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)
430 int minisdtls = 0, maxisdtls = 0;
432 /* Figure out if we're doing DTLS versions or TLS versions */
433 if (min_version == DTLS1_BAD_VER
434 || min_version >> 8 == DTLS1_VERSION_MAJOR)
436 if (max_version == DTLS1_BAD_VER
437 || max_version >> 8 == DTLS1_VERSION_MAJOR)
439 /* A wildcard version of 0 could be DTLS or TLS. */
440 if ((minisdtls && !maxisdtls && max_version != 0)
441 || (maxisdtls && !minisdtls && min_version != 0)) {
442 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
446 if (minisdtls || maxisdtls) {
447 /* Do DTLS version checks. */
448 if (min_version == 0)
449 /* Ignore DTLS1_BAD_VER */
450 min_version = DTLS1_VERSION;
451 if (max_version == 0)
452 max_version = DTLS1_2_VERSION;
453 #ifdef OPENSSL_NO_DTLS1_2
454 if (max_version == DTLS1_2_VERSION)
455 max_version = DTLS1_VERSION;
457 #ifdef OPENSSL_NO_DTLS1
458 if (min_version == DTLS1_VERSION)
459 min_version = DTLS1_2_VERSION;
461 /* Done massaging versions; do the check. */
463 #ifdef OPENSSL_NO_DTLS1
464 || (DTLS_VERSION_GE(min_version, DTLS1_VERSION)
465 && DTLS_VERSION_GE(DTLS1_VERSION, max_version))
467 #ifdef OPENSSL_NO_DTLS1_2
468 || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION)
469 && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version))
474 /* Regular TLS version checks. */
475 if (min_version == 0)
476 min_version = SSL3_VERSION;
477 if (max_version == 0)
478 max_version = TLS1_3_VERSION;
479 #ifdef OPENSSL_NO_TLS1_3
480 if (max_version == TLS1_3_VERSION)
481 max_version = TLS1_2_VERSION;
483 #ifdef OPENSSL_NO_TLS1_2
484 if (max_version == TLS1_2_VERSION)
485 max_version = TLS1_1_VERSION;
487 #ifdef OPENSSL_NO_TLS1_1
488 if (max_version == TLS1_1_VERSION)
489 max_version = TLS1_VERSION;
491 #ifdef OPENSSL_NO_TLS1
492 if (max_version == TLS1_VERSION)
493 max_version = SSL3_VERSION;
495 #ifdef OPENSSL_NO_SSL3
496 if (min_version == SSL3_VERSION)
497 min_version = TLS1_VERSION;
499 #ifdef OPENSSL_NO_TLS1
500 if (min_version == TLS1_VERSION)
501 min_version = TLS1_1_VERSION;
503 #ifdef OPENSSL_NO_TLS1_1
504 if (min_version == TLS1_1_VERSION)
505 min_version = TLS1_2_VERSION;
507 #ifdef OPENSSL_NO_TLS1_2
508 if (min_version == TLS1_2_VERSION)
509 min_version = TLS1_3_VERSION;
511 /* Done massaging versions; do the check. */
513 #ifdef OPENSSL_NO_SSL3
514 || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version)
516 #ifdef OPENSSL_NO_TLS1
517 || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version)
519 #ifdef OPENSSL_NO_TLS1_1
520 || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version)
522 #ifdef OPENSSL_NO_TLS1_2
523 || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version)
525 #ifdef OPENSSL_NO_TLS1_3
526 || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version)
534 #if defined(__TANDEM) && defined(OPENSSL_VPROC)
536 * Define a VPROC function for HP NonStop build ssl library.
537 * This is used by platform version identification tools.
538 * Do not inline this procedure or make it static.
540 # define OPENSSL_VPROC_STRING_(x) x##_SSL
541 # define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
542 # define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
543 void OPENSSL_VPROC_FUNC(void) {}
546 static int clear_record_layer(SSL_CONNECTION *s)
550 /* We try and reset both record layers even if one fails */
552 ret = ssl_set_new_record_layer(s,
553 SSL_CONNECTION_IS_DTLS(s) ? DTLS_ANY_VERSION
555 OSSL_RECORD_DIRECTION_READ,
556 OSSL_RECORD_PROTECTION_LEVEL_NONE, NULL, 0,
557 NULL, 0, NULL, 0, NULL, 0, NULL, 0,
558 NID_undef, NULL, NULL, NULL);
560 ret &= ssl_set_new_record_layer(s,
561 SSL_CONNECTION_IS_DTLS(s) ? DTLS_ANY_VERSION
563 OSSL_RECORD_DIRECTION_WRITE,
564 OSSL_RECORD_PROTECTION_LEVEL_NONE, NULL, 0,
565 NULL, 0, NULL, 0, NULL, 0, NULL, 0,
566 NID_undef, NULL, NULL, NULL);
568 /* SSLfatal already called in the event of failure */
572 int SSL_clear(SSL *s)
574 if (s->method == NULL) {
575 ERR_raise(ERR_LIB_SSL, SSL_R_NO_METHOD_SPECIFIED);
579 return s->method->ssl_reset(s);
582 int ossl_ssl_connection_reset(SSL *s)
584 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
589 if (ssl_clear_bad_session(sc)) {
590 SSL_SESSION_free(sc->session);
593 SSL_SESSION_free(sc->psksession);
594 sc->psksession = NULL;
595 OPENSSL_free(sc->psksession_id);
596 sc->psksession_id = NULL;
597 sc->psksession_id_len = 0;
598 sc->hello_retry_request = 0;
599 sc->sent_tickets = 0;
605 if (sc->renegotiate) {
606 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
610 ossl_statem_clear(sc);
612 /* TODO(QUIC): Version handling not yet clear */
613 sc->version = s->method->version;
614 sc->client_version = sc->version;
615 sc->rwstate = SSL_NOTHING;
617 BUF_MEM_free(sc->init_buf);
619 sc->first_packet = 0;
621 sc->key_update = SSL_KEY_UPDATE_NONE;
622 memset(sc->ext.compress_certificate_from_peer, 0,
623 sizeof(sc->ext.compress_certificate_from_peer));
624 sc->ext.compress_certificate_sent = 0;
626 EVP_MD_CTX_free(sc->pha_dgst);
629 /* Reset DANE verification result state */
632 X509_free(sc->dane.mcert);
633 sc->dane.mcert = NULL;
634 sc->dane.mtlsa = NULL;
636 /* Clear the verification result peername */
637 X509_VERIFY_PARAM_move_peername(sc->param, NULL);
639 /* Clear any shared connection state */
640 OPENSSL_free(sc->shared_sigalgs);
641 sc->shared_sigalgs = NULL;
642 sc->shared_sigalgslen = 0;
645 * Check to see if we were changed into a different method, if so, revert
648 if (s->method != s->defltmeth) {
649 s->method->ssl_deinit(s);
650 s->method = s->defltmeth;
651 if (!s->method->ssl_init(s))
654 if (!s->method->ssl_clear(s))
658 RECORD_LAYER_clear(&sc->rlayer);
659 BIO_free(sc->rlayer.rrlnext);
660 sc->rlayer.rrlnext = NULL;
662 if (!clear_record_layer(sc))
668 #ifndef OPENSSL_NO_DEPRECATED_3_0
669 /** Used to change an SSL_CTXs default SSL method type */
670 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
672 STACK_OF(SSL_CIPHER) *sk;
676 if (!SSL_CTX_set_ciphersuites(ctx, OSSL_default_ciphersuites())) {
677 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
680 sk = ssl_create_cipher_list(ctx,
681 ctx->tls13_ciphersuites,
683 &(ctx->cipher_list_by_id),
684 OSSL_default_cipher_list(), ctx->cert);
685 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
686 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
693 SSL *SSL_new(SSL_CTX *ctx)
696 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_CTX);
699 if (ctx->method == NULL) {
700 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
703 return ctx->method->ssl_new(ctx);
706 int ossl_ssl_init(SSL *ssl, SSL_CTX *ctx, const SSL_METHOD *method, int type)
711 ssl->lock = CRYPTO_THREAD_lock_new();
712 if (ssl->lock == NULL)
715 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, ssl, &ssl->ex_data)) {
716 CRYPTO_THREAD_lock_free(ssl->lock);
724 ssl->defltmeth = ssl->method = method;
729 SSL *ossl_ssl_connection_new_int(SSL_CTX *ctx, const SSL_METHOD *method)
734 s = OPENSSL_zalloc(sizeof(*s));
739 if (!ossl_ssl_init(ssl, ctx, method, SSL_TYPE_SSL_CONNECTION)) {
746 RECORD_LAYER_init(&s->rlayer, s);
748 s->options = ctx->options;
749 s->dane.flags = ctx->dane.flags;
750 if (method->version == ctx->method->version) {
751 s->min_proto_version = ctx->min_proto_version;
752 s->max_proto_version = ctx->max_proto_version;
755 s->max_cert_list = ctx->max_cert_list;
756 s->max_early_data = ctx->max_early_data;
757 s->recv_max_early_data = ctx->recv_max_early_data;
758 s->num_tickets = ctx->num_tickets;
759 s->pha_enabled = ctx->pha_enabled;
761 /* Shallow copy of the ciphersuites stack */
762 s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
763 if (s->tls13_ciphersuites == NULL)
767 * Earlier library versions used to copy the pointer to the CERT, not
768 * its contents; only when setting new parameters for the per-SSL
769 * copy, ssl_cert_new would be called (and the direct reference to
770 * the per-SSL_CTX settings would be lost, but those still were
771 * indirectly accessed for various purposes, and for that reason they
772 * used to be known as s->ctx->default_cert). Now we don't look at the
773 * SSL_CTX's CERT after having duplicated it once.
775 s->cert = ssl_cert_dup(ctx->cert);
779 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
780 s->msg_callback = ctx->msg_callback;
781 s->msg_callback_arg = ctx->msg_callback_arg;
782 s->verify_mode = ctx->verify_mode;
783 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
784 s->rlayer.record_padding_cb = ctx->record_padding_cb;
785 s->rlayer.record_padding_arg = ctx->record_padding_arg;
786 s->rlayer.block_padding = ctx->block_padding;
787 s->sid_ctx_length = ctx->sid_ctx_length;
788 if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
790 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
791 s->verify_callback = ctx->default_verify_callback;
792 s->generate_session_id = ctx->generate_session_id;
794 s->param = X509_VERIFY_PARAM_new();
795 if (s->param == NULL)
797 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
798 s->quiet_shutdown = ctx->quiet_shutdown;
800 s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
801 s->max_send_fragment = ctx->max_send_fragment;
802 s->split_send_fragment = ctx->split_send_fragment;
803 s->max_pipelines = ctx->max_pipelines;
804 s->rlayer.default_read_buf_len = ctx->default_read_buf_len;
807 s->ext.debug_arg = NULL;
808 s->ext.ticket_expected = 0;
809 s->ext.status_type = ctx->ext.status_type;
810 s->ext.status_expected = 0;
811 s->ext.ocsp.ids = NULL;
812 s->ext.ocsp.exts = NULL;
813 s->ext.ocsp.resp = NULL;
814 s->ext.ocsp.resp_len = 0;
816 s->session_ctx = ctx;
817 if (ctx->ext.ecpointformats) {
818 s->ext.ecpointformats =
819 OPENSSL_memdup(ctx->ext.ecpointformats,
820 ctx->ext.ecpointformats_len);
821 if (!s->ext.ecpointformats) {
822 s->ext.ecpointformats_len = 0;
825 s->ext.ecpointformats_len =
826 ctx->ext.ecpointformats_len;
828 if (ctx->ext.supportedgroups) {
829 s->ext.supportedgroups =
830 OPENSSL_memdup(ctx->ext.supportedgroups,
831 ctx->ext.supportedgroups_len
832 * sizeof(*ctx->ext.supportedgroups));
833 if (!s->ext.supportedgroups) {
834 s->ext.supportedgroups_len = 0;
837 s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
840 #ifndef OPENSSL_NO_NEXTPROTONEG
844 if (ctx->ext.alpn != NULL) {
845 s->ext.alpn = OPENSSL_malloc(ctx->ext.alpn_len);
846 if (s->ext.alpn == NULL) {
850 memcpy(s->ext.alpn, ctx->ext.alpn, ctx->ext.alpn_len);
851 s->ext.alpn_len = ctx->ext.alpn_len;
854 s->verified_chain = NULL;
855 s->verify_result = X509_V_OK;
857 s->default_passwd_callback = ctx->default_passwd_callback;
858 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
860 s->key_update = SSL_KEY_UPDATE_NONE;
862 s->allow_early_data_cb = ctx->allow_early_data_cb;
863 s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
865 if (!method->ssl_init(ssl))
868 s->server = (method->ssl_accept == ssl_undefined_function) ? 0 : 1;
870 if (!method->ssl_reset(ssl))
873 #ifndef OPENSSL_NO_PSK
874 s->psk_client_callback = ctx->psk_client_callback;
875 s->psk_server_callback = ctx->psk_server_callback;
877 s->psk_find_session_cb = ctx->psk_find_session_cb;
878 s->psk_use_session_cb = ctx->psk_use_session_cb;
880 s->async_cb = ctx->async_cb;
881 s->async_cb_arg = ctx->async_cb_arg;
885 #ifndef OPENSSL_NO_COMP_ALG
886 memcpy(s->cert_comp_prefs, ctx->cert_comp_prefs, sizeof(s->cert_comp_prefs));
888 if (ctx->client_cert_type != NULL) {
889 s->client_cert_type = OPENSSL_memdup(ctx->client_cert_type,
890 ctx->client_cert_type_len);
891 if (s->client_cert_type == NULL)
893 s->client_cert_type_len = ctx->client_cert_type_len;
895 if (ctx->server_cert_type != NULL) {
896 s->server_cert_type = OPENSSL_memdup(ctx->server_cert_type,
897 ctx->server_cert_type_len);
898 if (s->server_cert_type == NULL)
900 s->server_cert_type_len = ctx->server_cert_type_len;
903 #ifndef OPENSSL_NO_CT
904 if (!SSL_set_ct_validation_callback(ssl, ctx->ct_validation_callback,
905 ctx->ct_validation_callback_arg))
909 s->ssl_pkey_num = SSL_PKEY_NUM + ctx->sigalg_list_len;
912 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
915 ERR_raise(ERR_LIB_SSL, ERR_R_ASN1_LIB);
918 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
924 SSL *ossl_ssl_connection_new(SSL_CTX *ctx)
926 return ossl_ssl_connection_new_int(ctx, ctx->method);
929 int SSL_is_dtls(const SSL *s)
931 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
933 #ifndef OPENSSL_NO_QUIC
934 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
941 return SSL_CONNECTION_IS_DTLS(sc) ? 1 : 0;
944 int SSL_is_tls(const SSL *s)
946 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
948 #ifndef OPENSSL_NO_QUIC
949 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
956 return SSL_CONNECTION_IS_DTLS(sc) ? 0 : 1;
959 int SSL_is_quic(const SSL *s)
961 #ifndef OPENSSL_NO_QUIC
962 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
968 int SSL_up_ref(SSL *s)
972 if (CRYPTO_UP_REF(&s->references, &i, s->lock) <= 0)
975 REF_PRINT_COUNT("SSL", s);
976 REF_ASSERT_ISNT(i < 2);
977 return ((i > 1) ? 1 : 0);
980 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
981 unsigned int sid_ctx_len)
983 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
984 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
987 ctx->sid_ctx_length = sid_ctx_len;
988 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
993 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
994 unsigned int sid_ctx_len)
996 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1001 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
1002 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
1005 sc->sid_ctx_length = sid_ctx_len;
1006 memcpy(sc->sid_ctx, sid_ctx, sid_ctx_len);
1011 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
1013 if (!CRYPTO_THREAD_write_lock(ctx->lock))
1015 ctx->generate_session_id = cb;
1016 CRYPTO_THREAD_unlock(ctx->lock);
1020 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
1022 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1024 if (sc == NULL || !CRYPTO_THREAD_write_lock(ssl->lock))
1026 sc->generate_session_id = cb;
1027 CRYPTO_THREAD_unlock(ssl->lock);
1031 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
1032 unsigned int id_len)
1035 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
1036 * we can "construct" a session to give us the desired check - i.e. to
1037 * find if there's a session in the hash table that would conflict with
1038 * any new session built out of this id/id_len and the ssl_version in use
1042 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
1044 if (sc == NULL || id_len > sizeof(r.session_id))
1047 r.ssl_version = sc->version;
1048 r.session_id_length = id_len;
1049 memcpy(r.session_id, id, id_len);
1051 if (!CRYPTO_THREAD_read_lock(sc->session_ctx->lock))
1053 p = lh_SSL_SESSION_retrieve(sc->session_ctx->sessions, &r);
1054 CRYPTO_THREAD_unlock(sc->session_ctx->lock);
1058 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
1060 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
1063 int SSL_set_purpose(SSL *s, int purpose)
1065 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1070 return X509_VERIFY_PARAM_set_purpose(sc->param, purpose);
1073 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
1075 return X509_VERIFY_PARAM_set_trust(s->param, trust);
1078 int SSL_set_trust(SSL *s, int trust)
1080 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1085 return X509_VERIFY_PARAM_set_trust(sc->param, trust);
1088 int SSL_set1_host(SSL *s, const char *hostname)
1090 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1095 /* If a hostname is provided and parses as an IP address,
1096 * treat it as such. */
1097 if (hostname != NULL
1098 && X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname) == 1)
1101 return X509_VERIFY_PARAM_set1_host(sc->param, hostname, 0);
1104 int SSL_add1_host(SSL *s, const char *hostname)
1106 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1111 /* If a hostname is provided and parses as an IP address,
1112 * treat it as such. */
1115 ASN1_OCTET_STRING *ip;
1118 ip = a2i_IPADDRESS(hostname);
1120 /* We didn't want it; only to check if it *is* an IP address */
1121 ASN1_OCTET_STRING_free(ip);
1123 old_ip = X509_VERIFY_PARAM_get1_ip_asc(sc->param);
1126 OPENSSL_free(old_ip);
1127 /* There can be only one IP address */
1131 return X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname);
1135 return X509_VERIFY_PARAM_add1_host(sc->param, hostname, 0);
1138 void SSL_set_hostflags(SSL *s, unsigned int flags)
1140 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1145 X509_VERIFY_PARAM_set_hostflags(sc->param, flags);
1148 const char *SSL_get0_peername(SSL *s)
1150 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1155 return X509_VERIFY_PARAM_get0_peername(sc->param);
1158 int SSL_CTX_dane_enable(SSL_CTX *ctx)
1160 return dane_ctx_enable(&ctx->dane);
1163 unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
1165 unsigned long orig = ctx->dane.flags;
1167 ctx->dane.flags |= flags;
1171 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
1173 unsigned long orig = ctx->dane.flags;
1175 ctx->dane.flags &= ~flags;
1179 int SSL_dane_enable(SSL *s, const char *basedomain)
1182 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1188 if (s->ctx->dane.mdmax == 0) {
1189 ERR_raise(ERR_LIB_SSL, SSL_R_CONTEXT_NOT_DANE_ENABLED);
1192 if (dane->trecs != NULL) {
1193 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_ALREADY_ENABLED);
1198 * Default SNI name. This rejects empty names, while set1_host below
1199 * accepts them and disables hostname checks. To avoid side-effects with
1200 * invalid input, set the SNI name first.
