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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 | ||
3eaa4170 MC |
108 | static int ssl_write_early_finish(SSL *s); |
109 | ||
919ba009 VD |
110 | static int dane_ctx_enable(struct dane_ctx_st *dctx) |
111 | { | |
112 | const EVP_MD **mdevp; | |
113 | uint8_t *mdord; | |
114 | uint8_t mdmax = DANETLS_MATCHING_LAST; | |
a230b26e | 115 | int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */ |
919ba009 VD |
116 | size_t i; |
117 | ||
5ae4ceb9 VD |
118 | if (dctx->mdevp != NULL) |
119 | return 1; | |
120 | ||
919ba009 VD |
121 | mdevp = OPENSSL_zalloc(n * sizeof(*mdevp)); |
122 | mdord = OPENSSL_zalloc(n * sizeof(*mdord)); | |
123 | ||
124 | if (mdord == NULL || mdevp == NULL) { | |
b3bd3d5a | 125 | OPENSSL_free(mdord); |
919ba009 VD |
126 | OPENSSL_free(mdevp); |
127 | SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE); | |
128 | return 0; | |
129 | } | |
130 | ||
131 | /* Install default entries */ | |
132 | for (i = 0; i < OSSL_NELEM(dane_mds); ++i) { | |
133 | const EVP_MD *md; | |
134 | ||
135 | if (dane_mds[i].nid == NID_undef || | |
136 | (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL) | |
137 | continue; | |
138 | mdevp[dane_mds[i].mtype] = md; | |
139 | mdord[dane_mds[i].mtype] = dane_mds[i].ord; | |
140 | } | |
141 | ||
142 | dctx->mdevp = mdevp; | |
143 | dctx->mdord = mdord; | |
144 | dctx->mdmax = mdmax; | |
145 | ||
146 | return 1; | |
147 | } | |
148 | ||
149 | static void dane_ctx_final(struct dane_ctx_st *dctx) | |
150 | { | |
151 | OPENSSL_free(dctx->mdevp); | |
152 | dctx->mdevp = NULL; | |
153 | ||
154 | OPENSSL_free(dctx->mdord); | |
155 | dctx->mdord = NULL; | |
156 | dctx->mdmax = 0; | |
157 | } | |
158 | ||
159 | static void tlsa_free(danetls_record *t) | |
160 | { | |
161 | if (t == NULL) | |
162 | return; | |
163 | OPENSSL_free(t->data); | |
164 | EVP_PKEY_free(t->spki); | |
165 | OPENSSL_free(t); | |
166 | } | |
167 | ||
b9aec69a | 168 | static void dane_final(SSL_DANE *dane) |
919ba009 VD |
169 | { |
170 | sk_danetls_record_pop_free(dane->trecs, tlsa_free); | |
171 | dane->trecs = NULL; | |
172 | ||
173 | sk_X509_pop_free(dane->certs, X509_free); | |
174 | dane->certs = NULL; | |
175 | ||
176 | X509_free(dane->mcert); | |
177 | dane->mcert = NULL; | |
178 | dane->mtlsa = NULL; | |
179 | dane->mdpth = -1; | |
180 | dane->pdpth = -1; | |
181 | } | |
182 | ||
183 | /* | |
184 | * dane_copy - Copy dane configuration, sans verification state. | |
185 | */ | |
186 | static int ssl_dane_dup(SSL *to, SSL *from) | |
187 | { | |
188 | int num; | |
189 | int i; | |
190 | ||
191 | if (!DANETLS_ENABLED(&from->dane)) | |
192 | return 1; | |
193 | ||
194 | dane_final(&to->dane); | |
5ae4ceb9 | 195 | to->dane.flags = from->dane.flags; |
9f6b22b8 VD |
196 | to->dane.dctx = &to->ctx->dane; |
197 | to->dane.trecs = sk_danetls_record_new_null(); | |
198 | ||
199 | if (to->dane.trecs == NULL) { | |
200 | SSLerr(SSL_F_SSL_DANE_DUP, ERR_R_MALLOC_FAILURE); | |
201 | return 0; | |
202 | } | |
919ba009 | 203 | |
a230b26e | 204 | num = sk_danetls_record_num(from->dane.trecs); |
919ba009 VD |
205 | for (i = 0; i < num; ++i) { |
206 | danetls_record *t = sk_danetls_record_value(from->dane.trecs, i); | |
9f6b22b8 | 207 | |
919ba009 VD |
208 | if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype, |
209 | t->data, t->dlen) <= 0) | |
210 | return 0; | |
211 | } | |
212 | return 1; | |
213 | } | |
214 | ||
a230b26e EK |
215 | static int dane_mtype_set(struct dane_ctx_st *dctx, |
216 | const EVP_MD *md, uint8_t mtype, uint8_t ord) | |
919ba009 VD |
217 | { |
218 | int i; | |
219 | ||
220 | if (mtype == DANETLS_MATCHING_FULL && md != NULL) { | |
a230b26e | 221 | SSLerr(SSL_F_DANE_MTYPE_SET, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL); |
919ba009 VD |
222 | return 0; |
223 | } | |
224 | ||
225 | if (mtype > dctx->mdmax) { | |
226 | const EVP_MD **mdevp; | |
227 | uint8_t *mdord; | |
a230b26e | 228 | int n = ((int)mtype) + 1; |
919ba009 VD |
229 | |
230 | mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp)); | |
231 | if (mdevp == NULL) { | |
232 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
233 | return -1; | |
234 | } | |
235 | dctx->mdevp = mdevp; | |
236 | ||
237 | mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord)); | |
238 | if (mdord == NULL) { | |
239 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
240 | return -1; | |
241 | } | |
242 | dctx->mdord = mdord; | |
243 | ||
244 | /* Zero-fill any gaps */ | |
a230b26e | 245 | for (i = dctx->mdmax + 1; i < mtype; ++i) { |
919ba009 VD |
246 | mdevp[i] = NULL; |
247 | mdord[i] = 0; | |
248 | } | |
249 | ||
250 | dctx->mdmax = mtype; | |
251 | } | |
252 | ||
253 | dctx->mdevp[mtype] = md; | |
254 | /* Coerce ordinal of disabled matching types to 0 */ | |
255 | dctx->mdord[mtype] = (md == NULL) ? 0 : ord; | |
256 | ||
257 | return 1; | |
258 | } | |
259 | ||
b9aec69a | 260 | static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype) |
919ba009 VD |
261 | { |
262 | if (mtype > dane->dctx->mdmax) | |
263 | return NULL; | |
264 | return dane->dctx->mdevp[mtype]; | |
265 | } | |
266 | ||
a230b26e EK |
267 | static int dane_tlsa_add(SSL_DANE *dane, |
268 | uint8_t usage, | |
269 | uint8_t selector, | |
270 | uint8_t mtype, unsigned char *data, size_t dlen) | |
919ba009 VD |
271 | { |
272 | danetls_record *t; | |
273 | const EVP_MD *md = NULL; | |
274 | int ilen = (int)dlen; | |
275 | int i; | |
9f6b22b8 | 276 | int num; |
919ba009 VD |
277 | |
278 | if (dane->trecs == NULL) { | |
279 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED); | |
280 | return -1; | |
281 | } | |
282 | ||
283 | if (ilen < 0 || dlen != (size_t)ilen) { | |
284 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH); | |
285 | return 0; | |
286 | } | |
287 | ||
288 | if (usage > DANETLS_USAGE_LAST) { | |
289 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE); | |
290 | return 0; | |
291 | } | |
292 | ||
293 | if (selector > DANETLS_SELECTOR_LAST) { | |
294 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR); | |
295 | return 0; | |
296 | } | |
297 | ||
298 | if (mtype != DANETLS_MATCHING_FULL) { | |
299 | md = tlsa_md_get(dane, mtype); | |
300 | if (md == NULL) { | |
301 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE); | |
302 | return 0; | |
303 | } | |
304 | } | |
305 | ||
306 | if (md != NULL && dlen != (size_t)EVP_MD_size(md)) { | |
307 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH); | |
308 | return 0; | |
309 | } | |
310 | if (!data) { | |
311 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA); | |
312 | return 0; | |
313 | } | |
314 | ||
315 | if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) { | |
316 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
317 | return -1; | |
318 | } | |
319 | ||
320 | t->usage = usage; | |
321 | t->selector = selector; | |
322 | t->mtype = mtype; | |
348240c6 | 323 | t->data = OPENSSL_malloc(dlen); |
919ba009 VD |
324 | if (t->data == NULL) { |
325 | tlsa_free(t); | |
326 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
327 | return -1; | |
328 | } | |
348240c6 MC |
329 | memcpy(t->data, data, dlen); |
330 | t->dlen = dlen; | |
919ba009 VD |
331 | |
332 | /* Validate and cache full certificate or public key */ | |
333 | if (mtype == DANETLS_MATCHING_FULL) { | |
334 | const unsigned char *p = data; | |
335 | X509 *cert = NULL; | |
336 | EVP_PKEY *pkey = NULL; | |
337 | ||
338 | switch (selector) { | |
339 | case DANETLS_SELECTOR_CERT: | |
348240c6 | 340 | if (!d2i_X509(&cert, &p, ilen) || p < data || |
919ba009 VD |
341 | dlen != (size_t)(p - data)) { |
342 | tlsa_free(t); | |
343 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
344 | return 0; | |
345 | } | |
346 | if (X509_get0_pubkey(cert) == NULL) { | |
347 | tlsa_free(t); | |
348 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
349 | return 0; | |
350 | } | |
351 | ||
352 | if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) { | |
353 | X509_free(cert); | |
354 | break; | |
355 | } | |
356 | ||
357 | /* | |
358 | * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA | |
359 | * records that contain full certificates of trust-anchors that are | |
360 | * not present in the wire chain. For usage PKIX-TA(0), we augment | |
361 | * the chain with untrusted Full(0) certificates from DNS, in case | |
362 | * they are missing from the chain. | |
363 | */ | |
364 | if ((dane->certs == NULL && | |
365 | (dane->certs = sk_X509_new_null()) == NULL) || | |
366 | !sk_X509_push(dane->certs, cert)) { | |
367 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
368 | X509_free(cert); | |
369 | tlsa_free(t); | |
370 | return -1; | |
371 | } | |
372 | break; | |
373 | ||
374 | case DANETLS_SELECTOR_SPKI: | |
348240c6 | 375 | if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data || |
919ba009 VD |
376 | dlen != (size_t)(p - data)) { |
377 | tlsa_free(t); | |
378 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY); | |
379 | return 0; | |
380 | } | |
381 | ||
382 | /* | |
383 | * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA | |
384 | * records that contain full bare keys of trust-anchors that are | |
385 | * not present in the wire chain. | |
386 | */ | |
387 | if (usage == DANETLS_USAGE_DANE_TA) | |
388 | t->spki = pkey; | |
389 | else | |
390 | EVP_PKEY_free(pkey); | |
391 | break; | |
392 | } | |
393 | } | |
394 | ||
395 | /*- | |
396 | * Find the right insertion point for the new record. | |
397 | * | |
398 | * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that | |
399 | * they can be processed first, as they require no chain building, and no | |
400 | * expiration or hostname checks. Because DANE-EE(3) is numerically | |
401 | * largest, this is accomplished via descending sort by "usage". | |
402 | * | |
403 | * We also sort in descending order by matching ordinal to simplify | |
404 | * the implementation of digest agility in the verification code. | |
405 | * | |
406 | * The choice of order for the selector is not significant, so we | |
407 | * use the same descending order for consistency. | |
408 | */ | |
9f6b22b8 VD |
409 | num = sk_danetls_record_num(dane->trecs); |
410 | for (i = 0; i < num; ++i) { | |
919ba009 | 411 | danetls_record *rec = sk_danetls_record_value(dane->trecs, i); |
9f6b22b8 | 412 | |
919ba009 VD |
413 | if (rec->usage > usage) |
414 | continue; | |
415 | if (rec->usage < usage) | |
416 | break; | |
417 | if (rec->selector > selector) | |
418 | continue; | |
419 | if (rec->selector < selector) | |
420 | break; | |
421 | if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype]) | |
422 | continue; | |
423 | break; | |
424 | } | |
425 | ||
426 | if (!sk_danetls_record_insert(dane->trecs, t, i)) { | |
427 | tlsa_free(t); | |
428 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
429 | return -1; | |
430 | } | |
431 | dane->umask |= DANETLS_USAGE_BIT(usage); | |
432 | ||
433 | return 1; | |
434 | } | |
435 | ||
d31fb0b5 RS |
436 | static void clear_ciphers(SSL *s) |
437 | { | |
438 | /* clear the current cipher */ | |
439 | ssl_clear_cipher_ctx(s); | |
440 | ssl_clear_hash_ctx(&s->read_hash); | |
441 | ssl_clear_hash_ctx(&s->write_hash); | |
442 | } | |
443 | ||
4f43d0e7 | 444 | int SSL_clear(SSL *s) |
0f113f3e | 445 | { |
0f113f3e MC |
446 | if (s->method == NULL) { |
447 | SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED); | |
448 | return (0); | |
449 | } | |
d02b48c6 | 450 | |
0f113f3e MC |
451 | if (ssl_clear_bad_session(s)) { |
452 | SSL_SESSION_free(s->session); | |
453 | s->session = NULL; | |
454 | } | |
d62bfb39 | 455 | |
0f113f3e MC |
456 | s->error = 0; |
457 | s->hit = 0; | |
458 | s->shutdown = 0; | |
d02b48c6 | 459 | |
0f113f3e MC |
460 | if (s->renegotiate) { |
461 | SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR); | |
462 | return 0; | |
463 | } | |
d02b48c6 | 464 | |
fe3a3291 | 465 | ossl_statem_clear(s); |
413c4f45 | 466 | |
0f113f3e MC |
467 | s->version = s->method->version; |
468 | s->client_version = s->version; | |
469 | s->rwstate = SSL_NOTHING; | |
d02b48c6 | 470 | |
25aaa98a RS |
471 | BUF_MEM_free(s->init_buf); |
472 | s->init_buf = NULL; | |
d31fb0b5 | 473 | clear_ciphers(s); |
0f113f3e | 474 | s->first_packet = 0; |
d02b48c6 | 475 | |
44c04a2e MC |
476 | s->key_update = SSL_KEY_UPDATE_NONE; |
477 | ||
919ba009 VD |
478 | /* Reset DANE verification result state */ |
479 | s->dane.mdpth = -1; | |
480 | s->dane.pdpth = -1; | |
481 | X509_free(s->dane.mcert); | |
482 | s->dane.mcert = NULL; | |
483 | s->dane.mtlsa = NULL; | |
484 | ||
485 | /* Clear the verification result peername */ | |
486 | X509_VERIFY_PARAM_move_peername(s->param, NULL); | |
487 | ||
0f113f3e MC |
488 | /* |
489 | * Check to see if we were changed into a different method, if so, revert | |
490 | * back if we are not doing session-id reuse. | |
491 | */ | |
024f543c | 492 | if (!ossl_statem_get_in_handshake(s) && (s->session == NULL) |
0f113f3e MC |
493 | && (s->method != s->ctx->method)) { |
494 | s->method->ssl_free(s); | |
495 | s->method = s->ctx->method; | |
496 | if (!s->method->ssl_new(s)) | |
497 | return (0); | |
498 | } else | |
0f113f3e | 499 | s->method->ssl_clear(s); |
33d23b87 | 500 | |
af9752e5 | 501 | RECORD_LAYER_clear(&s->rlayer); |
33d23b87 | 502 | |
0f113f3e MC |
503 | return (1); |
504 | } | |
d02b48c6 | 505 | |
4f43d0e7 | 506 | /** Used to change an SSL_CTXs default SSL method type */ |
0f113f3e MC |
507 | int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) |
508 | { | |
509 | STACK_OF(SSL_CIPHER) *sk; | |
510 | ||
511 | ctx->method = meth; | |
512 | ||
513 | sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list), | |
514 | &(ctx->cipher_list_by_id), | |
515 | SSL_DEFAULT_CIPHER_LIST, ctx->cert); | |
516 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { | |
a230b26e | 517 | SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); |
0f113f3e MC |
518 | return (0); |
519 | } | |
520 | return (1); | |
521 | } | |
d02b48c6 | 522 | |
4f43d0e7 | 523 | SSL *SSL_new(SSL_CTX *ctx) |
0f113f3e MC |
524 | { |
525 | SSL *s; | |
526 | ||
527 | if (ctx == NULL) { | |
528 | SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX); | |
529 | return (NULL); | |
530 | } | |
531 | if (ctx->method == NULL) { | |
532 | SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); | |
533 | return (NULL); | |
534 | } | |
535 | ||
b51bce94 | 536 | s = OPENSSL_zalloc(sizeof(*s)); |
0f113f3e MC |
537 | if (s == NULL) |
538 | goto err; | |
0f113f3e | 539 | |
16203f7b AG |
540 | s->lock = CRYPTO_THREAD_lock_new(); |
541 | if (s->lock == NULL) { | |
542 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); | |
543 | OPENSSL_free(s); | |
544 | return NULL; | |
545 | } | |
546 | ||
c036e210 | 547 | RECORD_LAYER_init(&s->rlayer, s); |
28d59af8 | 548 | |
0f113f3e | 549 | s->options = ctx->options; |
5ae4ceb9 | 550 | s->dane.flags = ctx->dane.flags; |
7946ab33 KR |
551 | s->min_proto_version = ctx->min_proto_version; |
552 | s->max_proto_version = ctx->max_proto_version; | |
0f113f3e MC |
553 | s->mode = ctx->mode; |
554 | s->max_cert_list = ctx->max_cert_list; | |
0e04674e | 555 | s->references = 1; |
3fc8d856 | 556 | s->max_early_data = ctx->max_early_data; |
0f113f3e | 557 | |
2c382349 KR |
558 | /* |
559 | * Earlier library versions used to copy the pointer to the CERT, not | |
560 | * its contents; only when setting new parameters for the per-SSL | |
561 | * copy, ssl_cert_new would be called (and the direct reference to | |
562 | * the per-SSL_CTX settings would be lost, but those still were | |
563 | * indirectly accessed for various purposes, and for that reason they | |
564 | * used to be known as s->ctx->default_cert). Now we don't look at the | |
565 | * SSL_CTX's CERT after having duplicated it once. | |
566 | */ | |
567 | s->cert = ssl_cert_dup(ctx->cert); | |
568 | if (s->cert == NULL) | |
569 | goto err; | |
0f113f3e | 570 | |
52e1d7b1 | 571 | RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead); |
0f113f3e MC |
572 | s->msg_callback = ctx->msg_callback; |
573 | s->msg_callback_arg = ctx->msg_callback_arg; | |
574 | s->verify_mode = ctx->verify_mode; | |
575 | s->not_resumable_session_cb = ctx->not_resumable_session_cb; | |
0f113f3e MC |
576 | s->sid_ctx_length = ctx->sid_ctx_length; |
577 | OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); | |
578 | memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); | |
579 | s->verify_callback = ctx->default_verify_callback; | |
580 | s->generate_session_id = ctx->generate_session_id; | |
581 | ||
582 | s->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 583 | if (s->param == NULL) |
0f113f3e MC |
584 | goto err; |
585 | X509_VERIFY_PARAM_inherit(s->param, ctx->param); | |
0f113f3e MC |
586 | s->quiet_shutdown = ctx->quiet_shutdown; |
587 | s->max_send_fragment = ctx->max_send_fragment; | |
d102d9df MC |
588 | s->split_send_fragment = ctx->split_send_fragment; |
589 | s->max_pipelines = ctx->max_pipelines; | |
94777c9c MC |
590 | if (s->max_pipelines > 1) |
591 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
dad78fb1 MC |
592 | if (ctx->default_read_buf_len > 0) |
593 | SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len); | |
bf21446a | 594 | |
16203f7b | 595 | SSL_CTX_up_ref(ctx); |
0f113f3e | 596 | s->ctx = ctx; |
aff8c126 RS |
597 | s->ext.debug_cb = 0; |
598 | s->ext.debug_arg = NULL; | |
599 | s->ext.ticket_expected = 0; | |
600 | s->ext.status_type = ctx->ext.status_type; | |
601 | s->ext.status_expected = 0; | |
602 | s->ext.ocsp.ids = NULL; | |
603 | s->ext.ocsp.exts = NULL; | |
604 | s->ext.ocsp.resp = NULL; | |
605 | s->ext.ocsp.resp_len = 0; | |
16203f7b | 606 | SSL_CTX_up_ref(ctx); |
222da979 | 607 | s->session_ctx = ctx; |
a230b26e | 608 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
609 | if (ctx->ext.ecpointformats) { |
610 | s->ext.ecpointformats = | |
611 | OPENSSL_memdup(ctx->ext.ecpointformats, | |
612 | ctx->ext.ecpointformats_len); | |
613 | if (!s->ext.ecpointformats) | |
0f113f3e | 614 | goto err; |
aff8c126 RS |
615 | s->ext.ecpointformats_len = |
616 | ctx->ext.ecpointformats_len; | |
617 | } | |
618 | if (ctx->ext.supportedgroups) { | |
619 | s->ext.supportedgroups = | |
620 | OPENSSL_memdup(ctx->ext.supportedgroups, | |
621 | ctx->ext.supportedgroups_len); | |
622 | if (!s->ext.supportedgroups) | |
0f113f3e | 623 | goto err; |
aff8c126 | 624 | s->ext.supportedgroups_len = ctx->ext.supportedgroups_len; |
0f113f3e | 625 | } |
a230b26e EK |
626 | #endif |
627 | #ifndef OPENSSL_NO_NEXTPROTONEG | |
aff8c126 | 628 | s->ext.npn = NULL; |
a230b26e | 629 | #endif |
6f017a8f | 630 | |
aff8c126 RS |
631 | if (s->ctx->ext.alpn) { |
632 | s->ext.alpn = OPENSSL_malloc(s->ctx->ext.alpn_len); | |
633 | if (s->ext.alpn == NULL) | |
0f113f3e | 634 | goto err; |
aff8c126 RS |
635 | memcpy(s->ext.alpn, s->ctx->ext.alpn, s->ctx->ext.alpn_len); |
636 | s->ext.alpn_len = s->ctx->ext.alpn_len; | |
0f113f3e | 637 | } |
d02b48c6 | 638 | |
696178ed | 639 | s->verified_chain = NULL; |
0f113f3e | 640 | s->verify_result = X509_V_OK; |
d02b48c6 | 641 | |
a974e64a MC |
642 | s->default_passwd_callback = ctx->default_passwd_callback; |
643 | s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata; | |
644 | ||
0f113f3e | 645 | s->method = ctx->method; |
d02b48c6 | 646 | |
44c04a2e MC |
647 | s->key_update = SSL_KEY_UPDATE_NONE; |
648 | ||
0f113f3e MC |
649 | if (!s->method->ssl_new(s)) |
650 | goto err; | |
d02b48c6 | 651 | |
0f113f3e | 652 | s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1; |
bf21446a | 653 | |
61986d32 | 654 | if (!SSL_clear(s)) |
69f68237 | 655 | goto err; |
58964a49 | 656 | |
25a807bc F |
657 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data)) |
658 | goto err; | |
58964a49 | 659 | |
ddac1974 | 660 | #ifndef OPENSSL_NO_PSK |
0f113f3e MC |
661 | s->psk_client_callback = ctx->psk_client_callback; |
662 | s->psk_server_callback = ctx->psk_server_callback; | |
ddac1974 NL |
663 | #endif |
664 | ||
07bbc92c MC |
665 | s->job = NULL; |
666 | ||
ed29e82a RP |
667 | #ifndef OPENSSL_NO_CT |
668 | if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback, | |
a230b26e | 669 | ctx->ct_validation_callback_arg)) |
ed29e82a RP |
670 | goto err; |
671 | #endif | |
672 | ||
16203f7b | 673 | return s; |
0f113f3e | 674 | err: |
62adbcee | 675 | SSL_free(s); |
0f113f3e | 676 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); |
16203f7b | 677 | return NULL; |
0f113f3e | 678 | } |
d02b48c6 | 679 | |
e417070c RS |
680 | int SSL_is_dtls(const SSL *s) |
681 | { | |
682 | return SSL_IS_DTLS(s) ? 1 : 0; | |
683 | } | |
684 | ||
c5ebfcab | 685 | int SSL_up_ref(SSL *s) |
a18a31e4 | 686 | { |
16203f7b | 687 | int i; |
c5ebfcab | 688 | |
2f545ae4 | 689 | if (CRYPTO_UP_REF(&s->references, &i, s->lock) <= 0) |
c5ebfcab F |
690 | return 0; |
691 | ||
692 | REF_PRINT_COUNT("SSL", s); | |
693 | REF_ASSERT_ISNT(i < 2); | |
694 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
695 | } |
696 | ||
0f113f3e MC |
697 | int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, |
698 | unsigned int sid_ctx_len) | |
699 | { | |
700 | if (sid_ctx_len > sizeof ctx->sid_ctx) { | |
701 | SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT, | |
702 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
703 | return 0; | |
704 | } | |
705 | ctx->sid_ctx_length = sid_ctx_len; | |
706 | memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); | |
4eb77b26 BM |
707 | |
708 | return 1; | |
0f113f3e | 709 | } |
4eb77b26 | 710 | |
0f113f3e MC |
711 | int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, |
712 | unsigned int sid_ctx_len) | |
713 | { | |
714 | if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { | |
715 | SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT, | |
716 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
717 | return 0; | |
718 | } | |
719 | ssl->sid_ctx_length = sid_ctx_len; | |
720 | memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); | |
b4cadc6e BL |
721 | |
722 | return 1; | |
