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)
710 ssl->lock = CRYPTO_THREAD_lock_new();
711 if (ssl->lock == NULL)
714 if (!CRYPTO_NEW_REF(&ssl->references, 1)) {
715 CRYPTO_THREAD_lock_free(ssl->lock);
719 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, ssl, &ssl->ex_data)) {
720 CRYPTO_THREAD_lock_free(ssl->lock);
721 CRYPTO_FREE_REF(&ssl->references);
729 ssl->defltmeth = ssl->method = method;
734 SSL *ossl_ssl_connection_new_int(SSL_CTX *ctx, const SSL_METHOD *method)
739 s = OPENSSL_zalloc(sizeof(*s));
744 if (!ossl_ssl_init(ssl, ctx, method, SSL_TYPE_SSL_CONNECTION)) {
751 RECORD_LAYER_init(&s->rlayer, s);
753 s->options = ctx->options;
754 s->dane.flags = ctx->dane.flags;
755 if (method->version == ctx->method->version) {
756 s->min_proto_version = ctx->min_proto_version;
757 s->max_proto_version = ctx->max_proto_version;
760 s->max_cert_list = ctx->max_cert_list;
761 s->max_early_data = ctx->max_early_data;
762 s->recv_max_early_data = ctx->recv_max_early_data;
763 s->num_tickets = ctx->num_tickets;
764 s->pha_enabled = ctx->pha_enabled;
766 /* Shallow copy of the ciphersuites stack */
767 s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
768 if (s->tls13_ciphersuites == NULL)
772 * Earlier library versions used to copy the pointer to the CERT, not
773 * its contents; only when setting new parameters for the per-SSL
774 * copy, ssl_cert_new would be called (and the direct reference to
775 * the per-SSL_CTX settings would be lost, but those still were
776 * indirectly accessed for various purposes, and for that reason they
777 * used to be known as s->ctx->default_cert). Now we don't look at the
778 * SSL_CTX's CERT after having duplicated it once.
780 s->cert = ssl_cert_dup(ctx->cert);
784 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
785 s->msg_callback = ctx->msg_callback;
786 s->msg_callback_arg = ctx->msg_callback_arg;
787 s->verify_mode = ctx->verify_mode;
788 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
789 s->rlayer.record_padding_cb = ctx->record_padding_cb;
790 s->rlayer.record_padding_arg = ctx->record_padding_arg;
791 s->rlayer.block_padding = ctx->block_padding;
792 s->sid_ctx_length = ctx->sid_ctx_length;
793 if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
795 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
796 s->verify_callback = ctx->default_verify_callback;
797 s->generate_session_id = ctx->generate_session_id;
799 s->param = X509_VERIFY_PARAM_new();
800 if (s->param == NULL)
802 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
803 s->quiet_shutdown = ctx->quiet_shutdown;
805 s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
806 s->max_send_fragment = ctx->max_send_fragment;
807 s->split_send_fragment = ctx->split_send_fragment;
808 s->max_pipelines = ctx->max_pipelines;
809 s->rlayer.default_read_buf_len = ctx->default_read_buf_len;
812 s->ext.debug_arg = NULL;
813 s->ext.ticket_expected = 0;
814 s->ext.status_type = ctx->ext.status_type;
815 s->ext.status_expected = 0;
816 s->ext.ocsp.ids = NULL;
817 s->ext.ocsp.exts = NULL;
818 s->ext.ocsp.resp = NULL;
819 s->ext.ocsp.resp_len = 0;
821 s->session_ctx = ctx;
822 if (ctx->ext.ecpointformats) {
823 s->ext.ecpointformats =
824 OPENSSL_memdup(ctx->ext.ecpointformats,
825 ctx->ext.ecpointformats_len);
826 if (!s->ext.ecpointformats) {
827 s->ext.ecpointformats_len = 0;
830 s->ext.ecpointformats_len =
831 ctx->ext.ecpointformats_len;
833 if (ctx->ext.supportedgroups) {
834 s->ext.supportedgroups =
835 OPENSSL_memdup(ctx->ext.supportedgroups,
836 ctx->ext.supportedgroups_len
837 * sizeof(*ctx->ext.supportedgroups));
838 if (!s->ext.supportedgroups) {
839 s->ext.supportedgroups_len = 0;
842 s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
845 #ifndef OPENSSL_NO_NEXTPROTONEG
849 if (ctx->ext.alpn != NULL) {
850 s->ext.alpn = OPENSSL_malloc(ctx->ext.alpn_len);
851 if (s->ext.alpn == NULL) {
855 memcpy(s->ext.alpn, ctx->ext.alpn, ctx->ext.alpn_len);
856 s->ext.alpn_len = ctx->ext.alpn_len;
859 s->verified_chain = NULL;
860 s->verify_result = X509_V_OK;
862 s->default_passwd_callback = ctx->default_passwd_callback;
863 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
865 s->key_update = SSL_KEY_UPDATE_NONE;
867 s->allow_early_data_cb = ctx->allow_early_data_cb;
868 s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
870 if (!method->ssl_init(ssl))
873 s->server = (method->ssl_accept == ssl_undefined_function) ? 0 : 1;
875 if (!method->ssl_reset(ssl))
878 #ifndef OPENSSL_NO_PSK
879 s->psk_client_callback = ctx->psk_client_callback;
880 s->psk_server_callback = ctx->psk_server_callback;
882 s->psk_find_session_cb = ctx->psk_find_session_cb;
883 s->psk_use_session_cb = ctx->psk_use_session_cb;
885 s->async_cb = ctx->async_cb;
886 s->async_cb_arg = ctx->async_cb_arg;
890 #ifndef OPENSSL_NO_COMP_ALG
891 memcpy(s->cert_comp_prefs, ctx->cert_comp_prefs, sizeof(s->cert_comp_prefs));
893 if (ctx->client_cert_type != NULL) {
894 s->client_cert_type = OPENSSL_memdup(ctx->client_cert_type,
895 ctx->client_cert_type_len);
896 if (s->client_cert_type == NULL)
898 s->client_cert_type_len = ctx->client_cert_type_len;
900 if (ctx->server_cert_type != NULL) {
901 s->server_cert_type = OPENSSL_memdup(ctx->server_cert_type,
902 ctx->server_cert_type_len);
903 if (s->server_cert_type == NULL)
905 s->server_cert_type_len = ctx->server_cert_type_len;
908 #ifndef OPENSSL_NO_CT
909 if (!SSL_set_ct_validation_callback(ssl, ctx->ct_validation_callback,
910 ctx->ct_validation_callback_arg))
914 s->ssl_pkey_num = SSL_PKEY_NUM + ctx->sigalg_list_len;
917 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
920 ERR_raise(ERR_LIB_SSL, ERR_R_ASN1_LIB);
923 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
929 SSL *ossl_ssl_connection_new(SSL_CTX *ctx)
931 return ossl_ssl_connection_new_int(ctx, ctx->method);
934 int SSL_is_dtls(const SSL *s)
936 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
938 #ifndef OPENSSL_NO_QUIC
939 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
946 return SSL_CONNECTION_IS_DTLS(sc) ? 1 : 0;
949 int SSL_is_tls(const SSL *s)
951 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
953 #ifndef OPENSSL_NO_QUIC
954 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
961 return SSL_CONNECTION_IS_DTLS(sc) ? 0 : 1;
964 int SSL_is_quic(const SSL *s)
966 #ifndef OPENSSL_NO_QUIC
967 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
973 int SSL_up_ref(SSL *s)
977 if (CRYPTO_UP_REF(&s->references, &i) <= 0)
980 REF_PRINT_COUNT("SSL", s);
981 REF_ASSERT_ISNT(i < 2);
982 return ((i > 1) ? 1 : 0);
985 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
986 unsigned int sid_ctx_len)
988 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
989 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
992 ctx->sid_ctx_length = sid_ctx_len;
993 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
998 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
999 unsigned int sid_ctx_len)
1001 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1006 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
1007 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
1010 sc->sid_ctx_length = sid_ctx_len;
1011 memcpy(sc->sid_ctx, sid_ctx, sid_ctx_len);
1016 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
1018 if (!CRYPTO_THREAD_write_lock(ctx->lock))
1020 ctx->generate_session_id = cb;
1021 CRYPTO_THREAD_unlock(ctx->lock);
1025 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
1027 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1029 if (sc == NULL || !CRYPTO_THREAD_write_lock(ssl->lock))
1031 sc->generate_session_id = cb;
1032 CRYPTO_THREAD_unlock(ssl->lock);
1036 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
1037 unsigned int id_len)
1040 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
1041 * we can "construct" a session to give us the desired check - i.e. to
1042 * find if there's a session in the hash table that would conflict with
1043 * any new session built out of this id/id_len and the ssl_version in use
1047 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
1049 if (sc == NULL || id_len > sizeof(r.session_id))
1052 r.ssl_version = sc->version;
1053 r.session_id_length = id_len;
1054 memcpy(r.session_id, id, id_len);
1056 if (!CRYPTO_THREAD_read_lock(sc->session_ctx->lock))
1058 p = lh_SSL_SESSION_retrieve(sc->session_ctx->sessions, &r);
1059 CRYPTO_THREAD_unlock(sc->session_ctx->lock);
1063 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
1065 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
1068 int SSL_set_purpose(SSL *s, int purpose)
1070 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1075 return X509_VERIFY_PARAM_set_purpose(sc->param, purpose);
1078 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
1080 return X509_VERIFY_PARAM_set_trust(s->param, trust);
1083 int SSL_set_trust(SSL *s, int trust)
1085 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1090 return X509_VERIFY_PARAM_set_trust(sc->param, trust);
1093 int SSL_set1_host(SSL *s, const char *hostname)
1095 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1100 /* If a hostname is provided and parses as an IP address,
1101 * treat it as such. */
1102 if (hostname != NULL
1103 && X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname) == 1)
1106 return X509_VERIFY_PARAM_set1_host(sc->param, hostname, 0);
1109 int SSL_add1_host(SSL *s, const char *hostname)
1111 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1116 /* If a hostname is provided and parses as an IP address,
1117 * treat it as such. */
1120 ASN1_OCTET_STRING *ip;
1123 ip = a2i_IPADDRESS(hostname);
1125 /* We didn't want it; only to check if it *is* an IP address */
1126 ASN1_OCTET_STRING_free(ip);
1128 old_ip = X509_VERIFY_PARAM_get1_ip_asc(sc->param);
1131 OPENSSL_free(old_ip);
1132 /* There can be only one IP address */
1136 return X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname);
1140 return X509_VERIFY_PARAM_add1_host(sc->param, hostname, 0);
1143 void SSL_set_hostflags(SSL *s, unsigned int flags)
1145 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1150 X509_VERIFY_PARAM_set_hostflags(sc->param, flags);
1153 const char *SSL_get0_peername(SSL *s)
1155 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1160 return X509_VERIFY_PARAM_get0_peername(sc->param);
1163 int SSL_CTX_dane_enable(SSL_CTX *ctx)
1165 return dane_ctx_enable(&ctx->dane);
1168 unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
1170 unsigned long orig = ctx->dane.flags;
1172 ctx->dane.flags |= flags;
1176 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
1178 unsigned long orig = ctx->dane.flags;
1180 ctx->dane.flags &= ~flags;
1184 int SSL_dane_enable(SSL *s, const char *basedomain)
1187 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1193 if (s->ctx->dane.mdmax == 0) {
1194 ERR_raise(ERR_LIB_SSL, SSL_R_CONTEXT_NOT_DANE_ENABLED);
1197 if (dane->trecs != NULL) {
1198 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_ALREADY_ENABLED);
1203 * Default SNI name. This rejects empty names, while set1_host below
1204 * accepts them and disables hostname checks. To avoid side-effects with
1205 * invalid input, set the SNI name first.
1207 if (sc->ext.hostname == NULL) {
1208 if (!SSL_set_tlsext_host_name(s, basedomain)) {
1209 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1214 /* Primary RFC6125 reference identifier */
1215 if (!X509_VERIFY_PARAM_set1_host(sc->param, basedomain, 0)) {
1216 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1222 dane->dctx = &s->ctx->dane;
1223 dane->trecs = sk_danetls_record_new_null();
1225 if (dane->trecs == NULL) {
1226 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
1232 unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
1235 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1240 orig = sc->dane.flags;
1242 sc->dane.flags |= flags;
1246 unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
1249 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1254 orig = sc->dane.flags;
1256 sc->dane.flags &= ~flags;
1260 int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
1263 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1270 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1274 *mcert = dane->mcert;
1276 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
1281 int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
1282 uint8_t *mtype, const unsigned char **data, size_t *dlen)
1285 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1292 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1296 *usage = dane->mtlsa->usage;
1298 *selector = dane->mtlsa->selector;
1300 *mtype = dane->mtlsa->mtype;
1302 *data = dane->mtlsa->data;
1304 *dlen = dane->mtlsa->dlen;
1309 SSL_DANE *SSL_get0_dane(SSL *s)
1311 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1319 int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
1320 uint8_t mtype, const unsigned char *data, size_t dlen)
1322 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1327 return dane_tlsa_add(&sc->dane, usage, selector, mtype, data, dlen);
1330 int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
1333 return dane_mtype_set(&ctx->dane, md, mtype, ord);
1336 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
1338 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
1341 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
1343 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1348 return X509_VERIFY_PARAM_set1(sc->param, vpm);
1351 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
1356 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
1358 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1366 void SSL_certs_clear(SSL *s)
1368 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1373 ssl_cert_clear_certs(sc->cert);
1376 void SSL_free(SSL *s)
1382 CRYPTO_DOWN_REF(&s->references, &i);
1383 REF_PRINT_COUNT("SSL", s);
1386 REF_ASSERT_ISNT(i < 0);
1388 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1390 if (s->method != NULL)
1391 s->method->ssl_free(s);
1393 SSL_CTX_free(s->ctx);
1394 CRYPTO_THREAD_lock_free(s->lock);
1395 CRYPTO_FREE_REF(&s->references);
1400 void ossl_ssl_connection_free(SSL *ssl)
1404 s = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
1408 X509_VERIFY_PARAM_free(s->param);
1409 dane_final(&s->dane);
1411 /* Ignore return value */
1412 ssl_free_wbio_buffer(s);
1414 RECORD_LAYER_clear(&s->rlayer);
1416 BUF_MEM_free(s->init_buf);
1418 /* add extra stuff */
1419 sk_SSL_CIPHER_free(s->cipher_list);
1420 sk_SSL_CIPHER_free(s->cipher_list_by_id);
1421 sk_SSL_CIPHER_free(s->tls13_ciphersuites);
1422 sk_SSL_CIPHER_free(s->peer_ciphers);
1424 /* Make the next call work :-) */
1425 if (s->session != NULL) {
1426 ssl_clear_bad_session(s);
1427 SSL_SESSION_free(s->session);
1429 SSL_SESSION_free(s->psksession);
1430 OPENSSL_free(s->psksession_id);
1432 ssl_cert_free(s->cert);
1433 OPENSSL_free(s->shared_sigalgs);
1434 /* Free up if allocated */
1436 OPENSSL_free(s->ext.hostname);
1437 SSL_CTX_free(s->session_ctx);
1438 OPENSSL_free(s->ext.ecpointformats);
1439 OPENSSL_free(s->ext.peer_ecpointformats);
1440 OPENSSL_free(s->ext.supportedgroups);
1441 OPENSSL_free(s->ext.peer_supportedgroups);
1442 sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
1443 #ifndef OPENSSL_NO_OCSP
1444 sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
1446 #ifndef OPENSSL_NO_CT
1447 SCT_LIST_free(s->scts);
1448 OPENSSL_free(s->ext.scts);
1450 OPENSSL_free(s->ext.ocsp.resp);
1451 OPENSSL_free(s->ext.alpn);
1452 OPENSSL_free(s->ext.tls13_cookie);
1453 if (s->clienthello != NULL)
1454 OPENSSL_free(s->clienthello->pre_proc_exts);
1455 OPENSSL_free(s->clienthello);
1456 OPENSSL_free(s->pha_context);
1457 EVP_MD_CTX_free(s->pha_dgst);
1459 sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
1460 sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
1462 OPENSSL_free(s->client_cert_type);
1463 OPENSSL_free(s->server_cert_type);
1465 OSSL_STACK_OF_X509_free(s->verified_chain);
1467 if (ssl->method != NULL)
1468 ssl->method->ssl_deinit(ssl);
1470 ASYNC_WAIT_CTX_free(s->waitctx);
1472 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1473 OPENSSL_free(s->ext.npn);
1476 #ifndef OPENSSL_NO_SRTP
1477 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
1481 * We do this late. We want to ensure that any other references we held to
1482 * these BIOs are freed first *before* we call BIO_free_all(), because
1483 * BIO_free_all() will only free each BIO in the chain if the number of
1484 * references to the first BIO have dropped to 0
1486 BIO_free_all(s->wbio);
1488 BIO_free_all(s->rbio);
1490 OPENSSL_free(s->s3.tmp.valid_flags);
1493 void SSL_set0_rbio(SSL *s, BIO *rbio)
1495 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1497 #ifndef OPENSSL_NO_QUIC
1499 ossl_quic_conn_set0_net_rbio(s, rbio);
1507 BIO_free_all(sc->rbio);
1509 sc->rlayer.rrlmethod->set1_bio(sc->rlayer.rrl, sc->rbio);
1512 void SSL_set0_wbio(SSL *s, BIO *wbio)
1514 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1516 #ifndef OPENSSL_NO_QUIC
1518 ossl_quic_conn_set0_net_wbio(s, wbio);
1527 * If the output buffering BIO is still in place, remove it
1529 if (sc->bbio != NULL)
1530 sc->wbio = BIO_pop(sc->wbio);
1532 BIO_free_all(sc->wbio);
1535 /* Re-attach |bbio| to the new |wbio|. */
1536 if (sc->bbio != NULL)
1537 sc->wbio = BIO_push(sc->bbio, sc->wbio);
1539 sc->rlayer.wrlmethod->set1_bio(sc->rlayer.wrl, sc->wbio);
1542 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1545 * For historical reasons, this function has many different cases in
1546 * ownership handling.
