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QUIC: Add new error codes for tuning API
[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
89dd87e1 65const SSL3_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 329 dlen != (size_t)(p - data)) {
e4a94bcc 330 X509_free(cert);
919ba009 331 tlsa_free(t);
6849b73c 332 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
919ba009
VD		 333 return 0;
334 }
335 if (X509_get0_pubkey(cert) == NULL) {
e4a94bcc 336 X509_free(cert);
919ba009 337 tlsa_free(t);
6849b73c 338 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
919ba009
VD		 339 return 0;
340 }
341
342 if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
f636e7e6
VD		 343 /*
344 * The Full(0) certificate decodes to a seemingly valid X.509
345 * object with a plausible key, so the TLSA record is well
164a541b 346 * formed. However, we don't actually need the certificate for
f636e7e6
VD		 347 * usages PKIX-EE(1) or DANE-EE(3), because at least the EE
348 * certificate is always presented by the peer. We discard the
349 * certificate, and just use the TLSA data as an opaque blob
350 * for matching the raw presented DER octets.
351 *
352 * DO NOT FREE `t` here, it will be added to the TLSA record
353 * list below!
354 */
919ba009
VD		 355 X509_free(cert);
356 break;
357 }
358
359 /*
360 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
361 * records that contain full certificates of trust-anchors that are
362 * not present in the wire chain. For usage PKIX-TA(0), we augment
363 * the chain with untrusted Full(0) certificates from DNS, in case
364 * they are missing from the chain.
365 */
366 if ((dane->certs == NULL &&
367 (dane->certs = sk_X509_new_null()) == NULL) ||
368 !sk_X509_push(dane->certs, cert)) {
e077455e 369 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
919ba009
VD		 370 X509_free(cert);
371 tlsa_free(t);
372 return -1;
373 }
374 break;
375
376 case DANETLS_SELECTOR_SPKI:
348240c6 377 if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data ||
919ba009 378 dlen != (size_t)(p - data)) {
e4a94bcc 379 EVP_PKEY_free(pkey);
919ba009 380 tlsa_free(t);
6849b73c 381 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
919ba009
VD		 382 return 0;
383 }
384
385 /*
386 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
387 * records that contain full bare keys of trust-anchors that are
388 * not present in the wire chain.
389 */
390 if (usage == DANETLS_USAGE_DANE_TA)
391 t->spki = pkey;
392 else
393 EVP_PKEY_free(pkey);
394 break;
395 }
396 }
397
398 /*-
399 * Find the right insertion point for the new record.
400 *
401 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
402 * they can be processed first, as they require no chain building, and no
403 * expiration or hostname checks. Because DANE-EE(3) is numerically
404 * largest, this is accomplished via descending sort by "usage".
405 *
406 * We also sort in descending order by matching ordinal to simplify
407 * the implementation of digest agility in the verification code.
408 *
409 * The choice of order for the selector is not significant, so we
410 * use the same descending order for consistency.
411 */
9f6b22b8
VD		 412 num = sk_danetls_record_num(dane->trecs);
413 for (i = 0; i < num; ++i) {
919ba009 414 danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
9f6b22b8 415
919ba009
VD		 416 if (rec->usage > usage)
417 continue;
418 if (rec->usage < usage)
419 break;
420 if (rec->selector > selector)
421 continue;
422 if (rec->selector < selector)
423 break;
424 if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
425 continue;
426 break;
427 }
428
429 if (!sk_danetls_record_insert(dane->trecs, t, i)) {
430 tlsa_free(t);
e077455e 431 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
919ba009
VD		 432 return -1;
433 }
434 dane->umask |= DANETLS_USAGE_BIT(usage);
435
436 return 1;
437}
438
c8feba72
BK		 439/*
440 * Return 0 if there is only one version configured and it was disabled
441 * at configure time. Return 1 otherwise.
442 */
d6e7ebba 443static int ssl_check_allowed_versions(int min_version, int max_version)
c8feba72
BK		 444{
445 int minisdtls = 0, maxisdtls = 0;
446
447 /* Figure out if we're doing DTLS versions or TLS versions */
448 if (min_version == DTLS1_BAD_VER
449 || min_version >> 8 == DTLS1_VERSION_MAJOR)
450 minisdtls = 1;
451 if (max_version == DTLS1_BAD_VER
452 || max_version >> 8 == DTLS1_VERSION_MAJOR)
453 maxisdtls = 1;
454 /* A wildcard version of 0 could be DTLS or TLS. */
455 if ((minisdtls && !maxisdtls && max_version != 0)
456 || (maxisdtls && !minisdtls && min_version != 0)) {
457 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
458 return 0;
459 }
460
461 if (minisdtls || maxisdtls) {
462 /* Do DTLS version checks. */
463 if (min_version == 0)
464 /* Ignore DTLS1_BAD_VER */
465 min_version = DTLS1_VERSION;
466 if (max_version == 0)
467 max_version = DTLS1_2_VERSION;
468#ifdef OPENSSL_NO_DTLS1_2
469 if (max_version == DTLS1_2_VERSION)
470 max_version = DTLS1_VERSION;
471#endif
472#ifdef OPENSSL_NO_DTLS1
473 if (min_version == DTLS1_VERSION)
474 min_version = DTLS1_2_VERSION;
475#endif
79b4444d
DMSP		 476 /* Done massaging versions; do the check. */
477 if (0
c8feba72
BK		 478#ifdef OPENSSL_NO_DTLS1
479 || (DTLS_VERSION_GE(min_version, DTLS1_VERSION)
480 && DTLS_VERSION_GE(DTLS1_VERSION, max_version))
481#endif
482#ifdef OPENSSL_NO_DTLS1_2
483 || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION)
484 && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version))
485#endif
486 )
487 return 0;
488 } else {
489 /* Regular TLS version checks. */
79b4444d 490 if (min_version == 0)
d6e7ebba 491 min_version = SSL3_VERSION;
79b4444d
DMSP		 492 if (max_version == 0)
493 max_version = TLS1_3_VERSION;
c8feba72 494#ifdef OPENSSL_NO_TLS1_3
79b4444d
DMSP		 495 if (max_version == TLS1_3_VERSION)
496 max_version = TLS1_2_VERSION;
c8feba72
BK		 497#endif
498#ifdef OPENSSL_NO_TLS1_2
79b4444d
DMSP		 499 if (max_version == TLS1_2_VERSION)
500 max_version = TLS1_1_VERSION;
c8feba72
BK		 501#endif
502#ifdef OPENSSL_NO_TLS1_1
79b4444d
DMSP		 503 if (max_version == TLS1_1_VERSION)
504 max_version = TLS1_VERSION;
c8feba72
BK		 505#endif
506#ifdef OPENSSL_NO_TLS1
79b4444d
DMSP		 507 if (max_version == TLS1_VERSION)
508 max_version = SSL3_VERSION;
c8feba72
BK		 509#endif
510#ifdef OPENSSL_NO_SSL3
79b4444d
DMSP		 511 if (min_version == SSL3_VERSION)
512 min_version = TLS1_VERSION;
c8feba72
BK		 513#endif
514#ifdef OPENSSL_NO_TLS1
79b4444d
DMSP		 515 if (min_version == TLS1_VERSION)
516 min_version = TLS1_1_VERSION;
c8feba72
BK		 517#endif
518#ifdef OPENSSL_NO_TLS1_1
79b4444d
DMSP		 519 if (min_version == TLS1_1_VERSION)
520 min_version = TLS1_2_VERSION;
c8feba72
BK		 521#endif
522#ifdef OPENSSL_NO_TLS1_2
79b4444d
DMSP		 523 if (min_version == TLS1_2_VERSION)
524 min_version = TLS1_3_VERSION;
c8feba72 525#endif
79b4444d
DMSP		 526 /* Done massaging versions; do the check. */
527 if (0
c8feba72
BK		 528#ifdef OPENSSL_NO_SSL3
529 || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version)
530#endif
531#ifdef OPENSSL_NO_TLS1
532 || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version)
533#endif
534#ifdef OPENSSL_NO_TLS1_1
535 || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version)
536#endif
537#ifdef OPENSSL_NO_TLS1_2
538 || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version)
539#endif
540#ifdef OPENSSL_NO_TLS1_3
541 || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version)
542#endif
543 )
544 return 0;
545 }
546 return 1;
547}
548
08073700
RB		 549#if defined(__TANDEM) && defined(OPENSSL_VPROC)
550/*
551 * Define a VPROC function for HP NonStop build ssl library.
552 * This is used by platform version identification tools.
553 * Do not inline this procedure or make it static.
554 */
555# define OPENSSL_VPROC_STRING_(x) x##_SSL
556# define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
557# define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
558void OPENSSL_VPROC_FUNC(void) {}
559#endif
560
4f43d0e7 561int SSL_clear(SSL *s)
0f113f3e 562{
0f113f3e 563 if (s->method == NULL) {
6849b73c 564 ERR_raise(ERR_LIB_SSL, SSL_R_NO_METHOD_SPECIFIED);
a89325e4 565 return 0;
0f113f3e 566 }
d02b48c6 567
38b051a1
TM		 568 return s->method->ssl_reset(s);
569}
570
571int ossl_ssl_connection_reset(SSL *s)
572{
573 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
574
575 if (sc == NULL)
576 return 0;
577
578 if (ssl_clear_bad_session(sc)) {
579 SSL_SESSION_free(sc->session);
580 sc->session = NULL;
0f113f3e 581 }
38b051a1
TM		 582 SSL_SESSION_free(sc->psksession);
583 sc->psksession = NULL;
584 OPENSSL_free(sc->psksession_id);
585 sc->psksession_id = NULL;
586 sc->psksession_id_len = 0;
5ac7ee4d 587 sc->hello_retry_request = SSL_HRR_NONE;
38b051a1 588 sc->sent_tickets = 0;
d62bfb39 589
38b051a1
TM		 590 sc->error = 0;
591 sc->hit = 0;
592 sc->shutdown = 0;
d02b48c6 593
38b051a1 594 if (sc->renegotiate) {
6849b73c 595 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
0f113f3e
MC		 596 return 0;
597 }
d02b48c6 598
38b051a1 599 ossl_statem_clear(sc);
413c4f45 600
38b051a1
TM		 601 sc->version = s->method->version;
602 sc->client_version = sc->version;
603 sc->rwstate = SSL_NOTHING;
d02b48c6 604
38b051a1
TM		 605 BUF_MEM_free(sc->init_buf);
606 sc->init_buf = NULL;
38b051a1 607 sc->first_packet = 0;
d02b48c6 608
38b051a1 609 sc->key_update = SSL_KEY_UPDATE_NONE;
b67cb09f
TS		 610 memset(sc->ext.compress_certificate_from_peer, 0,
611 sizeof(sc->ext.compress_certificate_from_peer));
612 sc->ext.compress_certificate_sent = 0;
44c04a2e 613
38b051a1
TM		 614 EVP_MD_CTX_free(sc->pha_dgst);
615 sc->pha_dgst = NULL;
88834998 616
919ba009 617 /* Reset DANE verification result state */
38b051a1
TM		 618 sc->dane.mdpth = -1;
619 sc->dane.pdpth = -1;
620 X509_free(sc->dane.mcert);
621 sc->dane.mcert = NULL;
622 sc->dane.mtlsa = NULL;
919ba009
VD		 623
624 /* Clear the verification result peername */
38b051a1 625 X509_VERIFY_PARAM_move_peername(sc->param, NULL);
919ba009 626
29948ac8 627 /* Clear any shared connection state */
38b051a1
TM		 628 OPENSSL_free(sc->shared_sigalgs);
629 sc->shared_sigalgs = NULL;
630 sc->shared_sigalgslen = 0;
29948ac8 631
0f113f3e
MC		 632 /*
633 * Check to see if we were changed into a different method, if so, revert
24252537 634 * back.
0f113f3e 635 */
a7f41885 636 if (s->method != s->defltmeth) {
38b051a1 637 s->method->ssl_deinit(s);
a7f41885 638 s->method = s->defltmeth;
38b051a1 639 if (!s->method->ssl_init(s))
a89325e4 640 return 0;
b77f3ed1
MC		 641 } else {
642 if (!s->method->ssl_clear(s))
643 return 0;
644 }
33d23b87 645
4a0e4849 646 if (!RECORD_LAYER_reset(&sc->rlayer))
2b71b042 647 return 0;
aedbb71b 648
a89325e4 649 return 1;
0f113f3e 650}
d02b48c6 651
dd0164e7 652#ifndef OPENSSL_NO_DEPRECATED_3_0
4f43d0e7 653/** Used to change an SSL_CTXs default SSL method type */
0f113f3e
MC		 654int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
655{
656 STACK_OF(SSL_CIPHER) *sk;
657
3ea30e76
HL		 658 if (IS_QUIC_CTX(ctx)) {
659 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
660 return 0;
661 }
662
0f113f3e
MC		 663 ctx->method = meth;
664
5d120511 665 if (!SSL_CTX_set_ciphersuites(ctx, OSSL_default_ciphersuites())) {
6849b73c 666 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
2340ed27
BK		 667 return 0;
668 }
a68eee67 669 sk = ssl_create_cipher_list(ctx,
f865b081
MC		 670 ctx->tls13_ciphersuites,
671 &(ctx->cipher_list),
0f113f3e 672 &(ctx->cipher_list_by_id),
5d120511 673 OSSL_default_cipher_list(), ctx->cert);
0f113f3e 674 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
6849b73c 675 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
26a7d938 676 return 0;
0f113f3e 677 }
208fb891 678 return 1;
0f113f3e 679}
dd0164e7 680#endif
d02b48c6 681
4f43d0e7 682SSL *SSL_new(SSL_CTX *ctx)
0f113f3e 683{
0f113f3e 684 if (ctx == NULL) {
6849b73c 685 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_CTX);
26a7d938 686 return NULL;
0f113f3e
MC		 687 }
688 if (ctx->method == NULL) {
6849b73c 689 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
26a7d938 690 return NULL;
0f113f3e 691 }
38b051a1
TM		 692 return ctx->method->ssl_new(ctx);
693}
694
a7f41885 695int ossl_ssl_init(SSL *ssl, SSL_CTX *ctx, const SSL_METHOD *method, int type)
38b051a1
TM		 696{
697 ssl->type = type;
698
38b051a1
TM		 699 ssl->lock = CRYPTO_THREAD_lock_new();
700 if (ssl->lock == NULL)
701 return 0;
702
43a07d6d
P		 703 if (!CRYPTO_NEW_REF(&ssl->references, 1)) {
704 CRYPTO_THREAD_lock_free(ssl->lock);
705 return 0;
706 }
707
c10ded8c
TS		 708 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, ssl, &ssl->ex_data)) {
709 CRYPTO_THREAD_lock_free(ssl->lock);
43a07d6d 710 CRYPTO_FREE_REF(&ssl->references);
c10ded8c
TS		 711 ssl->lock = NULL;
712 return 0;
713 }
714
38b051a1
TM		 715 SSL_CTX_up_ref(ctx);
716 ssl->ctx = ctx;
717
a7f41885 718 ssl->defltmeth = ssl->method = method;
38b051a1 719
38b051a1
TM		 720 return 1;
721}
722
a7f41885 723SSL *ossl_ssl_connection_new_int(SSL_CTX *ctx, const SSL_METHOD *method)
38b051a1
TM		 724{
725 SSL_CONNECTION *s;
726 SSL *ssl;
0f113f3e 727
b51bce94 728 s = OPENSSL_zalloc(sizeof(*s));
0f113f3e 729 if (s == NULL)
38b051a1 730 return NULL;
0f113f3e 731
38b051a1 732 ssl = &s->ssl;
a7f41885 733 if (!ossl_ssl_init(ssl, ctx, method, SSL_TYPE_SSL_CONNECTION)) {
e6b10c34
BE		 734 OPENSSL_free(s);
735 s = NULL;
c4a44e7b 736 ssl = NULL;
e077455e 737 goto sslerr;
e6b10c34 738 }
ae3947de 739
c036e210 740 RECORD_LAYER_init(&s->rlayer, s);
28d59af8 741
0f113f3e 742 s->options = ctx->options;
f0d9757c 743
5ae4ceb9 744 s->dane.flags = ctx->dane.flags;
4f373a97
TM		 745 if (method->version == ctx->method->version) {
746 s->min_proto_version = ctx->min_proto_version;
747 s->max_proto_version = ctx->max_proto_version;
748 }
0eecf841 749
0f113f3e
MC		 750 s->mode = ctx->mode;
751 s->max_cert_list = ctx->max_cert_list;
6e5550a1
HL		 752 s->max_early_data = ctx->max_early_data;
753 s->recv_max_early_data = ctx->recv_max_early_data;
82a2beca 754
9d0a8bb7 755 s->num_tickets = ctx->num_tickets;
e97be718 756 s->pha_enabled = ctx->pha_enabled;
0f113f3e 757
f865b081
MC		 758 /* Shallow copy of the ciphersuites stack */
759 s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
760 if (s->tls13_ciphersuites == NULL)
e077455e 761 goto cerr;
f865b081 762
2c382349
KR		 763 /*
764 * Earlier library versions used to copy the pointer to the CERT, not
765 * its contents; only when setting new parameters for the per-SSL
766 * copy, ssl_cert_new would be called (and the direct reference to
767 * the per-SSL_CTX settings would be lost, but those still were
768 * indirectly accessed for various purposes, and for that reason they
769 * used to be known as s->ctx->default_cert). Now we don't look at the
770 * SSL_CTX's CERT after having duplicated it once.
771 */
772 s->cert = ssl_cert_dup(ctx->cert);
773 if (s->cert == NULL)
e077455e 774 goto sslerr;
0f113f3e 775
52e1d7b1 776 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
0f113f3e
MC		 777 s->msg_callback = ctx->msg_callback;
778 s->msg_callback_arg = ctx->msg_callback_arg;
779 s->verify_mode = ctx->verify_mode;
780 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
d6e7ebba
HL		 781 s->rlayer.record_padding_cb = ctx->record_padding_cb;
782 s->rlayer.record_padding_arg = ctx->record_padding_arg;
783 s->rlayer.block_padding = ctx->block_padding;
0f113f3e 784 s->sid_ctx_length = ctx->sid_ctx_length;
cbe29648 785 if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
380a522f 786 goto err;
0f113f3e
MC		 787 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
788 s->verify_callback = ctx->default_verify_callback;
789 s->generate_session_id = ctx->generate_session_id;
790
791 s->param = X509_VERIFY_PARAM_new();
a71edf3b 792 if (s->param == NULL)
e077455e 793 goto asn1err;
0f113f3e 794 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
f66f0d3c 795 s->quiet_shutdown = IS_QUIC_CTX(ctx) ? 0 : ctx->quiet_shutdown;
cf72c757 796
82a2beca 797 if (!IS_QUIC_CTX(ctx))
d0638fd5
HL		 798 s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
799
0f113f3e 800 s->max_send_fragment = ctx->max_send_fragment;
d102d9df
MC		 801 s->split_send_fragment = ctx->split_send_fragment;
802 s->max_pipelines = ctx->max_pipelines;
cffafb5f 803 s->rlayer.default_read_buf_len = ctx->default_read_buf_len;
bf21446a 804
aff8c126
RS		 805 s->ext.debug_cb = 0;
806 s->ext.debug_arg = NULL;
807 s->ext.ticket_expected = 0;
808 s->ext.status_type = ctx->ext.status_type;
809 s->ext.status_expected = 0;
810 s->ext.ocsp.ids = NULL;
811 s->ext.ocsp.exts = NULL;
812 s->ext.ocsp.resp = NULL;
813 s->ext.ocsp.resp_len = 0;
16203f7b 814 SSL_CTX_up_ref(ctx);
222da979 815 s->session_ctx = ctx;
aff8c126
RS		 816 if (ctx->ext.ecpointformats) {
817 s->ext.ecpointformats =
818 OPENSSL_memdup(ctx->ext.ecpointformats,
819 ctx->ext.ecpointformats_len);
39a14059
MC		 820 if (!s->ext.ecpointformats) {
821 s->ext.ecpointformats_len = 0;
0f113f3e 822 goto err;
39a14059 823 }
aff8c126
RS		 824 s->ext.ecpointformats_len =
825 ctx->ext.ecpointformats_len;
826 }
827 if (ctx->ext.supportedgroups) {
828 s->ext.supportedgroups =
829 OPENSSL_memdup(ctx->ext.supportedgroups,
9e84a42d 830 ctx->ext.supportedgroups_len
b92d7b62 831 * sizeof(*ctx->ext.supportedgroups));
39a14059
MC		 832 if (!s->ext.supportedgroups) {
833 s->ext.supportedgroups_len = 0;
0f113f3e 834 goto err;
39a14059 835 }
aff8c126 836 s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
0f113f3e 837 }
dbc6268f 838
a230b26e 839#ifndef OPENSSL_NO_NEXTPROTONEG
aff8c126 840 s->ext.npn = NULL;
a230b26e 841#endif
6f017a8f 842
38b051a1
TM		 843 if (ctx->ext.alpn != NULL) {
844 s->ext.alpn = OPENSSL_malloc(ctx->ext.alpn_len);
39a14059
MC		 845 if (s->ext.alpn == NULL) {
846 s->ext.alpn_len = 0;
0f113f3e 847 goto err;
39a14059 848 }
38b051a1
TM		 849 memcpy(s->ext.alpn, ctx->ext.alpn, ctx->ext.alpn_len);
850 s->ext.alpn_len = ctx->ext.alpn_len;
0f113f3e 851 }
d02b48c6 852
696178ed 853 s->verified_chain = NULL;
0f113f3e 854 s->verify_result = X509_V_OK;
d02b48c6 855
a974e64a
MC		 856 s->default_passwd_callback = ctx->default_passwd_callback;
857 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
858
44c04a2e
MC		 859 s->key_update = SSL_KEY_UPDATE_NONE;
860
82a2beca
HL		 861 if (!IS_QUIC_CTX(ctx)) {
862 s->allow_early_data_cb = ctx->allow_early_data_cb;
863 s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
864 }
c9598459 865
a7f41885 866 if (!method->ssl_init(ssl))
e077455e 867 goto sslerr;
d02b48c6 868
a7f41885 869 s->server = (method->ssl_accept == ssl_undefined_function) ? 0 : 1;
bf21446a 870
a7f41885 871 if (!method->ssl_reset(ssl))
e077455e 872 goto sslerr;
58964a49 873
ddac1974 874#ifndef OPENSSL_NO_PSK
0f113f3e
MC		 875 s->psk_client_callback = ctx->psk_client_callback;
876 s->psk_server_callback = ctx->psk_server_callback;
ddac1974 877#endif
f46184bd
MC		 878 s->psk_find_session_cb = ctx->psk_find_session_cb;
879 s->psk_use_session_cb = ctx->psk_use_session_cb;
ddac1974 880
9f5a87fd
PY		 881 s->async_cb = ctx->async_cb;
882 s->async_cb_arg = ctx->async_cb_arg;
883
07bbc92c
MC		 884 s->job = NULL;
885
b67cb09f
TS		 886#ifndef OPENSSL_NO_COMP_ALG
887 memcpy(s->cert_comp_prefs, ctx->cert_comp_prefs, sizeof(s->cert_comp_prefs));
888#endif
3c95ef22
TS		 889 if (ctx->client_cert_type != NULL) {
890 s->client_cert_type = OPENSSL_memdup(ctx->client_cert_type,
891 ctx->client_cert_type_len);
892 if (s->client_cert_type == NULL)
893 goto sslerr;
894 s->client_cert_type_len = ctx->client_cert_type_len;
895 }
896 if (ctx->server_cert_type != NULL) {
897 s->server_cert_type = OPENSSL_memdup(ctx->server_cert_type,
898 ctx->server_cert_type_len);
899 if (s->server_cert_type == NULL)
900 goto sslerr;
901 s->server_cert_type_len = ctx->server_cert_type_len;
902 }
b67cb09f 903
ed29e82a 904#ifndef OPENSSL_NO_CT
38b051a1 905 if (!SSL_set_ct_validation_callback(ssl, ctx->ct_validation_callback,
a230b26e 906 ctx->ct_validation_callback_arg))
e077455e 907 goto sslerr;
ed29e82a
RP		 908#endif
909
ee58915c 910 s->ssl_pkey_num = SSL_PKEY_NUM + ctx->sigalg_list_len;
38b051a1 911 return ssl;
e077455e
RL		 912 cerr:
913 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
914 goto err;
915 asn1err:
916 ERR_raise(ERR_LIB_SSL, ERR_R_ASN1_LIB);
917 goto err;
918 sslerr:
919 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
0f113f3e 920 err:
38b051a1 921 SSL_free(ssl);
16203f7b 922 return NULL;
0f113f3e 923}
d02b48c6 924
a7f41885
MC		 925SSL *ossl_ssl_connection_new(SSL_CTX *ctx)
926{
927 return ossl_ssl_connection_new_int(ctx, ctx->method);
928}
929
e417070c
RS		 930int SSL_is_dtls(const SSL *s)
931{
38b051a1
TM		 932 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
933
50769b15 934#ifndef OPENSSL_NO_QUIC
f8636c7e 935 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
50769b15
MC		 936 return 0;
937#endif
938
38b051a1
TM		 939 if (sc == NULL)
940 return 0;
941
942 return SSL_CONNECTION_IS_DTLS(sc) ? 1 : 0;
e417070c
RS		 943}
944
50769b15
MC		 945int SSL_is_tls(const SSL *s)
946{
947 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
948
949#ifndef OPENSSL_NO_QUIC
f8636c7e 950 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
50769b15
MC		 951 return 0;
952#endif
953
954 if (sc == NULL)
955 return 0;
956
957 return SSL_CONNECTION_IS_DTLS(sc) ? 0 : 1;
958}
959
960int SSL_is_quic(const SSL *s)
961{
962#ifndef OPENSSL_NO_QUIC
f8636c7e 963 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
50769b15
MC		 964 return 1;
965#endif
966 return 0;
967}
968
c5ebfcab 969int SSL_up_ref(SSL *s)
a18a31e4 970{
16203f7b 971 int i;
c5ebfcab 972
43a07d6d 973 if (CRYPTO_UP_REF(&s->references, &i) <= 0)
c5ebfcab
F		 974 return 0;
975
976 REF_PRINT_COUNT("SSL", s);
977 REF_ASSERT_ISNT(i < 2);
978 return ((i > 1) ? 1 : 0);
a18a31e4
MC		 979}
980
0f113f3e
MC		 981int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
982 unsigned int sid_ctx_len)
983{
fe9edc9d 984 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
6849b73c 985 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
0f113f3e
MC		 986 return 0;
987 }
988 ctx->sid_ctx_length = sid_ctx_len;
989 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
4eb77b26
BM		 990
991 return 1;
0f113f3e 992}
4eb77b26 993
0f113f3e
MC		 994int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
995 unsigned int sid_ctx_len)
996{
38b051a1
TM		 997 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
998
999 if (sc == NULL)
1000 return 0;
1001
0f113f3e 1002 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
6849b73c 1003 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
0f113f3e
MC		 1004 return 0;
1005 }
38b051a1
TM		 1006 sc->sid_ctx_length = sid_ctx_len;
1007 memcpy(sc->sid_ctx, sid_ctx, sid_ctx_len);
b4cadc6e
BL		 1008
1009 return 1;
0f113f3e 1010}
b4cadc6e 1011
dc644fe2 1012int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
0f113f3e 1013{
cd3f8c1b
RS		 1014 if (!CRYPTO_THREAD_write_lock(ctx->lock))
1015 return 0;
0f113f3e 1016 ctx->generate_session_id = cb;
16203f7b 1017 CRYPTO_THREAD_unlock(ctx->lock);
0f113f3e
MC		 1018 return 1;
1019}
dc644fe2
GT		 1020
1021int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
0f113f3e 1022{
38b051a1
TM		 1023 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1024
1025 if (sc == NULL || !CRYPTO_THREAD_write_lock(ssl->lock))
cd3f8c1b 1026 return 0;
38b051a1 1027 sc->generate_session_id = cb;
16203f7b 1028 CRYPTO_THREAD_unlock(ssl->lock);
0f113f3e
MC		 1029 return 1;
1030}
dc644fe2 1031
f85c9904 1032int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
0f113f3e
MC		 1033 unsigned int id_len)
1034{
1035 /*
1036 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
69687aa8 1037 * we can "construct" a session to give us the desired check - i.e. to
0f113f3e
MC		 1038 * find if there's a session in the hash table that would conflict with
1039 * any new session built out of this id/id_len and the ssl_version in use
1040 * by this SSL.
1041 */
1042 SSL_SESSION r, *p;
38b051a1 1043 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
0f113f3e 1044
38b051a1 1045 if (sc == NULL || id_len > sizeof(r.session_id))
0f113f3e
MC		 1046 return 0;
1047
38b051a1 1048 r.ssl_version = sc->version;
0f113f3e
MC		 1049 r.session_id_length = id_len;
1050 memcpy(r.session_id, id, id_len);
1051
38b051a1 1052 if (!CRYPTO_THREAD_read_lock(sc->session_ctx->lock))
cd3f8c1b 1053 return 0;
38b051a1
TM		 1054 p = lh_SSL_SESSION_retrieve(sc->session_ctx->sessions, &r);
1055 CRYPTO_THREAD_unlock(sc->session_ctx->lock);
0f113f3e
MC		 1056 return (p != NULL);
1057}
dc644fe2 1058
bb7cd4e3 1059int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
0f113f3e
MC		 1060{
1061 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
1062}
bb7cd4e3
DSH		 1063
1064int SSL_set_purpose(SSL *s, int purpose)
0f113f3e 1065{
38b051a1
TM		 1066 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1067
1068 if (sc == NULL)
1069 return 0;
1070
1071 return X509_VERIFY_PARAM_set_purpose(sc->param, purpose);
0f113f3e 1072}
926a56bf 1073
bb7cd4e3 1074int SSL_CTX_set_trust(SSL_CTX *s, int trust)
0f113f3e
MC		 1075{
1076 return X509_VERIFY_PARAM_set_trust(s->param, trust);
1077}
bb7cd4e3
DSH		 1078
1079int SSL_set_trust(SSL *s, int trust)
0f113f3e 1080{
38b051a1
TM		 1081 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1082
1083 if (sc == NULL)
1084 return 0;
1085
1086 return X509_VERIFY_PARAM_set_trust(sc->param, trust);
0f113f3e 1087}
bb7cd4e3 1088
919ba009
VD		 1089int SSL_set1_host(SSL *s, const char *hostname)
1090{
38b051a1
TM		 1091 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1092
1093 if (sc == NULL)
1094 return 0;
1095
c832840e
DW		 1096 /* If a hostname is provided and parses as an IP address,
1097 * treat it as such. */
38b051a1
TM		 1098 if (hostname != NULL
1099 && X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname) == 1)
c832840e
DW		 1100 return 1;
1101
38b051a1 1102 return X509_VERIFY_PARAM_set1_host(sc->param, hostname, 0);
919ba009
VD		 1103}
1104
1105int SSL_add1_host(SSL *s, const char *hostname)
1106{
38b051a1
TM		 1107 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1108
1109 if (sc == NULL)
1110 return 0;
1111
c832840e
DW		 1112 /* If a hostname is provided and parses as an IP address,
1113 * treat it as such. */
892a9e4c
DW		 1114 if (hostname)
1115 {
1116 ASN1_OCTET_STRING *ip;
1117 char *old_ip;
1118
1119 ip = a2i_IPADDRESS(hostname);
1120 if (ip) {
1121 /* We didn't want it; only to check if it *is* an IP address */
1122 ASN1_OCTET_STRING_free(ip);
1123
38b051a1 1124 old_ip = X509_VERIFY_PARAM_get1_ip_asc(sc->param);
892a9e4c
DW		 1125 if (old_ip)
1126 {
f2bfc53b 1127 OPENSSL_free(old_ip);
892a9e4c
DW		 1128 /* There can be only one IP address */
1129 return 0;
1130 }
1131
38b051a1 1132 return X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname);
892a9e4c
DW		 1133 }
1134 }
c832840e 1135
38b051a1 1136 return X509_VERIFY_PARAM_add1_host(sc->param, hostname, 0);
919ba009
VD		 1137}
1138
1139void SSL_set_hostflags(SSL *s, unsigned int flags)
1140{
38b051a1
TM		 1141 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1142
1143 if (sc == NULL)
1144 return;
1145
1146 X509_VERIFY_PARAM_set_hostflags(sc->param, flags);
919ba009
VD		 1147}
1148
4588cb44 1149const char *SSL_get0_peername(SSL *s)
919ba009 1150{
38b051a1
TM		 1151 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1152
1153 if (sc == NULL)
1154 return NULL;
1155
1156 return X509_VERIFY_PARAM_get0_peername(sc->param);
919ba009
VD		 1157}
1158
1159int SSL_CTX_dane_enable(SSL_CTX *ctx)
1160{
1161 return dane_ctx_enable(&ctx->dane);
1162}
1163
5ae4ceb9
VD		 1164unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
1165{
1166 unsigned long orig = ctx->dane.flags;
1167
1168 ctx->dane.flags |= flags;
1169 return orig;
1170}
1171
1172unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
1173{
1174 unsigned long orig = ctx->dane.flags;
1175
1176 ctx->dane.flags &= ~flags;
1177 return orig;
1178}
1179
919ba009
VD		 1180int SSL_dane_enable(SSL *s, const char *basedomain)
1181{
38b051a1
TM		 1182 SSL_DANE *dane;
1183 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
919ba009 1184
38b051a1
TM		 1185 if (sc == NULL)
1186 return 0;
1187
1188 dane = &sc->dane;
919ba009 1189 if (s->ctx->dane.mdmax == 0) {
6849b73c 1190 ERR_raise(ERR_LIB_SSL, SSL_R_CONTEXT_NOT_DANE_ENABLED);
919ba009
VD		 1191 return 0;
1192 }
1193 if (dane->trecs != NULL) {
6849b73c 1194 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_ALREADY_ENABLED);
919ba009
VD		 1195 return 0;
1196 }
1197
8d887efa
VD		 1198 /*
1199 * Default SNI name. This rejects empty names, while set1_host below
9929c817 1200 * accepts them and disables hostname checks. To avoid side-effects with
8d887efa
VD		 1201 * invalid input, set the SNI name first.