0f113f3e | 723 | } |
b4cadc6e | 724 | |
dc644fe2 | 725 | int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) |
0f113f3e | 726 | { |
16203f7b | 727 | CRYPTO_THREAD_write_lock(ctx->lock); |
0f113f3e | 728 | ctx->generate_session_id = cb; |
16203f7b | 729 | CRYPTO_THREAD_unlock(ctx->lock); |
0f113f3e MC |
730 | return 1; |
731 | } | |
dc644fe2 GT |
732 | |
733 | int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) | |
0f113f3e | 734 | { |
16203f7b | 735 | CRYPTO_THREAD_write_lock(ssl->lock); |
0f113f3e | 736 | ssl->generate_session_id = cb; |
16203f7b | 737 | CRYPTO_THREAD_unlock(ssl->lock); |
0f113f3e MC |
738 | return 1; |
739 | } | |
dc644fe2 | 740 | |
f85c9904 | 741 | int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, |
0f113f3e MC |
742 | unsigned int id_len) |
743 | { | |
744 | /* | |
745 | * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how | |
746 | * we can "construct" a session to give us the desired check - ie. to | |
747 | * find if there's a session in the hash table that would conflict with | |
748 | * any new session built out of this id/id_len and the ssl_version in use | |
749 | * by this SSL. | |
750 | */ | |
751 | SSL_SESSION r, *p; | |
752 | ||
753 | if (id_len > sizeof r.session_id) | |
754 | return 0; | |
755 | ||
756 | r.ssl_version = ssl->version; | |
757 | r.session_id_length = id_len; | |
758 | memcpy(r.session_id, id, id_len); | |
759 | ||
e2bb9b9b TS |
760 | CRYPTO_THREAD_read_lock(ssl->session_ctx->lock); |
761 | p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r); | |
762 | CRYPTO_THREAD_unlock(ssl->session_ctx->lock); | |
0f113f3e MC |
763 | return (p != NULL); |
764 | } | |
dc644fe2 | 765 | |
bb7cd4e3 | 766 | int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) |
0f113f3e MC |
767 | { |
768 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
769 | } | |
bb7cd4e3 DSH |
770 | |
771 | int SSL_set_purpose(SSL *s, int purpose) | |
0f113f3e MC |
772 | { |
773 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
774 | } | |
926a56bf | 775 | |
bb7cd4e3 | 776 | int SSL_CTX_set_trust(SSL_CTX *s, int trust) |
0f113f3e MC |
777 | { |
778 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
779 | } | |
bb7cd4e3 DSH |
780 | |
781 | int SSL_set_trust(SSL *s, int trust) | |
0f113f3e MC |
782 | { |
783 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
784 | } | |
bb7cd4e3 | 785 | |
919ba009 VD |
786 | int SSL_set1_host(SSL *s, const char *hostname) |
787 | { | |
788 | return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); | |
789 | } | |
790 | ||
791 | int SSL_add1_host(SSL *s, const char *hostname) | |
792 | { | |
793 | return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0); | |
794 | } | |
795 | ||
796 | void SSL_set_hostflags(SSL *s, unsigned int flags) | |
797 | { | |
798 | X509_VERIFY_PARAM_set_hostflags(s->param, flags); | |
799 | } | |
800 | ||
4588cb44 | 801 | const char *SSL_get0_peername(SSL *s) |
919ba009 VD |
802 | { |
803 | return X509_VERIFY_PARAM_get0_peername(s->param); | |
804 | } | |
805 | ||
806 | int SSL_CTX_dane_enable(SSL_CTX *ctx) | |
807 | { | |
808 | return dane_ctx_enable(&ctx->dane); | |
809 | } | |
810 | ||
5ae4ceb9 VD |
811 | unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags) |
812 | { | |
813 | unsigned long orig = ctx->dane.flags; | |
814 | ||
815 | ctx->dane.flags |= flags; | |
816 | return orig; | |
817 | } | |
818 | ||
819 | unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags) | |
820 | { | |
821 | unsigned long orig = ctx->dane.flags; | |
822 | ||
823 | ctx->dane.flags &= ~flags; | |
824 | return orig; | |
825 | } | |
826 | ||
919ba009 VD |
827 | int SSL_dane_enable(SSL *s, const char *basedomain) |
828 | { | |
b9aec69a | 829 | SSL_DANE *dane = &s->dane; |
919ba009 VD |
830 | |
831 | if (s->ctx->dane.mdmax == 0) { | |
832 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED); | |
833 | return 0; | |
834 | } | |
835 | if (dane->trecs != NULL) { | |
836 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED); | |
837 | return 0; | |
838 | } | |
839 | ||
8d887efa VD |
840 | /* |
841 | * Default SNI name. This rejects empty names, while set1_host below | |
842 | * accepts them and disables host name checks. To avoid side-effects with | |
843 | * invalid input, set the SNI name first. | |
844 | */ | |
aff8c126 | 845 | if (s->ext.hostname == NULL) { |
dccd20d1 | 846 | if (!SSL_set_tlsext_host_name(s, basedomain)) { |
8d887efa | 847 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); |
dccd20d1 | 848 | return -1; |
8d887efa VD |
849 | } |
850 | } | |
851 | ||
919ba009 VD |
852 | /* Primary RFC6125 reference identifier */ |
853 | if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) { | |
854 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); | |
855 | return -1; | |
856 | } | |
857 | ||
919ba009 VD |
858 | dane->mdpth = -1; |
859 | dane->pdpth = -1; | |
860 | dane->dctx = &s->ctx->dane; | |
861 | dane->trecs = sk_danetls_record_new_null(); | |
862 | ||
863 | if (dane->trecs == NULL) { | |
864 | SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE); | |
865 | return -1; | |
866 | } | |
867 | return 1; | |
868 | } | |
869 | ||
5ae4ceb9 VD |
870 | unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags) |
871 | { | |
872 | unsigned long orig = ssl->dane.flags; | |
873 | ||
874 | ssl->dane.flags |= flags; | |
875 | return orig; | |
876 | } | |
877 | ||
878 | unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags) | |
879 | { | |
880 | unsigned long orig = ssl->dane.flags; | |
881 | ||
882 | ssl->dane.flags &= ~flags; | |
883 | return orig; | |
884 | } | |
885 | ||
919ba009 VD |
886 | int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki) |
887 | { | |
b9aec69a | 888 | SSL_DANE *dane = &s->dane; |
919ba009 | 889 | |
c0a445a9 | 890 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
891 | return -1; |
892 | if (dane->mtlsa) { | |
893 | if (mcert) | |
894 | *mcert = dane->mcert; | |
895 | if (mspki) | |
896 | *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL; | |
897 | } | |
898 | return dane->mdpth; | |
899 | } | |
900 | ||
901 | int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector, | |
902 | uint8_t *mtype, unsigned const char **data, size_t *dlen) | |
903 | { | |
b9aec69a | 904 | SSL_DANE *dane = &s->dane; |
919ba009 | 905 | |
c0a445a9 | 906 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
907 | return -1; |
908 | if (dane->mtlsa) { | |
909 | if (usage) | |
910 | *usage = dane->mtlsa->usage; | |
911 | if (selector) | |
912 | *selector = dane->mtlsa->selector; | |
913 | if (mtype) | |
914 | *mtype = dane->mtlsa->mtype; | |
915 | if (data) | |
916 | *data = dane->mtlsa->data; | |
917 | if (dlen) | |
918 | *dlen = dane->mtlsa->dlen; | |
919 | } | |
920 | return dane->mdpth; | |
921 | } | |
922 | ||
b9aec69a | 923 | SSL_DANE *SSL_get0_dane(SSL *s) |
919ba009 VD |
924 | { |
925 | return &s->dane; | |
926 | } | |
927 | ||
928 | int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector, | |
929 | uint8_t mtype, unsigned char *data, size_t dlen) | |
930 | { | |
931 | return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen); | |
932 | } | |
933 | ||
a230b26e EK |
934 | int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype, |
935 | uint8_t ord) | |
919ba009 VD |
936 | { |
937 | return dane_mtype_set(&ctx->dane, md, mtype, ord); | |
938 | } | |
939 | ||
ccf11751 | 940 | int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) |
0f113f3e MC |
941 | { |
942 | return X509_VERIFY_PARAM_set1(ctx->param, vpm); | |
943 | } | |
ccf11751 DSH |
944 | |
945 | int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) | |
0f113f3e MC |
946 | { |
947 | return X509_VERIFY_PARAM_set1(ssl->param, vpm); | |
948 | } | |
ccf11751 | 949 | |
7af31968 | 950 | X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx) |
0f113f3e MC |
951 | { |
952 | return ctx->param; | |
953 | } | |
7af31968 DSH |
954 | |
955 | X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl) | |
0f113f3e MC |
956 | { |
957 | return ssl->param; | |
958 | } | |
7af31968 | 959 | |
a5ee80b9 | 960 | void SSL_certs_clear(SSL *s) |
0f113f3e MC |
961 | { |
962 | ssl_cert_clear_certs(s->cert); | |
963 | } | |
a5ee80b9 | 964 | |
4f43d0e7 | 965 | void SSL_free(SSL *s) |
0f113f3e MC |
966 | { |
967 | int i; | |
58964a49 | 968 | |
0f113f3e MC |
969 | if (s == NULL) |
970 | return; | |
e03ddfae | 971 | |
2f545ae4 | 972 | CRYPTO_DOWN_REF(&s->references, &i, s->lock); |
f3f1cf84 | 973 | REF_PRINT_COUNT("SSL", s); |
0f113f3e MC |
974 | if (i > 0) |
975 | return; | |
f3f1cf84 | 976 | REF_ASSERT_ISNT(i < 0); |
d02b48c6 | 977 | |
222561fe | 978 | X509_VERIFY_PARAM_free(s->param); |
919ba009 | 979 | dane_final(&s->dane); |
0f113f3e MC |
980 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); |
981 | ||
2e7dc7cd MC |
982 | ssl_free_wbio_buffer(s); |
983 | ||
65e2d672 | 984 | BIO_free_all(s->wbio); |
325cfa85 | 985 | BIO_free_all(s->rbio); |
0f113f3e | 986 | |
25aaa98a | 987 | BUF_MEM_free(s->init_buf); |
0f113f3e MC |
988 | |
989 | /* add extra stuff */ | |
25aaa98a RS |
990 | sk_SSL_CIPHER_free(s->cipher_list); |
991 | sk_SSL_CIPHER_free(s->cipher_list_by_id); | |
0f113f3e MC |
992 | |
993 | /* Make the next call work :-) */ | |
994 | if (s->session != NULL) { | |
995 | ssl_clear_bad_session(s); | |
996 | SSL_SESSION_free(s->session); | |
997 | } | |
998 | ||
d31fb0b5 | 999 | clear_ciphers(s); |
d02b48c6 | 1000 | |
e0e920b1 | 1001 | ssl_cert_free(s->cert); |
0f113f3e | 1002 | /* Free up if allocated */ |
d02b48c6 | 1003 | |
aff8c126 | 1004 | OPENSSL_free(s->ext.hostname); |
222da979 | 1005 | SSL_CTX_free(s->session_ctx); |
e481f9b9 | 1006 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
1007 | OPENSSL_free(s->ext.ecpointformats); |
1008 | OPENSSL_free(s->ext.supportedgroups); | |
a230b26e | 1009 | #endif /* OPENSSL_NO_EC */ |
aff8c126 | 1010 | sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free); |
3e41ac35 | 1011 | #ifndef OPENSSL_NO_OCSP |
aff8c126 | 1012 | sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free); |
3e41ac35 | 1013 | #endif |
ed29e82a RP |
1014 | #ifndef OPENSSL_NO_CT |
1015 | SCT_LIST_free(s->scts); | |
aff8c126 | 1016 | OPENSSL_free(s->ext.scts); |
ed29e82a | 1017 | #endif |
aff8c126 RS |
1018 | OPENSSL_free(s->ext.ocsp.resp); |
1019 | OPENSSL_free(s->ext.alpn); | |
cfef5027 | 1020 | OPENSSL_free(s->ext.tls13_cookie); |
6b1bb98f | 1021 | OPENSSL_free(s->clienthello); |
0f113f3e | 1022 | |
222561fe | 1023 | sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free); |
0f113f3e | 1024 | |
696178ed DSH |
1025 | sk_X509_pop_free(s->verified_chain, X509_free); |
1026 | ||
0f113f3e MC |
1027 | if (s->method != NULL) |
1028 | s->method->ssl_free(s); | |
1029 | ||
f161995e | 1030 | RECORD_LAYER_release(&s->rlayer); |
33d23b87 | 1031 | |
e0e920b1 | 1032 | SSL_CTX_free(s->ctx); |
7c3908dd | 1033 | |
ff75a257 MC |
1034 | ASYNC_WAIT_CTX_free(s->waitctx); |
1035 | ||
e481f9b9 | 1036 | #if !defined(OPENSSL_NO_NEXTPROTONEG) |
aff8c126 | 1037 | OPENSSL_free(s->ext.npn); |
ee2ffc27 BL |
1038 | #endif |
1039 | ||
e783bae2 | 1040 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 1041 | sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); |
0f113f3e MC |
1042 | #endif |
1043 | ||
16203f7b AG |
1044 | CRYPTO_THREAD_lock_free(s->lock); |
1045 | ||
0f113f3e MC |
1046 | OPENSSL_free(s); |
1047 | } | |
1048 | ||
65e2d672 | 1049 | void SSL_set0_rbio(SSL *s, BIO *rbio) |
3ffbe008 | 1050 | { |
65e2d672 | 1051 | BIO_free_all(s->rbio); |
3ffbe008 MC |
1052 | s->rbio = rbio; |
1053 | } | |
1054 | ||
65e2d672 | 1055 | void SSL_set0_wbio(SSL *s, BIO *wbio) |
0f113f3e MC |
1056 | { |
1057 | /* | |
1058 | * If the output buffering BIO is still in place, remove it | |
1059 | */ | |
2e7dc7cd MC |
1060 | if (s->bbio != NULL) |
1061 | s->wbio = BIO_pop(s->wbio); | |
1062 | ||
65e2d672 | 1063 | BIO_free_all(s->wbio); |
0f113f3e | 1064 | s->wbio = wbio; |
2e7dc7cd MC |
1065 | |
1066 | /* Re-attach |bbio| to the new |wbio|. */ | |
1067 | if (s->bbio != NULL) | |
1068 | s->wbio = BIO_push(s->bbio, s->wbio); | |
0f113f3e | 1069 | } |
d02b48c6 | 1070 | |
3ffbe008 MC |
1071 | void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) |
1072 | { | |
65e2d672 MC |
1073 | /* |
1074 | * For historical reasons, this function has many different cases in | |
1075 | * ownership handling. | |
1076 | */ | |
1077 | ||
1078 | /* If nothing has changed, do nothing */ | |
1079 | if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s)) | |
1080 | return; | |
1081 | ||
1082 | /* | |
1083 | * If the two arguments are equal then one fewer reference is granted by the | |
1084 | * caller than we want to take | |
1085 | */ | |
1086 | if (rbio != NULL && rbio == wbio) | |
1087 | BIO_up_ref(rbio); | |
1088 | ||
1089 | /* | |
1090 | * If only the wbio is changed only adopt one reference. | |
1091 | */ | |
1092 | if (rbio == SSL_get_rbio(s)) { | |
1093 | SSL_set0_wbio(s, wbio); | |
1094 | return; | |
1095 | } | |
1096 | /* | |
1097 | * There is an asymmetry here for historical reasons. If only the rbio is | |
1098 | * changed AND the rbio and wbio were originally different, then we only | |
1099 | * adopt one reference. | |
1100 | */ | |
1101 | if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) { | |
1102 | SSL_set0_rbio(s, rbio); | |
1103 | return; | |
1104 | } | |
1105 | ||
1106 | /* Otherwise, adopt both references. */ | |
1107 | SSL_set0_rbio(s, rbio); | |
1108 | SSL_set0_wbio(s, wbio); | |
3ffbe008 MC |
1109 | } |
1110 | ||
0821bcd4 | 1111 | BIO *SSL_get_rbio(const SSL *s) |
0f113f3e | 1112 | { |
2e7dc7cd | 1113 | return s->rbio; |
0f113f3e | 1114 | } |
d02b48c6 | 1115 | |
0821bcd4 | 1116 | BIO *SSL_get_wbio(const SSL *s) |
0f113f3e | 1117 | { |
2e7dc7cd MC |
1118 | if (s->bbio != NULL) { |
1119 | /* | |
1120 | * If |bbio| is active, the true caller-configured BIO is its | |
1121 | * |next_bio|. | |
1122 | */ | |
1123 | return BIO_next(s->bbio); | |
1124 | } | |
1125 | return s->wbio; | |
0f113f3e | 1126 | } |
d02b48c6 | 1127 | |
0821bcd4 | 1128 | int SSL_get_fd(const SSL *s) |
0f113f3e | 1129 | { |
2e7dc7cd | 1130 | return SSL_get_rfd(s); |
0f113f3e | 1131 | } |
24cbf3ef | 1132 | |
0821bcd4 | 1133 | int SSL_get_rfd(const SSL *s) |
0f113f3e MC |
1134 | { |
1135 | int ret = -1; | |
1136 | BIO *b, *r; | |
1137 | ||
1138 | b = SSL_get_rbio(s); | |
1139 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1140 | if (r != NULL) | |
1141 | BIO_get_fd(r, &ret); | |
1142 | return (ret); | |
1143 | } | |
d02b48c6 | 1144 | |
0821bcd4 | 1145 | int SSL_get_wfd(const SSL *s) |
0f113f3e MC |
1146 | { |
1147 | int ret = -1; | |
1148 | BIO *b, *r; | |
1149 | ||
1150 | b = SSL_get_wbio(s); | |
1151 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1152 | if (r != NULL) | |
1153 | BIO_get_fd(r, &ret); | |
1154 | return (ret); | |
1155 | } | |
24cbf3ef | 1156 | |
bc36ee62 | 1157 | #ifndef OPENSSL_NO_SOCK |
0f113f3e MC |
1158 | int SSL_set_fd(SSL *s, int fd) |
1159 | { | |
1160 | int ret = 0; | |
1161 | BIO *bio = NULL; | |
1162 | ||
1163 | bio = BIO_new(BIO_s_socket()); | |
1164 | ||
1165 | if (bio == NULL) { | |
1166 | SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB); | |
1167 | goto err; | |
1168 | } | |
1169 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
1170 | SSL_set_bio(s, bio, bio); | |
1171 | ret = 1; | |
1172 | err: | |
1173 | return (ret); | |
1174 | } | |
d02b48c6 | 1175 | |
0f113f3e MC |
1176 | int SSL_set_wfd(SSL *s, int fd) |
1177 | { | |
2e7dc7cd | 1178 | BIO *rbio = SSL_get_rbio(s); |
0f113f3e | 1179 | |
2e7dc7cd MC |
1180 | if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET |
1181 | || (int)BIO_get_fd(rbio, NULL) != fd) { | |
1182 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1183 | |
1184 | if (bio == NULL) { | |
1185 | SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1186 | return 0; |
0f113f3e MC |
1187 | } |
1188 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
65e2d672 | 1189 | SSL_set0_wbio(s, bio); |
2e7dc7cd | 1190 | } else { |
65e2d672 MC |
1191 | BIO_up_ref(rbio); |
1192 | SSL_set0_wbio(s, rbio); | |
2e7dc7cd MC |
1193 | } |
1194 | return 1; | |
0f113f3e MC |
1195 | } |
1196 | ||
1197 | int SSL_set_rfd(SSL *s, int fd) | |
1198 | { | |
2e7dc7cd | 1199 | BIO *wbio = SSL_get_wbio(s); |
0f113f3e | 1200 | |
2e7dc7cd MC |
1201 | if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET |
1202 | || ((int)BIO_get_fd(wbio, NULL) != fd)) { | |
1203 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1204 | |
1205 | if (bio == NULL) { | |
1206 | SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1207 | return 0; |
0f113f3e MC |
1208 | } |
1209 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
65e2d672 | 1210 | SSL_set0_rbio(s, bio); |
2e7dc7cd | 1211 | } else { |
65e2d672 MC |
1212 | BIO_up_ref(wbio); |
1213 | SSL_set0_rbio(s, wbio); | |
2e7dc7cd MC |
1214 | } |
1215 | ||
1216 | return 1; | |
0f113f3e MC |
1217 | } |
1218 | #endif | |
ca03109c BM |
1219 | |
1220 | /* return length of latest Finished message we sent, copy to 'buf' */ | |
0821bcd4 | 1221 | size_t SSL_get_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1222 | { |
1223 | size_t ret = 0; | |
1224 | ||
1225 | if (s->s3 != NULL) { | |
1226 | ret = s->s3->tmp.finish_md_len; | |
1227 | if (count > ret) | |
1228 | count = ret; | |
1229 | memcpy(buf, s->s3->tmp.finish_md, count); | |
1230 | } | |
1231 | return ret; | |
1232 | } | |
ca03109c BM |
1233 | |
1234 | /* return length of latest Finished message we expected, copy to 'buf' */ | |
0821bcd4 | 1235 | size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1236 | { |
1237 | size_t ret = 0; | |
ca03109c | 1238 | |
0f113f3e MC |
1239 | if (s->s3 != NULL) { |
1240 | ret = s->s3->tmp.peer_finish_md_len; | |
1241 | if (count > ret) | |
1242 | count = ret; | |
1243 | memcpy(buf, s->s3->tmp.peer_finish_md, count); | |
1244 | } | |
1245 | return ret; | |
1246 | } | |
ca03109c | 1247 | |
0821bcd4 | 1248 | int SSL_get_verify_mode(const SSL *s) |
0f113f3e MC |
1249 | { |
1250 | return (s->verify_mode); | |
1251 | } | |
d02b48c6 | 1252 | |
0821bcd4 | 1253 | int SSL_get_verify_depth(const SSL *s) |
0f113f3e MC |
1254 | { |
1255 | return X509_VERIFY_PARAM_get_depth(s->param); | |
1256 | } | |
7f89714e | 1257 | |
0f113f3e MC |
1258 | int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) { |
1259 | return (s->verify_callback); | |
1260 | } | |
d02b48c6 | 1261 | |
0821bcd4 | 1262 | int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) |
0f113f3e MC |
1263 | { |
1264 | return (ctx->verify_mode); | |
1265 | } | |
d02b48c6 | 1266 | |
0821bcd4 | 1267 | int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) |
0f113f3e MC |
1268 | { |
1269 | return X509_VERIFY_PARAM_get_depth(ctx->param); | |
1270 | } | |
1271 | ||
1272 | int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) { | |
1273 | return (ctx->default_verify_callback); | |
1274 | } | |
1275 | ||
1276 | void SSL_set_verify(SSL *s, int mode, | |
1277 | int (*callback) (int ok, X509_STORE_CTX *ctx)) | |
1278 | { | |
1279 | s->verify_mode = mode; | |
1280 | if (callback != NULL) | |
1281 | s->verify_callback = callback; | |
1282 | } | |
1283 | ||
1284 | void SSL_set_verify_depth(SSL *s, int depth) | |
1285 | { | |
1286 | X509_VERIFY_PARAM_set_depth(s->param, depth); | |
1287 | } | |
1288 | ||
1289 | void SSL_set_read_ahead(SSL *s, int yes) | |
1290 | { | |
52e1d7b1 | 1291 | RECORD_LAYER_set_read_ahead(&s->rlayer, yes); |
0f113f3e | 1292 | } |
d02b48c6 | 1293 | |
0821bcd4 | 1294 | int SSL_get_read_ahead(const SSL *s) |
0f113f3e | 1295 | { |
52e1d7b1 | 1296 | return RECORD_LAYER_get_read_ahead(&s->rlayer); |
0f113f3e | 1297 | } |
d02b48c6 | 1298 | |
0821bcd4 | 1299 | int SSL_pending(const SSL *s) |
0f113f3e | 1300 | { |
8b0e934a MC |
1301 | size_t pending = s->method->ssl_pending(s); |
1302 | ||
0f113f3e MC |
1303 | /* |
1304 | * SSL_pending cannot work properly if read-ahead is enabled | |
1305 | * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is | |
1306 | * impossible to fix since SSL_pending cannot report errors that may be | |
1307 | * observed while scanning the new data. (Note that SSL_pending() is | |
1308 | * often used as a boolean value, so we'd better not return -1.) | |
8b0e934a MC |
1309 | * |
1310 | * SSL_pending also cannot work properly if the value >INT_MAX. In that case | |
1311 | * we just return INT_MAX. | |
0f113f3e | 1312 | */ |
348240c6 | 1313 | return pending < INT_MAX ? (int)pending : INT_MAX; |
0f113f3e | 1314 | } |
d02b48c6 | 1315 | |
49580f25 MC |
1316 | int SSL_has_pending(const SSL *s) |
1317 | { | |
1318 | /* | |
1319 | * Similar to SSL_pending() but returns a 1 to indicate that we have | |
1320 | * unprocessed data available or 0 otherwise (as opposed to the number of | |
1321 | * bytes available). Unlike SSL_pending() this will take into account | |
1322 | * read_ahead data. A 1 return simply indicates that we have unprocessed | |
1323 | * data. That data may not result in any application data, or we may fail | |
1324 | * to parse the records for some reason. | |
1325 | */ | |
b8c49611 | 1326 | if (RECORD_LAYER_processed_read_pending(&s->rlayer)) |
49580f25 MC |
1327 | return 1; |
1328 | ||
1329 | return RECORD_LAYER_read_pending(&s->rlayer); | |
1330 | } | |
1331 | ||
0821bcd4 | 1332 | X509 *SSL_get_peer_certificate(const SSL *s) |
0f113f3e MC |
1333 | { |
1334 | X509 *r; | |
d02b48c6 | 1335 | |
0f113f3e MC |
1336 | if ((s == NULL) || (s->session == NULL)) |
1337 | r = NULL; | |
1338 | else | |
1339 | r = s->session->peer; | |
d02b48c6 | 1340 | |
0f113f3e MC |
1341 | if (r == NULL) |
1342 | return (r); | |
d02b48c6 | 1343 | |
05f0fb9f | 1344 | X509_up_ref(r); |
0f113f3e MC |
1345 | |
1346 | return (r); | |
1347 | } | |
d02b48c6 | 1348 | |
0821bcd4 | 1349 | STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) |
0f113f3e MC |
1350 | { |
1351 | STACK_OF(X509) *r; | |
1352 | ||
c34b0f99 | 1353 | if ((s == NULL) || (s->session == NULL)) |
0f113f3e MC |
1354 | r = NULL; |
1355 | else | |
c34b0f99 | 1356 | r = s->session->peer_chain; |