1549 /* If nothing has changed, do nothing */
1550 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1554 * If the two arguments are equal then one fewer reference is granted by the
1555 * caller than we want to take
1557 if (rbio != NULL && rbio == wbio)
1561 * If only the wbio is changed only adopt one reference.
1563 if (rbio == SSL_get_rbio(s)) {
1564 SSL_set0_wbio(s, wbio);
1568 * There is an asymmetry here for historical reasons. If only the rbio is
1569 * changed AND the rbio and wbio were originally different, then we only
1570 * adopt one reference.
1572 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1573 SSL_set0_rbio(s, rbio);
1577 /* Otherwise, adopt both references. */
1578 SSL_set0_rbio(s, rbio);
1579 SSL_set0_wbio(s, wbio);
1582 BIO *SSL_get_rbio(const SSL *s)
1584 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1586 #ifndef OPENSSL_NO_QUIC
1588 return ossl_quic_conn_get_net_rbio(s);
1597 BIO *SSL_get_wbio(const SSL *s)
1599 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1601 #ifndef OPENSSL_NO_QUIC
1603 return ossl_quic_conn_get_net_wbio(s);
1609 if (sc->bbio != NULL) {
1611 * If |bbio| is active, the true caller-configured BIO is its
1614 return BIO_next(sc->bbio);
1619 int SSL_get_fd(const SSL *s)
1621 return SSL_get_rfd(s);
1624 int SSL_get_rfd(const SSL *s)
1629 b = SSL_get_rbio(s);
1630 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1632 BIO_get_fd(r, &ret);
1636 int SSL_get_wfd(const SSL *s)
1641 b = SSL_get_wbio(s);
1642 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1644 BIO_get_fd(r, &ret);
1648 #ifndef OPENSSL_NO_SOCK
1649 int SSL_set_fd(SSL *s, int fd)
1654 bio = BIO_new(BIO_s_socket());
1657 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1660 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1661 SSL_set_bio(s, bio, bio);
1662 #ifndef OPENSSL_NO_KTLS
1664 * The new socket is created successfully regardless of ktls_enable.
1665 * ktls_enable doesn't change any functionality of the socket, except
1666 * changing the setsockopt to enable the processing of ktls_start.
1667 * Thus, it is not a problem to call it for non-TLS sockets.
1670 #endif /* OPENSSL_NO_KTLS */
1676 int SSL_set_wfd(SSL *s, int fd)
1678 BIO *rbio = SSL_get_rbio(s);
1680 if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET
1681 || (int)BIO_get_fd(rbio, NULL) != fd) {
1682 BIO *bio = BIO_new(BIO_s_socket());
1685 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1688 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1689 SSL_set0_wbio(s, bio);
1690 #ifndef OPENSSL_NO_KTLS
1692 * The new socket is created successfully regardless of ktls_enable.
1693 * ktls_enable doesn't change any functionality of the socket, except
1694 * changing the setsockopt to enable the processing of ktls_start.
1695 * Thus, it is not a problem to call it for non-TLS sockets.
1698 #endif /* OPENSSL_NO_KTLS */
1701 SSL_set0_wbio(s, rbio);
1706 int SSL_set_rfd(SSL *s, int fd)
1708 BIO *wbio = SSL_get_wbio(s);
1710 if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET
1711 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
1712 BIO *bio = BIO_new(BIO_s_socket());
1715 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1718 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1719 SSL_set0_rbio(s, bio);
1722 SSL_set0_rbio(s, wbio);
1729 /* return length of latest Finished message we sent, copy to 'buf' */
1730 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
1733 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1738 ret = sc->s3.tmp.finish_md_len;
1741 memcpy(buf, sc->s3.tmp.finish_md, count);
1745 /* return length of latest Finished message we expected, copy to 'buf' */
1746 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
1749 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1754 ret = sc->s3.tmp.peer_finish_md_len;
1757 memcpy(buf, sc->s3.tmp.peer_finish_md, count);
1761 int SSL_get_verify_mode(const SSL *s)
1763 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1768 return sc->verify_mode;
1771 int SSL_get_verify_depth(const SSL *s)
1773 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1778 return X509_VERIFY_PARAM_get_depth(sc->param);
1781 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
1782 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1787 return sc->verify_callback;
1790 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
1792 return ctx->verify_mode;
1795 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
1797 return X509_VERIFY_PARAM_get_depth(ctx->param);
1800 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
1801 return ctx->default_verify_callback;
1804 void SSL_set_verify(SSL *s, int mode,
1805 int (*callback) (int ok, X509_STORE_CTX *ctx))
1807 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1812 sc->verify_mode = mode;
1813 if (callback != NULL)
1814 sc->verify_callback = callback;
1817 void SSL_set_verify_depth(SSL *s, int depth)
1819 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1824 X509_VERIFY_PARAM_set_depth(sc->param, depth);
1827 void SSL_set_read_ahead(SSL *s, int yes)
1829 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1830 OSSL_PARAM options[2], *opts = options;
1835 RECORD_LAYER_set_read_ahead(&sc->rlayer, yes);
1837 *opts++ = OSSL_PARAM_construct_int(OSSL_LIBSSL_RECORD_LAYER_PARAM_READ_AHEAD,
1838 &sc->rlayer.read_ahead);
1839 *opts = OSSL_PARAM_construct_end();
1841 /* Ignore return value */
1842 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
1845 int SSL_get_read_ahead(const SSL *s)
1847 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1852 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
1855 int SSL_pending(const SSL *s)
1857 size_t pending = s->method->ssl_pending(s);
1860 * SSL_pending cannot work properly if read-ahead is enabled
1861 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1862 * impossible to fix since SSL_pending cannot report errors that may be
1863 * observed while scanning the new data. (Note that SSL_pending() is
1864 * often used as a boolean value, so we'd better not return -1.)
1866 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1867 * we just return INT_MAX.
1869 return pending < INT_MAX ? (int)pending : INT_MAX;
1872 int SSL_has_pending(const SSL *s)
1875 * Similar to SSL_pending() but returns a 1 to indicate that we have
1876 * processed or unprocessed data available or 0 otherwise (as opposed to the
1877 * number of bytes available). Unlike SSL_pending() this will take into
1878 * account read_ahead data. A 1 return simply indicates that we have data.
1879 * That data may not result in any application data, or we may fail to parse
1880 * the records for some reason.
1882 const SSL_CONNECTION *sc;
1884 #ifndef OPENSSL_NO_QUIC
1886 return ossl_quic_has_pending(s);
1889 sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1891 /* Check buffered app data if any first */
1892 if (SSL_CONNECTION_IS_DTLS(sc)) {
1896 iter = pqueue_iterator(sc->rlayer.d->buffered_app_data.q);
1897 while ((item = pqueue_next(&iter)) != NULL) {
1899 if (rdata->length > 0)
1904 if (RECORD_LAYER_processed_read_pending(&sc->rlayer))
1907 return RECORD_LAYER_read_pending(&sc->rlayer);
1910 X509 *SSL_get1_peer_certificate(const SSL *s)
1912 X509 *r = SSL_get0_peer_certificate(s);
1920 X509 *SSL_get0_peer_certificate(const SSL *s)
1922 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1927 if (sc->session == NULL)
1930 return sc->session->peer;
1933 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
1936 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1941 if (sc->session == NULL)
1944 r = sc->session->peer_chain;
1947 * If we are a client, cert_chain includes the peer's own certificate; if
1948 * we are a server, it does not.
1955 * Now in theory, since the calling process own 't' it should be safe to
1956 * modify. We need to be able to read f without being hassled
1958 int SSL_copy_session_id(SSL *t, const SSL *f)
1961 /* TODO(QUIC): Do we want to support this for QUIC connections? */
1962 SSL_CONNECTION *tsc = SSL_CONNECTION_FROM_SSL_ONLY(t);
1963 const SSL_CONNECTION *fsc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(f);
1965 if (tsc == NULL || fsc == NULL)
1968 /* Do we need to do SSL locking? */
1969 if (!SSL_set_session(t, SSL_get_session(f))) {
1974 * what if we are setup for one protocol version but want to talk another
1976 if (t->method != f->method) {
1977 t->method->ssl_deinit(t);
1978 t->method = f->method;
1979 if (t->method->ssl_init(t) == 0)
1983 CRYPTO_UP_REF(&fsc->cert->references, &i);
1984 ssl_cert_free(tsc->cert);
1985 tsc->cert = fsc->cert;
1986 if (!SSL_set_session_id_context(t, fsc->sid_ctx, (int)fsc->sid_ctx_length)) {
1993 /* Fix this so it checks all the valid key/cert options */
1994 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
1996 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
1997 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
2000 if (ctx->cert->key->privatekey == NULL) {
2001 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
2004 return X509_check_private_key
2005 (ctx->cert->key->x509, ctx->cert->key->privatekey);
2008 /* Fix this function so that it takes an optional type parameter */
2009 int SSL_check_private_key(const SSL *ssl)
2011 const SSL_CONNECTION *sc;
2013 if ((sc = SSL_CONNECTION_FROM_CONST_SSL(ssl)) == NULL) {
2014 ERR_raise(ERR_LIB_SSL, ERR_R_PASSED_NULL_PARAMETER);
2017 if (sc->cert->key->x509 == NULL) {
2018 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
2021 if (sc->cert->key->privatekey == NULL) {
2022 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
2025 return X509_check_private_key(sc->cert->key->x509,
2026 sc->cert->key->privatekey);
2029 int SSL_waiting_for_async(SSL *s)
2031 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2042 int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
2044 ASYNC_WAIT_CTX *ctx;
2045 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2050 if ((ctx = sc->waitctx) == NULL)
2052 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
2055 int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
2056 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
2058 ASYNC_WAIT_CTX *ctx;
2059 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2064 if ((ctx = sc->waitctx) == NULL)
2066 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
2070 int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback)
2072 ctx->async_cb = callback;
2076 int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg)
2078 ctx->async_cb_arg = arg;
2082 int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback)
2084 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2089 sc->async_cb = callback;
2093 int SSL_set_async_callback_arg(SSL *s, void *arg)
2095 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2100 sc->async_cb_arg = arg;
2104 int SSL_get_async_status(SSL *s, int *status)
2106 ASYNC_WAIT_CTX *ctx;
2107 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2112 if ((ctx = sc->waitctx) == NULL)
2114 *status = ASYNC_WAIT_CTX_get_status(ctx);
2118 int SSL_accept(SSL *s)
2120 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2122 #ifndef OPENSSL_NO_QUIC
2124 return s->method->ssl_accept(s);
2130 if (sc->handshake_func == NULL) {
2131 /* Not properly initialized yet */
2132 SSL_set_accept_state(s);
2135 return SSL_do_handshake(s);
2138 int SSL_connect(SSL *s)
2140 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2142 #ifndef OPENSSL_NO_QUIC
2144 return s->method->ssl_connect(s);
2150 if (sc->handshake_func == NULL) {
2151 /* Not properly initialized yet */
2152 SSL_set_connect_state(s);
2155 return SSL_do_handshake(s);
2158 long SSL_get_default_timeout(const SSL *s)
2160 return (long int)ossl_time2seconds(s->method->get_timeout());
2163 static int ssl_async_wait_ctx_cb(void *arg)
2165 SSL *s = (SSL *)arg;
2166 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2171 return sc->async_cb(s, sc->async_cb_arg);
2174 static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
2175 int (*func) (void *))
2178 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2183 if (sc->waitctx == NULL) {
2184 sc->waitctx = ASYNC_WAIT_CTX_new();
2185 if (sc->waitctx == NULL)
2187 if (sc->async_cb != NULL
2188 && !ASYNC_WAIT_CTX_set_callback
2189 (sc->waitctx, ssl_async_wait_ctx_cb, s))
2193 sc->rwstate = SSL_NOTHING;
2194 switch (ASYNC_start_job(&sc->job, sc->waitctx, &ret, func, args,
2195 sizeof(struct ssl_async_args))) {
2197 sc->rwstate = SSL_NOTHING;
2198 ERR_raise(ERR_LIB_SSL, SSL_R_FAILED_TO_INIT_ASYNC);
2201 sc->rwstate = SSL_ASYNC_PAUSED;
2204 sc->rwstate = SSL_ASYNC_NO_JOBS;
2210 sc->rwstate = SSL_NOTHING;
2211 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
2212 /* Shouldn't happen */
2217 static int ssl_io_intern(void *vargs)
2219 struct ssl_async_args *args;
2225 args = (struct ssl_async_args *)vargs;
2229 if ((sc = SSL_CONNECTION_FROM_SSL(s)) == NULL)
2232 switch (args->type) {
2234 return args->f.func_read(s, buf, num, &sc->asyncrw);
2236 return args->f.func_write(s, buf, num, &sc->asyncrw);
2238 return args->f.func_other(s);
2243 int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2245 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2247 #ifndef OPENSSL_NO_QUIC
2249 return s->method->ssl_read(s, buf, num, readbytes);
2255 if (sc->handshake_func == NULL) {
2256 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2260 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2261 sc->rwstate = SSL_NOTHING;
2265 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2266 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
2267 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2271 * If we are a client and haven't received the ServerHello etc then we
2274 ossl_statem_check_finish_init(sc, 0);
2276 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2277 struct ssl_async_args args;
2283 args.type = READFUNC;
2284 args.f.func_read = s->method->ssl_read;
2286 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2287 *readbytes = sc->asyncrw;
2290 return s->method->ssl_read(s, buf, num, readbytes);
2294 int SSL_read(SSL *s, void *buf, int num)
2300 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2304 ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
2307 * The cast is safe here because ret should be <= INT_MAX because num is
2311 ret = (int)readbytes;
2316 int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2318 int ret = ssl_read_internal(s, buf, num, readbytes);
2325 int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
2328 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2330 /* TODO(QUIC): This will need special handling for QUIC */
2335 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2336 return SSL_READ_EARLY_DATA_ERROR;
2339 switch (sc->early_data_state) {
2340 case SSL_EARLY_DATA_NONE:
2341 if (!SSL_in_before(s)) {
2342 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2343 return SSL_READ_EARLY_DATA_ERROR;
2347 case SSL_EARLY_DATA_ACCEPT_RETRY:
2348 sc->early_data_state = SSL_EARLY_DATA_ACCEPTING;
2349 ret = SSL_accept(s);
2352 sc->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
2353 return SSL_READ_EARLY_DATA_ERROR;
2357 case SSL_EARLY_DATA_READ_RETRY:
2358 if (sc->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
2359 sc->early_data_state = SSL_EARLY_DATA_READING;
2360 ret = SSL_read_ex(s, buf, num, readbytes);
2362 * State machine will update early_data_state to
2363 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
2366 if (ret > 0 || (ret <= 0 && sc->early_data_state
2367 != SSL_EARLY_DATA_FINISHED_READING)) {
2368 sc->early_data_state = SSL_EARLY_DATA_READ_RETRY;
2369 return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
2370 : SSL_READ_EARLY_DATA_ERROR;
2373 sc->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
2376 return SSL_READ_EARLY_DATA_FINISH;
2379 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2380 return SSL_READ_EARLY_DATA_ERROR;
2384 int SSL_get_early_data_status(const SSL *s)
2386 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
2388 /* TODO(QUIC): This will need special handling for QUIC */
2392 return sc->ext.early_data;
2395 static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2397 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2399 #ifndef OPENSSL_NO_QUIC
2401 return s->method->ssl_peek(s, buf, num, readbytes);
2407 if (sc->handshake_func == NULL) {
2408 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2412 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2415 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2416 struct ssl_async_args args;
2422 args.type = READFUNC;
2423 args.f.func_read = s->method->ssl_peek;
2425 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2426 *readbytes = sc->asyncrw;
2429 return s->method->ssl_peek(s, buf, num, readbytes);
2433 int SSL_peek(SSL *s, void *buf, int num)
2439 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2443 ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
2446 * The cast is safe here because ret should be <= INT_MAX because num is
2450 ret = (int)readbytes;
2456 int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2458 int ret = ssl_peek_internal(s, buf, num, readbytes);
2465 int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written)
2467 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2469 #ifndef OPENSSL_NO_QUIC
2471 return s->method->ssl_write(s, buf, num, written);
2477 if (sc->handshake_func == NULL) {
2478 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2482 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2483 sc->rwstate = SSL_NOTHING;
2484 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2488 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2489 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
2490 || sc->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
2491 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2494 /* If we are a client and haven't sent the Finished we better do that */
2495 ossl_statem_check_finish_init(sc, 1);
2497 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2499 struct ssl_async_args args;
2502 args.buf = (void *)buf;
2504 args.type = WRITEFUNC;
2505 args.f.func_write = s->method->ssl_write;
2507 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2508 *written = sc->asyncrw;
2511 return s->method->ssl_write(s, buf, num, written);
2515 ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size, int flags)
2518 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2523 if (sc->handshake_func == NULL) {
2524 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2528 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2529 sc->rwstate = SSL_NOTHING;
2530 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2534 if (!BIO_get_ktls_send(sc->wbio)) {
2535 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2539 /* If we have an alert to send, lets send it */
2540 if (sc->s3.alert_dispatch > 0) {
2541 ret = (ossl_ssize_t)s->method->ssl_dispatch_alert(s);
2543 /* SSLfatal() already called if appropriate */
2546 /* if it went, fall through and send more stuff */
2549 sc->rwstate = SSL_WRITING;
2550 if (BIO_flush(sc->wbio) <= 0) {
2551 if (!BIO_should_retry(sc->wbio)) {
2552 sc->rwstate = SSL_NOTHING;
2555 set_sys_error(EAGAIN);
2561 #ifdef OPENSSL_NO_KTLS
2562 ERR_raise_data(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR,
2563 "can't call ktls_sendfile(), ktls disabled");
2566 ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags);
2568 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2569 if ((get_last_sys_error() == EAGAIN) ||
2570 (get_last_sys_error() == EINTR) ||
2571 (get_last_sys_error() == EBUSY))
2572 BIO_set_retry_write(sc->wbio);
2575 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2578 sc->rwstate = SSL_NOTHING;
2583 int SSL_write(SSL *s, const void *buf, int num)
2589 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2593 ret = ssl_write_internal(s, buf, (size_t)num, &written);
2596 * The cast is safe here because ret should be <= INT_MAX because num is
2605 int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
2607 int ret = ssl_write_internal(s, buf, num, written);
2614 int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
2616 int ret, early_data_state;
2618 uint32_t partialwrite;
2619 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2621 /* TODO(QUIC): This will need special handling for QUIC */
2625 switch (sc->early_data_state) {
2626 case SSL_EARLY_DATA_NONE:
2628 || !SSL_in_before(s)
2629 || ((sc->session == NULL || sc->session->ext.max_early_data == 0)
2630 && (sc->psk_use_session_cb == NULL))) {
2631 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2636 case SSL_EARLY_DATA_CONNECT_RETRY:
2637 sc->early_data_state = SSL_EARLY_DATA_CONNECTING;
2638 ret = SSL_connect(s);
2641 sc->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
2646 case SSL_EARLY_DATA_WRITE_RETRY:
2647 sc->early_data_state = SSL_EARLY_DATA_WRITING;
2649 * We disable partial write for early data because we don't keep track
2650 * of how many bytes we've written between the SSL_write_ex() call and
2651 * the flush if the flush needs to be retried)
2653 partialwrite = sc->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
2654 sc->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
2655 ret = SSL_write_ex(s, buf, num, &writtmp);
2656 sc->mode |= partialwrite;
2658 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2661 sc->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
2664 case SSL_EARLY_DATA_WRITE_FLUSH:
2665 /* The buffering BIO is still in place so we need to flush it */
2666 if (statem_flush(sc) != 1)
2669 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2672 case SSL_EARLY_DATA_FINISHED_READING:
2673 case SSL_EARLY_DATA_READ_RETRY:
2674 early_data_state = sc->early_data_state;
2675 /* We are a server writing to an unauthenticated client */
2676 sc->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
2677 ret = SSL_write_ex(s, buf, num, written);
2678 /* The buffering BIO is still in place */
2680 (void)BIO_flush(sc->wbio);
2681 sc->early_data_state = early_data_state;
2685 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2690 int SSL_shutdown(SSL *s)
2693 * Note that this function behaves differently from what one might
2694 * expect. Return values are 0 for no success (yet), 1 for success; but
2695 * calling it once is usually not enough, even if blocking I/O is used
2696 * (see ssl3_shutdown).
