]> git.ipfire.org Git - thirdparty/openssl.git/blame - ssl/ssl_lib.c
projects / thirdparty / openssl.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Fix Coverity 1498611 & 1498608: uninitialised read
[thirdparty/openssl.git] / ssl / ssl_lib.c
CommitLineData
0f113f3e 1/*
4333b89f 2 * Copyright 1995-2021 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 *
2c18d164 6 * Licensed under the Apache License 2.0 (the "License"). You may not use
846e33c7
RS		 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>
706457b7 13#include "ssl_local.h"
d5f9166b 14#include "internal/e_os.h"
ec577822 15#include <openssl/objects.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>
77359d22 23#include <openssl/trace.h>
67dc995e 24#include "internal/cryptlib.h"
cd420b0b 25#include "internal/refcount.h"
50ec7505 26#include "internal/ktls.h"
0f113f3e 27
ec27e619
MC		 28static int ssl_undefined_function_1(SSL *ssl, SSL3_RECORD *r, size_t s, int t,
29 SSL_MAC_BUF *mac, size_t macsize)
fce78bd4 30{
fce78bd4
BE		 31 return ssl_undefined_function(ssl);
32}
33
34static int ssl_undefined_function_2(SSL *ssl, SSL3_RECORD *r, unsigned char *s,
35 int t)
36{
fce78bd4
BE		 37 return ssl_undefined_function(ssl);
38}
39
40static int ssl_undefined_function_3(SSL *ssl, unsigned char *r,
41 unsigned char *s, size_t t, size_t *u)
42{
fce78bd4
BE		 43 return ssl_undefined_function(ssl);
44}
45
46static int ssl_undefined_function_4(SSL *ssl, int r)
47{
fce78bd4
BE		 48 return ssl_undefined_function(ssl);
49}
50
51static size_t ssl_undefined_function_5(SSL *ssl, const char *r, size_t s,
52 unsigned char *t)
53{
fce78bd4
BE		 54 return ssl_undefined_function(ssl);
55}
56
57static int ssl_undefined_function_6(int r)
58{
fce78bd4
BE		 59 return ssl_undefined_function(NULL);
60}
61
62static int ssl_undefined_function_7(SSL *ssl, unsigned char *r, size_t s,
63 const char *t, size_t u,
64 const unsigned char *v, size_t w, int x)
65{
fce78bd4
BE		 66 return ssl_undefined_function(ssl);
67}
68
0f113f3e 69SSL3_ENC_METHOD ssl3_undef_enc_method = {
fce78bd4
BE		 70 ssl_undefined_function_1,
71 ssl_undefined_function_2,
0f113f3e 72 ssl_undefined_function,
fce78bd4
BE		 73 ssl_undefined_function_3,
74 ssl_undefined_function_4,
75 ssl_undefined_function_5,
0f113f3e
MC		 76 NULL, /* client_finished_label */
77 0, /* client_finished_label_len */
78 NULL, /* server_finished_label */
79 0, /* server_finished_label_len */
fce78bd4
BE		 80 ssl_undefined_function_6,
81 ssl_undefined_function_7,
0f113f3e 82};
d02b48c6 83
07bbc92c
MC		 84struct ssl_async_args {
85 SSL *s;
86 void *buf;
348240c6 87 size_t num;
a230b26e 88 enum { READFUNC, WRITEFUNC, OTHERFUNC } type;
add2f5ca 89 union {
eda75751 90 int (*func_read) (SSL *, void *, size_t, size_t *);
7ee8627f 91 int (*func_write) (SSL *, const void *, size_t, size_t *);
a230b26e 92 int (*func_other) (SSL *);
add2f5ca 93 } f;
07bbc92c
MC		 94};
95
919ba009
VD		 96static const struct {
97 uint8_t mtype;
98 uint8_t ord;
a230b26e 99 int nid;
919ba009 100} dane_mds[] = {
a230b26e
EK		 101 {
102 DANETLS_MATCHING_FULL, 0, NID_undef
103 },
104 {
105 DANETLS_MATCHING_2256, 1, NID_sha256
106 },
107 {
108 DANETLS_MATCHING_2512, 2, NID_sha512
109 },
919ba009
VD		 110};
111
112static int dane_ctx_enable(struct dane_ctx_st *dctx)
113{
114 const EVP_MD **mdevp;
115 uint8_t *mdord;
116 uint8_t mdmax = DANETLS_MATCHING_LAST;
a230b26e 117 int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */
919ba009
VD		 118 size_t i;
119
5ae4ceb9
VD		 120 if (dctx->mdevp != NULL)
121 return 1;
122
919ba009
VD		 123 mdevp = OPENSSL_zalloc(n * sizeof(*mdevp));
124 mdord = OPENSSL_zalloc(n * sizeof(*mdord));
125
126 if (mdord == NULL || mdevp == NULL) {
b3bd3d5a 127 OPENSSL_free(mdord);
919ba009 128 OPENSSL_free(mdevp);
6849b73c 129 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
919ba009
VD		 130 return 0;
131 }
132
133 /* Install default entries */
134 for (i = 0; i < OSSL_NELEM(dane_mds); ++i) {
135 const EVP_MD *md;
136
137 if (dane_mds[i].nid == NID_undef ||
138 (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL)
139 continue;
140 mdevp[dane_mds[i].mtype] = md;
141 mdord[dane_mds[i].mtype] = dane_mds[i].ord;
142 }
143
144 dctx->mdevp = mdevp;
145 dctx->mdord = mdord;
146 dctx->mdmax = mdmax;
147
148 return 1;
149}
150
151static void dane_ctx_final(struct dane_ctx_st *dctx)
152{
153 OPENSSL_free(dctx->mdevp);
154 dctx->mdevp = NULL;
155
156 OPENSSL_free(dctx->mdord);
157 dctx->mdord = NULL;
158 dctx->mdmax = 0;
159}
160
161static void tlsa_free(danetls_record *t)
162{
163 if (t == NULL)
164 return;
165 OPENSSL_free(t->data);
166 EVP_PKEY_free(t->spki);
167 OPENSSL_free(t);
168}
169
b9aec69a 170static void dane_final(SSL_DANE *dane)
919ba009
VD		 171{
172 sk_danetls_record_pop_free(dane->trecs, tlsa_free);
173 dane->trecs = NULL;
174
79b2a2f2 175 OSSL_STACK_OF_X509_free(dane->certs);
919ba009
VD		 176 dane->certs = NULL;
177
178 X509_free(dane->mcert);
179 dane->mcert = NULL;
180 dane->mtlsa = NULL;
181 dane->mdpth = -1;
182 dane->pdpth = -1;
183}
184
185/*
186 * dane_copy - Copy dane configuration, sans verification state.
187 */
188static int ssl_dane_dup(SSL *to, SSL *from)
189{
190 int num;
191 int i;
192
193 if (!DANETLS_ENABLED(&from->dane))
194 return 1;
195
e431363f 196 num = sk_danetls_record_num(from->dane.trecs);
919ba009 197 dane_final(&to->dane);
5ae4ceb9 198 to->dane.flags = from->dane.flags;
9f6b22b8 199 to->dane.dctx = &to->ctx->dane;
7a908204 200 to->dane.trecs = sk_danetls_record_new_reserve(NULL, num);
9f6b22b8
VD		 201
202 if (to->dane.trecs == NULL) {
6849b73c 203 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
9f6b22b8
VD		 204 return 0;
205 }
919ba009 206
919ba009
VD		 207 for (i = 0; i < num; ++i) {
208 danetls_record *t = sk_danetls_record_value(from->dane.trecs, i);
9f6b22b8 209
919ba009
VD		 210 if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype,
211 t->data, t->dlen) <= 0)
212 return 0;
213 }
214 return 1;
215}
216
a230b26e
EK		 217static int dane_mtype_set(struct dane_ctx_st *dctx,
218 const EVP_MD *md, uint8_t mtype, uint8_t ord)
919ba009
VD		 219{
220 int i;
221
222 if (mtype == DANETLS_MATCHING_FULL && md != NULL) {
6849b73c 223 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL);
919ba009
VD		 224 return 0;
225 }
226
227 if (mtype > dctx->mdmax) {
228 const EVP_MD **mdevp;
229 uint8_t *mdord;
a230b26e 230 int n = ((int)mtype) + 1;
919ba009
VD		 231
232 mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp));
233 if (mdevp == NULL) {
6849b73c 234 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
919ba009
VD		 235 return -1;
236 }
237 dctx->mdevp = mdevp;
238
239 mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord));
240 if (mdord == NULL) {
6849b73c 241 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
919ba009
VD		 242 return -1;
243 }
244 dctx->mdord = mdord;
245
246 /* Zero-fill any gaps */
a230b26e 247 for (i = dctx->mdmax + 1; i < mtype; ++i) {
919ba009
VD		 248 mdevp[i] = NULL;
249 mdord[i] = 0;
250 }
251
252 dctx->mdmax = mtype;
253 }
254
255 dctx->mdevp[mtype] = md;
256 /* Coerce ordinal of disabled matching types to 0 */
257 dctx->mdord[mtype] = (md == NULL) ? 0 : ord;
258
259 return 1;
260}
261
b9aec69a 262static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype)
919ba009
VD		 263{
264 if (mtype > dane->dctx->mdmax)
265 return NULL;
266 return dane->dctx->mdevp[mtype];
267}
268
a230b26e
EK		 269static int dane_tlsa_add(SSL_DANE *dane,
270 uint8_t usage,
271 uint8_t selector,
6d4313f0 272 uint8_t mtype, const unsigned char *data, size_t dlen)
919ba009
VD		 273{
274 danetls_record *t;
275 const EVP_MD *md = NULL;
276 int ilen = (int)dlen;
277 int i;
9f6b22b8 278 int num;
919ba009
VD		 279
280 if (dane->trecs == NULL) {
6849b73c 281 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_NOT_ENABLED);
919ba009
VD		 282 return -1;
283 }
284
285 if (ilen < 0 || dlen != (size_t)ilen) {
6849b73c 286 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DATA_LENGTH);
919ba009
VD		 287 return 0;
288 }
289
290 if (usage > DANETLS_USAGE_LAST) {
6849b73c 291 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE);
919ba009
VD		 292 return 0;
293 }
294
295 if (selector > DANETLS_SELECTOR_LAST) {
6849b73c 296 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_SELECTOR);
919ba009
VD		 297 return 0;
298 }
299
300 if (mtype != DANETLS_MATCHING_FULL) {
301 md = tlsa_md_get(dane, mtype);
302 if (md == NULL) {
6849b73c 303 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE);
919ba009
VD		 304 return 0;
305 }
306 }
307
ed576acd 308 if (md != NULL && dlen != (size_t)EVP_MD_get_size(md)) {
6849b73c 309 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH);
919ba009
VD		 310 return 0;
311 }
312 if (!data) {
6849b73c 313 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_NULL_DATA);
919ba009
VD		 314 return 0;
315 }
316
317 if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) {
6849b73c 318 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
919ba009
VD		 319 return -1;
320 }
321
322 t->usage = usage;
323 t->selector = selector;
324 t->mtype = mtype;
348240c6 325 t->data = OPENSSL_malloc(dlen);
919ba009
VD		 326 if (t->data == NULL) {
327 tlsa_free(t);
6849b73c 328 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
919ba009
VD		 329 return -1;
330 }
348240c6
MC		 331 memcpy(t->data, data, dlen);
332 t->dlen = dlen;
919ba009
VD		 333
334 /* Validate and cache full certificate or public key */
335 if (mtype == DANETLS_MATCHING_FULL) {
336 const unsigned char *p = data;
337 X509 *cert = NULL;
338 EVP_PKEY *pkey = NULL;
339
340 switch (selector) {
341 case DANETLS_SELECTOR_CERT:
348240c6 342 if (!d2i_X509(&cert, &p, ilen) || p < data ||
919ba009
VD		 343 dlen != (size_t)(p - data)) {
344 tlsa_free(t);
6849b73c 345 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
919ba009
VD		 346 return 0;
347 }
348 if (X509_get0_pubkey(cert) == NULL) {
349 tlsa_free(t);
6849b73c 350 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
919ba009
VD		 351 return 0;
352 }
353
354 if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
355 X509_free(cert);
356 break;
357 }
358
359 /*
360 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
361 * records that contain full certificates of trust-anchors that are
362 * not present in the wire chain. For usage PKIX-TA(0), we augment
363 * the chain with untrusted Full(0) certificates from DNS, in case
364 * they are missing from the chain.
365 */
366 if ((dane->certs == NULL &&
367 (dane->certs = sk_X509_new_null()) == NULL) ||
368 !sk_X509_push(dane->certs, cert)) {
6849b73c 369 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
919ba009
VD		 370 X509_free(cert);
371 tlsa_free(t);
372 return -1;
373 }
374 break;
375
376 case DANETLS_SELECTOR_SPKI:
348240c6 377 if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data ||
919ba009
VD		 378 dlen != (size_t)(p - data)) {
379 tlsa_free(t);
6849b73c 380 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
919ba009
VD		 381 return 0;
382 }
383
384 /*
385 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
386 * records that contain full bare keys of trust-anchors that are
387 * not present in the wire chain.
388 */
389 if (usage == DANETLS_USAGE_DANE_TA)
390 t->spki = pkey;
391 else
392 EVP_PKEY_free(pkey);
393 break;
394 }
395 }
396
397 /*-
398 * Find the right insertion point for the new record.
399 *
400 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
401 * they can be processed first, as they require no chain building, and no
402 * expiration or hostname checks. Because DANE-EE(3) is numerically
403 * largest, this is accomplished via descending sort by "usage".
404 *
405 * We also sort in descending order by matching ordinal to simplify
406 * the implementation of digest agility in the verification code.
407 *
408 * The choice of order for the selector is not significant, so we
409 * use the same descending order for consistency.
410 */
9f6b22b8
VD		 411 num = sk_danetls_record_num(dane->trecs);
412 for (i = 0; i < num; ++i) {
919ba009 413 danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
9f6b22b8 414
919ba009
VD		 415 if (rec->usage > usage)
416 continue;
417 if (rec->usage < usage)
418 break;
419 if (rec->selector > selector)
420 continue;
421 if (rec->selector < selector)
422 break;
423 if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
424 continue;
425 break;
426 }
427
428 if (!sk_danetls_record_insert(dane->trecs, t, i)) {
429 tlsa_free(t);
6849b73c 430 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
919ba009
VD		 431 return -1;
432 }
433 dane->umask |= DANETLS_USAGE_BIT(usage);
434
435 return 1;
436}
437
c8feba72
BK		 438/*
439 * Return 0 if there is only one version configured and it was disabled
440 * at configure time. Return 1 otherwise.
441 */
442static int ssl_check_allowed_versions(int min_version, int max_version)
443{
444 int minisdtls = 0, maxisdtls = 0;
445
446 /* Figure out if we're doing DTLS versions or TLS versions */
447 if (min_version == DTLS1_BAD_VER
448 || min_version >> 8 == DTLS1_VERSION_MAJOR)
449 minisdtls = 1;
450 if (max_version == DTLS1_BAD_VER
451 || max_version >> 8 == DTLS1_VERSION_MAJOR)
452 maxisdtls = 1;
453 /* A wildcard version of 0 could be DTLS or TLS. */
454 if ((minisdtls && !maxisdtls && max_version != 0)
455 || (maxisdtls && !minisdtls && min_version != 0)) {
456 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
457 return 0;
458 }
459
460 if (minisdtls || maxisdtls) {
461 /* Do DTLS version checks. */
462 if (min_version == 0)
463 /* Ignore DTLS1_BAD_VER */
464 min_version = DTLS1_VERSION;
465 if (max_version == 0)
466 max_version = DTLS1_2_VERSION;
467#ifdef OPENSSL_NO_DTLS1_2
468 if (max_version == DTLS1_2_VERSION)
469 max_version = DTLS1_VERSION;
470#endif
471#ifdef OPENSSL_NO_DTLS1
472 if (min_version == DTLS1_VERSION)
473 min_version = DTLS1_2_VERSION;
474#endif
79b4444d
DMSP		 475 /* Done massaging versions; do the check. */
476 if (0
c8feba72
BK		 477#ifdef OPENSSL_NO_DTLS1
478 || (DTLS_VERSION_GE(min_version, DTLS1_VERSION)
479 && DTLS_VERSION_GE(DTLS1_VERSION, max_version))
480#endif
481#ifdef OPENSSL_NO_DTLS1_2
482 || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION)
483 && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version))
484#endif
485 )
486 return 0;
487 } else {
488 /* Regular TLS version checks. */
79b4444d
DMSP		 489 if (min_version == 0)
490 min_version = SSL3_VERSION;
491 if (max_version == 0)
492 max_version = TLS1_3_VERSION;
c8feba72 493#ifdef OPENSSL_NO_TLS1_3
79b4444d
DMSP		 494 if (max_version == TLS1_3_VERSION)
495 max_version = TLS1_2_VERSION;
c8feba72
BK		 496#endif
497#ifdef OPENSSL_NO_TLS1_2
79b4444d
DMSP		 498 if (max_version == TLS1_2_VERSION)
499 max_version = TLS1_1_VERSION;
c8feba72
BK		 500#endif
501#ifdef OPENSSL_NO_TLS1_1
79b4444d
DMSP		 502 if (max_version == TLS1_1_VERSION)
503 max_version = TLS1_VERSION;
c8feba72
BK		 504#endif
505#ifdef OPENSSL_NO_TLS1
79b4444d
DMSP		 506 if (max_version == TLS1_VERSION)
507 max_version = SSL3_VERSION;
c8feba72
BK		 508#endif
509#ifdef OPENSSL_NO_SSL3
79b4444d
DMSP		 510 if (min_version == SSL3_VERSION)
511 min_version = TLS1_VERSION;
c8feba72
BK		 512#endif
513#ifdef OPENSSL_NO_TLS1
79b4444d
DMSP		 514 if (min_version == TLS1_VERSION)
515 min_version = TLS1_1_VERSION;
c8feba72
BK		 516#endif
517#ifdef OPENSSL_NO_TLS1_1
79b4444d
DMSP		 518 if (min_version == TLS1_1_VERSION)
519 min_version = TLS1_2_VERSION;
c8feba72
BK		 520#endif
521#ifdef OPENSSL_NO_TLS1_2
79b4444d
DMSP		 522 if (min_version == TLS1_2_VERSION)
523 min_version = TLS1_3_VERSION;
c8feba72 524#endif
79b4444d
DMSP		 525 /* Done massaging versions; do the check. */
526 if (0
c8feba72
BK		 527#ifdef OPENSSL_NO_SSL3
528 || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version)
529#endif
530#ifdef OPENSSL_NO_TLS1
531 || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version)
532#endif
533#ifdef OPENSSL_NO_TLS1_1
534 || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version)
535#endif
536#ifdef OPENSSL_NO_TLS1_2
537 || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version)
538#endif
539#ifdef OPENSSL_NO_TLS1_3
540 || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version)
541#endif
542 )
543 return 0;
544 }
545 return 1;
546}
547
08073700
RB		 548#if defined(__TANDEM) && defined(OPENSSL_VPROC)
549/*
550 * Define a VPROC function for HP NonStop build ssl library.
551 * This is used by platform version identification tools.
552 * Do not inline this procedure or make it static.
553 */
554# define OPENSSL_VPROC_STRING_(x) x##_SSL
555# define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
556# define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
557void OPENSSL_VPROC_FUNC(void) {}
558#endif
559
560
d31fb0b5
RS		 561static void clear_ciphers(SSL *s)
562{
563 /* clear the current cipher */
564 ssl_clear_cipher_ctx(s);
565 ssl_clear_hash_ctx(&s->read_hash);
566 ssl_clear_hash_ctx(&s->write_hash);
567}
568
4f43d0e7 569int SSL_clear(SSL *s)
0f113f3e 570{
0f113f3e 571 if (s->method == NULL) {
6849b73c 572 ERR_raise(ERR_LIB_SSL, SSL_R_NO_METHOD_SPECIFIED);
a89325e4 573 return 0;
0f113f3e 574 }
d02b48c6 575
0f113f3e
MC		 576 if (ssl_clear_bad_session(s)) {
577 SSL_SESSION_free(s->session);
578 s->session = NULL;
579 }
9368f865
MC		 580 SSL_SESSION_free(s->psksession);
581 s->psksession = NULL;
add8d0e9
MC		 582 OPENSSL_free(s->psksession_id);
583 s->psksession_id = NULL;
584 s->psksession_id_len = 0;
808d1601 585 s->hello_retry_request = 0;
36ff232c 586 s->sent_tickets = 0;
d62bfb39 587
0f113f3e
MC		 588 s->error = 0;
589 s->hit = 0;
590 s->shutdown = 0;
d02b48c6 591
0f113f3e 592 if (s->renegotiate) {
6849b73c 593 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
0f113f3e
MC		 594 return 0;
595 }
d02b48c6 596
fe3a3291 597 ossl_statem_clear(s);
413c4f45 598
0f113f3e
MC		 599 s->version = s->method->version;
600 s->client_version = s->version;
601 s->rwstate = SSL_NOTHING;
d02b48c6 602
25aaa98a
RS		 603 BUF_MEM_free(s->init_buf);
604 s->init_buf = NULL;
d31fb0b5 605 clear_ciphers(s);
0f113f3e 606 s->first_packet = 0;
d02b48c6 607
44c04a2e
MC		 608 s->key_update = SSL_KEY_UPDATE_NONE;
609
88834998
TS		 610 EVP_MD_CTX_free(s->pha_dgst);
611 s->pha_dgst = NULL;
612
919ba009
VD		 613 /* Reset DANE verification result state */
614 s->dane.mdpth = -1;
615 s->dane.pdpth = -1;
616 X509_free(s->dane.mcert);
617 s->dane.mcert = NULL;
618 s->dane.mtlsa = NULL;
619
620 /* Clear the verification result peername */
621 X509_VERIFY_PARAM_move_peername(s->param, NULL);
622
29948ac8
BK		 623 /* Clear any shared connection state */
624 OPENSSL_free(s->shared_sigalgs);
625 s->shared_sigalgs = NULL;
626 s->shared_sigalgslen = 0;
627
0f113f3e
MC		 628 /*
629 * Check to see if we were changed into a different method, if so, revert
24252537 630 * back.
0f113f3e 631 */
24252537 632 if (s->method != s->ctx->method) {
0f113f3e
MC		 633 s->method->ssl_free(s);
634 s->method = s->ctx->method;
635 if (!s->method->ssl_new(s))
a89325e4 636 return 0;
b77f3ed1
MC		 637 } else {
638 if (!s->method->ssl_clear(s))
639 return 0;
640 }
33d23b87 641
af9752e5 642 RECORD_LAYER_clear(&s->rlayer);
33d23b87 643
a89325e4 644 return 1;
0f113f3e 645}
d02b48c6 646
dd0164e7 647#ifndef OPENSSL_NO_DEPRECATED_3_0
4f43d0e7 648/** Used to change an SSL_CTXs default SSL method type */
0f113f3e
MC		 649int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
650{
651 STACK_OF(SSL_CIPHER) *sk;
652
653 ctx->method = meth;
654
5d120511 655 if (!SSL_CTX_set_ciphersuites(ctx, OSSL_default_ciphersuites())) {
6849b73c 656 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
2340ed27
BK		 657 return 0;
658 }
a68eee67 659 sk = ssl_create_cipher_list(ctx,
f865b081
MC		 660 ctx->tls13_ciphersuites,
661 &(ctx->cipher_list),
0f113f3e 662 &(ctx->cipher_list_by_id),
5d120511 663 OSSL_default_cipher_list(), ctx->cert);
0f113f3e 664 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
6849b73c 665 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
26a7d938 666 return 0;
0f113f3e 667 }
208fb891 668 return 1;
0f113f3e 669}
dd0164e7 670#endif
d02b48c6 671
4f43d0e7 672SSL *SSL_new(SSL_CTX *ctx)
0f113f3e
MC		 673{
674 SSL *s;
675
676 if (ctx == NULL) {
6849b73c 677 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_CTX);
26a7d938 678 return NULL;
0f113f3e
MC		 679 }
680 if (ctx->method == NULL) {
6849b73c 681 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
26a7d938 682 return NULL;
0f113f3e
MC		 683 }
684
b51bce94 685 s = OPENSSL_zalloc(sizeof(*s));
0f113f3e
MC		 686 if (s == NULL)
687 goto err;
0f113f3e 688
e6b10c34 689 s->references = 1;
16203f7b 690 s->lock = CRYPTO_THREAD_lock_new();
e6b10c34
BE		 691 if (s->lock == NULL) {
692 OPENSSL_free(s);
693 s = NULL;
ae3947de 694 goto err;
e6b10c34 695 }
ae3947de 696
c036e210 697 RECORD_LAYER_init(&s->rlayer, s);
28d59af8 698
0f113f3e 699 s->options = ctx->options;
5ae4ceb9 700 s->dane.flags = ctx->dane.flags;
7946ab33
KR		 701 s->min_proto_version = ctx->min_proto_version;
702 s->max_proto_version = ctx->max_proto_version;
0f113f3e
MC		 703 s->mode = ctx->mode;
704 s->max_cert_list = ctx->max_cert_list;
3fc8d856 705 s->max_early_data = ctx->max_early_data;
4e8548e8 706 s->recv_max_early_data = ctx->recv_max_early_data;
9d0a8bb7 707 s->num_tickets = ctx->num_tickets;
e97be718 708 s->pha_enabled = ctx->pha_enabled;
0f113f3e 709
f865b081
MC		 710 /* Shallow copy of the ciphersuites stack */
711 s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
712 if (s->tls13_ciphersuites == NULL)
713 goto err;
714
2c382349
KR		 715 /*
716 * Earlier library versions used to copy the pointer to the CERT, not
717 * its contents; only when setting new parameters for the per-SSL
718 * copy, ssl_cert_new would be called (and the direct reference to
719 * the per-SSL_CTX settings would be lost, but those still were
720 * indirectly accessed for various purposes, and for that reason they
721 * used to be known as s->ctx->default_cert). Now we don't look at the
722 * SSL_CTX's CERT after having duplicated it once.
