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QUIC SSL: Prohibit readahead-related functions
[thirdparty/openssl.git] / ssl / ssl_lib.c
CommitLineData
0f113f3e 1/*
3c95ef22 2 * Copyright 1995-2023 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"
f2a6f838 26#include "internal/nelem.h"
cd420b0b 27#include "internal/refcount.h"
50ec7505 28#include "internal/ktls.h"
03bacce8 29#include "quic/quic_local.h"
0f113f3e 30
38b051a1 31static int ssl_undefined_function_3(SSL_CONNECTION *sc, unsigned char *r,
fce78bd4
BE		 32 unsigned char *s, size_t t, size_t *u)
33{
38b051a1 34 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
fce78bd4
BE		 35}
36
38b051a1 37static int ssl_undefined_function_4(SSL_CONNECTION *sc, int r)
fce78bd4 38{
38b051a1 39 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
fce78bd4
BE		 40}
41
38b051a1
TM		 42static size_t ssl_undefined_function_5(SSL_CONNECTION *sc, const char *r,
43 size_t s, unsigned char *t)
fce78bd4 44{
38b051a1 45 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
fce78bd4
BE		 46}
47
48static int ssl_undefined_function_6(int r)
49{
fce78bd4
BE		 50 return ssl_undefined_function(NULL);
51}
52
38b051a1
TM		 53static int ssl_undefined_function_7(SSL_CONNECTION *sc, unsigned char *r,
54 size_t s, const char *t, size_t u,
fce78bd4
BE		 55 const unsigned char *v, size_t w, int x)
56{
38b051a1
TM		 57 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
58}
59
60static int ssl_undefined_function_8(SSL_CONNECTION *sc)
61{
62 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
fce78bd4
BE		 63}
64
0f113f3e 65SSL3_ENC_METHOD ssl3_undef_enc_method = {
38b051a1 66 ssl_undefined_function_8,
fce78bd4
BE		 67 ssl_undefined_function_3,
68 ssl_undefined_function_4,
69 ssl_undefined_function_5,
0f113f3e
MC		 70 NULL, /* client_finished_label */
71 0, /* client_finished_label_len */
72 NULL, /* server_finished_label */
73 0, /* server_finished_label_len */
fce78bd4
BE		 74 ssl_undefined_function_6,
75 ssl_undefined_function_7,
0f113f3e 76};
d02b48c6 77
07bbc92c
MC		 78struct ssl_async_args {
79 SSL *s;
80 void *buf;
348240c6 81 size_t num;
a230b26e 82 enum { READFUNC, WRITEFUNC, OTHERFUNC } type;
add2f5ca 83 union {
eda75751 84 int (*func_read) (SSL *, void *, size_t, size_t *);
7ee8627f 85 int (*func_write) (SSL *, const void *, size_t, size_t *);
a230b26e 86 int (*func_other) (SSL *);
add2f5ca 87 } f;
07bbc92c
MC		 88};
89
919ba009
VD		 90static const struct {
91 uint8_t mtype;
92 uint8_t ord;
a230b26e 93 int nid;
919ba009 94} dane_mds[] = {
a230b26e
EK		 95 {
96 DANETLS_MATCHING_FULL, 0, NID_undef
97 },
98 {
99 DANETLS_MATCHING_2256, 1, NID_sha256
100 },
101 {
102 DANETLS_MATCHING_2512, 2, NID_sha512
103 },
919ba009
VD		 104};
105
106static int dane_ctx_enable(struct dane_ctx_st *dctx)
107{
108 const EVP_MD **mdevp;
109 uint8_t *mdord;
110 uint8_t mdmax = DANETLS_MATCHING_LAST;
a230b26e 111 int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */
919ba009
VD		 112 size_t i;
113
5ae4ceb9
VD		 114 if (dctx->mdevp != NULL)
115 return 1;
116
919ba009
VD		 117 mdevp = OPENSSL_zalloc(n * sizeof(*mdevp));
118 mdord = OPENSSL_zalloc(n * sizeof(*mdord));
119
120 if (mdord == NULL || mdevp == NULL) {
b3bd3d5a 121 OPENSSL_free(mdord);
919ba009 122 OPENSSL_free(mdevp);
919ba009
VD		 123 return 0;
124 }
125
126 /* Install default entries */
127 for (i = 0; i < OSSL_NELEM(dane_mds); ++i) {
128 const EVP_MD *md;
129
130 if (dane_mds[i].nid == NID_undef ||
131 (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL)
132 continue;
133 mdevp[dane_mds[i].mtype] = md;
134 mdord[dane_mds[i].mtype] = dane_mds[i].ord;
135 }
136
137 dctx->mdevp = mdevp;
138 dctx->mdord = mdord;
139 dctx->mdmax = mdmax;
140
141 return 1;
142}
143
144static void dane_ctx_final(struct dane_ctx_st *dctx)
145{
146 OPENSSL_free(dctx->mdevp);
147 dctx->mdevp = NULL;
148
149 OPENSSL_free(dctx->mdord);
150 dctx->mdord = NULL;
151 dctx->mdmax = 0;
152}
153
154static void tlsa_free(danetls_record *t)
155{
156 if (t == NULL)
157 return;
158 OPENSSL_free(t->data);
159 EVP_PKEY_free(t->spki);
160 OPENSSL_free(t);
161}
162
b9aec69a 163static void dane_final(SSL_DANE *dane)
919ba009
VD		 164{
165 sk_danetls_record_pop_free(dane->trecs, tlsa_free);
166 dane->trecs = NULL;
167
79b2a2f2 168 OSSL_STACK_OF_X509_free(dane->certs);
919ba009
VD		 169 dane->certs = NULL;
170
171 X509_free(dane->mcert);
172 dane->mcert = NULL;
173 dane->mtlsa = NULL;
174 dane->mdpth = -1;
175 dane->pdpth = -1;
176}
177
178/*
179 * dane_copy - Copy dane configuration, sans verification state.
180 */
38b051a1 181static int ssl_dane_dup(SSL_CONNECTION *to, SSL_CONNECTION *from)
919ba009
VD		 182{
183 int num;
184 int i;
185
186 if (!DANETLS_ENABLED(&from->dane))
187 return 1;
188
e431363f 189 num = sk_danetls_record_num(from->dane.trecs);
919ba009 190 dane_final(&to->dane);
5ae4ceb9 191 to->dane.flags = from->dane.flags;
38b051a1 192 to->dane.dctx = &SSL_CONNECTION_GET_CTX(to)->dane;
7a908204 193 to->dane.trecs = sk_danetls_record_new_reserve(NULL, num);
9f6b22b8
VD		 194
195 if (to->dane.trecs == NULL) {
e077455e 196 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
9f6b22b8
VD		 197 return 0;
198 }
919ba009 199
919ba009
VD		 200 for (i = 0; i < num; ++i) {
201 danetls_record *t = sk_danetls_record_value(from->dane.trecs, i);
9f6b22b8 202
38b051a1
TM		 203 if (SSL_dane_tlsa_add(SSL_CONNECTION_GET_SSL(to), t->usage,
204 t->selector, t->mtype, t->data, t->dlen) <= 0)
919ba009
VD		 205 return 0;
206 }
207 return 1;
208}
209
a230b26e
EK		 210static int dane_mtype_set(struct dane_ctx_st *dctx,
211 const EVP_MD *md, uint8_t mtype, uint8_t ord)
919ba009
VD		 212{
213 int i;
214
215 if (mtype == DANETLS_MATCHING_FULL && md != NULL) {
6849b73c 216 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL);
919ba009
VD		 217 return 0;
218 }
219
220 if (mtype > dctx->mdmax) {
221 const EVP_MD **mdevp;
222 uint8_t *mdord;
a230b26e 223 int n = ((int)mtype) + 1;
919ba009
VD		 224
225 mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp));
e077455e 226 if (mdevp == NULL)
919ba009 227 return -1;
919ba009
VD		 228 dctx->mdevp = mdevp;
229
230 mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord));
e077455e 231 if (mdord == NULL)
919ba009 232 return -1;
919ba009
VD		 233 dctx->mdord = mdord;
234
235 /* Zero-fill any gaps */
a230b26e 236 for (i = dctx->mdmax + 1; i < mtype; ++i) {
919ba009
VD		 237 mdevp[i] = NULL;
238 mdord[i] = 0;
239 }
240
241 dctx->mdmax = mtype;
242 }
243
244 dctx->mdevp[mtype] = md;
245 /* Coerce ordinal of disabled matching types to 0 */
246 dctx->mdord[mtype] = (md == NULL) ? 0 : ord;
247
248 return 1;
249}
250
b9aec69a 251static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype)
919ba009
VD		 252{
253 if (mtype > dane->dctx->mdmax)
254 return NULL;
255 return dane->dctx->mdevp[mtype];
256}
257
a230b26e
EK		 258static int dane_tlsa_add(SSL_DANE *dane,
259 uint8_t usage,
260 uint8_t selector,
6d4313f0 261 uint8_t mtype, const unsigned char *data, size_t dlen)
919ba009
VD		 262{
263 danetls_record *t;
264 const EVP_MD *md = NULL;
265 int ilen = (int)dlen;
266 int i;
9f6b22b8 267 int num;
919ba009
VD		 268
269 if (dane->trecs == NULL) {
6849b73c 270 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_NOT_ENABLED);
919ba009
VD		 271 return -1;
272 }
273
274 if (ilen < 0 || dlen != (size_t)ilen) {
6849b73c 275 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DATA_LENGTH);
919ba009
VD		 276 return 0;
277 }
278
279 if (usage > DANETLS_USAGE_LAST) {
6849b73c 280 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE);
919ba009
VD		 281 return 0;
282 }
283
284 if (selector > DANETLS_SELECTOR_LAST) {
6849b73c 285 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_SELECTOR);
919ba009
VD		 286 return 0;
287 }
288
289 if (mtype != DANETLS_MATCHING_FULL) {
290 md = tlsa_md_get(dane, mtype);
291 if (md == NULL) {
6849b73c 292 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE);
919ba009
VD		 293 return 0;
294 }
295 }
296
ed576acd 297 if (md != NULL && dlen != (size_t)EVP_MD_get_size(md)) {
6849b73c 298 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH);
919ba009
VD		 299 return 0;
300 }
301 if (!data) {
6849b73c 302 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_NULL_DATA);
919ba009
VD		 303 return 0;
304 }
305
e077455e 306 if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL)
919ba009 307 return -1;
919ba009
VD		 308
309 t->usage = usage;
310 t->selector = selector;
311 t->mtype = mtype;
348240c6 312 t->data = OPENSSL_malloc(dlen);
919ba009
VD		 313 if (t->data == NULL) {
314 tlsa_free(t);
919ba009
VD		 315 return -1;
316 }
348240c6
MC		 317 memcpy(t->data, data, dlen);
318 t->dlen = dlen;
919ba009
VD		 319
320 /* Validate and cache full certificate or public key */
321 if (mtype == DANETLS_MATCHING_FULL) {
322 const unsigned char *p = data;
323 X509 *cert = NULL;
324 EVP_PKEY *pkey = NULL;
325
326 switch (selector) {
327 case DANETLS_SELECTOR_CERT:
348240c6 328 if (!d2i_X509(&cert, &p, ilen) || p < data ||
919ba009
VD		 329 dlen != (size_t)(p - data)) {
330 tlsa_free(t);
6849b73c 331 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
919ba009
VD		 332 return 0;
333 }
334 if (X509_get0_pubkey(cert) == NULL) {
335 tlsa_free(t);
6849b73c 336 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
919ba009
VD		 337 return 0;
338 }
339
340 if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
341 X509_free(cert);
342 break;
343 }
344
345 /*
346 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
347 * records that contain full certificates of trust-anchors that are
348 * not present in the wire chain. For usage PKIX-TA(0), we augment
349 * the chain with untrusted Full(0) certificates from DNS, in case
350 * they are missing from the chain.
351 */
352 if ((dane->certs == NULL &&
353 (dane->certs = sk_X509_new_null()) == NULL) ||
354 !sk_X509_push(dane->certs, cert)) {
e077455e 355 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
919ba009
VD		 356 X509_free(cert);
357 tlsa_free(t);
358 return -1;
359 }
360 break;
361
362 case DANETLS_SELECTOR_SPKI:
348240c6 363 if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data ||
919ba009
VD		 364 dlen != (size_t)(p - data)) {
365 tlsa_free(t);
6849b73c 366 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
919ba009
VD		 367 return 0;
368 }
369
370 /*
371 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
372 * records that contain full bare keys of trust-anchors that are
373 * not present in the wire chain.
374 */
375 if (usage == DANETLS_USAGE_DANE_TA)
376 t->spki = pkey;
377 else
378 EVP_PKEY_free(pkey);
379 break;
380 }
381 }
382
383 /*-
384 * Find the right insertion point for the new record.
385 *
386 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
387 * they can be processed first, as they require no chain building, and no
388 * expiration or hostname checks. Because DANE-EE(3) is numerically
389 * largest, this is accomplished via descending sort by "usage".
390 *
391 * We also sort in descending order by matching ordinal to simplify
392 * the implementation of digest agility in the verification code.
393 *
394 * The choice of order for the selector is not significant, so we
395 * use the same descending order for consistency.
396 */
9f6b22b8
VD		 397 num = sk_danetls_record_num(dane->trecs);
398 for (i = 0; i < num; ++i) {
919ba009 399 danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
9f6b22b8 400
919ba009
VD		 401 if (rec->usage > usage)
402 continue;
403 if (rec->usage < usage)
404 break;
405 if (rec->selector > selector)
406 continue;
407 if (rec->selector < selector)
408 break;
409 if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
410 continue;
411 break;
412 }
413
414 if (!sk_danetls_record_insert(dane->trecs, t, i)) {
415 tlsa_free(t);
e077455e 416 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
919ba009
VD		 417 return -1;
418 }
419 dane->umask |= DANETLS_USAGE_BIT(usage);
420
421 return 1;
422}
423
c8feba72
BK		 424/*
425 * Return 0 if there is only one version configured and it was disabled
426 * at configure time. Return 1 otherwise.
427 */
428static int ssl_check_allowed_versions(int min_version, int max_version)
429{
430 int minisdtls = 0, maxisdtls = 0;
431
432 /* Figure out if we're doing DTLS versions or TLS versions */
433 if (min_version == DTLS1_BAD_VER
434 || min_version >> 8 == DTLS1_VERSION_MAJOR)
435 minisdtls = 1;
436 if (max_version == DTLS1_BAD_VER
437 || max_version >> 8 == DTLS1_VERSION_MAJOR)
438 maxisdtls = 1;
439 /* A wildcard version of 0 could be DTLS or TLS. */
440 if ((minisdtls && !maxisdtls && max_version != 0)
441 || (maxisdtls && !minisdtls && min_version != 0)) {
442 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
443 return 0;
444 }
445
446 if (minisdtls || maxisdtls) {
447 /* Do DTLS version checks. */
448 if (min_version == 0)
449 /* Ignore DTLS1_BAD_VER */
450 min_version = DTLS1_VERSION;
451 if (max_version == 0)
452 max_version = DTLS1_2_VERSION;
453#ifdef OPENSSL_NO_DTLS1_2
454 if (max_version == DTLS1_2_VERSION)
455 max_version = DTLS1_VERSION;
456#endif
457#ifdef OPENSSL_NO_DTLS1
458 if (min_version == DTLS1_VERSION)
459 min_version = DTLS1_2_VERSION;
460#endif
79b4444d
DMSP		 461 /* Done massaging versions; do the check. */
462 if (0
c8feba72
BK		 463#ifdef OPENSSL_NO_DTLS1
464 || (DTLS_VERSION_GE(min_version, DTLS1_VERSION)
465 && DTLS_VERSION_GE(DTLS1_VERSION, max_version))
466#endif
467#ifdef OPENSSL_NO_DTLS1_2
468 || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION)
469 && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version))
470#endif
471 )
472 return 0;
473 } else {
474 /* Regular TLS version checks. */
79b4444d
DMSP		 475 if (min_version == 0)
476 min_version = SSL3_VERSION;
477 if (max_version == 0)
478 max_version = TLS1_3_VERSION;
c8feba72 479#ifdef OPENSSL_NO_TLS1_3
79b4444d
DMSP		 480 if (max_version == TLS1_3_VERSION)
481 max_version = TLS1_2_VERSION;
c8feba72
BK		 482#endif
483#ifdef OPENSSL_NO_TLS1_2
79b4444d
DMSP		 484 if (max_version == TLS1_2_VERSION)
485 max_version = TLS1_1_VERSION;
c8feba72
BK		 486#endif
487#ifdef OPENSSL_NO_TLS1_1
79b4444d
DMSP		 488 if (max_version == TLS1_1_VERSION)
489 max_version = TLS1_VERSION;
c8feba72
BK		 490#endif
491#ifdef OPENSSL_NO_TLS1
79b4444d
DMSP		 492 if (max_version == TLS1_VERSION)
493 max_version = SSL3_VERSION;
c8feba72
BK		 494#endif
495#ifdef OPENSSL_NO_SSL3
79b4444d
DMSP		 496 if (min_version == SSL3_VERSION)
497 min_version = TLS1_VERSION;
c8feba72
BK		 498#endif
499#ifdef OPENSSL_NO_TLS1
79b4444d
DMSP		 500 if (min_version == TLS1_VERSION)
501 min_version = TLS1_1_VERSION;
c8feba72
BK		 502#endif
503#ifdef OPENSSL_NO_TLS1_1
79b4444d
DMSP		 504 if (min_version == TLS1_1_VERSION)
505 min_version = TLS1_2_VERSION;
c8feba72
BK		 506#endif
507#ifdef OPENSSL_NO_TLS1_2
79b4444d
DMSP		 508 if (min_version == TLS1_2_VERSION)
509 min_version = TLS1_3_VERSION;
c8feba72 510#endif
79b4444d
DMSP		 511 /* Done massaging versions; do the check. */
512 if (0
c8feba72
BK		 513#ifdef OPENSSL_NO_SSL3
514 || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version)
515#endif
516#ifdef OPENSSL_NO_TLS1
517 || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version)
518#endif
519#ifdef OPENSSL_NO_TLS1_1
520 || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version)
521#endif
522#ifdef OPENSSL_NO_TLS1_2
523 || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version)
524#endif
525#ifdef OPENSSL_NO_TLS1_3
526 || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version)
527#endif
528 )
529 return 0;
530 }
531 return 1;
532}
533
08073700
RB		 534#if defined(__TANDEM) && defined(OPENSSL_VPROC)
535/*
536 * Define a VPROC function for HP NonStop build ssl library.
537 * This is used by platform version identification tools.
538 * Do not inline this procedure or make it static.
539 */
540# define OPENSSL_VPROC_STRING_(x) x##_SSL
541# define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
542# define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
543void OPENSSL_VPROC_FUNC(void) {}
544#endif
545
6d814fd6 546static int clear_record_layer(SSL_CONNECTION *s)
d31fb0b5 547{
6d814fd6
MC		 548 int ret;
549
550 /* We try and reset both record layers even if one fails */
551
552 ret = ssl_set_new_record_layer(s,
553 SSL_CONNECTION_IS_DTLS(s) ? DTLS_ANY_VERSION
554 : TLS_ANY_VERSION,
555 OSSL_RECORD_DIRECTION_READ,
3f9175c7 556 OSSL_RECORD_PROTECTION_LEVEL_NONE, NULL, 0,
6d814fd6 557 NULL, 0, NULL, 0, NULL, 0, NULL, 0,
3f9175c7 558 NID_undef, NULL, NULL, NULL);
6d814fd6
MC		 559
560 ret &= ssl_set_new_record_layer(s,
561 SSL_CONNECTION_IS_DTLS(s) ? DTLS_ANY_VERSION
562 : TLS_ANY_VERSION,
563 OSSL_RECORD_DIRECTION_WRITE,
3f9175c7 564 OSSL_RECORD_PROTECTION_LEVEL_NONE, NULL, 0,
6d814fd6 565 NULL, 0, NULL, 0, NULL, 0, NULL, 0,
3f9175c7
MC		 566 NID_undef, NULL, NULL, NULL);
567
6d814fd6
MC		 568 /* SSLfatal already called in the event of failure */
569 return ret;
d31fb0b5
RS		 570}
571
4f43d0e7 572int SSL_clear(SSL *s)
0f113f3e 573{
0f113f3e 574 if (s->method == NULL) {
6849b73c 575 ERR_raise(ERR_LIB_SSL, SSL_R_NO_METHOD_SPECIFIED);
a89325e4 576 return 0;
0f113f3e 577 }
d02b48c6 578
38b051a1
TM		 579 return s->method->ssl_reset(s);
580}
581
582int ossl_ssl_connection_reset(SSL *s)
583{
584 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
585
586 if (sc == NULL)
587 return 0;
588
589 if (ssl_clear_bad_session(sc)) {
590 SSL_SESSION_free(sc->session);
591 sc->session = NULL;
0f113f3e 592 }
38b051a1
TM		 593 SSL_SESSION_free(sc->psksession);
594 sc->psksession = NULL;
595 OPENSSL_free(sc->psksession_id);
596 sc->psksession_id = NULL;
597 sc->psksession_id_len = 0;
598 sc->hello_retry_request = 0;
599 sc->sent_tickets = 0;
d62bfb39 600
38b051a1
TM		 601 sc->error = 0;
602 sc->hit = 0;
603 sc->shutdown = 0;
d02b48c6 604
38b051a1 605 if (sc->renegotiate) {
6849b73c 606 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
0f113f3e
MC		 607 return 0;
608 }
d02b48c6 609
38b051a1 610 ossl_statem_clear(sc);
413c4f45 611
38b051a1
TM		 612 /* TODO(QUIC): Version handling not yet clear */
613 sc->version = s->method->version;
614 sc->client_version = sc->version;
615 sc->rwstate = SSL_NOTHING;
d02b48c6 616
38b051a1
TM		 617 BUF_MEM_free(sc->init_buf);
618 sc->init_buf = NULL;
38b051a1 619 sc->first_packet = 0;
d02b48c6 620
38b051a1 621 sc->key_update = SSL_KEY_UPDATE_NONE;
b67cb09f
TS		 622 memset(sc->ext.compress_certificate_from_peer, 0,
623 sizeof(sc->ext.compress_certificate_from_peer));
624 sc->ext.compress_certificate_sent = 0;
44c04a2e 625
38b051a1
TM		 626 EVP_MD_CTX_free(sc->pha_dgst);
627 sc->pha_dgst = NULL;
88834998 628
919ba009 629 /* Reset DANE verification result state */
38b051a1
TM		 630 sc->dane.mdpth = -1;
631 sc->dane.pdpth = -1;
632 X509_free(sc->dane.mcert);
633 sc->dane.mcert = NULL;
634 sc->dane.mtlsa = NULL;
919ba009
VD		 635
636 /* Clear the verification result peername */
38b051a1 637 X509_VERIFY_PARAM_move_peername(sc->param, NULL);
919ba009 638
29948ac8 639 /* Clear any shared connection state */
38b051a1
TM		 640 OPENSSL_free(sc->shared_sigalgs);
641 sc->shared_sigalgs = NULL;
642 sc->shared_sigalgslen = 0;
29948ac8 643
0f113f3e
MC		 644 /*
645 * Check to see if we were changed into a different method, if so, revert
24252537 646 * back.
0f113f3e 647 */
a7f41885 648 if (s->method != s->defltmeth) {
38b051a1 649 s->method->ssl_deinit(s);
a7f41885 650 s->method = s->defltmeth;
38b051a1 651 if (!s->method->ssl_init(s))
a89325e4 652 return 0;
b77f3ed1
MC		 653 } else {
654 if (!s->method->ssl_clear(s))
655 return 0;
656 }
33d23b87 657
38b051a1 658 RECORD_LAYER_clear(&sc->rlayer);
cffafb5f
MC		 659 BIO_free(sc->rlayer.rrlnext);
660 sc->rlayer.rrlnext = NULL;
33d23b87 661
6d814fd6 662 if (!clear_record_layer(sc))
2b71b042 663 return 0;
aedbb71b 664
a89325e4 665 return 1;
0f113f3e 666}
d02b48c6 667
dd0164e7 668#ifndef OPENSSL_NO_DEPRECATED_3_0
4f43d0e7 669/** Used to change an SSL_CTXs default SSL method type */
0f113f3e
MC		 670int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
671{
672 STACK_OF(SSL_CIPHER) *sk;
673
674 ctx->method = meth;
675
5d120511 676 if (!SSL_CTX_set_ciphersuites(ctx, OSSL_default_ciphersuites())) {
6849b73c 677 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
2340ed27
BK		 678 return 0;
679 }
a68eee67 680 sk = ssl_create_cipher_list(ctx,
f865b081
MC		 681 ctx->tls13_ciphersuites,
682 &(ctx->cipher_list),
0f113f3e 683 &(ctx->cipher_list_by_id),
5d120511 684 OSSL_default_cipher_list(), ctx->cert);
0f113f3e 685 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
6849b73c 686 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
26a7d938 687 return 0;
0f113f3e 688 }
208fb891 689 return 1;
0f113f3e 690}
dd0164e7 691#endif
d02b48c6 692
4f43d0e7 693SSL *SSL_new(SSL_CTX *ctx)
0f113f3e 694{
0f113f3e 695 if (ctx == NULL) {
6849b73c 696 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_CTX);
26a7d938 697 return NULL;
0f113f3e
MC		 698 }
699 if (ctx->method == NULL) {
6849b73c 700 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
26a7d938 701 return NULL;
0f113f3e 702 }
38b051a1
TM		 703 return ctx->method->ssl_new(ctx);
704}
705
a7f41885 706int ossl_ssl_init(SSL *ssl, SSL_CTX *ctx, const SSL_METHOD *method, int type)
38b051a1
TM		 707{
708 ssl->type = type;
709
38b051a1
TM		 710 ssl->lock = CRYPTO_THREAD_lock_new();
711 if (ssl->lock == NULL)
712 return 0;
713
43a07d6d
P		 714 if (!CRYPTO_NEW_REF(&ssl->references, 1)) {
715 CRYPTO_THREAD_lock_free(ssl->lock);
716 return 0;
717 }
718
c10ded8c
TS		 719 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, ssl, &ssl->ex_data)) {
720 CRYPTO_THREAD_lock_free(ssl->lock);
43a07d6d 721 CRYPTO_FREE_REF(&ssl->references);
c10ded8c
TS		 722 ssl->lock = NULL;
723 return 0;
724 }
725
38b051a1
TM		 726 SSL_CTX_up_ref(ctx);
727 ssl->ctx = ctx;
728
a7f41885 729 ssl->defltmeth = ssl->method = method;
38b051a1 730
38b051a1
TM		 731 return 1;
732}
733
a7f41885 734SSL *ossl_ssl_connection_new_int(SSL_CTX *ctx, const SSL_METHOD *method)
38b051a1
TM		 735{
736 SSL_CONNECTION *s;
737 SSL *ssl;
0f113f3e 738
b51bce94 739 s = OPENSSL_zalloc(sizeof(*s));
0f113f3e 740 if (s == NULL)
38b051a1 741 return NULL;
0f113f3e 742
38b051a1 743 ssl = &s->ssl;
a7f41885 744 if (!ossl_ssl_init(ssl, ctx, method, SSL_TYPE_SSL_CONNECTION)) {
e6b10c34
BE		 745 OPENSSL_free(s);
746 s = NULL;
c4a44e7b 747 ssl = NULL;
e077455e 748 goto sslerr;
e6b10c34 749 }
ae3947de 750
c036e210 751 RECORD_LAYER_init(&s->rlayer, s);
28d59af8 752
0f113f3e 753 s->options = ctx->options;
f0d9757c 754
5ae4ceb9 755 s->dane.flags = ctx->dane.flags;
4f373a97
TM		 756 if (method->version == ctx->method->version) {
757 s->min_proto_version = ctx->min_proto_version;
758 s->max_proto_version = ctx->max_proto_version;
759 }
0f113f3e
MC		 760 s->mode = ctx->mode;
761 s->max_cert_list = ctx->max_cert_list;
3fc8d856 762 s->max_early_data = ctx->max_early_data;
4e8548e8 763 s->recv_max_early_data = ctx->recv_max_early_data;
9d0a8bb7 764 s->num_tickets = ctx->num_tickets;
e97be718 765 s->pha_enabled = ctx->pha_enabled;
0f113f3e 766
f865b081
MC		 767 /* Shallow copy of the ciphersuites stack */
768 s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
769 if (s->tls13_ciphersuites == NULL)
e077455e 770 goto cerr;
f865b081 771
2c382349
KR		 772 /*
773 * Earlier library versions used to copy the pointer to the CERT, not
774 * its contents; only when setting new parameters for the per-SSL
775 * copy, ssl_cert_new would be called (and the direct reference to
776 * the per-SSL_CTX settings would be lost, but those still were
777 * indirectly accessed for various purposes, and for that reason they
778 * used to be known as s->ctx->default_cert). Now we don't look at the
779 * SSL_CTX's CERT after having duplicated it once.
780 */
781 s->cert = ssl_cert_dup(ctx->cert);
782 if (s->cert == NULL)
e077455e 783 goto sslerr;
0f113f3e 784
52e1d7b1 785 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
0f113f3e
MC		 786 s->msg_callback = ctx->msg_callback;
787 s->msg_callback_arg = ctx->msg_callback_arg;
788 s->verify_mode = ctx->verify_mode;
789 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
d0638fd5
HL		 790 if (!IS_QUIC_CTX(ctx)) {
791 s->rlayer.record_padding_cb = ctx->record_padding_cb;
792 s->rlayer.record_padding_arg = ctx->record_padding_arg;
793 s->rlayer.block_padding = ctx->block_padding;
794 }
0f113f3e 795 s->sid_ctx_length = ctx->sid_ctx_length;
cbe29648 796 if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
380a522f 797 goto err;
0f113f3e
MC		 798 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
799 s->verify_callback = ctx->default_verify_callback;
800 s->generate_session_id = ctx->generate_session_id;
801
802 s->param = X509_VERIFY_PARAM_new();
a71edf3b 803 if (s->param == NULL)
e077455e 804 goto asn1err;
0f113f3e 805 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
0f113f3e 806 s->quiet_shutdown = ctx->quiet_shutdown;
cf72c757 807
d0638fd5
HL		 808 if (!IS_QUIC_SSL(ssl))
809 s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
810
0f113f3e 811 s->max_send_fragment = ctx->max_send_fragment;
d102d9df
MC		 812 s->split_send_fragment = ctx->split_send_fragment;
813 s->max_pipelines = ctx->max_pipelines;
cffafb5f 814 s->rlayer.default_read_buf_len = ctx->default_read_buf_len;
bf21446a 815
aff8c126
RS		 816 s->ext.debug_cb = 0;
817 s->ext.debug_arg = NULL;
818 s->ext.ticket_expected = 0;
819 s->ext.status_type = ctx->ext.status_type;
820 s->ext.status_expected = 0;
821 s->ext.ocsp.ids = NULL;
822 s->ext.ocsp.exts = NULL;
823 s->ext.ocsp.resp = NULL;
824 s->ext.ocsp.resp_len = 0;
16203f7b 825 SSL_CTX_up_ref(ctx);
222da979 826 s->session_ctx = ctx;
aff8c126
RS		 827 if (ctx->ext.ecpointformats) {
828 s->ext.ecpointformats =
829 OPENSSL_memdup(ctx->ext.ecpointformats,
830 ctx->ext.ecpointformats_len);
39a14059
MC		 831 if (!s->ext.ecpointformats) {
832 s->ext.ecpointformats_len = 0;
0f113f3e 833 goto err;
39a14059 834 }
aff8c126
RS		 835 s->ext.ecpointformats_len =
836 ctx->ext.ecpointformats_len;
837 }
838 if (ctx->ext.supportedgroups) {
839 s->ext.supportedgroups =
840 OPENSSL_memdup(ctx->ext.supportedgroups,
9e84a42d 841 ctx->ext.supportedgroups_len
b92d7b62 842 * sizeof(*ctx->ext.supportedgroups));
39a14059
MC		 843 if (!s->ext.supportedgroups) {
844 s->ext.supportedgroups_len = 0;
0f113f3e 845 goto err;
39a14059 846 }
aff8c126 847 s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
0f113f3e 848 }
dbc6268f 849
a230b26e 850#ifndef OPENSSL_NO_NEXTPROTONEG
aff8c126 851 s->ext.npn = NULL;
a230b26e 852#endif
6f017a8f 853
38b051a1
TM		 854 if (ctx->ext.alpn != NULL) {
855 s->ext.alpn = OPENSSL_malloc(ctx->ext.alpn_len);
39a14059
MC		 856 if (s->ext.alpn == NULL) {
857 s->ext.alpn_len = 0;
0f113f3e 858 goto err;
39a14059 859 }
38b051a1
TM		 860 memcpy(s->ext.alpn, ctx->ext.alpn, ctx->ext.alpn_len);
861 s->ext.alpn_len = ctx->ext.alpn_len;
0f113f3e 862 }
d02b48c6 863
696178ed 864 s->verified_chain = NULL;
0f113f3e 865 s->verify_result = X509_V_OK;
d02b48c6 866
a974e64a
MC		 867 s->default_passwd_callback = ctx->default_passwd_callback;
868 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
869
44c04a2e
MC		 870 s->key_update = SSL_KEY_UPDATE_NONE;
871
c9598459
MC		 872 s->allow_early_data_cb = ctx->allow_early_data_cb;
873 s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
874
a7f41885 875 if (!method->ssl_init(ssl))
e077455e 876 goto sslerr;
d02b48c6 877
a7f41885 878 s->server = (method->ssl_accept == ssl_undefined_function) ? 0 : 1;
bf21446a 879
a7f41885 880 if (!method->ssl_reset(ssl))
e077455e 881 goto sslerr;
58964a49 882
ddac1974 883#ifndef OPENSSL_NO_PSK
0f113f3e
MC		 884 s->psk_client_callback = ctx->psk_client_callback;
885 s->psk_server_callback = ctx->psk_server_callback;
ddac1974 886#endif
f46184bd
MC		 887 s->psk_find_session_cb = ctx->psk_find_session_cb;
888 s->psk_use_session_cb = ctx->psk_use_session_cb;
ddac1974 889
9f5a87fd
PY		 890 s->async_cb = ctx->async_cb;
891 s->async_cb_arg = ctx->async_cb_arg;
892
07bbc92c
MC		 893 s->job = NULL;
894
b67cb09f
TS		 895#ifndef OPENSSL_NO_COMP_ALG
896 memcpy(s->cert_comp_prefs, ctx->cert_comp_prefs, sizeof(s->cert_comp_prefs));
897#endif
3c95ef22
TS		 898 if (ctx->client_cert_type != NULL) {
899 s->client_cert_type = OPENSSL_memdup(ctx->client_cert_type,
900 ctx->client_cert_type_len);
901 if (s->client_cert_type == NULL)
902 goto sslerr;
903 s->client_cert_type_len = ctx->client_cert_type_len;
904 }
905 if (ctx->server_cert_type != NULL) {
906 s->server_cert_type = OPENSSL_memdup(ctx->server_cert_type,
907 ctx->server_cert_type_len);
908 if (s->server_cert_type == NULL)
909 goto sslerr;
910 s->server_cert_type_len = ctx->server_cert_type_len;
911 }
b67cb09f 912
ed29e82a 913#ifndef OPENSSL_NO_CT
38b051a1 914 if (!SSL_set_ct_validation_callback(ssl, ctx->ct_validation_callback,
a230b26e 915 ctx->ct_validation_callback_arg))
e077455e 916 goto sslerr;
ed29e82a
RP		 917#endif
918
ee58915c 919 s->ssl_pkey_num = SSL_PKEY_NUM + ctx->sigalg_list_len;
38b051a1 920 return ssl;
e077455e
RL		 921 cerr:
922 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
923 goto err;
924 asn1err:
925 ERR_raise(ERR_LIB_SSL, ERR_R_ASN1_LIB);
926 goto err;
927 sslerr:
928 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
0f113f3e 929 err:
38b051a1 930 SSL_free(ssl);
16203f7b 931 return NULL;
0f113f3e 932}
d02b48c6 933
a7f41885
MC		 934SSL *ossl_ssl_connection_new(SSL_CTX *ctx)
935{
936 return ossl_ssl_connection_new_int(ctx, ctx->method);
937}
938
e417070c
RS		 939int SSL_is_dtls(const SSL *s)
940{
38b051a1
TM		 941 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
942
50769b15 943#ifndef OPENSSL_NO_QUIC
f8636c7e 944 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
50769b15
MC		 945 return 0;
946#endif
947
38b051a1
TM		 948 if (sc == NULL)
949 return 0;
950
951 return SSL_CONNECTION_IS_DTLS(sc) ? 1 : 0;
e417070c
RS		 952}
953
50769b15
MC		 954int SSL_is_tls(const SSL *s)
955{
956 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
957
958#ifndef OPENSSL_NO_QUIC
f8636c7e 959 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
50769b15
MC		 960 return 0;
961#endif
962
963 if (sc == NULL)
964 return 0;
965
966 return SSL_CONNECTION_IS_DTLS(sc) ? 0 : 1;
967}
968
969int SSL_is_quic(const SSL *s)
970{
971#ifndef OPENSSL_NO_QUIC
f8636c7e 972 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
50769b15
MC		 973 return 1;
974#endif
975 return 0;
976}
977
c5ebfcab 978int SSL_up_ref(SSL *s)
a18a31e4 979{
16203f7b 980 int i;
c5ebfcab 981
43a07d6d 982 if (CRYPTO_UP_REF(&s->references, &i) <= 0)
c5ebfcab
F		 983 return 0;
984
985 REF_PRINT_COUNT("SSL", s);
986 REF_ASSERT_ISNT(i < 2);
987 return ((i > 1) ? 1 : 0);
a18a31e4
MC		 988}
989
0f113f3e
MC		 990int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
991 unsigned int sid_ctx_len)
992{
fe9edc9d 993 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
6849b73c 994 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
0f113f3e
MC		 995 return 0;
996 }
997 ctx->sid_ctx_length = sid_ctx_len;
998 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
4eb77b26
BM		 999
1000 return 1;
0f113f3e 1001}
4eb77b26 1002
0f113f3e
MC		 1003int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
1004 unsigned int sid_ctx_len)
1005{
38b051a1
TM		 1006 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1007
1008 if (sc == NULL)
1009 return 0;
1010
0f113f3e 1011 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
6849b73c 1012 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
0f113f3e
MC		 1013 return 0;
1014 }
38b051a1
TM		 1015 sc->sid_ctx_length = sid_ctx_len;
1016 memcpy(sc->sid_ctx, sid_ctx, sid_ctx_len);
b4cadc6e
BL		 1017
1018 return 1;
0f113f3e 1019}
b4cadc6e 1020
dc644fe2 1021int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
0f113f3e 1022{
cd3f8c1b
RS		 1023 if (!CRYPTO_THREAD_write_lock(ctx->lock))
1024 return 0;
0f113f3e 1025 ctx->generate_session_id = cb;
16203f7b 1026 CRYPTO_THREAD_unlock(ctx->lock);
0f113f3e
MC		 1027 return 1;
1028}
dc644fe2
GT		 1029
1030int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
0f113f3e 1031{
38b051a1
TM		 1032 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1033
1034 if (sc == NULL || !CRYPTO_THREAD_write_lock(ssl->lock))
cd3f8c1b 1035 return 0;
38b051a1 1036 sc->generate_session_id = cb;
16203f7b 1037 CRYPTO_THREAD_unlock(ssl->lock);
0f113f3e
MC		 1038 return 1;
1039}
dc644fe2 1040
f85c9904 1041int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
0f113f3e
MC		 1042 unsigned int id_len)
1043{
1044 /*
1045 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
69687aa8 1046 * we can "construct" a session to give us the desired check - i.e. to
0f113f3e
MC		 1047 * find if there's a session in the hash table that would conflict with
1048 * any new session built out of this id/id_len and the ssl_version in use
1049 * by this SSL.
