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;
755 s->dane.flags = ctx->dane.flags;
756 if (method->version == ctx->method->version) {
757 s->min_proto_version = ctx->min_proto_version;
758 s->max_proto_version = ctx->max_proto_version;
761 s->max_cert_list = ctx->max_cert_list;
762 s->max_early_data = ctx->max_early_data;
763 s->recv_max_early_data = ctx->recv_max_early_data;
764 s->num_tickets = ctx->num_tickets;
765 s->pha_enabled = ctx->pha_enabled;
767 /* Shallow copy of the ciphersuites stack */
768 s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
769 if (s->tls13_ciphersuites == NULL)
773 * Earlier library versions used to copy the pointer to the CERT, not
774 * its contents; only when setting new parameters for the per-SSL
775 * copy, ssl_cert_new would be called (and the direct reference to
776 * the per-SSL_CTX settings would be lost, but those still were
777 * indirectly accessed for various purposes, and for that reason they
778 * used to be known as s->ctx->default_cert). Now we don't look at the
779 * SSL_CTX's CERT after having duplicated it once.
781 s->cert = ssl_cert_dup(ctx->cert);
785 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
786 s->msg_callback = ctx->msg_callback;
787 s->msg_callback_arg = ctx->msg_callback_arg;
788 s->verify_mode = ctx->verify_mode;
789 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
790 s->rlayer.record_padding_cb = ctx->record_padding_cb;
791 s->rlayer.record_padding_arg = ctx->record_padding_arg;
792 s->rlayer.block_padding = ctx->block_padding;
793 s->sid_ctx_length = ctx->sid_ctx_length;
794 if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
796 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
797 s->verify_callback = ctx->default_verify_callback;
798 s->generate_session_id = ctx->generate_session_id;
800 s->param = X509_VERIFY_PARAM_new();
801 if (s->param == NULL)
803 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
804 s->quiet_shutdown = ctx->quiet_shutdown;
806 s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
807 s->max_send_fragment = ctx->max_send_fragment;
808 s->split_send_fragment = ctx->split_send_fragment;
809 s->max_pipelines = ctx->max_pipelines;
810 s->rlayer.default_read_buf_len = ctx->default_read_buf_len;
813 s->ext.debug_arg = NULL;
814 s->ext.ticket_expected = 0;
815 s->ext.status_type = ctx->ext.status_type;
816 s->ext.status_expected = 0;
817 s->ext.ocsp.ids = NULL;
818 s->ext.ocsp.exts = NULL;
819 s->ext.ocsp.resp = NULL;
820 s->ext.ocsp.resp_len = 0;
822 s->session_ctx = ctx;
823 if (ctx->ext.ecpointformats) {
824 s->ext.ecpointformats =
825 OPENSSL_memdup(ctx->ext.ecpointformats,
826 ctx->ext.ecpointformats_len);
827 if (!s->ext.ecpointformats) {
828 s->ext.ecpointformats_len = 0;
831 s->ext.ecpointformats_len =
832 ctx->ext.ecpointformats_len;
834 if (ctx->ext.supportedgroups) {
835 s->ext.supportedgroups =
836 OPENSSL_memdup(ctx->ext.supportedgroups,
837 ctx->ext.supportedgroups_len
838 * sizeof(*ctx->ext.supportedgroups));
839 if (!s->ext.supportedgroups) {
840 s->ext.supportedgroups_len = 0;
843 s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
846 #ifndef OPENSSL_NO_NEXTPROTONEG
850 if (ctx->ext.alpn != NULL) {
851 s->ext.alpn = OPENSSL_malloc(ctx->ext.alpn_len);
852 if (s->ext.alpn == NULL) {
856 memcpy(s->ext.alpn, ctx->ext.alpn, ctx->ext.alpn_len);
857 s->ext.alpn_len = ctx->ext.alpn_len;
860 s->verified_chain = NULL;
861 s->verify_result = X509_V_OK;
863 s->default_passwd_callback = ctx->default_passwd_callback;
864 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
866 s->key_update = SSL_KEY_UPDATE_NONE;
868 s->allow_early_data_cb = ctx->allow_early_data_cb;
869 s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
871 if (!method->ssl_init(ssl))
874 s->server = (method->ssl_accept == ssl_undefined_function) ? 0 : 1;
876 if (!method->ssl_reset(ssl))
879 #ifndef OPENSSL_NO_PSK
880 s->psk_client_callback = ctx->psk_client_callback;
881 s->psk_server_callback = ctx->psk_server_callback;
883 s->psk_find_session_cb = ctx->psk_find_session_cb;
884 s->psk_use_session_cb = ctx->psk_use_session_cb;
886 s->async_cb = ctx->async_cb;
887 s->async_cb_arg = ctx->async_cb_arg;
891 #ifndef OPENSSL_NO_COMP_ALG
892 memcpy(s->cert_comp_prefs, ctx->cert_comp_prefs, sizeof(s->cert_comp_prefs));
894 if (ctx->client_cert_type != NULL) {
895 s->client_cert_type = OPENSSL_memdup(ctx->client_cert_type,
896 ctx->client_cert_type_len);
897 if (s->client_cert_type == NULL)
899 s->client_cert_type_len = ctx->client_cert_type_len;
901 if (ctx->server_cert_type != NULL) {
902 s->server_cert_type = OPENSSL_memdup(ctx->server_cert_type,
903 ctx->server_cert_type_len);
904 if (s->server_cert_type == NULL)
906 s->server_cert_type_len = ctx->server_cert_type_len;
909 #ifndef OPENSSL_NO_CT
910 if (!SSL_set_ct_validation_callback(ssl, ctx->ct_validation_callback,
911 ctx->ct_validation_callback_arg))
915 s->ssl_pkey_num = SSL_PKEY_NUM + ctx->sigalg_list_len;
918 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
921 ERR_raise(ERR_LIB_SSL, ERR_R_ASN1_LIB);
924 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
930 SSL *ossl_ssl_connection_new(SSL_CTX *ctx)
932 return ossl_ssl_connection_new_int(ctx, ctx->method);
935 int SSL_is_dtls(const SSL *s)
937 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
939 #ifndef OPENSSL_NO_QUIC
940 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
947 return SSL_CONNECTION_IS_DTLS(sc) ? 1 : 0;
950 int SSL_is_tls(const SSL *s)
952 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
954 #ifndef OPENSSL_NO_QUIC
955 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
962 return SSL_CONNECTION_IS_DTLS(sc) ? 0 : 1;
965 int SSL_is_quic(const SSL *s)
967 #ifndef OPENSSL_NO_QUIC
968 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
974 int SSL_up_ref(SSL *s)
978 if (CRYPTO_UP_REF(&s->references, &i) <= 0)
981 REF_PRINT_COUNT("SSL", s);
982 REF_ASSERT_ISNT(i < 2);
983 return ((i > 1) ? 1 : 0);
986 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
987 unsigned int sid_ctx_len)
989 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
990 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
993 ctx->sid_ctx_length = sid_ctx_len;
994 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
999 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
1000 unsigned int sid_ctx_len)
1002 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1007 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
1008 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
1011 sc->sid_ctx_length = sid_ctx_len;
1012 memcpy(sc->sid_ctx, sid_ctx, sid_ctx_len);
1017 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
1019 if (!CRYPTO_THREAD_write_lock(ctx->lock))
1021 ctx->generate_session_id = cb;
1022 CRYPTO_THREAD_unlock(ctx->lock);
1026 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
1028 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1030 if (sc == NULL || !CRYPTO_THREAD_write_lock(ssl->lock))
1032 sc->generate_session_id = cb;
1033 CRYPTO_THREAD_unlock(ssl->lock);
1037 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
1038 unsigned int id_len)
1041 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
1042 * we can "construct" a session to give us the desired check - i.e. to
1043 * find if there's a session in the hash table that would conflict with
1044 * any new session built out of this id/id_len and the ssl_version in use
1048 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
1050 if (sc == NULL || id_len > sizeof(r.session_id))
1053 r.ssl_version = sc->version;
1054 r.session_id_length = id_len;
1055 memcpy(r.session_id, id, id_len);
1057 if (!CRYPTO_THREAD_read_lock(sc->session_ctx->lock))
1059 p = lh_SSL_SESSION_retrieve(sc->session_ctx->sessions, &r);
1060 CRYPTO_THREAD_unlock(sc->session_ctx->lock);
1064 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
1066 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
1069 int SSL_set_purpose(SSL *s, int purpose)
1071 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1076 return X509_VERIFY_PARAM_set_purpose(sc->param, purpose);
1079 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
1081 return X509_VERIFY_PARAM_set_trust(s->param, trust);
1084 int SSL_set_trust(SSL *s, int trust)
1086 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1091 return X509_VERIFY_PARAM_set_trust(sc->param, trust);
1094 int SSL_set1_host(SSL *s, const char *hostname)
1096 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1101 /* If a hostname is provided and parses as an IP address,
1102 * treat it as such. */
1103 if (hostname != NULL
1104 && X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname) == 1)
1107 return X509_VERIFY_PARAM_set1_host(sc->param, hostname, 0);
1110 int SSL_add1_host(SSL *s, const char *hostname)
1112 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1117 /* If a hostname is provided and parses as an IP address,
1118 * treat it as such. */
1121 ASN1_OCTET_STRING *ip;
1124 ip = a2i_IPADDRESS(hostname);
1126 /* We didn't want it; only to check if it *is* an IP address */
1127 ASN1_OCTET_STRING_free(ip);
1129 old_ip = X509_VERIFY_PARAM_get1_ip_asc(sc->param);
1132 OPENSSL_free(old_ip);
1133 /* There can be only one IP address */
1137 return X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname);
1141 return X509_VERIFY_PARAM_add1_host(sc->param, hostname, 0);
1144 void SSL_set_hostflags(SSL *s, unsigned int flags)
1146 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1151 X509_VERIFY_PARAM_set_hostflags(sc->param, flags);
1154 const char *SSL_get0_peername(SSL *s)
1156 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1161 return X509_VERIFY_PARAM_get0_peername(sc->param);
1164 int SSL_CTX_dane_enable(SSL_CTX *ctx)
1166 return dane_ctx_enable(&ctx->dane);
1169 unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
1171 unsigned long orig = ctx->dane.flags;
1173 ctx->dane.flags |= flags;
1177 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
1179 unsigned long orig = ctx->dane.flags;
1181 ctx->dane.flags &= ~flags;
1185 int SSL_dane_enable(SSL *s, const char *basedomain)
1188 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1194 if (s->ctx->dane.mdmax == 0) {
1195 ERR_raise(ERR_LIB_SSL, SSL_R_CONTEXT_NOT_DANE_ENABLED);
1198 if (dane->trecs != NULL) {
1199 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_ALREADY_ENABLED);
1204 * Default SNI name. This rejects empty names, while set1_host below
1205 * accepts them and disables hostname checks. To avoid side-effects with
1206 * invalid input, set the SNI name first.
1208 if (sc->ext.hostname == NULL) {
1209 if (!SSL_set_tlsext_host_name(s, basedomain)) {
1210 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1215 /* Primary RFC6125 reference identifier */
1216 if (!X509_VERIFY_PARAM_set1_host(sc->param, basedomain, 0)) {
1217 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1223 dane->dctx = &s->ctx->dane;
1224 dane->trecs = sk_danetls_record_new_null();
1226 if (dane->trecs == NULL) {
1227 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
1233 unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
1236 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1241 orig = sc->dane.flags;
1243 sc->dane.flags |= flags;
1247 unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
1250 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1255 orig = sc->dane.flags;
1257 sc->dane.flags &= ~flags;
1261 int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
1264 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1271 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1275 *mcert = dane->mcert;
1277 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
1282 int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
1283 uint8_t *mtype, const unsigned char **data, size_t *dlen)
1286 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1293 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1297 *usage = dane->mtlsa->usage;
1299 *selector = dane->mtlsa->selector;
1301 *mtype = dane->mtlsa->mtype;
1303 *data = dane->mtlsa->data;
1305 *dlen = dane->mtlsa->dlen;
1310 SSL_DANE *SSL_get0_dane(SSL *s)
1312 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1320 int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
1321 uint8_t mtype, const unsigned char *data, size_t dlen)
1323 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1328 return dane_tlsa_add(&sc->dane, usage, selector, mtype, data, dlen);
1331 int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
1334 return dane_mtype_set(&ctx->dane, md, mtype, ord);
1337 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
1339 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
1342 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
1344 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1349 return X509_VERIFY_PARAM_set1(sc->param, vpm);
1352 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
1357 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
1359 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1367 void SSL_certs_clear(SSL *s)
1369 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1374 ssl_cert_clear_certs(sc->cert);
1377 void SSL_free(SSL *s)
1383 CRYPTO_DOWN_REF(&s->references, &i);
1384 REF_PRINT_COUNT("SSL", s);
1387 REF_ASSERT_ISNT(i < 0);
1389 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1391 if (s->method != NULL)
1392 s->method->ssl_free(s);
1394 SSL_CTX_free(s->ctx);
1395 CRYPTO_THREAD_lock_free(s->lock);
1396 CRYPTO_FREE_REF(&s->references);
1401 void ossl_ssl_connection_free(SSL *ssl)
1405 s = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
1409 X509_VERIFY_PARAM_free(s->param);
1410 dane_final(&s->dane);
1412 /* Ignore return value */
1413 ssl_free_wbio_buffer(s);
1415 RECORD_LAYER_clear(&s->rlayer);
1417 BUF_MEM_free(s->init_buf);
1419 /* add extra stuff */
1420 sk_SSL_CIPHER_free(s->cipher_list);
1421 sk_SSL_CIPHER_free(s->cipher_list_by_id);
1422 sk_SSL_CIPHER_free(s->tls13_ciphersuites);
1423 sk_SSL_CIPHER_free(s->peer_ciphers);
1425 /* Make the next call work :-) */
1426 if (s->session != NULL) {
1427 ssl_clear_bad_session(s);
1428 SSL_SESSION_free(s->session);
1430 SSL_SESSION_free(s->psksession);
1431 OPENSSL_free(s->psksession_id);
1433 ssl_cert_free(s->cert);
1434 OPENSSL_free(s->shared_sigalgs);
1435 /* Free up if allocated */
1437 OPENSSL_free(s->ext.hostname);
1438 SSL_CTX_free(s->session_ctx);
1439 OPENSSL_free(s->ext.ecpointformats);
1440 OPENSSL_free(s->ext.peer_ecpointformats);
1441 OPENSSL_free(s->ext.supportedgroups);
1442 OPENSSL_free(s->ext.peer_supportedgroups);
1443 sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
1444 #ifndef OPENSSL_NO_OCSP
1445 sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
1447 #ifndef OPENSSL_NO_CT
1448 SCT_LIST_free(s->scts);
1449 OPENSSL_free(s->ext.scts);
1451 OPENSSL_free(s->ext.ocsp.resp);
1452 OPENSSL_free(s->ext.alpn);
1453 OPENSSL_free(s->ext.tls13_cookie);
1454 if (s->clienthello != NULL)
1455 OPENSSL_free(s->clienthello->pre_proc_exts);
1456 OPENSSL_free(s->clienthello);
1457 OPENSSL_free(s->pha_context);
1458 EVP_MD_CTX_free(s->pha_dgst);
1460 sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
1461 sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
1463 OPENSSL_free(s->client_cert_type);
1464 OPENSSL_free(s->server_cert_type);
1466 OSSL_STACK_OF_X509_free(s->verified_chain);
1468 if (ssl->method != NULL)
1469 ssl->method->ssl_deinit(ssl);
1471 ASYNC_WAIT_CTX_free(s->waitctx);
1473 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1474 OPENSSL_free(s->ext.npn);
1477 #ifndef OPENSSL_NO_SRTP
1478 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
1482 * We do this late. We want to ensure that any other references we held to
1483 * these BIOs are freed first *before* we call BIO_free_all(), because
1484 * BIO_free_all() will only free each BIO in the chain if the number of
1485 * references to the first BIO have dropped to 0
1487 BIO_free_all(s->wbio);
1489 BIO_free_all(s->rbio);
1491 OPENSSL_free(s->s3.tmp.valid_flags);
1494 void SSL_set0_rbio(SSL *s, BIO *rbio)
1496 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1498 #ifndef OPENSSL_NO_QUIC
1500 ossl_quic_conn_set0_net_rbio(s, rbio);
1508 BIO_free_all(sc->rbio);
1510 sc->rlayer.rrlmethod->set1_bio(sc->rlayer.rrl, sc->rbio);
1513 void SSL_set0_wbio(SSL *s, BIO *wbio)
1515 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1517 #ifndef OPENSSL_NO_QUIC
1519 ossl_quic_conn_set0_net_wbio(s, wbio);
1528 * If the output buffering BIO is still in place, remove it
1530 if (sc->bbio != NULL)
1531 sc->wbio = BIO_pop(sc->wbio);
1533 BIO_free_all(sc->wbio);
1536 /* Re-attach |bbio| to the new |wbio|. */
1537 if (sc->bbio != NULL)
1538 sc->wbio = BIO_push(sc->bbio, sc->wbio);
1540 sc->rlayer.wrlmethod->set1_bio(sc->rlayer.wrl, sc->wbio);
1543 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1546 * For historical reasons, this function has many different cases in
1547 * ownership handling.