723 */
724 s->cert = ssl_cert_dup(ctx->cert);
725 if (s->cert == NULL)
726 goto err;
0f113f3e 727
52e1d7b1 728 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
0f113f3e
MC		 729 s->msg_callback = ctx->msg_callback;
730 s->msg_callback_arg = ctx->msg_callback_arg;
731 s->verify_mode = ctx->verify_mode;
732 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
c649d10d
TS		 733 s->record_padding_cb = ctx->record_padding_cb;
734 s->record_padding_arg = ctx->record_padding_arg;
735 s->block_padding = ctx->block_padding;
0f113f3e 736 s->sid_ctx_length = ctx->sid_ctx_length;
cbe29648 737 if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
380a522f 738 goto err;
0f113f3e
MC		 739 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
740 s->verify_callback = ctx->default_verify_callback;
741 s->generate_session_id = ctx->generate_session_id;
742
743 s->param = X509_VERIFY_PARAM_new();
a71edf3b 744 if (s->param == NULL)
0f113f3e
MC		 745 goto err;
746 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
0f113f3e 747 s->quiet_shutdown = ctx->quiet_shutdown;
cf72c757
F		 748
749 s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
0f113f3e 750 s->max_send_fragment = ctx->max_send_fragment;
d102d9df
MC		 751 s->split_send_fragment = ctx->split_send_fragment;
752 s->max_pipelines = ctx->max_pipelines;
94777c9c
MC		 753 if (s->max_pipelines > 1)
754 RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
dad78fb1
MC		 755 if (ctx->default_read_buf_len > 0)
756 SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len);
bf21446a 757
16203f7b 758 SSL_CTX_up_ref(ctx);
0f113f3e 759 s->ctx = ctx;
aff8c126
RS		 760 s->ext.debug_cb = 0;
761 s->ext.debug_arg = NULL;
762 s->ext.ticket_expected = 0;
763 s->ext.status_type = ctx->ext.status_type;
764 s->ext.status_expected = 0;
765 s->ext.ocsp.ids = NULL;
766 s->ext.ocsp.exts = NULL;
767 s->ext.ocsp.resp = NULL;
768 s->ext.ocsp.resp_len = 0;
16203f7b 769 SSL_CTX_up_ref(ctx);
222da979 770 s->session_ctx = ctx;
aff8c126
RS		 771 if (ctx->ext.ecpointformats) {
772 s->ext.ecpointformats =
773 OPENSSL_memdup(ctx->ext.ecpointformats,
774 ctx->ext.ecpointformats_len);
39a14059
MC		 775 if (!s->ext.ecpointformats) {
776 s->ext.ecpointformats_len = 0;
0f113f3e 777 goto err;
39a14059 778 }
aff8c126
RS		 779 s->ext.ecpointformats_len =
780 ctx->ext.ecpointformats_len;
781 }
782 if (ctx->ext.supportedgroups) {
783 s->ext.supportedgroups =
784 OPENSSL_memdup(ctx->ext.supportedgroups,
9e84a42d 785 ctx->ext.supportedgroups_len
b92d7b62 786 * sizeof(*ctx->ext.supportedgroups));
39a14059
MC		 787 if (!s->ext.supportedgroups) {
788 s->ext.supportedgroups_len = 0;
0f113f3e 789 goto err;
39a14059 790 }
aff8c126 791 s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
0f113f3e 792 }
dbc6268f 793
a230b26e 794#ifndef OPENSSL_NO_NEXTPROTONEG
aff8c126 795 s->ext.npn = NULL;
a230b26e 796#endif
6f017a8f 797
aff8c126
RS		 798 if (s->ctx->ext.alpn) {
799 s->ext.alpn = OPENSSL_malloc(s->ctx->ext.alpn_len);
39a14059
MC		 800 if (s->ext.alpn == NULL) {
801 s->ext.alpn_len = 0;
0f113f3e 802 goto err;
39a14059 803 }
aff8c126
RS		 804 memcpy(s->ext.alpn, s->ctx->ext.alpn, s->ctx->ext.alpn_len);
805 s->ext.alpn_len = s->ctx->ext.alpn_len;
0f113f3e 806 }
d02b48c6 807
696178ed 808 s->verified_chain = NULL;
0f113f3e 809 s->verify_result = X509_V_OK;
d02b48c6 810
a974e64a
MC		 811 s->default_passwd_callback = ctx->default_passwd_callback;
812 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
813
0f113f3e 814 s->method = ctx->method;
d02b48c6 815
44c04a2e
MC		 816 s->key_update = SSL_KEY_UPDATE_NONE;
817
c9598459
MC		 818 s->allow_early_data_cb = ctx->allow_early_data_cb;
819 s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
820
0f113f3e
MC		 821 if (!s->method->ssl_new(s))
822 goto err;
d02b48c6 823
0f113f3e 824 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
bf21446a 825
61986d32 826 if (!SSL_clear(s))
69f68237 827 goto err;
58964a49 828
25a807bc
F		 829 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data))
830 goto err;
58964a49 831
ddac1974 832#ifndef OPENSSL_NO_PSK
0f113f3e
MC		 833 s->psk_client_callback = ctx->psk_client_callback;
834 s->psk_server_callback = ctx->psk_server_callback;
ddac1974 835#endif
f46184bd
MC		 836 s->psk_find_session_cb = ctx->psk_find_session_cb;
837 s->psk_use_session_cb = ctx->psk_use_session_cb;
ddac1974 838
9f5a87fd
PY		 839 s->async_cb = ctx->async_cb;
840 s->async_cb_arg = ctx->async_cb_arg;
841
07bbc92c
MC		 842 s->job = NULL;
843
ed29e82a
RP		 844#ifndef OPENSSL_NO_CT
845 if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback,
a230b26e 846 ctx->ct_validation_callback_arg))
ed29e82a
RP		 847 goto err;
848#endif
849
16203f7b 850 return s;
0f113f3e 851 err:
62adbcee 852 SSL_free(s);
6849b73c 853 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
16203f7b 854 return NULL;
0f113f3e 855}
d02b48c6 856
e417070c
RS		 857int SSL_is_dtls(const SSL *s)
858{
859 return SSL_IS_DTLS(s) ? 1 : 0;
860}
861
c5ebfcab 862int SSL_up_ref(SSL *s)
a18a31e4 863{
16203f7b 864 int i;
c5ebfcab 865
2f545ae4 866 if (CRYPTO_UP_REF(&s->references, &i, s->lock) <= 0)
c5ebfcab
F		 867 return 0;
868
869 REF_PRINT_COUNT("SSL", s);
870 REF_ASSERT_ISNT(i < 2);
871 return ((i > 1) ? 1 : 0);
a18a31e4
MC		 872}
873
0f113f3e
MC		 874int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
875 unsigned int sid_ctx_len)
876{
fe9edc9d 877 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
6849b73c 878 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
0f113f3e
MC		 879 return 0;
880 }
881 ctx->sid_ctx_length = sid_ctx_len;
882 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
4eb77b26
BM		 883
884 return 1;
0f113f3e 885}
4eb77b26 886
0f113f3e
MC		 887int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
888 unsigned int sid_ctx_len)
889{
890 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
6849b73c 891 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
0f113f3e
MC		 892 return 0;
893 }
894 ssl->sid_ctx_length = sid_ctx_len;
895 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
b4cadc6e
BL		 896
897 return 1;
0f113f3e 898}
b4cadc6e 899
dc644fe2 900int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
0f113f3e 901{
cd3f8c1b
RS		 902 if (!CRYPTO_THREAD_write_lock(ctx->lock))
903 return 0;
0f113f3e 904 ctx->generate_session_id = cb;
16203f7b 905 CRYPTO_THREAD_unlock(ctx->lock);
0f113f3e
MC		 906 return 1;
907}
dc644fe2
GT		 908
909int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
0f113f3e 910{
cd3f8c1b
RS		 911 if (!CRYPTO_THREAD_write_lock(ssl->lock))
912 return 0;
0f113f3e 913 ssl->generate_session_id = cb;
16203f7b 914 CRYPTO_THREAD_unlock(ssl->lock);
0f113f3e
MC		 915 return 1;
916}
dc644fe2 917
f85c9904 918int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
0f113f3e
MC		 919 unsigned int id_len)
920{
921 /*
922 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
69687aa8 923 * we can "construct" a session to give us the desired check - i.e. to
0f113f3e
MC		 924 * find if there's a session in the hash table that would conflict with
925 * any new session built out of this id/id_len and the ssl_version in use
926 * by this SSL.
927 */
928 SSL_SESSION r, *p;
929
cbe29648 930 if (id_len > sizeof(r.session_id))
0f113f3e
MC		 931 return 0;
932
933 r.ssl_version = ssl->version;
934 r.session_id_length = id_len;
935 memcpy(r.session_id, id, id_len);
936
cd3f8c1b
RS		 937 if (!CRYPTO_THREAD_read_lock(ssl->session_ctx->lock))
938 return 0;
e2bb9b9b
TS		 939 p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r);
940 CRYPTO_THREAD_unlock(ssl->session_ctx->lock);
0f113f3e
MC		 941 return (p != NULL);
942}
dc644fe2 943
bb7cd4e3 944int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
0f113f3e
MC		 945{
946 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
947}
bb7cd4e3
DSH		 948
949int SSL_set_purpose(SSL *s, int purpose)
0f113f3e
MC		 950{
951 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
952}
926a56bf 953
bb7cd4e3 954int SSL_CTX_set_trust(SSL_CTX *s, int trust)
0f113f3e
MC		 955{
956 return X509_VERIFY_PARAM_set_trust(s->param, trust);
957}
bb7cd4e3
DSH		 958
959int SSL_set_trust(SSL *s, int trust)
0f113f3e
MC		 960{
961 return X509_VERIFY_PARAM_set_trust(s->param, trust);
962}
bb7cd4e3 963
919ba009
VD		 964int SSL_set1_host(SSL *s, const char *hostname)
965{
c832840e
DW		 966 /* If a hostname is provided and parses as an IP address,
967 * treat it as such. */
968 if (hostname && X509_VERIFY_PARAM_set1_ip_asc(s->param, hostname) == 1)
969 return 1;
970
919ba009
VD		 971 return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0);
972}
973
974int SSL_add1_host(SSL *s, const char *hostname)
975{
c832840e
DW		 976 /* If a hostname is provided and parses as an IP address,
977 * treat it as such. */
892a9e4c
DW		 978 if (hostname)
979 {
980 ASN1_OCTET_STRING *ip;
981 char *old_ip;
982
983 ip = a2i_IPADDRESS(hostname);
984 if (ip) {
985 /* We didn't want it; only to check if it *is* an IP address */
986 ASN1_OCTET_STRING_free(ip);
987
988 old_ip = X509_VERIFY_PARAM_get1_ip_asc(s->param);
989 if (old_ip)
990 {
f2bfc53b 991 OPENSSL_free(old_ip);
892a9e4c
DW		 992 /* There can be only one IP address */
993 return 0;
994 }
995
996 return X509_VERIFY_PARAM_set1_ip_asc(s->param, hostname);
997 }
998 }
c832840e 999
919ba009
VD		 1000 return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0);
1001}
1002
1003void SSL_set_hostflags(SSL *s, unsigned int flags)
1004{
1005 X509_VERIFY_PARAM_set_hostflags(s->param, flags);
1006}
1007
4588cb44 1008const char *SSL_get0_peername(SSL *s)
919ba009
VD		 1009{
1010 return X509_VERIFY_PARAM_get0_peername(s->param);
1011}
1012
1013int SSL_CTX_dane_enable(SSL_CTX *ctx)
1014{
1015 return dane_ctx_enable(&ctx->dane);
1016}
1017
5ae4ceb9
VD		 1018unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
1019{
1020 unsigned long orig = ctx->dane.flags;
1021
1022 ctx->dane.flags |= flags;
1023 return orig;
1024}
1025
1026unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
1027{
1028 unsigned long orig = ctx->dane.flags;
1029
1030 ctx->dane.flags &= ~flags;
1031 return orig;
1032}
1033
919ba009
VD		 1034int SSL_dane_enable(SSL *s, const char *basedomain)
1035{
b9aec69a 1036 SSL_DANE *dane = &s->dane;
919ba009
VD		 1037
1038 if (s->ctx->dane.mdmax == 0) {
6849b73c 1039 ERR_raise(ERR_LIB_SSL, SSL_R_CONTEXT_NOT_DANE_ENABLED);
919ba009
VD		 1040 return 0;
1041 }
1042 if (dane->trecs != NULL) {
6849b73c 1043 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_ALREADY_ENABLED);
919ba009
VD		 1044 return 0;
1045 }
1046
8d887efa
VD		 1047 /*
1048 * Default SNI name. This rejects empty names, while set1_host below
1049 * accepts them and disables host name checks. To avoid side-effects with
1050 * invalid input, set the SNI name first.
1051 */
aff8c126 1052 if (s->ext.hostname == NULL) {
dccd20d1 1053 if (!SSL_set_tlsext_host_name(s, basedomain)) {
6849b73c 1054 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
dccd20d1 1055 return -1;
8d887efa
VD		 1056 }
1057 }
1058
919ba009
VD		 1059 /* Primary RFC6125 reference identifier */
1060 if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) {
6849b73c 1061 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
919ba009
VD		 1062 return -1;
1063 }
1064
919ba009
VD		 1065 dane->mdpth = -1;
1066 dane->pdpth = -1;
1067 dane->dctx = &s->ctx->dane;
1068 dane->trecs = sk_danetls_record_new_null();
1069
1070 if (dane->trecs == NULL) {
6849b73c 1071 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
919ba009
VD		 1072 return -1;
1073 }
1074 return 1;
1075}
1076
5ae4ceb9
VD		 1077unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
1078{
1079 unsigned long orig = ssl->dane.flags;
1080
1081 ssl->dane.flags |= flags;
1082 return orig;
1083}
1084
1085unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
1086{
1087 unsigned long orig = ssl->dane.flags;
1088
1089 ssl->dane.flags &= ~flags;
1090 return orig;
1091}
1092
919ba009
VD		 1093int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
1094{
b9aec69a 1095 SSL_DANE *dane = &s->dane;
919ba009 1096
c0a445a9 1097 if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK)
919ba009
VD		 1098 return -1;
1099 if (dane->mtlsa) {
1100 if (mcert)
1101 *mcert = dane->mcert;
1102 if (mspki)
1103 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
1104 }
1105 return dane->mdpth;
1106}
1107
1108int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
6d4313f0 1109 uint8_t *mtype, const unsigned char **data, size_t *dlen)
919ba009 1110{
b9aec69a 1111 SSL_DANE *dane = &s->dane;
919ba009 1112
c0a445a9 1113 if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK)
919ba009
VD		 1114 return -1;
1115 if (dane->mtlsa) {
1116 if (usage)
1117 *usage = dane->mtlsa->usage;
1118 if (selector)
1119 *selector = dane->mtlsa->selector;
1120 if (mtype)
1121 *mtype = dane->mtlsa->mtype;
1122 if (data)
1123 *data = dane->mtlsa->data;
1124 if (dlen)
1125 *dlen = dane->mtlsa->dlen;
1126 }
1127 return dane->mdpth;
1128}
1129
b9aec69a 1130SSL_DANE *SSL_get0_dane(SSL *s)
919ba009
VD		 1131{
1132 return &s->dane;
1133}
1134
1135int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
6d4313f0 1136 uint8_t mtype, const unsigned char *data, size_t dlen)
919ba009
VD		 1137{
1138 return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen);
1139}
1140
a230b26e
EK		 1141int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
1142 uint8_t ord)
919ba009
VD		 1143{
1144 return dane_mtype_set(&ctx->dane, md, mtype, ord);
1145}
1146
ccf11751 1147int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
0f113f3e
MC		 1148{
1149 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
1150}
ccf11751
DSH		 1151
1152int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
0f113f3e
MC		 1153{
1154 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
1155}
ccf11751 1156
7af31968 1157X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
0f113f3e
MC		 1158{
1159 return ctx->param;
1160}
7af31968
DSH		 1161
1162X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
0f113f3e
MC		 1163{
1164 return ssl->param;
1165}
7af31968 1166
a5ee80b9 1167void SSL_certs_clear(SSL *s)
0f113f3e
MC		 1168{
1169 ssl_cert_clear_certs(s->cert);
1170}
a5ee80b9 1171
4f43d0e7 1172void SSL_free(SSL *s)
0f113f3e
MC		 1173{
1174 int i;
58964a49 1175
e6e9170d
RS		 1176 if (s == NULL)
1177 return;
2f545ae4 1178 CRYPTO_DOWN_REF(&s->references, &i, s->lock);
f3f1cf84 1179 REF_PRINT_COUNT("SSL", s);
0f113f3e
MC		 1180 if (i > 0)
1181 return;
f3f1cf84 1182 REF_ASSERT_ISNT(i < 0);
d02b48c6 1183
222561fe 1184 X509_VERIFY_PARAM_free(s->param);
919ba009 1185 dane_final(&s->dane);
0f113f3e
MC		 1186 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1187
50ec7505
BP		 1188 RECORD_LAYER_release(&s->rlayer);
1189
b77f3ed1 1190 /* Ignore return value */
2e7dc7cd
MC		 1191 ssl_free_wbio_buffer(s);
1192
65e2d672 1193 BIO_free_all(s->wbio);
50ec7505 1194 s->wbio = NULL;
325cfa85 1195 BIO_free_all(s->rbio);
50ec7505 1196 s->rbio = NULL;
0f113f3e 1197
25aaa98a 1198 BUF_MEM_free(s->init_buf);
0f113f3e
MC		 1199
1200 /* add extra stuff */
25aaa98a
RS		 1201 sk_SSL_CIPHER_free(s->cipher_list);
1202 sk_SSL_CIPHER_free(s->cipher_list_by_id);
f865b081 1203 sk_SSL_CIPHER_free(s->tls13_ciphersuites);
eee2a6a7 1204 sk_SSL_CIPHER_free(s->peer_ciphers);
0f113f3e
MC		 1205
1206 /* Make the next call work :-) */
1207 if (s->session != NULL) {
1208 ssl_clear_bad_session(s);
1209 SSL_SESSION_free(s->session);
1210 }
9368f865 1211 SSL_SESSION_free(s->psksession);
add8d0e9 1212 OPENSSL_free(s->psksession_id);
0f113f3e 1213
d31fb0b5 1214 clear_ciphers(s);
d02b48c6 1215
e0e920b1 1216 ssl_cert_free(s->cert);
29948ac8 1217 OPENSSL_free(s->shared_sigalgs);
0f113f3e 1218 /* Free up if allocated */
d02b48c6 1219
aff8c126 1220 OPENSSL_free(s->ext.hostname);
222da979 1221 SSL_CTX_free(s->session_ctx);
aff8c126 1222 OPENSSL_free(s->ext.ecpointformats);
cd0fb43c 1223 OPENSSL_free(s->ext.peer_ecpointformats);
aff8c126 1224 OPENSSL_free(s->ext.supportedgroups);
45436e61 1225 OPENSSL_free(s->ext.peer_supportedgroups);
aff8c126 1226 sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
3e41ac35 1227#ifndef OPENSSL_NO_OCSP
aff8c126 1228 sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
3e41ac35 1229#endif
ed29e82a
RP		 1230#ifndef OPENSSL_NO_CT
1231 SCT_LIST_free(s->scts);
aff8c126 1232 OPENSSL_free(s->ext.scts);
ed29e82a 1233#endif
aff8c126
RS		 1234 OPENSSL_free(s->ext.ocsp.resp);
1235 OPENSSL_free(s->ext.alpn);
cfef5027 1236 OPENSSL_free(s->ext.tls13_cookie);
94941cad
MK		 1237 if (s->clienthello != NULL)
1238 OPENSSL_free(s->clienthello->pre_proc_exts);
6b1bb98f 1239 OPENSSL_free(s->clienthello);
9d75dce3
TS		 1240 OPENSSL_free(s->pha_context);
1241 EVP_MD_CTX_free(s->pha_dgst);
0f113f3e 1242
fa7c2637 1243 sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
98732979 1244 sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
0f113f3e 1245
79b2a2f2 1246 OSSL_STACK_OF_X509_free(s->verified_chain);
696178ed 1247
0f113f3e
MC		 1248 if (s->method != NULL)
1249 s->method->ssl_free(s);
1250
e0e920b1 1251 SSL_CTX_free(s->ctx);
7c3908dd 1252
ff75a257
MC		 1253 ASYNC_WAIT_CTX_free(s->waitctx);
1254
e481f9b9 1255#if !defined(OPENSSL_NO_NEXTPROTONEG)
aff8c126 1256 OPENSSL_free(s->ext.npn);
ee2ffc27
BL		 1257#endif
1258
e783bae2 1259#ifndef OPENSSL_NO_SRTP
25aaa98a 1260 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
0f113f3e
MC		 1261#endif
1262
16203f7b
AG		 1263 CRYPTO_THREAD_lock_free(s->lock);
1264
0f113f3e
MC		 1265 OPENSSL_free(s);
1266}
1267
65e2d672 1268void SSL_set0_rbio(SSL *s, BIO *rbio)
3ffbe008 1269{
65e2d672 1270 BIO_free_all(s->rbio);
3ffbe008
MC		 1271 s->rbio = rbio;
1272}
1273
65e2d672 1274void SSL_set0_wbio(SSL *s, BIO *wbio)
0f113f3e
MC		 1275{
1276 /*
1277 * If the output buffering BIO is still in place, remove it
1278 */
2e7dc7cd
MC		 1279 if (s->bbio != NULL)
1280 s->wbio = BIO_pop(s->wbio);
1281
65e2d672 1282 BIO_free_all(s->wbio);
0f113f3e 1283 s->wbio = wbio;
2e7dc7cd
MC		 1284
1285 /* Re-attach |bbio| to the new |wbio|. */
1286 if (s->bbio != NULL)
1287 s->wbio = BIO_push(s->bbio, s->wbio);
0f113f3e 1288}
d02b48c6 1289
3ffbe008
MC		 1290void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1291{
65e2d672
MC		 1292 /*
1293 * For historical reasons, this function has many different cases in
1294 * ownership handling.
1295 */
1296
1297 /* If nothing has changed, do nothing */
1298 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1299 return;
1300
1301 /*
1302 * If the two arguments are equal then one fewer reference is granted by the
1303 * caller than we want to take
1304 */
1305 if (rbio != NULL && rbio == wbio)
1306 BIO_up_ref(rbio);
1307
1308 /*
1309 * If only the wbio is changed only adopt one reference.
1310 */
1311 if (rbio == SSL_get_rbio(s)) {
1312 SSL_set0_wbio(s, wbio);
1313 return;
1314 }
1315 /*
1316 * There is an asymmetry here for historical reasons. If only the rbio is
1317 * changed AND the rbio and wbio were originally different, then we only
1318 * adopt one reference.
1319 */
1320 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1321 SSL_set0_rbio(s, rbio);
1322 return;
1323 }
1324
1325 /* Otherwise, adopt both references. */
1326 SSL_set0_rbio(s, rbio);
1327 SSL_set0_wbio(s, wbio);
3ffbe008
MC		 1328}
1329
0821bcd4 1330BIO *SSL_get_rbio(const SSL *s)
0f113f3e 1331{
2e7dc7cd 1332 return s->rbio;
0f113f3e 1333}
d02b48c6 1334
0821bcd4 1335BIO *SSL_get_wbio(const SSL *s)
0f113f3e 1336{
2e7dc7cd
MC		 1337 if (s->bbio != NULL) {
1338 /*
1339 * If |bbio| is active, the true caller-configured BIO is its
1340 * |next_bio|.
1341 */
1342 return BIO_next(s->bbio);
1343 }
1344 return s->wbio;
0f113f3e 1345}
d02b48c6 1346
0821bcd4 1347int SSL_get_fd(const SSL *s)
0f113f3e 1348{
2e7dc7cd 1349 return SSL_get_rfd(s);
0f113f3e 1350}
24cbf3ef 1351
0821bcd4 1352int SSL_get_rfd(const SSL *s)
0f113f3e
MC		 1353{
1354 int ret = -1;
1355 BIO *b, *r;
1356
1357 b = SSL_get_rbio(s);
1358 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1359 if (r != NULL)
1360 BIO_get_fd(r, &ret);
26a7d938 1361 return ret;
0f113f3e 1362}
d02b48c6 1363
0821bcd4 1364int SSL_get_wfd(const SSL *s)
0f113f3e
MC		 1365{
1366 int ret = -1;
1367 BIO *b, *r;
1368
1369 b = SSL_get_wbio(s);
1370 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1371 if (r != NULL)
1372 BIO_get_fd(r, &ret);
26a7d938 1373 return ret;
0f113f3e 1374}
24cbf3ef 1375
bc36ee62 1376#ifndef OPENSSL_NO_SOCK
0f113f3e
MC		 1377int SSL_set_fd(SSL *s, int fd)
1378{
1379 int ret = 0;
1380 BIO *bio = NULL;
1381
1382 bio = BIO_new(BIO_s_socket());
1383
1384 if (bio == NULL) {
6849b73c 1385 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
0f113f3e
MC		 1386 goto err;
1387 }
1388 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1389 SSL_set_bio(s, bio, bio);
50ec7505
BP		 1390#ifndef OPENSSL_NO_KTLS
1391 /*
1392 * The new socket is created successfully regardless of ktls_enable.
1393 * ktls_enable doesn't change any functionality of the socket, except
1394 * changing the setsockopt to enable the processing of ktls_start.
1395 * Thus, it is not a problem to call it for non-TLS sockets.
1396 */
1397 ktls_enable(fd);
1398#endif /* OPENSSL_NO_KTLS */
0f113f3e
MC		 1399 ret = 1;
1400 err:
26a7d938 1401 return ret;
0f113f3e 1402}
d02b48c6 1403
0f113f3e
MC		 1404int SSL_set_wfd(SSL *s, int fd)
1405{
2e7dc7cd 1406 BIO *rbio = SSL_get_rbio(s);
0f113f3e 1407
2e7dc7cd
MC		 1408 if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET
1409 || (int)BIO_get_fd(rbio, NULL) != fd) {
1410 BIO *bio = BIO_new(BIO_s_socket());
0f113f3e
MC		 1411
1412 if (bio == NULL) {
6849b73c 1413 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
2e7dc7cd 1414 return 0;
0f113f3e
MC		 1415 }
1416 BIO_set_fd(bio, fd, BIO_NOCLOSE);
65e2d672 1417 SSL_set0_wbio(s, bio);
50ec7505
BP		 1418#ifndef OPENSSL_NO_KTLS
1419 /*
1420 * The new socket is created successfully regardless of ktls_enable.
1421 * ktls_enable doesn't change any functionality of the socket, except
1422 * changing the setsockopt to enable the processing of ktls_start.
1423 * Thus, it is not a problem to call it for non-TLS sockets.
1424 */
1425 ktls_enable(fd);
1426#endif /* OPENSSL_NO_KTLS */
2e7dc7cd 1427 } else {
65e2d672
MC		 1428 BIO_up_ref(rbio);
1429 SSL_set0_wbio(s, rbio);
2e7dc7cd
MC		 1430 }
1431 return 1;
0f113f3e
MC		 1432}
1433
1434int SSL_set_rfd(SSL *s, int fd)
1435{
2e7dc7cd 1436 BIO *wbio = SSL_get_wbio(s);
0f113f3e 1437
2e7dc7cd
MC		 1438 if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET
1439 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
1440 BIO *bio = BIO_new(BIO_s_socket());
0f113f3e
MC		 1441
1442 if (bio == NULL) {
6849b73c 1443 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
2e7dc7cd 1444 return 0;
0f113f3e
MC		 1445 }
1446 BIO_set_fd(bio, fd, BIO_NOCLOSE);
65e2d672 1447 SSL_set0_rbio(s, bio);
2e7dc7cd 1448 } else {
65e2d672
MC		 1449 BIO_up_ref(wbio);
1450 SSL_set0_rbio(s, wbio);
2e7dc7cd
MC		 1451 }
1452
1453 return 1;
0f113f3e
MC		 1454}
1455#endif
ca03109c
BM		 1456
1457/* return length of latest Finished message we sent, copy to 'buf' */
0821bcd4 1458size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
0f113f3e
MC		 1459{
1460 size_t ret = 0;
1461
555cbb32
TS		 1462 ret = s->s3.tmp.finish_md_len;
1463 if (count > ret)
1464 count = ret;
1465 memcpy(buf, s->s3.tmp.finish_md, count);
0f113f3e
MC		 1466 return ret;
1467}
ca03109c
BM		 1468
1469/* return length of latest Finished message we expected, copy to 'buf' */
0821bcd4 1470size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
0f113f3e
MC		 1471{
1472 size_t ret = 0;
ca03109c 1473
555cbb32
TS		 1474 ret = s->s3.tmp.peer_finish_md_len;
1475 if (count > ret)
1476 count = ret;
1477 memcpy(buf, s->s3.tmp.peer_finish_md, count);
0f113f3e
MC		 1478 return ret;
1479}
ca03109c 1480
0821bcd4 1481int SSL_get_verify_mode(const SSL *s)
0f113f3e 1482{
26a7d938 1483 return s->verify_mode;
0f113f3e 1484}
d02b48c6 1485
0821bcd4 1486int SSL_get_verify_depth(const SSL *s)
0f113f3e
MC		 1487{
1488 return X509_VERIFY_PARAM_get_depth(s->param);
1489}
7f89714e 1490
0f113f3e 1491int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
26a7d938 1492 return s->verify_callback;
0f113f3e 1493}
d02b48c6 1494
0821bcd4 1495int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
0f113f3e 1496{
26a7d938 1497 return ctx->verify_mode;
0f113f3e 1498}
d02b48c6 1499
0821bcd4 1500int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
0f113f3e
MC		 1501{
1502 return X509_VERIFY_PARAM_get_depth(ctx->param);
1503}
1504
1505int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
26a7d938 1506 return ctx->default_verify_callback;
0f113f3e
MC		 1507}
1508
1509void SSL_set_verify(SSL *s, int mode,
1510 int (*callback) (int ok, X509_STORE_CTX *ctx))
1511{
1512 s->verify_mode = mode;
1513 if (callback != NULL)
1514 s->verify_callback = callback;
1515}
1516
1517void SSL_set_verify_depth(SSL *s, int depth)
1518{
1519 X509_VERIFY_PARAM_set_depth(s->param, depth);
1520}
1521
1522void SSL_set_read_ahead(SSL *s, int yes)
1523{
52e1d7b1 1524 RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
0f113f3e 1525}
d02b48c6 1526
0821bcd4 1527int SSL_get_read_ahead(const SSL *s)
0f113f3e 1528{
52e1d7b1 1529 return RECORD_LAYER_get_read_ahead(&s->rlayer);
0f113f3e 1530}
d02b48c6 1531
0821bcd4 1532int SSL_pending(const SSL *s)
0f113f3e 1533{
8b0e934a
MC		 1534 size_t pending = s->method->ssl_pending(s);
1535
0f113f3e
MC		 1536 /*
1537 * SSL_pending cannot work properly if read-ahead is enabled
1538 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1539 * impossible to fix since SSL_pending cannot report errors that may be
1540 * observed while scanning the new data. (Note that SSL_pending() is
1541 * often used as a boolean value, so we'd better not return -1.)