1202 */
38b051a1 1203 if (sc->ext.hostname == NULL) {
dccd20d1 1204 if (!SSL_set_tlsext_host_name(s, basedomain)) {
6849b73c 1205 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
dccd20d1 1206 return -1;
8d887efa
VD		 1207 }
1208 }
1209
919ba009 1210 /* Primary RFC6125 reference identifier */
38b051a1 1211 if (!X509_VERIFY_PARAM_set1_host(sc->param, basedomain, 0)) {
6849b73c 1212 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
919ba009
VD		 1213 return -1;
1214 }
1215
919ba009
VD		 1216 dane->mdpth = -1;
1217 dane->pdpth = -1;
1218 dane->dctx = &s->ctx->dane;
1219 dane->trecs = sk_danetls_record_new_null();
1220
1221 if (dane->trecs == NULL) {
e077455e 1222 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
919ba009
VD		 1223 return -1;
1224 }
1225 return 1;
1226}
1227
5ae4ceb9
VD		 1228unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
1229{
38b051a1
TM		 1230 unsigned long orig;
1231 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1232
1233 if (sc == NULL)
1234 return 0;
1235
1236 orig = sc->dane.flags;
5ae4ceb9 1237
38b051a1 1238 sc->dane.flags |= flags;
5ae4ceb9
VD		 1239 return orig;
1240}
1241
1242unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
1243{
38b051a1
TM		 1244 unsigned long orig;
1245 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5ae4ceb9 1246
38b051a1
TM		 1247 if (sc == NULL)
1248 return 0;
1249
1250 orig = sc->dane.flags;
1251
1252 sc->dane.flags &= ~flags;
5ae4ceb9
VD		 1253 return orig;
1254}
1255
919ba009
VD		 1256int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
1257{
38b051a1
TM		 1258 SSL_DANE *dane;
1259 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
919ba009 1260
38b051a1
TM		 1261 if (sc == NULL)
1262 return -1;
1263
1264 dane = &sc->dane;
1265
1266 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
919ba009
VD		 1267 return -1;
1268 if (dane->mtlsa) {
1269 if (mcert)
1270 *mcert = dane->mcert;
1271 if (mspki)
1272 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
1273 }
1274 return dane->mdpth;
1275}
1276
1277int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
6d4313f0 1278 uint8_t *mtype, const unsigned char **data, size_t *dlen)
919ba009 1279{
38b051a1
TM		 1280 SSL_DANE *dane;
1281 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
919ba009 1282
38b051a1
TM		 1283 if (sc == NULL)
1284 return -1;
1285
1286 dane = &sc->dane;
1287
1288 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
919ba009
VD		 1289 return -1;
1290 if (dane->mtlsa) {
1291 if (usage)
1292 *usage = dane->mtlsa->usage;
1293 if (selector)
1294 *selector = dane->mtlsa->selector;
1295 if (mtype)
1296 *mtype = dane->mtlsa->mtype;
1297 if (data)
1298 *data = dane->mtlsa->data;
1299 if (dlen)
1300 *dlen = dane->mtlsa->dlen;
1301 }
1302 return dane->mdpth;
1303}
1304
b9aec69a 1305SSL_DANE *SSL_get0_dane(SSL *s)
919ba009 1306{
38b051a1
TM		 1307 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1308
1309 if (sc == NULL)
1310 return NULL;
1311
1312 return &sc->dane;
919ba009
VD		 1313}
1314
1315int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
6d4313f0 1316 uint8_t mtype, const unsigned char *data, size_t dlen)
919ba009 1317{
38b051a1
TM		 1318 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1319
1320 if (sc == NULL)
1321 return 0;
1322
1323 return dane_tlsa_add(&sc->dane, usage, selector, mtype, data, dlen);
919ba009
VD		 1324}
1325
a230b26e
EK		 1326int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
1327 uint8_t ord)
919ba009
VD		 1328{
1329 return dane_mtype_set(&ctx->dane, md, mtype, ord);
1330}
1331
ccf11751 1332int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
0f113f3e
MC		 1333{
1334 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
1335}
ccf11751
DSH		 1336
1337int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
0f113f3e 1338{
38b051a1
TM		 1339 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1340
1341 if (sc == NULL)
1342 return 0;
1343
1344 return X509_VERIFY_PARAM_set1(sc->param, vpm);
0f113f3e 1345}
ccf11751 1346
7af31968 1347X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
0f113f3e
MC		 1348{
1349 return ctx->param;
1350}
7af31968
DSH		 1351
1352X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
0f113f3e 1353{
38b051a1
TM		 1354 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1355
1356 if (sc == NULL)
1357 return NULL;
1358
1359 return sc->param;
0f113f3e 1360}
7af31968 1361
a5ee80b9 1362void SSL_certs_clear(SSL *s)
0f113f3e 1363{
38b051a1
TM		 1364 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1365
1366 if (sc == NULL)
1367 return;
1368
1369 ssl_cert_clear_certs(sc->cert);
0f113f3e 1370}
a5ee80b9 1371
4f43d0e7 1372void SSL_free(SSL *s)
0f113f3e
MC		 1373{
1374 int i;
58964a49 1375
e6e9170d
RS		 1376 if (s == NULL)
1377 return;
43a07d6d 1378 CRYPTO_DOWN_REF(&s->references, &i);
f3f1cf84 1379 REF_PRINT_COUNT("SSL", s);
0f113f3e
MC		 1380 if (i > 0)
1381 return;
f3f1cf84 1382 REF_ASSERT_ISNT(i < 0);
d02b48c6 1383
38b051a1
TM		 1384 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1385
1386 if (s->method != NULL)
1387 s->method->ssl_free(s);
1388
1389 SSL_CTX_free(s->ctx);
1390 CRYPTO_THREAD_lock_free(s->lock);
43a07d6d 1391 CRYPTO_FREE_REF(&s->references);
38b051a1
TM		 1392
1393 OPENSSL_free(s);
1394}
1395
1396void ossl_ssl_connection_free(SSL *ssl)
1397{
1398 SSL_CONNECTION *s;
1399
1400 s = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
1401 if (s == NULL)
1402 return;
1403
222561fe 1404 X509_VERIFY_PARAM_free(s->param);
919ba009 1405 dane_final(&s->dane);
0f113f3e 1406
b77f3ed1 1407 /* Ignore return value */
2e7dc7cd
MC		 1408 ssl_free_wbio_buffer(s);
1409
4a0e4849 1410 /* Ignore return value */
9ff51954
MC		 1411 RECORD_LAYER_clear(&s->rlayer);
1412
25aaa98a 1413 BUF_MEM_free(s->init_buf);
0f113f3e
MC		 1414
1415 /* add extra stuff */
25aaa98a
RS		 1416 sk_SSL_CIPHER_free(s->cipher_list);
1417 sk_SSL_CIPHER_free(s->cipher_list_by_id);
f865b081 1418 sk_SSL_CIPHER_free(s->tls13_ciphersuites);
eee2a6a7 1419 sk_SSL_CIPHER_free(s->peer_ciphers);
0f113f3e
MC		 1420
1421 /* Make the next call work :-) */
1422 if (s->session != NULL) {
1423 ssl_clear_bad_session(s);
1424 SSL_SESSION_free(s->session);
1425 }
9368f865 1426 SSL_SESSION_free(s->psksession);
add8d0e9 1427 OPENSSL_free(s->psksession_id);
0f113f3e 1428
e0e920b1 1429 ssl_cert_free(s->cert);
29948ac8 1430 OPENSSL_free(s->shared_sigalgs);
0f113f3e 1431 /* Free up if allocated */
d02b48c6 1432
aff8c126 1433 OPENSSL_free(s->ext.hostname);
222da979 1434 SSL_CTX_free(s->session_ctx);
aff8c126 1435 OPENSSL_free(s->ext.ecpointformats);
cd0fb43c 1436 OPENSSL_free(s->ext.peer_ecpointformats);
aff8c126 1437 OPENSSL_free(s->ext.supportedgroups);
45436e61 1438 OPENSSL_free(s->ext.peer_supportedgroups);
aff8c126 1439 sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
3e41ac35 1440#ifndef OPENSSL_NO_OCSP
aff8c126 1441 sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
3e41ac35 1442#endif
ed29e82a
RP		 1443#ifndef OPENSSL_NO_CT
1444 SCT_LIST_free(s->scts);
aff8c126 1445 OPENSSL_free(s->ext.scts);
ed29e82a 1446#endif
aff8c126
RS		 1447 OPENSSL_free(s->ext.ocsp.resp);
1448 OPENSSL_free(s->ext.alpn);
cfef5027 1449 OPENSSL_free(s->ext.tls13_cookie);
94941cad
MK		 1450 if (s->clienthello != NULL)
1451 OPENSSL_free(s->clienthello->pre_proc_exts);
6b1bb98f 1452 OPENSSL_free(s->clienthello);
9d75dce3
TS		 1453 OPENSSL_free(s->pha_context);
1454 EVP_MD_CTX_free(s->pha_dgst);
0f113f3e 1455
fa7c2637 1456 sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
98732979 1457 sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
0f113f3e 1458
3c95ef22
TS		 1459 OPENSSL_free(s->client_cert_type);
1460 OPENSSL_free(s->server_cert_type);
1461
79b2a2f2 1462 OSSL_STACK_OF_X509_free(s->verified_chain);
696178ed 1463
38b051a1
TM		 1464 if (ssl->method != NULL)
1465 ssl->method->ssl_deinit(ssl);
7c3908dd 1466
ff75a257
MC		 1467 ASYNC_WAIT_CTX_free(s->waitctx);
1468
e481f9b9 1469#if !defined(OPENSSL_NO_NEXTPROTONEG)
aff8c126 1470 OPENSSL_free(s->ext.npn);
ee2ffc27
BL		 1471#endif
1472
e783bae2 1473#ifndef OPENSSL_NO_SRTP
25aaa98a 1474 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
0f113f3e 1475#endif
cd6e89b6
MC		 1476
1477 /*
1478 * We do this late. We want to ensure that any other references we held to
1479 * these BIOs are freed first *before* we call BIO_free_all(), because
1480 * BIO_free_all() will only free each BIO in the chain if the number of
1481 * references to the first BIO have dropped to 0
1482 */
1483 BIO_free_all(s->wbio);
1484 s->wbio = NULL;
1485 BIO_free_all(s->rbio);
1486 s->rbio = NULL;
ee58915c 1487 OPENSSL_free(s->s3.tmp.valid_flags);
0f113f3e
MC		 1488}
1489
65e2d672 1490void SSL_set0_rbio(SSL *s, BIO *rbio)
3ffbe008 1491{
38b051a1 1492 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
03bacce8 1493
6d495cc4
HL		 1494#ifndef OPENSSL_NO_QUIC
1495 if (IS_QUIC(s)) {
1496 ossl_quic_conn_set0_net_rbio(s, rbio);
03bacce8
HL		 1497 return;
1498 }
1499#endif
38b051a1
TM		 1500
1501 if (sc == NULL)
1502 return;
1503
1504 BIO_free_all(sc->rbio);
1505 sc->rbio = rbio;
cffafb5f 1506 sc->rlayer.rrlmethod->set1_bio(sc->rlayer.rrl, sc->rbio);
3ffbe008
MC		 1507}
1508
65e2d672 1509void SSL_set0_wbio(SSL *s, BIO *wbio)
0f113f3e 1510{
38b051a1 1511 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
03bacce8 1512
6d495cc4
HL		 1513#ifndef OPENSSL_NO_QUIC
1514 if (IS_QUIC(s)) {
1515 ossl_quic_conn_set0_net_wbio(s, wbio);
03bacce8
HL		 1516 return;
1517 }
1518#endif
38b051a1
TM		 1519
1520 if (sc == NULL)
1521 return;
1522
0f113f3e
MC		 1523 /*
1524 * If the output buffering BIO is still in place, remove it
1525 */
38b051a1
TM		 1526 if (sc->bbio != NULL)
1527 sc->wbio = BIO_pop(sc->wbio);
2e7dc7cd 1528
38b051a1
TM		 1529 BIO_free_all(sc->wbio);
1530 sc->wbio = wbio;
2e7dc7cd
MC		 1531
1532 /* Re-attach |bbio| to the new |wbio|. */
38b051a1
TM		 1533 if (sc->bbio != NULL)
1534 sc->wbio = BIO_push(sc->bbio, sc->wbio);
b5cf81f7
MC		 1535
1536 sc->rlayer.wrlmethod->set1_bio(sc->rlayer.wrl, sc->wbio);
0f113f3e 1537}
d02b48c6 1538
3ffbe008
MC		 1539void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1540{
65e2d672
MC		 1541 /*
1542 * For historical reasons, this function has many different cases in
1543 * ownership handling.
1544 */
1545
1546 /* If nothing has changed, do nothing */
1547 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1548 return;
1549
1550 /*
1551 * If the two arguments are equal then one fewer reference is granted by the
1552 * caller than we want to take
1553 */
1554 if (rbio != NULL && rbio == wbio)
1555 BIO_up_ref(rbio);
1556
1557 /*
1558 * If only the wbio is changed only adopt one reference.
1559 */
1560 if (rbio == SSL_get_rbio(s)) {
1561 SSL_set0_wbio(s, wbio);
1562 return;
1563 }
1564 /*
1565 * There is an asymmetry here for historical reasons. If only the rbio is
1566 * changed AND the rbio and wbio were originally different, then we only
1567 * adopt one reference.
1568 */
1569 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1570 SSL_set0_rbio(s, rbio);
1571 return;
1572 }
1573
1574 /* Otherwise, adopt both references. */
1575 SSL_set0_rbio(s, rbio);
1576 SSL_set0_wbio(s, wbio);
3ffbe008
MC		 1577}
1578
0821bcd4 1579BIO *SSL_get_rbio(const SSL *s)
0f113f3e 1580{
38b051a1 1581 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
03bacce8 1582
6d495cc4
HL		 1583#ifndef OPENSSL_NO_QUIC
1584 if (IS_QUIC(s))
1585 return ossl_quic_conn_get_net_rbio(s);
03bacce8 1586#endif
38b051a1
TM		 1587
1588 if (sc == NULL)
1589 return NULL;
1590
1591 return sc->rbio;
0f113f3e 1592}
d02b48c6 1593
0821bcd4 1594BIO *SSL_get_wbio(const SSL *s)
0f113f3e 1595{
38b051a1 1596 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
03bacce8 1597
6d495cc4
HL		 1598#ifndef OPENSSL_NO_QUIC
1599 if (IS_QUIC(s))
1600 return ossl_quic_conn_get_net_wbio(s);
03bacce8 1601#endif
38b051a1
TM		 1602
1603 if (sc == NULL)
1604 return NULL;
1605
1606 if (sc->bbio != NULL) {
2e7dc7cd
MC		 1607 /*
1608 * If |bbio| is active, the true caller-configured BIO is its
1609 * |next_bio|.
1610 */
38b051a1 1611 return BIO_next(sc->bbio);
2e7dc7cd 1612 }
38b051a1 1613 return sc->wbio;
0f113f3e 1614}
d02b48c6 1615
0821bcd4 1616int SSL_get_fd(const SSL *s)
0f113f3e 1617{
2e7dc7cd 1618 return SSL_get_rfd(s);
0f113f3e 1619}
24cbf3ef 1620
0821bcd4 1621int SSL_get_rfd(const SSL *s)
0f113f3e
MC		 1622{
1623 int ret = -1;
1624 BIO *b, *r;
1625
1626 b = SSL_get_rbio(s);
1627 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1628 if (r != NULL)
1629 BIO_get_fd(r, &ret);
26a7d938 1630 return ret;
0f113f3e 1631}
d02b48c6 1632
0821bcd4 1633int SSL_get_wfd(const SSL *s)
0f113f3e
MC		 1634{
1635 int ret = -1;
1636 BIO *b, *r;
1637
1638 b = SSL_get_wbio(s);
1639 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1640 if (r != NULL)
1641 BIO_get_fd(r, &ret);
26a7d938 1642 return ret;
0f113f3e 1643}
24cbf3ef 1644
bc36ee62 1645#ifndef OPENSSL_NO_SOCK
d6e7ebba
HL		 1646static const BIO_METHOD *fd_method(SSL *s)
1647{
1648#ifndef OPENSSL_NO_DGRAM
1649 if (IS_QUIC(s))
1650 return BIO_s_datagram();
1651#endif
1652
1653 return BIO_s_socket();
1654}
1655
0f113f3e
MC		 1656int SSL_set_fd(SSL *s, int fd)
1657{
1658 int ret = 0;
1659 BIO *bio = NULL;
1660
d6e7ebba
HL		 1661 if (s->type == SSL_TYPE_QUIC_XSO) {
1662 ERR_raise(ERR_LIB_SSL, SSL_R_CONN_USE_ONLY);
1663 goto err;
1664 }
1665
1666 bio = BIO_new(fd_method(s));
0f113f3e
MC		 1667
1668 if (bio == NULL) {
6849b73c 1669 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
0f113f3e
MC		 1670 goto err;
1671 }
1672 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1673 SSL_set_bio(s, bio, bio);
50ec7505
BP		 1674#ifndef OPENSSL_NO_KTLS
1675 /*
1676 * The new socket is created successfully regardless of ktls_enable.
1677 * ktls_enable doesn't change any functionality of the socket, except
1678 * changing the setsockopt to enable the processing of ktls_start.
1679 * Thus, it is not a problem to call it for non-TLS sockets.
1680 */
1681 ktls_enable(fd);
1682#endif /* OPENSSL_NO_KTLS */
0f113f3e
MC		 1683 ret = 1;
1684 err:
26a7d938 1685 return ret;
0f113f3e 1686}
d02b48c6 1687
0f113f3e
MC		 1688int SSL_set_wfd(SSL *s, int fd)
1689{
2e7dc7cd 1690 BIO *rbio = SSL_get_rbio(s);
d6e7ebba
HL		 1691 int desired_type = IS_QUIC(s) ? BIO_TYPE_DGRAM : BIO_TYPE_SOCKET;
1692
1693 if (s->type == SSL_TYPE_QUIC_XSO) {
1694 ERR_raise(ERR_LIB_SSL, SSL_R_CONN_USE_ONLY);
1695 return 0;
1696 }
0f113f3e 1697
5e6015af 1698 if (rbio == NULL || BIO_method_type(rbio) != desired_type
2e7dc7cd 1699 || (int)BIO_get_fd(rbio, NULL) != fd) {
d6e7ebba 1700 BIO *bio = BIO_new(fd_method(s));
0f113f3e
MC		 1701
1702 if (bio == NULL) {
6849b73c 1703 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
2e7dc7cd 1704 return 0;
0f113f3e
MC		 1705 }
1706 BIO_set_fd(bio, fd, BIO_NOCLOSE);
65e2d672 1707 SSL_set0_wbio(s, bio);
50ec7505
BP		 1708#ifndef OPENSSL_NO_KTLS
1709 /*
1710 * The new socket is created successfully regardless of ktls_enable.
1711 * ktls_enable doesn't change any functionality of the socket, except
1712 * changing the setsockopt to enable the processing of ktls_start.
1713 * Thus, it is not a problem to call it for non-TLS sockets.
1714 */
1715 ktls_enable(fd);
1716#endif /* OPENSSL_NO_KTLS */
2e7dc7cd 1717 } else {
65e2d672
MC		 1718 BIO_up_ref(rbio);
1719 SSL_set0_wbio(s, rbio);
2e7dc7cd
MC		 1720 }
1721 return 1;
0f113f3e
MC		 1722}
1723
1724int SSL_set_rfd(SSL *s, int fd)
1725{
2e7dc7cd 1726 BIO *wbio = SSL_get_wbio(s);
d6e7ebba
HL		 1727 int desired_type = IS_QUIC(s) ? BIO_TYPE_DGRAM : BIO_TYPE_SOCKET;
1728
1729 if (s->type == SSL_TYPE_QUIC_XSO) {
1730 ERR_raise(ERR_LIB_SSL, SSL_R_CONN_USE_ONLY);
1731 return 0;
1732 }
0f113f3e 1733
5e6015af 1734 if (wbio == NULL || BIO_method_type(wbio) != desired_type
2e7dc7cd 1735 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
d6e7ebba 1736 BIO *bio = BIO_new(fd_method(s));
0f113f3e
MC		 1737
1738 if (bio == NULL) {
6849b73c 1739 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
2e7dc7cd 1740 return 0;
0f113f3e
MC		 1741 }
1742 BIO_set_fd(bio, fd, BIO_NOCLOSE);
65e2d672 1743 SSL_set0_rbio(s, bio);
2e7dc7cd 1744 } else {
65e2d672
MC		 1745 BIO_up_ref(wbio);
1746 SSL_set0_rbio(s, wbio);
2e7dc7cd
MC		 1747 }
1748
1749 return 1;
0f113f3e
MC		 1750}
1751#endif
ca03109c
BM		 1752
1753/* return length of latest Finished message we sent, copy to 'buf' */
0821bcd4 1754size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
0f113f3e
MC		 1755{
1756 size_t ret = 0;
38b051a1
TM		 1757 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1758
1759 if (sc == NULL)
1760 return 0;
0f113f3e 1761
38b051a1 1762 ret = sc->s3.tmp.finish_md_len;
555cbb32
TS		 1763 if (count > ret)
1764 count = ret;
38b051a1 1765 memcpy(buf, sc->s3.tmp.finish_md, count);
0f113f3e
MC		 1766 return ret;
1767}
ca03109c
BM		 1768
1769/* return length of latest Finished message we expected, copy to 'buf' */
0821bcd4 1770size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
0f113f3e
MC		 1771{
1772 size_t ret = 0;
38b051a1 1773 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
ca03109c 1774
38b051a1
TM		 1775 if (sc == NULL)
1776 return 0;
1777
1778 ret = sc->s3.tmp.peer_finish_md_len;
555cbb32
TS		 1779 if (count > ret)
1780 count = ret;
38b051a1 1781 memcpy(buf, sc->s3.tmp.peer_finish_md, count);
0f113f3e
MC		 1782 return ret;
1783}
ca03109c 1784
0821bcd4 1785int SSL_get_verify_mode(const SSL *s)
0f113f3e 1786{
38b051a1
TM		 1787 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1788
1789 if (sc == NULL)
1790 return 0;
1791
1792 return sc->verify_mode;
0f113f3e 1793}
d02b48c6 1794
0821bcd4 1795int SSL_get_verify_depth(const SSL *s)
0f113f3e 1796{
38b051a1
TM		 1797 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1798
1799 if (sc == NULL)
1800 return 0;
1801
1802 return X509_VERIFY_PARAM_get_depth(sc->param);
0f113f3e 1803}
7f89714e 1804
0f113f3e 1805int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
38b051a1
TM		 1806 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1807
1808 if (sc == NULL)
1809 return NULL;
1810
1811 return sc->verify_callback;
0f113f3e 1812}
d02b48c6 1813
0821bcd4 1814int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
0f113f3e 1815{
26a7d938 1816 return ctx->verify_mode;
0f113f3e 1817}
d02b48c6 1818
0821bcd4 1819int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
0f113f3e
MC		 1820{
1821 return X509_VERIFY_PARAM_get_depth(ctx->param);
1822}
1823
1824int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
26a7d938 1825 return ctx->default_verify_callback;
0f113f3e
MC		 1826}
1827
1828void SSL_set_verify(SSL *s, int mode,
1829 int (*callback) (int ok, X509_STORE_CTX *ctx))
1830{
38b051a1
TM		 1831 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1832
1833 if (sc == NULL)
1834 return;
1835
1836 sc->verify_mode = mode;
0f113f3e 1837 if (callback != NULL)
38b051a1 1838 sc->verify_callback = callback;
0f113f3e
MC		 1839}
1840
1841void SSL_set_verify_depth(SSL *s, int depth)
1842{
38b051a1
TM		 1843 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1844
1845 if (sc == NULL)
1846 return;
1847
1848 X509_VERIFY_PARAM_set_depth(sc->param, depth);
0f113f3e
MC		 1849}
1850
1851void SSL_set_read_ahead(SSL *s, int yes)
1852{
9562842b 1853 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4566dae7 1854 OSSL_PARAM options[2], *opts = options;
38b051a1 1855
9562842b 1856 if (sc == NULL)
38b051a1
TM		 1857 return;
1858
1859 RECORD_LAYER_set_read_ahead(&sc->rlayer, yes);
4566dae7
MC		 1860
1861 *opts++ = OSSL_PARAM_construct_int(OSSL_LIBSSL_RECORD_LAYER_PARAM_READ_AHEAD,
1862 &sc->rlayer.read_ahead);
1863 *opts = OSSL_PARAM_construct_end();
1864
1865 /* Ignore return value */
1866 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
0f113f3e 1867}
d02b48c6 1868
0821bcd4 1869int SSL_get_read_ahead(const SSL *s)
0f113f3e 1870{
9562842b 1871 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
38b051a1 1872
9562842b 1873 if (sc == NULL)
38b051a1
TM		 1874 return 0;
1875
1876 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
0f113f3e 1877}
d02b48c6 1878
0821bcd4 1879int SSL_pending(const SSL *s)
0f113f3e 1880{
8b0e934a
MC		 1881 size_t pending = s->method->ssl_pending(s);
1882
0f113f3e
MC		 1883 /*
1884 * SSL_pending cannot work properly if read-ahead is enabled
1885 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1886 * impossible to fix since SSL_pending cannot report errors that may be
1887 * observed while scanning the new data. (Note that SSL_pending() is
1888 * often used as a boolean value, so we'd better not return -1.)
8b0e934a
MC		 1889 *
1890 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1891 * we just return INT_MAX.
0f113f3e 1892 */
348240c6 1893 return pending < INT_MAX ? (int)pending : INT_MAX;
0f113f3e 1894}
d02b48c6 1895
49580f25
MC		 1896int SSL_has_pending(const SSL *s)
1897{
1898 /*
1899 * Similar to SSL_pending() but returns a 1 to indicate that we have
6d6b295a
MC		 1900 * processed or unprocessed data available or 0 otherwise (as opposed to the
1901 * number of bytes available). Unlike SSL_pending() this will take into
1902 * account read_ahead data. A 1 return simply indicates that we have data.
1903 * That data may not result in any application data, or we may fail to parse
1904 * the records for some reason.
49580f25 1905 */
560470b5 1906 const SSL_CONNECTION *sc;
560470b5 1907
22b1a96f
HL		 1908#ifndef OPENSSL_NO_QUIC
1909 if (IS_QUIC(s))
6d495cc4 1910 return ossl_quic_has_pending(s);
560470b5
MC		 1911#endif
1912
560470b5 1913 sc = SSL_CONNECTION_FROM_CONST_SSL(s);
38b051a1 1914
6d6b295a
MC		 1915 /* Check buffered app data if any first */
1916 if (SSL_CONNECTION_IS_DTLS(sc)) {
eddb067e 1917 TLS_RECORD *rdata;
6d6b295a
MC		 1918 pitem *item, *iter;
1919
1920 iter = pqueue_iterator(sc->rlayer.d->buffered_app_data.q);
1921 while ((item = pqueue_next(&iter)) != NULL) {
1922 rdata = item->data;
eddb067e 1923 if (rdata->length > 0)
6d6b295a
MC		 1924 return 1;
1925 }
1926 }
38b051a1
TM		 1927
1928 if (RECORD_LAYER_processed_read_pending(&sc->rlayer))
49580f25
MC		 1929 return 1;
1930
38b051a1 1931 return RECORD_LAYER_read_pending(&sc->rlayer);
49580f25
MC		 1932}
1933
8c2bfd25 1934X509 *SSL_get1_peer_certificate(const SSL *s)
0f113f3e 1935{
8c2bfd25 1936 X509 *r = SSL_get0_peer_certificate(s);
d02b48c6 1937
8c2bfd25
TS		 1938 if (r != NULL)
1939 X509_up_ref(r);
0f113f3e 1940
26a7d938 1941 return r;
0f113f3e 1942}
d02b48c6 1943
8c2bfd25
TS		 1944X509 *SSL_get0_peer_certificate(const SSL *s)
1945{
38b051a1
TM		 1946 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1947
1948 if (sc == NULL)
1949 return NULL;
1950
1951 if (sc->session == NULL)
8c2bfd25
TS		 1952 return NULL;
1953 else
38b051a1 1954 return sc->session->peer;
8c2bfd25
TS		 1955}
1956
0821bcd4 1957STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
0f113f3e
MC		 1958{
1959 STACK_OF(X509) *r;
38b051a1 1960 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
0f113f3e 1961
38b051a1
TM		 1962 if (sc == NULL)
1963 return NULL;
1964
1965 if (sc->session == NULL)
0f113f3e
MC		 1966 r = NULL;
1967 else
38b051a1 1968 r = sc->session->peer_chain;
0f113f3e
MC		 1969
1970 /*
1971 * If we are a client, cert_chain includes the peer's own certificate; if
1972 * we are a server, it does not.
