2 * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 * Copyright 2005 Nokia. All rights reserved.
6 * Licensed under the Apache License 2.0 (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
13 #include "ssl_local.h"
14 #include "internal/e_os.h"
15 #include <openssl/objects.h>
16 #include <openssl/x509v3.h>
17 #include <openssl/rand.h>
18 #include <openssl/ocsp.h>
19 #include <openssl/dh.h>
20 #include <openssl/engine.h>
21 #include <openssl/async.h>
22 #include <openssl/ct.h>
23 #include <openssl/trace.h>
24 #include <openssl/core_names.h>
25 #include "internal/cryptlib.h"
26 #include "internal/nelem.h"
27 #include "internal/refcount.h"
28 #include "internal/ktls.h"
29 #include "quic/quic_local.h"
31 static int ssl_undefined_function_3(SSL_CONNECTION *sc, unsigned char *r,
32 unsigned char *s, size_t t, size_t *u)
34 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
37 static int ssl_undefined_function_4(SSL_CONNECTION *sc, int r)
39 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
42 static size_t ssl_undefined_function_5(SSL_CONNECTION *sc, const char *r,
43 size_t s, unsigned char *t)
45 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
48 static int ssl_undefined_function_6(int r)
50 return ssl_undefined_function(NULL);
53 static int ssl_undefined_function_7(SSL_CONNECTION *sc, unsigned char *r,
54 size_t s, const char *t, size_t u,
55 const unsigned char *v, size_t w, int x)
57 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
60 static int ssl_undefined_function_8(SSL_CONNECTION *sc)
62 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
65 SSL3_ENC_METHOD ssl3_undef_enc_method = {
66 ssl_undefined_function_8,
67 ssl_undefined_function_3,
68 ssl_undefined_function_4,
69 ssl_undefined_function_5,
70 NULL, /* client_finished_label */
71 0, /* client_finished_label_len */
72 NULL, /* server_finished_label */
73 0, /* server_finished_label_len */
74 ssl_undefined_function_6,
75 ssl_undefined_function_7,
78 struct ssl_async_args {
82 enum { READFUNC, WRITEFUNC, OTHERFUNC } type;
84 int (*func_read) (SSL *, void *, size_t, size_t *);
85 int (*func_write) (SSL *, const void *, size_t, size_t *);
86 int (*func_other) (SSL *);
96 DANETLS_MATCHING_FULL, 0, NID_undef
99 DANETLS_MATCHING_2256, 1, NID_sha256
102 DANETLS_MATCHING_2512, 2, NID_sha512
106 static int dane_ctx_enable(struct dane_ctx_st *dctx)
108 const EVP_MD **mdevp;
110 uint8_t mdmax = DANETLS_MATCHING_LAST;
111 int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */
114 if (dctx->mdevp != NULL)
117 mdevp = OPENSSL_zalloc(n * sizeof(*mdevp));
118 mdord = OPENSSL_zalloc(n * sizeof(*mdord));
120 if (mdord == NULL || mdevp == NULL) {
126 /* Install default entries */
127 for (i = 0; i < OSSL_NELEM(dane_mds); ++i) {
130 if (dane_mds[i].nid == NID_undef ||
131 (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL)
133 mdevp[dane_mds[i].mtype] = md;
134 mdord[dane_mds[i].mtype] = dane_mds[i].ord;
144 static void dane_ctx_final(struct dane_ctx_st *dctx)
146 OPENSSL_free(dctx->mdevp);
149 OPENSSL_free(dctx->mdord);
154 static void tlsa_free(danetls_record *t)
158 OPENSSL_free(t->data);
159 EVP_PKEY_free(t->spki);
163 static void dane_final(SSL_DANE *dane)
165 sk_danetls_record_pop_free(dane->trecs, tlsa_free);
168 OSSL_STACK_OF_X509_free(dane->certs);
171 X509_free(dane->mcert);
179 * dane_copy - Copy dane configuration, sans verification state.
181 static int ssl_dane_dup(SSL_CONNECTION *to, SSL_CONNECTION *from)
186 if (!DANETLS_ENABLED(&from->dane))
189 num = sk_danetls_record_num(from->dane.trecs);
190 dane_final(&to->dane);
191 to->dane.flags = from->dane.flags;
192 to->dane.dctx = &SSL_CONNECTION_GET_CTX(to)->dane;
193 to->dane.trecs = sk_danetls_record_new_reserve(NULL, num);
195 if (to->dane.trecs == NULL) {
196 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
200 for (i = 0; i < num; ++i) {
201 danetls_record *t = sk_danetls_record_value(from->dane.trecs, i);
203 if (SSL_dane_tlsa_add(SSL_CONNECTION_GET_SSL(to), t->usage,
204 t->selector, t->mtype, t->data, t->dlen) <= 0)
210 static int dane_mtype_set(struct dane_ctx_st *dctx,
211 const EVP_MD *md, uint8_t mtype, uint8_t ord)
215 if (mtype == DANETLS_MATCHING_FULL && md != NULL) {
216 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL);
220 if (mtype > dctx->mdmax) {
221 const EVP_MD **mdevp;
223 int n = ((int)mtype) + 1;
225 mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp));
230 mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord));
235 /* Zero-fill any gaps */
236 for (i = dctx->mdmax + 1; i < mtype; ++i) {
244 dctx->mdevp[mtype] = md;
245 /* Coerce ordinal of disabled matching types to 0 */
246 dctx->mdord[mtype] = (md == NULL) ? 0 : ord;
251 static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype)
253 if (mtype > dane->dctx->mdmax)
255 return dane->dctx->mdevp[mtype];
258 static int dane_tlsa_add(SSL_DANE *dane,
261 uint8_t mtype, const unsigned char *data, size_t dlen)
264 const EVP_MD *md = NULL;
265 int ilen = (int)dlen;
269 if (dane->trecs == NULL) {
270 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_NOT_ENABLED);
274 if (ilen < 0 || dlen != (size_t)ilen) {
275 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DATA_LENGTH);
279 if (usage > DANETLS_USAGE_LAST) {
280 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE);
284 if (selector > DANETLS_SELECTOR_LAST) {
285 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_SELECTOR);
289 if (mtype != DANETLS_MATCHING_FULL) {
290 md = tlsa_md_get(dane, mtype);
292 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE);
297 if (md != NULL && dlen != (size_t)EVP_MD_get_size(md)) {
298 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH);
302 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_NULL_DATA);
306 if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL)
310 t->selector = selector;
312 t->data = OPENSSL_malloc(dlen);
313 if (t->data == NULL) {
317 memcpy(t->data, data, dlen);
320 /* Validate and cache full certificate or public key */
321 if (mtype == DANETLS_MATCHING_FULL) {
322 const unsigned char *p = data;
324 EVP_PKEY *pkey = NULL;
327 case DANETLS_SELECTOR_CERT:
328 if (!d2i_X509(&cert, &p, ilen) || p < data ||
329 dlen != (size_t)(p - data)) {
331 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
334 if (X509_get0_pubkey(cert) == NULL) {
336 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
340 if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
346 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
347 * records that contain full certificates of trust-anchors that are
348 * not present in the wire chain. For usage PKIX-TA(0), we augment
349 * the chain with untrusted Full(0) certificates from DNS, in case
350 * they are missing from the chain.
352 if ((dane->certs == NULL &&
353 (dane->certs = sk_X509_new_null()) == NULL) ||
354 !sk_X509_push(dane->certs, cert)) {
355 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
362 case DANETLS_SELECTOR_SPKI:
363 if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data ||
364 dlen != (size_t)(p - data)) {
366 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
371 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
372 * records that contain full bare keys of trust-anchors that are
373 * not present in the wire chain.
375 if (usage == DANETLS_USAGE_DANE_TA)
384 * Find the right insertion point for the new record.
386 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
387 * they can be processed first, as they require no chain building, and no
388 * expiration or hostname checks. Because DANE-EE(3) is numerically
389 * largest, this is accomplished via descending sort by "usage".
391 * We also sort in descending order by matching ordinal to simplify
392 * the implementation of digest agility in the verification code.
394 * The choice of order for the selector is not significant, so we
395 * use the same descending order for consistency.
397 num = sk_danetls_record_num(dane->trecs);
398 for (i = 0; i < num; ++i) {
399 danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
401 if (rec->usage > usage)
403 if (rec->usage < usage)
405 if (rec->selector > selector)
407 if (rec->selector < selector)
409 if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
414 if (!sk_danetls_record_insert(dane->trecs, t, i)) {
416 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
419 dane->umask |= DANETLS_USAGE_BIT(usage);
425 * Return 0 if there is only one version configured and it was disabled
426 * at configure time. Return 1 otherwise.
428 static int ssl_check_allowed_versions(int min_version, int max_version,
431 int minisdtls = 0, maxisdtls = 0;
433 /* Figure out if we're doing DTLS versions or TLS versions */
434 if (min_version == DTLS1_BAD_VER
435 || min_version >> 8 == DTLS1_VERSION_MAJOR)
437 if (max_version == DTLS1_BAD_VER
438 || max_version >> 8 == DTLS1_VERSION_MAJOR)
440 /* A wildcard version of 0 could be DTLS or TLS. */
441 if ((minisdtls && !maxisdtls && max_version != 0)
442 || (maxisdtls && !minisdtls && min_version != 0)) {
443 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
447 if (minisdtls || maxisdtls) {
448 /* Do DTLS version checks. */
449 if (min_version == 0)
450 /* Ignore DTLS1_BAD_VER */
451 min_version = DTLS1_VERSION;
452 if (max_version == 0)
453 max_version = DTLS1_2_VERSION;
454 #ifdef OPENSSL_NO_DTLS1_2
455 if (max_version == DTLS1_2_VERSION)
456 max_version = DTLS1_VERSION;
458 #ifdef OPENSSL_NO_DTLS1
459 if (min_version == DTLS1_VERSION)
460 min_version = DTLS1_2_VERSION;
462 /* Done massaging versions; do the check. */
464 #ifdef OPENSSL_NO_DTLS1
465 || (DTLS_VERSION_GE(min_version, DTLS1_VERSION)
466 && DTLS_VERSION_GE(DTLS1_VERSION, max_version))
468 #ifdef OPENSSL_NO_DTLS1_2
469 || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION)
470 && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version))
475 /* Regular TLS version checks. */
476 if (min_version == 0)
477 min_version = is_quic ? TLS1_3_VERSION : SSL3_VERSION;
478 if (max_version == 0)
479 max_version = TLS1_3_VERSION;
480 #ifdef OPENSSL_NO_TLS1_3
481 if (max_version == TLS1_3_VERSION)
482 max_version = TLS1_2_VERSION;
484 #ifdef OPENSSL_NO_TLS1_2
485 if (max_version == TLS1_2_VERSION)
486 max_version = TLS1_1_VERSION;
488 #ifdef OPENSSL_NO_TLS1_1
489 if (max_version == TLS1_1_VERSION)
490 max_version = TLS1_VERSION;
492 #ifdef OPENSSL_NO_TLS1
493 if (max_version == TLS1_VERSION)
494 max_version = SSL3_VERSION;
496 #ifdef OPENSSL_NO_SSL3
497 if (min_version == SSL3_VERSION)
498 min_version = TLS1_VERSION;
500 #ifdef OPENSSL_NO_TLS1
501 if (min_version == TLS1_VERSION)
502 min_version = TLS1_1_VERSION;
504 #ifdef OPENSSL_NO_TLS1_1
505 if (min_version == TLS1_1_VERSION)
506 min_version = TLS1_2_VERSION;
508 #ifdef OPENSSL_NO_TLS1_2
509 if (min_version == TLS1_2_VERSION)
510 min_version = TLS1_3_VERSION;
512 /* Done massaging versions; do the check. */
514 #ifdef OPENSSL_NO_SSL3
515 || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version)
517 #ifdef OPENSSL_NO_TLS1
518 || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version)
520 #ifdef OPENSSL_NO_TLS1_1
521 || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version)
523 #ifdef OPENSSL_NO_TLS1_2
524 || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version)
526 #ifdef OPENSSL_NO_TLS1_3
527 || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version)
535 #if defined(__TANDEM) && defined(OPENSSL_VPROC)
537 * Define a VPROC function for HP NonStop build ssl library.
538 * This is used by platform version identification tools.
539 * Do not inline this procedure or make it static.
541 # define OPENSSL_VPROC_STRING_(x) x##_SSL
542 # define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
543 # define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
544 void OPENSSL_VPROC_FUNC(void) {}
547 static int clear_record_layer(SSL_CONNECTION *s)
551 /* We try and reset both record layers even if one fails */
553 ret = ssl_set_new_record_layer(s,
554 SSL_CONNECTION_IS_DTLS(s) ? DTLS_ANY_VERSION
556 OSSL_RECORD_DIRECTION_READ,
557 OSSL_RECORD_PROTECTION_LEVEL_NONE, NULL, 0,
558 NULL, 0, NULL, 0, NULL, 0, NULL, 0,
559 NID_undef, NULL, NULL, NULL);
561 ret &= ssl_set_new_record_layer(s,
562 SSL_CONNECTION_IS_DTLS(s) ? DTLS_ANY_VERSION
564 OSSL_RECORD_DIRECTION_WRITE,
565 OSSL_RECORD_PROTECTION_LEVEL_NONE, NULL, 0,
566 NULL, 0, NULL, 0, NULL, 0, NULL, 0,
567 NID_undef, NULL, NULL, NULL);
569 /* SSLfatal already called in the event of failure */
573 int SSL_clear(SSL *s)
575 if (s->method == NULL) {
576 ERR_raise(ERR_LIB_SSL, SSL_R_NO_METHOD_SPECIFIED);
580 return s->method->ssl_reset(s);
583 int ossl_ssl_connection_reset(SSL *s)
585 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
590 if (ssl_clear_bad_session(sc)) {
591 SSL_SESSION_free(sc->session);
594 SSL_SESSION_free(sc->psksession);
595 sc->psksession = NULL;
596 OPENSSL_free(sc->psksession_id);
597 sc->psksession_id = NULL;
598 sc->psksession_id_len = 0;
599 sc->hello_retry_request = 0;
600 sc->sent_tickets = 0;
606 if (sc->renegotiate) {
607 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
611 ossl_statem_clear(sc);
613 /* TODO(QUIC): Version handling not yet clear */
614 sc->version = s->method->version;
615 sc->client_version = sc->version;
616 sc->rwstate = SSL_NOTHING;
618 BUF_MEM_free(sc->init_buf);
620 sc->first_packet = 0;
622 sc->key_update = SSL_KEY_UPDATE_NONE;
623 memset(sc->ext.compress_certificate_from_peer, 0,
624 sizeof(sc->ext.compress_certificate_from_peer));
625 sc->ext.compress_certificate_sent = 0;
627 EVP_MD_CTX_free(sc->pha_dgst);
630 /* Reset DANE verification result state */
633 X509_free(sc->dane.mcert);
634 sc->dane.mcert = NULL;
635 sc->dane.mtlsa = NULL;
637 /* Clear the verification result peername */
638 X509_VERIFY_PARAM_move_peername(sc->param, NULL);
640 /* Clear any shared connection state */
641 OPENSSL_free(sc->shared_sigalgs);
642 sc->shared_sigalgs = NULL;
643 sc->shared_sigalgslen = 0;
646 * Check to see if we were changed into a different method, if so, revert
649 if (s->method != s->defltmeth) {
650 s->method->ssl_deinit(s);
651 s->method = s->defltmeth;
652 if (!s->method->ssl_init(s))
655 if (!s->method->ssl_clear(s))
659 RECORD_LAYER_clear(&sc->rlayer);
660 BIO_free(sc->rlayer.rrlnext);
661 sc->rlayer.rrlnext = NULL;
663 if (!clear_record_layer(sc))
669 #ifndef OPENSSL_NO_DEPRECATED_3_0
670 /** Used to change an SSL_CTXs default SSL method type */
671 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
673 STACK_OF(SSL_CIPHER) *sk;
675 if (IS_QUIC_CTX(ctx)) {
676 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
682 if (!SSL_CTX_set_ciphersuites(ctx, OSSL_default_ciphersuites())) {
683 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
686 sk = ssl_create_cipher_list(ctx,
687 ctx->tls13_ciphersuites,
689 &(ctx->cipher_list_by_id),
690 OSSL_default_cipher_list(), ctx->cert);
691 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
692 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
699 SSL *SSL_new(SSL_CTX *ctx)
702 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_CTX);
705 if (ctx->method == NULL) {
706 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
709 return ctx->method->ssl_new(ctx);
712 int ossl_ssl_init(SSL *ssl, SSL_CTX *ctx, const SSL_METHOD *method, int type)
716 ssl->lock = CRYPTO_THREAD_lock_new();
717 if (ssl->lock == NULL)
720 if (!CRYPTO_NEW_REF(&ssl->references, 1)) {
721 CRYPTO_THREAD_lock_free(ssl->lock);
725 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, ssl, &ssl->ex_data)) {
726 CRYPTO_THREAD_lock_free(ssl->lock);
727 CRYPTO_FREE_REF(&ssl->references);
735 ssl->defltmeth = ssl->method = method;
740 SSL *ossl_ssl_connection_new_int(SSL_CTX *ctx, const SSL_METHOD *method)
745 s = OPENSSL_zalloc(sizeof(*s));
750 if (!ossl_ssl_init(ssl, ctx, method, SSL_TYPE_SSL_CONNECTION)) {
757 RECORD_LAYER_init(&s->rlayer, s);
759 s->options = ctx->options;
761 s->dane.flags = ctx->dane.flags;
762 if (method->version == ctx->method->version) {
763 s->min_proto_version = ctx->min_proto_version;
764 s->max_proto_version = ctx->max_proto_version;
767 s->min_proto_version = ctx->min_proto_version;
768 if (IS_QUIC_CTX(ctx) && s->min_proto_version < TLS1_3_VERSION)
769 s->min_proto_version = TLS1_3_VERSION;
771 s->max_proto_version = ctx->max_proto_version;
772 if (IS_QUIC_CTX(ctx) && s->max_proto_version < TLS1_3_VERSION)
773 s->max_proto_version = 0;
776 s->max_cert_list = ctx->max_cert_list;
778 if (!IS_QUIC_CTX(ctx)) {
779 s->max_early_data = ctx->max_early_data;
780 s->recv_max_early_data = ctx->recv_max_early_data;
783 s->num_tickets = ctx->num_tickets;
784 s->pha_enabled = ctx->pha_enabled;
786 /* Shallow copy of the ciphersuites stack */
787 s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
788 if (s->tls13_ciphersuites == NULL)
792 * Earlier library versions used to copy the pointer to the CERT, not
793 * its contents; only when setting new parameters for the per-SSL
794 * copy, ssl_cert_new would be called (and the direct reference to
795 * the per-SSL_CTX settings would be lost, but those still were
796 * indirectly accessed for various purposes, and for that reason they
797 * used to be known as s->ctx->default_cert). Now we don't look at the
798 * SSL_CTX's CERT after having duplicated it once.