8b0e934a
MC		 1542 *
1543 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1544 * we just return INT_MAX.
0f113f3e 1545 */
348240c6 1546 return pending < INT_MAX ? (int)pending : INT_MAX;
0f113f3e 1547}
d02b48c6 1548
49580f25
MC		 1549int SSL_has_pending(const SSL *s)
1550{
1551 /*
1552 * Similar to SSL_pending() but returns a 1 to indicate that we have
1553 * unprocessed data available or 0 otherwise (as opposed to the number of
1554 * bytes available). Unlike SSL_pending() this will take into account
1555 * read_ahead data. A 1 return simply indicates that we have unprocessed
1556 * data. That data may not result in any application data, or we may fail
1557 * to parse the records for some reason.
1558 */
b8c49611 1559 if (RECORD_LAYER_processed_read_pending(&s->rlayer))
49580f25
MC		 1560 return 1;
1561
1562 return RECORD_LAYER_read_pending(&s->rlayer);
1563}
1564
8c2bfd25 1565X509 *SSL_get1_peer_certificate(const SSL *s)
0f113f3e 1566{
8c2bfd25 1567 X509 *r = SSL_get0_peer_certificate(s);
d02b48c6 1568
8c2bfd25
TS		 1569 if (r != NULL)
1570 X509_up_ref(r);
0f113f3e 1571
26a7d938 1572 return r;
0f113f3e 1573}
d02b48c6 1574
8c2bfd25
TS		 1575X509 *SSL_get0_peer_certificate(const SSL *s)
1576{
1577 if ((s == NULL) || (s->session == NULL))
1578 return NULL;
1579 else
1580 return s->session->peer;
1581}
1582
0821bcd4 1583STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
0f113f3e
MC		 1584{
1585 STACK_OF(X509) *r;
1586
c34b0f99 1587 if ((s == NULL) || (s->session == NULL))
0f113f3e
MC		 1588 r = NULL;
1589 else
c34b0f99 1590 r = s->session->peer_chain;
0f113f3e
MC		 1591
1592 /*
1593 * If we are a client, cert_chain includes the peer's own certificate; if
1594 * we are a server, it does not.
1595 */
1596
26a7d938 1597 return r;
0f113f3e
MC		 1598}
1599
1600/*
1601 * Now in theory, since the calling process own 't' it should be safe to
1602 * modify. We need to be able to read f without being hassled
1603 */
17dd65e6 1604int SSL_copy_session_id(SSL *t, const SSL *f)
0f113f3e 1605{
16203f7b 1606 int i;
3e6a0d57 1607 /* Do we need to do SSL locking? */
61986d32 1608 if (!SSL_set_session(t, SSL_get_session(f))) {
17dd65e6 1609 return 0;
69f68237 1610 }
0f113f3e
MC		 1611
1612 /*
87d9cafa 1613 * what if we are setup for one protocol version but want to talk another
0f113f3e
MC		 1614 */
1615 if (t->method != f->method) {
919ba009
VD		 1616 t->method->ssl_free(t);
1617 t->method = f->method;
1618 if (t->method->ssl_new(t) == 0)
1619 return 0;
0f113f3e
MC		 1620 }
1621
2f545ae4 1622 CRYPTO_UP_REF(&f->cert->references, &i, f->cert->lock);
24a0d393
KR		 1623 ssl_cert_free(t->cert);
1624 t->cert = f->cert;
348240c6 1625 if (!SSL_set_session_id_context(t, f->sid_ctx, (int)f->sid_ctx_length)) {
17dd65e6 1626 return 0;
69f68237 1627 }
17dd65e6
MC		 1628
1629 return 1;
0f113f3e 1630}
d02b48c6 1631
58964a49 1632/* Fix this so it checks all the valid key/cert options */
0821bcd4 1633int SSL_CTX_check_private_key(const SSL_CTX *ctx)
0f113f3e 1634{
a230b26e 1635 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
6849b73c 1636 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
26a7d938 1637 return 0;
0f113f3e
MC		 1638 }
1639 if (ctx->cert->key->privatekey == NULL) {
6849b73c 1640 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
26a7d938 1641 return 0;
0f113f3e 1642 }
26a7d938
K		 1643 return X509_check_private_key
1644 (ctx->cert->key->x509, ctx->cert->key->privatekey);
0f113f3e 1645}
d02b48c6 1646
58964a49 1647/* Fix this function so that it takes an optional type parameter */
0821bcd4 1648int SSL_check_private_key(const SSL *ssl)
0f113f3e
MC		 1649{
1650 if (ssl == NULL) {
6849b73c 1651 ERR_raise(ERR_LIB_SSL, ERR_R_PASSED_NULL_PARAMETER);
26a7d938 1652 return 0;
0f113f3e 1653 }
0f113f3e 1654 if (ssl->cert->key->x509 == NULL) {
6849b73c 1655 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
26a7d938 1656 return 0;
0f113f3e
MC		 1657 }
1658 if (ssl->cert->key->privatekey == NULL) {
6849b73c 1659 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
26a7d938 1660 return 0;
0f113f3e 1661 }
26a7d938
K		 1662 return X509_check_private_key(ssl->cert->key->x509,
1663 ssl->cert->key->privatekey);
0f113f3e 1664}
d02b48c6 1665
07bbc92c
MC		 1666int SSL_waiting_for_async(SSL *s)
1667{
e8aa8b6c 1668 if (s->job)
82676094
MC		 1669 return 1;
1670
07bbc92c
MC		 1671 return 0;
1672}
1673
ff75a257 1674int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
f4da39d2 1675{
ff75a257
MC		 1676 ASYNC_WAIT_CTX *ctx = s->waitctx;
1677
1678 if (ctx == NULL)
1679 return 0;
1680 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
1681}
f4da39d2 1682
ff75a257
MC		 1683int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
1684 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
1685{
1686 ASYNC_WAIT_CTX *ctx = s->waitctx;
1687
1688 if (ctx == NULL)
1689 return 0;
1690 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
1691 numdelfds);
f4da39d2
MC		 1692}
1693
9f5a87fd
PY		 1694int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback)
1695{
1696 ctx->async_cb = callback;
1697 return 1;
1698}
1699
1700int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg)
1701{
1702 ctx->async_cb_arg = arg;
1703 return 1;
1704}
1705
1706int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback)
1707{
1708 s->async_cb = callback;
1709 return 1;
1710}
1711
1712int SSL_set_async_callback_arg(SSL *s, void *arg)
1713{
1714 s->async_cb_arg = arg;
1715 return 1;
1716}
1717
1718int SSL_get_async_status(SSL *s, int *status)
1719{
1720 ASYNC_WAIT_CTX *ctx = s->waitctx;
1721
1722 if (ctx == NULL)
1723 return 0;
1724 *status = ASYNC_WAIT_CTX_get_status(ctx);
1725 return 1;
1726}
1727
4f43d0e7 1728int SSL_accept(SSL *s)
0f113f3e 1729{
c4c32155 1730 if (s->handshake_func == NULL) {
0f113f3e
MC		 1731 /* Not properly initialized yet */
1732 SSL_set_accept_state(s);
07bbc92c 1733 }
add2f5ca
MC		 1734
1735 return SSL_do_handshake(s);
0f113f3e 1736}
d02b48c6 1737
4f43d0e7 1738int SSL_connect(SSL *s)
0f113f3e 1739{
c4c32155 1740 if (s->handshake_func == NULL) {
0f113f3e
MC		 1741 /* Not properly initialized yet */
1742 SSL_set_connect_state(s);
add2f5ca 1743 }
b31b04d9 1744
add2f5ca 1745 return SSL_do_handshake(s);
0f113f3e 1746}
d02b48c6 1747
0821bcd4 1748long SSL_get_default_timeout(const SSL *s)
0f113f3e 1749{
26a7d938 1750 return s->method->get_timeout();
0f113f3e
MC		 1751}
1752
9f5a87fd
PY		 1753static int ssl_async_wait_ctx_cb(void *arg)
1754{
1755 SSL *s = (SSL *)arg;
1756
1757 return s->async_cb(s, s->async_cb_arg);
1758}
1759
7fecbf6f 1760static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
a230b26e
EK		 1761 int (*func) (void *))
1762{
add2f5ca 1763 int ret;
ff75a257
MC		 1764 if (s->waitctx == NULL) {
1765 s->waitctx = ASYNC_WAIT_CTX_new();
1766 if (s->waitctx == NULL)
1767 return -1;
9f5a87fd
PY		 1768 if (s->async_cb != NULL
1769 && !ASYNC_WAIT_CTX_set_callback
1770 (s->waitctx, ssl_async_wait_ctx_cb, s))
1771 return -1;
ff75a257 1772 }
07f620e3
MC		 1773
1774 s->rwstate = SSL_NOTHING;
e8aa8b6c 1775 switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args,
a230b26e 1776 sizeof(struct ssl_async_args))) {
add2f5ca
MC		 1777 case ASYNC_ERR:
1778 s->rwstate = SSL_NOTHING;
6849b73c 1779 ERR_raise(ERR_LIB_SSL, SSL_R_FAILED_TO_INIT_ASYNC);
add2f5ca
MC		 1780 return -1;
1781 case ASYNC_PAUSE:
1782 s->rwstate = SSL_ASYNC_PAUSED;
1783 return -1;
fc7f190c
MC		 1784 case ASYNC_NO_JOBS:
1785 s->rwstate = SSL_ASYNC_NO_JOBS;
1786 return -1;
add2f5ca
MC		 1787 case ASYNC_FINISH:
1788 s->job = NULL;
1789 return ret;
1790 default:
1791 s->rwstate = SSL_NOTHING;
6849b73c 1792 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
add2f5ca
MC		 1793 /* Shouldn't happen */
1794 return -1;
1795 }
1796}
07bbc92c 1797
add2f5ca 1798static int ssl_io_intern(void *vargs)
07bbc92c
MC		 1799{
1800 struct ssl_async_args *args;
1801 SSL *s;
1802 void *buf;
348240c6 1803 size_t num;
07bbc92c
MC		 1804
1805 args = (struct ssl_async_args *)vargs;
1806 s = args->s;
1807 buf = args->buf;
1808 num = args->num;
ec447924
MC		 1809 switch (args->type) {
1810 case READFUNC:
7ee8627f 1811 return args->f.func_read(s, buf, num, &s->asyncrw);
ec447924 1812 case WRITEFUNC:
7ee8627f 1813 return args->f.func_write(s, buf, num, &s->asyncrw);
ec447924
MC		 1814 case OTHERFUNC:
1815 return args->f.func_other(s);
1816 }
1817 return -1;
07bbc92c
MC		 1818}
1819
4ee7d3f9 1820int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
0f113f3e 1821{
c4c32155 1822 if (s->handshake_func == NULL) {
6849b73c 1823 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
0f113f3e
MC		 1824 return -1;
1825 }
1826
1827 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1828 s->rwstate = SSL_NOTHING;
4ee7d3f9 1829 return 0;
0f113f3e 1830 }
07bbc92c 1831
564547e4
MC		 1832 if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
1833 || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
6849b73c 1834 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
0a5ece5b
MC		 1835 return 0;
1836 }
564547e4
MC		 1837 /*
1838 * If we are a client and haven't received the ServerHello etc then we
1839 * better do that
1840 */
1841 ossl_statem_check_finish_init(s, 0);
0a5ece5b 1842
e8aa8b6c 1843 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
add2f5ca 1844 struct ssl_async_args args;
eda75751 1845 int ret;
add2f5ca
MC		 1846
1847 args.s = s;
1848 args.buf = buf;
1849 args.num = num;
ec447924
MC		 1850 args.type = READFUNC;
1851 args.f.func_read = s->method->ssl_read;
add2f5ca 1852
eda75751 1853 ret = ssl_start_async_job(s, &args, ssl_io_intern);
54105ddd 1854 *readbytes = s->asyncrw;
eda75751 1855 return ret;
07bbc92c 1856 } else {
54105ddd 1857 return s->method->ssl_read(s, buf, num, readbytes);
07bbc92c 1858 }
0f113f3e
MC		 1859}
1860
4ee7d3f9 1861int SSL_read(SSL *s, void *buf, int num)
eda75751
MC		 1862{
1863 int ret;
54105ddd 1864 size_t readbytes;
eda75751
MC		 1865
1866 if (num < 0) {
6849b73c 1867 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
eda75751
MC		 1868 return -1;
1869 }
1870
4ee7d3f9 1871 ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
eda75751
MC		 1872
1873 /*
1874 * The cast is safe here because ret should be <= INT_MAX because num is
1875 * <= INT_MAX
1876 */
1877 if (ret > 0)
54105ddd 1878 ret = (int)readbytes;
eda75751
MC		 1879
1880 return ret;
1881}
1882
4ee7d3f9
KR		 1883int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
1884{
1885 int ret = ssl_read_internal(s, buf, num, readbytes);
1886
1887 if (ret < 0)
1888 ret = 0;
1889 return ret;
1890}
1891
f533fbd4 1892int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
d781d247
MC		 1893{
1894 int ret;
1895
1896 if (!s->server) {
6849b73c 1897 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
f533fbd4 1898 return SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 1899 }
1900
d781d247
MC		 1901 switch (s->early_data_state) {
1902 case SSL_EARLY_DATA_NONE:
1903 if (!SSL_in_before(s)) {
6849b73c 1904 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
f533fbd4 1905 return SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 1906 }
1907 /* fall through */
1908
1909 case SSL_EARLY_DATA_ACCEPT_RETRY:
1910 s->early_data_state = SSL_EARLY_DATA_ACCEPTING;
1911 ret = SSL_accept(s);
1912 if (ret <= 0) {
1913 /* NBIO or error */
1914 s->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
f533fbd4 1915 return SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 1916 }
1917 /* fall through */
1918
1919 case SSL_EARLY_DATA_READ_RETRY:
1920 if (s->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
1921 s->early_data_state = SSL_EARLY_DATA_READING;
1922 ret = SSL_read_ex(s, buf, num, readbytes);
1923 /*
ef6c191b
MC		 1924 * State machine will update early_data_state to
1925 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1926 * message
d781d247
MC		 1927 */
1928 if (ret > 0 || (ret <= 0 && s->early_data_state
1929 != SSL_EARLY_DATA_FINISHED_READING)) {
1930 s->early_data_state = SSL_EARLY_DATA_READ_RETRY;
f533fbd4
MC		 1931 return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
1932 : SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 1933 }
1934 } else {
1935 s->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
1936 }
1937 *readbytes = 0;
f533fbd4 1938 return SSL_READ_EARLY_DATA_FINISH;
d781d247
MC		 1939
1940 default:
6849b73c 1941 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
f533fbd4 1942 return SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 1943 }
1944}
1945
f5b519c4 1946int SSL_get_early_data_status(const SSL *s)
1ea4d09a
MC		 1947{
1948 return s->ext.early_data;
1949}
1950
4ee7d3f9 1951static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
0f113f3e 1952{
c4c32155 1953 if (s->handshake_func == NULL) {
6849b73c 1954 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
0f113f3e
MC		 1955 return -1;
1956 }
1957
1958 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
4ee7d3f9 1959 return 0;
0f113f3e 1960 }
e8aa8b6c 1961 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
add2f5ca 1962 struct ssl_async_args args;
eda75751 1963 int ret;
0f113f3e 1964
add2f5ca
MC		 1965 args.s = s;
1966 args.buf = buf;
1967 args.num = num;
ec447924
MC		 1968 args.type = READFUNC;
1969 args.f.func_read = s->method->ssl_peek;
07bbc92c 1970
eda75751 1971 ret = ssl_start_async_job(s, &args, ssl_io_intern);
54105ddd 1972 *readbytes = s->asyncrw;
eda75751 1973 return ret;
add2f5ca 1974 } else {
54105ddd 1975 return s->method->ssl_peek(s, buf, num, readbytes);
add2f5ca 1976 }
07bbc92c
MC		 1977}
1978
4ee7d3f9 1979int SSL_peek(SSL *s, void *buf, int num)
7ee8627f
MC		 1980{
1981 int ret;
4ee7d3f9 1982 size_t readbytes;
7ee8627f
MC		 1983
1984 if (num < 0) {
6849b73c 1985 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
7ee8627f
MC		 1986 return -1;
1987 }
1988
4ee7d3f9 1989 ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
7ee8627f
MC		 1990
1991 /*
1992 * The cast is safe here because ret should be <= INT_MAX because num is
1993 * <= INT_MAX
1994 */
1995 if (ret > 0)
4ee7d3f9 1996 ret = (int)readbytes;
7ee8627f
MC		 1997
1998 return ret;
1999}
2000
4ee7d3f9
KR		 2001
2002int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2003{
2004 int ret = ssl_peek_internal(s, buf, num, readbytes);
2005
2006 if (ret < 0)
2007 ret = 0;
2008 return ret;
2009}
2010
2011int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written)
0f113f3e 2012{
c4c32155 2013 if (s->handshake_func == NULL) {
6849b73c 2014 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
0f113f3e
MC		 2015 return -1;
2016 }
2017
2018 if (s->shutdown & SSL_SENT_SHUTDOWN) {
2019 s->rwstate = SSL_NOTHING;
6849b73c 2020 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
4ee7d3f9 2021 return -1;
0f113f3e 2022 }
07bbc92c 2023
ef6c191b 2024 if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
09f28874
MC		 2025 || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
2026 || s->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
6849b73c 2027 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
49e7fe12 2028 return 0;
0a5ece5b 2029 }
564547e4
MC		 2030 /* If we are a client and haven't sent the Finished we better do that */
2031 ossl_statem_check_finish_init(s, 1);
49e7fe12 2032
e8aa8b6c 2033 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
7ee8627f 2034 int ret;
add2f5ca
MC		 2035 struct ssl_async_args args;
2036
2037 args.s = s;
2038 args.buf = (void *)buf;
2039 args.num = num;
ec447924
MC		 2040 args.type = WRITEFUNC;
2041 args.f.func_write = s->method->ssl_write;
add2f5ca 2042
7ee8627f
MC		 2043 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2044 *written = s->asyncrw;
2045 return ret;
07bbc92c 2046 } else {
7ee8627f 2047 return s->method->ssl_write(s, buf, num, written);
07bbc92c 2048 }
0f113f3e 2049}
d02b48c6 2050
7c3a7561
BP		 2051ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size, int flags)
2052{
2053 ossl_ssize_t ret;
2054
2055 if (s->handshake_func == NULL) {
6849b73c 2056 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
7c3a7561
BP		 2057 return -1;
2058 }
2059
2060 if (s->shutdown & SSL_SENT_SHUTDOWN) {
2061 s->rwstate = SSL_NOTHING;
6849b73c 2062 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
7c3a7561
BP		 2063 return -1;
2064 }
2065
2066 if (!BIO_get_ktls_send(s->wbio)) {
6849b73c 2067 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
7c3a7561
BP		 2068 return -1;
2069 }
2070
2071 /* If we have an alert to send, lets send it */
2072 if (s->s3.alert_dispatch) {
2073 ret = (ossl_ssize_t)s->method->ssl_dispatch_alert(s);
2074 if (ret <= 0) {
2075 /* SSLfatal() already called if appropriate */
2076 return ret;
2077 }
2078 /* if it went, fall through and send more stuff */
2079 }
2080
2081 s->rwstate = SSL_WRITING;
2082 if (BIO_flush(s->wbio) <= 0) {
2083 if (!BIO_should_retry(s->wbio)) {
2084 s->rwstate = SSL_NOTHING;
2085 } else {
2086#ifdef EAGAIN
2087 set_sys_error(EAGAIN);
2088#endif
2089 }
2090 return -1;
2091 }
2092
712c0942 2093#ifdef OPENSSL_NO_KTLS
fa7a8074
RL		 2094 ERR_raise_data(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR,
2095 "can't call ktls_sendfile(), ktls disabled");
712c0942 2096 return -1;
7c3a7561 2097#else
712c0942 2098 ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags);
7c3a7561
BP		 2099 if (ret < 0) {
2100#if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2101 if ((get_last_sys_error() == EAGAIN) ||
2102 (get_last_sys_error() == EINTR) ||
2103 (get_last_sys_error() == EBUSY))
2104 BIO_set_retry_write(s->wbio);
2105 else
2106#endif
6849b73c 2107 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
7c3a7561
BP		 2108 return ret;
2109 }
2110 s->rwstate = SSL_NOTHING;
2111 return ret;
712c0942 2112#endif
7c3a7561
BP		 2113}
2114
4ee7d3f9
KR		 2115int SSL_write(SSL *s, const void *buf, int num)
2116{
2117 int ret;
2118 size_t written;
2119
2120 if (num < 0) {
6849b73c 2121 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
4ee7d3f9
KR		 2122 return -1;
2123 }
2124
2125 ret = ssl_write_internal(s, buf, (size_t)num, &written);
2126
2127 /*
2128 * The cast is safe here because ret should be <= INT_MAX because num is
2129 * <= INT_MAX
2130 */
2131 if (ret > 0)
2132 ret = (int)written;
2133
2134 return ret;
2135}
2136
2137int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
2138{
2139 int ret = ssl_write_internal(s, buf, num, written);
2140
2141 if (ret < 0)
2142 ret = 0;
2143 return ret;
2144}
2145
0665b4ed 2146int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
49e7fe12 2147{
a0cb628b 2148 int ret, early_data_state;
2a8db717 2149 size_t writtmp;
f7414b08 2150 uint32_t partialwrite;
49e7fe12 2151
49e7fe12
MC		 2152 switch (s->early_data_state) {
2153 case SSL_EARLY_DATA_NONE:
09f28874
MC		 2154 if (s->server
2155 || !SSL_in_before(s)
add8d0e9
MC		 2156 || ((s->session == NULL || s->session->ext.max_early_data == 0)
2157 && (s->psk_use_session_cb == NULL))) {
6849b73c 2158 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
49e7fe12
MC		 2159 return 0;
2160 }
2161 /* fall through */
2162
2163 case SSL_EARLY_DATA_CONNECT_RETRY:
2164 s->early_data_state = SSL_EARLY_DATA_CONNECTING;
2165 ret = SSL_connect(s);
2166 if (ret <= 0) {
2167 /* NBIO or error */
2168 s->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
2169 return 0;
2170 }
2171 /* fall through */
2172
2173 case SSL_EARLY_DATA_WRITE_RETRY:
2174 s->early_data_state = SSL_EARLY_DATA_WRITING;
f7414b08
MC		 2175 /*
2176 * We disable partial write for early data because we don't keep track
2177 * of how many bytes we've written between the SSL_write_ex() call and
2178 * the flush if the flush needs to be retried)
2179 */
2180 partialwrite = s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
2181 s->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
2a8db717 2182 ret = SSL_write_ex(s, buf, num, &writtmp);
f7414b08 2183 s->mode |= partialwrite;
2a8db717
MC		 2184 if (!ret) {
2185 s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2186 return ret;
2187 }
2188 s->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
2189 /* fall through */
2190
2191 case SSL_EARLY_DATA_WRITE_FLUSH:
2192 /* The buffering BIO is still in place so we need to flush it */
2193 if (statem_flush(s) != 1)
2194 return 0;
2a8db717 2195 *written = num;
49e7fe12 2196 s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2a8db717 2197 return 1;
49e7fe12 2198
116d0da5 2199 case SSL_EARLY_DATA_FINISHED_READING:
a0cb628b
MC		 2200 case SSL_EARLY_DATA_READ_RETRY:
2201 early_data_state = s->early_data_state;
09f28874
MC		 2202 /* We are a server writing to an unauthenticated client */
2203 s->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
2204 ret = SSL_write_ex(s, buf, num, written);
5fe37157
MC		 2205 /* The buffering BIO is still in place */
2206 if (ret)
2207 (void)BIO_flush(s->wbio);
bbea9f2c 2208 s->early_data_state = early_data_state;
09f28874
MC		 2209 return ret;
2210
49e7fe12 2211 default:
6849b73c 2212 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
49e7fe12
MC		 2213 return 0;
2214 }
2215}
2216
4f43d0e7 2217int SSL_shutdown(SSL *s)
0f113f3e
MC		 2218{
2219 /*
2220 * Note that this function behaves differently from what one might
2221 * expect. Return values are 0 for no success (yet), 1 for success; but
2222 * calling it once is usually not enough, even if blocking I/O is used
2223 * (see ssl3_shutdown).
2224 */
2225
c4c32155 2226 if (s->handshake_func == NULL) {
6849b73c 2227 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
0f113f3e
MC		 2228 return -1;
2229 }
2230
64f9f406 2231 if (!SSL_in_init(s)) {
e8aa8b6c 2232 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
64f9f406 2233 struct ssl_async_args args;
ec447924 2234
09134f18 2235 memset(&args, 0, sizeof(args));
64f9f406
MC		 2236 args.s = s;
2237 args.type = OTHERFUNC;
2238 args.f.func_other = s->method->ssl_shutdown;
ec447924 2239
64f9f406
MC		 2240 return ssl_start_async_job(s, &args, ssl_io_intern);
2241 } else {
2242 return s->method->ssl_shutdown(s);
2243 }
ec447924 2244 } else {
6849b73c 2245 ERR_raise(ERR_LIB_SSL, SSL_R_SHUTDOWN_WHILE_IN_INIT);
64f9f406 2246 return -1;
ec447924 2247 }
0f113f3e 2248}
d02b48c6 2249
4fbfe86a 2250int SSL_key_update(SSL *s, int updatetype)
44c04a2e
MC		 2251{
2252 if (!SSL_IS_TLS13(s)) {
6849b73c 2253 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
44c04a2e
MC		 2254 return 0;
2255 }
2256
2257 if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
2258 && updatetype != SSL_KEY_UPDATE_REQUESTED) {
6849b73c 2259 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_KEY_UPDATE_TYPE);
44c04a2e
MC		 2260 return 0;
2261 }
2262
2263 if (!SSL_is_init_finished(s)) {
6849b73c 2264 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
44c04a2e
MC		 2265 return 0;
2266 }
2267
3bec4851
MC		 2268 if (RECORD_LAYER_write_pending(&s->rlayer)) {
2269 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_WRITE_RETRY);
2270 return 0;
2271 }
2272
44c04a2e 2273 ossl_statem_set_in_init(s, 1);
44c04a2e 2274 s->key_update = updatetype;
44c04a2e
MC		 2275 return 1;
2276}
2277
3499327b 2278int SSL_get_key_update_type(const SSL *s)
53d1d07d
MC		 2279{
2280 return s->key_update;
2281}
2282
55373bfd
RS		 2283/*
2284 * Can we accept a renegotiation request? If yes, set the flag and
2285 * return 1 if yes. If not, raise error and return 0.