2698 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2700 #ifndef OPENSSL_NO_QUIC
2702 return ossl_quic_conn_shutdown(s, 0, NULL, 0);
2708 if (sc->handshake_func == NULL) {
2709 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2713 if (!SSL_in_init(s)) {
2714 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2715 struct ssl_async_args args;
2717 memset(&args, 0, sizeof(args));
2719 args.type = OTHERFUNC;
2720 args.f.func_other = s->method->ssl_shutdown;
2722 return ssl_start_async_job(s, &args, ssl_io_intern);
2724 return s->method->ssl_shutdown(s);
2727 ERR_raise(ERR_LIB_SSL, SSL_R_SHUTDOWN_WHILE_IN_INIT);
2732 int SSL_key_update(SSL *s, int updatetype)
2734 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2736 #ifndef OPENSSL_NO_QUIC
2738 return ossl_quic_key_update(s, updatetype);
2744 if (!SSL_CONNECTION_IS_TLS13(sc)) {
2745 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2749 if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
2750 && updatetype != SSL_KEY_UPDATE_REQUESTED) {
2751 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_KEY_UPDATE_TYPE);
2755 if (!SSL_is_init_finished(s)) {
2756 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
2760 if (RECORD_LAYER_write_pending(&sc->rlayer)) {
2761 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_WRITE_RETRY);
2765 ossl_statem_set_in_init(sc, 1);
2766 sc->key_update = updatetype;
2770 int SSL_get_key_update_type(const SSL *s)
2772 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
2774 #ifndef OPENSSL_NO_QUIC
2776 return ossl_quic_get_key_update_type(s);
2782 return sc->key_update;
2786 * Can we accept a renegotiation request? If yes, set the flag and
2787 * return 1 if yes. If not, raise error and return 0.
2789 static int can_renegotiate(const SSL_CONNECTION *sc)
2791 if (SSL_CONNECTION_IS_TLS13(sc)) {
2792 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2796 if ((sc->options & SSL_OP_NO_RENEGOTIATION) != 0) {
2797 ERR_raise(ERR_LIB_SSL, SSL_R_NO_RENEGOTIATION);
2804 int SSL_renegotiate(SSL *s)
2806 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2811 if (!can_renegotiate(sc))
2814 sc->renegotiate = 1;
2815 sc->new_session = 1;
2816 return s->method->ssl_renegotiate(s);
2819 int SSL_renegotiate_abbreviated(SSL *s)
2821 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2826 if (!can_renegotiate(sc))
2829 sc->renegotiate = 1;
2830 sc->new_session = 0;
2831 return s->method->ssl_renegotiate(s);
2834 int SSL_renegotiate_pending(const SSL *s)
2836 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2842 * becomes true when negotiation is requested; false again once a
2843 * handshake has finished
2845 return (sc->renegotiate != 0);
2848 int SSL_new_session_ticket(SSL *s)
2850 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2855 /* If we are in init because we're sending tickets, okay to send more. */
2856 if ((SSL_in_init(s) && sc->ext.extra_tickets_expected == 0)
2857 || SSL_IS_FIRST_HANDSHAKE(sc) || !sc->server
2858 || !SSL_CONNECTION_IS_TLS13(sc))
2860 sc->ext.extra_tickets_expected++;
2861 if (!RECORD_LAYER_write_pending(&sc->rlayer) && !SSL_in_init(s))
2862 ossl_statem_set_in_init(sc, 1);
2866 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
2869 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2871 /* TODO(QUIC): Special handling for some ctrls will be needed */
2876 case SSL_CTRL_GET_READ_AHEAD:
2877 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
2878 case SSL_CTRL_SET_READ_AHEAD:
2879 l = RECORD_LAYER_get_read_ahead(&sc->rlayer);
2880 RECORD_LAYER_set_read_ahead(&sc->rlayer, larg);
2885 OSSL_PARAM options[2], *opts = options;
2889 *opts++ = OSSL_PARAM_construct_uint32(OSSL_LIBSSL_RECORD_LAYER_PARAM_MODE,
2891 *opts = OSSL_PARAM_construct_end();
2893 /* Ignore return value */
2894 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
2898 case SSL_CTRL_CLEAR_MODE:
2899 return (sc->mode &= ~larg);
2900 case SSL_CTRL_GET_MAX_CERT_LIST:
2901 return (long)sc->max_cert_list;
2902 case SSL_CTRL_SET_MAX_CERT_LIST:
2905 l = (long)sc->max_cert_list;
2906 sc->max_cert_list = (size_t)larg;
2908 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2909 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2911 #ifndef OPENSSL_NO_KTLS
2912 if (sc->wbio != NULL && BIO_get_ktls_send(sc->wbio))
2914 #endif /* OPENSSL_NO_KTLS */
2915 sc->max_send_fragment = larg;
2916 if (sc->max_send_fragment < sc->split_send_fragment)
2917 sc->split_send_fragment = sc->max_send_fragment;
2918 sc->rlayer.wrlmethod->set_max_frag_len(sc->rlayer.wrl, larg);
2920 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2921 if ((size_t)larg > sc->max_send_fragment || larg == 0)
2923 sc->split_send_fragment = larg;
2925 case SSL_CTRL_SET_MAX_PIPELINES:
2926 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2928 sc->max_pipelines = larg;
2929 if (sc->rlayer.rrlmethod->set_max_pipelines != NULL)
2930 sc->rlayer.rrlmethod->set_max_pipelines(sc->rlayer.rrl, (size_t)larg);
2932 case SSL_CTRL_GET_RI_SUPPORT:
2933 return sc->s3.send_connection_binding;
2934 case SSL_CTRL_SET_RETRY_VERIFY:
2935 sc->rwstate = SSL_RETRY_VERIFY;
2937 case SSL_CTRL_CERT_FLAGS:
2938 return (sc->cert->cert_flags |= larg);
2939 case SSL_CTRL_CLEAR_CERT_FLAGS:
2940 return (sc->cert->cert_flags &= ~larg);
2942 case SSL_CTRL_GET_RAW_CIPHERLIST:
2944 if (sc->s3.tmp.ciphers_raw == NULL)
2946 *(unsigned char **)parg = sc->s3.tmp.ciphers_raw;
2947 return (int)sc->s3.tmp.ciphers_rawlen;
2949 return TLS_CIPHER_LEN;
2951 case SSL_CTRL_GET_EXTMS_SUPPORT:
2952 if (!sc->session || SSL_in_init(s) || ossl_statem_get_in_handshake(sc))
2954 if (sc->session->flags & SSL_SESS_FLAG_EXTMS)
2958 case SSL_CTRL_SET_MIN_PROTO_VERSION:
2959 return ssl_check_allowed_versions(larg, sc->max_proto_version)
2960 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
2961 &sc->min_proto_version);
2962 case SSL_CTRL_GET_MIN_PROTO_VERSION:
2963 return sc->min_proto_version;
2964 case SSL_CTRL_SET_MAX_PROTO_VERSION:
2965 return ssl_check_allowed_versions(sc->min_proto_version, larg)
2966 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
2967 &sc->max_proto_version);
2968 case SSL_CTRL_GET_MAX_PROTO_VERSION:
2969 return sc->max_proto_version;
2971 return s->method->ssl_ctrl(s, cmd, larg, parg);
2975 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
2977 return s->method->ssl_callback_ctrl(s, cmd, fp);
2980 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
2982 return ctx->sessions;
2985 static int ssl_tsan_load(SSL_CTX *ctx, TSAN_QUALIFIER int *stat)
2989 if (ssl_tsan_lock(ctx)) {
2990 res = tsan_load(stat);
2991 ssl_tsan_unlock(ctx);
2996 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
2999 /* For some cases with ctx == NULL perform syntax checks */
3002 case SSL_CTRL_SET_GROUPS_LIST:
3003 return tls1_set_groups_list(ctx, NULL, NULL, parg);
3004 case SSL_CTRL_SET_SIGALGS_LIST:
3005 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
3006 return tls1_set_sigalgs_list(NULL, parg, 0);
3013 case SSL_CTRL_GET_READ_AHEAD:
3014 return ctx->read_ahead;
3015 case SSL_CTRL_SET_READ_AHEAD:
3016 l = ctx->read_ahead;
3017 ctx->read_ahead = larg;
3020 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
3021 ctx->msg_callback_arg = parg;
3024 case SSL_CTRL_GET_MAX_CERT_LIST:
3025 return (long)ctx->max_cert_list;
3026 case SSL_CTRL_SET_MAX_CERT_LIST:
3029 l = (long)ctx->max_cert_list;
3030 ctx->max_cert_list = (size_t)larg;
3033 case SSL_CTRL_SET_SESS_CACHE_SIZE:
3036 l = (long)ctx->session_cache_size;
3037 ctx->session_cache_size = (size_t)larg;
3039 case SSL_CTRL_GET_SESS_CACHE_SIZE:
3040 return (long)ctx->session_cache_size;
3041 case SSL_CTRL_SET_SESS_CACHE_MODE:
3042 l = ctx->session_cache_mode;
3043 ctx->session_cache_mode = larg;
3045 case SSL_CTRL_GET_SESS_CACHE_MODE:
3046 return ctx->session_cache_mode;
3048 case SSL_CTRL_SESS_NUMBER:
3049 return lh_SSL_SESSION_num_items(ctx->sessions);
3050 case SSL_CTRL_SESS_CONNECT:
3051 return ssl_tsan_load(ctx, &ctx->stats.sess_connect);
3052 case SSL_CTRL_SESS_CONNECT_GOOD:
3053 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_good);
3054 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
3055 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_renegotiate);
3056 case SSL_CTRL_SESS_ACCEPT:
3057 return ssl_tsan_load(ctx, &ctx->stats.sess_accept);
3058 case SSL_CTRL_SESS_ACCEPT_GOOD:
3059 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_good);
3060 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
3061 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_renegotiate);
3062 case SSL_CTRL_SESS_HIT:
3063 return ssl_tsan_load(ctx, &ctx->stats.sess_hit);
3064 case SSL_CTRL_SESS_CB_HIT:
3065 return ssl_tsan_load(ctx, &ctx->stats.sess_cb_hit);
3066 case SSL_CTRL_SESS_MISSES:
3067 return ssl_tsan_load(ctx, &ctx->stats.sess_miss);
3068 case SSL_CTRL_SESS_TIMEOUTS:
3069 return ssl_tsan_load(ctx, &ctx->stats.sess_timeout);
3070 case SSL_CTRL_SESS_CACHE_FULL:
3071 return ssl_tsan_load(ctx, &ctx->stats.sess_cache_full);
3073 return (ctx->mode |= larg);
3074 case SSL_CTRL_CLEAR_MODE:
3075 return (ctx->mode &= ~larg);
3076 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
3077 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
3079 ctx->max_send_fragment = larg;
3080 if (ctx->max_send_fragment < ctx->split_send_fragment)
3081 ctx->split_send_fragment = ctx->max_send_fragment;
3083 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
3084 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
3086 ctx->split_send_fragment = larg;
3088 case SSL_CTRL_SET_MAX_PIPELINES:
3089 if (larg < 1 || larg > SSL_MAX_PIPELINES)
3091 ctx->max_pipelines = larg;
3093 case SSL_CTRL_CERT_FLAGS:
3094 return (ctx->cert->cert_flags |= larg);
3095 case SSL_CTRL_CLEAR_CERT_FLAGS:
3096 return (ctx->cert->cert_flags &= ~larg);
3097 case SSL_CTRL_SET_MIN_PROTO_VERSION:
3098 return ssl_check_allowed_versions(larg, ctx->max_proto_version)
3099 && ssl_set_version_bound(ctx->method->version, (int)larg,
3100 &ctx->min_proto_version);
3101 case SSL_CTRL_GET_MIN_PROTO_VERSION:
3102 return ctx->min_proto_version;
3103 case SSL_CTRL_SET_MAX_PROTO_VERSION:
3104 return ssl_check_allowed_versions(ctx->min_proto_version, larg)
3105 && ssl_set_version_bound(ctx->method->version, (int)larg,
3106 &ctx->max_proto_version);
3107 case SSL_CTRL_GET_MAX_PROTO_VERSION:
3108 return ctx->max_proto_version;
3110 return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
3114 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
3117 case SSL_CTRL_SET_MSG_CALLBACK:
3118 ctx->msg_callback = (void (*)
3119 (int write_p, int version, int content_type,
3120 const void *buf, size_t len, SSL *ssl,
3125 return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
3129 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
3138 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
3139 const SSL_CIPHER *const *bp)
3141 if ((*ap)->id > (*bp)->id)
3143 if ((*ap)->id < (*bp)->id)
3149 * return a STACK of the ciphers available for the SSL and in order of
3152 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
3154 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3157 if (sc->cipher_list != NULL) {
3158 return sc->cipher_list;
3159 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
3160 return s->ctx->cipher_list;
3166 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
3168 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3170 if (sc == NULL || !sc->server)
3172 return sc->peer_ciphers;
3175 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
3177 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
3179 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3184 ciphers = SSL_get_ciphers(s);
3187 if (!ssl_set_client_disabled(sc))
3189 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
3190 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
3191 if (!ssl_cipher_disabled(sc, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
3193 sk = sk_SSL_CIPHER_new_null();
3196 if (!sk_SSL_CIPHER_push(sk, c)) {
3197 sk_SSL_CIPHER_free(sk);
3205 /** return a STACK of the ciphers available for the SSL and in order of
3207 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL_CONNECTION *s)
3210 if (s->cipher_list_by_id != NULL)
3211 return s->cipher_list_by_id;
3212 else if (s->ssl.ctx != NULL
3213 && s->ssl.ctx->cipher_list_by_id != NULL)
3214 return s->ssl.ctx->cipher_list_by_id;
3219 /** The old interface to get the same thing as SSL_get_ciphers() */
3220 const char *SSL_get_cipher_list(const SSL *s, int n)
3222 const SSL_CIPHER *c;
3223 STACK_OF(SSL_CIPHER) *sk;
3227 sk = SSL_get_ciphers(s);
3228 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
3230 c = sk_SSL_CIPHER_value(sk, n);
3236 /** return a STACK of the ciphers available for the SSL_CTX and in order of
3238 STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
3241 return ctx->cipher_list;
3246 * Distinguish between ciphers controlled by set_ciphersuite() and
3247 * set_cipher_list() when counting.