0f113f3e MC |
1357 | |
1358 | /* | |
1359 | * If we are a client, cert_chain includes the peer's own certificate; if | |
1360 | * we are a server, it does not. | |
1361 | */ | |
1362 | ||
1363 | return (r); | |
1364 | } | |
1365 | ||
1366 | /* | |
1367 | * Now in theory, since the calling process own 't' it should be safe to | |
1368 | * modify. We need to be able to read f without being hassled | |
1369 | */ | |
17dd65e6 | 1370 | int SSL_copy_session_id(SSL *t, const SSL *f) |
0f113f3e | 1371 | { |
16203f7b | 1372 | int i; |
0f113f3e | 1373 | /* Do we need to to SSL locking? */ |
61986d32 | 1374 | if (!SSL_set_session(t, SSL_get_session(f))) { |
17dd65e6 | 1375 | return 0; |
69f68237 | 1376 | } |
0f113f3e MC |
1377 | |
1378 | /* | |
87d9cafa | 1379 | * what if we are setup for one protocol version but want to talk another |
0f113f3e MC |
1380 | */ |
1381 | if (t->method != f->method) { | |
919ba009 VD |
1382 | t->method->ssl_free(t); |
1383 | t->method = f->method; | |
1384 | if (t->method->ssl_new(t) == 0) | |
1385 | return 0; | |
0f113f3e MC |
1386 | } |
1387 | ||
2f545ae4 | 1388 | CRYPTO_UP_REF(&f->cert->references, &i, f->cert->lock); |
24a0d393 KR |
1389 | ssl_cert_free(t->cert); |
1390 | t->cert = f->cert; | |
348240c6 | 1391 | if (!SSL_set_session_id_context(t, f->sid_ctx, (int)f->sid_ctx_length)) { |
17dd65e6 | 1392 | return 0; |
69f68237 | 1393 | } |
17dd65e6 MC |
1394 | |
1395 | return 1; | |
0f113f3e | 1396 | } |
d02b48c6 | 1397 | |
58964a49 | 1398 | /* Fix this so it checks all the valid key/cert options */ |
0821bcd4 | 1399 | int SSL_CTX_check_private_key(const SSL_CTX *ctx) |
0f113f3e | 1400 | { |
a230b26e EK |
1401 | if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) { |
1402 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
0f113f3e MC |
1403 | return (0); |
1404 | } | |
1405 | if (ctx->cert->key->privatekey == NULL) { | |
a230b26e | 1406 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); |
0f113f3e MC |
1407 | return (0); |
1408 | } | |
1409 | return (X509_check_private_key | |
1410 | (ctx->cert->key->x509, ctx->cert->key->privatekey)); | |
1411 | } | |
d02b48c6 | 1412 | |
58964a49 | 1413 | /* Fix this function so that it takes an optional type parameter */ |
0821bcd4 | 1414 | int SSL_check_private_key(const SSL *ssl) |
0f113f3e MC |
1415 | { |
1416 | if (ssl == NULL) { | |
1417 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER); | |
1418 | return (0); | |
1419 | } | |
0f113f3e MC |
1420 | if (ssl->cert->key->x509 == NULL) { |
1421 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
1422 | return (0); | |
1423 | } | |
1424 | if (ssl->cert->key->privatekey == NULL) { | |
1425 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); | |
1426 | return (0); | |
1427 | } | |
1428 | return (X509_check_private_key(ssl->cert->key->x509, | |
1429 | ssl->cert->key->privatekey)); | |
1430 | } | |
d02b48c6 | 1431 | |
07bbc92c MC |
1432 | int SSL_waiting_for_async(SSL *s) |
1433 | { | |
e8aa8b6c | 1434 | if (s->job) |
82676094 MC |
1435 | return 1; |
1436 | ||
07bbc92c MC |
1437 | return 0; |
1438 | } | |
1439 | ||
ff75a257 | 1440 | int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds) |
f4da39d2 | 1441 | { |
ff75a257 MC |
1442 | ASYNC_WAIT_CTX *ctx = s->waitctx; |
1443 | ||
1444 | if (ctx == NULL) | |
1445 | return 0; | |
1446 | return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds); | |
1447 | } | |
f4da39d2 | 1448 | |
ff75a257 MC |
1449 | int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds, |
1450 | OSSL_ASYNC_FD *delfd, size_t *numdelfds) | |
1451 | { | |
1452 | ASYNC_WAIT_CTX *ctx = s->waitctx; | |
1453 | ||
1454 | if (ctx == NULL) | |
1455 | return 0; | |
1456 | return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd, | |
1457 | numdelfds); | |
f4da39d2 MC |
1458 | } |
1459 | ||
4f43d0e7 | 1460 | int SSL_accept(SSL *s) |
0f113f3e | 1461 | { |
c4c32155 | 1462 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1463 | /* Not properly initialized yet */ |
1464 | SSL_set_accept_state(s); | |
07bbc92c | 1465 | } |
add2f5ca MC |
1466 | |
1467 | return SSL_do_handshake(s); | |
0f113f3e | 1468 | } |
d02b48c6 | 1469 | |
4f43d0e7 | 1470 | int SSL_connect(SSL *s) |
0f113f3e | 1471 | { |
c4c32155 | 1472 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1473 | /* Not properly initialized yet */ |
1474 | SSL_set_connect_state(s); | |
add2f5ca | 1475 | } |
b31b04d9 | 1476 | |
add2f5ca | 1477 | return SSL_do_handshake(s); |
0f113f3e | 1478 | } |
d02b48c6 | 1479 | |
0821bcd4 | 1480 | long SSL_get_default_timeout(const SSL *s) |
0f113f3e MC |
1481 | { |
1482 | return (s->method->get_timeout()); | |
1483 | } | |
1484 | ||
7fecbf6f | 1485 | static int ssl_start_async_job(SSL *s, struct ssl_async_args *args, |
a230b26e EK |
1486 | int (*func) (void *)) |
1487 | { | |
add2f5ca | 1488 | int ret; |
ff75a257 MC |
1489 | if (s->waitctx == NULL) { |
1490 | s->waitctx = ASYNC_WAIT_CTX_new(); | |
1491 | if (s->waitctx == NULL) | |
1492 | return -1; | |
1493 | } | |
e8aa8b6c | 1494 | switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args, |
a230b26e | 1495 | sizeof(struct ssl_async_args))) { |
add2f5ca MC |
1496 | case ASYNC_ERR: |
1497 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1498 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC); |
add2f5ca MC |
1499 | return -1; |
1500 | case ASYNC_PAUSE: | |
1501 | s->rwstate = SSL_ASYNC_PAUSED; | |
1502 | return -1; | |
fc7f190c MC |
1503 | case ASYNC_NO_JOBS: |
1504 | s->rwstate = SSL_ASYNC_NO_JOBS; | |
1505 | return -1; | |
add2f5ca MC |
1506 | case ASYNC_FINISH: |
1507 | s->job = NULL; | |
1508 | return ret; | |
1509 | default: | |
1510 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1511 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR); |
add2f5ca MC |
1512 | /* Shouldn't happen */ |
1513 | return -1; | |
1514 | } | |
1515 | } | |
07bbc92c | 1516 | |
add2f5ca | 1517 | static int ssl_io_intern(void *vargs) |
07bbc92c MC |
1518 | { |
1519 | struct ssl_async_args *args; | |
1520 | SSL *s; | |
1521 | void *buf; | |
348240c6 | 1522 | size_t num; |
07bbc92c MC |
1523 | |
1524 | args = (struct ssl_async_args *)vargs; | |
1525 | s = args->s; | |
1526 | buf = args->buf; | |
1527 | num = args->num; | |
ec447924 MC |
1528 | switch (args->type) { |
1529 | case READFUNC: | |
7ee8627f | 1530 | return args->f.func_read(s, buf, num, &s->asyncrw); |
ec447924 | 1531 | case WRITEFUNC: |
7ee8627f | 1532 | return args->f.func_write(s, buf, num, &s->asyncrw); |
ec447924 MC |
1533 | case OTHERFUNC: |
1534 | return args->f.func_other(s); | |
1535 | } | |
1536 | return -1; | |
07bbc92c MC |
1537 | } |
1538 | ||
4ee7d3f9 | 1539 | int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes) |
0f113f3e | 1540 | { |
c4c32155 | 1541 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1542 | SSLerr(SSL_F_SSL_READ_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1543 | return -1; |
1544 | } | |
1545 | ||
1546 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
1547 | s->rwstate = SSL_NOTHING; | |
4ee7d3f9 | 1548 | return 0; |
0f113f3e | 1549 | } |
07bbc92c | 1550 | |
564547e4 MC |
1551 | if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY |
1552 | || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) { | |
0a5ece5b MC |
1553 | SSLerr(SSL_F_SSL_READ_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1554 | return 0; | |
1555 | } | |
564547e4 MC |
1556 | /* |
1557 | * If we are a client and haven't received the ServerHello etc then we | |
1558 | * better do that | |
1559 | */ | |
1560 | ossl_statem_check_finish_init(s, 0); | |
0a5ece5b | 1561 | |
e8aa8b6c | 1562 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1563 | struct ssl_async_args args; |
eda75751 | 1564 | int ret; |
add2f5ca MC |
1565 | |
1566 | args.s = s; | |
1567 | args.buf = buf; | |
1568 | args.num = num; | |
ec447924 MC |
1569 | args.type = READFUNC; |
1570 | args.f.func_read = s->method->ssl_read; | |
add2f5ca | 1571 | |
eda75751 | 1572 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
54105ddd | 1573 | *readbytes = s->asyncrw; |
eda75751 | 1574 | return ret; |
07bbc92c | 1575 | } else { |
54105ddd | 1576 | return s->method->ssl_read(s, buf, num, readbytes); |
07bbc92c | 1577 | } |
0f113f3e MC |
1578 | } |
1579 | ||
4ee7d3f9 | 1580 | int SSL_read(SSL *s, void *buf, int num) |
eda75751 MC |
1581 | { |
1582 | int ret; | |
54105ddd | 1583 | size_t readbytes; |
eda75751 MC |
1584 | |
1585 | if (num < 0) { | |
4ee7d3f9 | 1586 | SSLerr(SSL_F_SSL_READ, SSL_R_BAD_LENGTH); |
eda75751 MC |
1587 | return -1; |
1588 | } | |
1589 | ||
4ee7d3f9 | 1590 | ret = ssl_read_internal(s, buf, (size_t)num, &readbytes); |
eda75751 MC |
1591 | |
1592 | /* | |
1593 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1594 | * <= INT_MAX | |
1595 | */ | |
1596 | if (ret > 0) | |
54105ddd | 1597 | ret = (int)readbytes; |
eda75751 MC |
1598 | |
1599 | return ret; | |
1600 | } | |
1601 | ||
4ee7d3f9 KR |
1602 | int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes) |
1603 | { | |
1604 | int ret = ssl_read_internal(s, buf, num, readbytes); | |
1605 | ||
1606 | if (ret < 0) | |
1607 | ret = 0; | |
1608 | return ret; | |
1609 | } | |
1610 | ||
f533fbd4 | 1611 | int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes) |
d781d247 MC |
1612 | { |
1613 | int ret; | |
1614 | ||
1615 | if (!s->server) { | |
f533fbd4 MC |
1616 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1617 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1618 | } |
1619 | ||
d781d247 MC |
1620 | switch (s->early_data_state) { |
1621 | case SSL_EARLY_DATA_NONE: | |
1622 | if (!SSL_in_before(s)) { | |
f533fbd4 MC |
1623 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, |
1624 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
1625 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1626 | } |
1627 | /* fall through */ | |
1628 | ||
1629 | case SSL_EARLY_DATA_ACCEPT_RETRY: | |
1630 | s->early_data_state = SSL_EARLY_DATA_ACCEPTING; | |
1631 | ret = SSL_accept(s); | |
1632 | if (ret <= 0) { | |
1633 | /* NBIO or error */ | |
1634 | s->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY; | |
f533fbd4 | 1635 | return SSL_READ_EARLY_DATA_ERROR; |
d781d247 MC |
1636 | } |
1637 | /* fall through */ | |
1638 | ||
1639 | case SSL_EARLY_DATA_READ_RETRY: | |
1640 | if (s->ext.early_data == SSL_EARLY_DATA_ACCEPTED) { | |
1641 | s->early_data_state = SSL_EARLY_DATA_READING; | |
1642 | ret = SSL_read_ex(s, buf, num, readbytes); | |
1643 | /* | |
1644 | * Record layer will call ssl_end_of_early_data_seen() if we see | |
1645 | * that alert - which updates the early_data_state to | |
1646 | * SSL_EARLY_DATA_FINISHED_READING | |
1647 | */ | |
1648 | if (ret > 0 || (ret <= 0 && s->early_data_state | |
1649 | != SSL_EARLY_DATA_FINISHED_READING)) { | |
1650 | s->early_data_state = SSL_EARLY_DATA_READ_RETRY; | |
f533fbd4 MC |
1651 | return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS |
1652 | : SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1653 | } |
1654 | } else { | |
1655 | s->early_data_state = SSL_EARLY_DATA_FINISHED_READING; | |
1656 | } | |
1657 | *readbytes = 0; | |
f533fbd4 | 1658 | return SSL_READ_EARLY_DATA_FINISH; |
d781d247 MC |
1659 | |
1660 | default: | |
f533fbd4 MC |
1661 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1662 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1663 | } |
1664 | } | |
1665 | ||
1666 | int ssl_end_of_early_data_seen(SSL *s) | |
1667 | { | |
f7e393be MC |
1668 | if (s->early_data_state == SSL_EARLY_DATA_READING |
1669 | || s->early_data_state == SSL_EARLY_DATA_READ_RETRY) { | |
d781d247 | 1670 | s->early_data_state = SSL_EARLY_DATA_FINISHED_READING; |
fe5e20fd | 1671 | ossl_statem_finish_early_data(s); |
d781d247 MC |
1672 | return 1; |
1673 | } | |
1674 | ||
1675 | return 0; | |
1676 | } | |
1677 | ||
f5b519c4 | 1678 | int SSL_get_early_data_status(const SSL *s) |
1ea4d09a MC |
1679 | { |
1680 | return s->ext.early_data; | |
1681 | } | |
1682 | ||
4ee7d3f9 | 1683 | static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes) |
0f113f3e | 1684 | { |
c4c32155 | 1685 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1686 | SSLerr(SSL_F_SSL_PEEK_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1687 | return -1; |
1688 | } | |
1689 | ||
1690 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
4ee7d3f9 | 1691 | return 0; |
0f113f3e | 1692 | } |
e8aa8b6c | 1693 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1694 | struct ssl_async_args args; |
eda75751 | 1695 | int ret; |
0f113f3e | 1696 | |
add2f5ca MC |
1697 | args.s = s; |
1698 | args.buf = buf; | |
1699 | args.num = num; | |
ec447924 MC |
1700 | args.type = READFUNC; |
1701 | args.f.func_read = s->method->ssl_peek; | |
07bbc92c | 1702 | |
eda75751 | 1703 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
54105ddd | 1704 | *readbytes = s->asyncrw; |
eda75751 | 1705 | return ret; |
add2f5ca | 1706 | } else { |
54105ddd | 1707 | return s->method->ssl_peek(s, buf, num, readbytes); |
add2f5ca | 1708 | } |
07bbc92c MC |
1709 | } |
1710 | ||
4ee7d3f9 | 1711 | int SSL_peek(SSL *s, void *buf, int num) |
7ee8627f MC |
1712 | { |
1713 | int ret; | |
4ee7d3f9 | 1714 | size_t readbytes; |
7ee8627f MC |
1715 | |
1716 | if (num < 0) { | |
4ee7d3f9 | 1717 | SSLerr(SSL_F_SSL_PEEK, SSL_R_BAD_LENGTH); |
7ee8627f MC |
1718 | return -1; |
1719 | } | |
1720 | ||
4ee7d3f9 | 1721 | ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes); |
7ee8627f MC |
1722 | |
1723 | /* | |
1724 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1725 | * <= INT_MAX | |
1726 | */ | |
1727 | if (ret > 0) | |
4ee7d3f9 | 1728 | ret = (int)readbytes; |
7ee8627f MC |
1729 | |
1730 | return ret; | |
1731 | } | |
1732 | ||
4ee7d3f9 KR |
1733 | |
1734 | int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes) | |
1735 | { | |
1736 | int ret = ssl_peek_internal(s, buf, num, readbytes); | |
1737 | ||
1738 | if (ret < 0) | |
1739 | ret = 0; | |
1740 | return ret; | |
1741 | } | |
1742 | ||
1743 | int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written) | |
0f113f3e | 1744 | { |
c4c32155 | 1745 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1746 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1747 | return -1; |
1748 | } | |
1749 | ||
1750 | if (s->shutdown & SSL_SENT_SHUTDOWN) { | |
1751 | s->rwstate = SSL_NOTHING; | |
4ee7d3f9 KR |
1752 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_PROTOCOL_IS_SHUTDOWN); |
1753 | return -1; | |
0f113f3e | 1754 | } |
07bbc92c | 1755 | |
564547e4 MC |
1756 | if (s->early_data_state == SSL_EARLY_DATA_WRITE_RETRY) { |
1757 | /* | |
1758 | * We're still writing early data. We need to stop that so we can write | |
1759 | * normal data | |
1760 | */ | |
3eaa4170 | 1761 | if (!ssl_write_early_finish(s)) |
564547e4 MC |
1762 | return 0; |
1763 | } else if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY | |
09f28874 MC |
1764 | || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY |
1765 | || s->early_data_state == SSL_EARLY_DATA_READ_RETRY) { | |
0a5ece5b | 1766 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
49e7fe12 | 1767 | return 0; |
0a5ece5b | 1768 | } |
564547e4 MC |
1769 | /* If we are a client and haven't sent the Finished we better do that */ |
1770 | ossl_statem_check_finish_init(s, 1); | |
49e7fe12 | 1771 | |
e8aa8b6c | 1772 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
7ee8627f | 1773 | int ret; |
add2f5ca MC |
1774 | struct ssl_async_args args; |
1775 | ||
1776 | args.s = s; | |
1777 | args.buf = (void *)buf; | |
1778 | args.num = num; | |
ec447924 MC |
1779 | args.type = WRITEFUNC; |
1780 | args.f.func_write = s->method->ssl_write; | |
add2f5ca | 1781 | |
7ee8627f MC |
1782 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
1783 | *written = s->asyncrw; | |
1784 | return ret; | |
07bbc92c | 1785 | } else { |
7ee8627f | 1786 | return s->method->ssl_write(s, buf, num, written); |
07bbc92c | 1787 | } |
0f113f3e | 1788 | } |
d02b48c6 | 1789 | |
4ee7d3f9 KR |
1790 | int SSL_write(SSL *s, const void *buf, int num) |
1791 | { | |
1792 | int ret; | |
1793 | size_t written; | |
1794 | ||
1795 | if (num < 0) { | |
1796 | SSLerr(SSL_F_SSL_WRITE, SSL_R_BAD_LENGTH); | |
1797 | return -1; | |
1798 | } | |
1799 | ||
1800 | ret = ssl_write_internal(s, buf, (size_t)num, &written); | |
1801 | ||
1802 | /* | |
1803 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1804 | * <= INT_MAX | |
1805 | */ | |
1806 | if (ret > 0) | |
1807 | ret = (int)written; | |
1808 | ||
1809 | return ret; | |
1810 | } | |
1811 | ||
1812 | int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written) | |
1813 | { | |
1814 | int ret = ssl_write_internal(s, buf, num, written); | |
1815 | ||
1816 | if (ret < 0) | |
1817 | ret = 0; | |
1818 | return ret; | |
1819 | } | |
1820 | ||
0665b4ed | 1821 | int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written) |
49e7fe12 MC |
1822 | { |
1823 | int ret; | |
1824 | ||
49e7fe12 MC |
1825 | switch (s->early_data_state) { |
1826 | case SSL_EARLY_DATA_NONE: | |
09f28874 MC |
1827 | if (s->server |
1828 | || !SSL_in_before(s) | |
0a5ece5b MC |
1829 | || s->session == NULL |
1830 | || s->session->ext.max_early_data == 0) { | |
09f28874 MC |
1831 | SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, |
1832 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
49e7fe12 MC |
1833 | return 0; |
1834 | } | |
1835 | /* fall through */ | |
1836 | ||
1837 | case SSL_EARLY_DATA_CONNECT_RETRY: | |
1838 | s->early_data_state = SSL_EARLY_DATA_CONNECTING; | |
1839 | ret = SSL_connect(s); | |
1840 | if (ret <= 0) { | |
1841 | /* NBIO or error */ | |
1842 | s->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY; | |
1843 | return 0; | |
1844 | } | |
1845 | /* fall through */ | |
1846 | ||
1847 | case SSL_EARLY_DATA_WRITE_RETRY: | |
1848 | s->early_data_state = SSL_EARLY_DATA_WRITING; | |
1849 | ret = SSL_write_ex(s, buf, num, written); | |
1850 | s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY; | |
1851 | return ret; | |
1852 | ||
09f28874 MC |
1853 | case SSL_EARLY_DATA_READ_RETRY: |
1854 | /* We are a server writing to an unauthenticated client */ | |
1855 | s->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING; | |
1856 | ret = SSL_write_ex(s, buf, num, written); | |
1857 | s->early_data_state = SSL_EARLY_DATA_READ_RETRY; | |
1858 | return ret; | |
1859 | ||
49e7fe12 | 1860 | default: |
09f28874 | 1861 | SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
49e7fe12 MC |
1862 | return 0; |
1863 | } | |
1864 | } | |
1865 | ||
3eaa4170 | 1866 | static int ssl_write_early_finish(SSL *s) |
49e7fe12 MC |
1867 | { |
1868 | int ret; | |
1869 | ||
1870 | if (s->early_data_state != SSL_EARLY_DATA_WRITE_RETRY) { | |
1871 | SSLerr(SSL_F_SSL_WRITE_EARLY_FINISH, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
1872 | return 0; | |
1873 | } | |
1874 | ||
1875 | s->early_data_state = SSL_EARLY_DATA_WRITING; | |
1876 | ret = ssl3_send_alert(s, SSL3_AL_WARNING, SSL_AD_END_OF_EARLY_DATA); | |
1877 | if (ret <= 0) { | |
1878 | s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY; | |
1879 | return 0; | |
1880 | } | |
1881 | s->early_data_state = SSL_EARLY_DATA_FINISHED_WRITING; | |
1882 | /* | |
1883 | * We set the enc_write_ctx back to NULL because we may end up writing | |
1884 | * in cleartext again if we get a HelloRetryRequest from the server. | |
1885 | */ | |
1886 | EVP_CIPHER_CTX_free(s->enc_write_ctx); | |
1887 | s->enc_write_ctx = NULL; | |
1888 | ossl_statem_set_in_init(s, 1); | |
1889 | return 1; | |
1890 | } | |
1891 | ||
4f43d0e7 | 1892 | int SSL_shutdown(SSL *s) |
0f113f3e MC |
1893 | { |
1894 | /* | |
1895 | * Note that this function behaves differently from what one might | |
1896 | * expect. Return values are 0 for no success (yet), 1 for success; but | |
1897 | * calling it once is usually not enough, even if blocking I/O is used | |
1898 | * (see ssl3_shutdown). | |
1899 | */ | |
1900 | ||
c4c32155 | 1901 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1902 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); |
1903 | return -1; | |
1904 | } | |
1905 | ||
64f9f406 | 1906 | if (!SSL_in_init(s)) { |
e8aa8b6c | 1907 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
64f9f406 | 1908 | struct ssl_async_args args; |
ec447924 | 1909 | |
64f9f406 MC |
1910 | args.s = s; |
1911 | args.type = OTHERFUNC; | |
1912 | args.f.func_other = s->method->ssl_shutdown; | |
ec447924 | 1913 | |
64f9f406 MC |
1914 | return ssl_start_async_job(s, &args, ssl_io_intern); |
1915 | } else { | |
1916 | return s->method->ssl_shutdown(s); | |
1917 | } | |
ec447924 | 1918 | } else { |
64f9f406 MC |
1919 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT); |
1920 | return -1; | |
ec447924 | 1921 | } |
0f113f3e | 1922 | } |
d02b48c6 | 1923 | |
4fbfe86a | 1924 | int SSL_key_update(SSL *s, int updatetype) |
44c04a2e | 1925 | { |
f14afcaa | 1926 | /* |
a9998e2f | 1927 | * TODO(TLS1.3): How will applications know whether TLSv1.3 has been |
f14afcaa MC |
1928 | * negotiated, and that it is appropriate to call SSL_key_update() instead |
1929 | * of SSL_renegotiate(). | |
1930 | */ | |
44c04a2e MC |
1931 | if (!SSL_IS_TLS13(s)) { |
1932 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_WRONG_SSL_VERSION); | |
1933 | return 0; | |
1934 | } | |
1935 | ||
1936 | if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED | |
1937 | && updatetype != SSL_KEY_UPDATE_REQUESTED) { | |
1938 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_INVALID_KEY_UPDATE_TYPE); | |
1939 | return 0; | |
1940 | } | |
1941 | ||
1942 | if (!SSL_is_init_finished(s)) { | |
1943 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_STILL_IN_INIT); | |
1944 | return 0; | |
1945 | } | |
1946 | ||
1947 | ossl_statem_set_in_init(s, 1); | |
44c04a2e | 1948 | s->key_update = updatetype; |
44c04a2e MC |
1949 | return 1; |
1950 | } | |
1951 | ||
4fbfe86a | 1952 | int SSL_get_key_update_type(SSL *s) |
53d1d07d MC |
1953 | { |
1954 | return s->key_update; | |
1955 | } | |
1956 | ||
