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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 | |
44c04a2e MC |
474 | s->key_update = SSL_KEY_UPDATE_NONE; |
475 | ||
919ba009 VD |
476 | /* Reset DANE verification result state */ |
477 | s->dane.mdpth = -1; | |
478 | s->dane.pdpth = -1; | |
479 | X509_free(s->dane.mcert); | |
480 | s->dane.mcert = NULL; | |
481 | s->dane.mtlsa = NULL; | |
482 | ||
483 | /* Clear the verification result peername */ | |
484 | X509_VERIFY_PARAM_move_peername(s->param, NULL); | |
485 | ||
0f113f3e MC |
486 | /* |
487 | * Check to see if we were changed into a different method, if so, revert | |
488 | * back if we are not doing session-id reuse. | |
489 | */ | |
024f543c | 490 | if (!ossl_statem_get_in_handshake(s) && (s->session == NULL) |
0f113f3e MC |
491 | && (s->method != s->ctx->method)) { |
492 | s->method->ssl_free(s); | |
493 | s->method = s->ctx->method; | |
494 | if (!s->method->ssl_new(s)) | |
495 | return (0); | |
496 | } else | |
0f113f3e | 497 | s->method->ssl_clear(s); |
33d23b87 | 498 | |
af9752e5 | 499 | RECORD_LAYER_clear(&s->rlayer); |
33d23b87 | 500 | |
0f113f3e MC |
501 | return (1); |
502 | } | |
d02b48c6 | 503 | |
4f43d0e7 | 504 | /** Used to change an SSL_CTXs default SSL method type */ |
0f113f3e MC |
505 | int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) |
506 | { | |
507 | STACK_OF(SSL_CIPHER) *sk; | |
508 | ||
509 | ctx->method = meth; | |
510 | ||
511 | sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list), | |
512 | &(ctx->cipher_list_by_id), | |
513 | SSL_DEFAULT_CIPHER_LIST, ctx->cert); | |
514 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { | |
a230b26e | 515 | SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); |
0f113f3e MC |
516 | return (0); |
517 | } | |
518 | return (1); | |
519 | } | |
d02b48c6 | 520 | |
4f43d0e7 | 521 | SSL *SSL_new(SSL_CTX *ctx) |
0f113f3e MC |
522 | { |
523 | SSL *s; | |
524 | ||
525 | if (ctx == NULL) { | |
526 | SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX); | |
527 | return (NULL); | |
528 | } | |
529 | if (ctx->method == NULL) { | |
530 | SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); | |
531 | return (NULL); | |
532 | } | |
533 | ||
b51bce94 | 534 | s = OPENSSL_zalloc(sizeof(*s)); |
0f113f3e MC |
535 | if (s == NULL) |
536 | goto err; | |
0f113f3e | 537 | |
16203f7b AG |
538 | s->lock = CRYPTO_THREAD_lock_new(); |
539 | if (s->lock == NULL) { | |
540 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); | |
541 | OPENSSL_free(s); | |
542 | return NULL; | |
543 | } | |
544 | ||
c036e210 | 545 | RECORD_LAYER_init(&s->rlayer, s); |
28d59af8 | 546 | |
0f113f3e | 547 | s->options = ctx->options; |
5ae4ceb9 | 548 | s->dane.flags = ctx->dane.flags; |
7946ab33 KR |
549 | s->min_proto_version = ctx->min_proto_version; |
550 | s->max_proto_version = ctx->max_proto_version; | |
0f113f3e MC |
551 | s->mode = ctx->mode; |
552 | s->max_cert_list = ctx->max_cert_list; | |
0e04674e | 553 | s->references = 1; |
3fc8d856 | 554 | s->max_early_data = ctx->max_early_data; |
0f113f3e | 555 | |
2c382349 KR |
556 | /* |
557 | * Earlier library versions used to copy the pointer to the CERT, not | |
558 | * its contents; only when setting new parameters for the per-SSL | |
559 | * copy, ssl_cert_new would be called (and the direct reference to | |
560 | * the per-SSL_CTX settings would be lost, but those still were | |
561 | * indirectly accessed for various purposes, and for that reason they | |
562 | * used to be known as s->ctx->default_cert). Now we don't look at the | |
563 | * SSL_CTX's CERT after having duplicated it once. | |
564 | */ | |
565 | s->cert = ssl_cert_dup(ctx->cert); | |
566 | if (s->cert == NULL) | |
567 | goto err; | |
0f113f3e | 568 | |
52e1d7b1 | 569 | RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead); |
0f113f3e MC |
570 | s->msg_callback = ctx->msg_callback; |
571 | s->msg_callback_arg = ctx->msg_callback_arg; | |
572 | s->verify_mode = ctx->verify_mode; | |
573 | s->not_resumable_session_cb = ctx->not_resumable_session_cb; | |
0f113f3e MC |
574 | s->sid_ctx_length = ctx->sid_ctx_length; |
575 | OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); | |
576 | memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); | |
577 | s->verify_callback = ctx->default_verify_callback; | |
578 | s->generate_session_id = ctx->generate_session_id; | |
579 | ||
580 | s->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 581 | if (s->param == NULL) |
0f113f3e MC |
582 | goto err; |
583 | X509_VERIFY_PARAM_inherit(s->param, ctx->param); | |
0f113f3e MC |
584 | s->quiet_shutdown = ctx->quiet_shutdown; |
585 | s->max_send_fragment = ctx->max_send_fragment; | |
d102d9df MC |
586 | s->split_send_fragment = ctx->split_send_fragment; |
587 | s->max_pipelines = ctx->max_pipelines; | |
94777c9c MC |
588 | if (s->max_pipelines > 1) |
589 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
dad78fb1 MC |
590 | if (ctx->default_read_buf_len > 0) |
591 | SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len); | |
bf21446a | 592 | |
16203f7b | 593 | SSL_CTX_up_ref(ctx); |
0f113f3e | 594 | s->ctx = ctx; |
aff8c126 RS |
595 | s->ext.debug_cb = 0; |
596 | s->ext.debug_arg = NULL; | |
597 | s->ext.ticket_expected = 0; | |
598 | s->ext.status_type = ctx->ext.status_type; | |
599 | s->ext.status_expected = 0; | |
600 | s->ext.ocsp.ids = NULL; | |
601 | s->ext.ocsp.exts = NULL; | |
602 | s->ext.ocsp.resp = NULL; | |
603 | s->ext.ocsp.resp_len = 0; | |
16203f7b | 604 | SSL_CTX_up_ref(ctx); |
222da979 | 605 | s->session_ctx = ctx; |
a230b26e | 606 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
607 | if (ctx->ext.ecpointformats) { |
608 | s->ext.ecpointformats = | |
609 | OPENSSL_memdup(ctx->ext.ecpointformats, | |
610 | ctx->ext.ecpointformats_len); | |
611 | if (!s->ext.ecpointformats) | |
0f113f3e | 612 | goto err; |
aff8c126 RS |
613 | s->ext.ecpointformats_len = |
614 | ctx->ext.ecpointformats_len; | |
615 | } | |
616 | if (ctx->ext.supportedgroups) { | |
617 | s->ext.supportedgroups = | |
618 | OPENSSL_memdup(ctx->ext.supportedgroups, | |
619 | ctx->ext.supportedgroups_len); | |
620 | if (!s->ext.supportedgroups) | |
0f113f3e | 621 | goto err; |
aff8c126 | 622 | s->ext.supportedgroups_len = ctx->ext.supportedgroups_len; |
0f113f3e | 623 | } |
a230b26e EK |
624 | #endif |
625 | #ifndef OPENSSL_NO_NEXTPROTONEG | |
aff8c126 | 626 | s->ext.npn = NULL; |
a230b26e | 627 | #endif |
6f017a8f | 628 | |
aff8c126 RS |
629 | if (s->ctx->ext.alpn) { |
630 | s->ext.alpn = OPENSSL_malloc(s->ctx->ext.alpn_len); | |
631 | if (s->ext.alpn == NULL) | |
0f113f3e | 632 | goto err; |
aff8c126 RS |
633 | memcpy(s->ext.alpn, s->ctx->ext.alpn, s->ctx->ext.alpn_len); |
634 | s->ext.alpn_len = s->ctx->ext.alpn_len; | |
0f113f3e | 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 | |
44c04a2e MC |
645 | s->key_update = SSL_KEY_UPDATE_NONE; |
646 | ||
0f113f3e MC |
647 | if (!s->method->ssl_new(s)) |
648 | goto err; | |
d02b48c6 | 649 | |
0f113f3e | 650 | s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1; |
bf21446a | 651 | |
61986d32 | 652 | if (!SSL_clear(s)) |
69f68237 | 653 | goto err; |
58964a49 | 654 | |
25a807bc F |
655 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data)) |
656 | goto err; | |
58964a49 | 657 | |
ddac1974 | 658 | #ifndef OPENSSL_NO_PSK |
0f113f3e MC |
659 | s->psk_client_callback = ctx->psk_client_callback; |
660 | s->psk_server_callback = ctx->psk_server_callback; | |
ddac1974 NL |
661 | #endif |
662 | ||
07bbc92c MC |
663 | s->job = NULL; |
664 | ||
ed29e82a RP |
665 | #ifndef OPENSSL_NO_CT |
666 | if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback, | |
a230b26e | 667 | ctx->ct_validation_callback_arg)) |
ed29e82a RP |
668 | goto err; |
669 | #endif | |
670 | ||
16203f7b | 671 | return s; |
0f113f3e | 672 | err: |
62adbcee | 673 | SSL_free(s); |
0f113f3e | 674 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); |
16203f7b | 675 | return NULL; |
0f113f3e | 676 | } |
d02b48c6 | 677 | |
e417070c RS |
678 | int SSL_is_dtls(const SSL *s) |
679 | { | |
680 | return SSL_IS_DTLS(s) ? 1 : 0; | |
681 | } | |
682 | ||
c5ebfcab | 683 | int SSL_up_ref(SSL *s) |
a18a31e4 | 684 | { |
16203f7b | 685 | int i; |
c5ebfcab | 686 | |
2f545ae4 | 687 | if (CRYPTO_UP_REF(&s->references, &i, s->lock) <= 0) |
c5ebfcab F |
688 | return 0; |
689 | ||
690 | REF_PRINT_COUNT("SSL", s); | |
691 | REF_ASSERT_ISNT(i < 2); | |
692 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
693 | } |
694 | ||
0f113f3e MC |
695 | int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, |
696 | unsigned int sid_ctx_len) | |
697 | { | |
698 | if (sid_ctx_len > sizeof ctx->sid_ctx) { | |
699 | SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT, | |
700 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
701 | return 0; | |
702 | } | |
703 | ctx->sid_ctx_length = sid_ctx_len; | |
704 | memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); | |
4eb77b26 BM |
705 | |
706 | return 1; | |
0f113f3e | 707 | } |
4eb77b26 | 708 | |
0f113f3e MC |
709 | int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, |
710 | unsigned int sid_ctx_len) | |
711 | { | |
712 | if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { | |
713 | SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT, | |
714 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
715 | return 0; | |
716 | } | |
717 | ssl->sid_ctx_length = sid_ctx_len; | |
718 | memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); | |
b4cadc6e BL |
719 | |
720 | return 1; | |
0f113f3e | 721 | } |
b4cadc6e | 722 | |
dc644fe2 | 723 | int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) |
0f113f3e | 724 | { |
16203f7b | 725 | CRYPTO_THREAD_write_lock(ctx->lock); |
0f113f3e | 726 | ctx->generate_session_id = cb; |
16203f7b | 727 | CRYPTO_THREAD_unlock(ctx->lock); |
0f113f3e MC |
728 | return 1; |
729 | } | |
dc644fe2 GT |
730 | |
731 | int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) | |
0f113f3e | 732 | { |
16203f7b | 733 | CRYPTO_THREAD_write_lock(ssl->lock); |
0f113f3e | 734 | ssl->generate_session_id = cb; |
16203f7b | 735 | CRYPTO_THREAD_unlock(ssl->lock); |
0f113f3e MC |
736 | return 1; |
737 | } | |
dc644fe2 | 738 | |
f85c9904 | 739 | int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, |
0f113f3e MC |
740 | unsigned int id_len) |
741 | { | |
742 | /* | |
743 | * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how | |
744 | * we can "construct" a session to give us the desired check - ie. to | |
745 | * find if there's a session in the hash table that would conflict with | |
746 | * any new session built out of this id/id_len and the ssl_version in use | |
747 | * by this SSL. | |
748 | */ | |
749 | SSL_SESSION r, *p; | |
750 | ||
751 | if (id_len > sizeof r.session_id) | |
752 | return 0; | |
753 | ||
754 | r.ssl_version = ssl->version; | |
755 | r.session_id_length = id_len; | |
756 | memcpy(r.session_id, id, id_len); | |
757 | ||
e2bb9b9b TS |
758 | CRYPTO_THREAD_read_lock(ssl->session_ctx->lock); |
759 | p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r); | |
760 | CRYPTO_THREAD_unlock(ssl->session_ctx->lock); | |
0f113f3e MC |
761 | return (p != NULL); |
762 | } | |
dc644fe2 | 763 | |
bb7cd4e3 | 764 | int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) |
0f113f3e MC |
765 | { |
766 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
767 | } | |
bb7cd4e3 DSH |
768 | |
769 | int SSL_set_purpose(SSL *s, int purpose) | |
0f113f3e MC |
770 | { |
771 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
772 | } | |
926a56bf | 773 | |
bb7cd4e3 | 774 | int SSL_CTX_set_trust(SSL_CTX *s, int trust) |
0f113f3e MC |
775 | { |
776 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
777 | } | |
bb7cd4e3 DSH |
778 | |
779 | int SSL_set_trust(SSL *s, int trust) | |
0f113f3e MC |
780 | { |
781 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
782 | } | |
bb7cd4e3 | 783 | |
919ba009 VD |
784 | int SSL_set1_host(SSL *s, const char *hostname) |
785 | { | |
786 | return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); | |
787 | } | |
788 | ||
789 | int SSL_add1_host(SSL *s, const char *hostname) | |
790 | { | |
791 | return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0); | |
792 | } | |
793 | ||
794 | void SSL_set_hostflags(SSL *s, unsigned int flags) | |
795 | { | |
796 | X509_VERIFY_PARAM_set_hostflags(s->param, flags); | |
797 | } | |
798 | ||
4588cb44 | 799 | const char *SSL_get0_peername(SSL *s) |
919ba009 VD |
800 | { |
801 | return X509_VERIFY_PARAM_get0_peername(s->param); | |
802 | } | |
803 | ||
804 | int SSL_CTX_dane_enable(SSL_CTX *ctx) | |
805 | { | |
806 | return dane_ctx_enable(&ctx->dane); | |
807 | } | |
808 | ||
5ae4ceb9 VD |
809 | unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags) |
810 | { | |
811 | unsigned long orig = ctx->dane.flags; | |
812 | ||
813 | ctx->dane.flags |= flags; | |
814 | return orig; | |
815 | } | |
816 | ||
817 | unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags) | |
818 | { | |
819 | unsigned long orig = ctx->dane.flags; | |
820 | ||
821 | ctx->dane.flags &= ~flags; | |
822 | return orig; | |
823 | } | |
824 | ||
919ba009 VD |
825 | int SSL_dane_enable(SSL *s, const char *basedomain) |
826 | { | |
b9aec69a | 827 | SSL_DANE *dane = &s->dane; |
919ba009 VD |
828 | |
829 | if (s->ctx->dane.mdmax == 0) { | |
830 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED); | |
831 | return 0; | |
832 | } | |
833 | if (dane->trecs != NULL) { | |
834 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED); | |
835 | return 0; | |
836 | } | |
837 | ||
8d887efa VD |
838 | /* |
839 | * Default SNI name. This rejects empty names, while set1_host below | |
840 | * accepts them and disables host name checks. To avoid side-effects with | |
841 | * invalid input, set the SNI name first. | |
842 | */ | |
aff8c126 | 843 | if (s->ext.hostname == NULL) { |
dccd20d1 | 844 | if (!SSL_set_tlsext_host_name(s, basedomain)) { |
8d887efa | 845 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); |
dccd20d1 | 846 | return -1; |
8d887efa VD |
847 | } |
848 | } | |
849 | ||
919ba009 VD |
850 | /* Primary RFC6125 reference identifier */ |
851 | if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) { | |
852 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); | |
853 | return -1; | |
854 | } | |
855 | ||
919ba009 VD |
856 | dane->mdpth = -1; |
857 | dane->pdpth = -1; | |
858 | dane->dctx = &s->ctx->dane; | |
859 | dane->trecs = sk_danetls_record_new_null(); | |
860 | ||
861 | if (dane->trecs == NULL) { | |
862 | SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE); | |
863 | return -1; | |
864 | } | |
865 | return 1; | |
866 | } | |
867 | ||
5ae4ceb9 VD |
868 | unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags) |
869 | { | |
870 | unsigned long orig = ssl->dane.flags; | |
871 | ||
872 | ssl->dane.flags |= flags; | |
873 | return orig; | |
874 | } | |
875 | ||
876 | unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags) | |
877 | { | |
878 | unsigned long orig = ssl->dane.flags; | |
879 | ||
880 | ssl->dane.flags &= ~flags; | |
881 | return orig; | |
882 | } | |
883 | ||
919ba009 VD |
884 | int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki) |
885 | { | |
b9aec69a | 886 | SSL_DANE *dane = &s->dane; |
919ba009 | 887 | |
c0a445a9 | 888 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
889 | return -1; |
890 | if (dane->mtlsa) { | |
891 | if (mcert) | |
892 | *mcert = dane->mcert; | |
893 | if (mspki) | |
894 | *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL; | |
895 | } | |
896 | return dane->mdpth; | |
897 | } | |
898 | ||
899 | int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector, | |
900 | uint8_t *mtype, unsigned const char **data, size_t *dlen) | |
901 | { | |
b9aec69a | 902 | SSL_DANE *dane = &s->dane; |
919ba009 | 903 | |
c0a445a9 | 904 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
905 | return -1; |
906 | if (dane->mtlsa) { | |
907 | if (usage) | |
908 | *usage = dane->mtlsa->usage; | |
909 | if (selector) | |
910 | *selector = dane->mtlsa->selector; | |
911 | if (mtype) | |
912 | *mtype = dane->mtlsa->mtype; | |
913 | if (data) | |
914 | *data = dane->mtlsa->data; | |
915 | if (dlen) | |
916 | *dlen = dane->mtlsa->dlen; | |
917 | } | |
918 | return dane->mdpth; | |
919 | } | |
920 | ||
b9aec69a | 921 | SSL_DANE *SSL_get0_dane(SSL *s) |
919ba009 VD |
922 | { |
923 | return &s->dane; | |
924 | } | |
925 | ||
926 | int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector, | |
927 | uint8_t mtype, unsigned char *data, size_t dlen) | |
928 | { | |
929 | return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen); | |
930 | } | |
931 | ||
a230b26e EK |
932 | int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype, |
933 | uint8_t ord) | |
919ba009 VD |
934 | { |
935 | return dane_mtype_set(&ctx->dane, md, mtype, ord); | |
936 | } | |
937 | ||
ccf11751 | 938 | int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) |
0f113f3e MC |
939 | { |
940 | return X509_VERIFY_PARAM_set1(ctx->param, vpm); | |
941 | } | |
ccf11751 DSH |
942 | |
943 | int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) | |
0f113f3e MC |
944 | { |
945 | return X509_VERIFY_PARAM_set1(ssl->param, vpm); | |
946 | } | |
ccf11751 | 947 | |
7af31968 | 948 | X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx) |
0f113f3e MC |
949 | { |
950 | return ctx->param; | |
951 | } | |
7af31968 DSH |
952 | |
953 | X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl) | |
0f113f3e MC |
954 | { |
955 | return ssl->param; | |
956 | } | |
7af31968 | 957 | |
a5ee80b9 | 958 | void SSL_certs_clear(SSL *s) |
0f113f3e MC |
959 | { |
960 | ssl_cert_clear_certs(s->cert); | |
961 | } | |
a5ee80b9 | 962 | |
4f43d0e7 | 963 | void SSL_free(SSL *s) |
0f113f3e MC |
964 | { |
965 | int i; | |
58964a49 | 966 | |
0f113f3e MC |
967 | if (s == NULL) |
968 | return; | |
e03ddfae | 969 | |
2f545ae4 | 970 | CRYPTO_DOWN_REF(&s->references, &i, s->lock); |
f3f1cf84 | 971 | REF_PRINT_COUNT("SSL", s); |
0f113f3e MC |
972 | if (i > 0) |
973 | return; | |
f3f1cf84 | 974 | REF_ASSERT_ISNT(i < 0); |
d02b48c6 | 975 | |
222561fe | 976 | X509_VERIFY_PARAM_free(s->param); |
919ba009 | 977 | dane_final(&s->dane); |
0f113f3e MC |
978 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); |
979 | ||
2e7dc7cd MC |
980 | ssl_free_wbio_buffer(s); |
981 | ||
65e2d672 | 982 | BIO_free_all(s->wbio); |
325cfa85 | 983 | BIO_free_all(s->rbio); |
0f113f3e | 984 | |
25aaa98a | 985 | BUF_MEM_free(s->init_buf); |
0f113f3e MC |
986 | |
987 | /* add extra stuff */ | |
25aaa98a RS |
988 | sk_SSL_CIPHER_free(s->cipher_list); |
989 | sk_SSL_CIPHER_free(s->cipher_list_by_id); | |
0f113f3e MC |
990 | |
991 | /* Make the next call work :-) */ | |
992 | if (s->session != NULL) { | |
993 | ssl_clear_bad_session(s); | |
994 | SSL_SESSION_free(s->session); | |
995 | } | |
996 | ||
d31fb0b5 | 997 | clear_ciphers(s); |
d02b48c6 | 998 | |
e0e920b1 | 999 | ssl_cert_free(s->cert); |
0f113f3e | 1000 | /* Free up if allocated */ |
d02b48c6 | 1001 | |
aff8c126 | 1002 | OPENSSL_free(s->ext.hostname); |
222da979 | 1003 | SSL_CTX_free(s->session_ctx); |
e481f9b9 | 1004 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
1005 | OPENSSL_free(s->ext.ecpointformats); |
1006 | OPENSSL_free(s->ext.supportedgroups); | |
a230b26e | 1007 | #endif /* OPENSSL_NO_EC */ |
aff8c126 | 1008 | sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free); |
3e41ac35 | 1009 | #ifndef OPENSSL_NO_OCSP |
aff8c126 | 1010 | sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free); |
3e41ac35 | 1011 | #endif |
ed29e82a RP |
1012 | #ifndef OPENSSL_NO_CT |
1013 | SCT_LIST_free(s->scts); | |
aff8c126 | 1014 | OPENSSL_free(s->ext.scts); |
ed29e82a | 1015 | #endif |
aff8c126 RS |
1016 | OPENSSL_free(s->ext.ocsp.resp); |
1017 | OPENSSL_free(s->ext.alpn); | |
6b1bb98f | 1018 | OPENSSL_free(s->clienthello); |
0f113f3e | 1019 | |
222561fe | 1020 | sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free); |
0f113f3e | 1021 | |
696178ed DSH |
1022 | sk_X509_pop_free(s->verified_chain, X509_free); |
1023 | ||
0f113f3e MC |
1024 | if (s->method != NULL) |
1025 | s->method->ssl_free(s); | |