3249 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
3252 const SSL_CIPHER *c;
3256 for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
3257 c = sk_SSL_CIPHER_value(sk, i);
3258 if (c->min_tls >= TLS1_3_VERSION)
3265 /** specify the ciphers to be used by default by the SSL_CTX */
3266 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
3268 STACK_OF(SSL_CIPHER) *sk;
3270 sk = ssl_create_cipher_list(ctx, ctx->tls13_ciphersuites,
3271 &ctx->cipher_list, &ctx->cipher_list_by_id, str,
3274 * ssl_create_cipher_list may return an empty stack if it was unable to
3275 * find a cipher matching the given rule string (for example if the rule
3276 * string specifies a cipher which has been disabled). This is not an
3277 * error as far as ssl_create_cipher_list is concerned, and hence
3278 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
3282 else if (cipher_list_tls12_num(sk) == 0) {
3283 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3289 /** specify the ciphers to be used by the SSL */
3290 int SSL_set_cipher_list(SSL *s, const char *str)
3292 STACK_OF(SSL_CIPHER) *sk;
3293 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3298 sk = ssl_create_cipher_list(s->ctx, sc->tls13_ciphersuites,
3299 &sc->cipher_list, &sc->cipher_list_by_id, str,
3301 /* see comment in SSL_CTX_set_cipher_list */
3304 else if (cipher_list_tls12_num(sk) == 0) {
3305 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3311 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
3314 STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
3315 const SSL_CIPHER *c;
3317 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3323 || sc->peer_ciphers == NULL
3328 clntsk = sc->peer_ciphers;
3329 srvrsk = SSL_get_ciphers(s);
3330 if (clntsk == NULL || srvrsk == NULL)
3333 if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
3336 for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
3339 c = sk_SSL_CIPHER_value(clntsk, i);
3340 if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
3343 n = strlen(c->name);
3360 * Return the requested servername (SNI) value. Note that the behaviour varies
3362 * - whether this is called by the client or the server,
3363 * - if we are before or during/after the handshake,
3364 * - if a resumption or normal handshake is being attempted/has occurred
3365 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
3367 * Note that only the host_name type is defined (RFC 3546).
3369 const char *SSL_get_servername(const SSL *s, const int type)
3371 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3378 * If we don't know if we are the client or the server yet then we assume
3381 server = sc->handshake_func == NULL ? 0 : sc->server;
3383 if (type != TLSEXT_NAMETYPE_host_name)
3389 * In TLSv1.3 on the server SNI is not associated with the session
3390 * but in TLSv1.2 or below it is.
3392 * Before the handshake:
3395 * During/after the handshake (TLSv1.2 or below resumption occurred):
3396 * - If a servername was accepted by the server in the original
3397 * handshake then it will return that servername, or NULL otherwise.
3399 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3400 * - The function will return the servername requested by the client in
3401 * this handshake or NULL if none was requested.
3403 if (sc->hit && !SSL_CONNECTION_IS_TLS13(sc))
3404 return sc->session->ext.hostname;
3409 * Before the handshake:
3410 * - If a servername has been set via a call to
3411 * SSL_set_tlsext_host_name() then it will return that servername
3412 * - If one has not been set, but a TLSv1.2 resumption is being
3413 * attempted and the session from the original handshake had a
3414 * servername accepted by the server then it will return that
3416 * - Otherwise it returns NULL
3418 * During/after the handshake (TLSv1.2 or below resumption occurred):
3419 * - If the session from the original handshake had a servername accepted
3420 * by the server then it will return that servername.
3421 * - Otherwise it returns the servername set via
3422 * SSL_set_tlsext_host_name() (or NULL if it was not called).
3424 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3425 * - It will return the servername set via SSL_set_tlsext_host_name()
3426 * (or NULL if it was not called).
3428 if (SSL_in_before(s)) {
3429 if (sc->ext.hostname == NULL
3430 && sc->session != NULL
3431 && sc->session->ssl_version != TLS1_3_VERSION)
3432 return sc->session->ext.hostname;
3434 if (!SSL_CONNECTION_IS_TLS13(sc) && sc->hit
3435 && sc->session->ext.hostname != NULL)
3436 return sc->session->ext.hostname;
3440 return sc->ext.hostname;
3443 int SSL_get_servername_type(const SSL *s)
3445 if (SSL_get_servername(s, TLSEXT_NAMETYPE_host_name) != NULL)
3446 return TLSEXT_NAMETYPE_host_name;
3451 * SSL_select_next_proto implements the standard protocol selection. It is
3452 * expected that this function is called from the callback set by
3453 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
3454 * vector of 8-bit, length prefixed byte strings. The length byte itself is
3455 * not included in the length. A byte string of length 0 is invalid. No byte
3456 * string may be truncated. The current, but experimental algorithm for
3457 * selecting the protocol is: 1) If the server doesn't support NPN then this
3458 * is indicated to the callback. In this case, the client application has to
3459 * abort the connection or have a default application level protocol. 2) If
3460 * the server supports NPN, but advertises an empty list then the client
3461 * selects the first protocol in its list, but indicates via the API that this
3462 * fallback case was enacted. 3) Otherwise, the client finds the first
3463 * protocol in the server's list that it supports and selects this protocol.
3464 * This is because it's assumed that the server has better information about
3465 * which protocol a client should use. 4) If the client doesn't support any
3466 * of the server's advertised protocols, then this is treated the same as
3467 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
3468 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
3470 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
3471 const unsigned char *server,
3472 unsigned int server_len,
3473 const unsigned char *client, unsigned int client_len)
3476 const unsigned char *result;
3477 int status = OPENSSL_NPN_UNSUPPORTED;
3480 * For each protocol in server preference order, see if we support it.
3482 for (i = 0; i < server_len;) {
3483 for (j = 0; j < client_len;) {
3484 if (server[i] == client[j] &&
3485 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
3486 /* We found a match */
3487 result = &server[i];
3488 status = OPENSSL_NPN_NEGOTIATED;
3498 /* There's no overlap between our protocols and the server's list. */
3500 status = OPENSSL_NPN_NO_OVERLAP;
3503 *out = (unsigned char *)result + 1;
3504 *outlen = result[0];
3508 #ifndef OPENSSL_NO_NEXTPROTONEG
3510 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
3511 * client's requested protocol for this connection and returns 0. If the
3512 * client didn't request any protocol, then *data is set to NULL. Note that
3513 * the client can request any protocol it chooses. The value returned from
3514 * this function need not be a member of the list of supported protocols
3515 * provided by the callback.
3517 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
3520 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3523 /* We have no other way to indicate error */
3529 *data = sc->ext.npn;
3530 if (*data == NULL) {
3533 *len = (unsigned int)sc->ext.npn_len;
3538 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
3539 * a TLS server needs a list of supported protocols for Next Protocol
3540 * Negotiation. The returned list must be in wire format. The list is
3541 * returned by setting |out| to point to it and |outlen| to its length. This
3542 * memory will not be modified, but one should assume that the SSL* keeps a
3543 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
3544 * wishes to advertise. Otherwise, no such extension will be included in the
3547 void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
3548 SSL_CTX_npn_advertised_cb_func cb,
3551 ctx->ext.npn_advertised_cb = cb;
3552 ctx->ext.npn_advertised_cb_arg = arg;
3556 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
3557 * client needs to select a protocol from the server's provided list. |out|
3558 * must be set to point to the selected protocol (which may be within |in|).
3559 * The length of the protocol name must be written into |outlen|. The
3560 * server's advertised protocols are provided in |in| and |inlen|. The
3561 * callback can assume that |in| is syntactically valid. The client must
3562 * select a protocol. It is fatal to the connection if this callback returns
3563 * a value other than SSL_TLSEXT_ERR_OK.
3565 void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
3566 SSL_CTX_npn_select_cb_func cb,
3569 ctx->ext.npn_select_cb = cb;
3570 ctx->ext.npn_select_cb_arg = arg;
3574 static int alpn_value_ok(const unsigned char *protos, unsigned int protos_len)
3578 if (protos_len < 2 || protos == NULL)
3581 for (idx = 0; idx < protos_len; idx += protos[idx] + 1) {
3582 if (protos[idx] == 0)
3585 return idx == protos_len;
3588 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
3589 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3590 * length-prefixed strings). Returns 0 on success.
3592 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
3593 unsigned int protos_len)
3595 unsigned char *alpn;
3597 if (protos_len == 0 || protos == NULL) {
3598 OPENSSL_free(ctx->ext.alpn);
3599 ctx->ext.alpn = NULL;
3600 ctx->ext.alpn_len = 0;
3603 /* Not valid per RFC */
3604 if (!alpn_value_ok(protos, protos_len))
3607 alpn = OPENSSL_memdup(protos, protos_len);
3610 OPENSSL_free(ctx->ext.alpn);
3611 ctx->ext.alpn = alpn;
3612 ctx->ext.alpn_len = protos_len;
3618 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
3619 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3620 * length-prefixed strings). Returns 0 on success.
3622 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
3623 unsigned int protos_len)
3625 unsigned char *alpn;
3626 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
3631 if (protos_len == 0 || protos == NULL) {
3632 OPENSSL_free(sc->ext.alpn);
3633 sc->ext.alpn = NULL;
3634 sc->ext.alpn_len = 0;
3637 /* Not valid per RFC */
3638 if (!alpn_value_ok(protos, protos_len))
3641 alpn = OPENSSL_memdup(protos, protos_len);
3644 OPENSSL_free(sc->ext.alpn);
3645 sc->ext.alpn = alpn;
3646 sc->ext.alpn_len = protos_len;
3652 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3653 * called during ClientHello processing in order to select an ALPN protocol
3654 * from the client's list of offered protocols.
3656 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
3657 SSL_CTX_alpn_select_cb_func cb,
3660 ctx->ext.alpn_select_cb = cb;
3661 ctx->ext.alpn_select_cb_arg = arg;
3665 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3666 * On return it sets |*data| to point to |*len| bytes of protocol name
3667 * (not including the leading length-prefix byte). If the server didn't
3668 * respond with a negotiated protocol then |*len| will be zero.
3670 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
3673 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
3676 /* We have no other way to indicate error */
3682 *data = sc->s3.alpn_selected;
3686 *len = (unsigned int)sc->s3.alpn_selected_len;
3689 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
3690 const char *label, size_t llen,
3691 const unsigned char *context, size_t contextlen,
3694 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3699 if (sc->session == NULL
3700 || (sc->version < TLS1_VERSION && sc->version != DTLS1_BAD_VER))
3703 return s->method->ssl3_enc->export_keying_material(sc, out, olen, label,
3705 contextlen, use_context);
3708 int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
3709 const char *label, size_t llen,
3710 const unsigned char *context,
3713 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3718 if (sc->version != TLS1_3_VERSION)
3721 return tls13_export_keying_material_early(sc, out, olen, label, llen,
3722 context, contextlen);
3725 static unsigned long ssl_session_hash(const SSL_SESSION *a)
3727 const unsigned char *session_id = a->session_id;
3729 unsigned char tmp_storage[4];
3731 if (a->session_id_length < sizeof(tmp_storage)) {
3732 memset(tmp_storage, 0, sizeof(tmp_storage));
3733 memcpy(tmp_storage, a->session_id, a->session_id_length);
3734 session_id = tmp_storage;
3738 ((unsigned long)session_id[0]) |
3739 ((unsigned long)session_id[1] << 8L) |
3740 ((unsigned long)session_id[2] << 16L) |
3741 ((unsigned long)session_id[3] << 24L);
3746 * NB: If this function (or indeed the hash function which uses a sort of
3747 * coarser function than this one) is changed, ensure
3748 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3749 * being able to construct an SSL_SESSION that will collide with any existing
3750 * session with a matching session ID.
3752 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
3754 if (a->ssl_version != b->ssl_version)
3756 if (a->session_id_length != b->session_id_length)
3758 return memcmp(a->session_id, b->session_id, a->session_id_length);
3762 * These wrapper functions should remain rather than redeclaring
3763 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3764 * variable. The reason is that the functions aren't static, they're exposed
3768 SSL_CTX *SSL_CTX_new_ex(OSSL_LIB_CTX *libctx, const char *propq,
3769 const SSL_METHOD *meth)
3771 SSL_CTX *ret = NULL;
3772 #ifndef OPENSSL_NO_COMP_ALG
3777 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_METHOD_PASSED);
3781 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
3784 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3785 ERR_raise(ERR_LIB_SSL, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
3789 ret = OPENSSL_zalloc(sizeof(*ret));
3793 /* Init the reference counting before any call to SSL_CTX_free */
3794 if (!CRYPTO_NEW_REF(&ret->references, 1))
3797 ret->lock = CRYPTO_THREAD_lock_new();
3798 if (ret->lock == NULL) {
3799 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3803 #ifdef TSAN_REQUIRES_LOCKING
3804 ret->tsan_lock = CRYPTO_THREAD_lock_new();
3805 if (ret->tsan_lock == NULL) {
3806 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3811 ret->libctx = libctx;
3812 if (propq != NULL) {
3813 ret->propq = OPENSSL_strdup(propq);
3814 if (ret->propq == NULL)
3819 ret->min_proto_version = 0;
3820 ret->max_proto_version = 0;
3821 ret->mode = SSL_MODE_AUTO_RETRY;
3822 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
3823 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
3824 /* We take the system default. */
3825 ret->session_timeout = meth->get_timeout();
3826 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
3827 ret->verify_mode = SSL_VERIFY_NONE;
3829 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
3830 if (ret->sessions == NULL) {
3831 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3834 ret->cert_store = X509_STORE_new();
3835 if (ret->cert_store == NULL) {
3836 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3839 #ifndef OPENSSL_NO_CT
3840 ret->ctlog_store = CTLOG_STORE_new_ex(libctx, propq);
3841 if (ret->ctlog_store == NULL) {
3842 ERR_raise(ERR_LIB_SSL, ERR_R_CT_LIB);
3847 /* initialize cipher/digest methods table */
3848 if (!ssl_load_ciphers(ret)) {
3849 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3853 if (!ssl_load_groups(ret)) {
3854 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3858 /* load provider sigalgs */
3859 if (!ssl_load_sigalgs(ret)) {
3860 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3864 /* initialise sig algs */
3865 if (!ssl_setup_sigalgs(ret)) {
3866 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3870 if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites())) {
3871 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3875 if ((ret->cert = ssl_cert_new(SSL_PKEY_NUM + ret->sigalg_list_len)) == NULL) {
3876 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3880 if (!ssl_create_cipher_list(ret,
3881 ret->tls13_ciphersuites,
3882 &ret->cipher_list, &ret->cipher_list_by_id,
3883 OSSL_default_cipher_list(), ret->cert)
3884 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
3885 ERR_raise(ERR_LIB_SSL, SSL_R_LIBRARY_HAS_NO_CIPHERS);
3889 ret->param = X509_VERIFY_PARAM_new();
3890 if (ret->param == NULL) {
3891 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3896 * If these aren't available from the provider we'll get NULL returns.
3897 * That's fine but will cause errors later if SSLv3 is negotiated
3899 ret->md5 = ssl_evp_md_fetch(libctx, NID_md5, propq);
3900 ret->sha1 = ssl_evp_md_fetch(libctx, NID_sha1, propq);
3902 if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL) {
3903 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3907 if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL) {
3908 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3912 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) {
3913 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3917 if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
3920 /* No compression for DTLS */
3921 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
3922 ret->comp_methods = SSL_COMP_get_compression_methods();
3924 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3925 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3927 /* Setup RFC5077 ticket keys */
3928 if ((RAND_bytes_ex(libctx, ret->ext.tick_key_name,
3929 sizeof(ret->ext.tick_key_name), 0) <= 0)
3930 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_hmac_key,
3931 sizeof(ret->ext.secure->tick_hmac_key), 0) <= 0)
3932 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_aes_key,
3933 sizeof(ret->ext.secure->tick_aes_key), 0) <= 0))
3934 ret->options |= SSL_OP_NO_TICKET;
3936 if (RAND_priv_bytes_ex(libctx, ret->ext.cookie_hmac_key,
3937 sizeof(ret->ext.cookie_hmac_key), 0) <= 0) {
3938 ERR_raise(ERR_LIB_SSL, ERR_R_RAND_LIB);
3942 #ifndef OPENSSL_NO_SRP
3943 if (!ssl_ctx_srp_ctx_init_intern(ret)) {
3944 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3948 #ifndef OPENSSL_NO_ENGINE
3949 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3950 # define eng_strx(x) #x
3951 # define eng_str(x) eng_strx(x)
3952 /* Use specific client engine automatically... ignore errors */
3955 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3958 ENGINE_load_builtin_engines();
3959 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3961 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
3967 #ifndef OPENSSL_NO_COMP_ALG
3969 * Set the default order: brotli, zlib, zstd
3970 * Including only those enabled algorithms
3972 memset(ret->cert_comp_prefs, 0, sizeof(ret->cert_comp_prefs));
3974 if (ossl_comp_has_alg(TLSEXT_comp_cert_brotli))
3975 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_brotli;
3976 if (ossl_comp_has_alg(TLSEXT_comp_cert_zlib))
3977 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zlib;
3978 if (ossl_comp_has_alg(TLSEXT_comp_cert_zstd))
3979 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zstd;
3982 * Disable compression by default to prevent CRIME. Applications can
3983 * re-enable compression by configuring
3984 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3985 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3986 * middlebox compatibility by default. This may be disabled by default in
3987 * a later OpenSSL version.
3989 ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
3991 ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
3994 * We cannot usefully set a default max_early_data here (which gets
3995 * propagated in SSL_new(), for the following reason: setting the
3996 * SSL field causes tls_construct_stoc_early_data() to tell the
3997 * client that early data will be accepted when constructing a TLS 1.3
3998 * session ticket, and the client will accordingly send us early data
3999 * when using that ticket (if the client has early data to send).
