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0f113f3e | 1 | /* |
846e33c7 | 2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. |
aa8f3d76 | 3 | * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved |
c80149d9 | 4 | * Copyright 2005 Nokia. All rights reserved. |
bf21446a | 5 | * |
846e33c7 RS |
6 | * Licensed under the OpenSSL license (the "License"). You may not use |
7 | * this file except in compliance with the License. You can obtain a copy | |
8 | * in the file LICENSE in the source distribution or at | |
9 | * https://www.openssl.org/source/license.html | |
bf21446a | 10 | */ |
846e33c7 | 11 | |
d02b48c6 | 12 | #include <stdio.h> |
7b63c0fa | 13 | #include "ssl_locl.h" |
ec577822 BM |
14 | #include <openssl/objects.h> |
15 | #include <openssl/lhash.h> | |
bb7cd4e3 | 16 | #include <openssl/x509v3.h> |
6434abbf | 17 | #include <openssl/rand.h> |
67c8e7f4 | 18 | #include <openssl/ocsp.h> |
3c27208f RS |
19 | #include <openssl/dh.h> |
20 | #include <openssl/engine.h> | |
07bbc92c | 21 | #include <openssl/async.h> |
3c27208f | 22 | #include <openssl/ct.h> |
0f113f3e | 23 | |
df2ee0e2 | 24 | const char SSL_version_str[] = OPENSSL_VERSION_TEXT; |
0f113f3e MC |
25 | |
26 | SSL3_ENC_METHOD ssl3_undef_enc_method = { | |
27 | /* | |
28 | * evil casts, but these functions are only called if there's a library | |
29 | * bug | |
30 | */ | |
72716e79 | 31 | (int (*)(SSL *, SSL3_RECORD *, size_t, int))ssl_undefined_function, |
d102d9df | 32 | (int (*)(SSL *, SSL3_RECORD *, unsigned char *, int))ssl_undefined_function, |
0f113f3e | 33 | ssl_undefined_function, |
8c1a5343 | 34 | (int (*)(SSL *, unsigned char *, unsigned char *, size_t, size_t *)) |
0f113f3e MC |
35 | ssl_undefined_function, |
36 | (int (*)(SSL *, int))ssl_undefined_function, | |
6db6bc5a | 37 | (size_t (*)(SSL *, const char *, size_t, unsigned char *)) |
0f113f3e | 38 | ssl_undefined_function, |
0f113f3e MC |
39 | NULL, /* client_finished_label */ |
40 | 0, /* client_finished_label_len */ | |
41 | NULL, /* server_finished_label */ | |
42 | 0, /* server_finished_label_len */ | |
43 | (int (*)(int))ssl_undefined_function, | |
44 | (int (*)(SSL *, unsigned char *, size_t, const char *, | |
45 | size_t, const unsigned char *, size_t, | |
46 | int use_context))ssl_undefined_function, | |
47 | }; | |
d02b48c6 | 48 | |
07bbc92c MC |
49 | struct ssl_async_args { |
50 | SSL *s; | |
51 | void *buf; | |
348240c6 | 52 | size_t num; |
a230b26e | 53 | enum { READFUNC, WRITEFUNC, OTHERFUNC } type; |
add2f5ca | 54 | union { |
eda75751 | 55 | int (*func_read) (SSL *, void *, size_t, size_t *); |
7ee8627f | 56 | int (*func_write) (SSL *, const void *, size_t, size_t *); |
a230b26e | 57 | int (*func_other) (SSL *); |
add2f5ca | 58 | } f; |
07bbc92c MC |
59 | }; |
60 | ||
919ba009 VD |
61 | static const struct { |
62 | uint8_t mtype; | |
63 | uint8_t ord; | |
a230b26e | 64 | int nid; |
919ba009 | 65 | } dane_mds[] = { |
a230b26e EK |
66 | { |
67 | DANETLS_MATCHING_FULL, 0, NID_undef | |
68 | }, | |
69 | { | |
70 | DANETLS_MATCHING_2256, 1, NID_sha256 | |
71 | }, | |
72 | { | |
73 | DANETLS_MATCHING_2512, 2, NID_sha512 | |
74 | }, | |
919ba009 VD |
75 | }; |
76 | ||
77 | static int dane_ctx_enable(struct dane_ctx_st *dctx) | |
78 | { | |
79 | const EVP_MD **mdevp; | |
80 | uint8_t *mdord; | |
81 | uint8_t mdmax = DANETLS_MATCHING_LAST; | |
a230b26e | 82 | int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */ |
919ba009 VD |
83 | size_t i; |
84 | ||
5ae4ceb9 VD |
85 | if (dctx->mdevp != NULL) |
86 | return 1; | |
87 | ||
919ba009 VD |
88 | mdevp = OPENSSL_zalloc(n * sizeof(*mdevp)); |
89 | mdord = OPENSSL_zalloc(n * sizeof(*mdord)); | |
90 | ||
91 | if (mdord == NULL || mdevp == NULL) { | |
b3bd3d5a | 92 | OPENSSL_free(mdord); |
919ba009 VD |
93 | OPENSSL_free(mdevp); |
94 | SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE); | |
95 | return 0; | |
96 | } | |
97 | ||
98 | /* Install default entries */ | |
99 | for (i = 0; i < OSSL_NELEM(dane_mds); ++i) { | |
100 | const EVP_MD *md; | |
101 | ||
102 | if (dane_mds[i].nid == NID_undef || | |
103 | (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL) | |
104 | continue; | |
105 | mdevp[dane_mds[i].mtype] = md; | |
106 | mdord[dane_mds[i].mtype] = dane_mds[i].ord; | |
107 | } | |
108 | ||
109 | dctx->mdevp = mdevp; | |
110 | dctx->mdord = mdord; | |
111 | dctx->mdmax = mdmax; | |
112 | ||
113 | return 1; | |
114 | } | |
115 | ||
116 | static void dane_ctx_final(struct dane_ctx_st *dctx) | |
117 | { | |
118 | OPENSSL_free(dctx->mdevp); | |
119 | dctx->mdevp = NULL; | |
120 | ||
121 | OPENSSL_free(dctx->mdord); | |
122 | dctx->mdord = NULL; | |
123 | dctx->mdmax = 0; | |
124 | } | |
125 | ||
126 | static void tlsa_free(danetls_record *t) | |
127 | { | |
128 | if (t == NULL) | |
129 | return; | |
130 | OPENSSL_free(t->data); | |
131 | EVP_PKEY_free(t->spki); | |
132 | OPENSSL_free(t); | |
133 | } | |
134 | ||
b9aec69a | 135 | static void dane_final(SSL_DANE *dane) |
919ba009 VD |
136 | { |
137 | sk_danetls_record_pop_free(dane->trecs, tlsa_free); | |
138 | dane->trecs = NULL; | |
139 | ||
140 | sk_X509_pop_free(dane->certs, X509_free); | |
141 | dane->certs = NULL; | |
142 | ||
143 | X509_free(dane->mcert); | |
144 | dane->mcert = NULL; | |
145 | dane->mtlsa = NULL; | |
146 | dane->mdpth = -1; | |
147 | dane->pdpth = -1; | |
148 | } | |
149 | ||
150 | /* | |
151 | * dane_copy - Copy dane configuration, sans verification state. | |
152 | */ | |
153 | static int ssl_dane_dup(SSL *to, SSL *from) | |
154 | { | |
155 | int num; | |
156 | int i; | |
157 | ||
158 | if (!DANETLS_ENABLED(&from->dane)) | |
159 | return 1; | |
160 | ||
161 | dane_final(&to->dane); | |
5ae4ceb9 | 162 | to->dane.flags = from->dane.flags; |
9f6b22b8 VD |
163 | to->dane.dctx = &to->ctx->dane; |
164 | to->dane.trecs = sk_danetls_record_new_null(); | |
165 | ||
166 | if (to->dane.trecs == NULL) { | |
167 | SSLerr(SSL_F_SSL_DANE_DUP, ERR_R_MALLOC_FAILURE); | |
168 | return 0; | |
169 | } | |
919ba009 | 170 | |
a230b26e | 171 | num = sk_danetls_record_num(from->dane.trecs); |
919ba009 VD |
172 | for (i = 0; i < num; ++i) { |
173 | danetls_record *t = sk_danetls_record_value(from->dane.trecs, i); | |
9f6b22b8 | 174 | |
919ba009 VD |
175 | if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype, |
176 | t->data, t->dlen) <= 0) | |
177 | return 0; | |
178 | } | |
179 | return 1; | |
180 | } | |
181 | ||
a230b26e EK |
182 | static int dane_mtype_set(struct dane_ctx_st *dctx, |
183 | const EVP_MD *md, uint8_t mtype, uint8_t ord) | |
919ba009 VD |
184 | { |
185 | int i; | |
186 | ||
187 | if (mtype == DANETLS_MATCHING_FULL && md != NULL) { | |
a230b26e | 188 | SSLerr(SSL_F_DANE_MTYPE_SET, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL); |
919ba009 VD |
189 | return 0; |
190 | } | |
191 | ||
192 | if (mtype > dctx->mdmax) { | |
193 | const EVP_MD **mdevp; | |
194 | uint8_t *mdord; | |
a230b26e | 195 | int n = ((int)mtype) + 1; |
919ba009 VD |
196 | |
197 | mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp)); | |
198 | if (mdevp == NULL) { | |
199 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
200 | return -1; | |
201 | } | |
202 | dctx->mdevp = mdevp; | |
203 | ||
204 | mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord)); | |
205 | if (mdord == NULL) { | |
206 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
207 | return -1; | |
208 | } | |
209 | dctx->mdord = mdord; | |
210 | ||
211 | /* Zero-fill any gaps */ | |
a230b26e | 212 | for (i = dctx->mdmax + 1; i < mtype; ++i) { |
919ba009 VD |
213 | mdevp[i] = NULL; |
214 | mdord[i] = 0; | |
215 | } | |
216 | ||
217 | dctx->mdmax = mtype; | |
218 | } | |
219 | ||
220 | dctx->mdevp[mtype] = md; | |
221 | /* Coerce ordinal of disabled matching types to 0 */ | |
222 | dctx->mdord[mtype] = (md == NULL) ? 0 : ord; | |
223 | ||
224 | return 1; | |
225 | } | |
226 | ||
b9aec69a | 227 | static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype) |
919ba009 VD |
228 | { |
229 | if (mtype > dane->dctx->mdmax) | |
230 | return NULL; | |
231 | return dane->dctx->mdevp[mtype]; | |
232 | } | |
233 | ||
a230b26e EK |
234 | static int dane_tlsa_add(SSL_DANE *dane, |
235 | uint8_t usage, | |
236 | uint8_t selector, | |
237 | uint8_t mtype, unsigned char *data, size_t dlen) | |
919ba009 VD |
238 | { |
239 | danetls_record *t; | |
240 | const EVP_MD *md = NULL; | |
241 | int ilen = (int)dlen; | |
242 | int i; | |
9f6b22b8 | 243 | int num; |
919ba009 VD |
244 | |
245 | if (dane->trecs == NULL) { | |
246 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED); | |
247 | return -1; | |
248 | } | |
249 | ||
250 | if (ilen < 0 || dlen != (size_t)ilen) { | |
251 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH); | |
252 | return 0; | |
253 | } | |
254 | ||
255 | if (usage > DANETLS_USAGE_LAST) { | |
256 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE); | |
257 | return 0; | |
258 | } | |
259 | ||
260 | if (selector > DANETLS_SELECTOR_LAST) { | |
261 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR); | |
262 | return 0; | |
263 | } | |
264 | ||
265 | if (mtype != DANETLS_MATCHING_FULL) { | |
266 | md = tlsa_md_get(dane, mtype); | |
267 | if (md == NULL) { | |
268 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE); | |
269 | return 0; | |
270 | } | |
271 | } | |
272 | ||
273 | if (md != NULL && dlen != (size_t)EVP_MD_size(md)) { | |
274 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH); | |
275 | return 0; | |
276 | } | |
277 | if (!data) { | |
278 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA); | |
279 | return 0; | |
280 | } | |
281 | ||
282 | if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) { | |
283 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
284 | return -1; | |
285 | } | |
286 | ||
287 | t->usage = usage; | |
288 | t->selector = selector; | |
289 | t->mtype = mtype; | |
348240c6 | 290 | t->data = OPENSSL_malloc(dlen); |
919ba009 VD |
291 | if (t->data == NULL) { |
292 | tlsa_free(t); | |
293 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
294 | return -1; | |
295 | } | |
348240c6 MC |
296 | memcpy(t->data, data, dlen); |
297 | t->dlen = dlen; | |
919ba009 VD |
298 | |
299 | /* Validate and cache full certificate or public key */ | |
300 | if (mtype == DANETLS_MATCHING_FULL) { | |
301 | const unsigned char *p = data; | |
302 | X509 *cert = NULL; | |
303 | EVP_PKEY *pkey = NULL; | |
304 | ||
305 | switch (selector) { | |
306 | case DANETLS_SELECTOR_CERT: | |
348240c6 | 307 | if (!d2i_X509(&cert, &p, ilen) || p < data || |
919ba009 VD |
308 | dlen != (size_t)(p - data)) { |
309 | tlsa_free(t); | |
310 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
311 | return 0; | |
312 | } | |
313 | if (X509_get0_pubkey(cert) == NULL) { | |
314 | tlsa_free(t); | |
315 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
316 | return 0; | |
317 | } | |
318 | ||
319 | if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) { | |
320 | X509_free(cert); | |
321 | break; | |
322 | } | |
323 | ||
324 | /* | |
325 | * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA | |
326 | * records that contain full certificates of trust-anchors that are | |
327 | * not present in the wire chain. For usage PKIX-TA(0), we augment | |
328 | * the chain with untrusted Full(0) certificates from DNS, in case | |
329 | * they are missing from the chain. | |
330 | */ | |
331 | if ((dane->certs == NULL && | |
332 | (dane->certs = sk_X509_new_null()) == NULL) || | |
333 | !sk_X509_push(dane->certs, cert)) { | |
334 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
335 | X509_free(cert); | |
336 | tlsa_free(t); | |
337 | return -1; | |
338 | } | |
339 | break; | |
340 | ||
341 | case DANETLS_SELECTOR_SPKI: | |
348240c6 | 342 | if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data || |
919ba009 VD |
343 | dlen != (size_t)(p - data)) { |
344 | tlsa_free(t); | |
345 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY); | |
346 | return 0; | |
347 | } | |
348 | ||
349 | /* | |
350 | * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA | |
351 | * records that contain full bare keys of trust-anchors that are | |
352 | * not present in the wire chain. | |
353 | */ | |
354 | if (usage == DANETLS_USAGE_DANE_TA) | |
355 | t->spki = pkey; | |
356 | else | |
357 | EVP_PKEY_free(pkey); | |
358 | break; | |
359 | } | |
360 | } | |
361 | ||
362 | /*- | |
363 | * Find the right insertion point for the new record. | |
364 | * | |
365 | * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that | |
366 | * they can be processed first, as they require no chain building, and no | |
367 | * expiration or hostname checks. Because DANE-EE(3) is numerically | |
368 | * largest, this is accomplished via descending sort by "usage". | |
369 | * | |
370 | * We also sort in descending order by matching ordinal to simplify | |
371 | * the implementation of digest agility in the verification code. | |
372 | * | |
373 | * The choice of order for the selector is not significant, so we | |
374 | * use the same descending order for consistency. | |
375 | */ | |
9f6b22b8 VD |
376 | num = sk_danetls_record_num(dane->trecs); |
377 | for (i = 0; i < num; ++i) { | |
919ba009 | 378 | danetls_record *rec = sk_danetls_record_value(dane->trecs, i); |
9f6b22b8 | 379 | |
919ba009 VD |
380 | if (rec->usage > usage) |
381 | continue; | |
382 | if (rec->usage < usage) | |
383 | break; | |
384 | if (rec->selector > selector) | |
385 | continue; | |
386 | if (rec->selector < selector) | |
387 | break; | |
388 | if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype]) | |
389 | continue; | |
390 | break; | |
391 | } | |
392 | ||
393 | if (!sk_danetls_record_insert(dane->trecs, t, i)) { | |
394 | tlsa_free(t); | |
395 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
396 | return -1; | |
397 | } | |
398 | dane->umask |= DANETLS_USAGE_BIT(usage); | |
399 | ||
400 | return 1; | |
401 | } | |
402 | ||
d31fb0b5 RS |
403 | static void clear_ciphers(SSL *s) |
404 | { | |
405 | /* clear the current cipher */ | |
406 | ssl_clear_cipher_ctx(s); | |
407 | ssl_clear_hash_ctx(&s->read_hash); | |
408 | ssl_clear_hash_ctx(&s->write_hash); | |
409 | } | |
410 | ||
4f43d0e7 | 411 | int SSL_clear(SSL *s) |
0f113f3e | 412 | { |
0f113f3e MC |
413 | if (s->method == NULL) { |
414 | SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED); | |
a89325e4 | 415 | return 0; |
0f113f3e | 416 | } |
d02b48c6 | 417 | |
0f113f3e MC |
418 | if (ssl_clear_bad_session(s)) { |
419 | SSL_SESSION_free(s->session); | |
420 | s->session = NULL; | |
421 | } | |
9368f865 MC |
422 | SSL_SESSION_free(s->psksession); |
423 | s->psksession = NULL; | |
d62bfb39 | 424 | |
0f113f3e MC |
425 | s->error = 0; |
426 | s->hit = 0; | |
427 | s->shutdown = 0; | |
d02b48c6 | 428 | |
0f113f3e MC |
429 | if (s->renegotiate) { |
430 | SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR); | |
431 | return 0; | |
432 | } | |
d02b48c6 | 433 | |
fe3a3291 | 434 | ossl_statem_clear(s); |
413c4f45 | 435 | |
0f113f3e MC |
436 | s->version = s->method->version; |
437 | s->client_version = s->version; | |
438 | s->rwstate = SSL_NOTHING; | |
d02b48c6 | 439 | |
25aaa98a RS |
440 | BUF_MEM_free(s->init_buf); |
441 | s->init_buf = NULL; | |
d31fb0b5 | 442 | clear_ciphers(s); |
0f113f3e | 443 | s->first_packet = 0; |
d02b48c6 | 444 | |
44c04a2e MC |
445 | s->key_update = SSL_KEY_UPDATE_NONE; |
446 | ||
919ba009 VD |
447 | /* Reset DANE verification result state */ |
448 | s->dane.mdpth = -1; | |
449 | s->dane.pdpth = -1; | |
450 | X509_free(s->dane.mcert); | |
451 | s->dane.mcert = NULL; | |
452 | s->dane.mtlsa = NULL; | |
453 | ||
454 | /* Clear the verification result peername */ | |
455 | X509_VERIFY_PARAM_move_peername(s->param, NULL); | |
456 | ||
0f113f3e MC |
457 | /* |
458 | * Check to see if we were changed into a different method, if so, revert | |
459 | * back if we are not doing session-id reuse. | |
460 | */ | |
024f543c | 461 | if (!ossl_statem_get_in_handshake(s) && (s->session == NULL) |
0f113f3e MC |
462 | && (s->method != s->ctx->method)) { |
463 | s->method->ssl_free(s); | |
464 | s->method = s->ctx->method; | |
465 | if (!s->method->ssl_new(s)) | |
a89325e4 | 466 | return 0; |
b77f3ed1 MC |
467 | } else { |
468 | if (!s->method->ssl_clear(s)) | |
469 | return 0; | |
470 | } | |
33d23b87 | 471 | |
af9752e5 | 472 | RECORD_LAYER_clear(&s->rlayer); |
33d23b87 | 473 | |
a89325e4 | 474 | return 1; |
0f113f3e | 475 | } |
d02b48c6 | 476 | |
4f43d0e7 | 477 | /** Used to change an SSL_CTXs default SSL method type */ |
0f113f3e MC |
478 | int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) |
479 | { | |
480 | STACK_OF(SSL_CIPHER) *sk; | |
481 | ||
482 | ctx->method = meth; | |
483 | ||
484 | sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list), | |
485 | &(ctx->cipher_list_by_id), | |
486 | SSL_DEFAULT_CIPHER_LIST, ctx->cert); | |
487 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { | |
a230b26e | 488 | SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); |
0f113f3e MC |
489 | return (0); |
490 | } | |
491 | return (1); | |
492 | } | |
d02b48c6 | 493 | |
4f43d0e7 | 494 | SSL *SSL_new(SSL_CTX *ctx) |
0f113f3e MC |
495 | { |
496 | SSL *s; | |
497 | ||
498 | if (ctx == NULL) { | |
499 | SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX); | |
500 | return (NULL); | |
501 | } | |
502 | if (ctx->method == NULL) { | |
503 | SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); | |
504 | return (NULL); | |
505 | } | |
506 | ||
b51bce94 | 507 | s = OPENSSL_zalloc(sizeof(*s)); |
0f113f3e MC |
508 | if (s == NULL) |
509 | goto err; | |
0f113f3e | 510 | |
16203f7b AG |
511 | s->lock = CRYPTO_THREAD_lock_new(); |
512 | if (s->lock == NULL) { | |
513 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); | |
514 | OPENSSL_free(s); | |
515 | return NULL; | |
516 | } | |
517 | ||
c036e210 | 518 | RECORD_LAYER_init(&s->rlayer, s); |
28d59af8 | 519 | |
0f113f3e | 520 | s->options = ctx->options; |
5ae4ceb9 | 521 | s->dane.flags = ctx->dane.flags; |
7946ab33 KR |
522 | s->min_proto_version = ctx->min_proto_version; |
523 | s->max_proto_version = ctx->max_proto_version; | |
0f113f3e MC |
524 | s->mode = ctx->mode; |
525 | s->max_cert_list = ctx->max_cert_list; | |
0e04674e | 526 | s->references = 1; |
3fc8d856 | 527 | s->max_early_data = ctx->max_early_data; |
0f113f3e | 528 | |
2c382349 KR |
529 | /* |
530 | * Earlier library versions used to copy the pointer to the CERT, not | |
531 | * its contents; only when setting new parameters for the per-SSL | |
532 | * copy, ssl_cert_new would be called (and the direct reference to | |
533 | * the per-SSL_CTX settings would be lost, but those still were | |
534 | * indirectly accessed for various purposes, and for that reason they | |
535 | * used to be known as s->ctx->default_cert). Now we don't look at the | |
536 | * SSL_CTX's CERT after having duplicated it once. | |
537 | */ | |
538 | s->cert = ssl_cert_dup(ctx->cert); | |
539 | if (s->cert == NULL) | |
540 | goto err; | |
0f113f3e | 541 | |
52e1d7b1 | 542 | RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead); |
0f113f3e MC |
543 | s->msg_callback = ctx->msg_callback; |
544 | s->msg_callback_arg = ctx->msg_callback_arg; | |
545 | s->verify_mode = ctx->verify_mode; | |
546 | s->not_resumable_session_cb = ctx->not_resumable_session_cb; | |
c649d10d TS |
547 | s->record_padding_cb = ctx->record_padding_cb; |
548 | s->record_padding_arg = ctx->record_padding_arg; | |
549 | s->block_padding = ctx->block_padding; | |
0f113f3e | 550 | s->sid_ctx_length = ctx->sid_ctx_length; |
380a522f MC |
551 | if (!ossl_assert(s->sid_ctx_length <= sizeof s->sid_ctx)) |
552 | goto err; | |
0f113f3e MC |
553 | memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); |
554 | s->verify_callback = ctx->default_verify_callback; | |
555 | s->generate_session_id = ctx->generate_session_id; | |
556 | ||
557 | s->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 558 | if (s->param == NULL) |
0f113f3e MC |
559 | goto err; |
560 | X509_VERIFY_PARAM_inherit(s->param, ctx->param); | |
0f113f3e MC |
561 | s->quiet_shutdown = ctx->quiet_shutdown; |
562 | s->max_send_fragment = ctx->max_send_fragment; | |
d102d9df MC |
563 | s->split_send_fragment = ctx->split_send_fragment; |
564 | s->max_pipelines = ctx->max_pipelines; | |
94777c9c MC |
565 | if (s->max_pipelines > 1) |
566 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
dad78fb1 MC |
567 | if (ctx->default_read_buf_len > 0) |
568 | SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len); | |
bf21446a | 569 | |
16203f7b | 570 | SSL_CTX_up_ref(ctx); |
0f113f3e | 571 | s->ctx = ctx; |
aff8c126 RS |
572 | s->ext.debug_cb = 0; |
573 | s->ext.debug_arg = NULL; | |
574 | s->ext.ticket_expected = 0; | |
575 | s->ext.status_type = ctx->ext.status_type; | |
576 | s->ext.status_expected = 0; | |
577 | s->ext.ocsp.ids = NULL; | |
578 | s->ext.ocsp.exts = NULL; | |
579 | s->ext.ocsp.resp = NULL; | |
580 | s->ext.ocsp.resp_len = 0; | |
16203f7b | 581 | SSL_CTX_up_ref(ctx); |
222da979 | 582 | s->session_ctx = ctx; |
a230b26e | 583 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
584 | if (ctx->ext.ecpointformats) { |
585 | s->ext.ecpointformats = | |
586 | OPENSSL_memdup(ctx->ext.ecpointformats, | |
587 | ctx->ext.ecpointformats_len); | |
588 | if (!s->ext.ecpointformats) | |
0f113f3e | 589 | goto err; |
aff8c126 RS |
590 | s->ext.ecpointformats_len = |
591 | ctx->ext.ecpointformats_len; | |
592 | } | |
593 | if (ctx->ext.supportedgroups) { | |
594 | s->ext.supportedgroups = | |
595 | OPENSSL_memdup(ctx->ext.supportedgroups, | |
596 | ctx->ext.supportedgroups_len); | |
597 | if (!s->ext.supportedgroups) | |
0f113f3e | 598 | goto err; |
aff8c126 | 599 | s->ext.supportedgroups_len = ctx->ext.supportedgroups_len; |
0f113f3e | 600 | } |
a230b26e EK |
601 | #endif |
602 | #ifndef OPENSSL_NO_NEXTPROTONEG | |
aff8c126 | 603 | s->ext.npn = NULL; |
a230b26e | 604 | #endif |
6f017a8f | 605 | |
aff8c126 RS |
606 | if (s->ctx->ext.alpn) { |
607 | s->ext.alpn = OPENSSL_malloc(s->ctx->ext.alpn_len); | |
608 | if (s->ext.alpn == NULL) | |
0f113f3e | 609 | goto err; |
aff8c126 RS |
610 | memcpy(s->ext.alpn, s->ctx->ext.alpn, s->ctx->ext.alpn_len); |
611 | s->ext.alpn_len = s->ctx->ext.alpn_len; | |
0f113f3e | 612 | } |
d02b48c6 | 613 | |
696178ed | 614 | s->verified_chain = NULL; |
0f113f3e | 615 | s->verify_result = X509_V_OK; |
d02b48c6 | 616 | |
a974e64a MC |
617 | s->default_passwd_callback = ctx->default_passwd_callback; |
618 | s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata; | |
619 | ||
0f113f3e | 620 | s->method = ctx->method; |
d02b48c6 | 621 | |
44c04a2e MC |
622 | s->key_update = SSL_KEY_UPDATE_NONE; |
623 | ||
0f113f3e MC |
624 | if (!s->method->ssl_new(s)) |
625 | goto err; | |
d02b48c6 | 626 | |
0f113f3e | 627 | s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1; |
bf21446a | 628 | |