1202 if (sc->ext.hostname == NULL) {
1203 if (!SSL_set_tlsext_host_name(s, basedomain)) {
1204 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1209 /* Primary RFC6125 reference identifier */
1210 if (!X509_VERIFY_PARAM_set1_host(sc->param, basedomain, 0)) {
1211 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1217 dane->dctx = &s->ctx->dane;
1218 dane->trecs = sk_danetls_record_new_null();
1220 if (dane->trecs == NULL) {
1221 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
1227 unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
1230 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1235 orig = sc->dane.flags;
1237 sc->dane.flags |= flags;
1241 unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
1244 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1249 orig = sc->dane.flags;
1251 sc->dane.flags &= ~flags;
1255 int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
1258 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1265 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1269 *mcert = dane->mcert;
1271 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
1276 int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
1277 uint8_t *mtype, const unsigned char **data, size_t *dlen)
1280 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1287 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1291 *usage = dane->mtlsa->usage;
1293 *selector = dane->mtlsa->selector;
1295 *mtype = dane->mtlsa->mtype;
1297 *data = dane->mtlsa->data;
1299 *dlen = dane->mtlsa->dlen;
1304 SSL_DANE *SSL_get0_dane(SSL *s)
1306 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1314 int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
1315 uint8_t mtype, const unsigned char *data, size_t dlen)
1317 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1322 return dane_tlsa_add(&sc->dane, usage, selector, mtype, data, dlen);
1325 int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
1328 return dane_mtype_set(&ctx->dane, md, mtype, ord);
1331 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
1333 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
1336 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
1338 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1343 return X509_VERIFY_PARAM_set1(sc->param, vpm);
1346 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
1351 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
1353 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1361 void SSL_certs_clear(SSL *s)
1363 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1368 ssl_cert_clear_certs(sc->cert);
1371 void SSL_free(SSL *s)
1377 CRYPTO_DOWN_REF(&s->references, &i, s->lock);
1378 REF_PRINT_COUNT("SSL", s);
1381 REF_ASSERT_ISNT(i < 0);
1383 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1385 if (s->method != NULL)
1386 s->method->ssl_free(s);
1388 SSL_CTX_free(s->ctx);
1389 CRYPTO_THREAD_lock_free(s->lock);
1394 void ossl_ssl_connection_free(SSL *ssl)
1398 s = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
1402 X509_VERIFY_PARAM_free(s->param);
1403 dane_final(&s->dane);
1405 /* Ignore return value */
1406 ssl_free_wbio_buffer(s);
1408 RECORD_LAYER_clear(&s->rlayer);
1410 BUF_MEM_free(s->init_buf);
1412 /* add extra stuff */
1413 sk_SSL_CIPHER_free(s->cipher_list);
1414 sk_SSL_CIPHER_free(s->cipher_list_by_id);
1415 sk_SSL_CIPHER_free(s->tls13_ciphersuites);
1416 sk_SSL_CIPHER_free(s->peer_ciphers);
1418 /* Make the next call work :-) */
1419 if (s->session != NULL) {
1420 ssl_clear_bad_session(s);
1421 SSL_SESSION_free(s->session);
1423 SSL_SESSION_free(s->psksession);
1424 OPENSSL_free(s->psksession_id);
1426 ssl_cert_free(s->cert);
1427 OPENSSL_free(s->shared_sigalgs);
1428 /* Free up if allocated */
1430 OPENSSL_free(s->ext.hostname);
1431 SSL_CTX_free(s->session_ctx);
1432 OPENSSL_free(s->ext.ecpointformats);
1433 OPENSSL_free(s->ext.peer_ecpointformats);
1434 OPENSSL_free(s->ext.supportedgroups);
1435 OPENSSL_free(s->ext.peer_supportedgroups);
1436 sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
1437 #ifndef OPENSSL_NO_OCSP
1438 sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
1440 #ifndef OPENSSL_NO_CT
1441 SCT_LIST_free(s->scts);
1442 OPENSSL_free(s->ext.scts);
1444 OPENSSL_free(s->ext.ocsp.resp);
1445 OPENSSL_free(s->ext.alpn);
1446 OPENSSL_free(s->ext.tls13_cookie);
1447 if (s->clienthello != NULL)
1448 OPENSSL_free(s->clienthello->pre_proc_exts);
1449 OPENSSL_free(s->clienthello);
1450 OPENSSL_free(s->pha_context);
1451 EVP_MD_CTX_free(s->pha_dgst);
1453 sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
1454 sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
1456 OPENSSL_free(s->client_cert_type);
1457 OPENSSL_free(s->server_cert_type);
1459 OSSL_STACK_OF_X509_free(s->verified_chain);
1461 if (ssl->method != NULL)
1462 ssl->method->ssl_deinit(ssl);
1464 ASYNC_WAIT_CTX_free(s->waitctx);
1466 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1467 OPENSSL_free(s->ext.npn);
1470 #ifndef OPENSSL_NO_SRTP
1471 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
1475 * We do this late. We want to ensure that any other references we held to
1476 * these BIOs are freed first *before* we call BIO_free_all(), because
1477 * BIO_free_all() will only free each BIO in the chain if the number of
1478 * references to the first BIO have dropped to 0
1480 BIO_free_all(s->wbio);
1482 BIO_free_all(s->rbio);
1484 OPENSSL_free(s->s3.tmp.valid_flags);
1487 void SSL_set0_rbio(SSL *s, BIO *rbio)
1489 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1491 #ifndef OPENSSL_NO_QUIC
1493 ossl_quic_conn_set0_net_rbio(s, rbio);
1501 BIO_free_all(sc->rbio);
1503 sc->rlayer.rrlmethod->set1_bio(sc->rlayer.rrl, sc->rbio);
1506 void SSL_set0_wbio(SSL *s, BIO *wbio)
1508 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1510 #ifndef OPENSSL_NO_QUIC
1512 ossl_quic_conn_set0_net_wbio(s, wbio);
1521 * If the output buffering BIO is still in place, remove it
1523 if (sc->bbio != NULL)
1524 sc->wbio = BIO_pop(sc->wbio);
1526 BIO_free_all(sc->wbio);
1529 /* Re-attach |bbio| to the new |wbio|. */
1530 if (sc->bbio != NULL)
1531 sc->wbio = BIO_push(sc->bbio, sc->wbio);
1533 sc->rlayer.wrlmethod->set1_bio(sc->rlayer.wrl, sc->wbio);
1536 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1539 * For historical reasons, this function has many different cases in
1540 * ownership handling.
1543 /* If nothing has changed, do nothing */
1544 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1548 * If the two arguments are equal then one fewer reference is granted by the
1549 * caller than we want to take
1551 if (rbio != NULL && rbio == wbio)
1555 * If only the wbio is changed only adopt one reference.
1557 if (rbio == SSL_get_rbio(s)) {
1558 SSL_set0_wbio(s, wbio);
1562 * There is an asymmetry here for historical reasons. If only the rbio is
1563 * changed AND the rbio and wbio were originally different, then we only
1564 * adopt one reference.
1566 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1567 SSL_set0_rbio(s, rbio);
1571 /* Otherwise, adopt both references. */
1572 SSL_set0_rbio(s, rbio);
1573 SSL_set0_wbio(s, wbio);
1576 BIO *SSL_get_rbio(const SSL *s)
1578 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1580 #ifndef OPENSSL_NO_QUIC
1582 return ossl_quic_conn_get_net_rbio(s);
1591 BIO *SSL_get_wbio(const SSL *s)
1593 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1595 #ifndef OPENSSL_NO_QUIC
1597 return ossl_quic_conn_get_net_wbio(s);
1603 if (sc->bbio != NULL) {
1605 * If |bbio| is active, the true caller-configured BIO is its
1608 return BIO_next(sc->bbio);
1613 int SSL_get_fd(const SSL *s)
1615 return SSL_get_rfd(s);
1618 int SSL_get_rfd(const SSL *s)
1623 b = SSL_get_rbio(s);
1624 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1626 BIO_get_fd(r, &ret);
1630 int SSL_get_wfd(const SSL *s)
1635 b = SSL_get_wbio(s);
1636 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1638 BIO_get_fd(r, &ret);
1642 #ifndef OPENSSL_NO_SOCK
1643 int SSL_set_fd(SSL *s, int fd)
1648 bio = BIO_new(BIO_s_socket());
1651 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1654 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1655 SSL_set_bio(s, bio, bio);
1656 #ifndef OPENSSL_NO_KTLS
1658 * The new socket is created successfully regardless of ktls_enable.
1659 * ktls_enable doesn't change any functionality of the socket, except
1660 * changing the setsockopt to enable the processing of ktls_start.
1661 * Thus, it is not a problem to call it for non-TLS sockets.
1664 #endif /* OPENSSL_NO_KTLS */
1670 int SSL_set_wfd(SSL *s, int fd)
1672 BIO *rbio = SSL_get_rbio(s);
1674 if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET
1675 || (int)BIO_get_fd(rbio, NULL) != fd) {
1676 BIO *bio = BIO_new(BIO_s_socket());
1679 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1682 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1683 SSL_set0_wbio(s, bio);
1684 #ifndef OPENSSL_NO_KTLS
1686 * The new socket is created successfully regardless of ktls_enable.
1687 * ktls_enable doesn't change any functionality of the socket, except
1688 * changing the setsockopt to enable the processing of ktls_start.
1689 * Thus, it is not a problem to call it for non-TLS sockets.
1692 #endif /* OPENSSL_NO_KTLS */
1695 SSL_set0_wbio(s, rbio);
1700 int SSL_set_rfd(SSL *s, int fd)
1702 BIO *wbio = SSL_get_wbio(s);
1704 if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET
1705 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
1706 BIO *bio = BIO_new(BIO_s_socket());
1709 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1712 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1713 SSL_set0_rbio(s, bio);
1716 SSL_set0_rbio(s, wbio);
1723 /* return length of latest Finished message we sent, copy to 'buf' */
1724 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
1727 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1732 ret = sc->s3.tmp.finish_md_len;
1735 memcpy(buf, sc->s3.tmp.finish_md, count);
1739 /* return length of latest Finished message we expected, copy to 'buf' */
1740 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
1743 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1748 ret = sc->s3.tmp.peer_finish_md_len;
1751 memcpy(buf, sc->s3.tmp.peer_finish_md, count);
1755 int SSL_get_verify_mode(const SSL *s)
1757 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1762 return sc->verify_mode;
1765 int SSL_get_verify_depth(const SSL *s)
1767 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1772 return X509_VERIFY_PARAM_get_depth(sc->param);
1775 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
1776 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1781 return sc->verify_callback;
1784 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
1786 return ctx->verify_mode;
1789 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
1791 return X509_VERIFY_PARAM_get_depth(ctx->param);
1794 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
1795 return ctx->default_verify_callback;
1798 void SSL_set_verify(SSL *s, int mode,
1799 int (*callback) (int ok, X509_STORE_CTX *ctx))
1801 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1806 sc->verify_mode = mode;
1807 if (callback != NULL)
1808 sc->verify_callback = callback;
1811 void SSL_set_verify_depth(SSL *s, int depth)
1813 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1818 X509_VERIFY_PARAM_set_depth(sc->param, depth);
1821 void SSL_set_read_ahead(SSL *s, int yes)
1823 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1824 OSSL_PARAM options[2], *opts = options;
1829 RECORD_LAYER_set_read_ahead(&sc->rlayer, yes);
1831 *opts++ = OSSL_PARAM_construct_int(OSSL_LIBSSL_RECORD_LAYER_PARAM_READ_AHEAD,
1832 &sc->rlayer.read_ahead);
1833 *opts = OSSL_PARAM_construct_end();
1835 /* Ignore return value */
1836 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
1839 int SSL_get_read_ahead(const SSL *s)
1841 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1846 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
1849 int SSL_pending(const SSL *s)
1851 size_t pending = s->method->ssl_pending(s);
1854 * SSL_pending cannot work properly if read-ahead is enabled
1855 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1856 * impossible to fix since SSL_pending cannot report errors that may be
1857 * observed while scanning the new data. (Note that SSL_pending() is
1858 * often used as a boolean value, so we'd better not return -1.)
1860 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1861 * we just return INT_MAX.
1863 return pending < INT_MAX ? (int)pending : INT_MAX;
1866 int SSL_has_pending(const SSL *s)
1869 * Similar to SSL_pending() but returns a 1 to indicate that we have
1870 * processed or unprocessed data available or 0 otherwise (as opposed to the
1871 * number of bytes available). Unlike SSL_pending() this will take into
1872 * account read_ahead data. A 1 return simply indicates that we have data.
1873 * That data may not result in any application data, or we may fail to parse
1874 * the records for some reason.
1876 const SSL_CONNECTION *sc;
1878 #ifndef OPENSSL_NO_QUIC
1880 return ossl_quic_has_pending(s);
1883 sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1885 /* Check buffered app data if any first */
1886 if (SSL_CONNECTION_IS_DTLS(sc)) {
1890 iter = pqueue_iterator(sc->rlayer.d->buffered_app_data.q);
1891 while ((item = pqueue_next(&iter)) != NULL) {
1893 if (rdata->length > 0)
1898 if (RECORD_LAYER_processed_read_pending(&sc->rlayer))
1901 return RECORD_LAYER_read_pending(&sc->rlayer);
1904 X509 *SSL_get1_peer_certificate(const SSL *s)
1906 X509 *r = SSL_get0_peer_certificate(s);
1914 X509 *SSL_get0_peer_certificate(const SSL *s)
1916 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1921 if (sc->session == NULL)
1924 return sc->session->peer;
1927 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
1930 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1935 if (sc->session == NULL)
1938 r = sc->session->peer_chain;
1941 * If we are a client, cert_chain includes the peer's own certificate; if
1942 * we are a server, it does not.