1550 /* If nothing has changed, do nothing */
1551 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1555 * If the two arguments are equal then one fewer reference is granted by the
1556 * caller than we want to take
1558 if (rbio != NULL && rbio == wbio)
1562 * If only the wbio is changed only adopt one reference.
1564 if (rbio == SSL_get_rbio(s)) {
1565 SSL_set0_wbio(s, wbio);
1569 * There is an asymmetry here for historical reasons. If only the rbio is
1570 * changed AND the rbio and wbio were originally different, then we only
1571 * adopt one reference.
1573 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1574 SSL_set0_rbio(s, rbio);
1578 /* Otherwise, adopt both references. */
1579 SSL_set0_rbio(s, rbio);
1580 SSL_set0_wbio(s, wbio);
1583 BIO *SSL_get_rbio(const SSL *s)
1585 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1587 #ifndef OPENSSL_NO_QUIC
1589 return ossl_quic_conn_get_net_rbio(s);
1598 BIO *SSL_get_wbio(const SSL *s)
1600 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1602 #ifndef OPENSSL_NO_QUIC
1604 return ossl_quic_conn_get_net_wbio(s);
1610 if (sc->bbio != NULL) {
1612 * If |bbio| is active, the true caller-configured BIO is its
1615 return BIO_next(sc->bbio);
1620 int SSL_get_fd(const SSL *s)
1622 return SSL_get_rfd(s);
1625 int SSL_get_rfd(const SSL *s)
1630 b = SSL_get_rbio(s);
1631 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1633 BIO_get_fd(r, &ret);
1637 int SSL_get_wfd(const SSL *s)
1642 b = SSL_get_wbio(s);
1643 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1645 BIO_get_fd(r, &ret);
1649 #ifndef OPENSSL_NO_SOCK
1650 int SSL_set_fd(SSL *s, int fd)
1655 bio = BIO_new(BIO_s_socket());
1658 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1661 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1662 SSL_set_bio(s, bio, bio);
1663 #ifndef OPENSSL_NO_KTLS
1665 * The new socket is created successfully regardless of ktls_enable.
1666 * ktls_enable doesn't change any functionality of the socket, except
1667 * changing the setsockopt to enable the processing of ktls_start.
1668 * Thus, it is not a problem to call it for non-TLS sockets.
1671 #endif /* OPENSSL_NO_KTLS */
1677 int SSL_set_wfd(SSL *s, int fd)
1679 BIO *rbio = SSL_get_rbio(s);
1681 if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET
1682 || (int)BIO_get_fd(rbio, NULL) != fd) {
1683 BIO *bio = BIO_new(BIO_s_socket());
1686 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1689 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1690 SSL_set0_wbio(s, bio);
1691 #ifndef OPENSSL_NO_KTLS
1693 * The new socket is created successfully regardless of ktls_enable.
1694 * ktls_enable doesn't change any functionality of the socket, except
1695 * changing the setsockopt to enable the processing of ktls_start.
1696 * Thus, it is not a problem to call it for non-TLS sockets.
1699 #endif /* OPENSSL_NO_KTLS */
1702 SSL_set0_wbio(s, rbio);
1707 int SSL_set_rfd(SSL *s, int fd)
1709 BIO *wbio = SSL_get_wbio(s);
1711 if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET
1712 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
1713 BIO *bio = BIO_new(BIO_s_socket());
1716 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1719 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1720 SSL_set0_rbio(s, bio);
1723 SSL_set0_rbio(s, wbio);
1730 /* return length of latest Finished message we sent, copy to 'buf' */
1731 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
1734 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1739 ret = sc->s3.tmp.finish_md_len;
1742 memcpy(buf, sc->s3.tmp.finish_md, count);
1746 /* return length of latest Finished message we expected, copy to 'buf' */
1747 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
1750 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1755 ret = sc->s3.tmp.peer_finish_md_len;
1758 memcpy(buf, sc->s3.tmp.peer_finish_md, count);
1762 int SSL_get_verify_mode(const SSL *s)
1764 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1769 return sc->verify_mode;
1772 int SSL_get_verify_depth(const SSL *s)
1774 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1779 return X509_VERIFY_PARAM_get_depth(sc->param);
1782 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
1783 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1788 return sc->verify_callback;
1791 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
1793 return ctx->verify_mode;
1796 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
1798 return X509_VERIFY_PARAM_get_depth(ctx->param);
1801 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
1802 return ctx->default_verify_callback;
1805 void SSL_set_verify(SSL *s, int mode,
1806 int (*callback) (int ok, X509_STORE_CTX *ctx))
1808 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1813 sc->verify_mode = mode;
1814 if (callback != NULL)
1815 sc->verify_callback = callback;
1818 void SSL_set_verify_depth(SSL *s, int depth)
1820 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1825 X509_VERIFY_PARAM_set_depth(sc->param, depth);
1828 void SSL_set_read_ahead(SSL *s, int yes)
1830 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1831 OSSL_PARAM options[2], *opts = options;
1836 RECORD_LAYER_set_read_ahead(&sc->rlayer, yes);
1838 *opts++ = OSSL_PARAM_construct_int(OSSL_LIBSSL_RECORD_LAYER_PARAM_READ_AHEAD,
1839 &sc->rlayer.read_ahead);
1840 *opts = OSSL_PARAM_construct_end();
1842 /* Ignore return value */
1843 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
1846 int SSL_get_read_ahead(const SSL *s)
1848 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1853 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
1856 int SSL_pending(const SSL *s)
1858 size_t pending = s->method->ssl_pending(s);
1861 * SSL_pending cannot work properly if read-ahead is enabled
1862 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1863 * impossible to fix since SSL_pending cannot report errors that may be
1864 * observed while scanning the new data. (Note that SSL_pending() is
1865 * often used as a boolean value, so we'd better not return -1.)
1867 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1868 * we just return INT_MAX.
1870 return pending < INT_MAX ? (int)pending : INT_MAX;
1873 int SSL_has_pending(const SSL *s)
1875 #ifndef OPENSSL_NO_QUIC
1876 const QUIC_CONNECTION *qc = QUIC_CONNECTION_FROM_SSL(s);
1880 * Similar to SSL_pending() but returns a 1 to indicate that we have
1881 * processed or unprocessed data available or 0 otherwise (as opposed to the
1882 * number of bytes available). Unlike SSL_pending() this will take into
1883 * account read_ahead data. A 1 return simply indicates that we have data.
1884 * That data may not result in any application data, or we may fail to parse
1885 * the records for some reason.
1887 const SSL_CONNECTION *sc;
1889 #ifndef OPENSSL_NO_QUIC
1891 return ossl_quic_has_pending(s);
1894 sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1896 #ifndef OPENSSL_NO_QUIC
1898 return ossl_quic_has_pending(qc);
1901 /* Check buffered app data if any first */
1902 if (SSL_CONNECTION_IS_DTLS(sc)) {
1906 iter = pqueue_iterator(sc->rlayer.d->buffered_app_data.q);
1907 while ((item = pqueue_next(&iter)) != NULL) {
1909 if (rdata->length > 0)
1914 if (RECORD_LAYER_processed_read_pending(&sc->rlayer))
1917 return RECORD_LAYER_read_pending(&sc->rlayer);
1920 X509 *SSL_get1_peer_certificate(const SSL *s)
1922 X509 *r = SSL_get0_peer_certificate(s);
1930 X509 *SSL_get0_peer_certificate(const SSL *s)
1932 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1937 if (sc->session == NULL)
1940 return sc->session->peer;
1943 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
1946 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1951 if (sc->session == NULL)
1954 r = sc->session->peer_chain;
1957 * If we are a client, cert_chain includes the peer's own certificate; if
1958 * we are a server, it does not.
1965 * Now in theory, since the calling process own 't' it should be safe to
1966 * modify. We need to be able to read f without being hassled
1968 int SSL_copy_session_id(SSL *t, const SSL *f)
1971 /* TODO(QUIC): Do we want to support this for QUIC connections? */
1972 SSL_CONNECTION *tsc = SSL_CONNECTION_FROM_SSL_ONLY(t);
1973 const SSL_CONNECTION *fsc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(f);
1975 if (tsc == NULL || fsc == NULL)
1978 /* Do we need to do SSL locking? */
1979 if (!SSL_set_session(t, SSL_get_session(f))) {
1984 * what if we are setup for one protocol version but want to talk another
1986 if (t->method != f->method) {
1987 t->method->ssl_deinit(t);
1988 t->method = f->method;
1989 if (t->method->ssl_init(t) == 0)
1993 CRYPTO_UP_REF(&fsc->cert->references, &i);
1994 ssl_cert_free(tsc->cert);
1995 tsc->cert = fsc->cert;
1996 if (!SSL_set_session_id_context(t, fsc->sid_ctx, (int)fsc->sid_ctx_length)) {
2003 /* Fix this so it checks all the valid key/cert options */
2004 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
2006 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
2007 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
2010 if (ctx->cert->key->privatekey == NULL) {
2011 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
2014 return X509_check_private_key
2015 (ctx->cert->key->x509, ctx->cert->key->privatekey);
2018 /* Fix this function so that it takes an optional type parameter */
2019 int SSL_check_private_key(const SSL *ssl)
2021 const SSL_CONNECTION *sc;
2023 if ((sc = SSL_CONNECTION_FROM_CONST_SSL(ssl)) == NULL) {
2024 ERR_raise(ERR_LIB_SSL, ERR_R_PASSED_NULL_PARAMETER);
2027 if (sc->cert->key->x509 == NULL) {
2028 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
2031 if (sc->cert->key->privatekey == NULL) {
2032 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
2035 return X509_check_private_key(sc->cert->key->x509,
2036 sc->cert->key->privatekey);
2039 int SSL_waiting_for_async(SSL *s)
2041 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2052 int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
2054 ASYNC_WAIT_CTX *ctx;
2055 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2060 if ((ctx = sc->waitctx) == NULL)
2062 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
2065 int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
2066 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
2068 ASYNC_WAIT_CTX *ctx;
2069 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2074 if ((ctx = sc->waitctx) == NULL)
2076 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
2080 int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback)
2082 ctx->async_cb = callback;
2086 int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg)
2088 ctx->async_cb_arg = arg;
2092 int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback)
2094 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2099 sc->async_cb = callback;
2103 int SSL_set_async_callback_arg(SSL *s, void *arg)
2105 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2110 sc->async_cb_arg = arg;
2114 int SSL_get_async_status(SSL *s, int *status)
2116 ASYNC_WAIT_CTX *ctx;
2117 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2122 if ((ctx = sc->waitctx) == NULL)
2124 *status = ASYNC_WAIT_CTX_get_status(ctx);
2128 int SSL_accept(SSL *s)
2130 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2132 #ifndef OPENSSL_NO_QUIC
2134 return s->method->ssl_accept(s);
2140 if (sc->handshake_func == NULL) {
2141 /* Not properly initialized yet */
2142 SSL_set_accept_state(s);
2145 return SSL_do_handshake(s);
2148 int SSL_connect(SSL *s)
2150 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2152 #ifndef OPENSSL_NO_QUIC
2154 return s->method->ssl_connect(s);
2160 if (sc->handshake_func == NULL) {
2161 /* Not properly initialized yet */
2162 SSL_set_connect_state(s);
2165 return SSL_do_handshake(s);
2168 long SSL_get_default_timeout(const SSL *s)
2170 return (long int)ossl_time2seconds(s->method->get_timeout());
2173 static int ssl_async_wait_ctx_cb(void *arg)
2175 SSL *s = (SSL *)arg;
2176 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2181 return sc->async_cb(s, sc->async_cb_arg);
2184 static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
2185 int (*func) (void *))
2188 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2193 if (sc->waitctx == NULL) {
2194 sc->waitctx = ASYNC_WAIT_CTX_new();
2195 if (sc->waitctx == NULL)
2197 if (sc->async_cb != NULL
2198 && !ASYNC_WAIT_CTX_set_callback
2199 (sc->waitctx, ssl_async_wait_ctx_cb, s))
2203 sc->rwstate = SSL_NOTHING;
2204 switch (ASYNC_start_job(&sc->job, sc->waitctx, &ret, func, args,
2205 sizeof(struct ssl_async_args))) {
2207 sc->rwstate = SSL_NOTHING;
2208 ERR_raise(ERR_LIB_SSL, SSL_R_FAILED_TO_INIT_ASYNC);
2211 sc->rwstate = SSL_ASYNC_PAUSED;
2214 sc->rwstate = SSL_ASYNC_NO_JOBS;
2220 sc->rwstate = SSL_NOTHING;
2221 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
2222 /* Shouldn't happen */
2227 static int ssl_io_intern(void *vargs)
2229 struct ssl_async_args *args;
2235 args = (struct ssl_async_args *)vargs;
2239 if ((sc = SSL_CONNECTION_FROM_SSL(s)) == NULL)
2242 switch (args->type) {
2244 return args->f.func_read(s, buf, num, &sc->asyncrw);
2246 return args->f.func_write(s, buf, num, &sc->asyncrw);
2248 return args->f.func_other(s);
2253 int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2255 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2257 #ifndef OPENSSL_NO_QUIC
2259 return s->method->ssl_read(s, buf, num, readbytes);
2265 if (sc->handshake_func == NULL) {
2266 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2270 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2271 sc->rwstate = SSL_NOTHING;
2275 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2276 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
2277 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2281 * If we are a client and haven't received the ServerHello etc then we
2284 ossl_statem_check_finish_init(sc, 0);
2286 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2287 struct ssl_async_args args;
2293 args.type = READFUNC;
2294 args.f.func_read = s->method->ssl_read;
2296 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2297 *readbytes = sc->asyncrw;
2300 return s->method->ssl_read(s, buf, num, readbytes);
2304 int SSL_read(SSL *s, void *buf, int num)
2310 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2314 ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
2317 * The cast is safe here because ret should be <= INT_MAX because num is
2321 ret = (int)readbytes;
2326 int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2328 int ret = ssl_read_internal(s, buf, num, readbytes);
2335 int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
2338 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2340 /* TODO(QUIC): This will need special handling for QUIC */
2345 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2346 return SSL_READ_EARLY_DATA_ERROR;
2349 switch (sc->early_data_state) {
2350 case SSL_EARLY_DATA_NONE:
2351 if (!SSL_in_before(s)) {
2352 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2353 return SSL_READ_EARLY_DATA_ERROR;
2357 case SSL_EARLY_DATA_ACCEPT_RETRY:
2358 sc->early_data_state = SSL_EARLY_DATA_ACCEPTING;
2359 ret = SSL_accept(s);
2362 sc->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
2363 return SSL_READ_EARLY_DATA_ERROR;
2367 case SSL_EARLY_DATA_READ_RETRY:
2368 if (sc->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
2369 sc->early_data_state = SSL_EARLY_DATA_READING;
2370 ret = SSL_read_ex(s, buf, num, readbytes);
2372 * State machine will update early_data_state to
2373 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
