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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 | |
d02b48c6 | 42 | #include <stdio.h> |
7b63c0fa | 43 | #include "ssl_locl.h" |
ec577822 BM |
44 | #include <openssl/objects.h> |
45 | #include <openssl/lhash.h> | |
bb7cd4e3 | 46 | #include <openssl/x509v3.h> |
6434abbf | 47 | #include <openssl/rand.h> |
67c8e7f4 | 48 | #include <openssl/ocsp.h> |
3c27208f RS |
49 | #include <openssl/dh.h> |
50 | #include <openssl/engine.h> | |
07bbc92c | 51 | #include <openssl/async.h> |
3c27208f | 52 | #include <openssl/ct.h> |
0f113f3e | 53 | |
df2ee0e2 | 54 | const char SSL_version_str[] = OPENSSL_VERSION_TEXT; |
0f113f3e MC |
55 | |
56 | SSL3_ENC_METHOD ssl3_undef_enc_method = { | |
57 | /* | |
58 | * evil casts, but these functions are only called if there's a library | |
59 | * bug | |
60 | */ | |
72716e79 | 61 | (int (*)(SSL *, SSL3_RECORD *, size_t, int))ssl_undefined_function, |
d102d9df | 62 | (int (*)(SSL *, SSL3_RECORD *, unsigned char *, int))ssl_undefined_function, |
0f113f3e | 63 | ssl_undefined_function, |
8c1a5343 | 64 | (int (*)(SSL *, unsigned char *, unsigned char *, size_t, size_t *)) |
0f113f3e MC |
65 | ssl_undefined_function, |
66 | (int (*)(SSL *, int))ssl_undefined_function, | |
6db6bc5a | 67 | (size_t (*)(SSL *, const char *, size_t, unsigned char *)) |
0f113f3e | 68 | ssl_undefined_function, |
0f113f3e MC |
69 | NULL, /* client_finished_label */ |
70 | 0, /* client_finished_label_len */ | |
71 | NULL, /* server_finished_label */ | |
72 | 0, /* server_finished_label_len */ | |
73 | (int (*)(int))ssl_undefined_function, | |
74 | (int (*)(SSL *, unsigned char *, size_t, const char *, | |
75 | size_t, const unsigned char *, size_t, | |
76 | int use_context))ssl_undefined_function, | |
77 | }; | |
d02b48c6 | 78 | |
07bbc92c MC |
79 | struct ssl_async_args { |
80 | SSL *s; | |
81 | void *buf; | |
348240c6 | 82 | size_t num; |
a230b26e | 83 | enum { READFUNC, WRITEFUNC, OTHERFUNC } type; |
add2f5ca | 84 | union { |
eda75751 | 85 | int (*func_read) (SSL *, void *, size_t, size_t *); |
7ee8627f | 86 | int (*func_write) (SSL *, const void *, size_t, size_t *); |
a230b26e | 87 | int (*func_other) (SSL *); |
add2f5ca | 88 | } f; |
07bbc92c MC |
89 | }; |
90 | ||
919ba009 VD |
91 | static const struct { |
92 | uint8_t mtype; | |
93 | uint8_t ord; | |
a230b26e | 94 | int nid; |
919ba009 | 95 | } dane_mds[] = { |
a230b26e EK |
96 | { |
97 | DANETLS_MATCHING_FULL, 0, NID_undef | |
98 | }, | |
99 | { | |
100 | DANETLS_MATCHING_2256, 1, NID_sha256 | |
101 | }, | |
102 | { | |
103 | DANETLS_MATCHING_2512, 2, NID_sha512 | |
104 | }, | |
919ba009 VD |
105 | }; |
106 | ||
107 | static int dane_ctx_enable(struct dane_ctx_st *dctx) | |
108 | { | |
109 | const EVP_MD **mdevp; | |
110 | uint8_t *mdord; | |
111 | uint8_t mdmax = DANETLS_MATCHING_LAST; | |
a230b26e | 112 | int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */ |
919ba009 VD |
113 | size_t i; |
114 | ||
5ae4ceb9 VD |
115 | if (dctx->mdevp != NULL) |
116 | return 1; | |
117 | ||
919ba009 VD |
118 | mdevp = OPENSSL_zalloc(n * sizeof(*mdevp)); |
119 | mdord = OPENSSL_zalloc(n * sizeof(*mdord)); | |
120 | ||
121 | if (mdord == NULL || mdevp == NULL) { | |
b3bd3d5a | 122 | OPENSSL_free(mdord); |
919ba009 VD |
123 | OPENSSL_free(mdevp); |
124 | SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE); | |
125 | return 0; | |
126 | } | |
127 | ||
128 | /* Install default entries */ | |
129 | for (i = 0; i < OSSL_NELEM(dane_mds); ++i) { | |
130 | const EVP_MD *md; | |
131 | ||
132 | if (dane_mds[i].nid == NID_undef || | |
133 | (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL) | |
134 | continue; | |
135 | mdevp[dane_mds[i].mtype] = md; | |
136 | mdord[dane_mds[i].mtype] = dane_mds[i].ord; | |
137 | } | |
138 | ||
139 | dctx->mdevp = mdevp; | |
140 | dctx->mdord = mdord; | |
141 | dctx->mdmax = mdmax; | |
142 | ||
143 | return 1; | |
144 | } | |
145 | ||
146 | static void dane_ctx_final(struct dane_ctx_st *dctx) | |
147 | { | |
148 | OPENSSL_free(dctx->mdevp); | |
149 | dctx->mdevp = NULL; | |
150 | ||
151 | OPENSSL_free(dctx->mdord); | |
152 | dctx->mdord = NULL; | |
153 | dctx->mdmax = 0; | |
154 | } | |
155 | ||
156 | static void tlsa_free(danetls_record *t) | |
157 | { | |
158 | if (t == NULL) | |
159 | return; | |
160 | OPENSSL_free(t->data); | |
161 | EVP_PKEY_free(t->spki); | |
162 | OPENSSL_free(t); | |
163 | } | |
164 | ||
b9aec69a | 165 | static void dane_final(SSL_DANE *dane) |
919ba009 VD |
166 | { |
167 | sk_danetls_record_pop_free(dane->trecs, tlsa_free); | |
168 | dane->trecs = NULL; | |
169 | ||
170 | sk_X509_pop_free(dane->certs, X509_free); | |
171 | dane->certs = NULL; | |
172 | ||
173 | X509_free(dane->mcert); | |
174 | dane->mcert = NULL; | |
175 | dane->mtlsa = NULL; | |
176 | dane->mdpth = -1; | |
177 | dane->pdpth = -1; | |
178 | } | |
179 | ||
180 | /* | |
181 | * dane_copy - Copy dane configuration, sans verification state. | |
182 | */ | |
183 | static int ssl_dane_dup(SSL *to, SSL *from) | |
184 | { | |
185 | int num; | |
186 | int i; | |
187 | ||
188 | if (!DANETLS_ENABLED(&from->dane)) | |
189 | return 1; | |
190 | ||
191 | dane_final(&to->dane); | |
5ae4ceb9 | 192 | to->dane.flags = from->dane.flags; |
9f6b22b8 VD |
193 | to->dane.dctx = &to->ctx->dane; |
194 | to->dane.trecs = sk_danetls_record_new_null(); | |
195 | ||
196 | if (to->dane.trecs == NULL) { | |
197 | SSLerr(SSL_F_SSL_DANE_DUP, ERR_R_MALLOC_FAILURE); | |
198 | return 0; | |
199 | } | |
919ba009 | 200 | |
a230b26e | 201 | num = sk_danetls_record_num(from->dane.trecs); |
919ba009 VD |
202 | for (i = 0; i < num; ++i) { |
203 | danetls_record *t = sk_danetls_record_value(from->dane.trecs, i); | |
9f6b22b8 | 204 | |
919ba009 VD |
205 | if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype, |
206 | t->data, t->dlen) <= 0) | |
207 | return 0; | |
208 | } | |
209 | return 1; | |
210 | } | |
211 | ||
a230b26e EK |
212 | static int dane_mtype_set(struct dane_ctx_st *dctx, |
213 | const EVP_MD *md, uint8_t mtype, uint8_t ord) | |
919ba009 VD |
214 | { |
215 | int i; | |
216 | ||
217 | if (mtype == DANETLS_MATCHING_FULL && md != NULL) { | |
a230b26e | 218 | SSLerr(SSL_F_DANE_MTYPE_SET, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL); |
919ba009 VD |
219 | return 0; |
220 | } | |
221 | ||
222 | if (mtype > dctx->mdmax) { | |
223 | const EVP_MD **mdevp; | |
224 | uint8_t *mdord; | |
a230b26e | 225 | int n = ((int)mtype) + 1; |
919ba009 VD |
226 | |
227 | mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp)); | |
228 | if (mdevp == NULL) { | |
229 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
230 | return -1; | |
231 | } | |
232 | dctx->mdevp = mdevp; | |
233 | ||
234 | mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord)); | |
235 | if (mdord == NULL) { | |
236 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
237 | return -1; | |
238 | } | |
239 | dctx->mdord = mdord; | |
240 | ||
241 | /* Zero-fill any gaps */ | |
a230b26e | 242 | for (i = dctx->mdmax + 1; i < mtype; ++i) { |
919ba009 VD |
243 | mdevp[i] = NULL; |
244 | mdord[i] = 0; | |
245 | } | |
246 | ||
247 | dctx->mdmax = mtype; | |
248 | } | |
249 | ||
250 | dctx->mdevp[mtype] = md; | |
251 | /* Coerce ordinal of disabled matching types to 0 */ | |
252 | dctx->mdord[mtype] = (md == NULL) ? 0 : ord; | |
253 | ||
254 | return 1; | |
255 | } | |
256 | ||
b9aec69a | 257 | static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype) |
919ba009 VD |
258 | { |
259 | if (mtype > dane->dctx->mdmax) | |
260 | return NULL; | |
261 | return dane->dctx->mdevp[mtype]; | |
262 | } | |
263 | ||
a230b26e EK |
264 | static int dane_tlsa_add(SSL_DANE *dane, |
265 | uint8_t usage, | |
266 | uint8_t selector, | |
267 | uint8_t mtype, unsigned char *data, size_t dlen) | |
919ba009 VD |
268 | { |
269 | danetls_record *t; | |
270 | const EVP_MD *md = NULL; | |
271 | int ilen = (int)dlen; | |
272 | int i; | |
9f6b22b8 | 273 | int num; |
919ba009 VD |
274 | |
275 | if (dane->trecs == NULL) { | |
276 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED); | |
277 | return -1; | |
278 | } | |
279 | ||
280 | if (ilen < 0 || dlen != (size_t)ilen) { | |
281 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH); | |
282 | return 0; | |
283 | } | |
284 | ||
285 | if (usage > DANETLS_USAGE_LAST) { | |
286 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE); | |
287 | return 0; | |
288 | } | |
289 | ||
290 | if (selector > DANETLS_SELECTOR_LAST) { | |
291 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR); | |
292 | return 0; | |
293 | } | |
294 | ||
295 | if (mtype != DANETLS_MATCHING_FULL) { | |
296 | md = tlsa_md_get(dane, mtype); | |
297 | if (md == NULL) { | |
298 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE); | |
299 | return 0; | |
300 | } | |
301 | } | |
302 | ||
303 | if (md != NULL && dlen != (size_t)EVP_MD_size(md)) { | |
304 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH); | |
305 | return 0; | |
306 | } | |
307 | if (!data) { | |
308 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA); | |
309 | return 0; | |
310 | } | |
311 | ||
312 | if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) { | |
313 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
314 | return -1; | |
315 | } | |
316 | ||
317 | t->usage = usage; | |
318 | t->selector = selector; | |
319 | t->mtype = mtype; | |
348240c6 | 320 | t->data = OPENSSL_malloc(dlen); |
919ba009 VD |
321 | if (t->data == NULL) { |
322 | tlsa_free(t); | |
323 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
324 | return -1; | |
325 | } | |
348240c6 MC |
326 | memcpy(t->data, data, dlen); |
327 | t->dlen = dlen; | |
919ba009 VD |
328 | |
329 | /* Validate and cache full certificate or public key */ | |
330 | if (mtype == DANETLS_MATCHING_FULL) { | |
331 | const unsigned char *p = data; | |
332 | X509 *cert = NULL; | |
333 | EVP_PKEY *pkey = NULL; | |
334 | ||
335 | switch (selector) { | |
336 | case DANETLS_SELECTOR_CERT: | |
348240c6 | 337 | if (!d2i_X509(&cert, &p, ilen) || p < data || |
919ba009 VD |
338 | dlen != (size_t)(p - data)) { |
339 | tlsa_free(t); | |
340 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
341 | return 0; | |
342 | } | |
343 | if (X509_get0_pubkey(cert) == NULL) { | |
344 | tlsa_free(t); | |
345 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
346 | return 0; | |
347 | } | |
348 | ||
349 | if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) { | |
350 | X509_free(cert); | |
351 | break; | |
352 | } | |
353 | ||
354 | /* | |
355 | * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA | |
356 | * records that contain full certificates of trust-anchors that are | |
357 | * not present in the wire chain. For usage PKIX-TA(0), we augment | |
358 | * the chain with untrusted Full(0) certificates from DNS, in case | |
359 | * they are missing from the chain. | |
360 | */ | |
361 | if ((dane->certs == NULL && | |
362 | (dane->certs = sk_X509_new_null()) == NULL) || | |
363 | !sk_X509_push(dane->certs, cert)) { | |
364 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
365 | X509_free(cert); | |
366 | tlsa_free(t); | |
367 | return -1; | |
368 | } | |
369 | break; | |
370 | ||
371 | case DANETLS_SELECTOR_SPKI: | |
348240c6 | 372 | if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data || |
919ba009 VD |
373 | dlen != (size_t)(p - data)) { |
374 | tlsa_free(t); | |
375 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY); | |
376 | return 0; | |
377 | } | |
378 | ||
379 | /* | |
380 | * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA | |
381 | * records that contain full bare keys of trust-anchors that are | |
382 | * not present in the wire chain. | |
383 | */ | |
384 | if (usage == DANETLS_USAGE_DANE_TA) | |
385 | t->spki = pkey; | |
386 | else | |
387 | EVP_PKEY_free(pkey); | |
388 | break; | |
389 | } | |
390 | } | |
391 | ||
392 | /*- | |
393 | * Find the right insertion point for the new record. | |
394 | * | |
395 | * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that | |
396 | * they can be processed first, as they require no chain building, and no | |
397 | * expiration or hostname checks. Because DANE-EE(3) is numerically | |
398 | * largest, this is accomplished via descending sort by "usage". | |
399 | * | |
400 | * We also sort in descending order by matching ordinal to simplify | |
401 | * the implementation of digest agility in the verification code. | |
402 | * | |
403 | * The choice of order for the selector is not significant, so we | |
404 | * use the same descending order for consistency. | |
405 | */ | |
9f6b22b8 VD |
406 | num = sk_danetls_record_num(dane->trecs); |
407 | for (i = 0; i < num; ++i) { | |
919ba009 | 408 | danetls_record *rec = sk_danetls_record_value(dane->trecs, i); |
9f6b22b8 | 409 | |
919ba009 VD |
410 | if (rec->usage > usage) |
411 | continue; | |
412 | if (rec->usage < usage) | |
413 | break; | |
414 | if (rec->selector > selector) | |
415 | continue; | |
416 | if (rec->selector < selector) | |
417 | break; | |
418 | if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype]) | |
419 | continue; | |
420 | break; | |
421 | } | |
422 | ||
423 | if (!sk_danetls_record_insert(dane->trecs, t, i)) { | |
424 | tlsa_free(t); | |
425 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
426 | return -1; | |
427 | } | |
428 | dane->umask |= DANETLS_USAGE_BIT(usage); | |
429 | ||
430 | return 1; | |
431 | } | |
432 | ||
d31fb0b5 RS |
433 | static void clear_ciphers(SSL *s) |
434 | { | |
435 | /* clear the current cipher */ | |
436 | ssl_clear_cipher_ctx(s); | |
437 | ssl_clear_hash_ctx(&s->read_hash); | |
438 | ssl_clear_hash_ctx(&s->write_hash); | |
439 | } | |
440 | ||
4f43d0e7 | 441 | int SSL_clear(SSL *s) |
0f113f3e | 442 | { |
0f113f3e MC |
443 | if (s->method == NULL) { |
444 | SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED); | |
a89325e4 | 445 | return 0; |
0f113f3e | 446 | } |
d02b48c6 | 447 | |
0f113f3e MC |
448 | if (ssl_clear_bad_session(s)) { |
449 | SSL_SESSION_free(s->session); | |
450 | s->session = NULL; | |
451 | } | |
d62bfb39 | 452 | |
0f113f3e MC |
453 | s->error = 0; |
454 | s->hit = 0; | |
455 | s->shutdown = 0; | |
d02b48c6 | 456 | |
0f113f3e MC |
457 | if (s->renegotiate) { |
458 | SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR); | |
459 | return 0; | |
460 | } | |
d02b48c6 | 461 | |
fe3a3291 | 462 | ossl_statem_clear(s); |
413c4f45 | 463 | |
0f113f3e MC |
464 | s->version = s->method->version; |
465 | s->client_version = s->version; | |
466 | s->rwstate = SSL_NOTHING; | |
d02b48c6 | 467 | |
25aaa98a RS |
468 | BUF_MEM_free(s->init_buf); |
469 | s->init_buf = NULL; | |
d31fb0b5 | 470 | clear_ciphers(s); |
0f113f3e | 471 | s->first_packet = 0; |
d02b48c6 | 472 | |
44c04a2e MC |
473 | s->key_update = SSL_KEY_UPDATE_NONE; |
474 | ||
919ba009 VD |
475 | /* Reset DANE verification result state */ |
476 | s->dane.mdpth = -1; | |
477 | s->dane.pdpth = -1; | |
478 | X509_free(s->dane.mcert); | |
479 | s->dane.mcert = NULL; | |
480 | s->dane.mtlsa = NULL; | |
481 | ||
482 | /* Clear the verification result peername */ | |
483 | X509_VERIFY_PARAM_move_peername(s->param, NULL); | |
484 | ||
0f113f3e MC |
485 | /* |
486 | * Check to see if we were changed into a different method, if so, revert | |
487 | * back if we are not doing session-id reuse. | |
488 | */ | |
024f543c | 489 | if (!ossl_statem_get_in_handshake(s) && (s->session == NULL) |
0f113f3e MC |
490 | && (s->method != s->ctx->method)) { |
491 | s->method->ssl_free(s); | |
492 | s->method = s->ctx->method; | |
493 | if (!s->method->ssl_new(s)) | |
a89325e4 | 494 | return 0; |
b77f3ed1 MC |
495 | } else { |
496 | if (!s->method->ssl_clear(s)) | |
497 | return 0; | |
498 | } | |
33d23b87 | 499 | |
af9752e5 | 500 | RECORD_LAYER_clear(&s->rlayer); |
33d23b87 | 501 | |
a89325e4 | 502 | return 1; |
0f113f3e | 503 | } |
d02b48c6 | 504 | |
4f43d0e7 | 505 | /** Used to change an SSL_CTXs default SSL method type */ |
0f113f3e MC |
506 | int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) |
507 | { | |
508 | STACK_OF(SSL_CIPHER) *sk; | |
509 | ||
510 | ctx->method = meth; | |
511 | ||
512 | sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list), | |
513 | &(ctx->cipher_list_by_id), | |
514 | SSL_DEFAULT_CIPHER_LIST, ctx->cert); | |
515 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { | |
a230b26e | 516 | SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); |
0f113f3e MC |
517 | return (0); |
518 | } | |
519 | return (1); | |
520 | } | |
d02b48c6 | 521 | |
4f43d0e7 | 522 | SSL *SSL_new(SSL_CTX *ctx) |
0f113f3e MC |
523 | { |
524 | SSL *s; | |
525 | ||
526 | if (ctx == NULL) { | |
527 | SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX); | |
528 | return (NULL); | |
529 | } | |
530 | if (ctx->method == NULL) { | |
531 | SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); | |
532 | return (NULL); | |
533 | } | |
534 | ||
b51bce94 | 535 | s = OPENSSL_zalloc(sizeof(*s)); |
0f113f3e MC |
536 | if (s == NULL) |
537 | goto err; | |
0f113f3e | 538 | |
16203f7b AG |
539 | s->lock = CRYPTO_THREAD_lock_new(); |
540 | if (s->lock == NULL) { | |
541 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); | |
542 | OPENSSL_free(s); | |
543 | return NULL; | |
544 | } | |
545 | ||
c036e210 | 546 | RECORD_LAYER_init(&s->rlayer, s); |
28d59af8 | 547 | |
0f113f3e | 548 | s->options = ctx->options; |
5ae4ceb9 | 549 | s->dane.flags = ctx->dane.flags; |
7946ab33 KR |
550 | s->min_proto_version = ctx->min_proto_version; |
551 | s->max_proto_version = ctx->max_proto_version; | |
0f113f3e MC |
552 | s->mode = ctx->mode; |
553 | s->max_cert_list = ctx->max_cert_list; | |
0e04674e | 554 | s->references = 1; |
3fc8d856 | 555 | s->max_early_data = ctx->max_early_data; |
0f113f3e | 556 | |
2c382349 KR |
557 | /* |
558 | * Earlier library versions used to copy the pointer to the CERT, not | |
559 | * its contents; only when setting new parameters for the per-SSL | |
560 | * copy, ssl_cert_new would be called (and the direct reference to | |
561 | * the per-SSL_CTX settings would be lost, but those still were | |
562 | * indirectly accessed for various purposes, and for that reason they | |
563 | * used to be known as s->ctx->default_cert). Now we don't look at the | |
564 | * SSL_CTX's CERT after having duplicated it once. | |
565 | */ | |
566 | s->cert = ssl_cert_dup(ctx->cert); | |
567 | if (s->cert == NULL) | |
568 | goto err; | |
0f113f3e | 569 | |
52e1d7b1 | 570 | RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead); |
0f113f3e MC |
571 | s->msg_callback = ctx->msg_callback; |
572 | s->msg_callback_arg = ctx->msg_callback_arg; | |
573 | s->verify_mode = ctx->verify_mode; | |
574 | s->not_resumable_session_cb = ctx->not_resumable_session_cb; | |
c649d10d TS |
575 | s->record_padding_cb = ctx->record_padding_cb; |
576 | s->record_padding_arg = ctx->record_padding_arg; | |
577 | s->block_padding = ctx->block_padding; | |
0f113f3e | 578 | s->sid_ctx_length = ctx->sid_ctx_length; |
380a522f MC |
579 | if (!ossl_assert(s->sid_ctx_length <= sizeof s->sid_ctx)) |
580 | goto err; | |
0f113f3e MC |
581 | memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); |
582 | s->verify_callback = ctx->default_verify_callback; | |
583 | s->generate_session_id = ctx->generate_session_id; | |
584 | ||
585 | s->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 586 | if (s->param == NULL) |
0f113f3e MC |
587 | goto err; |
588 | X509_VERIFY_PARAM_inherit(s->param, ctx->param); | |
0f113f3e MC |
589 | s->quiet_shutdown = ctx->quiet_shutdown; |
590 | s->max_send_fragment = ctx->max_send_fragment; | |
d102d9df MC |
591 | s->split_send_fragment = ctx->split_send_fragment; |
592 | s->max_pipelines = ctx->max_pipelines; | |
94777c9c MC |
593 | if (s->max_pipelines > 1) |
594 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
dad78fb1 MC |
595 | if (ctx->default_read_buf_len > 0) |
596 | SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len); | |
bf21446a | 597 | |
16203f7b | 598 | SSL_CTX_up_ref(ctx); |
0f113f3e | 599 | s->ctx = ctx; |
aff8c126 RS |
600 | s->ext.debug_cb = 0; |
601 | s->ext.debug_arg = NULL; | |
602 | s->ext.ticket_expected = 0; | |
603 | s->ext.status_type = ctx->ext.status_type; | |
604 | s->ext.status_expected = 0; | |
605 | s->ext.ocsp.ids = NULL; | |
606 | s->ext.ocsp.exts = NULL; | |
607 | s->ext.ocsp.resp = NULL; | |
608 | s->ext.ocsp.resp_len = 0; | |
16203f7b | 609 | SSL_CTX_up_ref(ctx); |
222da979 | 610 | s->session_ctx = ctx; |
a230b26e | 611 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
612 | if (ctx->ext.ecpointformats) { |
613 | s->ext.ecpointformats = | |
614 | OPENSSL_memdup(ctx->ext.ecpointformats, | |
615 | ctx->ext.ecpointformats_len); | |
616 | if (!s->ext.ecpointformats) | |
0f113f3e | 617 | goto err; |
aff8c126 RS |
618 | s->ext.ecpointformats_len = |
619 | ctx->ext.ecpointformats_len; | |
620 | } | |
621 | if (ctx->ext.supportedgroups) { | |
622 | s->ext.supportedgroups = | |
623 | OPENSSL_memdup(ctx->ext.supportedgroups, | |
624 | ctx->ext.supportedgroups_len); | |
625 | if (!s->ext.supportedgroups) | |
0f113f3e | 626 | goto err; |