1050 */
1051 SSL_SESSION r, *p;
38b051a1 1052 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
0f113f3e 1053
38b051a1 1054 if (sc == NULL || id_len > sizeof(r.session_id))
0f113f3e
MC		 1055 return 0;
1056
38b051a1 1057 r.ssl_version = sc->version;
0f113f3e
MC		 1058 r.session_id_length = id_len;
1059 memcpy(r.session_id, id, id_len);
1060
38b051a1 1061 if (!CRYPTO_THREAD_read_lock(sc->session_ctx->lock))
cd3f8c1b 1062 return 0;
38b051a1
TM		 1063 p = lh_SSL_SESSION_retrieve(sc->session_ctx->sessions, &r);
1064 CRYPTO_THREAD_unlock(sc->session_ctx->lock);
0f113f3e
MC		 1065 return (p != NULL);
1066}
dc644fe2 1067
bb7cd4e3 1068int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
0f113f3e
MC		 1069{
1070 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
1071}
bb7cd4e3
DSH		 1072
1073int SSL_set_purpose(SSL *s, int purpose)
0f113f3e 1074{
38b051a1
TM		 1075 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1076
1077 if (sc == NULL)
1078 return 0;
1079
1080 return X509_VERIFY_PARAM_set_purpose(sc->param, purpose);
0f113f3e 1081}
926a56bf 1082
bb7cd4e3 1083int SSL_CTX_set_trust(SSL_CTX *s, int trust)
0f113f3e
MC		 1084{
1085 return X509_VERIFY_PARAM_set_trust(s->param, trust);
1086}
bb7cd4e3
DSH		 1087
1088int SSL_set_trust(SSL *s, int trust)
0f113f3e 1089{
38b051a1
TM		 1090 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1091
1092 if (sc == NULL)
1093 return 0;
1094
1095 return X509_VERIFY_PARAM_set_trust(sc->param, trust);
0f113f3e 1096}
bb7cd4e3 1097
919ba009
VD		 1098int SSL_set1_host(SSL *s, const char *hostname)
1099{
38b051a1
TM		 1100 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1101
1102 if (sc == NULL)
1103 return 0;
1104
c832840e
DW		 1105 /* If a hostname is provided and parses as an IP address,
1106 * treat it as such. */
38b051a1
TM		 1107 if (hostname != NULL
1108 && X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname) == 1)
c832840e
DW		 1109 return 1;
1110
38b051a1 1111 return X509_VERIFY_PARAM_set1_host(sc->param, hostname, 0);
919ba009
VD		 1112}
1113
1114int SSL_add1_host(SSL *s, const char *hostname)
1115{
38b051a1
TM		 1116 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1117
1118 if (sc == NULL)
1119 return 0;
1120
c832840e
DW		 1121 /* If a hostname is provided and parses as an IP address,
1122 * treat it as such. */
892a9e4c
DW		 1123 if (hostname)
1124 {
1125 ASN1_OCTET_STRING *ip;
1126 char *old_ip;
1127
1128 ip = a2i_IPADDRESS(hostname);
1129 if (ip) {
1130 /* We didn't want it; only to check if it *is* an IP address */
1131 ASN1_OCTET_STRING_free(ip);
1132
38b051a1 1133 old_ip = X509_VERIFY_PARAM_get1_ip_asc(sc->param);
892a9e4c
DW		 1134 if (old_ip)
1135 {
f2bfc53b 1136 OPENSSL_free(old_ip);
892a9e4c
DW		 1137 /* There can be only one IP address */
1138 return 0;
1139 }
1140
38b051a1 1141 return X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname);
892a9e4c
DW		 1142 }
1143 }
c832840e 1144
38b051a1 1145 return X509_VERIFY_PARAM_add1_host(sc->param, hostname, 0);
919ba009
VD		 1146}
1147
1148void SSL_set_hostflags(SSL *s, unsigned int flags)
1149{
38b051a1
TM		 1150 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1151
1152 if (sc == NULL)
1153 return;
1154
1155 X509_VERIFY_PARAM_set_hostflags(sc->param, flags);
919ba009
VD		 1156}
1157
4588cb44 1158const char *SSL_get0_peername(SSL *s)
919ba009 1159{
38b051a1
TM		 1160 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1161
1162 if (sc == NULL)
1163 return NULL;
1164
1165 return X509_VERIFY_PARAM_get0_peername(sc->param);
919ba009
VD		 1166}
1167
1168int SSL_CTX_dane_enable(SSL_CTX *ctx)
1169{
1170 return dane_ctx_enable(&ctx->dane);
1171}
1172
5ae4ceb9
VD		 1173unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
1174{
1175 unsigned long orig = ctx->dane.flags;
1176
1177 ctx->dane.flags |= flags;
1178 return orig;
1179}
1180
1181unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
1182{
1183 unsigned long orig = ctx->dane.flags;
1184
1185 ctx->dane.flags &= ~flags;
1186 return orig;
1187}
1188
919ba009
VD		 1189int SSL_dane_enable(SSL *s, const char *basedomain)
1190{
38b051a1
TM		 1191 SSL_DANE *dane;
1192 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
919ba009 1193
38b051a1
TM		 1194 if (sc == NULL)
1195 return 0;
1196
1197 dane = &sc->dane;
919ba009 1198 if (s->ctx->dane.mdmax == 0) {
6849b73c 1199 ERR_raise(ERR_LIB_SSL, SSL_R_CONTEXT_NOT_DANE_ENABLED);
919ba009
VD		 1200 return 0;
1201 }
1202 if (dane->trecs != NULL) {
6849b73c 1203 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_ALREADY_ENABLED);
919ba009
VD		 1204 return 0;
1205 }
1206
8d887efa
VD		 1207 /*
1208 * Default SNI name. This rejects empty names, while set1_host below
9929c817 1209 * accepts them and disables hostname checks. To avoid side-effects with
8d887efa
VD		 1210 * invalid input, set the SNI name first.
1211 */
38b051a1 1212 if (sc->ext.hostname == NULL) {
dccd20d1 1213 if (!SSL_set_tlsext_host_name(s, basedomain)) {
6849b73c 1214 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
dccd20d1 1215 return -1;
8d887efa
VD		 1216 }
1217 }
1218
919ba009 1219 /* Primary RFC6125 reference identifier */
38b051a1 1220 if (!X509_VERIFY_PARAM_set1_host(sc->param, basedomain, 0)) {
6849b73c 1221 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
919ba009
VD		 1222 return -1;
1223 }
1224
919ba009
VD		 1225 dane->mdpth = -1;
1226 dane->pdpth = -1;
1227 dane->dctx = &s->ctx->dane;
1228 dane->trecs = sk_danetls_record_new_null();
1229
1230 if (dane->trecs == NULL) {
e077455e 1231 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
919ba009
VD		 1232 return -1;
1233 }
1234 return 1;
1235}
1236
5ae4ceb9
VD		 1237unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
1238{
38b051a1
TM		 1239 unsigned long orig;
1240 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1241
1242 if (sc == NULL)
1243 return 0;
1244
1245 orig = sc->dane.flags;
5ae4ceb9 1246
38b051a1 1247 sc->dane.flags |= flags;
5ae4ceb9
VD		 1248 return orig;
1249}
1250
1251unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
1252{
38b051a1
TM		 1253 unsigned long orig;
1254 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5ae4ceb9 1255
38b051a1
TM		 1256 if (sc == NULL)
1257 return 0;
1258
1259 orig = sc->dane.flags;
1260
1261 sc->dane.flags &= ~flags;
5ae4ceb9
VD		 1262 return orig;
1263}
1264
919ba009
VD		 1265int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
1266{
38b051a1
TM		 1267 SSL_DANE *dane;
1268 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
919ba009 1269
38b051a1
TM		 1270 if (sc == NULL)
1271 return -1;
1272
1273 dane = &sc->dane;
1274
1275 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
919ba009
VD		 1276 return -1;
1277 if (dane->mtlsa) {
1278 if (mcert)
1279 *mcert = dane->mcert;
1280 if (mspki)
1281 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
1282 }
1283 return dane->mdpth;
1284}
1285
1286int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
6d4313f0 1287 uint8_t *mtype, const unsigned char **data, size_t *dlen)
919ba009 1288{
38b051a1
TM		 1289 SSL_DANE *dane;
1290 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
919ba009 1291
38b051a1
TM		 1292 if (sc == NULL)
1293 return -1;
1294
1295 dane = &sc->dane;
1296
1297 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
919ba009
VD		 1298 return -1;
1299 if (dane->mtlsa) {
1300 if (usage)
1301 *usage = dane->mtlsa->usage;
1302 if (selector)
1303 *selector = dane->mtlsa->selector;
1304 if (mtype)
1305 *mtype = dane->mtlsa->mtype;
1306 if (data)
1307 *data = dane->mtlsa->data;
1308 if (dlen)
1309 *dlen = dane->mtlsa->dlen;
1310 }
1311 return dane->mdpth;
1312}
1313
b9aec69a 1314SSL_DANE *SSL_get0_dane(SSL *s)
919ba009 1315{
38b051a1
TM		 1316 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1317
1318 if (sc == NULL)
1319 return NULL;
1320
1321 return &sc->dane;
919ba009
VD		 1322}
1323
1324int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
6d4313f0 1325 uint8_t mtype, const unsigned char *data, size_t dlen)
919ba009 1326{
38b051a1
TM		 1327 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1328
1329 if (sc == NULL)
1330 return 0;
1331
1332 return dane_tlsa_add(&sc->dane, usage, selector, mtype, data, dlen);
919ba009
VD		 1333}
1334
a230b26e
EK		 1335int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
1336 uint8_t ord)
919ba009
VD		 1337{
1338 return dane_mtype_set(&ctx->dane, md, mtype, ord);
1339}
1340
ccf11751 1341int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
0f113f3e
MC		 1342{
1343 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
1344}
ccf11751
DSH		 1345
1346int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
0f113f3e 1347{
38b051a1
TM		 1348 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1349
1350 if (sc == NULL)
1351 return 0;
1352
1353 return X509_VERIFY_PARAM_set1(sc->param, vpm);
0f113f3e 1354}
ccf11751 1355
7af31968 1356X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
0f113f3e
MC		 1357{
1358 return ctx->param;
1359}
7af31968
DSH		 1360
1361X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
0f113f3e 1362{
38b051a1
TM		 1363 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1364
1365 if (sc == NULL)
1366 return NULL;
1367
1368 return sc->param;
0f113f3e 1369}
7af31968 1370
a5ee80b9 1371void SSL_certs_clear(SSL *s)
0f113f3e 1372{
38b051a1
TM		 1373 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1374
1375 if (sc == NULL)
1376 return;
1377
1378 ssl_cert_clear_certs(sc->cert);
0f113f3e 1379}
a5ee80b9 1380
4f43d0e7 1381void SSL_free(SSL *s)
0f113f3e
MC		 1382{
1383 int i;
58964a49 1384
e6e9170d
RS		 1385 if (s == NULL)
1386 return;
43a07d6d 1387 CRYPTO_DOWN_REF(&s->references, &i);
f3f1cf84 1388 REF_PRINT_COUNT("SSL", s);
0f113f3e
MC		 1389 if (i > 0)
1390 return;
f3f1cf84 1391 REF_ASSERT_ISNT(i < 0);
d02b48c6 1392
38b051a1
TM		 1393 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1394
1395 if (s->method != NULL)
1396 s->method->ssl_free(s);
1397
1398 SSL_CTX_free(s->ctx);
1399 CRYPTO_THREAD_lock_free(s->lock);
43a07d6d 1400 CRYPTO_FREE_REF(&s->references);
38b051a1
TM		 1401
1402 OPENSSL_free(s);
1403}
1404
1405void ossl_ssl_connection_free(SSL *ssl)
1406{
1407 SSL_CONNECTION *s;
1408
1409 s = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
1410 if (s == NULL)
1411 return;
1412
222561fe 1413 X509_VERIFY_PARAM_free(s->param);
919ba009 1414 dane_final(&s->dane);
0f113f3e 1415
b77f3ed1 1416 /* Ignore return value */
2e7dc7cd
MC		 1417 ssl_free_wbio_buffer(s);
1418
9ff51954
MC		 1419 RECORD_LAYER_clear(&s->rlayer);
1420
25aaa98a 1421 BUF_MEM_free(s->init_buf);
0f113f3e
MC		 1422
1423 /* add extra stuff */
25aaa98a
RS		 1424 sk_SSL_CIPHER_free(s->cipher_list);
1425 sk_SSL_CIPHER_free(s->cipher_list_by_id);
f865b081 1426 sk_SSL_CIPHER_free(s->tls13_ciphersuites);
eee2a6a7 1427 sk_SSL_CIPHER_free(s->peer_ciphers);
0f113f3e
MC		 1428
1429 /* Make the next call work :-) */
1430 if (s->session != NULL) {
1431 ssl_clear_bad_session(s);
1432 SSL_SESSION_free(s->session);
1433 }
9368f865 1434 SSL_SESSION_free(s->psksession);
add8d0e9 1435 OPENSSL_free(s->psksession_id);
0f113f3e 1436
e0e920b1 1437 ssl_cert_free(s->cert);
29948ac8 1438 OPENSSL_free(s->shared_sigalgs);
0f113f3e 1439 /* Free up if allocated */
d02b48c6 1440
aff8c126 1441 OPENSSL_free(s->ext.hostname);
222da979 1442 SSL_CTX_free(s->session_ctx);
aff8c126 1443 OPENSSL_free(s->ext.ecpointformats);
cd0fb43c 1444 OPENSSL_free(s->ext.peer_ecpointformats);
aff8c126 1445 OPENSSL_free(s->ext.supportedgroups);
45436e61 1446 OPENSSL_free(s->ext.peer_supportedgroups);
aff8c126 1447 sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
3e41ac35 1448#ifndef OPENSSL_NO_OCSP
aff8c126 1449 sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
3e41ac35 1450#endif
ed29e82a
RP		 1451#ifndef OPENSSL_NO_CT
1452 SCT_LIST_free(s->scts);
aff8c126 1453 OPENSSL_free(s->ext.scts);
ed29e82a 1454#endif
aff8c126
RS		 1455 OPENSSL_free(s->ext.ocsp.resp);
1456 OPENSSL_free(s->ext.alpn);
cfef5027 1457 OPENSSL_free(s->ext.tls13_cookie);
94941cad
MK		 1458 if (s->clienthello != NULL)
1459 OPENSSL_free(s->clienthello->pre_proc_exts);
6b1bb98f 1460 OPENSSL_free(s->clienthello);
9d75dce3
TS		 1461 OPENSSL_free(s->pha_context);
1462 EVP_MD_CTX_free(s->pha_dgst);
0f113f3e 1463
fa7c2637 1464 sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
98732979 1465 sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
0f113f3e 1466
3c95ef22
TS		 1467 OPENSSL_free(s->client_cert_type);
1468 OPENSSL_free(s->server_cert_type);
1469
79b2a2f2 1470 OSSL_STACK_OF_X509_free(s->verified_chain);
696178ed 1471
38b051a1
TM		 1472 if (ssl->method != NULL)
1473 ssl->method->ssl_deinit(ssl);
7c3908dd 1474
ff75a257
MC		 1475 ASYNC_WAIT_CTX_free(s->waitctx);
1476
e481f9b9 1477#if !defined(OPENSSL_NO_NEXTPROTONEG)
aff8c126 1478 OPENSSL_free(s->ext.npn);
ee2ffc27
BL		 1479#endif
1480
e783bae2 1481#ifndef OPENSSL_NO_SRTP
25aaa98a 1482 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
0f113f3e 1483#endif
cd6e89b6
MC		 1484
1485 /*
1486 * We do this late. We want to ensure that any other references we held to
1487 * these BIOs are freed first *before* we call BIO_free_all(), because
1488 * BIO_free_all() will only free each BIO in the chain if the number of
1489 * references to the first BIO have dropped to 0
1490 */
1491 BIO_free_all(s->wbio);
1492 s->wbio = NULL;
1493 BIO_free_all(s->rbio);
1494 s->rbio = NULL;
ee58915c 1495 OPENSSL_free(s->s3.tmp.valid_flags);
0f113f3e
MC		 1496}
1497
65e2d672 1498void SSL_set0_rbio(SSL *s, BIO *rbio)
3ffbe008 1499{
38b051a1 1500 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
03bacce8 1501
6d495cc4
HL		 1502#ifndef OPENSSL_NO_QUIC
1503 if (IS_QUIC(s)) {
1504 ossl_quic_conn_set0_net_rbio(s, rbio);
03bacce8
HL		 1505 return;
1506 }
1507#endif
38b051a1
TM		 1508
1509 if (sc == NULL)
1510 return;
1511
1512 BIO_free_all(sc->rbio);
1513 sc->rbio = rbio;
cffafb5f 1514 sc->rlayer.rrlmethod->set1_bio(sc->rlayer.rrl, sc->rbio);
3ffbe008
MC		 1515}
1516
65e2d672 1517void SSL_set0_wbio(SSL *s, BIO *wbio)
0f113f3e 1518{
38b051a1 1519 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
03bacce8 1520
6d495cc4
HL		 1521#ifndef OPENSSL_NO_QUIC
1522 if (IS_QUIC(s)) {
1523 ossl_quic_conn_set0_net_wbio(s, wbio);
03bacce8
HL		 1524 return;
1525 }
1526#endif
38b051a1
TM		 1527
1528 if (sc == NULL)
1529 return;
1530
0f113f3e
MC		 1531 /*
1532 * If the output buffering BIO is still in place, remove it
1533 */
38b051a1
TM		 1534 if (sc->bbio != NULL)
1535 sc->wbio = BIO_pop(sc->wbio);
2e7dc7cd 1536
38b051a1
TM		 1537 BIO_free_all(sc->wbio);
1538 sc->wbio = wbio;
2e7dc7cd
MC		 1539
1540 /* Re-attach |bbio| to the new |wbio|. */
38b051a1
TM		 1541 if (sc->bbio != NULL)
1542 sc->wbio = BIO_push(sc->bbio, sc->wbio);
b5cf81f7
MC		 1543
1544 sc->rlayer.wrlmethod->set1_bio(sc->rlayer.wrl, sc->wbio);
0f113f3e 1545}
d02b48c6 1546
3ffbe008
MC		 1547void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1548{
65e2d672
MC		 1549 /*
1550 * For historical reasons, this function has many different cases in
1551 * ownership handling.
1552 */
1553
1554 /* If nothing has changed, do nothing */
1555 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1556 return;
1557
1558 /*
1559 * If the two arguments are equal then one fewer reference is granted by the
1560 * caller than we want to take
1561 */
1562 if (rbio != NULL && rbio == wbio)
1563 BIO_up_ref(rbio);
1564
1565 /*
1566 * If only the wbio is changed only adopt one reference.
1567 */
1568 if (rbio == SSL_get_rbio(s)) {
1569 SSL_set0_wbio(s, wbio);
1570 return;
1571 }
1572 /*
1573 * There is an asymmetry here for historical reasons. If only the rbio is
1574 * changed AND the rbio and wbio were originally different, then we only
1575 * adopt one reference.
1576 */
1577 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1578 SSL_set0_rbio(s, rbio);
1579 return;
1580 }
1581
1582 /* Otherwise, adopt both references. */
1583 SSL_set0_rbio(s, rbio);
1584 SSL_set0_wbio(s, wbio);
3ffbe008
MC		 1585}
1586
0821bcd4 1587BIO *SSL_get_rbio(const SSL *s)
0f113f3e 1588{
38b051a1 1589 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
03bacce8 1590
6d495cc4
HL		 1591#ifndef OPENSSL_NO_QUIC
1592 if (IS_QUIC(s))
1593 return ossl_quic_conn_get_net_rbio(s);
03bacce8 1594#endif
38b051a1
TM		 1595
1596 if (sc == NULL)
1597 return NULL;
1598
1599 return sc->rbio;
0f113f3e 1600}
d02b48c6 1601
0821bcd4 1602BIO *SSL_get_wbio(const SSL *s)
0f113f3e 1603{
38b051a1 1604 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
03bacce8 1605
6d495cc4
HL		 1606#ifndef OPENSSL_NO_QUIC
1607 if (IS_QUIC(s))
1608 return ossl_quic_conn_get_net_wbio(s);
03bacce8 1609#endif
38b051a1
TM		 1610
1611 if (sc == NULL)
1612 return NULL;
1613
1614 if (sc->bbio != NULL) {
2e7dc7cd
MC		 1615 /*
1616 * If |bbio| is active, the true caller-configured BIO is its
1617 * |next_bio|.
1618 */
38b051a1 1619 return BIO_next(sc->bbio);
2e7dc7cd 1620 }
38b051a1 1621 return sc->wbio;
0f113f3e 1622}
d02b48c6 1623
0821bcd4 1624int SSL_get_fd(const SSL *s)
0f113f3e 1625{
2e7dc7cd 1626 return SSL_get_rfd(s);
0f113f3e 1627}
24cbf3ef 1628
0821bcd4 1629int SSL_get_rfd(const SSL *s)
0f113f3e
MC		 1630{
1631 int ret = -1;
1632 BIO *b, *r;
1633
1634 b = SSL_get_rbio(s);
1635 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1636 if (r != NULL)
1637 BIO_get_fd(r, &ret);
26a7d938 1638 return ret;
0f113f3e 1639}
d02b48c6 1640
0821bcd4 1641int SSL_get_wfd(const SSL *s)
0f113f3e
MC		 1642{
1643 int ret = -1;
1644 BIO *b, *r;
1645
1646 b = SSL_get_wbio(s);
1647 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1648 if (r != NULL)
1649 BIO_get_fd(r, &ret);
26a7d938 1650 return ret;
0f113f3e 1651}
24cbf3ef 1652
bc36ee62 1653#ifndef OPENSSL_NO_SOCK
0f113f3e
MC		 1654int SSL_set_fd(SSL *s, int fd)
1655{
1656 int ret = 0;
1657 BIO *bio = NULL;
1658
1659 bio = BIO_new(BIO_s_socket());
1660
1661 if (bio == NULL) {
6849b73c 1662 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
0f113f3e
MC		 1663 goto err;
1664 }
1665 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1666 SSL_set_bio(s, bio, bio);
50ec7505
BP		 1667#ifndef OPENSSL_NO_KTLS
1668 /*
1669 * The new socket is created successfully regardless of ktls_enable.
1670 * ktls_enable doesn't change any functionality of the socket, except
1671 * changing the setsockopt to enable the processing of ktls_start.
1672 * Thus, it is not a problem to call it for non-TLS sockets.
1673 */
1674 ktls_enable(fd);
1675#endif /* OPENSSL_NO_KTLS */
0f113f3e
MC		 1676 ret = 1;
1677 err:
26a7d938 1678 return ret;
0f113f3e 1679}
d02b48c6 1680
0f113f3e
MC		 1681int SSL_set_wfd(SSL *s, int fd)
1682{
2e7dc7cd 1683 BIO *rbio = SSL_get_rbio(s);
0f113f3e 1684
2e7dc7cd
MC		 1685 if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET
1686 || (int)BIO_get_fd(rbio, NULL) != fd) {
1687 BIO *bio = BIO_new(BIO_s_socket());
0f113f3e
MC		 1688
1689 if (bio == NULL) {
6849b73c 1690 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
2e7dc7cd 1691 return 0;
0f113f3e
MC		 1692 }
1693 BIO_set_fd(bio, fd, BIO_NOCLOSE);
65e2d672 1694 SSL_set0_wbio(s, bio);
50ec7505
BP		 1695#ifndef OPENSSL_NO_KTLS
1696 /*
1697 * The new socket is created successfully regardless of ktls_enable.
1698 * ktls_enable doesn't change any functionality of the socket, except
1699 * changing the setsockopt to enable the processing of ktls_start.
1700 * Thus, it is not a problem to call it for non-TLS sockets.
1701 */
1702 ktls_enable(fd);
1703#endif /* OPENSSL_NO_KTLS */
2e7dc7cd 1704 } else {
65e2d672
MC		 1705 BIO_up_ref(rbio);
1706 SSL_set0_wbio(s, rbio);
2e7dc7cd
MC		 1707 }
1708 return 1;
0f113f3e
MC		 1709}
1710
1711int SSL_set_rfd(SSL *s, int fd)
1712{
2e7dc7cd 1713 BIO *wbio = SSL_get_wbio(s);
0f113f3e 1714
2e7dc7cd
MC		 1715 if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET
1716 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
1717 BIO *bio = BIO_new(BIO_s_socket());
0f113f3e
MC		 1718
1719 if (bio == NULL) {
6849b73c 1720 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
2e7dc7cd 1721 return 0;
0f113f3e
MC		 1722 }
1723 BIO_set_fd(bio, fd, BIO_NOCLOSE);
65e2d672 1724 SSL_set0_rbio(s, bio);
2e7dc7cd 1725 } else {
65e2d672
MC		 1726 BIO_up_ref(wbio);
1727 SSL_set0_rbio(s, wbio);
2e7dc7cd
MC		 1728 }
1729
1730 return 1;
0f113f3e
MC		 1731}
1732#endif
ca03109c
BM		 1733
1734/* return length of latest Finished message we sent, copy to 'buf' */
0821bcd4 1735size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
0f113f3e
MC		 1736{
1737 size_t ret = 0;
38b051a1
TM		 1738 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1739
1740 if (sc == NULL)
1741 return 0;
0f113f3e 1742
38b051a1 1743 ret = sc->s3.tmp.finish_md_len;
555cbb32
TS		 1744 if (count > ret)
1745 count = ret;
38b051a1 1746 memcpy(buf, sc->s3.tmp.finish_md, count);
0f113f3e
MC		 1747 return ret;
1748}
ca03109c
BM		 1749
1750/* return length of latest Finished message we expected, copy to 'buf' */
0821bcd4 1751size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
0f113f3e
MC		 1752{
1753 size_t ret = 0;
38b051a1 1754 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
ca03109c 1755
38b051a1
TM		 1756 if (sc == NULL)
1757 return 0;
1758
1759 ret = sc->s3.tmp.peer_finish_md_len;
555cbb32
TS		 1760 if (count > ret)
1761 count = ret;
38b051a1 1762 memcpy(buf, sc->s3.tmp.peer_finish_md, count);
0f113f3e
MC		 1763 return ret;
1764}
ca03109c 1765
0821bcd4 1766int SSL_get_verify_mode(const SSL *s)
0f113f3e 1767{
38b051a1
TM		 1768 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1769
1770 if (sc == NULL)
1771 return 0;
1772
1773 return sc->verify_mode;
0f113f3e 1774}
d02b48c6 1775
0821bcd4 1776int SSL_get_verify_depth(const SSL *s)
0f113f3e 1777{
38b051a1
TM		 1778 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1779
1780 if (sc == NULL)
1781 return 0;
1782
1783 return X509_VERIFY_PARAM_get_depth(sc->param);
0f113f3e 1784}
7f89714e 1785
0f113f3e 1786int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
38b051a1
TM		 1787 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1788
1789 if (sc == NULL)
1790 return NULL;
1791
1792 return sc->verify_callback;
0f113f3e 1793}
d02b48c6 1794
0821bcd4 1795int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
0f113f3e 1796{
26a7d938 1797 return ctx->verify_mode;
0f113f3e 1798}
d02b48c6 1799
0821bcd4 1800int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
0f113f3e
MC		 1801{
1802 return X509_VERIFY_PARAM_get_depth(ctx->param);
1803}
1804
1805int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
26a7d938 1806 return ctx->default_verify_callback;
0f113f3e
MC		 1807}
1808
1809void SSL_set_verify(SSL *s, int mode,
1810 int (*callback) (int ok, X509_STORE_CTX *ctx))
1811{
38b051a1
TM		 1812 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1813
1814 if (sc == NULL)
1815 return;
1816
1817 sc->verify_mode = mode;
0f113f3e 1818 if (callback != NULL)
38b051a1 1819 sc->verify_callback = callback;
0f113f3e
MC		 1820}
1821
1822void SSL_set_verify_depth(SSL *s, int depth)
1823{
38b051a1
TM		 1824 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1825
1826 if (sc == NULL)
1827 return;
1828
1829 X509_VERIFY_PARAM_set_depth(sc->param, depth);
0f113f3e
MC		 1830}
1831
1832void SSL_set_read_ahead(SSL *s, int yes)
1833{
38b051a1 1834 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4566dae7 1835 OSSL_PARAM options[2], *opts = options;
38b051a1 1836
d0638fd5 1837 if (sc == NULL || IS_QUIC_SSL(s))
38b051a1
TM		 1838 return;
1839
1840 RECORD_LAYER_set_read_ahead(&sc->rlayer, yes);
4566dae7
MC		 1841
1842 *opts++ = OSSL_PARAM_construct_int(OSSL_LIBSSL_RECORD_LAYER_PARAM_READ_AHEAD,
1843 &sc->rlayer.read_ahead);
1844 *opts = OSSL_PARAM_construct_end();
1845
1846 /* Ignore return value */
1847 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
0f113f3e 1848}
d02b48c6 1849
0821bcd4 1850int SSL_get_read_ahead(const SSL *s)
0f113f3e 1851{
38b051a1
TM		 1852 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1853
d0638fd5 1854 if (sc == NULL || IS_QUIC_SSL(s))
38b051a1
TM		 1855 return 0;
1856
1857 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
0f113f3e 1858}
d02b48c6 1859
0821bcd4 1860int SSL_pending(const SSL *s)
0f113f3e 1861{
8b0e934a
MC		 1862 size_t pending = s->method->ssl_pending(s);
1863
0f113f3e
MC		 1864 /*
1865 * SSL_pending cannot work properly if read-ahead is enabled
1866 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1867 * impossible to fix since SSL_pending cannot report errors that may be
1868 * observed while scanning the new data. (Note that SSL_pending() is
1869 * often used as a boolean value, so we'd better not return -1.)
8b0e934a
MC		 1870 *
1871 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1872 * we just return INT_MAX.
0f113f3e 1873 */
348240c6 1874 return pending < INT_MAX ? (int)pending : INT_MAX;
0f113f3e 1875}
d02b48c6 1876
49580f25
MC		 1877int SSL_has_pending(const SSL *s)
1878{
9280d26a
HL		 1879#ifndef OPENSSL_NO_QUIC
1880 const QUIC_CONNECTION *qc = QUIC_CONNECTION_FROM_SSL(s);
1881#endif
1882
49580f25
MC		 1883 /*
1884 * Similar to SSL_pending() but returns a 1 to indicate that we have
6d6b295a
MC		 1885 * processed or unprocessed data available or 0 otherwise (as opposed to the
1886 * number of bytes available). Unlike SSL_pending() this will take into
1887 * account read_ahead data. A 1 return simply indicates that we have data.
1888 * That data may not result in any application data, or we may fail to parse
1889 * the records for some reason.