800 s->cert = ssl_cert_dup(ctx->cert);
804 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
805 s->msg_callback = ctx->msg_callback;
806 s->msg_callback_arg = ctx->msg_callback_arg;
807 s->verify_mode = ctx->verify_mode;
808 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
809 if (!IS_QUIC_CTX(ctx)) {
810 s->rlayer.record_padding_cb = ctx->record_padding_cb;
811 s->rlayer.record_padding_arg = ctx->record_padding_arg;
812 s->rlayer.block_padding = ctx->block_padding;
814 s->sid_ctx_length = ctx->sid_ctx_length;
815 if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
817 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
818 s->verify_callback = ctx->default_verify_callback;
819 s->generate_session_id = ctx->generate_session_id;
821 s->param = X509_VERIFY_PARAM_new();
822 if (s->param == NULL)
824 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
825 s->quiet_shutdown = IS_QUIC_CTX(ctx) ? 0 : ctx->quiet_shutdown;
827 if (!IS_QUIC_CTX(ctx))
828 s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
830 s->max_send_fragment = ctx->max_send_fragment;
831 s->split_send_fragment = ctx->split_send_fragment;
832 s->max_pipelines = ctx->max_pipelines;
833 s->rlayer.default_read_buf_len = ctx->default_read_buf_len;
836 s->ext.debug_arg = NULL;
837 s->ext.ticket_expected = 0;
838 s->ext.status_type = ctx->ext.status_type;
839 s->ext.status_expected = 0;
840 s->ext.ocsp.ids = NULL;
841 s->ext.ocsp.exts = NULL;
842 s->ext.ocsp.resp = NULL;
843 s->ext.ocsp.resp_len = 0;
845 s->session_ctx = ctx;
846 if (ctx->ext.ecpointformats) {
847 s->ext.ecpointformats =
848 OPENSSL_memdup(ctx->ext.ecpointformats,
849 ctx->ext.ecpointformats_len);
850 if (!s->ext.ecpointformats) {
851 s->ext.ecpointformats_len = 0;
854 s->ext.ecpointformats_len =
855 ctx->ext.ecpointformats_len;
857 if (ctx->ext.supportedgroups) {
858 s->ext.supportedgroups =
859 OPENSSL_memdup(ctx->ext.supportedgroups,
860 ctx->ext.supportedgroups_len
861 * sizeof(*ctx->ext.supportedgroups));
862 if (!s->ext.supportedgroups) {
863 s->ext.supportedgroups_len = 0;
866 s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
869 #ifndef OPENSSL_NO_NEXTPROTONEG
873 if (ctx->ext.alpn != NULL) {
874 s->ext.alpn = OPENSSL_malloc(ctx->ext.alpn_len);
875 if (s->ext.alpn == NULL) {
879 memcpy(s->ext.alpn, ctx->ext.alpn, ctx->ext.alpn_len);
880 s->ext.alpn_len = ctx->ext.alpn_len;
883 s->verified_chain = NULL;
884 s->verify_result = X509_V_OK;
886 s->default_passwd_callback = ctx->default_passwd_callback;
887 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
889 s->key_update = SSL_KEY_UPDATE_NONE;
891 if (!IS_QUIC_CTX(ctx)) {
892 s->allow_early_data_cb = ctx->allow_early_data_cb;
893 s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
896 if (!method->ssl_init(ssl))
899 s->server = (method->ssl_accept == ssl_undefined_function) ? 0 : 1;
901 if (!method->ssl_reset(ssl))
904 #ifndef OPENSSL_NO_PSK
905 s->psk_client_callback = ctx->psk_client_callback;
906 s->psk_server_callback = ctx->psk_server_callback;
908 s->psk_find_session_cb = ctx->psk_find_session_cb;
909 s->psk_use_session_cb = ctx->psk_use_session_cb;
911 s->async_cb = ctx->async_cb;
912 s->async_cb_arg = ctx->async_cb_arg;
916 #ifndef OPENSSL_NO_COMP_ALG
917 memcpy(s->cert_comp_prefs, ctx->cert_comp_prefs, sizeof(s->cert_comp_prefs));
919 if (ctx->client_cert_type != NULL) {
920 s->client_cert_type = OPENSSL_memdup(ctx->client_cert_type,
921 ctx->client_cert_type_len);
922 if (s->client_cert_type == NULL)
924 s->client_cert_type_len = ctx->client_cert_type_len;
926 if (ctx->server_cert_type != NULL) {
927 s->server_cert_type = OPENSSL_memdup(ctx->server_cert_type,
928 ctx->server_cert_type_len);
929 if (s->server_cert_type == NULL)
931 s->server_cert_type_len = ctx->server_cert_type_len;
934 #ifndef OPENSSL_NO_CT
935 if (!SSL_set_ct_validation_callback(ssl, ctx->ct_validation_callback,
936 ctx->ct_validation_callback_arg))
940 s->ssl_pkey_num = SSL_PKEY_NUM + ctx->sigalg_list_len;
943 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
946 ERR_raise(ERR_LIB_SSL, ERR_R_ASN1_LIB);
949 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
955 SSL *ossl_ssl_connection_new(SSL_CTX *ctx)
957 return ossl_ssl_connection_new_int(ctx, ctx->method);
960 int SSL_is_dtls(const SSL *s)
962 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
964 #ifndef OPENSSL_NO_QUIC
965 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
972 return SSL_CONNECTION_IS_DTLS(sc) ? 1 : 0;
975 int SSL_is_tls(const SSL *s)
977 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
979 #ifndef OPENSSL_NO_QUIC
980 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
987 return SSL_CONNECTION_IS_DTLS(sc) ? 0 : 1;
990 int SSL_is_quic(const SSL *s)
992 #ifndef OPENSSL_NO_QUIC
993 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
999 int SSL_up_ref(SSL *s)
1003 if (CRYPTO_UP_REF(&s->references, &i) <= 0)
1006 REF_PRINT_COUNT("SSL", s);
1007 REF_ASSERT_ISNT(i < 2);
1008 return ((i > 1) ? 1 : 0);
1011 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
1012 unsigned int sid_ctx_len)
1014 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
1015 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
1018 ctx->sid_ctx_length = sid_ctx_len;
1019 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
1024 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
1025 unsigned int sid_ctx_len)
1027 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1032 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
1033 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
1036 sc->sid_ctx_length = sid_ctx_len;
1037 memcpy(sc->sid_ctx, sid_ctx, sid_ctx_len);
1042 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
1044 if (!CRYPTO_THREAD_write_lock(ctx->lock))
1046 ctx->generate_session_id = cb;
1047 CRYPTO_THREAD_unlock(ctx->lock);
1051 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
1053 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1055 if (sc == NULL || !CRYPTO_THREAD_write_lock(ssl->lock))
1057 sc->generate_session_id = cb;
1058 CRYPTO_THREAD_unlock(ssl->lock);
1062 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
1063 unsigned int id_len)
1066 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
1067 * we can "construct" a session to give us the desired check - i.e. to
1068 * find if there's a session in the hash table that would conflict with
1069 * any new session built out of this id/id_len and the ssl_version in use
1073 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
1075 if (sc == NULL || id_len > sizeof(r.session_id))
1078 r.ssl_version = sc->version;
1079 r.session_id_length = id_len;
1080 memcpy(r.session_id, id, id_len);
1082 if (!CRYPTO_THREAD_read_lock(sc->session_ctx->lock))
1084 p = lh_SSL_SESSION_retrieve(sc->session_ctx->sessions, &r);
1085 CRYPTO_THREAD_unlock(sc->session_ctx->lock);
1089 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
1091 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
1094 int SSL_set_purpose(SSL *s, int purpose)
1096 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1101 return X509_VERIFY_PARAM_set_purpose(sc->param, purpose);
1104 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
1106 return X509_VERIFY_PARAM_set_trust(s->param, trust);
1109 int SSL_set_trust(SSL *s, int trust)
1111 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1116 return X509_VERIFY_PARAM_set_trust(sc->param, trust);
1119 int SSL_set1_host(SSL *s, const char *hostname)
1121 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1126 /* If a hostname is provided and parses as an IP address,
1127 * treat it as such. */
1128 if (hostname != NULL
1129 && X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname) == 1)
1132 return X509_VERIFY_PARAM_set1_host(sc->param, hostname, 0);
1135 int SSL_add1_host(SSL *s, const char *hostname)
1137 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1142 /* If a hostname is provided and parses as an IP address,
1143 * treat it as such. */
1146 ASN1_OCTET_STRING *ip;
1149 ip = a2i_IPADDRESS(hostname);
1151 /* We didn't want it; only to check if it *is* an IP address */
1152 ASN1_OCTET_STRING_free(ip);
1154 old_ip = X509_VERIFY_PARAM_get1_ip_asc(sc->param);
1157 OPENSSL_free(old_ip);
1158 /* There can be only one IP address */
1162 return X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname);
1166 return X509_VERIFY_PARAM_add1_host(sc->param, hostname, 0);
1169 void SSL_set_hostflags(SSL *s, unsigned int flags)
1171 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1176 X509_VERIFY_PARAM_set_hostflags(sc->param, flags);
1179 const char *SSL_get0_peername(SSL *s)
1181 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1186 return X509_VERIFY_PARAM_get0_peername(sc->param);
1189 int SSL_CTX_dane_enable(SSL_CTX *ctx)
1191 return dane_ctx_enable(&ctx->dane);
1194 unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
1196 unsigned long orig = ctx->dane.flags;
1198 ctx->dane.flags |= flags;
1202 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
1204 unsigned long orig = ctx->dane.flags;
1206 ctx->dane.flags &= ~flags;
1210 int SSL_dane_enable(SSL *s, const char *basedomain)
1213 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1219 if (s->ctx->dane.mdmax == 0) {
1220 ERR_raise(ERR_LIB_SSL, SSL_R_CONTEXT_NOT_DANE_ENABLED);
1223 if (dane->trecs != NULL) {
1224 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_ALREADY_ENABLED);
1229 * Default SNI name. This rejects empty names, while set1_host below
1230 * accepts them and disables hostname checks. To avoid side-effects with
1231 * invalid input, set the SNI name first.
1233 if (sc->ext.hostname == NULL) {
1234 if (!SSL_set_tlsext_host_name(s, basedomain)) {
1235 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1240 /* Primary RFC6125 reference identifier */
1241 if (!X509_VERIFY_PARAM_set1_host(sc->param, basedomain, 0)) {
1242 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1248 dane->dctx = &s->ctx->dane;
1249 dane->trecs = sk_danetls_record_new_null();
1251 if (dane->trecs == NULL) {
1252 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
1258 unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
1261 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1266 orig = sc->dane.flags;
1268 sc->dane.flags |= flags;
1272 unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
1275 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1280 orig = sc->dane.flags;
1282 sc->dane.flags &= ~flags;
1286 int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
1289 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1296 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1300 *mcert = dane->mcert;
1302 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
1307 int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
1308 uint8_t *mtype, const unsigned char **data, size_t *dlen)
1311 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1318 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1322 *usage = dane->mtlsa->usage;
1324 *selector = dane->mtlsa->selector;
1326 *mtype = dane->mtlsa->mtype;
1328 *data = dane->mtlsa->data;
1330 *dlen = dane->mtlsa->dlen;
1335 SSL_DANE *SSL_get0_dane(SSL *s)
1337 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1345 int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
1346 uint8_t mtype, const unsigned char *data, size_t dlen)
1348 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1353 return dane_tlsa_add(&sc->dane, usage, selector, mtype, data, dlen);
1356 int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
1359 return dane_mtype_set(&ctx->dane, md, mtype, ord);
1362 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
1364 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
1367 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
1369 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1374 return X509_VERIFY_PARAM_set1(sc->param, vpm);
1377 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
1382 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
1384 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1392 void SSL_certs_clear(SSL *s)
1394 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1399 ssl_cert_clear_certs(sc->cert);
1402 void SSL_free(SSL *s)
1408 CRYPTO_DOWN_REF(&s->references, &i);
1409 REF_PRINT_COUNT("SSL", s);
1412 REF_ASSERT_ISNT(i < 0);
1414 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1416 if (s->method != NULL)
1417 s->method->ssl_free(s);
1419 SSL_CTX_free(s->ctx);
1420 CRYPTO_THREAD_lock_free(s->lock);
1421 CRYPTO_FREE_REF(&s->references);
1426 void ossl_ssl_connection_free(SSL *ssl)
1430 s = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
1434 X509_VERIFY_PARAM_free(s->param);
1435 dane_final(&s->dane);
1437 /* Ignore return value */
1438 ssl_free_wbio_buffer(s);
1440 RECORD_LAYER_clear(&s->rlayer);
1442 BUF_MEM_free(s->init_buf);
1444 /* add extra stuff */
1445 sk_SSL_CIPHER_free(s->cipher_list);
1446 sk_SSL_CIPHER_free(s->cipher_list_by_id);
1447 sk_SSL_CIPHER_free(s->tls13_ciphersuites);
1448 sk_SSL_CIPHER_free(s->peer_ciphers);
1450 /* Make the next call work :-) */
1451 if (s->session != NULL) {
1452 ssl_clear_bad_session(s);
1453 SSL_SESSION_free(s->session);
1455 SSL_SESSION_free(s->psksession);
1456 OPENSSL_free(s->psksession_id);
1458 ssl_cert_free(s->cert);
1459 OPENSSL_free(s->shared_sigalgs);
1460 /* Free up if allocated */
1462 OPENSSL_free(s->ext.hostname);
1463 SSL_CTX_free(s->session_ctx);
1464 OPENSSL_free(s->ext.ecpointformats);
1465 OPENSSL_free(s->ext.peer_ecpointformats);
1466 OPENSSL_free(s->ext.supportedgroups);
1467 OPENSSL_free(s->ext.peer_supportedgroups);
1468 sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
1469 #ifndef OPENSSL_NO_OCSP
1470 sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
1472 #ifndef OPENSSL_NO_CT
1473 SCT_LIST_free(s->scts);
1474 OPENSSL_free(s->ext.scts);
1476 OPENSSL_free(s->ext.ocsp.resp);
1477 OPENSSL_free(s->ext.alpn);
1478 OPENSSL_free(s->ext.tls13_cookie);
1479 if (s->clienthello != NULL)
1480 OPENSSL_free(s->clienthello->pre_proc_exts);
1481 OPENSSL_free(s->clienthello);
1482 OPENSSL_free(s->pha_context);
1483 EVP_MD_CTX_free(s->pha_dgst);
1485 sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
1486 sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
1488 OPENSSL_free(s->client_cert_type);
1489 OPENSSL_free(s->server_cert_type);
1491 OSSL_STACK_OF_X509_free(s->verified_chain);
1493 if (ssl->method != NULL)
1494 ssl->method->ssl_deinit(ssl);
1496 ASYNC_WAIT_CTX_free(s->waitctx);
1498 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1499 OPENSSL_free(s->ext.npn);
1502 #ifndef OPENSSL_NO_SRTP
1503 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
1507 * We do this late. We want to ensure that any other references we held to
1508 * these BIOs are freed first *before* we call BIO_free_all(), because
1509 * BIO_free_all() will only free each BIO in the chain if the number of
1510 * references to the first BIO have dropped to 0
1512 BIO_free_all(s->wbio);
1514 BIO_free_all(s->rbio);
1516 OPENSSL_free(s->s3.tmp.valid_flags);
1519 void SSL_set0_rbio(SSL *s, BIO *rbio)
1521 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1523 #ifndef OPENSSL_NO_QUIC
1525 ossl_quic_conn_set0_net_rbio(s, rbio);
1533 BIO_free_all(sc->rbio);
1535 sc->rlayer.rrlmethod->set1_bio(sc->rlayer.rrl, sc->rbio);
1538 void SSL_set0_wbio(SSL *s, BIO *wbio)
1540 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1542 #ifndef OPENSSL_NO_QUIC
1544 ossl_quic_conn_set0_net_wbio(s, wbio);
1553 * If the output buffering BIO is still in place, remove it
1555 if (sc->bbio != NULL)
1556 sc->wbio = BIO_pop(sc->wbio);
1558 BIO_free_all(sc->wbio);
1561 /* Re-attach |bbio| to the new |wbio|. */
1562 if (sc->bbio != NULL)
1563 sc->wbio = BIO_push(sc->bbio, sc->wbio);
1565 sc->rlayer.wrlmethod->set1_bio(sc->rlayer.wrl, sc->wbio);
1568 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1571 * For historical reasons, this function has many different cases in
1572 * ownership handling.
1575 /* If nothing has changed, do nothing */
1576 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1580 * If the two arguments are equal then one fewer reference is granted by the
1581 * caller than we want to take
1583 if (rbio != NULL && rbio == wbio)
1587 * If only the wbio is changed only adopt one reference.
1589 if (rbio == SSL_get_rbio(s)) {
1590 SSL_set0_wbio(s, wbio);
1594 * There is an asymmetry here for historical reasons. If only the rbio is
1595 * changed AND the rbio and wbio were originally different, then we only
1596 * adopt one reference.
1598 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1599 SSL_set0_rbio(s, rbio);
1603 /* Otherwise, adopt both references. */
1604 SSL_set0_rbio(s, rbio);
1605 SSL_set0_wbio(s, wbio);
1608 BIO *SSL_get_rbio(const SSL *s)
1610 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1612 #ifndef OPENSSL_NO_QUIC
1614 return ossl_quic_conn_get_net_rbio(s);
1623 BIO *SSL_get_wbio(const SSL *s)
1625 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1627 #ifndef OPENSSL_NO_QUIC
1629 return ossl_quic_conn_get_net_wbio(s);
1635 if (sc->bbio != NULL) {
1637 * If |bbio| is active, the true caller-configured BIO is its
1640 return BIO_next(sc->bbio);
1645 int SSL_get_fd(const SSL *s)
1647 return SSL_get_rfd(s);
1650 int SSL_get_rfd(const SSL *s)
1655 b = SSL_get_rbio(s);
1656 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1658 BIO_get_fd(r, &ret);
1662 int SSL_get_wfd(const SSL *s)
1667 b = SSL_get_wbio(s);
1668 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1670 BIO_get_fd(r, &ret);
1674 #ifndef OPENSSL_NO_SOCK
1675 int SSL_set_fd(SSL *s, int fd)
1680 bio = BIO_new(IS_QUIC_SSL(s) ? BIO_s_datagram() : BIO_s_socket());
1683 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1686 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1687 SSL_set_bio(s, bio, bio);
1688 #ifndef OPENSSL_NO_KTLS
1690 * The new socket is created successfully regardless of ktls_enable.
1691 * ktls_enable doesn't change any functionality of the socket, except
1692 * changing the setsockopt to enable the processing of ktls_start.
1693 * Thus, it is not a problem to call it for non-TLS sockets.
1696 #endif /* OPENSSL_NO_KTLS */
1702 int SSL_set_wfd(SSL *s, int fd)
1704 BIO *rbio = SSL_get_rbio(s);
1705 int desired_type = IS_QUIC_SSL(s) ? BIO_TYPE_DGRAM : BIO_TYPE_SOCKET;
1707 if (rbio == NULL || BIO_method_type(rbio) != desired_type
1708 || (int)BIO_get_fd(rbio, NULL) != fd) {
1709 BIO *bio = BIO_new(IS_QUIC_SSL(s) ? BIO_s_datagram() : BIO_s_socket());
1712 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1715 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1716 SSL_set0_wbio(s, bio);
1717 #ifndef OPENSSL_NO_KTLS
1719 * The new socket is created successfully regardless of ktls_enable.
1720 * ktls_enable doesn't change any functionality of the socket, except
1721 * changing the setsockopt to enable the processing of ktls_start.
1722 * Thus, it is not a problem to call it for non-TLS sockets.
1725 #endif /* OPENSSL_NO_KTLS */
1728 SSL_set0_wbio(s, rbio);
1733 int SSL_set_rfd(SSL *s, int fd)
1735 BIO *wbio = SSL_get_wbio(s);
1736 int desired_type = IS_QUIC_SSL(s) ? BIO_TYPE_DGRAM : BIO_TYPE_SOCKET;
1738 if (wbio == NULL || BIO_method_type(wbio) != desired_type
1739 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
1740 BIO *bio = BIO_new(IS_QUIC_SSL(s) ? BIO_s_datagram() : BIO_s_socket());
1743 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1746 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1747 SSL_set0_rbio(s, bio);
1750 SSL_set0_rbio(s, wbio);
1757 /* return length of latest Finished message we sent, copy to 'buf' */
1758 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
1761 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1766 ret = sc->s3.tmp.finish_md_len;
1769 memcpy(buf, sc->s3.tmp.finish_md, count);
1773 /* return length of latest Finished message we expected, copy to 'buf' */
1774 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
1777 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1782 ret = sc->s3.tmp.peer_finish_md_len;
1785 memcpy(buf, sc->s3.tmp.peer_finish_md, count);
1789 int SSL_get_verify_mode(const SSL *s)
1791 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1796 return sc->verify_mode;
1799 int SSL_get_verify_depth(const SSL *s)
1801 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1806 return X509_VERIFY_PARAM_get_depth(sc->param);
1809 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
1810 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1815 return sc->verify_callback;
1818 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
1820 return ctx->verify_mode;
1823 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
1825 return X509_VERIFY_PARAM_get_depth(ctx->param);
1828 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
1829 return ctx->default_verify_callback;
1832 void SSL_set_verify(SSL *s, int mode,
1833 int (*callback) (int ok, X509_STORE_CTX *ctx))
1835 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1840 sc->verify_mode = mode;
1841 if (callback != NULL)
1842 sc->verify_callback = callback;
1845 void SSL_set_verify_depth(SSL *s, int depth)
1847 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1852 X509_VERIFY_PARAM_set_depth(sc->param, depth);
1855 void SSL_set_read_ahead(SSL *s, int yes)
1857 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1858 OSSL_PARAM options[2], *opts = options;
1860 if (sc == NULL || IS_QUIC_SSL(s))
1863 RECORD_LAYER_set_read_ahead(&sc->rlayer, yes);
1865 *opts++ = OSSL_PARAM_construct_int(OSSL_LIBSSL_RECORD_LAYER_PARAM_READ_AHEAD,
1866 &sc->rlayer.read_ahead);
1867 *opts = OSSL_PARAM_construct_end();
1869 /* Ignore return value */
1870 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
1873 int SSL_get_read_ahead(const SSL *s)
1875 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1877 if (sc == NULL || IS_QUIC_SSL(s))
1880 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
1883 int SSL_pending(const SSL *s)
1885 size_t pending = s->method->ssl_pending(s);
1888 * SSL_pending cannot work properly if read-ahead is enabled
1889 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1890 * impossible to fix since SSL_pending cannot report errors that may be
1891 * observed while scanning the new data. (Note that SSL_pending() is
1892 * often used as a boolean value, so we'd better not return -1.)
