | args.buf = (void *)buf; | |
1676 | args.num = num; | |
ec447924 MC |
1677 | args.type = WRITEFUNC; |
1678 | args.f.func_write = s->method->ssl_write; | |
add2f5ca | 1679 | |
7ee8627f MC |
1680 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
1681 | *written = s->asyncrw; | |
1682 | return ret; | |
07bbc92c | 1683 | } else { |
7ee8627f | 1684 | return s->method->ssl_write(s, buf, num, written); |
07bbc92c | 1685 | } |
0f113f3e | 1686 | } |
d02b48c6 | 1687 | |
4f43d0e7 | 1688 | int SSL_shutdown(SSL *s) |
0f113f3e MC |
1689 | { |
1690 | /* | |
1691 | * Note that this function behaves differently from what one might | |
1692 | * expect. Return values are 0 for no success (yet), 1 for success; but | |
1693 | * calling it once is usually not enough, even if blocking I/O is used | |
1694 | * (see ssl3_shutdown). | |
1695 | */ | |
1696 | ||
c4c32155 | 1697 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1698 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); |
1699 | return -1; | |
1700 | } | |
1701 | ||
64f9f406 | 1702 | if (!SSL_in_init(s)) { |
e8aa8b6c | 1703 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
64f9f406 | 1704 | struct ssl_async_args args; |
ec447924 | 1705 | |
64f9f406 MC |
1706 | args.s = s; |
1707 | args.type = OTHERFUNC; | |
1708 | args.f.func_other = s->method->ssl_shutdown; | |
ec447924 | 1709 | |
64f9f406 MC |
1710 | return ssl_start_async_job(s, &args, ssl_io_intern); |
1711 | } else { | |
1712 | return s->method->ssl_shutdown(s); | |
1713 | } | |
ec447924 | 1714 | } else { |
64f9f406 MC |
1715 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT); |
1716 | return -1; | |
ec447924 | 1717 | } |
0f113f3e | 1718 | } |
d02b48c6 | 1719 | |
4f43d0e7 | 1720 | int SSL_renegotiate(SSL *s) |
0f113f3e MC |
1721 | { |
1722 | if (s->renegotiate == 0) | |
1723 | s->renegotiate = 1; | |
44959ee4 | 1724 | |
0f113f3e | 1725 | s->new_session = 1; |
44959ee4 | 1726 | |
0f113f3e MC |
1727 | return (s->method->ssl_renegotiate(s)); |
1728 | } | |
d02b48c6 | 1729 | |
44959ee4 | 1730 | int SSL_renegotiate_abbreviated(SSL *s) |
0f113f3e MC |
1731 | { |
1732 | if (s->renegotiate == 0) | |
1733 | s->renegotiate = 1; | |
c519e89f | 1734 | |
0f113f3e | 1735 | s->new_session = 0; |
c519e89f | 1736 | |
0f113f3e MC |
1737 | return (s->method->ssl_renegotiate(s)); |
1738 | } | |
44959ee4 | 1739 | |
6b0e9fac | 1740 | int SSL_renegotiate_pending(SSL *s) |
0f113f3e MC |
1741 | { |
1742 | /* | |
1743 | * becomes true when negotiation is requested; false again once a | |
1744 | * handshake has finished | |
1745 | */ | |
1746 | return (s->renegotiate != 0); | |
1747 | } | |
1748 | ||
1749 | long SSL_ctrl(SSL *s, int cmd, long larg, void *parg) | |
1750 | { | |
1751 | long l; | |
1752 | ||
1753 | switch (cmd) { | |
1754 | case SSL_CTRL_GET_READ_AHEAD: | |
52e1d7b1 | 1755 | return (RECORD_LAYER_get_read_ahead(&s->rlayer)); |
0f113f3e | 1756 | case SSL_CTRL_SET_READ_AHEAD: |
52e1d7b1 MC |
1757 | l = RECORD_LAYER_get_read_ahead(&s->rlayer); |
1758 | RECORD_LAYER_set_read_ahead(&s->rlayer, larg); | |
0f113f3e MC |
1759 | return (l); |
1760 | ||
1761 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
1762 | s->msg_callback_arg = parg; | |
1763 | return 1; | |
1764 | ||
0f113f3e MC |
1765 | case SSL_CTRL_MODE: |
1766 | return (s->mode |= larg); | |
1767 | case SSL_CTRL_CLEAR_MODE: | |
1768 | return (s->mode &= ~larg); | |
1769 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
348240c6 | 1770 | return (long)(s->max_cert_list); |
0f113f3e | 1771 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
1772 | if (larg < 0) |
1773 | return 0; | |
1774 | l = (long)s->max_cert_list; | |
1775 | s->max_cert_list = (size_t)larg; | |
1776 | return l; | |
0f113f3e MC |
1777 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: |
1778 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
1779 | return 0; | |
1780 | s->max_send_fragment = larg; | |
d102d9df MC |
1781 | if (s->max_send_fragment < s->split_send_fragment) |
1782 | s->split_send_fragment = s->max_send_fragment; | |
1783 | return 1; | |
1784 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: | |
7ee8627f | 1785 | if ((size_t)larg > s->max_send_fragment || larg == 0) |
d102d9df MC |
1786 | return 0; |
1787 | s->split_send_fragment = larg; | |
0f113f3e | 1788 | return 1; |
d102d9df MC |
1789 | case SSL_CTRL_SET_MAX_PIPELINES: |
1790 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
1791 | return 0; | |
1792 | s->max_pipelines = larg; | |
94777c9c MC |
1793 | if (larg > 1) |
1794 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
07077415 | 1795 | return 1; |
0f113f3e MC |
1796 | case SSL_CTRL_GET_RI_SUPPORT: |
1797 | if (s->s3) | |
1798 | return s->s3->send_connection_binding; | |
1799 | else | |
1800 | return 0; | |
1801 | case SSL_CTRL_CERT_FLAGS: | |
1802 | return (s->cert->cert_flags |= larg); | |
1803 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
1804 | return (s->cert->cert_flags &= ~larg); | |
1805 | ||
1806 | case SSL_CTRL_GET_RAW_CIPHERLIST: | |
1807 | if (parg) { | |
76106e60 | 1808 | if (s->s3->tmp.ciphers_raw == NULL) |
0f113f3e | 1809 | return 0; |
76106e60 DSH |
1810 | *(unsigned char **)parg = s->s3->tmp.ciphers_raw; |
1811 | return (int)s->s3->tmp.ciphers_rawlen; | |
e9fa092e EK |
1812 | } else { |
1813 | return TLS_CIPHER_LEN; | |
1814 | } | |
c5364614 | 1815 | case SSL_CTRL_GET_EXTMS_SUPPORT: |
024f543c | 1816 | if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s)) |
a230b26e | 1817 | return -1; |
dccd20d1 | 1818 | if (s->session->flags & SSL_SESS_FLAG_EXTMS) |
c5364614 DSH |
1819 | return 1; |
1820 | else | |
1821 | return 0; | |
7946ab33 | 1822 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
4fa52141 VD |
1823 | return ssl_set_version_bound(s->ctx->method->version, (int)larg, |
1824 | &s->min_proto_version); | |
7946ab33 | 1825 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
4fa52141 VD |
1826 | return ssl_set_version_bound(s->ctx->method->version, (int)larg, |
1827 | &s->max_proto_version); | |
0f113f3e MC |
1828 | default: |
1829 | return (s->method->ssl_ctrl(s, cmd, larg, parg)); | |
1830 | } | |
1831 | } | |
1832 | ||
1833 | long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
1834 | { | |
1835 | switch (cmd) { | |
1836 | case SSL_CTRL_SET_MSG_CALLBACK: | |
1837 | s->msg_callback = (void (*) | |
1838 | (int write_p, int version, int content_type, | |
1839 | const void *buf, size_t len, SSL *ssl, | |
1840 | void *arg))(fp); | |
1841 | return 1; | |
1842 | ||
1843 | default: | |
1844 | return (s->method->ssl_callback_ctrl(s, cmd, fp)); | |
1845 | } | |
1846 | } | |
d3442bc7 | 1847 | |
3c1d6bbc | 1848 | LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx) |
0f113f3e MC |
1849 | { |
1850 | return ctx->sessions; | |
1851 | } | |
1852 | ||
1853 | long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
1854 | { | |
1855 | long l; | |
1856 | /* For some cases with ctx == NULL perform syntax checks */ | |
1857 | if (ctx == NULL) { | |
1858 | switch (cmd) { | |
14536c8c | 1859 | #ifndef OPENSSL_NO_EC |
0f113f3e MC |
1860 | case SSL_CTRL_SET_CURVES_LIST: |
1861 | return tls1_set_curves_list(NULL, NULL, parg); | |
1862 | #endif | |
1863 | case SSL_CTRL_SET_SIGALGS_LIST: | |
1864 | case SSL_CTRL_SET_CLIENT_SIGALGS_LIST: | |
1865 | return tls1_set_sigalgs_list(NULL, parg, 0); | |
1866 | default: | |
1867 | return 0; | |
1868 | } | |
1869 | } | |
1870 | ||
1871 | switch (cmd) { | |
1872 | case SSL_CTRL_GET_READ_AHEAD: | |
1873 | return (ctx->read_ahead); | |
1874 | case SSL_CTRL_SET_READ_AHEAD: | |
1875 | l = ctx->read_ahead; | |
1876 | ctx->read_ahead = larg; | |
1877 | return (l); | |
1878 | ||
1879 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
1880 | ctx->msg_callback_arg = parg; | |
1881 | return 1; | |
1882 | ||
1883 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
348240c6 | 1884 | return (long)(ctx->max_cert_list); |
0f113f3e | 1885 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
1886 | if (larg < 0) |
1887 | return 0; | |
1888 | l = (long)ctx->max_cert_list; | |
1889 | ctx->max_cert_list = (size_t)larg; | |
1890 | return l; | |
0f113f3e MC |
1891 | |
1892 | case SSL_CTRL_SET_SESS_CACHE_SIZE: | |
348240c6 MC |
1893 | if (larg < 0) |
1894 | return 0; | |
1895 | l = (long)ctx->session_cache_size; | |
1896 | ctx->session_cache_size = (size_t)larg; | |
1897 | return l; | |
0f113f3e | 1898 | case SSL_CTRL_GET_SESS_CACHE_SIZE: |
348240c6 | 1899 | return (long)(ctx->session_cache_size); |
0f113f3e MC |
1900 | case SSL_CTRL_SET_SESS_CACHE_MODE: |
1901 | l = ctx->session_cache_mode; | |
1902 | ctx->session_cache_mode = larg; | |
1903 | return (l); | |
1904 | case SSL_CTRL_GET_SESS_CACHE_MODE: | |
1905 | return (ctx->session_cache_mode); | |
1906 | ||
1907 | case SSL_CTRL_SESS_NUMBER: | |
1908 | return (lh_SSL_SESSION_num_items(ctx->sessions)); | |
1909 | case SSL_CTRL_SESS_CONNECT: | |
1910 | return (ctx->stats.sess_connect); | |
1911 | case SSL_CTRL_SESS_CONNECT_GOOD: | |
1912 | return (ctx->stats.sess_connect_good); | |
1913 | case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: | |
1914 | return (ctx->stats.sess_connect_renegotiate); | |
1915 | case SSL_CTRL_SESS_ACCEPT: | |
1916 | return (ctx->stats.sess_accept); | |
1917 | case SSL_CTRL_SESS_ACCEPT_GOOD: | |
1918 | return (ctx->stats.sess_accept_good); | |
1919 | case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: | |
1920 | return (ctx->stats.sess_accept_renegotiate); | |
1921 | case SSL_CTRL_SESS_HIT: | |
1922 | return (ctx->stats.sess_hit); | |
1923 | case SSL_CTRL_SESS_CB_HIT: | |
1924 | return (ctx->stats.sess_cb_hit); | |
1925 | case SSL_CTRL_SESS_MISSES: | |
1926 | return (ctx->stats.sess_miss); | |
1927 | case SSL_CTRL_SESS_TIMEOUTS: | |
1928 | return (ctx->stats.sess_timeout); | |
1929 | case SSL_CTRL_SESS_CACHE_FULL: | |
1930 | return (ctx->stats.sess_cache_full); | |
0f113f3e MC |
1931 | case SSL_CTRL_MODE: |
1932 | return (ctx->mode |= larg); | |
1933 | case SSL_CTRL_CLEAR_MODE: | |
1934 | return (ctx->mode &= ~larg); | |
1935 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
1936 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
1937 | return 0; | |
1938 | ctx->max_send_fragment = larg; | |
d102d9df | 1939 | if (ctx->max_send_fragment < ctx->split_send_fragment) |
bfb155c1 | 1940 | ctx->split_send_fragment = ctx->max_send_fragment; |
0f113f3e | 1941 | return 1; |
d102d9df | 1942 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: |
7ee8627f | 1943 | if ((size_t)larg > ctx->max_send_fragment || larg == 0) |
d102d9df MC |
1944 | return 0; |
1945 | ctx->split_send_fragment = larg; | |
1946 | return 1; | |
1947 | case SSL_CTRL_SET_MAX_PIPELINES: | |
1948 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
1949 | return 0; | |
1950 | ctx->max_pipelines = larg; | |
07077415 | 1951 | return 1; |
0f113f3e MC |
1952 | case SSL_CTRL_CERT_FLAGS: |
1953 | return (ctx->cert->cert_flags |= larg); | |
1954 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
1955 | return (ctx->cert->cert_flags &= ~larg); | |
7946ab33 | 1956 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
4fa52141 VD |
1957 | return ssl_set_version_bound(ctx->method->version, (int)larg, |
1958 | &ctx->min_proto_version); | |
7946ab33 | 1959 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
4fa52141 VD |
1960 | return ssl_set_version_bound(ctx->method->version, (int)larg, |
1961 | &ctx->max_proto_version); | |
0f113f3e MC |
1962 | default: |
1963 | return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg)); | |
1964 | } | |
1965 | } | |
1966 | ||
1967 | long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
1968 | { | |
1969 | switch (cmd) { | |
1970 | case SSL_CTRL_SET_MSG_CALLBACK: | |
1971 | ctx->msg_callback = (void (*) | |
1972 | (int write_p, int version, int content_type, | |
1973 | const void *buf, size_t len, SSL *ssl, | |
1974 | void *arg))(fp); | |
1975 | return 1; | |
1976 | ||
1977 | default: | |
1978 | return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp)); | |
1979 | } | |
1980 | } | |
d3442bc7 | 1981 | |
ccd86b68 | 1982 | int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) |
0f113f3e | 1983 | { |
90d9e49a DSH |
1984 | if (a->id > b->id) |
1985 | return 1; | |
1986 | if (a->id < b->id) | |
1987 | return -1; | |
1988 | return 0; | |
0f113f3e MC |
1989 | } |
1990 | ||
1991 | int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, | |
1992 | const SSL_CIPHER *const *bp) | |
1993 | { | |
90d9e49a DSH |
1994 | if ((*ap)->id > (*bp)->id) |
1995 | return 1; | |
1996 | if ((*ap)->id < (*bp)->id) | |
1997 | return -1; | |
1998 | return 0; | |
0f113f3e | 1999 | } |
d02b48c6 | 2000 | |
4f43d0e7 | 2001 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2002 | * preference */ |