aff8c126 | 627 | s->ext.supportedgroups_len = ctx->ext.supportedgroups_len; |
0f113f3e | 628 | } |
a230b26e EK |
629 | #endif |
630 | #ifndef OPENSSL_NO_NEXTPROTONEG | |
aff8c126 | 631 | s->ext.npn = NULL; |
a230b26e | 632 | #endif |
6f017a8f | 633 | |
aff8c126 RS |
634 | if (s->ctx->ext.alpn) { |
635 | s->ext.alpn = OPENSSL_malloc(s->ctx->ext.alpn_len); | |
636 | if (s->ext.alpn == NULL) | |
0f113f3e | 637 | goto err; |
aff8c126 RS |
638 | memcpy(s->ext.alpn, s->ctx->ext.alpn, s->ctx->ext.alpn_len); |
639 | s->ext.alpn_len = s->ctx->ext.alpn_len; | |
0f113f3e | 640 | } |
d02b48c6 | 641 | |
696178ed | 642 | s->verified_chain = NULL; |
0f113f3e | 643 | s->verify_result = X509_V_OK; |
d02b48c6 | 644 | |
a974e64a MC |
645 | s->default_passwd_callback = ctx->default_passwd_callback; |
646 | s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata; | |
647 | ||
0f113f3e | 648 | s->method = ctx->method; |
d02b48c6 | 649 | |
44c04a2e MC |
650 | s->key_update = SSL_KEY_UPDATE_NONE; |
651 | ||
0f113f3e MC |
652 | if (!s->method->ssl_new(s)) |
653 | goto err; | |
d02b48c6 | 654 | |
0f113f3e | 655 | s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1; |
bf21446a | 656 | |
61986d32 | 657 | if (!SSL_clear(s)) |
69f68237 | 658 | goto err; |
58964a49 | 659 | |
25a807bc F |
660 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data)) |
661 | goto err; | |
58964a49 | 662 | |
ddac1974 | 663 | #ifndef OPENSSL_NO_PSK |
0f113f3e MC |
664 | s->psk_client_callback = ctx->psk_client_callback; |
665 | s->psk_server_callback = ctx->psk_server_callback; | |
ddac1974 NL |
666 | #endif |
667 | ||
07bbc92c MC |
668 | s->job = NULL; |
669 | ||
ed29e82a RP |
670 | #ifndef OPENSSL_NO_CT |
671 | if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback, | |
a230b26e | 672 | ctx->ct_validation_callback_arg)) |
ed29e82a RP |
673 | goto err; |
674 | #endif | |
675 | ||
16203f7b | 676 | return s; |
0f113f3e | 677 | err: |
62adbcee | 678 | SSL_free(s); |
0f113f3e | 679 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); |
16203f7b | 680 | return NULL; |
0f113f3e | 681 | } |
d02b48c6 | 682 | |
e417070c RS |
683 | int SSL_is_dtls(const SSL *s) |
684 | { | |
685 | return SSL_IS_DTLS(s) ? 1 : 0; | |
686 | } | |
687 | ||
c5ebfcab | 688 | int SSL_up_ref(SSL *s) |
a18a31e4 | 689 | { |
16203f7b | 690 | int i; |
c5ebfcab | 691 | |
2f545ae4 | 692 | if (CRYPTO_UP_REF(&s->references, &i, s->lock) <= 0) |
c5ebfcab F |
693 | return 0; |
694 | ||
695 | REF_PRINT_COUNT("SSL", s); | |
696 | REF_ASSERT_ISNT(i < 2); | |
697 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
698 | } |
699 | ||
0f113f3e MC |
700 | int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, |
701 | unsigned int sid_ctx_len) | |
702 | { | |
703 | if (sid_ctx_len > sizeof ctx->sid_ctx) { | |
704 | SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT, | |
705 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
706 | return 0; | |
707 | } | |
708 | ctx->sid_ctx_length = sid_ctx_len; | |
709 | memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); | |
4eb77b26 BM |
710 | |
711 | return 1; | |
0f113f3e | 712 | } |
4eb77b26 | 713 | |
0f113f3e MC |
714 | int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, |
715 | unsigned int sid_ctx_len) | |
716 | { | |
717 | if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { | |
718 | SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT, | |
719 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
720 | return 0; | |
721 | } | |
722 | ssl->sid_ctx_length = sid_ctx_len; | |
723 | memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); | |
b4cadc6e BL |
724 | |
725 | return 1; | |
0f113f3e | 726 | } |
b4cadc6e | 727 | |
dc644fe2 | 728 | int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) |
0f113f3e | 729 | { |
16203f7b | 730 | CRYPTO_THREAD_write_lock(ctx->lock); |
0f113f3e | 731 | ctx->generate_session_id = cb; |
16203f7b | 732 | CRYPTO_THREAD_unlock(ctx->lock); |
0f113f3e MC |
733 | return 1; |
734 | } | |
dc644fe2 GT |
735 | |
736 | int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) | |
0f113f3e | 737 | { |
16203f7b | 738 | CRYPTO_THREAD_write_lock(ssl->lock); |
0f113f3e | 739 | ssl->generate_session_id = cb; |
16203f7b | 740 | CRYPTO_THREAD_unlock(ssl->lock); |
0f113f3e MC |
741 | return 1; |
742 | } | |
dc644fe2 | 743 | |
f85c9904 | 744 | int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, |
0f113f3e MC |
745 | unsigned int id_len) |
746 | { | |
747 | /* | |
748 | * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how | |
69687aa8 | 749 | * we can "construct" a session to give us the desired check - i.e. to |
0f113f3e MC |
750 | * find if there's a session in the hash table that would conflict with |
751 | * any new session built out of this id/id_len and the ssl_version in use | |
752 | * by this SSL. | |
753 | */ | |
754 | SSL_SESSION r, *p; | |
755 | ||
756 | if (id_len > sizeof r.session_id) | |
757 | return 0; | |
758 | ||
759 | r.ssl_version = ssl->version; | |
760 | r.session_id_length = id_len; | |
761 | memcpy(r.session_id, id, id_len); | |
762 | ||
e2bb9b9b TS |
763 | CRYPTO_THREAD_read_lock(ssl->session_ctx->lock); |
764 | p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r); | |
765 | CRYPTO_THREAD_unlock(ssl->session_ctx->lock); | |
0f113f3e MC |
766 | return (p != NULL); |
767 | } | |
dc644fe2 | 768 | |
bb7cd4e3 | 769 | int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) |
0f113f3e MC |
770 | { |
771 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
772 | } | |
bb7cd4e3 DSH |
773 | |
774 | int SSL_set_purpose(SSL *s, int purpose) | |
0f113f3e MC |
775 | { |
776 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
777 | } | |
926a56bf | 778 | |
bb7cd4e3 | 779 | int SSL_CTX_set_trust(SSL_CTX *s, int trust) |
0f113f3e MC |
780 | { |
781 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
782 | } | |
bb7cd4e3 DSH |
783 | |
784 | int SSL_set_trust(SSL *s, int trust) | |
0f113f3e MC |
785 | { |
786 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
787 | } | |
bb7cd4e3 | 788 | |
919ba009 VD |
789 | int SSL_set1_host(SSL *s, const char *hostname) |
790 | { | |
791 | return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); | |
792 | } | |
793 | ||
794 | int SSL_add1_host(SSL *s, const char *hostname) | |
795 | { | |
796 | return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0); | |
797 | } | |
798 | ||
799 | void SSL_set_hostflags(SSL *s, unsigned int flags) | |
800 | { | |
801 | X509_VERIFY_PARAM_set_hostflags(s->param, flags); | |
802 | } | |
803 | ||
4588cb44 | 804 | const char *SSL_get0_peername(SSL *s) |
919ba009 VD |
805 | { |
806 | return X509_VERIFY_PARAM_get0_peername(s->param); | |
807 | } | |
808 | ||
809 | int SSL_CTX_dane_enable(SSL_CTX *ctx) | |
810 | { | |
811 | return dane_ctx_enable(&ctx->dane); | |
812 | } | |
813 | ||
5ae4ceb9 VD |
814 | unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags) |
815 | { | |
816 | unsigned long orig = ctx->dane.flags; | |
817 | ||
818 | ctx->dane.flags |= flags; | |
819 | return orig; | |
820 | } | |
821 | ||
822 | unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags) | |
823 | { | |
824 | unsigned long orig = ctx->dane.flags; | |
825 | ||
826 | ctx->dane.flags &= ~flags; | |
827 | return orig; | |
828 | } | |
829 | ||
919ba009 VD |
830 | int SSL_dane_enable(SSL *s, const char *basedomain) |
831 | { | |
b9aec69a | 832 | SSL_DANE *dane = &s->dane; |
919ba009 VD |
833 | |
834 | if (s->ctx->dane.mdmax == 0) { | |
835 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED); | |
836 | return 0; | |
837 | } | |
838 | if (dane->trecs != NULL) { | |
839 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED); | |
840 | return 0; | |
841 | } | |
842 | ||
8d887efa VD |
843 | /* |
844 | * Default SNI name. This rejects empty names, while set1_host below | |
845 | * accepts them and disables host name checks. To avoid side-effects with | |
846 | * invalid input, set the SNI name first. | |
847 | */ | |
aff8c126 | 848 | if (s->ext.hostname == NULL) { |
dccd20d1 | 849 | if (!SSL_set_tlsext_host_name(s, basedomain)) { |
8d887efa | 850 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); |
dccd20d1 | 851 | return -1; |
8d887efa VD |
852 | } |
853 | } | |
854 | ||
919ba009 VD |
855 | /* Primary RFC6125 reference identifier */ |
856 | if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) { | |
857 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); | |
858 | return -1; | |
859 | } | |
860 | ||
919ba009 VD |
861 | dane->mdpth = -1; |
862 | dane->pdpth = -1; | |
863 | dane->dctx = &s->ctx->dane; | |
864 | dane->trecs = sk_danetls_record_new_null(); | |
865 | ||
866 | if (dane->trecs == NULL) { | |
867 | SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE); | |
868 | return -1; | |
869 | } | |
870 | return 1; | |
871 | } | |
872 | ||
5ae4ceb9 VD |
873 | unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags) |
874 | { | |
875 | unsigned long orig = ssl->dane.flags; | |
876 | ||
877 | ssl->dane.flags |= flags; | |
878 | return orig; | |
879 | } | |
880 | ||
881 | unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags) | |
882 | { | |
883 | unsigned long orig = ssl->dane.flags; | |
884 | ||
885 | ssl->dane.flags &= ~flags; | |
886 | return orig; | |
887 | } | |
888 | ||
919ba009 VD |
889 | int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki) |
890 | { | |
b9aec69a | 891 | SSL_DANE *dane = &s->dane; |
919ba009 | 892 | |
c0a445a9 | 893 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
894 | return -1; |
895 | if (dane->mtlsa) { | |
896 | if (mcert) | |
897 | *mcert = dane->mcert; | |
898 | if (mspki) | |
899 | *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL; | |
900 | } | |
901 | return dane->mdpth; | |
902 | } | |
903 | ||
904 | int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector, | |
905 | uint8_t *mtype, unsigned const char **data, size_t *dlen) | |
906 | { | |
b9aec69a | 907 | SSL_DANE *dane = &s->dane; |
919ba009 | 908 | |
c0a445a9 | 909 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
910 | return -1; |
911 | if (dane->mtlsa) { | |
912 | if (usage) | |
913 | *usage = dane->mtlsa->usage; | |
914 | if (selector) | |
915 | *selector = dane->mtlsa->selector; | |
916 | if (mtype) | |
917 | *mtype = dane->mtlsa->mtype; | |
918 | if (data) | |
919 | *data = dane->mtlsa->data; | |
920 | if (dlen) | |
921 | *dlen = dane->mtlsa->dlen; | |
922 | } | |
923 | return dane->mdpth; | |
924 | } | |
925 | ||
b9aec69a | 926 | SSL_DANE *SSL_get0_dane(SSL *s) |
919ba009 VD |
927 | { |
928 | return &s->dane; | |
929 | } | |
930 | ||
931 | int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector, | |
932 | uint8_t mtype, unsigned char *data, size_t dlen) | |
933 | { | |
934 | return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen); | |
935 | } | |
936 | ||
a230b26e EK |
937 | int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype, |
938 | uint8_t ord) | |
919ba009 VD |
939 | { |
940 | return dane_mtype_set(&ctx->dane, md, mtype, ord); | |
941 | } | |
942 | ||
ccf11751 | 943 | int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) |
0f113f3e MC |
944 | { |
945 | return X509_VERIFY_PARAM_set1(ctx->param, vpm); | |
946 | } | |
ccf11751 DSH |
947 | |
948 | int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) | |
0f113f3e MC |
949 | { |
950 | return X509_VERIFY_PARAM_set1(ssl->param, vpm); | |
951 | } | |
ccf11751 | 952 | |
7af31968 | 953 | X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx) |
0f113f3e MC |
954 | { |
955 | return ctx->param; | |
956 | } | |
7af31968 DSH |
957 | |
958 | X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl) | |
0f113f3e MC |
959 | { |
960 | return ssl->param; | |
961 | } | |
7af31968 | 962 | |
a5ee80b9 | 963 | void SSL_certs_clear(SSL *s) |
0f113f3e MC |
964 | { |
965 | ssl_cert_clear_certs(s->cert); | |
966 | } | |
a5ee80b9 | 967 | |
4f43d0e7 | 968 | void SSL_free(SSL *s) |
0f113f3e MC |
969 | { |
970 | int i; | |
58964a49 | 971 | |
0f113f3e MC |
972 | if (s == NULL) |
973 | return; | |
e03ddfae | 974 | |
2f545ae4 | 975 | CRYPTO_DOWN_REF(&s->references, &i, s->lock); |
f3f1cf84 | 976 | REF_PRINT_COUNT("SSL", s); |
0f113f3e MC |
977 | if (i > 0) |
978 | return; | |
f3f1cf84 | 979 | REF_ASSERT_ISNT(i < 0); |
d02b48c6 | 980 | |
222561fe | 981 | X509_VERIFY_PARAM_free(s->param); |
919ba009 | 982 | dane_final(&s->dane); |
0f113f3e MC |
983 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); |
984 | ||
b77f3ed1 | 985 | /* Ignore return value */ |
2e7dc7cd MC |
986 | ssl_free_wbio_buffer(s); |
987 | ||
65e2d672 | 988 | BIO_free_all(s->wbio); |
325cfa85 | 989 | BIO_free_all(s->rbio); |
0f113f3e | 990 | |
25aaa98a | 991 | BUF_MEM_free(s->init_buf); |
0f113f3e MC |
992 | |
993 | /* add extra stuff */ | |
25aaa98a RS |
994 | sk_SSL_CIPHER_free(s->cipher_list); |
995 | sk_SSL_CIPHER_free(s->cipher_list_by_id); | |
0f113f3e MC |
996 | |
997 | /* Make the next call work :-) */ | |
998 | if (s->session != NULL) { | |
999 | ssl_clear_bad_session(s); | |
1000 | SSL_SESSION_free(s->session); | |
1001 | } | |
1002 | ||
d31fb0b5 | 1003 | clear_ciphers(s); |
d02b48c6 | 1004 | |
e0e920b1 | 1005 | ssl_cert_free(s->cert); |
0f113f3e | 1006 | /* Free up if allocated */ |
d02b48c6 | 1007 | |
aff8c126 | 1008 | OPENSSL_free(s->ext.hostname); |
222da979 | 1009 | SSL_CTX_free(s->session_ctx); |
e481f9b9 | 1010 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
1011 | OPENSSL_free(s->ext.ecpointformats); |
1012 | OPENSSL_free(s->ext.supportedgroups); | |
a230b26e | 1013 | #endif /* OPENSSL_NO_EC */ |
aff8c126 | 1014 | sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free); |
3e41ac35 | 1015 | #ifndef OPENSSL_NO_OCSP |
aff8c126 | 1016 | sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free); |
3e41ac35 | 1017 | #endif |
ed29e82a RP |
1018 | #ifndef OPENSSL_NO_CT |
1019 | SCT_LIST_free(s->scts); | |
aff8c126 | 1020 | OPENSSL_free(s->ext.scts); |
ed29e82a | 1021 | #endif |
aff8c126 RS |
1022 | OPENSSL_free(s->ext.ocsp.resp); |
1023 | OPENSSL_free(s->ext.alpn); | |
cfef5027 | 1024 | OPENSSL_free(s->ext.tls13_cookie); |
6b1bb98f | 1025 | OPENSSL_free(s->clienthello); |
0f113f3e | 1026 | |
fa7c2637 | 1027 | sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free); |
0f113f3e | 1028 | |
696178ed DSH |
1029 | sk_X509_pop_free(s->verified_chain, X509_free); |
1030 | ||
0f113f3e MC |
1031 | if (s->method != NULL) |
1032 | s->method->ssl_free(s); | |
1033 | ||
f161995e | 1034 | RECORD_LAYER_release(&s->rlayer); |
33d23b87 | 1035 | |
e0e920b1 | 1036 | SSL_CTX_free(s->ctx); |
7c3908dd | 1037 | |
ff75a257 MC |
1038 | ASYNC_WAIT_CTX_free(s->waitctx); |
1039 | ||
e481f9b9 | 1040 | #if !defined(OPENSSL_NO_NEXTPROTONEG) |
aff8c126 | 1041 | OPENSSL_free(s->ext.npn); |
ee2ffc27 BL |
1042 | #endif |
1043 | ||
e783bae2 | 1044 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 1045 | sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); |
0f113f3e MC |
1046 | #endif |
1047 | ||
16203f7b AG |
1048 | CRYPTO_THREAD_lock_free(s->lock); |
1049 | ||
0f113f3e MC |
1050 | OPENSSL_free(s); |
1051 | } | |
1052 | ||
65e2d672 | 1053 | void SSL_set0_rbio(SSL *s, BIO *rbio) |
3ffbe008 | 1054 | { |
65e2d672 | 1055 | BIO_free_all(s->rbio); |
3ffbe008 MC |
1056 | s->rbio = rbio; |
1057 | } | |
1058 | ||
65e2d672 | 1059 | void SSL_set0_wbio(SSL *s, BIO *wbio) |
0f113f3e MC |
1060 | { |
1061 | /* | |
1062 | * If the output buffering BIO is still in place, remove it | |
1063 | */ | |
2e7dc7cd MC |
1064 | if (s->bbio != NULL) |
1065 | s->wbio = BIO_pop(s->wbio); | |
1066 | ||
65e2d672 | 1067 | BIO_free_all(s->wbio); |
0f113f3e | 1068 | s->wbio = wbio; |
2e7dc7cd MC |
1069 | |
1070 | /* Re-attach |bbio| to the new |wbio|. */ | |
1071 | if (s->bbio != NULL) | |
1072 | s->wbio = BIO_push(s->bbio, s->wbio); | |
0f113f3e | 1073 | } |
d02b48c6 | 1074 | |
3ffbe008 MC |
1075 | void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) |
1076 | { | |
65e2d672 MC |
1077 | /* |
1078 | * For historical reasons, this function has many different cases in | |
1079 | * ownership handling. | |
1080 | */ | |
1081 | ||
1082 | /* If nothing has changed, do nothing */ | |
1083 | if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s)) | |
1084 | return; | |
1085 | ||
1086 | /* | |
1087 | * If the two arguments are equal then one fewer reference is granted by the | |
1088 | * caller than we want to take | |
1089 | */ | |
1090 | if (rbio != NULL && rbio == wbio) | |
1091 | BIO_up_ref(rbio); | |
1092 | ||
1093 | /* | |
1094 | * If only the wbio is changed only adopt one reference. | |
1095 | */ | |
1096 | if (rbio == SSL_get_rbio(s)) { | |
1097 | SSL_set0_wbio(s, wbio); | |
1098 | return; | |
1099 | } | |
1100 | /* | |
1101 | * There is an asymmetry here for historical reasons. If only the rbio is | |
1102 | * changed AND the rbio and wbio were originally different, then we only | |
1103 | * adopt one reference. | |
1104 | */ | |
1105 | if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) { | |
1106 | SSL_set0_rbio(s, rbio); | |
1107 | return; | |
1108 | } | |
1109 | ||
1110 | /* Otherwise, adopt both references. */ | |
1111 | SSL_set0_rbio(s, rbio); | |
1112 | SSL_set0_wbio(s, wbio); | |
3ffbe008 MC |
1113 | } |
1114 | ||
0821bcd4 | 1115 | BIO *SSL_get_rbio(const SSL *s) |
0f113f3e | 1116 | { |
2e7dc7cd | 1117 | return s->rbio; |
0f113f3e | 1118 | } |
d02b48c6 | 1119 | |
0821bcd4 | 1120 | BIO *SSL_get_wbio(const SSL *s) |
0f113f3e | 1121 | { |
2e7dc7cd MC |
1122 | if (s->bbio != NULL) { |
1123 | /* | |
1124 | * If |bbio| is active, the true caller-configured BIO is its | |
1125 | * |next_bio|. | |
1126 | */ | |
1127 | return BIO_next(s->bbio); | |
1128 | } | |
1129 | return s->wbio; | |
0f113f3e | 1130 | } |
d02b48c6 | 1131 | |
0821bcd4 | 1132 | int SSL_get_fd(const SSL *s) |
0f113f3e | 1133 | { |
2e7dc7cd | 1134 | return SSL_get_rfd(s); |
0f113f3e | 1135 | } |
24cbf3ef | 1136 | |
0821bcd4 | 1137 | int SSL_get_rfd(const SSL *s) |
0f113f3e MC |
1138 | { |
1139 | int ret = -1; | |
1140 | BIO *b, *r; | |
1141 | ||
1142 | b = SSL_get_rbio(s); | |
1143 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1144 | if (r != NULL) | |
1145 | BIO_get_fd(r, &ret); | |
1146 | return (ret); | |
1147 | } | |
d02b48c6 | 1148 | |
0821bcd4 | 1149 | int SSL_get_wfd(const SSL *s) |
0f113f3e MC |
1150 | { |
1151 | int ret = -1; | |
1152 | BIO *b, *r; | |
1153 | ||
1154 | b = SSL_get_wbio(s); | |
1155 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1156 | if (r != NULL) | |
1157 | BIO_get_fd(r, &ret); | |
1158 | return (ret); | |
1159 | } | |
24cbf3ef | 1160 | |
bc36ee62 | 1161 | #ifndef OPENSSL_NO_SOCK |
0f113f3e MC |
1162 | int SSL_set_fd(SSL *s, int fd) |
1163 | { | |
1164 | int ret = 0; | |
1165 | BIO *bio = NULL; | |
1166 | ||
1167 | bio = BIO_new(BIO_s_socket()); | |
1168 | ||
1169 | if (bio == NULL) { | |
1170 | SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB); | |
1171 | goto err; | |
1172 | } | |
1173 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
1174 | SSL_set_bio(s, bio, bio); | |
1175 | ret = 1; | |
1176 | err: | |
1177 | return (ret); | |
1178 | } | |
d02b48c6 | 1179 | |
0f113f3e MC |
1180 | int SSL_set_wfd(SSL *s, int fd) |
1181 | { | |
2e7dc7cd | 1182 | BIO *rbio = SSL_get_rbio(s); |
0f113f3e | 1183 | |
2e7dc7cd MC |
1184 | if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET |
1185 | || (int)BIO_get_fd(rbio, NULL) != fd) { | |
1186 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1187 | |
1188 | if (bio == NULL) { | |
1189 | SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1190 | return 0; |
0f113f3e MC |
1191 | } |
1192 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
65e2d672 | 1193 | SSL_set0_wbio(s, bio); |
2e7dc7cd | 1194 | } else { |
65e2d672 MC |
1195 | BIO_up_ref(rbio); |
1196 | SSL_set0_wbio(s, rbio); | |
2e7dc7cd MC |
1197 | } |
1198 | return 1; | |
0f113f3e MC |
1199 | } |
1200 | ||
1201 | int SSL_set_rfd(SSL *s, int fd) | |
1202 | { | |
2e7dc7cd | 1203 | BIO *wbio = SSL_get_wbio(s); |
0f113f3e | 1204 | |
2e7dc7cd MC |
1205 | if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET |
1206 | || ((int)BIO_get_fd(wbio, NULL) != fd)) { | |
1207 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1208 | |
1209 | if (bio == NULL) { | |
1210 | SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1211 | return 0; |
0f113f3e MC |
1212 | } |
1213 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
65e2d672 | 1214 | SSL_set0_rbio(s, bio); |
2e7dc7cd | 1215 | } else { |
65e2d672 MC |
1216 | BIO_up_ref(wbio); |
1217 | SSL_set0_rbio(s, wbio); | |
2e7dc7cd MC |
1218 | } |
1219 | ||
1220 | return 1; | |
0f113f3e MC |
1221 | } |
1222 | #endif | |
ca03109c BM |
1223 | |
1224 | /* return length of latest Finished message we sent, copy to 'buf' */ | |
0821bcd4 | 1225 | size_t SSL_get_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1226 | { |
1227 | size_t ret = 0; | |
1228 | ||
1229 | if (s->s3 != NULL) { | |
1230 | ret = s->s3->tmp.finish_md_len; | |
1231 | if (count > ret) | |
1232 | count = ret; | |
1233 | memcpy(buf, s->s3->tmp.finish_md, count); | |
1234 | } | |
1235 | return ret; | |
1236 | } | |
ca03109c BM |