2286 */
2287static int can_renegotiate(const SSL *s)
0f113f3e 2288{
44c04a2e 2289 if (SSL_IS_TLS13(s)) {
6849b73c 2290 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2c0980d2 2291 return 0;
44c04a2e 2292 }
cda6b998 2293
55373bfd 2294 if ((s->options & SSL_OP_NO_RENEGOTIATION) != 0) {
6849b73c 2295 ERR_raise(ERR_LIB_SSL, SSL_R_NO_RENEGOTIATION);
db0f35dd
TS		 2296 return 0;
2297 }
44959ee4 2298
55373bfd
RS		 2299 return 1;
2300}
2301
2302int SSL_renegotiate(SSL *s)
2303{
2304 if (!can_renegotiate(s))
2305 return 0;
2306
db0f35dd 2307 s->renegotiate = 1;
0f113f3e 2308 s->new_session = 1;
26a7d938 2309 return s->method->ssl_renegotiate(s);
0f113f3e 2310}
d02b48c6 2311
44959ee4 2312int SSL_renegotiate_abbreviated(SSL *s)
0f113f3e 2313{
55373bfd 2314 if (!can_renegotiate(s))
2c0980d2 2315 return 0;
c519e89f 2316
db0f35dd 2317 s->renegotiate = 1;
0f113f3e 2318 s->new_session = 0;
26a7d938 2319 return s->method->ssl_renegotiate(s);
0f113f3e 2320}
44959ee4 2321
3499327b 2322int SSL_renegotiate_pending(const SSL *s)
0f113f3e
MC		 2323{
2324 /*
2325 * becomes true when negotiation is requested; false again once a
2326 * handshake has finished
2327 */
2328 return (s->renegotiate != 0);
2329}
2330
3bfacb5f
BK		 2331int SSL_new_session_ticket(SSL *s)
2332{
7c73fefe
BK		 2333 /* If we are in init because we're sending tickets, okay to send more. */
2334 if ((SSL_in_init(s) && s->ext.extra_tickets_expected == 0)
2335 || SSL_IS_FIRST_HANDSHAKE(s) || !s->server
35774d55
BK		 2336 || !SSL_IS_TLS13(s))
2337 return 0;
2338 s->ext.extra_tickets_expected++;
ca001524 2339 if (!RECORD_LAYER_write_pending(&s->rlayer) && !SSL_in_init(s))
7c73fefe 2340 ossl_statem_set_in_init(s, 1);
35774d55 2341 return 1;
3bfacb5f
BK		 2342}
2343
0f113f3e
MC		 2344long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
2345{
2346 long l;
2347
2348 switch (cmd) {
2349 case SSL_CTRL_GET_READ_AHEAD:
26a7d938 2350 return RECORD_LAYER_get_read_ahead(&s->rlayer);
0f113f3e 2351 case SSL_CTRL_SET_READ_AHEAD:
52e1d7b1
MC		 2352 l = RECORD_LAYER_get_read_ahead(&s->rlayer);
2353 RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
26a7d938 2354 return l;
0f113f3e
MC		 2355
2356 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
2357 s->msg_callback_arg = parg;
2358 return 1;
2359
0f113f3e
MC		 2360 case SSL_CTRL_MODE:
2361 return (s->mode |= larg);
2362 case SSL_CTRL_CLEAR_MODE:
2363 return (s->mode &= ~larg);
2364 case SSL_CTRL_GET_MAX_CERT_LIST:
26a7d938 2365 return (long)s->max_cert_list;
0f113f3e 2366 case SSL_CTRL_SET_MAX_CERT_LIST:
348240c6
MC		 2367 if (larg < 0)
2368 return 0;
2369 l = (long)s->max_cert_list;
2370 s->max_cert_list = (size_t)larg;
2371 return l;
0f113f3e
MC		 2372 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2373 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2374 return 0;
50ec7505
BP		 2375#ifndef OPENSSL_NO_KTLS
2376 if (s->wbio != NULL && BIO_get_ktls_send(s->wbio))
2377 return 0;
2378#endif /* OPENSSL_NO_KTLS */
0f113f3e 2379 s->max_send_fragment = larg;
d102d9df
MC		 2380 if (s->max_send_fragment < s->split_send_fragment)
2381 s->split_send_fragment = s->max_send_fragment;
2382 return 1;
2383 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
7ee8627f 2384 if ((size_t)larg > s->max_send_fragment || larg == 0)
d102d9df
MC		 2385 return 0;
2386 s->split_send_fragment = larg;
0f113f3e 2387 return 1;
d102d9df
MC		 2388 case SSL_CTRL_SET_MAX_PIPELINES:
2389 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2390 return 0;
2391 s->max_pipelines = larg;
94777c9c
MC		 2392 if (larg > 1)
2393 RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
07077415 2394 return 1;
0f113f3e 2395 case SSL_CTRL_GET_RI_SUPPORT:
555cbb32 2396 return s->s3.send_connection_binding;
dfb39f73
TM		 2397 case SSL_CTRL_SET_RETRY_VERIFY:
2398 s->rwstate = SSL_RETRY_VERIFY;
2399 return 1;
0f113f3e
MC		 2400 case SSL_CTRL_CERT_FLAGS:
2401 return (s->cert->cert_flags |= larg);
2402 case SSL_CTRL_CLEAR_CERT_FLAGS:
2403 return (s->cert->cert_flags &= ~larg);
2404
2405 case SSL_CTRL_GET_RAW_CIPHERLIST:
2406 if (parg) {
555cbb32 2407 if (s->s3.tmp.ciphers_raw == NULL)
0f113f3e 2408 return 0;
555cbb32
TS		 2409 *(unsigned char **)parg = s->s3.tmp.ciphers_raw;
2410 return (int)s->s3.tmp.ciphers_rawlen;
e9fa092e
EK		 2411 } else {
2412 return TLS_CIPHER_LEN;
2413 }
c5364614 2414 case SSL_CTRL_GET_EXTMS_SUPPORT:
024f543c 2415 if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s))
a230b26e 2416 return -1;
dccd20d1 2417 if (s->session->flags & SSL_SESS_FLAG_EXTMS)
c5364614
DSH		 2418 return 1;
2419 else
2420 return 0;
7946ab33 2421 case SSL_CTRL_SET_MIN_PROTO_VERSION:
c8feba72
BK		 2422 return ssl_check_allowed_versions(larg, s->max_proto_version)
2423 && ssl_set_version_bound(s->ctx->method->version, (int)larg,
2424 &s->min_proto_version);
3edabd3c
CH		 2425 case SSL_CTRL_GET_MIN_PROTO_VERSION:
2426 return s->min_proto_version;
7946ab33 2427 case SSL_CTRL_SET_MAX_PROTO_VERSION:
c8feba72
BK		 2428 return ssl_check_allowed_versions(s->min_proto_version, larg)
2429 && ssl_set_version_bound(s->ctx->method->version, (int)larg,
2430 &s->max_proto_version);
3edabd3c
CH		 2431 case SSL_CTRL_GET_MAX_PROTO_VERSION:
2432 return s->max_proto_version;
0f113f3e 2433 default:
26a7d938 2434 return s->method->ssl_ctrl(s, cmd, larg, parg);
0f113f3e
MC		 2435 }
2436}
2437
2438long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
2439{
2440 switch (cmd) {
2441 case SSL_CTRL_SET_MSG_CALLBACK:
2442 s->msg_callback = (void (*)
2443 (int write_p, int version, int content_type,
2444 const void *buf, size_t len, SSL *ssl,
2445 void *arg))(fp);
2446 return 1;
2447
2448 default:
26a7d938 2449 return s->method->ssl_callback_ctrl(s, cmd, fp);
0f113f3e
MC		 2450 }
2451}
d3442bc7 2452
3c1d6bbc 2453LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
0f113f3e
MC		 2454{
2455 return ctx->sessions;
2456}
2457
acce0557
P		 2458static int ssl_tsan_load(SSL_CTX *ctx, TSAN_QUALIFIER int *stat)
2459{
2460 int res = 0;
2461
2462 if (ssl_tsan_lock(ctx)) {
2463 res = tsan_load(stat);
2464 ssl_tsan_unlock(ctx);
2465 }
2466 return res;
2467}
2468
0f113f3e
MC		 2469long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
2470{
2471 long l;
2472 /* For some cases with ctx == NULL perform syntax checks */
2473 if (ctx == NULL) {
2474 switch (cmd) {
de4d764e 2475 case SSL_CTRL_SET_GROUPS_LIST:
260009d8 2476 return tls1_set_groups_list(ctx, NULL, NULL, parg);
0f113f3e
MC		 2477 case SSL_CTRL_SET_SIGALGS_LIST:
2478 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
2479 return tls1_set_sigalgs_list(NULL, parg, 0);
2480 default:
2481 return 0;
2482 }
2483 }
2484
2485 switch (cmd) {
2486 case SSL_CTRL_GET_READ_AHEAD:
26a7d938 2487 return ctx->read_ahead;
0f113f3e
MC		 2488 case SSL_CTRL_SET_READ_AHEAD:
2489 l = ctx->read_ahead;
2490 ctx->read_ahead = larg;
26a7d938 2491 return l;
0f113f3e
MC		 2492
2493 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
2494 ctx->msg_callback_arg = parg;
2495 return 1;
2496
2497 case SSL_CTRL_GET_MAX_CERT_LIST:
26a7d938 2498 return (long)ctx->max_cert_list;
0f113f3e 2499 case SSL_CTRL_SET_MAX_CERT_LIST:
348240c6
MC		 2500 if (larg < 0)
2501 return 0;
2502 l = (long)ctx->max_cert_list;
2503 ctx->max_cert_list = (size_t)larg;
2504 return l;
0f113f3e
MC		 2505
2506 case SSL_CTRL_SET_SESS_CACHE_SIZE:
348240c6
MC		 2507 if (larg < 0)
2508 return 0;
2509 l = (long)ctx->session_cache_size;
2510 ctx->session_cache_size = (size_t)larg;
2511 return l;
0f113f3e 2512 case SSL_CTRL_GET_SESS_CACHE_SIZE:
26a7d938 2513 return (long)ctx->session_cache_size;
0f113f3e
MC		 2514 case SSL_CTRL_SET_SESS_CACHE_MODE:
2515 l = ctx->session_cache_mode;
2516 ctx->session_cache_mode = larg;
26a7d938 2517 return l;
0f113f3e 2518 case SSL_CTRL_GET_SESS_CACHE_MODE:
26a7d938 2519 return ctx->session_cache_mode;
0f113f3e
MC		 2520
2521 case SSL_CTRL_SESS_NUMBER:
26a7d938 2522 return lh_SSL_SESSION_num_items(ctx->sessions);
0f113f3e 2523 case SSL_CTRL_SESS_CONNECT:
acce0557 2524 return ssl_tsan_load(ctx, &ctx->stats.sess_connect);
0f113f3e 2525 case SSL_CTRL_SESS_CONNECT_GOOD:
acce0557 2526 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_good);
0f113f3e 2527 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
acce0557 2528 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_renegotiate);
0f113f3e 2529 case SSL_CTRL_SESS_ACCEPT:
acce0557 2530 return ssl_tsan_load(ctx, &ctx->stats.sess_accept);
0f113f3e 2531 case SSL_CTRL_SESS_ACCEPT_GOOD:
acce0557 2532 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_good);
0f113f3e 2533 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
acce0557 2534 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_renegotiate);
0f113f3e 2535 case SSL_CTRL_SESS_HIT:
acce0557 2536 return ssl_tsan_load(ctx, &ctx->stats.sess_hit);
0f113f3e 2537 case SSL_CTRL_SESS_CB_HIT:
acce0557 2538 return ssl_tsan_load(ctx, &ctx->stats.sess_cb_hit);
0f113f3e 2539 case SSL_CTRL_SESS_MISSES:
acce0557 2540 return ssl_tsan_load(ctx, &ctx->stats.sess_miss);
0f113f3e 2541 case SSL_CTRL_SESS_TIMEOUTS:
acce0557 2542 return ssl_tsan_load(ctx, &ctx->stats.sess_timeout);
0f113f3e 2543 case SSL_CTRL_SESS_CACHE_FULL:
acce0557 2544 return ssl_tsan_load(ctx, &ctx->stats.sess_cache_full);
0f113f3e
MC		 2545 case SSL_CTRL_MODE:
2546 return (ctx->mode |= larg);
2547 case SSL_CTRL_CLEAR_MODE:
2548 return (ctx->mode &= ~larg);
2549 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2550 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2551 return 0;
2552 ctx->max_send_fragment = larg;
d102d9df 2553 if (ctx->max_send_fragment < ctx->split_send_fragment)
bfb155c1 2554 ctx->split_send_fragment = ctx->max_send_fragment;
0f113f3e 2555 return 1;
d102d9df 2556 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
7ee8627f 2557 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
d102d9df
MC		 2558 return 0;
2559 ctx->split_send_fragment = larg;
2560 return 1;
2561 case SSL_CTRL_SET_MAX_PIPELINES:
2562 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2563 return 0;
2564 ctx->max_pipelines = larg;
07077415 2565 return 1;
0f113f3e
MC		 2566 case SSL_CTRL_CERT_FLAGS:
2567 return (ctx->cert->cert_flags |= larg);
2568 case SSL_CTRL_CLEAR_CERT_FLAGS:
2569 return (ctx->cert->cert_flags &= ~larg);
7946ab33 2570 case SSL_CTRL_SET_MIN_PROTO_VERSION:
c8feba72
BK		 2571 return ssl_check_allowed_versions(larg, ctx->max_proto_version)
2572 && ssl_set_version_bound(ctx->method->version, (int)larg,
2573 &ctx->min_proto_version);
3edabd3c
CH		 2574 case SSL_CTRL_GET_MIN_PROTO_VERSION:
2575 return ctx->min_proto_version;
7946ab33 2576 case SSL_CTRL_SET_MAX_PROTO_VERSION:
c8feba72
BK		 2577 return ssl_check_allowed_versions(ctx->min_proto_version, larg)
2578 && ssl_set_version_bound(ctx->method->version, (int)larg,
2579 &ctx->max_proto_version);
3edabd3c
CH		 2580 case SSL_CTRL_GET_MAX_PROTO_VERSION:
2581 return ctx->max_proto_version;
0f113f3e 2582 default:
26a7d938 2583 return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
0f113f3e
MC		 2584 }
2585}
2586
2587long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
2588{
2589 switch (cmd) {
2590 case SSL_CTRL_SET_MSG_CALLBACK:
2591 ctx->msg_callback = (void (*)
2592 (int write_p, int version, int content_type,
2593 const void *buf, size_t len, SSL *ssl,
2594 void *arg))(fp);
2595 return 1;
2596
2597 default:
26a7d938 2598 return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
0f113f3e
MC		 2599 }
2600}
d3442bc7 2601
ccd86b68 2602int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
0f113f3e 2603{
90d9e49a
DSH		 2604 if (a->id > b->id)
2605 return 1;
2606 if (a->id < b->id)
2607 return -1;
2608 return 0;
0f113f3e
MC		 2609}
2610
2611int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
2612 const SSL_CIPHER *const *bp)
2613{
90d9e49a
DSH		 2614 if ((*ap)->id > (*bp)->id)
2615 return 1;
2616 if ((*ap)->id < (*bp)->id)
2617 return -1;
2618 return 0;
0f113f3e 2619}
d02b48c6 2620
4f43d0e7 2621/** return a STACK of the ciphers available for the SSL and in order of
d02b48c6 2622 * preference */
0821bcd4 2623STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
0f113f3e
MC		 2624{
2625 if (s != NULL) {
2626 if (s->cipher_list != NULL) {
26a7d938 2627 return s->cipher_list;
0f113f3e 2628 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
26a7d938 2629 return s->ctx->cipher_list;
0f113f3e
MC		 2630 }
2631 }
26a7d938 2632 return NULL;
0f113f3e
MC		 2633}
2634
831eef2c
NM		 2635STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
2636{
eee2a6a7 2637 if ((s == NULL) || !s->server)
831eef2c 2638 return NULL;
eee2a6a7 2639 return s->peer_ciphers;
831eef2c
NM		 2640}
2641
8b8e5bed 2642STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
0f113f3e
MC		 2643{
2644 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
2645 int i;
1d0c08b4 2646
0f113f3e
MC		 2647 ciphers = SSL_get_ciphers(s);
2648 if (!ciphers)
2649 return NULL;
1d0c08b4
MC		 2650 if (!ssl_set_client_disabled(s))
2651 return NULL;
0f113f3e
MC		 2652 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
2653 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
8af91fd9 2654 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
0f113f3e
MC		 2655 if (!sk)
2656 sk = sk_SSL_CIPHER_new_null();
2657 if (!sk)
2658 return NULL;
2659 if (!sk_SSL_CIPHER_push(sk, c)) {
2660 sk_SSL_CIPHER_free(sk);
2661 return NULL;
2662 }
2663 }
2664 }
2665 return sk;
2666}
8b8e5bed 2667
4f43d0e7 2668/** return a STACK of the ciphers available for the SSL and in order of
d02b48c6 2669 * algorithm id */
f73e07cf 2670STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
0f113f3e
MC		 2671{
2672 if (s != NULL) {
2673 if (s->cipher_list_by_id != NULL) {
26a7d938 2674 return s->cipher_list_by_id;
0f113f3e 2675 } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
26a7d938 2676 return s->ctx->cipher_list_by_id;
0f113f3e
MC		 2677 }
2678 }
26a7d938 2679 return NULL;
0f113f3e 2680}
d02b48c6 2681
4f43d0e7 2682/** The old interface to get the same thing as SSL_get_ciphers() */
0f113f3e
MC		 2683const char *SSL_get_cipher_list(const SSL *s, int n)
2684{
4a640fb6 2685 const SSL_CIPHER *c;
0f113f3e
MC		 2686 STACK_OF(SSL_CIPHER) *sk;
2687
2688 if (s == NULL)
26a7d938 2689 return NULL;
0f113f3e
MC		 2690 sk = SSL_get_ciphers(s);
2691 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
26a7d938 2692 return NULL;
0f113f3e
MC		 2693 c = sk_SSL_CIPHER_value(sk, n);
2694 if (c == NULL)
26a7d938
K		 2695 return NULL;
2696 return c->name;
0f113f3e 2697}
d02b48c6 2698
9d5ac953
KY		 2699/** return a STACK of the ciphers available for the SSL_CTX and in order of
2700 * preference */
2701STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
2702{
2703 if (ctx != NULL)
2704 return ctx->cipher_list;
2705 return NULL;
2706}
2707
3c83c5ba
SR		 2708/*
2709 * Distinguish between ciphers controlled by set_ciphersuite() and
2710 * set_cipher_list() when counting.
2711 */
2712static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
2713{
2714 int i, num = 0;
2715 const SSL_CIPHER *c;
2716
2717 if (sk == NULL)
2718 return 0;
2719 for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
2720 c = sk_SSL_CIPHER_value(sk, i);
2721 if (c->min_tls >= TLS1_3_VERSION)
2722 continue;
2723 num++;
2724 }
2725 return num;
2726}
2727
25f923dd 2728/** specify the ciphers to be used by default by the SSL_CTX */
018e57c7 2729int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
0f113f3e
MC		 2730{
2731 STACK_OF(SSL_CIPHER) *sk;
2732
a68eee67 2733 sk = ssl_create_cipher_list(ctx, ctx->tls13_ciphersuites,
f865b081
MC		 2734 &ctx->cipher_list, &ctx->cipher_list_by_id, str,
2735 ctx->cert);
0f113f3e
MC		 2736 /*
2737 * ssl_create_cipher_list may return an empty stack if it was unable to
2738 * find a cipher matching the given rule string (for example if the rule
2739 * string specifies a cipher which has been disabled). This is not an
2740 * error as far as ssl_create_cipher_list is concerned, and hence
2741 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2742 */
2743 if (sk == NULL)
2744 return 0;
3c83c5ba 2745 else if (cipher_list_tls12_num(sk) == 0) {
6849b73c 2746 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
0f113f3e
MC		 2747 return 0;
2748 }
2749 return 1;
2750}
d02b48c6 2751
4f43d0e7 2752/** specify the ciphers to be used by the SSL */
0f113f3e
MC		 2753int SSL_set_cipher_list(SSL *s, const char *str)
2754{
2755 STACK_OF(SSL_CIPHER) *sk;
2756
a68eee67 2757 sk = ssl_create_cipher_list(s->ctx, s->tls13_ciphersuites,
f865b081
MC		 2758 &s->cipher_list, &s->cipher_list_by_id, str,
2759 s->cert);
0f113f3e
MC		 2760 /* see comment in SSL_CTX_set_cipher_list */
2761 if (sk == NULL)
2762 return 0;
3c83c5ba 2763 else if (cipher_list_tls12_num(sk) == 0) {
6849b73c 2764 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
0f113f3e
MC		 2765 return 0;
2766 }
2767 return 1;
2768}
d02b48c6 2769
a216df59 2770char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
0f113f3e
MC		 2771{
2772 char *p;
a216df59 2773 STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
4a640fb6 2774 const SSL_CIPHER *c;
0f113f3e
MC		 2775 int i;
2776
a216df59 2777 if (!s->server
eee2a6a7 2778 || s->peer_ciphers == NULL
a216df59 2779 || size < 2)
26a7d938 2780 return NULL;
0f113f3e
MC		 2781
2782 p = buf;
eee2a6a7 2783 clntsk = s->peer_ciphers;
a216df59
MC		 2784 srvrsk = SSL_get_ciphers(s);
2785 if (clntsk == NULL || srvrsk == NULL)
2786 return NULL;
0f113f3e 2787
a216df59 2788 if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
0f113f3e
MC		 2789 return NULL;
2790
a216df59 2791 for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
0f113f3e
MC		 2792 int n;
2793
a216df59
MC		 2794 c = sk_SSL_CIPHER_value(clntsk, i);
2795 if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
2796 continue;
2797
0f113f3e 2798 n = strlen(c->name);
a216df59 2799 if (n + 1 > size) {
0f113f3e
MC		 2800 if (p != buf)
2801 --p;
2802 *p = '\0';
2803 return buf;
2804 }
4cacc9d5 2805 strcpy(p, c->name);
0f113f3e
MC		 2806 p += n;
2807 *(p++) = ':';
a216df59 2808 size -= n + 1;
0f113f3e
MC		 2809 }
2810 p[-1] = '\0';
26a7d938 2811 return buf;
0f113f3e
MC		 2812}
2813
7955c1f1
MC		 2814/**
2815 * Return the requested servername (SNI) value. Note that the behaviour varies
2816 * depending on:
2817 * - whether this is called by the client or the server,
2818 * - if we are before or during/after the handshake,
2819 * - if a resumption or normal handshake is being attempted/has occurred
2820 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
2821 *
2822 * Note that only the host_name type is defined (RFC 3546).
ed3883d2 2823 */
f1fd4544 2824const char *SSL_get_servername(const SSL *s, const int type)
0f113f3e 2825{
7955c1f1
MC		 2826 /*
2827 * If we don't know if we are the client or the server yet then we assume
2828 * client.
2829 */
2830 int server = s->handshake_func == NULL ? 0 : s->server;
0f113f3e
MC		 2831 if (type != TLSEXT_NAMETYPE_host_name)
2832 return NULL;
a13c20f6 2833
7955c1f1
MC		 2834 if (server) {
2835 /**
2836 * Server side
2837 * In TLSv1.3 on the server SNI is not associated with the session
2838 * but in TLSv1.2 or below it is.
2839 *
2840 * Before the handshake:
2841 * - return NULL
2842 *
2843 * During/after the handshake (TLSv1.2 or below resumption occurred):
2844 * - If a servername was accepted by the server in the original
2845 * handshake then it will return that servername, or NULL otherwise.
2846 *
2847 * During/after the handshake (TLSv1.2 or below resumption did not occur):
2848 * - The function will return the servername requested by the client in
2849 * this handshake or NULL if none was requested.
2850 */
2851 if (s->hit && !SSL_IS_TLS13(s))
2852 return s->session->ext.hostname;
2853 } else {
2854 /**
2855 * Client side
2856 *
2857 * Before the handshake:
2858 * - If a servername has been set via a call to
2859 * SSL_set_tlsext_host_name() then it will return that servername
2860 * - If one has not been set, but a TLSv1.2 resumption is being
2861 * attempted and the session from the original handshake had a
2862 * servername accepted by the server then it will return that
2863 * servername
2864 * - Otherwise it returns NULL
2865 *
2866 * During/after the handshake (TLSv1.2 or below resumption occurred):
9f7505ab 2867 * - If the session from the original handshake had a servername accepted
7955c1f1
MC		 2868 * by the server then it will return that servername.
2869 * - Otherwise it returns the servername set via
2870 * SSL_set_tlsext_host_name() (or NULL if it was not called).
2871 *
2872 * During/after the handshake (TLSv1.2 or below resumption did not occur):
2873 * - It will return the servername set via SSL_set_tlsext_host_name()
2874 * (or NULL if it was not called).
2875 */
2876 if (SSL_in_before(s)) {
2877 if (s->ext.hostname == NULL
2878 && s->session != NULL
2879 && s->session->ssl_version != TLS1_3_VERSION)
2880 return s->session->ext.hostname;
2881 } else {
2882 if (!SSL_IS_TLS13(s) && s->hit && s->session->ext.hostname != NULL)
2883 return s->session->ext.hostname;
2884 }
2885 }
2886
328a0547 2887 return s->ext.hostname;
0f113f3e 2888}
ed3883d2 2889
f1fd4544 2890int SSL_get_servername_type(const SSL *s)
0f113f3e 2891{
7955c1f1 2892 if (SSL_get_servername(s, TLSEXT_NAMETYPE_host_name) != NULL)
0f113f3e
MC		 2893 return TLSEXT_NAMETYPE_host_name;
2894 return -1;
2895}
ee2ffc27 2896
0f113f3e
MC		 2897/*
2898 * SSL_select_next_proto implements the standard protocol selection. It is
ee2ffc27 2899 * expected that this function is called from the callback set by
0f113f3e
MC		 2900 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2901 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2902 * not included in the length. A byte string of length 0 is invalid. No byte
2903 * string may be truncated. The current, but experimental algorithm for
2904 * selecting the protocol is: 1) If the server doesn't support NPN then this
2905 * is indicated to the callback. In this case, the client application has to
2906 * abort the connection or have a default application level protocol. 2) If
2907 * the server supports NPN, but advertises an empty list then the client
f430ba31 2908 * selects the first protocol in its list, but indicates via the API that this
0f113f3e
MC		 2909 * fallback case was enacted. 3) Otherwise, the client finds the first
2910 * protocol in the server's list that it supports and selects this protocol.
2911 * This is because it's assumed that the server has better information about
2912 * which protocol a client should use. 4) If the client doesn't support any
2913 * of the server's advertised protocols, then this is treated the same as
2914 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2915 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
ee2ffc27 2916 */
0f113f3e
MC		 2917int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
2918 const unsigned char *server,
2919 unsigned int server_len,
a230b26e 2920 const unsigned char *client, unsigned int client_len)
0f113f3e
MC		 2921{
2922 unsigned int i, j;
2923 const unsigned char *result;
2924 int status = OPENSSL_NPN_UNSUPPORTED;
2925
2926 /*
2927 * For each protocol in server preference order, see if we support it.
2928 */
2929 for (i = 0; i < server_len;) {
2930 for (j = 0; j < client_len;) {
2931 if (server[i] == client[j] &&
2932 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
2933 /* We found a match */
2934 result = &server[i];
2935 status = OPENSSL_NPN_NEGOTIATED;
2936 goto found;
2937 }
2938 j += client[j];
2939 j++;
2940 }
2941 i += server[i];
2942 i++;
2943 }
2944
2945 /* There's no overlap between our protocols and the server's list. */
2946 result = client;
2947 status = OPENSSL_NPN_NO_OVERLAP;
2948
2949 found:
2950 *out = (unsigned char *)result + 1;
2951 *outlen = result[0];
2952 return status;
2953}
ee2ffc27 2954
e481f9b9 2955#ifndef OPENSSL_NO_NEXTPROTONEG
0f113f3e
MC		 2956/*
2957 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2958 * client's requested protocol for this connection and returns 0. If the
2959 * client didn't request any protocol, then *data is set to NULL. Note that
2960 * the client can request any protocol it chooses. The value returned from
2961 * this function need not be a member of the list of supported protocols
ee2ffc27
BL		 2962 * provided by the callback.
2963 */
0f113f3e
MC		 2964void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
2965 unsigned *len)
2966{
aff8c126 2967 *data = s->ext.npn;
12a765a5 2968 if (*data == NULL) {
0f113f3e
MC		 2969 *len = 0;
2970 } else {
aff8c126 2971 *len = (unsigned int)s->ext.npn_len;
0f113f3e
MC		 2972 }
2973}
2974
2975/*
aff8c126 2976 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
0f113f3e
MC		 2977 * a TLS server needs a list of supported protocols for Next Protocol
2978 * Negotiation. The returned list must be in wire format. The list is
2979 * returned by setting |out| to point to it and |outlen| to its length. This
2980 * memory will not be modified, but one should assume that the SSL* keeps a
2981 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2982 * wishes to advertise. Otherwise, no such extension will be included in the
2983 * ServerHello.