0821bcd4 | 2003 | STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) |
0f113f3e MC |
2004 | { |
2005 | if (s != NULL) { | |
2006 | if (s->cipher_list != NULL) { | |
2007 | return (s->cipher_list); | |
2008 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { | |
2009 | return (s->ctx->cipher_list); | |
2010 | } | |
2011 | } | |
2012 | return (NULL); | |
2013 | } | |
2014 | ||
831eef2c NM |
2015 | STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s) |
2016 | { | |
2017 | if ((s == NULL) || (s->session == NULL) || !s->server) | |
2018 | return NULL; | |
2019 | return s->session->ciphers; | |
2020 | } | |
2021 | ||
8b8e5bed | 2022 | STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s) |
0f113f3e MC |
2023 | { |
2024 | STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers; | |
2025 | int i; | |
2026 | ciphers = SSL_get_ciphers(s); | |
2027 | if (!ciphers) | |
2028 | return NULL; | |
2029 | ssl_set_client_disabled(s); | |
2030 | for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { | |
2031 | const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i); | |
2032 | if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) { | |
2033 | if (!sk) | |
2034 | sk = sk_SSL_CIPHER_new_null(); | |
2035 | if (!sk) | |
2036 | return NULL; | |
2037 | if (!sk_SSL_CIPHER_push(sk, c)) { | |
2038 | sk_SSL_CIPHER_free(sk); | |
2039 | return NULL; | |
2040 | } | |
2041 | } | |
2042 | } | |
2043 | return sk; | |
2044 | } | |
8b8e5bed | 2045 | |
4f43d0e7 | 2046 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2047 | * algorithm id */ |
f73e07cf | 2048 | STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) |
0f113f3e MC |
2049 | { |
2050 | if (s != NULL) { | |
2051 | if (s->cipher_list_by_id != NULL) { | |
2052 | return (s->cipher_list_by_id); | |
2053 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) { | |
2054 | return (s->ctx->cipher_list_by_id); | |
2055 | } | |
2056 | } | |
2057 | return (NULL); | |
2058 | } | |
d02b48c6 | 2059 | |
4f43d0e7 | 2060 | /** The old interface to get the same thing as SSL_get_ciphers() */ |
0f113f3e MC |
2061 | const char *SSL_get_cipher_list(const SSL *s, int n) |
2062 | { | |
4a640fb6 | 2063 | const SSL_CIPHER *c; |
0f113f3e MC |
2064 | STACK_OF(SSL_CIPHER) *sk; |
2065 | ||
2066 | if (s == NULL) | |
2067 | return (NULL); | |
2068 | sk = SSL_get_ciphers(s); | |
2069 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) | |
2070 | return (NULL); | |
2071 | c = sk_SSL_CIPHER_value(sk, n); | |
2072 | if (c == NULL) | |
2073 | return (NULL); | |
2074 | return (c->name); | |
2075 | } | |
d02b48c6 | 2076 | |
9d5ac953 KY |
2077 | /** return a STACK of the ciphers available for the SSL_CTX and in order of |
2078 | * preference */ | |
2079 | STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx) | |
2080 | { | |
2081 | if (ctx != NULL) | |
2082 | return ctx->cipher_list; | |
2083 | return NULL; | |
2084 | } | |
2085 | ||
25f923dd | 2086 | /** specify the ciphers to be used by default by the SSL_CTX */ |
018e57c7 | 2087 | int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) |
0f113f3e MC |
2088 | { |
2089 | STACK_OF(SSL_CIPHER) *sk; | |
2090 | ||
2091 | sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, | |
2092 | &ctx->cipher_list_by_id, str, ctx->cert); | |
2093 | /* | |
2094 | * ssl_create_cipher_list may return an empty stack if it was unable to | |
2095 | * find a cipher matching the given rule string (for example if the rule | |
2096 | * string specifies a cipher which has been disabled). This is not an | |
2097 | * error as far as ssl_create_cipher_list is concerned, and hence | |
2098 | * ctx->cipher_list and ctx->cipher_list_by_id has been updated. | |
2099 | */ | |
2100 | if (sk == NULL) | |
2101 | return 0; | |
2102 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2103 | SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2104 | return 0; | |
2105 | } | |
2106 | return 1; | |
2107 | } | |
d02b48c6 | 2108 | |
4f43d0e7 | 2109 | /** specify the ciphers to be used by the SSL */ |
0f113f3e MC |
2110 | int SSL_set_cipher_list(SSL *s, const char *str) |
2111 | { | |
2112 | STACK_OF(SSL_CIPHER) *sk; | |
2113 | ||
2114 | sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, | |
2115 | &s->cipher_list_by_id, str, s->cert); | |
2116 | /* see comment in SSL_CTX_set_cipher_list */ | |
2117 | if (sk == NULL) | |
2118 | return 0; | |
2119 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2120 | SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2121 | return 0; | |
2122 | } | |
2123 | return 1; | |
2124 | } | |
d02b48c6 | 2125 | |
0f113f3e MC |
2126 | char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len) |
2127 | { | |
2128 | char *p; | |
2129 | STACK_OF(SSL_CIPHER) *sk; | |
4a640fb6 | 2130 | const SSL_CIPHER *c; |
0f113f3e MC |
2131 | int i; |
2132 | ||
2133 | if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2)) | |
2134 | return (NULL); | |
2135 | ||
2136 | p = buf; | |
2137 | sk = s->session->ciphers; | |
2138 | ||
2139 | if (sk_SSL_CIPHER_num(sk) == 0) | |
2140 | return NULL; | |
2141 | ||
2142 | for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { | |
2143 | int n; | |
2144 | ||
2145 | c = sk_SSL_CIPHER_value(sk, i); | |
2146 | n = strlen(c->name); | |
2147 | if (n + 1 > len) { | |
2148 | if (p != buf) | |
2149 | --p; | |
2150 | *p = '\0'; | |
2151 | return buf; | |
2152 | } | |
a89c9a0d | 2153 | memcpy(p, c->name, n + 1); |
0f113f3e MC |
2154 | p += n; |
2155 | *(p++) = ':'; | |
2156 | len -= n + 1; | |
2157 | } | |
2158 | p[-1] = '\0'; | |
2159 | return (buf); | |
2160 | } | |
2161 | ||
52b8dad8 | 2162 | /** return a servername extension value if provided in Client Hello, or NULL. |
f1fd4544 | 2163 | * So far, only host_name types are defined (RFC 3546). |
ed3883d2 BM |
2164 | */ |
2165 | ||
f1fd4544 | 2166 | const char *SSL_get_servername(const SSL *s, const int type) |
0f113f3e MC |
2167 | { |
2168 | if (type != TLSEXT_NAMETYPE_host_name) | |
2169 | return NULL; | |
a13c20f6 | 2170 | |
0f113f3e MC |
2171 | return s->session && !s->tlsext_hostname ? |
2172 | s->session->tlsext_hostname : s->tlsext_hostname; | |
2173 | } | |
ed3883d2 | 2174 | |
f1fd4544 | 2175 | int SSL_get_servername_type(const SSL *s) |
0f113f3e MC |
2176 | { |
2177 | if (s->session | |
2178 | && (!s->tlsext_hostname ? s->session-> | |
2179 | tlsext_hostname : s->tlsext_hostname)) | |
2180 | return TLSEXT_NAMETYPE_host_name; | |
2181 | return -1; | |
2182 | } | |
ee2ffc27 | 2183 | |
0f113f3e MC |
2184 | /* |
2185 | * SSL_select_next_proto implements the standard protocol selection. It is | |
ee2ffc27 | 2186 | * expected that this function is called from the callback set by |
0f113f3e MC |
2187 | * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a |
2188 | * vector of 8-bit, length prefixed byte strings. The length byte itself is | |
2189 | * not included in the length. A byte string of length 0 is invalid. No byte | |
2190 | * string may be truncated. The current, but experimental algorithm for | |
2191 | * selecting the protocol is: 1) If the server doesn't support NPN then this | |
2192 | * is indicated to the callback. In this case, the client application has to | |
2193 | * abort the connection or have a default application level protocol. 2) If | |
2194 | * the server supports NPN, but advertises an empty list then the client | |
f430ba31 | 2195 | * selects the first protocol in its list, but indicates via the API that this |
0f113f3e MC |
2196 | * fallback case was enacted. 3) Otherwise, the client finds the first |
2197 | * protocol in the server's list that it supports and selects this protocol. | |
2198 | * This is because it's assumed that the server has better information about | |
2199 | * which protocol a client should use. 4) If the client doesn't support any | |
2200 | * of the server's advertised protocols, then this is treated the same as | |
2201 | * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was | |
2202 | * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. | |
ee2ffc27 | 2203 | */ |
0f113f3e MC |
2204 | int SSL_select_next_proto(unsigned char **out, unsigned char *outlen, |
2205 | const unsigned char *server, | |
2206 | unsigned int server_len, | |
a230b26e | 2207 | const unsigned char *client, unsigned int client_len) |
0f113f3e MC |
2208 | { |
2209 | unsigned int i, j; | |
2210 | const unsigned char *result; | |
2211 | int status = OPENSSL_NPN_UNSUPPORTED; | |
2212 | ||
2213 | /* | |
2214 | * For each protocol in server preference order, see if we support it. | |
2215 | */ | |
2216 | for (i = 0; i < server_len;) { | |
2217 | for (j = 0; j < client_len;) { | |
2218 | if (server[i] == client[j] && | |
2219 | memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) { | |
2220 | /* We found a match */ | |
2221 | result = &server[i]; | |
2222 | status = OPENSSL_NPN_NEGOTIATED; | |
2223 | goto found; | |
2224 | } | |
2225 | j += client[j]; | |
2226 | j++; | |
2227 | } | |
2228 | i += server[i]; | |
2229 | i++; | |
2230 | } | |
2231 | ||
2232 | /* There's no overlap between our protocols and the server's list. */ | |
2233 | result = client; | |
2234 | status = OPENSSL_NPN_NO_OVERLAP; | |
2235 | ||
2236 | found: | |
2237 | *out = (unsigned char *)result + 1; | |
2238 | *outlen = result[0]; | |
2239 | return status; | |
2240 | } | |
ee2ffc27 | 2241 | |
e481f9b9 | 2242 | #ifndef OPENSSL_NO_NEXTPROTONEG |
0f113f3e MC |
2243 | /* |
2244 | * SSL_get0_next_proto_negotiated sets *data and *len to point to the | |
2245 | * client's requested protocol for this connection and returns 0. If the | |
2246 | * client didn't request any protocol, then *data is set to NULL. Note that | |
2247 | * the client can request any protocol it chooses. The value returned from | |
2248 | * this function need not be a member of the list of supported protocols | |
ee2ffc27 BL |
2249 | * provided by the callback. |
2250 | */ | |
0f113f3e MC |
2251 | void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, |
2252 | unsigned *len) | |
2253 | { | |
2254 | *data = s->next_proto_negotiated; | |
2255 | if (!*data) { | |
2256 | *len = 0; | |
2257 | } else { | |
348240c6 | 2258 | *len = (unsigned int)s->next_proto_negotiated_len; |
0f113f3e MC |
2259 | } |
2260 | } | |
2261 | ||
2262 | /* | |
2263 | * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when | |
2264 | * a TLS server needs a list of supported protocols for Next Protocol | |
2265 | * Negotiation. The returned list must be in wire format. The list is | |
2266 | * returned by setting |out| to point to it and |outlen| to its length. This | |
2267 | * memory will not be modified, but one should assume that the SSL* keeps a | |
2268 | * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it | |
2269 | * wishes to advertise. Otherwise, no such extension will be included in the | |
2270 | * ServerHello. | |
2271 | */ | |
2272 | void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, | |
2273 | int (*cb) (SSL *ssl, | |
2274 | const unsigned char | |
2275 | **out, | |
2276 | unsigned int *outlen, | |
2277 | void *arg), void *arg) | |
2278 | { | |
2279 | ctx->next_protos_advertised_cb = cb; | |
2280 | ctx->next_protos_advertised_cb_arg = arg; | |
2281 | } | |
2282 | ||
2283 | /* | |
2284 | * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a | |
ee2ffc27 BL |
2285 | * client needs to select a protocol from the server's provided list. |out| |
2286 | * must be set to point to the selected protocol (which may be within |in|). | |
0f113f3e MC |
2287 | * The length of the protocol name must be written into |outlen|. The |
2288 | * server's advertised protocols are provided in |in| and |inlen|. The | |
2289 | * callback can assume that |in| is syntactically valid. The client must | |
2290 | * select a protocol. It is fatal to the connection if this callback returns | |
2291 | * a value other than SSL_TLSEXT_ERR_OK. | |
ee2ffc27 | 2292 | */ |
0f113f3e MC |
2293 | void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, |
2294 | int (*cb) (SSL *s, unsigned char **out, | |
2295 | unsigned char *outlen, | |
2296 | const unsigned char *in, | |
2297 | unsigned int inlen, | |
2298 | void *arg), void *arg) | |
2299 | { | |
2300 | ctx->next_proto_select_cb = cb; | |
2301 | ctx->next_proto_select_cb_arg = arg; | |
2302 | } | |
e481f9b9 | 2303 | #endif |
a398f821 | 2304 | |
0f113f3e MC |
2305 | /* |
2306 | * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|. | |
6f017a8f | 2307 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2308 | * length-prefixed strings). Returns 0 on success. |
2309 | */ | |
2310 | int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, | |
817cd0d5 | 2311 | unsigned int protos_len) |
0f113f3e | 2312 | { |
25aaa98a | 2313 | OPENSSL_free(ctx->alpn_client_proto_list); |