1973 */
1974
26a7d938 1975 return r;
0f113f3e
MC		 1976}
1977
1978/*
1979 * Now in theory, since the calling process own 't' it should be safe to
1980 * modify. We need to be able to read f without being hassled
1981 */
17dd65e6 1982int SSL_copy_session_id(SSL *t, const SSL *f)
0f113f3e 1983{
16203f7b 1984 int i;
44cb36d0 1985 /* TODO(QUIC FUTURE): Not allowed for QUIC currently. */
38b051a1
TM		 1986 SSL_CONNECTION *tsc = SSL_CONNECTION_FROM_SSL_ONLY(t);
1987 const SSL_CONNECTION *fsc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(f);
1988
1989 if (tsc == NULL || fsc == NULL)
1990 return 0;
1991
3e6a0d57 1992 /* Do we need to do SSL locking? */
61986d32 1993 if (!SSL_set_session(t, SSL_get_session(f))) {
17dd65e6 1994 return 0;
69f68237 1995 }
0f113f3e
MC		 1996
1997 /*
87d9cafa 1998 * what if we are setup for one protocol version but want to talk another
0f113f3e
MC		 1999 */
2000 if (t->method != f->method) {
38b051a1 2001 t->method->ssl_deinit(t);
919ba009 2002 t->method = f->method;
38b051a1 2003 if (t->method->ssl_init(t) == 0)
919ba009 2004 return 0;
0f113f3e
MC		 2005 }
2006
43a07d6d 2007 CRYPTO_UP_REF(&fsc->cert->references, &i);
38b051a1
TM		 2008 ssl_cert_free(tsc->cert);
2009 tsc->cert = fsc->cert;
2010 if (!SSL_set_session_id_context(t, fsc->sid_ctx, (int)fsc->sid_ctx_length)) {
17dd65e6 2011 return 0;
69f68237 2012 }
17dd65e6
MC		 2013
2014 return 1;
0f113f3e 2015}
d02b48c6 2016
58964a49 2017/* Fix this so it checks all the valid key/cert options */
0821bcd4 2018int SSL_CTX_check_private_key(const SSL_CTX *ctx)
0f113f3e 2019{
a230b26e 2020 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
6849b73c 2021 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
26a7d938 2022 return 0;
0f113f3e
MC		 2023 }
2024 if (ctx->cert->key->privatekey == NULL) {
6849b73c 2025 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
26a7d938 2026 return 0;
0f113f3e 2027 }
26a7d938
K		 2028 return X509_check_private_key
2029 (ctx->cert->key->x509, ctx->cert->key->privatekey);
0f113f3e 2030}
d02b48c6 2031
58964a49 2032/* Fix this function so that it takes an optional type parameter */
0821bcd4 2033int SSL_check_private_key(const SSL *ssl)
0f113f3e 2034{
38b051a1
TM		 2035 const SSL_CONNECTION *sc;
2036
2037 if ((sc = SSL_CONNECTION_FROM_CONST_SSL(ssl)) == NULL) {
6849b73c 2038 ERR_raise(ERR_LIB_SSL, ERR_R_PASSED_NULL_PARAMETER);
26a7d938 2039 return 0;
0f113f3e 2040 }
38b051a1 2041 if (sc->cert->key->x509 == NULL) {
6849b73c 2042 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
26a7d938 2043 return 0;
0f113f3e 2044 }
38b051a1 2045 if (sc->cert->key->privatekey == NULL) {
6849b73c 2046 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
26a7d938 2047 return 0;
0f113f3e 2048 }
38b051a1
TM		 2049 return X509_check_private_key(sc->cert->key->x509,
2050 sc->cert->key->privatekey);
0f113f3e 2051}
d02b48c6 2052
07bbc92c
MC		 2053int SSL_waiting_for_async(SSL *s)
2054{
38b051a1
TM		 2055 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2056
2057 if (sc == NULL)
2058 return 0;
2059
2060 if (sc->job)
82676094
MC		 2061 return 1;
2062
07bbc92c
MC		 2063 return 0;
2064}
2065
ff75a257 2066int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
f4da39d2 2067{
38b051a1
TM		 2068 ASYNC_WAIT_CTX *ctx;
2069 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
ff75a257 2070
38b051a1
TM		 2071 if (sc == NULL)
2072 return 0;
2073
2074 if ((ctx = sc->waitctx) == NULL)
ff75a257
MC		 2075 return 0;
2076 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
2077}
f4da39d2 2078
ff75a257
MC		 2079int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
2080 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
2081{
38b051a1
TM		 2082 ASYNC_WAIT_CTX *ctx;
2083 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
ff75a257 2084
38b051a1
TM		 2085 if (sc == NULL)
2086 return 0;
2087
2088 if ((ctx = sc->waitctx) == NULL)
ff75a257
MC		 2089 return 0;
2090 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
2091 numdelfds);
f4da39d2
MC		 2092}
2093
9f5a87fd
PY		 2094int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback)
2095{
2096 ctx->async_cb = callback;
2097 return 1;
2098}
2099
2100int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg)
2101{
2102 ctx->async_cb_arg = arg;
2103 return 1;
2104}
2105
2106int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback)
2107{
38b051a1
TM		 2108 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2109
2110 if (sc == NULL)
2111 return 0;
2112
2113 sc->async_cb = callback;
9f5a87fd
PY		 2114 return 1;
2115}
2116
2117int SSL_set_async_callback_arg(SSL *s, void *arg)
2118{
38b051a1
TM		 2119 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2120
2121 if (sc == NULL)
2122 return 0;
2123
2124 sc->async_cb_arg = arg;
9f5a87fd
PY		 2125 return 1;
2126}
2127
2128int SSL_get_async_status(SSL *s, int *status)
2129{
38b051a1
TM		 2130 ASYNC_WAIT_CTX *ctx;
2131 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
9f5a87fd 2132
38b051a1
TM		 2133 if (sc == NULL)
2134 return 0;
2135
2136 if ((ctx = sc->waitctx) == NULL)
9f5a87fd
PY		 2137 return 0;
2138 *status = ASYNC_WAIT_CTX_get_status(ctx);
2139 return 1;
2140}
2141
4f43d0e7 2142int SSL_accept(SSL *s)
0f113f3e 2143{
38b051a1 2144 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
03bacce8 2145
6d495cc4
HL		 2146#ifndef OPENSSL_NO_QUIC
2147 if (IS_QUIC(s))
03bacce8 2148 return s->method->ssl_accept(s);
6292519c 2149#endif
38b051a1
TM		 2150
2151 if (sc == NULL)
2152 return 0;
2153
2154 if (sc->handshake_func == NULL) {
0f113f3e
MC		 2155 /* Not properly initialized yet */
2156 SSL_set_accept_state(s);
07bbc92c 2157 }
add2f5ca
MC		 2158
2159 return SSL_do_handshake(s);
0f113f3e 2160}
d02b48c6 2161
4f43d0e7 2162int SSL_connect(SSL *s)
0f113f3e 2163{
38b051a1 2164 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
03bacce8 2165
6d495cc4
HL		 2166#ifndef OPENSSL_NO_QUIC
2167 if (IS_QUIC(s))
03bacce8 2168 return s->method->ssl_connect(s);
6292519c 2169#endif
38b051a1
TM		 2170
2171 if (sc == NULL)
2172 return 0;
2173
2174 if (sc->handshake_func == NULL) {
0f113f3e
MC		 2175 /* Not properly initialized yet */
2176 SSL_set_connect_state(s);
add2f5ca 2177 }
b31b04d9 2178
add2f5ca 2179 return SSL_do_handshake(s);
0f113f3e 2180}
d02b48c6 2181
0821bcd4 2182long SSL_get_default_timeout(const SSL *s)
0f113f3e 2183{
f0131dc0 2184 return (long int)ossl_time2seconds(s->method->get_timeout());
0f113f3e
MC		 2185}
2186
9f5a87fd
PY		 2187static int ssl_async_wait_ctx_cb(void *arg)
2188{
2189 SSL *s = (SSL *)arg;
38b051a1 2190 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
9f5a87fd 2191
38b051a1
TM		 2192 if (sc == NULL)
2193 return 0;
2194
2195 return sc->async_cb(s, sc->async_cb_arg);
9f5a87fd
PY		 2196}
2197
7fecbf6f 2198static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
a230b26e
EK		 2199 int (*func) (void *))
2200{
add2f5ca 2201 int ret;
38b051a1
TM		 2202 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2203
2204 if (sc == NULL)
2205 return 0;
2206
2207 if (sc->waitctx == NULL) {
2208 sc->waitctx = ASYNC_WAIT_CTX_new();
2209 if (sc->waitctx == NULL)
ff75a257 2210 return -1;
38b051a1 2211 if (sc->async_cb != NULL
9f5a87fd 2212 && !ASYNC_WAIT_CTX_set_callback
38b051a1 2213 (sc->waitctx, ssl_async_wait_ctx_cb, s))
9f5a87fd 2214 return -1;
ff75a257 2215 }
07f620e3 2216
38b051a1
TM		 2217 sc->rwstate = SSL_NOTHING;
2218 switch (ASYNC_start_job(&sc->job, sc->waitctx, &ret, func, args,
a230b26e 2219 sizeof(struct ssl_async_args))) {
add2f5ca 2220 case ASYNC_ERR:
38b051a1 2221 sc->rwstate = SSL_NOTHING;
6849b73c 2222 ERR_raise(ERR_LIB_SSL, SSL_R_FAILED_TO_INIT_ASYNC);
add2f5ca
MC		 2223 return -1;
2224 case ASYNC_PAUSE:
38b051a1 2225 sc->rwstate = SSL_ASYNC_PAUSED;
add2f5ca 2226 return -1;
fc7f190c 2227 case ASYNC_NO_JOBS:
38b051a1 2228 sc->rwstate = SSL_ASYNC_NO_JOBS;
fc7f190c 2229 return -1;
add2f5ca 2230 case ASYNC_FINISH:
38b051a1 2231 sc->job = NULL;
add2f5ca
MC		 2232 return ret;
2233 default:
38b051a1 2234 sc->rwstate = SSL_NOTHING;
6849b73c 2235 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
add2f5ca
MC		 2236 /* Shouldn't happen */
2237 return -1;
2238 }
2239}
07bbc92c 2240
add2f5ca 2241static int ssl_io_intern(void *vargs)
07bbc92c
MC		 2242{
2243 struct ssl_async_args *args;
2244 SSL *s;
2245 void *buf;
348240c6 2246 size_t num;
38b051a1 2247 SSL_CONNECTION *sc;
07bbc92c
MC		 2248
2249 args = (struct ssl_async_args *)vargs;
2250 s = args->s;
2251 buf = args->buf;
2252 num = args->num;
38b051a1
TM		 2253 if ((sc = SSL_CONNECTION_FROM_SSL(s)) == NULL)
2254 return -1;
2255
ec447924
MC		 2256 switch (args->type) {
2257 case READFUNC:
38b051a1 2258 return args->f.func_read(s, buf, num, &sc->asyncrw);
ec447924 2259 case WRITEFUNC:
38b051a1 2260 return args->f.func_write(s, buf, num, &sc->asyncrw);
ec447924
MC		 2261 case OTHERFUNC:
2262 return args->f.func_other(s);
2263 }
2264 return -1;
07bbc92c
MC		 2265}
2266
4ee7d3f9 2267int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
0f113f3e 2268{
38b051a1 2269 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
03bacce8 2270
6d495cc4
HL		 2271#ifndef OPENSSL_NO_QUIC
2272 if (IS_QUIC(s))
03bacce8 2273 return s->method->ssl_read(s, buf, num, readbytes);
6292519c 2274#endif
38b051a1
TM		 2275
2276 if (sc == NULL)
2277 return -1;
2278
2279 if (sc->handshake_func == NULL) {
6849b73c 2280 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
0f113f3e
MC		 2281 return -1;
2282 }
2283
38b051a1
TM		 2284 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2285 sc->rwstate = SSL_NOTHING;
4ee7d3f9 2286 return 0;
0f113f3e 2287 }
07bbc92c 2288
38b051a1
TM		 2289 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2290 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
6849b73c 2291 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
0a5ece5b
MC		 2292 return 0;
2293 }
564547e4
MC		 2294 /*
2295 * If we are a client and haven't received the ServerHello etc then we
2296 * better do that
2297 */
38b051a1 2298 ossl_statem_check_finish_init(sc, 0);
0a5ece5b 2299
38b051a1 2300 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
add2f5ca 2301 struct ssl_async_args args;
eda75751 2302 int ret;
add2f5ca
MC		 2303
2304 args.s = s;
2305 args.buf = buf;
2306 args.num = num;
ec447924
MC		 2307 args.type = READFUNC;
2308 args.f.func_read = s->method->ssl_read;
add2f5ca 2309
eda75751 2310 ret = ssl_start_async_job(s, &args, ssl_io_intern);
38b051a1 2311 *readbytes = sc->asyncrw;
eda75751 2312 return ret;
07bbc92c 2313 } else {
54105ddd 2314 return s->method->ssl_read(s, buf, num, readbytes);
07bbc92c 2315 }
0f113f3e
MC		 2316}
2317
4ee7d3f9 2318int SSL_read(SSL *s, void *buf, int num)
eda75751
MC		 2319{
2320 int ret;
54105ddd 2321 size_t readbytes;
eda75751
MC		 2322
2323 if (num < 0) {
6849b73c 2324 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
eda75751
MC		 2325 return -1;
2326 }
2327
4ee7d3f9 2328 ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
eda75751
MC		 2329
2330 /*
2331 * The cast is safe here because ret should be <= INT_MAX because num is
2332 * <= INT_MAX
2333 */
2334 if (ret > 0)
54105ddd 2335 ret = (int)readbytes;
eda75751
MC		 2336
2337 return ret;
2338}
2339
4ee7d3f9
KR		 2340int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2341{
2342 int ret = ssl_read_internal(s, buf, num, readbytes);
2343
2344 if (ret < 0)
2345 ret = 0;
2346 return ret;
2347}
2348
f533fbd4 2349int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
d781d247
MC		 2350{
2351 int ret;
38b051a1
TM		 2352 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2353
d6e7ebba
HL		 2354 /* TODO(QUIC 0RTT): 0-RTT support */
2355 if (sc == NULL || !sc->server) {
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
38b051a1 2360 switch (sc->early_data_state) {
d781d247
MC		 2361 case SSL_EARLY_DATA_NONE:
2362 if (!SSL_in_before(s)) {
6849b73c 2363 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
f533fbd4 2364 return SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 2365 }
2366 /* fall through */
2367
2368 case SSL_EARLY_DATA_ACCEPT_RETRY:
38b051a1 2369 sc->early_data_state = SSL_EARLY_DATA_ACCEPTING;
d781d247
MC		 2370 ret = SSL_accept(s);
2371 if (ret <= 0) {
2372 /* NBIO or error */
38b051a1 2373 sc->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
f533fbd4 2374 return SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 2375 }
2376 /* fall through */
2377
2378 case SSL_EARLY_DATA_READ_RETRY:
38b051a1
TM		 2379 if (sc->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
2380 sc->early_data_state = SSL_EARLY_DATA_READING;
d781d247
MC		 2381 ret = SSL_read_ex(s, buf, num, readbytes);
2382 /*
ef6c191b
MC		 2383 * State machine will update early_data_state to
2384 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
2385 * message
d781d247 2386 */
38b051a1 2387 if (ret > 0 || (ret <= 0 && sc->early_data_state
d781d247 2388 != SSL_EARLY_DATA_FINISHED_READING)) {
38b051a1 2389 sc->early_data_state = SSL_EARLY_DATA_READ_RETRY;
f533fbd4
MC		 2390 return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
2391 : SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 2392 }
2393 } else {
38b051a1 2394 sc->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
d781d247
MC		 2395 }
2396 *readbytes = 0;
f533fbd4 2397 return SSL_READ_EARLY_DATA_FINISH;
d781d247
MC		 2398
2399 default:
6849b73c 2400 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
f533fbd4 2401 return SSL_READ_EARLY_DATA_ERROR;
d781d247
MC		 2402 }
2403}
2404
f5b519c4 2405int SSL_get_early_data_status(const SSL *s)
1ea4d09a 2406{
38b051a1
TM		 2407 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
2408
d6e7ebba 2409 /* TODO(QUIC 0RTT): 0-RTT support */
38b051a1
TM		 2410 if (sc == NULL)
2411 return 0;
2412
2413 return sc->ext.early_data;
1ea4d09a
MC		 2414}
2415
4ee7d3f9 2416static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
0f113f3e 2417{
38b051a1 2418 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
03bacce8 2419
6d495cc4
HL		 2420#ifndef OPENSSL_NO_QUIC
2421 if (IS_QUIC(s))
03bacce8 2422 return s->method->ssl_peek(s, buf, num, readbytes);
6292519c 2423#endif
38b051a1
TM		 2424
2425 if (sc == NULL)
2426 return 0;
2427
2428 if (sc->handshake_func == NULL) {
6849b73c 2429 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
0f113f3e
MC		 2430 return -1;
2431 }
2432
38b051a1 2433 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
4ee7d3f9 2434 return 0;
0f113f3e 2435 }
38b051a1 2436 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
add2f5ca 2437 struct ssl_async_args args;
eda75751 2438 int ret;
0f113f3e 2439
add2f5ca
MC		 2440 args.s = s;
2441 args.buf = buf;
2442 args.num = num;
ec447924
MC		 2443 args.type = READFUNC;
2444 args.f.func_read = s->method->ssl_peek;
07bbc92c 2445
eda75751 2446 ret = ssl_start_async_job(s, &args, ssl_io_intern);
38b051a1 2447 *readbytes = sc->asyncrw;
eda75751 2448 return ret;
add2f5ca 2449 } else {
54105ddd 2450 return s->method->ssl_peek(s, buf, num, readbytes);
add2f5ca 2451 }
07bbc92c
MC		 2452}
2453
4ee7d3f9 2454int SSL_peek(SSL *s, void *buf, int num)
7ee8627f
MC		 2455{
2456 int ret;
4ee7d3f9 2457 size_t readbytes;
7ee8627f
MC		 2458
2459 if (num < 0) {
6849b73c 2460 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
7ee8627f
MC		 2461 return -1;
2462 }
2463
4ee7d3f9 2464 ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
7ee8627f
MC		 2465
2466 /*
2467 * The cast is safe here because ret should be <= INT_MAX because num is
2468 * <= INT_MAX
2469 */
2470 if (ret > 0)
4ee7d3f9 2471 ret = (int)readbytes;
7ee8627f
MC		 2472
2473 return ret;
2474}
2475
4ee7d3f9
KR		 2476
2477int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2478{
2479 int ret = ssl_peek_internal(s, buf, num, readbytes);
2480
2481 if (ret < 0)
2482 ret = 0;
2483 return ret;
2484}
2485
113be15a
HL		 2486int ssl_write_internal(SSL *s, const void *buf, size_t num,
2487 uint64_t flags, size_t *written)
0f113f3e 2488{
38b051a1 2489 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
03bacce8 2490
6d495cc4
HL		 2491#ifndef OPENSSL_NO_QUIC
2492 if (IS_QUIC(s))
113be15a 2493 return ossl_quic_write_flags(s, buf, num, flags, written);
6292519c 2494#endif
38b051a1
TM		 2495
2496 if (sc == NULL)
2497 return 0;
2498
2499 if (sc->handshake_func == NULL) {
6849b73c 2500 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
0f113f3e
MC		 2501 return -1;
2502 }
2503
38b051a1
TM		 2504 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2505 sc->rwstate = SSL_NOTHING;
6849b73c 2506 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
4ee7d3f9 2507 return -1;
0f113f3e 2508 }
07bbc92c 2509
113be15a
HL		 2510 if (flags != 0) {
2511 ERR_raise(ERR_LIB_SSL, SSL_R_UNSUPPORTED_WRITE_FLAG);
2512 return -1;
2513 }
2514
38b051a1
TM		 2515 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2516 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
2517 || sc->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
6849b73c 2518 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
49e7fe12 2519 return 0;
0a5ece5b 2520 }
564547e4 2521 /* If we are a client and haven't sent the Finished we better do that */
38b051a1 2522 ossl_statem_check_finish_init(sc, 1);
49e7fe12 2523
38b051a1 2524 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
7ee8627f 2525 int ret;
add2f5ca
MC		 2526 struct ssl_async_args args;
2527
2528 args.s = s;
2529 args.buf = (void *)buf;
2530 args.num = num;
ec447924
MC		 2531 args.type = WRITEFUNC;
2532 args.f.func_write = s->method->ssl_write;
add2f5ca 2533
7ee8627f 2534 ret = ssl_start_async_job(s, &args, ssl_io_intern);
38b051a1 2535 *written = sc->asyncrw;
7ee8627f 2536 return ret;
07bbc92c 2537 } else {
7ee8627f 2538 return s->method->ssl_write(s, buf, num, written);
07bbc92c 2539 }
0f113f3e 2540}
d02b48c6 2541
7c3a7561
BP		 2542ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size, int flags)
2543{
2544 ossl_ssize_t ret;
38b051a1 2545 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7c3a7561 2546
38b051a1
TM		 2547 if (sc == NULL)
2548 return 0;
2549
2550 if (sc->handshake_func == NULL) {
6849b73c 2551 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
7c3a7561
BP		 2552 return -1;
2553 }
2554
38b051a1
TM		 2555 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2556 sc->rwstate = SSL_NOTHING;
6849b73c 2557 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
7c3a7561
BP		 2558 return -1;
2559 }
2560
38b051a1 2561 if (!BIO_get_ktls_send(sc->wbio)) {
6849b73c 2562 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
7c3a7561
BP		 2563 return -1;
2564 }
2565
2566 /* If we have an alert to send, lets send it */
73243502 2567 if (sc->s3.alert_dispatch > 0) {
7c3a7561
BP		 2568 ret = (ossl_ssize_t)s->method->ssl_dispatch_alert(s);
2569 if (ret <= 0) {
2570 /* SSLfatal() already called if appropriate */
2571 return ret;
2572 }
2573 /* if it went, fall through and send more stuff */
2574 }
2575
38b051a1
TM		 2576 sc->rwstate = SSL_WRITING;
2577 if (BIO_flush(sc->wbio) <= 0) {
2578 if (!BIO_should_retry(sc->wbio)) {
2579 sc->rwstate = SSL_NOTHING;
7c3a7561
BP		 2580 } else {
2581#ifdef EAGAIN
2582 set_sys_error(EAGAIN);
2583#endif
2584 }
2585 return -1;
2586 }
2587
712c0942 2588#ifdef OPENSSL_NO_KTLS
fa7a8074
RL		 2589 ERR_raise_data(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR,
2590 "can't call ktls_sendfile(), ktls disabled");
712c0942 2591 return -1;
7c3a7561 2592#else
712c0942 2593 ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags);
7c3a7561
BP		 2594 if (ret < 0) {
2595#if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2596 if ((get_last_sys_error() == EAGAIN) ||
2597 (get_last_sys_error() == EINTR) ||
2598 (get_last_sys_error() == EBUSY))
38b051a1 2599 BIO_set_retry_write(sc->wbio);
7c3a7561
BP		 2600 else
2601#endif
6849b73c 2602 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
7c3a7561
BP		 2603 return ret;
2604 }
38b051a1 2605 sc->rwstate = SSL_NOTHING;
7c3a7561 2606 return ret;
712c0942 2607#endif
7c3a7561
BP		 2608}
2609
4ee7d3f9
KR		 2610int SSL_write(SSL *s, const void *buf, int num)
2611{
2612 int ret;
2613 size_t written;
2614
2615 if (num < 0) {
6849b73c 2616 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
4ee7d3f9
KR		 2617 return -1;
2618 }
2619
113be15a 2620 ret = ssl_write_internal(s, buf, (size_t)num, 0, &written);
4ee7d3f9
KR		 2621
2622 /*
2623 * The cast is safe here because ret should be <= INT_MAX because num is
2624 * <= INT_MAX
2625 */
2626 if (ret > 0)
2627 ret = (int)written;
2628
2629 return ret;
2630}
2631
2632int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
2633{
113be15a
HL		 2634 return SSL_write_ex2(s, buf, num, 0, written);
2635}
2636
2637int SSL_write_ex2(SSL *s, const void *buf, size_t num, uint64_t flags,
2638 size_t *written)
2639{
2640 int ret = ssl_write_internal(s, buf, num, flags, written);
4ee7d3f9
KR		 2641
2642 if (ret < 0)
2643 ret = 0;
2644 return ret;
2645}
2646
0665b4ed 2647int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
49e7fe12 2648{
a0cb628b 2649 int ret, early_data_state;
2a8db717 2650 size_t writtmp;
f7414b08 2651 uint32_t partialwrite;
38b051a1
TM		 2652 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2653
44cb36d0 2654 /* TODO(QUIC 0RTT): This will need special handling for QUIC */
38b051a1
TM		 2655 if (sc == NULL)
2656 return 0;
49e7fe12 2657
38b051a1 2658 switch (sc->early_data_state) {
49e7fe12 2659 case SSL_EARLY_DATA_NONE:
38b051a1 2660 if (sc->server
09f28874 2661 || !SSL_in_before(s)
38b051a1
TM		 2662 || ((sc->session == NULL || sc->session->ext.max_early_data == 0)
2663 && (sc->psk_use_session_cb == NULL))) {
6849b73c 2664 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
49e7fe12
MC		 2665 return 0;
2666 }
2667 /* fall through */
2668
2669 case SSL_EARLY_DATA_CONNECT_RETRY:
38b051a1 2670 sc->early_data_state = SSL_EARLY_DATA_CONNECTING;
49e7fe12
MC		 2671 ret = SSL_connect(s);
2672 if (ret <= 0) {
2673 /* NBIO or error */
38b051a1 2674 sc->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
49e7fe12
MC		 2675 return 0;
2676 }
2677 /* fall through */
2678
2679 case SSL_EARLY_DATA_WRITE_RETRY:
38b051a1 2680 sc->early_data_state = SSL_EARLY_DATA_WRITING;
f7414b08
MC		 2681 /*
2682 * We disable partial write for early data because we don't keep track
2683 * of how many bytes we've written between the SSL_write_ex() call and
2684 * the flush if the flush needs to be retried)
2685 */
38b051a1
TM		 2686 partialwrite = sc->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
2687 sc->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
2a8db717 2688 ret = SSL_write_ex(s, buf, num, &writtmp);
38b051a1 2689 sc->mode |= partialwrite;
2a8db717 2690 if (!ret) {
38b051a1 2691 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2a8db717
MC		 2692 return ret;
2693 }
38b051a1 2694 sc->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
2a8db717
MC		 2695 /* fall through */
2696
2697 case SSL_EARLY_DATA_WRITE_FLUSH:
2698 /* The buffering BIO is still in place so we need to flush it */
38b051a1 2699 if (statem_flush(sc) != 1)
2a8db717 2700 return 0;
2a8db717 2701 *written = num;
38b051a1 2702 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2a8db717 2703 return 1;
49e7fe12 2704
116d0da5 2705 case SSL_EARLY_DATA_FINISHED_READING:
a0cb628b 2706 case SSL_EARLY_DATA_READ_RETRY:
38b051a1 2707 early_data_state = sc->early_data_state;
09f28874 2708 /* We are a server writing to an unauthenticated client */
38b051a1 2709 sc->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
09f28874 2710 ret = SSL_write_ex(s, buf, num, written);
5fe37157
MC		 2711 /* The buffering BIO is still in place */
2712 if (ret)
38b051a1
TM		 2713 (void)BIO_flush(sc->wbio);
2714 sc->early_data_state = early_data_state;
09f28874
MC		 2715 return ret;
2716
49e7fe12 2717 default:
6849b73c 2718 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
49e7fe12
MC		 2719 return 0;
2720 }
2721}
2722
4f43d0e7 2723int SSL_shutdown(SSL *s)
0f113f3e
MC		 2724{
2725 /*
2726 * Note that this function behaves differently from what one might
2727 * expect. Return values are 0 for no success (yet), 1 for success; but
2728 * calling it once is usually not enough, even if blocking I/O is used
2729 * (see ssl3_shutdown).
2730 */
38b051a1 2731 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
e8043229 2732
22b1a96f
HL		 2733#ifndef OPENSSL_NO_QUIC
2734 if (IS_QUIC(s))
6d495cc4 2735 return ossl_quic_conn_shutdown(s, 0, NULL, 0);
e8043229 2736#endif
0f113f3e 2737
38b051a1
TM		 2738 if (sc == NULL)
2739 return -1;
2740
2741 if (sc->handshake_func == NULL) {
6849b73c 2742 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
0f113f3e
MC		 2743 return -1;
2744 }
2745
64f9f406 2746 if (!SSL_in_init(s)) {
38b051a1 2747 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
64f9f406 2748 struct ssl_async_args args;
ec447924 2749
09134f18 2750 memset(&args, 0, sizeof(args));
64f9f406
MC		 2751 args.s = s;
2752 args.type = OTHERFUNC;
2753 args.f.func_other = s->method->ssl_shutdown;
ec447924 2754
64f9f406
MC		 2755 return ssl_start_async_job(s, &args, ssl_io_intern);
2756 } else {
2757 return s->method->ssl_shutdown(s);
2758 }
ec447924 2759 } else {
6849b73c 2760 ERR_raise(ERR_LIB_SSL, SSL_R_SHUTDOWN_WHILE_IN_INIT);
64f9f406 2761 return -1;
ec447924 2762 }
0f113f3e 2763}
d02b48c6 2764
4fbfe86a 2765int SSL_key_update(SSL *s, int updatetype)
44c04a2e 2766{
38b051a1
TM		 2767 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2768
2525109f
HL		 2769#ifndef OPENSSL_NO_QUIC
2770 if (IS_QUIC(s))
2771 return ossl_quic_key_update(s, updatetype);
2772#endif
2773
38b051a1
TM		 2774 if (sc == NULL)
2775 return 0;
2776
2777 if (!SSL_CONNECTION_IS_TLS13(sc)) {
6849b73c 2778 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
44c04a2e
MC		 2779 return 0;
2780 }
2781
2782 if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
2783 && updatetype != SSL_KEY_UPDATE_REQUESTED) {
6849b73c 2784 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_KEY_UPDATE_TYPE);
44c04a2e
MC		 2785 return 0;
2786 }
2787
2788 if (!SSL_is_init_finished(s)) {
6849b73c 2789 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
44c04a2e
MC		 2790 return 0;
2791 }
2792
38b051a1 2793 if (RECORD_LAYER_write_pending(&sc->rlayer)) {
3bec4851
MC		 2794 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_WRITE_RETRY);
2795 return 0;
2796 }
2797
38b051a1
TM		 2798 ossl_statem_set_in_init(sc, 1);
2799 sc->key_update = updatetype;
44c04a2e
MC		 2800 return 1;
2801}
2802
3499327b 2803int SSL_get_key_update_type(const SSL *s)
53d1d07d 2804{
38b051a1
TM		 2805 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
2806
2525109f
HL		 2807#ifndef OPENSSL_NO_QUIC
2808 if (IS_QUIC(s))
2809 return ossl_quic_get_key_update_type(s);
2810#endif
2811
38b051a1
TM		 2812 if (sc == NULL)
2813 return 0;
2814
2815 return sc->key_update;
53d1d07d
MC		 2816}
2817
55373bfd
RS		 2818/*
2819 * Can we accept a renegotiation request? If yes, set the flag and
2820 * return 1 if yes. If not, raise error and return 0.
2821 */
38b051a1 2822static int can_renegotiate(const SSL_CONNECTION *sc)
0f113f3e 2823{
38b051a1 2824 if (SSL_CONNECTION_IS_TLS13(sc)) {
6849b73c 2825 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2c0980d2 2826 return 0;
44c04a2e 2827 }
cda6b998 2828
38b051a1 2829 if ((sc->options & SSL_OP_NO_RENEGOTIATION) != 0) {
6849b73c 2830 ERR_raise(ERR_LIB_SSL, SSL_R_NO_RENEGOTIATION);
db0f35dd
TS		 2831 return 0;
2832 }
44959ee4 2833
55373bfd
RS		 2834 return 1;
2835}
2836
2837int SSL_renegotiate(SSL *s)
2838{
38b051a1
TM		 2839 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2840
2841 if (sc == NULL)
55373bfd
RS		 2842 return 0;
2843
38b051a1
TM		 2844 if (!can_renegotiate(sc))
2845 return 0;
2846
2847 sc->renegotiate = 1;
2848 sc->new_session = 1;
26a7d938 2849 return s->method->ssl_renegotiate(s);
0f113f3e 2850}
d02b48c6 2851
44959ee4 2852int SSL_renegotiate_abbreviated(SSL *s)
0f113f3e 2853{
38b051a1
TM		 2854 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2855
2856 if (sc == NULL)
2857 return 0;
2858
2859 if (!can_renegotiate(sc))
2c0980d2 2860 return 0;
c519e89f 2861
38b051a1
TM		 2862 sc->renegotiate = 1;
2863 sc->new_session = 0;
26a7d938 2864 return s->method->ssl_renegotiate(s);
0f113f3e 2865}
44959ee4 2866
3499327b 2867int SSL_renegotiate_pending(const SSL *s)
0f113f3e 2868{
38b051a1
TM		 2869 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2870
2871 if (sc == NULL)
2872 return 0;
2873
0f113f3e
MC		 2874 /*
2875 * becomes true when negotiation is requested; false again once a
2876 * handshake has finished
2877 */
38b051a1 2878 return (sc->renegotiate != 0);
0f113f3e
MC		 2879}
2880
3bfacb5f
BK		 2881int SSL_new_session_ticket(SSL *s)
2882{
38b051a1
TM		 2883 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2884
2885 if (sc == NULL)
2886 return 0;
2887
7c73fefe 2888 /* If we are in init because we're sending tickets, okay to send more. */
38b051a1
TM		 2889 if ((SSL_in_init(s) && sc->ext.extra_tickets_expected == 0)
2890 || SSL_IS_FIRST_HANDSHAKE(sc) || !sc->server
2891 || !SSL_CONNECTION_IS_TLS13(sc))
35774d55 2892 return 0;
38b051a1
TM		 2893 sc->ext.extra_tickets_expected++;
2894 if (!RECORD_LAYER_write_pending(&sc->rlayer) && !SSL_in_init(s))
2895 ossl_statem_set_in_init(sc, 1);
35774d55 2896 return 1;
3bfacb5f
BK		 2897}
2898
0f113f3e 2899long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
c5b882a8
HL		 2900{
2901 return ossl_ctrl_internal(s, cmd, larg, parg, /*no_quic=*/0);
2902}
2903
2904long ossl_ctrl_internal(SSL *s, int cmd, long larg, void *parg, int no_quic)
0f113f3e
MC		 2905{
2906 long l;
8dc82c02 2907 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
38b051a1 2908
8dc82c02 2909 if (sc == NULL)
24844be1 2910 return 0;
2911
c5b882a8
HL		 2912 /*
2913 * Routing of ctrl calls for QUIC is a little counterintuitive:
2914 *
2915 * - Firstly (no_quic=0), we pass the ctrl directly to our QUIC
2916 * implementation in case it wants to handle the ctrl specially.
2917 *
2918 * - If our QUIC implementation does not care about the ctrl, it
2919 * will reenter this function with no_quic=1 and we will try to handle
2920 * it directly using the QCSO SSL object stub (not the handshake layer
2921 * SSL object). This is important for e.g. the version configuration
2922 * ctrls below, which must use s->defltmeth (and not sc->defltmeth).
2923 *
2924 * - If we don't handle a ctrl here specially, then processing is
2925 * redirected to the handshake layer SSL object.
