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Use the record layer msg_callback not the SSL object msg_callback
[thirdparty/openssl.git] / ssl / ssl_lib.c
CommitLineData
0f113f3e 1/*
fecb3aae 2 * Copyright 1995-2022 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>
4566dae7 24#include <openssl/core_names.h>
67dc995e 25#include "internal/cryptlib.h"
cd420b0b 26#include "internal/refcount.h"
50ec7505 27#include "internal/ktls.h"
0f113f3e 28
38b051a1
TM		 29static int ssl_undefined_function_1(SSL_CONNECTION *sc, SSL3_RECORD *r, size_t s,
30 int t, SSL_MAC_BUF *mac, size_t macsize)
fce78bd4 31{
38b051a1 32 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
fce78bd4
BE		 33}
34
38b051a1
TM		 35static int ssl_undefined_function_2(SSL_CONNECTION *sc, SSL3_RECORD *r,
36 unsigned char *s, int t)
fce78bd4 37{
38b051a1 38 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
fce78bd4
BE		 39}
40
38b051a1 41static int ssl_undefined_function_3(SSL_CONNECTION *sc, unsigned char *r,
fce78bd4
BE		 42 unsigned char *s, size_t t, size_t *u)
43{
38b051a1 44 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
fce78bd4
BE		 45}
46
38b051a1 47static int ssl_undefined_function_4(SSL_CONNECTION *sc, int r)
fce78bd4 48{
38b051a1 49 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
fce78bd4
BE		 50}
51
38b051a1
TM		 52static size_t ssl_undefined_function_5(SSL_CONNECTION *sc, const char *r,
53 size_t s, unsigned char *t)
fce78bd4 54{
38b051a1 55 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
fce78bd4
BE		 56}
57
58static int ssl_undefined_function_6(int r)
59{
fce78bd4
BE		 60 return ssl_undefined_function(NULL);
61}
62
38b051a1
TM		 63static int ssl_undefined_function_7(SSL_CONNECTION *sc, unsigned char *r,
64 size_t s, const char *t, size_t u,
fce78bd4
BE		 65 const unsigned char *v, size_t w, int x)
66{
38b051a1
TM		 67 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
68}
69
70static int ssl_undefined_function_8(SSL_CONNECTION *sc)
71{
72 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
fce78bd4
BE		 73}
74
0f113f3e 75SSL3_ENC_METHOD ssl3_undef_enc_method = {
fce78bd4
BE		 76 ssl_undefined_function_1,
77 ssl_undefined_function_2,
38b051a1 78 ssl_undefined_function_8,
fce78bd4
BE		 79 ssl_undefined_function_3,
80 ssl_undefined_function_4,
81 ssl_undefined_function_5,
0f113f3e
MC		 82 NULL, /* client_finished_label */
83 0, /* client_finished_label_len */
84 NULL, /* server_finished_label */
85 0, /* server_finished_label_len */
fce78bd4
BE		 86 ssl_undefined_function_6,
87 ssl_undefined_function_7,
0f113f3e 88};
d02b48c6 89
07bbc92c
MC		 90struct ssl_async_args {
91 SSL *s;
92 void *buf;
348240c6 93 size_t num;
a230b26e 94 enum { READFUNC, WRITEFUNC, OTHERFUNC } type;
add2f5ca 95 union {
eda75751 96 int (*func_read) (SSL *, void *, size_t, size_t *);
7ee8627f 97 int (*func_write) (SSL *, const void *, size_t, size_t *);
a230b26e 98 int (*func_other) (SSL *);
add2f5ca 99 } f;
07bbc92c
MC		 100};
101
919ba009
VD		 102static const struct {
103 uint8_t mtype;
104 uint8_t ord;
a230b26e 105 int nid;
919ba009 106} dane_mds[] = {
a230b26e
EK		 107 {
108 DANETLS_MATCHING_FULL, 0, NID_undef
109 },
110 {
111 DANETLS_MATCHING_2256, 1, NID_sha256
112 },
113 {
114 DANETLS_MATCHING_2512, 2, NID_sha512
115 },
919ba009
VD		 116};
117
118static int dane_ctx_enable(struct dane_ctx_st *dctx)
119{
120 const EVP_MD **mdevp;
121 uint8_t *mdord;
122 uint8_t mdmax = DANETLS_MATCHING_LAST;
a230b26e 123 int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */
919ba009
VD		 124 size_t i;
125
5ae4ceb9
VD		 126 if (dctx->mdevp != NULL)
127 return 1;
128
919ba009
VD		 129 mdevp = OPENSSL_zalloc(n * sizeof(*mdevp));
130 mdord = OPENSSL_zalloc(n * sizeof(*mdord));
131
132 if (mdord == NULL || mdevp == NULL) {
b3bd3d5a 133 OPENSSL_free(mdord);
919ba009 134 OPENSSL_free(mdevp);
6849b73c 135 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
919ba009
VD		 136 return 0;
137 }
138
139 /* Install default entries */
140 for (i = 0; i < OSSL_NELEM(dane_mds); ++i) {
141 const EVP_MD *md;
142
143 if (dane_mds[i].nid == NID_undef ||
144 (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL)
145 continue;
146 mdevp[dane_mds[i].mtype] = md;
147 mdord[dane_mds[i].mtype] = dane_mds[i].ord;
148 }
149
150 dctx->mdevp = mdevp;
151 dctx->mdord = mdord;
152 dctx->mdmax = mdmax;
153
154 return 1;
155}
156
157static void dane_ctx_final(struct dane_ctx_st *dctx)
158{
159 OPENSSL_free(dctx->mdevp);
160 dctx->mdevp = NULL;
161
162 OPENSSL_free(dctx->mdord);
163 dctx->mdord = NULL;
164 dctx->mdmax = 0;
165}
166
167static void tlsa_free(danetls_record *t)
168{
169 if (t == NULL)
170 return;
171 OPENSSL_free(t->data);
172 EVP_PKEY_free(t->spki);
173 OPENSSL_free(t);
174}
175
b9aec69a 176static void dane_final(SSL_DANE *dane)
919ba009
VD		 177{
178 sk_danetls_record_pop_free(dane->trecs, tlsa_free);
179 dane->trecs = NULL;
180
79b2a2f2 181 OSSL_STACK_OF_X509_free(dane->certs);
919ba009
VD		 182 dane->certs = NULL;
183
184 X509_free(dane->mcert);
185 dane->mcert = NULL;
186 dane->mtlsa = NULL;
187 dane->mdpth = -1;
188 dane->pdpth = -1;
189}
190
191/*
192 * dane_copy - Copy dane configuration, sans verification state.
193 */
38b051a1 194static int ssl_dane_dup(SSL_CONNECTION *to, SSL_CONNECTION *from)
919ba009
VD		 195{
196 int num;
197 int i;
198
199 if (!DANETLS_ENABLED(&from->dane))
200 return 1;
201
e431363f 202 num = sk_danetls_record_num(from->dane.trecs);
919ba009 203 dane_final(&to->dane);
5ae4ceb9 204 to->dane.flags = from->dane.flags;
38b051a1 205 to->dane.dctx = &SSL_CONNECTION_GET_CTX(to)->dane;
7a908204 206 to->dane.trecs = sk_danetls_record_new_reserve(NULL, num);
9f6b22b8
VD		 207
208 if (to->dane.trecs == NULL) {
6849b73c 209 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
9f6b22b8
VD		 210 return 0;
211 }
919ba009 212
919ba009
VD		 213 for (i = 0; i < num; ++i) {
214 danetls_record *t = sk_danetls_record_value(from->dane.trecs, i);
9f6b22b8 215
38b051a1
TM		 216 if (SSL_dane_tlsa_add(SSL_CONNECTION_GET_SSL(to), t->usage,
217 t->selector, t->mtype, t->data, t->dlen) <= 0)
919ba009
VD		 218 return 0;
219 }
220 return 1;
221}
222
a230b26e
EK		 223static int dane_mtype_set(struct dane_ctx_st *dctx,
224 const EVP_MD *md, uint8_t mtype, uint8_t ord)
919ba009
VD		 225{
226 int i;
227
228 if (mtype == DANETLS_MATCHING_FULL && md != NULL) {
6849b73c 229 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL);
919ba009
VD		 230 return 0;
231 }
232
233 if (mtype > dctx->mdmax) {
234 const EVP_MD **mdevp;
235 uint8_t *mdord;
a230b26e 236 int n = ((int)mtype) + 1;
919ba009
VD		 237
238 mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp));
239 if (mdevp == NULL) {
6849b73c 240 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
919ba009
VD		 241 return -1;
242 }
243 dctx->mdevp = mdevp;
244
245 mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord));
246 if (mdord == NULL) {
6849b73c 247 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
919ba009
VD		 248 return -1;
249 }
250 dctx->mdord = mdord;
251
252 /* Zero-fill any gaps */
a230b26e 253 for (i = dctx->mdmax + 1; i < mtype; ++i) {
919ba009
VD		 254 mdevp[i] = NULL;
255 mdord[i] = 0;
256 }
257
258 dctx->mdmax = mtype;
259 }
260
261 dctx->mdevp[mtype] = md;
262 /* Coerce ordinal of disabled matching types to 0 */
263 dctx->mdord[mtype] = (md == NULL) ? 0 : ord;
264
265 return 1;
266}
267
b9aec69a 268static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype)
919ba009
VD		 269{
270 if (mtype > dane->dctx->mdmax)
271 return NULL;
272 return dane->dctx->mdevp[mtype];
273}
274
a230b26e
EK		 275static int dane_tlsa_add(SSL_DANE *dane,
276 uint8_t usage,
277 uint8_t selector,
6d4313f0 278 uint8_t mtype, const unsigned char *data, size_t dlen)
919ba009
VD		 279{
280 danetls_record *t;
281 const EVP_MD *md = NULL;
282 int ilen = (int)dlen;
283 int i;
9f6b22b8 284 int num;
919ba009
VD		 285
286 if (dane->trecs == NULL) {
6849b73c 287 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_NOT_ENABLED);
919ba009
VD		 288 return -1;
289 }
290
291 if (ilen < 0 || dlen != (size_t)ilen) {
6849b73c 292 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DATA_LENGTH);
919ba009
VD		 293 return 0;
294 }
295
296 if (usage > DANETLS_USAGE_LAST) {
6849b73c 297 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE);
919ba009
VD		 298 return 0;
299 }
300
301 if (selector > DANETLS_SELECTOR_LAST) {
6849b73c 302 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_SELECTOR);
919ba009
VD		 303 return 0;
304 }
305
306 if (mtype != DANETLS_MATCHING_FULL) {
307 md = tlsa_md_get(dane, mtype);
308 if (md == NULL) {
6849b73c 309 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE);
919ba009
VD		 310 return 0;
311 }
312 }
313
ed576acd 314 if (md != NULL && dlen != (size_t)EVP_MD_get_size(md)) {
6849b73c 315 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH);
919ba009
VD		 316 return 0;
317 }
318 if (!data) {
6849b73c 319 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_NULL_DATA);
919ba009
VD		 320 return 0;
321 }
322
323 if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) {
6849b73c 324 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
919ba009
VD		 325 return -1;
326 }
327
328 t->usage = usage;
329 t->selector = selector;
330 t->mtype = mtype;
348240c6 331 t->data = OPENSSL_malloc(dlen);
919ba009
VD		 332 if (t->data == NULL) {
333 tlsa_free(t);
6849b73c 334 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
919ba009
VD		 335 return -1;
336 }
348240c6
MC		 337 memcpy(t->data, data, dlen);
338 t->dlen = dlen;
919ba009
VD		 339
340 /* Validate and cache full certificate or public key */
341 if (mtype == DANETLS_MATCHING_FULL) {
342 const unsigned char *p = data;
343 X509 *cert = NULL;
344 EVP_PKEY *pkey = NULL;
345
346 switch (selector) {
347 case DANETLS_SELECTOR_CERT:
348240c6 348 if (!d2i_X509(&cert, &p, ilen) || p < data ||
919ba009
VD		 349 dlen != (size_t)(p - data)) {
350 tlsa_free(t);
6849b73c 351 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
919ba009
VD		 352 return 0;
353 }
354 if (X509_get0_pubkey(cert) == NULL) {
355 tlsa_free(t);
6849b73c 356 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
919ba009
VD		 357 return 0;
358 }
359
360 if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
361 X509_free(cert);
362 break;
363 }
364
365 /*
366 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
367 * records that contain full certificates of trust-anchors that are
368 * not present in the wire chain. For usage PKIX-TA(0), we augment
369 * the chain with untrusted Full(0) certificates from DNS, in case
370 * they are missing from the chain.
371 */
372 if ((dane->certs == NULL &&
373 (dane->certs = sk_X509_new_null()) == NULL) ||
374 !sk_X509_push(dane->certs, cert)) {
6849b73c 375 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
919ba009
VD		 376 X509_free(cert);
377 tlsa_free(t);
378 return -1;
379 }
380 break;
381
382 case DANETLS_SELECTOR_SPKI:
348240c6 383 if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data ||
919ba009
VD		 384 dlen != (size_t)(p - data)) {
385 tlsa_free(t);
6849b73c 386 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
919ba009
VD		 387 return 0;
388 }
389
390 /*
391 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
392 * records that contain full bare keys of trust-anchors that are
393 * not present in the wire chain.
394 */
395 if (usage == DANETLS_USAGE_DANE_TA)
396 t->spki = pkey;
397 else
398 EVP_PKEY_free(pkey);
399 break;
400 }
401 }
402
403 /*-
404 * Find the right insertion point for the new record.
405 *
406 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
407 * they can be processed first, as they require no chain building, and no
408 * expiration or hostname checks. Because DANE-EE(3) is numerically
409 * largest, this is accomplished via descending sort by "usage".
410 *
411 * We also sort in descending order by matching ordinal to simplify
412 * the implementation of digest agility in the verification code.
413 *
414 * The choice of order for the selector is not significant, so we
415 * use the same descending order for consistency.
416 */
9f6b22b8
VD		 417 num = sk_danetls_record_num(dane->trecs);
418 for (i = 0; i < num; ++i) {
919ba009 419 danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
9f6b22b8 420
919ba009
VD		 421 if (rec->usage > usage)
422 continue;
423 if (rec->usage < usage)
424 break;
425 if (rec->selector > selector)
426 continue;
427 if (rec->selector < selector)
428 break;
429 if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
430 continue;
431 break;
432 }
433
434 if (!sk_danetls_record_insert(dane->trecs, t, i)) {
435 tlsa_free(t);
6849b73c 436 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
919ba009
VD		 437 return -1;
438 }
439 dane->umask |= DANETLS_USAGE_BIT(usage);
440
441 return 1;
442}
443
c8feba72
BK		 444/*
445 * Return 0 if there is only one version configured and it was disabled
446 * at configure time. Return 1 otherwise.
447 */
448static int ssl_check_allowed_versions(int min_version, int max_version)
449{
450 int minisdtls = 0, maxisdtls = 0;
451
452 /* Figure out if we're doing DTLS versions or TLS versions */
453 if (min_version == DTLS1_BAD_VER
454 || min_version >> 8 == DTLS1_VERSION_MAJOR)
455 minisdtls = 1;
456 if (max_version == DTLS1_BAD_VER
457 || max_version >> 8 == DTLS1_VERSION_MAJOR)
458 maxisdtls = 1;
459 /* A wildcard version of 0 could be DTLS or TLS. */
460 if ((minisdtls && !maxisdtls && max_version != 0)
461 || (maxisdtls && !minisdtls && min_version != 0)) {
462 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
463 return 0;
464 }
465
466 if (minisdtls || maxisdtls) {
467 /* Do DTLS version checks. */
468 if (min_version == 0)
469 /* Ignore DTLS1_BAD_VER */
470 min_version = DTLS1_VERSION;
471 if (max_version == 0)
472 max_version = DTLS1_2_VERSION;
473#ifdef OPENSSL_NO_DTLS1_2
474 if (max_version == DTLS1_2_VERSION)
475 max_version = DTLS1_VERSION;
476#endif
477#ifdef OPENSSL_NO_DTLS1
478 if (min_version == DTLS1_VERSION)
479 min_version = DTLS1_2_VERSION;
480#endif
79b4444d
DMSP		 481 /* Done massaging versions; do the check. */
482 if (0
c8feba72
BK		 483#ifdef OPENSSL_NO_DTLS1
484 || (DTLS_VERSION_GE(min_version, DTLS1_VERSION)
485 && DTLS_VERSION_GE(DTLS1_VERSION, max_version))
486#endif
487#ifdef OPENSSL_NO_DTLS1_2
488 || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION)
489 && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version))
490#endif
491 )
492 return 0;
493 } else {
494 /* Regular TLS version checks. */
79b4444d
DMSP		 495 if (min_version == 0)
496 min_version = SSL3_VERSION;
497 if (max_version == 0)
498 max_version = TLS1_3_VERSION;
c8feba72 499#ifdef OPENSSL_NO_TLS1_3
79b4444d
DMSP		 500 if (max_version == TLS1_3_VERSION)
501 max_version = TLS1_2_VERSION;
c8feba72
BK		 502#endif
503#ifdef OPENSSL_NO_TLS1_2
79b4444d
DMSP		 504 if (max_version == TLS1_2_VERSION)
505 max_version = TLS1_1_VERSION;
c8feba72
BK		 506#endif
507#ifdef OPENSSL_NO_TLS1_1
79b4444d
DMSP		 508 if (max_version == TLS1_1_VERSION)
509 max_version = TLS1_VERSION;
c8feba72
BK		 510#endif
511#ifdef OPENSSL_NO_TLS1
79b4444d
DMSP		 512 if (max_version == TLS1_VERSION)
513 max_version = SSL3_VERSION;
c8feba72
BK		 514#endif
515#ifdef OPENSSL_NO_SSL3
79b4444d
DMSP		 516 if (min_version == SSL3_VERSION)
517 min_version = TLS1_VERSION;
c8feba72
BK		 518#endif
519#ifdef OPENSSL_NO_TLS1
79b4444d
DMSP		 520 if (min_version == TLS1_VERSION)
521 min_version = TLS1_1_VERSION;
c8feba72
BK		 522#endif
523#ifdef OPENSSL_NO_TLS1_1
79b4444d
DMSP		 524 if (min_version == TLS1_1_VERSION)
525 min_version = TLS1_2_VERSION;
c8feba72
BK		 526#endif
527#ifdef OPENSSL_NO_TLS1_2
79b4444d
DMSP		 528 if (min_version == TLS1_2_VERSION)
529 min_version = TLS1_3_VERSION;
c8feba72 530#endif
79b4444d
DMSP		 531 /* Done massaging versions; do the check. */
532 if (0
c8feba72
BK		 533#ifdef OPENSSL_NO_SSL3
534 || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version)
535#endif
536#ifdef OPENSSL_NO_TLS1
537 || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version)
538#endif
539#ifdef OPENSSL_NO_TLS1_1
540 || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version)
541#endif
542#ifdef OPENSSL_NO_TLS1_2
543 || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version)
544#endif
545#ifdef OPENSSL_NO_TLS1_3
546 || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version)
547#endif
548 )
549 return 0;
550 }
551 return 1;
552}
553
08073700
RB		 554#if defined(__TANDEM) && defined(OPENSSL_VPROC)
555/*
556 * Define a VPROC function for HP NonStop build ssl library.
557 * This is used by platform version identification tools.
558 * Do not inline this procedure or make it static.
559 */
560# define OPENSSL_VPROC_STRING_(x) x##_SSL
561# define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
562# define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
563void OPENSSL_VPROC_FUNC(void) {}
564#endif
565
566
38b051a1 567static void clear_ciphers(SSL_CONNECTION *s)
d31fb0b5
RS		 568{
569 /* clear the current cipher */
570 ssl_clear_cipher_ctx(s);
571 ssl_clear_hash_ctx(&s->read_hash);
572 ssl_clear_hash_ctx(&s->write_hash);
573}
574
4f43d0e7 575int SSL_clear(SSL *s)
0f113f3e 576{
0f113f3e 577 if (s->method == NULL) {
6849b73c 578 ERR_raise(ERR_LIB_SSL, SSL_R_NO_METHOD_SPECIFIED);
a89325e4 579 return 0;
0f113f3e 580 }
d02b48c6 581
38b051a1
TM		 582 return s->method->ssl_reset(s);
583}
584
585int ossl_ssl_connection_reset(SSL *s)
586{
587 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
588
589 if (sc == NULL)
590 return 0;
591
592 if (ssl_clear_bad_session(sc)) {
593 SSL_SESSION_free(sc->session);
594 sc->session = NULL;
0f113f3e 595 }
38b051a1
TM		 596 SSL_SESSION_free(sc->psksession);
597 sc->psksession = NULL;
598 OPENSSL_free(sc->psksession_id);
599 sc->psksession_id = NULL;
600 sc->psksession_id_len = 0;
601 sc->hello_retry_request = 0;
602 sc->sent_tickets = 0;
d62bfb39 603
38b051a1
TM		 604 sc->error = 0;
605 sc->hit = 0;
606 sc->shutdown = 0;
d02b48c6 607
38b051a1 608 if (sc->renegotiate) {
6849b73c 609 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
0f113f3e
MC		 610 return 0;
611 }
d02b48c6 612
38b051a1 613 ossl_statem_clear(sc);
413c4f45 614
38b051a1
TM		 615 /* TODO(QUIC): Version handling not yet clear */
616 sc->version = s->method->version;
617 sc->client_version = sc->version;
618 sc->rwstate = SSL_NOTHING;
d02b48c6 619
38b051a1
TM		 620 BUF_MEM_free(sc->init_buf);
621 sc->init_buf = NULL;
622 clear_ciphers(sc);
623 sc->first_packet = 0;
d02b48c6 624
38b051a1 625 sc->key_update = SSL_KEY_UPDATE_NONE;
44c04a2e 626
38b051a1
TM		 627 EVP_MD_CTX_free(sc->pha_dgst);
628 sc->pha_dgst = NULL;
88834998 629
919ba009 630 /* Reset DANE verification result state */
38b051a1
TM		 631 sc->dane.mdpth = -1;
632 sc->dane.pdpth = -1;
633 X509_free(sc->dane.mcert);
634 sc->dane.mcert = NULL;
635 sc->dane.mtlsa = NULL;
919ba009
VD		 636
637 /* Clear the verification result peername */
38b051a1 638 X509_VERIFY_PARAM_move_peername(sc->param, NULL);
919ba009 639
29948ac8 640 /* Clear any shared connection state */
38b051a1
TM		 641 OPENSSL_free(sc->shared_sigalgs);
642 sc->shared_sigalgs = NULL;
643 sc->shared_sigalgslen = 0;
29948ac8 644
0f113f3e
MC		 645 /*
646 * Check to see if we were changed into a different method, if so, revert
24252537 647 * back.
0f113f3e 648 */
38b051a1
TM		 649 if (s->method != SSL_CONNECTION_GET_CTX(sc)->method) {
650 s->method->ssl_deinit(s);
651 s->method = SSL_CONNECTION_GET_CTX(sc)->method;
652 if (!s->method->ssl_init(s))
a89325e4 653 return 0;
b77f3ed1
MC		 654 } else {
655 if (!s->method->ssl_clear(s))
656 return 0;
657 }
33d23b87 658
38b051a1 659 RECORD_LAYER_clear(&sc->rlayer);
cffafb5f
MC		 660 BIO_free(sc->rlayer.rrlnext);
661 sc->rlayer.rrlnext = NULL;
33d23b87 662
79eebb08 663 if (!ssl_set_new_record_layer(sc,
222cf410 664 SSL_CONNECTION_IS_DTLS(sc) ? DTLS_ANY_VERSION : TLS_ANY_VERSION,
79eebb08
MC		 665 OSSL_RECORD_DIRECTION_READ,
666 OSSL_RECORD_PROTECTION_LEVEL_NONE,
667 NULL, 0, NULL, 0, NULL, 0, NULL, 0,
668 NID_undef, NULL, NULL)) {
7c293999 669 /* SSLfatal already called */
aedbb71b
MC		 670 return 0;
671 }
2b71b042
MC		 672 if (!ssl_set_new_record_layer(sc,
673 SSL_CONNECTION_IS_DTLS(sc) ? DTLS_ANY_VERSION : TLS_ANY_VERSION,
674 OSSL_RECORD_DIRECTION_WRITE,
675 OSSL_RECORD_PROTECTION_LEVEL_NONE,
676 NULL, 0, NULL, 0, NULL, 0, NULL, 0,
677 NID_undef, NULL, NULL)) {
678 /* SSLfatal already called */
679 return 0;
680 }
aedbb71b 681
a89325e4 682 return 1;
0f113f3e 683}
d02b48c6 684
dd0164e7 685#ifndef OPENSSL_NO_DEPRECATED_3_0
4f43d0e7 686/** Used to change an SSL_CTXs default SSL method type */
0f113f3e
MC		 687int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
688{
689 STACK_OF(SSL_CIPHER) *sk;
690
691 ctx->method = meth;
692
5d120511 693 if (!SSL_CTX_set_ciphersuites(ctx, OSSL_default_ciphersuites())) {
6849b73c 694 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
2340ed27
BK		 695 return 0;
696 }
a68eee67 697 sk = ssl_create_cipher_list(ctx,
f865b081
MC		 698 ctx->tls13_ciphersuites,
699 &(ctx->cipher_list),
0f113f3e 700 &(ctx->cipher_list_by_id),
5d120511 701 OSSL_default_cipher_list(), ctx->cert);
0f113f3e 702 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
6849b73c 703 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
26a7d938 704 return 0;
0f113f3e 705 }
208fb891 706 return 1;
0f113f3e 707}
dd0164e7 708#endif
d02b48c6 709
4f43d0e7 710SSL *SSL_new(SSL_CTX *ctx)
0f113f3e 711{
0f113f3e 712 if (ctx == NULL) {
6849b73c 713 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_CTX);
26a7d938 714 return NULL;
0f113f3e
MC		 715 }
716 if (ctx->method == NULL) {
6849b73c 717 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
26a7d938 718 return NULL;
0f113f3e 719 }
38b051a1
TM		 720 return ctx->method->ssl_new(ctx);
721}
722
723int ossl_ssl_init(SSL *ssl, SSL_CTX *ctx, int type)
724{
725 ssl->type = type;
726
727 ssl->references = 1;
728 ssl->lock = CRYPTO_THREAD_lock_new();
729 if (ssl->lock == NULL)
730 return 0;
731
732 SSL_CTX_up_ref(ctx);
733 ssl->ctx = ctx;
734
735 ssl->method = ctx->method;
736
737 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, ssl, &ssl->ex_data))
738 return 0;
739
740 return 1;
741}
742
743SSL *ossl_ssl_connection_new(SSL_CTX *ctx)
744{
745 SSL_CONNECTION *s;
746 SSL *ssl;
0f113f3e 747
b51bce94 748 s = OPENSSL_zalloc(sizeof(*s));
0f113f3e 749 if (s == NULL)
38b051a1 750 return NULL;
0f113f3e 751
38b051a1
TM		 752 ssl = &s->ssl;
753 if (!ossl_ssl_init(ssl, ctx, SSL_TYPE_SSL_CONNECTION)) {
e6b10c34
BE		 754 OPENSSL_free(s);
755 s = NULL;
ae3947de 756 goto err;
e6b10c34 757 }
ae3947de 758
38b051a1
TM		 759#ifndef OPENSSL_NO_QUIC
760 /* set the parent (user visible) ssl to self */
761 s->user_ssl = ssl;
762#endif
763
c036e210 764 RECORD_LAYER_init(&s->rlayer, s);
28d59af8 765
0f113f3e 766 s->options = ctx->options;
5ae4ceb9 767 s->dane.flags = ctx->dane.flags;
7946ab33
KR		 768 s->min_proto_version = ctx->min_proto_version;
769 s->max_proto_version = ctx->max_proto_version;
0f113f3e
MC		 770 s->mode = ctx->mode;
771 s->max_cert_list = ctx->max_cert_list;
3fc8d856 772 s->max_early_data = ctx->max_early_data;
4e8548e8 773 s->recv_max_early_data = ctx->recv_max_early_data;
9d0a8bb7 774 s->num_tickets = ctx->num_tickets;
e97be718 775 s->pha_enabled = ctx->pha_enabled;
0f113f3e 776
f865b081
MC		 777 /* Shallow copy of the ciphersuites stack */
778 s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
779 if (s->tls13_ciphersuites == NULL)
780 goto err;
781
2c382349
KR		 782 /*
783 * Earlier library versions used to copy the pointer to the CERT, not
784 * its contents; only when setting new parameters for the per-SSL
785 * copy, ssl_cert_new would be called (and the direct reference to
786 * the per-SSL_CTX settings would be lost, but those still were
787 * indirectly accessed for various purposes, and for that reason they
788 * used to be known as s->ctx->default_cert). Now we don't look at the
789 * SSL_CTX's CERT after having duplicated it once.