1894 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1895 * we just return INT_MAX.
1897 return pending < INT_MAX ? (int)pending : INT_MAX;
1900 int SSL_has_pending(const SSL *s)
1902 #ifndef OPENSSL_NO_QUIC
1903 const QUIC_CONNECTION *qc = QUIC_CONNECTION_FROM_SSL(s);
1907 * Similar to SSL_pending() but returns a 1 to indicate that we have
1908 * processed or unprocessed data available or 0 otherwise (as opposed to the
1909 * number of bytes available). Unlike SSL_pending() this will take into
1910 * account read_ahead data. A 1 return simply indicates that we have data.
1911 * That data may not result in any application data, or we may fail to parse
1912 * the records for some reason.
1914 const SSL_CONNECTION *sc;
1916 #ifndef OPENSSL_NO_QUIC
1918 return ossl_quic_has_pending(s);
1921 sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1923 #ifndef OPENSSL_NO_QUIC
1925 return ossl_quic_has_pending(qc);
1928 /* Check buffered app data if any first */
1929 if (SSL_CONNECTION_IS_DTLS(sc)) {
1933 iter = pqueue_iterator(sc->rlayer.d->buffered_app_data.q);
1934 while ((item = pqueue_next(&iter)) != NULL) {
1936 if (rdata->length > 0)
1941 if (RECORD_LAYER_processed_read_pending(&sc->rlayer))
1944 return RECORD_LAYER_read_pending(&sc->rlayer);
1947 X509 *SSL_get1_peer_certificate(const SSL *s)
1949 X509 *r = SSL_get0_peer_certificate(s);
1957 X509 *SSL_get0_peer_certificate(const SSL *s)
1959 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1964 if (sc->session == NULL)
1967 return sc->session->peer;
1970 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
1973 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1978 if (sc->session == NULL)
1981 r = sc->session->peer_chain;
1984 * If we are a client, cert_chain includes the peer's own certificate; if
1985 * we are a server, it does not.
1992 * Now in theory, since the calling process own 't' it should be safe to
1993 * modify. We need to be able to read f without being hassled
1995 int SSL_copy_session_id(SSL *t, const SSL *f)
1998 /* TODO(QUIC): Not allowed for QUIC currently. */
1999 SSL_CONNECTION *tsc = SSL_CONNECTION_FROM_SSL_ONLY(t);
2000 const SSL_CONNECTION *fsc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(f);
2002 if (tsc == NULL || fsc == NULL)
2005 /* Do we need to do SSL locking? */
2006 if (!SSL_set_session(t, SSL_get_session(f))) {
2011 * what if we are setup for one protocol version but want to talk another
2013 if (t->method != f->method) {
2014 t->method->ssl_deinit(t);
2015 t->method = f->method;
2016 if (t->method->ssl_init(t) == 0)
2020 CRYPTO_UP_REF(&fsc->cert->references, &i);
2021 ssl_cert_free(tsc->cert);
2022 tsc->cert = fsc->cert;
2023 if (!SSL_set_session_id_context(t, fsc->sid_ctx, (int)fsc->sid_ctx_length)) {
2030 /* Fix this so it checks all the valid key/cert options */
2031 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
2033 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
2034 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
2037 if (ctx->cert->key->privatekey == NULL) {
2038 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
2041 return X509_check_private_key
2042 (ctx->cert->key->x509, ctx->cert->key->privatekey);
2045 /* Fix this function so that it takes an optional type parameter */
2046 int SSL_check_private_key(const SSL *ssl)
2048 const SSL_CONNECTION *sc;
2050 if ((sc = SSL_CONNECTION_FROM_CONST_SSL(ssl)) == NULL) {
2051 ERR_raise(ERR_LIB_SSL, ERR_R_PASSED_NULL_PARAMETER);
2054 if (sc->cert->key->x509 == NULL) {
2055 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
2058 if (sc->cert->key->privatekey == NULL) {
2059 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
2062 return X509_check_private_key(sc->cert->key->x509,
2063 sc->cert->key->privatekey);
2066 int SSL_waiting_for_async(SSL *s)
2068 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2079 int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
2081 ASYNC_WAIT_CTX *ctx;
2082 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2087 if ((ctx = sc->waitctx) == NULL)
2089 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
2092 int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
2093 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
2095 ASYNC_WAIT_CTX *ctx;
2096 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2101 if ((ctx = sc->waitctx) == NULL)
2103 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
2107 int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback)
2109 ctx->async_cb = callback;
2113 int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg)
2115 ctx->async_cb_arg = arg;
2119 int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback)
2121 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2126 sc->async_cb = callback;
2130 int SSL_set_async_callback_arg(SSL *s, void *arg)
2132 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2137 sc->async_cb_arg = arg;
2141 int SSL_get_async_status(SSL *s, int *status)
2143 ASYNC_WAIT_CTX *ctx;
2144 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2149 if ((ctx = sc->waitctx) == NULL)
2151 *status = ASYNC_WAIT_CTX_get_status(ctx);
2155 int SSL_accept(SSL *s)
2157 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2159 #ifndef OPENSSL_NO_QUIC
2161 return s->method->ssl_accept(s);
2167 if (sc->handshake_func == NULL) {
2168 /* Not properly initialized yet */
2169 SSL_set_accept_state(s);
2172 return SSL_do_handshake(s);
2175 int SSL_connect(SSL *s)
2177 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2179 #ifndef OPENSSL_NO_QUIC
2181 return s->method->ssl_connect(s);
2187 if (sc->handshake_func == NULL) {
2188 /* Not properly initialized yet */
2189 SSL_set_connect_state(s);
2192 return SSL_do_handshake(s);
2195 long SSL_get_default_timeout(const SSL *s)
2197 return (long int)ossl_time2seconds(s->method->get_timeout());
2200 static int ssl_async_wait_ctx_cb(void *arg)
2202 SSL *s = (SSL *)arg;
2203 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2208 return sc->async_cb(s, sc->async_cb_arg);
2211 static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
2212 int (*func) (void *))
2215 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2220 if (sc->waitctx == NULL) {
2221 sc->waitctx = ASYNC_WAIT_CTX_new();
2222 if (sc->waitctx == NULL)
2224 if (sc->async_cb != NULL
2225 && !ASYNC_WAIT_CTX_set_callback
2226 (sc->waitctx, ssl_async_wait_ctx_cb, s))
2230 sc->rwstate = SSL_NOTHING;
2231 switch (ASYNC_start_job(&sc->job, sc->waitctx, &ret, func, args,
2232 sizeof(struct ssl_async_args))) {
2234 sc->rwstate = SSL_NOTHING;
2235 ERR_raise(ERR_LIB_SSL, SSL_R_FAILED_TO_INIT_ASYNC);
2238 sc->rwstate = SSL_ASYNC_PAUSED;
2241 sc->rwstate = SSL_ASYNC_NO_JOBS;
2247 sc->rwstate = SSL_NOTHING;
2248 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
2249 /* Shouldn't happen */
2254 static int ssl_io_intern(void *vargs)
2256 struct ssl_async_args *args;
2262 args = (struct ssl_async_args *)vargs;
2266 if ((sc = SSL_CONNECTION_FROM_SSL(s)) == NULL)
2269 switch (args->type) {
2271 return args->f.func_read(s, buf, num, &sc->asyncrw);
2273 return args->f.func_write(s, buf, num, &sc->asyncrw);
2275 return args->f.func_other(s);
2280 int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2282 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2284 #ifndef OPENSSL_NO_QUIC
2286 return s->method->ssl_read(s, buf, num, readbytes);
2292 if (sc->handshake_func == NULL) {
2293 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2297 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2298 sc->rwstate = SSL_NOTHING;
2302 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2303 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
2304 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2308 * If we are a client and haven't received the ServerHello etc then we
2311 ossl_statem_check_finish_init(sc, 0);
2313 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2314 struct ssl_async_args args;
2320 args.type = READFUNC;
2321 args.f.func_read = s->method->ssl_read;
2323 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2324 *readbytes = sc->asyncrw;
2327 return s->method->ssl_read(s, buf, num, readbytes);
2331 int SSL_read(SSL *s, void *buf, int num)
2337 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2341 ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
2344 * The cast is safe here because ret should be <= INT_MAX because num is
2348 ret = (int)readbytes;
2353 int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2355 int ret = ssl_read_internal(s, buf, num, readbytes);
2362 int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
2365 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2371 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2372 return SSL_READ_EARLY_DATA_ERROR;
2375 switch (sc->early_data_state) {
2376 case SSL_EARLY_DATA_NONE:
2377 if (!SSL_in_before(s)) {
2378 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2379 return SSL_READ_EARLY_DATA_ERROR;
2383 case SSL_EARLY_DATA_ACCEPT_RETRY:
2384 sc->early_data_state = SSL_EARLY_DATA_ACCEPTING;
2385 ret = SSL_accept(s);
2388 sc->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
2389 return SSL_READ_EARLY_DATA_ERROR;
2393 case SSL_EARLY_DATA_READ_RETRY:
2394 if (sc->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
2395 sc->early_data_state = SSL_EARLY_DATA_READING;
2396 ret = SSL_read_ex(s, buf, num, readbytes);
2398 * State machine will update early_data_state to
2399 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
2402 if (ret > 0 || (ret <= 0 && sc->early_data_state
2403 != SSL_EARLY_DATA_FINISHED_READING)) {
2404 sc->early_data_state = SSL_EARLY_DATA_READ_RETRY;
2405 return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
2406 : SSL_READ_EARLY_DATA_ERROR;
2409 sc->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
2412 return SSL_READ_EARLY_DATA_FINISH;
2415 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2416 return SSL_READ_EARLY_DATA_ERROR;
2420 int SSL_get_early_data_status(const SSL *s)
2422 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
2427 return sc->ext.early_data;
2430 static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2432 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2434 #ifndef OPENSSL_NO_QUIC
2436 return s->method->ssl_peek(s, buf, num, readbytes);
2442 if (sc->handshake_func == NULL) {
2443 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2447 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2450 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2451 struct ssl_async_args args;
2457 args.type = READFUNC;
2458 args.f.func_read = s->method->ssl_peek;
2460 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2461 *readbytes = sc->asyncrw;
2464 return s->method->ssl_peek(s, buf, num, readbytes);
2468 int SSL_peek(SSL *s, void *buf, int num)
2474 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2478 ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
2481 * The cast is safe here because ret should be <= INT_MAX because num is
2485 ret = (int)readbytes;
2491 int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2493 int ret = ssl_peek_internal(s, buf, num, readbytes);
2500 int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written)
2502 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2504 #ifndef OPENSSL_NO_QUIC
2506 return s->method->ssl_write(s, buf, num, written);
2512 if (sc->handshake_func == NULL) {
2513 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2517 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2518 sc->rwstate = SSL_NOTHING;
2519 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2523 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2524 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
2525 || sc->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
2526 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2529 /* If we are a client and haven't sent the Finished we better do that */
2530 ossl_statem_check_finish_init(sc, 1);
2532 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2534 struct ssl_async_args args;
2537 args.buf = (void *)buf;
2539 args.type = WRITEFUNC;
2540 args.f.func_write = s->method->ssl_write;
2542 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2543 *written = sc->asyncrw;
2546 return s->method->ssl_write(s, buf, num, written);
2550 ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size, int flags)
2553 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2558 if (sc->handshake_func == NULL) {
2559 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2563 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2564 sc->rwstate = SSL_NOTHING;
2565 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2569 if (!BIO_get_ktls_send(sc->wbio)) {
2570 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2574 /* If we have an alert to send, lets send it */
2575 if (sc->s3.alert_dispatch > 0) {
2576 ret = (ossl_ssize_t)s->method->ssl_dispatch_alert(s);
2578 /* SSLfatal() already called if appropriate */
2581 /* if it went, fall through and send more stuff */
2584 sc->rwstate = SSL_WRITING;
2585 if (BIO_flush(sc->wbio) <= 0) {
2586 if (!BIO_should_retry(sc->wbio)) {
2587 sc->rwstate = SSL_NOTHING;
2590 set_sys_error(EAGAIN);
2596 #ifdef OPENSSL_NO_KTLS
2597 ERR_raise_data(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR,
2598 "can't call ktls_sendfile(), ktls disabled");
2601 ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags);
2603 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2604 if ((get_last_sys_error() == EAGAIN) ||
2605 (get_last_sys_error() == EINTR) ||
2606 (get_last_sys_error() == EBUSY))
2607 BIO_set_retry_write(sc->wbio);
2610 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2613 sc->rwstate = SSL_NOTHING;
2618 int SSL_write(SSL *s, const void *buf, int num)
2624 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2628 ret = ssl_write_internal(s, buf, (size_t)num, &written);
2631 * The cast is safe here because ret should be <= INT_MAX because num is
2640 int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
2642 int ret = ssl_write_internal(s, buf, num, written);
2649 int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
2651 int ret, early_data_state;
2653 uint32_t partialwrite;
2654 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2656 /* TODO(QUIC): This will need special handling for QUIC */
2660 switch (sc->early_data_state) {
2661 case SSL_EARLY_DATA_NONE:
2663 || !SSL_in_before(s)
2664 || ((sc->session == NULL || sc->session->ext.max_early_data == 0)
2665 && (sc->psk_use_session_cb == NULL))) {
2666 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2671 case SSL_EARLY_DATA_CONNECT_RETRY:
2672 sc->early_data_state = SSL_EARLY_DATA_CONNECTING;
2673 ret = SSL_connect(s);
2676 sc->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
2681 case SSL_EARLY_DATA_WRITE_RETRY:
2682 sc->early_data_state = SSL_EARLY_DATA_WRITING;
2684 * We disable partial write for early data because we don't keep track
2685 * of how many bytes we've written between the SSL_write_ex() call and
2686 * the flush if the flush needs to be retried)
2688 partialwrite = sc->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
2689 sc->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
2690 ret = SSL_write_ex(s, buf, num, &writtmp);
2691 sc->mode |= partialwrite;
2693 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2696 sc->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
2699 case SSL_EARLY_DATA_WRITE_FLUSH:
2700 /* The buffering BIO is still in place so we need to flush it */
2701 if (statem_flush(sc) != 1)
2704 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2707 case SSL_EARLY_DATA_FINISHED_READING:
2708 case SSL_EARLY_DATA_READ_RETRY:
2709 early_data_state = sc->early_data_state;
2710 /* We are a server writing to an unauthenticated client */
2711 sc->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
2712 ret = SSL_write_ex(s, buf, num, written);
2713 /* The buffering BIO is still in place */
2715 (void)BIO_flush(sc->wbio);
2716 sc->early_data_state = early_data_state;
2720 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2725 int SSL_shutdown(SSL *s)
2728 * Note that this function behaves differently from what one might
2729 * expect. Return values are 0 for no success (yet), 1 for success; but
2730 * calling it once is usually not enough, even if blocking I/O is used
2731 * (see ssl3_shutdown).
2733 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2735 #ifndef OPENSSL_NO_QUIC
2737 return ossl_quic_conn_shutdown(s, 0, NULL, 0);
2743 if (sc->handshake_func == NULL) {
2744 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2748 if (!SSL_in_init(s)) {
2749 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2750 struct ssl_async_args args;
2752 memset(&args, 0, sizeof(args));
2754 args.type = OTHERFUNC;
2755 args.f.func_other = s->method->ssl_shutdown;
2757 return ssl_start_async_job(s, &args, ssl_io_intern);
2759 return s->method->ssl_shutdown(s);
2762 ERR_raise(ERR_LIB_SSL, SSL_R_SHUTDOWN_WHILE_IN_INIT);
2767 int SSL_key_update(SSL *s, int updatetype)
2769 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2771 #ifndef OPENSSL_NO_QUIC
2773 return ossl_quic_key_update(s, updatetype);
2779 if (!SSL_CONNECTION_IS_TLS13(sc)) {
2780 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2784 if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
2785 && updatetype != SSL_KEY_UPDATE_REQUESTED) {
2786 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_KEY_UPDATE_TYPE);
2790 if (!SSL_is_init_finished(s)) {
2791 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
2795 if (RECORD_LAYER_write_pending(&sc->rlayer)) {
2796 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_WRITE_RETRY);
2800 ossl_statem_set_in_init(sc, 1);
2801 sc->key_update = updatetype;
2805 int SSL_get_key_update_type(const SSL *s)
2807 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
2809 #ifndef OPENSSL_NO_QUIC
2811 return ossl_quic_get_key_update_type(s);
2817 return sc->key_update;
2821 * Can we accept a renegotiation request? If yes, set the flag and
2822 * return 1 if yes. If not, raise error and return 0.
