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0f113f3e | 1 | /* |
846e33c7 | 2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. |
bf21446a | 3 | * |
846e33c7 RS |
4 | * Licensed under the OpenSSL license (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
bf21446a | 8 | */ |
846e33c7 | 9 | |
ea262260 BM |
10 | /* ==================================================================== |
11 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | |
0f113f3e | 12 | * ECC cipher suite support in OpenSSL originally developed by |
ea262260 BM |
13 | * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. |
14 | */ | |
ddac1974 NL |
15 | /* ==================================================================== |
16 | * Copyright 2005 Nokia. All rights reserved. | |
17 | * | |
18 | * The portions of the attached software ("Contribution") is developed by | |
19 | * Nokia Corporation and is licensed pursuant to the OpenSSL open source | |
20 | * license. | |
21 | * | |
22 | * The Contribution, originally written by Mika Kousa and Pasi Eronen of | |
23 | * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites | |
24 | * support (see RFC 4279) to OpenSSL. | |
25 | * | |
26 | * No patent licenses or other rights except those expressly stated in | |
27 | * the OpenSSL open source license shall be deemed granted or received | |
28 | * expressly, by implication, estoppel, or otherwise. | |
29 | * | |
30 | * No assurances are provided by Nokia that the Contribution does not | |
31 | * infringe the patent or other intellectual property rights of any third | |
32 | * party or that the license provides you with all the necessary rights | |
33 | * to make use of the Contribution. | |
34 | * | |
35 | * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN | |
36 | * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA | |
37 | * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY | |
38 | * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR | |
39 | * OTHERWISE. | |
40 | */ | |
bbb8de09 | 41 | |
463a7b8c | 42 | #include <assert.h> |
d02b48c6 | 43 | #include <stdio.h> |
7b63c0fa | 44 | #include "ssl_locl.h" |
ec577822 BM |
45 | #include <openssl/objects.h> |
46 | #include <openssl/lhash.h> | |
bb7cd4e3 | 47 | #include <openssl/x509v3.h> |
6434abbf | 48 | #include <openssl/rand.h> |
67c8e7f4 | 49 | #include <openssl/ocsp.h> |
3c27208f RS |
50 | #include <openssl/dh.h> |
51 | #include <openssl/engine.h> | |
07bbc92c | 52 | #include <openssl/async.h> |
3c27208f | 53 | #include <openssl/ct.h> |
0f113f3e | 54 | |
df2ee0e2 | 55 | const char SSL_version_str[] = OPENSSL_VERSION_TEXT; |
0f113f3e MC |
56 | |
57 | SSL3_ENC_METHOD ssl3_undef_enc_method = { | |
58 | /* | |
59 | * evil casts, but these functions are only called if there's a library | |
60 | * bug | |
61 | */ | |
72716e79 | 62 | (int (*)(SSL *, SSL3_RECORD *, size_t, int))ssl_undefined_function, |
d102d9df | 63 | (int (*)(SSL *, SSL3_RECORD *, unsigned char *, int))ssl_undefined_function, |
0f113f3e | 64 | ssl_undefined_function, |
8c1a5343 | 65 | (int (*)(SSL *, unsigned char *, unsigned char *, size_t, size_t *)) |
0f113f3e MC |
66 | ssl_undefined_function, |
67 | (int (*)(SSL *, int))ssl_undefined_function, | |
6db6bc5a | 68 | (size_t (*)(SSL *, const char *, size_t, unsigned char *)) |
0f113f3e | 69 | ssl_undefined_function, |
0f113f3e MC |
70 | NULL, /* client_finished_label */ |
71 | 0, /* client_finished_label_len */ | |
72 | NULL, /* server_finished_label */ | |
73 | 0, /* server_finished_label_len */ | |
74 | (int (*)(int))ssl_undefined_function, | |
75 | (int (*)(SSL *, unsigned char *, size_t, const char *, | |
76 | size_t, const unsigned char *, size_t, | |
77 | int use_context))ssl_undefined_function, | |
78 | }; | |
d02b48c6 | 79 | |
07bbc92c MC |
80 | struct ssl_async_args { |
81 | SSL *s; | |
82 | void *buf; | |
348240c6 | 83 | size_t num; |
a230b26e | 84 | enum { READFUNC, WRITEFUNC, OTHERFUNC } type; |
add2f5ca | 85 | union { |
eda75751 | 86 | int (*func_read) (SSL *, void *, size_t, size_t *); |
7ee8627f | 87 | int (*func_write) (SSL *, const void *, size_t, size_t *); |
a230b26e | 88 | int (*func_other) (SSL *); |
add2f5ca | 89 | } f; |
07bbc92c MC |
90 | }; |
91 | ||
919ba009 VD |
92 | static const struct { |
93 | uint8_t mtype; | |
94 | uint8_t ord; | |
a230b26e | 95 | int nid; |
919ba009 | 96 | } dane_mds[] = { |
a230b26e EK |
97 | { |
98 | DANETLS_MATCHING_FULL, 0, NID_undef | |
99 | }, | |
100 | { | |
101 | DANETLS_MATCHING_2256, 1, NID_sha256 | |
102 | }, | |
103 | { | |
104 | DANETLS_MATCHING_2512, 2, NID_sha512 | |
105 | }, | |
919ba009 VD |
106 | }; |
107 | ||
108 | static int dane_ctx_enable(struct dane_ctx_st *dctx) | |
109 | { | |
110 | const EVP_MD **mdevp; | |
111 | uint8_t *mdord; | |
112 | uint8_t mdmax = DANETLS_MATCHING_LAST; | |
a230b26e | 113 | int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */ |
919ba009 VD |
114 | size_t i; |
115 | ||
5ae4ceb9 VD |
116 | if (dctx->mdevp != NULL) |
117 | return 1; | |
118 | ||
919ba009 VD |
119 | mdevp = OPENSSL_zalloc(n * sizeof(*mdevp)); |
120 | mdord = OPENSSL_zalloc(n * sizeof(*mdord)); | |
121 | ||
122 | if (mdord == NULL || mdevp == NULL) { | |
b3bd3d5a | 123 | OPENSSL_free(mdord); |
919ba009 VD |
124 | OPENSSL_free(mdevp); |
125 | SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE); | |
126 | return 0; | |
127 | } | |
128 | ||
129 | /* Install default entries */ | |
130 | for (i = 0; i < OSSL_NELEM(dane_mds); ++i) { | |
131 | const EVP_MD *md; | |
132 | ||
133 | if (dane_mds[i].nid == NID_undef || | |
134 | (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL) | |
135 | continue; | |
136 | mdevp[dane_mds[i].mtype] = md; | |
137 | mdord[dane_mds[i].mtype] = dane_mds[i].ord; | |
138 | } | |
139 | ||
140 | dctx->mdevp = mdevp; | |
141 | dctx->mdord = mdord; | |
142 | dctx->mdmax = mdmax; | |
143 | ||
144 | return 1; | |
145 | } | |
146 | ||
147 | static void dane_ctx_final(struct dane_ctx_st *dctx) | |
148 | { | |
149 | OPENSSL_free(dctx->mdevp); | |
150 | dctx->mdevp = NULL; | |
151 | ||
152 | OPENSSL_free(dctx->mdord); | |
153 | dctx->mdord = NULL; | |
154 | dctx->mdmax = 0; | |
155 | } | |
156 | ||
157 | static void tlsa_free(danetls_record *t) | |
158 | { | |
159 | if (t == NULL) | |
160 | return; | |
161 | OPENSSL_free(t->data); | |
162 | EVP_PKEY_free(t->spki); | |
163 | OPENSSL_free(t); | |
164 | } | |
165 | ||
b9aec69a | 166 | static void dane_final(SSL_DANE *dane) |
919ba009 VD |
167 | { |
168 | sk_danetls_record_pop_free(dane->trecs, tlsa_free); | |
169 | dane->trecs = NULL; | |
170 | ||
171 | sk_X509_pop_free(dane->certs, X509_free); | |
172 | dane->certs = NULL; | |
173 | ||
174 | X509_free(dane->mcert); | |
175 | dane->mcert = NULL; | |
176 | dane->mtlsa = NULL; | |
177 | dane->mdpth = -1; | |
178 | dane->pdpth = -1; | |
179 | } | |
180 | ||
181 | /* | |
182 | * dane_copy - Copy dane configuration, sans verification state. | |
183 | */ | |
184 | static int ssl_dane_dup(SSL *to, SSL *from) | |
185 | { | |
186 | int num; | |
187 | int i; | |
188 | ||
189 | if (!DANETLS_ENABLED(&from->dane)) | |
190 | return 1; | |
191 | ||
192 | dane_final(&to->dane); | |
5ae4ceb9 | 193 | to->dane.flags = from->dane.flags; |
9f6b22b8 VD |
194 | to->dane.dctx = &to->ctx->dane; |
195 | to->dane.trecs = sk_danetls_record_new_null(); | |
196 | ||
197 | if (to->dane.trecs == NULL) { | |
198 | SSLerr(SSL_F_SSL_DANE_DUP, ERR_R_MALLOC_FAILURE); | |
199 | return 0; | |
200 | } | |
919ba009 | 201 | |
a230b26e | 202 | num = sk_danetls_record_num(from->dane.trecs); |
919ba009 VD |
203 | for (i = 0; i < num; ++i) { |
204 | danetls_record *t = sk_danetls_record_value(from->dane.trecs, i); | |
9f6b22b8 | 205 | |
919ba009 VD |
206 | if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype, |
207 | t->data, t->dlen) <= 0) | |
208 | return 0; | |
209 | } | |
210 | return 1; | |
211 | } | |
212 | ||
a230b26e EK |
213 | static int dane_mtype_set(struct dane_ctx_st *dctx, |
214 | const EVP_MD *md, uint8_t mtype, uint8_t ord) | |
919ba009 VD |
215 | { |
216 | int i; | |
217 | ||
218 | if (mtype == DANETLS_MATCHING_FULL && md != NULL) { | |
a230b26e | 219 | SSLerr(SSL_F_DANE_MTYPE_SET, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL); |
919ba009 VD |
220 | return 0; |
221 | } | |
222 | ||
223 | if (mtype > dctx->mdmax) { | |
224 | const EVP_MD **mdevp; | |
225 | uint8_t *mdord; | |
a230b26e | 226 | int n = ((int)mtype) + 1; |
919ba009 VD |
227 | |
228 | mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp)); | |
229 | if (mdevp == NULL) { | |
230 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
231 | return -1; | |
232 | } | |
233 | dctx->mdevp = mdevp; | |
234 | ||
235 | mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord)); | |
236 | if (mdord == NULL) { | |
237 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
238 | return -1; | |
239 | } | |
240 | dctx->mdord = mdord; | |
241 | ||
242 | /* Zero-fill any gaps */ | |
a230b26e | 243 | for (i = dctx->mdmax + 1; i < mtype; ++i) { |
919ba009 VD |
244 | mdevp[i] = NULL; |
245 | mdord[i] = 0; | |
246 | } | |
247 | ||
248 | dctx->mdmax = mtype; | |
249 | } | |
250 | ||
251 | dctx->mdevp[mtype] = md; | |
252 | /* Coerce ordinal of disabled matching types to 0 */ | |
253 | dctx->mdord[mtype] = (md == NULL) ? 0 : ord; | |
254 | ||
255 | return 1; | |
256 | } | |
257 | ||
b9aec69a | 258 | static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype) |
919ba009 VD |
259 | { |
260 | if (mtype > dane->dctx->mdmax) | |
261 | return NULL; | |
262 | return dane->dctx->mdevp[mtype]; | |
263 | } | |
264 | ||
a230b26e EK |
265 | static int dane_tlsa_add(SSL_DANE *dane, |
266 | uint8_t usage, | |
267 | uint8_t selector, | |
268 | uint8_t mtype, unsigned char *data, size_t dlen) | |
919ba009 VD |
269 | { |
270 | danetls_record *t; | |
271 | const EVP_MD *md = NULL; | |
272 | int ilen = (int)dlen; | |
273 | int i; | |
9f6b22b8 | 274 | int num; |
919ba009 VD |
275 | |
276 | if (dane->trecs == NULL) { | |
277 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED); | |
278 | return -1; | |
279 | } | |
280 | ||
281 | if (ilen < 0 || dlen != (size_t)ilen) { | |
282 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH); | |
283 | return 0; | |
284 | } | |
285 | ||
286 | if (usage > DANETLS_USAGE_LAST) { | |
287 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE); | |
288 | return 0; | |
289 | } | |
290 | ||
291 | if (selector > DANETLS_SELECTOR_LAST) { | |
292 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR); | |
293 | return 0; | |
294 | } | |
295 | ||
296 | if (mtype != DANETLS_MATCHING_FULL) { | |
297 | md = tlsa_md_get(dane, mtype); | |
298 | if (md == NULL) { | |
299 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE); | |
300 | return 0; | |
301 | } | |
302 | } | |
303 | ||
304 | if (md != NULL && dlen != (size_t)EVP_MD_size(md)) { | |
305 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH); | |
306 | return 0; | |
307 | } | |
308 | if (!data) { | |
309 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA); | |
310 | return 0; | |
311 | } | |
312 | ||
313 | if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) { | |
314 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
315 | return -1; | |
316 | } | |
317 | ||
318 | t->usage = usage; | |
319 | t->selector = selector; | |
320 | t->mtype = mtype; | |
348240c6 | 321 | t->data = OPENSSL_malloc(dlen); |
919ba009 VD |
322 | if (t->data == NULL) { |
323 | tlsa_free(t); | |
324 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
325 | return -1; | |
326 | } | |
348240c6 MC |
327 | memcpy(t->data, data, dlen); |
328 | t->dlen = dlen; | |
919ba009 VD |
329 | |
330 | /* Validate and cache full certificate or public key */ | |
331 | if (mtype == DANETLS_MATCHING_FULL) { | |
332 | const unsigned char *p = data; | |
333 | X509 *cert = NULL; | |
334 | EVP_PKEY *pkey = NULL; | |
335 | ||
336 | switch (selector) { | |
337 | case DANETLS_SELECTOR_CERT: | |
348240c6 | 338 | if (!d2i_X509(&cert, &p, ilen) || p < data || |
919ba009 VD |
339 | dlen != (size_t)(p - data)) { |
340 | tlsa_free(t); | |
341 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
342 | return 0; | |
343 | } | |
344 | if (X509_get0_pubkey(cert) == NULL) { | |
345 | tlsa_free(t); | |
346 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
347 | return 0; | |
348 | } | |
349 | ||
350 | if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) { | |
351 | X509_free(cert); | |
352 | break; | |
353 | } | |
354 | ||
355 | /* | |
356 | * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA | |
357 | * records that contain full certificates of trust-anchors that are | |
358 | * not present in the wire chain. For usage PKIX-TA(0), we augment | |
359 | * the chain with untrusted Full(0) certificates from DNS, in case | |
360 | * they are missing from the chain. | |
361 | */ | |
362 | if ((dane->certs == NULL && | |
363 | (dane->certs = sk_X509_new_null()) == NULL) || | |
364 | !sk_X509_push(dane->certs, cert)) { | |
365 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
366 | X509_free(cert); | |
367 | tlsa_free(t); | |
368 | return -1; | |
369 | } | |
370 | break; | |
371 | ||
372 | case DANETLS_SELECTOR_SPKI: | |
348240c6 | 373 | if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data || |
919ba009 VD |
374 | dlen != (size_t)(p - data)) { |
375 | tlsa_free(t); | |
376 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY); | |
377 | return 0; | |
378 | } | |
379 | ||
380 | /* | |
381 | * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA | |
382 | * records that contain full bare keys of trust-anchors that are | |
383 | * not present in the wire chain. | |
384 | */ | |
385 | if (usage == DANETLS_USAGE_DANE_TA) | |
386 | t->spki = pkey; | |
387 | else | |
388 | EVP_PKEY_free(pkey); | |
389 | break; | |
390 | } | |
391 | } | |
392 | ||
393 | /*- | |
394 | * Find the right insertion point for the new record. | |
395 | * | |
396 | * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that | |
397 | * they can be processed first, as they require no chain building, and no | |
398 | * expiration or hostname checks. Because DANE-EE(3) is numerically | |
399 | * largest, this is accomplished via descending sort by "usage". | |
400 | * | |
401 | * We also sort in descending order by matching ordinal to simplify | |
402 | * the implementation of digest agility in the verification code. | |
403 | * | |
404 | * The choice of order for the selector is not significant, so we | |
405 | * use the same descending order for consistency. | |
406 | */ | |
9f6b22b8 VD |
407 | num = sk_danetls_record_num(dane->trecs); |
408 | for (i = 0; i < num; ++i) { | |
919ba009 | 409 | danetls_record *rec = sk_danetls_record_value(dane->trecs, i); |
9f6b22b8 | 410 | |
919ba009 VD |
411 | if (rec->usage > usage) |
412 | continue; | |
413 | if (rec->usage < usage) | |
414 | break; | |
415 | if (rec->selector > selector) | |
416 | continue; | |
417 | if (rec->selector < selector) | |
418 | break; | |
419 | if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype]) | |
420 | continue; | |
421 | break; | |
422 | } | |
423 | ||
424 | if (!sk_danetls_record_insert(dane->trecs, t, i)) { | |
425 | tlsa_free(t); | |
426 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
427 | return -1; | |
428 | } | |
429 | dane->umask |= DANETLS_USAGE_BIT(usage); | |
430 | ||
431 | return 1; | |
432 | } | |
433 | ||
d31fb0b5 RS |
434 | static void clear_ciphers(SSL *s) |
435 | { | |
436 | /* clear the current cipher */ | |
437 | ssl_clear_cipher_ctx(s); | |
438 | ssl_clear_hash_ctx(&s->read_hash); | |
439 | ssl_clear_hash_ctx(&s->write_hash); | |
440 | } | |
441 | ||
4f43d0e7 | 442 | int SSL_clear(SSL *s) |
0f113f3e | 443 | { |
0f113f3e MC |
444 | if (s->method == NULL) { |
445 | SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED); | |
446 | return (0); | |
447 | } | |
d02b48c6 | 448 | |
0f113f3e MC |
449 | if (ssl_clear_bad_session(s)) { |
450 | SSL_SESSION_free(s->session); | |
451 | s->session = NULL; | |
452 | } | |
d62bfb39 | 453 | |
0f113f3e MC |
454 | s->error = 0; |
455 | s->hit = 0; | |
456 | s->shutdown = 0; | |
d02b48c6 | 457 | |
0f113f3e MC |
458 | if (s->renegotiate) { |
459 | SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR); | |
460 | return 0; | |
461 | } | |
d02b48c6 | 462 | |
fe3a3291 | 463 | ossl_statem_clear(s); |
413c4f45 | 464 | |
0f113f3e MC |
465 | s->version = s->method->version; |
466 | s->client_version = s->version; | |
467 | s->rwstate = SSL_NOTHING; | |
d02b48c6 | 468 | |
25aaa98a RS |
469 | BUF_MEM_free(s->init_buf); |
470 | s->init_buf = NULL; | |
d31fb0b5 | 471 | clear_ciphers(s); |
0f113f3e | 472 | s->first_packet = 0; |
d02b48c6 | 473 | |
44c04a2e MC |
474 | s->key_update = SSL_KEY_UPDATE_NONE; |
475 | ||
919ba009 VD |
476 | /* Reset DANE verification result state */ |
477 | s->dane.mdpth = -1; | |
478 | s->dane.pdpth = -1; | |
479 | X509_free(s->dane.mcert); | |
480 | s->dane.mcert = NULL; | |
481 | s->dane.mtlsa = NULL; | |
482 | ||
483 | /* Clear the verification result peername */ | |
484 | X509_VERIFY_PARAM_move_peername(s->param, NULL); | |
485 | ||
0f113f3e MC |
486 | /* |
487 | * Check to see if we were changed into a different method, if so, revert | |
488 | * back if we are not doing session-id reuse. | |
489 | */ | |
024f543c | 490 | if (!ossl_statem_get_in_handshake(s) && (s->session == NULL) |
0f113f3e MC |
491 | && (s->method != s->ctx->method)) { |
492 | s->method->ssl_free(s); | |
493 | s->method = s->ctx->method; | |
494 | if (!s->method->ssl_new(s)) | |
495 | return (0); | |
496 | } else | |
0f113f3e | 497 | s->method->ssl_clear(s); |
33d23b87 | 498 | |
af9752e5 | 499 | RECORD_LAYER_clear(&s->rlayer); |
33d23b87 | 500 | |
0f113f3e MC |
501 | return (1); |
502 | } | |
d02b48c6 | 503 | |
4f43d0e7 | 504 | /** Used to change an SSL_CTXs default SSL method type */ |
0f113f3e MC |
505 | int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) |
506 | { | |
507 | STACK_OF(SSL_CIPHER) *sk; | |
508 | ||
509 | ctx->method = meth; | |
510 | ||
511 | sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list), | |
512 | &(ctx->cipher_list_by_id), | |
513 | SSL_DEFAULT_CIPHER_LIST, ctx->cert); | |
514 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { | |
a230b26e | 515 | SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); |
0f113f3e MC |
516 | return (0); |
517 | } | |
518 | return (1); | |
519 | } | |
d02b48c6 | 520 | |
4f43d0e7 | 521 | SSL *SSL_new(SSL_CTX *ctx) |
0f113f3e MC |
522 | { |
523 | SSL *s; | |
524 | ||
525 | if (ctx == NULL) { | |
526 | SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX); | |
527 | return (NULL); | |
528 | } | |
529 | if (ctx->method == NULL) { | |
530 | SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); | |
531 | return (NULL); | |
532 | } | |
533 | ||
b51bce94 | 534 | s = OPENSSL_zalloc(sizeof(*s)); |
0f113f3e MC |
535 | if (s == NULL) |
536 | goto err; | |
0f113f3e | 537 | |
16203f7b AG |
538 | s->lock = CRYPTO_THREAD_lock_new(); |
539 | if (s->lock == NULL) { | |
540 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); | |
541 | OPENSSL_free(s); | |
542 | return NULL; | |
543 | } | |
544 | ||
c036e210 | 545 | RECORD_LAYER_init(&s->rlayer, s); |
28d59af8 | 546 | |
0f113f3e | 547 | s->options = ctx->options; |
5ae4ceb9 | 548 | s->dane.flags = ctx->dane.flags; |
7946ab33 KR |
549 | s->min_proto_version = ctx->min_proto_version; |
550 | s->max_proto_version = ctx->max_proto_version; | |
0f113f3e MC |
551 | s->mode = ctx->mode; |
552 | s->max_cert_list = ctx->max_cert_list; | |
0e04674e | 553 | s->references = 1; |
3fc8d856 | 554 | s->max_early_data = ctx->max_early_data; |
0f113f3e | 555 | |
2c382349 KR |
556 | /* |
557 | * Earlier library versions used to copy the pointer to the CERT, not | |
558 | * its contents; only when setting new parameters for the per-SSL | |
559 | * copy, ssl_cert_new would be called (and the direct reference to | |
560 | * the per-SSL_CTX settings would be lost, but those still were | |
561 | * indirectly accessed for various purposes, and for that reason they | |
562 | * used to be known as s->ctx->default_cert). Now we don't look at the | |
563 | * SSL_CTX's CERT after having duplicated it once. | |
564 | */ | |
565 | s->cert = ssl_cert_dup(ctx->cert); | |
566 | if (s->cert == NULL) | |
567 | goto err; | |
0f113f3e | 568 | |
52e1d7b1 | 569 | RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead); |
0f113f3e MC |
570 | s->msg_callback = ctx->msg_callback; |
571 | s->msg_callback_arg = ctx->msg_callback_arg; | |
572 | s->verify_mode = ctx->verify_mode; | |
573 | s->not_resumable_session_cb = ctx->not_resumable_session_cb; | |
0f113f3e MC |
574 | s->sid_ctx_length = ctx->sid_ctx_length; |
575 | OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); | |
576 | memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); | |
577 | s->verify_callback = ctx->default_verify_callback; | |
578 | s->generate_session_id = ctx->generate_session_id; | |
579 | ||
580 | s->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 581 | if (s->param == NULL) |
0f113f3e MC |
582 | goto err; |
583 | X509_VERIFY_PARAM_inherit(s->param, ctx->param); | |
0f113f3e MC |
584 | s->quiet_shutdown = ctx->quiet_shutdown; |
585 | s->max_send_fragment = ctx->max_send_fragment; | |
d102d9df MC |
586 | s->split_send_fragment = ctx->split_send_fragment; |
587 | s->max_pipelines = ctx->max_pipelines; | |
94777c9c MC |
588 | if (s->max_pipelines > 1) |
589 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
dad78fb1 MC |
590 | if (ctx->default_read_buf_len > 0) |
591 | SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len); | |
bf21446a | 592 | |
16203f7b | 593 | SSL_CTX_up_ref(ctx); |
0f113f3e | 594 | s->ctx = ctx; |
aff8c126 RS |
595 | s->ext.debug_cb = 0; |
596 | s->ext.debug_arg = NULL; | |
597 | s->ext.ticket_expected = 0; | |
598 | s->ext.status_type = ctx->ext.status_type; | |
599 | s->ext.status_expected = 0; | |
600 | s->ext.ocsp.ids = NULL; | |
601 | s->ext.ocsp.exts = NULL; | |
602 | s->ext.ocsp.resp = NULL; | |
603 | s->ext.ocsp.resp_len = 0; | |
16203f7b | 604 | SSL_CTX_up_ref(ctx); |
222da979 | 605 | s->session_ctx = ctx; |
a230b26e | 606 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
607 | if (ctx->ext.ecpointformats) { |
608 | s->ext.ecpointformats = | |