790 */
791 s->cert = ssl_cert_dup(ctx->cert);
792 if (s->cert == NULL)
793 goto err;
0f113f3e 794
52e1d7b1 795 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
0f113f3e
MC		 796 s->msg_callback = ctx->msg_callback;
797 s->msg_callback_arg = ctx->msg_callback_arg;
798 s->verify_mode = ctx->verify_mode;
799 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
c649d10d
TS		 800 s->record_padding_cb = ctx->record_padding_cb;
801 s->record_padding_arg = ctx->record_padding_arg;
802 s->block_padding = ctx->block_padding;
0f113f3e 803 s->sid_ctx_length = ctx->sid_ctx_length;
cbe29648 804 if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
380a522f 805 goto err;
0f113f3e
MC		 806 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
807 s->verify_callback = ctx->default_verify_callback;
808 s->generate_session_id = ctx->generate_session_id;
809
810 s->param = X509_VERIFY_PARAM_new();
a71edf3b 811 if (s->param == NULL)
0f113f3e
MC		 812 goto err;
813 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
0f113f3e 814 s->quiet_shutdown = ctx->quiet_shutdown;
cf72c757
F		 815
816 s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
0f113f3e 817 s->max_send_fragment = ctx->max_send_fragment;
d102d9df
MC		 818 s->split_send_fragment = ctx->split_send_fragment;
819 s->max_pipelines = ctx->max_pipelines;
cffafb5f 820 s->rlayer.default_read_buf_len = ctx->default_read_buf_len;
bf21446a 821
aff8c126
RS		 822 s->ext.debug_cb = 0;
823 s->ext.debug_arg = NULL;
824 s->ext.ticket_expected = 0;
825 s->ext.status_type = ctx->ext.status_type;
826 s->ext.status_expected = 0;
827 s->ext.ocsp.ids = NULL;
828 s->ext.ocsp.exts = NULL;
829 s->ext.ocsp.resp = NULL;
830 s->ext.ocsp.resp_len = 0;
16203f7b 831 SSL_CTX_up_ref(ctx);
222da979 832 s->session_ctx = ctx;
aff8c126
RS		 833 if (ctx->ext.ecpointformats) {
834 s->ext.ecpointformats =
835 OPENSSL_memdup(ctx->ext.ecpointformats,
836 ctx->ext.ecpointformats_len);
39a14059
MC		 837 if (!s->ext.ecpointformats) {
838 s->ext.ecpointformats_len = 0;
0f113f3e 839 goto err;
39a14059 840 }
aff8c126
RS		 841 s->ext.ecpointformats_len =
842 ctx->ext.ecpointformats_len;
843 }
844 if (ctx->ext.supportedgroups) {
845 s->ext.supportedgroups =
846 OPENSSL_memdup(ctx->ext.supportedgroups,
9e84a42d 847 ctx->ext.supportedgroups_len
b92d7b62 848 * sizeof(*ctx->ext.supportedgroups));
39a14059
MC		 849 if (!s->ext.supportedgroups) {
850 s->ext.supportedgroups_len = 0;
0f113f3e 851 goto err;
39a14059 852 }
aff8c126 853 s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
0f113f3e 854 }
dbc6268f 855
a230b26e 856#ifndef OPENSSL_NO_NEXTPROTONEG
aff8c126 857 s->ext.npn = NULL;
a230b26e 858#endif
6f017a8f 859
38b051a1
TM		 860 if (ctx->ext.alpn != NULL) {
861 s->ext.alpn = OPENSSL_malloc(ctx->ext.alpn_len);
39a14059
MC		 862 if (s->ext.alpn == NULL) {
863 s->ext.alpn_len = 0;
0f113f3e 864 goto err;
39a14059 865 }
38b051a1
TM		 866 memcpy(s->ext.alpn, ctx->ext.alpn, ctx->ext.alpn_len);
867 s->ext.alpn_len = ctx->ext.alpn_len;
0f113f3e 868 }
d02b48c6 869
696178ed 870 s->verified_chain = NULL;
0f113f3e 871 s->verify_result = X509_V_OK;
d02b48c6 872
a974e64a
MC		 873 s->default_passwd_callback = ctx->default_passwd_callback;
874 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
875
44c04a2e
MC		 876 s->key_update = SSL_KEY_UPDATE_NONE;
877
c9598459
MC		 878 s->allow_early_data_cb = ctx->allow_early_data_cb;
879 s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
880
38b051a1 881 if (!ssl->method->ssl_init(ssl))
0f113f3e 882 goto err;
d02b48c6 883
0f113f3e 884 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
bf21446a 885
38b051a1 886 if (!SSL_clear(ssl))
25a807bc 887 goto err;
58964a49 888
ddac1974 889#ifndef OPENSSL_NO_PSK
0f113f3e
MC		 890 s->psk_client_callback = ctx->psk_client_callback;
891 s->psk_server_callback = ctx->psk_server_callback;
ddac1974 892#endif
f46184bd
MC		 893 s->psk_find_session_cb = ctx->psk_find_session_cb;
894 s->psk_use_session_cb = ctx->psk_use_session_cb;
ddac1974 895
9f5a87fd
PY		 896 s->async_cb = ctx->async_cb;
897 s->async_cb_arg = ctx->async_cb_arg;
898
07bbc92c
MC		 899 s->job = NULL;
900
ed29e82a 901#ifndef OPENSSL_NO_CT
38b051a1 902 if (!SSL_set_ct_validation_callback(ssl, ctx->ct_validation_callback,
a230b26e 903 ctx->ct_validation_callback_arg))
ed29e82a
RP		 904 goto err;
905#endif
906
38b051a1 907 return ssl;
0f113f3e 908 err:
38b051a1 909 SSL_free(ssl);
6849b73c 910 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
16203f7b 911 return NULL;
0f113f3e 912}
d02b48c6 913
e417070c
RS		 914int SSL_is_dtls(const SSL *s)
915{
38b051a1
TM		 916 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
917
918 if (sc == NULL)
919 return 0;
920
921 return SSL_CONNECTION_IS_DTLS(sc) ? 1 : 0;
e417070c
RS		 922}
923
c5ebfcab 924int SSL_up_ref(SSL *s)
a18a31e4 925{
16203f7b 926 int i;
c5ebfcab 927
2f545ae4 928 if (CRYPTO_UP_REF(&s->references, &i, s->lock) <= 0)
c5ebfcab
F		 929 return 0;
930
931 REF_PRINT_COUNT("SSL", s);
932 REF_ASSERT_ISNT(i < 2);
933 return ((i > 1) ? 1 : 0);
a18a31e4
MC		 934}
935
0f113f3e
MC		 936int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
937 unsigned int sid_ctx_len)
938{
fe9edc9d 939 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
6849b73c 940 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
0f113f3e
MC		 941 return 0;
942 }
943 ctx->sid_ctx_length = sid_ctx_len;
944 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
4eb77b26
BM		 945
946 return 1;
0f113f3e 947}
4eb77b26 948
0f113f3e
MC		 949int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
950 unsigned int sid_ctx_len)
951{
38b051a1
TM		 952 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
953
954 if (sc == NULL)
955 return 0;
956
0f113f3e 957 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
6849b73c 958 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
0f113f3e
MC		 959 return 0;
960 }
38b051a1
TM		 961 sc->sid_ctx_length = sid_ctx_len;
962 memcpy(sc->sid_ctx, sid_ctx, sid_ctx_len);
b4cadc6e
BL		 963
964 return 1;
0f113f3e 965}
b4cadc6e 966
dc644fe2 967int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
0f113f3e 968{
cd3f8c1b
RS		 969 if (!CRYPTO_THREAD_write_lock(ctx->lock))
970 return 0;
0f113f3e 971 ctx->generate_session_id = cb;
16203f7b 972 CRYPTO_THREAD_unlock(ctx->lock);
0f113f3e
MC		 973 return 1;
974}
dc644fe2
GT		 975
976int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
0f113f3e 977{
38b051a1
TM		 978 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
979
980 if (sc == NULL || !CRYPTO_THREAD_write_lock(ssl->lock))
cd3f8c1b 981 return 0;
38b051a1 982 sc->generate_session_id = cb;
16203f7b 983 CRYPTO_THREAD_unlock(ssl->lock);
0f113f3e
MC		 984 return 1;
985}
dc644fe2 986
f85c9904 987int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
0f113f3e
MC		 988 unsigned int id_len)
989{
990 /*
991 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
69687aa8 992 * we can "construct" a session to give us the desired check - i.e. to
0f113f3e
MC		 993 * find if there's a session in the hash table that would conflict with
994 * any new session built out of this id/id_len and the ssl_version in use
995 * by this SSL.
996 */
997 SSL_SESSION r, *p;
38b051a1 998 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
0f113f3e 999
38b051a1 1000 if (sc == NULL || id_len > sizeof(r.session_id))
0f113f3e
MC		 1001 return 0;
1002
38b051a1 1003 r.ssl_version = sc->version;
0f113f3e
MC		 1004 r.session_id_length = id_len;
1005 memcpy(r.session_id, id, id_len);
1006
38b051a1 1007 if (!CRYPTO_THREAD_read_lock(sc->session_ctx->lock))
cd3f8c1b 1008 return 0;
38b051a1
TM		 1009 p = lh_SSL_SESSION_retrieve(sc->session_ctx->sessions, &r);
1010 CRYPTO_THREAD_unlock(sc->session_ctx->lock);
0f113f3e
MC		 1011 return (p != NULL);
1012}
dc644fe2 1013
bb7cd4e3 1014int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
0f113f3e
MC		 1015{
1016 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
1017}
bb7cd4e3
DSH		 1018
1019int SSL_set_purpose(SSL *s, int purpose)
0f113f3e 1020{
38b051a1
TM		 1021 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1022
1023 if (sc == NULL)
1024 return 0;
1025
1026 return X509_VERIFY_PARAM_set_purpose(sc->param, purpose);
0f113f3e 1027}
926a56bf 1028
bb7cd4e3 1029int SSL_CTX_set_trust(SSL_CTX *s, int trust)
0f113f3e
MC		 1030{
1031 return X509_VERIFY_PARAM_set_trust(s->param, trust);
1032}
bb7cd4e3
DSH		 1033
1034int SSL_set_trust(SSL *s, int trust)
0f113f3e 1035{
38b051a1
TM		 1036 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1037
1038 if (sc == NULL)
1039 return 0;
1040
1041 return X509_VERIFY_PARAM_set_trust(sc->param, trust);
0f113f3e 1042}
bb7cd4e3 1043
919ba009
VD		 1044int SSL_set1_host(SSL *s, const char *hostname)
1045{
38b051a1
TM		 1046 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1047
1048 if (sc == NULL)
1049 return 0;
1050
c832840e
DW		 1051 /* If a hostname is provided and parses as an IP address,
1052 * treat it as such. */
38b051a1
TM		 1053 if (hostname != NULL
1054 && X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname) == 1)
c832840e
DW		 1055 return 1;
1056
38b051a1 1057 return X509_VERIFY_PARAM_set1_host(sc->param, hostname, 0);
919ba009
VD		 1058}
1059
1060int SSL_add1_host(SSL *s, const char *hostname)
1061{
38b051a1
TM		 1062 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1063
1064 if (sc == NULL)
1065 return 0;
1066
c832840e
DW		 1067 /* If a hostname is provided and parses as an IP address,
1068 * treat it as such. */
892a9e4c
DW		 1069 if (hostname)
1070 {
1071 ASN1_OCTET_STRING *ip;
1072 char *old_ip;
1073
1074 ip = a2i_IPADDRESS(hostname);
1075 if (ip) {
1076 /* We didn't want it; only to check if it *is* an IP address */
1077 ASN1_OCTET_STRING_free(ip);
1078
38b051a1 1079 old_ip = X509_VERIFY_PARAM_get1_ip_asc(sc->param);
892a9e4c
DW		 1080 if (old_ip)
1081 {
f2bfc53b 1082 OPENSSL_free(old_ip);
892a9e4c
DW		 1083 /* There can be only one IP address */
1084 return 0;
1085 }
1086
38b051a1 1087 return X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname);
892a9e4c
DW		 1088 }
1089 }
c832840e 1090
38b051a1 1091 return X509_VERIFY_PARAM_add1_host(sc->param, hostname, 0);
919ba009
VD		 1092}
1093
1094void SSL_set_hostflags(SSL *s, unsigned int flags)
1095{
38b051a1
TM		 1096 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1097
1098 if (sc == NULL)
1099 return;
1100
1101 X509_VERIFY_PARAM_set_hostflags(sc->param, flags);
919ba009
VD		 1102}
1103
4588cb44 1104const char *SSL_get0_peername(SSL *s)
919ba009 1105{
38b051a1
TM		 1106 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1107
1108 if (sc == NULL)
1109 return NULL;
1110
1111 return X509_VERIFY_PARAM_get0_peername(sc->param);
919ba009
VD		 1112}
1113
1114int SSL_CTX_dane_enable(SSL_CTX *ctx)
1115{
1116 return dane_ctx_enable(&ctx->dane);
1117}
1118
5ae4ceb9
VD		 1119unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
1120{
1121 unsigned long orig = ctx->dane.flags;
1122
1123 ctx->dane.flags |= flags;
1124 return orig;
1125}
1126
1127unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
1128{
1129 unsigned long orig = ctx->dane.flags;
1130
1131 ctx->dane.flags &= ~flags;
1132 return orig;
1133}
1134
919ba009
VD		 1135int SSL_dane_enable(SSL *s, const char *basedomain)
1136{
38b051a1
TM		 1137 SSL_DANE *dane;
1138 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
919ba009 1139
38b051a1
TM		 1140 if (sc == NULL)
1141 return 0;
1142
1143 dane = &sc->dane;
919ba009 1144 if (s->ctx->dane.mdmax == 0) {
6849b73c 1145 ERR_raise(ERR_LIB_SSL, SSL_R_CONTEXT_NOT_DANE_ENABLED);
919ba009
VD		 1146 return 0;
1147 }
1148 if (dane->trecs != NULL) {
6849b73c 1149 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_ALREADY_ENABLED);
919ba009
VD		 1150 return 0;
1151 }
1152
8d887efa
VD		 1153 /*
1154 * Default SNI name. This rejects empty names, while set1_host below
1155 * accepts them and disables host name checks. To avoid side-effects with
1156 * invalid input, set the SNI name first.
1157 */
38b051a1 1158 if (sc->ext.hostname == NULL) {
dccd20d1 1159 if (!SSL_set_tlsext_host_name(s, basedomain)) {
6849b73c 1160 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
dccd20d1 1161 return -1;
8d887efa
VD		 1162 }
1163 }
1164
919ba009 1165 /* Primary RFC6125 reference identifier */
38b051a1 1166 if (!X509_VERIFY_PARAM_set1_host(sc->param, basedomain, 0)) {
6849b73c 1167 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
919ba009
VD		 1168 return -1;
1169 }
1170
919ba009
VD		 1171 dane->mdpth = -1;
1172 dane->pdpth = -1;
1173 dane->dctx = &s->ctx->dane;
1174 dane->trecs = sk_danetls_record_new_null();
1175
1176 if (dane->trecs == NULL) {
6849b73c 1177 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
919ba009
VD		 1178 return -1;
1179 }
1180 return 1;
1181}
1182
5ae4ceb9
VD		 1183unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
1184{
38b051a1
TM		 1185 unsigned long orig;
1186 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1187
1188 if (sc == NULL)
1189 return 0;
1190
1191 orig = sc->dane.flags;
5ae4ceb9 1192
38b051a1 1193 sc->dane.flags |= flags;
5ae4ceb9
VD		 1194 return orig;
1195}
1196
1197unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
1198{
38b051a1
TM		 1199 unsigned long orig;
1200 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5ae4ceb9 1201
38b051a1
TM		 1202 if (sc == NULL)
1203 return 0;
1204
1205 orig = sc->dane.flags;
1206
1207 sc->dane.flags &= ~flags;
5ae4ceb9
VD		 1208 return orig;
1209}
1210
919ba009
VD		 1211int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
1212{
38b051a1
TM		 1213 SSL_DANE *dane;
1214 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
919ba009 1215
38b051a1
TM		 1216 if (sc == NULL)
1217 return -1;
1218
1219 dane = &sc->dane;
1220
1221 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
919ba009
VD		 1222 return -1;
1223 if (dane->mtlsa) {
1224 if (mcert)
1225 *mcert = dane->mcert;
1226 if (mspki)
1227 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
1228 }
1229 return dane->mdpth;
1230}
1231
1232int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
6d4313f0 1233 uint8_t *mtype, const unsigned char **data, size_t *dlen)
919ba009 1234{
38b051a1
TM		 1235 SSL_DANE *dane;
1236 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
919ba009 1237
38b051a1
TM		 1238 if (sc == NULL)
1239 return -1;
1240
1241 dane = &sc->dane;
1242
1243 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
919ba009
VD		 1244 return -1;
1245 if (dane->mtlsa) {
1246 if (usage)
1247 *usage = dane->mtlsa->usage;
1248 if (selector)
1249 *selector = dane->mtlsa->selector;
1250 if (mtype)
1251 *mtype = dane->mtlsa->mtype;
1252 if (data)
1253 *data = dane->mtlsa->data;
1254 if (dlen)
1255 *dlen = dane->mtlsa->dlen;
1256 }
1257 return dane->mdpth;
1258}
1259
b9aec69a 1260SSL_DANE *SSL_get0_dane(SSL *s)
919ba009 1261{
38b051a1
TM		 1262 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1263
1264 if (sc == NULL)
1265 return NULL;
1266
1267 return &sc->dane;
919ba009
VD		 1268}
1269
1270int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
6d4313f0 1271 uint8_t mtype, const unsigned char *data, size_t dlen)
919ba009 1272{
38b051a1
TM		 1273 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1274
1275 if (sc == NULL)
1276 return 0;
1277
1278 return dane_tlsa_add(&sc->dane, usage, selector, mtype, data, dlen);
919ba009
VD		 1279}
1280
a230b26e
EK		 1281int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
1282 uint8_t ord)
919ba009
VD		 1283{
1284 return dane_mtype_set(&ctx->dane, md, mtype, ord);
1285}
1286
ccf11751 1287int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
0f113f3e
MC		 1288{
1289 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
1290}
ccf11751
DSH		 1291
1292int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
0f113f3e 1293{
38b051a1
TM		 1294 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1295
1296 if (sc == NULL)
1297 return 0;
1298
1299 return X509_VERIFY_PARAM_set1(sc->param, vpm);
0f113f3e 1300}
ccf11751 1301
7af31968 1302X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
0f113f3e
MC		 1303{
1304 return ctx->param;
1305}
7af31968
DSH		 1306
1307X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
0f113f3e 1308{
38b051a1
TM		 1309 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1310
1311 if (sc == NULL)
1312 return NULL;
1313
1314 return sc->param;
0f113f3e 1315}
7af31968 1316
a5ee80b9 1317void SSL_certs_clear(SSL *s)
0f113f3e 1318{
38b051a1
TM		 1319 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1320
1321 if (sc == NULL)
1322 return;
1323
1324 ssl_cert_clear_certs(sc->cert);
0f113f3e 1325}
a5ee80b9 1326
4f43d0e7 1327void SSL_free(SSL *s)
0f113f3e
MC		 1328{
1329 int i;
58964a49 1330
e6e9170d
RS		 1331 if (s == NULL)
1332 return;
2f545ae4 1333 CRYPTO_DOWN_REF(&s->references, &i, s->lock);
f3f1cf84 1334 REF_PRINT_COUNT("SSL", s);
0f113f3e
MC		 1335 if (i > 0)
1336 return;
f3f1cf84 1337 REF_ASSERT_ISNT(i < 0);
d02b48c6 1338
38b051a1
TM		 1339 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1340
1341 if (s->method != NULL)
1342 s->method->ssl_free(s);
1343
1344 SSL_CTX_free(s->ctx);
1345 CRYPTO_THREAD_lock_free(s->lock);
1346
1347 OPENSSL_free(s);
1348}
1349
1350void ossl_ssl_connection_free(SSL *ssl)
1351{
1352 SSL_CONNECTION *s;
1353
1354 s = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
1355 if (s == NULL)
1356 return;
1357
222561fe 1358 X509_VERIFY_PARAM_free(s->param);
919ba009 1359 dane_final(&s->dane);
0f113f3e 1360
cffafb5f 1361 RECORD_LAYER_clear(&s->rlayer);
50ec7505 1362
b77f3ed1 1363 /* Ignore return value */
2e7dc7cd
MC		 1364 ssl_free_wbio_buffer(s);
1365
65e2d672 1366 BIO_free_all(s->wbio);
50ec7505 1367 s->wbio = NULL;
325cfa85 1368 BIO_free_all(s->rbio);
50ec7505 1369 s->rbio = NULL;
0f113f3e 1370
25aaa98a 1371 BUF_MEM_free(s->init_buf);
0f113f3e
MC		 1372
1373 /* add extra stuff */
25aaa98a
RS		 1374 sk_SSL_CIPHER_free(s->cipher_list);
1375 sk_SSL_CIPHER_free(s->cipher_list_by_id);
f865b081 1376 sk_SSL_CIPHER_free(s->tls13_ciphersuites);
eee2a6a7 1377 sk_SSL_CIPHER_free(s->peer_ciphers);
0f113f3e
MC		 1378
1379 /* Make the next call work :-) */
1380 if (s->session != NULL) {
1381 ssl_clear_bad_session(s);
1382 SSL_SESSION_free(s->session);
1383 }
9368f865 1384 SSL_SESSION_free(s->psksession);
add8d0e9 1385 OPENSSL_free(s->psksession_id);
0f113f3e 1386
d31fb0b5 1387 clear_ciphers(s);
d02b48c6 1388
e0e920b1 1389 ssl_cert_free(s->cert);
29948ac8 1390 OPENSSL_free(s->shared_sigalgs);
0f113f3e 1391 /* Free up if allocated */
d02b48c6 1392
aff8c126 1393 OPENSSL_free(s->ext.hostname);
222da979 1394 SSL_CTX_free(s->session_ctx);
aff8c126 1395 OPENSSL_free(s->ext.ecpointformats);
cd0fb43c 1396 OPENSSL_free(s->ext.peer_ecpointformats);
aff8c126 1397 OPENSSL_free(s->ext.supportedgroups);
45436e61 1398 OPENSSL_free(s->ext.peer_supportedgroups);
aff8c126 1399 sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
3e41ac35 1400#ifndef OPENSSL_NO_OCSP
aff8c126 1401 sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
3e41ac35 1402#endif
ed29e82a
RP		 1403#ifndef OPENSSL_NO_CT
1404 SCT_LIST_free(s->scts);
aff8c126 1405 OPENSSL_free(s->ext.scts);
ed29e82a 1406#endif
aff8c126
RS		 1407 OPENSSL_free(s->ext.ocsp.resp);
1408 OPENSSL_free(s->ext.alpn);
cfef5027 1409 OPENSSL_free(s->ext.tls13_cookie);
94941cad
MK		 1410 if (s->clienthello != NULL)
1411 OPENSSL_free(s->clienthello->pre_proc_exts);
6b1bb98f 1412 OPENSSL_free(s->clienthello);
9d75dce3
TS		 1413 OPENSSL_free(s->pha_context);
1414 EVP_MD_CTX_free(s->pha_dgst);
0f113f3e 1415
fa7c2637 1416 sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
98732979 1417 sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
0f113f3e 1418
79b2a2f2 1419 OSSL_STACK_OF_X509_free(s->verified_chain);
696178ed 1420
38b051a1
TM		 1421 if (ssl->method != NULL)
1422 ssl->method->ssl_deinit(ssl);
7c3908dd 1423
ff75a257
MC		 1424 ASYNC_WAIT_CTX_free(s->waitctx);
1425
e481f9b9 1426#if !defined(OPENSSL_NO_NEXTPROTONEG)
aff8c126 1427 OPENSSL_free(s->ext.npn);
ee2ffc27
BL		 1428#endif
1429
e783bae2 1430#ifndef OPENSSL_NO_SRTP
25aaa98a 1431 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
0f113f3e 1432#endif
0f113f3e
MC		 1433}
1434
65e2d672 1435void SSL_set0_rbio(SSL *s, BIO *rbio)
3ffbe008 1436{
38b051a1
TM		 1437 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1438
1439 if (sc == NULL)
1440 return;
1441
1442 BIO_free_all(sc->rbio);
1443 sc->rbio = rbio;
cffafb5f 1444 sc->rlayer.rrlmethod->set1_bio(sc->rlayer.rrl, sc->rbio);
3ffbe008
MC		 1445}
1446
65e2d672 1447void SSL_set0_wbio(SSL *s, BIO *wbio)
0f113f3e 1448{
38b051a1
TM		 1449 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1450
1451 if (sc == NULL)
1452 return;
1453
0f113f3e
MC		 1454 /*
1455 * If the output buffering BIO is still in place, remove it
1456 */
38b051a1
TM		 1457 if (sc->bbio != NULL)
1458 sc->wbio = BIO_pop(sc->wbio);
2e7dc7cd 1459
38b051a1
TM		 1460 BIO_free_all(sc->wbio);
1461 sc->wbio = wbio;
2e7dc7cd
MC		 1462
1463 /* Re-attach |bbio| to the new |wbio|. */
38b051a1
TM		 1464 if (sc->bbio != NULL)
1465 sc->wbio = BIO_push(sc->bbio, sc->wbio);
0f113f3e 1466}
d02b48c6 1467
3ffbe008
MC		 1468void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1469{
65e2d672
MC		 1470 /*
1471 * For historical reasons, this function has many different cases in
1472 * ownership handling.
1473 */
1474
1475 /* If nothing has changed, do nothing */
1476 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1477 return;
1478
1479 /*
1480 * If the two arguments are equal then one fewer reference is granted by the
1481 * caller than we want to take
1482 */
1483 if (rbio != NULL && rbio == wbio)
1484 BIO_up_ref(rbio);
1485
1486 /*
1487 * If only the wbio is changed only adopt one reference.
1488 */
1489 if (rbio == SSL_get_rbio(s)) {
1490 SSL_set0_wbio(s, wbio);
1491 return;
1492 }
1493 /*
1494 * There is an asymmetry here for historical reasons. If only the rbio is
1495 * changed AND the rbio and wbio were originally different, then we only
1496 * adopt one reference.
1497 */
1498 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1499 SSL_set0_rbio(s, rbio);
1500 return;
1501 }
1502
1503 /* Otherwise, adopt both references. */
1504 SSL_set0_rbio(s, rbio);
1505 SSL_set0_wbio(s, wbio);
3ffbe008
MC		 1506}
1507
0821bcd4 1508BIO *SSL_get_rbio(const SSL *s)
0f113f3e 1509{
38b051a1
TM		 1510 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1511
1512 if (sc == NULL)
1513 return NULL;
1514
1515 return sc->rbio;
0f113f3e 1516}
d02b48c6 1517
0821bcd4 1518BIO *SSL_get_wbio(const SSL *s)
0f113f3e 1519{
38b051a1
TM		 1520 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1521
1522 if (sc == NULL)
1523 return NULL;
1524
1525 if (sc->bbio != NULL) {
2e7dc7cd
MC		 1526 /*
1527 * If |bbio| is active, the true caller-configured BIO is its
1528 * |next_bio|.
1529 */
38b051a1 1530 return BIO_next(sc->bbio);
2e7dc7cd 1531 }
38b051a1 1532 return sc->wbio;
0f113f3e 1533}
d02b48c6 1534
0821bcd4 1535int SSL_get_fd(const SSL *s)
0f113f3e 1536{
2e7dc7cd 1537 return SSL_get_rfd(s);
0f113f3e 1538}
24cbf3ef 1539
0821bcd4 1540int SSL_get_rfd(const SSL *s)
0f113f3e
MC		 1541{
1542 int ret = -1;
1543 BIO *b, *r;
1544
1545 b = SSL_get_rbio(s);
1546 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1547 if (r != NULL)
1548 BIO_get_fd(r, &ret);
26a7d938 1549 return ret;
0f113f3e 1550}
d02b48c6 1551
0821bcd4 1552int SSL_get_wfd(const SSL *s)
0f113f3e
MC		 1553{
1554 int ret = -1;
1555 BIO *b, *r;
1556
1557 b = SSL_get_wbio(s);
1558 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1559 if (r != NULL)
1560 BIO_get_fd(r, &ret);
26a7d938 1561 return ret;
0f113f3e 1562}
24cbf3ef 1563
bc36ee62 1564#ifndef OPENSSL_NO_SOCK
0f113f3e
MC		 1565int SSL_set_fd(SSL *s, int fd)
1566{
1567 int ret = 0;
1568 BIO *bio = NULL;
1569
1570 bio = BIO_new(BIO_s_socket());
1571
1572 if (bio == NULL) {
6849b73c 1573 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
0f113f3e
MC		 1574 goto err;
1575 }
1576 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1577 SSL_set_bio(s, bio, bio);
50ec7505
BP		 1578#ifndef OPENSSL_NO_KTLS
1579 /*
1580 * The new socket is created successfully regardless of ktls_enable.
1581 * ktls_enable doesn't change any functionality of the socket, except
1582 * changing the setsockopt to enable the processing of ktls_start.
1583 * Thus, it is not a problem to call it for non-TLS sockets.
1584 */
1585 ktls_enable(fd);
1586#endif /* OPENSSL_NO_KTLS */
0f113f3e
MC		 1587 ret = 1;
1588 err:
26a7d938 1589 return ret;
0f113f3e 1590}
d02b48c6 1591
0f113f3e
MC		 1592int SSL_set_wfd(SSL *s, int fd)
1593{
2e7dc7cd 1594 BIO *rbio = SSL_get_rbio(s);
0f113f3e 1595
2e7dc7cd
MC		 1596 if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET
1597 || (int)BIO_get_fd(rbio, NULL) != fd) {
1598 BIO *bio = BIO_new(BIO_s_socket());
0f113f3e
MC		 1599
1600 if (bio == NULL) {
6849b73c 1601 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
2e7dc7cd 1602 return 0;
0f113f3e
MC		 1603 }
1604 BIO_set_fd(bio, fd, BIO_NOCLOSE);
65e2d672 1605 SSL_set0_wbio(s, bio);
50ec7505
BP		 1606#ifndef OPENSSL_NO_KTLS
1607 /*
1608 * The new socket is created successfully regardless of ktls_enable.
1609 * ktls_enable doesn't change any functionality of the socket, except
1610 * changing the setsockopt to enable the processing of ktls_start.
1611 * Thus, it is not a problem to call it for non-TLS sockets.
1612 */
1613 ktls_enable(fd);
1614#endif /* OPENSSL_NO_KTLS */
2e7dc7cd 1615 } else {
65e2d672
MC		 1616 BIO_up_ref(rbio);
1617 SSL_set0_wbio(s, rbio);
2e7dc7cd
MC		 1618 }
1619 return 1;
0f113f3e
MC		 1620}
1621
1622int SSL_set_rfd(SSL *s, int fd)
1623{
2e7dc7cd 1624 BIO *wbio = SSL_get_wbio(s);
0f113f3e 1625
2e7dc7cd
MC		 1626 if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET
1627 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
1628 BIO *bio = BIO_new(BIO_s_socket());
0f113f3e
MC		 1629
1630 if (bio == NULL) {
6849b73c 1631 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
2e7dc7cd 1632 return 0;
0f113f3e
MC		 1633 }
1634 BIO_set_fd(bio, fd, BIO_NOCLOSE);
65e2d672 1635 SSL_set0_rbio(s, bio);
2e7dc7cd 1636 } else {
65e2d672
MC		 1637 BIO_up_ref(wbio);
1638 SSL_set0_rbio(s, wbio);
2e7dc7cd
MC		 1639 }
1640
1641 return 1;
0f113f3e
MC		 1642}
1643#endif
ca03109c
BM		 1644
1645/* return length of latest Finished message we sent, copy to 'buf' */
0821bcd4 1646size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
0f113f3e
MC		 1647{
1648 size_t ret = 0;
38b051a1
TM		 1649 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1650
1651 if (sc == NULL)
1652 return 0;
0f113f3e 1653
38b051a1 1654 ret = sc->s3.tmp.finish_md_len;
555cbb32
TS		 1655 if (count > ret)
1656 count = ret;
38b051a1 1657 memcpy(buf, sc->s3.tmp.finish_md, count);
0f113f3e
MC		 1658 return ret;
1659}
ca03109c
BM		 1660
1661/* return length of latest Finished message we expected, copy to 'buf' */
0821bcd4 1662size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
0f113f3e
MC		 1663{
1664 size_t ret = 0;
38b051a1 1665 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
ca03109c 1666
38b051a1
TM		 1667 if (sc == NULL)
1668 return 0;
1669
1670 ret = sc->s3.tmp.peer_finish_md_len;
555cbb32
TS		 1671 if (count > ret)
1672 count = ret;
38b051a1 1673 memcpy(buf, sc->s3.tmp.peer_finish_md, count);
0f113f3e
MC		 1674 return ret;
1675}
ca03109c 1676
0821bcd4 1677int SSL_get_verify_mode(const SSL *s)
0f113f3e 1678{
38b051a1
TM		 1679 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1680
1681 if (sc == NULL)
1682 return 0;
1683
1684 return sc->verify_mode;
0f113f3e 1685}
d02b48c6 1686
0821bcd4 1687int SSL_get_verify_depth(const SSL *s)
0f113f3e 1688{
38b051a1
TM		 1689 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1690
1691 if (sc == NULL)
1692 return 0;
1693
1694 return X509_VERIFY_PARAM_get_depth(sc->param);
0f113f3e 1695}
7f89714e 1696
0f113f3e 1697int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
38b051a1
TM		 1698 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1699
1700 if (sc == NULL)
1701 return NULL;
1702
1703 return sc->verify_callback;
0f113f3e 1704}
d02b48c6 1705
0821bcd4 1706int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
0f113f3e 1707{
26a7d938 1708 return ctx->verify_mode;
0f113f3e 1709}
d02b48c6 1710
0821bcd4 1711int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
0f113f3e
MC		 1712{
1713 return X509_VERIFY_PARAM_get_depth(ctx->param);
1714}
1715
1716int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
26a7d938 1717 return ctx->default_verify_callback;
0f113f3e
MC		 1718}
1719
1720void SSL_set_verify(SSL *s, int mode,
1721 int (*callback) (int ok, X509_STORE_CTX *ctx))
1722{
38b051a1
TM		 1723 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1724
1725 if (sc == NULL)
1726 return;
1727
1728 sc->verify_mode = mode;
0f113f3e 1729 if (callback != NULL)
38b051a1 1730 sc->verify_callback = callback;
0f113f3e
MC		 1731}
1732
1733void SSL_set_verify_depth(SSL *s, int depth)
1734{
38b051a1
TM		 1735 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1736
1737 if (sc == NULL)
1738 return;
1739
1740 X509_VERIFY_PARAM_set_depth(sc->param, depth);
0f113f3e
MC		 1741}
1742
1743void SSL_set_read_ahead(SSL *s, int yes)
1744{
38b051a1 1745 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4566dae7 1746 OSSL_PARAM options[2], *opts = options;
38b051a1
TM		 1747
1748 if (sc == NULL)
1749 return;
1750
1751 RECORD_LAYER_set_read_ahead(&sc->rlayer, yes);
4566dae7
MC		 1752
1753 *opts++ = OSSL_PARAM_construct_int(OSSL_LIBSSL_RECORD_LAYER_PARAM_READ_AHEAD,
1754 &sc->rlayer.read_ahead);
1755 *opts = OSSL_PARAM_construct_end();
1756
1757 /* Ignore return value */
1758 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
0f113f3e 1759}
d02b48c6 1760
0821bcd4 1761int SSL_get_read_ahead(const SSL *s)
0f113f3e 1762{
38b051a1
TM		 1763 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1764
1765 if (sc == NULL)
1766 return 0;
1767
1768 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
0f113f3e 1769}
d02b48c6 1770
0821bcd4 1771int SSL_pending(const SSL *s)
0f113f3e 1772{
8b0e934a
MC		 1773 size_t pending = s->method->ssl_pending(s);
1774
0f113f3e
MC		 1775 /*
1776 * SSL_pending cannot work properly if read-ahead is enabled
1777 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1778 * impossible to fix since SSL_pending cannot report errors that may be
1779 * observed while scanning the new data. (Note that SSL_pending() is
1780 * often used as a boolean value, so we'd better not return -1.)