2926 */
2927 if (!no_quic && IS_QUIC(s))
2928 return s->method->ssl_ctrl(s, cmd, larg, parg);
0f113f3e
MC		 2929
2930 switch (cmd) {
2931 case SSL_CTRL_GET_READ_AHEAD:
38b051a1 2932 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
0f113f3e 2933 case SSL_CTRL_SET_READ_AHEAD:
38b051a1
TM		 2934 l = RECORD_LAYER_get_read_ahead(&sc->rlayer);
2935 RECORD_LAYER_set_read_ahead(&sc->rlayer, larg);
26a7d938 2936 return l;
0f113f3e 2937
0f113f3e 2938 case SSL_CTRL_MODE:
4566dae7
MC		 2939 {
2940 OSSL_PARAM options[2], *opts = options;
2941
2942 sc->mode |= larg;
2943
2944 *opts++ = OSSL_PARAM_construct_uint32(OSSL_LIBSSL_RECORD_LAYER_PARAM_MODE,
2945 &sc->mode);
2946 *opts = OSSL_PARAM_construct_end();
2947
2948 /* Ignore return value */
2949 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
2950
2951 return sc->mode;
2952 }
0f113f3e 2953 case SSL_CTRL_CLEAR_MODE:
38b051a1 2954 return (sc->mode &= ~larg);
0f113f3e 2955 case SSL_CTRL_GET_MAX_CERT_LIST:
38b051a1 2956 return (long)sc->max_cert_list;
0f113f3e 2957 case SSL_CTRL_SET_MAX_CERT_LIST:
348240c6
MC		 2958 if (larg < 0)
2959 return 0;
38b051a1
TM		 2960 l = (long)sc->max_cert_list;
2961 sc->max_cert_list = (size_t)larg;
348240c6 2962 return l;
0f113f3e 2963 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
c5b882a8 2964 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
0f113f3e 2965 return 0;
50ec7505 2966#ifndef OPENSSL_NO_KTLS
38b051a1 2967 if (sc->wbio != NULL && BIO_get_ktls_send(sc->wbio))
50ec7505
BP		 2968 return 0;
2969#endif /* OPENSSL_NO_KTLS */
38b051a1
TM		 2970 sc->max_send_fragment = larg;
2971 if (sc->max_send_fragment < sc->split_send_fragment)
2972 sc->split_send_fragment = sc->max_send_fragment;
435d88d7 2973 sc->rlayer.wrlmethod->set_max_frag_len(sc->rlayer.wrl, larg);
d102d9df
MC		 2974 return 1;
2975 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
c5b882a8 2976 if ((size_t)larg > sc->max_send_fragment || larg == 0)
d102d9df 2977 return 0;
38b051a1 2978 sc->split_send_fragment = larg;
0f113f3e 2979 return 1;
d102d9df 2980 case SSL_CTRL_SET_MAX_PIPELINES:
c5b882a8 2981 if (larg < 1 || larg > SSL_MAX_PIPELINES)
d102d9df 2982 return 0;
38b051a1 2983 sc->max_pipelines = larg;
cffafb5f
MC		 2984 if (sc->rlayer.rrlmethod->set_max_pipelines != NULL)
2985 sc->rlayer.rrlmethod->set_max_pipelines(sc->rlayer.rrl, (size_t)larg);
07077415 2986 return 1;
0f113f3e 2987 case SSL_CTRL_GET_RI_SUPPORT:
38b051a1 2988 return sc->s3.send_connection_binding;
dfb39f73 2989 case SSL_CTRL_SET_RETRY_VERIFY:
38b051a1 2990 sc->rwstate = SSL_RETRY_VERIFY;
dfb39f73 2991 return 1;
0f113f3e 2992 case SSL_CTRL_CERT_FLAGS:
38b051a1 2993 return (sc->cert->cert_flags |= larg);
0f113f3e 2994 case SSL_CTRL_CLEAR_CERT_FLAGS:
38b051a1 2995 return (sc->cert->cert_flags &= ~larg);
0f113f3e
MC		 2996
2997 case SSL_CTRL_GET_RAW_CIPHERLIST:
2998 if (parg) {
38b051a1 2999 if (sc->s3.tmp.ciphers_raw == NULL)
0f113f3e 3000 return 0;
38b051a1
TM		 3001 *(unsigned char **)parg = sc->s3.tmp.ciphers_raw;
3002 return (int)sc->s3.tmp.ciphers_rawlen;
e9fa092e
EK		 3003 } else {
3004 return TLS_CIPHER_LEN;
3005 }
c5364614 3006 case SSL_CTRL_GET_EXTMS_SUPPORT:
38b051a1 3007 if (!sc->session || SSL_in_init(s) || ossl_statem_get_in_handshake(sc))
a230b26e 3008 return -1;
38b051a1 3009 if (sc->session->flags & SSL_SESS_FLAG_EXTMS)
c5364614
DSH		 3010 return 1;
3011 else
3012 return 0;
7946ab33 3013 case SSL_CTRL_SET_MIN_PROTO_VERSION:
d6e7ebba 3014 return ssl_check_allowed_versions(larg, sc->max_proto_version)
a7f41885 3015 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
38b051a1 3016 &sc->min_proto_version);
3edabd3c 3017 case SSL_CTRL_GET_MIN_PROTO_VERSION:
38b051a1 3018 return sc->min_proto_version;
7946ab33 3019 case SSL_CTRL_SET_MAX_PROTO_VERSION:
d6e7ebba 3020 return ssl_check_allowed_versions(sc->min_proto_version, larg)
a7f41885 3021 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
38b051a1 3022 &sc->max_proto_version);
3edabd3c 3023 case SSL_CTRL_GET_MAX_PROTO_VERSION:
38b051a1 3024 return sc->max_proto_version;
0f113f3e 3025 default:
c5b882a8
HL		 3026 if (IS_QUIC(s))
3027 return SSL_ctrl((SSL *)sc, cmd, larg, parg);
3028 else
3029 return s->method->ssl_ctrl(s, cmd, larg, parg);
0f113f3e
MC		 3030 }
3031}
3032
3033long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
3034{
63dfde87 3035 return s->method->ssl_callback_ctrl(s, cmd, fp);
0f113f3e 3036}
d3442bc7 3037
3c1d6bbc 3038LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
0f113f3e
MC		 3039{
3040 return ctx->sessions;
3041}
3042
acce0557
P		 3043static int ssl_tsan_load(SSL_CTX *ctx, TSAN_QUALIFIER int *stat)
3044{
3045 int res = 0;
3046
3047 if (ssl_tsan_lock(ctx)) {
3048 res = tsan_load(stat);
3049 ssl_tsan_unlock(ctx);
3050 }
3051 return res;
3052}
3053
0f113f3e
MC		 3054long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
3055{
3056 long l;
3057 /* For some cases with ctx == NULL perform syntax checks */
3058 if (ctx == NULL) {
3059 switch (cmd) {
de4d764e 3060 case SSL_CTRL_SET_GROUPS_LIST:
260009d8 3061 return tls1_set_groups_list(ctx, NULL, NULL, parg);
0f113f3e
MC		 3062 case SSL_CTRL_SET_SIGALGS_LIST:
3063 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
3064 return tls1_set_sigalgs_list(NULL, parg, 0);
3065 default:
3066 return 0;
3067 }
3068 }
3069
3070 switch (cmd) {
3071 case SSL_CTRL_GET_READ_AHEAD:
26a7d938 3072 return ctx->read_ahead;
0f113f3e
MC		 3073 case SSL_CTRL_SET_READ_AHEAD:
3074 l = ctx->read_ahead;
3075 ctx->read_ahead = larg;
26a7d938 3076 return l;
0f113f3e
MC		 3077
3078 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
3079 ctx->msg_callback_arg = parg;
3080 return 1;
3081
3082 case SSL_CTRL_GET_MAX_CERT_LIST:
26a7d938 3083 return (long)ctx->max_cert_list;
0f113f3e 3084 case SSL_CTRL_SET_MAX_CERT_LIST:
348240c6
MC		 3085 if (larg < 0)
3086 return 0;
3087 l = (long)ctx->max_cert_list;
3088 ctx->max_cert_list = (size_t)larg;
3089 return l;
0f113f3e
MC		 3090
3091 case SSL_CTRL_SET_SESS_CACHE_SIZE:
348240c6
MC		 3092 if (larg < 0)
3093 return 0;
3094 l = (long)ctx->session_cache_size;
3095 ctx->session_cache_size = (size_t)larg;
3096 return l;
0f113f3e 3097 case SSL_CTRL_GET_SESS_CACHE_SIZE:
26a7d938 3098 return (long)ctx->session_cache_size;
0f113f3e
MC		 3099 case SSL_CTRL_SET_SESS_CACHE_MODE:
3100 l = ctx->session_cache_mode;
3101 ctx->session_cache_mode = larg;
26a7d938 3102 return l;
0f113f3e 3103 case SSL_CTRL_GET_SESS_CACHE_MODE:
26a7d938 3104 return ctx->session_cache_mode;
0f113f3e
MC		 3105
3106 case SSL_CTRL_SESS_NUMBER:
26a7d938 3107 return lh_SSL_SESSION_num_items(ctx->sessions);
0f113f3e 3108 case SSL_CTRL_SESS_CONNECT:
acce0557 3109 return ssl_tsan_load(ctx, &ctx->stats.sess_connect);
0f113f3e 3110 case SSL_CTRL_SESS_CONNECT_GOOD:
acce0557 3111 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_good);
0f113f3e 3112 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
acce0557 3113 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_renegotiate);
0f113f3e 3114 case SSL_CTRL_SESS_ACCEPT:
acce0557 3115 return ssl_tsan_load(ctx, &ctx->stats.sess_accept);
0f113f3e 3116 case SSL_CTRL_SESS_ACCEPT_GOOD:
acce0557 3117 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_good);
0f113f3e 3118 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
acce0557 3119 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_renegotiate);
0f113f3e 3120 case SSL_CTRL_SESS_HIT:
acce0557 3121 return ssl_tsan_load(ctx, &ctx->stats.sess_hit);
0f113f3e 3122 case SSL_CTRL_SESS_CB_HIT:
acce0557 3123 return ssl_tsan_load(ctx, &ctx->stats.sess_cb_hit);
0f113f3e 3124 case SSL_CTRL_SESS_MISSES:
acce0557 3125 return ssl_tsan_load(ctx, &ctx->stats.sess_miss);
0f113f3e 3126 case SSL_CTRL_SESS_TIMEOUTS:
acce0557 3127 return ssl_tsan_load(ctx, &ctx->stats.sess_timeout);
0f113f3e 3128 case SSL_CTRL_SESS_CACHE_FULL:
acce0557 3129 return ssl_tsan_load(ctx, &ctx->stats.sess_cache_full);
0f113f3e
MC		 3130 case SSL_CTRL_MODE:
3131 return (ctx->mode |= larg);
3132 case SSL_CTRL_CLEAR_MODE:
3133 return (ctx->mode &= ~larg);
3134 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
3135 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
3136 return 0;
3137 ctx->max_send_fragment = larg;
d102d9df 3138 if (ctx->max_send_fragment < ctx->split_send_fragment)
bfb155c1 3139 ctx->split_send_fragment = ctx->max_send_fragment;
0f113f3e 3140 return 1;
d102d9df 3141 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
7ee8627f 3142 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
d102d9df
MC		 3143 return 0;
3144 ctx->split_send_fragment = larg;
3145 return 1;
3146 case SSL_CTRL_SET_MAX_PIPELINES:
3147 if (larg < 1 || larg > SSL_MAX_PIPELINES)
3148 return 0;
3149 ctx->max_pipelines = larg;
07077415 3150 return 1;
0f113f3e
MC		 3151 case SSL_CTRL_CERT_FLAGS:
3152 return (ctx->cert->cert_flags |= larg);
3153 case SSL_CTRL_CLEAR_CERT_FLAGS:
3154 return (ctx->cert->cert_flags &= ~larg);
7946ab33 3155 case SSL_CTRL_SET_MIN_PROTO_VERSION:
d6e7ebba 3156 return ssl_check_allowed_versions(larg, ctx->max_proto_version)
c8feba72
BK		 3157 && ssl_set_version_bound(ctx->method->version, (int)larg,
3158 &ctx->min_proto_version);
3edabd3c
CH		 3159 case SSL_CTRL_GET_MIN_PROTO_VERSION:
3160 return ctx->min_proto_version;
7946ab33 3161 case SSL_CTRL_SET_MAX_PROTO_VERSION:
d6e7ebba 3162 return ssl_check_allowed_versions(ctx->min_proto_version, larg)
c8feba72
BK		 3163 && ssl_set_version_bound(ctx->method->version, (int)larg,
3164 &ctx->max_proto_version);
3edabd3c
CH		 3165 case SSL_CTRL_GET_MAX_PROTO_VERSION:
3166 return ctx->max_proto_version;
0f113f3e 3167 default:
26a7d938 3168 return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
0f113f3e
MC		 3169 }
3170}
3171
3172long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
3173{
3174 switch (cmd) {
3175 case SSL_CTRL_SET_MSG_CALLBACK:
3176 ctx->msg_callback = (void (*)
3177 (int write_p, int version, int content_type,
3178 const void *buf, size_t len, SSL *ssl,
3179 void *arg))(fp);
3180 return 1;
3181
3182 default:
26a7d938 3183 return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
0f113f3e
MC		 3184 }
3185}
d3442bc7 3186
ccd86b68 3187int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
0f113f3e 3188{
90d9e49a
DSH		 3189 if (a->id > b->id)
3190 return 1;
3191 if (a->id < b->id)
3192 return -1;
3193 return 0;
0f113f3e
MC		 3194}
3195
3196int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
3197 const SSL_CIPHER *const *bp)
3198{
90d9e49a
DSH		 3199 if ((*ap)->id > (*bp)->id)
3200 return 1;
3201 if ((*ap)->id < (*bp)->id)
3202 return -1;
3203 return 0;
0f113f3e 3204}
d02b48c6 3205
38b051a1
TM		 3206/*
3207 * return a STACK of the ciphers available for the SSL and in order of
3208 * preference
3209 */
0821bcd4 3210STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
0f113f3e 3211{
38b051a1
TM		 3212 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3213
3214 if (sc != NULL) {
3215 if (sc->cipher_list != NULL) {
3216 return sc->cipher_list;
0f113f3e 3217 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
26a7d938 3218 return s->ctx->cipher_list;
0f113f3e
MC		 3219 }
3220 }
26a7d938 3221 return NULL;
0f113f3e
MC		 3222}
3223
831eef2c
NM		 3224STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
3225{
38b051a1
TM		 3226 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3227
3228 if (sc == NULL || !sc->server)
831eef2c 3229 return NULL;
38b051a1 3230 return sc->peer_ciphers;
831eef2c
NM		 3231}
3232
8b8e5bed 3233STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
0f113f3e
MC		 3234{
3235 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
3236 int i;
38b051a1
TM		 3237 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3238
3239 if (sc == NULL)
3240 return NULL;
1d0c08b4 3241
0f113f3e
MC		 3242 ciphers = SSL_get_ciphers(s);
3243 if (!ciphers)
3244 return NULL;
38b051a1 3245 if (!ssl_set_client_disabled(sc))
1d0c08b4 3246 return NULL;
0f113f3e
MC		 3247 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
3248 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
38b051a1 3249 if (!ssl_cipher_disabled(sc, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
0f113f3e
MC		 3250 if (!sk)
3251 sk = sk_SSL_CIPHER_new_null();
3252 if (!sk)
3253 return NULL;
3254 if (!sk_SSL_CIPHER_push(sk, c)) {
3255 sk_SSL_CIPHER_free(sk);
3256 return NULL;
3257 }
3258 }
3259 }
3260 return sk;
3261}
8b8e5bed 3262
4f43d0e7 3263/** return a STACK of the ciphers available for the SSL and in order of
d02b48c6 3264 * algorithm id */
38b051a1 3265STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL_CONNECTION *s)
0f113f3e
MC		 3266{
3267 if (s != NULL) {
38b051a1 3268 if (s->cipher_list_by_id != NULL)
26a7d938 3269 return s->cipher_list_by_id;
38b051a1
TM		 3270 else if (s->ssl.ctx != NULL
3271 && s->ssl.ctx->cipher_list_by_id != NULL)
3272 return s->ssl.ctx->cipher_list_by_id;
0f113f3e 3273 }
26a7d938 3274 return NULL;
0f113f3e 3275}
d02b48c6 3276
4f43d0e7 3277/** The old interface to get the same thing as SSL_get_ciphers() */
0f113f3e
MC		 3278const char *SSL_get_cipher_list(const SSL *s, int n)
3279{
4a640fb6 3280 const SSL_CIPHER *c;
0f113f3e
MC		 3281 STACK_OF(SSL_CIPHER) *sk;
3282
3283 if (s == NULL)
26a7d938 3284 return NULL;
0f113f3e
MC		 3285 sk = SSL_get_ciphers(s);
3286 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
26a7d938 3287 return NULL;
0f113f3e
MC		 3288 c = sk_SSL_CIPHER_value(sk, n);
3289 if (c == NULL)
26a7d938
K		 3290 return NULL;
3291 return c->name;
0f113f3e 3292}
d02b48c6 3293
9d5ac953
KY		 3294/** return a STACK of the ciphers available for the SSL_CTX and in order of
3295 * preference */
3296STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
3297{
3298 if (ctx != NULL)
3299 return ctx->cipher_list;
3300 return NULL;
3301}
3302
3c83c5ba
SR		 3303/*
3304 * Distinguish between ciphers controlled by set_ciphersuite() and
3305 * set_cipher_list() when counting.
3306 */
3307static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
3308{
3309 int i, num = 0;
3310 const SSL_CIPHER *c;
3311
3312 if (sk == NULL)
3313 return 0;
3314 for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
3315 c = sk_SSL_CIPHER_value(sk, i);
3316 if (c->min_tls >= TLS1_3_VERSION)
3317 continue;
3318 num++;
3319 }
3320 return num;
3321}
3322
25f923dd 3323/** specify the ciphers to be used by default by the SSL_CTX */
018e57c7 3324int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
0f113f3e
MC		 3325{
3326 STACK_OF(SSL_CIPHER) *sk;
3327
a68eee67 3328 sk = ssl_create_cipher_list(ctx, ctx->tls13_ciphersuites,
f865b081
MC		 3329 &ctx->cipher_list, &ctx->cipher_list_by_id, str,
3330 ctx->cert);
0f113f3e
MC		 3331 /*
3332 * ssl_create_cipher_list may return an empty stack if it was unable to
3333 * find a cipher matching the given rule string (for example if the rule
3334 * string specifies a cipher which has been disabled). This is not an
3335 * error as far as ssl_create_cipher_list is concerned, and hence
3336 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
3337 */
3338 if (sk == NULL)
3339 return 0;
3c83c5ba 3340 else if (cipher_list_tls12_num(sk) == 0) {
6849b73c 3341 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
0f113f3e
MC		 3342 return 0;
3343 }
3344 return 1;
3345}
d02b48c6 3346
4f43d0e7 3347/** specify the ciphers to be used by the SSL */
0f113f3e
MC		 3348int SSL_set_cipher_list(SSL *s, const char *str)
3349{
3350 STACK_OF(SSL_CIPHER) *sk;
38b051a1 3351 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
0f113f3e 3352
38b051a1
TM		 3353 if (sc == NULL)
3354 return 0;
3355
3356 sk = ssl_create_cipher_list(s->ctx, sc->tls13_ciphersuites,
3357 &sc->cipher_list, &sc->cipher_list_by_id, str,
3358 sc->cert);
0f113f3e
MC		 3359 /* see comment in SSL_CTX_set_cipher_list */
3360 if (sk == NULL)
3361 return 0;
3c83c5ba 3362 else if (cipher_list_tls12_num(sk) == 0) {
6849b73c 3363 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
0f113f3e
MC		 3364 return 0;
3365 }
3366 return 1;
3367}
d02b48c6 3368
a216df59 3369char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
0f113f3e
MC		 3370{
3371 char *p;
a216df59 3372 STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
4a640fb6 3373 const SSL_CIPHER *c;
0f113f3e 3374 int i;
38b051a1
TM		 3375 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3376
3377 if (sc == NULL)
3378 return NULL;
0f113f3e 3379
38b051a1
TM		 3380 if (!sc->server
3381 || sc->peer_ciphers == NULL
a216df59 3382 || size < 2)
26a7d938 3383 return NULL;
0f113f3e
MC		 3384
3385 p = buf;
38b051a1 3386 clntsk = sc->peer_ciphers;
a216df59
MC		 3387 srvrsk = SSL_get_ciphers(s);
3388 if (clntsk == NULL || srvrsk == NULL)
3389 return NULL;
0f113f3e 3390
a216df59 3391 if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
0f113f3e
MC		 3392 return NULL;
3393
a216df59 3394 for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
0f113f3e
MC		 3395 int n;
3396
a216df59
MC		 3397 c = sk_SSL_CIPHER_value(clntsk, i);
3398 if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
3399 continue;
3400
2743594d
SS		 3401 n = OPENSSL_strnlen(c->name, size);
3402 if (n >= size) {
0f113f3e
MC		 3403 if (p != buf)
3404 --p;
3405 *p = '\0';
3406 return buf;
3407 }
2743594d 3408 memcpy(p, c->name, n);
0f113f3e
MC		 3409 p += n;
3410 *(p++) = ':';
a216df59 3411 size -= n + 1;
0f113f3e
MC		 3412 }
3413 p[-1] = '\0';
26a7d938 3414 return buf;
0f113f3e
MC		 3415}
3416
7955c1f1
MC		 3417/**
3418 * Return the requested servername (SNI) value. Note that the behaviour varies
3419 * depending on:
3420 * - whether this is called by the client or the server,
3421 * - if we are before or during/after the handshake,
3422 * - if a resumption or normal handshake is being attempted/has occurred
3423 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
38b051a1 3424 *
7955c1f1 3425 * Note that only the host_name type is defined (RFC 3546).
ed3883d2 3426 */
f1fd4544 3427const char *SSL_get_servername(const SSL *s, const int type)
0f113f3e 3428{
38b051a1
TM		 3429 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3430 int server;
3431
3432 if (sc == NULL)
3433 return NULL;
3434
7955c1f1
MC		 3435 /*
3436 * If we don't know if we are the client or the server yet then we assume
3437 * client.
3438 */
38b051a1
TM		 3439 server = sc->handshake_func == NULL ? 0 : sc->server;
3440
0f113f3e
MC		 3441 if (type != TLSEXT_NAMETYPE_host_name)
3442 return NULL;
a13c20f6 3443
7955c1f1
MC		 3444 if (server) {
3445 /**
3446 * Server side
3447 * In TLSv1.3 on the server SNI is not associated with the session
3448 * but in TLSv1.2 or below it is.
3449 *
3450 * Before the handshake:
3451 * - return NULL
3452 *
3453 * During/after the handshake (TLSv1.2 or below resumption occurred):
3454 * - If a servername was accepted by the server in the original
3455 * handshake then it will return that servername, or NULL otherwise.
3456 *
3457 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3458 * - The function will return the servername requested by the client in
3459 * this handshake or NULL if none was requested.
3460 */
38b051a1
TM		 3461 if (sc->hit && !SSL_CONNECTION_IS_TLS13(sc))
3462 return sc->session->ext.hostname;
7955c1f1
MC		 3463 } else {
3464 /**
3465 * Client side
3466 *
3467 * Before the handshake:
3468 * - If a servername has been set via a call to
3469 * SSL_set_tlsext_host_name() then it will return that servername
3470 * - If one has not been set, but a TLSv1.2 resumption is being
3471 * attempted and the session from the original handshake had a
3472 * servername accepted by the server then it will return that
3473 * servername
3474 * - Otherwise it returns NULL
3475 *
3476 * During/after the handshake (TLSv1.2 or below resumption occurred):
9f7505ab 3477 * - If the session from the original handshake had a servername accepted
7955c1f1
MC		 3478 * by the server then it will return that servername.
3479 * - Otherwise it returns the servername set via
3480 * SSL_set_tlsext_host_name() (or NULL if it was not called).
3481 *
3482 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3483 * - It will return the servername set via SSL_set_tlsext_host_name()
3484 * (or NULL if it was not called).
3485 */
3486 if (SSL_in_before(s)) {
38b051a1
TM		 3487 if (sc->ext.hostname == NULL
3488 && sc->session != NULL
3489 && sc->session->ssl_version != TLS1_3_VERSION)
3490 return sc->session->ext.hostname;
7955c1f1 3491 } else {
38b051a1
TM		 3492 if (!SSL_CONNECTION_IS_TLS13(sc) && sc->hit
3493 && sc->session->ext.hostname != NULL)
3494 return sc->session->ext.hostname;
7955c1f1
MC		 3495 }
3496 }
3497
38b051a1 3498 return sc->ext.hostname;
0f113f3e 3499}
ed3883d2 3500
f1fd4544 3501int SSL_get_servername_type(const SSL *s)
0f113f3e 3502{
7955c1f1 3503 if (SSL_get_servername(s, TLSEXT_NAMETYPE_host_name) != NULL)
0f113f3e
MC		 3504 return TLSEXT_NAMETYPE_host_name;
3505 return -1;
3506}
ee2ffc27 3507
0f113f3e
MC		 3508/*
3509 * SSL_select_next_proto implements the standard protocol selection. It is
ee2ffc27 3510 * expected that this function is called from the callback set by
0f113f3e
MC		 3511 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
3512 * vector of 8-bit, length prefixed byte strings. The length byte itself is
3513 * not included in the length. A byte string of length 0 is invalid. No byte
3514 * string may be truncated. The current, but experimental algorithm for
3515 * selecting the protocol is: 1) If the server doesn't support NPN then this
3516 * is indicated to the callback. In this case, the client application has to
3517 * abort the connection or have a default application level protocol. 2) If
3518 * the server supports NPN, but advertises an empty list then the client
f430ba31 3519 * selects the first protocol in its list, but indicates via the API that this
0f113f3e
MC		 3520 * fallback case was enacted. 3) Otherwise, the client finds the first
3521 * protocol in the server's list that it supports and selects this protocol.
3522 * This is because it's assumed that the server has better information about
3523 * which protocol a client should use. 4) If the client doesn't support any
3524 * of the server's advertised protocols, then this is treated the same as
3525 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
3526 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
ee2ffc27 3527 */
0f113f3e
MC		 3528int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
3529 const unsigned char *server,
3530 unsigned int server_len,
a230b26e 3531 const unsigned char *client, unsigned int client_len)
0f113f3e
MC		 3532{
3533 unsigned int i, j;
3534 const unsigned char *result;
3535 int status = OPENSSL_NPN_UNSUPPORTED;
3536
3537 /*
3538 * For each protocol in server preference order, see if we support it.
3539 */
3540 for (i = 0; i < server_len;) {
3541 for (j = 0; j < client_len;) {
3542 if (server[i] == client[j] &&
3543 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
3544 /* We found a match */
3545 result = &server[i];
3546 status = OPENSSL_NPN_NEGOTIATED;
3547 goto found;
3548 }
3549 j += client[j];
3550 j++;
3551 }
3552 i += server[i];
3553 i++;
3554 }
3555
3556 /* There's no overlap between our protocols and the server's list. */
3557 result = client;
3558 status = OPENSSL_NPN_NO_OVERLAP;
3559
3560 found:
3561 *out = (unsigned char *)result + 1;
3562 *outlen = result[0];
3563 return status;
3564}
ee2ffc27 3565
e481f9b9 3566#ifndef OPENSSL_NO_NEXTPROTONEG
0f113f3e
MC		 3567/*
3568 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
3569 * client's requested protocol for this connection and returns 0. If the
3570 * client didn't request any protocol, then *data is set to NULL. Note that
3571 * the client can request any protocol it chooses. The value returned from
3572 * this function need not be a member of the list of supported protocols
ee2ffc27
BL		 3573 * provided by the callback.
3574 */
0f113f3e
MC		 3575void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
3576 unsigned *len)
3577{
38b051a1
TM		 3578 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3579
3580 if (sc == NULL) {
3581 /* We have no other way to indicate error */
3582 *data = NULL;
3583 *len = 0;
3584 return;
3585 }
3586
3587 *data = sc->ext.npn;
12a765a5 3588 if (*data == NULL) {
0f113f3e
MC		 3589 *len = 0;
3590 } else {
38b051a1 3591 *len = (unsigned int)sc->ext.npn_len;
0f113f3e
MC		 3592 }
3593}
3594
3595/*
aff8c126 3596 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
0f113f3e
MC		 3597 * a TLS server needs a list of supported protocols for Next Protocol
3598 * Negotiation. The returned list must be in wire format. The list is
3599 * returned by setting |out| to point to it and |outlen| to its length. This
3600 * memory will not be modified, but one should assume that the SSL* keeps a
3601 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
3602 * wishes to advertise. Otherwise, no such extension will be included in the
3603 * ServerHello.
3604 */
aff8c126 3605void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
8cbfcc70 3606 SSL_CTX_npn_advertised_cb_func cb,
aff8c126 3607 void *arg)
0f113f3e 3608{
68dbff4c
HL		 3609 if (IS_QUIC_CTX(ctx))
3610 /* NPN not allowed for QUIC */
3611 return;
3612
aff8c126
RS		 3613 ctx->ext.npn_advertised_cb = cb;
3614 ctx->ext.npn_advertised_cb_arg = arg;
0f113f3e
MC		 3615}
3616
3617/*
3618 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
ee2ffc27
BL		 3619 * client needs to select a protocol from the server's provided list. |out|
3620 * must be set to point to the selected protocol (which may be within |in|).
0f113f3e
MC		 3621 * The length of the protocol name must be written into |outlen|. The
3622 * server's advertised protocols are provided in |in| and |inlen|. The
3623 * callback can assume that |in| is syntactically valid. The client must
3624 * select a protocol. It is fatal to the connection if this callback returns
3625 * a value other than SSL_TLSEXT_ERR_OK.
ee2ffc27 3626 */
aff8c126 3627void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
8cbfcc70 3628 SSL_CTX_npn_select_cb_func cb,
aff8c126 3629 void *arg)
0f113f3e 3630{
68dbff4c
HL		 3631 if (IS_QUIC_CTX(ctx))
3632 /* NPN not allowed for QUIC */
3633 return;
3634
aff8c126
RS		 3635 ctx->ext.npn_select_cb = cb;
3636 ctx->ext.npn_select_cb_arg = arg;
0f113f3e 3637}
e481f9b9 3638#endif
a398f821 3639
feba11cf
TS		 3640static int alpn_value_ok(const unsigned char *protos, unsigned int protos_len)
3641{
3642 unsigned int idx;
3643
3644 if (protos_len < 2 || protos == NULL)
3645 return 0;
3646
3647 for (idx = 0; idx < protos_len; idx += protos[idx] + 1) {
3648 if (protos[idx] == 0)
3649 return 0;
3650 }
3651 return idx == protos_len;
3652}
0f113f3e
MC		 3653/*
3654 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
6f017a8f 3655 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
0f113f3e
MC		 3656 * length-prefixed strings). Returns 0 on success.
3657 */
3658int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
817cd0d5 3659 unsigned int protos_len)
0f113f3e 3660{
feba11cf
TS		 3661 unsigned char *alpn;
3662
3663 if (protos_len == 0 || protos == NULL) {
3664 OPENSSL_free(ctx->ext.alpn);
3665 ctx->ext.alpn = NULL;
39a14059 3666 ctx->ext.alpn_len = 0;
feba11cf
TS		 3667 return 0;
3668 }
3669 /* Not valid per RFC */
3670 if (!alpn_value_ok(protos, protos_len))
3671 return 1;
3672
3673 alpn = OPENSSL_memdup(protos, protos_len);
e077455e 3674 if (alpn == NULL)
0f113f3e 3675 return 1;
feba11cf
TS		 3676 OPENSSL_free(ctx->ext.alpn);
3677 ctx->ext.alpn = alpn;
aff8c126 3678 ctx->ext.alpn_len = protos_len;
0f113f3e
MC		 3679
3680 return 0;
3681}
3682
3683/*
3684 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
6f017a8f 3685 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
0f113f3e
MC		 3686 * length-prefixed strings). Returns 0 on success.
3687 */
3688int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
817cd0d5 3689 unsigned int protos_len)
0f113f3e 3690{
feba11cf 3691 unsigned char *alpn;
38b051a1
TM		 3692 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
3693
3694 if (sc == NULL)
3695 return 1;
feba11cf
TS		 3696
3697 if (protos_len == 0 || protos == NULL) {
38b051a1
TM		 3698 OPENSSL_free(sc->ext.alpn);
3699 sc->ext.alpn = NULL;
3700 sc->ext.alpn_len = 0;
feba11cf
TS		 3701 return 0;
3702 }
3703 /* Not valid per RFC */
3704 if (!alpn_value_ok(protos, protos_len))
3705 return 1;
3706
3707 alpn = OPENSSL_memdup(protos, protos_len);
e077455e 3708 if (alpn == NULL)
0f113f3e 3709 return 1;
38b051a1
TM		 3710 OPENSSL_free(sc->ext.alpn);
3711 sc->ext.alpn = alpn;
3712 sc->ext.alpn_len = protos_len;
0f113f3e
MC		 3713
3714 return 0;
3715}
3716
3717/*
3718 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3719 * called during ClientHello processing in order to select an ALPN protocol
3720 * from the client's list of offered protocols.
3721 */
3722void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
8cbfcc70
RS		 3723 SSL_CTX_alpn_select_cb_func cb,
3724 void *arg)
0f113f3e 3725{
aff8c126
RS		 3726 ctx->ext.alpn_select_cb = cb;
3727 ctx->ext.alpn_select_cb_arg = arg;
0f113f3e
MC		 3728}
3729
3730/*
69687aa8
F		 3731 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3732 * On return it sets |*data| to point to |*len| bytes of protocol name
0f113f3e
MC		 3733 * (not including the leading length-prefix byte). If the server didn't
3734 * respond with a negotiated protocol then |*len| will be zero.
3735 */
6f017a8f 3736void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
817cd0d5 3737 unsigned int *len)
0f113f3e 3738{
38b051a1
TM		 3739 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
3740
3741 if (sc == NULL) {
3742 /* We have no other way to indicate error */
3743 *data = NULL;
3744 *len = 0;
3745 return;
3746 }
3747
3748 *data = sc->s3.alpn_selected;
0f113f3e
MC		 3749 if (*data == NULL)
3750 *len = 0;
3751 else
38b051a1 3752 *len = (unsigned int)sc->s3.alpn_selected_len;
0f113f3e
MC		 3753}
3754
74b4b494 3755int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
0f113f3e 3756 const char *label, size_t llen,
23cec1f4 3757 const unsigned char *context, size_t contextlen,
0f113f3e
MC		 3758 int use_context)
3759{
38b051a1
TM		 3760 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3761
3762 if (sc == NULL)
3763 return -1;
3764
3765 if (sc->session == NULL
3766 || (sc->version < TLS1_VERSION && sc->version != DTLS1_BAD_VER))
0f113f3e 3767 return -1;
e0af0405 3768
38b051a1 3769 return s->method->ssl3_enc->export_keying_material(sc, out, olen, label,
23cec1f4
MC		 3770 llen, context,
3771 contextlen, use_context);
0f113f3e 3772}
e0af0405 3773
b38ede80
TT		 3774int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
3775 const char *label, size_t llen,
3776 const unsigned char *context,
3777 size_t contextlen)
3778{
38b051a1
TM		 3779 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3780
3781 if (sc == NULL)
3782 return -1;
3783
3784 if (sc->version != TLS1_3_VERSION)
b38ede80
TT		 3785 return 0;
3786
38b051a1 3787 return tls13_export_keying_material_early(sc, out, olen, label, llen,
b38ede80
TT		 3788 context, contextlen);
3789}
3790
3c1d6bbc 3791static unsigned long ssl_session_hash(const SSL_SESSION *a)
0f113f3e 3792{
bd5d27c1 3793 const unsigned char *session_id = a->session_id;
0f113f3e 3794 unsigned long l;
bd5d27c1
DB		 3795 unsigned char tmp_storage[4];
3796
3797 if (a->session_id_length < sizeof(tmp_storage)) {
3798 memset(tmp_storage, 0, sizeof(tmp_storage));
3799 memcpy(tmp_storage, a->session_id, a->session_id_length);
3800 session_id = tmp_storage;
3801 }
0f113f3e
MC		 3802
3803 l = (unsigned long)
bd5d27c1
DB		 3804 ((unsigned long)session_id[0]) |
3805 ((unsigned long)session_id[1] << 8L) |
3806 ((unsigned long)session_id[2] << 16L) |
3807 ((unsigned long)session_id[3] << 24L);
26a7d938 3808 return l;
0f113f3e
MC		 3809}
3810
3811/*
3812 * NB: If this function (or indeed the hash function which uses a sort of
dc644fe2 3813 * coarser function than this one) is changed, ensure
0f113f3e
MC		 3814 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3815 * being able to construct an SSL_SESSION that will collide with any existing
3816 * session with a matching session ID.
3817 */
3818static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
3819{
3820 if (a->ssl_version != b->ssl_version)
208fb891 3821 return 1;
0f113f3e 3822 if (a->session_id_length != b->session_id_length)
208fb891 3823 return 1;
26a7d938 3824 return memcmp(a->session_id, b->session_id, a->session_id_length);
0f113f3e
MC		 3825}
3826
3827/*
3828 * These wrapper functions should remain rather than redeclaring
d0fa136c 3829 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
0f113f3e
MC		 3830 * variable. The reason is that the functions aren't static, they're exposed
3831 * via ssl.h.
3832 */
97b17195 3833
b4250010 3834SSL_CTX *SSL_CTX_new_ex(OSSL_LIB_CTX *libctx, const char *propq,
d8652be0 3835 const SSL_METHOD *meth)
0f113f3e
MC		 3836{
3837 SSL_CTX *ret = NULL;
b67cb09f
TS		 3838#ifndef OPENSSL_NO_COMP_ALG
3839 int i;
3840#endif
0f113f3e
MC		 3841
3842 if (meth == NULL) {
6849b73c 3843 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_METHOD_PASSED);
26a7d938 3844 return NULL;
0f113f3e
MC		 3845 }
3846
0fc32b07
MC		 3847 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
3848 return NULL;
7fa792d1 3849
97beb77f 3850 /* Doing this for the run once effect */
0f113f3e 3851 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
6849b73c 3852 ERR_raise(ERR_LIB_SSL, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
0f113f3e
MC		 3853 goto err;
3854 }
43a07d6d 3855
b51bce94 3856 ret = OPENSSL_zalloc(sizeof(*ret));
0f113f3e 3857 if (ret == NULL)
97beb77f 3858 return NULL;
0f113f3e 3859
045a8930 3860 /* Init the reference counting before any call to SSL_CTX_free */
97beb77f
P		 3861 if (!CRYPTO_NEW_REF(&ret->references, 1)) {
3862 OPENSSL_free(ret);
3863 return NULL;
3864 }
43a07d6d 3865
045a8930
F		 3866 ret->lock = CRYPTO_THREAD_lock_new();
3867 if (ret->lock == NULL) {
e077455e
RL		 3868 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3869 goto err;
045a8930
F		 3870 }
3871
acce0557
P		 3872#ifdef TSAN_REQUIRES_LOCKING
3873 ret->tsan_lock = CRYPTO_THREAD_lock_new();
3874 if (ret->tsan_lock == NULL) {
e077455e 3875 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
acce0557
P		 3876 goto err;
3877 }
3878#endif
3879
ba18627e
MC		 3880 ret->libctx = libctx;
3881 if (propq != NULL) {
3882 ret->propq = OPENSSL_strdup(propq);
3883 if (ret->propq == NULL)
3884 goto err;
3885 }
3886
0f113f3e 3887 ret->method = meth;
7946ab33
KR		 3888 ret->min_proto_version = 0;
3889 ret->max_proto_version = 0;
693cf80c 3890 ret->mode = SSL_MODE_AUTO_RETRY;
0f113f3e
MC		 3891 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
3892 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
64b25758 3893 /* We take the system default. */
0f113f3e 3894 ret->session_timeout = meth->get_timeout();
0f113f3e 3895 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
0f113f3e 3896 ret->verify_mode = SSL_VERIFY_NONE;
0f113f3e 3897
62d0577e 3898 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
e077455e
RL		 3899 if (ret->sessions == NULL) {
3900 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
0f113f3e 3901 goto err;
e077455e 3902 }
0f113f3e 3903 ret->cert_store = X509_STORE_new();
e077455e
RL		 3904 if (ret->cert_store == NULL) {
3905 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
0f113f3e 3906 goto err;
e077455e 3907 }
ed29e82a 3908#ifndef OPENSSL_NO_CT
d8652be0 3909 ret->ctlog_store = CTLOG_STORE_new_ex(libctx, propq);
e077455e
RL		 3910 if (ret->ctlog_store == NULL) {
3911 ERR_raise(ERR_LIB_SSL, ERR_R_CT_LIB);
ed29e82a 3912 goto err;
e077455e 3913 }
ed29e82a 3914#endif
f865b081 3915
c8f6c28a 3916 /* initialize cipher/digest methods table */
ee58915c
MB		 3917 if (!ssl_load_ciphers(ret)) {
3918 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
e077455e 3919 goto err;
ee58915c
MB		 3920 }
3921
3922 if (!ssl_load_groups(ret)) {
3923 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3924 goto err;
3925 }
3926
3927 /* load provider sigalgs */
3928 if (!ssl_load_sigalgs(ret)) {
3929 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
e077455e 3930 goto err;
ee58915c 3931 }
c8f6c28a 3932
ee58915c
MB		 3933 /* initialise sig algs */
3934 if (!ssl_setup_sigalgs(ret)) {
3935 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
e077455e 3936 goto err;
ee58915c 3937 }
9d2d857f 3938
e077455e
RL		 3939 if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites())) {
3940 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
f865b081 3941 goto err;
e077455e 3942 }
f865b081 3943
ee58915c
MB		 3944 if ((ret->cert = ssl_cert_new(SSL_PKEY_NUM + ret->sigalg_list_len)) == NULL) {
3945 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3946 goto err;
3947 }
3948
a68eee67 3949 if (!ssl_create_cipher_list(ret,
f865b081 3950 ret->tls13_ciphersuites,
a230b26e 3951 &ret->cipher_list, &ret->cipher_list_by_id,
5d120511 3952 OSSL_default_cipher_list(), ret->cert)
a230b26e 3953 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
6849b73c 3954 ERR_raise(ERR_LIB_SSL, SSL_R_LIBRARY_HAS_NO_CIPHERS);
e077455e 3955 goto err;
0f113f3e
MC		 3956 }
3957
3958 ret->param = X509_VERIFY_PARAM_new();
e077455e
RL		 3959 if (ret->param == NULL) {
3960 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
0f113f3e 3961 goto err;
e077455e 3962 }
0f113f3e 3963
c8f6c28a
MC		 3964 /*
3965 * If these aren't available from the provider we'll get NULL returns.