1237 | |
1238 | /* return length of latest Finished message we expected, copy to 'buf' */ | |
0821bcd4 | 1239 | size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1240 | { |
1241 | size_t ret = 0; | |
ca03109c | 1242 | |
0f113f3e MC |
1243 | if (s->s3 != NULL) { |
1244 | ret = s->s3->tmp.peer_finish_md_len; | |
1245 | if (count > ret) | |
1246 | count = ret; | |
1247 | memcpy(buf, s->s3->tmp.peer_finish_md, count); | |
1248 | } | |
1249 | return ret; | |
1250 | } | |
ca03109c | 1251 | |
0821bcd4 | 1252 | int SSL_get_verify_mode(const SSL *s) |
0f113f3e MC |
1253 | { |
1254 | return (s->verify_mode); | |
1255 | } | |
d02b48c6 | 1256 | |
0821bcd4 | 1257 | int SSL_get_verify_depth(const SSL *s) |
0f113f3e MC |
1258 | { |
1259 | return X509_VERIFY_PARAM_get_depth(s->param); | |
1260 | } | |
7f89714e | 1261 | |
0f113f3e MC |
1262 | int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) { |
1263 | return (s->verify_callback); | |
1264 | } | |
d02b48c6 | 1265 | |
0821bcd4 | 1266 | int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) |
0f113f3e MC |
1267 | { |
1268 | return (ctx->verify_mode); | |
1269 | } | |
d02b48c6 | 1270 | |
0821bcd4 | 1271 | int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) |
0f113f3e MC |
1272 | { |
1273 | return X509_VERIFY_PARAM_get_depth(ctx->param); | |
1274 | } | |
1275 | ||
1276 | int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) { | |
1277 | return (ctx->default_verify_callback); | |
1278 | } | |
1279 | ||
1280 | void SSL_set_verify(SSL *s, int mode, | |
1281 | int (*callback) (int ok, X509_STORE_CTX *ctx)) | |
1282 | { | |
1283 | s->verify_mode = mode; | |
1284 | if (callback != NULL) | |
1285 | s->verify_callback = callback; | |
1286 | } | |
1287 | ||
1288 | void SSL_set_verify_depth(SSL *s, int depth) | |
1289 | { | |
1290 | X509_VERIFY_PARAM_set_depth(s->param, depth); | |
1291 | } | |
1292 | ||
1293 | void SSL_set_read_ahead(SSL *s, int yes) | |
1294 | { | |
52e1d7b1 | 1295 | RECORD_LAYER_set_read_ahead(&s->rlayer, yes); |
0f113f3e | 1296 | } |
d02b48c6 | 1297 | |
0821bcd4 | 1298 | int SSL_get_read_ahead(const SSL *s) |
0f113f3e | 1299 | { |
52e1d7b1 | 1300 | return RECORD_LAYER_get_read_ahead(&s->rlayer); |
0f113f3e | 1301 | } |
d02b48c6 | 1302 | |
0821bcd4 | 1303 | int SSL_pending(const SSL *s) |
0f113f3e | 1304 | { |
8b0e934a MC |
1305 | size_t pending = s->method->ssl_pending(s); |
1306 | ||
0f113f3e MC |
1307 | /* |
1308 | * SSL_pending cannot work properly if read-ahead is enabled | |
1309 | * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is | |
1310 | * impossible to fix since SSL_pending cannot report errors that may be | |
1311 | * observed while scanning the new data. (Note that SSL_pending() is | |
1312 | * often used as a boolean value, so we'd better not return -1.) | |
8b0e934a MC |
1313 | * |
1314 | * SSL_pending also cannot work properly if the value >INT_MAX. In that case | |
1315 | * we just return INT_MAX. | |
0f113f3e | 1316 | */ |
348240c6 | 1317 | return pending < INT_MAX ? (int)pending : INT_MAX; |
0f113f3e | 1318 | } |
d02b48c6 | 1319 | |
49580f25 MC |
1320 | int SSL_has_pending(const SSL *s) |
1321 | { | |
1322 | /* | |
1323 | * Similar to SSL_pending() but returns a 1 to indicate that we have | |
1324 | * unprocessed data available or 0 otherwise (as opposed to the number of | |
1325 | * bytes available). Unlike SSL_pending() this will take into account | |
1326 | * read_ahead data. A 1 return simply indicates that we have unprocessed | |
1327 | * data. That data may not result in any application data, or we may fail | |
1328 | * to parse the records for some reason. | |
1329 | */ | |
b8c49611 | 1330 | if (RECORD_LAYER_processed_read_pending(&s->rlayer)) |
49580f25 MC |
1331 | return 1; |
1332 | ||
1333 | return RECORD_LAYER_read_pending(&s->rlayer); | |
1334 | } | |
1335 | ||
0821bcd4 | 1336 | X509 *SSL_get_peer_certificate(const SSL *s) |
0f113f3e MC |
1337 | { |
1338 | X509 *r; | |
d02b48c6 | 1339 | |
0f113f3e MC |
1340 | if ((s == NULL) || (s->session == NULL)) |
1341 | r = NULL; | |
1342 | else | |
1343 | r = s->session->peer; | |
d02b48c6 | 1344 | |
0f113f3e MC |
1345 | if (r == NULL) |
1346 | return (r); | |
d02b48c6 | 1347 | |
05f0fb9f | 1348 | X509_up_ref(r); |
0f113f3e MC |
1349 | |
1350 | return (r); | |
1351 | } | |
d02b48c6 | 1352 | |
0821bcd4 | 1353 | STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) |
0f113f3e MC |
1354 | { |
1355 | STACK_OF(X509) *r; | |
1356 | ||
c34b0f99 | 1357 | if ((s == NULL) || (s->session == NULL)) |
0f113f3e MC |
1358 | r = NULL; |
1359 | else | |
c34b0f99 | 1360 | r = s->session->peer_chain; |
0f113f3e MC |
1361 | |
1362 | /* | |
1363 | * If we are a client, cert_chain includes the peer's own certificate; if | |
1364 | * we are a server, it does not. | |
1365 | */ | |
1366 | ||
1367 | return (r); | |
1368 | } | |
1369 | ||
1370 | /* | |
1371 | * Now in theory, since the calling process own 't' it should be safe to | |
1372 | * modify. We need to be able to read f without being hassled | |
1373 | */ | |
17dd65e6 | 1374 | int SSL_copy_session_id(SSL *t, const SSL *f) |
0f113f3e | 1375 | { |
16203f7b | 1376 | int i; |
0f113f3e | 1377 | /* Do we need to to SSL locking? */ |
61986d32 | 1378 | if (!SSL_set_session(t, SSL_get_session(f))) { |
17dd65e6 | 1379 | return 0; |
69f68237 | 1380 | } |
0f113f3e MC |
1381 | |
1382 | /* | |
87d9cafa | 1383 | * what if we are setup for one protocol version but want to talk another |
0f113f3e MC |
1384 | */ |
1385 | if (t->method != f->method) { | |
919ba009 VD |
1386 | t->method->ssl_free(t); |
1387 | t->method = f->method; | |
1388 | if (t->method->ssl_new(t) == 0) | |
1389 | return 0; | |
0f113f3e MC |
1390 | } |
1391 | ||
2f545ae4 | 1392 | CRYPTO_UP_REF(&f->cert->references, &i, f->cert->lock); |
24a0d393 KR |
1393 | ssl_cert_free(t->cert); |
1394 | t->cert = f->cert; | |
348240c6 | 1395 | if (!SSL_set_session_id_context(t, f->sid_ctx, (int)f->sid_ctx_length)) { |
17dd65e6 | 1396 | return 0; |
69f68237 | 1397 | } |
17dd65e6 MC |
1398 | |
1399 | return 1; | |
0f113f3e | 1400 | } |
d02b48c6 | 1401 | |
58964a49 | 1402 | /* Fix this so it checks all the valid key/cert options */ |
0821bcd4 | 1403 | int SSL_CTX_check_private_key(const SSL_CTX *ctx) |
0f113f3e | 1404 | { |
a230b26e EK |
1405 | if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) { |
1406 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
0f113f3e MC |
1407 | return (0); |
1408 | } | |
1409 | if (ctx->cert->key->privatekey == NULL) { | |
a230b26e | 1410 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); |
0f113f3e MC |
1411 | return (0); |
1412 | } | |
1413 | return (X509_check_private_key | |
1414 | (ctx->cert->key->x509, ctx->cert->key->privatekey)); | |
1415 | } | |
d02b48c6 | 1416 | |
58964a49 | 1417 | /* Fix this function so that it takes an optional type parameter */ |
0821bcd4 | 1418 | int SSL_check_private_key(const SSL *ssl) |
0f113f3e MC |
1419 | { |
1420 | if (ssl == NULL) { | |
1421 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER); | |
1422 | return (0); | |
1423 | } | |
0f113f3e MC |
1424 | if (ssl->cert->key->x509 == NULL) { |
1425 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
1426 | return (0); | |
1427 | } | |
1428 | if (ssl->cert->key->privatekey == NULL) { | |
1429 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); | |
1430 | return (0); | |
1431 | } | |
1432 | return (X509_check_private_key(ssl->cert->key->x509, | |
1433 | ssl->cert->key->privatekey)); | |
1434 | } | |
d02b48c6 | 1435 | |
07bbc92c MC |
1436 | int SSL_waiting_for_async(SSL *s) |
1437 | { | |
e8aa8b6c | 1438 | if (s->job) |
82676094 MC |
1439 | return 1; |
1440 | ||
07bbc92c MC |
1441 | return 0; |
1442 | } | |
1443 | ||
ff75a257 | 1444 | int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds) |
f4da39d2 | 1445 | { |
ff75a257 MC |
1446 | ASYNC_WAIT_CTX *ctx = s->waitctx; |
1447 | ||
1448 | if (ctx == NULL) | |
1449 | return 0; | |
1450 | return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds); | |
1451 | } | |
f4da39d2 | 1452 | |
ff75a257 MC |
1453 | int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds, |
1454 | OSSL_ASYNC_FD *delfd, size_t *numdelfds) | |
1455 | { | |
1456 | ASYNC_WAIT_CTX *ctx = s->waitctx; | |
1457 | ||
1458 | if (ctx == NULL) | |
1459 | return 0; | |
1460 | return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd, | |
1461 | numdelfds); | |
f4da39d2 MC |
1462 | } |
1463 | ||
4f43d0e7 | 1464 | int SSL_accept(SSL *s) |
0f113f3e | 1465 | { |
c4c32155 | 1466 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1467 | /* Not properly initialized yet */ |
1468 | SSL_set_accept_state(s); | |
07bbc92c | 1469 | } |
add2f5ca MC |
1470 | |
1471 | return SSL_do_handshake(s); | |
0f113f3e | 1472 | } |
d02b48c6 | 1473 | |
4f43d0e7 | 1474 | int SSL_connect(SSL *s) |
0f113f3e | 1475 | { |
c4c32155 | 1476 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1477 | /* Not properly initialized yet */ |
1478 | SSL_set_connect_state(s); | |
add2f5ca | 1479 | } |
b31b04d9 | 1480 | |
add2f5ca | 1481 | return SSL_do_handshake(s); |
0f113f3e | 1482 | } |
d02b48c6 | 1483 | |
0821bcd4 | 1484 | long SSL_get_default_timeout(const SSL *s) |
0f113f3e MC |
1485 | { |
1486 | return (s->method->get_timeout()); | |
1487 | } | |
1488 | ||
7fecbf6f | 1489 | static int ssl_start_async_job(SSL *s, struct ssl_async_args *args, |
a230b26e EK |
1490 | int (*func) (void *)) |
1491 | { | |
add2f5ca | 1492 | int ret; |
ff75a257 MC |
1493 | if (s->waitctx == NULL) { |
1494 | s->waitctx = ASYNC_WAIT_CTX_new(); | |
1495 | if (s->waitctx == NULL) | |
1496 | return -1; | |
1497 | } | |
e8aa8b6c | 1498 | switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args, |
a230b26e | 1499 | sizeof(struct ssl_async_args))) { |
add2f5ca MC |
1500 | case ASYNC_ERR: |
1501 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1502 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC); |
add2f5ca MC |
1503 | return -1; |
1504 | case ASYNC_PAUSE: | |
1505 | s->rwstate = SSL_ASYNC_PAUSED; | |
1506 | return -1; | |
fc7f190c MC |
1507 | case ASYNC_NO_JOBS: |
1508 | s->rwstate = SSL_ASYNC_NO_JOBS; | |
1509 | return -1; | |
add2f5ca MC |
1510 | case ASYNC_FINISH: |
1511 | s->job = NULL; | |
1512 | return ret; | |
1513 | default: | |
1514 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1515 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR); |
add2f5ca MC |
1516 | /* Shouldn't happen */ |
1517 | return -1; | |
1518 | } | |
1519 | } | |
07bbc92c | 1520 | |
add2f5ca | 1521 | static int ssl_io_intern(void *vargs) |
07bbc92c MC |
1522 | { |
1523 | struct ssl_async_args *args; | |
1524 | SSL *s; | |
1525 | void *buf; | |
348240c6 | 1526 | size_t num; |
07bbc92c MC |
1527 | |
1528 | args = (struct ssl_async_args *)vargs; | |
1529 | s = args->s; | |
1530 | buf = args->buf; | |
1531 | num = args->num; | |
ec447924 MC |
1532 | switch (args->type) { |
1533 | case READFUNC: | |
7ee8627f | 1534 | return args->f.func_read(s, buf, num, &s->asyncrw); |
ec447924 | 1535 | case WRITEFUNC: |
7ee8627f | 1536 | return args->f.func_write(s, buf, num, &s->asyncrw); |
ec447924 MC |
1537 | case OTHERFUNC: |
1538 | return args->f.func_other(s); | |
1539 | } | |
1540 | return -1; | |
07bbc92c MC |
1541 | } |
1542 | ||
4ee7d3f9 | 1543 | int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes) |
0f113f3e | 1544 | { |
c4c32155 | 1545 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1546 | SSLerr(SSL_F_SSL_READ_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1547 | return -1; |
1548 | } | |
1549 | ||
1550 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
1551 | s->rwstate = SSL_NOTHING; | |
4ee7d3f9 | 1552 | return 0; |
0f113f3e | 1553 | } |
07bbc92c | 1554 | |
564547e4 MC |
1555 | if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY |
1556 | || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) { | |
0a5ece5b MC |
1557 | SSLerr(SSL_F_SSL_READ_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1558 | return 0; | |
1559 | } | |
564547e4 MC |
1560 | /* |
1561 | * If we are a client and haven't received the ServerHello etc then we | |
1562 | * better do that | |
1563 | */ | |
1564 | ossl_statem_check_finish_init(s, 0); | |
0a5ece5b | 1565 | |
e8aa8b6c | 1566 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1567 | struct ssl_async_args args; |
eda75751 | 1568 | int ret; |
add2f5ca MC |
1569 | |
1570 | args.s = s; | |
1571 | args.buf = buf; | |
1572 | args.num = num; | |
ec447924 MC |
1573 | args.type = READFUNC; |
1574 | args.f.func_read = s->method->ssl_read; | |
add2f5ca | 1575 | |
eda75751 | 1576 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
54105ddd | 1577 | *readbytes = s->asyncrw; |
eda75751 | 1578 | return ret; |
07bbc92c | 1579 | } else { |
54105ddd | 1580 | return s->method->ssl_read(s, buf, num, readbytes); |
07bbc92c | 1581 | } |
0f113f3e MC |
1582 | } |
1583 | ||
4ee7d3f9 | 1584 | int SSL_read(SSL *s, void *buf, int num) |
eda75751 MC |
1585 | { |
1586 | int ret; | |
54105ddd | 1587 | size_t readbytes; |
eda75751 MC |
1588 | |
1589 | if (num < 0) { | |
4ee7d3f9 | 1590 | SSLerr(SSL_F_SSL_READ, SSL_R_BAD_LENGTH); |
eda75751 MC |
1591 | return -1; |
1592 | } | |
1593 | ||
4ee7d3f9 | 1594 | ret = ssl_read_internal(s, buf, (size_t)num, &readbytes); |
eda75751 MC |
1595 | |
1596 | /* | |
1597 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1598 | * <= INT_MAX | |
1599 | */ | |
1600 | if (ret > 0) | |
54105ddd | 1601 | ret = (int)readbytes; |
eda75751 MC |
1602 | |
1603 | return ret; | |
1604 | } | |
1605 | ||
4ee7d3f9 KR |
1606 | int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes) |
1607 | { | |
1608 | int ret = ssl_read_internal(s, buf, num, readbytes); | |
1609 | ||
1610 | if (ret < 0) | |
1611 | ret = 0; | |
1612 | return ret; | |
1613 | } | |
1614 | ||
f533fbd4 | 1615 | int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes) |
d781d247 MC |
1616 | { |
1617 | int ret; | |
1618 | ||
1619 | if (!s->server) { | |
f533fbd4 MC |
1620 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1621 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1622 | } |
1623 | ||
d781d247 MC |
1624 | switch (s->early_data_state) { |
1625 | case SSL_EARLY_DATA_NONE: | |
1626 | if (!SSL_in_before(s)) { | |
f533fbd4 MC |
1627 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, |
1628 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
1629 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1630 | } |
1631 | /* fall through */ | |
1632 | ||
1633 | case SSL_EARLY_DATA_ACCEPT_RETRY: | |
1634 | s->early_data_state = SSL_EARLY_DATA_ACCEPTING; | |
1635 | ret = SSL_accept(s); | |
1636 | if (ret <= 0) { | |
1637 | /* NBIO or error */ | |
1638 | s->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY; | |
f533fbd4 | 1639 | return SSL_READ_EARLY_DATA_ERROR; |
d781d247 MC |
1640 | } |
1641 | /* fall through */ | |
1642 | ||
1643 | case SSL_EARLY_DATA_READ_RETRY: | |
1644 | if (s->ext.early_data == SSL_EARLY_DATA_ACCEPTED) { | |
1645 | s->early_data_state = SSL_EARLY_DATA_READING; | |
1646 | ret = SSL_read_ex(s, buf, num, readbytes); | |
1647 | /* | |
ef6c191b MC |
1648 | * State machine will update early_data_state to |
1649 | * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData | |
1650 | * message | |
d781d247 MC |
1651 | */ |
1652 | if (ret > 0 || (ret <= 0 && s->early_data_state | |
1653 | != SSL_EARLY_DATA_FINISHED_READING)) { | |
1654 | s->early_data_state = SSL_EARLY_DATA_READ_RETRY; | |
f533fbd4 MC |
1655 | return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS |
1656 | : SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1657 | } |
1658 | } else { | |
1659 | s->early_data_state = SSL_EARLY_DATA_FINISHED_READING; | |
1660 | } | |
1661 | *readbytes = 0; | |
f533fbd4 | 1662 | return SSL_READ_EARLY_DATA_FINISH; |
d781d247 MC |
1663 | |
1664 | default: | |
f533fbd4 MC |
1665 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1666 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1667 | } |
1668 | } | |
1669 | ||
f5b519c4 | 1670 | int SSL_get_early_data_status(const SSL *s) |
1ea4d09a MC |
1671 | { |
1672 | return s->ext.early_data; | |
1673 | } | |
1674 | ||
4ee7d3f9 | 1675 | static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes) |
0f113f3e | 1676 | { |
c4c32155 | 1677 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1678 | SSLerr(SSL_F_SSL_PEEK_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1679 | return -1; |
1680 | } | |
1681 | ||
1682 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
4ee7d3f9 | 1683 | return 0; |
0f113f3e | 1684 | } |
e8aa8b6c | 1685 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1686 | struct ssl_async_args args; |
eda75751 | 1687 | int ret; |
0f113f3e | 1688 | |
add2f5ca MC |
1689 | args.s = s; |
1690 | args.buf = buf; | |
1691 | args.num = num; | |
ec447924 MC |
1692 | args.type = READFUNC; |
1693 | args.f.func_read = s->method->ssl_peek; | |
07bbc92c | 1694 | |
eda75751 | 1695 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
54105ddd | 1696 | *readbytes = s->asyncrw; |
eda75751 | 1697 | return ret; |
add2f5ca | 1698 | } else { |
54105ddd | 1699 | return s->method->ssl_peek(s, buf, num, readbytes); |
add2f5ca | 1700 | } |
07bbc92c MC |
1701 | } |
1702 | ||
4ee7d3f9 | 1703 | int SSL_peek(SSL *s, void *buf, int num) |
7ee8627f MC |
1704 | { |
1705 | int ret; | |
4ee7d3f9 | 1706 | size_t readbytes; |
7ee8627f MC |
1707 | |
1708 | if (num < 0) { | |
4ee7d3f9 | 1709 | SSLerr(SSL_F_SSL_PEEK, SSL_R_BAD_LENGTH); |
7ee8627f MC |
1710 | return -1; |
1711 | } | |
1712 | ||
4ee7d3f9 | 1713 | ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes); |
7ee8627f MC |
1714 | |
1715 | /* | |
1716 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1717 | * <= INT_MAX | |
1718 | */ | |
1719 | if (ret > 0) | |
4ee7d3f9 | 1720 | ret = (int)readbytes; |
7ee8627f MC |
1721 | |
1722 | return ret; | |
1723 | } | |
1724 | ||
4ee7d3f9 KR |
1725 | |
1726 | int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes) | |
1727 | { | |
1728 | int ret = ssl_peek_internal(s, buf, num, readbytes); | |
1729 | ||
1730 | if (ret < 0) | |
1731 | ret = 0; | |
1732 | return ret; | |
1733 | } | |
1734 | ||
1735 | int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written) | |
0f113f3e | 1736 | { |
c4c32155 | 1737 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1738 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1739 | return -1; |
1740 | } | |
1741 | ||
1742 | if (s->shutdown & SSL_SENT_SHUTDOWN) { | |
1743 | s->rwstate = SSL_NOTHING; | |
4ee7d3f9 KR |
1744 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_PROTOCOL_IS_SHUTDOWN); |
1745 | return -1; | |
0f113f3e | 1746 | } |
07bbc92c | 1747 | |
ef6c191b | 1748 | if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY |
09f28874 MC |
1749 | || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY |
1750 | || s->early_data_state == SSL_EARLY_DATA_READ_RETRY) { | |
0a5ece5b | 1751 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
49e7fe12 | 1752 | return 0; |
0a5ece5b | 1753 | } |
564547e4 MC |
1754 | /* If we are a client and haven't sent the Finished we better do that */ |
1755 | ossl_statem_check_finish_init(s, 1); | |
49e7fe12 | 1756 | |
e8aa8b6c | 1757 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
7ee8627f | 1758 | int ret; |
add2f5ca MC |
1759 | struct ssl_async_args args; |
1760 | ||
1761 | args.s = s; | |
1762 | args.buf = (void *)buf; | |
1763 | args.num = num; | |
ec447924 MC |
1764 | args.type = WRITEFUNC; |
1765 | args.f.func_write = s->method->ssl_write; | |
add2f5ca | 1766 | |
7ee8627f MC |
1767 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
1768 | *written = s->asyncrw; | |
1769 | return ret; | |
07bbc92c | 1770 | } else { |
7ee8627f | 1771 | return s->method->ssl_write(s, buf, num, written); |
07bbc92c | 1772 | } |
0f113f3e | 1773 | } |
d02b48c6 | 1774 | |
4ee7d3f9 KR |
1775 | int SSL_write(SSL *s, const void *buf, int num) |
1776 | { | |
1777 | int ret; | |
1778 | size_t written; | |
1779 | ||
1780 | if (num < 0) { | |
1781 | SSLerr(SSL_F_SSL_WRITE, SSL_R_BAD_LENGTH); | |
1782 | return -1; | |
1783 | } | |
1784 | ||
1785 | ret = ssl_write_internal(s, buf, (size_t)num, &written); | |
1786 | ||
1787 | /* | |
1788 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1789 | * <= INT_MAX | |
1790 | */ | |
1791 | if (ret > 0) | |
1792 | ret = (int)written; | |
1793 | ||
1794 | return ret; | |
1795 | } | |
1796 | ||
1797 | int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written) | |
1798 | { | |
1799 | int ret = ssl_write_internal(s, buf, num, written); | |
1800 | ||
1801 | if (ret < 0) | |
1802 | ret = 0; | |
1803 | return ret; | |
1804 | } | |
1805 | ||
0665b4ed | 1806 | int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written) |
49e7fe12 | 1807 | { |
a0cb628b | 1808 | int ret, early_data_state; |
49e7fe12 | 1809 | |
49e7fe12 MC |
1810 | switch (s->early_data_state) { |
1811 | case SSL_EARLY_DATA_NONE: | |
09f28874 MC |
1812 | if (s->server |
1813 | || !SSL_in_before(s) | |
0a5ece5b MC |
1814 | || s->session == NULL |
1815 | || s->session->ext.max_early_data == 0) { | |
09f28874 MC |