609 | OPENSSL_memdup(ctx->ext.ecpointformats, | |
610 | ctx->ext.ecpointformats_len); | |
611 | if (!s->ext.ecpointformats) | |
0f113f3e | 612 | goto err; |
aff8c126 RS |
613 | s->ext.ecpointformats_len = |
614 | ctx->ext.ecpointformats_len; | |
615 | } | |
616 | if (ctx->ext.supportedgroups) { | |
617 | s->ext.supportedgroups = | |
618 | OPENSSL_memdup(ctx->ext.supportedgroups, | |
619 | ctx->ext.supportedgroups_len); | |
620 | if (!s->ext.supportedgroups) | |
0f113f3e | 621 | goto err; |
aff8c126 | 622 | s->ext.supportedgroups_len = ctx->ext.supportedgroups_len; |
0f113f3e | 623 | } |
a230b26e EK |
624 | #endif |
625 | #ifndef OPENSSL_NO_NEXTPROTONEG | |
aff8c126 | 626 | s->ext.npn = NULL; |
a230b26e | 627 | #endif |
6f017a8f | 628 | |
aff8c126 RS |
629 | if (s->ctx->ext.alpn) { |
630 | s->ext.alpn = OPENSSL_malloc(s->ctx->ext.alpn_len); | |
631 | if (s->ext.alpn == NULL) | |
0f113f3e | 632 | goto err; |
aff8c126 RS |
633 | memcpy(s->ext.alpn, s->ctx->ext.alpn, s->ctx->ext.alpn_len); |
634 | s->ext.alpn_len = s->ctx->ext.alpn_len; | |
0f113f3e | 635 | } |
d02b48c6 | 636 | |
696178ed | 637 | s->verified_chain = NULL; |
0f113f3e | 638 | s->verify_result = X509_V_OK; |
d02b48c6 | 639 | |
a974e64a MC |
640 | s->default_passwd_callback = ctx->default_passwd_callback; |
641 | s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata; | |
642 | ||
0f113f3e | 643 | s->method = ctx->method; |
d02b48c6 | 644 | |
44c04a2e MC |
645 | s->key_update = SSL_KEY_UPDATE_NONE; |
646 | ||
0f113f3e MC |
647 | if (!s->method->ssl_new(s)) |
648 | goto err; | |
d02b48c6 | 649 | |
0f113f3e | 650 | s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1; |
bf21446a | 651 | |
61986d32 | 652 | if (!SSL_clear(s)) |
69f68237 | 653 | goto err; |
58964a49 | 654 | |
25a807bc F |
655 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data)) |
656 | goto err; | |
58964a49 | 657 | |
ddac1974 | 658 | #ifndef OPENSSL_NO_PSK |
0f113f3e MC |
659 | s->psk_client_callback = ctx->psk_client_callback; |
660 | s->psk_server_callback = ctx->psk_server_callback; | |
ddac1974 NL |
661 | #endif |
662 | ||
07bbc92c MC |
663 | s->job = NULL; |
664 | ||
ed29e82a RP |
665 | #ifndef OPENSSL_NO_CT |
666 | if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback, | |
a230b26e | 667 | ctx->ct_validation_callback_arg)) |
ed29e82a RP |
668 | goto err; |
669 | #endif | |
670 | ||
16203f7b | 671 | return s; |
0f113f3e | 672 | err: |
62adbcee | 673 | SSL_free(s); |
0f113f3e | 674 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); |
16203f7b | 675 | return NULL; |
0f113f3e | 676 | } |
d02b48c6 | 677 | |
e417070c RS |
678 | int SSL_is_dtls(const SSL *s) |
679 | { | |
680 | return SSL_IS_DTLS(s) ? 1 : 0; | |
681 | } | |
682 | ||
c5ebfcab | 683 | int SSL_up_ref(SSL *s) |
a18a31e4 | 684 | { |
16203f7b | 685 | int i; |
c5ebfcab | 686 | |
2f545ae4 | 687 | if (CRYPTO_UP_REF(&s->references, &i, s->lock) <= 0) |
c5ebfcab F |
688 | return 0; |
689 | ||
690 | REF_PRINT_COUNT("SSL", s); | |
691 | REF_ASSERT_ISNT(i < 2); | |
692 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
693 | } |
694 | ||
0f113f3e MC |
695 | int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, |
696 | unsigned int sid_ctx_len) | |
697 | { | |
698 | if (sid_ctx_len > sizeof ctx->sid_ctx) { | |
699 | SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT, | |
700 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
701 | return 0; | |
702 | } | |
703 | ctx->sid_ctx_length = sid_ctx_len; | |
704 | memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); | |
4eb77b26 BM |
705 | |
706 | return 1; | |
0f113f3e | 707 | } |
4eb77b26 | 708 | |
0f113f3e MC |
709 | int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, |
710 | unsigned int sid_ctx_len) | |
711 | { | |
712 | if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { | |
713 | SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT, | |
714 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
715 | return 0; | |
716 | } | |
717 | ssl->sid_ctx_length = sid_ctx_len; | |
718 | memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); | |
b4cadc6e BL |
719 | |
720 | return 1; | |
0f113f3e | 721 | } |
b4cadc6e | 722 | |
dc644fe2 | 723 | int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) |
0f113f3e | 724 | { |
16203f7b | 725 | CRYPTO_THREAD_write_lock(ctx->lock); |
0f113f3e | 726 | ctx->generate_session_id = cb; |
16203f7b | 727 | CRYPTO_THREAD_unlock(ctx->lock); |
0f113f3e MC |
728 | return 1; |
729 | } | |
dc644fe2 GT |
730 | |
731 | int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) | |
0f113f3e | 732 | { |
16203f7b | 733 | CRYPTO_THREAD_write_lock(ssl->lock); |
0f113f3e | 734 | ssl->generate_session_id = cb; |
16203f7b | 735 | CRYPTO_THREAD_unlock(ssl->lock); |
0f113f3e MC |
736 | return 1; |
737 | } | |
dc644fe2 | 738 | |
f85c9904 | 739 | int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, |
0f113f3e MC |
740 | unsigned int id_len) |
741 | { | |
742 | /* | |
743 | * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how | |
69687aa8 | 744 | * we can "construct" a session to give us the desired check - i.e. to |
0f113f3e MC |
745 | * find if there's a session in the hash table that would conflict with |
746 | * any new session built out of this id/id_len and the ssl_version in use | |
747 | * by this SSL. | |
748 | */ | |
749 | SSL_SESSION r, *p; | |
750 | ||
751 | if (id_len > sizeof r.session_id) | |
752 | return 0; | |
753 | ||
754 | r.ssl_version = ssl->version; | |
755 | r.session_id_length = id_len; | |
756 | memcpy(r.session_id, id, id_len); | |
757 | ||
e2bb9b9b TS |
758 | CRYPTO_THREAD_read_lock(ssl->session_ctx->lock); |
759 | p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r); | |
760 | CRYPTO_THREAD_unlock(ssl->session_ctx->lock); | |
0f113f3e MC |
761 | return (p != NULL); |
762 | } | |
dc644fe2 | 763 | |
bb7cd4e3 | 764 | int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) |
0f113f3e MC |
765 | { |
766 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
767 | } | |
bb7cd4e3 DSH |
768 | |
769 | int SSL_set_purpose(SSL *s, int purpose) | |
0f113f3e MC |
770 | { |
771 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
772 | } | |
926a56bf | 773 | |
bb7cd4e3 | 774 | int SSL_CTX_set_trust(SSL_CTX *s, int trust) |
0f113f3e MC |
775 | { |
776 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
777 | } | |
bb7cd4e3 DSH |
778 | |
779 | int SSL_set_trust(SSL *s, int trust) | |
0f113f3e MC |
780 | { |
781 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
782 | } | |
bb7cd4e3 | 783 | |
919ba009 VD |
784 | int SSL_set1_host(SSL *s, const char *hostname) |
785 | { | |
786 | return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); | |
787 | } | |
788 | ||
789 | int SSL_add1_host(SSL *s, const char *hostname) | |
790 | { | |
791 | return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0); | |
792 | } | |
793 | ||
794 | void SSL_set_hostflags(SSL *s, unsigned int flags) | |
795 | { | |
796 | X509_VERIFY_PARAM_set_hostflags(s->param, flags); | |
797 | } | |
798 | ||
4588cb44 | 799 | const char *SSL_get0_peername(SSL *s) |
919ba009 VD |
800 | { |
801 | return X509_VERIFY_PARAM_get0_peername(s->param); | |
802 | } | |
803 | ||
804 | int SSL_CTX_dane_enable(SSL_CTX *ctx) | |
805 | { | |
806 | return dane_ctx_enable(&ctx->dane); | |
807 | } | |
808 | ||
5ae4ceb9 VD |
809 | unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags) |
810 | { | |
811 | unsigned long orig = ctx->dane.flags; | |
812 | ||
813 | ctx->dane.flags |= flags; | |
814 | return orig; | |
815 | } | |
816 | ||
817 | unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags) | |
818 | { | |
819 | unsigned long orig = ctx->dane.flags; | |
820 | ||
821 | ctx->dane.flags &= ~flags; | |
822 | return orig; | |
823 | } | |
824 | ||
919ba009 VD |
825 | int SSL_dane_enable(SSL *s, const char *basedomain) |
826 | { | |
b9aec69a | 827 | SSL_DANE *dane = &s->dane; |
919ba009 VD |
828 | |
829 | if (s->ctx->dane.mdmax == 0) { | |
830 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED); | |
831 | return 0; | |
832 | } | |
833 | if (dane->trecs != NULL) { | |
834 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED); | |
835 | return 0; | |
836 | } | |
837 | ||
8d887efa VD |
838 | /* |
839 | * Default SNI name. This rejects empty names, while set1_host below | |
840 | * accepts them and disables host name checks. To avoid side-effects with | |
841 | * invalid input, set the SNI name first. | |
842 | */ | |
aff8c126 | 843 | if (s->ext.hostname == NULL) { |
dccd20d1 | 844 | if (!SSL_set_tlsext_host_name(s, basedomain)) { |
8d887efa | 845 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); |
dccd20d1 | 846 | return -1; |
8d887efa VD |
847 | } |
848 | } | |
849 | ||
919ba009 VD |
850 | /* Primary RFC6125 reference identifier */ |
851 | if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) { | |
852 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); | |
853 | return -1; | |
854 | } | |
855 | ||
919ba009 VD |
856 | dane->mdpth = -1; |
857 | dane->pdpth = -1; | |
858 | dane->dctx = &s->ctx->dane; | |
859 | dane->trecs = sk_danetls_record_new_null(); | |
860 | ||
861 | if (dane->trecs == NULL) { | |
862 | SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE); | |
863 | return -1; | |
864 | } | |
865 | return 1; | |
866 | } | |
867 | ||
5ae4ceb9 VD |
868 | unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags) |
869 | { | |
870 | unsigned long orig = ssl->dane.flags; | |
871 | ||
872 | ssl->dane.flags |= flags; | |
873 | return orig; | |
874 | } | |
875 | ||
876 | unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags) | |
877 | { | |
878 | unsigned long orig = ssl->dane.flags; | |
879 | ||
880 | ssl->dane.flags &= ~flags; | |
881 | return orig; | |
882 | } | |
883 | ||
919ba009 VD |
884 | int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki) |
885 | { | |
b9aec69a | 886 | SSL_DANE *dane = &s->dane; |
919ba009 | 887 | |
c0a445a9 | 888 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
889 | return -1; |
890 | if (dane->mtlsa) { | |
891 | if (mcert) | |
892 | *mcert = dane->mcert; | |
893 | if (mspki) | |
894 | *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL; | |
895 | } | |
896 | return dane->mdpth; | |
897 | } | |
898 | ||
899 | int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector, | |
900 | uint8_t *mtype, unsigned const char **data, size_t *dlen) | |
901 | { | |
b9aec69a | 902 | SSL_DANE *dane = &s->dane; |
919ba009 | 903 | |
c0a445a9 | 904 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
905 | return -1; |
906 | if (dane->mtlsa) { | |
907 | if (usage) | |
908 | *usage = dane->mtlsa->usage; | |
909 | if (selector) | |
910 | *selector = dane->mtlsa->selector; | |
911 | if (mtype) | |
912 | *mtype = dane->mtlsa->mtype; | |
913 | if (data) | |
914 | *data = dane->mtlsa->data; | |
915 | if (dlen) | |
916 | *dlen = dane->mtlsa->dlen; | |
917 | } | |
918 | return dane->mdpth; | |
919 | } | |
920 | ||
b9aec69a | 921 | SSL_DANE *SSL_get0_dane(SSL *s) |
919ba009 VD |
922 | { |
923 | return &s->dane; | |
924 | } | |
925 | ||
926 | int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector, | |
927 | uint8_t mtype, unsigned char *data, size_t dlen) | |
928 | { | |
929 | return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen); | |
930 | } | |
931 | ||
a230b26e EK |
932 | int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype, |
933 | uint8_t ord) | |
919ba009 VD |
934 | { |
935 | return dane_mtype_set(&ctx->dane, md, mtype, ord); | |
936 | } | |
937 | ||
ccf11751 | 938 | int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) |
0f113f3e MC |
939 | { |
940 | return X509_VERIFY_PARAM_set1(ctx->param, vpm); | |
941 | } | |
ccf11751 DSH |
942 | |
943 | int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) | |
0f113f3e MC |
944 | { |
945 | return X509_VERIFY_PARAM_set1(ssl->param, vpm); | |
946 | } | |
ccf11751 | 947 | |
7af31968 | 948 | X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx) |
0f113f3e MC |
949 | { |
950 | return ctx->param; | |
951 | } | |
7af31968 DSH |
952 | |
953 | X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl) | |
0f113f3e MC |
954 | { |
955 | return ssl->param; | |
956 | } | |
7af31968 | 957 | |
a5ee80b9 | 958 | void SSL_certs_clear(SSL *s) |
0f113f3e MC |
959 | { |
960 | ssl_cert_clear_certs(s->cert); | |
961 | } | |
a5ee80b9 | 962 | |
4f43d0e7 | 963 | void SSL_free(SSL *s) |
0f113f3e MC |
964 | { |
965 | int i; | |
58964a49 | 966 | |
0f113f3e MC |
967 | if (s == NULL) |
968 | return; | |
e03ddfae | 969 | |
2f545ae4 | 970 | CRYPTO_DOWN_REF(&s->references, &i, s->lock); |
f3f1cf84 | 971 | REF_PRINT_COUNT("SSL", s); |
0f113f3e MC |
972 | if (i > 0) |
973 | return; | |
f3f1cf84 | 974 | REF_ASSERT_ISNT(i < 0); |
d02b48c6 | 975 | |
222561fe | 976 | X509_VERIFY_PARAM_free(s->param); |
919ba009 | 977 | dane_final(&s->dane); |
0f113f3e MC |
978 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); |
979 | ||
2e7dc7cd MC |
980 | ssl_free_wbio_buffer(s); |
981 | ||
65e2d672 | 982 | BIO_free_all(s->wbio); |
325cfa85 | 983 | BIO_free_all(s->rbio); |
0f113f3e | 984 | |
25aaa98a | 985 | BUF_MEM_free(s->init_buf); |
0f113f3e MC |
986 | |
987 | /* add extra stuff */ | |
25aaa98a RS |
988 | sk_SSL_CIPHER_free(s->cipher_list); |
989 | sk_SSL_CIPHER_free(s->cipher_list_by_id); | |
0f113f3e MC |
990 | |
991 | /* Make the next call work :-) */ | |
992 | if (s->session != NULL) { | |
993 | ssl_clear_bad_session(s); | |
994 | SSL_SESSION_free(s->session); | |
995 | } | |
996 | ||
d31fb0b5 | 997 | clear_ciphers(s); |
d02b48c6 | 998 | |
e0e920b1 | 999 | ssl_cert_free(s->cert); |
0f113f3e | 1000 | /* Free up if allocated */ |
d02b48c6 | 1001 | |
aff8c126 | 1002 | OPENSSL_free(s->ext.hostname); |
222da979 | 1003 | SSL_CTX_free(s->session_ctx); |
e481f9b9 | 1004 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
1005 | OPENSSL_free(s->ext.ecpointformats); |
1006 | OPENSSL_free(s->ext.supportedgroups); | |
a230b26e | 1007 | #endif /* OPENSSL_NO_EC */ |
aff8c126 | 1008 | sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free); |
3e41ac35 | 1009 | #ifndef OPENSSL_NO_OCSP |
aff8c126 | 1010 | sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free); |
3e41ac35 | 1011 | #endif |
ed29e82a RP |
1012 | #ifndef OPENSSL_NO_CT |
1013 | SCT_LIST_free(s->scts); | |
aff8c126 | 1014 | OPENSSL_free(s->ext.scts); |
ed29e82a | 1015 | #endif |
aff8c126 RS |
1016 | OPENSSL_free(s->ext.ocsp.resp); |
1017 | OPENSSL_free(s->ext.alpn); | |
cfef5027 | 1018 | OPENSSL_free(s->ext.tls13_cookie); |
6b1bb98f | 1019 | OPENSSL_free(s->clienthello); |
0f113f3e | 1020 | |
222561fe | 1021 | sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free); |
0f113f3e | 1022 | |
696178ed DSH |
1023 | sk_X509_pop_free(s->verified_chain, X509_free); |
1024 | ||
0f113f3e MC |
1025 | if (s->method != NULL) |
1026 | s->method->ssl_free(s); | |
1027 | ||
f161995e | 1028 | RECORD_LAYER_release(&s->rlayer); |
33d23b87 | 1029 | |
e0e920b1 | 1030 | SSL_CTX_free(s->ctx); |
7c3908dd | 1031 | |
ff75a257 MC |
1032 | ASYNC_WAIT_CTX_free(s->waitctx); |
1033 | ||
e481f9b9 | 1034 | #if !defined(OPENSSL_NO_NEXTPROTONEG) |
aff8c126 | 1035 | OPENSSL_free(s->ext.npn); |
ee2ffc27 BL |
1036 | #endif |
1037 | ||
e783bae2 | 1038 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 1039 | sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); |
0f113f3e MC |
1040 | #endif |
1041 | ||
16203f7b AG |
1042 | CRYPTO_THREAD_lock_free(s->lock); |
1043 | ||
0f113f3e MC |
1044 | OPENSSL_free(s); |
1045 | } | |
1046 | ||
65e2d672 | 1047 | void SSL_set0_rbio(SSL *s, BIO *rbio) |
3ffbe008 | 1048 | { |
65e2d672 | 1049 | BIO_free_all(s->rbio); |
3ffbe008 MC |
1050 | s->rbio = rbio; |
1051 | } | |
1052 | ||
65e2d672 | 1053 | void SSL_set0_wbio(SSL *s, BIO *wbio) |
0f113f3e MC |
1054 | { |
1055 | /* | |
1056 | * If the output buffering BIO is still in place, remove it | |
1057 | */ | |
2e7dc7cd MC |
1058 | if (s->bbio != NULL) |
1059 | s->wbio = BIO_pop(s->wbio); | |
1060 | ||
65e2d672 | 1061 | BIO_free_all(s->wbio); |
0f113f3e | 1062 | s->wbio = wbio; |
2e7dc7cd MC |
1063 | |
1064 | /* Re-attach |bbio| to the new |wbio|. */ | |
1065 | if (s->bbio != NULL) | |
1066 | s->wbio = BIO_push(s->bbio, s->wbio); | |
0f113f3e | 1067 | } |
d02b48c6 | 1068 | |
3ffbe008 MC |
1069 | void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) |
1070 | { | |
65e2d672 MC |
1071 | /* |
1072 | * For historical reasons, this function has many different cases in | |
1073 | * ownership handling. | |
1074 | */ | |
1075 | ||
1076 | /* If nothing has changed, do nothing */ | |
1077 | if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s)) | |
1078 | return; | |
1079 | ||
1080 | /* | |
1081 | * If the two arguments are equal then one fewer reference is granted by the | |
1082 | * caller than we want to take | |
1083 | */ | |
1084 | if (rbio != NULL && rbio == wbio) | |
1085 | BIO_up_ref(rbio); | |
1086 | ||
1087 | /* | |
1088 | * If only the wbio is changed only adopt one reference. | |
1089 | */ | |
1090 | if (rbio == SSL_get_rbio(s)) { | |
1091 | SSL_set0_wbio(s, wbio); | |
1092 | return; | |
1093 | } | |
1094 | /* | |
1095 | * There is an asymmetry here for historical reasons. If only the rbio is | |
1096 | * changed AND the rbio and wbio were originally different, then we only | |
1097 | * adopt one reference. | |
1098 | */ | |
1099 | if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) { | |
1100 | SSL_set0_rbio(s, rbio); | |
1101 | return; | |
1102 | } | |
1103 | ||
1104 | /* Otherwise, adopt both references. */ | |
1105 | SSL_set0_rbio(s, rbio); | |
1106 | SSL_set0_wbio(s, wbio); | |
3ffbe008 MC |
1107 | } |
1108 | ||
0821bcd4 | 1109 | BIO *SSL_get_rbio(const SSL *s) |
0f113f3e | 1110 | { |
2e7dc7cd | 1111 | return s->rbio; |
0f113f3e | 1112 | } |
d02b48c6 | 1113 | |
0821bcd4 | 1114 | BIO *SSL_get_wbio(const SSL *s) |
0f113f3e | 1115 | { |
2e7dc7cd MC |
1116 | if (s->bbio != NULL) { |
1117 | /* | |
1118 | * If |bbio| is active, the true caller-configured BIO is its | |
1119 | * |next_bio|. | |
1120 | */ | |
1121 | return BIO_next(s->bbio); | |
1122 | } | |
1123 | return s->wbio; | |
0f113f3e | 1124 | } |
d02b48c6 | 1125 | |
0821bcd4 | 1126 | int SSL_get_fd(const SSL *s) |
0f113f3e | 1127 | { |
2e7dc7cd | 1128 | return SSL_get_rfd(s); |
0f113f3e | 1129 | } |
24cbf3ef | 1130 | |
0821bcd4 | 1131 | int SSL_get_rfd(const SSL *s) |
0f113f3e MC |
1132 | { |
1133 | int ret = -1; | |
1134 | BIO *b, *r; | |
1135 | ||
1136 | b = SSL_get_rbio(s); | |
1137 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1138 | if (r != NULL) | |
1139 | BIO_get_fd(r, &ret); | |
1140 | return (ret); | |
1141 | } | |
d02b48c6 | 1142 | |
0821bcd4 | 1143 | int SSL_get_wfd(const SSL *s) |
0f113f3e MC |
1144 | { |
1145 | int ret = -1; | |
1146 | BIO *b, *r; | |
1147 | ||
1148 | b = SSL_get_wbio(s); | |
1149 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1150 | if (r != NULL) | |
1151 | BIO_get_fd(r, &ret); | |
1152 | return (ret); | |
1153 | } | |
24cbf3ef | 1154 | |
bc36ee62 | 1155 | #ifndef OPENSSL_NO_SOCK |
0f113f3e MC |
1156 | int SSL_set_fd(SSL *s, int fd) |
1157 | { | |
1158 | int ret = 0; | |
1159 | BIO *bio = NULL; | |
1160 | ||
1161 | bio = BIO_new(BIO_s_socket()); | |
1162 | ||
1163 | if (bio == NULL) { | |
1164 | SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB); | |
1165 | goto err; | |
1166 | } | |
1167 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
1168 | SSL_set_bio(s, bio, bio); | |
1169 | ret = 1; | |
1170 | err: | |
1171 | return (ret); | |
1172 | } | |
d02b48c6 | 1173 | |
0f113f3e MC |
1174 | int SSL_set_wfd(SSL *s, int fd) |
1175 | { | |
2e7dc7cd | 1176 | BIO *rbio = SSL_get_rbio(s); |
0f113f3e | 1177 | |
2e7dc7cd MC |
1178 | if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET |
1179 | || (int)BIO_get_fd(rbio, NULL) != fd) { | |
1180 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1181 | |
1182 | if (bio == NULL) { | |
1183 | SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1184 | return 0; |
0f113f3e MC |
1185 | } |
1186 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
65e2d672 | 1187 | SSL_set0_wbio(s, bio); |
2e7dc7cd | 1188 | } else { |
65e2d672 MC |
1189 | BIO_up_ref(rbio); |
1190 | SSL_set0_wbio(s, rbio); | |
2e7dc7cd MC |
1191 | } |
1192 | return 1; | |
0f113f3e MC |
1193 | } |
1194 | ||
1195 | int SSL_set_rfd(SSL *s, int fd) | |
1196 | { | |
2e7dc7cd | 1197 | BIO *wbio = SSL_get_wbio(s); |
0f113f3e | 1198 | |
2e7dc7cd MC |
1199 | if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET |
1200 | || ((int)BIO_get_fd(wbio, NULL) != fd)) { | |
1201 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1202 | |
1203 | if (bio == NULL) { | |
1204 | SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1205 | return 0; |
0f113f3e MC |
1206 | } |
1207 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
65e2d672 | 1208 | SSL_set0_rbio(s, bio); |
2e7dc7cd | 1209 | } else { |
65e2d672 MC |
1210 | BIO_up_ref(wbio); |
1211 | SSL_set0_rbio(s, wbio); | |
2e7dc7cd MC |
1212 | } |
1213 | ||
1214 | return 1; | |
0f113f3e MC |
1215 | } |
1216 | #endif | |
ca03109c BM |
1217 | |
1218 | /* return length of latest Finished message we sent, copy to 'buf' */ | |
0821bcd4 | 1219 | size_t SSL_get_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1220 | { |
1221 | size_t ret = 0; | |
1222 | ||
1223 | if (s->s3 != NULL) { | |
1224 | ret = s->s3->tmp.finish_md_len; | |
1225 | if (count > ret) | |
1226 | count = ret; | |
1227 | memcpy(buf, s->s3->tmp.finish_md, count); | |
1228 | } | |
1229 | return ret; | |
1230 | } | |
ca03109c BM |
1231 | |
1232 | /* return length of latest Finished message we expected, copy to 'buf' */ | |
0821bcd4 | 1233 | size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1234 | { |
1235 | size_t ret = 0; | |
ca03109c | 1236 | |
0f113f3e MC |
1237 | if (s->s3 != NULL) { |
1238 | ret = s->s3->tmp.peer_finish_md_len; | |
1239 | if (count > ret) | |
1240 | count = ret; | |
1241 | memcpy(buf, s->s3->tmp.peer_finish_md, count); | |
1242 | } | |
1243 | return ret; | |
1244 | } | |
ca03109c | 1245 | |
0821bcd4 | 1246 | int SSL_get_verify_mode(const SSL *s) |
0f113f3e MC |
1247 | { |
1248 | return (s->verify_mode); | |
1249 | } | |
d02b48c6 | 1250 | |
0821bcd4 | 1251 | int SSL_get_verify_depth(const SSL *s) |
0f113f3e MC |
1252 | { |
1253 | return X509_VERIFY_PARAM_get_depth(s->param); | |