61986d32 | 629 | if (!SSL_clear(s)) |
69f68237 | 630 | goto err; |
58964a49 | 631 | |
25a807bc F |
632 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data)) |
633 | goto err; | |
58964a49 | 634 | |
ddac1974 | 635 | #ifndef OPENSSL_NO_PSK |
0f113f3e MC |
636 | s->psk_client_callback = ctx->psk_client_callback; |
637 | s->psk_server_callback = ctx->psk_server_callback; | |
ddac1974 | 638 | #endif |
f46184bd MC |
639 | s->psk_find_session_cb = ctx->psk_find_session_cb; |
640 | s->psk_use_session_cb = ctx->psk_use_session_cb; | |
ddac1974 | 641 | |
07bbc92c MC |
642 | s->job = NULL; |
643 | ||
ed29e82a RP |
644 | #ifndef OPENSSL_NO_CT |
645 | if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback, | |
a230b26e | 646 | ctx->ct_validation_callback_arg)) |
ed29e82a RP |
647 | goto err; |
648 | #endif | |
649 | ||
16203f7b | 650 | return s; |
0f113f3e | 651 | err: |
62adbcee | 652 | SSL_free(s); |
0f113f3e | 653 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); |
16203f7b | 654 | return NULL; |
0f113f3e | 655 | } |
d02b48c6 | 656 | |
e417070c RS |
657 | int SSL_is_dtls(const SSL *s) |
658 | { | |
659 | return SSL_IS_DTLS(s) ? 1 : 0; | |
660 | } | |
661 | ||
c5ebfcab | 662 | int SSL_up_ref(SSL *s) |
a18a31e4 | 663 | { |
16203f7b | 664 | int i; |
c5ebfcab | 665 | |
2f545ae4 | 666 | if (CRYPTO_UP_REF(&s->references, &i, s->lock) <= 0) |
c5ebfcab F |
667 | return 0; |
668 | ||
669 | REF_PRINT_COUNT("SSL", s); | |
670 | REF_ASSERT_ISNT(i < 2); | |
671 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
672 | } |
673 | ||
0f113f3e MC |
674 | int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, |
675 | unsigned int sid_ctx_len) | |
676 | { | |
677 | if (sid_ctx_len > sizeof ctx->sid_ctx) { | |
678 | SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT, | |
679 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
680 | return 0; | |
681 | } | |
682 | ctx->sid_ctx_length = sid_ctx_len; | |
683 | memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); | |
4eb77b26 BM |
684 | |
685 | return 1; | |
0f113f3e | 686 | } |
4eb77b26 | 687 | |
0f113f3e MC |
688 | int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, |
689 | unsigned int sid_ctx_len) | |
690 | { | |
691 | if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { | |
692 | SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT, | |
693 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
694 | return 0; | |
695 | } | |
696 | ssl->sid_ctx_length = sid_ctx_len; | |
697 | memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); | |
b4cadc6e BL |
698 | |
699 | return 1; | |
0f113f3e | 700 | } |
b4cadc6e | 701 | |
dc644fe2 | 702 | int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) |
0f113f3e | 703 | { |
16203f7b | 704 | CRYPTO_THREAD_write_lock(ctx->lock); |
0f113f3e | 705 | ctx->generate_session_id = cb; |
16203f7b | 706 | CRYPTO_THREAD_unlock(ctx->lock); |
0f113f3e MC |
707 | return 1; |
708 | } | |
dc644fe2 GT |
709 | |
710 | int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) | |
0f113f3e | 711 | { |
16203f7b | 712 | CRYPTO_THREAD_write_lock(ssl->lock); |
0f113f3e | 713 | ssl->generate_session_id = cb; |
16203f7b | 714 | CRYPTO_THREAD_unlock(ssl->lock); |
0f113f3e MC |
715 | return 1; |
716 | } | |
dc644fe2 | 717 | |
f85c9904 | 718 | int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, |
0f113f3e MC |
719 | unsigned int id_len) |
720 | { | |
721 | /* | |
722 | * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how | |
69687aa8 | 723 | * we can "construct" a session to give us the desired check - i.e. to |
0f113f3e MC |
724 | * find if there's a session in the hash table that would conflict with |
725 | * any new session built out of this id/id_len and the ssl_version in use | |
726 | * by this SSL. | |
727 | */ | |
728 | SSL_SESSION r, *p; | |
729 | ||
730 | if (id_len > sizeof r.session_id) | |
731 | return 0; | |
732 | ||
733 | r.ssl_version = ssl->version; | |
734 | r.session_id_length = id_len; | |
735 | memcpy(r.session_id, id, id_len); | |
736 | ||
e2bb9b9b TS |
737 | CRYPTO_THREAD_read_lock(ssl->session_ctx->lock); |
738 | p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r); | |
739 | CRYPTO_THREAD_unlock(ssl->session_ctx->lock); | |
0f113f3e MC |
740 | return (p != NULL); |
741 | } | |
dc644fe2 | 742 | |
bb7cd4e3 | 743 | int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) |
0f113f3e MC |
744 | { |
745 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
746 | } | |
bb7cd4e3 DSH |
747 | |
748 | int SSL_set_purpose(SSL *s, int purpose) | |
0f113f3e MC |
749 | { |
750 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
751 | } | |
926a56bf | 752 | |
bb7cd4e3 | 753 | int SSL_CTX_set_trust(SSL_CTX *s, int trust) |
0f113f3e MC |
754 | { |
755 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
756 | } | |
bb7cd4e3 DSH |
757 | |
758 | int SSL_set_trust(SSL *s, int trust) | |
0f113f3e MC |
759 | { |
760 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
761 | } | |
bb7cd4e3 | 762 | |
919ba009 VD |
763 | int SSL_set1_host(SSL *s, const char *hostname) |
764 | { | |
765 | return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); | |
766 | } | |
767 | ||
768 | int SSL_add1_host(SSL *s, const char *hostname) | |
769 | { | |
770 | return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0); | |
771 | } | |
772 | ||
773 | void SSL_set_hostflags(SSL *s, unsigned int flags) | |
774 | { | |
775 | X509_VERIFY_PARAM_set_hostflags(s->param, flags); | |
776 | } | |
777 | ||
4588cb44 | 778 | const char *SSL_get0_peername(SSL *s) |
919ba009 VD |
779 | { |
780 | return X509_VERIFY_PARAM_get0_peername(s->param); | |
781 | } | |
782 | ||
783 | int SSL_CTX_dane_enable(SSL_CTX *ctx) | |
784 | { | |
785 | return dane_ctx_enable(&ctx->dane); | |
786 | } | |
787 | ||
5ae4ceb9 VD |
788 | unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags) |
789 | { | |
790 | unsigned long orig = ctx->dane.flags; | |
791 | ||
792 | ctx->dane.flags |= flags; | |
793 | return orig; | |
794 | } | |
795 | ||
796 | unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags) | |
797 | { | |
798 | unsigned long orig = ctx->dane.flags; | |
799 | ||
800 | ctx->dane.flags &= ~flags; | |
801 | return orig; | |
802 | } | |
803 | ||
919ba009 VD |
804 | int SSL_dane_enable(SSL *s, const char *basedomain) |
805 | { | |
b9aec69a | 806 | SSL_DANE *dane = &s->dane; |
919ba009 VD |
807 | |
808 | if (s->ctx->dane.mdmax == 0) { | |
809 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED); | |
810 | return 0; | |
811 | } | |
812 | if (dane->trecs != NULL) { | |
813 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED); | |
814 | return 0; | |
815 | } | |
816 | ||
8d887efa VD |
817 | /* |
818 | * Default SNI name. This rejects empty names, while set1_host below | |
819 | * accepts them and disables host name checks. To avoid side-effects with | |
820 | * invalid input, set the SNI name first. | |
821 | */ | |
aff8c126 | 822 | if (s->ext.hostname == NULL) { |
dccd20d1 | 823 | if (!SSL_set_tlsext_host_name(s, basedomain)) { |
8d887efa | 824 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); |
dccd20d1 | 825 | return -1; |
8d887efa VD |
826 | } |
827 | } | |
828 | ||
919ba009 VD |
829 | /* Primary RFC6125 reference identifier */ |
830 | if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) { | |
831 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); | |
832 | return -1; | |
833 | } | |
834 | ||
919ba009 VD |
835 | dane->mdpth = -1; |
836 | dane->pdpth = -1; | |
837 | dane->dctx = &s->ctx->dane; | |
838 | dane->trecs = sk_danetls_record_new_null(); | |
839 | ||
840 | if (dane->trecs == NULL) { | |
841 | SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE); | |
842 | return -1; | |
843 | } | |
844 | return 1; | |
845 | } | |
846 | ||
5ae4ceb9 VD |
847 | unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags) |
848 | { | |
849 | unsigned long orig = ssl->dane.flags; | |
850 | ||
851 | ssl->dane.flags |= flags; | |
852 | return orig; | |
853 | } | |
854 | ||
855 | unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags) | |
856 | { | |
857 | unsigned long orig = ssl->dane.flags; | |
858 | ||
859 | ssl->dane.flags &= ~flags; | |
860 | return orig; | |
861 | } | |
862 | ||
919ba009 VD |
863 | int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki) |
864 | { | |
b9aec69a | 865 | SSL_DANE *dane = &s->dane; |
919ba009 | 866 | |
c0a445a9 | 867 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
868 | return -1; |
869 | if (dane->mtlsa) { | |
870 | if (mcert) | |
871 | *mcert = dane->mcert; | |
872 | if (mspki) | |
873 | *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL; | |
874 | } | |
875 | return dane->mdpth; | |
876 | } | |
877 | ||
878 | int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector, | |
879 | uint8_t *mtype, unsigned const char **data, size_t *dlen) | |
880 | { | |
b9aec69a | 881 | SSL_DANE *dane = &s->dane; |
919ba009 | 882 | |
c0a445a9 | 883 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
884 | return -1; |
885 | if (dane->mtlsa) { | |
886 | if (usage) | |
887 | *usage = dane->mtlsa->usage; | |
888 | if (selector) | |
889 | *selector = dane->mtlsa->selector; | |
890 | if (mtype) | |
891 | *mtype = dane->mtlsa->mtype; | |
892 | if (data) | |
893 | *data = dane->mtlsa->data; | |
894 | if (dlen) | |
895 | *dlen = dane->mtlsa->dlen; | |
896 | } | |
897 | return dane->mdpth; | |
898 | } | |
899 | ||
b9aec69a | 900 | SSL_DANE *SSL_get0_dane(SSL *s) |
919ba009 VD |
901 | { |
902 | return &s->dane; | |
903 | } | |
904 | ||
905 | int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector, | |
906 | uint8_t mtype, unsigned char *data, size_t dlen) | |
907 | { | |
908 | return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen); | |
909 | } | |
910 | ||
a230b26e EK |
911 | int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype, |
912 | uint8_t ord) | |
919ba009 VD |
913 | { |
914 | return dane_mtype_set(&ctx->dane, md, mtype, ord); | |
915 | } | |
916 | ||
ccf11751 | 917 | int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) |
0f113f3e MC |
918 | { |
919 | return X509_VERIFY_PARAM_set1(ctx->param, vpm); | |
920 | } | |
ccf11751 DSH |
921 | |
922 | int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) | |
0f113f3e MC |
923 | { |
924 | return X509_VERIFY_PARAM_set1(ssl->param, vpm); | |
925 | } | |
ccf11751 | 926 | |
7af31968 | 927 | X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx) |
0f113f3e MC |
928 | { |
929 | return ctx->param; | |
930 | } | |
7af31968 DSH |
931 | |
932 | X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl) | |
0f113f3e MC |
933 | { |
934 | return ssl->param; | |
935 | } | |
7af31968 | 936 | |
a5ee80b9 | 937 | void SSL_certs_clear(SSL *s) |
0f113f3e MC |
938 | { |
939 | ssl_cert_clear_certs(s->cert); | |
940 | } | |
a5ee80b9 | 941 | |
4f43d0e7 | 942 | void SSL_free(SSL *s) |
0f113f3e MC |
943 | { |
944 | int i; | |
58964a49 | 945 | |
0f113f3e MC |
946 | if (s == NULL) |
947 | return; | |
e03ddfae | 948 | |
2f545ae4 | 949 | CRYPTO_DOWN_REF(&s->references, &i, s->lock); |
f3f1cf84 | 950 | REF_PRINT_COUNT("SSL", s); |
0f113f3e MC |
951 | if (i > 0) |
952 | return; | |
f3f1cf84 | 953 | REF_ASSERT_ISNT(i < 0); |
d02b48c6 | 954 | |
222561fe | 955 | X509_VERIFY_PARAM_free(s->param); |
919ba009 | 956 | dane_final(&s->dane); |
0f113f3e MC |
957 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); |
958 | ||
b77f3ed1 | 959 | /* Ignore return value */ |
2e7dc7cd MC |
960 | ssl_free_wbio_buffer(s); |
961 | ||
65e2d672 | 962 | BIO_free_all(s->wbio); |
325cfa85 | 963 | BIO_free_all(s->rbio); |
0f113f3e | 964 | |
25aaa98a | 965 | BUF_MEM_free(s->init_buf); |
0f113f3e MC |
966 | |
967 | /* add extra stuff */ | |
25aaa98a RS |
968 | sk_SSL_CIPHER_free(s->cipher_list); |
969 | sk_SSL_CIPHER_free(s->cipher_list_by_id); | |
0f113f3e MC |
970 | |
971 | /* Make the next call work :-) */ | |
972 | if (s->session != NULL) { | |
973 | ssl_clear_bad_session(s); | |
974 | SSL_SESSION_free(s->session); | |
975 | } | |
9368f865 | 976 | SSL_SESSION_free(s->psksession); |
0f113f3e | 977 | |
d31fb0b5 | 978 | clear_ciphers(s); |
d02b48c6 | 979 | |
e0e920b1 | 980 | ssl_cert_free(s->cert); |
0f113f3e | 981 | /* Free up if allocated */ |
d02b48c6 | 982 | |
aff8c126 | 983 | OPENSSL_free(s->ext.hostname); |
222da979 | 984 | SSL_CTX_free(s->session_ctx); |
e481f9b9 | 985 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
986 | OPENSSL_free(s->ext.ecpointformats); |
987 | OPENSSL_free(s->ext.supportedgroups); | |
a230b26e | 988 | #endif /* OPENSSL_NO_EC */ |
aff8c126 | 989 | sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free); |
3e41ac35 | 990 | #ifndef OPENSSL_NO_OCSP |
aff8c126 | 991 | sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free); |
3e41ac35 | 992 | #endif |
ed29e82a RP |
993 | #ifndef OPENSSL_NO_CT |
994 | SCT_LIST_free(s->scts); | |
aff8c126 | 995 | OPENSSL_free(s->ext.scts); |
ed29e82a | 996 | #endif |
aff8c126 RS |
997 | OPENSSL_free(s->ext.ocsp.resp); |
998 | OPENSSL_free(s->ext.alpn); | |
cfef5027 | 999 | OPENSSL_free(s->ext.tls13_cookie); |
6b1bb98f | 1000 | OPENSSL_free(s->clienthello); |
0f113f3e | 1001 | |
fa7c2637 | 1002 | sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free); |
0f113f3e | 1003 | |
696178ed DSH |
1004 | sk_X509_pop_free(s->verified_chain, X509_free); |
1005 | ||
0f113f3e MC |
1006 | if (s->method != NULL) |
1007 | s->method->ssl_free(s); | |
1008 | ||
f161995e | 1009 | RECORD_LAYER_release(&s->rlayer); |
33d23b87 | 1010 | |
e0e920b1 | 1011 | SSL_CTX_free(s->ctx); |
7c3908dd | 1012 | |
ff75a257 MC |
1013 | ASYNC_WAIT_CTX_free(s->waitctx); |
1014 | ||
e481f9b9 | 1015 | #if !defined(OPENSSL_NO_NEXTPROTONEG) |
aff8c126 | 1016 | OPENSSL_free(s->ext.npn); |
ee2ffc27 BL |
1017 | #endif |
1018 | ||
e783bae2 | 1019 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 1020 | sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); |
0f113f3e MC |
1021 | #endif |
1022 | ||
16203f7b AG |
1023 | CRYPTO_THREAD_lock_free(s->lock); |
1024 | ||
0f113f3e MC |
1025 | OPENSSL_free(s); |
1026 | } | |
1027 | ||
65e2d672 | 1028 | void SSL_set0_rbio(SSL *s, BIO *rbio) |
3ffbe008 | 1029 | { |
65e2d672 | 1030 | BIO_free_all(s->rbio); |
3ffbe008 MC |
1031 | s->rbio = rbio; |
1032 | } | |
1033 | ||
65e2d672 | 1034 | void SSL_set0_wbio(SSL *s, BIO *wbio) |
0f113f3e MC |
1035 | { |
1036 | /* | |
1037 | * If the output buffering BIO is still in place, remove it | |
1038 | */ | |
2e7dc7cd MC |
1039 | if (s->bbio != NULL) |
1040 | s->wbio = BIO_pop(s->wbio); | |
1041 | ||
65e2d672 | 1042 | BIO_free_all(s->wbio); |
0f113f3e | 1043 | s->wbio = wbio; |
2e7dc7cd MC |
1044 | |
1045 | /* Re-attach |bbio| to the new |wbio|. */ | |
1046 | if (s->bbio != NULL) | |
1047 | s->wbio = BIO_push(s->bbio, s->wbio); | |
0f113f3e | 1048 | } |
d02b48c6 | 1049 | |
3ffbe008 MC |
1050 | void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) |
1051 | { | |
65e2d672 MC |
1052 | /* |
1053 | * For historical reasons, this function has many different cases in | |
1054 | * ownership handling. | |
1055 | */ | |
1056 | ||
1057 | /* If nothing has changed, do nothing */ | |
1058 | if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s)) | |
1059 | return; | |
1060 | ||
1061 | /* | |
1062 | * If the two arguments are equal then one fewer reference is granted by the | |
1063 | * caller than we want to take | |
1064 | */ | |
1065 | if (rbio != NULL && rbio == wbio) | |
1066 | BIO_up_ref(rbio); | |
1067 | ||
1068 | /* | |
1069 | * If only the wbio is changed only adopt one reference. | |
1070 | */ | |
1071 | if (rbio == SSL_get_rbio(s)) { | |
1072 | SSL_set0_wbio(s, wbio); | |
1073 | return; | |
1074 | } | |
1075 | /* | |
1076 | * There is an asymmetry here for historical reasons. If only the rbio is | |
1077 | * changed AND the rbio and wbio were originally different, then we only | |
1078 | * adopt one reference. | |
1079 | */ | |
1080 | if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) { | |
1081 | SSL_set0_rbio(s, rbio); | |
1082 | return; | |
1083 | } | |
1084 | ||
1085 | /* Otherwise, adopt both references. */ | |
1086 | SSL_set0_rbio(s, rbio); | |
1087 | SSL_set0_wbio(s, wbio); | |
3ffbe008 MC |
1088 | } |
1089 | ||
0821bcd4 | 1090 | BIO *SSL_get_rbio(const SSL *s) |
0f113f3e | 1091 | { |
2e7dc7cd | 1092 | return s->rbio; |
0f113f3e | 1093 | } |
d02b48c6 | 1094 | |
0821bcd4 | 1095 | BIO *SSL_get_wbio(const SSL *s) |
0f113f3e | 1096 | { |
2e7dc7cd MC |
1097 | if (s->bbio != NULL) { |
1098 | /* | |
1099 | * If |bbio| is active, the true caller-configured BIO is its | |
1100 | * |next_bio|. | |
1101 | */ | |
1102 | return BIO_next(s->bbio); | |
1103 | } | |
1104 | return s->wbio; | |
0f113f3e | 1105 | } |
d02b48c6 | 1106 | |
0821bcd4 | 1107 | int SSL_get_fd(const SSL *s) |
0f113f3e | 1108 | { |
2e7dc7cd | 1109 | return SSL_get_rfd(s); |
0f113f3e | 1110 | } |
24cbf3ef | 1111 | |
0821bcd4 | 1112 | int SSL_get_rfd(const SSL *s) |
0f113f3e MC |
1113 | { |
1114 | int ret = -1; | |
1115 | BIO *b, *r; | |
1116 | ||
1117 | b = SSL_get_rbio(s); | |
1118 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1119 | if (r != NULL) | |
1120 | BIO_get_fd(r, &ret); | |
1121 | return (ret); | |
1122 | } | |
d02b48c6 | 1123 | |
0821bcd4 | 1124 | int SSL_get_wfd(const SSL *s) |
0f113f3e MC |
1125 | { |
1126 | int ret = -1; | |
1127 | BIO *b, *r; | |
1128 | ||
1129 | b = SSL_get_wbio(s); | |
1130 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1131 | if (r != NULL) | |
1132 | BIO_get_fd(r, &ret); | |
1133 | return (ret); | |
1134 | } | |
24cbf3ef | 1135 | |
bc36ee62 | 1136 | #ifndef OPENSSL_NO_SOCK |
0f113f3e MC |
1137 | int SSL_set_fd(SSL *s, int fd) |
1138 | { | |
1139 | int ret = 0; | |
1140 | BIO *bio = NULL; | |
1141 | ||
1142 | bio = BIO_new(BIO_s_socket()); | |
1143 | ||
1144 | if (bio == NULL) { | |
1145 | SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB); | |
1146 | goto err; | |
1147 | } | |
1148 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
1149 | SSL_set_bio(s, bio, bio); | |
1150 | ret = 1; | |
1151 | err: | |
1152 | return (ret); | |
1153 | } | |
d02b48c6 | 1154 | |
0f113f3e MC |
1155 | int SSL_set_wfd(SSL *s, int fd) |
1156 | { | |
2e7dc7cd | 1157 | BIO *rbio = SSL_get_rbio(s); |
0f113f3e | 1158 | |
2e7dc7cd MC |
1159 | if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET |
1160 | || (int)BIO_get_fd(rbio, NULL) != fd) { | |
1161 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1162 | |
1163 | if (bio == NULL) { | |
1164 | SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1165 | return 0; |
0f113f3e MC |
1166 | } |
1167 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
65e2d672 | 1168 | SSL_set0_wbio(s, bio); |
2e7dc7cd | 1169 | } else { |
65e2d672 MC |
1170 | BIO_up_ref(rbio); |
1171 | SSL_set0_wbio(s, rbio); | |
2e7dc7cd MC |
1172 | } |
1173 | return 1; | |
0f113f3e MC |
1174 | } |
1175 | ||
1176 | int SSL_set_rfd(SSL *s, int fd) | |
1177 | { | |
2e7dc7cd | 1178 | BIO *wbio = SSL_get_wbio(s); |
0f113f3e | 1179 | |
2e7dc7cd MC |
1180 | if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET |
1181 | || ((int)BIO_get_fd(wbio, NULL) != fd)) { | |
1182 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1183 | |
1184 | if (bio == NULL) { | |
1185 | SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1186 | return 0; |
0f113f3e MC |
1187 | } |
1188 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
65e2d672 | 1189 | SSL_set0_rbio(s, bio); |
2e7dc7cd | 1190 | } else { |
65e2d672 MC |
1191 | BIO_up_ref(wbio); |
1192 | SSL_set0_rbio(s, wbio); | |
2e7dc7cd MC |
1193 | } |
1194 | ||
1195 | return 1; | |
0f113f3e MC |
1196 | } |
1197 | #endif | |
ca03109c BM |
1198 | |
1199 | /* return length of latest Finished message we sent, copy to 'buf' */ | |
0821bcd4 | 1200 | size_t SSL_get_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1201 | { |
1202 | size_t ret = 0; | |
1203 | ||
1204 | if (s->s3 != NULL) { | |
1205 | ret = s->s3->tmp.finish_md_len; | |
1206 | if (count > ret) | |
1207 | count = ret; | |
1208 | memcpy(buf, s->s3->tmp.finish_md, count); | |
1209 | } | |
1210 | return ret; | |
1211 | } | |
ca03109c BM |
1212 | |
1213 | /* return length of latest Finished message we expected, copy to 'buf' */ | |
0821bcd4 | 1214 | size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1215 | { |
1216 | size_t ret = 0; | |
ca03109c | 1217 | |
0f113f3e MC |
1218 | if (s->s3 != NULL) { |
1219 | ret = s->s3->tmp.peer_finish_md_len; | |
1220 | if (count > ret) | |
1221 | count = ret; | |
1222 | memcpy(buf, s->s3->tmp.peer_finish_md, count); | |
1223 | } | |
1224 | return ret; | |
1225 | } | |
ca03109c | 1226 | |
0821bcd4 | 1227 | int SSL_get_verify_mode(const SSL *s) |
0f113f3e MC |
1228 | { |
1229 | return (s->verify_mode); | |
1230 | } | |
d02b48c6 | 1231 | |
0821bcd4 | 1232 | int SSL_get_verify_depth(const SSL *s) |
0f113f3e MC |
1233 | { |
1234 | return X509_VERIFY_PARAM_get_depth(s->param); | |
1235 | } | |
7f89714e | 1236 | |
0f113f3e MC |
1237 | int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) { |
1238 | return (s->verify_callback); | |
1239 | } | |
d02b48c6 | 1240 | |
0821bcd4 | 1241 | int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) |
0f113f3e MC |
1242 | { |
1243 | return (ctx->verify_mode); | |
1244 | } | |
d02b48c6 | 1245 | |
0821bcd4 | 1246 | int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) |
0f113f3e MC |
1247 | { |
1248 | return X509_VERIFY_PARAM_get_depth(ctx->param); | |
1249 | } | |
1250 | ||
1251 | int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) { | |
1252 | return (ctx->default_verify_callback); | |
1253 | } | |
1254 | ||
1255 | void SSL_set_verify(SSL *s, int mode, | |
1256 | int (*callback) (int ok, X509_STORE_CTX *ctx)) | |
1257 | { | |
1258 | s->verify_mode = mode; | |
1259 | if (callback != NULL) | |
1260 | s->verify_callback = callback; | |
1261 | } | |
1262 | ||
1263 | void SSL_set_verify_depth(SSL *s, int depth) | |
1264 | { | |
1265 | X509_VERIFY_PARAM_set_depth(s->param, depth); | |
1266 | } | |
1267 | ||
1268 | void SSL_set_read_ahead(SSL *s, int yes) | |
1269 | { | |
52e1d7b1 | 1270 | RECORD_LAYER_set_read_ahead(&s->rlayer, yes); |
0f113f3e | 1271 | } |
d02b48c6 | 1272 | |
0821bcd4 | 1273 | int SSL_get_read_ahead(const SSL *s) |
0f113f3e | 1274 | { |
52e1d7b1 | 1275 | return RECORD_LAYER_get_read_ahead(&s->rlayer); |
0f113f3e | 1276 | } |
d02b48c6 | 1277 | |
0821bcd4 | 1278 | int SSL_pending(const SSL *s) |
0f113f3e | 1279 | { |
8b0e934a MC |
1280 | size_t pending = s->method->ssl_pending(s); |
1281 | ||
0f113f3e MC |
1282 | /* |
1283 | * SSL_pending cannot work properly if read-ahead is enabled | |
1284 | * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is | |
1285 | * impossible to fix since SSL_pending cannot report errors that may be | |
1286 | * observed while scanning the new data. (Note that SSL_pending() is | |
1287 | * often used as a boolean value, so we'd better not return -1.) | |