817cd0d5 | 2314 | ctx->alpn_client_proto_list = OPENSSL_memdup(protos, protos_len); |
72e9be3d RS |
2315 | if (ctx->alpn_client_proto_list == NULL) { |
2316 | SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); | |
0f113f3e | 2317 | return 1; |
72e9be3d | 2318 | } |
0f113f3e MC |
2319 | ctx->alpn_client_proto_list_len = protos_len; |
2320 | ||
2321 | return 0; | |
2322 | } | |
2323 | ||
2324 | /* | |
2325 | * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|. | |
6f017a8f | 2326 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2327 | * length-prefixed strings). Returns 0 on success. |
2328 | */ | |
2329 | int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, | |
817cd0d5 | 2330 | unsigned int protos_len) |
0f113f3e | 2331 | { |
25aaa98a | 2332 | OPENSSL_free(ssl->alpn_client_proto_list); |
817cd0d5 | 2333 | ssl->alpn_client_proto_list = OPENSSL_memdup(protos, protos_len); |
72e9be3d RS |
2334 | if (ssl->alpn_client_proto_list == NULL) { |
2335 | SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); | |
0f113f3e | 2336 | return 1; |
72e9be3d | 2337 | } |
0f113f3e MC |
2338 | ssl->alpn_client_proto_list_len = protos_len; |
2339 | ||
2340 | return 0; | |
2341 | } | |
2342 | ||
2343 | /* | |
2344 | * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is | |
2345 | * called during ClientHello processing in order to select an ALPN protocol | |
2346 | * from the client's list of offered protocols. | |
2347 | */ | |
2348 | void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx, | |
2349 | int (*cb) (SSL *ssl, | |
2350 | const unsigned char **out, | |
2351 | unsigned char *outlen, | |
2352 | const unsigned char *in, | |
2353 | unsigned int inlen, | |
2354 | void *arg), void *arg) | |
2355 | { | |
2356 | ctx->alpn_select_cb = cb; | |
2357 | ctx->alpn_select_cb_arg = arg; | |
2358 | } | |
2359 | ||
2360 | /* | |
2361 | * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from | |
2362 | * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name | |
2363 | * (not including the leading length-prefix byte). If the server didn't | |
2364 | * respond with a negotiated protocol then |*len| will be zero. | |
2365 | */ | |
6f017a8f | 2366 | void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, |
817cd0d5 | 2367 | unsigned int *len) |
0f113f3e MC |
2368 | { |
2369 | *data = NULL; | |
2370 | if (ssl->s3) | |
2371 | *data = ssl->s3->alpn_selected; | |
2372 | if (*data == NULL) | |
2373 | *len = 0; | |
2374 | else | |
348240c6 | 2375 | *len = (unsigned int)ssl->s3->alpn_selected_len; |
0f113f3e MC |
2376 | } |
2377 | ||
74b4b494 | 2378 | int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, |
0f113f3e MC |
2379 | const char *label, size_t llen, |
2380 | const unsigned char *p, size_t plen, | |
2381 | int use_context) | |
2382 | { | |
c8a18468 | 2383 | if (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER) |
0f113f3e | 2384 | return -1; |
e0af0405 | 2385 | |
0f113f3e MC |
2386 | return s->method->ssl3_enc->export_keying_material(s, out, olen, label, |
2387 | llen, p, plen, | |
2388 | use_context); | |
2389 | } | |
e0af0405 | 2390 | |
3c1d6bbc | 2391 | static unsigned long ssl_session_hash(const SSL_SESSION *a) |
0f113f3e MC |
2392 | { |
2393 | unsigned long l; | |
2394 | ||
2395 | l = (unsigned long) | |
2396 | ((unsigned int)a->session_id[0]) | | |
2397 | ((unsigned int)a->session_id[1] << 8L) | | |
2398 | ((unsigned long)a->session_id[2] << 16L) | | |
2399 | ((unsigned long)a->session_id[3] << 24L); | |
2400 | return (l); | |
2401 | } | |
2402 | ||
2403 | /* | |
2404 | * NB: If this function (or indeed the hash function which uses a sort of | |
dc644fe2 | 2405 | * coarser function than this one) is changed, ensure |
0f113f3e MC |
2406 | * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on |
2407 | * being able to construct an SSL_SESSION that will collide with any existing | |
2408 | * session with a matching session ID. | |
2409 | */ | |
2410 | static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) | |
2411 | { | |
2412 | if (a->ssl_version != b->ssl_version) | |
2413 | return (1); | |
2414 | if (a->session_id_length != b->session_id_length) | |
2415 | return (1); | |
2416 | return (memcmp(a->session_id, b->session_id, a->session_id_length)); | |
2417 | } | |
2418 | ||
2419 | /* | |
2420 | * These wrapper functions should remain rather than redeclaring | |
d0fa136c | 2421 | * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each |
0f113f3e MC |
2422 | * variable. The reason is that the functions aren't static, they're exposed |
2423 | * via ssl.h. | |
2424 | */ | |
97b17195 | 2425 | |
4ebb342f | 2426 | SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth) |
0f113f3e MC |
2427 | { |
2428 | SSL_CTX *ret = NULL; | |
2429 | ||
2430 | if (meth == NULL) { | |
2431 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED); | |
2432 | return (NULL); | |
2433 | } | |
2434 | ||
0fc32b07 MC |
2435 | if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL)) |
2436 | return NULL; | |
7fa792d1 | 2437 | |
0f113f3e | 2438 | if (FIPS_mode() && (meth->version < TLS1_VERSION)) { |
4fa52141 | 2439 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_AT_LEAST_TLS_1_0_NEEDED_IN_FIPS_MODE); |
0f113f3e MC |
2440 | return NULL; |
2441 | } | |
2442 | ||
2443 | if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { | |
2444 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); | |
2445 | goto err; | |
2446 | } | |
b51bce94 | 2447 | ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e MC |
2448 | if (ret == NULL) |
2449 | goto err; | |
2450 | ||
0f113f3e | 2451 | ret->method = meth; |
7946ab33 KR |
2452 | ret->min_proto_version = 0; |
2453 | ret->max_proto_version = 0; | |
0f113f3e MC |
2454 | ret->session_cache_mode = SSL_SESS_CACHE_SERVER; |
2455 | ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; | |
64b25758 | 2456 | /* We take the system default. */ |
0f113f3e | 2457 | ret->session_timeout = meth->get_timeout(); |
0f113f3e | 2458 | ret->references = 1; |
16203f7b AG |
2459 | ret->lock = CRYPTO_THREAD_lock_new(); |
2460 | if (ret->lock == NULL) { | |
2461 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2462 | OPENSSL_free(ret); | |
2463 | return NULL; | |
2464 | } | |
0f113f3e | 2465 | ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; |
0f113f3e | 2466 | ret->verify_mode = SSL_VERIFY_NONE; |
0f113f3e MC |
2467 | if ((ret->cert = ssl_cert_new()) == NULL) |
2468 | goto err; | |
2469 | ||
62d0577e | 2470 | ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp); |
0f113f3e MC |
2471 | if (ret->sessions == NULL) |
2472 | goto err; | |
2473 | ret->cert_store = X509_STORE_new(); | |
2474 | if (ret->cert_store == NULL) | |
2475 | goto err; | |
ed29e82a RP |
2476 | #ifndef OPENSSL_NO_CT |
2477 | ret->ctlog_store = CTLOG_STORE_new(); | |
2478 | if (ret->ctlog_store == NULL) | |
2479 | goto err; | |
2480 | #endif | |
61986d32 | 2481 | if (!ssl_create_cipher_list(ret->method, |
a230b26e EK |
2482 | &ret->cipher_list, &ret->cipher_list_by_id, |
2483 | SSL_DEFAULT_CIPHER_LIST, ret->cert) | |
2484 | || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { | |
0f113f3e MC |
2485 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS); |
2486 | goto err2; | |
2487 | } | |
2488 | ||
2489 | ret->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 2490 | if (ret->param == NULL) |
0f113f3e MC |
2491 | goto err; |
2492 | ||
2493 | if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) { | |
2494 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); | |
2495 | goto err2; | |
2496 | } | |
2497 | if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) { | |
2498 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); | |
2499 | goto err2; | |
2500 | } | |
2501 | ||
2502 | if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL) | |
2503 | goto err; | |
2504 | ||
25a807bc F |
2505 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) |
2506 | goto err; | |
0f113f3e | 2507 | |
0f113f3e MC |
2508 | /* No compression for DTLS */ |
2509 | if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)) | |
2510 | ret->comp_methods = SSL_COMP_get_compression_methods(); | |
2511 | ||
2512 | ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; | |
d102d9df | 2513 | ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; |
566dda07 | 2514 | |
4e2e1ec9 | 2515 | /* Setup RFC5077 ticket keys */ |
a230b26e EK |
2516 | if ((RAND_bytes(ret->tlsext_tick_key_name, |
2517 | sizeof(ret->tlsext_tick_key_name)) <= 0) | |
2518 | || (RAND_bytes(ret->tlsext_tick_hmac_key, | |
2519 | sizeof(ret->tlsext_tick_hmac_key)) <= 0) | |
2520 | || (RAND_bytes(ret->tlsext_tick_aes_key, | |
2521 | sizeof(ret->tlsext_tick_aes_key)) <= 0)) | |
0f113f3e | 2522 | ret->options |= SSL_OP_NO_TICKET; |
6434abbf | 2523 | |
edc032b5 | 2524 | #ifndef OPENSSL_NO_SRP |
61986d32 | 2525 | if (!SSL_CTX_SRP_CTX_init(ret)) |
69f68237 | 2526 | goto err; |
edc032b5 | 2527 | #endif |
4db9677b | 2528 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e MC |
2529 | # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO |
2530 | # define eng_strx(x) #x | |
2531 | # define eng_str(x) eng_strx(x) | |
2532 | /* Use specific client engine automatically... ignore errors */ | |
2533 | { | |
2534 | ENGINE *eng; | |
2535 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2536 | if (!eng) { | |
2537 | ERR_clear_error(); | |
2538 | ENGINE_load_builtin_engines(); | |
2539 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2540 | } | |
2541 | if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) | |
2542 | ERR_clear_error(); | |
2543 | } | |
2544 | # endif | |
2545 | #endif | |
2546 | /* | |
2547 | * Default is to connect to non-RI servers. When RI is more widely | |
2548 | * deployed might change this. | |
2549 | */ | |
2550 | ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; | |
dc5744cb EK |
2551 | /* |
2552 | * Disable compression by default to prevent CRIME. Applications can | |
2553 | * re-enable compression by configuring | |
2554 | * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION); | |
2555 | * or by using the SSL_CONF library. | |
2556 | */ | |
2557 | ret->options |= SSL_OP_NO_COMPRESSION; | |
0f113f3e | 2558 | |
ba261f71 | 2559 | ret->tlsext_status_type = -1; |
2560 | ||
16203f7b | 2561 | return ret; |
0f113f3e MC |
2562 | err: |
2563 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2564 | err2: | |
e0e920b1 | 2565 | SSL_CTX_free(ret); |
16203f7b | 2566 | return NULL; |
0f113f3e | 2567 | } |
d02b48c6 | 2568 | |
c5ebfcab | 2569 | int SSL_CTX_up_ref(SSL_CTX *ctx) |
a18a31e4 | 2570 | { |
16203f7b | 2571 | int i; |
c5ebfcab F |
2572 | |
2573 | if (CRYPTO_atomic_add(&ctx->references, 1, &i, ctx->lock) <= 0) | |
2574 | return 0; | |
2575 | ||
2576 | REF_PRINT_COUNT("SSL_CTX", ctx); | |
2577 | REF_ASSERT_ISNT(i < 2); | |
2578 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
2579 | } |
2580 | ||
4f43d0e7 | 2581 | void SSL_CTX_free(SSL_CTX *a) |
0f113f3e MC |
2582 | { |
2583 | int i; | |
d02b48c6 | 2584 | |
0f113f3e MC |
2585 | if (a == NULL) |
2586 | return; | |
d02b48c6 | 2587 | |
16203f7b | 2588 | CRYPTO_atomic_add(&a->references, -1, &i, a->lock); |
f3f1cf84 | 2589 | REF_PRINT_COUNT("SSL_CTX", a); |
0f113f3e MC |
2590 | if (i > 0) |
2591 | return; | |
f3f1cf84 | 2592 | REF_ASSERT_ISNT(i < 0); |
0f113f3e | 2593 | |
222561fe | 2594 | X509_VERIFY_PARAM_free(a->param); |
919ba009 | 2595 | dane_ctx_final(&a->dane); |
0f113f3e MC |
2596 | |
2597 | /* | |
2598 | * Free internal session cache. However: the remove_cb() may reference | |
2599 | * the ex_data of SSL_CTX, thus the ex_data store can only be removed | |
2600 | * after the sessions were flushed. | |
2601 | * As the ex_data handling routines might also touch the session cache, | |
2602 | * the most secure solution seems to be: empty (flush) the cache, then | |
2603 | * free ex_data, then finally free the cache. | |
2604 | * (See ticket [openssl.org #212].) | |
2605 | */ | |
2606 | if (a->sessions != NULL) | |
2607 | SSL_CTX_flush_sessions(a, 0); | |
2608 | ||
2609 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); | |
25aaa98a | 2610 | lh_SSL_SESSION_free(a->sessions); |
222561fe | 2611 | X509_STORE_free(a->cert_store); |
ed29e82a RP |
2612 | #ifndef OPENSSL_NO_CT |
2613 | CTLOG_STORE_free(a->ctlog_store); | |
2614 | #endif | |
25aaa98a RS |
2615 | sk_SSL_CIPHER_free(a->cipher_list); |
2616 | sk_SSL_CIPHER_free(a->cipher_list_by_id); | |
e0e920b1 | 2617 | ssl_cert_free(a->cert); |
222561fe RS |
2618 | sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free); |
2619 | sk_X509_pop_free(a->extra_certs, X509_free); | |
0f113f3e | 2620 | a->comp_methods = NULL; |
e783bae2 | 2621 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 2622 | sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); |