1254 | } | |
7f89714e | 1255 | |
0f113f3e MC |
1256 | int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) { |
1257 | return (s->verify_callback); | |
1258 | } | |
d02b48c6 | 1259 | |
0821bcd4 | 1260 | int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) |
0f113f3e MC |
1261 | { |
1262 | return (ctx->verify_mode); | |
1263 | } | |
d02b48c6 | 1264 | |
0821bcd4 | 1265 | int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) |
0f113f3e MC |
1266 | { |
1267 | return X509_VERIFY_PARAM_get_depth(ctx->param); | |
1268 | } | |
1269 | ||
1270 | int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) { | |
1271 | return (ctx->default_verify_callback); | |
1272 | } | |
1273 | ||
1274 | void SSL_set_verify(SSL *s, int mode, | |
1275 | int (*callback) (int ok, X509_STORE_CTX *ctx)) | |
1276 | { | |
1277 | s->verify_mode = mode; | |
1278 | if (callback != NULL) | |
1279 | s->verify_callback = callback; | |
1280 | } | |
1281 | ||
1282 | void SSL_set_verify_depth(SSL *s, int depth) | |
1283 | { | |
1284 | X509_VERIFY_PARAM_set_depth(s->param, depth); | |
1285 | } | |
1286 | ||
1287 | void SSL_set_read_ahead(SSL *s, int yes) | |
1288 | { | |
52e1d7b1 | 1289 | RECORD_LAYER_set_read_ahead(&s->rlayer, yes); |
0f113f3e | 1290 | } |
d02b48c6 | 1291 | |
0821bcd4 | 1292 | int SSL_get_read_ahead(const SSL *s) |
0f113f3e | 1293 | { |
52e1d7b1 | 1294 | return RECORD_LAYER_get_read_ahead(&s->rlayer); |
0f113f3e | 1295 | } |
d02b48c6 | 1296 | |
0821bcd4 | 1297 | int SSL_pending(const SSL *s) |
0f113f3e | 1298 | { |
8b0e934a MC |
1299 | size_t pending = s->method->ssl_pending(s); |
1300 | ||
0f113f3e MC |
1301 | /* |
1302 | * SSL_pending cannot work properly if read-ahead is enabled | |
1303 | * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is | |
1304 | * impossible to fix since SSL_pending cannot report errors that may be | |
1305 | * observed while scanning the new data. (Note that SSL_pending() is | |
1306 | * often used as a boolean value, so we'd better not return -1.) | |
8b0e934a MC |
1307 | * |
1308 | * SSL_pending also cannot work properly if the value >INT_MAX. In that case | |
1309 | * we just return INT_MAX. | |
0f113f3e | 1310 | */ |
348240c6 | 1311 | return pending < INT_MAX ? (int)pending : INT_MAX; |
0f113f3e | 1312 | } |
d02b48c6 | 1313 | |
49580f25 MC |
1314 | int SSL_has_pending(const SSL *s) |
1315 | { | |
1316 | /* | |
1317 | * Similar to SSL_pending() but returns a 1 to indicate that we have | |
1318 | * unprocessed data available or 0 otherwise (as opposed to the number of | |
1319 | * bytes available). Unlike SSL_pending() this will take into account | |
1320 | * read_ahead data. A 1 return simply indicates that we have unprocessed | |
1321 | * data. That data may not result in any application data, or we may fail | |
1322 | * to parse the records for some reason. | |
1323 | */ | |
b8c49611 | 1324 | if (RECORD_LAYER_processed_read_pending(&s->rlayer)) |
49580f25 MC |
1325 | return 1; |
1326 | ||
1327 | return RECORD_LAYER_read_pending(&s->rlayer); | |
1328 | } | |
1329 | ||
0821bcd4 | 1330 | X509 *SSL_get_peer_certificate(const SSL *s) |
0f113f3e MC |
1331 | { |
1332 | X509 *r; | |
d02b48c6 | 1333 | |
0f113f3e MC |
1334 | if ((s == NULL) || (s->session == NULL)) |
1335 | r = NULL; | |
1336 | else | |
1337 | r = s->session->peer; | |
d02b48c6 | 1338 | |
0f113f3e MC |
1339 | if (r == NULL) |
1340 | return (r); | |
d02b48c6 | 1341 | |
05f0fb9f | 1342 | X509_up_ref(r); |
0f113f3e MC |
1343 | |
1344 | return (r); | |
1345 | } | |
d02b48c6 | 1346 | |
0821bcd4 | 1347 | STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) |
0f113f3e MC |
1348 | { |
1349 | STACK_OF(X509) *r; | |
1350 | ||
c34b0f99 | 1351 | if ((s == NULL) || (s->session == NULL)) |
0f113f3e MC |
1352 | r = NULL; |
1353 | else | |
c34b0f99 | 1354 | r = s->session->peer_chain; |
0f113f3e MC |
1355 | |
1356 | /* | |
1357 | * If we are a client, cert_chain includes the peer's own certificate; if | |
1358 | * we are a server, it does not. | |
1359 | */ | |
1360 | ||
1361 | return (r); | |
1362 | } | |
1363 | ||
1364 | /* | |
1365 | * Now in theory, since the calling process own 't' it should be safe to | |
1366 | * modify. We need to be able to read f without being hassled | |
1367 | */ | |
17dd65e6 | 1368 | int SSL_copy_session_id(SSL *t, const SSL *f) |
0f113f3e | 1369 | { |
16203f7b | 1370 | int i; |
0f113f3e | 1371 | /* Do we need to to SSL locking? */ |
61986d32 | 1372 | if (!SSL_set_session(t, SSL_get_session(f))) { |
17dd65e6 | 1373 | return 0; |
69f68237 | 1374 | } |
0f113f3e MC |
1375 | |
1376 | /* | |
87d9cafa | 1377 | * what if we are setup for one protocol version but want to talk another |
0f113f3e MC |
1378 | */ |
1379 | if (t->method != f->method) { | |
919ba009 VD |
1380 | t->method->ssl_free(t); |
1381 | t->method = f->method; | |
1382 | if (t->method->ssl_new(t) == 0) | |
1383 | return 0; | |
0f113f3e MC |
1384 | } |
1385 | ||
2f545ae4 | 1386 | CRYPTO_UP_REF(&f->cert->references, &i, f->cert->lock); |
24a0d393 KR |
1387 | ssl_cert_free(t->cert); |
1388 | t->cert = f->cert; | |
348240c6 | 1389 | if (!SSL_set_session_id_context(t, f->sid_ctx, (int)f->sid_ctx_length)) { |
17dd65e6 | 1390 | return 0; |
69f68237 | 1391 | } |
17dd65e6 MC |
1392 | |
1393 | return 1; | |
0f113f3e | 1394 | } |
d02b48c6 | 1395 | |
58964a49 | 1396 | /* Fix this so it checks all the valid key/cert options */ |
0821bcd4 | 1397 | int SSL_CTX_check_private_key(const SSL_CTX *ctx) |
0f113f3e | 1398 | { |
a230b26e EK |
1399 | if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) { |
1400 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
0f113f3e MC |
1401 | return (0); |
1402 | } | |
1403 | if (ctx->cert->key->privatekey == NULL) { | |
a230b26e | 1404 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); |
0f113f3e MC |
1405 | return (0); |
1406 | } | |
1407 | return (X509_check_private_key | |
1408 | (ctx->cert->key->x509, ctx->cert->key->privatekey)); | |
1409 | } | |
d02b48c6 | 1410 | |
58964a49 | 1411 | /* Fix this function so that it takes an optional type parameter */ |
0821bcd4 | 1412 | int SSL_check_private_key(const SSL *ssl) |
0f113f3e MC |
1413 | { |
1414 | if (ssl == NULL) { | |
1415 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER); | |
1416 | return (0); | |
1417 | } | |
0f113f3e MC |
1418 | if (ssl->cert->key->x509 == NULL) { |
1419 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
1420 | return (0); | |
1421 | } | |
1422 | if (ssl->cert->key->privatekey == NULL) { | |
1423 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); | |
1424 | return (0); | |
1425 | } | |
1426 | return (X509_check_private_key(ssl->cert->key->x509, | |
1427 | ssl->cert->key->privatekey)); | |
1428 | } | |
d02b48c6 | 1429 | |
07bbc92c MC |
1430 | int SSL_waiting_for_async(SSL *s) |
1431 | { | |
e8aa8b6c | 1432 | if (s->job) |
82676094 MC |
1433 | return 1; |
1434 | ||
07bbc92c MC |
1435 | return 0; |
1436 | } | |
1437 | ||
ff75a257 | 1438 | int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds) |
f4da39d2 | 1439 | { |
ff75a257 MC |
1440 | ASYNC_WAIT_CTX *ctx = s->waitctx; |
1441 | ||
1442 | if (ctx == NULL) | |
1443 | return 0; | |
1444 | return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds); | |
1445 | } | |
f4da39d2 | 1446 | |
ff75a257 MC |
1447 | int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds, |
1448 | OSSL_ASYNC_FD *delfd, size_t *numdelfds) | |
1449 | { | |
1450 | ASYNC_WAIT_CTX *ctx = s->waitctx; | |
1451 | ||
1452 | if (ctx == NULL) | |
1453 | return 0; | |
1454 | return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd, | |
1455 | numdelfds); | |
f4da39d2 MC |
1456 | } |
1457 | ||
4f43d0e7 | 1458 | int SSL_accept(SSL *s) |
0f113f3e | 1459 | { |
c4c32155 | 1460 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1461 | /* Not properly initialized yet */ |
1462 | SSL_set_accept_state(s); | |
07bbc92c | 1463 | } |
add2f5ca MC |
1464 | |
1465 | return SSL_do_handshake(s); | |
0f113f3e | 1466 | } |
d02b48c6 | 1467 | |
4f43d0e7 | 1468 | int SSL_connect(SSL *s) |
0f113f3e | 1469 | { |
c4c32155 | 1470 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1471 | /* Not properly initialized yet */ |
1472 | SSL_set_connect_state(s); | |
add2f5ca | 1473 | } |
b31b04d9 | 1474 | |
add2f5ca | 1475 | return SSL_do_handshake(s); |
0f113f3e | 1476 | } |
d02b48c6 | 1477 | |
0821bcd4 | 1478 | long SSL_get_default_timeout(const SSL *s) |
0f113f3e MC |
1479 | { |
1480 | return (s->method->get_timeout()); | |
1481 | } | |
1482 | ||
7fecbf6f | 1483 | static int ssl_start_async_job(SSL *s, struct ssl_async_args *args, |
a230b26e EK |
1484 | int (*func) (void *)) |
1485 | { | |
add2f5ca | 1486 | int ret; |
ff75a257 MC |
1487 | if (s->waitctx == NULL) { |
1488 | s->waitctx = ASYNC_WAIT_CTX_new(); | |
1489 | if (s->waitctx == NULL) | |
1490 | return -1; | |
1491 | } | |
e8aa8b6c | 1492 | switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args, |
a230b26e | 1493 | sizeof(struct ssl_async_args))) { |
add2f5ca MC |
1494 | case ASYNC_ERR: |
1495 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1496 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC); |
add2f5ca MC |
1497 | return -1; |
1498 | case ASYNC_PAUSE: | |
1499 | s->rwstate = SSL_ASYNC_PAUSED; | |
1500 | return -1; | |
fc7f190c MC |
1501 | case ASYNC_NO_JOBS: |
1502 | s->rwstate = SSL_ASYNC_NO_JOBS; | |
1503 | return -1; | |
add2f5ca MC |
1504 | case ASYNC_FINISH: |
1505 | s->job = NULL; | |
1506 | return ret; | |
1507 | default: | |
1508 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1509 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR); |
add2f5ca MC |
1510 | /* Shouldn't happen */ |
1511 | return -1; | |
1512 | } | |
1513 | } | |
07bbc92c | 1514 | |
add2f5ca | 1515 | static int ssl_io_intern(void *vargs) |
07bbc92c MC |
1516 | { |
1517 | struct ssl_async_args *args; | |
1518 | SSL *s; | |
1519 | void *buf; | |
348240c6 | 1520 | size_t num; |
07bbc92c MC |
1521 | |
1522 | args = (struct ssl_async_args *)vargs; | |
1523 | s = args->s; | |
1524 | buf = args->buf; | |
1525 | num = args->num; | |
ec447924 MC |
1526 | switch (args->type) { |
1527 | case READFUNC: | |
7ee8627f | 1528 | return args->f.func_read(s, buf, num, &s->asyncrw); |
ec447924 | 1529 | case WRITEFUNC: |
7ee8627f | 1530 | return args->f.func_write(s, buf, num, &s->asyncrw); |
ec447924 MC |
1531 | case OTHERFUNC: |
1532 | return args->f.func_other(s); | |
1533 | } | |
1534 | return -1; | |
07bbc92c MC |
1535 | } |
1536 | ||
4ee7d3f9 | 1537 | int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes) |
0f113f3e | 1538 | { |
c4c32155 | 1539 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1540 | SSLerr(SSL_F_SSL_READ_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1541 | return -1; |
1542 | } | |
1543 | ||
1544 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
1545 | s->rwstate = SSL_NOTHING; | |
4ee7d3f9 | 1546 | return 0; |
0f113f3e | 1547 | } |
07bbc92c | 1548 | |
564547e4 MC |
1549 | if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY |
1550 | || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) { | |
0a5ece5b MC |
1551 | SSLerr(SSL_F_SSL_READ_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1552 | return 0; | |
1553 | } | |
564547e4 MC |
1554 | /* |
1555 | * If we are a client and haven't received the ServerHello etc then we | |
1556 | * better do that | |
1557 | */ | |
1558 | ossl_statem_check_finish_init(s, 0); | |
0a5ece5b | 1559 | |
e8aa8b6c | 1560 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1561 | struct ssl_async_args args; |
eda75751 | 1562 | int ret; |
add2f5ca MC |
1563 | |
1564 | args.s = s; | |
1565 | args.buf = buf; | |
1566 | args.num = num; | |
ec447924 MC |
1567 | args.type = READFUNC; |
1568 | args.f.func_read = s->method->ssl_read; | |
add2f5ca | 1569 | |
eda75751 | 1570 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
54105ddd | 1571 | *readbytes = s->asyncrw; |
eda75751 | 1572 | return ret; |
07bbc92c | 1573 | } else { |
54105ddd | 1574 | return s->method->ssl_read(s, buf, num, readbytes); |
07bbc92c | 1575 | } |
0f113f3e MC |
1576 | } |
1577 | ||
4ee7d3f9 | 1578 | int SSL_read(SSL *s, void *buf, int num) |
eda75751 MC |
1579 | { |
1580 | int ret; | |
54105ddd | 1581 | size_t readbytes; |
eda75751 MC |
1582 | |
1583 | if (num < 0) { | |
4ee7d3f9 | 1584 | SSLerr(SSL_F_SSL_READ, SSL_R_BAD_LENGTH); |
eda75751 MC |
1585 | return -1; |
1586 | } | |
1587 | ||
4ee7d3f9 | 1588 | ret = ssl_read_internal(s, buf, (size_t)num, &readbytes); |
eda75751 MC |
1589 | |
1590 | /* | |
1591 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1592 | * <= INT_MAX | |
1593 | */ | |
1594 | if (ret > 0) | |
54105ddd | 1595 | ret = (int)readbytes; |
eda75751 MC |
1596 | |
1597 | return ret; | |
1598 | } | |
1599 | ||
4ee7d3f9 KR |
1600 | int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes) |
1601 | { | |
1602 | int ret = ssl_read_internal(s, buf, num, readbytes); | |
1603 | ||
1604 | if (ret < 0) | |
1605 | ret = 0; | |
1606 | return ret; | |
1607 | } | |
1608 | ||
f533fbd4 | 1609 | int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes) |
d781d247 MC |
1610 | { |
1611 | int ret; | |
1612 | ||
1613 | if (!s->server) { | |
f533fbd4 MC |
1614 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1615 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1616 | } |
1617 | ||
d781d247 MC |
1618 | switch (s->early_data_state) { |
1619 | case SSL_EARLY_DATA_NONE: | |
1620 | if (!SSL_in_before(s)) { | |
f533fbd4 MC |
1621 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, |
1622 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
1623 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1624 | } |
1625 | /* fall through */ | |
1626 | ||
1627 | case SSL_EARLY_DATA_ACCEPT_RETRY: | |
1628 | s->early_data_state = SSL_EARLY_DATA_ACCEPTING; | |
1629 | ret = SSL_accept(s); | |
1630 | if (ret <= 0) { | |
1631 | /* NBIO or error */ | |
1632 | s->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY; | |
f533fbd4 | 1633 | return SSL_READ_EARLY_DATA_ERROR; |
d781d247 MC |
1634 | } |
1635 | /* fall through */ | |
1636 | ||
1637 | case SSL_EARLY_DATA_READ_RETRY: | |
1638 | if (s->ext.early_data == SSL_EARLY_DATA_ACCEPTED) { | |
1639 | s->early_data_state = SSL_EARLY_DATA_READING; | |
1640 | ret = SSL_read_ex(s, buf, num, readbytes); | |
1641 | /* | |
ef6c191b MC |
1642 | * State machine will update early_data_state to |
1643 | * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData | |
1644 | * message | |
d781d247 MC |
1645 | */ |
1646 | if (ret > 0 || (ret <= 0 && s->early_data_state | |
1647 | != SSL_EARLY_DATA_FINISHED_READING)) { | |
1648 | s->early_data_state = SSL_EARLY_DATA_READ_RETRY; | |
f533fbd4 MC |
1649 | return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS |
1650 | : SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1651 | } |
1652 | } else { | |
1653 | s->early_data_state = SSL_EARLY_DATA_FINISHED_READING; | |
1654 | } | |
1655 | *readbytes = 0; | |
f533fbd4 | 1656 | return SSL_READ_EARLY_DATA_FINISH; |
d781d247 MC |
1657 | |
1658 | default: | |
f533fbd4 MC |
1659 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1660 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1661 | } |
1662 | } | |
1663 | ||
f5b519c4 | 1664 | int SSL_get_early_data_status(const SSL *s) |
1ea4d09a MC |
1665 | { |
1666 | return s->ext.early_data; | |
1667 | } | |
1668 | ||
4ee7d3f9 | 1669 | static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes) |
0f113f3e | 1670 | { |
c4c32155 | 1671 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1672 | SSLerr(SSL_F_SSL_PEEK_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1673 | return -1; |
1674 | } | |
1675 | ||
1676 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
4ee7d3f9 | 1677 | return 0; |
0f113f3e | 1678 | } |
e8aa8b6c | 1679 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1680 | struct ssl_async_args args; |
eda75751 | 1681 | int ret; |
0f113f3e | 1682 | |
add2f5ca MC |
1683 | args.s = s; |
1684 | args.buf = buf; | |
1685 | args.num = num; | |
ec447924 MC |
1686 | args.type = READFUNC; |
1687 | args.f.func_read = s->method->ssl_peek; | |
07bbc92c | 1688 | |
eda75751 | 1689 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
54105ddd | 1690 | *readbytes = s->asyncrw; |
eda75751 | 1691 | return ret; |
add2f5ca | 1692 | } else { |
54105ddd | 1693 | return s->method->ssl_peek(s, buf, num, readbytes); |
add2f5ca | 1694 | } |
07bbc92c MC |
1695 | } |
1696 | ||
4ee7d3f9 | 1697 | int SSL_peek(SSL *s, void *buf, int num) |
7ee8627f MC |
1698 | { |
1699 | int ret; | |
4ee7d3f9 | 1700 | size_t readbytes; |
7ee8627f MC |
1701 | |
1702 | if (num < 0) { | |
4ee7d3f9 | 1703 | SSLerr(SSL_F_SSL_PEEK, SSL_R_BAD_LENGTH); |
7ee8627f MC |
1704 | return -1; |
1705 | } | |
1706 | ||
4ee7d3f9 | 1707 | ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes); |
7ee8627f MC |
1708 | |
1709 | /* | |
1710 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1711 | * <= INT_MAX | |
1712 | */ | |
1713 | if (ret > 0) | |
4ee7d3f9 | 1714 | ret = (int)readbytes; |
7ee8627f MC |
1715 | |
1716 | return ret; | |
1717 | } | |
1718 | ||
4ee7d3f9 KR |
1719 | |
1720 | int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes) | |
1721 | { | |
1722 | int ret = ssl_peek_internal(s, buf, num, readbytes); | |
1723 | ||
1724 | if (ret < 0) | |
1725 | ret = 0; | |
1726 | return ret; | |
1727 | } | |
1728 | ||
1729 | int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written) | |
0f113f3e | 1730 | { |
c4c32155 | 1731 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1732 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1733 | return -1; |
1734 | } | |
1735 | ||
1736 | if (s->shutdown & SSL_SENT_SHUTDOWN) { | |
1737 | s->rwstate = SSL_NOTHING; | |
4ee7d3f9 KR |
1738 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_PROTOCOL_IS_SHUTDOWN); |
1739 | return -1; | |
0f113f3e | 1740 | } |
07bbc92c | 1741 | |
ef6c191b | 1742 | if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY |
09f28874 MC |
1743 | || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY |
1744 | || s->early_data_state == SSL_EARLY_DATA_READ_RETRY) { | |
0a5ece5b | 1745 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
49e7fe12 | 1746 | return 0; |
0a5ece5b | 1747 | } |
564547e4 MC |
1748 | /* If we are a client and haven't sent the Finished we better do that */ |
1749 | ossl_statem_check_finish_init(s, 1); | |
49e7fe12 | 1750 | |
e8aa8b6c | 1751 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
7ee8627f | 1752 | int ret; |
add2f5ca MC |
1753 | struct ssl_async_args args; |
1754 | ||
1755 | args.s = s; | |
1756 | args.buf = (void *)buf; | |
1757 | args.num = num; | |
ec447924 MC |
1758 | args.type = WRITEFUNC; |
1759 | args.f.func_write = s->method->ssl_write; | |
add2f5ca | 1760 | |
7ee8627f MC |
1761 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
1762 | *written = s->asyncrw; | |
1763 | return ret; | |
07bbc92c | 1764 | } else { |
7ee8627f | 1765 | return s->method->ssl_write(s, buf, num, written); |
07bbc92c | 1766 | } |
0f113f3e | 1767 | } |
d02b48c6 | 1768 | |
4ee7d3f9 KR |
1769 | int SSL_write(SSL *s, const void *buf, int num) |
1770 | { | |
1771 | int ret; | |
1772 | size_t written; | |
1773 | ||
1774 | if (num < 0) { | |
1775 | SSLerr(SSL_F_SSL_WRITE, SSL_R_BAD_LENGTH); | |
1776 | return -1; | |
1777 | } | |
1778 | ||
1779 | ret = ssl_write_internal(s, buf, (size_t)num, &written); | |
1780 | ||
1781 | /* | |
1782 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1783 | * <= INT_MAX | |
1784 | */ | |
1785 | if (ret > 0) | |
1786 | ret = (int)written; | |
1787 | ||
1788 | return ret; | |
1789 | } | |
1790 | ||
1791 | int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written) | |
1792 | { | |
1793 | int ret = ssl_write_internal(s, buf, num, written); | |
1794 | ||
1795 | if (ret < 0) | |
1796 | ret = 0; | |
1797 | return ret; | |
1798 | } | |
1799 | ||
0665b4ed | 1800 | int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written) |
49e7fe12 MC |
1801 | { |
1802 | int ret; | |
1803 | ||
49e7fe12 MC |
1804 | switch (s->early_data_state) { |
1805 | case SSL_EARLY_DATA_NONE: | |
09f28874 MC |
1806 | if (s->server |
1807 | || !SSL_in_before(s) | |
0a5ece5b MC |
1808 | || s->session == NULL |
1809 | || s->session->ext.max_early_data == 0) { | |
09f28874 MC |
1810 | SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, |
1811 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
49e7fe12 MC |
1812 | return 0; |
1813 | } | |
1814 | /* fall through */ | |
1815 | ||
1816 | case SSL_EARLY_DATA_CONNECT_RETRY: | |
1817 | s->early_data_state = SSL_EARLY_DATA_CONNECTING; | |
1818 | ret = SSL_connect(s); | |
1819 | if (ret <= 0) { | |
1820 | /* NBIO or error */ | |
1821 | s->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY; | |
1822 | return 0; | |
1823 | } | |
1824 | /* fall through */ | |
1825 | ||
1826 | case SSL_EARLY_DATA_WRITE_RETRY: | |
1827 | s->early_data_state = SSL_EARLY_DATA_WRITING; | |
1828 | ret = SSL_write_ex(s, buf, num, written); | |
1829 | s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY; | |
1830 | return ret; | |
1831 | ||
116d0da5 | 1832 | case SSL_EARLY_DATA_FINISHED_READING: |
09f28874 MC |
1833 | case SSL_EARLY_DATA_READ_RETRY: |
1834 | /* We are a server writing to an unauthenticated client */ | |
1835 | s->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING; | |
1836 | ret = SSL_write_ex(s, buf, num, written); | |
1837 | s->early_data_state = SSL_EARLY_DATA_READ_RETRY; | |
1838 | return ret; | |
1839 | ||
49e7fe12 | 1840 | default: |
09f28874 | 1841 | SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
49e7fe12 MC |
1842 | return 0; |
1843 | } | |
1844 | } | |
1845 | ||
4f43d0e7 | 1846 | int SSL_shutdown(SSL *s) |
0f113f3e MC |
1847 | { |
1848 | /* | |
1849 | * Note that this function behaves differently from what one might | |
1850 | * expect. Return values are 0 for no success (yet), 1 for success; but | |
1851 | * calling it once is usually not enough, even if blocking I/O is used | |
1852 | * (see ssl3_shutdown). | |
1853 | */ | |
1854 | ||
c4c32155 | 1855 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1856 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); |
1857 | return -1; | |
1858 | } | |
1859 | ||
64f9f406 | 1860 | if (!SSL_in_init(s)) { |
e8aa8b6c | 1861 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