3966 * That's fine but will cause errors later if SSLv3 is negotiated
3967 */
3968 ret->md5 = ssl_evp_md_fetch(libctx, NID_md5, propq);
3969 ret->sha1 = ssl_evp_md_fetch(libctx, NID_sha1, propq);
0f113f3e 3970
e077455e
RL		 3971 if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL) {
3972 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
0f113f3e 3973 goto err;
e077455e 3974 }
0f113f3e 3975
e077455e
RL		 3976 if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL) {
3977 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
98732979 3978 goto err;
e077455e 3979 }
98732979 3980
e077455e
RL		 3981 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) {
3982 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
25a807bc 3983 goto err;
e077455e 3984 }
0f113f3e 3985
4bfb96f2
TS		 3986 if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
3987 goto err;
3988
0f113f3e
MC		 3989 /* No compression for DTLS */
3990 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
3991 ret->comp_methods = SSL_COMP_get_compression_methods();
3992
3993 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
d102d9df 3994 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
566dda07 3995
4e2e1ec9 3996 /* Setup RFC5077 ticket keys */
8f21260b 3997 if ((RAND_bytes_ex(libctx, ret->ext.tick_key_name,
0f8815aa 3998 sizeof(ret->ext.tick_key_name), 0) <= 0)
8f21260b 3999 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_hmac_key,
0f8815aa 4000 sizeof(ret->ext.secure->tick_hmac_key), 0) <= 0)
8f21260b 4001 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_aes_key,
0f8815aa 4002 sizeof(ret->ext.secure->tick_aes_key), 0) <= 0))
0f113f3e 4003 ret->options |= SSL_OP_NO_TICKET;
6434abbf 4004
8f21260b 4005 if (RAND_priv_bytes_ex(libctx, ret->ext.cookie_hmac_key,
e077455e
RL		 4006 sizeof(ret->ext.cookie_hmac_key), 0) <= 0) {
4007 ERR_raise(ERR_LIB_SSL, ERR_R_RAND_LIB);
43054d3d 4008 goto err;
e077455e 4009 }
43054d3d 4010
edc032b5 4011#ifndef OPENSSL_NO_SRP
e077455e
RL		 4012 if (!ssl_ctx_srp_ctx_init_intern(ret)) {
4013 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
69f68237 4014 goto err;
e077455e 4015 }
edc032b5 4016#endif
4db9677b 4017#ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 4018# ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
4019# define eng_strx(x) #x
4020# define eng_str(x) eng_strx(x)
4021 /* Use specific client engine automatically... ignore errors */
4022 {
4023 ENGINE *eng;
4024 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
4025 if (!eng) {
4026 ERR_clear_error();
4027 ENGINE_load_builtin_engines();
4028 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
4029 }
4030 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
4031 ERR_clear_error();
4032 }
4033# endif
b67cb09f
TS		 4034#endif
4035
4036#ifndef OPENSSL_NO_COMP_ALG
4037 /*
4038 * Set the default order: brotli, zlib, zstd
4039 * Including only those enabled algorithms
4040 */
4041 memset(ret->cert_comp_prefs, 0, sizeof(ret->cert_comp_prefs));
4042 i = 0;
4043 if (ossl_comp_has_alg(TLSEXT_comp_cert_brotli))
4044 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_brotli;
4045 if (ossl_comp_has_alg(TLSEXT_comp_cert_zlib))
4046 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zlib;
4047 if (ossl_comp_has_alg(TLSEXT_comp_cert_zstd))
4048 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zstd;
0f113f3e 4049#endif
dc5744cb
EK		 4050 /*
4051 * Disable compression by default to prevent CRIME. Applications can
4052 * re-enable compression by configuring
4053 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
a5816a5a
MC		 4054 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
4055 * middlebox compatibility by default. This may be disabled by default in
4056 * a later OpenSSL version.
dc5744cb 4057 */
a5816a5a 4058 ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
0f113f3e 4059
aff8c126 4060 ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
ba261f71 4061
bfa9a9af 4062 /*
c39e4048
BK		 4063 * We cannot usefully set a default max_early_data here (which gets
4064 * propagated in SSL_new(), for the following reason: setting the
4065 * SSL field causes tls_construct_stoc_early_data() to tell the
4066 * client that early data will be accepted when constructing a TLS 1.3
4067 * session ticket, and the client will accordingly send us early data
4068 * when using that ticket (if the client has early data to send).
4069 * However, in order for the early data to actually be consumed by
4070 * the application, the application must also have calls to
4071 * SSL_read_early_data(); otherwise we'll just skip past the early data
4072 * and ignore it. So, since the application must add calls to
4073 * SSL_read_early_data(), we also require them to add
4074 * calls to SSL_CTX_set_max_early_data() in order to use early data,
4075 * eliminating the bandwidth-wasting early data in the case described
4076 * above.
bfa9a9af 4077 */
c39e4048 4078 ret->max_early_data = 0;
bfa9a9af 4079
4e8548e8
MC		 4080 /*
4081 * Default recv_max_early_data is a fully loaded single record. Could be
4082 * split across multiple records in practice. We set this differently to
4083 * max_early_data so that, in the default case, we do not advertise any
4084 * support for early_data, but if a client were to send us some (e.g.
4085 * because of an old, stale ticket) then we will tolerate it and skip over
4086 * it.
4087 */
4088 ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
4089
36ff232c
MC		 4090 /* By default we send two session tickets automatically in TLSv1.3 */
4091 ret->num_tickets = 2;
9d0a8bb7 4092
8a5ed9dc
TM		 4093 ssl_ctx_system_config(ret);
4094
16203f7b 4095 return ret;
0f113f3e 4096 err:
e0e920b1 4097 SSL_CTX_free(ret);
16203f7b 4098 return NULL;
0f113f3e 4099}
d02b48c6 4100
ba18627e
MC		 4101SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
4102{
d8652be0 4103 return SSL_CTX_new_ex(NULL, NULL, meth);
ba18627e
MC		 4104}
4105
c5ebfcab 4106int SSL_CTX_up_ref(SSL_CTX *ctx)
a18a31e4 4107{
16203f7b 4108 int i;
c5ebfcab 4109
43a07d6d 4110 if (CRYPTO_UP_REF(&ctx->references, &i) <= 0)
c5ebfcab
F		 4111 return 0;
4112
4113 REF_PRINT_COUNT("SSL_CTX", ctx);
4114 REF_ASSERT_ISNT(i < 2);
4115 return ((i > 1) ? 1 : 0);
a18a31e4
MC		 4116}
4117
4f43d0e7 4118void SSL_CTX_free(SSL_CTX *a)
0f113f3e
MC		 4119{
4120 int i;
9d2d857f 4121 size_t j;
d02b48c6 4122
0f113f3e
MC		 4123 if (a == NULL)
4124 return;
d02b48c6 4125
43a07d6d 4126 CRYPTO_DOWN_REF(&a->references, &i);
f3f1cf84 4127 REF_PRINT_COUNT("SSL_CTX", a);
0f113f3e
MC		 4128 if (i > 0)
4129 return;
f3f1cf84 4130 REF_ASSERT_ISNT(i < 0);
0f113f3e 4131
222561fe 4132 X509_VERIFY_PARAM_free(a->param);
919ba009 4133 dane_ctx_final(&a->dane);
0f113f3e
MC		 4134
4135 /*
4136 * Free internal session cache. However: the remove_cb() may reference
4137 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
4138 * after the sessions were flushed.
4139 * As the ex_data handling routines might also touch the session cache,
4140 * the most secure solution seems to be: empty (flush) the cache, then
4141 * free ex_data, then finally free the cache.
4142 * (See ticket [openssl.org #212].)
4143 */
4144 if (a->sessions != NULL)
4145 SSL_CTX_flush_sessions(a, 0);
4146
4147 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
25aaa98a 4148 lh_SSL_SESSION_free(a->sessions);
222561fe 4149 X509_STORE_free(a->cert_store);
ed29e82a
RP		 4150#ifndef OPENSSL_NO_CT
4151 CTLOG_STORE_free(a->ctlog_store);
4152#endif
25aaa98a
RS		 4153 sk_SSL_CIPHER_free(a->cipher_list);
4154 sk_SSL_CIPHER_free(a->cipher_list_by_id);
f865b081 4155 sk_SSL_CIPHER_free(a->tls13_ciphersuites);
e0e920b1 4156 ssl_cert_free(a->cert);
fa7c2637 4157 sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
98732979 4158 sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
79b2a2f2 4159 OSSL_STACK_OF_X509_free(a->extra_certs);
0f113f3e 4160 a->comp_methods = NULL;
e783bae2 4161#ifndef OPENSSL_NO_SRTP
25aaa98a 4162 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
e783bae2 4163#endif
edc032b5 4164#ifndef OPENSSL_NO_SRP
76cb077f 4165 ssl_ctx_srp_ctx_free_intern(a);
edc032b5 4166#endif
bdfe932d 4167#ifndef OPENSSL_NO_ENGINE
301fcb28 4168 tls_engine_finish(a->client_cert_engine);
ddac1974 4169#endif
8671b898 4170
aff8c126 4171 OPENSSL_free(a->ext.ecpointformats);
187753e0 4172 OPENSSL_free(a->ext.supportedgroups);
ddf8f1ce 4173 OPENSSL_free(a->ext.supported_groups_default);
aff8c126 4174 OPENSSL_free(a->ext.alpn);
4bfb96f2 4175 OPENSSL_secure_free(a->ext.secure);
8671b898 4176
c8f6c28a
MC		 4177 ssl_evp_md_free(a->md5);
4178 ssl_evp_md_free(a->sha1);
4179
9d2d857f
MC		 4180 for (j = 0; j < SSL_ENC_NUM_IDX; j++)
4181 ssl_evp_cipher_free(a->ssl_cipher_methods[j]);
4182 for (j = 0; j < SSL_MD_NUM_IDX; j++)
4183 ssl_evp_md_free(a->ssl_digest_methods[j]);
4184 for (j = 0; j < a->group_list_len; j++) {
4185 OPENSSL_free(a->group_list[j].tlsname);
4186 OPENSSL_free(a->group_list[j].realname);
4187 OPENSSL_free(a->group_list[j].algorithm);
4188 }
4189 OPENSSL_free(a->group_list);
ee58915c
MB		 4190 for (j = 0; j < a->sigalg_list_len; j++) {
4191 OPENSSL_free(a->sigalg_list[j].name);
4192 OPENSSL_free(a->sigalg_list[j].sigalg_name);
4193 OPENSSL_free(a->sigalg_list[j].sigalg_oid);
4194 OPENSSL_free(a->sigalg_list[j].sig_name);
4195 OPENSSL_free(a->sigalg_list[j].sig_oid);
4196 OPENSSL_free(a->sigalg_list[j].hash_name);
4197 OPENSSL_free(a->sigalg_list[j].hash_oid);
4198 OPENSSL_free(a->sigalg_list[j].keytype);
4199 OPENSSL_free(a->sigalg_list[j].keytype_oid);
4200 }
4201 OPENSSL_free(a->sigalg_list);
4202 OPENSSL_free(a->ssl_cert_info);
c8f6c28a 4203
263ff2c9 4204 OPENSSL_free(a->sigalg_lookup_cache);
ee58915c 4205 OPENSSL_free(a->tls12_sigalgs);
263ff2c9 4206
3c95ef22
TS		 4207 OPENSSL_free(a->client_cert_type);
4208 OPENSSL_free(a->server_cert_type);
4209
16203f7b 4210 CRYPTO_THREAD_lock_free(a->lock);
43a07d6d 4211 CRYPTO_FREE_REF(&a->references);
acce0557
P		 4212#ifdef TSAN_REQUIRES_LOCKING
4213 CRYPTO_THREAD_lock_free(a->tsan_lock);
4214#endif
16203f7b 4215
ba18627e 4216 OPENSSL_free(a->propq);
fb1a0bb9
HL		 4217#ifndef OPENSSL_NO_QLOG
4218 OPENSSL_free(a->qlog_title);
4219#endif
ba18627e 4220
0f113f3e
MC		 4221 OPENSSL_free(a);
4222}
d02b48c6 4223
3ae76679 4224void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
0f113f3e
MC		 4225{
4226 ctx->default_passwd_callback = cb;
4227}
4228
4229void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
4230{
4231 ctx->default_passwd_callback_userdata = u;
4232}
4233
0c452abc
CH		 4234pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
4235{
4236 return ctx->default_passwd_callback;
4237}
4238
4239void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
4240{
4241 return ctx->default_passwd_callback_userdata;
4242}
4243
a974e64a
MC		 4244void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
4245{
38b051a1
TM		 4246 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4247
4248 if (sc == NULL)
4249 return;
4250
4251 sc->default_passwd_callback = cb;
a974e64a
MC		 4252}
4253
4254void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
4255{
38b051a1
TM		 4256 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4257
4258 if (sc == NULL)
4259 return;
4260
4261 sc->default_passwd_callback_userdata = u;
a974e64a
MC		 4262}
4263
0c452abc
CH		 4264pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
4265{
38b051a1
TM		 4266 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4267
4268 if (sc == NULL)
4269 return NULL;
4270
4271 return sc->default_passwd_callback;
0c452abc
CH		 4272}
4273
4274void *SSL_get_default_passwd_cb_userdata(SSL *s)
4275{
38b051a1
TM		 4276 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4277
4278 if (sc == NULL)
4279 return NULL;
4280
4281 return sc->default_passwd_callback_userdata;
0c452abc
CH		 4282}
4283
0f113f3e
MC		 4284void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
4285 int (*cb) (X509_STORE_CTX *, void *),
4286 void *arg)
4287{
4288 ctx->app_verify_callback = cb;
4289 ctx->app_verify_arg = arg;
4290}
4291
4292void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
4293 int (*cb) (int, X509_STORE_CTX *))
4294{
4295 ctx->verify_mode = mode;
4296 ctx->default_verify_callback = cb;
4297}
4298
4299void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
4300{
4301 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
4302}
4303
a230b26e 4304void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
0f113f3e
MC		 4305{
4306 ssl_cert_set_cert_cb(c->cert, cb, arg);
4307}
4308
4309void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
4310{
38b051a1
TM		 4311 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4312
4313 if (sc == NULL)
4314 return;
4315
4316 ssl_cert_set_cert_cb(sc->cert, cb, arg);
0f113f3e 4317}
18d71588 4318
38b051a1 4319void ssl_set_masks(SSL_CONNECTION *s)
0f113f3e 4320{
6383d316 4321 CERT *c = s->cert;
555cbb32 4322 uint32_t *pvalid = s->s3.tmp.valid_flags;
bc71f910 4323 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
361a1191 4324 unsigned long mask_k, mask_a;
361a1191 4325 int have_ecc_cert, ecdsa_ok;
462f4f4b 4326
0f113f3e
MC		 4327 if (c == NULL)
4328 return;
d02b48c6 4329
13c45372 4330 dh_tmp = (c->dh_tmp != NULL
13c45372 4331 || c->dh_tmp_cb != NULL
13c45372 4332 || c->dh_tmp_auto);
d02b48c6 4333
d0ff28f8 4334 rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
38e8f3cd
DSH		 4335 rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4336 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
6383d316 4337 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
0f113f3e
MC		 4338 mask_k = 0;
4339 mask_a = 0;
0e1dba93 4340
77359d22
RL		 4341 OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
4342 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
0f113f3e 4343
2a9b9654 4344#ifndef OPENSSL_NO_GOST
4020c0b3 4345 if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
5a5530a2 4346 mask_k |= SSL_kGOST | SSL_kGOST18;
e44380a9
DB		 4347 mask_a |= SSL_aGOST12;
4348 }
4020c0b3 4349 if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
5a5530a2 4350 mask_k |= SSL_kGOST | SSL_kGOST18;
e44380a9
DB		 4351 mask_a |= SSL_aGOST12;
4352 }
4020c0b3 4353 if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
0f113f3e
MC		 4354 mask_k |= SSL_kGOST;
4355 mask_a |= SSL_aGOST01;
4356 }
2a9b9654 4357#endif
0f113f3e 4358
361a1191 4359 if (rsa_enc)
0f113f3e 4360 mask_k |= SSL_kRSA;
d02b48c6 4361
0f113f3e
MC		 4362 if (dh_tmp)
4363 mask_k |= SSL_kDHE;
d02b48c6 4364
6aaa29fb
DSH		 4365 /*
4366 * If we only have an RSA-PSS certificate allow RSA authentication
4367 * if TLS 1.2 and peer supports it.
4368 */
4369
4370 if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
4371 && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
38b051a1 4372 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION))
0f113f3e 4373 mask_a |= SSL_aRSA;
d02b48c6 4374
0f113f3e
MC		 4375 if (dsa_sign) {
4376 mask_a |= SSL_aDSS;
0f113f3e 4377 }
d02b48c6 4378
0f113f3e 4379 mask_a |= SSL_aNULL;
d02b48c6 4380
3c95ef22
TS		 4381 /*
4382 * You can do anything with an RPK key, since there's no cert to restrict it
4383 * But we need to check for private keys
4384 */
4385 if (pvalid[SSL_PKEY_RSA] & CERT_PKEY_RPK) {
4386 mask_a |= SSL_aRSA;
4387 mask_k |= SSL_kRSA;
4388 }
4389 if (pvalid[SSL_PKEY_ECC] & CERT_PKEY_RPK)
4390 mask_a |= SSL_aECDSA;
4391 if (TLS1_get_version(&s->ssl) == TLS1_2_VERSION) {
4392 if (pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_RPK)
4393 mask_a |= SSL_aRSA;
4394 if (pvalid[SSL_PKEY_ED25519] & CERT_PKEY_RPK
4395 || pvalid[SSL_PKEY_ED448] & CERT_PKEY_RPK)
4396 mask_a |= SSL_aECDSA;
4397 }
4398
0f113f3e
MC		 4399 /*
4400 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
4401 * depending on the key usage extension.
4402 */
0f113f3e 4403 if (have_ecc_cert) {
a8d8e06b 4404 uint32_t ex_kusage;
4020c0b3 4405 ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
a8d8e06b 4406 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
6383d316 4407 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
0f113f3e 4408 ecdsa_ok = 0;
c7c46256 4409 if (ecdsa_ok)
0f113f3e 4410 mask_a |= SSL_aECDSA;
0f113f3e 4411 }
b2021556
DSH		 4412 /* Allow Ed25519 for TLS 1.2 if peer supports it */
4413 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
4414 && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
38b051a1 4415 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
b2021556 4416 mask_a |= SSL_aECDSA;
0e1d6ecf
MC		 4417
4418 /* Allow Ed448 for TLS 1.2 if peer supports it */
4419 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
4420 && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
38b051a1 4421 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
0e1d6ecf 4422 mask_a |= SSL_aECDSA;
ea262260 4423
fe6ef247 4424 mask_k |= SSL_kECDHE;
ddac1974
NL		 4425
4426#ifndef OPENSSL_NO_PSK
0f113f3e
MC		 4427 mask_k |= SSL_kPSK;
4428 mask_a |= SSL_aPSK;
526f94ad
DSH		 4429 if (mask_k & SSL_kRSA)
4430 mask_k |= SSL_kRSAPSK;
4431 if (mask_k & SSL_kDHE)
4432 mask_k |= SSL_kDHEPSK;
4433 if (mask_k & SSL_kECDHE)
4434 mask_k |= SSL_kECDHEPSK;
ddac1974
NL		 4435#endif
4436
555cbb32
TS		 4437 s->s3.tmp.mask_k = mask_k;
4438 s->s3.tmp.mask_a = mask_a;
0f113f3e 4439}
d02b48c6 4440
38b051a1 4441int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CONNECTION *s)
0f113f3e 4442{
555cbb32 4443 if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
0f113f3e 4444 /* key usage, if present, must allow signing */
ce0c1f2b 4445 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
6849b73c 4446 ERR_raise(ERR_LIB_SSL, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
0f113f3e
MC		 4447 return 0;
4448 }
4449 }
0f113f3e
MC		 4450 return 1; /* all checks are ok */
4451}
ea262260 4452
38b051a1
TM		 4453int ssl_get_server_cert_serverinfo(SSL_CONNECTION *s,
4454 const unsigned char **serverinfo,
0f113f3e
MC		 4455 size_t *serverinfo_length)
4456{
555cbb32 4457 CERT_PKEY *cpk = s->s3.tmp.cert;
0f113f3e
MC		 4458 *serverinfo_length = 0;
4459
a497cf25 4460 if (cpk == NULL || cpk->serverinfo == NULL)
0f113f3e
MC		 4461 return 0;
4462
a497cf25
DSH		 4463 *serverinfo = cpk->serverinfo;
4464 *serverinfo_length = cpk->serverinfo_length;
0f113f3e
MC		 4465 return 1;
4466}
0f113f3e 4467
38b051a1 4468void ssl_update_cache(SSL_CONNECTION *s, int mode)
0f113f3e
MC		 4469{
4470 int i;
4471
4472 /*
4473 * If the session_id_length is 0, we are not supposed to cache it, and it
4474 * would be rather hard to do anyway :-)
4475 */
4476 if (s->session->session_id_length == 0)
4477 return;
4478
d316cdcf
BK		 4479 /*
4480 * If sid_ctx_length is 0 there is no specific application context
4481 * associated with this session, so when we try to resume it and
c4fa1f7f
BK		 4482 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
4483 * indication that this is actually a session for the proper application
4484 * context, and the *handshake* will fail, not just the resumption attempt.
4485 * Do not cache (on the server) these sessions that are not resumable
4486 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
d316cdcf 4487 */
c4fa1f7f 4488 if (s->server && s->session->sid_ctx_length == 0
d316cdcf
BK		 4489 && (s->verify_mode & SSL_VERIFY_PEER) != 0)
4490 return;
4491
0f113f3e 4492 i = s->session_ctx->session_cache_mode;
5d61491c 4493 if ((i & mode) != 0
38b051a1 4494 && (!s->hit || SSL_CONNECTION_IS_TLS13(s))) {
ee94ec2e
MC		 4495 /*
4496 * Add the session to the internal cache. In server side TLSv1.3 we
6cc0b3c2
MC		 4497 * normally don't do this because by default it's a full stateless ticket
4498 * with only a dummy session id so there is no reason to cache it,
4499 * unless:
ee94ec2e
MC		 4500 * - we are doing early_data, in which case we cache so that we can
4501 * detect replays
4502 * - the application has set a remove_session_cb so needs to know about
4503 * session timeout events
6cc0b3c2 4504 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
ee94ec2e
MC		 4505 */
4506 if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
38b051a1 4507 && (!SSL_CONNECTION_IS_TLS13(s)
ee94ec2e 4508 || !s->server
5d263fb7
MC		 4509 || (s->max_early_data > 0
4510 && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
6cc0b3c2
MC		 4511 || s->session_ctx->remove_session_cb != NULL
4512 || (s->options & SSL_OP_NO_TICKET) != 0))
ee94ec2e
MC		 4513 SSL_CTX_add_session(s->session_ctx, s->session);
4514
4515 /*
4516 * Add the session to the external cache. We do this even in server side
4517 * TLSv1.3 without early data because some applications just want to
4518 * know about the creation of a session and aren't doing a full cache.
4519 */
4520 if (s->session_ctx->new_session_cb != NULL) {
4521 SSL_SESSION_up_ref(s->session);
38b051a1
TM		 4522 if (!s->session_ctx->new_session_cb(SSL_CONNECTION_GET_SSL(s),
4523 s->session))
ee94ec2e
MC		 4524 SSL_SESSION_free(s->session);
4525 }
0f113f3e
MC		 4526 }
4527
4528 /* auto flush every 255 connections */
4529 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
9ef9088c 4530 TSAN_QUALIFIER int *stat;
acce0557 4531
1fcb4e4d
BK		 4532 if (mode & SSL_SESS_CACHE_CLIENT)
4533 stat = &s->session_ctx->stats.sess_connect_good;
4534 else
4535 stat = &s->session_ctx->stats.sess_accept_good;
acce0557 4536 if ((ssl_tsan_load(s->session_ctx, stat) & 0xff) == 0xff)
0f113f3e 4537 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
0f113f3e
MC		 4538 }
4539}
d02b48c6 4540
3499327b 4541const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
0f113f3e
MC		 4542{
4543 return ctx->method;
4544}
ba168244 4545
3499327b 4546const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
0f113f3e 4547{
26a7d938 4548 return s->method;
0f113f3e 4549}
d02b48c6 4550
4ebb342f 4551int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
0f113f3e 4552{
0f113f3e 4553 int ret = 1;
38b051a1
TM		 4554 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4555
3ea30e76 4556 /* Not allowed for QUIC */
38b051a1 4557 if (sc == NULL
3ea30e76
HL		 4558 || (s->type != SSL_TYPE_SSL_CONNECTION && s->method != meth)
4559 || (s->type == SSL_TYPE_SSL_CONNECTION && IS_QUIC_METHOD(meth)))
38b051a1 4560 return 0;
0f113f3e
MC		 4561
4562 if (s->method != meth) {
919ba009 4563 const SSL_METHOD *sm = s->method;
38b051a1 4564 int (*hf) (SSL *) = sc->handshake_func;
0f113f3e 4565
919ba009 4566 if (sm->version == meth->version)
0f113f3e
MC		 4567 s->method = meth;
4568 else {
38b051a1 4569 sm->ssl_deinit(s);
0f113f3e 4570 s->method = meth;
38b051a1 4571 ret = s->method->ssl_init(s);
0f113f3e
MC		 4572 }
4573
919ba009 4574 if (hf == sm->ssl_connect)
38b051a1 4575 sc->handshake_func = meth->ssl_connect;
919ba009 4576 else if (hf == sm->ssl_accept)
38b051a1 4577 sc->handshake_func = meth->ssl_accept;
0f113f3e 4578 }
26a7d938 4579 return ret;
0f113f3e
MC		 4580}
4581
4582int SSL_get_error(const SSL *s, int i)
7a2bb210
HL		 4583{
4584 return ossl_ssl_get_error(s, i, /*check_err=*/1);
4585}
4586
4587int ossl_ssl_get_error(const SSL *s, int i, int check_err)
0f113f3e
MC		 4588{
4589 int reason;
4590 unsigned long l;
4591 BIO *bio;
38b051a1 4592 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
0f113f3e
MC		 4593
4594 if (i > 0)
26a7d938 4595 return SSL_ERROR_NONE;
0f113f3e 4596
e30c502a 4597#ifndef OPENSSL_NO_QUIC
6d495cc4
HL		 4598 if (IS_QUIC(s)) {
4599 reason = ossl_quic_get_error(s, i);
e30c502a
HL		 4600 if (reason != SSL_ERROR_NONE)
4601 return reason;
4602 }
4603#endif
4604
38b051a1
TM		 4605 if (sc == NULL)
4606 return SSL_ERROR_SSL;
4607
0f113f3e
MC		 4608 /*
4609 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
4610 * where we do encode the error
4611 */
7a2bb210 4612 if (check_err && (l = ERR_peek_error()) != 0) {
0f113f3e 4613 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
26a7d938 4614 return SSL_ERROR_SYSCALL;
0f113f3e 4615 else
26a7d938 4616 return SSL_ERROR_SSL;
0f113f3e
MC		 4617 }
4618
03bacce8 4619#ifndef OPENSSL_NO_QUIC
6d495cc4 4620 if (!IS_QUIC(s))
03bacce8
HL		 4621#endif
4622 {
4623 if (SSL_want_read(s)) {
4624 bio = SSL_get_rbio(s);
4625 if (BIO_should_read(bio))
4626 return SSL_ERROR_WANT_READ;
4627 else if (BIO_should_write(bio))
4628 /*
4629 * This one doesn't make too much sense ... We never try to
4630 * write to the rbio, and an application program where rbio and
4631 * wbio are separate couldn't even know what it should wait for.
4632 * However if we ever set s->rwstate incorrectly (so that we
4633 * have SSL_want_read(s) instead of SSL_want_write(s)) and rbio
4634 * and wbio *are* the same, this test works around that bug; so
4635 * it might be safer to keep it.
4636 */
4637 return SSL_ERROR_WANT_WRITE;
4638 else if (BIO_should_io_special(bio)) {
4639 reason = BIO_get_retry_reason(bio);
4640 if (reason == BIO_RR_CONNECT)
4641 return SSL_ERROR_WANT_CONNECT;
4642 else if (reason == BIO_RR_ACCEPT)
4643 return SSL_ERROR_WANT_ACCEPT;
4644 else
4645 return SSL_ERROR_SYSCALL; /* unknown */
4646 }
4647 }
4648
4649 if (SSL_want_write(s)) {
2e7dc7cd 4650 /*
03bacce8
HL		 4651 * Access wbio directly - in order to use the buffered bio if
4652 * present
2e7dc7cd 4653 */
03bacce8
HL		 4654 bio = sc->wbio;
4655 if (BIO_should_write(bio))
4656 return SSL_ERROR_WANT_WRITE;
4657 else if (BIO_should_read(bio))
4658 /*
4659 * See above (SSL_want_read(s) with BIO_should_write(bio))
4660 */
4661 return SSL_ERROR_WANT_READ;
4662 else if (BIO_should_io_special(bio)) {
4663 reason = BIO_get_retry_reason(bio);
4664 if (reason == BIO_RR_CONNECT)
4665 return SSL_ERROR_WANT_CONNECT;
4666 else if (reason == BIO_RR_ACCEPT)
4667 return SSL_ERROR_WANT_ACCEPT;
4668 else
4669 return SSL_ERROR_SYSCALL;
4670 }
0f113f3e 4671 }
07bbc92c 4672 }
03bacce8 4673
6b1bb98f 4674 if (SSL_want_x509_lookup(s))
26a7d938 4675 return SSL_ERROR_WANT_X509_LOOKUP;
0c3eb279
DDO		 4676 if (SSL_want_retry_verify(s))
4677 return SSL_ERROR_WANT_RETRY_VERIFY;
6b1bb98f 4678 if (SSL_want_async(s))
8051ab2b 4679 return SSL_ERROR_WANT_ASYNC;
6b1bb98f 4680 if (SSL_want_async_job(s))
8051ab2b 4681 return SSL_ERROR_WANT_ASYNC_JOB;
a9c0d8be
DB		 4682 if (SSL_want_client_hello_cb(s))
4683 return SSL_ERROR_WANT_CLIENT_HELLO_CB;
8051ab2b 4684
38b051a1
TM		 4685 if ((sc->shutdown & SSL_RECEIVED_SHUTDOWN) &&
4686 (sc->s3.warn_alert == SSL_AD_CLOSE_NOTIFY))
26a7d938 4687 return SSL_ERROR_ZERO_RETURN;
8051ab2b 4688
26a7d938 4689 return SSL_ERROR_SYSCALL;
0f113f3e 4690}
d02b48c6 4691
add2f5ca
MC		 4692static int ssl_do_handshake_intern(void *vargs)
4693{
38b051a1
TM		 4694 struct ssl_async_args *args = (struct ssl_async_args *)vargs;
4695 SSL *s = args->s;
4696 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
add2f5ca 4697
38b051a1
TM		 4698 if (sc == NULL)
4699 return -1;
add2f5ca 4700
38b051a1 4701 return sc->handshake_func(s);
add2f5ca
MC		 4702}
4703
4f43d0e7 4704int SSL_do_handshake(SSL *s)
0f113f3e
MC		 4705{
4706 int ret = 1;
38b051a1
TM		 4707 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4708
6d495cc4
HL		 4709#ifndef OPENSSL_NO_QUIC
4710 if (IS_QUIC(s))
4711 return ossl_quic_do_handshake(s);
03bacce8 4712#endif
0f113f3e 4713
38b051a1 4714 if (sc->handshake_func == NULL) {
6849b73c 4715 ERR_raise(ERR_LIB_SSL, SSL_R_CONNECTION_TYPE_NOT_SET);
add2f5ca 4716 return -1;
0f113f3e
MC		 4717 }
4718
38b051a1 4719 ossl_statem_check_finish_init(sc, -1);
49e7fe12 4720
c7f47786 4721 s->method->ssl_renegotiate_check(s, 0);
0f113f3e
MC		 4722
4723 if (SSL_in_init(s) || SSL_in_before(s)) {
38b051a1 4724 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
add2f5ca
MC		 4725 struct ssl_async_args args;
4726
09134f18 4727 memset(&args, 0, sizeof(args));
add2f5ca
MC		 4728 args.s = s;
4729
7fecbf6f 4730 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
add2f5ca 4731 } else {
38b051a1 4732 ret = sc->handshake_func(s);
add2f5ca 4733 }
0f113f3e 4734 }
add2f5ca 4735 return ret;
0f113f3e
MC		 4736}
4737
4f43d0e7 4738void SSL_set_accept_state(SSL *s)
0f113f3e 4739{
03bacce8 4740 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
38b051a1 4741
6d495cc4
HL		 4742#ifndef OPENSSL_NO_QUIC
4743 if (IS_QUIC(s)) {
4744 ossl_quic_set_accept_state(s);
38b051a1 4745 return;
03bacce8
HL		 4746 }
4747#endif
38b051a1
TM		 4748
4749 sc->server = 1;
4750 sc->shutdown = 0;
4751 ossl_statem_clear(sc);
4752 sc->handshake_func = s->method->ssl_accept;
6d814fd6 4753 /* Ignore return value. Its a void public API function */
4a0e4849 4754 RECORD_LAYER_reset(&sc->rlayer);
0f113f3e 4755}
d02b48c6 4756
4f43d0e7 4757void SSL_set_connect_state(SSL *s)
0f113f3e 4758{
03bacce8 4759 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
38b051a1 4760
6d495cc4
HL		 4761#ifndef OPENSSL_NO_QUIC
4762 if (IS_QUIC(s)) {
4763 ossl_quic_set_connect_state(s);
38b051a1 4764 return;
03bacce8
HL		 4765 }
4766#endif
38b051a1
TM		 4767
4768 sc->server = 0;
4769 sc->shutdown = 0;
4770 ossl_statem_clear(sc);
4771 sc->handshake_func = s->method->ssl_connect;
6d814fd6 4772 /* Ignore return value. Its a void public API function */
4a0e4849 4773 RECORD_LAYER_reset(&sc->rlayer);
0f113f3e 4774}
d02b48c6 4775
4f43d0e7 4776int ssl_undefined_function(SSL *s)
0f113f3e 4777{
6849b73c 4778 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
26a7d938 4779 return 0;
0f113f3e 4780}
d02b48c6 4781
41a15c4f 4782int ssl_undefined_void_function(void)
0f113f3e 4783{
6849b73c 4784 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
26a7d938 4785 return 0;
0f113f3e 4786}
41a15c4f 4787
0821bcd4 4788int ssl_undefined_const_function(const SSL *s)
0f113f3e 4789{
26a7d938 4790 return 0;
0f113f3e 4791}
0821bcd4 4792
3eb2aff4 4793const char *ssl_protocol_to_string(int version)
7d650072 4794{
1287dabd 4795 switch (version)
2abacef1
MC		 4796 {
4797 case TLS1_3_VERSION:
582a17d6 4798 return "TLSv1.3";
2abacef1
MC		 4799
4800 case TLS1_2_VERSION:
7d650072 4801 return "TLSv1.2";
2abacef1
MC		 4802
4803 case TLS1_1_VERSION:
7d650072 4804 return "TLSv1.1";
2abacef1
MC		 4805
4806 case TLS1_VERSION:
ee3a6c64 4807 return "TLSv1";
2abacef1
MC		 4808
4809 case SSL3_VERSION:
7d650072 4810 return "SSLv3";
2abacef1
MC		 4811
4812 case DTLS1_BAD_VER:
7d650072 4813 return "DTLSv0.9";
2abacef1
MC		 4814
4815 case DTLS1_VERSION:
7d650072 4816 return "DTLSv1";
2abacef1
MC		 4817
4818 case DTLS1_2_VERSION:
7d650072 4819 return "DTLSv1.2";
2abacef1
MC		 4820
4821 default:
4822 return "unknown";
4823 }
0f113f3e 4824}
d02b48c6 4825
7d650072
KR		 4826const char *SSL_get_version(const SSL *s)
4827{
38b051a1
TM		 4828 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4829
50769b15
MC		 4830#ifndef OPENSSL_NO_QUIC
4831 /* We only support QUICv1 - so if its QUIC its QUICv1 */
f8636c7e 4832 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
50769b15
MC		 4833 return "QUICv1";
4834#endif
4835
38b051a1
TM		 4836 if (sc == NULL)
4837 return NULL;
4838
4839 return ssl_protocol_to_string(sc->version);
7d650072
KR		 4840}
4841
cee0628e
JC		 4842__owur int SSL_get_handshake_rtt(const SSL *s, uint64_t *rtt)
4843{
4844 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4845
4846 if (sc == NULL)
4847 return -1;
4848 if (sc->ts_msg_write.t <= 0 || sc->ts_msg_read.t <= 0)
4849 return 0; /* data not (yet) available */
4850 if (sc->ts_msg_read.t < sc->ts_msg_write.t)
4851 return -1;
4852
4853 *rtt = ossl_time2us(ossl_time_subtract(sc->ts_msg_read, sc->ts_msg_write));
4854 return 1;
4855}
4856
98732979 4857static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
0f113f3e
MC		 4858{
4859 STACK_OF(X509_NAME) *sk;
4860 X509_NAME *xn;
98732979
MC		 4861 int i;
4862
4863 if (src == NULL) {
4864 *dst = NULL;
4865 return 1;
4866 }
4867
4868 if ((sk = sk_X509_NAME_new_null()) == NULL)
4869 return 0;
4870 for (i = 0; i < sk_X509_NAME_num(src); i++) {
4871 xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
4872 if (xn == NULL) {
4873 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4874 return 0;
4875 }
4876 if (sk_X509_NAME_insert(sk, xn, i) == 0) {
4877 X509_NAME_free(xn);
4878 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4879 return 0;
4880 }
4881 }
4882 *dst = sk;
4883
4884 return 1;
4885}
4886
4887SSL *SSL_dup(SSL *s)
4888{
0f113f3e
MC		 4889 SSL *ret;
4890 int i;
44cb36d0 4891 /* TODO(QUIC FUTURE): Add a SSL_METHOD function for duplication */
38b051a1
TM		 4892 SSL_CONNECTION *retsc;
4893 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4894
4895 if (sc == NULL)
4896 return NULL;
0f113f3e 4897
919ba009
VD		 4898 /* If we're not quiescent, just up_ref! */
4899 if (!SSL_in_init(s) || !SSL_in_before(s)) {
43a07d6d 4900 CRYPTO_UP_REF(&s->references, &i);
919ba009
VD		 4901 return s;
4902 }
4903
4904 /*
4905 * Otherwise, copy configuration state, and session if set.