8b0e934a MC |
1288 | * |
1289 | * SSL_pending also cannot work properly if the value >INT_MAX. In that case | |
1290 | * we just return INT_MAX. | |
0f113f3e | 1291 | */ |
348240c6 | 1292 | return pending < INT_MAX ? (int)pending : INT_MAX; |
0f113f3e | 1293 | } |
d02b48c6 | 1294 | |
49580f25 MC |
1295 | int SSL_has_pending(const SSL *s) |
1296 | { | |
1297 | /* | |
1298 | * Similar to SSL_pending() but returns a 1 to indicate that we have | |
1299 | * unprocessed data available or 0 otherwise (as opposed to the number of | |
1300 | * bytes available). Unlike SSL_pending() this will take into account | |
1301 | * read_ahead data. A 1 return simply indicates that we have unprocessed | |
1302 | * data. That data may not result in any application data, or we may fail | |
1303 | * to parse the records for some reason. | |
1304 | */ | |
b8c49611 | 1305 | if (RECORD_LAYER_processed_read_pending(&s->rlayer)) |
49580f25 MC |
1306 | return 1; |
1307 | ||
1308 | return RECORD_LAYER_read_pending(&s->rlayer); | |
1309 | } | |
1310 | ||
0821bcd4 | 1311 | X509 *SSL_get_peer_certificate(const SSL *s) |
0f113f3e MC |
1312 | { |
1313 | X509 *r; | |
d02b48c6 | 1314 | |
0f113f3e MC |
1315 | if ((s == NULL) || (s->session == NULL)) |
1316 | r = NULL; | |
1317 | else | |
1318 | r = s->session->peer; | |
d02b48c6 | 1319 | |
0f113f3e MC |
1320 | if (r == NULL) |
1321 | return (r); | |
d02b48c6 | 1322 | |
05f0fb9f | 1323 | X509_up_ref(r); |
0f113f3e MC |
1324 | |
1325 | return (r); | |
1326 | } | |
d02b48c6 | 1327 | |
0821bcd4 | 1328 | STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) |
0f113f3e MC |
1329 | { |
1330 | STACK_OF(X509) *r; | |
1331 | ||
c34b0f99 | 1332 | if ((s == NULL) || (s->session == NULL)) |
0f113f3e MC |
1333 | r = NULL; |
1334 | else | |
c34b0f99 | 1335 | r = s->session->peer_chain; |
0f113f3e MC |
1336 | |
1337 | /* | |
1338 | * If we are a client, cert_chain includes the peer's own certificate; if | |
1339 | * we are a server, it does not. | |
1340 | */ | |
1341 | ||
1342 | return (r); | |
1343 | } | |
1344 | ||
1345 | /* | |
1346 | * Now in theory, since the calling process own 't' it should be safe to | |
1347 | * modify. We need to be able to read f without being hassled | |
1348 | */ | |
17dd65e6 | 1349 | int SSL_copy_session_id(SSL *t, const SSL *f) |
0f113f3e | 1350 | { |
16203f7b | 1351 | int i; |
0f113f3e | 1352 | /* Do we need to to SSL locking? */ |
61986d32 | 1353 | if (!SSL_set_session(t, SSL_get_session(f))) { |
17dd65e6 | 1354 | return 0; |
69f68237 | 1355 | } |
0f113f3e MC |
1356 | |
1357 | /* | |
87d9cafa | 1358 | * what if we are setup for one protocol version but want to talk another |
0f113f3e MC |
1359 | */ |
1360 | if (t->method != f->method) { | |
919ba009 VD |
1361 | t->method->ssl_free(t); |
1362 | t->method = f->method; | |
1363 | if (t->method->ssl_new(t) == 0) | |
1364 | return 0; | |
0f113f3e MC |
1365 | } |
1366 | ||
2f545ae4 | 1367 | CRYPTO_UP_REF(&f->cert->references, &i, f->cert->lock); |
24a0d393 KR |
1368 | ssl_cert_free(t->cert); |
1369 | t->cert = f->cert; | |
348240c6 | 1370 | if (!SSL_set_session_id_context(t, f->sid_ctx, (int)f->sid_ctx_length)) { |
17dd65e6 | 1371 | return 0; |
69f68237 | 1372 | } |
17dd65e6 MC |
1373 | |
1374 | return 1; | |
0f113f3e | 1375 | } |
d02b48c6 | 1376 | |
58964a49 | 1377 | /* Fix this so it checks all the valid key/cert options */ |
0821bcd4 | 1378 | int SSL_CTX_check_private_key(const SSL_CTX *ctx) |
0f113f3e | 1379 | { |
a230b26e EK |
1380 | if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) { |
1381 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
0f113f3e MC |
1382 | return (0); |
1383 | } | |
1384 | if (ctx->cert->key->privatekey == NULL) { | |
a230b26e | 1385 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); |
0f113f3e MC |
1386 | return (0); |
1387 | } | |
1388 | return (X509_check_private_key | |
1389 | (ctx->cert->key->x509, ctx->cert->key->privatekey)); | |
1390 | } | |
d02b48c6 | 1391 | |
58964a49 | 1392 | /* Fix this function so that it takes an optional type parameter */ |
0821bcd4 | 1393 | int SSL_check_private_key(const SSL *ssl) |
0f113f3e MC |
1394 | { |
1395 | if (ssl == NULL) { | |
1396 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER); | |
1397 | return (0); | |
1398 | } | |
0f113f3e MC |
1399 | if (ssl->cert->key->x509 == NULL) { |
1400 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
1401 | return (0); | |
1402 | } | |
1403 | if (ssl->cert->key->privatekey == NULL) { | |
1404 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); | |
1405 | return (0); | |
1406 | } | |
1407 | return (X509_check_private_key(ssl->cert->key->x509, | |
1408 | ssl->cert->key->privatekey)); | |
1409 | } | |
d02b48c6 | 1410 | |
07bbc92c MC |
1411 | int SSL_waiting_for_async(SSL *s) |
1412 | { | |
e8aa8b6c | 1413 | if (s->job) |
82676094 MC |
1414 | return 1; |
1415 | ||
07bbc92c MC |
1416 | return 0; |
1417 | } | |
1418 | ||
ff75a257 | 1419 | int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds) |
f4da39d2 | 1420 | { |
ff75a257 MC |
1421 | ASYNC_WAIT_CTX *ctx = s->waitctx; |
1422 | ||
1423 | if (ctx == NULL) | |
1424 | return 0; | |
1425 | return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds); | |
1426 | } | |
f4da39d2 | 1427 | |
ff75a257 MC |
1428 | int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds, |
1429 | OSSL_ASYNC_FD *delfd, size_t *numdelfds) | |
1430 | { | |
1431 | ASYNC_WAIT_CTX *ctx = s->waitctx; | |
1432 | ||
1433 | if (ctx == NULL) | |
1434 | return 0; | |
1435 | return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd, | |
1436 | numdelfds); | |
f4da39d2 MC |
1437 | } |
1438 | ||
4f43d0e7 | 1439 | int SSL_accept(SSL *s) |
0f113f3e | 1440 | { |
c4c32155 | 1441 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1442 | /* Not properly initialized yet */ |
1443 | SSL_set_accept_state(s); | |
07bbc92c | 1444 | } |
add2f5ca MC |
1445 | |
1446 | return SSL_do_handshake(s); | |
0f113f3e | 1447 | } |
d02b48c6 | 1448 | |
4f43d0e7 | 1449 | int SSL_connect(SSL *s) |
0f113f3e | 1450 | { |
c4c32155 | 1451 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1452 | /* Not properly initialized yet */ |
1453 | SSL_set_connect_state(s); | |
add2f5ca | 1454 | } |
b31b04d9 | 1455 | |
add2f5ca | 1456 | return SSL_do_handshake(s); |
0f113f3e | 1457 | } |
d02b48c6 | 1458 | |
0821bcd4 | 1459 | long SSL_get_default_timeout(const SSL *s) |
0f113f3e MC |
1460 | { |
1461 | return (s->method->get_timeout()); | |
1462 | } | |
1463 | ||
7fecbf6f | 1464 | static int ssl_start_async_job(SSL *s, struct ssl_async_args *args, |
a230b26e EK |
1465 | int (*func) (void *)) |
1466 | { | |
add2f5ca | 1467 | int ret; |
ff75a257 MC |
1468 | if (s->waitctx == NULL) { |
1469 | s->waitctx = ASYNC_WAIT_CTX_new(); | |
1470 | if (s->waitctx == NULL) | |
1471 | return -1; | |
1472 | } | |
e8aa8b6c | 1473 | switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args, |
a230b26e | 1474 | sizeof(struct ssl_async_args))) { |
add2f5ca MC |
1475 | case ASYNC_ERR: |
1476 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1477 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC); |
add2f5ca MC |
1478 | return -1; |
1479 | case ASYNC_PAUSE: | |
1480 | s->rwstate = SSL_ASYNC_PAUSED; | |
1481 | return -1; | |
fc7f190c MC |
1482 | case ASYNC_NO_JOBS: |
1483 | s->rwstate = SSL_ASYNC_NO_JOBS; | |
1484 | return -1; | |
add2f5ca MC |
1485 | case ASYNC_FINISH: |
1486 | s->job = NULL; | |
1487 | return ret; | |
1488 | default: | |
1489 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1490 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR); |
add2f5ca MC |
1491 | /* Shouldn't happen */ |
1492 | return -1; | |
1493 | } | |
1494 | } | |
07bbc92c | 1495 | |
add2f5ca | 1496 | static int ssl_io_intern(void *vargs) |
07bbc92c MC |
1497 | { |
1498 | struct ssl_async_args *args; | |
1499 | SSL *s; | |
1500 | void *buf; | |
348240c6 | 1501 | size_t num; |
07bbc92c MC |
1502 | |
1503 | args = (struct ssl_async_args *)vargs; | |
1504 | s = args->s; | |
1505 | buf = args->buf; | |
1506 | num = args->num; | |
ec447924 MC |
1507 | switch (args->type) { |
1508 | case READFUNC: | |
7ee8627f | 1509 | return args->f.func_read(s, buf, num, &s->asyncrw); |
ec447924 | 1510 | case WRITEFUNC: |
7ee8627f | 1511 | return args->f.func_write(s, buf, num, &s->asyncrw); |
ec447924 MC |
1512 | case OTHERFUNC: |
1513 | return args->f.func_other(s); | |
1514 | } | |
1515 | return -1; | |
07bbc92c MC |
1516 | } |
1517 | ||
4ee7d3f9 | 1518 | int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes) |
0f113f3e | 1519 | { |
c4c32155 | 1520 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1521 | SSLerr(SSL_F_SSL_READ_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1522 | return -1; |
1523 | } | |
1524 | ||
1525 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
1526 | s->rwstate = SSL_NOTHING; | |
4ee7d3f9 | 1527 | return 0; |
0f113f3e | 1528 | } |
07bbc92c | 1529 | |
564547e4 MC |
1530 | if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY |
1531 | || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) { | |
0a5ece5b MC |
1532 | SSLerr(SSL_F_SSL_READ_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1533 | return 0; | |
1534 | } | |
564547e4 MC |
1535 | /* |
1536 | * If we are a client and haven't received the ServerHello etc then we | |
1537 | * better do that | |
1538 | */ | |
1539 | ossl_statem_check_finish_init(s, 0); | |
0a5ece5b | 1540 | |
e8aa8b6c | 1541 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1542 | struct ssl_async_args args; |
eda75751 | 1543 | int ret; |
add2f5ca MC |
1544 | |
1545 | args.s = s; | |
1546 | args.buf = buf; | |
1547 | args.num = num; | |
ec447924 MC |
1548 | args.type = READFUNC; |
1549 | args.f.func_read = s->method->ssl_read; | |
add2f5ca | 1550 | |
eda75751 | 1551 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
54105ddd | 1552 | *readbytes = s->asyncrw; |
eda75751 | 1553 | return ret; |
07bbc92c | 1554 | } else { |
54105ddd | 1555 | return s->method->ssl_read(s, buf, num, readbytes); |
07bbc92c | 1556 | } |
0f113f3e MC |
1557 | } |
1558 | ||
4ee7d3f9 | 1559 | int SSL_read(SSL *s, void *buf, int num) |
eda75751 MC |
1560 | { |
1561 | int ret; | |
54105ddd | 1562 | size_t readbytes; |
eda75751 MC |
1563 | |
1564 | if (num < 0) { | |
4ee7d3f9 | 1565 | SSLerr(SSL_F_SSL_READ, SSL_R_BAD_LENGTH); |
eda75751 MC |
1566 | return -1; |
1567 | } | |
1568 | ||
4ee7d3f9 | 1569 | ret = ssl_read_internal(s, buf, (size_t)num, &readbytes); |
eda75751 MC |
1570 | |
1571 | /* | |
1572 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1573 | * <= INT_MAX | |
1574 | */ | |
1575 | if (ret > 0) | |
54105ddd | 1576 | ret = (int)readbytes; |
eda75751 MC |
1577 | |
1578 | return ret; | |
1579 | } | |
1580 | ||
4ee7d3f9 KR |
1581 | int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes) |
1582 | { | |
1583 | int ret = ssl_read_internal(s, buf, num, readbytes); | |
1584 | ||
1585 | if (ret < 0) | |
1586 | ret = 0; | |
1587 | return ret; | |
1588 | } | |
1589 | ||
f533fbd4 | 1590 | int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes) |
d781d247 MC |
1591 | { |
1592 | int ret; | |
1593 | ||
1594 | if (!s->server) { | |
f533fbd4 MC |
1595 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1596 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1597 | } |
1598 | ||
d781d247 MC |
1599 | switch (s->early_data_state) { |
1600 | case SSL_EARLY_DATA_NONE: | |
1601 | if (!SSL_in_before(s)) { | |
f533fbd4 MC |
1602 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, |
1603 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
1604 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1605 | } |
1606 | /* fall through */ | |
1607 | ||
1608 | case SSL_EARLY_DATA_ACCEPT_RETRY: | |
1609 | s->early_data_state = SSL_EARLY_DATA_ACCEPTING; | |
1610 | ret = SSL_accept(s); | |
1611 | if (ret <= 0) { | |
1612 | /* NBIO or error */ | |
1613 | s->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY; | |
f533fbd4 | 1614 | return SSL_READ_EARLY_DATA_ERROR; |
d781d247 MC |
1615 | } |
1616 | /* fall through */ | |
1617 | ||
1618 | case SSL_EARLY_DATA_READ_RETRY: | |
1619 | if (s->ext.early_data == SSL_EARLY_DATA_ACCEPTED) { | |
1620 | s->early_data_state = SSL_EARLY_DATA_READING; | |
1621 | ret = SSL_read_ex(s, buf, num, readbytes); | |
1622 | /* | |
ef6c191b MC |
1623 | * State machine will update early_data_state to |
1624 | * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData | |
1625 | * message | |
d781d247 MC |
1626 | */ |
1627 | if (ret > 0 || (ret <= 0 && s->early_data_state | |
1628 | != SSL_EARLY_DATA_FINISHED_READING)) { | |
1629 | s->early_data_state = SSL_EARLY_DATA_READ_RETRY; | |
f533fbd4 MC |
1630 | return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS |
1631 | : SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1632 | } |
1633 | } else { | |
1634 | s->early_data_state = SSL_EARLY_DATA_FINISHED_READING; | |
1635 | } | |
1636 | *readbytes = 0; | |
f533fbd4 | 1637 | return SSL_READ_EARLY_DATA_FINISH; |
d781d247 MC |
1638 | |
1639 | default: | |
f533fbd4 MC |
1640 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1641 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1642 | } |
1643 | } | |
1644 | ||
f5b519c4 | 1645 | int SSL_get_early_data_status(const SSL *s) |
1ea4d09a MC |
1646 | { |
1647 | return s->ext.early_data; | |
1648 | } | |
1649 | ||
4ee7d3f9 | 1650 | static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes) |
0f113f3e | 1651 | { |
c4c32155 | 1652 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1653 | SSLerr(SSL_F_SSL_PEEK_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1654 | return -1; |
1655 | } | |
1656 | ||
1657 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
4ee7d3f9 | 1658 | return 0; |
0f113f3e | 1659 | } |
e8aa8b6c | 1660 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1661 | struct ssl_async_args args; |
eda75751 | 1662 | int ret; |
0f113f3e | 1663 | |
add2f5ca MC |
1664 | args.s = s; |
1665 | args.buf = buf; | |
1666 | args.num = num; | |
ec447924 MC |
1667 | args.type = READFUNC; |
1668 | args.f.func_read = s->method->ssl_peek; | |
07bbc92c | 1669 | |
eda75751 | 1670 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
54105ddd | 1671 | *readbytes = s->asyncrw; |
eda75751 | 1672 | return ret; |
add2f5ca | 1673 | } else { |
54105ddd | 1674 | return s->method->ssl_peek(s, buf, num, readbytes); |
add2f5ca | 1675 | } |
07bbc92c MC |
1676 | } |
1677 | ||
4ee7d3f9 | 1678 | int SSL_peek(SSL *s, void *buf, int num) |
7ee8627f MC |
1679 | { |
1680 | int ret; | |
4ee7d3f9 | 1681 | size_t readbytes; |
7ee8627f MC |
1682 | |
1683 | if (num < 0) { | |
4ee7d3f9 | 1684 | SSLerr(SSL_F_SSL_PEEK, SSL_R_BAD_LENGTH); |
7ee8627f MC |
1685 | return -1; |
1686 | } | |
1687 | ||
4ee7d3f9 | 1688 | ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes); |
7ee8627f MC |
1689 | |
1690 | /* | |
1691 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1692 | * <= INT_MAX | |
1693 | */ | |
1694 | if (ret > 0) | |
4ee7d3f9 | 1695 | ret = (int)readbytes; |
7ee8627f MC |
1696 | |
1697 | return ret; | |
1698 | } | |
1699 | ||
4ee7d3f9 KR |
1700 | |
1701 | int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes) | |
1702 | { | |
1703 | int ret = ssl_peek_internal(s, buf, num, readbytes); | |
1704 | ||
1705 | if (ret < 0) | |
1706 | ret = 0; | |
1707 | return ret; | |
1708 | } | |
1709 | ||
1710 | int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written) | |
0f113f3e | 1711 | { |
c4c32155 | 1712 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1713 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1714 | return -1; |
1715 | } | |
1716 | ||
1717 | if (s->shutdown & SSL_SENT_SHUTDOWN) { | |
1718 | s->rwstate = SSL_NOTHING; | |
4ee7d3f9 KR |
1719 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_PROTOCOL_IS_SHUTDOWN); |
1720 | return -1; | |
0f113f3e | 1721 | } |
07bbc92c | 1722 | |
ef6c191b | 1723 | if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY |
09f28874 MC |
1724 | || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY |
1725 | || s->early_data_state == SSL_EARLY_DATA_READ_RETRY) { | |
0a5ece5b | 1726 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
49e7fe12 | 1727 | return 0; |
0a5ece5b | 1728 | } |
564547e4 MC |
1729 | /* If we are a client and haven't sent the Finished we better do that */ |
1730 | ossl_statem_check_finish_init(s, 1); | |
49e7fe12 | 1731 | |
e8aa8b6c | 1732 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
7ee8627f | 1733 | int ret; |
add2f5ca MC |
1734 | struct ssl_async_args args; |
1735 | ||
1736 | args.s = s; | |
1737 | args.buf = (void *)buf; | |
1738 | args.num = num; | |
ec447924 MC |
1739 | args.type = WRITEFUNC; |
1740 | args.f.func_write = s->method->ssl_write; | |
add2f5ca | 1741 | |
7ee8627f MC |
1742 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
1743 | *written = s->asyncrw; | |
1744 | return ret; | |
07bbc92c | 1745 | } else { |
7ee8627f | 1746 | return s->method->ssl_write(s, buf, num, written); |
07bbc92c | 1747 | } |
0f113f3e | 1748 | } |
d02b48c6 | 1749 | |
4ee7d3f9 KR |
1750 | int SSL_write(SSL *s, const void *buf, int num) |
1751 | { | |
1752 | int ret; | |
1753 | size_t written; | |
1754 | ||
1755 | if (num < 0) { | |
1756 | SSLerr(SSL_F_SSL_WRITE, SSL_R_BAD_LENGTH); | |
1757 | return -1; | |
1758 | } | |
1759 | ||
1760 | ret = ssl_write_internal(s, buf, (size_t)num, &written); | |
1761 | ||
1762 | /* | |
1763 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1764 | * <= INT_MAX | |
1765 | */ | |
1766 | if (ret > 0) | |
1767 | ret = (int)written; | |
1768 | ||
1769 | return ret; | |
1770 | } | |
1771 | ||
1772 | int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written) | |
1773 | { | |
1774 | int ret = ssl_write_internal(s, buf, num, written); | |
1775 | ||
1776 | if (ret < 0) | |
1777 | ret = 0; | |
1778 | return ret; | |
1779 | } | |
1780 | ||
0665b4ed | 1781 | int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written) |
49e7fe12 | 1782 | { |
a0cb628b | 1783 | int ret, early_data_state; |
49e7fe12 | 1784 | |
49e7fe12 MC |
1785 | switch (s->early_data_state) { |
1786 | case SSL_EARLY_DATA_NONE: | |
09f28874 MC |
1787 | if (s->server |
1788 | || !SSL_in_before(s) | |
0a5ece5b MC |
1789 | || s->session == NULL |
1790 | || s->session->ext.max_early_data == 0) { | |
09f28874 MC |
1791 | SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, |
1792 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
49e7fe12 MC |
1793 | return 0; |
1794 | } | |
1795 | /* fall through */ | |
1796 | ||
1797 | case SSL_EARLY_DATA_CONNECT_RETRY: | |
1798 | s->early_data_state = SSL_EARLY_DATA_CONNECTING; | |
1799 | ret = SSL_connect(s); | |
1800 | if (ret <= 0) { | |
1801 | /* NBIO or error */ | |
1802 | s->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY; | |
1803 | return 0; | |
1804 | } | |
1805 | /* fall through */ | |
1806 | ||
1807 | case SSL_EARLY_DATA_WRITE_RETRY: | |
1808 | s->early_data_state = SSL_EARLY_DATA_WRITING; | |
1809 | ret = SSL_write_ex(s, buf, num, written); | |
1810 | s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY; | |
1811 | return ret; | |
1812 | ||
116d0da5 | 1813 | case SSL_EARLY_DATA_FINISHED_READING: |
a0cb628b MC |
1814 | case SSL_EARLY_DATA_READ_RETRY: |
1815 | early_data_state = s->early_data_state; | |
09f28874 MC |
1816 | /* We are a server writing to an unauthenticated client */ |
1817 | s->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING; | |
1818 | ret = SSL_write_ex(s, buf, num, written); | |
bbea9f2c | 1819 | s->early_data_state = early_data_state; |
09f28874 MC |
1820 | return ret; |
1821 | ||
49e7fe12 | 1822 | default: |
09f28874 | 1823 | SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
49e7fe12 MC |
1824 | return 0; |
1825 | } | |
1826 | } | |
1827 | ||
4f43d0e7 | 1828 | int SSL_shutdown(SSL *s) |
0f113f3e MC |
1829 | { |
1830 | /* | |
1831 | * Note that this function behaves differently from what one might | |
1832 | * expect. Return values are 0 for no success (yet), 1 for success; but | |
1833 | * calling it once is usually not enough, even if blocking I/O is used | |
1834 | * (see ssl3_shutdown). | |
1835 | */ | |
1836 | ||
c4c32155 | 1837 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1838 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); |
1839 | return -1; | |
1840 | } | |
1841 | ||
64f9f406 | 1842 | if (!SSL_in_init(s)) { |
e8aa8b6c | 1843 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
64f9f406 | 1844 | struct ssl_async_args args; |
ec447924 | 1845 | |
64f9f406 MC |
1846 | args.s = s; |
1847 | args.type = OTHERFUNC; | |
1848 | args.f.func_other = s->method->ssl_shutdown; | |
ec447924 | 1849 | |
64f9f406 MC |
1850 | return ssl_start_async_job(s, &args, ssl_io_intern); |
1851 | } else { | |
1852 | return s->method->ssl_shutdown(s); | |
1853 | } | |
ec447924 | 1854 | } else { |
64f9f406 MC |
1855 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT); |
1856 | return -1; | |
ec447924 | 1857 | } |
0f113f3e | 1858 | } |
d02b48c6 | 1859 | |
4fbfe86a | 1860 | int SSL_key_update(SSL *s, int updatetype) |
44c04a2e | 1861 | { |
f14afcaa | 1862 | /* |
a9998e2f | 1863 | * TODO(TLS1.3): How will applications know whether TLSv1.3 has been |
f14afcaa MC |
1864 | * negotiated, and that it is appropriate to call SSL_key_update() instead |
1865 | * of SSL_renegotiate(). | |
1866 | */ | |
44c04a2e MC |
1867 | if (!SSL_IS_TLS13(s)) { |
1868 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_WRONG_SSL_VERSION); | |
1869 | return 0; | |
1870 | } | |
1871 | ||
1872 | if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED | |
1873 | && updatetype != SSL_KEY_UPDATE_REQUESTED) { | |
1874 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_INVALID_KEY_UPDATE_TYPE); | |
1875 | return 0; | |
1876 | } | |
1877 | ||
1878 | if (!SSL_is_init_finished(s)) { | |
1879 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_STILL_IN_INIT); | |
1880 | return 0; | |
1881 | } | |
1882 | ||
1883 | ossl_statem_set_in_init(s, 1); | |
44c04a2e | 1884 | s->key_update = updatetype; |
44c04a2e MC |
1885 | return 1; |
1886 | } | |
1887 | ||
4fbfe86a | 1888 | int SSL_get_key_update_type(SSL *s) |
53d1d07d MC |
1889 | { |
1890 | return s->key_update; | |
1891 | } | |
1892 | ||
4f43d0e7 | 1893 | int SSL_renegotiate(SSL *s) |
0f113f3e | 1894 | { |
44c04a2e MC |
1895 | if (SSL_IS_TLS13(s)) { |
1896 | SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_WRONG_SSL_VERSION); | |
2c0980d2 | 1897 | return 0; |
44c04a2e | 1898 | } |
cda6b998 | 1899 | |
db0f35dd TS |
1900 | if ((s->options & SSL_OP_NO_RENEGOTIATION)) { |
1901 | SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_NO_RENEGOTIATION); | |
1902 | return 0; | |
1903 | } | |
44959ee4 | 1904 | |
db0f35dd | 1905 | s->renegotiate = 1; |
0f113f3e | 1906 | s->new_session = 1; |
44959ee4 | 1907 | |
0f113f3e MC |
1908 | return (s->method->ssl_renegotiate(s)); |