64f9f406 | 1862 | struct ssl_async_args args; |
ec447924 | 1863 | |
64f9f406 MC |
1864 | args.s = s; |
1865 | args.type = OTHERFUNC; | |
1866 | args.f.func_other = s->method->ssl_shutdown; | |
ec447924 | 1867 | |
64f9f406 MC |
1868 | return ssl_start_async_job(s, &args, ssl_io_intern); |
1869 | } else { | |
1870 | return s->method->ssl_shutdown(s); | |
1871 | } | |
ec447924 | 1872 | } else { |
64f9f406 MC |
1873 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT); |
1874 | return -1; | |
ec447924 | 1875 | } |
0f113f3e | 1876 | } |
d02b48c6 | 1877 | |
4fbfe86a | 1878 | int SSL_key_update(SSL *s, int updatetype) |
44c04a2e | 1879 | { |
f14afcaa | 1880 | /* |
a9998e2f | 1881 | * TODO(TLS1.3): How will applications know whether TLSv1.3 has been |
f14afcaa MC |
1882 | * negotiated, and that it is appropriate to call SSL_key_update() instead |
1883 | * of SSL_renegotiate(). | |
1884 | */ | |
44c04a2e MC |
1885 | if (!SSL_IS_TLS13(s)) { |
1886 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_WRONG_SSL_VERSION); | |
1887 | return 0; | |
1888 | } | |
1889 | ||
1890 | if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED | |
1891 | && updatetype != SSL_KEY_UPDATE_REQUESTED) { | |
1892 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_INVALID_KEY_UPDATE_TYPE); | |
1893 | return 0; | |
1894 | } | |
1895 | ||
1896 | if (!SSL_is_init_finished(s)) { | |
1897 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_STILL_IN_INIT); | |
1898 | return 0; | |
1899 | } | |
1900 | ||
1901 | ossl_statem_set_in_init(s, 1); | |
44c04a2e | 1902 | s->key_update = updatetype; |
44c04a2e MC |
1903 | return 1; |
1904 | } | |
1905 | ||
4fbfe86a | 1906 | int SSL_get_key_update_type(SSL *s) |
53d1d07d MC |
1907 | { |
1908 | return s->key_update; | |
1909 | } | |
1910 | ||
4f43d0e7 | 1911 | int SSL_renegotiate(SSL *s) |
0f113f3e | 1912 | { |
44c04a2e MC |
1913 | if (SSL_IS_TLS13(s)) { |
1914 | SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_WRONG_SSL_VERSION); | |
2c0980d2 | 1915 | return 0; |
44c04a2e | 1916 | } |
cda6b998 | 1917 | |
0f113f3e MC |
1918 | if (s->renegotiate == 0) |
1919 | s->renegotiate = 1; | |
44959ee4 | 1920 | |
0f113f3e | 1921 | s->new_session = 1; |
44959ee4 | 1922 | |
0f113f3e MC |
1923 | return (s->method->ssl_renegotiate(s)); |
1924 | } | |
d02b48c6 | 1925 | |
44959ee4 | 1926 | int SSL_renegotiate_abbreviated(SSL *s) |
0f113f3e | 1927 | { |
cda6b998 | 1928 | if (SSL_IS_TLS13(s)) |
2c0980d2 | 1929 | return 0; |
cda6b998 | 1930 | |
0f113f3e MC |
1931 | if (s->renegotiate == 0) |
1932 | s->renegotiate = 1; | |
c519e89f | 1933 | |
0f113f3e | 1934 | s->new_session = 0; |
c519e89f | 1935 | |
0f113f3e MC |
1936 | return (s->method->ssl_renegotiate(s)); |
1937 | } | |
44959ee4 | 1938 | |
6b0e9fac | 1939 | int SSL_renegotiate_pending(SSL *s) |
0f113f3e MC |
1940 | { |
1941 | /* | |
1942 | * becomes true when negotiation is requested; false again once a | |
1943 | * handshake has finished | |
1944 | */ | |
1945 | return (s->renegotiate != 0); | |
1946 | } | |
1947 | ||
1948 | long SSL_ctrl(SSL *s, int cmd, long larg, void *parg) | |
1949 | { | |
1950 | long l; | |
1951 | ||
1952 | switch (cmd) { | |
1953 | case SSL_CTRL_GET_READ_AHEAD: | |
52e1d7b1 | 1954 | return (RECORD_LAYER_get_read_ahead(&s->rlayer)); |
0f113f3e | 1955 | case SSL_CTRL_SET_READ_AHEAD: |
52e1d7b1 MC |
1956 | l = RECORD_LAYER_get_read_ahead(&s->rlayer); |
1957 | RECORD_LAYER_set_read_ahead(&s->rlayer, larg); | |
0f113f3e MC |
1958 | return (l); |
1959 | ||
1960 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
1961 | s->msg_callback_arg = parg; | |
1962 | return 1; | |
1963 | ||
0f113f3e MC |
1964 | case SSL_CTRL_MODE: |
1965 | return (s->mode |= larg); | |
1966 | case SSL_CTRL_CLEAR_MODE: | |
1967 | return (s->mode &= ~larg); | |
1968 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
348240c6 | 1969 | return (long)(s->max_cert_list); |
0f113f3e | 1970 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
1971 | if (larg < 0) |
1972 | return 0; | |
1973 | l = (long)s->max_cert_list; | |
1974 | s->max_cert_list = (size_t)larg; | |
1975 | return l; | |
0f113f3e MC |
1976 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: |
1977 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
1978 | return 0; | |
1979 | s->max_send_fragment = larg; | |
d102d9df MC |
1980 | if (s->max_send_fragment < s->split_send_fragment) |
1981 | s->split_send_fragment = s->max_send_fragment; | |
1982 | return 1; | |
1983 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: | |
7ee8627f | 1984 | if ((size_t)larg > s->max_send_fragment || larg == 0) |
d102d9df MC |
1985 | return 0; |
1986 | s->split_send_fragment = larg; | |
0f113f3e | 1987 | return 1; |
d102d9df MC |
1988 | case SSL_CTRL_SET_MAX_PIPELINES: |
1989 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
1990 | return 0; | |
1991 | s->max_pipelines = larg; | |
94777c9c MC |
1992 | if (larg > 1) |
1993 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
07077415 | 1994 | return 1; |
0f113f3e MC |
1995 | case SSL_CTRL_GET_RI_SUPPORT: |
1996 | if (s->s3) | |
1997 | return s->s3->send_connection_binding; | |
1998 | else | |
1999 | return 0; | |
2000 | case SSL_CTRL_CERT_FLAGS: | |
2001 | return (s->cert->cert_flags |= larg); | |
2002 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
2003 | return (s->cert->cert_flags &= ~larg); | |
2004 | ||
2005 | case SSL_CTRL_GET_RAW_CIPHERLIST: | |
2006 | if (parg) { | |
76106e60 | 2007 | if (s->s3->tmp.ciphers_raw == NULL) |
0f113f3e | 2008 | return 0; |
76106e60 DSH |
2009 | *(unsigned char **)parg = s->s3->tmp.ciphers_raw; |
2010 | return (int)s->s3->tmp.ciphers_rawlen; | |
e9fa092e EK |
2011 | } else { |
2012 | return TLS_CIPHER_LEN; | |
2013 | } | |
c5364614 | 2014 | case SSL_CTRL_GET_EXTMS_SUPPORT: |
024f543c | 2015 | if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s)) |
a230b26e | 2016 | return -1; |
dccd20d1 | 2017 | if (s->session->flags & SSL_SESS_FLAG_EXTMS) |
c5364614 DSH |
2018 | return 1; |
2019 | else | |
2020 | return 0; | |
7946ab33 | 2021 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
4fa52141 VD |
2022 | return ssl_set_version_bound(s->ctx->method->version, (int)larg, |
2023 | &s->min_proto_version); | |
7946ab33 | 2024 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
4fa52141 VD |
2025 | return ssl_set_version_bound(s->ctx->method->version, (int)larg, |
2026 | &s->max_proto_version); | |
0f113f3e MC |
2027 | default: |
2028 | return (s->method->ssl_ctrl(s, cmd, larg, parg)); | |
2029 | } | |
2030 | } | |
2031 | ||
2032 | long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
2033 | { | |
2034 | switch (cmd) { | |
2035 | case SSL_CTRL_SET_MSG_CALLBACK: | |
2036 | s->msg_callback = (void (*) | |
2037 | (int write_p, int version, int content_type, | |
2038 | const void *buf, size_t len, SSL *ssl, | |
2039 | void *arg))(fp); | |
2040 | return 1; | |
2041 | ||
2042 | default: | |
2043 | return (s->method->ssl_callback_ctrl(s, cmd, fp)); | |
2044 | } | |
2045 | } | |
d3442bc7 | 2046 | |
3c1d6bbc | 2047 | LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx) |
0f113f3e MC |
2048 | { |
2049 | return ctx->sessions; | |
2050 | } | |
2051 | ||
2052 | long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
2053 | { | |
2054 | long l; | |
2055 | /* For some cases with ctx == NULL perform syntax checks */ | |
2056 | if (ctx == NULL) { | |
2057 | switch (cmd) { | |
14536c8c | 2058 | #ifndef OPENSSL_NO_EC |
de4d764e MC |
2059 | case SSL_CTRL_SET_GROUPS_LIST: |
2060 | return tls1_set_groups_list(NULL, NULL, parg); | |
0f113f3e MC |
2061 | #endif |
2062 | case SSL_CTRL_SET_SIGALGS_LIST: | |
2063 | case SSL_CTRL_SET_CLIENT_SIGALGS_LIST: | |
2064 | return tls1_set_sigalgs_list(NULL, parg, 0); | |
2065 | default: | |
2066 | return 0; | |
2067 | } | |
2068 | } | |
2069 | ||
2070 | switch (cmd) { | |
2071 | case SSL_CTRL_GET_READ_AHEAD: | |
2072 | return (ctx->read_ahead); | |
2073 | case SSL_CTRL_SET_READ_AHEAD: | |
2074 | l = ctx->read_ahead; | |
2075 | ctx->read_ahead = larg; | |
2076 | return (l); | |
2077 | ||
2078 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
2079 | ctx->msg_callback_arg = parg; | |
2080 | return 1; | |
2081 | ||
2082 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
348240c6 | 2083 | return (long)(ctx->max_cert_list); |
0f113f3e | 2084 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
2085 | if (larg < 0) |
2086 | return 0; | |
2087 | l = (long)ctx->max_cert_list; | |
2088 | ctx->max_cert_list = (size_t)larg; | |
2089 | return l; | |
0f113f3e MC |
2090 | |
2091 | case SSL_CTRL_SET_SESS_CACHE_SIZE: | |
348240c6 MC |
2092 | if (larg < 0) |
2093 | return 0; | |
2094 | l = (long)ctx->session_cache_size; | |
2095 | ctx->session_cache_size = (size_t)larg; | |
2096 | return l; | |
0f113f3e | 2097 | case SSL_CTRL_GET_SESS_CACHE_SIZE: |
348240c6 | 2098 | return (long)(ctx->session_cache_size); |
0f113f3e MC |
2099 | case SSL_CTRL_SET_SESS_CACHE_MODE: |
2100 | l = ctx->session_cache_mode; | |
2101 | ctx->session_cache_mode = larg; | |
2102 | return (l); | |
2103 | case SSL_CTRL_GET_SESS_CACHE_MODE: | |
2104 | return (ctx->session_cache_mode); | |
2105 | ||
2106 | case SSL_CTRL_SESS_NUMBER: | |
2107 | return (lh_SSL_SESSION_num_items(ctx->sessions)); | |
2108 | case SSL_CTRL_SESS_CONNECT: | |
2109 | return (ctx->stats.sess_connect); | |
2110 | case SSL_CTRL_SESS_CONNECT_GOOD: | |
2111 | return (ctx->stats.sess_connect_good); | |
2112 | case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: | |
2113 | return (ctx->stats.sess_connect_renegotiate); | |
2114 | case SSL_CTRL_SESS_ACCEPT: | |
2115 | return (ctx->stats.sess_accept); | |
2116 | case SSL_CTRL_SESS_ACCEPT_GOOD: | |
2117 | return (ctx->stats.sess_accept_good); | |
2118 | case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: | |
2119 | return (ctx->stats.sess_accept_renegotiate); | |
2120 | case SSL_CTRL_SESS_HIT: | |
2121 | return (ctx->stats.sess_hit); | |
2122 | case SSL_CTRL_SESS_CB_HIT: | |
2123 | return (ctx->stats.sess_cb_hit); | |
2124 | case SSL_CTRL_SESS_MISSES: | |
2125 | return (ctx->stats.sess_miss); | |
2126 | case SSL_CTRL_SESS_TIMEOUTS: | |
2127 | return (ctx->stats.sess_timeout); | |
2128 | case SSL_CTRL_SESS_CACHE_FULL: | |
2129 | return (ctx->stats.sess_cache_full); | |
0f113f3e MC |
2130 | case SSL_CTRL_MODE: |
2131 | return (ctx->mode |= larg); | |
2132 | case SSL_CTRL_CLEAR_MODE: | |
2133 | return (ctx->mode &= ~larg); | |
2134 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
2135 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
2136 | return 0; | |
2137 | ctx->max_send_fragment = larg; | |
d102d9df | 2138 | if (ctx->max_send_fragment < ctx->split_send_fragment) |
bfb155c1 | 2139 | ctx->split_send_fragment = ctx->max_send_fragment; |
0f113f3e | 2140 | return 1; |
d102d9df | 2141 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: |
7ee8627f | 2142 | if ((size_t)larg > ctx->max_send_fragment || larg == 0) |
d102d9df MC |
2143 | return 0; |
2144 | ctx->split_send_fragment = larg; | |
2145 | return 1; | |
2146 | case SSL_CTRL_SET_MAX_PIPELINES: | |
2147 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
2148 | return 0; | |
2149 | ctx->max_pipelines = larg; | |
07077415 | 2150 | return 1; |
0f113f3e MC |
2151 | case SSL_CTRL_CERT_FLAGS: |
2152 | return (ctx->cert->cert_flags |= larg); | |
2153 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
2154 | return (ctx->cert->cert_flags &= ~larg); | |
7946ab33 | 2155 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
4fa52141 VD |
2156 | return ssl_set_version_bound(ctx->method->version, (int)larg, |
2157 | &ctx->min_proto_version); | |
7946ab33 | 2158 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
4fa52141 VD |
2159 | return ssl_set_version_bound(ctx->method->version, (int)larg, |
2160 | &ctx->max_proto_version); | |
0f113f3e MC |
2161 | default: |
2162 | return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg)); | |
2163 | } | |
2164 | } | |
2165 | ||
2166 | long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
2167 | { | |
2168 | switch (cmd) { | |
2169 | case SSL_CTRL_SET_MSG_CALLBACK: | |
2170 | ctx->msg_callback = (void (*) | |
2171 | (int write_p, int version, int content_type, | |
2172 | const void *buf, size_t len, SSL *ssl, | |
2173 | void *arg))(fp); | |
2174 | return 1; | |
2175 | ||
2176 | default: | |
2177 | return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp)); | |
2178 | } | |
2179 | } | |
d3442bc7 | 2180 | |
ccd86b68 | 2181 | int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) |
0f113f3e | 2182 | { |
90d9e49a DSH |
2183 | if (a->id > b->id) |
2184 | return 1; | |
2185 | if (a->id < b->id) | |
2186 | return -1; | |
2187 | return 0; | |
0f113f3e MC |
2188 | } |
2189 | ||
2190 | int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, | |
2191 | const SSL_CIPHER *const *bp) | |
2192 | { | |
90d9e49a DSH |
2193 | if ((*ap)->id > (*bp)->id) |
2194 | return 1; | |
2195 | if ((*ap)->id < (*bp)->id) | |
2196 | return -1; | |
2197 | return 0; | |
0f113f3e | 2198 | } |
d02b48c6 | 2199 | |
4f43d0e7 | 2200 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2201 | * preference */ |
0821bcd4 | 2202 | STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) |
0f113f3e MC |
2203 | { |
2204 | if (s != NULL) { | |
2205 | if (s->cipher_list != NULL) { | |
2206 | return (s->cipher_list); | |
2207 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { | |
2208 | return (s->ctx->cipher_list); | |
2209 | } | |
2210 | } | |
2211 | return (NULL); | |
2212 | } | |
2213 | ||
831eef2c NM |
2214 | STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s) |
2215 | { | |
2216 | if ((s == NULL) || (s->session == NULL) || !s->server) | |
2217 | return NULL; | |
2218 | return s->session->ciphers; | |
2219 | } | |
2220 | ||
8b8e5bed | 2221 | STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s) |
0f113f3e MC |
2222 | { |
2223 | STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers; | |
2224 | int i; | |
2225 | ciphers = SSL_get_ciphers(s); | |
2226 | if (!ciphers) | |
2227 | return NULL; | |
2228 | ssl_set_client_disabled(s); | |
2229 | for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { | |
2230 | const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i); | |
2231 | if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) { | |
2232 | if (!sk) | |
2233 | sk = sk_SSL_CIPHER_new_null(); | |
2234 | if (!sk) | |
2235 | return NULL; | |
2236 | if (!sk_SSL_CIPHER_push(sk, c)) { | |
2237 | sk_SSL_CIPHER_free(sk); | |
2238 | return NULL; | |
2239 | } | |
2240 | } | |
2241 | } | |
2242 | return sk; | |
2243 | } | |
8b8e5bed | 2244 | |
4f43d0e7 | 2245 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2246 | * algorithm id */ |
f73e07cf | 2247 | STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) |
0f113f3e MC |
2248 | { |
2249 | if (s != NULL) { | |
2250 | if (s->cipher_list_by_id != NULL) { | |
2251 | return (s->cipher_list_by_id); | |
2252 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) { | |
2253 | return (s->ctx->cipher_list_by_id); | |
2254 | } | |
2255 | } | |
2256 | return (NULL); | |
2257 | } | |
d02b48c6 | 2258 | |
4f43d0e7 | 2259 | /** The old interface to get the same thing as SSL_get_ciphers() */ |
0f113f3e MC |
2260 | const char *SSL_get_cipher_list(const SSL *s, int n) |
2261 | { | |
4a640fb6 | 2262 | const SSL_CIPHER *c; |
0f113f3e MC |
2263 | STACK_OF(SSL_CIPHER) *sk; |
2264 | ||
2265 | if (s == NULL) | |
2266 | return (NULL); | |
2267 | sk = SSL_get_ciphers(s); | |
2268 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) | |
2269 | return (NULL); | |
2270 | c = sk_SSL_CIPHER_value(sk, n); | |
2271 | if (c == NULL) | |
2272 | return (NULL); | |
2273 | return (c->name); | |
2274 | } | |
d02b48c6 | 2275 | |
9d5ac953 KY |
2276 | /** return a STACK of the ciphers available for the SSL_CTX and in order of |
2277 | * preference */ | |
2278 | STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx) | |
2279 | { | |
2280 | if (ctx != NULL) | |
2281 | return ctx->cipher_list; | |
2282 | return NULL; | |
2283 | } | |
2284 | ||
25f923dd | 2285 | /** specify the ciphers to be used by default by the SSL_CTX */ |
018e57c7 | 2286 | int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) |
0f113f3e MC |
2287 | { |
2288 | STACK_OF(SSL_CIPHER) *sk; | |
2289 | ||
2290 | sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, | |
2291 | &ctx->cipher_list_by_id, str, ctx->cert); | |
2292 | /* | |
2293 | * ssl_create_cipher_list may return an empty stack if it was unable to | |
2294 | * find a cipher matching the given rule string (for example if the rule | |
2295 | * string specifies a cipher which has been disabled). This is not an | |
2296 | * error as far as ssl_create_cipher_list is concerned, and hence | |
2297 | * ctx->cipher_list and ctx->cipher_list_by_id has been updated. | |
2298 | */ | |
2299 | if (sk == NULL) | |
2300 | return 0; | |
2301 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2302 | SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2303 | return 0; | |
2304 | } | |
2305 | return 1; | |
2306 | } | |
d02b48c6 | 2307 | |
4f43d0e7 | 2308 | /** specify the ciphers to be used by the SSL */ |
0f113f3e MC |
2309 | int SSL_set_cipher_list(SSL *s, const char *str) |
2310 | { | |
2311 | STACK_OF(SSL_CIPHER) *sk; | |
2312 | ||
2313 | sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, | |
2314 | &s->cipher_list_by_id, str, s->cert); | |
2315 | /* see comment in SSL_CTX_set_cipher_list */ | |
2316 | if (sk == NULL) | |
2317 | return 0; | |
2318 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2319 | SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2320 | return 0; | |
2321 | } | |
2322 | return 1; | |
2323 | } | |
d02b48c6 | 2324 | |
0f113f3e MC |
2325 | char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len) |
2326 | { | |
2327 | char *p; | |
2328 | STACK_OF(SSL_CIPHER) *sk; | |
4a640fb6 | 2329 | const SSL_CIPHER *c; |
0f113f3e MC |
2330 | int i; |
2331 | ||
2332 | if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2)) | |
2333 | return (NULL); | |
2334 | ||
2335 | p = buf; | |
2336 | sk = s->session->ciphers; | |
2337 | ||
2338 | if (sk_SSL_CIPHER_num(sk) == 0) | |
2339 | return NULL; | |
2340 | ||
2341 | for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { | |
2342 | int n; | |
2343 | ||
2344 | c = sk_SSL_CIPHER_value(sk, i); | |
2345 | n = strlen(c->name); | |
2346 | if (n + 1 > len) { | |
2347 | if (p != buf) | |
2348 | --p; | |
2349 | *p = '\0'; | |
2350 | return buf; | |
2351 | } | |
a89c9a0d | 2352 | memcpy(p, c->name, n + 1); |
0f113f3e MC |
2353 | p += n; |
2354 | *(p++) = ':'; | |
2355 | len -= n + 1; | |
2356 | } | |
2357 | p[-1] = '\0'; | |
2358 | return (buf); | |
2359 | } | |
2360 | ||
52b8dad8 | 2361 | /** return a servername extension value if provided in Client Hello, or NULL. |
f1fd4544 | 2362 | * So far, only host_name types are defined (RFC 3546). |
ed3883d2 BM |
2363 | */ |
2364 | ||
f1fd4544 | 2365 | const char *SSL_get_servername(const SSL *s, const int type) |
0f113f3e MC |
2366 | { |
2367 | if (type != TLSEXT_NAMETYPE_host_name) | |
2368 | return NULL; | |
a13c20f6 | 2369 | |
aff8c126 RS |
2370 | return s->session && !s->ext.hostname ? |
2371 | s->session->ext.hostname : s->ext.hostname; | |
0f113f3e | 2372 | } |
ed3883d2 | 2373 | |
f1fd4544 | 2374 | int SSL_get_servername_type(const SSL *s) |
0f113f3e MC |
2375 | { |
2376 | if (s->session | |
aff8c126 RS |
2377 | && (!s->ext.hostname ? s->session-> |
2378 | ext.hostname : s->ext.hostname)) | |
0f113f3e MC |
2379 | return TLSEXT_NAMETYPE_host_name; |
2380 | return -1; | |
2381 | } | |
ee2ffc27 | 2382 | |
0f113f3e MC |
2383 | /* |
2384 | * SSL_select_next_proto implements the standard protocol selection. It is | |
ee2ffc27 | 2385 | * expected that this function is called from the callback set by |
0f113f3e MC |
2386 | * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a |
2387 | * vector of 8-bit, length prefixed byte strings. The length byte itself is | |
2388 | * not included in the length. A byte string of length 0 is invalid. No byte | |
2389 | * string may be truncated. The current, but experimental algorithm for | |
2390 | * selecting the protocol is: 1) If the server doesn't support NPN then this | |
2391 | * is indicated to the callback. In this case, the client application has to | |
2392 | * abort the connection or have a default application level protocol. 2) If | |
2393 | * the server supports NPN, but advertises an empty list then the client | |
f430ba31 | 2394 | * selects the first protocol in its list, but indicates via the API that this |
0f113f3e MC |
2395 | * fallback case was enacted. 3) Otherwise, the client finds the first |
2396 | * protocol in the server's list that it supports and selects this protocol. | |
2397 | * This is because it's assumed that the server has better information about | |
2398 | * which protocol a client should use. 4) If the client doesn't support any | |
2399 | * of the server's advertised protocols, then this is treated the same as | |
2400 | * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was | |
2401 | * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. | |
ee2ffc27 | 2402 | */ |
0f113f3e MC |
2403 | int SSL_select_next_proto(unsigned char **out, unsigned char *outlen, |
2404 | const unsigned char *server, | |
2405 | unsigned int server_len, | |
a230b26e | 2406 | const unsigned char *client, unsigned int client_len) |
0f113f3e MC |
2407 | { |
2408 | unsigned int i, j; | |
2409 | const unsigned char *result; | |
2410 | int status = OPENSSL_NPN_UNSUPPORTED; | |
2411 | ||
2412 | /* | |
2413 | * For each protocol in server preference order, see if we support it. | |
2414 | */ | |
2415 | for (i = 0; i < server_len;) { | |
2416 | for (j = 0; j < client_len;) { | |
2417 | if (server[i] == client[j] && | |
2418 | memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) { | |
2419 | /* We found a match */ | |
2420 | result = &server[i]; | |
2421 | status = OPENSSL_NPN_NEGOTIATED; | |
2422 | goto found; | |
2423 | } | |
2424 | j += client[j]; | |
2425 | j++; | |
2426 | } | |
2427 | i += server[i]; | |
2428 | i++; | |
2429 | } | |
2430 | ||
2431 | /* There's no overlap between our protocols and the server's list. */ | |
2432 | result = client; | |