4906 */
0f113f3e 4907 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
26a7d938 4908 return NULL;
38b051a1
TM		 4909 if ((retsc = SSL_CONNECTION_FROM_SSL_ONLY(ret)) == NULL)
4910 goto err;
0f113f3e 4911
38b051a1 4912 if (sc->session != NULL) {
919ba009
VD		 4913 /*
4914 * Arranges to share the same session via up_ref. This "copies"
4915 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4916 */
61986d32 4917 if (!SSL_copy_session_id(ret, s))
17dd65e6 4918 goto err;
0f113f3e
MC		 4919 } else {
4920 /*
4921 * No session has been established yet, so we have to expect that
4922 * s->cert or ret->cert will be changed later -- they should not both
4923 * point to the same object, and thus we can't use
4924 * SSL_copy_session_id.
4925 */
919ba009
VD		 4926 if (!SSL_set_ssl_method(ret, s->method))
4927 goto err;
0f113f3e 4928
38b051a1
TM		 4929 if (sc->cert != NULL) {
4930 ssl_cert_free(retsc->cert);
4931 retsc->cert = ssl_cert_dup(sc->cert);
4932 if (retsc->cert == NULL)
0f113f3e
MC		 4933 goto err;
4934 }
4935
38b051a1
TM		 4936 if (!SSL_set_session_id_context(ret, sc->sid_ctx,
4937 (int)sc->sid_ctx_length))
69f68237 4938 goto err;
0f113f3e
MC		 4939 }
4940
38b051a1 4941 if (!ssl_dane_dup(retsc, sc))
9f6b22b8 4942 goto err;
38b051a1
TM		 4943 retsc->version = sc->version;
4944 retsc->options = sc->options;
4945 retsc->min_proto_version = sc->min_proto_version;
4946 retsc->max_proto_version = sc->max_proto_version;
4947 retsc->mode = sc->mode;
0f113f3e
MC		 4948 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
4949 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
38b051a1
TM		 4950 retsc->msg_callback = sc->msg_callback;
4951 retsc->msg_callback_arg = sc->msg_callback_arg;
0f113f3e
MC		 4952 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
4953 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
38b051a1 4954 retsc->generate_session_id = sc->generate_session_id;
0f113f3e
MC		 4955
4956 SSL_set_info_callback(ret, SSL_get_info_callback(s));
4957
0f113f3e
MC		 4958 /* copy app data, a little dangerous perhaps */
4959 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
4960 goto err;
4961
38b051a1
TM		 4962 retsc->server = sc->server;
4963 if (sc->handshake_func) {
4964 if (sc->server)
919ba009
VD		 4965 SSL_set_accept_state(ret);
4966 else
4967 SSL_set_connect_state(ret);
4968 }
38b051a1
TM		 4969 retsc->shutdown = sc->shutdown;
4970 retsc->hit = sc->hit;
0f113f3e 4971
38b051a1
TM		 4972 retsc->default_passwd_callback = sc->default_passwd_callback;
4973 retsc->default_passwd_callback_userdata = sc->default_passwd_callback_userdata;
a974e64a 4974
38b051a1 4975 X509_VERIFY_PARAM_inherit(retsc->param, sc->param);
0f113f3e
MC		 4976
4977 /* dup the cipher_list and cipher_list_by_id stacks */
38b051a1
TM		 4978 if (sc->cipher_list != NULL) {
4979 if ((retsc->cipher_list = sk_SSL_CIPHER_dup(sc->cipher_list)) == NULL)
0f113f3e
MC		 4980 goto err;
4981 }
38b051a1
TM		 4982 if (sc->cipher_list_by_id != NULL)
4983 if ((retsc->cipher_list_by_id = sk_SSL_CIPHER_dup(sc->cipher_list_by_id))
0f113f3e
MC		 4984 == NULL)
4985 goto err;
4986
4987 /* Dup the client_CA list */
38b051a1
TM		 4988 if (!dup_ca_names(&retsc->ca_names, sc->ca_names)
4989 || !dup_ca_names(&retsc->client_ca_names, sc->client_ca_names))
98732979
MC		 4990 goto err;
4991
66696478 4992 return ret;
0f113f3e 4993
0f113f3e 4994 err:
66696478
RS		 4995 SSL_free(ret);
4996 return NULL;
0f113f3e 4997}
d02b48c6 4998
0821bcd4 4999X509 *SSL_get_certificate(const SSL *s)
0f113f3e 5000{
38b051a1
TM		 5001 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5002
5003 if (sc == NULL)
5004 return NULL;
5005
5006 if (sc->cert != NULL)
5007 return sc->cert->key->x509;
0f113f3e 5008 else
26a7d938 5009 return NULL;
0f113f3e 5010}
d02b48c6 5011
a25f9adc 5012EVP_PKEY *SSL_get_privatekey(const SSL *s)
0f113f3e 5013{
38b051a1
TM		 5014 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5015
5016 if (sc == NULL)
5017 return NULL;
5018
5019 if (sc->cert != NULL)
5020 return sc->cert->key->privatekey;
0f113f3e 5021 else
26a7d938 5022 return NULL;
0f113f3e 5023}
d02b48c6 5024
a25f9adc 5025X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
0f113f3e
MC		 5026{
5027 if (ctx->cert != NULL)
5028 return ctx->cert->key->x509;
5029 else
5030 return NULL;
5031}
a25f9adc
DSH		 5032
5033EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
0f113f3e
MC		 5034{
5035 if (ctx->cert != NULL)
5036 return ctx->cert->key->privatekey;
5037 else
5038 return NULL;
5039}
a25f9adc 5040
babb3798 5041const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
0f113f3e 5042{
38b051a1
TM		 5043 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5044
5045 if (sc == NULL)
5046 return NULL;
5047
5048 if ((sc->session != NULL) && (sc->session->cipher != NULL))
5049 return sc->session->cipher;
26a7d938 5050 return NULL;
0f113f3e
MC		 5051}
5052
0aed6e44
BK		 5053const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
5054{
38b051a1
TM		 5055 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5056
5057 if (sc == NULL)
5058 return NULL;
5059
5060 return sc->s3.tmp.new_cipher;
0aed6e44
BK		 5061}
5062
3499327b 5063const COMP_METHOD *SSL_get_current_compression(const SSL *s)
0f113f3e 5064{
9a555706 5065#ifndef OPENSSL_NO_COMP
38b051a1
TM		 5066 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5067
5068 if (sc == NULL)
5069 return NULL;
5070
1e76110b 5071 return sc->rlayer.wrlmethod->get_compression(sc->rlayer.wrl);
9a555706
RS		 5072#else
5073 return NULL;
5074#endif
0f113f3e 5075}
377dcdba 5076
3499327b 5077const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
0f113f3e 5078{
9a555706 5079#ifndef OPENSSL_NO_COMP
38b051a1
TM		 5080 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5081
5082 if (sc == NULL)
5083 return NULL;
5084
1e76110b 5085 return sc->rlayer.rrlmethod->get_compression(sc->rlayer.rrl);
9a555706
RS		 5086#else
5087 return NULL;
0f113f3e 5088#endif
9a555706 5089}
0f113f3e 5090
38b051a1 5091int ssl_init_wbio_buffer(SSL_CONNECTION *s)
0f113f3e
MC		 5092{
5093 BIO *bbio;
5094
2e7dc7cd
MC		 5095 if (s->bbio != NULL) {
5096 /* Already buffered. */
5097 return 1;
0f113f3e 5098 }
46417569 5099
2e7dc7cd 5100 bbio = BIO_new(BIO_f_buffer());
25d02f33 5101 if (bbio == NULL || BIO_set_read_buffer_size(bbio, 1) <= 0) {
2e7dc7cd 5102 BIO_free(bbio);
6849b73c 5103 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
46417569 5104 return 0;
0f113f3e 5105 }
2e7dc7cd
MC		 5106 s->bbio = bbio;
5107 s->wbio = BIO_push(bbio, s->wbio);
46417569 5108
b5cf81f7
MC		 5109 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5110
46417569 5111 return 1;
0f113f3e 5112}
413c4f45 5113
38b051a1 5114int ssl_free_wbio_buffer(SSL_CONNECTION *s)
0f113f3e 5115{
62adbcee 5116 /* callers ensure s is never null */
0f113f3e 5117 if (s->bbio == NULL)
b77f3ed1 5118 return 1;
0f113f3e 5119
2e7dc7cd 5120 s->wbio = BIO_pop(s->wbio);
b5cf81f7
MC		 5121 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5122
0f113f3e
MC		 5123 BIO_free(s->bbio);
5124 s->bbio = NULL;
b77f3ed1
MC		 5125
5126 return 1;
0f113f3e
MC		 5127}
5128
5129void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
5130{
5131 ctx->quiet_shutdown = mode;
5132}
58964a49 5133
0821bcd4 5134int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
0f113f3e 5135{
26a7d938 5136 return ctx->quiet_shutdown;
0f113f3e 5137}
58964a49 5138
0f113f3e
MC		 5139void SSL_set_quiet_shutdown(SSL *s, int mode)
5140{
38b051a1
TM		 5141 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5142
7757f5ef 5143 /* Not supported with QUIC */
38b051a1
TM		 5144 if (sc == NULL)
5145 return;
5146
5147 sc->quiet_shutdown = mode;
0f113f3e 5148}
58964a49 5149
0821bcd4 5150int SSL_get_quiet_shutdown(const SSL *s)
0f113f3e 5151{
38b051a1
TM		 5152 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5153
7757f5ef 5154 /* Not supported with QUIC */
38b051a1
TM		 5155 if (sc == NULL)
5156 return 0;
5157
5158 return sc->quiet_shutdown;
0f113f3e 5159}
58964a49 5160
0f113f3e
MC		 5161void SSL_set_shutdown(SSL *s, int mode)
5162{
38b051a1
TM		 5163 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5164
7757f5ef 5165 /* Not supported with QUIC */
38b051a1
TM		 5166 if (sc == NULL)
5167 return;
5168
5169 sc->shutdown = mode;
0f113f3e 5170}
58964a49 5171
0821bcd4 5172int SSL_get_shutdown(const SSL *s)
0f113f3e 5173{
38b051a1
TM		 5174 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5175
7757f5ef
TM		 5176#ifndef OPENSSL_NO_QUIC
5177 /* QUIC: Just indicate whether the connection was shutdown cleanly. */
5178 if (IS_QUIC(s))
5179 return ossl_quic_get_shutdown(s);
5180#endif
5181
38b051a1
TM		 5182 if (sc == NULL)
5183 return 0;
5184
5185 return sc->shutdown;
0f113f3e 5186}
58964a49 5187
0821bcd4 5188int SSL_version(const SSL *s)
0f113f3e 5189{
38b051a1
TM		 5190 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5191
50769b15
MC		 5192#ifndef OPENSSL_NO_QUIC
5193 /* We only support QUICv1 - so if its QUIC its QUICv1 */
f8636c7e 5194 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
50769b15
MC		 5195 return OSSL_QUIC1_VERSION;
5196#endif
38b051a1
TM		 5197 if (sc == NULL)
5198 return 0;
5199
5200 return sc->version;
6546e9b2
AG		 5201}
5202
5203int SSL_client_version(const SSL *s)
5204{
38b051a1
TM		 5205 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5206
44cb36d0
TM		 5207#ifndef OPENSSL_NO_QUIC
5208 /* We only support QUICv1 - so if its QUIC its QUICv1 */
5209 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
5210 return OSSL_QUIC1_VERSION;
5211#endif
38b051a1
TM		 5212 if (sc == NULL)
5213 return 0;
5214
5215 return sc->client_version;
0f113f3e 5216}
58964a49 5217
0821bcd4 5218SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
0f113f3e 5219{
6546e9b2 5220 return ssl->ctx;
0f113f3e
MC		 5221}
5222
5223SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
5224{
24a0d393 5225 CERT *new_cert;
38b051a1
TM		 5226 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
5227
44cb36d0 5228 /* TODO(QUIC FUTURE): Add support for QUIC */
38b051a1
TM		 5229 if (sc == NULL)
5230 return NULL;
5231
0f113f3e
MC		 5232 if (ssl->ctx == ctx)
5233 return ssl->ctx;
0f113f3e 5234 if (ctx == NULL)
38b051a1 5235 ctx = sc->session_ctx;
24a0d393
KR		 5236 new_cert = ssl_cert_dup(ctx->cert);
5237 if (new_cert == NULL) {
5238 return NULL;
0f113f3e 5239 }
21181889 5240
38b051a1 5241 if (!custom_exts_copy_flags(&new_cert->custext, &sc->cert->custext)) {
21181889
MC		 5242 ssl_cert_free(new_cert);
5243 return NULL;
5244 }
5245
38b051a1
TM		 5246 ssl_cert_free(sc->cert);
5247 sc->cert = new_cert;
0f113f3e
MC		 5248
5249 /*
5250 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
5251 * so setter APIs must prevent invalid lengths from entering the system.
5252 */
38b051a1 5253 if (!ossl_assert(sc->sid_ctx_length <= sizeof(sc->sid_ctx)))
380a522f 5254 return NULL;
0f113f3e
MC		 5255
5256 /*
5257 * If the session ID context matches that of the parent SSL_CTX,
5258 * inherit it from the new SSL_CTX as well. If however the context does
5259 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
5260 * leave it unchanged.
5261 */
5262 if ((ssl->ctx != NULL) &&
38b051a1
TM		 5263 (sc->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
5264 (memcmp(sc->sid_ctx, ssl->ctx->sid_ctx, sc->sid_ctx_length) == 0)) {
5265 sc->sid_ctx_length = ctx->sid_ctx_length;
5266 memcpy(&sc->sid_ctx, &ctx->sid_ctx, sizeof(sc->sid_ctx));
0f113f3e
MC		 5267 }
5268
16203f7b 5269 SSL_CTX_up_ref(ctx);
a230b26e 5270 SSL_CTX_free(ssl->ctx); /* decrement reference count */
0f113f3e
MC		 5271 ssl->ctx = ctx;
5272
16203f7b 5273 return ssl->ctx;
0f113f3e 5274}
ed3883d2 5275
4f43d0e7 5276int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
0f113f3e 5277{
d8652be0
MC		 5278 return X509_STORE_set_default_paths_ex(ctx->cert_store, ctx->libctx,
5279 ctx->propq);
0f113f3e 5280}
58964a49 5281
d84a7b20
MC		 5282int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
5283{
5284 X509_LOOKUP *lookup;
5285
5286 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
5287 if (lookup == NULL)
5288 return 0;
6dcb100f
RL		 5289
5290 /* We ignore errors, in case the directory doesn't exist */
5291 ERR_set_mark();
5292
d84a7b20
MC		 5293 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
5294
6dcb100f 5295 ERR_pop_to_mark();
d84a7b20
MC		 5296
5297 return 1;
5298}
5299
5300int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
5301{
5302 X509_LOOKUP *lookup;
5303
5304 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
5305 if (lookup == NULL)
5306 return 0;
5307
492bc359 5308 /* We ignore errors, in case the file doesn't exist */
6dcb100f
RL		 5309 ERR_set_mark();
5310
d8652be0
MC		 5311 X509_LOOKUP_load_file_ex(lookup, NULL, X509_FILETYPE_DEFAULT, ctx->libctx,
5312 ctx->propq);
d84a7b20 5313
6dcb100f
RL		 5314 ERR_pop_to_mark();
5315
5316 return 1;
5317}
5318
5319int SSL_CTX_set_default_verify_store(SSL_CTX *ctx)
5320{
5321 X509_LOOKUP *lookup;
5322
5323 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_store());
5324 if (lookup == NULL)
5325 return 0;
5326
5327 /* We ignore errors, in case the directory doesn't exist */
5328 ERR_set_mark();
5329
d8652be0 5330 X509_LOOKUP_add_store_ex(lookup, NULL, ctx->libctx, ctx->propq);
6dcb100f
RL		 5331
5332 ERR_pop_to_mark();
d84a7b20
MC		 5333
5334 return 1;
5335}
5336
6dcb100f
RL		 5337int SSL_CTX_load_verify_file(SSL_CTX *ctx, const char *CAfile)
5338{
d8652be0
MC		 5339 return X509_STORE_load_file_ex(ctx->cert_store, CAfile, ctx->libctx,
5340 ctx->propq);
6dcb100f
RL		 5341}
5342
5343int SSL_CTX_load_verify_dir(SSL_CTX *ctx, const char *CApath)
5344{
5345 return X509_STORE_load_path(ctx->cert_store, CApath);
5346}
5347
5348int SSL_CTX_load_verify_store(SSL_CTX *ctx, const char *CAstore)
5349{
d8652be0
MC		 5350 return X509_STORE_load_store_ex(ctx->cert_store, CAstore, ctx->libctx,
5351 ctx->propq);
6dcb100f
RL		 5352}
5353
303c0028 5354int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
0f113f3e
MC		 5355 const char *CApath)
5356{
6dcb100f
RL		 5357 if (CAfile == NULL && CApath == NULL)
5358 return 0;
5359 if (CAfile != NULL && !SSL_CTX_load_verify_file(ctx, CAfile))
5360 return 0;
5361 if (CApath != NULL && !SSL_CTX_load_verify_dir(ctx, CApath))
5362 return 0;
5363 return 1;
0f113f3e 5364}
58964a49 5365
45d87a1f 5366void SSL_set_info_callback(SSL *ssl,
0f113f3e
MC		 5367 void (*cb) (const SSL *ssl, int type, int val))
5368{
38b051a1
TM		 5369 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5370
5371 if (sc == NULL)
5372 return;
5373
5374 sc->info_callback = cb;
0f113f3e
MC		 5375}
5376
5377/*
5378 * One compiler (Diab DCC) doesn't like argument names in returned function
5379 * pointer.
5380 */
5381void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
5382 int /* type */ ,
5383 int /* val */ ) {
38b051a1
TM		 5384 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5385
5386 if (sc == NULL)
5387 return NULL;
5388
5389 return sc->info_callback;
0f113f3e 5390}
58964a49 5391
0f113f3e
MC		 5392void SSL_set_verify_result(SSL *ssl, long arg)
5393{
38b051a1
TM		 5394 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5395
5396 if (sc == NULL)
5397 return;
5398
5399 sc->verify_result = arg;
0f113f3e 5400}
58964a49 5401
0821bcd4 5402long SSL_get_verify_result(const SSL *ssl)
0f113f3e 5403{
38b051a1
TM		 5404 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5405
5406 if (sc == NULL)
5407 return 0;
5408
5409 return sc->verify_result;
0f113f3e
MC		 5410}
5411
d9f1c639 5412size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
858618e7 5413{
38b051a1
TM		 5414 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5415
5416 if (sc == NULL)
5417 return 0;
5418
6b8f5d0d 5419 if (outlen == 0)
38b051a1
TM		 5420 return sizeof(sc->s3.client_random);
5421 if (outlen > sizeof(sc->s3.client_random))
5422 outlen = sizeof(sc->s3.client_random);
5423 memcpy(out, sc->s3.client_random, outlen);
d9f1c639 5424 return outlen;
858618e7
NM		 5425}
5426
d9f1c639 5427size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
858618e7 5428{
38b051a1
TM		 5429 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5430
5431 if (sc == NULL)
5432 return 0;
5433
6b8f5d0d 5434 if (outlen == 0)
38b051a1
TM		 5435 return sizeof(sc->s3.server_random);
5436 if (outlen > sizeof(sc->s3.server_random))
5437 outlen = sizeof(sc->s3.server_random);
5438 memcpy(out, sc->s3.server_random, outlen);
d9f1c639 5439 return outlen;
858618e7
NM		 5440}
5441
d9f1c639 5442size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
a230b26e 5443 unsigned char *out, size_t outlen)
858618e7 5444{
d9f1c639
MC		 5445 if (outlen == 0)
5446 return session->master_key_length;
8c1a5343 5447 if (outlen > session->master_key_length)
858618e7
NM		 5448 outlen = session->master_key_length;
5449 memcpy(out, session->master_key, outlen);
d9f1c639 5450 return outlen;
858618e7
NM		 5451}
5452
725b0f1e 5453int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
911d63f2
MC		 5454 size_t len)
5455{
5456 if (len > sizeof(sess->master_key))
5457 return 0;
5458
5459 memcpy(sess->master_key, in, len);
5460 sess->master_key_length = len;
911d63f2
MC		 5461 return 1;
5462}
5463
5464
0f113f3e
MC		 5465int SSL_set_ex_data(SSL *s, int idx, void *arg)
5466{
26a7d938 5467 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
0f113f3e
MC		 5468}
5469
5470void *SSL_get_ex_data(const SSL *s, int idx)
5471{
26a7d938 5472 return CRYPTO_get_ex_data(&s->ex_data, idx);
0f113f3e
MC		 5473}
5474
0f113f3e
MC		 5475int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
5476{
26a7d938 5477 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
0f113f3e
MC		 5478}
5479
5480void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
5481{
26a7d938 5482 return CRYPTO_get_ex_data(&s->ex_data, idx);
0f113f3e 5483}
58964a49 5484
0821bcd4 5485X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
0f113f3e 5486{
26a7d938 5487 return ctx->cert_store;
0f113f3e 5488}
413c4f45 5489
0f113f3e
MC		 5490void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
5491{
222561fe 5492 X509_STORE_free(ctx->cert_store);
0f113f3e
MC		 5493 ctx->cert_store = store;
5494}
413c4f45 5495
b50052db
TS		 5496void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
5497{
5498 if (store != NULL)
5499 X509_STORE_up_ref(store);
5500 SSL_CTX_set_cert_store(ctx, store);
5501}
5502
0821bcd4 5503int SSL_want(const SSL *s)
0f113f3e 5504{
38b051a1
TM		 5505 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5506
5debf070
HL		 5507#ifndef OPENSSL_NO_QUIC
5508 if (IS_QUIC(s))
5509 return ossl_quic_want(s);
5510#endif
5511
38b051a1
TM		 5512 if (sc == NULL)
5513 return SSL_NOTHING;
5514
5515 return sc->rwstate;
0f113f3e 5516}
413c4f45 5517
ddac1974
NL		 5518#ifndef OPENSSL_NO_PSK
5519int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
0f113f3e
MC		 5520{
5521 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
6849b73c 5522 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
0f113f3e
MC		 5523 return 0;
5524 }
df6da24b 5525 OPENSSL_free(ctx->cert->psk_identity_hint);
0f113f3e 5526 if (identity_hint != NULL) {
7644a9ae 5527 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
df6da24b 5528 if (ctx->cert->psk_identity_hint == NULL)
0f113f3e
MC		 5529 return 0;
5530 } else
df6da24b 5531 ctx->cert->psk_identity_hint = NULL;
0f113f3e
MC		 5532 return 1;
5533}
ddac1974
NL		 5534
5535int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
0f113f3e 5536{
38b051a1
TM		 5537 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5538
5539 if (sc == NULL)
0f113f3e
MC		 5540 return 0;
5541
0f113f3e 5542 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
6849b73c 5543 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
0f113f3e
MC		 5544 return 0;
5545 }
38b051a1 5546 OPENSSL_free(sc->cert->psk_identity_hint);
0f113f3e 5547 if (identity_hint != NULL) {
38b051a1
TM		 5548 sc->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5549 if (sc->cert->psk_identity_hint == NULL)
0f113f3e
MC		 5550 return 0;
5551 } else
38b051a1 5552 sc->cert->psk_identity_hint = NULL;
0f113f3e
MC		 5553 return 1;
5554}
ddac1974
NL		 5555
5556const char *SSL_get_psk_identity_hint(const SSL *s)
0f113f3e 5557{
38b051a1
TM		 5558 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5559
5560 if (sc == NULL || sc->session == NULL)
0f113f3e 5561 return NULL;
38b051a1
TM		 5562
5563 return sc->session->psk_identity_hint;
0f113f3e 5564}
ddac1974
NL		 5565
5566const char *SSL_get_psk_identity(const SSL *s)
0f113f3e 5567{
38b051a1
TM		 5568 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5569
5570 if (sc == NULL || sc->session == NULL)
0f113f3e 5571 return NULL;
38b051a1
TM		 5572
5573 return sc->session->psk_identity;
0f113f3e 5574}
7806f3dd 5575
8cbfcc70 5576void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
0f113f3e 5577{
38b051a1
TM		 5578 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5579
5580 if (sc == NULL)
5581 return;
5582
5583 sc->psk_client_callback = cb;
0f113f3e 5584}
7806f3dd 5585
8cbfcc70 5586void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
0f113f3e
MC		 5587{
5588 ctx->psk_client_callback = cb;
5589}
7806f3dd 5590
8cbfcc70 5591void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
0f113f3e 5592{
38b051a1
TM		 5593 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5594
5595 if (sc == NULL)
5596 return;
5597
5598 sc->psk_server_callback = cb;
0f113f3e 5599}
7806f3dd 5600
8cbfcc70 5601void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
0f113f3e
MC		 5602{
5603 ctx->psk_server_callback = cb;
5604}
5605#endif
5606
f46184bd
MC		 5607void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
5608{
38b051a1
TM		 5609 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5610
5611 if (sc == NULL)
5612 return;
5613
5614 sc->psk_find_session_cb = cb;
f46184bd
MC		 5615}
5616
5617void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
5618 SSL_psk_find_session_cb_func cb)
5619{
5620 ctx->psk_find_session_cb = cb;
5621}
5622
5623void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
5624{
38b051a1
TM		 5625 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5626
5627 if (sc == NULL)
5628 return;
5629
5630 sc->psk_use_session_cb = cb;
f46184bd
MC		 5631}
5632
5633void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
5634 SSL_psk_use_session_cb_func cb)
5635{
5636 ctx->psk_use_session_cb = cb;
5637}
5638
0f113f3e
MC		 5639void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
5640 void (*cb) (int write_p, int version,
5641 int content_type, const void *buf,
5642 size_t len, SSL *ssl, void *arg))
5643{
5644 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5645}
5646
5647void SSL_set_msg_callback(SSL *ssl,
5648 void (*cb) (int write_p, int version,
5649 int content_type, const void *buf,
5650 size_t len, SSL *ssl, void *arg))
5651{
5652 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5653}
a661b653 5654
7c2d4fee 5655void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
0f113f3e
MC		 5656 int (*cb) (SSL *ssl,
5657 int
5658 is_forward_secure))
5659{
5660 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5661 (void (*)(void))cb);
5662}
5663
7c2d4fee 5664void SSL_set_not_resumable_session_callback(SSL *ssl,
0f113f3e
MC		 5665 int (*cb) (SSL *ssl,
5666 int is_forward_secure))
5667{
5668 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5669 (void (*)(void))cb);
5670}
5671
c649d10d
TS		 5672void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
5673 size_t (*cb) (SSL *ssl, int type,
5674 size_t len, void *arg))
5675{
5676 ctx->record_padding_cb = cb;
5677}
5678
5679void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
5680{
5681 ctx->record_padding_arg = arg;
5682}
5683
3499327b 5684void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
c649d10d
TS		 5685{
5686 return ctx->record_padding_arg;
5687}
5688
5689int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
5690{
6e5550a1
HL		 5691 if (IS_QUIC_CTX(ctx) && block_size > 1)
5692 return 0;
5693
c649d10d
TS		 5694 /* block size of 0 or 1 is basically no padding */
5695 if (block_size == 1)
5696 ctx->block_padding = 0;
5697 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5698 ctx->block_padding = block_size;
5699 else
5700 return 0;
5701 return 1;
5702}
5703
a6d36303 5704int SSL_set_record_padding_callback(SSL *ssl,
c649d10d
TS		 5705 size_t (*cb) (SSL *ssl, int type,
5706 size_t len, void *arg))
5707{
a6d36303 5708 BIO *b;
9562842b 5709 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
38b051a1 5710
9562842b 5711 if (sc == NULL)
38b051a1 5712 return 0;
a6d36303
VF		 5713
5714 b = SSL_get_wbio(ssl);
5715 if (b == NULL || !BIO_get_ktls_send(b)) {
eb7d6c2a 5716 sc->rlayer.record_padding_cb = cb;
a6d36303
VF		 5717 return 1;
5718 }
5719 return 0;
c649d10d
TS		 5720}
5721
5722void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
5723{
38b051a1
TM		 5724 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5725
5726 if (sc == NULL)
5727 return;
5728
eb7d6c2a 5729 sc->rlayer.record_padding_arg = arg;
c649d10d
TS		 5730}
5731
3499327b 5732void *SSL_get_record_padding_callback_arg(const SSL *ssl)
c649d10d 5733{
38b051a1
TM		 5734 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5735
5736 if (sc == NULL)
5737 return NULL;
5738
eb7d6c2a 5739 return sc->rlayer.record_padding_arg;
c649d10d
TS		 5740}
5741
5742int SSL_set_block_padding(SSL *ssl, size_t block_size)
5743{
38b051a1
TM		 5744 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5745
d6e7ebba 5746 if (sc == NULL || (IS_QUIC(ssl) && block_size > 1))
38b051a1
TM		 5747 return 0;
5748
c649d10d
TS		 5749 /* block size of 0 or 1 is basically no padding */
5750 if (block_size == 1)
eb7d6c2a 5751 sc->rlayer.block_padding = 0;
c649d10d 5752 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
eb7d6c2a 5753 sc->rlayer.block_padding = block_size;
c649d10d
TS		 5754 else
5755 return 0;
5756 return 1;
5757}
5758
9d0a8bb7
MC		 5759int SSL_set_num_tickets(SSL *s, size_t num_tickets)
5760{
38b051a1
TM		 5761 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5762
5763 if (sc == NULL)
5764 return 0;
5765
5766 sc->num_tickets = num_tickets;
9d0a8bb7
MC		 5767
5768 return 1;
5769}
5770
3499327b 5771size_t SSL_get_num_tickets(const SSL *s)
9d0a8bb7 5772{
38b051a1
TM		 5773 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5774
5775 if (sc == NULL)
5776 return 0;
5777
5778 return sc->num_tickets;
9d0a8bb7
MC		 5779}
5780
5781int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
5782{
5783 ctx->num_tickets = num_tickets;
5784
5785 return 1;
5786}
5787
3499327b 5788size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
9d0a8bb7
MC		 5789{
5790 return ctx->num_tickets;
5791}
5792
48fbcbac 5793/* Retrieve handshake hashes */
38b051a1
TM		 5794int ssl_handshake_hash(SSL_CONNECTION *s,
5795 unsigned char *out, size_t outlen,
8c1a5343 5796 size_t *hashlen)
48fbcbac 5797{
6e59a892 5798 EVP_MD_CTX *ctx = NULL;
555cbb32 5799 EVP_MD_CTX *hdgst = s->s3.handshake_dgst;
ed576acd 5800 int hashleni = EVP_MD_CTX_get_size(hdgst);
8c1a5343
MC		 5801 int ret = 0;
5802
f63a17d6 5803 if (hashleni < 0 || (size_t)hashleni > outlen) {
c48ffbcc 5804 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
28ba2541 5805 goto err;
f63a17d6 5806 }
8c1a5343 5807
bfb0641f 5808 ctx = EVP_MD_CTX_new();
147ed5f9
TL		 5809 if (ctx == NULL) {
5810 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6e59a892 5811 goto err;
147ed5f9 5812 }
8c1a5343 5813
6e59a892 5814 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
f63a17d6 5815 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
c48ffbcc 5816 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
8c1a5343 5817 goto err;
f63a17d6 5818 }
8c1a5343
MC		 5819
5820 *hashlen = hashleni;
5821
5822 ret = 1;
48fbcbac 5823 err:
bfb0641f 5824 EVP_MD_CTX_free(ctx);
48fbcbac
DSH		 5825 return ret;
5826}
5827
c04b66b1 5828int SSL_session_reused(const SSL *s)
0f113f3e 5829{
38b051a1
TM		 5830 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5831
5832 if (sc == NULL)
5833 return 0;
5834
5835 return sc->hit;
0f113f3e 5836}
08557cf2 5837
69443116 5838int SSL_is_server(const SSL *s)
0f113f3e 5839{
38b051a1
TM		 5840 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5841
5842 if (sc == NULL)
5843 return 0;
5844
5845 return sc->server;
0f113f3e 5846}
87adf1fa 5847
00db8c60 5848#ifndef OPENSSL_NO_DEPRECATED_1_1_0
47153c72
RS		 5849void SSL_set_debug(SSL *s, int debug)
5850{
5851 /* Old function was do-nothing anyway... */
5852 (void)s;
5853 (void)debug;
5854}
5855#endif
5856
b362ccab 5857void SSL_set_security_level(SSL *s, int level)
0f113f3e 5858{
38b051a1
TM		 5859 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5860
5861 if (sc == NULL)
5862 return;
5863
5864 sc->cert->sec_level = level;
0f113f3e 5865}
b362ccab
DSH		 5866
5867int SSL_get_security_level(const SSL *s)
0f113f3e 5868{
38b051a1
TM		 5869 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5870
5871 if (sc == NULL)
5872 return 0;
5873
5874 return sc->cert->sec_level;
0f113f3e 5875}
b362ccab 5876
0f113f3e 5877void SSL_set_security_callback(SSL *s,
a230b26e
EK		 5878 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5879 int op, int bits, int nid,
5880 void *other, void *ex))
0f113f3e 5881{
38b051a1
TM		 5882 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5883
5884 if (sc == NULL)
5885 return;
5886
5887 sc->cert->sec_cb = cb;
0f113f3e 5888}
b362ccab 5889
a230b26e
EK		 5890int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
5891 const SSL_CTX *ctx, int op,
5892 int bits, int nid, void *other,
5893 void *ex) {
38b051a1
TM		 5894 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5895
5896 if (sc == NULL)
5897 return NULL;
5898
5899 return sc->cert->sec_cb;
0f113f3e 5900}
b362ccab
DSH		 5901
5902void SSL_set0_security_ex_data(SSL *s, void *ex)
0f113f3e 5903{
38b051a1
TM		 5904 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5905
5906 if (sc == NULL)
5907 return;
5908
5909 sc->cert->sec_ex = ex;
0f113f3e 5910}
b362ccab
DSH		 5911
5912void *SSL_get0_security_ex_data(const SSL *s)
0f113f3e 5913{
38b051a1
TM		 5914 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5915
5916 if (sc == NULL)
5917 return NULL;
5918
5919 return sc->cert->sec_ex;
0f113f3e 5920}
b362ccab
DSH		 5921
5922void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
0f113f3e
MC		 5923{
5924 ctx->cert->sec_level = level;
5925}
b362ccab
DSH		 5926
5927int SSL_CTX_get_security_level(const SSL_CTX *ctx)
0f113f3e
MC		 5928{
5929 return ctx->cert->sec_level;
5930}
b362ccab 5931
0f113f3e 5932void SSL_CTX_set_security_callback(SSL_CTX *ctx,
a230b26e
EK		 5933 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5934 int op, int bits, int nid,
5935 void *other, void *ex))
0f113f3e
MC		 5936{
5937 ctx->cert->sec_cb = cb;
5938}
b362ccab 5939
e4646a89
KR		 5940int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
5941 const SSL_CTX *ctx,
0f113f3e
MC		 5942 int op, int bits,
5943 int nid,
5944 void *other,
5945 void *ex) {
5946 return ctx->cert->sec_cb;
5947}
b362ccab
DSH		 5948
5949void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
0f113f3e
MC		 5950{
5951 ctx->cert->sec_ex = ex;
5952}
b362ccab
DSH		 5953
5954void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
0f113f3e
MC		 5955{
5956 return ctx->cert->sec_ex;
5957}
b362ccab 5958
56bd1783 5959uint64_t SSL_CTX_get_options(const SSL_CTX *ctx)
8106cb8b
VD		 5960{
5961 return ctx->options;
5962}
a230b26e 5963
56bd1783 5964uint64_t SSL_get_options(const SSL *s)
8106cb8b 5965{
38b051a1
TM		 5966 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5967
f0d9757c
HL		 5968#ifndef OPENSSL_NO_QUIC
5969 if (IS_QUIC(s))
5970 return ossl_quic_get_options(s);
5971#endif
5972
38b051a1
TM		 5973 if (sc == NULL)
5974 return 0;
5975
5976 return sc->options;
8106cb8b 5977}
a230b26e 5978
56bd1783 5979uint64_t SSL_CTX_set_options(SSL_CTX *ctx, uint64_t op)
8106cb8b
VD		 5980{
5981 return ctx->options |= op;
5982}
a230b26e 5983
56bd1783 5984uint64_t SSL_set_options(SSL *s, uint64_t op)
8106cb8b 5985{
a02571a0 5986 SSL_CONNECTION *sc;
4566dae7 5987 OSSL_PARAM options[2], *opts = options;
38b051a1 5988
a02571a0 5989#ifndef OPENSSL_NO_QUIC
f0d9757c
HL		 5990 if (IS_QUIC(s))
5991 return ossl_quic_set_options(s, op);
a02571a0
TM		 5992#endif
5993
f0d9757c
HL		 5994 sc = SSL_CONNECTION_FROM_SSL(s);
5995 if (sc == NULL)
38b051a1
TM		 5996 return 0;
5997
4566dae7
MC		 5998 sc->options |= op;
5999
6000 *opts++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS,
6001 &sc->options);
6002 *opts = OSSL_PARAM_construct_end();
6003
6004 /* Ignore return value */
6005 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
e8e95f20 6006 sc->rlayer.wrlmethod->set_options(sc->rlayer.wrl, options);
4566dae7
MC		 6007
6008 return sc->options;
8106cb8b 6009}
a230b26e 6010
56bd1783 6011uint64_t SSL_CTX_clear_options(SSL_CTX *ctx, uint64_t op)
8106cb8b
VD		 6012{
6013 return ctx->options &= ~op;
6014}
a230b26e 6015
56bd1783 6016uint64_t SSL_clear_options(SSL *s, uint64_t op)
8106cb8b 6017{
38b051a1 6018 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
e8e95f20 6019 OSSL_PARAM options[2], *opts = options;
38b051a1 6020
f0d9757c
HL		 6021#ifndef OPENSSL_NO_QUIC
6022 if (IS_QUIC(s))
6023 return ossl_quic_clear_options(s, op);
6024#endif
6025
38b051a1
TM		 6026 if (sc == NULL)
6027 return 0;
6028
e8e95f20 6029 sc->options &= ~op;
6030
6031 *opts++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS,
6032 &sc->options);
6033 *opts = OSSL_PARAM_construct_end();
6034
6035 /* Ignore return value */
6036 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
6037 sc->rlayer.wrlmethod->set_options(sc->rlayer.wrl, options);
6038
6039 return sc->options;
8106cb8b
VD		 6040}
6041
696178ed
DSH		 6042STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
6043{
38b051a1
TM		 6044 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6045
6046 if (sc == NULL)
6047 return NULL;
6048
6049 return sc->verified_chain;
696178ed
DSH		 6050}
6051
0f113f3e 6052IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
ed29e82a
RP		 6053
6054#ifndef OPENSSL_NO_CT
6055
6056/*
6057 * Moves SCTs from the |src| stack to the |dst| stack.