1909 | } | |
d02b48c6 | 1910 | |
44959ee4 | 1911 | int SSL_renegotiate_abbreviated(SSL *s) |
0f113f3e | 1912 | { |
db0f35dd TS |
1913 | if (SSL_IS_TLS13(s)) { |
1914 | SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_WRONG_SSL_VERSION); | |
2c0980d2 | 1915 | return 0; |
db0f35dd | 1916 | } |
cda6b998 | 1917 | |
db0f35dd TS |
1918 | if ((s->options & SSL_OP_NO_RENEGOTIATION)) { |
1919 | SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_NO_RENEGOTIATION); | |
1920 | return 0; | |
1921 | } | |
c519e89f | 1922 | |
db0f35dd | 1923 | s->renegotiate = 1; |
0f113f3e | 1924 | s->new_session = 0; |
c519e89f | 1925 | |
0f113f3e MC |
1926 | return (s->method->ssl_renegotiate(s)); |
1927 | } | |
44959ee4 | 1928 | |
6b0e9fac | 1929 | int SSL_renegotiate_pending(SSL *s) |
0f113f3e MC |
1930 | { |
1931 | /* | |
1932 | * becomes true when negotiation is requested; false again once a | |
1933 | * handshake has finished | |
1934 | */ | |
1935 | return (s->renegotiate != 0); | |
1936 | } | |
1937 | ||
1938 | long SSL_ctrl(SSL *s, int cmd, long larg, void *parg) | |
1939 | { | |
1940 | long l; | |
1941 | ||
1942 | switch (cmd) { | |
1943 | case SSL_CTRL_GET_READ_AHEAD: | |
52e1d7b1 | 1944 | return (RECORD_LAYER_get_read_ahead(&s->rlayer)); |
0f113f3e | 1945 | case SSL_CTRL_SET_READ_AHEAD: |
52e1d7b1 MC |
1946 | l = RECORD_LAYER_get_read_ahead(&s->rlayer); |
1947 | RECORD_LAYER_set_read_ahead(&s->rlayer, larg); | |
0f113f3e MC |
1948 | return (l); |
1949 | ||
1950 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
1951 | s->msg_callback_arg = parg; | |
1952 | return 1; | |
1953 | ||
0f113f3e MC |
1954 | case SSL_CTRL_MODE: |
1955 | return (s->mode |= larg); | |
1956 | case SSL_CTRL_CLEAR_MODE: | |
1957 | return (s->mode &= ~larg); | |
1958 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
348240c6 | 1959 | return (long)(s->max_cert_list); |
0f113f3e | 1960 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
1961 | if (larg < 0) |
1962 | return 0; | |
1963 | l = (long)s->max_cert_list; | |
1964 | s->max_cert_list = (size_t)larg; | |
1965 | return l; | |
0f113f3e MC |
1966 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: |
1967 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
1968 | return 0; | |
1969 | s->max_send_fragment = larg; | |
d102d9df MC |
1970 | if (s->max_send_fragment < s->split_send_fragment) |
1971 | s->split_send_fragment = s->max_send_fragment; | |
1972 | return 1; | |
1973 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: | |
7ee8627f | 1974 | if ((size_t)larg > s->max_send_fragment || larg == 0) |
d102d9df MC |
1975 | return 0; |
1976 | s->split_send_fragment = larg; | |
0f113f3e | 1977 | return 1; |
d102d9df MC |
1978 | case SSL_CTRL_SET_MAX_PIPELINES: |
1979 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
1980 | return 0; | |
1981 | s->max_pipelines = larg; | |
94777c9c MC |
1982 | if (larg > 1) |
1983 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
07077415 | 1984 | return 1; |
0f113f3e MC |
1985 | case SSL_CTRL_GET_RI_SUPPORT: |
1986 | if (s->s3) | |
1987 | return s->s3->send_connection_binding; | |
1988 | else | |
1989 | return 0; | |
1990 | case SSL_CTRL_CERT_FLAGS: | |
1991 | return (s->cert->cert_flags |= larg); | |
1992 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
1993 | return (s->cert->cert_flags &= ~larg); | |
1994 | ||
1995 | case SSL_CTRL_GET_RAW_CIPHERLIST: | |
1996 | if (parg) { | |
76106e60 | 1997 | if (s->s3->tmp.ciphers_raw == NULL) |
0f113f3e | 1998 | return 0; |
76106e60 DSH |
1999 | *(unsigned char **)parg = s->s3->tmp.ciphers_raw; |
2000 | return (int)s->s3->tmp.ciphers_rawlen; | |
e9fa092e EK |
2001 | } else { |
2002 | return TLS_CIPHER_LEN; | |
2003 | } | |
c5364614 | 2004 | case SSL_CTRL_GET_EXTMS_SUPPORT: |
024f543c | 2005 | if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s)) |
a230b26e | 2006 | return -1; |
dccd20d1 | 2007 | if (s->session->flags & SSL_SESS_FLAG_EXTMS) |
c5364614 DSH |
2008 | return 1; |
2009 | else | |
2010 | return 0; | |
7946ab33 | 2011 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
4fa52141 VD |
2012 | return ssl_set_version_bound(s->ctx->method->version, (int)larg, |
2013 | &s->min_proto_version); | |
7946ab33 | 2014 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
4fa52141 VD |
2015 | return ssl_set_version_bound(s->ctx->method->version, (int)larg, |
2016 | &s->max_proto_version); | |
0f113f3e MC |
2017 | default: |
2018 | return (s->method->ssl_ctrl(s, cmd, larg, parg)); | |
2019 | } | |
2020 | } | |
2021 | ||
2022 | long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
2023 | { | |
2024 | switch (cmd) { | |
2025 | case SSL_CTRL_SET_MSG_CALLBACK: | |
2026 | s->msg_callback = (void (*) | |
2027 | (int write_p, int version, int content_type, | |
2028 | const void *buf, size_t len, SSL *ssl, | |
2029 | void *arg))(fp); | |
2030 | return 1; | |
2031 | ||
2032 | default: | |
2033 | return (s->method->ssl_callback_ctrl(s, cmd, fp)); | |
2034 | } | |
2035 | } | |
d3442bc7 | 2036 | |
3c1d6bbc | 2037 | LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx) |
0f113f3e MC |
2038 | { |
2039 | return ctx->sessions; | |
2040 | } | |
2041 | ||
2042 | long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
2043 | { | |
2044 | long l; | |
2045 | /* For some cases with ctx == NULL perform syntax checks */ | |
2046 | if (ctx == NULL) { | |
2047 | switch (cmd) { | |
14536c8c | 2048 | #ifndef OPENSSL_NO_EC |
de4d764e MC |
2049 | case SSL_CTRL_SET_GROUPS_LIST: |
2050 | return tls1_set_groups_list(NULL, NULL, parg); | |
0f113f3e MC |
2051 | #endif |
2052 | case SSL_CTRL_SET_SIGALGS_LIST: | |
2053 | case SSL_CTRL_SET_CLIENT_SIGALGS_LIST: | |
2054 | return tls1_set_sigalgs_list(NULL, parg, 0); | |
2055 | default: | |
2056 | return 0; | |
2057 | } | |
2058 | } | |
2059 | ||
2060 | switch (cmd) { | |
2061 | case SSL_CTRL_GET_READ_AHEAD: | |
2062 | return (ctx->read_ahead); | |
2063 | case SSL_CTRL_SET_READ_AHEAD: | |
2064 | l = ctx->read_ahead; | |
2065 | ctx->read_ahead = larg; | |
2066 | return (l); | |
2067 | ||
2068 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
2069 | ctx->msg_callback_arg = parg; | |
2070 | return 1; | |
2071 | ||
2072 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
348240c6 | 2073 | return (long)(ctx->max_cert_list); |
0f113f3e | 2074 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
2075 | if (larg < 0) |
2076 | return 0; | |
2077 | l = (long)ctx->max_cert_list; | |
2078 | ctx->max_cert_list = (size_t)larg; | |
2079 | return l; | |
0f113f3e MC |
2080 | |
2081 | case SSL_CTRL_SET_SESS_CACHE_SIZE: | |
348240c6 MC |
2082 | if (larg < 0) |
2083 | return 0; | |
2084 | l = (long)ctx->session_cache_size; | |
2085 | ctx->session_cache_size = (size_t)larg; | |
2086 | return l; | |
0f113f3e | 2087 | case SSL_CTRL_GET_SESS_CACHE_SIZE: |
348240c6 | 2088 | return (long)(ctx->session_cache_size); |
0f113f3e MC |
2089 | case SSL_CTRL_SET_SESS_CACHE_MODE: |
2090 | l = ctx->session_cache_mode; | |
2091 | ctx->session_cache_mode = larg; | |
2092 | return (l); | |
2093 | case SSL_CTRL_GET_SESS_CACHE_MODE: | |
2094 | return (ctx->session_cache_mode); | |
2095 | ||
2096 | case SSL_CTRL_SESS_NUMBER: | |
2097 | return (lh_SSL_SESSION_num_items(ctx->sessions)); | |
2098 | case SSL_CTRL_SESS_CONNECT: | |
2099 | return (ctx->stats.sess_connect); | |
2100 | case SSL_CTRL_SESS_CONNECT_GOOD: | |
2101 | return (ctx->stats.sess_connect_good); | |
2102 | case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: | |
2103 | return (ctx->stats.sess_connect_renegotiate); | |
2104 | case SSL_CTRL_SESS_ACCEPT: | |
2105 | return (ctx->stats.sess_accept); | |
2106 | case SSL_CTRL_SESS_ACCEPT_GOOD: | |
2107 | return (ctx->stats.sess_accept_good); | |
2108 | case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: | |
2109 | return (ctx->stats.sess_accept_renegotiate); | |
2110 | case SSL_CTRL_SESS_HIT: | |
2111 | return (ctx->stats.sess_hit); | |
2112 | case SSL_CTRL_SESS_CB_HIT: | |
2113 | return (ctx->stats.sess_cb_hit); | |
2114 | case SSL_CTRL_SESS_MISSES: | |
2115 | return (ctx->stats.sess_miss); | |
2116 | case SSL_CTRL_SESS_TIMEOUTS: | |
2117 | return (ctx->stats.sess_timeout); | |
2118 | case SSL_CTRL_SESS_CACHE_FULL: | |
2119 | return (ctx->stats.sess_cache_full); | |
0f113f3e MC |
2120 | case SSL_CTRL_MODE: |
2121 | return (ctx->mode |= larg); | |
2122 | case SSL_CTRL_CLEAR_MODE: | |
2123 | return (ctx->mode &= ~larg); | |
2124 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
2125 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
2126 | return 0; | |
2127 | ctx->max_send_fragment = larg; | |
d102d9df | 2128 | if (ctx->max_send_fragment < ctx->split_send_fragment) |
bfb155c1 | 2129 | ctx->split_send_fragment = ctx->max_send_fragment; |
0f113f3e | 2130 | return 1; |
d102d9df | 2131 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: |
7ee8627f | 2132 | if ((size_t)larg > ctx->max_send_fragment || larg == 0) |
d102d9df MC |
2133 | return 0; |
2134 | ctx->split_send_fragment = larg; | |
2135 | return 1; | |
2136 | case SSL_CTRL_SET_MAX_PIPELINES: | |
2137 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
2138 | return 0; | |
2139 | ctx->max_pipelines = larg; | |
07077415 | 2140 | return 1; |
0f113f3e MC |
2141 | case SSL_CTRL_CERT_FLAGS: |
2142 | return (ctx->cert->cert_flags |= larg); | |
2143 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
2144 | return (ctx->cert->cert_flags &= ~larg); | |
7946ab33 | 2145 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
4fa52141 VD |
2146 | return ssl_set_version_bound(ctx->method->version, (int)larg, |
2147 | &ctx->min_proto_version); | |
7946ab33 | 2148 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
4fa52141 VD |
2149 | return ssl_set_version_bound(ctx->method->version, (int)larg, |
2150 | &ctx->max_proto_version); | |
0f113f3e MC |
2151 | default: |
2152 | return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg)); | |
2153 | } | |
2154 | } | |
2155 | ||
2156 | long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
2157 | { | |
2158 | switch (cmd) { | |
2159 | case SSL_CTRL_SET_MSG_CALLBACK: | |
2160 | ctx->msg_callback = (void (*) | |
2161 | (int write_p, int version, int content_type, | |
2162 | const void *buf, size_t len, SSL *ssl, | |
2163 | void *arg))(fp); | |
2164 | return 1; | |
2165 | ||
2166 | default: | |
2167 | return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp)); | |
2168 | } | |
2169 | } | |
d3442bc7 | 2170 | |
ccd86b68 | 2171 | int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) |
0f113f3e | 2172 | { |
90d9e49a DSH |
2173 | if (a->id > b->id) |
2174 | return 1; | |
2175 | if (a->id < b->id) | |
2176 | return -1; | |
2177 | return 0; | |
0f113f3e MC |
2178 | } |
2179 | ||
2180 | int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, | |
2181 | const SSL_CIPHER *const *bp) | |
2182 | { | |
90d9e49a DSH |
2183 | if ((*ap)->id > (*bp)->id) |
2184 | return 1; | |
2185 | if ((*ap)->id < (*bp)->id) | |
2186 | return -1; | |
2187 | return 0; | |
0f113f3e | 2188 | } |
d02b48c6 | 2189 | |
4f43d0e7 | 2190 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2191 | * preference */ |
0821bcd4 | 2192 | STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) |
0f113f3e MC |
2193 | { |
2194 | if (s != NULL) { | |
2195 | if (s->cipher_list != NULL) { | |
2196 | return (s->cipher_list); | |
2197 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { | |
2198 | return (s->ctx->cipher_list); | |
2199 | } | |
2200 | } | |
2201 | return (NULL); | |
2202 | } | |
2203 | ||
831eef2c NM |
2204 | STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s) |
2205 | { | |
2206 | if ((s == NULL) || (s->session == NULL) || !s->server) | |
2207 | return NULL; | |
2208 | return s->session->ciphers; | |
2209 | } | |
2210 | ||
8b8e5bed | 2211 | STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s) |
0f113f3e MC |
2212 | { |
2213 | STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers; | |
2214 | int i; | |
2215 | ciphers = SSL_get_ciphers(s); | |
2216 | if (!ciphers) | |
2217 | return NULL; | |
2218 | ssl_set_client_disabled(s); | |
2219 | for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { | |
2220 | const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i); | |
8af91fd9 | 2221 | if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) { |
0f113f3e MC |
2222 | if (!sk) |
2223 | sk = sk_SSL_CIPHER_new_null(); | |
2224 | if (!sk) | |
2225 | return NULL; | |
2226 | if (!sk_SSL_CIPHER_push(sk, c)) { | |
2227 | sk_SSL_CIPHER_free(sk); | |
2228 | return NULL; | |
2229 | } | |
2230 | } | |
2231 | } | |
2232 | return sk; | |
2233 | } | |
8b8e5bed | 2234 | |
4f43d0e7 | 2235 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2236 | * algorithm id */ |
f73e07cf | 2237 | STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) |
0f113f3e MC |
2238 | { |
2239 | if (s != NULL) { | |
2240 | if (s->cipher_list_by_id != NULL) { | |
2241 | return (s->cipher_list_by_id); | |
2242 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) { | |
2243 | return (s->ctx->cipher_list_by_id); | |
2244 | } | |
2245 | } | |
2246 | return (NULL); | |
2247 | } | |
d02b48c6 | 2248 | |
4f43d0e7 | 2249 | /** The old interface to get the same thing as SSL_get_ciphers() */ |
0f113f3e MC |
2250 | const char *SSL_get_cipher_list(const SSL *s, int n) |
2251 | { | |
4a640fb6 | 2252 | const SSL_CIPHER *c; |
0f113f3e MC |
2253 | STACK_OF(SSL_CIPHER) *sk; |
2254 | ||
2255 | if (s == NULL) | |
2256 | return (NULL); | |
2257 | sk = SSL_get_ciphers(s); | |
2258 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) | |
2259 | return (NULL); | |
2260 | c = sk_SSL_CIPHER_value(sk, n); | |
2261 | if (c == NULL) | |
2262 | return (NULL); | |
2263 | return (c->name); | |
2264 | } | |
d02b48c6 | 2265 | |
9d5ac953 KY |
2266 | /** return a STACK of the ciphers available for the SSL_CTX and in order of |
2267 | * preference */ | |
2268 | STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx) | |
2269 | { | |
2270 | if (ctx != NULL) | |
2271 | return ctx->cipher_list; | |
2272 | return NULL; | |
2273 | } | |
2274 | ||
25f923dd | 2275 | /** specify the ciphers to be used by default by the SSL_CTX */ |
018e57c7 | 2276 | int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) |
0f113f3e MC |
2277 | { |
2278 | STACK_OF(SSL_CIPHER) *sk; | |
2279 | ||
2280 | sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, | |
2281 | &ctx->cipher_list_by_id, str, ctx->cert); | |
2282 | /* | |
2283 | * ssl_create_cipher_list may return an empty stack if it was unable to | |
2284 | * find a cipher matching the given rule string (for example if the rule | |
2285 | * string specifies a cipher which has been disabled). This is not an | |
2286 | * error as far as ssl_create_cipher_list is concerned, and hence | |
2287 | * ctx->cipher_list and ctx->cipher_list_by_id has been updated. | |
2288 | */ | |
2289 | if (sk == NULL) | |
2290 | return 0; | |
2291 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2292 | SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2293 | return 0; | |
2294 | } | |
2295 | return 1; | |
2296 | } | |
d02b48c6 | 2297 | |
4f43d0e7 | 2298 | /** specify the ciphers to be used by the SSL */ |
0f113f3e MC |
2299 | int SSL_set_cipher_list(SSL *s, const char *str) |
2300 | { | |
2301 | STACK_OF(SSL_CIPHER) *sk; | |
2302 | ||
2303 | sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, | |
2304 | &s->cipher_list_by_id, str, s->cert); | |
2305 | /* see comment in SSL_CTX_set_cipher_list */ | |
2306 | if (sk == NULL) | |
2307 | return 0; | |
2308 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2309 | SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2310 | return 0; | |
2311 | } | |
2312 | return 1; | |
2313 | } | |
d02b48c6 | 2314 | |
0f113f3e MC |
2315 | char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len) |
2316 | { | |
2317 | char *p; | |
2318 | STACK_OF(SSL_CIPHER) *sk; | |
4a640fb6 | 2319 | const SSL_CIPHER *c; |
0f113f3e MC |
2320 | int i; |
2321 | ||
2322 | if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2)) | |
2323 | return (NULL); | |
2324 | ||
2325 | p = buf; | |
2326 | sk = s->session->ciphers; | |
2327 | ||
2328 | if (sk_SSL_CIPHER_num(sk) == 0) | |
2329 | return NULL; | |
2330 | ||
2331 | for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { | |
2332 | int n; | |
2333 | ||
2334 | c = sk_SSL_CIPHER_value(sk, i); | |
2335 | n = strlen(c->name); | |
2336 | if (n + 1 > len) { | |
2337 | if (p != buf) | |
2338 | --p; | |
2339 | *p = '\0'; | |
2340 | return buf; | |
2341 | } | |
a89c9a0d | 2342 | memcpy(p, c->name, n + 1); |
0f113f3e MC |
2343 | p += n; |
2344 | *(p++) = ':'; | |
2345 | len -= n + 1; | |
2346 | } | |
2347 | p[-1] = '\0'; | |
2348 | return (buf); | |
2349 | } | |
2350 | ||
52b8dad8 | 2351 | /** return a servername extension value if provided in Client Hello, or NULL. |
f1fd4544 | 2352 | * So far, only host_name types are defined (RFC 3546). |
ed3883d2 BM |
2353 | */ |
2354 | ||
f1fd4544 | 2355 | const char *SSL_get_servername(const SSL *s, const int type) |
0f113f3e MC |
2356 | { |
2357 | if (type != TLSEXT_NAMETYPE_host_name) | |
2358 | return NULL; | |
a13c20f6 | 2359 | |
aff8c126 RS |
2360 | return s->session && !s->ext.hostname ? |
2361 | s->session->ext.hostname : s->ext.hostname; | |
0f113f3e | 2362 | } |
ed3883d2 | 2363 | |
f1fd4544 | 2364 | int SSL_get_servername_type(const SSL *s) |
0f113f3e MC |
2365 | { |
2366 | if (s->session | |
aff8c126 RS |
2367 | && (!s->ext.hostname ? s->session-> |
2368 | ext.hostname : s->ext.hostname)) | |
0f113f3e MC |
2369 | return TLSEXT_NAMETYPE_host_name; |
2370 | return -1; | |
2371 | } | |
ee2ffc27 | 2372 | |
0f113f3e MC |
2373 | /* |
2374 | * SSL_select_next_proto implements the standard protocol selection. It is | |
ee2ffc27 | 2375 | * expected that this function is called from the callback set by |
0f113f3e MC |
2376 | * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a |
2377 | * vector of 8-bit, length prefixed byte strings. The length byte itself is | |
2378 | * not included in the length. A byte string of length 0 is invalid. No byte | |
2379 | * string may be truncated. The current, but experimental algorithm for | |
2380 | * selecting the protocol is: 1) If the server doesn't support NPN then this | |
2381 | * is indicated to the callback. In this case, the client application has to | |
2382 | * abort the connection or have a default application level protocol. 2) If | |
2383 | * the server supports NPN, but advertises an empty list then the client | |
f430ba31 | 2384 | * selects the first protocol in its list, but indicates via the API that this |
0f113f3e MC |
2385 | * fallback case was enacted. 3) Otherwise, the client finds the first |
2386 | * protocol in the server's list that it supports and selects this protocol. | |
2387 | * This is because it's assumed that the server has better information about | |
2388 | * which protocol a client should use. 4) If the client doesn't support any | |
2389 | * of the server's advertised protocols, then this is treated the same as | |
2390 | * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was | |
2391 | * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. | |
ee2ffc27 | 2392 | */ |
0f113f3e MC |
2393 | int SSL_select_next_proto(unsigned char **out, unsigned char *outlen, |
2394 | const unsigned char *server, | |
2395 | unsigned int server_len, | |
a230b26e | 2396 | const unsigned char *client, unsigned int client_len) |
0f113f3e MC |
2397 | { |
2398 | unsigned int i, j; | |
2399 | const unsigned char *result; | |
2400 | int status = OPENSSL_NPN_UNSUPPORTED; | |
2401 | ||
2402 | /* | |
2403 | * For each protocol in server preference order, see if we support it. | |
2404 | */ | |
2405 | for (i = 0; i < server_len;) { | |
2406 | for (j = 0; j < client_len;) { | |
2407 | if (server[i] == client[j] && | |
2408 | memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) { | |
2409 | /* We found a match */ | |
2410 | result = &server[i]; | |
2411 | status = OPENSSL_NPN_NEGOTIATED; | |
2412 | goto found; | |
2413 | } | |
2414 | j += client[j]; | |
2415 | j++; | |
2416 | } | |
2417 | i += server[i]; | |
2418 | i++; | |
2419 | } | |
2420 | ||
2421 | /* There's no overlap between our protocols and the server's list. */ | |
2422 | result = client; | |
2423 | status = OPENSSL_NPN_NO_OVERLAP; | |
2424 | ||
2425 | found: | |
2426 | *out = (unsigned char *)result + 1; | |
2427 | *outlen = result[0]; | |
2428 | return status; | |
2429 | } | |
ee2ffc27 | 2430 | |
e481f9b9 | 2431 | #ifndef OPENSSL_NO_NEXTPROTONEG |
0f113f3e MC |
2432 | /* |
2433 | * SSL_get0_next_proto_negotiated sets *data and *len to point to the | |
2434 | * client's requested protocol for this connection and returns 0. If the | |
2435 | * client didn't request any protocol, then *data is set to NULL. Note that | |
2436 | * the client can request any protocol it chooses. The value returned from | |
2437 | * this function need not be a member of the list of supported protocols | |
ee2ffc27 BL |
2438 | * provided by the callback. |
2439 | */ | |
0f113f3e MC |
2440 | void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, |
2441 | unsigned *len) | |
2442 | { | |
aff8c126 | 2443 | *data = s->ext.npn; |
0f113f3e MC |
2444 | if (!*data) { |
2445 | *len = 0; | |
2446 | } else { | |
aff8c126 | 2447 | *len = (unsigned int)s->ext.npn_len; |
0f113f3e MC |
2448 | } |
2449 | } | |
2450 | ||
2451 | /* | |
aff8c126 | 2452 | * SSL_CTX_set_npn_advertised_cb sets a callback that is called when |
0f113f3e MC |
2453 | * a TLS server needs a list of supported protocols for Next Protocol |
2454 | * Negotiation. The returned list must be in wire format. The list is | |
2455 | * returned by setting |out| to point to it and |outlen| to its length. This | |
2456 | * memory will not be modified, but one should assume that the SSL* keeps a | |
2457 | * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it | |
2458 | * wishes to advertise. Otherwise, no such extension will be included in the | |
2459 | * ServerHello. | |
2460 | */ | |
aff8c126 | 2461 | void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx, |
8cbfcc70 | 2462 | SSL_CTX_npn_advertised_cb_func cb, |
aff8c126 | 2463 | void *arg) |
0f113f3e | 2464 | { |
aff8c126 RS |
2465 | ctx->ext.npn_advertised_cb = cb; |
2466 | ctx->ext.npn_advertised_cb_arg = arg; | |
0f113f3e MC |
2467 | } |
2468 | ||
2469 | /* | |
2470 | * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a | |
ee2ffc27 BL |
2471 | * client needs to select a protocol from the server's provided list. |out| |
2472 | * must be set to point to the selected protocol (which may be within |in|). | |
0f113f3e MC |
2473 | * The length of the protocol name must be written into |outlen|. The |
2474 | * server's advertised protocols are provided in |in| and |inlen|. The | |
2475 | * callback can assume that |in| is syntactically valid. The client must | |