1949 * Now in theory, since the calling process own 't' it should be safe to
1950 * modify. We need to be able to read f without being hassled
1952 int SSL_copy_session_id(SSL *t, const SSL *f)
1955 /* TODO(QUIC): Do we want to support this for QUIC connections? */
1956 SSL_CONNECTION *tsc = SSL_CONNECTION_FROM_SSL_ONLY(t);
1957 const SSL_CONNECTION *fsc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(f);
1959 if (tsc == NULL || fsc == NULL)
1962 /* Do we need to do SSL locking? */
1963 if (!SSL_set_session(t, SSL_get_session(f))) {
1968 * what if we are setup for one protocol version but want to talk another
1970 if (t->method != f->method) {
1971 t->method->ssl_deinit(t);
1972 t->method = f->method;
1973 if (t->method->ssl_init(t) == 0)
1977 CRYPTO_UP_REF(&fsc->cert->references, &i, fsc->cert->lock);
1978 ssl_cert_free(tsc->cert);
1979 tsc->cert = fsc->cert;
1980 if (!SSL_set_session_id_context(t, fsc->sid_ctx, (int)fsc->sid_ctx_length)) {
1987 /* Fix this so it checks all the valid key/cert options */
1988 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
1990 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
1991 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
1994 if (ctx->cert->key->privatekey == NULL) {
1995 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1998 return X509_check_private_key
1999 (ctx->cert->key->x509, ctx->cert->key->privatekey);
2002 /* Fix this function so that it takes an optional type parameter */
2003 int SSL_check_private_key(const SSL *ssl)
2005 const SSL_CONNECTION *sc;
2007 if ((sc = SSL_CONNECTION_FROM_CONST_SSL(ssl)) == NULL) {
2008 ERR_raise(ERR_LIB_SSL, ERR_R_PASSED_NULL_PARAMETER);
2011 if (sc->cert->key->x509 == NULL) {
2012 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
2015 if (sc->cert->key->privatekey == NULL) {
2016 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
2019 return X509_check_private_key(sc->cert->key->x509,
2020 sc->cert->key->privatekey);
2023 int SSL_waiting_for_async(SSL *s)
2025 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2036 int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
2038 ASYNC_WAIT_CTX *ctx;
2039 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2044 if ((ctx = sc->waitctx) == NULL)
2046 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
2049 int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
2050 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
2052 ASYNC_WAIT_CTX *ctx;
2053 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2058 if ((ctx = sc->waitctx) == NULL)
2060 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
2064 int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback)
2066 ctx->async_cb = callback;
2070 int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg)
2072 ctx->async_cb_arg = arg;
2076 int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback)
2078 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2083 sc->async_cb = callback;
2087 int SSL_set_async_callback_arg(SSL *s, void *arg)
2089 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2094 sc->async_cb_arg = arg;
2098 int SSL_get_async_status(SSL *s, int *status)
2100 ASYNC_WAIT_CTX *ctx;
2101 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2106 if ((ctx = sc->waitctx) == NULL)
2108 *status = ASYNC_WAIT_CTX_get_status(ctx);
2112 int SSL_accept(SSL *s)
2114 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2116 #ifndef OPENSSL_NO_QUIC
2118 return s->method->ssl_accept(s);
2124 if (sc->handshake_func == NULL) {
2125 /* Not properly initialized yet */
2126 SSL_set_accept_state(s);
2129 return SSL_do_handshake(s);
2132 int SSL_connect(SSL *s)
2134 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2136 #ifndef OPENSSL_NO_QUIC
2138 return s->method->ssl_connect(s);
2144 if (sc->handshake_func == NULL) {
2145 /* Not properly initialized yet */
2146 SSL_set_connect_state(s);
2149 return SSL_do_handshake(s);
2152 long SSL_get_default_timeout(const SSL *s)
2154 return (long int)ossl_time2seconds(s->method->get_timeout());
2157 static int ssl_async_wait_ctx_cb(void *arg)
2159 SSL *s = (SSL *)arg;
2160 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2165 return sc->async_cb(s, sc->async_cb_arg);
2168 static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
2169 int (*func) (void *))
2172 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2177 if (sc->waitctx == NULL) {
2178 sc->waitctx = ASYNC_WAIT_CTX_new();
2179 if (sc->waitctx == NULL)
2181 if (sc->async_cb != NULL
2182 && !ASYNC_WAIT_CTX_set_callback
2183 (sc->waitctx, ssl_async_wait_ctx_cb, s))
2187 sc->rwstate = SSL_NOTHING;
2188 switch (ASYNC_start_job(&sc->job, sc->waitctx, &ret, func, args,
2189 sizeof(struct ssl_async_args))) {
2191 sc->rwstate = SSL_NOTHING;
2192 ERR_raise(ERR_LIB_SSL, SSL_R_FAILED_TO_INIT_ASYNC);
2195 sc->rwstate = SSL_ASYNC_PAUSED;
2198 sc->rwstate = SSL_ASYNC_NO_JOBS;
2204 sc->rwstate = SSL_NOTHING;
2205 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
2206 /* Shouldn't happen */
2211 static int ssl_io_intern(void *vargs)
2213 struct ssl_async_args *args;
2219 args = (struct ssl_async_args *)vargs;
2223 if ((sc = SSL_CONNECTION_FROM_SSL(s)) == NULL)
2226 switch (args->type) {
2228 return args->f.func_read(s, buf, num, &sc->asyncrw);
2230 return args->f.func_write(s, buf, num, &sc->asyncrw);
2232 return args->f.func_other(s);
2237 int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2239 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2241 #ifndef OPENSSL_NO_QUIC
2243 return s->method->ssl_read(s, buf, num, readbytes);
2249 if (sc->handshake_func == NULL) {
2250 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2254 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2255 sc->rwstate = SSL_NOTHING;
2259 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2260 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
2261 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2265 * If we are a client and haven't received the ServerHello etc then we
2268 ossl_statem_check_finish_init(sc, 0);
2270 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2271 struct ssl_async_args args;
2277 args.type = READFUNC;
2278 args.f.func_read = s->method->ssl_read;
2280 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2281 *readbytes = sc->asyncrw;
2284 return s->method->ssl_read(s, buf, num, readbytes);
2288 int SSL_read(SSL *s, void *buf, int num)
2294 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2298 ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
2301 * The cast is safe here because ret should be <= INT_MAX because num is
2305 ret = (int)readbytes;
2310 int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2312 int ret = ssl_read_internal(s, buf, num, readbytes);
2319 int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
2322 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2324 /* TODO(QUIC): This will need special handling for QUIC */
2329 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2330 return SSL_READ_EARLY_DATA_ERROR;
2333 switch (sc->early_data_state) {
2334 case SSL_EARLY_DATA_NONE:
2335 if (!SSL_in_before(s)) {
2336 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2337 return SSL_READ_EARLY_DATA_ERROR;
2341 case SSL_EARLY_DATA_ACCEPT_RETRY:
2342 sc->early_data_state = SSL_EARLY_DATA_ACCEPTING;
2343 ret = SSL_accept(s);
2346 sc->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
2347 return SSL_READ_EARLY_DATA_ERROR;
2351 case SSL_EARLY_DATA_READ_RETRY:
2352 if (sc->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
2353 sc->early_data_state = SSL_EARLY_DATA_READING;
2354 ret = SSL_read_ex(s, buf, num, readbytes);
2356 * State machine will update early_data_state to
2357 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
2360 if (ret > 0 || (ret <= 0 && sc->early_data_state
2361 != SSL_EARLY_DATA_FINISHED_READING)) {
2362 sc->early_data_state = SSL_EARLY_DATA_READ_RETRY;
2363 return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
2364 : SSL_READ_EARLY_DATA_ERROR;
2367 sc->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
2370 return SSL_READ_EARLY_DATA_FINISH;
2373 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2374 return SSL_READ_EARLY_DATA_ERROR;
2378 int SSL_get_early_data_status(const SSL *s)
2380 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
2382 /* TODO(QUIC): This will need special handling for QUIC */
2386 return sc->ext.early_data;
2389 static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2391 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2393 #ifndef OPENSSL_NO_QUIC
2395 return s->method->ssl_peek(s, buf, num, readbytes);
2401 if (sc->handshake_func == NULL) {
2402 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2406 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2409 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2410 struct ssl_async_args args;
2416 args.type = READFUNC;
2417 args.f.func_read = s->method->ssl_peek;
2419 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2420 *readbytes = sc->asyncrw;
2423 return s->method->ssl_peek(s, buf, num, readbytes);
2427 int SSL_peek(SSL *s, void *buf, int num)
2433 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2437 ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
2440 * The cast is safe here because ret should be <= INT_MAX because num is
2444 ret = (int)readbytes;
2450 int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2452 int ret = ssl_peek_internal(s, buf, num, readbytes);
2459 int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written)
2461 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2463 #ifndef OPENSSL_NO_QUIC
2465 return s->method->ssl_write(s, buf, num, written);
2471 if (sc->handshake_func == NULL) {
2472 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2476 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2477 sc->rwstate = SSL_NOTHING;
2478 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2482 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2483 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
2484 || sc->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
2485 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2488 /* If we are a client and haven't sent the Finished we better do that */
2489 ossl_statem_check_finish_init(sc, 1);
2491 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2493 struct ssl_async_args args;
2496 args.buf = (void *)buf;
2498 args.type = WRITEFUNC;
2499 args.f.func_write = s->method->ssl_write;
2501 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2502 *written = sc->asyncrw;
2505 return s->method->ssl_write(s, buf, num, written);
2509 ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size, int flags)
2512 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2517 if (sc->handshake_func == NULL) {
2518 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2522 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2523 sc->rwstate = SSL_NOTHING;
2524 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2528 if (!BIO_get_ktls_send(sc->wbio)) {
2529 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2533 /* If we have an alert to send, lets send it */
2534 if (sc->s3.alert_dispatch > 0) {
2535 ret = (ossl_ssize_t)s->method->ssl_dispatch_alert(s);
2537 /* SSLfatal() already called if appropriate */
2540 /* if it went, fall through and send more stuff */
2543 sc->rwstate = SSL_WRITING;
2544 if (BIO_flush(sc->wbio) <= 0) {
2545 if (!BIO_should_retry(sc->wbio)) {
2546 sc->rwstate = SSL_NOTHING;
2549 set_sys_error(EAGAIN);
2555 #ifdef OPENSSL_NO_KTLS
2556 ERR_raise_data(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR,
2557 "can't call ktls_sendfile(), ktls disabled");
2560 ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags);
2562 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2563 if ((get_last_sys_error() == EAGAIN) ||
2564 (get_last_sys_error() == EINTR) ||
2565 (get_last_sys_error() == EBUSY))
2566 BIO_set_retry_write(sc->wbio);
2569 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2572 sc->rwstate = SSL_NOTHING;
2577 int SSL_write(SSL *s, const void *buf, int num)
2583 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2587 ret = ssl_write_internal(s, buf, (size_t)num, &written);
2590 * The cast is safe here because ret should be <= INT_MAX because num is
2599 int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
2601 int ret = ssl_write_internal(s, buf, num, written);
2608 int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
2610 int ret, early_data_state;
2612 uint32_t partialwrite;
2613 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2615 /* TODO(QUIC): This will need special handling for QUIC */
2619 switch (sc->early_data_state) {
2620 case SSL_EARLY_DATA_NONE:
2622 || !SSL_in_before(s)
2623 || ((sc->session == NULL || sc->session->ext.max_early_data == 0)
2624 && (sc->psk_use_session_cb == NULL))) {
2625 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2630 case SSL_EARLY_DATA_CONNECT_RETRY:
2631 sc->early_data_state = SSL_EARLY_DATA_CONNECTING;
2632 ret = SSL_connect(s);
2635 sc->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
2640 case SSL_EARLY_DATA_WRITE_RETRY:
2641 sc->early_data_state = SSL_EARLY_DATA_WRITING;
2643 * We disable partial write for early data because we don't keep track
2644 * of how many bytes we've written between the SSL_write_ex() call and
2645 * the flush if the flush needs to be retried)
2647 partialwrite = sc->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
2648 sc->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
2649 ret = SSL_write_ex(s, buf, num, &writtmp);
2650 sc->mode |= partialwrite;
2652 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2655 sc->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
2658 case SSL_EARLY_DATA_WRITE_FLUSH:
2659 /* The buffering BIO is still in place so we need to flush it */
2660 if (statem_flush(sc) != 1)
2663 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2666 case SSL_EARLY_DATA_FINISHED_READING:
2667 case SSL_EARLY_DATA_READ_RETRY:
2668 early_data_state = sc->early_data_state;
2669 /* We are a server writing to an unauthenticated client */
2670 sc->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
2671 ret = SSL_write_ex(s, buf, num, written);
2672 /* The buffering BIO is still in place */
2674 (void)BIO_flush(sc->wbio);
2675 sc->early_data_state = early_data_state;
2679 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2684 int SSL_shutdown(SSL *s)
2687 * Note that this function behaves differently from what one might
2688 * expect. Return values are 0 for no success (yet), 1 for success; but
2689 * calling it once is usually not enough, even if blocking I/O is used
2690 * (see ssl3_shutdown).
2692 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2694 #ifndef OPENSSL_NO_QUIC
2696 return ossl_quic_conn_shutdown(s, 0, NULL, 0);
2702 if (sc->handshake_func == NULL) {
2703 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2707 if (!SSL_in_init(s)) {
2708 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2709 struct ssl_async_args args;
2711 memset(&args, 0, sizeof(args));
2713 args.type = OTHERFUNC;
2714 args.f.func_other = s->method->ssl_shutdown;
2716 return ssl_start_async_job(s, &args, ssl_io_intern);
2718 return s->method->ssl_shutdown(s);
2721 ERR_raise(ERR_LIB_SSL, SSL_R_SHUTDOWN_WHILE_IN_INIT);
2726 int SSL_key_update(SSL *s, int updatetype)
2728 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2733 if (!SSL_CONNECTION_IS_TLS13(sc)) {
2734 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2738 if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
2739 && updatetype != SSL_KEY_UPDATE_REQUESTED) {
2740 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_KEY_UPDATE_TYPE);
2744 if (!SSL_is_init_finished(s)) {
2745 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
2749 if (RECORD_LAYER_write_pending(&sc->rlayer)) {
2750 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_WRITE_RETRY);
2754 ossl_statem_set_in_init(sc, 1);
2755 sc->key_update = updatetype;
2759 int SSL_get_key_update_type(const SSL *s)
2761 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
2766 return sc->key_update;
2770 * Can we accept a renegotiation request? If yes, set the flag and
2771 * return 1 if yes. If not, raise error and return 0.
2773 static int can_renegotiate(const SSL_CONNECTION *sc)
2775 if (SSL_CONNECTION_IS_TLS13(sc)) {
2776 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2780 if ((sc->options & SSL_OP_NO_RENEGOTIATION) != 0) {
2781 ERR_raise(ERR_LIB_SSL, SSL_R_NO_RENEGOTIATION);
2788 int SSL_renegotiate(SSL *s)
2790 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2795 if (!can_renegotiate(sc))
2798 sc->renegotiate = 1;
2799 sc->new_session = 1;
2800 return s->method->ssl_renegotiate(s);
2803 int SSL_renegotiate_abbreviated(SSL *s)
2805 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2810 if (!can_renegotiate(sc))
2813 sc->renegotiate = 1;
2814 sc->new_session = 0;
2815 return s->method->ssl_renegotiate(s);
2818 int SSL_renegotiate_pending(const SSL *s)
2820 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2826 * becomes true when negotiation is requested; false again once a
2827 * handshake has finished
2829 return (sc->renegotiate != 0);
2832 int SSL_new_session_ticket(SSL *s)
2834 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2839 /* If we are in init because we're sending tickets, okay to send more. */
2840 if ((SSL_in_init(s) && sc->ext.extra_tickets_expected == 0)
2841 || SSL_IS_FIRST_HANDSHAKE(sc) || !sc->server
2842 || !SSL_CONNECTION_IS_TLS13(sc))
2844 sc->ext.extra_tickets_expected++;
2845 if (!RECORD_LAYER_write_pending(&sc->rlayer) && !SSL_in_init(s))
2846 ossl_statem_set_in_init(sc, 1);
2850 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
2853 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2855 /* TODO(QUIC): Special handling for some ctrls will be needed */
2860 case SSL_CTRL_GET_READ_AHEAD:
2861 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
2862 case SSL_CTRL_SET_READ_AHEAD:
2863 l = RECORD_LAYER_get_read_ahead(&sc->rlayer);
2864 RECORD_LAYER_set_read_ahead(&sc->rlayer, larg);
2869 OSSL_PARAM options[2], *opts = options;
2873 *opts++ = OSSL_PARAM_construct_uint32(OSSL_LIBSSL_RECORD_LAYER_PARAM_MODE,
2875 *opts = OSSL_PARAM_construct_end();
2877 /* Ignore return value */
2878 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
2882 case SSL_CTRL_CLEAR_MODE:
2883 return (sc->mode &= ~larg);
2884 case SSL_CTRL_GET_MAX_CERT_LIST:
2885 return (long)sc->max_cert_list;
2886 case SSL_CTRL_SET_MAX_CERT_LIST:
2889 l = (long)sc->max_cert_list;
2890 sc->max_cert_list = (size_t)larg;
2892 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2893 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2895 #ifndef OPENSSL_NO_KTLS
2896 if (sc->wbio != NULL && BIO_get_ktls_send(sc->wbio))
2898 #endif /* OPENSSL_NO_KTLS */
2899 sc->max_send_fragment = larg;
2900 if (sc->max_send_fragment < sc->split_send_fragment)
2901 sc->split_send_fragment = sc->max_send_fragment;
2902 sc->rlayer.wrlmethod->set_max_frag_len(sc->rlayer.wrl, larg);
2904 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2905 if ((size_t)larg > sc->max_send_fragment || larg == 0)
2907 sc->split_send_fragment = larg;
2909 case SSL_CTRL_SET_MAX_PIPELINES:
2910 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2912 sc->max_pipelines = larg;
2913 if (sc->rlayer.rrlmethod->set_max_pipelines != NULL)
2914 sc->rlayer.rrlmethod->set_max_pipelines(sc->rlayer.rrl, (size_t)larg);
2916 case SSL_CTRL_GET_RI_SUPPORT:
2917 return sc->s3.send_connection_binding;
2918 case SSL_CTRL_SET_RETRY_VERIFY:
2919 sc->rwstate = SSL_RETRY_VERIFY;
2921 case SSL_CTRL_CERT_FLAGS:
2922 return (sc->cert->cert_flags |= larg);
2923 case SSL_CTRL_CLEAR_CERT_FLAGS:
2924 return (sc->cert->cert_flags &= ~larg);
2926 case SSL_CTRL_GET_RAW_CIPHERLIST:
2928 if (sc->s3.tmp.ciphers_raw == NULL)
2930 *(unsigned char **)parg = sc->s3.tmp.ciphers_raw;
2931 return (int)sc->s3.tmp.ciphers_rawlen;
2933 return TLS_CIPHER_LEN;
2935 case SSL_CTRL_GET_EXTMS_SUPPORT:
2936 if (!sc->session || SSL_in_init(s) || ossl_statem_get_in_handshake(sc))
2938 if (sc->session->flags & SSL_SESS_FLAG_EXTMS)
2942 case SSL_CTRL_SET_MIN_PROTO_VERSION:
2943 return ssl_check_allowed_versions(larg, sc->max_proto_version)
2944 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
2945 &sc->min_proto_version);
2946 case SSL_CTRL_GET_MIN_PROTO_VERSION:
2947 return sc->min_proto_version;
2948 case SSL_CTRL_SET_MAX_PROTO_VERSION:
2949 return ssl_check_allowed_versions(sc->min_proto_version, larg)
2950 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
2951 &sc->max_proto_version);
2952 case SSL_CTRL_GET_MAX_PROTO_VERSION:
2953 return sc->max_proto_version;
2955 return s->method->ssl_ctrl(s, cmd, larg, parg);
2959 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
2961 return s->method->ssl_callback_ctrl(s, cmd, fp);
2964 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
2966 return ctx->sessions;
2969 static int ssl_tsan_load(SSL_CTX *ctx, TSAN_QUALIFIER int *stat)
2973 if (ssl_tsan_lock(ctx)) {
2974 res = tsan_load(stat);
2975 ssl_tsan_unlock(ctx);
2980 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
2983 /* For some cases with ctx == NULL perform syntax checks */
2986 case SSL_CTRL_SET_GROUPS_LIST:
2987 return tls1_set_groups_list(ctx, NULL, NULL, parg);
2988 case SSL_CTRL_SET_SIGALGS_LIST:
2989 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
2990 return tls1_set_sigalgs_list(NULL, parg, 0);
2997 case SSL_CTRL_GET_READ_AHEAD:
2998 return ctx->read_ahead;
2999 case SSL_CTRL_SET_READ_AHEAD:
3000 l = ctx->read_ahead;
3001 ctx->read_ahead = larg;
3004 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
3005 ctx->msg_callback_arg = parg;
3008 case SSL_CTRL_GET_MAX_CERT_LIST:
3009 return (long)ctx->max_cert_list;
3010 case SSL_CTRL_SET_MAX_CERT_LIST:
3013 l = (long)ctx->max_cert_list;
3014 ctx->max_cert_list = (size_t)larg;
3017 case SSL_CTRL_SET_SESS_CACHE_SIZE:
3020 l = (long)ctx->session_cache_size;
3021 ctx->session_cache_size = (size_t)larg;
3023 case SSL_CTRL_GET_SESS_CACHE_SIZE:
3024 return (long)ctx->session_cache_size;
3025 case SSL_CTRL_SET_SESS_CACHE_MODE:
3026 l = ctx->session_cache_mode;
3027 ctx->session_cache_mode = larg;
3029 case SSL_CTRL_GET_SESS_CACHE_MODE:
3030 return ctx->session_cache_mode;
3032 case SSL_CTRL_SESS_NUMBER:
3033 return lh_SSL_SESSION_num_items(ctx->sessions);
3034 case SSL_CTRL_SESS_CONNECT:
3035 return ssl_tsan_load(ctx, &ctx->stats.sess_connect);
3036 case SSL_CTRL_SESS_CONNECT_GOOD:
3037 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_good);
3038 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
3039 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_renegotiate);
3040 case SSL_CTRL_SESS_ACCEPT:
3041 return ssl_tsan_load(ctx, &ctx->stats.sess_accept);
3042 case SSL_CTRL_SESS_ACCEPT_GOOD:
3043 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_good);
3044 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
3045 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_renegotiate);
3046 case SSL_CTRL_SESS_HIT:
3047 return ssl_tsan_load(ctx, &ctx->stats.sess_hit);
3048 case SSL_CTRL_SESS_CB_HIT:
3049 return ssl_tsan_load(ctx, &ctx->stats.sess_cb_hit);
3050 case SSL_CTRL_SESS_MISSES:
3051 return ssl_tsan_load(ctx, &ctx->stats.sess_miss);
3052 case SSL_CTRL_SESS_TIMEOUTS:
3053 return ssl_tsan_load(ctx, &ctx->stats.sess_timeout);
3054 case SSL_CTRL_SESS_CACHE_FULL:
3055 return ssl_tsan_load(ctx, &ctx->stats.sess_cache_full);
3057 return (ctx->mode |= larg);
3058 case SSL_CTRL_CLEAR_MODE:
3059 return (ctx->mode &= ~larg);
3060 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
3061 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
3063 ctx->max_send_fragment = larg;
3064 if (ctx->max_send_fragment < ctx->split_send_fragment)
3065 ctx->split_send_fragment = ctx->max_send_fragment;
3067 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
3068 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
3070 ctx->split_send_fragment = larg;
3072 case SSL_CTRL_SET_MAX_PIPELINES:
3073 if (larg < 1 || larg > SSL_MAX_PIPELINES)
3075 ctx->max_pipelines = larg;
3077 case SSL_CTRL_CERT_FLAGS:
3078 return (ctx->cert->cert_flags |= larg);
3079 case SSL_CTRL_CLEAR_CERT_FLAGS:
3080 return (ctx->cert->cert_flags &= ~larg);
3081 case SSL_CTRL_SET_MIN_PROTO_VERSION:
3082 return ssl_check_allowed_versions(larg, ctx->max_proto_version)
3083 && ssl_set_version_bound(ctx->method->version, (int)larg,
3084 &ctx->min_proto_version);
3085 case SSL_CTRL_GET_MIN_PROTO_VERSION:
3086 return ctx->min_proto_version;
3087 case SSL_CTRL_SET_MAX_PROTO_VERSION:
3088 return ssl_check_allowed_versions(ctx->min_proto_version, larg)
3089 && ssl_set_version_bound(ctx->method->version, (int)larg,
3090 &ctx->max_proto_version);
3091 case SSL_CTRL_GET_MAX_PROTO_VERSION:
3092 return ctx->max_proto_version;
3094 return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
3098 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
3101 case SSL_CTRL_SET_MSG_CALLBACK:
3102 ctx->msg_callback = (void (*)
3103 (int write_p, int version, int content_type,
3104 const void *buf, size_t len, SSL *ssl,
3109 return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
3113 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
3122 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
3123 const SSL_CIPHER *const *bp)
3125 if ((*ap)->id > (*bp)->id)
3127 if ((*ap)->id < (*bp)->id)
3133 * return a STACK of the ciphers available for the SSL and in order of
3136 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
3138 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3141 if (sc->cipher_list != NULL) {
3142 return sc->cipher_list;
3143 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
3144 return s->ctx->cipher_list;
3150 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
3152 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3154 if (sc == NULL || !sc->server)
3156 return sc->peer_ciphers;
3159 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
3161 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
3163 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3168 ciphers = SSL_get_ciphers(s);
3171 if (!ssl_set_client_disabled(sc))
3173 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
3174 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
3175 if (!ssl_cipher_disabled(sc, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
3177 sk = sk_SSL_CIPHER_new_null();
3180 if (!sk_SSL_CIPHER_push(sk, c)) {
3181 sk_SSL_CIPHER_free(sk);
3189 /** return a STACK of the ciphers available for the SSL and in order of
3191 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL_CONNECTION *s)
3194 if (s->cipher_list_by_id != NULL)
3195 return s->cipher_list_by_id;
3196 else if (s->ssl.ctx != NULL
3197 && s->ssl.ctx->cipher_list_by_id != NULL)
3198 return s->ssl.ctx->cipher_list_by_id;
3203 /** The old interface to get the same thing as SSL_get_ciphers() */
3204 const char *SSL_get_cipher_list(const SSL *s, int n)
3206 const SSL_CIPHER *c;
3207 STACK_OF(SSL_CIPHER) *sk;
3211 sk = SSL_get_ciphers(s);
3212 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
3214 c = sk_SSL_CIPHER_value(sk, n);
3220 /** return a STACK of the ciphers available for the SSL_CTX and in order of
3222 STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
3225 return ctx->cipher_list;
3230 * Distinguish between ciphers controlled by set_ciphersuite() and
3231 * set_cipher_list() when counting.