2824 static int can_renegotiate(const SSL_CONNECTION *sc)
2826 if (SSL_CONNECTION_IS_TLS13(sc)) {
2827 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2831 if ((sc->options & SSL_OP_NO_RENEGOTIATION) != 0) {
2832 ERR_raise(ERR_LIB_SSL, SSL_R_NO_RENEGOTIATION);
2839 int SSL_renegotiate(SSL *s)
2841 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2846 if (!can_renegotiate(sc))
2849 sc->renegotiate = 1;
2850 sc->new_session = 1;
2851 return s->method->ssl_renegotiate(s);
2854 int SSL_renegotiate_abbreviated(SSL *s)
2856 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2861 if (!can_renegotiate(sc))
2864 sc->renegotiate = 1;
2865 sc->new_session = 0;
2866 return s->method->ssl_renegotiate(s);
2869 int SSL_renegotiate_pending(const SSL *s)
2871 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2877 * becomes true when negotiation is requested; false again once a
2878 * handshake has finished
2880 return (sc->renegotiate != 0);
2883 int SSL_new_session_ticket(SSL *s)
2885 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2890 /* If we are in init because we're sending tickets, okay to send more. */
2891 if ((SSL_in_init(s) && sc->ext.extra_tickets_expected == 0)
2892 || SSL_IS_FIRST_HANDSHAKE(sc) || !sc->server
2893 || !SSL_CONNECTION_IS_TLS13(sc))
2895 sc->ext.extra_tickets_expected++;
2896 if (!RECORD_LAYER_write_pending(&sc->rlayer) && !SSL_in_init(s))
2897 ossl_statem_set_in_init(sc, 1);
2901 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
2904 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2906 /* TODO(QUIC): Special handling for some ctrls will be needed */
2911 case SSL_CTRL_GET_READ_AHEAD:
2914 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
2915 case SSL_CTRL_SET_READ_AHEAD:
2918 l = RECORD_LAYER_get_read_ahead(&sc->rlayer);
2919 RECORD_LAYER_set_read_ahead(&sc->rlayer, larg);
2924 OSSL_PARAM options[2], *opts = options;
2928 *opts++ = OSSL_PARAM_construct_uint32(OSSL_LIBSSL_RECORD_LAYER_PARAM_MODE,
2930 *opts = OSSL_PARAM_construct_end();
2932 /* Ignore return value */
2933 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
2937 case SSL_CTRL_CLEAR_MODE:
2938 return (sc->mode &= ~larg);
2939 case SSL_CTRL_GET_MAX_CERT_LIST:
2940 return (long)sc->max_cert_list;
2941 case SSL_CTRL_SET_MAX_CERT_LIST:
2944 l = (long)sc->max_cert_list;
2945 sc->max_cert_list = (size_t)larg;
2947 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2948 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH || IS_QUIC_SSL(s))
2950 #ifndef OPENSSL_NO_KTLS
2951 if (sc->wbio != NULL && BIO_get_ktls_send(sc->wbio))
2953 #endif /* OPENSSL_NO_KTLS */
2954 sc->max_send_fragment = larg;
2955 if (sc->max_send_fragment < sc->split_send_fragment)
2956 sc->split_send_fragment = sc->max_send_fragment;
2957 sc->rlayer.wrlmethod->set_max_frag_len(sc->rlayer.wrl, larg);
2959 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2960 if ((size_t)larg > sc->max_send_fragment || larg == 0 || IS_QUIC_SSL(s))
2962 sc->split_send_fragment = larg;
2964 case SSL_CTRL_SET_MAX_PIPELINES:
2965 if (larg < 1 || larg > SSL_MAX_PIPELINES || IS_QUIC_SSL(s))
2967 sc->max_pipelines = larg;
2968 if (sc->rlayer.rrlmethod->set_max_pipelines != NULL)
2969 sc->rlayer.rrlmethod->set_max_pipelines(sc->rlayer.rrl, (size_t)larg);
2971 case SSL_CTRL_GET_RI_SUPPORT:
2972 return sc->s3.send_connection_binding;
2973 case SSL_CTRL_SET_RETRY_VERIFY:
2974 sc->rwstate = SSL_RETRY_VERIFY;
2976 case SSL_CTRL_CERT_FLAGS:
2977 return (sc->cert->cert_flags |= larg);
2978 case SSL_CTRL_CLEAR_CERT_FLAGS:
2979 return (sc->cert->cert_flags &= ~larg);
2981 case SSL_CTRL_GET_RAW_CIPHERLIST:
2983 if (sc->s3.tmp.ciphers_raw == NULL)
2985 *(unsigned char **)parg = sc->s3.tmp.ciphers_raw;
2986 return (int)sc->s3.tmp.ciphers_rawlen;
2988 return TLS_CIPHER_LEN;
2990 case SSL_CTRL_GET_EXTMS_SUPPORT:
2991 if (!sc->session || SSL_in_init(s) || ossl_statem_get_in_handshake(sc))
2993 if (sc->session->flags & SSL_SESS_FLAG_EXTMS)
2997 case SSL_CTRL_SET_MIN_PROTO_VERSION:
2998 return ssl_check_allowed_versions(larg, sc->max_proto_version,
3000 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
3001 &sc->min_proto_version);
3002 case SSL_CTRL_GET_MIN_PROTO_VERSION:
3003 return sc->min_proto_version;
3004 case SSL_CTRL_SET_MAX_PROTO_VERSION:
3005 if (IS_QUIC_SSL(s) && larg < TLS1_3_VERSION)
3007 return ssl_check_allowed_versions(sc->min_proto_version, larg,
3009 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
3010 &sc->max_proto_version);
3011 case SSL_CTRL_GET_MAX_PROTO_VERSION:
3012 return sc->max_proto_version;
3014 return s->method->ssl_ctrl(s, cmd, larg, parg);
3018 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
3020 return s->method->ssl_callback_ctrl(s, cmd, fp);
3023 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
3025 return ctx->sessions;
3028 static int ssl_tsan_load(SSL_CTX *ctx, TSAN_QUALIFIER int *stat)
3032 if (ssl_tsan_lock(ctx)) {
3033 res = tsan_load(stat);
3034 ssl_tsan_unlock(ctx);
3039 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
3042 /* For some cases with ctx == NULL perform syntax checks */
3045 case SSL_CTRL_SET_GROUPS_LIST:
3046 return tls1_set_groups_list(ctx, NULL, NULL, parg);
3047 case SSL_CTRL_SET_SIGALGS_LIST:
3048 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
3049 return tls1_set_sigalgs_list(NULL, parg, 0);
3056 case SSL_CTRL_GET_READ_AHEAD:
3057 return ctx->read_ahead;
3058 case SSL_CTRL_SET_READ_AHEAD:
3059 l = ctx->read_ahead;
3060 ctx->read_ahead = larg;
3063 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
3064 ctx->msg_callback_arg = parg;
3067 case SSL_CTRL_GET_MAX_CERT_LIST:
3068 return (long)ctx->max_cert_list;
3069 case SSL_CTRL_SET_MAX_CERT_LIST:
3072 l = (long)ctx->max_cert_list;
3073 ctx->max_cert_list = (size_t)larg;
3076 case SSL_CTRL_SET_SESS_CACHE_SIZE:
3079 l = (long)ctx->session_cache_size;
3080 ctx->session_cache_size = (size_t)larg;
3082 case SSL_CTRL_GET_SESS_CACHE_SIZE:
3083 return (long)ctx->session_cache_size;
3084 case SSL_CTRL_SET_SESS_CACHE_MODE:
3085 l = ctx->session_cache_mode;
3086 ctx->session_cache_mode = larg;
3088 case SSL_CTRL_GET_SESS_CACHE_MODE:
3089 return ctx->session_cache_mode;
3091 case SSL_CTRL_SESS_NUMBER:
3092 return lh_SSL_SESSION_num_items(ctx->sessions);
3093 case SSL_CTRL_SESS_CONNECT:
3094 return ssl_tsan_load(ctx, &ctx->stats.sess_connect);
3095 case SSL_CTRL_SESS_CONNECT_GOOD:
3096 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_good);
3097 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
3098 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_renegotiate);
3099 case SSL_CTRL_SESS_ACCEPT:
3100 return ssl_tsan_load(ctx, &ctx->stats.sess_accept);
3101 case SSL_CTRL_SESS_ACCEPT_GOOD:
3102 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_good);
3103 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
3104 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_renegotiate);
3105 case SSL_CTRL_SESS_HIT:
3106 return ssl_tsan_load(ctx, &ctx->stats.sess_hit);
3107 case SSL_CTRL_SESS_CB_HIT:
3108 return ssl_tsan_load(ctx, &ctx->stats.sess_cb_hit);
3109 case SSL_CTRL_SESS_MISSES:
3110 return ssl_tsan_load(ctx, &ctx->stats.sess_miss);
3111 case SSL_CTRL_SESS_TIMEOUTS:
3112 return ssl_tsan_load(ctx, &ctx->stats.sess_timeout);
3113 case SSL_CTRL_SESS_CACHE_FULL:
3114 return ssl_tsan_load(ctx, &ctx->stats.sess_cache_full);
3116 return (ctx->mode |= larg);
3117 case SSL_CTRL_CLEAR_MODE:
3118 return (ctx->mode &= ~larg);
3119 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
3120 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
3122 ctx->max_send_fragment = larg;
3123 if (ctx->max_send_fragment < ctx->split_send_fragment)
3124 ctx->split_send_fragment = ctx->max_send_fragment;
3126 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
3127 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
3129 ctx->split_send_fragment = larg;
3131 case SSL_CTRL_SET_MAX_PIPELINES:
3132 if (larg < 1 || larg > SSL_MAX_PIPELINES)
3134 ctx->max_pipelines = larg;
3136 case SSL_CTRL_CERT_FLAGS:
3137 return (ctx->cert->cert_flags |= larg);
3138 case SSL_CTRL_CLEAR_CERT_FLAGS:
3139 return (ctx->cert->cert_flags &= ~larg);
3140 case SSL_CTRL_SET_MIN_PROTO_VERSION:
3141 return ssl_check_allowed_versions(larg, ctx->max_proto_version, 0)
3142 && ssl_set_version_bound(ctx->method->version, (int)larg,
3143 &ctx->min_proto_version);
3144 case SSL_CTRL_GET_MIN_PROTO_VERSION:
3145 return ctx->min_proto_version;
3146 case SSL_CTRL_SET_MAX_PROTO_VERSION:
3147 return ssl_check_allowed_versions(ctx->min_proto_version, larg, 0)
3148 && ssl_set_version_bound(ctx->method->version, (int)larg,
3149 &ctx->max_proto_version);
3150 case SSL_CTRL_GET_MAX_PROTO_VERSION:
3151 return ctx->max_proto_version;
3153 return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
3157 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
3160 case SSL_CTRL_SET_MSG_CALLBACK:
3161 ctx->msg_callback = (void (*)
3162 (int write_p, int version, int content_type,
3163 const void *buf, size_t len, SSL *ssl,
3168 return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
3172 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
3181 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
3182 const SSL_CIPHER *const *bp)
3184 if ((*ap)->id > (*bp)->id)
3186 if ((*ap)->id < (*bp)->id)
3192 * return a STACK of the ciphers available for the SSL and in order of
3195 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
3197 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3200 if (sc->cipher_list != NULL) {
3201 return sc->cipher_list;
3202 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
3203 return s->ctx->cipher_list;
3209 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
3211 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3213 if (sc == NULL || !sc->server)
3215 return sc->peer_ciphers;
3218 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
3220 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
3222 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3227 ciphers = SSL_get_ciphers(s);
3230 if (!ssl_set_client_disabled(sc))
3232 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
3233 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
3234 if (!ssl_cipher_disabled(sc, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
3236 sk = sk_SSL_CIPHER_new_null();
3239 if (!sk_SSL_CIPHER_push(sk, c)) {
3240 sk_SSL_CIPHER_free(sk);
3248 /** return a STACK of the ciphers available for the SSL and in order of
3250 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL_CONNECTION *s)
3253 if (s->cipher_list_by_id != NULL)
3254 return s->cipher_list_by_id;
3255 else if (s->ssl.ctx != NULL
3256 && s->ssl.ctx->cipher_list_by_id != NULL)
3257 return s->ssl.ctx->cipher_list_by_id;
3262 /** The old interface to get the same thing as SSL_get_ciphers() */
3263 const char *SSL_get_cipher_list(const SSL *s, int n)
3265 const SSL_CIPHER *c;
3266 STACK_OF(SSL_CIPHER) *sk;
3270 sk = SSL_get_ciphers(s);
3271 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
3273 c = sk_SSL_CIPHER_value(sk, n);
3279 /** return a STACK of the ciphers available for the SSL_CTX and in order of
3281 STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
3284 return ctx->cipher_list;
3289 * Distinguish between ciphers controlled by set_ciphersuite() and
3290 * set_cipher_list() when counting.
3292 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
3295 const SSL_CIPHER *c;
3299 for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
3300 c = sk_SSL_CIPHER_value(sk, i);
3301 if (c->min_tls >= TLS1_3_VERSION)
3308 /** specify the ciphers to be used by default by the SSL_CTX */
3309 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
3311 STACK_OF(SSL_CIPHER) *sk;
3313 sk = ssl_create_cipher_list(ctx, ctx->tls13_ciphersuites,
3314 &ctx->cipher_list, &ctx->cipher_list_by_id, str,
3317 * ssl_create_cipher_list may return an empty stack if it was unable to
3318 * find a cipher matching the given rule string (for example if the rule
3319 * string specifies a cipher which has been disabled). This is not an
3320 * error as far as ssl_create_cipher_list is concerned, and hence
3321 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
3325 else if (cipher_list_tls12_num(sk) == 0) {
3326 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3332 /** specify the ciphers to be used by the SSL */
3333 int SSL_set_cipher_list(SSL *s, const char *str)
3335 STACK_OF(SSL_CIPHER) *sk;
3336 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3341 sk = ssl_create_cipher_list(s->ctx, sc->tls13_ciphersuites,
3342 &sc->cipher_list, &sc->cipher_list_by_id, str,
3344 /* see comment in SSL_CTX_set_cipher_list */
3347 else if (cipher_list_tls12_num(sk) == 0) {
3348 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3354 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
3357 STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
3358 const SSL_CIPHER *c;
3360 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3366 || sc->peer_ciphers == NULL
3371 clntsk = sc->peer_ciphers;
3372 srvrsk = SSL_get_ciphers(s);
3373 if (clntsk == NULL || srvrsk == NULL)
3376 if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
3379 for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
3382 c = sk_SSL_CIPHER_value(clntsk, i);
3383 if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
3386 n = strlen(c->name);
3403 * Return the requested servername (SNI) value. Note that the behaviour varies
3405 * - whether this is called by the client or the server,
3406 * - if we are before or during/after the handshake,
3407 * - if a resumption or normal handshake is being attempted/has occurred
3408 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
3410 * Note that only the host_name type is defined (RFC 3546).
3412 const char *SSL_get_servername(const SSL *s, const int type)
3414 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3421 * If we don't know if we are the client or the server yet then we assume
3424 server = sc->handshake_func == NULL ? 0 : sc->server;
3426 if (type != TLSEXT_NAMETYPE_host_name)
3432 * In TLSv1.3 on the server SNI is not associated with the session
3433 * but in TLSv1.2 or below it is.
3435 * Before the handshake:
3438 * During/after the handshake (TLSv1.2 or below resumption occurred):
3439 * - If a servername was accepted by the server in the original
3440 * handshake then it will return that servername, or NULL otherwise.
3442 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3443 * - The function will return the servername requested by the client in
3444 * this handshake or NULL if none was requested.
3446 if (sc->hit && !SSL_CONNECTION_IS_TLS13(sc))
3447 return sc->session->ext.hostname;
3452 * Before the handshake:
3453 * - If a servername has been set via a call to
3454 * SSL_set_tlsext_host_name() then it will return that servername
3455 * - If one has not been set, but a TLSv1.2 resumption is being
3456 * attempted and the session from the original handshake had a
3457 * servername accepted by the server then it will return that
3459 * - Otherwise it returns NULL
3461 * During/after the handshake (TLSv1.2 or below resumption occurred):
3462 * - If the session from the original handshake had a servername accepted
3463 * by the server then it will return that servername.
3464 * - Otherwise it returns the servername set via
3465 * SSL_set_tlsext_host_name() (or NULL if it was not called).
3467 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3468 * - It will return the servername set via SSL_set_tlsext_host_name()
3469 * (or NULL if it was not called).
3471 if (SSL_in_before(s)) {
3472 if (sc->ext.hostname == NULL
3473 && sc->session != NULL
3474 && sc->session->ssl_version != TLS1_3_VERSION)
3475 return sc->session->ext.hostname;
3477 if (!SSL_CONNECTION_IS_TLS13(sc) && sc->hit
3478 && sc->session->ext.hostname != NULL)
3479 return sc->session->ext.hostname;
3483 return sc->ext.hostname;
3486 int SSL_get_servername_type(const SSL *s)
3488 if (SSL_get_servername(s, TLSEXT_NAMETYPE_host_name) != NULL)
3489 return TLSEXT_NAMETYPE_host_name;
3494 * SSL_select_next_proto implements the standard protocol selection. It is
3495 * expected that this function is called from the callback set by
3496 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
3497 * vector of 8-bit, length prefixed byte strings. The length byte itself is
3498 * not included in the length. A byte string of length 0 is invalid. No byte
3499 * string may be truncated. The current, but experimental algorithm for
3500 * selecting the protocol is: 1) If the server doesn't support NPN then this
3501 * is indicated to the callback. In this case, the client application has to
3502 * abort the connection or have a default application level protocol. 2) If
3503 * the server supports NPN, but advertises an empty list then the client
3504 * selects the first protocol in its list, but indicates via the API that this
3505 * fallback case was enacted. 3) Otherwise, the client finds the first
3506 * protocol in the server's list that it supports and selects this protocol.
3507 * This is because it's assumed that the server has better information about
3508 * which protocol a client should use. 4) If the client doesn't support any
3509 * of the server's advertised protocols, then this is treated the same as
3510 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
3511 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
3513 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
3514 const unsigned char *server,
3515 unsigned int server_len,
3516 const unsigned char *client, unsigned int client_len)
3519 const unsigned char *result;
3520 int status = OPENSSL_NPN_UNSUPPORTED;
3523 * For each protocol in server preference order, see if we support it.
3525 for (i = 0; i < server_len;) {
3526 for (j = 0; j < client_len;) {
3527 if (server[i] == client[j] &&
3528 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
3529 /* We found a match */
3530 result = &server[i];
3531 status = OPENSSL_NPN_NEGOTIATED;
3541 /* There's no overlap between our protocols and the server's list. */
3543 status = OPENSSL_NPN_NO_OVERLAP;
3546 *out = (unsigned char *)result + 1;
3547 *outlen = result[0];
3551 #ifndef OPENSSL_NO_NEXTPROTONEG
3553 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
3554 * client's requested protocol for this connection and returns 0. If the
3555 * client didn't request any protocol, then *data is set to NULL. Note that
3556 * the client can request any protocol it chooses. The value returned from
3557 * this function need not be a member of the list of supported protocols
3558 * provided by the callback.
3560 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
3563 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3566 /* We have no other way to indicate error */
3572 *data = sc->ext.npn;
3573 if (*data == NULL) {
3576 *len = (unsigned int)sc->ext.npn_len;
3581 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
3582 * a TLS server needs a list of supported protocols for Next Protocol
3583 * Negotiation. The returned list must be in wire format. The list is
3584 * returned by setting |out| to point to it and |outlen| to its length. This
3585 * memory will not be modified, but one should assume that the SSL* keeps a
3586 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
3587 * wishes to advertise. Otherwise, no such extension will be included in the
3590 void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
3591 SSL_CTX_npn_advertised_cb_func cb,
3594 if (IS_QUIC_CTX(ctx))
3595 /* NPN not allowed for QUIC */
3598 ctx->ext.npn_advertised_cb = cb;
3599 ctx->ext.npn_advertised_cb_arg = arg;
3603 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
3604 * client needs to select a protocol from the server's provided list. |out|
3605 * must be set to point to the selected protocol (which may be within |in|).
3606 * The length of the protocol name must be written into |outlen|. The
3607 * server's advertised protocols are provided in |in| and |inlen|. The
3608 * callback can assume that |in| is syntactically valid. The client must
3609 * select a protocol. It is fatal to the connection if this callback returns
3610 * a value other than SSL_TLSEXT_ERR_OK.
3612 void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
3613 SSL_CTX_npn_select_cb_func cb,
3616 if (IS_QUIC_CTX(ctx))
3617 /* NPN not allowed for QUIC */
3620 ctx->ext.npn_select_cb = cb;
3621 ctx->ext.npn_select_cb_arg = arg;
3625 static int alpn_value_ok(const unsigned char *protos, unsigned int protos_len)
3629 if (protos_len < 2 || protos == NULL)
3632 for (idx = 0; idx < protos_len; idx += protos[idx] + 1) {
3633 if (protos[idx] == 0)
3636 return idx == protos_len;
3639 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
3640 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3641 * length-prefixed strings). Returns 0 on success.
3643 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
3644 unsigned int protos_len)
3646 unsigned char *alpn;
3648 if (protos_len == 0 || protos == NULL) {
3649 OPENSSL_free(ctx->ext.alpn);
3650 ctx->ext.alpn = NULL;
3651 ctx->ext.alpn_len = 0;
3654 /* Not valid per RFC */
3655 if (!alpn_value_ok(protos, protos_len))
3658 alpn = OPENSSL_memdup(protos, protos_len);
3661 OPENSSL_free(ctx->ext.alpn);
3662 ctx->ext.alpn = alpn;
3663 ctx->ext.alpn_len = protos_len;
3669 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
3670 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3671 * length-prefixed strings). Returns 0 on success.
3673 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
3674 unsigned int protos_len)
3676 unsigned char *alpn;
3677 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
3682 if (protos_len == 0 || protos == NULL) {
3683 OPENSSL_free(sc->ext.alpn);
3684 sc->ext.alpn = NULL;
3685 sc->ext.alpn_len = 0;
3688 /* Not valid per RFC */
3689 if (!alpn_value_ok(protos, protos_len))
3692 alpn = OPENSSL_memdup(protos, protos_len);
3695 OPENSSL_free(sc->ext.alpn);
3696 sc->ext.alpn = alpn;
3697 sc->ext.alpn_len = protos_len;
3703 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3704 * called during ClientHello processing in order to select an ALPN protocol
3705 * from the client's list of offered protocols.