2476 | * select a protocol. It is fatal to the connection if this callback returns | |
2477 | * a value other than SSL_TLSEXT_ERR_OK. | |
ee2ffc27 | 2478 | */ |
aff8c126 | 2479 | void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx, |
8cbfcc70 | 2480 | SSL_CTX_npn_select_cb_func cb, |
aff8c126 | 2481 | void *arg) |
0f113f3e | 2482 | { |
aff8c126 RS |
2483 | ctx->ext.npn_select_cb = cb; |
2484 | ctx->ext.npn_select_cb_arg = arg; | |
0f113f3e | 2485 | } |
e481f9b9 | 2486 | #endif |
a398f821 | 2487 | |
0f113f3e MC |
2488 | /* |
2489 | * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|. | |
6f017a8f | 2490 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2491 | * length-prefixed strings). Returns 0 on success. |
2492 | */ | |
2493 | int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, | |
817cd0d5 | 2494 | unsigned int protos_len) |
0f113f3e | 2495 | { |
aff8c126 RS |
2496 | OPENSSL_free(ctx->ext.alpn); |
2497 | ctx->ext.alpn = OPENSSL_memdup(protos, protos_len); | |
2498 | if (ctx->ext.alpn == NULL) { | |
72e9be3d | 2499 | SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); |
0f113f3e | 2500 | return 1; |
72e9be3d | 2501 | } |
aff8c126 | 2502 | ctx->ext.alpn_len = protos_len; |
0f113f3e MC |
2503 | |
2504 | return 0; | |
2505 | } | |
2506 | ||
2507 | /* | |
2508 | * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|. | |
6f017a8f | 2509 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2510 | * length-prefixed strings). Returns 0 on success. |
2511 | */ | |
2512 | int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, | |
817cd0d5 | 2513 | unsigned int protos_len) |
0f113f3e | 2514 | { |
aff8c126 RS |
2515 | OPENSSL_free(ssl->ext.alpn); |
2516 | ssl->ext.alpn = OPENSSL_memdup(protos, protos_len); | |
2517 | if (ssl->ext.alpn == NULL) { | |
72e9be3d | 2518 | SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); |
0f113f3e | 2519 | return 1; |
72e9be3d | 2520 | } |
aff8c126 | 2521 | ssl->ext.alpn_len = protos_len; |
0f113f3e MC |
2522 | |
2523 | return 0; | |
2524 | } | |
2525 | ||
2526 | /* | |
2527 | * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is | |
2528 | * called during ClientHello processing in order to select an ALPN protocol | |
2529 | * from the client's list of offered protocols. | |
2530 | */ | |
2531 | void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx, | |
8cbfcc70 RS |
2532 | SSL_CTX_alpn_select_cb_func cb, |
2533 | void *arg) | |
0f113f3e | 2534 | { |
aff8c126 RS |
2535 | ctx->ext.alpn_select_cb = cb; |
2536 | ctx->ext.alpn_select_cb_arg = arg; | |
0f113f3e MC |
2537 | } |
2538 | ||
2539 | /* | |
69687aa8 F |
2540 | * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|. |
2541 | * On return it sets |*data| to point to |*len| bytes of protocol name | |
0f113f3e MC |
2542 | * (not including the leading length-prefix byte). If the server didn't |
2543 | * respond with a negotiated protocol then |*len| will be zero. | |
2544 | */ | |
6f017a8f | 2545 | void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, |
817cd0d5 | 2546 | unsigned int *len) |
0f113f3e MC |
2547 | { |
2548 | *data = NULL; | |
2549 | if (ssl->s3) | |
2550 | *data = ssl->s3->alpn_selected; | |
2551 | if (*data == NULL) | |
2552 | *len = 0; | |
2553 | else | |
348240c6 | 2554 | *len = (unsigned int)ssl->s3->alpn_selected_len; |
0f113f3e MC |
2555 | } |
2556 | ||
74b4b494 | 2557 | int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, |
0f113f3e MC |
2558 | const char *label, size_t llen, |
2559 | const unsigned char *p, size_t plen, | |
2560 | int use_context) | |
2561 | { | |
c8a18468 | 2562 | if (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER) |
0f113f3e | 2563 | return -1; |
e0af0405 | 2564 | |
0f113f3e MC |
2565 | return s->method->ssl3_enc->export_keying_material(s, out, olen, label, |
2566 | llen, p, plen, | |
2567 | use_context); | |
2568 | } | |
e0af0405 | 2569 | |
3c1d6bbc | 2570 | static unsigned long ssl_session_hash(const SSL_SESSION *a) |
0f113f3e | 2571 | { |
bd5d27c1 | 2572 | const unsigned char *session_id = a->session_id; |
0f113f3e | 2573 | unsigned long l; |
bd5d27c1 DB |
2574 | unsigned char tmp_storage[4]; |
2575 | ||
2576 | if (a->session_id_length < sizeof(tmp_storage)) { | |
2577 | memset(tmp_storage, 0, sizeof(tmp_storage)); | |
2578 | memcpy(tmp_storage, a->session_id, a->session_id_length); | |
2579 | session_id = tmp_storage; | |
2580 | } | |
0f113f3e MC |
2581 | |
2582 | l = (unsigned long) | |
bd5d27c1 DB |
2583 | ((unsigned long)session_id[0]) | |
2584 | ((unsigned long)session_id[1] << 8L) | | |
2585 | ((unsigned long)session_id[2] << 16L) | | |
2586 | ((unsigned long)session_id[3] << 24L); | |
0f113f3e MC |
2587 | return (l); |
2588 | } | |
2589 | ||
2590 | /* | |
2591 | * NB: If this function (or indeed the hash function which uses a sort of | |
dc644fe2 | 2592 | * coarser function than this one) is changed, ensure |
0f113f3e MC |
2593 | * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on |
2594 | * being able to construct an SSL_SESSION that will collide with any existing | |
2595 | * session with a matching session ID. | |
2596 | */ | |
2597 | static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) | |
2598 | { | |
2599 | if (a->ssl_version != b->ssl_version) | |
2600 | return (1); | |
2601 | if (a->session_id_length != b->session_id_length) | |
2602 | return (1); | |
2603 | return (memcmp(a->session_id, b->session_id, a->session_id_length)); | |
2604 | } | |
2605 | ||
2606 | /* | |
2607 | * These wrapper functions should remain rather than redeclaring | |
d0fa136c | 2608 | * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each |
0f113f3e MC |
2609 | * variable. The reason is that the functions aren't static, they're exposed |
2610 | * via ssl.h. | |
2611 | */ | |
97b17195 | 2612 | |
4ebb342f | 2613 | SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth) |
0f113f3e MC |
2614 | { |
2615 | SSL_CTX *ret = NULL; | |
2616 | ||
2617 | if (meth == NULL) { | |
2618 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED); | |
2619 | return (NULL); | |
2620 | } | |
2621 | ||
0fc32b07 MC |
2622 | if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL)) |
2623 | return NULL; | |
7fa792d1 | 2624 | |
0f113f3e MC |
2625 | if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { |
2626 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); | |
2627 | goto err; | |
2628 | } | |
b51bce94 | 2629 | ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e MC |
2630 | if (ret == NULL) |
2631 | goto err; | |
2632 | ||
0f113f3e | 2633 | ret->method = meth; |
7946ab33 KR |
2634 | ret->min_proto_version = 0; |
2635 | ret->max_proto_version = 0; | |
0f113f3e MC |
2636 | ret->session_cache_mode = SSL_SESS_CACHE_SERVER; |
2637 | ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; | |
64b25758 | 2638 | /* We take the system default. */ |
0f113f3e | 2639 | ret->session_timeout = meth->get_timeout(); |
0f113f3e | 2640 | ret->references = 1; |
16203f7b AG |
2641 | ret->lock = CRYPTO_THREAD_lock_new(); |
2642 | if (ret->lock == NULL) { | |
2643 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2644 | OPENSSL_free(ret); | |
2645 | return NULL; | |
2646 | } | |
0f113f3e | 2647 | ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; |
0f113f3e | 2648 | ret->verify_mode = SSL_VERIFY_NONE; |
0f113f3e MC |
2649 | if ((ret->cert = ssl_cert_new()) == NULL) |
2650 | goto err; | |
2651 | ||
62d0577e | 2652 | ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp); |
0f113f3e MC |
2653 | if (ret->sessions == NULL) |
2654 | goto err; | |
2655 | ret->cert_store = X509_STORE_new(); | |
2656 | if (ret->cert_store == NULL) | |
2657 | goto err; | |
ed29e82a RP |
2658 | #ifndef OPENSSL_NO_CT |
2659 | ret->ctlog_store = CTLOG_STORE_new(); | |
2660 | if (ret->ctlog_store == NULL) | |
2661 | goto err; | |
2662 | #endif | |
61986d32 | 2663 | if (!ssl_create_cipher_list(ret->method, |
a230b26e EK |
2664 | &ret->cipher_list, &ret->cipher_list_by_id, |
2665 | SSL_DEFAULT_CIPHER_LIST, ret->cert) | |
2666 | || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { | |
0f113f3e MC |
2667 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS); |
2668 | goto err2; | |
2669 | } | |
2670 | ||
2671 | ret->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 2672 | if (ret->param == NULL) |
0f113f3e MC |
2673 | goto err; |
2674 | ||
2675 | if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) { | |
2676 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); | |
2677 | goto err2; | |
2678 | } | |
2679 | if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) { | |
2680 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); | |
2681 | goto err2; | |
2682 | } | |
2683 | ||
fa7c2637 | 2684 | if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL) |
0f113f3e MC |
2685 | goto err; |
2686 | ||
25a807bc F |
2687 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) |
2688 | goto err; | |
0f113f3e | 2689 | |
0f113f3e MC |
2690 | /* No compression for DTLS */ |
2691 | if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)) | |
2692 | ret->comp_methods = SSL_COMP_get_compression_methods(); | |
2693 | ||
2694 | ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; | |
d102d9df | 2695 | ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; |
566dda07 | 2696 | |
4e2e1ec9 | 2697 | /* Setup RFC5077 ticket keys */ |
aff8c126 RS |
2698 | if ((RAND_bytes(ret->ext.tick_key_name, |
2699 | sizeof(ret->ext.tick_key_name)) <= 0) | |
2700 | || (RAND_bytes(ret->ext.tick_hmac_key, | |
2701 | sizeof(ret->ext.tick_hmac_key)) <= 0) | |
2702 | || (RAND_bytes(ret->ext.tick_aes_key, | |
2703 | sizeof(ret->ext.tick_aes_key)) <= 0)) | |
0f113f3e | 2704 | ret->options |= SSL_OP_NO_TICKET; |
6434abbf | 2705 | |
edc032b5 | 2706 | #ifndef OPENSSL_NO_SRP |
61986d32 | 2707 | if (!SSL_CTX_SRP_CTX_init(ret)) |
69f68237 | 2708 | goto err; |
edc032b5 | 2709 | #endif |
4db9677b | 2710 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e MC |
2711 | # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO |
2712 | # define eng_strx(x) #x | |
2713 | # define eng_str(x) eng_strx(x) | |
2714 | /* Use specific client engine automatically... ignore errors */ | |
2715 | { | |
2716 | ENGINE *eng; | |
2717 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2718 | if (!eng) { | |
2719 | ERR_clear_error(); | |
2720 | ENGINE_load_builtin_engines(); | |
2721 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2722 | } | |
2723 | if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) | |
2724 | ERR_clear_error(); | |
2725 | } | |
2726 | # endif | |
2727 | #endif | |
2728 | /* | |
2729 | * Default is to connect to non-RI servers. When RI is more widely | |
2730 | * deployed might change this. | |
2731 | */ | |
2732 | ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; | |
dc5744cb EK |
2733 | /* |
2734 | * Disable compression by default to prevent CRIME. Applications can | |
2735 | * re-enable compression by configuring | |
2736 | * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION); | |
2737 | * or by using the SSL_CONF library. | |
2738 | */ | |
2739 | ret->options |= SSL_OP_NO_COMPRESSION; | |
0f113f3e | 2740 | |
aff8c126 | 2741 | ret->ext.status_type = TLSEXT_STATUSTYPE_nothing; |
ba261f71 | 2742 | |
bfa9a9af MC |
2743 | /* |
2744 | * Default max early data is a fully loaded single record. Could be split | |
2745 | * across multiple records in practice | |
2746 | */ | |
2747 | ret->max_early_data = SSL3_RT_MAX_PLAIN_LENGTH; | |
2748 | ||
16203f7b | 2749 | return ret; |
0f113f3e MC |
2750 | err: |
2751 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2752 | err2: | |
e0e920b1 | 2753 | SSL_CTX_free(ret); |
16203f7b | 2754 | return NULL; |
0f113f3e | 2755 | } |
d02b48c6 | 2756 | |
c5ebfcab | 2757 | int SSL_CTX_up_ref(SSL_CTX *ctx) |
a18a31e4 | 2758 | { |
16203f7b | 2759 | int i; |
c5ebfcab | 2760 | |
2f545ae4 | 2761 | if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0) |
c5ebfcab F |
2762 | return 0; |
2763 | ||
2764 | REF_PRINT_COUNT("SSL_CTX", ctx); | |
2765 | REF_ASSERT_ISNT(i < 2); | |
2766 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
2767 | } |
2768 | ||
4f43d0e7 | 2769 | void SSL_CTX_free(SSL_CTX *a) |
0f113f3e MC |
2770 | { |
2771 | int i; | |
d02b48c6 | 2772 | |
0f113f3e MC |
2773 | if (a == NULL) |
2774 | return; | |
d02b48c6 | 2775 | |
2f545ae4 | 2776 | CRYPTO_DOWN_REF(&a->references, &i, a->lock); |
f3f1cf84 | 2777 | REF_PRINT_COUNT("SSL_CTX", a); |
0f113f3e MC |
2778 | if (i > 0) |
2779 | return; | |
f3f1cf84 | 2780 | REF_ASSERT_ISNT(i < 0); |
0f113f3e | 2781 | |
222561fe | 2782 | X509_VERIFY_PARAM_free(a->param); |
919ba009 | 2783 | dane_ctx_final(&a->dane); |
0f113f3e MC |
2784 | |
2785 | /* | |
2786 | * Free internal session cache. However: the remove_cb() may reference | |
2787 | * the ex_data of SSL_CTX, thus the ex_data store can only be removed | |
2788 | * after the sessions were flushed. | |
2789 | * As the ex_data handling routines might also touch the session cache, | |
2790 | * the most secure solution seems to be: empty (flush) the cache, then | |
2791 | * free ex_data, then finally free the cache. | |
2792 | * (See ticket [openssl.org #212].) | |
2793 | */ | |
2794 | if (a->sessions != NULL) | |
2795 | SSL_CTX_flush_sessions(a, 0); | |
2796 | ||
2797 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); | |
25aaa98a | 2798 | lh_SSL_SESSION_free(a->sessions); |
222561fe | 2799 | X509_STORE_free(a->cert_store); |
ed29e82a RP |
2800 | #ifndef OPENSSL_NO_CT |
2801 | CTLOG_STORE_free(a->ctlog_store); | |
2802 | #endif | |
25aaa98a RS |
2803 | sk_SSL_CIPHER_free(a->cipher_list); |
2804 | sk_SSL_CIPHER_free(a->cipher_list_by_id); | |
e0e920b1 | 2805 | ssl_cert_free(a->cert); |
fa7c2637 | 2806 | sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free); |
222561fe | 2807 | sk_X509_pop_free(a->extra_certs, X509_free); |
0f113f3e | 2808 | a->comp_methods = NULL; |
e783bae2 | 2809 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 2810 | sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); |
e783bae2 | 2811 | #endif |
edc032b5 | 2812 | #ifndef OPENSSL_NO_SRP |
0f113f3e | 2813 | SSL_CTX_SRP_CTX_free(a); |
edc032b5 | 2814 | #endif |
bdfe932d | 2815 | #ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 2816 | ENGINE_finish(a->client_cert_engine); |
ddac1974 | 2817 | #endif |
8671b898 | 2818 | |
e481f9b9 | 2819 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
2820 | OPENSSL_free(a->ext.ecpointformats); |
2821 | OPENSSL_free(a->ext.supportedgroups); | |
8671b898 | 2822 | #endif |
aff8c126 | 2823 | OPENSSL_free(a->ext.alpn); |
8671b898 | 2824 | |
16203f7b AG |
2825 | CRYPTO_THREAD_lock_free(a->lock); |
2826 | ||
0f113f3e MC |
2827 | OPENSSL_free(a); |
2828 | } | |
d02b48c6 | 2829 | |
3ae76679 | 2830 | void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) |
0f113f3e MC |
2831 | { |
2832 | ctx->default_passwd_callback = cb; | |
2833 | } | |
2834 | ||
2835 | void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) | |
2836 | { | |
2837 | ctx->default_passwd_callback_userdata = u; | |
2838 | } | |
2839 | ||
0c452abc CH |
2840 | pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) |
2841 | { | |
2842 | return ctx->default_passwd_callback; | |
2843 | } | |
2844 | ||
2845 | void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) | |
2846 | { | |
2847 | return ctx->default_passwd_callback_userdata; | |
2848 | } | |
2849 | ||
a974e64a MC |
2850 | void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb) |
2851 | { | |
2852 | s->default_passwd_callback = cb; | |
2853 | } | |
2854 | ||
2855 | void SSL_set_default_passwd_cb_userdata(SSL *s, void *u) | |
2856 | { | |
2857 | s->default_passwd_callback_userdata = u; | |
2858 | } | |
2859 | ||
0c452abc CH |
2860 | pem_password_cb *SSL_get_default_passwd_cb(SSL *s) |
2861 | { | |
2862 | return s->default_passwd_callback; | |
2863 | } | |
2864 | ||
2865 | void *SSL_get_default_passwd_cb_userdata(SSL *s) | |
2866 | { | |
2867 | return s->default_passwd_callback_userdata; | |
2868 | } | |
2869 | ||
0f113f3e MC |
2870 | void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, |
2871 | int (*cb) (X509_STORE_CTX *, void *), | |
2872 | void *arg) | |
2873 | { | |
2874 | ctx->app_verify_callback = cb; | |
2875 | ctx->app_verify_arg = arg; | |
2876 | } | |
2877 | ||
2878 | void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, | |
2879 | int (*cb) (int, X509_STORE_CTX *)) | |
2880 | { | |
2881 | ctx->verify_mode = mode; | |
2882 | ctx->default_verify_callback = cb; | |
2883 | } | |
2884 | ||
2885 | void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) | |
2886 | { | |
2887 | X509_VERIFY_PARAM_set_depth(ctx->param, depth); | |
2888 | } | |
2889 | ||
a230b26e | 2890 | void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg) |
0f113f3e MC |
2891 | { |
2892 | ssl_cert_set_cert_cb(c->cert, cb, arg); | |
2893 | } | |
2894 | ||
2895 | void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg) | |
2896 | { | |
2897 | ssl_cert_set_cert_cb(s->cert, cb, arg); | |
2898 | } | |
18d71588 | 2899 | |
2cf28d61 | 2900 | void ssl_set_masks(SSL *s) |
0f113f3e | 2901 | { |
6383d316 | 2902 | CERT *c = s->cert; |
f7d53487 | 2903 | uint32_t *pvalid = s->s3->tmp.valid_flags; |
bc71f910 | 2904 | int rsa_enc, rsa_sign, dh_tmp, dsa_sign; |
361a1191 | 2905 | unsigned long mask_k, mask_a; |
10bf4fc2 | 2906 | #ifndef OPENSSL_NO_EC |
361a1191 | 2907 | int have_ecc_cert, ecdsa_ok; |
14536c8c | 2908 | #endif |
0f113f3e MC |
2909 | if (c == NULL) |
2910 | return; | |
d02b48c6 | 2911 | |
bc36ee62 | 2912 | #ifndef OPENSSL_NO_DH |
0f113f3e | 2913 | dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto); |
d02b48c6 | 2914 | #else |
361a1191 | 2915 | dh_tmp = 0; |
d02b48c6 RE |
2916 | #endif |
2917 | ||
d0ff28f8 | 2918 | rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID; |
38e8f3cd DSH |
2919 | rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID; |
2920 | dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID; | |
14536c8c | 2921 | #ifndef OPENSSL_NO_EC |
6383d316 | 2922 | have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID; |
14536c8c | 2923 | #endif |
0f113f3e MC |
2924 | mask_k = 0; |
2925 | mask_a = 0; | |
0e1dba93 | 2926 | |
d02b48c6 | 2927 | #ifdef CIPHER_DEBUG |
b7557ccf AG |
2928 | fprintf(stderr, "dht=%d re=%d rs=%d ds=%d\n", |
2929 | dh_tmp, rsa_enc, rsa_sign, dsa_sign); | |
0f113f3e MC |
2930 | #endif |
2931 | ||
2a9b9654 | 2932 | #ifndef OPENSSL_NO_GOST |
4020c0b3 | 2933 | if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) { |
e44380a9 DB |
2934 | mask_k |= SSL_kGOST; |
2935 | mask_a |= SSL_aGOST12; | |
2936 | } | |
4020c0b3 | 2937 | if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) { |
e44380a9 DB |
2938 | mask_k |= SSL_kGOST; |
2939 | mask_a |= SSL_aGOST12; | |
2940 | } | |
4020c0b3 | 2941 | if (ssl_has_cert(s, SSL_PKEY_GOST01)) { |
0f113f3e MC |
2942 | mask_k |= SSL_kGOST; |
2943 | mask_a |= SSL_aGOST01; | |
2944 | } | |
2a9b9654 | 2945 | #endif |
0f113f3e | 2946 | |
361a1191 | 2947 | if (rsa_enc) |
0f113f3e | 2948 | mask_k |= SSL_kRSA; |
d02b48c6 | 2949 | |
0f113f3e MC |
2950 | if (dh_tmp) |
2951 | mask_k |= SSL_kDHE; | |
d02b48c6 | 2952 | |
0f113f3e MC |
2953 | if (rsa_enc || rsa_sign) { |
2954 | mask_a |= SSL_aRSA; | |
0f113f3e | 2955 | } |
d02b48c6 | 2956 | |
0f113f3e MC |
2957 | if (dsa_sign) { |
2958 | mask_a |= SSL_aDSS; | |
0f113f3e | 2959 | } |
d02b48c6 | 2960 | |
0f113f3e | 2961 | mask_a |= SSL_aNULL; |
d02b48c6 | 2962 | |
0f113f3e MC |
2963 | /* |
2964 | * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites | |
2965 | * depending on the key usage extension. | |
2966 | */ | |
14536c8c | 2967 | #ifndef OPENSSL_NO_EC |
0f113f3e | 2968 | if (have_ecc_cert) { |
a8d8e06b | 2969 | uint32_t ex_kusage; |
4020c0b3 | 2970 | ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509); |
a8d8e06b | 2971 | ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE; |
6383d316 | 2972 | if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN)) |
0f113f3e | 2973 | ecdsa_ok = 0; |
c7c46256 | 2974 | if (ecdsa_ok) |
0f113f3e | 2975 | mask_a |= SSL_aECDSA; |
0f113f3e | 2976 | } |
b2021556 DSH |
2977 | /* Allow Ed25519 for TLS 1.2 if peer supports it */ |
2978 | if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519) | |
2979 | && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN | |
2980 | && TLS1_get_version(s) == TLS1_2_VERSION) | |
2981 | mask_a |= SSL_aECDSA; | |
14536c8c | 2982 | #endif |
ea262260 | 2983 | |
10bf4fc2 | 2984 | #ifndef OPENSSL_NO_EC |
fe6ef247 | 2985 | mask_k |= SSL_kECDHE; |
ea262260 | 2986 | #endif |
ddac1974 NL |
2987 | |
2988 | #ifndef OPENSSL_NO_PSK | |
0f113f3e MC |
2989 | mask_k |= SSL_kPSK; |
2990 | mask_a |= SSL_aPSK; | |
526f94ad DSH |
2991 | if (mask_k & SSL_kRSA) |
2992 | mask_k |= SSL_kRSAPSK; | |
2993 | if (mask_k & SSL_kDHE) | |
2994 | mask_k |= SSL_kDHEPSK; | |
2995 | if (mask_k & SSL_kECDHE) | |
2996 | mask_k |= SSL_kECDHEPSK; | |
ddac1974 NL |
2997 | #endif |
2998 | ||
4d69f9e6 DSH |
2999 | s->s3->tmp.mask_k = mask_k; |
3000 | s->s3->tmp.mask_a = mask_a; | |
0f113f3e | 3001 | } |
d02b48c6 | 3002 | |
ef236ec3 DSH |
3003 | #ifndef OPENSSL_NO_EC |
3004 | ||
a2f9200f | 3005 | int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) |
0f113f3e | 3006 | { |
ce0c1f2b | 3007 | if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aECDSA) { |
0f113f3e | 3008 | /* key usage, if present, must allow signing */ |
ce0c1f2b | 3009 | if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) { |
0f113f3e MC |
3010 | SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, |
3011 | SSL_R_ECC_CERT_NOT_FOR_SIGNING); | |
3012 | return 0; | |
3013 | } | |
3014 | } | |
0f113f3e MC |
3015 | return 1; /* all checks are ok */ |
3016 | } | |
ea262260 | 3017 | |
ef236ec3 DSH |
3018 | #endif |
3019 | ||
a398f821 | 3020 | int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, |
0f113f3e MC |
3021 | size_t *serverinfo_length) |
3022 | { | |
a497cf25 | 3023 | CERT_PKEY *cpk = s->s3->tmp.cert; |
0f113f3e MC |
3024 | *serverinfo_length = 0; |
3025 | ||
a497cf25 | 3026 | if (cpk == NULL || cpk->serverinfo == NULL) |
0f113f3e MC |
3027 | return 0; |
3028 | ||
a497cf25 DSH |
3029 | *serverinfo = cpk->serverinfo; |
3030 | *serverinfo_length = cpk->serverinfo_length; | |
0f113f3e MC |
3031 | return 1; |
3032 | } | |
0f113f3e MC |
3033 | |
3034 | void ssl_update_cache(SSL *s, int mode) | |
3035 | { | |
3036 | int i; | |
3037 | ||
3038 | /* | |
3039 | * If the session_id_length is 0, we are not supposed to cache it, and it | |
3040 | * would be rather hard to do anyway :-) | |
3041 | */ | |
3042 | if (s->session->session_id_length == 0) | |
3043 | return; | |
3044 | ||
3045 | i = s->session_ctx->session_cache_mode; | |
3046 | if ((i & mode) && (!s->hit) | |
3047 | && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) | |
3048 | || SSL_CTX_add_session(s->session_ctx, s->session)) | |