49580f25 1890 */
560470b5 1891 const SSL_CONNECTION *sc;
560470b5 1892
22b1a96f
HL		 1893#ifndef OPENSSL_NO_QUIC
1894 if (IS_QUIC(s))
6d495cc4 1895 return ossl_quic_has_pending(s);
560470b5
MC		 1896#endif
1897
560470b5 1898 sc = SSL_CONNECTION_FROM_CONST_SSL(s);
38b051a1 1899
9280d26a
HL		 1900#ifndef OPENSSL_NO_QUIC
1901 if (qc != NULL)
1902 return ossl_quic_has_pending(qc);
1903#endif
1904
6d6b295a
MC		 1905 /* Check buffered app data if any first */
1906 if (SSL_CONNECTION_IS_DTLS(sc)) {
eddb067e 1907 TLS_RECORD *rdata;
6d6b295a
MC		 1908 pitem *item, *iter;
1909
1910 iter = pqueue_iterator(sc->rlayer.d->buffered_app_data.q);
1911 while ((item = pqueue_next(&iter)) != NULL) {
1912 rdata = item->data;
eddb067e 1913 if (rdata->length > 0)
6d6b295a
MC		 1914 return 1;
1915 }
1916 }
38b051a1
TM		 1917
1918 if (RECORD_LAYER_processed_read_pending(&sc->rlayer))
49580f25
MC		 1919 return 1;
1920
38b051a1 1921 return RECORD_LAYER_read_pending(&sc->rlayer);
49580f25
MC		 1922}
1923
8c2bfd25 1924X509 *SSL_get1_peer_certificate(const SSL *s)
0f113f3e 1925{
8c2bfd25 1926 X509 *r = SSL_get0_peer_certificate(s);
d02b48c6 1927
8c2bfd25
TS		 1928 if (r != NULL)
1929 X509_up_ref(r);
0f113f3e 1930
26a7d938 1931 return r;
0f113f3e 1932}
d02b48c6 1933
8c2bfd25
TS		 1934X509 *SSL_get0_peer_certificate(const SSL *s)
1935{
38b051a1
TM		 1936 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1937
1938 if (sc == NULL)
1939 return NULL;
1940
1941 if (sc->session == NULL)
8c2bfd25
TS		 1942 return NULL;
1943 else
38b051a1 1944 return sc->session->peer;
8c2bfd25
TS		 1945}
1946
0821bcd4 1947STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
0f113f3e
MC		 1948{
1949 STACK_OF(X509) *r;
38b051a1 1950 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
0f113f3e 1951
38b051a1
TM		 1952 if (sc == NULL)
1953 return NULL;
1954
1955 if (sc->session == NULL)
0f113f3e
MC		 1956 r = NULL;
1957 else
38b051a1 1958 r = sc->session->peer_chain;
0f113f3e
MC		 1959
1960 /*
1961 * If we are a client, cert_chain includes the peer's own certificate; if
1962 * we are a server, it does not.
1963 */
1964
26a7d938 1965 return r;
0f113f3e
MC		 1966}
1967
1968/*
1969 * Now in theory, since the calling process own 't' it should be safe to
1970 * modify. We need to be able to read f without being hassled
1971 */
17dd65e6 1972int SSL_copy_session_id(SSL *t, const SSL *f)
0f113f3e 1973{
16203f7b 1974 int i;
38b051a1
TM		 1975 /* TODO(QUIC): Do we want to support this for QUIC connections? */
1976 SSL_CONNECTION *tsc = SSL_CONNECTION_FROM_SSL_ONLY(t);
1977 const SSL_CONNECTION *fsc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(f);
1978
1979 if (tsc == NULL || fsc == NULL)
1980 return 0;
1981
3e6a0d57 1982 /* Do we need to do SSL locking? */
61986d32 1983 if (!SSL_set_session(t, SSL_get_session(f))) {
17dd65e6 1984 return 0;
69f68237 1985 }
0f113f3e
MC		 1986
1987 /*
87d9cafa 1988 * what if we are setup for one protocol version but want to talk another
0f113f3e
MC		 1989 */
1990 if (t->method != f->method) {
38b051a1 1991 t->method->ssl_deinit(t);
919ba009 1992 t->method = f->method;
38b051a1 1993 if (t->method->ssl_init(t) == 0)
919ba009 1994 return 0;
0f113f3e
MC		 1995 }
1996
43a07d6d 1997 CRYPTO_UP_REF(&fsc->cert->references, &i);
38b051a1
TM		 1998 ssl_cert_free(tsc->cert);
1999 tsc->cert = fsc->cert;
2000 if (!SSL_set_session_id_context(t, fsc->sid_ctx, (int)fsc->sid_ctx_length)) {
17dd65e6 2001 return 0;
69f68237 2002 }
17dd65e6
MC		 2003
2004 return 1;
0f113f3e 2005}
d02b48c6 2006
58964a49 2007/* Fix this so it checks all the valid key/cert options */
0821bcd4 2008int SSL_CTX_check_private_key(const SSL_CTX *ctx)
0f113f3e 2009{
a230b26e 2010 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
6849b73c 2011 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
26a7d938 2012 return 0;
0f113f3e
MC		 2013 }
2014 if (ctx->cert->key->privatekey == NULL) {
6849b73c 2015 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
26a7d938 2016 return 0;
0f113f3e 2017 }
26a7d938
K		 2018 return X509_check_private_key
2019 (ctx->cert->key->x509, ctx->cert->key->privatekey);
0f113f3e 2020}
d02b48c6 2021
58964a49 2022/* Fix this function so that it takes an optional type parameter */
0821bcd4 2023int SSL_check_private_key(const SSL *ssl)
0f113f3e 2024{
38b051a1
TM		 2025 const SSL_CONNECTION *sc;
2026
2027 if ((sc = SSL_CONNECTION_FROM_CONST_SSL(ssl)) == NULL) {
6849b73c 2028 ERR_raise(ERR_LIB_SSL, ERR_R_PASSED_NULL_PARAMETER);
26a7d938 2029 return 0;
0f113f3e 2030 }
38b051a1 2031 if (sc->cert->key->x509 == NULL) {
6849b73c 2032 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
26a7d938 2033 return 0;
0f113f3e 2034 }
38b051a1 2035 if (sc->cert->key->privatekey == NULL) {
6849b73c 2036 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
26a7d938 2037 return 0;
0f113f3e 2038 }
38b051a1
TM		 2039 return X509_check_private_key(sc->cert->key->x509,
2040 sc->cert->key->privatekey);
0f113f3e 2041}
d02b48c6 2042
07bbc92c
MC		 2043int SSL_waiting_for_async(SSL *s)
2044{
38b051a1
TM		 2045 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2046
2047 if (sc == NULL)
2048 return 0;
2049
2050 if (sc->job)
82676094
MC		 2051 return 1;
2052
07bbc92c
MC		 2053 return 0;
2054}
2055
ff75a257 2056int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
f4da39d2 2057{
38b051a1
TM		 2058 ASYNC_WAIT_CTX *ctx;
2059 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
ff75a257 2060
38b051a1
TM		 2061 if (sc == NULL)
2062 return 0;
2063
2064 if ((ctx = sc->waitctx) == NULL)
ff75a257
MC		 2065 return 0;
2066 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
2067}
f4da39d2 2068
ff75a257
MC		 2069int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
2070 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
2071{
38b051a1
TM		 2072 ASYNC_WAIT_CTX *ctx;
2073 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
ff75a257 2074
38b051a1
TM		 2075 if (sc == NULL)
2076 return 0;
2077
2078 if ((ctx = sc->waitctx) == NULL)
ff75a257
MC		 2079 return 0;
2080 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
2081 numdelfds);
f4da39d2
MC		 2082}
2083
9f5a87fd
PY		 2084int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback)
2085{
2086 ctx->async_cb = callback;
2087 return 1;
2088}
2089
2090int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg)
2091{
2092 ctx->async_cb_arg = arg;
2093 return 1;
2094}
2095
2096int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback)
2097{
38b051a1
TM		 2098 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2099
2100 if (sc == NULL)
2101 return 0;
2102
2103 sc->async_cb = callback;
9f5a87fd
PY		 2104 return 1;
2105}
2106
2107int SSL_set_async_callback_arg(SSL *s, void *arg)
2108{
38b051a1
TM		 2109 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2110
2111 if (sc == NULL)
2112 return 0;
2113
2114 sc->async_cb_arg = arg;
9f5a87fd
PY		 2115 return 1;
2116}
2117
2118int SSL_get_async_status(SSL *s, int *status)
2119{
38b051a1
TM		 2120 ASYNC_WAIT_CTX *ctx;
2121 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
9f5a87fd 2122
38b051a1
TM		 2123 if (sc == NULL)
2124 return 0;
2125
2126 if ((ctx = sc->waitctx) == NULL)
9f5a87fd
PY		 2127 return 0;
2128 *status = ASYNC_WAIT_CTX_get_status(ctx);
2129 return 1;
2130}
2131
4f43d0e7 2132int SSL_accept(SSL *s)
0f113f3e 2133{
38b051a1 2134 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
03bacce8 2135
6d495cc4
HL		 2136#ifndef OPENSSL_NO_QUIC
2137 if (IS_QUIC(s))
03bacce8 2138 return s->method->ssl_accept(s);
6292519c 2139#endif
38b051a1
TM		 2140
2141 if (sc == NULL)
2142 return 0;
2143
2144 if (sc->handshake_func == NULL) {
0f113f3e
MC		 2145 /* Not properly initialized yet */
2146 SSL_set_accept_state(s);
07bbc92c 2147 }
add2f5ca
MC		 2148
2149 return SSL_do_handshake(s);
0f113f3e 2150}
d02b48c6 2151
4f43d0e7 2152int SSL_connect(SSL *s)
0f113f3e 2153{
38b051a1 2154 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
03bacce8 2155
6d495cc4
HL		 2156#ifndef OPENSSL_NO_QUIC
2157 if (IS_QUIC(s))
03bacce8 2158 return s->method->ssl_connect(s);
6292519c 2159#endif
38b051a1
TM		 2160
2161 if (sc == NULL)
2162 return 0;
2163
2164 if (sc->handshake_func == NULL) {
0f113f3e
MC		 2165 /* Not properly initialized yet */
2166 SSL_set_connect_state(s);
add2f5ca 2167 }
b31b04d9 2168
add2f5ca 2169 return SSL_do_handshake(s);
0f113f3e 2170}
d02b48c6 2171
0821bcd4 2172long SSL_get_default_timeout(const SSL *s)
0f113f3e 2173{
f0131dc0 2174 return (long int)ossl_time2seconds(s->method->get_timeout());
0f113f3e
MC		 2175}
2176
9f5a87fd
PY		 2177static int ssl_async_wait_ctx_cb(void *arg)
2178{
2179 SSL *s = (SSL *)arg;
38b051a1 2180 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
9f5a87fd 2181
38b051a1
TM		 2182 if (sc == NULL)
2183 return 0;
2184
2185 return sc->async_cb(s, sc->async_cb_arg);
9f5a87fd
PY		 2186}
2187
7fecbf6f 2188static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
a230b26e
EK		 2189 int (*func) (void *))
2190{
add2f5ca 2191 int ret;
38b051a1
TM		 2192 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2193
2194 if (sc == NULL)
2195 return 0;
2196
2197 if (sc->waitctx == NULL) {
2198 sc->waitctx = ASYNC_WAIT_CTX_new();
2199 if (sc->waitctx == NULL)
ff75a257 2200 return -1;
38b051a1 2201 if (sc->async_cb != NULL
9f5a87fd 2202 && !ASYNC_WAIT_CTX_set_callback
38b051a1 2203 (sc->waitctx, ssl_async_wait_ctx_cb, s))
9f5a87fd 2204 return -1;
ff75a257 2205 }
07f620e3 2206
38b051a1
TM		 2207 sc->rwstate = SSL_NOTHING;
2208 switch (ASYNC_start_job(&sc->job, sc->waitctx, &ret, func, args,
a230b26e 2209 sizeof(struct ssl_async_args))) {
add2f5ca 2210 case ASYNC_ERR:
38b051a1 2211 sc->rwstate = SSL_NOTHING;
6849b73c 2212 ERR_raise(ERR_LIB_SSL, SSL_R_FAILED_TO_INIT_ASYNC);
add2f5ca
MC		 2213 return -1;
2214 case ASYNC_PAUSE:
38b051a1 2215 sc->rwstate = SSL_ASYNC_PAUSED;
add2f5ca 2216 return -1;
fc7f190c 2217 case ASYNC_NO_JOBS:
38b051a1 2218 sc->rwstate = SSL_ASYNC_NO_JOBS;
fc7f190c 2219 return -1;
add2f5ca 2220 case ASYNC_FINISH:
38b051a1 2221 sc->job = NULL;
add2f5ca
MC		 2222 return ret;
2223 default:
38b051a1 2224 sc->rwstate = SSL_NOTHING;
6849b73c 2225 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
add2f5ca
MC		 2226 /* Shouldn't happen */
2227 return -1;
2228 }
2229}
07bbc92c 2230
add2f5ca 2231static int ssl_io_intern(void *vargs)
07bbc92c
MC		 2232{
2233 struct ssl_async_args *args;
2234 SSL *s;
2235 void *buf;
348240c6 2236 size_t num;
38b051a1 2237 SSL_CONNECTION *sc;
07bbc92c
MC		 2238
2239 args = (struct ssl_async_args *)vargs;
2240 s = args->s;
2241 buf = args->buf;
2242 num = args->num;
38b051a1
TM		 2243 if ((sc = SSL_CONNECTION_FROM_SSL(s)) == NULL)
2244 return -1;
2245
ec447924
MC		 2246 switch (args->type) {
2247 case READFUNC:
38b051a1 2248 return args->f.func_read(s, buf, num, &sc->asyncrw);
ec447924 2249 case WRITEFUNC:
38b051a1 2250 return args->f.func_write(s, buf, num, &sc->asyncrw);
ec447924
MC		 2251 case OTHERFUNC:
2252 return args->f.func_other(s);
2253 }
2254 return -1;
07bbc92c
MC		 2255}
2256
4ee7d3f9 2257int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
0f113f3e 2258{
38b051a1 2259 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
03bacce8 2260
6d495cc4
HL		 2261#ifndef OPENSSL_NO_QUIC
2262 if (IS_QUIC(s))
03bacce8 2263 return s->method->ssl_read(s, buf, num, readbytes);
6292519c 2264#endif
38b051a1
TM		 2265
2266 if (sc == NULL)
2267 return -1;
2268
2269 if (sc->handshake_func == NULL) {
6849b73c 2270 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
0f113f3e
MC		 2271 return -1;
2272 }
2273
38b051a1
TM		 2274 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2275 sc->rwstate = SSL_NOTHING;
4ee7d3f9 2276 return 0;
0f113f3e 2277 }
07bbc92c 2278
38b051a1
TM		 2279 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2280 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
6849b73c 2281 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
0a5ece5b
MC		 2282 return 0;
2283 }
564547e4
MC		 2284 /*
2285 * If we are a client and haven't received the ServerHello etc then we
2286 * better do that
2287 */
38b051a1 2288 ossl_statem_check_finish_init(sc, 0);
0a5ece5b 2289
38b051a1 2290 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
add2f5ca 2291 struct ssl_async_args args;
eda75751 2292 int ret;
add2f5ca
MC		 2293
2294 args.s = s;
2295 args.buf = buf;
2296 args.num = num;
ec447924
MC		 2297 args.type = READFUNC;
2298 args.f.func_read = s->method->ssl_read;
add2f5ca 2299
eda75751 2300 ret = ssl_start_async_job(s, &args, ssl_io_intern);
38b051a1 2301 *readbytes = sc->asyncrw;
eda75751 2302 return ret;
07bbc92c 2303 } else {
54105ddd 2304 return s->method->ssl_read(s, buf, num, readbytes);
07bbc92c 2305 }
0f113f3e
MC		 2306}
2307
4ee7d3f9 2308int SSL_read(SSL *s, void *buf, int num)
eda75751
MC		 2309{
2310 int ret;
54105ddd 2311 size_t readbytes;
eda75751
MC		 2312
2313 if (num < 0) {
6849b73c 2314 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
eda75751
MC		 2315 return -1;
2316 }
2317
4ee7d3f9 2318 ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
eda75751
MC		 2319
2320 /*
2321 * The cast is safe here because ret should be <= INT_MAX because num is
2322 * <= INT_MAX
2323 */
2324 if (ret > 0)
54105ddd 2325 ret = (int)readbytes;
eda75751
MC		 2326
2327 return ret;
2328}
2329
4ee7d3f9
KR		 2330int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2331{
2332 int ret = ssl_read_internal(s, buf, num, readbytes);
2333
2334 if (ret < 0)
2335 ret = 0;
2336 return ret;
2337}
2338
f533fbd4 2339int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
d781d247
MC		 2340{
2341 int ret;
38b051a1
TM		 2342 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2343
2344 /* TODO(QUIC): This will need special handling for QUIC */
2345 if (sc == NULL)
2346 return 0;
d781d247 2347
38b051a1 2348 if (!sc->server) {
6849b73c 2349 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
f533fbd4 2350 return SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 2351 }
2352
38b051a1 2353 switch (sc->early_data_state) {
d781d247
MC		 2354 case SSL_EARLY_DATA_NONE:
2355 if (!SSL_in_before(s)) {
6849b73c 2356 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
f533fbd4 2357 return SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 2358 }
2359 /* fall through */
2360
2361 case SSL_EARLY_DATA_ACCEPT_RETRY:
38b051a1 2362 sc->early_data_state = SSL_EARLY_DATA_ACCEPTING;
d781d247
MC		 2363 ret = SSL_accept(s);
2364 if (ret <= 0) {
2365 /* NBIO or error */
38b051a1 2366 sc->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
f533fbd4 2367 return SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 2368 }
2369 /* fall through */
2370
2371 case SSL_EARLY_DATA_READ_RETRY:
38b051a1
TM		 2372 if (sc->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
2373 sc->early_data_state = SSL_EARLY_DATA_READING;
d781d247
MC		 2374 ret = SSL_read_ex(s, buf, num, readbytes);
2375 /*
ef6c191b
MC		 2376 * State machine will update early_data_state to
2377 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
2378 * message
d781d247 2379 */
38b051a1 2380 if (ret > 0 || (ret <= 0 && sc->early_data_state
d781d247 2381 != SSL_EARLY_DATA_FINISHED_READING)) {
38b051a1 2382 sc->early_data_state = SSL_EARLY_DATA_READ_RETRY;
f533fbd4
MC		 2383 return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
2384 : SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 2385 }
2386 } else {
38b051a1 2387 sc->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
d781d247
MC		 2388 }
2389 *readbytes = 0;
f533fbd4 2390 return SSL_READ_EARLY_DATA_FINISH;
d781d247
MC		 2391
2392 default:
6849b73c 2393 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
f533fbd4 2394 return SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 2395 }
2396}
2397
f5b519c4 2398int SSL_get_early_data_status(const SSL *s)
1ea4d09a 2399{
38b051a1
TM		 2400 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
2401
2402 /* TODO(QUIC): This will need special handling for QUIC */
2403 if (sc == NULL)
2404 return 0;
2405
2406 return sc->ext.early_data;
1ea4d09a
MC		 2407}
2408
4ee7d3f9 2409static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
0f113f3e 2410{
38b051a1 2411 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
03bacce8 2412
6d495cc4
HL		 2413#ifndef OPENSSL_NO_QUIC
2414 if (IS_QUIC(s))
03bacce8 2415 return s->method->ssl_peek(s, buf, num, readbytes);
6292519c 2416#endif
38b051a1
TM		 2417
2418 if (sc == NULL)
2419 return 0;
2420
2421 if (sc->handshake_func == NULL) {
6849b73c 2422 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
0f113f3e
MC		 2423 return -1;
2424 }
2425
38b051a1 2426 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
4ee7d3f9 2427 return 0;
0f113f3e 2428 }
38b051a1 2429 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
add2f5ca 2430 struct ssl_async_args args;
eda75751 2431 int ret;
0f113f3e 2432
add2f5ca
MC		 2433 args.s = s;
2434 args.buf = buf;
2435 args.num = num;
ec447924
MC		 2436 args.type = READFUNC;
2437 args.f.func_read = s->method->ssl_peek;
07bbc92c 2438
eda75751 2439 ret = ssl_start_async_job(s, &args, ssl_io_intern);
38b051a1 2440 *readbytes = sc->asyncrw;
eda75751 2441 return ret;
add2f5ca 2442 } else {
54105ddd 2443 return s->method->ssl_peek(s, buf, num, readbytes);
add2f5ca 2444 }
07bbc92c
MC		 2445}
2446
4ee7d3f9 2447int SSL_peek(SSL *s, void *buf, int num)
7ee8627f
MC		 2448{
2449 int ret;
4ee7d3f9 2450 size_t readbytes;
7ee8627f
MC		 2451
2452 if (num < 0) {
6849b73c 2453 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
7ee8627f
MC		 2454 return -1;
2455 }
2456
4ee7d3f9 2457 ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
7ee8627f
MC		 2458
2459 /*
2460 * The cast is safe here because ret should be <= INT_MAX because num is
2461 * <= INT_MAX
2462 */
2463 if (ret > 0)
4ee7d3f9 2464 ret = (int)readbytes;
7ee8627f
MC		 2465
2466 return ret;
2467}
2468
4ee7d3f9
KR		 2469
2470int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2471{
2472 int ret = ssl_peek_internal(s, buf, num, readbytes);
2473
2474 if (ret < 0)
2475 ret = 0;
2476 return ret;
2477}
2478
2479int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written)
0f113f3e 2480{
38b051a1 2481 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
03bacce8 2482
6d495cc4
HL		 2483#ifndef OPENSSL_NO_QUIC
2484 if (IS_QUIC(s))
03bacce8 2485 return s->method->ssl_write(s, buf, num, written);
6292519c 2486#endif
38b051a1
TM		 2487
2488 if (sc == NULL)
2489 return 0;
2490
2491 if (sc->handshake_func == NULL) {
6849b73c 2492 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
0f113f3e
MC		 2493 return -1;
2494 }
2495
38b051a1
TM		 2496 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2497 sc->rwstate = SSL_NOTHING;
6849b73c 2498 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
4ee7d3f9 2499 return -1;
0f113f3e 2500 }
07bbc92c 2501
38b051a1
TM		 2502 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2503 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
2504 || sc->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
6849b73c 2505 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
49e7fe12 2506 return 0;
0a5ece5b 2507 }
564547e4 2508 /* If we are a client and haven't sent the Finished we better do that */
38b051a1 2509 ossl_statem_check_finish_init(sc, 1);
49e7fe12 2510
38b051a1 2511 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
7ee8627f 2512 int ret;
add2f5ca
MC		 2513 struct ssl_async_args args;
2514
2515 args.s = s;
2516 args.buf = (void *)buf;
2517 args.num = num;
ec447924
MC		 2518 args.type = WRITEFUNC;
2519 args.f.func_write = s->method->ssl_write;
add2f5ca 2520
7ee8627f 2521 ret = ssl_start_async_job(s, &args, ssl_io_intern);
38b051a1 2522 *written = sc->asyncrw;
7ee8627f 2523 return ret;
07bbc92c 2524 } else {
7ee8627f 2525 return s->method->ssl_write(s, buf, num, written);
07bbc92c 2526 }
0f113f3e 2527}
d02b48c6 2528
7c3a7561
BP		 2529ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size, int flags)
2530{
2531 ossl_ssize_t ret;
38b051a1 2532 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7c3a7561 2533
38b051a1
TM		 2534 if (sc == NULL)
2535 return 0;
2536
2537 if (sc->handshake_func == NULL) {
6849b73c 2538 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
7c3a7561
BP		 2539 return -1;
2540 }
2541
38b051a1
TM		 2542 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2543 sc->rwstate = SSL_NOTHING;
6849b73c 2544 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
7c3a7561
BP		 2545 return -1;
2546 }
2547
38b051a1 2548 if (!BIO_get_ktls_send(sc->wbio)) {
6849b73c 2549 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
7c3a7561
BP		 2550 return -1;
2551 }
2552
2553 /* If we have an alert to send, lets send it */
73243502 2554 if (sc->s3.alert_dispatch > 0) {
7c3a7561
BP		 2555 ret = (ossl_ssize_t)s->method->ssl_dispatch_alert(s);
2556 if (ret <= 0) {
2557 /* SSLfatal() already called if appropriate */
2558 return ret;
2559 }
2560 /* if it went, fall through and send more stuff */
2561 }
2562
38b051a1
TM		 2563 sc->rwstate = SSL_WRITING;
2564 if (BIO_flush(sc->wbio) <= 0) {
2565 if (!BIO_should_retry(sc->wbio)) {
2566 sc->rwstate = SSL_NOTHING;
7c3a7561
BP		 2567 } else {
2568#ifdef EAGAIN
2569 set_sys_error(EAGAIN);
2570#endif
2571 }
2572 return -1;
2573 }
2574
712c0942 2575#ifdef OPENSSL_NO_KTLS
fa7a8074
RL		 2576 ERR_raise_data(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR,
2577 "can't call ktls_sendfile(), ktls disabled");
712c0942 2578 return -1;
7c3a7561 2579#else
712c0942 2580 ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags);
7c3a7561
BP		 2581 if (ret < 0) {
2582#if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2583 if ((get_last_sys_error() == EAGAIN) ||
2584 (get_last_sys_error() == EINTR) ||
2585 (get_last_sys_error() == EBUSY))
38b051a1 2586 BIO_set_retry_write(sc->wbio);
7c3a7561
BP		 2587 else
2588#endif
6849b73c 2589 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
7c3a7561
BP		 2590 return ret;
2591 }
38b051a1 2592 sc->rwstate = SSL_NOTHING;
7c3a7561 2593 return ret;
712c0942 2594#endif
7c3a7561
BP		 2595}
2596
4ee7d3f9
KR		 2597int SSL_write(SSL *s, const void *buf, int num)
2598{
2599 int ret;
2600 size_t written;
2601
2602 if (num < 0) {
6849b73c 2603 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
4ee7d3f9
KR		 2604 return -1;
2605 }
2606
2607 ret = ssl_write_internal(s, buf, (size_t)num, &written);
2608
2609 /*
2610 * The cast is safe here because ret should be <= INT_MAX because num is
2611 * <= INT_MAX
2612 */
2613 if (ret > 0)
2614 ret = (int)written;
2615
2616 return ret;
2617}
2618
2619int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
2620{
2621 int ret = ssl_write_internal(s, buf, num, written);
2622
2623 if (ret < 0)
2624 ret = 0;
2625 return ret;
2626}
2627
0665b4ed 2628int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
49e7fe12 2629{
a0cb628b 2630 int ret, early_data_state;
2a8db717 2631 size_t writtmp;
f7414b08 2632 uint32_t partialwrite;
38b051a1
TM		 2633 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2634
2635 /* TODO(QUIC): This will need special handling for QUIC */
2636 if (sc == NULL)
2637 return 0;
49e7fe12 2638
38b051a1 2639 switch (sc->early_data_state) {
49e7fe12 2640 case SSL_EARLY_DATA_NONE:
38b051a1 2641 if (sc->server
09f28874 2642 || !SSL_in_before(s)
38b051a1
TM		 2643 || ((sc->session == NULL || sc->session->ext.max_early_data == 0)
2644 && (sc->psk_use_session_cb == NULL))) {
6849b73c 2645 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
49e7fe12
MC		 2646 return 0;
2647 }
2648 /* fall through */
2649
2650 case SSL_EARLY_DATA_CONNECT_RETRY:
38b051a1 2651 sc->early_data_state = SSL_EARLY_DATA_CONNECTING;
49e7fe12
MC		 2652 ret = SSL_connect(s);
2653 if (ret <= 0) {
2654 /* NBIO or error */
38b051a1 2655 sc->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
49e7fe12
MC		 2656 return 0;
2657 }
2658 /* fall through */
2659
2660 case SSL_EARLY_DATA_WRITE_RETRY:
38b051a1 2661 sc->early_data_state = SSL_EARLY_DATA_WRITING;
f7414b08
MC		 2662 /*
2663 * We disable partial write for early data because we don't keep track
2664 * of how many bytes we've written between the SSL_write_ex() call and
2665 * the flush if the flush needs to be retried)
2666 */
38b051a1
TM		 2667 partialwrite = sc->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
2668 sc->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
2a8db717 2669 ret = SSL_write_ex(s, buf, num, &writtmp);
38b051a1 2670 sc->mode |= partialwrite;
2a8db717 2671 if (!ret) {
38b051a1 2672 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2a8db717
MC		 2673 return ret;
2674 }
38b051a1 2675 sc->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
2a8db717
MC		 2676 /* fall through */
2677
2678 case SSL_EARLY_DATA_WRITE_FLUSH:
2679 /* The buffering BIO is still in place so we need to flush it */
38b051a1 2680 if (statem_flush(sc) != 1)
2a8db717 2681 return 0;
2a8db717 2682 *written = num;
38b051a1 2683 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2a8db717 2684 return 1;
49e7fe12 2685
116d0da5 2686 case SSL_EARLY_DATA_FINISHED_READING:
a0cb628b 2687 case SSL_EARLY_DATA_READ_RETRY:
38b051a1 2688 early_data_state = sc->early_data_state;
09f28874 2689 /* We are a server writing to an unauthenticated client */
38b051a1 2690 sc->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
09f28874 2691 ret = SSL_write_ex(s, buf, num, written);
5fe37157
MC		 2692 /* The buffering BIO is still in place */
2693 if (ret)
38b051a1
TM		 2694 (void)BIO_flush(sc->wbio);
2695 sc->early_data_state = early_data_state;
09f28874
MC		 2696 return ret;
2697
49e7fe12 2698 default:
6849b73c 2699 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
49e7fe12
MC		 2700 return 0;
2701 }
2702}
2703
4f43d0e7 2704int SSL_shutdown(SSL *s)
0f113f3e
MC		 2705{
2706 /*
2707 * Note that this function behaves differently from what one might
2708 * expect. Return values are 0 for no success (yet), 1 for success; but
2709 * calling it once is usually not enough, even if blocking I/O is used
2710 * (see ssl3_shutdown).
2711 */
38b051a1 2712 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
e8043229 2713
22b1a96f
HL		 2714#ifndef OPENSSL_NO_QUIC
2715 if (IS_QUIC(s))
6d495cc4 2716 return ossl_quic_conn_shutdown(s, 0, NULL, 0);
e8043229 2717#endif
0f113f3e 2718
38b051a1
TM		 2719 if (sc == NULL)
2720 return -1;
2721
2722 if (sc->handshake_func == NULL) {
6849b73c 2723 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
0f113f3e
MC		 2724 return -1;
2725 }
2726
64f9f406 2727 if (!SSL_in_init(s)) {
38b051a1 2728 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
64f9f406 2729 struct ssl_async_args args;
ec447924 2730
09134f18 2731 memset(&args, 0, sizeof(args));
64f9f406
MC		 2732 args.s = s;
2733 args.type = OTHERFUNC;
2734 args.f.func_other = s->method->ssl_shutdown;
ec447924 2735
64f9f406
MC		 2736 return ssl_start_async_job(s, &args, ssl_io_intern);
2737 } else {
2738 return s->method->ssl_shutdown(s);
2739 }
ec447924 2740 } else {
6849b73c 2741 ERR_raise(ERR_LIB_SSL, SSL_R_SHUTDOWN_WHILE_IN_INIT);
64f9f406 2742 return -1;
ec447924 2743 }
0f113f3e 2744}
d02b48c6 2745
4fbfe86a 2746int SSL_key_update(SSL *s, int updatetype)
44c04a2e 2747{
38b051a1
TM		 2748 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2749
2525109f
HL		 2750#ifndef OPENSSL_NO_QUIC
2751 if (IS_QUIC(s))
2752 return ossl_quic_key_update(s, updatetype);
2753#endif
2754
38b051a1
TM		 2755 if (sc == NULL)
2756 return 0;
2757
2758 if (!SSL_CONNECTION_IS_TLS13(sc)) {
6849b73c 2759 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
44c04a2e
MC		 2760 return 0;
2761 }
2762
2763 if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
2764 && updatetype != SSL_KEY_UPDATE_REQUESTED) {
6849b73c 2765 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_KEY_UPDATE_TYPE);
44c04a2e
MC		 2766 return 0;
2767 }
2768
2769 if (!SSL_is_init_finished(s)) {
6849b73c 2770 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
44c04a2e
MC		 2771 return 0;
2772 }
2773
38b051a1 2774 if (RECORD_LAYER_write_pending(&sc->rlayer)) {
3bec4851
MC		 2775 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_WRITE_RETRY);
2776 return 0;
2777 }
2778
38b051a1
TM		 2779 ossl_statem_set_in_init(sc, 1);
2780 sc->key_update = updatetype;
44c04a2e
MC		 2781 return 1;
2782}
2783
3499327b 2784int SSL_get_key_update_type(const SSL *s)
53d1d07d 2785{
38b051a1
TM		 2786 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
2787
2525109f
HL		 2788#ifndef OPENSSL_NO_QUIC
2789 if (IS_QUIC(s))
2790 return ossl_quic_get_key_update_type(s);
2791#endif
2792
38b051a1
TM		 2793 if (sc == NULL)
2794 return 0;
2795
2796 return sc->key_update;
53d1d07d
MC		 2797}
2798
55373bfd
RS		 2799/*
2800 * Can we accept a renegotiation request? If yes, set the flag and
2801 * return 1 if yes. If not, raise error and return 0.