4000 * However, in order for the early data to actually be consumed by
4001 * the application, the application must also have calls to
4002 * SSL_read_early_data(); otherwise we'll just skip past the early data
4003 * and ignore it. So, since the application must add calls to
4004 * SSL_read_early_data(), we also require them to add
4005 * calls to SSL_CTX_set_max_early_data() in order to use early data,
4006 * eliminating the bandwidth-wasting early data in the case described
4009 ret->max_early_data = 0;
4012 * Default recv_max_early_data is a fully loaded single record. Could be
4013 * split across multiple records in practice. We set this differently to
4014 * max_early_data so that, in the default case, we do not advertise any
4015 * support for early_data, but if a client were to send us some (e.g.
4016 * because of an old, stale ticket) then we will tolerate it and skip over
4019 ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
4021 /* By default we send two session tickets automatically in TLSv1.3 */
4022 ret->num_tickets = 2;
4024 ssl_ctx_system_config(ret);
4032 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
4034 return SSL_CTX_new_ex(NULL, NULL, meth);
4037 int SSL_CTX_up_ref(SSL_CTX *ctx)
4041 if (CRYPTO_UP_REF(&ctx->references, &i) <= 0)
4044 REF_PRINT_COUNT("SSL_CTX", ctx);
4045 REF_ASSERT_ISNT(i < 2);
4046 return ((i > 1) ? 1 : 0);
4049 void SSL_CTX_free(SSL_CTX *a)
4057 CRYPTO_DOWN_REF(&a->references, &i);
4058 REF_PRINT_COUNT("SSL_CTX", a);
4061 REF_ASSERT_ISNT(i < 0);
4063 X509_VERIFY_PARAM_free(a->param);
4064 dane_ctx_final(&a->dane);
4067 * Free internal session cache. However: the remove_cb() may reference
4068 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
4069 * after the sessions were flushed.
4070 * As the ex_data handling routines might also touch the session cache,
4071 * the most secure solution seems to be: empty (flush) the cache, then
4072 * free ex_data, then finally free the cache.
4073 * (See ticket [openssl.org #212].)
4075 if (a->sessions != NULL)
4076 SSL_CTX_flush_sessions(a, 0);
4078 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
4079 lh_SSL_SESSION_free(a->sessions);
4080 X509_STORE_free(a->cert_store);
4081 #ifndef OPENSSL_NO_CT
4082 CTLOG_STORE_free(a->ctlog_store);
4084 sk_SSL_CIPHER_free(a->cipher_list);
4085 sk_SSL_CIPHER_free(a->cipher_list_by_id);
4086 sk_SSL_CIPHER_free(a->tls13_ciphersuites);
4087 ssl_cert_free(a->cert);
4088 sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
4089 sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
4090 OSSL_STACK_OF_X509_free(a->extra_certs);
4091 a->comp_methods = NULL;
4092 #ifndef OPENSSL_NO_SRTP
4093 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
4095 #ifndef OPENSSL_NO_SRP
4096 ssl_ctx_srp_ctx_free_intern(a);
4098 #ifndef OPENSSL_NO_ENGINE
4099 tls_engine_finish(a->client_cert_engine);
4102 OPENSSL_free(a->ext.ecpointformats);
4103 OPENSSL_free(a->ext.supportedgroups);
4104 OPENSSL_free(a->ext.supported_groups_default);
4105 OPENSSL_free(a->ext.alpn);
4106 OPENSSL_secure_free(a->ext.secure);
4108 ssl_evp_md_free(a->md5);
4109 ssl_evp_md_free(a->sha1);
4111 for (j = 0; j < SSL_ENC_NUM_IDX; j++)
4112 ssl_evp_cipher_free(a->ssl_cipher_methods[j]);
4113 for (j = 0; j < SSL_MD_NUM_IDX; j++)
4114 ssl_evp_md_free(a->ssl_digest_methods[j]);
4115 for (j = 0; j < a->group_list_len; j++) {
4116 OPENSSL_free(a->group_list[j].tlsname);
4117 OPENSSL_free(a->group_list[j].realname);
4118 OPENSSL_free(a->group_list[j].algorithm);
4120 OPENSSL_free(a->group_list);
4121 for (j = 0; j < a->sigalg_list_len; j++) {
4122 OPENSSL_free(a->sigalg_list[j].name);
4123 OPENSSL_free(a->sigalg_list[j].sigalg_name);
4124 OPENSSL_free(a->sigalg_list[j].sigalg_oid);
4125 OPENSSL_free(a->sigalg_list[j].sig_name);
4126 OPENSSL_free(a->sigalg_list[j].sig_oid);
4127 OPENSSL_free(a->sigalg_list[j].hash_name);
4128 OPENSSL_free(a->sigalg_list[j].hash_oid);
4129 OPENSSL_free(a->sigalg_list[j].keytype);
4130 OPENSSL_free(a->sigalg_list[j].keytype_oid);
4132 OPENSSL_free(a->sigalg_list);
4133 OPENSSL_free(a->ssl_cert_info);
4135 OPENSSL_free(a->sigalg_lookup_cache);
4136 OPENSSL_free(a->tls12_sigalgs);
4138 OPENSSL_free(a->client_cert_type);
4139 OPENSSL_free(a->server_cert_type);
4141 CRYPTO_THREAD_lock_free(a->lock);
4142 CRYPTO_FREE_REF(&a->references);
4143 #ifdef TSAN_REQUIRES_LOCKING
4144 CRYPTO_THREAD_lock_free(a->tsan_lock);
4147 OPENSSL_free(a->propq);
4152 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
4154 ctx->default_passwd_callback = cb;
4157 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
4159 ctx->default_passwd_callback_userdata = u;
4162 pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
4164 return ctx->default_passwd_callback;
4167 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
4169 return ctx->default_passwd_callback_userdata;
4172 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
4174 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4179 sc->default_passwd_callback = cb;
4182 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
4184 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4189 sc->default_passwd_callback_userdata = u;
4192 pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
4194 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4199 return sc->default_passwd_callback;
4202 void *SSL_get_default_passwd_cb_userdata(SSL *s)
4204 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4209 return sc->default_passwd_callback_userdata;
4212 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
4213 int (*cb) (X509_STORE_CTX *, void *),
4216 ctx->app_verify_callback = cb;
4217 ctx->app_verify_arg = arg;
4220 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
4221 int (*cb) (int, X509_STORE_CTX *))
4223 ctx->verify_mode = mode;
4224 ctx->default_verify_callback = cb;
4227 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
4229 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
4232 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
4234 ssl_cert_set_cert_cb(c->cert, cb, arg);
4237 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
4239 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4244 ssl_cert_set_cert_cb(sc->cert, cb, arg);
4247 void ssl_set_masks(SSL_CONNECTION *s)
4250 uint32_t *pvalid = s->s3.tmp.valid_flags;
4251 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
4252 unsigned long mask_k, mask_a;
4253 int have_ecc_cert, ecdsa_ok;
4258 dh_tmp = (c->dh_tmp != NULL
4259 || c->dh_tmp_cb != NULL
4262 rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4263 rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4264 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
4265 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
4269 OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
4270 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
4272 #ifndef OPENSSL_NO_GOST
4273 if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
4274 mask_k |= SSL_kGOST | SSL_kGOST18;
4275 mask_a |= SSL_aGOST12;
4277 if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
4278 mask_k |= SSL_kGOST | SSL_kGOST18;
4279 mask_a |= SSL_aGOST12;
4281 if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
4282 mask_k |= SSL_kGOST;
4283 mask_a |= SSL_aGOST01;
4294 * If we only have an RSA-PSS certificate allow RSA authentication
4295 * if TLS 1.2 and peer supports it.
4298 if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
4299 && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
4300 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION))
4307 mask_a |= SSL_aNULL;
4310 * You can do anything with an RPK key, since there's no cert to restrict it
4311 * But we need to check for private keys
4313 if (pvalid[SSL_PKEY_RSA] & CERT_PKEY_RPK) {
4317 if (pvalid[SSL_PKEY_ECC] & CERT_PKEY_RPK)
4318 mask_a |= SSL_aECDSA;
4319 if (TLS1_get_version(&s->ssl) == TLS1_2_VERSION) {
4320 if (pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_RPK)
4322 if (pvalid[SSL_PKEY_ED25519] & CERT_PKEY_RPK
4323 || pvalid[SSL_PKEY_ED448] & CERT_PKEY_RPK)
4324 mask_a |= SSL_aECDSA;
4328 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
4329 * depending on the key usage extension.
4331 if (have_ecc_cert) {
4333 ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
4334 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
4335 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
4338 mask_a |= SSL_aECDSA;
4340 /* Allow Ed25519 for TLS 1.2 if peer supports it */
4341 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
4342 && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
4343 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4344 mask_a |= SSL_aECDSA;
4346 /* Allow Ed448 for TLS 1.2 if peer supports it */
4347 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
4348 && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
4349 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4350 mask_a |= SSL_aECDSA;
4352 mask_k |= SSL_kECDHE;
4354 #ifndef OPENSSL_NO_PSK
4357 if (mask_k & SSL_kRSA)
4358 mask_k |= SSL_kRSAPSK;
4359 if (mask_k & SSL_kDHE)
4360 mask_k |= SSL_kDHEPSK;
4361 if (mask_k & SSL_kECDHE)
4362 mask_k |= SSL_kECDHEPSK;
4365 s->s3.tmp.mask_k = mask_k;
4366 s->s3.tmp.mask_a = mask_a;
4369 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CONNECTION *s)
4371 if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
4372 /* key usage, if present, must allow signing */
4373 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
4374 ERR_raise(ERR_LIB_SSL, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
4378 return 1; /* all checks are ok */
4381 int ssl_get_server_cert_serverinfo(SSL_CONNECTION *s,
4382 const unsigned char **serverinfo,
4383 size_t *serverinfo_length)
4385 CERT_PKEY *cpk = s->s3.tmp.cert;
4386 *serverinfo_length = 0;
4388 if (cpk == NULL || cpk->serverinfo == NULL)
4391 *serverinfo = cpk->serverinfo;
4392 *serverinfo_length = cpk->serverinfo_length;
4396 void ssl_update_cache(SSL_CONNECTION *s, int mode)
4401 * If the session_id_length is 0, we are not supposed to cache it, and it
4402 * would be rather hard to do anyway :-)
4404 if (s->session->session_id_length == 0)
4408 * If sid_ctx_length is 0 there is no specific application context
4409 * associated with this session, so when we try to resume it and
4410 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
4411 * indication that this is actually a session for the proper application
4412 * context, and the *handshake* will fail, not just the resumption attempt.
4413 * Do not cache (on the server) these sessions that are not resumable
4414 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
4416 if (s->server && s->session->sid_ctx_length == 0
4417 && (s->verify_mode & SSL_VERIFY_PEER) != 0)
4420 i = s->session_ctx->session_cache_mode;
4422 && (!s->hit || SSL_CONNECTION_IS_TLS13(s))) {
4424 * Add the session to the internal cache. In server side TLSv1.3 we
4425 * normally don't do this because by default it's a full stateless ticket
4426 * with only a dummy session id so there is no reason to cache it,
4428 * - we are doing early_data, in which case we cache so that we can
4430 * - the application has set a remove_session_cb so needs to know about
4431 * session timeout events
4432 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
4434 if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
4435 && (!SSL_CONNECTION_IS_TLS13(s)
4437 || (s->max_early_data > 0
4438 && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
4439 || s->session_ctx->remove_session_cb != NULL
4440 || (s->options & SSL_OP_NO_TICKET) != 0))
4441 SSL_CTX_add_session(s->session_ctx, s->session);
4444 * Add the session to the external cache. We do this even in server side
4445 * TLSv1.3 without early data because some applications just want to
4446 * know about the creation of a session and aren't doing a full cache.
4448 if (s->session_ctx->new_session_cb != NULL) {
4449 SSL_SESSION_up_ref(s->session);
4450 if (!s->session_ctx->new_session_cb(SSL_CONNECTION_GET_SSL(s),
4452 SSL_SESSION_free(s->session);
4456 /* auto flush every 255 connections */
4457 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
4458 TSAN_QUALIFIER int *stat;
4460 if (mode & SSL_SESS_CACHE_CLIENT)
4461 stat = &s->session_ctx->stats.sess_connect_good;
4463 stat = &s->session_ctx->stats.sess_accept_good;
4464 if ((ssl_tsan_load(s->session_ctx, stat) & 0xff) == 0xff)
4465 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
4469 const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
4474 const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
4479 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
4482 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4484 /* TODO(QUIC): Do we want this for QUIC? */
4486 || (s->type != SSL_TYPE_SSL_CONNECTION && s->method != meth))
4489 if (s->method != meth) {
4490 const SSL_METHOD *sm = s->method;
4491 int (*hf) (SSL *) = sc->handshake_func;
4493 if (sm->version == meth->version)
4498 ret = s->method->ssl_init(s);
4501 if (hf == sm->ssl_connect)
4502 sc->handshake_func = meth->ssl_connect;
4503 else if (hf == sm->ssl_accept)
4504 sc->handshake_func = meth->ssl_accept;
4509 int SSL_get_error(const SSL *s, int i)
4514 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4517 return SSL_ERROR_NONE;
4519 #ifndef OPENSSL_NO_QUIC
4521 reason = ossl_quic_get_error(s, i);
4522 if (reason != SSL_ERROR_NONE)
4528 return SSL_ERROR_SSL;
4531 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
4532 * where we do encode the error
4534 if ((l = ERR_peek_error()) != 0) {
4535 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
4536 return SSL_ERROR_SYSCALL;
4538 return SSL_ERROR_SSL;
4541 #ifndef OPENSSL_NO_QUIC
4545 if (SSL_want_read(s)) {
4546 bio = SSL_get_rbio(s);
4547 if (BIO_should_read(bio))
4548 return SSL_ERROR_WANT_READ;
4549 else if (BIO_should_write(bio))
4551 * This one doesn't make too much sense ... We never try to
4552 * write to the rbio, and an application program where rbio and
4553 * wbio are separate couldn't even know what it should wait for.
4554 * However if we ever set s->rwstate incorrectly (so that we
4555 * have SSL_want_read(s) instead of SSL_want_write(s)) and rbio
4556 * and wbio *are* the same, this test works around that bug; so
4557 * it might be safer to keep it.
4559 return SSL_ERROR_WANT_WRITE;
4560 else if (BIO_should_io_special(bio)) {
4561 reason = BIO_get_retry_reason(bio);
4562 if (reason == BIO_RR_CONNECT)
4563 return SSL_ERROR_WANT_CONNECT;
4564 else if (reason == BIO_RR_ACCEPT)
4565 return SSL_ERROR_WANT_ACCEPT;
4567 return SSL_ERROR_SYSCALL; /* unknown */
4571 if (SSL_want_write(s)) {
4573 * Access wbio directly - in order to use the buffered bio if
4577 if (BIO_should_write(bio))
4578 return SSL_ERROR_WANT_WRITE;
4579 else if (BIO_should_read(bio))
4581 * See above (SSL_want_read(s) with BIO_should_write(bio))
4583 return SSL_ERROR_WANT_READ;
4584 else if (BIO_should_io_special(bio)) {
4585 reason = BIO_get_retry_reason(bio);
4586 if (reason == BIO_RR_CONNECT)
4587 return SSL_ERROR_WANT_CONNECT;
4588 else if (reason == BIO_RR_ACCEPT)
4589 return SSL_ERROR_WANT_ACCEPT;
4591 return SSL_ERROR_SYSCALL;
4596 if (SSL_want_x509_lookup(s))
4597 return SSL_ERROR_WANT_X509_LOOKUP;
4598 if (SSL_want_retry_verify(s))
4599 return SSL_ERROR_WANT_RETRY_VERIFY;
4600 if (SSL_want_async(s))
4601 return SSL_ERROR_WANT_ASYNC;
4602 if (SSL_want_async_job(s))
4603 return SSL_ERROR_WANT_ASYNC_JOB;
4604 if (SSL_want_client_hello_cb(s))
4605 return SSL_ERROR_WANT_CLIENT_HELLO_CB;
4607 if ((sc->shutdown & SSL_RECEIVED_SHUTDOWN) &&
4608 (sc->s3.warn_alert == SSL_AD_CLOSE_NOTIFY))
4609 return SSL_ERROR_ZERO_RETURN;
4611 return SSL_ERROR_SYSCALL;
4614 static int ssl_do_handshake_intern(void *vargs)
4616 struct ssl_async_args *args = (struct ssl_async_args *)vargs;
4618 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4623 return sc->handshake_func(s);
4626 int SSL_do_handshake(SSL *s)
4629 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4631 #ifndef OPENSSL_NO_QUIC
4633 return ossl_quic_do_handshake(s);
4636 if (sc->handshake_func == NULL) {
4637 ERR_raise(ERR_LIB_SSL, SSL_R_CONNECTION_TYPE_NOT_SET);
4641 ossl_statem_check_finish_init(sc, -1);
4643 s->method->ssl_renegotiate_check(s, 0);
4645 if (SSL_in_init(s) || SSL_in_before(s)) {
4646 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
4647 struct ssl_async_args args;
4649 memset(&args, 0, sizeof(args));
4652 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
4654 ret = sc->handshake_func(s);
4660 void SSL_set_accept_state(SSL *s)
4662 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4664 #ifndef OPENSSL_NO_QUIC
4666 ossl_quic_set_accept_state(s);
4673 ossl_statem_clear(sc);
4674 sc->handshake_func = s->method->ssl_accept;
4675 /* Ignore return value. Its a void public API function */
4676 clear_record_layer(sc);
4679 void SSL_set_connect_state(SSL *s)
4681 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4683 #ifndef OPENSSL_NO_QUIC
4685 ossl_quic_set_connect_state(s);
4692 ossl_statem_clear(sc);
4693 sc->handshake_func = s->method->ssl_connect;
4694 /* Ignore return value. Its a void public API function */
4695 clear_record_layer(sc);
4698 int ssl_undefined_function(SSL *s)
4700 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4704 int ssl_undefined_void_function(void)
4706 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4710 int ssl_undefined_const_function(const SSL *s)
4715 const SSL_METHOD *ssl_bad_method(int ver)
4717 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4721 const char *ssl_protocol_to_string(int version)
4725 case TLS1_3_VERSION:
4728 case TLS1_2_VERSION:
4731 case TLS1_1_VERSION:
4746 case DTLS1_2_VERSION:
4754 const char *SSL_get_version(const SSL *s)
4756 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4758 #ifndef OPENSSL_NO_QUIC
4759 /* We only support QUICv1 - so if its QUIC its QUICv1 */
4760 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
4767 return ssl_protocol_to_string(sc->version);
4770 __owur int SSL_get_handshake_rtt(const SSL *s, uint64_t *rtt)
4772 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4776 if (sc->ts_msg_write.t <= 0 || sc->ts_msg_read.t <= 0)
4777 return 0; /* data not (yet) available */
4778 if (sc->ts_msg_read.t < sc->ts_msg_write.t)
4781 *rtt = ossl_time2us(ossl_time_subtract(sc->ts_msg_read, sc->ts_msg_write));
4785 static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
4787 STACK_OF(X509_NAME) *sk;
4796 if ((sk = sk_X509_NAME_new_null()) == NULL)
4798 for (i = 0; i < sk_X509_NAME_num(src); i++) {
4799 xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
4801 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4804 if (sk_X509_NAME_insert(sk, xn, i) == 0) {
4806 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4815 SSL *SSL_dup(SSL *s)
4819 /* TODO(QUIC): Add a SSL_METHOD function for duplication */
4820 SSL_CONNECTION *retsc;
4821 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4826 /* If we're not quiescent, just up_ref! */
4827 if (!SSL_in_init(s) || !SSL_in_before(s)) {
4828 CRYPTO_UP_REF(&s->references, &i);
4833 * Otherwise, copy configuration state, and session if set.