4f43d0e7 | 1957 | int SSL_renegotiate(SSL *s) |
0f113f3e | 1958 | { |
44c04a2e MC |
1959 | if (SSL_IS_TLS13(s)) { |
1960 | SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_WRONG_SSL_VERSION); | |
2c0980d2 | 1961 | return 0; |
44c04a2e | 1962 | } |
cda6b998 | 1963 | |
0f113f3e MC |
1964 | if (s->renegotiate == 0) |
1965 | s->renegotiate = 1; | |
44959ee4 | 1966 | |
0f113f3e | 1967 | s->new_session = 1; |
44959ee4 | 1968 | |
0f113f3e MC |
1969 | return (s->method->ssl_renegotiate(s)); |
1970 | } | |
d02b48c6 | 1971 | |
44959ee4 | 1972 | int SSL_renegotiate_abbreviated(SSL *s) |
0f113f3e | 1973 | { |
cda6b998 | 1974 | if (SSL_IS_TLS13(s)) |
2c0980d2 | 1975 | return 0; |
cda6b998 | 1976 | |
0f113f3e MC |
1977 | if (s->renegotiate == 0) |
1978 | s->renegotiate = 1; | |
c519e89f | 1979 | |
0f113f3e | 1980 | s->new_session = 0; |
c519e89f | 1981 | |
0f113f3e MC |
1982 | return (s->method->ssl_renegotiate(s)); |
1983 | } | |
44959ee4 | 1984 | |
6b0e9fac | 1985 | int SSL_renegotiate_pending(SSL *s) |
0f113f3e MC |
1986 | { |
1987 | /* | |
1988 | * becomes true when negotiation is requested; false again once a | |
1989 | * handshake has finished | |
1990 | */ | |
1991 | return (s->renegotiate != 0); | |
1992 | } | |
1993 | ||
1994 | long SSL_ctrl(SSL *s, int cmd, long larg, void *parg) | |
1995 | { | |
1996 | long l; | |
1997 | ||
1998 | switch (cmd) { | |
1999 | case SSL_CTRL_GET_READ_AHEAD: | |
52e1d7b1 | 2000 | return (RECORD_LAYER_get_read_ahead(&s->rlayer)); |
0f113f3e | 2001 | case SSL_CTRL_SET_READ_AHEAD: |
52e1d7b1 MC |
2002 | l = RECORD_LAYER_get_read_ahead(&s->rlayer); |
2003 | RECORD_LAYER_set_read_ahead(&s->rlayer, larg); | |
0f113f3e MC |
2004 | return (l); |
2005 | ||
2006 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
2007 | s->msg_callback_arg = parg; | |
2008 | return 1; | |
2009 | ||
0f113f3e MC |
2010 | case SSL_CTRL_MODE: |
2011 | return (s->mode |= larg); | |
2012 | case SSL_CTRL_CLEAR_MODE: | |
2013 | return (s->mode &= ~larg); | |
2014 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
348240c6 | 2015 | return (long)(s->max_cert_list); |
0f113f3e | 2016 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
2017 | if (larg < 0) |
2018 | return 0; | |
2019 | l = (long)s->max_cert_list; | |
2020 | s->max_cert_list = (size_t)larg; | |
2021 | return l; | |
0f113f3e MC |
2022 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: |
2023 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
2024 | return 0; | |
2025 | s->max_send_fragment = larg; | |
d102d9df MC |
2026 | if (s->max_send_fragment < s->split_send_fragment) |
2027 | s->split_send_fragment = s->max_send_fragment; | |
2028 | return 1; | |
2029 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: | |
7ee8627f | 2030 | if ((size_t)larg > s->max_send_fragment || larg == 0) |
d102d9df MC |
2031 | return 0; |
2032 | s->split_send_fragment = larg; | |
0f113f3e | 2033 | return 1; |
d102d9df MC |
2034 | case SSL_CTRL_SET_MAX_PIPELINES: |
2035 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
2036 | return 0; | |
2037 | s->max_pipelines = larg; | |
94777c9c MC |
2038 | if (larg > 1) |
2039 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
07077415 | 2040 | return 1; |
0f113f3e MC |
2041 | case SSL_CTRL_GET_RI_SUPPORT: |
2042 | if (s->s3) | |
2043 | return s->s3->send_connection_binding; | |
2044 | else | |
2045 | return 0; | |
2046 | case SSL_CTRL_CERT_FLAGS: | |
2047 | return (s->cert->cert_flags |= larg); | |
2048 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
2049 | return (s->cert->cert_flags &= ~larg); | |
2050 | ||
2051 | case SSL_CTRL_GET_RAW_CIPHERLIST: | |
2052 | if (parg) { | |
76106e60 | 2053 | if (s->s3->tmp.ciphers_raw == NULL) |
0f113f3e | 2054 | return 0; |
76106e60 DSH |
2055 | *(unsigned char **)parg = s->s3->tmp.ciphers_raw; |
2056 | return (int)s->s3->tmp.ciphers_rawlen; | |
e9fa092e EK |
2057 | } else { |
2058 | return TLS_CIPHER_LEN; | |
2059 | } | |
c5364614 | 2060 | case SSL_CTRL_GET_EXTMS_SUPPORT: |
024f543c | 2061 | if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s)) |
a230b26e | 2062 | return -1; |
dccd20d1 | 2063 | if (s->session->flags & SSL_SESS_FLAG_EXTMS) |
c5364614 DSH |
2064 | return 1; |
2065 | else | |
2066 | return 0; | |
7946ab33 | 2067 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
4fa52141 VD |
2068 | return ssl_set_version_bound(s->ctx->method->version, (int)larg, |
2069 | &s->min_proto_version); | |
7946ab33 | 2070 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
4fa52141 VD |
2071 | return ssl_set_version_bound(s->ctx->method->version, (int)larg, |
2072 | &s->max_proto_version); | |
0f113f3e MC |
2073 | default: |
2074 | return (s->method->ssl_ctrl(s, cmd, larg, parg)); | |
2075 | } | |
2076 | } | |
2077 | ||
2078 | long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
2079 | { | |
2080 | switch (cmd) { | |
2081 | case SSL_CTRL_SET_MSG_CALLBACK: | |
2082 | s->msg_callback = (void (*) | |
2083 | (int write_p, int version, int content_type, | |
2084 | const void *buf, size_t len, SSL *ssl, | |
2085 | void *arg))(fp); | |
2086 | return 1; | |
2087 | ||
2088 | default: | |
2089 | return (s->method->ssl_callback_ctrl(s, cmd, fp)); | |
2090 | } | |
2091 | } | |
d3442bc7 | 2092 | |
3c1d6bbc | 2093 | LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx) |
0f113f3e MC |
2094 | { |
2095 | return ctx->sessions; | |
2096 | } | |
2097 | ||
2098 | long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
2099 | { | |
2100 | long l; | |
2101 | /* For some cases with ctx == NULL perform syntax checks */ | |
2102 | if (ctx == NULL) { | |
2103 | switch (cmd) { | |
14536c8c | 2104 | #ifndef OPENSSL_NO_EC |
de4d764e MC |
2105 | case SSL_CTRL_SET_GROUPS_LIST: |
2106 | return tls1_set_groups_list(NULL, NULL, parg); | |
0f113f3e MC |
2107 | #endif |
2108 | case SSL_CTRL_SET_SIGALGS_LIST: | |
2109 | case SSL_CTRL_SET_CLIENT_SIGALGS_LIST: | |
2110 | return tls1_set_sigalgs_list(NULL, parg, 0); | |
2111 | default: | |
2112 | return 0; | |
2113 | } | |
2114 | } | |
2115 | ||
2116 | switch (cmd) { | |
2117 | case SSL_CTRL_GET_READ_AHEAD: | |
2118 | return (ctx->read_ahead); | |
2119 | case SSL_CTRL_SET_READ_AHEAD: | |
2120 | l = ctx->read_ahead; | |
2121 | ctx->read_ahead = larg; | |
2122 | return (l); | |
2123 | ||
2124 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
2125 | ctx->msg_callback_arg = parg; | |
2126 | return 1; | |
2127 | ||
2128 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
348240c6 | 2129 | return (long)(ctx->max_cert_list); |
0f113f3e | 2130 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
2131 | if (larg < 0) |
2132 | return 0; | |
2133 | l = (long)ctx->max_cert_list; | |
2134 | ctx->max_cert_list = (size_t)larg; | |
2135 | return l; | |
0f113f3e MC |
2136 | |
2137 | case SSL_CTRL_SET_SESS_CACHE_SIZE: | |
348240c6 MC |
2138 | if (larg < 0) |
2139 | return 0; | |
2140 | l = (long)ctx->session_cache_size; | |
2141 | ctx->session_cache_size = (size_t)larg; | |
2142 | return l; | |
0f113f3e | 2143 | case SSL_CTRL_GET_SESS_CACHE_SIZE: |
348240c6 | 2144 | return (long)(ctx->session_cache_size); |
0f113f3e MC |
2145 | case SSL_CTRL_SET_SESS_CACHE_MODE: |
2146 | l = ctx->session_cache_mode; | |
2147 | ctx->session_cache_mode = larg; | |
2148 | return (l); | |
2149 | case SSL_CTRL_GET_SESS_CACHE_MODE: | |
2150 | return (ctx->session_cache_mode); | |
2151 | ||
2152 | case SSL_CTRL_SESS_NUMBER: | |
2153 | return (lh_SSL_SESSION_num_items(ctx->sessions)); | |
2154 | case SSL_CTRL_SESS_CONNECT: | |
2155 | return (ctx->stats.sess_connect); | |
2156 | case SSL_CTRL_SESS_CONNECT_GOOD: | |
2157 | return (ctx->stats.sess_connect_good); | |
2158 | case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: | |
2159 | return (ctx->stats.sess_connect_renegotiate); | |
2160 | case SSL_CTRL_SESS_ACCEPT: | |
2161 | return (ctx->stats.sess_accept); | |
2162 | case SSL_CTRL_SESS_ACCEPT_GOOD: | |
2163 | return (ctx->stats.sess_accept_good); | |
2164 | case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: | |
2165 | return (ctx->stats.sess_accept_renegotiate); | |
2166 | case SSL_CTRL_SESS_HIT: | |
2167 | return (ctx->stats.sess_hit); | |
2168 | case SSL_CTRL_SESS_CB_HIT: | |
2169 | return (ctx->stats.sess_cb_hit); | |
2170 | case SSL_CTRL_SESS_MISSES: | |
2171 | return (ctx->stats.sess_miss); | |
2172 | case SSL_CTRL_SESS_TIMEOUTS: | |
2173 | return (ctx->stats.sess_timeout); | |
2174 | case SSL_CTRL_SESS_CACHE_FULL: | |
2175 | return (ctx->stats.sess_cache_full); | |
0f113f3e MC |
2176 | case SSL_CTRL_MODE: |
2177 | return (ctx->mode |= larg); | |
2178 | case SSL_CTRL_CLEAR_MODE: | |
2179 | return (ctx->mode &= ~larg); | |
2180 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
2181 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
2182 | return 0; | |
2183 | ctx->max_send_fragment = larg; | |
d102d9df | 2184 | if (ctx->max_send_fragment < ctx->split_send_fragment) |
bfb155c1 | 2185 | ctx->split_send_fragment = ctx->max_send_fragment; |
0f113f3e | 2186 | return 1; |
d102d9df | 2187 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: |
7ee8627f | 2188 | if ((size_t)larg > ctx->max_send_fragment || larg == 0) |
d102d9df MC |
2189 | return 0; |
2190 | ctx->split_send_fragment = larg; | |
2191 | return 1; | |
2192 | case SSL_CTRL_SET_MAX_PIPELINES: | |
2193 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
2194 | return 0; | |
2195 | ctx->max_pipelines = larg; | |
07077415 | 2196 | return 1; |
0f113f3e MC |
2197 | case SSL_CTRL_CERT_FLAGS: |
2198 | return (ctx->cert->cert_flags |= larg); | |
2199 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
2200 | return (ctx->cert->cert_flags &= ~larg); | |
7946ab33 | 2201 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
4fa52141 VD |
2202 | return ssl_set_version_bound(ctx->method->version, (int)larg, |
2203 | &ctx->min_proto_version); | |
7946ab33 | 2204 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
4fa52141 VD |
2205 | return ssl_set_version_bound(ctx->method->version, (int)larg, |
2206 | &ctx->max_proto_version); | |
0f113f3e MC |
2207 | default: |
2208 | return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg)); | |
2209 | } | |
2210 | } | |
2211 | ||
2212 | long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
2213 | { | |
2214 | switch (cmd) { | |
2215 | case SSL_CTRL_SET_MSG_CALLBACK: | |
2216 | ctx->msg_callback = (void (*) | |
2217 | (int write_p, int version, int content_type, | |
2218 | const void *buf, size_t len, SSL *ssl, | |
2219 | void *arg))(fp); | |
2220 | return 1; | |
2221 | ||
2222 | default: | |
2223 | return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp)); | |
2224 | } | |
2225 | } | |
d3442bc7 | 2226 | |
ccd86b68 | 2227 | int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) |
0f113f3e | 2228 | { |
90d9e49a DSH |
2229 | if (a->id > b->id) |
2230 | return 1; | |
2231 | if (a->id < b->id) | |
2232 | return -1; | |
2233 | return 0; | |
0f113f3e MC |
2234 | } |
2235 | ||
2236 | int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, | |
2237 | const SSL_CIPHER *const *bp) | |
2238 | { | |
90d9e49a DSH |
2239 | if ((*ap)->id > (*bp)->id) |
2240 | return 1; | |
2241 | if ((*ap)->id < (*bp)->id) | |
2242 | return -1; | |
2243 | return 0; | |
0f113f3e | 2244 | } |
d02b48c6 | 2245 | |
4f43d0e7 | 2246 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2247 | * preference */ |
0821bcd4 | 2248 | STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) |
0f113f3e MC |
2249 | { |
2250 | if (s != NULL) { | |
2251 | if (s->cipher_list != NULL) { | |
2252 | return (s->cipher_list); | |
2253 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { | |
2254 | return (s->ctx->cipher_list); | |
2255 | } | |
2256 | } | |
2257 | return (NULL); | |
2258 | } | |
2259 | ||
831eef2c NM |
2260 | STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s) |
2261 | { | |
2262 | if ((s == NULL) || (s->session == NULL) || !s->server) | |
2263 | return NULL; | |
2264 | return s->session->ciphers; | |
2265 | } | |
2266 | ||
8b8e5bed | 2267 | STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s) |
0f113f3e MC |
2268 | { |
2269 | STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers; | |
2270 | int i; | |
2271 | ciphers = SSL_get_ciphers(s); | |
2272 | if (!ciphers) | |
2273 | return NULL; | |
2274 | ssl_set_client_disabled(s); | |
2275 | for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { | |
2276 | const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i); | |
2277 | if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) { | |
2278 | if (!sk) | |
2279 | sk = sk_SSL_CIPHER_new_null(); | |
2280 | if (!sk) | |
2281 | return NULL; | |
2282 | if (!sk_SSL_CIPHER_push(sk, c)) { | |
2283 | sk_SSL_CIPHER_free(sk); | |
2284 | return NULL; | |
2285 | } | |
2286 | } | |
2287 | } | |
2288 | return sk; | |
2289 | } | |
8b8e5bed | 2290 | |
4f43d0e7 | 2291 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2292 | * algorithm id */ |
f73e07cf | 2293 | STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) |
0f113f3e MC |
2294 | { |
2295 | if (s != NULL) { | |
2296 | if (s->cipher_list_by_id != NULL) { | |
2297 | return (s->cipher_list_by_id); | |
2298 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) { | |
2299 | return (s->ctx->cipher_list_by_id); | |
2300 | } | |
2301 | } | |
2302 | return (NULL); | |
2303 | } | |
d02b48c6 | 2304 | |
4f43d0e7 | 2305 | /** The old interface to get the same thing as SSL_get_ciphers() */ |
0f113f3e MC |
2306 | const char *SSL_get_cipher_list(const SSL *s, int n) |
2307 | { | |
4a640fb6 | 2308 | const SSL_CIPHER *c; |
0f113f3e MC |
2309 | STACK_OF(SSL_CIPHER) *sk; |
2310 | ||
2311 | if (s == NULL) | |
2312 | return (NULL); | |
2313 | sk = SSL_get_ciphers(s); | |
2314 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) | |
2315 | return (NULL); | |
2316 | c = sk_SSL_CIPHER_value(sk, n); | |
2317 | if (c == NULL) | |
2318 | return (NULL); | |
2319 | return (c->name); | |
2320 | } | |
d02b48c6 | 2321 | |
9d5ac953 KY |
2322 | /** return a STACK of the ciphers available for the SSL_CTX and in order of |
2323 | * preference */ | |
2324 | STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx) | |
2325 | { | |
2326 | if (ctx != NULL) | |
2327 | return ctx->cipher_list; | |
2328 | return NULL; | |
2329 | } | |
2330 | ||
25f923dd | 2331 | /** specify the ciphers to be used by default by the SSL_CTX */ |
018e57c7 | 2332 | int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) |
0f113f3e MC |
2333 | { |
2334 | STACK_OF(SSL_CIPHER) *sk; | |
2335 | ||
2336 | sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, | |
2337 | &ctx->cipher_list_by_id, str, ctx->cert); | |
2338 | /* | |
2339 | * ssl_create_cipher_list may return an empty stack if it was unable to | |
2340 | * find a cipher matching the given rule string (for example if the rule | |
2341 | * string specifies a cipher which has been disabled). This is not an | |
2342 | * error as far as ssl_create_cipher_list is concerned, and hence | |
2343 | * ctx->cipher_list and ctx->cipher_list_by_id has been updated. | |
2344 | */ | |
2345 | if (sk == NULL) | |
2346 | return 0; | |
2347 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2348 | SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2349 | return 0; | |
2350 | } | |
2351 | return 1; | |
2352 | } | |
d02b48c6 | 2353 | |
4f43d0e7 | 2354 | /** specify the ciphers to be used by the SSL */ |
0f113f3e MC |
2355 | int SSL_set_cipher_list(SSL *s, const char *str) |
2356 | { | |
2357 | STACK_OF(SSL_CIPHER) *sk; | |
2358 | ||
2359 | sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, | |
2360 | &s->cipher_list_by_id, str, s->cert); | |
2361 | /* see comment in SSL_CTX_set_cipher_list */ | |
2362 | if (sk == NULL) | |
2363 | return 0; | |
2364 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2365 | SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2366 | return 0; | |
2367 | } | |
2368 | return 1; | |
2369 | } | |
d02b48c6 | 2370 | |
0f113f3e MC |
2371 | char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len) |
2372 | { | |
2373 | char *p; | |
2374 | STACK_OF(SSL_CIPHER) *sk; | |
4a640fb6 | 2375 | const SSL_CIPHER *c; |
0f113f3e MC |
2376 | int i; |
2377 | ||
2378 | if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2)) | |
2379 | return (NULL); | |
2380 | ||
2381 | p = buf; | |
2382 | sk = s->session->ciphers; | |
2383 | ||
2384 | if (sk_SSL_CIPHER_num(sk) == 0) | |
2385 | return NULL; | |
2386 | ||
2387 | for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { | |
2388 | int n; | |
2389 | ||
2390 | c = sk_SSL_CIPHER_value(sk, i); | |
2391 | n = strlen(c->name); | |
2392 | if (n + 1 > len) { | |
2393 | if (p != buf) | |
2394 | --p; | |
2395 | *p = '\0'; | |
2396 | return buf; | |
2397 | } | |
a89c9a0d | 2398 | memcpy(p, c->name, n + 1); |
0f113f3e MC |
2399 | p += n; |
2400 | *(p++) = ':'; | |
2401 | len -= n + 1; | |
2402 | } | |
2403 | p[-1] = '\0'; | |
2404 | return (buf); | |
2405 | } | |
2406 | ||
52b8dad8 | 2407 | /** return a servername extension value if provided in Client Hello, or NULL. |
f1fd4544 | 2408 | * So far, only host_name types are defined (RFC 3546). |
ed3883d2 BM |
2409 | */ |
2410 | ||
f1fd4544 | 2411 | const char *SSL_get_servername(const SSL *s, const int type) |
0f113f3e MC |
2412 | { |
2413 | if (type != TLSEXT_NAMETYPE_host_name) | |
2414 | return NULL; | |
a13c20f6 | 2415 | |
aff8c126 RS |
2416 | return s->session && !s->ext.hostname ? |
2417 | s->session->ext.hostname : s->ext.hostname; | |
0f113f3e | 2418 | } |
ed3883d2 | 2419 | |
f1fd4544 | 2420 | int SSL_get_servername_type(const SSL *s) |
0f113f3e MC |
2421 | { |
2422 | if (s->session | |
aff8c126 RS |
2423 | && (!s->ext.hostname ? s->session-> |
2424 | ext.hostname : s->ext.hostname)) | |
0f113f3e MC |
2425 | return TLSEXT_NAMETYPE_host_name; |
2426 | return -1; | |
2427 | } | |
ee2ffc27 | 2428 | |
0f113f3e MC |
2429 | /* |
2430 | * SSL_select_next_proto implements the standard protocol selection. It is | |
ee2ffc27 | 2431 | * expected that this function is called from the callback set by |
0f113f3e MC |
2432 | * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a |
2433 | * vector of 8-bit, length prefixed byte strings. The length byte itself is | |
2434 | * not included in the length. A byte string of length 0 is invalid. No byte | |
2435 | * string may be truncated. The current, but experimental algorithm for | |
2436 | * selecting the protocol is: 1) If the server doesn't support NPN then this | |
2437 | * is indicated to the callback. In this case, the client application has to | |
2438 | * abort the connection or have a default application level protocol. 2) If | |
2439 | * the server supports NPN, but advertises an empty list then the client | |
f430ba31 | 2440 | * selects the first protocol in its list, but indicates via the API that this |
0f113f3e MC |
2441 | * fallback case was enacted. 3) Otherwise, the client finds the first |
2442 | * protocol in the server's list that it supports and selects this protocol. | |
2443 | * This is because it's assumed that the server has better information about | |
2444 | * which protocol a client should use. 4) If the client doesn't support any | |
2445 | * of the server's advertised protocols, then this is treated the same as | |
2446 | * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was | |
2447 | * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. | |
ee2ffc27 | 2448 | */ |
0f113f3e MC |
2449 | int SSL_select_next_proto(unsigned char **out, unsigned char *outlen, |
2450 | const unsigned char *server, | |
2451 | unsigned int server_len, | |
a230b26e | 2452 | const unsigned char *client, unsigned int client_len) |
0f113f3e MC |
2453 | { |
2454 | unsigned int i, j; | |
2455 | const unsigned char *result; | |
2456 | int status = OPENSSL_NPN_UNSUPPORTED; | |
2457 | ||
2458 | /* | |
2459 | * For each protocol in server preference order, see if we support it. | |
2460 | */ | |
2461 | for (i = 0; i < server_len;) { | |
2462 | for (j = 0; j < client_len;) { | |
2463 | if (server[i] == client[j] && | |
2464 | memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) { | |
2465 | /* We found a match */ | |
2466 | result = &server[i]; | |
2467 | status = OPENSSL_NPN_NEGOTIATED; | |
2468 | goto found; | |
2469 | } | |
2470 | j += client[j]; | |
2471 | j++; | |
2472 | } | |
2473 | i += server[i]; | |
2474 | i++; | |
2475 | } | |
2476 | ||
2477 | /* There's no overlap between our protocols and the server's list. */ | |
2478 | result = client; | |
2479 | status = OPENSSL_NPN_NO_OVERLAP; | |
2480 | ||
2481 | found: | |
2482 | *out = (unsigned char *)result + 1; | |
2483 | *outlen = result[0]; | |
2484 | return status; | |
2485 | } | |
ee2ffc27 | 2486 | |
e481f9b9 | 2487 | #ifndef OPENSSL_NO_NEXTPROTONEG |
0f113f3e MC |
2488 | /* |
2489 | * SSL_get0_next_proto_negotiated sets *data and *len to point to the | |
2490 | * client's requested protocol for this connection and returns 0. If the | |
2491 | * client didn't request any protocol, then *data is set to NULL. Note that | |
2492 | * the client can request any protocol it chooses. The value returned from | |
2493 | * this function need not be a member of the list of supported protocols | |
ee2ffc27 BL |
2494 | * provided by the callback. |
2495 | */ | |
0f113f3e MC |
2496 | void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, |
2497 | unsigned *len) | |
2498 | { | |
aff8c126 | 2499 | *data = s->ext.npn; |
0f113f3e MC |
2500 | if (!*data) { |
2501 | *len = 0; | |
2502 | } else { | |
aff8c126 | 2503 | *len = (unsigned int)s->ext.npn_len; |
0f113f3e MC |
2504 | } |
2505 | } | |
2506 | ||
2507 | /* | |
aff8c126 | 2508 | * SSL_CTX_set_npn_advertised_cb sets a callback that is called when |
0f113f3e MC |
2509 | * a TLS server needs a list of supported protocols for Next Protocol |
2510 | * Negotiation. The returned list must be in wire format. The list is | |
2511 | * returned by setting |out| to point to it and |outlen| to its length. This | |