3233 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
3236 const SSL_CIPHER *c;
3240 for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
3241 c = sk_SSL_CIPHER_value(sk, i);
3242 if (c->min_tls >= TLS1_3_VERSION)
3249 /** specify the ciphers to be used by default by the SSL_CTX */
3250 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
3252 STACK_OF(SSL_CIPHER) *sk;
3254 sk = ssl_create_cipher_list(ctx, ctx->tls13_ciphersuites,
3255 &ctx->cipher_list, &ctx->cipher_list_by_id, str,
3258 * ssl_create_cipher_list may return an empty stack if it was unable to
3259 * find a cipher matching the given rule string (for example if the rule
3260 * string specifies a cipher which has been disabled). This is not an
3261 * error as far as ssl_create_cipher_list is concerned, and hence
3262 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
3266 else if (cipher_list_tls12_num(sk) == 0) {
3267 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3273 /** specify the ciphers to be used by the SSL */
3274 int SSL_set_cipher_list(SSL *s, const char *str)
3276 STACK_OF(SSL_CIPHER) *sk;
3277 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3282 sk = ssl_create_cipher_list(s->ctx, sc->tls13_ciphersuites,
3283 &sc->cipher_list, &sc->cipher_list_by_id, str,
3285 /* see comment in SSL_CTX_set_cipher_list */
3288 else if (cipher_list_tls12_num(sk) == 0) {
3289 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3295 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
3298 STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
3299 const SSL_CIPHER *c;
3301 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3307 || sc->peer_ciphers == NULL
3312 clntsk = sc->peer_ciphers;
3313 srvrsk = SSL_get_ciphers(s);
3314 if (clntsk == NULL || srvrsk == NULL)
3317 if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
3320 for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
3323 c = sk_SSL_CIPHER_value(clntsk, i);
3324 if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
3327 n = strlen(c->name);
3344 * Return the requested servername (SNI) value. Note that the behaviour varies
3346 * - whether this is called by the client or the server,
3347 * - if we are before or during/after the handshake,
3348 * - if a resumption or normal handshake is being attempted/has occurred
3349 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
3351 * Note that only the host_name type is defined (RFC 3546).
3353 const char *SSL_get_servername(const SSL *s, const int type)
3355 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3362 * If we don't know if we are the client or the server yet then we assume
3365 server = sc->handshake_func == NULL ? 0 : sc->server;
3367 if (type != TLSEXT_NAMETYPE_host_name)
3373 * In TLSv1.3 on the server SNI is not associated with the session
3374 * but in TLSv1.2 or below it is.
3376 * Before the handshake:
3379 * During/after the handshake (TLSv1.2 or below resumption occurred):
3380 * - If a servername was accepted by the server in the original
3381 * handshake then it will return that servername, or NULL otherwise.
3383 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3384 * - The function will return the servername requested by the client in
3385 * this handshake or NULL if none was requested.
3387 if (sc->hit && !SSL_CONNECTION_IS_TLS13(sc))
3388 return sc->session->ext.hostname;
3393 * Before the handshake:
3394 * - If a servername has been set via a call to
3395 * SSL_set_tlsext_host_name() then it will return that servername
3396 * - If one has not been set, but a TLSv1.2 resumption is being
3397 * attempted and the session from the original handshake had a
3398 * servername accepted by the server then it will return that
3400 * - Otherwise it returns NULL
3402 * During/after the handshake (TLSv1.2 or below resumption occurred):
3403 * - If the session from the original handshake had a servername accepted
3404 * by the server then it will return that servername.
3405 * - Otherwise it returns the servername set via
3406 * SSL_set_tlsext_host_name() (or NULL if it was not called).
3408 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3409 * - It will return the servername set via SSL_set_tlsext_host_name()
3410 * (or NULL if it was not called).
3412 if (SSL_in_before(s)) {
3413 if (sc->ext.hostname == NULL
3414 && sc->session != NULL
3415 && sc->session->ssl_version != TLS1_3_VERSION)
3416 return sc->session->ext.hostname;
3418 if (!SSL_CONNECTION_IS_TLS13(sc) && sc->hit
3419 && sc->session->ext.hostname != NULL)
3420 return sc->session->ext.hostname;
3424 return sc->ext.hostname;
3427 int SSL_get_servername_type(const SSL *s)
3429 if (SSL_get_servername(s, TLSEXT_NAMETYPE_host_name) != NULL)
3430 return TLSEXT_NAMETYPE_host_name;
3435 * SSL_select_next_proto implements the standard protocol selection. It is
3436 * expected that this function is called from the callback set by
3437 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
3438 * vector of 8-bit, length prefixed byte strings. The length byte itself is
3439 * not included in the length. A byte string of length 0 is invalid. No byte
3440 * string may be truncated. The current, but experimental algorithm for
3441 * selecting the protocol is: 1) If the server doesn't support NPN then this
3442 * is indicated to the callback. In this case, the client application has to
3443 * abort the connection or have a default application level protocol. 2) If
3444 * the server supports NPN, but advertises an empty list then the client
3445 * selects the first protocol in its list, but indicates via the API that this
3446 * fallback case was enacted. 3) Otherwise, the client finds the first
3447 * protocol in the server's list that it supports and selects this protocol.
3448 * This is because it's assumed that the server has better information about
3449 * which protocol a client should use. 4) If the client doesn't support any
3450 * of the server's advertised protocols, then this is treated the same as
3451 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
3452 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
3454 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
3455 const unsigned char *server,
3456 unsigned int server_len,
3457 const unsigned char *client, unsigned int client_len)
3460 const unsigned char *result;
3461 int status = OPENSSL_NPN_UNSUPPORTED;
3464 * For each protocol in server preference order, see if we support it.
3466 for (i = 0; i < server_len;) {
3467 for (j = 0; j < client_len;) {
3468 if (server[i] == client[j] &&
3469 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
3470 /* We found a match */
3471 result = &server[i];
3472 status = OPENSSL_NPN_NEGOTIATED;
3482 /* There's no overlap between our protocols and the server's list. */
3484 status = OPENSSL_NPN_NO_OVERLAP;
3487 *out = (unsigned char *)result + 1;
3488 *outlen = result[0];
3492 #ifndef OPENSSL_NO_NEXTPROTONEG
3494 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
3495 * client's requested protocol for this connection and returns 0. If the
3496 * client didn't request any protocol, then *data is set to NULL. Note that
3497 * the client can request any protocol it chooses. The value returned from
3498 * this function need not be a member of the list of supported protocols
3499 * provided by the callback.
3501 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
3504 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3507 /* We have no other way to indicate error */
3513 *data = sc->ext.npn;
3514 if (*data == NULL) {
3517 *len = (unsigned int)sc->ext.npn_len;
3522 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
3523 * a TLS server needs a list of supported protocols for Next Protocol
3524 * Negotiation. The returned list must be in wire format. The list is
3525 * returned by setting |out| to point to it and |outlen| to its length. This
3526 * memory will not be modified, but one should assume that the SSL* keeps a
3527 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
3528 * wishes to advertise. Otherwise, no such extension will be included in the
3531 void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
3532 SSL_CTX_npn_advertised_cb_func cb,
3535 ctx->ext.npn_advertised_cb = cb;
3536 ctx->ext.npn_advertised_cb_arg = arg;
3540 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
3541 * client needs to select a protocol from the server's provided list. |out|
3542 * must be set to point to the selected protocol (which may be within |in|).
3543 * The length of the protocol name must be written into |outlen|. The
3544 * server's advertised protocols are provided in |in| and |inlen|. The
3545 * callback can assume that |in| is syntactically valid. The client must
3546 * select a protocol. It is fatal to the connection if this callback returns
3547 * a value other than SSL_TLSEXT_ERR_OK.
3549 void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
3550 SSL_CTX_npn_select_cb_func cb,
3553 ctx->ext.npn_select_cb = cb;
3554 ctx->ext.npn_select_cb_arg = arg;
3558 static int alpn_value_ok(const unsigned char *protos, unsigned int protos_len)
3562 if (protos_len < 2 || protos == NULL)
3565 for (idx = 0; idx < protos_len; idx += protos[idx] + 1) {
3566 if (protos[idx] == 0)
3569 return idx == protos_len;
3572 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
3573 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3574 * length-prefixed strings). Returns 0 on success.
3576 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
3577 unsigned int protos_len)
3579 unsigned char *alpn;
3581 if (protos_len == 0 || protos == NULL) {
3582 OPENSSL_free(ctx->ext.alpn);
3583 ctx->ext.alpn = NULL;
3584 ctx->ext.alpn_len = 0;
3587 /* Not valid per RFC */
3588 if (!alpn_value_ok(protos, protos_len))
3591 alpn = OPENSSL_memdup(protos, protos_len);
3594 OPENSSL_free(ctx->ext.alpn);
3595 ctx->ext.alpn = alpn;
3596 ctx->ext.alpn_len = protos_len;
3602 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
3603 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3604 * length-prefixed strings). Returns 0 on success.
3606 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
3607 unsigned int protos_len)
3609 unsigned char *alpn;
3610 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
3615 if (protos_len == 0 || protos == NULL) {
3616 OPENSSL_free(sc->ext.alpn);
3617 sc->ext.alpn = NULL;
3618 sc->ext.alpn_len = 0;
3621 /* Not valid per RFC */
3622 if (!alpn_value_ok(protos, protos_len))
3625 alpn = OPENSSL_memdup(protos, protos_len);
3628 OPENSSL_free(sc->ext.alpn);
3629 sc->ext.alpn = alpn;
3630 sc->ext.alpn_len = protos_len;
3636 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3637 * called during ClientHello processing in order to select an ALPN protocol
3638 * from the client's list of offered protocols.
3640 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
3641 SSL_CTX_alpn_select_cb_func cb,
3644 ctx->ext.alpn_select_cb = cb;
3645 ctx->ext.alpn_select_cb_arg = arg;
3649 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3650 * On return it sets |*data| to point to |*len| bytes of protocol name
3651 * (not including the leading length-prefix byte). If the server didn't
3652 * respond with a negotiated protocol then |*len| will be zero.
3654 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
3657 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
3660 /* We have no other way to indicate error */
3666 *data = sc->s3.alpn_selected;
3670 *len = (unsigned int)sc->s3.alpn_selected_len;
3673 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
3674 const char *label, size_t llen,
3675 const unsigned char *context, size_t contextlen,
3678 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3683 if (sc->session == NULL
3684 || (sc->version < TLS1_VERSION && sc->version != DTLS1_BAD_VER))
3687 return s->method->ssl3_enc->export_keying_material(sc, out, olen, label,
3689 contextlen, use_context);
3692 int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
3693 const char *label, size_t llen,
3694 const unsigned char *context,
3697 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3702 if (sc->version != TLS1_3_VERSION)
3705 return tls13_export_keying_material_early(sc, out, olen, label, llen,
3706 context, contextlen);
3709 static unsigned long ssl_session_hash(const SSL_SESSION *a)
3711 const unsigned char *session_id = a->session_id;
3713 unsigned char tmp_storage[4];
3715 if (a->session_id_length < sizeof(tmp_storage)) {
3716 memset(tmp_storage, 0, sizeof(tmp_storage));
3717 memcpy(tmp_storage, a->session_id, a->session_id_length);
3718 session_id = tmp_storage;
3722 ((unsigned long)session_id[0]) |
3723 ((unsigned long)session_id[1] << 8L) |
3724 ((unsigned long)session_id[2] << 16L) |
3725 ((unsigned long)session_id[3] << 24L);
3730 * NB: If this function (or indeed the hash function which uses a sort of
3731 * coarser function than this one) is changed, ensure
3732 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3733 * being able to construct an SSL_SESSION that will collide with any existing
3734 * session with a matching session ID.
3736 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
3738 if (a->ssl_version != b->ssl_version)
3740 if (a->session_id_length != b->session_id_length)
3742 return memcmp(a->session_id, b->session_id, a->session_id_length);
3746 * These wrapper functions should remain rather than redeclaring
3747 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3748 * variable. The reason is that the functions aren't static, they're exposed
3752 SSL_CTX *SSL_CTX_new_ex(OSSL_LIB_CTX *libctx, const char *propq,
3753 const SSL_METHOD *meth)
3755 SSL_CTX *ret = NULL;
3756 #ifndef OPENSSL_NO_COMP_ALG
3761 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_METHOD_PASSED);
3765 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
3768 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3769 ERR_raise(ERR_LIB_SSL, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
3772 ret = OPENSSL_zalloc(sizeof(*ret));
3776 /* Init the reference counting before any call to SSL_CTX_free */
3777 ret->references = 1;
3778 ret->lock = CRYPTO_THREAD_lock_new();
3779 if (ret->lock == NULL) {
3780 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3784 #ifdef TSAN_REQUIRES_LOCKING
3785 ret->tsan_lock = CRYPTO_THREAD_lock_new();
3786 if (ret->tsan_lock == NULL) {
3787 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3792 ret->libctx = libctx;
3793 if (propq != NULL) {
3794 ret->propq = OPENSSL_strdup(propq);
3795 if (ret->propq == NULL)
3800 ret->min_proto_version = 0;
3801 ret->max_proto_version = 0;
3802 ret->mode = SSL_MODE_AUTO_RETRY;
3803 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
3804 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
3805 /* We take the system default. */
3806 ret->session_timeout = meth->get_timeout();
3807 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
3808 ret->verify_mode = SSL_VERIFY_NONE;
3810 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
3811 if (ret->sessions == NULL) {
3812 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3815 ret->cert_store = X509_STORE_new();
3816 if (ret->cert_store == NULL) {
3817 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3820 #ifndef OPENSSL_NO_CT
3821 ret->ctlog_store = CTLOG_STORE_new_ex(libctx, propq);
3822 if (ret->ctlog_store == NULL) {
3823 ERR_raise(ERR_LIB_SSL, ERR_R_CT_LIB);
3828 /* initialize cipher/digest methods table */
3829 if (!ssl_load_ciphers(ret)) {
3830 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3834 if (!ssl_load_groups(ret)) {
3835 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3839 /* load provider sigalgs */
3840 if (!ssl_load_sigalgs(ret)) {
3841 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3845 /* initialise sig algs */
3846 if (!ssl_setup_sigalgs(ret)) {
3847 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3851 if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites())) {
3852 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3856 if ((ret->cert = ssl_cert_new(SSL_PKEY_NUM + ret->sigalg_list_len)) == NULL) {
3857 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3861 if (!ssl_create_cipher_list(ret,
3862 ret->tls13_ciphersuites,
3863 &ret->cipher_list, &ret->cipher_list_by_id,
3864 OSSL_default_cipher_list(), ret->cert)
3865 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
3866 ERR_raise(ERR_LIB_SSL, SSL_R_LIBRARY_HAS_NO_CIPHERS);
3870 ret->param = X509_VERIFY_PARAM_new();
3871 if (ret->param == NULL) {
3872 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3877 * If these aren't available from the provider we'll get NULL returns.