1026 | ||
f161995e | 1027 | RECORD_LAYER_release(&s->rlayer); |
33d23b87 | 1028 | |
e0e920b1 | 1029 | SSL_CTX_free(s->ctx); |
7c3908dd | 1030 | |
ff75a257 MC |
1031 | ASYNC_WAIT_CTX_free(s->waitctx); |
1032 | ||
e481f9b9 | 1033 | #if !defined(OPENSSL_NO_NEXTPROTONEG) |
aff8c126 | 1034 | OPENSSL_free(s->ext.npn); |
ee2ffc27 BL |
1035 | #endif |
1036 | ||
e783bae2 | 1037 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 1038 | sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); |
0f113f3e MC |
1039 | #endif |
1040 | ||
16203f7b AG |
1041 | CRYPTO_THREAD_lock_free(s->lock); |
1042 | ||
0f113f3e MC |
1043 | OPENSSL_free(s); |
1044 | } | |
1045 | ||
65e2d672 | 1046 | void SSL_set0_rbio(SSL *s, BIO *rbio) |
3ffbe008 | 1047 | { |
65e2d672 | 1048 | BIO_free_all(s->rbio); |
3ffbe008 MC |
1049 | s->rbio = rbio; |
1050 | } | |
1051 | ||
65e2d672 | 1052 | void SSL_set0_wbio(SSL *s, BIO *wbio) |
0f113f3e MC |
1053 | { |
1054 | /* | |
1055 | * If the output buffering BIO is still in place, remove it | |
1056 | */ | |
2e7dc7cd MC |
1057 | if (s->bbio != NULL) |
1058 | s->wbio = BIO_pop(s->wbio); | |
1059 | ||
65e2d672 | 1060 | BIO_free_all(s->wbio); |
0f113f3e | 1061 | s->wbio = wbio; |
2e7dc7cd MC |
1062 | |
1063 | /* Re-attach |bbio| to the new |wbio|. */ | |
1064 | if (s->bbio != NULL) | |
1065 | s->wbio = BIO_push(s->bbio, s->wbio); | |
0f113f3e | 1066 | } |
d02b48c6 | 1067 | |
3ffbe008 MC |
1068 | void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) |
1069 | { | |
65e2d672 MC |
1070 | /* |
1071 | * For historical reasons, this function has many different cases in | |
1072 | * ownership handling. | |
1073 | */ | |
1074 | ||
1075 | /* If nothing has changed, do nothing */ | |
1076 | if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s)) | |
1077 | return; | |
1078 | ||
1079 | /* | |
1080 | * If the two arguments are equal then one fewer reference is granted by the | |
1081 | * caller than we want to take | |
1082 | */ | |
1083 | if (rbio != NULL && rbio == wbio) | |
1084 | BIO_up_ref(rbio); | |
1085 | ||
1086 | /* | |
1087 | * If only the wbio is changed only adopt one reference. | |
1088 | */ | |
1089 | if (rbio == SSL_get_rbio(s)) { | |
1090 | SSL_set0_wbio(s, wbio); | |
1091 | return; | |
1092 | } | |
1093 | /* | |
1094 | * There is an asymmetry here for historical reasons. If only the rbio is | |
1095 | * changed AND the rbio and wbio were originally different, then we only | |
1096 | * adopt one reference. | |
1097 | */ | |
1098 | if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) { | |
1099 | SSL_set0_rbio(s, rbio); | |
1100 | return; | |
1101 | } | |
1102 | ||
1103 | /* Otherwise, adopt both references. */ | |
1104 | SSL_set0_rbio(s, rbio); | |
1105 | SSL_set0_wbio(s, wbio); | |
3ffbe008 MC |
1106 | } |
1107 | ||
0821bcd4 | 1108 | BIO *SSL_get_rbio(const SSL *s) |
0f113f3e | 1109 | { |
2e7dc7cd | 1110 | return s->rbio; |
0f113f3e | 1111 | } |
d02b48c6 | 1112 | |
0821bcd4 | 1113 | BIO *SSL_get_wbio(const SSL *s) |
0f113f3e | 1114 | { |
2e7dc7cd MC |
1115 | if (s->bbio != NULL) { |
1116 | /* | |
1117 | * If |bbio| is active, the true caller-configured BIO is its | |
1118 | * |next_bio|. | |
1119 | */ | |
1120 | return BIO_next(s->bbio); | |
1121 | } | |
1122 | return s->wbio; | |
0f113f3e | 1123 | } |
d02b48c6 | 1124 | |
0821bcd4 | 1125 | int SSL_get_fd(const SSL *s) |
0f113f3e | 1126 | { |
2e7dc7cd | 1127 | return SSL_get_rfd(s); |
0f113f3e | 1128 | } |
24cbf3ef | 1129 | |
0821bcd4 | 1130 | int SSL_get_rfd(const SSL *s) |
0f113f3e MC |
1131 | { |
1132 | int ret = -1; | |
1133 | BIO *b, *r; | |
1134 | ||
1135 | b = SSL_get_rbio(s); | |
1136 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1137 | if (r != NULL) | |
1138 | BIO_get_fd(r, &ret); | |
1139 | return (ret); | |
1140 | } | |
d02b48c6 | 1141 | |
0821bcd4 | 1142 | int SSL_get_wfd(const SSL *s) |
0f113f3e MC |
1143 | { |
1144 | int ret = -1; | |
1145 | BIO *b, *r; | |
1146 | ||
1147 | b = SSL_get_wbio(s); | |
1148 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1149 | if (r != NULL) | |
1150 | BIO_get_fd(r, &ret); | |
1151 | return (ret); | |
1152 | } | |
24cbf3ef | 1153 | |
bc36ee62 | 1154 | #ifndef OPENSSL_NO_SOCK |
0f113f3e MC |
1155 | int SSL_set_fd(SSL *s, int fd) |
1156 | { | |
1157 | int ret = 0; | |
1158 | BIO *bio = NULL; | |
1159 | ||
1160 | bio = BIO_new(BIO_s_socket()); | |
1161 | ||
1162 | if (bio == NULL) { | |
1163 | SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB); | |
1164 | goto err; | |
1165 | } | |
1166 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
1167 | SSL_set_bio(s, bio, bio); | |
1168 | ret = 1; | |
1169 | err: | |
1170 | return (ret); | |
1171 | } | |
d02b48c6 | 1172 | |
0f113f3e MC |
1173 | int SSL_set_wfd(SSL *s, int fd) |
1174 | { | |
2e7dc7cd | 1175 | BIO *rbio = SSL_get_rbio(s); |
0f113f3e | 1176 | |
2e7dc7cd MC |
1177 | if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET |
1178 | || (int)BIO_get_fd(rbio, NULL) != fd) { | |
1179 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1180 | |
1181 | if (bio == NULL) { | |
1182 | SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1183 | return 0; |
0f113f3e MC |
1184 | } |
1185 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
65e2d672 | 1186 | SSL_set0_wbio(s, bio); |
2e7dc7cd | 1187 | } else { |
65e2d672 MC |
1188 | BIO_up_ref(rbio); |
1189 | SSL_set0_wbio(s, rbio); | |
2e7dc7cd MC |
1190 | } |
1191 | return 1; | |
0f113f3e MC |
1192 | } |
1193 | ||
1194 | int SSL_set_rfd(SSL *s, int fd) | |
1195 | { | |
2e7dc7cd | 1196 | BIO *wbio = SSL_get_wbio(s); |
0f113f3e | 1197 | |
2e7dc7cd MC |
1198 | if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET |
1199 | || ((int)BIO_get_fd(wbio, NULL) != fd)) { | |
1200 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1201 | |
1202 | if (bio == NULL) { | |
1203 | SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1204 | return 0; |
0f113f3e MC |
1205 | } |
1206 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
65e2d672 | 1207 | SSL_set0_rbio(s, bio); |
2e7dc7cd | 1208 | } else { |
65e2d672 MC |
1209 | BIO_up_ref(wbio); |
1210 | SSL_set0_rbio(s, wbio); | |
2e7dc7cd MC |
1211 | } |
1212 | ||
1213 | return 1; | |
0f113f3e MC |
1214 | } |
1215 | #endif | |
ca03109c BM |
1216 | |
1217 | /* return length of latest Finished message we sent, copy to 'buf' */ | |
0821bcd4 | 1218 | size_t SSL_get_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1219 | { |
1220 | size_t ret = 0; | |
1221 | ||
1222 | if (s->s3 != NULL) { | |
1223 | ret = s->s3->tmp.finish_md_len; | |
1224 | if (count > ret) | |
1225 | count = ret; | |
1226 | memcpy(buf, s->s3->tmp.finish_md, count); | |
1227 | } | |
1228 | return ret; | |
1229 | } | |
ca03109c BM |
1230 | |
1231 | /* return length of latest Finished message we expected, copy to 'buf' */ | |
0821bcd4 | 1232 | size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1233 | { |
1234 | size_t ret = 0; | |
ca03109c | 1235 | |
0f113f3e MC |
1236 | if (s->s3 != NULL) { |
1237 | ret = s->s3->tmp.peer_finish_md_len; | |
1238 | if (count > ret) | |
1239 | count = ret; | |
1240 | memcpy(buf, s->s3->tmp.peer_finish_md, count); | |
1241 | } | |
1242 | return ret; | |
1243 | } | |
ca03109c | 1244 | |
0821bcd4 | 1245 | int SSL_get_verify_mode(const SSL *s) |
0f113f3e MC |
1246 | { |
1247 | return (s->verify_mode); | |
1248 | } | |
d02b48c6 | 1249 | |
0821bcd4 | 1250 | int SSL_get_verify_depth(const SSL *s) |
0f113f3e MC |
1251 | { |
1252 | return X509_VERIFY_PARAM_get_depth(s->param); | |
1253 | } | |
7f89714e | 1254 | |
0f113f3e MC |
1255 | int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) { |
1256 | return (s->verify_callback); | |
1257 | } | |
d02b48c6 | 1258 | |
0821bcd4 | 1259 | int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) |
0f113f3e MC |
1260 | { |
1261 | return (ctx->verify_mode); | |
1262 | } | |
d02b48c6 | 1263 | |
0821bcd4 | 1264 | int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) |
0f113f3e MC |
1265 | { |
1266 | return X509_VERIFY_PARAM_get_depth(ctx->param); | |
1267 | } | |
1268 | ||
1269 | int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) { | |
1270 | return (ctx->default_verify_callback); | |
1271 | } | |
1272 | ||
1273 | void SSL_set_verify(SSL *s, int mode, | |
1274 | int (*callback) (int ok, X509_STORE_CTX *ctx)) | |
1275 | { | |
1276 | s->verify_mode = mode; | |
1277 | if (callback != NULL) | |
1278 | s->verify_callback = callback; | |
1279 | } | |
1280 | ||
1281 | void SSL_set_verify_depth(SSL *s, int depth) | |
1282 | { | |
1283 | X509_VERIFY_PARAM_set_depth(s->param, depth); | |
1284 | } | |
1285 | ||
1286 | void SSL_set_read_ahead(SSL *s, int yes) | |
1287 | { | |
52e1d7b1 | 1288 | RECORD_LAYER_set_read_ahead(&s->rlayer, yes); |
0f113f3e | 1289 | } |
d02b48c6 | 1290 | |
0821bcd4 | 1291 | int SSL_get_read_ahead(const SSL *s) |
0f113f3e | 1292 | { |
52e1d7b1 | 1293 | return RECORD_LAYER_get_read_ahead(&s->rlayer); |
0f113f3e | 1294 | } |
d02b48c6 | 1295 | |
0821bcd4 | 1296 | int SSL_pending(const SSL *s) |
0f113f3e | 1297 | { |
8b0e934a MC |
1298 | size_t pending = s->method->ssl_pending(s); |
1299 | ||
0f113f3e MC |
1300 | /* |
1301 | * SSL_pending cannot work properly if read-ahead is enabled | |
1302 | * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is | |
1303 | * impossible to fix since SSL_pending cannot report errors that may be | |
1304 | * observed while scanning the new data. (Note that SSL_pending() is | |
1305 | * often used as a boolean value, so we'd better not return -1.) | |
8b0e934a MC |
1306 | * |
1307 | * SSL_pending also cannot work properly if the value >INT_MAX. In that case | |
1308 | * we just return INT_MAX. | |
0f113f3e | 1309 | */ |
348240c6 | 1310 | return pending < INT_MAX ? (int)pending : INT_MAX; |
0f113f3e | 1311 | } |
d02b48c6 | 1312 | |
49580f25 MC |
1313 | int SSL_has_pending(const SSL *s) |
1314 | { | |
1315 | /* | |
1316 | * Similar to SSL_pending() but returns a 1 to indicate that we have | |
1317 | * unprocessed data available or 0 otherwise (as opposed to the number of | |
1318 | * bytes available). Unlike SSL_pending() this will take into account | |
1319 | * read_ahead data. A 1 return simply indicates that we have unprocessed | |
1320 | * data. That data may not result in any application data, or we may fail | |
1321 | * to parse the records for some reason. | |
1322 | */ | |
1323 | if (SSL_pending(s)) | |
1324 | return 1; | |
1325 | ||
1326 | return RECORD_LAYER_read_pending(&s->rlayer); | |
1327 | } | |
1328 | ||
0821bcd4 | 1329 | X509 *SSL_get_peer_certificate(const SSL *s) |
0f113f3e MC |
1330 | { |
1331 | X509 *r; | |
d02b48c6 | 1332 | |
0f113f3e MC |
1333 | if ((s == NULL) || (s->session == NULL)) |
1334 | r = NULL; | |
1335 | else | |
1336 | r = s->session->peer; | |
d02b48c6 | 1337 | |
0f113f3e MC |
1338 | if (r == NULL) |
1339 | return (r); | |
d02b48c6 | 1340 | |
05f0fb9f | 1341 | X509_up_ref(r); |
0f113f3e MC |
1342 | |
1343 | return (r); | |
1344 | } | |
d02b48c6 | 1345 | |
0821bcd4 | 1346 | STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) |
0f113f3e MC |
1347 | { |
1348 | STACK_OF(X509) *r; | |
1349 | ||
c34b0f99 | 1350 | if ((s == NULL) || (s->session == NULL)) |
0f113f3e MC |
1351 | r = NULL; |
1352 | else | |
c34b0f99 | 1353 | r = s->session->peer_chain; |
0f113f3e MC |
1354 | |
1355 | /* | |
1356 | * If we are a client, cert_chain includes the peer's own certificate; if | |
1357 | * we are a server, it does not. | |
1358 | */ | |
1359 | ||
1360 | return (r); | |
1361 | } | |
1362 | ||
1363 | /* | |
1364 | * Now in theory, since the calling process own 't' it should be safe to | |
1365 | * modify. We need to be able to read f without being hassled | |
1366 | */ | |
17dd65e6 | 1367 | int SSL_copy_session_id(SSL *t, const SSL *f) |
0f113f3e | 1368 | { |
16203f7b | 1369 | int i; |
0f113f3e | 1370 | /* Do we need to to SSL locking? */ |
61986d32 | 1371 | if (!SSL_set_session(t, SSL_get_session(f))) { |
17dd65e6 | 1372 | return 0; |
69f68237 | 1373 | } |
0f113f3e MC |
1374 | |
1375 | /* | |
87d9cafa | 1376 | * what if we are setup for one protocol version but want to talk another |
0f113f3e MC |
1377 | */ |
1378 | if (t->method != f->method) { | |
919ba009 VD |
1379 | t->method->ssl_free(t); |
1380 | t->method = f->method; | |
1381 | if (t->method->ssl_new(t) == 0) | |
1382 | return 0; | |
0f113f3e MC |
1383 | } |
1384 | ||
2f545ae4 | 1385 | CRYPTO_UP_REF(&f->cert->references, &i, f->cert->lock); |
24a0d393 KR |
1386 | ssl_cert_free(t->cert); |
1387 | t->cert = f->cert; | |
348240c6 | 1388 | if (!SSL_set_session_id_context(t, f->sid_ctx, (int)f->sid_ctx_length)) { |
17dd65e6 | 1389 | return 0; |
69f68237 | 1390 | } |
17dd65e6 MC |
1391 | |
1392 | return 1; | |
0f113f3e | 1393 | } |
d02b48c6 | 1394 | |
58964a49 | 1395 | /* Fix this so it checks all the valid key/cert options */ |
0821bcd4 | 1396 | int SSL_CTX_check_private_key(const SSL_CTX *ctx) |
0f113f3e | 1397 | { |
a230b26e EK |
1398 | if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) { |
1399 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
0f113f3e MC |
1400 | return (0); |
1401 | } | |
1402 | if (ctx->cert->key->privatekey == NULL) { | |
a230b26e | 1403 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); |
0f113f3e MC |
1404 | return (0); |
1405 | } | |
1406 | return (X509_check_private_key | |
1407 | (ctx->cert->key->x509, ctx->cert->key->privatekey)); | |
1408 | } | |
d02b48c6 | 1409 | |
58964a49 | 1410 | /* Fix this function so that it takes an optional type parameter */ |
0821bcd4 | 1411 | int SSL_check_private_key(const SSL *ssl) |
0f113f3e MC |
1412 | { |
1413 | if (ssl == NULL) { | |
1414 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER); | |
1415 | return (0); | |
1416 | } | |
0f113f3e MC |
1417 | if (ssl->cert->key->x509 == NULL) { |
1418 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
1419 | return (0); | |
1420 | } | |
1421 | if (ssl->cert->key->privatekey == NULL) { | |
1422 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); | |
1423 | return (0); | |
1424 | } | |
1425 | return (X509_check_private_key(ssl->cert->key->x509, | |
1426 | ssl->cert->key->privatekey)); | |
1427 | } | |
d02b48c6 | 1428 | |
07bbc92c MC |
1429 | int SSL_waiting_for_async(SSL *s) |
1430 | { | |
e8aa8b6c | 1431 | if (s->job) |
82676094 MC |
1432 | return 1; |
1433 | ||
07bbc92c MC |
1434 | return 0; |
1435 | } | |
1436 | ||
ff75a257 | 1437 | int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds) |
f4da39d2 | 1438 | { |
ff75a257 MC |
1439 | ASYNC_WAIT_CTX *ctx = s->waitctx; |
1440 | ||
1441 | if (ctx == NULL) | |
1442 | return 0; | |
1443 | return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds); | |
1444 | } | |
f4da39d2 | 1445 | |
ff75a257 MC |
1446 | int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds, |
1447 | OSSL_ASYNC_FD *delfd, size_t *numdelfds) | |
1448 | { | |
1449 | ASYNC_WAIT_CTX *ctx = s->waitctx; | |
1450 | ||
1451 | if (ctx == NULL) | |
1452 | return 0; | |
1453 | return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd, | |
1454 | numdelfds); | |
f4da39d2 MC |
1455 | } |
1456 | ||
4f43d0e7 | 1457 | int SSL_accept(SSL *s) |
0f113f3e | 1458 | { |
c4c32155 | 1459 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1460 | /* Not properly initialized yet */ |
1461 | SSL_set_accept_state(s); | |
07bbc92c | 1462 | } |
add2f5ca MC |
1463 | |
1464 | return SSL_do_handshake(s); | |
0f113f3e | 1465 | } |
d02b48c6 | 1466 | |
4f43d0e7 | 1467 | int SSL_connect(SSL *s) |
0f113f3e | 1468 | { |
c4c32155 | 1469 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1470 | /* Not properly initialized yet */ |
1471 | SSL_set_connect_state(s); | |
add2f5ca | 1472 | } |
b31b04d9 | 1473 | |
add2f5ca | 1474 | return SSL_do_handshake(s); |
0f113f3e | 1475 | } |
d02b48c6 | 1476 | |
0821bcd4 | 1477 | long SSL_get_default_timeout(const SSL *s) |
0f113f3e MC |
1478 | { |
1479 | return (s->method->get_timeout()); | |
1480 | } | |
1481 | ||
7fecbf6f | 1482 | static int ssl_start_async_job(SSL *s, struct ssl_async_args *args, |
a230b26e EK |
1483 | int (*func) (void *)) |
1484 | { | |
add2f5ca | 1485 | int ret; |
ff75a257 MC |
1486 | if (s->waitctx == NULL) { |
1487 | s->waitctx = ASYNC_WAIT_CTX_new(); | |
1488 | if (s->waitctx == NULL) | |
1489 | return -1; | |
1490 | } | |
e8aa8b6c | 1491 | switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args, |
a230b26e | 1492 | sizeof(struct ssl_async_args))) { |
add2f5ca MC |
1493 | case ASYNC_ERR: |
1494 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1495 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC); |
add2f5ca MC |
1496 | return -1; |
1497 | case ASYNC_PAUSE: | |
1498 | s->rwstate = SSL_ASYNC_PAUSED; | |
1499 | return -1; | |
fc7f190c MC |
1500 | case ASYNC_NO_JOBS: |
1501 | s->rwstate = SSL_ASYNC_NO_JOBS; | |
1502 | return -1; | |
add2f5ca MC |
1503 | case ASYNC_FINISH: |
1504 | s->job = NULL; | |
1505 | return ret; | |
1506 | default: | |
1507 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1508 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR); |
add2f5ca MC |
1509 | /* Shouldn't happen */ |
1510 | return -1; | |
1511 | } | |
1512 | } | |
07bbc92c | 1513 | |
add2f5ca | 1514 | static int ssl_io_intern(void *vargs) |
07bbc92c MC |
1515 | { |
1516 | struct ssl_async_args *args; | |
1517 | SSL *s; | |
1518 | void *buf; | |
348240c6 | 1519 | size_t num; |
07bbc92c MC |
1520 | |
1521 | args = (struct ssl_async_args *)vargs; | |
1522 | s = args->s; | |
1523 | buf = args->buf; | |
1524 | num = args->num; | |
ec447924 MC |
1525 | switch (args->type) { |
1526 | case READFUNC: | |
7ee8627f | 1527 | return args->f.func_read(s, buf, num, &s->asyncrw); |
ec447924 | 1528 | case WRITEFUNC: |
7ee8627f | 1529 | return args->f.func_write(s, buf, num, &s->asyncrw); |
ec447924 MC |
1530 | case OTHERFUNC: |
1531 | return args->f.func_other(s); | |
1532 | } | |
1533 | return -1; | |
07bbc92c MC |
1534 | } |
1535 | ||
4ee7d3f9 | 1536 | int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes) |
0f113f3e | 1537 | { |
c4c32155 | 1538 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1539 | SSLerr(SSL_F_SSL_READ_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1540 | return -1; |
1541 | } | |
1542 | ||
1543 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
1544 | s->rwstate = SSL_NOTHING; | |
4ee7d3f9 | 1545 | return 0; |
0f113f3e | 1546 | } |
07bbc92c | 1547 | |
e8aa8b6c | 1548 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1549 | struct ssl_async_args args; |
eda75751 | 1550 | int ret; |
add2f5ca MC |
1551 | |
1552 | args.s = s; | |
1553 | args.buf = buf; | |
1554 | args.num = num; | |
ec447924 MC |
1555 | args.type = READFUNC; |
1556 | args.f.func_read = s->method->ssl_read; | |
add2f5ca | 1557 | |
eda75751 | 1558 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
54105ddd | 1559 | *readbytes = s->asyncrw; |
eda75751 | 1560 | return ret; |
07bbc92c | 1561 | } else { |
54105ddd | 1562 | return s->method->ssl_read(s, buf, num, readbytes); |
07bbc92c | 1563 | } |
0f113f3e MC |
1564 | } |
1565 | ||
4ee7d3f9 | 1566 | int SSL_read(SSL *s, void *buf, int num) |
eda75751 MC |
1567 | { |
1568 | int ret; | |
54105ddd | 1569 | size_t readbytes; |
eda75751 MC |
1570 | |
1571 | if (num < 0) { | |
4ee7d3f9 | 1572 | SSLerr(SSL_F_SSL_READ, SSL_R_BAD_LENGTH); |
eda75751 MC |
1573 | return -1; |
1574 | } | |
1575 | ||
4ee7d3f9 | 1576 | ret = ssl_read_internal(s, buf, (size_t)num, &readbytes); |
eda75751 MC |
1577 | |
1578 | /* | |
1579 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1580 | * <= INT_MAX | |
1581 | */ | |
1582 | if (ret > 0) | |
54105ddd | 1583 | ret = (int)readbytes; |
eda75751 MC |
1584 | |
1585 | return ret; | |
1586 | } | |
1587 | ||
4ee7d3f9 KR |
1588 | int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes) |
1589 | { | |
1590 | int ret = ssl_read_internal(s, buf, num, readbytes); | |
1591 | ||
1592 | if (ret < 0) | |
1593 | ret = 0; | |
1594 | return ret; | |
1595 | } | |
1596 | ||
d781d247 MC |
1597 | int SSL_read_early(SSL *s, void *buf, size_t num, size_t *readbytes) |
1598 | { | |
1599 | int ret; | |
1600 | ||
1601 | if (!s->server) { | |
1602 | SSLerr(SSL_F_SSL_READ_EARLY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