2512 | * memory will not be modified, but one should assume that the SSL* keeps a | |
2513 | * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it | |
2514 | * wishes to advertise. Otherwise, no such extension will be included in the | |
2515 | * ServerHello. | |
2516 | */ | |
aff8c126 | 2517 | void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx, |
8cbfcc70 | 2518 | SSL_CTX_npn_advertised_cb_func cb, |
aff8c126 | 2519 | void *arg) |
0f113f3e | 2520 | { |
aff8c126 RS |
2521 | ctx->ext.npn_advertised_cb = cb; |
2522 | ctx->ext.npn_advertised_cb_arg = arg; | |
0f113f3e MC |
2523 | } |
2524 | ||
2525 | /* | |
2526 | * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a | |
ee2ffc27 BL |
2527 | * client needs to select a protocol from the server's provided list. |out| |
2528 | * must be set to point to the selected protocol (which may be within |in|). | |
0f113f3e MC |
2529 | * The length of the protocol name must be written into |outlen|. The |
2530 | * server's advertised protocols are provided in |in| and |inlen|. The | |
2531 | * callback can assume that |in| is syntactically valid. The client must | |
2532 | * select a protocol. It is fatal to the connection if this callback returns | |
2533 | * a value other than SSL_TLSEXT_ERR_OK. | |
ee2ffc27 | 2534 | */ |
aff8c126 | 2535 | void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx, |
8cbfcc70 | 2536 | SSL_CTX_npn_select_cb_func cb, |
aff8c126 | 2537 | void *arg) |
0f113f3e | 2538 | { |
aff8c126 RS |
2539 | ctx->ext.npn_select_cb = cb; |
2540 | ctx->ext.npn_select_cb_arg = arg; | |
0f113f3e | 2541 | } |
e481f9b9 | 2542 | #endif |
a398f821 | 2543 | |
0f113f3e MC |
2544 | /* |
2545 | * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|. | |
6f017a8f | 2546 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2547 | * length-prefixed strings). Returns 0 on success. |
2548 | */ | |
2549 | int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, | |
817cd0d5 | 2550 | unsigned int protos_len) |
0f113f3e | 2551 | { |
aff8c126 RS |
2552 | OPENSSL_free(ctx->ext.alpn); |
2553 | ctx->ext.alpn = OPENSSL_memdup(protos, protos_len); | |
2554 | if (ctx->ext.alpn == NULL) { | |
72e9be3d | 2555 | SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); |
0f113f3e | 2556 | return 1; |
72e9be3d | 2557 | } |
aff8c126 | 2558 | ctx->ext.alpn_len = protos_len; |
0f113f3e MC |
2559 | |
2560 | return 0; | |
2561 | } | |
2562 | ||
2563 | /* | |
2564 | * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|. | |
6f017a8f | 2565 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2566 | * length-prefixed strings). Returns 0 on success. |
2567 | */ | |
2568 | int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, | |
817cd0d5 | 2569 | unsigned int protos_len) |
0f113f3e | 2570 | { |
aff8c126 RS |
2571 | OPENSSL_free(ssl->ext.alpn); |
2572 | ssl->ext.alpn = OPENSSL_memdup(protos, protos_len); | |
2573 | if (ssl->ext.alpn == NULL) { | |
72e9be3d | 2574 | SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); |
0f113f3e | 2575 | return 1; |
72e9be3d | 2576 | } |
aff8c126 | 2577 | ssl->ext.alpn_len = protos_len; |
0f113f3e MC |
2578 | |
2579 | return 0; | |
2580 | } | |
2581 | ||
2582 | /* | |
2583 | * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is | |
2584 | * called during ClientHello processing in order to select an ALPN protocol | |
2585 | * from the client's list of offered protocols. | |
2586 | */ | |
2587 | void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx, | |
8cbfcc70 RS |
2588 | SSL_CTX_alpn_select_cb_func cb, |
2589 | void *arg) | |
0f113f3e | 2590 | { |
aff8c126 RS |
2591 | ctx->ext.alpn_select_cb = cb; |
2592 | ctx->ext.alpn_select_cb_arg = arg; | |
0f113f3e MC |
2593 | } |
2594 | ||
2595 | /* | |
2596 | * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from | |
2597 | * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name | |
2598 | * (not including the leading length-prefix byte). If the server didn't | |
2599 | * respond with a negotiated protocol then |*len| will be zero. | |
2600 | */ | |
6f017a8f | 2601 | void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, |
817cd0d5 | 2602 | unsigned int *len) |
0f113f3e MC |
2603 | { |
2604 | *data = NULL; | |
2605 | if (ssl->s3) | |
2606 | *data = ssl->s3->alpn_selected; | |
2607 | if (*data == NULL) | |
2608 | *len = 0; | |
2609 | else | |
348240c6 | 2610 | *len = (unsigned int)ssl->s3->alpn_selected_len; |
0f113f3e MC |
2611 | } |
2612 | ||
74b4b494 | 2613 | int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, |
0f113f3e MC |
2614 | const char *label, size_t llen, |
2615 | const unsigned char *p, size_t plen, | |
2616 | int use_context) | |
2617 | { | |
c8a18468 | 2618 | if (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER) |
0f113f3e | 2619 | return -1; |
e0af0405 | 2620 | |
0f113f3e MC |
2621 | return s->method->ssl3_enc->export_keying_material(s, out, olen, label, |
2622 | llen, p, plen, | |
2623 | use_context); | |
2624 | } | |
e0af0405 | 2625 | |
3c1d6bbc | 2626 | static unsigned long ssl_session_hash(const SSL_SESSION *a) |
0f113f3e | 2627 | { |
bd5d27c1 | 2628 | const unsigned char *session_id = a->session_id; |
0f113f3e | 2629 | unsigned long l; |
bd5d27c1 DB |
2630 | unsigned char tmp_storage[4]; |
2631 | ||
2632 | if (a->session_id_length < sizeof(tmp_storage)) { | |
2633 | memset(tmp_storage, 0, sizeof(tmp_storage)); | |
2634 | memcpy(tmp_storage, a->session_id, a->session_id_length); | |
2635 | session_id = tmp_storage; | |
2636 | } | |
0f113f3e MC |
2637 | |
2638 | l = (unsigned long) | |
bd5d27c1 DB |
2639 | ((unsigned long)session_id[0]) | |
2640 | ((unsigned long)session_id[1] << 8L) | | |
2641 | ((unsigned long)session_id[2] << 16L) | | |
2642 | ((unsigned long)session_id[3] << 24L); | |
0f113f3e MC |
2643 | return (l); |
2644 | } | |
2645 | ||
2646 | /* | |
2647 | * NB: If this function (or indeed the hash function which uses a sort of | |
dc644fe2 | 2648 | * coarser function than this one) is changed, ensure |
0f113f3e MC |
2649 | * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on |
2650 | * being able to construct an SSL_SESSION that will collide with any existing | |
2651 | * session with a matching session ID. | |
2652 | */ | |
2653 | static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) | |
2654 | { | |
2655 | if (a->ssl_version != b->ssl_version) | |
2656 | return (1); | |
2657 | if (a->session_id_length != b->session_id_length) | |
2658 | return (1); | |
2659 | return (memcmp(a->session_id, b->session_id, a->session_id_length)); | |
2660 | } | |
2661 | ||
2662 | /* | |
2663 | * These wrapper functions should remain rather than redeclaring | |
d0fa136c | 2664 | * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each |
0f113f3e MC |
2665 | * variable. The reason is that the functions aren't static, they're exposed |
2666 | * via ssl.h. | |
2667 | */ | |
97b17195 | 2668 | |
4ebb342f | 2669 | SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth) |
0f113f3e MC |
2670 | { |
2671 | SSL_CTX *ret = NULL; | |
2672 | ||
2673 | if (meth == NULL) { | |
2674 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED); | |
2675 | return (NULL); | |
2676 | } | |
2677 | ||
0fc32b07 MC |
2678 | if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL)) |
2679 | return NULL; | |
7fa792d1 | 2680 | |
0f113f3e MC |
2681 | if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { |
2682 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); | |
2683 | goto err; | |
2684 | } | |
b51bce94 | 2685 | ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e MC |
2686 | if (ret == NULL) |
2687 | goto err; | |
2688 | ||
0f113f3e | 2689 | ret->method = meth; |
7946ab33 KR |
2690 | ret->min_proto_version = 0; |
2691 | ret->max_proto_version = 0; | |
0f113f3e MC |
2692 | ret->session_cache_mode = SSL_SESS_CACHE_SERVER; |
2693 | ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; | |
64b25758 | 2694 | /* We take the system default. */ |
0f113f3e | 2695 | ret->session_timeout = meth->get_timeout(); |
0f113f3e | 2696 | ret->references = 1; |
16203f7b AG |
2697 | ret->lock = CRYPTO_THREAD_lock_new(); |
2698 | if (ret->lock == NULL) { | |
2699 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2700 | OPENSSL_free(ret); | |
2701 | return NULL; | |
2702 | } | |
0f113f3e | 2703 | ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; |
0f113f3e | 2704 | ret->verify_mode = SSL_VERIFY_NONE; |
0f113f3e MC |
2705 | if ((ret->cert = ssl_cert_new()) == NULL) |
2706 | goto err; | |
2707 | ||
62d0577e | 2708 | ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp); |
0f113f3e MC |
2709 | if (ret->sessions == NULL) |
2710 | goto err; | |
2711 | ret->cert_store = X509_STORE_new(); | |
2712 | if (ret->cert_store == NULL) | |
2713 | goto err; | |
ed29e82a RP |
2714 | #ifndef OPENSSL_NO_CT |
2715 | ret->ctlog_store = CTLOG_STORE_new(); | |
2716 | if (ret->ctlog_store == NULL) | |
2717 | goto err; | |
2718 | #endif | |
61986d32 | 2719 | if (!ssl_create_cipher_list(ret->method, |
a230b26e EK |
2720 | &ret->cipher_list, &ret->cipher_list_by_id, |
2721 | SSL_DEFAULT_CIPHER_LIST, ret->cert) | |
2722 | || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { | |
0f113f3e MC |
2723 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS); |
2724 | goto err2; | |
2725 | } | |
2726 | ||
2727 | ret->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 2728 | if (ret->param == NULL) |
0f113f3e MC |
2729 | goto err; |
2730 | ||
2731 | if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) { | |
2732 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); | |
2733 | goto err2; | |
2734 | } | |
2735 | if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) { | |
2736 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); | |
2737 | goto err2; | |
2738 | } | |
2739 | ||
2740 | if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL) | |
2741 | goto err; | |
2742 | ||
25a807bc F |
2743 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) |
2744 | goto err; | |
0f113f3e | 2745 | |
0f113f3e MC |
2746 | /* No compression for DTLS */ |
2747 | if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)) | |
2748 | ret->comp_methods = SSL_COMP_get_compression_methods(); | |
2749 | ||
2750 | ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; | |
d102d9df | 2751 | ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; |
566dda07 | 2752 | |
4e2e1ec9 | 2753 | /* Setup RFC5077 ticket keys */ |
aff8c126 RS |
2754 | if ((RAND_bytes(ret->ext.tick_key_name, |
2755 | sizeof(ret->ext.tick_key_name)) <= 0) | |
2756 | || (RAND_bytes(ret->ext.tick_hmac_key, | |
2757 | sizeof(ret->ext.tick_hmac_key)) <= 0) | |
2758 | || (RAND_bytes(ret->ext.tick_aes_key, | |
2759 | sizeof(ret->ext.tick_aes_key)) <= 0)) | |
0f113f3e | 2760 | ret->options |= SSL_OP_NO_TICKET; |
6434abbf | 2761 | |
edc032b5 | 2762 | #ifndef OPENSSL_NO_SRP |
61986d32 | 2763 | if (!SSL_CTX_SRP_CTX_init(ret)) |
69f68237 | 2764 | goto err; |
edc032b5 | 2765 | #endif |
4db9677b | 2766 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e MC |
2767 | # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO |
2768 | # define eng_strx(x) #x | |
2769 | # define eng_str(x) eng_strx(x) | |
2770 | /* Use specific client engine automatically... ignore errors */ | |
2771 | { | |
2772 | ENGINE *eng; | |
2773 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2774 | if (!eng) { | |
2775 | ERR_clear_error(); | |
2776 | ENGINE_load_builtin_engines(); | |
2777 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2778 | } | |
2779 | if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) | |
2780 | ERR_clear_error(); | |
2781 | } | |
2782 | # endif | |
2783 | #endif | |
2784 | /* | |
2785 | * Default is to connect to non-RI servers. When RI is more widely | |
2786 | * deployed might change this. | |
2787 | */ | |
2788 | ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; | |
dc5744cb EK |
2789 | /* |
2790 | * Disable compression by default to prevent CRIME. Applications can | |
2791 | * re-enable compression by configuring | |
2792 | * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION); | |
2793 | * or by using the SSL_CONF library. | |
2794 | */ | |
2795 | ret->options |= SSL_OP_NO_COMPRESSION; | |
0f113f3e | 2796 | |
aff8c126 | 2797 | ret->ext.status_type = TLSEXT_STATUSTYPE_nothing; |
ba261f71 | 2798 | |
bfa9a9af MC |
2799 | /* |
2800 | * Default max early data is a fully loaded single record. Could be split | |
2801 | * across multiple records in practice | |
2802 | */ | |
2803 | ret->max_early_data = SSL3_RT_MAX_PLAIN_LENGTH; | |
2804 | ||
16203f7b | 2805 | return ret; |
0f113f3e MC |
2806 | err: |
2807 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2808 | err2: | |
e0e920b1 | 2809 | SSL_CTX_free(ret); |
16203f7b | 2810 | return NULL; |
0f113f3e | 2811 | } |
d02b48c6 | 2812 | |
c5ebfcab | 2813 | int SSL_CTX_up_ref(SSL_CTX *ctx) |
a18a31e4 | 2814 | { |
16203f7b | 2815 | int i; |
c5ebfcab | 2816 | |
2f545ae4 | 2817 | if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0) |
c5ebfcab F |
2818 | return 0; |
2819 | ||
2820 | REF_PRINT_COUNT("SSL_CTX", ctx); | |
2821 | REF_ASSERT_ISNT(i < 2); | |
2822 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
2823 | } |
2824 | ||
4f43d0e7 | 2825 | void SSL_CTX_free(SSL_CTX *a) |
0f113f3e MC |
2826 | { |
2827 | int i; | |
d02b48c6 | 2828 | |
0f113f3e MC |
2829 | if (a == NULL) |
2830 | return; | |
d02b48c6 | 2831 | |
2f545ae4 | 2832 | CRYPTO_DOWN_REF(&a->references, &i, a->lock); |
f3f1cf84 | 2833 | REF_PRINT_COUNT("SSL_CTX", a); |
0f113f3e MC |
2834 | if (i > 0) |
2835 | return; | |
f3f1cf84 | 2836 | REF_ASSERT_ISNT(i < 0); |
0f113f3e | 2837 | |
222561fe | 2838 | X509_VERIFY_PARAM_free(a->param); |
919ba009 | 2839 | dane_ctx_final(&a->dane); |
0f113f3e MC |
2840 | |
2841 | /* | |
2842 | * Free internal session cache. However: the remove_cb() may reference | |
2843 | * the ex_data of SSL_CTX, thus the ex_data store can only be removed | |
2844 | * after the sessions were flushed. | |
2845 | * As the ex_data handling routines might also touch the session cache, | |
2846 | * the most secure solution seems to be: empty (flush) the cache, then | |
2847 | * free ex_data, then finally free the cache. | |
2848 | * (See ticket [openssl.org #212].) | |
2849 | */ | |
2850 | if (a->sessions != NULL) | |
2851 | SSL_CTX_flush_sessions(a, 0); | |
2852 | ||
2853 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); | |
25aaa98a | 2854 | lh_SSL_SESSION_free(a->sessions); |
222561fe | 2855 | X509_STORE_free(a->cert_store); |
ed29e82a RP |
2856 | #ifndef OPENSSL_NO_CT |
2857 | CTLOG_STORE_free(a->ctlog_store); | |
2858 | #endif | |
25aaa98a RS |
2859 | sk_SSL_CIPHER_free(a->cipher_list); |
2860 | sk_SSL_CIPHER_free(a->cipher_list_by_id); | |
e0e920b1 | 2861 | ssl_cert_free(a->cert); |
222561fe RS |
2862 | sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free); |
2863 | sk_X509_pop_free(a->extra_certs, X509_free); | |
0f113f3e | 2864 | a->comp_methods = NULL; |
e783bae2 | 2865 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 2866 | sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); |
e783bae2 | 2867 | #endif |
edc032b5 | 2868 | #ifndef OPENSSL_NO_SRP |
0f113f3e | 2869 | SSL_CTX_SRP_CTX_free(a); |
edc032b5 | 2870 | #endif |
bdfe932d | 2871 | #ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 2872 | ENGINE_finish(a->client_cert_engine); |
ddac1974 | 2873 | #endif |
8671b898 | 2874 | |
e481f9b9 | 2875 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
2876 | OPENSSL_free(a->ext.ecpointformats); |
2877 | OPENSSL_free(a->ext.supportedgroups); | |
8671b898 | 2878 | #endif |
aff8c126 | 2879 | OPENSSL_free(a->ext.alpn); |
8671b898 | 2880 | |
16203f7b AG |
2881 | CRYPTO_THREAD_lock_free(a->lock); |
2882 | ||
0f113f3e MC |
2883 | OPENSSL_free(a); |
2884 | } | |
d02b48c6 | 2885 | |
3ae76679 | 2886 | void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) |
0f113f3e MC |
2887 | { |
2888 | ctx->default_passwd_callback = cb; | |
2889 | } | |
2890 | ||
2891 | void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) | |
2892 | { | |
2893 | ctx->default_passwd_callback_userdata = u; | |
2894 | } | |
2895 | ||
0c452abc CH |
2896 | pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) |
2897 | { | |
2898 | return ctx->default_passwd_callback; | |
2899 | } | |
2900 | ||
2901 | void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) | |
2902 | { | |
2903 | return ctx->default_passwd_callback_userdata; | |
2904 | } | |
2905 | ||
a974e64a MC |
2906 | void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb) |
2907 | { | |
2908 | s->default_passwd_callback = cb; | |
2909 | } | |
2910 | ||
2911 | void SSL_set_default_passwd_cb_userdata(SSL *s, void *u) | |
2912 | { | |
2913 | s->default_passwd_callback_userdata = u; | |
2914 | } | |
2915 | ||
0c452abc CH |
2916 | pem_password_cb *SSL_get_default_passwd_cb(SSL *s) |
2917 | { | |
2918 | return s->default_passwd_callback; | |
2919 | } | |
2920 | ||
2921 | void *SSL_get_default_passwd_cb_userdata(SSL *s) | |
2922 | { | |
2923 | return s->default_passwd_callback_userdata; | |
2924 | } | |
2925 | ||
0f113f3e MC |
2926 | void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, |
2927 | int (*cb) (X509_STORE_CTX *, void *), | |
2928 | void *arg) | |
2929 | { | |
2930 | ctx->app_verify_callback = cb; | |
2931 | ctx->app_verify_arg = arg; | |
2932 | } | |
2933 | ||
2934 | void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, | |
2935 | int (*cb) (int, X509_STORE_CTX *)) | |
2936 | { | |
2937 | ctx->verify_mode = mode; | |
2938 | ctx->default_verify_callback = cb; | |
2939 | } | |
2940 | ||
2941 | void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) | |
2942 | { | |
2943 | X509_VERIFY_PARAM_set_depth(ctx->param, depth); | |
2944 | } | |
2945 | ||
a230b26e | 2946 | void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg) |
0f113f3e MC |
2947 | { |
2948 | ssl_cert_set_cert_cb(c->cert, cb, arg); | |
2949 | } | |
2950 | ||
2951 | void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg) | |
2952 | { | |
2953 | ssl_cert_set_cert_cb(s->cert, cb, arg); | |
2954 | } | |
18d71588 | 2955 | |
2cf28d61 | 2956 | void ssl_set_masks(SSL *s) |
0f113f3e | 2957 | { |
6383d316 | 2958 | CERT *c = s->cert; |
f7d53487 | 2959 | uint32_t *pvalid = s->s3->tmp.valid_flags; |
bc71f910 | 2960 | int rsa_enc, rsa_sign, dh_tmp, dsa_sign; |
361a1191 | 2961 | unsigned long mask_k, mask_a; |
10bf4fc2 | 2962 | #ifndef OPENSSL_NO_EC |
361a1191 | 2963 | int have_ecc_cert, ecdsa_ok; |
14536c8c | 2964 | #endif |
0f113f3e MC |
2965 | if (c == NULL) |
2966 | return; | |
d02b48c6 | 2967 | |
bc36ee62 | 2968 | #ifndef OPENSSL_NO_DH |
0f113f3e | 2969 | dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto); |
d02b48c6 | 2970 | #else |
361a1191 | 2971 | dh_tmp = 0; |
d02b48c6 RE |
2972 | #endif |
2973 | ||
d0ff28f8 | 2974 | rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID; |
38e8f3cd DSH |
2975 | rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID; |
2976 | dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID; | |
14536c8c | 2977 | #ifndef OPENSSL_NO_EC |
6383d316 | 2978 | have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID; |
14536c8c | 2979 | #endif |
0f113f3e MC |
2980 | mask_k = 0; |
2981 | mask_a = 0; | |
0e1dba93 | 2982 | |
d02b48c6 | 2983 | #ifdef CIPHER_DEBUG |
b7557ccf AG |
2984 | fprintf(stderr, "dht=%d re=%d rs=%d ds=%d\n", |
2985 | dh_tmp, rsa_enc, rsa_sign, dsa_sign); | |
0f113f3e MC |
2986 | #endif |
2987 | ||
2a9b9654 | 2988 | #ifndef OPENSSL_NO_GOST |
4020c0b3 | 2989 | if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) { |
e44380a9 DB |
2990 | mask_k |= SSL_kGOST; |
2991 | mask_a |= SSL_aGOST12; | |
2992 | } | |
4020c0b3 | 2993 | if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) { |
e44380a9 DB |
2994 | mask_k |= SSL_kGOST; |
2995 | mask_a |= SSL_aGOST12; | |
2996 | } | |
4020c0b3 | 2997 | if (ssl_has_cert(s, SSL_PKEY_GOST01)) { |
0f113f3e MC |
2998 | mask_k |= SSL_kGOST; |
2999 | mask_a |= SSL_aGOST01; | |
3000 | } | |
2a9b9654 | 3001 | #endif |
0f113f3e | 3002 | |
361a1191 | 3003 | if (rsa_enc) |
0f113f3e | 3004 | mask_k |= SSL_kRSA; |
d02b48c6 | 3005 | |
0f113f3e MC |
3006 | if (dh_tmp) |
3007 | mask_k |= SSL_kDHE; | |
d02b48c6 | 3008 | |
0f113f3e MC |
3009 | if (rsa_enc || rsa_sign) { |
3010 | mask_a |= SSL_aRSA; | |
0f113f3e | 3011 | } |
d02b48c6 | 3012 | |
0f113f3e MC |
3013 | if (dsa_sign) { |
3014 | mask_a |= SSL_aDSS; | |
0f113f3e | 3015 | } |
d02b48c6 | 3016 | |
0f113f3e | 3017 | mask_a |= SSL_aNULL; |
d02b48c6 | 3018 | |
0f113f3e MC |
3019 | /* |
3020 | * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites | |
3021 | * depending on the key usage extension. | |
3022 | */ | |
14536c8c | 3023 | #ifndef OPENSSL_NO_EC |
0f113f3e | 3024 | if (have_ecc_cert) { |
a8d8e06b | 3025 | uint32_t ex_kusage; |
4020c0b3 | 3026 | ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509); |
a8d8e06b | 3027 | ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE; |
6383d316 | 3028 | if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN)) |
0f113f3e | 3029 | ecdsa_ok = 0; |
c7c46256 | 3030 | if (ecdsa_ok) |
0f113f3e | 3031 | mask_a |= SSL_aECDSA; |
0f113f3e | 3032 | } |
14536c8c | 3033 | #endif |
ea262260 | 3034 | |
10bf4fc2 | 3035 | #ifndef OPENSSL_NO_EC |
fe6ef247 | 3036 | mask_k |= SSL_kECDHE; |
ea262260 | 3037 | #endif |
ddac1974 NL |
3038 | |
3039 | #ifndef OPENSSL_NO_PSK | |
0f113f3e MC |
3040 | mask_k |= SSL_kPSK; |
3041 | mask_a |= SSL_aPSK; | |
526f94ad DSH |
3042 | if (mask_k & SSL_kRSA) |
3043 | mask_k |= SSL_kRSAPSK; | |
3044 | if (mask_k & SSL_kDHE) | |
3045 | mask_k |= SSL_kDHEPSK; | |
3046 | if (mask_k & SSL_kECDHE) | |
3047 | mask_k |= SSL_kECDHEPSK; | |
ddac1974 NL |
3048 | #endif |
3049 | ||
4d69f9e6 DSH |
3050 | s->s3->tmp.mask_k = mask_k; |
3051 | s->s3->tmp.mask_a = mask_a; | |
0f113f3e | 3052 | } |
d02b48c6 | 3053 | |
ef236ec3 DSH |
3054 | #ifndef OPENSSL_NO_EC |
3055 | ||
a2f9200f | 3056 | int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) |
0f113f3e | 3057 | { |