3878 * That's fine but will cause errors later if SSLv3 is negotiated
3880 ret->md5 = ssl_evp_md_fetch(libctx, NID_md5, propq);
3881 ret->sha1 = ssl_evp_md_fetch(libctx, NID_sha1, propq);
3883 if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL) {
3884 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3888 if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL) {
3889 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3893 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) {
3894 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3898 if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
3901 /* No compression for DTLS */
3902 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
3903 ret->comp_methods = SSL_COMP_get_compression_methods();
3905 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3906 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3908 /* Setup RFC5077 ticket keys */
3909 if ((RAND_bytes_ex(libctx, ret->ext.tick_key_name,
3910 sizeof(ret->ext.tick_key_name), 0) <= 0)
3911 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_hmac_key,
3912 sizeof(ret->ext.secure->tick_hmac_key), 0) <= 0)
3913 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_aes_key,
3914 sizeof(ret->ext.secure->tick_aes_key), 0) <= 0))
3915 ret->options |= SSL_OP_NO_TICKET;
3917 if (RAND_priv_bytes_ex(libctx, ret->ext.cookie_hmac_key,
3918 sizeof(ret->ext.cookie_hmac_key), 0) <= 0) {
3919 ERR_raise(ERR_LIB_SSL, ERR_R_RAND_LIB);
3923 #ifndef OPENSSL_NO_SRP
3924 if (!ssl_ctx_srp_ctx_init_intern(ret)) {
3925 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3929 #ifndef OPENSSL_NO_ENGINE
3930 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3931 # define eng_strx(x) #x
3932 # define eng_str(x) eng_strx(x)
3933 /* Use specific client engine automatically... ignore errors */
3936 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3939 ENGINE_load_builtin_engines();
3940 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3942 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
3948 #ifndef OPENSSL_NO_COMP_ALG
3950 * Set the default order: brotli, zlib, zstd
3951 * Including only those enabled algorithms
3953 memset(ret->cert_comp_prefs, 0, sizeof(ret->cert_comp_prefs));
3955 if (ossl_comp_has_alg(TLSEXT_comp_cert_brotli))
3956 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_brotli;
3957 if (ossl_comp_has_alg(TLSEXT_comp_cert_zlib))
3958 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zlib;
3959 if (ossl_comp_has_alg(TLSEXT_comp_cert_zstd))
3960 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zstd;
3963 * Disable compression by default to prevent CRIME. Applications can
3964 * re-enable compression by configuring
3965 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3966 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3967 * middlebox compatibility by default. This may be disabled by default in
3968 * a later OpenSSL version.
3970 ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
3972 ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
3975 * We cannot usefully set a default max_early_data here (which gets
3976 * propagated in SSL_new(), for the following reason: setting the
3977 * SSL field causes tls_construct_stoc_early_data() to tell the
3978 * client that early data will be accepted when constructing a TLS 1.3
3979 * session ticket, and the client will accordingly send us early data
3980 * when using that ticket (if the client has early data to send).
3981 * However, in order for the early data to actually be consumed by
3982 * the application, the application must also have calls to
3983 * SSL_read_early_data(); otherwise we'll just skip past the early data
3984 * and ignore it. So, since the application must add calls to
3985 * SSL_read_early_data(), we also require them to add
3986 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3987 * eliminating the bandwidth-wasting early data in the case described
3990 ret->max_early_data = 0;
3993 * Default recv_max_early_data is a fully loaded single record. Could be
3994 * split across multiple records in practice. We set this differently to
3995 * max_early_data so that, in the default case, we do not advertise any
3996 * support for early_data, but if a client were to send us some (e.g.
3997 * because of an old, stale ticket) then we will tolerate it and skip over
4000 ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
4002 /* By default we send two session tickets automatically in TLSv1.3 */
4003 ret->num_tickets = 2;
4005 ssl_ctx_system_config(ret);
4013 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
4015 return SSL_CTX_new_ex(NULL, NULL, meth);
4018 int SSL_CTX_up_ref(SSL_CTX *ctx)
4022 if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0)
4025 REF_PRINT_COUNT("SSL_CTX", ctx);
4026 REF_ASSERT_ISNT(i < 2);
4027 return ((i > 1) ? 1 : 0);
4030 void SSL_CTX_free(SSL_CTX *a)
4038 CRYPTO_DOWN_REF(&a->references, &i, a->lock);
4039 REF_PRINT_COUNT("SSL_CTX", a);
4042 REF_ASSERT_ISNT(i < 0);
4044 X509_VERIFY_PARAM_free(a->param);
4045 dane_ctx_final(&a->dane);
4048 * Free internal session cache. However: the remove_cb() may reference
4049 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
4050 * after the sessions were flushed.
4051 * As the ex_data handling routines might also touch the session cache,
4052 * the most secure solution seems to be: empty (flush) the cache, then
4053 * free ex_data, then finally free the cache.
4054 * (See ticket [openssl.org #212].)
4056 if (a->sessions != NULL)
4057 SSL_CTX_flush_sessions(a, 0);
4059 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
4060 lh_SSL_SESSION_free(a->sessions);
4061 X509_STORE_free(a->cert_store);
4062 #ifndef OPENSSL_NO_CT
4063 CTLOG_STORE_free(a->ctlog_store);
4065 sk_SSL_CIPHER_free(a->cipher_list);
4066 sk_SSL_CIPHER_free(a->cipher_list_by_id);
4067 sk_SSL_CIPHER_free(a->tls13_ciphersuites);
4068 ssl_cert_free(a->cert);
4069 sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
4070 sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
4071 OSSL_STACK_OF_X509_free(a->extra_certs);
4072 a->comp_methods = NULL;
4073 #ifndef OPENSSL_NO_SRTP
4074 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
4076 #ifndef OPENSSL_NO_SRP
4077 ssl_ctx_srp_ctx_free_intern(a);
4079 #ifndef OPENSSL_NO_ENGINE
4080 tls_engine_finish(a->client_cert_engine);
4083 OPENSSL_free(a->ext.ecpointformats);
4084 OPENSSL_free(a->ext.supportedgroups);
4085 OPENSSL_free(a->ext.supported_groups_default);
4086 OPENSSL_free(a->ext.alpn);
4087 OPENSSL_secure_free(a->ext.secure);
4089 ssl_evp_md_free(a->md5);
4090 ssl_evp_md_free(a->sha1);
4092 for (j = 0; j < SSL_ENC_NUM_IDX; j++)
4093 ssl_evp_cipher_free(a->ssl_cipher_methods[j]);
4094 for (j = 0; j < SSL_MD_NUM_IDX; j++)
4095 ssl_evp_md_free(a->ssl_digest_methods[j]);
4096 for (j = 0; j < a->group_list_len; j++) {
4097 OPENSSL_free(a->group_list[j].tlsname);
4098 OPENSSL_free(a->group_list[j].realname);
4099 OPENSSL_free(a->group_list[j].algorithm);
4101 OPENSSL_free(a->group_list);
4102 for (j = 0; j < a->sigalg_list_len; j++) {
4103 OPENSSL_free(a->sigalg_list[j].name);
4104 OPENSSL_free(a->sigalg_list[j].sigalg_name);
4105 OPENSSL_free(a->sigalg_list[j].sigalg_oid);
4106 OPENSSL_free(a->sigalg_list[j].sig_name);
4107 OPENSSL_free(a->sigalg_list[j].sig_oid);
4108 OPENSSL_free(a->sigalg_list[j].hash_name);
4109 OPENSSL_free(a->sigalg_list[j].hash_oid);
4110 OPENSSL_free(a->sigalg_list[j].keytype);
4111 OPENSSL_free(a->sigalg_list[j].keytype_oid);
4113 OPENSSL_free(a->sigalg_list);
4114 OPENSSL_free(a->ssl_cert_info);
4116 OPENSSL_free(a->sigalg_lookup_cache);
4117 OPENSSL_free(a->tls12_sigalgs);
4119 OPENSSL_free(a->client_cert_type);
4120 OPENSSL_free(a->server_cert_type);
4122 CRYPTO_THREAD_lock_free(a->lock);
4123 #ifdef TSAN_REQUIRES_LOCKING
4124 CRYPTO_THREAD_lock_free(a->tsan_lock);
4127 OPENSSL_free(a->propq);
4132 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
4134 ctx->default_passwd_callback = cb;
4137 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
4139 ctx->default_passwd_callback_userdata = u;
4142 pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
4144 return ctx->default_passwd_callback;
4147 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
4149 return ctx->default_passwd_callback_userdata;
4152 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
4154 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4159 sc->default_passwd_callback = cb;
4162 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
4164 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4169 sc->default_passwd_callback_userdata = u;
4172 pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
4174 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4179 return sc->default_passwd_callback;
4182 void *SSL_get_default_passwd_cb_userdata(SSL *s)
4184 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4189 return sc->default_passwd_callback_userdata;
4192 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
4193 int (*cb) (X509_STORE_CTX *, void *),
4196 ctx->app_verify_callback = cb;
4197 ctx->app_verify_arg = arg;
4200 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
4201 int (*cb) (int, X509_STORE_CTX *))
4203 ctx->verify_mode = mode;
4204 ctx->default_verify_callback = cb;
4207 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
4209 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
4212 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
4214 ssl_cert_set_cert_cb(c->cert, cb, arg);
4217 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
4219 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4224 ssl_cert_set_cert_cb(sc->cert, cb, arg);
4227 void ssl_set_masks(SSL_CONNECTION *s)
4230 uint32_t *pvalid = s->s3.tmp.valid_flags;
4231 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
4232 unsigned long mask_k, mask_a;
4233 int have_ecc_cert, ecdsa_ok;
4238 dh_tmp = (c->dh_tmp != NULL
4239 || c->dh_tmp_cb != NULL
4242 rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4243 rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4244 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
4245 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
4249 OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
4250 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
4252 #ifndef OPENSSL_NO_GOST
4253 if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
4254 mask_k |= SSL_kGOST | SSL_kGOST18;
4255 mask_a |= SSL_aGOST12;
4257 if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
4258 mask_k |= SSL_kGOST | SSL_kGOST18;
4259 mask_a |= SSL_aGOST12;
4261 if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
4262 mask_k |= SSL_kGOST;
4263 mask_a |= SSL_aGOST01;
4274 * If we only have an RSA-PSS certificate allow RSA authentication
4275 * if TLS 1.2 and peer supports it.
4278 if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
4279 && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
4280 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION))
4287 mask_a |= SSL_aNULL;
4290 * You can do anything with an RPK key, since there's no cert to restrict it
4291 * But we need to check for private keys
4293 if (pvalid[SSL_PKEY_RSA] & CERT_PKEY_RPK) {
4297 if (pvalid[SSL_PKEY_ECC] & CERT_PKEY_RPK)
4298 mask_a |= SSL_aECDSA;
4299 if (TLS1_get_version(&s->ssl) == TLS1_2_VERSION) {
4300 if (pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_RPK)
4302 if (pvalid[SSL_PKEY_ED25519] & CERT_PKEY_RPK
4303 || pvalid[SSL_PKEY_ED448] & CERT_PKEY_RPK)
4304 mask_a |= SSL_aECDSA;
4308 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
4309 * depending on the key usage extension.
4311 if (have_ecc_cert) {
4313 ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
4314 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
4315 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
4318 mask_a |= SSL_aECDSA;
4320 /* Allow Ed25519 for TLS 1.2 if peer supports it */
4321 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
4322 && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
4323 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4324 mask_a |= SSL_aECDSA;
4326 /* Allow Ed448 for TLS 1.2 if peer supports it */
4327 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
4328 && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
4329 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4330 mask_a |= SSL_aECDSA;
4332 mask_k |= SSL_kECDHE;
4334 #ifndef OPENSSL_NO_PSK
4337 if (mask_k & SSL_kRSA)
4338 mask_k |= SSL_kRSAPSK;
4339 if (mask_k & SSL_kDHE)
4340 mask_k |= SSL_kDHEPSK;
4341 if (mask_k & SSL_kECDHE)
4342 mask_k |= SSL_kECDHEPSK;
4345 s->s3.tmp.mask_k = mask_k;
4346 s->s3.tmp.mask_a = mask_a;
4349 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CONNECTION *s)
4351 if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
4352 /* key usage, if present, must allow signing */
4353 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
4354 ERR_raise(ERR_LIB_SSL, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
4358 return 1; /* all checks are ok */
4361 int ssl_get_server_cert_serverinfo(SSL_CONNECTION *s,
4362 const unsigned char **serverinfo,
4363 size_t *serverinfo_length)
4365 CERT_PKEY *cpk = s->s3.tmp.cert;
4366 *serverinfo_length = 0;
4368 if (cpk == NULL || cpk->serverinfo == NULL)
4371 *serverinfo = cpk->serverinfo;
4372 *serverinfo_length = cpk->serverinfo_length;
4376 void ssl_update_cache(SSL_CONNECTION *s, int mode)
4381 * If the session_id_length is 0, we are not supposed to cache it, and it
4382 * would be rather hard to do anyway :-)
4384 if (s->session->session_id_length == 0)
4388 * If sid_ctx_length is 0 there is no specific application context
4389 * associated with this session, so when we try to resume it and
4390 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
4391 * indication that this is actually a session for the proper application
4392 * context, and the *handshake* will fail, not just the resumption attempt.
4393 * Do not cache (on the server) these sessions that are not resumable
4394 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
4396 if (s->server && s->session->sid_ctx_length == 0
4397 && (s->verify_mode & SSL_VERIFY_PEER) != 0)
4400 i = s->session_ctx->session_cache_mode;
4402 && (!s->hit || SSL_CONNECTION_IS_TLS13(s))) {
4404 * Add the session to the internal cache. In server side TLSv1.3 we
4405 * normally don't do this because by default it's a full stateless ticket
4406 * with only a dummy session id so there is no reason to cache it,
4408 * - we are doing early_data, in which case we cache so that we can
4410 * - the application has set a remove_session_cb so needs to know about
4411 * session timeout events
4412 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
4414 if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
4415 && (!SSL_CONNECTION_IS_TLS13(s)
4417 || (s->max_early_data > 0
4418 && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
4419 || s->session_ctx->remove_session_cb != NULL
4420 || (s->options & SSL_OP_NO_TICKET) != 0))
4421 SSL_CTX_add_session(s->session_ctx, s->session);
4424 * Add the session to the external cache. We do this even in server side
4425 * TLSv1.3 without early data because some applications just want to
4426 * know about the creation of a session and aren't doing a full cache.
4428 if (s->session_ctx->new_session_cb != NULL) {
4429 SSL_SESSION_up_ref(s->session);
4430 if (!s->session_ctx->new_session_cb(SSL_CONNECTION_GET_SSL(s),
4432 SSL_SESSION_free(s->session);
4436 /* auto flush every 255 connections */
4437 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
4438 TSAN_QUALIFIER int *stat;
4440 if (mode & SSL_SESS_CACHE_CLIENT)
4441 stat = &s->session_ctx->stats.sess_connect_good;
4443 stat = &s->session_ctx->stats.sess_accept_good;
4444 if ((ssl_tsan_load(s->session_ctx, stat) & 0xff) == 0xff)
4445 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
4449 const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
4454 const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
4459 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
4462 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4464 /* TODO(QUIC): Do we want this for QUIC? */
4466 || (s->type != SSL_TYPE_SSL_CONNECTION && s->method != meth))
4469 if (s->method != meth) {
4470 const SSL_METHOD *sm = s->method;
4471 int (*hf) (SSL *) = sc->handshake_func;
4473 if (sm->version == meth->version)
4478 ret = s->method->ssl_init(s);
4481 if (hf == sm->ssl_connect)
4482 sc->handshake_func = meth->ssl_connect;
4483 else if (hf == sm->ssl_accept)
4484 sc->handshake_func = meth->ssl_accept;
4489 int SSL_get_error(const SSL *s, int i)
4494 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4497 return SSL_ERROR_NONE;
4499 #ifndef OPENSSL_NO_QUIC
4501 reason = ossl_quic_get_error(s, i);
4502 if (reason != SSL_ERROR_NONE)
4508 return SSL_ERROR_SSL;
4511 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
4512 * where we do encode the error
4514 if ((l = ERR_peek_error()) != 0) {
4515 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
4516 return SSL_ERROR_SYSCALL;
4518 return SSL_ERROR_SSL;
4521 #ifndef OPENSSL_NO_QUIC
4525 if (SSL_want_read(s)) {
4526 bio = SSL_get_rbio(s);
4527 if (BIO_should_read(bio))
4528 return SSL_ERROR_WANT_READ;
4529 else if (BIO_should_write(bio))
4531 * This one doesn't make too much sense ... We never try to
4532 * write to the rbio, and an application program where rbio and
4533 * wbio are separate couldn't even know what it should wait for.
4534 * However if we ever set s->rwstate incorrectly (so that we
4535 * have SSL_want_read(s) instead of SSL_want_write(s)) and rbio
4536 * and wbio *are* the same, this test works around that bug; so
4537 * it might be safer to keep it.