2376 if (ret > 0 || (ret <= 0 && sc->early_data_state
2377 != SSL_EARLY_DATA_FINISHED_READING)) {
2378 sc->early_data_state = SSL_EARLY_DATA_READ_RETRY;
2379 return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
2380 : SSL_READ_EARLY_DATA_ERROR;
2383 sc->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
2386 return SSL_READ_EARLY_DATA_FINISH;
2389 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2390 return SSL_READ_EARLY_DATA_ERROR;
2394 int SSL_get_early_data_status(const SSL *s)
2396 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
2398 /* TODO(QUIC): This will need special handling for QUIC */
2402 return sc->ext.early_data;
2405 static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2407 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2409 #ifndef OPENSSL_NO_QUIC
2411 return s->method->ssl_peek(s, buf, num, readbytes);
2417 if (sc->handshake_func == NULL) {
2418 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2422 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2425 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2426 struct ssl_async_args args;
2432 args.type = READFUNC;
2433 args.f.func_read = s->method->ssl_peek;
2435 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2436 *readbytes = sc->asyncrw;
2439 return s->method->ssl_peek(s, buf, num, readbytes);
2443 int SSL_peek(SSL *s, void *buf, int num)
2449 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2453 ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
2456 * The cast is safe here because ret should be <= INT_MAX because num is
2460 ret = (int)readbytes;
2466 int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2468 int ret = ssl_peek_internal(s, buf, num, readbytes);
2475 int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written)
2477 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2479 #ifndef OPENSSL_NO_QUIC
2481 return s->method->ssl_write(s, buf, num, written);
2487 if (sc->handshake_func == NULL) {
2488 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2492 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2493 sc->rwstate = SSL_NOTHING;
2494 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2498 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2499 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
2500 || sc->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
2501 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2504 /* If we are a client and haven't sent the Finished we better do that */
2505 ossl_statem_check_finish_init(sc, 1);
2507 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2509 struct ssl_async_args args;
2512 args.buf = (void *)buf;
2514 args.type = WRITEFUNC;
2515 args.f.func_write = s->method->ssl_write;
2517 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2518 *written = sc->asyncrw;
2521 return s->method->ssl_write(s, buf, num, written);
2525 ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size, int flags)
2528 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2533 if (sc->handshake_func == NULL) {
2534 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2538 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2539 sc->rwstate = SSL_NOTHING;
2540 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2544 if (!BIO_get_ktls_send(sc->wbio)) {
2545 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2549 /* If we have an alert to send, lets send it */
2550 if (sc->s3.alert_dispatch > 0) {
2551 ret = (ossl_ssize_t)s->method->ssl_dispatch_alert(s);
2553 /* SSLfatal() already called if appropriate */
2556 /* if it went, fall through and send more stuff */
2559 sc->rwstate = SSL_WRITING;
2560 if (BIO_flush(sc->wbio) <= 0) {
2561 if (!BIO_should_retry(sc->wbio)) {
2562 sc->rwstate = SSL_NOTHING;
2565 set_sys_error(EAGAIN);
2571 #ifdef OPENSSL_NO_KTLS
2572 ERR_raise_data(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR,
2573 "can't call ktls_sendfile(), ktls disabled");
2576 ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags);
2578 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2579 if ((get_last_sys_error() == EAGAIN) ||
2580 (get_last_sys_error() == EINTR) ||
2581 (get_last_sys_error() == EBUSY))
2582 BIO_set_retry_write(sc->wbio);
2585 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2588 sc->rwstate = SSL_NOTHING;
2593 int SSL_write(SSL *s, const void *buf, int num)
2599 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2603 ret = ssl_write_internal(s, buf, (size_t)num, &written);
2606 * The cast is safe here because ret should be <= INT_MAX because num is
2615 int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
2617 int ret = ssl_write_internal(s, buf, num, written);
2624 int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
2626 int ret, early_data_state;
2628 uint32_t partialwrite;
2629 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2631 /* TODO(QUIC): This will need special handling for QUIC */
2635 switch (sc->early_data_state) {
2636 case SSL_EARLY_DATA_NONE:
2638 || !SSL_in_before(s)
2639 || ((sc->session == NULL || sc->session->ext.max_early_data == 0)
2640 && (sc->psk_use_session_cb == NULL))) {
2641 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2646 case SSL_EARLY_DATA_CONNECT_RETRY:
2647 sc->early_data_state = SSL_EARLY_DATA_CONNECTING;
2648 ret = SSL_connect(s);
2651 sc->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
2656 case SSL_EARLY_DATA_WRITE_RETRY:
2657 sc->early_data_state = SSL_EARLY_DATA_WRITING;
2659 * We disable partial write for early data because we don't keep track
2660 * of how many bytes we've written between the SSL_write_ex() call and
2661 * the flush if the flush needs to be retried)
2663 partialwrite = sc->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
2664 sc->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
2665 ret = SSL_write_ex(s, buf, num, &writtmp);
2666 sc->mode |= partialwrite;
2668 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2671 sc->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
2674 case SSL_EARLY_DATA_WRITE_FLUSH:
2675 /* The buffering BIO is still in place so we need to flush it */
2676 if (statem_flush(sc) != 1)
2679 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2682 case SSL_EARLY_DATA_FINISHED_READING:
2683 case SSL_EARLY_DATA_READ_RETRY:
2684 early_data_state = sc->early_data_state;
2685 /* We are a server writing to an unauthenticated client */
2686 sc->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
2687 ret = SSL_write_ex(s, buf, num, written);
2688 /* The buffering BIO is still in place */
2690 (void)BIO_flush(sc->wbio);
2691 sc->early_data_state = early_data_state;
2695 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2700 int SSL_shutdown(SSL *s)
2703 * Note that this function behaves differently from what one might
2704 * expect. Return values are 0 for no success (yet), 1 for success; but
2705 * calling it once is usually not enough, even if blocking I/O is used
2706 * (see ssl3_shutdown).
2708 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2710 #ifndef OPENSSL_NO_QUIC
2712 return ossl_quic_conn_shutdown(s, 0, NULL, 0);
2718 if (sc->handshake_func == NULL) {
2719 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2723 if (!SSL_in_init(s)) {
2724 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2725 struct ssl_async_args args;
2727 memset(&args, 0, sizeof(args));
2729 args.type = OTHERFUNC;
2730 args.f.func_other = s->method->ssl_shutdown;
2732 return ssl_start_async_job(s, &args, ssl_io_intern);
2734 return s->method->ssl_shutdown(s);
2737 ERR_raise(ERR_LIB_SSL, SSL_R_SHUTDOWN_WHILE_IN_INIT);
2742 int SSL_key_update(SSL *s, int updatetype)
2744 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2746 #ifndef OPENSSL_NO_QUIC
2748 return ossl_quic_key_update(s, updatetype);
2754 if (!SSL_CONNECTION_IS_TLS13(sc)) {
2755 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2759 if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
2760 && updatetype != SSL_KEY_UPDATE_REQUESTED) {
2761 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_KEY_UPDATE_TYPE);
2765 if (!SSL_is_init_finished(s)) {
2766 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
2770 if (RECORD_LAYER_write_pending(&sc->rlayer)) {
2771 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_WRITE_RETRY);
2775 ossl_statem_set_in_init(sc, 1);
2776 sc->key_update = updatetype;
2780 int SSL_get_key_update_type(const SSL *s)
2782 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
2784 #ifndef OPENSSL_NO_QUIC
2786 return ossl_quic_get_key_update_type(s);
2792 return sc->key_update;
2796 * Can we accept a renegotiation request? If yes, set the flag and
2797 * return 1 if yes. If not, raise error and return 0.
2799 static int can_renegotiate(const SSL_CONNECTION *sc)
2801 if (SSL_CONNECTION_IS_TLS13(sc)) {
2802 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2806 if ((sc->options & SSL_OP_NO_RENEGOTIATION) != 0) {
2807 ERR_raise(ERR_LIB_SSL, SSL_R_NO_RENEGOTIATION);
2814 int SSL_renegotiate(SSL *s)
2816 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2821 if (!can_renegotiate(sc))
2824 sc->renegotiate = 1;
2825 sc->new_session = 1;
2826 return s->method->ssl_renegotiate(s);
2829 int SSL_renegotiate_abbreviated(SSL *s)
2831 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2836 if (!can_renegotiate(sc))
2839 sc->renegotiate = 1;
2840 sc->new_session = 0;
2841 return s->method->ssl_renegotiate(s);
2844 int SSL_renegotiate_pending(const SSL *s)
2846 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2852 * becomes true when negotiation is requested; false again once a
2853 * handshake has finished
2855 return (sc->renegotiate != 0);
2858 int SSL_new_session_ticket(SSL *s)
2860 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2865 /* If we are in init because we're sending tickets, okay to send more. */
2866 if ((SSL_in_init(s) && sc->ext.extra_tickets_expected == 0)
2867 || SSL_IS_FIRST_HANDSHAKE(sc) || !sc->server
2868 || !SSL_CONNECTION_IS_TLS13(sc))
2870 sc->ext.extra_tickets_expected++;
2871 if (!RECORD_LAYER_write_pending(&sc->rlayer) && !SSL_in_init(s))
2872 ossl_statem_set_in_init(sc, 1);
2876 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
2879 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2881 /* TODO(QUIC): Special handling for some ctrls will be needed */
2886 case SSL_CTRL_GET_READ_AHEAD:
2887 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
2888 case SSL_CTRL_SET_READ_AHEAD:
2889 l = RECORD_LAYER_get_read_ahead(&sc->rlayer);
2890 RECORD_LAYER_set_read_ahead(&sc->rlayer, larg);
2895 OSSL_PARAM options[2], *opts = options;
2899 *opts++ = OSSL_PARAM_construct_uint32(OSSL_LIBSSL_RECORD_LAYER_PARAM_MODE,
2901 *opts = OSSL_PARAM_construct_end();
2903 /* Ignore return value */
2904 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
2908 case SSL_CTRL_CLEAR_MODE:
2909 return (sc->mode &= ~larg);
2910 case SSL_CTRL_GET_MAX_CERT_LIST:
2911 return (long)sc->max_cert_list;
2912 case SSL_CTRL_SET_MAX_CERT_LIST:
2915 l = (long)sc->max_cert_list;
2916 sc->max_cert_list = (size_t)larg;
2918 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2919 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2921 #ifndef OPENSSL_NO_KTLS
2922 if (sc->wbio != NULL && BIO_get_ktls_send(sc->wbio))
2924 #endif /* OPENSSL_NO_KTLS */
2925 sc->max_send_fragment = larg;
2926 if (sc->max_send_fragment < sc->split_send_fragment)
2927 sc->split_send_fragment = sc->max_send_fragment;
2928 sc->rlayer.wrlmethod->set_max_frag_len(sc->rlayer.wrl, larg);
2930 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2931 if ((size_t)larg > sc->max_send_fragment || larg == 0)
2933 sc->split_send_fragment = larg;
2935 case SSL_CTRL_SET_MAX_PIPELINES:
2936 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2938 sc->max_pipelines = larg;
2939 if (sc->rlayer.rrlmethod->set_max_pipelines != NULL)
2940 sc->rlayer.rrlmethod->set_max_pipelines(sc->rlayer.rrl, (size_t)larg);
2942 case SSL_CTRL_GET_RI_SUPPORT:
2943 return sc->s3.send_connection_binding;
2944 case SSL_CTRL_SET_RETRY_VERIFY:
2945 sc->rwstate = SSL_RETRY_VERIFY;
2947 case SSL_CTRL_CERT_FLAGS:
2948 return (sc->cert->cert_flags |= larg);
2949 case SSL_CTRL_CLEAR_CERT_FLAGS:
2950 return (sc->cert->cert_flags &= ~larg);
2952 case SSL_CTRL_GET_RAW_CIPHERLIST:
2954 if (sc->s3.tmp.ciphers_raw == NULL)
2956 *(unsigned char **)parg = sc->s3.tmp.ciphers_raw;
2957 return (int)sc->s3.tmp.ciphers_rawlen;
2959 return TLS_CIPHER_LEN;
2961 case SSL_CTRL_GET_EXTMS_SUPPORT:
2962 if (!sc->session || SSL_in_init(s) || ossl_statem_get_in_handshake(sc))
2964 if (sc->session->flags & SSL_SESS_FLAG_EXTMS)
2968 case SSL_CTRL_SET_MIN_PROTO_VERSION:
2969 return ssl_check_allowed_versions(larg, sc->max_proto_version)
2970 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
2971 &sc->min_proto_version);
2972 case SSL_CTRL_GET_MIN_PROTO_VERSION:
2973 return sc->min_proto_version;
2974 case SSL_CTRL_SET_MAX_PROTO_VERSION:
2975 return ssl_check_allowed_versions(sc->min_proto_version, larg)
2976 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
2977 &sc->max_proto_version);
2978 case SSL_CTRL_GET_MAX_PROTO_VERSION:
2979 return sc->max_proto_version;
2981 return s->method->ssl_ctrl(s, cmd, larg, parg);
2985 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
2987 return s->method->ssl_callback_ctrl(s, cmd, fp);
2990 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
2992 return ctx->sessions;
2995 static int ssl_tsan_load(SSL_CTX *ctx, TSAN_QUALIFIER int *stat)
2999 if (ssl_tsan_lock(ctx)) {
3000 res = tsan_load(stat);
3001 ssl_tsan_unlock(ctx);
3006 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
3009 /* For some cases with ctx == NULL perform syntax checks */
3012 case SSL_CTRL_SET_GROUPS_LIST:
3013 return tls1_set_groups_list(ctx, NULL, NULL, parg);
3014 case SSL_CTRL_SET_SIGALGS_LIST:
3015 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
3016 return tls1_set_sigalgs_list(NULL, parg, 0);
3023 case SSL_CTRL_GET_READ_AHEAD:
3024 return ctx->read_ahead;
3025 case SSL_CTRL_SET_READ_AHEAD:
3026 l = ctx->read_ahead;
3027 ctx->read_ahead = larg;
3030 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
3031 ctx->msg_callback_arg = parg;
3034 case SSL_CTRL_GET_MAX_CERT_LIST:
3035 return (long)ctx->max_cert_list;
3036 case SSL_CTRL_SET_MAX_CERT_LIST:
3039 l = (long)ctx->max_cert_list;
3040 ctx->max_cert_list = (size_t)larg;
3043 case SSL_CTRL_SET_SESS_CACHE_SIZE:
3046 l = (long)ctx->session_cache_size;
3047 ctx->session_cache_size = (size_t)larg;
3049 case SSL_CTRL_GET_SESS_CACHE_SIZE:
3050 return (long)ctx->session_cache_size;
3051 case SSL_CTRL_SET_SESS_CACHE_MODE:
3052 l = ctx->session_cache_mode;
3053 ctx->session_cache_mode = larg;
3055 case SSL_CTRL_GET_SESS_CACHE_MODE:
3056 return ctx->session_cache_mode;
3058 case SSL_CTRL_SESS_NUMBER:
3059 return lh_SSL_SESSION_num_items(ctx->sessions);
3060 case SSL_CTRL_SESS_CONNECT:
3061 return ssl_tsan_load(ctx, &ctx->stats.sess_connect);
3062 case SSL_CTRL_SESS_CONNECT_GOOD:
3063 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_good);
3064 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
3065 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_renegotiate);
3066 case SSL_CTRL_SESS_ACCEPT:
3067 return ssl_tsan_load(ctx, &ctx->stats.sess_accept);
3068 case SSL_CTRL_SESS_ACCEPT_GOOD:
3069 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_good);
3070 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
3071 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_renegotiate);
3072 case SSL_CTRL_SESS_HIT:
3073 return ssl_tsan_load(ctx, &ctx->stats.sess_hit);
3074 case SSL_CTRL_SESS_CB_HIT:
3075 return ssl_tsan_load(ctx, &ctx->stats.sess_cb_hit);