ce0c1f2b | 3058 | if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aECDSA) { |
0f113f3e | 3059 | /* key usage, if present, must allow signing */ |
ce0c1f2b | 3060 | if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) { |
0f113f3e MC |
3061 | SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, |
3062 | SSL_R_ECC_CERT_NOT_FOR_SIGNING); | |
3063 | return 0; | |
3064 | } | |
3065 | } | |
0f113f3e MC |
3066 | return 1; /* all checks are ok */ |
3067 | } | |
ea262260 | 3068 | |
ef236ec3 DSH |
3069 | #endif |
3070 | ||
a398f821 | 3071 | int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, |
0f113f3e MC |
3072 | size_t *serverinfo_length) |
3073 | { | |
a497cf25 | 3074 | CERT_PKEY *cpk = s->s3->tmp.cert; |
0f113f3e MC |
3075 | *serverinfo_length = 0; |
3076 | ||
a497cf25 | 3077 | if (cpk == NULL || cpk->serverinfo == NULL) |
0f113f3e MC |
3078 | return 0; |
3079 | ||
a497cf25 DSH |
3080 | *serverinfo = cpk->serverinfo; |
3081 | *serverinfo_length = cpk->serverinfo_length; | |
0f113f3e MC |
3082 | return 1; |
3083 | } | |
0f113f3e MC |
3084 | |
3085 | void ssl_update_cache(SSL *s, int mode) | |
3086 | { | |
3087 | int i; | |
3088 | ||
3089 | /* | |
3090 | * If the session_id_length is 0, we are not supposed to cache it, and it | |
3091 | * would be rather hard to do anyway :-) | |
3092 | */ | |
3093 | if (s->session->session_id_length == 0) | |
3094 | return; | |
3095 | ||
3096 | i = s->session_ctx->session_cache_mode; | |
3097 | if ((i & mode) && (!s->hit) | |
3098 | && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) | |
3099 | || SSL_CTX_add_session(s->session_ctx, s->session)) | |
3100 | && (s->session_ctx->new_session_cb != NULL)) { | |
16203f7b | 3101 | SSL_SESSION_up_ref(s->session); |
0f113f3e MC |
3102 | if (!s->session_ctx->new_session_cb(s, s->session)) |
3103 | SSL_SESSION_free(s->session); | |
3104 | } | |
3105 | ||
3106 | /* auto flush every 255 connections */ | |
3107 | if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) { | |
3108 | if ((((mode & SSL_SESS_CACHE_CLIENT) | |
3109 | ? s->session_ctx->stats.sess_connect_good | |
3110 | : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) { | |
3111 | SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL)); | |
3112 | } | |
3113 | } | |
3114 | } | |
d02b48c6 | 3115 | |
ba168244 | 3116 | const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx) |
0f113f3e MC |
3117 | { |
3118 | return ctx->method; | |
3119 | } | |
ba168244 | 3120 | |
4ebb342f | 3121 | const SSL_METHOD *SSL_get_ssl_method(SSL *s) |
0f113f3e MC |
3122 | { |
3123 | return (s->method); | |
3124 | } | |
d02b48c6 | 3125 | |
4ebb342f | 3126 | int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) |
0f113f3e | 3127 | { |
0f113f3e MC |
3128 | int ret = 1; |
3129 | ||
3130 | if (s->method != meth) { | |
919ba009 | 3131 | const SSL_METHOD *sm = s->method; |
a230b26e | 3132 | int (*hf) (SSL *) = s->handshake_func; |
0f113f3e | 3133 | |
919ba009 | 3134 | if (sm->version == meth->version) |
0f113f3e MC |
3135 | s->method = meth; |
3136 | else { | |
919ba009 | 3137 | sm->ssl_free(s); |
0f113f3e MC |
3138 | s->method = meth; |
3139 | ret = s->method->ssl_new(s); | |
3140 | } | |
3141 | ||
919ba009 | 3142 | if (hf == sm->ssl_connect) |
0f113f3e | 3143 | s->handshake_func = meth->ssl_connect; |
919ba009 | 3144 | else if (hf == sm->ssl_accept) |
0f113f3e MC |
3145 | s->handshake_func = meth->ssl_accept; |
3146 | } | |
3147 | return (ret); | |
3148 | } | |
3149 | ||
3150 | int SSL_get_error(const SSL *s, int i) | |
3151 | { | |
3152 | int reason; | |
3153 | unsigned long l; | |
3154 | BIO *bio; | |
3155 | ||
3156 | if (i > 0) | |
3157 | return (SSL_ERROR_NONE); | |
3158 | ||
3159 | /* | |
3160 | * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc, | |
3161 | * where we do encode the error | |
3162 | */ | |
3163 | if ((l = ERR_peek_error()) != 0) { | |
3164 | if (ERR_GET_LIB(l) == ERR_LIB_SYS) | |
3165 | return (SSL_ERROR_SYSCALL); | |
3166 | else | |
3167 | return (SSL_ERROR_SSL); | |
3168 | } | |
3169 | ||
8051ab2b MC |
3170 | if (SSL_want_read(s)) { |
3171 | bio = SSL_get_rbio(s); | |
3172 | if (BIO_should_read(bio)) | |
3173 | return (SSL_ERROR_WANT_READ); | |
3174 | else if (BIO_should_write(bio)) | |
3175 | /* | |
3176 | * This one doesn't make too much sense ... We never try to write | |
3177 | * to the rbio, and an application program where rbio and wbio | |
3178 | * are separate couldn't even know what it should wait for. | |
3179 | * However if we ever set s->rwstate incorrectly (so that we have | |
3180 | * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and | |
3181 | * wbio *are* the same, this test works around that bug; so it | |
3182 | * might be safer to keep it. | |
3183 | */ | |
3184 | return (SSL_ERROR_WANT_WRITE); | |
3185 | else if (BIO_should_io_special(bio)) { | |
3186 | reason = BIO_get_retry_reason(bio); | |
3187 | if (reason == BIO_RR_CONNECT) | |
3188 | return (SSL_ERROR_WANT_CONNECT); | |
3189 | else if (reason == BIO_RR_ACCEPT) | |
3190 | return (SSL_ERROR_WANT_ACCEPT); | |
3191 | else | |
3192 | return (SSL_ERROR_SYSCALL); /* unknown */ | |
0f113f3e | 3193 | } |
8051ab2b | 3194 | } |
0f113f3e | 3195 | |
8051ab2b MC |
3196 | if (SSL_want_write(s)) { |
3197 | /* | |
3198 | * Access wbio directly - in order to use the buffered bio if | |
3199 | * present | |
3200 | */ | |
3201 | bio = s->wbio; | |
3202 | if (BIO_should_write(bio)) | |
3203 | return (SSL_ERROR_WANT_WRITE); | |
3204 | else if (BIO_should_read(bio)) | |
2e7dc7cd | 3205 | /* |
8051ab2b | 3206 | * See above (SSL_want_read(s) with BIO_should_write(bio)) |
2e7dc7cd | 3207 | */ |
8051ab2b MC |
3208 | return (SSL_ERROR_WANT_READ); |
3209 | else if (BIO_should_io_special(bio)) { | |
3210 | reason = BIO_get_retry_reason(bio); | |
3211 | if (reason == BIO_RR_CONNECT) | |
3212 | return (SSL_ERROR_WANT_CONNECT); | |
3213 | else if (reason == BIO_RR_ACCEPT) | |
3214 | return (SSL_ERROR_WANT_ACCEPT); | |
3215 | else | |
3216 | return (SSL_ERROR_SYSCALL); | |
0f113f3e | 3217 | } |
07bbc92c | 3218 | } |
6b1bb98f | 3219 | if (SSL_want_x509_lookup(s)) |
8051ab2b | 3220 | return (SSL_ERROR_WANT_X509_LOOKUP); |
6b1bb98f | 3221 | if (SSL_want_async(s)) |
8051ab2b | 3222 | return SSL_ERROR_WANT_ASYNC; |
6b1bb98f | 3223 | if (SSL_want_async_job(s)) |
8051ab2b | 3224 | return SSL_ERROR_WANT_ASYNC_JOB; |
6b1bb98f BK |
3225 | if (SSL_want_early(s)) |
3226 | return SSL_ERROR_WANT_EARLY; | |
8051ab2b MC |
3227 | |
3228 | if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && | |
3229 | (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) | |
3230 | return (SSL_ERROR_ZERO_RETURN); | |
3231 | ||
0f113f3e MC |
3232 | return (SSL_ERROR_SYSCALL); |
3233 | } | |
d02b48c6 | 3234 | |
add2f5ca MC |
3235 | static int ssl_do_handshake_intern(void *vargs) |
3236 | { | |
3237 | struct ssl_async_args *args; | |
3238 | SSL *s; | |
3239 | ||
3240 | args = (struct ssl_async_args *)vargs; | |
3241 | s = args->s; | |
3242 | ||
3243 | return s->handshake_func(s); | |
3244 | } | |
3245 | ||
4f43d0e7 | 3246 | int SSL_do_handshake(SSL *s) |
0f113f3e MC |
3247 | { |
3248 | int ret = 1; | |
3249 | ||
3250 | if (s->handshake_func == NULL) { | |
3251 | SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET); | |
add2f5ca | 3252 | return -1; |
0f113f3e MC |
3253 | } |
3254 | ||
3eaa4170 MC |
3255 | if (s->early_data_state == SSL_EARLY_DATA_WRITE_RETRY) { |
3256 | int edfin; | |
bc908c67 | 3257 | |
3eaa4170 MC |
3258 | edfin = ssl_write_early_finish(s); |
3259 | if (edfin <= 0) | |
3260 | return edfin; | |
f7e393be | 3261 | } |
3eaa4170 | 3262 | ossl_statem_check_finish_init(s, -1); |
49e7fe12 | 3263 | |
c7f47786 | 3264 | s->method->ssl_renegotiate_check(s, 0); |
0f113f3e MC |
3265 | |
3266 | if (SSL_in_init(s) || SSL_in_before(s)) { | |
e8aa8b6c | 3267 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca MC |
3268 | struct ssl_async_args args; |
3269 | ||
3270 | args.s = s; | |
3271 | ||
7fecbf6f | 3272 | ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern); |
add2f5ca MC |
3273 | } else { |
3274 | ret = s->handshake_func(s); | |
3275 | } | |
0f113f3e | 3276 | } |
add2f5ca | 3277 | return ret; |
0f113f3e MC |
3278 | } |
3279 | ||
4f43d0e7 | 3280 | void SSL_set_accept_state(SSL *s) |
0f113f3e MC |
3281 | { |
3282 | s->server = 1; | |
3283 | s->shutdown = 0; | |
fe3a3291 | 3284 | ossl_statem_clear(s); |
0f113f3e | 3285 | s->handshake_func = s->method->ssl_accept; |
d31fb0b5 | 3286 | clear_ciphers(s); |
0f113f3e | 3287 | } |
d02b48c6 | 3288 | |
4f43d0e7 | 3289 | void SSL_set_connect_state(SSL *s) |
0f113f3e MC |
3290 | { |
3291 | s->server = 0; | |
3292 | s->shutdown = 0; | |
fe3a3291 | 3293 | ossl_statem_clear(s); |
0f113f3e | 3294 | s->handshake_func = s->method->ssl_connect; |
d31fb0b5 | 3295 | clear_ciphers(s); |
0f113f3e | 3296 | } |
d02b48c6 | 3297 | |
4f43d0e7 | 3298 | int ssl_undefined_function(SSL *s) |
0f113f3e MC |
3299 | { |
3300 | SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3301 | return (0); | |
3302 | } | |
d02b48c6 | 3303 | |
41a15c4f | 3304 | int ssl_undefined_void_function(void) |
0f113f3e MC |
3305 | { |
3306 | SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION, | |
3307 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3308 | return (0); | |
3309 | } | |
41a15c4f | 3310 | |
0821bcd4 | 3311 | int ssl_undefined_const_function(const SSL *s) |
0f113f3e | 3312 | { |
0f113f3e MC |
3313 | return (0); |
3314 | } | |
0821bcd4 | 3315 | |
2b8fa1d5 | 3316 | const SSL_METHOD *ssl_bad_method(int ver) |
0f113f3e MC |
3317 | { |
3318 | SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3319 | return (NULL); | |
3320 | } | |
d02b48c6 | 3321 | |
3eb2aff4 | 3322 | const char *ssl_protocol_to_string(int version) |
7d650072 | 3323 | { |
2abacef1 MC |
3324 | switch(version) |
3325 | { | |
3326 | case TLS1_3_VERSION: | |
582a17d6 | 3327 | return "TLSv1.3"; |
2abacef1 MC |
3328 | |
3329 | case TLS1_2_VERSION: | |
7d650072 | 3330 | return "TLSv1.2"; |
2abacef1 MC |
3331 | |
3332 | case TLS1_1_VERSION: | |
7d650072 | 3333 | return "TLSv1.1"; |
2abacef1 MC |
3334 | |
3335 | case TLS1_VERSION: | |
ee3a6c64 | 3336 | return "TLSv1"; |
2abacef1 MC |
3337 | |
3338 | case SSL3_VERSION: | |
7d650072 | 3339 | return "SSLv3"; |
2abacef1 MC |
3340 | |
3341 | case DTLS1_BAD_VER: | |
7d650072 | 3342 | return "DTLSv0.9"; |
2abacef1 MC |
3343 | |
3344 | case DTLS1_VERSION: | |
7d650072 | 3345 | return "DTLSv1"; |
2abacef1 MC |
3346 | |
3347 | case DTLS1_2_VERSION: | |
7d650072 | 3348 | return "DTLSv1.2"; |
2abacef1 MC |
3349 | |
3350 | default: | |
3351 | return "unknown"; | |
3352 | } | |
0f113f3e | 3353 | } |
d02b48c6 | 3354 | |
7d650072 KR |
3355 | const char *SSL_get_version(const SSL *s) |
3356 | { | |
3eb2aff4 | 3357 | return ssl_protocol_to_string(s->version); |
7d650072 KR |
3358 | } |
3359 | ||
4f43d0e7 | 3360 | SSL *SSL_dup(SSL *s) |
0f113f3e MC |
3361 | { |
3362 | STACK_OF(X509_NAME) *sk; | |
3363 | X509_NAME *xn; | |
3364 | SSL *ret; | |
3365 | int i; | |
3366 | ||
919ba009 VD |
3367 | /* If we're not quiescent, just up_ref! */ |
3368 | if (!SSL_in_init(s) || !SSL_in_before(s)) { | |
2f545ae4 | 3369 | CRYPTO_UP_REF(&s->references, &i, s->lock); |
919ba009 VD |
3370 | return s; |
3371 | } | |
3372 | ||
3373 | /* | |
3374 | * Otherwise, copy configuration state, and session if set. | |
3375 | */ | |
0f113f3e MC |
3376 | if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) |
3377 | return (NULL); | |
3378 | ||
0f113f3e | 3379 | if (s->session != NULL) { |
919ba009 VD |
3380 | /* |
3381 | * Arranges to share the same session via up_ref. This "copies" | |
3382 | * session-id, SSL_METHOD, sid_ctx, and 'cert' | |
3383 | */ | |
61986d32 | 3384 | if (!SSL_copy_session_id(ret, s)) |
17dd65e6 | 3385 | goto err; |
0f113f3e MC |
3386 | } else { |
3387 | /* | |
3388 | * No session has been established yet, so we have to expect that | |
3389 | * s->cert or ret->cert will be changed later -- they should not both | |
3390 | * point to the same object, and thus we can't use | |
3391 | * SSL_copy_session_id. | |
3392 | */ | |
919ba009 VD |
3393 | if (!SSL_set_ssl_method(ret, s->method)) |
3394 | goto err; | |
0f113f3e MC |
3395 | |
3396 | if (s->cert != NULL) { | |
e0e920b1 | 3397 | ssl_cert_free(ret->cert); |
0f113f3e MC |
3398 | ret->cert = ssl_cert_dup(s->cert); |
3399 | if (ret->cert == NULL) | |
3400 | goto err; | |
3401 | } | |
3402 | ||
348240c6 MC |
3403 | if (!SSL_set_session_id_context(ret, s->sid_ctx, |
3404 | (int)s->sid_ctx_length)) | |
69f68237 | 3405 | goto err; |
0f113f3e MC |
3406 | } |
3407 | ||
9f6b22b8 VD |
3408 | if (!ssl_dane_dup(ret, s)) |
3409 | goto err; | |
919ba009 | 3410 | ret->version = s->version; |
0f113f3e MC |
3411 | ret->options = s->options; |
3412 | ret->mode = s->mode; | |
3413 | SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); | |
3414 | SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); | |
3415 | ret->msg_callback = s->msg_callback; | |
3416 | ret->msg_callback_arg = s->msg_callback_arg; | |
3417 | SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s)); | |
3418 | SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); | |
3419 | ret->generate_session_id = s->generate_session_id; | |
3420 | ||
3421 | SSL_set_info_callback(ret, SSL_get_info_callback(s)); | |
3422 | ||
0f113f3e MC |
3423 | /* copy app data, a little dangerous perhaps */ |
3424 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) | |
3425 | goto err; | |
3426 | ||
3427 | /* setup rbio, and wbio */ | |
3428 | if (s->rbio != NULL) { | |
3429 | if (!BIO_dup_state(s->rbio, (char *)&ret->rbio)) | |
3430 | goto err; | |
3431 | } | |
3432 | if (s->wbio != NULL) { | |
3433 | if (s->wbio != s->rbio) { | |
3434 | if (!BIO_dup_state(s->wbio, (char *)&ret->wbio)) | |
3435 | goto err; | |
65e2d672 MC |
3436 | } else { |
3437 | BIO_up_ref(ret->rbio); | |
0f113f3e | 3438 | ret->wbio = ret->rbio; |
65e2d672 | 3439 | } |
0f113f3e | 3440 | } |
919ba009 | 3441 | |
0f113f3e | 3442 | ret->server = s->server; |
919ba009 VD |
3443 | if (s->handshake_func) { |
3444 | if (s->server) | |
3445 | SSL_set_accept_state(ret); | |
3446 | else | |
3447 | SSL_set_connect_state(ret); | |
3448 | } | |
0f113f3e | 3449 | ret->shutdown = s->shutdown; |
0f113f3e MC |
3450 | ret->hit = s->hit; |
3451 | ||
a974e64a MC |
3452 | ret->default_passwd_callback = s->default_passwd_callback; |
3453 | ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata; | |
3454 | ||
0f113f3e MC |
3455 | X509_VERIFY_PARAM_inherit(ret->param, s->param); |
3456 | ||
3457 | /* dup the cipher_list and cipher_list_by_id stacks */ | |
3458 | if (s->cipher_list != NULL) { | |
3459 | if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) | |
3460 | goto err; | |
3461 | } | |
3462 | if (s->cipher_list_by_id != NULL) | |
3463 | if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id)) | |
3464 | == NULL) | |
3465 | goto err; | |
3466 | ||
3467 | /* Dup the client_CA list */ | |
3468 | if (s->client_CA != NULL) { | |
3469 | if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL) | |
3470 | goto err; | |
3471 | ret->client_CA = sk; | |
3472 | for (i = 0; i < sk_X509_NAME_num(sk); i++) { | |
3473 | xn = sk_X509_NAME_value(sk, i); | |
3474 | if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) { | |
3475 | X509_NAME_free(xn); | |
3476 | goto err; | |
3477 | } | |
3478 | } | |
3479 | } | |
66696478 | 3480 | return ret; |
0f113f3e | 3481 | |
0f113f3e | 3482 | err: |
66696478 RS |
3483 | SSL_free(ret); |
3484 | return NULL; | |
0f113f3e | 3485 | } |
d02b48c6 | 3486 | |
4f43d0e7 | 3487 | void ssl_clear_cipher_ctx(SSL *s) |
0f113f3e MC |
3488 | { |
3489 | if (s->enc_read_ctx != NULL) { | |
846ec07d | 3490 | EVP_CIPHER_CTX_free(s->enc_read_ctx); |
0f113f3e MC |
3491 | s->enc_read_ctx = NULL; |
3492 | } | |
3493 | if (s->enc_write_ctx != NULL) { | |
846ec07d | 3494 | EVP_CIPHER_CTX_free(s->enc_write_ctx); |
0f113f3e MC |
3495 | s->enc_write_ctx = NULL; |
3496 | } | |
09b6c2ef | 3497 | #ifndef OPENSSL_NO_COMP |
efa7dd64 RS |
3498 | COMP_CTX_free(s->expand); |
3499 | s->expand = NULL; | |
3500 | COMP_CTX_free(s->compress); | |
3501 | s->compress = NULL; | |
0f113f3e MC |
3502 | #endif |
3503 | } | |
d02b48c6 | 3504 | |
0821bcd4 | 3505 | X509 *SSL_get_certificate(const SSL *s) |
0f113f3e MC |
3506 | { |
3507 | if (s->cert != NULL) | |
3508 | return (s->cert->key->x509); | |
3509 | else | |
3510 | return (NULL); | |
3511 | } | |
d02b48c6 | 3512 | |
a25f9adc | 3513 | EVP_PKEY *SSL_get_privatekey(const SSL *s) |
0f113f3e MC |
3514 | { |
3515 | if (s->cert != NULL) | |
3516 | return (s->cert->key->privatekey); | |
3517 | else | |
3518 | return (NULL); | |
3519 | } | |
d02b48c6 | 3520 | |
a25f9adc | 3521 | X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx) |
0f113f3e MC |
3522 | { |
3523 | if (ctx->cert != NULL) | |
3524 | return ctx->cert->key->x509; | |
3525 | else | |
3526 | return NULL; | |
3527 | } | |
a25f9adc DSH |
3528 | |
3529 | EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx) | |
0f113f3e MC |
3530 | { |
3531 | if (ctx->cert != NULL) | |
3532 | return ctx->cert->key->privatekey; | |
3533 | else | |
3534 | return NULL; | |
3535 | } | |
a25f9adc | 3536 | |
babb3798 | 3537 | const SSL_CIPHER *SSL_get_current_cipher(const SSL *s) |
0f113f3e MC |
3538 | { |
3539 | if ((s->session != NULL) && (s->session->cipher != NULL)) | |
3540 | return (s->session->cipher); | |
3541 | return (NULL); | |
3542 | } | |
3543 | ||
377dcdba | 3544 | const COMP_METHOD *SSL_get_current_compression(SSL *s) |
0f113f3e | 3545 | { |
9a555706 RS |
3546 | #ifndef OPENSSL_NO_COMP |
3547 | return s->compress ? COMP_CTX_get_method(s->compress) : NULL; | |
3548 | #else | |
3549 | return NULL; | |
3550 | #endif | |
0f113f3e | 3551 | } |
377dcdba RL |
3552 | |
3553 | const COMP_METHOD *SSL_get_current_expansion(SSL *s) | |
0f113f3e | 3554 | { |
9a555706 RS |
3555 | #ifndef OPENSSL_NO_COMP |
3556 | return s->expand ? COMP_CTX_get_method(s->expand) : NULL; | |
3557 | #else | |
3558 | return NULL; | |
0f113f3e | 3559 | #endif |
9a555706 | 3560 | } |
0f113f3e | 3561 | |
46417569 | 3562 | int ssl_init_wbio_buffer(SSL *s) |
0f113f3e MC |
3563 | { |
3564 | BIO *bbio; | |
3565 | ||
2e7dc7cd MC |
3566 | if (s->bbio != NULL) { |
3567 | /* Already buffered. */ | |
3568 | return 1; | |
0f113f3e | 3569 | } |
46417569 | 3570 | |
2e7dc7cd MC |
3571 | bbio = BIO_new(BIO_f_buffer()); |
3572 | if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) { | |
3573 | BIO_free(bbio); | |
0f113f3e | 3574 | SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB); |
46417569 | 3575 | return 0; |
0f113f3e | 3576 | } |
2e7dc7cd MC |
3577 | s->bbio = bbio; |
3578 | s->wbio = BIO_push(bbio, s->wbio); | |
46417569 MC |
3579 | |
3580 | return 1; | |
0f113f3e | 3581 | } |
413c4f45 | 3582 | |
4f43d0e7 | 3583 | void ssl_free_wbio_buffer(SSL *s) |
0f113f3e | 3584 | { |
62adbcee | 3585 | /* callers ensure s is never null */ |
0f113f3e MC |
3586 | if (s->bbio == NULL) |
3587 | return; | |
3588 | ||
2e7dc7cd MC |
3589 | s->wbio = BIO_pop(s->wbio); |
3590 | assert(s->wbio != NULL); | |
0f113f3e MC |
3591 | BIO_free(s->bbio); |
3592 | s->bbio = NULL; | |
3593 | } | |
3594 | ||
3595 | void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) | |
3596 | { | |
3597 | ctx->quiet_shutdown = mode; | |
3598 | } | |
58964a49 | 3599 | |
0821bcd4 | 3600 | int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) |
0f113f3e MC |
3601 | { |
3602 | return (ctx->quiet_shutdown); | |
3603 | } | |
58964a49 | 3604 | |
0f113f3e MC |
3605 | void SSL_set_quiet_shutdown(SSL *s, int mode) |
3606 | { | |
3607 | s->quiet_shutdown = mode; | |
3608 | } | |
58964a49 | 3609 | |
0821bcd4 | 3610 | int SSL_get_quiet_shutdown(const SSL *s) |
0f113f3e MC |
3611 | { |
3612 | return (s->quiet_shutdown); | |
3613 | } | |
58964a49 | 3614 | |
0f113f3e MC |
3615 | void SSL_set_shutdown(SSL *s, int mode) |
3616 | { | |
3617 | s->shutdown = mode; | |
3618 | } | |
58964a49 | 3619 | |
0821bcd4 | 3620 | int SSL_get_shutdown(const SSL *s) |
0f113f3e | 3621 | { |
6546e9b2 | 3622 | return s->shutdown; |
0f113f3e | 3623 | } |
58964a49 | 3624 | |
0821bcd4 | 3625 | int SSL_version(const SSL *s) |
0f113f3e | 3626 | { |
6546e9b2 AG |
3627 | return s->version; |
3628 | } | |
3629 | ||
3630 | int SSL_client_version(const SSL *s) | |
3631 | { | |
3632 | return s->client_version; | |
0f113f3e | 3633 | } |
58964a49 | 3634 | |
0821bcd4 | 3635 | SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) |
0f113f3e | 3636 | { |
6546e9b2 | 3637 | return ssl->ctx; |
0f113f3e MC |
3638 | } |
3639 | ||
3640 | SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx) | |
3641 | { | |
24a0d393 | 3642 | CERT *new_cert; |
0f113f3e MC |
3643 | if (ssl->ctx == ctx) |
3644 | return ssl->ctx; | |
0f113f3e | 3645 | if (ctx == NULL) |
222da979 | 3646 | ctx = ssl->session_ctx; |
24a0d393 KR |
3647 | new_cert = ssl_cert_dup(ctx->cert); |
3648 | if (new_cert == NULL) { | |
3649 | return NULL; | |
0f113f3e | 3650 | } |
24a0d393 KR |
3651 | ssl_cert_free(ssl->cert); |
3652 | ssl->cert = new_cert; | |
0f113f3e MC |
3653 | |
3654 | /* | |
3655 | * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH), | |
3656 | * so setter APIs must prevent invalid lengths from entering the system. | |
3657 | */ | |
3658 | OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx)); | |
3659 | ||
3660 | /* | |
3661 | * If the session ID context matches that of the parent SSL_CTX, | |
3662 | * inherit it from the new SSL_CTX as well. If however the context does | |
3663 | * not match (i.e., it was set per-ssl with SSL_set_session_id_context), | |
3664 | * leave it unchanged. | |
3665 | */ | |
3666 | if ((ssl->ctx != NULL) && | |
3667 | (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) && | |
3668 | (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) { | |
3669 | ssl->sid_ctx_length = ctx->sid_ctx_length; | |
3670 | memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx)); | |
3671 | } | |
3672 | ||
16203f7b | 3673 | SSL_CTX_up_ref(ctx); |