1816 | SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, |
1817 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
49e7fe12 MC |
1818 | return 0; |
1819 | } | |
1820 | /* fall through */ | |
1821 | ||
1822 | case SSL_EARLY_DATA_CONNECT_RETRY: | |
1823 | s->early_data_state = SSL_EARLY_DATA_CONNECTING; | |
1824 | ret = SSL_connect(s); | |
1825 | if (ret <= 0) { | |
1826 | /* NBIO or error */ | |
1827 | s->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY; | |
1828 | return 0; | |
1829 | } | |
1830 | /* fall through */ | |
1831 | ||
1832 | case SSL_EARLY_DATA_WRITE_RETRY: | |
1833 | s->early_data_state = SSL_EARLY_DATA_WRITING; | |
1834 | ret = SSL_write_ex(s, buf, num, written); | |
1835 | s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY; | |
1836 | return ret; | |
1837 | ||
116d0da5 | 1838 | case SSL_EARLY_DATA_FINISHED_READING: |
a0cb628b MC |
1839 | case SSL_EARLY_DATA_READ_RETRY: |
1840 | early_data_state = s->early_data_state; | |
09f28874 MC |
1841 | /* We are a server writing to an unauthenticated client */ |
1842 | s->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING; | |
1843 | ret = SSL_write_ex(s, buf, num, written); | |
bbea9f2c | 1844 | s->early_data_state = early_data_state; |
09f28874 MC |
1845 | return ret; |
1846 | ||
49e7fe12 | 1847 | default: |
09f28874 | 1848 | SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
49e7fe12 MC |
1849 | return 0; |
1850 | } | |
1851 | } | |
1852 | ||
4f43d0e7 | 1853 | int SSL_shutdown(SSL *s) |
0f113f3e MC |
1854 | { |
1855 | /* | |
1856 | * Note that this function behaves differently from what one might | |
1857 | * expect. Return values are 0 for no success (yet), 1 for success; but | |
1858 | * calling it once is usually not enough, even if blocking I/O is used | |
1859 | * (see ssl3_shutdown). | |
1860 | */ | |
1861 | ||
c4c32155 | 1862 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1863 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); |
1864 | return -1; | |
1865 | } | |
1866 | ||
64f9f406 | 1867 | if (!SSL_in_init(s)) { |
e8aa8b6c | 1868 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
64f9f406 | 1869 | struct ssl_async_args args; |
ec447924 | 1870 | |
64f9f406 MC |
1871 | args.s = s; |
1872 | args.type = OTHERFUNC; | |
1873 | args.f.func_other = s->method->ssl_shutdown; | |
ec447924 | 1874 | |
64f9f406 MC |
1875 | return ssl_start_async_job(s, &args, ssl_io_intern); |
1876 | } else { | |
1877 | return s->method->ssl_shutdown(s); | |
1878 | } | |
ec447924 | 1879 | } else { |
64f9f406 MC |
1880 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT); |
1881 | return -1; | |
ec447924 | 1882 | } |
0f113f3e | 1883 | } |
d02b48c6 | 1884 | |
4fbfe86a | 1885 | int SSL_key_update(SSL *s, int updatetype) |
44c04a2e | 1886 | { |
f14afcaa | 1887 | /* |
a9998e2f | 1888 | * TODO(TLS1.3): How will applications know whether TLSv1.3 has been |
f14afcaa MC |
1889 | * negotiated, and that it is appropriate to call SSL_key_update() instead |
1890 | * of SSL_renegotiate(). | |
1891 | */ | |
44c04a2e MC |
1892 | if (!SSL_IS_TLS13(s)) { |
1893 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_WRONG_SSL_VERSION); | |
1894 | return 0; | |
1895 | } | |
1896 | ||
1897 | if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED | |
1898 | && updatetype != SSL_KEY_UPDATE_REQUESTED) { | |
1899 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_INVALID_KEY_UPDATE_TYPE); | |
1900 | return 0; | |
1901 | } | |
1902 | ||
1903 | if (!SSL_is_init_finished(s)) { | |
1904 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_STILL_IN_INIT); | |
1905 | return 0; | |
1906 | } | |
1907 | ||
1908 | ossl_statem_set_in_init(s, 1); | |
44c04a2e | 1909 | s->key_update = updatetype; |
44c04a2e MC |
1910 | return 1; |
1911 | } | |
1912 | ||
4fbfe86a | 1913 | int SSL_get_key_update_type(SSL *s) |
53d1d07d MC |
1914 | { |
1915 | return s->key_update; | |
1916 | } | |
1917 | ||
4f43d0e7 | 1918 | int SSL_renegotiate(SSL *s) |
0f113f3e | 1919 | { |
44c04a2e MC |
1920 | if (SSL_IS_TLS13(s)) { |
1921 | SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_WRONG_SSL_VERSION); | |
2c0980d2 | 1922 | return 0; |
44c04a2e | 1923 | } |
cda6b998 | 1924 | |
0f113f3e MC |
1925 | if (s->renegotiate == 0) |
1926 | s->renegotiate = 1; | |
44959ee4 | 1927 | |
0f113f3e | 1928 | s->new_session = 1; |
44959ee4 | 1929 | |
0f113f3e MC |
1930 | return (s->method->ssl_renegotiate(s)); |
1931 | } | |
d02b48c6 | 1932 | |
44959ee4 | 1933 | int SSL_renegotiate_abbreviated(SSL *s) |
0f113f3e | 1934 | { |
cda6b998 | 1935 | if (SSL_IS_TLS13(s)) |
2c0980d2 | 1936 | return 0; |
cda6b998 | 1937 | |
0f113f3e MC |
1938 | if (s->renegotiate == 0) |
1939 | s->renegotiate = 1; | |
c519e89f | 1940 | |
0f113f3e | 1941 | s->new_session = 0; |
c519e89f | 1942 | |
0f113f3e MC |
1943 | return (s->method->ssl_renegotiate(s)); |
1944 | } | |
44959ee4 | 1945 | |
6b0e9fac | 1946 | int SSL_renegotiate_pending(SSL *s) |
0f113f3e MC |
1947 | { |
1948 | /* | |
1949 | * becomes true when negotiation is requested; false again once a | |
1950 | * handshake has finished | |
1951 | */ | |
1952 | return (s->renegotiate != 0); | |
1953 | } | |
1954 | ||
1955 | long SSL_ctrl(SSL *s, int cmd, long larg, void *parg) | |
1956 | { | |
1957 | long l; | |
1958 | ||
1959 | switch (cmd) { | |
1960 | case SSL_CTRL_GET_READ_AHEAD: | |
52e1d7b1 | 1961 | return (RECORD_LAYER_get_read_ahead(&s->rlayer)); |
0f113f3e | 1962 | case SSL_CTRL_SET_READ_AHEAD: |
52e1d7b1 MC |
1963 | l = RECORD_LAYER_get_read_ahead(&s->rlayer); |
1964 | RECORD_LAYER_set_read_ahead(&s->rlayer, larg); | |
0f113f3e MC |
1965 | return (l); |
1966 | ||
1967 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
1968 | s->msg_callback_arg = parg; | |
1969 | return 1; | |
1970 | ||
0f113f3e MC |
1971 | case SSL_CTRL_MODE: |
1972 | return (s->mode |= larg); | |
1973 | case SSL_CTRL_CLEAR_MODE: | |
1974 | return (s->mode &= ~larg); | |
1975 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
348240c6 | 1976 | return (long)(s->max_cert_list); |
0f113f3e | 1977 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
1978 | if (larg < 0) |
1979 | return 0; | |
1980 | l = (long)s->max_cert_list; | |
1981 | s->max_cert_list = (size_t)larg; | |
1982 | return l; | |
0f113f3e MC |
1983 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: |
1984 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
1985 | return 0; | |
1986 | s->max_send_fragment = larg; | |
d102d9df MC |
1987 | if (s->max_send_fragment < s->split_send_fragment) |
1988 | s->split_send_fragment = s->max_send_fragment; | |
1989 | return 1; | |
1990 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: | |
7ee8627f | 1991 | if ((size_t)larg > s->max_send_fragment || larg == 0) |
d102d9df MC |
1992 | return 0; |
1993 | s->split_send_fragment = larg; | |
0f113f3e | 1994 | return 1; |
d102d9df MC |
1995 | case SSL_CTRL_SET_MAX_PIPELINES: |
1996 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
1997 | return 0; | |
1998 | s->max_pipelines = larg; | |
94777c9c MC |
1999 | if (larg > 1) |
2000 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
07077415 | 2001 | return 1; |
0f113f3e MC |
2002 | case SSL_CTRL_GET_RI_SUPPORT: |
2003 | if (s->s3) | |
2004 | return s->s3->send_connection_binding; | |
2005 | else | |
2006 | return 0; | |
2007 | case SSL_CTRL_CERT_FLAGS: | |
2008 | return (s->cert->cert_flags |= larg); | |
2009 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
2010 | return (s->cert->cert_flags &= ~larg); | |
2011 | ||
2012 | case SSL_CTRL_GET_RAW_CIPHERLIST: | |
2013 | if (parg) { | |
76106e60 | 2014 | if (s->s3->tmp.ciphers_raw == NULL) |
0f113f3e | 2015 | return 0; |
76106e60 DSH |
2016 | *(unsigned char **)parg = s->s3->tmp.ciphers_raw; |
2017 | return (int)s->s3->tmp.ciphers_rawlen; | |
e9fa092e EK |
2018 | } else { |
2019 | return TLS_CIPHER_LEN; | |
2020 | } | |
c5364614 | 2021 | case SSL_CTRL_GET_EXTMS_SUPPORT: |
024f543c | 2022 | if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s)) |
a230b26e | 2023 | return -1; |
dccd20d1 | 2024 | if (s->session->flags & SSL_SESS_FLAG_EXTMS) |
c5364614 DSH |
2025 | return 1; |
2026 | else | |
2027 | return 0; | |
7946ab33 | 2028 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
4fa52141 VD |
2029 | return ssl_set_version_bound(s->ctx->method->version, (int)larg, |
2030 | &s->min_proto_version); | |
7946ab33 | 2031 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
4fa52141 VD |
2032 | return ssl_set_version_bound(s->ctx->method->version, (int)larg, |
2033 | &s->max_proto_version); | |
0f113f3e MC |
2034 | default: |
2035 | return (s->method->ssl_ctrl(s, cmd, larg, parg)); | |
2036 | } | |
2037 | } | |
2038 | ||
2039 | long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
2040 | { | |
2041 | switch (cmd) { | |
2042 | case SSL_CTRL_SET_MSG_CALLBACK: | |
2043 | s->msg_callback = (void (*) | |
2044 | (int write_p, int version, int content_type, | |
2045 | const void *buf, size_t len, SSL *ssl, | |
2046 | void *arg))(fp); | |
2047 | return 1; | |
2048 | ||
2049 | default: | |
2050 | return (s->method->ssl_callback_ctrl(s, cmd, fp)); | |
2051 | } | |
2052 | } | |
d3442bc7 | 2053 | |
3c1d6bbc | 2054 | LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx) |
0f113f3e MC |
2055 | { |
2056 | return ctx->sessions; | |
2057 | } | |
2058 | ||
2059 | long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
2060 | { | |
2061 | long l; | |
2062 | /* For some cases with ctx == NULL perform syntax checks */ | |
2063 | if (ctx == NULL) { | |
2064 | switch (cmd) { | |
14536c8c | 2065 | #ifndef OPENSSL_NO_EC |
de4d764e MC |
2066 | case SSL_CTRL_SET_GROUPS_LIST: |
2067 | return tls1_set_groups_list(NULL, NULL, parg); | |
0f113f3e MC |
2068 | #endif |
2069 | case SSL_CTRL_SET_SIGALGS_LIST: | |
2070 | case SSL_CTRL_SET_CLIENT_SIGALGS_LIST: | |
2071 | return tls1_set_sigalgs_list(NULL, parg, 0); | |
2072 | default: | |
2073 | return 0; | |
2074 | } | |
2075 | } | |
2076 | ||
2077 | switch (cmd) { | |
2078 | case SSL_CTRL_GET_READ_AHEAD: | |
2079 | return (ctx->read_ahead); | |
2080 | case SSL_CTRL_SET_READ_AHEAD: | |
2081 | l = ctx->read_ahead; | |
2082 | ctx->read_ahead = larg; | |
2083 | return (l); | |
2084 | ||
2085 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
2086 | ctx->msg_callback_arg = parg; | |
2087 | return 1; | |
2088 | ||
2089 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
348240c6 | 2090 | return (long)(ctx->max_cert_list); |
0f113f3e | 2091 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
2092 | if (larg < 0) |
2093 | return 0; | |
2094 | l = (long)ctx->max_cert_list; | |
2095 | ctx->max_cert_list = (size_t)larg; | |
2096 | return l; | |
0f113f3e MC |
2097 | |
2098 | case SSL_CTRL_SET_SESS_CACHE_SIZE: | |
348240c6 MC |
2099 | if (larg < 0) |
2100 | return 0; | |
2101 | l = (long)ctx->session_cache_size; | |
2102 | ctx->session_cache_size = (size_t)larg; | |
2103 | return l; | |
0f113f3e | 2104 | case SSL_CTRL_GET_SESS_CACHE_SIZE: |
348240c6 | 2105 | return (long)(ctx->session_cache_size); |
0f113f3e MC |
2106 | case SSL_CTRL_SET_SESS_CACHE_MODE: |
2107 | l = ctx->session_cache_mode; | |
2108 | ctx->session_cache_mode = larg; | |
2109 | return (l); | |
2110 | case SSL_CTRL_GET_SESS_CACHE_MODE: | |
2111 | return (ctx->session_cache_mode); | |
2112 | ||
2113 | case SSL_CTRL_SESS_NUMBER: | |
2114 | return (lh_SSL_SESSION_num_items(ctx->sessions)); | |
2115 | case SSL_CTRL_SESS_CONNECT: | |
2116 | return (ctx->stats.sess_connect); | |
2117 | case SSL_CTRL_SESS_CONNECT_GOOD: | |
2118 | return (ctx->stats.sess_connect_good); | |
2119 | case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: | |
2120 | return (ctx->stats.sess_connect_renegotiate); | |
2121 | case SSL_CTRL_SESS_ACCEPT: | |
2122 | return (ctx->stats.sess_accept); | |
2123 | case SSL_CTRL_SESS_ACCEPT_GOOD: | |
2124 | return (ctx->stats.sess_accept_good); | |
2125 | case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: | |
2126 | return (ctx->stats.sess_accept_renegotiate); | |
2127 | case SSL_CTRL_SESS_HIT: | |
2128 | return (ctx->stats.sess_hit); | |
2129 | case SSL_CTRL_SESS_CB_HIT: | |
2130 | return (ctx->stats.sess_cb_hit); | |
2131 | case SSL_CTRL_SESS_MISSES: | |
2132 | return (ctx->stats.sess_miss); | |
2133 | case SSL_CTRL_SESS_TIMEOUTS: | |
2134 | return (ctx->stats.sess_timeout); | |
2135 | case SSL_CTRL_SESS_CACHE_FULL: | |
2136 | return (ctx->stats.sess_cache_full); | |
0f113f3e MC |
2137 | case SSL_CTRL_MODE: |
2138 | return (ctx->mode |= larg); | |
2139 | case SSL_CTRL_CLEAR_MODE: | |
2140 | return (ctx->mode &= ~larg); | |
2141 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
2142 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
2143 | return 0; | |
2144 | ctx->max_send_fragment = larg; | |
d102d9df | 2145 | if (ctx->max_send_fragment < ctx->split_send_fragment) |
bfb155c1 | 2146 | ctx->split_send_fragment = ctx->max_send_fragment; |
0f113f3e | 2147 | return 1; |
d102d9df | 2148 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: |
7ee8627f | 2149 | if ((size_t)larg > ctx->max_send_fragment || larg == 0) |
d102d9df MC |
2150 | return 0; |
2151 | ctx->split_send_fragment = larg; | |
2152 | return 1; | |
2153 | case SSL_CTRL_SET_MAX_PIPELINES: | |
2154 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
2155 | return 0; | |
2156 | ctx->max_pipelines = larg; | |
07077415 | 2157 | return 1; |
0f113f3e MC |
2158 | case SSL_CTRL_CERT_FLAGS: |
2159 | return (ctx->cert->cert_flags |= larg); | |
2160 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
2161 | return (ctx->cert->cert_flags &= ~larg); | |
7946ab33 | 2162 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
4fa52141 VD |
2163 | return ssl_set_version_bound(ctx->method->version, (int)larg, |
2164 | &ctx->min_proto_version); | |
7946ab33 | 2165 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
4fa52141 VD |
2166 | return ssl_set_version_bound(ctx->method->version, (int)larg, |
2167 | &ctx->max_proto_version); | |
0f113f3e MC |
2168 | default: |
2169 | return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg)); | |
2170 | } | |
2171 | } | |
2172 | ||
2173 | long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
2174 | { | |
2175 | switch (cmd) { | |
2176 | case SSL_CTRL_SET_MSG_CALLBACK: | |
2177 | ctx->msg_callback = (void (*) | |
2178 | (int write_p, int version, int content_type, | |
2179 | const void *buf, size_t len, SSL *ssl, | |
2180 | void *arg))(fp); | |
2181 | return 1; | |
2182 | ||
2183 | default: | |
2184 | return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp)); | |
2185 | } | |
2186 | } | |
d3442bc7 | 2187 | |
ccd86b68 | 2188 | int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) |
0f113f3e | 2189 | { |
90d9e49a DSH |
2190 | if (a->id > b->id) |
2191 | return 1; | |
2192 | if (a->id < b->id) | |
2193 | return -1; | |
2194 | return 0; | |
0f113f3e MC |
2195 | } |
2196 | ||
2197 | int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, | |
2198 | const SSL_CIPHER *const *bp) | |
2199 | { | |
90d9e49a DSH |
2200 | if ((*ap)->id > (*bp)->id) |
2201 | return 1; | |
2202 | if ((*ap)->id < (*bp)->id) | |
2203 | return -1; | |
2204 | return 0; | |
0f113f3e | 2205 | } |
d02b48c6 | 2206 | |
4f43d0e7 | 2207 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2208 | * preference */ |
0821bcd4 | 2209 | STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) |
0f113f3e MC |
2210 | { |
2211 | if (s != NULL) { | |
2212 | if (s->cipher_list != NULL) { | |
2213 | return (s->cipher_list); | |
2214 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { | |
2215 | return (s->ctx->cipher_list); | |
2216 | } | |
2217 | } | |
2218 | return (NULL); | |
2219 | } | |
2220 | ||
831eef2c NM |
2221 | STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s) |
2222 | { | |
2223 | if ((s == NULL) || (s->session == NULL) || !s->server) | |
2224 | return NULL; | |
2225 | return s->session->ciphers; | |
2226 | } | |
2227 | ||
8b8e5bed | 2228 | STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s) |
0f113f3e MC |
2229 | { |
2230 | STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers; | |
2231 | int i; | |
2232 | ciphers = SSL_get_ciphers(s); | |
2233 | if (!ciphers) | |
2234 | return NULL; | |
2235 | ssl_set_client_disabled(s); | |
2236 | for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { | |
2237 | const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i); | |
8af91fd9 | 2238 | if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) { |
0f113f3e MC |
2239 | if (!sk) |
2240 | sk = sk_SSL_CIPHER_new_null(); | |
2241 | if (!sk) | |
2242 | return NULL; | |
2243 | if (!sk_SSL_CIPHER_push(sk, c)) { | |
2244 | sk_SSL_CIPHER_free(sk); | |
2245 | return NULL; | |
2246 | } | |
2247 | } | |
2248 | } | |
2249 | return sk; | |
2250 | } | |
8b8e5bed | 2251 | |
4f43d0e7 | 2252 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2253 | * algorithm id */ |
f73e07cf | 2254 | STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) |
0f113f3e MC |
2255 | { |
2256 | if (s != NULL) { | |
2257 | if (s->cipher_list_by_id != NULL) { | |
2258 | return (s->cipher_list_by_id); | |
2259 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) { | |
2260 | return (s->ctx->cipher_list_by_id); | |
2261 | } | |
2262 | } | |
2263 | return (NULL); | |
2264 | } | |
d02b48c6 | 2265 | |
4f43d0e7 | 2266 | /** The old interface to get the same thing as SSL_get_ciphers() */ |
0f113f3e MC |
2267 | const char *SSL_get_cipher_list(const SSL *s, int n) |
2268 | { | |
4a640fb6 | 2269 | const SSL_CIPHER *c; |
0f113f3e MC |
2270 | STACK_OF(SSL_CIPHER) *sk; |
2271 | ||
2272 | if (s == NULL) | |
2273 | return (NULL); | |
2274 | sk = SSL_get_ciphers(s); | |
2275 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) | |
2276 | return (NULL); | |
2277 | c = sk_SSL_CIPHER_value(sk, n); | |
2278 | if (c == NULL) | |
2279 | return (NULL); | |
2280 | return (c->name); | |
2281 | } | |
d02b48c6 | 2282 | |
9d5ac953 KY |
2283 | /** return a STACK of the ciphers available for the SSL_CTX and in order of |
2284 | * preference */ | |
2285 | STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx) | |
2286 | { | |
2287 | if (ctx != NULL) | |
2288 | return ctx->cipher_list; | |
2289 | return NULL; | |
2290 | } | |
2291 | ||
25f923dd | 2292 | /** specify the ciphers to be used by default by the SSL_CTX */ |
018e57c7 | 2293 | int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) |
0f113f3e MC |
2294 | { |
2295 | STACK_OF(SSL_CIPHER) *sk; | |
2296 | ||
2297 | sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, | |
2298 | &ctx->cipher_list_by_id, str, ctx->cert); | |
2299 | /* | |
2300 | * ssl_create_cipher_list may return an empty stack if it was unable to | |
2301 | * find a cipher matching the given rule string (for example if the rule | |
2302 | * string specifies a cipher which has been disabled). This is not an | |
2303 | * error as far as ssl_create_cipher_list is concerned, and hence | |
2304 | * ctx->cipher_list and ctx->cipher_list_by_id has been updated. | |
2305 | */ | |
2306 | if (sk == NULL) | |
2307 | return 0; | |
2308 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2309 | SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2310 | return 0; | |
2311 | } | |
2312 | return 1; | |
2313 | } | |
d02b48c6 | 2314 | |
4f43d0e7 | 2315 | /** specify the ciphers to be used by the SSL */ |
0f113f3e MC |
2316 | int SSL_set_cipher_list(SSL *s, const char *str) |
2317 | { | |
2318 | STACK_OF(SSL_CIPHER) *sk; | |
2319 | ||
2320 | sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, | |
2321 | &s->cipher_list_by_id, str, s->cert); | |
2322 | /* see comment in SSL_CTX_set_cipher_list */ | |
2323 | if (sk == NULL) | |
2324 | return 0; | |
2325 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2326 | SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2327 | return 0; | |
2328 | } | |
2329 | return 1; | |
2330 | } | |
d02b48c6 | 2331 | |
0f113f3e MC |
2332 | char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len) |
2333 | { | |
2334 | char *p; | |
2335 | STACK_OF(SSL_CIPHER) *sk; | |
4a640fb6 | 2336 | const SSL_CIPHER *c; |
0f113f3e MC |
2337 | int i; |
2338 | ||
2339 | if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2)) | |
2340 | return (NULL); | |
2341 | ||
2342 | p = buf; | |
2343 | sk = s->session->ciphers; | |
2344 | ||
2345 | if (sk_SSL_CIPHER_num(sk) == 0) | |
2346 | return NULL; | |
2347 | ||
2348 | for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { | |
2349 | int n; | |
2350 | ||
2351 | c = sk_SSL_CIPHER_value(sk, i); | |
2352 | n = strlen(c->name); | |
2353 | if (n + 1 > len) { | |
2354 | if (p != buf) | |
2355 | --p; | |
2356 | *p = '\0'; | |
2357 | return buf; | |
2358 | } | |
a89c9a0d | 2359 | memcpy(p, c->name, n + 1); |
0f113f3e MC |
2360 | p += n; |
2361 | *(p++) = ':'; | |
2362 | len -= n + 1; | |
2363 | } | |
2364 | p[-1] = '\0'; | |
2365 | return (buf); | |
2366 | } | |
2367 | ||
52b8dad8 | 2368 | /** return a servername extension value if provided in Client Hello, or NULL. |
f1fd4544 | 2369 | * So far, only host_name types are defined (RFC 3546). |
ed3883d2 BM |
2370 | */ |
2371 | ||
f1fd4544 | 2372 | const char *SSL_get_servername(const SSL *s, const int type) |