3707 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
3708 SSL_CTX_alpn_select_cb_func cb,
3711 ctx->ext.alpn_select_cb = cb;
3712 ctx->ext.alpn_select_cb_arg = arg;
3716 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3717 * On return it sets |*data| to point to |*len| bytes of protocol name
3718 * (not including the leading length-prefix byte). If the server didn't
3719 * respond with a negotiated protocol then |*len| will be zero.
3721 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
3724 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
3727 /* We have no other way to indicate error */
3733 *data = sc->s3.alpn_selected;
3737 *len = (unsigned int)sc->s3.alpn_selected_len;
3740 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
3741 const char *label, size_t llen,
3742 const unsigned char *context, size_t contextlen,
3745 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3750 if (sc->session == NULL
3751 || (sc->version < TLS1_VERSION && sc->version != DTLS1_BAD_VER))
3754 return s->method->ssl3_enc->export_keying_material(sc, out, olen, label,
3756 contextlen, use_context);
3759 int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
3760 const char *label, size_t llen,
3761 const unsigned char *context,
3764 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3769 if (sc->version != TLS1_3_VERSION)
3772 return tls13_export_keying_material_early(sc, out, olen, label, llen,
3773 context, contextlen);
3776 static unsigned long ssl_session_hash(const SSL_SESSION *a)
3778 const unsigned char *session_id = a->session_id;
3780 unsigned char tmp_storage[4];
3782 if (a->session_id_length < sizeof(tmp_storage)) {
3783 memset(tmp_storage, 0, sizeof(tmp_storage));
3784 memcpy(tmp_storage, a->session_id, a->session_id_length);
3785 session_id = tmp_storage;
3789 ((unsigned long)session_id[0]) |
3790 ((unsigned long)session_id[1] << 8L) |
3791 ((unsigned long)session_id[2] << 16L) |
3792 ((unsigned long)session_id[3] << 24L);
3797 * NB: If this function (or indeed the hash function which uses a sort of
3798 * coarser function than this one) is changed, ensure
3799 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3800 * being able to construct an SSL_SESSION that will collide with any existing
3801 * session with a matching session ID.
3803 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
3805 if (a->ssl_version != b->ssl_version)
3807 if (a->session_id_length != b->session_id_length)
3809 return memcmp(a->session_id, b->session_id, a->session_id_length);
3813 * These wrapper functions should remain rather than redeclaring
3814 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3815 * variable. The reason is that the functions aren't static, they're exposed
3819 SSL_CTX *SSL_CTX_new_ex(OSSL_LIB_CTX *libctx, const char *propq,
3820 const SSL_METHOD *meth)
3822 SSL_CTX *ret = NULL;
3823 #ifndef OPENSSL_NO_COMP_ALG
3828 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_METHOD_PASSED);
3832 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
3835 /* Doing this for the run once effect */
3836 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3837 ERR_raise(ERR_LIB_SSL, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
3841 ret = OPENSSL_zalloc(sizeof(*ret));
3845 /* Init the reference counting before any call to SSL_CTX_free */
3846 if (!CRYPTO_NEW_REF(&ret->references, 1)) {
3851 ret->lock = CRYPTO_THREAD_lock_new();
3852 if (ret->lock == NULL) {
3853 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3857 #ifdef TSAN_REQUIRES_LOCKING
3858 ret->tsan_lock = CRYPTO_THREAD_lock_new();
3859 if (ret->tsan_lock == NULL) {
3860 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3865 ret->libctx = libctx;
3866 if (propq != NULL) {
3867 ret->propq = OPENSSL_strdup(propq);
3868 if (ret->propq == NULL)
3873 ret->min_proto_version = 0;
3874 ret->max_proto_version = 0;
3875 ret->mode = SSL_MODE_AUTO_RETRY;
3876 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
3877 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
3878 /* We take the system default. */
3879 ret->session_timeout = meth->get_timeout();
3880 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
3881 ret->verify_mode = SSL_VERIFY_NONE;
3883 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
3884 if (ret->sessions == NULL) {
3885 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3888 ret->cert_store = X509_STORE_new();
3889 if (ret->cert_store == NULL) {
3890 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3893 #ifndef OPENSSL_NO_CT
3894 ret->ctlog_store = CTLOG_STORE_new_ex(libctx, propq);
3895 if (ret->ctlog_store == NULL) {
3896 ERR_raise(ERR_LIB_SSL, ERR_R_CT_LIB);
3901 /* initialize cipher/digest methods table */
3902 if (!ssl_load_ciphers(ret)) {
3903 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3907 if (!ssl_load_groups(ret)) {
3908 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3912 /* load provider sigalgs */
3913 if (!ssl_load_sigalgs(ret)) {
3914 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3918 /* initialise sig algs */
3919 if (!ssl_setup_sigalgs(ret)) {
3920 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3924 if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites())) {
3925 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3929 if ((ret->cert = ssl_cert_new(SSL_PKEY_NUM + ret->sigalg_list_len)) == NULL) {
3930 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3934 if (!ssl_create_cipher_list(ret,
3935 ret->tls13_ciphersuites,
3936 &ret->cipher_list, &ret->cipher_list_by_id,
3937 OSSL_default_cipher_list(), ret->cert)
3938 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
3939 ERR_raise(ERR_LIB_SSL, SSL_R_LIBRARY_HAS_NO_CIPHERS);
3943 ret->param = X509_VERIFY_PARAM_new();
3944 if (ret->param == NULL) {
3945 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3950 * If these aren't available from the provider we'll get NULL returns.
3951 * That's fine but will cause errors later if SSLv3 is negotiated
3953 ret->md5 = ssl_evp_md_fetch(libctx, NID_md5, propq);
3954 ret->sha1 = ssl_evp_md_fetch(libctx, NID_sha1, propq);
3956 if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL) {
3957 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3961 if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL) {
3962 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3966 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) {
3967 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3971 if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
3974 /* No compression for DTLS */
3975 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
3976 ret->comp_methods = SSL_COMP_get_compression_methods();
3978 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3979 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3981 /* Setup RFC5077 ticket keys */
3982 if ((RAND_bytes_ex(libctx, ret->ext.tick_key_name,
3983 sizeof(ret->ext.tick_key_name), 0) <= 0)
3984 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_hmac_key,
3985 sizeof(ret->ext.secure->tick_hmac_key), 0) <= 0)
3986 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_aes_key,
3987 sizeof(ret->ext.secure->tick_aes_key), 0) <= 0))
3988 ret->options |= SSL_OP_NO_TICKET;
3990 if (RAND_priv_bytes_ex(libctx, ret->ext.cookie_hmac_key,
3991 sizeof(ret->ext.cookie_hmac_key), 0) <= 0) {
3992 ERR_raise(ERR_LIB_SSL, ERR_R_RAND_LIB);
3996 #ifndef OPENSSL_NO_SRP
3997 if (!ssl_ctx_srp_ctx_init_intern(ret)) {
3998 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
4002 #ifndef OPENSSL_NO_ENGINE
4003 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
4004 # define eng_strx(x) #x
4005 # define eng_str(x) eng_strx(x)
4006 /* Use specific client engine automatically... ignore errors */
4009 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
4012 ENGINE_load_builtin_engines();
4013 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
4015 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
4021 #ifndef OPENSSL_NO_COMP_ALG
4023 * Set the default order: brotli, zlib, zstd
4024 * Including only those enabled algorithms
4026 memset(ret->cert_comp_prefs, 0, sizeof(ret->cert_comp_prefs));
4028 if (ossl_comp_has_alg(TLSEXT_comp_cert_brotli))
4029 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_brotli;
4030 if (ossl_comp_has_alg(TLSEXT_comp_cert_zlib))
4031 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zlib;
4032 if (ossl_comp_has_alg(TLSEXT_comp_cert_zstd))
4033 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zstd;
4036 * Disable compression by default to prevent CRIME. Applications can
4037 * re-enable compression by configuring
4038 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
4039 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
4040 * middlebox compatibility by default. This may be disabled by default in
4041 * a later OpenSSL version.
4043 ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
4045 ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
4048 * We cannot usefully set a default max_early_data here (which gets
4049 * propagated in SSL_new(), for the following reason: setting the
4050 * SSL field causes tls_construct_stoc_early_data() to tell the
4051 * client that early data will be accepted when constructing a TLS 1.3
4052 * session ticket, and the client will accordingly send us early data
4053 * when using that ticket (if the client has early data to send).
4054 * However, in order for the early data to actually be consumed by
4055 * the application, the application must also have calls to
4056 * SSL_read_early_data(); otherwise we'll just skip past the early data
4057 * and ignore it. So, since the application must add calls to
4058 * SSL_read_early_data(), we also require them to add
4059 * calls to SSL_CTX_set_max_early_data() in order to use early data,
4060 * eliminating the bandwidth-wasting early data in the case described
4063 ret->max_early_data = 0;
4066 * Default recv_max_early_data is a fully loaded single record. Could be
4067 * split across multiple records in practice. We set this differently to
4068 * max_early_data so that, in the default case, we do not advertise any
4069 * support for early_data, but if a client were to send us some (e.g.
4070 * because of an old, stale ticket) then we will tolerate it and skip over
4073 ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
4075 /* By default we send two session tickets automatically in TLSv1.3 */
4076 ret->num_tickets = 2;
4078 ssl_ctx_system_config(ret);
4086 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
4088 return SSL_CTX_new_ex(NULL, NULL, meth);
4091 int SSL_CTX_up_ref(SSL_CTX *ctx)
4095 if (CRYPTO_UP_REF(&ctx->references, &i) <= 0)
4098 REF_PRINT_COUNT("SSL_CTX", ctx);
4099 REF_ASSERT_ISNT(i < 2);
4100 return ((i > 1) ? 1 : 0);
4103 void SSL_CTX_free(SSL_CTX *a)
4111 CRYPTO_DOWN_REF(&a->references, &i);
4112 REF_PRINT_COUNT("SSL_CTX", a);
4115 REF_ASSERT_ISNT(i < 0);
4117 X509_VERIFY_PARAM_free(a->param);
4118 dane_ctx_final(&a->dane);
4121 * Free internal session cache. However: the remove_cb() may reference
4122 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
4123 * after the sessions were flushed.
4124 * As the ex_data handling routines might also touch the session cache,
4125 * the most secure solution seems to be: empty (flush) the cache, then
4126 * free ex_data, then finally free the cache.
4127 * (See ticket [openssl.org #212].)
4129 if (a->sessions != NULL)
4130 SSL_CTX_flush_sessions(a, 0);
4132 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
4133 lh_SSL_SESSION_free(a->sessions);
4134 X509_STORE_free(a->cert_store);
4135 #ifndef OPENSSL_NO_CT
4136 CTLOG_STORE_free(a->ctlog_store);
4138 sk_SSL_CIPHER_free(a->cipher_list);
4139 sk_SSL_CIPHER_free(a->cipher_list_by_id);
4140 sk_SSL_CIPHER_free(a->tls13_ciphersuites);
4141 ssl_cert_free(a->cert);
4142 sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
4143 sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
4144 OSSL_STACK_OF_X509_free(a->extra_certs);
4145 a->comp_methods = NULL;
4146 #ifndef OPENSSL_NO_SRTP
4147 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
4149 #ifndef OPENSSL_NO_SRP
4150 ssl_ctx_srp_ctx_free_intern(a);
4152 #ifndef OPENSSL_NO_ENGINE
4153 tls_engine_finish(a->client_cert_engine);
4156 OPENSSL_free(a->ext.ecpointformats);
4157 OPENSSL_free(a->ext.supportedgroups);
4158 OPENSSL_free(a->ext.supported_groups_default);
4159 OPENSSL_free(a->ext.alpn);
4160 OPENSSL_secure_free(a->ext.secure);
4162 ssl_evp_md_free(a->md5);
4163 ssl_evp_md_free(a->sha1);
4165 for (j = 0; j < SSL_ENC_NUM_IDX; j++)
4166 ssl_evp_cipher_free(a->ssl_cipher_methods[j]);
4167 for (j = 0; j < SSL_MD_NUM_IDX; j++)
4168 ssl_evp_md_free(a->ssl_digest_methods[j]);
4169 for (j = 0; j < a->group_list_len; j++) {
4170 OPENSSL_free(a->group_list[j].tlsname);
4171 OPENSSL_free(a->group_list[j].realname);
4172 OPENSSL_free(a->group_list[j].algorithm);
4174 OPENSSL_free(a->group_list);
4175 for (j = 0; j < a->sigalg_list_len; j++) {
4176 OPENSSL_free(a->sigalg_list[j].name);
4177 OPENSSL_free(a->sigalg_list[j].sigalg_name);
4178 OPENSSL_free(a->sigalg_list[j].sigalg_oid);
4179 OPENSSL_free(a->sigalg_list[j].sig_name);
4180 OPENSSL_free(a->sigalg_list[j].sig_oid);
4181 OPENSSL_free(a->sigalg_list[j].hash_name);
4182 OPENSSL_free(a->sigalg_list[j].hash_oid);
4183 OPENSSL_free(a->sigalg_list[j].keytype);
4184 OPENSSL_free(a->sigalg_list[j].keytype_oid);
4186 OPENSSL_free(a->sigalg_list);
4187 OPENSSL_free(a->ssl_cert_info);
4189 OPENSSL_free(a->sigalg_lookup_cache);
4190 OPENSSL_free(a->tls12_sigalgs);
4192 OPENSSL_free(a->client_cert_type);
4193 OPENSSL_free(a->server_cert_type);
4195 CRYPTO_THREAD_lock_free(a->lock);
4196 CRYPTO_FREE_REF(&a->references);
4197 #ifdef TSAN_REQUIRES_LOCKING
4198 CRYPTO_THREAD_lock_free(a->tsan_lock);
4201 OPENSSL_free(a->propq);
4206 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
4208 ctx->default_passwd_callback = cb;
4211 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
4213 ctx->default_passwd_callback_userdata = u;
4216 pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
4218 return ctx->default_passwd_callback;
4221 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
4223 return ctx->default_passwd_callback_userdata;
4226 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
4228 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4233 sc->default_passwd_callback = cb;
4236 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
4238 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4243 sc->default_passwd_callback_userdata = u;
4246 pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
4248 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4253 return sc->default_passwd_callback;
4256 void *SSL_get_default_passwd_cb_userdata(SSL *s)
4258 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4263 return sc->default_passwd_callback_userdata;
4266 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
4267 int (*cb) (X509_STORE_CTX *, void *),
4270 ctx->app_verify_callback = cb;
4271 ctx->app_verify_arg = arg;
4274 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
4275 int (*cb) (int, X509_STORE_CTX *))
4277 ctx->verify_mode = mode;
4278 ctx->default_verify_callback = cb;
4281 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
4283 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
4286 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
4288 ssl_cert_set_cert_cb(c->cert, cb, arg);
4291 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
4293 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4298 ssl_cert_set_cert_cb(sc->cert, cb, arg);
4301 void ssl_set_masks(SSL_CONNECTION *s)
4304 uint32_t *pvalid = s->s3.tmp.valid_flags;
4305 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
4306 unsigned long mask_k, mask_a;
4307 int have_ecc_cert, ecdsa_ok;
4312 dh_tmp = (c->dh_tmp != NULL
4313 || c->dh_tmp_cb != NULL
4316 rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4317 rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4318 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
4319 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
4323 OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
4324 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
4326 #ifndef OPENSSL_NO_GOST
4327 if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
4328 mask_k |= SSL_kGOST | SSL_kGOST18;
4329 mask_a |= SSL_aGOST12;
4331 if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
4332 mask_k |= SSL_kGOST | SSL_kGOST18;
4333 mask_a |= SSL_aGOST12;
4335 if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
4336 mask_k |= SSL_kGOST;
4337 mask_a |= SSL_aGOST01;
4348 * If we only have an RSA-PSS certificate allow RSA authentication
4349 * if TLS 1.2 and peer supports it.
4352 if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
4353 && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
4354 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION))
4361 mask_a |= SSL_aNULL;
4364 * You can do anything with an RPK key, since there's no cert to restrict it
4365 * But we need to check for private keys
4367 if (pvalid[SSL_PKEY_RSA] & CERT_PKEY_RPK) {
4371 if (pvalid[SSL_PKEY_ECC] & CERT_PKEY_RPK)
4372 mask_a |= SSL_aECDSA;
4373 if (TLS1_get_version(&s->ssl) == TLS1_2_VERSION) {
4374 if (pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_RPK)
4376 if (pvalid[SSL_PKEY_ED25519] & CERT_PKEY_RPK
4377 || pvalid[SSL_PKEY_ED448] & CERT_PKEY_RPK)
4378 mask_a |= SSL_aECDSA;
4382 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
4383 * depending on the key usage extension.
4385 if (have_ecc_cert) {
4387 ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
4388 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
4389 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
4392 mask_a |= SSL_aECDSA;
4394 /* Allow Ed25519 for TLS 1.2 if peer supports it */
4395 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
4396 && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
4397 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4398 mask_a |= SSL_aECDSA;
4400 /* Allow Ed448 for TLS 1.2 if peer supports it */
4401 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
4402 && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
4403 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4404 mask_a |= SSL_aECDSA;
4406 mask_k |= SSL_kECDHE;
4408 #ifndef OPENSSL_NO_PSK
4411 if (mask_k & SSL_kRSA)
4412 mask_k |= SSL_kRSAPSK;
4413 if (mask_k & SSL_kDHE)
4414 mask_k |= SSL_kDHEPSK;
4415 if (mask_k & SSL_kECDHE)
4416 mask_k |= SSL_kECDHEPSK;
4419 s->s3.tmp.mask_k = mask_k;
4420 s->s3.tmp.mask_a = mask_a;
4423 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CONNECTION *s)
4425 if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
4426 /* key usage, if present, must allow signing */
4427 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
4428 ERR_raise(ERR_LIB_SSL, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
4432 return 1; /* all checks are ok */
4435 int ssl_get_server_cert_serverinfo(SSL_CONNECTION *s,
4436 const unsigned char **serverinfo,
4437 size_t *serverinfo_length)
4439 CERT_PKEY *cpk = s->s3.tmp.cert;
4440 *serverinfo_length = 0;
4442 if (cpk == NULL || cpk->serverinfo == NULL)
4445 *serverinfo = cpk->serverinfo;
4446 *serverinfo_length = cpk->serverinfo_length;
4450 void ssl_update_cache(SSL_CONNECTION *s, int mode)
4455 * If the session_id_length is 0, we are not supposed to cache it, and it
4456 * would be rather hard to do anyway :-)
4458 if (s->session->session_id_length == 0)
4462 * If sid_ctx_length is 0 there is no specific application context
4463 * associated with this session, so when we try to resume it and
4464 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
4465 * indication that this is actually a session for the proper application
4466 * context, and the *handshake* will fail, not just the resumption attempt.
4467 * Do not cache (on the server) these sessions that are not resumable
4468 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
4470 if (s->server && s->session->sid_ctx_length == 0
4471 && (s->verify_mode & SSL_VERIFY_PEER) != 0)
4474 i = s->session_ctx->session_cache_mode;
4476 && (!s->hit || SSL_CONNECTION_IS_TLS13(s))) {
4478 * Add the session to the internal cache. In server side TLSv1.3 we
4479 * normally don't do this because by default it's a full stateless ticket
4480 * with only a dummy session id so there is no reason to cache it,
4482 * - we are doing early_data, in which case we cache so that we can
4484 * - the application has set a remove_session_cb so needs to know about
4485 * session timeout events
4486 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
4488 if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
4489 && (!SSL_CONNECTION_IS_TLS13(s)
4491 || (s->max_early_data > 0
4492 && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
4493 || s->session_ctx->remove_session_cb != NULL
4494 || (s->options & SSL_OP_NO_TICKET) != 0))
4495 SSL_CTX_add_session(s->session_ctx, s->session);
4498 * Add the session to the external cache. We do this even in server side
4499 * TLSv1.3 without early data because some applications just want to
4500 * know about the creation of a session and aren't doing a full cache.