4835 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
4837 if ((retsc = SSL_CONNECTION_FROM_SSL_ONLY(ret)) == NULL)
4840 if (sc->session != NULL) {
4842 * Arranges to share the same session via up_ref. This "copies"
4843 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4845 if (!SSL_copy_session_id(ret, s))
4849 * No session has been established yet, so we have to expect that
4850 * s->cert or ret->cert will be changed later -- they should not both
4851 * point to the same object, and thus we can't use
4852 * SSL_copy_session_id.
4854 if (!SSL_set_ssl_method(ret, s->method))
4857 if (sc->cert != NULL) {
4858 ssl_cert_free(retsc->cert);
4859 retsc->cert = ssl_cert_dup(sc->cert);
4860 if (retsc->cert == NULL)
4864 if (!SSL_set_session_id_context(ret, sc->sid_ctx,
4865 (int)sc->sid_ctx_length))
4869 if (!ssl_dane_dup(retsc, sc))
4871 retsc->version = sc->version;
4872 retsc->options = sc->options;
4873 retsc->min_proto_version = sc->min_proto_version;
4874 retsc->max_proto_version = sc->max_proto_version;
4875 retsc->mode = sc->mode;
4876 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
4877 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
4878 retsc->msg_callback = sc->msg_callback;
4879 retsc->msg_callback_arg = sc->msg_callback_arg;
4880 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
4881 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
4882 retsc->generate_session_id = sc->generate_session_id;
4884 SSL_set_info_callback(ret, SSL_get_info_callback(s));
4886 /* copy app data, a little dangerous perhaps */
4887 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
4890 retsc->server = sc->server;
4891 if (sc->handshake_func) {
4893 SSL_set_accept_state(ret);
4895 SSL_set_connect_state(ret);
4897 retsc->shutdown = sc->shutdown;
4898 retsc->hit = sc->hit;
4900 retsc->default_passwd_callback = sc->default_passwd_callback;
4901 retsc->default_passwd_callback_userdata = sc->default_passwd_callback_userdata;
4903 X509_VERIFY_PARAM_inherit(retsc->param, sc->param);
4905 /* dup the cipher_list and cipher_list_by_id stacks */
4906 if (sc->cipher_list != NULL) {
4907 if ((retsc->cipher_list = sk_SSL_CIPHER_dup(sc->cipher_list)) == NULL)
4910 if (sc->cipher_list_by_id != NULL)
4911 if ((retsc->cipher_list_by_id = sk_SSL_CIPHER_dup(sc->cipher_list_by_id))
4915 /* Dup the client_CA list */
4916 if (!dup_ca_names(&retsc->ca_names, sc->ca_names)
4917 || !dup_ca_names(&retsc->client_ca_names, sc->client_ca_names))
4927 X509 *SSL_get_certificate(const SSL *s)
4929 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4934 if (sc->cert != NULL)
4935 return sc->cert->key->x509;
4940 EVP_PKEY *SSL_get_privatekey(const SSL *s)
4942 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4947 if (sc->cert != NULL)
4948 return sc->cert->key->privatekey;
4953 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
4955 if (ctx->cert != NULL)
4956 return ctx->cert->key->x509;
4961 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
4963 if (ctx->cert != NULL)
4964 return ctx->cert->key->privatekey;
4969 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
4971 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4976 if ((sc->session != NULL) && (sc->session->cipher != NULL))
4977 return sc->session->cipher;
4981 const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
4983 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4988 return sc->s3.tmp.new_cipher;
4991 const COMP_METHOD *SSL_get_current_compression(const SSL *s)
4993 #ifndef OPENSSL_NO_COMP
4994 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
4999 return sc->rlayer.wrlmethod->get_compression(sc->rlayer.wrl);
5005 const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
5007 #ifndef OPENSSL_NO_COMP
5008 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5013 return sc->rlayer.rrlmethod->get_compression(sc->rlayer.rrl);
5019 int ssl_init_wbio_buffer(SSL_CONNECTION *s)
5023 if (s->bbio != NULL) {
5024 /* Already buffered. */
5028 bbio = BIO_new(BIO_f_buffer());
5029 if (bbio == NULL || BIO_set_read_buffer_size(bbio, 1) <= 0) {
5031 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
5035 s->wbio = BIO_push(bbio, s->wbio);
5037 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5042 int ssl_free_wbio_buffer(SSL_CONNECTION *s)
5044 /* callers ensure s is never null */
5045 if (s->bbio == NULL)
5048 s->wbio = BIO_pop(s->wbio);
5049 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5057 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
5059 ctx->quiet_shutdown = mode;
5062 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
5064 return ctx->quiet_shutdown;
5067 void SSL_set_quiet_shutdown(SSL *s, int mode)
5069 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5071 /* TODO(QUIC): Do we want this for QUIC? */
5075 sc->quiet_shutdown = mode;
5078 int SSL_get_quiet_shutdown(const SSL *s)
5080 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5082 /* TODO(QUIC): Do we want this for QUIC? */
5086 return sc->quiet_shutdown;
5089 void SSL_set_shutdown(SSL *s, int mode)
5091 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5093 /* TODO(QUIC): Do we want this for QUIC? */
5097 sc->shutdown = mode;
5100 int SSL_get_shutdown(const SSL *s)
5102 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5104 /* TODO(QUIC): Do we want this for QUIC? */
5108 return sc->shutdown;
5111 int SSL_version(const SSL *s)
5113 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5115 #ifndef OPENSSL_NO_QUIC
5116 /* We only support QUICv1 - so if its QUIC its QUICv1 */
5117 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
5118 return OSSL_QUIC1_VERSION;
5120 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
5127 int SSL_client_version(const SSL *s)
5129 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5131 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
5135 return sc->client_version;
5138 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
5143 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
5146 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
5148 /* TODO(QUIC): Do we need this for QUIC support? */
5152 if (ssl->ctx == ctx)
5155 ctx = sc->session_ctx;
5156 new_cert = ssl_cert_dup(ctx->cert);
5157 if (new_cert == NULL) {
5161 if (!custom_exts_copy_flags(&new_cert->custext, &sc->cert->custext)) {
5162 ssl_cert_free(new_cert);
5166 ssl_cert_free(sc->cert);
5167 sc->cert = new_cert;
5170 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
5171 * so setter APIs must prevent invalid lengths from entering the system.
5173 if (!ossl_assert(sc->sid_ctx_length <= sizeof(sc->sid_ctx)))
5177 * If the session ID context matches that of the parent SSL_CTX,
5178 * inherit it from the new SSL_CTX as well. If however the context does
5179 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
5180 * leave it unchanged.
5182 if ((ssl->ctx != NULL) &&
5183 (sc->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
5184 (memcmp(sc->sid_ctx, ssl->ctx->sid_ctx, sc->sid_ctx_length) == 0)) {
5185 sc->sid_ctx_length = ctx->sid_ctx_length;
5186 memcpy(&sc->sid_ctx, &ctx->sid_ctx, sizeof(sc->sid_ctx));
5189 SSL_CTX_up_ref(ctx);
5190 SSL_CTX_free(ssl->ctx); /* decrement reference count */
5196 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
5198 return X509_STORE_set_default_paths_ex(ctx->cert_store, ctx->libctx,
5202 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
5204 X509_LOOKUP *lookup;
5206 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
5210 /* We ignore errors, in case the directory doesn't exist */
5213 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
5220 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
5222 X509_LOOKUP *lookup;
5224 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
5228 /* We ignore errors, in case the file doesn't exist */
5231 X509_LOOKUP_load_file_ex(lookup, NULL, X509_FILETYPE_DEFAULT, ctx->libctx,
5239 int SSL_CTX_set_default_verify_store(SSL_CTX *ctx)
5241 X509_LOOKUP *lookup;
5243 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_store());
5247 /* We ignore errors, in case the directory doesn't exist */
5250 X509_LOOKUP_add_store_ex(lookup, NULL, ctx->libctx, ctx->propq);
5257 int SSL_CTX_load_verify_file(SSL_CTX *ctx, const char *CAfile)
5259 return X509_STORE_load_file_ex(ctx->cert_store, CAfile, ctx->libctx,
5263 int SSL_CTX_load_verify_dir(SSL_CTX *ctx, const char *CApath)
5265 return X509_STORE_load_path(ctx->cert_store, CApath);
5268 int SSL_CTX_load_verify_store(SSL_CTX *ctx, const char *CAstore)
5270 return X509_STORE_load_store_ex(ctx->cert_store, CAstore, ctx->libctx,
5274 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
5277 if (CAfile == NULL && CApath == NULL)
5279 if (CAfile != NULL && !SSL_CTX_load_verify_file(ctx, CAfile))
5281 if (CApath != NULL && !SSL_CTX_load_verify_dir(ctx, CApath))
5286 void SSL_set_info_callback(SSL *ssl,
5287 void (*cb) (const SSL *ssl, int type, int val))
5289 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5294 sc->info_callback = cb;
5298 * One compiler (Diab DCC) doesn't like argument names in returned function
5301 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
5304 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5309 return sc->info_callback;
5312 void SSL_set_verify_result(SSL *ssl, long arg)
5314 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5319 sc->verify_result = arg;
5322 long SSL_get_verify_result(const SSL *ssl)
5324 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5329 return sc->verify_result;
5332 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
5334 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5340 return sizeof(sc->s3.client_random);
5341 if (outlen > sizeof(sc->s3.client_random))
5342 outlen = sizeof(sc->s3.client_random);
5343 memcpy(out, sc->s3.client_random, outlen);
5347 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
5349 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5355 return sizeof(sc->s3.server_random);
5356 if (outlen > sizeof(sc->s3.server_random))
5357 outlen = sizeof(sc->s3.server_random);
5358 memcpy(out, sc->s3.server_random, outlen);
5362 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
5363 unsigned char *out, size_t outlen)
5366 return session->master_key_length;
5367 if (outlen > session->master_key_length)
5368 outlen = session->master_key_length;
5369 memcpy(out, session->master_key, outlen);
5373 int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
5376 if (len > sizeof(sess->master_key))
5379 memcpy(sess->master_key, in, len);
5380 sess->master_key_length = len;
5385 int SSL_set_ex_data(SSL *s, int idx, void *arg)
5387 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5390 void *SSL_get_ex_data(const SSL *s, int idx)
5392 return CRYPTO_get_ex_data(&s->ex_data, idx);
5395 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
5397 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5400 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
5402 return CRYPTO_get_ex_data(&s->ex_data, idx);
5405 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
5407 return ctx->cert_store;
5410 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
5412 X509_STORE_free(ctx->cert_store);
5413 ctx->cert_store = store;
5416 void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
5419 X509_STORE_up_ref(store);
5420 SSL_CTX_set_cert_store(ctx, store);
5423 int SSL_want(const SSL *s)
5425 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5433 #ifndef OPENSSL_NO_PSK
5434 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
5436 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5437 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5440 OPENSSL_free(ctx->cert->psk_identity_hint);
5441 if (identity_hint != NULL) {
5442 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5443 if (ctx->cert->psk_identity_hint == NULL)
5446 ctx->cert->psk_identity_hint = NULL;
5450 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
5452 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5457 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5458 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5461 OPENSSL_free(sc->cert->psk_identity_hint);
5462 if (identity_hint != NULL) {
5463 sc->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5464 if (sc->cert->psk_identity_hint == NULL)
5467 sc->cert->psk_identity_hint = NULL;
5471 const char *SSL_get_psk_identity_hint(const SSL *s)
5473 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5475 if (sc == NULL || sc->session == NULL)
5478 return sc->session->psk_identity_hint;
5481 const char *SSL_get_psk_identity(const SSL *s)
5483 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5485 if (sc == NULL || sc->session == NULL)
5488 return sc->session->psk_identity;
5491 void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
5493 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5498 sc->psk_client_callback = cb;
5501 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
5503 ctx->psk_client_callback = cb;
5506 void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
5508 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5513 sc->psk_server_callback = cb;
5516 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
5518 ctx->psk_server_callback = cb;
5522 void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
5524 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5529 sc->psk_find_session_cb = cb;
5532 void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
5533 SSL_psk_find_session_cb_func cb)
5535 ctx->psk_find_session_cb = cb;
5538 void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
5540 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5545 sc->psk_use_session_cb = cb;
5548 void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
5549 SSL_psk_use_session_cb_func cb)
5551 ctx->psk_use_session_cb = cb;
5554 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
5555 void (*cb) (int write_p, int version,
5556 int content_type, const void *buf,
5557 size_t len, SSL *ssl, void *arg))
5559 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5562 void SSL_set_msg_callback(SSL *ssl,
5563 void (*cb) (int write_p, int version,
5564 int content_type, const void *buf,
5565 size_t len, SSL *ssl, void *arg))
5567 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5570 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
5571 int (*cb) (SSL *ssl,
5575 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5576 (void (*)(void))cb);
5579 void SSL_set_not_resumable_session_callback(SSL *ssl,
5580 int (*cb) (SSL *ssl,
5581 int is_forward_secure))
5583 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5584 (void (*)(void))cb);
5587 void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
5588 size_t (*cb) (SSL *ssl, int type,
5589 size_t len, void *arg))
5591 ctx->record_padding_cb = cb;
5594 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
5596 ctx->record_padding_arg = arg;
5599 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
5601 return ctx->record_padding_arg;
5604 int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
5606 /* block size of 0 or 1 is basically no padding */
5607 if (block_size == 1)
5608 ctx->block_padding = 0;
5609 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5610 ctx->block_padding = block_size;
5616 int SSL_set_record_padding_callback(SSL *ssl,
5617 size_t (*cb) (SSL *ssl, int type,
5618 size_t len, void *arg))
5621 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5626 b = SSL_get_wbio(ssl);
5627 if (b == NULL || !BIO_get_ktls_send(b)) {
5628 sc->rlayer.record_padding_cb = cb;
5634 void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
5636 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5641 sc->rlayer.record_padding_arg = arg;
5644 void *SSL_get_record_padding_callback_arg(const SSL *ssl)
5646 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5651 return sc->rlayer.record_padding_arg;
5654 int SSL_set_block_padding(SSL *ssl, size_t block_size)
5656 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5661 /* block size of 0 or 1 is basically no padding */
5662 if (block_size == 1)
5663 sc->rlayer.block_padding = 0;
5664 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5665 sc->rlayer.block_padding = block_size;
5671 int SSL_set_num_tickets(SSL *s, size_t num_tickets)
5673 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5678 sc->num_tickets = num_tickets;
5683 size_t SSL_get_num_tickets(const SSL *s)
5685 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5690 return sc->num_tickets;
5693 int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
5695 ctx->num_tickets = num_tickets;
5700 size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
5702 return ctx->num_tickets;
5705 /* Retrieve handshake hashes */
5706 int ssl_handshake_hash(SSL_CONNECTION *s,
5707 unsigned char *out, size_t outlen,
5710 EVP_MD_CTX *ctx = NULL;
5711 EVP_MD_CTX *hdgst = s->s3.handshake_dgst;
5712 int hashleni = EVP_MD_CTX_get_size(hdgst);
5715 if (hashleni < 0 || (size_t)hashleni > outlen) {
5716 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5720 ctx = EVP_MD_CTX_new();
5722 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5726 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
5727 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
5728 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5732 *hashlen = hashleni;
5736 EVP_MD_CTX_free(ctx);
5740 int SSL_session_reused(const SSL *s)
5742 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5750 int SSL_is_server(const SSL *s)
5752 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5760 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
5761 void SSL_set_debug(SSL *s, int debug)
5763 /* Old function was do-nothing anyway... */
5769 void SSL_set_security_level(SSL *s, int level)
5771 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5776 sc->cert->sec_level = level;
5779 int SSL_get_security_level(const SSL *s)
5781 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5786 return sc->cert->sec_level;
5789 void SSL_set_security_callback(SSL *s,
5790 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5791 int op, int bits, int nid,
5792 void *other, void *ex))
5794 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5799 sc->cert->sec_cb = cb;
5802 int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
5803 const SSL_CTX *ctx, int op,
5804 int bits, int nid, void *other,
5806 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5811 return sc->cert->sec_cb;
5814 void SSL_set0_security_ex_data(SSL *s, void *ex)
5816 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5821 sc->cert->sec_ex = ex;
5824 void *SSL_get0_security_ex_data(const SSL *s)
5826 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5831 return sc->cert->sec_ex;
5834 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
5836 ctx->cert->sec_level = level;
5839 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
5841 return ctx->cert->sec_level;
5844 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
5845 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5846 int op, int bits, int nid,
5847 void *other, void *ex))
5849 ctx->cert->sec_cb = cb;
5852 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
5858 return ctx->cert->sec_cb;
5861 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
5863 ctx->cert->sec_ex = ex;
5866 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
5868 return ctx->cert->sec_ex;
5871 uint64_t SSL_CTX_get_options(const SSL_CTX *ctx)
5873 return ctx->options;
5876 uint64_t SSL_get_options(const SSL *s)
5878 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5886 uint64_t SSL_CTX_set_options(SSL_CTX *ctx, uint64_t op)
5888 return ctx->options |= op;
5891 uint64_t SSL_set_options(SSL *s, uint64_t op)
5894 OSSL_PARAM options[2], *opts = options;
5896 #ifndef OPENSSL_NO_QUIC
5897 if (IS_QUIC(s) && ossl_quic_set_ssl_op(s, op))
5898 /* Handled by QUIC, return as set */
5902 sc = SSL_CONNECTION_FROM_SSL(s);
5908 *opts++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS,
5910 *opts = OSSL_PARAM_construct_end();
5912 /* Ignore return value */
5913 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
5918 uint64_t SSL_CTX_clear_options(SSL_CTX *ctx, uint64_t op)
5920 return ctx->options &= ~op;
5923 uint64_t SSL_clear_options(SSL *s, uint64_t op)
5925 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5930 return sc->options &= ~op;
5933 STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
5935 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5940 return sc->verified_chain;
5943 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
5945 #ifndef OPENSSL_NO_CT
5948 * Moves SCTs from the |src| stack to the |dst| stack.