2802 */
38b051a1 2803static int can_renegotiate(const SSL_CONNECTION *sc)
0f113f3e 2804{
38b051a1 2805 if (SSL_CONNECTION_IS_TLS13(sc)) {
6849b73c 2806 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2c0980d2 2807 return 0;
44c04a2e 2808 }
cda6b998 2809
38b051a1 2810 if ((sc->options & SSL_OP_NO_RENEGOTIATION) != 0) {
6849b73c 2811 ERR_raise(ERR_LIB_SSL, SSL_R_NO_RENEGOTIATION);
db0f35dd
TS		 2812 return 0;
2813 }
44959ee4 2814
55373bfd
RS		 2815 return 1;
2816}
2817
2818int SSL_renegotiate(SSL *s)
2819{
38b051a1
TM		 2820 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2821
2822 if (sc == NULL)
55373bfd
RS		 2823 return 0;
2824
38b051a1
TM		 2825 if (!can_renegotiate(sc))
2826 return 0;
2827
2828 sc->renegotiate = 1;
2829 sc->new_session = 1;
26a7d938 2830 return s->method->ssl_renegotiate(s);
0f113f3e 2831}
d02b48c6 2832
44959ee4 2833int SSL_renegotiate_abbreviated(SSL *s)
0f113f3e 2834{
38b051a1
TM		 2835 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2836
2837 if (sc == NULL)
2838 return 0;
2839
2840 if (!can_renegotiate(sc))
2c0980d2 2841 return 0;
c519e89f 2842
38b051a1
TM		 2843 sc->renegotiate = 1;
2844 sc->new_session = 0;
26a7d938 2845 return s->method->ssl_renegotiate(s);
0f113f3e 2846}
44959ee4 2847
3499327b 2848int SSL_renegotiate_pending(const SSL *s)
0f113f3e 2849{
38b051a1
TM		 2850 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2851
2852 if (sc == NULL)
2853 return 0;
2854
0f113f3e
MC		 2855 /*
2856 * becomes true when negotiation is requested; false again once a
2857 * handshake has finished
2858 */
38b051a1 2859 return (sc->renegotiate != 0);
0f113f3e
MC		 2860}
2861
3bfacb5f
BK		 2862int SSL_new_session_ticket(SSL *s)
2863{
38b051a1
TM		 2864 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2865
2866 if (sc == NULL)
2867 return 0;
2868
7c73fefe 2869 /* If we are in init because we're sending tickets, okay to send more. */
38b051a1
TM		 2870 if ((SSL_in_init(s) && sc->ext.extra_tickets_expected == 0)
2871 || SSL_IS_FIRST_HANDSHAKE(sc) || !sc->server
2872 || !SSL_CONNECTION_IS_TLS13(sc))
35774d55 2873 return 0;
38b051a1
TM		 2874 sc->ext.extra_tickets_expected++;
2875 if (!RECORD_LAYER_write_pending(&sc->rlayer) && !SSL_in_init(s))
2876 ossl_statem_set_in_init(sc, 1);
35774d55 2877 return 1;
3bfacb5f
BK		 2878}
2879
0f113f3e
MC		 2880long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
2881{
2882 long l;
38b051a1
TM		 2883 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2884
2885 /* TODO(QUIC): Special handling for some ctrls will be needed */
2886 if (sc == NULL)
2887 return 0;
0f113f3e
MC		 2888
2889 switch (cmd) {
2890 case SSL_CTRL_GET_READ_AHEAD:
d0638fd5
HL		 2891 if (IS_QUIC_SSL(s))
2892 return 0;
38b051a1 2893 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
0f113f3e 2894 case SSL_CTRL_SET_READ_AHEAD:
d0638fd5
HL		 2895 if (IS_QUIC_SSL(s))
2896 return 0;
38b051a1
TM		 2897 l = RECORD_LAYER_get_read_ahead(&sc->rlayer);
2898 RECORD_LAYER_set_read_ahead(&sc->rlayer, larg);
26a7d938 2899 return l;
0f113f3e 2900
0f113f3e 2901 case SSL_CTRL_MODE:
4566dae7
MC		 2902 {
2903 OSSL_PARAM options[2], *opts = options;
2904
2905 sc->mode |= larg;
2906
2907 *opts++ = OSSL_PARAM_construct_uint32(OSSL_LIBSSL_RECORD_LAYER_PARAM_MODE,
2908 &sc->mode);
2909 *opts = OSSL_PARAM_construct_end();
2910
2911 /* Ignore return value */
2912 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
2913
2914 return sc->mode;
2915 }
0f113f3e 2916 case SSL_CTRL_CLEAR_MODE:
38b051a1 2917 return (sc->mode &= ~larg);
0f113f3e 2918 case SSL_CTRL_GET_MAX_CERT_LIST:
38b051a1 2919 return (long)sc->max_cert_list;
0f113f3e 2920 case SSL_CTRL_SET_MAX_CERT_LIST:
348240c6
MC		 2921 if (larg < 0)
2922 return 0;
38b051a1
TM		 2923 l = (long)sc->max_cert_list;
2924 sc->max_cert_list = (size_t)larg;
348240c6 2925 return l;
0f113f3e
MC		 2926 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2927 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2928 return 0;
50ec7505 2929#ifndef OPENSSL_NO_KTLS
38b051a1 2930 if (sc->wbio != NULL && BIO_get_ktls_send(sc->wbio))
50ec7505
BP		 2931 return 0;
2932#endif /* OPENSSL_NO_KTLS */
38b051a1
TM		 2933 sc->max_send_fragment = larg;
2934 if (sc->max_send_fragment < sc->split_send_fragment)
2935 sc->split_send_fragment = sc->max_send_fragment;
435d88d7 2936 sc->rlayer.wrlmethod->set_max_frag_len(sc->rlayer.wrl, larg);
d102d9df
MC		 2937 return 1;
2938 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
38b051a1 2939 if ((size_t)larg > sc->max_send_fragment || larg == 0)
d102d9df 2940 return 0;
38b051a1 2941 sc->split_send_fragment = larg;
0f113f3e 2942 return 1;
d102d9df
MC		 2943 case SSL_CTRL_SET_MAX_PIPELINES:
2944 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2945 return 0;
38b051a1 2946 sc->max_pipelines = larg;
cffafb5f
MC		 2947 if (sc->rlayer.rrlmethod->set_max_pipelines != NULL)
2948 sc->rlayer.rrlmethod->set_max_pipelines(sc->rlayer.rrl, (size_t)larg);
07077415 2949 return 1;
0f113f3e 2950 case SSL_CTRL_GET_RI_SUPPORT:
38b051a1 2951 return sc->s3.send_connection_binding;
dfb39f73 2952 case SSL_CTRL_SET_RETRY_VERIFY:
38b051a1 2953 sc->rwstate = SSL_RETRY_VERIFY;
dfb39f73 2954 return 1;
0f113f3e 2955 case SSL_CTRL_CERT_FLAGS:
38b051a1 2956 return (sc->cert->cert_flags |= larg);
0f113f3e 2957 case SSL_CTRL_CLEAR_CERT_FLAGS:
38b051a1 2958 return (sc->cert->cert_flags &= ~larg);
0f113f3e
MC		 2959
2960 case SSL_CTRL_GET_RAW_CIPHERLIST:
2961 if (parg) {
38b051a1 2962 if (sc->s3.tmp.ciphers_raw == NULL)
0f113f3e 2963 return 0;
38b051a1
TM		 2964 *(unsigned char **)parg = sc->s3.tmp.ciphers_raw;
2965 return (int)sc->s3.tmp.ciphers_rawlen;
e9fa092e
EK		 2966 } else {
2967 return TLS_CIPHER_LEN;
2968 }
c5364614 2969 case SSL_CTRL_GET_EXTMS_SUPPORT:
38b051a1 2970 if (!sc->session || SSL_in_init(s) || ossl_statem_get_in_handshake(sc))
a230b26e 2971 return -1;
38b051a1 2972 if (sc->session->flags & SSL_SESS_FLAG_EXTMS)
c5364614
DSH		 2973 return 1;
2974 else
2975 return 0;
7946ab33 2976 case SSL_CTRL_SET_MIN_PROTO_VERSION:
38b051a1 2977 return ssl_check_allowed_versions(larg, sc->max_proto_version)
a7f41885 2978 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
38b051a1 2979 &sc->min_proto_version);
3edabd3c 2980 case SSL_CTRL_GET_MIN_PROTO_VERSION:
38b051a1 2981 return sc->min_proto_version;
7946ab33 2982 case SSL_CTRL_SET_MAX_PROTO_VERSION:
38b051a1 2983 return ssl_check_allowed_versions(sc->min_proto_version, larg)
a7f41885 2984 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
38b051a1 2985 &sc->max_proto_version);
3edabd3c 2986 case SSL_CTRL_GET_MAX_PROTO_VERSION:
38b051a1 2987 return sc->max_proto_version;
0f113f3e 2988 default:
26a7d938 2989 return s->method->ssl_ctrl(s, cmd, larg, parg);
0f113f3e
MC		 2990 }
2991}
2992
2993long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
2994{
63dfde87 2995 return s->method->ssl_callback_ctrl(s, cmd, fp);
0f113f3e 2996}
d3442bc7 2997
3c1d6bbc 2998LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
0f113f3e
MC		 2999{
3000 return ctx->sessions;
3001}
3002
acce0557
P		 3003static int ssl_tsan_load(SSL_CTX *ctx, TSAN_QUALIFIER int *stat)
3004{
3005 int res = 0;
3006
3007 if (ssl_tsan_lock(ctx)) {
3008 res = tsan_load(stat);
3009 ssl_tsan_unlock(ctx);
3010 }
3011 return res;
3012}
3013
0f113f3e
MC		 3014long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
3015{
3016 long l;
3017 /* For some cases with ctx == NULL perform syntax checks */
3018 if (ctx == NULL) {
3019 switch (cmd) {
de4d764e 3020 case SSL_CTRL_SET_GROUPS_LIST:
260009d8 3021 return tls1_set_groups_list(ctx, NULL, NULL, parg);
0f113f3e
MC		 3022 case SSL_CTRL_SET_SIGALGS_LIST:
3023 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
3024 return tls1_set_sigalgs_list(NULL, parg, 0);
3025 default:
3026 return 0;
3027 }
3028 }
3029
3030 switch (cmd) {
3031 case SSL_CTRL_GET_READ_AHEAD:
26a7d938 3032 return ctx->read_ahead;
0f113f3e
MC		 3033 case SSL_CTRL_SET_READ_AHEAD:
3034 l = ctx->read_ahead;
3035 ctx->read_ahead = larg;
26a7d938 3036 return l;
0f113f3e
MC		 3037
3038 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
3039 ctx->msg_callback_arg = parg;
3040 return 1;
3041
3042 case SSL_CTRL_GET_MAX_CERT_LIST:
26a7d938 3043 return (long)ctx->max_cert_list;
0f113f3e 3044 case SSL_CTRL_SET_MAX_CERT_LIST:
348240c6
MC		 3045 if (larg < 0)
3046 return 0;
3047 l = (long)ctx->max_cert_list;
3048 ctx->max_cert_list = (size_t)larg;
3049 return l;
0f113f3e
MC		 3050
3051 case SSL_CTRL_SET_SESS_CACHE_SIZE:
348240c6
MC		 3052 if (larg < 0)
3053 return 0;
3054 l = (long)ctx->session_cache_size;
3055 ctx->session_cache_size = (size_t)larg;
3056 return l;
0f113f3e 3057 case SSL_CTRL_GET_SESS_CACHE_SIZE:
26a7d938 3058 return (long)ctx->session_cache_size;
0f113f3e
MC		 3059 case SSL_CTRL_SET_SESS_CACHE_MODE:
3060 l = ctx->session_cache_mode;
3061 ctx->session_cache_mode = larg;
26a7d938 3062 return l;
0f113f3e 3063 case SSL_CTRL_GET_SESS_CACHE_MODE:
26a7d938 3064 return ctx->session_cache_mode;
0f113f3e
MC		 3065
3066 case SSL_CTRL_SESS_NUMBER:
26a7d938 3067 return lh_SSL_SESSION_num_items(ctx->sessions);
0f113f3e 3068 case SSL_CTRL_SESS_CONNECT:
acce0557 3069 return ssl_tsan_load(ctx, &ctx->stats.sess_connect);
0f113f3e 3070 case SSL_CTRL_SESS_CONNECT_GOOD:
acce0557 3071 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_good);
0f113f3e 3072 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
acce0557 3073 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_renegotiate);
0f113f3e 3074 case SSL_CTRL_SESS_ACCEPT:
acce0557 3075 return ssl_tsan_load(ctx, &ctx->stats.sess_accept);
0f113f3e 3076 case SSL_CTRL_SESS_ACCEPT_GOOD:
acce0557 3077 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_good);
0f113f3e 3078 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
acce0557 3079 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_renegotiate);
0f113f3e 3080 case SSL_CTRL_SESS_HIT:
acce0557 3081 return ssl_tsan_load(ctx, &ctx->stats.sess_hit);
0f113f3e 3082 case SSL_CTRL_SESS_CB_HIT:
acce0557 3083 return ssl_tsan_load(ctx, &ctx->stats.sess_cb_hit);
0f113f3e 3084 case SSL_CTRL_SESS_MISSES:
acce0557 3085 return ssl_tsan_load(ctx, &ctx->stats.sess_miss);
0f113f3e 3086 case SSL_CTRL_SESS_TIMEOUTS:
acce0557 3087 return ssl_tsan_load(ctx, &ctx->stats.sess_timeout);
0f113f3e 3088 case SSL_CTRL_SESS_CACHE_FULL:
acce0557 3089 return ssl_tsan_load(ctx, &ctx->stats.sess_cache_full);
0f113f3e
MC		 3090 case SSL_CTRL_MODE:
3091 return (ctx->mode |= larg);
3092 case SSL_CTRL_CLEAR_MODE:
3093 return (ctx->mode &= ~larg);
3094 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
3095 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
3096 return 0;
3097 ctx->max_send_fragment = larg;
d102d9df 3098 if (ctx->max_send_fragment < ctx->split_send_fragment)
bfb155c1 3099 ctx->split_send_fragment = ctx->max_send_fragment;
0f113f3e 3100 return 1;
d102d9df 3101 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
7ee8627f 3102 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
d102d9df
MC		 3103 return 0;
3104 ctx->split_send_fragment = larg;
3105 return 1;
3106 case SSL_CTRL_SET_MAX_PIPELINES:
3107 if (larg < 1 || larg > SSL_MAX_PIPELINES)
3108 return 0;
3109 ctx->max_pipelines = larg;
07077415 3110 return 1;
0f113f3e
MC		 3111 case SSL_CTRL_CERT_FLAGS:
3112 return (ctx->cert->cert_flags |= larg);
3113 case SSL_CTRL_CLEAR_CERT_FLAGS:
3114 return (ctx->cert->cert_flags &= ~larg);
7946ab33 3115 case SSL_CTRL_SET_MIN_PROTO_VERSION:
c8feba72
BK		 3116 return ssl_check_allowed_versions(larg, ctx->max_proto_version)
3117 && ssl_set_version_bound(ctx->method->version, (int)larg,
3118 &ctx->min_proto_version);
3edabd3c
CH		 3119 case SSL_CTRL_GET_MIN_PROTO_VERSION:
3120 return ctx->min_proto_version;
7946ab33 3121 case SSL_CTRL_SET_MAX_PROTO_VERSION:
c8feba72
BK		 3122 return ssl_check_allowed_versions(ctx->min_proto_version, larg)
3123 && ssl_set_version_bound(ctx->method->version, (int)larg,
3124 &ctx->max_proto_version);
3edabd3c
CH		 3125 case SSL_CTRL_GET_MAX_PROTO_VERSION:
3126 return ctx->max_proto_version;
0f113f3e 3127 default:
26a7d938 3128 return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
0f113f3e
MC		 3129 }
3130}
3131
3132long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
3133{
3134 switch (cmd) {
3135 case SSL_CTRL_SET_MSG_CALLBACK:
3136 ctx->msg_callback = (void (*)
3137 (int write_p, int version, int content_type,
3138 const void *buf, size_t len, SSL *ssl,
3139 void *arg))(fp);
3140 return 1;
3141
3142 default:
26a7d938 3143 return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
0f113f3e
MC		 3144 }
3145}
d3442bc7 3146
ccd86b68 3147int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
0f113f3e 3148{
90d9e49a
DSH		 3149 if (a->id > b->id)
3150 return 1;
3151 if (a->id < b->id)
3152 return -1;
3153 return 0;
0f113f3e
MC		 3154}
3155
3156int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
3157 const SSL_CIPHER *const *bp)
3158{
90d9e49a
DSH		 3159 if ((*ap)->id > (*bp)->id)
3160 return 1;
3161 if ((*ap)->id < (*bp)->id)
3162 return -1;
3163 return 0;
0f113f3e 3164}
d02b48c6 3165
38b051a1
TM		 3166/*
3167 * return a STACK of the ciphers available for the SSL and in order of
3168 * preference
3169 */
0821bcd4 3170STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
0f113f3e 3171{
38b051a1
TM		 3172 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3173
3174 if (sc != NULL) {
3175 if (sc->cipher_list != NULL) {
3176 return sc->cipher_list;
0f113f3e 3177 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
26a7d938 3178 return s->ctx->cipher_list;
0f113f3e
MC		 3179 }
3180 }
26a7d938 3181 return NULL;
0f113f3e
MC		 3182}
3183
831eef2c
NM		 3184STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
3185{
38b051a1
TM		 3186 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3187
3188 if (sc == NULL || !sc->server)
831eef2c 3189 return NULL;
38b051a1 3190 return sc->peer_ciphers;
831eef2c
NM		 3191}
3192
8b8e5bed 3193STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
0f113f3e
MC		 3194{
3195 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
3196 int i;
38b051a1
TM		 3197 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3198
3199 if (sc == NULL)
3200 return NULL;
1d0c08b4 3201
0f113f3e
MC		 3202 ciphers = SSL_get_ciphers(s);
3203 if (!ciphers)
3204 return NULL;
38b051a1 3205 if (!ssl_set_client_disabled(sc))
1d0c08b4 3206 return NULL;
0f113f3e
MC		 3207 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
3208 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
38b051a1 3209 if (!ssl_cipher_disabled(sc, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
0f113f3e
MC		 3210 if (!sk)
3211 sk = sk_SSL_CIPHER_new_null();
3212 if (!sk)
3213 return NULL;
3214 if (!sk_SSL_CIPHER_push(sk, c)) {
3215 sk_SSL_CIPHER_free(sk);
3216 return NULL;
3217 }
3218 }
3219 }
3220 return sk;
3221}
8b8e5bed 3222
4f43d0e7 3223/** return a STACK of the ciphers available for the SSL and in order of
d02b48c6 3224 * algorithm id */
38b051a1 3225STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL_CONNECTION *s)
0f113f3e
MC		 3226{
3227 if (s != NULL) {
38b051a1 3228 if (s->cipher_list_by_id != NULL)
26a7d938 3229 return s->cipher_list_by_id;
38b051a1
TM		 3230 else if (s->ssl.ctx != NULL
3231 && s->ssl.ctx->cipher_list_by_id != NULL)
3232 return s->ssl.ctx->cipher_list_by_id;
0f113f3e 3233 }
26a7d938 3234 return NULL;
0f113f3e 3235}
d02b48c6 3236
4f43d0e7 3237/** The old interface to get the same thing as SSL_get_ciphers() */
0f113f3e
MC		 3238const char *SSL_get_cipher_list(const SSL *s, int n)
3239{
4a640fb6 3240 const SSL_CIPHER *c;
0f113f3e
MC		 3241 STACK_OF(SSL_CIPHER) *sk;
3242
3243 if (s == NULL)
26a7d938 3244 return NULL;
0f113f3e
MC		 3245 sk = SSL_get_ciphers(s);
3246 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
26a7d938 3247 return NULL;
0f113f3e
MC		 3248 c = sk_SSL_CIPHER_value(sk, n);
3249 if (c == NULL)
26a7d938
K		 3250 return NULL;
3251 return c->name;
0f113f3e 3252}
d02b48c6 3253
9d5ac953
KY		 3254/** return a STACK of the ciphers available for the SSL_CTX and in order of
3255 * preference */
3256STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
3257{
3258 if (ctx != NULL)
3259 return ctx->cipher_list;
3260 return NULL;
3261}
3262
3c83c5ba
SR		 3263/*
3264 * Distinguish between ciphers controlled by set_ciphersuite() and
3265 * set_cipher_list() when counting.
3266 */
3267static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
3268{
3269 int i, num = 0;
3270 const SSL_CIPHER *c;
3271
3272 if (sk == NULL)
3273 return 0;
3274 for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
3275 c = sk_SSL_CIPHER_value(sk, i);
3276 if (c->min_tls >= TLS1_3_VERSION)
3277 continue;
3278 num++;
3279 }
3280 return num;
3281}
3282
25f923dd 3283/** specify the ciphers to be used by default by the SSL_CTX */
018e57c7 3284int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
0f113f3e
MC		 3285{
3286 STACK_OF(SSL_CIPHER) *sk;
3287
a68eee67 3288 sk = ssl_create_cipher_list(ctx, ctx->tls13_ciphersuites,
f865b081
MC		 3289 &ctx->cipher_list, &ctx->cipher_list_by_id, str,
3290 ctx->cert);
0f113f3e
MC		 3291 /*
3292 * ssl_create_cipher_list may return an empty stack if it was unable to
3293 * find a cipher matching the given rule string (for example if the rule
3294 * string specifies a cipher which has been disabled). This is not an
3295 * error as far as ssl_create_cipher_list is concerned, and hence
3296 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
3297 */
3298 if (sk == NULL)
3299 return 0;
3c83c5ba 3300 else if (cipher_list_tls12_num(sk) == 0) {
6849b73c 3301 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
0f113f3e
MC		 3302 return 0;
3303 }
3304 return 1;
3305}
d02b48c6 3306
4f43d0e7 3307/** specify the ciphers to be used by the SSL */
0f113f3e
MC		 3308int SSL_set_cipher_list(SSL *s, const char *str)
3309{
3310 STACK_OF(SSL_CIPHER) *sk;
38b051a1 3311 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
0f113f3e 3312
38b051a1
TM		 3313 if (sc == NULL)
3314 return 0;
3315
3316 sk = ssl_create_cipher_list(s->ctx, sc->tls13_ciphersuites,
3317 &sc->cipher_list, &sc->cipher_list_by_id, str,
3318 sc->cert);
0f113f3e
MC		 3319 /* see comment in SSL_CTX_set_cipher_list */
3320 if (sk == NULL)
3321 return 0;
3c83c5ba 3322 else if (cipher_list_tls12_num(sk) == 0) {
6849b73c 3323 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
0f113f3e
MC		 3324 return 0;
3325 }
3326 return 1;
3327}
d02b48c6 3328
a216df59 3329char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
0f113f3e
MC		 3330{
3331 char *p;
a216df59 3332 STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
4a640fb6 3333 const SSL_CIPHER *c;
0f113f3e 3334 int i;
38b051a1
TM		 3335 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3336
3337 if (sc == NULL)
3338 return NULL;
0f113f3e 3339
38b051a1
TM		 3340 if (!sc->server
3341 || sc->peer_ciphers == NULL
a216df59 3342 || size < 2)
26a7d938 3343 return NULL;
0f113f3e
MC		 3344
3345 p = buf;
38b051a1 3346 clntsk = sc->peer_ciphers;
a216df59
MC		 3347 srvrsk = SSL_get_ciphers(s);
3348 if (clntsk == NULL || srvrsk == NULL)
3349 return NULL;
0f113f3e 3350
a216df59 3351 if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
0f113f3e
MC		 3352 return NULL;
3353
a216df59 3354 for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
0f113f3e
MC		 3355 int n;
3356
a216df59
MC		 3357 c = sk_SSL_CIPHER_value(clntsk, i);
3358 if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
3359 continue;
3360
0f113f3e 3361 n = strlen(c->name);
a216df59 3362 if (n + 1 > size) {
0f113f3e
MC		 3363 if (p != buf)
3364 --p;
3365 *p = '\0';
3366 return buf;
3367 }
4cacc9d5 3368 strcpy(p, c->name);
0f113f3e
MC		 3369 p += n;
3370 *(p++) = ':';
a216df59 3371 size -= n + 1;
0f113f3e
MC		 3372 }
3373 p[-1] = '\0';
26a7d938 3374 return buf;
0f113f3e
MC		 3375}
3376
7955c1f1
MC		 3377/**
3378 * Return the requested servername (SNI) value. Note that the behaviour varies
3379 * depending on:
3380 * - whether this is called by the client or the server,
3381 * - if we are before or during/after the handshake,
3382 * - if a resumption or normal handshake is being attempted/has occurred
3383 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
38b051a1 3384 *
7955c1f1 3385 * Note that only the host_name type is defined (RFC 3546).
ed3883d2 3386 */
f1fd4544 3387const char *SSL_get_servername(const SSL *s, const int type)
0f113f3e 3388{
38b051a1
TM		 3389 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3390 int server;
3391
3392 if (sc == NULL)
3393 return NULL;
3394
7955c1f1
MC		 3395 /*
3396 * If we don't know if we are the client or the server yet then we assume
3397 * client.
3398 */
38b051a1
TM		 3399 server = sc->handshake_func == NULL ? 0 : sc->server;
3400
0f113f3e
MC		 3401 if (type != TLSEXT_NAMETYPE_host_name)
3402 return NULL;
a13c20f6 3403
7955c1f1
MC		 3404 if (server) {
3405 /**
3406 * Server side
3407 * In TLSv1.3 on the server SNI is not associated with the session
3408 * but in TLSv1.2 or below it is.
3409 *
3410 * Before the handshake:
3411 * - return NULL
3412 *
3413 * During/after the handshake (TLSv1.2 or below resumption occurred):
3414 * - If a servername was accepted by the server in the original
3415 * handshake then it will return that servername, or NULL otherwise.
3416 *
3417 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3418 * - The function will return the servername requested by the client in
3419 * this handshake or NULL if none was requested.
3420 */
38b051a1
TM		 3421 if (sc->hit && !SSL_CONNECTION_IS_TLS13(sc))
3422 return sc->session->ext.hostname;
7955c1f1
MC		 3423 } else {
3424 /**
3425 * Client side
3426 *
3427 * Before the handshake:
3428 * - If a servername has been set via a call to
3429 * SSL_set_tlsext_host_name() then it will return that servername
3430 * - If one has not been set, but a TLSv1.2 resumption is being
3431 * attempted and the session from the original handshake had a
3432 * servername accepted by the server then it will return that
3433 * servername
3434 * - Otherwise it returns NULL
3435 *
3436 * During/after the handshake (TLSv1.2 or below resumption occurred):
9f7505ab 3437 * - If the session from the original handshake had a servername accepted
7955c1f1
MC		 3438 * by the server then it will return that servername.
3439 * - Otherwise it returns the servername set via
3440 * SSL_set_tlsext_host_name() (or NULL if it was not called).
3441 *
3442 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3443 * - It will return the servername set via SSL_set_tlsext_host_name()
3444 * (or NULL if it was not called).
3445 */
3446 if (SSL_in_before(s)) {
38b051a1
TM		 3447 if (sc->ext.hostname == NULL
3448 && sc->session != NULL
3449 && sc->session->ssl_version != TLS1_3_VERSION)
3450 return sc->session->ext.hostname;
7955c1f1 3451 } else {
38b051a1
TM		 3452 if (!SSL_CONNECTION_IS_TLS13(sc) && sc->hit
3453 && sc->session->ext.hostname != NULL)
3454 return sc->session->ext.hostname;
7955c1f1
MC		 3455 }
3456 }
3457
38b051a1 3458 return sc->ext.hostname;
0f113f3e 3459}
ed3883d2 3460
f1fd4544 3461int SSL_get_servername_type(const SSL *s)
0f113f3e 3462{
7955c1f1 3463 if (SSL_get_servername(s, TLSEXT_NAMETYPE_host_name) != NULL)
0f113f3e
MC		 3464 return TLSEXT_NAMETYPE_host_name;
3465 return -1;
3466}
ee2ffc27 3467
0f113f3e
MC		 3468/*
3469 * SSL_select_next_proto implements the standard protocol selection. It is
ee2ffc27 3470 * expected that this function is called from the callback set by
0f113f3e
MC		 3471 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
3472 * vector of 8-bit, length prefixed byte strings. The length byte itself is
3473 * not included in the length. A byte string of length 0 is invalid. No byte
3474 * string may be truncated. The current, but experimental algorithm for
3475 * selecting the protocol is: 1) If the server doesn't support NPN then this
3476 * is indicated to the callback. In this case, the client application has to
3477 * abort the connection or have a default application level protocol. 2) If
3478 * the server supports NPN, but advertises an empty list then the client
f430ba31 3479 * selects the first protocol in its list, but indicates via the API that this
0f113f3e
MC		 3480 * fallback case was enacted. 3) Otherwise, the client finds the first
3481 * protocol in the server's list that it supports and selects this protocol.
3482 * This is because it's assumed that the server has better information about
3483 * which protocol a client should use. 4) If the client doesn't support any
3484 * of the server's advertised protocols, then this is treated the same as
3485 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
3486 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
ee2ffc27 3487 */
0f113f3e
MC		 3488int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
3489 const unsigned char *server,
3490 unsigned int server_len,
a230b26e 3491 const unsigned char *client, unsigned int client_len)
0f113f3e
MC		 3492{
3493 unsigned int i, j;
3494 const unsigned char *result;
3495 int status = OPENSSL_NPN_UNSUPPORTED;
3496
3497 /*
3498 * For each protocol in server preference order, see if we support it.
3499 */
3500 for (i = 0; i < server_len;) {
3501 for (j = 0; j < client_len;) {
3502 if (server[i] == client[j] &&
3503 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
3504 /* We found a match */
3505 result = &server[i];
3506 status = OPENSSL_NPN_NEGOTIATED;
3507 goto found;
3508 }
3509 j += client[j];
3510 j++;
3511 }
3512 i += server[i];
3513 i++;
3514 }
3515
3516 /* There's no overlap between our protocols and the server's list. */
3517 result = client;
3518 status = OPENSSL_NPN_NO_OVERLAP;
3519
3520 found:
3521 *out = (unsigned char *)result + 1;
3522 *outlen = result[0];
3523 return status;
3524}
ee2ffc27 3525
e481f9b9 3526#ifndef OPENSSL_NO_NEXTPROTONEG
0f113f3e
MC		 3527/*
3528 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
3529 * client's requested protocol for this connection and returns 0. If the
3530 * client didn't request any protocol, then *data is set to NULL. Note that
3531 * the client can request any protocol it chooses. The value returned from
3532 * this function need not be a member of the list of supported protocols
ee2ffc27
BL		 3533 * provided by the callback.
3534 */
0f113f3e
MC		 3535void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
3536 unsigned *len)
3537{
38b051a1
TM		 3538 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3539
3540 if (sc == NULL) {
3541 /* We have no other way to indicate error */
3542 *data = NULL;
3543 *len = 0;
3544 return;
3545 }
3546
3547 *data = sc->ext.npn;
12a765a5 3548 if (*data == NULL) {
0f113f3e
MC		 3549 *len = 0;
3550 } else {
38b051a1 3551 *len = (unsigned int)sc->ext.npn_len;
0f113f3e
MC		 3552 }
3553}
3554
3555/*
aff8c126 3556 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
0f113f3e
MC		 3557 * a TLS server needs a list of supported protocols for Next Protocol
3558 * Negotiation. The returned list must be in wire format. The list is
3559 * returned by setting |out| to point to it and |outlen| to its length. This
3560 * memory will not be modified, but one should assume that the SSL* keeps a
3561 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
3562 * wishes to advertise. Otherwise, no such extension will be included in the
3563 * ServerHello.
3564 */
aff8c126 3565void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
8cbfcc70 3566 SSL_CTX_npn_advertised_cb_func cb,
aff8c126 3567 void *arg)
0f113f3e 3568{
68dbff4c
HL		 3569 if (IS_QUIC_CTX(ctx))
3570 /* NPN not allowed for QUIC */
3571 return;
3572
aff8c126
RS		 3573 ctx->ext.npn_advertised_cb = cb;
3574 ctx->ext.npn_advertised_cb_arg = arg;
0f113f3e
MC		 3575}
3576
3577/*
3578 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
ee2ffc27
BL		 3579 * client needs to select a protocol from the server's provided list. |out|
3580 * must be set to point to the selected protocol (which may be within |in|).
0f113f3e
MC		 3581 * The length of the protocol name must be written into |outlen|. The
3582 * server's advertised protocols are provided in |in| and |inlen|. The
3583 * callback can assume that |in| is syntactically valid. The client must
3584 * select a protocol. It is fatal to the connection if this callback returns
3585 * a value other than SSL_TLSEXT_ERR_OK.
ee2ffc27 3586 */
aff8c126 3587void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
8cbfcc70 3588 SSL_CTX_npn_select_cb_func cb,
aff8c126 3589 void *arg)
0f113f3e 3590{
68dbff4c
HL		 3591 if (IS_QUIC_CTX(ctx))
3592 /* NPN not allowed for QUIC */
3593 return;
3594
aff8c126
RS		 3595 ctx->ext.npn_select_cb = cb;
3596 ctx->ext.npn_select_cb_arg = arg;
0f113f3e 3597}
e481f9b9 3598#endif
a398f821 3599
feba11cf
TS		 3600static int alpn_value_ok(const unsigned char *protos, unsigned int protos_len)
3601{
3602 unsigned int idx;
3603
3604 if (protos_len < 2 || protos == NULL)
3605 return 0;
3606
3607 for (idx = 0; idx < protos_len; idx += protos[idx] + 1) {
3608 if (protos[idx] == 0)
3609 return 0;
3610 }
3611 return idx == protos_len;
3612}
0f113f3e
MC		 3613/*
3614 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
6f017a8f 3615 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
0f113f3e
MC		 3616 * length-prefixed strings). Returns 0 on success.
3617 */
3618int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
817cd0d5 3619 unsigned int protos_len)
0f113f3e 3620{
feba11cf
TS		 3621 unsigned char *alpn;
3622
3623 if (protos_len == 0 || protos == NULL) {
3624 OPENSSL_free(ctx->ext.alpn);
3625 ctx->ext.alpn = NULL;
39a14059 3626 ctx->ext.alpn_len = 0;
feba11cf
TS		 3627 return 0;
3628 }
3629 /* Not valid per RFC */
3630 if (!alpn_value_ok(protos, protos_len))
3631 return 1;
3632
3633 alpn = OPENSSL_memdup(protos, protos_len);
e077455e 3634 if (alpn == NULL)
0f113f3e 3635 return 1;
feba11cf
TS		 3636 OPENSSL_free(ctx->ext.alpn);
3637 ctx->ext.alpn = alpn;
aff8c126 3638 ctx->ext.alpn_len = protos_len;
0f113f3e
MC		 3639
3640 return 0;
3641}
3642
3643/*
3644 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
6f017a8f 3645 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
0f113f3e
MC		 3646 * length-prefixed strings). Returns 0 on success.
3647 */
3648int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
817cd0d5 3649 unsigned int protos_len)
0f113f3e 3650{
feba11cf 3651 unsigned char *alpn;
38b051a1
TM		 3652 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
3653
3654 if (sc == NULL)
3655 return 1;
feba11cf
TS		 3656
3657 if (protos_len == 0 || protos == NULL) {
38b051a1
TM		 3658 OPENSSL_free(sc->ext.alpn);
3659 sc->ext.alpn = NULL;
3660 sc->ext.alpn_len = 0;
feba11cf
TS		 3661 return 0;
3662 }
3663 /* Not valid per RFC */
3664 if (!alpn_value_ok(protos, protos_len))
3665 return 1;
3666
3667 alpn = OPENSSL_memdup(protos, protos_len);
e077455e 3668 if (alpn == NULL)
0f113f3e 3669 return 1;
38b051a1
TM		 3670 OPENSSL_free(sc->ext.alpn);
3671 sc->ext.alpn = alpn;
3672 sc->ext.alpn_len = protos_len;
0f113f3e
MC		 3673
3674 return 0;
3675}
3676
3677/*
3678 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3679 * called during ClientHello processing in order to select an ALPN protocol
3680 * from the client's list of offered protocols.
3681 */
3682void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
8cbfcc70
RS		 3683 SSL_CTX_alpn_select_cb_func cb,
3684 void *arg)
0f113f3e 3685{
aff8c126
RS		 3686 ctx->ext.alpn_select_cb = cb;
3687 ctx->ext.alpn_select_cb_arg = arg;
0f113f3e
MC		 3688}
3689
3690/*
69687aa8
F		 3691 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3692 * On return it sets |*data| to point to |*len| bytes of protocol name
0f113f3e
MC		 3693 * (not including the leading length-prefix byte). If the server didn't
3694 * respond with a negotiated protocol then |*len| will be zero.
3695 */
6f017a8f 3696void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
817cd0d5 3697 unsigned int *len)
0f113f3e 3698{
38b051a1
TM		 3699 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
3700
3701 if (sc == NULL) {
3702 /* We have no other way to indicate error */
3703 *data = NULL;
3704 *len = 0;
3705 return;
3706 }
3707
3708 *data = sc->s3.alpn_selected;
0f113f3e
MC		 3709 if (*data == NULL)
3710 *len = 0;
3711 else
38b051a1 3712 *len = (unsigned int)sc->s3.alpn_selected_len;
0f113f3e
MC		 3713}
3714
74b4b494 3715int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
0f113f3e 3716 const char *label, size_t llen,
23cec1f4 3717 const unsigned char *context, size_t contextlen,
0f113f3e
MC		 3718 int use_context)
3719{
38b051a1
TM		 3720 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3721
3722 if (sc == NULL)
3723 return -1;
3724
3725 if (sc->session == NULL
3726 || (sc->version < TLS1_VERSION && sc->version != DTLS1_BAD_VER))
0f113f3e 3727 return -1;
e0af0405 3728
38b051a1 3729 return s->method->ssl3_enc->export_keying_material(sc, out, olen, label,
23cec1f4
MC		 3730 llen, context,
3731 contextlen, use_context);
0f113f3e 3732}
e0af0405 3733
b38ede80
TT		 3734int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
3735 const char *label, size_t llen,
3736 const unsigned char *context,
3737 size_t contextlen)
3738{
38b051a1
TM		 3739 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3740
3741 if (sc == NULL)
3742 return -1;
3743
3744 if (sc->version != TLS1_3_VERSION)
b38ede80
TT		 3745 return 0;
3746
38b051a1 3747 return tls13_export_keying_material_early(sc, out, olen, label, llen,
b38ede80
TT		 3748 context, contextlen);
3749}
3750
3c1d6bbc 3751static unsigned long ssl_session_hash(const SSL_SESSION *a)
0f113f3e 3752{
bd5d27c1 3753 const unsigned char *session_id = a->session_id;
0f113f3e 3754 unsigned long l;
bd5d27c1
DB		 3755 unsigned char tmp_storage[4];
3756
3757 if (a->session_id_length < sizeof(tmp_storage)) {
3758 memset(tmp_storage, 0, sizeof(tmp_storage));
3759 memcpy(tmp_storage, a->session_id, a->session_id_length);
3760 session_id = tmp_storage;
3761 }
0f113f3e
MC		 3762
3763 l = (unsigned long)
bd5d27c1
DB		 3764 ((unsigned long)session_id[0]) |
3765 ((unsigned long)session_id[1] << 8L) |
3766 ((unsigned long)session_id[2] << 16L) |
3767 ((unsigned long)session_id[3] << 24L);
26a7d938 3768 return l;
0f113f3e
MC		 3769}
3770
3771/*
3772 * NB: If this function (or indeed the hash function which uses a sort of
dc644fe2 3773 * coarser function than this one) is changed, ensure
0f113f3e
MC		 3774 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3775 * being able to construct an SSL_SESSION that will collide with any existing
3776 * session with a matching session ID.