0f113f3e MC |
2373 | { |
2374 | if (type != TLSEXT_NAMETYPE_host_name) | |
2375 | return NULL; | |
a13c20f6 | 2376 | |
aff8c126 RS |
2377 | return s->session && !s->ext.hostname ? |
2378 | s->session->ext.hostname : s->ext.hostname; | |
0f113f3e | 2379 | } |
ed3883d2 | 2380 | |
f1fd4544 | 2381 | int SSL_get_servername_type(const SSL *s) |
0f113f3e MC |
2382 | { |
2383 | if (s->session | |
aff8c126 RS |
2384 | && (!s->ext.hostname ? s->session-> |
2385 | ext.hostname : s->ext.hostname)) | |
0f113f3e MC |
2386 | return TLSEXT_NAMETYPE_host_name; |
2387 | return -1; | |
2388 | } | |
ee2ffc27 | 2389 | |
0f113f3e MC |
2390 | /* |
2391 | * SSL_select_next_proto implements the standard protocol selection. It is | |
ee2ffc27 | 2392 | * expected that this function is called from the callback set by |
0f113f3e MC |
2393 | * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a |
2394 | * vector of 8-bit, length prefixed byte strings. The length byte itself is | |
2395 | * not included in the length. A byte string of length 0 is invalid. No byte | |
2396 | * string may be truncated. The current, but experimental algorithm for | |
2397 | * selecting the protocol is: 1) If the server doesn't support NPN then this | |
2398 | * is indicated to the callback. In this case, the client application has to | |
2399 | * abort the connection or have a default application level protocol. 2) If | |
2400 | * the server supports NPN, but advertises an empty list then the client | |
f430ba31 | 2401 | * selects the first protocol in its list, but indicates via the API that this |
0f113f3e MC |
2402 | * fallback case was enacted. 3) Otherwise, the client finds the first |
2403 | * protocol in the server's list that it supports and selects this protocol. | |
2404 | * This is because it's assumed that the server has better information about | |
2405 | * which protocol a client should use. 4) If the client doesn't support any | |
2406 | * of the server's advertised protocols, then this is treated the same as | |
2407 | * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was | |
2408 | * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. | |
ee2ffc27 | 2409 | */ |
0f113f3e MC |
2410 | int SSL_select_next_proto(unsigned char **out, unsigned char *outlen, |
2411 | const unsigned char *server, | |
2412 | unsigned int server_len, | |
a230b26e | 2413 | const unsigned char *client, unsigned int client_len) |
0f113f3e MC |
2414 | { |
2415 | unsigned int i, j; | |
2416 | const unsigned char *result; | |
2417 | int status = OPENSSL_NPN_UNSUPPORTED; | |
2418 | ||
2419 | /* | |
2420 | * For each protocol in server preference order, see if we support it. | |
2421 | */ | |
2422 | for (i = 0; i < server_len;) { | |
2423 | for (j = 0; j < client_len;) { | |
2424 | if (server[i] == client[j] && | |
2425 | memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) { | |
2426 | /* We found a match */ | |
2427 | result = &server[i]; | |
2428 | status = OPENSSL_NPN_NEGOTIATED; | |
2429 | goto found; | |
2430 | } | |
2431 | j += client[j]; | |
2432 | j++; | |
2433 | } | |
2434 | i += server[i]; | |
2435 | i++; | |
2436 | } | |
2437 | ||
2438 | /* There's no overlap between our protocols and the server's list. */ | |
2439 | result = client; | |
2440 | status = OPENSSL_NPN_NO_OVERLAP; | |
2441 | ||
2442 | found: | |
2443 | *out = (unsigned char *)result + 1; | |
2444 | *outlen = result[0]; | |
2445 | return status; | |
2446 | } | |
ee2ffc27 | 2447 | |
e481f9b9 | 2448 | #ifndef OPENSSL_NO_NEXTPROTONEG |
0f113f3e MC |
2449 | /* |
2450 | * SSL_get0_next_proto_negotiated sets *data and *len to point to the | |
2451 | * client's requested protocol for this connection and returns 0. If the | |
2452 | * client didn't request any protocol, then *data is set to NULL. Note that | |
2453 | * the client can request any protocol it chooses. The value returned from | |
2454 | * this function need not be a member of the list of supported protocols | |
ee2ffc27 BL |
2455 | * provided by the callback. |
2456 | */ | |
0f113f3e MC |
2457 | void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, |
2458 | unsigned *len) | |
2459 | { | |
aff8c126 | 2460 | *data = s->ext.npn; |
0f113f3e MC |
2461 | if (!*data) { |
2462 | *len = 0; | |
2463 | } else { | |
aff8c126 | 2464 | *len = (unsigned int)s->ext.npn_len; |
0f113f3e MC |
2465 | } |
2466 | } | |
2467 | ||
2468 | /* | |
aff8c126 | 2469 | * SSL_CTX_set_npn_advertised_cb sets a callback that is called when |
0f113f3e MC |
2470 | * a TLS server needs a list of supported protocols for Next Protocol |
2471 | * Negotiation. The returned list must be in wire format. The list is | |
2472 | * returned by setting |out| to point to it and |outlen| to its length. This | |
2473 | * memory will not be modified, but one should assume that the SSL* keeps a | |
2474 | * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it | |
2475 | * wishes to advertise. Otherwise, no such extension will be included in the | |
2476 | * ServerHello. | |
2477 | */ | |
aff8c126 | 2478 | void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx, |
8cbfcc70 | 2479 | SSL_CTX_npn_advertised_cb_func cb, |
aff8c126 | 2480 | void *arg) |
0f113f3e | 2481 | { |
aff8c126 RS |
2482 | ctx->ext.npn_advertised_cb = cb; |
2483 | ctx->ext.npn_advertised_cb_arg = arg; | |
0f113f3e MC |
2484 | } |
2485 | ||
2486 | /* | |
2487 | * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a | |
ee2ffc27 BL |
2488 | * client needs to select a protocol from the server's provided list. |out| |
2489 | * must be set to point to the selected protocol (which may be within |in|). | |
0f113f3e MC |
2490 | * The length of the protocol name must be written into |outlen|. The |
2491 | * server's advertised protocols are provided in |in| and |inlen|. The | |
2492 | * callback can assume that |in| is syntactically valid. The client must | |
2493 | * select a protocol. It is fatal to the connection if this callback returns | |
2494 | * a value other than SSL_TLSEXT_ERR_OK. | |
ee2ffc27 | 2495 | */ |
aff8c126 | 2496 | void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx, |
8cbfcc70 | 2497 | SSL_CTX_npn_select_cb_func cb, |
aff8c126 | 2498 | void *arg) |
0f113f3e | 2499 | { |
aff8c126 RS |
2500 | ctx->ext.npn_select_cb = cb; |
2501 | ctx->ext.npn_select_cb_arg = arg; | |
0f113f3e | 2502 | } |
e481f9b9 | 2503 | #endif |
a398f821 | 2504 | |
0f113f3e MC |
2505 | /* |
2506 | * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|. | |
6f017a8f | 2507 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2508 | * length-prefixed strings). Returns 0 on success. |
2509 | */ | |
2510 | int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, | |
817cd0d5 | 2511 | unsigned int protos_len) |
0f113f3e | 2512 | { |
aff8c126 RS |
2513 | OPENSSL_free(ctx->ext.alpn); |
2514 | ctx->ext.alpn = OPENSSL_memdup(protos, protos_len); | |
2515 | if (ctx->ext.alpn == NULL) { | |
72e9be3d | 2516 | SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); |
0f113f3e | 2517 | return 1; |
72e9be3d | 2518 | } |
aff8c126 | 2519 | ctx->ext.alpn_len = protos_len; |
0f113f3e MC |
2520 | |
2521 | return 0; | |
2522 | } | |
2523 | ||
2524 | /* | |
2525 | * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|. | |
6f017a8f | 2526 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2527 | * length-prefixed strings). Returns 0 on success. |
2528 | */ | |
2529 | int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, | |
817cd0d5 | 2530 | unsigned int protos_len) |
0f113f3e | 2531 | { |
aff8c126 RS |
2532 | OPENSSL_free(ssl->ext.alpn); |
2533 | ssl->ext.alpn = OPENSSL_memdup(protos, protos_len); | |
2534 | if (ssl->ext.alpn == NULL) { | |
72e9be3d | 2535 | SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); |
0f113f3e | 2536 | return 1; |
72e9be3d | 2537 | } |
aff8c126 | 2538 | ssl->ext.alpn_len = protos_len; |
0f113f3e MC |
2539 | |
2540 | return 0; | |
2541 | } | |
2542 | ||
2543 | /* | |
2544 | * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is | |
2545 | * called during ClientHello processing in order to select an ALPN protocol | |
2546 | * from the client's list of offered protocols. | |
2547 | */ | |
2548 | void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx, | |
8cbfcc70 RS |
2549 | SSL_CTX_alpn_select_cb_func cb, |
2550 | void *arg) | |
0f113f3e | 2551 | { |
aff8c126 RS |
2552 | ctx->ext.alpn_select_cb = cb; |
2553 | ctx->ext.alpn_select_cb_arg = arg; | |
0f113f3e MC |
2554 | } |
2555 | ||
2556 | /* | |
69687aa8 F |
2557 | * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|. |
2558 | * On return it sets |*data| to point to |*len| bytes of protocol name | |
0f113f3e MC |
2559 | * (not including the leading length-prefix byte). If the server didn't |
2560 | * respond with a negotiated protocol then |*len| will be zero. | |
2561 | */ | |
6f017a8f | 2562 | void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, |
817cd0d5 | 2563 | unsigned int *len) |
0f113f3e MC |
2564 | { |
2565 | *data = NULL; | |
2566 | if (ssl->s3) | |
2567 | *data = ssl->s3->alpn_selected; | |
2568 | if (*data == NULL) | |
2569 | *len = 0; | |
2570 | else | |
348240c6 | 2571 | *len = (unsigned int)ssl->s3->alpn_selected_len; |
0f113f3e MC |
2572 | } |
2573 | ||
74b4b494 | 2574 | int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, |
0f113f3e MC |
2575 | const char *label, size_t llen, |
2576 | const unsigned char *p, size_t plen, | |
2577 | int use_context) | |
2578 | { | |
c8a18468 | 2579 | if (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER) |
0f113f3e | 2580 | return -1; |
e0af0405 | 2581 | |
0f113f3e MC |
2582 | return s->method->ssl3_enc->export_keying_material(s, out, olen, label, |
2583 | llen, p, plen, | |
2584 | use_context); | |
2585 | } | |
e0af0405 | 2586 | |
3c1d6bbc | 2587 | static unsigned long ssl_session_hash(const SSL_SESSION *a) |
0f113f3e | 2588 | { |
bd5d27c1 | 2589 | const unsigned char *session_id = a->session_id; |
0f113f3e | 2590 | unsigned long l; |
bd5d27c1 DB |
2591 | unsigned char tmp_storage[4]; |
2592 | ||
2593 | if (a->session_id_length < sizeof(tmp_storage)) { | |
2594 | memset(tmp_storage, 0, sizeof(tmp_storage)); | |
2595 | memcpy(tmp_storage, a->session_id, a->session_id_length); | |
2596 | session_id = tmp_storage; | |
2597 | } | |
0f113f3e MC |
2598 | |
2599 | l = (unsigned long) | |
bd5d27c1 DB |
2600 | ((unsigned long)session_id[0]) | |
2601 | ((unsigned long)session_id[1] << 8L) | | |
2602 | ((unsigned long)session_id[2] << 16L) | | |
2603 | ((unsigned long)session_id[3] << 24L); | |
0f113f3e MC |
2604 | return (l); |
2605 | } | |
2606 | ||
2607 | /* | |
2608 | * NB: If this function (or indeed the hash function which uses a sort of | |
dc644fe2 | 2609 | * coarser function than this one) is changed, ensure |
0f113f3e MC |
2610 | * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on |
2611 | * being able to construct an SSL_SESSION that will collide with any existing | |
2612 | * session with a matching session ID. | |
2613 | */ | |
2614 | static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) | |
2615 | { | |
2616 | if (a->ssl_version != b->ssl_version) | |
2617 | return (1); | |
2618 | if (a->session_id_length != b->session_id_length) | |
2619 | return (1); | |
2620 | return (memcmp(a->session_id, b->session_id, a->session_id_length)); | |
2621 | } | |
2622 | ||
2623 | /* | |
2624 | * These wrapper functions should remain rather than redeclaring | |
d0fa136c | 2625 | * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each |
0f113f3e MC |
2626 | * variable. The reason is that the functions aren't static, they're exposed |
2627 | * via ssl.h. | |
2628 | */ | |
97b17195 | 2629 | |
4ebb342f | 2630 | SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth) |
0f113f3e MC |
2631 | { |
2632 | SSL_CTX *ret = NULL; | |
2633 | ||
2634 | if (meth == NULL) { | |
2635 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED); | |
2636 | return (NULL); | |
2637 | } | |
2638 | ||
0fc32b07 MC |
2639 | if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL)) |
2640 | return NULL; | |
7fa792d1 | 2641 | |
0f113f3e MC |
2642 | if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { |
2643 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); | |
2644 | goto err; | |
2645 | } | |
b51bce94 | 2646 | ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e MC |
2647 | if (ret == NULL) |
2648 | goto err; | |
2649 | ||
0f113f3e | 2650 | ret->method = meth; |
7946ab33 KR |
2651 | ret->min_proto_version = 0; |
2652 | ret->max_proto_version = 0; | |
0f113f3e MC |
2653 | ret->session_cache_mode = SSL_SESS_CACHE_SERVER; |
2654 | ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; | |
64b25758 | 2655 | /* We take the system default. */ |
0f113f3e | 2656 | ret->session_timeout = meth->get_timeout(); |
0f113f3e | 2657 | ret->references = 1; |
16203f7b AG |
2658 | ret->lock = CRYPTO_THREAD_lock_new(); |
2659 | if (ret->lock == NULL) { | |
2660 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2661 | OPENSSL_free(ret); | |
2662 | return NULL; | |
2663 | } | |
0f113f3e | 2664 | ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; |
0f113f3e | 2665 | ret->verify_mode = SSL_VERIFY_NONE; |
0f113f3e MC |
2666 | if ((ret->cert = ssl_cert_new()) == NULL) |
2667 | goto err; | |
2668 | ||
62d0577e | 2669 | ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp); |
0f113f3e MC |
2670 | if (ret->sessions == NULL) |
2671 | goto err; | |
2672 | ret->cert_store = X509_STORE_new(); | |
2673 | if (ret->cert_store == NULL) | |
2674 | goto err; | |
ed29e82a RP |
2675 | #ifndef OPENSSL_NO_CT |
2676 | ret->ctlog_store = CTLOG_STORE_new(); | |
2677 | if (ret->ctlog_store == NULL) | |
2678 | goto err; | |
2679 | #endif | |
61986d32 | 2680 | if (!ssl_create_cipher_list(ret->method, |
a230b26e EK |
2681 | &ret->cipher_list, &ret->cipher_list_by_id, |
2682 | SSL_DEFAULT_CIPHER_LIST, ret->cert) | |
2683 | || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { | |
0f113f3e MC |
2684 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS); |
2685 | goto err2; | |
2686 | } | |
2687 | ||
2688 | ret->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 2689 | if (ret->param == NULL) |
0f113f3e MC |
2690 | goto err; |
2691 | ||
2692 | if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) { | |
2693 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); | |
2694 | goto err2; | |
2695 | } | |
2696 | if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) { | |
2697 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); | |
2698 | goto err2; | |
2699 | } | |
2700 | ||
fa7c2637 | 2701 | if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL) |
0f113f3e MC |
2702 | goto err; |
2703 | ||
25a807bc F |
2704 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) |
2705 | goto err; | |
0f113f3e | 2706 | |
0f113f3e MC |
2707 | /* No compression for DTLS */ |
2708 | if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)) | |
2709 | ret->comp_methods = SSL_COMP_get_compression_methods(); | |
2710 | ||
2711 | ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; | |
d102d9df | 2712 | ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; |
566dda07 | 2713 | |
4e2e1ec9 | 2714 | /* Setup RFC5077 ticket keys */ |
aff8c126 RS |
2715 | if ((RAND_bytes(ret->ext.tick_key_name, |
2716 | sizeof(ret->ext.tick_key_name)) <= 0) | |
2717 | || (RAND_bytes(ret->ext.tick_hmac_key, | |
2718 | sizeof(ret->ext.tick_hmac_key)) <= 0) | |
2719 | || (RAND_bytes(ret->ext.tick_aes_key, | |
2720 | sizeof(ret->ext.tick_aes_key)) <= 0)) | |
0f113f3e | 2721 | ret->options |= SSL_OP_NO_TICKET; |
6434abbf | 2722 | |
edc032b5 | 2723 | #ifndef OPENSSL_NO_SRP |
61986d32 | 2724 | if (!SSL_CTX_SRP_CTX_init(ret)) |
69f68237 | 2725 | goto err; |
edc032b5 | 2726 | #endif |
4db9677b | 2727 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e MC |
2728 | # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO |
2729 | # define eng_strx(x) #x | |
2730 | # define eng_str(x) eng_strx(x) | |
2731 | /* Use specific client engine automatically... ignore errors */ | |
2732 | { | |
2733 | ENGINE *eng; | |
2734 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2735 | if (!eng) { | |
2736 | ERR_clear_error(); | |
2737 | ENGINE_load_builtin_engines(); | |
2738 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2739 | } | |
2740 | if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) | |
2741 | ERR_clear_error(); | |
2742 | } | |
2743 | # endif | |
2744 | #endif | |
2745 | /* | |
2746 | * Default is to connect to non-RI servers. When RI is more widely | |
2747 | * deployed might change this. | |
2748 | */ | |
2749 | ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; | |
dc5744cb EK |
2750 | /* |
2751 | * Disable compression by default to prevent CRIME. Applications can | |
2752 | * re-enable compression by configuring | |
2753 | * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION); | |
2754 | * or by using the SSL_CONF library. | |
2755 | */ | |
2756 | ret->options |= SSL_OP_NO_COMPRESSION; | |
0f113f3e | 2757 | |
aff8c126 | 2758 | ret->ext.status_type = TLSEXT_STATUSTYPE_nothing; |
ba261f71 | 2759 | |
bfa9a9af MC |
2760 | /* |
2761 | * Default max early data is a fully loaded single record. Could be split | |
2762 | * across multiple records in practice | |
2763 | */ | |
2764 | ret->max_early_data = SSL3_RT_MAX_PLAIN_LENGTH; | |
2765 | ||
16203f7b | 2766 | return ret; |
0f113f3e MC |
2767 | err: |
2768 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2769 | err2: | |
e0e920b1 | 2770 | SSL_CTX_free(ret); |
16203f7b | 2771 | return NULL; |
0f113f3e | 2772 | } |
d02b48c6 | 2773 | |
c5ebfcab | 2774 | int SSL_CTX_up_ref(SSL_CTX *ctx) |
a18a31e4 | 2775 | { |
16203f7b | 2776 | int i; |
c5ebfcab | 2777 | |
2f545ae4 | 2778 | if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0) |
c5ebfcab F |
2779 | return 0; |
2780 | ||
2781 | REF_PRINT_COUNT("SSL_CTX", ctx); | |
2782 | REF_ASSERT_ISNT(i < 2); | |
2783 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
2784 | } |
2785 | ||
4f43d0e7 | 2786 | void SSL_CTX_free(SSL_CTX *a) |
0f113f3e MC |
2787 | { |
2788 | int i; | |
d02b48c6 | 2789 | |
0f113f3e MC |
2790 | if (a == NULL) |
2791 | return; | |
d02b48c6 | 2792 | |
2f545ae4 | 2793 | CRYPTO_DOWN_REF(&a->references, &i, a->lock); |
f3f1cf84 | 2794 | REF_PRINT_COUNT("SSL_CTX", a); |
0f113f3e MC |
2795 | if (i > 0) |
2796 | return; | |
f3f1cf84 | 2797 | REF_ASSERT_ISNT(i < 0); |
0f113f3e | 2798 | |
222561fe | 2799 | X509_VERIFY_PARAM_free(a->param); |
919ba009 | 2800 | dane_ctx_final(&a->dane); |
0f113f3e MC |
2801 | |
2802 | /* | |
2803 | * Free internal session cache. However: the remove_cb() may reference | |
2804 | * the ex_data of SSL_CTX, thus the ex_data store can only be removed | |
2805 | * after the sessions were flushed. | |
2806 | * As the ex_data handling routines might also touch the session cache, | |
2807 | * the most secure solution seems to be: empty (flush) the cache, then | |
2808 | * free ex_data, then finally free the cache. | |
2809 | * (See ticket [openssl.org #212].) | |
2810 | */ | |
2811 | if (a->sessions != NULL) | |
2812 | SSL_CTX_flush_sessions(a, 0); | |
2813 | ||
2814 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); | |
25aaa98a | 2815 | lh_SSL_SESSION_free(a->sessions); |
222561fe | 2816 | X509_STORE_free(a->cert_store); |
ed29e82a RP |
2817 | #ifndef OPENSSL_NO_CT |
2818 | CTLOG_STORE_free(a->ctlog_store); | |
2819 | #endif | |
25aaa98a RS |
2820 | sk_SSL_CIPHER_free(a->cipher_list); |
2821 | sk_SSL_CIPHER_free(a->cipher_list_by_id); | |
e0e920b1 | 2822 | ssl_cert_free(a->cert); |
fa7c2637 | 2823 | sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free); |
222561fe | 2824 | sk_X509_pop_free(a->extra_certs, X509_free); |
0f113f3e | 2825 | a->comp_methods = NULL; |
e783bae2 | 2826 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 2827 | sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); |
e783bae2 | 2828 | #endif |
edc032b5 | 2829 | #ifndef OPENSSL_NO_SRP |
0f113f3e | 2830 | SSL_CTX_SRP_CTX_free(a); |
edc032b5 | 2831 | #endif |
bdfe932d | 2832 | #ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 2833 | ENGINE_finish(a->client_cert_engine); |
ddac1974 | 2834 | #endif |
8671b898 | 2835 | |
e481f9b9 | 2836 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
2837 | OPENSSL_free(a->ext.ecpointformats); |
2838 | OPENSSL_free(a->ext.supportedgroups); | |
8671b898 | 2839 | #endif |
aff8c126 | 2840 | OPENSSL_free(a->ext.alpn); |
8671b898 | 2841 | |
16203f7b AG |
2842 | CRYPTO_THREAD_lock_free(a->lock); |
2843 | ||
0f113f3e MC |
2844 | OPENSSL_free(a); |
2845 | } | |
d02b48c6 | 2846 | |
3ae76679 | 2847 | void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) |
0f113f3e MC |
2848 | { |
2849 | ctx->default_passwd_callback = cb; | |
2850 | } | |
2851 | ||
2852 | void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) | |
2853 | { | |
2854 | ctx->default_passwd_callback_userdata = u; | |
2855 | } | |
2856 | ||
0c452abc CH |
2857 | pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) |
2858 | { | |
2859 | return ctx->default_passwd_callback; | |
2860 | } | |