2984 */
aff8c126 2985void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
8cbfcc70 2986 SSL_CTX_npn_advertised_cb_func cb,
aff8c126 2987 void *arg)
0f113f3e 2988{
aff8c126
RS		 2989 ctx->ext.npn_advertised_cb = cb;
2990 ctx->ext.npn_advertised_cb_arg = arg;
0f113f3e
MC		 2991}
2992
2993/*
2994 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
ee2ffc27
BL		 2995 * client needs to select a protocol from the server's provided list. |out|
2996 * must be set to point to the selected protocol (which may be within |in|).
0f113f3e
MC		 2997 * The length of the protocol name must be written into |outlen|. The
2998 * server's advertised protocols are provided in |in| and |inlen|. The
2999 * callback can assume that |in| is syntactically valid. The client must
3000 * select a protocol. It is fatal to the connection if this callback returns
3001 * a value other than SSL_TLSEXT_ERR_OK.
ee2ffc27 3002 */
aff8c126 3003void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
8cbfcc70 3004 SSL_CTX_npn_select_cb_func cb,
aff8c126 3005 void *arg)
0f113f3e 3006{
aff8c126
RS		 3007 ctx->ext.npn_select_cb = cb;
3008 ctx->ext.npn_select_cb_arg = arg;
0f113f3e 3009}
e481f9b9 3010#endif
a398f821 3011
feba11cf
TS		 3012static int alpn_value_ok(const unsigned char *protos, unsigned int protos_len)
3013{
3014 unsigned int idx;
3015
3016 if (protos_len < 2 || protos == NULL)
3017 return 0;
3018
3019 for (idx = 0; idx < protos_len; idx += protos[idx] + 1) {
3020 if (protos[idx] == 0)
3021 return 0;
3022 }
3023 return idx == protos_len;
3024}
0f113f3e
MC		 3025/*
3026 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
6f017a8f 3027 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
0f113f3e
MC		 3028 * length-prefixed strings). Returns 0 on success.
3029 */
3030int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
817cd0d5 3031 unsigned int protos_len)
0f113f3e 3032{
feba11cf
TS		 3033 unsigned char *alpn;
3034
3035 if (protos_len == 0 || protos == NULL) {
3036 OPENSSL_free(ctx->ext.alpn);
3037 ctx->ext.alpn = NULL;
39a14059 3038 ctx->ext.alpn_len = 0;
feba11cf
TS		 3039 return 0;
3040 }
3041 /* Not valid per RFC */
3042 if (!alpn_value_ok(protos, protos_len))
3043 return 1;
3044
3045 alpn = OPENSSL_memdup(protos, protos_len);
3046 if (alpn == NULL) {
6849b73c 3047 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
0f113f3e 3048 return 1;
72e9be3d 3049 }
feba11cf
TS		 3050 OPENSSL_free(ctx->ext.alpn);
3051 ctx->ext.alpn = alpn;
aff8c126 3052 ctx->ext.alpn_len = protos_len;
0f113f3e
MC		 3053
3054 return 0;
3055}
3056
3057/*
3058 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
6f017a8f 3059 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
0f113f3e
MC		 3060 * length-prefixed strings). Returns 0 on success.
3061 */
3062int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
817cd0d5 3063 unsigned int protos_len)
0f113f3e 3064{
feba11cf
TS		 3065 unsigned char *alpn;
3066
3067 if (protos_len == 0 || protos == NULL) {
3068 OPENSSL_free(ssl->ext.alpn);
3069 ssl->ext.alpn = NULL;
39a14059 3070 ssl->ext.alpn_len = 0;
feba11cf
TS		 3071 return 0;
3072 }
3073 /* Not valid per RFC */
3074 if (!alpn_value_ok(protos, protos_len))
3075 return 1;
3076
3077 alpn = OPENSSL_memdup(protos, protos_len);
3078 if (alpn == NULL) {
6849b73c 3079 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
0f113f3e 3080 return 1;
72e9be3d 3081 }
feba11cf
TS		 3082 OPENSSL_free(ssl->ext.alpn);
3083 ssl->ext.alpn = alpn;
aff8c126 3084 ssl->ext.alpn_len = protos_len;
0f113f3e
MC		 3085
3086 return 0;
3087}
3088
3089/*
3090 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3091 * called during ClientHello processing in order to select an ALPN protocol
3092 * from the client's list of offered protocols.
3093 */
3094void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
8cbfcc70
RS		 3095 SSL_CTX_alpn_select_cb_func cb,
3096 void *arg)
0f113f3e 3097{
aff8c126
RS		 3098 ctx->ext.alpn_select_cb = cb;
3099 ctx->ext.alpn_select_cb_arg = arg;
0f113f3e
MC		 3100}
3101
3102/*
69687aa8
F		 3103 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3104 * On return it sets |*data| to point to |*len| bytes of protocol name
0f113f3e
MC		 3105 * (not including the leading length-prefix byte). If the server didn't
3106 * respond with a negotiated protocol then |*len| will be zero.
3107 */
6f017a8f 3108void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
817cd0d5 3109 unsigned int *len)
0f113f3e 3110{
555cbb32 3111 *data = ssl->s3.alpn_selected;
0f113f3e
MC		 3112 if (*data == NULL)
3113 *len = 0;
3114 else
555cbb32 3115 *len = (unsigned int)ssl->s3.alpn_selected_len;
0f113f3e
MC		 3116}
3117
74b4b494 3118int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
0f113f3e 3119 const char *label, size_t llen,
23cec1f4 3120 const unsigned char *context, size_t contextlen,
0f113f3e
MC		 3121 int use_context)
3122{
dffeec1c
TM		 3123 if (s->session == NULL
3124 || (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER))
0f113f3e 3125 return -1;
e0af0405 3126
0f113f3e 3127 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
23cec1f4
MC		 3128 llen, context,
3129 contextlen, use_context);
0f113f3e 3130}
e0af0405 3131
b38ede80
TT		 3132int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
3133 const char *label, size_t llen,
3134 const unsigned char *context,
3135 size_t contextlen)
3136{
3137 if (s->version != TLS1_3_VERSION)
3138 return 0;
3139
3140 return tls13_export_keying_material_early(s, out, olen, label, llen,
3141 context, contextlen);
3142}
3143
3c1d6bbc 3144static unsigned long ssl_session_hash(const SSL_SESSION *a)
0f113f3e 3145{
bd5d27c1 3146 const unsigned char *session_id = a->session_id;
0f113f3e 3147 unsigned long l;
bd5d27c1
DB		 3148 unsigned char tmp_storage[4];
3149
3150 if (a->session_id_length < sizeof(tmp_storage)) {
3151 memset(tmp_storage, 0, sizeof(tmp_storage));
3152 memcpy(tmp_storage, a->session_id, a->session_id_length);
3153 session_id = tmp_storage;
3154 }
0f113f3e
MC		 3155
3156 l = (unsigned long)
bd5d27c1
DB		 3157 ((unsigned long)session_id[0]) |
3158 ((unsigned long)session_id[1] << 8L) |
3159 ((unsigned long)session_id[2] << 16L) |
3160 ((unsigned long)session_id[3] << 24L);
26a7d938 3161 return l;
0f113f3e
MC		 3162}
3163
3164/*
3165 * NB: If this function (or indeed the hash function which uses a sort of
dc644fe2 3166 * coarser function than this one) is changed, ensure
0f113f3e
MC		 3167 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3168 * being able to construct an SSL_SESSION that will collide with any existing
3169 * session with a matching session ID.
3170 */
3171static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
3172{
3173 if (a->ssl_version != b->ssl_version)
208fb891 3174 return 1;
0f113f3e 3175 if (a->session_id_length != b->session_id_length)
208fb891 3176 return 1;
26a7d938 3177 return memcmp(a->session_id, b->session_id, a->session_id_length);
0f113f3e
MC		 3178}
3179
3180/*
3181 * These wrapper functions should remain rather than redeclaring
d0fa136c 3182 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
0f113f3e
MC		 3183 * variable. The reason is that the functions aren't static, they're exposed
3184 * via ssl.h.
3185 */
97b17195 3186
b4250010 3187SSL_CTX *SSL_CTX_new_ex(OSSL_LIB_CTX *libctx, const char *propq,
d8652be0 3188 const SSL_METHOD *meth)
0f113f3e
MC		 3189{
3190 SSL_CTX *ret = NULL;
3191
3192 if (meth == NULL) {
6849b73c 3193 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_METHOD_PASSED);
26a7d938 3194 return NULL;
0f113f3e
MC		 3195 }
3196
0fc32b07
MC		 3197 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
3198 return NULL;
7fa792d1 3199
0f113f3e 3200 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
6849b73c 3201 ERR_raise(ERR_LIB_SSL, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
0f113f3e
MC		 3202 goto err;
3203 }
b51bce94 3204 ret = OPENSSL_zalloc(sizeof(*ret));
0f113f3e
MC		 3205 if (ret == NULL)
3206 goto err;
3207
045a8930
F		 3208 /* Init the reference counting before any call to SSL_CTX_free */
3209 ret->references = 1;
3210 ret->lock = CRYPTO_THREAD_lock_new();
3211 if (ret->lock == NULL) {
3212 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
3213 OPENSSL_free(ret);
3214 return NULL;
3215 }
3216
acce0557
P		 3217#ifdef TSAN_REQUIRES_LOCKING
3218 ret->tsan_lock = CRYPTO_THREAD_lock_new();
3219 if (ret->tsan_lock == NULL) {
3220 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
3221 goto err;
3222 }
3223#endif
3224
ba18627e
MC		 3225 ret->libctx = libctx;
3226 if (propq != NULL) {
3227 ret->propq = OPENSSL_strdup(propq);
3228 if (ret->propq == NULL)
3229 goto err;
3230 }
3231
0f113f3e 3232 ret->method = meth;
7946ab33
KR		 3233 ret->min_proto_version = 0;
3234 ret->max_proto_version = 0;
693cf80c 3235 ret->mode = SSL_MODE_AUTO_RETRY;
0f113f3e
MC		 3236 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
3237 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
64b25758 3238 /* We take the system default. */
0f113f3e 3239 ret->session_timeout = meth->get_timeout();
0f113f3e 3240 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
0f113f3e 3241 ret->verify_mode = SSL_VERIFY_NONE;
0f113f3e
MC		 3242 if ((ret->cert = ssl_cert_new()) == NULL)
3243 goto err;
3244
62d0577e 3245 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
0f113f3e
MC		 3246 if (ret->sessions == NULL)
3247 goto err;
3248 ret->cert_store = X509_STORE_new();
3249 if (ret->cert_store == NULL)
3250 goto err;
ed29e82a 3251#ifndef OPENSSL_NO_CT
d8652be0 3252 ret->ctlog_store = CTLOG_STORE_new_ex(libctx, propq);
ed29e82a
RP		 3253 if (ret->ctlog_store == NULL)
3254 goto err;
3255#endif
f865b081 3256
c8f6c28a
MC		 3257 /* initialize cipher/digest methods table */
3258 if (!ssl_load_ciphers(ret))
075b1f2f 3259 goto err2;
263ff2c9
MC		 3260 /* initialise sig algs */
3261 if (!ssl_setup_sig_algs(ret))
3262 goto err2;
3263
c8f6c28a 3264
9d2d857f
MC		 3265 if (!ssl_load_groups(ret))
3266 goto err2;
3267
5d120511 3268 if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites()))
f865b081
MC		 3269 goto err;
3270
a68eee67 3271 if (!ssl_create_cipher_list(ret,
f865b081 3272 ret->tls13_ciphersuites,
a230b26e 3273 &ret->cipher_list, &ret->cipher_list_by_id,
5d120511 3274 OSSL_default_cipher_list(), ret->cert)
a230b26e 3275 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
6849b73c 3276 ERR_raise(ERR_LIB_SSL, SSL_R_LIBRARY_HAS_NO_CIPHERS);
0f113f3e
MC		 3277 goto err2;
3278 }
3279
3280 ret->param = X509_VERIFY_PARAM_new();
a71edf3b 3281 if (ret->param == NULL)
0f113f3e
MC		 3282 goto err;
3283
c8f6c28a
MC		 3284 /*
3285 * If these aren't available from the provider we'll get NULL returns.
3286 * That's fine but will cause errors later if SSLv3 is negotiated
3287 */
3288 ret->md5 = ssl_evp_md_fetch(libctx, NID_md5, propq);
3289 ret->sha1 = ssl_evp_md_fetch(libctx, NID_sha1, propq);
0f113f3e 3290
fa7c2637 3291 if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL)
0f113f3e
MC		 3292 goto err;
3293
98732979
MC		 3294 if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL)
3295 goto err;
3296
25a807bc
F		 3297 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data))
3298 goto err;
0f113f3e 3299
4bfb96f2
TS		 3300 if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
3301 goto err;
3302
0f113f3e
MC		 3303 /* No compression for DTLS */
3304 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
3305 ret->comp_methods = SSL_COMP_get_compression_methods();
3306
3307 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
d102d9df 3308 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
566dda07 3309
4e2e1ec9 3310 /* Setup RFC5077 ticket keys */
8f21260b 3311 if ((RAND_bytes_ex(libctx, ret->ext.tick_key_name,
0f8815aa 3312 sizeof(ret->ext.tick_key_name), 0) <= 0)
8f21260b 3313 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_hmac_key,
0f8815aa 3314 sizeof(ret->ext.secure->tick_hmac_key), 0) <= 0)
8f21260b 3315 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_aes_key,
0f8815aa 3316 sizeof(ret->ext.secure->tick_aes_key), 0) <= 0))
0f113f3e 3317 ret->options |= SSL_OP_NO_TICKET;
6434abbf 3318
8f21260b 3319 if (RAND_priv_bytes_ex(libctx, ret->ext.cookie_hmac_key,
0f8815aa 3320 sizeof(ret->ext.cookie_hmac_key), 0) <= 0)
43054d3d
MC		 3321 goto err;
3322
edc032b5 3323#ifndef OPENSSL_NO_SRP
76cb077f 3324 if (!ssl_ctx_srp_ctx_init_intern(ret))
69f68237 3325 goto err;
edc032b5 3326#endif
4db9677b 3327#ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 3328# ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3329# define eng_strx(x) #x
3330# define eng_str(x) eng_strx(x)
3331 /* Use specific client engine automatically... ignore errors */
3332 {
3333 ENGINE *eng;
3334 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3335 if (!eng) {
3336 ERR_clear_error();
3337 ENGINE_load_builtin_engines();
3338 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3339 }
3340 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
3341 ERR_clear_error();
3342 }
3343# endif
3344#endif
dc5744cb
EK		 3345 /*
3346 * Disable compression by default to prevent CRIME. Applications can
3347 * re-enable compression by configuring
3348 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
a5816a5a
MC		 3349 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3350 * middlebox compatibility by default. This may be disabled by default in
3351 * a later OpenSSL version.
dc5744cb 3352 */
a5816a5a 3353 ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
0f113f3e 3354
aff8c126 3355 ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
ba261f71 3356
bfa9a9af 3357 /*
c39e4048
BK		 3358 * We cannot usefully set a default max_early_data here (which gets
3359 * propagated in SSL_new(), for the following reason: setting the
3360 * SSL field causes tls_construct_stoc_early_data() to tell the
3361 * client that early data will be accepted when constructing a TLS 1.3
3362 * session ticket, and the client will accordingly send us early data
3363 * when using that ticket (if the client has early data to send).
3364 * However, in order for the early data to actually be consumed by
3365 * the application, the application must also have calls to
3366 * SSL_read_early_data(); otherwise we'll just skip past the early data
3367 * and ignore it. So, since the application must add calls to
3368 * SSL_read_early_data(), we also require them to add
3369 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3370 * eliminating the bandwidth-wasting early data in the case described
3371 * above.
bfa9a9af 3372 */
c39e4048 3373 ret->max_early_data = 0;
bfa9a9af 3374
4e8548e8
MC		 3375 /*
3376 * Default recv_max_early_data is a fully loaded single record. Could be
3377 * split across multiple records in practice. We set this differently to
3378 * max_early_data so that, in the default case, we do not advertise any
3379 * support for early_data, but if a client were to send us some (e.g.
3380 * because of an old, stale ticket) then we will tolerate it and skip over
3381 * it.
3382 */
3383 ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
3384
36ff232c
MC		 3385 /* By default we send two session tickets automatically in TLSv1.3 */
3386 ret->num_tickets = 2;
9d0a8bb7 3387
8a5ed9dc
TM		 3388 ssl_ctx_system_config(ret);
3389
16203f7b 3390 return ret;
0f113f3e 3391 err:
6849b73c 3392 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
0f113f3e 3393 err2:
e0e920b1 3394 SSL_CTX_free(ret);
16203f7b 3395 return NULL;
0f113f3e 3396}
d02b48c6 3397
ba18627e
MC		 3398SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
3399{
d8652be0 3400 return SSL_CTX_new_ex(NULL, NULL, meth);
ba18627e
MC		 3401}
3402
c5ebfcab 3403int SSL_CTX_up_ref(SSL_CTX *ctx)
a18a31e4 3404{
16203f7b 3405 int i;
c5ebfcab 3406
2f545ae4 3407 if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0)
c5ebfcab
F		 3408 return 0;
3409
3410 REF_PRINT_COUNT("SSL_CTX", ctx);
3411 REF_ASSERT_ISNT(i < 2);
3412 return ((i > 1) ? 1 : 0);
a18a31e4
MC		 3413}
3414
4f43d0e7 3415void SSL_CTX_free(SSL_CTX *a)
0f113f3e
MC		 3416{
3417 int i;
9d2d857f 3418 size_t j;
d02b48c6 3419
0f113f3e
MC		 3420 if (a == NULL)
3421 return;
d02b48c6 3422
2f545ae4 3423 CRYPTO_DOWN_REF(&a->references, &i, a->lock);
f3f1cf84 3424 REF_PRINT_COUNT("SSL_CTX", a);
0f113f3e
MC		 3425 if (i > 0)
3426 return;
f3f1cf84 3427 REF_ASSERT_ISNT(i < 0);
0f113f3e 3428
222561fe 3429 X509_VERIFY_PARAM_free(a->param);
919ba009 3430 dane_ctx_final(&a->dane);
0f113f3e
MC		 3431
3432 /*
3433 * Free internal session cache. However: the remove_cb() may reference
3434 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3435 * after the sessions were flushed.
3436 * As the ex_data handling routines might also touch the session cache,
3437 * the most secure solution seems to be: empty (flush) the cache, then
3438 * free ex_data, then finally free the cache.
3439 * (See ticket [openssl.org #212].)
3440 */
3441 if (a->sessions != NULL)
3442 SSL_CTX_flush_sessions(a, 0);
3443
3444 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
25aaa98a 3445 lh_SSL_SESSION_free(a->sessions);
222561fe 3446 X509_STORE_free(a->cert_store);
ed29e82a
RP		 3447#ifndef OPENSSL_NO_CT
3448 CTLOG_STORE_free(a->ctlog_store);
3449#endif
25aaa98a
RS		 3450 sk_SSL_CIPHER_free(a->cipher_list);
3451 sk_SSL_CIPHER_free(a->cipher_list_by_id);
f865b081 3452 sk_SSL_CIPHER_free(a->tls13_ciphersuites);
e0e920b1 3453 ssl_cert_free(a->cert);
fa7c2637 3454 sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
98732979 3455 sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
79b2a2f2 3456 OSSL_STACK_OF_X509_free(a->extra_certs);
0f113f3e 3457 a->comp_methods = NULL;
e783bae2 3458#ifndef OPENSSL_NO_SRTP
25aaa98a 3459 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
e783bae2 3460#endif
edc032b5 3461#ifndef OPENSSL_NO_SRP
76cb077f 3462 ssl_ctx_srp_ctx_free_intern(a);
edc032b5 3463#endif
bdfe932d 3464#ifndef OPENSSL_NO_ENGINE
301fcb28 3465 tls_engine_finish(a->client_cert_engine);
ddac1974 3466#endif
8671b898 3467
aff8c126 3468 OPENSSL_free(a->ext.ecpointformats);
187753e0 3469 OPENSSL_free(a->ext.supportedgroups);
ddf8f1ce 3470 OPENSSL_free(a->ext.supported_groups_default);
aff8c126 3471 OPENSSL_free(a->ext.alpn);
4bfb96f2 3472 OPENSSL_secure_free(a->ext.secure);
8671b898 3473
c8f6c28a
MC		 3474 ssl_evp_md_free(a->md5);
3475 ssl_evp_md_free(a->sha1);
3476
9d2d857f
MC		 3477 for (j = 0; j < SSL_ENC_NUM_IDX; j++)
3478 ssl_evp_cipher_free(a->ssl_cipher_methods[j]);
3479 for (j = 0; j < SSL_MD_NUM_IDX; j++)
3480 ssl_evp_md_free(a->ssl_digest_methods[j]);
3481 for (j = 0; j < a->group_list_len; j++) {
3482 OPENSSL_free(a->group_list[j].tlsname);
3483 OPENSSL_free(a->group_list[j].realname);
3484 OPENSSL_free(a->group_list[j].algorithm);
3485 }
3486 OPENSSL_free(a->group_list);
c8f6c28a 3487
263ff2c9
MC		 3488 OPENSSL_free(a->sigalg_lookup_cache);
3489
16203f7b 3490 CRYPTO_THREAD_lock_free(a->lock);
acce0557
P		 3491#ifdef TSAN_REQUIRES_LOCKING
3492 CRYPTO_THREAD_lock_free(a->tsan_lock);
3493#endif
16203f7b 3494
ba18627e
MC		 3495 OPENSSL_free(a->propq);
3496
0f113f3e
MC		 3497 OPENSSL_free(a);
3498}
d02b48c6 3499
3ae76679 3500void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
0f113f3e
MC		 3501{
3502 ctx->default_passwd_callback = cb;
3503}
3504
3505void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
3506{
3507 ctx->default_passwd_callback_userdata = u;
3508}
3509
0c452abc
CH		 3510pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
3511{
3512 return ctx->default_passwd_callback;
3513}
3514
3515void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
3516{
3517 return ctx->default_passwd_callback_userdata;
3518}
3519
a974e64a
MC		 3520void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
3521{
3522 s->default_passwd_callback = cb;
3523}
3524
3525void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
3526{
3527 s->default_passwd_callback_userdata = u;
3528}
3529
0c452abc
CH		 3530pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
3531{
3532 return s->default_passwd_callback;
3533}
3534
3535void *SSL_get_default_passwd_cb_userdata(SSL *s)
3536{
3537 return s->default_passwd_callback_userdata;
3538}
3539
0f113f3e
MC		 3540void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
3541 int (*cb) (X509_STORE_CTX *, void *),
3542 void *arg)
3543{
3544 ctx->app_verify_callback = cb;
3545 ctx->app_verify_arg = arg;
3546}
3547
3548void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
3549 int (*cb) (int, X509_STORE_CTX *))
3550{
3551 ctx->verify_mode = mode;
3552 ctx->default_verify_callback = cb;
3553}
3554
3555void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
3556{
3557 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
3558}
3559
a230b26e 3560void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
0f113f3e
MC		 3561{
3562 ssl_cert_set_cert_cb(c->cert, cb, arg);
3563}
3564
3565void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
3566{
3567 ssl_cert_set_cert_cb(s->cert, cb, arg);
3568}
18d71588 3569
2cf28d61 3570void ssl_set_masks(SSL *s)
0f113f3e 3571{
6383d316 3572 CERT *c = s->cert;
555cbb32 3573 uint32_t *pvalid = s->s3.tmp.valid_flags;
bc71f910 3574 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
361a1191 3575 unsigned long mask_k, mask_a;
361a1191 3576 int have_ecc_cert, ecdsa_ok;
462f4f4b 3577
0f113f3e
MC		 3578 if (c == NULL)
3579 return;
d02b48c6 3580
13c45372 3581 dh_tmp = (c->dh_tmp != NULL
13c45372 3582 || c->dh_tmp_cb != NULL
13c45372 3583 || c->dh_tmp_auto);
d02b48c6 3584
d0ff28f8 3585 rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
38e8f3cd
DSH		 3586 rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
3587 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
6383d316 3588 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
0f113f3e
MC		 3589 mask_k = 0;
3590 mask_a = 0;
0e1dba93 3591
77359d22
RL		 3592 OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
3593 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
0f113f3e 3594
2a9b9654 3595#ifndef OPENSSL_NO_GOST
4020c0b3 3596 if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
5a5530a2 3597 mask_k |= SSL_kGOST | SSL_kGOST18;
e44380a9
DB		 3598 mask_a |= SSL_aGOST12;
3599 }
4020c0b3 3600 if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
5a5530a2 3601 mask_k |= SSL_kGOST | SSL_kGOST18;
e44380a9
DB		 3602 mask_a |= SSL_aGOST12;
3603 }
4020c0b3 3604 if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
0f113f3e
MC		 3605 mask_k |= SSL_kGOST;
3606 mask_a |= SSL_aGOST01;
3607 }
2a9b9654 3608#endif
0f113f3e 3609
361a1191 3610 if (rsa_enc)
0f113f3e 3611 mask_k |= SSL_kRSA;
d02b48c6 3612
0f113f3e
MC		 3613 if (dh_tmp)
3614 mask_k |= SSL_kDHE;
d02b48c6 3615
6aaa29fb
DSH		 3616 /*
3617 * If we only have an RSA-PSS certificate allow RSA authentication
3618 * if TLS 1.2 and peer supports it.
3619 */
3620
3621 if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
3622 && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
3623 && TLS1_get_version(s) == TLS1_2_VERSION))
0f113f3e 3624 mask_a |= SSL_aRSA;
d02b48c6 3625
0f113f3e
MC		 3626 if (dsa_sign) {
3627 mask_a |= SSL_aDSS;
0f113f3e 3628 }
d02b48c6 3629
0f113f3e 3630 mask_a |= SSL_aNULL;
d02b48c6 3631
0f113f3e
MC		 3632 /*
3633 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
3634 * depending on the key usage extension.
3635 */
0f113f3e 3636 if (have_ecc_cert) {
a8d8e06b 3637 uint32_t ex_kusage;
4020c0b3 3638 ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
a8d8e06b 3639 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
6383d316 3640 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
0f113f3e 3641 ecdsa_ok = 0;
c7c46256 3642 if (ecdsa_ok)
0f113f3e 3643 mask_a |= SSL_aECDSA;
0f113f3e 3644 }
b2021556
DSH		 3645 /* Allow Ed25519 for TLS 1.2 if peer supports it */
3646 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
3647 && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
3648 && TLS1_get_version(s) == TLS1_2_VERSION)
3649 mask_a |= SSL_aECDSA;
0e1d6ecf
MC		 3650
3651 /* Allow Ed448 for TLS 1.2 if peer supports it */
3652 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
3653 && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
3654 && TLS1_get_version(s) == TLS1_2_VERSION)
3655 mask_a |= SSL_aECDSA;
ea262260 3656
fe6ef247 3657 mask_k |= SSL_kECDHE;
ddac1974
NL		 3658
3659#ifndef OPENSSL_NO_PSK
0f113f3e
MC		 3660 mask_k |= SSL_kPSK;
3661 mask_a |= SSL_aPSK;
526f94ad
DSH		 3662 if (mask_k & SSL_kRSA)
3663 mask_k |= SSL_kRSAPSK;
3664 if (mask_k & SSL_kDHE)
3665 mask_k |= SSL_kDHEPSK;
3666 if (mask_k & SSL_kECDHE)
3667 mask_k |= SSL_kECDHEPSK;
ddac1974
NL		 3668#endif
3669
555cbb32
TS		 3670 s->s3.tmp.mask_k = mask_k;
3671 s->s3.tmp.mask_a = mask_a;
0f113f3e 3672}
d02b48c6 3673
a2f9200f 3674int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
0f113f3e 3675{
555cbb32 3676 if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
0f113f3e 3677 /* key usage, if present, must allow signing */
ce0c1f2b 3678 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
6849b73c 3679 ERR_raise(ERR_LIB_SSL, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
0f113f3e
MC		 3680 return 0;
3681 }
3682 }
0f113f3e
MC		 3683 return 1; /* all checks are ok */
3684}
ea262260 3685
a398f821 3686int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
0f113f3e
MC		 3687 size_t *serverinfo_length)
3688{
555cbb32 3689 CERT_PKEY *cpk = s->s3.tmp.cert;
0f113f3e
MC		 3690 *serverinfo_length = 0;
3691
a497cf25 3692 if (cpk == NULL || cpk->serverinfo == NULL)
0f113f3e
MC		 3693 return 0;
3694
a497cf25
DSH		 3695 *serverinfo = cpk->serverinfo;
3696 *serverinfo_length = cpk->serverinfo_length;
0f113f3e
MC		 3697 return 1;
3698}
0f113f3e
MC		 3699
3700void ssl_update_cache(SSL *s, int mode)
3701{
3702 int i;
3703
3704 /*
3705 * If the session_id_length is 0, we are not supposed to cache it, and it
3706 * would be rather hard to do anyway :-)
3707 */
3708 if (s->session->session_id_length == 0)
3709 return;
3710
d316cdcf
BK		 3711 /*
3712 * If sid_ctx_length is 0 there is no specific application context
3713 * associated with this session, so when we try to resume it and
c4fa1f7f
BK		 3714 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
3715 * indication that this is actually a session for the proper application
3716 * context, and the *handshake* will fail, not just the resumption attempt.