1603 | return SSL_READ_EARLY_ERROR; | |
1604 | } | |
1605 | ||
d781d247 MC |
1606 | switch (s->early_data_state) { |
1607 | case SSL_EARLY_DATA_NONE: | |
1608 | if (!SSL_in_before(s)) { | |
1609 | SSLerr(SSL_F_SSL_READ_EARLY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
1610 | return SSL_READ_EARLY_ERROR; | |
1611 | } | |
1612 | /* fall through */ | |
1613 | ||
1614 | case SSL_EARLY_DATA_ACCEPT_RETRY: | |
1615 | s->early_data_state = SSL_EARLY_DATA_ACCEPTING; | |
1616 | ret = SSL_accept(s); | |
1617 | if (ret <= 0) { | |
1618 | /* NBIO or error */ | |
1619 | s->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY; | |
1620 | return SSL_READ_EARLY_ERROR; | |
1621 | } | |
1622 | /* fall through */ | |
1623 | ||
1624 | case SSL_EARLY_DATA_READ_RETRY: | |
1625 | if (s->ext.early_data == SSL_EARLY_DATA_ACCEPTED) { | |
1626 | s->early_data_state = SSL_EARLY_DATA_READING; | |
1627 | ret = SSL_read_ex(s, buf, num, readbytes); | |
1628 | /* | |
1629 | * Record layer will call ssl_end_of_early_data_seen() if we see | |
1630 | * that alert - which updates the early_data_state to | |
1631 | * SSL_EARLY_DATA_FINISHED_READING | |
1632 | */ | |
1633 | if (ret > 0 || (ret <= 0 && s->early_data_state | |
1634 | != SSL_EARLY_DATA_FINISHED_READING)) { | |
1635 | s->early_data_state = SSL_EARLY_DATA_READ_RETRY; | |
1636 | return ret > 0 ? SSL_READ_EARLY_SUCCESS : SSL_READ_EARLY_ERROR; | |
1637 | } | |
1638 | } else { | |
1639 | s->early_data_state = SSL_EARLY_DATA_FINISHED_READING; | |
1640 | } | |
1641 | *readbytes = 0; | |
1642 | ossl_statem_set_in_init(s, 1); | |
1643 | return SSL_READ_EARLY_FINISH; | |
1644 | ||
1645 | default: | |
1646 | SSLerr(SSL_F_SSL_READ_EARLY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
1647 | return SSL_READ_EARLY_ERROR; | |
1648 | } | |
1649 | } | |
1650 | ||
1651 | int ssl_end_of_early_data_seen(SSL *s) | |
1652 | { | |
1653 | if (s->early_data_state == SSL_EARLY_DATA_READING) { | |
1654 | s->early_data_state = SSL_EARLY_DATA_FINISHED_READING; | |
fe5e20fd | 1655 | ossl_statem_finish_early_data(s); |
d781d247 MC |
1656 | return 1; |
1657 | } | |
1658 | ||
1659 | return 0; | |
1660 | } | |
1661 | ||
1ea4d09a MC |
1662 | int SSL_get_early_data_status(SSL *s) |
1663 | { | |
1664 | return s->ext.early_data; | |
1665 | } | |
1666 | ||
4ee7d3f9 | 1667 | static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes) |
0f113f3e | 1668 | { |
c4c32155 | 1669 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1670 | SSLerr(SSL_F_SSL_PEEK_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1671 | return -1; |
1672 | } | |
1673 | ||
1674 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
4ee7d3f9 | 1675 | return 0; |
0f113f3e | 1676 | } |
e8aa8b6c | 1677 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1678 | struct ssl_async_args args; |
eda75751 | 1679 | int ret; |
0f113f3e | 1680 | |
add2f5ca MC |
1681 | args.s = s; |
1682 | args.buf = buf; | |
1683 | args.num = num; | |
ec447924 MC |
1684 | args.type = READFUNC; |
1685 | args.f.func_read = s->method->ssl_peek; | |
07bbc92c | 1686 | |
eda75751 | 1687 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
54105ddd | 1688 | *readbytes = s->asyncrw; |
eda75751 | 1689 | return ret; |
add2f5ca | 1690 | } else { |
54105ddd | 1691 | return s->method->ssl_peek(s, buf, num, readbytes); |
add2f5ca | 1692 | } |
07bbc92c MC |
1693 | } |
1694 | ||
4ee7d3f9 | 1695 | int SSL_peek(SSL *s, void *buf, int num) |
7ee8627f MC |
1696 | { |
1697 | int ret; | |
4ee7d3f9 | 1698 | size_t readbytes; |
7ee8627f MC |
1699 | |
1700 | if (num < 0) { | |
4ee7d3f9 | 1701 | SSLerr(SSL_F_SSL_PEEK, SSL_R_BAD_LENGTH); |
7ee8627f MC |
1702 | return -1; |
1703 | } | |
1704 | ||
4ee7d3f9 | 1705 | ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes); |
7ee8627f MC |
1706 | |
1707 | /* | |
1708 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1709 | * <= INT_MAX | |
1710 | */ | |
1711 | if (ret > 0) | |
4ee7d3f9 | 1712 | ret = (int)readbytes; |
7ee8627f MC |
1713 | |
1714 | return ret; | |
1715 | } | |
1716 | ||
4ee7d3f9 KR |
1717 | |
1718 | int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes) | |
1719 | { | |
1720 | int ret = ssl_peek_internal(s, buf, num, readbytes); | |
1721 | ||
1722 | if (ret < 0) | |
1723 | ret = 0; | |
1724 | return ret; | |
1725 | } | |
1726 | ||
1727 | int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written) | |
0f113f3e | 1728 | { |
c4c32155 | 1729 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1730 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1731 | return -1; |
1732 | } | |
1733 | ||
1734 | if (s->shutdown & SSL_SENT_SHUTDOWN) { | |
1735 | s->rwstate = SSL_NOTHING; | |
4ee7d3f9 KR |
1736 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_PROTOCOL_IS_SHUTDOWN); |
1737 | return -1; | |
0f113f3e | 1738 | } |
07bbc92c | 1739 | |
49e7fe12 MC |
1740 | if (s->early_data_state == SSL_EARLY_DATA_WRITE_RETRY |
1741 | || s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY) | |
1742 | return 0; | |
1743 | ||
e8aa8b6c | 1744 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
7ee8627f | 1745 | int ret; |
add2f5ca MC |
1746 | struct ssl_async_args args; |
1747 | ||
1748 | args.s = s; | |
1749 | args.buf = (void *)buf; | |
1750 | args.num = num; | |
ec447924 MC |
1751 | args.type = WRITEFUNC; |
1752 | args.f.func_write = s->method->ssl_write; | |
add2f5ca | 1753 | |
7ee8627f MC |
1754 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
1755 | *written = s->asyncrw; | |
1756 | return ret; | |
07bbc92c | 1757 | } else { |
7ee8627f | 1758 | return s->method->ssl_write(s, buf, num, written); |
07bbc92c | 1759 | } |
0f113f3e | 1760 | } |
d02b48c6 | 1761 | |
4ee7d3f9 KR |
1762 | int SSL_write(SSL *s, const void *buf, int num) |
1763 | { | |
1764 | int ret; | |
1765 | size_t written; | |
1766 | ||
1767 | if (num < 0) { | |
1768 | SSLerr(SSL_F_SSL_WRITE, SSL_R_BAD_LENGTH); | |
1769 | return -1; | |
1770 | } | |
1771 | ||
1772 | ret = ssl_write_internal(s, buf, (size_t)num, &written); | |
1773 | ||
1774 | /* | |
1775 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1776 | * <= INT_MAX | |
1777 | */ | |
1778 | if (ret > 0) | |
1779 | ret = (int)written; | |
1780 | ||
1781 | return ret; | |
1782 | } | |
1783 | ||
1784 | int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written) | |
1785 | { | |
1786 | int ret = ssl_write_internal(s, buf, num, written); | |
1787 | ||
1788 | if (ret < 0) | |
1789 | ret = 0; | |
1790 | return ret; | |
1791 | } | |
1792 | ||
49e7fe12 MC |
1793 | int SSL_write_early(SSL *s, const void *buf, size_t num, size_t *written) |
1794 | { | |
1795 | int ret; | |
1796 | ||
1797 | if (s->server) { | |
1798 | SSLerr(SSL_F_SSL_WRITE_EARLY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
1799 | return 0; | |
1800 | } | |
1801 | ||
49e7fe12 MC |
1802 | switch (s->early_data_state) { |
1803 | case SSL_EARLY_DATA_NONE: | |
1804 | if (!SSL_in_before(s)) { | |
1805 | SSLerr(SSL_F_SSL_WRITE_EARLY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
1806 | return 0; | |
1807 | } | |
1808 | /* fall through */ | |
1809 | ||
1810 | case SSL_EARLY_DATA_CONNECT_RETRY: | |
1811 | s->early_data_state = SSL_EARLY_DATA_CONNECTING; | |
1812 | ret = SSL_connect(s); | |
1813 | if (ret <= 0) { | |
1814 | /* NBIO or error */ | |
1815 | s->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY; | |
1816 | return 0; | |
1817 | } | |
1818 | /* fall through */ | |
1819 | ||
1820 | case SSL_EARLY_DATA_WRITE_RETRY: | |
1821 | s->early_data_state = SSL_EARLY_DATA_WRITING; | |
1822 | ret = SSL_write_ex(s, buf, num, written); | |
1823 | s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY; | |
1824 | return ret; | |
1825 | ||
1826 | default: | |
1827 | SSLerr(SSL_F_SSL_WRITE_EARLY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
1828 | return 0; | |
1829 | } | |
1830 | } | |
1831 | ||
1832 | int SSL_write_early_finish(SSL *s) | |
1833 | { | |
1834 | int ret; | |
1835 | ||
1836 | if (s->early_data_state != SSL_EARLY_DATA_WRITE_RETRY) { | |
1837 | SSLerr(SSL_F_SSL_WRITE_EARLY_FINISH, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
1838 | return 0; | |
1839 | } | |
1840 | ||
1841 | s->early_data_state = SSL_EARLY_DATA_WRITING; | |
1842 | ret = ssl3_send_alert(s, SSL3_AL_WARNING, SSL_AD_END_OF_EARLY_DATA); | |
1843 | if (ret <= 0) { | |
1844 | s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY; | |
1845 | return 0; | |
1846 | } | |
1847 | s->early_data_state = SSL_EARLY_DATA_FINISHED_WRITING; | |
1848 | /* | |
1849 | * We set the enc_write_ctx back to NULL because we may end up writing | |
1850 | * in cleartext again if we get a HelloRetryRequest from the server. | |
1851 | */ | |
1852 | EVP_CIPHER_CTX_free(s->enc_write_ctx); | |
1853 | s->enc_write_ctx = NULL; | |
1854 | ossl_statem_set_in_init(s, 1); | |
1855 | return 1; | |
1856 | } | |
1857 | ||
4f43d0e7 | 1858 | int SSL_shutdown(SSL *s) |
0f113f3e MC |
1859 | { |
1860 | /* | |
1861 | * Note that this function behaves differently from what one might | |
1862 | * expect. Return values are 0 for no success (yet), 1 for success; but | |
1863 | * calling it once is usually not enough, even if blocking I/O is used | |
1864 | * (see ssl3_shutdown). | |
1865 | */ | |
1866 | ||
c4c32155 | 1867 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1868 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); |
1869 | return -1; | |
1870 | } | |
1871 | ||
64f9f406 | 1872 | if (!SSL_in_init(s)) { |
e8aa8b6c | 1873 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
64f9f406 | 1874 | struct ssl_async_args args; |
ec447924 | 1875 | |
64f9f406 MC |
1876 | args.s = s; |
1877 | args.type = OTHERFUNC; | |
1878 | args.f.func_other = s->method->ssl_shutdown; | |
ec447924 | 1879 | |
64f9f406 MC |
1880 | return ssl_start_async_job(s, &args, ssl_io_intern); |
1881 | } else { | |
1882 | return s->method->ssl_shutdown(s); | |
1883 | } | |
ec447924 | 1884 | } else { |
64f9f406 MC |
1885 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT); |
1886 | return -1; | |
ec447924 | 1887 | } |
0f113f3e | 1888 | } |
d02b48c6 | 1889 | |
4fbfe86a | 1890 | int SSL_key_update(SSL *s, int updatetype) |
44c04a2e | 1891 | { |
f14afcaa | 1892 | /* |
a9998e2f | 1893 | * TODO(TLS1.3): How will applications know whether TLSv1.3 has been |
f14afcaa MC |
1894 | * negotiated, and that it is appropriate to call SSL_key_update() instead |
1895 | * of SSL_renegotiate(). | |
1896 | */ | |
44c04a2e MC |
1897 | if (!SSL_IS_TLS13(s)) { |
1898 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_WRONG_SSL_VERSION); | |
1899 | return 0; | |
1900 | } | |
1901 | ||
1902 | if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED | |
1903 | && updatetype != SSL_KEY_UPDATE_REQUESTED) { | |
1904 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_INVALID_KEY_UPDATE_TYPE); | |
1905 | return 0; | |
1906 | } | |
1907 | ||
1908 | if (!SSL_is_init_finished(s)) { | |
1909 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_STILL_IN_INIT); | |
1910 | return 0; | |
1911 | } | |
1912 | ||
1913 | ossl_statem_set_in_init(s, 1); | |
44c04a2e | 1914 | s->key_update = updatetype; |
44c04a2e MC |
1915 | return 1; |
1916 | } | |
1917 | ||
4fbfe86a | 1918 | int SSL_get_key_update_type(SSL *s) |
53d1d07d MC |
1919 | { |
1920 | return s->key_update; | |
1921 | } | |
1922 | ||
4f43d0e7 | 1923 | int SSL_renegotiate(SSL *s) |
0f113f3e | 1924 | { |
44c04a2e MC |
1925 | if (SSL_IS_TLS13(s)) { |
1926 | SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_WRONG_SSL_VERSION); | |
2c0980d2 | 1927 | return 0; |
44c04a2e | 1928 | } |
cda6b998 | 1929 | |
0f113f3e MC |
1930 | if (s->renegotiate == 0) |
1931 | s->renegotiate = 1; | |
44959ee4 | 1932 | |
0f113f3e | 1933 | s->new_session = 1; |
44959ee4 | 1934 | |
0f113f3e MC |
1935 | return (s->method->ssl_renegotiate(s)); |
1936 | } | |
d02b48c6 | 1937 | |
44959ee4 | 1938 | int SSL_renegotiate_abbreviated(SSL *s) |
0f113f3e | 1939 | { |
cda6b998 | 1940 | if (SSL_IS_TLS13(s)) |
2c0980d2 | 1941 | return 0; |
cda6b998 | 1942 | |
0f113f3e MC |
1943 | if (s->renegotiate == 0) |
1944 | s->renegotiate = 1; | |
c519e89f | 1945 | |
0f113f3e | 1946 | s->new_session = 0; |
c519e89f | 1947 | |
0f113f3e MC |
1948 | return (s->method->ssl_renegotiate(s)); |
1949 | } | |
44959ee4 | 1950 | |
6b0e9fac | 1951 | int SSL_renegotiate_pending(SSL *s) |
0f113f3e MC |
1952 | { |
1953 | /* | |
1954 | * becomes true when negotiation is requested; false again once a | |
1955 | * handshake has finished | |
1956 | */ | |
1957 | return (s->renegotiate != 0); | |
1958 | } | |
1959 | ||
1960 | long SSL_ctrl(SSL *s, int cmd, long larg, void *parg) | |
1961 | { | |
1962 | long l; | |
1963 | ||
1964 | switch (cmd) { | |
1965 | case SSL_CTRL_GET_READ_AHEAD: | |
52e1d7b1 | 1966 | return (RECORD_LAYER_get_read_ahead(&s->rlayer)); |
0f113f3e | 1967 | case SSL_CTRL_SET_READ_AHEAD: |
52e1d7b1 MC |
1968 | l = RECORD_LAYER_get_read_ahead(&s->rlayer); |
1969 | RECORD_LAYER_set_read_ahead(&s->rlayer, larg); | |
0f113f3e MC |
1970 | return (l); |
1971 | ||
1972 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
1973 | s->msg_callback_arg = parg; | |
1974 | return 1; | |
1975 | ||
0f113f3e MC |
1976 | case SSL_CTRL_MODE: |
1977 | return (s->mode |= larg); | |
1978 | case SSL_CTRL_CLEAR_MODE: | |
1979 | return (s->mode &= ~larg); | |
1980 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
348240c6 | 1981 | return (long)(s->max_cert_list); |
0f113f3e | 1982 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
1983 | if (larg < 0) |
1984 | return 0; | |
1985 | l = (long)s->max_cert_list; | |
1986 | s->max_cert_list = (size_t)larg; | |
1987 | return l; | |
0f113f3e MC |
1988 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: |
1989 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
1990 | return 0; | |
1991 | s->max_send_fragment = larg; | |
d102d9df MC |
1992 | if (s->max_send_fragment < s->split_send_fragment) |
1993 | s->split_send_fragment = s->max_send_fragment; | |
1994 | return 1; | |
1995 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: | |
7ee8627f | 1996 | if ((size_t)larg > s->max_send_fragment || larg == 0) |
d102d9df MC |
1997 | return 0; |
1998 | s->split_send_fragment = larg; | |
0f113f3e | 1999 | return 1; |
d102d9df MC |
2000 | case SSL_CTRL_SET_MAX_PIPELINES: |
2001 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
2002 | return 0; | |
2003 | s->max_pipelines = larg; | |
94777c9c MC |
2004 | if (larg > 1) |
2005 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
07077415 | 2006 | return 1; |
0f113f3e MC |
2007 | case SSL_CTRL_GET_RI_SUPPORT: |
2008 | if (s->s3) | |
2009 | return s->s3->send_connection_binding; | |
2010 | else | |
2011 | return 0; | |
2012 | case SSL_CTRL_CERT_FLAGS: | |
2013 | return (s->cert->cert_flags |= larg); | |
2014 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
2015 | return (s->cert->cert_flags &= ~larg); | |
2016 | ||
2017 | case SSL_CTRL_GET_RAW_CIPHERLIST: | |
2018 | if (parg) { | |
76106e60 | 2019 | if (s->s3->tmp.ciphers_raw == NULL) |
0f113f3e | 2020 | return 0; |
76106e60 DSH |
2021 | *(unsigned char **)parg = s->s3->tmp.ciphers_raw; |
2022 | return (int)s->s3->tmp.ciphers_rawlen; | |
e9fa092e EK |
2023 | } else { |
2024 | return TLS_CIPHER_LEN; | |
2025 | } | |
c5364614 | 2026 | case SSL_CTRL_GET_EXTMS_SUPPORT: |
024f543c | 2027 | if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s)) |
a230b26e | 2028 | return -1; |
dccd20d1 | 2029 | if (s->session->flags & SSL_SESS_FLAG_EXTMS) |
c5364614 DSH |
2030 | return 1; |
2031 | else | |
2032 | return 0; | |
7946ab33 | 2033 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
4fa52141 VD |
2034 | return ssl_set_version_bound(s->ctx->method->version, (int)larg, |
2035 | &s->min_proto_version); | |
7946ab33 | 2036 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
4fa52141 VD |
2037 | return ssl_set_version_bound(s->ctx->method->version, (int)larg, |
2038 | &s->max_proto_version); | |
0f113f3e MC |
2039 | default: |
2040 | return (s->method->ssl_ctrl(s, cmd, larg, parg)); | |
2041 | } | |
2042 | } | |
2043 | ||
2044 | long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
2045 | { | |
2046 | switch (cmd) { | |
2047 | case SSL_CTRL_SET_MSG_CALLBACK: | |
2048 | s->msg_callback = (void (*) | |
2049 | (int write_p, int version, int content_type, | |
2050 | const void *buf, size_t len, SSL *ssl, | |
2051 | void *arg))(fp); | |
2052 | return 1; | |
2053 | ||
2054 | default: | |
2055 | return (s->method->ssl_callback_ctrl(s, cmd, fp)); | |
2056 | } | |
2057 | } | |
d3442bc7 | 2058 | |
3c1d6bbc | 2059 | LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx) |
0f113f3e MC |
2060 | { |
2061 | return ctx->sessions; | |
2062 | } | |
2063 | ||
2064 | long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
2065 | { | |
2066 | long l; | |
2067 | /* For some cases with ctx == NULL perform syntax checks */ | |
2068 | if (ctx == NULL) { | |
2069 | switch (cmd) { | |
14536c8c | 2070 | #ifndef OPENSSL_NO_EC |
de4d764e MC |
2071 | case SSL_CTRL_SET_GROUPS_LIST: |
2072 | return tls1_set_groups_list(NULL, NULL, parg); | |
0f113f3e MC |
2073 | #endif |
2074 | case SSL_CTRL_SET_SIGALGS_LIST: | |
2075 | case SSL_CTRL_SET_CLIENT_SIGALGS_LIST: | |
2076 | return tls1_set_sigalgs_list(NULL, parg, 0); | |
2077 | default: | |
2078 | return 0; | |
2079 | } | |
2080 | } | |
2081 | ||
2082 | switch (cmd) { | |
2083 | case SSL_CTRL_GET_READ_AHEAD: | |
2084 | return (ctx->read_ahead); | |
2085 | case SSL_CTRL_SET_READ_AHEAD: | |
2086 | l = ctx->read_ahead; | |
2087 | ctx->read_ahead = larg; | |
2088 | return (l); | |
2089 | ||
2090 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
2091 | ctx->msg_callback_arg = parg; | |
2092 | return 1; | |
2093 | ||
2094 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
348240c6 | 2095 | return (long)(ctx->max_cert_list); |
0f113f3e | 2096 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
2097 | if (larg < 0) |
2098 | return 0; | |
2099 | l = (long)ctx->max_cert_list; | |
2100 | ctx->max_cert_list = (size_t)larg; | |
2101 | return l; | |
0f113f3e MC |
2102 | |
2103 | case SSL_CTRL_SET_SESS_CACHE_SIZE: | |
348240c6 MC |
2104 | if (larg < 0) |
2105 | return 0; | |
2106 | l = (long)ctx->session_cache_size; | |
2107 | ctx->session_cache_size = (size_t)larg; | |
2108 | return l; | |
0f113f3e | 2109 | case SSL_CTRL_GET_SESS_CACHE_SIZE: |
348240c6 | 2110 | return (long)(ctx->session_cache_size); |
0f113f3e MC |
2111 | case SSL_CTRL_SET_SESS_CACHE_MODE: |
2112 | l = ctx->session_cache_mode; | |
2113 | ctx->session_cache_mode = larg; | |
2114 | return (l); | |
2115 | case SSL_CTRL_GET_SESS_CACHE_MODE: | |
2116 | return (ctx->session_cache_mode); | |
2117 | ||
2118 | case SSL_CTRL_SESS_NUMBER: | |
2119 | return (lh_SSL_SESSION_num_items(ctx->sessions)); | |
2120 | case SSL_CTRL_SESS_CONNECT: | |
2121 | return (ctx->stats.sess_connect); | |
2122 | case SSL_CTRL_SESS_CONNECT_GOOD: | |
2123 | return (ctx->stats.sess_connect_good); | |
2124 | case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: | |
2125 | return (ctx->stats.sess_connect_renegotiate); | |
2126 | case SSL_CTRL_SESS_ACCEPT: | |
2127 | return (ctx->stats.sess_accept); | |
2128 | case SSL_CTRL_SESS_ACCEPT_GOOD: | |
2129 | return (ctx->stats.sess_accept_good); | |
2130 | case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: | |
2131 | return (ctx->stats.sess_accept_renegotiate); | |
2132 | case SSL_CTRL_SESS_HIT: | |
2133 | return (ctx->stats.sess_hit); | |
2134 | case SSL_CTRL_SESS_CB_HIT: | |
2135 | return (ctx->stats.sess_cb_hit); | |
2136 | case SSL_CTRL_SESS_MISSES: | |
2137 | return (ctx->stats.sess_miss); | |
2138 | case SSL_CTRL_SESS_TIMEOUTS: | |
2139 | return (ctx->stats.sess_timeout); | |
2140 | case SSL_CTRL_SESS_CACHE_FULL: | |
2141 | return (ctx->stats.sess_cache_full); | |
0f113f3e MC |
2142 | case SSL_CTRL_MODE: |
2143 | return (ctx->mode |= larg); | |
2144 | case SSL_CTRL_CLEAR_MODE: | |
2145 | return (ctx->mode &= ~larg); | |
2146 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
2147 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
2148 | return 0; | |
2149 | ctx->max_send_fragment = larg; | |
d102d9df | 2150 | if (ctx->max_send_fragment < ctx->split_send_fragment) |