e783bae2 | 2623 | #endif |
edc032b5 | 2624 | #ifndef OPENSSL_NO_SRP |
0f113f3e | 2625 | SSL_CTX_SRP_CTX_free(a); |
edc032b5 | 2626 | #endif |
bdfe932d | 2627 | #ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 2628 | ENGINE_finish(a->client_cert_engine); |
ddac1974 | 2629 | #endif |
8671b898 | 2630 | |
e481f9b9 | 2631 | #ifndef OPENSSL_NO_EC |
25aaa98a RS |
2632 | OPENSSL_free(a->tlsext_ecpointformatlist); |
2633 | OPENSSL_free(a->tlsext_ellipticcurvelist); | |
8671b898 | 2634 | #endif |
e481f9b9 | 2635 | OPENSSL_free(a->alpn_client_proto_list); |
8671b898 | 2636 | |
16203f7b AG |
2637 | CRYPTO_THREAD_lock_free(a->lock); |
2638 | ||
0f113f3e MC |
2639 | OPENSSL_free(a); |
2640 | } | |
d02b48c6 | 2641 | |
3ae76679 | 2642 | void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) |
0f113f3e MC |
2643 | { |
2644 | ctx->default_passwd_callback = cb; | |
2645 | } | |
2646 | ||
2647 | void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) | |
2648 | { | |
2649 | ctx->default_passwd_callback_userdata = u; | |
2650 | } | |
2651 | ||
0c452abc CH |
2652 | pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) |
2653 | { | |
2654 | return ctx->default_passwd_callback; | |
2655 | } | |
2656 | ||
2657 | void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) | |
2658 | { | |
2659 | return ctx->default_passwd_callback_userdata; | |
2660 | } | |
2661 | ||
a974e64a MC |
2662 | void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb) |
2663 | { | |
2664 | s->default_passwd_callback = cb; | |
2665 | } | |
2666 | ||
2667 | void SSL_set_default_passwd_cb_userdata(SSL *s, void *u) | |
2668 | { | |
2669 | s->default_passwd_callback_userdata = u; | |
2670 | } | |
2671 | ||
0c452abc CH |
2672 | pem_password_cb *SSL_get_default_passwd_cb(SSL *s) |
2673 | { | |
2674 | return s->default_passwd_callback; | |
2675 | } | |
2676 | ||
2677 | void *SSL_get_default_passwd_cb_userdata(SSL *s) | |
2678 | { | |
2679 | return s->default_passwd_callback_userdata; | |
2680 | } | |
2681 | ||
0f113f3e MC |
2682 | void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, |
2683 | int (*cb) (X509_STORE_CTX *, void *), | |
2684 | void *arg) | |
2685 | { | |
2686 | ctx->app_verify_callback = cb; | |
2687 | ctx->app_verify_arg = arg; | |
2688 | } | |
2689 | ||
2690 | void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, | |
2691 | int (*cb) (int, X509_STORE_CTX *)) | |
2692 | { | |
2693 | ctx->verify_mode = mode; | |
2694 | ctx->default_verify_callback = cb; | |
2695 | } | |
2696 | ||
2697 | void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) | |
2698 | { | |
2699 | X509_VERIFY_PARAM_set_depth(ctx->param, depth); | |
2700 | } | |
2701 | ||
a230b26e | 2702 | void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg) |
0f113f3e MC |
2703 | { |
2704 | ssl_cert_set_cert_cb(c->cert, cb, arg); | |
2705 | } | |
2706 | ||
2707 | void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg) | |
2708 | { | |
2709 | ssl_cert_set_cert_cb(s->cert, cb, arg); | |
2710 | } | |
18d71588 | 2711 | |
2cf28d61 | 2712 | void ssl_set_masks(SSL *s) |
0f113f3e | 2713 | { |
60f43e9e | 2714 | #if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_GOST) |
0f113f3e | 2715 | CERT_PKEY *cpk; |
60f43e9e | 2716 | #endif |
6383d316 | 2717 | CERT *c = s->cert; |
f7d53487 | 2718 | uint32_t *pvalid = s->s3->tmp.valid_flags; |
bc71f910 | 2719 | int rsa_enc, rsa_sign, dh_tmp, dsa_sign; |
361a1191 | 2720 | unsigned long mask_k, mask_a; |
10bf4fc2 | 2721 | #ifndef OPENSSL_NO_EC |
361a1191 | 2722 | int have_ecc_cert, ecdsa_ok; |
0f113f3e | 2723 | X509 *x = NULL; |
14536c8c | 2724 | #endif |
0f113f3e MC |
2725 | if (c == NULL) |
2726 | return; | |
d02b48c6 | 2727 | |
bc36ee62 | 2728 | #ifndef OPENSSL_NO_DH |
0f113f3e | 2729 | dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto); |
d02b48c6 | 2730 | #else |
361a1191 | 2731 | dh_tmp = 0; |
d02b48c6 RE |
2732 | #endif |
2733 | ||
6383d316 | 2734 | rsa_enc = pvalid[SSL_PKEY_RSA_ENC] & CERT_PKEY_VALID; |
6383d316 | 2735 | rsa_sign = pvalid[SSL_PKEY_RSA_SIGN] & CERT_PKEY_SIGN; |
6383d316 | 2736 | dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_SIGN; |
14536c8c | 2737 | #ifndef OPENSSL_NO_EC |
6383d316 | 2738 | have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID; |
14536c8c | 2739 | #endif |
0f113f3e MC |
2740 | mask_k = 0; |
2741 | mask_a = 0; | |
0e1dba93 | 2742 | |
d02b48c6 | 2743 | #ifdef CIPHER_DEBUG |
b7557ccf AG |
2744 | fprintf(stderr, "dht=%d re=%d rs=%d ds=%d\n", |
2745 | dh_tmp, rsa_enc, rsa_sign, dsa_sign); | |
0f113f3e MC |
2746 | #endif |
2747 | ||
2a9b9654 | 2748 | #ifndef OPENSSL_NO_GOST |
e44380a9 DB |
2749 | cpk = &(c->pkeys[SSL_PKEY_GOST12_512]); |
2750 | if (cpk->x509 != NULL && cpk->privatekey != NULL) { | |
2751 | mask_k |= SSL_kGOST; | |
2752 | mask_a |= SSL_aGOST12; | |
2753 | } | |
2754 | cpk = &(c->pkeys[SSL_PKEY_GOST12_256]); | |
2755 | if (cpk->x509 != NULL && cpk->privatekey != NULL) { | |
2756 | mask_k |= SSL_kGOST; | |
2757 | mask_a |= SSL_aGOST12; | |
2758 | } | |
0f113f3e MC |
2759 | cpk = &(c->pkeys[SSL_PKEY_GOST01]); |
2760 | if (cpk->x509 != NULL && cpk->privatekey != NULL) { | |
2761 | mask_k |= SSL_kGOST; | |
2762 | mask_a |= SSL_aGOST01; | |
2763 | } | |
2a9b9654 | 2764 | #endif |
0f113f3e | 2765 | |
361a1191 | 2766 | if (rsa_enc) |
0f113f3e | 2767 | mask_k |= SSL_kRSA; |
d02b48c6 | 2768 | |
0f113f3e MC |
2769 | if (dh_tmp) |
2770 | mask_k |= SSL_kDHE; | |
d02b48c6 | 2771 | |
0f113f3e MC |
2772 | if (rsa_enc || rsa_sign) { |
2773 | mask_a |= SSL_aRSA; | |
0f113f3e | 2774 | } |
d02b48c6 | 2775 | |
0f113f3e MC |
2776 | if (dsa_sign) { |
2777 | mask_a |= SSL_aDSS; | |
0f113f3e | 2778 | } |
d02b48c6 | 2779 | |
0f113f3e | 2780 | mask_a |= SSL_aNULL; |
d02b48c6 | 2781 | |
0f113f3e MC |
2782 | /* |
2783 | * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites | |
2784 | * depending on the key usage extension. | |
2785 | */ | |
14536c8c | 2786 | #ifndef OPENSSL_NO_EC |
0f113f3e | 2787 | if (have_ecc_cert) { |
a8d8e06b | 2788 | uint32_t ex_kusage; |
0f113f3e MC |
2789 | cpk = &c->pkeys[SSL_PKEY_ECC]; |
2790 | x = cpk->x509; | |
a8d8e06b | 2791 | ex_kusage = X509_get_key_usage(x); |
a8d8e06b | 2792 | ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE; |
6383d316 | 2793 | if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN)) |
0f113f3e | 2794 | ecdsa_ok = 0; |
c7c46256 | 2795 | if (ecdsa_ok) |
0f113f3e | 2796 | mask_a |= SSL_aECDSA; |
0f113f3e | 2797 | } |
14536c8c | 2798 | #endif |
ea262260 | 2799 | |
10bf4fc2 | 2800 | #ifndef OPENSSL_NO_EC |
fe6ef247 | 2801 | mask_k |= SSL_kECDHE; |
ea262260 | 2802 | #endif |
ddac1974 NL |
2803 | |
2804 | #ifndef OPENSSL_NO_PSK | |
0f113f3e MC |
2805 | mask_k |= SSL_kPSK; |
2806 | mask_a |= SSL_aPSK; | |
526f94ad DSH |
2807 | if (mask_k & SSL_kRSA) |
2808 | mask_k |= SSL_kRSAPSK; | |
2809 | if (mask_k & SSL_kDHE) | |
2810 | mask_k |= SSL_kDHEPSK; | |
2811 | if (mask_k & SSL_kECDHE) | |
2812 | mask_k |= SSL_kECDHEPSK; | |
ddac1974 NL |
2813 | #endif |
2814 | ||
4d69f9e6 DSH |
2815 | s->s3->tmp.mask_k = mask_k; |
2816 | s->s3->tmp.mask_a = mask_a; | |
0f113f3e | 2817 | } |
d02b48c6 | 2818 | |
ef236ec3 DSH |
2819 | #ifndef OPENSSL_NO_EC |
2820 | ||
a2f9200f | 2821 | int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) |
0f113f3e | 2822 | { |
ce0c1f2b | 2823 | if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aECDSA) { |
0f113f3e | 2824 | /* key usage, if present, must allow signing */ |
ce0c1f2b | 2825 | if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) { |
0f113f3e MC |
2826 | SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, |
2827 | SSL_R_ECC_CERT_NOT_FOR_SIGNING); | |
2828 | return 0; | |
2829 | } | |
2830 | } | |
0f113f3e MC |
2831 | return 1; /* all checks are ok */ |
2832 | } | |
ea262260 | 2833 | |
ef236ec3 DSH |
2834 | #endif |
2835 | ||
2daceb03 | 2836 | static int ssl_get_server_cert_index(const SSL *s) |
0f113f3e MC |
2837 | { |
2838 | int idx; | |
2839 | idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher); | |
2840 | if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509) | |
2841 | idx = SSL_PKEY_RSA_SIGN; | |
e44380a9 DB |
2842 | if (idx == SSL_PKEY_GOST_EC) { |
2843 | if (s->cert->pkeys[SSL_PKEY_GOST12_512].x509) | |
2844 | idx = SSL_PKEY_GOST12_512; | |
2845 | else if (s->cert->pkeys[SSL_PKEY_GOST12_256].x509) | |
2846 | idx = SSL_PKEY_GOST12_256; | |
2847 | else if (s->cert->pkeys[SSL_PKEY_GOST01].x509) | |
2848 | idx = SSL_PKEY_GOST01; | |
2849 | else | |
2850 | idx = -1; | |
2851 | } | |
0f113f3e MC |
2852 | if (idx == -1) |
2853 | SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR); | |
2854 | return idx; | |
2855 | } | |
a9e1c50b | 2856 | |
6383d316 | 2857 | CERT_PKEY *ssl_get_server_send_pkey(SSL *s) |
0f113f3e MC |
2858 | { |
2859 | CERT *c; | |
2860 | int i; | |
ea262260 | 2861 | |
0f113f3e MC |
2862 | c = s->cert; |
2863 | if (!s->s3 || !s->s3->tmp.new_cipher) | |
2864 | return NULL; | |
2cf28d61 | 2865 | ssl_set_masks(s); |
a9e1c50b | 2866 | |
0f113f3e | 2867 | i = ssl_get_server_cert_index(s); |
a9e1c50b | 2868 | |
0f113f3e MC |
2869 | /* This may or may not be an error. */ |
2870 | if (i < 0) | |
2871 | return NULL; | |
a9e1c50b | 2872 | |
0f113f3e MC |
2873 | /* May be NULL. */ |
2874 | return &c->pkeys[i]; | |
2875 | } | |
d02b48c6 | 2876 | |
0f113f3e MC |
2877 | EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, |
2878 | const EVP_MD **pmd) | |
2879 | { | |
2880 | unsigned long alg_a; | |
2881 | CERT *c; | |
2882 | int idx = -1; | |
d02b48c6 | 2883 | |
0f113f3e MC |
2884 | alg_a = cipher->algorithm_auth; |
2885 | c = s->cert; | |
d02b48c6 | 2886 | |
a230b26e | 2887 | if ((alg_a & SSL_aDSS) && (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) |
0f113f3e MC |
2888 | idx = SSL_PKEY_DSA_SIGN; |
2889 | else if (alg_a & SSL_aRSA) { | |
2890 | if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) | |
2891 | idx = SSL_PKEY_RSA_SIGN; | |
2892 | else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) | |
2893 | idx = SSL_PKEY_RSA_ENC; | |
2894 | } else if ((alg_a & SSL_aECDSA) && | |
2895 | (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) | |
2896 | idx = SSL_PKEY_ECC; | |
2897 | if (idx == -1) { | |
2898 | SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR); | |
2899 | return (NULL); | |
2900 | } | |
2901 | if (pmd) | |
d376e57d | 2902 | *pmd = s->s3->tmp.md[idx]; |
0f113f3e MC |
2903 | return c->pkeys[idx].privatekey; |
2904 | } | |
d02b48c6 | 2905 | |
a398f821 | 2906 | int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, |
0f113f3e MC |
2907 | size_t *serverinfo_length) |
2908 | { | |
2909 | CERT *c = NULL; | |
2910 | int i = 0; | |
2911 | *serverinfo_length = 0; | |
2912 | ||
2913 | c = s->cert; | |
2914 | i = ssl_get_server_cert_index(s); | |
2915 | ||
2916 | if (i == -1) | |
2917 | return 0; | |
2918 | if (c->pkeys[i].serverinfo == NULL) | |
2919 | return 0; | |
2920 | ||
2921 | *serverinfo = c->pkeys[i].serverinfo; | |
2922 | *serverinfo_length = c->pkeys[i].serverinfo_length; | |
2923 | return 1; | |
2924 | } | |
0f113f3e MC |
2925 | |
2926 | void ssl_update_cache(SSL *s, int mode) | |
2927 | { | |
2928 | int i; | |
2929 | ||
2930 | /* | |
2931 | * If the session_id_length is 0, we are not supposed to cache it, and it | |
2932 | * would be rather hard to do anyway :-) | |
2933 | */ | |
2934 | if (s->session->session_id_length == 0) | |
2935 | return; | |
2936 | ||
2937 | i = s->session_ctx->session_cache_mode; | |
2938 | if ((i & mode) && (!s->hit) | |
2939 | && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) | |
2940 | || SSL_CTX_add_session(s->session_ctx, s->session)) | |
2941 | && (s->session_ctx->new_session_cb != NULL)) { | |
16203f7b | 2942 | SSL_SESSION_up_ref(s->session); |
0f113f3e MC |
2943 | if (!s->session_ctx->new_session_cb(s, s->session)) |
2944 | SSL_SESSION_free(s->session); | |
2945 | } | |
2946 | ||
2947 | /* auto flush every 255 connections */ | |
2948 | if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) { | |
2949 | if ((((mode & SSL_SESS_CACHE_CLIENT) | |
2950 | ? s->session_ctx->stats.sess_connect_good | |
2951 | : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) { | |
2952 | SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL)); | |
2953 | } | |
2954 | } | |
2955 | } | |
d02b48c6 | 2956 | |
ba168244 | 2957 | const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx) |
0f113f3e MC |
2958 | { |
2959 | return ctx->method; | |
2960 | } | |
ba168244 | 2961 | |
4ebb342f | 2962 | const SSL_METHOD *SSL_get_ssl_method(SSL *s) |
0f113f3e MC |
2963 | { |
2964 | return (s->method); | |
2965 | } | |
d02b48c6 | 2966 | |
4ebb342f | 2967 | int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) |
0f113f3e | 2968 | { |
0f113f3e MC |
2969 | int ret = 1; |
2970 | ||
2971 | if (s->method != meth) { | |