3777 */
3778static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
3779{
3780 if (a->ssl_version != b->ssl_version)
208fb891 3781 return 1;
0f113f3e 3782 if (a->session_id_length != b->session_id_length)
208fb891 3783 return 1;
26a7d938 3784 return memcmp(a->session_id, b->session_id, a->session_id_length);
0f113f3e
MC		 3785}
3786
3787/*
3788 * These wrapper functions should remain rather than redeclaring
d0fa136c 3789 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
0f113f3e
MC		 3790 * variable. The reason is that the functions aren't static, they're exposed
3791 * via ssl.h.
3792 */
97b17195 3793
b4250010 3794SSL_CTX *SSL_CTX_new_ex(OSSL_LIB_CTX *libctx, const char *propq,
d8652be0 3795 const SSL_METHOD *meth)
0f113f3e
MC		 3796{
3797 SSL_CTX *ret = NULL;
b67cb09f
TS		 3798#ifndef OPENSSL_NO_COMP_ALG
3799 int i;
3800#endif
0f113f3e
MC		 3801
3802 if (meth == NULL) {
6849b73c 3803 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_METHOD_PASSED);
26a7d938 3804 return NULL;
0f113f3e
MC		 3805 }
3806
0fc32b07
MC		 3807 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
3808 return NULL;
7fa792d1 3809
97beb77f 3810 /* Doing this for the run once effect */
0f113f3e 3811 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
6849b73c 3812 ERR_raise(ERR_LIB_SSL, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
0f113f3e
MC		 3813 goto err;
3814 }
43a07d6d 3815
b51bce94 3816 ret = OPENSSL_zalloc(sizeof(*ret));
0f113f3e 3817 if (ret == NULL)
97beb77f 3818 return NULL;
0f113f3e 3819
045a8930 3820 /* Init the reference counting before any call to SSL_CTX_free */
97beb77f
P		 3821 if (!CRYPTO_NEW_REF(&ret->references, 1)) {
3822 OPENSSL_free(ret);
3823 return NULL;
3824 }
43a07d6d 3825
045a8930
F		 3826 ret->lock = CRYPTO_THREAD_lock_new();
3827 if (ret->lock == NULL) {
e077455e
RL		 3828 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3829 goto err;
045a8930
F		 3830 }
3831
acce0557
P		 3832#ifdef TSAN_REQUIRES_LOCKING
3833 ret->tsan_lock = CRYPTO_THREAD_lock_new();
3834 if (ret->tsan_lock == NULL) {
e077455e 3835 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
acce0557
P		 3836 goto err;
3837 }
3838#endif
3839
ba18627e
MC		 3840 ret->libctx = libctx;
3841 if (propq != NULL) {
3842 ret->propq = OPENSSL_strdup(propq);
3843 if (ret->propq == NULL)
3844 goto err;
3845 }
3846
0f113f3e 3847 ret->method = meth;
7946ab33
KR		 3848 ret->min_proto_version = 0;
3849 ret->max_proto_version = 0;
693cf80c 3850 ret->mode = SSL_MODE_AUTO_RETRY;
0f113f3e
MC		 3851 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
3852 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
64b25758 3853 /* We take the system default. */
0f113f3e 3854 ret->session_timeout = meth->get_timeout();
0f113f3e 3855 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
0f113f3e 3856 ret->verify_mode = SSL_VERIFY_NONE;
0f113f3e 3857
62d0577e 3858 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
e077455e
RL		 3859 if (ret->sessions == NULL) {
3860 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
0f113f3e 3861 goto err;
e077455e 3862 }
0f113f3e 3863 ret->cert_store = X509_STORE_new();
e077455e
RL		 3864 if (ret->cert_store == NULL) {
3865 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
0f113f3e 3866 goto err;
e077455e 3867 }
ed29e82a 3868#ifndef OPENSSL_NO_CT
d8652be0 3869 ret->ctlog_store = CTLOG_STORE_new_ex(libctx, propq);
e077455e
RL		 3870 if (ret->ctlog_store == NULL) {
3871 ERR_raise(ERR_LIB_SSL, ERR_R_CT_LIB);
ed29e82a 3872 goto err;
e077455e 3873 }
ed29e82a 3874#endif
f865b081 3875
c8f6c28a 3876 /* initialize cipher/digest methods table */
ee58915c
MB		 3877 if (!ssl_load_ciphers(ret)) {
3878 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
e077455e 3879 goto err;
ee58915c
MB		 3880 }
3881
3882 if (!ssl_load_groups(ret)) {
3883 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3884 goto err;
3885 }
3886
3887 /* load provider sigalgs */
3888 if (!ssl_load_sigalgs(ret)) {
3889 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
e077455e 3890 goto err;
ee58915c 3891 }
c8f6c28a 3892
ee58915c
MB		 3893 /* initialise sig algs */
3894 if (!ssl_setup_sigalgs(ret)) {
3895 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
e077455e 3896 goto err;
ee58915c 3897 }
9d2d857f 3898
e077455e
RL		 3899 if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites())) {
3900 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
f865b081 3901 goto err;
e077455e 3902 }
f865b081 3903
ee58915c
MB		 3904 if ((ret->cert = ssl_cert_new(SSL_PKEY_NUM + ret->sigalg_list_len)) == NULL) {
3905 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3906 goto err;
3907 }
3908
a68eee67 3909 if (!ssl_create_cipher_list(ret,
f865b081 3910 ret->tls13_ciphersuites,
a230b26e 3911 &ret->cipher_list, &ret->cipher_list_by_id,
5d120511 3912 OSSL_default_cipher_list(), ret->cert)
a230b26e 3913 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
6849b73c 3914 ERR_raise(ERR_LIB_SSL, SSL_R_LIBRARY_HAS_NO_CIPHERS);
e077455e 3915 goto err;
0f113f3e
MC		 3916 }
3917
3918 ret->param = X509_VERIFY_PARAM_new();
e077455e
RL		 3919 if (ret->param == NULL) {
3920 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
0f113f3e 3921 goto err;
e077455e 3922 }
0f113f3e 3923
c8f6c28a
MC		 3924 /*
3925 * If these aren't available from the provider we'll get NULL returns.
3926 * That's fine but will cause errors later if SSLv3 is negotiated
3927 */
3928 ret->md5 = ssl_evp_md_fetch(libctx, NID_md5, propq);
3929 ret->sha1 = ssl_evp_md_fetch(libctx, NID_sha1, propq);
0f113f3e 3930
e077455e
RL		 3931 if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL) {
3932 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
0f113f3e 3933 goto err;
e077455e 3934 }
0f113f3e 3935
e077455e
RL		 3936 if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL) {
3937 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
98732979 3938 goto err;
e077455e 3939 }
98732979 3940
e077455e
RL		 3941 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) {
3942 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
25a807bc 3943 goto err;
e077455e 3944 }
0f113f3e 3945
4bfb96f2
TS		 3946 if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
3947 goto err;
3948
0f113f3e
MC		 3949 /* No compression for DTLS */
3950 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
3951 ret->comp_methods = SSL_COMP_get_compression_methods();
3952
3953 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
d102d9df 3954 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
566dda07 3955
4e2e1ec9 3956 /* Setup RFC5077 ticket keys */
8f21260b 3957 if ((RAND_bytes_ex(libctx, ret->ext.tick_key_name,
0f8815aa 3958 sizeof(ret->ext.tick_key_name), 0) <= 0)
8f21260b 3959 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_hmac_key,
0f8815aa 3960 sizeof(ret->ext.secure->tick_hmac_key), 0) <= 0)
8f21260b 3961 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_aes_key,
0f8815aa 3962 sizeof(ret->ext.secure->tick_aes_key), 0) <= 0))
0f113f3e 3963 ret->options |= SSL_OP_NO_TICKET;
6434abbf 3964
8f21260b 3965 if (RAND_priv_bytes_ex(libctx, ret->ext.cookie_hmac_key,
e077455e
RL		 3966 sizeof(ret->ext.cookie_hmac_key), 0) <= 0) {
3967 ERR_raise(ERR_LIB_SSL, ERR_R_RAND_LIB);
43054d3d 3968 goto err;
e077455e 3969 }
43054d3d 3970
edc032b5 3971#ifndef OPENSSL_NO_SRP
e077455e
RL		 3972 if (!ssl_ctx_srp_ctx_init_intern(ret)) {
3973 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
69f68237 3974 goto err;
e077455e 3975 }
edc032b5 3976#endif
4db9677b 3977#ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 3978# ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3979# define eng_strx(x) #x
3980# define eng_str(x) eng_strx(x)
3981 /* Use specific client engine automatically... ignore errors */
3982 {
3983 ENGINE *eng;
3984 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3985 if (!eng) {
3986 ERR_clear_error();
3987 ENGINE_load_builtin_engines();
3988 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3989 }
3990 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
3991 ERR_clear_error();
3992 }
3993# endif
b67cb09f
TS		 3994#endif
3995
3996#ifndef OPENSSL_NO_COMP_ALG
3997 /*
3998 * Set the default order: brotli, zlib, zstd
3999 * Including only those enabled algorithms
4000 */
4001 memset(ret->cert_comp_prefs, 0, sizeof(ret->cert_comp_prefs));
4002 i = 0;
4003 if (ossl_comp_has_alg(TLSEXT_comp_cert_brotli))
4004 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_brotli;
4005 if (ossl_comp_has_alg(TLSEXT_comp_cert_zlib))
4006 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zlib;
4007 if (ossl_comp_has_alg(TLSEXT_comp_cert_zstd))
4008 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zstd;
0f113f3e 4009#endif
dc5744cb
EK		 4010 /*
4011 * Disable compression by default to prevent CRIME. Applications can
4012 * re-enable compression by configuring
4013 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
a5816a5a
MC		 4014 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
4015 * middlebox compatibility by default. This may be disabled by default in
4016 * a later OpenSSL version.
dc5744cb 4017 */
a5816a5a 4018 ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
0f113f3e 4019
aff8c126 4020 ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
ba261f71 4021
bfa9a9af 4022 /*
c39e4048
BK		 4023 * We cannot usefully set a default max_early_data here (which gets
4024 * propagated in SSL_new(), for the following reason: setting the
4025 * SSL field causes tls_construct_stoc_early_data() to tell the
4026 * client that early data will be accepted when constructing a TLS 1.3
4027 * session ticket, and the client will accordingly send us early data
4028 * when using that ticket (if the client has early data to send).
4029 * However, in order for the early data to actually be consumed by
4030 * the application, the application must also have calls to
4031 * SSL_read_early_data(); otherwise we'll just skip past the early data
4032 * and ignore it. So, since the application must add calls to
4033 * SSL_read_early_data(), we also require them to add
4034 * calls to SSL_CTX_set_max_early_data() in order to use early data,
4035 * eliminating the bandwidth-wasting early data in the case described
4036 * above.
bfa9a9af 4037 */
c39e4048 4038 ret->max_early_data = 0;
bfa9a9af 4039
4e8548e8
MC		 4040 /*
4041 * Default recv_max_early_data is a fully loaded single record. Could be
4042 * split across multiple records in practice. We set this differently to
4043 * max_early_data so that, in the default case, we do not advertise any
4044 * support for early_data, but if a client were to send us some (e.g.
4045 * because of an old, stale ticket) then we will tolerate it and skip over
4046 * it.
4047 */
4048 ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
4049
36ff232c
MC		 4050 /* By default we send two session tickets automatically in TLSv1.3 */
4051 ret->num_tickets = 2;
9d0a8bb7 4052
8a5ed9dc
TM		 4053 ssl_ctx_system_config(ret);
4054
16203f7b 4055 return ret;
0f113f3e 4056 err:
e0e920b1 4057 SSL_CTX_free(ret);
16203f7b 4058 return NULL;
0f113f3e 4059}
d02b48c6 4060
ba18627e
MC		 4061SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
4062{
d8652be0 4063 return SSL_CTX_new_ex(NULL, NULL, meth);
ba18627e
MC		 4064}
4065
c5ebfcab 4066int SSL_CTX_up_ref(SSL_CTX *ctx)
a18a31e4 4067{
16203f7b 4068 int i;
c5ebfcab 4069
43a07d6d 4070 if (CRYPTO_UP_REF(&ctx->references, &i) <= 0)
c5ebfcab
F		 4071 return 0;
4072
4073 REF_PRINT_COUNT("SSL_CTX", ctx);
4074 REF_ASSERT_ISNT(i < 2);
4075 return ((i > 1) ? 1 : 0);
a18a31e4
MC		 4076}
4077
4f43d0e7 4078void SSL_CTX_free(SSL_CTX *a)
0f113f3e
MC		 4079{
4080 int i;
9d2d857f 4081 size_t j;
d02b48c6 4082
0f113f3e
MC		 4083 if (a == NULL)
4084 return;
d02b48c6 4085
43a07d6d 4086 CRYPTO_DOWN_REF(&a->references, &i);
f3f1cf84 4087 REF_PRINT_COUNT("SSL_CTX", a);
0f113f3e
MC		 4088 if (i > 0)
4089 return;
f3f1cf84 4090 REF_ASSERT_ISNT(i < 0);
0f113f3e 4091
222561fe 4092 X509_VERIFY_PARAM_free(a->param);
919ba009 4093 dane_ctx_final(&a->dane);
0f113f3e
MC		 4094
4095 /*
4096 * Free internal session cache. However: the remove_cb() may reference
4097 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
4098 * after the sessions were flushed.
4099 * As the ex_data handling routines might also touch the session cache,
4100 * the most secure solution seems to be: empty (flush) the cache, then
4101 * free ex_data, then finally free the cache.
4102 * (See ticket [openssl.org #212].)
4103 */
4104 if (a->sessions != NULL)
4105 SSL_CTX_flush_sessions(a, 0);
4106
4107 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
25aaa98a 4108 lh_SSL_SESSION_free(a->sessions);
222561fe 4109 X509_STORE_free(a->cert_store);
ed29e82a
RP		 4110#ifndef OPENSSL_NO_CT
4111 CTLOG_STORE_free(a->ctlog_store);
4112#endif
25aaa98a
RS		 4113 sk_SSL_CIPHER_free(a->cipher_list);
4114 sk_SSL_CIPHER_free(a->cipher_list_by_id);
f865b081 4115 sk_SSL_CIPHER_free(a->tls13_ciphersuites);
e0e920b1 4116 ssl_cert_free(a->cert);
fa7c2637 4117 sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
98732979 4118 sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
79b2a2f2 4119 OSSL_STACK_OF_X509_free(a->extra_certs);
0f113f3e 4120 a->comp_methods = NULL;
e783bae2 4121#ifndef OPENSSL_NO_SRTP
25aaa98a 4122 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
e783bae2 4123#endif
edc032b5 4124#ifndef OPENSSL_NO_SRP
76cb077f 4125 ssl_ctx_srp_ctx_free_intern(a);
edc032b5 4126#endif
bdfe932d 4127#ifndef OPENSSL_NO_ENGINE
301fcb28 4128 tls_engine_finish(a->client_cert_engine);
ddac1974 4129#endif
8671b898 4130
aff8c126 4131 OPENSSL_free(a->ext.ecpointformats);
187753e0 4132 OPENSSL_free(a->ext.supportedgroups);
ddf8f1ce 4133 OPENSSL_free(a->ext.supported_groups_default);
aff8c126 4134 OPENSSL_free(a->ext.alpn);
4bfb96f2 4135 OPENSSL_secure_free(a->ext.secure);
8671b898 4136
c8f6c28a
MC		 4137 ssl_evp_md_free(a->md5);
4138 ssl_evp_md_free(a->sha1);
4139
9d2d857f
MC		 4140 for (j = 0; j < SSL_ENC_NUM_IDX; j++)
4141 ssl_evp_cipher_free(a->ssl_cipher_methods[j]);
4142 for (j = 0; j < SSL_MD_NUM_IDX; j++)
4143 ssl_evp_md_free(a->ssl_digest_methods[j]);
4144 for (j = 0; j < a->group_list_len; j++) {
4145 OPENSSL_free(a->group_list[j].tlsname);
4146 OPENSSL_free(a->group_list[j].realname);
4147 OPENSSL_free(a->group_list[j].algorithm);
4148 }
4149 OPENSSL_free(a->group_list);
ee58915c
MB		 4150 for (j = 0; j < a->sigalg_list_len; j++) {
4151 OPENSSL_free(a->sigalg_list[j].name);
4152 OPENSSL_free(a->sigalg_list[j].sigalg_name);
4153 OPENSSL_free(a->sigalg_list[j].sigalg_oid);
4154 OPENSSL_free(a->sigalg_list[j].sig_name);
4155 OPENSSL_free(a->sigalg_list[j].sig_oid);
4156 OPENSSL_free(a->sigalg_list[j].hash_name);
4157 OPENSSL_free(a->sigalg_list[j].hash_oid);
4158 OPENSSL_free(a->sigalg_list[j].keytype);
4159 OPENSSL_free(a->sigalg_list[j].keytype_oid);
4160 }
4161 OPENSSL_free(a->sigalg_list);
4162 OPENSSL_free(a->ssl_cert_info);
c8f6c28a 4163
263ff2c9 4164 OPENSSL_free(a->sigalg_lookup_cache);
ee58915c 4165 OPENSSL_free(a->tls12_sigalgs);
263ff2c9 4166
3c95ef22
TS		 4167 OPENSSL_free(a->client_cert_type);
4168 OPENSSL_free(a->server_cert_type);
4169
16203f7b 4170 CRYPTO_THREAD_lock_free(a->lock);
43a07d6d 4171 CRYPTO_FREE_REF(&a->references);
acce0557
P		 4172#ifdef TSAN_REQUIRES_LOCKING
4173 CRYPTO_THREAD_lock_free(a->tsan_lock);
4174#endif
16203f7b 4175
ba18627e
MC		 4176 OPENSSL_free(a->propq);
4177
0f113f3e
MC		 4178 OPENSSL_free(a);
4179}
d02b48c6 4180
3ae76679 4181void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
0f113f3e
MC		 4182{
4183 ctx->default_passwd_callback = cb;
4184}
4185
4186void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
4187{
4188 ctx->default_passwd_callback_userdata = u;
4189}
4190
0c452abc
CH		 4191pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
4192{
4193 return ctx->default_passwd_callback;
4194}
4195
4196void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
4197{
4198 return ctx->default_passwd_callback_userdata;
4199}
4200
a974e64a
MC		 4201void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
4202{
38b051a1
TM		 4203 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4204
4205 if (sc == NULL)
4206 return;
4207
4208 sc->default_passwd_callback = cb;
a974e64a
MC		 4209}
4210
4211void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
4212{
38b051a1
TM		 4213 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4214
4215 if (sc == NULL)
4216 return;
4217
4218 sc->default_passwd_callback_userdata = u;
a974e64a
MC		 4219}
4220
0c452abc
CH		 4221pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
4222{
38b051a1
TM		 4223 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4224
4225 if (sc == NULL)
4226 return NULL;
4227
4228 return sc->default_passwd_callback;
0c452abc
CH		 4229}
4230
4231void *SSL_get_default_passwd_cb_userdata(SSL *s)
4232{
38b051a1
TM		 4233 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4234
4235 if (sc == NULL)
4236 return NULL;
4237
4238 return sc->default_passwd_callback_userdata;
0c452abc
CH		 4239}
4240
0f113f3e
MC		 4241void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
4242 int (*cb) (X509_STORE_CTX *, void *),
4243 void *arg)
4244{
4245 ctx->app_verify_callback = cb;
4246 ctx->app_verify_arg = arg;
4247}
4248
4249void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
4250 int (*cb) (int, X509_STORE_CTX *))
4251{
4252 ctx->verify_mode = mode;
4253 ctx->default_verify_callback = cb;
4254}
4255
4256void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
4257{
4258 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
4259}
4260
a230b26e 4261void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
0f113f3e
MC		 4262{
4263 ssl_cert_set_cert_cb(c->cert, cb, arg);
4264}
4265
4266void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
4267{
38b051a1
TM		 4268 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4269
4270 if (sc == NULL)
4271 return;
4272
4273 ssl_cert_set_cert_cb(sc->cert, cb, arg);
0f113f3e 4274}
18d71588 4275
38b051a1 4276void ssl_set_masks(SSL_CONNECTION *s)
0f113f3e 4277{
6383d316 4278 CERT *c = s->cert;
555cbb32 4279 uint32_t *pvalid = s->s3.tmp.valid_flags;
bc71f910 4280 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
361a1191 4281 unsigned long mask_k, mask_a;
361a1191 4282 int have_ecc_cert, ecdsa_ok;
462f4f4b 4283
0f113f3e
MC		 4284 if (c == NULL)
4285 return;
d02b48c6 4286
13c45372 4287 dh_tmp = (c->dh_tmp != NULL
13c45372 4288 || c->dh_tmp_cb != NULL
13c45372 4289 || c->dh_tmp_auto);
d02b48c6 4290
d0ff28f8 4291 rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
38e8f3cd
DSH		 4292 rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4293 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
6383d316 4294 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
0f113f3e
MC		 4295 mask_k = 0;
4296 mask_a = 0;
0e1dba93 4297
77359d22
RL		 4298 OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
4299 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
0f113f3e 4300
2a9b9654 4301#ifndef OPENSSL_NO_GOST
4020c0b3 4302 if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
5a5530a2 4303 mask_k |= SSL_kGOST | SSL_kGOST18;
e44380a9
DB		 4304 mask_a |= SSL_aGOST12;
4305 }
4020c0b3 4306 if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
5a5530a2 4307 mask_k |= SSL_kGOST | SSL_kGOST18;
e44380a9
DB		 4308 mask_a |= SSL_aGOST12;
4309 }
4020c0b3 4310 if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
0f113f3e
MC		 4311 mask_k |= SSL_kGOST;
4312 mask_a |= SSL_aGOST01;
4313 }
2a9b9654 4314#endif
0f113f3e 4315
361a1191 4316 if (rsa_enc)
0f113f3e 4317 mask_k |= SSL_kRSA;
d02b48c6 4318
0f113f3e
MC		 4319 if (dh_tmp)
4320 mask_k |= SSL_kDHE;
d02b48c6 4321
6aaa29fb
DSH		 4322 /*
4323 * If we only have an RSA-PSS certificate allow RSA authentication
4324 * if TLS 1.2 and peer supports it.
4325 */
4326
4327 if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
4328 && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
38b051a1 4329 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION))
0f113f3e 4330 mask_a |= SSL_aRSA;
d02b48c6 4331
0f113f3e
MC		 4332 if (dsa_sign) {
4333 mask_a |= SSL_aDSS;
0f113f3e 4334 }
d02b48c6 4335
0f113f3e 4336 mask_a |= SSL_aNULL;
d02b48c6 4337
3c95ef22
TS		 4338 /*
4339 * You can do anything with an RPK key, since there's no cert to restrict it
4340 * But we need to check for private keys
4341 */
4342 if (pvalid[SSL_PKEY_RSA] & CERT_PKEY_RPK) {
4343 mask_a |= SSL_aRSA;
4344 mask_k |= SSL_kRSA;
4345 }
4346 if (pvalid[SSL_PKEY_ECC] & CERT_PKEY_RPK)
4347 mask_a |= SSL_aECDSA;
4348 if (TLS1_get_version(&s->ssl) == TLS1_2_VERSION) {
4349 if (pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_RPK)
4350 mask_a |= SSL_aRSA;
4351 if (pvalid[SSL_PKEY_ED25519] & CERT_PKEY_RPK
4352 || pvalid[SSL_PKEY_ED448] & CERT_PKEY_RPK)
4353 mask_a |= SSL_aECDSA;
4354 }
4355
0f113f3e
MC		 4356 /*
4357 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
4358 * depending on the key usage extension.
4359 */
0f113f3e 4360 if (have_ecc_cert) {
a8d8e06b 4361 uint32_t ex_kusage;
4020c0b3 4362 ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
a8d8e06b 4363 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
6383d316 4364 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
0f113f3e 4365 ecdsa_ok = 0;
c7c46256 4366 if (ecdsa_ok)
0f113f3e 4367 mask_a |= SSL_aECDSA;
0f113f3e 4368 }
b2021556
DSH		 4369 /* Allow Ed25519 for TLS 1.2 if peer supports it */
4370 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
4371 && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
38b051a1 4372 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
b2021556 4373 mask_a |= SSL_aECDSA;
0e1d6ecf
MC		 4374
4375 /* Allow Ed448 for TLS 1.2 if peer supports it */
4376 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
4377 && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
38b051a1 4378 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
0e1d6ecf 4379 mask_a |= SSL_aECDSA;
ea262260 4380
fe6ef247 4381 mask_k |= SSL_kECDHE;
ddac1974
NL		 4382
4383#ifndef OPENSSL_NO_PSK
0f113f3e
MC		 4384 mask_k |= SSL_kPSK;
4385 mask_a |= SSL_aPSK;
526f94ad
DSH		 4386 if (mask_k & SSL_kRSA)
4387 mask_k |= SSL_kRSAPSK;
4388 if (mask_k & SSL_kDHE)
4389 mask_k |= SSL_kDHEPSK;
4390 if (mask_k & SSL_kECDHE)
4391 mask_k |= SSL_kECDHEPSK;
ddac1974
NL		 4392#endif
4393
555cbb32
TS		 4394 s->s3.tmp.mask_k = mask_k;
4395 s->s3.tmp.mask_a = mask_a;
0f113f3e 4396}
d02b48c6 4397
38b051a1 4398int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CONNECTION *s)
0f113f3e 4399{
555cbb32 4400 if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
0f113f3e 4401 /* key usage, if present, must allow signing */
ce0c1f2b 4402 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
6849b73c 4403 ERR_raise(ERR_LIB_SSL, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
0f113f3e
MC		 4404 return 0;
4405 }
4406 }
0f113f3e
MC		 4407 return 1; /* all checks are ok */
4408}
ea262260 4409
38b051a1
TM		 4410int ssl_get_server_cert_serverinfo(SSL_CONNECTION *s,
4411 const unsigned char **serverinfo,
0f113f3e
MC		 4412 size_t *serverinfo_length)
4413{
555cbb32 4414 CERT_PKEY *cpk = s->s3.tmp.cert;
0f113f3e
MC		 4415 *serverinfo_length = 0;
4416
a497cf25 4417 if (cpk == NULL || cpk->serverinfo == NULL)
0f113f3e
MC		 4418 return 0;
4419
a497cf25
DSH		 4420 *serverinfo = cpk->serverinfo;
4421 *serverinfo_length = cpk->serverinfo_length;
0f113f3e
MC		 4422 return 1;
4423}
0f113f3e 4424
38b051a1 4425void ssl_update_cache(SSL_CONNECTION *s, int mode)
0f113f3e
MC		 4426{
4427 int i;
4428
4429 /*
4430 * If the session_id_length is 0, we are not supposed to cache it, and it
4431 * would be rather hard to do anyway :-)
4432 */
4433 if (s->session->session_id_length == 0)
4434 return;
4435
d316cdcf
BK		 4436 /*
4437 * If sid_ctx_length is 0 there is no specific application context
4438 * associated with this session, so when we try to resume it and
c4fa1f7f
BK		 4439 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
4440 * indication that this is actually a session for the proper application
4441 * context, and the *handshake* will fail, not just the resumption attempt.
4442 * Do not cache (on the server) these sessions that are not resumable
4443 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
d316cdcf 4444 */
c4fa1f7f 4445 if (s->server && s->session->sid_ctx_length == 0
d316cdcf
BK		 4446 && (s->verify_mode & SSL_VERIFY_PEER) != 0)
4447 return;
4448
0f113f3e 4449 i = s->session_ctx->session_cache_mode;
5d61491c 4450 if ((i & mode) != 0
38b051a1 4451 && (!s->hit || SSL_CONNECTION_IS_TLS13(s))) {
ee94ec2e
MC		 4452 /*
4453 * Add the session to the internal cache. In server side TLSv1.3 we
6cc0b3c2
MC		 4454 * normally don't do this because by default it's a full stateless ticket
4455 * with only a dummy session id so there is no reason to cache it,
4456 * unless:
ee94ec2e
MC		 4457 * - we are doing early_data, in which case we cache so that we can
4458 * detect replays
4459 * - the application has set a remove_session_cb so needs to know about
4460 * session timeout events
6cc0b3c2 4461 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
ee94ec2e
MC		 4462 */
4463 if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
38b051a1 4464 && (!SSL_CONNECTION_IS_TLS13(s)
ee94ec2e 4465 || !s->server
5d263fb7
MC		 4466 || (s->max_early_data > 0
4467 && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
6cc0b3c2
MC		 4468 || s->session_ctx->remove_session_cb != NULL
4469 || (s->options & SSL_OP_NO_TICKET) != 0))
ee94ec2e
MC		 4470 SSL_CTX_add_session(s->session_ctx, s->session);
4471
4472 /*
4473 * Add the session to the external cache. We do this even in server side
4474 * TLSv1.3 without early data because some applications just want to
4475 * know about the creation of a session and aren't doing a full cache.
4476 */
4477 if (s->session_ctx->new_session_cb != NULL) {
4478 SSL_SESSION_up_ref(s->session);
38b051a1
TM		 4479 if (!s->session_ctx->new_session_cb(SSL_CONNECTION_GET_SSL(s),
4480 s->session))
ee94ec2e
MC		 4481 SSL_SESSION_free(s->session);
4482 }
0f113f3e
MC		 4483 }
4484
4485 /* auto flush every 255 connections */
4486 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
9ef9088c 4487 TSAN_QUALIFIER int *stat;
acce0557 4488
1fcb4e4d
BK		 4489 if (mode & SSL_SESS_CACHE_CLIENT)
4490 stat = &s->session_ctx->stats.sess_connect_good;
4491 else
4492 stat = &s->session_ctx->stats.sess_accept_good;
acce0557 4493 if ((ssl_tsan_load(s->session_ctx, stat) & 0xff) == 0xff)
0f113f3e 4494 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
0f113f3e
MC		 4495 }
4496}
d02b48c6 4497
3499327b 4498const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
0f113f3e
MC		 4499{
4500 return ctx->method;
4501}
ba168244 4502
3499327b 4503const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
0f113f3e 4504{
26a7d938 4505 return s->method;
0f113f3e 4506}
d02b48c6 4507
4ebb342f 4508int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
0f113f3e 4509{
0f113f3e 4510 int ret = 1;
38b051a1
TM		 4511 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4512
4513 /* TODO(QUIC): Do we want this for QUIC? */
4514 if (sc == NULL
4515 || (s->type != SSL_TYPE_SSL_CONNECTION && s->method != meth))
4516 return 0;
0f113f3e
MC		 4517
4518 if (s->method != meth) {
919ba009 4519 const SSL_METHOD *sm = s->method;
38b051a1 4520 int (*hf) (SSL *) = sc->handshake_func;
0f113f3e 4521
919ba009 4522 if (sm->version == meth->version)
0f113f3e
MC		 4523 s->method = meth;
4524 else {
38b051a1 4525 sm->ssl_deinit(s);
0f113f3e 4526 s->method = meth;
38b051a1 4527 ret = s->method->ssl_init(s);
0f113f3e
MC		 4528 }
4529
919ba009 4530 if (hf == sm->ssl_connect)
38b051a1 4531 sc->handshake_func = meth->ssl_connect;
919ba009 4532 else if (hf == sm->ssl_accept)
38b051a1 4533 sc->handshake_func = meth->ssl_accept;
0f113f3e 4534 }
26a7d938 4535 return ret;
0f113f3e
MC		 4536}
4537
4538int SSL_get_error(const SSL *s, int i)
4539{
4540 int reason;
4541 unsigned long l;
4542 BIO *bio;
38b051a1 4543 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
0f113f3e
MC		 4544
4545 if (i > 0)
26a7d938 4546 return SSL_ERROR_NONE;
0f113f3e 4547
e30c502a 4548#ifndef OPENSSL_NO_QUIC
6d495cc4
HL		 4549 if (IS_QUIC(s)) {
4550 reason = ossl_quic_get_error(s, i);
e30c502a
HL		 4551 if (reason != SSL_ERROR_NONE)
4552 return reason;
4553 }
4554#endif
4555
38b051a1
TM		 4556 if (sc == NULL)
4557 return SSL_ERROR_SSL;
4558
0f113f3e
MC		 4559 /*
4560 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
4561 * where we do encode the error
4562 */
4563 if ((l = ERR_peek_error()) != 0) {
4564 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
26a7d938 4565 return SSL_ERROR_SYSCALL;
0f113f3e 4566 else
26a7d938 4567 return SSL_ERROR_SSL;
0f113f3e
MC		 4568 }
4569
03bacce8 4570#ifndef OPENSSL_NO_QUIC
6d495cc4 4571 if (!IS_QUIC(s))
03bacce8
HL		 4572#endif
4573 {
4574 if (SSL_want_read(s)) {
4575 bio = SSL_get_rbio(s);
4576 if (BIO_should_read(bio))
4577 return SSL_ERROR_WANT_READ;
4578 else if (BIO_should_write(bio))
4579 /*
4580 * This one doesn't make too much sense ... We never try to
4581 * write to the rbio, and an application program where rbio and
4582 * wbio are separate couldn't even know what it should wait for.
4583 * However if we ever set s->rwstate incorrectly (so that we
4584 * have SSL_want_read(s) instead of SSL_want_write(s)) and rbio
4585 * and wbio *are* the same, this test works around that bug; so
4586 * it might be safer to keep it.