8b0e934a
MC		 1781 *
1782 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1783 * we just return INT_MAX.
0f113f3e 1784 */
348240c6 1785 return pending < INT_MAX ? (int)pending : INT_MAX;
0f113f3e 1786}
d02b48c6 1787
49580f25
MC		 1788int SSL_has_pending(const SSL *s)
1789{
1790 /*
1791 * Similar to SSL_pending() but returns a 1 to indicate that we have
6d6b295a
MC		 1792 * processed or unprocessed data available or 0 otherwise (as opposed to the
1793 * number of bytes available). Unlike SSL_pending() this will take into
1794 * account read_ahead data. A 1 return simply indicates that we have data.
1795 * That data may not result in any application data, or we may fail to parse
1796 * the records for some reason.
49580f25 1797 */
38b051a1
TM		 1798 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1799
6d6b295a
MC		 1800 /* Check buffered app data if any first */
1801 if (SSL_CONNECTION_IS_DTLS(sc)) {
eddb067e 1802 TLS_RECORD *rdata;
6d6b295a
MC		 1803 pitem *item, *iter;
1804
1805 iter = pqueue_iterator(sc->rlayer.d->buffered_app_data.q);
1806 while ((item = pqueue_next(&iter)) != NULL) {
1807 rdata = item->data;
eddb067e 1808 if (rdata->length > 0)
6d6b295a
MC		 1809 return 1;
1810 }
1811 }
38b051a1
TM		 1812
1813 if (RECORD_LAYER_processed_read_pending(&sc->rlayer))
49580f25
MC		 1814 return 1;
1815
38b051a1 1816 return RECORD_LAYER_read_pending(&sc->rlayer);
49580f25
MC		 1817}
1818
8c2bfd25 1819X509 *SSL_get1_peer_certificate(const SSL *s)
0f113f3e 1820{
8c2bfd25 1821 X509 *r = SSL_get0_peer_certificate(s);
d02b48c6 1822
8c2bfd25
TS		 1823 if (r != NULL)
1824 X509_up_ref(r);
0f113f3e 1825
26a7d938 1826 return r;
0f113f3e 1827}
d02b48c6 1828
8c2bfd25
TS		 1829X509 *SSL_get0_peer_certificate(const SSL *s)
1830{
38b051a1
TM		 1831 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1832
1833 if (sc == NULL)
1834 return NULL;
1835
1836 if (sc->session == NULL)
8c2bfd25
TS		 1837 return NULL;
1838 else
38b051a1 1839 return sc->session->peer;
8c2bfd25
TS		 1840}
1841
0821bcd4 1842STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
0f113f3e
MC		 1843{
1844 STACK_OF(X509) *r;
38b051a1 1845 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
0f113f3e 1846
38b051a1
TM		 1847 if (sc == NULL)
1848 return NULL;
1849
1850 if (sc->session == NULL)
0f113f3e
MC		 1851 r = NULL;
1852 else
38b051a1 1853 r = sc->session->peer_chain;
0f113f3e
MC		 1854
1855 /*
1856 * If we are a client, cert_chain includes the peer's own certificate; if
1857 * we are a server, it does not.
1858 */
1859
26a7d938 1860 return r;
0f113f3e
MC		 1861}
1862
1863/*
1864 * Now in theory, since the calling process own 't' it should be safe to
1865 * modify. We need to be able to read f without being hassled
1866 */
17dd65e6 1867int SSL_copy_session_id(SSL *t, const SSL *f)
0f113f3e 1868{
16203f7b 1869 int i;
38b051a1
TM		 1870 /* TODO(QUIC): Do we want to support this for QUIC connections? */
1871 SSL_CONNECTION *tsc = SSL_CONNECTION_FROM_SSL_ONLY(t);
1872 const SSL_CONNECTION *fsc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(f);
1873
1874 if (tsc == NULL || fsc == NULL)
1875 return 0;
1876
3e6a0d57 1877 /* Do we need to do SSL locking? */
61986d32 1878 if (!SSL_set_session(t, SSL_get_session(f))) {
17dd65e6 1879 return 0;
69f68237 1880 }
0f113f3e
MC		 1881
1882 /*
87d9cafa 1883 * what if we are setup for one protocol version but want to talk another
0f113f3e
MC		 1884 */
1885 if (t->method != f->method) {
38b051a1 1886 t->method->ssl_deinit(t);
919ba009 1887 t->method = f->method;
38b051a1 1888 if (t->method->ssl_init(t) == 0)
919ba009 1889 return 0;
0f113f3e
MC		 1890 }
1891
38b051a1
TM		 1892 CRYPTO_UP_REF(&fsc->cert->references, &i, fsc->cert->lock);
1893 ssl_cert_free(tsc->cert);
1894 tsc->cert = fsc->cert;
1895 if (!SSL_set_session_id_context(t, fsc->sid_ctx, (int)fsc->sid_ctx_length)) {
17dd65e6 1896 return 0;
69f68237 1897 }
17dd65e6
MC		 1898
1899 return 1;
0f113f3e 1900}
d02b48c6 1901
58964a49 1902/* Fix this so it checks all the valid key/cert options */
0821bcd4 1903int SSL_CTX_check_private_key(const SSL_CTX *ctx)
0f113f3e 1904{
a230b26e 1905 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
6849b73c 1906 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
26a7d938 1907 return 0;
0f113f3e
MC		 1908 }
1909 if (ctx->cert->key->privatekey == NULL) {
6849b73c 1910 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
26a7d938 1911 return 0;
0f113f3e 1912 }
26a7d938
K		 1913 return X509_check_private_key
1914 (ctx->cert->key->x509, ctx->cert->key->privatekey);
0f113f3e 1915}
d02b48c6 1916
58964a49 1917/* Fix this function so that it takes an optional type parameter */
0821bcd4 1918int SSL_check_private_key(const SSL *ssl)
0f113f3e 1919{
38b051a1
TM		 1920 const SSL_CONNECTION *sc;
1921
1922 if ((sc = SSL_CONNECTION_FROM_CONST_SSL(ssl)) == NULL) {
6849b73c 1923 ERR_raise(ERR_LIB_SSL, ERR_R_PASSED_NULL_PARAMETER);
26a7d938 1924 return 0;
0f113f3e 1925 }
38b051a1 1926 if (sc->cert->key->x509 == NULL) {
6849b73c 1927 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
26a7d938 1928 return 0;
0f113f3e 1929 }
38b051a1 1930 if (sc->cert->key->privatekey == NULL) {
6849b73c 1931 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
26a7d938 1932 return 0;
0f113f3e 1933 }
38b051a1
TM		 1934 return X509_check_private_key(sc->cert->key->x509,
1935 sc->cert->key->privatekey);
0f113f3e 1936}
d02b48c6 1937
07bbc92c
MC		 1938int SSL_waiting_for_async(SSL *s)
1939{
38b051a1
TM		 1940 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1941
1942 if (sc == NULL)
1943 return 0;
1944
1945 if (sc->job)
82676094
MC		 1946 return 1;
1947
07bbc92c
MC		 1948 return 0;
1949}
1950
ff75a257 1951int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
f4da39d2 1952{
38b051a1
TM		 1953 ASYNC_WAIT_CTX *ctx;
1954 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
ff75a257 1955
38b051a1
TM		 1956 if (sc == NULL)
1957 return 0;
1958
1959 if ((ctx = sc->waitctx) == NULL)
ff75a257
MC		 1960 return 0;
1961 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
1962}
f4da39d2 1963
ff75a257
MC		 1964int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
1965 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
1966{
38b051a1
TM		 1967 ASYNC_WAIT_CTX *ctx;
1968 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
ff75a257 1969
38b051a1
TM		 1970 if (sc == NULL)
1971 return 0;
1972
1973 if ((ctx = sc->waitctx) == NULL)
ff75a257
MC		 1974 return 0;
1975 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
1976 numdelfds);
f4da39d2
MC		 1977}
1978
9f5a87fd
PY		 1979int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback)
1980{
1981 ctx->async_cb = callback;
1982 return 1;
1983}
1984
1985int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg)
1986{
1987 ctx->async_cb_arg = arg;
1988 return 1;
1989}
1990
1991int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback)
1992{
38b051a1
TM		 1993 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1994
1995 if (sc == NULL)
1996 return 0;
1997
1998 sc->async_cb = callback;
9f5a87fd
PY		 1999 return 1;
2000}
2001
2002int SSL_set_async_callback_arg(SSL *s, void *arg)
2003{
38b051a1
TM		 2004 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2005
2006 if (sc == NULL)
2007 return 0;
2008
2009 sc->async_cb_arg = arg;
9f5a87fd
PY		 2010 return 1;
2011}
2012
2013int SSL_get_async_status(SSL *s, int *status)
2014{
38b051a1
TM		 2015 ASYNC_WAIT_CTX *ctx;
2016 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
9f5a87fd 2017
38b051a1
TM		 2018 if (sc == NULL)
2019 return 0;
2020
2021 if ((ctx = sc->waitctx) == NULL)
9f5a87fd
PY		 2022 return 0;
2023 *status = ASYNC_WAIT_CTX_get_status(ctx);
2024 return 1;
2025}
2026
4f43d0e7 2027int SSL_accept(SSL *s)
0f113f3e 2028{
38b051a1
TM		 2029 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2030
2031 if (sc == NULL)
2032 return 0;
2033
2034 if (sc->handshake_func == NULL) {
0f113f3e
MC		 2035 /* Not properly initialized yet */
2036 SSL_set_accept_state(s);
07bbc92c 2037 }
add2f5ca
MC		 2038
2039 return SSL_do_handshake(s);
0f113f3e 2040}
d02b48c6 2041
4f43d0e7 2042int SSL_connect(SSL *s)
0f113f3e 2043{
38b051a1
TM		 2044 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2045
2046 if (sc == NULL)
2047 return 0;
2048
2049 if (sc->handshake_func == NULL) {
0f113f3e
MC		 2050 /* Not properly initialized yet */
2051 SSL_set_connect_state(s);
add2f5ca 2052 }
b31b04d9 2053
add2f5ca 2054 return SSL_do_handshake(s);
0f113f3e 2055}
d02b48c6 2056
0821bcd4 2057long SSL_get_default_timeout(const SSL *s)
0f113f3e 2058{
f0131dc0 2059 return (long int)ossl_time2seconds(s->method->get_timeout());
0f113f3e
MC		 2060}
2061
9f5a87fd
PY		 2062static int ssl_async_wait_ctx_cb(void *arg)
2063{
2064 SSL *s = (SSL *)arg;
38b051a1 2065 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
9f5a87fd 2066
38b051a1
TM		 2067 if (sc == NULL)
2068 return 0;
2069
2070 return sc->async_cb(s, sc->async_cb_arg);
9f5a87fd
PY		 2071}
2072
7fecbf6f 2073static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
a230b26e
EK		 2074 int (*func) (void *))
2075{
add2f5ca 2076 int ret;
38b051a1
TM		 2077 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2078
2079 if (sc == NULL)
2080 return 0;
2081
2082 if (sc->waitctx == NULL) {
2083 sc->waitctx = ASYNC_WAIT_CTX_new();
2084 if (sc->waitctx == NULL)
ff75a257 2085 return -1;
38b051a1 2086 if (sc->async_cb != NULL
9f5a87fd 2087 && !ASYNC_WAIT_CTX_set_callback
38b051a1 2088 (sc->waitctx, ssl_async_wait_ctx_cb, s))
9f5a87fd 2089 return -1;
ff75a257 2090 }
07f620e3 2091
38b051a1
TM		 2092 sc->rwstate = SSL_NOTHING;
2093 switch (ASYNC_start_job(&sc->job, sc->waitctx, &ret, func, args,
a230b26e 2094 sizeof(struct ssl_async_args))) {
add2f5ca 2095 case ASYNC_ERR:
38b051a1 2096 sc->rwstate = SSL_NOTHING;
6849b73c 2097 ERR_raise(ERR_LIB_SSL, SSL_R_FAILED_TO_INIT_ASYNC);
add2f5ca
MC		 2098 return -1;
2099 case ASYNC_PAUSE:
38b051a1 2100 sc->rwstate = SSL_ASYNC_PAUSED;
add2f5ca 2101 return -1;
fc7f190c 2102 case ASYNC_NO_JOBS:
38b051a1 2103 sc->rwstate = SSL_ASYNC_NO_JOBS;
fc7f190c 2104 return -1;
add2f5ca 2105 case ASYNC_FINISH:
38b051a1 2106 sc->job = NULL;
add2f5ca
MC		 2107 return ret;
2108 default:
38b051a1 2109 sc->rwstate = SSL_NOTHING;
6849b73c 2110 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
add2f5ca
MC		 2111 /* Shouldn't happen */
2112 return -1;
2113 }
2114}
07bbc92c 2115
add2f5ca 2116static int ssl_io_intern(void *vargs)
07bbc92c
MC		 2117{
2118 struct ssl_async_args *args;
2119 SSL *s;
2120 void *buf;
348240c6 2121 size_t num;
38b051a1 2122 SSL_CONNECTION *sc;
07bbc92c
MC		 2123
2124 args = (struct ssl_async_args *)vargs;
2125 s = args->s;
2126 buf = args->buf;
2127 num = args->num;
38b051a1
TM		 2128 if ((sc = SSL_CONNECTION_FROM_SSL(s)) == NULL)
2129 return -1;
2130
ec447924
MC		 2131 switch (args->type) {
2132 case READFUNC:
38b051a1 2133 return args->f.func_read(s, buf, num, &sc->asyncrw);
ec447924 2134 case WRITEFUNC:
38b051a1 2135 return args->f.func_write(s, buf, num, &sc->asyncrw);
ec447924
MC		 2136 case OTHERFUNC:
2137 return args->f.func_other(s);
2138 }
2139 return -1;
07bbc92c
MC		 2140}
2141
4ee7d3f9 2142int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
0f113f3e 2143{
38b051a1
TM		 2144 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2145
2146 if (sc == NULL)
2147 return -1;
2148
2149 if (sc->handshake_func == NULL) {
6849b73c 2150 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
0f113f3e
MC		 2151 return -1;
2152 }
2153
38b051a1
TM		 2154 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2155 sc->rwstate = SSL_NOTHING;
4ee7d3f9 2156 return 0;
0f113f3e 2157 }
07bbc92c 2158
38b051a1
TM		 2159 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2160 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
6849b73c 2161 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
0a5ece5b
MC		 2162 return 0;
2163 }
564547e4
MC		 2164 /*
2165 * If we are a client and haven't received the ServerHello etc then we
2166 * better do that
2167 */
38b051a1 2168 ossl_statem_check_finish_init(sc, 0);
0a5ece5b 2169
38b051a1 2170 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
add2f5ca 2171 struct ssl_async_args args;
eda75751 2172 int ret;
add2f5ca
MC		 2173
2174 args.s = s;
2175 args.buf = buf;
2176 args.num = num;
ec447924
MC		 2177 args.type = READFUNC;
2178 args.f.func_read = s->method->ssl_read;
add2f5ca 2179
eda75751 2180 ret = ssl_start_async_job(s, &args, ssl_io_intern);
38b051a1 2181 *readbytes = sc->asyncrw;
eda75751 2182 return ret;
07bbc92c 2183 } else {
54105ddd 2184 return s->method->ssl_read(s, buf, num, readbytes);
07bbc92c 2185 }
0f113f3e
MC		 2186}
2187
4ee7d3f9 2188int SSL_read(SSL *s, void *buf, int num)
eda75751
MC		 2189{
2190 int ret;
54105ddd 2191 size_t readbytes;
eda75751
MC		 2192
2193 if (num < 0) {
6849b73c 2194 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
eda75751
MC		 2195 return -1;
2196 }
2197
4ee7d3f9 2198 ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
eda75751
MC		 2199
2200 /*
2201 * The cast is safe here because ret should be <= INT_MAX because num is
2202 * <= INT_MAX
2203 */
2204 if (ret > 0)
54105ddd 2205 ret = (int)readbytes;
eda75751
MC		 2206
2207 return ret;
2208}
2209
4ee7d3f9
KR		 2210int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2211{
2212 int ret = ssl_read_internal(s, buf, num, readbytes);
2213
2214 if (ret < 0)
2215 ret = 0;
2216 return ret;
2217}
2218
f533fbd4 2219int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
d781d247
MC		 2220{
2221 int ret;
38b051a1
TM		 2222 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2223
2224 /* TODO(QUIC): This will need special handling for QUIC */
2225 if (sc == NULL)
2226 return 0;
d781d247 2227
38b051a1 2228 if (!sc->server) {
6849b73c 2229 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
f533fbd4 2230 return SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 2231 }
2232
38b051a1 2233 switch (sc->early_data_state) {
d781d247
MC		 2234 case SSL_EARLY_DATA_NONE:
2235 if (!SSL_in_before(s)) {
6849b73c 2236 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
f533fbd4 2237 return SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 2238 }
2239 /* fall through */
2240
2241 case SSL_EARLY_DATA_ACCEPT_RETRY:
38b051a1 2242 sc->early_data_state = SSL_EARLY_DATA_ACCEPTING;
d781d247
MC		 2243 ret = SSL_accept(s);
2244 if (ret <= 0) {
2245 /* NBIO or error */
38b051a1 2246 sc->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
f533fbd4 2247 return SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 2248 }
2249 /* fall through */
2250
2251 case SSL_EARLY_DATA_READ_RETRY:
38b051a1
TM		 2252 if (sc->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
2253 sc->early_data_state = SSL_EARLY_DATA_READING;
d781d247
MC		 2254 ret = SSL_read_ex(s, buf, num, readbytes);
2255 /*
ef6c191b
MC		 2256 * State machine will update early_data_state to
2257 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
2258 * message
d781d247 2259 */
38b051a1 2260 if (ret > 0 || (ret <= 0 && sc->early_data_state
d781d247 2261 != SSL_EARLY_DATA_FINISHED_READING)) {
38b051a1 2262 sc->early_data_state = SSL_EARLY_DATA_READ_RETRY;
f533fbd4
MC		 2263 return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
2264 : SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 2265 }
2266 } else {
38b051a1 2267 sc->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
d781d247
MC		 2268 }
2269 *readbytes = 0;
f533fbd4 2270 return SSL_READ_EARLY_DATA_FINISH;
d781d247
MC		 2271
2272 default:
6849b73c 2273 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
f533fbd4 2274 return SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 2275 }
2276}
2277
f5b519c4 2278int SSL_get_early_data_status(const SSL *s)
1ea4d09a 2279{
38b051a1
TM		 2280 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
2281
2282 /* TODO(QUIC): This will need special handling for QUIC */
2283 if (sc == NULL)
2284 return 0;
2285
2286 return sc->ext.early_data;
1ea4d09a
MC		 2287}
2288
4ee7d3f9 2289static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
0f113f3e 2290{
38b051a1
TM		 2291 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2292
2293 if (sc == NULL)
2294 return 0;
2295
2296 if (sc->handshake_func == NULL) {
6849b73c 2297 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
0f113f3e
MC		 2298 return -1;
2299 }
2300
38b051a1 2301 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
4ee7d3f9 2302 return 0;
0f113f3e 2303 }
38b051a1 2304 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
add2f5ca 2305 struct ssl_async_args args;
eda75751 2306 int ret;
0f113f3e 2307
add2f5ca
MC		 2308 args.s = s;
2309 args.buf = buf;
2310 args.num = num;
ec447924
MC		 2311 args.type = READFUNC;
2312 args.f.func_read = s->method->ssl_peek;
07bbc92c 2313
eda75751 2314 ret = ssl_start_async_job(s, &args, ssl_io_intern);
38b051a1 2315 *readbytes = sc->asyncrw;
eda75751 2316 return ret;
add2f5ca 2317 } else {
54105ddd 2318 return s->method->ssl_peek(s, buf, num, readbytes);
add2f5ca 2319 }
07bbc92c
MC		 2320}
2321
4ee7d3f9 2322int SSL_peek(SSL *s, void *buf, int num)
7ee8627f
MC		 2323{
2324 int ret;
4ee7d3f9 2325 size_t readbytes;
7ee8627f
MC		 2326
2327 if (num < 0) {
6849b73c 2328 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
7ee8627f
MC		 2329 return -1;
2330 }
2331
4ee7d3f9 2332 ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
7ee8627f
MC		 2333
2334 /*
2335 * The cast is safe here because ret should be <= INT_MAX because num is
2336 * <= INT_MAX
2337 */
2338 if (ret > 0)
4ee7d3f9 2339 ret = (int)readbytes;
7ee8627f
MC		 2340
2341 return ret;
2342}
2343
4ee7d3f9
KR		 2344
2345int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2346{
2347 int ret = ssl_peek_internal(s, buf, num, readbytes);
2348
2349 if (ret < 0)
2350 ret = 0;
2351 return ret;
2352}
2353
2354int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written)
0f113f3e 2355{
38b051a1
TM		 2356 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2357
2358 if (sc == NULL)
2359 return 0;
2360
2361 if (sc->handshake_func == NULL) {
6849b73c 2362 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
0f113f3e
MC		 2363 return -1;
2364 }
2365
38b051a1
TM		 2366 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2367 sc->rwstate = SSL_NOTHING;
6849b73c 2368 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
4ee7d3f9 2369 return -1;
0f113f3e 2370 }
07bbc92c 2371
38b051a1
TM		 2372 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2373 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
2374 || sc->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
6849b73c 2375 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
49e7fe12 2376 return 0;
0a5ece5b 2377 }
564547e4 2378 /* If we are a client and haven't sent the Finished we better do that */
38b051a1 2379 ossl_statem_check_finish_init(sc, 1);
49e7fe12 2380
38b051a1 2381 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
7ee8627f 2382 int ret;
add2f5ca
MC		 2383 struct ssl_async_args args;
2384
2385 args.s = s;
2386 args.buf = (void *)buf;
2387 args.num = num;
ec447924
MC		 2388 args.type = WRITEFUNC;
2389 args.f.func_write = s->method->ssl_write;
add2f5ca 2390
7ee8627f 2391 ret = ssl_start_async_job(s, &args, ssl_io_intern);
38b051a1 2392 *written = sc->asyncrw;
7ee8627f 2393 return ret;
07bbc92c 2394 } else {
7ee8627f 2395 return s->method->ssl_write(s, buf, num, written);
07bbc92c 2396 }
0f113f3e 2397}
d02b48c6 2398
7c3a7561
BP		 2399ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size, int flags)
2400{
2401 ossl_ssize_t ret;
38b051a1 2402 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7c3a7561 2403
38b051a1
TM		 2404 if (sc == NULL)
2405 return 0;
2406
2407 if (sc->handshake_func == NULL) {
6849b73c 2408 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
7c3a7561
BP		 2409 return -1;
2410 }
2411
38b051a1
TM		 2412 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2413 sc->rwstate = SSL_NOTHING;
6849b73c 2414 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
7c3a7561
BP		 2415 return -1;
2416 }
2417
38b051a1 2418 if (!BIO_get_ktls_send(sc->wbio)) {
6849b73c 2419 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
7c3a7561
BP		 2420 return -1;
2421 }
2422
2423 /* If we have an alert to send, lets send it */
38b051a1 2424 if (sc->s3.alert_dispatch) {
7c3a7561
BP		 2425 ret = (ossl_ssize_t)s->method->ssl_dispatch_alert(s);
2426 if (ret <= 0) {
2427 /* SSLfatal() already called if appropriate */
2428 return ret;
2429 }
2430 /* if it went, fall through and send more stuff */
2431 }
2432
38b051a1
TM		 2433 sc->rwstate = SSL_WRITING;
2434 if (BIO_flush(sc->wbio) <= 0) {
2435 if (!BIO_should_retry(sc->wbio)) {
2436 sc->rwstate = SSL_NOTHING;
7c3a7561
BP		 2437 } else {
2438#ifdef EAGAIN
2439 set_sys_error(EAGAIN);
2440#endif
2441 }
2442 return -1;
2443 }
2444
712c0942 2445#ifdef OPENSSL_NO_KTLS
fa7a8074
RL		 2446 ERR_raise_data(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR,
2447 "can't call ktls_sendfile(), ktls disabled");
712c0942 2448 return -1;
7c3a7561 2449#else
712c0942 2450 ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags);
7c3a7561
BP		 2451 if (ret < 0) {
2452#if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2453 if ((get_last_sys_error() == EAGAIN) ||
2454 (get_last_sys_error() == EINTR) ||
2455 (get_last_sys_error() == EBUSY))
38b051a1 2456 BIO_set_retry_write(sc->wbio);
7c3a7561
BP		 2457 else
2458#endif
6849b73c 2459 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
7c3a7561
BP		 2460 return ret;
2461 }
38b051a1 2462 sc->rwstate = SSL_NOTHING;
7c3a7561 2463 return ret;
712c0942 2464#endif
7c3a7561
BP		 2465}
2466
4ee7d3f9
KR		 2467int SSL_write(SSL *s, const void *buf, int num)
2468{
2469 int ret;
2470 size_t written;
2471
2472 if (num < 0) {
6849b73c 2473 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
4ee7d3f9
KR		 2474 return -1;
2475 }
2476
2477 ret = ssl_write_internal(s, buf, (size_t)num, &written);
2478
2479 /*
2480 * The cast is safe here because ret should be <= INT_MAX because num is
2481 * <= INT_MAX
2482 */
2483 if (ret > 0)
2484 ret = (int)written;
2485
2486 return ret;
2487}
2488
2489int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
2490{
2491 int ret = ssl_write_internal(s, buf, num, written);
2492
2493 if (ret < 0)
2494 ret = 0;
2495 return ret;
2496}
2497
0665b4ed 2498int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
49e7fe12 2499{
a0cb628b 2500 int ret, early_data_state;
2a8db717 2501 size_t writtmp;
f7414b08 2502 uint32_t partialwrite;
38b051a1
TM		 2503 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2504
2505 /* TODO(QUIC): This will need special handling for QUIC */
2506 if (sc == NULL)
2507 return 0;
49e7fe12 2508
38b051a1 2509 switch (sc->early_data_state) {
49e7fe12 2510 case SSL_EARLY_DATA_NONE:
38b051a1 2511 if (sc->server
09f28874 2512 || !SSL_in_before(s)
38b051a1
TM		 2513 || ((sc->session == NULL || sc->session->ext.max_early_data == 0)
2514 && (sc->psk_use_session_cb == NULL))) {
6849b73c 2515 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
49e7fe12
MC		 2516 return 0;
2517 }
2518 /* fall through */
2519
2520 case SSL_EARLY_DATA_CONNECT_RETRY:
38b051a1 2521 sc->early_data_state = SSL_EARLY_DATA_CONNECTING;
49e7fe12
MC		 2522 ret = SSL_connect(s);
2523 if (ret <= 0) {
2524 /* NBIO or error */
38b051a1 2525 sc->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
49e7fe12
MC		 2526 return 0;
2527 }
2528 /* fall through */
2529
2530 case SSL_EARLY_DATA_WRITE_RETRY:
38b051a1 2531 sc->early_data_state = SSL_EARLY_DATA_WRITING;
f7414b08
MC		 2532 /*
2533 * We disable partial write for early data because we don't keep track
2534 * of how many bytes we've written between the SSL_write_ex() call and
2535 * the flush if the flush needs to be retried)
2536 */
38b051a1
TM		 2537 partialwrite = sc->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
2538 sc->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
2a8db717 2539 ret = SSL_write_ex(s, buf, num, &writtmp);
38b051a1 2540 sc->mode |= partialwrite;
2a8db717 2541 if (!ret) {
38b051a1 2542 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2a8db717
MC		 2543 return ret;
2544 }
38b051a1 2545 sc->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
2a8db717
MC		 2546 /* fall through */
2547
2548 case SSL_EARLY_DATA_WRITE_FLUSH:
2549 /* The buffering BIO is still in place so we need to flush it */
38b051a1 2550 if (statem_flush(sc) != 1)
2a8db717 2551 return 0;
2a8db717 2552 *written = num;
38b051a1 2553 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2a8db717 2554 return 1;
49e7fe12 2555
116d0da5 2556 case SSL_EARLY_DATA_FINISHED_READING:
a0cb628b 2557 case SSL_EARLY_DATA_READ_RETRY:
38b051a1 2558 early_data_state = sc->early_data_state;
09f28874 2559 /* We are a server writing to an unauthenticated client */
38b051a1 2560 sc->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
09f28874 2561 ret = SSL_write_ex(s, buf, num, written);
5fe37157
MC		 2562 /* The buffering BIO is still in place */
2563 if (ret)
38b051a1
TM		 2564 (void)BIO_flush(sc->wbio);
2565 sc->early_data_state = early_data_state;
09f28874
MC		 2566 return ret;
2567
49e7fe12 2568 default:
6849b73c 2569 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
49e7fe12
MC		 2570 return 0;
2571 }
2572}
2573
4f43d0e7 2574int SSL_shutdown(SSL *s)
0f113f3e
MC		 2575{
2576 /*
2577 * Note that this function behaves differently from what one might
2578 * expect. Return values are 0 for no success (yet), 1 for success; but
2579 * calling it once is usually not enough, even if blocking I/O is used
2580 * (see ssl3_shutdown).
2581 */
38b051a1 2582 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
0f113f3e 2583
38b051a1
TM		 2584 if (sc == NULL)
2585 return -1;
2586
2587 if (sc->handshake_func == NULL) {
6849b73c 2588 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
0f113f3e
MC		 2589 return -1;
2590 }
2591
64f9f406 2592 if (!SSL_in_init(s)) {
38b051a1 2593 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
64f9f406 2594 struct ssl_async_args args;
ec447924 2595
09134f18 2596 memset(&args, 0, sizeof(args));
64f9f406
MC		 2597 args.s = s;
2598 args.type = OTHERFUNC;
2599 args.f.func_other = s->method->ssl_shutdown;
ec447924 2600
64f9f406
MC		 2601 return ssl_start_async_job(s, &args, ssl_io_intern);
2602 } else {
2603 return s->method->ssl_shutdown(s);
2604 }
ec447924 2605 } else {
6849b73c 2606 ERR_raise(ERR_LIB_SSL, SSL_R_SHUTDOWN_WHILE_IN_INIT);
64f9f406 2607 return -1;
ec447924 2608 }
0f113f3e 2609}
d02b48c6 2610
4fbfe86a 2611int SSL_key_update(SSL *s, int updatetype)
44c04a2e 2612{
38b051a1
TM		 2613 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2614
2615 if (sc == NULL)
2616 return 0;
2617
2618 if (!SSL_CONNECTION_IS_TLS13(sc)) {
6849b73c 2619 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
44c04a2e
MC		 2620 return 0;
2621 }
2622
2623 if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
2624 && updatetype != SSL_KEY_UPDATE_REQUESTED) {
6849b73c 2625 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_KEY_UPDATE_TYPE);
44c04a2e
MC		 2626 return 0;
2627 }
2628
2629 if (!SSL_is_init_finished(s)) {
6849b73c 2630 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
44c04a2e
MC		 2631 return 0;
2632 }
2633
38b051a1 2634 if (RECORD_LAYER_write_pending(&sc->rlayer)) {
3bec4851
MC		 2635 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_WRITE_RETRY);
2636 return 0;
2637 }
2638
38b051a1
TM		 2639 ossl_statem_set_in_init(sc, 1);
2640 sc->key_update = updatetype;
44c04a2e
MC		 2641 return 1;
2642}
2643
3499327b 2644int SSL_get_key_update_type(const SSL *s)
53d1d07d 2645{
38b051a1
TM		 2646 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
2647
2648 if (sc == NULL)
2649 return 0;
2650
2651 return sc->key_update;
53d1d07d
MC		 2652}
2653
55373bfd
RS		 2654/*
2655 * Can we accept a renegotiation request? If yes, set the flag and
2656 * return 1 if yes. If not, raise error and return 0.