3076 case SSL_CTRL_SESS_MISSES:
3077 return ssl_tsan_load(ctx, &ctx->stats.sess_miss);
3078 case SSL_CTRL_SESS_TIMEOUTS:
3079 return ssl_tsan_load(ctx, &ctx->stats.sess_timeout);
3080 case SSL_CTRL_SESS_CACHE_FULL:
3081 return ssl_tsan_load(ctx, &ctx->stats.sess_cache_full);
3083 return (ctx->mode |= larg);
3084 case SSL_CTRL_CLEAR_MODE:
3085 return (ctx->mode &= ~larg);
3086 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
3087 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
3089 ctx->max_send_fragment = larg;
3090 if (ctx->max_send_fragment < ctx->split_send_fragment)
3091 ctx->split_send_fragment = ctx->max_send_fragment;
3093 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
3094 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
3096 ctx->split_send_fragment = larg;
3098 case SSL_CTRL_SET_MAX_PIPELINES:
3099 if (larg < 1 || larg > SSL_MAX_PIPELINES)
3101 ctx->max_pipelines = larg;
3103 case SSL_CTRL_CERT_FLAGS:
3104 return (ctx->cert->cert_flags |= larg);
3105 case SSL_CTRL_CLEAR_CERT_FLAGS:
3106 return (ctx->cert->cert_flags &= ~larg);
3107 case SSL_CTRL_SET_MIN_PROTO_VERSION:
3108 return ssl_check_allowed_versions(larg, ctx->max_proto_version)
3109 && ssl_set_version_bound(ctx->method->version, (int)larg,
3110 &ctx->min_proto_version);
3111 case SSL_CTRL_GET_MIN_PROTO_VERSION:
3112 return ctx->min_proto_version;
3113 case SSL_CTRL_SET_MAX_PROTO_VERSION:
3114 return ssl_check_allowed_versions(ctx->min_proto_version, larg)
3115 && ssl_set_version_bound(ctx->method->version, (int)larg,
3116 &ctx->max_proto_version);
3117 case SSL_CTRL_GET_MAX_PROTO_VERSION:
3118 return ctx->max_proto_version;
3120 return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
3124 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
3127 case SSL_CTRL_SET_MSG_CALLBACK:
3128 ctx->msg_callback = (void (*)
3129 (int write_p, int version, int content_type,
3130 const void *buf, size_t len, SSL *ssl,
3135 return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
3139 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
3148 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
3149 const SSL_CIPHER *const *bp)
3151 if ((*ap)->id > (*bp)->id)
3153 if ((*ap)->id < (*bp)->id)
3159 * return a STACK of the ciphers available for the SSL and in order of
3162 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
3164 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3167 if (sc->cipher_list != NULL) {
3168 return sc->cipher_list;
3169 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
3170 return s->ctx->cipher_list;
3176 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
3178 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3180 if (sc == NULL || !sc->server)
3182 return sc->peer_ciphers;
3185 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
3187 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
3189 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3194 ciphers = SSL_get_ciphers(s);
3197 if (!ssl_set_client_disabled(sc))
3199 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
3200 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
3201 if (!ssl_cipher_disabled(sc, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
3203 sk = sk_SSL_CIPHER_new_null();
3206 if (!sk_SSL_CIPHER_push(sk, c)) {
3207 sk_SSL_CIPHER_free(sk);
3215 /** return a STACK of the ciphers available for the SSL and in order of
3217 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL_CONNECTION *s)
3220 if (s->cipher_list_by_id != NULL)
3221 return s->cipher_list_by_id;
3222 else if (s->ssl.ctx != NULL
3223 && s->ssl.ctx->cipher_list_by_id != NULL)
3224 return s->ssl.ctx->cipher_list_by_id;
3229 /** The old interface to get the same thing as SSL_get_ciphers() */
3230 const char *SSL_get_cipher_list(const SSL *s, int n)
3232 const SSL_CIPHER *c;
3233 STACK_OF(SSL_CIPHER) *sk;
3237 sk = SSL_get_ciphers(s);
3238 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
3240 c = sk_SSL_CIPHER_value(sk, n);
3246 /** return a STACK of the ciphers available for the SSL_CTX and in order of
3248 STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
3251 return ctx->cipher_list;
3256 * Distinguish between ciphers controlled by set_ciphersuite() and
3257 * set_cipher_list() when counting.
3259 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
3262 const SSL_CIPHER *c;
3266 for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
3267 c = sk_SSL_CIPHER_value(sk, i);
3268 if (c->min_tls >= TLS1_3_VERSION)
3275 /** specify the ciphers to be used by default by the SSL_CTX */
3276 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
3278 STACK_OF(SSL_CIPHER) *sk;
3280 sk = ssl_create_cipher_list(ctx, ctx->tls13_ciphersuites,
3281 &ctx->cipher_list, &ctx->cipher_list_by_id, str,
3284 * ssl_create_cipher_list may return an empty stack if it was unable to
3285 * find a cipher matching the given rule string (for example if the rule
3286 * string specifies a cipher which has been disabled). This is not an
3287 * error as far as ssl_create_cipher_list is concerned, and hence
3288 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
3292 else if (cipher_list_tls12_num(sk) == 0) {
3293 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3299 /** specify the ciphers to be used by the SSL */
3300 int SSL_set_cipher_list(SSL *s, const char *str)
3302 STACK_OF(SSL_CIPHER) *sk;
3303 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3308 sk = ssl_create_cipher_list(s->ctx, sc->tls13_ciphersuites,
3309 &sc->cipher_list, &sc->cipher_list_by_id, str,
3311 /* see comment in SSL_CTX_set_cipher_list */
3314 else if (cipher_list_tls12_num(sk) == 0) {
3315 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3321 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
3324 STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
3325 const SSL_CIPHER *c;
3327 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3333 || sc->peer_ciphers == NULL
3338 clntsk = sc->peer_ciphers;
3339 srvrsk = SSL_get_ciphers(s);
3340 if (clntsk == NULL || srvrsk == NULL)
3343 if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
3346 for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
3349 c = sk_SSL_CIPHER_value(clntsk, i);
3350 if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
3353 n = strlen(c->name);
3370 * Return the requested servername (SNI) value. Note that the behaviour varies
3372 * - whether this is called by the client or the server,
3373 * - if we are before or during/after the handshake,
3374 * - if a resumption or normal handshake is being attempted/has occurred
3375 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
3377 * Note that only the host_name type is defined (RFC 3546).
3379 const char *SSL_get_servername(const SSL *s, const int type)
3381 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3388 * If we don't know if we are the client or the server yet then we assume
3391 server = sc->handshake_func == NULL ? 0 : sc->server;
3393 if (type != TLSEXT_NAMETYPE_host_name)
3399 * In TLSv1.3 on the server SNI is not associated with the session
3400 * but in TLSv1.2 or below it is.
3402 * Before the handshake:
3405 * During/after the handshake (TLSv1.2 or below resumption occurred):
3406 * - If a servername was accepted by the server in the original
3407 * handshake then it will return that servername, or NULL otherwise.
3409 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3410 * - The function will return the servername requested by the client in
3411 * this handshake or NULL if none was requested.
3413 if (sc->hit && !SSL_CONNECTION_IS_TLS13(sc))
3414 return sc->session->ext.hostname;
3419 * Before the handshake:
3420 * - If a servername has been set via a call to
3421 * SSL_set_tlsext_host_name() then it will return that servername
3422 * - If one has not been set, but a TLSv1.2 resumption is being
3423 * attempted and the session from the original handshake had a
3424 * servername accepted by the server then it will return that
3426 * - Otherwise it returns NULL
3428 * During/after the handshake (TLSv1.2 or below resumption occurred):
3429 * - If the session from the original handshake had a servername accepted
3430 * by the server then it will return that servername.
3431 * - Otherwise it returns the servername set via
3432 * SSL_set_tlsext_host_name() (or NULL if it was not called).
3434 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3435 * - It will return the servername set via SSL_set_tlsext_host_name()
3436 * (or NULL if it was not called).
3438 if (SSL_in_before(s)) {
3439 if (sc->ext.hostname == NULL
3440 && sc->session != NULL
3441 && sc->session->ssl_version != TLS1_3_VERSION)
3442 return sc->session->ext.hostname;
3444 if (!SSL_CONNECTION_IS_TLS13(sc) && sc->hit
3445 && sc->session->ext.hostname != NULL)
3446 return sc->session->ext.hostname;
3450 return sc->ext.hostname;
3453 int SSL_get_servername_type(const SSL *s)
3455 if (SSL_get_servername(s, TLSEXT_NAMETYPE_host_name) != NULL)
3456 return TLSEXT_NAMETYPE_host_name;
3461 * SSL_select_next_proto implements the standard protocol selection. It is
3462 * expected that this function is called from the callback set by
3463 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
3464 * vector of 8-bit, length prefixed byte strings. The length byte itself is
3465 * not included in the length. A byte string of length 0 is invalid. No byte
3466 * string may be truncated. The current, but experimental algorithm for
3467 * selecting the protocol is: 1) If the server doesn't support NPN then this
3468 * is indicated to the callback. In this case, the client application has to
3469 * abort the connection or have a default application level protocol. 2) If
3470 * the server supports NPN, but advertises an empty list then the client
3471 * selects the first protocol in its list, but indicates via the API that this
3472 * fallback case was enacted. 3) Otherwise, the client finds the first
3473 * protocol in the server's list that it supports and selects this protocol.
3474 * This is because it's assumed that the server has better information about
3475 * which protocol a client should use. 4) If the client doesn't support any
3476 * of the server's advertised protocols, then this is treated the same as
3477 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
3478 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
3480 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
3481 const unsigned char *server,
3482 unsigned int server_len,
3483 const unsigned char *client, unsigned int client_len)
3486 const unsigned char *result;
3487 int status = OPENSSL_NPN_UNSUPPORTED;
3490 * For each protocol in server preference order, see if we support it.
3492 for (i = 0; i < server_len;) {
3493 for (j = 0; j < client_len;) {
3494 if (server[i] == client[j] &&
3495 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
3496 /* We found a match */
3497 result = &server[i];
3498 status = OPENSSL_NPN_NEGOTIATED;
3508 /* There's no overlap between our protocols and the server's list. */
3510 status = OPENSSL_NPN_NO_OVERLAP;
3513 *out = (unsigned char *)result + 1;
3514 *outlen = result[0];
3518 #ifndef OPENSSL_NO_NEXTPROTONEG
3520 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
3521 * client's requested protocol for this connection and returns 0. If the
3522 * client didn't request any protocol, then *data is set to NULL. Note that
3523 * the client can request any protocol it chooses. The value returned from
3524 * this function need not be a member of the list of supported protocols
3525 * provided by the callback.
3527 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
3530 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3533 /* We have no other way to indicate error */
3539 *data = sc->ext.npn;
3540 if (*data == NULL) {
3543 *len = (unsigned int)sc->ext.npn_len;
3548 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
3549 * a TLS server needs a list of supported protocols for Next Protocol
3550 * Negotiation. The returned list must be in wire format. The list is
3551 * returned by setting |out| to point to it and |outlen| to its length. This
3552 * memory will not be modified, but one should assume that the SSL* keeps a
3553 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
3554 * wishes to advertise. Otherwise, no such extension will be included in the
3557 void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
3558 SSL_CTX_npn_advertised_cb_func cb,
3561 if (IS_QUIC_CTX(ctx))
3562 /* NPN not allowed for QUIC */
3565 ctx->ext.npn_advertised_cb = cb;
3566 ctx->ext.npn_advertised_cb_arg = arg;
3570 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
3571 * client needs to select a protocol from the server's provided list. |out|
3572 * must be set to point to the selected protocol (which may be within |in|).
3573 * The length of the protocol name must be written into |outlen|. The
3574 * server's advertised protocols are provided in |in| and |inlen|. The
3575 * callback can assume that |in| is syntactically valid. The client must
3576 * select a protocol. It is fatal to the connection if this callback returns
3577 * a value other than SSL_TLSEXT_ERR_OK.
3579 void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
3580 SSL_CTX_npn_select_cb_func cb,
3583 if (IS_QUIC_CTX(ctx))
3584 /* NPN not allowed for QUIC */
3587 ctx->ext.npn_select_cb = cb;
3588 ctx->ext.npn_select_cb_arg = arg;
3592 static int alpn_value_ok(const unsigned char *protos, unsigned int protos_len)
3596 if (protos_len < 2 || protos == NULL)
3599 for (idx = 0; idx < protos_len; idx += protos[idx] + 1) {
3600 if (protos[idx] == 0)
3603 return idx == protos_len;
3606 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
3607 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3608 * length-prefixed strings). Returns 0 on success.
3610 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
3611 unsigned int protos_len)
3613 unsigned char *alpn;
3615 if (protos_len == 0 || protos == NULL) {
3616 OPENSSL_free(ctx->ext.alpn);
3617 ctx->ext.alpn = NULL;
3618 ctx->ext.alpn_len = 0;
3621 /* Not valid per RFC */
3622 if (!alpn_value_ok(protos, protos_len))
3625 alpn = OPENSSL_memdup(protos, protos_len);
3628 OPENSSL_free(ctx->ext.alpn);
3629 ctx->ext.alpn = alpn;
3630 ctx->ext.alpn_len = protos_len;
3636 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
3637 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3638 * length-prefixed strings). Returns 0 on success.
3640 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
3641 unsigned int protos_len)
3643 unsigned char *alpn;
3644 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
3649 if (protos_len == 0 || protos == NULL) {
3650 OPENSSL_free(sc->ext.alpn);
3651 sc->ext.alpn = NULL;
3652 sc->ext.alpn_len = 0;
3655 /* Not valid per RFC */
3656 if (!alpn_value_ok(protos, protos_len))
3659 alpn = OPENSSL_memdup(protos, protos_len);
3662 OPENSSL_free(sc->ext.alpn);
3663 sc->ext.alpn = alpn;
3664 sc->ext.alpn_len = protos_len;
3670 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3671 * called during ClientHello processing in order to select an ALPN protocol
3672 * from the client's list of offered protocols.
3674 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
3675 SSL_CTX_alpn_select_cb_func cb,
3678 ctx->ext.alpn_select_cb = cb;
3679 ctx->ext.alpn_select_cb_arg = arg;
3683 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3684 * On return it sets |*data| to point to |*len| bytes of protocol name
3685 * (not including the leading length-prefix byte). If the server didn't
3686 * respond with a negotiated protocol then |*len| will be zero.