bfb155c1 | 2151 | ctx->split_send_fragment = ctx->max_send_fragment; |
0f113f3e | 2152 | return 1; |
d102d9df | 2153 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: |
7ee8627f | 2154 | if ((size_t)larg > ctx->max_send_fragment || larg == 0) |
d102d9df MC |
2155 | return 0; |
2156 | ctx->split_send_fragment = larg; | |
2157 | return 1; | |
2158 | case SSL_CTRL_SET_MAX_PIPELINES: | |
2159 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
2160 | return 0; | |
2161 | ctx->max_pipelines = larg; | |
07077415 | 2162 | return 1; |
0f113f3e MC |
2163 | case SSL_CTRL_CERT_FLAGS: |
2164 | return (ctx->cert->cert_flags |= larg); | |
2165 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
2166 | return (ctx->cert->cert_flags &= ~larg); | |
7946ab33 | 2167 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
4fa52141 VD |
2168 | return ssl_set_version_bound(ctx->method->version, (int)larg, |
2169 | &ctx->min_proto_version); | |
7946ab33 | 2170 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
4fa52141 VD |
2171 | return ssl_set_version_bound(ctx->method->version, (int)larg, |
2172 | &ctx->max_proto_version); | |
0f113f3e MC |
2173 | default: |
2174 | return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg)); | |
2175 | } | |
2176 | } | |
2177 | ||
2178 | long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
2179 | { | |
2180 | switch (cmd) { | |
2181 | case SSL_CTRL_SET_MSG_CALLBACK: | |
2182 | ctx->msg_callback = (void (*) | |
2183 | (int write_p, int version, int content_type, | |
2184 | const void *buf, size_t len, SSL *ssl, | |
2185 | void *arg))(fp); | |
2186 | return 1; | |
2187 | ||
2188 | default: | |
2189 | return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp)); | |
2190 | } | |
2191 | } | |
d3442bc7 | 2192 | |
ccd86b68 | 2193 | int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) |
0f113f3e | 2194 | { |
90d9e49a DSH |
2195 | if (a->id > b->id) |
2196 | return 1; | |
2197 | if (a->id < b->id) | |
2198 | return -1; | |
2199 | return 0; | |
0f113f3e MC |
2200 | } |
2201 | ||
2202 | int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, | |
2203 | const SSL_CIPHER *const *bp) | |
2204 | { | |
90d9e49a DSH |
2205 | if ((*ap)->id > (*bp)->id) |
2206 | return 1; | |
2207 | if ((*ap)->id < (*bp)->id) | |
2208 | return -1; | |
2209 | return 0; | |
0f113f3e | 2210 | } |
d02b48c6 | 2211 | |
4f43d0e7 | 2212 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2213 | * preference */ |
0821bcd4 | 2214 | STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) |
0f113f3e MC |
2215 | { |
2216 | if (s != NULL) { | |
2217 | if (s->cipher_list != NULL) { | |
2218 | return (s->cipher_list); | |
2219 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { | |
2220 | return (s->ctx->cipher_list); | |
2221 | } | |
2222 | } | |
2223 | return (NULL); | |
2224 | } | |
2225 | ||
831eef2c NM |
2226 | STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s) |
2227 | { | |
2228 | if ((s == NULL) || (s->session == NULL) || !s->server) | |
2229 | return NULL; | |
2230 | return s->session->ciphers; | |
2231 | } | |
2232 | ||
8b8e5bed | 2233 | STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s) |
0f113f3e MC |
2234 | { |
2235 | STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers; | |
2236 | int i; | |
2237 | ciphers = SSL_get_ciphers(s); | |
2238 | if (!ciphers) | |
2239 | return NULL; | |
2240 | ssl_set_client_disabled(s); | |
2241 | for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { | |
2242 | const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i); | |
2243 | if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) { | |
2244 | if (!sk) | |
2245 | sk = sk_SSL_CIPHER_new_null(); | |
2246 | if (!sk) | |
2247 | return NULL; | |
2248 | if (!sk_SSL_CIPHER_push(sk, c)) { | |
2249 | sk_SSL_CIPHER_free(sk); | |
2250 | return NULL; | |
2251 | } | |
2252 | } | |
2253 | } | |
2254 | return sk; | |
2255 | } | |
8b8e5bed | 2256 | |
4f43d0e7 | 2257 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2258 | * algorithm id */ |
f73e07cf | 2259 | STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) |
0f113f3e MC |
2260 | { |
2261 | if (s != NULL) { | |
2262 | if (s->cipher_list_by_id != NULL) { | |
2263 | return (s->cipher_list_by_id); | |
2264 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) { | |
2265 | return (s->ctx->cipher_list_by_id); | |
2266 | } | |
2267 | } | |
2268 | return (NULL); | |
2269 | } | |
d02b48c6 | 2270 | |
4f43d0e7 | 2271 | /** The old interface to get the same thing as SSL_get_ciphers() */ |
0f113f3e MC |
2272 | const char *SSL_get_cipher_list(const SSL *s, int n) |
2273 | { | |
4a640fb6 | 2274 | const SSL_CIPHER *c; |
0f113f3e MC |
2275 | STACK_OF(SSL_CIPHER) *sk; |
2276 | ||
2277 | if (s == NULL) | |
2278 | return (NULL); | |
2279 | sk = SSL_get_ciphers(s); | |
2280 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) | |
2281 | return (NULL); | |
2282 | c = sk_SSL_CIPHER_value(sk, n); | |
2283 | if (c == NULL) | |
2284 | return (NULL); | |
2285 | return (c->name); | |
2286 | } | |
d02b48c6 | 2287 | |
9d5ac953 KY |
2288 | /** return a STACK of the ciphers available for the SSL_CTX and in order of |
2289 | * preference */ | |
2290 | STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx) | |
2291 | { | |
2292 | if (ctx != NULL) | |
2293 | return ctx->cipher_list; | |
2294 | return NULL; | |
2295 | } | |
2296 | ||
25f923dd | 2297 | /** specify the ciphers to be used by default by the SSL_CTX */ |
018e57c7 | 2298 | int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) |
0f113f3e MC |
2299 | { |
2300 | STACK_OF(SSL_CIPHER) *sk; | |
2301 | ||
2302 | sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, | |
2303 | &ctx->cipher_list_by_id, str, ctx->cert); | |
2304 | /* | |
2305 | * ssl_create_cipher_list may return an empty stack if it was unable to | |
2306 | * find a cipher matching the given rule string (for example if the rule | |
2307 | * string specifies a cipher which has been disabled). This is not an | |
2308 | * error as far as ssl_create_cipher_list is concerned, and hence | |
2309 | * ctx->cipher_list and ctx->cipher_list_by_id has been updated. | |
2310 | */ | |
2311 | if (sk == NULL) | |
2312 | return 0; | |
2313 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2314 | SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2315 | return 0; | |
2316 | } | |
2317 | return 1; | |
2318 | } | |
d02b48c6 | 2319 | |
4f43d0e7 | 2320 | /** specify the ciphers to be used by the SSL */ |
0f113f3e MC |
2321 | int SSL_set_cipher_list(SSL *s, const char *str) |
2322 | { | |
2323 | STACK_OF(SSL_CIPHER) *sk; | |
2324 | ||
2325 | sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, | |
2326 | &s->cipher_list_by_id, str, s->cert); | |
2327 | /* see comment in SSL_CTX_set_cipher_list */ | |
2328 | if (sk == NULL) | |
2329 | return 0; | |
2330 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2331 | SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2332 | return 0; | |
2333 | } | |
2334 | return 1; | |
2335 | } | |
d02b48c6 | 2336 | |
0f113f3e MC |
2337 | char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len) |
2338 | { | |
2339 | char *p; | |
2340 | STACK_OF(SSL_CIPHER) *sk; | |
4a640fb6 | 2341 | const SSL_CIPHER *c; |
0f113f3e MC |
2342 | int i; |
2343 | ||
2344 | if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2)) | |
2345 | return (NULL); | |
2346 | ||
2347 | p = buf; | |
2348 | sk = s->session->ciphers; | |
2349 | ||
2350 | if (sk_SSL_CIPHER_num(sk) == 0) | |
2351 | return NULL; | |
2352 | ||
2353 | for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { | |
2354 | int n; | |
2355 | ||
2356 | c = sk_SSL_CIPHER_value(sk, i); | |
2357 | n = strlen(c->name); | |
2358 | if (n + 1 > len) { | |
2359 | if (p != buf) | |
2360 | --p; | |
2361 | *p = '\0'; | |
2362 | return buf; | |
2363 | } | |
a89c9a0d | 2364 | memcpy(p, c->name, n + 1); |
0f113f3e MC |
2365 | p += n; |
2366 | *(p++) = ':'; | |
2367 | len -= n + 1; | |
2368 | } | |
2369 | p[-1] = '\0'; | |
2370 | return (buf); | |
2371 | } | |
2372 | ||
52b8dad8 | 2373 | /** return a servername extension value if provided in Client Hello, or NULL. |
f1fd4544 | 2374 | * So far, only host_name types are defined (RFC 3546). |
ed3883d2 BM |
2375 | */ |
2376 | ||
f1fd4544 | 2377 | const char *SSL_get_servername(const SSL *s, const int type) |
0f113f3e MC |
2378 | { |
2379 | if (type != TLSEXT_NAMETYPE_host_name) | |
2380 | return NULL; | |
a13c20f6 | 2381 | |
aff8c126 RS |
2382 | return s->session && !s->ext.hostname ? |
2383 | s->session->ext.hostname : s->ext.hostname; | |
0f113f3e | 2384 | } |
ed3883d2 | 2385 | |
f1fd4544 | 2386 | int SSL_get_servername_type(const SSL *s) |
0f113f3e MC |
2387 | { |
2388 | if (s->session | |
aff8c126 RS |
2389 | && (!s->ext.hostname ? s->session-> |
2390 | ext.hostname : s->ext.hostname)) | |
0f113f3e MC |
2391 | return TLSEXT_NAMETYPE_host_name; |
2392 | return -1; | |
2393 | } | |
ee2ffc27 | 2394 | |
0f113f3e MC |
2395 | /* |
2396 | * SSL_select_next_proto implements the standard protocol selection. It is | |
ee2ffc27 | 2397 | * expected that this function is called from the callback set by |
0f113f3e MC |
2398 | * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a |
2399 | * vector of 8-bit, length prefixed byte strings. The length byte itself is | |
2400 | * not included in the length. A byte string of length 0 is invalid. No byte | |
2401 | * string may be truncated. The current, but experimental algorithm for | |
2402 | * selecting the protocol is: 1) If the server doesn't support NPN then this | |
2403 | * is indicated to the callback. In this case, the client application has to | |
2404 | * abort the connection or have a default application level protocol. 2) If | |
2405 | * the server supports NPN, but advertises an empty list then the client | |
f430ba31 | 2406 | * selects the first protocol in its list, but indicates via the API that this |
0f113f3e MC |
2407 | * fallback case was enacted. 3) Otherwise, the client finds the first |
2408 | * protocol in the server's list that it supports and selects this protocol. | |
2409 | * This is because it's assumed that the server has better information about | |
2410 | * which protocol a client should use. 4) If the client doesn't support any | |
2411 | * of the server's advertised protocols, then this is treated the same as | |
2412 | * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was | |
2413 | * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. | |
ee2ffc27 | 2414 | */ |
0f113f3e MC |
2415 | int SSL_select_next_proto(unsigned char **out, unsigned char *outlen, |
2416 | const unsigned char *server, | |
2417 | unsigned int server_len, | |
a230b26e | 2418 | const unsigned char *client, unsigned int client_len) |
0f113f3e MC |
2419 | { |
2420 | unsigned int i, j; | |
2421 | const unsigned char *result; | |
2422 | int status = OPENSSL_NPN_UNSUPPORTED; | |
2423 | ||
2424 | /* | |
2425 | * For each protocol in server preference order, see if we support it. | |
2426 | */ | |
2427 | for (i = 0; i < server_len;) { | |
2428 | for (j = 0; j < client_len;) { | |
2429 | if (server[i] == client[j] && | |
2430 | memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) { | |
2431 | /* We found a match */ | |
2432 | result = &server[i]; | |
2433 | status = OPENSSL_NPN_NEGOTIATED; | |
2434 | goto found; | |
2435 | } | |
2436 | j += client[j]; | |
2437 | j++; | |
2438 | } | |
2439 | i += server[i]; | |
2440 | i++; | |
2441 | } | |
2442 | ||
2443 | /* There's no overlap between our protocols and the server's list. */ | |
2444 | result = client; | |
2445 | status = OPENSSL_NPN_NO_OVERLAP; | |
2446 | ||
2447 | found: | |
2448 | *out = (unsigned char *)result + 1; | |
2449 | *outlen = result[0]; | |
2450 | return status; | |
2451 | } | |
ee2ffc27 | 2452 | |
e481f9b9 | 2453 | #ifndef OPENSSL_NO_NEXTPROTONEG |
0f113f3e MC |
2454 | /* |
2455 | * SSL_get0_next_proto_negotiated sets *data and *len to point to the | |
2456 | * client's requested protocol for this connection and returns 0. If the | |
2457 | * client didn't request any protocol, then *data is set to NULL. Note that | |
2458 | * the client can request any protocol it chooses. The value returned from | |
2459 | * this function need not be a member of the list of supported protocols | |
ee2ffc27 BL |
2460 | * provided by the callback. |
2461 | */ | |
0f113f3e MC |
2462 | void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, |
2463 | unsigned *len) | |
2464 | { | |
aff8c126 | 2465 | *data = s->ext.npn; |
0f113f3e MC |
2466 | if (!*data) { |
2467 | *len = 0; | |
2468 | } else { | |
aff8c126 | 2469 | *len = (unsigned int)s->ext.npn_len; |
0f113f3e MC |
2470 | } |
2471 | } | |
2472 | ||
2473 | /* | |
aff8c126 | 2474 | * SSL_CTX_set_npn_advertised_cb sets a callback that is called when |
0f113f3e MC |
2475 | * a TLS server needs a list of supported protocols for Next Protocol |
2476 | * Negotiation. The returned list must be in wire format. The list is | |
2477 | * returned by setting |out| to point to it and |outlen| to its length. This | |
2478 | * memory will not be modified, but one should assume that the SSL* keeps a | |
2479 | * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it | |
2480 | * wishes to advertise. Otherwise, no such extension will be included in the | |
2481 | * ServerHello. | |
2482 | */ | |
aff8c126 | 2483 | void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx, |
8cbfcc70 | 2484 | SSL_CTX_npn_advertised_cb_func cb, |
aff8c126 | 2485 | void *arg) |
0f113f3e | 2486 | { |
aff8c126 RS |
2487 | ctx->ext.npn_advertised_cb = cb; |
2488 | ctx->ext.npn_advertised_cb_arg = arg; | |
0f113f3e MC |
2489 | } |
2490 | ||
2491 | /* | |
2492 | * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a | |
ee2ffc27 BL |
2493 | * client needs to select a protocol from the server's provided list. |out| |
2494 | * must be set to point to the selected protocol (which may be within |in|). | |
0f113f3e MC |
2495 | * The length of the protocol name must be written into |outlen|. The |
2496 | * server's advertised protocols are provided in |in| and |inlen|. The | |
2497 | * callback can assume that |in| is syntactically valid. The client must | |
2498 | * select a protocol. It is fatal to the connection if this callback returns | |
2499 | * a value other than SSL_TLSEXT_ERR_OK. | |
ee2ffc27 | 2500 | */ |
aff8c126 | 2501 | void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx, |
8cbfcc70 | 2502 | SSL_CTX_npn_select_cb_func cb, |
aff8c126 | 2503 | void *arg) |
0f113f3e | 2504 | { |
aff8c126 RS |
2505 | ctx->ext.npn_select_cb = cb; |
2506 | ctx->ext.npn_select_cb_arg = arg; | |
0f113f3e | 2507 | } |
e481f9b9 | 2508 | #endif |
a398f821 | 2509 | |
0f113f3e MC |
2510 | /* |
2511 | * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|. | |
6f017a8f | 2512 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2513 | * length-prefixed strings). Returns 0 on success. |
2514 | */ | |
2515 | int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, | |
817cd0d5 | 2516 | unsigned int protos_len) |
0f113f3e | 2517 | { |
aff8c126 RS |
2518 | OPENSSL_free(ctx->ext.alpn); |
2519 | ctx->ext.alpn = OPENSSL_memdup(protos, protos_len); | |
2520 | if (ctx->ext.alpn == NULL) { | |
72e9be3d | 2521 | SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); |
0f113f3e | 2522 | return 1; |
72e9be3d | 2523 | } |
aff8c126 | 2524 | ctx->ext.alpn_len = protos_len; |
0f113f3e MC |
2525 | |
2526 | return 0; | |
2527 | } | |
2528 | ||
2529 | /* | |
2530 | * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|. | |
6f017a8f | 2531 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2532 | * length-prefixed strings). Returns 0 on success. |
2533 | */ | |
2534 | int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, | |
817cd0d5 | 2535 | unsigned int protos_len) |
0f113f3e | 2536 | { |
aff8c126 RS |
2537 | OPENSSL_free(ssl->ext.alpn); |
2538 | ssl->ext.alpn = OPENSSL_memdup(protos, protos_len); | |
2539 | if (ssl->ext.alpn == NULL) { | |
72e9be3d | 2540 | SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); |
0f113f3e | 2541 | return 1; |
72e9be3d | 2542 | } |
aff8c126 | 2543 | ssl->ext.alpn_len = protos_len; |
0f113f3e MC |
2544 | |
2545 | return 0; | |
2546 | } | |
2547 | ||
2548 | /* | |
2549 | * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is | |
2550 | * called during ClientHello processing in order to select an ALPN protocol | |
2551 | * from the client's list of offered protocols. | |
2552 | */ | |
2553 | void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx, | |
8cbfcc70 RS |
2554 | SSL_CTX_alpn_select_cb_func cb, |
2555 | void *arg) | |
0f113f3e | 2556 | { |
aff8c126 RS |
2557 | ctx->ext.alpn_select_cb = cb; |
2558 | ctx->ext.alpn_select_cb_arg = arg; | |
0f113f3e MC |
2559 | } |
2560 | ||
2561 | /* | |
2562 | * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from | |
2563 | * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name | |
2564 | * (not including the leading length-prefix byte). If the server didn't | |
2565 | * respond with a negotiated protocol then |*len| will be zero. | |
2566 | */ | |
6f017a8f | 2567 | void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, |
817cd0d5 | 2568 | unsigned int *len) |
0f113f3e MC |
2569 | { |
2570 | *data = NULL; | |
2571 | if (ssl->s3) | |
2572 | *data = ssl->s3->alpn_selected; | |
2573 | if (*data == NULL) | |
2574 | *len = 0; | |
2575 | else | |
348240c6 | 2576 | *len = (unsigned int)ssl->s3->alpn_selected_len; |
0f113f3e MC |
2577 | } |
2578 | ||
74b4b494 | 2579 | int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, |
0f113f3e MC |
2580 | const char *label, size_t llen, |
2581 | const unsigned char *p, size_t plen, | |
2582 | int use_context) | |
2583 | { | |
c8a18468 | 2584 | if (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER) |
0f113f3e | 2585 | return -1; |
e0af0405 | 2586 | |
0f113f3e MC |
2587 | return s->method->ssl3_enc->export_keying_material(s, out, olen, label, |
2588 | llen, p, plen, | |
2589 | use_context); | |
2590 | } | |
e0af0405 | 2591 | |
3c1d6bbc | 2592 | static unsigned long ssl_session_hash(const SSL_SESSION *a) |
0f113f3e | 2593 | { |
bd5d27c1 | 2594 | const unsigned char *session_id = a->session_id; |
0f113f3e | 2595 | unsigned long l; |
bd5d27c1 DB |
2596 | unsigned char tmp_storage[4]; |
2597 | ||
2598 | if (a->session_id_length < sizeof(tmp_storage)) { | |
2599 | memset(tmp_storage, 0, sizeof(tmp_storage)); | |
2600 | memcpy(tmp_storage, a->session_id, a->session_id_length); | |
2601 | session_id = tmp_storage; | |
2602 | } | |
0f113f3e MC |
2603 | |
2604 | l = (unsigned long) | |
bd5d27c1 DB |
2605 | ((unsigned long)session_id[0]) | |
2606 | ((unsigned long)session_id[1] << 8L) | | |
2607 | ((unsigned long)session_id[2] << 16L) | | |
2608 | ((unsigned long)session_id[3] << 24L); | |
0f113f3e MC |
2609 | return (l); |
2610 | } | |
2611 | ||
2612 | /* | |
2613 | * NB: If this function (or indeed the hash function which uses a sort of | |
dc644fe2 | 2614 | * coarser function than this one) is changed, ensure |
0f113f3e MC |
2615 | * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on |
2616 | * being able to construct an SSL_SESSION that will collide with any existing | |
2617 | * session with a matching session ID. | |
2618 | */ | |
2619 | static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) | |
2620 | { | |
2621 | if (a->ssl_version != b->ssl_version) | |
2622 | return (1); | |
2623 | if (a->session_id_length != b->session_id_length) | |
2624 | return (1); | |
2625 | return (memcmp(a->session_id, b->session_id, a->session_id_length)); | |
2626 | } | |
2627 | ||
2628 | /* | |
2629 | * These wrapper functions should remain rather than redeclaring | |
d0fa136c | 2630 | * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each |
0f113f3e MC |
2631 | * variable. The reason is that the functions aren't static, they're exposed |
2632 | * via ssl.h. | |
2633 | */ | |
97b17195 | 2634 | |
4ebb342f | 2635 | SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth) |
0f113f3e MC |
2636 | { |
2637 | SSL_CTX *ret = NULL; | |
2638 | ||
2639 | if (meth == NULL) { | |
2640 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED); | |