4502 if (s->session_ctx->new_session_cb != NULL) {
4503 SSL_SESSION_up_ref(s->session);
4504 if (!s->session_ctx->new_session_cb(SSL_CONNECTION_GET_SSL(s),
4506 SSL_SESSION_free(s->session);
4510 /* auto flush every 255 connections */
4511 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
4512 TSAN_QUALIFIER int *stat;
4514 if (mode & SSL_SESS_CACHE_CLIENT)
4515 stat = &s->session_ctx->stats.sess_connect_good;
4517 stat = &s->session_ctx->stats.sess_accept_good;
4518 if ((ssl_tsan_load(s->session_ctx, stat) & 0xff) == 0xff)
4519 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
4523 const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
4528 const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
4533 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
4536 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4538 /* Not allowed for QUIC */
4540 || (s->type != SSL_TYPE_SSL_CONNECTION && s->method != meth)
4541 || (s->type == SSL_TYPE_SSL_CONNECTION && IS_QUIC_METHOD(meth)))
4544 if (s->method != meth) {
4545 const SSL_METHOD *sm = s->method;
4546 int (*hf) (SSL *) = sc->handshake_func;
4548 if (sm->version == meth->version)
4553 ret = s->method->ssl_init(s);
4556 if (hf == sm->ssl_connect)
4557 sc->handshake_func = meth->ssl_connect;
4558 else if (hf == sm->ssl_accept)
4559 sc->handshake_func = meth->ssl_accept;
4564 int SSL_get_error(const SSL *s, int i)
4569 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4572 return SSL_ERROR_NONE;
4574 #ifndef OPENSSL_NO_QUIC
4576 reason = ossl_quic_get_error(s, i);
4577 if (reason != SSL_ERROR_NONE)
4583 return SSL_ERROR_SSL;
4586 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
4587 * where we do encode the error
4589 if ((l = ERR_peek_error()) != 0) {
4590 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
4591 return SSL_ERROR_SYSCALL;
4593 return SSL_ERROR_SSL;
4596 #ifndef OPENSSL_NO_QUIC
4600 if (SSL_want_read(s)) {
4601 bio = SSL_get_rbio(s);
4602 if (BIO_should_read(bio))
4603 return SSL_ERROR_WANT_READ;
4604 else if (BIO_should_write(bio))
4606 * This one doesn't make too much sense ... We never try to
4607 * write to the rbio, and an application program where rbio and
4608 * wbio are separate couldn't even know what it should wait for.
4609 * However if we ever set s->rwstate incorrectly (so that we
4610 * have SSL_want_read(s) instead of SSL_want_write(s)) and rbio
4611 * and wbio *are* the same, this test works around that bug; so
4612 * it might be safer to keep it.
4614 return SSL_ERROR_WANT_WRITE;
4615 else if (BIO_should_io_special(bio)) {
4616 reason = BIO_get_retry_reason(bio);
4617 if (reason == BIO_RR_CONNECT)
4618 return SSL_ERROR_WANT_CONNECT;
4619 else if (reason == BIO_RR_ACCEPT)
4620 return SSL_ERROR_WANT_ACCEPT;
4622 return SSL_ERROR_SYSCALL; /* unknown */
4626 if (SSL_want_write(s)) {
4628 * Access wbio directly - in order to use the buffered bio if
4632 if (BIO_should_write(bio))
4633 return SSL_ERROR_WANT_WRITE;
4634 else if (BIO_should_read(bio))
4636 * See above (SSL_want_read(s) with BIO_should_write(bio))
4638 return SSL_ERROR_WANT_READ;
4639 else if (BIO_should_io_special(bio)) {
4640 reason = BIO_get_retry_reason(bio);
4641 if (reason == BIO_RR_CONNECT)
4642 return SSL_ERROR_WANT_CONNECT;
4643 else if (reason == BIO_RR_ACCEPT)
4644 return SSL_ERROR_WANT_ACCEPT;
4646 return SSL_ERROR_SYSCALL;
4651 if (SSL_want_x509_lookup(s))
4652 return SSL_ERROR_WANT_X509_LOOKUP;
4653 if (SSL_want_retry_verify(s))
4654 return SSL_ERROR_WANT_RETRY_VERIFY;
4655 if (SSL_want_async(s))
4656 return SSL_ERROR_WANT_ASYNC;
4657 if (SSL_want_async_job(s))
4658 return SSL_ERROR_WANT_ASYNC_JOB;
4659 if (SSL_want_client_hello_cb(s))
4660 return SSL_ERROR_WANT_CLIENT_HELLO_CB;
4662 if ((sc->shutdown & SSL_RECEIVED_SHUTDOWN) &&
4663 (sc->s3.warn_alert == SSL_AD_CLOSE_NOTIFY))
4664 return SSL_ERROR_ZERO_RETURN;
4666 return SSL_ERROR_SYSCALL;
4669 static int ssl_do_handshake_intern(void *vargs)
4671 struct ssl_async_args *args = (struct ssl_async_args *)vargs;
4673 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4678 return sc->handshake_func(s);
4681 int SSL_do_handshake(SSL *s)
4684 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4686 #ifndef OPENSSL_NO_QUIC
4688 return ossl_quic_do_handshake(s);
4691 if (sc->handshake_func == NULL) {
4692 ERR_raise(ERR_LIB_SSL, SSL_R_CONNECTION_TYPE_NOT_SET);
4696 ossl_statem_check_finish_init(sc, -1);
4698 s->method->ssl_renegotiate_check(s, 0);
4700 if (SSL_in_init(s) || SSL_in_before(s)) {
4701 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
4702 struct ssl_async_args args;
4704 memset(&args, 0, sizeof(args));
4707 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
4709 ret = sc->handshake_func(s);
4715 void SSL_set_accept_state(SSL *s)
4717 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4719 #ifndef OPENSSL_NO_QUIC
4721 ossl_quic_set_accept_state(s);
4728 ossl_statem_clear(sc);
4729 sc->handshake_func = s->method->ssl_accept;
4730 /* Ignore return value. Its a void public API function */
4731 clear_record_layer(sc);
4734 void SSL_set_connect_state(SSL *s)
4736 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4738 #ifndef OPENSSL_NO_QUIC
4740 ossl_quic_set_connect_state(s);
4747 ossl_statem_clear(sc);
4748 sc->handshake_func = s->method->ssl_connect;
4749 /* Ignore return value. Its a void public API function */
4750 clear_record_layer(sc);
4753 int ssl_undefined_function(SSL *s)
4755 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4759 int ssl_undefined_void_function(void)
4761 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4765 int ssl_undefined_const_function(const SSL *s)
4770 const SSL_METHOD *ssl_bad_method(int ver)
4772 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4776 const char *ssl_protocol_to_string(int version)
4780 case TLS1_3_VERSION:
4783 case TLS1_2_VERSION:
4786 case TLS1_1_VERSION:
4801 case DTLS1_2_VERSION:
4809 const char *SSL_get_version(const SSL *s)
4811 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4813 #ifndef OPENSSL_NO_QUIC
4814 /* We only support QUICv1 - so if its QUIC its QUICv1 */
4815 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
4822 return ssl_protocol_to_string(sc->version);
4825 __owur int SSL_get_handshake_rtt(const SSL *s, uint64_t *rtt)
4827 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4831 if (sc->ts_msg_write.t <= 0 || sc->ts_msg_read.t <= 0)
4832 return 0; /* data not (yet) available */
4833 if (sc->ts_msg_read.t < sc->ts_msg_write.t)
4836 *rtt = ossl_time2us(ossl_time_subtract(sc->ts_msg_read, sc->ts_msg_write));
4840 static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
4842 STACK_OF(X509_NAME) *sk;
4851 if ((sk = sk_X509_NAME_new_null()) == NULL)
4853 for (i = 0; i < sk_X509_NAME_num(src); i++) {
4854 xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
4856 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4859 if (sk_X509_NAME_insert(sk, xn, i) == 0) {
4861 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4870 SSL *SSL_dup(SSL *s)
4874 /* TODO(QUIC): Add a SSL_METHOD function for duplication */
4875 SSL_CONNECTION *retsc;
4876 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4881 /* If we're not quiescent, just up_ref! */
4882 if (!SSL_in_init(s) || !SSL_in_before(s)) {
4883 CRYPTO_UP_REF(&s->references, &i);
4888 * Otherwise, copy configuration state, and session if set.
4890 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
4892 if ((retsc = SSL_CONNECTION_FROM_SSL_ONLY(ret)) == NULL)
4895 if (sc->session != NULL) {
4897 * Arranges to share the same session via up_ref. This "copies"
4898 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4900 if (!SSL_copy_session_id(ret, s))
4904 * No session has been established yet, so we have to expect that
4905 * s->cert or ret->cert will be changed later -- they should not both
4906 * point to the same object, and thus we can't use
4907 * SSL_copy_session_id.
4909 if (!SSL_set_ssl_method(ret, s->method))
4912 if (sc->cert != NULL) {
4913 ssl_cert_free(retsc->cert);
4914 retsc->cert = ssl_cert_dup(sc->cert);
4915 if (retsc->cert == NULL)
4919 if (!SSL_set_session_id_context(ret, sc->sid_ctx,
4920 (int)sc->sid_ctx_length))
4924 if (!ssl_dane_dup(retsc, sc))
4926 retsc->version = sc->version;
4927 retsc->options = sc->options;
4928 retsc->min_proto_version = sc->min_proto_version;
4929 retsc->max_proto_version = sc->max_proto_version;
4930 retsc->mode = sc->mode;
4931 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
4932 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
4933 retsc->msg_callback = sc->msg_callback;
4934 retsc->msg_callback_arg = sc->msg_callback_arg;
4935 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
4936 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
4937 retsc->generate_session_id = sc->generate_session_id;
4939 SSL_set_info_callback(ret, SSL_get_info_callback(s));
4941 /* copy app data, a little dangerous perhaps */
4942 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
4945 retsc->server = sc->server;
4946 if (sc->handshake_func) {
4948 SSL_set_accept_state(ret);
4950 SSL_set_connect_state(ret);
4952 retsc->shutdown = sc->shutdown;
4953 retsc->hit = sc->hit;
4955 retsc->default_passwd_callback = sc->default_passwd_callback;
4956 retsc->default_passwd_callback_userdata = sc->default_passwd_callback_userdata;
4958 X509_VERIFY_PARAM_inherit(retsc->param, sc->param);
4960 /* dup the cipher_list and cipher_list_by_id stacks */
4961 if (sc->cipher_list != NULL) {
4962 if ((retsc->cipher_list = sk_SSL_CIPHER_dup(sc->cipher_list)) == NULL)
4965 if (sc->cipher_list_by_id != NULL)
4966 if ((retsc->cipher_list_by_id = sk_SSL_CIPHER_dup(sc->cipher_list_by_id))
4970 /* Dup the client_CA list */
4971 if (!dup_ca_names(&retsc->ca_names, sc->ca_names)
4972 || !dup_ca_names(&retsc->client_ca_names, sc->client_ca_names))
4982 X509 *SSL_get_certificate(const SSL *s)
4984 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4989 if (sc->cert != NULL)
4990 return sc->cert->key->x509;
4995 EVP_PKEY *SSL_get_privatekey(const SSL *s)
4997 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5002 if (sc->cert != NULL)
5003 return sc->cert->key->privatekey;
5008 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
5010 if (ctx->cert != NULL)
5011 return ctx->cert->key->x509;
5016 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
5018 if (ctx->cert != NULL)
5019 return ctx->cert->key->privatekey;
5024 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
5026 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5031 if ((sc->session != NULL) && (sc->session->cipher != NULL))
5032 return sc->session->cipher;
5036 const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
5038 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5043 return sc->s3.tmp.new_cipher;
5046 const COMP_METHOD *SSL_get_current_compression(const SSL *s)
5048 #ifndef OPENSSL_NO_COMP
5049 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5054 return sc->rlayer.wrlmethod->get_compression(sc->rlayer.wrl);
5060 const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
5062 #ifndef OPENSSL_NO_COMP
5063 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5068 return sc->rlayer.rrlmethod->get_compression(sc->rlayer.rrl);
5074 int ssl_init_wbio_buffer(SSL_CONNECTION *s)
5078 if (s->bbio != NULL) {
5079 /* Already buffered. */
5083 bbio = BIO_new(BIO_f_buffer());
5084 if (bbio == NULL || BIO_set_read_buffer_size(bbio, 1) <= 0) {
5086 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
5090 s->wbio = BIO_push(bbio, s->wbio);
5092 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5097 int ssl_free_wbio_buffer(SSL_CONNECTION *s)
5099 /* callers ensure s is never null */
5100 if (s->bbio == NULL)
5103 s->wbio = BIO_pop(s->wbio);
5104 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5112 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
5114 ctx->quiet_shutdown = mode;
5117 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
5119 return ctx->quiet_shutdown;
5122 void SSL_set_quiet_shutdown(SSL *s, int mode)
5124 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5126 /* TODO(QUIC): Currently not supported for QUIC. */
5130 sc->quiet_shutdown = mode;
5133 int SSL_get_quiet_shutdown(const SSL *s)
5135 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5137 /* TODO(QUIC): Currently not supported for QUIC. */
5141 return sc->quiet_shutdown;
5144 void SSL_set_shutdown(SSL *s, int mode)
5146 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5148 /* TODO(QUIC): Do we want this for QUIC? */
5152 sc->shutdown = mode;
5155 int SSL_get_shutdown(const SSL *s)
5157 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5159 /* TODO(QUIC): Do we want this for QUIC? */
5163 return sc->shutdown;
5166 int SSL_version(const SSL *s)
5168 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5170 #ifndef OPENSSL_NO_QUIC
5171 /* We only support QUICv1 - so if its QUIC its QUICv1 */
5172 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
5173 return OSSL_QUIC1_VERSION;
5175 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
5182 int SSL_client_version(const SSL *s)
5184 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5186 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
5190 return sc->client_version;
5193 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
5198 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
5201 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
5203 /* TODO(QUIC): Do we need this for QUIC support? */
5207 if (ssl->ctx == ctx)
5210 ctx = sc->session_ctx;
5211 new_cert = ssl_cert_dup(ctx->cert);
5212 if (new_cert == NULL) {
5216 if (!custom_exts_copy_flags(&new_cert->custext, &sc->cert->custext)) {
5217 ssl_cert_free(new_cert);
5221 ssl_cert_free(sc->cert);
5222 sc->cert = new_cert;
5225 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
5226 * so setter APIs must prevent invalid lengths from entering the system.
5228 if (!ossl_assert(sc->sid_ctx_length <= sizeof(sc->sid_ctx)))
5232 * If the session ID context matches that of the parent SSL_CTX,
5233 * inherit it from the new SSL_CTX as well. If however the context does
5234 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
5235 * leave it unchanged.