3717 * Do not cache (on the server) these sessions that are not resumable
3718 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
d316cdcf 3719 */
c4fa1f7f 3720 if (s->server && s->session->sid_ctx_length == 0
d316cdcf
BK		 3721 && (s->verify_mode & SSL_VERIFY_PEER) != 0)
3722 return;
3723
0f113f3e 3724 i = s->session_ctx->session_cache_mode;
5d61491c 3725 if ((i & mode) != 0
ee94ec2e
MC		 3726 && (!s->hit || SSL_IS_TLS13(s))) {
3727 /*
3728 * Add the session to the internal cache. In server side TLSv1.3 we
6cc0b3c2
MC		 3729 * normally don't do this because by default it's a full stateless ticket
3730 * with only a dummy session id so there is no reason to cache it,
3731 * unless:
ee94ec2e
MC		 3732 * - we are doing early_data, in which case we cache so that we can
3733 * detect replays
3734 * - the application has set a remove_session_cb so needs to know about
3735 * session timeout events
6cc0b3c2 3736 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
ee94ec2e
MC		 3737 */
3738 if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
3739 && (!SSL_IS_TLS13(s)
3740 || !s->server
5d263fb7
MC		 3741 || (s->max_early_data > 0
3742 && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
6cc0b3c2
MC		 3743 || s->session_ctx->remove_session_cb != NULL
3744 || (s->options & SSL_OP_NO_TICKET) != 0))
ee94ec2e
MC		 3745 SSL_CTX_add_session(s->session_ctx, s->session);
3746
3747 /*
3748 * Add the session to the external cache. We do this even in server side
3749 * TLSv1.3 without early data because some applications just want to
3750 * know about the creation of a session and aren't doing a full cache.
3751 */
3752 if (s->session_ctx->new_session_cb != NULL) {
3753 SSL_SESSION_up_ref(s->session);
3754 if (!s->session_ctx->new_session_cb(s, s->session))
3755 SSL_SESSION_free(s->session);
3756 }
0f113f3e
MC		 3757 }
3758
3759 /* auto flush every 255 connections */
3760 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
9ef9088c 3761 TSAN_QUALIFIER int *stat;
acce0557 3762
1fcb4e4d
BK		 3763 if (mode & SSL_SESS_CACHE_CLIENT)
3764 stat = &s->session_ctx->stats.sess_connect_good;
3765 else
3766 stat = &s->session_ctx->stats.sess_accept_good;
acce0557 3767 if ((ssl_tsan_load(s->session_ctx, stat) & 0xff) == 0xff)
0f113f3e 3768 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
0f113f3e
MC		 3769 }
3770}
d02b48c6 3771
3499327b 3772const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
0f113f3e
MC		 3773{
3774 return ctx->method;
3775}
ba168244 3776
3499327b 3777const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
0f113f3e 3778{
26a7d938 3779 return s->method;
0f113f3e 3780}
d02b48c6 3781
4ebb342f 3782int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
0f113f3e 3783{
0f113f3e
MC		 3784 int ret = 1;
3785
3786 if (s->method != meth) {
919ba009 3787 const SSL_METHOD *sm = s->method;
a230b26e 3788 int (*hf) (SSL *) = s->handshake_func;
0f113f3e 3789
919ba009 3790 if (sm->version == meth->version)
0f113f3e
MC		 3791 s->method = meth;
3792 else {
919ba009 3793 sm->ssl_free(s);
0f113f3e
MC		 3794 s->method = meth;
3795 ret = s->method->ssl_new(s);
3796 }
3797
919ba009 3798 if (hf == sm->ssl_connect)
0f113f3e 3799 s->handshake_func = meth->ssl_connect;
919ba009 3800 else if (hf == sm->ssl_accept)
0f113f3e
MC		 3801 s->handshake_func = meth->ssl_accept;
3802 }
26a7d938 3803 return ret;
0f113f3e
MC		 3804}
3805
3806int SSL_get_error(const SSL *s, int i)
3807{
3808 int reason;
3809 unsigned long l;
3810 BIO *bio;
3811
3812 if (i > 0)
26a7d938 3813 return SSL_ERROR_NONE;
0f113f3e
MC		 3814
3815 /*
3816 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3817 * where we do encode the error
3818 */
3819 if ((l = ERR_peek_error()) != 0) {
3820 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
26a7d938 3821 return SSL_ERROR_SYSCALL;
0f113f3e 3822 else
26a7d938 3823 return SSL_ERROR_SSL;
0f113f3e
MC		 3824 }
3825
8051ab2b
MC		 3826 if (SSL_want_read(s)) {
3827 bio = SSL_get_rbio(s);
3828 if (BIO_should_read(bio))
26a7d938 3829 return SSL_ERROR_WANT_READ;
8051ab2b
MC		 3830 else if (BIO_should_write(bio))
3831 /*
3832 * This one doesn't make too much sense ... We never try to write
3833 * to the rbio, and an application program where rbio and wbio
3834 * are separate couldn't even know what it should wait for.
3835 * However if we ever set s->rwstate incorrectly (so that we have
3836 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3837 * wbio *are* the same, this test works around that bug; so it
3838 * might be safer to keep it.
3839 */
26a7d938 3840 return SSL_ERROR_WANT_WRITE;
8051ab2b
MC		 3841 else if (BIO_should_io_special(bio)) {
3842 reason = BIO_get_retry_reason(bio);
3843 if (reason == BIO_RR_CONNECT)
26a7d938 3844 return SSL_ERROR_WANT_CONNECT;
8051ab2b 3845 else if (reason == BIO_RR_ACCEPT)
26a7d938 3846 return SSL_ERROR_WANT_ACCEPT;
8051ab2b 3847 else
26a7d938 3848 return SSL_ERROR_SYSCALL; /* unknown */
0f113f3e 3849 }
8051ab2b 3850 }
0f113f3e 3851
8051ab2b 3852 if (SSL_want_write(s)) {
69687aa8 3853 /* Access wbio directly - in order to use the buffered bio if present */
8051ab2b
MC		 3854 bio = s->wbio;
3855 if (BIO_should_write(bio))
26a7d938 3856 return SSL_ERROR_WANT_WRITE;
8051ab2b 3857 else if (BIO_should_read(bio))
2e7dc7cd 3858 /*
8051ab2b 3859 * See above (SSL_want_read(s) with BIO_should_write(bio))
2e7dc7cd 3860 */
26a7d938 3861 return SSL_ERROR_WANT_READ;
8051ab2b
MC		 3862 else if (BIO_should_io_special(bio)) {
3863 reason = BIO_get_retry_reason(bio);
3864 if (reason == BIO_RR_CONNECT)
26a7d938 3865 return SSL_ERROR_WANT_CONNECT;
8051ab2b 3866 else if (reason == BIO_RR_ACCEPT)
26a7d938 3867 return SSL_ERROR_WANT_ACCEPT;
8051ab2b 3868 else
26a7d938 3869 return SSL_ERROR_SYSCALL;
0f113f3e 3870 }
07bbc92c 3871 }
6b1bb98f 3872 if (SSL_want_x509_lookup(s))
26a7d938 3873 return SSL_ERROR_WANT_X509_LOOKUP;
0c3eb279
DDO		 3874 if (SSL_want_retry_verify(s))
3875 return SSL_ERROR_WANT_RETRY_VERIFY;
6b1bb98f 3876 if (SSL_want_async(s))
8051ab2b 3877 return SSL_ERROR_WANT_ASYNC;
6b1bb98f 3878 if (SSL_want_async_job(s))
8051ab2b 3879 return SSL_ERROR_WANT_ASYNC_JOB;
a9c0d8be
DB		 3880 if (SSL_want_client_hello_cb(s))
3881 return SSL_ERROR_WANT_CLIENT_HELLO_CB;
8051ab2b
MC		 3882
3883 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
555cbb32 3884 (s->s3.warn_alert == SSL_AD_CLOSE_NOTIFY))
26a7d938 3885 return SSL_ERROR_ZERO_RETURN;
8051ab2b 3886
26a7d938 3887 return SSL_ERROR_SYSCALL;
0f113f3e 3888}
d02b48c6 3889
add2f5ca
MC		 3890static int ssl_do_handshake_intern(void *vargs)
3891{
3892 struct ssl_async_args *args;
3893 SSL *s;
3894
3895 args = (struct ssl_async_args *)vargs;
3896 s = args->s;
3897
3898 return s->handshake_func(s);
3899}
3900
4f43d0e7 3901int SSL_do_handshake(SSL *s)
0f113f3e
MC		 3902{
3903 int ret = 1;
3904
3905 if (s->handshake_func == NULL) {
6849b73c 3906 ERR_raise(ERR_LIB_SSL, SSL_R_CONNECTION_TYPE_NOT_SET);
add2f5ca 3907 return -1;
0f113f3e
MC		 3908 }
3909
3eaa4170 3910 ossl_statem_check_finish_init(s, -1);
49e7fe12 3911
c7f47786 3912 s->method->ssl_renegotiate_check(s, 0);
0f113f3e
MC		 3913
3914 if (SSL_in_init(s) || SSL_in_before(s)) {
e8aa8b6c 3915 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
add2f5ca
MC		 3916 struct ssl_async_args args;
3917
09134f18 3918 memset(&args, 0, sizeof(args));
add2f5ca
MC		 3919 args.s = s;
3920
7fecbf6f 3921 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
add2f5ca
MC		 3922 } else {
3923 ret = s->handshake_func(s);
3924 }
0f113f3e 3925 }
add2f5ca 3926 return ret;
0f113f3e
MC		 3927}
3928
4f43d0e7 3929void SSL_set_accept_state(SSL *s)
0f113f3e
MC		 3930{
3931 s->server = 1;
3932 s->shutdown = 0;
fe3a3291 3933 ossl_statem_clear(s);
0f113f3e 3934 s->handshake_func = s->method->ssl_accept;
d31fb0b5 3935 clear_ciphers(s);
0f113f3e 3936}
d02b48c6 3937
4f43d0e7 3938void SSL_set_connect_state(SSL *s)
0f113f3e
MC		 3939{
3940 s->server = 0;
3941 s->shutdown = 0;
fe3a3291 3942 ossl_statem_clear(s);
0f113f3e 3943 s->handshake_func = s->method->ssl_connect;
d31fb0b5 3944 clear_ciphers(s);
0f113f3e 3945}
d02b48c6 3946
4f43d0e7 3947int ssl_undefined_function(SSL *s)
0f113f3e 3948{
6849b73c 3949 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
26a7d938 3950 return 0;
0f113f3e 3951}
d02b48c6 3952
41a15c4f 3953int ssl_undefined_void_function(void)
0f113f3e 3954{
6849b73c 3955 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
26a7d938 3956 return 0;
0f113f3e 3957}
41a15c4f 3958
0821bcd4 3959int ssl_undefined_const_function(const SSL *s)
0f113f3e 3960{
26a7d938 3961 return 0;
0f113f3e 3962}
0821bcd4 3963
2b8fa1d5 3964const SSL_METHOD *ssl_bad_method(int ver)
0f113f3e 3965{
6849b73c 3966 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
26a7d938 3967 return NULL;
0f113f3e 3968}
d02b48c6 3969
3eb2aff4 3970const char *ssl_protocol_to_string(int version)
7d650072 3971{
1287dabd 3972 switch (version)
2abacef1
MC		 3973 {
3974 case TLS1_3_VERSION:
582a17d6 3975 return "TLSv1.3";
2abacef1
MC		 3976
3977 case TLS1_2_VERSION:
7d650072 3978 return "TLSv1.2";
2abacef1
MC		 3979
3980 case TLS1_1_VERSION:
7d650072 3981 return "TLSv1.1";
2abacef1
MC		 3982
3983 case TLS1_VERSION:
ee3a6c64 3984 return "TLSv1";
2abacef1
MC		 3985
3986 case SSL3_VERSION:
7d650072 3987 return "SSLv3";
2abacef1
MC		 3988
3989 case DTLS1_BAD_VER:
7d650072 3990 return "DTLSv0.9";
2abacef1
MC		 3991
3992 case DTLS1_VERSION:
7d650072 3993 return "DTLSv1";
2abacef1
MC		 3994
3995 case DTLS1_2_VERSION:
7d650072 3996 return "DTLSv1.2";
2abacef1
MC		 3997
3998 default:
3999 return "unknown";
4000 }
0f113f3e 4001}
d02b48c6 4002
7d650072
KR		 4003const char *SSL_get_version(const SSL *s)
4004{
3eb2aff4 4005 return ssl_protocol_to_string(s->version);
7d650072
KR		 4006}
4007
98732979 4008static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
0f113f3e
MC		 4009{
4010 STACK_OF(X509_NAME) *sk;
4011 X509_NAME *xn;
98732979
MC		 4012 int i;
4013
4014 if (src == NULL) {
4015 *dst = NULL;
4016 return 1;
4017 }
4018
4019 if ((sk = sk_X509_NAME_new_null()) == NULL)
4020 return 0;
4021 for (i = 0; i < sk_X509_NAME_num(src); i++) {
4022 xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
4023 if (xn == NULL) {
4024 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4025 return 0;
4026 }
4027 if (sk_X509_NAME_insert(sk, xn, i) == 0) {
4028 X509_NAME_free(xn);
4029 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4030 return 0;
4031 }
4032 }
4033 *dst = sk;
4034
4035 return 1;
4036}
4037
4038SSL *SSL_dup(SSL *s)
4039{
0f113f3e
MC		 4040 SSL *ret;
4041 int i;
4042
919ba009
VD		 4043 /* If we're not quiescent, just up_ref! */
4044 if (!SSL_in_init(s) || !SSL_in_before(s)) {
2f545ae4 4045 CRYPTO_UP_REF(&s->references, &i, s->lock);
919ba009
VD		 4046 return s;
4047 }
4048
4049 /*
4050 * Otherwise, copy configuration state, and session if set.
4051 */
0f113f3e 4052 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
26a7d938 4053 return NULL;
0f113f3e 4054
0f113f3e 4055 if (s->session != NULL) {
919ba009
VD		 4056 /*
4057 * Arranges to share the same session via up_ref. This "copies"
4058 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4059 */
61986d32 4060 if (!SSL_copy_session_id(ret, s))
17dd65e6 4061 goto err;
0f113f3e
MC		 4062 } else {
4063 /*
4064 * No session has been established yet, so we have to expect that
4065 * s->cert or ret->cert will be changed later -- they should not both
4066 * point to the same object, and thus we can't use
4067 * SSL_copy_session_id.
4068 */
919ba009
VD		 4069 if (!SSL_set_ssl_method(ret, s->method))
4070 goto err;
0f113f3e
MC		 4071
4072 if (s->cert != NULL) {
e0e920b1 4073 ssl_cert_free(ret->cert);
0f113f3e
MC		 4074 ret->cert = ssl_cert_dup(s->cert);
4075 if (ret->cert == NULL)
4076 goto err;
4077 }
4078
348240c6
MC		 4079 if (!SSL_set_session_id_context(ret, s->sid_ctx,
4080 (int)s->sid_ctx_length))
69f68237 4081 goto err;
0f113f3e
MC		 4082 }
4083
9f6b22b8
VD		 4084 if (!ssl_dane_dup(ret, s))
4085 goto err;
919ba009 4086 ret->version = s->version;
0f113f3e 4087 ret->options = s->options;
f12dd991
MC		 4088 ret->min_proto_version = s->min_proto_version;
4089 ret->max_proto_version = s->max_proto_version;
0f113f3e
MC		 4090 ret->mode = s->mode;
4091 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
4092 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
4093 ret->msg_callback = s->msg_callback;
4094 ret->msg_callback_arg = s->msg_callback_arg;
4095 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
4096 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
4097 ret->generate_session_id = s->generate_session_id;
4098
4099 SSL_set_info_callback(ret, SSL_get_info_callback(s));
4100
0f113f3e
MC		 4101 /* copy app data, a little dangerous perhaps */
4102 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
4103 goto err;
4104
0f113f3e 4105 ret->server = s->server;
919ba009
VD		 4106 if (s->handshake_func) {
4107 if (s->server)
4108 SSL_set_accept_state(ret);
4109 else
4110 SSL_set_connect_state(ret);
4111 }
0f113f3e 4112 ret->shutdown = s->shutdown;
0f113f3e
MC		 4113 ret->hit = s->hit;
4114
a974e64a
MC		 4115 ret->default_passwd_callback = s->default_passwd_callback;
4116 ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata;
4117
0f113f3e
MC		 4118 X509_VERIFY_PARAM_inherit(ret->param, s->param);
4119
4120 /* dup the cipher_list and cipher_list_by_id stacks */
4121 if (s->cipher_list != NULL) {
4122 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
4123 goto err;
4124 }
4125 if (s->cipher_list_by_id != NULL)
4126 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
4127 == NULL)
4128 goto err;
4129
4130 /* Dup the client_CA list */
98732979
MC		 4131 if (!dup_ca_names(&ret->ca_names, s->ca_names)
4132 || !dup_ca_names(&ret->client_ca_names, s->client_ca_names))
4133 goto err;
4134
66696478 4135 return ret;
0f113f3e 4136
0f113f3e 4137 err:
66696478
RS		 4138 SSL_free(ret);
4139 return NULL;
0f113f3e 4140}
d02b48c6 4141
4f43d0e7 4142void ssl_clear_cipher_ctx(SSL *s)
0f113f3e
MC		 4143{
4144 if (s->enc_read_ctx != NULL) {
846ec07d 4145 EVP_CIPHER_CTX_free(s->enc_read_ctx);
0f113f3e
MC		 4146 s->enc_read_ctx = NULL;
4147 }
4148 if (s->enc_write_ctx != NULL) {
846ec07d 4149 EVP_CIPHER_CTX_free(s->enc_write_ctx);
0f113f3e
MC		 4150 s->enc_write_ctx = NULL;
4151 }
09b6c2ef 4152#ifndef OPENSSL_NO_COMP
efa7dd64
RS		 4153 COMP_CTX_free(s->expand);
4154 s->expand = NULL;
4155 COMP_CTX_free(s->compress);
4156 s->compress = NULL;
0f113f3e
MC		 4157#endif
4158}
d02b48c6 4159
0821bcd4 4160X509 *SSL_get_certificate(const SSL *s)
0f113f3e
MC		 4161{
4162 if (s->cert != NULL)
26a7d938 4163 return s->cert->key->x509;
0f113f3e 4164 else
26a7d938 4165 return NULL;
0f113f3e 4166}
d02b48c6 4167
a25f9adc 4168EVP_PKEY *SSL_get_privatekey(const SSL *s)
0f113f3e
MC		 4169{
4170 if (s->cert != NULL)
26a7d938 4171 return s->cert->key->privatekey;
0f113f3e 4172 else
26a7d938 4173 return NULL;
0f113f3e 4174}
d02b48c6 4175
a25f9adc 4176X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
0f113f3e
MC		 4177{
4178 if (ctx->cert != NULL)
4179 return ctx->cert->key->x509;
4180 else
4181 return NULL;
4182}
a25f9adc
DSH		 4183
4184EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
0f113f3e
MC		 4185{
4186 if (ctx->cert != NULL)
4187 return ctx->cert->key->privatekey;
4188 else
4189 return NULL;
4190}
a25f9adc 4191
babb3798 4192const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
0f113f3e
MC		 4193{
4194 if ((s->session != NULL) && (s->session->cipher != NULL))
26a7d938
K		 4195 return s->session->cipher;
4196 return NULL;
0f113f3e
MC		 4197}
4198
0aed6e44
BK		 4199const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
4200{
555cbb32 4201 return s->s3.tmp.new_cipher;
0aed6e44
BK		 4202}
4203
3499327b 4204const COMP_METHOD *SSL_get_current_compression(const SSL *s)
0f113f3e 4205{
9a555706
RS		 4206#ifndef OPENSSL_NO_COMP
4207 return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
4208#else
4209 return NULL;
4210#endif
0f113f3e 4211}
377dcdba 4212
3499327b 4213const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
0f113f3e 4214{
9a555706
RS		 4215#ifndef OPENSSL_NO_COMP
4216 return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
4217#else
4218 return NULL;
0f113f3e 4219#endif
9a555706 4220}
0f113f3e 4221
46417569 4222int ssl_init_wbio_buffer(SSL *s)
0f113f3e
MC		 4223{
4224 BIO *bbio;
4225
2e7dc7cd
MC		 4226 if (s->bbio != NULL) {
4227 /* Already buffered. */
4228 return 1;
0f113f3e 4229 }
46417569 4230
2e7dc7cd
MC		 4231 bbio = BIO_new(BIO_f_buffer());
4232 if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) {
4233 BIO_free(bbio);
6849b73c 4234 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
46417569 4235 return 0;
0f113f3e 4236 }
2e7dc7cd
MC		 4237 s->bbio = bbio;
4238 s->wbio = BIO_push(bbio, s->wbio);
46417569
MC		 4239
4240 return 1;
0f113f3e 4241}
413c4f45 4242
b77f3ed1 4243int ssl_free_wbio_buffer(SSL *s)
0f113f3e 4244{
62adbcee 4245 /* callers ensure s is never null */
0f113f3e 4246 if (s->bbio == NULL)
b77f3ed1 4247 return 1;
0f113f3e 4248
2e7dc7cd 4249 s->wbio = BIO_pop(s->wbio);
0f113f3e
MC		 4250 BIO_free(s->bbio);
4251 s->bbio = NULL;
b77f3ed1
MC		 4252
4253 return 1;
0f113f3e
MC		 4254}
4255
4256void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
4257{
4258 ctx->quiet_shutdown = mode;
4259}
58964a49 4260
0821bcd4 4261int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
0f113f3e 4262{
26a7d938 4263 return ctx->quiet_shutdown;
0f113f3e 4264}
58964a49 4265
0f113f3e
MC		 4266void SSL_set_quiet_shutdown(SSL *s, int mode)
4267{
4268 s->quiet_shutdown = mode;
4269}
58964a49 4270
0821bcd4 4271int SSL_get_quiet_shutdown(const SSL *s)
0f113f3e 4272{
26a7d938 4273 return s->quiet_shutdown;
0f113f3e 4274}
58964a49 4275
0f113f3e
MC		 4276void SSL_set_shutdown(SSL *s, int mode)
4277{
4278 s->shutdown = mode;
4279}
58964a49 4280
0821bcd4 4281int SSL_get_shutdown(const SSL *s)
0f113f3e 4282{
6546e9b2 4283 return s->shutdown;
0f113f3e 4284}
58964a49 4285
0821bcd4 4286int SSL_version(const SSL *s)
0f113f3e 4287{
6546e9b2
AG		 4288 return s->version;
4289}
4290
4291int SSL_client_version(const SSL *s)
4292{
4293 return s->client_version;
0f113f3e 4294}
58964a49 4295
0821bcd4 4296SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
0f113f3e 4297{
6546e9b2 4298 return ssl->ctx;
0f113f3e
MC		 4299}
4300
4301SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
4302{
24a0d393 4303 CERT *new_cert;
0f113f3e
MC		 4304 if (ssl->ctx == ctx)
4305 return ssl->ctx;
0f113f3e 4306 if (ctx == NULL)
222da979 4307 ctx = ssl->session_ctx;
24a0d393
KR		 4308 new_cert = ssl_cert_dup(ctx->cert);
4309 if (new_cert == NULL) {
4310 return NULL;
0f113f3e 4311 }
21181889
MC		 4312
4313 if (!custom_exts_copy_flags(&new_cert->custext, &ssl->cert->custext)) {
4314 ssl_cert_free(new_cert);
4315 return NULL;
4316 }
4317
24a0d393
KR		 4318 ssl_cert_free(ssl->cert);
4319 ssl->cert = new_cert;
0f113f3e
MC		 4320
4321 /*
4322 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
4323 * so setter APIs must prevent invalid lengths from entering the system.
4324 */
380a522f
MC		 4325 if (!ossl_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx)))
4326 return NULL;
0f113f3e
MC		 4327
4328 /*
4329 * If the session ID context matches that of the parent SSL_CTX,
4330 * inherit it from the new SSL_CTX as well. If however the context does
4331 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
4332 * leave it unchanged.
4333 */
4334 if ((ssl->ctx != NULL) &&
4335 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
4336 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
4337 ssl->sid_ctx_length = ctx->sid_ctx_length;
4338 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
4339 }
4340
16203f7b 4341 SSL_CTX_up_ref(ctx);
a230b26e 4342 SSL_CTX_free(ssl->ctx); /* decrement reference count */
0f113f3e
MC		 4343 ssl->ctx = ctx;
4344
16203f7b 4345 return ssl->ctx;
0f113f3e 4346}
ed3883d2 4347
4f43d0e7 4348int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
0f113f3e 4349{
d8652be0
MC		 4350 return X509_STORE_set_default_paths_ex(ctx->cert_store, ctx->libctx,
4351 ctx->propq);
0f113f3e 4352}
58964a49 4353
d84a7b20
MC		 4354int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
4355{
4356 X509_LOOKUP *lookup;
4357
4358 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
4359 if (lookup == NULL)
4360 return 0;
6dcb100f
RL		 4361
4362 /* We ignore errors, in case the directory doesn't exist */
4363 ERR_set_mark();
4364
d84a7b20
MC		 4365 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
4366
6dcb100f 4367 ERR_pop_to_mark();
d84a7b20
MC		 4368
4369 return 1;
4370}
4371
4372int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
4373{
4374 X509_LOOKUP *lookup;
4375
4376 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
4377 if (lookup == NULL)
4378 return 0;
4379
492bc359 4380 /* We ignore errors, in case the file doesn't exist */
6dcb100f
RL		 4381 ERR_set_mark();
4382
d8652be0
MC		 4383 X509_LOOKUP_load_file_ex(lookup, NULL, X509_FILETYPE_DEFAULT, ctx->libctx,
4384 ctx->propq);
d84a7b20 4385
6dcb100f
RL		 4386 ERR_pop_to_mark();
4387
4388 return 1;
4389}
4390
4391int SSL_CTX_set_default_verify_store(SSL_CTX *ctx)
4392{
4393 X509_LOOKUP *lookup;
4394
4395 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_store());
4396 if (lookup == NULL)
4397 return 0;
4398
4399 /* We ignore errors, in case the directory doesn't exist */
4400 ERR_set_mark();
4401
d8652be0 4402 X509_LOOKUP_add_store_ex(lookup, NULL, ctx->libctx, ctx->propq);
6dcb100f
RL		 4403
4404 ERR_pop_to_mark();
d84a7b20
MC		 4405
4406 return 1;
4407}
4408
6dcb100f
RL		 4409int SSL_CTX_load_verify_file(SSL_CTX *ctx, const char *CAfile)
4410{
d8652be0
MC		 4411 return X509_STORE_load_file_ex(ctx->cert_store, CAfile, ctx->libctx,
4412 ctx->propq);
6dcb100f
RL		 4413}
4414
4415int SSL_CTX_load_verify_dir(SSL_CTX *ctx, const char *CApath)
4416{
4417 return X509_STORE_load_path(ctx->cert_store, CApath);
4418}
4419
4420int SSL_CTX_load_verify_store(SSL_CTX *ctx, const char *CAstore)
4421{
d8652be0
MC		 4422 return X509_STORE_load_store_ex(ctx->cert_store, CAstore, ctx->libctx,
4423 ctx->propq);
6dcb100f
RL		 4424}
4425
303c0028 4426int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
0f113f3e
MC		 4427 const char *CApath)
4428{
6dcb100f
RL		 4429 if (CAfile == NULL && CApath == NULL)
4430 return 0;
4431 if (CAfile != NULL && !SSL_CTX_load_verify_file(ctx, CAfile))
4432 return 0;
4433 if (CApath != NULL && !SSL_CTX_load_verify_dir(ctx, CApath))
4434 return 0;
4435 return 1;
0f113f3e 4436}
58964a49 4437
45d87a1f 4438void SSL_set_info_callback(SSL *ssl,
0f113f3e
MC		 4439 void (*cb) (const SSL *ssl, int type, int val))
4440{
4441 ssl->info_callback = cb;
4442}
4443
4444/*
4445 * One compiler (Diab DCC) doesn't like argument names in returned function
4446 * pointer.