919ba009 | 2972 | const SSL_METHOD *sm = s->method; |
a230b26e | 2973 | int (*hf) (SSL *) = s->handshake_func; |
0f113f3e | 2974 | |
919ba009 | 2975 | if (sm->version == meth->version) |
0f113f3e MC |
2976 | s->method = meth; |
2977 | else { | |
919ba009 | 2978 | sm->ssl_free(s); |
0f113f3e MC |
2979 | s->method = meth; |
2980 | ret = s->method->ssl_new(s); | |
2981 | } | |
2982 | ||
919ba009 | 2983 | if (hf == sm->ssl_connect) |
0f113f3e | 2984 | s->handshake_func = meth->ssl_connect; |
919ba009 | 2985 | else if (hf == sm->ssl_accept) |
0f113f3e MC |
2986 | s->handshake_func = meth->ssl_accept; |
2987 | } | |
2988 | return (ret); | |
2989 | } | |
2990 | ||
2991 | int SSL_get_error(const SSL *s, int i) | |
2992 | { | |
2993 | int reason; | |
2994 | unsigned long l; | |
2995 | BIO *bio; | |
2996 | ||
2997 | if (i > 0) | |
2998 | return (SSL_ERROR_NONE); | |
2999 | ||
3000 | /* | |
3001 | * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc, | |
3002 | * where we do encode the error | |
3003 | */ | |
3004 | if ((l = ERR_peek_error()) != 0) { | |
3005 | if (ERR_GET_LIB(l) == ERR_LIB_SYS) | |
3006 | return (SSL_ERROR_SYSCALL); | |
3007 | else | |
3008 | return (SSL_ERROR_SSL); | |
3009 | } | |
3010 | ||
8051ab2b MC |
3011 | if (SSL_want_read(s)) { |
3012 | bio = SSL_get_rbio(s); | |
3013 | if (BIO_should_read(bio)) | |
3014 | return (SSL_ERROR_WANT_READ); | |
3015 | else if (BIO_should_write(bio)) | |
3016 | /* | |
3017 | * This one doesn't make too much sense ... We never try to write | |
3018 | * to the rbio, and an application program where rbio and wbio | |
3019 | * are separate couldn't even know what it should wait for. | |
3020 | * However if we ever set s->rwstate incorrectly (so that we have | |
3021 | * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and | |
3022 | * wbio *are* the same, this test works around that bug; so it | |
3023 | * might be safer to keep it. | |
3024 | */ | |
3025 | return (SSL_ERROR_WANT_WRITE); | |
3026 | else if (BIO_should_io_special(bio)) { | |
3027 | reason = BIO_get_retry_reason(bio); | |
3028 | if (reason == BIO_RR_CONNECT) | |
3029 | return (SSL_ERROR_WANT_CONNECT); | |
3030 | else if (reason == BIO_RR_ACCEPT) | |
3031 | return (SSL_ERROR_WANT_ACCEPT); | |
3032 | else | |
3033 | return (SSL_ERROR_SYSCALL); /* unknown */ | |
0f113f3e | 3034 | } |
8051ab2b | 3035 | } |
0f113f3e | 3036 | |
8051ab2b MC |
3037 | if (SSL_want_write(s)) { |
3038 | /* | |
3039 | * Access wbio directly - in order to use the buffered bio if | |
3040 | * present | |
3041 | */ | |
3042 | bio = s->wbio; | |
3043 | if (BIO_should_write(bio)) | |
3044 | return (SSL_ERROR_WANT_WRITE); | |
3045 | else if (BIO_should_read(bio)) | |
2e7dc7cd | 3046 | /* |
8051ab2b | 3047 | * See above (SSL_want_read(s) with BIO_should_write(bio)) |
2e7dc7cd | 3048 | */ |
8051ab2b MC |
3049 | return (SSL_ERROR_WANT_READ); |
3050 | else if (BIO_should_io_special(bio)) { | |
3051 | reason = BIO_get_retry_reason(bio); | |
3052 | if (reason == BIO_RR_CONNECT) | |
3053 | return (SSL_ERROR_WANT_CONNECT); | |
3054 | else if (reason == BIO_RR_ACCEPT) | |
3055 | return (SSL_ERROR_WANT_ACCEPT); | |
3056 | else | |
3057 | return (SSL_ERROR_SYSCALL); | |
0f113f3e | 3058 | } |
07bbc92c | 3059 | } |
8051ab2b MC |
3060 | if (SSL_want_x509_lookup(s)) { |
3061 | return (SSL_ERROR_WANT_X509_LOOKUP); | |
0f113f3e | 3062 | } |
8051ab2b MC |
3063 | if (SSL_want_async(s)) { |
3064 | return SSL_ERROR_WANT_ASYNC; | |
3065 | } | |
3066 | if (SSL_want_async_job(s)) { | |
3067 | return SSL_ERROR_WANT_ASYNC_JOB; | |
3068 | } | |
3069 | ||
3070 | if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && | |
3071 | (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) | |
3072 | return (SSL_ERROR_ZERO_RETURN); | |
3073 | ||
0f113f3e MC |
3074 | return (SSL_ERROR_SYSCALL); |
3075 | } | |
d02b48c6 | 3076 | |
add2f5ca MC |
3077 | static int ssl_do_handshake_intern(void *vargs) |
3078 | { | |
3079 | struct ssl_async_args *args; | |
3080 | SSL *s; | |
3081 | ||
3082 | args = (struct ssl_async_args *)vargs; | |
3083 | s = args->s; | |
3084 | ||
3085 | return s->handshake_func(s); | |
3086 | } | |
3087 | ||
4f43d0e7 | 3088 | int SSL_do_handshake(SSL *s) |
0f113f3e MC |
3089 | { |
3090 | int ret = 1; | |
3091 | ||
3092 | if (s->handshake_func == NULL) { | |
3093 | SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET); | |
add2f5ca | 3094 | return -1; |
0f113f3e MC |
3095 | } |
3096 | ||
3097 | s->method->ssl_renegotiate_check(s); | |
3098 | ||
3099 | if (SSL_in_init(s) || SSL_in_before(s)) { | |
e8aa8b6c | 3100 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca MC |
3101 | struct ssl_async_args args; |
3102 | ||
3103 | args.s = s; | |
3104 | ||
7fecbf6f | 3105 | ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern); |
add2f5ca MC |
3106 | } else { |
3107 | ret = s->handshake_func(s); | |
3108 | } | |
0f113f3e | 3109 | } |
add2f5ca | 3110 | return ret; |
0f113f3e MC |
3111 | } |
3112 | ||
4f43d0e7 | 3113 | void SSL_set_accept_state(SSL *s) |
0f113f3e MC |
3114 | { |
3115 | s->server = 1; | |
3116 | s->shutdown = 0; | |
fe3a3291 | 3117 | ossl_statem_clear(s); |
0f113f3e | 3118 | s->handshake_func = s->method->ssl_accept; |
d31fb0b5 | 3119 | clear_ciphers(s); |
0f113f3e | 3120 | } |
d02b48c6 | 3121 | |
4f43d0e7 | 3122 | void SSL_set_connect_state(SSL *s) |
0f113f3e MC |
3123 | { |
3124 | s->server = 0; | |
3125 | s->shutdown = 0; | |
fe3a3291 | 3126 | ossl_statem_clear(s); |
0f113f3e | 3127 | s->handshake_func = s->method->ssl_connect; |
d31fb0b5 | 3128 | clear_ciphers(s); |
0f113f3e | 3129 | } |
d02b48c6 | 3130 | |
4f43d0e7 | 3131 | int ssl_undefined_function(SSL *s) |
0f113f3e MC |
3132 | { |
3133 | SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3134 | return (0); | |
3135 | } | |
d02b48c6 | 3136 | |
41a15c4f | 3137 | int ssl_undefined_void_function(void) |
0f113f3e MC |
3138 | { |
3139 | SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION, | |
3140 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3141 | return (0); | |
3142 | } | |
41a15c4f | 3143 | |
0821bcd4 | 3144 | int ssl_undefined_const_function(const SSL *s) |
0f113f3e | 3145 | { |
0f113f3e MC |
3146 | return (0); |
3147 | } | |
0821bcd4 | 3148 | |
2b8fa1d5 | 3149 | const SSL_METHOD *ssl_bad_method(int ver) |
0f113f3e MC |
3150 | { |
3151 | SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3152 | return (NULL); | |
3153 | } | |
d02b48c6 | 3154 | |
3eb2aff4 | 3155 | const char *ssl_protocol_to_string(int version) |
7d650072 | 3156 | { |
2abacef1 MC |
3157 | switch(version) |
3158 | { | |
3159 | case TLS1_3_VERSION: | |
582a17d6 | 3160 | return "TLSv1.3"; |
2abacef1 MC |
3161 | |
3162 | case TLS1_2_VERSION: | |
7d650072 | 3163 | return "TLSv1.2"; |
2abacef1 MC |
3164 | |
3165 | case TLS1_1_VERSION: | |
7d650072 | 3166 | return "TLSv1.1"; |
2abacef1 MC |
3167 | |
3168 | case TLS1_VERSION: | |
ee3a6c64 | 3169 | return "TLSv1"; |
2abacef1 MC |
3170 | |
3171 | case SSL3_VERSION: | |
7d650072 | 3172 | return "SSLv3"; |
2abacef1 MC |
3173 | |
3174 | case DTLS1_BAD_VER: | |
7d650072 | 3175 | return "DTLSv0.9"; |
2abacef1 MC |
3176 | |
3177 | case DTLS1_VERSION: | |
7d650072 | 3178 | return "DTLSv1"; |
2abacef1 MC |
3179 | |
3180 | case DTLS1_2_VERSION: | |
7d650072 | 3181 | return "DTLSv1.2"; |
2abacef1 MC |
3182 | |
3183 | default: | |
3184 | return "unknown"; | |
3185 | } | |
0f113f3e | 3186 | } |
d02b48c6 | 3187 | |
7d650072 KR |
3188 | const char *SSL_get_version(const SSL *s) |
3189 | { | |
3eb2aff4 | 3190 | return ssl_protocol_to_string(s->version); |
7d650072 KR |
3191 | } |
3192 | ||
4f43d0e7 | 3193 | SSL *SSL_dup(SSL *s) |
0f113f3e MC |
3194 | { |
3195 | STACK_OF(X509_NAME) *sk; | |
3196 | X509_NAME *xn; | |
3197 | SSL *ret; | |
3198 | int i; | |
3199 | ||
919ba009 VD |
3200 | /* If we're not quiescent, just up_ref! */ |
3201 | if (!SSL_in_init(s) || !SSL_in_before(s)) { | |
16203f7b | 3202 | CRYPTO_atomic_add(&s->references, 1, &i, s->lock); |
919ba009 VD |
3203 | return s; |
3204 | } | |
3205 | ||
3206 | /* | |
3207 | * Otherwise, copy configuration state, and session if set. | |
3208 | */ | |
0f113f3e MC |
3209 | if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) |
3210 | return (NULL); | |
3211 | ||
0f113f3e | 3212 | if (s->session != NULL) { |
919ba009 VD |
3213 | /* |
3214 | * Arranges to share the same session via up_ref. This "copies" | |
3215 | * session-id, SSL_METHOD, sid_ctx, and 'cert' | |
3216 | */ | |
61986d32 | 3217 | if (!SSL_copy_session_id(ret, s)) |
17dd65e6 | 3218 | goto err; |
0f113f3e MC |
3219 | } else { |
3220 | /* | |
3221 | * No session has been established yet, so we have to expect that | |
3222 | * s->cert or ret->cert will be changed later -- they should not both | |
3223 | * point to the same object, and thus we can't use | |
3224 | * SSL_copy_session_id. | |
3225 | */ | |
919ba009 VD |
3226 | if (!SSL_set_ssl_method(ret, s->method)) |
3227 | goto err; | |
0f113f3e MC |
3228 | |
3229 | if (s->cert != NULL) { | |
e0e920b1 | 3230 | ssl_cert_free(ret->cert); |
0f113f3e MC |
3231 | ret->cert = ssl_cert_dup(s->cert); |
3232 | if (ret->cert == NULL) | |
3233 | goto err; | |
3234 | } | |
3235 | ||
348240c6 MC |
3236 | if (!SSL_set_session_id_context(ret, s->sid_ctx, |
3237 | (int)s->sid_ctx_length)) | |
69f68237 | 3238 | goto err; |
0f113f3e MC |
3239 | } |
3240 | ||
9f6b22b8 VD |
3241 | if (!ssl_dane_dup(ret, s)) |
3242 | goto err; | |
919ba009 | 3243 | ret->version = s->version; |
0f113f3e MC |
3244 | ret->options = s->options; |
3245 | ret->mode = s->mode; | |
3246 | SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); | |
3247 | SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); | |
3248 | ret->msg_callback = s->msg_callback; | |
3249 | ret->msg_callback_arg = s->msg_callback_arg; | |
3250 | SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s)); | |
3251 | SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); | |
3252 | ret->generate_session_id = s->generate_session_id; | |
3253 | ||
3254 | SSL_set_info_callback(ret, SSL_get_info_callback(s)); | |
3255 | ||
0f113f3e MC |
3256 | /* copy app data, a little dangerous perhaps */ |
3257 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) | |
3258 | goto err; | |
3259 | ||
3260 | /* setup rbio, and wbio */ | |
3261 | if (s->rbio != NULL) { | |
3262 | if (!BIO_dup_state(s->rbio, (char *)&ret->rbio)) | |
3263 | goto err; | |
3264 | } | |
3265 | if (s->wbio != NULL) { | |
3266 | if (s->wbio != s->rbio) { | |
3267 | if (!BIO_dup_state(s->wbio, (char *)&ret->wbio)) | |
3268 | goto err; | |
65e2d672 MC |
3269 | } else { |
3270 | BIO_up_ref(ret->rbio); | |
0f113f3e | 3271 | ret->wbio = ret->rbio; |
65e2d672 | 3272 | } |
0f113f3e | 3273 | } |
919ba009 | 3274 | |
0f113f3e | 3275 | ret->server = s->server; |
919ba009 VD |
3276 | if (s->handshake_func) { |
3277 | if (s->server) | |
3278 | SSL_set_accept_state(ret); | |
3279 | else | |
3280 | SSL_set_connect_state(ret); | |
3281 | } | |
0f113f3e | 3282 | ret->shutdown = s->shutdown; |
0f113f3e MC |
3283 | ret->hit = s->hit; |
3284 | ||
a974e64a MC |
3285 | ret->default_passwd_callback = s->default_passwd_callback; |
3286 | ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata; | |
3287 | ||
0f113f3e MC |
3288 | X509_VERIFY_PARAM_inherit(ret->param, s->param); |
3289 | ||
3290 | /* dup the cipher_list and cipher_list_by_id stacks */ | |
3291 | if (s->cipher_list != NULL) { | |
3292 | if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) | |
3293 | goto err; | |
3294 | } | |
3295 | if (s->cipher_list_by_id != NULL) | |
3296 | if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id)) | |
3297 | == NULL) | |
3298 | goto err; | |
3299 | ||
3300 | /* Dup the client_CA list */ | |
3301 | if (s->client_CA != NULL) { | |
3302 | if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL) | |
3303 | goto err; | |
3304 | ret->client_CA = sk; | |
3305 | for (i = 0; i < sk_X509_NAME_num(sk); i++) { | |
3306 | xn = sk_X509_NAME_value(sk, i); | |
3307 | if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) { | |
3308 | X509_NAME_free(xn); | |
3309 | goto err; | |
3310 | } | |
3311 | } | |
3312 | } | |
66696478 | 3313 | return ret; |
0f113f3e | 3314 | |
0f113f3e | 3315 | err: |
66696478 RS |
3316 | SSL_free(ret); |
3317 | return NULL; | |
0f113f3e | 3318 | } |
d02b48c6 | 3319 | |
4f43d0e7 | 3320 | void ssl_clear_cipher_ctx(SSL *s) |
0f113f3e MC |
3321 | { |
3322 | if (s->enc_read_ctx != NULL) { | |
846ec07d | 3323 | EVP_CIPHER_CTX_free(s->enc_read_ctx); |
0f113f3e MC |
3324 | s->enc_read_ctx = NULL; |
3325 | } | |
3326 | if (s->enc_write_ctx != NULL) { | |
846ec07d | 3327 | EVP_CIPHER_CTX_free(s->enc_write_ctx); |
0f113f3e MC |
3328 | s->enc_write_ctx = NULL; |
3329 | } | |
09b6c2ef | 3330 | #ifndef OPENSSL_NO_COMP |