6058 * The source of each SCT will be set to |origin|.
6059 * If |dst| points to a NULL pointer, a new stack will be created and owned by
6060 * the caller.
6061 * Returns the number of SCTs moved, or a negative integer if an error occurs.
a435d786
BE		 6062 * The |dst| stack is created and possibly partially populated even in case
6063 * of error, likewise the |src| stack may be left in an intermediate state.
ed29e82a 6064 */
a230b26e
EK		 6065static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
6066 sct_source_t origin)
ed29e82a
RP		 6067{
6068 int scts_moved = 0;
6069 SCT *sct = NULL;
6070
6071 if (*dst == NULL) {
6072 *dst = sk_SCT_new_null();
6073 if (*dst == NULL) {
e077455e 6074 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
ed29e82a
RP		 6075 goto err;
6076 }
6077 }
6078
a8086e6b 6079 while ((sct = sk_SCT_pop(src)) != NULL) {
ed29e82a
RP		 6080 if (SCT_set_source(sct, origin) != 1)
6081 goto err;
6082
a435d786 6083 if (!sk_SCT_push(*dst, sct))
ed29e82a
RP		 6084 goto err;
6085 scts_moved += 1;
6086 }
6087
6088 return scts_moved;
a230b26e 6089 err:
a435d786 6090 SCT_free(sct);
cc7113e8 6091 return -1;
ed29e82a
RP		 6092}
6093
6094/*
a230b26e 6095 * Look for data collected during ServerHello and parse if found.
6b13bd1d 6096 * Returns the number of SCTs extracted.
a230b26e 6097 */
38b051a1 6098static int ct_extract_tls_extension_scts(SSL_CONNECTION *s)
ed29e82a
RP		 6099{
6100 int scts_extracted = 0;
6101
aff8c126
RS		 6102 if (s->ext.scts != NULL) {
6103 const unsigned char *p = s->ext.scts;
6104 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
ed29e82a
RP		 6105
6106 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
6107
6108 SCT_LIST_free(scts);
6109 }
6110
6111 return scts_extracted;
6112}
6113
6114/*
6115 * Checks for an OCSP response and then attempts to extract any SCTs found if it
6116 * contains an SCT X509 extension. They will be stored in |s->scts|.
6117 * Returns:
6118 * - The number of SCTs extracted, assuming an OCSP response exists.
6119 * - 0 if no OCSP response exists or it contains no SCTs.
6120 * - A negative integer if an error occurs.
6121 */
38b051a1 6122static int ct_extract_ocsp_response_scts(SSL_CONNECTION *s)
ed29e82a 6123{
a230b26e 6124# ifndef OPENSSL_NO_OCSP
ed29e82a
RP		 6125 int scts_extracted = 0;
6126 const unsigned char *p;
6127 OCSP_BASICRESP *br = NULL;
6128 OCSP_RESPONSE *rsp = NULL;
6129 STACK_OF(SCT) *scts = NULL;
6130 int i;
6131
aff8c126 6132 if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
ed29e82a
RP		 6133 goto err;
6134
aff8c126
RS		 6135 p = s->ext.ocsp.resp;
6136 rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
ed29e82a
RP		 6137 if (rsp == NULL)
6138 goto err;
6139
6140 br = OCSP_response_get1_basic(rsp);
6141 if (br == NULL)
6142 goto err;
6143
6144 for (i = 0; i < OCSP_resp_count(br); ++i) {
6145 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
6146
6147 if (single == NULL)
6148 continue;
6149
a230b26e
EK		 6150 scts =
6151 OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
6152 scts_extracted =
6153 ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
ed29e82a
RP		 6154 if (scts_extracted < 0)
6155 goto err;
6156 }
a230b26e 6157 err:
ed29e82a
RP		 6158 SCT_LIST_free(scts);
6159 OCSP_BASICRESP_free(br);
6160 OCSP_RESPONSE_free(rsp);
6161 return scts_extracted;
a230b26e 6162# else
3e41ac35
MC		 6163 /* Behave as if no OCSP response exists */
6164 return 0;
a230b26e 6165# endif
ed29e82a
RP		 6166}
6167
6168/*
6169 * Attempts to extract SCTs from the peer certificate.
6170 * Return the number of SCTs extracted, or a negative integer if an error
6171 * occurs.
6172 */
38b051a1 6173static int ct_extract_x509v3_extension_scts(SSL_CONNECTION *s)
ed29e82a
RP		 6174{
6175 int scts_extracted = 0;
3f3c7d26 6176 X509 *cert = s->session != NULL ? s->session->peer : NULL;
ed29e82a
RP		 6177
6178 if (cert != NULL) {
6179 STACK_OF(SCT) *scts =
6180 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
6181
6182 scts_extracted =
6183 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
6184
6185 SCT_LIST_free(scts);
6186 }
6187
6188 return scts_extracted;
6189}
6190
6191/*
6192 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
6193 * response (if it exists) and X509v3 extensions in the certificate.
6194 * Returns NULL if an error occurs.
6195 */
6196const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
6197{
38b051a1
TM		 6198 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6199
6200 if (sc == NULL)
6201 return NULL;
6202
6203 if (!sc->scts_parsed) {
6204 if (ct_extract_tls_extension_scts(sc) < 0 ||
6205 ct_extract_ocsp_response_scts(sc) < 0 ||
6206 ct_extract_x509v3_extension_scts(sc) < 0)
ed29e82a
RP		 6207 goto err;
6208
38b051a1 6209 sc->scts_parsed = 1;
ed29e82a 6210 }
38b051a1 6211 return sc->scts;
a230b26e 6212 err:
ed29e82a
RP		 6213 return NULL;
6214}
6215
bbaeadb0 6216static int ct_permissive(const CT_POLICY_EVAL_CTX *ctx,
43341433 6217 const STACK_OF(SCT) *scts, void *unused_arg)
ed29e82a 6218{
43341433
VD		 6219 return 1;
6220}
6221
bbaeadb0 6222static int ct_strict(const CT_POLICY_EVAL_CTX *ctx,
43341433
VD		 6223 const STACK_OF(SCT) *scts, void *unused_arg)
6224{
6225 int count = scts != NULL ? sk_SCT_num(scts) : 0;
6226 int i;
ed29e82a 6227
43341433
VD		 6228 for (i = 0; i < count; ++i) {
6229 SCT *sct = sk_SCT_value(scts, i);
6230 int status = SCT_get_validation_status(sct);
6231
6232 if (status == SCT_VALIDATION_STATUS_VALID)
6233 return 1;
6234 }
6849b73c 6235 ERR_raise(ERR_LIB_SSL, SSL_R_NO_VALID_SCTS);
43341433
VD		 6236 return 0;
6237}
6238
6239int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
6240 void *arg)
6241{
38b051a1
TM		 6242 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6243
6244 if (sc == NULL)
6245 return 0;
6246
ed29e82a
RP		 6247 /*
6248 * Since code exists that uses the custom extension handler for CT, look
6249 * for this and throw an error if they have already registered to use CT.
6250 */
6251 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
a230b26e
EK		 6252 TLSEXT_TYPE_signed_certificate_timestamp))
6253 {
6849b73c 6254 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
43341433 6255 return 0;
ed29e82a
RP		 6256 }
6257
ed29e82a 6258 if (callback != NULL) {
a230b26e
EK		 6259 /*
6260 * If we are validating CT, then we MUST accept SCTs served via OCSP
6261 */
ed29e82a 6262 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
43341433 6263 return 0;
ed29e82a
RP		 6264 }
6265
38b051a1
TM		 6266 sc->ct_validation_callback = callback;
6267 sc->ct_validation_callback_arg = arg;
43341433
VD		 6268
6269 return 1;
ed29e82a
RP		 6270}
6271
43341433 6272int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
a230b26e 6273 ssl_ct_validation_cb callback, void *arg)
ed29e82a 6274{
ed29e82a
RP		 6275 /*
6276 * Since code exists that uses the custom extension handler for CT, look for
6277 * this and throw an error if they have already registered to use CT.
6278 */
6279 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
a230b26e
EK		 6280 TLSEXT_TYPE_signed_certificate_timestamp))
6281 {
6849b73c 6282 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
43341433 6283 return 0;
ed29e82a
RP		 6284 }
6285
6286 ctx->ct_validation_callback = callback;
6287 ctx->ct_validation_callback_arg = arg;
43341433 6288 return 1;
ed29e82a
RP		 6289}
6290
43341433 6291int SSL_ct_is_enabled(const SSL *s)
ed29e82a 6292{
38b051a1
TM		 6293 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6294
6295 if (sc == NULL)
6296 return 0;
6297
6298 return sc->ct_validation_callback != NULL;
ed29e82a
RP		 6299}
6300
43341433 6301int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
ed29e82a 6302{
43341433 6303 return ctx->ct_validation_callback != NULL;
ed29e82a
RP		 6304}
6305
38b051a1 6306int ssl_validate_ct(SSL_CONNECTION *s)
ed29e82a
RP		 6307{
6308 int ret = 0;
3f3c7d26 6309 X509 *cert = s->session != NULL ? s->session->peer : NULL;
43341433 6310 X509 *issuer;
b9aec69a 6311 SSL_DANE *dane = &s->dane;
ed29e82a
RP		 6312 CT_POLICY_EVAL_CTX *ctx = NULL;
6313 const STACK_OF(SCT) *scts;
6314
43341433
VD		 6315 /*
6316 * If no callback is set, the peer is anonymous, or its chain is invalid,
6317 * skip SCT validation - just return success. Applications that continue
6318 * handshakes without certificates, with unverified chains, or pinned leaf
6319 * certificates are outside the scope of the WebPKI and CT.
6320 *
6321 * The above exclusions notwithstanding the vast majority of peers will
6322 * have rather ordinary certificate chains validated by typical
6323 * applications that perform certificate verification and therefore will
6324 * process SCTs when enabled.
6325 */
6326 if (s->ct_validation_callback == NULL || cert == NULL ||
6327 s->verify_result != X509_V_OK ||
a230b26e 6328 s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
ed29e82a
RP		 6329 return 1;
6330
43341433
VD		 6331 /*
6332 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
6333 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
6334 */
6335 if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
6336 switch (dane->mtlsa->usage) {
6337 case DANETLS_USAGE_DANE_TA:
6338 case DANETLS_USAGE_DANE_EE:
6339 return 1;
6340 }
ed29e82a
RP		 6341 }
6342
38b051a1
TM		 6343 ctx = CT_POLICY_EVAL_CTX_new_ex(SSL_CONNECTION_GET_CTX(s)->libctx,
6344 SSL_CONNECTION_GET_CTX(s)->propq);
ed29e82a 6345 if (ctx == NULL) {
e077455e 6346 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CT_LIB);
ed29e82a
RP		 6347 goto end;
6348 }
6349
43341433 6350 issuer = sk_X509_value(s->verified_chain, 1);
a1bb7708
RP		 6351 CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
6352 CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
38b051a1
TM		 6353 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx,
6354 SSL_CONNECTION_GET_CTX(s)->ctlog_store);
6a71e06d 6355 CT_POLICY_EVAL_CTX_set_time(
38b051a1 6356 ctx, (uint64_t)SSL_SESSION_get_time(s->session) * 1000);
ed29e82a 6357
38b051a1 6358 scts = SSL_get0_peer_scts(SSL_CONNECTION_GET_SSL(s));
ed29e82a 6359
43341433
VD		 6360 /*
6361 * This function returns success (> 0) only when all the SCTs are valid, 0
6362 * when some are invalid, and < 0 on various internal errors (out of
6363 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
6364 * reason to abort the handshake, that decision is up to the callback.
6365 * Therefore, we error out only in the unexpected case that the return
6366 * value is negative.
6367 *
6368 * XXX: One might well argue that the return value of this function is an
f430ba31 6369 * unfortunate design choice. Its job is only to determine the validation
43341433
VD		 6370 * status of each of the provided SCTs. So long as it correctly separates
6371 * the wheat from the chaff it should return success. Failure in this case
6372 * ought to correspond to an inability to carry out its duties.
6373 */
6374 if (SCT_LIST_validate(scts, ctx) < 0) {
c48ffbcc 6375 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_SCT_VERIFICATION_FAILED);
ed29e82a
RP		 6376 goto end;
6377 }
6378
6379 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
6380 if (ret < 0)
a230b26e 6381 ret = 0; /* This function returns 0 on failure */
f63a17d6 6382 if (!ret)
c48ffbcc 6383 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_CALLBACK_FAILED);
ed29e82a 6384
a230b26e 6385 end:
ed29e82a 6386 CT_POLICY_EVAL_CTX_free(ctx);
f75b34c8
VD		 6387 /*
6388 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
6389 * failure return code here. Also the application may wish the complete
6390 * the handshake, and then disconnect cleanly at a higher layer, after
6391 * checking the verification status of the completed connection.
6392 *
6393 * We therefore force a certificate verification failure which will be
6394 * visible via SSL_get_verify_result() and cached as part of any resumed
6395 * session.
6396 *
6397 * Note: the permissive callback is for information gathering only, always
6398 * returns success, and does not affect verification status. Only the
6399 * strict callback or a custom application-specified callback can trigger
6400 * connection failure or record a verification error.
6401 */
6402 if (ret <= 0)
6403 s->verify_result = X509_V_ERR_NO_VALID_SCTS;
ed29e82a
RP		 6404 return ret;
6405}
6406
43341433
VD		 6407int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
6408{
6409 switch (validation_mode) {
6410 default:
6849b73c 6411 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
43341433
VD		 6412 return 0;
6413 case SSL_CT_VALIDATION_PERMISSIVE:
6414 return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
6415 case SSL_CT_VALIDATION_STRICT:
6416 return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
6417 }
6418}
6419
6420int SSL_enable_ct(SSL *s, int validation_mode)
6421{
6422 switch (validation_mode) {
6423 default:
6849b73c 6424 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
43341433
VD		 6425 return 0;
6426 case SSL_CT_VALIDATION_PERMISSIVE:
6427 return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
6428 case SSL_CT_VALIDATION_STRICT:
6429 return SSL_set_ct_validation_callback(s, ct_strict, NULL);
6430 }
6431}
6432
ed29e82a
RP		 6433int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
6434{
328f36c5 6435 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
ed29e82a
RP		 6436}
6437
6438int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
6439{
6440 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
6441}
6442
bbaeadb0 6443void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE *logs)
8359b57f
RP		 6444{
6445 CTLOG_STORE_free(ctx->ctlog_store);
6446 ctx->ctlog_store = logs;
6447}
6448
6449const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
6450{
6451 return ctx->ctlog_store;
6452}
6453
6b1bb98f
BK		 6454#endif /* OPENSSL_NO_CT */
6455
a9c0d8be
DB		 6456void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
6457 void *arg)
6b1bb98f 6458{
a9c0d8be
DB		 6459 c->client_hello_cb = cb;
6460 c->client_hello_cb_arg = arg;
6b1bb98f
BK		 6461}
6462
a9c0d8be 6463int SSL_client_hello_isv2(SSL *s)
6b1bb98f 6464{
38b051a1
TM		 6465 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6466
6467 if (sc == NULL)
6468 return 0;
6469
6470 if (sc->clienthello == NULL)
6b1bb98f 6471 return 0;
38b051a1 6472 return sc->clienthello->isv2;
6b1bb98f
BK		 6473}
6474
a9c0d8be 6475unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
6b1bb98f 6476{
38b051a1
TM		 6477 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6478
6479 if (sc == NULL)
6480 return 0;
6481
6482 if (sc->clienthello == NULL)
6b1bb98f 6483 return 0;
38b051a1 6484 return sc->clienthello->legacy_version;
6b1bb98f
BK		 6485}
6486
a9c0d8be 6487size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out)
6b1bb98f 6488{
38b051a1
TM		 6489 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6490
6491 if (sc == NULL)
6492 return 0;
6493
6494 if (sc->clienthello == NULL)
6b1bb98f
BK		 6495 return 0;
6496 if (out != NULL)
38b051a1 6497 *out = sc->clienthello->random;
6b1bb98f
BK		 6498 return SSL3_RANDOM_SIZE;
6499}
6500
a9c0d8be 6501size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
6b1bb98f 6502{
38b051a1
TM		 6503 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6504
6505 if (sc == NULL)
6506 return 0;
6507
6508 if (sc->clienthello == NULL)
6b1bb98f
BK		 6509 return 0;
6510 if (out != NULL)
38b051a1
TM		 6511 *out = sc->clienthello->session_id;
6512 return sc->clienthello->session_id_len;
6b1bb98f
BK		 6513}
6514
a9c0d8be 6515size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
6b1bb98f 6516{
38b051a1
TM		 6517 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6518
6519 if (sc == NULL)
6520 return 0;
6521
6522 if (sc->clienthello == NULL)
6b1bb98f
BK		 6523 return 0;
6524 if (out != NULL)
38b051a1
TM		 6525 *out = PACKET_data(&sc->clienthello->ciphersuites);
6526 return PACKET_remaining(&sc->clienthello->ciphersuites);
6b1bb98f
BK		 6527}
6528
a9c0d8be 6529size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
6b1bb98f 6530{
38b051a1
TM		 6531 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6532
6533 if (sc == NULL)
6534 return 0;
6535
6536 if (sc->clienthello == NULL)
6b1bb98f
BK		 6537 return 0;
6538 if (out != NULL)
38b051a1
TM		 6539 *out = sc->clienthello->compressions;
6540 return sc->clienthello->compressions_len;
6b1bb98f
BK		 6541}
6542
a9c0d8be 6543int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
193b5d76
BK		 6544{
6545 RAW_EXTENSION *ext;
6546 int *present;
6547 size_t num = 0, i;
38b051a1 6548 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
193b5d76 6549
38b051a1 6550 if (sc == NULL)
193b5d76 6551 return 0;
38b051a1
TM		 6552
6553 if (sc->clienthello == NULL || out == NULL || outlen == NULL)
6554 return 0;
6555 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6556 ext = sc->clienthello->pre_proc_exts + i;
193b5d76
BK		 6557 if (ext->present)
6558 num++;
6559 }
6fda11ae 6560 if (num == 0) {
6561 *out = NULL;
6562 *outlen = 0;
6563 return 1;
6564 }
e077455e 6565 if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL)
193b5d76 6566 return 0;
38b051a1
TM		 6567 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6568 ext = sc->clienthello->pre_proc_exts + i;
193b5d76
BK		 6569 if (ext->present) {
6570 if (ext->received_order >= num)
6571 goto err;
6572 present[ext->received_order] = ext->type;
6573 }
6574 }
6575 *out = present;
6576 *outlen = num;
6577 return 1;
6578 err:
6579 OPENSSL_free(present);
6580 return 0;
6581}
6582
13a53fbf
PL		 6583int SSL_client_hello_get_extension_order(SSL *s, uint16_t *exts, size_t *num_exts)
6584{
6585 RAW_EXTENSION *ext;
6586 size_t num = 0, i;
38b051a1
TM		 6587 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6588
6589 if (sc == NULL)
6590 return 0;
13a53fbf 6591
38b051a1 6592 if (sc->clienthello == NULL || num_exts == NULL)
13a53fbf 6593 return 0;
38b051a1
TM		 6594 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6595 ext = sc->clienthello->pre_proc_exts + i;
13a53fbf
PL		 6596 if (ext->present)
6597 num++;
6598 }
6599 if (num == 0) {
6600 *num_exts = 0;
6601 return 1;
6602 }
6603 if (exts == NULL) {
6604 *num_exts = num;
6605 return 1;
6606 }
6607 if (*num_exts < num)
6608 return 0;
38b051a1
TM		 6609 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6610 ext = sc->clienthello->pre_proc_exts + i;
13a53fbf
PL		 6611 if (ext->present) {
6612 if (ext->received_order >= num)
6613 return 0;
6614 exts[ext->received_order] = ext->type;
6615 }
6616 }
6617 *num_exts = num;
6618 return 1;
6619}
6620
a9c0d8be 6621int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
6b1bb98f
BK		 6622 size_t *outlen)
6623{
6624 size_t i;
6625 RAW_EXTENSION *r;
38b051a1 6626 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6b1bb98f 6627
38b051a1 6628 if (sc == NULL)
6b1bb98f 6629 return 0;
38b051a1
TM		 6630
6631 if (sc->clienthello == NULL)
6632 return 0;
6633 for (i = 0; i < sc->clienthello->pre_proc_exts_len; ++i) {
6634 r = sc->clienthello->pre_proc_exts + i;
6b1bb98f
BK		 6635 if (r->present && r->type == type) {
6636 if (out != NULL)
6637 *out = PACKET_data(&r->data);
6638 if (outlen != NULL)
6639 *outlen = PACKET_remaining(&r->data);
6640 return 1;
6641 }
6642 }
6643 return 0;
6644}
2faa1b48 6645
a58eb06d
TS		 6646int SSL_free_buffers(SSL *ssl)
6647{
38b051a1 6648 RECORD_LAYER *rl;
9562842b 6649 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
38b051a1
TM		 6650
6651 if (sc == NULL)
6652 return 0;
6653
6654 rl = &sc->rlayer;
a58eb06d 6655
7eb39ecb
MC		 6656 return rl->rrlmethod->free_buffers(rl->rrl)
6657 && rl->wrlmethod->free_buffers(rl->wrl);
a58eb06d
TS		 6658}
6659
6660int SSL_alloc_buffers(SSL *ssl)
6661{
7eb39ecb 6662 RECORD_LAYER *rl;
38b051a1
TM		 6663 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6664
6665 if (sc == NULL)
6666 return 0;
6667
fe33e2c8 6668 /* QUIC always has buffers allocated. */
d6e7ebba 6669 if (IS_QUIC(ssl))
fe33e2c8
HL		 6670 return 1;
6671
7eb39ecb
MC		 6672 rl = &sc->rlayer;
6673
6674 return rl->rrlmethod->alloc_buffers(rl->rrl)
6675 && rl->wrlmethod->alloc_buffers(rl->wrl);
a58eb06d
TS		 6676}
6677
2faa1b48
CB		 6678void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
6679{
6680 ctx->keylog_callback = cb;
6681}
6682
6683SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
6684{
6685 return ctx->keylog_callback;
6686}
6687
6688static int nss_keylog_int(const char *prefix,
38b051a1 6689 SSL_CONNECTION *sc,
2faa1b48
CB		 6690 const uint8_t *parameter_1,
6691 size_t parameter_1_len,
6692 const uint8_t *parameter_2,
6693 size_t parameter_2_len)
6694{
6695 char *out = NULL;
6696 char *cursor = NULL;
6697 size_t out_len = 0;
6698 size_t i;
6699 size_t prefix_len;
38b051a1 6700 SSL_CTX *sctx = SSL_CONNECTION_GET_CTX(sc);
2faa1b48 6701
38b051a1 6702 if (sctx->keylog_callback == NULL)
20870286 6703 return 1;
2faa1b48
CB		 6704
6705 /*
6706 * Our output buffer will contain the following strings, rendered with
6707 * space characters in between, terminated by a NULL character: first the
6708 * prefix, then the first parameter, then the second parameter. The
6709 * meaning of each parameter depends on the specific key material being
6710 * logged. Note that the first and second parameters are encoded in
6711 * hexadecimal, so we need a buffer that is twice their lengths.
6712 */
6713 prefix_len = strlen(prefix);
e931f370 6714 out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
e077455e 6715 if ((out = cursor = OPENSSL_malloc(out_len)) == NULL)
2faa1b48 6716 return 0;
2faa1b48
CB		 6717
6718 strcpy(cursor, prefix);
6719 cursor += prefix_len;
6720 *cursor++ = ' ';
6721
6722 for (i = 0; i < parameter_1_len; i++) {
6723 sprintf(cursor, "%02x", parameter_1[i]);
6724 cursor += 2;
6725 }
6726 *cursor++ = ' ';
6727
6728 for (i = 0; i < parameter_2_len; i++) {
6729 sprintf(cursor, "%02x", parameter_2[i]);
6730 cursor += 2;
6731 }
6732 *cursor = '\0';
6733
38b051a1 6734 sctx->keylog_callback(SSL_CONNECTION_GET_SSL(sc), (const char *)out);
e931f370 6735 OPENSSL_clear_free(out, out_len);
2faa1b48
CB		 6736 return 1;
6737
6738}
6739
38b051a1 6740int ssl_log_rsa_client_key_exchange(SSL_CONNECTION *sc,
2faa1b48
CB		 6741 const uint8_t *encrypted_premaster,
6742 size_t encrypted_premaster_len,
6743 const uint8_t *premaster,
6744 size_t premaster_len)
6745{
6746 if (encrypted_premaster_len < 8) {
38b051a1 6747 SSLfatal(sc, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
2faa1b48
CB		 6748 return 0;
6749 }
6750
f0deb4d3 6751 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
2faa1b48 6752 return nss_keylog_int("RSA",
38b051a1 6753 sc,
2faa1b48 6754 encrypted_premaster,
f0deb4d3 6755 8,
2faa1b48
CB		 6756 premaster,
6757 premaster_len);
6758}
6759
38b051a1 6760int ssl_log_secret(SSL_CONNECTION *sc,
2c7bd692
CB		 6761 const char *label,
6762 const uint8_t *secret,
6763 size_t secret_len)
2faa1b48 6764{
2c7bd692 6765 return nss_keylog_int(label,
38b051a1
TM		 6766 sc,
6767 sc->s3.client_random,
2c7bd692
CB		 6768 SSL3_RANDOM_SIZE,
6769 secret,
6770 secret_len);
2faa1b48
CB		 6771}
6772
ccb8e6e0
BK		 6773#define SSLV2_CIPHER_LEN 3
6774
38b051a1 6775int ssl_cache_cipherlist(SSL_CONNECTION *s, PACKET *cipher_suites, int sslv2format)
ccb8e6e0 6776{
ccb8e6e0 6777 int n;
ccb8e6e0
BK		 6778
6779 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6780
6781 if (PACKET_remaining(cipher_suites) == 0) {
c48ffbcc 6782 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
90134d98 6783 return 0;
ccb8e6e0
BK		 6784 }
6785
6786 if (PACKET_remaining(cipher_suites) % n != 0) {
c48ffbcc 6787 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
90134d98 6788 return 0;
ccb8e6e0
BK		 6789 }
6790
555cbb32
TS		 6791 OPENSSL_free(s->s3.tmp.ciphers_raw);
6792 s->s3.tmp.ciphers_raw = NULL;
6793 s->s3.tmp.ciphers_rawlen = 0;
ccb8e6e0
BK		 6794
6795 if (sslv2format) {
6796 size_t numciphers = PACKET_remaining(cipher_suites) / n;
6797 PACKET sslv2ciphers = *cipher_suites;
6798 unsigned int leadbyte;
6799 unsigned char *raw;
6800
6801 /*
6802 * We store the raw ciphers list in SSLv3+ format so we need to do some
6803 * preprocessing to convert the list first. If there are any SSLv2 only
6804 * ciphersuites with a non-zero leading byte then we are going to
6805 * slightly over allocate because we won't store those. But that isn't a
6806 * problem.