a230b26e | 3674 | SSL_CTX_free(ssl->ctx); /* decrement reference count */ |
0f113f3e MC |
3675 | ssl->ctx = ctx; |
3676 | ||
16203f7b | 3677 | return ssl->ctx; |
0f113f3e | 3678 | } |
ed3883d2 | 3679 | |
4f43d0e7 | 3680 | int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) |
0f113f3e MC |
3681 | { |
3682 | return (X509_STORE_set_default_paths(ctx->cert_store)); | |
3683 | } | |
58964a49 | 3684 | |
d84a7b20 MC |
3685 | int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx) |
3686 | { | |
3687 | X509_LOOKUP *lookup; | |
3688 | ||
3689 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir()); | |
3690 | if (lookup == NULL) | |
3691 | return 0; | |
3692 | X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT); | |
3693 | ||
3694 | /* Clear any errors if the default directory does not exist */ | |
3695 | ERR_clear_error(); | |
3696 | ||
3697 | return 1; | |
3698 | } | |
3699 | ||
3700 | int SSL_CTX_set_default_verify_file(SSL_CTX *ctx) | |
3701 | { | |
3702 | X509_LOOKUP *lookup; | |
3703 | ||
3704 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file()); | |
3705 | if (lookup == NULL) | |
3706 | return 0; | |
3707 | ||
3708 | X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT); | |
3709 | ||
3710 | /* Clear any errors if the default file does not exist */ | |
3711 | ERR_clear_error(); | |
3712 | ||
3713 | return 1; | |
3714 | } | |
3715 | ||
303c0028 | 3716 | int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, |
0f113f3e MC |
3717 | const char *CApath) |
3718 | { | |
3719 | return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); | |
3720 | } | |
58964a49 | 3721 | |
45d87a1f | 3722 | void SSL_set_info_callback(SSL *ssl, |
0f113f3e MC |
3723 | void (*cb) (const SSL *ssl, int type, int val)) |
3724 | { | |
3725 | ssl->info_callback = cb; | |
3726 | } | |
3727 | ||
3728 | /* | |
3729 | * One compiler (Diab DCC) doesn't like argument names in returned function | |
3730 | * pointer. | |
3731 | */ | |
3732 | void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ , | |
3733 | int /* type */ , | |
3734 | int /* val */ ) { | |
3735 | return ssl->info_callback; | |
3736 | } | |
58964a49 | 3737 | |
0f113f3e MC |
3738 | void SSL_set_verify_result(SSL *ssl, long arg) |
3739 | { | |
3740 | ssl->verify_result = arg; | |
3741 | } | |
58964a49 | 3742 | |
0821bcd4 | 3743 | long SSL_get_verify_result(const SSL *ssl) |
0f113f3e MC |
3744 | { |
3745 | return (ssl->verify_result); | |
3746 | } | |
3747 | ||
d9f1c639 | 3748 | size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 3749 | { |
6b8f5d0d | 3750 | if (outlen == 0) |
858618e7 NM |
3751 | return sizeof(ssl->s3->client_random); |
3752 | if (outlen > sizeof(ssl->s3->client_random)) | |
3753 | outlen = sizeof(ssl->s3->client_random); | |
3754 | memcpy(out, ssl->s3->client_random, outlen); | |
d9f1c639 | 3755 | return outlen; |
858618e7 NM |
3756 | } |
3757 | ||
d9f1c639 | 3758 | size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 3759 | { |
6b8f5d0d | 3760 | if (outlen == 0) |
858618e7 NM |
3761 | return sizeof(ssl->s3->server_random); |
3762 | if (outlen > sizeof(ssl->s3->server_random)) | |
3763 | outlen = sizeof(ssl->s3->server_random); | |
3764 | memcpy(out, ssl->s3->server_random, outlen); | |
d9f1c639 | 3765 | return outlen; |
858618e7 NM |
3766 | } |
3767 | ||
d9f1c639 | 3768 | size_t SSL_SESSION_get_master_key(const SSL_SESSION *session, |
a230b26e | 3769 | unsigned char *out, size_t outlen) |
858618e7 | 3770 | { |
d9f1c639 MC |
3771 | if (outlen == 0) |
3772 | return session->master_key_length; | |
8c1a5343 | 3773 | if (outlen > session->master_key_length) |
858618e7 NM |
3774 | outlen = session->master_key_length; |
3775 | memcpy(out, session->master_key, outlen); | |
d9f1c639 | 3776 | return outlen; |
858618e7 NM |
3777 | } |
3778 | ||
0f113f3e MC |
3779 | int SSL_set_ex_data(SSL *s, int idx, void *arg) |
3780 | { | |
3781 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | |
3782 | } | |
3783 | ||
3784 | void *SSL_get_ex_data(const SSL *s, int idx) | |
3785 | { | |
3786 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | |
3787 | } | |
3788 | ||
0f113f3e MC |
3789 | int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) |
3790 | { | |
3791 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | |
3792 | } | |
3793 | ||
3794 | void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) | |
3795 | { | |
3796 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | |
3797 | } | |
58964a49 | 3798 | |
0821bcd4 | 3799 | X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) |
0f113f3e MC |
3800 | { |
3801 | return (ctx->cert_store); | |
3802 | } | |
413c4f45 | 3803 | |
0f113f3e MC |
3804 | void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) |
3805 | { | |
222561fe | 3806 | X509_STORE_free(ctx->cert_store); |
0f113f3e MC |
3807 | ctx->cert_store = store; |
3808 | } | |
413c4f45 | 3809 | |
b50052db TS |
3810 | void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store) |
3811 | { | |
3812 | if (store != NULL) | |
3813 | X509_STORE_up_ref(store); | |
3814 | SSL_CTX_set_cert_store(ctx, store); | |
3815 | } | |
3816 | ||
0821bcd4 | 3817 | int SSL_want(const SSL *s) |
0f113f3e MC |
3818 | { |
3819 | return (s->rwstate); | |
3820 | } | |
413c4f45 | 3821 | |
0f113f3e | 3822 | /** |
4f43d0e7 BL |
3823 | * \brief Set the callback for generating temporary DH keys. |
3824 | * \param ctx the SSL context. | |
3825 | * \param dh the callback | |
3826 | */ | |
3827 | ||
bc36ee62 | 3828 | #ifndef OPENSSL_NO_DH |
0f113f3e MC |
3829 | void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, |
3830 | DH *(*dh) (SSL *ssl, int is_export, | |
3831 | int keylength)) | |
3832 | { | |
3833 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3834 | } | |
f8c3c05d | 3835 | |
0f113f3e MC |
3836 | void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export, |
3837 | int keylength)) | |
3838 | { | |
3839 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3840 | } | |
79df9d62 | 3841 | #endif |
15d21c2d | 3842 | |
ddac1974 NL |
3843 | #ifndef OPENSSL_NO_PSK |
3844 | int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) | |
0f113f3e MC |
3845 | { |
3846 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { | |
a230b26e | 3847 | SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); |
0f113f3e MC |
3848 | return 0; |
3849 | } | |
df6da24b | 3850 | OPENSSL_free(ctx->cert->psk_identity_hint); |
0f113f3e | 3851 | if (identity_hint != NULL) { |
7644a9ae | 3852 | ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 3853 | if (ctx->cert->psk_identity_hint == NULL) |
0f113f3e MC |
3854 | return 0; |
3855 | } else | |
df6da24b | 3856 | ctx->cert->psk_identity_hint = NULL; |
0f113f3e MC |
3857 | return 1; |
3858 | } | |
ddac1974 NL |
3859 | |
3860 | int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) | |
0f113f3e MC |
3861 | { |
3862 | if (s == NULL) | |
3863 | return 0; | |
3864 | ||
0f113f3e MC |
3865 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { |
3866 | SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); | |
3867 | return 0; | |
3868 | } | |
df6da24b | 3869 | OPENSSL_free(s->cert->psk_identity_hint); |
0f113f3e | 3870 | if (identity_hint != NULL) { |
7644a9ae | 3871 | s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 3872 | if (s->cert->psk_identity_hint == NULL) |
0f113f3e MC |
3873 | return 0; |
3874 | } else | |
df6da24b | 3875 | s->cert->psk_identity_hint = NULL; |
0f113f3e MC |
3876 | return 1; |
3877 | } | |
ddac1974 NL |
3878 | |
3879 | const char *SSL_get_psk_identity_hint(const SSL *s) | |
0f113f3e MC |
3880 | { |
3881 | if (s == NULL || s->session == NULL) | |
3882 | return NULL; | |
3883 | return (s->session->psk_identity_hint); | |
3884 | } | |
ddac1974 NL |
3885 | |
3886 | const char *SSL_get_psk_identity(const SSL *s) | |
0f113f3e MC |
3887 | { |
3888 | if (s == NULL || s->session == NULL) | |
3889 | return NULL; | |
3890 | return (s->session->psk_identity); | |
3891 | } | |
7806f3dd | 3892 | |
8cbfcc70 | 3893 | void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb) |
0f113f3e MC |
3894 | { |
3895 | s->psk_client_callback = cb; | |
3896 | } | |
7806f3dd | 3897 | |
8cbfcc70 | 3898 | void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb) |
0f113f3e MC |
3899 | { |
3900 | ctx->psk_client_callback = cb; | |
3901 | } | |
7806f3dd | 3902 | |
8cbfcc70 | 3903 | void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb) |
0f113f3e MC |
3904 | { |
3905 | s->psk_server_callback = cb; | |
3906 | } | |
7806f3dd | 3907 | |
8cbfcc70 | 3908 | void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb) |
0f113f3e MC |
3909 | { |
3910 | ctx->psk_server_callback = cb; | |
3911 | } | |
3912 | #endif | |
3913 | ||
3914 | void SSL_CTX_set_msg_callback(SSL_CTX *ctx, | |
3915 | void (*cb) (int write_p, int version, | |
3916 | int content_type, const void *buf, | |
3917 | size_t len, SSL *ssl, void *arg)) | |
3918 | { | |
3919 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
3920 | } | |
3921 | ||
3922 | void SSL_set_msg_callback(SSL *ssl, | |
3923 | void (*cb) (int write_p, int version, | |
3924 | int content_type, const void *buf, | |
3925 | size_t len, SSL *ssl, void *arg)) | |
3926 | { | |
3927 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
3928 | } | |
a661b653 | 3929 | |
7c2d4fee | 3930 | void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, |
0f113f3e MC |
3931 | int (*cb) (SSL *ssl, |
3932 | int | |
3933 | is_forward_secure)) | |
3934 | { | |
3935 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
3936 | (void (*)(void))cb); | |
3937 | } | |
3938 | ||
7c2d4fee | 3939 | void SSL_set_not_resumable_session_callback(SSL *ssl, |
0f113f3e MC |
3940 | int (*cb) (SSL *ssl, |
3941 | int is_forward_secure)) | |
3942 | { | |
3943 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
3944 | (void (*)(void))cb); | |
3945 | } | |
3946 | ||
3947 | /* | |
3948 | * Allocates new EVP_MD_CTX and sets pointer to it into given pointer | |
8483a003 | 3949 | * variable, freeing EVP_MD_CTX previously stored in that variable, if any. |
48722ff5 F |
3950 | * If EVP_MD pointer is passed, initializes ctx with this md. |
3951 | * Returns the newly allocated ctx; | |
8671b898 | 3952 | */ |
b948e2c5 | 3953 | |
0f113f3e | 3954 | EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md) |
b948e2c5 | 3955 | { |
0f113f3e | 3956 | ssl_clear_hash_ctx(hash); |
bfb0641f | 3957 | *hash = EVP_MD_CTX_new(); |
5f3d93e4 | 3958 | if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) { |
bfb0641f | 3959 | EVP_MD_CTX_free(*hash); |
5f3d93e4 MC |
3960 | *hash = NULL; |
3961 | return NULL; | |
3962 | } | |
0f113f3e | 3963 | return *hash; |
b948e2c5 | 3964 | } |
0f113f3e MC |
3965 | |
3966 | void ssl_clear_hash_ctx(EVP_MD_CTX **hash) | |
b948e2c5 DSH |
3967 | { |
3968 | ||
0d9824c1 | 3969 | EVP_MD_CTX_free(*hash); |
0f113f3e | 3970 | *hash = NULL; |
b948e2c5 | 3971 | } |
a661b653 | 3972 | |
48fbcbac | 3973 | /* Retrieve handshake hashes */ |
8c1a5343 MC |
3974 | int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen, |
3975 | size_t *hashlen) | |
48fbcbac | 3976 | { |
6e59a892 | 3977 | EVP_MD_CTX *ctx = NULL; |
28ba2541 | 3978 | EVP_MD_CTX *hdgst = s->s3->handshake_dgst; |
8c1a5343 MC |
3979 | int hashleni = EVP_MD_CTX_size(hdgst); |
3980 | int ret = 0; | |
3981 | ||
3982 | if (hashleni < 0 || (size_t)hashleni > outlen) | |
28ba2541 | 3983 | goto err; |
8c1a5343 | 3984 | |
bfb0641f | 3985 | ctx = EVP_MD_CTX_new(); |
8c1a5343 | 3986 | if (ctx == NULL) |
6e59a892 | 3987 | goto err; |
8c1a5343 | 3988 | |
6e59a892 RL |
3989 | if (!EVP_MD_CTX_copy_ex(ctx, hdgst) |
3990 | || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) | |
8c1a5343 MC |
3991 | goto err; |
3992 | ||
3993 | *hashlen = hashleni; | |
3994 | ||
3995 | ret = 1; | |
48fbcbac | 3996 | err: |
bfb0641f | 3997 | EVP_MD_CTX_free(ctx); |
48fbcbac DSH |
3998 | return ret; |
3999 | } | |
4000 | ||
b577fd0b | 4001 | int SSL_session_reused(SSL *s) |
0f113f3e MC |
4002 | { |
4003 | return s->hit; | |
4004 | } | |
08557cf2 | 4005 | |
87adf1fa | 4006 | int SSL_is_server(SSL *s) |
0f113f3e MC |
4007 | { |
4008 | return s->server; | |
4009 | } | |
87adf1fa | 4010 | |
47153c72 RS |
4011 | #if OPENSSL_API_COMPAT < 0x10100000L |
4012 | void SSL_set_debug(SSL *s, int debug) | |
4013 | { | |
4014 | /* Old function was do-nothing anyway... */ | |
4015 | (void)s; | |
4016 | (void)debug; | |
4017 | } | |
4018 | #endif | |
4019 | ||
b362ccab | 4020 | void SSL_set_security_level(SSL *s, int level) |
0f113f3e MC |
4021 | { |
4022 | s->cert->sec_level = level; | |
4023 | } | |
b362ccab DSH |
4024 | |
4025 | int SSL_get_security_level(const SSL *s) | |
0f113f3e MC |
4026 | { |
4027 | return s->cert->sec_level; | |
4028 | } | |
b362ccab | 4029 | |
0f113f3e | 4030 | void SSL_set_security_callback(SSL *s, |
a230b26e EK |
4031 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
4032 | int op, int bits, int nid, | |
4033 | void *other, void *ex)) | |
0f113f3e MC |
4034 | { |
4035 | s->cert->sec_cb = cb; | |
4036 | } | |
b362ccab | 4037 | |
a230b26e EK |
4038 | int (*SSL_get_security_callback(const SSL *s)) (const SSL *s, |
4039 | const SSL_CTX *ctx, int op, | |
4040 | int bits, int nid, void *other, | |
4041 | void *ex) { | |
0f113f3e MC |
4042 | return s->cert->sec_cb; |
4043 | } | |
b362ccab DSH |
4044 | |
4045 | void SSL_set0_security_ex_data(SSL *s, void *ex) | |
0f113f3e MC |
4046 | { |
4047 | s->cert->sec_ex = ex; | |
4048 | } | |
b362ccab DSH |
4049 | |
4050 | void *SSL_get0_security_ex_data(const SSL *s) | |
0f113f3e MC |
4051 | { |
4052 | return s->cert->sec_ex; | |
4053 | } | |
b362ccab DSH |
4054 | |
4055 | void SSL_CTX_set_security_level(SSL_CTX *ctx, int level) | |
0f113f3e MC |
4056 | { |
4057 | ctx->cert->sec_level = level; | |
4058 | } | |
b362ccab DSH |
4059 | |
4060 | int SSL_CTX_get_security_level(const SSL_CTX *ctx) | |
0f113f3e MC |
4061 | { |
4062 | return ctx->cert->sec_level; | |
4063 | } | |
b362ccab | 4064 | |
0f113f3e | 4065 | void SSL_CTX_set_security_callback(SSL_CTX *ctx, |
a230b26e EK |
4066 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
4067 | int op, int bits, int nid, | |
4068 | void *other, void *ex)) | |
0f113f3e MC |
4069 | { |
4070 | ctx->cert->sec_cb = cb; | |
4071 | } | |
b362ccab | 4072 | |
e4646a89 KR |
4073 | int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s, |
4074 | const SSL_CTX *ctx, | |
0f113f3e MC |
4075 | int op, int bits, |
4076 | int nid, | |
4077 | void *other, | |
4078 | void *ex) { | |
4079 | return ctx->cert->sec_cb; | |
4080 | } | |
b362ccab DSH |
4081 | |
4082 | void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex) | |
0f113f3e MC |
4083 | { |
4084 | ctx->cert->sec_ex = ex; | |
4085 | } | |
b362ccab DSH |
4086 | |
4087 | void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx) | |
0f113f3e MC |
4088 | { |
4089 | return ctx->cert->sec_ex; | |
4090 | } | |
b362ccab | 4091 | |
8106cb8b VD |
4092 | /* |
4093 | * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that | |
4094 | * can return unsigned long, instead of the generic long return value from the | |
4095 | * control interface. | |
4096 | */ | |
4097 | unsigned long SSL_CTX_get_options(const SSL_CTX *ctx) | |
4098 | { | |
4099 | return ctx->options; | |
4100 | } | |
a230b26e EK |
4101 | |
4102 | unsigned long SSL_get_options(const SSL *s) | |
8106cb8b VD |
4103 | { |
4104 | return s->options; | |
4105 | } | |
a230b26e | 4106 | |
8106cb8b VD |
4107 | unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op) |
4108 | { | |
4109 | return ctx->options |= op; | |
4110 | } | |
a230b26e | 4111 | |
8106cb8b VD |
4112 | unsigned long SSL_set_options(SSL *s, unsigned long op) |
4113 | { | |
4114 | return s->options |= op; | |
4115 | } | |
a230b26e | 4116 | |
8106cb8b VD |
4117 | unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op) |
4118 | { | |
4119 | return ctx->options &= ~op; | |
4120 | } | |
a230b26e | 4121 | |
8106cb8b VD |
4122 | unsigned long SSL_clear_options(SSL *s, unsigned long op) |
4123 | { | |
4124 | return s->options &= ~op; | |
4125 | } | |
4126 | ||
696178ed DSH |
4127 | STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s) |
4128 | { | |
4129 | return s->verified_chain; | |
4130 | } | |
4131 | ||
0f113f3e | 4132 | IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); |
ed29e82a RP |
4133 | |
4134 | #ifndef OPENSSL_NO_CT | |
4135 | ||
4136 | /* | |
4137 | * Moves SCTs from the |src| stack to the |dst| stack. | |
4138 | * The source of each SCT will be set to |origin|. | |
4139 | * If |dst| points to a NULL pointer, a new stack will be created and owned by | |
4140 | * the caller. | |
4141 | * Returns the number of SCTs moved, or a negative integer if an error occurs. | |
4142 | */ | |
a230b26e EK |
4143 | static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src, |
4144 | sct_source_t origin) | |
ed29e82a RP |
4145 | { |
4146 | int scts_moved = 0; | |
4147 | SCT *sct = NULL; | |
4148 | ||
4149 | if (*dst == NULL) { | |
4150 | *dst = sk_SCT_new_null(); | |
4151 | if (*dst == NULL) { | |
4152 | SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE); | |
4153 | goto err; | |
4154 | } | |
4155 | } | |
4156 | ||
4157 | while ((sct = sk_SCT_pop(src)) != NULL) { | |
4158 | if (SCT_set_source(sct, origin) != 1) | |
4159 | goto err; | |
4160 | ||
4161 | if (sk_SCT_push(*dst, sct) <= 0) | |
4162 | goto err; | |
4163 | scts_moved += 1; | |
4164 | } | |
4165 | ||
4166 | return scts_moved; | |
a230b26e | 4167 | err: |
ed29e82a | 4168 | if (sct != NULL) |
a230b26e | 4169 | sk_SCT_push(src, sct); /* Put the SCT back */ |
cc7113e8 | 4170 | return -1; |
ed29e82a RP |
4171 | } |
4172 | ||
4173 | /* | |
a230b26e | 4174 | * Look for data collected during ServerHello and parse if found. |
6b13bd1d | 4175 | * Returns the number of SCTs extracted. |
a230b26e | 4176 | */ |
ed29e82a RP |
4177 | static int ct_extract_tls_extension_scts(SSL *s) |
4178 | { | |
4179 | int scts_extracted = 0; | |
4180 | ||
aff8c126 RS |
4181 | if (s->ext.scts != NULL) { |
4182 | const unsigned char *p = s->ext.scts; | |
4183 | STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len); | |
ed29e82a RP |
4184 | |
4185 | scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION); | |
4186 | ||
4187 | SCT_LIST_free(scts); | |
4188 | } | |
4189 | ||
4190 | return scts_extracted; | |
4191 | } | |
4192 | ||
4193 | /* | |
4194 | * Checks for an OCSP response and then attempts to extract any SCTs found if it | |
4195 | * contains an SCT X509 extension. They will be stored in |s->scts|. | |
4196 | * Returns: | |
4197 | * - The number of SCTs extracted, assuming an OCSP response exists. | |
4198 | * - 0 if no OCSP response exists or it contains no SCTs. | |
4199 | * - A negative integer if an error occurs. | |
4200 | */ | |
4201 | static int ct_extract_ocsp_response_scts(SSL *s) | |
4202 | { | |
a230b26e | 4203 | # ifndef OPENSSL_NO_OCSP |
ed29e82a RP |
4204 | int scts_extracted = 0; |
4205 | const unsigned char *p; | |
4206 | OCSP_BASICRESP *br = NULL; | |
4207 | OCSP_RESPONSE *rsp = NULL; | |
4208 | STACK_OF(SCT) *scts = NULL; | |
4209 | int i; | |
4210 | ||
aff8c126 | 4211 | if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0) |
ed29e82a RP |
4212 | goto err; |
4213 | ||
aff8c126 RS |
4214 | p = s->ext.ocsp.resp; |
4215 | rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len); | |
ed29e82a RP |
4216 | if (rsp == NULL) |
4217 | goto err; | |
4218 | ||
4219 | br = OCSP_response_get1_basic(rsp); | |
4220 | if (br == NULL) | |
4221 | goto err; | |
4222 | ||
4223 | for (i = 0; i < OCSP_resp_count(br); ++i) { | |
4224 | OCSP_SINGLERESP *single = OCSP_resp_get0(br, i); | |
4225 | ||
4226 | if (single == NULL) | |
4227 | continue; | |
4228 | ||
a230b26e EK |
4229 | scts = |
4230 | OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL); | |
4231 | scts_extracted = | |
4232 | ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE); | |
ed29e82a RP |
4233 | if (scts_extracted < 0) |
4234 | goto err; | |
4235 | } | |
a230b26e | 4236 | err: |
ed29e82a RP |
4237 | SCT_LIST_free(scts); |
4238 | OCSP_BASICRESP_free(br); | |
4239 | OCSP_RESPONSE_free(rsp); | |
4240 | return scts_extracted; | |
a230b26e | 4241 | # else |
3e41ac35 MC |
4242 | /* Behave as if no OCSP response exists */ |
4243 | return 0; | |
a230b26e | 4244 | # endif |
ed29e82a RP |
4245 | } |
4246 | ||
4247 | /* | |
4248 | * Attempts to extract SCTs from the peer certificate. | |
4249 | * Return the number of SCTs extracted, or a negative integer if an error | |
4250 | * occurs. | |
4251 | */ | |
4252 | static int ct_extract_x509v3_extension_scts(SSL *s) | |
4253 | { | |
4254 | int scts_extracted = 0; | |
3f3c7d26 | 4255 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
ed29e82a RP |
4256 | |
4257 | if (cert != NULL) { | |
4258 | STACK_OF(SCT) *scts = | |
4259 | X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL); | |
4260 | ||
4261 | scts_extracted = | |
4262 | ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION); | |
4263 | ||
4264 | SCT_LIST_free(scts); | |
4265 | } | |
4266 | ||
4267 | return scts_extracted; | |
4268 | } | |
4269 | ||
4270 | /* | |
4271 | * Attempts to find all received SCTs by checking TLS extensions, the OCSP | |
4272 | * response (if it exists) and X509v3 extensions in the certificate. | |
4273 | * Returns NULL if an error occurs. | |
4274 | */ | |
4275 | const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s) | |
4276 | { | |
4277 | if (!s->scts_parsed) { | |
4278 | if (ct_extract_tls_extension_scts(s) < 0 || | |
4279 | ct_extract_ocsp_response_scts(s) < 0 || | |
4280 | ct_extract_x509v3_extension_scts(s) < 0) | |
4281 | goto err; | |
4282 | ||
4283 | s->scts_parsed = 1; | |
4284 | } | |
4285 | return s->scts; | |
a230b26e | 4286 | err: |
ed29e82a RP |
4287 | return NULL; |
4288 | } | |
4289 | ||
a230b26e | 4290 | static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx, |
43341433 | 4291 | const STACK_OF(SCT) *scts, void *unused_arg) |
ed29e82a | 4292 | { |
43341433 VD |
4293 | return 1; |
4294 | } | |
4295 | ||
a230b26e | 4296 | static int ct_strict(const CT_POLICY_EVAL_CTX * ctx, |