4587 */
4588 return SSL_ERROR_WANT_WRITE;
4589 else if (BIO_should_io_special(bio)) {
4590 reason = BIO_get_retry_reason(bio);
4591 if (reason == BIO_RR_CONNECT)
4592 return SSL_ERROR_WANT_CONNECT;
4593 else if (reason == BIO_RR_ACCEPT)
4594 return SSL_ERROR_WANT_ACCEPT;
4595 else
4596 return SSL_ERROR_SYSCALL; /* unknown */
4597 }
4598 }
4599
4600 if (SSL_want_write(s)) {
2e7dc7cd 4601 /*
03bacce8
HL		 4602 * Access wbio directly - in order to use the buffered bio if
4603 * present
2e7dc7cd 4604 */
03bacce8
HL		 4605 bio = sc->wbio;
4606 if (BIO_should_write(bio))
4607 return SSL_ERROR_WANT_WRITE;
4608 else if (BIO_should_read(bio))
4609 /*
4610 * See above (SSL_want_read(s) with BIO_should_write(bio))
4611 */
4612 return SSL_ERROR_WANT_READ;
4613 else if (BIO_should_io_special(bio)) {
4614 reason = BIO_get_retry_reason(bio);
4615 if (reason == BIO_RR_CONNECT)
4616 return SSL_ERROR_WANT_CONNECT;
4617 else if (reason == BIO_RR_ACCEPT)
4618 return SSL_ERROR_WANT_ACCEPT;
4619 else
4620 return SSL_ERROR_SYSCALL;
4621 }
0f113f3e 4622 }
07bbc92c 4623 }
03bacce8 4624
6b1bb98f 4625 if (SSL_want_x509_lookup(s))
26a7d938 4626 return SSL_ERROR_WANT_X509_LOOKUP;
0c3eb279
DDO		 4627 if (SSL_want_retry_verify(s))
4628 return SSL_ERROR_WANT_RETRY_VERIFY;
6b1bb98f 4629 if (SSL_want_async(s))
8051ab2b 4630 return SSL_ERROR_WANT_ASYNC;
6b1bb98f 4631 if (SSL_want_async_job(s))
8051ab2b 4632 return SSL_ERROR_WANT_ASYNC_JOB;
a9c0d8be
DB		 4633 if (SSL_want_client_hello_cb(s))
4634 return SSL_ERROR_WANT_CLIENT_HELLO_CB;
8051ab2b 4635
38b051a1
TM		 4636 if ((sc->shutdown & SSL_RECEIVED_SHUTDOWN) &&
4637 (sc->s3.warn_alert == SSL_AD_CLOSE_NOTIFY))
26a7d938 4638 return SSL_ERROR_ZERO_RETURN;
8051ab2b 4639
26a7d938 4640 return SSL_ERROR_SYSCALL;
0f113f3e 4641}
d02b48c6 4642
add2f5ca
MC		 4643static int ssl_do_handshake_intern(void *vargs)
4644{
38b051a1
TM		 4645 struct ssl_async_args *args = (struct ssl_async_args *)vargs;
4646 SSL *s = args->s;
4647 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
add2f5ca 4648
38b051a1
TM		 4649 if (sc == NULL)
4650 return -1;
add2f5ca 4651
38b051a1 4652 return sc->handshake_func(s);
add2f5ca
MC		 4653}
4654
4f43d0e7 4655int SSL_do_handshake(SSL *s)
0f113f3e
MC		 4656{
4657 int ret = 1;
38b051a1
TM		 4658 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4659
6d495cc4
HL		 4660#ifndef OPENSSL_NO_QUIC
4661 if (IS_QUIC(s))
4662 return ossl_quic_do_handshake(s);
03bacce8 4663#endif
0f113f3e 4664
38b051a1 4665 if (sc->handshake_func == NULL) {
6849b73c 4666 ERR_raise(ERR_LIB_SSL, SSL_R_CONNECTION_TYPE_NOT_SET);
add2f5ca 4667 return -1;
0f113f3e
MC		 4668 }
4669
38b051a1 4670 ossl_statem_check_finish_init(sc, -1);
49e7fe12 4671
c7f47786 4672 s->method->ssl_renegotiate_check(s, 0);
0f113f3e
MC		 4673
4674 if (SSL_in_init(s) || SSL_in_before(s)) {
38b051a1 4675 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
add2f5ca
MC		 4676 struct ssl_async_args args;
4677
09134f18 4678 memset(&args, 0, sizeof(args));
add2f5ca
MC		 4679 args.s = s;
4680
7fecbf6f 4681 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
add2f5ca 4682 } else {
38b051a1 4683 ret = sc->handshake_func(s);
add2f5ca 4684 }
0f113f3e 4685 }
add2f5ca 4686 return ret;
0f113f3e
MC		 4687}
4688
4f43d0e7 4689void SSL_set_accept_state(SSL *s)
0f113f3e 4690{
03bacce8 4691 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
38b051a1 4692
6d495cc4
HL		 4693#ifndef OPENSSL_NO_QUIC
4694 if (IS_QUIC(s)) {
4695 ossl_quic_set_accept_state(s);
38b051a1 4696 return;
03bacce8
HL		 4697 }
4698#endif
38b051a1
TM		 4699
4700 sc->server = 1;
4701 sc->shutdown = 0;
4702 ossl_statem_clear(sc);
4703 sc->handshake_func = s->method->ssl_accept;
6d814fd6
MC		 4704 /* Ignore return value. Its a void public API function */
4705 clear_record_layer(sc);
0f113f3e 4706}
d02b48c6 4707
4f43d0e7 4708void SSL_set_connect_state(SSL *s)
0f113f3e 4709{
03bacce8 4710 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
38b051a1 4711
6d495cc4
HL		 4712#ifndef OPENSSL_NO_QUIC
4713 if (IS_QUIC(s)) {
4714 ossl_quic_set_connect_state(s);
38b051a1 4715 return;
03bacce8
HL		 4716 }
4717#endif
38b051a1
TM		 4718
4719 sc->server = 0;
4720 sc->shutdown = 0;
4721 ossl_statem_clear(sc);
4722 sc->handshake_func = s->method->ssl_connect;
6d814fd6
MC		 4723 /* Ignore return value. Its a void public API function */
4724 clear_record_layer(sc);
0f113f3e 4725}
d02b48c6 4726
4f43d0e7 4727int ssl_undefined_function(SSL *s)
0f113f3e 4728{
6849b73c 4729 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
26a7d938 4730 return 0;
0f113f3e 4731}
d02b48c6 4732
41a15c4f 4733int ssl_undefined_void_function(void)
0f113f3e 4734{
6849b73c 4735 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
26a7d938 4736 return 0;
0f113f3e 4737}
41a15c4f 4738
0821bcd4 4739int ssl_undefined_const_function(const SSL *s)
0f113f3e 4740{
26a7d938 4741 return 0;
0f113f3e 4742}
0821bcd4 4743
2b8fa1d5 4744const SSL_METHOD *ssl_bad_method(int ver)
0f113f3e 4745{
6849b73c 4746 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
26a7d938 4747 return NULL;
0f113f3e 4748}
d02b48c6 4749
3eb2aff4 4750const char *ssl_protocol_to_string(int version)
7d650072 4751{
1287dabd 4752 switch (version)
2abacef1
MC		 4753 {
4754 case TLS1_3_VERSION:
582a17d6 4755 return "TLSv1.3";
2abacef1
MC		 4756
4757 case TLS1_2_VERSION:
7d650072 4758 return "TLSv1.2";
2abacef1
MC		 4759
4760 case TLS1_1_VERSION:
7d650072 4761 return "TLSv1.1";
2abacef1
MC		 4762
4763 case TLS1_VERSION:
ee3a6c64 4764 return "TLSv1";
2abacef1
MC		 4765
4766 case SSL3_VERSION:
7d650072 4767 return "SSLv3";
2abacef1
MC		 4768
4769 case DTLS1_BAD_VER:
7d650072 4770 return "DTLSv0.9";
2abacef1
MC		 4771
4772 case DTLS1_VERSION:
7d650072 4773 return "DTLSv1";
2abacef1
MC		 4774
4775 case DTLS1_2_VERSION:
7d650072 4776 return "DTLSv1.2";
2abacef1
MC		 4777
4778 default:
4779 return "unknown";
4780 }
0f113f3e 4781}
d02b48c6 4782
7d650072
KR		 4783const char *SSL_get_version(const SSL *s)
4784{
38b051a1
TM		 4785 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4786
50769b15
MC		 4787#ifndef OPENSSL_NO_QUIC
4788 /* We only support QUICv1 - so if its QUIC its QUICv1 */
f8636c7e 4789 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
50769b15
MC		 4790 return "QUICv1";
4791#endif
4792
38b051a1
TM		 4793 if (sc == NULL)
4794 return NULL;
4795
4796 return ssl_protocol_to_string(sc->version);
7d650072
KR		 4797}
4798
cee0628e
JC		 4799__owur int SSL_get_handshake_rtt(const SSL *s, uint64_t *rtt)
4800{
4801 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4802
4803 if (sc == NULL)
4804 return -1;
4805 if (sc->ts_msg_write.t <= 0 || sc->ts_msg_read.t <= 0)
4806 return 0; /* data not (yet) available */
4807 if (sc->ts_msg_read.t < sc->ts_msg_write.t)
4808 return -1;
4809
4810 *rtt = ossl_time2us(ossl_time_subtract(sc->ts_msg_read, sc->ts_msg_write));
4811 return 1;
4812}
4813
98732979 4814static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
0f113f3e
MC		 4815{
4816 STACK_OF(X509_NAME) *sk;
4817 X509_NAME *xn;
98732979
MC		 4818 int i;
4819
4820 if (src == NULL) {
4821 *dst = NULL;
4822 return 1;
4823 }
4824
4825 if ((sk = sk_X509_NAME_new_null()) == NULL)
4826 return 0;
4827 for (i = 0; i < sk_X509_NAME_num(src); i++) {
4828 xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
4829 if (xn == NULL) {
4830 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4831 return 0;
4832 }
4833 if (sk_X509_NAME_insert(sk, xn, i) == 0) {
4834 X509_NAME_free(xn);
4835 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4836 return 0;
4837 }
4838 }
4839 *dst = sk;
4840
4841 return 1;
4842}
4843
4844SSL *SSL_dup(SSL *s)
4845{
0f113f3e
MC		 4846 SSL *ret;
4847 int i;
38b051a1
TM		 4848 /* TODO(QUIC): Add a SSL_METHOD function for duplication */
4849 SSL_CONNECTION *retsc;
4850 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4851
4852 if (sc == NULL)
4853 return NULL;
0f113f3e 4854
919ba009
VD		 4855 /* If we're not quiescent, just up_ref! */
4856 if (!SSL_in_init(s) || !SSL_in_before(s)) {
43a07d6d 4857 CRYPTO_UP_REF(&s->references, &i);
919ba009
VD		 4858 return s;
4859 }
4860
4861 /*
4862 * Otherwise, copy configuration state, and session if set.
4863 */
0f113f3e 4864 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
26a7d938 4865 return NULL;
38b051a1
TM		 4866 if ((retsc = SSL_CONNECTION_FROM_SSL_ONLY(ret)) == NULL)
4867 goto err;
0f113f3e 4868
38b051a1 4869 if (sc->session != NULL) {
919ba009
VD		 4870 /*
4871 * Arranges to share the same session via up_ref. This "copies"
4872 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4873 */
61986d32 4874 if (!SSL_copy_session_id(ret, s))
17dd65e6 4875 goto err;
0f113f3e
MC		 4876 } else {
4877 /*
4878 * No session has been established yet, so we have to expect that
4879 * s->cert or ret->cert will be changed later -- they should not both
4880 * point to the same object, and thus we can't use
4881 * SSL_copy_session_id.
4882 */
919ba009
VD		 4883 if (!SSL_set_ssl_method(ret, s->method))
4884 goto err;
0f113f3e 4885
38b051a1
TM		 4886 if (sc->cert != NULL) {
4887 ssl_cert_free(retsc->cert);
4888 retsc->cert = ssl_cert_dup(sc->cert);
4889 if (retsc->cert == NULL)
0f113f3e
MC		 4890 goto err;
4891 }
4892
38b051a1
TM		 4893 if (!SSL_set_session_id_context(ret, sc->sid_ctx,
4894 (int)sc->sid_ctx_length))
69f68237 4895 goto err;
0f113f3e
MC		 4896 }
4897
38b051a1 4898 if (!ssl_dane_dup(retsc, sc))
9f6b22b8 4899 goto err;
38b051a1
TM		 4900 retsc->version = sc->version;
4901 retsc->options = sc->options;
4902 retsc->min_proto_version = sc->min_proto_version;
4903 retsc->max_proto_version = sc->max_proto_version;
4904 retsc->mode = sc->mode;
0f113f3e
MC		 4905 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
4906 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
38b051a1
TM		 4907 retsc->msg_callback = sc->msg_callback;
4908 retsc->msg_callback_arg = sc->msg_callback_arg;
0f113f3e
MC		 4909 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
4910 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
38b051a1 4911 retsc->generate_session_id = sc->generate_session_id;
0f113f3e
MC		 4912
4913 SSL_set_info_callback(ret, SSL_get_info_callback(s));
4914
0f113f3e
MC		 4915 /* copy app data, a little dangerous perhaps */
4916 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
4917 goto err;
4918
38b051a1
TM		 4919 retsc->server = sc->server;
4920 if (sc->handshake_func) {
4921 if (sc->server)
919ba009
VD		 4922 SSL_set_accept_state(ret);
4923 else
4924 SSL_set_connect_state(ret);
4925 }
38b051a1
TM		 4926 retsc->shutdown = sc->shutdown;
4927 retsc->hit = sc->hit;
0f113f3e 4928
38b051a1
TM		 4929 retsc->default_passwd_callback = sc->default_passwd_callback;
4930 retsc->default_passwd_callback_userdata = sc->default_passwd_callback_userdata;
a974e64a 4931
38b051a1 4932 X509_VERIFY_PARAM_inherit(retsc->param, sc->param);
0f113f3e
MC		 4933
4934 /* dup the cipher_list and cipher_list_by_id stacks */
38b051a1
TM		 4935 if (sc->cipher_list != NULL) {
4936 if ((retsc->cipher_list = sk_SSL_CIPHER_dup(sc->cipher_list)) == NULL)
0f113f3e
MC		 4937 goto err;
4938 }
38b051a1
TM		 4939 if (sc->cipher_list_by_id != NULL)
4940 if ((retsc->cipher_list_by_id = sk_SSL_CIPHER_dup(sc->cipher_list_by_id))
0f113f3e
MC		 4941 == NULL)
4942 goto err;
4943
4944 /* Dup the client_CA list */
38b051a1
TM		 4945 if (!dup_ca_names(&retsc->ca_names, sc->ca_names)
4946 || !dup_ca_names(&retsc->client_ca_names, sc->client_ca_names))
98732979
MC		 4947 goto err;
4948
66696478 4949 return ret;
0f113f3e 4950
0f113f3e 4951 err:
66696478
RS		 4952 SSL_free(ret);
4953 return NULL;
0f113f3e 4954}
d02b48c6 4955
0821bcd4 4956X509 *SSL_get_certificate(const SSL *s)
0f113f3e 4957{
38b051a1
TM		 4958 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4959
4960 if (sc == NULL)
4961 return NULL;
4962
4963 if (sc->cert != NULL)
4964 return sc->cert->key->x509;
0f113f3e 4965 else
26a7d938 4966 return NULL;
0f113f3e 4967}
d02b48c6 4968
a25f9adc 4969EVP_PKEY *SSL_get_privatekey(const SSL *s)
0f113f3e 4970{
38b051a1
TM		 4971 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4972
4973 if (sc == NULL)
4974 return NULL;
4975
4976 if (sc->cert != NULL)
4977 return sc->cert->key->privatekey;
0f113f3e 4978 else
26a7d938 4979 return NULL;
0f113f3e 4980}
d02b48c6 4981
a25f9adc 4982X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
0f113f3e
MC		 4983{
4984 if (ctx->cert != NULL)
4985 return ctx->cert->key->x509;
4986 else
4987 return NULL;
4988}
a25f9adc
DSH		 4989
4990EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
0f113f3e
MC		 4991{
4992 if (ctx->cert != NULL)
4993 return ctx->cert->key->privatekey;
4994 else
4995 return NULL;
4996}
a25f9adc 4997
babb3798 4998const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
0f113f3e 4999{
38b051a1
TM		 5000 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5001
5002 if (sc == NULL)
5003 return NULL;
5004
5005 if ((sc->session != NULL) && (sc->session->cipher != NULL))
5006 return sc->session->cipher;
26a7d938 5007 return NULL;
0f113f3e
MC		 5008}
5009
0aed6e44
BK		 5010const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
5011{
38b051a1
TM		 5012 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5013
5014 if (sc == NULL)
5015 return NULL;
5016
5017 return sc->s3.tmp.new_cipher;
0aed6e44
BK		 5018}
5019
3499327b 5020const COMP_METHOD *SSL_get_current_compression(const SSL *s)
0f113f3e 5021{
9a555706 5022#ifndef OPENSSL_NO_COMP
38b051a1
TM		 5023 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5024
5025 if (sc == NULL)
5026 return NULL;
5027
1e76110b 5028 return sc->rlayer.wrlmethod->get_compression(sc->rlayer.wrl);
9a555706
RS		 5029#else
5030 return NULL;
5031#endif
0f113f3e 5032}
377dcdba 5033
3499327b 5034const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
0f113f3e 5035{
9a555706 5036#ifndef OPENSSL_NO_COMP
38b051a1
TM		 5037 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5038
5039 if (sc == NULL)
5040 return NULL;
5041
1e76110b 5042 return sc->rlayer.rrlmethod->get_compression(sc->rlayer.rrl);
9a555706
RS		 5043#else
5044 return NULL;
0f113f3e 5045#endif
9a555706 5046}
0f113f3e 5047
38b051a1 5048int ssl_init_wbio_buffer(SSL_CONNECTION *s)
0f113f3e
MC		 5049{
5050 BIO *bbio;
5051
2e7dc7cd
MC		 5052 if (s->bbio != NULL) {
5053 /* Already buffered. */
5054 return 1;
0f113f3e 5055 }
46417569 5056
2e7dc7cd 5057 bbio = BIO_new(BIO_f_buffer());
25d02f33 5058 if (bbio == NULL || BIO_set_read_buffer_size(bbio, 1) <= 0) {
2e7dc7cd 5059 BIO_free(bbio);
6849b73c 5060 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
46417569 5061 return 0;
0f113f3e 5062 }
2e7dc7cd
MC		 5063 s->bbio = bbio;
5064 s->wbio = BIO_push(bbio, s->wbio);
46417569 5065
b5cf81f7
MC		 5066 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5067
46417569 5068 return 1;
0f113f3e 5069}
413c4f45 5070
38b051a1 5071int ssl_free_wbio_buffer(SSL_CONNECTION *s)
0f113f3e 5072{
62adbcee 5073 /* callers ensure s is never null */
0f113f3e 5074 if (s->bbio == NULL)
b77f3ed1 5075 return 1;
0f113f3e 5076
2e7dc7cd 5077 s->wbio = BIO_pop(s->wbio);
b5cf81f7
MC		 5078 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5079
0f113f3e
MC		 5080 BIO_free(s->bbio);
5081 s->bbio = NULL;
b77f3ed1
MC		 5082
5083 return 1;
0f113f3e
MC		 5084}
5085
5086void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
5087{
5088 ctx->quiet_shutdown = mode;
5089}
58964a49 5090
0821bcd4 5091int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
0f113f3e 5092{
26a7d938 5093 return ctx->quiet_shutdown;
0f113f3e 5094}
58964a49 5095
0f113f3e
MC		 5096void SSL_set_quiet_shutdown(SSL *s, int mode)
5097{
38b051a1
TM		 5098 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5099
5100 /* TODO(QUIC): Do we want this for QUIC? */
5101 if (sc == NULL)
5102 return;
5103
5104 sc->quiet_shutdown = mode;
0f113f3e 5105}
58964a49 5106
0821bcd4 5107int SSL_get_quiet_shutdown(const SSL *s)
0f113f3e 5108{
38b051a1
TM		 5109 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5110
5111 /* TODO(QUIC): Do we want this for QUIC? */
5112 if (sc == NULL)
5113 return 0;
5114
5115 return sc->quiet_shutdown;
0f113f3e 5116}
58964a49 5117
0f113f3e
MC		 5118void SSL_set_shutdown(SSL *s, int mode)
5119{
38b051a1
TM		 5120 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5121
5122 /* TODO(QUIC): Do we want this for QUIC? */
5123 if (sc == NULL)
5124 return;
5125
5126 sc->shutdown = mode;
0f113f3e 5127}
58964a49 5128
0821bcd4 5129int SSL_get_shutdown(const SSL *s)
0f113f3e 5130{
38b051a1
TM		 5131 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5132
5133 /* TODO(QUIC): Do we want this for QUIC? */
5134 if (sc == NULL)
5135 return 0;
5136
5137 return sc->shutdown;
0f113f3e 5138}
58964a49 5139
0821bcd4 5140int SSL_version(const SSL *s)
0f113f3e 5141{
38b051a1
TM		 5142 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5143
50769b15
MC		 5144#ifndef OPENSSL_NO_QUIC
5145 /* We only support QUICv1 - so if its QUIC its QUICv1 */
f8636c7e 5146 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
50769b15
MC		 5147 return OSSL_QUIC1_VERSION;
5148#endif
38b051a1
TM		 5149 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
5150 if (sc == NULL)
5151 return 0;
5152
5153 return sc->version;
6546e9b2
AG		 5154}
5155
5156int SSL_client_version(const SSL *s)
5157{
38b051a1
TM		 5158 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5159
5160 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
5161 if (sc == NULL)
5162 return 0;
5163
5164 return sc->client_version;
0f113f3e 5165}
58964a49 5166
0821bcd4 5167SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
0f113f3e 5168{
6546e9b2 5169 return ssl->ctx;
0f113f3e
MC		 5170}
5171
5172SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
5173{
24a0d393 5174 CERT *new_cert;
38b051a1
TM		 5175 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
5176
5177 /* TODO(QUIC): Do we need this for QUIC support? */
5178 if (sc == NULL)
5179 return NULL;
5180
0f113f3e
MC		 5181 if (ssl->ctx == ctx)
5182 return ssl->ctx;
0f113f3e 5183 if (ctx == NULL)
38b051a1 5184 ctx = sc->session_ctx;
24a0d393
KR		 5185 new_cert = ssl_cert_dup(ctx->cert);
5186 if (new_cert == NULL) {
5187 return NULL;
0f113f3e 5188 }
21181889 5189
38b051a1 5190 if (!custom_exts_copy_flags(&new_cert->custext, &sc->cert->custext)) {
21181889
MC		 5191 ssl_cert_free(new_cert);
5192 return NULL;
5193 }
5194
38b051a1
TM		 5195 ssl_cert_free(sc->cert);
5196 sc->cert = new_cert;
0f113f3e
MC		 5197
5198 /*
5199 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
5200 * so setter APIs must prevent invalid lengths from entering the system.
5201 */
38b051a1 5202 if (!ossl_assert(sc->sid_ctx_length <= sizeof(sc->sid_ctx)))
380a522f 5203 return NULL;
0f113f3e
MC		 5204
5205 /*
5206 * If the session ID context matches that of the parent SSL_CTX,
5207 * inherit it from the new SSL_CTX as well. If however the context does
5208 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
5209 * leave it unchanged.
5210 */
5211 if ((ssl->ctx != NULL) &&
38b051a1
TM		 5212 (sc->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
5213 (memcmp(sc->sid_ctx, ssl->ctx->sid_ctx, sc->sid_ctx_length) == 0)) {
5214 sc->sid_ctx_length = ctx->sid_ctx_length;
5215 memcpy(&sc->sid_ctx, &ctx->sid_ctx, sizeof(sc->sid_ctx));
0f113f3e
MC		 5216 }
5217
16203f7b 5218 SSL_CTX_up_ref(ctx);
a230b26e 5219 SSL_CTX_free(ssl->ctx); /* decrement reference count */
0f113f3e
MC		 5220 ssl->ctx = ctx;
5221
16203f7b 5222 return ssl->ctx;
0f113f3e 5223}
ed3883d2 5224
4f43d0e7 5225int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
0f113f3e 5226{
d8652be0
MC		 5227 return X509_STORE_set_default_paths_ex(ctx->cert_store, ctx->libctx,
5228 ctx->propq);
0f113f3e 5229}
58964a49 5230
d84a7b20
MC		 5231int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
5232{
5233 X509_LOOKUP *lookup;
5234
5235 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
5236 if (lookup == NULL)
5237 return 0;
6dcb100f
RL		 5238
5239 /* We ignore errors, in case the directory doesn't exist */
5240 ERR_set_mark();
5241
d84a7b20
MC		 5242 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
5243
6dcb100f 5244 ERR_pop_to_mark();
d84a7b20
MC		 5245
5246 return 1;
5247}
5248
5249int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
5250{
5251 X509_LOOKUP *lookup;
5252
5253 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
5254 if (lookup == NULL)
5255 return 0;
5256
492bc359 5257 /* We ignore errors, in case the file doesn't exist */
6dcb100f
RL		 5258 ERR_set_mark();
5259
d8652be0
MC		 5260 X509_LOOKUP_load_file_ex(lookup, NULL, X509_FILETYPE_DEFAULT, ctx->libctx,
5261 ctx->propq);
d84a7b20 5262
6dcb100f
RL		 5263 ERR_pop_to_mark();
5264
5265 return 1;
5266}
5267
5268int SSL_CTX_set_default_verify_store(SSL_CTX *ctx)
5269{
5270 X509_LOOKUP *lookup;
5271
5272 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_store());
5273 if (lookup == NULL)
5274 return 0;
5275
5276 /* We ignore errors, in case the directory doesn't exist */
5277 ERR_set_mark();
5278
d8652be0 5279 X509_LOOKUP_add_store_ex(lookup, NULL, ctx->libctx, ctx->propq);
6dcb100f
RL		 5280
5281 ERR_pop_to_mark();
d84a7b20
MC		 5282
5283 return 1;
5284}
5285
6dcb100f
RL		 5286int SSL_CTX_load_verify_file(SSL_CTX *ctx, const char *CAfile)
5287{
d8652be0
MC		 5288 return X509_STORE_load_file_ex(ctx->cert_store, CAfile, ctx->libctx,
5289 ctx->propq);
6dcb100f
RL		 5290}
5291
5292int SSL_CTX_load_verify_dir(SSL_CTX *ctx, const char *CApath)
5293{
5294 return X509_STORE_load_path(ctx->cert_store, CApath);
5295}
5296
5297int SSL_CTX_load_verify_store(SSL_CTX *ctx, const char *CAstore)
5298{
d8652be0
MC		 5299 return X509_STORE_load_store_ex(ctx->cert_store, CAstore, ctx->libctx,
5300 ctx->propq);
6dcb100f
RL		 5301}
5302
303c0028 5303int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
0f113f3e
MC		 5304 const char *CApath)
5305{
6dcb100f
RL		 5306 if (CAfile == NULL && CApath == NULL)
5307 return 0;
5308 if (CAfile != NULL && !SSL_CTX_load_verify_file(ctx, CAfile))
5309 return 0;
5310 if (CApath != NULL && !SSL_CTX_load_verify_dir(ctx, CApath))
5311 return 0;
5312 return 1;
0f113f3e 5313}
58964a49 5314
45d87a1f 5315void SSL_set_info_callback(SSL *ssl,
0f113f3e
MC		 5316 void (*cb) (const SSL *ssl, int type, int val))
5317{
38b051a1
TM		 5318 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5319
5320 if (sc == NULL)
5321 return;
5322
5323 sc->info_callback = cb;
0f113f3e
MC		 5324}
5325
5326/*
5327 * One compiler (Diab DCC) doesn't like argument names in returned function
5328 * pointer.