4539 return SSL_ERROR_WANT_WRITE;
4540 else if (BIO_should_io_special(bio)) {
4541 reason = BIO_get_retry_reason(bio);
4542 if (reason == BIO_RR_CONNECT)
4543 return SSL_ERROR_WANT_CONNECT;
4544 else if (reason == BIO_RR_ACCEPT)
4545 return SSL_ERROR_WANT_ACCEPT;
4547 return SSL_ERROR_SYSCALL; /* unknown */
4551 if (SSL_want_write(s)) {
4553 * Access wbio directly - in order to use the buffered bio if
4557 if (BIO_should_write(bio))
4558 return SSL_ERROR_WANT_WRITE;
4559 else if (BIO_should_read(bio))
4561 * See above (SSL_want_read(s) with BIO_should_write(bio))
4563 return SSL_ERROR_WANT_READ;
4564 else if (BIO_should_io_special(bio)) {
4565 reason = BIO_get_retry_reason(bio);
4566 if (reason == BIO_RR_CONNECT)
4567 return SSL_ERROR_WANT_CONNECT;
4568 else if (reason == BIO_RR_ACCEPT)
4569 return SSL_ERROR_WANT_ACCEPT;
4571 return SSL_ERROR_SYSCALL;
4576 if (SSL_want_x509_lookup(s))
4577 return SSL_ERROR_WANT_X509_LOOKUP;
4578 if (SSL_want_retry_verify(s))
4579 return SSL_ERROR_WANT_RETRY_VERIFY;
4580 if (SSL_want_async(s))
4581 return SSL_ERROR_WANT_ASYNC;
4582 if (SSL_want_async_job(s))
4583 return SSL_ERROR_WANT_ASYNC_JOB;
4584 if (SSL_want_client_hello_cb(s))
4585 return SSL_ERROR_WANT_CLIENT_HELLO_CB;
4587 if ((sc->shutdown & SSL_RECEIVED_SHUTDOWN) &&
4588 (sc->s3.warn_alert == SSL_AD_CLOSE_NOTIFY))
4589 return SSL_ERROR_ZERO_RETURN;
4591 return SSL_ERROR_SYSCALL;
4594 static int ssl_do_handshake_intern(void *vargs)
4596 struct ssl_async_args *args = (struct ssl_async_args *)vargs;
4598 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4603 return sc->handshake_func(s);
4606 int SSL_do_handshake(SSL *s)
4609 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4611 #ifndef OPENSSL_NO_QUIC
4613 return ossl_quic_do_handshake(s);
4616 if (sc->handshake_func == NULL) {
4617 ERR_raise(ERR_LIB_SSL, SSL_R_CONNECTION_TYPE_NOT_SET);
4621 ossl_statem_check_finish_init(sc, -1);
4623 s->method->ssl_renegotiate_check(s, 0);
4625 if (SSL_in_init(s) || SSL_in_before(s)) {
4626 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
4627 struct ssl_async_args args;
4629 memset(&args, 0, sizeof(args));
4632 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
4634 ret = sc->handshake_func(s);
4640 void SSL_set_accept_state(SSL *s)
4642 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4644 #ifndef OPENSSL_NO_QUIC
4646 ossl_quic_set_accept_state(s);
4653 ossl_statem_clear(sc);
4654 sc->handshake_func = s->method->ssl_accept;
4655 /* Ignore return value. Its a void public API function */
4656 clear_record_layer(sc);
4659 void SSL_set_connect_state(SSL *s)
4661 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4663 #ifndef OPENSSL_NO_QUIC
4665 ossl_quic_set_connect_state(s);
4672 ossl_statem_clear(sc);
4673 sc->handshake_func = s->method->ssl_connect;
4674 /* Ignore return value. Its a void public API function */
4675 clear_record_layer(sc);
4678 int ssl_undefined_function(SSL *s)
4680 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4684 int ssl_undefined_void_function(void)
4686 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4690 int ssl_undefined_const_function(const SSL *s)
4695 const SSL_METHOD *ssl_bad_method(int ver)
4697 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4701 const char *ssl_protocol_to_string(int version)
4705 case TLS1_3_VERSION:
4708 case TLS1_2_VERSION:
4711 case TLS1_1_VERSION:
4726 case DTLS1_2_VERSION:
4734 const char *SSL_get_version(const SSL *s)
4736 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4738 #ifndef OPENSSL_NO_QUIC
4739 /* We only support QUICv1 - so if its QUIC its QUICv1 */
4740 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
4747 return ssl_protocol_to_string(sc->version);
4750 static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
4752 STACK_OF(X509_NAME) *sk;
4761 if ((sk = sk_X509_NAME_new_null()) == NULL)
4763 for (i = 0; i < sk_X509_NAME_num(src); i++) {
4764 xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
4766 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4769 if (sk_X509_NAME_insert(sk, xn, i) == 0) {
4771 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4780 SSL *SSL_dup(SSL *s)
4784 /* TODO(QUIC): Add a SSL_METHOD function for duplication */
4785 SSL_CONNECTION *retsc;
4786 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4791 /* If we're not quiescent, just up_ref! */
4792 if (!SSL_in_init(s) || !SSL_in_before(s)) {
4793 CRYPTO_UP_REF(&s->references, &i, s->lock);
4798 * Otherwise, copy configuration state, and session if set.
4800 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
4802 if ((retsc = SSL_CONNECTION_FROM_SSL_ONLY(ret)) == NULL)
4805 if (sc->session != NULL) {
4807 * Arranges to share the same session via up_ref. This "copies"
4808 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4810 if (!SSL_copy_session_id(ret, s))
4814 * No session has been established yet, so we have to expect that
4815 * s->cert or ret->cert will be changed later -- they should not both
4816 * point to the same object, and thus we can't use
4817 * SSL_copy_session_id.
4819 if (!SSL_set_ssl_method(ret, s->method))
4822 if (sc->cert != NULL) {
4823 ssl_cert_free(retsc->cert);
4824 retsc->cert = ssl_cert_dup(sc->cert);
4825 if (retsc->cert == NULL)
4829 if (!SSL_set_session_id_context(ret, sc->sid_ctx,
4830 (int)sc->sid_ctx_length))
4834 if (!ssl_dane_dup(retsc, sc))
4836 retsc->version = sc->version;
4837 retsc->options = sc->options;
4838 retsc->min_proto_version = sc->min_proto_version;
4839 retsc->max_proto_version = sc->max_proto_version;
4840 retsc->mode = sc->mode;
4841 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
4842 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
4843 retsc->msg_callback = sc->msg_callback;
4844 retsc->msg_callback_arg = sc->msg_callback_arg;
4845 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
4846 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
4847 retsc->generate_session_id = sc->generate_session_id;
4849 SSL_set_info_callback(ret, SSL_get_info_callback(s));
4851 /* copy app data, a little dangerous perhaps */
4852 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
4855 retsc->server = sc->server;
4856 if (sc->handshake_func) {
4858 SSL_set_accept_state(ret);
4860 SSL_set_connect_state(ret);
4862 retsc->shutdown = sc->shutdown;
4863 retsc->hit = sc->hit;
4865 retsc->default_passwd_callback = sc->default_passwd_callback;
4866 retsc->default_passwd_callback_userdata = sc->default_passwd_callback_userdata;
4868 X509_VERIFY_PARAM_inherit(retsc->param, sc->param);
4870 /* dup the cipher_list and cipher_list_by_id stacks */
4871 if (sc->cipher_list != NULL) {
4872 if ((retsc->cipher_list = sk_SSL_CIPHER_dup(sc->cipher_list)) == NULL)
4875 if (sc->cipher_list_by_id != NULL)
4876 if ((retsc->cipher_list_by_id = sk_SSL_CIPHER_dup(sc->cipher_list_by_id))
4880 /* Dup the client_CA list */
4881 if (!dup_ca_names(&retsc->ca_names, sc->ca_names)
4882 || !dup_ca_names(&retsc->client_ca_names, sc->client_ca_names))
4892 X509 *SSL_get_certificate(const SSL *s)
4894 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4899 if (sc->cert != NULL)
4900 return sc->cert->key->x509;
4905 EVP_PKEY *SSL_get_privatekey(const SSL *s)
4907 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4912 if (sc->cert != NULL)
4913 return sc->cert->key->privatekey;
4918 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
4920 if (ctx->cert != NULL)
4921 return ctx->cert->key->x509;
4926 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
4928 if (ctx->cert != NULL)
4929 return ctx->cert->key->privatekey;
4934 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
4936 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4941 if ((sc->session != NULL) && (sc->session->cipher != NULL))
4942 return sc->session->cipher;
4946 const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
4948 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4953 return sc->s3.tmp.new_cipher;
4956 const COMP_METHOD *SSL_get_current_compression(const SSL *s)
4958 #ifndef OPENSSL_NO_COMP
4959 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
4964 return sc->rlayer.wrlmethod->get_compression(sc->rlayer.wrl);
4970 const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
4972 #ifndef OPENSSL_NO_COMP
4973 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
4978 return sc->rlayer.rrlmethod->get_compression(sc->rlayer.rrl);
4984 int ssl_init_wbio_buffer(SSL_CONNECTION *s)
4988 if (s->bbio != NULL) {
4989 /* Already buffered. */
4993 bbio = BIO_new(BIO_f_buffer());
4994 if (bbio == NULL || BIO_set_read_buffer_size(bbio, 1) <= 0) {
4996 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
5000 s->wbio = BIO_push(bbio, s->wbio);
5002 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5007 int ssl_free_wbio_buffer(SSL_CONNECTION *s)
5009 /* callers ensure s is never null */
5010 if (s->bbio == NULL)
5013 s->wbio = BIO_pop(s->wbio);
5014 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5022 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
5024 ctx->quiet_shutdown = mode;
5027 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
5029 return ctx->quiet_shutdown;
5032 void SSL_set_quiet_shutdown(SSL *s, int mode)
5034 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5036 /* TODO(QUIC): Do we want this for QUIC? */
5040 sc->quiet_shutdown = mode;
5043 int SSL_get_quiet_shutdown(const SSL *s)
5045 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5047 /* TODO(QUIC): Do we want this for QUIC? */
5051 return sc->quiet_shutdown;
5054 void SSL_set_shutdown(SSL *s, int mode)
5056 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5058 /* TODO(QUIC): Do we want this for QUIC? */
5062 sc->shutdown = mode;
5065 int SSL_get_shutdown(const SSL *s)
5067 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5069 /* TODO(QUIC): Do we want this for QUIC? */
5073 return sc->shutdown;
5076 int SSL_version(const SSL *s)
5078 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5080 #ifndef OPENSSL_NO_QUIC
5081 /* We only support QUICv1 - so if its QUIC its QUICv1 */
5082 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
5083 return OSSL_QUIC1_VERSION;
5085 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
5092 int SSL_client_version(const SSL *s)
5094 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5096 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
5100 return sc->client_version;
5103 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
5108 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
5111 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
5113 /* TODO(QUIC): Do we need this for QUIC support? */
5117 if (ssl->ctx == ctx)
5120 ctx = sc->session_ctx;
5121 new_cert = ssl_cert_dup(ctx->cert);
5122 if (new_cert == NULL) {
5126 if (!custom_exts_copy_flags(&new_cert->custext, &sc->cert->custext)) {
5127 ssl_cert_free(new_cert);
5131 ssl_cert_free(sc->cert);
5132 sc->cert = new_cert;
5135 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
5136 * so setter APIs must prevent invalid lengths from entering the system.
5138 if (!ossl_assert(sc->sid_ctx_length <= sizeof(sc->sid_ctx)))
5142 * If the session ID context matches that of the parent SSL_CTX,
5143 * inherit it from the new SSL_CTX as well. If however the context does
5144 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
5145 * leave it unchanged.
5147 if ((ssl->ctx != NULL) &&
5148 (sc->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
5149 (memcmp(sc->sid_ctx, ssl->ctx->sid_ctx, sc->sid_ctx_length) == 0)) {
5150 sc->sid_ctx_length = ctx->sid_ctx_length;
5151 memcpy(&sc->sid_ctx, &ctx->sid_ctx, sizeof(sc->sid_ctx));
5154 SSL_CTX_up_ref(ctx);
5155 SSL_CTX_free(ssl->ctx); /* decrement reference count */
5161 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
5163 return X509_STORE_set_default_paths_ex(ctx->cert_store, ctx->libctx,
5167 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
5169 X509_LOOKUP *lookup;
5171 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
5175 /* We ignore errors, in case the directory doesn't exist */
5178 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
5185 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
5187 X509_LOOKUP *lookup;
5189 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
5193 /* We ignore errors, in case the file doesn't exist */
5196 X509_LOOKUP_load_file_ex(lookup, NULL, X509_FILETYPE_DEFAULT, ctx->libctx,
5204 int SSL_CTX_set_default_verify_store(SSL_CTX *ctx)
5206 X509_LOOKUP *lookup;
5208 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_store());
5212 /* We ignore errors, in case the directory doesn't exist */
5215 X509_LOOKUP_add_store_ex(lookup, NULL, ctx->libctx, ctx->propq);
5222 int SSL_CTX_load_verify_file(SSL_CTX *ctx, const char *CAfile)
5224 return X509_STORE_load_file_ex(ctx->cert_store, CAfile, ctx->libctx,
5228 int SSL_CTX_load_verify_dir(SSL_CTX *ctx, const char *CApath)
5230 return X509_STORE_load_path(ctx->cert_store, CApath);
5233 int SSL_CTX_load_verify_store(SSL_CTX *ctx, const char *CAstore)
5235 return X509_STORE_load_store_ex(ctx->cert_store, CAstore, ctx->libctx,
5239 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
5242 if (CAfile == NULL && CApath == NULL)
5244 if (CAfile != NULL && !SSL_CTX_load_verify_file(ctx, CAfile))
5246 if (CApath != NULL && !SSL_CTX_load_verify_dir(ctx, CApath))
5251 void SSL_set_info_callback(SSL *ssl,
5252 void (*cb) (const SSL *ssl, int type, int val))
5254 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5259 sc->info_callback = cb;
5263 * One compiler (Diab DCC) doesn't like argument names in returned function
5266 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
5269 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5274 return sc->info_callback;
5277 void SSL_set_verify_result(SSL *ssl, long arg)
5279 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5284 sc->verify_result = arg;
5287 long SSL_get_verify_result(const SSL *ssl)
5289 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5294 return sc->verify_result;
5297 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
5299 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5305 return sizeof(sc->s3.client_random);
5306 if (outlen > sizeof(sc->s3.client_random))
5307 outlen = sizeof(sc->s3.client_random);
5308 memcpy(out, sc->s3.client_random, outlen);
5312 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
5314 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5320 return sizeof(sc->s3.server_random);
5321 if (outlen > sizeof(sc->s3.server_random))
5322 outlen = sizeof(sc->s3.server_random);
5323 memcpy(out, sc->s3.server_random, outlen);
5327 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
5328 unsigned char *out, size_t outlen)
5331 return session->master_key_length;
5332 if (outlen > session->master_key_length)
5333 outlen = session->master_key_length;
5334 memcpy(out, session->master_key, outlen);
5338 int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
5341 if (len > sizeof(sess->master_key))
5344 memcpy(sess->master_key, in, len);
5345 sess->master_key_length = len;
5350 int SSL_set_ex_data(SSL *s, int idx, void *arg)
5352 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5355 void *SSL_get_ex_data(const SSL *s, int idx)
5357 return CRYPTO_get_ex_data(&s->ex_data, idx);
5360 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
5362 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5365 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
5367 return CRYPTO_get_ex_data(&s->ex_data, idx);
5370 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
5372 return ctx->cert_store;
5375 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
5377 X509_STORE_free(ctx->cert_store);
5378 ctx->cert_store = store;
5381 void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
5384 X509_STORE_up_ref(store);
5385 SSL_CTX_set_cert_store(ctx, store);
5388 int SSL_want(const SSL *s)
5390 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5398 #ifndef OPENSSL_NO_PSK
5399 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
5401 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5402 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5405 OPENSSL_free(ctx->cert->psk_identity_hint);
5406 if (identity_hint != NULL) {
5407 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5408 if (ctx->cert->psk_identity_hint == NULL)
5411 ctx->cert->psk_identity_hint = NULL;
5415 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
5417 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5422 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5423 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5426 OPENSSL_free(sc->cert->psk_identity_hint);
5427 if (identity_hint != NULL) {
5428 sc->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5429 if (sc->cert->psk_identity_hint == NULL)
5432 sc->cert->psk_identity_hint = NULL;
5436 const char *SSL_get_psk_identity_hint(const SSL *s)
5438 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5440 if (sc == NULL || sc->session == NULL)
5443 return sc->session->psk_identity_hint;
5446 const char *SSL_get_psk_identity(const SSL *s)
5448 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5450 if (sc == NULL || sc->session == NULL)
5453 return sc->session->psk_identity;
5456 void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
5458 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5463 sc->psk_client_callback = cb;
5466 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
5468 ctx->psk_client_callback = cb;
5471 void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
5473 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5478 sc->psk_server_callback = cb;
5481 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
5483 ctx->psk_server_callback = cb;
5487 void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
5489 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5494 sc->psk_find_session_cb = cb;
5497 void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
5498 SSL_psk_find_session_cb_func cb)
5500 ctx->psk_find_session_cb = cb;
5503 void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
5505 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5510 sc->psk_use_session_cb = cb;
5513 void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
5514 SSL_psk_use_session_cb_func cb)
5516 ctx->psk_use_session_cb = cb;
5519 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
5520 void (*cb) (int write_p, int version,
5521 int content_type, const void *buf,
5522 size_t len, SSL *ssl, void *arg))
5524 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5527 void SSL_set_msg_callback(SSL *ssl,
5528 void (*cb) (int write_p, int version,
5529 int content_type, const void *buf,
5530 size_t len, SSL *ssl, void *arg))
5532 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5535 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
5536 int (*cb) (SSL *ssl,
5540 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5541 (void (*)(void))cb);
5544 void SSL_set_not_resumable_session_callback(SSL *ssl,
5545 int (*cb) (SSL *ssl,
5546 int is_forward_secure))
5548 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5549 (void (*)(void))cb);
5552 void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
5553 size_t (*cb) (SSL *ssl, int type,
5554 size_t len, void *arg))
5556 ctx->record_padding_cb = cb;
5559 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
5561 ctx->record_padding_arg = arg;
5564 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
5566 return ctx->record_padding_arg;
5569 int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
5571 /* block size of 0 or 1 is basically no padding */
5572 if (block_size == 1)
5573 ctx->block_padding = 0;
5574 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5575 ctx->block_padding = block_size;
5581 int SSL_set_record_padding_callback(SSL *ssl,
5582 size_t (*cb) (SSL *ssl, int type,
5583 size_t len, void *arg))
5586 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5591 b = SSL_get_wbio(ssl);
5592 if (b == NULL || !BIO_get_ktls_send(b)) {
5593 sc->rlayer.record_padding_cb = cb;
5599 void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
5601 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5606 sc->rlayer.record_padding_arg = arg;
5609 void *SSL_get_record_padding_callback_arg(const SSL *ssl)
5611 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5616 return sc->rlayer.record_padding_arg;
5619 int SSL_set_block_padding(SSL *ssl, size_t block_size)
5621 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5626 /* block size of 0 or 1 is basically no padding */
5627 if (block_size == 1)
5628 sc->rlayer.block_padding = 0;
5629 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5630 sc->rlayer.block_padding = block_size;
5636 int SSL_set_num_tickets(SSL *s, size_t num_tickets)
5638 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5643 sc->num_tickets = num_tickets;
5648 size_t SSL_get_num_tickets(const SSL *s)
5650 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5655 return sc->num_tickets;
5658 int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
5660 ctx->num_tickets = num_tickets;
5665 size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
5667 return ctx->num_tickets;
5670 /* Retrieve handshake hashes */
5671 int ssl_handshake_hash(SSL_CONNECTION *s,
5672 unsigned char *out, size_t outlen,
5675 EVP_MD_CTX *ctx = NULL;
5676 EVP_MD_CTX *hdgst = s->s3.handshake_dgst;
5677 int hashleni = EVP_MD_CTX_get_size(hdgst);
5680 if (hashleni < 0 || (size_t)hashleni > outlen) {
5681 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5685 ctx = EVP_MD_CTX_new();
5687 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5691 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
5692 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
5693 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5697 *hashlen = hashleni;
5701 EVP_MD_CTX_free(ctx);
5705 int SSL_session_reused(const SSL *s)
5707 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5715 int SSL_is_server(const SSL *s)
5717 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5725 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
5726 void SSL_set_debug(SSL *s, int debug)
5728 /* Old function was do-nothing anyway... */
5734 void SSL_set_security_level(SSL *s, int level)
5736 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5741 sc->cert->sec_level = level;
5744 int SSL_get_security_level(const SSL *s)
5746 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5751 return sc->cert->sec_level;
5754 void SSL_set_security_callback(SSL *s,
5755 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5756 int op, int bits, int nid,
5757 void *other, void *ex))
5759 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5764 sc->cert->sec_cb = cb;
5767 int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
5768 const SSL_CTX *ctx, int op,
5769 int bits, int nid, void *other,
5771 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5776 return sc->cert->sec_cb;
5779 void SSL_set0_security_ex_data(SSL *s, void *ex)
5781 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5786 sc->cert->sec_ex = ex;
5789 void *SSL_get0_security_ex_data(const SSL *s)
5791 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5796 return sc->cert->sec_ex;
5799 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
5801 ctx->cert->sec_level = level;
5804 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
5806 return ctx->cert->sec_level;
5809 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
5810 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5811 int op, int bits, int nid,
5812 void *other, void *ex))
5814 ctx->cert->sec_cb = cb;
5817 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
5823 return ctx->cert->sec_cb;
5826 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
5828 ctx->cert->sec_ex = ex;
5831 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
5833 return ctx->cert->sec_ex;
5836 uint64_t SSL_CTX_get_options(const SSL_CTX *ctx)
5838 return ctx->options;
5841 uint64_t SSL_get_options(const SSL *s)
5843 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5851 uint64_t SSL_CTX_set_options(SSL_CTX *ctx, uint64_t op)
5853 return ctx->options |= op;
5856 uint64_t SSL_set_options(SSL *s, uint64_t op)
5858 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5859 OSSL_PARAM options[2], *opts = options;
5866 *opts++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS,
5868 *opts = OSSL_PARAM_construct_end();
5870 /* Ignore return value */
5871 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
5876 uint64_t SSL_CTX_clear_options(SSL_CTX *ctx, uint64_t op)
5878 return ctx->options &= ~op;
5881 uint64_t SSL_clear_options(SSL *s, uint64_t op)
5883 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5888 return sc->options &= ~op;
5891 STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
5893 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5898 return sc->verified_chain;
5901 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
5903 #ifndef OPENSSL_NO_CT
5906 * Moves SCTs from the |src| stack to the |dst| stack.