6807 */
6808 raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
555cbb32 6809 s->s3.tmp.ciphers_raw = raw;
ccb8e6e0 6810 if (raw == NULL) {
e077455e 6811 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
f63a17d6 6812 return 0;
ccb8e6e0 6813 }
555cbb32 6814 for (s->s3.tmp.ciphers_rawlen = 0;
ccb8e6e0
BK		 6815 PACKET_remaining(&sslv2ciphers) > 0;
6816 raw += TLS_CIPHER_LEN) {
6817 if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
6818 || (leadbyte == 0
6819 && !PACKET_copy_bytes(&sslv2ciphers, raw,
6820 TLS_CIPHER_LEN))
6821 || (leadbyte != 0
6822 && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
c48ffbcc 6823 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_PACKET);
555cbb32
TS		 6824 OPENSSL_free(s->s3.tmp.ciphers_raw);
6825 s->s3.tmp.ciphers_raw = NULL;
6826 s->s3.tmp.ciphers_rawlen = 0;
f63a17d6 6827 return 0;
ccb8e6e0
BK		 6828 }
6829 if (leadbyte == 0)
555cbb32 6830 s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN;
ccb8e6e0 6831 }
555cbb32
TS		 6832 } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw,
6833 &s->s3.tmp.ciphers_rawlen)) {
c48ffbcc 6834 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
f63a17d6 6835 return 0;
ccb8e6e0 6836 }
90134d98 6837 return 1;
90134d98
BK		 6838}
6839
6840int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
6841 int isv2format, STACK_OF(SSL_CIPHER) **sk,
6842 STACK_OF(SSL_CIPHER) **scsvs)
6843{
90134d98 6844 PACKET pkt;
38b051a1
TM		 6845 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6846
6847 if (sc == NULL)
6848 return 0;
90134d98
BK		 6849
6850 if (!PACKET_buf_init(&pkt, bytes, len))
6851 return 0;
38b051a1 6852 return ossl_bytes_to_cipher_list(sc, &pkt, sk, scsvs, isv2format, 0);
90134d98
BK		 6853}
6854
38b051a1
TM		 6855int ossl_bytes_to_cipher_list(SSL_CONNECTION *s, PACKET *cipher_suites,
6856 STACK_OF(SSL_CIPHER) **skp,
6857 STACK_OF(SSL_CIPHER) **scsvs_out,
6858 int sslv2format, int fatal)
90134d98
BK		 6859{
6860 const SSL_CIPHER *c;
6861 STACK_OF(SSL_CIPHER) *sk = NULL;
6862 STACK_OF(SSL_CIPHER) *scsvs = NULL;
6863 int n;
6864 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
6865 unsigned char cipher[SSLV2_CIPHER_LEN];
6866
6867 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6868
6869 if (PACKET_remaining(cipher_suites) == 0) {
f63a17d6 6870 if (fatal)
c48ffbcc 6871 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
f63a17d6 6872 else
6849b73c 6873 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHERS_SPECIFIED);
90134d98
BK		 6874 return 0;
6875 }
6876
6877 if (PACKET_remaining(cipher_suites) % n != 0) {
f63a17d6 6878 if (fatal)
c48ffbcc 6879 SSLfatal(s, SSL_AD_DECODE_ERROR,
f63a17d6
MC		 6880 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6881 else
6849b73c 6882 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
90134d98
BK		 6883 return 0;
6884 }
6885
6886 sk = sk_SSL_CIPHER_new_null();
6887 scsvs = sk_SSL_CIPHER_new_null();
6888 if (sk == NULL || scsvs == NULL) {
f63a17d6 6889 if (fatal)
e077455e 6890 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
f63a17d6 6891 else
e077455e 6892 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
90134d98
BK		 6893 goto err;
6894 }
ccb8e6e0
BK		 6895
6896 while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
6897 /*
6898 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
6899 * first byte set to zero, while true SSLv2 ciphers have a non-zero
6900 * first byte. We don't support any true SSLv2 ciphers, so skip them.
6901 */
6902 if (sslv2format && cipher[0] != '\0')
6903 continue;
6904
ccb8e6e0
BK		 6905 /* For SSLv2-compat, ignore leading 0-byte. */
6906 c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
6907 if (c != NULL) {
90134d98
BK		 6908 if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
6909 (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
f63a17d6 6910 if (fatal)
e077455e 6911 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
f63a17d6 6912 else
e077455e 6913 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
ccb8e6e0
BK		 6914 goto err;
6915 }
6916 }
6917 }
6918 if (PACKET_remaining(cipher_suites) > 0) {
f63a17d6 6919 if (fatal)
c48ffbcc 6920 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_LENGTH);
f63a17d6 6921 else
6849b73c 6922 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
ccb8e6e0
BK		 6923 goto err;
6924 }
6925
90134d98
BK		 6926 if (skp != NULL)
6927 *skp = sk;
6928 else
6929 sk_SSL_CIPHER_free(sk);
6930 if (scsvs_out != NULL)
6931 *scsvs_out = scsvs;
6932 else
6933 sk_SSL_CIPHER_free(scsvs);
6934 return 1;
ccb8e6e0
BK		 6935 err:
6936 sk_SSL_CIPHER_free(sk);
90134d98
BK		 6937 sk_SSL_CIPHER_free(scsvs);
6938 return 0;
ccb8e6e0 6939}
3fc8d856
MC		 6940
6941int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
6942{
6943 ctx->max_early_data = max_early_data;
6944
6945 return 1;
6946}
6947
46dcb945 6948uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
3fc8d856
MC		 6949{
6950 return ctx->max_early_data;
6951}
6952
6953int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
6954{
9562842b 6955 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
38b051a1 6956
9562842b 6957 if (sc == NULL)
38b051a1
TM		 6958 return 0;
6959
6960 sc->max_early_data = max_early_data;
3fc8d856
MC		 6961
6962 return 1;
6963}
6964
a8e75d56 6965uint32_t SSL_get_max_early_data(const SSL *s)
3fc8d856 6966{
38b051a1
TM		 6967 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6968
6969 if (sc == NULL)
6970 return 0;
6971
6972 return sc->max_early_data;
3fc8d856 6973}
ae3947de 6974
4e8548e8
MC		 6975int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
6976{
6977 ctx->recv_max_early_data = recv_max_early_data;
6978
6979 return 1;
6980}
6981
6982uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
6983{
6984 return ctx->recv_max_early_data;
6985}
6986
6987int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
6988{
9562842b 6989 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
38b051a1 6990
9562842b 6991 if (sc == NULL)
38b051a1
TM		 6992 return 0;
6993
6994 sc->recv_max_early_data = recv_max_early_data;
4e8548e8
MC		 6995
6996 return 1;
6997}
6998
6999uint32_t SSL_get_recv_max_early_data(const SSL *s)
7000{
38b051a1
TM		 7001 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7002
7003 if (sc == NULL)
7004 return 0;
7005
7006 return sc->recv_max_early_data;
4e8548e8
MC		 7007}
7008
38b051a1 7009__owur unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION *sc)
cf72c757
F		 7010{
7011 /* Return any active Max Fragment Len extension */
38b051a1
TM		 7012 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session))
7013 return GET_MAX_FRAGMENT_LENGTH(sc->session);
cf72c757
F		 7014
7015 /* return current SSL connection setting */
38b051a1 7016 return sc->max_send_fragment;
cf72c757
F		 7017}
7018
38b051a1 7019__owur unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION *sc)
cf72c757
F		 7020{
7021 /* Return a value regarding an active Max Fragment Len extension */
38b051a1
TM		 7022 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session)
7023 && sc->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(sc->session))
7024 return GET_MAX_FRAGMENT_LENGTH(sc->session);
cf72c757
F		 7025
7026 /* else limit |split_send_fragment| to current |max_send_fragment| */
38b051a1
TM		 7027 if (sc->split_send_fragment > sc->max_send_fragment)
7028 return sc->max_send_fragment;
cf72c757
F		 7029
7030 /* return current SSL connection setting */
38b051a1 7031 return sc->split_send_fragment;
cf72c757 7032}
042c5753
MC		 7033
7034int SSL_stateless(SSL *s)
7035{
7036 int ret;
9562842b 7037 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
38b051a1 7038
9562842b 7039 if (sc == NULL)
38b051a1 7040 return 0;
042c5753
MC		 7041
7042 /* Ensure there is no state left over from a previous invocation */
7043 if (!SSL_clear(s))
d6bb50a5 7044 return 0;
042c5753
MC		 7045
7046 ERR_clear_error();
7047
38b051a1 7048 sc->s3.flags |= TLS1_FLAGS_STATELESS;
042c5753 7049 ret = SSL_accept(s);
38b051a1 7050 sc->s3.flags &= ~TLS1_FLAGS_STATELESS;
042c5753 7051
38b051a1 7052 if (ret > 0 && sc->ext.cookieok)
c36001c3
MC		 7053 return 1;
7054
38b051a1 7055 if (sc->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(sc))
e440f513
MC		 7056 return 0;
7057
7058 return -1;
042c5753 7059}
9d75dce3 7060
e97be718
MC		 7061void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
7062{
7063 ctx->pha_enabled = val;
7064}
7065
32097b33 7066void SSL_set_post_handshake_auth(SSL *ssl, int val)
9d75dce3 7067{
9562842b 7068 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
38b051a1
TM		 7069
7070 if (sc == NULL)
7071 return;
7072
7073 sc->pha_enabled = val;
9d75dce3
TS		 7074}
7075
7076int SSL_verify_client_post_handshake(SSL *ssl)
7077{
38b051a1 7078 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
9ea0e729 7079
d6e7ebba
HL		 7080#ifndef OPENSSL_NO_QUIC
7081 if (IS_QUIC(ssl)) {
9ea0e729
HL		 7082 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
7083 return 0;
7084 }
7085#endif
38b051a1
TM		 7086
7087 if (sc == NULL)
7088 return 0;
7089
7090 if (!SSL_CONNECTION_IS_TLS13(sc)) {
6849b73c 7091 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
9d75dce3
TS		 7092 return 0;
7093 }
38b051a1 7094 if (!sc->server) {
6849b73c 7095 ERR_raise(ERR_LIB_SSL, SSL_R_NOT_SERVER);
9d75dce3
TS		 7096 return 0;
7097 }
7098
7099 if (!SSL_is_init_finished(ssl)) {
6849b73c 7100 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
9d75dce3
TS		 7101 return 0;
7102 }
7103
38b051a1 7104 switch (sc->post_handshake_auth) {
9d75dce3 7105 case SSL_PHA_NONE:
6849b73c 7106 ERR_raise(ERR_LIB_SSL, SSL_R_EXTENSION_NOT_RECEIVED);
9d75dce3
TS		 7107 return 0;
7108 default:
7109 case SSL_PHA_EXT_SENT:
6849b73c 7110 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
9d75dce3
TS		 7111 return 0;
7112 case SSL_PHA_EXT_RECEIVED:
7113 break;
7114 case SSL_PHA_REQUEST_PENDING:
6849b73c 7115 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_PENDING);
9d75dce3
TS		 7116 return 0;
7117 case SSL_PHA_REQUESTED:
6849b73c 7118 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_SENT);
9d75dce3
TS		 7119 return 0;
7120 }
7121
38b051a1 7122 sc->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
9d75dce3
TS		 7123
7124 /* checks verify_mode and algorithm_auth */
38b051a1
TM		 7125 if (!send_certificate_request(sc)) {
7126 sc->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
6849b73c 7127 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CONFIG);
9d75dce3
TS		 7128 return 0;
7129 }
7130
38b051a1 7131 ossl_statem_set_in_init(sc, 1);
9d75dce3
TS		 7132 return 1;
7133}
df0fed9a
TS		 7134
7135int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
7136 SSL_CTX_generate_session_ticket_fn gen_cb,
7137 SSL_CTX_decrypt_session_ticket_fn dec_cb,
7138 void *arg)
7139{
7140 ctx->generate_ticket_cb = gen_cb;
7141 ctx->decrypt_ticket_cb = dec_cb;
7142 ctx->ticket_cb_data = arg;
7143 return 1;
7144}
c9598459
MC		 7145
7146void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
7147 SSL_allow_early_data_cb_fn cb,
7148 void *arg)
7149{
7150 ctx->allow_early_data_cb = cb;
7151 ctx->allow_early_data_cb_data = arg;
7152}
7153
7154void SSL_set_allow_early_data_cb(SSL *s,
7155 SSL_allow_early_data_cb_fn cb,
7156 void *arg)
7157{
9562842b 7158 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
38b051a1 7159
9562842b 7160 if (sc == NULL)
38b051a1
TM		 7161 return;
7162
7163 sc->allow_early_data_cb = cb;
7164 sc->allow_early_data_cb_data = arg;
c9598459 7165}
c8f6c28a 7166
b4250010 7167const EVP_CIPHER *ssl_evp_cipher_fetch(OSSL_LIB_CTX *libctx,
c8f6c28a
MC		 7168 int nid,
7169 const char *properties)
7170{
301fcb28 7171 const EVP_CIPHER *ciph;
5fcb97c6 7172
301fcb28
MC		 7173 ciph = tls_get_cipher_from_engine(nid);
7174 if (ciph != NULL)
7175 return ciph;
0618b62c 7176
c8f6c28a 7177 /*
301fcb28
MC		 7178 * If there is no engine cipher then we do an explicit fetch. This may fail
7179 * and that could be ok
c8f6c28a 7180 */
5fcb97c6
MC		 7181 ERR_set_mark();
7182 ciph = EVP_CIPHER_fetch(libctx, OBJ_nid2sn(nid), properties);
7183 ERR_pop_to_mark();
7184 return ciph;
c8f6c28a
MC		 7185}
7186
7187
7188int ssl_evp_cipher_up_ref(const EVP_CIPHER *cipher)
7189{
7190 /* Don't up-ref an implicit EVP_CIPHER */
ed576acd 7191 if (EVP_CIPHER_get0_provider(cipher) == NULL)
c8f6c28a
MC		 7192 return 1;
7193
7194 /*
7195 * The cipher was explicitly fetched and therefore it is safe to cast
7196 * away the const
7197 */
7198 return EVP_CIPHER_up_ref((EVP_CIPHER *)cipher);
7199}
7200
7201void ssl_evp_cipher_free(const EVP_CIPHER *cipher)
7202{
7203 if (cipher == NULL)
7204 return;
7205
ed576acd 7206 if (EVP_CIPHER_get0_provider(cipher) != NULL) {
c8f6c28a
MC		 7207 /*
7208 * The cipher was explicitly fetched and therefore it is safe to cast
7209 * away the const
7210 */
7211 EVP_CIPHER_free((EVP_CIPHER *)cipher);
7212 }
7213}
7214
b4250010 7215const EVP_MD *ssl_evp_md_fetch(OSSL_LIB_CTX *libctx,
c8f6c28a
MC		 7216 int nid,
7217 const char *properties)
7218{
301fcb28 7219 const EVP_MD *md;
5fcb97c6 7220
301fcb28
MC		 7221 md = tls_get_digest_from_engine(nid);
7222 if (md != NULL)
7223 return md;
c8f6c28a
MC		 7224
7225 /* Otherwise we do an explicit fetch */
5fcb97c6
MC		 7226 ERR_set_mark();
7227 md = EVP_MD_fetch(libctx, OBJ_nid2sn(nid), properties);
7228 ERR_pop_to_mark();
7229 return md;
c8f6c28a
MC		 7230}
7231
7232int ssl_evp_md_up_ref(const EVP_MD *md)
7233{
7234 /* Don't up-ref an implicit EVP_MD */
ed576acd 7235 if (EVP_MD_get0_provider(md) == NULL)
c8f6c28a
MC		 7236 return 1;
7237
7238 /*
7239 * The digest was explicitly fetched and therefore it is safe to cast
7240 * away the const
7241 */
7242 return EVP_MD_up_ref((EVP_MD *)md);
7243}
7244
7245void ssl_evp_md_free(const EVP_MD *md)
7246{
7247 if (md == NULL)
7248 return;
7249
ed576acd 7250 if (EVP_MD_get0_provider(md) != NULL) {
c8f6c28a
MC		 7251 /*
7252 * The digest was explicitly fetched and therefore it is safe to cast
7253 * away the const
7254 */
7255 EVP_MD_free((EVP_MD *)md);
7256 }
7257}
163f6dc1
MC		 7258
7259int SSL_set0_tmp_dh_pkey(SSL *s, EVP_PKEY *dhpkey)
7260{
38b051a1
TM		 7261 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7262
7263 if (sc == NULL)
7264 return 0;
7265
7266 if (!ssl_security(sc, SSL_SECOP_TMP_DH,
ed576acd 7267 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
276d6c68 7268 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
163f6dc1
MC		 7269 return 0;
7270 }
38b051a1
TM		 7271 EVP_PKEY_free(sc->cert->dh_tmp);
7272 sc->cert->dh_tmp = dhpkey;
163f6dc1
MC		 7273 return 1;
7274}
7275
7276int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX *ctx, EVP_PKEY *dhpkey)
7277{
7278 if (!ssl_ctx_security(ctx, SSL_SECOP_TMP_DH,
ed576acd 7279 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
276d6c68 7280 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
163f6dc1
MC		 7281 return 0;
7282 }
7283 EVP_PKEY_free(ctx->cert->dh_tmp);
7284 ctx->cert->dh_tmp = dhpkey;
7285 return 1;
7286}
68801bcb 7287
03bacce8 7288/* QUIC-specific methods which are supported on QUIC connections only. */
6084e04b 7289int SSL_handle_events(SSL *s)
03bacce8
HL		 7290{
7291 SSL_CONNECTION *sc;
03bacce8 7292
6d495cc4
HL		 7293#ifndef OPENSSL_NO_QUIC
7294 if (IS_QUIC(s))
6084e04b 7295 return ossl_quic_handle_events(s);
03bacce8
HL		 7296#endif
7297
7298 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7299 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc))
fbe2573d
HL		 7300 /*
7301 * DTLSv1_handle_timeout returns 0 if the timer wasn't expired yet,
7302 * which we consider a success case. Theoretically DTLSv1_handle_timeout
7303 * can also return 0 if s is NULL or not a DTLS object, but we've
7304 * already ruled out those possibilities above, so this is not possible
7305 * here. Thus the only failure cases are where DTLSv1_handle_timeout
7306 * returns -1.
7307 */
7308 return DTLSv1_handle_timeout(s) >= 0;
03bacce8 7309
fbe2573d 7310 return 1;
03bacce8
HL		 7311}
7312
7ea49713 7313int SSL_get_event_timeout(SSL *s, struct timeval *tv, int *is_infinite)
03bacce8
HL		 7314{
7315 SSL_CONNECTION *sc;
03bacce8 7316
6d495cc4
HL		 7317#ifndef OPENSSL_NO_QUIC
7318 if (IS_QUIC(s))
7ea49713 7319 return ossl_quic_get_event_timeout(s, tv, is_infinite);
03bacce8
HL		 7320#endif
7321
7322 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
fbe2573d 7323 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc)
7ea49713
HL		 7324 && DTLSv1_get_timeout(s, tv)) {
7325 *is_infinite = 0;
03bacce8 7326 return 1;
7ea49713 7327 }
03bacce8 7328
7ea49713 7329 tv->tv_sec = 1000000;
fbe2573d 7330 tv->tv_usec = 0;
7ea49713 7331 *is_infinite = 1;
fbe2573d 7332 return 1;
03bacce8
HL		 7333}
7334
68801bcb
HL		 7335int SSL_get_rpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7336{
f2624433 7337 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
68801bcb 7338
f2624433
HL		 7339#ifndef OPENSSL_NO_QUIC
7340 if (IS_QUIC(s))
7341 return ossl_quic_get_rpoll_descriptor(s, desc);
68801bcb 7342#endif
f2624433
HL		 7343
7344 if (sc == NULL || sc->rbio == NULL)
7345 return 0;
7346
7347 return BIO_get_rpoll_descriptor(sc->rbio, desc);
68801bcb
HL		 7348}
7349
7350int SSL_get_wpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7351{
f2624433 7352 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
68801bcb 7353
f2624433
HL		 7354#ifndef OPENSSL_NO_QUIC
7355 if (IS_QUIC(s))
7356 return ossl_quic_get_wpoll_descriptor(s, desc);
03bacce8 7357#endif
f2624433
HL		 7358
7359 if (sc == NULL || sc->wbio == NULL)
7360 return 0;
7361
7362 return BIO_get_wpoll_descriptor(sc->wbio, desc);
03bacce8
HL		 7363}
7364
b639475a 7365int SSL_net_read_desired(SSL *s)
03bacce8
HL		 7366{
7367#ifndef OPENSSL_NO_QUIC
6d495cc4 7368 if (!IS_QUIC(s))
3432157b 7369 return SSL_want_read(s);
03bacce8 7370
6d495cc4 7371 return ossl_quic_get_net_read_desired(s);
03bacce8 7372#else
3432157b 7373 return SSL_want_read(s);
03bacce8
HL		 7374#endif
7375}
7376
b639475a 7377int SSL_net_write_desired(SSL *s)
03bacce8
HL		 7378{
7379#ifndef OPENSSL_NO_QUIC
6d495cc4 7380 if (!IS_QUIC(s))
3432157b 7381 return SSL_want_write(s);
03bacce8 7382
6d495cc4 7383 return ossl_quic_get_net_write_desired(s);
03bacce8 7384#else
3432157b 7385 return SSL_want_write(s);
03bacce8
HL		 7386#endif
7387}
7388
7389int SSL_set_blocking_mode(SSL *s, int blocking)
7390{
7391#ifndef OPENSSL_NO_QUIC
6d495cc4 7392 if (!IS_QUIC(s))
03bacce8
HL		 7393 return 0;
7394
6d495cc4 7395 return ossl_quic_conn_set_blocking_mode(s, blocking);
03bacce8
HL		 7396#else
7397 return 0;
7398#endif
7399}
7400
7401int SSL_get_blocking_mode(SSL *s)
7402{
7403#ifndef OPENSSL_NO_QUIC
6d495cc4 7404 if (!IS_QUIC(s))
03bacce8
HL		 7405 return -1;
7406
6d495cc4 7407 return ossl_quic_conn_get_blocking_mode(s);
03bacce8
HL		 7408#else
7409 return -1;
7410#endif
7411}
7412
ce7a9e23 7413int SSL_set1_initial_peer_addr(SSL *s, const BIO_ADDR *peer_addr)
03bacce8
HL		 7414{
7415#ifndef OPENSSL_NO_QUIC
6d495cc4 7416 if (!IS_QUIC(s))
e8043229 7417 return 0;
03bacce8 7418
6d495cc4 7419 return ossl_quic_conn_set_initial_peer_addr(s, peer_addr);
68801bcb 7420#else
e8043229
HL		 7421 return 0;
7422#endif
7423}
7424
7425int SSL_shutdown_ex(SSL *ssl, uint64_t flags,
7426 const SSL_SHUTDOWN_EX_ARGS *args,
7427 size_t args_len)
7428{
7429#ifndef OPENSSL_NO_QUIC
6d495cc4 7430 if (!IS_QUIC(ssl))
e8043229
HL		 7431 return SSL_shutdown(ssl);
7432
6d495cc4 7433 return ossl_quic_conn_shutdown(ssl, flags, args, args_len);
e8043229
HL		 7434#else
7435 return SSL_shutdown(ssl);
68801bcb
HL		 7436#endif
7437}
a9979965
HL		 7438
7439int SSL_stream_conclude(SSL *ssl, uint64_t flags)
7440{
7441#ifndef OPENSSL_NO_QUIC
6d495cc4 7442 if (!IS_QUIC(ssl))
a9979965
HL		 7443 return 0;
7444
6d495cc4 7445 return ossl_quic_conn_stream_conclude(ssl);
a9979965
HL		 7446#else
7447 return 0;
7448#endif
7449}
3c95ef22 7450
cb5c208b
HL		 7451SSL *SSL_new_stream(SSL *s, uint64_t flags)
7452{
7453#ifndef OPENSSL_NO_QUIC
7454 if (!IS_QUIC(s))
7455 return NULL;
7456
7457 return ossl_quic_conn_stream_new(s, flags);
7458#else
7459 return NULL;
7460#endif
7461}
7462
020d0389
HL		 7463SSL *SSL_get0_connection(SSL *s)
7464{
7465#ifndef OPENSSL_NO_QUIC
7466 if (!IS_QUIC(s))
7467 return s;
7468
7469 return ossl_quic_get0_connection(s);
7470#else
7471 return s;
7472#endif
7473}
7474
e1dee2e3
HL		 7475int SSL_is_connection(SSL *s)
7476{
7477 return SSL_get0_connection(s) == s;
7478}
7479
1bca3f1b
HL		 7480int SSL_get_stream_type(SSL *s)
7481{
7482#ifndef OPENSSL_NO_QUIC
7483 if (!IS_QUIC(s))
7484 return SSL_STREAM_TYPE_BIDI;
7485
7486 return ossl_quic_get_stream_type(s);
7487#else
7488 return SSL_STREAM_TYPE_BIDI;
7489#endif
7490}
7491
19cb0887
HL		 7492uint64_t SSL_get_stream_id(SSL *s)
7493{
7494#ifndef OPENSSL_NO_QUIC
7495 if (!IS_QUIC(s))
7496 return UINT64_MAX;
7497
7498 return ossl_quic_get_stream_id(s);
7499#else
7500 return UINT64_MAX;
7501#endif
7502}
7503
d2e9e12b
HL		 7504int SSL_is_stream_local(SSL *s)
7505{
7506#ifndef OPENSSL_NO_QUIC
7507 if (!IS_QUIC(s))
7508 return -1;
7509
7510 return ossl_quic_is_stream_local(s);
7511#else
7512 return -1;
7513#endif
7514}
7515
8b7be3aa
HL		 7516int SSL_set_default_stream_mode(SSL *s, uint32_t mode)
7517{
7518#ifndef OPENSSL_NO_QUIC
7519 if (!IS_QUIC(s))
7520 return 0;
7521
7522 return ossl_quic_set_default_stream_mode(s, mode);
7523#else
7524 return 0;
7525#endif
7526}
7527
83df44ae 7528int SSL_set_incoming_stream_policy(SSL *s, int policy, uint64_t aec)
8a90df34
HL		 7529{
7530#ifndef OPENSSL_NO_QUIC
7531 if (!IS_QUIC(s))
7532 return 0;
7533
83df44ae 7534 return ossl_quic_set_incoming_stream_policy(s, policy, aec);
8a90df34
HL		 7535#else
7536 return 0;
7537#endif
7538}
7539
cb68ce9f
HL		 7540SSL *SSL_accept_stream(SSL *s, uint64_t flags)
7541{
7542#ifndef OPENSSL_NO_QUIC
7543 if (!IS_QUIC(s))
7544 return NULL;
7545
7546 return ossl_quic_accept_stream(s, flags);
7547#else
7548 return NULL;
7549#endif
7550}
7551
7552size_t SSL_get_accept_stream_queue_len(SSL *s)
7553{
7554#ifndef OPENSSL_NO_QUIC
7555 if (!IS_QUIC(s))
7556 return 0;
7557
7558 return ossl_quic_get_accept_stream_queue_len(s);
7559#else
7560 return 0;
7561#endif
7562}
7563
c3a04ea2
HL		 7564int SSL_stream_reset(SSL *s,
7565 const SSL_STREAM_RESET_ARGS *args,
7566 size_t args_len)
7567{
7568#ifndef OPENSSL_NO_QUIC
7569 if (!IS_QUIC(s))
7570 return 0;
7571
7572 return ossl_quic_stream_reset(s, args, args_len);
7573#else
7574 return 0;
7575#endif
7576}
7577
7578int SSL_get_stream_read_state(SSL *s)
7579{
7580#ifndef OPENSSL_NO_QUIC
7581 if (!IS_QUIC(s))
7582 return SSL_STREAM_STATE_NONE;
7583
7584 return ossl_quic_get_stream_read_state(s);
7585#else
7586 return SSL_STREAM_STATE_NONE;
7587#endif
7588}
7589
7590int SSL_get_stream_write_state(SSL *s)
7591{
7592#ifndef OPENSSL_NO_QUIC
7593 if (!IS_QUIC(s))
7594 return SSL_STREAM_STATE_NONE;
7595
7596 return ossl_quic_get_stream_write_state(s);
7597#else
7598 return SSL_STREAM_STATE_NONE;
7599#endif
7600}
7601
7602int SSL_get_stream_read_error_code(SSL *s, uint64_t *app_error_code)
7603{
7604#ifndef OPENSSL_NO_QUIC
7605 if (!IS_QUIC(s))
7606 return -1;
7607
7608 return ossl_quic_get_stream_read_error_code(s, app_error_code);
7609#else
7610 return -1;
7611#endif
7612}
7613
7614int SSL_get_stream_write_error_code(SSL *s, uint64_t *app_error_code)
7615{
7616#ifndef OPENSSL_NO_QUIC
7617 if (!IS_QUIC(s))
7618 return -1;
7619
7620 return ossl_quic_get_stream_write_error_code(s, app_error_code);
7621#else
7622 return -1;
7623#endif
7624}
7625
7626int SSL_get_conn_close_info(SSL *s, SSL_CONN_CLOSE_INFO *info,
7627 size_t info_len)
7628{
7629#ifndef OPENSSL_NO_QUIC
7630 if (!IS_QUIC(s))
7631 return -1;
7632
7633 return ossl_quic_get_conn_close_info(s, info, info_len);
7634#else
7635 return -1;
7636#endif
7637}
7638
e203d1b5
HL		 7639int SSL_get_value_uint(SSL *s, uint32_t class_, uint32_t id,
7640 uint64_t *value)
7641{
7642 if (value == NULL) {
7643 ERR_raise(ERR_LIB_SSL, ERR_R_PASSED_INVALID_ARGUMENT);
7644 return 0;
7645 }
7646
7647#ifndef OPENSSL_NO_QUIC
7648 if (IS_QUIC(s))
7649 return ossl_quic_get_value_uint(s, class_, id, value);
7650#endif
7651
7652 ERR_raise(ERR_LIB_SSL, SSL_R_UNSUPPORTED_PROTOCOL);
7653 return 0;
7654}
7655
7656int SSL_set_value_uint(SSL *s, uint32_t class_, uint32_t id,
7657 uint64_t value)
7658{
7659#ifndef OPENSSL_NO_QUIC
7660 if (IS_QUIC(s))
7661 return ossl_quic_set_value_uint(s, class_, id, value);
7662#endif
7663
7664 ERR_raise(ERR_LIB_SSL, SSL_R_UNSUPPORTED_PROTOCOL);
7665 return 0;
7666}
7667
3c95ef22
TS		 7668int SSL_add_expected_rpk(SSL *s, EVP_PKEY *rpk)
7669{
7670 unsigned char *data = NULL;
7671 SSL_DANE *dane = SSL_get0_dane(s);
7672 int ret;
7673
7674 if (dane == NULL || dane->dctx == NULL)
7675 return 0;
7676 if ((ret = i2d_PUBKEY(rpk, &data)) <= 0)
7677 return 0;
7678
7679 ret = SSL_dane_tlsa_add(s, DANETLS_USAGE_DANE_EE,
7680 DANETLS_SELECTOR_SPKI,
7681 DANETLS_MATCHING_FULL,
7682 data, (size_t)ret) > 0;
7683 OPENSSL_free(data);
7684 return ret;
7685}
7686
7687EVP_PKEY *SSL_get0_peer_rpk(const SSL *s)
7688{
7689 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7690
7691 if (sc == NULL || sc->session == NULL)
7692 return NULL;
7693 return sc->session->peer_rpk;
7694}
7695
7696int SSL_get_negotiated_client_cert_type(const SSL *s)
7697{
7698 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7699
7700 if (sc == NULL)
7701 return 0;
7702
7703 return sc->ext.client_cert_type;
7704}
7705
7706int SSL_get_negotiated_server_cert_type(const SSL *s)
7707{
7708 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7709
7710 if (sc == NULL)
7711 return 0;
7712
7713 return sc->ext.server_cert_type;
7714}
7715
7716static int validate_cert_type(const unsigned char *val, size_t len)
7717{
7718 size_t i;
7719 int saw_rpk = 0;
7720 int saw_x509 = 0;
7721
7722 if (val == NULL && len == 0)
7723 return 1;
7724
7725 if (val == NULL || len == 0)
7726 return 0;
7727
7728 for (i = 0; i < len; i++) {
7729 switch (val[i]) {
7730 case TLSEXT_cert_type_rpk:
7731 if (saw_rpk)
7732 return 0;
7733 saw_rpk = 1;
7734 break;
7735 case TLSEXT_cert_type_x509:
7736 if (saw_x509)
7737 return 0;
7738 saw_x509 = 1;
7739 break;
7740 case TLSEXT_cert_type_pgp:
7741 case TLSEXT_cert_type_1609dot2:
7742 default:
7743 return 0;
7744 }
7745 }
7746 return 1;
7747}
7748
7749static int set_cert_type(unsigned char **cert_type,
7750 size_t *cert_type_len,
7751 const unsigned char *val,
7752 size_t len)
7753{
7754 unsigned char *tmp = NULL;
7755
7756 if (!validate_cert_type(val, len))
7757 return 0;
7758
7759 if (val != NULL && (tmp = OPENSSL_memdup(val, len)) == NULL)
7760 return 0;
7761
7762 OPENSSL_free(*cert_type);
7763 *cert_type = tmp;
7764 *cert_type_len = len;
7765 return 1;
7766}
7767
7768int SSL_set1_client_cert_type(SSL *s, const unsigned char *val, size_t len)
7769{
7770 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7771
7772 return set_cert_type(&sc->client_cert_type, &sc->client_cert_type_len,
7773 val, len);
7774}
7775
7776int SSL_set1_server_cert_type(SSL *s, const unsigned char *val, size_t len)
7777{
7778 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7779
7780 return set_cert_type(&sc->server_cert_type, &sc->server_cert_type_len,
7781 val, len);
7782}
7783
7784int SSL_CTX_set1_client_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7785{
7786 return set_cert_type(&ctx->client_cert_type, &ctx->client_cert_type_len,
7787 val, len);
7788}
7789
7790int SSL_CTX_set1_server_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7791{
7792 return set_cert_type(&ctx->server_cert_type, &ctx->server_cert_type_len,
7793 val, len);
7794}
7795
7796int SSL_get0_client_cert_type(const SSL *s, unsigned char **t, size_t *len)
7797{
7798 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7799
7800 if (t == NULL || len == NULL)
7801 return 0;
7802
7803 *t = sc->client_cert_type;
7804 *len = sc->client_cert_type_len;
7805 return 1;
7806}
7807
7808int SSL_get0_server_cert_type(const SSL *s, unsigned char **t, size_t *len)
7809{
7810 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7811
7812 if (t == NULL || len == NULL)
7813 return 0;
7814
7815 *t = sc->server_cert_type;
7816 *len = sc->server_cert_type_len;
7817 return 1;
7818}
7819
7820int SSL_CTX_get0_client_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7821{
7822 if (t == NULL || len == NULL)
7823 return 0;
7824
7825 *t = ctx->client_cert_type;
7826 *len = ctx->client_cert_type_len;
7827 return 1;
7828}
7829
7830int SSL_CTX_get0_server_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7831{
7832 if (t == NULL || len == NULL)
7833 return 0;
7834
7835 *t = ctx->server_cert_type;
7836 *len = ctx->server_cert_type_len;
7837 return 1;
7838}
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