2657 */
38b051a1 2658static int can_renegotiate(const SSL_CONNECTION *sc)
0f113f3e 2659{
38b051a1 2660 if (SSL_CONNECTION_IS_TLS13(sc)) {
6849b73c 2661 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2c0980d2 2662 return 0;
44c04a2e 2663 }
cda6b998 2664
38b051a1 2665 if ((sc->options & SSL_OP_NO_RENEGOTIATION) != 0) {
6849b73c 2666 ERR_raise(ERR_LIB_SSL, SSL_R_NO_RENEGOTIATION);
db0f35dd
TS		 2667 return 0;
2668 }
44959ee4 2669
55373bfd
RS		 2670 return 1;
2671}
2672
2673int SSL_renegotiate(SSL *s)
2674{
38b051a1
TM		 2675 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2676
2677 if (sc == NULL)
55373bfd
RS		 2678 return 0;
2679
38b051a1
TM		 2680 if (!can_renegotiate(sc))
2681 return 0;
2682
2683 sc->renegotiate = 1;
2684 sc->new_session = 1;
26a7d938 2685 return s->method->ssl_renegotiate(s);
0f113f3e 2686}
d02b48c6 2687
44959ee4 2688int SSL_renegotiate_abbreviated(SSL *s)
0f113f3e 2689{
38b051a1
TM		 2690 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2691
2692 if (sc == NULL)
2693 return 0;
2694
2695 if (!can_renegotiate(sc))
2c0980d2 2696 return 0;
c519e89f 2697
38b051a1
TM		 2698 sc->renegotiate = 1;
2699 sc->new_session = 0;
26a7d938 2700 return s->method->ssl_renegotiate(s);
0f113f3e 2701}
44959ee4 2702
3499327b 2703int SSL_renegotiate_pending(const SSL *s)
0f113f3e 2704{
38b051a1
TM		 2705 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2706
2707 if (sc == NULL)
2708 return 0;
2709
0f113f3e
MC		 2710 /*
2711 * becomes true when negotiation is requested; false again once a
2712 * handshake has finished
2713 */
38b051a1 2714 return (sc->renegotiate != 0);
0f113f3e
MC		 2715}
2716
3bfacb5f
BK		 2717int SSL_new_session_ticket(SSL *s)
2718{
38b051a1
TM		 2719 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2720
2721 if (sc == NULL)
2722 return 0;
2723
7c73fefe 2724 /* If we are in init because we're sending tickets, okay to send more. */
38b051a1
TM		 2725 if ((SSL_in_init(s) && sc->ext.extra_tickets_expected == 0)
2726 || SSL_IS_FIRST_HANDSHAKE(sc) || !sc->server
2727 || !SSL_CONNECTION_IS_TLS13(sc))
35774d55 2728 return 0;
38b051a1
TM		 2729 sc->ext.extra_tickets_expected++;
2730 if (!RECORD_LAYER_write_pending(&sc->rlayer) && !SSL_in_init(s))
2731 ossl_statem_set_in_init(sc, 1);
35774d55 2732 return 1;
3bfacb5f
BK		 2733}
2734
0f113f3e
MC		 2735long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
2736{
2737 long l;
38b051a1
TM		 2738 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2739
2740 /* TODO(QUIC): Special handling for some ctrls will be needed */
2741 if (sc == NULL)
2742 return 0;
0f113f3e
MC		 2743
2744 switch (cmd) {
2745 case SSL_CTRL_GET_READ_AHEAD:
38b051a1 2746 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
0f113f3e 2747 case SSL_CTRL_SET_READ_AHEAD:
38b051a1
TM		 2748 l = RECORD_LAYER_get_read_ahead(&sc->rlayer);
2749 RECORD_LAYER_set_read_ahead(&sc->rlayer, larg);
26a7d938 2750 return l;
0f113f3e
MC		 2751
2752 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
38b051a1 2753 sc->msg_callback_arg = parg;
0f113f3e
MC		 2754 return 1;
2755
0f113f3e 2756 case SSL_CTRL_MODE:
4566dae7
MC		 2757 {
2758 OSSL_PARAM options[2], *opts = options;
2759
2760 sc->mode |= larg;
2761
2762 *opts++ = OSSL_PARAM_construct_uint32(OSSL_LIBSSL_RECORD_LAYER_PARAM_MODE,
2763 &sc->mode);
2764 *opts = OSSL_PARAM_construct_end();
2765
2766 /* Ignore return value */
2767 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
2768
2769 return sc->mode;
2770 }
0f113f3e 2771 case SSL_CTRL_CLEAR_MODE:
38b051a1 2772 return (sc->mode &= ~larg);
0f113f3e 2773 case SSL_CTRL_GET_MAX_CERT_LIST:
38b051a1 2774 return (long)sc->max_cert_list;
0f113f3e 2775 case SSL_CTRL_SET_MAX_CERT_LIST:
348240c6
MC		 2776 if (larg < 0)
2777 return 0;
38b051a1
TM		 2778 l = (long)sc->max_cert_list;
2779 sc->max_cert_list = (size_t)larg;
348240c6 2780 return l;
0f113f3e
MC		 2781 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2782 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2783 return 0;
50ec7505 2784#ifndef OPENSSL_NO_KTLS
38b051a1 2785 if (sc->wbio != NULL && BIO_get_ktls_send(sc->wbio))
50ec7505
BP		 2786 return 0;
2787#endif /* OPENSSL_NO_KTLS */
38b051a1
TM		 2788 sc->max_send_fragment = larg;
2789 if (sc->max_send_fragment < sc->split_send_fragment)
2790 sc->split_send_fragment = sc->max_send_fragment;
d102d9df
MC		 2791 return 1;
2792 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
38b051a1 2793 if ((size_t)larg > sc->max_send_fragment || larg == 0)
d102d9df 2794 return 0;
38b051a1 2795 sc->split_send_fragment = larg;
0f113f3e 2796 return 1;
d102d9df
MC		 2797 case SSL_CTRL_SET_MAX_PIPELINES:
2798 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2799 return 0;
38b051a1 2800 sc->max_pipelines = larg;
cffafb5f
MC		 2801 if (sc->rlayer.rrlmethod->set_max_pipelines != NULL)
2802 sc->rlayer.rrlmethod->set_max_pipelines(sc->rlayer.rrl, (size_t)larg);
07077415 2803 return 1;
0f113f3e 2804 case SSL_CTRL_GET_RI_SUPPORT:
38b051a1 2805 return sc->s3.send_connection_binding;
dfb39f73 2806 case SSL_CTRL_SET_RETRY_VERIFY:
38b051a1 2807 sc->rwstate = SSL_RETRY_VERIFY;
dfb39f73 2808 return 1;
0f113f3e 2809 case SSL_CTRL_CERT_FLAGS:
38b051a1 2810 return (sc->cert->cert_flags |= larg);
0f113f3e 2811 case SSL_CTRL_CLEAR_CERT_FLAGS:
38b051a1 2812 return (sc->cert->cert_flags &= ~larg);
0f113f3e
MC		 2813
2814 case SSL_CTRL_GET_RAW_CIPHERLIST:
2815 if (parg) {
38b051a1 2816 if (sc->s3.tmp.ciphers_raw == NULL)
0f113f3e 2817 return 0;
38b051a1
TM		 2818 *(unsigned char **)parg = sc->s3.tmp.ciphers_raw;
2819 return (int)sc->s3.tmp.ciphers_rawlen;
e9fa092e
EK		 2820 } else {
2821 return TLS_CIPHER_LEN;
2822 }
c5364614 2823 case SSL_CTRL_GET_EXTMS_SUPPORT:
38b051a1 2824 if (!sc->session || SSL_in_init(s) || ossl_statem_get_in_handshake(sc))
a230b26e 2825 return -1;
38b051a1 2826 if (sc->session->flags & SSL_SESS_FLAG_EXTMS)
c5364614
DSH		 2827 return 1;
2828 else
2829 return 0;
7946ab33 2830 case SSL_CTRL_SET_MIN_PROTO_VERSION:
38b051a1 2831 return ssl_check_allowed_versions(larg, sc->max_proto_version)
c8feba72 2832 && ssl_set_version_bound(s->ctx->method->version, (int)larg,
38b051a1 2833 &sc->min_proto_version);
3edabd3c 2834 case SSL_CTRL_GET_MIN_PROTO_VERSION:
38b051a1 2835 return sc->min_proto_version;
7946ab33 2836 case SSL_CTRL_SET_MAX_PROTO_VERSION:
38b051a1 2837 return ssl_check_allowed_versions(sc->min_proto_version, larg)
c8feba72 2838 && ssl_set_version_bound(s->ctx->method->version, (int)larg,
38b051a1 2839 &sc->max_proto_version);
3edabd3c 2840 case SSL_CTRL_GET_MAX_PROTO_VERSION:
38b051a1 2841 return sc->max_proto_version;
0f113f3e 2842 default:
26a7d938 2843 return s->method->ssl_ctrl(s, cmd, larg, parg);
0f113f3e
MC		 2844 }
2845}
2846
2847long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
2848{
38b051a1
TM		 2849 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2850
2851 if (sc == NULL)
2852 return 0;
2853
0f113f3e
MC		 2854 switch (cmd) {
2855 case SSL_CTRL_SET_MSG_CALLBACK:
38b051a1
TM		 2856 sc->msg_callback = (void (*)
2857 (int write_p, int version, int content_type,
2858 const void *buf, size_t len, SSL *ssl,
2859 void *arg))(fp);
0f113f3e
MC		 2860 return 1;
2861
2862 default:
26a7d938 2863 return s->method->ssl_callback_ctrl(s, cmd, fp);
0f113f3e
MC		 2864 }
2865}
d3442bc7 2866
3c1d6bbc 2867LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
0f113f3e
MC		 2868{
2869 return ctx->sessions;
2870}
2871
acce0557
P		 2872static int ssl_tsan_load(SSL_CTX *ctx, TSAN_QUALIFIER int *stat)
2873{
2874 int res = 0;
2875
2876 if (ssl_tsan_lock(ctx)) {
2877 res = tsan_load(stat);
2878 ssl_tsan_unlock(ctx);
2879 }
2880 return res;
2881}
2882
0f113f3e
MC		 2883long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
2884{
2885 long l;
2886 /* For some cases with ctx == NULL perform syntax checks */
2887 if (ctx == NULL) {
2888 switch (cmd) {
de4d764e 2889 case SSL_CTRL_SET_GROUPS_LIST:
260009d8 2890 return tls1_set_groups_list(ctx, NULL, NULL, parg);
0f113f3e
MC		 2891 case SSL_CTRL_SET_SIGALGS_LIST:
2892 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
2893 return tls1_set_sigalgs_list(NULL, parg, 0);
2894 default:
2895 return 0;
2896 }
2897 }
2898
2899 switch (cmd) {
2900 case SSL_CTRL_GET_READ_AHEAD:
26a7d938 2901 return ctx->read_ahead;
0f113f3e
MC		 2902 case SSL_CTRL_SET_READ_AHEAD:
2903 l = ctx->read_ahead;
2904 ctx->read_ahead = larg;
26a7d938 2905 return l;
0f113f3e
MC		 2906
2907 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
2908 ctx->msg_callback_arg = parg;
2909 return 1;
2910
2911 case SSL_CTRL_GET_MAX_CERT_LIST:
26a7d938 2912 return (long)ctx->max_cert_list;
0f113f3e 2913 case SSL_CTRL_SET_MAX_CERT_LIST:
348240c6
MC		 2914 if (larg < 0)
2915 return 0;
2916 l = (long)ctx->max_cert_list;
2917 ctx->max_cert_list = (size_t)larg;
2918 return l;
0f113f3e
MC		 2919
2920 case SSL_CTRL_SET_SESS_CACHE_SIZE:
348240c6
MC		 2921 if (larg < 0)
2922 return 0;
2923 l = (long)ctx->session_cache_size;
2924 ctx->session_cache_size = (size_t)larg;
2925 return l;
0f113f3e 2926 case SSL_CTRL_GET_SESS_CACHE_SIZE:
26a7d938 2927 return (long)ctx->session_cache_size;
0f113f3e
MC		 2928 case SSL_CTRL_SET_SESS_CACHE_MODE:
2929 l = ctx->session_cache_mode;
2930 ctx->session_cache_mode = larg;
26a7d938 2931 return l;
0f113f3e 2932 case SSL_CTRL_GET_SESS_CACHE_MODE:
26a7d938 2933 return ctx->session_cache_mode;
0f113f3e
MC		 2934
2935 case SSL_CTRL_SESS_NUMBER:
26a7d938 2936 return lh_SSL_SESSION_num_items(ctx->sessions);
0f113f3e 2937 case SSL_CTRL_SESS_CONNECT:
acce0557 2938 return ssl_tsan_load(ctx, &ctx->stats.sess_connect);
0f113f3e 2939 case SSL_CTRL_SESS_CONNECT_GOOD:
acce0557 2940 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_good);
0f113f3e 2941 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
acce0557 2942 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_renegotiate);
0f113f3e 2943 case SSL_CTRL_SESS_ACCEPT:
acce0557 2944 return ssl_tsan_load(ctx, &ctx->stats.sess_accept);
0f113f3e 2945 case SSL_CTRL_SESS_ACCEPT_GOOD:
acce0557 2946 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_good);
0f113f3e 2947 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
acce0557 2948 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_renegotiate);
0f113f3e 2949 case SSL_CTRL_SESS_HIT:
acce0557 2950 return ssl_tsan_load(ctx, &ctx->stats.sess_hit);
0f113f3e 2951 case SSL_CTRL_SESS_CB_HIT:
acce0557 2952 return ssl_tsan_load(ctx, &ctx->stats.sess_cb_hit);
0f113f3e 2953 case SSL_CTRL_SESS_MISSES:
acce0557 2954 return ssl_tsan_load(ctx, &ctx->stats.sess_miss);
0f113f3e 2955 case SSL_CTRL_SESS_TIMEOUTS:
acce0557 2956 return ssl_tsan_load(ctx, &ctx->stats.sess_timeout);
0f113f3e 2957 case SSL_CTRL_SESS_CACHE_FULL:
acce0557 2958 return ssl_tsan_load(ctx, &ctx->stats.sess_cache_full);
0f113f3e
MC		 2959 case SSL_CTRL_MODE:
2960 return (ctx->mode |= larg);
2961 case SSL_CTRL_CLEAR_MODE:
2962 return (ctx->mode &= ~larg);
2963 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2964 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2965 return 0;
2966 ctx->max_send_fragment = larg;
d102d9df 2967 if (ctx->max_send_fragment < ctx->split_send_fragment)
bfb155c1 2968 ctx->split_send_fragment = ctx->max_send_fragment;
0f113f3e 2969 return 1;
d102d9df 2970 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
7ee8627f 2971 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
d102d9df
MC		 2972 return 0;
2973 ctx->split_send_fragment = larg;
2974 return 1;
2975 case SSL_CTRL_SET_MAX_PIPELINES:
2976 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2977 return 0;
2978 ctx->max_pipelines = larg;
07077415 2979 return 1;
0f113f3e
MC		 2980 case SSL_CTRL_CERT_FLAGS:
2981 return (ctx->cert->cert_flags |= larg);
2982 case SSL_CTRL_CLEAR_CERT_FLAGS:
2983 return (ctx->cert->cert_flags &= ~larg);
7946ab33 2984 case SSL_CTRL_SET_MIN_PROTO_VERSION:
c8feba72
BK		 2985 return ssl_check_allowed_versions(larg, ctx->max_proto_version)
2986 && ssl_set_version_bound(ctx->method->version, (int)larg,
2987 &ctx->min_proto_version);
3edabd3c
CH		 2988 case SSL_CTRL_GET_MIN_PROTO_VERSION:
2989 return ctx->min_proto_version;
7946ab33 2990 case SSL_CTRL_SET_MAX_PROTO_VERSION:
c8feba72
BK		 2991 return ssl_check_allowed_versions(ctx->min_proto_version, larg)
2992 && ssl_set_version_bound(ctx->method->version, (int)larg,
2993 &ctx->max_proto_version);
3edabd3c
CH		 2994 case SSL_CTRL_GET_MAX_PROTO_VERSION:
2995 return ctx->max_proto_version;
0f113f3e 2996 default:
26a7d938 2997 return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
0f113f3e
MC		 2998 }
2999}
3000
3001long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
3002{
3003 switch (cmd) {
3004 case SSL_CTRL_SET_MSG_CALLBACK:
3005 ctx->msg_callback = (void (*)
3006 (int write_p, int version, int content_type,
3007 const void *buf, size_t len, SSL *ssl,
3008 void *arg))(fp);
3009 return 1;
3010
3011 default:
26a7d938 3012 return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
0f113f3e
MC		 3013 }
3014}
d3442bc7 3015
ccd86b68 3016int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
0f113f3e 3017{
90d9e49a
DSH		 3018 if (a->id > b->id)
3019 return 1;
3020 if (a->id < b->id)
3021 return -1;
3022 return 0;
0f113f3e
MC		 3023}
3024
3025int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
3026 const SSL_CIPHER *const *bp)
3027{
90d9e49a
DSH		 3028 if ((*ap)->id > (*bp)->id)
3029 return 1;
3030 if ((*ap)->id < (*bp)->id)
3031 return -1;
3032 return 0;
0f113f3e 3033}
d02b48c6 3034
38b051a1
TM		 3035/*
3036 * return a STACK of the ciphers available for the SSL and in order of
3037 * preference
3038 */
0821bcd4 3039STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
0f113f3e 3040{
38b051a1
TM		 3041 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3042
3043 if (sc != NULL) {
3044 if (sc->cipher_list != NULL) {
3045 return sc->cipher_list;
0f113f3e 3046 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
26a7d938 3047 return s->ctx->cipher_list;
0f113f3e
MC		 3048 }
3049 }
26a7d938 3050 return NULL;
0f113f3e
MC		 3051}
3052
831eef2c
NM		 3053STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
3054{
38b051a1
TM		 3055 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3056
3057 if (sc == NULL || !sc->server)
831eef2c 3058 return NULL;
38b051a1 3059 return sc->peer_ciphers;
831eef2c
NM		 3060}
3061
8b8e5bed 3062STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
0f113f3e
MC		 3063{
3064 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
3065 int i;
38b051a1
TM		 3066 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3067
3068 if (sc == NULL)
3069 return NULL;
1d0c08b4 3070
0f113f3e
MC		 3071 ciphers = SSL_get_ciphers(s);
3072 if (!ciphers)
3073 return NULL;
38b051a1 3074 if (!ssl_set_client_disabled(sc))
1d0c08b4 3075 return NULL;
0f113f3e
MC		 3076 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
3077 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
38b051a1 3078 if (!ssl_cipher_disabled(sc, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
0f113f3e
MC		 3079 if (!sk)
3080 sk = sk_SSL_CIPHER_new_null();
3081 if (!sk)
3082 return NULL;
3083 if (!sk_SSL_CIPHER_push(sk, c)) {
3084 sk_SSL_CIPHER_free(sk);
3085 return NULL;
3086 }
3087 }
3088 }
3089 return sk;
3090}
8b8e5bed 3091
4f43d0e7 3092/** return a STACK of the ciphers available for the SSL and in order of
d02b48c6 3093 * algorithm id */
38b051a1 3094STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL_CONNECTION *s)
0f113f3e
MC		 3095{
3096 if (s != NULL) {
38b051a1 3097 if (s->cipher_list_by_id != NULL)
26a7d938 3098 return s->cipher_list_by_id;
38b051a1
TM		 3099 else if (s->ssl.ctx != NULL
3100 && s->ssl.ctx->cipher_list_by_id != NULL)
3101 return s->ssl.ctx->cipher_list_by_id;
0f113f3e 3102 }
26a7d938 3103 return NULL;
0f113f3e 3104}
d02b48c6 3105
4f43d0e7 3106/** The old interface to get the same thing as SSL_get_ciphers() */
0f113f3e
MC		 3107const char *SSL_get_cipher_list(const SSL *s, int n)
3108{
4a640fb6 3109 const SSL_CIPHER *c;
0f113f3e
MC		 3110 STACK_OF(SSL_CIPHER) *sk;
3111
3112 if (s == NULL)
26a7d938 3113 return NULL;
0f113f3e
MC		 3114 sk = SSL_get_ciphers(s);
3115 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
26a7d938 3116 return NULL;
0f113f3e
MC		 3117 c = sk_SSL_CIPHER_value(sk, n);
3118 if (c == NULL)
26a7d938
K		 3119 return NULL;
3120 return c->name;
0f113f3e 3121}
d02b48c6 3122
9d5ac953
KY		 3123/** return a STACK of the ciphers available for the SSL_CTX and in order of
3124 * preference */
3125STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
3126{
3127 if (ctx != NULL)
3128 return ctx->cipher_list;
3129 return NULL;
3130}
3131
3c83c5ba
SR		 3132/*
3133 * Distinguish between ciphers controlled by set_ciphersuite() and
3134 * set_cipher_list() when counting.
3135 */
3136static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
3137{
3138 int i, num = 0;
3139 const SSL_CIPHER *c;
3140
3141 if (sk == NULL)
3142 return 0;
3143 for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
3144 c = sk_SSL_CIPHER_value(sk, i);
3145 if (c->min_tls >= TLS1_3_VERSION)
3146 continue;
3147 num++;
3148 }
3149 return num;
3150}
3151
25f923dd 3152/** specify the ciphers to be used by default by the SSL_CTX */
018e57c7 3153int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
0f113f3e
MC		 3154{
3155 STACK_OF(SSL_CIPHER) *sk;
3156
a68eee67 3157 sk = ssl_create_cipher_list(ctx, ctx->tls13_ciphersuites,
f865b081
MC		 3158 &ctx->cipher_list, &ctx->cipher_list_by_id, str,
3159 ctx->cert);
0f113f3e
MC		 3160 /*
3161 * ssl_create_cipher_list may return an empty stack if it was unable to
3162 * find a cipher matching the given rule string (for example if the rule
3163 * string specifies a cipher which has been disabled). This is not an
3164 * error as far as ssl_create_cipher_list is concerned, and hence
3165 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
3166 */
3167 if (sk == NULL)
3168 return 0;
3c83c5ba 3169 else if (cipher_list_tls12_num(sk) == 0) {
6849b73c 3170 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
0f113f3e
MC		 3171 return 0;
3172 }
3173 return 1;
3174}
d02b48c6 3175
4f43d0e7 3176/** specify the ciphers to be used by the SSL */
0f113f3e
MC		 3177int SSL_set_cipher_list(SSL *s, const char *str)
3178{
3179 STACK_OF(SSL_CIPHER) *sk;
38b051a1 3180 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
0f113f3e 3181
38b051a1
TM		 3182 if (sc == NULL)
3183 return 0;
3184
3185 sk = ssl_create_cipher_list(s->ctx, sc->tls13_ciphersuites,
3186 &sc->cipher_list, &sc->cipher_list_by_id, str,
3187 sc->cert);
0f113f3e
MC		 3188 /* see comment in SSL_CTX_set_cipher_list */
3189 if (sk == NULL)
3190 return 0;
3c83c5ba 3191 else if (cipher_list_tls12_num(sk) == 0) {
6849b73c 3192 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
0f113f3e
MC		 3193 return 0;
3194 }
3195 return 1;
3196}
d02b48c6 3197
a216df59 3198char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
0f113f3e
MC		 3199{
3200 char *p;
a216df59 3201 STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
4a640fb6 3202 const SSL_CIPHER *c;
0f113f3e 3203 int i;
38b051a1
TM		 3204 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3205
3206 if (sc == NULL)
3207 return NULL;
0f113f3e 3208
38b051a1
TM		 3209 if (!sc->server
3210 || sc->peer_ciphers == NULL
a216df59 3211 || size < 2)
26a7d938 3212 return NULL;
0f113f3e
MC		 3213
3214 p = buf;
38b051a1 3215 clntsk = sc->peer_ciphers;
a216df59
MC		 3216 srvrsk = SSL_get_ciphers(s);
3217 if (clntsk == NULL || srvrsk == NULL)
3218 return NULL;
0f113f3e 3219
a216df59 3220 if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
0f113f3e
MC		 3221 return NULL;
3222
a216df59 3223 for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
0f113f3e
MC		 3224 int n;
3225
a216df59
MC		 3226 c = sk_SSL_CIPHER_value(clntsk, i);
3227 if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
3228 continue;
3229
0f113f3e 3230 n = strlen(c->name);
a216df59 3231 if (n + 1 > size) {
0f113f3e
MC		 3232 if (p != buf)
3233 --p;
3234 *p = '\0';
3235 return buf;
3236 }
4cacc9d5 3237 strcpy(p, c->name);
0f113f3e
MC		 3238 p += n;
3239 *(p++) = ':';
a216df59 3240 size -= n + 1;
0f113f3e
MC		 3241 }
3242 p[-1] = '\0';
26a7d938 3243 return buf;
0f113f3e
MC		 3244}
3245
7955c1f1
MC		 3246/**
3247 * Return the requested servername (SNI) value. Note that the behaviour varies
3248 * depending on:
3249 * - whether this is called by the client or the server,
3250 * - if we are before or during/after the handshake,
3251 * - if a resumption or normal handshake is being attempted/has occurred
3252 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
38b051a1 3253 *
7955c1f1 3254 * Note that only the host_name type is defined (RFC 3546).
ed3883d2 3255 */
f1fd4544 3256const char *SSL_get_servername(const SSL *s, const int type)
0f113f3e 3257{
38b051a1
TM		 3258 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3259 int server;
3260
3261 if (sc == NULL)
3262 return NULL;
3263
7955c1f1
MC		 3264 /*
3265 * If we don't know if we are the client or the server yet then we assume
3266 * client.
3267 */
38b051a1
TM		 3268 server = sc->handshake_func == NULL ? 0 : sc->server;
3269
0f113f3e
MC		 3270 if (type != TLSEXT_NAMETYPE_host_name)
3271 return NULL;
a13c20f6 3272
7955c1f1
MC		 3273 if (server) {
3274 /**
3275 * Server side
3276 * In TLSv1.3 on the server SNI is not associated with the session
3277 * but in TLSv1.2 or below it is.
3278 *
3279 * Before the handshake:
3280 * - return NULL
3281 *
3282 * During/after the handshake (TLSv1.2 or below resumption occurred):
3283 * - If a servername was accepted by the server in the original
3284 * handshake then it will return that servername, or NULL otherwise.
3285 *
3286 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3287 * - The function will return the servername requested by the client in
3288 * this handshake or NULL if none was requested.
3289 */
38b051a1
TM		 3290 if (sc->hit && !SSL_CONNECTION_IS_TLS13(sc))
3291 return sc->session->ext.hostname;
7955c1f1
MC		 3292 } else {
3293 /**
3294 * Client side
3295 *
3296 * Before the handshake:
3297 * - If a servername has been set via a call to
3298 * SSL_set_tlsext_host_name() then it will return that servername
3299 * - If one has not been set, but a TLSv1.2 resumption is being
3300 * attempted and the session from the original handshake had a
3301 * servername accepted by the server then it will return that
3302 * servername
3303 * - Otherwise it returns NULL
3304 *
3305 * During/after the handshake (TLSv1.2 or below resumption occurred):
9f7505ab 3306 * - If the session from the original handshake had a servername accepted
7955c1f1
MC		 3307 * by the server then it will return that servername.
3308 * - Otherwise it returns the servername set via
3309 * SSL_set_tlsext_host_name() (or NULL if it was not called).
3310 *
3311 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3312 * - It will return the servername set via SSL_set_tlsext_host_name()
3313 * (or NULL if it was not called).
3314 */
3315 if (SSL_in_before(s)) {
38b051a1
TM		 3316 if (sc->ext.hostname == NULL
3317 && sc->session != NULL
3318 && sc->session->ssl_version != TLS1_3_VERSION)
3319 return sc->session->ext.hostname;
7955c1f1 3320 } else {
38b051a1
TM		 3321 if (!SSL_CONNECTION_IS_TLS13(sc) && sc->hit
3322 && sc->session->ext.hostname != NULL)
3323 return sc->session->ext.hostname;
7955c1f1
MC		 3324 }
3325 }
3326
38b051a1 3327 return sc->ext.hostname;
0f113f3e 3328}
ed3883d2 3329
f1fd4544 3330int SSL_get_servername_type(const SSL *s)
0f113f3e 3331{
7955c1f1 3332 if (SSL_get_servername(s, TLSEXT_NAMETYPE_host_name) != NULL)
0f113f3e
MC		 3333 return TLSEXT_NAMETYPE_host_name;
3334 return -1;
3335}
ee2ffc27 3336
0f113f3e
MC		 3337/*
3338 * SSL_select_next_proto implements the standard protocol selection. It is
ee2ffc27 3339 * expected that this function is called from the callback set by
0f113f3e
MC		 3340 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
3341 * vector of 8-bit, length prefixed byte strings. The length byte itself is
3342 * not included in the length. A byte string of length 0 is invalid. No byte
3343 * string may be truncated. The current, but experimental algorithm for
3344 * selecting the protocol is: 1) If the server doesn't support NPN then this
3345 * is indicated to the callback. In this case, the client application has to
3346 * abort the connection or have a default application level protocol. 2) If
3347 * the server supports NPN, but advertises an empty list then the client
f430ba31 3348 * selects the first protocol in its list, but indicates via the API that this
0f113f3e
MC		 3349 * fallback case was enacted. 3) Otherwise, the client finds the first
3350 * protocol in the server's list that it supports and selects this protocol.
3351 * This is because it's assumed that the server has better information about
3352 * which protocol a client should use. 4) If the client doesn't support any
3353 * of the server's advertised protocols, then this is treated the same as
3354 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
3355 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
ee2ffc27 3356 */
0f113f3e
MC		 3357int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
3358 const unsigned char *server,
3359 unsigned int server_len,
a230b26e 3360 const unsigned char *client, unsigned int client_len)
0f113f3e
MC		 3361{
3362 unsigned int i, j;
3363 const unsigned char *result;
3364 int status = OPENSSL_NPN_UNSUPPORTED;
3365
3366 /*
3367 * For each protocol in server preference order, see if we support it.
3368 */
3369 for (i = 0; i < server_len;) {
3370 for (j = 0; j < client_len;) {
3371 if (server[i] == client[j] &&
3372 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
3373 /* We found a match */
3374 result = &server[i];
3375 status = OPENSSL_NPN_NEGOTIATED;
3376 goto found;
3377 }
3378 j += client[j];
3379 j++;
3380 }
3381 i += server[i];
3382 i++;
3383 }
3384
3385 /* There's no overlap between our protocols and the server's list. */
3386 result = client;
3387 status = OPENSSL_NPN_NO_OVERLAP;
3388
3389 found:
3390 *out = (unsigned char *)result + 1;
3391 *outlen = result[0];
3392 return status;
3393}
ee2ffc27 3394
e481f9b9 3395#ifndef OPENSSL_NO_NEXTPROTONEG
0f113f3e
MC		 3396/*
3397 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
3398 * client's requested protocol for this connection and returns 0. If the
3399 * client didn't request any protocol, then *data is set to NULL. Note that
3400 * the client can request any protocol it chooses. The value returned from
3401 * this function need not be a member of the list of supported protocols
ee2ffc27
BL		 3402 * provided by the callback.