2433 | status = OPENSSL_NPN_NO_OVERLAP; | |
2434 | ||
2435 | found: | |
2436 | *out = (unsigned char *)result + 1; | |
2437 | *outlen = result[0]; | |
2438 | return status; | |
2439 | } | |
ee2ffc27 | 2440 | |
e481f9b9 | 2441 | #ifndef OPENSSL_NO_NEXTPROTONEG |
0f113f3e MC |
2442 | /* |
2443 | * SSL_get0_next_proto_negotiated sets *data and *len to point to the | |
2444 | * client's requested protocol for this connection and returns 0. If the | |
2445 | * client didn't request any protocol, then *data is set to NULL. Note that | |
2446 | * the client can request any protocol it chooses. The value returned from | |
2447 | * this function need not be a member of the list of supported protocols | |
ee2ffc27 BL |
2448 | * provided by the callback. |
2449 | */ | |
0f113f3e MC |
2450 | void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, |
2451 | unsigned *len) | |
2452 | { | |
aff8c126 | 2453 | *data = s->ext.npn; |
0f113f3e MC |
2454 | if (!*data) { |
2455 | *len = 0; | |
2456 | } else { | |
aff8c126 | 2457 | *len = (unsigned int)s->ext.npn_len; |
0f113f3e MC |
2458 | } |
2459 | } | |
2460 | ||
2461 | /* | |
aff8c126 | 2462 | * SSL_CTX_set_npn_advertised_cb sets a callback that is called when |
0f113f3e MC |
2463 | * a TLS server needs a list of supported protocols for Next Protocol |
2464 | * Negotiation. The returned list must be in wire format. The list is | |
2465 | * returned by setting |out| to point to it and |outlen| to its length. This | |
2466 | * memory will not be modified, but one should assume that the SSL* keeps a | |
2467 | * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it | |
2468 | * wishes to advertise. Otherwise, no such extension will be included in the | |
2469 | * ServerHello. | |
2470 | */ | |
aff8c126 | 2471 | void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx, |
8cbfcc70 | 2472 | SSL_CTX_npn_advertised_cb_func cb, |
aff8c126 | 2473 | void *arg) |
0f113f3e | 2474 | { |
aff8c126 RS |
2475 | ctx->ext.npn_advertised_cb = cb; |
2476 | ctx->ext.npn_advertised_cb_arg = arg; | |
0f113f3e MC |
2477 | } |
2478 | ||
2479 | /* | |
2480 | * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a | |
ee2ffc27 BL |
2481 | * client needs to select a protocol from the server's provided list. |out| |
2482 | * must be set to point to the selected protocol (which may be within |in|). | |
0f113f3e MC |
2483 | * The length of the protocol name must be written into |outlen|. The |
2484 | * server's advertised protocols are provided in |in| and |inlen|. The | |
2485 | * callback can assume that |in| is syntactically valid. The client must | |
2486 | * select a protocol. It is fatal to the connection if this callback returns | |
2487 | * a value other than SSL_TLSEXT_ERR_OK. | |
ee2ffc27 | 2488 | */ |
aff8c126 | 2489 | void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx, |
8cbfcc70 | 2490 | SSL_CTX_npn_select_cb_func cb, |
aff8c126 | 2491 | void *arg) |
0f113f3e | 2492 | { |
aff8c126 RS |
2493 | ctx->ext.npn_select_cb = cb; |
2494 | ctx->ext.npn_select_cb_arg = arg; | |
0f113f3e | 2495 | } |
e481f9b9 | 2496 | #endif |
a398f821 | 2497 | |
0f113f3e MC |
2498 | /* |
2499 | * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|. | |
6f017a8f | 2500 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2501 | * length-prefixed strings). Returns 0 on success. |
2502 | */ | |
2503 | int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, | |
817cd0d5 | 2504 | unsigned int protos_len) |
0f113f3e | 2505 | { |
aff8c126 RS |
2506 | OPENSSL_free(ctx->ext.alpn); |
2507 | ctx->ext.alpn = OPENSSL_memdup(protos, protos_len); | |
2508 | if (ctx->ext.alpn == NULL) { | |
72e9be3d | 2509 | SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); |
0f113f3e | 2510 | return 1; |
72e9be3d | 2511 | } |
aff8c126 | 2512 | ctx->ext.alpn_len = protos_len; |
0f113f3e MC |
2513 | |
2514 | return 0; | |
2515 | } | |
2516 | ||
2517 | /* | |
2518 | * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|. | |
6f017a8f | 2519 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2520 | * length-prefixed strings). Returns 0 on success. |
2521 | */ | |
2522 | int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, | |
817cd0d5 | 2523 | unsigned int protos_len) |
0f113f3e | 2524 | { |
aff8c126 RS |
2525 | OPENSSL_free(ssl->ext.alpn); |
2526 | ssl->ext.alpn = OPENSSL_memdup(protos, protos_len); | |
2527 | if (ssl->ext.alpn == NULL) { | |
72e9be3d | 2528 | SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); |
0f113f3e | 2529 | return 1; |
72e9be3d | 2530 | } |
aff8c126 | 2531 | ssl->ext.alpn_len = protos_len; |
0f113f3e MC |
2532 | |
2533 | return 0; | |
2534 | } | |
2535 | ||
2536 | /* | |
2537 | * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is | |
2538 | * called during ClientHello processing in order to select an ALPN protocol | |
2539 | * from the client's list of offered protocols. | |
2540 | */ | |
2541 | void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx, | |
8cbfcc70 RS |
2542 | SSL_CTX_alpn_select_cb_func cb, |
2543 | void *arg) | |
0f113f3e | 2544 | { |
aff8c126 RS |
2545 | ctx->ext.alpn_select_cb = cb; |
2546 | ctx->ext.alpn_select_cb_arg = arg; | |
0f113f3e MC |
2547 | } |
2548 | ||
2549 | /* | |
69687aa8 F |
2550 | * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|. |
2551 | * On return it sets |*data| to point to |*len| bytes of protocol name | |
0f113f3e MC |
2552 | * (not including the leading length-prefix byte). If the server didn't |
2553 | * respond with a negotiated protocol then |*len| will be zero. | |
2554 | */ | |
6f017a8f | 2555 | void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, |
817cd0d5 | 2556 | unsigned int *len) |
0f113f3e MC |
2557 | { |
2558 | *data = NULL; | |
2559 | if (ssl->s3) | |
2560 | *data = ssl->s3->alpn_selected; | |
2561 | if (*data == NULL) | |
2562 | *len = 0; | |
2563 | else | |
348240c6 | 2564 | *len = (unsigned int)ssl->s3->alpn_selected_len; |
0f113f3e MC |
2565 | } |
2566 | ||
74b4b494 | 2567 | int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, |
0f113f3e MC |
2568 | const char *label, size_t llen, |
2569 | const unsigned char *p, size_t plen, | |
2570 | int use_context) | |
2571 | { | |
c8a18468 | 2572 | if (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER) |
0f113f3e | 2573 | return -1; |
e0af0405 | 2574 | |
0f113f3e MC |
2575 | return s->method->ssl3_enc->export_keying_material(s, out, olen, label, |
2576 | llen, p, plen, | |
2577 | use_context); | |
2578 | } | |
e0af0405 | 2579 | |
3c1d6bbc | 2580 | static unsigned long ssl_session_hash(const SSL_SESSION *a) |
0f113f3e | 2581 | { |
bd5d27c1 | 2582 | const unsigned char *session_id = a->session_id; |
0f113f3e | 2583 | unsigned long l; |
bd5d27c1 DB |
2584 | unsigned char tmp_storage[4]; |
2585 | ||
2586 | if (a->session_id_length < sizeof(tmp_storage)) { | |
2587 | memset(tmp_storage, 0, sizeof(tmp_storage)); | |
2588 | memcpy(tmp_storage, a->session_id, a->session_id_length); | |
2589 | session_id = tmp_storage; | |
2590 | } | |
0f113f3e MC |
2591 | |
2592 | l = (unsigned long) | |
bd5d27c1 DB |
2593 | ((unsigned long)session_id[0]) | |
2594 | ((unsigned long)session_id[1] << 8L) | | |
2595 | ((unsigned long)session_id[2] << 16L) | | |
2596 | ((unsigned long)session_id[3] << 24L); | |
0f113f3e MC |
2597 | return (l); |
2598 | } | |
2599 | ||
2600 | /* | |
2601 | * NB: If this function (or indeed the hash function which uses a sort of | |
dc644fe2 | 2602 | * coarser function than this one) is changed, ensure |
0f113f3e MC |
2603 | * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on |
2604 | * being able to construct an SSL_SESSION that will collide with any existing | |
2605 | * session with a matching session ID. | |
2606 | */ | |
2607 | static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) | |
2608 | { | |
2609 | if (a->ssl_version != b->ssl_version) | |
2610 | return (1); | |
2611 | if (a->session_id_length != b->session_id_length) | |
2612 | return (1); | |
2613 | return (memcmp(a->session_id, b->session_id, a->session_id_length)); | |
2614 | } | |
2615 | ||
2616 | /* | |
2617 | * These wrapper functions should remain rather than redeclaring | |
d0fa136c | 2618 | * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each |
0f113f3e MC |
2619 | * variable. The reason is that the functions aren't static, they're exposed |
2620 | * via ssl.h. | |
2621 | */ | |
97b17195 | 2622 | |
4ebb342f | 2623 | SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth) |
0f113f3e MC |
2624 | { |
2625 | SSL_CTX *ret = NULL; | |
2626 | ||
2627 | if (meth == NULL) { | |
2628 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED); | |
2629 | return (NULL); | |
2630 | } | |
2631 | ||
0fc32b07 MC |
2632 | if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL)) |
2633 | return NULL; | |
7fa792d1 | 2634 | |
0f113f3e MC |
2635 | if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { |
2636 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); | |
2637 | goto err; | |
2638 | } | |
b51bce94 | 2639 | ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e MC |
2640 | if (ret == NULL) |
2641 | goto err; | |
2642 | ||
0f113f3e | 2643 | ret->method = meth; |
7946ab33 KR |
2644 | ret->min_proto_version = 0; |
2645 | ret->max_proto_version = 0; | |
0f113f3e MC |
2646 | ret->session_cache_mode = SSL_SESS_CACHE_SERVER; |
2647 | ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; | |
64b25758 | 2648 | /* We take the system default. */ |
0f113f3e | 2649 | ret->session_timeout = meth->get_timeout(); |
0f113f3e | 2650 | ret->references = 1; |
16203f7b AG |
2651 | ret->lock = CRYPTO_THREAD_lock_new(); |
2652 | if (ret->lock == NULL) { | |
2653 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2654 | OPENSSL_free(ret); | |
2655 | return NULL; | |
2656 | } | |
0f113f3e | 2657 | ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; |
0f113f3e | 2658 | ret->verify_mode = SSL_VERIFY_NONE; |
0f113f3e MC |
2659 | if ((ret->cert = ssl_cert_new()) == NULL) |
2660 | goto err; | |
2661 | ||
62d0577e | 2662 | ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp); |
0f113f3e MC |
2663 | if (ret->sessions == NULL) |
2664 | goto err; | |
2665 | ret->cert_store = X509_STORE_new(); | |
2666 | if (ret->cert_store == NULL) | |
2667 | goto err; | |
ed29e82a RP |
2668 | #ifndef OPENSSL_NO_CT |
2669 | ret->ctlog_store = CTLOG_STORE_new(); | |
2670 | if (ret->ctlog_store == NULL) | |
2671 | goto err; | |
2672 | #endif | |
61986d32 | 2673 | if (!ssl_create_cipher_list(ret->method, |
a230b26e EK |
2674 | &ret->cipher_list, &ret->cipher_list_by_id, |
2675 | SSL_DEFAULT_CIPHER_LIST, ret->cert) | |
2676 | || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { | |
0f113f3e MC |
2677 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS); |
2678 | goto err2; | |
2679 | } | |
2680 | ||
2681 | ret->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 2682 | if (ret->param == NULL) |
0f113f3e MC |
2683 | goto err; |
2684 | ||
2685 | if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) { | |
2686 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); | |
2687 | goto err2; | |
2688 | } | |
2689 | if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) { | |
2690 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); | |
2691 | goto err2; | |
2692 | } | |
2693 | ||
2694 | if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL) | |
2695 | goto err; | |
2696 | ||
25a807bc F |
2697 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) |
2698 | goto err; | |
0f113f3e | 2699 | |
0f113f3e MC |
2700 | /* No compression for DTLS */ |
2701 | if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)) | |
2702 | ret->comp_methods = SSL_COMP_get_compression_methods(); | |
2703 | ||
2704 | ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; | |
d102d9df | 2705 | ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; |
566dda07 | 2706 | |
4e2e1ec9 | 2707 | /* Setup RFC5077 ticket keys */ |
aff8c126 RS |
2708 | if ((RAND_bytes(ret->ext.tick_key_name, |
2709 | sizeof(ret->ext.tick_key_name)) <= 0) | |
2710 | || (RAND_bytes(ret->ext.tick_hmac_key, | |
2711 | sizeof(ret->ext.tick_hmac_key)) <= 0) | |
2712 | || (RAND_bytes(ret->ext.tick_aes_key, | |
2713 | sizeof(ret->ext.tick_aes_key)) <= 0)) | |
0f113f3e | 2714 | ret->options |= SSL_OP_NO_TICKET; |
6434abbf | 2715 | |
edc032b5 | 2716 | #ifndef OPENSSL_NO_SRP |
61986d32 | 2717 | if (!SSL_CTX_SRP_CTX_init(ret)) |
69f68237 | 2718 | goto err; |
edc032b5 | 2719 | #endif |
4db9677b | 2720 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e MC |
2721 | # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO |
2722 | # define eng_strx(x) #x | |
2723 | # define eng_str(x) eng_strx(x) | |
2724 | /* Use specific client engine automatically... ignore errors */ | |
2725 | { | |
2726 | ENGINE *eng; | |
2727 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2728 | if (!eng) { | |
2729 | ERR_clear_error(); | |
2730 | ENGINE_load_builtin_engines(); | |
2731 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2732 | } | |
2733 | if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) | |
2734 | ERR_clear_error(); | |
2735 | } | |
2736 | # endif | |
2737 | #endif | |
2738 | /* | |
2739 | * Default is to connect to non-RI servers. When RI is more widely | |
2740 | * deployed might change this. | |
2741 | */ | |
2742 | ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; | |
dc5744cb EK |
2743 | /* |
2744 | * Disable compression by default to prevent CRIME. Applications can | |
2745 | * re-enable compression by configuring | |
2746 | * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION); | |
2747 | * or by using the SSL_CONF library. | |
2748 | */ | |
2749 | ret->options |= SSL_OP_NO_COMPRESSION; | |
0f113f3e | 2750 | |
aff8c126 | 2751 | ret->ext.status_type = TLSEXT_STATUSTYPE_nothing; |
ba261f71 | 2752 | |
bfa9a9af MC |
2753 | /* |
2754 | * Default max early data is a fully loaded single record. Could be split | |
2755 | * across multiple records in practice | |
2756 | */ | |
2757 | ret->max_early_data = SSL3_RT_MAX_PLAIN_LENGTH; | |
2758 | ||
16203f7b | 2759 | return ret; |
0f113f3e MC |
2760 | err: |
2761 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2762 | err2: | |
e0e920b1 | 2763 | SSL_CTX_free(ret); |
16203f7b | 2764 | return NULL; |
0f113f3e | 2765 | } |
d02b48c6 | 2766 | |
c5ebfcab | 2767 | int SSL_CTX_up_ref(SSL_CTX *ctx) |
a18a31e4 | 2768 | { |
16203f7b | 2769 | int i; |
c5ebfcab | 2770 | |
2f545ae4 | 2771 | if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0) |
c5ebfcab F |
2772 | return 0; |
2773 | ||
2774 | REF_PRINT_COUNT("SSL_CTX", ctx); | |
2775 | REF_ASSERT_ISNT(i < 2); | |
2776 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
2777 | } |
2778 | ||
4f43d0e7 | 2779 | void SSL_CTX_free(SSL_CTX *a) |
0f113f3e MC |
2780 | { |
2781 | int i; | |
d02b48c6 | 2782 | |
0f113f3e MC |
2783 | if (a == NULL) |
2784 | return; | |
d02b48c6 | 2785 | |
2f545ae4 | 2786 | CRYPTO_DOWN_REF(&a->references, &i, a->lock); |
f3f1cf84 | 2787 | REF_PRINT_COUNT("SSL_CTX", a); |
0f113f3e MC |
2788 | if (i > 0) |
2789 | return; | |
f3f1cf84 | 2790 | REF_ASSERT_ISNT(i < 0); |
0f113f3e | 2791 | |
222561fe | 2792 | X509_VERIFY_PARAM_free(a->param); |
919ba009 | 2793 | dane_ctx_final(&a->dane); |
0f113f3e MC |
2794 | |
2795 | /* | |
2796 | * Free internal session cache. However: the remove_cb() may reference | |
2797 | * the ex_data of SSL_CTX, thus the ex_data store can only be removed | |
2798 | * after the sessions were flushed. | |
2799 | * As the ex_data handling routines might also touch the session cache, | |
2800 | * the most secure solution seems to be: empty (flush) the cache, then | |
2801 | * free ex_data, then finally free the cache. | |
2802 | * (See ticket [openssl.org #212].) | |
2803 | */ | |
2804 | if (a->sessions != NULL) | |
2805 | SSL_CTX_flush_sessions(a, 0); | |
2806 | ||
2807 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); | |
25aaa98a | 2808 | lh_SSL_SESSION_free(a->sessions); |
222561fe | 2809 | X509_STORE_free(a->cert_store); |
ed29e82a RP |
2810 | #ifndef OPENSSL_NO_CT |
2811 | CTLOG_STORE_free(a->ctlog_store); | |
2812 | #endif | |
25aaa98a RS |
2813 | sk_SSL_CIPHER_free(a->cipher_list); |
2814 | sk_SSL_CIPHER_free(a->cipher_list_by_id); | |
e0e920b1 | 2815 | ssl_cert_free(a->cert); |
222561fe RS |
2816 | sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free); |
2817 | sk_X509_pop_free(a->extra_certs, X509_free); | |
0f113f3e | 2818 | a->comp_methods = NULL; |
e783bae2 | 2819 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 2820 | sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); |
e783bae2 | 2821 | #endif |
edc032b5 | 2822 | #ifndef OPENSSL_NO_SRP |
0f113f3e | 2823 | SSL_CTX_SRP_CTX_free(a); |
edc032b5 | 2824 | #endif |
bdfe932d | 2825 | #ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 2826 | ENGINE_finish(a->client_cert_engine); |
ddac1974 | 2827 | #endif |
8671b898 | 2828 | |
e481f9b9 | 2829 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
2830 | OPENSSL_free(a->ext.ecpointformats); |
2831 | OPENSSL_free(a->ext.supportedgroups); | |
8671b898 | 2832 | #endif |
aff8c126 | 2833 | OPENSSL_free(a->ext.alpn); |
8671b898 | 2834 | |
16203f7b AG |
2835 | CRYPTO_THREAD_lock_free(a->lock); |
2836 | ||
0f113f3e MC |
2837 | OPENSSL_free(a); |
2838 | } | |
d02b48c6 | 2839 | |
3ae76679 | 2840 | void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) |
0f113f3e MC |
2841 | { |
2842 | ctx->default_passwd_callback = cb; | |
2843 | } | |
2844 | ||
2845 | void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) | |
2846 | { | |
2847 | ctx->default_passwd_callback_userdata = u; | |
2848 | } | |
2849 | ||
0c452abc CH |
2850 | pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) |
2851 | { | |
2852 | return ctx->default_passwd_callback; | |
2853 | } | |
2854 | ||
2855 | void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) | |
2856 | { | |
2857 | return ctx->default_passwd_callback_userdata; | |
2858 | } | |
2859 | ||
a974e64a MC |
2860 | void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb) |
2861 | { | |
2862 | s->default_passwd_callback = cb; | |
2863 | } | |
2864 | ||
2865 | void SSL_set_default_passwd_cb_userdata(SSL *s, void *u) | |
2866 | { | |
2867 | s->default_passwd_callback_userdata = u; | |
2868 | } | |
2869 | ||
0c452abc CH |
2870 | pem_password_cb *SSL_get_default_passwd_cb(SSL *s) |
2871 | { | |
2872 | return s->default_passwd_callback; | |
2873 | } | |
2874 | ||
2875 | void *SSL_get_default_passwd_cb_userdata(SSL *s) | |
2876 | { | |
2877 | return s->default_passwd_callback_userdata; | |
2878 | } | |
2879 | ||
0f113f3e MC |
2880 | void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, |
2881 | int (*cb) (X509_STORE_CTX *, void *), | |
2882 | void *arg) | |
2883 | { | |
2884 | ctx->app_verify_callback = cb; | |
2885 | ctx->app_verify_arg = arg; | |
2886 | } | |
2887 | ||
2888 | void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, | |
2889 | int (*cb) (int, X509_STORE_CTX *)) | |
2890 | { | |
2891 | ctx->verify_mode = mode; | |
2892 | ctx->default_verify_callback = cb; | |
2893 | } | |
2894 | ||
2895 | void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) | |
2896 | { | |
2897 | X509_VERIFY_PARAM_set_depth(ctx->param, depth); | |
2898 | } | |
2899 | ||
a230b26e | 2900 | void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg) |
0f113f3e MC |
2901 | { |
2902 | ssl_cert_set_cert_cb(c->cert, cb, arg); | |
2903 | } | |
2904 | ||
2905 | void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg) | |
2906 | { | |
2907 | ssl_cert_set_cert_cb(s->cert, cb, arg); | |
2908 | } | |
18d71588 | 2909 | |
2cf28d61 | 2910 | void ssl_set_masks(SSL *s) |
0f113f3e | 2911 | { |
6383d316 | 2912 | CERT *c = s->cert; |
f7d53487 | 2913 | uint32_t *pvalid = s->s3->tmp.valid_flags; |
bc71f910 | 2914 | int rsa_enc, rsa_sign, dh_tmp, dsa_sign; |
361a1191 | 2915 | unsigned long mask_k, mask_a; |
10bf4fc2 | 2916 | #ifndef OPENSSL_NO_EC |
361a1191 | 2917 | int have_ecc_cert, ecdsa_ok; |
14536c8c | 2918 | #endif |
0f113f3e MC |
2919 | if (c == NULL) |
2920 | return; | |
d02b48c6 | 2921 | |
bc36ee62 | 2922 | #ifndef OPENSSL_NO_DH |
0f113f3e | 2923 | dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto); |
d02b48c6 | 2924 | #else |
361a1191 | 2925 | dh_tmp = 0; |
d02b48c6 RE |
2926 | #endif |
2927 | ||
d0ff28f8 | 2928 | rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID; |
38e8f3cd DSH |
2929 | rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID; |
2930 | dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID; | |
14536c8c | 2931 | #ifndef OPENSSL_NO_EC |
6383d316 | 2932 | have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID; |
14536c8c | 2933 | #endif |
0f113f3e MC |
2934 | mask_k = 0; |
2935 | mask_a = 0; | |
0e1dba93 | 2936 | |
d02b48c6 | 2937 | #ifdef CIPHER_DEBUG |
b7557ccf AG |
2938 | fprintf(stderr, "dht=%d re=%d rs=%d ds=%d\n", |
2939 | dh_tmp, rsa_enc, rsa_sign, dsa_sign); | |
0f113f3e MC |
2940 | #endif |
2941 | ||
2a9b9654 | 2942 | #ifndef OPENSSL_NO_GOST |
4020c0b3 | 2943 | if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) { |
e44380a9 DB |
2944 | mask_k |= SSL_kGOST; |
2945 | mask_a |= SSL_aGOST12; | |
2946 | } | |
4020c0b3 | 2947 | if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) { |
e44380a9 DB |
2948 | mask_k |= SSL_kGOST; |
2949 | mask_a |= SSL_aGOST12; | |
2950 | } | |
4020c0b3 | 2951 | if (ssl_has_cert(s, SSL_PKEY_GOST01)) { |
0f113f3e MC |
2952 | mask_k |= SSL_kGOST; |
2953 | mask_a |= SSL_aGOST01; | |
2954 | } | |
2a9b9654 | 2955 | #endif |
0f113f3e | 2956 | |
361a1191 | 2957 | if (rsa_enc) |
0f113f3e | 2958 | mask_k |= SSL_kRSA; |
d02b48c6 | 2959 | |
0f113f3e MC |
2960 | if (dh_tmp) |
2961 | mask_k |= SSL_kDHE; | |
d02b48c6 | 2962 | |
0f113f3e MC |
2963 | if (rsa_enc || rsa_sign) { |
2964 | mask_a |= SSL_aRSA; | |
0f113f3e | 2965 | } |
d02b48c6 | 2966 | |
0f113f3e MC |
2967 | if (dsa_sign) { |
2968 | mask_a |= SSL_aDSS; | |
0f113f3e | 2969 | } |
d02b48c6 | 2970 | |
0f113f3e | 2971 | mask_a |= SSL_aNULL; |
d02b48c6 | 2972 | |
0f113f3e MC |
2973 | /* |
2974 | * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites | |
2975 | * depending on the key usage extension. | |
2976 | */ | |
14536c8c | 2977 | #ifndef OPENSSL_NO_EC |
0f113f3e | 2978 | if (have_ecc_cert) { |
a8d8e06b | 2979 | uint32_t ex_kusage; |