5907 * The source of each SCT will be set to |origin|.
5908 * If |dst| points to a NULL pointer, a new stack will be created and owned by
5910 * Returns the number of SCTs moved, or a negative integer if an error occurs.
5912 static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
5913 sct_source_t origin)
5919 *dst = sk_SCT_new_null();
5921 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
5926 while ((sct = sk_SCT_pop(src)) != NULL) {
5927 if (SCT_set_source(sct, origin) != 1)
5930 if (sk_SCT_push(*dst, sct) <= 0)
5938 sk_SCT_push(src, sct); /* Put the SCT back */
5943 * Look for data collected during ServerHello and parse if found.
5944 * Returns the number of SCTs extracted.
5946 static int ct_extract_tls_extension_scts(SSL_CONNECTION *s)
5948 int scts_extracted = 0;
5950 if (s->ext.scts != NULL) {
5951 const unsigned char *p = s->ext.scts;
5952 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
5954 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
5956 SCT_LIST_free(scts);
5959 return scts_extracted;
5963 * Checks for an OCSP response and then attempts to extract any SCTs found if it
5964 * contains an SCT X509 extension. They will be stored in |s->scts|.
5966 * - The number of SCTs extracted, assuming an OCSP response exists.
5967 * - 0 if no OCSP response exists or it contains no SCTs.
5968 * - A negative integer if an error occurs.
5970 static int ct_extract_ocsp_response_scts(SSL_CONNECTION *s)
5972 # ifndef OPENSSL_NO_OCSP
5973 int scts_extracted = 0;
5974 const unsigned char *p;
5975 OCSP_BASICRESP *br = NULL;
5976 OCSP_RESPONSE *rsp = NULL;
5977 STACK_OF(SCT) *scts = NULL;
5980 if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
5983 p = s->ext.ocsp.resp;
5984 rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
5988 br = OCSP_response_get1_basic(rsp);
5992 for (i = 0; i < OCSP_resp_count(br); ++i) {
5993 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
5999 OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
6001 ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
6002 if (scts_extracted < 0)
6006 SCT_LIST_free(scts);
6007 OCSP_BASICRESP_free(br);
6008 OCSP_RESPONSE_free(rsp);
6009 return scts_extracted;
6011 /* Behave as if no OCSP response exists */
6017 * Attempts to extract SCTs from the peer certificate.
6018 * Return the number of SCTs extracted, or a negative integer if an error
6021 static int ct_extract_x509v3_extension_scts(SSL_CONNECTION *s)
6023 int scts_extracted = 0;
6024 X509 *cert = s->session != NULL ? s->session->peer : NULL;
6027 STACK_OF(SCT) *scts =
6028 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
6031 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
6033 SCT_LIST_free(scts);
6036 return scts_extracted;
6040 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
6041 * response (if it exists) and X509v3 extensions in the certificate.
6042 * Returns NULL if an error occurs.
6044 const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
6046 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6051 if (!sc->scts_parsed) {
6052 if (ct_extract_tls_extension_scts(sc) < 0 ||
6053 ct_extract_ocsp_response_scts(sc) < 0 ||
6054 ct_extract_x509v3_extension_scts(sc) < 0)
6057 sc->scts_parsed = 1;
6064 static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx,
6065 const STACK_OF(SCT) *scts, void *unused_arg)
6070 static int ct_strict(const CT_POLICY_EVAL_CTX * ctx,
6071 const STACK_OF(SCT) *scts, void *unused_arg)
6073 int count = scts != NULL ? sk_SCT_num(scts) : 0;
6076 for (i = 0; i < count; ++i) {
6077 SCT *sct = sk_SCT_value(scts, i);
6078 int status = SCT_get_validation_status(sct);
6080 if (status == SCT_VALIDATION_STATUS_VALID)
6083 ERR_raise(ERR_LIB_SSL, SSL_R_NO_VALID_SCTS);
6087 int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
6090 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6096 * Since code exists that uses the custom extension handler for CT, look
6097 * for this and throw an error if they have already registered to use CT.
6099 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
6100 TLSEXT_TYPE_signed_certificate_timestamp))
6102 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
6106 if (callback != NULL) {
6108 * If we are validating CT, then we MUST accept SCTs served via OCSP
6110 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
6114 sc->ct_validation_callback = callback;
6115 sc->ct_validation_callback_arg = arg;
6120 int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
6121 ssl_ct_validation_cb callback, void *arg)
6124 * Since code exists that uses the custom extension handler for CT, look for
6125 * this and throw an error if they have already registered to use CT.
6127 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
6128 TLSEXT_TYPE_signed_certificate_timestamp))
6130 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
6134 ctx->ct_validation_callback = callback;
6135 ctx->ct_validation_callback_arg = arg;
6139 int SSL_ct_is_enabled(const SSL *s)
6141 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6146 return sc->ct_validation_callback != NULL;
6149 int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
6151 return ctx->ct_validation_callback != NULL;
6154 int ssl_validate_ct(SSL_CONNECTION *s)
6157 X509 *cert = s->session != NULL ? s->session->peer : NULL;
6159 SSL_DANE *dane = &s->dane;
6160 CT_POLICY_EVAL_CTX *ctx = NULL;
6161 const STACK_OF(SCT) *scts;
6164 * If no callback is set, the peer is anonymous, or its chain is invalid,
6165 * skip SCT validation - just return success. Applications that continue
6166 * handshakes without certificates, with unverified chains, or pinned leaf
6167 * certificates are outside the scope of the WebPKI and CT.
6169 * The above exclusions notwithstanding the vast majority of peers will
6170 * have rather ordinary certificate chains validated by typical
6171 * applications that perform certificate verification and therefore will
6172 * process SCTs when enabled.
6174 if (s->ct_validation_callback == NULL || cert == NULL ||
6175 s->verify_result != X509_V_OK ||
6176 s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
6180 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
6181 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
6183 if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
6184 switch (dane->mtlsa->usage) {
6185 case DANETLS_USAGE_DANE_TA:
6186 case DANETLS_USAGE_DANE_EE:
6191 ctx = CT_POLICY_EVAL_CTX_new_ex(SSL_CONNECTION_GET_CTX(s)->libctx,
6192 SSL_CONNECTION_GET_CTX(s)->propq);
6194 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CT_LIB);
6198 issuer = sk_X509_value(s->verified_chain, 1);
6199 CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
6200 CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
6201 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx,
6202 SSL_CONNECTION_GET_CTX(s)->ctlog_store);
6203 CT_POLICY_EVAL_CTX_set_time(
6204 ctx, (uint64_t)SSL_SESSION_get_time(s->session) * 1000);
6206 scts = SSL_get0_peer_scts(SSL_CONNECTION_GET_SSL(s));
6209 * This function returns success (> 0) only when all the SCTs are valid, 0
6210 * when some are invalid, and < 0 on various internal errors (out of
6211 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
6212 * reason to abort the handshake, that decision is up to the callback.
6213 * Therefore, we error out only in the unexpected case that the return
6214 * value is negative.
6216 * XXX: One might well argue that the return value of this function is an
6217 * unfortunate design choice. Its job is only to determine the validation
6218 * status of each of the provided SCTs. So long as it correctly separates
6219 * the wheat from the chaff it should return success. Failure in this case
6220 * ought to correspond to an inability to carry out its duties.
6222 if (SCT_LIST_validate(scts, ctx) < 0) {
6223 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_SCT_VERIFICATION_FAILED);
6227 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
6229 ret = 0; /* This function returns 0 on failure */
6231 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_CALLBACK_FAILED);
6234 CT_POLICY_EVAL_CTX_free(ctx);
6236 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
6237 * failure return code here. Also the application may wish the complete
6238 * the handshake, and then disconnect cleanly at a higher layer, after
6239 * checking the verification status of the completed connection.
6241 * We therefore force a certificate verification failure which will be
6242 * visible via SSL_get_verify_result() and cached as part of any resumed
6245 * Note: the permissive callback is for information gathering only, always
6246 * returns success, and does not affect verification status. Only the
6247 * strict callback or a custom application-specified callback can trigger
6248 * connection failure or record a verification error.
6251 s->verify_result = X509_V_ERR_NO_VALID_SCTS;
6255 int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
6257 switch (validation_mode) {
6259 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6261 case SSL_CT_VALIDATION_PERMISSIVE:
6262 return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
6263 case SSL_CT_VALIDATION_STRICT:
6264 return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
6268 int SSL_enable_ct(SSL *s, int validation_mode)
6270 switch (validation_mode) {
6272 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6274 case SSL_CT_VALIDATION_PERMISSIVE:
6275 return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
6276 case SSL_CT_VALIDATION_STRICT:
6277 return SSL_set_ct_validation_callback(s, ct_strict, NULL);
6281 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
6283 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
6286 int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
6288 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
6291 void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs)
6293 CTLOG_STORE_free(ctx->ctlog_store);
6294 ctx->ctlog_store = logs;
6297 const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
6299 return ctx->ctlog_store;
6302 #endif /* OPENSSL_NO_CT */
6304 void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
6307 c->client_hello_cb = cb;
6308 c->client_hello_cb_arg = arg;
6311 int SSL_client_hello_isv2(SSL *s)
6313 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6318 if (sc->clienthello == NULL)
6320 return sc->clienthello->isv2;
6323 unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
6325 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6330 if (sc->clienthello == NULL)
6332 return sc->clienthello->legacy_version;
6335 size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out)
6337 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6342 if (sc->clienthello == NULL)
6345 *out = sc->clienthello->random;
6346 return SSL3_RANDOM_SIZE;
6349 size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
6351 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6356 if (sc->clienthello == NULL)
6359 *out = sc->clienthello->session_id;
6360 return sc->clienthello->session_id_len;
6363 size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
6365 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6370 if (sc->clienthello == NULL)
6373 *out = PACKET_data(&sc->clienthello->ciphersuites);
6374 return PACKET_remaining(&sc->clienthello->ciphersuites);
6377 size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
6379 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6384 if (sc->clienthello == NULL)
6387 *out = sc->clienthello->compressions;
6388 return sc->clienthello->compressions_len;
6391 int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
6396 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6401 if (sc->clienthello == NULL || out == NULL || outlen == NULL)
6403 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6404 ext = sc->clienthello->pre_proc_exts + i;
6413 if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL)
6415 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6416 ext = sc->clienthello->pre_proc_exts + i;
6418 if (ext->received_order >= num)
6420 present[ext->received_order] = ext->type;
6427 OPENSSL_free(present);
6431 int SSL_client_hello_get_extension_order(SSL *s, uint16_t *exts, size_t *num_exts)
6435 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6440 if (sc->clienthello == NULL || num_exts == NULL)
6442 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6443 ext = sc->clienthello->pre_proc_exts + i;
6455 if (*num_exts < num)
6457 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6458 ext = sc->clienthello->pre_proc_exts + i;
6460 if (ext->received_order >= num)
6462 exts[ext->received_order] = ext->type;
6469 int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
6474 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6479 if (sc->clienthello == NULL)
6481 for (i = 0; i < sc->clienthello->pre_proc_exts_len; ++i) {
6482 r = sc->clienthello->pre_proc_exts + i;
6483 if (r->present && r->type == type) {
6485 *out = PACKET_data(&r->data);
6487 *outlen = PACKET_remaining(&r->data);
6494 int SSL_free_buffers(SSL *ssl)
6497 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6504 return rl->rrlmethod->free_buffers(rl->rrl)
6505 && rl->wrlmethod->free_buffers(rl->wrl);
6508 int SSL_alloc_buffers(SSL *ssl)
6511 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6518 return rl->rrlmethod->alloc_buffers(rl->rrl)
6519 && rl->wrlmethod->alloc_buffers(rl->wrl);
6522 void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
6524 ctx->keylog_callback = cb;
6527 SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
6529 return ctx->keylog_callback;
6532 static int nss_keylog_int(const char *prefix,
6534 const uint8_t *parameter_1,
6535 size_t parameter_1_len,
6536 const uint8_t *parameter_2,
6537 size_t parameter_2_len)
6540 char *cursor = NULL;
6544 SSL_CTX *sctx = SSL_CONNECTION_GET_CTX(sc);
6546 if (sctx->keylog_callback == NULL)
6550 * Our output buffer will contain the following strings, rendered with
6551 * space characters in between, terminated by a NULL character: first the
6552 * prefix, then the first parameter, then the second parameter. The
6553 * meaning of each parameter depends on the specific key material being
6554 * logged. Note that the first and second parameters are encoded in
6555 * hexadecimal, so we need a buffer that is twice their lengths.
6557 prefix_len = strlen(prefix);
6558 out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
6559 if ((out = cursor = OPENSSL_malloc(out_len)) == NULL)
6562 strcpy(cursor, prefix);
6563 cursor += prefix_len;
6566 for (i = 0; i < parameter_1_len; i++) {
6567 sprintf(cursor, "%02x", parameter_1[i]);
6572 for (i = 0; i < parameter_2_len; i++) {
6573 sprintf(cursor, "%02x", parameter_2[i]);
6578 sctx->keylog_callback(SSL_CONNECTION_GET_SSL(sc), (const char *)out);
6579 OPENSSL_clear_free(out, out_len);
6584 int ssl_log_rsa_client_key_exchange(SSL_CONNECTION *sc,
6585 const uint8_t *encrypted_premaster,
6586 size_t encrypted_premaster_len,
6587 const uint8_t *premaster,
6588 size_t premaster_len)
6590 if (encrypted_premaster_len < 8) {
6591 SSLfatal(sc, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6595 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
6596 return nss_keylog_int("RSA",
6598 encrypted_premaster,
6604 int ssl_log_secret(SSL_CONNECTION *sc,
6606 const uint8_t *secret,
6609 return nss_keylog_int(label,
6611 sc->s3.client_random,
6617 #define SSLV2_CIPHER_LEN 3
6619 int ssl_cache_cipherlist(SSL_CONNECTION *s, PACKET *cipher_suites, int sslv2format)
6623 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6625 if (PACKET_remaining(cipher_suites) == 0) {
6626 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6630 if (PACKET_remaining(cipher_suites) % n != 0) {
6631 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6635 OPENSSL_free(s->s3.tmp.ciphers_raw);
6636 s->s3.tmp.ciphers_raw = NULL;
6637 s->s3.tmp.ciphers_rawlen = 0;
6640 size_t numciphers = PACKET_remaining(cipher_suites) / n;
6641 PACKET sslv2ciphers = *cipher_suites;
6642 unsigned int leadbyte;
6646 * We store the raw ciphers list in SSLv3+ format so we need to do some
6647 * preprocessing to convert the list first. If there are any SSLv2 only
6648 * ciphersuites with a non-zero leading byte then we are going to
6649 * slightly over allocate because we won't store those. But that isn't a
6652 raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
6653 s->s3.tmp.ciphers_raw = raw;
6655 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6658 for (s->s3.tmp.ciphers_rawlen = 0;
6659 PACKET_remaining(&sslv2ciphers) > 0;
6660 raw += TLS_CIPHER_LEN) {
6661 if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
6663 && !PACKET_copy_bytes(&sslv2ciphers, raw,
6666 && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
6667 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_PACKET);
6668 OPENSSL_free(s->s3.tmp.ciphers_raw);
6669 s->s3.tmp.ciphers_raw = NULL;
6670 s->s3.tmp.ciphers_rawlen = 0;
6674 s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN;
6676 } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw,
6677 &s->s3.tmp.ciphers_rawlen)) {
6678 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6684 int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
6685 int isv2format, STACK_OF(SSL_CIPHER) **sk,
6686 STACK_OF(SSL_CIPHER) **scsvs)
6689 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6694 if (!PACKET_buf_init(&pkt, bytes, len))
6696 return ossl_bytes_to_cipher_list(sc, &pkt, sk, scsvs, isv2format, 0);
6699 int ossl_bytes_to_cipher_list(SSL_CONNECTION *s, PACKET *cipher_suites,
6700 STACK_OF(SSL_CIPHER) **skp,
6701 STACK_OF(SSL_CIPHER) **scsvs_out,
6702 int sslv2format, int fatal)
6704 const SSL_CIPHER *c;
6705 STACK_OF(SSL_CIPHER) *sk = NULL;
6706 STACK_OF(SSL_CIPHER) *scsvs = NULL;
6708 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
6709 unsigned char cipher[SSLV2_CIPHER_LEN];
6711 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6713 if (PACKET_remaining(cipher_suites) == 0) {
6715 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6717 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHERS_SPECIFIED);
6721 if (PACKET_remaining(cipher_suites) % n != 0) {
6723 SSLfatal(s, SSL_AD_DECODE_ERROR,
6724 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6726 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6730 sk = sk_SSL_CIPHER_new_null();
6731 scsvs = sk_SSL_CIPHER_new_null();
6732 if (sk == NULL || scsvs == NULL) {
6734 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6736 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6740 while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
6742 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
6743 * first byte set to zero, while true SSLv2 ciphers have a non-zero
6744 * first byte. We don't support any true SSLv2 ciphers, so skip them.