5237 if ((ssl->ctx != NULL) &&
5238 (sc->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
5239 (memcmp(sc->sid_ctx, ssl->ctx->sid_ctx, sc->sid_ctx_length) == 0)) {
5240 sc->sid_ctx_length = ctx->sid_ctx_length;
5241 memcpy(&sc->sid_ctx, &ctx->sid_ctx, sizeof(sc->sid_ctx));
5244 SSL_CTX_up_ref(ctx);
5245 SSL_CTX_free(ssl->ctx); /* decrement reference count */
5251 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
5253 return X509_STORE_set_default_paths_ex(ctx->cert_store, ctx->libctx,
5257 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
5259 X509_LOOKUP *lookup;
5261 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
5265 /* We ignore errors, in case the directory doesn't exist */
5268 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
5275 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
5277 X509_LOOKUP *lookup;
5279 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
5283 /* We ignore errors, in case the file doesn't exist */
5286 X509_LOOKUP_load_file_ex(lookup, NULL, X509_FILETYPE_DEFAULT, ctx->libctx,
5294 int SSL_CTX_set_default_verify_store(SSL_CTX *ctx)
5296 X509_LOOKUP *lookup;
5298 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_store());
5302 /* We ignore errors, in case the directory doesn't exist */
5305 X509_LOOKUP_add_store_ex(lookup, NULL, ctx->libctx, ctx->propq);
5312 int SSL_CTX_load_verify_file(SSL_CTX *ctx, const char *CAfile)
5314 return X509_STORE_load_file_ex(ctx->cert_store, CAfile, ctx->libctx,
5318 int SSL_CTX_load_verify_dir(SSL_CTX *ctx, const char *CApath)
5320 return X509_STORE_load_path(ctx->cert_store, CApath);
5323 int SSL_CTX_load_verify_store(SSL_CTX *ctx, const char *CAstore)
5325 return X509_STORE_load_store_ex(ctx->cert_store, CAstore, ctx->libctx,
5329 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
5332 if (CAfile == NULL && CApath == NULL)
5334 if (CAfile != NULL && !SSL_CTX_load_verify_file(ctx, CAfile))
5336 if (CApath != NULL && !SSL_CTX_load_verify_dir(ctx, CApath))
5341 void SSL_set_info_callback(SSL *ssl,
5342 void (*cb) (const SSL *ssl, int type, int val))
5344 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5349 sc->info_callback = cb;
5353 * One compiler (Diab DCC) doesn't like argument names in returned function
5356 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
5359 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5364 return sc->info_callback;
5367 void SSL_set_verify_result(SSL *ssl, long arg)
5369 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5374 sc->verify_result = arg;
5377 long SSL_get_verify_result(const SSL *ssl)
5379 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5384 return sc->verify_result;
5387 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
5389 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5395 return sizeof(sc->s3.client_random);
5396 if (outlen > sizeof(sc->s3.client_random))
5397 outlen = sizeof(sc->s3.client_random);
5398 memcpy(out, sc->s3.client_random, outlen);
5402 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
5404 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5410 return sizeof(sc->s3.server_random);
5411 if (outlen > sizeof(sc->s3.server_random))
5412 outlen = sizeof(sc->s3.server_random);
5413 memcpy(out, sc->s3.server_random, outlen);
5417 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
5418 unsigned char *out, size_t outlen)
5421 return session->master_key_length;
5422 if (outlen > session->master_key_length)
5423 outlen = session->master_key_length;
5424 memcpy(out, session->master_key, outlen);
5428 int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
5431 if (len > sizeof(sess->master_key))
5434 memcpy(sess->master_key, in, len);
5435 sess->master_key_length = len;
5440 int SSL_set_ex_data(SSL *s, int idx, void *arg)
5442 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5445 void *SSL_get_ex_data(const SSL *s, int idx)
5447 return CRYPTO_get_ex_data(&s->ex_data, idx);
5450 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
5452 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5455 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
5457 return CRYPTO_get_ex_data(&s->ex_data, idx);
5460 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
5462 return ctx->cert_store;
5465 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
5467 X509_STORE_free(ctx->cert_store);
5468 ctx->cert_store = store;
5471 void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
5474 X509_STORE_up_ref(store);
5475 SSL_CTX_set_cert_store(ctx, store);
5478 int SSL_want(const SSL *s)
5480 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5488 #ifndef OPENSSL_NO_PSK
5489 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
5491 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5492 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5495 OPENSSL_free(ctx->cert->psk_identity_hint);
5496 if (identity_hint != NULL) {
5497 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5498 if (ctx->cert->psk_identity_hint == NULL)
5501 ctx->cert->psk_identity_hint = NULL;
5505 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
5507 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5512 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5513 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5516 OPENSSL_free(sc->cert->psk_identity_hint);
5517 if (identity_hint != NULL) {
5518 sc->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5519 if (sc->cert->psk_identity_hint == NULL)
5522 sc->cert->psk_identity_hint = NULL;
5526 const char *SSL_get_psk_identity_hint(const SSL *s)
5528 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5530 if (sc == NULL || sc->session == NULL)
5533 return sc->session->psk_identity_hint;
5536 const char *SSL_get_psk_identity(const SSL *s)
5538 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5540 if (sc == NULL || sc->session == NULL)
5543 return sc->session->psk_identity;
5546 void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
5548 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5553 sc->psk_client_callback = cb;
5556 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
5558 ctx->psk_client_callback = cb;
5561 void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
5563 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5568 sc->psk_server_callback = cb;
5571 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
5573 ctx->psk_server_callback = cb;
5577 void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
5579 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5584 sc->psk_find_session_cb = cb;
5587 void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
5588 SSL_psk_find_session_cb_func cb)
5590 ctx->psk_find_session_cb = cb;
5593 void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
5595 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5600 sc->psk_use_session_cb = cb;
5603 void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
5604 SSL_psk_use_session_cb_func cb)
5606 ctx->psk_use_session_cb = cb;
5609 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
5610 void (*cb) (int write_p, int version,
5611 int content_type, const void *buf,
5612 size_t len, SSL *ssl, void *arg))
5614 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5617 void SSL_set_msg_callback(SSL *ssl,
5618 void (*cb) (int write_p, int version,
5619 int content_type, const void *buf,
5620 size_t len, SSL *ssl, void *arg))
5622 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5625 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
5626 int (*cb) (SSL *ssl,
5630 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5631 (void (*)(void))cb);
5634 void SSL_set_not_resumable_session_callback(SSL *ssl,
5635 int (*cb) (SSL *ssl,
5636 int is_forward_secure))
5638 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5639 (void (*)(void))cb);
5642 void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
5643 size_t (*cb) (SSL *ssl, int type,
5644 size_t len, void *arg))
5646 ctx->record_padding_cb = cb;
5649 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
5651 ctx->record_padding_arg = arg;
5654 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
5656 return ctx->record_padding_arg;
5659 int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
5661 /* block size of 0 or 1 is basically no padding */
5662 if (block_size == 1)
5663 ctx->block_padding = 0;
5664 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5665 ctx->block_padding = block_size;
5671 int SSL_set_record_padding_callback(SSL *ssl,
5672 size_t (*cb) (SSL *ssl, int type,
5673 size_t len, void *arg))
5676 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5678 if (sc == NULL || IS_QUIC_SSL(ssl))
5681 b = SSL_get_wbio(ssl);
5682 if (b == NULL || !BIO_get_ktls_send(b)) {
5683 sc->rlayer.record_padding_cb = cb;
5689 void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
5691 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5696 sc->rlayer.record_padding_arg = arg;
5699 void *SSL_get_record_padding_callback_arg(const SSL *ssl)
5701 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5706 return sc->rlayer.record_padding_arg;
5709 int SSL_set_block_padding(SSL *ssl, size_t block_size)
5711 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5713 if (sc == NULL || (IS_QUIC_SSL(ssl) && block_size > 1))
5716 /* block size of 0 or 1 is basically no padding */
5717 if (block_size == 1)
5718 sc->rlayer.block_padding = 0;
5719 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5720 sc->rlayer.block_padding = block_size;
5726 int SSL_set_num_tickets(SSL *s, size_t num_tickets)
5728 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5733 sc->num_tickets = num_tickets;
5738 size_t SSL_get_num_tickets(const SSL *s)
5740 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5745 return sc->num_tickets;
5748 int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
5750 ctx->num_tickets = num_tickets;
5755 size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
5757 return ctx->num_tickets;
5760 /* Retrieve handshake hashes */
5761 int ssl_handshake_hash(SSL_CONNECTION *s,
5762 unsigned char *out, size_t outlen,
5765 EVP_MD_CTX *ctx = NULL;
5766 EVP_MD_CTX *hdgst = s->s3.handshake_dgst;
5767 int hashleni = EVP_MD_CTX_get_size(hdgst);
5770 if (hashleni < 0 || (size_t)hashleni > outlen) {
5771 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5775 ctx = EVP_MD_CTX_new();
5777 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5781 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
5782 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
5783 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5787 *hashlen = hashleni;
5791 EVP_MD_CTX_free(ctx);
5795 int SSL_session_reused(const SSL *s)
5797 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5805 int SSL_is_server(const SSL *s)
5807 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5815 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
5816 void SSL_set_debug(SSL *s, int debug)
5818 /* Old function was do-nothing anyway... */
5824 void SSL_set_security_level(SSL *s, int level)
5826 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5831 sc->cert->sec_level = level;
5834 int SSL_get_security_level(const SSL *s)
5836 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5841 return sc->cert->sec_level;
5844 void SSL_set_security_callback(SSL *s,
5845 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5846 int op, int bits, int nid,
5847 void *other, void *ex))
5849 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5854 sc->cert->sec_cb = cb;
5857 int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
5858 const SSL_CTX *ctx, int op,
5859 int bits, int nid, void *other,
5861 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5866 return sc->cert->sec_cb;
5869 void SSL_set0_security_ex_data(SSL *s, void *ex)
5871 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5876 sc->cert->sec_ex = ex;
5879 void *SSL_get0_security_ex_data(const SSL *s)
5881 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5886 return sc->cert->sec_ex;
5889 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
5891 ctx->cert->sec_level = level;
5894 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
5896 return ctx->cert->sec_level;
5899 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
5900 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5901 int op, int bits, int nid,
5902 void *other, void *ex))
5904 ctx->cert->sec_cb = cb;
5907 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
5913 return ctx->cert->sec_cb;
5916 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
5918 ctx->cert->sec_ex = ex;
5921 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
5923 return ctx->cert->sec_ex;
5926 uint64_t SSL_CTX_get_options(const SSL_CTX *ctx)
5928 return ctx->options;
5931 uint64_t SSL_get_options(const SSL *s)
5933 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5935 #ifndef OPENSSL_NO_QUIC
5937 return ossl_quic_get_options(s);
5946 uint64_t SSL_CTX_set_options(SSL_CTX *ctx, uint64_t op)
5948 return ctx->options |= op;
5951 uint64_t SSL_set_options(SSL *s, uint64_t op)
5954 OSSL_PARAM options[2], *opts = options;
5956 #ifndef OPENSSL_NO_QUIC
5958 return ossl_quic_set_options(s, op);
5961 sc = SSL_CONNECTION_FROM_SSL(s);
5967 *opts++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS,
5969 *opts = OSSL_PARAM_construct_end();
5971 /* Ignore return value */
5972 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
5977 uint64_t SSL_CTX_clear_options(SSL_CTX *ctx, uint64_t op)
5979 return ctx->options &= ~op;
5982 uint64_t SSL_clear_options(SSL *s, uint64_t op)
5984 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5986 #ifndef OPENSSL_NO_QUIC
5988 return ossl_quic_clear_options(s, op);
5994 return sc->options &= ~op;
5997 STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
5999 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6004 return sc->verified_chain;
6007 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
6009 #ifndef OPENSSL_NO_CT
6012 * Moves SCTs from the |src| stack to the |dst| stack.
6013 * The source of each SCT will be set to |origin|.
6014 * If |dst| points to a NULL pointer, a new stack will be created and owned by
6016 * Returns the number of SCTs moved, or a negative integer if an error occurs.
6018 static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
6019 sct_source_t origin)
6025 *dst = sk_SCT_new_null();
6027 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6032 while ((sct = sk_SCT_pop(src)) != NULL) {
6033 if (SCT_set_source(sct, origin) != 1)
6036 if (sk_SCT_push(*dst, sct) <= 0)
6044 sk_SCT_push(src, sct); /* Put the SCT back */
6049 * Look for data collected during ServerHello and parse if found.
6050 * Returns the number of SCTs extracted.
6052 static int ct_extract_tls_extension_scts(SSL_CONNECTION *s)
6054 int scts_extracted = 0;
6056 if (s->ext.scts != NULL) {
6057 const unsigned char *p = s->ext.scts;
6058 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
6060 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
6062 SCT_LIST_free(scts);
6065 return scts_extracted;
6069 * Checks for an OCSP response and then attempts to extract any SCTs found if it
6070 * contains an SCT X509 extension. They will be stored in |s->scts|.
6072 * - The number of SCTs extracted, assuming an OCSP response exists.
6073 * - 0 if no OCSP response exists or it contains no SCTs.
6074 * - A negative integer if an error occurs.
6076 static int ct_extract_ocsp_response_scts(SSL_CONNECTION *s)
6078 # ifndef OPENSSL_NO_OCSP
6079 int scts_extracted = 0;
6080 const unsigned char *p;
6081 OCSP_BASICRESP *br = NULL;
6082 OCSP_RESPONSE *rsp = NULL;
6083 STACK_OF(SCT) *scts = NULL;
6086 if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
6089 p = s->ext.ocsp.resp;
6090 rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
6094 br = OCSP_response_get1_basic(rsp);
6098 for (i = 0; i < OCSP_resp_count(br); ++i) {
6099 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
6105 OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
6107 ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
6108 if (scts_extracted < 0)
6112 SCT_LIST_free(scts);
6113 OCSP_BASICRESP_free(br);
6114 OCSP_RESPONSE_free(rsp);
6115 return scts_extracted;
6117 /* Behave as if no OCSP response exists */
6123 * Attempts to extract SCTs from the peer certificate.
6124 * Return the number of SCTs extracted, or a negative integer if an error
6127 static int ct_extract_x509v3_extension_scts(SSL_CONNECTION *s)
6129 int scts_extracted = 0;
6130 X509 *cert = s->session != NULL ? s->session->peer : NULL;
6133 STACK_OF(SCT) *scts =
6134 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
6137 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
6139 SCT_LIST_free(scts);
6142 return scts_extracted;
6146 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
6147 * response (if it exists) and X509v3 extensions in the certificate.
6148 * Returns NULL if an error occurs.
6150 const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
6152 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6157 if (!sc->scts_parsed) {
6158 if (ct_extract_tls_extension_scts(sc) < 0 ||
6159 ct_extract_ocsp_response_scts(sc) < 0 ||
6160 ct_extract_x509v3_extension_scts(sc) < 0)
6163 sc->scts_parsed = 1;
6170 static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx,
6171 const STACK_OF(SCT) *scts, void *unused_arg)
6176 static int ct_strict(const CT_POLICY_EVAL_CTX * ctx,
6177 const STACK_OF(SCT) *scts, void *unused_arg)
6179 int count = scts != NULL ? sk_SCT_num(scts) : 0;
6182 for (i = 0; i < count; ++i) {
6183 SCT *sct = sk_SCT_value(scts, i);
6184 int status = SCT_get_validation_status(sct);
6186 if (status == SCT_VALIDATION_STATUS_VALID)
6189 ERR_raise(ERR_LIB_SSL, SSL_R_NO_VALID_SCTS);
6193 int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
6196 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6202 * Since code exists that uses the custom extension handler for CT, look
6203 * for this and throw an error if they have already registered to use CT.
6205 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
6206 TLSEXT_TYPE_signed_certificate_timestamp))
6208 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
6212 if (callback != NULL) {
6214 * If we are validating CT, then we MUST accept SCTs served via OCSP
6216 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
6220 sc->ct_validation_callback = callback;
6221 sc->ct_validation_callback_arg = arg;
6226 int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
6227 ssl_ct_validation_cb callback, void *arg)
6230 * Since code exists that uses the custom extension handler for CT, look for
6231 * this and throw an error if they have already registered to use CT.
6233 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
6234 TLSEXT_TYPE_signed_certificate_timestamp))
6236 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
6240 ctx->ct_validation_callback = callback;
6241 ctx->ct_validation_callback_arg = arg;
6245 int SSL_ct_is_enabled(const SSL *s)
6247 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6252 return sc->ct_validation_callback != NULL;
6255 int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
6257 return ctx->ct_validation_callback != NULL;
6260 int ssl_validate_ct(SSL_CONNECTION *s)
6263 X509 *cert = s->session != NULL ? s->session->peer : NULL;
6265 SSL_DANE *dane = &s->dane;
6266 CT_POLICY_EVAL_CTX *ctx = NULL;
6267 const STACK_OF(SCT) *scts;
6270 * If no callback is set, the peer is anonymous, or its chain is invalid,
6271 * skip SCT validation - just return success. Applications that continue
6272 * handshakes without certificates, with unverified chains, or pinned leaf
6273 * certificates are outside the scope of the WebPKI and CT.
6275 * The above exclusions notwithstanding the vast majority of peers will
6276 * have rather ordinary certificate chains validated by typical
6277 * applications that perform certificate verification and therefore will
6278 * process SCTs when enabled.
6280 if (s->ct_validation_callback == NULL || cert == NULL ||
6281 s->verify_result != X509_V_OK ||
6282 s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
6286 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
6287 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
6289 if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
6290 switch (dane->mtlsa->usage) {
6291 case DANETLS_USAGE_DANE_TA:
6292 case DANETLS_USAGE_DANE_EE:
6297 ctx = CT_POLICY_EVAL_CTX_new_ex(SSL_CONNECTION_GET_CTX(s)->libctx,
6298 SSL_CONNECTION_GET_CTX(s)->propq);
6300 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CT_LIB);
6304 issuer = sk_X509_value(s->verified_chain, 1);
6305 CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
6306 CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
6307 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx,
6308 SSL_CONNECTION_GET_CTX(s)->ctlog_store);
6309 CT_POLICY_EVAL_CTX_set_time(
6310 ctx, (uint64_t)SSL_SESSION_get_time(s->session) * 1000);
6312 scts = SSL_get0_peer_scts(SSL_CONNECTION_GET_SSL(s));
6315 * This function returns success (> 0) only when all the SCTs are valid, 0
6316 * when some are invalid, and < 0 on various internal errors (out of
6317 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
6318 * reason to abort the handshake, that decision is up to the callback.
6319 * Therefore, we error out only in the unexpected case that the return
6320 * value is negative.
6322 * XXX: One might well argue that the return value of this function is an
6323 * unfortunate design choice. Its job is only to determine the validation
6324 * status of each of the provided SCTs. So long as it correctly separates
6325 * the wheat from the chaff it should return success. Failure in this case
6326 * ought to correspond to an inability to carry out its duties.
6328 if (SCT_LIST_validate(scts, ctx) < 0) {
6329 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_SCT_VERIFICATION_FAILED);
6333 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
6335 ret = 0; /* This function returns 0 on failure */
6337 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_CALLBACK_FAILED);
6340 CT_POLICY_EVAL_CTX_free(ctx);
6342 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
6343 * failure return code here. Also the application may wish the complete
6344 * the handshake, and then disconnect cleanly at a higher layer, after
6345 * checking the verification status of the completed connection.
6347 * We therefore force a certificate verification failure which will be
6348 * visible via SSL_get_verify_result() and cached as part of any resumed
6351 * Note: the permissive callback is for information gathering only, always
6352 * returns success, and does not affect verification status. Only the
6353 * strict callback or a custom application-specified callback can trigger
6354 * connection failure or record a verification error.
6357 s->verify_result = X509_V_ERR_NO_VALID_SCTS;
6361 int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
6363 switch (validation_mode) {
6365 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6367 case SSL_CT_VALIDATION_PERMISSIVE:
6368 return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
6369 case SSL_CT_VALIDATION_STRICT:
6370 return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
6374 int SSL_enable_ct(SSL *s, int validation_mode)
6376 switch (validation_mode) {
6378 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6380 case SSL_CT_VALIDATION_PERMISSIVE:
6381 return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
6382 case SSL_CT_VALIDATION_STRICT:
6383 return SSL_set_ct_validation_callback(s, ct_strict, NULL);
6387 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
6389 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
6392 int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
6394 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
6397 void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs)
6399 CTLOG_STORE_free(ctx->ctlog_store);
6400 ctx->ctlog_store = logs;
6403 const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
6405 return ctx->ctlog_store;
6408 #endif /* OPENSSL_NO_CT */
6410 void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
6413 c->client_hello_cb = cb;
6414 c->client_hello_cb_arg = arg;
6417 int SSL_client_hello_isv2(SSL *s)
6419 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6424 if (sc->clienthello == NULL)
6426 return sc->clienthello->isv2;
6429 unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
6431 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6436 if (sc->clienthello == NULL)
6438 return sc->clienthello->legacy_version;
6441 size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out)
6443 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6448 if (sc->clienthello == NULL)
6451 *out = sc->clienthello->random;
6452 return SSL3_RANDOM_SIZE;
6455 size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
6457 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6462 if (sc->clienthello == NULL)
6465 *out = sc->clienthello->session_id;
6466 return sc->clienthello->session_id_len;
6469 size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
6471 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6476 if (sc->clienthello == NULL)
6479 *out = PACKET_data(&sc->clienthello->ciphersuites);
6480 return PACKET_remaining(&sc->clienthello->ciphersuites);
6483 size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
6485 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6490 if (sc->clienthello == NULL)
6493 *out = sc->clienthello->compressions;
6494 return sc->clienthello->compressions_len;
6497 int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
6502 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6507 if (sc->clienthello == NULL || out == NULL || outlen == NULL)
6509 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6510 ext = sc->clienthello->pre_proc_exts + i;
6519 if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL)
6521 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6522 ext = sc->clienthello->pre_proc_exts + i;
6524 if (ext->received_order >= num)
6526 present[ext->received_order] = ext->type;
6533 OPENSSL_free(present);
6537 int SSL_client_hello_get_extension_order(SSL *s, uint16_t *exts, size_t *num_exts)
6541 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6546 if (sc->clienthello == NULL || num_exts == NULL)
6548 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6549 ext = sc->clienthello->pre_proc_exts + i;
6561 if (*num_exts < num)
6563 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6564 ext = sc->clienthello->pre_proc_exts + i;
6566 if (ext->received_order >= num)
6568 exts[ext->received_order] = ext->type;
6575 int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
6580 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6585 if (sc->clienthello == NULL)
6587 for (i = 0; i < sc->clienthello->pre_proc_exts_len; ++i) {
6588 r = sc->clienthello->pre_proc_exts + i;
6589 if (r->present && r->type == type) {
6591 *out = PACKET_data(&r->data);
6593 *outlen = PACKET_remaining(&r->data);
6600 int SSL_free_buffers(SSL *ssl)
6603 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6608 /* QUIC buffers are always 'in use'. */
6609 if (IS_QUIC_SSL(ssl))
6614 return rl->rrlmethod->free_buffers(rl->rrl)
6615 && rl->wrlmethod->free_buffers(rl->wrl);
6618 int SSL_alloc_buffers(SSL *ssl)
6621 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6626 /* QUIC always has buffers allocated. */
6627 if (IS_QUIC_SSL(ssl))
6632 return rl->rrlmethod->alloc_buffers(rl->rrl)
6633 && rl->wrlmethod->alloc_buffers(rl->wrl);
6636 void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
6638 ctx->keylog_callback = cb;
6641 SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
6643 return ctx->keylog_callback;
6646 static int nss_keylog_int(const char *prefix,
6648 const uint8_t *parameter_1,
6649 size_t parameter_1_len,
6650 const uint8_t *parameter_2,
6651 size_t parameter_2_len)
6654 char *cursor = NULL;
6658 SSL_CTX *sctx = SSL_CONNECTION_GET_CTX(sc);
6660 if (sctx->keylog_callback == NULL)
6664 * Our output buffer will contain the following strings, rendered with
6665 * space characters in between, terminated by a NULL character: first the
6666 * prefix, then the first parameter, then the second parameter. The
6667 * meaning of each parameter depends on the specific key material being
6668 * logged. Note that the first and second parameters are encoded in
6669 * hexadecimal, so we need a buffer that is twice their lengths.