4020c0b3 | 2980 | ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509); |
a8d8e06b | 2981 | ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE; |
6383d316 | 2982 | if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN)) |
0f113f3e | 2983 | ecdsa_ok = 0; |
c7c46256 | 2984 | if (ecdsa_ok) |
0f113f3e | 2985 | mask_a |= SSL_aECDSA; |
0f113f3e | 2986 | } |
14536c8c | 2987 | #endif |
ea262260 | 2988 | |
10bf4fc2 | 2989 | #ifndef OPENSSL_NO_EC |
fe6ef247 | 2990 | mask_k |= SSL_kECDHE; |
ea262260 | 2991 | #endif |
ddac1974 NL |
2992 | |
2993 | #ifndef OPENSSL_NO_PSK | |
0f113f3e MC |
2994 | mask_k |= SSL_kPSK; |
2995 | mask_a |= SSL_aPSK; | |
526f94ad DSH |
2996 | if (mask_k & SSL_kRSA) |
2997 | mask_k |= SSL_kRSAPSK; | |
2998 | if (mask_k & SSL_kDHE) | |
2999 | mask_k |= SSL_kDHEPSK; | |
3000 | if (mask_k & SSL_kECDHE) | |
3001 | mask_k |= SSL_kECDHEPSK; | |
ddac1974 NL |
3002 | #endif |
3003 | ||
4d69f9e6 DSH |
3004 | s->s3->tmp.mask_k = mask_k; |
3005 | s->s3->tmp.mask_a = mask_a; | |
0f113f3e | 3006 | } |
d02b48c6 | 3007 | |
ef236ec3 DSH |
3008 | #ifndef OPENSSL_NO_EC |
3009 | ||
a2f9200f | 3010 | int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) |
0f113f3e | 3011 | { |
ce0c1f2b | 3012 | if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aECDSA) { |
0f113f3e | 3013 | /* key usage, if present, must allow signing */ |
ce0c1f2b | 3014 | if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) { |
0f113f3e MC |
3015 | SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, |
3016 | SSL_R_ECC_CERT_NOT_FOR_SIGNING); | |
3017 | return 0; | |
3018 | } | |
3019 | } | |
0f113f3e MC |
3020 | return 1; /* all checks are ok */ |
3021 | } | |
ea262260 | 3022 | |
ef236ec3 DSH |
3023 | #endif |
3024 | ||
a398f821 | 3025 | int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, |
0f113f3e MC |
3026 | size_t *serverinfo_length) |
3027 | { | |
a497cf25 | 3028 | CERT_PKEY *cpk = s->s3->tmp.cert; |
0f113f3e MC |
3029 | *serverinfo_length = 0; |
3030 | ||
a497cf25 | 3031 | if (cpk == NULL || cpk->serverinfo == NULL) |
0f113f3e MC |
3032 | return 0; |
3033 | ||
a497cf25 DSH |
3034 | *serverinfo = cpk->serverinfo; |
3035 | *serverinfo_length = cpk->serverinfo_length; | |
0f113f3e MC |
3036 | return 1; |
3037 | } | |
0f113f3e MC |
3038 | |
3039 | void ssl_update_cache(SSL *s, int mode) | |
3040 | { | |
3041 | int i; | |
3042 | ||
3043 | /* | |
3044 | * If the session_id_length is 0, we are not supposed to cache it, and it | |
3045 | * would be rather hard to do anyway :-) | |
3046 | */ | |
3047 | if (s->session->session_id_length == 0) | |
3048 | return; | |
3049 | ||
3050 | i = s->session_ctx->session_cache_mode; | |
3051 | if ((i & mode) && (!s->hit) | |
3052 | && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) | |
3053 | || SSL_CTX_add_session(s->session_ctx, s->session)) | |
3054 | && (s->session_ctx->new_session_cb != NULL)) { | |
16203f7b | 3055 | SSL_SESSION_up_ref(s->session); |
0f113f3e MC |
3056 | if (!s->session_ctx->new_session_cb(s, s->session)) |
3057 | SSL_SESSION_free(s->session); | |
3058 | } | |
3059 | ||
3060 | /* auto flush every 255 connections */ | |
3061 | if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) { | |
3062 | if ((((mode & SSL_SESS_CACHE_CLIENT) | |
3063 | ? s->session_ctx->stats.sess_connect_good | |
3064 | : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) { | |
3065 | SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL)); | |
3066 | } | |
3067 | } | |
3068 | } | |
d02b48c6 | 3069 | |
ba168244 | 3070 | const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx) |
0f113f3e MC |
3071 | { |
3072 | return ctx->method; | |
3073 | } | |
ba168244 | 3074 | |
4ebb342f | 3075 | const SSL_METHOD *SSL_get_ssl_method(SSL *s) |
0f113f3e MC |
3076 | { |
3077 | return (s->method); | |
3078 | } | |
d02b48c6 | 3079 | |
4ebb342f | 3080 | int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) |
0f113f3e | 3081 | { |
0f113f3e MC |
3082 | int ret = 1; |
3083 | ||
3084 | if (s->method != meth) { | |
919ba009 | 3085 | const SSL_METHOD *sm = s->method; |
a230b26e | 3086 | int (*hf) (SSL *) = s->handshake_func; |
0f113f3e | 3087 | |
919ba009 | 3088 | if (sm->version == meth->version) |
0f113f3e MC |
3089 | s->method = meth; |
3090 | else { | |
919ba009 | 3091 | sm->ssl_free(s); |
0f113f3e MC |
3092 | s->method = meth; |
3093 | ret = s->method->ssl_new(s); | |
3094 | } | |
3095 | ||
919ba009 | 3096 | if (hf == sm->ssl_connect) |
0f113f3e | 3097 | s->handshake_func = meth->ssl_connect; |
919ba009 | 3098 | else if (hf == sm->ssl_accept) |
0f113f3e MC |
3099 | s->handshake_func = meth->ssl_accept; |
3100 | } | |
3101 | return (ret); | |
3102 | } | |
3103 | ||
3104 | int SSL_get_error(const SSL *s, int i) | |
3105 | { | |
3106 | int reason; | |
3107 | unsigned long l; | |
3108 | BIO *bio; | |
3109 | ||
3110 | if (i > 0) | |
3111 | return (SSL_ERROR_NONE); | |
3112 | ||
3113 | /* | |
3114 | * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc, | |
3115 | * where we do encode the error | |
3116 | */ | |
3117 | if ((l = ERR_peek_error()) != 0) { | |
3118 | if (ERR_GET_LIB(l) == ERR_LIB_SYS) | |
3119 | return (SSL_ERROR_SYSCALL); | |
3120 | else | |
3121 | return (SSL_ERROR_SSL); | |
3122 | } | |
3123 | ||
8051ab2b MC |
3124 | if (SSL_want_read(s)) { |
3125 | bio = SSL_get_rbio(s); | |
3126 | if (BIO_should_read(bio)) | |
3127 | return (SSL_ERROR_WANT_READ); | |
3128 | else if (BIO_should_write(bio)) | |
3129 | /* | |
3130 | * This one doesn't make too much sense ... We never try to write | |
3131 | * to the rbio, and an application program where rbio and wbio | |
3132 | * are separate couldn't even know what it should wait for. | |
3133 | * However if we ever set s->rwstate incorrectly (so that we have | |
3134 | * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and | |
3135 | * wbio *are* the same, this test works around that bug; so it | |
3136 | * might be safer to keep it. | |
3137 | */ | |
3138 | return (SSL_ERROR_WANT_WRITE); | |
3139 | else if (BIO_should_io_special(bio)) { | |
3140 | reason = BIO_get_retry_reason(bio); | |
3141 | if (reason == BIO_RR_CONNECT) | |
3142 | return (SSL_ERROR_WANT_CONNECT); | |
3143 | else if (reason == BIO_RR_ACCEPT) | |
3144 | return (SSL_ERROR_WANT_ACCEPT); | |
3145 | else | |
3146 | return (SSL_ERROR_SYSCALL); /* unknown */ | |
0f113f3e | 3147 | } |
8051ab2b | 3148 | } |
0f113f3e | 3149 | |
8051ab2b | 3150 | if (SSL_want_write(s)) { |
69687aa8 | 3151 | /* Access wbio directly - in order to use the buffered bio if present */ |
8051ab2b MC |
3152 | bio = s->wbio; |
3153 | if (BIO_should_write(bio)) | |
3154 | return (SSL_ERROR_WANT_WRITE); | |
3155 | else if (BIO_should_read(bio)) | |
2e7dc7cd | 3156 | /* |
8051ab2b | 3157 | * See above (SSL_want_read(s) with BIO_should_write(bio)) |
2e7dc7cd | 3158 | */ |
8051ab2b MC |
3159 | return (SSL_ERROR_WANT_READ); |
3160 | else if (BIO_should_io_special(bio)) { | |
3161 | reason = BIO_get_retry_reason(bio); | |
3162 | if (reason == BIO_RR_CONNECT) | |
3163 | return (SSL_ERROR_WANT_CONNECT); | |
3164 | else if (reason == BIO_RR_ACCEPT) | |
3165 | return (SSL_ERROR_WANT_ACCEPT); | |
3166 | else | |
3167 | return (SSL_ERROR_SYSCALL); | |
0f113f3e | 3168 | } |
07bbc92c | 3169 | } |
6b1bb98f | 3170 | if (SSL_want_x509_lookup(s)) |
8051ab2b | 3171 | return (SSL_ERROR_WANT_X509_LOOKUP); |
6b1bb98f | 3172 | if (SSL_want_async(s)) |
8051ab2b | 3173 | return SSL_ERROR_WANT_ASYNC; |
6b1bb98f | 3174 | if (SSL_want_async_job(s)) |
8051ab2b | 3175 | return SSL_ERROR_WANT_ASYNC_JOB; |
6b1bb98f BK |
3176 | if (SSL_want_early(s)) |
3177 | return SSL_ERROR_WANT_EARLY; | |
8051ab2b MC |
3178 | |
3179 | if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && | |
3180 | (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) | |
3181 | return (SSL_ERROR_ZERO_RETURN); | |
3182 | ||
0f113f3e MC |
3183 | return (SSL_ERROR_SYSCALL); |
3184 | } | |
d02b48c6 | 3185 | |
add2f5ca MC |
3186 | static int ssl_do_handshake_intern(void *vargs) |
3187 | { | |
3188 | struct ssl_async_args *args; | |
3189 | SSL *s; | |
3190 | ||
3191 | args = (struct ssl_async_args *)vargs; | |
3192 | s = args->s; | |
3193 | ||
3194 | return s->handshake_func(s); | |
3195 | } | |
3196 | ||
4f43d0e7 | 3197 | int SSL_do_handshake(SSL *s) |
0f113f3e MC |
3198 | { |
3199 | int ret = 1; | |
3200 | ||
3201 | if (s->handshake_func == NULL) { | |
3202 | SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET); | |
add2f5ca | 3203 | return -1; |
0f113f3e MC |
3204 | } |
3205 | ||
3eaa4170 | 3206 | ossl_statem_check_finish_init(s, -1); |
49e7fe12 | 3207 | |
c7f47786 | 3208 | s->method->ssl_renegotiate_check(s, 0); |
0f113f3e MC |
3209 | |
3210 | if (SSL_in_init(s) || SSL_in_before(s)) { | |
e8aa8b6c | 3211 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca MC |
3212 | struct ssl_async_args args; |
3213 | ||
3214 | args.s = s; | |
3215 | ||
7fecbf6f | 3216 | ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern); |
add2f5ca MC |
3217 | } else { |
3218 | ret = s->handshake_func(s); | |
3219 | } | |
0f113f3e | 3220 | } |
add2f5ca | 3221 | return ret; |
0f113f3e MC |
3222 | } |
3223 | ||
4f43d0e7 | 3224 | void SSL_set_accept_state(SSL *s) |
0f113f3e MC |
3225 | { |
3226 | s->server = 1; | |
3227 | s->shutdown = 0; | |
fe3a3291 | 3228 | ossl_statem_clear(s); |
0f113f3e | 3229 | s->handshake_func = s->method->ssl_accept; |
d31fb0b5 | 3230 | clear_ciphers(s); |
0f113f3e | 3231 | } |
d02b48c6 | 3232 | |
4f43d0e7 | 3233 | void SSL_set_connect_state(SSL *s) |
0f113f3e MC |
3234 | { |
3235 | s->server = 0; | |
3236 | s->shutdown = 0; | |
fe3a3291 | 3237 | ossl_statem_clear(s); |
0f113f3e | 3238 | s->handshake_func = s->method->ssl_connect; |
d31fb0b5 | 3239 | clear_ciphers(s); |
0f113f3e | 3240 | } |
d02b48c6 | 3241 | |
4f43d0e7 | 3242 | int ssl_undefined_function(SSL *s) |
0f113f3e MC |
3243 | { |
3244 | SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3245 | return (0); | |
3246 | } | |
d02b48c6 | 3247 | |
41a15c4f | 3248 | int ssl_undefined_void_function(void) |
0f113f3e MC |
3249 | { |
3250 | SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION, | |
3251 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3252 | return (0); | |
3253 | } | |
41a15c4f | 3254 | |
0821bcd4 | 3255 | int ssl_undefined_const_function(const SSL *s) |
0f113f3e | 3256 | { |
0f113f3e MC |
3257 | return (0); |
3258 | } | |
0821bcd4 | 3259 | |
2b8fa1d5 | 3260 | const SSL_METHOD *ssl_bad_method(int ver) |
0f113f3e MC |
3261 | { |
3262 | SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3263 | return (NULL); | |
3264 | } | |
d02b48c6 | 3265 | |
3eb2aff4 | 3266 | const char *ssl_protocol_to_string(int version) |
7d650072 | 3267 | { |
2abacef1 MC |
3268 | switch(version) |
3269 | { | |
3270 | case TLS1_3_VERSION: | |
582a17d6 | 3271 | return "TLSv1.3"; |
2abacef1 MC |
3272 | |
3273 | case TLS1_2_VERSION: | |
7d650072 | 3274 | return "TLSv1.2"; |
2abacef1 MC |
3275 | |
3276 | case TLS1_1_VERSION: | |
7d650072 | 3277 | return "TLSv1.1"; |
2abacef1 MC |
3278 | |
3279 | case TLS1_VERSION: | |
ee3a6c64 | 3280 | return "TLSv1"; |
2abacef1 MC |
3281 | |
3282 | case SSL3_VERSION: | |
7d650072 | 3283 | return "SSLv3"; |
2abacef1 MC |
3284 | |
3285 | case DTLS1_BAD_VER: | |
7d650072 | 3286 | return "DTLSv0.9"; |
2abacef1 MC |
3287 | |
3288 | case DTLS1_VERSION: | |
7d650072 | 3289 | return "DTLSv1"; |
2abacef1 MC |
3290 | |
3291 | case DTLS1_2_VERSION: | |
7d650072 | 3292 | return "DTLSv1.2"; |
2abacef1 MC |
3293 | |
3294 | default: | |
3295 | return "unknown"; | |
3296 | } | |
0f113f3e | 3297 | } |
d02b48c6 | 3298 | |
7d650072 KR |
3299 | const char *SSL_get_version(const SSL *s) |
3300 | { | |
3eb2aff4 | 3301 | return ssl_protocol_to_string(s->version); |
7d650072 KR |
3302 | } |
3303 | ||
4f43d0e7 | 3304 | SSL *SSL_dup(SSL *s) |
0f113f3e MC |
3305 | { |
3306 | STACK_OF(X509_NAME) *sk; | |
3307 | X509_NAME *xn; | |
3308 | SSL *ret; | |
3309 | int i; | |
3310 | ||
919ba009 VD |
3311 | /* If we're not quiescent, just up_ref! */ |
3312 | if (!SSL_in_init(s) || !SSL_in_before(s)) { | |
2f545ae4 | 3313 | CRYPTO_UP_REF(&s->references, &i, s->lock); |
919ba009 VD |
3314 | return s; |
3315 | } | |
3316 | ||
3317 | /* | |
3318 | * Otherwise, copy configuration state, and session if set. | |
3319 | */ | |
0f113f3e MC |
3320 | if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) |
3321 | return (NULL); | |
3322 | ||
0f113f3e | 3323 | if (s->session != NULL) { |
919ba009 VD |
3324 | /* |
3325 | * Arranges to share the same session via up_ref. This "copies" | |
3326 | * session-id, SSL_METHOD, sid_ctx, and 'cert' | |
3327 | */ | |
61986d32 | 3328 | if (!SSL_copy_session_id(ret, s)) |
17dd65e6 | 3329 | goto err; |
0f113f3e MC |
3330 | } else { |
3331 | /* | |
3332 | * No session has been established yet, so we have to expect that | |
3333 | * s->cert or ret->cert will be changed later -- they should not both | |
3334 | * point to the same object, and thus we can't use | |
3335 | * SSL_copy_session_id. | |
3336 | */ | |
919ba009 VD |
3337 | if (!SSL_set_ssl_method(ret, s->method)) |
3338 | goto err; | |
0f113f3e MC |
3339 | |
3340 | if (s->cert != NULL) { | |
e0e920b1 | 3341 | ssl_cert_free(ret->cert); |
0f113f3e MC |
3342 | ret->cert = ssl_cert_dup(s->cert); |
3343 | if (ret->cert == NULL) | |
3344 | goto err; | |
3345 | } | |
3346 | ||
348240c6 MC |
3347 | if (!SSL_set_session_id_context(ret, s->sid_ctx, |
3348 | (int)s->sid_ctx_length)) | |
69f68237 | 3349 | goto err; |
0f113f3e MC |
3350 | } |
3351 | ||
9f6b22b8 VD |
3352 | if (!ssl_dane_dup(ret, s)) |
3353 | goto err; | |
919ba009 | 3354 | ret->version = s->version; |
0f113f3e MC |
3355 | ret->options = s->options; |
3356 | ret->mode = s->mode; | |
3357 | SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); | |
3358 | SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); | |
3359 | ret->msg_callback = s->msg_callback; | |
3360 | ret->msg_callback_arg = s->msg_callback_arg; | |
3361 | SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s)); | |
3362 | SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); | |
3363 | ret->generate_session_id = s->generate_session_id; | |
3364 | ||
3365 | SSL_set_info_callback(ret, SSL_get_info_callback(s)); | |
3366 | ||
0f113f3e MC |
3367 | /* copy app data, a little dangerous perhaps */ |
3368 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) | |
3369 | goto err; | |
3370 | ||
3371 | /* setup rbio, and wbio */ | |
3372 | if (s->rbio != NULL) { | |
3373 | if (!BIO_dup_state(s->rbio, (char *)&ret->rbio)) | |
3374 | goto err; | |
3375 | } | |
3376 | if (s->wbio != NULL) { | |
3377 | if (s->wbio != s->rbio) { | |
3378 | if (!BIO_dup_state(s->wbio, (char *)&ret->wbio)) | |
3379 | goto err; | |
65e2d672 MC |
3380 | } else { |
3381 | BIO_up_ref(ret->rbio); | |
0f113f3e | 3382 | ret->wbio = ret->rbio; |
65e2d672 | 3383 | } |
0f113f3e | 3384 | } |
919ba009 | 3385 | |
0f113f3e | 3386 | ret->server = s->server; |
919ba009 VD |
3387 | if (s->handshake_func) { |
3388 | if (s->server) | |
3389 | SSL_set_accept_state(ret); | |
3390 | else | |
3391 | SSL_set_connect_state(ret); | |
3392 | } | |
0f113f3e | 3393 | ret->shutdown = s->shutdown; |
0f113f3e MC |
3394 | ret->hit = s->hit; |
3395 | ||
a974e64a MC |
3396 | ret->default_passwd_callback = s->default_passwd_callback; |
3397 | ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata; | |
3398 | ||
0f113f3e MC |
3399 | X509_VERIFY_PARAM_inherit(ret->param, s->param); |
3400 | ||
3401 | /* dup the cipher_list and cipher_list_by_id stacks */ | |
3402 | if (s->cipher_list != NULL) { | |
3403 | if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) | |
3404 | goto err; | |
3405 | } | |
3406 | if (s->cipher_list_by_id != NULL) | |
3407 | if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id)) | |
3408 | == NULL) | |
3409 | goto err; | |
3410 | ||
3411 | /* Dup the client_CA list */ | |
3412 | if (s->client_CA != NULL) { | |
3413 | if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL) | |
3414 | goto err; | |
3415 | ret->client_CA = sk; | |
3416 | for (i = 0; i < sk_X509_NAME_num(sk); i++) { | |
3417 | xn = sk_X509_NAME_value(sk, i); | |
3418 | if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) { | |
3419 | X509_NAME_free(xn); | |
3420 | goto err; | |
3421 | } | |
3422 | } | |
3423 | } | |
66696478 | 3424 | return ret; |
0f113f3e | 3425 | |
0f113f3e | 3426 | err: |
66696478 RS |
3427 | SSL_free(ret); |
3428 | return NULL; | |
0f113f3e | 3429 | } |
d02b48c6 | 3430 | |
4f43d0e7 | 3431 | void ssl_clear_cipher_ctx(SSL *s) |
0f113f3e MC |
3432 | { |
3433 | if (s->enc_read_ctx != NULL) { | |
846ec07d | 3434 | EVP_CIPHER_CTX_free(s->enc_read_ctx); |
0f113f3e MC |
3435 | s->enc_read_ctx = NULL; |
3436 | } | |
3437 | if (s->enc_write_ctx != NULL) { | |
846ec07d | 3438 | EVP_CIPHER_CTX_free(s->enc_write_ctx); |
0f113f3e MC |
3439 | s->enc_write_ctx = NULL; |
3440 | } | |
09b6c2ef | 3441 | #ifndef OPENSSL_NO_COMP |
efa7dd64 RS |
3442 | COMP_CTX_free(s->expand); |
3443 | s->expand = NULL; | |
3444 | COMP_CTX_free(s->compress); | |
3445 | s->compress = NULL; | |
0f113f3e MC |
3446 | #endif |
3447 | } | |
d02b48c6 | 3448 | |
0821bcd4 | 3449 | X509 *SSL_get_certificate(const SSL *s) |
0f113f3e MC |
3450 | { |
3451 | if (s->cert != NULL) | |
3452 | return (s->cert->key->x509); | |
3453 | else | |
3454 | return (NULL); | |
3455 | } | |
d02b48c6 | 3456 | |
a25f9adc | 3457 | EVP_PKEY *SSL_get_privatekey(const SSL *s) |
0f113f3e MC |
3458 | { |
3459 | if (s->cert != NULL) | |
3460 | return (s->cert->key->privatekey); | |
3461 | else | |
3462 | return (NULL); | |
3463 | } | |
d02b48c6 | 3464 | |
a25f9adc | 3465 | X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx) |
0f113f3e MC |
3466 | { |
3467 | if (ctx->cert != NULL) | |
3468 | return ctx->cert->key->x509; | |
3469 | else | |
3470 | return NULL; | |
3471 | } | |
a25f9adc DSH |
3472 | |
3473 | EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx) | |
0f113f3e MC |
3474 | { |
3475 | if (ctx->cert != NULL) | |
3476 | return ctx->cert->key->privatekey; | |
3477 | else | |
3478 | return NULL; | |
3479 | } | |
a25f9adc | 3480 | |
babb3798 | 3481 | const SSL_CIPHER *SSL_get_current_cipher(const SSL *s) |
0f113f3e MC |
3482 | { |
3483 | if ((s->session != NULL) && (s->session->cipher != NULL)) | |
3484 | return (s->session->cipher); | |
3485 | return (NULL); | |
3486 | } | |
3487 | ||
377dcdba | 3488 | const COMP_METHOD *SSL_get_current_compression(SSL *s) |
0f113f3e | 3489 | { |
9a555706 RS |
3490 | #ifndef OPENSSL_NO_COMP |
3491 | return s->compress ? COMP_CTX_get_method(s->compress) : NULL; | |
3492 | #else | |
3493 | return NULL; | |
3494 | #endif | |
0f113f3e | 3495 | } |
377dcdba RL |
3496 | |
3497 | const COMP_METHOD *SSL_get_current_expansion(SSL *s) | |
0f113f3e | 3498 | { |
9a555706 RS |
3499 | #ifndef OPENSSL_NO_COMP |
3500 | return s->expand ? COMP_CTX_get_method(s->expand) : NULL; | |
3501 | #else | |
3502 | return NULL; | |
0f113f3e | 3503 | #endif |
9a555706 | 3504 | } |
0f113f3e | 3505 | |
46417569 | 3506 | int ssl_init_wbio_buffer(SSL *s) |
0f113f3e MC |
3507 | { |
3508 | BIO *bbio; | |
3509 | ||
2e7dc7cd MC |
3510 | if (s->bbio != NULL) { |
3511 | /* Already buffered. */ | |
3512 | return 1; | |
0f113f3e | 3513 | } |
46417569 | 3514 | |
2e7dc7cd MC |
3515 | bbio = BIO_new(BIO_f_buffer()); |
3516 | if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) { | |
3517 | BIO_free(bbio); | |
0f113f3e | 3518 | SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB); |
46417569 | 3519 | return 0; |
0f113f3e | 3520 | } |
2e7dc7cd MC |
3521 | s->bbio = bbio; |
3522 | s->wbio = BIO_push(bbio, s->wbio); | |
46417569 MC |
3523 | |
3524 | return 1; | |
0f113f3e | 3525 | } |
413c4f45 | 3526 | |
4f43d0e7 | 3527 | void ssl_free_wbio_buffer(SSL *s) |
0f113f3e | 3528 | { |
62adbcee | 3529 | /* callers ensure s is never null */ |
0f113f3e MC |
3530 | if (s->bbio == NULL) |
3531 | return; | |
3532 | ||
2e7dc7cd MC |
3533 | s->wbio = BIO_pop(s->wbio); |
3534 | assert(s->wbio != NULL); | |
0f113f3e MC |
3535 | BIO_free(s->bbio); |
3536 | s->bbio = NULL; | |
3537 | } | |
3538 | ||
3539 | void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) | |
3540 | { | |
3541 | ctx->quiet_shutdown = mode; | |
3542 | } | |
58964a49 | 3543 | |
0821bcd4 | 3544 | int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) |
0f113f3e MC |
3545 | { |
3546 | return (ctx->quiet_shutdown); | |
3547 | } | |
58964a49 | 3548 | |
0f113f3e MC |
3549 | void SSL_set_quiet_shutdown(SSL *s, int mode) |
3550 | { | |
3551 | s->quiet_shutdown = mode; | |
3552 | } | |
58964a49 | 3553 | |
0821bcd4 | 3554 | int SSL_get_quiet_shutdown(const SSL *s) |
0f113f3e MC |
3555 | { |
3556 | return (s->quiet_shutdown); | |
3557 | } | |
58964a49 | 3558 | |
0f113f3e MC |
3559 | void SSL_set_shutdown(SSL *s, int mode) |
3560 | { | |
3561 | s->shutdown = mode; | |
3562 | } | |
58964a49 | 3563 | |
0821bcd4 | 3564 | int SSL_get_shutdown(const SSL *s) |
0f113f3e | 3565 | { |
6546e9b2 | 3566 | return s->shutdown; |
0f113f3e | 3567 | } |
58964a49 | 3568 | |
0821bcd4 | 3569 | int SSL_version(const SSL *s) |
0f113f3e | 3570 | { |
6546e9b2 AG |
3571 | return s->version; |
3572 | } | |
3573 | ||
3574 | int SSL_client_version(const SSL *s) | |
3575 | { | |
3576 | return s->client_version; | |
0f113f3e | 3577 | } |
58964a49 | 3578 | |
0821bcd4 | 3579 | SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) |
0f113f3e | 3580 | { |
6546e9b2 | 3581 | return ssl->ctx; |
0f113f3e MC |
3582 | } |
3583 | ||
3584 | SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx) | |
3585 | { | |
24a0d393 | 3586 | CERT *new_cert; |
0f113f3e MC |
3587 | if (ssl->ctx == ctx) |
3588 | return ssl->ctx; | |
0f113f3e | 3589 | if (ctx == NULL) |
222da979 | 3590 | ctx = ssl->session_ctx; |
24a0d393 KR |
3591 | new_cert = ssl_cert_dup(ctx->cert); |
3592 | if (new_cert == NULL) { | |
3593 | return NULL; | |
0f113f3e | 3594 | } |
24a0d393 KR |
3595 | ssl_cert_free(ssl->cert); |
3596 | ssl->cert = new_cert; | |
0f113f3e MC |
3597 | |
3598 | /* | |
3599 | * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH), | |
3600 | * so setter APIs must prevent invalid lengths from entering the system. | |
3601 | */ | |
3602 | OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx)); | |
3603 | ||
3604 | /* | |
3605 | * If the session ID context matches that of the parent SSL_CTX, | |