5329 */
5330void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
5331 int /* type */ ,
5332 int /* val */ ) {
38b051a1
TM		 5333 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5334
5335 if (sc == NULL)
5336 return NULL;
5337
5338 return sc->info_callback;
0f113f3e 5339}
58964a49 5340
0f113f3e
MC		 5341void SSL_set_verify_result(SSL *ssl, long arg)
5342{
38b051a1
TM		 5343 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5344
5345 if (sc == NULL)
5346 return;
5347
5348 sc->verify_result = arg;
0f113f3e 5349}
58964a49 5350
0821bcd4 5351long SSL_get_verify_result(const SSL *ssl)
0f113f3e 5352{
38b051a1
TM		 5353 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5354
5355 if (sc == NULL)
5356 return 0;
5357
5358 return sc->verify_result;
0f113f3e
MC		 5359}
5360
d9f1c639 5361size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
858618e7 5362{
38b051a1
TM		 5363 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5364
5365 if (sc == NULL)
5366 return 0;
5367
6b8f5d0d 5368 if (outlen == 0)
38b051a1
TM		 5369 return sizeof(sc->s3.client_random);
5370 if (outlen > sizeof(sc->s3.client_random))
5371 outlen = sizeof(sc->s3.client_random);
5372 memcpy(out, sc->s3.client_random, outlen);
d9f1c639 5373 return outlen;
858618e7
NM		 5374}
5375
d9f1c639 5376size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
858618e7 5377{
38b051a1
TM		 5378 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5379
5380 if (sc == NULL)
5381 return 0;
5382
6b8f5d0d 5383 if (outlen == 0)
38b051a1
TM		 5384 return sizeof(sc->s3.server_random);
5385 if (outlen > sizeof(sc->s3.server_random))
5386 outlen = sizeof(sc->s3.server_random);
5387 memcpy(out, sc->s3.server_random, outlen);
d9f1c639 5388 return outlen;
858618e7
NM		 5389}
5390
d9f1c639 5391size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
a230b26e 5392 unsigned char *out, size_t outlen)
858618e7 5393{
d9f1c639
MC		 5394 if (outlen == 0)
5395 return session->master_key_length;
8c1a5343 5396 if (outlen > session->master_key_length)
858618e7
NM		 5397 outlen = session->master_key_length;
5398 memcpy(out, session->master_key, outlen);
d9f1c639 5399 return outlen;
858618e7
NM		 5400}
5401
725b0f1e 5402int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
911d63f2
MC		 5403 size_t len)
5404{
5405 if (len > sizeof(sess->master_key))
5406 return 0;
5407
5408 memcpy(sess->master_key, in, len);
5409 sess->master_key_length = len;
911d63f2
MC		 5410 return 1;
5411}
5412
5413
0f113f3e
MC		 5414int SSL_set_ex_data(SSL *s, int idx, void *arg)
5415{
26a7d938 5416 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
0f113f3e
MC		 5417}
5418
5419void *SSL_get_ex_data(const SSL *s, int idx)
5420{
26a7d938 5421 return CRYPTO_get_ex_data(&s->ex_data, idx);
0f113f3e
MC		 5422}
5423
0f113f3e
MC		 5424int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
5425{
26a7d938 5426 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
0f113f3e
MC		 5427}
5428
5429void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
5430{
26a7d938 5431 return CRYPTO_get_ex_data(&s->ex_data, idx);
0f113f3e 5432}
58964a49 5433
0821bcd4 5434X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
0f113f3e 5435{
26a7d938 5436 return ctx->cert_store;
0f113f3e 5437}
413c4f45 5438
0f113f3e
MC		 5439void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
5440{
222561fe 5441 X509_STORE_free(ctx->cert_store);
0f113f3e
MC		 5442 ctx->cert_store = store;
5443}
413c4f45 5444
b50052db
TS		 5445void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
5446{
5447 if (store != NULL)
5448 X509_STORE_up_ref(store);
5449 SSL_CTX_set_cert_store(ctx, store);
5450}
5451
0821bcd4 5452int SSL_want(const SSL *s)
0f113f3e 5453{
38b051a1
TM		 5454 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5455
5456 if (sc == NULL)
5457 return SSL_NOTHING;
5458
5459 return sc->rwstate;
0f113f3e 5460}
413c4f45 5461
ddac1974
NL		 5462#ifndef OPENSSL_NO_PSK
5463int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
0f113f3e
MC		 5464{
5465 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
6849b73c 5466 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
0f113f3e
MC		 5467 return 0;
5468 }
df6da24b 5469 OPENSSL_free(ctx->cert->psk_identity_hint);
0f113f3e 5470 if (identity_hint != NULL) {
7644a9ae 5471 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
df6da24b 5472 if (ctx->cert->psk_identity_hint == NULL)
0f113f3e
MC		 5473 return 0;
5474 } else
df6da24b 5475 ctx->cert->psk_identity_hint = NULL;
0f113f3e
MC		 5476 return 1;
5477}
ddac1974
NL		 5478
5479int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
0f113f3e 5480{
38b051a1
TM		 5481 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5482
5483 if (sc == NULL)
0f113f3e
MC		 5484 return 0;
5485
0f113f3e 5486 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
6849b73c 5487 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
0f113f3e
MC		 5488 return 0;
5489 }
38b051a1 5490 OPENSSL_free(sc->cert->psk_identity_hint);
0f113f3e 5491 if (identity_hint != NULL) {
38b051a1
TM		 5492 sc->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5493 if (sc->cert->psk_identity_hint == NULL)
0f113f3e
MC		 5494 return 0;
5495 } else
38b051a1 5496 sc->cert->psk_identity_hint = NULL;
0f113f3e
MC		 5497 return 1;
5498}
ddac1974
NL		 5499
5500const char *SSL_get_psk_identity_hint(const SSL *s)
0f113f3e 5501{
38b051a1
TM		 5502 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5503
5504 if (sc == NULL || sc->session == NULL)
0f113f3e 5505 return NULL;
38b051a1
TM		 5506
5507 return sc->session->psk_identity_hint;
0f113f3e 5508}
ddac1974
NL		 5509
5510const char *SSL_get_psk_identity(const SSL *s)
0f113f3e 5511{
38b051a1
TM		 5512 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5513
5514 if (sc == NULL || sc->session == NULL)
0f113f3e 5515 return NULL;
38b051a1
TM		 5516
5517 return sc->session->psk_identity;
0f113f3e 5518}
7806f3dd 5519
8cbfcc70 5520void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
0f113f3e 5521{
38b051a1
TM		 5522 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5523
5524 if (sc == NULL)
5525 return;
5526
5527 sc->psk_client_callback = cb;
0f113f3e 5528}
7806f3dd 5529
8cbfcc70 5530void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
0f113f3e
MC		 5531{
5532 ctx->psk_client_callback = cb;
5533}
7806f3dd 5534
8cbfcc70 5535void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
0f113f3e 5536{
38b051a1
TM		 5537 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5538
5539 if (sc == NULL)
5540 return;
5541
5542 sc->psk_server_callback = cb;
0f113f3e 5543}
7806f3dd 5544
8cbfcc70 5545void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
0f113f3e
MC		 5546{
5547 ctx->psk_server_callback = cb;
5548}
5549#endif
5550
f46184bd
MC		 5551void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
5552{
38b051a1
TM		 5553 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5554
5555 if (sc == NULL)
5556 return;
5557
5558 sc->psk_find_session_cb = cb;
f46184bd
MC		 5559}
5560
5561void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
5562 SSL_psk_find_session_cb_func cb)
5563{
5564 ctx->psk_find_session_cb = cb;
5565}
5566
5567void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
5568{
38b051a1
TM		 5569 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5570
5571 if (sc == NULL)
5572 return;
5573
5574 sc->psk_use_session_cb = cb;
f46184bd
MC		 5575}
5576
5577void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
5578 SSL_psk_use_session_cb_func cb)
5579{
5580 ctx->psk_use_session_cb = cb;
5581}
5582
0f113f3e
MC		 5583void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
5584 void (*cb) (int write_p, int version,
5585 int content_type, const void *buf,
5586 size_t len, SSL *ssl, void *arg))
5587{
5588 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5589}
5590
5591void SSL_set_msg_callback(SSL *ssl,
5592 void (*cb) (int write_p, int version,
5593 int content_type, const void *buf,
5594 size_t len, SSL *ssl, void *arg))
5595{
5596 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5597}
a661b653 5598
7c2d4fee 5599void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
0f113f3e
MC		 5600 int (*cb) (SSL *ssl,
5601 int
5602 is_forward_secure))
5603{
5604 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5605 (void (*)(void))cb);
5606}
5607
7c2d4fee 5608void SSL_set_not_resumable_session_callback(SSL *ssl,
0f113f3e
MC		 5609 int (*cb) (SSL *ssl,
5610 int is_forward_secure))
5611{
5612 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5613 (void (*)(void))cb);
5614}
5615
c649d10d
TS		 5616void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
5617 size_t (*cb) (SSL *ssl, int type,
5618 size_t len, void *arg))
5619{
5620 ctx->record_padding_cb = cb;
5621}
5622
5623void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
5624{
5625 ctx->record_padding_arg = arg;
5626}
5627
3499327b 5628void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
c649d10d
TS		 5629{
5630 return ctx->record_padding_arg;
5631}
5632
5633int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
5634{
5635 /* block size of 0 or 1 is basically no padding */
5636 if (block_size == 1)
5637 ctx->block_padding = 0;
5638 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5639 ctx->block_padding = block_size;
5640 else
5641 return 0;
5642 return 1;
5643}
5644
a6d36303 5645int SSL_set_record_padding_callback(SSL *ssl,
c649d10d
TS		 5646 size_t (*cb) (SSL *ssl, int type,
5647 size_t len, void *arg))
5648{
a6d36303 5649 BIO *b;
38b051a1
TM		 5650 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5651
d0638fd5 5652 if (sc == NULL || IS_QUIC_SSL(ssl))
38b051a1 5653 return 0;
a6d36303
VF		 5654
5655 b = SSL_get_wbio(ssl);
5656 if (b == NULL || !BIO_get_ktls_send(b)) {
eb7d6c2a 5657 sc->rlayer.record_padding_cb = cb;
a6d36303
VF		 5658 return 1;
5659 }
5660 return 0;
c649d10d
TS		 5661}
5662
5663void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
5664{
38b051a1
TM		 5665 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5666
5667 if (sc == NULL)
5668 return;
5669
eb7d6c2a 5670 sc->rlayer.record_padding_arg = arg;
c649d10d
TS		 5671}
5672
3499327b 5673void *SSL_get_record_padding_callback_arg(const SSL *ssl)
c649d10d 5674{
38b051a1
TM		 5675 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5676
5677 if (sc == NULL)
5678 return NULL;
5679
eb7d6c2a 5680 return sc->rlayer.record_padding_arg;
c649d10d
TS		 5681}
5682
5683int SSL_set_block_padding(SSL *ssl, size_t block_size)
5684{
38b051a1
TM		 5685 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5686
d0638fd5 5687 if (sc == NULL || (IS_QUIC_SSL(ssl) && block_size > 1))
38b051a1
TM		 5688 return 0;
5689
c649d10d
TS		 5690 /* block size of 0 or 1 is basically no padding */
5691 if (block_size == 1)
eb7d6c2a 5692 sc->rlayer.block_padding = 0;
c649d10d 5693 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
eb7d6c2a 5694 sc->rlayer.block_padding = block_size;
c649d10d
TS		 5695 else
5696 return 0;
5697 return 1;
5698}
5699
9d0a8bb7
MC		 5700int SSL_set_num_tickets(SSL *s, size_t num_tickets)
5701{
38b051a1
TM		 5702 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5703
5704 if (sc == NULL)
5705 return 0;
5706
5707 sc->num_tickets = num_tickets;
9d0a8bb7
MC		 5708
5709 return 1;
5710}
5711
3499327b 5712size_t SSL_get_num_tickets(const SSL *s)
9d0a8bb7 5713{
38b051a1
TM		 5714 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5715
5716 if (sc == NULL)
5717 return 0;
5718
5719 return sc->num_tickets;
9d0a8bb7
MC		 5720}
5721
5722int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
5723{
5724 ctx->num_tickets = num_tickets;
5725
5726 return 1;
5727}
5728
3499327b 5729size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
9d0a8bb7
MC		 5730{
5731 return ctx->num_tickets;
5732}
5733
48fbcbac 5734/* Retrieve handshake hashes */
38b051a1
TM		 5735int ssl_handshake_hash(SSL_CONNECTION *s,
5736 unsigned char *out, size_t outlen,
8c1a5343 5737 size_t *hashlen)
48fbcbac 5738{
6e59a892 5739 EVP_MD_CTX *ctx = NULL;
555cbb32 5740 EVP_MD_CTX *hdgst = s->s3.handshake_dgst;
ed576acd 5741 int hashleni = EVP_MD_CTX_get_size(hdgst);
8c1a5343
MC		 5742 int ret = 0;
5743
f63a17d6 5744 if (hashleni < 0 || (size_t)hashleni > outlen) {
c48ffbcc 5745 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
28ba2541 5746 goto err;
f63a17d6 5747 }
8c1a5343 5748
bfb0641f 5749 ctx = EVP_MD_CTX_new();
147ed5f9
TL		 5750 if (ctx == NULL) {
5751 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6e59a892 5752 goto err;
147ed5f9 5753 }
8c1a5343 5754
6e59a892 5755 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
f63a17d6 5756 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
c48ffbcc 5757 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
8c1a5343 5758 goto err;
f63a17d6 5759 }
8c1a5343
MC		 5760
5761 *hashlen = hashleni;
5762
5763 ret = 1;
48fbcbac 5764 err:
bfb0641f 5765 EVP_MD_CTX_free(ctx);
48fbcbac
DSH		 5766 return ret;
5767}
5768
c04b66b1 5769int SSL_session_reused(const SSL *s)
0f113f3e 5770{
38b051a1
TM		 5771 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5772
5773 if (sc == NULL)
5774 return 0;
5775
5776 return sc->hit;
0f113f3e 5777}
08557cf2 5778
69443116 5779int SSL_is_server(const SSL *s)
0f113f3e 5780{
38b051a1
TM		 5781 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5782
5783 if (sc == NULL)
5784 return 0;
5785
5786 return sc->server;
0f113f3e 5787}
87adf1fa 5788
00db8c60 5789#ifndef OPENSSL_NO_DEPRECATED_1_1_0
47153c72
RS		 5790void SSL_set_debug(SSL *s, int debug)
5791{
5792 /* Old function was do-nothing anyway... */
5793 (void)s;
5794 (void)debug;
5795}
5796#endif
5797
b362ccab 5798void SSL_set_security_level(SSL *s, int level)
0f113f3e 5799{
38b051a1
TM		 5800 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5801
5802 if (sc == NULL)
5803 return;
5804
5805 sc->cert->sec_level = level;
0f113f3e 5806}
b362ccab
DSH		 5807
5808int SSL_get_security_level(const SSL *s)
0f113f3e 5809{
38b051a1
TM		 5810 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5811
5812 if (sc == NULL)
5813 return 0;
5814
5815 return sc->cert->sec_level;
0f113f3e 5816}
b362ccab 5817
0f113f3e 5818void SSL_set_security_callback(SSL *s,
a230b26e
EK		 5819 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5820 int op, int bits, int nid,
5821 void *other, void *ex))
0f113f3e 5822{
38b051a1
TM		 5823 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5824
5825 if (sc == NULL)
5826 return;
5827
5828 sc->cert->sec_cb = cb;
0f113f3e 5829}
b362ccab 5830
a230b26e
EK		 5831int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
5832 const SSL_CTX *ctx, int op,
5833 int bits, int nid, void *other,
5834 void *ex) {
38b051a1
TM		 5835 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5836
5837 if (sc == NULL)
5838 return NULL;
5839
5840 return sc->cert->sec_cb;
0f113f3e 5841}
b362ccab
DSH		 5842
5843void SSL_set0_security_ex_data(SSL *s, void *ex)
0f113f3e 5844{
38b051a1
TM		 5845 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5846
5847 if (sc == NULL)
5848 return;
5849
5850 sc->cert->sec_ex = ex;
0f113f3e 5851}
b362ccab
DSH		 5852
5853void *SSL_get0_security_ex_data(const SSL *s)
0f113f3e 5854{
38b051a1
TM		 5855 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5856
5857 if (sc == NULL)
5858 return NULL;
5859
5860 return sc->cert->sec_ex;
0f113f3e 5861}
b362ccab
DSH		 5862
5863void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
0f113f3e
MC		 5864{
5865 ctx->cert->sec_level = level;
5866}
b362ccab
DSH		 5867
5868int SSL_CTX_get_security_level(const SSL_CTX *ctx)
0f113f3e
MC		 5869{
5870 return ctx->cert->sec_level;
5871}
b362ccab 5872
0f113f3e 5873void SSL_CTX_set_security_callback(SSL_CTX *ctx,
a230b26e
EK		 5874 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5875 int op, int bits, int nid,
5876 void *other, void *ex))
0f113f3e
MC		 5877{
5878 ctx->cert->sec_cb = cb;
5879}
b362ccab 5880
e4646a89
KR		 5881int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
5882 const SSL_CTX *ctx,
0f113f3e
MC		 5883 int op, int bits,
5884 int nid,
5885 void *other,
5886 void *ex) {
5887 return ctx->cert->sec_cb;
5888}
b362ccab
DSH		 5889
5890void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
0f113f3e
MC		 5891{
5892 ctx->cert->sec_ex = ex;
5893}
b362ccab
DSH		 5894
5895void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
0f113f3e
MC		 5896{
5897 return ctx->cert->sec_ex;
5898}
b362ccab 5899
56bd1783 5900uint64_t SSL_CTX_get_options(const SSL_CTX *ctx)
8106cb8b
VD		 5901{
5902 return ctx->options;
5903}
a230b26e 5904
56bd1783 5905uint64_t SSL_get_options(const SSL *s)
8106cb8b 5906{
38b051a1
TM		 5907 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5908
f0d9757c
HL		 5909#ifndef OPENSSL_NO_QUIC
5910 if (IS_QUIC(s))
5911 return ossl_quic_get_options(s);
5912#endif
5913
38b051a1
TM		 5914 if (sc == NULL)
5915 return 0;
5916
5917 return sc->options;
8106cb8b 5918}
a230b26e 5919
56bd1783 5920uint64_t SSL_CTX_set_options(SSL_CTX *ctx, uint64_t op)
8106cb8b
VD		 5921{
5922 return ctx->options |= op;
5923}
a230b26e 5924
56bd1783 5925uint64_t SSL_set_options(SSL *s, uint64_t op)
8106cb8b 5926{
a02571a0 5927 SSL_CONNECTION *sc;
4566dae7 5928 OSSL_PARAM options[2], *opts = options;
38b051a1 5929
a02571a0 5930#ifndef OPENSSL_NO_QUIC
f0d9757c
HL		 5931 if (IS_QUIC(s))
5932 return ossl_quic_set_options(s, op);
a02571a0
TM		 5933#endif
5934
f0d9757c
HL		 5935 sc = SSL_CONNECTION_FROM_SSL(s);
5936 if (sc == NULL)
38b051a1
TM		 5937 return 0;
5938
4566dae7
MC		 5939 sc->options |= op;
5940
5941 *opts++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS,
5942 &sc->options);
5943 *opts = OSSL_PARAM_construct_end();
5944
5945 /* Ignore return value */
5946 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
5947
5948 return sc->options;
8106cb8b 5949}
a230b26e 5950
56bd1783 5951uint64_t SSL_CTX_clear_options(SSL_CTX *ctx, uint64_t op)
8106cb8b
VD		 5952{
5953 return ctx->options &= ~op;
5954}
a230b26e 5955
56bd1783 5956uint64_t SSL_clear_options(SSL *s, uint64_t op)
8106cb8b 5957{
38b051a1
TM		 5958 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5959
f0d9757c
HL		 5960#ifndef OPENSSL_NO_QUIC
5961 if (IS_QUIC(s))
5962 return ossl_quic_clear_options(s, op);
5963#endif
5964
38b051a1
TM		 5965 if (sc == NULL)
5966 return 0;
5967
5968 return sc->options &= ~op;
8106cb8b
VD		 5969}
5970
696178ed
DSH		 5971STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
5972{
38b051a1
TM		 5973 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5974
5975 if (sc == NULL)
5976 return NULL;
5977
5978 return sc->verified_chain;
696178ed
DSH		 5979}
5980
0f113f3e 5981IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
ed29e82a
RP		 5982
5983#ifndef OPENSSL_NO_CT
5984
5985/*
5986 * Moves SCTs from the |src| stack to the |dst| stack.
5987 * The source of each SCT will be set to |origin|.
5988 * If |dst| points to a NULL pointer, a new stack will be created and owned by
5989 * the caller.
5990 * Returns the number of SCTs moved, or a negative integer if an error occurs.
5991 */
a230b26e
EK		 5992static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
5993 sct_source_t origin)
ed29e82a
RP		 5994{
5995 int scts_moved = 0;
5996 SCT *sct = NULL;
5997
5998 if (*dst == NULL) {
5999 *dst = sk_SCT_new_null();
6000 if (*dst == NULL) {
e077455e 6001 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
ed29e82a
RP		 6002 goto err;
6003 }
6004 }
6005
a8086e6b 6006 while ((sct = sk_SCT_pop(src)) != NULL) {
ed29e82a
RP		 6007 if (SCT_set_source(sct, origin) != 1)
6008 goto err;
6009
6010 if (sk_SCT_push(*dst, sct) <= 0)
6011 goto err;
6012 scts_moved += 1;
6013 }
6014
6015 return scts_moved;
a230b26e 6016 err:
ed29e82a 6017 if (sct != NULL)
a230b26e 6018 sk_SCT_push(src, sct); /* Put the SCT back */
cc7113e8 6019 return -1;
ed29e82a
RP		 6020}
6021
6022/*
a230b26e 6023 * Look for data collected during ServerHello and parse if found.
6b13bd1d 6024 * Returns the number of SCTs extracted.
a230b26e 6025 */
38b051a1 6026static int ct_extract_tls_extension_scts(SSL_CONNECTION *s)
ed29e82a
RP		 6027{
6028 int scts_extracted = 0;
6029
aff8c126
RS		 6030 if (s->ext.scts != NULL) {
6031 const unsigned char *p = s->ext.scts;
6032 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
ed29e82a
RP		 6033
6034 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
6035
6036 SCT_LIST_free(scts);
6037 }
6038
6039 return scts_extracted;
6040}
6041
6042/*
6043 * Checks for an OCSP response and then attempts to extract any SCTs found if it
6044 * contains an SCT X509 extension. They will be stored in |s->scts|.
6045 * Returns:
6046 * - The number of SCTs extracted, assuming an OCSP response exists.
6047 * - 0 if no OCSP response exists or it contains no SCTs.
6048 * - A negative integer if an error occurs.
6049 */
38b051a1 6050static int ct_extract_ocsp_response_scts(SSL_CONNECTION *s)
ed29e82a 6051{
a230b26e 6052# ifndef OPENSSL_NO_OCSP
ed29e82a
RP		 6053 int scts_extracted = 0;
6054 const unsigned char *p;
6055 OCSP_BASICRESP *br = NULL;
6056 OCSP_RESPONSE *rsp = NULL;
6057 STACK_OF(SCT) *scts = NULL;
6058 int i;
6059
aff8c126 6060 if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
ed29e82a
RP		 6061 goto err;
6062
aff8c126
RS		 6063 p = s->ext.ocsp.resp;
6064 rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
ed29e82a
RP		 6065 if (rsp == NULL)
6066 goto err;
6067
6068 br = OCSP_response_get1_basic(rsp);
6069 if (br == NULL)
6070 goto err;
6071
6072 for (i = 0; i < OCSP_resp_count(br); ++i) {
6073 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
6074
6075 if (single == NULL)
6076 continue;
6077
a230b26e
EK		 6078 scts =
6079 OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
6080 scts_extracted =
6081 ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
ed29e82a
RP		 6082 if (scts_extracted < 0)
6083 goto err;
6084 }
a230b26e 6085 err:
ed29e82a
RP		 6086 SCT_LIST_free(scts);
6087 OCSP_BASICRESP_free(br);
6088 OCSP_RESPONSE_free(rsp);
6089 return scts_extracted;
a230b26e 6090# else
3e41ac35
MC		 6091 /* Behave as if no OCSP response exists */
6092 return 0;
a230b26e 6093# endif
ed29e82a
RP		 6094}
6095
6096/*
6097 * Attempts to extract SCTs from the peer certificate.
6098 * Return the number of SCTs extracted, or a negative integer if an error
6099 * occurs.
6100 */
38b051a1 6101static int ct_extract_x509v3_extension_scts(SSL_CONNECTION *s)
ed29e82a
RP		 6102{
6103 int scts_extracted = 0;
3f3c7d26 6104 X509 *cert = s->session != NULL ? s->session->peer : NULL;
ed29e82a
RP		 6105
6106 if (cert != NULL) {
6107 STACK_OF(SCT) *scts =
6108 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
6109
6110 scts_extracted =
6111 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
6112
6113 SCT_LIST_free(scts);
6114 }
6115
6116 return scts_extracted;
6117}
6118
6119/*
6120 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
6121 * response (if it exists) and X509v3 extensions in the certificate.
6122 * Returns NULL if an error occurs.
6123 */
6124const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
6125{
38b051a1
TM		 6126 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6127
6128 if (sc == NULL)
6129 return NULL;
6130
6131 if (!sc->scts_parsed) {
6132 if (ct_extract_tls_extension_scts(sc) < 0 ||
6133 ct_extract_ocsp_response_scts(sc) < 0 ||
6134 ct_extract_x509v3_extension_scts(sc) < 0)
ed29e82a
RP		 6135 goto err;
6136
38b051a1 6137 sc->scts_parsed = 1;
ed29e82a 6138 }
38b051a1 6139 return sc->scts;
a230b26e 6140 err:
ed29e82a
RP		 6141 return NULL;
6142}
6143
a230b26e 6144static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx,
43341433 6145 const STACK_OF(SCT) *scts, void *unused_arg)
ed29e82a 6146{
43341433
VD		 6147 return 1;
6148}
6149
a230b26e 6150static int ct_strict(const CT_POLICY_EVAL_CTX * ctx,
43341433
VD		 6151 const STACK_OF(SCT) *scts, void *unused_arg)
6152{
6153 int count = scts != NULL ? sk_SCT_num(scts) : 0;
6154 int i;
ed29e82a 6155
43341433
VD		 6156 for (i = 0; i < count; ++i) {
6157 SCT *sct = sk_SCT_value(scts, i);
6158 int status = SCT_get_validation_status(sct);
6159
6160 if (status == SCT_VALIDATION_STATUS_VALID)
6161 return 1;
6162 }
6849b73c 6163 ERR_raise(ERR_LIB_SSL, SSL_R_NO_VALID_SCTS);
43341433
VD		 6164 return 0;
6165}
6166
6167int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
6168 void *arg)
6169{
38b051a1
TM		 6170 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6171
6172 if (sc == NULL)
6173 return 0;
6174
ed29e82a
RP		 6175 /*
6176 * Since code exists that uses the custom extension handler for CT, look
6177 * for this and throw an error if they have already registered to use CT.
6178 */
6179 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
a230b26e
EK		 6180 TLSEXT_TYPE_signed_certificate_timestamp))
6181 {
6849b73c 6182 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
43341433 6183 return 0;
ed29e82a
RP		 6184 }
6185
ed29e82a 6186 if (callback != NULL) {
a230b26e
EK		 6187 /*
6188 * If we are validating CT, then we MUST accept SCTs served via OCSP
6189 */
ed29e82a 6190 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
43341433 6191 return 0;
ed29e82a
RP		 6192 }
6193
38b051a1
TM		 6194 sc->ct_validation_callback = callback;
6195 sc->ct_validation_callback_arg = arg;
43341433
VD		 6196
6197 return 1;
ed29e82a
RP		 6198}
6199
43341433 6200int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
a230b26e 6201 ssl_ct_validation_cb callback, void *arg)
ed29e82a 6202{
ed29e82a
RP		 6203 /*
6204 * Since code exists that uses the custom extension handler for CT, look for
6205 * this and throw an error if they have already registered to use CT.
6206 */
6207 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
a230b26e
EK		 6208 TLSEXT_TYPE_signed_certificate_timestamp))
6209 {
6849b73c 6210 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
43341433 6211 return 0;
ed29e82a
RP		 6212 }
6213
6214 ctx->ct_validation_callback = callback;
6215 ctx->ct_validation_callback_arg = arg;
43341433 6216 return 1;
ed29e82a
RP		 6217}
6218
43341433 6219int SSL_ct_is_enabled(const SSL *s)
ed29e82a 6220{
38b051a1
TM		 6221 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6222
6223 if (sc == NULL)
6224 return 0;
6225
6226 return sc->ct_validation_callback != NULL;
ed29e82a
RP		 6227}
6228
43341433 6229int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
ed29e82a 6230{
43341433 6231 return ctx->ct_validation_callback != NULL;
ed29e82a
RP		 6232}
6233
38b051a1 6234int ssl_validate_ct(SSL_CONNECTION *s)
ed29e82a
RP		 6235{
6236 int ret = 0;
3f3c7d26 6237 X509 *cert = s->session != NULL ? s->session->peer : NULL;
43341433 6238 X509 *issuer;
b9aec69a 6239 SSL_DANE *dane = &s->dane;
ed29e82a
RP		 6240 CT_POLICY_EVAL_CTX *ctx = NULL;
6241 const STACK_OF(SCT) *scts;
6242
43341433
VD		 6243 /*
6244 * If no callback is set, the peer is anonymous, or its chain is invalid,
6245 * skip SCT validation - just return success. Applications that continue
6246 * handshakes without certificates, with unverified chains, or pinned leaf
6247 * certificates are outside the scope of the WebPKI and CT.
6248 *
6249 * The above exclusions notwithstanding the vast majority of peers will
6250 * have rather ordinary certificate chains validated by typical
6251 * applications that perform certificate verification and therefore will
6252 * process SCTs when enabled.
6253 */
6254 if (s->ct_validation_callback == NULL || cert == NULL ||
6255 s->verify_result != X509_V_OK ||
a230b26e 6256 s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
ed29e82a
RP		 6257 return 1;
6258
43341433
VD		 6259 /*
6260 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
6261 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
6262 */
6263 if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
6264 switch (dane->mtlsa->usage) {
6265 case DANETLS_USAGE_DANE_TA:
6266 case DANETLS_USAGE_DANE_EE:
6267 return 1;
6268 }
ed29e82a
RP		 6269 }
6270
38b051a1
TM		 6271 ctx = CT_POLICY_EVAL_CTX_new_ex(SSL_CONNECTION_GET_CTX(s)->libctx,
6272 SSL_CONNECTION_GET_CTX(s)->propq);
ed29e82a 6273 if (ctx == NULL) {
e077455e 6274 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CT_LIB);
ed29e82a
RP		 6275 goto end;
6276 }
6277
43341433 6278 issuer = sk_X509_value(s->verified_chain, 1);
a1bb7708
RP		 6279 CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
6280 CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
38b051a1
TM		 6281 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx,
6282 SSL_CONNECTION_GET_CTX(s)->ctlog_store);
6a71e06d 6283 CT_POLICY_EVAL_CTX_set_time(
38b051a1 6284 ctx, (uint64_t)SSL_SESSION_get_time(s->session) * 1000);
ed29e82a 6285
38b051a1 6286 scts = SSL_get0_peer_scts(SSL_CONNECTION_GET_SSL(s));
ed29e82a 6287
43341433
VD		 6288 /*
6289 * This function returns success (> 0) only when all the SCTs are valid, 0
6290 * when some are invalid, and < 0 on various internal errors (out of
6291 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
6292 * reason to abort the handshake, that decision is up to the callback.
6293 * Therefore, we error out only in the unexpected case that the return
6294 * value is negative.
6295 *
6296 * XXX: One might well argue that the return value of this function is an
f430ba31 6297 * unfortunate design choice. Its job is only to determine the validation
43341433
VD		 6298 * status of each of the provided SCTs. So long as it correctly separates
6299 * the wheat from the chaff it should return success. Failure in this case
6300 * ought to correspond to an inability to carry out its duties.
6301 */
6302 if (SCT_LIST_validate(scts, ctx) < 0) {
c48ffbcc 6303 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_SCT_VERIFICATION_FAILED);
ed29e82a
RP		 6304 goto end;
6305 }
6306
6307 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
6308 if (ret < 0)
a230b26e 6309 ret = 0; /* This function returns 0 on failure */
f63a17d6 6310 if (!ret)
c48ffbcc 6311 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_CALLBACK_FAILED);
ed29e82a 6312
a230b26e 6313 end:
ed29e82a 6314 CT_POLICY_EVAL_CTX_free(ctx);
f75b34c8
VD		 6315 /*
6316 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
6317 * failure return code here. Also the application may wish the complete
6318 * the handshake, and then disconnect cleanly at a higher layer, after
6319 * checking the verification status of the completed connection.
6320 *
6321 * We therefore force a certificate verification failure which will be
6322 * visible via SSL_get_verify_result() and cached as part of any resumed
6323 * session.
6324 *
6325 * Note: the permissive callback is for information gathering only, always
6326 * returns success, and does not affect verification status. Only the
6327 * strict callback or a custom application-specified callback can trigger
6328 * connection failure or record a verification error.
6329 */
6330 if (ret <= 0)
6331 s->verify_result = X509_V_ERR_NO_VALID_SCTS;
ed29e82a
RP		 6332 return ret;
6333}
6334
43341433
VD		 6335int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
6336{
6337 switch (validation_mode) {
6338 default:
6849b73c 6339 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
43341433
VD		 6340 return 0;
6341 case SSL_CT_VALIDATION_PERMISSIVE:
6342 return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
6343 case SSL_CT_VALIDATION_STRICT:
6344 return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
6345 }
6346}
6347
6348int SSL_enable_ct(SSL *s, int validation_mode)
6349{
6350 switch (validation_mode) {
6351 default:
6849b73c 6352 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
43341433
VD		 6353 return 0;
6354 case SSL_CT_VALIDATION_PERMISSIVE:
6355 return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
6356 case SSL_CT_VALIDATION_STRICT:
6357 return SSL_set_ct_validation_callback(s, ct_strict, NULL);
6358 }
6359}
6360
ed29e82a
RP		 6361int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
6362{
328f36c5 6363 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
ed29e82a
RP		 6364}
6365
6366int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
6367{
6368 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
6369}
6370
a230b26e 6371void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs)
8359b57f
RP		 6372{
6373 CTLOG_STORE_free(ctx->ctlog_store);
6374 ctx->ctlog_store = logs;
6375}
6376
6377const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
6378{
6379 return ctx->ctlog_store;
6380}
6381
6b1bb98f
BK		 6382#endif /* OPENSSL_NO_CT */
6383
a9c0d8be
DB		 6384void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
6385 void *arg)
6b1bb98f 6386{
a9c0d8be
DB		 6387 c->client_hello_cb = cb;
6388 c->client_hello_cb_arg = arg;
6b1bb98f
BK		 6389}
6390
a9c0d8be 6391int SSL_client_hello_isv2(SSL *s)
6b1bb98f 6392{
38b051a1
TM		 6393 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6394
6395 if (sc == NULL)
6396 return 0;
6397
6398 if (sc->clienthello == NULL)
6b1bb98f 6399 return 0;
38b051a1 6400 return sc->clienthello->isv2;
6b1bb98f
BK		 6401}
6402
a9c0d8be 6403unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
6b1bb98f 6404{
38b051a1
TM		 6405 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6406
6407 if (sc == NULL)
6408 return 0;
6409
6410 if (sc->clienthello == NULL)
6b1bb98f 6411 return 0;
38b051a1 6412 return sc->clienthello->legacy_version;
6b1bb98f
BK		 6413}
6414
a9c0d8be 6415size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out)
6b1bb98f 6416{
38b051a1
TM		 6417 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6418
6419 if (sc == NULL)
6420 return 0;
6421
6422 if (sc->clienthello == NULL)
6b1bb98f
BK		 6423 return 0;
6424 if (out != NULL)
38b051a1 6425 *out = sc->clienthello->random;
6b1bb98f
BK		 6426 return SSL3_RANDOM_SIZE;
6427}
6428
a9c0d8be 6429size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
6b1bb98f 6430{
38b051a1
TM		 6431 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6432
6433 if (sc == NULL)
6434 return 0;
6435
6436 if (sc->clienthello == NULL)
6b1bb98f
BK		 6437 return 0;
6438 if (out != NULL)
38b051a1
TM		 6439 *out = sc->clienthello->session_id;
6440 return sc->clienthello->session_id_len;
6b1bb98f
BK		 6441}
6442
a9c0d8be 6443size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
6b1bb98f 6444{
38b051a1
TM		 6445 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6446
6447 if (sc == NULL)
6448 return 0;
6449
6450 if (sc->clienthello == NULL)
6b1bb98f
BK		 6451 return 0;
6452 if (out != NULL)
38b051a1
TM		 6453 *out = PACKET_data(&sc->clienthello->ciphersuites);
6454 return PACKET_remaining(&sc->clienthello->ciphersuites);
6b1bb98f
BK		 6455}
6456
a9c0d8be 6457size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
6b1bb98f 6458{
38b051a1
TM		 6459 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6460
6461 if (sc == NULL)
6462 return 0;
6463
6464 if (sc->clienthello == NULL)
6b1bb98f
BK		 6465 return 0;
6466 if (out != NULL)
38b051a1
TM		 6467 *out = sc->clienthello->compressions;
6468 return sc->clienthello->compressions_len;
6b1bb98f
BK		 6469}
6470
a9c0d8be 6471int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
193b5d76
BK		 6472{
6473 RAW_EXTENSION *ext;
6474 int *present;
6475 size_t num = 0, i;
38b051a1 6476 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
193b5d76 6477
38b051a1 6478 if (sc == NULL)
193b5d76 6479 return 0;
38b051a1
TM		 6480
6481 if (sc->clienthello == NULL || out == NULL || outlen == NULL)
6482 return 0;
6483 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6484 ext = sc->clienthello->pre_proc_exts + i;
193b5d76
BK		 6485 if (ext->present)
6486 num++;
6487 }
6fda11ae 6488 if (num == 0) {
6489 *out = NULL;
6490 *outlen = 0;
6491 return 1;
6492 }
e077455e 6493 if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL)
193b5d76 6494 return 0;
38b051a1
TM		 6495 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6496 ext = sc->clienthello->pre_proc_exts + i;
193b5d76
BK		 6497 if (ext->present) {
6498 if (ext->received_order >= num)
6499 goto err;
6500 present[ext->received_order] = ext->type;
6501 }
6502 }
6503 *out = present;
6504 *outlen = num;
6505 return 1;
6506 err:
6507 OPENSSL_free(present);
6508 return 0;
6509}
6510
13a53fbf
PL		 6511int SSL_client_hello_get_extension_order(SSL *s, uint16_t *exts, size_t *num_exts)
6512{
6513 RAW_EXTENSION *ext;
6514 size_t num = 0, i;
38b051a1
TM		 6515 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6516
6517 if (sc == NULL)
6518 return 0;
13a53fbf 6519
38b051a1 6520 if (sc->clienthello == NULL || num_exts == NULL)
13a53fbf 6521 return 0;
38b051a1
TM		 6522 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6523 ext = sc->clienthello->pre_proc_exts + i;
13a53fbf
PL		 6524 if (ext->present)
6525 num++;
6526 }
6527 if (num == 0) {
6528 *num_exts = 0;
6529 return 1;
6530 }
6531 if (exts == NULL) {
6532 *num_exts = num;
6533 return 1;
6534 }
6535 if (*num_exts < num)
6536 return 0;
38b051a1
TM		 6537 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6538 ext = sc->clienthello->pre_proc_exts + i;
13a53fbf
PL		 6539 if (ext->present) {
6540 if (ext->received_order >= num)
6541 return 0;
6542 exts[ext->received_order] = ext->type;
6543 }
6544 }
6545 *num_exts = num;
6546 return 1;
6547}
6548
a9c0d8be 6549int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
6b1bb98f
BK		 6550 size_t *outlen)
6551{
6552 size_t i;
6553 RAW_EXTENSION *r;
38b051a1 6554 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6b1bb98f 6555
38b051a1 6556 if (sc == NULL)
6b1bb98f 6557 return 0;
38b051a1
TM		 6558
6559 if (sc->clienthello == NULL)
6560 return 0;
6561 for (i = 0; i < sc->clienthello->pre_proc_exts_len; ++i) {
6562 r = sc->clienthello->pre_proc_exts + i;
6b1bb98f
BK		 6563 if (r->present && r->type == type) {
6564 if (out != NULL)
6565 *out = PACKET_data(&r->data);
6566 if (outlen != NULL)
6567 *outlen = PACKET_remaining(&r->data);
6568 return 1;
6569 }
6570 }
6571 return 0;
6572}
2faa1b48 6573
a58eb06d
TS		 6574int SSL_free_buffers(SSL *ssl)
6575{
38b051a1
TM		 6576 RECORD_LAYER *rl;
6577 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6578
6579 if (sc == NULL)
6580 return 0;
6581
6582 rl = &sc->rlayer;
a58eb06d 6583
7eb39ecb
MC		 6584 return rl->rrlmethod->free_buffers(rl->rrl)
6585 && rl->wrlmethod->free_buffers(rl->wrl);
a58eb06d
TS		 6586}
6587
6588int SSL_alloc_buffers(SSL *ssl)
6589{
7eb39ecb 6590 RECORD_LAYER *rl;
38b051a1
TM		 6591 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6592
6593 if (sc == NULL)
6594 return 0;
6595
7eb39ecb
MC		 6596 rl = &sc->rlayer;
6597
6598 return rl->rrlmethod->alloc_buffers(rl->rrl)
6599 && rl->wrlmethod->alloc_buffers(rl->wrl);
a58eb06d
TS		 6600}
6601
2faa1b48
CB		 6602void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
6603{
6604 ctx->keylog_callback = cb;
6605}
6606
6607SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
6608{
6609 return ctx->keylog_callback;
6610}
6611
6612static int nss_keylog_int(const char *prefix,
38b051a1 6613 SSL_CONNECTION *sc,
2faa1b48
CB		 6614 const uint8_t *parameter_1,
6615 size_t parameter_1_len,
6616 const uint8_t *parameter_2,
6617 size_t parameter_2_len)
6618{
6619 char *out = NULL;
6620 char *cursor = NULL;
6621 size_t out_len = 0;
6622 size_t i;
6623 size_t prefix_len;
38b051a1 6624 SSL_CTX *sctx = SSL_CONNECTION_GET_CTX(sc);
2faa1b48 6625
38b051a1 6626 if (sctx->keylog_callback == NULL)
20870286 6627 return 1;
2faa1b48
CB		 6628
6629 /*
6630 * Our output buffer will contain the following strings, rendered with
6631 * space characters in between, terminated by a NULL character: first the
6632 * prefix, then the first parameter, then the second parameter. The
6633 * meaning of each parameter depends on the specific key material being
6634 * logged. Note that the first and second parameters are encoded in
6635 * hexadecimal, so we need a buffer that is twice their lengths.