3403 */
0f113f3e
MC		 3404void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
3405 unsigned *len)
3406{
38b051a1
TM		 3407 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3408
3409 if (sc == NULL) {
3410 /* We have no other way to indicate error */
3411 *data = NULL;
3412 *len = 0;
3413 return;
3414 }
3415
3416 *data = sc->ext.npn;
12a765a5 3417 if (*data == NULL) {
0f113f3e
MC		 3418 *len = 0;
3419 } else {
38b051a1 3420 *len = (unsigned int)sc->ext.npn_len;
0f113f3e
MC		 3421 }
3422}
3423
3424/*
aff8c126 3425 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
0f113f3e
MC		 3426 * a TLS server needs a list of supported protocols for Next Protocol
3427 * Negotiation. The returned list must be in wire format. The list is
3428 * returned by setting |out| to point to it and |outlen| to its length. This
3429 * memory will not be modified, but one should assume that the SSL* keeps a
3430 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
3431 * wishes to advertise. Otherwise, no such extension will be included in the
3432 * ServerHello.
3433 */
aff8c126 3434void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
8cbfcc70 3435 SSL_CTX_npn_advertised_cb_func cb,
aff8c126 3436 void *arg)
0f113f3e 3437{
aff8c126
RS		 3438 ctx->ext.npn_advertised_cb = cb;
3439 ctx->ext.npn_advertised_cb_arg = arg;
0f113f3e
MC		 3440}
3441
3442/*
3443 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
ee2ffc27
BL		 3444 * client needs to select a protocol from the server's provided list. |out|
3445 * must be set to point to the selected protocol (which may be within |in|).
0f113f3e
MC		 3446 * The length of the protocol name must be written into |outlen|. The
3447 * server's advertised protocols are provided in |in| and |inlen|. The
3448 * callback can assume that |in| is syntactically valid. The client must
3449 * select a protocol. It is fatal to the connection if this callback returns
3450 * a value other than SSL_TLSEXT_ERR_OK.
ee2ffc27 3451 */
aff8c126 3452void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
8cbfcc70 3453 SSL_CTX_npn_select_cb_func cb,
aff8c126 3454 void *arg)
0f113f3e 3455{
aff8c126
RS		 3456 ctx->ext.npn_select_cb = cb;
3457 ctx->ext.npn_select_cb_arg = arg;
0f113f3e 3458}
e481f9b9 3459#endif
a398f821 3460
feba11cf
TS		 3461static int alpn_value_ok(const unsigned char *protos, unsigned int protos_len)
3462{
3463 unsigned int idx;
3464
3465 if (protos_len < 2 || protos == NULL)
3466 return 0;
3467
3468 for (idx = 0; idx < protos_len; idx += protos[idx] + 1) {
3469 if (protos[idx] == 0)
3470 return 0;
3471 }
3472 return idx == protos_len;
3473}
0f113f3e
MC		 3474/*
3475 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
6f017a8f 3476 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
0f113f3e
MC		 3477 * length-prefixed strings). Returns 0 on success.
3478 */
3479int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
817cd0d5 3480 unsigned int protos_len)
0f113f3e 3481{
feba11cf
TS		 3482 unsigned char *alpn;
3483
3484 if (protos_len == 0 || protos == NULL) {
3485 OPENSSL_free(ctx->ext.alpn);
3486 ctx->ext.alpn = NULL;
39a14059 3487 ctx->ext.alpn_len = 0;
feba11cf
TS		 3488 return 0;
3489 }
3490 /* Not valid per RFC */
3491 if (!alpn_value_ok(protos, protos_len))
3492 return 1;
3493
3494 alpn = OPENSSL_memdup(protos, protos_len);
3495 if (alpn == NULL) {
6849b73c 3496 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
0f113f3e 3497 return 1;
72e9be3d 3498 }
feba11cf
TS		 3499 OPENSSL_free(ctx->ext.alpn);
3500 ctx->ext.alpn = alpn;
aff8c126 3501 ctx->ext.alpn_len = protos_len;
0f113f3e
MC		 3502
3503 return 0;
3504}
3505
3506/*
3507 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
6f017a8f 3508 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
0f113f3e
MC		 3509 * length-prefixed strings). Returns 0 on success.
3510 */
3511int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
817cd0d5 3512 unsigned int protos_len)
0f113f3e 3513{
feba11cf 3514 unsigned char *alpn;
38b051a1
TM		 3515 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
3516
3517 if (sc == NULL)
3518 return 1;
feba11cf
TS		 3519
3520 if (protos_len == 0 || protos == NULL) {
38b051a1
TM		 3521 OPENSSL_free(sc->ext.alpn);
3522 sc->ext.alpn = NULL;
3523 sc->ext.alpn_len = 0;
feba11cf
TS		 3524 return 0;
3525 }
3526 /* Not valid per RFC */
3527 if (!alpn_value_ok(protos, protos_len))
3528 return 1;
3529
3530 alpn = OPENSSL_memdup(protos, protos_len);
3531 if (alpn == NULL) {
6849b73c 3532 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
0f113f3e 3533 return 1;
72e9be3d 3534 }
38b051a1
TM		 3535 OPENSSL_free(sc->ext.alpn);
3536 sc->ext.alpn = alpn;
3537 sc->ext.alpn_len = protos_len;
0f113f3e
MC		 3538
3539 return 0;
3540}
3541
3542/*
3543 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3544 * called during ClientHello processing in order to select an ALPN protocol
3545 * from the client's list of offered protocols.
3546 */
3547void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
8cbfcc70
RS		 3548 SSL_CTX_alpn_select_cb_func cb,
3549 void *arg)
0f113f3e 3550{
aff8c126
RS		 3551 ctx->ext.alpn_select_cb = cb;
3552 ctx->ext.alpn_select_cb_arg = arg;
0f113f3e
MC		 3553}
3554
3555/*
69687aa8
F		 3556 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3557 * On return it sets |*data| to point to |*len| bytes of protocol name
0f113f3e
MC		 3558 * (not including the leading length-prefix byte). If the server didn't
3559 * respond with a negotiated protocol then |*len| will be zero.
3560 */
6f017a8f 3561void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
817cd0d5 3562 unsigned int *len)
0f113f3e 3563{
38b051a1
TM		 3564 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
3565
3566 if (sc == NULL) {
3567 /* We have no other way to indicate error */
3568 *data = NULL;
3569 *len = 0;
3570 return;
3571 }
3572
3573 *data = sc->s3.alpn_selected;
0f113f3e
MC		 3574 if (*data == NULL)
3575 *len = 0;
3576 else
38b051a1 3577 *len = (unsigned int)sc->s3.alpn_selected_len;
0f113f3e
MC		 3578}
3579
74b4b494 3580int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
0f113f3e 3581 const char *label, size_t llen,
23cec1f4 3582 const unsigned char *context, size_t contextlen,
0f113f3e
MC		 3583 int use_context)
3584{
38b051a1
TM		 3585 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3586
3587 if (sc == NULL)
3588 return -1;
3589
3590 if (sc->session == NULL
3591 || (sc->version < TLS1_VERSION && sc->version != DTLS1_BAD_VER))
0f113f3e 3592 return -1;
e0af0405 3593
38b051a1 3594 return s->method->ssl3_enc->export_keying_material(sc, out, olen, label,
23cec1f4
MC		 3595 llen, context,
3596 contextlen, use_context);
0f113f3e 3597}
e0af0405 3598
b38ede80
TT		 3599int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
3600 const char *label, size_t llen,
3601 const unsigned char *context,
3602 size_t contextlen)
3603{
38b051a1
TM		 3604 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3605
3606 if (sc == NULL)
3607 return -1;
3608
3609 if (sc->version != TLS1_3_VERSION)
b38ede80
TT		 3610 return 0;
3611
38b051a1 3612 return tls13_export_keying_material_early(sc, out, olen, label, llen,
b38ede80
TT		 3613 context, contextlen);
3614}
3615
3c1d6bbc 3616static unsigned long ssl_session_hash(const SSL_SESSION *a)
0f113f3e 3617{
bd5d27c1 3618 const unsigned char *session_id = a->session_id;
0f113f3e 3619 unsigned long l;
bd5d27c1
DB		 3620 unsigned char tmp_storage[4];
3621
3622 if (a->session_id_length < sizeof(tmp_storage)) {
3623 memset(tmp_storage, 0, sizeof(tmp_storage));
3624 memcpy(tmp_storage, a->session_id, a->session_id_length);
3625 session_id = tmp_storage;
3626 }
0f113f3e
MC		 3627
3628 l = (unsigned long)
bd5d27c1
DB		 3629 ((unsigned long)session_id[0]) |
3630 ((unsigned long)session_id[1] << 8L) |
3631 ((unsigned long)session_id[2] << 16L) |
3632 ((unsigned long)session_id[3] << 24L);
26a7d938 3633 return l;
0f113f3e
MC		 3634}
3635
3636/*
3637 * NB: If this function (or indeed the hash function which uses a sort of
dc644fe2 3638 * coarser function than this one) is changed, ensure
0f113f3e
MC		 3639 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3640 * being able to construct an SSL_SESSION that will collide with any existing
3641 * session with a matching session ID.
3642 */
3643static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
3644{
3645 if (a->ssl_version != b->ssl_version)
208fb891 3646 return 1;
0f113f3e 3647 if (a->session_id_length != b->session_id_length)
208fb891 3648 return 1;
26a7d938 3649 return memcmp(a->session_id, b->session_id, a->session_id_length);
0f113f3e
MC		 3650}
3651
3652/*
3653 * These wrapper functions should remain rather than redeclaring
d0fa136c 3654 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
0f113f3e
MC		 3655 * variable. The reason is that the functions aren't static, they're exposed
3656 * via ssl.h.
3657 */
97b17195 3658
b4250010 3659SSL_CTX *SSL_CTX_new_ex(OSSL_LIB_CTX *libctx, const char *propq,
d8652be0 3660 const SSL_METHOD *meth)
0f113f3e
MC		 3661{
3662 SSL_CTX *ret = NULL;
3663
3664 if (meth == NULL) {
6849b73c 3665 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_METHOD_PASSED);
26a7d938 3666 return NULL;
0f113f3e
MC		 3667 }
3668
0fc32b07
MC		 3669 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
3670 return NULL;
7fa792d1 3671
0f113f3e 3672 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
6849b73c 3673 ERR_raise(ERR_LIB_SSL, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
0f113f3e
MC		 3674 goto err;
3675 }
b51bce94 3676 ret = OPENSSL_zalloc(sizeof(*ret));
0f113f3e
MC		 3677 if (ret == NULL)
3678 goto err;
3679
045a8930
F		 3680 /* Init the reference counting before any call to SSL_CTX_free */
3681 ret->references = 1;
3682 ret->lock = CRYPTO_THREAD_lock_new();
3683 if (ret->lock == NULL) {
3684 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
3685 OPENSSL_free(ret);
3686 return NULL;
3687 }
3688
acce0557
P		 3689#ifdef TSAN_REQUIRES_LOCKING
3690 ret->tsan_lock = CRYPTO_THREAD_lock_new();
3691 if (ret->tsan_lock == NULL) {
3692 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
3693 goto err;
3694 }
3695#endif
3696
ba18627e
MC		 3697 ret->libctx = libctx;
3698 if (propq != NULL) {
3699 ret->propq = OPENSSL_strdup(propq);
3700 if (ret->propq == NULL)
3701 goto err;
3702 }
3703
0f113f3e 3704 ret->method = meth;
7946ab33
KR		 3705 ret->min_proto_version = 0;
3706 ret->max_proto_version = 0;
693cf80c 3707 ret->mode = SSL_MODE_AUTO_RETRY;
0f113f3e
MC		 3708 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
3709 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
64b25758 3710 /* We take the system default. */
0f113f3e 3711 ret->session_timeout = meth->get_timeout();
0f113f3e 3712 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
0f113f3e 3713 ret->verify_mode = SSL_VERIFY_NONE;
0f113f3e
MC		 3714 if ((ret->cert = ssl_cert_new()) == NULL)
3715 goto err;
3716
62d0577e 3717 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
0f113f3e
MC		 3718 if (ret->sessions == NULL)
3719 goto err;
3720 ret->cert_store = X509_STORE_new();
3721 if (ret->cert_store == NULL)
3722 goto err;
ed29e82a 3723#ifndef OPENSSL_NO_CT
d8652be0 3724 ret->ctlog_store = CTLOG_STORE_new_ex(libctx, propq);
ed29e82a
RP		 3725 if (ret->ctlog_store == NULL)
3726 goto err;
3727#endif
f865b081 3728
c8f6c28a
MC		 3729 /* initialize cipher/digest methods table */
3730 if (!ssl_load_ciphers(ret))
075b1f2f 3731 goto err2;
263ff2c9
MC		 3732 /* initialise sig algs */
3733 if (!ssl_setup_sig_algs(ret))
3734 goto err2;
3735
c8f6c28a 3736
9d2d857f
MC		 3737 if (!ssl_load_groups(ret))
3738 goto err2;
3739
5d120511 3740 if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites()))
f865b081
MC		 3741 goto err;
3742
a68eee67 3743 if (!ssl_create_cipher_list(ret,
f865b081 3744 ret->tls13_ciphersuites,
a230b26e 3745 &ret->cipher_list, &ret->cipher_list_by_id,
5d120511 3746 OSSL_default_cipher_list(), ret->cert)
a230b26e 3747 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
6849b73c 3748 ERR_raise(ERR_LIB_SSL, SSL_R_LIBRARY_HAS_NO_CIPHERS);
0f113f3e
MC		 3749 goto err2;
3750 }
3751
3752 ret->param = X509_VERIFY_PARAM_new();
a71edf3b 3753 if (ret->param == NULL)
0f113f3e
MC		 3754 goto err;
3755
c8f6c28a
MC		 3756 /*
3757 * If these aren't available from the provider we'll get NULL returns.
3758 * That's fine but will cause errors later if SSLv3 is negotiated
3759 */
3760 ret->md5 = ssl_evp_md_fetch(libctx, NID_md5, propq);
3761 ret->sha1 = ssl_evp_md_fetch(libctx, NID_sha1, propq);
0f113f3e 3762
fa7c2637 3763 if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL)
0f113f3e
MC		 3764 goto err;
3765
98732979
MC		 3766 if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL)
3767 goto err;
3768
25a807bc
F		 3769 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data))
3770 goto err;
0f113f3e 3771
4bfb96f2
TS		 3772 if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
3773 goto err;
3774
0f113f3e
MC		 3775 /* No compression for DTLS */
3776 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
3777 ret->comp_methods = SSL_COMP_get_compression_methods();
3778
3779 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
d102d9df 3780 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
566dda07 3781
4e2e1ec9 3782 /* Setup RFC5077 ticket keys */
8f21260b 3783 if ((RAND_bytes_ex(libctx, ret->ext.tick_key_name,
0f8815aa 3784 sizeof(ret->ext.tick_key_name), 0) <= 0)
8f21260b 3785 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_hmac_key,
0f8815aa 3786 sizeof(ret->ext.secure->tick_hmac_key), 0) <= 0)
8f21260b 3787 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_aes_key,
0f8815aa 3788 sizeof(ret->ext.secure->tick_aes_key), 0) <= 0))
0f113f3e 3789 ret->options |= SSL_OP_NO_TICKET;
6434abbf 3790
8f21260b 3791 if (RAND_priv_bytes_ex(libctx, ret->ext.cookie_hmac_key,
0f8815aa 3792 sizeof(ret->ext.cookie_hmac_key), 0) <= 0)
43054d3d
MC		 3793 goto err;
3794
edc032b5 3795#ifndef OPENSSL_NO_SRP
76cb077f 3796 if (!ssl_ctx_srp_ctx_init_intern(ret))
69f68237 3797 goto err;
edc032b5 3798#endif
4db9677b 3799#ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 3800# ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3801# define eng_strx(x) #x
3802# define eng_str(x) eng_strx(x)
3803 /* Use specific client engine automatically... ignore errors */
3804 {
3805 ENGINE *eng;
3806 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3807 if (!eng) {
3808 ERR_clear_error();
3809 ENGINE_load_builtin_engines();
3810 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3811 }
3812 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
3813 ERR_clear_error();
3814 }
3815# endif
3816#endif
dc5744cb
EK		 3817 /*
3818 * Disable compression by default to prevent CRIME. Applications can
3819 * re-enable compression by configuring
3820 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
a5816a5a
MC		 3821 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3822 * middlebox compatibility by default. This may be disabled by default in
3823 * a later OpenSSL version.
dc5744cb 3824 */
a5816a5a 3825 ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
0f113f3e 3826
aff8c126 3827 ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
ba261f71 3828
bfa9a9af 3829 /*
c39e4048
BK		 3830 * We cannot usefully set a default max_early_data here (which gets
3831 * propagated in SSL_new(), for the following reason: setting the
3832 * SSL field causes tls_construct_stoc_early_data() to tell the
3833 * client that early data will be accepted when constructing a TLS 1.3
3834 * session ticket, and the client will accordingly send us early data
3835 * when using that ticket (if the client has early data to send).
3836 * However, in order for the early data to actually be consumed by
3837 * the application, the application must also have calls to
3838 * SSL_read_early_data(); otherwise we'll just skip past the early data
3839 * and ignore it. So, since the application must add calls to
3840 * SSL_read_early_data(), we also require them to add
3841 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3842 * eliminating the bandwidth-wasting early data in the case described
3843 * above.
bfa9a9af 3844 */
c39e4048 3845 ret->max_early_data = 0;
bfa9a9af 3846
4e8548e8
MC		 3847 /*
3848 * Default recv_max_early_data is a fully loaded single record. Could be
3849 * split across multiple records in practice. We set this differently to
3850 * max_early_data so that, in the default case, we do not advertise any
3851 * support for early_data, but if a client were to send us some (e.g.
3852 * because of an old, stale ticket) then we will tolerate it and skip over
3853 * it.
3854 */
3855 ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
3856
36ff232c
MC		 3857 /* By default we send two session tickets automatically in TLSv1.3 */
3858 ret->num_tickets = 2;
9d0a8bb7 3859
8a5ed9dc
TM		 3860 ssl_ctx_system_config(ret);
3861
16203f7b 3862 return ret;
0f113f3e 3863 err:
6849b73c 3864 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
0f113f3e 3865 err2:
e0e920b1 3866 SSL_CTX_free(ret);
16203f7b 3867 return NULL;
0f113f3e 3868}
d02b48c6 3869
ba18627e
MC		 3870SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
3871{
d8652be0 3872 return SSL_CTX_new_ex(NULL, NULL, meth);
ba18627e
MC		 3873}
3874
c5ebfcab 3875int SSL_CTX_up_ref(SSL_CTX *ctx)
a18a31e4 3876{
16203f7b 3877 int i;
c5ebfcab 3878
2f545ae4 3879 if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0)
c5ebfcab
F		 3880 return 0;
3881
3882 REF_PRINT_COUNT("SSL_CTX", ctx);
3883 REF_ASSERT_ISNT(i < 2);
3884 return ((i > 1) ? 1 : 0);
a18a31e4
MC		 3885}
3886
4f43d0e7 3887void SSL_CTX_free(SSL_CTX *a)
0f113f3e
MC		 3888{
3889 int i;
9d2d857f 3890 size_t j;
d02b48c6 3891
0f113f3e
MC		 3892 if (a == NULL)
3893 return;
d02b48c6 3894
2f545ae4 3895 CRYPTO_DOWN_REF(&a->references, &i, a->lock);
f3f1cf84 3896 REF_PRINT_COUNT("SSL_CTX", a);
0f113f3e
MC		 3897 if (i > 0)
3898 return;
f3f1cf84 3899 REF_ASSERT_ISNT(i < 0);
0f113f3e 3900
222561fe 3901 X509_VERIFY_PARAM_free(a->param);
919ba009 3902 dane_ctx_final(&a->dane);
0f113f3e
MC		 3903
3904 /*
3905 * Free internal session cache. However: the remove_cb() may reference
3906 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3907 * after the sessions were flushed.
3908 * As the ex_data handling routines might also touch the session cache,
3909 * the most secure solution seems to be: empty (flush) the cache, then
3910 * free ex_data, then finally free the cache.
3911 * (See ticket [openssl.org #212].)
3912 */
3913 if (a->sessions != NULL)
3914 SSL_CTX_flush_sessions(a, 0);
3915
3916 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
25aaa98a 3917 lh_SSL_SESSION_free(a->sessions);
222561fe 3918 X509_STORE_free(a->cert_store);
ed29e82a
RP		 3919#ifndef OPENSSL_NO_CT
3920 CTLOG_STORE_free(a->ctlog_store);
3921#endif
25aaa98a
RS		 3922 sk_SSL_CIPHER_free(a->cipher_list);
3923 sk_SSL_CIPHER_free(a->cipher_list_by_id);
f865b081 3924 sk_SSL_CIPHER_free(a->tls13_ciphersuites);
e0e920b1 3925 ssl_cert_free(a->cert);
fa7c2637 3926 sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
98732979 3927 sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
79b2a2f2 3928 OSSL_STACK_OF_X509_free(a->extra_certs);
0f113f3e 3929 a->comp_methods = NULL;
e783bae2 3930#ifndef OPENSSL_NO_SRTP
25aaa98a 3931 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
e783bae2 3932#endif
edc032b5 3933#ifndef OPENSSL_NO_SRP
76cb077f 3934 ssl_ctx_srp_ctx_free_intern(a);
edc032b5 3935#endif
bdfe932d 3936#ifndef OPENSSL_NO_ENGINE
301fcb28 3937 tls_engine_finish(a->client_cert_engine);
ddac1974 3938#endif
8671b898 3939
aff8c126 3940 OPENSSL_free(a->ext.ecpointformats);
187753e0 3941 OPENSSL_free(a->ext.supportedgroups);
ddf8f1ce 3942 OPENSSL_free(a->ext.supported_groups_default);
aff8c126 3943 OPENSSL_free(a->ext.alpn);
4bfb96f2 3944 OPENSSL_secure_free(a->ext.secure);
8671b898 3945
c8f6c28a
MC		 3946 ssl_evp_md_free(a->md5);
3947 ssl_evp_md_free(a->sha1);
3948
9d2d857f
MC		 3949 for (j = 0; j < SSL_ENC_NUM_IDX; j++)
3950 ssl_evp_cipher_free(a->ssl_cipher_methods[j]);
3951 for (j = 0; j < SSL_MD_NUM_IDX; j++)
3952 ssl_evp_md_free(a->ssl_digest_methods[j]);
3953 for (j = 0; j < a->group_list_len; j++) {
3954 OPENSSL_free(a->group_list[j].tlsname);
3955 OPENSSL_free(a->group_list[j].realname);
3956 OPENSSL_free(a->group_list[j].algorithm);
3957 }
3958 OPENSSL_free(a->group_list);
c8f6c28a 3959
263ff2c9
MC		 3960 OPENSSL_free(a->sigalg_lookup_cache);
3961
16203f7b 3962 CRYPTO_THREAD_lock_free(a->lock);
acce0557
P		 3963#ifdef TSAN_REQUIRES_LOCKING
3964 CRYPTO_THREAD_lock_free(a->tsan_lock);
3965#endif
16203f7b 3966
ba18627e
MC		 3967 OPENSSL_free(a->propq);
3968
0f113f3e
MC		 3969 OPENSSL_free(a);
3970}
d02b48c6 3971
3ae76679 3972void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
0f113f3e
MC		 3973{
3974 ctx->default_passwd_callback = cb;
3975}
3976
3977void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
3978{
3979 ctx->default_passwd_callback_userdata = u;
3980}
3981
0c452abc
CH		 3982pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
3983{
3984 return ctx->default_passwd_callback;
3985}
3986
3987void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
3988{
3989 return ctx->default_passwd_callback_userdata;
3990}
3991
a974e64a
MC		 3992void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
3993{
38b051a1
TM		 3994 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3995
3996 if (sc == NULL)
3997 return;
3998
3999 sc->default_passwd_callback = cb;
a974e64a
MC		 4000}
4001
4002void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
4003{
38b051a1
TM		 4004 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4005
4006 if (sc == NULL)
4007 return;
4008
4009 sc->default_passwd_callback_userdata = u;
a974e64a
MC		 4010}
4011
0c452abc
CH		 4012pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
4013{
38b051a1
TM		 4014 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4015
4016 if (sc == NULL)
4017 return NULL;
4018
4019 return sc->default_passwd_callback;
0c452abc
CH		 4020}
4021
4022void *SSL_get_default_passwd_cb_userdata(SSL *s)
4023{
38b051a1
TM		 4024 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4025
4026 if (sc == NULL)
4027 return NULL;
4028
4029 return sc->default_passwd_callback_userdata;
0c452abc
CH		 4030}
4031
0f113f3e
MC		 4032void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
4033 int (*cb) (X509_STORE_CTX *, void *),
4034 void *arg)
4035{
4036 ctx->app_verify_callback = cb;
4037 ctx->app_verify_arg = arg;
4038}
4039
4040void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
4041 int (*cb) (int, X509_STORE_CTX *))
4042{
4043 ctx->verify_mode = mode;
4044 ctx->default_verify_callback = cb;
4045}
4046
4047void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
4048{
4049 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
4050}
4051
a230b26e 4052void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
0f113f3e
MC		 4053{
4054 ssl_cert_set_cert_cb(c->cert, cb, arg);
4055}
4056
4057void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
4058{
38b051a1
TM		 4059 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4060
4061 if (sc == NULL)
4062 return;
4063
4064 ssl_cert_set_cert_cb(sc->cert, cb, arg);
0f113f3e 4065}
18d71588 4066
38b051a1 4067void ssl_set_masks(SSL_CONNECTION *s)
0f113f3e 4068{
6383d316 4069 CERT *c = s->cert;
555cbb32 4070 uint32_t *pvalid = s->s3.tmp.valid_flags;
bc71f910 4071 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
361a1191 4072 unsigned long mask_k, mask_a;
361a1191 4073 int have_ecc_cert, ecdsa_ok;
462f4f4b 4074
0f113f3e
MC		 4075 if (c == NULL)
4076 return;
d02b48c6 4077
13c45372 4078 dh_tmp = (c->dh_tmp != NULL
13c45372 4079 || c->dh_tmp_cb != NULL
13c45372 4080 || c->dh_tmp_auto);
d02b48c6 4081
d0ff28f8 4082 rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
38e8f3cd
DSH		 4083 rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4084 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
6383d316 4085 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
0f113f3e
MC		 4086 mask_k = 0;
4087 mask_a = 0;
0e1dba93 4088
77359d22
RL		 4089 OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
4090 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
0f113f3e 4091
2a9b9654 4092#ifndef OPENSSL_NO_GOST
4020c0b3 4093 if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
5a5530a2 4094 mask_k |= SSL_kGOST | SSL_kGOST18;
e44380a9
DB		 4095 mask_a |= SSL_aGOST12;
4096 }
4020c0b3 4097 if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
5a5530a2 4098 mask_k |= SSL_kGOST | SSL_kGOST18;
e44380a9
DB		 4099 mask_a |= SSL_aGOST12;
4100 }
4020c0b3 4101 if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
0f113f3e
MC		 4102 mask_k |= SSL_kGOST;
4103 mask_a |= SSL_aGOST01;
4104 }
2a9b9654 4105#endif
0f113f3e 4106
361a1191 4107 if (rsa_enc)
0f113f3e 4108 mask_k |= SSL_kRSA;
d02b48c6 4109
0f113f3e
MC		 4110 if (dh_tmp)
4111 mask_k |= SSL_kDHE;
d02b48c6 4112
6aaa29fb
DSH		 4113 /*
4114 * If we only have an RSA-PSS certificate allow RSA authentication
4115 * if TLS 1.2 and peer supports it.
4116 */
4117
4118 if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
4119 && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
38b051a1 4120 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION))
0f113f3e 4121 mask_a |= SSL_aRSA;
d02b48c6 4122
0f113f3e
MC		 4123 if (dsa_sign) {
4124 mask_a |= SSL_aDSS;
0f113f3e 4125 }
d02b48c6 4126
0f113f3e 4127 mask_a |= SSL_aNULL;
d02b48c6 4128
0f113f3e
MC		 4129 /*
4130 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
4131 * depending on the key usage extension.
4132 */
0f113f3e 4133 if (have_ecc_cert) {
a8d8e06b 4134 uint32_t ex_kusage;
4020c0b3 4135 ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
a8d8e06b 4136 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
6383d316 4137 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
0f113f3e 4138 ecdsa_ok = 0;
c7c46256 4139 if (ecdsa_ok)
0f113f3e 4140 mask_a |= SSL_aECDSA;
0f113f3e 4141 }
b2021556
DSH		 4142 /* Allow Ed25519 for TLS 1.2 if peer supports it */
4143 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
4144 && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
38b051a1 4145 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
b2021556 4146 mask_a |= SSL_aECDSA;
0e1d6ecf
MC		 4147
4148 /* Allow Ed448 for TLS 1.2 if peer supports it */
4149 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
4150 && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
38b051a1 4151 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
0e1d6ecf 4152 mask_a |= SSL_aECDSA;
ea262260 4153
fe6ef247 4154 mask_k |= SSL_kECDHE;
ddac1974
NL		 4155
4156#ifndef OPENSSL_NO_PSK
0f113f3e
MC		 4157 mask_k |= SSL_kPSK;
4158 mask_a |= SSL_aPSK;
526f94ad
DSH		 4159 if (mask_k & SSL_kRSA)
4160 mask_k |= SSL_kRSAPSK;
4161 if (mask_k & SSL_kDHE)
4162 mask_k |= SSL_kDHEPSK;
4163 if (mask_k & SSL_kECDHE)
4164 mask_k |= SSL_kECDHEPSK;
ddac1974
NL		 4165#endif
4166
555cbb32
TS		 4167 s->s3.tmp.mask_k = mask_k;
4168 s->s3.tmp.mask_a = mask_a;
0f113f3e 4169}
d02b48c6 4170
38b051a1 4171int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CONNECTION *s)
0f113f3e 4172{
555cbb32 4173 if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
0f113f3e 4174 /* key usage, if present, must allow signing */
ce0c1f2b 4175 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
6849b73c 4176 ERR_raise(ERR_LIB_SSL, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
0f113f3e
MC		 4177 return 0;
4178 }
4179 }
0f113f3e
MC		 4180 return 1; /* all checks are ok */
4181}
ea262260 4182
38b051a1
TM		 4183int ssl_get_server_cert_serverinfo(SSL_CONNECTION *s,
4184 const unsigned char **serverinfo,
0f113f3e
MC		 4185 size_t *serverinfo_length)
4186{
555cbb32 4187 CERT_PKEY *cpk = s->s3.tmp.cert;
0f113f3e
MC		 4188 *serverinfo_length = 0;
4189
a497cf25 4190 if (cpk == NULL || cpk->serverinfo == NULL)
0f113f3e
MC		 4191 return 0;
4192
a497cf25
DSH		 4193 *serverinfo = cpk->serverinfo;
4194 *serverinfo_length = cpk->serverinfo_length;
0f113f3e
MC		 4195 return 1;
4196}
0f113f3e 4197
38b051a1 4198void ssl_update_cache(SSL_CONNECTION *s, int mode)
0f113f3e
MC		 4199{
4200 int i;
4201
4202 /*
4203 * If the session_id_length is 0, we are not supposed to cache it, and it
4204 * would be rather hard to do anyway :-)
4205 */
4206 if (s->session->session_id_length == 0)
4207 return;
4208
d316cdcf
BK		 4209 /*
4210 * If sid_ctx_length is 0 there is no specific application context
4211 * associated with this session, so when we try to resume it and
c4fa1f7f
BK		 4212 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
4213 * indication that this is actually a session for the proper application
4214 * context, and the *handshake* will fail, not just the resumption attempt.