3606 | * inherit it from the new SSL_CTX as well. If however the context does | |
3607 | * not match (i.e., it was set per-ssl with SSL_set_session_id_context), | |
3608 | * leave it unchanged. | |
3609 | */ | |
3610 | if ((ssl->ctx != NULL) && | |
3611 | (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) && | |
3612 | (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) { | |
3613 | ssl->sid_ctx_length = ctx->sid_ctx_length; | |
3614 | memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx)); | |
3615 | } | |
3616 | ||
16203f7b | 3617 | SSL_CTX_up_ref(ctx); |
a230b26e | 3618 | SSL_CTX_free(ssl->ctx); /* decrement reference count */ |
0f113f3e MC |
3619 | ssl->ctx = ctx; |
3620 | ||
16203f7b | 3621 | return ssl->ctx; |
0f113f3e | 3622 | } |
ed3883d2 | 3623 | |
4f43d0e7 | 3624 | int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) |
0f113f3e MC |
3625 | { |
3626 | return (X509_STORE_set_default_paths(ctx->cert_store)); | |
3627 | } | |
58964a49 | 3628 | |
d84a7b20 MC |
3629 | int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx) |
3630 | { | |
3631 | X509_LOOKUP *lookup; | |
3632 | ||
3633 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir()); | |
3634 | if (lookup == NULL) | |
3635 | return 0; | |
3636 | X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT); | |
3637 | ||
3638 | /* Clear any errors if the default directory does not exist */ | |
3639 | ERR_clear_error(); | |
3640 | ||
3641 | return 1; | |
3642 | } | |
3643 | ||
3644 | int SSL_CTX_set_default_verify_file(SSL_CTX *ctx) | |
3645 | { | |
3646 | X509_LOOKUP *lookup; | |
3647 | ||
3648 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file()); | |
3649 | if (lookup == NULL) | |
3650 | return 0; | |
3651 | ||
3652 | X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT); | |
3653 | ||
3654 | /* Clear any errors if the default file does not exist */ | |
3655 | ERR_clear_error(); | |
3656 | ||
3657 | return 1; | |
3658 | } | |
3659 | ||
303c0028 | 3660 | int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, |
0f113f3e MC |
3661 | const char *CApath) |
3662 | { | |
3663 | return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); | |
3664 | } | |
58964a49 | 3665 | |
45d87a1f | 3666 | void SSL_set_info_callback(SSL *ssl, |
0f113f3e MC |
3667 | void (*cb) (const SSL *ssl, int type, int val)) |
3668 | { | |
3669 | ssl->info_callback = cb; | |
3670 | } | |
3671 | ||
3672 | /* | |
3673 | * One compiler (Diab DCC) doesn't like argument names in returned function | |
3674 | * pointer. | |
3675 | */ | |
3676 | void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ , | |
3677 | int /* type */ , | |
3678 | int /* val */ ) { | |
3679 | return ssl->info_callback; | |
3680 | } | |
58964a49 | 3681 | |
0f113f3e MC |
3682 | void SSL_set_verify_result(SSL *ssl, long arg) |
3683 | { | |
3684 | ssl->verify_result = arg; | |
3685 | } | |
58964a49 | 3686 | |
0821bcd4 | 3687 | long SSL_get_verify_result(const SSL *ssl) |
0f113f3e MC |
3688 | { |
3689 | return (ssl->verify_result); | |
3690 | } | |
3691 | ||
d9f1c639 | 3692 | size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 3693 | { |
6b8f5d0d | 3694 | if (outlen == 0) |
858618e7 NM |
3695 | return sizeof(ssl->s3->client_random); |
3696 | if (outlen > sizeof(ssl->s3->client_random)) | |
3697 | outlen = sizeof(ssl->s3->client_random); | |
3698 | memcpy(out, ssl->s3->client_random, outlen); | |
d9f1c639 | 3699 | return outlen; |
858618e7 NM |
3700 | } |
3701 | ||
d9f1c639 | 3702 | size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 3703 | { |
6b8f5d0d | 3704 | if (outlen == 0) |
858618e7 NM |
3705 | return sizeof(ssl->s3->server_random); |
3706 | if (outlen > sizeof(ssl->s3->server_random)) | |
3707 | outlen = sizeof(ssl->s3->server_random); | |
3708 | memcpy(out, ssl->s3->server_random, outlen); | |
d9f1c639 | 3709 | return outlen; |
858618e7 NM |
3710 | } |
3711 | ||
d9f1c639 | 3712 | size_t SSL_SESSION_get_master_key(const SSL_SESSION *session, |
a230b26e | 3713 | unsigned char *out, size_t outlen) |
858618e7 | 3714 | { |
d9f1c639 MC |
3715 | if (outlen == 0) |
3716 | return session->master_key_length; | |
8c1a5343 | 3717 | if (outlen > session->master_key_length) |
858618e7 NM |
3718 | outlen = session->master_key_length; |
3719 | memcpy(out, session->master_key, outlen); | |
d9f1c639 | 3720 | return outlen; |
858618e7 NM |
3721 | } |
3722 | ||
0f113f3e MC |
3723 | int SSL_set_ex_data(SSL *s, int idx, void *arg) |
3724 | { | |
3725 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | |
3726 | } | |
3727 | ||
3728 | void *SSL_get_ex_data(const SSL *s, int idx) | |
3729 | { | |
3730 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | |
3731 | } | |
3732 | ||
0f113f3e MC |
3733 | int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) |
3734 | { | |
3735 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | |
3736 | } | |
3737 | ||
3738 | void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) | |
3739 | { | |
3740 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | |
3741 | } | |
58964a49 | 3742 | |
0821bcd4 | 3743 | X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) |
0f113f3e MC |
3744 | { |
3745 | return (ctx->cert_store); | |
3746 | } | |
413c4f45 | 3747 | |
0f113f3e MC |
3748 | void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) |
3749 | { | |
222561fe | 3750 | X509_STORE_free(ctx->cert_store); |
0f113f3e MC |
3751 | ctx->cert_store = store; |
3752 | } | |
413c4f45 | 3753 | |
b50052db TS |
3754 | void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store) |
3755 | { | |
3756 | if (store != NULL) | |
3757 | X509_STORE_up_ref(store); | |
3758 | SSL_CTX_set_cert_store(ctx, store); | |
3759 | } | |
3760 | ||
0821bcd4 | 3761 | int SSL_want(const SSL *s) |
0f113f3e MC |
3762 | { |
3763 | return (s->rwstate); | |
3764 | } | |
413c4f45 | 3765 | |
0f113f3e | 3766 | /** |
4f43d0e7 BL |
3767 | * \brief Set the callback for generating temporary DH keys. |
3768 | * \param ctx the SSL context. | |
3769 | * \param dh the callback | |
3770 | */ | |
3771 | ||
bc36ee62 | 3772 | #ifndef OPENSSL_NO_DH |
0f113f3e MC |
3773 | void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, |
3774 | DH *(*dh) (SSL *ssl, int is_export, | |
3775 | int keylength)) | |
3776 | { | |
3777 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3778 | } | |
f8c3c05d | 3779 | |
0f113f3e MC |
3780 | void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export, |
3781 | int keylength)) | |
3782 | { | |
3783 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3784 | } | |
79df9d62 | 3785 | #endif |
15d21c2d | 3786 | |
ddac1974 NL |
3787 | #ifndef OPENSSL_NO_PSK |
3788 | int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) | |
0f113f3e MC |
3789 | { |
3790 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { | |
a230b26e | 3791 | SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); |
0f113f3e MC |
3792 | return 0; |
3793 | } | |
df6da24b | 3794 | OPENSSL_free(ctx->cert->psk_identity_hint); |
0f113f3e | 3795 | if (identity_hint != NULL) { |
7644a9ae | 3796 | ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 3797 | if (ctx->cert->psk_identity_hint == NULL) |
0f113f3e MC |
3798 | return 0; |
3799 | } else | |
df6da24b | 3800 | ctx->cert->psk_identity_hint = NULL; |
0f113f3e MC |
3801 | return 1; |
3802 | } | |
ddac1974 NL |
3803 | |
3804 | int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) | |
0f113f3e MC |
3805 | { |
3806 | if (s == NULL) | |
3807 | return 0; | |
3808 | ||
0f113f3e MC |
3809 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { |
3810 | SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); | |
3811 | return 0; | |
3812 | } | |
df6da24b | 3813 | OPENSSL_free(s->cert->psk_identity_hint); |
0f113f3e | 3814 | if (identity_hint != NULL) { |
7644a9ae | 3815 | s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 3816 | if (s->cert->psk_identity_hint == NULL) |
0f113f3e MC |
3817 | return 0; |
3818 | } else | |
df6da24b | 3819 | s->cert->psk_identity_hint = NULL; |
0f113f3e MC |
3820 | return 1; |
3821 | } | |
ddac1974 NL |
3822 | |
3823 | const char *SSL_get_psk_identity_hint(const SSL *s) | |
0f113f3e MC |
3824 | { |
3825 | if (s == NULL || s->session == NULL) | |
3826 | return NULL; | |
3827 | return (s->session->psk_identity_hint); | |
3828 | } | |
ddac1974 NL |
3829 | |
3830 | const char *SSL_get_psk_identity(const SSL *s) | |
0f113f3e MC |
3831 | { |
3832 | if (s == NULL || s->session == NULL) | |
3833 | return NULL; | |
3834 | return (s->session->psk_identity); | |
3835 | } | |
7806f3dd | 3836 | |
8cbfcc70 | 3837 | void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb) |
0f113f3e MC |
3838 | { |
3839 | s->psk_client_callback = cb; | |
3840 | } | |
7806f3dd | 3841 | |
8cbfcc70 | 3842 | void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb) |
0f113f3e MC |
3843 | { |
3844 | ctx->psk_client_callback = cb; | |
3845 | } | |
7806f3dd | 3846 | |
8cbfcc70 | 3847 | void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb) |
0f113f3e MC |
3848 | { |
3849 | s->psk_server_callback = cb; | |
3850 | } | |
7806f3dd | 3851 | |
8cbfcc70 | 3852 | void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb) |
0f113f3e MC |
3853 | { |
3854 | ctx->psk_server_callback = cb; | |
3855 | } | |
3856 | #endif | |
3857 | ||
3858 | void SSL_CTX_set_msg_callback(SSL_CTX *ctx, | |
3859 | void (*cb) (int write_p, int version, | |
3860 | int content_type, const void *buf, | |
3861 | size_t len, SSL *ssl, void *arg)) | |
3862 | { | |
3863 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
3864 | } | |
3865 | ||
3866 | void SSL_set_msg_callback(SSL *ssl, | |
3867 | void (*cb) (int write_p, int version, | |
3868 | int content_type, const void *buf, | |
3869 | size_t len, SSL *ssl, void *arg)) | |
3870 | { | |
3871 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
3872 | } | |
a661b653 | 3873 | |
7c2d4fee | 3874 | void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, |
0f113f3e MC |
3875 | int (*cb) (SSL *ssl, |
3876 | int | |
3877 | is_forward_secure)) | |
3878 | { | |
3879 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
3880 | (void (*)(void))cb); | |
3881 | } | |
3882 | ||
7c2d4fee | 3883 | void SSL_set_not_resumable_session_callback(SSL *ssl, |
0f113f3e MC |
3884 | int (*cb) (SSL *ssl, |
3885 | int is_forward_secure)) | |
3886 | { | |
3887 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
3888 | (void (*)(void))cb); | |
3889 | } | |
3890 | ||
3891 | /* | |
3892 | * Allocates new EVP_MD_CTX and sets pointer to it into given pointer | |
8483a003 | 3893 | * variable, freeing EVP_MD_CTX previously stored in that variable, if any. |
69687aa8 | 3894 | * If EVP_MD pointer is passed, initializes ctx with this |md|. |
48722ff5 | 3895 | * Returns the newly allocated ctx; |
8671b898 | 3896 | */ |
b948e2c5 | 3897 | |
0f113f3e | 3898 | EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md) |
b948e2c5 | 3899 | { |
0f113f3e | 3900 | ssl_clear_hash_ctx(hash); |
bfb0641f | 3901 | *hash = EVP_MD_CTX_new(); |
5f3d93e4 | 3902 | if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) { |
bfb0641f | 3903 | EVP_MD_CTX_free(*hash); |
5f3d93e4 MC |
3904 | *hash = NULL; |
3905 | return NULL; | |
3906 | } | |
0f113f3e | 3907 | return *hash; |
b948e2c5 | 3908 | } |
0f113f3e MC |
3909 | |
3910 | void ssl_clear_hash_ctx(EVP_MD_CTX **hash) | |
b948e2c5 DSH |
3911 | { |
3912 | ||
0d9824c1 | 3913 | EVP_MD_CTX_free(*hash); |
0f113f3e | 3914 | *hash = NULL; |
b948e2c5 | 3915 | } |
a661b653 | 3916 | |
48fbcbac | 3917 | /* Retrieve handshake hashes */ |
8c1a5343 MC |
3918 | int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen, |
3919 | size_t *hashlen) | |
48fbcbac | 3920 | { |
6e59a892 | 3921 | EVP_MD_CTX *ctx = NULL; |
28ba2541 | 3922 | EVP_MD_CTX *hdgst = s->s3->handshake_dgst; |
8c1a5343 MC |
3923 | int hashleni = EVP_MD_CTX_size(hdgst); |
3924 | int ret = 0; | |
3925 | ||
3926 | if (hashleni < 0 || (size_t)hashleni > outlen) | |
28ba2541 | 3927 | goto err; |
8c1a5343 | 3928 | |
bfb0641f | 3929 | ctx = EVP_MD_CTX_new(); |
8c1a5343 | 3930 | if (ctx == NULL) |
6e59a892 | 3931 | goto err; |
8c1a5343 | 3932 | |
6e59a892 RL |
3933 | if (!EVP_MD_CTX_copy_ex(ctx, hdgst) |
3934 | || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) | |
8c1a5343 MC |
3935 | goto err; |
3936 | ||
3937 | *hashlen = hashleni; | |
3938 | ||
3939 | ret = 1; | |
48fbcbac | 3940 | err: |
bfb0641f | 3941 | EVP_MD_CTX_free(ctx); |
48fbcbac DSH |
3942 | return ret; |
3943 | } | |
3944 | ||
b577fd0b | 3945 | int SSL_session_reused(SSL *s) |
0f113f3e MC |
3946 | { |
3947 | return s->hit; | |
3948 | } | |
08557cf2 | 3949 | |
87adf1fa | 3950 | int SSL_is_server(SSL *s) |
0f113f3e MC |
3951 | { |
3952 | return s->server; | |
3953 | } | |
87adf1fa | 3954 | |
47153c72 RS |
3955 | #if OPENSSL_API_COMPAT < 0x10100000L |
3956 | void SSL_set_debug(SSL *s, int debug) | |
3957 | { | |
3958 | /* Old function was do-nothing anyway... */ | |
3959 | (void)s; | |
3960 | (void)debug; | |
3961 | } | |
3962 | #endif | |
3963 | ||
b362ccab | 3964 | void SSL_set_security_level(SSL *s, int level) |
0f113f3e MC |
3965 | { |
3966 | s->cert->sec_level = level; | |
3967 | } | |
b362ccab DSH |
3968 | |
3969 | int SSL_get_security_level(const SSL *s) | |
0f113f3e MC |
3970 | { |
3971 | return s->cert->sec_level; | |
3972 | } | |
b362ccab | 3973 | |
0f113f3e | 3974 | void SSL_set_security_callback(SSL *s, |
a230b26e EK |
3975 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
3976 | int op, int bits, int nid, | |
3977 | void *other, void *ex)) | |
0f113f3e MC |
3978 | { |
3979 | s->cert->sec_cb = cb; | |
3980 | } | |
b362ccab | 3981 | |
a230b26e EK |
3982 | int (*SSL_get_security_callback(const SSL *s)) (const SSL *s, |
3983 | const SSL_CTX *ctx, int op, | |
3984 | int bits, int nid, void *other, | |
3985 | void *ex) { | |
0f113f3e MC |
3986 | return s->cert->sec_cb; |
3987 | } | |
b362ccab DSH |
3988 | |
3989 | void SSL_set0_security_ex_data(SSL *s, void *ex) | |
0f113f3e MC |
3990 | { |
3991 | s->cert->sec_ex = ex; | |
3992 | } | |
b362ccab DSH |
3993 | |
3994 | void *SSL_get0_security_ex_data(const SSL *s) | |
0f113f3e MC |
3995 | { |
3996 | return s->cert->sec_ex; | |
3997 | } | |
b362ccab DSH |
3998 | |
3999 | void SSL_CTX_set_security_level(SSL_CTX *ctx, int level) | |
0f113f3e MC |
4000 | { |
4001 | ctx->cert->sec_level = level; | |
4002 | } | |
b362ccab DSH |
4003 | |
4004 | int SSL_CTX_get_security_level(const SSL_CTX *ctx) | |
0f113f3e MC |
4005 | { |
4006 | return ctx->cert->sec_level; | |
4007 | } | |
b362ccab | 4008 | |
0f113f3e | 4009 | void SSL_CTX_set_security_callback(SSL_CTX *ctx, |
a230b26e EK |
4010 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
4011 | int op, int bits, int nid, | |
4012 | void *other, void *ex)) | |
0f113f3e MC |
4013 | { |
4014 | ctx->cert->sec_cb = cb; | |
4015 | } | |
b362ccab | 4016 | |
e4646a89 KR |
4017 | int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s, |
4018 | const SSL_CTX *ctx, | |
0f113f3e MC |
4019 | int op, int bits, |
4020 | int nid, | |
4021 | void *other, | |
4022 | void *ex) { | |
4023 | return ctx->cert->sec_cb; | |
4024 | } | |
b362ccab DSH |
4025 | |
4026 | void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex) | |
0f113f3e MC |
4027 | { |
4028 | ctx->cert->sec_ex = ex; | |
4029 | } | |
b362ccab DSH |
4030 | |
4031 | void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx) | |
0f113f3e MC |
4032 | { |
4033 | return ctx->cert->sec_ex; | |
4034 | } | |
b362ccab | 4035 | |
8106cb8b VD |
4036 | /* |
4037 | * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that | |
4038 | * can return unsigned long, instead of the generic long return value from the | |
4039 | * control interface. | |
4040 | */ | |
4041 | unsigned long SSL_CTX_get_options(const SSL_CTX *ctx) | |
4042 | { | |
4043 | return ctx->options; | |
4044 | } | |
a230b26e EK |
4045 | |
4046 | unsigned long SSL_get_options(const SSL *s) | |
8106cb8b VD |
4047 | { |
4048 | return s->options; | |
4049 | } | |
a230b26e | 4050 | |
8106cb8b VD |
4051 | unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op) |
4052 | { | |
4053 | return ctx->options |= op; | |
4054 | } | |
a230b26e | 4055 | |
8106cb8b VD |
4056 | unsigned long SSL_set_options(SSL *s, unsigned long op) |
4057 | { | |
4058 | return s->options |= op; | |
4059 | } | |
a230b26e | 4060 | |
8106cb8b VD |
4061 | unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op) |
4062 | { | |
4063 | return ctx->options &= ~op; | |
4064 | } | |
a230b26e | 4065 | |
8106cb8b VD |
4066 | unsigned long SSL_clear_options(SSL *s, unsigned long op) |
4067 | { | |
4068 | return s->options &= ~op; | |
4069 | } | |
4070 | ||
696178ed DSH |
4071 | STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s) |
4072 | { | |
4073 | return s->verified_chain; | |
4074 | } | |
4075 | ||
0f113f3e | 4076 | IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); |
ed29e82a RP |
4077 | |
4078 | #ifndef OPENSSL_NO_CT | |
4079 | ||
4080 | /* | |
4081 | * Moves SCTs from the |src| stack to the |dst| stack. | |
4082 | * The source of each SCT will be set to |origin|. | |
4083 | * If |dst| points to a NULL pointer, a new stack will be created and owned by | |
4084 | * the caller. | |
4085 | * Returns the number of SCTs moved, or a negative integer if an error occurs. | |
4086 | */ | |
a230b26e EK |
4087 | static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src, |
4088 | sct_source_t origin) | |
ed29e82a RP |
4089 | { |
4090 | int scts_moved = 0; | |
4091 | SCT *sct = NULL; | |
4092 | ||
4093 | if (*dst == NULL) { | |
4094 | *dst = sk_SCT_new_null(); | |
4095 | if (*dst == NULL) { | |
4096 | SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE); | |
4097 | goto err; | |
4098 | } | |
4099 | } | |
4100 | ||
4101 | while ((sct = sk_SCT_pop(src)) != NULL) { | |
4102 | if (SCT_set_source(sct, origin) != 1) | |
4103 | goto err; | |
4104 | ||
4105 | if (sk_SCT_push(*dst, sct) <= 0) | |
4106 | goto err; | |
4107 | scts_moved += 1; | |
4108 | } | |
4109 | ||
4110 | return scts_moved; | |
a230b26e | 4111 | err: |
ed29e82a | 4112 | if (sct != NULL) |
a230b26e | 4113 | sk_SCT_push(src, sct); /* Put the SCT back */ |
cc7113e8 | 4114 | return -1; |
ed29e82a RP |
4115 | } |
4116 | ||
4117 | /* | |
a230b26e | 4118 | * Look for data collected during ServerHello and parse if found. |
6b13bd1d | 4119 | * Returns the number of SCTs extracted. |
a230b26e | 4120 | */ |
ed29e82a RP |
4121 | static int ct_extract_tls_extension_scts(SSL *s) |
4122 | { | |
4123 | int scts_extracted = 0; | |
4124 | ||
aff8c126 RS |
4125 | if (s->ext.scts != NULL) { |
4126 | const unsigned char *p = s->ext.scts; | |
4127 | STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len); | |
ed29e82a RP |
4128 | |
4129 | scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION); | |
4130 | ||
4131 | SCT_LIST_free(scts); | |
4132 | } | |
4133 | ||
4134 | return scts_extracted; | |
4135 | } | |
4136 | ||
4137 | /* | |
4138 | * Checks for an OCSP response and then attempts to extract any SCTs found if it | |
4139 | * contains an SCT X509 extension. They will be stored in |s->scts|. | |
4140 | * Returns: | |
4141 | * - The number of SCTs extracted, assuming an OCSP response exists. | |
4142 | * - 0 if no OCSP response exists or it contains no SCTs. | |
4143 | * - A negative integer if an error occurs. | |
4144 | */ | |
4145 | static int ct_extract_ocsp_response_scts(SSL *s) | |
4146 | { | |
a230b26e | 4147 | # ifndef OPENSSL_NO_OCSP |
ed29e82a RP |
4148 | int scts_extracted = 0; |
4149 | const unsigned char *p; | |
4150 | OCSP_BASICRESP *br = NULL; | |
4151 | OCSP_RESPONSE *rsp = NULL; | |
4152 | STACK_OF(SCT) *scts = NULL; | |
4153 | int i; | |
4154 | ||
aff8c126 | 4155 | if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0) |
ed29e82a RP |
4156 | goto err; |
4157 | ||
aff8c126 RS |
4158 | p = s->ext.ocsp.resp; |
4159 | rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len); | |
ed29e82a RP |
4160 | if (rsp == NULL) |
4161 | goto err; | |
4162 | ||
4163 | br = OCSP_response_get1_basic(rsp); | |
4164 | if (br == NULL) | |
4165 | goto err; | |
4166 | ||
4167 | for (i = 0; i < OCSP_resp_count(br); ++i) { | |
4168 | OCSP_SINGLERESP *single = OCSP_resp_get0(br, i); | |
4169 | ||
4170 | if (single == NULL) | |
4171 | continue; | |
4172 | ||
a230b26e EK |
4173 | scts = |
4174 | OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL); | |
4175 | scts_extracted = | |
4176 | ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE); | |
ed29e82a RP |
4177 | if (scts_extracted < 0) |
4178 | goto err; | |
4179 | } | |
a230b26e | 4180 | err: |
ed29e82a RP |
4181 | SCT_LIST_free(scts); |
4182 | OCSP_BASICRESP_free(br); | |
4183 | OCSP_RESPONSE_free(rsp); | |
4184 | return scts_extracted; | |
a230b26e | 4185 | # else |
3e41ac35 MC |
4186 | /* Behave as if no OCSP response exists */ |
4187 | return 0; | |
a230b26e | 4188 | # endif |
ed29e82a RP |
4189 | } |
4190 | ||
4191 | /* | |
4192 | * Attempts to extract SCTs from the peer certificate. | |
4193 | * Return the number of SCTs extracted, or a negative integer if an error | |
4194 | * occurs. | |
4195 | */ | |
4196 | static int ct_extract_x509v3_extension_scts(SSL *s) | |
4197 | { | |
4198 | int scts_extracted = 0; | |
3f3c7d26 | 4199 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
ed29e82a RP |
4200 | |
4201 | if (cert != NULL) { | |
4202 | STACK_OF(SCT) *scts = | |
4203 | X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL); | |
4204 | ||
4205 | scts_extracted = | |
4206 | ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION); | |
4207 | ||
4208 | SCT_LIST_free(scts); | |
4209 | } | |
4210 | ||
4211 | return scts_extracted; | |
4212 | } | |
4213 | ||
4214 | /* | |
4215 | * Attempts to find all received SCTs by checking TLS extensions, the OCSP | |
4216 | * response (if it exists) and X509v3 extensions in the certificate. | |
4217 | * Returns NULL if an error occurs. | |
4218 | */ | |
4219 | const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s) | |
4220 | { | |
4221 | if (!s->scts_parsed) { | |
4222 | if (ct_extract_tls_extension_scts(s) < 0 || | |
4223 | ct_extract_ocsp_response_scts(s) < 0 || | |
4224 | ct_extract_x509v3_extension_scts(s) < 0) | |
4225 | goto err; | |
4226 | ||
4227 | s->scts_parsed = 1; | |
4228 | } | |
4229 | return s->scts; | |
a230b26e | 4230 | err: |