efa7dd64 RS |
3331 | COMP_CTX_free(s->expand); |
3332 | s->expand = NULL; | |
3333 | COMP_CTX_free(s->compress); | |
3334 | s->compress = NULL; | |
0f113f3e MC |
3335 | #endif |
3336 | } | |
d02b48c6 | 3337 | |
0821bcd4 | 3338 | X509 *SSL_get_certificate(const SSL *s) |
0f113f3e MC |
3339 | { |
3340 | if (s->cert != NULL) | |
3341 | return (s->cert->key->x509); | |
3342 | else | |
3343 | return (NULL); | |
3344 | } | |
d02b48c6 | 3345 | |
a25f9adc | 3346 | EVP_PKEY *SSL_get_privatekey(const SSL *s) |
0f113f3e MC |
3347 | { |
3348 | if (s->cert != NULL) | |
3349 | return (s->cert->key->privatekey); | |
3350 | else | |
3351 | return (NULL); | |
3352 | } | |
d02b48c6 | 3353 | |
a25f9adc | 3354 | X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx) |
0f113f3e MC |
3355 | { |
3356 | if (ctx->cert != NULL) | |
3357 | return ctx->cert->key->x509; | |
3358 | else | |
3359 | return NULL; | |
3360 | } | |
a25f9adc DSH |
3361 | |
3362 | EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx) | |
0f113f3e MC |
3363 | { |
3364 | if (ctx->cert != NULL) | |
3365 | return ctx->cert->key->privatekey; | |
3366 | else | |
3367 | return NULL; | |
3368 | } | |
a25f9adc | 3369 | |
babb3798 | 3370 | const SSL_CIPHER *SSL_get_current_cipher(const SSL *s) |
0f113f3e MC |
3371 | { |
3372 | if ((s->session != NULL) && (s->session->cipher != NULL)) | |
3373 | return (s->session->cipher); | |
3374 | return (NULL); | |
3375 | } | |
3376 | ||
377dcdba | 3377 | const COMP_METHOD *SSL_get_current_compression(SSL *s) |
0f113f3e | 3378 | { |
9a555706 RS |
3379 | #ifndef OPENSSL_NO_COMP |
3380 | return s->compress ? COMP_CTX_get_method(s->compress) : NULL; | |
3381 | #else | |
3382 | return NULL; | |
3383 | #endif | |
0f113f3e | 3384 | } |
377dcdba RL |
3385 | |
3386 | const COMP_METHOD *SSL_get_current_expansion(SSL *s) | |
0f113f3e | 3387 | { |
9a555706 RS |
3388 | #ifndef OPENSSL_NO_COMP |
3389 | return s->expand ? COMP_CTX_get_method(s->expand) : NULL; | |
3390 | #else | |
3391 | return NULL; | |
0f113f3e | 3392 | #endif |
9a555706 | 3393 | } |
0f113f3e | 3394 | |
46417569 | 3395 | int ssl_init_wbio_buffer(SSL *s) |
0f113f3e MC |
3396 | { |
3397 | BIO *bbio; | |
3398 | ||
2e7dc7cd MC |
3399 | if (s->bbio != NULL) { |
3400 | /* Already buffered. */ | |
3401 | return 1; | |
0f113f3e | 3402 | } |
46417569 | 3403 | |
2e7dc7cd MC |
3404 | bbio = BIO_new(BIO_f_buffer()); |
3405 | if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) { | |
3406 | BIO_free(bbio); | |
0f113f3e | 3407 | SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB); |
46417569 | 3408 | return 0; |
0f113f3e | 3409 | } |
2e7dc7cd MC |
3410 | s->bbio = bbio; |
3411 | s->wbio = BIO_push(bbio, s->wbio); | |
46417569 MC |
3412 | |
3413 | return 1; | |
0f113f3e | 3414 | } |
413c4f45 | 3415 | |
4f43d0e7 | 3416 | void ssl_free_wbio_buffer(SSL *s) |
0f113f3e | 3417 | { |
62adbcee | 3418 | /* callers ensure s is never null */ |
0f113f3e MC |
3419 | if (s->bbio == NULL) |
3420 | return; | |
3421 | ||
2e7dc7cd MC |
3422 | s->wbio = BIO_pop(s->wbio); |
3423 | assert(s->wbio != NULL); | |
0f113f3e MC |
3424 | BIO_free(s->bbio); |
3425 | s->bbio = NULL; | |
3426 | } | |
3427 | ||
3428 | void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) | |
3429 | { | |
3430 | ctx->quiet_shutdown = mode; | |
3431 | } | |
58964a49 | 3432 | |
0821bcd4 | 3433 | int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) |
0f113f3e MC |
3434 | { |
3435 | return (ctx->quiet_shutdown); | |
3436 | } | |
58964a49 | 3437 | |
0f113f3e MC |
3438 | void SSL_set_quiet_shutdown(SSL *s, int mode) |
3439 | { | |
3440 | s->quiet_shutdown = mode; | |
3441 | } | |
58964a49 | 3442 | |
0821bcd4 | 3443 | int SSL_get_quiet_shutdown(const SSL *s) |
0f113f3e MC |
3444 | { |
3445 | return (s->quiet_shutdown); | |
3446 | } | |
58964a49 | 3447 | |
0f113f3e MC |
3448 | void SSL_set_shutdown(SSL *s, int mode) |
3449 | { | |
3450 | s->shutdown = mode; | |
3451 | } | |
58964a49 | 3452 | |
0821bcd4 | 3453 | int SSL_get_shutdown(const SSL *s) |
0f113f3e | 3454 | { |
6546e9b2 | 3455 | return s->shutdown; |
0f113f3e | 3456 | } |
58964a49 | 3457 | |
0821bcd4 | 3458 | int SSL_version(const SSL *s) |
0f113f3e | 3459 | { |
6546e9b2 AG |
3460 | return s->version; |
3461 | } | |
3462 | ||
3463 | int SSL_client_version(const SSL *s) | |
3464 | { | |
3465 | return s->client_version; | |
0f113f3e | 3466 | } |
58964a49 | 3467 | |
0821bcd4 | 3468 | SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) |
0f113f3e | 3469 | { |
6546e9b2 | 3470 | return ssl->ctx; |
0f113f3e MC |
3471 | } |
3472 | ||
3473 | SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx) | |
3474 | { | |
24a0d393 | 3475 | CERT *new_cert; |
0f113f3e MC |
3476 | if (ssl->ctx == ctx) |
3477 | return ssl->ctx; | |
0f113f3e MC |
3478 | if (ctx == NULL) |
3479 | ctx = ssl->initial_ctx; | |
24a0d393 KR |
3480 | new_cert = ssl_cert_dup(ctx->cert); |
3481 | if (new_cert == NULL) { | |
3482 | return NULL; | |
0f113f3e | 3483 | } |
24a0d393 KR |
3484 | ssl_cert_free(ssl->cert); |
3485 | ssl->cert = new_cert; | |
0f113f3e MC |
3486 | |
3487 | /* | |
3488 | * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH), | |
3489 | * so setter APIs must prevent invalid lengths from entering the system. | |
3490 | */ | |
3491 | OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx)); | |
3492 | ||
3493 | /* | |
3494 | * If the session ID context matches that of the parent SSL_CTX, | |
3495 | * inherit it from the new SSL_CTX as well. If however the context does | |
3496 | * not match (i.e., it was set per-ssl with SSL_set_session_id_context), | |
3497 | * leave it unchanged. | |
3498 | */ | |
3499 | if ((ssl->ctx != NULL) && | |
3500 | (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) && | |
3501 | (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) { | |
3502 | ssl->sid_ctx_length = ctx->sid_ctx_length; | |
3503 | memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx)); | |
3504 | } | |
3505 | ||
16203f7b | 3506 | SSL_CTX_up_ref(ctx); |
a230b26e | 3507 | SSL_CTX_free(ssl->ctx); /* decrement reference count */ |
0f113f3e MC |
3508 | ssl->ctx = ctx; |
3509 | ||
16203f7b | 3510 | return ssl->ctx; |
0f113f3e | 3511 | } |
ed3883d2 | 3512 | |
4f43d0e7 | 3513 | int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) |
0f113f3e MC |
3514 | { |
3515 | return (X509_STORE_set_default_paths(ctx->cert_store)); | |
3516 | } | |
58964a49 | 3517 | |
d84a7b20 MC |
3518 | int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx) |
3519 | { | |
3520 | X509_LOOKUP *lookup; | |
3521 | ||
3522 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir()); | |
3523 | if (lookup == NULL) | |
3524 | return 0; | |
3525 | X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT); | |
3526 | ||
3527 | /* Clear any errors if the default directory does not exist */ | |
3528 | ERR_clear_error(); | |
3529 | ||
3530 | return 1; | |
3531 | } | |
3532 | ||
3533 | int SSL_CTX_set_default_verify_file(SSL_CTX *ctx) | |
3534 | { | |
3535 | X509_LOOKUP *lookup; | |
3536 | ||
3537 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file()); | |
3538 | if (lookup == NULL) | |
3539 | return 0; | |
3540 | ||
3541 | X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT); | |
3542 | ||
3543 | /* Clear any errors if the default file does not exist */ | |
3544 | ERR_clear_error(); | |
3545 | ||
3546 | return 1; | |
3547 | } | |
3548 | ||
303c0028 | 3549 | int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, |
0f113f3e MC |
3550 | const char *CApath) |
3551 | { | |
3552 | return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); | |
3553 | } | |
58964a49 | 3554 | |
45d87a1f | 3555 | void SSL_set_info_callback(SSL *ssl, |
0f113f3e MC |
3556 | void (*cb) (const SSL *ssl, int type, int val)) |
3557 | { | |
3558 | ssl->info_callback = cb; | |
3559 | } | |
3560 | ||
3561 | /* | |
3562 | * One compiler (Diab DCC) doesn't like argument names in returned function | |
3563 | * pointer. | |
3564 | */ | |
3565 | void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ , | |
3566 | int /* type */ , | |
3567 | int /* val */ ) { | |
3568 | return ssl->info_callback; | |
3569 | } | |
58964a49 | 3570 | |
0f113f3e MC |
3571 | void SSL_set_verify_result(SSL *ssl, long arg) |
3572 | { | |
3573 | ssl->verify_result = arg; | |
3574 | } | |
58964a49 | 3575 | |
0821bcd4 | 3576 | long SSL_get_verify_result(const SSL *ssl) |
0f113f3e MC |
3577 | { |
3578 | return (ssl->verify_result); | |
3579 | } | |
3580 | ||
d9f1c639 | 3581 | size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 3582 | { |
6b8f5d0d | 3583 | if (outlen == 0) |
858618e7 NM |
3584 | return sizeof(ssl->s3->client_random); |
3585 | if (outlen > sizeof(ssl->s3->client_random)) | |
3586 | outlen = sizeof(ssl->s3->client_random); | |
3587 | memcpy(out, ssl->s3->client_random, outlen); | |
d9f1c639 | 3588 | return outlen; |
858618e7 NM |
3589 | } |
3590 | ||
d9f1c639 | 3591 | size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 3592 | { |
6b8f5d0d | 3593 | if (outlen == 0) |
858618e7 NM |
3594 | return sizeof(ssl->s3->server_random); |
3595 | if (outlen > sizeof(ssl->s3->server_random)) | |
3596 | outlen = sizeof(ssl->s3->server_random); | |
3597 | memcpy(out, ssl->s3->server_random, outlen); | |
d9f1c639 | 3598 | return outlen; |
858618e7 NM |
3599 | } |
3600 | ||
d9f1c639 | 3601 | size_t SSL_SESSION_get_master_key(const SSL_SESSION *session, |
a230b26e | 3602 | unsigned char *out, size_t outlen) |
858618e7 | 3603 | { |
d9f1c639 MC |
3604 | if (outlen == 0) |
3605 | return session->master_key_length; | |
8c1a5343 | 3606 | if (outlen > session->master_key_length) |
858618e7 NM |
3607 | outlen = session->master_key_length; |
3608 | memcpy(out, session->master_key, outlen); | |
d9f1c639 | 3609 | return outlen; |
858618e7 NM |
3610 | } |
3611 | ||
0f113f3e MC |
3612 | int SSL_set_ex_data(SSL *s, int idx, void *arg) |
3613 | { | |
3614 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | |
3615 | } | |
3616 | ||
3617 | void *SSL_get_ex_data(const SSL *s, int idx) | |
3618 | { | |
3619 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | |
3620 | } | |
3621 | ||
0f113f3e MC |
3622 | int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) |
3623 | { | |
3624 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | |
3625 | } | |
3626 | ||
3627 | void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) | |
3628 | { | |
3629 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | |
3630 | } | |
58964a49 | 3631 | |
4f43d0e7 | 3632 | int ssl_ok(SSL *s) |
0f113f3e MC |
3633 | { |
3634 | return (1); | |
3635 | } | |
dfeab068 | 3636 | |
0821bcd4 | 3637 | X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) |
0f113f3e MC |
3638 | { |
3639 | return (ctx->cert_store); | |
3640 | } | |
413c4f45 | 3641 | |
0f113f3e MC |
3642 | void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) |
3643 | { | |
222561fe | 3644 | X509_STORE_free(ctx->cert_store); |
0f113f3e MC |
3645 | ctx->cert_store = store; |
3646 | } | |
413c4f45 | 3647 | |
b50052db TS |
3648 | void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store) |
3649 | { | |
3650 | if (store != NULL) | |
3651 | X509_STORE_up_ref(store); | |
3652 | SSL_CTX_set_cert_store(ctx, store); | |
3653 | } | |
3654 | ||
0821bcd4 | 3655 | int SSL_want(const SSL *s) |
0f113f3e MC |
3656 | { |
3657 | return (s->rwstate); | |
3658 | } | |
413c4f45 | 3659 | |
0f113f3e | 3660 | /** |
4f43d0e7 BL |
3661 | * \brief Set the callback for generating temporary DH keys. |
3662 | * \param ctx the SSL context. | |
3663 | * \param dh the callback | |
3664 | */ | |
3665 | ||
bc36ee62 | 3666 | #ifndef OPENSSL_NO_DH |
0f113f3e MC |
3667 | void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, |
3668 | DH *(*dh) (SSL *ssl, int is_export, | |
3669 | int keylength)) | |
3670 | { | |
3671 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3672 | } | |
f8c3c05d | 3673 | |
0f113f3e MC |
3674 | void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export, |
3675 | int keylength)) | |
3676 | { | |
3677 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3678 | } | |
79df9d62 | 3679 | #endif |
15d21c2d | 3680 | |
ddac1974 NL |
3681 | #ifndef OPENSSL_NO_PSK |
3682 | int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) | |
0f113f3e MC |
3683 | { |
3684 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { | |
a230b26e | 3685 | SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); |
0f113f3e MC |
3686 | return 0; |
3687 | } | |
df6da24b | 3688 | OPENSSL_free(ctx->cert->psk_identity_hint); |
0f113f3e | 3689 | if (identity_hint != NULL) { |
7644a9ae | 3690 | ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 3691 | if (ctx->cert->psk_identity_hint == NULL) |
0f113f3e MC |
3692 | return 0; |
3693 | } else | |