4215 * Do not cache (on the server) these sessions that are not resumable
4216 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
d316cdcf 4217 */
c4fa1f7f 4218 if (s->server && s->session->sid_ctx_length == 0
d316cdcf
BK		 4219 && (s->verify_mode & SSL_VERIFY_PEER) != 0)
4220 return;
4221
0f113f3e 4222 i = s->session_ctx->session_cache_mode;
5d61491c 4223 if ((i & mode) != 0
38b051a1 4224 && (!s->hit || SSL_CONNECTION_IS_TLS13(s))) {
ee94ec2e
MC		 4225 /*
4226 * Add the session to the internal cache. In server side TLSv1.3 we
6cc0b3c2
MC		 4227 * normally don't do this because by default it's a full stateless ticket
4228 * with only a dummy session id so there is no reason to cache it,
4229 * unless:
ee94ec2e
MC		 4230 * - we are doing early_data, in which case we cache so that we can
4231 * detect replays
4232 * - the application has set a remove_session_cb so needs to know about
4233 * session timeout events
6cc0b3c2 4234 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
ee94ec2e
MC		 4235 */
4236 if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
38b051a1 4237 && (!SSL_CONNECTION_IS_TLS13(s)
ee94ec2e 4238 || !s->server
5d263fb7
MC		 4239 || (s->max_early_data > 0
4240 && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
6cc0b3c2
MC		 4241 || s->session_ctx->remove_session_cb != NULL
4242 || (s->options & SSL_OP_NO_TICKET) != 0))
ee94ec2e
MC		 4243 SSL_CTX_add_session(s->session_ctx, s->session);
4244
4245 /*
4246 * Add the session to the external cache. We do this even in server side
4247 * TLSv1.3 without early data because some applications just want to
4248 * know about the creation of a session and aren't doing a full cache.
4249 */
4250 if (s->session_ctx->new_session_cb != NULL) {
4251 SSL_SESSION_up_ref(s->session);
38b051a1
TM		 4252 if (!s->session_ctx->new_session_cb(SSL_CONNECTION_GET_SSL(s),
4253 s->session))
ee94ec2e
MC		 4254 SSL_SESSION_free(s->session);
4255 }
0f113f3e
MC		 4256 }
4257
4258 /* auto flush every 255 connections */
4259 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
9ef9088c 4260 TSAN_QUALIFIER int *stat;
acce0557 4261
1fcb4e4d
BK		 4262 if (mode & SSL_SESS_CACHE_CLIENT)
4263 stat = &s->session_ctx->stats.sess_connect_good;
4264 else
4265 stat = &s->session_ctx->stats.sess_accept_good;
acce0557 4266 if ((ssl_tsan_load(s->session_ctx, stat) & 0xff) == 0xff)
0f113f3e 4267 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
0f113f3e
MC		 4268 }
4269}
d02b48c6 4270
3499327b 4271const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
0f113f3e
MC		 4272{
4273 return ctx->method;
4274}
ba168244 4275
3499327b 4276const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
0f113f3e 4277{
26a7d938 4278 return s->method;
0f113f3e 4279}
d02b48c6 4280
4ebb342f 4281int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
0f113f3e 4282{
0f113f3e 4283 int ret = 1;
38b051a1
TM		 4284 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4285
4286 /* TODO(QUIC): Do we want this for QUIC? */
4287 if (sc == NULL
4288 || (s->type != SSL_TYPE_SSL_CONNECTION && s->method != meth))
4289 return 0;
0f113f3e
MC		 4290
4291 if (s->method != meth) {
919ba009 4292 const SSL_METHOD *sm = s->method;
38b051a1 4293 int (*hf) (SSL *) = sc->handshake_func;
0f113f3e 4294
919ba009 4295 if (sm->version == meth->version)
0f113f3e
MC		 4296 s->method = meth;
4297 else {
38b051a1 4298 sm->ssl_deinit(s);
0f113f3e 4299 s->method = meth;
38b051a1 4300 ret = s->method->ssl_init(s);
0f113f3e
MC		 4301 }
4302
919ba009 4303 if (hf == sm->ssl_connect)
38b051a1 4304 sc->handshake_func = meth->ssl_connect;
919ba009 4305 else if (hf == sm->ssl_accept)
38b051a1 4306 sc->handshake_func = meth->ssl_accept;
0f113f3e 4307 }
26a7d938 4308 return ret;
0f113f3e
MC		 4309}
4310
4311int SSL_get_error(const SSL *s, int i)
4312{
4313 int reason;
4314 unsigned long l;
4315 BIO *bio;
38b051a1 4316 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
0f113f3e
MC		 4317
4318 if (i > 0)
26a7d938 4319 return SSL_ERROR_NONE;
0f113f3e 4320
38b051a1
TM		 4321 /* TODO(QUIC): This will need more handling for QUIC_CONNECTIONs */
4322 if (sc == NULL)
4323 return SSL_ERROR_SSL;
4324
0f113f3e
MC		 4325 /*
4326 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
4327 * where we do encode the error
4328 */
4329 if ((l = ERR_peek_error()) != 0) {
4330 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
26a7d938 4331 return SSL_ERROR_SYSCALL;
0f113f3e 4332 else
26a7d938 4333 return SSL_ERROR_SSL;
0f113f3e
MC		 4334 }
4335
8051ab2b
MC		 4336 if (SSL_want_read(s)) {
4337 bio = SSL_get_rbio(s);
4338 if (BIO_should_read(bio))
26a7d938 4339 return SSL_ERROR_WANT_READ;
8051ab2b
MC		 4340 else if (BIO_should_write(bio))
4341 /*
4342 * This one doesn't make too much sense ... We never try to write
4343 * to the rbio, and an application program where rbio and wbio
4344 * are separate couldn't even know what it should wait for.
4345 * However if we ever set s->rwstate incorrectly (so that we have
4346 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
4347 * wbio *are* the same, this test works around that bug; so it
4348 * might be safer to keep it.
4349 */
26a7d938 4350 return SSL_ERROR_WANT_WRITE;
8051ab2b
MC		 4351 else if (BIO_should_io_special(bio)) {
4352 reason = BIO_get_retry_reason(bio);
4353 if (reason == BIO_RR_CONNECT)
26a7d938 4354 return SSL_ERROR_WANT_CONNECT;
8051ab2b 4355 else if (reason == BIO_RR_ACCEPT)
26a7d938 4356 return SSL_ERROR_WANT_ACCEPT;
8051ab2b 4357 else
26a7d938 4358 return SSL_ERROR_SYSCALL; /* unknown */
0f113f3e 4359 }
8051ab2b 4360 }
0f113f3e 4361
8051ab2b 4362 if (SSL_want_write(s)) {
69687aa8 4363 /* Access wbio directly - in order to use the buffered bio if present */
38b051a1 4364 bio = sc->wbio;
8051ab2b 4365 if (BIO_should_write(bio))
26a7d938 4366 return SSL_ERROR_WANT_WRITE;
8051ab2b 4367 else if (BIO_should_read(bio))
2e7dc7cd 4368 /*
8051ab2b 4369 * See above (SSL_want_read(s) with BIO_should_write(bio))
2e7dc7cd 4370 */
26a7d938 4371 return SSL_ERROR_WANT_READ;
8051ab2b
MC		 4372 else if (BIO_should_io_special(bio)) {
4373 reason = BIO_get_retry_reason(bio);
4374 if (reason == BIO_RR_CONNECT)
26a7d938 4375 return SSL_ERROR_WANT_CONNECT;
8051ab2b 4376 else if (reason == BIO_RR_ACCEPT)
26a7d938 4377 return SSL_ERROR_WANT_ACCEPT;
8051ab2b 4378 else
26a7d938 4379 return SSL_ERROR_SYSCALL;
0f113f3e 4380 }
07bbc92c 4381 }
6b1bb98f 4382 if (SSL_want_x509_lookup(s))
26a7d938 4383 return SSL_ERROR_WANT_X509_LOOKUP;
0c3eb279
DDO		 4384 if (SSL_want_retry_verify(s))
4385 return SSL_ERROR_WANT_RETRY_VERIFY;
6b1bb98f 4386 if (SSL_want_async(s))
8051ab2b 4387 return SSL_ERROR_WANT_ASYNC;
6b1bb98f 4388 if (SSL_want_async_job(s))
8051ab2b 4389 return SSL_ERROR_WANT_ASYNC_JOB;
a9c0d8be
DB		 4390 if (SSL_want_client_hello_cb(s))
4391 return SSL_ERROR_WANT_CLIENT_HELLO_CB;
8051ab2b 4392
38b051a1
TM		 4393 if ((sc->shutdown & SSL_RECEIVED_SHUTDOWN) &&
4394 (sc->s3.warn_alert == SSL_AD_CLOSE_NOTIFY))
26a7d938 4395 return SSL_ERROR_ZERO_RETURN;
8051ab2b 4396
26a7d938 4397 return SSL_ERROR_SYSCALL;
0f113f3e 4398}
d02b48c6 4399
add2f5ca
MC		 4400static int ssl_do_handshake_intern(void *vargs)
4401{
38b051a1
TM		 4402 struct ssl_async_args *args = (struct ssl_async_args *)vargs;
4403 SSL *s = args->s;
4404 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
add2f5ca 4405
38b051a1
TM		 4406 if (sc == NULL)
4407 return -1;
add2f5ca 4408
38b051a1 4409 return sc->handshake_func(s);
add2f5ca
MC		 4410}
4411
4f43d0e7 4412int SSL_do_handshake(SSL *s)
0f113f3e
MC		 4413{
4414 int ret = 1;
38b051a1
TM		 4415 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4416
4417 /* TODO(QUIC): Special handling for QUIC will be needed */
4418 if (sc == NULL)
4419 return -1;
0f113f3e 4420
38b051a1 4421 if (sc->handshake_func == NULL) {
6849b73c 4422 ERR_raise(ERR_LIB_SSL, SSL_R_CONNECTION_TYPE_NOT_SET);
add2f5ca 4423 return -1;
0f113f3e
MC		 4424 }
4425
38b051a1 4426 ossl_statem_check_finish_init(sc, -1);
49e7fe12 4427
c7f47786 4428 s->method->ssl_renegotiate_check(s, 0);
0f113f3e
MC		 4429
4430 if (SSL_in_init(s) || SSL_in_before(s)) {
38b051a1 4431 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
add2f5ca
MC		 4432 struct ssl_async_args args;
4433
09134f18 4434 memset(&args, 0, sizeof(args));
add2f5ca
MC		 4435 args.s = s;
4436
7fecbf6f 4437 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
add2f5ca 4438 } else {
38b051a1 4439 ret = sc->handshake_func(s);
add2f5ca 4440 }
0f113f3e 4441 }
add2f5ca 4442 return ret;
0f113f3e
MC		 4443}
4444
4f43d0e7 4445void SSL_set_accept_state(SSL *s)
0f113f3e 4446{
38b051a1
TM		 4447 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4448
4449 /* TODO(QUIC): Special handling for QUIC will be needed */
4450 if (sc == NULL)
4451 return;
4452
4453 sc->server = 1;
4454 sc->shutdown = 0;
4455 ossl_statem_clear(sc);
4456 sc->handshake_func = s->method->ssl_accept;
4457 clear_ciphers(sc);
0f113f3e 4458}
d02b48c6 4459
4f43d0e7 4460void SSL_set_connect_state(SSL *s)
0f113f3e 4461{
38b051a1
TM		 4462 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4463
4464 /* TODO(QUIC): Special handling for QUIC will be needed */
4465 if (sc == NULL)
4466 return;
4467
4468 sc->server = 0;
4469 sc->shutdown = 0;
4470 ossl_statem_clear(sc);
4471 sc->handshake_func = s->method->ssl_connect;
4472 clear_ciphers(sc);
0f113f3e 4473}
d02b48c6 4474
4f43d0e7 4475int ssl_undefined_function(SSL *s)
0f113f3e 4476{
6849b73c 4477 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
26a7d938 4478 return 0;
0f113f3e 4479}
d02b48c6 4480
41a15c4f 4481int ssl_undefined_void_function(void)
0f113f3e 4482{
6849b73c 4483 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
26a7d938 4484 return 0;
0f113f3e 4485}
41a15c4f 4486
0821bcd4 4487int ssl_undefined_const_function(const SSL *s)
0f113f3e 4488{
26a7d938 4489 return 0;
0f113f3e 4490}
0821bcd4 4491
2b8fa1d5 4492const SSL_METHOD *ssl_bad_method(int ver)
0f113f3e 4493{
6849b73c 4494 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
26a7d938 4495 return NULL;
0f113f3e 4496}
d02b48c6 4497
3eb2aff4 4498const char *ssl_protocol_to_string(int version)
7d650072 4499{
1287dabd 4500 switch (version)
2abacef1
MC		 4501 {
4502 case TLS1_3_VERSION:
582a17d6 4503 return "TLSv1.3";
2abacef1
MC		 4504
4505 case TLS1_2_VERSION:
7d650072 4506 return "TLSv1.2";
2abacef1
MC		 4507
4508 case TLS1_1_VERSION:
7d650072 4509 return "TLSv1.1";
2abacef1
MC		 4510
4511 case TLS1_VERSION:
ee3a6c64 4512 return "TLSv1";
2abacef1
MC		 4513
4514 case SSL3_VERSION:
7d650072 4515 return "SSLv3";
2abacef1
MC		 4516
4517 case DTLS1_BAD_VER:
7d650072 4518 return "DTLSv0.9";
2abacef1
MC		 4519
4520 case DTLS1_VERSION:
7d650072 4521 return "DTLSv1";
2abacef1
MC		 4522
4523 case DTLS1_2_VERSION:
7d650072 4524 return "DTLSv1.2";
2abacef1
MC		 4525
4526 default:
4527 return "unknown";
4528 }
0f113f3e 4529}
d02b48c6 4530
7d650072
KR		 4531const char *SSL_get_version(const SSL *s)
4532{
38b051a1
TM		 4533 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4534
4535 /* TODO(QUIC): Should QUIC return QUIC or TLSv1.3? */
4536 if (sc == NULL)
4537 return NULL;
4538
4539 return ssl_protocol_to_string(sc->version);
7d650072
KR		 4540}
4541
98732979 4542static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
0f113f3e
MC		 4543{
4544 STACK_OF(X509_NAME) *sk;
4545 X509_NAME *xn;
98732979
MC		 4546 int i;
4547
4548 if (src == NULL) {
4549 *dst = NULL;
4550 return 1;
4551 }
4552
4553 if ((sk = sk_X509_NAME_new_null()) == NULL)
4554 return 0;
4555 for (i = 0; i < sk_X509_NAME_num(src); i++) {
4556 xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
4557 if (xn == NULL) {
4558 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4559 return 0;
4560 }
4561 if (sk_X509_NAME_insert(sk, xn, i) == 0) {
4562 X509_NAME_free(xn);
4563 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4564 return 0;
4565 }
4566 }
4567 *dst = sk;
4568
4569 return 1;
4570}
4571
4572SSL *SSL_dup(SSL *s)
4573{
0f113f3e
MC		 4574 SSL *ret;
4575 int i;
38b051a1
TM		 4576 /* TODO(QUIC): Add a SSL_METHOD function for duplication */
4577 SSL_CONNECTION *retsc;
4578 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4579
4580 if (sc == NULL)
4581 return NULL;
0f113f3e 4582
919ba009
VD		 4583 /* If we're not quiescent, just up_ref! */
4584 if (!SSL_in_init(s) || !SSL_in_before(s)) {
2f545ae4 4585 CRYPTO_UP_REF(&s->references, &i, s->lock);
919ba009
VD		 4586 return s;
4587 }
4588
4589 /*
4590 * Otherwise, copy configuration state, and session if set.
4591 */
0f113f3e 4592 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
26a7d938 4593 return NULL;
38b051a1
TM		 4594 if ((retsc = SSL_CONNECTION_FROM_SSL_ONLY(ret)) == NULL)
4595 goto err;
0f113f3e 4596
38b051a1 4597 if (sc->session != NULL) {
919ba009
VD		 4598 /*
4599 * Arranges to share the same session via up_ref. This "copies"
4600 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4601 */
61986d32 4602 if (!SSL_copy_session_id(ret, s))
17dd65e6 4603 goto err;
0f113f3e
MC		 4604 } else {
4605 /*
4606 * No session has been established yet, so we have to expect that
4607 * s->cert or ret->cert will be changed later -- they should not both
4608 * point to the same object, and thus we can't use
4609 * SSL_copy_session_id.
4610 */
919ba009
VD		 4611 if (!SSL_set_ssl_method(ret, s->method))
4612 goto err;
0f113f3e 4613
38b051a1
TM		 4614 if (sc->cert != NULL) {
4615 ssl_cert_free(retsc->cert);
4616 retsc->cert = ssl_cert_dup(sc->cert);
4617 if (retsc->cert == NULL)
0f113f3e
MC		 4618 goto err;
4619 }
4620
38b051a1
TM		 4621 if (!SSL_set_session_id_context(ret, sc->sid_ctx,
4622 (int)sc->sid_ctx_length))
69f68237 4623 goto err;
0f113f3e
MC		 4624 }
4625
38b051a1 4626 if (!ssl_dane_dup(retsc, sc))
9f6b22b8 4627 goto err;
38b051a1
TM		 4628 retsc->version = sc->version;
4629 retsc->options = sc->options;
4630 retsc->min_proto_version = sc->min_proto_version;
4631 retsc->max_proto_version = sc->max_proto_version;
4632 retsc->mode = sc->mode;
0f113f3e
MC		 4633 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
4634 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
38b051a1
TM		 4635 retsc->msg_callback = sc->msg_callback;
4636 retsc->msg_callback_arg = sc->msg_callback_arg;
0f113f3e
MC		 4637 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
4638 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
38b051a1 4639 retsc->generate_session_id = sc->generate_session_id;
0f113f3e
MC		 4640
4641 SSL_set_info_callback(ret, SSL_get_info_callback(s));
4642
0f113f3e
MC		 4643 /* copy app data, a little dangerous perhaps */
4644 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
4645 goto err;
4646
38b051a1
TM		 4647 retsc->server = sc->server;
4648 if (sc->handshake_func) {
4649 if (sc->server)
919ba009
VD		 4650 SSL_set_accept_state(ret);
4651 else
4652 SSL_set_connect_state(ret);
4653 }
38b051a1
TM		 4654 retsc->shutdown = sc->shutdown;
4655 retsc->hit = sc->hit;
0f113f3e 4656
38b051a1
TM		 4657 retsc->default_passwd_callback = sc->default_passwd_callback;
4658 retsc->default_passwd_callback_userdata = sc->default_passwd_callback_userdata;
a974e64a 4659
38b051a1 4660 X509_VERIFY_PARAM_inherit(retsc->param, sc->param);
0f113f3e
MC		 4661
4662 /* dup the cipher_list and cipher_list_by_id stacks */
38b051a1
TM		 4663 if (sc->cipher_list != NULL) {
4664 if ((retsc->cipher_list = sk_SSL_CIPHER_dup(sc->cipher_list)) == NULL)
0f113f3e
MC		 4665 goto err;
4666 }
38b051a1
TM		 4667 if (sc->cipher_list_by_id != NULL)
4668 if ((retsc->cipher_list_by_id = sk_SSL_CIPHER_dup(sc->cipher_list_by_id))
0f113f3e
MC		 4669 == NULL)
4670 goto err;
4671
4672 /* Dup the client_CA list */
38b051a1
TM		 4673 if (!dup_ca_names(&retsc->ca_names, sc->ca_names)
4674 || !dup_ca_names(&retsc->client_ca_names, sc->client_ca_names))
98732979
MC		 4675 goto err;
4676
66696478 4677 return ret;
0f113f3e 4678
0f113f3e 4679 err:
66696478
RS		 4680 SSL_free(ret);
4681 return NULL;
0f113f3e 4682}
d02b48c6 4683
38b051a1 4684void ssl_clear_cipher_ctx(SSL_CONNECTION *s)
0f113f3e
MC		 4685{
4686 if (s->enc_read_ctx != NULL) {
846ec07d 4687 EVP_CIPHER_CTX_free(s->enc_read_ctx);
0f113f3e
MC		 4688 s->enc_read_ctx = NULL;
4689 }
4690 if (s->enc_write_ctx != NULL) {
846ec07d 4691 EVP_CIPHER_CTX_free(s->enc_write_ctx);
0f113f3e
MC		 4692 s->enc_write_ctx = NULL;
4693 }
09b6c2ef 4694#ifndef OPENSSL_NO_COMP
efa7dd64
RS		 4695 COMP_CTX_free(s->expand);
4696 s->expand = NULL;
4697 COMP_CTX_free(s->compress);
4698 s->compress = NULL;
0f113f3e
MC		 4699#endif
4700}
d02b48c6 4701
0821bcd4 4702X509 *SSL_get_certificate(const SSL *s)
0f113f3e 4703{
38b051a1
TM		 4704 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4705
4706 if (sc == NULL)
4707 return NULL;
4708
4709 if (sc->cert != NULL)
4710 return sc->cert->key->x509;
0f113f3e 4711 else
26a7d938 4712 return NULL;
0f113f3e 4713}
d02b48c6 4714
a25f9adc 4715EVP_PKEY *SSL_get_privatekey(const SSL *s)
0f113f3e 4716{
38b051a1
TM		 4717 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4718
4719 if (sc == NULL)
4720 return NULL;
4721
4722 if (sc->cert != NULL)
4723 return sc->cert->key->privatekey;
0f113f3e 4724 else
26a7d938 4725 return NULL;
0f113f3e 4726}
d02b48c6 4727
a25f9adc 4728X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
0f113f3e
MC		 4729{
4730 if (ctx->cert != NULL)
4731 return ctx->cert->key->x509;
4732 else
4733 return NULL;
4734}
a25f9adc
DSH		 4735
4736EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
0f113f3e
MC		 4737{
4738 if (ctx->cert != NULL)
4739 return ctx->cert->key->privatekey;
4740 else
4741 return NULL;
4742}
a25f9adc 4743
babb3798 4744const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
0f113f3e 4745{
38b051a1
TM		 4746 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4747
4748 if (sc == NULL)
4749 return NULL;
4750
4751 if ((sc->session != NULL) && (sc->session->cipher != NULL))
4752 return sc->session->cipher;
26a7d938 4753 return NULL;
0f113f3e
MC		 4754}
4755
0aed6e44
BK		 4756const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
4757{
38b051a1
TM		 4758 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4759
4760 if (sc == NULL)
4761 return NULL;
4762
4763 return sc->s3.tmp.new_cipher;
0aed6e44
BK		 4764}
4765
3499327b 4766const COMP_METHOD *SSL_get_current_compression(const SSL *s)
0f113f3e 4767{
9a555706 4768#ifndef OPENSSL_NO_COMP
38b051a1
TM		 4769 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
4770
4771 if (sc == NULL)
4772 return NULL;
4773
4774 return sc->compress ? COMP_CTX_get_method(sc->compress) : NULL;
9a555706
RS		 4775#else
4776 return NULL;
4777#endif
0f113f3e 4778}
377dcdba 4779
3499327b 4780const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
0f113f3e 4781{
9a555706 4782#ifndef OPENSSL_NO_COMP
38b051a1
TM		 4783 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
4784
4785 if (sc == NULL)
4786 return NULL;
4787
4788 return sc->expand ? COMP_CTX_get_method(sc->expand) : NULL;
9a555706
RS		 4789#else
4790 return NULL;
0f113f3e 4791#endif
9a555706 4792}
0f113f3e 4793
38b051a1 4794int ssl_init_wbio_buffer(SSL_CONNECTION *s)
0f113f3e
MC		 4795{
4796 BIO *bbio;
4797
2e7dc7cd
MC		 4798 if (s->bbio != NULL) {
4799 /* Already buffered. */
4800 return 1;
0f113f3e 4801 }
46417569 4802
2e7dc7cd
MC		 4803 bbio = BIO_new(BIO_f_buffer());
4804 if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) {
4805 BIO_free(bbio);
6849b73c 4806 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
46417569 4807 return 0;
0f113f3e 4808 }
2e7dc7cd
MC		 4809 s->bbio = bbio;
4810 s->wbio = BIO_push(bbio, s->wbio);
46417569
MC		 4811
4812 return 1;
0f113f3e 4813}
413c4f45 4814
38b051a1 4815int ssl_free_wbio_buffer(SSL_CONNECTION *s)
0f113f3e 4816{
62adbcee 4817 /* callers ensure s is never null */
0f113f3e 4818 if (s->bbio == NULL)
b77f3ed1 4819 return 1;
0f113f3e 4820
2e7dc7cd 4821 s->wbio = BIO_pop(s->wbio);
0f113f3e
MC		 4822 BIO_free(s->bbio);
4823 s->bbio = NULL;
b77f3ed1
MC		 4824
4825 return 1;
0f113f3e
MC		 4826}
4827
4828void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
4829{
4830 ctx->quiet_shutdown = mode;
4831}
58964a49 4832
0821bcd4 4833int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
0f113f3e 4834{
26a7d938 4835 return ctx->quiet_shutdown;
0f113f3e 4836}
58964a49 4837
0f113f3e
MC		 4838void SSL_set_quiet_shutdown(SSL *s, int mode)
4839{
38b051a1
TM		 4840 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4841
4842 /* TODO(QUIC): Do we want this for QUIC? */
4843 if (sc == NULL)
4844 return;
4845
4846 sc->quiet_shutdown = mode;
0f113f3e 4847}
58964a49 4848
0821bcd4 4849int SSL_get_quiet_shutdown(const SSL *s)
0f113f3e 4850{
38b051a1
TM		 4851 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
4852
4853 /* TODO(QUIC): Do we want this for QUIC? */
4854 if (sc == NULL)
4855 return 0;
4856
4857 return sc->quiet_shutdown;
0f113f3e 4858}
58964a49 4859
0f113f3e
MC		 4860void SSL_set_shutdown(SSL *s, int mode)
4861{
38b051a1
TM		 4862 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4863
4864 /* TODO(QUIC): Do we want this for QUIC? */
4865 if (sc == NULL)
4866 return;
4867
4868 sc->shutdown = mode;
0f113f3e 4869}
58964a49 4870
0821bcd4 4871int SSL_get_shutdown(const SSL *s)
0f113f3e 4872{
38b051a1
TM		 4873 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
4874
4875 /* TODO(QUIC): Do we want this for QUIC? */
4876 if (sc == NULL)
4877 return 0;
4878
4879 return sc->shutdown;
0f113f3e 4880}
58964a49 4881
0821bcd4 4882int SSL_version(const SSL *s)
0f113f3e 4883{
38b051a1
TM		 4884 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4885
4886 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
4887 if (sc == NULL)
4888 return 0;
4889
4890 return sc->version;
6546e9b2
AG		 4891}
4892
4893int SSL_client_version(const SSL *s)
4894{
38b051a1
TM		 4895 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4896
4897 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
4898 if (sc == NULL)
4899 return 0;
4900
4901 return sc->client_version;
0f113f3e 4902}
58964a49 4903
0821bcd4 4904SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
0f113f3e 4905{
6546e9b2 4906 return ssl->ctx;
0f113f3e
MC		 4907}
4908
4909SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
4910{
24a0d393 4911 CERT *new_cert;
38b051a1
TM		 4912 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
4913
4914 /* TODO(QUIC): Do we need this for QUIC support? */
4915 if (sc == NULL)
4916 return NULL;
4917
0f113f3e
MC		 4918 if (ssl->ctx == ctx)
4919 return ssl->ctx;
0f113f3e 4920 if (ctx == NULL)
38b051a1 4921 ctx = sc->session_ctx;
24a0d393
KR		 4922 new_cert = ssl_cert_dup(ctx->cert);
4923 if (new_cert == NULL) {
4924 return NULL;
0f113f3e 4925 }
21181889 4926
38b051a1 4927 if (!custom_exts_copy_flags(&new_cert->custext, &sc->cert->custext)) {
21181889
MC		 4928 ssl_cert_free(new_cert);
4929 return NULL;
4930 }
4931
38b051a1
TM		 4932 ssl_cert_free(sc->cert);
4933 sc->cert = new_cert;
0f113f3e
MC		 4934
4935 /*
4936 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
4937 * so setter APIs must prevent invalid lengths from entering the system.
4938 */
38b051a1 4939 if (!ossl_assert(sc->sid_ctx_length <= sizeof(sc->sid_ctx)))
380a522f 4940 return NULL;
0f113f3e
MC		 4941
4942 /*
4943 * If the session ID context matches that of the parent SSL_CTX,
4944 * inherit it from the new SSL_CTX as well. If however the context does
4945 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
4946 * leave it unchanged.
4947 */
4948 if ((ssl->ctx != NULL) &&
38b051a1
TM		 4949 (sc->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
4950 (memcmp(sc->sid_ctx, ssl->ctx->sid_ctx, sc->sid_ctx_length) == 0)) {
4951 sc->sid_ctx_length = ctx->sid_ctx_length;
4952 memcpy(&sc->sid_ctx, &ctx->sid_ctx, sizeof(sc->sid_ctx));
0f113f3e
MC		 4953 }
4954
16203f7b 4955 SSL_CTX_up_ref(ctx);
a230b26e 4956 SSL_CTX_free(ssl->ctx); /* decrement reference count */
0f113f3e
MC		 4957 ssl->ctx = ctx;
4958
16203f7b 4959 return ssl->ctx;
0f113f3e 4960}
ed3883d2 4961
4f43d0e7 4962int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
0f113f3e 4963{
d8652be0
MC		 4964 return X509_STORE_set_default_paths_ex(ctx->cert_store, ctx->libctx,
4965 ctx->propq);
0f113f3e 4966}
58964a49 4967
d84a7b20
MC		 4968int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
4969{
4970 X509_LOOKUP *lookup;
4971
4972 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
4973 if (lookup == NULL)
4974 return 0;
6dcb100f
RL		 4975
4976 /* We ignore errors, in case the directory doesn't exist */
4977 ERR_set_mark();
4978
d84a7b20
MC		 4979 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
4980
6dcb100f 4981 ERR_pop_to_mark();
d84a7b20
MC		 4982
4983 return 1;
4984}
4985
4986int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
4987{
4988 X509_LOOKUP *lookup;
4989
4990 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
4991 if (lookup == NULL)
4992 return 0;
4993
492bc359 4994 /* We ignore errors, in case the file doesn't exist */
6dcb100f
RL		 4995 ERR_set_mark();
4996
d8652be0
MC		 4997 X509_LOOKUP_load_file_ex(lookup, NULL, X509_FILETYPE_DEFAULT, ctx->libctx,
4998 ctx->propq);
d84a7b20 4999
6dcb100f
RL		 5000 ERR_pop_to_mark();
5001
5002 return 1;
5003}
5004
5005int SSL_CTX_set_default_verify_store(SSL_CTX *ctx)
5006{
5007 X509_LOOKUP *lookup;
5008
5009 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_store());
5010 if (lookup == NULL)
5011 return 0;
5012
5013 /* We ignore errors, in case the directory doesn't exist */
5014 ERR_set_mark();
5015
d8652be0 5016 X509_LOOKUP_add_store_ex(lookup, NULL, ctx->libctx, ctx->propq);
6dcb100f
RL		 5017
5018 ERR_pop_to_mark();
d84a7b20
MC		 5019
5020 return 1;
5021}
5022
6dcb100f
RL		 5023int SSL_CTX_load_verify_file(SSL_CTX *ctx, const char *CAfile)
5024{
d8652be0
MC		 5025 return X509_STORE_load_file_ex(ctx->cert_store, CAfile, ctx->libctx,
5026 ctx->propq);
6dcb100f
RL		 5027}
5028
5029int SSL_CTX_load_verify_dir(SSL_CTX *ctx, const char *CApath)
5030{
5031 return X509_STORE_load_path(ctx->cert_store, CApath);
5032}
5033
5034int SSL_CTX_load_verify_store(SSL_CTX *ctx, const char *CAstore)
5035{
d8652be0
MC		 5036 return X509_STORE_load_store_ex(ctx->cert_store, CAstore, ctx->libctx,
5037 ctx->propq);
6dcb100f
RL		 5038}
5039
303c0028 5040int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
0f113f3e
MC		 5041 const char *CApath)
5042{
6dcb100f
RL		 5043 if (CAfile == NULL && CApath == NULL)
5044 return 0;
5045 if (CAfile != NULL && !SSL_CTX_load_verify_file(ctx, CAfile))
5046 return 0;
5047 if (CApath != NULL && !SSL_CTX_load_verify_dir(ctx, CApath))
5048 return 0;
5049 return 1;
0f113f3e 5050}
58964a49 5051
45d87a1f 5052void SSL_set_info_callback(SSL *ssl,
0f113f3e
MC		 5053 void (*cb) (const SSL *ssl, int type, int val))
5054{
38b051a1
TM		 5055 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5056
5057 if (sc == NULL)
5058 return;
5059
5060 sc->info_callback = cb;
0f113f3e
MC		 5061}
5062
5063/*
5064 * One compiler (Diab DCC) doesn't like argument names in returned function
5065 * pointer.