3688 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
3691 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
3694 /* We have no other way to indicate error */
3700 *data = sc->s3.alpn_selected;
3704 *len = (unsigned int)sc->s3.alpn_selected_len;
3707 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
3708 const char *label, size_t llen,
3709 const unsigned char *context, size_t contextlen,
3712 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3717 if (sc->session == NULL
3718 || (sc->version < TLS1_VERSION && sc->version != DTLS1_BAD_VER))
3721 return s->method->ssl3_enc->export_keying_material(sc, out, olen, label,
3723 contextlen, use_context);
3726 int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
3727 const char *label, size_t llen,
3728 const unsigned char *context,
3731 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3736 if (sc->version != TLS1_3_VERSION)
3739 return tls13_export_keying_material_early(sc, out, olen, label, llen,
3740 context, contextlen);
3743 static unsigned long ssl_session_hash(const SSL_SESSION *a)
3745 const unsigned char *session_id = a->session_id;
3747 unsigned char tmp_storage[4];
3749 if (a->session_id_length < sizeof(tmp_storage)) {
3750 memset(tmp_storage, 0, sizeof(tmp_storage));
3751 memcpy(tmp_storage, a->session_id, a->session_id_length);
3752 session_id = tmp_storage;
3756 ((unsigned long)session_id[0]) |
3757 ((unsigned long)session_id[1] << 8L) |
3758 ((unsigned long)session_id[2] << 16L) |
3759 ((unsigned long)session_id[3] << 24L);
3764 * NB: If this function (or indeed the hash function which uses a sort of
3765 * coarser function than this one) is changed, ensure
3766 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3767 * being able to construct an SSL_SESSION that will collide with any existing
3768 * session with a matching session ID.
3770 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
3772 if (a->ssl_version != b->ssl_version)
3774 if (a->session_id_length != b->session_id_length)
3776 return memcmp(a->session_id, b->session_id, a->session_id_length);
3780 * These wrapper functions should remain rather than redeclaring
3781 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3782 * variable. The reason is that the functions aren't static, they're exposed
3786 SSL_CTX *SSL_CTX_new_ex(OSSL_LIB_CTX *libctx, const char *propq,
3787 const SSL_METHOD *meth)
3789 SSL_CTX *ret = NULL;
3790 #ifndef OPENSSL_NO_COMP_ALG
3795 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_METHOD_PASSED);
3799 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
3802 /* Doing this for the run once effect */
3803 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3804 ERR_raise(ERR_LIB_SSL, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
3808 ret = OPENSSL_zalloc(sizeof(*ret));
3812 /* Init the reference counting before any call to SSL_CTX_free */
3813 if (!CRYPTO_NEW_REF(&ret->references, 1)) {
3818 ret->lock = CRYPTO_THREAD_lock_new();
3819 if (ret->lock == NULL) {
3820 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3824 #ifdef TSAN_REQUIRES_LOCKING
3825 ret->tsan_lock = CRYPTO_THREAD_lock_new();
3826 if (ret->tsan_lock == NULL) {
3827 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3832 ret->libctx = libctx;
3833 if (propq != NULL) {
3834 ret->propq = OPENSSL_strdup(propq);
3835 if (ret->propq == NULL)
3840 ret->min_proto_version = 0;
3841 ret->max_proto_version = 0;
3842 ret->mode = SSL_MODE_AUTO_RETRY;
3843 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
3844 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
3845 /* We take the system default. */
3846 ret->session_timeout = meth->get_timeout();
3847 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
3848 ret->verify_mode = SSL_VERIFY_NONE;
3850 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
3851 if (ret->sessions == NULL) {
3852 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3855 ret->cert_store = X509_STORE_new();
3856 if (ret->cert_store == NULL) {
3857 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3860 #ifndef OPENSSL_NO_CT
3861 ret->ctlog_store = CTLOG_STORE_new_ex(libctx, propq);
3862 if (ret->ctlog_store == NULL) {
3863 ERR_raise(ERR_LIB_SSL, ERR_R_CT_LIB);
3868 /* initialize cipher/digest methods table */
3869 if (!ssl_load_ciphers(ret)) {
3870 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3874 if (!ssl_load_groups(ret)) {
3875 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3879 /* load provider sigalgs */
3880 if (!ssl_load_sigalgs(ret)) {
3881 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3885 /* initialise sig algs */
3886 if (!ssl_setup_sigalgs(ret)) {
3887 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3891 if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites())) {
3892 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3896 if ((ret->cert = ssl_cert_new(SSL_PKEY_NUM + ret->sigalg_list_len)) == NULL) {
3897 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3901 if (!ssl_create_cipher_list(ret,
3902 ret->tls13_ciphersuites,
3903 &ret->cipher_list, &ret->cipher_list_by_id,
3904 OSSL_default_cipher_list(), ret->cert)
3905 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
3906 ERR_raise(ERR_LIB_SSL, SSL_R_LIBRARY_HAS_NO_CIPHERS);
3910 ret->param = X509_VERIFY_PARAM_new();
3911 if (ret->param == NULL) {
3912 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3917 * If these aren't available from the provider we'll get NULL returns.
3918 * That's fine but will cause errors later if SSLv3 is negotiated
3920 ret->md5 = ssl_evp_md_fetch(libctx, NID_md5, propq);
3921 ret->sha1 = ssl_evp_md_fetch(libctx, NID_sha1, propq);
3923 if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL) {
3924 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3928 if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL) {
3929 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3933 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) {
3934 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3938 if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
3941 /* No compression for DTLS */
3942 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
3943 ret->comp_methods = SSL_COMP_get_compression_methods();
3945 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3946 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3948 /* Setup RFC5077 ticket keys */
3949 if ((RAND_bytes_ex(libctx, ret->ext.tick_key_name,
3950 sizeof(ret->ext.tick_key_name), 0) <= 0)
3951 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_hmac_key,
3952 sizeof(ret->ext.secure->tick_hmac_key), 0) <= 0)
3953 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_aes_key,
3954 sizeof(ret->ext.secure->tick_aes_key), 0) <= 0))
3955 ret->options |= SSL_OP_NO_TICKET;
3957 if (RAND_priv_bytes_ex(libctx, ret->ext.cookie_hmac_key,
3958 sizeof(ret->ext.cookie_hmac_key), 0) <= 0) {
3959 ERR_raise(ERR_LIB_SSL, ERR_R_RAND_LIB);
3963 #ifndef OPENSSL_NO_SRP
3964 if (!ssl_ctx_srp_ctx_init_intern(ret)) {
3965 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3969 #ifndef OPENSSL_NO_ENGINE
3970 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3971 # define eng_strx(x) #x
3972 # define eng_str(x) eng_strx(x)
3973 /* Use specific client engine automatically... ignore errors */
3976 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3979 ENGINE_load_builtin_engines();
3980 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3982 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
3988 #ifndef OPENSSL_NO_COMP_ALG
3990 * Set the default order: brotli, zlib, zstd
3991 * Including only those enabled algorithms
3993 memset(ret->cert_comp_prefs, 0, sizeof(ret->cert_comp_prefs));
3995 if (ossl_comp_has_alg(TLSEXT_comp_cert_brotli))
3996 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_brotli;
3997 if (ossl_comp_has_alg(TLSEXT_comp_cert_zlib))
3998 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zlib;
3999 if (ossl_comp_has_alg(TLSEXT_comp_cert_zstd))
4000 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zstd;
4003 * Disable compression by default to prevent CRIME. Applications can
4004 * re-enable compression by configuring
4005 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
4006 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
4007 * middlebox compatibility by default. This may be disabled by default in
4008 * a later OpenSSL version.
4010 ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
4012 ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
4015 * We cannot usefully set a default max_early_data here (which gets
4016 * propagated in SSL_new(), for the following reason: setting the
4017 * SSL field causes tls_construct_stoc_early_data() to tell the
4018 * client that early data will be accepted when constructing a TLS 1.3
4019 * session ticket, and the client will accordingly send us early data
4020 * when using that ticket (if the client has early data to send).
4021 * However, in order for the early data to actually be consumed by
4022 * the application, the application must also have calls to
4023 * SSL_read_early_data(); otherwise we'll just skip past the early data
4024 * and ignore it. So, since the application must add calls to
4025 * SSL_read_early_data(), we also require them to add
4026 * calls to SSL_CTX_set_max_early_data() in order to use early data,
4027 * eliminating the bandwidth-wasting early data in the case described
4030 ret->max_early_data = 0;
4033 * Default recv_max_early_data is a fully loaded single record. Could be
4034 * split across multiple records in practice. We set this differently to
4035 * max_early_data so that, in the default case, we do not advertise any
4036 * support for early_data, but if a client were to send us some (e.g.
4037 * because of an old, stale ticket) then we will tolerate it and skip over
4040 ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
4042 /* By default we send two session tickets automatically in TLSv1.3 */
4043 ret->num_tickets = 2;
4045 ssl_ctx_system_config(ret);
4053 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
4055 return SSL_CTX_new_ex(NULL, NULL, meth);
4058 int SSL_CTX_up_ref(SSL_CTX *ctx)
4062 if (CRYPTO_UP_REF(&ctx->references, &i) <= 0)
4065 REF_PRINT_COUNT("SSL_CTX", ctx);
4066 REF_ASSERT_ISNT(i < 2);
4067 return ((i > 1) ? 1 : 0);
4070 void SSL_CTX_free(SSL_CTX *a)
4078 CRYPTO_DOWN_REF(&a->references, &i);
4079 REF_PRINT_COUNT("SSL_CTX", a);
4082 REF_ASSERT_ISNT(i < 0);
4084 X509_VERIFY_PARAM_free(a->param);
4085 dane_ctx_final(&a->dane);
4088 * Free internal session cache. However: the remove_cb() may reference
4089 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
4090 * after the sessions were flushed.
4091 * As the ex_data handling routines might also touch the session cache,
4092 * the most secure solution seems to be: empty (flush) the cache, then
4093 * free ex_data, then finally free the cache.
4094 * (See ticket [openssl.org #212].)
4096 if (a->sessions != NULL)
4097 SSL_CTX_flush_sessions(a, 0);
4099 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
4100 lh_SSL_SESSION_free(a->sessions);
4101 X509_STORE_free(a->cert_store);
4102 #ifndef OPENSSL_NO_CT
4103 CTLOG_STORE_free(a->ctlog_store);
4105 sk_SSL_CIPHER_free(a->cipher_list);
4106 sk_SSL_CIPHER_free(a->cipher_list_by_id);
4107 sk_SSL_CIPHER_free(a->tls13_ciphersuites);
4108 ssl_cert_free(a->cert);
4109 sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
4110 sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
4111 OSSL_STACK_OF_X509_free(a->extra_certs);
4112 a->comp_methods = NULL;
4113 #ifndef OPENSSL_NO_SRTP
4114 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
4116 #ifndef OPENSSL_NO_SRP
4117 ssl_ctx_srp_ctx_free_intern(a);
4119 #ifndef OPENSSL_NO_ENGINE
4120 tls_engine_finish(a->client_cert_engine);
4123 OPENSSL_free(a->ext.ecpointformats);
4124 OPENSSL_free(a->ext.supportedgroups);
4125 OPENSSL_free(a->ext.supported_groups_default);
4126 OPENSSL_free(a->ext.alpn);
4127 OPENSSL_secure_free(a->ext.secure);
4129 ssl_evp_md_free(a->md5);
4130 ssl_evp_md_free(a->sha1);
4132 for (j = 0; j < SSL_ENC_NUM_IDX; j++)
4133 ssl_evp_cipher_free(a->ssl_cipher_methods[j]);
4134 for (j = 0; j < SSL_MD_NUM_IDX; j++)
4135 ssl_evp_md_free(a->ssl_digest_methods[j]);
4136 for (j = 0; j < a->group_list_len; j++) {
4137 OPENSSL_free(a->group_list[j].tlsname);
4138 OPENSSL_free(a->group_list[j].realname);
4139 OPENSSL_free(a->group_list[j].algorithm);
4141 OPENSSL_free(a->group_list);
4142 for (j = 0; j < a->sigalg_list_len; j++) {
4143 OPENSSL_free(a->sigalg_list[j].name);
4144 OPENSSL_free(a->sigalg_list[j].sigalg_name);
4145 OPENSSL_free(a->sigalg_list[j].sigalg_oid);
4146 OPENSSL_free(a->sigalg_list[j].sig_name);
4147 OPENSSL_free(a->sigalg_list[j].sig_oid);
4148 OPENSSL_free(a->sigalg_list[j].hash_name);
4149 OPENSSL_free(a->sigalg_list[j].hash_oid);
4150 OPENSSL_free(a->sigalg_list[j].keytype);
4151 OPENSSL_free(a->sigalg_list[j].keytype_oid);
4153 OPENSSL_free(a->sigalg_list);
4154 OPENSSL_free(a->ssl_cert_info);
4156 OPENSSL_free(a->sigalg_lookup_cache);
4157 OPENSSL_free(a->tls12_sigalgs);
4159 OPENSSL_free(a->client_cert_type);
4160 OPENSSL_free(a->server_cert_type);
4162 CRYPTO_THREAD_lock_free(a->lock);
4163 CRYPTO_FREE_REF(&a->references);
4164 #ifdef TSAN_REQUIRES_LOCKING
4165 CRYPTO_THREAD_lock_free(a->tsan_lock);
4168 OPENSSL_free(a->propq);
4173 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
4175 ctx->default_passwd_callback = cb;
4178 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
4180 ctx->default_passwd_callback_userdata = u;
4183 pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
4185 return ctx->default_passwd_callback;
4188 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
4190 return ctx->default_passwd_callback_userdata;
4193 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
4195 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4200 sc->default_passwd_callback = cb;
4203 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
4205 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4210 sc->default_passwd_callback_userdata = u;
4213 pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
4215 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4220 return sc->default_passwd_callback;
4223 void *SSL_get_default_passwd_cb_userdata(SSL *s)
4225 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4230 return sc->default_passwd_callback_userdata;
4233 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
4234 int (*cb) (X509_STORE_CTX *, void *),
4237 ctx->app_verify_callback = cb;
4238 ctx->app_verify_arg = arg;
4241 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
4242 int (*cb) (int, X509_STORE_CTX *))
4244 ctx->verify_mode = mode;
4245 ctx->default_verify_callback = cb;
4248 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
4250 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
4253 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
4255 ssl_cert_set_cert_cb(c->cert, cb, arg);
4258 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
4260 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4265 ssl_cert_set_cert_cb(sc->cert, cb, arg);
4268 void ssl_set_masks(SSL_CONNECTION *s)
4271 uint32_t *pvalid = s->s3.tmp.valid_flags;
4272 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
4273 unsigned long mask_k, mask_a;
4274 int have_ecc_cert, ecdsa_ok;
4279 dh_tmp = (c->dh_tmp != NULL
4280 || c->dh_tmp_cb != NULL
4283 rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4284 rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4285 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
4286 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
4290 OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
4291 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
4293 #ifndef OPENSSL_NO_GOST
4294 if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
4295 mask_k |= SSL_kGOST | SSL_kGOST18;
4296 mask_a |= SSL_aGOST12;
4298 if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
4299 mask_k |= SSL_kGOST | SSL_kGOST18;
4300 mask_a |= SSL_aGOST12;
4302 if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
4303 mask_k |= SSL_kGOST;
4304 mask_a |= SSL_aGOST01;
4315 * If we only have an RSA-PSS certificate allow RSA authentication
4316 * if TLS 1.2 and peer supports it.