4447 */
4448void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
4449 int /* type */ ,
4450 int /* val */ ) {
4451 return ssl->info_callback;
4452}
58964a49 4453
0f113f3e
MC		 4454void SSL_set_verify_result(SSL *ssl, long arg)
4455{
4456 ssl->verify_result = arg;
4457}
58964a49 4458
0821bcd4 4459long SSL_get_verify_result(const SSL *ssl)
0f113f3e 4460{
26a7d938 4461 return ssl->verify_result;
0f113f3e
MC		 4462}
4463
d9f1c639 4464size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
858618e7 4465{
6b8f5d0d 4466 if (outlen == 0)
555cbb32
TS		 4467 return sizeof(ssl->s3.client_random);
4468 if (outlen > sizeof(ssl->s3.client_random))
4469 outlen = sizeof(ssl->s3.client_random);
4470 memcpy(out, ssl->s3.client_random, outlen);
d9f1c639 4471 return outlen;
858618e7
NM		 4472}
4473
d9f1c639 4474size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
858618e7 4475{
6b8f5d0d 4476 if (outlen == 0)
555cbb32
TS		 4477 return sizeof(ssl->s3.server_random);
4478 if (outlen > sizeof(ssl->s3.server_random))
4479 outlen = sizeof(ssl->s3.server_random);
4480 memcpy(out, ssl->s3.server_random, outlen);
d9f1c639 4481 return outlen;
858618e7
NM		 4482}
4483
d9f1c639 4484size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
a230b26e 4485 unsigned char *out, size_t outlen)
858618e7 4486{
d9f1c639
MC		 4487 if (outlen == 0)
4488 return session->master_key_length;
8c1a5343 4489 if (outlen > session->master_key_length)
858618e7
NM		 4490 outlen = session->master_key_length;
4491 memcpy(out, session->master_key, outlen);
d9f1c639 4492 return outlen;
858618e7
NM		 4493}
4494
725b0f1e 4495int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
911d63f2
MC		 4496 size_t len)
4497{
4498 if (len > sizeof(sess->master_key))
4499 return 0;
4500
4501 memcpy(sess->master_key, in, len);
4502 sess->master_key_length = len;
911d63f2
MC		 4503 return 1;
4504}
4505
4506
0f113f3e
MC		 4507int SSL_set_ex_data(SSL *s, int idx, void *arg)
4508{
26a7d938 4509 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
0f113f3e
MC		 4510}
4511
4512void *SSL_get_ex_data(const SSL *s, int idx)
4513{
26a7d938 4514 return CRYPTO_get_ex_data(&s->ex_data, idx);
0f113f3e
MC		 4515}
4516
0f113f3e
MC		 4517int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
4518{
26a7d938 4519 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
0f113f3e
MC		 4520}
4521
4522void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
4523{
26a7d938 4524 return CRYPTO_get_ex_data(&s->ex_data, idx);
0f113f3e 4525}
58964a49 4526
0821bcd4 4527X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
0f113f3e 4528{
26a7d938 4529 return ctx->cert_store;
0f113f3e 4530}
413c4f45 4531
0f113f3e
MC		 4532void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
4533{
222561fe 4534 X509_STORE_free(ctx->cert_store);
0f113f3e
MC		 4535 ctx->cert_store = store;
4536}
413c4f45 4537
b50052db
TS		 4538void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
4539{
4540 if (store != NULL)
4541 X509_STORE_up_ref(store);
4542 SSL_CTX_set_cert_store(ctx, store);
4543}
4544
0821bcd4 4545int SSL_want(const SSL *s)
0f113f3e 4546{
26a7d938 4547 return s->rwstate;
0f113f3e 4548}
413c4f45 4549
ddac1974
NL		 4550#ifndef OPENSSL_NO_PSK
4551int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
0f113f3e
MC		 4552{
4553 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
6849b73c 4554 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
0f113f3e
MC		 4555 return 0;
4556 }
df6da24b 4557 OPENSSL_free(ctx->cert->psk_identity_hint);
0f113f3e 4558 if (identity_hint != NULL) {
7644a9ae 4559 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
df6da24b 4560 if (ctx->cert->psk_identity_hint == NULL)
0f113f3e
MC		 4561 return 0;
4562 } else
df6da24b 4563 ctx->cert->psk_identity_hint = NULL;
0f113f3e
MC		 4564 return 1;
4565}
ddac1974
NL		 4566
4567int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
0f113f3e
MC		 4568{
4569 if (s == NULL)
4570 return 0;
4571
0f113f3e 4572 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
6849b73c 4573 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
0f113f3e
MC		 4574 return 0;
4575 }
df6da24b 4576 OPENSSL_free(s->cert->psk_identity_hint);
0f113f3e 4577 if (identity_hint != NULL) {
7644a9ae 4578 s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
df6da24b 4579 if (s->cert->psk_identity_hint == NULL)
0f113f3e
MC		 4580 return 0;
4581 } else
df6da24b 4582 s->cert->psk_identity_hint = NULL;
0f113f3e
MC		 4583 return 1;
4584}
ddac1974
NL		 4585
4586const char *SSL_get_psk_identity_hint(const SSL *s)
0f113f3e
MC		 4587{
4588 if (s == NULL || s->session == NULL)
4589 return NULL;
26a7d938 4590 return s->session->psk_identity_hint;
0f113f3e 4591}
ddac1974
NL		 4592
4593const char *SSL_get_psk_identity(const SSL *s)
0f113f3e
MC		 4594{
4595 if (s == NULL || s->session == NULL)
4596 return NULL;
26a7d938 4597 return s->session->psk_identity;
0f113f3e 4598}
7806f3dd 4599
8cbfcc70 4600void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
0f113f3e
MC		 4601{
4602 s->psk_client_callback = cb;
4603}
7806f3dd 4604
8cbfcc70 4605void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
0f113f3e
MC		 4606{
4607 ctx->psk_client_callback = cb;
4608}
7806f3dd 4609
8cbfcc70 4610void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
0f113f3e
MC		 4611{
4612 s->psk_server_callback = cb;
4613}
7806f3dd 4614
8cbfcc70 4615void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
0f113f3e
MC		 4616{
4617 ctx->psk_server_callback = cb;
4618}
4619#endif
4620
f46184bd
MC		 4621void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
4622{
4623 s->psk_find_session_cb = cb;
4624}
4625
4626void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
4627 SSL_psk_find_session_cb_func cb)
4628{
4629 ctx->psk_find_session_cb = cb;
4630}
4631
4632void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
4633{
4634 s->psk_use_session_cb = cb;
4635}
4636
4637void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
4638 SSL_psk_use_session_cb_func cb)
4639{
4640 ctx->psk_use_session_cb = cb;
4641}
4642
0f113f3e
MC		 4643void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
4644 void (*cb) (int write_p, int version,
4645 int content_type, const void *buf,
4646 size_t len, SSL *ssl, void *arg))
4647{
4648 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
4649}
4650
4651void SSL_set_msg_callback(SSL *ssl,
4652 void (*cb) (int write_p, int version,
4653 int content_type, const void *buf,
4654 size_t len, SSL *ssl, void *arg))
4655{
4656 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
4657}
a661b653 4658
7c2d4fee 4659void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
0f113f3e
MC		 4660 int (*cb) (SSL *ssl,
4661 int
4662 is_forward_secure))
4663{
4664 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
4665 (void (*)(void))cb);
4666}
4667
7c2d4fee 4668void SSL_set_not_resumable_session_callback(SSL *ssl,
0f113f3e
MC		 4669 int (*cb) (SSL *ssl,
4670 int is_forward_secure))
4671{
4672 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
4673 (void (*)(void))cb);
4674}
4675
c649d10d
TS		 4676void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
4677 size_t (*cb) (SSL *ssl, int type,
4678 size_t len, void *arg))
4679{
4680 ctx->record_padding_cb = cb;
4681}
4682
4683void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
4684{
4685 ctx->record_padding_arg = arg;
4686}
4687
3499327b 4688void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
c649d10d
TS		 4689{
4690 return ctx->record_padding_arg;
4691}
4692
4693int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
4694{
4695 /* block size of 0 or 1 is basically no padding */
4696 if (block_size == 1)
4697 ctx->block_padding = 0;
4698 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
4699 ctx->block_padding = block_size;
4700 else
4701 return 0;
4702 return 1;
4703}
4704
a6d36303 4705int SSL_set_record_padding_callback(SSL *ssl,
c649d10d
TS		 4706 size_t (*cb) (SSL *ssl, int type,
4707 size_t len, void *arg))
4708{
a6d36303
VF		 4709 BIO *b;
4710
4711 b = SSL_get_wbio(ssl);
4712 if (b == NULL || !BIO_get_ktls_send(b)) {
4713 ssl->record_padding_cb = cb;
4714 return 1;
4715 }
4716 return 0;
c649d10d
TS		 4717}
4718
4719void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
4720{
4721 ssl->record_padding_arg = arg;
4722}
4723
3499327b 4724void *SSL_get_record_padding_callback_arg(const SSL *ssl)
c649d10d
TS		 4725{
4726 return ssl->record_padding_arg;
4727}
4728
4729int SSL_set_block_padding(SSL *ssl, size_t block_size)
4730{
4731 /* block size of 0 or 1 is basically no padding */
4732 if (block_size == 1)
4733 ssl->block_padding = 0;
4734 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
4735 ssl->block_padding = block_size;
4736 else
4737 return 0;
4738 return 1;
4739}
4740
9d0a8bb7
MC		 4741int SSL_set_num_tickets(SSL *s, size_t num_tickets)
4742{
4743 s->num_tickets = num_tickets;
4744
4745 return 1;
4746}
4747
3499327b 4748size_t SSL_get_num_tickets(const SSL *s)
9d0a8bb7
MC		 4749{
4750 return s->num_tickets;
4751}
4752
4753int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
4754{
4755 ctx->num_tickets = num_tickets;
4756
4757 return 1;
4758}
4759
3499327b 4760size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
9d0a8bb7
MC		 4761{
4762 return ctx->num_tickets;
4763}
4764
0f113f3e
MC		 4765/*
4766 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
8483a003 4767 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
69687aa8 4768 * If EVP_MD pointer is passed, initializes ctx with this |md|.
48722ff5 4769 * Returns the newly allocated ctx;
8671b898 4770 */
b948e2c5 4771
0f113f3e 4772EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
b948e2c5 4773{
0f113f3e 4774 ssl_clear_hash_ctx(hash);
bfb0641f 4775 *hash = EVP_MD_CTX_new();
5f3d93e4 4776 if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) {
bfb0641f 4777 EVP_MD_CTX_free(*hash);
5f3d93e4
MC		 4778 *hash = NULL;
4779 return NULL;
4780 }
0f113f3e 4781 return *hash;
b948e2c5 4782}
0f113f3e
MC		 4783
4784void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
b948e2c5
DSH		 4785{
4786
0d9824c1 4787 EVP_MD_CTX_free(*hash);
0f113f3e 4788 *hash = NULL;
b948e2c5 4789}
a661b653 4790
48fbcbac 4791/* Retrieve handshake hashes */
8c1a5343
MC		 4792int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen,
4793 size_t *hashlen)
48fbcbac 4794{
6e59a892 4795 EVP_MD_CTX *ctx = NULL;
555cbb32 4796 EVP_MD_CTX *hdgst = s->s3.handshake_dgst;
ed576acd 4797 int hashleni = EVP_MD_CTX_get_size(hdgst);
8c1a5343
MC		 4798 int ret = 0;
4799
f63a17d6 4800 if (hashleni < 0 || (size_t)hashleni > outlen) {
c48ffbcc 4801 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
28ba2541 4802 goto err;
f63a17d6 4803 }
8c1a5343 4804
bfb0641f 4805 ctx = EVP_MD_CTX_new();
147ed5f9
TL		 4806 if (ctx == NULL) {
4807 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6e59a892 4808 goto err;
147ed5f9 4809 }
8c1a5343 4810
6e59a892 4811 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
f63a17d6 4812 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
c48ffbcc 4813 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
8c1a5343 4814 goto err;
f63a17d6 4815 }
8c1a5343
MC		 4816
4817 *hashlen = hashleni;
4818
4819 ret = 1;
48fbcbac 4820 err:
bfb0641f 4821 EVP_MD_CTX_free(ctx);
48fbcbac
DSH		 4822 return ret;
4823}
4824
c04b66b1 4825int SSL_session_reused(const SSL *s)
0f113f3e
MC		 4826{
4827 return s->hit;
4828}
08557cf2 4829
69443116 4830int SSL_is_server(const SSL *s)
0f113f3e
MC		 4831{
4832 return s->server;
4833}
87adf1fa 4834
00db8c60 4835#ifndef OPENSSL_NO_DEPRECATED_1_1_0
47153c72
RS		 4836void SSL_set_debug(SSL *s, int debug)
4837{
4838 /* Old function was do-nothing anyway... */
4839 (void)s;
4840 (void)debug;
4841}
4842#endif
4843
b362ccab 4844void SSL_set_security_level(SSL *s, int level)
0f113f3e
MC		 4845{
4846 s->cert->sec_level = level;
4847}
b362ccab
DSH		 4848
4849int SSL_get_security_level(const SSL *s)
0f113f3e
MC		 4850{
4851 return s->cert->sec_level;
4852}
b362ccab 4853
0f113f3e 4854void SSL_set_security_callback(SSL *s,
a230b26e
EK		 4855 int (*cb) (const SSL *s, const SSL_CTX *ctx,
4856 int op, int bits, int nid,
4857 void *other, void *ex))
0f113f3e
MC		 4858{
4859 s->cert->sec_cb = cb;
4860}
b362ccab 4861
a230b26e
EK		 4862int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
4863 const SSL_CTX *ctx, int op,
4864 int bits, int nid, void *other,
4865 void *ex) {
0f113f3e
MC		 4866 return s->cert->sec_cb;
4867}
b362ccab
DSH		 4868
4869void SSL_set0_security_ex_data(SSL *s, void *ex)
0f113f3e
MC		 4870{
4871 s->cert->sec_ex = ex;
4872}
b362ccab
DSH		 4873
4874void *SSL_get0_security_ex_data(const SSL *s)
0f113f3e
MC		 4875{
4876 return s->cert->sec_ex;
4877}
b362ccab
DSH		 4878
4879void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
0f113f3e
MC		 4880{
4881 ctx->cert->sec_level = level;
4882}
b362ccab
DSH		 4883
4884int SSL_CTX_get_security_level(const SSL_CTX *ctx)
0f113f3e
MC		 4885{
4886 return ctx->cert->sec_level;
4887}
b362ccab 4888
0f113f3e 4889void SSL_CTX_set_security_callback(SSL_CTX *ctx,
a230b26e
EK		 4890 int (*cb) (const SSL *s, const SSL_CTX *ctx,
4891 int op, int bits, int nid,
4892 void *other, void *ex))
0f113f3e
MC		 4893{
4894 ctx->cert->sec_cb = cb;
4895}
b362ccab 4896
e4646a89
KR		 4897int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
4898 const SSL_CTX *ctx,
0f113f3e
MC		 4899 int op, int bits,
4900 int nid,
4901 void *other,
4902 void *ex) {
4903 return ctx->cert->sec_cb;
4904}
b362ccab
DSH		 4905
4906void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
0f113f3e
MC		 4907{
4908 ctx->cert->sec_ex = ex;
4909}
b362ccab
DSH		 4910
4911void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
0f113f3e
MC		 4912{
4913 return ctx->cert->sec_ex;
4914}
b362ccab 4915
56bd1783 4916uint64_t SSL_CTX_get_options(const SSL_CTX *ctx)
8106cb8b
VD		 4917{
4918 return ctx->options;
4919}
a230b26e 4920
56bd1783 4921uint64_t SSL_get_options(const SSL *s)
8106cb8b
VD		 4922{
4923 return s->options;
4924}
a230b26e 4925
56bd1783 4926uint64_t SSL_CTX_set_options(SSL_CTX *ctx, uint64_t op)
8106cb8b
VD		 4927{
4928 return ctx->options |= op;
4929}
a230b26e 4930
56bd1783 4931uint64_t SSL_set_options(SSL *s, uint64_t op)
8106cb8b
VD		 4932{
4933 return s->options |= op;
4934}
a230b26e 4935
56bd1783 4936uint64_t SSL_CTX_clear_options(SSL_CTX *ctx, uint64_t op)
8106cb8b
VD		 4937{
4938 return ctx->options &= ~op;
4939}
a230b26e 4940
56bd1783 4941uint64_t SSL_clear_options(SSL *s, uint64_t op)
8106cb8b
VD		 4942{
4943 return s->options &= ~op;
4944}
4945
696178ed
DSH		 4946STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
4947{
4948 return s->verified_chain;
4949}
4950
0f113f3e 4951IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
ed29e82a
RP		 4952
4953#ifndef OPENSSL_NO_CT
4954
4955/*
4956 * Moves SCTs from the |src| stack to the |dst| stack.
4957 * The source of each SCT will be set to |origin|.
4958 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4959 * the caller.
4960 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4961 */
a230b26e
EK		 4962static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
4963 sct_source_t origin)
ed29e82a
RP		 4964{
4965 int scts_moved = 0;
4966 SCT *sct = NULL;
4967
4968 if (*dst == NULL) {
4969 *dst = sk_SCT_new_null();
4970 if (*dst == NULL) {
6849b73c 4971 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
ed29e82a
RP		 4972 goto err;
4973 }
4974 }
4975
4976 while ((sct = sk_SCT_pop(src)) != NULL) {
4977 if (SCT_set_source(sct, origin) != 1)
4978 goto err;
4979
4980 if (sk_SCT_push(*dst, sct) <= 0)
4981 goto err;
4982 scts_moved += 1;
4983 }
4984
4985 return scts_moved;
a230b26e 4986 err:
ed29e82a 4987 if (sct != NULL)
a230b26e 4988 sk_SCT_push(src, sct); /* Put the SCT back */
cc7113e8 4989 return -1;
ed29e82a
RP		 4990}
4991
4992/*
a230b26e 4993 * Look for data collected during ServerHello and parse if found.
6b13bd1d 4994 * Returns the number of SCTs extracted.
a230b26e 4995 */
ed29e82a
RP		 4996static int ct_extract_tls_extension_scts(SSL *s)
4997{
4998 int scts_extracted = 0;
4999
aff8c126
RS		 5000 if (s->ext.scts != NULL) {
5001 const unsigned char *p = s->ext.scts;
5002 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
ed29e82a
RP		 5003
5004 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
5005
5006 SCT_LIST_free(scts);
5007 }
5008
5009 return scts_extracted;
5010}
5011
5012/*
5013 * Checks for an OCSP response and then attempts to extract any SCTs found if it
5014 * contains an SCT X509 extension. They will be stored in |s->scts|.
5015 * Returns:
5016 * - The number of SCTs extracted, assuming an OCSP response exists.
5017 * - 0 if no OCSP response exists or it contains no SCTs.
5018 * - A negative integer if an error occurs.
5019 */
5020static int ct_extract_ocsp_response_scts(SSL *s)
5021{
a230b26e 5022# ifndef OPENSSL_NO_OCSP
ed29e82a
RP		 5023 int scts_extracted = 0;
5024 const unsigned char *p;
5025 OCSP_BASICRESP *br = NULL;
5026 OCSP_RESPONSE *rsp = NULL;
5027 STACK_OF(SCT) *scts = NULL;
5028 int i;
5029
aff8c126 5030 if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
ed29e82a
RP		 5031 goto err;
5032
aff8c126
RS		 5033 p = s->ext.ocsp.resp;
5034 rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
ed29e82a
RP		 5035 if (rsp == NULL)
5036 goto err;
5037
5038 br = OCSP_response_get1_basic(rsp);
5039 if (br == NULL)
5040 goto err;
5041
5042 for (i = 0; i < OCSP_resp_count(br); ++i) {
5043 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
5044
5045 if (single == NULL)
5046 continue;
5047
a230b26e
EK		 5048 scts =
5049 OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
5050 scts_extracted =
5051 ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
ed29e82a
RP		 5052 if (scts_extracted < 0)
5053 goto err;
5054 }
a230b26e 5055 err:
ed29e82a
RP		 5056 SCT_LIST_free(scts);
5057 OCSP_BASICRESP_free(br);
5058 OCSP_RESPONSE_free(rsp);
5059 return scts_extracted;
a230b26e 5060# else
3e41ac35
MC		 5061 /* Behave as if no OCSP response exists */
5062 return 0;
a230b26e 5063# endif
ed29e82a
RP		 5064}
5065
5066/*
5067 * Attempts to extract SCTs from the peer certificate.
5068 * Return the number of SCTs extracted, or a negative integer if an error
5069 * occurs.
5070 */
5071static int ct_extract_x509v3_extension_scts(SSL *s)
5072{
5073 int scts_extracted = 0;
3f3c7d26 5074 X509 *cert = s->session != NULL ? s->session->peer : NULL;
ed29e82a
RP		 5075
5076 if (cert != NULL) {
5077 STACK_OF(SCT) *scts =
5078 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
5079
5080 scts_extracted =
5081 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
5082
5083 SCT_LIST_free(scts);
5084 }
5085
5086 return scts_extracted;
5087}
5088
5089/*
5090 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
5091 * response (if it exists) and X509v3 extensions in the certificate.
5092 * Returns NULL if an error occurs.
5093 */
5094const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
5095{
5096 if (!s->scts_parsed) {
5097 if (ct_extract_tls_extension_scts(s) < 0 ||
5098 ct_extract_ocsp_response_scts(s) < 0 ||
5099 ct_extract_x509v3_extension_scts(s) < 0)
5100 goto err;
5101
5102 s->scts_parsed = 1;
5103 }
5104 return s->scts;
a230b26e 5105 err:
ed29e82a
RP		 5106 return NULL;
5107}
5108
a230b26e 5109static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx,
43341433 5110 const STACK_OF(SCT) *scts, void *unused_arg)
ed29e82a 5111{
43341433
VD		 5112 return 1;
5113}
5114
a230b26e 5115static int ct_strict(const CT_POLICY_EVAL_CTX * ctx,
43341433
VD		 5116 const STACK_OF(SCT) *scts, void *unused_arg)
5117{
5118 int count = scts != NULL ? sk_SCT_num(scts) : 0;
5119 int i;
ed29e82a 5120
43341433
VD		 5121 for (i = 0; i < count; ++i) {
5122 SCT *sct = sk_SCT_value(scts, i);
5123 int status = SCT_get_validation_status(sct);
5124
5125 if (status == SCT_VALIDATION_STATUS_VALID)
5126 return 1;
5127 }
6849b73c 5128 ERR_raise(ERR_LIB_SSL, SSL_R_NO_VALID_SCTS);
43341433
VD		 5129 return 0;
5130}
5131
5132int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
5133 void *arg)
5134{
ed29e82a
RP		 5135 /*
5136 * Since code exists that uses the custom extension handler for CT, look
5137 * for this and throw an error if they have already registered to use CT.
5138 */
5139 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
a230b26e
EK		 5140 TLSEXT_TYPE_signed_certificate_timestamp))
5141 {
6849b73c 5142 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
43341433 5143 return 0;
ed29e82a
RP		 5144 }
5145
ed29e82a 5146 if (callback != NULL) {
a230b26e
EK		 5147 /*
5148 * If we are validating CT, then we MUST accept SCTs served via OCSP
5149 */
ed29e82a 5150 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
43341433 5151 return 0;
ed29e82a
RP		 5152 }
5153
43341433
VD		 5154 s->ct_validation_callback = callback;
5155 s->ct_validation_callback_arg = arg;
5156
5157 return 1;
ed29e82a
RP		 5158}
5159
43341433 5160int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
a230b26e 5161 ssl_ct_validation_cb callback, void *arg)
ed29e82a 5162{
ed29e82a
RP		 5163 /*
5164 * Since code exists that uses the custom extension handler for CT, look for
5165 * this and throw an error if they have already registered to use CT.
5166 */
5167 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
a230b26e
EK		 5168 TLSEXT_TYPE_signed_certificate_timestamp))
5169 {
6849b73c 5170 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
43341433 5171 return 0;
ed29e82a
RP		 5172 }
5173
5174 ctx->ct_validation_callback = callback;
5175 ctx->ct_validation_callback_arg = arg;
43341433 5176 return 1;
ed29e82a
RP		 5177}
5178
43341433 5179int SSL_ct_is_enabled(const SSL *s)
ed29e82a 5180{
43341433 5181 return s->ct_validation_callback != NULL;
ed29e82a
RP		 5182}
5183
43341433 5184int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
ed29e82a 5185{
43341433 5186 return ctx->ct_validation_callback != NULL;
ed29e82a
RP		 5187}
5188
4d482ee2 5189int ssl_validate_ct(SSL *s)
ed29e82a
RP		 5190{
5191 int ret = 0;
3f3c7d26 5192 X509 *cert = s->session != NULL ? s->session->peer : NULL;
43341433 5193 X509 *issuer;
b9aec69a 5194 SSL_DANE *dane = &s->dane;
ed29e82a
RP		 5195 CT_POLICY_EVAL_CTX *ctx = NULL;
5196 const STACK_OF(SCT) *scts;
5197
43341433
VD		 5198 /*
5199 * If no callback is set, the peer is anonymous, or its chain is invalid,
5200 * skip SCT validation - just return success. Applications that continue
5201 * handshakes without certificates, with unverified chains, or pinned leaf
5202 * certificates are outside the scope of the WebPKI and CT.
5203 *
5204 * The above exclusions notwithstanding the vast majority of peers will
5205 * have rather ordinary certificate chains validated by typical
5206 * applications that perform certificate verification and therefore will
5207 * process SCTs when enabled.
5208 */
5209 if (s->ct_validation_callback == NULL || cert == NULL ||
5210 s->verify_result != X509_V_OK ||
a230b26e 5211 s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
ed29e82a
RP		 5212 return 1;
5213
43341433
VD		 5214 /*
5215 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
5216 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
5217 */
5218 if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
5219 switch (dane->mtlsa->usage) {
5220 case DANETLS_USAGE_DANE_TA:
5221 case DANETLS_USAGE_DANE_EE:
5222 return 1;
5223 }
ed29e82a
RP		 5224 }
5225
d8652be0 5226 ctx = CT_POLICY_EVAL_CTX_new_ex(s->ctx->libctx, s->ctx->propq);
ed29e82a 5227 if (ctx == NULL) {
c48ffbcc 5228 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
ed29e82a
RP		 5229 goto end;
5230 }
5231
43341433 5232 issuer = sk_X509_value(s->verified_chain, 1);
a1bb7708
RP		 5233 CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
5234 CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
5235 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx, s->ctx->ctlog_store);
6a71e06d
RP		 5236 CT_POLICY_EVAL_CTX_set_time(
5237 ctx, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s)) * 1000);
ed29e82a
RP		 5238
5239 scts = SSL_get0_peer_scts(s);
5240
43341433
VD		 5241 /*
5242 * This function returns success (> 0) only when all the SCTs are valid, 0
5243 * when some are invalid, and < 0 on various internal errors (out of
5244 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
5245 * reason to abort the handshake, that decision is up to the callback.