5949 * The source of each SCT will be set to |origin|.
5950 * If |dst| points to a NULL pointer, a new stack will be created and owned by
5952 * Returns the number of SCTs moved, or a negative integer if an error occurs.
5954 static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
5955 sct_source_t origin)
5961 *dst = sk_SCT_new_null();
5963 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
5968 while ((sct = sk_SCT_pop(src)) != NULL) {
5969 if (SCT_set_source(sct, origin) != 1)
5972 if (sk_SCT_push(*dst, sct) <= 0)
5980 sk_SCT_push(src, sct); /* Put the SCT back */
5985 * Look for data collected during ServerHello and parse if found.
5986 * Returns the number of SCTs extracted.
5988 static int ct_extract_tls_extension_scts(SSL_CONNECTION *s)
5990 int scts_extracted = 0;
5992 if (s->ext.scts != NULL) {
5993 const unsigned char *p = s->ext.scts;
5994 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
5996 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
5998 SCT_LIST_free(scts);
6001 return scts_extracted;
6005 * Checks for an OCSP response and then attempts to extract any SCTs found if it
6006 * contains an SCT X509 extension. They will be stored in |s->scts|.
6008 * - The number of SCTs extracted, assuming an OCSP response exists.
6009 * - 0 if no OCSP response exists or it contains no SCTs.
6010 * - A negative integer if an error occurs.
6012 static int ct_extract_ocsp_response_scts(SSL_CONNECTION *s)
6014 # ifndef OPENSSL_NO_OCSP
6015 int scts_extracted = 0;
6016 const unsigned char *p;
6017 OCSP_BASICRESP *br = NULL;
6018 OCSP_RESPONSE *rsp = NULL;
6019 STACK_OF(SCT) *scts = NULL;
6022 if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
6025 p = s->ext.ocsp.resp;
6026 rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
6030 br = OCSP_response_get1_basic(rsp);
6034 for (i = 0; i < OCSP_resp_count(br); ++i) {
6035 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
6041 OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
6043 ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
6044 if (scts_extracted < 0)
6048 SCT_LIST_free(scts);
6049 OCSP_BASICRESP_free(br);
6050 OCSP_RESPONSE_free(rsp);
6051 return scts_extracted;
6053 /* Behave as if no OCSP response exists */
6059 * Attempts to extract SCTs from the peer certificate.
6060 * Return the number of SCTs extracted, or a negative integer if an error
6063 static int ct_extract_x509v3_extension_scts(SSL_CONNECTION *s)
6065 int scts_extracted = 0;
6066 X509 *cert = s->session != NULL ? s->session->peer : NULL;
6069 STACK_OF(SCT) *scts =
6070 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
6073 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
6075 SCT_LIST_free(scts);
6078 return scts_extracted;
6082 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
6083 * response (if it exists) and X509v3 extensions in the certificate.
6084 * Returns NULL if an error occurs.
6086 const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
6088 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6093 if (!sc->scts_parsed) {
6094 if (ct_extract_tls_extension_scts(sc) < 0 ||
6095 ct_extract_ocsp_response_scts(sc) < 0 ||
6096 ct_extract_x509v3_extension_scts(sc) < 0)
6099 sc->scts_parsed = 1;
6106 static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx,
6107 const STACK_OF(SCT) *scts, void *unused_arg)
6112 static int ct_strict(const CT_POLICY_EVAL_CTX * ctx,
6113 const STACK_OF(SCT) *scts, void *unused_arg)
6115 int count = scts != NULL ? sk_SCT_num(scts) : 0;
6118 for (i = 0; i < count; ++i) {
6119 SCT *sct = sk_SCT_value(scts, i);
6120 int status = SCT_get_validation_status(sct);
6122 if (status == SCT_VALIDATION_STATUS_VALID)
6125 ERR_raise(ERR_LIB_SSL, SSL_R_NO_VALID_SCTS);
6129 int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
6132 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6138 * Since code exists that uses the custom extension handler for CT, look
6139 * for this and throw an error if they have already registered to use CT.
6141 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
6142 TLSEXT_TYPE_signed_certificate_timestamp))
6144 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
6148 if (callback != NULL) {
6150 * If we are validating CT, then we MUST accept SCTs served via OCSP
6152 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
6156 sc->ct_validation_callback = callback;
6157 sc->ct_validation_callback_arg = arg;
6162 int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
6163 ssl_ct_validation_cb callback, void *arg)
6166 * Since code exists that uses the custom extension handler for CT, look for
6167 * this and throw an error if they have already registered to use CT.
6169 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
6170 TLSEXT_TYPE_signed_certificate_timestamp))
6172 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
6176 ctx->ct_validation_callback = callback;
6177 ctx->ct_validation_callback_arg = arg;
6181 int SSL_ct_is_enabled(const SSL *s)
6183 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6188 return sc->ct_validation_callback != NULL;
6191 int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
6193 return ctx->ct_validation_callback != NULL;
6196 int ssl_validate_ct(SSL_CONNECTION *s)
6199 X509 *cert = s->session != NULL ? s->session->peer : NULL;
6201 SSL_DANE *dane = &s->dane;
6202 CT_POLICY_EVAL_CTX *ctx = NULL;
6203 const STACK_OF(SCT) *scts;
6206 * If no callback is set, the peer is anonymous, or its chain is invalid,
6207 * skip SCT validation - just return success. Applications that continue
6208 * handshakes without certificates, with unverified chains, or pinned leaf
6209 * certificates are outside the scope of the WebPKI and CT.
6211 * The above exclusions notwithstanding the vast majority of peers will
6212 * have rather ordinary certificate chains validated by typical
6213 * applications that perform certificate verification and therefore will
6214 * process SCTs when enabled.
6216 if (s->ct_validation_callback == NULL || cert == NULL ||
6217 s->verify_result != X509_V_OK ||
6218 s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
6222 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
6223 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
6225 if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
6226 switch (dane->mtlsa->usage) {
6227 case DANETLS_USAGE_DANE_TA:
6228 case DANETLS_USAGE_DANE_EE:
6233 ctx = CT_POLICY_EVAL_CTX_new_ex(SSL_CONNECTION_GET_CTX(s)->libctx,
6234 SSL_CONNECTION_GET_CTX(s)->propq);
6236 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CT_LIB);
6240 issuer = sk_X509_value(s->verified_chain, 1);
6241 CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
6242 CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
6243 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx,
6244 SSL_CONNECTION_GET_CTX(s)->ctlog_store);
6245 CT_POLICY_EVAL_CTX_set_time(
6246 ctx, (uint64_t)SSL_SESSION_get_time(s->session) * 1000);
6248 scts = SSL_get0_peer_scts(SSL_CONNECTION_GET_SSL(s));
6251 * This function returns success (> 0) only when all the SCTs are valid, 0
6252 * when some are invalid, and < 0 on various internal errors (out of
6253 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
6254 * reason to abort the handshake, that decision is up to the callback.
6255 * Therefore, we error out only in the unexpected case that the return
6256 * value is negative.
6258 * XXX: One might well argue that the return value of this function is an
6259 * unfortunate design choice. Its job is only to determine the validation
6260 * status of each of the provided SCTs. So long as it correctly separates
6261 * the wheat from the chaff it should return success. Failure in this case
6262 * ought to correspond to an inability to carry out its duties.
6264 if (SCT_LIST_validate(scts, ctx) < 0) {
6265 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_SCT_VERIFICATION_FAILED);
6269 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
6271 ret = 0; /* This function returns 0 on failure */
6273 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_CALLBACK_FAILED);
6276 CT_POLICY_EVAL_CTX_free(ctx);
6278 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
6279 * failure return code here. Also the application may wish the complete
6280 * the handshake, and then disconnect cleanly at a higher layer, after
6281 * checking the verification status of the completed connection.
6283 * We therefore force a certificate verification failure which will be
6284 * visible via SSL_get_verify_result() and cached as part of any resumed
6287 * Note: the permissive callback is for information gathering only, always
6288 * returns success, and does not affect verification status. Only the
6289 * strict callback or a custom application-specified callback can trigger
6290 * connection failure or record a verification error.
6293 s->verify_result = X509_V_ERR_NO_VALID_SCTS;
6297 int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
6299 switch (validation_mode) {
6301 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6303 case SSL_CT_VALIDATION_PERMISSIVE:
6304 return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
6305 case SSL_CT_VALIDATION_STRICT:
6306 return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
6310 int SSL_enable_ct(SSL *s, int validation_mode)
6312 switch (validation_mode) {
6314 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6316 case SSL_CT_VALIDATION_PERMISSIVE:
6317 return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
6318 case SSL_CT_VALIDATION_STRICT:
6319 return SSL_set_ct_validation_callback(s, ct_strict, NULL);
6323 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
6325 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
6328 int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
6330 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
6333 void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs)
6335 CTLOG_STORE_free(ctx->ctlog_store);
6336 ctx->ctlog_store = logs;
6339 const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
6341 return ctx->ctlog_store;
6344 #endif /* OPENSSL_NO_CT */
6346 void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
6349 c->client_hello_cb = cb;
6350 c->client_hello_cb_arg = arg;
6353 int SSL_client_hello_isv2(SSL *s)
6355 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6360 if (sc->clienthello == NULL)
6362 return sc->clienthello->isv2;
6365 unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
6367 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6372 if (sc->clienthello == NULL)
6374 return sc->clienthello->legacy_version;
6377 size_t SSL_client_hello_get0_random(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->random;
6388 return SSL3_RANDOM_SIZE;
6391 size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
6393 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6398 if (sc->clienthello == NULL)
6401 *out = sc->clienthello->session_id;
6402 return sc->clienthello->session_id_len;
6405 size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
6407 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6412 if (sc->clienthello == NULL)
6415 *out = PACKET_data(&sc->clienthello->ciphersuites);
6416 return PACKET_remaining(&sc->clienthello->ciphersuites);
6419 size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
6421 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6426 if (sc->clienthello == NULL)
6429 *out = sc->clienthello->compressions;
6430 return sc->clienthello->compressions_len;
6433 int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
6438 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6443 if (sc->clienthello == NULL || out == NULL || outlen == NULL)
6445 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6446 ext = sc->clienthello->pre_proc_exts + i;
6455 if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL)
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 present[ext->received_order] = ext->type;
6469 OPENSSL_free(present);
6473 int SSL_client_hello_get_extension_order(SSL *s, uint16_t *exts, size_t *num_exts)
6477 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6482 if (sc->clienthello == NULL || num_exts == NULL)
6484 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6485 ext = sc->clienthello->pre_proc_exts + i;
6497 if (*num_exts < num)
6499 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6500 ext = sc->clienthello->pre_proc_exts + i;
6502 if (ext->received_order >= num)
6504 exts[ext->received_order] = ext->type;
6511 int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
6516 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6521 if (sc->clienthello == NULL)
6523 for (i = 0; i < sc->clienthello->pre_proc_exts_len; ++i) {
6524 r = sc->clienthello->pre_proc_exts + i;
6525 if (r->present && r->type == type) {
6527 *out = PACKET_data(&r->data);
6529 *outlen = PACKET_remaining(&r->data);
6536 int SSL_free_buffers(SSL *ssl)
6539 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6546 return rl->rrlmethod->free_buffers(rl->rrl)
6547 && rl->wrlmethod->free_buffers(rl->wrl);
6550 int SSL_alloc_buffers(SSL *ssl)
6553 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6560 return rl->rrlmethod->alloc_buffers(rl->rrl)
6561 && rl->wrlmethod->alloc_buffers(rl->wrl);
6564 void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
6566 ctx->keylog_callback = cb;
6569 SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
6571 return ctx->keylog_callback;
6574 static int nss_keylog_int(const char *prefix,
6576 const uint8_t *parameter_1,
6577 size_t parameter_1_len,
6578 const uint8_t *parameter_2,
6579 size_t parameter_2_len)
6582 char *cursor = NULL;
6586 SSL_CTX *sctx = SSL_CONNECTION_GET_CTX(sc);
6588 if (sctx->keylog_callback == NULL)
6592 * Our output buffer will contain the following strings, rendered with
6593 * space characters in between, terminated by a NULL character: first the
6594 * prefix, then the first parameter, then the second parameter. The
6595 * meaning of each parameter depends on the specific key material being
6596 * logged. Note that the first and second parameters are encoded in
6597 * hexadecimal, so we need a buffer that is twice their lengths.
6599 prefix_len = strlen(prefix);
6600 out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
6601 if ((out = cursor = OPENSSL_malloc(out_len)) == NULL)
6604 strcpy(cursor, prefix);
6605 cursor += prefix_len;
6608 for (i = 0; i < parameter_1_len; i++) {
6609 sprintf(cursor, "%02x", parameter_1[i]);
6614 for (i = 0; i < parameter_2_len; i++) {
6615 sprintf(cursor, "%02x", parameter_2[i]);
6620 sctx->keylog_callback(SSL_CONNECTION_GET_SSL(sc), (const char *)out);
6621 OPENSSL_clear_free(out, out_len);
6626 int ssl_log_rsa_client_key_exchange(SSL_CONNECTION *sc,
6627 const uint8_t *encrypted_premaster,
6628 size_t encrypted_premaster_len,
6629 const uint8_t *premaster,
6630 size_t premaster_len)
6632 if (encrypted_premaster_len < 8) {
6633 SSLfatal(sc, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6637 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
6638 return nss_keylog_int("RSA",
6640 encrypted_premaster,
6646 int ssl_log_secret(SSL_CONNECTION *sc,
6648 const uint8_t *secret,
6651 return nss_keylog_int(label,
6653 sc->s3.client_random,
6659 #define SSLV2_CIPHER_LEN 3
6661 int ssl_cache_cipherlist(SSL_CONNECTION *s, PACKET *cipher_suites, int sslv2format)
6665 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6667 if (PACKET_remaining(cipher_suites) == 0) {
6668 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6672 if (PACKET_remaining(cipher_suites) % n != 0) {
6673 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6677 OPENSSL_free(s->s3.tmp.ciphers_raw);
6678 s->s3.tmp.ciphers_raw = NULL;
6679 s->s3.tmp.ciphers_rawlen = 0;
6682 size_t numciphers = PACKET_remaining(cipher_suites) / n;
6683 PACKET sslv2ciphers = *cipher_suites;
6684 unsigned int leadbyte;
6688 * We store the raw ciphers list in SSLv3+ format so we need to do some
6689 * preprocessing to convert the list first. If there are any SSLv2 only
6690 * ciphersuites with a non-zero leading byte then we are going to
6691 * slightly over allocate because we won't store those. But that isn't a
6694 raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
6695 s->s3.tmp.ciphers_raw = raw;
6697 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6700 for (s->s3.tmp.ciphers_rawlen = 0;
6701 PACKET_remaining(&sslv2ciphers) > 0;
6702 raw += TLS_CIPHER_LEN) {
6703 if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
6705 && !PACKET_copy_bytes(&sslv2ciphers, raw,
6708 && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
6709 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_PACKET);
6710 OPENSSL_free(s->s3.tmp.ciphers_raw);
6711 s->s3.tmp.ciphers_raw = NULL;
6712 s->s3.tmp.ciphers_rawlen = 0;
6716 s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN;
6718 } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw,
6719 &s->s3.tmp.ciphers_rawlen)) {
6720 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6726 int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
6727 int isv2format, STACK_OF(SSL_CIPHER) **sk,
6728 STACK_OF(SSL_CIPHER) **scsvs)
6731 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6736 if (!PACKET_buf_init(&pkt, bytes, len))
6738 return ossl_bytes_to_cipher_list(sc, &pkt, sk, scsvs, isv2format, 0);
6741 int ossl_bytes_to_cipher_list(SSL_CONNECTION *s, PACKET *cipher_suites,
6742 STACK_OF(SSL_CIPHER) **skp,
6743 STACK_OF(SSL_CIPHER) **scsvs_out,
6744 int sslv2format, int fatal)
6746 const SSL_CIPHER *c;
6747 STACK_OF(SSL_CIPHER) *sk = NULL;
6748 STACK_OF(SSL_CIPHER) *scsvs = NULL;
6750 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
6751 unsigned char cipher[SSLV2_CIPHER_LEN];
6753 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6755 if (PACKET_remaining(cipher_suites) == 0) {
6757 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6759 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHERS_SPECIFIED);
6763 if (PACKET_remaining(cipher_suites) % n != 0) {
6765 SSLfatal(s, SSL_AD_DECODE_ERROR,
6766 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6768 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6772 sk = sk_SSL_CIPHER_new_null();
6773 scsvs = sk_SSL_CIPHER_new_null();
6774 if (sk == NULL || scsvs == NULL) {
6776 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6778 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6782 while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
6784 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
6785 * first byte set to zero, while true SSLv2 ciphers have a non-zero
6786 * first byte. We don't support any true SSLv2 ciphers, so skip them.