5066 */
5067void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
5068 int /* type */ ,
5069 int /* val */ ) {
38b051a1
TM		 5070 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5071
5072 if (sc == NULL)
5073 return NULL;
5074
5075 return sc->info_callback;
0f113f3e 5076}
58964a49 5077
0f113f3e
MC		 5078void SSL_set_verify_result(SSL *ssl, long arg)
5079{
38b051a1
TM		 5080 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5081
5082 if (sc == NULL)
5083 return;
5084
5085 sc->verify_result = arg;
0f113f3e 5086}
58964a49 5087
0821bcd4 5088long SSL_get_verify_result(const SSL *ssl)
0f113f3e 5089{
38b051a1
TM		 5090 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5091
5092 if (sc == NULL)
5093 return 0;
5094
5095 return sc->verify_result;
0f113f3e
MC		 5096}
5097
d9f1c639 5098size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
858618e7 5099{
38b051a1
TM		 5100 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5101
5102 if (sc == NULL)
5103 return 0;
5104
6b8f5d0d 5105 if (outlen == 0)
38b051a1
TM		 5106 return sizeof(sc->s3.client_random);
5107 if (outlen > sizeof(sc->s3.client_random))
5108 outlen = sizeof(sc->s3.client_random);
5109 memcpy(out, sc->s3.client_random, outlen);
d9f1c639 5110 return outlen;
858618e7
NM		 5111}
5112
d9f1c639 5113size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
858618e7 5114{
38b051a1
TM		 5115 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5116
5117 if (sc == NULL)
5118 return 0;
5119
6b8f5d0d 5120 if (outlen == 0)
38b051a1
TM		 5121 return sizeof(sc->s3.server_random);
5122 if (outlen > sizeof(sc->s3.server_random))
5123 outlen = sizeof(sc->s3.server_random);
5124 memcpy(out, sc->s3.server_random, outlen);
d9f1c639 5125 return outlen;
858618e7
NM		 5126}
5127
d9f1c639 5128size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
a230b26e 5129 unsigned char *out, size_t outlen)
858618e7 5130{
d9f1c639
MC		 5131 if (outlen == 0)
5132 return session->master_key_length;
8c1a5343 5133 if (outlen > session->master_key_length)
858618e7
NM		 5134 outlen = session->master_key_length;
5135 memcpy(out, session->master_key, outlen);
d9f1c639 5136 return outlen;
858618e7
NM		 5137}
5138
725b0f1e 5139int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
911d63f2
MC		 5140 size_t len)
5141{
5142 if (len > sizeof(sess->master_key))
5143 return 0;
5144
5145 memcpy(sess->master_key, in, len);
5146 sess->master_key_length = len;
911d63f2
MC		 5147 return 1;
5148}
5149
5150
0f113f3e
MC		 5151int SSL_set_ex_data(SSL *s, int idx, void *arg)
5152{
26a7d938 5153 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
0f113f3e
MC		 5154}
5155
5156void *SSL_get_ex_data(const SSL *s, int idx)
5157{
26a7d938 5158 return CRYPTO_get_ex_data(&s->ex_data, idx);
0f113f3e
MC		 5159}
5160
0f113f3e
MC		 5161int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
5162{
26a7d938 5163 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
0f113f3e
MC		 5164}
5165
5166void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
5167{
26a7d938 5168 return CRYPTO_get_ex_data(&s->ex_data, idx);
0f113f3e 5169}
58964a49 5170
0821bcd4 5171X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
0f113f3e 5172{
26a7d938 5173 return ctx->cert_store;
0f113f3e 5174}
413c4f45 5175
0f113f3e
MC		 5176void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
5177{
222561fe 5178 X509_STORE_free(ctx->cert_store);
0f113f3e
MC		 5179 ctx->cert_store = store;
5180}
413c4f45 5181
b50052db
TS		 5182void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
5183{
5184 if (store != NULL)
5185 X509_STORE_up_ref(store);
5186 SSL_CTX_set_cert_store(ctx, store);
5187}
5188
0821bcd4 5189int SSL_want(const SSL *s)
0f113f3e 5190{
38b051a1
TM		 5191 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5192
5193 if (sc == NULL)
5194 return SSL_NOTHING;
5195
5196 return sc->rwstate;
0f113f3e 5197}
413c4f45 5198
ddac1974
NL		 5199#ifndef OPENSSL_NO_PSK
5200int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
0f113f3e
MC		 5201{
5202 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
6849b73c 5203 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
0f113f3e
MC		 5204 return 0;
5205 }
df6da24b 5206 OPENSSL_free(ctx->cert->psk_identity_hint);
0f113f3e 5207 if (identity_hint != NULL) {
7644a9ae 5208 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
df6da24b 5209 if (ctx->cert->psk_identity_hint == NULL)
0f113f3e
MC		 5210 return 0;
5211 } else
df6da24b 5212 ctx->cert->psk_identity_hint = NULL;
0f113f3e
MC		 5213 return 1;
5214}
ddac1974
NL		 5215
5216int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
0f113f3e 5217{
38b051a1
TM		 5218 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5219
5220 if (sc == NULL)
0f113f3e
MC		 5221 return 0;
5222
0f113f3e 5223 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
6849b73c 5224 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
0f113f3e
MC		 5225 return 0;
5226 }
38b051a1 5227 OPENSSL_free(sc->cert->psk_identity_hint);
0f113f3e 5228 if (identity_hint != NULL) {
38b051a1
TM		 5229 sc->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5230 if (sc->cert->psk_identity_hint == NULL)
0f113f3e
MC		 5231 return 0;
5232 } else
38b051a1 5233 sc->cert->psk_identity_hint = NULL;
0f113f3e
MC		 5234 return 1;
5235}
ddac1974
NL		 5236
5237const char *SSL_get_psk_identity_hint(const SSL *s)
0f113f3e 5238{
38b051a1
TM		 5239 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5240
5241 if (sc == NULL || sc->session == NULL)
0f113f3e 5242 return NULL;
38b051a1
TM		 5243
5244 return sc->session->psk_identity_hint;
0f113f3e 5245}
ddac1974
NL		 5246
5247const char *SSL_get_psk_identity(const SSL *s)
0f113f3e 5248{
38b051a1
TM		 5249 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5250
5251 if (sc == NULL || sc->session == NULL)
0f113f3e 5252 return NULL;
38b051a1
TM		 5253
5254 return sc->session->psk_identity;
0f113f3e 5255}
7806f3dd 5256
8cbfcc70 5257void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
0f113f3e 5258{
38b051a1
TM		 5259 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5260
5261 if (sc == NULL)
5262 return;
5263
5264 sc->psk_client_callback = cb;
0f113f3e 5265}
7806f3dd 5266
8cbfcc70 5267void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
0f113f3e
MC		 5268{
5269 ctx->psk_client_callback = cb;
5270}
7806f3dd 5271
8cbfcc70 5272void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
0f113f3e 5273{
38b051a1
TM		 5274 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5275
5276 if (sc == NULL)
5277 return;
5278
5279 sc->psk_server_callback = cb;
0f113f3e 5280}
7806f3dd 5281
8cbfcc70 5282void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
0f113f3e
MC		 5283{
5284 ctx->psk_server_callback = cb;
5285}
5286#endif
5287
f46184bd
MC		 5288void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
5289{
38b051a1
TM		 5290 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5291
5292 if (sc == NULL)
5293 return;
5294
5295 sc->psk_find_session_cb = cb;
f46184bd
MC		 5296}
5297
5298void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
5299 SSL_psk_find_session_cb_func cb)
5300{
5301 ctx->psk_find_session_cb = cb;
5302}
5303
5304void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
5305{
38b051a1
TM		 5306 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5307
5308 if (sc == NULL)
5309 return;
5310
5311 sc->psk_use_session_cb = cb;
f46184bd
MC		 5312}
5313
5314void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
5315 SSL_psk_use_session_cb_func cb)
5316{
5317 ctx->psk_use_session_cb = cb;
5318}
5319
0f113f3e
MC		 5320void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
5321 void (*cb) (int write_p, int version,
5322 int content_type, const void *buf,
5323 size_t len, SSL *ssl, void *arg))
5324{
5325 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5326}
5327
5328void SSL_set_msg_callback(SSL *ssl,
5329 void (*cb) (int write_p, int version,
5330 int content_type, const void *buf,
5331 size_t len, SSL *ssl, void *arg))
5332{
5333 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5334}
a661b653 5335
7c2d4fee 5336void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
0f113f3e
MC		 5337 int (*cb) (SSL *ssl,
5338 int
5339 is_forward_secure))
5340{
5341 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5342 (void (*)(void))cb);
5343}
5344
7c2d4fee 5345void SSL_set_not_resumable_session_callback(SSL *ssl,
0f113f3e
MC		 5346 int (*cb) (SSL *ssl,
5347 int is_forward_secure))
5348{
5349 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5350 (void (*)(void))cb);
5351}
5352
c649d10d
TS		 5353void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
5354 size_t (*cb) (SSL *ssl, int type,
5355 size_t len, void *arg))
5356{
5357 ctx->record_padding_cb = cb;
5358}
5359
5360void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
5361{
5362 ctx->record_padding_arg = arg;
5363}
5364
3499327b 5365void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
c649d10d
TS		 5366{
5367 return ctx->record_padding_arg;
5368}
5369
5370int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
5371{
5372 /* block size of 0 or 1 is basically no padding */
5373 if (block_size == 1)
5374 ctx->block_padding = 0;
5375 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5376 ctx->block_padding = block_size;
5377 else
5378 return 0;
5379 return 1;
5380}
5381
a6d36303 5382int SSL_set_record_padding_callback(SSL *ssl,
c649d10d
TS		 5383 size_t (*cb) (SSL *ssl, int type,
5384 size_t len, void *arg))
5385{
a6d36303 5386 BIO *b;
38b051a1
TM		 5387 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5388
5389 if (sc == NULL)
5390 return 0;
a6d36303
VF		 5391
5392 b = SSL_get_wbio(ssl);
5393 if (b == NULL || !BIO_get_ktls_send(b)) {
38b051a1 5394 sc->record_padding_cb = cb;
a6d36303
VF		 5395 return 1;
5396 }
5397 return 0;
c649d10d
TS		 5398}
5399
5400void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
5401{
38b051a1
TM		 5402 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5403
5404 if (sc == NULL)
5405 return;
5406
5407 sc->record_padding_arg = arg;
c649d10d
TS		 5408}
5409
3499327b 5410void *SSL_get_record_padding_callback_arg(const SSL *ssl)
c649d10d 5411{
38b051a1
TM		 5412 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5413
5414 if (sc == NULL)
5415 return NULL;
5416
5417 return sc->record_padding_arg;
c649d10d
TS		 5418}
5419
5420int SSL_set_block_padding(SSL *ssl, size_t block_size)
5421{
38b051a1
TM		 5422 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5423
5424 if (sc == NULL)
5425 return 0;
5426
c649d10d
TS		 5427 /* block size of 0 or 1 is basically no padding */
5428 if (block_size == 1)
38b051a1 5429 sc->block_padding = 0;
c649d10d 5430 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
38b051a1 5431 sc->block_padding = block_size;
c649d10d
TS		 5432 else
5433 return 0;
5434 return 1;
5435}
5436
9d0a8bb7
MC		 5437int SSL_set_num_tickets(SSL *s, size_t num_tickets)
5438{
38b051a1
TM		 5439 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5440
5441 if (sc == NULL)
5442 return 0;
5443
5444 sc->num_tickets = num_tickets;
9d0a8bb7
MC		 5445
5446 return 1;
5447}
5448
3499327b 5449size_t SSL_get_num_tickets(const SSL *s)
9d0a8bb7 5450{
38b051a1
TM		 5451 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5452
5453 if (sc == NULL)
5454 return 0;
5455
5456 return sc->num_tickets;
9d0a8bb7
MC		 5457}
5458
5459int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
5460{
5461 ctx->num_tickets = num_tickets;
5462
5463 return 1;
5464}
5465
3499327b 5466size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
9d0a8bb7
MC		 5467{
5468 return ctx->num_tickets;
5469}
5470
0f113f3e
MC		 5471/*
5472 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
8483a003 5473 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
69687aa8 5474 * If EVP_MD pointer is passed, initializes ctx with this |md|.
48722ff5 5475 * Returns the newly allocated ctx;
8671b898 5476 */
b948e2c5 5477
0f113f3e 5478EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
b948e2c5 5479{
0f113f3e 5480 ssl_clear_hash_ctx(hash);
bfb0641f 5481 *hash = EVP_MD_CTX_new();
5f3d93e4 5482 if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) {
bfb0641f 5483 EVP_MD_CTX_free(*hash);
5f3d93e4
MC		 5484 *hash = NULL;
5485 return NULL;
5486 }
0f113f3e 5487 return *hash;
b948e2c5 5488}
0f113f3e
MC		 5489
5490void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
b948e2c5
DSH		 5491{
5492
0d9824c1 5493 EVP_MD_CTX_free(*hash);
0f113f3e 5494 *hash = NULL;
b948e2c5 5495}
a661b653 5496
48fbcbac 5497/* Retrieve handshake hashes */
38b051a1
TM		 5498int ssl_handshake_hash(SSL_CONNECTION *s,
5499 unsigned char *out, size_t outlen,
8c1a5343 5500 size_t *hashlen)
48fbcbac 5501{
6e59a892 5502 EVP_MD_CTX *ctx = NULL;
555cbb32 5503 EVP_MD_CTX *hdgst = s->s3.handshake_dgst;
ed576acd 5504 int hashleni = EVP_MD_CTX_get_size(hdgst);
8c1a5343
MC		 5505 int ret = 0;
5506
f63a17d6 5507 if (hashleni < 0 || (size_t)hashleni > outlen) {
c48ffbcc 5508 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
28ba2541 5509 goto err;
f63a17d6 5510 }
8c1a5343 5511
bfb0641f 5512 ctx = EVP_MD_CTX_new();
147ed5f9
TL		 5513 if (ctx == NULL) {
5514 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6e59a892 5515 goto err;
147ed5f9 5516 }
8c1a5343 5517
6e59a892 5518 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
f63a17d6 5519 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
c48ffbcc 5520 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
8c1a5343 5521 goto err;
f63a17d6 5522 }
8c1a5343
MC		 5523
5524 *hashlen = hashleni;
5525
5526 ret = 1;
48fbcbac 5527 err:
bfb0641f 5528 EVP_MD_CTX_free(ctx);
48fbcbac
DSH		 5529 return ret;
5530}
5531
c04b66b1 5532int SSL_session_reused(const SSL *s)
0f113f3e 5533{
38b051a1
TM		 5534 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5535
5536 if (sc == NULL)
5537 return 0;
5538
5539 return sc->hit;
0f113f3e 5540}
08557cf2 5541
69443116 5542int SSL_is_server(const SSL *s)
0f113f3e 5543{
38b051a1
TM		 5544 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5545
5546 if (sc == NULL)
5547 return 0;
5548
5549 return sc->server;
0f113f3e 5550}
87adf1fa 5551
00db8c60 5552#ifndef OPENSSL_NO_DEPRECATED_1_1_0
47153c72
RS		 5553void SSL_set_debug(SSL *s, int debug)
5554{
5555 /* Old function was do-nothing anyway... */
5556 (void)s;
5557 (void)debug;
5558}
5559#endif
5560
b362ccab 5561void SSL_set_security_level(SSL *s, int level)
0f113f3e 5562{
38b051a1
TM		 5563 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5564
5565 if (sc == NULL)
5566 return;
5567
5568 sc->cert->sec_level = level;
0f113f3e 5569}
b362ccab
DSH		 5570
5571int SSL_get_security_level(const SSL *s)
0f113f3e 5572{
38b051a1
TM		 5573 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5574
5575 if (sc == NULL)
5576 return 0;
5577
5578 return sc->cert->sec_level;
0f113f3e 5579}
b362ccab 5580
0f113f3e 5581void SSL_set_security_callback(SSL *s,
a230b26e
EK		 5582 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5583 int op, int bits, int nid,
5584 void *other, void *ex))
0f113f3e 5585{
38b051a1
TM		 5586 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5587
5588 if (sc == NULL)
5589 return;
5590
5591 sc->cert->sec_cb = cb;
0f113f3e 5592}
b362ccab 5593
a230b26e
EK		 5594int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
5595 const SSL_CTX *ctx, int op,
5596 int bits, int nid, void *other,
5597 void *ex) {
38b051a1
TM		 5598 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5599
5600 if (sc == NULL)
5601 return NULL;
5602
5603 return sc->cert->sec_cb;
0f113f3e 5604}
b362ccab
DSH		 5605
5606void SSL_set0_security_ex_data(SSL *s, void *ex)
0f113f3e 5607{
38b051a1
TM		 5608 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5609
5610 if (sc == NULL)
5611 return;
5612
5613 sc->cert->sec_ex = ex;
0f113f3e 5614}
b362ccab
DSH		 5615
5616void *SSL_get0_security_ex_data(const SSL *s)
0f113f3e 5617{
38b051a1
TM		 5618 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5619
5620 if (sc == NULL)
5621 return NULL;
5622
5623 return sc->cert->sec_ex;
0f113f3e 5624}
b362ccab
DSH		 5625
5626void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
0f113f3e
MC		 5627{
5628 ctx->cert->sec_level = level;
5629}
b362ccab
DSH		 5630
5631int SSL_CTX_get_security_level(const SSL_CTX *ctx)
0f113f3e
MC		 5632{
5633 return ctx->cert->sec_level;
5634}
b362ccab 5635
0f113f3e 5636void SSL_CTX_set_security_callback(SSL_CTX *ctx,
a230b26e
EK		 5637 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5638 int op, int bits, int nid,
5639 void *other, void *ex))
0f113f3e
MC		 5640{
5641 ctx->cert->sec_cb = cb;
5642}
b362ccab 5643
e4646a89
KR		 5644int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
5645 const SSL_CTX *ctx,
0f113f3e
MC		 5646 int op, int bits,
5647 int nid,
5648 void *other,
5649 void *ex) {
5650 return ctx->cert->sec_cb;
5651}
b362ccab
DSH		 5652
5653void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
0f113f3e
MC		 5654{
5655 ctx->cert->sec_ex = ex;
5656}
b362ccab
DSH		 5657
5658void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
0f113f3e
MC		 5659{
5660 return ctx->cert->sec_ex;
5661}
b362ccab 5662
56bd1783 5663uint64_t SSL_CTX_get_options(const SSL_CTX *ctx)
8106cb8b
VD		 5664{
5665 return ctx->options;
5666}
a230b26e 5667
56bd1783 5668uint64_t SSL_get_options(const SSL *s)
8106cb8b 5669{
38b051a1
TM		 5670 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5671
5672 if (sc == NULL)
5673 return 0;
5674
5675 return sc->options;
8106cb8b 5676}
a230b26e 5677
56bd1783 5678uint64_t SSL_CTX_set_options(SSL_CTX *ctx, uint64_t op)
8106cb8b
VD		 5679{
5680 return ctx->options |= op;
5681}
a230b26e 5682
56bd1783 5683uint64_t SSL_set_options(SSL *s, uint64_t op)
8106cb8b 5684{
38b051a1 5685 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4566dae7 5686 OSSL_PARAM options[2], *opts = options;
38b051a1
TM		 5687
5688 if (sc == NULL)
5689 return 0;
5690
4566dae7
MC		 5691 sc->options |= op;
5692
5693 *opts++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS,
5694 &sc->options);
5695 *opts = OSSL_PARAM_construct_end();
5696
5697 /* Ignore return value */
5698 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
5699
5700 return sc->options;
8106cb8b 5701}
a230b26e 5702
56bd1783 5703uint64_t SSL_CTX_clear_options(SSL_CTX *ctx, uint64_t op)
8106cb8b
VD		 5704{
5705 return ctx->options &= ~op;
5706}
a230b26e 5707
56bd1783 5708uint64_t SSL_clear_options(SSL *s, uint64_t op)
8106cb8b 5709{
38b051a1
TM		 5710 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5711
5712 if (sc == NULL)
5713 return 0;
5714
5715 return sc->options &= ~op;
8106cb8b
VD		 5716}
5717
696178ed
DSH		 5718STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
5719{
38b051a1
TM		 5720 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5721
5722 if (sc == NULL)
5723 return NULL;
5724
5725 return sc->verified_chain;
696178ed
DSH		 5726}
5727
0f113f3e 5728IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
ed29e82a
RP		 5729
5730#ifndef OPENSSL_NO_CT
5731
5732/*
5733 * Moves SCTs from the |src| stack to the |dst| stack.
5734 * The source of each SCT will be set to |origin|.
5735 * If |dst| points to a NULL pointer, a new stack will be created and owned by
5736 * the caller.
5737 * Returns the number of SCTs moved, or a negative integer if an error occurs.
5738 */
a230b26e
EK		 5739static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
5740 sct_source_t origin)
ed29e82a
RP		 5741{
5742 int scts_moved = 0;
5743 SCT *sct = NULL;
5744
5745 if (*dst == NULL) {
5746 *dst = sk_SCT_new_null();
5747 if (*dst == NULL) {
6849b73c 5748 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
ed29e82a
RP		 5749 goto err;
5750 }
5751 }
5752
30eba7f3
DDO		 5753 while (sk_SCT_num(src) > 0) {
5754 sct = sk_SCT_pop(src);
ed29e82a
RP		 5755 if (SCT_set_source(sct, origin) != 1)
5756 goto err;
5757
5758 if (sk_SCT_push(*dst, sct) <= 0)
5759 goto err;
5760 scts_moved += 1;
5761 }
5762
5763 return scts_moved;
a230b26e 5764 err:
ed29e82a 5765 if (sct != NULL)
a230b26e 5766 sk_SCT_push(src, sct); /* Put the SCT back */
cc7113e8 5767 return -1;
ed29e82a
RP		 5768}
5769
5770/*
a230b26e 5771 * Look for data collected during ServerHello and parse if found.
6b13bd1d 5772 * Returns the number of SCTs extracted.
a230b26e 5773 */
38b051a1 5774static int ct_extract_tls_extension_scts(SSL_CONNECTION *s)
ed29e82a
RP		 5775{
5776 int scts_extracted = 0;
5777
aff8c126
RS		 5778 if (s->ext.scts != NULL) {
5779 const unsigned char *p = s->ext.scts;
5780 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
ed29e82a
RP		 5781
5782 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
5783
5784 SCT_LIST_free(scts);
5785 }
5786
5787 return scts_extracted;
5788}
5789
5790/*
5791 * Checks for an OCSP response and then attempts to extract any SCTs found if it
5792 * contains an SCT X509 extension. They will be stored in |s->scts|.
5793 * Returns:
5794 * - The number of SCTs extracted, assuming an OCSP response exists.
5795 * - 0 if no OCSP response exists or it contains no SCTs.
5796 * - A negative integer if an error occurs.
5797 */
38b051a1 5798static int ct_extract_ocsp_response_scts(SSL_CONNECTION *s)
ed29e82a 5799{
a230b26e 5800# ifndef OPENSSL_NO_OCSP
ed29e82a
RP		 5801 int scts_extracted = 0;
5802 const unsigned char *p;
5803 OCSP_BASICRESP *br = NULL;
5804 OCSP_RESPONSE *rsp = NULL;
5805 STACK_OF(SCT) *scts = NULL;
5806 int i;
5807
aff8c126 5808 if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
ed29e82a
RP		 5809 goto err;
5810
aff8c126
RS		 5811 p = s->ext.ocsp.resp;
5812 rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
ed29e82a
RP		 5813 if (rsp == NULL)
5814 goto err;
5815
5816 br = OCSP_response_get1_basic(rsp);
5817 if (br == NULL)
5818 goto err;
5819
5820 for (i = 0; i < OCSP_resp_count(br); ++i) {
5821 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
5822
5823 if (single == NULL)
5824 continue;
5825
a230b26e
EK		 5826 scts =
5827 OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
5828 scts_extracted =
5829 ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
ed29e82a
RP		 5830 if (scts_extracted < 0)
5831 goto err;
5832 }
a230b26e 5833 err:
ed29e82a
RP		 5834 SCT_LIST_free(scts);
5835 OCSP_BASICRESP_free(br);
5836 OCSP_RESPONSE_free(rsp);
5837 return scts_extracted;
a230b26e 5838# else
3e41ac35
MC		 5839 /* Behave as if no OCSP response exists */
5840 return 0;
a230b26e 5841# endif
ed29e82a
RP		 5842}
5843
5844/*
5845 * Attempts to extract SCTs from the peer certificate.
5846 * Return the number of SCTs extracted, or a negative integer if an error
5847 * occurs.
5848 */
38b051a1 5849static int ct_extract_x509v3_extension_scts(SSL_CONNECTION *s)
ed29e82a
RP		 5850{
5851 int scts_extracted = 0;
3f3c7d26 5852 X509 *cert = s->session != NULL ? s->session->peer : NULL;
ed29e82a
RP		 5853
5854 if (cert != NULL) {
5855 STACK_OF(SCT) *scts =
5856 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
5857
5858 scts_extracted =
5859 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
5860
5861 SCT_LIST_free(scts);
5862 }
5863
5864 return scts_extracted;
5865}
5866
5867/*
5868 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
5869 * response (if it exists) and X509v3 extensions in the certificate.
5870 * Returns NULL if an error occurs.
5871 */
5872const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
5873{
38b051a1
TM		 5874 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5875
5876 if (sc == NULL)
5877 return NULL;
5878
5879 if (!sc->scts_parsed) {
5880 if (ct_extract_tls_extension_scts(sc) < 0 ||
5881 ct_extract_ocsp_response_scts(sc) < 0 ||
5882 ct_extract_x509v3_extension_scts(sc) < 0)
ed29e82a
RP		 5883 goto err;
5884
38b051a1 5885 sc->scts_parsed = 1;
ed29e82a 5886 }
38b051a1 5887 return sc->scts;
a230b26e 5888 err:
ed29e82a
RP		 5889 return NULL;
5890}
5891
a230b26e 5892static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx,
43341433 5893 const STACK_OF(SCT) *scts, void *unused_arg)
ed29e82a 5894{
43341433
VD		 5895 return 1;
5896}
5897
a230b26e 5898static int ct_strict(const CT_POLICY_EVAL_CTX * ctx,
43341433
VD		 5899 const STACK_OF(SCT) *scts, void *unused_arg)
5900{
5901 int count = scts != NULL ? sk_SCT_num(scts) : 0;
5902 int i;
ed29e82a 5903
43341433
VD		 5904 for (i = 0; i < count; ++i) {
5905 SCT *sct = sk_SCT_value(scts, i);
5906 int status = SCT_get_validation_status(sct);
5907
5908 if (status == SCT_VALIDATION_STATUS_VALID)
5909 return 1;
5910 }
6849b73c 5911 ERR_raise(ERR_LIB_SSL, SSL_R_NO_VALID_SCTS);
43341433
VD		 5912 return 0;
5913}
5914
5915int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
5916 void *arg)
5917{
38b051a1
TM		 5918 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5919
5920 if (sc == NULL)
5921 return 0;
5922
ed29e82a
RP		 5923 /*
5924 * Since code exists that uses the custom extension handler for CT, look
5925 * for this and throw an error if they have already registered to use CT.
5926 */
5927 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
a230b26e
EK		 5928 TLSEXT_TYPE_signed_certificate_timestamp))
5929 {
6849b73c 5930 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
43341433 5931 return 0;
ed29e82a
RP		 5932 }
5933
ed29e82a 5934 if (callback != NULL) {
a230b26e
EK		 5935 /*
5936 * If we are validating CT, then we MUST accept SCTs served via OCSP
5937 */
ed29e82a 5938 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
43341433 5939 return 0;
ed29e82a
RP		 5940 }
5941
38b051a1
TM		 5942 sc->ct_validation_callback = callback;
5943 sc->ct_validation_callback_arg = arg;
43341433
VD		 5944
5945 return 1;
ed29e82a
RP		 5946}
5947
43341433 5948int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
a230b26e 5949 ssl_ct_validation_cb callback, void *arg)
ed29e82a 5950{
ed29e82a
RP		 5951 /*
5952 * Since code exists that uses the custom extension handler for CT, look for
5953 * this and throw an error if they have already registered to use CT.
5954 */
5955 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
a230b26e
EK		 5956 TLSEXT_TYPE_signed_certificate_timestamp))
5957 {
6849b73c 5958 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
43341433 5959 return 0;
ed29e82a
RP		 5960 }
5961
5962 ctx->ct_validation_callback = callback;
5963 ctx->ct_validation_callback_arg = arg;
43341433 5964 return 1;
ed29e82a
RP		 5965}
5966
43341433 5967int SSL_ct_is_enabled(const SSL *s)
ed29e82a 5968{
38b051a1
TM		 5969 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5970
5971 if (sc == NULL)
5972 return 0;
5973
5974 return sc->ct_validation_callback != NULL;
ed29e82a
RP		 5975}
5976
43341433 5977int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
ed29e82a 5978{
43341433 5979 return ctx->ct_validation_callback != NULL;
ed29e82a
RP		 5980}
5981
38b051a1 5982int ssl_validate_ct(SSL_CONNECTION *s)
ed29e82a
RP		 5983{
5984 int ret = 0;
3f3c7d26 5985 X509 *cert = s->session != NULL ? s->session->peer : NULL;
43341433 5986 X509 *issuer;
b9aec69a 5987 SSL_DANE *dane = &s->dane;
ed29e82a
RP		 5988 CT_POLICY_EVAL_CTX *ctx = NULL;
5989 const STACK_OF(SCT) *scts;
5990
43341433
VD		 5991 /*
5992 * If no callback is set, the peer is anonymous, or its chain is invalid,
5993 * skip SCT validation - just return success. Applications that continue
5994 * handshakes without certificates, with unverified chains, or pinned leaf
5995 * certificates are outside the scope of the WebPKI and CT.
5996 *
5997 * The above exclusions notwithstanding the vast majority of peers will
5998 * have rather ordinary certificate chains validated by typical
5999 * applications that perform certificate verification and therefore will
6000 * process SCTs when enabled.
6001 */
6002 if (s->ct_validation_callback == NULL || cert == NULL ||
6003 s->verify_result != X509_V_OK ||
a230b26e 6004 s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
ed29e82a
RP		 6005 return 1;
6006
43341433
VD		 6007 /*
6008 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
6009 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
6010 */
6011 if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
6012 switch (dane->mtlsa->usage) {
6013 case DANETLS_USAGE_DANE_TA:
6014 case DANETLS_USAGE_DANE_EE:
6015 return 1;
6016 }
ed29e82a
RP		 6017 }
6018
38b051a1
TM		 6019 ctx = CT_POLICY_EVAL_CTX_new_ex(SSL_CONNECTION_GET_CTX(s)->libctx,
6020 SSL_CONNECTION_GET_CTX(s)->propq);
ed29e82a 6021 if (ctx == NULL) {
c48ffbcc 6022 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
ed29e82a
RP		 6023 goto end;
6024 }
6025
43341433 6026 issuer = sk_X509_value(s->verified_chain, 1);
a1bb7708
RP		 6027 CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
6028 CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
38b051a1
TM		 6029 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx,
6030 SSL_CONNECTION_GET_CTX(s)->ctlog_store);
6a71e06d 6031 CT_POLICY_EVAL_CTX_set_time(
38b051a1 6032 ctx, (uint64_t)SSL_SESSION_get_time(s->session) * 1000);
ed29e82a 6033
38b051a1 6034 scts = SSL_get0_peer_scts(SSL_CONNECTION_GET_SSL(s));
ed29e82a 6035
43341433
VD		 6036 /*
6037 * This function returns success (> 0) only when all the SCTs are valid, 0
6038 * when some are invalid, and < 0 on various internal errors (out of
6039 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
6040 * reason to abort the handshake, that decision is up to the callback.