3049 | && (s->session_ctx->new_session_cb != NULL)) { | |
16203f7b | 3050 | SSL_SESSION_up_ref(s->session); |
0f113f3e MC |
3051 | if (!s->session_ctx->new_session_cb(s, s->session)) |
3052 | SSL_SESSION_free(s->session); | |
3053 | } | |
3054 | ||
3055 | /* auto flush every 255 connections */ | |
3056 | if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) { | |
3057 | if ((((mode & SSL_SESS_CACHE_CLIENT) | |
3058 | ? s->session_ctx->stats.sess_connect_good | |
3059 | : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) { | |
3060 | SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL)); | |
3061 | } | |
3062 | } | |
3063 | } | |
d02b48c6 | 3064 | |
ba168244 | 3065 | const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx) |
0f113f3e MC |
3066 | { |
3067 | return ctx->method; | |
3068 | } | |
ba168244 | 3069 | |
4ebb342f | 3070 | const SSL_METHOD *SSL_get_ssl_method(SSL *s) |
0f113f3e MC |
3071 | { |
3072 | return (s->method); | |
3073 | } | |
d02b48c6 | 3074 | |
4ebb342f | 3075 | int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) |
0f113f3e | 3076 | { |
0f113f3e MC |
3077 | int ret = 1; |
3078 | ||
3079 | if (s->method != meth) { | |
919ba009 | 3080 | const SSL_METHOD *sm = s->method; |
a230b26e | 3081 | int (*hf) (SSL *) = s->handshake_func; |
0f113f3e | 3082 | |
919ba009 | 3083 | if (sm->version == meth->version) |
0f113f3e MC |
3084 | s->method = meth; |
3085 | else { | |
919ba009 | 3086 | sm->ssl_free(s); |
0f113f3e MC |
3087 | s->method = meth; |
3088 | ret = s->method->ssl_new(s); | |
3089 | } | |
3090 | ||
919ba009 | 3091 | if (hf == sm->ssl_connect) |
0f113f3e | 3092 | s->handshake_func = meth->ssl_connect; |
919ba009 | 3093 | else if (hf == sm->ssl_accept) |
0f113f3e MC |
3094 | s->handshake_func = meth->ssl_accept; |
3095 | } | |
3096 | return (ret); | |
3097 | } | |
3098 | ||
3099 | int SSL_get_error(const SSL *s, int i) | |
3100 | { | |
3101 | int reason; | |
3102 | unsigned long l; | |
3103 | BIO *bio; | |
3104 | ||
3105 | if (i > 0) | |
3106 | return (SSL_ERROR_NONE); | |
3107 | ||
3108 | /* | |
3109 | * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc, | |
3110 | * where we do encode the error | |
3111 | */ | |
3112 | if ((l = ERR_peek_error()) != 0) { | |
3113 | if (ERR_GET_LIB(l) == ERR_LIB_SYS) | |
3114 | return (SSL_ERROR_SYSCALL); | |
3115 | else | |
3116 | return (SSL_ERROR_SSL); | |
3117 | } | |
3118 | ||
8051ab2b MC |
3119 | if (SSL_want_read(s)) { |
3120 | bio = SSL_get_rbio(s); | |
3121 | if (BIO_should_read(bio)) | |
3122 | return (SSL_ERROR_WANT_READ); | |
3123 | else if (BIO_should_write(bio)) | |
3124 | /* | |
3125 | * This one doesn't make too much sense ... We never try to write | |
3126 | * to the rbio, and an application program where rbio and wbio | |
3127 | * are separate couldn't even know what it should wait for. | |
3128 | * However if we ever set s->rwstate incorrectly (so that we have | |
3129 | * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and | |
3130 | * wbio *are* the same, this test works around that bug; so it | |
3131 | * might be safer to keep it. | |
3132 | */ | |
3133 | return (SSL_ERROR_WANT_WRITE); | |
3134 | else if (BIO_should_io_special(bio)) { | |
3135 | reason = BIO_get_retry_reason(bio); | |
3136 | if (reason == BIO_RR_CONNECT) | |
3137 | return (SSL_ERROR_WANT_CONNECT); | |
3138 | else if (reason == BIO_RR_ACCEPT) | |
3139 | return (SSL_ERROR_WANT_ACCEPT); | |
3140 | else | |
3141 | return (SSL_ERROR_SYSCALL); /* unknown */ | |
0f113f3e | 3142 | } |
8051ab2b | 3143 | } |
0f113f3e | 3144 | |
8051ab2b | 3145 | if (SSL_want_write(s)) { |
69687aa8 | 3146 | /* Access wbio directly - in order to use the buffered bio if present */ |
8051ab2b MC |
3147 | bio = s->wbio; |
3148 | if (BIO_should_write(bio)) | |
3149 | return (SSL_ERROR_WANT_WRITE); | |
3150 | else if (BIO_should_read(bio)) | |
2e7dc7cd | 3151 | /* |
8051ab2b | 3152 | * See above (SSL_want_read(s) with BIO_should_write(bio)) |
2e7dc7cd | 3153 | */ |
8051ab2b MC |
3154 | return (SSL_ERROR_WANT_READ); |
3155 | else if (BIO_should_io_special(bio)) { | |
3156 | reason = BIO_get_retry_reason(bio); | |
3157 | if (reason == BIO_RR_CONNECT) | |
3158 | return (SSL_ERROR_WANT_CONNECT); | |
3159 | else if (reason == BIO_RR_ACCEPT) | |
3160 | return (SSL_ERROR_WANT_ACCEPT); | |
3161 | else | |
3162 | return (SSL_ERROR_SYSCALL); | |
0f113f3e | 3163 | } |
07bbc92c | 3164 | } |
6b1bb98f | 3165 | if (SSL_want_x509_lookup(s)) |
8051ab2b | 3166 | return (SSL_ERROR_WANT_X509_LOOKUP); |
6b1bb98f | 3167 | if (SSL_want_async(s)) |
8051ab2b | 3168 | return SSL_ERROR_WANT_ASYNC; |
6b1bb98f | 3169 | if (SSL_want_async_job(s)) |
8051ab2b | 3170 | return SSL_ERROR_WANT_ASYNC_JOB; |
6b1bb98f BK |
3171 | if (SSL_want_early(s)) |
3172 | return SSL_ERROR_WANT_EARLY; | |
8051ab2b MC |
3173 | |
3174 | if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && | |
3175 | (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) | |
3176 | return (SSL_ERROR_ZERO_RETURN); | |
3177 | ||
0f113f3e MC |
3178 | return (SSL_ERROR_SYSCALL); |
3179 | } | |
d02b48c6 | 3180 | |
add2f5ca MC |
3181 | static int ssl_do_handshake_intern(void *vargs) |
3182 | { | |
3183 | struct ssl_async_args *args; | |
3184 | SSL *s; | |
3185 | ||
3186 | args = (struct ssl_async_args *)vargs; | |
3187 | s = args->s; | |
3188 | ||
3189 | return s->handshake_func(s); | |
3190 | } | |
3191 | ||
4f43d0e7 | 3192 | int SSL_do_handshake(SSL *s) |
0f113f3e MC |
3193 | { |
3194 | int ret = 1; | |
3195 | ||
3196 | if (s->handshake_func == NULL) { | |
3197 | SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET); | |
add2f5ca | 3198 | return -1; |
0f113f3e MC |
3199 | } |
3200 | ||
3eaa4170 | 3201 | ossl_statem_check_finish_init(s, -1); |
49e7fe12 | 3202 | |
c7f47786 | 3203 | s->method->ssl_renegotiate_check(s, 0); |
0f113f3e MC |
3204 | |
3205 | if (SSL_in_init(s) || SSL_in_before(s)) { | |
e8aa8b6c | 3206 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca MC |
3207 | struct ssl_async_args args; |
3208 | ||
3209 | args.s = s; | |
3210 | ||
7fecbf6f | 3211 | ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern); |
add2f5ca MC |
3212 | } else { |
3213 | ret = s->handshake_func(s); | |
3214 | } | |
0f113f3e | 3215 | } |
add2f5ca | 3216 | return ret; |
0f113f3e MC |
3217 | } |
3218 | ||
4f43d0e7 | 3219 | void SSL_set_accept_state(SSL *s) |
0f113f3e MC |
3220 | { |
3221 | s->server = 1; | |
3222 | s->shutdown = 0; | |
fe3a3291 | 3223 | ossl_statem_clear(s); |
0f113f3e | 3224 | s->handshake_func = s->method->ssl_accept; |
d31fb0b5 | 3225 | clear_ciphers(s); |
0f113f3e | 3226 | } |
d02b48c6 | 3227 | |
4f43d0e7 | 3228 | void SSL_set_connect_state(SSL *s) |
0f113f3e MC |
3229 | { |
3230 | s->server = 0; | |
3231 | s->shutdown = 0; | |
fe3a3291 | 3232 | ossl_statem_clear(s); |
0f113f3e | 3233 | s->handshake_func = s->method->ssl_connect; |
d31fb0b5 | 3234 | clear_ciphers(s); |
0f113f3e | 3235 | } |
d02b48c6 | 3236 | |
4f43d0e7 | 3237 | int ssl_undefined_function(SSL *s) |
0f113f3e MC |
3238 | { |
3239 | SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3240 | return (0); | |
3241 | } | |
d02b48c6 | 3242 | |
41a15c4f | 3243 | int ssl_undefined_void_function(void) |
0f113f3e MC |
3244 | { |
3245 | SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION, | |
3246 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3247 | return (0); | |
3248 | } | |
41a15c4f | 3249 | |
0821bcd4 | 3250 | int ssl_undefined_const_function(const SSL *s) |
0f113f3e | 3251 | { |
0f113f3e MC |
3252 | return (0); |
3253 | } | |
0821bcd4 | 3254 | |
2b8fa1d5 | 3255 | const SSL_METHOD *ssl_bad_method(int ver) |
0f113f3e MC |
3256 | { |
3257 | SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
3258 | return (NULL); | |
3259 | } | |
d02b48c6 | 3260 | |
3eb2aff4 | 3261 | const char *ssl_protocol_to_string(int version) |
7d650072 | 3262 | { |
2abacef1 MC |
3263 | switch(version) |
3264 | { | |
3265 | case TLS1_3_VERSION: | |
582a17d6 | 3266 | return "TLSv1.3"; |
2abacef1 MC |
3267 | |
3268 | case TLS1_2_VERSION: | |
7d650072 | 3269 | return "TLSv1.2"; |
2abacef1 MC |
3270 | |
3271 | case TLS1_1_VERSION: | |
7d650072 | 3272 | return "TLSv1.1"; |
2abacef1 MC |
3273 | |
3274 | case TLS1_VERSION: | |
ee3a6c64 | 3275 | return "TLSv1"; |
2abacef1 MC |
3276 | |
3277 | case SSL3_VERSION: | |
7d650072 | 3278 | return "SSLv3"; |
2abacef1 MC |
3279 | |
3280 | case DTLS1_BAD_VER: | |
7d650072 | 3281 | return "DTLSv0.9"; |
2abacef1 MC |
3282 | |
3283 | case DTLS1_VERSION: | |
7d650072 | 3284 | return "DTLSv1"; |
2abacef1 MC |
3285 | |
3286 | case DTLS1_2_VERSION: | |
7d650072 | 3287 | return "DTLSv1.2"; |
2abacef1 MC |
3288 | |
3289 | default: | |
3290 | return "unknown"; | |
3291 | } | |
0f113f3e | 3292 | } |
d02b48c6 | 3293 | |
7d650072 KR |
3294 | const char *SSL_get_version(const SSL *s) |
3295 | { | |
3eb2aff4 | 3296 | return ssl_protocol_to_string(s->version); |
7d650072 KR |
3297 | } |
3298 | ||
4f43d0e7 | 3299 | SSL *SSL_dup(SSL *s) |
0f113f3e MC |
3300 | { |
3301 | STACK_OF(X509_NAME) *sk; | |
3302 | X509_NAME *xn; | |
3303 | SSL *ret; | |
3304 | int i; | |
3305 | ||
919ba009 VD |
3306 | /* If we're not quiescent, just up_ref! */ |
3307 | if (!SSL_in_init(s) || !SSL_in_before(s)) { | |
2f545ae4 | 3308 | CRYPTO_UP_REF(&s->references, &i, s->lock); |
919ba009 VD |
3309 | return s; |
3310 | } | |
3311 | ||
3312 | /* | |
3313 | * Otherwise, copy configuration state, and session if set. | |
3314 | */ | |
0f113f3e MC |
3315 | if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) |
3316 | return (NULL); | |
3317 | ||
0f113f3e | 3318 | if (s->session != NULL) { |
919ba009 VD |
3319 | /* |
3320 | * Arranges to share the same session via up_ref. This "copies" | |
3321 | * session-id, SSL_METHOD, sid_ctx, and 'cert' | |
3322 | */ | |
61986d32 | 3323 | if (!SSL_copy_session_id(ret, s)) |
17dd65e6 | 3324 | goto err; |
0f113f3e MC |
3325 | } else { |
3326 | /* | |
3327 | * No session has been established yet, so we have to expect that | |
3328 | * s->cert or ret->cert will be changed later -- they should not both | |
3329 | * point to the same object, and thus we can't use | |
3330 | * SSL_copy_session_id. | |
3331 | */ | |
919ba009 VD |
3332 | if (!SSL_set_ssl_method(ret, s->method)) |
3333 | goto err; | |
0f113f3e MC |
3334 | |
3335 | if (s->cert != NULL) { | |
e0e920b1 | 3336 | ssl_cert_free(ret->cert); |
0f113f3e MC |
3337 | ret->cert = ssl_cert_dup(s->cert); |
3338 | if (ret->cert == NULL) | |
3339 | goto err; | |
3340 | } | |
3341 | ||
348240c6 MC |
3342 | if (!SSL_set_session_id_context(ret, s->sid_ctx, |
3343 | (int)s->sid_ctx_length)) | |
69f68237 | 3344 | goto err; |
0f113f3e MC |
3345 | } |
3346 | ||
9f6b22b8 VD |
3347 | if (!ssl_dane_dup(ret, s)) |
3348 | goto err; | |
919ba009 | 3349 | ret->version = s->version; |
0f113f3e MC |
3350 | ret->options = s->options; |
3351 | ret->mode = s->mode; | |
3352 | SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); | |
3353 | SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); | |
3354 | ret->msg_callback = s->msg_callback; | |
3355 | ret->msg_callback_arg = s->msg_callback_arg; | |
3356 | SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s)); | |
3357 | SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); | |
3358 | ret->generate_session_id = s->generate_session_id; | |
3359 | ||
3360 | SSL_set_info_callback(ret, SSL_get_info_callback(s)); | |
3361 | ||
0f113f3e MC |
3362 | /* copy app data, a little dangerous perhaps */ |
3363 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) | |
3364 | goto err; | |
3365 | ||
3366 | /* setup rbio, and wbio */ | |
3367 | if (s->rbio != NULL) { | |
3368 | if (!BIO_dup_state(s->rbio, (char *)&ret->rbio)) | |
3369 | goto err; | |
3370 | } | |
3371 | if (s->wbio != NULL) { | |
3372 | if (s->wbio != s->rbio) { | |
3373 | if (!BIO_dup_state(s->wbio, (char *)&ret->wbio)) | |
3374 | goto err; | |
65e2d672 MC |
3375 | } else { |
3376 | BIO_up_ref(ret->rbio); | |
0f113f3e | 3377 | ret->wbio = ret->rbio; |
65e2d672 | 3378 | } |
0f113f3e | 3379 | } |
919ba009 | 3380 | |
0f113f3e | 3381 | ret->server = s->server; |
919ba009 VD |
3382 | if (s->handshake_func) { |
3383 | if (s->server) | |
3384 | SSL_set_accept_state(ret); | |
3385 | else | |
3386 | SSL_set_connect_state(ret); | |
3387 | } | |
0f113f3e | 3388 | ret->shutdown = s->shutdown; |
0f113f3e MC |
3389 | ret->hit = s->hit; |
3390 | ||
a974e64a MC |
3391 | ret->default_passwd_callback = s->default_passwd_callback; |
3392 | ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata; | |
3393 | ||
0f113f3e MC |
3394 | X509_VERIFY_PARAM_inherit(ret->param, s->param); |
3395 | ||
3396 | /* dup the cipher_list and cipher_list_by_id stacks */ | |
3397 | if (s->cipher_list != NULL) { | |
3398 | if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) | |
3399 | goto err; | |
3400 | } | |
3401 | if (s->cipher_list_by_id != NULL) | |
3402 | if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id)) | |
3403 | == NULL) | |
3404 | goto err; | |
3405 | ||
3406 | /* Dup the client_CA list */ | |
fa7c2637 DSH |
3407 | if (s->ca_names != NULL) { |
3408 | if ((sk = sk_X509_NAME_dup(s->ca_names)) == NULL) | |
0f113f3e | 3409 | goto err; |
fa7c2637 | 3410 | ret->ca_names = sk; |
0f113f3e MC |
3411 | for (i = 0; i < sk_X509_NAME_num(sk); i++) { |
3412 | xn = sk_X509_NAME_value(sk, i); | |
3413 | if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) { | |
3414 | X509_NAME_free(xn); | |
3415 | goto err; | |
3416 | } | |
3417 | } | |
3418 | } | |
66696478 | 3419 | return ret; |
0f113f3e | 3420 | |
0f113f3e | 3421 | err: |
66696478 RS |
3422 | SSL_free(ret); |
3423 | return NULL; | |
0f113f3e | 3424 | } |
d02b48c6 | 3425 | |
4f43d0e7 | 3426 | void ssl_clear_cipher_ctx(SSL *s) |
0f113f3e MC |
3427 | { |
3428 | if (s->enc_read_ctx != NULL) { | |
846ec07d | 3429 | EVP_CIPHER_CTX_free(s->enc_read_ctx); |
0f113f3e MC |
3430 | s->enc_read_ctx = NULL; |
3431 | } | |
3432 | if (s->enc_write_ctx != NULL) { | |
846ec07d | 3433 | EVP_CIPHER_CTX_free(s->enc_write_ctx); |
0f113f3e MC |
3434 | s->enc_write_ctx = NULL; |
3435 | } | |
09b6c2ef | 3436 | #ifndef OPENSSL_NO_COMP |
efa7dd64 RS |
3437 | COMP_CTX_free(s->expand); |
3438 | s->expand = NULL; | |
3439 | COMP_CTX_free(s->compress); | |
3440 | s->compress = NULL; | |
0f113f3e MC |
3441 | #endif |
3442 | } | |
d02b48c6 | 3443 | |
0821bcd4 | 3444 | X509 *SSL_get_certificate(const SSL *s) |
0f113f3e MC |
3445 | { |
3446 | if (s->cert != NULL) | |
3447 | return (s->cert->key->x509); | |
3448 | else | |
3449 | return (NULL); | |
3450 | } | |
d02b48c6 | 3451 | |
a25f9adc | 3452 | EVP_PKEY *SSL_get_privatekey(const SSL *s) |
0f113f3e MC |
3453 | { |
3454 | if (s->cert != NULL) | |
3455 | return (s->cert->key->privatekey); | |
3456 | else | |
3457 | return (NULL); | |
3458 | } | |
d02b48c6 | 3459 | |
a25f9adc | 3460 | X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx) |
0f113f3e MC |
3461 | { |
3462 | if (ctx->cert != NULL) | |
3463 | return ctx->cert->key->x509; | |
3464 | else | |
3465 | return NULL; | |
3466 | } | |
a25f9adc DSH |
3467 | |
3468 | EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx) | |
0f113f3e MC |
3469 | { |
3470 | if (ctx->cert != NULL) | |
3471 | return ctx->cert->key->privatekey; | |
3472 | else | |
3473 | return NULL; | |
3474 | } | |
a25f9adc | 3475 | |
babb3798 | 3476 | const SSL_CIPHER *SSL_get_current_cipher(const SSL *s) |
0f113f3e MC |
3477 | { |
3478 | if ((s->session != NULL) && (s->session->cipher != NULL)) | |
3479 | return (s->session->cipher); | |
3480 | return (NULL); | |
3481 | } | |
3482 | ||
377dcdba | 3483 | const COMP_METHOD *SSL_get_current_compression(SSL *s) |
0f113f3e | 3484 | { |
9a555706 RS |
3485 | #ifndef OPENSSL_NO_COMP |
3486 | return s->compress ? COMP_CTX_get_method(s->compress) : NULL; | |
3487 | #else | |
3488 | return NULL; | |
3489 | #endif | |
0f113f3e | 3490 | } |
377dcdba RL |
3491 | |
3492 | const COMP_METHOD *SSL_get_current_expansion(SSL *s) | |
0f113f3e | 3493 | { |
9a555706 RS |
3494 | #ifndef OPENSSL_NO_COMP |
3495 | return s->expand ? COMP_CTX_get_method(s->expand) : NULL; | |
3496 | #else | |
3497 | return NULL; | |
0f113f3e | 3498 | #endif |
9a555706 | 3499 | } |
0f113f3e | 3500 | |
46417569 | 3501 | int ssl_init_wbio_buffer(SSL *s) |
0f113f3e MC |
3502 | { |
3503 | BIO *bbio; | |
3504 | ||
2e7dc7cd MC |
3505 | if (s->bbio != NULL) { |
3506 | /* Already buffered. */ | |
3507 | return 1; | |
0f113f3e | 3508 | } |
46417569 | 3509 | |
2e7dc7cd MC |
3510 | bbio = BIO_new(BIO_f_buffer()); |
3511 | if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) { | |
3512 | BIO_free(bbio); | |
0f113f3e | 3513 | SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB); |
46417569 | 3514 | return 0; |
0f113f3e | 3515 | } |
2e7dc7cd MC |
3516 | s->bbio = bbio; |
3517 | s->wbio = BIO_push(bbio, s->wbio); | |
46417569 MC |
3518 | |
3519 | return 1; | |
0f113f3e | 3520 | } |
413c4f45 | 3521 | |
b77f3ed1 | 3522 | int ssl_free_wbio_buffer(SSL *s) |
0f113f3e | 3523 | { |
62adbcee | 3524 | /* callers ensure s is never null */ |
0f113f3e | 3525 | if (s->bbio == NULL) |
b77f3ed1 | 3526 | return 1; |
0f113f3e | 3527 | |
2e7dc7cd | 3528 | s->wbio = BIO_pop(s->wbio); |
b77f3ed1 MC |
3529 | if (!ossl_assert(s->wbio != NULL)) |
3530 | return 0; | |
0f113f3e MC |
3531 | BIO_free(s->bbio); |
3532 | s->bbio = NULL; | |
b77f3ed1 MC |
3533 | |
3534 | return 1; | |
0f113f3e MC |
3535 | } |
3536 | ||
3537 | void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) | |
3538 | { | |
3539 | ctx->quiet_shutdown = mode; | |
3540 | } | |
58964a49 | 3541 | |
0821bcd4 | 3542 | int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) |
0f113f3e MC |
3543 | { |
3544 | return (ctx->quiet_shutdown); | |
3545 | } | |
58964a49 | 3546 | |
0f113f3e MC |
3547 | void SSL_set_quiet_shutdown(SSL *s, int mode) |
3548 | { | |
3549 | s->quiet_shutdown = mode; | |
3550 | } | |
58964a49 | 3551 | |
0821bcd4 | 3552 | int SSL_get_quiet_shutdown(const SSL *s) |
0f113f3e MC |
3553 | { |
3554 | return (s->quiet_shutdown); | |
3555 | } | |
58964a49 | 3556 | |
0f113f3e MC |
3557 | void SSL_set_shutdown(SSL *s, int mode) |
3558 | { | |
3559 | s->shutdown = mode; | |
3560 | } | |
58964a49 | 3561 | |
0821bcd4 | 3562 | int SSL_get_shutdown(const SSL *s) |
0f113f3e | 3563 | { |
6546e9b2 | 3564 | return s->shutdown; |
0f113f3e | 3565 | } |
58964a49 | 3566 | |
0821bcd4 | 3567 | int SSL_version(const SSL *s) |
0f113f3e | 3568 | { |
6546e9b2 AG |
3569 | return s->version; |
3570 | } | |
3571 | ||
3572 | int SSL_client_version(const SSL *s) | |
3573 | { | |
3574 | return s->client_version; | |
0f113f3e | 3575 | } |
58964a49 | 3576 | |
0821bcd4 | 3577 | SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) |
0f113f3e | 3578 | { |
6546e9b2 | 3579 | return ssl->ctx; |
0f113f3e MC |
3580 | } |
3581 | ||
3582 | SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx) | |
3583 | { | |
24a0d393 | 3584 | CERT *new_cert; |
0f113f3e MC |
3585 | if (ssl->ctx == ctx) |
3586 | return ssl->ctx; | |
0f113f3e | 3587 | if (ctx == NULL) |
222da979 | 3588 | ctx = ssl->session_ctx; |
24a0d393 KR |
3589 | new_cert = ssl_cert_dup(ctx->cert); |
3590 | if (new_cert == NULL) { | |
3591 | return NULL; | |
0f113f3e | 3592 | } |
21181889 MC |
3593 | |
3594 | if (!custom_exts_copy_flags(&new_cert->custext, &ssl->cert->custext)) { | |
3595 | ssl_cert_free(new_cert); | |
3596 | return NULL; | |
3597 | } | |
3598 | ||
24a0d393 KR |
3599 | ssl_cert_free(ssl->cert); |
3600 | ssl->cert = new_cert; | |
0f113f3e MC |
3601 | |
3602 | /* | |
3603 | * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH), | |
3604 | * so setter APIs must prevent invalid lengths from entering the system. | |
3605 | */ | |
380a522f MC |
3606 | if (!ossl_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx))) |
3607 | return NULL; | |
0f113f3e MC |
3608 | |
3609 | /* | |
3610 | * If the session ID context matches that of the parent SSL_CTX, | |
3611 | * inherit it from the new SSL_CTX as well. If however the context does | |
3612 | * not match (i.e., it was set per-ssl with SSL_set_session_id_context), | |
3613 | * leave it unchanged. | |
3614 | */ | |
3615 | if ((ssl->ctx != NULL) && | |
3616 | (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) && | |
3617 | (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) { | |
3618 | ssl->sid_ctx_length = ctx->sid_ctx_length; | |
3619 | memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx)); | |
3620 | } | |
3621 | ||
16203f7b | 3622 | SSL_CTX_up_ref(ctx); |
a230b26e | 3623 | SSL_CTX_free(ssl->ctx); /* decrement reference count */ |
0f113f3e MC |
3624 | ssl->ctx = ctx; |
3625 | ||
16203f7b | 3626 | return ssl->ctx; |
0f113f3e | 3627 | } |
ed3883d2 | 3628 | |
4f43d0e7 | 3629 | int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) |
0f113f3e MC |
3630 | { |
3631 | return (X509_STORE_set_default_paths(ctx->cert_store)); | |
3632 | } | |
58964a49 | 3633 | |
d84a7b20 MC |
3634 | int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx) |
3635 | { | |
3636 | X509_LOOKUP *lookup; | |
3637 | ||
3638 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir()); | |
3639 | if (lookup == NULL) | |
3640 | return 0; | |
3641 | X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT); | |
3642 | ||
3643 | /* Clear any errors if the default directory does not exist */ | |
3644 | ERR_clear_error(); | |
3645 | ||
3646 | return 1; | |
3647 | } | |
3648 | ||
3649 | int SSL_CTX_set_default_verify_file(SSL_CTX *ctx) | |
3650 | { | |
3651 | X509_LOOKUP *lookup; | |
3652 | ||
3653 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file()); | |
3654 | if (lookup == NULL) | |
3655 | return 0; | |
3656 | ||
3657 | X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT); | |
3658 | ||
3659 | /* Clear any errors if the default file does not exist */ | |
3660 | ERR_clear_error(); | |
3661 | ||
3662 | return 1; | |
3663 | } | |
3664 | ||
303c0028 | 3665 | int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, |
0f113f3e MC |
3666 | const char *CApath) |
3667 | { | |
3668 | return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); | |
3669 | } | |
58964a49 | 3670 | |
45d87a1f | 3671 | void SSL_set_info_callback(SSL *ssl, |
0f113f3e MC |
3672 | void (*cb) (const SSL *ssl, int type, int val)) |
3673 | { | |
3674 | ssl->info_callback = cb; | |
3675 | } | |
3676 | ||
3677 | /* | |
3678 | * One compiler (Diab DCC) doesn't like argument names in returned function | |
3679 | * pointer. | |
3680 | */ | |
3681 | void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ , | |
3682 | int /* type */ , | |
3683 | int /* val */ ) { | |
3684 | return ssl->info_callback; | |
3685 | } | |
58964a49 | 3686 | |
0f113f3e MC |
3687 | void SSL_set_verify_result(SSL *ssl, long arg) |
3688 | { | |
3689 | ssl->verify_result = arg; | |
3690 | } | |
58964a49 | 3691 | |
0821bcd4 | 3692 | long SSL_get_verify_result(const SSL *ssl) |