2641 | return (NULL); | |
2642 | } | |
2643 | ||
0fc32b07 MC |
2644 | if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL)) |
2645 | return NULL; | |
7fa792d1 | 2646 | |
0f113f3e MC |
2647 | if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { |
2648 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); | |
2649 | goto err; | |
2650 | } | |
b51bce94 | 2651 | ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e MC |
2652 | if (ret == NULL) |
2653 | goto err; | |
2654 | ||
0f113f3e | 2655 | ret->method = meth; |
7946ab33 KR |
2656 | ret->min_proto_version = 0; |
2657 | ret->max_proto_version = 0; | |
0f113f3e MC |
2658 | ret->session_cache_mode = SSL_SESS_CACHE_SERVER; |
2659 | ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; | |
64b25758 | 2660 | /* We take the system default. */ |
0f113f3e | 2661 | ret->session_timeout = meth->get_timeout(); |
0f113f3e | 2662 | ret->references = 1; |
16203f7b AG |
2663 | ret->lock = CRYPTO_THREAD_lock_new(); |
2664 | if (ret->lock == NULL) { | |
2665 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2666 | OPENSSL_free(ret); | |
2667 | return NULL; | |
2668 | } | |
0f113f3e | 2669 | ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; |
0f113f3e | 2670 | ret->verify_mode = SSL_VERIFY_NONE; |
0f113f3e MC |
2671 | if ((ret->cert = ssl_cert_new()) == NULL) |
2672 | goto err; | |
2673 | ||
62d0577e | 2674 | ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp); |
0f113f3e MC |
2675 | if (ret->sessions == NULL) |
2676 | goto err; | |
2677 | ret->cert_store = X509_STORE_new(); | |
2678 | if (ret->cert_store == NULL) | |
2679 | goto err; | |
ed29e82a RP |
2680 | #ifndef OPENSSL_NO_CT |
2681 | ret->ctlog_store = CTLOG_STORE_new(); | |
2682 | if (ret->ctlog_store == NULL) | |
2683 | goto err; | |
2684 | #endif | |
61986d32 | 2685 | if (!ssl_create_cipher_list(ret->method, |
a230b26e EK |
2686 | &ret->cipher_list, &ret->cipher_list_by_id, |
2687 | SSL_DEFAULT_CIPHER_LIST, ret->cert) | |
2688 | || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { | |
0f113f3e MC |
2689 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS); |
2690 | goto err2; | |
2691 | } | |
2692 | ||
2693 | ret->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 2694 | if (ret->param == NULL) |
0f113f3e MC |
2695 | goto err; |
2696 | ||
2697 | if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) { | |
2698 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); | |
2699 | goto err2; | |
2700 | } | |
2701 | if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) { | |
2702 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); | |
2703 | goto err2; | |
2704 | } | |
2705 | ||
2706 | if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL) | |
2707 | goto err; | |
2708 | ||
25a807bc F |
2709 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) |
2710 | goto err; | |
0f113f3e | 2711 | |
0f113f3e MC |
2712 | /* No compression for DTLS */ |
2713 | if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)) | |
2714 | ret->comp_methods = SSL_COMP_get_compression_methods(); | |
2715 | ||
2716 | ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; | |
d102d9df | 2717 | ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; |
566dda07 | 2718 | |
4e2e1ec9 | 2719 | /* Setup RFC5077 ticket keys */ |
aff8c126 RS |
2720 | if ((RAND_bytes(ret->ext.tick_key_name, |
2721 | sizeof(ret->ext.tick_key_name)) <= 0) | |
2722 | || (RAND_bytes(ret->ext.tick_hmac_key, | |
2723 | sizeof(ret->ext.tick_hmac_key)) <= 0) | |
2724 | || (RAND_bytes(ret->ext.tick_aes_key, | |
2725 | sizeof(ret->ext.tick_aes_key)) <= 0)) | |
0f113f3e | 2726 | ret->options |= SSL_OP_NO_TICKET; |
6434abbf | 2727 | |
edc032b5 | 2728 | #ifndef OPENSSL_NO_SRP |
61986d32 | 2729 | if (!SSL_CTX_SRP_CTX_init(ret)) |
69f68237 | 2730 | goto err; |
edc032b5 | 2731 | #endif |
4db9677b | 2732 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e MC |
2733 | # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO |
2734 | # define eng_strx(x) #x | |
2735 | # define eng_str(x) eng_strx(x) | |
2736 | /* Use specific client engine automatically... ignore errors */ | |
2737 | { | |
2738 | ENGINE *eng; | |
2739 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2740 | if (!eng) { | |
2741 | ERR_clear_error(); | |
2742 | ENGINE_load_builtin_engines(); | |
2743 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2744 | } | |
2745 | if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) | |
2746 | ERR_clear_error(); | |
2747 | } | |
2748 | # endif | |
2749 | #endif | |
2750 | /* | |
2751 | * Default is to connect to non-RI servers. When RI is more widely | |
2752 | * deployed might change this. | |
2753 | */ | |
2754 | ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; | |
dc5744cb EK |
2755 | /* |
2756 | * Disable compression by default to prevent CRIME. Applications can | |
2757 | * re-enable compression by configuring | |
2758 | * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION); | |
2759 | * or by using the SSL_CONF library. | |
2760 | */ | |
2761 | ret->options |= SSL_OP_NO_COMPRESSION; | |
0f113f3e | 2762 | |
aff8c126 | 2763 | ret->ext.status_type = TLSEXT_STATUSTYPE_nothing; |
ba261f71 | 2764 | |
bfa9a9af MC |
2765 | /* |
2766 | * Default max early data is a fully loaded single record. Could be split | |
2767 | * across multiple records in practice | |
2768 | */ | |
2769 | ret->max_early_data = SSL3_RT_MAX_PLAIN_LENGTH; | |
2770 | ||
16203f7b | 2771 | return ret; |
0f113f3e MC |
2772 | err: |
2773 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2774 | err2: | |
e0e920b1 | 2775 | SSL_CTX_free(ret); |
16203f7b | 2776 | return NULL; |
0f113f3e | 2777 | } |
d02b48c6 | 2778 | |
c5ebfcab | 2779 | int SSL_CTX_up_ref(SSL_CTX *ctx) |
a18a31e4 | 2780 | { |
16203f7b | 2781 | int i; |
c5ebfcab | 2782 | |
2f545ae4 | 2783 | if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0) |
c5ebfcab F |
2784 | return 0; |
2785 | ||
2786 | REF_PRINT_COUNT("SSL_CTX", ctx); | |
2787 | REF_ASSERT_ISNT(i < 2); | |
2788 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
2789 | } |
2790 | ||
4f43d0e7 | 2791 | void SSL_CTX_free(SSL_CTX *a) |
0f113f3e MC |
2792 | { |
2793 | int i; | |
d02b48c6 | 2794 | |
0f113f3e MC |
2795 | if (a == NULL) |
2796 | return; | |
d02b48c6 | 2797 | |
2f545ae4 | 2798 | CRYPTO_DOWN_REF(&a->references, &i, a->lock); |
f3f1cf84 | 2799 | REF_PRINT_COUNT("SSL_CTX", a); |
0f113f3e MC |
2800 | if (i > 0) |
2801 | return; | |
f3f1cf84 | 2802 | REF_ASSERT_ISNT(i < 0); |
0f113f3e | 2803 | |
222561fe | 2804 | X509_VERIFY_PARAM_free(a->param); |
919ba009 | 2805 | dane_ctx_final(&a->dane); |
0f113f3e MC |
2806 | |
2807 | /* | |
2808 | * Free internal session cache. However: the remove_cb() may reference | |
2809 | * the ex_data of SSL_CTX, thus the ex_data store can only be removed | |
2810 | * after the sessions were flushed. | |
2811 | * As the ex_data handling routines might also touch the session cache, | |
2812 | * the most secure solution seems to be: empty (flush) the cache, then | |
2813 | * free ex_data, then finally free the cache. | |
2814 | * (See ticket [openssl.org #212].) | |
2815 | */ | |
2816 | if (a->sessions != NULL) | |
2817 | SSL_CTX_flush_sessions(a, 0); | |
2818 | ||
2819 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); | |
25aaa98a | 2820 | lh_SSL_SESSION_free(a->sessions); |
222561fe | 2821 | X509_STORE_free(a->cert_store); |
ed29e82a RP |
2822 | #ifndef OPENSSL_NO_CT |
2823 | CTLOG_STORE_free(a->ctlog_store); | |
2824 | #endif | |
25aaa98a RS |
2825 | sk_SSL_CIPHER_free(a->cipher_list); |
2826 | sk_SSL_CIPHER_free(a->cipher_list_by_id); | |
e0e920b1 | 2827 | ssl_cert_free(a->cert); |
222561fe RS |
2828 | sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free); |
2829 | sk_X509_pop_free(a->extra_certs, X509_free); | |
0f113f3e | 2830 | a->comp_methods = NULL; |
e783bae2 | 2831 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 2832 | sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); |
e783bae2 | 2833 | #endif |
edc032b5 | 2834 | #ifndef OPENSSL_NO_SRP |
0f113f3e | 2835 | SSL_CTX_SRP_CTX_free(a); |
edc032b5 | 2836 | #endif |
bdfe932d | 2837 | #ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 2838 | ENGINE_finish(a->client_cert_engine); |
ddac1974 | 2839 | #endif |
8671b898 | 2840 | |
e481f9b9 | 2841 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
2842 | OPENSSL_free(a->ext.ecpointformats); |
2843 | OPENSSL_free(a->ext.supportedgroups); | |
8671b898 | 2844 | #endif |
aff8c126 | 2845 | OPENSSL_free(a->ext.alpn); |
8671b898 | 2846 | |
16203f7b AG |
2847 | CRYPTO_THREAD_lock_free(a->lock); |
2848 | ||
0f113f3e MC |
2849 | OPENSSL_free(a); |
2850 | } | |
d02b48c6 | 2851 | |
3ae76679 | 2852 | void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) |
0f113f3e MC |
2853 | { |
2854 | ctx->default_passwd_callback = cb; | |
2855 | } | |
2856 | ||
2857 | void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) | |
2858 | { | |
2859 | ctx->default_passwd_callback_userdata = u; | |
2860 | } | |
2861 | ||
0c452abc CH |
2862 | pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) |
2863 | { | |
2864 | return ctx->default_passwd_callback; | |
2865 | } | |
2866 | ||
2867 | void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) | |
2868 | { | |
2869 | return ctx->default_passwd_callback_userdata; | |
2870 | } | |
2871 | ||
a974e64a MC |
2872 | void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb) |
2873 | { | |
2874 | s->default_passwd_callback = cb; | |
2875 | } | |
2876 | ||
2877 | void SSL_set_default_passwd_cb_userdata(SSL *s, void *u) | |
2878 | { | |
2879 | s->default_passwd_callback_userdata = u; | |
2880 | } | |
2881 | ||
0c452abc CH |
2882 | pem_password_cb *SSL_get_default_passwd_cb(SSL *s) |
2883 | { | |
2884 | return s->default_passwd_callback; | |
2885 | } | |
2886 | ||
2887 | void *SSL_get_default_passwd_cb_userdata(SSL *s) | |
2888 | { | |
2889 | return s->default_passwd_callback_userdata; | |
2890 | } | |
2891 | ||
0f113f3e MC |
2892 | void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, |
2893 | int (*cb) (X509_STORE_CTX *, void *), | |
2894 | void *arg) | |
2895 | { | |
2896 | ctx->app_verify_callback = cb; | |
2897 | ctx->app_verify_arg = arg; | |
2898 | } | |
2899 | ||
2900 | void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, | |
2901 | int (*cb) (int, X509_STORE_CTX *)) | |
2902 | { | |
2903 | ctx->verify_mode = mode; | |
2904 | ctx->default_verify_callback = cb; | |
2905 | } | |
2906 | ||
2907 | void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) | |
2908 | { | |
2909 | X509_VERIFY_PARAM_set_depth(ctx->param, depth); | |
2910 | } | |
2911 | ||
a230b26e | 2912 | void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg) |
0f113f3e MC |
2913 | { |
2914 | ssl_cert_set_cert_cb(c->cert, cb, arg); | |
2915 | } | |
2916 | ||
2917 | void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg) | |
2918 | { | |
2919 | ssl_cert_set_cert_cb(s->cert, cb, arg); | |
2920 | } | |
18d71588 | 2921 | |
2cf28d61 | 2922 | void ssl_set_masks(SSL *s) |
0f113f3e | 2923 | { |
6383d316 | 2924 | CERT *c = s->cert; |
f7d53487 | 2925 | uint32_t *pvalid = s->s3->tmp.valid_flags; |
bc71f910 | 2926 | int rsa_enc, rsa_sign, dh_tmp, dsa_sign; |
361a1191 | 2927 | unsigned long mask_k, mask_a; |
10bf4fc2 | 2928 | #ifndef OPENSSL_NO_EC |
361a1191 | 2929 | int have_ecc_cert, ecdsa_ok; |
14536c8c | 2930 | #endif |
0f113f3e MC |
2931 | if (c == NULL) |
2932 | return; | |
d02b48c6 | 2933 | |
bc36ee62 | 2934 | #ifndef OPENSSL_NO_DH |
0f113f3e | 2935 | dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto); |
d02b48c6 | 2936 | #else |
361a1191 | 2937 | dh_tmp = 0; |
d02b48c6 RE |
2938 | #endif |
2939 | ||
d0ff28f8 | 2940 | rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID; |
38e8f3cd DSH |
2941 | rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID; |
2942 | dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID; | |
14536c8c | 2943 | #ifndef OPENSSL_NO_EC |
6383d316 | 2944 | have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID; |
14536c8c | 2945 | #endif |
0f113f3e MC |
2946 | mask_k = 0; |
2947 | mask_a = 0; | |
0e1dba93 | 2948 | |
d02b48c6 | 2949 | #ifdef CIPHER_DEBUG |
b7557ccf AG |
2950 | fprintf(stderr, "dht=%d re=%d rs=%d ds=%d\n", |
2951 | dh_tmp, rsa_enc, rsa_sign, dsa_sign); | |
0f113f3e MC |
2952 | #endif |
2953 | ||
2a9b9654 | 2954 | #ifndef OPENSSL_NO_GOST |
4020c0b3 | 2955 | if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) { |
e44380a9 DB |
2956 | mask_k |= SSL_kGOST; |
2957 | mask_a |= SSL_aGOST12; | |
2958 | } | |
4020c0b3 | 2959 | if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) { |
e44380a9 DB |
2960 | mask_k |= SSL_kGOST; |
2961 | mask_a |= SSL_aGOST12; | |
2962 | } | |
4020c0b3 | 2963 | if (ssl_has_cert(s, SSL_PKEY_GOST01)) { |
0f113f3e MC |
2964 | mask_k |= SSL_kGOST; |
2965 | mask_a |= SSL_aGOST01; | |
2966 | } | |
2a9b9654 | 2967 | #endif |
0f113f3e | 2968 | |
361a1191 | 2969 | if (rsa_enc) |
0f113f3e | 2970 | mask_k |= SSL_kRSA; |
d02b48c6 | 2971 | |
0f113f3e MC |
2972 | if (dh_tmp) |
2973 | mask_k |= SSL_kDHE; | |
d02b48c6 | 2974 | |
0f113f3e MC |
2975 | if (rsa_enc || rsa_sign) { |
2976 | mask_a |= SSL_aRSA; | |
0f113f3e | 2977 | } |
d02b48c6 | 2978 | |
0f113f3e MC |
2979 | if (dsa_sign) { |
2980 | mask_a |= SSL_aDSS; | |
0f113f3e | 2981 | } |
d02b48c6 | 2982 | |
0f113f3e | 2983 | mask_a |= SSL_aNULL; |
d02b48c6 | 2984 | |
0f113f3e MC |
2985 | /* |
2986 | * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites | |
2987 | * depending on the key usage extension. | |
2988 | */ | |
14536c8c | 2989 | #ifndef OPENSSL_NO_EC |
0f113f3e | 2990 | if (have_ecc_cert) { |
a8d8e06b | 2991 | uint32_t ex_kusage; |
4020c0b3 | 2992 | ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509); |
a8d8e06b | 2993 | ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE; |
6383d316 | 2994 | if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN)) |
0f113f3e | 2995 | ecdsa_ok = 0; |
c7c46256 | 2996 | if (ecdsa_ok) |
0f113f3e | 2997 | mask_a |= SSL_aECDSA; |
0f113f3e | 2998 | } |
14536c8c | 2999 | #endif |
ea262260 | 3000 | |
10bf4fc2 | 3001 | #ifndef OPENSSL_NO_EC |
fe6ef247 | 3002 | mask_k |= SSL_kECDHE; |
ea262260 | 3003 | #endif |
ddac1974 NL |
3004 | |
3005 | #ifndef OPENSSL_NO_PSK | |
0f113f3e MC |
3006 | mask_k |= SSL_kPSK; |
3007 | mask_a |= SSL_aPSK; | |
526f94ad DSH |
3008 | if (mask_k & SSL_kRSA) |
3009 | mask_k |= SSL_kRSAPSK; | |
3010 | if (mask_k & SSL_kDHE) | |
3011 | mask_k |= SSL_kDHEPSK; | |
3012 | if (mask_k & SSL_kECDHE) | |
3013 | mask_k |= SSL_kECDHEPSK; | |
ddac1974 NL |
3014 | #endif |
3015 | ||
4d69f9e6 DSH |
3016 | s->s3->tmp.mask_k = mask_k; |
3017 | s->s3->tmp.mask_a = mask_a; | |
0f113f3e | 3018 | } |
d02b48c6 | 3019 | |
ef236ec3 DSH |
3020 | #ifndef OPENSSL_NO_EC |
3021 | ||
a2f9200f | 3022 | int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) |
0f113f3e | 3023 | { |
ce0c1f2b | 3024 | if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aECDSA) { |
0f113f3e | 3025 | /* key usage, if present, must allow signing */ |
ce0c1f2b | 3026 | if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) { |
0f113f3e MC |
3027 | SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, |
3028 | SSL_R_ECC_CERT_NOT_FOR_SIGNING); | |
3029 | return 0; | |
3030 | } | |
3031 | } | |
0f113f3e MC |
3032 | return 1; /* all checks are ok */ |
3033 | } | |
ea262260 | 3034 | |
ef236ec3 DSH |
3035 | #endif |
3036 | ||
a398f821 | 3037 | int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, |
0f113f3e MC |
3038 | size_t *serverinfo_length) |
3039 | { | |
a497cf25 | 3040 | CERT_PKEY *cpk = s->s3->tmp.cert; |
0f113f3e MC |
3041 | *serverinfo_length = 0; |
3042 | ||
a497cf25 | 3043 | if (cpk == NULL || cpk->serverinfo == NULL) |
0f113f3e MC |
3044 | return 0; |
3045 | ||
a497cf25 DSH |
3046 | *serverinfo = cpk->serverinfo; |
3047 | *serverinfo_length = cpk->serverinfo_length; | |
0f113f3e MC |
3048 | return 1; |
3049 | } | |
0f113f3e MC |
3050 | |
3051 | void ssl_update_cache(SSL *s, int mode) | |
3052 | { | |
3053 | int i; | |
3054 | ||
3055 | /* | |
3056 | * If the session_id_length is 0, we are not supposed to cache it, and it | |
3057 | * would be rather hard to do anyway :-) | |
3058 | */ | |
3059 | if (s->session->session_id_length == 0) | |
3060 | return; | |
3061 | ||
3062 | i = s->session_ctx->session_cache_mode; | |
3063 | if ((i & mode) && (!s->hit) | |
3064 | && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) | |
3065 | || SSL_CTX_add_session(s->session_ctx, s->session)) | |
3066 | && (s->session_ctx->new_session_cb != NULL)) { | |
16203f7b | 3067 | SSL_SESSION_up_ref(s->session); |
0f113f3e MC |
3068 | if (!s->session_ctx->new_session_cb(s, s->session)) |
3069 | SSL_SESSION_free(s->session); | |
3070 | } | |
3071 | ||
3072 | /* auto flush every 255 connections */ | |
3073 | if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) { | |
3074 | if ((((mode & SSL_SESS_CACHE_CLIENT) | |
3075 | ? s->session_ctx->stats.sess_connect_good | |
3076 | : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) { | |
3077 | SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL)); | |
3078 | } | |
3079 | } | |
3080 | } | |
d02b48c6 | 3081 | |
ba168244 | 3082 | const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx) |
0f113f3e MC |
3083 | { |
3084 | return ctx->method; | |
3085 | } | |
ba168244 | 3086 | |
4ebb342f | 3087 | const SSL_METHOD *SSL_get_ssl_method(SSL *s) |
0f113f3e MC |
3088 | { |
3089 | return (s->method); | |
3090 | } | |
d02b48c6 | 3091 | |
4ebb342f | 3092 | int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) |
0f113f3e | 3093 | { |
0f113f3e MC |
3094 | int ret = 1; |
3095 | ||
3096 | if (s->method != meth) { | |
919ba009 | 3097 | const SSL_METHOD *sm = s->method; |
a230b26e | 3098 | int (*hf) (SSL *) = s->handshake_func; |
0f113f3e | 3099 | |
919ba009 | 3100 | if (sm->version == meth->version) |
0f113f3e MC |
3101 | s->method = meth; |
3102 | else { | |
919ba009 | 3103 | sm->ssl_free(s); |
0f113f3e MC |
3104 | s->method = meth; |
3105 | ret = s->method->ssl_new(s); | |
3106 | } | |
3107 | ||
919ba009 | 3108 | if (hf == sm->ssl_connect) |
0f113f3e | 3109 | s->handshake_func = meth->ssl_connect; |
919ba009 | 3110 | else if (hf == sm->ssl_accept) |
0f113f3e MC |
3111 | s->handshake_func = meth->ssl_accept; |
3112 | } | |
3113 | return (ret); | |
3114 | } | |
3115 | ||
3116 | int SSL_get_error(const SSL *s, int i) | |
3117 | { | |
3118 | int reason; | |
3119 | unsigned long l; | |
3120 | BIO *bio; | |
3121 | ||
3122 | if (i > 0) | |
3123 | return (SSL_ERROR_NONE); | |
3124 | ||
3125 | /* | |
3126 | * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc, | |
3127 | * where we do encode the error | |
3128 | */ | |
3129 | if ((l = ERR_peek_error()) != 0) { | |
3130 | if (ERR_GET_LIB(l) == ERR_LIB_SYS) | |
3131 | return (SSL_ERROR_SYSCALL); | |
3132 | else | |
3133 | return (SSL_ERROR_SSL); | |
3134 | } | |
3135 | ||
8051ab2b MC |
3136 | if (SSL_want_read(s)) { |
3137 | bio = SSL_get_rbio(s); | |
3138 | if (BIO_should_read(bio)) | |
3139 | return (SSL_ERROR_WANT_READ); | |
3140 | else if (BIO_should_write(bio)) | |
3141 | /* | |
3142 | * This one doesn't make too much sense ... We never try to write | |
3143 | * to the rbio, and an application program where rbio and wbio | |
3144 | * are separate couldn't even know what it should wait for. | |
3145 | * However if we ever set s->rwstate incorrectly (so that we have | |
3146 | * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and | |
3147 | * wbio *are* the same, this test works around that bug; so it | |
3148 | * might be safer to keep it. | |
3149 | */ | |
3150 | return (SSL_ERROR_WANT_WRITE); | |
3151 | else if (BIO_should_io_special(bio)) { | |
3152 | reason = BIO_get_retry_reason(bio); | |
3153 | if (reason == BIO_RR_CONNECT) | |
3154 | return (SSL_ERROR_WANT_CONNECT); | |
3155 | else if (reason == BIO_RR_ACCEPT) | |
3156 | return (SSL_ERROR_WANT_ACCEPT); | |
3157 | else | |
3158 | return (SSL_ERROR_SYSCALL); /* unknown */ | |
0f113f3e | 3159 | } |
8051ab2b | 3160 | } |
0f113f3e | 3161 | |
8051ab2b MC |
3162 | if (SSL_want_write(s)) { |
3163 | /* | |
3164 | * Access wbio directly - in order to use the buffered bio if | |