6788 if (sslv2format && cipher[0] != '\0')
6791 /* For SSLv2-compat, ignore leading 0-byte. */
6792 c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
6794 if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
6795 (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
6797 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6799 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6804 if (PACKET_remaining(cipher_suites) > 0) {
6806 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_LENGTH);
6808 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
6815 sk_SSL_CIPHER_free(sk);
6816 if (scsvs_out != NULL)
6819 sk_SSL_CIPHER_free(scsvs);
6822 sk_SSL_CIPHER_free(sk);
6823 sk_SSL_CIPHER_free(scsvs);
6827 int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
6829 ctx->max_early_data = max_early_data;
6834 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
6836 return ctx->max_early_data;
6839 int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
6841 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6846 sc->max_early_data = max_early_data;
6851 uint32_t SSL_get_max_early_data(const SSL *s)
6853 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6858 return sc->max_early_data;
6861 int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
6863 ctx->recv_max_early_data = recv_max_early_data;
6868 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
6870 return ctx->recv_max_early_data;
6873 int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
6875 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6880 sc->recv_max_early_data = recv_max_early_data;
6885 uint32_t SSL_get_recv_max_early_data(const SSL *s)
6887 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6892 return sc->recv_max_early_data;
6895 __owur unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION *sc)
6897 /* Return any active Max Fragment Len extension */
6898 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session))
6899 return GET_MAX_FRAGMENT_LENGTH(sc->session);
6901 /* return current SSL connection setting */
6902 return sc->max_send_fragment;
6905 __owur unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION *sc)
6907 /* Return a value regarding an active Max Fragment Len extension */
6908 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session)
6909 && sc->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(sc->session))
6910 return GET_MAX_FRAGMENT_LENGTH(sc->session);
6912 /* else limit |split_send_fragment| to current |max_send_fragment| */
6913 if (sc->split_send_fragment > sc->max_send_fragment)
6914 return sc->max_send_fragment;
6916 /* return current SSL connection setting */
6917 return sc->split_send_fragment;
6920 int SSL_stateless(SSL *s)
6923 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6925 /* TODO(QUIC): This will need further work. */
6929 /* Ensure there is no state left over from a previous invocation */
6935 sc->s3.flags |= TLS1_FLAGS_STATELESS;
6936 ret = SSL_accept(s);
6937 sc->s3.flags &= ~TLS1_FLAGS_STATELESS;
6939 if (ret > 0 && sc->ext.cookieok)
6942 if (sc->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(sc))
6948 void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
6950 ctx->pha_enabled = val;
6953 void SSL_set_post_handshake_auth(SSL *ssl, int val)
6955 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6960 sc->pha_enabled = val;
6963 int SSL_verify_client_post_handshake(SSL *ssl)
6965 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6970 if (!SSL_CONNECTION_IS_TLS13(sc)) {
6971 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
6975 ERR_raise(ERR_LIB_SSL, SSL_R_NOT_SERVER);
6979 if (!SSL_is_init_finished(ssl)) {
6980 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
6984 switch (sc->post_handshake_auth) {
6986 ERR_raise(ERR_LIB_SSL, SSL_R_EXTENSION_NOT_RECEIVED);
6989 case SSL_PHA_EXT_SENT:
6990 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
6992 case SSL_PHA_EXT_RECEIVED:
6994 case SSL_PHA_REQUEST_PENDING:
6995 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_PENDING);
6997 case SSL_PHA_REQUESTED:
6998 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_SENT);
7002 sc->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
7004 /* checks verify_mode and algorithm_auth */
7005 if (!send_certificate_request(sc)) {
7006 sc->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
7007 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CONFIG);
7011 ossl_statem_set_in_init(sc, 1);
7015 int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
7016 SSL_CTX_generate_session_ticket_fn gen_cb,
7017 SSL_CTX_decrypt_session_ticket_fn dec_cb,
7020 ctx->generate_ticket_cb = gen_cb;
7021 ctx->decrypt_ticket_cb = dec_cb;
7022 ctx->ticket_cb_data = arg;
7026 void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
7027 SSL_allow_early_data_cb_fn cb,
7030 ctx->allow_early_data_cb = cb;
7031 ctx->allow_early_data_cb_data = arg;
7034 void SSL_set_allow_early_data_cb(SSL *s,
7035 SSL_allow_early_data_cb_fn cb,
7038 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7043 sc->allow_early_data_cb = cb;
7044 sc->allow_early_data_cb_data = arg;
7047 const EVP_CIPHER *ssl_evp_cipher_fetch(OSSL_LIB_CTX *libctx,
7049 const char *properties)
7051 const EVP_CIPHER *ciph;
7053 ciph = tls_get_cipher_from_engine(nid);
7058 * If there is no engine cipher then we do an explicit fetch. This may fail
7059 * and that could be ok
7062 ciph = EVP_CIPHER_fetch(libctx, OBJ_nid2sn(nid), properties);
7068 int ssl_evp_cipher_up_ref(const EVP_CIPHER *cipher)
7070 /* Don't up-ref an implicit EVP_CIPHER */
7071 if (EVP_CIPHER_get0_provider(cipher) == NULL)
7075 * The cipher was explicitly fetched and therefore it is safe to cast
7078 return EVP_CIPHER_up_ref((EVP_CIPHER *)cipher);
7081 void ssl_evp_cipher_free(const EVP_CIPHER *cipher)
7086 if (EVP_CIPHER_get0_provider(cipher) != NULL) {
7088 * The cipher was explicitly fetched and therefore it is safe to cast
7091 EVP_CIPHER_free((EVP_CIPHER *)cipher);
7095 const EVP_MD *ssl_evp_md_fetch(OSSL_LIB_CTX *libctx,
7097 const char *properties)
7101 md = tls_get_digest_from_engine(nid);
7105 /* Otherwise we do an explicit fetch */
7107 md = EVP_MD_fetch(libctx, OBJ_nid2sn(nid), properties);
7112 int ssl_evp_md_up_ref(const EVP_MD *md)
7114 /* Don't up-ref an implicit EVP_MD */
7115 if (EVP_MD_get0_provider(md) == NULL)
7119 * The digest was explicitly fetched and therefore it is safe to cast
7122 return EVP_MD_up_ref((EVP_MD *)md);
7125 void ssl_evp_md_free(const EVP_MD *md)
7130 if (EVP_MD_get0_provider(md) != NULL) {
7132 * The digest was explicitly fetched and therefore it is safe to cast
7135 EVP_MD_free((EVP_MD *)md);
7139 int SSL_set0_tmp_dh_pkey(SSL *s, EVP_PKEY *dhpkey)
7141 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7146 if (!ssl_security(sc, SSL_SECOP_TMP_DH,
7147 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
7148 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
7151 EVP_PKEY_free(sc->cert->dh_tmp);
7152 sc->cert->dh_tmp = dhpkey;
7156 int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX *ctx, EVP_PKEY *dhpkey)
7158 if (!ssl_ctx_security(ctx, SSL_SECOP_TMP_DH,
7159 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
7160 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
7163 EVP_PKEY_free(ctx->cert->dh_tmp);
7164 ctx->cert->dh_tmp = dhpkey;
7168 /* QUIC-specific methods which are supported on QUIC connections only. */
7169 int SSL_handle_events(SSL *s)
7173 #ifndef OPENSSL_NO_QUIC
7175 return ossl_quic_handle_events(s);
7178 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7179 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc))
7181 * DTLSv1_handle_timeout returns 0 if the timer wasn't expired yet,
7182 * which we consider a success case. Theoretically DTLSv1_handle_timeout
7183 * can also return 0 if s is NULL or not a DTLS object, but we've
7184 * already ruled out those possibilities above, so this is not possible
7185 * here. Thus the only failure cases are where DTLSv1_handle_timeout
7188 return DTLSv1_handle_timeout(s) >= 0;
7193 int SSL_get_event_timeout(SSL *s, struct timeval *tv, int *is_infinite)
7197 #ifndef OPENSSL_NO_QUIC
7199 return ossl_quic_get_event_timeout(s, tv, is_infinite);
7202 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7203 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc)
7204 && DTLSv1_get_timeout(s, tv)) {
7209 tv->tv_sec = 1000000;
7215 int SSL_get_rpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7217 #ifndef OPENSSL_NO_QUIC
7221 return ossl_quic_get_rpoll_descriptor(s, desc);
7227 int SSL_get_wpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7229 #ifndef OPENSSL_NO_QUIC
7233 return ossl_quic_get_wpoll_descriptor(s, desc);
7239 int SSL_net_read_desired(SSL *s)
7241 #ifndef OPENSSL_NO_QUIC
7245 return ossl_quic_get_net_read_desired(s);
7251 int SSL_net_write_desired(SSL *s)
7253 #ifndef OPENSSL_NO_QUIC
7257 return ossl_quic_get_net_write_desired(s);
7263 int SSL_set_blocking_mode(SSL *s, int blocking)
7265 #ifndef OPENSSL_NO_QUIC
7269 return ossl_quic_conn_set_blocking_mode(s, blocking);
7275 int SSL_get_blocking_mode(SSL *s)
7277 #ifndef OPENSSL_NO_QUIC
7281 return ossl_quic_conn_get_blocking_mode(s);
7287 int SSL_set_initial_peer_addr(SSL *s, const BIO_ADDR *peer_addr)
7289 #ifndef OPENSSL_NO_QUIC
7293 return ossl_quic_conn_set_initial_peer_addr(s, peer_addr);
7299 int SSL_shutdown_ex(SSL *ssl, uint64_t flags,
7300 const SSL_SHUTDOWN_EX_ARGS *args,
7303 #ifndef OPENSSL_NO_QUIC
7305 return SSL_shutdown(ssl);
7307 return ossl_quic_conn_shutdown(ssl, flags, args, args_len);
7309 return SSL_shutdown(ssl);
7313 int SSL_stream_conclude(SSL *ssl, uint64_t flags)
7315 #ifndef OPENSSL_NO_QUIC
7319 return ossl_quic_conn_stream_conclude(ssl);
7325 SSL *SSL_new_stream(SSL *s, uint64_t flags)
7327 #ifndef OPENSSL_NO_QUIC
7331 return ossl_quic_conn_stream_new(s, flags);
7337 SSL *SSL_get0_connection(SSL *s)
7339 #ifndef OPENSSL_NO_QUIC
7343 return ossl_quic_get0_connection(s);
7349 int SSL_is_connection(SSL *s)
7351 return SSL_get0_connection(s) == s;
7354 int SSL_get_stream_type(SSL *s)
7356 #ifndef OPENSSL_NO_QUIC
7358 return SSL_STREAM_TYPE_BIDI;
7360 return ossl_quic_get_stream_type(s);
7362 return SSL_STREAM_TYPE_BIDI;
7366 uint64_t SSL_get_stream_id(SSL *s)
7368 #ifndef OPENSSL_NO_QUIC
7372 return ossl_quic_get_stream_id(s);
7378 int SSL_set_default_stream_mode(SSL *s, uint32_t mode)
7380 #ifndef OPENSSL_NO_QUIC
7384 return ossl_quic_set_default_stream_mode(s, mode);
7390 int SSL_set_incoming_stream_policy(SSL *s, int policy, uint64_t aec)
7392 #ifndef OPENSSL_NO_QUIC
7396 return ossl_quic_set_incoming_stream_policy(s, policy, aec);
7402 SSL *SSL_accept_stream(SSL *s, uint64_t flags)
7404 #ifndef OPENSSL_NO_QUIC
7408 return ossl_quic_accept_stream(s, flags);
7414 size_t SSL_get_accept_stream_queue_len(SSL *s)
7416 #ifndef OPENSSL_NO_QUIC
7420 return ossl_quic_get_accept_stream_queue_len(s);
7426 int SSL_stream_reset(SSL *s,
7427 const SSL_STREAM_RESET_ARGS *args,
7430 #ifndef OPENSSL_NO_QUIC
7434 return ossl_quic_stream_reset(s, args, args_len);
7440 int SSL_get_stream_read_state(SSL *s)
7442 #ifndef OPENSSL_NO_QUIC
7444 return SSL_STREAM_STATE_NONE;
7446 return ossl_quic_get_stream_read_state(s);
7448 return SSL_STREAM_STATE_NONE;
7452 int SSL_get_stream_write_state(SSL *s)
7454 #ifndef OPENSSL_NO_QUIC
7456 return SSL_STREAM_STATE_NONE;
7458 return ossl_quic_get_stream_write_state(s);
7460 return SSL_STREAM_STATE_NONE;
7464 int SSL_get_stream_read_error_code(SSL *s, uint64_t *app_error_code)
7466 #ifndef OPENSSL_NO_QUIC
7470 return ossl_quic_get_stream_read_error_code(s, app_error_code);
7476 int SSL_get_stream_write_error_code(SSL *s, uint64_t *app_error_code)
7478 #ifndef OPENSSL_NO_QUIC
7482 return ossl_quic_get_stream_write_error_code(s, app_error_code);
7488 int SSL_get_conn_close_info(SSL *s, SSL_CONN_CLOSE_INFO *info,
7491 #ifndef OPENSSL_NO_QUIC
7495 return ossl_quic_get_conn_close_info(s, info, info_len);
7501 int SSL_add_expected_rpk(SSL *s, EVP_PKEY *rpk)
7503 unsigned char *data = NULL;
7504 SSL_DANE *dane = SSL_get0_dane(s);
7507 if (dane == NULL || dane->dctx == NULL)
7509 if ((ret = i2d_PUBKEY(rpk, &data)) <= 0)
7512 ret = SSL_dane_tlsa_add(s, DANETLS_USAGE_DANE_EE,
7513 DANETLS_SELECTOR_SPKI,
7514 DANETLS_MATCHING_FULL,
7515 data, (size_t)ret) > 0;
7520 EVP_PKEY *SSL_get0_peer_rpk(const SSL *s)
7522 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7524 if (sc == NULL || sc->session == NULL)
7526 return sc->session->peer_rpk;
7529 int SSL_get_negotiated_client_cert_type(const SSL *s)
7531 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7536 return sc->ext.client_cert_type;
7539 int SSL_get_negotiated_server_cert_type(const SSL *s)
7541 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7546 return sc->ext.server_cert_type;
7549 static int validate_cert_type(const unsigned char *val, size_t len)
7555 if (val == NULL && len == 0)
7558 if (val == NULL || len == 0)
7561 for (i = 0; i < len; i++) {
7563 case TLSEXT_cert_type_rpk:
7568 case TLSEXT_cert_type_x509:
7573 case TLSEXT_cert_type_pgp:
7574 case TLSEXT_cert_type_1609dot2:
7582 static int set_cert_type(unsigned char **cert_type,
7583 size_t *cert_type_len,
7584 const unsigned char *val,
7587 unsigned char *tmp = NULL;
7589 if (!validate_cert_type(val, len))
7592 if (val != NULL && (tmp = OPENSSL_memdup(val, len)) == NULL)
7595 OPENSSL_free(*cert_type);
7597 *cert_type_len = len;
7601 int SSL_set1_client_cert_type(SSL *s, const unsigned char *val, size_t len)
7603 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7605 return set_cert_type(&sc->client_cert_type, &sc->client_cert_type_len,
7609 int SSL_set1_server_cert_type(SSL *s, const unsigned char *val, size_t len)
7611 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7613 return set_cert_type(&sc->server_cert_type, &sc->server_cert_type_len,
7617 int SSL_CTX_set1_client_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7619 return set_cert_type(&ctx->client_cert_type, &ctx->client_cert_type_len,
7623 int SSL_CTX_set1_server_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7625 return set_cert_type(&ctx->server_cert_type, &ctx->server_cert_type_len,
7629 int SSL_get0_client_cert_type(const SSL *s, unsigned char **t, size_t *len)
7631 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7633 if (t == NULL || len == NULL)
7636 *t = sc->client_cert_type;
7637 *len = sc->client_cert_type_len;
7641 int SSL_get0_server_cert_type(const SSL *s, unsigned char **t, size_t *len)
7643 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7645 if (t == NULL || len == NULL)
7648 *t = sc->server_cert_type;
7649 *len = sc->server_cert_type_len;
7653 int SSL_CTX_get0_client_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7655 if (t == NULL || len == NULL)
7658 *t = ctx->client_cert_type;
7659 *len = ctx->client_cert_type_len;
7663 int SSL_CTX_get0_server_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7665 if (t == NULL || len == NULL)
7668 *t = ctx->server_cert_type;
7669 *len = ctx->server_cert_type_len;