5246 * Therefore, we error out only in the unexpected case that the return
5247 * value is negative.
5248 *
5249 * XXX: One might well argue that the return value of this function is an
f430ba31 5250 * unfortunate design choice. Its job is only to determine the validation
43341433
VD		 5251 * status of each of the provided SCTs. So long as it correctly separates
5252 * the wheat from the chaff it should return success. Failure in this case
5253 * ought to correspond to an inability to carry out its duties.
5254 */
5255 if (SCT_LIST_validate(scts, ctx) < 0) {
c48ffbcc 5256 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_SCT_VERIFICATION_FAILED);
ed29e82a
RP		 5257 goto end;
5258 }
5259
5260 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
5261 if (ret < 0)
a230b26e 5262 ret = 0; /* This function returns 0 on failure */
f63a17d6 5263 if (!ret)
c48ffbcc 5264 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_CALLBACK_FAILED);
ed29e82a 5265
a230b26e 5266 end:
ed29e82a 5267 CT_POLICY_EVAL_CTX_free(ctx);
f75b34c8
VD		 5268 /*
5269 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
5270 * failure return code here. Also the application may wish the complete
5271 * the handshake, and then disconnect cleanly at a higher layer, after
5272 * checking the verification status of the completed connection.
5273 *
5274 * We therefore force a certificate verification failure which will be
5275 * visible via SSL_get_verify_result() and cached as part of any resumed
5276 * session.
5277 *
5278 * Note: the permissive callback is for information gathering only, always
5279 * returns success, and does not affect verification status. Only the
5280 * strict callback or a custom application-specified callback can trigger
5281 * connection failure or record a verification error.
5282 */
5283 if (ret <= 0)
5284 s->verify_result = X509_V_ERR_NO_VALID_SCTS;
ed29e82a
RP		 5285 return ret;
5286}
5287
43341433
VD		 5288int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
5289{
5290 switch (validation_mode) {
5291 default:
6849b73c 5292 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
43341433
VD		 5293 return 0;
5294 case SSL_CT_VALIDATION_PERMISSIVE:
5295 return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
5296 case SSL_CT_VALIDATION_STRICT:
5297 return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
5298 }
5299}
5300
5301int SSL_enable_ct(SSL *s, int validation_mode)
5302{
5303 switch (validation_mode) {
5304 default:
6849b73c 5305 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
43341433
VD		 5306 return 0;
5307 case SSL_CT_VALIDATION_PERMISSIVE:
5308 return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
5309 case SSL_CT_VALIDATION_STRICT:
5310 return SSL_set_ct_validation_callback(s, ct_strict, NULL);
5311 }
5312}
5313
ed29e82a
RP		 5314int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
5315{
328f36c5 5316 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
ed29e82a
RP		 5317}
5318
5319int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
5320{
5321 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
5322}
5323
a230b26e 5324void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs)
8359b57f
RP		 5325{
5326 CTLOG_STORE_free(ctx->ctlog_store);
5327 ctx->ctlog_store = logs;
5328}
5329
5330const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
5331{
5332 return ctx->ctlog_store;
5333}
5334
6b1bb98f
BK		 5335#endif /* OPENSSL_NO_CT */
5336
a9c0d8be
DB		 5337void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
5338 void *arg)
6b1bb98f 5339{
a9c0d8be
DB		 5340 c->client_hello_cb = cb;
5341 c->client_hello_cb_arg = arg;
6b1bb98f
BK		 5342}
5343
a9c0d8be 5344int SSL_client_hello_isv2(SSL *s)
6b1bb98f
BK		 5345{
5346 if (s->clienthello == NULL)
5347 return 0;
5348 return s->clienthello->isv2;
5349}
5350
a9c0d8be 5351unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
6b1bb98f
BK		 5352{
5353 if (s->clienthello == NULL)
5354 return 0;
5355 return s->clienthello->legacy_version;
5356}
5357
a9c0d8be 5358size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out)
6b1bb98f
BK		 5359{
5360 if (s->clienthello == NULL)
5361 return 0;
5362 if (out != NULL)
5363 *out = s->clienthello->random;
5364 return SSL3_RANDOM_SIZE;
5365}
5366
a9c0d8be 5367size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
6b1bb98f
BK		 5368{
5369 if (s->clienthello == NULL)
5370 return 0;
5371 if (out != NULL)
5372 *out = s->clienthello->session_id;
5373 return s->clienthello->session_id_len;
5374}
5375
a9c0d8be 5376size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
6b1bb98f
BK		 5377{
5378 if (s->clienthello == NULL)
5379 return 0;
5380 if (out != NULL)
5381 *out = PACKET_data(&s->clienthello->ciphersuites);
5382 return PACKET_remaining(&s->clienthello->ciphersuites);
5383}
5384
a9c0d8be 5385size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
6b1bb98f
BK		 5386{
5387 if (s->clienthello == NULL)
5388 return 0;
5389 if (out != NULL)
5390 *out = s->clienthello->compressions;
5391 return s->clienthello->compressions_len;
5392}
5393
a9c0d8be 5394int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
193b5d76
BK		 5395{
5396 RAW_EXTENSION *ext;
5397 int *present;
5398 size_t num = 0, i;
5399
5400 if (s->clienthello == NULL || out == NULL || outlen == NULL)
5401 return 0;
5402 for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) {
5403 ext = s->clienthello->pre_proc_exts + i;
5404 if (ext->present)
5405 num++;
5406 }
6fda11ae 5407 if (num == 0) {
5408 *out = NULL;
5409 *outlen = 0;
5410 return 1;
5411 }
cdb10bae 5412 if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL) {
6849b73c 5413 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
193b5d76 5414 return 0;
cdb10bae 5415 }
193b5d76
BK		 5416 for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) {
5417 ext = s->clienthello->pre_proc_exts + i;
5418 if (ext->present) {
5419 if (ext->received_order >= num)
5420 goto err;
5421 present[ext->received_order] = ext->type;
5422 }
5423 }
5424 *out = present;
5425 *outlen = num;
5426 return 1;
5427 err:
5428 OPENSSL_free(present);
5429 return 0;
5430}
5431
13a53fbf
PL		 5432int SSL_client_hello_get_extension_order(SSL *s, uint16_t *exts, size_t *num_exts)
5433{
5434 RAW_EXTENSION *ext;
5435 size_t num = 0, i;
5436
5437 if (s->clienthello == NULL || num_exts == NULL)
5438 return 0;
5439 for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) {
5440 ext = s->clienthello->pre_proc_exts + i;
5441 if (ext->present)
5442 num++;
5443 }
5444 if (num == 0) {
5445 *num_exts = 0;
5446 return 1;
5447 }
5448 if (exts == NULL) {
5449 *num_exts = num;
5450 return 1;
5451 }
5452 if (*num_exts < num)
5453 return 0;
5454 for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) {
5455 ext = s->clienthello->pre_proc_exts + i;
5456 if (ext->present) {
5457 if (ext->received_order >= num)
5458 return 0;
5459 exts[ext->received_order] = ext->type;
5460 }
5461 }
5462 *num_exts = num;
5463 return 1;
5464}
5465
a9c0d8be 5466int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
6b1bb98f
BK		 5467 size_t *outlen)
5468{
5469 size_t i;
5470 RAW_EXTENSION *r;
5471
5472 if (s->clienthello == NULL)
5473 return 0;
5474 for (i = 0; i < s->clienthello->pre_proc_exts_len; ++i) {
5475 r = s->clienthello->pre_proc_exts + i;
5476 if (r->present && r->type == type) {
5477 if (out != NULL)
5478 *out = PACKET_data(&r->data);
5479 if (outlen != NULL)
5480 *outlen = PACKET_remaining(&r->data);
5481 return 1;
5482 }
5483 }
5484 return 0;
5485}
2faa1b48 5486
a58eb06d
TS		 5487int SSL_free_buffers(SSL *ssl)
5488{
5489 RECORD_LAYER *rl = &ssl->rlayer;
5490
5491 if (RECORD_LAYER_read_pending(rl) || RECORD_LAYER_write_pending(rl))
5492 return 0;
5493
5494 RECORD_LAYER_release(rl);
5495 return 1;
5496}
5497
5498int SSL_alloc_buffers(SSL *ssl)
5499{
5500 return ssl3_setup_buffers(ssl);
5501}
5502
2faa1b48
CB		 5503void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
5504{
5505 ctx->keylog_callback = cb;
5506}
5507
5508SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
5509{
5510 return ctx->keylog_callback;
5511}
5512
5513static int nss_keylog_int(const char *prefix,
5514 SSL *ssl,
5515 const uint8_t *parameter_1,
5516 size_t parameter_1_len,
5517 const uint8_t *parameter_2,
5518 size_t parameter_2_len)
5519{
5520 char *out = NULL;
5521 char *cursor = NULL;
5522 size_t out_len = 0;
5523 size_t i;
5524 size_t prefix_len;
5525
20870286
P		 5526 if (ssl->ctx->keylog_callback == NULL)
5527 return 1;
2faa1b48
CB		 5528
5529 /*
5530 * Our output buffer will contain the following strings, rendered with
5531 * space characters in between, terminated by a NULL character: first the
5532 * prefix, then the first parameter, then the second parameter. The
5533 * meaning of each parameter depends on the specific key material being
5534 * logged. Note that the first and second parameters are encoded in
5535 * hexadecimal, so we need a buffer that is twice their lengths.
5536 */
5537 prefix_len = strlen(prefix);
e931f370 5538 out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
2faa1b48 5539 if ((out = cursor = OPENSSL_malloc(out_len)) == NULL) {
c48ffbcc 5540 SSLfatal(ssl, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
2faa1b48
CB		 5541 return 0;
5542 }
5543
5544 strcpy(cursor, prefix);
5545 cursor += prefix_len;
5546 *cursor++ = ' ';
5547
5548 for (i = 0; i < parameter_1_len; i++) {
5549 sprintf(cursor, "%02x", parameter_1[i]);
5550 cursor += 2;
5551 }
5552 *cursor++ = ' ';
5553
5554 for (i = 0; i < parameter_2_len; i++) {
5555 sprintf(cursor, "%02x", parameter_2[i]);
5556 cursor += 2;
5557 }
5558 *cursor = '\0';
5559
5560 ssl->ctx->keylog_callback(ssl, (const char *)out);
e931f370 5561 OPENSSL_clear_free(out, out_len);
2faa1b48
CB		 5562 return 1;
5563
5564}
5565
5566int ssl_log_rsa_client_key_exchange(SSL *ssl,
5567 const uint8_t *encrypted_premaster,
5568 size_t encrypted_premaster_len,
5569 const uint8_t *premaster,
5570 size_t premaster_len)
5571{
5572 if (encrypted_premaster_len < 8) {
c48ffbcc 5573 SSLfatal(ssl, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
2faa1b48
CB		 5574 return 0;
5575 }
5576
f0deb4d3 5577 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
2faa1b48
CB		 5578 return nss_keylog_int("RSA",
5579 ssl,
5580 encrypted_premaster,
f0deb4d3 5581 8,
2faa1b48
CB		 5582 premaster,
5583 premaster_len);
5584}
5585
2c7bd692
CB		 5586int ssl_log_secret(SSL *ssl,
5587 const char *label,
5588 const uint8_t *secret,
5589 size_t secret_len)
2faa1b48 5590{
2c7bd692 5591 return nss_keylog_int(label,
2faa1b48 5592 ssl,
555cbb32 5593 ssl->s3.client_random,
2c7bd692
CB		 5594 SSL3_RANDOM_SIZE,
5595 secret,
5596 secret_len);
2faa1b48
CB		 5597}
5598
ccb8e6e0
BK		 5599#define SSLV2_CIPHER_LEN 3
5600
f63a17d6 5601int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites, int sslv2format)
ccb8e6e0 5602{
ccb8e6e0 5603 int n;
ccb8e6e0
BK		 5604
5605 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
5606
5607 if (PACKET_remaining(cipher_suites) == 0) {
c48ffbcc 5608 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
90134d98 5609 return 0;
ccb8e6e0
BK		 5610 }
5611
5612 if (PACKET_remaining(cipher_suites) % n != 0) {
c48ffbcc 5613 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
90134d98 5614 return 0;
ccb8e6e0
BK		 5615 }
5616
555cbb32
TS		 5617 OPENSSL_free(s->s3.tmp.ciphers_raw);
5618 s->s3.tmp.ciphers_raw = NULL;
5619 s->s3.tmp.ciphers_rawlen = 0;
ccb8e6e0
BK		 5620
5621 if (sslv2format) {
5622 size_t numciphers = PACKET_remaining(cipher_suites) / n;
5623 PACKET sslv2ciphers = *cipher_suites;
5624 unsigned int leadbyte;
5625 unsigned char *raw;
5626
5627 /*
5628 * We store the raw ciphers list in SSLv3+ format so we need to do some
5629 * preprocessing to convert the list first. If there are any SSLv2 only
5630 * ciphersuites with a non-zero leading byte then we are going to
5631 * slightly over allocate because we won't store those. But that isn't a
5632 * problem.
5633 */
5634 raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
555cbb32 5635 s->s3.tmp.ciphers_raw = raw;
ccb8e6e0 5636 if (raw == NULL) {
c48ffbcc 5637 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
f63a17d6 5638 return 0;
ccb8e6e0 5639 }
555cbb32 5640 for (s->s3.tmp.ciphers_rawlen = 0;
ccb8e6e0
BK		 5641 PACKET_remaining(&sslv2ciphers) > 0;
5642 raw += TLS_CIPHER_LEN) {
5643 if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
5644 || (leadbyte == 0
5645 && !PACKET_copy_bytes(&sslv2ciphers, raw,
5646 TLS_CIPHER_LEN))
5647 || (leadbyte != 0
5648 && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
c48ffbcc 5649 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_PACKET);
555cbb32
TS		 5650 OPENSSL_free(s->s3.tmp.ciphers_raw);
5651 s->s3.tmp.ciphers_raw = NULL;
5652 s->s3.tmp.ciphers_rawlen = 0;
f63a17d6 5653 return 0;
ccb8e6e0
BK		 5654 }
5655 if (leadbyte == 0)
555cbb32 5656 s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN;
ccb8e6e0 5657 }
555cbb32
TS		 5658 } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw,
5659 &s->s3.tmp.ciphers_rawlen)) {
c48ffbcc 5660 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
f63a17d6 5661 return 0;
ccb8e6e0 5662 }
90134d98 5663 return 1;
90134d98
BK		 5664}
5665
5666int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
5667 int isv2format, STACK_OF(SSL_CIPHER) **sk,
5668 STACK_OF(SSL_CIPHER) **scsvs)
5669{
90134d98
BK		 5670 PACKET pkt;
5671
5672 if (!PACKET_buf_init(&pkt, bytes, len))
5673 return 0;
f63a17d6 5674 return bytes_to_cipher_list(s, &pkt, sk, scsvs, isv2format, 0);
90134d98
BK		 5675}
5676
5677int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites,
5678 STACK_OF(SSL_CIPHER) **skp,
5679 STACK_OF(SSL_CIPHER) **scsvs_out,
f63a17d6 5680 int sslv2format, int fatal)
90134d98
BK		 5681{
5682 const SSL_CIPHER *c;
5683 STACK_OF(SSL_CIPHER) *sk = NULL;
5684 STACK_OF(SSL_CIPHER) *scsvs = NULL;
5685 int n;
5686 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
5687 unsigned char cipher[SSLV2_CIPHER_LEN];
5688
5689 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
5690
5691 if (PACKET_remaining(cipher_suites) == 0) {
f63a17d6 5692 if (fatal)
c48ffbcc 5693 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
f63a17d6 5694 else
6849b73c 5695 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHERS_SPECIFIED);
90134d98
BK		 5696 return 0;
5697 }
5698
5699 if (PACKET_remaining(cipher_suites) % n != 0) {
f63a17d6 5700 if (fatal)
c48ffbcc 5701 SSLfatal(s, SSL_AD_DECODE_ERROR,
f63a17d6
MC		 5702 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
5703 else
6849b73c 5704 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
90134d98
BK		 5705 return 0;
5706 }
5707
5708 sk = sk_SSL_CIPHER_new_null();
5709 scsvs = sk_SSL_CIPHER_new_null();
5710 if (sk == NULL || scsvs == NULL) {
f63a17d6 5711 if (fatal)
c48ffbcc 5712 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
f63a17d6 5713 else
6849b73c 5714 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
90134d98
BK		 5715 goto err;
5716 }
ccb8e6e0
BK		 5717
5718 while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
5719 /*
5720 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
5721 * first byte set to zero, while true SSLv2 ciphers have a non-zero
5722 * first byte. We don't support any true SSLv2 ciphers, so skip them.
5723 */
5724 if (sslv2format && cipher[0] != '\0')
5725 continue;
5726
ccb8e6e0
BK		 5727 /* For SSLv2-compat, ignore leading 0-byte. */
5728 c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
5729 if (c != NULL) {
90134d98
BK		 5730 if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
5731 (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
f63a17d6 5732 if (fatal)
c48ffbcc 5733 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
f63a17d6 5734 else
6849b73c 5735 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
ccb8e6e0
BK		 5736 goto err;
5737 }
5738 }
5739 }
5740 if (PACKET_remaining(cipher_suites) > 0) {
f63a17d6 5741 if (fatal)
c48ffbcc 5742 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_LENGTH);
f63a17d6 5743 else
6849b73c 5744 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
ccb8e6e0
BK		 5745 goto err;
5746 }
5747
90134d98
BK		 5748 if (skp != NULL)
5749 *skp = sk;
5750 else
5751 sk_SSL_CIPHER_free(sk);
5752 if (scsvs_out != NULL)
5753 *scsvs_out = scsvs;
5754 else
5755 sk_SSL_CIPHER_free(scsvs);
5756 return 1;
ccb8e6e0
BK		 5757 err:
5758 sk_SSL_CIPHER_free(sk);
90134d98
BK		 5759 sk_SSL_CIPHER_free(scsvs);
5760 return 0;
ccb8e6e0 5761}
3fc8d856
MC		 5762
5763int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
5764{
5765 ctx->max_early_data = max_early_data;
5766
5767 return 1;
5768}
5769
46dcb945 5770uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
3fc8d856
MC		 5771{
5772 return ctx->max_early_data;
5773}
5774
5775int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
5776{
5777 s->max_early_data = max_early_data;
5778
5779 return 1;
5780}
5781
a8e75d56 5782uint32_t SSL_get_max_early_data(const SSL *s)
3fc8d856
MC		 5783{
5784 return s->max_early_data;
5785}
ae3947de 5786
4e8548e8
MC		 5787int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
5788{
5789 ctx->recv_max_early_data = recv_max_early_data;
5790
5791 return 1;
5792}
5793
5794uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
5795{
5796 return ctx->recv_max_early_data;
5797}
5798
5799int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
5800{
5801 s->recv_max_early_data = recv_max_early_data;
5802
5803 return 1;
5804}
5805
5806uint32_t SSL_get_recv_max_early_data(const SSL *s)
5807{
5808 return s->recv_max_early_data;
5809}
5810
cf72c757
F		 5811__owur unsigned int ssl_get_max_send_fragment(const SSL *ssl)
5812{
5813 /* Return any active Max Fragment Len extension */
5814 if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session))
5815 return GET_MAX_FRAGMENT_LENGTH(ssl->session);
5816
5817 /* return current SSL connection setting */
5818 return ssl->max_send_fragment;
5819}
5820
5821__owur unsigned int ssl_get_split_send_fragment(const SSL *ssl)
5822{
5823 /* Return a value regarding an active Max Fragment Len extension */
5824 if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session)
5825 && ssl->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(ssl->session))
5826 return GET_MAX_FRAGMENT_LENGTH(ssl->session);
5827
5828 /* else limit |split_send_fragment| to current |max_send_fragment| */
5829 if (ssl->split_send_fragment > ssl->max_send_fragment)
5830 return ssl->max_send_fragment;
5831
5832 /* return current SSL connection setting */
5833 return ssl->split_send_fragment;
5834}
042c5753
MC		 5835
5836int SSL_stateless(SSL *s)
5837{
5838 int ret;
5839
5840 /* Ensure there is no state left over from a previous invocation */
5841 if (!SSL_clear(s))
d6bb50a5 5842 return 0;
042c5753
MC		 5843
5844 ERR_clear_error();
5845
555cbb32 5846 s->s3.flags |= TLS1_FLAGS_STATELESS;
042c5753 5847 ret = SSL_accept(s);
555cbb32 5848 s->s3.flags &= ~TLS1_FLAGS_STATELESS;
042c5753 5849
d6bb50a5 5850 if (ret > 0 && s->ext.cookieok)
c36001c3
MC		 5851 return 1;
5852
e440f513
MC		 5853 if (s->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(s))
5854 return 0;
5855
5856 return -1;
042c5753 5857}
9d75dce3 5858
e97be718
MC		 5859void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
5860{
5861 ctx->pha_enabled = val;
5862}
5863
32097b33 5864void SSL_set_post_handshake_auth(SSL *ssl, int val)
9d75dce3 5865{
32097b33 5866 ssl->pha_enabled = val;
9d75dce3
TS		 5867}
5868
5869int SSL_verify_client_post_handshake(SSL *ssl)
5870{
5871 if (!SSL_IS_TLS13(ssl)) {
6849b73c 5872 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
9d75dce3
TS		 5873 return 0;
5874 }
5875 if (!ssl->server) {
6849b73c 5876 ERR_raise(ERR_LIB_SSL, SSL_R_NOT_SERVER);
9d75dce3
TS		 5877 return 0;
5878 }
5879
5880 if (!SSL_is_init_finished(ssl)) {
6849b73c 5881 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
9d75dce3
TS		 5882 return 0;
5883 }
5884
5885 switch (ssl->post_handshake_auth) {
5886 case SSL_PHA_NONE:
6849b73c 5887 ERR_raise(ERR_LIB_SSL, SSL_R_EXTENSION_NOT_RECEIVED);
9d75dce3
TS		 5888 return 0;
5889 default:
5890 case SSL_PHA_EXT_SENT:
6849b73c 5891 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
9d75dce3
TS		 5892 return 0;
5893 case SSL_PHA_EXT_RECEIVED:
5894 break;
5895 case SSL_PHA_REQUEST_PENDING:
6849b73c 5896 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_PENDING);
9d75dce3
TS		 5897 return 0;
5898 case SSL_PHA_REQUESTED:
6849b73c 5899 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_SENT);
9d75dce3
TS		 5900 return 0;
5901 }
5902
5903 ssl->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
5904
5905 /* checks verify_mode and algorithm_auth */
5906 if (!send_certificate_request(ssl)) {
5907 ssl->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
6849b73c 5908 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CONFIG);
9d75dce3
TS		 5909 return 0;
5910 }
5911
5912 ossl_statem_set_in_init(ssl, 1);
5913 return 1;
5914}
df0fed9a
TS		 5915
5916int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
5917 SSL_CTX_generate_session_ticket_fn gen_cb,
5918 SSL_CTX_decrypt_session_ticket_fn dec_cb,
5919 void *arg)
5920{
5921 ctx->generate_ticket_cb = gen_cb;
5922 ctx->decrypt_ticket_cb = dec_cb;
5923 ctx->ticket_cb_data = arg;
5924 return 1;
5925}
c9598459
MC		 5926
5927void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
5928 SSL_allow_early_data_cb_fn cb,
5929 void *arg)
5930{
5931 ctx->allow_early_data_cb = cb;
5932 ctx->allow_early_data_cb_data = arg;
5933}
5934
5935void SSL_set_allow_early_data_cb(SSL *s,
5936 SSL_allow_early_data_cb_fn cb,
5937 void *arg)
5938{
5939 s->allow_early_data_cb = cb;
5940 s->allow_early_data_cb_data = arg;
5941}
c8f6c28a 5942
b4250010 5943const EVP_CIPHER *ssl_evp_cipher_fetch(OSSL_LIB_CTX *libctx,
c8f6c28a
MC		 5944 int nid,
5945 const char *properties)
5946{
301fcb28 5947 const EVP_CIPHER *ciph;
5fcb97c6 5948
301fcb28
MC		 5949 ciph = tls_get_cipher_from_engine(nid);
5950 if (ciph != NULL)
5951 return ciph;
0618b62c 5952
c8f6c28a 5953 /*
301fcb28
MC		 5954 * If there is no engine cipher then we do an explicit fetch. This may fail
5955 * and that could be ok
c8f6c28a 5956 */
5fcb97c6
MC		 5957 ERR_set_mark();
5958 ciph = EVP_CIPHER_fetch(libctx, OBJ_nid2sn(nid), properties);
5959 ERR_pop_to_mark();
5960 return ciph;
c8f6c28a
MC		 5961}
5962
5963
5964int ssl_evp_cipher_up_ref(const EVP_CIPHER *cipher)
5965{
5966 /* Don't up-ref an implicit EVP_CIPHER */
ed576acd 5967 if (EVP_CIPHER_get0_provider(cipher) == NULL)
c8f6c28a
MC		 5968 return 1;
5969
5970 /*
5971 * The cipher was explicitly fetched and therefore it is safe to cast
5972 * away the const
5973 */
5974 return EVP_CIPHER_up_ref((EVP_CIPHER *)cipher);
5975}
5976
5977void ssl_evp_cipher_free(const EVP_CIPHER *cipher)
5978{
5979 if (cipher == NULL)
5980 return;
5981
ed576acd 5982 if (EVP_CIPHER_get0_provider(cipher) != NULL) {
c8f6c28a
MC		 5983 /*
5984 * The cipher was explicitly fetched and therefore it is safe to cast
5985 * away the const
5986 */
5987 EVP_CIPHER_free((EVP_CIPHER *)cipher);
5988 }
5989}
5990
b4250010 5991const EVP_MD *ssl_evp_md_fetch(OSSL_LIB_CTX *libctx,
c8f6c28a
MC		 5992 int nid,
5993 const char *properties)
5994{
301fcb28 5995 const EVP_MD *md;
5fcb97c6 5996
301fcb28
MC		 5997 md = tls_get_digest_from_engine(nid);
5998 if (md != NULL)
5999 return md;
c8f6c28a
MC		 6000
6001 /* Otherwise we do an explicit fetch */
5fcb97c6
MC		 6002 ERR_set_mark();
6003 md = EVP_MD_fetch(libctx, OBJ_nid2sn(nid), properties);
6004 ERR_pop_to_mark();
6005 return md;
c8f6c28a
MC		 6006}
6007
6008int ssl_evp_md_up_ref(const EVP_MD *md)
6009{
6010 /* Don't up-ref an implicit EVP_MD */
ed576acd 6011 if (EVP_MD_get0_provider(md) == NULL)
c8f6c28a
MC		 6012 return 1;
6013
6014 /*
6015 * The digest was explicitly fetched and therefore it is safe to cast
6016 * away the const
6017 */
6018 return EVP_MD_up_ref((EVP_MD *)md);
6019}
6020
6021void ssl_evp_md_free(const EVP_MD *md)
6022{
6023 if (md == NULL)
6024 return;
6025
ed576acd 6026 if (EVP_MD_get0_provider(md) != NULL) {
c8f6c28a
MC		 6027 /*
6028 * The digest was explicitly fetched and therefore it is safe to cast
6029 * away the const
6030 */
6031 EVP_MD_free((EVP_MD *)md);
6032 }
6033}
163f6dc1
MC		 6034
6035int SSL_set0_tmp_dh_pkey(SSL *s, EVP_PKEY *dhpkey)
6036{
6037 if (!ssl_security(s, SSL_SECOP_TMP_DH,
ed576acd 6038 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
276d6c68 6039 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
163f6dc1
MC		 6040 return 0;
6041 }
6042 EVP_PKEY_free(s->cert->dh_tmp);
6043 s->cert->dh_tmp = dhpkey;
6044 return 1;
6045}
6046
6047int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX *ctx, EVP_PKEY *dhpkey)
6048{
6049 if (!ssl_ctx_security(ctx, SSL_SECOP_TMP_DH,
ed576acd 6050 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
276d6c68 6051 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
163f6dc1
MC		 6052 return 0;
6053 }
6054 EVP_PKEY_free(ctx->cert->dh_tmp);
6055 ctx->cert->dh_tmp = dhpkey;
6056 return 1;
6057}
A mirror of the official openssl repository