0f113f3e MC |
3693 | { |
3694 | return (ssl->verify_result); | |
3695 | } | |
3696 | ||
d9f1c639 | 3697 | size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 3698 | { |
6b8f5d0d | 3699 | if (outlen == 0) |
858618e7 NM |
3700 | return sizeof(ssl->s3->client_random); |
3701 | if (outlen > sizeof(ssl->s3->client_random)) | |
3702 | outlen = sizeof(ssl->s3->client_random); | |
3703 | memcpy(out, ssl->s3->client_random, outlen); | |
d9f1c639 | 3704 | return outlen; |
858618e7 NM |
3705 | } |
3706 | ||
d9f1c639 | 3707 | size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 3708 | { |
6b8f5d0d | 3709 | if (outlen == 0) |
858618e7 NM |
3710 | return sizeof(ssl->s3->server_random); |
3711 | if (outlen > sizeof(ssl->s3->server_random)) | |
3712 | outlen = sizeof(ssl->s3->server_random); | |
3713 | memcpy(out, ssl->s3->server_random, outlen); | |
d9f1c639 | 3714 | return outlen; |
858618e7 NM |
3715 | } |
3716 | ||
d9f1c639 | 3717 | size_t SSL_SESSION_get_master_key(const SSL_SESSION *session, |
a230b26e | 3718 | unsigned char *out, size_t outlen) |
858618e7 | 3719 | { |
d9f1c639 MC |
3720 | if (outlen == 0) |
3721 | return session->master_key_length; | |
8c1a5343 | 3722 | if (outlen > session->master_key_length) |
858618e7 NM |
3723 | outlen = session->master_key_length; |
3724 | memcpy(out, session->master_key, outlen); | |
d9f1c639 | 3725 | return outlen; |
858618e7 NM |
3726 | } |
3727 | ||
725b0f1e | 3728 | int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in, |
911d63f2 MC |
3729 | size_t len) |
3730 | { | |
3731 | if (len > sizeof(sess->master_key)) | |
3732 | return 0; | |
3733 | ||
3734 | memcpy(sess->master_key, in, len); | |
3735 | sess->master_key_length = len; | |
911d63f2 MC |
3736 | return 1; |
3737 | } | |
3738 | ||
3739 | ||
0f113f3e MC |
3740 | int SSL_set_ex_data(SSL *s, int idx, void *arg) |
3741 | { | |
3742 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | |
3743 | } | |
3744 | ||
3745 | void *SSL_get_ex_data(const SSL *s, int idx) | |
3746 | { | |
3747 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | |
3748 | } | |
3749 | ||
0f113f3e MC |
3750 | int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) |
3751 | { | |
3752 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | |
3753 | } | |
3754 | ||
3755 | void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) | |
3756 | { | |
3757 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | |
3758 | } | |
58964a49 | 3759 | |
0821bcd4 | 3760 | X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) |
0f113f3e MC |
3761 | { |
3762 | return (ctx->cert_store); | |
3763 | } | |
413c4f45 | 3764 | |
0f113f3e MC |
3765 | void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) |
3766 | { | |
222561fe | 3767 | X509_STORE_free(ctx->cert_store); |
0f113f3e MC |
3768 | ctx->cert_store = store; |
3769 | } | |
413c4f45 | 3770 | |
b50052db TS |
3771 | void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store) |
3772 | { | |
3773 | if (store != NULL) | |
3774 | X509_STORE_up_ref(store); | |
3775 | SSL_CTX_set_cert_store(ctx, store); | |
3776 | } | |
3777 | ||
0821bcd4 | 3778 | int SSL_want(const SSL *s) |
0f113f3e MC |
3779 | { |
3780 | return (s->rwstate); | |
3781 | } | |
413c4f45 | 3782 | |
0f113f3e | 3783 | /** |
4f43d0e7 BL |
3784 | * \brief Set the callback for generating temporary DH keys. |
3785 | * \param ctx the SSL context. | |
3786 | * \param dh the callback | |
3787 | */ | |
3788 | ||
bc36ee62 | 3789 | #ifndef OPENSSL_NO_DH |
0f113f3e MC |
3790 | void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, |
3791 | DH *(*dh) (SSL *ssl, int is_export, | |
3792 | int keylength)) | |
3793 | { | |
3794 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3795 | } | |
f8c3c05d | 3796 | |
0f113f3e MC |
3797 | void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export, |
3798 | int keylength)) | |
3799 | { | |
3800 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3801 | } | |
79df9d62 | 3802 | #endif |
15d21c2d | 3803 | |
ddac1974 NL |
3804 | #ifndef OPENSSL_NO_PSK |
3805 | int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) | |
0f113f3e MC |
3806 | { |
3807 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { | |
a230b26e | 3808 | SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); |
0f113f3e MC |
3809 | return 0; |
3810 | } | |
df6da24b | 3811 | OPENSSL_free(ctx->cert->psk_identity_hint); |
0f113f3e | 3812 | if (identity_hint != NULL) { |
7644a9ae | 3813 | ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 3814 | if (ctx->cert->psk_identity_hint == NULL) |
0f113f3e MC |
3815 | return 0; |
3816 | } else | |
df6da24b | 3817 | ctx->cert->psk_identity_hint = NULL; |
0f113f3e MC |
3818 | return 1; |
3819 | } | |
ddac1974 NL |
3820 | |
3821 | int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) | |
0f113f3e MC |
3822 | { |
3823 | if (s == NULL) | |
3824 | return 0; | |
3825 | ||
0f113f3e MC |
3826 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { |
3827 | SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); | |
3828 | return 0; | |
3829 | } | |
df6da24b | 3830 | OPENSSL_free(s->cert->psk_identity_hint); |
0f113f3e | 3831 | if (identity_hint != NULL) { |
7644a9ae | 3832 | s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 3833 | if (s->cert->psk_identity_hint == NULL) |
0f113f3e MC |
3834 | return 0; |
3835 | } else | |
df6da24b | 3836 | s->cert->psk_identity_hint = NULL; |
0f113f3e MC |
3837 | return 1; |
3838 | } | |
ddac1974 NL |
3839 | |
3840 | const char *SSL_get_psk_identity_hint(const SSL *s) | |
0f113f3e MC |
3841 | { |
3842 | if (s == NULL || s->session == NULL) | |
3843 | return NULL; | |
3844 | return (s->session->psk_identity_hint); | |
3845 | } | |
ddac1974 NL |
3846 | |
3847 | const char *SSL_get_psk_identity(const SSL *s) | |
0f113f3e MC |
3848 | { |
3849 | if (s == NULL || s->session == NULL) | |
3850 | return NULL; | |
3851 | return (s->session->psk_identity); | |
3852 | } | |
7806f3dd | 3853 | |
8cbfcc70 | 3854 | void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb) |
0f113f3e MC |
3855 | { |
3856 | s->psk_client_callback = cb; | |
3857 | } | |
7806f3dd | 3858 | |
8cbfcc70 | 3859 | void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb) |
0f113f3e MC |
3860 | { |
3861 | ctx->psk_client_callback = cb; | |
3862 | } | |
7806f3dd | 3863 | |
8cbfcc70 | 3864 | void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb) |
0f113f3e MC |
3865 | { |
3866 | s->psk_server_callback = cb; | |
3867 | } | |
7806f3dd | 3868 | |
8cbfcc70 | 3869 | void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb) |
0f113f3e MC |
3870 | { |
3871 | ctx->psk_server_callback = cb; | |
3872 | } | |
3873 | #endif | |
3874 | ||
f46184bd MC |
3875 | void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb) |
3876 | { | |
3877 | s->psk_find_session_cb = cb; | |
3878 | } | |
3879 | ||
3880 | void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx, | |
3881 | SSL_psk_find_session_cb_func cb) | |
3882 | { | |
3883 | ctx->psk_find_session_cb = cb; | |
3884 | } | |
3885 | ||
3886 | void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb) | |
3887 | { | |
3888 | s->psk_use_session_cb = cb; | |
3889 | } | |
3890 | ||
3891 | void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx, | |
3892 | SSL_psk_use_session_cb_func cb) | |
3893 | { | |
3894 | ctx->psk_use_session_cb = cb; | |
3895 | } | |
3896 | ||
0f113f3e MC |
3897 | void SSL_CTX_set_msg_callback(SSL_CTX *ctx, |
3898 | void (*cb) (int write_p, int version, | |
3899 | int content_type, const void *buf, | |
3900 | size_t len, SSL *ssl, void *arg)) | |
3901 | { | |
3902 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
3903 | } | |
3904 | ||
3905 | void SSL_set_msg_callback(SSL *ssl, | |
3906 | void (*cb) (int write_p, int version, | |
3907 | int content_type, const void *buf, | |
3908 | size_t len, SSL *ssl, void *arg)) | |
3909 | { | |
3910 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
3911 | } | |
a661b653 | 3912 | |
7c2d4fee | 3913 | void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, |
0f113f3e MC |
3914 | int (*cb) (SSL *ssl, |
3915 | int | |
3916 | is_forward_secure)) | |
3917 | { | |
3918 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
3919 | (void (*)(void))cb); | |
3920 | } | |
3921 | ||
7c2d4fee | 3922 | void SSL_set_not_resumable_session_callback(SSL *ssl, |
0f113f3e MC |
3923 | int (*cb) (SSL *ssl, |
3924 | int is_forward_secure)) | |
3925 | { | |
3926 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
3927 | (void (*)(void))cb); | |
3928 | } | |
3929 | ||
c649d10d TS |
3930 | void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx, |
3931 | size_t (*cb) (SSL *ssl, int type, | |
3932 | size_t len, void *arg)) | |
3933 | { | |
3934 | ctx->record_padding_cb = cb; | |
3935 | } | |
3936 | ||
3937 | void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg) | |
3938 | { | |
3939 | ctx->record_padding_arg = arg; | |
3940 | } | |
3941 | ||
3942 | void *SSL_CTX_get_record_padding_callback_arg(SSL_CTX *ctx) | |
3943 | { | |
3944 | return ctx->record_padding_arg; | |
3945 | } | |
3946 | ||
3947 | int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size) | |
3948 | { | |
3949 | /* block size of 0 or 1 is basically no padding */ | |
3950 | if (block_size == 1) | |
3951 | ctx->block_padding = 0; | |
3952 | else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH) | |
3953 | ctx->block_padding = block_size; | |
3954 | else | |
3955 | return 0; | |
3956 | return 1; | |
3957 | } | |
3958 | ||
3959 | void SSL_set_record_padding_callback(SSL *ssl, | |
3960 | size_t (*cb) (SSL *ssl, int type, | |
3961 | size_t len, void *arg)) | |
3962 | { | |
3963 | ssl->record_padding_cb = cb; | |
3964 | } | |
3965 | ||
3966 | void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg) | |
3967 | { | |
3968 | ssl->record_padding_arg = arg; | |
3969 | } | |
3970 | ||
3971 | void *SSL_get_record_padding_callback_arg(SSL *ssl) | |
3972 | { | |
3973 | return ssl->record_padding_arg; | |
3974 | } | |
3975 | ||
3976 | int SSL_set_block_padding(SSL *ssl, size_t block_size) | |
3977 | { | |
3978 | /* block size of 0 or 1 is basically no padding */ | |
3979 | if (block_size == 1) | |
3980 | ssl->block_padding = 0; | |
3981 | else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH) | |
3982 | ssl->block_padding = block_size; | |
3983 | else | |
3984 | return 0; | |
3985 | return 1; | |
3986 | } | |
3987 | ||
0f113f3e MC |
3988 | /* |
3989 | * Allocates new EVP_MD_CTX and sets pointer to it into given pointer | |
8483a003 | 3990 | * variable, freeing EVP_MD_CTX previously stored in that variable, if any. |
69687aa8 | 3991 | * If EVP_MD pointer is passed, initializes ctx with this |md|. |
48722ff5 | 3992 | * Returns the newly allocated ctx; |
8671b898 | 3993 | */ |
b948e2c5 | 3994 | |
0f113f3e | 3995 | EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md) |
b948e2c5 | 3996 | { |
0f113f3e | 3997 | ssl_clear_hash_ctx(hash); |
bfb0641f | 3998 | *hash = EVP_MD_CTX_new(); |
5f3d93e4 | 3999 | if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) { |
bfb0641f | 4000 | EVP_MD_CTX_free(*hash); |
5f3d93e4 MC |
4001 | *hash = NULL; |
4002 | return NULL; | |
4003 | } | |
0f113f3e | 4004 | return *hash; |
b948e2c5 | 4005 | } |
0f113f3e MC |
4006 | |
4007 | void ssl_clear_hash_ctx(EVP_MD_CTX **hash) | |
b948e2c5 DSH |
4008 | { |
4009 | ||
0d9824c1 | 4010 | EVP_MD_CTX_free(*hash); |
0f113f3e | 4011 | *hash = NULL; |
b948e2c5 | 4012 | } |
a661b653 | 4013 | |
48fbcbac | 4014 | /* Retrieve handshake hashes */ |
8c1a5343 MC |
4015 | int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen, |
4016 | size_t *hashlen) | |
48fbcbac | 4017 | { |
6e59a892 | 4018 | EVP_MD_CTX *ctx = NULL; |
28ba2541 | 4019 | EVP_MD_CTX *hdgst = s->s3->handshake_dgst; |
8c1a5343 MC |
4020 | int hashleni = EVP_MD_CTX_size(hdgst); |
4021 | int ret = 0; | |
4022 | ||
4023 | if (hashleni < 0 || (size_t)hashleni > outlen) | |
28ba2541 | 4024 | goto err; |
8c1a5343 | 4025 | |
bfb0641f | 4026 | ctx = EVP_MD_CTX_new(); |
8c1a5343 | 4027 | if (ctx == NULL) |
6e59a892 | 4028 | goto err; |
8c1a5343 | 4029 | |
6e59a892 RL |
4030 | if (!EVP_MD_CTX_copy_ex(ctx, hdgst) |
4031 | || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) | |
8c1a5343 MC |
4032 | goto err; |
4033 | ||
4034 | *hashlen = hashleni; | |
4035 | ||
4036 | ret = 1; | |
48fbcbac | 4037 | err: |
bfb0641f | 4038 | EVP_MD_CTX_free(ctx); |
48fbcbac DSH |
4039 | return ret; |
4040 | } | |
4041 | ||
b577fd0b | 4042 | int SSL_session_reused(SSL *s) |
0f113f3e MC |
4043 | { |
4044 | return s->hit; | |
4045 | } | |
08557cf2 | 4046 | |
69443116 | 4047 | int SSL_is_server(const SSL *s) |
0f113f3e MC |
4048 | { |
4049 | return s->server; | |
4050 | } | |
87adf1fa | 4051 | |
47153c72 RS |
4052 | #if OPENSSL_API_COMPAT < 0x10100000L |
4053 | void SSL_set_debug(SSL *s, int debug) | |
4054 | { | |
4055 | /* Old function was do-nothing anyway... */ | |
4056 | (void)s; | |
4057 | (void)debug; | |
4058 | } | |
4059 | #endif | |
4060 | ||
b362ccab | 4061 | void SSL_set_security_level(SSL *s, int level) |
0f113f3e MC |
4062 | { |
4063 | s->cert->sec_level = level; | |
4064 | } | |
b362ccab DSH |
4065 | |
4066 | int SSL_get_security_level(const SSL *s) | |
0f113f3e MC |
4067 | { |
4068 | return s->cert->sec_level; | |
4069 | } | |
b362ccab | 4070 | |
0f113f3e | 4071 | void SSL_set_security_callback(SSL *s, |
a230b26e EK |
4072 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
4073 | int op, int bits, int nid, | |
4074 | void *other, void *ex)) | |
0f113f3e MC |
4075 | { |
4076 | s->cert->sec_cb = cb; | |
4077 | } | |
b362ccab | 4078 | |
a230b26e EK |
4079 | int (*SSL_get_security_callback(const SSL *s)) (const SSL *s, |
4080 | const SSL_CTX *ctx, int op, | |
4081 | int bits, int nid, void *other, | |
4082 | void *ex) { | |
0f113f3e MC |
4083 | return s->cert->sec_cb; |
4084 | } | |
b362ccab DSH |
4085 | |
4086 | void SSL_set0_security_ex_data(SSL *s, void *ex) | |
0f113f3e MC |
4087 | { |
4088 | s->cert->sec_ex = ex; | |
4089 | } | |
b362ccab DSH |
4090 | |
4091 | void *SSL_get0_security_ex_data(const SSL *s) | |
0f113f3e MC |
4092 | { |
4093 | return s->cert->sec_ex; | |
4094 | } | |
b362ccab DSH |
4095 | |
4096 | void SSL_CTX_set_security_level(SSL_CTX *ctx, int level) | |
0f113f3e MC |
4097 | { |
4098 | ctx->cert->sec_level = level; | |
4099 | } | |
b362ccab DSH |
4100 | |
4101 | int SSL_CTX_get_security_level(const SSL_CTX *ctx) | |
0f113f3e MC |
4102 | { |
4103 | return ctx->cert->sec_level; | |
4104 | } | |
b362ccab | 4105 | |
0f113f3e | 4106 | void SSL_CTX_set_security_callback(SSL_CTX *ctx, |
a230b26e EK |
4107 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
4108 | int op, int bits, int nid, | |
4109 | void *other, void *ex)) | |
0f113f3e MC |
4110 | { |
4111 | ctx->cert->sec_cb = cb; | |
4112 | } | |
b362ccab | 4113 | |
e4646a89 KR |
4114 | int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s, |
4115 | const SSL_CTX *ctx, | |
0f113f3e MC |
4116 | int op, int bits, |
4117 | int nid, | |
4118 | void *other, | |
4119 | void *ex) { | |
4120 | return ctx->cert->sec_cb; | |
4121 | } | |
b362ccab DSH |
4122 | |
4123 | void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex) | |
0f113f3e MC |
4124 | { |
4125 | ctx->cert->sec_ex = ex; | |
4126 | } | |
b362ccab DSH |
4127 | |
4128 | void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx) | |
0f113f3e MC |
4129 | { |
4130 | return ctx->cert->sec_ex; | |
4131 | } | |
b362ccab | 4132 | |
8106cb8b VD |
4133 | /* |
4134 | * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that | |
4135 | * can return unsigned long, instead of the generic long return value from the | |
4136 | * control interface. | |
4137 | */ | |
4138 | unsigned long SSL_CTX_get_options(const SSL_CTX *ctx) | |
4139 | { | |
4140 | return ctx->options; | |
4141 | } | |
a230b26e EK |
4142 | |
4143 | unsigned long SSL_get_options(const SSL *s) | |
8106cb8b VD |
4144 | { |
4145 | return s->options; | |
4146 | } | |
a230b26e | 4147 | |
8106cb8b VD |
4148 | unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op) |
4149 | { | |
4150 | return ctx->options |= op; | |
4151 | } | |
a230b26e | 4152 | |
8106cb8b VD |
4153 | unsigned long SSL_set_options(SSL *s, unsigned long op) |
4154 | { | |
4155 | return s->options |= op; | |
4156 | } | |
a230b26e | 4157 | |
8106cb8b VD |
4158 | unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op) |
4159 | { | |
4160 | return ctx->options &= ~op; | |
4161 | } | |
a230b26e | 4162 | |
8106cb8b VD |
4163 | unsigned long SSL_clear_options(SSL *s, unsigned long op) |
4164 | { | |
4165 | return s->options &= ~op; | |
4166 | } | |
4167 | ||
696178ed DSH |
4168 | STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s) |
4169 | { | |
4170 | return s->verified_chain; | |
4171 | } | |
4172 | ||
0f113f3e | 4173 | IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); |
ed29e82a RP |
4174 | |
4175 | #ifndef OPENSSL_NO_CT | |
4176 | ||
4177 | /* | |
4178 | * Moves SCTs from the |src| stack to the |dst| stack. | |
4179 | * The source of each SCT will be set to |origin|. | |
4180 | * If |dst| points to a NULL pointer, a new stack will be created and owned by | |
4181 | * the caller. | |
4182 | * Returns the number of SCTs moved, or a negative integer if an error occurs. | |
4183 | */ | |
a230b26e EK |
4184 | static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src, |
4185 | sct_source_t origin) | |
ed29e82a RP |
4186 | { |
4187 | int scts_moved = 0; | |
4188 | SCT *sct = NULL; | |
4189 | ||
4190 | if (*dst == NULL) { | |
4191 | *dst = sk_SCT_new_null(); | |
4192 | if (*dst == NULL) { | |
4193 | SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE); | |
4194 | goto err; | |
4195 | } | |
4196 | } | |
4197 | ||
4198 | while ((sct = sk_SCT_pop(src)) != NULL) { | |
4199 | if (SCT_set_source(sct, origin) != 1) | |
4200 | goto err; | |
4201 | ||
4202 | if (sk_SCT_push(*dst, sct) <= 0) | |
4203 | goto err; | |
4204 | scts_moved += 1; | |
4205 | } | |
4206 | ||
4207 | return scts_moved; | |
a230b26e | 4208 | err: |
ed29e82a | 4209 | if (sct != NULL) |
a230b26e | 4210 | sk_SCT_push(src, sct); /* Put the SCT back */ |
cc7113e8 | 4211 | return -1; |
ed29e82a RP |
4212 | } |
4213 | ||
4214 | /* | |
a230b26e | 4215 | * Look for data collected during ServerHello and parse if found. |
6b13bd1d | 4216 | * Returns the number of SCTs extracted. |
a230b26e | 4217 | */ |
ed29e82a RP |
4218 | static int ct_extract_tls_extension_scts(SSL *s) |
4219 | { | |
4220 | int scts_extracted = 0; | |
4221 | ||
aff8c126 RS |
4222 | if (s->ext.scts != NULL) { |
4223 | const unsigned char *p = s->ext.scts; | |
4224 | STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len); | |
ed29e82a RP |
4225 | |
4226 | scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION); | |
4227 | ||
4228 | SCT_LIST_free(scts); | |
4229 | } | |
4230 | ||
4231 | return scts_extracted; | |
4232 | } | |
4233 | ||
4234 | /* | |
4235 | * Checks for an OCSP response and then attempts to extract any SCTs found if it | |
4236 | * contains an SCT X509 extension. They will be stored in |s->scts|. | |
4237 | * Returns: | |
4238 | * - The number of SCTs extracted, assuming an OCSP response exists. | |
4239 | * - 0 if no OCSP response exists or it contains no SCTs. | |
4240 | * - A negative integer if an error occurs. | |
4241 | */ | |
4242 | static int ct_extract_ocsp_response_scts(SSL *s) | |
4243 | { | |
a230b26e | 4244 | # ifndef OPENSSL_NO_OCSP |
ed29e82a RP |
4245 | int scts_extracted = 0; |
4246 | const unsigned char *p; | |
4247 | OCSP_BASICRESP *br = NULL; | |
4248 | OCSP_RESPONSE *rsp = NULL; | |
4249 | STACK_OF(SCT) *scts = NULL; | |
4250 | int i; | |
4251 | ||
aff8c126 | 4252 | if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0) |
ed29e82a RP |
4253 | goto err; |
4254 | ||
aff8c126 RS |
4255 | p = s->ext.ocsp.resp; |
4256 | rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len); | |
ed29e82a RP |
4257 | if (rsp == NULL) |
4258 | goto err; | |
4259 | ||
4260 | br = OCSP_response_get1_basic(rsp); | |
4261 | if (br == NULL) | |
4262 | goto err; | |
4263 | ||
4264 | for (i = 0; i < OCSP_resp_count(br); ++i) { | |
4265 | OCSP_SINGLERESP *single = OCSP_resp_get0(br, i); | |
4266 | ||
4267 | if (single == NULL) | |
4268 | continue; | |
4269 | ||
a230b26e EK |
4270 | scts = |
4271 | OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL); | |
4272 | scts_extracted = | |
4273 | ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE); | |
ed29e82a RP |
4274 | if (scts_extracted < 0) |
4275 | goto err; | |
4276 | } | |
a230b26e | 4277 | err: |
ed29e82a RP |
4278 | SCT_LIST_free(scts); |
4279 | OCSP_BASICRESP_free(br); | |
4280 | OCSP_RESPONSE_free(rsp); | |
4281 | return scts_extracted; | |
a230b26e | 4282 | # else |
3e41ac35 MC |
4283 | /* Behave as if no OCSP response exists */ |
4284 | return 0; | |
a230b26e | 4285 | # endif |
ed29e82a RP |
4286 | } |
4287 | ||
4288 | /* | |
4289 | * Attempts to extract SCTs from the peer certificate. | |
4290 | * Return the number of SCTs extracted, or a negative integer if an error | |
4291 | * occurs. | |
4292 | */ | |
4293 | static int ct_extract_x509v3_extension_scts(SSL *s) | |
4294 | { | |
4295 | int scts_extracted = 0; | |
3f3c7d26 | 4296 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
ed29e82a RP |
4297 | |
4298 | if (cert != NULL) { | |
4299 | STACK_OF(SCT) *scts = | |
4300 | X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL); | |
4301 | ||
4302 | scts_extracted = | |
4303 | ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION); | |
4304 | ||
4305 | SCT_LIST_free(scts); | |
4306 | } | |
4307 | ||
4308 | return scts_extracted; | |
4309 | } | |
4310 | ||
4311 | /* | |
4312 | * Attempts to find all received SCTs by checking TLS extensions, the OCSP | |
4313 | * response (if it exists) and X509v3 extensions in the certificate. | |
4314 | * Returns NULL if an error occurs. | |
4315 | */ | |
4316 | const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s) | |
4317 | { | |
4318 | if (!s->scts_parsed) { | |
4319 | if (ct_extract_tls_extension_scts(s) < 0 || | |
4320 | ct_extract_ocsp_response_scts(s) < 0 || | |
4321 | ct_extract_x509v3_extension_scts(s) < 0) | |
4322 | goto err; | |
4323 | ||
4324 | s->scts_parsed = 1; | |
4325 | } | |
4326 | return s->scts; | |
a230b26e | 4327 | err: |
ed29e82a RP |
4328 | return NULL; |
4329 | } | |
4330 | ||
a230b26e | 4331 | static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx, |
43341433 | 4332 | const STACK_OF(SCT) *scts, void *unused_arg) |
ed29e82a | 4333 | { |
43341433 VD |
4334 | return 1; |
4335 | } | |
4336 | ||
a230b26e | 4337 | static int ct_strict(const CT_POLICY_EVAL_CTX * ctx, |
43341433 VD |
4338 | const STACK_OF(SCT) *scts, void *unused_arg) |
4339 | { | |
4340 | int count = scts != NULL ? sk_SCT_num(scts) : 0; | |
4341 | int i; | |
ed29e82a | 4342 | |
43341433 VD |
4343 | for (i = 0; i < count; ++i) { |