2861 | ||
2862 | void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) | |
2863 | { | |
2864 | return ctx->default_passwd_callback_userdata; | |
2865 | } | |
2866 | ||
a974e64a MC |
2867 | void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb) |
2868 | { | |
2869 | s->default_passwd_callback = cb; | |
2870 | } | |
2871 | ||
2872 | void SSL_set_default_passwd_cb_userdata(SSL *s, void *u) | |
2873 | { | |
2874 | s->default_passwd_callback_userdata = u; | |
2875 | } | |
2876 | ||
0c452abc CH |
2877 | pem_password_cb *SSL_get_default_passwd_cb(SSL *s) |
2878 | { | |
2879 | return s->default_passwd_callback; | |
2880 | } | |
2881 | ||
2882 | void *SSL_get_default_passwd_cb_userdata(SSL *s) | |
2883 | { | |
2884 | return s->default_passwd_callback_userdata; | |
2885 | } | |
2886 | ||
0f113f3e MC |
2887 | void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, |
2888 | int (*cb) (X509_STORE_CTX *, void *), | |
2889 | void *arg) | |
2890 | { | |
2891 | ctx->app_verify_callback = cb; | |
2892 | ctx->app_verify_arg = arg; | |
2893 | } | |
2894 | ||
2895 | void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, | |
2896 | int (*cb) (int, X509_STORE_CTX *)) | |
2897 | { | |
2898 | ctx->verify_mode = mode; | |
2899 | ctx->default_verify_callback = cb; | |
2900 | } | |
2901 | ||
2902 | void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) | |
2903 | { | |
2904 | X509_VERIFY_PARAM_set_depth(ctx->param, depth); | |
2905 | } | |
2906 | ||
a230b26e | 2907 | void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg) |
0f113f3e MC |
2908 | { |
2909 | ssl_cert_set_cert_cb(c->cert, cb, arg); | |
2910 | } | |
2911 | ||
2912 | void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg) | |
2913 | { | |
2914 | ssl_cert_set_cert_cb(s->cert, cb, arg); | |
2915 | } | |
18d71588 | 2916 | |
2cf28d61 | 2917 | void ssl_set_masks(SSL *s) |
0f113f3e | 2918 | { |
6383d316 | 2919 | CERT *c = s->cert; |
f7d53487 | 2920 | uint32_t *pvalid = s->s3->tmp.valid_flags; |
bc71f910 | 2921 | int rsa_enc, rsa_sign, dh_tmp, dsa_sign; |
361a1191 | 2922 | unsigned long mask_k, mask_a; |
10bf4fc2 | 2923 | #ifndef OPENSSL_NO_EC |
361a1191 | 2924 | int have_ecc_cert, ecdsa_ok; |
14536c8c | 2925 | #endif |
0f113f3e MC |
2926 | if (c == NULL) |
2927 | return; | |
d02b48c6 | 2928 | |
bc36ee62 | 2929 | #ifndef OPENSSL_NO_DH |
0f113f3e | 2930 | dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto); |
d02b48c6 | 2931 | #else |
361a1191 | 2932 | dh_tmp = 0; |
d02b48c6 RE |
2933 | #endif |
2934 | ||
d0ff28f8 | 2935 | rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID; |
38e8f3cd DSH |
2936 | rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID; |
2937 | dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID; | |
14536c8c | 2938 | #ifndef OPENSSL_NO_EC |
6383d316 | 2939 | have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID; |
14536c8c | 2940 | #endif |
0f113f3e MC |
2941 | mask_k = 0; |
2942 | mask_a = 0; | |
0e1dba93 | 2943 | |
d02b48c6 | 2944 | #ifdef CIPHER_DEBUG |
b7557ccf AG |
2945 | fprintf(stderr, "dht=%d re=%d rs=%d ds=%d\n", |
2946 | dh_tmp, rsa_enc, rsa_sign, dsa_sign); | |
0f113f3e MC |
2947 | #endif |
2948 | ||
2a9b9654 | 2949 | #ifndef OPENSSL_NO_GOST |
4020c0b3 | 2950 | if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) { |
e44380a9 DB |
2951 | mask_k |= SSL_kGOST; |
2952 | mask_a |= SSL_aGOST12; | |
2953 | } | |
4020c0b3 | 2954 | if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) { |
e44380a9 DB |
2955 | mask_k |= SSL_kGOST; |
2956 | mask_a |= SSL_aGOST12; | |
2957 | } | |
4020c0b3 | 2958 | if (ssl_has_cert(s, SSL_PKEY_GOST01)) { |
0f113f3e MC |
2959 | mask_k |= SSL_kGOST; |
2960 | mask_a |= SSL_aGOST01; | |
2961 | } | |
2a9b9654 | 2962 | #endif |
0f113f3e | 2963 | |
361a1191 | 2964 | if (rsa_enc) |
0f113f3e | 2965 | mask_k |= SSL_kRSA; |
d02b48c6 | 2966 | |
0f113f3e MC |
2967 | if (dh_tmp) |
2968 | mask_k |= SSL_kDHE; | |
d02b48c6 | 2969 | |
0f113f3e MC |
2970 | if (rsa_enc || rsa_sign) { |
2971 | mask_a |= SSL_aRSA; | |
0f113f3e | 2972 | } |
d02b48c6 | 2973 | |
0f113f3e MC |
2974 | if (dsa_sign) { |
2975 | mask_a |= SSL_aDSS; | |
0f113f3e | 2976 | } |
d02b48c6 | 2977 | |
0f113f3e | 2978 | mask_a |= SSL_aNULL; |
d02b48c6 | 2979 | |
0f113f3e MC |
2980 | /* |
2981 | * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites | |
2982 | * depending on the key usage extension. | |
2983 | */ | |
14536c8c | 2984 | #ifndef OPENSSL_NO_EC |
0f113f3e | 2985 | if (have_ecc_cert) { |
a8d8e06b | 2986 | uint32_t ex_kusage; |
4020c0b3 | 2987 | ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509); |
a8d8e06b | 2988 | ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE; |
6383d316 | 2989 | if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN)) |
0f113f3e | 2990 | ecdsa_ok = 0; |
c7c46256 | 2991 | if (ecdsa_ok) |
0f113f3e | 2992 | mask_a |= SSL_aECDSA; |
0f113f3e | 2993 | } |
14536c8c | 2994 | #endif |
ea262260 | 2995 | |
10bf4fc2 | 2996 | #ifndef OPENSSL_NO_EC |
fe6ef247 | 2997 | mask_k |= SSL_kECDHE; |
ea262260 | 2998 | #endif |
ddac1974 NL |
2999 | |
3000 | #ifndef OPENSSL_NO_PSK | |
0f113f3e MC |
3001 | mask_k |= SSL_kPSK; |
3002 | mask_a |= SSL_aPSK; | |
526f94ad DSH |
3003 | if (mask_k & SSL_kRSA) |
3004 | mask_k |= SSL_kRSAPSK; | |
3005 | if (mask_k & SSL_kDHE) | |
3006 | mask_k |= SSL_kDHEPSK; | |
3007 | if (mask_k & SSL_kECDHE) | |
3008 | mask_k |= SSL_kECDHEPSK; | |
ddac1974 NL |
3009 | #endif |
3010 | ||
4d69f9e6 DSH |
3011 | s->s3->tmp.mask_k = mask_k; |
3012 | s->s3->tmp.mask_a = mask_a; | |
0f113f3e | 3013 | } |
d02b48c6 | 3014 | |
ef236ec3 DSH |
3015 | #ifndef OPENSSL_NO_EC |
3016 | ||
a2f9200f | 3017 | int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) |
0f113f3e | 3018 | { |
ce0c1f2b | 3019 | if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aECDSA) { |
0f113f3e | 3020 | /* key usage, if present, must allow signing */ |
ce0c1f2b | 3021 | if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) { |
0f113f3e MC |
3022 | SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, |
3023 | SSL_R_ECC_CERT_NOT_FOR_SIGNING); | |
3024 | return 0; | |
3025 | } | |
3026 | } | |
0f113f3e MC |
3027 | return 1; /* all checks are ok */ |
3028 | } | |
ea262260 | 3029 | |
ef236ec3 DSH |
3030 | #endif |
3031 | ||
a398f821 | 3032 | int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, |
0f113f3e MC |
3033 | size_t *serverinfo_length) |
3034 | { | |
a497cf25 | 3035 | CERT_PKEY *cpk = s->s3->tmp.cert; |
0f113f3e MC |
3036 | *serverinfo_length = 0; |
3037 | ||
a497cf25 | 3038 | if (cpk == NULL || cpk->serverinfo == NULL) |
0f113f3e MC |
3039 | return 0; |
3040 | ||
a497cf25 DSH |
3041 | *serverinfo = cpk->serverinfo; |
3042 | *serverinfo_length = cpk->serverinfo_length; | |
0f113f3e MC |
3043 | return 1; |
3044 | } | |
0f113f3e MC |
3045 | |
3046 | void ssl_update_cache(SSL *s, int mode) | |
3047 | { | |
3048 | int i; | |
3049 | ||
3050 | /* | |
3051 | * If the session_id_length is 0, we are not supposed to cache it, and it | |
3052 | * would be rather hard to do anyway :-) | |
3053 | */ | |
3054 | if (s->session->session_id_length == 0) | |
3055 | return; | |
3056 | ||
3057 | i = s->session_ctx->session_cache_mode; | |
3058 | if ((i & mode) && (!s->hit) | |
3059 | && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) | |
3060 | || SSL_CTX_add_session(s->session_ctx, s->session)) | |
3061 | && (s->session_ctx->new_session_cb != NULL)) { | |
16203f7b | 3062 | SSL_SESSION_up_ref(s->session); |
0f113f3e MC |
3063 | if (!s->session_ctx->new_session_cb(s, s->session)) |
3064 | SSL_SESSION_free(s->session); | |
3065 | } | |
3066 | ||
3067 | /* auto flush every 255 connections */ | |
3068 | if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) { | |
3069 | if ((((mode & SSL_SESS_CACHE_CLIENT) | |
3070 | ? s->session_ctx->stats.sess_connect_good | |
3071 | : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) { | |
3072 | SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL)); | |
3073 | } | |
3074 | } | |
3075 | } | |
d02b48c6 | 3076 | |
ba168244 | 3077 | const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx) |
0f113f3e MC |
3078 | { |
3079 | return ctx->method; | |
3080 | } | |
ba168244 | 3081 | |
4ebb342f | 3082 | const SSL_METHOD *SSL_get_ssl_method(SSL *s) |
0f113f3e MC |
3083 | { |
3084 | return (s->method); | |
3085 | } | |
d02b48c6 | 3086 | |
4ebb342f | 3087 | int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) |
0f113f3e | 3088 | { |
0f113f3e MC |
3089 | int ret = 1; |
3090 | ||
3091 | if (s->method != meth) { | |
919ba009 | 3092 | const SSL_METHOD *sm = s->method; |
a230b26e | 3093 | int (*hf) (SSL *) = s->handshake_func; |
0f113f3e | 3094 | |
919ba009 | 3095 | if (sm->version == meth->version) |
0f113f3e MC |
3096 | s->method = meth; |
3097 | else { | |
919ba009 | 3098 | sm->ssl_free(s); |
0f113f3e MC |
3099 | s->method = meth; |
3100 | ret = s->method->ssl_new(s); | |
3101 | } | |
3102 | ||
919ba009 | 3103 | if (hf == sm->ssl_connect) |
0f113f3e | 3104 | s->handshake_func = meth->ssl_connect; |
919ba009 | 3105 | else if (hf == sm->ssl_accept) |
0f113f3e MC |
3106 | s->handshake_func = meth->ssl_accept; |
3107 | } | |
3108 | return (ret); | |
3109 | } | |
3110 | ||
3111 | int SSL_get_error(const SSL *s, int i) | |
3112 | { | |
3113 | int reason; | |
3114 | unsigned long l; | |
3115 | BIO *bio; | |
3116 | ||
3117 | if (i > 0) | |
3118 | return (SSL_ERROR_NONE); | |
3119 | ||
3120 | /* | |
3121 | * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc, | |
3122 | * where we do encode the error | |
3123 | */ | |
3124 | if ((l = ERR_peek_error()) != 0) { | |
3125 | if (ERR_GET_LIB(l) == ERR_LIB_SYS) | |
3126 | return (SSL_ERROR_SYSCALL); | |
3127 | else | |
3128 | return (SSL_ERROR_SSL); | |
3129 | } | |
3130 | ||
8051ab2b MC |
3131 | if (SSL_want_read(s)) { |
3132 | bio = SSL_get_rbio(s); | |
3133 | if (BIO_should_read(bio)) | |
3134 | return (SSL_ERROR_WANT_READ); | |
3135 | else if (BIO_should_write(bio)) | |
3136 | /* | |
3137 | * This one doesn't make too much sense ... We never try to write | |
3138 | * to the rbio, and an application program where rbio and wbio | |
3139 | * are separate couldn't even know what it should wait for. | |
3140 | * However if we ever set s->rwstate incorrectly (so that we have | |
3141 | * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and | |
3142 | * wbio *are* the same, this test works around that bug; so it | |
3143 | * might be safer to keep it. | |
3144 | */ | |
3145 | return (SSL_ERROR_WANT_WRITE); | |
3146 | else if (BIO_should_io_special(bio)) { | |
3147 | reason = BIO_get_retry_reason(bio); | |
3148 | if (reason == BIO_RR_CONNECT) | |
3149 | return (SSL_ERROR_WANT_CONNECT); | |
3150 | else if (reason == BIO_RR_ACCEPT) | |
3151 | return (SSL_ERROR_WANT_ACCEPT); | |
3152 | else | |
3153 | return (SSL_ERROR_SYSCALL); /* unknown */ | |
0f113f3e | 3154 | } |
8051ab2b | 3155 | } |
0f113f3e | 3156 | |
8051ab2b | 3157 | if (SSL_want_write(s)) { |
69687aa8 | 3158 | /* Access wbio directly - in order to use the buffered bio if present */ |
8051ab2b MC |
3159 | bio = s->wbio; |
3160 | if (BIO_should_write(bio)) | |
3161 | return (SSL_ERROR_WANT_WRITE); | |
3162 | else if (BIO_should_read(bio)) | |
2e7dc7cd | 3163 | /* |
8051ab2b | 3164 | * See above (SSL_want_read(s) with BIO_should_write(bio)) |
2e7dc7cd | 3165 | */ |
8051ab2b MC |
3166 | return (SSL_ERROR_WANT_READ); |
3167 | else if (BIO_should_io_special(bio)) { | |
3168 | reason = BIO_get_retry_reason(bio); | |
3169 | if (reason == BIO_RR_CONNECT) | |
3170 | return (SSL_ERROR_WANT_CONNECT); | |
3171 | else if (reason == BIO_RR_ACCEPT) | |
3172 | return (SSL_ERROR_WANT_ACCEPT); | |
3173 | else | |
3174 | return (SSL_ERROR_SYSCALL); | |
0f113f3e | 3175 | } |
07bbc92c | 3176 | } |
6b1bb98f | 3177 | if (SSL_want_x509_lookup(s)) |
8051ab2b | 3178 | return (SSL_ERROR_WANT_X509_LOOKUP); |
6b1bb98f | 3179 | if (SSL_want_async(s)) |
8051ab2b | 3180 | return SSL_ERROR_WANT_ASYNC; |
6b1bb98f | 3181 | if (SSL_want_async_job(s)) |
8051ab2b | 3182 | return SSL_ERROR_WANT_ASYNC_JOB; |
6b1bb98f BK |
3183 | if (SSL_want_early(s)) |
3184 | return SSL_ERROR_WANT_EARLY; | |
8051ab2b MC |
3185 | |
3186 | if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && | |
3187 | (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) | |
3188 | return (SSL_ERROR_ZERO_RETURN); | |
3189 | ||
0f113f3e MC |
3190 | return (SSL_ERROR_SYSCALL); |
3191 | } | |
d02b48c6 | 3192 | |
add2f5ca MC |
3193 | static int ssl_do_handshake_intern(void *vargs) |
3194 | { | |
3195 | struct ssl_async_args *args; | |
3196 | SSL *s; | |
3197 | ||
3198 | args = (struct ssl_async_args *)vargs; | |
3199 | s = args->s; | |
3200 | ||
3201 | return s->handshake_func(s); | |
3202 | } | |
3203 | ||
4f43d0e7 | 3204 | int SSL_do_handshake(SSL *s) |
0f113f3e MC |
3205 | { |
3206 | int ret = 1; | |
3207 | ||
3208 | if (s->handshake_func == NULL) { | |
3209 | SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET); | |
add2f5ca | 3210 | return -1; |
0f113f3e MC |
3211 | } |
3212 | ||
3eaa4170 | 3213 | ossl_statem_check_finish_init(s, -1); |
49e7fe12 | 3214 | |
c7f47786 | 3215 | s->method->ssl_renegotiate_check(s, 0); |
0f113f3e MC |
3216 | |
3217 | if (SSL_in_init(s) || SSL_in_before(s)) { | |
e8aa8b6c | 3218 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca MC |
3219 | struct ssl_async_args args; |
3220 | ||
3221 | args.s = s; | |
3222 | ||
7fecbf6f | 3223 | ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern); |
add2f5ca MC |
3224 | } else { |
3225 | ret = s->handshake_func(s); | |
3226 | } | |
0f113f3e | 3227 | } |
add2f5ca | 3228 | return ret; |
0f113f3e MC |
3229 | } |
3230 | ||
4f43d0e7 | 3231 | void SSL_set_accept_state(SSL *s) |
0f113f3e MC |
3232 | { |
3233 | s->server = 1; | |
3234 | s->shutdown = 0; | |
fe3a3291 | 3235 | ossl_statem_clear(s); |
0f113f3e | 3236 | s->handshake_func = s->method->ssl_accept; |
d31fb0b5 | 3237 | clear_ciphers(s); |
0f113f3e | 3238 | } |
d02b48c6 | 3239 | |
4f43d0e7 | 3240 | void SSL_set_connect_state(SSL *s) |
0f113f3e MC |
3241 | { |
3242 | s->server = 0; | |
3243 | s->shutdown = 0; | |
fe3a3291 | 3244 | ossl_statem_clear(s); |
0f113f3e | 3245 | s->handshake_func = s->method->ssl_connect; |
d31fb0b5 | 3246 | clear_ciphers(s); |
0f113f3e | 3247 | } |
d02b48c6 | 3248 | |
4f43d0e7 | 3249 | int ssl_undefined_function(SSL *s) |
0f113f3e MC |
3250 | { |
3251 | SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3252 | return (0); | |
3253 | } | |
d02b48c6 | 3254 | |
41a15c4f | 3255 | int ssl_undefined_void_function(void) |
0f113f3e MC |
3256 | { |
3257 | SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION, | |
3258 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3259 | return (0); | |
3260 | } | |
41a15c4f | 3261 | |
0821bcd4 | 3262 | int ssl_undefined_const_function(const SSL *s) |
0f113f3e | 3263 | { |
0f113f3e MC |
3264 | return (0); |
3265 | } | |
0821bcd4 | 3266 | |
2b8fa1d5 | 3267 | const SSL_METHOD *ssl_bad_method(int ver) |
0f113f3e MC |
3268 | { |
3269 | SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3270 | return (NULL); | |
3271 | } | |
d02b48c6 | 3272 | |
3eb2aff4 | 3273 | const char *ssl_protocol_to_string(int version) |
7d650072 | 3274 | { |
2abacef1 MC |
3275 | switch(version) |
3276 | { | |
3277 | case TLS1_3_VERSION: | |
582a17d6 | 3278 | return "TLSv1.3"; |
2abacef1 MC |
3279 | |
3280 | case TLS1_2_VERSION: | |
7d650072 | 3281 | return "TLSv1.2"; |
2abacef1 MC |
3282 | |
3283 | case TLS1_1_VERSION: | |
7d650072 | 3284 | return "TLSv1.1"; |
2abacef1 MC |
3285 | |
3286 | case TLS1_VERSION: | |
ee3a6c64 | 3287 | return "TLSv1"; |
2abacef1 MC |
3288 | |
3289 | case SSL3_VERSION: | |
7d650072 | 3290 | return "SSLv3"; |
2abacef1 MC |
3291 | |
3292 | case DTLS1_BAD_VER: | |
7d650072 | 3293 | return "DTLSv0.9"; |
2abacef1 MC |
3294 | |
3295 | case DTLS1_VERSION: | |
7d650072 | 3296 | return "DTLSv1"; |
2abacef1 MC |
3297 | |
3298 | case DTLS1_2_VERSION: | |
7d650072 | 3299 | return "DTLSv1.2"; |
2abacef1 MC |
3300 | |
3301 | default: | |
3302 | return "unknown"; | |
3303 | } | |
0f113f3e | 3304 | } |
d02b48c6 | 3305 | |
7d650072 KR |
3306 | const char *SSL_get_version(const SSL *s) |
3307 | { | |
3eb2aff4 | 3308 | return ssl_protocol_to_string(s->version); |
7d650072 KR |
3309 | } |
3310 | ||
4f43d0e7 | 3311 | SSL *SSL_dup(SSL *s) |
0f113f3e MC |
3312 | { |
3313 | STACK_OF(X509_NAME) *sk; | |
3314 | X509_NAME *xn; | |
3315 | SSL *ret; | |
3316 | int i; | |
3317 | ||
919ba009 VD |
3318 | /* If we're not quiescent, just up_ref! */ |
3319 | if (!SSL_in_init(s) || !SSL_in_before(s)) { | |
2f545ae4 | 3320 | CRYPTO_UP_REF(&s->references, &i, s->lock); |
919ba009 VD |
3321 | return s; |
3322 | } | |
3323 | ||
3324 | /* | |
3325 | * Otherwise, copy configuration state, and session if set. | |
3326 | */ | |
0f113f3e MC |
3327 | if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) |
3328 | return (NULL); | |
3329 | ||
0f113f3e | 3330 | if (s->session != NULL) { |
919ba009 VD |
3331 | /* |
3332 | * Arranges to share the same session via up_ref. This "copies" | |
3333 | * session-id, SSL_METHOD, sid_ctx, and 'cert' | |
3334 | */ | |
61986d32 | 3335 | if (!SSL_copy_session_id(ret, s)) |
17dd65e6 | 3336 | goto err; |
0f113f3e MC |
3337 | } else { |
3338 | /* | |
3339 | * No session has been established yet, so we have to expect that | |
3340 | * s->cert or ret->cert will be changed later -- they should not both | |
3341 | * point to the same object, and thus we can't use | |
3342 | * SSL_copy_session_id. | |
3343 | */ | |
919ba009 VD |
3344 | if (!SSL_set_ssl_method(ret, s->method)) |
3345 | goto err; | |
0f113f3e MC |
3346 | |
3347 | if (s->cert != NULL) { | |
e0e920b1 | 3348 | ssl_cert_free(ret->cert); |
0f113f3e MC |
3349 | ret->cert = ssl_cert_dup(s->cert); |
3350 | if (ret->cert == NULL) | |
3351 | goto err; | |
3352 | } | |
3353 | ||
348240c6 MC |
3354 | if (!SSL_set_session_id_context(ret, s->sid_ctx, |
3355 | (int)s->sid_ctx_length)) | |
69f68237 | 3356 | goto err; |
0f113f3e MC |
3357 | } |
3358 | ||
9f6b22b8 VD |
3359 | if (!ssl_dane_dup(ret, s)) |
3360 | goto err; | |
919ba009 | 3361 | ret->version = s->version; |
0f113f3e MC |
3362 | ret->options = s->options; |
3363 | ret->mode = s->mode; | |
3364 | SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); | |
3365 | SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); | |
3366 | ret->msg_callback = s->msg_callback; | |
3367 | ret->msg_callback_arg = s->msg_callback_arg; | |
3368 | SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s)); | |
3369 | SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); | |
3370 | ret->generate_session_id = s->generate_session_id; | |
3371 | ||
3372 | SSL_set_info_callback(ret, SSL_get_info_callback(s)); | |
3373 | ||
0f113f3e MC |
3374 | /* copy app data, a little dangerous perhaps */ |
3375 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) | |
3376 | goto err; | |
3377 | ||
3378 | /* setup rbio, and wbio */ | |
3379 | if (s->rbio != NULL) { | |
3380 | if (!BIO_dup_state(s->rbio, (char *)&ret->rbio)) | |
3381 | goto err; | |
3382 | } | |
3383 | if (s->wbio != NULL) { | |
3384 | if (s->wbio != s->rbio) { | |
3385 | if (!BIO_dup_state(s->wbio, (char *)&ret->wbio)) | |
3386 | goto err; | |
65e2d672 MC |
3387 | } else { |
3388 | BIO_up_ref(ret->rbio); | |
0f113f3e | 3389 | ret->wbio = ret->rbio; |
65e2d672 | 3390 | } |
0f113f3e | 3391 | } |
919ba009 | 3392 | |
0f113f3e | 3393 | ret->server = s->server; |
919ba009 VD |
3394 | if (s->handshake_func) { |
3395 | if (s->server) | |
3396 | SSL_set_accept_state(ret); | |
3397 | else | |
3398 | SSL_set_connect_state(ret); | |
3399 | } | |
0f113f3e | 3400 | ret->shutdown = s->shutdown; |
0f113f3e MC |
3401 | ret->hit = s->hit; |
3402 | ||
a974e64a MC |
3403 | ret->default_passwd_callback = s->default_passwd_callback; |
3404 | ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata; | |
3405 | ||
0f113f3e MC |
3406 | X509_VERIFY_PARAM_inherit(ret->param, s->param); |
3407 | ||
3408 | /* dup the cipher_list and cipher_list_by_id stacks */ | |
3409 | if (s->cipher_list != NULL) { | |
3410 | if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) | |
3411 | goto err; | |
3412 | } | |
3413 | if (s->cipher_list_by_id != NULL) | |
3414 | if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id)) | |
3415 | == NULL) | |
3416 | goto err; | |
3417 | ||
3418 | /* Dup the client_CA list */ | |
fa7c2637 DSH |
3419 | if (s->ca_names != NULL) { |
3420 | if ((sk = sk_X509_NAME_dup(s->ca_names)) == NULL) | |
0f113f3e | 3421 | goto err; |
fa7c2637 | 3422 | ret->ca_names = sk; |
0f113f3e MC |
3423 | for (i = 0; i < sk_X509_NAME_num(sk); i++) { |
3424 | xn = sk_X509_NAME_value(sk, i); | |
3425 | if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) { | |
3426 | X509_NAME_free(xn); | |
3427 | goto err; | |
3428 | } | |
3429 | } | |
3430 | } | |
66696478 | 3431 | return ret; |
0f113f3e | 3432 | |
0f113f3e | 3433 | err: |
66696478 RS |
3434 | SSL_free(ret); |
3435 | return NULL; | |
0f113f3e | 3436 | } |
d02b48c6 | 3437 | |
4f43d0e7 | 3438 | void ssl_clear_cipher_ctx(SSL *s) |
0f113f3e MC |
3439 | { |
3440 | if (s->enc_read_ctx != NULL) { | |