3165 | * present | |
3166 | */ | |
3167 | bio = s->wbio; | |
3168 | if (BIO_should_write(bio)) | |
3169 | return (SSL_ERROR_WANT_WRITE); | |
3170 | else if (BIO_should_read(bio)) | |
2e7dc7cd | 3171 | /* |
8051ab2b | 3172 | * See above (SSL_want_read(s) with BIO_should_write(bio)) |
2e7dc7cd | 3173 | */ |
8051ab2b MC |
3174 | return (SSL_ERROR_WANT_READ); |
3175 | else if (BIO_should_io_special(bio)) { | |
3176 | reason = BIO_get_retry_reason(bio); | |
3177 | if (reason == BIO_RR_CONNECT) | |
3178 | return (SSL_ERROR_WANT_CONNECT); | |
3179 | else if (reason == BIO_RR_ACCEPT) | |
3180 | return (SSL_ERROR_WANT_ACCEPT); | |
3181 | else | |
3182 | return (SSL_ERROR_SYSCALL); | |
0f113f3e | 3183 | } |
07bbc92c | 3184 | } |
6b1bb98f | 3185 | if (SSL_want_x509_lookup(s)) |
8051ab2b | 3186 | return (SSL_ERROR_WANT_X509_LOOKUP); |
6b1bb98f | 3187 | if (SSL_want_async(s)) |
8051ab2b | 3188 | return SSL_ERROR_WANT_ASYNC; |
6b1bb98f | 3189 | if (SSL_want_async_job(s)) |
8051ab2b | 3190 | return SSL_ERROR_WANT_ASYNC_JOB; |
6b1bb98f BK |
3191 | if (SSL_want_early(s)) |
3192 | return SSL_ERROR_WANT_EARLY; | |
8051ab2b MC |
3193 | |
3194 | if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && | |
3195 | (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) | |
3196 | return (SSL_ERROR_ZERO_RETURN); | |
3197 | ||
0f113f3e MC |
3198 | return (SSL_ERROR_SYSCALL); |
3199 | } | |
d02b48c6 | 3200 | |
add2f5ca MC |
3201 | static int ssl_do_handshake_intern(void *vargs) |
3202 | { | |
3203 | struct ssl_async_args *args; | |
3204 | SSL *s; | |
3205 | ||
3206 | args = (struct ssl_async_args *)vargs; | |
3207 | s = args->s; | |
3208 | ||
3209 | return s->handshake_func(s); | |
3210 | } | |
3211 | ||
4f43d0e7 | 3212 | int SSL_do_handshake(SSL *s) |
0f113f3e MC |
3213 | { |
3214 | int ret = 1; | |
3215 | ||
3216 | if (s->handshake_func == NULL) { | |
3217 | SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET); | |
add2f5ca | 3218 | return -1; |
0f113f3e MC |
3219 | } |
3220 | ||
49e7fe12 MC |
3221 | if (s->early_data_state == SSL_EARLY_DATA_WRITE_RETRY |
3222 | || s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY) | |
3223 | return -1; | |
3224 | ||
c7f47786 | 3225 | s->method->ssl_renegotiate_check(s, 0); |
0f113f3e MC |
3226 | |
3227 | if (SSL_in_init(s) || SSL_in_before(s)) { | |
e8aa8b6c | 3228 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca MC |
3229 | struct ssl_async_args args; |
3230 | ||
3231 | args.s = s; | |
3232 | ||
7fecbf6f | 3233 | ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern); |
add2f5ca MC |
3234 | } else { |
3235 | ret = s->handshake_func(s); | |
3236 | } | |
0f113f3e | 3237 | } |
add2f5ca | 3238 | return ret; |
0f113f3e MC |
3239 | } |
3240 | ||
4f43d0e7 | 3241 | void SSL_set_accept_state(SSL *s) |
0f113f3e MC |
3242 | { |
3243 | s->server = 1; | |
3244 | s->shutdown = 0; | |
fe3a3291 | 3245 | ossl_statem_clear(s); |
0f113f3e | 3246 | s->handshake_func = s->method->ssl_accept; |
d31fb0b5 | 3247 | clear_ciphers(s); |
0f113f3e | 3248 | } |
d02b48c6 | 3249 | |
4f43d0e7 | 3250 | void SSL_set_connect_state(SSL *s) |
0f113f3e MC |
3251 | { |
3252 | s->server = 0; | |
3253 | s->shutdown = 0; | |
fe3a3291 | 3254 | ossl_statem_clear(s); |
0f113f3e | 3255 | s->handshake_func = s->method->ssl_connect; |
d31fb0b5 | 3256 | clear_ciphers(s); |
0f113f3e | 3257 | } |
d02b48c6 | 3258 | |
4f43d0e7 | 3259 | int ssl_undefined_function(SSL *s) |
0f113f3e MC |
3260 | { |
3261 | SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3262 | return (0); | |
3263 | } | |
d02b48c6 | 3264 | |
41a15c4f | 3265 | int ssl_undefined_void_function(void) |
0f113f3e MC |
3266 | { |
3267 | SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION, | |
3268 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3269 | return (0); | |
3270 | } | |
41a15c4f | 3271 | |
0821bcd4 | 3272 | int ssl_undefined_const_function(const SSL *s) |
0f113f3e | 3273 | { |
0f113f3e MC |
3274 | return (0); |
3275 | } | |
0821bcd4 | 3276 | |
2b8fa1d5 | 3277 | const SSL_METHOD *ssl_bad_method(int ver) |
0f113f3e MC |
3278 | { |
3279 | SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3280 | return (NULL); | |
3281 | } | |
d02b48c6 | 3282 | |
3eb2aff4 | 3283 | const char *ssl_protocol_to_string(int version) |
7d650072 | 3284 | { |
2abacef1 MC |
3285 | switch(version) |
3286 | { | |
3287 | case TLS1_3_VERSION: | |
582a17d6 | 3288 | return "TLSv1.3"; |
2abacef1 MC |
3289 | |
3290 | case TLS1_2_VERSION: | |
7d650072 | 3291 | return "TLSv1.2"; |
2abacef1 MC |
3292 | |
3293 | case TLS1_1_VERSION: | |
7d650072 | 3294 | return "TLSv1.1"; |
2abacef1 MC |
3295 | |
3296 | case TLS1_VERSION: | |
ee3a6c64 | 3297 | return "TLSv1"; |
2abacef1 MC |
3298 | |
3299 | case SSL3_VERSION: | |
7d650072 | 3300 | return "SSLv3"; |
2abacef1 MC |
3301 | |
3302 | case DTLS1_BAD_VER: | |
7d650072 | 3303 | return "DTLSv0.9"; |
2abacef1 MC |
3304 | |
3305 | case DTLS1_VERSION: | |
7d650072 | 3306 | return "DTLSv1"; |
2abacef1 MC |
3307 | |
3308 | case DTLS1_2_VERSION: | |
7d650072 | 3309 | return "DTLSv1.2"; |
2abacef1 MC |
3310 | |
3311 | default: | |
3312 | return "unknown"; | |
3313 | } | |
0f113f3e | 3314 | } |
d02b48c6 | 3315 | |
7d650072 KR |
3316 | const char *SSL_get_version(const SSL *s) |
3317 | { | |
3eb2aff4 | 3318 | return ssl_protocol_to_string(s->version); |
7d650072 KR |
3319 | } |
3320 | ||
4f43d0e7 | 3321 | SSL *SSL_dup(SSL *s) |
0f113f3e MC |
3322 | { |
3323 | STACK_OF(X509_NAME) *sk; | |
3324 | X509_NAME *xn; | |
3325 | SSL *ret; | |
3326 | int i; | |
3327 | ||
919ba009 VD |
3328 | /* If we're not quiescent, just up_ref! */ |
3329 | if (!SSL_in_init(s) || !SSL_in_before(s)) { | |
2f545ae4 | 3330 | CRYPTO_UP_REF(&s->references, &i, s->lock); |
919ba009 VD |
3331 | return s; |
3332 | } | |
3333 | ||
3334 | /* | |
3335 | * Otherwise, copy configuration state, and session if set. | |
3336 | */ | |
0f113f3e MC |
3337 | if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) |
3338 | return (NULL); | |
3339 | ||
0f113f3e | 3340 | if (s->session != NULL) { |
919ba009 VD |
3341 | /* |
3342 | * Arranges to share the same session via up_ref. This "copies" | |
3343 | * session-id, SSL_METHOD, sid_ctx, and 'cert' | |
3344 | */ | |
61986d32 | 3345 | if (!SSL_copy_session_id(ret, s)) |
17dd65e6 | 3346 | goto err; |
0f113f3e MC |
3347 | } else { |
3348 | /* | |
3349 | * No session has been established yet, so we have to expect that | |
3350 | * s->cert or ret->cert will be changed later -- they should not both | |
3351 | * point to the same object, and thus we can't use | |
3352 | * SSL_copy_session_id. | |
3353 | */ | |
919ba009 VD |
3354 | if (!SSL_set_ssl_method(ret, s->method)) |
3355 | goto err; | |
0f113f3e MC |
3356 | |
3357 | if (s->cert != NULL) { | |
e0e920b1 | 3358 | ssl_cert_free(ret->cert); |
0f113f3e MC |
3359 | ret->cert = ssl_cert_dup(s->cert); |
3360 | if (ret->cert == NULL) | |
3361 | goto err; | |
3362 | } | |
3363 | ||
348240c6 MC |
3364 | if (!SSL_set_session_id_context(ret, s->sid_ctx, |
3365 | (int)s->sid_ctx_length)) | |
69f68237 | 3366 | goto err; |
0f113f3e MC |
3367 | } |
3368 | ||
9f6b22b8 VD |
3369 | if (!ssl_dane_dup(ret, s)) |
3370 | goto err; | |
919ba009 | 3371 | ret->version = s->version; |
0f113f3e MC |
3372 | ret->options = s->options; |
3373 | ret->mode = s->mode; | |
3374 | SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); | |
3375 | SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); | |
3376 | ret->msg_callback = s->msg_callback; | |
3377 | ret->msg_callback_arg = s->msg_callback_arg; | |
3378 | SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s)); | |
3379 | SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); | |
3380 | ret->generate_session_id = s->generate_session_id; | |
3381 | ||
3382 | SSL_set_info_callback(ret, SSL_get_info_callback(s)); | |
3383 | ||
0f113f3e MC |
3384 | /* copy app data, a little dangerous perhaps */ |
3385 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) | |
3386 | goto err; | |
3387 | ||
3388 | /* setup rbio, and wbio */ | |
3389 | if (s->rbio != NULL) { | |
3390 | if (!BIO_dup_state(s->rbio, (char *)&ret->rbio)) | |
3391 | goto err; | |
3392 | } | |
3393 | if (s->wbio != NULL) { | |
3394 | if (s->wbio != s->rbio) { | |
3395 | if (!BIO_dup_state(s->wbio, (char *)&ret->wbio)) | |
3396 | goto err; | |
65e2d672 MC |
3397 | } else { |
3398 | BIO_up_ref(ret->rbio); | |
0f113f3e | 3399 | ret->wbio = ret->rbio; |
65e2d672 | 3400 | } |
0f113f3e | 3401 | } |
919ba009 | 3402 | |
0f113f3e | 3403 | ret->server = s->server; |
919ba009 VD |
3404 | if (s->handshake_func) { |
3405 | if (s->server) | |
3406 | SSL_set_accept_state(ret); | |
3407 | else | |
3408 | SSL_set_connect_state(ret); | |
3409 | } | |
0f113f3e | 3410 | ret->shutdown = s->shutdown; |
0f113f3e MC |
3411 | ret->hit = s->hit; |
3412 | ||
a974e64a MC |
3413 | ret->default_passwd_callback = s->default_passwd_callback; |
3414 | ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata; | |
3415 | ||
0f113f3e MC |
3416 | X509_VERIFY_PARAM_inherit(ret->param, s->param); |
3417 | ||
3418 | /* dup the cipher_list and cipher_list_by_id stacks */ | |
3419 | if (s->cipher_list != NULL) { | |
3420 | if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) | |
3421 | goto err; | |
3422 | } | |
3423 | if (s->cipher_list_by_id != NULL) | |
3424 | if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id)) | |
3425 | == NULL) | |
3426 | goto err; | |
3427 | ||
3428 | /* Dup the client_CA list */ | |
3429 | if (s->client_CA != NULL) { | |
3430 | if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL) | |
3431 | goto err; | |
3432 | ret->client_CA = sk; | |
3433 | for (i = 0; i < sk_X509_NAME_num(sk); i++) { | |
3434 | xn = sk_X509_NAME_value(sk, i); | |
3435 | if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) { | |
3436 | X509_NAME_free(xn); | |
3437 | goto err; | |
3438 | } | |
3439 | } | |
3440 | } | |
66696478 | 3441 | return ret; |
0f113f3e | 3442 | |
0f113f3e | 3443 | err: |
66696478 RS |
3444 | SSL_free(ret); |
3445 | return NULL; | |
0f113f3e | 3446 | } |
d02b48c6 | 3447 | |
4f43d0e7 | 3448 | void ssl_clear_cipher_ctx(SSL *s) |
0f113f3e MC |
3449 | { |
3450 | if (s->enc_read_ctx != NULL) { | |
846ec07d | 3451 | EVP_CIPHER_CTX_free(s->enc_read_ctx); |
0f113f3e MC |
3452 | s->enc_read_ctx = NULL; |
3453 | } | |
3454 | if (s->enc_write_ctx != NULL) { | |
846ec07d | 3455 | EVP_CIPHER_CTX_free(s->enc_write_ctx); |
0f113f3e MC |
3456 | s->enc_write_ctx = NULL; |
3457 | } | |
09b6c2ef | 3458 | #ifndef OPENSSL_NO_COMP |
efa7dd64 RS |
3459 | COMP_CTX_free(s->expand); |
3460 | s->expand = NULL; | |
3461 | COMP_CTX_free(s->compress); | |
3462 | s->compress = NULL; | |
0f113f3e MC |
3463 | #endif |
3464 | } | |
d02b48c6 | 3465 | |
0821bcd4 | 3466 | X509 *SSL_get_certificate(const SSL *s) |
0f113f3e MC |
3467 | { |
3468 | if (s->cert != NULL) | |
3469 | return (s->cert->key->x509); | |
3470 | else | |
3471 | return (NULL); | |
3472 | } | |
d02b48c6 | 3473 | |
a25f9adc | 3474 | EVP_PKEY *SSL_get_privatekey(const SSL *s) |
0f113f3e MC |
3475 | { |
3476 | if (s->cert != NULL) | |
3477 | return (s->cert->key->privatekey); | |
3478 | else | |
3479 | return (NULL); | |
3480 | } | |
d02b48c6 | 3481 | |
a25f9adc | 3482 | X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx) |
0f113f3e MC |
3483 | { |
3484 | if (ctx->cert != NULL) | |
3485 | return ctx->cert->key->x509; | |
3486 | else | |
3487 | return NULL; | |
3488 | } | |
a25f9adc DSH |
3489 | |
3490 | EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx) | |
0f113f3e MC |
3491 | { |
3492 | if (ctx->cert != NULL) | |
3493 | return ctx->cert->key->privatekey; | |
3494 | else | |
3495 | return NULL; | |
3496 | } | |
a25f9adc | 3497 | |
babb3798 | 3498 | const SSL_CIPHER *SSL_get_current_cipher(const SSL *s) |
0f113f3e MC |
3499 | { |
3500 | if ((s->session != NULL) && (s->session->cipher != NULL)) | |
3501 | return (s->session->cipher); | |
3502 | return (NULL); | |
3503 | } | |
3504 | ||
377dcdba | 3505 | const COMP_METHOD *SSL_get_current_compression(SSL *s) |
0f113f3e | 3506 | { |
9a555706 RS |
3507 | #ifndef OPENSSL_NO_COMP |
3508 | return s->compress ? COMP_CTX_get_method(s->compress) : NULL; | |
3509 | #else | |
3510 | return NULL; | |
3511 | #endif | |
0f113f3e | 3512 | } |
377dcdba RL |
3513 | |
3514 | const COMP_METHOD *SSL_get_current_expansion(SSL *s) | |
0f113f3e | 3515 | { |
9a555706 RS |
3516 | #ifndef OPENSSL_NO_COMP |
3517 | return s->expand ? COMP_CTX_get_method(s->expand) : NULL; | |
3518 | #else | |
3519 | return NULL; | |
0f113f3e | 3520 | #endif |
9a555706 | 3521 | } |
0f113f3e | 3522 | |
46417569 | 3523 | int ssl_init_wbio_buffer(SSL *s) |
0f113f3e MC |
3524 | { |
3525 | BIO *bbio; | |
3526 | ||
2e7dc7cd MC |
3527 | if (s->bbio != NULL) { |
3528 | /* Already buffered. */ | |
3529 | return 1; | |
0f113f3e | 3530 | } |
46417569 | 3531 | |
2e7dc7cd MC |
3532 | bbio = BIO_new(BIO_f_buffer()); |
3533 | if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) { | |
3534 | BIO_free(bbio); | |
0f113f3e | 3535 | SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB); |
46417569 | 3536 | return 0; |
0f113f3e | 3537 | } |
2e7dc7cd MC |
3538 | s->bbio = bbio; |
3539 | s->wbio = BIO_push(bbio, s->wbio); | |
46417569 MC |
3540 | |
3541 | return 1; | |
0f113f3e | 3542 | } |
413c4f45 | 3543 | |
4f43d0e7 | 3544 | void ssl_free_wbio_buffer(SSL *s) |
0f113f3e | 3545 | { |
62adbcee | 3546 | /* callers ensure s is never null */ |
0f113f3e MC |
3547 | if (s->bbio == NULL) |
3548 | return; | |
3549 | ||
2e7dc7cd MC |
3550 | s->wbio = BIO_pop(s->wbio); |
3551 | assert(s->wbio != NULL); | |
0f113f3e MC |
3552 | BIO_free(s->bbio); |
3553 | s->bbio = NULL; | |
3554 | } | |
3555 | ||
3556 | void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) | |
3557 | { | |
3558 | ctx->quiet_shutdown = mode; | |
3559 | } | |
58964a49 | 3560 | |
0821bcd4 | 3561 | int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) |
0f113f3e MC |
3562 | { |
3563 | return (ctx->quiet_shutdown); | |
3564 | } | |
58964a49 | 3565 | |
0f113f3e MC |
3566 | void SSL_set_quiet_shutdown(SSL *s, int mode) |
3567 | { | |
3568 | s->quiet_shutdown = mode; | |
3569 | } | |
58964a49 | 3570 | |
0821bcd4 | 3571 | int SSL_get_quiet_shutdown(const SSL *s) |
0f113f3e MC |
3572 | { |
3573 | return (s->quiet_shutdown); | |
3574 | } | |
58964a49 | 3575 | |
0f113f3e MC |
3576 | void SSL_set_shutdown(SSL *s, int mode) |
3577 | { | |
3578 | s->shutdown = mode; | |
3579 | } | |
58964a49 | 3580 | |
0821bcd4 | 3581 | int SSL_get_shutdown(const SSL *s) |
0f113f3e | 3582 | { |
6546e9b2 | 3583 | return s->shutdown; |
0f113f3e | 3584 | } |
58964a49 | 3585 | |
0821bcd4 | 3586 | int SSL_version(const SSL *s) |
0f113f3e | 3587 | { |
6546e9b2 AG |
3588 | return s->version; |
3589 | } | |
3590 | ||
3591 | int SSL_client_version(const SSL *s) | |
3592 | { | |
3593 | return s->client_version; | |
0f113f3e | 3594 | } |
58964a49 | 3595 | |
0821bcd4 | 3596 | SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) |
0f113f3e | 3597 | { |
6546e9b2 | 3598 | return ssl->ctx; |
0f113f3e MC |
3599 | } |
3600 | ||
3601 | SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx) | |
3602 | { | |
24a0d393 | 3603 | CERT *new_cert; |
0f113f3e MC |
3604 | if (ssl->ctx == ctx) |
3605 | return ssl->ctx; | |
0f113f3e | 3606 | if (ctx == NULL) |
222da979 | 3607 | ctx = ssl->session_ctx; |
24a0d393 KR |
3608 | new_cert = ssl_cert_dup(ctx->cert); |
3609 | if (new_cert == NULL) { | |
3610 | return NULL; | |
0f113f3e | 3611 | } |
24a0d393 KR |
3612 | ssl_cert_free(ssl->cert); |
3613 | ssl->cert = new_cert; | |
0f113f3e MC |
3614 | |
3615 | /* | |
3616 | * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH), | |
3617 | * so setter APIs must prevent invalid lengths from entering the system. | |
3618 | */ | |
3619 | OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx)); | |
3620 | ||
3621 | /* | |
3622 | * If the session ID context matches that of the parent SSL_CTX, | |
3623 | * inherit it from the new SSL_CTX as well. If however the context does | |
3624 | * not match (i.e., it was set per-ssl with SSL_set_session_id_context), | |
3625 | * leave it unchanged. | |
3626 | */ | |
3627 | if ((ssl->ctx != NULL) && | |
3628 | (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) && | |
3629 | (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) { | |
3630 | ssl->sid_ctx_length = ctx->sid_ctx_length; | |
3631 | memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx)); | |
3632 | } | |
3633 | ||
16203f7b | 3634 | SSL_CTX_up_ref(ctx); |
a230b26e | 3635 | SSL_CTX_free(ssl->ctx); /* decrement reference count */ |
0f113f3e MC |
3636 | ssl->ctx = ctx; |
3637 | ||
16203f7b | 3638 | return ssl->ctx; |
0f113f3e | 3639 | } |
ed3883d2 | 3640 | |
4f43d0e7 | 3641 | int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) |
0f113f3e MC |
3642 | { |
3643 | return (X509_STORE_set_default_paths(ctx->cert_store)); | |
3644 | } | |
58964a49 | 3645 | |
d84a7b20 MC |
3646 | int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx) |
3647 | { | |
3648 | X509_LOOKUP *lookup; | |
3649 | ||
3650 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir()); | |
3651 | if (lookup == NULL) | |
3652 | return 0; | |
3653 | X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT); | |
3654 | ||
3655 | /* Clear any errors if the default directory does not exist */ | |
3656 | ERR_clear_error(); | |
3657 | ||
3658 | return 1; | |
3659 | } | |
3660 | ||
3661 | int SSL_CTX_set_default_verify_file(SSL_CTX *ctx) | |
3662 | { | |
3663 | X509_LOOKUP *lookup; | |
3664 | ||
3665 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file()); | |
3666 | if (lookup == NULL) | |
3667 | return 0; | |
3668 | ||
3669 | X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT); | |
3670 | ||
3671 | /* Clear any errors if the default file does not exist */ | |
3672 | ERR_clear_error(); | |
3673 | ||
3674 | return 1; | |
3675 | } | |
3676 | ||
303c0028 | 3677 | int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, |
0f113f3e MC |
3678 | const char *CApath) |
3679 | { | |
3680 | return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); | |
3681 | } | |
58964a49 | 3682 | |
45d87a1f | 3683 | void SSL_set_info_callback(SSL *ssl, |
0f113f3e MC |
3684 | void (*cb) (const SSL *ssl, int type, int val)) |
3685 | { | |
3686 | ssl->info_callback = cb; | |
3687 | } | |
3688 | ||
3689 | /* | |
3690 | * One compiler (Diab DCC) doesn't like argument names in returned function | |
3691 | * pointer. | |
3692 | */ | |
3693 | void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ , | |
3694 | int /* type */ , | |
3695 | int /* val */ ) { | |
3696 | return ssl->info_callback; | |
3697 | } | |
58964a49 | 3698 | |
0f113f3e MC |
3699 | void SSL_set_verify_result(SSL *ssl, long arg) |
3700 | { | |
3701 | ssl->verify_result = arg; | |
3702 | } | |
58964a49 | 3703 | |
0821bcd4 | 3704 | long SSL_get_verify_result(const SSL *ssl) |
0f113f3e MC |
3705 | { |
3706 | return (ssl->verify_result); | |
3707 | } | |
3708 | ||
d9f1c639 | 3709 | size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 3710 | { |
6b8f5d0d | 3711 | if (outlen == 0) |
858618e7 NM |
3712 | return sizeof(ssl->s3->client_random); |
3713 | if (outlen > sizeof(ssl->s3->client_random)) | |
3714 | outlen = sizeof(ssl->s3->client_random); | |
3715 | memcpy(out, ssl->s3->client_random, outlen); | |
d9f1c639 | 3716 | return outlen; |
858618e7 NM |
3717 | } |
3718 | ||
d9f1c639 | 3719 | size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 3720 | { |
6b8f5d0d | 3721 | if (outlen == 0) |
858618e7 NM |
3722 | return sizeof(ssl->s3->server_random); |
3723 | if (outlen > sizeof(ssl->s3->server_random)) | |
3724 | outlen = sizeof(ssl->s3->server_random); | |
3725 | memcpy(out, ssl->s3->server_random, outlen); | |
d9f1c639 | 3726 | return outlen; |
858618e7 NM |
3727 | } |
3728 | ||
d9f1c639 | 3729 | size_t SSL_SESSION_get_master_key(const SSL_SESSION *session, |
a230b26e | 3730 | unsigned char *out, size_t outlen) |
858618e7 | 3731 | { |
d9f1c639 MC |
3732 | if (outlen == 0) |
3733 | return session->master_key_length; | |
8c1a5343 | 3734 | if (outlen > session->master_key_length) |
858618e7 NM |
3735 | outlen = session->master_key_length; |