6041 * Therefore, we error out only in the unexpected case that the return
6042 * value is negative.
6043 *
6044 * XXX: One might well argue that the return value of this function is an
f430ba31 6045 * unfortunate design choice. Its job is only to determine the validation
43341433
VD		 6046 * status of each of the provided SCTs. So long as it correctly separates
6047 * the wheat from the chaff it should return success. Failure in this case
6048 * ought to correspond to an inability to carry out its duties.
6049 */
6050 if (SCT_LIST_validate(scts, ctx) < 0) {
c48ffbcc 6051 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_SCT_VERIFICATION_FAILED);
ed29e82a
RP		 6052 goto end;
6053 }
6054
6055 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
6056 if (ret < 0)
a230b26e 6057 ret = 0; /* This function returns 0 on failure */
f63a17d6 6058 if (!ret)
c48ffbcc 6059 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_CALLBACK_FAILED);
ed29e82a 6060
a230b26e 6061 end:
ed29e82a 6062 CT_POLICY_EVAL_CTX_free(ctx);
f75b34c8
VD		 6063 /*
6064 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
6065 * failure return code here. Also the application may wish the complete
6066 * the handshake, and then disconnect cleanly at a higher layer, after
6067 * checking the verification status of the completed connection.
6068 *
6069 * We therefore force a certificate verification failure which will be
6070 * visible via SSL_get_verify_result() and cached as part of any resumed
6071 * session.
6072 *
6073 * Note: the permissive callback is for information gathering only, always
6074 * returns success, and does not affect verification status. Only the
6075 * strict callback or a custom application-specified callback can trigger
6076 * connection failure or record a verification error.
6077 */
6078 if (ret <= 0)
6079 s->verify_result = X509_V_ERR_NO_VALID_SCTS;
ed29e82a
RP		 6080 return ret;
6081}
6082
43341433
VD		 6083int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
6084{
6085 switch (validation_mode) {
6086 default:
6849b73c 6087 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
43341433
VD		 6088 return 0;
6089 case SSL_CT_VALIDATION_PERMISSIVE:
6090 return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
6091 case SSL_CT_VALIDATION_STRICT:
6092 return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
6093 }
6094}
6095
6096int SSL_enable_ct(SSL *s, int validation_mode)
6097{
6098 switch (validation_mode) {
6099 default:
6849b73c 6100 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
43341433
VD		 6101 return 0;
6102 case SSL_CT_VALIDATION_PERMISSIVE:
6103 return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
6104 case SSL_CT_VALIDATION_STRICT:
6105 return SSL_set_ct_validation_callback(s, ct_strict, NULL);
6106 }
6107}
6108
ed29e82a
RP		 6109int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
6110{
328f36c5 6111 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
ed29e82a
RP		 6112}
6113
6114int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
6115{
6116 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
6117}
6118
a230b26e 6119void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs)
8359b57f
RP		 6120{
6121 CTLOG_STORE_free(ctx->ctlog_store);
6122 ctx->ctlog_store = logs;
6123}
6124
6125const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
6126{
6127 return ctx->ctlog_store;
6128}
6129
6b1bb98f
BK		 6130#endif /* OPENSSL_NO_CT */
6131
a9c0d8be
DB		 6132void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
6133 void *arg)
6b1bb98f 6134{
a9c0d8be
DB		 6135 c->client_hello_cb = cb;
6136 c->client_hello_cb_arg = arg;
6b1bb98f
BK		 6137}
6138
a9c0d8be 6139int SSL_client_hello_isv2(SSL *s)
6b1bb98f 6140{
38b051a1
TM		 6141 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6142
6143 if (sc == NULL)
6144 return 0;
6145
6146 if (sc->clienthello == NULL)
6b1bb98f 6147 return 0;
38b051a1 6148 return sc->clienthello->isv2;
6b1bb98f
BK		 6149}
6150
a9c0d8be 6151unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
6b1bb98f 6152{
38b051a1
TM		 6153 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6154
6155 if (sc == NULL)
6156 return 0;
6157
6158 if (sc->clienthello == NULL)
6b1bb98f 6159 return 0;
38b051a1 6160 return sc->clienthello->legacy_version;
6b1bb98f
BK		 6161}
6162
a9c0d8be 6163size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out)
6b1bb98f 6164{
38b051a1
TM		 6165 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6166
6167 if (sc == NULL)
6168 return 0;
6169
6170 if (sc->clienthello == NULL)
6b1bb98f
BK		 6171 return 0;
6172 if (out != NULL)
38b051a1 6173 *out = sc->clienthello->random;
6b1bb98f
BK		 6174 return SSL3_RANDOM_SIZE;
6175}
6176
a9c0d8be 6177size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
6b1bb98f 6178{
38b051a1
TM		 6179 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6180
6181 if (sc == NULL)
6182 return 0;
6183
6184 if (sc->clienthello == NULL)
6b1bb98f
BK		 6185 return 0;
6186 if (out != NULL)
38b051a1
TM		 6187 *out = sc->clienthello->session_id;
6188 return sc->clienthello->session_id_len;
6b1bb98f
BK		 6189}
6190
a9c0d8be 6191size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
6b1bb98f 6192{
38b051a1
TM		 6193 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6194
6195 if (sc == NULL)
6196 return 0;
6197
6198 if (sc->clienthello == NULL)
6b1bb98f
BK		 6199 return 0;
6200 if (out != NULL)
38b051a1
TM		 6201 *out = PACKET_data(&sc->clienthello->ciphersuites);
6202 return PACKET_remaining(&sc->clienthello->ciphersuites);
6b1bb98f
BK		 6203}
6204
a9c0d8be 6205size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
6b1bb98f 6206{
38b051a1
TM		 6207 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6208
6209 if (sc == NULL)
6210 return 0;
6211
6212 if (sc->clienthello == NULL)
6b1bb98f
BK		 6213 return 0;
6214 if (out != NULL)
38b051a1
TM		 6215 *out = sc->clienthello->compressions;
6216 return sc->clienthello->compressions_len;
6b1bb98f
BK		 6217}
6218
a9c0d8be 6219int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
193b5d76
BK		 6220{
6221 RAW_EXTENSION *ext;
6222 int *present;
6223 size_t num = 0, i;
38b051a1 6224 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
193b5d76 6225
38b051a1 6226 if (sc == NULL)
193b5d76 6227 return 0;
38b051a1
TM		 6228
6229 if (sc->clienthello == NULL || out == NULL || outlen == NULL)
6230 return 0;
6231 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6232 ext = sc->clienthello->pre_proc_exts + i;
193b5d76
BK		 6233 if (ext->present)
6234 num++;
6235 }
6fda11ae 6236 if (num == 0) {
6237 *out = NULL;
6238 *outlen = 0;
6239 return 1;
6240 }
cdb10bae 6241 if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL) {
6849b73c 6242 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
193b5d76 6243 return 0;
cdb10bae 6244 }
38b051a1
TM		 6245 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6246 ext = sc->clienthello->pre_proc_exts + i;
193b5d76
BK		 6247 if (ext->present) {
6248 if (ext->received_order >= num)
6249 goto err;
6250 present[ext->received_order] = ext->type;
6251 }
6252 }
6253 *out = present;
6254 *outlen = num;
6255 return 1;
6256 err:
6257 OPENSSL_free(present);
6258 return 0;
6259}
6260
13a53fbf
PL		 6261int SSL_client_hello_get_extension_order(SSL *s, uint16_t *exts, size_t *num_exts)
6262{
6263 RAW_EXTENSION *ext;
6264 size_t num = 0, i;
38b051a1
TM		 6265 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6266
6267 if (sc == NULL)
6268 return 0;
13a53fbf 6269
38b051a1 6270 if (sc->clienthello == NULL || num_exts == NULL)
13a53fbf 6271 return 0;
38b051a1
TM		 6272 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6273 ext = sc->clienthello->pre_proc_exts + i;
13a53fbf
PL		 6274 if (ext->present)
6275 num++;
6276 }
6277 if (num == 0) {
6278 *num_exts = 0;
6279 return 1;
6280 }
6281 if (exts == NULL) {
6282 *num_exts = num;
6283 return 1;
6284 }
6285 if (*num_exts < num)
6286 return 0;
38b051a1
TM		 6287 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6288 ext = sc->clienthello->pre_proc_exts + i;
13a53fbf
PL		 6289 if (ext->present) {
6290 if (ext->received_order >= num)
6291 return 0;
6292 exts[ext->received_order] = ext->type;
6293 }
6294 }
6295 *num_exts = num;
6296 return 1;
6297}
6298
a9c0d8be 6299int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
6b1bb98f
BK		 6300 size_t *outlen)
6301{
6302 size_t i;
6303 RAW_EXTENSION *r;
38b051a1 6304 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6b1bb98f 6305
38b051a1 6306 if (sc == NULL)
6b1bb98f 6307 return 0;
38b051a1
TM		 6308
6309 if (sc->clienthello == NULL)
6310 return 0;
6311 for (i = 0; i < sc->clienthello->pre_proc_exts_len; ++i) {
6312 r = sc->clienthello->pre_proc_exts + i;
6b1bb98f
BK		 6313 if (r->present && r->type == type) {
6314 if (out != NULL)
6315 *out = PACKET_data(&r->data);
6316 if (outlen != NULL)
6317 *outlen = PACKET_remaining(&r->data);
6318 return 1;
6319 }
6320 }
6321 return 0;
6322}
2faa1b48 6323
a58eb06d
TS		 6324int SSL_free_buffers(SSL *ssl)
6325{
38b051a1
TM		 6326 RECORD_LAYER *rl;
6327 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6328
6329 if (sc == NULL)
6330 return 0;
6331
6332 rl = &sc->rlayer;
a58eb06d
TS		 6333
6334 if (RECORD_LAYER_read_pending(rl) || RECORD_LAYER_write_pending(rl))
6335 return 0;
6336
6337 RECORD_LAYER_release(rl);
6338 return 1;
6339}
6340
6341int SSL_alloc_buffers(SSL *ssl)
6342{
38b051a1
TM		 6343 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6344
6345 if (sc == NULL)
6346 return 0;
6347
6348 return ssl3_setup_buffers(sc);
a58eb06d
TS		 6349}
6350
2faa1b48
CB		 6351void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
6352{
6353 ctx->keylog_callback = cb;
6354}
6355
6356SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
6357{
6358 return ctx->keylog_callback;
6359}
6360
6361static int nss_keylog_int(const char *prefix,
38b051a1 6362 SSL_CONNECTION *sc,
2faa1b48
CB		 6363 const uint8_t *parameter_1,
6364 size_t parameter_1_len,
6365 const uint8_t *parameter_2,
6366 size_t parameter_2_len)
6367{
6368 char *out = NULL;
6369 char *cursor = NULL;
6370 size_t out_len = 0;
6371 size_t i;
6372 size_t prefix_len;
38b051a1 6373 SSL_CTX *sctx = SSL_CONNECTION_GET_CTX(sc);
2faa1b48 6374
38b051a1 6375 if (sctx->keylog_callback == NULL)
20870286 6376 return 1;
2faa1b48
CB		 6377
6378 /*
6379 * Our output buffer will contain the following strings, rendered with
6380 * space characters in between, terminated by a NULL character: first the
6381 * prefix, then the first parameter, then the second parameter. The
6382 * meaning of each parameter depends on the specific key material being
6383 * logged. Note that the first and second parameters are encoded in
6384 * hexadecimal, so we need a buffer that is twice their lengths.
6385 */
6386 prefix_len = strlen(prefix);
e931f370 6387 out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
2faa1b48 6388 if ((out = cursor = OPENSSL_malloc(out_len)) == NULL) {
38b051a1 6389 SSLfatal(sc, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
2faa1b48
CB		 6390 return 0;
6391 }
6392
6393 strcpy(cursor, prefix);
6394 cursor += prefix_len;
6395 *cursor++ = ' ';
6396
6397 for (i = 0; i < parameter_1_len; i++) {
6398 sprintf(cursor, "%02x", parameter_1[i]);
6399 cursor += 2;
6400 }
6401 *cursor++ = ' ';
6402
6403 for (i = 0; i < parameter_2_len; i++) {
6404 sprintf(cursor, "%02x", parameter_2[i]);
6405 cursor += 2;
6406 }
6407 *cursor = '\0';
6408
38b051a1 6409 sctx->keylog_callback(SSL_CONNECTION_GET_SSL(sc), (const char *)out);
e931f370 6410 OPENSSL_clear_free(out, out_len);
2faa1b48
CB		 6411 return 1;
6412
6413}
6414
38b051a1 6415int ssl_log_rsa_client_key_exchange(SSL_CONNECTION *sc,
2faa1b48
CB		 6416 const uint8_t *encrypted_premaster,
6417 size_t encrypted_premaster_len,
6418 const uint8_t *premaster,
6419 size_t premaster_len)
6420{
6421 if (encrypted_premaster_len < 8) {
38b051a1 6422 SSLfatal(sc, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
2faa1b48
CB		 6423 return 0;
6424 }
6425
f0deb4d3 6426 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
2faa1b48 6427 return nss_keylog_int("RSA",
38b051a1 6428 sc,
2faa1b48 6429 encrypted_premaster,
f0deb4d3 6430 8,
2faa1b48
CB		 6431 premaster,
6432 premaster_len);
6433}
6434
38b051a1 6435int ssl_log_secret(SSL_CONNECTION *sc,
2c7bd692
CB		 6436 const char *label,
6437 const uint8_t *secret,
6438 size_t secret_len)
2faa1b48 6439{
2c7bd692 6440 return nss_keylog_int(label,
38b051a1
TM		 6441 sc,
6442 sc->s3.client_random,
2c7bd692
CB		 6443 SSL3_RANDOM_SIZE,
6444 secret,
6445 secret_len);
2faa1b48
CB		 6446}
6447
ccb8e6e0
BK		 6448#define SSLV2_CIPHER_LEN 3
6449
38b051a1 6450int ssl_cache_cipherlist(SSL_CONNECTION *s, PACKET *cipher_suites, int sslv2format)
ccb8e6e0 6451{
ccb8e6e0 6452 int n;
ccb8e6e0
BK		 6453
6454 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6455
6456 if (PACKET_remaining(cipher_suites) == 0) {
c48ffbcc 6457 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
90134d98 6458 return 0;
ccb8e6e0
BK		 6459 }
6460
6461 if (PACKET_remaining(cipher_suites) % n != 0) {
c48ffbcc 6462 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
90134d98 6463 return 0;
ccb8e6e0
BK		 6464 }
6465
555cbb32
TS		 6466 OPENSSL_free(s->s3.tmp.ciphers_raw);
6467 s->s3.tmp.ciphers_raw = NULL;
6468 s->s3.tmp.ciphers_rawlen = 0;
ccb8e6e0
BK		 6469
6470 if (sslv2format) {
6471 size_t numciphers = PACKET_remaining(cipher_suites) / n;
6472 PACKET sslv2ciphers = *cipher_suites;
6473 unsigned int leadbyte;
6474 unsigned char *raw;
6475
6476 /*
6477 * We store the raw ciphers list in SSLv3+ format so we need to do some
6478 * preprocessing to convert the list first. If there are any SSLv2 only
6479 * ciphersuites with a non-zero leading byte then we are going to
6480 * slightly over allocate because we won't store those. But that isn't a
6481 * problem.
6482 */
6483 raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
555cbb32 6484 s->s3.tmp.ciphers_raw = raw;
ccb8e6e0 6485 if (raw == NULL) {
c48ffbcc 6486 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
f63a17d6 6487 return 0;
ccb8e6e0 6488 }
555cbb32 6489 for (s->s3.tmp.ciphers_rawlen = 0;
ccb8e6e0
BK		 6490 PACKET_remaining(&sslv2ciphers) > 0;
6491 raw += TLS_CIPHER_LEN) {
6492 if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
6493 || (leadbyte == 0
6494 && !PACKET_copy_bytes(&sslv2ciphers, raw,
6495 TLS_CIPHER_LEN))
6496 || (leadbyte != 0
6497 && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
c48ffbcc 6498 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_PACKET);
555cbb32
TS		 6499 OPENSSL_free(s->s3.tmp.ciphers_raw);
6500 s->s3.tmp.ciphers_raw = NULL;
6501 s->s3.tmp.ciphers_rawlen = 0;
f63a17d6 6502 return 0;
ccb8e6e0
BK		 6503 }
6504 if (leadbyte == 0)
555cbb32 6505 s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN;
ccb8e6e0 6506 }
555cbb32
TS		 6507 } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw,
6508 &s->s3.tmp.ciphers_rawlen)) {
c48ffbcc 6509 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
f63a17d6 6510 return 0;
ccb8e6e0 6511 }
90134d98 6512 return 1;
90134d98
BK		 6513}
6514
6515int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
6516 int isv2format, STACK_OF(SSL_CIPHER) **sk,
6517 STACK_OF(SSL_CIPHER) **scsvs)
6518{
90134d98 6519 PACKET pkt;
38b051a1
TM		 6520 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6521
6522 if (sc == NULL)
6523 return 0;
90134d98
BK		 6524
6525 if (!PACKET_buf_init(&pkt, bytes, len))
6526 return 0;
38b051a1 6527 return ossl_bytes_to_cipher_list(sc, &pkt, sk, scsvs, isv2format, 0);
90134d98
BK		 6528}
6529
38b051a1
TM		 6530int ossl_bytes_to_cipher_list(SSL_CONNECTION *s, PACKET *cipher_suites,
6531 STACK_OF(SSL_CIPHER) **skp,
6532 STACK_OF(SSL_CIPHER) **scsvs_out,
6533 int sslv2format, int fatal)
90134d98
BK		 6534{
6535 const SSL_CIPHER *c;
6536 STACK_OF(SSL_CIPHER) *sk = NULL;
6537 STACK_OF(SSL_CIPHER) *scsvs = NULL;
6538 int n;
6539 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
6540 unsigned char cipher[SSLV2_CIPHER_LEN];
6541
6542 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6543
6544 if (PACKET_remaining(cipher_suites) == 0) {
f63a17d6 6545 if (fatal)
c48ffbcc 6546 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
f63a17d6 6547 else
6849b73c 6548 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHERS_SPECIFIED);
90134d98
BK		 6549 return 0;
6550 }
6551
6552 if (PACKET_remaining(cipher_suites) % n != 0) {
f63a17d6 6553 if (fatal)
c48ffbcc 6554 SSLfatal(s, SSL_AD_DECODE_ERROR,
f63a17d6
MC		 6555 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6556 else
6849b73c 6557 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
90134d98
BK		 6558 return 0;
6559 }
6560
6561 sk = sk_SSL_CIPHER_new_null();
6562 scsvs = sk_SSL_CIPHER_new_null();
6563 if (sk == NULL || scsvs == NULL) {
f63a17d6 6564 if (fatal)
c48ffbcc 6565 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
f63a17d6 6566 else
6849b73c 6567 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
90134d98
BK		 6568 goto err;
6569 }
ccb8e6e0
BK		 6570
6571 while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
6572 /*
6573 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
6574 * first byte set to zero, while true SSLv2 ciphers have a non-zero
6575 * first byte. We don't support any true SSLv2 ciphers, so skip them.
6576 */
6577 if (sslv2format && cipher[0] != '\0')
6578 continue;
6579
ccb8e6e0
BK		 6580 /* For SSLv2-compat, ignore leading 0-byte. */
6581 c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
6582 if (c != NULL) {
90134d98
BK		 6583 if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
6584 (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
f63a17d6 6585 if (fatal)
c48ffbcc 6586 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
f63a17d6 6587 else
6849b73c 6588 ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE);
ccb8e6e0
BK		 6589 goto err;
6590 }
6591 }
6592 }
6593 if (PACKET_remaining(cipher_suites) > 0) {
f63a17d6 6594 if (fatal)
c48ffbcc 6595 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_LENGTH);
f63a17d6 6596 else
6849b73c 6597 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
ccb8e6e0
BK		 6598 goto err;
6599 }
6600
90134d98
BK		 6601 if (skp != NULL)
6602 *skp = sk;
6603 else
6604 sk_SSL_CIPHER_free(sk);
6605 if (scsvs_out != NULL)
6606 *scsvs_out = scsvs;
6607 else
6608 sk_SSL_CIPHER_free(scsvs);
6609 return 1;
ccb8e6e0
BK		 6610 err:
6611 sk_SSL_CIPHER_free(sk);
90134d98
BK		 6612 sk_SSL_CIPHER_free(scsvs);
6613 return 0;
ccb8e6e0 6614}
3fc8d856
MC		 6615
6616int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
6617{
6618 ctx->max_early_data = max_early_data;
6619
6620 return 1;
6621}
6622
46dcb945 6623uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
3fc8d856
MC		 6624{
6625 return ctx->max_early_data;
6626}
6627
6628int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
6629{
38b051a1
TM		 6630 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6631
6632 if (sc == NULL)
6633 return 0;
6634
6635 sc->max_early_data = max_early_data;
3fc8d856
MC		 6636
6637 return 1;
6638}
6639
a8e75d56 6640uint32_t SSL_get_max_early_data(const SSL *s)
3fc8d856 6641{
38b051a1
TM		 6642 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6643
6644 if (sc == NULL)
6645 return 0;
6646
6647 return sc->max_early_data;
3fc8d856 6648}
ae3947de 6649
4e8548e8
MC		 6650int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
6651{
6652 ctx->recv_max_early_data = recv_max_early_data;
6653
6654 return 1;
6655}
6656
6657uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
6658{
6659 return ctx->recv_max_early_data;
6660}
6661
6662int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
6663{
38b051a1
TM		 6664 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6665
6666 if (sc == NULL)
6667 return 0;
6668
6669 sc->recv_max_early_data = recv_max_early_data;
4e8548e8
MC		 6670
6671 return 1;
6672}
6673
6674uint32_t SSL_get_recv_max_early_data(const SSL *s)
6675{
38b051a1
TM		 6676 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6677
6678 if (sc == NULL)
6679 return 0;
6680
6681 return sc->recv_max_early_data;
4e8548e8
MC		 6682}
6683
38b051a1 6684__owur unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION *sc)
cf72c757
F		 6685{
6686 /* Return any active Max Fragment Len extension */
38b051a1
TM		 6687 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session))
6688 return GET_MAX_FRAGMENT_LENGTH(sc->session);
cf72c757
F		 6689
6690 /* return current SSL connection setting */
38b051a1 6691 return sc->max_send_fragment;
cf72c757
F		 6692}
6693
38b051a1 6694__owur unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION *sc)
cf72c757
F		 6695{
6696 /* Return a value regarding an active Max Fragment Len extension */
38b051a1
TM		 6697 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session)
6698 && sc->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(sc->session))
6699 return GET_MAX_FRAGMENT_LENGTH(sc->session);
cf72c757
F		 6700
6701 /* else limit |split_send_fragment| to current |max_send_fragment| */
38b051a1
TM		 6702 if (sc->split_send_fragment > sc->max_send_fragment)
6703 return sc->max_send_fragment;
cf72c757
F		 6704
6705 /* return current SSL connection setting */
38b051a1 6706 return sc->split_send_fragment;
cf72c757 6707}
042c5753
MC		 6708
6709int SSL_stateless(SSL *s)
6710{
6711 int ret;
38b051a1
TM		 6712 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6713
6714 /* TODO(QUIC): This will need further work. */
6715 if (sc == NULL)
6716 return 0;
042c5753
MC		 6717
6718 /* Ensure there is no state left over from a previous invocation */
6719 if (!SSL_clear(s))
d6bb50a5 6720 return 0;
042c5753
MC		 6721
6722 ERR_clear_error();
6723
38b051a1 6724 sc->s3.flags |= TLS1_FLAGS_STATELESS;
042c5753 6725 ret = SSL_accept(s);
38b051a1 6726 sc->s3.flags &= ~TLS1_FLAGS_STATELESS;
042c5753 6727
38b051a1 6728 if (ret > 0 && sc->ext.cookieok)
c36001c3
MC		 6729 return 1;
6730
38b051a1 6731 if (sc->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(sc))
e440f513
MC		 6732 return 0;
6733
6734 return -1;
042c5753 6735}
9d75dce3 6736
e97be718
MC		 6737void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
6738{
6739 ctx->pha_enabled = val;
6740}
6741
32097b33 6742void SSL_set_post_handshake_auth(SSL *ssl, int val)
9d75dce3 6743{
38b051a1
TM		 6744 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6745
6746 if (sc == NULL)
6747 return;
6748
6749 sc->pha_enabled = val;
9d75dce3
TS		 6750}
6751
6752int SSL_verify_client_post_handshake(SSL *ssl)
6753{
38b051a1
TM		 6754 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6755
6756 if (sc == NULL)
6757 return 0;
6758
6759 if (!SSL_CONNECTION_IS_TLS13(sc)) {
6849b73c 6760 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
9d75dce3
TS		 6761 return 0;
6762 }
38b051a1 6763 if (!sc->server) {
6849b73c 6764 ERR_raise(ERR_LIB_SSL, SSL_R_NOT_SERVER);
9d75dce3
TS		 6765 return 0;
6766 }
6767
6768 if (!SSL_is_init_finished(ssl)) {
6849b73c 6769 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
9d75dce3
TS		 6770 return 0;
6771 }
6772
38b051a1 6773 switch (sc->post_handshake_auth) {
9d75dce3 6774 case SSL_PHA_NONE:
6849b73c 6775 ERR_raise(ERR_LIB_SSL, SSL_R_EXTENSION_NOT_RECEIVED);
9d75dce3
TS		 6776 return 0;
6777 default:
6778 case SSL_PHA_EXT_SENT:
6849b73c 6779 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
9d75dce3
TS		 6780 return 0;
6781 case SSL_PHA_EXT_RECEIVED:
6782 break;
6783 case SSL_PHA_REQUEST_PENDING:
6849b73c 6784 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_PENDING);
9d75dce3
TS		 6785 return 0;
6786 case SSL_PHA_REQUESTED:
6849b73c 6787 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_SENT);
9d75dce3
TS		 6788 return 0;
6789 }
6790
38b051a1 6791 sc->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
9d75dce3
TS		 6792
6793 /* checks verify_mode and algorithm_auth */
38b051a1
TM		 6794 if (!send_certificate_request(sc)) {
6795 sc->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
6849b73c 6796 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CONFIG);
9d75dce3
TS		 6797 return 0;
6798 }
6799
38b051a1 6800 ossl_statem_set_in_init(sc, 1);
9d75dce3
TS		 6801 return 1;
6802}
df0fed9a
TS		 6803
6804int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
6805 SSL_CTX_generate_session_ticket_fn gen_cb,
6806 SSL_CTX_decrypt_session_ticket_fn dec_cb,
6807 void *arg)
6808{
6809 ctx->generate_ticket_cb = gen_cb;
6810 ctx->decrypt_ticket_cb = dec_cb;
6811 ctx->ticket_cb_data = arg;
6812 return 1;
6813}
c9598459
MC		 6814
6815void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
6816 SSL_allow_early_data_cb_fn cb,
6817 void *arg)
6818{
6819 ctx->allow_early_data_cb = cb;
6820 ctx->allow_early_data_cb_data = arg;
6821}
6822
6823void SSL_set_allow_early_data_cb(SSL *s,
6824 SSL_allow_early_data_cb_fn cb,
6825 void *arg)
6826{
38b051a1
TM		 6827 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6828
6829 if (sc == NULL)
6830 return;
6831
6832 sc->allow_early_data_cb = cb;
6833 sc->allow_early_data_cb_data = arg;
c9598459 6834}
c8f6c28a 6835
b4250010 6836const EVP_CIPHER *ssl_evp_cipher_fetch(OSSL_LIB_CTX *libctx,
c8f6c28a
MC		 6837 int nid,
6838 const char *properties)
6839{
301fcb28 6840 const EVP_CIPHER *ciph;
5fcb97c6 6841
301fcb28
MC		 6842 ciph = tls_get_cipher_from_engine(nid);
6843 if (ciph != NULL)
6844 return ciph;
0618b62c 6845
c8f6c28a 6846 /*
301fcb28
MC		 6847 * If there is no engine cipher then we do an explicit fetch. This may fail
6848 * and that could be ok
c8f6c28a 6849 */
5fcb97c6
MC		 6850 ERR_set_mark();
6851 ciph = EVP_CIPHER_fetch(libctx, OBJ_nid2sn(nid), properties);
6852 ERR_pop_to_mark();
6853 return ciph;
c8f6c28a
MC		 6854}
6855
6856
6857int ssl_evp_cipher_up_ref(const EVP_CIPHER *cipher)
6858{
6859 /* Don't up-ref an implicit EVP_CIPHER */
ed576acd 6860 if (EVP_CIPHER_get0_provider(cipher) == NULL)
c8f6c28a
MC		 6861 return 1;
6862
6863 /*
6864 * The cipher was explicitly fetched and therefore it is safe to cast
6865 * away the const
6866 */
6867 return EVP_CIPHER_up_ref((EVP_CIPHER *)cipher);
6868}
6869
6870void ssl_evp_cipher_free(const EVP_CIPHER *cipher)
6871{
6872 if (cipher == NULL)
6873 return;
6874
ed576acd 6875 if (EVP_CIPHER_get0_provider(cipher) != NULL) {
c8f6c28a
MC		 6876 /*
6877 * The cipher was explicitly fetched and therefore it is safe to cast
6878 * away the const
6879 */
6880 EVP_CIPHER_free((EVP_CIPHER *)cipher);
6881 }
6882}
6883
b4250010 6884const EVP_MD *ssl_evp_md_fetch(OSSL_LIB_CTX *libctx,
c8f6c28a
MC		 6885 int nid,
6886 const char *properties)
6887{
301fcb28 6888 const EVP_MD *md;
5fcb97c6 6889
301fcb28
MC		 6890 md = tls_get_digest_from_engine(nid);
6891 if (md != NULL)
6892 return md;
c8f6c28a
MC		 6893
6894 /* Otherwise we do an explicit fetch */
5fcb97c6
MC		 6895 ERR_set_mark();
6896 md = EVP_MD_fetch(libctx, OBJ_nid2sn(nid), properties);
6897 ERR_pop_to_mark();
6898 return md;
c8f6c28a
MC		 6899}
6900
6901int ssl_evp_md_up_ref(const EVP_MD *md)
6902{
6903 /* Don't up-ref an implicit EVP_MD */
ed576acd 6904 if (EVP_MD_get0_provider(md) == NULL)
c8f6c28a
MC		 6905 return 1;
6906
6907 /*
6908 * The digest was explicitly fetched and therefore it is safe to cast
6909 * away the const
6910 */
6911 return EVP_MD_up_ref((EVP_MD *)md);
6912}
6913
6914void ssl_evp_md_free(const EVP_MD *md)
6915{
6916 if (md == NULL)
6917 return;
6918
ed576acd 6919 if (EVP_MD_get0_provider(md) != NULL) {
c8f6c28a
MC		 6920 /*
6921 * The digest was explicitly fetched and therefore it is safe to cast
6922 * away the const
6923 */
6924 EVP_MD_free((EVP_MD *)md);
6925 }
6926}
163f6dc1
MC		 6927
6928int SSL_set0_tmp_dh_pkey(SSL *s, EVP_PKEY *dhpkey)
6929{
38b051a1
TM		 6930 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6931
6932 if (sc == NULL)
6933 return 0;
6934
6935 if (!ssl_security(sc, SSL_SECOP_TMP_DH,
ed576acd 6936 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
276d6c68 6937 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
163f6dc1
MC		 6938 return 0;
6939 }
38b051a1
TM		 6940 EVP_PKEY_free(sc->cert->dh_tmp);
6941 sc->cert->dh_tmp = dhpkey;
163f6dc1
MC		 6942 return 1;
6943}
6944
6945int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX *ctx, EVP_PKEY *dhpkey)
6946{
6947 if (!ssl_ctx_security(ctx, SSL_SECOP_TMP_DH,
ed576acd 6948 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
276d6c68 6949 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
163f6dc1
MC		 6950 return 0;
6951 }
6952 EVP_PKEY_free(ctx->cert->dh_tmp);
6953 ctx->cert->dh_tmp = dhpkey;
6954 return 1;
6955}
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