ed29e82a RP |
4231 | return NULL; |
4232 | } | |
4233 | ||
a230b26e | 4234 | static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx, |
43341433 | 4235 | const STACK_OF(SCT) *scts, void *unused_arg) |
ed29e82a | 4236 | { |
43341433 VD |
4237 | return 1; |
4238 | } | |
4239 | ||
a230b26e | 4240 | static int ct_strict(const CT_POLICY_EVAL_CTX * ctx, |
43341433 VD |
4241 | const STACK_OF(SCT) *scts, void *unused_arg) |
4242 | { | |
4243 | int count = scts != NULL ? sk_SCT_num(scts) : 0; | |
4244 | int i; | |
ed29e82a | 4245 | |
43341433 VD |
4246 | for (i = 0; i < count; ++i) { |
4247 | SCT *sct = sk_SCT_value(scts, i); | |
4248 | int status = SCT_get_validation_status(sct); | |
4249 | ||
4250 | if (status == SCT_VALIDATION_STATUS_VALID) | |
4251 | return 1; | |
4252 | } | |
4253 | SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS); | |
4254 | return 0; | |
4255 | } | |
4256 | ||
4257 | int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback, | |
4258 | void *arg) | |
4259 | { | |
ed29e82a RP |
4260 | /* |
4261 | * Since code exists that uses the custom extension handler for CT, look | |
4262 | * for this and throw an error if they have already registered to use CT. | |
4263 | */ | |
4264 | if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx, | |
a230b26e EK |
4265 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4266 | { | |
ed29e82a RP |
4267 | SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK, |
4268 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4269 | return 0; |
ed29e82a RP |
4270 | } |
4271 | ||
ed29e82a | 4272 | if (callback != NULL) { |
a230b26e EK |
4273 | /* |
4274 | * If we are validating CT, then we MUST accept SCTs served via OCSP | |
4275 | */ | |
ed29e82a | 4276 | if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp)) |
43341433 | 4277 | return 0; |
ed29e82a RP |
4278 | } |
4279 | ||
43341433 VD |
4280 | s->ct_validation_callback = callback; |
4281 | s->ct_validation_callback_arg = arg; | |
4282 | ||
4283 | return 1; | |
ed29e82a RP |
4284 | } |
4285 | ||
43341433 | 4286 | int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx, |
a230b26e | 4287 | ssl_ct_validation_cb callback, void *arg) |
ed29e82a | 4288 | { |
ed29e82a RP |
4289 | /* |
4290 | * Since code exists that uses the custom extension handler for CT, look for | |
4291 | * this and throw an error if they have already registered to use CT. | |
4292 | */ | |
4293 | if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx, | |
a230b26e EK |
4294 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4295 | { | |
ed29e82a RP |
4296 | SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK, |
4297 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4298 | return 0; |
ed29e82a RP |
4299 | } |
4300 | ||
4301 | ctx->ct_validation_callback = callback; | |
4302 | ctx->ct_validation_callback_arg = arg; | |
43341433 | 4303 | return 1; |
ed29e82a RP |
4304 | } |
4305 | ||
43341433 | 4306 | int SSL_ct_is_enabled(const SSL *s) |
ed29e82a | 4307 | { |
43341433 | 4308 | return s->ct_validation_callback != NULL; |
ed29e82a RP |
4309 | } |
4310 | ||
43341433 | 4311 | int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx) |
ed29e82a | 4312 | { |
43341433 | 4313 | return ctx->ct_validation_callback != NULL; |
ed29e82a RP |
4314 | } |
4315 | ||
4d482ee2 | 4316 | int ssl_validate_ct(SSL *s) |
ed29e82a RP |
4317 | { |
4318 | int ret = 0; | |
3f3c7d26 | 4319 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
43341433 | 4320 | X509 *issuer; |
b9aec69a | 4321 | SSL_DANE *dane = &s->dane; |
ed29e82a RP |
4322 | CT_POLICY_EVAL_CTX *ctx = NULL; |
4323 | const STACK_OF(SCT) *scts; | |
4324 | ||
43341433 VD |
4325 | /* |
4326 | * If no callback is set, the peer is anonymous, or its chain is invalid, | |
4327 | * skip SCT validation - just return success. Applications that continue | |
4328 | * handshakes without certificates, with unverified chains, or pinned leaf | |
4329 | * certificates are outside the scope of the WebPKI and CT. | |
4330 | * | |
4331 | * The above exclusions notwithstanding the vast majority of peers will | |
4332 | * have rather ordinary certificate chains validated by typical | |
4333 | * applications that perform certificate verification and therefore will | |
4334 | * process SCTs when enabled. | |
4335 | */ | |
4336 | if (s->ct_validation_callback == NULL || cert == NULL || | |
4337 | s->verify_result != X509_V_OK || | |
a230b26e | 4338 | s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1) |
ed29e82a RP |
4339 | return 1; |
4340 | ||
43341433 VD |
4341 | /* |
4342 | * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3) | |
4343 | * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2 | |
4344 | */ | |
4345 | if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) { | |
4346 | switch (dane->mtlsa->usage) { | |
4347 | case DANETLS_USAGE_DANE_TA: | |
4348 | case DANETLS_USAGE_DANE_EE: | |
4349 | return 1; | |
4350 | } | |
ed29e82a RP |
4351 | } |
4352 | ||
ed29e82a RP |
4353 | ctx = CT_POLICY_EVAL_CTX_new(); |
4354 | if (ctx == NULL) { | |
4355 | SSLerr(SSL_F_SSL_VALIDATE_CT, ERR_R_MALLOC_FAILURE); | |
4356 | goto end; | |
4357 | } | |
4358 | ||
43341433 | 4359 | issuer = sk_X509_value(s->verified_chain, 1); |
a1bb7708 RP |
4360 | CT_POLICY_EVAL_CTX_set1_cert(ctx, cert); |
4361 | CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer); | |
4362 | CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx, s->ctx->ctlog_store); | |
1fa9ffd9 | 4363 | CT_POLICY_EVAL_CTX_set_time(ctx, SSL_SESSION_get_time(SSL_get0_session(s))); |
ed29e82a RP |
4364 | |
4365 | scts = SSL_get0_peer_scts(s); | |
4366 | ||
43341433 VD |
4367 | /* |
4368 | * This function returns success (> 0) only when all the SCTs are valid, 0 | |
4369 | * when some are invalid, and < 0 on various internal errors (out of | |
4370 | * memory, etc.). Having some, or even all, invalid SCTs is not sufficient | |
4371 | * reason to abort the handshake, that decision is up to the callback. | |
4372 | * Therefore, we error out only in the unexpected case that the return | |
4373 | * value is negative. | |
4374 | * | |
4375 | * XXX: One might well argue that the return value of this function is an | |
f430ba31 | 4376 | * unfortunate design choice. Its job is only to determine the validation |
43341433 VD |
4377 | * status of each of the provided SCTs. So long as it correctly separates |
4378 | * the wheat from the chaff it should return success. Failure in this case | |
4379 | * ought to correspond to an inability to carry out its duties. | |
4380 | */ | |
4381 | if (SCT_LIST_validate(scts, ctx) < 0) { | |
ed29e82a RP |
4382 | SSLerr(SSL_F_SSL_VALIDATE_CT, SSL_R_SCT_VERIFICATION_FAILED); |
4383 | goto end; | |
4384 | } | |
4385 | ||
4386 | ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg); | |
4387 | if (ret < 0) | |
a230b26e | 4388 | ret = 0; /* This function returns 0 on failure */ |
ed29e82a | 4389 | |
a230b26e | 4390 | end: |
ed29e82a | 4391 | CT_POLICY_EVAL_CTX_free(ctx); |
f75b34c8 VD |
4392 | /* |
4393 | * With SSL_VERIFY_NONE the session may be cached and re-used despite a | |
4394 | * failure return code here. Also the application may wish the complete | |
4395 | * the handshake, and then disconnect cleanly at a higher layer, after | |
4396 | * checking the verification status of the completed connection. | |
4397 | * | |
4398 | * We therefore force a certificate verification failure which will be | |
4399 | * visible via SSL_get_verify_result() and cached as part of any resumed | |
4400 | * session. | |
4401 | * | |
4402 | * Note: the permissive callback is for information gathering only, always | |
4403 | * returns success, and does not affect verification status. Only the | |
4404 | * strict callback or a custom application-specified callback can trigger | |
4405 | * connection failure or record a verification error. | |
4406 | */ | |
4407 | if (ret <= 0) | |
4408 | s->verify_result = X509_V_ERR_NO_VALID_SCTS; | |
ed29e82a RP |
4409 | return ret; |
4410 | } | |
4411 | ||
43341433 VD |
4412 | int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode) |
4413 | { | |
4414 | switch (validation_mode) { | |
4415 | default: | |
4416 | SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
4417 | return 0; | |
4418 | case SSL_CT_VALIDATION_PERMISSIVE: | |
4419 | return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL); | |
4420 | case SSL_CT_VALIDATION_STRICT: | |
4421 | return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL); | |
4422 | } | |
4423 | } | |
4424 | ||
4425 | int SSL_enable_ct(SSL *s, int validation_mode) | |
4426 | { | |
4427 | switch (validation_mode) { | |
4428 | default: | |
4429 | SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
4430 | return 0; | |
4431 | case SSL_CT_VALIDATION_PERMISSIVE: | |
4432 | return SSL_set_ct_validation_callback(s, ct_permissive, NULL); | |
4433 | case SSL_CT_VALIDATION_STRICT: | |
4434 | return SSL_set_ct_validation_callback(s, ct_strict, NULL); | |
4435 | } | |
4436 | } | |
4437 | ||
ed29e82a RP |
4438 | int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx) |
4439 | { | |
328f36c5 | 4440 | return CTLOG_STORE_load_default_file(ctx->ctlog_store); |
ed29e82a RP |
4441 | } |
4442 | ||
4443 | int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path) | |
4444 | { | |
4445 | return CTLOG_STORE_load_file(ctx->ctlog_store, path); | |
4446 | } | |
4447 | ||
a230b26e | 4448 | void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs) |
8359b57f RP |
4449 | { |
4450 | CTLOG_STORE_free(ctx->ctlog_store); | |
4451 | ctx->ctlog_store = logs; | |
4452 | } | |
4453 | ||
4454 | const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx) | |
4455 | { | |
4456 | return ctx->ctlog_store; | |
4457 | } | |
4458 | ||
6b1bb98f BK |
4459 | #endif /* OPENSSL_NO_CT */ |
4460 | ||
4461 | void SSL_CTX_set_early_cb(SSL_CTX *c, SSL_early_cb_fn cb, void *arg) | |
4462 | { | |
4463 | c->early_cb = cb; | |
4464 | c->early_cb_arg = arg; | |
4465 | } | |
4466 | ||
4467 | int SSL_early_isv2(SSL *s) | |
4468 | { | |
4469 | if (s->clienthello == NULL) | |
4470 | return 0; | |
4471 | return s->clienthello->isv2; | |
4472 | } | |
4473 | ||
4474 | unsigned int SSL_early_get0_legacy_version(SSL *s) | |
4475 | { | |
4476 | if (s->clienthello == NULL) | |
4477 | return 0; | |
4478 | return s->clienthello->legacy_version; | |
4479 | } | |
4480 | ||
4481 | size_t SSL_early_get0_random(SSL *s, const unsigned char **out) | |
4482 | { | |
4483 | if (s->clienthello == NULL) | |
4484 | return 0; | |
4485 | if (out != NULL) | |
4486 | *out = s->clienthello->random; | |
4487 | return SSL3_RANDOM_SIZE; | |
4488 | } | |
4489 | ||
4490 | size_t SSL_early_get0_session_id(SSL *s, const unsigned char **out) | |
4491 | { | |
4492 | if (s->clienthello == NULL) | |
4493 | return 0; | |
4494 | if (out != NULL) | |
4495 | *out = s->clienthello->session_id; | |
4496 | return s->clienthello->session_id_len; | |
4497 | } | |
4498 | ||
4499 | size_t SSL_early_get0_ciphers(SSL *s, const unsigned char **out) | |
4500 | { | |
4501 | if (s->clienthello == NULL) | |
4502 | return 0; | |
4503 | if (out != NULL) | |
4504 | *out = PACKET_data(&s->clienthello->ciphersuites); | |
4505 | return PACKET_remaining(&s->clienthello->ciphersuites); | |
4506 | } | |
4507 | ||
4508 | size_t SSL_early_get0_compression_methods(SSL *s, const unsigned char **out) | |
4509 | { | |
4510 | if (s->clienthello == NULL) | |
4511 | return 0; | |
4512 | if (out != NULL) | |
4513 | *out = s->clienthello->compressions; | |
4514 | return s->clienthello->compressions_len; | |
4515 | } | |
4516 | ||
4517 | int SSL_early_get0_ext(SSL *s, unsigned int type, const unsigned char **out, | |
4518 | size_t *outlen) | |
4519 | { | |
4520 | size_t i; | |
4521 | RAW_EXTENSION *r; | |
4522 | ||
4523 | if (s->clienthello == NULL) | |
4524 | return 0; | |
4525 | for (i = 0; i < s->clienthello->pre_proc_exts_len; ++i) { | |
4526 | r = s->clienthello->pre_proc_exts + i; | |
4527 | if (r->present && r->type == type) { | |
4528 | if (out != NULL) | |
4529 | *out = PACKET_data(&r->data); | |
4530 | if (outlen != NULL) | |
4531 | *outlen = PACKET_remaining(&r->data); | |
4532 | return 1; | |
4533 | } | |
4534 | } | |
4535 | return 0; | |
4536 | } | |
2faa1b48 CB |
4537 | |
4538 | void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb) | |
4539 | { | |
4540 | ctx->keylog_callback = cb; | |
4541 | } | |
4542 | ||
4543 | SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx) | |
4544 | { | |
4545 | return ctx->keylog_callback; | |
4546 | } | |
4547 | ||
4548 | static int nss_keylog_int(const char *prefix, | |
4549 | SSL *ssl, | |
4550 | const uint8_t *parameter_1, | |
4551 | size_t parameter_1_len, | |
4552 | const uint8_t *parameter_2, | |
4553 | size_t parameter_2_len) | |
4554 | { | |
4555 | char *out = NULL; | |
4556 | char *cursor = NULL; | |
4557 | size_t out_len = 0; | |
4558 | size_t i; | |
4559 | size_t prefix_len; | |
4560 | ||
4561 | if (ssl->ctx->keylog_callback == NULL) return 1; | |
4562 | ||
4563 | /* | |
4564 | * Our output buffer will contain the following strings, rendered with | |
4565 | * space characters in between, terminated by a NULL character: first the | |
4566 | * prefix, then the first parameter, then the second parameter. The | |
4567 | * meaning of each parameter depends on the specific key material being | |
4568 | * logged. Note that the first and second parameters are encoded in | |
4569 | * hexadecimal, so we need a buffer that is twice their lengths. | |
4570 | */ | |
4571 | prefix_len = strlen(prefix); | |
4572 | out_len = prefix_len + (2*parameter_1_len) + (2*parameter_2_len) + 3; | |
4573 | if ((out = cursor = OPENSSL_malloc(out_len)) == NULL) { | |
4574 | SSLerr(SSL_F_NSS_KEYLOG_INT, ERR_R_MALLOC_FAILURE); | |
4575 | return 0; | |
4576 | } | |
4577 | ||
4578 | strcpy(cursor, prefix); | |
4579 | cursor += prefix_len; | |
4580 | *cursor++ = ' '; | |
4581 | ||
4582 | for (i = 0; i < parameter_1_len; i++) { | |
4583 | sprintf(cursor, "%02x", parameter_1[i]); | |
4584 | cursor += 2; | |
4585 | } | |
4586 | *cursor++ = ' '; | |
4587 | ||
4588 | for (i = 0; i < parameter_2_len; i++) { | |
4589 | sprintf(cursor, "%02x", parameter_2[i]); | |
4590 | cursor += 2; | |
4591 | } | |
4592 | *cursor = '\0'; | |
4593 | ||
4594 | ssl->ctx->keylog_callback(ssl, (const char *)out); | |
4595 | OPENSSL_free(out); | |
4596 | return 1; | |
4597 | ||
4598 | } | |
4599 | ||
4600 | int ssl_log_rsa_client_key_exchange(SSL *ssl, | |
4601 | const uint8_t *encrypted_premaster, | |
4602 | size_t encrypted_premaster_len, | |
4603 | const uint8_t *premaster, | |
4604 | size_t premaster_len) | |
4605 | { | |
4606 | if (encrypted_premaster_len < 8) { | |
4607 | SSLerr(SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR); | |
4608 | return 0; | |
4609 | } | |
4610 | ||
f0deb4d3 | 4611 | /* We only want the first 8 bytes of the encrypted premaster as a tag. */ |
2faa1b48 CB |
4612 | return nss_keylog_int("RSA", |
4613 | ssl, | |
4614 | encrypted_premaster, | |
f0deb4d3 | 4615 | 8, |
2faa1b48 CB |
4616 | premaster, |
4617 | premaster_len); | |
4618 | } | |
4619 | ||
2c7bd692 CB |
4620 | int ssl_log_secret(SSL *ssl, |
4621 | const char *label, | |
4622 | const uint8_t *secret, | |
4623 | size_t secret_len) | |
2faa1b48 | 4624 | { |
2c7bd692 | 4625 | return nss_keylog_int(label, |
2faa1b48 | 4626 | ssl, |
2c7bd692 CB |
4627 | ssl->s3->client_random, |
4628 | SSL3_RANDOM_SIZE, | |
4629 | secret, | |
4630 | secret_len); | |
2faa1b48 CB |
4631 | } |
4632 | ||
ccb8e6e0 BK |
4633 | #define SSLV2_CIPHER_LEN 3 |
4634 | ||
90134d98 BK |
4635 | int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites, int sslv2format, |
4636 | int *al) | |
ccb8e6e0 | 4637 | { |
ccb8e6e0 | 4638 | int n; |
ccb8e6e0 BK |
4639 | |
4640 | n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN; | |
4641 | ||
4642 | if (PACKET_remaining(cipher_suites) == 0) { | |
90134d98 | 4643 | SSLerr(SSL_F_SSL_CACHE_CIPHERLIST, SSL_R_NO_CIPHERS_SPECIFIED); |
ccb8e6e0 | 4644 | *al = SSL_AD_ILLEGAL_PARAMETER; |
90134d98 | 4645 | return 0; |
ccb8e6e0 BK |
4646 | } |
4647 | ||
4648 | if (PACKET_remaining(cipher_suites) % n != 0) { | |
90134d98 | 4649 | SSLerr(SSL_F_SSL_CACHE_CIPHERLIST, |
ccb8e6e0 BK |
4650 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); |
4651 | *al = SSL_AD_DECODE_ERROR; | |
90134d98 | 4652 | return 0; |
ccb8e6e0 BK |
4653 | } |
4654 | ||
4655 | OPENSSL_free(s->s3->tmp.ciphers_raw); | |
4656 | s->s3->tmp.ciphers_raw = NULL; | |
4657 | s->s3->tmp.ciphers_rawlen = 0; | |
4658 | ||
4659 | if (sslv2format) { | |
4660 | size_t numciphers = PACKET_remaining(cipher_suites) / n; | |
4661 | PACKET sslv2ciphers = *cipher_suites; | |
4662 | unsigned int leadbyte; | |
4663 | unsigned char *raw; | |
4664 | ||
4665 | /* | |
4666 | * We store the raw ciphers list in SSLv3+ format so we need to do some | |
4667 | * preprocessing to convert the list first. If there are any SSLv2 only | |
4668 | * ciphersuites with a non-zero leading byte then we are going to | |
4669 | * slightly over allocate because we won't store those. But that isn't a | |
4670 | * problem. | |
4671 | */ | |
4672 | raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN); | |
4673 | s->s3->tmp.ciphers_raw = raw; | |
4674 | if (raw == NULL) { | |
4675 | *al = SSL_AD_INTERNAL_ERROR; | |
4676 | goto err; | |
4677 | } | |
4678 | for (s->s3->tmp.ciphers_rawlen = 0; | |
4679 | PACKET_remaining(&sslv2ciphers) > 0; | |
4680 | raw += TLS_CIPHER_LEN) { | |
4681 | if (!PACKET_get_1(&sslv2ciphers, &leadbyte) | |
4682 | || (leadbyte == 0 | |
4683 | && !PACKET_copy_bytes(&sslv2ciphers, raw, | |
4684 | TLS_CIPHER_LEN)) | |
4685 | || (leadbyte != 0 | |
4686 | && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) { | |
4687 | *al = SSL_AD_INTERNAL_ERROR; | |
4688 | OPENSSL_free(s->s3->tmp.ciphers_raw); | |
4689 | s->s3->tmp.ciphers_raw = NULL; | |
4690 | s->s3->tmp.ciphers_rawlen = 0; | |
4691 | goto err; | |
4692 | } | |
4693 | if (leadbyte == 0) | |
4694 | s->s3->tmp.ciphers_rawlen += TLS_CIPHER_LEN; | |
4695 | } | |
4696 | } else if (!PACKET_memdup(cipher_suites, &s->s3->tmp.ciphers_raw, | |
4697 | &s->s3->tmp.ciphers_rawlen)) { | |
4698 | *al = SSL_AD_INTERNAL_ERROR; | |
4699 | goto err; | |
4700 | } | |
90134d98 BK |
4701 | return 1; |
4702 | err: | |
4703 | return 0; | |
4704 | } | |
4705 | ||
4706 | int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len, | |
4707 | int isv2format, STACK_OF(SSL_CIPHER) **sk, | |
4708 | STACK_OF(SSL_CIPHER) **scsvs) | |
4709 | { | |
4710 | int alert; | |
4711 | PACKET pkt; | |
4712 | ||
4713 | if (!PACKET_buf_init(&pkt, bytes, len)) | |
4714 | return 0; | |
4715 | return bytes_to_cipher_list(s, &pkt, sk, scsvs, isv2format, &alert); | |
4716 | } | |
4717 | ||
4718 | int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites, | |
4719 | STACK_OF(SSL_CIPHER) **skp, | |
4720 | STACK_OF(SSL_CIPHER) **scsvs_out, | |
4721 | int sslv2format, int *al) | |
4722 | { | |
4723 | const SSL_CIPHER *c; | |
4724 | STACK_OF(SSL_CIPHER) *sk = NULL; | |
4725 | STACK_OF(SSL_CIPHER) *scsvs = NULL; | |
4726 | int n; | |
4727 | /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */ | |
4728 | unsigned char cipher[SSLV2_CIPHER_LEN]; | |
4729 | ||
4730 | n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN; | |
4731 | ||
4732 | if (PACKET_remaining(cipher_suites) == 0) { | |
4733 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_NO_CIPHERS_SPECIFIED); | |
4734 | *al = SSL_AD_ILLEGAL_PARAMETER; | |
4735 | return 0; | |
4736 | } | |
4737 | ||
4738 | if (PACKET_remaining(cipher_suites) % n != 0) { | |
4739 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, | |
4740 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); | |
4741 | *al = SSL_AD_DECODE_ERROR; | |
4742 | return 0; | |
4743 | } | |
4744 | ||
4745 | sk = sk_SSL_CIPHER_new_null(); | |
4746 | scsvs = sk_SSL_CIPHER_new_null(); | |
4747 | if (sk == NULL || scsvs == NULL) { | |
4748 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
4749 | *al = SSL_AD_INTERNAL_ERROR; | |
4750 | goto err; | |
4751 | } | |
ccb8e6e0 BK |
4752 | |
4753 | while (PACKET_copy_bytes(cipher_suites, cipher, n)) { | |
4754 | /* | |
4755 | * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the | |
4756 | * first byte set to zero, while true SSLv2 ciphers have a non-zero | |
4757 | * first byte. We don't support any true SSLv2 ciphers, so skip them. | |
4758 | */ | |
4759 | if (sslv2format && cipher[0] != '\0') | |
4760 | continue; | |
4761 | ||
ccb8e6e0 BK |
4762 | /* For SSLv2-compat, ignore leading 0-byte. */ |
4763 | c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1); | |
4764 | if (c != NULL) { | |
90134d98 BK |
4765 | if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) || |
4766 | (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) { | |
ccb8e6e0 BK |
4767 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); |
4768 | *al = SSL_AD_INTERNAL_ERROR; | |
4769 | goto err; | |
4770 | } | |
4771 | } | |
4772 | } | |
4773 | if (PACKET_remaining(cipher_suites) > 0) { | |
4774 | *al = SSL_AD_INTERNAL_ERROR; | |
4775 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_INTERNAL_ERROR); | |
4776 | goto err; | |
4777 | } | |
4778 | ||
90134d98 BK |
4779 | if (skp != NULL) |
4780 | *skp = sk; | |
4781 | else | |
4782 | sk_SSL_CIPHER_free(sk); | |
4783 | if (scsvs_out != NULL) | |
4784 | *scsvs_out = scsvs; | |
4785 | else | |
4786 | sk_SSL_CIPHER_free(scsvs); | |
4787 | return 1; | |
ccb8e6e0 BK |
4788 | err: |
4789 | sk_SSL_CIPHER_free(sk); | |
90134d98 BK |
4790 | sk_SSL_CIPHER_free(scsvs); |
4791 | return 0; | |
ccb8e6e0 | 4792 | } |
3fc8d856 MC |
4793 | |
4794 | int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data) | |
4795 | { | |
4796 | ctx->max_early_data = max_early_data; | |
4797 | ||
4798 | return 1; | |
4799 | } | |
4800 | ||
46dcb945 | 4801 | uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx) |
3fc8d856 MC |
4802 | { |
4803 | return ctx->max_early_data; | |
4804 | } | |
4805 | ||
4806 | int SSL_set_max_early_data(SSL *s, uint32_t max_early_data) | |
4807 | { | |
4808 | s->max_early_data = max_early_data; | |
4809 | ||
4810 | return 1; | |
4811 | } | |
4812 | ||
a8e75d56 | 4813 | uint32_t SSL_get_max_early_data(const SSL *s) |
3fc8d856 MC |
4814 | { |
4815 | return s->max_early_data; | |
4816 | } |