3736 | memcpy(out, session->master_key, outlen); | |
d9f1c639 | 3737 | return outlen; |
858618e7 NM |
3738 | } |
3739 | ||
0f113f3e MC |
3740 | int SSL_set_ex_data(SSL *s, int idx, void *arg) |
3741 | { | |
3742 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | |
3743 | } | |
3744 | ||
3745 | void *SSL_get_ex_data(const SSL *s, int idx) | |
3746 | { | |
3747 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | |
3748 | } | |
3749 | ||
0f113f3e MC |
3750 | int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) |
3751 | { | |
3752 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | |
3753 | } | |
3754 | ||
3755 | void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) | |
3756 | { | |
3757 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | |
3758 | } | |
58964a49 | 3759 | |
0821bcd4 | 3760 | X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) |
0f113f3e MC |
3761 | { |
3762 | return (ctx->cert_store); | |
3763 | } | |
413c4f45 | 3764 | |
0f113f3e MC |
3765 | void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) |
3766 | { | |
222561fe | 3767 | X509_STORE_free(ctx->cert_store); |
0f113f3e MC |
3768 | ctx->cert_store = store; |
3769 | } | |
413c4f45 | 3770 | |
b50052db TS |
3771 | void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store) |
3772 | { | |
3773 | if (store != NULL) | |
3774 | X509_STORE_up_ref(store); | |
3775 | SSL_CTX_set_cert_store(ctx, store); | |
3776 | } | |
3777 | ||
0821bcd4 | 3778 | int SSL_want(const SSL *s) |
0f113f3e MC |
3779 | { |
3780 | return (s->rwstate); | |
3781 | } | |
413c4f45 | 3782 | |
0f113f3e | 3783 | /** |
4f43d0e7 BL |
3784 | * \brief Set the callback for generating temporary DH keys. |
3785 | * \param ctx the SSL context. | |
3786 | * \param dh the callback | |
3787 | */ | |
3788 | ||
bc36ee62 | 3789 | #ifndef OPENSSL_NO_DH |
0f113f3e MC |
3790 | void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, |
3791 | DH *(*dh) (SSL *ssl, int is_export, | |
3792 | int keylength)) | |
3793 | { | |
3794 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3795 | } | |
f8c3c05d | 3796 | |
0f113f3e MC |
3797 | void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export, |
3798 | int keylength)) | |
3799 | { | |
3800 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3801 | } | |
79df9d62 | 3802 | #endif |
15d21c2d | 3803 | |
ddac1974 NL |
3804 | #ifndef OPENSSL_NO_PSK |
3805 | int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) | |
0f113f3e MC |
3806 | { |
3807 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { | |
a230b26e | 3808 | SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); |
0f113f3e MC |
3809 | return 0; |
3810 | } | |
df6da24b | 3811 | OPENSSL_free(ctx->cert->psk_identity_hint); |
0f113f3e | 3812 | if (identity_hint != NULL) { |
7644a9ae | 3813 | ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 3814 | if (ctx->cert->psk_identity_hint == NULL) |
0f113f3e MC |
3815 | return 0; |
3816 | } else | |
df6da24b | 3817 | ctx->cert->psk_identity_hint = NULL; |
0f113f3e MC |
3818 | return 1; |
3819 | } | |
ddac1974 NL |
3820 | |
3821 | int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) | |
0f113f3e MC |
3822 | { |
3823 | if (s == NULL) | |
3824 | return 0; | |
3825 | ||
0f113f3e MC |
3826 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { |
3827 | SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); | |
3828 | return 0; | |
3829 | } | |
df6da24b | 3830 | OPENSSL_free(s->cert->psk_identity_hint); |
0f113f3e | 3831 | if (identity_hint != NULL) { |
7644a9ae | 3832 | s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 3833 | if (s->cert->psk_identity_hint == NULL) |
0f113f3e MC |
3834 | return 0; |
3835 | } else | |
df6da24b | 3836 | s->cert->psk_identity_hint = NULL; |
0f113f3e MC |
3837 | return 1; |
3838 | } | |
ddac1974 NL |
3839 | |
3840 | const char *SSL_get_psk_identity_hint(const SSL *s) | |
0f113f3e MC |
3841 | { |
3842 | if (s == NULL || s->session == NULL) | |
3843 | return NULL; | |
3844 | return (s->session->psk_identity_hint); | |
3845 | } | |
ddac1974 NL |
3846 | |
3847 | const char *SSL_get_psk_identity(const SSL *s) | |
0f113f3e MC |
3848 | { |
3849 | if (s == NULL || s->session == NULL) | |
3850 | return NULL; | |
3851 | return (s->session->psk_identity); | |
3852 | } | |
7806f3dd | 3853 | |
8cbfcc70 | 3854 | void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb) |
0f113f3e MC |
3855 | { |
3856 | s->psk_client_callback = cb; | |
3857 | } | |
7806f3dd | 3858 | |
8cbfcc70 | 3859 | void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb) |
0f113f3e MC |
3860 | { |
3861 | ctx->psk_client_callback = cb; | |
3862 | } | |
7806f3dd | 3863 | |
8cbfcc70 | 3864 | void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb) |
0f113f3e MC |
3865 | { |
3866 | s->psk_server_callback = cb; | |
3867 | } | |
7806f3dd | 3868 | |
8cbfcc70 | 3869 | void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb) |
0f113f3e MC |
3870 | { |
3871 | ctx->psk_server_callback = cb; | |
3872 | } | |
3873 | #endif | |
3874 | ||
3875 | void SSL_CTX_set_msg_callback(SSL_CTX *ctx, | |
3876 | void (*cb) (int write_p, int version, | |
3877 | int content_type, const void *buf, | |
3878 | size_t len, SSL *ssl, void *arg)) | |
3879 | { | |
3880 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
3881 | } | |
3882 | ||
3883 | void SSL_set_msg_callback(SSL *ssl, | |
3884 | void (*cb) (int write_p, int version, | |
3885 | int content_type, const void *buf, | |
3886 | size_t len, SSL *ssl, void *arg)) | |
3887 | { | |
3888 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
3889 | } | |
a661b653 | 3890 | |
7c2d4fee | 3891 | void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, |
0f113f3e MC |
3892 | int (*cb) (SSL *ssl, |
3893 | int | |
3894 | is_forward_secure)) | |
3895 | { | |
3896 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
3897 | (void (*)(void))cb); | |
3898 | } | |
3899 | ||
7c2d4fee | 3900 | void SSL_set_not_resumable_session_callback(SSL *ssl, |
0f113f3e MC |
3901 | int (*cb) (SSL *ssl, |
3902 | int is_forward_secure)) | |
3903 | { | |
3904 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
3905 | (void (*)(void))cb); | |
3906 | } | |
3907 | ||
3908 | /* | |
3909 | * Allocates new EVP_MD_CTX and sets pointer to it into given pointer | |
8483a003 | 3910 | * variable, freeing EVP_MD_CTX previously stored in that variable, if any. |
48722ff5 F |
3911 | * If EVP_MD pointer is passed, initializes ctx with this md. |
3912 | * Returns the newly allocated ctx; | |
8671b898 | 3913 | */ |
b948e2c5 | 3914 | |
0f113f3e | 3915 | EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md) |
b948e2c5 | 3916 | { |
0f113f3e | 3917 | ssl_clear_hash_ctx(hash); |
bfb0641f | 3918 | *hash = EVP_MD_CTX_new(); |
5f3d93e4 | 3919 | if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) { |
bfb0641f | 3920 | EVP_MD_CTX_free(*hash); |
5f3d93e4 MC |
3921 | *hash = NULL; |
3922 | return NULL; | |
3923 | } | |
0f113f3e | 3924 | return *hash; |
b948e2c5 | 3925 | } |
0f113f3e MC |
3926 | |
3927 | void ssl_clear_hash_ctx(EVP_MD_CTX **hash) | |
b948e2c5 DSH |
3928 | { |
3929 | ||
0d9824c1 | 3930 | EVP_MD_CTX_free(*hash); |
0f113f3e | 3931 | *hash = NULL; |
b948e2c5 | 3932 | } |
a661b653 | 3933 | |
48fbcbac | 3934 | /* Retrieve handshake hashes */ |
8c1a5343 MC |
3935 | int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen, |
3936 | size_t *hashlen) | |
48fbcbac | 3937 | { |
6e59a892 | 3938 | EVP_MD_CTX *ctx = NULL; |
28ba2541 | 3939 | EVP_MD_CTX *hdgst = s->s3->handshake_dgst; |
8c1a5343 MC |
3940 | int hashleni = EVP_MD_CTX_size(hdgst); |
3941 | int ret = 0; | |
3942 | ||
3943 | if (hashleni < 0 || (size_t)hashleni > outlen) | |
28ba2541 | 3944 | goto err; |
8c1a5343 | 3945 | |
bfb0641f | 3946 | ctx = EVP_MD_CTX_new(); |
8c1a5343 | 3947 | if (ctx == NULL) |
6e59a892 | 3948 | goto err; |
8c1a5343 | 3949 | |
6e59a892 RL |
3950 | if (!EVP_MD_CTX_copy_ex(ctx, hdgst) |
3951 | || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) | |
8c1a5343 MC |
3952 | goto err; |
3953 | ||
3954 | *hashlen = hashleni; | |
3955 | ||
3956 | ret = 1; | |
48fbcbac | 3957 | err: |
bfb0641f | 3958 | EVP_MD_CTX_free(ctx); |
48fbcbac DSH |
3959 | return ret; |
3960 | } | |
3961 | ||
b577fd0b | 3962 | int SSL_session_reused(SSL *s) |
0f113f3e MC |
3963 | { |
3964 | return s->hit; | |
3965 | } | |
08557cf2 | 3966 | |
87adf1fa | 3967 | int SSL_is_server(SSL *s) |
0f113f3e MC |
3968 | { |
3969 | return s->server; | |
3970 | } | |
87adf1fa | 3971 | |
47153c72 RS |
3972 | #if OPENSSL_API_COMPAT < 0x10100000L |
3973 | void SSL_set_debug(SSL *s, int debug) | |
3974 | { | |
3975 | /* Old function was do-nothing anyway... */ | |
3976 | (void)s; | |
3977 | (void)debug; | |
3978 | } | |
3979 | #endif | |
3980 | ||
b362ccab | 3981 | void SSL_set_security_level(SSL *s, int level) |
0f113f3e MC |
3982 | { |
3983 | s->cert->sec_level = level; | |
3984 | } | |
b362ccab DSH |
3985 | |
3986 | int SSL_get_security_level(const SSL *s) | |
0f113f3e MC |
3987 | { |
3988 | return s->cert->sec_level; | |
3989 | } | |
b362ccab | 3990 | |
0f113f3e | 3991 | void SSL_set_security_callback(SSL *s, |
a230b26e EK |
3992 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
3993 | int op, int bits, int nid, | |
3994 | void *other, void *ex)) | |
0f113f3e MC |
3995 | { |
3996 | s->cert->sec_cb = cb; | |
3997 | } | |
b362ccab | 3998 | |
a230b26e EK |
3999 | int (*SSL_get_security_callback(const SSL *s)) (const SSL *s, |
4000 | const SSL_CTX *ctx, int op, | |
4001 | int bits, int nid, void *other, | |
4002 | void *ex) { | |
0f113f3e MC |
4003 | return s->cert->sec_cb; |
4004 | } | |
b362ccab DSH |
4005 | |
4006 | void SSL_set0_security_ex_data(SSL *s, void *ex) | |
0f113f3e MC |
4007 | { |
4008 | s->cert->sec_ex = ex; | |
4009 | } | |
b362ccab DSH |
4010 | |
4011 | void *SSL_get0_security_ex_data(const SSL *s) | |
0f113f3e MC |
4012 | { |
4013 | return s->cert->sec_ex; | |
4014 | } | |
b362ccab DSH |
4015 | |
4016 | void SSL_CTX_set_security_level(SSL_CTX *ctx, int level) | |
0f113f3e MC |
4017 | { |
4018 | ctx->cert->sec_level = level; | |
4019 | } | |
b362ccab DSH |
4020 | |
4021 | int SSL_CTX_get_security_level(const SSL_CTX *ctx) | |
0f113f3e MC |
4022 | { |
4023 | return ctx->cert->sec_level; | |
4024 | } | |
b362ccab | 4025 | |
0f113f3e | 4026 | void SSL_CTX_set_security_callback(SSL_CTX *ctx, |
a230b26e EK |
4027 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
4028 | int op, int bits, int nid, | |
4029 | void *other, void *ex)) | |
0f113f3e MC |
4030 | { |
4031 | ctx->cert->sec_cb = cb; | |
4032 | } | |
b362ccab | 4033 | |
e4646a89 KR |
4034 | int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s, |
4035 | const SSL_CTX *ctx, | |
0f113f3e MC |
4036 | int op, int bits, |
4037 | int nid, | |
4038 | void *other, | |
4039 | void *ex) { | |
4040 | return ctx->cert->sec_cb; | |
4041 | } | |
b362ccab DSH |
4042 | |
4043 | void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex) | |
0f113f3e MC |
4044 | { |
4045 | ctx->cert->sec_ex = ex; | |
4046 | } | |
b362ccab DSH |
4047 | |
4048 | void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx) | |
0f113f3e MC |
4049 | { |
4050 | return ctx->cert->sec_ex; | |
4051 | } | |
b362ccab | 4052 | |
8106cb8b VD |
4053 | /* |
4054 | * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that | |
4055 | * can return unsigned long, instead of the generic long return value from the | |
4056 | * control interface. | |
4057 | */ | |
4058 | unsigned long SSL_CTX_get_options(const SSL_CTX *ctx) | |
4059 | { | |
4060 | return ctx->options; | |
4061 | } | |
a230b26e EK |
4062 | |
4063 | unsigned long SSL_get_options(const SSL *s) | |
8106cb8b VD |
4064 | { |
4065 | return s->options; | |
4066 | } | |
a230b26e | 4067 | |
8106cb8b VD |
4068 | unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op) |
4069 | { | |
4070 | return ctx->options |= op; | |
4071 | } | |
a230b26e | 4072 | |
8106cb8b VD |
4073 | unsigned long SSL_set_options(SSL *s, unsigned long op) |
4074 | { | |
4075 | return s->options |= op; | |
4076 | } | |
a230b26e | 4077 | |
8106cb8b VD |
4078 | unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op) |
4079 | { | |
4080 | return ctx->options &= ~op; | |
4081 | } | |
a230b26e | 4082 | |
8106cb8b VD |
4083 | unsigned long SSL_clear_options(SSL *s, unsigned long op) |
4084 | { | |
4085 | return s->options &= ~op; | |
4086 | } | |
4087 | ||
696178ed DSH |
4088 | STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s) |
4089 | { | |
4090 | return s->verified_chain; | |
4091 | } | |
4092 | ||
0f113f3e | 4093 | IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); |
ed29e82a RP |
4094 | |
4095 | #ifndef OPENSSL_NO_CT | |
4096 | ||
4097 | /* | |
4098 | * Moves SCTs from the |src| stack to the |dst| stack. | |
4099 | * The source of each SCT will be set to |origin|. | |
4100 | * If |dst| points to a NULL pointer, a new stack will be created and owned by | |
4101 | * the caller. | |
4102 | * Returns the number of SCTs moved, or a negative integer if an error occurs. | |
4103 | */ | |
a230b26e EK |
4104 | static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src, |
4105 | sct_source_t origin) | |
ed29e82a RP |
4106 | { |
4107 | int scts_moved = 0; | |
4108 | SCT *sct = NULL; | |
4109 | ||
4110 | if (*dst == NULL) { | |
4111 | *dst = sk_SCT_new_null(); | |
4112 | if (*dst == NULL) { | |
4113 | SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE); | |
4114 | goto err; | |
4115 | } | |
4116 | } | |
4117 | ||
4118 | while ((sct = sk_SCT_pop(src)) != NULL) { | |
4119 | if (SCT_set_source(sct, origin) != 1) | |
4120 | goto err; | |
4121 | ||
4122 | if (sk_SCT_push(*dst, sct) <= 0) | |
4123 | goto err; | |
4124 | scts_moved += 1; | |
4125 | } | |
4126 | ||
4127 | return scts_moved; | |
a230b26e | 4128 | err: |
ed29e82a | 4129 | if (sct != NULL) |
a230b26e | 4130 | sk_SCT_push(src, sct); /* Put the SCT back */ |
cc7113e8 | 4131 | return -1; |
ed29e82a RP |
4132 | } |
4133 | ||
4134 | /* | |
a230b26e | 4135 | * Look for data collected during ServerHello and parse if found. |
6b13bd1d | 4136 | * Returns the number of SCTs extracted. |
a230b26e | 4137 | */ |
ed29e82a RP |
4138 | static int ct_extract_tls_extension_scts(SSL *s) |
4139 | { | |
4140 | int scts_extracted = 0; | |
4141 | ||
aff8c126 RS |
4142 | if (s->ext.scts != NULL) { |
4143 | const unsigned char *p = s->ext.scts; | |
4144 | STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len); | |
ed29e82a RP |
4145 | |
4146 | scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION); | |
4147 | ||
4148 | SCT_LIST_free(scts); | |
4149 | } | |
4150 | ||
4151 | return scts_extracted; | |
4152 | } | |
4153 | ||
4154 | /* | |
4155 | * Checks for an OCSP response and then attempts to extract any SCTs found if it | |
4156 | * contains an SCT X509 extension. They will be stored in |s->scts|. | |
4157 | * Returns: | |
4158 | * - The number of SCTs extracted, assuming an OCSP response exists. | |
4159 | * - 0 if no OCSP response exists or it contains no SCTs. | |
4160 | * - A negative integer if an error occurs. | |
4161 | */ | |
4162 | static int ct_extract_ocsp_response_scts(SSL *s) | |
4163 | { | |
a230b26e | 4164 | # ifndef OPENSSL_NO_OCSP |
ed29e82a RP |
4165 | int scts_extracted = 0; |
4166 | const unsigned char *p; | |
4167 | OCSP_BASICRESP *br = NULL; | |
4168 | OCSP_RESPONSE *rsp = NULL; | |
4169 | STACK_OF(SCT) *scts = NULL; | |
4170 | int i; | |
4171 | ||
aff8c126 | 4172 | if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0) |
ed29e82a RP |
4173 | goto err; |
4174 | ||
aff8c126 RS |
4175 | p = s->ext.ocsp.resp; |
4176 | rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len); | |
ed29e82a RP |
4177 | if (rsp == NULL) |
4178 | goto err; | |
4179 | ||
4180 | br = OCSP_response_get1_basic(rsp); | |
4181 | if (br == NULL) | |
4182 | goto err; | |
4183 | ||
4184 | for (i = 0; i < OCSP_resp_count(br); ++i) { | |
4185 | OCSP_SINGLERESP *single = OCSP_resp_get0(br, i); | |
4186 | ||
4187 | if (single == NULL) | |
4188 | continue; | |
4189 | ||
a230b26e EK |
4190 | scts = |
4191 | OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL); | |
4192 | scts_extracted = | |
4193 | ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE); | |
ed29e82a RP |
4194 | if (scts_extracted < 0) |
4195 | goto err; | |
4196 | } | |
a230b26e | 4197 | err: |
ed29e82a RP |
4198 | SCT_LIST_free(scts); |
4199 | OCSP_BASICRESP_free(br); | |
4200 | OCSP_RESPONSE_free(rsp); | |
4201 | return scts_extracted; | |
a230b26e | 4202 | # else |
3e41ac35 MC |
4203 | /* Behave as if no OCSP response exists */ |
4204 | return 0; | |
a230b26e | 4205 | # endif |
ed29e82a RP |
4206 | } |
4207 | ||
4208 | /* | |
4209 | * Attempts to extract SCTs from the peer certificate. | |
4210 | * Return the number of SCTs extracted, or a negative integer if an error | |
4211 | * occurs. | |
4212 | */ | |
4213 | static int ct_extract_x509v3_extension_scts(SSL *s) | |
4214 | { | |
4215 | int scts_extracted = 0; | |
3f3c7d26 | 4216 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
ed29e82a RP |
4217 | |
4218 | if (cert != NULL) { | |
4219 | STACK_OF(SCT) *scts = | |
4220 | X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL); | |
4221 | ||
4222 | scts_extracted = | |
4223 | ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION); | |
4224 | ||
4225 | SCT_LIST_free(scts); | |
4226 | } | |
4227 | ||
4228 | return scts_extracted; | |
4229 | } | |
4230 | ||
4231 | /* | |
4232 | * Attempts to find all received SCTs by checking TLS extensions, the OCSP | |
4233 | * response (if it exists) and X509v3 extensions in the certificate. | |
4234 | * Returns NULL if an error occurs. | |
4235 | */ | |
4236 | const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s) | |
4237 | { | |
4238 | if (!s->scts_parsed) { | |
4239 | if (ct_extract_tls_extension_scts(s) < 0 || | |
4240 | ct_extract_ocsp_response_scts(s) < 0 || | |
4241 | ct_extract_x509v3_extension_scts(s) < 0) | |
4242 | goto err; | |
4243 | ||
4244 | s->scts_parsed = 1; | |
4245 | } | |
4246 | return s->scts; | |
a230b26e | 4247 | err: |
ed29e82a RP |
4248 | return NULL; |
4249 | } | |
4250 | ||
a230b26e | 4251 | static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx, |
43341433 | 4252 | const STACK_OF(SCT) *scts, void *unused_arg) |
ed29e82a | 4253 | { |
43341433 VD |
4254 | return 1; |
4255 | } | |
4256 | ||
a230b26e | 4257 | static int ct_strict(const CT_POLICY_EVAL_CTX * ctx, |
43341433 VD |
4258 | const STACK_OF(SCT) *scts, void *unused_arg) |
4259 | { | |
4260 | int count = scts != NULL ? sk_SCT_num(scts) : 0; | |
4261 | int i; | |
ed29e82a | 4262 | |
43341433 VD |
4263 | for (i = 0; i < count; ++i) { |
4264 | SCT *sct = sk_SCT_value(scts, i); | |
4265 | int status = SCT_get_validation_status(sct); | |
4266 | ||
4267 | if (status == SCT_VALIDATION_STATUS_VALID) | |
4268 | return 1; | |
4269 | } | |
4270 | SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS); | |
4271 | return 0; | |
4272 | } | |
4273 | ||
4274 | int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback, | |
4275 | void *arg) | |
4276 | { | |
ed29e82a RP |
4277 | /* |
4278 | * Since code exists that uses the custom extension handler for CT, look | |
4279 | * for this and throw an error if they have already registered to use CT. | |
4280 | */ | |
4281 | if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx, | |
a230b26e EK |
4282 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4283 | { | |
ed29e82a RP |
4284 | SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK, |
4285 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4286 | return 0; |
ed29e82a RP |
4287 | } |
4288 | ||
ed29e82a | 4289 | if (callback != NULL) { |
a230b26e EK |
4290 | /* |
4291 | * If we are validating CT, then we MUST accept SCTs served via OCSP | |
4292 | */ | |
ed29e82a | 4293 | if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp)) |
43341433 | 4294 | return 0; |
ed29e82a RP |
4295 | } |
4296 | ||
43341433 VD |
4297 | s->ct_validation_callback = callback; |
4298 | s->ct_validation_callback_arg = arg; | |
4299 | ||
4300 | return 1; | |
ed29e82a RP |
4301 | } |
4302 | ||
43341433 | 4303 | int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx, |