6671 prefix_len = strlen(prefix);
6672 out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
6673 if ((out = cursor = OPENSSL_malloc(out_len)) == NULL)
6676 strcpy(cursor, prefix);
6677 cursor += prefix_len;
6680 for (i = 0; i < parameter_1_len; i++) {
6681 sprintf(cursor, "%02x", parameter_1[i]);
6686 for (i = 0; i < parameter_2_len; i++) {
6687 sprintf(cursor, "%02x", parameter_2[i]);
6692 sctx->keylog_callback(SSL_CONNECTION_GET_SSL(sc), (const char *)out);
6693 OPENSSL_clear_free(out, out_len);
6698 int ssl_log_rsa_client_key_exchange(SSL_CONNECTION *sc,
6699 const uint8_t *encrypted_premaster,
6700 size_t encrypted_premaster_len,
6701 const uint8_t *premaster,
6702 size_t premaster_len)
6704 if (encrypted_premaster_len < 8) {
6705 SSLfatal(sc, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6709 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
6710 return nss_keylog_int("RSA",
6712 encrypted_premaster,
6718 int ssl_log_secret(SSL_CONNECTION *sc,
6720 const uint8_t *secret,
6723 return nss_keylog_int(label,
6725 sc->s3.client_random,
6731 #define SSLV2_CIPHER_LEN 3
6733 int ssl_cache_cipherlist(SSL_CONNECTION *s, PACKET *cipher_suites, int sslv2format)
6737 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6739 if (PACKET_remaining(cipher_suites) == 0) {
6740 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6744 if (PACKET_remaining(cipher_suites) % n != 0) {
6745 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6749 OPENSSL_free(s->s3.tmp.ciphers_raw);
6750 s->s3.tmp.ciphers_raw = NULL;
6751 s->s3.tmp.ciphers_rawlen = 0;
6754 size_t numciphers = PACKET_remaining(cipher_suites) / n;
6755 PACKET sslv2ciphers = *cipher_suites;
6756 unsigned int leadbyte;
6760 * We store the raw ciphers list in SSLv3+ format so we need to do some
6761 * preprocessing to convert the list first. If there are any SSLv2 only
6762 * ciphersuites with a non-zero leading byte then we are going to
6763 * slightly over allocate because we won't store those. But that isn't a
6766 raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
6767 s->s3.tmp.ciphers_raw = raw;
6769 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6772 for (s->s3.tmp.ciphers_rawlen = 0;
6773 PACKET_remaining(&sslv2ciphers) > 0;
6774 raw += TLS_CIPHER_LEN) {
6775 if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
6777 && !PACKET_copy_bytes(&sslv2ciphers, raw,
6780 && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
6781 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_PACKET);
6782 OPENSSL_free(s->s3.tmp.ciphers_raw);
6783 s->s3.tmp.ciphers_raw = NULL;
6784 s->s3.tmp.ciphers_rawlen = 0;
6788 s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN;
6790 } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw,
6791 &s->s3.tmp.ciphers_rawlen)) {
6792 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6798 int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
6799 int isv2format, STACK_OF(SSL_CIPHER) **sk,
6800 STACK_OF(SSL_CIPHER) **scsvs)
6803 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6808 if (!PACKET_buf_init(&pkt, bytes, len))
6810 return ossl_bytes_to_cipher_list(sc, &pkt, sk, scsvs, isv2format, 0);
6813 int ossl_bytes_to_cipher_list(SSL_CONNECTION *s, PACKET *cipher_suites,
6814 STACK_OF(SSL_CIPHER) **skp,
6815 STACK_OF(SSL_CIPHER) **scsvs_out,
6816 int sslv2format, int fatal)
6818 const SSL_CIPHER *c;
6819 STACK_OF(SSL_CIPHER) *sk = NULL;
6820 STACK_OF(SSL_CIPHER) *scsvs = NULL;
6822 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
6823 unsigned char cipher[SSLV2_CIPHER_LEN];
6825 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6827 if (PACKET_remaining(cipher_suites) == 0) {
6829 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6831 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHERS_SPECIFIED);
6835 if (PACKET_remaining(cipher_suites) % n != 0) {
6837 SSLfatal(s, SSL_AD_DECODE_ERROR,
6838 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6840 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6844 sk = sk_SSL_CIPHER_new_null();
6845 scsvs = sk_SSL_CIPHER_new_null();
6846 if (sk == NULL || scsvs == NULL) {
6848 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6850 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6854 while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
6856 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
6857 * first byte set to zero, while true SSLv2 ciphers have a non-zero
6858 * first byte. We don't support any true SSLv2 ciphers, so skip them.
6860 if (sslv2format && cipher[0] != '\0')
6863 /* For SSLv2-compat, ignore leading 0-byte. */
6864 c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
6866 if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
6867 (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
6869 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6871 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6876 if (PACKET_remaining(cipher_suites) > 0) {
6878 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_LENGTH);
6880 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
6887 sk_SSL_CIPHER_free(sk);
6888 if (scsvs_out != NULL)
6891 sk_SSL_CIPHER_free(scsvs);
6894 sk_SSL_CIPHER_free(sk);
6895 sk_SSL_CIPHER_free(scsvs);
6899 int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
6901 ctx->max_early_data = max_early_data;
6906 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
6908 return ctx->max_early_data;
6911 int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
6913 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6915 if (sc == NULL || IS_QUIC_SSL(s))
6918 sc->max_early_data = max_early_data;
6923 uint32_t SSL_get_max_early_data(const SSL *s)
6925 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6930 return sc->max_early_data;
6933 int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
6935 ctx->recv_max_early_data = recv_max_early_data;
6940 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
6942 return ctx->recv_max_early_data;
6945 int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
6947 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6949 if (sc == NULL || IS_QUIC_SSL(s))
6952 sc->recv_max_early_data = recv_max_early_data;
6957 uint32_t SSL_get_recv_max_early_data(const SSL *s)
6959 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6964 return sc->recv_max_early_data;
6967 __owur unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION *sc)
6969 /* Return any active Max Fragment Len extension */
6970 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session))
6971 return GET_MAX_FRAGMENT_LENGTH(sc->session);
6973 /* return current SSL connection setting */
6974 return sc->max_send_fragment;
6977 __owur unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION *sc)
6979 /* Return a value regarding an active Max Fragment Len extension */
6980 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session)
6981 && sc->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(sc->session))
6982 return GET_MAX_FRAGMENT_LENGTH(sc->session);
6984 /* else limit |split_send_fragment| to current |max_send_fragment| */
6985 if (sc->split_send_fragment > sc->max_send_fragment)
6986 return sc->max_send_fragment;
6988 /* return current SSL connection setting */
6989 return sc->split_send_fragment;
6992 int SSL_stateless(SSL *s)
6995 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6997 if (sc == NULL || IS_QUIC_SSL(s))
7000 /* Ensure there is no state left over from a previous invocation */
7006 sc->s3.flags |= TLS1_FLAGS_STATELESS;
7007 ret = SSL_accept(s);
7008 sc->s3.flags &= ~TLS1_FLAGS_STATELESS;
7010 if (ret > 0 && sc->ext.cookieok)
7013 if (sc->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(sc))
7019 void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
7021 ctx->pha_enabled = val;
7024 void SSL_set_post_handshake_auth(SSL *ssl, int val)
7026 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
7027 #ifndef OPENSSL_NO_QUIC
7028 QUIC_CONNECTION *qc = QUIC_CONNECTION_FROM_SSL(ssl);
7037 sc->pha_enabled = val;
7040 int SSL_verify_client_post_handshake(SSL *ssl)
7042 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
7043 #ifndef OPENSSL_NO_QUIC
7044 QUIC_CONNECTION *qc = QUIC_CONNECTION_FROM_SSL(ssl);
7047 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
7055 if (!SSL_CONNECTION_IS_TLS13(sc)) {
7056 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
7060 ERR_raise(ERR_LIB_SSL, SSL_R_NOT_SERVER);
7064 if (!SSL_is_init_finished(ssl)) {
7065 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
7069 switch (sc->post_handshake_auth) {
7071 ERR_raise(ERR_LIB_SSL, SSL_R_EXTENSION_NOT_RECEIVED);
7074 case SSL_PHA_EXT_SENT:
7075 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
7077 case SSL_PHA_EXT_RECEIVED:
7079 case SSL_PHA_REQUEST_PENDING:
7080 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_PENDING);
7082 case SSL_PHA_REQUESTED:
7083 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_SENT);
7087 sc->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
7089 /* checks verify_mode and algorithm_auth */
7090 if (!send_certificate_request(sc)) {
7091 sc->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
7092 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CONFIG);
7096 ossl_statem_set_in_init(sc, 1);
7100 int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
7101 SSL_CTX_generate_session_ticket_fn gen_cb,
7102 SSL_CTX_decrypt_session_ticket_fn dec_cb,
7105 ctx->generate_ticket_cb = gen_cb;
7106 ctx->decrypt_ticket_cb = dec_cb;
7107 ctx->ticket_cb_data = arg;
7111 void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
7112 SSL_allow_early_data_cb_fn cb,
7115 ctx->allow_early_data_cb = cb;
7116 ctx->allow_early_data_cb_data = arg;
7119 void SSL_set_allow_early_data_cb(SSL *s,
7120 SSL_allow_early_data_cb_fn cb,
7123 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7125 if (sc == NULL || IS_QUIC_SSL(s))
7128 sc->allow_early_data_cb = cb;
7129 sc->allow_early_data_cb_data = arg;
7132 const EVP_CIPHER *ssl_evp_cipher_fetch(OSSL_LIB_CTX *libctx,
7134 const char *properties)
7136 const EVP_CIPHER *ciph;
7138 ciph = tls_get_cipher_from_engine(nid);
7143 * If there is no engine cipher then we do an explicit fetch. This may fail
7144 * and that could be ok
7147 ciph = EVP_CIPHER_fetch(libctx, OBJ_nid2sn(nid), properties);
7153 int ssl_evp_cipher_up_ref(const EVP_CIPHER *cipher)
7155 /* Don't up-ref an implicit EVP_CIPHER */
7156 if (EVP_CIPHER_get0_provider(cipher) == NULL)
7160 * The cipher was explicitly fetched and therefore it is safe to cast
7163 return EVP_CIPHER_up_ref((EVP_CIPHER *)cipher);
7166 void ssl_evp_cipher_free(const EVP_CIPHER *cipher)
7171 if (EVP_CIPHER_get0_provider(cipher) != NULL) {
7173 * The cipher was explicitly fetched and therefore it is safe to cast
7176 EVP_CIPHER_free((EVP_CIPHER *)cipher);
7180 const EVP_MD *ssl_evp_md_fetch(OSSL_LIB_CTX *libctx,
7182 const char *properties)
7186 md = tls_get_digest_from_engine(nid);
7190 /* Otherwise we do an explicit fetch */
7192 md = EVP_MD_fetch(libctx, OBJ_nid2sn(nid), properties);
7197 int ssl_evp_md_up_ref(const EVP_MD *md)
7199 /* Don't up-ref an implicit EVP_MD */
7200 if (EVP_MD_get0_provider(md) == NULL)
7204 * The digest was explicitly fetched and therefore it is safe to cast
7207 return EVP_MD_up_ref((EVP_MD *)md);
7210 void ssl_evp_md_free(const EVP_MD *md)
7215 if (EVP_MD_get0_provider(md) != NULL) {
7217 * The digest was explicitly fetched and therefore it is safe to cast
7220 EVP_MD_free((EVP_MD *)md);
7224 int SSL_set0_tmp_dh_pkey(SSL *s, EVP_PKEY *dhpkey)
7226 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7231 if (!ssl_security(sc, SSL_SECOP_TMP_DH,
7232 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
7233 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
7236 EVP_PKEY_free(sc->cert->dh_tmp);
7237 sc->cert->dh_tmp = dhpkey;
7241 int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX *ctx, EVP_PKEY *dhpkey)
7243 if (!ssl_ctx_security(ctx, SSL_SECOP_TMP_DH,
7244 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
7245 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
7248 EVP_PKEY_free(ctx->cert->dh_tmp);
7249 ctx->cert->dh_tmp = dhpkey;
7253 /* QUIC-specific methods which are supported on QUIC connections only. */
7254 int SSL_handle_events(SSL *s)
7258 #ifndef OPENSSL_NO_QUIC
7260 return ossl_quic_handle_events(s);
7263 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7264 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc))
7266 * DTLSv1_handle_timeout returns 0 if the timer wasn't expired yet,
7267 * which we consider a success case. Theoretically DTLSv1_handle_timeout
7268 * can also return 0 if s is NULL or not a DTLS object, but we've
7269 * already ruled out those possibilities above, so this is not possible
7270 * here. Thus the only failure cases are where DTLSv1_handle_timeout
7273 return DTLSv1_handle_timeout(s) >= 0;
7278 int SSL_get_event_timeout(SSL *s, struct timeval *tv, int *is_infinite)
7282 #ifndef OPENSSL_NO_QUIC
7284 return ossl_quic_get_event_timeout(s, tv, is_infinite);
7287 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7288 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc)
7289 && DTLSv1_get_timeout(s, tv)) {
7294 tv->tv_sec = 1000000;
7300 int SSL_get_rpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7302 #ifndef OPENSSL_NO_QUIC
7306 return ossl_quic_get_rpoll_descriptor(s, desc);
7312 int SSL_get_wpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7314 #ifndef OPENSSL_NO_QUIC
7318 return ossl_quic_get_wpoll_descriptor(s, desc);
7324 int SSL_net_read_desired(SSL *s)
7326 #ifndef OPENSSL_NO_QUIC
7330 return ossl_quic_get_net_read_desired(s);
7336 int SSL_net_write_desired(SSL *s)
7338 #ifndef OPENSSL_NO_QUIC
7342 return ossl_quic_get_net_write_desired(s);
7348 int SSL_set_blocking_mode(SSL *s, int blocking)
7350 #ifndef OPENSSL_NO_QUIC
7354 return ossl_quic_conn_set_blocking_mode(s, blocking);
7360 int SSL_get_blocking_mode(SSL *s)
7362 #ifndef OPENSSL_NO_QUIC
7366 return ossl_quic_conn_get_blocking_mode(s);
7372 int SSL_set_initial_peer_addr(SSL *s, const BIO_ADDR *peer_addr)
7374 #ifndef OPENSSL_NO_QUIC
7378 return ossl_quic_conn_set_initial_peer_addr(s, peer_addr);
7384 int SSL_shutdown_ex(SSL *ssl, uint64_t flags,
7385 const SSL_SHUTDOWN_EX_ARGS *args,
7388 #ifndef OPENSSL_NO_QUIC
7390 return SSL_shutdown(ssl);
7392 return ossl_quic_conn_shutdown(ssl, flags, args, args_len);
7394 return SSL_shutdown(ssl);
7398 int SSL_stream_conclude(SSL *ssl, uint64_t flags)
7400 #ifndef OPENSSL_NO_QUIC
7404 return ossl_quic_conn_stream_conclude(ssl);
7410 SSL *SSL_new_stream(SSL *s, uint64_t flags)
7412 #ifndef OPENSSL_NO_QUIC
7416 return ossl_quic_conn_stream_new(s, flags);
7422 SSL *SSL_get0_connection(SSL *s)
7424 #ifndef OPENSSL_NO_QUIC
7428 return ossl_quic_get0_connection(s);
7434 int SSL_is_connection(SSL *s)
7436 return SSL_get0_connection(s) == s;
7439 int SSL_get_stream_type(SSL *s)
7441 #ifndef OPENSSL_NO_QUIC
7443 return SSL_STREAM_TYPE_BIDI;
7445 return ossl_quic_get_stream_type(s);
7447 return SSL_STREAM_TYPE_BIDI;
7451 uint64_t SSL_get_stream_id(SSL *s)
7453 #ifndef OPENSSL_NO_QUIC
7457 return ossl_quic_get_stream_id(s);
7463 int SSL_set_default_stream_mode(SSL *s, uint32_t mode)
7465 #ifndef OPENSSL_NO_QUIC
7469 return ossl_quic_set_default_stream_mode(s, mode);
7475 int SSL_set_incoming_stream_policy(SSL *s, int policy, uint64_t aec)
7477 #ifndef OPENSSL_NO_QUIC
7481 return ossl_quic_set_incoming_stream_policy(s, policy, aec);
7487 SSL *SSL_accept_stream(SSL *s, uint64_t flags)
7489 #ifndef OPENSSL_NO_QUIC
7493 return ossl_quic_accept_stream(s, flags);
7499 size_t SSL_get_accept_stream_queue_len(SSL *s)
7501 #ifndef OPENSSL_NO_QUIC
7505 return ossl_quic_get_accept_stream_queue_len(s);
7511 int SSL_stream_reset(SSL *s,
7512 const SSL_STREAM_RESET_ARGS *args,
7515 #ifndef OPENSSL_NO_QUIC
7519 return ossl_quic_stream_reset(s, args, args_len);
7525 int SSL_get_stream_read_state(SSL *s)
7527 #ifndef OPENSSL_NO_QUIC
7529 return SSL_STREAM_STATE_NONE;
7531 return ossl_quic_get_stream_read_state(s);
7533 return SSL_STREAM_STATE_NONE;
7537 int SSL_get_stream_write_state(SSL *s)
7539 #ifndef OPENSSL_NO_QUIC
7541 return SSL_STREAM_STATE_NONE;
7543 return ossl_quic_get_stream_write_state(s);
7545 return SSL_STREAM_STATE_NONE;
7549 int SSL_get_stream_read_error_code(SSL *s, uint64_t *app_error_code)
7551 #ifndef OPENSSL_NO_QUIC
7555 return ossl_quic_get_stream_read_error_code(s, app_error_code);
7561 int SSL_get_stream_write_error_code(SSL *s, uint64_t *app_error_code)
7563 #ifndef OPENSSL_NO_QUIC
7567 return ossl_quic_get_stream_write_error_code(s, app_error_code);
7573 int SSL_get_conn_close_info(SSL *s, SSL_CONN_CLOSE_INFO *info,
7576 #ifndef OPENSSL_NO_QUIC
7580 return ossl_quic_get_conn_close_info(s, info, info_len);
7586 int SSL_add_expected_rpk(SSL *s, EVP_PKEY *rpk)
7588 unsigned char *data = NULL;
7589 SSL_DANE *dane = SSL_get0_dane(s);
7592 if (dane == NULL || dane->dctx == NULL)
7594 if ((ret = i2d_PUBKEY(rpk, &data)) <= 0)
7597 ret = SSL_dane_tlsa_add(s, DANETLS_USAGE_DANE_EE,
7598 DANETLS_SELECTOR_SPKI,
7599 DANETLS_MATCHING_FULL,
7600 data, (size_t)ret) > 0;
7605 EVP_PKEY *SSL_get0_peer_rpk(const SSL *s)
7607 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7609 if (sc == NULL || sc->session == NULL)
7611 return sc->session->peer_rpk;
7614 int SSL_get_negotiated_client_cert_type(const SSL *s)
7616 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7621 return sc->ext.client_cert_type;
7624 int SSL_get_negotiated_server_cert_type(const SSL *s)
7626 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7631 return sc->ext.server_cert_type;
7634 static int validate_cert_type(const unsigned char *val, size_t len)
7640 if (val == NULL && len == 0)
7643 if (val == NULL || len == 0)
7646 for (i = 0; i < len; i++) {
7648 case TLSEXT_cert_type_rpk:
7653 case TLSEXT_cert_type_x509:
7658 case TLSEXT_cert_type_pgp:
7659 case TLSEXT_cert_type_1609dot2:
7667 static int set_cert_type(unsigned char **cert_type,
7668 size_t *cert_type_len,
7669 const unsigned char *val,
7672 unsigned char *tmp = NULL;
7674 if (!validate_cert_type(val, len))
7677 if (val != NULL && (tmp = OPENSSL_memdup(val, len)) == NULL)
7680 OPENSSL_free(*cert_type);
7682 *cert_type_len = len;
7686 int SSL_set1_client_cert_type(SSL *s, const unsigned char *val, size_t len)
7688 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7690 return set_cert_type(&sc->client_cert_type, &sc->client_cert_type_len,
7694 int SSL_set1_server_cert_type(SSL *s, const unsigned char *val, size_t len)
7696 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7698 return set_cert_type(&sc->server_cert_type, &sc->server_cert_type_len,
7702 int SSL_CTX_set1_client_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7704 return set_cert_type(&ctx->client_cert_type, &ctx->client_cert_type_len,
7708 int SSL_CTX_set1_server_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7710 return set_cert_type(&ctx->server_cert_type, &ctx->server_cert_type_len,
7714 int SSL_get0_client_cert_type(const SSL *s, unsigned char **t, size_t *len)
7716 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7718 if (t == NULL || len == NULL)
7721 *t = sc->client_cert_type;
7722 *len = sc->client_cert_type_len;
7726 int SSL_get0_server_cert_type(const SSL *s, unsigned char **t, size_t *len)
7728 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7730 if (t == NULL || len == NULL)
7733 *t = sc->server_cert_type;
7734 *len = sc->server_cert_type_len;
7738 int SSL_CTX_get0_client_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7740 if (t == NULL || len == NULL)
7743 *t = ctx->client_cert_type;
7744 *len = ctx->client_cert_type_len;
7748 int SSL_CTX_get0_server_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7750 if (t == NULL || len == NULL)
7753 *t = ctx->server_cert_type;
7754 *len = ctx->server_cert_type_len;