43341433 VD |
4297 | const STACK_OF(SCT) *scts, void *unused_arg) |
4298 | { | |
4299 | int count = scts != NULL ? sk_SCT_num(scts) : 0; | |
4300 | int i; | |
ed29e82a | 4301 | |
43341433 VD |
4302 | for (i = 0; i < count; ++i) { |
4303 | SCT *sct = sk_SCT_value(scts, i); | |
4304 | int status = SCT_get_validation_status(sct); | |
4305 | ||
4306 | if (status == SCT_VALIDATION_STATUS_VALID) | |
4307 | return 1; | |
4308 | } | |
4309 | SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS); | |
4310 | return 0; | |
4311 | } | |
4312 | ||
4313 | int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback, | |
4314 | void *arg) | |
4315 | { | |
ed29e82a RP |
4316 | /* |
4317 | * Since code exists that uses the custom extension handler for CT, look | |
4318 | * for this and throw an error if they have already registered to use CT. | |
4319 | */ | |
4320 | if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx, | |
a230b26e EK |
4321 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4322 | { | |
ed29e82a RP |
4323 | SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK, |
4324 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4325 | return 0; |
ed29e82a RP |
4326 | } |
4327 | ||
ed29e82a | 4328 | if (callback != NULL) { |
a230b26e EK |
4329 | /* |
4330 | * If we are validating CT, then we MUST accept SCTs served via OCSP | |
4331 | */ | |
ed29e82a | 4332 | if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp)) |
43341433 | 4333 | return 0; |
ed29e82a RP |
4334 | } |
4335 | ||
43341433 VD |
4336 | s->ct_validation_callback = callback; |
4337 | s->ct_validation_callback_arg = arg; | |
4338 | ||
4339 | return 1; | |
ed29e82a RP |
4340 | } |
4341 | ||
43341433 | 4342 | int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx, |
a230b26e | 4343 | ssl_ct_validation_cb callback, void *arg) |
ed29e82a | 4344 | { |
ed29e82a RP |
4345 | /* |
4346 | * Since code exists that uses the custom extension handler for CT, look for | |
4347 | * this and throw an error if they have already registered to use CT. | |
4348 | */ | |
4349 | if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx, | |
a230b26e EK |
4350 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4351 | { | |
ed29e82a RP |
4352 | SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK, |
4353 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4354 | return 0; |
ed29e82a RP |
4355 | } |
4356 | ||
4357 | ctx->ct_validation_callback = callback; | |
4358 | ctx->ct_validation_callback_arg = arg; | |
43341433 | 4359 | return 1; |
ed29e82a RP |
4360 | } |
4361 | ||
43341433 | 4362 | int SSL_ct_is_enabled(const SSL *s) |
ed29e82a | 4363 | { |
43341433 | 4364 | return s->ct_validation_callback != NULL; |
ed29e82a RP |
4365 | } |
4366 | ||
43341433 | 4367 | int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx) |
ed29e82a | 4368 | { |
43341433 | 4369 | return ctx->ct_validation_callback != NULL; |
ed29e82a RP |
4370 | } |
4371 | ||
4d482ee2 | 4372 | int ssl_validate_ct(SSL *s) |
ed29e82a RP |
4373 | { |
4374 | int ret = 0; | |
3f3c7d26 | 4375 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
43341433 | 4376 | X509 *issuer; |
b9aec69a | 4377 | SSL_DANE *dane = &s->dane; |
ed29e82a RP |
4378 | CT_POLICY_EVAL_CTX *ctx = NULL; |
4379 | const STACK_OF(SCT) *scts; | |
4380 | ||
43341433 VD |
4381 | /* |
4382 | * If no callback is set, the peer is anonymous, or its chain is invalid, | |
4383 | * skip SCT validation - just return success. Applications that continue | |
4384 | * handshakes without certificates, with unverified chains, or pinned leaf | |
4385 | * certificates are outside the scope of the WebPKI and CT. | |
4386 | * | |
4387 | * The above exclusions notwithstanding the vast majority of peers will | |
4388 | * have rather ordinary certificate chains validated by typical | |
4389 | * applications that perform certificate verification and therefore will | |
4390 | * process SCTs when enabled. | |
4391 | */ | |
4392 | if (s->ct_validation_callback == NULL || cert == NULL || | |
4393 | s->verify_result != X509_V_OK || | |
a230b26e | 4394 | s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1) |
ed29e82a RP |
4395 | return 1; |
4396 | ||
43341433 VD |
4397 | /* |
4398 | * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3) | |
4399 | * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2 | |
4400 | */ | |
4401 | if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) { | |
4402 | switch (dane->mtlsa->usage) { | |
4403 | case DANETLS_USAGE_DANE_TA: | |
4404 | case DANETLS_USAGE_DANE_EE: | |
4405 | return 1; | |
4406 | } | |
ed29e82a RP |
4407 | } |
4408 | ||
ed29e82a RP |
4409 | ctx = CT_POLICY_EVAL_CTX_new(); |
4410 | if (ctx == NULL) { | |
4411 | SSLerr(SSL_F_SSL_VALIDATE_CT, ERR_R_MALLOC_FAILURE); | |
4412 | goto end; | |
4413 | } | |
4414 | ||
43341433 | 4415 | issuer = sk_X509_value(s->verified_chain, 1); |
a1bb7708 RP |
4416 | CT_POLICY_EVAL_CTX_set1_cert(ctx, cert); |
4417 | CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer); | |
4418 | CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx, s->ctx->ctlog_store); | |
1fa9ffd9 | 4419 | CT_POLICY_EVAL_CTX_set_time(ctx, SSL_SESSION_get_time(SSL_get0_session(s))); |
ed29e82a RP |
4420 | |
4421 | scts = SSL_get0_peer_scts(s); | |
4422 | ||
43341433 VD |
4423 | /* |
4424 | * This function returns success (> 0) only when all the SCTs are valid, 0 | |
4425 | * when some are invalid, and < 0 on various internal errors (out of | |
4426 | * memory, etc.). Having some, or even all, invalid SCTs is not sufficient | |
4427 | * reason to abort the handshake, that decision is up to the callback. | |
4428 | * Therefore, we error out only in the unexpected case that the return | |
4429 | * value is negative. | |
4430 | * | |
4431 | * XXX: One might well argue that the return value of this function is an | |
f430ba31 | 4432 | * unfortunate design choice. Its job is only to determine the validation |
43341433 VD |
4433 | * status of each of the provided SCTs. So long as it correctly separates |
4434 | * the wheat from the chaff it should return success. Failure in this case | |
4435 | * ought to correspond to an inability to carry out its duties. | |
4436 | */ | |
4437 | if (SCT_LIST_validate(scts, ctx) < 0) { | |
ed29e82a RP |
4438 | SSLerr(SSL_F_SSL_VALIDATE_CT, SSL_R_SCT_VERIFICATION_FAILED); |
4439 | goto end; | |
4440 | } | |
4441 | ||
4442 | ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg); | |
4443 | if (ret < 0) | |
a230b26e | 4444 | ret = 0; /* This function returns 0 on failure */ |
ed29e82a | 4445 | |
a230b26e | 4446 | end: |
ed29e82a | 4447 | CT_POLICY_EVAL_CTX_free(ctx); |
f75b34c8 VD |
4448 | /* |
4449 | * With SSL_VERIFY_NONE the session may be cached and re-used despite a | |
4450 | * failure return code here. Also the application may wish the complete | |
4451 | * the handshake, and then disconnect cleanly at a higher layer, after | |
4452 | * checking the verification status of the completed connection. | |
4453 | * | |
4454 | * We therefore force a certificate verification failure which will be | |
4455 | * visible via SSL_get_verify_result() and cached as part of any resumed | |
4456 | * session. | |
4457 | * | |
4458 | * Note: the permissive callback is for information gathering only, always | |
4459 | * returns success, and does not affect verification status. Only the | |
4460 | * strict callback or a custom application-specified callback can trigger | |
4461 | * connection failure or record a verification error. | |
4462 | */ | |
4463 | if (ret <= 0) | |
4464 | s->verify_result = X509_V_ERR_NO_VALID_SCTS; | |
ed29e82a RP |
4465 | return ret; |
4466 | } | |
4467 | ||
43341433 VD |
4468 | int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode) |
4469 | { | |
4470 | switch (validation_mode) { | |
4471 | default: | |
4472 | SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
4473 | return 0; | |
4474 | case SSL_CT_VALIDATION_PERMISSIVE: | |
4475 | return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL); | |
4476 | case SSL_CT_VALIDATION_STRICT: | |
4477 | return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL); | |
4478 | } | |
4479 | } | |
4480 | ||
4481 | int SSL_enable_ct(SSL *s, int validation_mode) | |
4482 | { | |
4483 | switch (validation_mode) { | |
4484 | default: | |
4485 | SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
4486 | return 0; | |
4487 | case SSL_CT_VALIDATION_PERMISSIVE: | |
4488 | return SSL_set_ct_validation_callback(s, ct_permissive, NULL); | |
4489 | case SSL_CT_VALIDATION_STRICT: | |
4490 | return SSL_set_ct_validation_callback(s, ct_strict, NULL); | |
4491 | } | |
4492 | } | |
4493 | ||
ed29e82a RP |
4494 | int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx) |
4495 | { | |
328f36c5 | 4496 | return CTLOG_STORE_load_default_file(ctx->ctlog_store); |
ed29e82a RP |
4497 | } |
4498 | ||
4499 | int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path) | |
4500 | { | |
4501 | return CTLOG_STORE_load_file(ctx->ctlog_store, path); | |
4502 | } | |
4503 | ||
a230b26e | 4504 | void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs) |
8359b57f RP |
4505 | { |
4506 | CTLOG_STORE_free(ctx->ctlog_store); | |
4507 | ctx->ctlog_store = logs; | |
4508 | } | |
4509 | ||
4510 | const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx) | |
4511 | { | |
4512 | return ctx->ctlog_store; | |
4513 | } | |
4514 | ||
6b1bb98f BK |
4515 | #endif /* OPENSSL_NO_CT */ |
4516 | ||
4517 | void SSL_CTX_set_early_cb(SSL_CTX *c, SSL_early_cb_fn cb, void *arg) | |
4518 | { | |
4519 | c->early_cb = cb; | |
4520 | c->early_cb_arg = arg; | |
4521 | } | |
4522 | ||
4523 | int SSL_early_isv2(SSL *s) | |
4524 | { | |
4525 | if (s->clienthello == NULL) | |
4526 | return 0; | |
4527 | return s->clienthello->isv2; | |
4528 | } | |
4529 | ||
4530 | unsigned int SSL_early_get0_legacy_version(SSL *s) | |
4531 | { | |
4532 | if (s->clienthello == NULL) | |
4533 | return 0; | |
4534 | return s->clienthello->legacy_version; | |
4535 | } | |
4536 | ||
4537 | size_t SSL_early_get0_random(SSL *s, const unsigned char **out) | |
4538 | { | |
4539 | if (s->clienthello == NULL) | |
4540 | return 0; | |
4541 | if (out != NULL) | |
4542 | *out = s->clienthello->random; | |
4543 | return SSL3_RANDOM_SIZE; | |
4544 | } | |
4545 | ||
4546 | size_t SSL_early_get0_session_id(SSL *s, const unsigned char **out) | |
4547 | { | |
4548 | if (s->clienthello == NULL) | |
4549 | return 0; | |
4550 | if (out != NULL) | |
4551 | *out = s->clienthello->session_id; | |
4552 | return s->clienthello->session_id_len; | |
4553 | } | |
4554 | ||
4555 | size_t SSL_early_get0_ciphers(SSL *s, const unsigned char **out) | |
4556 | { | |
4557 | if (s->clienthello == NULL) | |
4558 | return 0; | |
4559 | if (out != NULL) | |
4560 | *out = PACKET_data(&s->clienthello->ciphersuites); | |
4561 | return PACKET_remaining(&s->clienthello->ciphersuites); | |
4562 | } | |
4563 | ||
4564 | size_t SSL_early_get0_compression_methods(SSL *s, const unsigned char **out) | |
4565 | { | |
4566 | if (s->clienthello == NULL) | |
4567 | return 0; | |
4568 | if (out != NULL) | |
4569 | *out = s->clienthello->compressions; | |
4570 | return s->clienthello->compressions_len; | |
4571 | } | |
4572 | ||
4573 | int SSL_early_get0_ext(SSL *s, unsigned int type, const unsigned char **out, | |
4574 | size_t *outlen) | |
4575 | { | |
4576 | size_t i; | |
4577 | RAW_EXTENSION *r; | |
4578 | ||
4579 | if (s->clienthello == NULL) | |
4580 | return 0; | |
4581 | for (i = 0; i < s->clienthello->pre_proc_exts_len; ++i) { | |
4582 | r = s->clienthello->pre_proc_exts + i; | |
4583 | if (r->present && r->type == type) { | |
4584 | if (out != NULL) | |
4585 | *out = PACKET_data(&r->data); | |
4586 | if (outlen != NULL) | |
4587 | *outlen = PACKET_remaining(&r->data); | |
4588 | return 1; | |
4589 | } | |
4590 | } | |
4591 | return 0; | |
4592 | } | |
2faa1b48 CB |
4593 | |
4594 | void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb) | |
4595 | { | |
4596 | ctx->keylog_callback = cb; | |
4597 | } | |
4598 | ||
4599 | SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx) | |
4600 | { | |
4601 | return ctx->keylog_callback; | |
4602 | } | |
4603 | ||
4604 | static int nss_keylog_int(const char *prefix, | |
4605 | SSL *ssl, | |
4606 | const uint8_t *parameter_1, | |
4607 | size_t parameter_1_len, | |
4608 | const uint8_t *parameter_2, | |
4609 | size_t parameter_2_len) | |
4610 | { | |
4611 | char *out = NULL; | |
4612 | char *cursor = NULL; | |
4613 | size_t out_len = 0; | |
4614 | size_t i; | |
4615 | size_t prefix_len; | |
4616 | ||
4617 | if (ssl->ctx->keylog_callback == NULL) return 1; | |
4618 | ||
4619 | /* | |
4620 | * Our output buffer will contain the following strings, rendered with | |
4621 | * space characters in between, terminated by a NULL character: first the | |
4622 | * prefix, then the first parameter, then the second parameter. The | |
4623 | * meaning of each parameter depends on the specific key material being | |
4624 | * logged. Note that the first and second parameters are encoded in | |
4625 | * hexadecimal, so we need a buffer that is twice their lengths. | |
4626 | */ | |
4627 | prefix_len = strlen(prefix); | |
4628 | out_len = prefix_len + (2*parameter_1_len) + (2*parameter_2_len) + 3; | |
4629 | if ((out = cursor = OPENSSL_malloc(out_len)) == NULL) { | |
4630 | SSLerr(SSL_F_NSS_KEYLOG_INT, ERR_R_MALLOC_FAILURE); | |
4631 | return 0; | |
4632 | } | |
4633 | ||
4634 | strcpy(cursor, prefix); | |
4635 | cursor += prefix_len; | |
4636 | *cursor++ = ' '; | |
4637 | ||
4638 | for (i = 0; i < parameter_1_len; i++) { | |
4639 | sprintf(cursor, "%02x", parameter_1[i]); | |
4640 | cursor += 2; | |
4641 | } | |
4642 | *cursor++ = ' '; | |
4643 | ||
4644 | for (i = 0; i < parameter_2_len; i++) { | |
4645 | sprintf(cursor, "%02x", parameter_2[i]); | |
4646 | cursor += 2; | |
4647 | } | |
4648 | *cursor = '\0'; | |
4649 | ||
4650 | ssl->ctx->keylog_callback(ssl, (const char *)out); | |
4651 | OPENSSL_free(out); | |
4652 | return 1; | |
4653 | ||
4654 | } | |
4655 | ||
4656 | int ssl_log_rsa_client_key_exchange(SSL *ssl, | |
4657 | const uint8_t *encrypted_premaster, | |
4658 | size_t encrypted_premaster_len, | |
4659 | const uint8_t *premaster, | |
4660 | size_t premaster_len) | |
4661 | { | |
4662 | if (encrypted_premaster_len < 8) { | |
4663 | SSLerr(SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR); | |
4664 | return 0; | |
4665 | } | |
4666 | ||
f0deb4d3 | 4667 | /* We only want the first 8 bytes of the encrypted premaster as a tag. */ |
2faa1b48 CB |
4668 | return nss_keylog_int("RSA", |
4669 | ssl, | |
4670 | encrypted_premaster, | |
f0deb4d3 | 4671 | 8, |
2faa1b48 CB |
4672 | premaster, |
4673 | premaster_len); | |
4674 | } | |
4675 | ||
2c7bd692 CB |
4676 | int ssl_log_secret(SSL *ssl, |
4677 | const char *label, | |
4678 | const uint8_t *secret, | |
4679 | size_t secret_len) | |
2faa1b48 | 4680 | { |
2c7bd692 | 4681 | return nss_keylog_int(label, |
2faa1b48 | 4682 | ssl, |
2c7bd692 CB |
4683 | ssl->s3->client_random, |
4684 | SSL3_RANDOM_SIZE, | |
4685 | secret, | |
4686 | secret_len); | |
2faa1b48 CB |
4687 | } |
4688 | ||
ccb8e6e0 BK |
4689 | #define SSLV2_CIPHER_LEN 3 |
4690 | ||
90134d98 BK |
4691 | int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites, int sslv2format, |
4692 | int *al) | |
ccb8e6e0 | 4693 | { |
ccb8e6e0 | 4694 | int n; |
ccb8e6e0 BK |
4695 | |
4696 | n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN; | |
4697 | ||
4698 | if (PACKET_remaining(cipher_suites) == 0) { | |
90134d98 | 4699 | SSLerr(SSL_F_SSL_CACHE_CIPHERLIST, SSL_R_NO_CIPHERS_SPECIFIED); |
ccb8e6e0 | 4700 | *al = SSL_AD_ILLEGAL_PARAMETER; |
90134d98 | 4701 | return 0; |
ccb8e6e0 BK |
4702 | } |
4703 | ||
4704 | if (PACKET_remaining(cipher_suites) % n != 0) { | |
90134d98 | 4705 | SSLerr(SSL_F_SSL_CACHE_CIPHERLIST, |
ccb8e6e0 BK |
4706 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); |
4707 | *al = SSL_AD_DECODE_ERROR; | |
90134d98 | 4708 | return 0; |
ccb8e6e0 BK |
4709 | } |
4710 | ||
4711 | OPENSSL_free(s->s3->tmp.ciphers_raw); | |
4712 | s->s3->tmp.ciphers_raw = NULL; | |
4713 | s->s3->tmp.ciphers_rawlen = 0; | |
4714 | ||
4715 | if (sslv2format) { | |
4716 | size_t numciphers = PACKET_remaining(cipher_suites) / n; | |
4717 | PACKET sslv2ciphers = *cipher_suites; | |
4718 | unsigned int leadbyte; | |
4719 | unsigned char *raw; | |
4720 | ||
4721 | /* | |
4722 | * We store the raw ciphers list in SSLv3+ format so we need to do some | |
4723 | * preprocessing to convert the list first. If there are any SSLv2 only | |
4724 | * ciphersuites with a non-zero leading byte then we are going to | |
4725 | * slightly over allocate because we won't store those. But that isn't a | |
4726 | * problem. | |
4727 | */ | |
4728 | raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN); | |
4729 | s->s3->tmp.ciphers_raw = raw; | |
4730 | if (raw == NULL) { | |
4731 | *al = SSL_AD_INTERNAL_ERROR; | |
4732 | goto err; | |
4733 | } | |
4734 | for (s->s3->tmp.ciphers_rawlen = 0; | |
4735 | PACKET_remaining(&sslv2ciphers) > 0; | |
4736 | raw += TLS_CIPHER_LEN) { | |
4737 | if (!PACKET_get_1(&sslv2ciphers, &leadbyte) | |
4738 | || (leadbyte == 0 | |
4739 | && !PACKET_copy_bytes(&sslv2ciphers, raw, | |
4740 | TLS_CIPHER_LEN)) | |
4741 | || (leadbyte != 0 | |
4742 | && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) { | |
4743 | *al = SSL_AD_INTERNAL_ERROR; | |
4744 | OPENSSL_free(s->s3->tmp.ciphers_raw); | |
4745 | s->s3->tmp.ciphers_raw = NULL; | |
4746 | s->s3->tmp.ciphers_rawlen = 0; | |
4747 | goto err; | |
4748 | } | |
4749 | if (leadbyte == 0) | |
4750 | s->s3->tmp.ciphers_rawlen += TLS_CIPHER_LEN; | |
4751 | } | |
4752 | } else if (!PACKET_memdup(cipher_suites, &s->s3->tmp.ciphers_raw, | |
4753 | &s->s3->tmp.ciphers_rawlen)) { | |
4754 | *al = SSL_AD_INTERNAL_ERROR; | |
4755 | goto err; | |
4756 | } | |
90134d98 BK |
4757 | return 1; |
4758 | err: | |
4759 | return 0; | |
4760 | } | |
4761 | ||
4762 | int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len, | |
4763 | int isv2format, STACK_OF(SSL_CIPHER) **sk, | |
4764 | STACK_OF(SSL_CIPHER) **scsvs) | |
4765 | { | |
4766 | int alert; | |
4767 | PACKET pkt; | |
4768 | ||
4769 | if (!PACKET_buf_init(&pkt, bytes, len)) | |
4770 | return 0; | |
4771 | return bytes_to_cipher_list(s, &pkt, sk, scsvs, isv2format, &alert); | |
4772 | } | |
4773 | ||
4774 | int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites, | |
4775 | STACK_OF(SSL_CIPHER) **skp, | |
4776 | STACK_OF(SSL_CIPHER) **scsvs_out, | |
4777 | int sslv2format, int *al) | |
4778 | { | |
4779 | const SSL_CIPHER *c; | |
4780 | STACK_OF(SSL_CIPHER) *sk = NULL; | |
4781 | STACK_OF(SSL_CIPHER) *scsvs = NULL; | |
4782 | int n; | |
4783 | /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */ | |
4784 | unsigned char cipher[SSLV2_CIPHER_LEN]; | |
4785 | ||
4786 | n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN; | |
4787 | ||
4788 | if (PACKET_remaining(cipher_suites) == 0) { | |
4789 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_NO_CIPHERS_SPECIFIED); | |
4790 | *al = SSL_AD_ILLEGAL_PARAMETER; | |
4791 | return 0; | |
4792 | } | |
4793 | ||
4794 | if (PACKET_remaining(cipher_suites) % n != 0) { | |
4795 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, | |
4796 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); | |
4797 | *al = SSL_AD_DECODE_ERROR; | |
4798 | return 0; | |
4799 | } | |
4800 | ||
4801 | sk = sk_SSL_CIPHER_new_null(); | |
4802 | scsvs = sk_SSL_CIPHER_new_null(); | |
4803 | if (sk == NULL || scsvs == NULL) { | |
4804 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
4805 | *al = SSL_AD_INTERNAL_ERROR; | |
4806 | goto err; | |
4807 | } | |
ccb8e6e0 BK |
4808 | |
4809 | while (PACKET_copy_bytes(cipher_suites, cipher, n)) { | |
4810 | /* | |
4811 | * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the | |
4812 | * first byte set to zero, while true SSLv2 ciphers have a non-zero | |
4813 | * first byte. We don't support any true SSLv2 ciphers, so skip them. | |
4814 | */ | |
4815 | if (sslv2format && cipher[0] != '\0') | |
4816 | continue; | |
4817 | ||
ccb8e6e0 BK |
4818 | /* For SSLv2-compat, ignore leading 0-byte. */ |
4819 | c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1); | |
4820 | if (c != NULL) { | |
90134d98 BK |
4821 | if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) || |
4822 | (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) { | |
ccb8e6e0 BK |
4823 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); |
4824 | *al = SSL_AD_INTERNAL_ERROR; | |
4825 | goto err; | |
4826 | } | |
4827 | } | |
4828 | } | |
4829 | if (PACKET_remaining(cipher_suites) > 0) { | |
4830 | *al = SSL_AD_INTERNAL_ERROR; | |
4831 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_INTERNAL_ERROR); | |
4832 | goto err; | |
4833 | } | |
4834 | ||
90134d98 BK |
4835 | if (skp != NULL) |
4836 | *skp = sk; | |
4837 | else | |
4838 | sk_SSL_CIPHER_free(sk); | |
4839 | if (scsvs_out != NULL) | |
4840 | *scsvs_out = scsvs; | |
4841 | else | |
4842 | sk_SSL_CIPHER_free(scsvs); | |
4843 | return 1; | |
ccb8e6e0 BK |
4844 | err: |
4845 | sk_SSL_CIPHER_free(sk); | |
90134d98 BK |
4846 | sk_SSL_CIPHER_free(scsvs); |
4847 | return 0; | |
ccb8e6e0 | 4848 | } |
3fc8d856 MC |
4849 | |
4850 | int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data) | |
4851 | { | |
4852 | ctx->max_early_data = max_early_data; | |
4853 | ||
4854 | return 1; | |
4855 | } | |
4856 | ||
46dcb945 | 4857 | uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx) |
3fc8d856 MC |
4858 | { |
4859 | return ctx->max_early_data; | |
4860 | } | |
4861 | ||
4862 | int SSL_set_max_early_data(SSL *s, uint32_t max_early_data) | |
4863 | { | |
4864 | s->max_early_data = max_early_data; | |
4865 | ||
4866 | return 1; | |
4867 | } | |
4868 | ||
46dcb945 | 4869 | uint32_t SSL_get_max_early_data(const SSL_CTX *s) |
3fc8d856 MC |
4870 | { |
4871 | return s->max_early_data; | |
4872 | } |