4319 if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
4320 && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
4321 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION))
4328 mask_a |= SSL_aNULL;
4331 * You can do anything with an RPK key, since there's no cert to restrict it
4332 * But we need to check for private keys
4334 if (pvalid[SSL_PKEY_RSA] & CERT_PKEY_RPK) {
4338 if (pvalid[SSL_PKEY_ECC] & CERT_PKEY_RPK)
4339 mask_a |= SSL_aECDSA;
4340 if (TLS1_get_version(&s->ssl) == TLS1_2_VERSION) {
4341 if (pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_RPK)
4343 if (pvalid[SSL_PKEY_ED25519] & CERT_PKEY_RPK
4344 || pvalid[SSL_PKEY_ED448] & CERT_PKEY_RPK)
4345 mask_a |= SSL_aECDSA;
4349 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
4350 * depending on the key usage extension.
4352 if (have_ecc_cert) {
4354 ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
4355 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
4356 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
4359 mask_a |= SSL_aECDSA;
4361 /* Allow Ed25519 for TLS 1.2 if peer supports it */
4362 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
4363 && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
4364 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4365 mask_a |= SSL_aECDSA;
4367 /* Allow Ed448 for TLS 1.2 if peer supports it */
4368 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
4369 && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
4370 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4371 mask_a |= SSL_aECDSA;
4373 mask_k |= SSL_kECDHE;
4375 #ifndef OPENSSL_NO_PSK
4378 if (mask_k & SSL_kRSA)
4379 mask_k |= SSL_kRSAPSK;
4380 if (mask_k & SSL_kDHE)
4381 mask_k |= SSL_kDHEPSK;
4382 if (mask_k & SSL_kECDHE)
4383 mask_k |= SSL_kECDHEPSK;
4386 s->s3.tmp.mask_k = mask_k;
4387 s->s3.tmp.mask_a = mask_a;
4390 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CONNECTION *s)
4392 if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
4393 /* key usage, if present, must allow signing */
4394 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
4395 ERR_raise(ERR_LIB_SSL, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
4399 return 1; /* all checks are ok */
4402 int ssl_get_server_cert_serverinfo(SSL_CONNECTION *s,
4403 const unsigned char **serverinfo,
4404 size_t *serverinfo_length)
4406 CERT_PKEY *cpk = s->s3.tmp.cert;
4407 *serverinfo_length = 0;
4409 if (cpk == NULL || cpk->serverinfo == NULL)
4412 *serverinfo = cpk->serverinfo;
4413 *serverinfo_length = cpk->serverinfo_length;
4417 void ssl_update_cache(SSL_CONNECTION *s, int mode)
4422 * If the session_id_length is 0, we are not supposed to cache it, and it
4423 * would be rather hard to do anyway :-)
4425 if (s->session->session_id_length == 0)
4429 * If sid_ctx_length is 0 there is no specific application context
4430 * associated with this session, so when we try to resume it and
4431 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
4432 * indication that this is actually a session for the proper application
4433 * context, and the *handshake* will fail, not just the resumption attempt.
4434 * Do not cache (on the server) these sessions that are not resumable
4435 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
4437 if (s->server && s->session->sid_ctx_length == 0
4438 && (s->verify_mode & SSL_VERIFY_PEER) != 0)
4441 i = s->session_ctx->session_cache_mode;
4443 && (!s->hit || SSL_CONNECTION_IS_TLS13(s))) {
4445 * Add the session to the internal cache. In server side TLSv1.3 we
4446 * normally don't do this because by default it's a full stateless ticket
4447 * with only a dummy session id so there is no reason to cache it,
4449 * - we are doing early_data, in which case we cache so that we can
4451 * - the application has set a remove_session_cb so needs to know about
4452 * session timeout events
4453 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
4455 if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
4456 && (!SSL_CONNECTION_IS_TLS13(s)
4458 || (s->max_early_data > 0
4459 && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
4460 || s->session_ctx->remove_session_cb != NULL
4461 || (s->options & SSL_OP_NO_TICKET) != 0))
4462 SSL_CTX_add_session(s->session_ctx, s->session);
4465 * Add the session to the external cache. We do this even in server side
4466 * TLSv1.3 without early data because some applications just want to
4467 * know about the creation of a session and aren't doing a full cache.
4469 if (s->session_ctx->new_session_cb != NULL) {
4470 SSL_SESSION_up_ref(s->session);
4471 if (!s->session_ctx->new_session_cb(SSL_CONNECTION_GET_SSL(s),
4473 SSL_SESSION_free(s->session);
4477 /* auto flush every 255 connections */
4478 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
4479 TSAN_QUALIFIER int *stat;
4481 if (mode & SSL_SESS_CACHE_CLIENT)
4482 stat = &s->session_ctx->stats.sess_connect_good;
4484 stat = &s->session_ctx->stats.sess_accept_good;
4485 if ((ssl_tsan_load(s->session_ctx, stat) & 0xff) == 0xff)
4486 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
4490 const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
4495 const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
4500 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
4503 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4505 /* TODO(QUIC): Do we want this for QUIC? */
4507 || (s->type != SSL_TYPE_SSL_CONNECTION && s->method != meth))
4510 if (s->method != meth) {
4511 const SSL_METHOD *sm = s->method;
4512 int (*hf) (SSL *) = sc->handshake_func;
4514 if (sm->version == meth->version)
4519 ret = s->method->ssl_init(s);
4522 if (hf == sm->ssl_connect)
4523 sc->handshake_func = meth->ssl_connect;
4524 else if (hf == sm->ssl_accept)
4525 sc->handshake_func = meth->ssl_accept;
4530 int SSL_get_error(const SSL *s, int i)
4535 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4538 return SSL_ERROR_NONE;
4540 #ifndef OPENSSL_NO_QUIC
4542 reason = ossl_quic_get_error(s, i);
4543 if (reason != SSL_ERROR_NONE)
4549 return SSL_ERROR_SSL;
4552 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
4553 * where we do encode the error
4555 if ((l = ERR_peek_error()) != 0) {
4556 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
4557 return SSL_ERROR_SYSCALL;
4559 return SSL_ERROR_SSL;
4562 #ifndef OPENSSL_NO_QUIC
4566 if (SSL_want_read(s)) {
4567 bio = SSL_get_rbio(s);
4568 if (BIO_should_read(bio))
4569 return SSL_ERROR_WANT_READ;
4570 else if (BIO_should_write(bio))
4572 * This one doesn't make too much sense ... We never try to
4573 * write to the rbio, and an application program where rbio and
4574 * wbio are separate couldn't even know what it should wait for.
4575 * However if we ever set s->rwstate incorrectly (so that we
4576 * have SSL_want_read(s) instead of SSL_want_write(s)) and rbio
4577 * and wbio *are* the same, this test works around that bug; so
4578 * it might be safer to keep it.
4580 return SSL_ERROR_WANT_WRITE;
4581 else if (BIO_should_io_special(bio)) {
4582 reason = BIO_get_retry_reason(bio);
4583 if (reason == BIO_RR_CONNECT)
4584 return SSL_ERROR_WANT_CONNECT;
4585 else if (reason == BIO_RR_ACCEPT)
4586 return SSL_ERROR_WANT_ACCEPT;
4588 return SSL_ERROR_SYSCALL; /* unknown */
4592 if (SSL_want_write(s)) {
4594 * Access wbio directly - in order to use the buffered bio if
4598 if (BIO_should_write(bio))
4599 return SSL_ERROR_WANT_WRITE;
4600 else if (BIO_should_read(bio))
4602 * See above (SSL_want_read(s) with BIO_should_write(bio))
4604 return SSL_ERROR_WANT_READ;
4605 else if (BIO_should_io_special(bio)) {
4606 reason = BIO_get_retry_reason(bio);
4607 if (reason == BIO_RR_CONNECT)
4608 return SSL_ERROR_WANT_CONNECT;
4609 else if (reason == BIO_RR_ACCEPT)
4610 return SSL_ERROR_WANT_ACCEPT;
4612 return SSL_ERROR_SYSCALL;
4617 if (SSL_want_x509_lookup(s))
4618 return SSL_ERROR_WANT_X509_LOOKUP;
4619 if (SSL_want_retry_verify(s))
4620 return SSL_ERROR_WANT_RETRY_VERIFY;
4621 if (SSL_want_async(s))
4622 return SSL_ERROR_WANT_ASYNC;
4623 if (SSL_want_async_job(s))
4624 return SSL_ERROR_WANT_ASYNC_JOB;
4625 if (SSL_want_client_hello_cb(s))
4626 return SSL_ERROR_WANT_CLIENT_HELLO_CB;
4628 if ((sc->shutdown & SSL_RECEIVED_SHUTDOWN) &&
4629 (sc->s3.warn_alert == SSL_AD_CLOSE_NOTIFY))
4630 return SSL_ERROR_ZERO_RETURN;
4632 return SSL_ERROR_SYSCALL;
4635 static int ssl_do_handshake_intern(void *vargs)
4637 struct ssl_async_args *args = (struct ssl_async_args *)vargs;
4639 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4644 return sc->handshake_func(s);
4647 int SSL_do_handshake(SSL *s)
4650 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4652 #ifndef OPENSSL_NO_QUIC
4654 return ossl_quic_do_handshake(s);
4657 if (sc->handshake_func == NULL) {
4658 ERR_raise(ERR_LIB_SSL, SSL_R_CONNECTION_TYPE_NOT_SET);
4662 ossl_statem_check_finish_init(sc, -1);
4664 s->method->ssl_renegotiate_check(s, 0);
4666 if (SSL_in_init(s) || SSL_in_before(s)) {
4667 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
4668 struct ssl_async_args args;
4670 memset(&args, 0, sizeof(args));
4673 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
4675 ret = sc->handshake_func(s);
4681 void SSL_set_accept_state(SSL *s)
4683 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4685 #ifndef OPENSSL_NO_QUIC
4687 ossl_quic_set_accept_state(s);
4694 ossl_statem_clear(sc);
4695 sc->handshake_func = s->method->ssl_accept;
4696 /* Ignore return value. Its a void public API function */
4697 clear_record_layer(sc);
4700 void SSL_set_connect_state(SSL *s)
4702 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4704 #ifndef OPENSSL_NO_QUIC
4706 ossl_quic_set_connect_state(s);
4713 ossl_statem_clear(sc);
4714 sc->handshake_func = s->method->ssl_connect;
4715 /* Ignore return value. Its a void public API function */
4716 clear_record_layer(sc);
4719 int ssl_undefined_function(SSL *s)
4721 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4725 int ssl_undefined_void_function(void)
4727 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4731 int ssl_undefined_const_function(const SSL *s)
4736 const SSL_METHOD *ssl_bad_method(int ver)
4738 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4742 const char *ssl_protocol_to_string(int version)
4746 case TLS1_3_VERSION:
4749 case TLS1_2_VERSION:
4752 case TLS1_1_VERSION:
4767 case DTLS1_2_VERSION:
4775 const char *SSL_get_version(const SSL *s)
4777 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4779 #ifndef OPENSSL_NO_QUIC
4780 /* We only support QUICv1 - so if its QUIC its QUICv1 */
4781 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
4788 return ssl_protocol_to_string(sc->version);
4791 __owur int SSL_get_handshake_rtt(const SSL *s, uint64_t *rtt)
4793 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4797 if (sc->ts_msg_write.t <= 0 || sc->ts_msg_read.t <= 0)
4798 return 0; /* data not (yet) available */
4799 if (sc->ts_msg_read.t < sc->ts_msg_write.t)
4802 *rtt = ossl_time2us(ossl_time_subtract(sc->ts_msg_read, sc->ts_msg_write));
4806 static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
4808 STACK_OF(X509_NAME) *sk;
4817 if ((sk = sk_X509_NAME_new_null()) == NULL)
4819 for (i = 0; i < sk_X509_NAME_num(src); i++) {
4820 xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
4822 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4825 if (sk_X509_NAME_insert(sk, xn, i) == 0) {
4827 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4836 SSL *SSL_dup(SSL *s)
4840 /* TODO(QUIC): Add a SSL_METHOD function for duplication */
4841 SSL_CONNECTION *retsc;
4842 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4847 /* If we're not quiescent, just up_ref! */
4848 if (!SSL_in_init(s) || !SSL_in_before(s)) {
4849 CRYPTO_UP_REF(&s->references, &i);
4854 * Otherwise, copy configuration state, and session if set.
4856 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
4858 if ((retsc = SSL_CONNECTION_FROM_SSL_ONLY(ret)) == NULL)
4861 if (sc->session != NULL) {
4863 * Arranges to share the same session via up_ref. This "copies"
4864 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4866 if (!SSL_copy_session_id(ret, s))
4870 * No session has been established yet, so we have to expect that
4871 * s->cert or ret->cert will be changed later -- they should not both
4872 * point to the same object, and thus we can't use
4873 * SSL_copy_session_id.
4875 if (!SSL_set_ssl_method(ret, s->method))
4878 if (sc->cert != NULL) {
4879 ssl_cert_free(retsc->cert);
4880 retsc->cert = ssl_cert_dup(sc->cert);
4881 if (retsc->cert == NULL)
4885 if (!SSL_set_session_id_context(ret, sc->sid_ctx,
4886 (int)sc->sid_ctx_length))
4890 if (!ssl_dane_dup(retsc, sc))
4892 retsc->version = sc->version;
4893 retsc->options = sc->options;
4894 retsc->min_proto_version = sc->min_proto_version;
4895 retsc->max_proto_version = sc->max_proto_version;
4896 retsc->mode = sc->mode;
4897 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
4898 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
4899 retsc->msg_callback = sc->msg_callback;
4900 retsc->msg_callback_arg = sc->msg_callback_arg;
4901 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
4902 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
4903 retsc->generate_session_id = sc->generate_session_id;
4905 SSL_set_info_callback(ret, SSL_get_info_callback(s));
4907 /* copy app data, a little dangerous perhaps */
4908 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
4911 retsc->server = sc->server;
4912 if (sc->handshake_func) {
4914 SSL_set_accept_state(ret);
4916 SSL_set_connect_state(ret);
4918 retsc->shutdown = sc->shutdown;
4919 retsc->hit = sc->hit;
4921 retsc->default_passwd_callback = sc->default_passwd_callback;
4922 retsc->default_passwd_callback_userdata = sc->default_passwd_callback_userdata;
4924 X509_VERIFY_PARAM_inherit(retsc->param, sc->param);
4926 /* dup the cipher_list and cipher_list_by_id stacks */
4927 if (sc->cipher_list != NULL) {
4928 if ((retsc->cipher_list = sk_SSL_CIPHER_dup(sc->cipher_list)) == NULL)
4931 if (sc->cipher_list_by_id != NULL)
4932 if ((retsc->cipher_list_by_id = sk_SSL_CIPHER_dup(sc->cipher_list_by_id))
4936 /* Dup the client_CA list */
4937 if (!dup_ca_names(&retsc->ca_names, sc->ca_names)
4938 || !dup_ca_names(&retsc->client_ca_names, sc->client_ca_names))
4948 X509 *SSL_get_certificate(const SSL *s)
4950 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4955 if (sc->cert != NULL)
4956 return sc->cert->key->x509;
4961 EVP_PKEY *SSL_get_privatekey(const SSL *s)
4963 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4968 if (sc->cert != NULL)
4969 return sc->cert->key->privatekey;
4974 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
4976 if (ctx->cert != NULL)
4977 return ctx->cert->key->x509;
4982 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
4984 if (ctx->cert != NULL)
4985 return ctx->cert->key->privatekey;
4990 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
4992 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4997 if ((sc->session != NULL) && (sc->session->cipher != NULL))
4998 return sc->session->cipher;
5002 const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
5004 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5009 return sc->s3.tmp.new_cipher;
5012 const COMP_METHOD *SSL_get_current_compression(const SSL *s)
5014 #ifndef OPENSSL_NO_COMP
5015 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5020 return sc->rlayer.wrlmethod->get_compression(sc->rlayer.wrl);
5026 const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
5028 #ifndef OPENSSL_NO_COMP
5029 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5034 return sc->rlayer.rrlmethod->get_compression(sc->rlayer.rrl);
5040 int ssl_init_wbio_buffer(SSL_CONNECTION *s)
5044 if (s->bbio != NULL) {
5045 /* Already buffered. */
5049 bbio = BIO_new(BIO_f_buffer());
5050 if (bbio == NULL || BIO_set_read_buffer_size(bbio, 1) <= 0) {
5052 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
5056 s->wbio = BIO_push(bbio, s->wbio);
5058 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5063 int ssl_free_wbio_buffer(SSL_CONNECTION *s)
5065 /* callers ensure s is never null */
5066 if (s->bbio == NULL)
5069 s->wbio = BIO_pop(s->wbio);
5070 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5078 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
5080 ctx->quiet_shutdown = mode;
5083 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
5085 return ctx->quiet_shutdown;
5088 void SSL_set_quiet_shutdown(SSL *s, int mode)
5090 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5092 /* TODO(QUIC): Do we want this for QUIC? */
5096 sc->quiet_shutdown = mode;
5099 int SSL_get_quiet_shutdown(const SSL *s)
5101 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5103 /* TODO(QUIC): Do we want this for QUIC? */
5107 return sc->quiet_shutdown;
5110 void SSL_set_shutdown(SSL *s, int mode)
5112 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5114 /* TODO(QUIC): Do we want this for QUIC? */
5118 sc->shutdown = mode;
5121 int SSL_get_shutdown(const SSL *s)
5123 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5125 /* TODO(QUIC): Do we want this for QUIC? */
5129 return sc->shutdown;
5132 int SSL_version(const SSL *s)
5134 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5136 #ifndef OPENSSL_NO_QUIC
5137 /* We only support QUICv1 - so if its QUIC its QUICv1 */
5138 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
5139 return OSSL_QUIC1_VERSION;
5141 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
5148 int SSL_client_version(const SSL *s)
5150 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5152 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
5156 return sc->client_version;
5159 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
5164 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
5167 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
5169 /* TODO(QUIC): Do we need this for QUIC support? */
5173 if (ssl->ctx == ctx)
5176 ctx = sc->session_ctx;
5177 new_cert = ssl_cert_dup(ctx->cert);
5178 if (new_cert == NULL) {
5182 if (!custom_exts_copy_flags(&new_cert->custext, &sc->cert->custext)) {
5183 ssl_cert_free(new_cert);
5187 ssl_cert_free(sc->cert);
5188 sc->cert = new_cert;
5191 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
5192 * so setter APIs must prevent invalid lengths from entering the system.