846ec07d | 3441 | EVP_CIPHER_CTX_free(s->enc_read_ctx); |
0f113f3e MC |
3442 | s->enc_read_ctx = NULL; |
3443 | } | |
3444 | if (s->enc_write_ctx != NULL) { | |
846ec07d | 3445 | EVP_CIPHER_CTX_free(s->enc_write_ctx); |
0f113f3e MC |
3446 | s->enc_write_ctx = NULL; |
3447 | } | |
09b6c2ef | 3448 | #ifndef OPENSSL_NO_COMP |
efa7dd64 RS |
3449 | COMP_CTX_free(s->expand); |
3450 | s->expand = NULL; | |
3451 | COMP_CTX_free(s->compress); | |
3452 | s->compress = NULL; | |
0f113f3e MC |
3453 | #endif |
3454 | } | |
d02b48c6 | 3455 | |
0821bcd4 | 3456 | X509 *SSL_get_certificate(const SSL *s) |
0f113f3e MC |
3457 | { |
3458 | if (s->cert != NULL) | |
3459 | return (s->cert->key->x509); | |
3460 | else | |
3461 | return (NULL); | |
3462 | } | |
d02b48c6 | 3463 | |
a25f9adc | 3464 | EVP_PKEY *SSL_get_privatekey(const SSL *s) |
0f113f3e MC |
3465 | { |
3466 | if (s->cert != NULL) | |
3467 | return (s->cert->key->privatekey); | |
3468 | else | |
3469 | return (NULL); | |
3470 | } | |
d02b48c6 | 3471 | |
a25f9adc | 3472 | X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx) |
0f113f3e MC |
3473 | { |
3474 | if (ctx->cert != NULL) | |
3475 | return ctx->cert->key->x509; | |
3476 | else | |
3477 | return NULL; | |
3478 | } | |
a25f9adc DSH |
3479 | |
3480 | EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx) | |
0f113f3e MC |
3481 | { |
3482 | if (ctx->cert != NULL) | |
3483 | return ctx->cert->key->privatekey; | |
3484 | else | |
3485 | return NULL; | |
3486 | } | |
a25f9adc | 3487 | |
babb3798 | 3488 | const SSL_CIPHER *SSL_get_current_cipher(const SSL *s) |
0f113f3e MC |
3489 | { |
3490 | if ((s->session != NULL) && (s->session->cipher != NULL)) | |
3491 | return (s->session->cipher); | |
3492 | return (NULL); | |
3493 | } | |
3494 | ||
377dcdba | 3495 | const COMP_METHOD *SSL_get_current_compression(SSL *s) |
0f113f3e | 3496 | { |
9a555706 RS |
3497 | #ifndef OPENSSL_NO_COMP |
3498 | return s->compress ? COMP_CTX_get_method(s->compress) : NULL; | |
3499 | #else | |
3500 | return NULL; | |
3501 | #endif | |
0f113f3e | 3502 | } |
377dcdba RL |
3503 | |
3504 | const COMP_METHOD *SSL_get_current_expansion(SSL *s) | |
0f113f3e | 3505 | { |
9a555706 RS |
3506 | #ifndef OPENSSL_NO_COMP |
3507 | return s->expand ? COMP_CTX_get_method(s->expand) : NULL; | |
3508 | #else | |
3509 | return NULL; | |
0f113f3e | 3510 | #endif |
9a555706 | 3511 | } |
0f113f3e | 3512 | |
46417569 | 3513 | int ssl_init_wbio_buffer(SSL *s) |
0f113f3e MC |
3514 | { |
3515 | BIO *bbio; | |
3516 | ||
2e7dc7cd MC |
3517 | if (s->bbio != NULL) { |
3518 | /* Already buffered. */ | |
3519 | return 1; | |
0f113f3e | 3520 | } |
46417569 | 3521 | |
2e7dc7cd MC |
3522 | bbio = BIO_new(BIO_f_buffer()); |
3523 | if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) { | |
3524 | BIO_free(bbio); | |
0f113f3e | 3525 | SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB); |
46417569 | 3526 | return 0; |
0f113f3e | 3527 | } |
2e7dc7cd MC |
3528 | s->bbio = bbio; |
3529 | s->wbio = BIO_push(bbio, s->wbio); | |
46417569 MC |
3530 | |
3531 | return 1; | |
0f113f3e | 3532 | } |
413c4f45 | 3533 | |
b77f3ed1 | 3534 | int ssl_free_wbio_buffer(SSL *s) |
0f113f3e | 3535 | { |
62adbcee | 3536 | /* callers ensure s is never null */ |
0f113f3e | 3537 | if (s->bbio == NULL) |
b77f3ed1 | 3538 | return 1; |
0f113f3e | 3539 | |
2e7dc7cd | 3540 | s->wbio = BIO_pop(s->wbio); |
b77f3ed1 MC |
3541 | if (!ossl_assert(s->wbio != NULL)) |
3542 | return 0; | |
0f113f3e MC |
3543 | BIO_free(s->bbio); |
3544 | s->bbio = NULL; | |
b77f3ed1 MC |
3545 | |
3546 | return 1; | |
0f113f3e MC |
3547 | } |
3548 | ||
3549 | void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) | |
3550 | { | |
3551 | ctx->quiet_shutdown = mode; | |
3552 | } | |
58964a49 | 3553 | |
0821bcd4 | 3554 | int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) |
0f113f3e MC |
3555 | { |
3556 | return (ctx->quiet_shutdown); | |
3557 | } | |
58964a49 | 3558 | |
0f113f3e MC |
3559 | void SSL_set_quiet_shutdown(SSL *s, int mode) |
3560 | { | |
3561 | s->quiet_shutdown = mode; | |
3562 | } | |
58964a49 | 3563 | |
0821bcd4 | 3564 | int SSL_get_quiet_shutdown(const SSL *s) |
0f113f3e MC |
3565 | { |
3566 | return (s->quiet_shutdown); | |
3567 | } | |
58964a49 | 3568 | |
0f113f3e MC |
3569 | void SSL_set_shutdown(SSL *s, int mode) |
3570 | { | |
3571 | s->shutdown = mode; | |
3572 | } | |
58964a49 | 3573 | |
0821bcd4 | 3574 | int SSL_get_shutdown(const SSL *s) |
0f113f3e | 3575 | { |
6546e9b2 | 3576 | return s->shutdown; |
0f113f3e | 3577 | } |
58964a49 | 3578 | |
0821bcd4 | 3579 | int SSL_version(const SSL *s) |
0f113f3e | 3580 | { |
6546e9b2 AG |
3581 | return s->version; |
3582 | } | |
3583 | ||
3584 | int SSL_client_version(const SSL *s) | |
3585 | { | |
3586 | return s->client_version; | |
0f113f3e | 3587 | } |
58964a49 | 3588 | |
0821bcd4 | 3589 | SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) |
0f113f3e | 3590 | { |
6546e9b2 | 3591 | return ssl->ctx; |
0f113f3e MC |
3592 | } |
3593 | ||
3594 | SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx) | |
3595 | { | |
24a0d393 | 3596 | CERT *new_cert; |
0f113f3e MC |
3597 | if (ssl->ctx == ctx) |
3598 | return ssl->ctx; | |
0f113f3e | 3599 | if (ctx == NULL) |
222da979 | 3600 | ctx = ssl->session_ctx; |
24a0d393 KR |
3601 | new_cert = ssl_cert_dup(ctx->cert); |
3602 | if (new_cert == NULL) { | |
3603 | return NULL; | |
0f113f3e | 3604 | } |
21181889 MC |
3605 | |
3606 | if (!custom_exts_copy_flags(&new_cert->custext, &ssl->cert->custext)) { | |
3607 | ssl_cert_free(new_cert); | |
3608 | return NULL; | |
3609 | } | |
3610 | ||
24a0d393 KR |
3611 | ssl_cert_free(ssl->cert); |
3612 | ssl->cert = new_cert; | |
0f113f3e MC |
3613 | |
3614 | /* | |
3615 | * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH), | |
3616 | * so setter APIs must prevent invalid lengths from entering the system. | |
3617 | */ | |
380a522f MC |
3618 | if (!ossl_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx))) |
3619 | return NULL; | |
0f113f3e MC |
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 | ||
c649d10d TS |
3908 | void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx, |
3909 | size_t (*cb) (SSL *ssl, int type, | |
3910 | size_t len, void *arg)) | |
3911 | { | |
3912 | ctx->record_padding_cb = cb; | |
3913 | } | |
3914 | ||
3915 | void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg) | |
3916 | { | |
3917 | ctx->record_padding_arg = arg; | |
3918 | } | |
3919 | ||
3920 | void *SSL_CTX_get_record_padding_callback_arg(SSL_CTX *ctx) | |
3921 | { | |
3922 | return ctx->record_padding_arg; | |
3923 | } | |
3924 | ||
3925 | int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size) | |
3926 | { | |
3927 | /* block size of 0 or 1 is basically no padding */ | |
3928 | if (block_size == 1) | |
3929 | ctx->block_padding = 0; | |
3930 | else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH) | |
3931 | ctx->block_padding = block_size; | |
3932 | else | |
3933 | return 0; | |
3934 | return 1; | |
3935 | } | |
3936 | ||
3937 | void SSL_set_record_padding_callback(SSL *ssl, | |
3938 | size_t (*cb) (SSL *ssl, int type, | |
3939 | size_t len, void *arg)) | |
3940 | { | |
3941 | ssl->record_padding_cb = cb; | |
3942 | } | |
3943 | ||
3944 | void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg) | |
3945 | { | |
3946 | ssl->record_padding_arg = arg; | |
3947 | } | |
3948 | ||
3949 | void *SSL_get_record_padding_callback_arg(SSL *ssl) | |
3950 | { | |
3951 | return ssl->record_padding_arg; | |
3952 | } | |
3953 | ||
3954 | int SSL_set_block_padding(SSL *ssl, size_t block_size) | |
3955 | { | |
3956 | /* block size of 0 or 1 is basically no padding */ | |
3957 | if (block_size == 1) | |
3958 | ssl->block_padding = 0; | |
3959 | else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH) | |
3960 | ssl->block_padding = block_size; | |
3961 | else | |
3962 | return 0; | |
3963 | return 1; | |
3964 | } | |
3965 | ||
0f113f3e MC |
3966 | /* |
3967 | * Allocates new EVP_MD_CTX and sets pointer to it into given pointer | |
8483a003 | 3968 | * variable, freeing EVP_MD_CTX previously stored in that variable, if any. |
69687aa8 | 3969 | * If EVP_MD pointer is passed, initializes ctx with this |md|. |
48722ff5 | 3970 | * Returns the newly allocated ctx; |
8671b898 | 3971 | */ |
b948e2c5 | 3972 | |
0f113f3e | 3973 | EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md) |
b948e2c5 | 3974 | { |
0f113f3e | 3975 | ssl_clear_hash_ctx(hash); |
bfb0641f | 3976 | *hash = EVP_MD_CTX_new(); |
5f3d93e4 | 3977 | if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) { |
bfb0641f | 3978 | EVP_MD_CTX_free(*hash); |
5f3d93e4 MC |
3979 | *hash = NULL; |
3980 | return NULL; | |
3981 | } | |
0f113f3e | 3982 | return *hash; |
b948e2c5 | 3983 | } |
0f113f3e MC |
3984 | |
3985 | void ssl_clear_hash_ctx(EVP_MD_CTX **hash) | |
b948e2c5 DSH |
3986 | { |
3987 | ||
0d9824c1 | 3988 | EVP_MD_CTX_free(*hash); |
0f113f3e | 3989 | *hash = NULL; |
b948e2c5 | 3990 | } |
a661b653 | 3991 | |
48fbcbac | 3992 | /* Retrieve handshake hashes */ |
8c1a5343 MC |
3993 | int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen, |
3994 | size_t *hashlen) | |
48fbcbac | 3995 | { |
6e59a892 | 3996 | EVP_MD_CTX *ctx = NULL; |
28ba2541 | 3997 | EVP_MD_CTX *hdgst = s->s3->handshake_dgst; |
8c1a5343 MC |
3998 | int hashleni = EVP_MD_CTX_size(hdgst); |
3999 | int ret = 0; | |
4000 | ||
4001 | if (hashleni < 0 || (size_t)hashleni > outlen) | |
28ba2541 | 4002 | goto err; |
8c1a5343 | 4003 | |
bfb0641f | 4004 | ctx = EVP_MD_CTX_new(); |
8c1a5343 | 4005 | if (ctx == NULL) |
6e59a892 | 4006 | goto err; |
8c1a5343 | 4007 | |
6e59a892 RL |
4008 | if (!EVP_MD_CTX_copy_ex(ctx, hdgst) |
4009 | || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) | |
8c1a5343 MC |
4010 | goto err; |
4011 | ||
4012 | *hashlen = hashleni; | |
4013 | ||
4014 | ret = 1; | |
48fbcbac | 4015 | err: |
bfb0641f | 4016 | EVP_MD_CTX_free(ctx); |
48fbcbac DSH |
4017 | return ret; |
4018 | } | |
4019 | ||
b577fd0b | 4020 | int SSL_session_reused(SSL *s) |
0f113f3e MC |
4021 | { |
4022 | return s->hit; | |
4023 | } | |
08557cf2 | 4024 | |
69443116 | 4025 | int SSL_is_server(const SSL *s) |
0f113f3e MC |
4026 | { |
4027 | return s->server; | |
4028 | } | |
87adf1fa | 4029 | |
47153c72 RS |
4030 | #if OPENSSL_API_COMPAT < 0x10100000L |
4031 | void SSL_set_debug(SSL *s, int debug) | |
4032 | { | |
4033 | /* Old function was do-nothing anyway... */ | |
4034 | (void)s; | |
4035 | (void)debug; | |
4036 | } | |
4037 | #endif | |
4038 | ||
b362ccab | 4039 | void SSL_set_security_level(SSL *s, int level) |
0f113f3e MC |
4040 | { |
4041 | s->cert->sec_level = level; | |
4042 | } | |
b362ccab DSH |
4043 | |
4044 | int SSL_get_security_level(const SSL *s) | |
0f113f3e MC |
4045 | { |
4046 | return s->cert->sec_level; | |
4047 | } | |
b362ccab | 4048 | |
0f113f3e | 4049 | void SSL_set_security_callback(SSL *s, |
a230b26e EK |
4050 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
4051 | int op, int bits, int nid, | |
4052 | void *other, void *ex)) | |
0f113f3e MC |
4053 | { |
4054 | s->cert->sec_cb = cb; | |
4055 | } | |
b362ccab | 4056 | |
a230b26e EK |
4057 | int (*SSL_get_security_callback(const SSL *s)) (const SSL *s, |
4058 | const SSL_CTX *ctx, int op, | |
4059 | int bits, int nid, void *other, | |
4060 | void *ex) { | |
0f113f3e MC |
4061 | return s->cert->sec_cb; |
4062 | } | |
b362ccab DSH |
4063 | |
4064 | void SSL_set0_security_ex_data(SSL *s, void *ex) | |
0f113f3e MC |
4065 | { |
4066 | s->cert->sec_ex = ex; | |
4067 | } | |
b362ccab DSH |
4068 | |
4069 | void *SSL_get0_security_ex_data(const SSL *s) | |
0f113f3e MC |
4070 | { |
4071 | return s->cert->sec_ex; | |
4072 | } | |
b362ccab DSH |
4073 | |
4074 | void SSL_CTX_set_security_level(SSL_CTX *ctx, int level) | |
0f113f3e MC |
4075 | { |
4076 | ctx->cert->sec_level = level; | |
4077 | } | |
b362ccab DSH |
4078 | |
4079 | int SSL_CTX_get_security_level(const SSL_CTX *ctx) | |
0f113f3e MC |
4080 | { |
4081 | return ctx->cert->sec_level; | |
4082 | } | |
b362ccab | 4083 | |
0f113f3e | 4084 | void SSL_CTX_set_security_callback(SSL_CTX *ctx, |
a230b26e EK |
4085 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
4086 | int op, int bits, int nid, | |
4087 | void *other, void *ex)) | |
0f113f3e MC |
4088 | { |
4089 | ctx->cert->sec_cb = cb; | |
4090 | } | |
b362ccab | 4091 | |
e4646a89 KR |
4092 | int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s, |
4093 | const SSL_CTX *ctx, | |
0f113f3e MC |
4094 | int op, int bits, |
4095 | int nid, | |
4096 | void *other, | |
4097 | void *ex) { | |
4098 | return ctx->cert->sec_cb; | |
4099 | } | |
b362ccab DSH |
4100 | |
4101 | void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex) | |
0f113f3e MC |
4102 | { |
4103 | ctx->cert->sec_ex = ex; | |
4104 | } | |
b362ccab DSH |
4105 | |
4106 | void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx) | |
0f113f3e MC |
4107 | { |
4108 | return ctx->cert->sec_ex; | |
4109 | } | |
b362ccab | 4110 | |
8106cb8b VD |
4111 | /* |
4112 | * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that | |
4113 | * can return unsigned long, instead of the generic long return value from the | |
4114 | * control interface. | |
4115 | */ | |
4116 | unsigned long SSL_CTX_get_options(const SSL_CTX *ctx) | |
4117 | { | |
4118 | return ctx->options; | |
4119 | } | |
a230b26e EK |
4120 | |
4121 | unsigned long SSL_get_options(const SSL *s) | |
8106cb8b VD |
4122 | { |
4123 | return s->options; | |
4124 | } | |
a230b26e | 4125 | |
8106cb8b VD |
4126 | unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op) |
4127 | { | |
4128 | return ctx->options |= op; | |
4129 | } | |
a230b26e | 4130 | |
8106cb8b VD |
4131 | unsigned long SSL_set_options(SSL *s, unsigned long op) |
4132 | { | |
4133 | return s->options |= op; | |
4134 | } | |
a230b26e | 4135 | |
8106cb8b VD |
4136 | unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op) |
4137 | { | |
4138 | return ctx->options &= ~op; | |
4139 | } | |
a230b26e | 4140 | |
8106cb8b VD |
4141 | unsigned long SSL_clear_options(SSL *s, unsigned long op) |
4142 | { | |
4143 | return s->options &= ~op; | |
4144 | } | |
4145 | ||
696178ed DSH |
4146 | STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s) |
4147 | { | |
4148 | return s->verified_chain; | |
4149 | } | |
4150 | ||
0f113f3e | 4151 | IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); |
ed29e82a RP |
4152 | |
4153 | #ifndef OPENSSL_NO_CT | |
4154 | ||
4155 | /* | |
4156 | * Moves SCTs from the |src| stack to the |dst| stack. | |
4157 | * The source of each SCT will be set to |origin|. | |
4158 | * If |dst| points to a NULL pointer, a new stack will be created and owned by | |
4159 | * the caller. | |
4160 | * Returns the number of SCTs moved, or a negative integer if an error occurs. | |
4161 | */ | |
a230b26e EK |
4162 | static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src, |
4163 | sct_source_t origin) | |
ed29e82a RP |
4164 | { |
4165 | int scts_moved = 0; | |
4166 | SCT *sct = NULL; | |
4167 | ||
4168 | if (*dst == NULL) { | |
4169 | *dst = sk_SCT_new_null(); | |
4170 | if (*dst == NULL) { | |
4171 | SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE); | |
4172 | goto err; | |
4173 | } | |
4174 | } | |
4175 | ||
4176 | while ((sct = sk_SCT_pop(src)) != NULL) { | |
4177 | if (SCT_set_source(sct, origin) != 1) | |
4178 | goto err; | |
4179 | ||
4180 | if (sk_SCT_push(*dst, sct) <= 0) | |
4181 | goto err; | |
4182 | scts_moved += 1; | |
4183 | } | |
4184 | ||
4185 | return scts_moved; | |
a230b26e | 4186 | err: |
ed29e82a | 4187 | if (sct != NULL) |
a230b26e | 4188 | sk_SCT_push(src, sct); /* Put the SCT back */ |
cc7113e8 | 4189 | return -1; |
ed29e82a RP |
4190 | } |
4191 | ||
4192 | /* | |
a230b26e | 4193 | * Look for data collected during ServerHello and parse if found. |
6b13bd1d | 4194 | * Returns the number of SCTs extracted. |
a230b26e | 4195 | */ |
ed29e82a RP |
4196 | static int ct_extract_tls_extension_scts(SSL *s) |
4197 | { | |
4198 | int scts_extracted = 0; | |
4199 | ||
aff8c126 RS |
4200 | if (s->ext.scts != NULL) { |
4201 | const unsigned char *p = s->ext.scts; | |
4202 | STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len); | |
ed29e82a RP |
4203 | |
4204 | scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION); | |
4205 | ||
4206 | SCT_LIST_free(scts); | |
4207 | } | |
4208 | ||
4209 | return scts_extracted; | |
4210 | } | |
4211 | ||
4212 | /* | |
4213 | * Checks for an OCSP response and then attempts to extract any SCTs found if it | |
4214 | * contains an SCT X509 extension. They will be stored in |s->scts|. | |
4215 | * Returns: | |
4216 | * - The number of SCTs extracted, assuming an OCSP response exists. | |
4217 | * - 0 if no OCSP response exists or it contains no SCTs. | |
4218 | * - A negative integer if an error occurs. | |
4219 | */ | |
4220 | static int ct_extract_ocsp_response_scts(SSL *s) | |
4221 | { | |
a230b26e | 4222 | # ifndef OPENSSL_NO_OCSP |
ed29e82a RP |
4223 | int scts_extracted = 0; |
4224 | const unsigned char *p; | |
4225 | OCSP_BASICRESP *br = NULL; | |
4226 | OCSP_RESPONSE *rsp = NULL; | |
4227 | STACK_OF(SCT) *scts = NULL; | |
4228 | int i; | |
4229 | ||
aff8c126 | 4230 | if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0) |
ed29e82a RP |
4231 | goto err; |
4232 | ||
aff8c126 RS |
4233 | p = s->ext.ocsp.resp; |
4234 | rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len); | |
ed29e82a RP |
4235 | if (rsp == NULL) |
4236 | goto err; | |
4237 | ||
4238 | br = OCSP_response_get1_basic(rsp); | |
4239 | if (br == NULL) | |
4240 | goto err; | |
4241 | ||
4242 | for (i = 0; i < OCSP_resp_count(br); ++i) { | |
4243 | OCSP_SINGLERESP *single = OCSP_resp_get0(br, i); | |
4244 | ||
4245 | if (single == NULL) | |
4246 | continue; | |
4247 | ||
a230b26e EK |
4248 | scts = |
4249 | OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL); | |
4250 | scts_extracted = | |
4251 | ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE); | |
ed29e82a RP |
4252 | if (scts_extracted < 0) |
4253 | goto err; | |
4254 | } | |
a230b26e | 4255 | err: |
ed29e82a RP |
4256 | SCT_LIST_free(scts); |
4257 | OCSP_BASICRESP_free(br); | |
4258 | OCSP_RESPONSE_free(rsp); | |
4259 | return scts_extracted; | |
a230b26e | 4260 | # else |
3e41ac35 MC |
4261 | /* Behave as if no OCSP response exists */ |
4262 | return 0; | |
a230b26e | 4263 | # endif |
ed29e82a RP |
4264 | } |
4265 | ||
4266 | /* | |
4267 | * Attempts to extract SCTs from the peer certificate. | |
4268 | * Return the number of SCTs extracted, or a negative integer if an error | |
4269 | * occurs. | |
4270 | */ | |
4271 | static int ct_extract_x509v3_extension_scts(SSL *s) | |
4272 | { | |
4273 | int scts_extracted = 0; | |
3f3c7d26 | 4274 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
ed29e82a RP |
4275 | |
4276 | if (cert != NULL) { | |
4277 | STACK_OF(SCT) *scts = | |
4278 | X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL); | |
4279 | ||
4280 | scts_extracted = | |
4281 | ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION); | |
4282 | ||
4283 | SCT_LIST_free(scts); | |
4284 | } | |
4285 | ||
4286 | return scts_extracted; | |
4287 | } | |
4288 | ||
4289 | /* | |
4290 | * Attempts to find all received SCTs by checking TLS extensions, the OCSP | |
4291 | * response (if it exists) and X509v3 extensions in the certificate. | |
4292 | * Returns NULL if an error occurs. | |
4293 | */ | |
4294 | const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s) | |
4295 | { | |
4296 | if (!s->scts_parsed) { | |
4297 | if (ct_extract_tls_extension_scts(s) < 0 || | |
4298 | ct_extract_ocsp_response_scts(s) < 0 || | |
4299 | ct_extract_x509v3_extension_scts(s) < 0) | |
4300 | goto err; | |
4301 | ||
4302 | s->scts_parsed = 1; | |
4303 | } | |
4304 | return s->scts; | |
a230b26e | 4305 | err: |
ed29e82a RP |
4306 | return NULL; |
4307 | } | |
4308 | ||
a230b26e | 4309 | static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx, |
43341433 | 4310 | const STACK_OF(SCT) *scts, void *unused_arg) |
ed29e82a | 4311 | { |
43341433 VD |
4312 | return 1; |
4313 | } | |
4314 | ||
a230b26e | 4315 | static int ct_strict(const CT_POLICY_EVAL_CTX * ctx, |
43341433 VD |
4316 | const STACK_OF(SCT) *scts, void *unused_arg) |
4317 | { | |
4318 | int count = scts != NULL ? sk_SCT_num(scts) : 0; | |
4319 | int i; | |
ed29e82a | 4320 | |
43341433 VD |
4321 | for (i = 0; i < count; ++i) { |
4322 | SCT *sct = sk_SCT_value(scts, i); | |
4323 | int status = SCT_get_validation_status(sct); | |
4324 | ||
4325 | if (status == SCT_VALIDATION_STATUS_VALID) | |
4326 | return 1; | |
4327 | } | |
4328 | SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS); | |
4329 | return 0; | |
4330 | } | |
4331 | ||
4332 | int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback, | |
4333 | void *arg) | |
4334 | { | |
ed29e82a RP |
4335 | /* |
4336 | * Since code exists that uses the custom extension handler for CT, look | |
4337 | * for this and throw an error if they have already registered to use CT. | |
4338 | */ | |
4339 | if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx, | |