4344 | SCT *sct = sk_SCT_value(scts, i); | |
4345 | int status = SCT_get_validation_status(sct); | |
4346 | ||
4347 | if (status == SCT_VALIDATION_STATUS_VALID) | |
4348 | return 1; | |
4349 | } | |
4350 | SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS); | |
4351 | return 0; | |
4352 | } | |
4353 | ||
4354 | int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback, | |
4355 | void *arg) | |
4356 | { | |
ed29e82a RP |
4357 | /* |
4358 | * Since code exists that uses the custom extension handler for CT, look | |
4359 | * for this and throw an error if they have already registered to use CT. | |
4360 | */ | |
4361 | if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx, | |
a230b26e EK |
4362 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4363 | { | |
ed29e82a RP |
4364 | SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK, |
4365 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4366 | return 0; |
ed29e82a RP |
4367 | } |
4368 | ||
ed29e82a | 4369 | if (callback != NULL) { |
a230b26e EK |
4370 | /* |
4371 | * If we are validating CT, then we MUST accept SCTs served via OCSP | |
4372 | */ | |
ed29e82a | 4373 | if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp)) |
43341433 | 4374 | return 0; |
ed29e82a RP |
4375 | } |
4376 | ||
43341433 VD |
4377 | s->ct_validation_callback = callback; |
4378 | s->ct_validation_callback_arg = arg; | |
4379 | ||
4380 | return 1; | |
ed29e82a RP |
4381 | } |
4382 | ||
43341433 | 4383 | int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx, |
a230b26e | 4384 | ssl_ct_validation_cb callback, void *arg) |
ed29e82a | 4385 | { |
ed29e82a RP |
4386 | /* |
4387 | * Since code exists that uses the custom extension handler for CT, look for | |
4388 | * this and throw an error if they have already registered to use CT. | |
4389 | */ | |
4390 | if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx, | |
a230b26e EK |
4391 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4392 | { | |
ed29e82a RP |
4393 | SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK, |
4394 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4395 | return 0; |
ed29e82a RP |
4396 | } |
4397 | ||
4398 | ctx->ct_validation_callback = callback; | |
4399 | ctx->ct_validation_callback_arg = arg; | |
43341433 | 4400 | return 1; |
ed29e82a RP |
4401 | } |
4402 | ||
43341433 | 4403 | int SSL_ct_is_enabled(const SSL *s) |
ed29e82a | 4404 | { |
43341433 | 4405 | return s->ct_validation_callback != NULL; |
ed29e82a RP |
4406 | } |
4407 | ||
43341433 | 4408 | int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx) |
ed29e82a | 4409 | { |
43341433 | 4410 | return ctx->ct_validation_callback != NULL; |
ed29e82a RP |
4411 | } |
4412 | ||
4d482ee2 | 4413 | int ssl_validate_ct(SSL *s) |
ed29e82a RP |
4414 | { |
4415 | int ret = 0; | |
3f3c7d26 | 4416 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
43341433 | 4417 | X509 *issuer; |
b9aec69a | 4418 | SSL_DANE *dane = &s->dane; |
ed29e82a RP |
4419 | CT_POLICY_EVAL_CTX *ctx = NULL; |
4420 | const STACK_OF(SCT) *scts; | |
4421 | ||
43341433 VD |
4422 | /* |
4423 | * If no callback is set, the peer is anonymous, or its chain is invalid, | |
4424 | * skip SCT validation - just return success. Applications that continue | |
4425 | * handshakes without certificates, with unverified chains, or pinned leaf | |
4426 | * certificates are outside the scope of the WebPKI and CT. | |
4427 | * | |
4428 | * The above exclusions notwithstanding the vast majority of peers will | |
4429 | * have rather ordinary certificate chains validated by typical | |
4430 | * applications that perform certificate verification and therefore will | |
4431 | * process SCTs when enabled. | |
4432 | */ | |
4433 | if (s->ct_validation_callback == NULL || cert == NULL || | |
4434 | s->verify_result != X509_V_OK || | |
a230b26e | 4435 | s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1) |
ed29e82a RP |
4436 | return 1; |
4437 | ||
43341433 VD |
4438 | /* |
4439 | * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3) | |
4440 | * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2 | |
4441 | */ | |
4442 | if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) { | |
4443 | switch (dane->mtlsa->usage) { | |
4444 | case DANETLS_USAGE_DANE_TA: | |
4445 | case DANETLS_USAGE_DANE_EE: | |
4446 | return 1; | |
4447 | } | |
ed29e82a RP |
4448 | } |
4449 | ||
ed29e82a RP |
4450 | ctx = CT_POLICY_EVAL_CTX_new(); |
4451 | if (ctx == NULL) { | |
4452 | SSLerr(SSL_F_SSL_VALIDATE_CT, ERR_R_MALLOC_FAILURE); | |
4453 | goto end; | |
4454 | } | |
4455 | ||
43341433 | 4456 | issuer = sk_X509_value(s->verified_chain, 1); |
a1bb7708 RP |
4457 | CT_POLICY_EVAL_CTX_set1_cert(ctx, cert); |
4458 | CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer); | |
4459 | CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx, s->ctx->ctlog_store); | |
6a71e06d RP |
4460 | CT_POLICY_EVAL_CTX_set_time( |
4461 | ctx, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s)) * 1000); | |
ed29e82a RP |
4462 | |
4463 | scts = SSL_get0_peer_scts(s); | |
4464 | ||
43341433 VD |
4465 | /* |
4466 | * This function returns success (> 0) only when all the SCTs are valid, 0 | |
4467 | * when some are invalid, and < 0 on various internal errors (out of | |
4468 | * memory, etc.). Having some, or even all, invalid SCTs is not sufficient | |
4469 | * reason to abort the handshake, that decision is up to the callback. | |
4470 | * Therefore, we error out only in the unexpected case that the return | |
4471 | * value is negative. | |
4472 | * | |
4473 | * XXX: One might well argue that the return value of this function is an | |
f430ba31 | 4474 | * unfortunate design choice. Its job is only to determine the validation |
43341433 VD |
4475 | * status of each of the provided SCTs. So long as it correctly separates |
4476 | * the wheat from the chaff it should return success. Failure in this case | |
4477 | * ought to correspond to an inability to carry out its duties. | |
4478 | */ | |
4479 | if (SCT_LIST_validate(scts, ctx) < 0) { | |
ed29e82a RP |
4480 | SSLerr(SSL_F_SSL_VALIDATE_CT, SSL_R_SCT_VERIFICATION_FAILED); |
4481 | goto end; | |
4482 | } | |
4483 | ||
4484 | ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg); | |
4485 | if (ret < 0) | |
a230b26e | 4486 | ret = 0; /* This function returns 0 on failure */ |
ed29e82a | 4487 | |
a230b26e | 4488 | end: |
ed29e82a | 4489 | CT_POLICY_EVAL_CTX_free(ctx); |
f75b34c8 VD |
4490 | /* |
4491 | * With SSL_VERIFY_NONE the session may be cached and re-used despite a | |
4492 | * failure return code here. Also the application may wish the complete | |
4493 | * the handshake, and then disconnect cleanly at a higher layer, after | |
4494 | * checking the verification status of the completed connection. | |
4495 | * | |
4496 | * We therefore force a certificate verification failure which will be | |
4497 | * visible via SSL_get_verify_result() and cached as part of any resumed | |
4498 | * session. | |
4499 | * | |
4500 | * Note: the permissive callback is for information gathering only, always | |
4501 | * returns success, and does not affect verification status. Only the | |
4502 | * strict callback or a custom application-specified callback can trigger | |
4503 | * connection failure or record a verification error. | |
4504 | */ | |
4505 | if (ret <= 0) | |
4506 | s->verify_result = X509_V_ERR_NO_VALID_SCTS; | |
ed29e82a RP |
4507 | return ret; |
4508 | } | |
4509 | ||
43341433 VD |
4510 | int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode) |
4511 | { | |
4512 | switch (validation_mode) { | |
4513 | default: | |
4514 | SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
4515 | return 0; | |
4516 | case SSL_CT_VALIDATION_PERMISSIVE: | |
4517 | return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL); | |
4518 | case SSL_CT_VALIDATION_STRICT: | |
4519 | return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL); | |
4520 | } | |
4521 | } | |
4522 | ||
4523 | int SSL_enable_ct(SSL *s, int validation_mode) | |
4524 | { | |
4525 | switch (validation_mode) { | |
4526 | default: | |
4527 | SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
4528 | return 0; | |
4529 | case SSL_CT_VALIDATION_PERMISSIVE: | |
4530 | return SSL_set_ct_validation_callback(s, ct_permissive, NULL); | |
4531 | case SSL_CT_VALIDATION_STRICT: | |
4532 | return SSL_set_ct_validation_callback(s, ct_strict, NULL); | |
4533 | } | |
4534 | } | |
4535 | ||
ed29e82a RP |
4536 | int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx) |
4537 | { | |
328f36c5 | 4538 | return CTLOG_STORE_load_default_file(ctx->ctlog_store); |
ed29e82a RP |
4539 | } |
4540 | ||
4541 | int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path) | |
4542 | { | |
4543 | return CTLOG_STORE_load_file(ctx->ctlog_store, path); | |
4544 | } | |
4545 | ||
a230b26e | 4546 | void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs) |
8359b57f RP |
4547 | { |
4548 | CTLOG_STORE_free(ctx->ctlog_store); | |
4549 | ctx->ctlog_store = logs; | |
4550 | } | |
4551 | ||
4552 | const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx) | |
4553 | { | |
4554 | return ctx->ctlog_store; | |
4555 | } | |
4556 | ||
6b1bb98f BK |
4557 | #endif /* OPENSSL_NO_CT */ |
4558 | ||
4559 | void SSL_CTX_set_early_cb(SSL_CTX *c, SSL_early_cb_fn cb, void *arg) | |
4560 | { | |
4561 | c->early_cb = cb; | |
4562 | c->early_cb_arg = arg; | |
4563 | } | |
4564 | ||
4565 | int SSL_early_isv2(SSL *s) | |
4566 | { | |
4567 | if (s->clienthello == NULL) | |
4568 | return 0; | |
4569 | return s->clienthello->isv2; | |
4570 | } | |
4571 | ||
4572 | unsigned int SSL_early_get0_legacy_version(SSL *s) | |
4573 | { | |
4574 | if (s->clienthello == NULL) | |
4575 | return 0; | |
4576 | return s->clienthello->legacy_version; | |
4577 | } | |
4578 | ||
4579 | size_t SSL_early_get0_random(SSL *s, const unsigned char **out) | |
4580 | { | |
4581 | if (s->clienthello == NULL) | |
4582 | return 0; | |
4583 | if (out != NULL) | |
4584 | *out = s->clienthello->random; | |
4585 | return SSL3_RANDOM_SIZE; | |
4586 | } | |
4587 | ||
4588 | size_t SSL_early_get0_session_id(SSL *s, const unsigned char **out) | |
4589 | { | |
4590 | if (s->clienthello == NULL) | |
4591 | return 0; | |
4592 | if (out != NULL) | |
4593 | *out = s->clienthello->session_id; | |
4594 | return s->clienthello->session_id_len; | |
4595 | } | |
4596 | ||
4597 | size_t SSL_early_get0_ciphers(SSL *s, const unsigned char **out) | |
4598 | { | |
4599 | if (s->clienthello == NULL) | |
4600 | return 0; | |
4601 | if (out != NULL) | |
4602 | *out = PACKET_data(&s->clienthello->ciphersuites); | |
4603 | return PACKET_remaining(&s->clienthello->ciphersuites); | |
4604 | } | |
4605 | ||
4606 | size_t SSL_early_get0_compression_methods(SSL *s, const unsigned char **out) | |
4607 | { | |
4608 | if (s->clienthello == NULL) | |
4609 | return 0; | |
4610 | if (out != NULL) | |
4611 | *out = s->clienthello->compressions; | |
4612 | return s->clienthello->compressions_len; | |
4613 | } | |
4614 | ||
193b5d76 BK |
4615 | int SSL_early_get1_extensions_present(SSL *s, int **out, size_t *outlen) |
4616 | { | |
4617 | RAW_EXTENSION *ext; | |
4618 | int *present; | |
4619 | size_t num = 0, i; | |
4620 | ||
4621 | if (s->clienthello == NULL || out == NULL || outlen == NULL) | |
4622 | return 0; | |
4623 | for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) { | |
4624 | ext = s->clienthello->pre_proc_exts + i; | |
4625 | if (ext->present) | |
4626 | num++; | |
4627 | } | |
4628 | present = OPENSSL_malloc(sizeof(*present) * num); | |
4629 | if (present == NULL) | |
4630 | return 0; | |
4631 | for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) { | |
4632 | ext = s->clienthello->pre_proc_exts + i; | |
4633 | if (ext->present) { | |
4634 | if (ext->received_order >= num) | |
4635 | goto err; | |
4636 | present[ext->received_order] = ext->type; | |
4637 | } | |
4638 | } | |
4639 | *out = present; | |
4640 | *outlen = num; | |
4641 | return 1; | |
4642 | err: | |
4643 | OPENSSL_free(present); | |
4644 | return 0; | |
4645 | } | |
4646 | ||
6b1bb98f BK |
4647 | int SSL_early_get0_ext(SSL *s, unsigned int type, const unsigned char **out, |
4648 | size_t *outlen) | |
4649 | { | |
4650 | size_t i; | |
4651 | RAW_EXTENSION *r; | |
4652 | ||
4653 | if (s->clienthello == NULL) | |
4654 | return 0; | |
4655 | for (i = 0; i < s->clienthello->pre_proc_exts_len; ++i) { | |
4656 | r = s->clienthello->pre_proc_exts + i; | |
4657 | if (r->present && r->type == type) { | |
4658 | if (out != NULL) | |
4659 | *out = PACKET_data(&r->data); | |
4660 | if (outlen != NULL) | |
4661 | *outlen = PACKET_remaining(&r->data); | |
4662 | return 1; | |
4663 | } | |
4664 | } | |
4665 | return 0; | |
4666 | } | |
2faa1b48 CB |
4667 | |
4668 | void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb) | |
4669 | { | |
4670 | ctx->keylog_callback = cb; | |
4671 | } | |
4672 | ||
4673 | SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx) | |
4674 | { | |
4675 | return ctx->keylog_callback; | |
4676 | } | |
4677 | ||
4678 | static int nss_keylog_int(const char *prefix, | |
4679 | SSL *ssl, | |
4680 | const uint8_t *parameter_1, | |
4681 | size_t parameter_1_len, | |
4682 | const uint8_t *parameter_2, | |
4683 | size_t parameter_2_len) | |
4684 | { | |
4685 | char *out = NULL; | |
4686 | char *cursor = NULL; | |
4687 | size_t out_len = 0; | |
4688 | size_t i; | |
4689 | size_t prefix_len; | |
4690 | ||
4691 | if (ssl->ctx->keylog_callback == NULL) return 1; | |
4692 | ||
4693 | /* | |
4694 | * Our output buffer will contain the following strings, rendered with | |
4695 | * space characters in between, terminated by a NULL character: first the | |
4696 | * prefix, then the first parameter, then the second parameter. The | |
4697 | * meaning of each parameter depends on the specific key material being | |
4698 | * logged. Note that the first and second parameters are encoded in | |
4699 | * hexadecimal, so we need a buffer that is twice their lengths. | |
4700 | */ | |
4701 | prefix_len = strlen(prefix); | |
4702 | out_len = prefix_len + (2*parameter_1_len) + (2*parameter_2_len) + 3; | |
4703 | if ((out = cursor = OPENSSL_malloc(out_len)) == NULL) { | |
4704 | SSLerr(SSL_F_NSS_KEYLOG_INT, ERR_R_MALLOC_FAILURE); | |
4705 | return 0; | |
4706 | } | |
4707 | ||
4708 | strcpy(cursor, prefix); | |
4709 | cursor += prefix_len; | |
4710 | *cursor++ = ' '; | |
4711 | ||
4712 | for (i = 0; i < parameter_1_len; i++) { | |
4713 | sprintf(cursor, "%02x", parameter_1[i]); | |
4714 | cursor += 2; | |
4715 | } | |
4716 | *cursor++ = ' '; | |
4717 | ||
4718 | for (i = 0; i < parameter_2_len; i++) { | |
4719 | sprintf(cursor, "%02x", parameter_2[i]); | |
4720 | cursor += 2; | |
4721 | } | |
4722 | *cursor = '\0'; | |
4723 | ||
4724 | ssl->ctx->keylog_callback(ssl, (const char *)out); | |
4725 | OPENSSL_free(out); | |
4726 | return 1; | |
4727 | ||
4728 | } | |
4729 | ||
4730 | int ssl_log_rsa_client_key_exchange(SSL *ssl, | |
4731 | const uint8_t *encrypted_premaster, | |
4732 | size_t encrypted_premaster_len, | |
4733 | const uint8_t *premaster, | |
4734 | size_t premaster_len) | |
4735 | { | |
4736 | if (encrypted_premaster_len < 8) { | |
4737 | SSLerr(SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR); | |
4738 | return 0; | |
4739 | } | |
4740 | ||
f0deb4d3 | 4741 | /* We only want the first 8 bytes of the encrypted premaster as a tag. */ |
2faa1b48 CB |
4742 | return nss_keylog_int("RSA", |
4743 | ssl, | |
4744 | encrypted_premaster, | |
f0deb4d3 | 4745 | 8, |
2faa1b48 CB |
4746 | premaster, |
4747 | premaster_len); | |
4748 | } | |
4749 | ||
2c7bd692 CB |
4750 | int ssl_log_secret(SSL *ssl, |
4751 | const char *label, | |
4752 | const uint8_t *secret, | |
4753 | size_t secret_len) | |
2faa1b48 | 4754 | { |
2c7bd692 | 4755 | return nss_keylog_int(label, |
2faa1b48 | 4756 | ssl, |
2c7bd692 CB |
4757 | ssl->s3->client_random, |
4758 | SSL3_RANDOM_SIZE, | |
4759 | secret, | |
4760 | secret_len); | |
2faa1b48 CB |
4761 | } |
4762 | ||
ccb8e6e0 BK |
4763 | #define SSLV2_CIPHER_LEN 3 |
4764 | ||
90134d98 BK |
4765 | int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites, int sslv2format, |
4766 | int *al) | |
ccb8e6e0 | 4767 | { |
ccb8e6e0 | 4768 | int n; |
ccb8e6e0 BK |
4769 | |
4770 | n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN; | |
4771 | ||
4772 | if (PACKET_remaining(cipher_suites) == 0) { | |
90134d98 | 4773 | SSLerr(SSL_F_SSL_CACHE_CIPHERLIST, SSL_R_NO_CIPHERS_SPECIFIED); |
ccb8e6e0 | 4774 | *al = SSL_AD_ILLEGAL_PARAMETER; |
90134d98 | 4775 | return 0; |
ccb8e6e0 BK |
4776 | } |
4777 | ||
4778 | if (PACKET_remaining(cipher_suites) % n != 0) { | |
90134d98 | 4779 | SSLerr(SSL_F_SSL_CACHE_CIPHERLIST, |
ccb8e6e0 BK |
4780 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); |
4781 | *al = SSL_AD_DECODE_ERROR; | |
90134d98 | 4782 | return 0; |
ccb8e6e0 BK |
4783 | } |
4784 | ||
4785 | OPENSSL_free(s->s3->tmp.ciphers_raw); | |
4786 | s->s3->tmp.ciphers_raw = NULL; | |
4787 | s->s3->tmp.ciphers_rawlen = 0; | |
4788 | ||
4789 | if (sslv2format) { | |
4790 | size_t numciphers = PACKET_remaining(cipher_suites) / n; | |
4791 | PACKET sslv2ciphers = *cipher_suites; | |
4792 | unsigned int leadbyte; | |
4793 | unsigned char *raw; | |
4794 | ||
4795 | /* | |
4796 | * We store the raw ciphers list in SSLv3+ format so we need to do some | |
4797 | * preprocessing to convert the list first. If there are any SSLv2 only | |
4798 | * ciphersuites with a non-zero leading byte then we are going to | |
4799 | * slightly over allocate because we won't store those. But that isn't a | |
4800 | * problem. | |
4801 | */ | |
4802 | raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN); | |
4803 | s->s3->tmp.ciphers_raw = raw; | |
4804 | if (raw == NULL) { | |
4805 | *al = SSL_AD_INTERNAL_ERROR; | |
4806 | goto err; | |
4807 | } | |
4808 | for (s->s3->tmp.ciphers_rawlen = 0; | |
4809 | PACKET_remaining(&sslv2ciphers) > 0; | |
4810 | raw += TLS_CIPHER_LEN) { | |
4811 | if (!PACKET_get_1(&sslv2ciphers, &leadbyte) | |
4812 | || (leadbyte == 0 | |
4813 | && !PACKET_copy_bytes(&sslv2ciphers, raw, | |
4814 | TLS_CIPHER_LEN)) | |
4815 | || (leadbyte != 0 | |
4816 | && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) { | |
fb34a0f4 | 4817 | *al = SSL_AD_DECODE_ERROR; |
ccb8e6e0 BK |
4818 | OPENSSL_free(s->s3->tmp.ciphers_raw); |
4819 | s->s3->tmp.ciphers_raw = NULL; | |
4820 | s->s3->tmp.ciphers_rawlen = 0; | |
4821 | goto err; | |
4822 | } | |
4823 | if (leadbyte == 0) | |
4824 | s->s3->tmp.ciphers_rawlen += TLS_CIPHER_LEN; | |
4825 | } | |
4826 | } else if (!PACKET_memdup(cipher_suites, &s->s3->tmp.ciphers_raw, | |
4827 | &s->s3->tmp.ciphers_rawlen)) { | |
4828 | *al = SSL_AD_INTERNAL_ERROR; | |
4829 | goto err; | |
4830 | } | |
90134d98 BK |
4831 | return 1; |
4832 | err: | |
4833 | return 0; | |
4834 | } | |
4835 | ||
4836 | int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len, | |
4837 | int isv2format, STACK_OF(SSL_CIPHER) **sk, | |
4838 | STACK_OF(SSL_CIPHER) **scsvs) | |
4839 | { | |
4840 | int alert; | |
4841 | PACKET pkt; | |
4842 | ||
4843 | if (!PACKET_buf_init(&pkt, bytes, len)) | |
4844 | return 0; | |
4845 | return bytes_to_cipher_list(s, &pkt, sk, scsvs, isv2format, &alert); | |
4846 | } | |
4847 | ||
4848 | int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites, | |
4849 | STACK_OF(SSL_CIPHER) **skp, | |
4850 | STACK_OF(SSL_CIPHER) **scsvs_out, | |
4851 | int sslv2format, int *al) | |
4852 | { | |
4853 | const SSL_CIPHER *c; | |
4854 | STACK_OF(SSL_CIPHER) *sk = NULL; | |
4855 | STACK_OF(SSL_CIPHER) *scsvs = NULL; | |
4856 | int n; | |
4857 | /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */ | |
4858 | unsigned char cipher[SSLV2_CIPHER_LEN]; | |
4859 | ||
4860 | n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN; | |
4861 | ||
4862 | if (PACKET_remaining(cipher_suites) == 0) { | |
4863 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_NO_CIPHERS_SPECIFIED); | |
4864 | *al = SSL_AD_ILLEGAL_PARAMETER; | |
4865 | return 0; | |
4866 | } | |
4867 | ||
4868 | if (PACKET_remaining(cipher_suites) % n != 0) { | |
4869 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, | |
4870 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); | |
4871 | *al = SSL_AD_DECODE_ERROR; | |
4872 | return 0; | |
4873 | } | |
4874 | ||
4875 | sk = sk_SSL_CIPHER_new_null(); | |
4876 | scsvs = sk_SSL_CIPHER_new_null(); | |
4877 | if (sk == NULL || scsvs == NULL) { | |
4878 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
4879 | *al = SSL_AD_INTERNAL_ERROR; | |
4880 | goto err; | |
4881 | } | |
ccb8e6e0 BK |
4882 | |
4883 | while (PACKET_copy_bytes(cipher_suites, cipher, n)) { | |
4884 | /* | |
4885 | * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the | |
4886 | * first byte set to zero, while true SSLv2 ciphers have a non-zero | |
4887 | * first byte. We don't support any true SSLv2 ciphers, so skip them. | |
4888 | */ | |
4889 | if (sslv2format && cipher[0] != '\0') | |
4890 | continue; | |
4891 | ||
ccb8e6e0 BK |
4892 | /* For SSLv2-compat, ignore leading 0-byte. */ |
4893 | c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1); | |
4894 | if (c != NULL) { | |
90134d98 BK |
4895 | if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) || |
4896 | (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) { | |
ccb8e6e0 BK |
4897 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); |
4898 | *al = SSL_AD_INTERNAL_ERROR; | |
4899 | goto err; | |
4900 | } | |
4901 | } | |
4902 | } | |
4903 | if (PACKET_remaining(cipher_suites) > 0) { | |
fb34a0f4 MC |
4904 | *al = SSL_AD_DECODE_ERROR; |
4905 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_BAD_LENGTH); | |
ccb8e6e0 BK |
4906 | goto err; |
4907 | } | |
4908 | ||
90134d98 BK |
4909 | if (skp != NULL) |
4910 | *skp = sk; | |
4911 | else | |
4912 | sk_SSL_CIPHER_free(sk); | |
4913 | if (scsvs_out != NULL) | |
4914 | *scsvs_out = scsvs; | |
4915 | else | |
4916 | sk_SSL_CIPHER_free(scsvs); | |
4917 | return 1; | |
ccb8e6e0 BK |
4918 | err: |
4919 | sk_SSL_CIPHER_free(sk); | |
90134d98 BK |
4920 | sk_SSL_CIPHER_free(scsvs); |
4921 | return 0; | |
ccb8e6e0 | 4922 | } |
3fc8d856 MC |
4923 | |
4924 | int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data) | |
4925 | { | |
4926 | ctx->max_early_data = max_early_data; | |
4927 | ||
4928 | return 1; | |
4929 | } | |
4930 | ||
46dcb945 | 4931 | uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx) |
3fc8d856 MC |
4932 | { |
4933 | return ctx->max_early_data; | |
4934 | } | |
4935 | ||
4936 | int SSL_set_max_early_data(SSL *s, uint32_t max_early_data) | |
4937 | { | |
4938 | s->max_early_data = max_early_data; | |
4939 | ||
4940 | return 1; | |
4941 | } | |
4942 | ||
a8e75d56 | 4943 | uint32_t SSL_get_max_early_data(const SSL *s) |
3fc8d856 MC |
4944 | { |
4945 | return s->max_early_data; | |
4946 | } |