5194 if (!ossl_assert(sc->sid_ctx_length <= sizeof(sc->sid_ctx)))
5198 * If the session ID context matches that of the parent SSL_CTX,
5199 * inherit it from the new SSL_CTX as well. If however the context does
5200 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
5201 * leave it unchanged.
5203 if ((ssl->ctx != NULL) &&
5204 (sc->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
5205 (memcmp(sc->sid_ctx, ssl->ctx->sid_ctx, sc->sid_ctx_length) == 0)) {
5206 sc->sid_ctx_length = ctx->sid_ctx_length;
5207 memcpy(&sc->sid_ctx, &ctx->sid_ctx, sizeof(sc->sid_ctx));
5210 SSL_CTX_up_ref(ctx);
5211 SSL_CTX_free(ssl->ctx); /* decrement reference count */
5217 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
5219 return X509_STORE_set_default_paths_ex(ctx->cert_store, ctx->libctx,
5223 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
5225 X509_LOOKUP *lookup;
5227 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
5231 /* We ignore errors, in case the directory doesn't exist */
5234 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
5241 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
5243 X509_LOOKUP *lookup;
5245 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
5249 /* We ignore errors, in case the file doesn't exist */
5252 X509_LOOKUP_load_file_ex(lookup, NULL, X509_FILETYPE_DEFAULT, ctx->libctx,
5260 int SSL_CTX_set_default_verify_store(SSL_CTX *ctx)
5262 X509_LOOKUP *lookup;
5264 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_store());
5268 /* We ignore errors, in case the directory doesn't exist */
5271 X509_LOOKUP_add_store_ex(lookup, NULL, ctx->libctx, ctx->propq);
5278 int SSL_CTX_load_verify_file(SSL_CTX *ctx, const char *CAfile)
5280 return X509_STORE_load_file_ex(ctx->cert_store, CAfile, ctx->libctx,
5284 int SSL_CTX_load_verify_dir(SSL_CTX *ctx, const char *CApath)
5286 return X509_STORE_load_path(ctx->cert_store, CApath);
5289 int SSL_CTX_load_verify_store(SSL_CTX *ctx, const char *CAstore)
5291 return X509_STORE_load_store_ex(ctx->cert_store, CAstore, ctx->libctx,
5295 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
5298 if (CAfile == NULL && CApath == NULL)
5300 if (CAfile != NULL && !SSL_CTX_load_verify_file(ctx, CAfile))
5302 if (CApath != NULL && !SSL_CTX_load_verify_dir(ctx, CApath))
5307 void SSL_set_info_callback(SSL *ssl,
5308 void (*cb) (const SSL *ssl, int type, int val))
5310 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5315 sc->info_callback = cb;
5319 * One compiler (Diab DCC) doesn't like argument names in returned function
5322 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
5325 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5330 return sc->info_callback;
5333 void SSL_set_verify_result(SSL *ssl, long arg)
5335 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5340 sc->verify_result = arg;
5343 long SSL_get_verify_result(const SSL *ssl)
5345 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5350 return sc->verify_result;
5353 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
5355 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5361 return sizeof(sc->s3.client_random);
5362 if (outlen > sizeof(sc->s3.client_random))
5363 outlen = sizeof(sc->s3.client_random);
5364 memcpy(out, sc->s3.client_random, outlen);
5368 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
5370 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5376 return sizeof(sc->s3.server_random);
5377 if (outlen > sizeof(sc->s3.server_random))
5378 outlen = sizeof(sc->s3.server_random);
5379 memcpy(out, sc->s3.server_random, outlen);
5383 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
5384 unsigned char *out, size_t outlen)
5387 return session->master_key_length;
5388 if (outlen > session->master_key_length)
5389 outlen = session->master_key_length;
5390 memcpy(out, session->master_key, outlen);
5394 int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
5397 if (len > sizeof(sess->master_key))
5400 memcpy(sess->master_key, in, len);
5401 sess->master_key_length = len;
5406 int SSL_set_ex_data(SSL *s, int idx, void *arg)
5408 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5411 void *SSL_get_ex_data(const SSL *s, int idx)
5413 return CRYPTO_get_ex_data(&s->ex_data, idx);
5416 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
5418 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5421 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
5423 return CRYPTO_get_ex_data(&s->ex_data, idx);
5426 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
5428 return ctx->cert_store;
5431 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
5433 X509_STORE_free(ctx->cert_store);
5434 ctx->cert_store = store;
5437 void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
5440 X509_STORE_up_ref(store);
5441 SSL_CTX_set_cert_store(ctx, store);
5444 int SSL_want(const SSL *s)
5446 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5454 #ifndef OPENSSL_NO_PSK
5455 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
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(ctx->cert->psk_identity_hint);
5462 if (identity_hint != NULL) {
5463 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5464 if (ctx->cert->psk_identity_hint == NULL)
5467 ctx->cert->psk_identity_hint = NULL;
5471 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
5473 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5478 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5479 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5482 OPENSSL_free(sc->cert->psk_identity_hint);
5483 if (identity_hint != NULL) {
5484 sc->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5485 if (sc->cert->psk_identity_hint == NULL)
5488 sc->cert->psk_identity_hint = NULL;
5492 const char *SSL_get_psk_identity_hint(const SSL *s)
5494 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5496 if (sc == NULL || sc->session == NULL)
5499 return sc->session->psk_identity_hint;
5502 const char *SSL_get_psk_identity(const SSL *s)
5504 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5506 if (sc == NULL || sc->session == NULL)
5509 return sc->session->psk_identity;
5512 void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
5514 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5519 sc->psk_client_callback = cb;
5522 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
5524 ctx->psk_client_callback = cb;
5527 void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
5529 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5534 sc->psk_server_callback = cb;
5537 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
5539 ctx->psk_server_callback = cb;
5543 void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
5545 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5550 sc->psk_find_session_cb = cb;
5553 void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
5554 SSL_psk_find_session_cb_func cb)
5556 ctx->psk_find_session_cb = cb;
5559 void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
5561 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5566 sc->psk_use_session_cb = cb;
5569 void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
5570 SSL_psk_use_session_cb_func cb)
5572 ctx->psk_use_session_cb = cb;
5575 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
5576 void (*cb) (int write_p, int version,
5577 int content_type, const void *buf,
5578 size_t len, SSL *ssl, void *arg))
5580 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5583 void SSL_set_msg_callback(SSL *ssl,
5584 void (*cb) (int write_p, int version,
5585 int content_type, const void *buf,
5586 size_t len, SSL *ssl, void *arg))
5588 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5591 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
5592 int (*cb) (SSL *ssl,
5596 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5597 (void (*)(void))cb);
5600 void SSL_set_not_resumable_session_callback(SSL *ssl,
5601 int (*cb) (SSL *ssl,
5602 int is_forward_secure))
5604 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5605 (void (*)(void))cb);
5608 void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
5609 size_t (*cb) (SSL *ssl, int type,
5610 size_t len, void *arg))
5612 ctx->record_padding_cb = cb;
5615 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
5617 ctx->record_padding_arg = arg;
5620 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
5622 return ctx->record_padding_arg;
5625 int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
5627 /* block size of 0 or 1 is basically no padding */
5628 if (block_size == 1)
5629 ctx->block_padding = 0;
5630 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5631 ctx->block_padding = block_size;
5637 int SSL_set_record_padding_callback(SSL *ssl,
5638 size_t (*cb) (SSL *ssl, int type,
5639 size_t len, void *arg))
5642 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5647 b = SSL_get_wbio(ssl);
5648 if (b == NULL || !BIO_get_ktls_send(b)) {
5649 sc->rlayer.record_padding_cb = cb;
5655 void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
5657 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5662 sc->rlayer.record_padding_arg = arg;
5665 void *SSL_get_record_padding_callback_arg(const SSL *ssl)
5667 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5672 return sc->rlayer.record_padding_arg;
5675 int SSL_set_block_padding(SSL *ssl, size_t block_size)
5677 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5682 /* block size of 0 or 1 is basically no padding */
5683 if (block_size == 1)
5684 sc->rlayer.block_padding = 0;
5685 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5686 sc->rlayer.block_padding = block_size;
5692 int SSL_set_num_tickets(SSL *s, size_t num_tickets)
5694 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5699 sc->num_tickets = num_tickets;
5704 size_t SSL_get_num_tickets(const SSL *s)
5706 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5711 return sc->num_tickets;
5714 int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
5716 ctx->num_tickets = num_tickets;
5721 size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
5723 return ctx->num_tickets;
5726 /* Retrieve handshake hashes */
5727 int ssl_handshake_hash(SSL_CONNECTION *s,
5728 unsigned char *out, size_t outlen,
5731 EVP_MD_CTX *ctx = NULL;
5732 EVP_MD_CTX *hdgst = s->s3.handshake_dgst;
5733 int hashleni = EVP_MD_CTX_get_size(hdgst);
5736 if (hashleni < 0 || (size_t)hashleni > outlen) {
5737 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5741 ctx = EVP_MD_CTX_new();
5743 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5747 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
5748 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
5749 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5753 *hashlen = hashleni;
5757 EVP_MD_CTX_free(ctx);
5761 int SSL_session_reused(const SSL *s)
5763 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5771 int SSL_is_server(const SSL *s)
5773 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5781 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
5782 void SSL_set_debug(SSL *s, int debug)
5784 /* Old function was do-nothing anyway... */
5790 void SSL_set_security_level(SSL *s, int level)
5792 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5797 sc->cert->sec_level = level;
5800 int SSL_get_security_level(const SSL *s)
5802 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5807 return sc->cert->sec_level;
5810 void SSL_set_security_callback(SSL *s,
5811 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5812 int op, int bits, int nid,
5813 void *other, void *ex))
5815 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5820 sc->cert->sec_cb = cb;
5823 int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
5824 const SSL_CTX *ctx, int op,
5825 int bits, int nid, void *other,
5827 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5832 return sc->cert->sec_cb;
5835 void SSL_set0_security_ex_data(SSL *s, void *ex)
5837 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5842 sc->cert->sec_ex = ex;
5845 void *SSL_get0_security_ex_data(const SSL *s)
5847 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5852 return sc->cert->sec_ex;
5855 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
5857 ctx->cert->sec_level = level;
5860 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
5862 return ctx->cert->sec_level;
5865 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
5866 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5867 int op, int bits, int nid,
5868 void *other, void *ex))
5870 ctx->cert->sec_cb = cb;
5873 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
5879 return ctx->cert->sec_cb;
5882 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
5884 ctx->cert->sec_ex = ex;
5887 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
5889 return ctx->cert->sec_ex;
5892 uint64_t SSL_CTX_get_options(const SSL_CTX *ctx)
5894 return ctx->options;
5897 uint64_t SSL_get_options(const SSL *s)
5899 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5901 #ifndef OPENSSL_NO_QUIC
5903 return ossl_quic_get_options(s);
5912 uint64_t SSL_CTX_set_options(SSL_CTX *ctx, uint64_t op)
5914 return ctx->options |= op;
5917 uint64_t SSL_set_options(SSL *s, uint64_t op)
5920 OSSL_PARAM options[2], *opts = options;
5922 #ifndef OPENSSL_NO_QUIC
5924 return ossl_quic_set_options(s, op);
5927 sc = SSL_CONNECTION_FROM_SSL(s);
5933 *opts++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS,
5935 *opts = OSSL_PARAM_construct_end();
5937 /* Ignore return value */
5938 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
5943 uint64_t SSL_CTX_clear_options(SSL_CTX *ctx, uint64_t op)
5945 return ctx->options &= ~op;
5948 uint64_t SSL_clear_options(SSL *s, uint64_t op)
5950 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5952 #ifndef OPENSSL_NO_QUIC
5954 return ossl_quic_clear_options(s, op);
5960 return sc->options &= ~op;
5963 STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
5965 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5970 return sc->verified_chain;
5973 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
5975 #ifndef OPENSSL_NO_CT
5978 * Moves SCTs from the |src| stack to the |dst| stack.
5979 * The source of each SCT will be set to |origin|.
5980 * If |dst| points to a NULL pointer, a new stack will be created and owned by
5982 * Returns the number of SCTs moved, or a negative integer if an error occurs.
5984 static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
5985 sct_source_t origin)
5991 *dst = sk_SCT_new_null();
5993 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
5998 while ((sct = sk_SCT_pop(src)) != NULL) {
5999 if (SCT_set_source(sct, origin) != 1)
6002 if (sk_SCT_push(*dst, sct) <= 0)
6010 sk_SCT_push(src, sct); /* Put the SCT back */
6015 * Look for data collected during ServerHello and parse if found.
6016 * Returns the number of SCTs extracted.
6018 static int ct_extract_tls_extension_scts(SSL_CONNECTION *s)
6020 int scts_extracted = 0;
6022 if (s->ext.scts != NULL) {
6023 const unsigned char *p = s->ext.scts;
6024 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
6026 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
6028 SCT_LIST_free(scts);
6031 return scts_extracted;
6035 * Checks for an OCSP response and then attempts to extract any SCTs found if it
6036 * contains an SCT X509 extension. They will be stored in |s->scts|.
6038 * - The number of SCTs extracted, assuming an OCSP response exists.
6039 * - 0 if no OCSP response exists or it contains no SCTs.