6746 if (sslv2format && cipher[0] != '\0')
6749 /* For SSLv2-compat, ignore leading 0-byte. */
6750 c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
6752 if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
6753 (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
6755 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6757 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6762 if (PACKET_remaining(cipher_suites) > 0) {
6764 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_LENGTH);
6766 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
6773 sk_SSL_CIPHER_free(sk);
6774 if (scsvs_out != NULL)
6777 sk_SSL_CIPHER_free(scsvs);
6780 sk_SSL_CIPHER_free(sk);
6781 sk_SSL_CIPHER_free(scsvs);
6785 int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
6787 ctx->max_early_data = max_early_data;
6792 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
6794 return ctx->max_early_data;
6797 int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
6799 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6804 sc->max_early_data = max_early_data;
6809 uint32_t SSL_get_max_early_data(const SSL *s)
6811 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6816 return sc->max_early_data;
6819 int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
6821 ctx->recv_max_early_data = recv_max_early_data;
6826 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
6828 return ctx->recv_max_early_data;
6831 int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
6833 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6838 sc->recv_max_early_data = recv_max_early_data;
6843 uint32_t SSL_get_recv_max_early_data(const SSL *s)
6845 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6850 return sc->recv_max_early_data;
6853 __owur unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION *sc)
6855 /* Return any active Max Fragment Len extension */
6856 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session))
6857 return GET_MAX_FRAGMENT_LENGTH(sc->session);
6859 /* return current SSL connection setting */
6860 return sc->max_send_fragment;
6863 __owur unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION *sc)
6865 /* Return a value regarding an active Max Fragment Len extension */
6866 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session)
6867 && sc->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(sc->session))
6868 return GET_MAX_FRAGMENT_LENGTH(sc->session);
6870 /* else limit |split_send_fragment| to current |max_send_fragment| */
6871 if (sc->split_send_fragment > sc->max_send_fragment)
6872 return sc->max_send_fragment;
6874 /* return current SSL connection setting */
6875 return sc->split_send_fragment;
6878 int SSL_stateless(SSL *s)
6881 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6883 /* TODO(QUIC): This will need further work. */
6887 /* Ensure there is no state left over from a previous invocation */
6893 sc->s3.flags |= TLS1_FLAGS_STATELESS;
6894 ret = SSL_accept(s);
6895 sc->s3.flags &= ~TLS1_FLAGS_STATELESS;
6897 if (ret > 0 && sc->ext.cookieok)
6900 if (sc->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(sc))
6906 void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
6908 ctx->pha_enabled = val;
6911 void SSL_set_post_handshake_auth(SSL *ssl, int val)
6913 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6918 sc->pha_enabled = val;
6921 int SSL_verify_client_post_handshake(SSL *ssl)
6923 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6928 if (!SSL_CONNECTION_IS_TLS13(sc)) {
6929 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
6933 ERR_raise(ERR_LIB_SSL, SSL_R_NOT_SERVER);
6937 if (!SSL_is_init_finished(ssl)) {
6938 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
6942 switch (sc->post_handshake_auth) {
6944 ERR_raise(ERR_LIB_SSL, SSL_R_EXTENSION_NOT_RECEIVED);
6947 case SSL_PHA_EXT_SENT:
6948 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
6950 case SSL_PHA_EXT_RECEIVED:
6952 case SSL_PHA_REQUEST_PENDING:
6953 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_PENDING);
6955 case SSL_PHA_REQUESTED:
6956 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_SENT);
6960 sc->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
6962 /* checks verify_mode and algorithm_auth */
6963 if (!send_certificate_request(sc)) {
6964 sc->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
6965 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CONFIG);
6969 ossl_statem_set_in_init(sc, 1);
6973 int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
6974 SSL_CTX_generate_session_ticket_fn gen_cb,
6975 SSL_CTX_decrypt_session_ticket_fn dec_cb,
6978 ctx->generate_ticket_cb = gen_cb;
6979 ctx->decrypt_ticket_cb = dec_cb;
6980 ctx->ticket_cb_data = arg;
6984 void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
6985 SSL_allow_early_data_cb_fn cb,
6988 ctx->allow_early_data_cb = cb;
6989 ctx->allow_early_data_cb_data = arg;
6992 void SSL_set_allow_early_data_cb(SSL *s,
6993 SSL_allow_early_data_cb_fn cb,
6996 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7001 sc->allow_early_data_cb = cb;
7002 sc->allow_early_data_cb_data = arg;
7005 const EVP_CIPHER *ssl_evp_cipher_fetch(OSSL_LIB_CTX *libctx,
7007 const char *properties)
7009 const EVP_CIPHER *ciph;
7011 ciph = tls_get_cipher_from_engine(nid);
7016 * If there is no engine cipher then we do an explicit fetch. This may fail
7017 * and that could be ok
7020 ciph = EVP_CIPHER_fetch(libctx, OBJ_nid2sn(nid), properties);
7026 int ssl_evp_cipher_up_ref(const EVP_CIPHER *cipher)
7028 /* Don't up-ref an implicit EVP_CIPHER */
7029 if (EVP_CIPHER_get0_provider(cipher) == NULL)
7033 * The cipher was explicitly fetched and therefore it is safe to cast
7036 return EVP_CIPHER_up_ref((EVP_CIPHER *)cipher);
7039 void ssl_evp_cipher_free(const EVP_CIPHER *cipher)
7044 if (EVP_CIPHER_get0_provider(cipher) != NULL) {
7046 * The cipher was explicitly fetched and therefore it is safe to cast
7049 EVP_CIPHER_free((EVP_CIPHER *)cipher);
7053 const EVP_MD *ssl_evp_md_fetch(OSSL_LIB_CTX *libctx,
7055 const char *properties)
7059 md = tls_get_digest_from_engine(nid);
7063 /* Otherwise we do an explicit fetch */
7065 md = EVP_MD_fetch(libctx, OBJ_nid2sn(nid), properties);
7070 int ssl_evp_md_up_ref(const EVP_MD *md)
7072 /* Don't up-ref an implicit EVP_MD */
7073 if (EVP_MD_get0_provider(md) == NULL)
7077 * The digest was explicitly fetched and therefore it is safe to cast
7080 return EVP_MD_up_ref((EVP_MD *)md);
7083 void ssl_evp_md_free(const EVP_MD *md)
7088 if (EVP_MD_get0_provider(md) != NULL) {
7090 * The digest was explicitly fetched and therefore it is safe to cast
7093 EVP_MD_free((EVP_MD *)md);
7097 int SSL_set0_tmp_dh_pkey(SSL *s, EVP_PKEY *dhpkey)
7099 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7104 if (!ssl_security(sc, SSL_SECOP_TMP_DH,
7105 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
7106 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
7109 EVP_PKEY_free(sc->cert->dh_tmp);
7110 sc->cert->dh_tmp = dhpkey;
7114 int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX *ctx, EVP_PKEY *dhpkey)
7116 if (!ssl_ctx_security(ctx, SSL_SECOP_TMP_DH,
7117 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
7118 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
7121 EVP_PKEY_free(ctx->cert->dh_tmp);
7122 ctx->cert->dh_tmp = dhpkey;
7126 /* QUIC-specific methods which are supported on QUIC connections only. */
7127 int SSL_tick(SSL *s)
7131 #ifndef OPENSSL_NO_QUIC
7133 return ossl_quic_tick(s);
7136 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7137 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc))
7139 * DTLSv1_handle_timeout returns 0 if the timer wasn't expired yet,
7140 * which we consider a success case. Theoretically DTLSv1_handle_timeout
7141 * can also return 0 if s is NULL or not a DTLS object, but we've
7142 * already ruled out those possibilities above, so this is not possible
7143 * here. Thus the only failure cases are where DTLSv1_handle_timeout
7146 return DTLSv1_handle_timeout(s) >= 0;
7151 int SSL_get_tick_timeout(SSL *s, struct timeval *tv)
7155 #ifndef OPENSSL_NO_QUIC
7157 return ossl_quic_get_tick_timeout(s, tv);
7160 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7161 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc)
7162 && DTLSv1_get_timeout(s, tv))
7170 int SSL_get_rpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7172 #ifndef OPENSSL_NO_QUIC
7176 return ossl_quic_get_rpoll_descriptor(s, desc);
7182 int SSL_get_wpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7184 #ifndef OPENSSL_NO_QUIC
7188 return ossl_quic_get_wpoll_descriptor(s, desc);
7194 int SSL_net_read_desired(SSL *s)
7196 #ifndef OPENSSL_NO_QUIC
7200 return ossl_quic_get_net_read_desired(s);
7206 int SSL_net_write_desired(SSL *s)
7208 #ifndef OPENSSL_NO_QUIC
7212 return ossl_quic_get_net_write_desired(s);
7218 int SSL_set_blocking_mode(SSL *s, int blocking)
7220 #ifndef OPENSSL_NO_QUIC
7224 return ossl_quic_conn_set_blocking_mode(s, blocking);
7230 int SSL_get_blocking_mode(SSL *s)
7232 #ifndef OPENSSL_NO_QUIC
7236 return ossl_quic_conn_get_blocking_mode(s);
7242 int SSL_set_initial_peer_addr(SSL *s, const BIO_ADDR *peer_addr)
7244 #ifndef OPENSSL_NO_QUIC
7248 return ossl_quic_conn_set_initial_peer_addr(s, peer_addr);
7254 int SSL_shutdown_ex(SSL *ssl, uint64_t flags,
7255 const SSL_SHUTDOWN_EX_ARGS *args,
7258 #ifndef OPENSSL_NO_QUIC
7260 return SSL_shutdown(ssl);
7262 return ossl_quic_conn_shutdown(ssl, flags, args, args_len);
7264 return SSL_shutdown(ssl);
7268 int SSL_stream_conclude(SSL *ssl, uint64_t flags)
7270 #ifndef OPENSSL_NO_QUIC
7274 return ossl_quic_conn_stream_conclude(ssl);
7280 SSL *SSL_new_stream(SSL *s, uint64_t flags)
7282 #ifndef OPENSSL_NO_QUIC
7286 return ossl_quic_conn_stream_new(s, flags);
7292 SSL *SSL_get0_connection(SSL *s)
7294 #ifndef OPENSSL_NO_QUIC
7298 return ossl_quic_get0_connection(s);
7304 int SSL_is_connection(SSL *s)
7306 return SSL_get0_connection(s) == s;
7309 int SSL_get_stream_type(SSL *s)
7311 #ifndef OPENSSL_NO_QUIC
7313 return SSL_STREAM_TYPE_BIDI;
7315 return ossl_quic_get_stream_type(s);
7317 return SSL_STREAM_TYPE_BIDI;
7321 uint64_t SSL_get_stream_id(SSL *s)
7323 #ifndef OPENSSL_NO_QUIC
7327 return ossl_quic_get_stream_id(s);
7333 int SSL_set_default_stream_mode(SSL *s, uint32_t mode)
7335 #ifndef OPENSSL_NO_QUIC
7339 return ossl_quic_set_default_stream_mode(s, mode);
7345 int SSL_set_incoming_stream_policy(SSL *s, int policy, uint64_t aec)
7347 #ifndef OPENSSL_NO_QUIC
7351 return ossl_quic_set_incoming_stream_policy(s, policy, aec);
7357 SSL *SSL_accept_stream(SSL *s, uint64_t flags)
7359 #ifndef OPENSSL_NO_QUIC
7363 return ossl_quic_accept_stream(s, flags);
7369 size_t SSL_get_accept_stream_queue_len(SSL *s)
7371 #ifndef OPENSSL_NO_QUIC
7375 return ossl_quic_get_accept_stream_queue_len(s);
7381 int SSL_stream_reset(SSL *s,
7382 const SSL_STREAM_RESET_ARGS *args,
7385 #ifndef OPENSSL_NO_QUIC
7389 return ossl_quic_stream_reset(s, args, args_len);
7395 int SSL_get_stream_read_state(SSL *s)
7397 #ifndef OPENSSL_NO_QUIC
7399 return SSL_STREAM_STATE_NONE;
7401 return ossl_quic_get_stream_read_state(s);
7403 return SSL_STREAM_STATE_NONE;
7407 int SSL_get_stream_write_state(SSL *s)
7409 #ifndef OPENSSL_NO_QUIC
7411 return SSL_STREAM_STATE_NONE;
7413 return ossl_quic_get_stream_write_state(s);
7415 return SSL_STREAM_STATE_NONE;
7419 int SSL_get_stream_read_error_code(SSL *s, uint64_t *app_error_code)
7421 #ifndef OPENSSL_NO_QUIC
7425 return ossl_quic_get_stream_read_error_code(s, app_error_code);
7431 int SSL_get_stream_write_error_code(SSL *s, uint64_t *app_error_code)
7433 #ifndef OPENSSL_NO_QUIC
7437 return ossl_quic_get_stream_write_error_code(s, app_error_code);
7443 int SSL_get_conn_close_info(SSL *s, SSL_CONN_CLOSE_INFO *info,
7446 #ifndef OPENSSL_NO_QUIC
7450 return ossl_quic_get_conn_close_info(s, info, info_len);
7456 int SSL_add_expected_rpk(SSL *s, EVP_PKEY *rpk)
7458 unsigned char *data = NULL;
7459 SSL_DANE *dane = SSL_get0_dane(s);
7462 if (dane == NULL || dane->dctx == NULL)
7464 if ((ret = i2d_PUBKEY(rpk, &data)) <= 0)
7467 ret = SSL_dane_tlsa_add(s, DANETLS_USAGE_DANE_EE,
7468 DANETLS_SELECTOR_SPKI,
7469 DANETLS_MATCHING_FULL,
7470 data, (size_t)ret) > 0;
7475 EVP_PKEY *SSL_get0_peer_rpk(const SSL *s)
7477 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7479 if (sc == NULL || sc->session == NULL)
7481 return sc->session->peer_rpk;
7484 int SSL_get_negotiated_client_cert_type(const SSL *s)
7486 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7491 return sc->ext.client_cert_type;
7494 int SSL_get_negotiated_server_cert_type(const SSL *s)
7496 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7501 return sc->ext.server_cert_type;
7504 static int validate_cert_type(const unsigned char *val, size_t len)
7510 if (val == NULL && len == 0)
7513 if (val == NULL || len == 0)
7516 for (i = 0; i < len; i++) {
7518 case TLSEXT_cert_type_rpk:
7523 case TLSEXT_cert_type_x509:
7528 case TLSEXT_cert_type_pgp:
7529 case TLSEXT_cert_type_1609dot2:
7537 static int set_cert_type(unsigned char **cert_type,
7538 size_t *cert_type_len,
7539 const unsigned char *val,
7542 unsigned char *tmp = NULL;
7544 if (!validate_cert_type(val, len))
7547 if (val != NULL && (tmp = OPENSSL_memdup(val, len)) == NULL)
7550 OPENSSL_free(*cert_type);
7552 *cert_type_len = len;
7556 int SSL_set1_client_cert_type(SSL *s, const unsigned char *val, size_t len)
7558 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7560 return set_cert_type(&sc->client_cert_type, &sc->client_cert_type_len,
7564 int SSL_set1_server_cert_type(SSL *s, const unsigned char *val, size_t len)
7566 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7568 return set_cert_type(&sc->server_cert_type, &sc->server_cert_type_len,
7572 int SSL_CTX_set1_client_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7574 return set_cert_type(&ctx->client_cert_type, &ctx->client_cert_type_len,
7578 int SSL_CTX_set1_server_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7580 return set_cert_type(&ctx->server_cert_type, &ctx->server_cert_type_len,
7584 int SSL_get0_client_cert_type(const SSL *s, unsigned char **t, size_t *len)
7586 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7588 if (t == NULL || len == NULL)
7591 *t = sc->client_cert_type;
7592 *len = sc->client_cert_type_len;
7596 int SSL_get0_server_cert_type(const SSL *s, unsigned char **t, size_t *len)
7598 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7600 if (t == NULL || len == NULL)
7603 *t = sc->server_cert_type;
7604 *len = sc->server_cert_type_len;
7608 int SSL_CTX_get0_client_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7610 if (t == NULL || len == NULL)
7613 *t = ctx->client_cert_type;
7614 *len = ctx->client_cert_type_len;
7618 int SSL_CTX_get0_server_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7620 if (t == NULL || len == NULL)
7623 *t = ctx->server_cert_type;
7624 *len = ctx->server_cert_type_len;