a230b26e | 4304 | ssl_ct_validation_cb callback, void *arg) |
ed29e82a | 4305 | { |
ed29e82a RP |
4306 | /* |
4307 | * Since code exists that uses the custom extension handler for CT, look for | |
4308 | * this and throw an error if they have already registered to use CT. | |
4309 | */ | |
4310 | if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx, | |
a230b26e EK |
4311 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4312 | { | |
ed29e82a RP |
4313 | SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK, |
4314 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4315 | return 0; |
ed29e82a RP |
4316 | } |
4317 | ||
4318 | ctx->ct_validation_callback = callback; | |
4319 | ctx->ct_validation_callback_arg = arg; | |
43341433 | 4320 | return 1; |
ed29e82a RP |
4321 | } |
4322 | ||
43341433 | 4323 | int SSL_ct_is_enabled(const SSL *s) |
ed29e82a | 4324 | { |
43341433 | 4325 | return s->ct_validation_callback != NULL; |
ed29e82a RP |
4326 | } |
4327 | ||
43341433 | 4328 | int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx) |
ed29e82a | 4329 | { |
43341433 | 4330 | return ctx->ct_validation_callback != NULL; |
ed29e82a RP |
4331 | } |
4332 | ||
4d482ee2 | 4333 | int ssl_validate_ct(SSL *s) |
ed29e82a RP |
4334 | { |
4335 | int ret = 0; | |
3f3c7d26 | 4336 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
43341433 | 4337 | X509 *issuer; |
b9aec69a | 4338 | SSL_DANE *dane = &s->dane; |
ed29e82a RP |
4339 | CT_POLICY_EVAL_CTX *ctx = NULL; |
4340 | const STACK_OF(SCT) *scts; | |
4341 | ||
43341433 VD |
4342 | /* |
4343 | * If no callback is set, the peer is anonymous, or its chain is invalid, | |
4344 | * skip SCT validation - just return success. Applications that continue | |
4345 | * handshakes without certificates, with unverified chains, or pinned leaf | |
4346 | * certificates are outside the scope of the WebPKI and CT. | |
4347 | * | |
4348 | * The above exclusions notwithstanding the vast majority of peers will | |
4349 | * have rather ordinary certificate chains validated by typical | |
4350 | * applications that perform certificate verification and therefore will | |
4351 | * process SCTs when enabled. | |
4352 | */ | |
4353 | if (s->ct_validation_callback == NULL || cert == NULL || | |
4354 | s->verify_result != X509_V_OK || | |
a230b26e | 4355 | s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1) |
ed29e82a RP |
4356 | return 1; |
4357 | ||
43341433 VD |
4358 | /* |
4359 | * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3) | |
4360 | * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2 | |
4361 | */ | |
4362 | if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) { | |
4363 | switch (dane->mtlsa->usage) { | |
4364 | case DANETLS_USAGE_DANE_TA: | |
4365 | case DANETLS_USAGE_DANE_EE: | |
4366 | return 1; | |
4367 | } | |
ed29e82a RP |
4368 | } |
4369 | ||
ed29e82a RP |
4370 | ctx = CT_POLICY_EVAL_CTX_new(); |
4371 | if (ctx == NULL) { | |
4372 | SSLerr(SSL_F_SSL_VALIDATE_CT, ERR_R_MALLOC_FAILURE); | |
4373 | goto end; | |
4374 | } | |
4375 | ||
43341433 | 4376 | issuer = sk_X509_value(s->verified_chain, 1); |
a1bb7708 RP |
4377 | CT_POLICY_EVAL_CTX_set1_cert(ctx, cert); |
4378 | CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer); | |
4379 | CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx, s->ctx->ctlog_store); | |
1fa9ffd9 | 4380 | CT_POLICY_EVAL_CTX_set_time(ctx, SSL_SESSION_get_time(SSL_get0_session(s))); |
ed29e82a RP |
4381 | |
4382 | scts = SSL_get0_peer_scts(s); | |
4383 | ||
43341433 VD |
4384 | /* |
4385 | * This function returns success (> 0) only when all the SCTs are valid, 0 | |
4386 | * when some are invalid, and < 0 on various internal errors (out of | |
4387 | * memory, etc.). Having some, or even all, invalid SCTs is not sufficient | |
4388 | * reason to abort the handshake, that decision is up to the callback. | |
4389 | * Therefore, we error out only in the unexpected case that the return | |
4390 | * value is negative. | |
4391 | * | |
4392 | * XXX: One might well argue that the return value of this function is an | |
f430ba31 | 4393 | * unfortunate design choice. Its job is only to determine the validation |
43341433 VD |
4394 | * status of each of the provided SCTs. So long as it correctly separates |
4395 | * the wheat from the chaff it should return success. Failure in this case | |
4396 | * ought to correspond to an inability to carry out its duties. | |
4397 | */ | |
4398 | if (SCT_LIST_validate(scts, ctx) < 0) { | |
ed29e82a RP |
4399 | SSLerr(SSL_F_SSL_VALIDATE_CT, SSL_R_SCT_VERIFICATION_FAILED); |
4400 | goto end; | |
4401 | } | |
4402 | ||
4403 | ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg); | |
4404 | if (ret < 0) | |
a230b26e | 4405 | ret = 0; /* This function returns 0 on failure */ |
ed29e82a | 4406 | |
a230b26e | 4407 | end: |
ed29e82a | 4408 | CT_POLICY_EVAL_CTX_free(ctx); |
f75b34c8 VD |
4409 | /* |
4410 | * With SSL_VERIFY_NONE the session may be cached and re-used despite a | |
4411 | * failure return code here. Also the application may wish the complete | |
4412 | * the handshake, and then disconnect cleanly at a higher layer, after | |
4413 | * checking the verification status of the completed connection. | |
4414 | * | |
4415 | * We therefore force a certificate verification failure which will be | |
4416 | * visible via SSL_get_verify_result() and cached as part of any resumed | |
4417 | * session. | |
4418 | * | |
4419 | * Note: the permissive callback is for information gathering only, always | |
4420 | * returns success, and does not affect verification status. Only the | |
4421 | * strict callback or a custom application-specified callback can trigger | |
4422 | * connection failure or record a verification error. | |
4423 | */ | |
4424 | if (ret <= 0) | |
4425 | s->verify_result = X509_V_ERR_NO_VALID_SCTS; | |
ed29e82a RP |
4426 | return ret; |
4427 | } | |
4428 | ||
43341433 VD |
4429 | int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode) |
4430 | { | |
4431 | switch (validation_mode) { | |
4432 | default: | |
4433 | SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
4434 | return 0; | |
4435 | case SSL_CT_VALIDATION_PERMISSIVE: | |
4436 | return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL); | |
4437 | case SSL_CT_VALIDATION_STRICT: | |
4438 | return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL); | |
4439 | } | |
4440 | } | |
4441 | ||
4442 | int SSL_enable_ct(SSL *s, int validation_mode) | |
4443 | { | |
4444 | switch (validation_mode) { | |
4445 | default: | |
4446 | SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
4447 | return 0; | |
4448 | case SSL_CT_VALIDATION_PERMISSIVE: | |
4449 | return SSL_set_ct_validation_callback(s, ct_permissive, NULL); | |
4450 | case SSL_CT_VALIDATION_STRICT: | |
4451 | return SSL_set_ct_validation_callback(s, ct_strict, NULL); | |
4452 | } | |
4453 | } | |
4454 | ||
ed29e82a RP |
4455 | int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx) |
4456 | { | |
328f36c5 | 4457 | return CTLOG_STORE_load_default_file(ctx->ctlog_store); |
ed29e82a RP |
4458 | } |
4459 | ||
4460 | int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path) | |
4461 | { | |
4462 | return CTLOG_STORE_load_file(ctx->ctlog_store, path); | |
4463 | } | |
4464 | ||
a230b26e | 4465 | void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs) |
8359b57f RP |
4466 | { |
4467 | CTLOG_STORE_free(ctx->ctlog_store); | |
4468 | ctx->ctlog_store = logs; | |
4469 | } | |
4470 | ||
4471 | const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx) | |
4472 | { | |
4473 | return ctx->ctlog_store; | |
4474 | } | |
4475 | ||
6b1bb98f BK |
4476 | #endif /* OPENSSL_NO_CT */ |
4477 | ||
4478 | void SSL_CTX_set_early_cb(SSL_CTX *c, SSL_early_cb_fn cb, void *arg) | |
4479 | { | |
4480 | c->early_cb = cb; | |
4481 | c->early_cb_arg = arg; | |
4482 | } | |
4483 | ||
4484 | int SSL_early_isv2(SSL *s) | |
4485 | { | |
4486 | if (s->clienthello == NULL) | |
4487 | return 0; | |
4488 | return s->clienthello->isv2; | |
4489 | } | |
4490 | ||
4491 | unsigned int SSL_early_get0_legacy_version(SSL *s) | |
4492 | { | |
4493 | if (s->clienthello == NULL) | |
4494 | return 0; | |
4495 | return s->clienthello->legacy_version; | |
4496 | } | |
4497 | ||
4498 | size_t SSL_early_get0_random(SSL *s, const unsigned char **out) | |
4499 | { | |
4500 | if (s->clienthello == NULL) | |
4501 | return 0; | |
4502 | if (out != NULL) | |
4503 | *out = s->clienthello->random; | |
4504 | return SSL3_RANDOM_SIZE; | |
4505 | } | |
4506 | ||
4507 | size_t SSL_early_get0_session_id(SSL *s, const unsigned char **out) | |
4508 | { | |
4509 | if (s->clienthello == NULL) | |
4510 | return 0; | |
4511 | if (out != NULL) | |
4512 | *out = s->clienthello->session_id; | |
4513 | return s->clienthello->session_id_len; | |
4514 | } | |
4515 | ||
4516 | size_t SSL_early_get0_ciphers(SSL *s, const unsigned char **out) | |
4517 | { | |
4518 | if (s->clienthello == NULL) | |
4519 | return 0; | |
4520 | if (out != NULL) | |
4521 | *out = PACKET_data(&s->clienthello->ciphersuites); | |
4522 | return PACKET_remaining(&s->clienthello->ciphersuites); | |
4523 | } | |
4524 | ||
4525 | size_t SSL_early_get0_compression_methods(SSL *s, const unsigned char **out) | |
4526 | { | |
4527 | if (s->clienthello == NULL) | |
4528 | return 0; | |
4529 | if (out != NULL) | |
4530 | *out = s->clienthello->compressions; | |
4531 | return s->clienthello->compressions_len; | |
4532 | } | |
4533 | ||
4534 | int SSL_early_get0_ext(SSL *s, unsigned int type, const unsigned char **out, | |
4535 | size_t *outlen) | |
4536 | { | |
4537 | size_t i; | |
4538 | RAW_EXTENSION *r; | |
4539 | ||
4540 | if (s->clienthello == NULL) | |
4541 | return 0; | |
4542 | for (i = 0; i < s->clienthello->pre_proc_exts_len; ++i) { | |
4543 | r = s->clienthello->pre_proc_exts + i; | |
4544 | if (r->present && r->type == type) { | |
4545 | if (out != NULL) | |
4546 | *out = PACKET_data(&r->data); | |
4547 | if (outlen != NULL) | |
4548 | *outlen = PACKET_remaining(&r->data); | |
4549 | return 1; | |
4550 | } | |
4551 | } | |
4552 | return 0; | |
4553 | } | |
2faa1b48 CB |
4554 | |
4555 | void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb) | |
4556 | { | |
4557 | ctx->keylog_callback = cb; | |
4558 | } | |
4559 | ||
4560 | SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx) | |
4561 | { | |
4562 | return ctx->keylog_callback; | |
4563 | } | |
4564 | ||
4565 | static int nss_keylog_int(const char *prefix, | |
4566 | SSL *ssl, | |
4567 | const uint8_t *parameter_1, | |
4568 | size_t parameter_1_len, | |
4569 | const uint8_t *parameter_2, | |
4570 | size_t parameter_2_len) | |
4571 | { | |
4572 | char *out = NULL; | |
4573 | char *cursor = NULL; | |
4574 | size_t out_len = 0; | |
4575 | size_t i; | |
4576 | size_t prefix_len; | |
4577 | ||
4578 | if (ssl->ctx->keylog_callback == NULL) return 1; | |
4579 | ||
4580 | /* | |
4581 | * Our output buffer will contain the following strings, rendered with | |
4582 | * space characters in between, terminated by a NULL character: first the | |
4583 | * prefix, then the first parameter, then the second parameter. The | |
4584 | * meaning of each parameter depends on the specific key material being | |
4585 | * logged. Note that the first and second parameters are encoded in | |
4586 | * hexadecimal, so we need a buffer that is twice their lengths. | |
4587 | */ | |
4588 | prefix_len = strlen(prefix); | |
4589 | out_len = prefix_len + (2*parameter_1_len) + (2*parameter_2_len) + 3; | |
4590 | if ((out = cursor = OPENSSL_malloc(out_len)) == NULL) { | |
4591 | SSLerr(SSL_F_NSS_KEYLOG_INT, ERR_R_MALLOC_FAILURE); | |
4592 | return 0; | |
4593 | } | |
4594 | ||
4595 | strcpy(cursor, prefix); | |
4596 | cursor += prefix_len; | |
4597 | *cursor++ = ' '; | |
4598 | ||
4599 | for (i = 0; i < parameter_1_len; i++) { | |
4600 | sprintf(cursor, "%02x", parameter_1[i]); | |
4601 | cursor += 2; | |
4602 | } | |
4603 | *cursor++ = ' '; | |
4604 | ||
4605 | for (i = 0; i < parameter_2_len; i++) { | |
4606 | sprintf(cursor, "%02x", parameter_2[i]); | |
4607 | cursor += 2; | |
4608 | } | |
4609 | *cursor = '\0'; | |
4610 | ||
4611 | ssl->ctx->keylog_callback(ssl, (const char *)out); | |
4612 | OPENSSL_free(out); | |
4613 | return 1; | |
4614 | ||
4615 | } | |
4616 | ||
4617 | int ssl_log_rsa_client_key_exchange(SSL *ssl, | |
4618 | const uint8_t *encrypted_premaster, | |
4619 | size_t encrypted_premaster_len, | |
4620 | const uint8_t *premaster, | |
4621 | size_t premaster_len) | |
4622 | { | |
4623 | if (encrypted_premaster_len < 8) { | |
4624 | SSLerr(SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR); | |
4625 | return 0; | |
4626 | } | |
4627 | ||
f0deb4d3 | 4628 | /* We only want the first 8 bytes of the encrypted premaster as a tag. */ |
2faa1b48 CB |
4629 | return nss_keylog_int("RSA", |
4630 | ssl, | |
4631 | encrypted_premaster, | |
f0deb4d3 | 4632 | 8, |
2faa1b48 CB |
4633 | premaster, |
4634 | premaster_len); | |
4635 | } | |
4636 | ||
2c7bd692 CB |
4637 | int ssl_log_secret(SSL *ssl, |
4638 | const char *label, | |
4639 | const uint8_t *secret, | |
4640 | size_t secret_len) | |
2faa1b48 | 4641 | { |
2c7bd692 | 4642 | return nss_keylog_int(label, |
2faa1b48 | 4643 | ssl, |
2c7bd692 CB |
4644 | ssl->s3->client_random, |
4645 | SSL3_RANDOM_SIZE, | |
4646 | secret, | |
4647 | secret_len); | |
2faa1b48 CB |
4648 | } |
4649 | ||
ccb8e6e0 BK |
4650 | #define SSLV2_CIPHER_LEN 3 |
4651 | ||
90134d98 BK |
4652 | int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites, int sslv2format, |
4653 | int *al) | |
ccb8e6e0 | 4654 | { |
ccb8e6e0 | 4655 | int n; |
ccb8e6e0 BK |
4656 | |
4657 | n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN; | |
4658 | ||
4659 | if (PACKET_remaining(cipher_suites) == 0) { | |
90134d98 | 4660 | SSLerr(SSL_F_SSL_CACHE_CIPHERLIST, SSL_R_NO_CIPHERS_SPECIFIED); |
ccb8e6e0 | 4661 | *al = SSL_AD_ILLEGAL_PARAMETER; |
90134d98 | 4662 | return 0; |
ccb8e6e0 BK |
4663 | } |
4664 | ||
4665 | if (PACKET_remaining(cipher_suites) % n != 0) { | |
90134d98 | 4666 | SSLerr(SSL_F_SSL_CACHE_CIPHERLIST, |
ccb8e6e0 BK |
4667 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); |
4668 | *al = SSL_AD_DECODE_ERROR; | |
90134d98 | 4669 | return 0; |
ccb8e6e0 BK |
4670 | } |
4671 | ||
4672 | OPENSSL_free(s->s3->tmp.ciphers_raw); | |
4673 | s->s3->tmp.ciphers_raw = NULL; | |
4674 | s->s3->tmp.ciphers_rawlen = 0; | |
4675 | ||
4676 | if (sslv2format) { | |
4677 | size_t numciphers = PACKET_remaining(cipher_suites) / n; | |
4678 | PACKET sslv2ciphers = *cipher_suites; | |
4679 | unsigned int leadbyte; | |
4680 | unsigned char *raw; | |
4681 | ||
4682 | /* | |
4683 | * We store the raw ciphers list in SSLv3+ format so we need to do some | |
4684 | * preprocessing to convert the list first. If there are any SSLv2 only | |
4685 | * ciphersuites with a non-zero leading byte then we are going to | |
4686 | * slightly over allocate because we won't store those. But that isn't a | |
4687 | * problem. | |
4688 | */ | |
4689 | raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN); | |
4690 | s->s3->tmp.ciphers_raw = raw; | |
4691 | if (raw == NULL) { | |
4692 | *al = SSL_AD_INTERNAL_ERROR; | |
4693 | goto err; | |
4694 | } | |
4695 | for (s->s3->tmp.ciphers_rawlen = 0; | |
4696 | PACKET_remaining(&sslv2ciphers) > 0; | |
4697 | raw += TLS_CIPHER_LEN) { | |
4698 | if (!PACKET_get_1(&sslv2ciphers, &leadbyte) | |
4699 | || (leadbyte == 0 | |
4700 | && !PACKET_copy_bytes(&sslv2ciphers, raw, | |
4701 | TLS_CIPHER_LEN)) | |
4702 | || (leadbyte != 0 | |
4703 | && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) { | |
4704 | *al = SSL_AD_INTERNAL_ERROR; | |
4705 | OPENSSL_free(s->s3->tmp.ciphers_raw); | |
4706 | s->s3->tmp.ciphers_raw = NULL; | |
4707 | s->s3->tmp.ciphers_rawlen = 0; | |
4708 | goto err; | |
4709 | } | |
4710 | if (leadbyte == 0) | |
4711 | s->s3->tmp.ciphers_rawlen += TLS_CIPHER_LEN; | |
4712 | } | |
4713 | } else if (!PACKET_memdup(cipher_suites, &s->s3->tmp.ciphers_raw, | |
4714 | &s->s3->tmp.ciphers_rawlen)) { | |
4715 | *al = SSL_AD_INTERNAL_ERROR; | |
4716 | goto err; | |
4717 | } | |
90134d98 BK |
4718 | return 1; |
4719 | err: | |
4720 | return 0; | |
4721 | } | |
4722 | ||
4723 | int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len, | |
4724 | int isv2format, STACK_OF(SSL_CIPHER) **sk, | |
4725 | STACK_OF(SSL_CIPHER) **scsvs) | |
4726 | { | |
4727 | int alert; | |
4728 | PACKET pkt; | |
4729 | ||
4730 | if (!PACKET_buf_init(&pkt, bytes, len)) | |
4731 | return 0; | |
4732 | return bytes_to_cipher_list(s, &pkt, sk, scsvs, isv2format, &alert); | |
4733 | } | |
4734 | ||
4735 | int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites, | |
4736 | STACK_OF(SSL_CIPHER) **skp, | |
4737 | STACK_OF(SSL_CIPHER) **scsvs_out, | |
4738 | int sslv2format, int *al) | |
4739 | { | |
4740 | const SSL_CIPHER *c; | |
4741 | STACK_OF(SSL_CIPHER) *sk = NULL; | |
4742 | STACK_OF(SSL_CIPHER) *scsvs = NULL; | |
4743 | int n; | |
4744 | /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */ | |
4745 | unsigned char cipher[SSLV2_CIPHER_LEN]; | |
4746 | ||
4747 | n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN; | |
4748 | ||
4749 | if (PACKET_remaining(cipher_suites) == 0) { | |
4750 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_NO_CIPHERS_SPECIFIED); | |
4751 | *al = SSL_AD_ILLEGAL_PARAMETER; | |
4752 | return 0; | |
4753 | } | |
4754 | ||
4755 | if (PACKET_remaining(cipher_suites) % n != 0) { | |
4756 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, | |
4757 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); | |
4758 | *al = SSL_AD_DECODE_ERROR; | |
4759 | return 0; | |
4760 | } | |
4761 | ||
4762 | sk = sk_SSL_CIPHER_new_null(); | |
4763 | scsvs = sk_SSL_CIPHER_new_null(); | |
4764 | if (sk == NULL || scsvs == NULL) { | |
4765 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
4766 | *al = SSL_AD_INTERNAL_ERROR; | |
4767 | goto err; | |
4768 | } | |
ccb8e6e0 BK |
4769 | |
4770 | while (PACKET_copy_bytes(cipher_suites, cipher, n)) { | |
4771 | /* | |
4772 | * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the | |
4773 | * first byte set to zero, while true SSLv2 ciphers have a non-zero | |
4774 | * first byte. We don't support any true SSLv2 ciphers, so skip them. | |
4775 | */ | |
4776 | if (sslv2format && cipher[0] != '\0') | |
4777 | continue; | |
4778 | ||
ccb8e6e0 BK |
4779 | /* For SSLv2-compat, ignore leading 0-byte. */ |
4780 | c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1); | |
4781 | if (c != NULL) { | |
90134d98 BK |
4782 | if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) || |
4783 | (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) { | |
ccb8e6e0 BK |
4784 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); |
4785 | *al = SSL_AD_INTERNAL_ERROR; | |
4786 | goto err; | |
4787 | } | |
4788 | } | |
4789 | } | |
4790 | if (PACKET_remaining(cipher_suites) > 0) { | |
4791 | *al = SSL_AD_INTERNAL_ERROR; | |
4792 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_INTERNAL_ERROR); | |
4793 | goto err; | |
4794 | } | |
4795 | ||
90134d98 BK |
4796 | if (skp != NULL) |
4797 | *skp = sk; | |
4798 | else | |
4799 | sk_SSL_CIPHER_free(sk); | |
4800 | if (scsvs_out != NULL) | |
4801 | *scsvs_out = scsvs; | |
4802 | else | |
4803 | sk_SSL_CIPHER_free(scsvs); | |
4804 | return 1; | |
ccb8e6e0 BK |
4805 | err: |
4806 | sk_SSL_CIPHER_free(sk); | |
90134d98 BK |
4807 | sk_SSL_CIPHER_free(scsvs); |
4808 | return 0; | |
ccb8e6e0 | 4809 | } |
3fc8d856 MC |
4810 | |
4811 | int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data) | |
4812 | { | |
4813 | ctx->max_early_data = max_early_data; | |
4814 | ||
4815 | return 1; | |
4816 | } | |
4817 | ||
46dcb945 | 4818 | uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx) |
3fc8d856 MC |
4819 | { |
4820 | return ctx->max_early_data; | |
4821 | } | |
4822 | ||
4823 | int SSL_set_max_early_data(SSL *s, uint32_t max_early_data) | |
4824 | { | |
4825 | s->max_early_data = max_early_data; | |
4826 | ||
4827 | return 1; | |
4828 | } | |
4829 | ||
46dcb945 | 4830 | uint32_t SSL_get_max_early_data(const SSL_CTX *s) |
3fc8d856 MC |
4831 | { |
4832 | return s->max_early_data; | |
4833 | } |