df6da24b | 3694 | ctx->cert->psk_identity_hint = NULL; |
0f113f3e MC |
3695 | return 1; |
3696 | } | |
ddac1974 NL |
3697 | |
3698 | int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) | |
0f113f3e MC |
3699 | { |
3700 | if (s == NULL) | |
3701 | return 0; | |
3702 | ||
0f113f3e MC |
3703 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { |
3704 | SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); | |
3705 | return 0; | |
3706 | } | |
df6da24b | 3707 | OPENSSL_free(s->cert->psk_identity_hint); |
0f113f3e | 3708 | if (identity_hint != NULL) { |
7644a9ae | 3709 | s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 3710 | if (s->cert->psk_identity_hint == NULL) |
0f113f3e MC |
3711 | return 0; |
3712 | } else | |
df6da24b | 3713 | s->cert->psk_identity_hint = NULL; |
0f113f3e MC |
3714 | return 1; |
3715 | } | |
ddac1974 NL |
3716 | |
3717 | const char *SSL_get_psk_identity_hint(const SSL *s) | |
0f113f3e MC |
3718 | { |
3719 | if (s == NULL || s->session == NULL) | |
3720 | return NULL; | |
3721 | return (s->session->psk_identity_hint); | |
3722 | } | |
ddac1974 NL |
3723 | |
3724 | const char *SSL_get_psk_identity(const SSL *s) | |
0f113f3e MC |
3725 | { |
3726 | if (s == NULL || s->session == NULL) | |
3727 | return NULL; | |
3728 | return (s->session->psk_identity); | |
3729 | } | |
7806f3dd | 3730 | |
52b8dad8 | 3731 | void SSL_set_psk_client_callback(SSL *s, |
0f113f3e MC |
3732 | unsigned int (*cb) (SSL *ssl, |
3733 | const char *hint, | |
3734 | char *identity, | |
3735 | unsigned int | |
3736 | max_identity_len, | |
3737 | unsigned char *psk, | |
a230b26e | 3738 | unsigned int max_psk_len)) |
0f113f3e MC |
3739 | { |
3740 | s->psk_client_callback = cb; | |
3741 | } | |
7806f3dd NL |
3742 | |
3743 | void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, | |
0f113f3e MC |
3744 | unsigned int (*cb) (SSL *ssl, |
3745 | const char *hint, | |
3746 | char *identity, | |
3747 | unsigned int | |
3748 | max_identity_len, | |
3749 | unsigned char *psk, | |
3750 | unsigned int | |
3751 | max_psk_len)) | |
3752 | { | |
3753 | ctx->psk_client_callback = cb; | |
3754 | } | |
7806f3dd | 3755 | |
52b8dad8 | 3756 | void SSL_set_psk_server_callback(SSL *s, |
0f113f3e MC |
3757 | unsigned int (*cb) (SSL *ssl, |
3758 | const char *identity, | |
3759 | unsigned char *psk, | |
a230b26e | 3760 | unsigned int max_psk_len)) |
0f113f3e MC |
3761 | { |
3762 | s->psk_server_callback = cb; | |
3763 | } | |
7806f3dd NL |
3764 | |
3765 | void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, | |
0f113f3e MC |
3766 | unsigned int (*cb) (SSL *ssl, |
3767 | const char *identity, | |
3768 | unsigned char *psk, | |
3769 | unsigned int | |
3770 | max_psk_len)) | |
3771 | { | |
3772 | ctx->psk_server_callback = cb; | |
3773 | } | |
3774 | #endif | |
3775 | ||
3776 | void SSL_CTX_set_msg_callback(SSL_CTX *ctx, | |
3777 | void (*cb) (int write_p, int version, | |
3778 | int content_type, const void *buf, | |
3779 | size_t len, SSL *ssl, void *arg)) | |
3780 | { | |
3781 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
3782 | } | |
3783 | ||
3784 | void SSL_set_msg_callback(SSL *ssl, | |
3785 | void (*cb) (int write_p, int version, | |
3786 | int content_type, const void *buf, | |
3787 | size_t len, SSL *ssl, void *arg)) | |
3788 | { | |
3789 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
3790 | } | |
a661b653 | 3791 | |
7c2d4fee | 3792 | void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, |
0f113f3e MC |
3793 | int (*cb) (SSL *ssl, |
3794 | int | |
3795 | is_forward_secure)) | |
3796 | { | |
3797 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
3798 | (void (*)(void))cb); | |
3799 | } | |
3800 | ||
7c2d4fee | 3801 | void SSL_set_not_resumable_session_callback(SSL *ssl, |
0f113f3e MC |
3802 | int (*cb) (SSL *ssl, |
3803 | int is_forward_secure)) | |
3804 | { | |
3805 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
3806 | (void (*)(void))cb); | |
3807 | } | |
3808 | ||
3809 | /* | |
3810 | * Allocates new EVP_MD_CTX and sets pointer to it into given pointer | |
8483a003 | 3811 | * variable, freeing EVP_MD_CTX previously stored in that variable, if any. |
0f113f3e MC |
3812 | * If EVP_MD pointer is passed, initializes ctx with this md Returns newly |
3813 | * allocated ctx; | |
8671b898 | 3814 | */ |
b948e2c5 | 3815 | |
0f113f3e | 3816 | EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md) |
b948e2c5 | 3817 | { |
0f113f3e | 3818 | ssl_clear_hash_ctx(hash); |
bfb0641f | 3819 | *hash = EVP_MD_CTX_new(); |
5f3d93e4 | 3820 | if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) { |
bfb0641f | 3821 | EVP_MD_CTX_free(*hash); |
5f3d93e4 MC |
3822 | *hash = NULL; |
3823 | return NULL; | |
3824 | } | |
0f113f3e | 3825 | return *hash; |
b948e2c5 | 3826 | } |
0f113f3e MC |
3827 | |
3828 | void ssl_clear_hash_ctx(EVP_MD_CTX **hash) | |
b948e2c5 DSH |
3829 | { |
3830 | ||
0f113f3e | 3831 | if (*hash) |
bfb0641f | 3832 | EVP_MD_CTX_free(*hash); |
0f113f3e | 3833 | *hash = NULL; |
b948e2c5 | 3834 | } |
a661b653 | 3835 | |
48fbcbac | 3836 | /* Retrieve handshake hashes */ |
8c1a5343 MC |
3837 | int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen, |
3838 | size_t *hashlen) | |
48fbcbac | 3839 | { |
6e59a892 | 3840 | EVP_MD_CTX *ctx = NULL; |
28ba2541 | 3841 | EVP_MD_CTX *hdgst = s->s3->handshake_dgst; |
8c1a5343 MC |
3842 | int hashleni = EVP_MD_CTX_size(hdgst); |
3843 | int ret = 0; | |
3844 | ||
3845 | if (hashleni < 0 || (size_t)hashleni > outlen) | |
28ba2541 | 3846 | goto err; |
8c1a5343 | 3847 | |
bfb0641f | 3848 | ctx = EVP_MD_CTX_new(); |
8c1a5343 | 3849 | if (ctx == NULL) |
6e59a892 | 3850 | goto err; |
8c1a5343 | 3851 | |
6e59a892 RL |
3852 | if (!EVP_MD_CTX_copy_ex(ctx, hdgst) |
3853 | || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) | |
8c1a5343 MC |
3854 | goto err; |
3855 | ||
3856 | *hashlen = hashleni; | |
3857 | ||
3858 | ret = 1; | |
48fbcbac | 3859 | err: |
bfb0641f | 3860 | EVP_MD_CTX_free(ctx); |
48fbcbac DSH |
3861 | return ret; |
3862 | } | |
3863 | ||
b577fd0b | 3864 | int SSL_session_reused(SSL *s) |
0f113f3e MC |
3865 | { |
3866 | return s->hit; | |
3867 | } | |
08557cf2 | 3868 | |
87adf1fa | 3869 | int SSL_is_server(SSL *s) |
0f113f3e MC |
3870 | { |
3871 | return s->server; | |
3872 | } | |
87adf1fa | 3873 | |
47153c72 RS |
3874 | #if OPENSSL_API_COMPAT < 0x10100000L |
3875 | void SSL_set_debug(SSL *s, int debug) | |
3876 | { | |
3877 | /* Old function was do-nothing anyway... */ | |
3878 | (void)s; | |
3879 | (void)debug; | |
3880 | } | |
3881 | #endif | |
3882 | ||
b362ccab | 3883 | void SSL_set_security_level(SSL *s, int level) |
0f113f3e MC |
3884 | { |
3885 | s->cert->sec_level = level; | |
3886 | } | |
b362ccab DSH |
3887 | |
3888 | int SSL_get_security_level(const SSL *s) | |
0f113f3e MC |
3889 | { |
3890 | return s->cert->sec_level; | |
3891 | } | |
b362ccab | 3892 | |
0f113f3e | 3893 | void SSL_set_security_callback(SSL *s, |
a230b26e EK |
3894 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
3895 | int op, int bits, int nid, | |
3896 | void *other, void *ex)) | |
0f113f3e MC |
3897 | { |
3898 | s->cert->sec_cb = cb; | |
3899 | } | |
b362ccab | 3900 | |
a230b26e EK |
3901 | int (*SSL_get_security_callback(const SSL *s)) (const SSL *s, |
3902 | const SSL_CTX *ctx, int op, | |
3903 | int bits, int nid, void *other, | |
3904 | void *ex) { | |
0f113f3e MC |
3905 | return s->cert->sec_cb; |
3906 | } | |
b362ccab DSH |
3907 | |
3908 | void SSL_set0_security_ex_data(SSL *s, void *ex) | |
0f113f3e MC |
3909 | { |
3910 | s->cert->sec_ex = ex; | |
3911 | } | |
b362ccab DSH |
3912 | |
3913 | void *SSL_get0_security_ex_data(const SSL *s) | |
0f113f3e MC |
3914 | { |
3915 | return s->cert->sec_ex; | |
3916 | } | |
b362ccab DSH |
3917 | |
3918 | void SSL_CTX_set_security_level(SSL_CTX *ctx, int level) | |
0f113f3e MC |
3919 | { |
3920 | ctx->cert->sec_level = level; | |
3921 | } | |
b362ccab DSH |
3922 | |
3923 | int SSL_CTX_get_security_level(const SSL_CTX *ctx) | |
0f113f3e MC |
3924 | { |
3925 | return ctx->cert->sec_level; | |
3926 | } | |
b362ccab | 3927 | |
0f113f3e | 3928 | void SSL_CTX_set_security_callback(SSL_CTX *ctx, |
a230b26e EK |
3929 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
3930 | int op, int bits, int nid, | |
3931 | void *other, void *ex)) | |
0f113f3e MC |
3932 | { |
3933 | ctx->cert->sec_cb = cb; | |
3934 | } | |
b362ccab | 3935 | |
e4646a89 KR |
3936 | int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s, |
3937 | const SSL_CTX *ctx, | |
0f113f3e MC |
3938 | int op, int bits, |
3939 | int nid, | |
3940 | void *other, | |
3941 | void *ex) { | |
3942 | return ctx->cert->sec_cb; | |
3943 | } | |
b362ccab DSH |
3944 | |
3945 | void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex) | |
0f113f3e MC |
3946 | { |
3947 | ctx->cert->sec_ex = ex; | |
3948 | } | |
b362ccab DSH |
3949 | |
3950 | void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx) | |
0f113f3e MC |
3951 | { |
3952 | return ctx->cert->sec_ex; | |
3953 | } | |
b362ccab | 3954 | |
8106cb8b VD |
3955 | /* |
3956 | * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that | |
3957 | * can return unsigned long, instead of the generic long return value from the | |
3958 | * control interface. | |
3959 | */ | |
3960 | unsigned long SSL_CTX_get_options(const SSL_CTX *ctx) | |
3961 | { | |
3962 | return ctx->options; | |
3963 | } | |
a230b26e EK |
3964 | |
3965 | unsigned long SSL_get_options(const SSL *s) | |
8106cb8b VD |
3966 | { |
3967 | return s->options; | |
3968 | } | |
a230b26e | 3969 | |
8106cb8b VD |
3970 | unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op) |
3971 | { | |
3972 | return ctx->options |= op; | |
3973 | } | |
a230b26e | 3974 | |
8106cb8b VD |
3975 | unsigned long SSL_set_options(SSL *s, unsigned long op) |
3976 | { | |
3977 | return s->options |= op; | |
3978 | } | |
a230b26e | 3979 | |
8106cb8b VD |
3980 | unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op) |
3981 | { | |
3982 | return ctx->options &= ~op; | |
3983 | } | |
a230b26e | 3984 | |
8106cb8b VD |
3985 | unsigned long SSL_clear_options(SSL *s, unsigned long op) |
3986 | { | |
3987 | return s->options &= ~op; | |
3988 | } | |
3989 | ||
696178ed DSH |
3990 | STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s) |
3991 | { | |
3992 | return s->verified_chain; | |
3993 | } | |
3994 | ||
0f113f3e | 3995 | IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); |
ed29e82a RP |
3996 | |
3997 | #ifndef OPENSSL_NO_CT | |
3998 | ||
3999 | /* | |
4000 | * Moves SCTs from the |src| stack to the |dst| stack. | |
4001 | * The source of each SCT will be set to |origin|. | |
4002 | * If |dst| points to a NULL pointer, a new stack will be created and owned by | |
4003 | * the caller. | |
4004 | * Returns the number of SCTs moved, or a negative integer if an error occurs. | |
4005 | */ | |
a230b26e EK |
4006 | static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src, |
4007 | sct_source_t origin) | |
ed29e82a RP |
4008 | { |
4009 | int scts_moved = 0; | |
4010 | SCT *sct = NULL; | |
4011 | ||
4012 | if (*dst == NULL) { | |
4013 | *dst = sk_SCT_new_null(); | |
4014 | if (*dst == NULL) { | |
4015 | SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE); | |
4016 | goto err; | |
4017 | } | |
4018 | } | |
4019 | ||
4020 | while ((sct = sk_SCT_pop(src)) != NULL) { | |
4021 | if (SCT_set_source(sct, origin) != 1) | |
4022 | goto err; | |
4023 | ||
4024 | if (sk_SCT_push(*dst, sct) <= 0) | |
4025 | goto err; | |
4026 | scts_moved += 1; | |
4027 | } | |
4028 | ||
4029 | return scts_moved; | |
a230b26e | 4030 | err: |
ed29e82a | 4031 | if (sct != NULL) |
a230b26e | 4032 | sk_SCT_push(src, sct); /* Put the SCT back */ |
cc7113e8 | 4033 | return -1; |
ed29e82a RP |
4034 | } |
4035 | ||
4036 | /* | |
a230b26e | 4037 | * Look for data collected during ServerHello and parse if found. |
6b13bd1d | 4038 | * Returns the number of SCTs extracted. |
a230b26e | 4039 | */ |
ed29e82a RP |
4040 | static int ct_extract_tls_extension_scts(SSL *s) |
4041 | { | |
4042 | int scts_extracted = 0; | |
4043 | ||
4044 | if (s->tlsext_scts != NULL) { | |
4045 | const unsigned char *p = s->tlsext_scts; | |
4046 | STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->tlsext_scts_len); | |
4047 | ||
4048 | scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION); | |
4049 | ||
4050 | SCT_LIST_free(scts); | |
4051 | } | |
4052 | ||
4053 | return scts_extracted; | |
4054 | } | |
4055 | ||
4056 | /* | |
4057 | * Checks for an OCSP response and then attempts to extract any SCTs found if it | |
4058 | * contains an SCT X509 extension. They will be stored in |s->scts|. | |
4059 | * Returns: | |
4060 | * - The number of SCTs extracted, assuming an OCSP response exists. | |
4061 | * - 0 if no OCSP response exists or it contains no SCTs. | |