a230b26e EK |
4340 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4341 | { | |
ed29e82a RP |
4342 | SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK, |
4343 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4344 | return 0; |
ed29e82a RP |
4345 | } |
4346 | ||
ed29e82a | 4347 | if (callback != NULL) { |
a230b26e EK |
4348 | /* |
4349 | * If we are validating CT, then we MUST accept SCTs served via OCSP | |
4350 | */ | |
ed29e82a | 4351 | if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp)) |
43341433 | 4352 | return 0; |
ed29e82a RP |
4353 | } |
4354 | ||
43341433 VD |
4355 | s->ct_validation_callback = callback; |
4356 | s->ct_validation_callback_arg = arg; | |
4357 | ||
4358 | return 1; | |
ed29e82a RP |
4359 | } |
4360 | ||
43341433 | 4361 | int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx, |
a230b26e | 4362 | ssl_ct_validation_cb callback, void *arg) |
ed29e82a | 4363 | { |
ed29e82a RP |
4364 | /* |
4365 | * Since code exists that uses the custom extension handler for CT, look for | |
4366 | * this and throw an error if they have already registered to use CT. | |
4367 | */ | |
4368 | if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx, | |
a230b26e EK |
4369 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4370 | { | |
ed29e82a RP |
4371 | SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK, |
4372 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4373 | return 0; |
ed29e82a RP |
4374 | } |
4375 | ||
4376 | ctx->ct_validation_callback = callback; | |
4377 | ctx->ct_validation_callback_arg = arg; | |
43341433 | 4378 | return 1; |
ed29e82a RP |
4379 | } |
4380 | ||
43341433 | 4381 | int SSL_ct_is_enabled(const SSL *s) |
ed29e82a | 4382 | { |
43341433 | 4383 | return s->ct_validation_callback != NULL; |
ed29e82a RP |
4384 | } |
4385 | ||
43341433 | 4386 | int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx) |
ed29e82a | 4387 | { |
43341433 | 4388 | return ctx->ct_validation_callback != NULL; |
ed29e82a RP |
4389 | } |
4390 | ||
4d482ee2 | 4391 | int ssl_validate_ct(SSL *s) |
ed29e82a RP |
4392 | { |
4393 | int ret = 0; | |
3f3c7d26 | 4394 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
43341433 | 4395 | X509 *issuer; |
b9aec69a | 4396 | SSL_DANE *dane = &s->dane; |
ed29e82a RP |
4397 | CT_POLICY_EVAL_CTX *ctx = NULL; |
4398 | const STACK_OF(SCT) *scts; | |
4399 | ||
43341433 VD |
4400 | /* |
4401 | * If no callback is set, the peer is anonymous, or its chain is invalid, | |
4402 | * skip SCT validation - just return success. Applications that continue | |
4403 | * handshakes without certificates, with unverified chains, or pinned leaf | |
4404 | * certificates are outside the scope of the WebPKI and CT. | |
4405 | * | |
4406 | * The above exclusions notwithstanding the vast majority of peers will | |
4407 | * have rather ordinary certificate chains validated by typical | |
4408 | * applications that perform certificate verification and therefore will | |
4409 | * process SCTs when enabled. | |
4410 | */ | |
4411 | if (s->ct_validation_callback == NULL || cert == NULL || | |
4412 | s->verify_result != X509_V_OK || | |
a230b26e | 4413 | s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1) |
ed29e82a RP |
4414 | return 1; |
4415 | ||
43341433 VD |
4416 | /* |
4417 | * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3) | |
4418 | * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2 | |
4419 | */ | |
4420 | if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) { | |
4421 | switch (dane->mtlsa->usage) { | |
4422 | case DANETLS_USAGE_DANE_TA: | |
4423 | case DANETLS_USAGE_DANE_EE: | |
4424 | return 1; | |
4425 | } | |
ed29e82a RP |
4426 | } |
4427 | ||
ed29e82a RP |
4428 | ctx = CT_POLICY_EVAL_CTX_new(); |
4429 | if (ctx == NULL) { | |
4430 | SSLerr(SSL_F_SSL_VALIDATE_CT, ERR_R_MALLOC_FAILURE); | |
4431 | goto end; | |
4432 | } | |
4433 | ||
43341433 | 4434 | issuer = sk_X509_value(s->verified_chain, 1); |
a1bb7708 RP |
4435 | CT_POLICY_EVAL_CTX_set1_cert(ctx, cert); |
4436 | CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer); | |
4437 | CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx, s->ctx->ctlog_store); | |
6a71e06d RP |
4438 | CT_POLICY_EVAL_CTX_set_time( |
4439 | ctx, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s)) * 1000); | |
ed29e82a RP |
4440 | |
4441 | scts = SSL_get0_peer_scts(s); | |
4442 | ||
43341433 VD |
4443 | /* |
4444 | * This function returns success (> 0) only when all the SCTs are valid, 0 | |
4445 | * when some are invalid, and < 0 on various internal errors (out of | |
4446 | * memory, etc.). Having some, or even all, invalid SCTs is not sufficient | |
4447 | * reason to abort the handshake, that decision is up to the callback. | |
4448 | * Therefore, we error out only in the unexpected case that the return | |
4449 | * value is negative. | |
4450 | * | |
4451 | * XXX: One might well argue that the return value of this function is an | |
f430ba31 | 4452 | * unfortunate design choice. Its job is only to determine the validation |
43341433 VD |
4453 | * status of each of the provided SCTs. So long as it correctly separates |
4454 | * the wheat from the chaff it should return success. Failure in this case | |
4455 | * ought to correspond to an inability to carry out its duties. | |
4456 | */ | |
4457 | if (SCT_LIST_validate(scts, ctx) < 0) { | |
ed29e82a RP |
4458 | SSLerr(SSL_F_SSL_VALIDATE_CT, SSL_R_SCT_VERIFICATION_FAILED); |
4459 | goto end; | |
4460 | } | |
4461 | ||
4462 | ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg); | |
4463 | if (ret < 0) | |
a230b26e | 4464 | ret = 0; /* This function returns 0 on failure */ |
ed29e82a | 4465 | |
a230b26e | 4466 | end: |
ed29e82a | 4467 | CT_POLICY_EVAL_CTX_free(ctx); |
f75b34c8 VD |
4468 | /* |
4469 | * With SSL_VERIFY_NONE the session may be cached and re-used despite a | |
4470 | * failure return code here. Also the application may wish the complete | |
4471 | * the handshake, and then disconnect cleanly at a higher layer, after | |
4472 | * checking the verification status of the completed connection. | |
4473 | * | |
4474 | * We therefore force a certificate verification failure which will be | |
4475 | * visible via SSL_get_verify_result() and cached as part of any resumed | |
4476 | * session. | |
4477 | * | |
4478 | * Note: the permissive callback is for information gathering only, always | |
4479 | * returns success, and does not affect verification status. Only the | |
4480 | * strict callback or a custom application-specified callback can trigger | |
4481 | * connection failure or record a verification error. | |
4482 | */ | |
4483 | if (ret <= 0) | |
4484 | s->verify_result = X509_V_ERR_NO_VALID_SCTS; | |
ed29e82a RP |
4485 | return ret; |
4486 | } | |
4487 | ||
43341433 VD |
4488 | int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode) |
4489 | { | |
4490 | switch (validation_mode) { | |
4491 | default: | |
4492 | SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
4493 | return 0; | |
4494 | case SSL_CT_VALIDATION_PERMISSIVE: | |
4495 | return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL); | |
4496 | case SSL_CT_VALIDATION_STRICT: | |
4497 | return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL); | |
4498 | } | |
4499 | } | |
4500 | ||
4501 | int SSL_enable_ct(SSL *s, int validation_mode) | |
4502 | { | |
4503 | switch (validation_mode) { | |
4504 | default: | |
4505 | SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
4506 | return 0; | |
4507 | case SSL_CT_VALIDATION_PERMISSIVE: | |
4508 | return SSL_set_ct_validation_callback(s, ct_permissive, NULL); | |
4509 | case SSL_CT_VALIDATION_STRICT: | |
4510 | return SSL_set_ct_validation_callback(s, ct_strict, NULL); | |
4511 | } | |
4512 | } | |
4513 | ||
ed29e82a RP |
4514 | int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx) |
4515 | { | |
328f36c5 | 4516 | return CTLOG_STORE_load_default_file(ctx->ctlog_store); |
ed29e82a RP |
4517 | } |
4518 | ||
4519 | int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path) | |
4520 | { | |
4521 | return CTLOG_STORE_load_file(ctx->ctlog_store, path); | |
4522 | } | |
4523 | ||
a230b26e | 4524 | void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs) |
8359b57f RP |
4525 | { |
4526 | CTLOG_STORE_free(ctx->ctlog_store); | |
4527 | ctx->ctlog_store = logs; | |
4528 | } | |
4529 | ||
4530 | const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx) | |
4531 | { | |
4532 | return ctx->ctlog_store; | |
4533 | } | |
4534 | ||
6b1bb98f BK |
4535 | #endif /* OPENSSL_NO_CT */ |
4536 | ||
4537 | void SSL_CTX_set_early_cb(SSL_CTX *c, SSL_early_cb_fn cb, void *arg) | |
4538 | { | |
4539 | c->early_cb = cb; | |
4540 | c->early_cb_arg = arg; | |
4541 | } | |
4542 | ||
4543 | int SSL_early_isv2(SSL *s) | |
4544 | { | |
4545 | if (s->clienthello == NULL) | |
4546 | return 0; | |
4547 | return s->clienthello->isv2; | |
4548 | } | |
4549 | ||
4550 | unsigned int SSL_early_get0_legacy_version(SSL *s) | |
4551 | { | |
4552 | if (s->clienthello == NULL) | |
4553 | return 0; | |
4554 | return s->clienthello->legacy_version; | |
4555 | } | |
4556 | ||
4557 | size_t SSL_early_get0_random(SSL *s, const unsigned char **out) | |
4558 | { | |
4559 | if (s->clienthello == NULL) | |
4560 | return 0; | |
4561 | if (out != NULL) | |
4562 | *out = s->clienthello->random; | |
4563 | return SSL3_RANDOM_SIZE; | |
4564 | } | |
4565 | ||
4566 | size_t SSL_early_get0_session_id(SSL *s, const unsigned char **out) | |
4567 | { | |
4568 | if (s->clienthello == NULL) | |
4569 | return 0; | |
4570 | if (out != NULL) | |
4571 | *out = s->clienthello->session_id; | |
4572 | return s->clienthello->session_id_len; | |
4573 | } | |
4574 | ||
4575 | size_t SSL_early_get0_ciphers(SSL *s, const unsigned char **out) | |
4576 | { | |
4577 | if (s->clienthello == NULL) | |
4578 | return 0; | |
4579 | if (out != NULL) | |
4580 | *out = PACKET_data(&s->clienthello->ciphersuites); | |
4581 | return PACKET_remaining(&s->clienthello->ciphersuites); | |
4582 | } | |
4583 | ||
4584 | size_t SSL_early_get0_compression_methods(SSL *s, const unsigned char **out) | |
4585 | { | |
4586 | if (s->clienthello == NULL) | |
4587 | return 0; | |
4588 | if (out != NULL) | |
4589 | *out = s->clienthello->compressions; | |
4590 | return s->clienthello->compressions_len; | |
4591 | } | |
4592 | ||
4593 | int SSL_early_get0_ext(SSL *s, unsigned int type, const unsigned char **out, | |
4594 | size_t *outlen) | |
4595 | { | |
4596 | size_t i; | |
4597 | RAW_EXTENSION *r; | |
4598 | ||
4599 | if (s->clienthello == NULL) | |
4600 | return 0; | |
4601 | for (i = 0; i < s->clienthello->pre_proc_exts_len; ++i) { | |
4602 | r = s->clienthello->pre_proc_exts + i; | |
4603 | if (r->present && r->type == type) { | |
4604 | if (out != NULL) | |
4605 | *out = PACKET_data(&r->data); | |
4606 | if (outlen != NULL) | |
4607 | *outlen = PACKET_remaining(&r->data); | |
4608 | return 1; | |
4609 | } | |
4610 | } | |
4611 | return 0; | |
4612 | } | |
2faa1b48 CB |
4613 | |
4614 | void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb) | |
4615 | { | |
4616 | ctx->keylog_callback = cb; | |
4617 | } | |
4618 | ||
4619 | SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx) | |
4620 | { | |
4621 | return ctx->keylog_callback; | |
4622 | } | |
4623 | ||
4624 | static int nss_keylog_int(const char *prefix, | |
4625 | SSL *ssl, | |
4626 | const uint8_t *parameter_1, | |
4627 | size_t parameter_1_len, | |
4628 | const uint8_t *parameter_2, | |
4629 | size_t parameter_2_len) | |
4630 | { | |
4631 | char *out = NULL; | |
4632 | char *cursor = NULL; | |
4633 | size_t out_len = 0; | |
4634 | size_t i; | |
4635 | size_t prefix_len; | |
4636 | ||
4637 | if (ssl->ctx->keylog_callback == NULL) return 1; | |
4638 | ||
4639 | /* | |
4640 | * Our output buffer will contain the following strings, rendered with | |
4641 | * space characters in between, terminated by a NULL character: first the | |
4642 | * prefix, then the first parameter, then the second parameter. The | |
4643 | * meaning of each parameter depends on the specific key material being | |
4644 | * logged. Note that the first and second parameters are encoded in | |
4645 | * hexadecimal, so we need a buffer that is twice their lengths. | |
4646 | */ | |
4647 | prefix_len = strlen(prefix); | |
4648 | out_len = prefix_len + (2*parameter_1_len) + (2*parameter_2_len) + 3; | |
4649 | if ((out = cursor = OPENSSL_malloc(out_len)) == NULL) { | |
4650 | SSLerr(SSL_F_NSS_KEYLOG_INT, ERR_R_MALLOC_FAILURE); | |
4651 | return 0; | |
4652 | } | |
4653 | ||
4654 | strcpy(cursor, prefix); | |
4655 | cursor += prefix_len; | |
4656 | *cursor++ = ' '; | |
4657 | ||
4658 | for (i = 0; i < parameter_1_len; i++) { | |
4659 | sprintf(cursor, "%02x", parameter_1[i]); | |
4660 | cursor += 2; | |
4661 | } | |
4662 | *cursor++ = ' '; | |
4663 | ||
4664 | for (i = 0; i < parameter_2_len; i++) { | |
4665 | sprintf(cursor, "%02x", parameter_2[i]); | |
4666 | cursor += 2; | |
4667 | } | |
4668 | *cursor = '\0'; | |
4669 | ||
4670 | ssl->ctx->keylog_callback(ssl, (const char *)out); | |
4671 | OPENSSL_free(out); | |
4672 | return 1; | |
4673 | ||
4674 | } | |
4675 | ||
4676 | int ssl_log_rsa_client_key_exchange(SSL *ssl, | |
4677 | const uint8_t *encrypted_premaster, | |
4678 | size_t encrypted_premaster_len, | |
4679 | const uint8_t *premaster, | |
4680 | size_t premaster_len) | |
4681 | { | |
4682 | if (encrypted_premaster_len < 8) { | |
4683 | SSLerr(SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR); | |
4684 | return 0; | |
4685 | } | |
4686 | ||
f0deb4d3 | 4687 | /* We only want the first 8 bytes of the encrypted premaster as a tag. */ |
2faa1b48 CB |
4688 | return nss_keylog_int("RSA", |
4689 | ssl, | |
4690 | encrypted_premaster, | |
f0deb4d3 | 4691 | 8, |
2faa1b48 CB |
4692 | premaster, |
4693 | premaster_len); | |
4694 | } | |
4695 | ||
2c7bd692 CB |
4696 | int ssl_log_secret(SSL *ssl, |
4697 | const char *label, | |
4698 | const uint8_t *secret, | |
4699 | size_t secret_len) | |
2faa1b48 | 4700 | { |
2c7bd692 | 4701 | return nss_keylog_int(label, |
2faa1b48 | 4702 | ssl, |
2c7bd692 CB |
4703 | ssl->s3->client_random, |
4704 | SSL3_RANDOM_SIZE, | |
4705 | secret, | |
4706 | secret_len); | |
2faa1b48 CB |
4707 | } |
4708 | ||
ccb8e6e0 BK |
4709 | #define SSLV2_CIPHER_LEN 3 |
4710 | ||
90134d98 BK |
4711 | int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites, int sslv2format, |
4712 | int *al) | |
ccb8e6e0 | 4713 | { |
ccb8e6e0 | 4714 | int n; |
ccb8e6e0 BK |
4715 | |
4716 | n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN; | |
4717 | ||
4718 | if (PACKET_remaining(cipher_suites) == 0) { | |
90134d98 | 4719 | SSLerr(SSL_F_SSL_CACHE_CIPHERLIST, SSL_R_NO_CIPHERS_SPECIFIED); |
ccb8e6e0 | 4720 | *al = SSL_AD_ILLEGAL_PARAMETER; |
90134d98 | 4721 | return 0; |
ccb8e6e0 BK |
4722 | } |
4723 | ||
4724 | if (PACKET_remaining(cipher_suites) % n != 0) { | |
90134d98 | 4725 | SSLerr(SSL_F_SSL_CACHE_CIPHERLIST, |
ccb8e6e0 BK |
4726 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); |
4727 | *al = SSL_AD_DECODE_ERROR; | |
90134d98 | 4728 | return 0; |
ccb8e6e0 BK |
4729 | } |
4730 | ||
4731 | OPENSSL_free(s->s3->tmp.ciphers_raw); | |
4732 | s->s3->tmp.ciphers_raw = NULL; | |
4733 | s->s3->tmp.ciphers_rawlen = 0; | |
4734 | ||
4735 | if (sslv2format) { | |
4736 | size_t numciphers = PACKET_remaining(cipher_suites) / n; | |
4737 | PACKET sslv2ciphers = *cipher_suites; | |
4738 | unsigned int leadbyte; | |
4739 | unsigned char *raw; | |
4740 | ||
4741 | /* | |
4742 | * We store the raw ciphers list in SSLv3+ format so we need to do some | |
4743 | * preprocessing to convert the list first. If there are any SSLv2 only | |
4744 | * ciphersuites with a non-zero leading byte then we are going to | |
4745 | * slightly over allocate because we won't store those. But that isn't a | |
4746 | * problem. | |
4747 | */ | |
4748 | raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN); | |
4749 | s->s3->tmp.ciphers_raw = raw; | |
4750 | if (raw == NULL) { | |
4751 | *al = SSL_AD_INTERNAL_ERROR; | |
4752 | goto err; | |
4753 | } | |
4754 | for (s->s3->tmp.ciphers_rawlen = 0; | |
4755 | PACKET_remaining(&sslv2ciphers) > 0; | |
4756 | raw += TLS_CIPHER_LEN) { | |
4757 | if (!PACKET_get_1(&sslv2ciphers, &leadbyte) | |
4758 | || (leadbyte == 0 | |
4759 | && !PACKET_copy_bytes(&sslv2ciphers, raw, | |
4760 | TLS_CIPHER_LEN)) | |
4761 | || (leadbyte != 0 | |
4762 | && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) { | |
fb34a0f4 | 4763 | *al = SSL_AD_DECODE_ERROR; |
ccb8e6e0 BK |
4764 | OPENSSL_free(s->s3->tmp.ciphers_raw); |
4765 | s->s3->tmp.ciphers_raw = NULL; | |
4766 | s->s3->tmp.ciphers_rawlen = 0; | |
4767 | goto err; | |
4768 | } | |
4769 | if (leadbyte == 0) | |
4770 | s->s3->tmp.ciphers_rawlen += TLS_CIPHER_LEN; | |
4771 | } | |
4772 | } else if (!PACKET_memdup(cipher_suites, &s->s3->tmp.ciphers_raw, | |
4773 | &s->s3->tmp.ciphers_rawlen)) { | |
4774 | *al = SSL_AD_INTERNAL_ERROR; | |
4775 | goto err; | |
4776 | } | |
90134d98 BK |
4777 | return 1; |
4778 | err: | |
4779 | return 0; | |
4780 | } | |
4781 | ||
4782 | int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len, | |
4783 | int isv2format, STACK_OF(SSL_CIPHER) **sk, | |
4784 | STACK_OF(SSL_CIPHER) **scsvs) | |
4785 | { | |
4786 | int alert; | |
4787 | PACKET pkt; | |
4788 | ||
4789 | if (!PACKET_buf_init(&pkt, bytes, len)) | |
4790 | return 0; | |
4791 | return bytes_to_cipher_list(s, &pkt, sk, scsvs, isv2format, &alert); | |
4792 | } | |
4793 | ||
4794 | int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites, | |
4795 | STACK_OF(SSL_CIPHER) **skp, | |
4796 | STACK_OF(SSL_CIPHER) **scsvs_out, | |
4797 | int sslv2format, int *al) | |
4798 | { | |
4799 | const SSL_CIPHER *c; | |
4800 | STACK_OF(SSL_CIPHER) *sk = NULL; | |
4801 | STACK_OF(SSL_CIPHER) *scsvs = NULL; | |
4802 | int n; | |
4803 | /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */ | |
4804 | unsigned char cipher[SSLV2_CIPHER_LEN]; | |
4805 | ||
4806 | n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN; | |
4807 | ||
4808 | if (PACKET_remaining(cipher_suites) == 0) { | |
4809 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_NO_CIPHERS_SPECIFIED); | |
4810 | *al = SSL_AD_ILLEGAL_PARAMETER; | |
4811 | return 0; | |
4812 | } | |
4813 | ||
4814 | if (PACKET_remaining(cipher_suites) % n != 0) { | |
4815 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, | |
4816 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); | |
4817 | *al = SSL_AD_DECODE_ERROR; | |
4818 | return 0; | |
4819 | } | |
4820 | ||
4821 | sk = sk_SSL_CIPHER_new_null(); | |
4822 | scsvs = sk_SSL_CIPHER_new_null(); | |
4823 | if (sk == NULL || scsvs == NULL) { | |
4824 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
4825 | *al = SSL_AD_INTERNAL_ERROR; | |
4826 | goto err; | |
4827 | } | |
ccb8e6e0 BK |
4828 | |
4829 | while (PACKET_copy_bytes(cipher_suites, cipher, n)) { | |
4830 | /* | |
4831 | * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the | |
4832 | * first byte set to zero, while true SSLv2 ciphers have a non-zero | |
4833 | * first byte. We don't support any true SSLv2 ciphers, so skip them. | |
4834 | */ | |
4835 | if (sslv2format && cipher[0] != '\0') | |
4836 | continue; | |
4837 | ||
ccb8e6e0 BK |
4838 | /* For SSLv2-compat, ignore leading 0-byte. */ |
4839 | c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1); | |
4840 | if (c != NULL) { | |
90134d98 BK |
4841 | if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) || |
4842 | (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) { | |
ccb8e6e0 BK |
4843 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); |
4844 | *al = SSL_AD_INTERNAL_ERROR; | |
4845 | goto err; | |
4846 | } | |
4847 | } | |
4848 | } | |
4849 | if (PACKET_remaining(cipher_suites) > 0) { | |
fb34a0f4 MC |
4850 | *al = SSL_AD_DECODE_ERROR; |
4851 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_BAD_LENGTH); | |
ccb8e6e0 BK |
4852 | goto err; |
4853 | } | |
4854 | ||
90134d98 BK |
4855 | if (skp != NULL) |
4856 | *skp = sk; | |
4857 | else | |
4858 | sk_SSL_CIPHER_free(sk); | |
4859 | if (scsvs_out != NULL) | |
4860 | *scsvs_out = scsvs; | |
4861 | else | |
4862 | sk_SSL_CIPHER_free(scsvs); | |
4863 | return 1; | |
ccb8e6e0 BK |
4864 | err: |
4865 | sk_SSL_CIPHER_free(sk); | |
90134d98 BK |
4866 | sk_SSL_CIPHER_free(scsvs); |
4867 | return 0; | |
ccb8e6e0 | 4868 | } |
3fc8d856 MC |
4869 | |
4870 | int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data) | |
4871 | { | |
4872 | ctx->max_early_data = max_early_data; | |
4873 | ||
4874 | return 1; | |
4875 | } | |
4876 | ||
46dcb945 | 4877 | uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx) |
3fc8d856 MC |
4878 | { |
4879 | return ctx->max_early_data; | |
4880 | } | |
4881 | ||
4882 | int SSL_set_max_early_data(SSL *s, uint32_t max_early_data) | |
4883 | { | |
4884 | s->max_early_data = max_early_data; | |
4885 | ||
4886 | return 1; | |
4887 | } | |
4888 | ||
a8e75d56 | 4889 | uint32_t SSL_get_max_early_data(const SSL *s) |
3fc8d856 MC |
4890 | { |
4891 | return s->max_early_data; | |
4892 | } |