6636 */
6637 prefix_len = strlen(prefix);
e931f370 6638 out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
e077455e 6639 if ((out = cursor = OPENSSL_malloc(out_len)) == NULL)
2faa1b48 6640 return 0;
2faa1b48
CB		 6641
6642 strcpy(cursor, prefix);
6643 cursor += prefix_len;
6644 *cursor++ = ' ';
6645
6646 for (i = 0; i < parameter_1_len; i++) {
6647 sprintf(cursor, "%02x", parameter_1[i]);
6648 cursor += 2;
6649 }
6650 *cursor++ = ' ';
6651
6652 for (i = 0; i < parameter_2_len; i++) {
6653 sprintf(cursor, "%02x", parameter_2[i]);
6654 cursor += 2;
6655 }
6656 *cursor = '\0';
6657
38b051a1 6658 sctx->keylog_callback(SSL_CONNECTION_GET_SSL(sc), (const char *)out);
e931f370 6659 OPENSSL_clear_free(out, out_len);
2faa1b48
CB		 6660 return 1;
6661
6662}
6663
38b051a1 6664int ssl_log_rsa_client_key_exchange(SSL_CONNECTION *sc,
2faa1b48
CB		 6665 const uint8_t *encrypted_premaster,
6666 size_t encrypted_premaster_len,
6667 const uint8_t *premaster,
6668 size_t premaster_len)
6669{
6670 if (encrypted_premaster_len < 8) {
38b051a1 6671 SSLfatal(sc, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
2faa1b48
CB		 6672 return 0;
6673 }
6674
f0deb4d3 6675 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
2faa1b48 6676 return nss_keylog_int("RSA",
38b051a1 6677 sc,
2faa1b48 6678 encrypted_premaster,
f0deb4d3 6679 8,
2faa1b48
CB		 6680 premaster,
6681 premaster_len);
6682}
6683
38b051a1 6684int ssl_log_secret(SSL_CONNECTION *sc,
2c7bd692
CB		 6685 const char *label,
6686 const uint8_t *secret,
6687 size_t secret_len)
2faa1b48 6688{
2c7bd692 6689 return nss_keylog_int(label,
38b051a1
TM		 6690 sc,
6691 sc->s3.client_random,
2c7bd692
CB		 6692 SSL3_RANDOM_SIZE,
6693 secret,
6694 secret_len);
2faa1b48
CB		 6695}
6696
ccb8e6e0
BK		 6697#define SSLV2_CIPHER_LEN 3
6698
38b051a1 6699int ssl_cache_cipherlist(SSL_CONNECTION *s, PACKET *cipher_suites, int sslv2format)
ccb8e6e0 6700{
ccb8e6e0 6701 int n;
ccb8e6e0
BK		 6702
6703 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6704
6705 if (PACKET_remaining(cipher_suites) == 0) {
c48ffbcc 6706 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
90134d98 6707 return 0;
ccb8e6e0
BK		 6708 }
6709
6710 if (PACKET_remaining(cipher_suites) % n != 0) {
c48ffbcc 6711 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
90134d98 6712 return 0;
ccb8e6e0
BK		 6713 }
6714
555cbb32
TS		 6715 OPENSSL_free(s->s3.tmp.ciphers_raw);
6716 s->s3.tmp.ciphers_raw = NULL;
6717 s->s3.tmp.ciphers_rawlen = 0;
ccb8e6e0
BK		 6718
6719 if (sslv2format) {
6720 size_t numciphers = PACKET_remaining(cipher_suites) / n;
6721 PACKET sslv2ciphers = *cipher_suites;
6722 unsigned int leadbyte;
6723 unsigned char *raw;
6724
6725 /*
6726 * We store the raw ciphers list in SSLv3+ format so we need to do some
6727 * preprocessing to convert the list first. If there are any SSLv2 only
6728 * ciphersuites with a non-zero leading byte then we are going to
6729 * slightly over allocate because we won't store those. But that isn't a
6730 * problem.
6731 */
6732 raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
555cbb32 6733 s->s3.tmp.ciphers_raw = raw;
ccb8e6e0 6734 if (raw == NULL) {
e077455e 6735 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
f63a17d6 6736 return 0;
ccb8e6e0 6737 }
555cbb32 6738 for (s->s3.tmp.ciphers_rawlen = 0;
ccb8e6e0
BK		 6739 PACKET_remaining(&sslv2ciphers) > 0;
6740 raw += TLS_CIPHER_LEN) {
6741 if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
6742 || (leadbyte == 0
6743 && !PACKET_copy_bytes(&sslv2ciphers, raw,
6744 TLS_CIPHER_LEN))
6745 || (leadbyte != 0
6746 && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
c48ffbcc 6747 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_PACKET);
555cbb32
TS		 6748 OPENSSL_free(s->s3.tmp.ciphers_raw);
6749 s->s3.tmp.ciphers_raw = NULL;
6750 s->s3.tmp.ciphers_rawlen = 0;
f63a17d6 6751 return 0;
ccb8e6e0
BK		 6752 }
6753 if (leadbyte == 0)
555cbb32 6754 s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN;
ccb8e6e0 6755 }
555cbb32
TS		 6756 } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw,
6757 &s->s3.tmp.ciphers_rawlen)) {
c48ffbcc 6758 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
f63a17d6 6759 return 0;
ccb8e6e0 6760 }
90134d98 6761 return 1;
90134d98
BK		 6762}
6763
6764int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
6765 int isv2format, STACK_OF(SSL_CIPHER) **sk,
6766 STACK_OF(SSL_CIPHER) **scsvs)
6767{
90134d98 6768 PACKET pkt;
38b051a1
TM		 6769 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6770
6771 if (sc == NULL)
6772 return 0;
90134d98
BK		 6773
6774 if (!PACKET_buf_init(&pkt, bytes, len))
6775 return 0;
38b051a1 6776 return ossl_bytes_to_cipher_list(sc, &pkt, sk, scsvs, isv2format, 0);
90134d98
BK		 6777}
6778
38b051a1
TM		 6779int ossl_bytes_to_cipher_list(SSL_CONNECTION *s, PACKET *cipher_suites,
6780 STACK_OF(SSL_CIPHER) **skp,
6781 STACK_OF(SSL_CIPHER) **scsvs_out,
6782 int sslv2format, int fatal)
90134d98
BK		 6783{
6784 const SSL_CIPHER *c;
6785 STACK_OF(SSL_CIPHER) *sk = NULL;
6786 STACK_OF(SSL_CIPHER) *scsvs = NULL;
6787 int n;
6788 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
6789 unsigned char cipher[SSLV2_CIPHER_LEN];
6790
6791 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6792
6793 if (PACKET_remaining(cipher_suites) == 0) {
f63a17d6 6794 if (fatal)
c48ffbcc 6795 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
f63a17d6 6796 else
6849b73c 6797 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHERS_SPECIFIED);
90134d98
BK		 6798 return 0;
6799 }
6800
6801 if (PACKET_remaining(cipher_suites) % n != 0) {
f63a17d6 6802 if (fatal)
c48ffbcc 6803 SSLfatal(s, SSL_AD_DECODE_ERROR,
f63a17d6
MC		 6804 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6805 else
6849b73c 6806 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
90134d98
BK		 6807 return 0;
6808 }
6809
6810 sk = sk_SSL_CIPHER_new_null();
6811 scsvs = sk_SSL_CIPHER_new_null();
6812 if (sk == NULL || scsvs == NULL) {
f63a17d6 6813 if (fatal)
e077455e 6814 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
f63a17d6 6815 else
e077455e 6816 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
90134d98
BK		 6817 goto err;
6818 }
ccb8e6e0
BK		 6819
6820 while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
6821 /*
6822 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
6823 * first byte set to zero, while true SSLv2 ciphers have a non-zero
6824 * first byte. We don't support any true SSLv2 ciphers, so skip them.
6825 */
6826 if (sslv2format && cipher[0] != '\0')
6827 continue;
6828
ccb8e6e0
BK		 6829 /* For SSLv2-compat, ignore leading 0-byte. */
6830 c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
6831 if (c != NULL) {
90134d98
BK		 6832 if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
6833 (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
f63a17d6 6834 if (fatal)
e077455e 6835 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
f63a17d6 6836 else
e077455e 6837 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
ccb8e6e0
BK		 6838 goto err;
6839 }
6840 }
6841 }
6842 if (PACKET_remaining(cipher_suites) > 0) {
f63a17d6 6843 if (fatal)
c48ffbcc 6844 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_LENGTH);
f63a17d6 6845 else
6849b73c 6846 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
ccb8e6e0
BK		 6847 goto err;
6848 }
6849
90134d98
BK		 6850 if (skp != NULL)
6851 *skp = sk;
6852 else
6853 sk_SSL_CIPHER_free(sk);
6854 if (scsvs_out != NULL)
6855 *scsvs_out = scsvs;
6856 else
6857 sk_SSL_CIPHER_free(scsvs);
6858 return 1;
ccb8e6e0
BK		 6859 err:
6860 sk_SSL_CIPHER_free(sk);
90134d98
BK		 6861 sk_SSL_CIPHER_free(scsvs);
6862 return 0;
ccb8e6e0 6863}
3fc8d856
MC		 6864
6865int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
6866{
6867 ctx->max_early_data = max_early_data;
6868
6869 return 1;
6870}
6871
46dcb945 6872uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
3fc8d856
MC		 6873{
6874 return ctx->max_early_data;
6875}
6876
6877int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
6878{
38b051a1
TM		 6879 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6880
6881 if (sc == NULL)
6882 return 0;
6883
6884 sc->max_early_data = max_early_data;
3fc8d856
MC		 6885
6886 return 1;
6887}
6888
a8e75d56 6889uint32_t SSL_get_max_early_data(const SSL *s)
3fc8d856 6890{
38b051a1
TM		 6891 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6892
6893 if (sc == NULL)
6894 return 0;
6895
6896 return sc->max_early_data;
3fc8d856 6897}
ae3947de 6898
4e8548e8
MC		 6899int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
6900{
6901 ctx->recv_max_early_data = recv_max_early_data;
6902
6903 return 1;
6904}
6905
6906uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
6907{
6908 return ctx->recv_max_early_data;
6909}
6910
6911int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
6912{
38b051a1
TM		 6913 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6914
6915 if (sc == NULL)
6916 return 0;
6917
6918 sc->recv_max_early_data = recv_max_early_data;
4e8548e8
MC		 6919
6920 return 1;
6921}
6922
6923uint32_t SSL_get_recv_max_early_data(const SSL *s)
6924{
38b051a1
TM		 6925 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6926
6927 if (sc == NULL)
6928 return 0;
6929
6930 return sc->recv_max_early_data;
4e8548e8
MC		 6931}
6932
38b051a1 6933__owur unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION *sc)
cf72c757
F		 6934{
6935 /* Return any active Max Fragment Len extension */
38b051a1
TM		 6936 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session))
6937 return GET_MAX_FRAGMENT_LENGTH(sc->session);
cf72c757
F		 6938
6939 /* return current SSL connection setting */
38b051a1 6940 return sc->max_send_fragment;
cf72c757
F		 6941}
6942
38b051a1 6943__owur unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION *sc)
cf72c757
F		 6944{
6945 /* Return a value regarding an active Max Fragment Len extension */
38b051a1
TM		 6946 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session)
6947 && sc->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(sc->session))
6948 return GET_MAX_FRAGMENT_LENGTH(sc->session);
cf72c757
F		 6949
6950 /* else limit |split_send_fragment| to current |max_send_fragment| */
38b051a1
TM		 6951 if (sc->split_send_fragment > sc->max_send_fragment)
6952 return sc->max_send_fragment;
cf72c757
F		 6953
6954 /* return current SSL connection setting */
38b051a1 6955 return sc->split_send_fragment;
cf72c757 6956}
042c5753
MC		 6957
6958int SSL_stateless(SSL *s)
6959{
6960 int ret;
38b051a1
TM		 6961 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6962
6963 /* TODO(QUIC): This will need further work. */
6964 if (sc == NULL)
6965 return 0;
042c5753
MC		 6966
6967 /* Ensure there is no state left over from a previous invocation */
6968 if (!SSL_clear(s))
d6bb50a5 6969 return 0;
042c5753
MC		 6970
6971 ERR_clear_error();
6972
38b051a1 6973 sc->s3.flags |= TLS1_FLAGS_STATELESS;
042c5753 6974 ret = SSL_accept(s);
38b051a1 6975 sc->s3.flags &= ~TLS1_FLAGS_STATELESS;
042c5753 6976
38b051a1 6977 if (ret > 0 && sc->ext.cookieok)
c36001c3
MC		 6978 return 1;
6979
38b051a1 6980 if (sc->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(sc))
e440f513
MC		 6981 return 0;
6982
6983 return -1;
042c5753 6984}
9d75dce3 6985
e97be718
MC		 6986void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
6987{
6988 ctx->pha_enabled = val;
6989}
6990
32097b33 6991void SSL_set_post_handshake_auth(SSL *ssl, int val)
9d75dce3 6992{
38b051a1 6993 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
9ea0e729
HL		 6994#ifndef OPENSSL_NO_QUIC
6995 QUIC_CONNECTION *qc = QUIC_CONNECTION_FROM_SSL(ssl);
6996
6997 if (qc != NULL)
6998 return;
6999#endif
38b051a1
TM		 7000
7001 if (sc == NULL)
7002 return;
7003
7004 sc->pha_enabled = val;
9d75dce3
TS		 7005}
7006
7007int SSL_verify_client_post_handshake(SSL *ssl)
7008{
38b051a1 7009 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
9ea0e729
HL		 7010#ifndef OPENSSL_NO_QUIC
7011 QUIC_CONNECTION *qc = QUIC_CONNECTION_FROM_SSL(ssl);
7012
7013 if (qc != NULL) {
7014 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
7015 return 0;
7016 }
7017#endif
38b051a1
TM		 7018
7019 if (sc == NULL)
7020 return 0;
7021
7022 if (!SSL_CONNECTION_IS_TLS13(sc)) {
6849b73c 7023 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
9d75dce3
TS		 7024 return 0;
7025 }
38b051a1 7026 if (!sc->server) {
6849b73c 7027 ERR_raise(ERR_LIB_SSL, SSL_R_NOT_SERVER);
9d75dce3
TS		 7028 return 0;
7029 }
7030
7031 if (!SSL_is_init_finished(ssl)) {
6849b73c 7032 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
9d75dce3
TS		 7033 return 0;
7034 }
7035
38b051a1 7036 switch (sc->post_handshake_auth) {
9d75dce3 7037 case SSL_PHA_NONE:
6849b73c 7038 ERR_raise(ERR_LIB_SSL, SSL_R_EXTENSION_NOT_RECEIVED);
9d75dce3
TS		 7039 return 0;
7040 default:
7041 case SSL_PHA_EXT_SENT:
6849b73c 7042 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
9d75dce3
TS		 7043 return 0;
7044 case SSL_PHA_EXT_RECEIVED:
7045 break;
7046 case SSL_PHA_REQUEST_PENDING:
6849b73c 7047 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_PENDING);
9d75dce3
TS		 7048 return 0;
7049 case SSL_PHA_REQUESTED:
6849b73c 7050 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_SENT);
9d75dce3
TS		 7051 return 0;
7052 }
7053
38b051a1 7054 sc->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
9d75dce3
TS		 7055
7056 /* checks verify_mode and algorithm_auth */
38b051a1
TM		 7057 if (!send_certificate_request(sc)) {
7058 sc->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
6849b73c 7059 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CONFIG);
9d75dce3
TS		 7060 return 0;
7061 }
7062
38b051a1 7063 ossl_statem_set_in_init(sc, 1);
9d75dce3
TS		 7064 return 1;
7065}
df0fed9a
TS		 7066
7067int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
7068 SSL_CTX_generate_session_ticket_fn gen_cb,
7069 SSL_CTX_decrypt_session_ticket_fn dec_cb,
7070 void *arg)
7071{
7072 ctx->generate_ticket_cb = gen_cb;
7073 ctx->decrypt_ticket_cb = dec_cb;
7074 ctx->ticket_cb_data = arg;
7075 return 1;
7076}
c9598459
MC		 7077
7078void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
7079 SSL_allow_early_data_cb_fn cb,
7080 void *arg)
7081{
7082 ctx->allow_early_data_cb = cb;
7083 ctx->allow_early_data_cb_data = arg;
7084}
7085
7086void SSL_set_allow_early_data_cb(SSL *s,
7087 SSL_allow_early_data_cb_fn cb,
7088 void *arg)
7089{
38b051a1
TM		 7090 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7091
7092 if (sc == NULL)
7093 return;
7094
7095 sc->allow_early_data_cb = cb;
7096 sc->allow_early_data_cb_data = arg;
c9598459 7097}
c8f6c28a 7098
b4250010 7099const EVP_CIPHER *ssl_evp_cipher_fetch(OSSL_LIB_CTX *libctx,
c8f6c28a
MC		 7100 int nid,
7101 const char *properties)
7102{
301fcb28 7103 const EVP_CIPHER *ciph;
5fcb97c6 7104
301fcb28
MC		 7105 ciph = tls_get_cipher_from_engine(nid);
7106 if (ciph != NULL)
7107 return ciph;
0618b62c 7108
c8f6c28a 7109 /*
301fcb28
MC		 7110 * If there is no engine cipher then we do an explicit fetch. This may fail
7111 * and that could be ok
c8f6c28a 7112 */
5fcb97c6
MC		 7113 ERR_set_mark();
7114 ciph = EVP_CIPHER_fetch(libctx, OBJ_nid2sn(nid), properties);
7115 ERR_pop_to_mark();
7116 return ciph;
c8f6c28a
MC		 7117}
7118
7119
7120int ssl_evp_cipher_up_ref(const EVP_CIPHER *cipher)
7121{
7122 /* Don't up-ref an implicit EVP_CIPHER */
ed576acd 7123 if (EVP_CIPHER_get0_provider(cipher) == NULL)
c8f6c28a
MC		 7124 return 1;
7125
7126 /*
7127 * The cipher was explicitly fetched and therefore it is safe to cast
7128 * away the const
7129 */
7130 return EVP_CIPHER_up_ref((EVP_CIPHER *)cipher);
7131}
7132
7133void ssl_evp_cipher_free(const EVP_CIPHER *cipher)
7134{
7135 if (cipher == NULL)
7136 return;
7137
ed576acd 7138 if (EVP_CIPHER_get0_provider(cipher) != NULL) {
c8f6c28a
MC		 7139 /*
7140 * The cipher was explicitly fetched and therefore it is safe to cast
7141 * away the const
7142 */
7143 EVP_CIPHER_free((EVP_CIPHER *)cipher);
7144 }
7145}
7146
b4250010 7147const EVP_MD *ssl_evp_md_fetch(OSSL_LIB_CTX *libctx,
c8f6c28a
MC		 7148 int nid,
7149 const char *properties)
7150{
301fcb28 7151 const EVP_MD *md;
5fcb97c6 7152
301fcb28
MC		 7153 md = tls_get_digest_from_engine(nid);
7154 if (md != NULL)
7155 return md;
c8f6c28a
MC		 7156
7157 /* Otherwise we do an explicit fetch */
5fcb97c6
MC		 7158 ERR_set_mark();
7159 md = EVP_MD_fetch(libctx, OBJ_nid2sn(nid), properties);
7160 ERR_pop_to_mark();
7161 return md;
c8f6c28a
MC		 7162}
7163
7164int ssl_evp_md_up_ref(const EVP_MD *md)
7165{
7166 /* Don't up-ref an implicit EVP_MD */
ed576acd 7167 if (EVP_MD_get0_provider(md) == NULL)
c8f6c28a
MC		 7168 return 1;
7169
7170 /*
7171 * The digest was explicitly fetched and therefore it is safe to cast
7172 * away the const
7173 */
7174 return EVP_MD_up_ref((EVP_MD *)md);
7175}
7176
7177void ssl_evp_md_free(const EVP_MD *md)
7178{
7179 if (md == NULL)
7180 return;
7181
ed576acd 7182 if (EVP_MD_get0_provider(md) != NULL) {
c8f6c28a
MC		 7183 /*
7184 * The digest was explicitly fetched and therefore it is safe to cast
7185 * away the const
7186 */
7187 EVP_MD_free((EVP_MD *)md);
7188 }
7189}
163f6dc1
MC		 7190
7191int SSL_set0_tmp_dh_pkey(SSL *s, EVP_PKEY *dhpkey)
7192{
38b051a1
TM		 7193 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7194
7195 if (sc == NULL)
7196 return 0;
7197
7198 if (!ssl_security(sc, SSL_SECOP_TMP_DH,
ed576acd 7199 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
276d6c68 7200 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
163f6dc1
MC		 7201 return 0;
7202 }
38b051a1
TM		 7203 EVP_PKEY_free(sc->cert->dh_tmp);
7204 sc->cert->dh_tmp = dhpkey;
163f6dc1
MC		 7205 return 1;
7206}
7207
7208int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX *ctx, EVP_PKEY *dhpkey)
7209{
7210 if (!ssl_ctx_security(ctx, SSL_SECOP_TMP_DH,
ed576acd 7211 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
276d6c68 7212 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
163f6dc1
MC		 7213 return 0;
7214 }
7215 EVP_PKEY_free(ctx->cert->dh_tmp);
7216 ctx->cert->dh_tmp = dhpkey;
7217 return 1;
7218}
68801bcb 7219
03bacce8 7220/* QUIC-specific methods which are supported on QUIC connections only. */
6084e04b 7221int SSL_handle_events(SSL *s)
03bacce8
HL		 7222{
7223 SSL_CONNECTION *sc;
03bacce8 7224
6d495cc4
HL		 7225#ifndef OPENSSL_NO_QUIC
7226 if (IS_QUIC(s))
6084e04b 7227 return ossl_quic_handle_events(s);
03bacce8
HL		 7228#endif
7229
7230 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7231 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc))
fbe2573d
HL		 7232 /*
7233 * DTLSv1_handle_timeout returns 0 if the timer wasn't expired yet,
7234 * which we consider a success case. Theoretically DTLSv1_handle_timeout
7235 * can also return 0 if s is NULL or not a DTLS object, but we've
7236 * already ruled out those possibilities above, so this is not possible
7237 * here. Thus the only failure cases are where DTLSv1_handle_timeout
7238 * returns -1.
7239 */
7240 return DTLSv1_handle_timeout(s) >= 0;
03bacce8 7241
fbe2573d 7242 return 1;
03bacce8
HL		 7243}
7244
7ea49713 7245int SSL_get_event_timeout(SSL *s, struct timeval *tv, int *is_infinite)
03bacce8
HL		 7246{
7247 SSL_CONNECTION *sc;
03bacce8 7248
6d495cc4
HL		 7249#ifndef OPENSSL_NO_QUIC
7250 if (IS_QUIC(s))
7ea49713 7251 return ossl_quic_get_event_timeout(s, tv, is_infinite);
03bacce8
HL		 7252#endif
7253
7254 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
fbe2573d 7255 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc)
7ea49713
HL		 7256 && DTLSv1_get_timeout(s, tv)) {
7257 *is_infinite = 0;
03bacce8 7258 return 1;
7ea49713 7259 }
03bacce8 7260
7ea49713 7261 tv->tv_sec = 1000000;
fbe2573d 7262 tv->tv_usec = 0;
7ea49713 7263 *is_infinite = 1;
fbe2573d 7264 return 1;
03bacce8
HL		 7265}
7266
68801bcb
HL		 7267int SSL_get_rpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7268{
7269#ifndef OPENSSL_NO_QUIC
6d495cc4 7270 if (!IS_QUIC(s))
68801bcb
HL		 7271 return -1;
7272
6d495cc4 7273 return ossl_quic_get_rpoll_descriptor(s, desc);
68801bcb
HL		 7274#else
7275 return -1;
7276#endif
7277}
7278
7279int SSL_get_wpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7280{
7281#ifndef OPENSSL_NO_QUIC
6d495cc4 7282 if (!IS_QUIC(s))
68801bcb
HL		 7283 return -1;
7284
6d495cc4 7285 return ossl_quic_get_wpoll_descriptor(s, desc);
03bacce8
HL		 7286#else
7287 return -1;
7288#endif
7289}
7290
b639475a 7291int SSL_net_read_desired(SSL *s)
03bacce8
HL		 7292{
7293#ifndef OPENSSL_NO_QUIC
6d495cc4 7294 if (!IS_QUIC(s))
03bacce8
HL		 7295 return 0;
7296
6d495cc4 7297 return ossl_quic_get_net_read_desired(s);
03bacce8
HL		 7298#else
7299 return 0;
7300#endif
7301}
7302
b639475a 7303int SSL_net_write_desired(SSL *s)
03bacce8
HL		 7304{
7305#ifndef OPENSSL_NO_QUIC
6d495cc4 7306 if (!IS_QUIC(s))
03bacce8
HL		 7307 return 0;
7308
6d495cc4 7309 return ossl_quic_get_net_write_desired(s);
03bacce8
HL		 7310#else
7311 return 0;
7312#endif
7313}
7314
7315int SSL_set_blocking_mode(SSL *s, int blocking)
7316{
7317#ifndef OPENSSL_NO_QUIC
6d495cc4 7318 if (!IS_QUIC(s))
03bacce8
HL		 7319 return 0;
7320
6d495cc4 7321 return ossl_quic_conn_set_blocking_mode(s, blocking);
03bacce8
HL		 7322#else
7323 return 0;
7324#endif
7325}
7326
7327int SSL_get_blocking_mode(SSL *s)
7328{
7329#ifndef OPENSSL_NO_QUIC
6d495cc4 7330 if (!IS_QUIC(s))
03bacce8
HL		 7331 return -1;
7332
6d495cc4 7333 return ossl_quic_conn_get_blocking_mode(s);
03bacce8
HL		 7334#else
7335 return -1;
7336#endif
7337}
7338
7339int SSL_set_initial_peer_addr(SSL *s, const BIO_ADDR *peer_addr)
7340{
7341#ifndef OPENSSL_NO_QUIC
6d495cc4 7342 if (!IS_QUIC(s))
e8043229 7343 return 0;
03bacce8 7344
6d495cc4 7345 return ossl_quic_conn_set_initial_peer_addr(s, peer_addr);
68801bcb 7346#else
e8043229
HL		 7347 return 0;
7348#endif
7349}
7350
7351int SSL_shutdown_ex(SSL *ssl, uint64_t flags,
7352 const SSL_SHUTDOWN_EX_ARGS *args,
7353 size_t args_len)
7354{
7355#ifndef OPENSSL_NO_QUIC
6d495cc4 7356 if (!IS_QUIC(ssl))
e8043229
HL		 7357 return SSL_shutdown(ssl);
7358
6d495cc4 7359 return ossl_quic_conn_shutdown(ssl, flags, args, args_len);
e8043229
HL		 7360#else
7361 return SSL_shutdown(ssl);
68801bcb
HL		 7362#endif
7363}
a9979965
HL		 7364
7365int SSL_stream_conclude(SSL *ssl, uint64_t flags)
7366{
7367#ifndef OPENSSL_NO_QUIC
6d495cc4 7368 if (!IS_QUIC(ssl))
a9979965
HL		 7369 return 0;
7370
6d495cc4 7371 return ossl_quic_conn_stream_conclude(ssl);
a9979965
HL		 7372#else
7373 return 0;
7374#endif
7375}
3c95ef22 7376
cb5c208b
HL		 7377SSL *SSL_new_stream(SSL *s, uint64_t flags)
7378{
7379#ifndef OPENSSL_NO_QUIC
7380 if (!IS_QUIC(s))
7381 return NULL;
7382
7383 return ossl_quic_conn_stream_new(s, flags);
7384#else
7385 return NULL;
7386#endif
7387}
7388
020d0389
HL		 7389SSL *SSL_get0_connection(SSL *s)
7390{
7391#ifndef OPENSSL_NO_QUIC
7392 if (!IS_QUIC(s))
7393 return s;
7394
7395 return ossl_quic_get0_connection(s);
7396#else
7397 return s;
7398#endif
7399}
7400
e1dee2e3
HL		 7401int SSL_is_connection(SSL *s)
7402{
7403 return SSL_get0_connection(s) == s;
7404}
7405
1bca3f1b
HL		 7406int SSL_get_stream_type(SSL *s)
7407{
7408#ifndef OPENSSL_NO_QUIC
7409 if (!IS_QUIC(s))
7410 return SSL_STREAM_TYPE_BIDI;
7411
7412 return ossl_quic_get_stream_type(s);
7413#else
7414 return SSL_STREAM_TYPE_BIDI;
7415#endif
7416}
7417
19cb0887
HL		 7418uint64_t SSL_get_stream_id(SSL *s)
7419{
7420#ifndef OPENSSL_NO_QUIC
7421 if (!IS_QUIC(s))
7422 return UINT64_MAX;
7423
7424 return ossl_quic_get_stream_id(s);
7425#else
7426 return UINT64_MAX;
7427#endif
7428}
7429
8b7be3aa
HL		 7430int SSL_set_default_stream_mode(SSL *s, uint32_t mode)
7431{
7432#ifndef OPENSSL_NO_QUIC
7433 if (!IS_QUIC(s))
7434 return 0;
7435
7436 return ossl_quic_set_default_stream_mode(s, mode);
7437#else
7438 return 0;
7439#endif
7440}
7441
83df44ae 7442int SSL_set_incoming_stream_policy(SSL *s, int policy, uint64_t aec)
8a90df34
HL		 7443{
7444#ifndef OPENSSL_NO_QUIC
7445 if (!IS_QUIC(s))
7446 return 0;
7447
83df44ae 7448 return ossl_quic_set_incoming_stream_policy(s, policy, aec);
8a90df34
HL		 7449#else
7450 return 0;
7451#endif
7452}
7453
cb68ce9f
HL		 7454SSL *SSL_accept_stream(SSL *s, uint64_t flags)
7455{
7456#ifndef OPENSSL_NO_QUIC
7457 if (!IS_QUIC(s))
7458 return NULL;
7459
7460 return ossl_quic_accept_stream(s, flags);
7461#else
7462 return NULL;
7463#endif
7464}
7465
7466size_t SSL_get_accept_stream_queue_len(SSL *s)
7467{
7468#ifndef OPENSSL_NO_QUIC
7469 if (!IS_QUIC(s))
7470 return 0;
7471
7472 return ossl_quic_get_accept_stream_queue_len(s);
7473#else
7474 return 0;
7475#endif
7476}
7477
c3a04ea2
HL		 7478int SSL_stream_reset(SSL *s,
7479 const SSL_STREAM_RESET_ARGS *args,
7480 size_t args_len)
7481{
7482#ifndef OPENSSL_NO_QUIC
7483 if (!IS_QUIC(s))
7484 return 0;
7485
7486 return ossl_quic_stream_reset(s, args, args_len);
7487#else
7488 return 0;
7489#endif
7490}
7491
7492int SSL_get_stream_read_state(SSL *s)
7493{
7494#ifndef OPENSSL_NO_QUIC
7495 if (!IS_QUIC(s))
7496 return SSL_STREAM_STATE_NONE;
7497
7498 return ossl_quic_get_stream_read_state(s);
7499#else
7500 return SSL_STREAM_STATE_NONE;
7501#endif
7502}
7503
7504int SSL_get_stream_write_state(SSL *s)
7505{
7506#ifndef OPENSSL_NO_QUIC
7507 if (!IS_QUIC(s))
7508 return SSL_STREAM_STATE_NONE;
7509
7510 return ossl_quic_get_stream_write_state(s);
7511#else
7512 return SSL_STREAM_STATE_NONE;
7513#endif
7514}
7515
7516int SSL_get_stream_read_error_code(SSL *s, uint64_t *app_error_code)
7517{
7518#ifndef OPENSSL_NO_QUIC
7519 if (!IS_QUIC(s))
7520 return -1;
7521
7522 return ossl_quic_get_stream_read_error_code(s, app_error_code);
7523#else
7524 return -1;
7525#endif
7526}
7527
7528int SSL_get_stream_write_error_code(SSL *s, uint64_t *app_error_code)
7529{
7530#ifndef OPENSSL_NO_QUIC
7531 if (!IS_QUIC(s))
7532 return -1;
7533
7534 return ossl_quic_get_stream_write_error_code(s, app_error_code);
7535#else
7536 return -1;
7537#endif
7538}
7539
7540int SSL_get_conn_close_info(SSL *s, SSL_CONN_CLOSE_INFO *info,
7541 size_t info_len)
7542{
7543#ifndef OPENSSL_NO_QUIC
7544 if (!IS_QUIC(s))
7545 return -1;
7546
7547 return ossl_quic_get_conn_close_info(s, info, info_len);
7548#else
7549 return -1;
7550#endif
7551}
7552
3c95ef22
TS		 7553int SSL_add_expected_rpk(SSL *s, EVP_PKEY *rpk)
7554{
7555 unsigned char *data = NULL;
7556 SSL_DANE *dane = SSL_get0_dane(s);
7557 int ret;
7558
7559 if (dane == NULL || dane->dctx == NULL)
7560 return 0;
7561 if ((ret = i2d_PUBKEY(rpk, &data)) <= 0)
7562 return 0;
7563
7564 ret = SSL_dane_tlsa_add(s, DANETLS_USAGE_DANE_EE,
7565 DANETLS_SELECTOR_SPKI,
7566 DANETLS_MATCHING_FULL,
7567 data, (size_t)ret) > 0;
7568 OPENSSL_free(data);
7569 return ret;
7570}
7571
7572EVP_PKEY *SSL_get0_peer_rpk(const SSL *s)
7573{
7574 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7575
7576 if (sc == NULL || sc->session == NULL)
7577 return NULL;
7578 return sc->session->peer_rpk;
7579}
7580
7581int SSL_get_negotiated_client_cert_type(const SSL *s)
7582{
7583 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7584
7585 if (sc == NULL)
7586 return 0;
7587
7588 return sc->ext.client_cert_type;
7589}
7590
7591int SSL_get_negotiated_server_cert_type(const SSL *s)
7592{
7593 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7594
7595 if (sc == NULL)
7596 return 0;
7597
7598 return sc->ext.server_cert_type;
7599}
7600
7601static int validate_cert_type(const unsigned char *val, size_t len)
7602{
7603 size_t i;
7604 int saw_rpk = 0;
7605 int saw_x509 = 0;
7606
7607 if (val == NULL && len == 0)
7608 return 1;
7609
7610 if (val == NULL || len == 0)
7611 return 0;
7612
7613 for (i = 0; i < len; i++) {
7614 switch (val[i]) {
7615 case TLSEXT_cert_type_rpk:
7616 if (saw_rpk)
7617 return 0;
7618 saw_rpk = 1;
7619 break;
7620 case TLSEXT_cert_type_x509:
7621 if (saw_x509)
7622 return 0;
7623 saw_x509 = 1;
7624 break;
7625 case TLSEXT_cert_type_pgp:
7626 case TLSEXT_cert_type_1609dot2:
7627 default:
7628 return 0;
7629 }
7630 }
7631 return 1;
7632}
7633
7634static int set_cert_type(unsigned char **cert_type,
7635 size_t *cert_type_len,
7636 const unsigned char *val,
7637 size_t len)
7638{
7639 unsigned char *tmp = NULL;
7640
7641 if (!validate_cert_type(val, len))
7642 return 0;
7643
7644 if (val != NULL && (tmp = OPENSSL_memdup(val, len)) == NULL)
7645 return 0;
7646
7647 OPENSSL_free(*cert_type);
7648 *cert_type = tmp;
7649 *cert_type_len = len;
7650 return 1;
7651}
7652
7653int SSL_set1_client_cert_type(SSL *s, const unsigned char *val, size_t len)
7654{
7655 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7656
7657 return set_cert_type(&sc->client_cert_type, &sc->client_cert_type_len,
7658 val, len);
7659}
7660
7661int SSL_set1_server_cert_type(SSL *s, const unsigned char *val, size_t len)
7662{
7663 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7664
7665 return set_cert_type(&sc->server_cert_type, &sc->server_cert_type_len,
7666 val, len);
7667}
7668
7669int SSL_CTX_set1_client_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7670{
7671 return set_cert_type(&ctx->client_cert_type, &ctx->client_cert_type_len,
7672 val, len);
7673}
7674
7675int SSL_CTX_set1_server_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7676{
7677 return set_cert_type(&ctx->server_cert_type, &ctx->server_cert_type_len,
7678 val, len);
7679}
7680
7681int SSL_get0_client_cert_type(const SSL *s, unsigned char **t, size_t *len)
7682{
7683 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7684
7685 if (t == NULL || len == NULL)
7686 return 0;
7687
7688 *t = sc->client_cert_type;
7689 *len = sc->client_cert_type_len;
7690 return 1;
7691}
7692
7693int SSL_get0_server_cert_type(const SSL *s, unsigned char **t, size_t *len)
7694{
7695 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7696
7697 if (t == NULL || len == NULL)
7698 return 0;
7699
7700 *t = sc->server_cert_type;
7701 *len = sc->server_cert_type_len;
7702 return 1;
7703}
7704
7705int SSL_CTX_get0_client_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7706{
7707 if (t == NULL || len == NULL)
7708 return 0;
7709
7710 *t = ctx->client_cert_type;
7711 *len = ctx->client_cert_type_len;
7712 return 1;
7713}
7714
7715int SSL_CTX_get0_server_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7716{
7717 if (t == NULL || len == NULL)
7718 return 0;
7719
7720 *t = ctx->server_cert_type;
7721 *len = ctx->server_cert_type_len;
7722 return 1;
7723}
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