4062 | * - A negative integer if an error occurs. | |
4063 | */ | |
4064 | static int ct_extract_ocsp_response_scts(SSL *s) | |
4065 | { | |
a230b26e | 4066 | # ifndef OPENSSL_NO_OCSP |
ed29e82a RP |
4067 | int scts_extracted = 0; |
4068 | const unsigned char *p; | |
4069 | OCSP_BASICRESP *br = NULL; | |
4070 | OCSP_RESPONSE *rsp = NULL; | |
4071 | STACK_OF(SCT) *scts = NULL; | |
4072 | int i; | |
4073 | ||
4074 | if (s->tlsext_ocsp_resp == NULL || s->tlsext_ocsp_resplen == 0) | |
4075 | goto err; | |
4076 | ||
4077 | p = s->tlsext_ocsp_resp; | |
348240c6 | 4078 | rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->tlsext_ocsp_resplen); |
ed29e82a RP |
4079 | if (rsp == NULL) |
4080 | goto err; | |
4081 | ||
4082 | br = OCSP_response_get1_basic(rsp); | |
4083 | if (br == NULL) | |
4084 | goto err; | |
4085 | ||
4086 | for (i = 0; i < OCSP_resp_count(br); ++i) { | |
4087 | OCSP_SINGLERESP *single = OCSP_resp_get0(br, i); | |
4088 | ||
4089 | if (single == NULL) | |
4090 | continue; | |
4091 | ||
a230b26e EK |
4092 | scts = |
4093 | OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL); | |
4094 | scts_extracted = | |
4095 | ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE); | |
ed29e82a RP |
4096 | if (scts_extracted < 0) |
4097 | goto err; | |
4098 | } | |
a230b26e | 4099 | err: |
ed29e82a RP |
4100 | SCT_LIST_free(scts); |
4101 | OCSP_BASICRESP_free(br); | |
4102 | OCSP_RESPONSE_free(rsp); | |
4103 | return scts_extracted; | |
a230b26e | 4104 | # else |
3e41ac35 MC |
4105 | /* Behave as if no OCSP response exists */ |
4106 | return 0; | |
a230b26e | 4107 | # endif |
ed29e82a RP |
4108 | } |
4109 | ||
4110 | /* | |
4111 | * Attempts to extract SCTs from the peer certificate. | |
4112 | * Return the number of SCTs extracted, or a negative integer if an error | |
4113 | * occurs. | |
4114 | */ | |
4115 | static int ct_extract_x509v3_extension_scts(SSL *s) | |
4116 | { | |
4117 | int scts_extracted = 0; | |
3f3c7d26 | 4118 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
ed29e82a RP |
4119 | |
4120 | if (cert != NULL) { | |
4121 | STACK_OF(SCT) *scts = | |
4122 | X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL); | |
4123 | ||
4124 | scts_extracted = | |
4125 | ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION); | |
4126 | ||
4127 | SCT_LIST_free(scts); | |
4128 | } | |
4129 | ||
4130 | return scts_extracted; | |
4131 | } | |
4132 | ||
4133 | /* | |
4134 | * Attempts to find all received SCTs by checking TLS extensions, the OCSP | |
4135 | * response (if it exists) and X509v3 extensions in the certificate. | |
4136 | * Returns NULL if an error occurs. | |
4137 | */ | |
4138 | const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s) | |
4139 | { | |
4140 | if (!s->scts_parsed) { | |
4141 | if (ct_extract_tls_extension_scts(s) < 0 || | |
4142 | ct_extract_ocsp_response_scts(s) < 0 || | |
4143 | ct_extract_x509v3_extension_scts(s) < 0) | |
4144 | goto err; | |
4145 | ||
4146 | s->scts_parsed = 1; | |
4147 | } | |
4148 | return s->scts; | |
a230b26e | 4149 | err: |
ed29e82a RP |
4150 | return NULL; |
4151 | } | |
4152 | ||
a230b26e | 4153 | static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx, |
43341433 | 4154 | const STACK_OF(SCT) *scts, void *unused_arg) |
ed29e82a | 4155 | { |
43341433 VD |
4156 | return 1; |
4157 | } | |
4158 | ||
a230b26e | 4159 | static int ct_strict(const CT_POLICY_EVAL_CTX * ctx, |
43341433 VD |
4160 | const STACK_OF(SCT) *scts, void *unused_arg) |
4161 | { | |
4162 | int count = scts != NULL ? sk_SCT_num(scts) : 0; | |
4163 | int i; | |
ed29e82a | 4164 | |
43341433 VD |
4165 | for (i = 0; i < count; ++i) { |
4166 | SCT *sct = sk_SCT_value(scts, i); | |
4167 | int status = SCT_get_validation_status(sct); | |
4168 | ||
4169 | if (status == SCT_VALIDATION_STATUS_VALID) | |
4170 | return 1; | |
4171 | } | |
4172 | SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS); | |
4173 | return 0; | |
4174 | } | |
4175 | ||
4176 | int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback, | |
4177 | void *arg) | |
4178 | { | |
ed29e82a RP |
4179 | /* |
4180 | * Since code exists that uses the custom extension handler for CT, look | |
4181 | * for this and throw an error if they have already registered to use CT. | |
4182 | */ | |
4183 | if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx, | |
a230b26e EK |
4184 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4185 | { | |
ed29e82a RP |
4186 | SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK, |
4187 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4188 | return 0; |
ed29e82a RP |
4189 | } |
4190 | ||
ed29e82a | 4191 | if (callback != NULL) { |
a230b26e EK |
4192 | /* |
4193 | * If we are validating CT, then we MUST accept SCTs served via OCSP | |
4194 | */ | |
ed29e82a | 4195 | if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp)) |
43341433 | 4196 | return 0; |
ed29e82a RP |
4197 | } |
4198 | ||
43341433 VD |
4199 | s->ct_validation_callback = callback; |
4200 | s->ct_validation_callback_arg = arg; | |
4201 | ||
4202 | return 1; | |
ed29e82a RP |
4203 | } |
4204 | ||
43341433 | 4205 | int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx, |
a230b26e | 4206 | ssl_ct_validation_cb callback, void *arg) |
ed29e82a | 4207 | { |
ed29e82a RP |
4208 | /* |
4209 | * Since code exists that uses the custom extension handler for CT, look for | |
4210 | * this and throw an error if they have already registered to use CT. | |
4211 | */ | |
4212 | if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx, | |
a230b26e EK |
4213 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4214 | { | |
ed29e82a RP |
4215 | SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK, |
4216 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4217 | return 0; |
ed29e82a RP |
4218 | } |
4219 | ||
4220 | ctx->ct_validation_callback = callback; | |
4221 | ctx->ct_validation_callback_arg = arg; | |
43341433 | 4222 | return 1; |
ed29e82a RP |
4223 | } |
4224 | ||
43341433 | 4225 | int SSL_ct_is_enabled(const SSL *s) |
ed29e82a | 4226 | { |
43341433 | 4227 | return s->ct_validation_callback != NULL; |
ed29e82a RP |
4228 | } |
4229 | ||
43341433 | 4230 | int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx) |
ed29e82a | 4231 | { |
43341433 | 4232 | return ctx->ct_validation_callback != NULL; |
ed29e82a RP |
4233 | } |
4234 | ||
4d482ee2 | 4235 | int ssl_validate_ct(SSL *s) |
ed29e82a RP |
4236 | { |
4237 | int ret = 0; | |
3f3c7d26 | 4238 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
43341433 | 4239 | X509 *issuer; |
b9aec69a | 4240 | SSL_DANE *dane = &s->dane; |
ed29e82a RP |
4241 | CT_POLICY_EVAL_CTX *ctx = NULL; |
4242 | const STACK_OF(SCT) *scts; | |
4243 | ||
43341433 VD |
4244 | /* |
4245 | * If no callback is set, the peer is anonymous, or its chain is invalid, | |
4246 | * skip SCT validation - just return success. Applications that continue | |
4247 | * handshakes without certificates, with unverified chains, or pinned leaf | |
4248 | * certificates are outside the scope of the WebPKI and CT. | |
4249 | * | |
4250 | * The above exclusions notwithstanding the vast majority of peers will | |
4251 | * have rather ordinary certificate chains validated by typical | |
4252 | * applications that perform certificate verification and therefore will | |
4253 | * process SCTs when enabled. | |
4254 | */ | |
4255 | if (s->ct_validation_callback == NULL || cert == NULL || | |
4256 | s->verify_result != X509_V_OK || | |
a230b26e | 4257 | s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1) |
ed29e82a RP |
4258 | return 1; |
4259 | ||
43341433 VD |
4260 | /* |
4261 | * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3) | |
4262 | * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2 | |
4263 | */ | |
4264 | if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) { | |
4265 | switch (dane->mtlsa->usage) { | |
4266 | case DANETLS_USAGE_DANE_TA: | |
4267 | case DANETLS_USAGE_DANE_EE: | |
4268 | return 1; | |
4269 | } | |
ed29e82a RP |
4270 | } |
4271 | ||
ed29e82a RP |
4272 | ctx = CT_POLICY_EVAL_CTX_new(); |
4273 | if (ctx == NULL) { | |
4274 | SSLerr(SSL_F_SSL_VALIDATE_CT, ERR_R_MALLOC_FAILURE); | |
4275 | goto end; | |
4276 | } | |
4277 | ||
43341433 | 4278 | issuer = sk_X509_value(s->verified_chain, 1); |
a1bb7708 RP |
4279 | CT_POLICY_EVAL_CTX_set1_cert(ctx, cert); |
4280 | CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer); | |
4281 | CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx, s->ctx->ctlog_store); | |
ed29e82a RP |
4282 | |
4283 | scts = SSL_get0_peer_scts(s); | |
4284 | ||
43341433 VD |
4285 | /* |
4286 | * This function returns success (> 0) only when all the SCTs are valid, 0 | |
4287 | * when some are invalid, and < 0 on various internal errors (out of | |
4288 | * memory, etc.). Having some, or even all, invalid SCTs is not sufficient | |
4289 | * reason to abort the handshake, that decision is up to the callback. | |
4290 | * Therefore, we error out only in the unexpected case that the return | |
4291 | * value is negative. | |
4292 | * | |
4293 | * XXX: One might well argue that the return value of this function is an | |
f430ba31 | 4294 | * unfortunate design choice. Its job is only to determine the validation |
43341433 VD |
4295 | * status of each of the provided SCTs. So long as it correctly separates |
4296 | * the wheat from the chaff it should return success. Failure in this case | |
4297 | * ought to correspond to an inability to carry out its duties. | |
4298 | */ | |
4299 | if (SCT_LIST_validate(scts, ctx) < 0) { | |
ed29e82a RP |
4300 | SSLerr(SSL_F_SSL_VALIDATE_CT, SSL_R_SCT_VERIFICATION_FAILED); |
4301 | goto end; | |
4302 | } | |
4303 | ||
4304 | ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg); | |
4305 | if (ret < 0) | |
a230b26e | 4306 | ret = 0; /* This function returns 0 on failure */ |
ed29e82a | 4307 | |
a230b26e | 4308 | end: |
ed29e82a | 4309 | CT_POLICY_EVAL_CTX_free(ctx); |
f75b34c8 VD |
4310 | /* |
4311 | * With SSL_VERIFY_NONE the session may be cached and re-used despite a | |
4312 | * failure return code here. Also the application may wish the complete | |
4313 | * the handshake, and then disconnect cleanly at a higher layer, after | |
4314 | * checking the verification status of the completed connection. | |
4315 | * | |
4316 | * We therefore force a certificate verification failure which will be | |
4317 | * visible via SSL_get_verify_result() and cached as part of any resumed | |
4318 | * session. | |
4319 | * | |
4320 | * Note: the permissive callback is for information gathering only, always | |
4321 | * returns success, and does not affect verification status. Only the | |
4322 | * strict callback or a custom application-specified callback can trigger | |
4323 | * connection failure or record a verification error. | |
4324 | */ | |
4325 | if (ret <= 0) | |
4326 | s->verify_result = X509_V_ERR_NO_VALID_SCTS; | |
ed29e82a RP |
4327 | return ret; |
4328 | } | |
4329 | ||
43341433 VD |
4330 | int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode) |
4331 | { | |
4332 | switch (validation_mode) { | |
4333 | default: | |
4334 | SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
4335 | return 0; | |
4336 | case SSL_CT_VALIDATION_PERMISSIVE: | |
4337 | return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL); | |
4338 | case SSL_CT_VALIDATION_STRICT: | |
4339 | return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL); | |
4340 | } | |
4341 | } | |
4342 | ||
4343 | int SSL_enable_ct(SSL *s, int validation_mode) | |
4344 | { | |
4345 | switch (validation_mode) { | |
4346 | default: | |
4347 | SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
4348 | return 0; | |
4349 | case SSL_CT_VALIDATION_PERMISSIVE: | |
4350 | return SSL_set_ct_validation_callback(s, ct_permissive, NULL); | |
4351 | case SSL_CT_VALIDATION_STRICT: | |
4352 | return SSL_set_ct_validation_callback(s, ct_strict, NULL); | |
4353 | } | |
4354 | } | |
4355 | ||
ed29e82a RP |
4356 | int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx) |
4357 | { | |
328f36c5 | 4358 | return CTLOG_STORE_load_default_file(ctx->ctlog_store); |
ed29e82a RP |
4359 | } |
4360 | ||
4361 | int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path) | |
4362 | { | |
4363 | return CTLOG_STORE_load_file(ctx->ctlog_store, path); | |
4364 | } | |
4365 | ||
a230b26e | 4366 | void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs) |
8359b57f RP |
4367 | { |
4368 | CTLOG_STORE_free(ctx->ctlog_store); | |
4369 | ctx->ctlog_store = logs; | |
4370 | } | |
4371 | ||
4372 | const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx) | |
4373 | { | |
4374 | return ctx->ctlog_store; | |
4375 | } | |
4376 | ||
ed29e82a | 4377 | #endif |