6040 * - A negative integer if an error occurs.
6042 static int ct_extract_ocsp_response_scts(SSL_CONNECTION *s)
6044 # ifndef OPENSSL_NO_OCSP
6045 int scts_extracted = 0;
6046 const unsigned char *p;
6047 OCSP_BASICRESP *br = NULL;
6048 OCSP_RESPONSE *rsp = NULL;
6049 STACK_OF(SCT) *scts = NULL;
6052 if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
6055 p = s->ext.ocsp.resp;
6056 rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
6060 br = OCSP_response_get1_basic(rsp);
6064 for (i = 0; i < OCSP_resp_count(br); ++i) {
6065 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
6071 OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
6073 ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
6074 if (scts_extracted < 0)
6078 SCT_LIST_free(scts);
6079 OCSP_BASICRESP_free(br);
6080 OCSP_RESPONSE_free(rsp);
6081 return scts_extracted;
6083 /* Behave as if no OCSP response exists */
6089 * Attempts to extract SCTs from the peer certificate.
6090 * Return the number of SCTs extracted, or a negative integer if an error
6093 static int ct_extract_x509v3_extension_scts(SSL_CONNECTION *s)
6095 int scts_extracted = 0;
6096 X509 *cert = s->session != NULL ? s->session->peer : NULL;
6099 STACK_OF(SCT) *scts =
6100 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
6103 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
6105 SCT_LIST_free(scts);
6108 return scts_extracted;
6112 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
6113 * response (if it exists) and X509v3 extensions in the certificate.
6114 * Returns NULL if an error occurs.
6116 const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
6118 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6123 if (!sc->scts_parsed) {
6124 if (ct_extract_tls_extension_scts(sc) < 0 ||
6125 ct_extract_ocsp_response_scts(sc) < 0 ||
6126 ct_extract_x509v3_extension_scts(sc) < 0)
6129 sc->scts_parsed = 1;
6136 static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx,
6137 const STACK_OF(SCT) *scts, void *unused_arg)
6142 static int ct_strict(const CT_POLICY_EVAL_CTX * ctx,
6143 const STACK_OF(SCT) *scts, void *unused_arg)
6145 int count = scts != NULL ? sk_SCT_num(scts) : 0;
6148 for (i = 0; i < count; ++i) {
6149 SCT *sct = sk_SCT_value(scts, i);
6150 int status = SCT_get_validation_status(sct);
6152 if (status == SCT_VALIDATION_STATUS_VALID)
6155 ERR_raise(ERR_LIB_SSL, SSL_R_NO_VALID_SCTS);
6159 int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
6162 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6168 * Since code exists that uses the custom extension handler for CT, look
6169 * for this and throw an error if they have already registered to use CT.
6171 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
6172 TLSEXT_TYPE_signed_certificate_timestamp))
6174 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
6178 if (callback != NULL) {
6180 * If we are validating CT, then we MUST accept SCTs served via OCSP
6182 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
6186 sc->ct_validation_callback = callback;
6187 sc->ct_validation_callback_arg = arg;
6192 int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
6193 ssl_ct_validation_cb callback, void *arg)
6196 * Since code exists that uses the custom extension handler for CT, look for
6197 * this and throw an error if they have already registered to use CT.
6199 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
6200 TLSEXT_TYPE_signed_certificate_timestamp))
6202 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
6206 ctx->ct_validation_callback = callback;
6207 ctx->ct_validation_callback_arg = arg;
6211 int SSL_ct_is_enabled(const SSL *s)
6213 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6218 return sc->ct_validation_callback != NULL;
6221 int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
6223 return ctx->ct_validation_callback != NULL;
6226 int ssl_validate_ct(SSL_CONNECTION *s)
6229 X509 *cert = s->session != NULL ? s->session->peer : NULL;
6231 SSL_DANE *dane = &s->dane;
6232 CT_POLICY_EVAL_CTX *ctx = NULL;
6233 const STACK_OF(SCT) *scts;
6236 * If no callback is set, the peer is anonymous, or its chain is invalid,
6237 * skip SCT validation - just return success. Applications that continue
6238 * handshakes without certificates, with unverified chains, or pinned leaf
6239 * certificates are outside the scope of the WebPKI and CT.
6241 * The above exclusions notwithstanding the vast majority of peers will
6242 * have rather ordinary certificate chains validated by typical
6243 * applications that perform certificate verification and therefore will
6244 * process SCTs when enabled.
6246 if (s->ct_validation_callback == NULL || cert == NULL ||
6247 s->verify_result != X509_V_OK ||
6248 s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
6252 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
6253 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
6255 if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
6256 switch (dane->mtlsa->usage) {
6257 case DANETLS_USAGE_DANE_TA:
6258 case DANETLS_USAGE_DANE_EE:
6263 ctx = CT_POLICY_EVAL_CTX_new_ex(SSL_CONNECTION_GET_CTX(s)->libctx,
6264 SSL_CONNECTION_GET_CTX(s)->propq);
6266 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CT_LIB);
6270 issuer = sk_X509_value(s->verified_chain, 1);
6271 CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
6272 CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
6273 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx,
6274 SSL_CONNECTION_GET_CTX(s)->ctlog_store);
6275 CT_POLICY_EVAL_CTX_set_time(
6276 ctx, (uint64_t)SSL_SESSION_get_time(s->session) * 1000);
6278 scts = SSL_get0_peer_scts(SSL_CONNECTION_GET_SSL(s));
6281 * This function returns success (> 0) only when all the SCTs are valid, 0
6282 * when some are invalid, and < 0 on various internal errors (out of
6283 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
6284 * reason to abort the handshake, that decision is up to the callback.
6285 * Therefore, we error out only in the unexpected case that the return
6286 * value is negative.
6288 * XXX: One might well argue that the return value of this function is an
6289 * unfortunate design choice. Its job is only to determine the validation
6290 * status of each of the provided SCTs. So long as it correctly separates
6291 * the wheat from the chaff it should return success. Failure in this case
6292 * ought to correspond to an inability to carry out its duties.
6294 if (SCT_LIST_validate(scts, ctx) < 0) {
6295 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_SCT_VERIFICATION_FAILED);
6299 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
6301 ret = 0; /* This function returns 0 on failure */
6303 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_CALLBACK_FAILED);
6306 CT_POLICY_EVAL_CTX_free(ctx);
6308 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
6309 * failure return code here. Also the application may wish the complete
6310 * the handshake, and then disconnect cleanly at a higher layer, after
6311 * checking the verification status of the completed connection.
6313 * We therefore force a certificate verification failure which will be
6314 * visible via SSL_get_verify_result() and cached as part of any resumed
6317 * Note: the permissive callback is for information gathering only, always
6318 * returns success, and does not affect verification status. Only the
6319 * strict callback or a custom application-specified callback can trigger
6320 * connection failure or record a verification error.
6323 s->verify_result = X509_V_ERR_NO_VALID_SCTS;
6327 int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
6329 switch (validation_mode) {
6331 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6333 case SSL_CT_VALIDATION_PERMISSIVE:
6334 return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
6335 case SSL_CT_VALIDATION_STRICT:
6336 return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
6340 int SSL_enable_ct(SSL *s, int validation_mode)
6342 switch (validation_mode) {
6344 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6346 case SSL_CT_VALIDATION_PERMISSIVE:
6347 return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
6348 case SSL_CT_VALIDATION_STRICT:
6349 return SSL_set_ct_validation_callback(s, ct_strict, NULL);
6353 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
6355 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
6358 int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
6360 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
6363 void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs)
6365 CTLOG_STORE_free(ctx->ctlog_store);
6366 ctx->ctlog_store = logs;
6369 const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
6371 return ctx->ctlog_store;
6374 #endif /* OPENSSL_NO_CT */
6376 void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
6379 c->client_hello_cb = cb;
6380 c->client_hello_cb_arg = arg;
6383 int SSL_client_hello_isv2(SSL *s)
6385 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6390 if (sc->clienthello == NULL)
6392 return sc->clienthello->isv2;
6395 unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
6397 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6402 if (sc->clienthello == NULL)
6404 return sc->clienthello->legacy_version;
6407 size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out)
6409 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6414 if (sc->clienthello == NULL)
6417 *out = sc->clienthello->random;
6418 return SSL3_RANDOM_SIZE;
6421 size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
6423 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6428 if (sc->clienthello == NULL)
6431 *out = sc->clienthello->session_id;
6432 return sc->clienthello->session_id_len;
6435 size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
6437 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6442 if (sc->clienthello == NULL)
6445 *out = PACKET_data(&sc->clienthello->ciphersuites);
6446 return PACKET_remaining(&sc->clienthello->ciphersuites);
6449 size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
6451 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6456 if (sc->clienthello == NULL)
6459 *out = sc->clienthello->compressions;
6460 return sc->clienthello->compressions_len;
6463 int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
6468 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6473 if (sc->clienthello == NULL || out == NULL || outlen == NULL)
6475 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6476 ext = sc->clienthello->pre_proc_exts + i;
6485 if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL)
6487 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6488 ext = sc->clienthello->pre_proc_exts + i;
6490 if (ext->received_order >= num)
6492 present[ext->received_order] = ext->type;
6499 OPENSSL_free(present);
6503 int SSL_client_hello_get_extension_order(SSL *s, uint16_t *exts, size_t *num_exts)
6507 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6512 if (sc->clienthello == NULL || num_exts == NULL)
6514 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6515 ext = sc->clienthello->pre_proc_exts + i;
6527 if (*num_exts < num)
6529 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6530 ext = sc->clienthello->pre_proc_exts + i;
6532 if (ext->received_order >= num)
6534 exts[ext->received_order] = ext->type;
6541 int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
6546 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6551 if (sc->clienthello == NULL)
6553 for (i = 0; i < sc->clienthello->pre_proc_exts_len; ++i) {
6554 r = sc->clienthello->pre_proc_exts + i;
6555 if (r->present && r->type == type) {
6557 *out = PACKET_data(&r->data);
6559 *outlen = PACKET_remaining(&r->data);
6566 int SSL_free_buffers(SSL *ssl)
6569 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6576 return rl->rrlmethod->free_buffers(rl->rrl)
6577 && rl->wrlmethod->free_buffers(rl->wrl);
6580 int SSL_alloc_buffers(SSL *ssl)
6583 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6590 return rl->rrlmethod->alloc_buffers(rl->rrl)
6591 && rl->wrlmethod->alloc_buffers(rl->wrl);
6594 void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
6596 ctx->keylog_callback = cb;
6599 SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
6601 return ctx->keylog_callback;
6604 static int nss_keylog_int(const char *prefix,
6606 const uint8_t *parameter_1,
6607 size_t parameter_1_len,
6608 const uint8_t *parameter_2,
6609 size_t parameter_2_len)
6612 char *cursor = NULL;
6616 SSL_CTX *sctx = SSL_CONNECTION_GET_CTX(sc);
6618 if (sctx->keylog_callback == NULL)
6622 * Our output buffer will contain the following strings, rendered with
6623 * space characters in between, terminated by a NULL character: first the
6624 * prefix, then the first parameter, then the second parameter. The
6625 * meaning of each parameter depends on the specific key material being
6626 * logged. Note that the first and second parameters are encoded in
6627 * hexadecimal, so we need a buffer that is twice their lengths.
6629 prefix_len = strlen(prefix);
6630 out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
6631 if ((out = cursor = OPENSSL_malloc(out_len)) == NULL)
6634 strcpy(cursor, prefix);
6635 cursor += prefix_len;
6638 for (i = 0; i < parameter_1_len; i++) {
6639 sprintf(cursor, "%02x", parameter_1[i]);
6644 for (i = 0; i < parameter_2_len; i++) {
6645 sprintf(cursor, "%02x", parameter_2[i]);
6650 sctx->keylog_callback(SSL_CONNECTION_GET_SSL(sc), (const char *)out);
6651 OPENSSL_clear_free(out, out_len);
6656 int ssl_log_rsa_client_key_exchange(SSL_CONNECTION *sc,
6657 const uint8_t *encrypted_premaster,
6658 size_t encrypted_premaster_len,
6659 const uint8_t *premaster,
6660 size_t premaster_len)
6662 if (encrypted_premaster_len < 8) {
6663 SSLfatal(sc, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6667 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
6668 return nss_keylog_int("RSA",
6670 encrypted_premaster,
6676 int ssl_log_secret(SSL_CONNECTION *sc,
6678 const uint8_t *secret,
6681 return nss_keylog_int(label,
6683 sc->s3.client_random,
6689 #define SSLV2_CIPHER_LEN 3
6691 int ssl_cache_cipherlist(SSL_CONNECTION *s, PACKET *cipher_suites, int sslv2format)
6695 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6697 if (PACKET_remaining(cipher_suites) == 0) {
6698 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6702 if (PACKET_remaining(cipher_suites) % n != 0) {
6703 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6707 OPENSSL_free(s->s3.tmp.ciphers_raw);
6708 s->s3.tmp.ciphers_raw = NULL;
6709 s->s3.tmp.ciphers_rawlen = 0;
6712 size_t numciphers = PACKET_remaining(cipher_suites) / n;
6713 PACKET sslv2ciphers = *cipher_suites;
6714 unsigned int leadbyte;
6718 * We store the raw ciphers list in SSLv3+ format so we need to do some
6719 * preprocessing to convert the list first. If there are any SSLv2 only
6720 * ciphersuites with a non-zero leading byte then we are going to
6721 * slightly over allocate because we won't store those. But that isn't a
6724 raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
6725 s->s3.tmp.ciphers_raw = raw;
6727 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6730 for (s->s3.tmp.ciphers_rawlen = 0;
6731 PACKET_remaining(&sslv2ciphers) > 0;
6732 raw += TLS_CIPHER_LEN) {
6733 if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
6735 && !PACKET_copy_bytes(&sslv2ciphers, raw,
6738 && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
6739 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_PACKET);
6740 OPENSSL_free(s->s3.tmp.ciphers_raw);
6741 s->s3.tmp.ciphers_raw = NULL;
6742 s->s3.tmp.ciphers_rawlen = 0;
6746 s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN;
6748 } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw,
6749 &s->s3.tmp.ciphers_rawlen)) {
6750 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6756 int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
6757 int isv2format, STACK_OF(SSL_CIPHER) **sk,
6758 STACK_OF(SSL_CIPHER) **scsvs)
6761 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6766 if (!PACKET_buf_init(&pkt, bytes, len))
6768 return ossl_bytes_to_cipher_list(sc, &pkt, sk, scsvs, isv2format, 0);
6771 int ossl_bytes_to_cipher_list(SSL_CONNECTION *s, PACKET *cipher_suites,
6772 STACK_OF(SSL_CIPHER) **skp,
6773 STACK_OF(SSL_CIPHER) **scsvs_out,
6774 int sslv2format, int fatal)
6776 const SSL_CIPHER *c;
6777 STACK_OF(SSL_CIPHER) *sk = NULL;
6778 STACK_OF(SSL_CIPHER) *scsvs = NULL;
6780 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
6781 unsigned char cipher[SSLV2_CIPHER_LEN];
6783 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6785 if (PACKET_remaining(cipher_suites) == 0) {
6787 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6789 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHERS_SPECIFIED);
6793 if (PACKET_remaining(cipher_suites) % n != 0) {
6795 SSLfatal(s, SSL_AD_DECODE_ERROR,
6796 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6798 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6802 sk = sk_SSL_CIPHER_new_null();
6803 scsvs = sk_SSL_CIPHER_new_null();
6804 if (sk == NULL || scsvs == NULL) {
6806 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6808 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6812 while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
6814 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
6815 * first byte set to zero, while true SSLv2 ciphers have a non-zero
6816 * first byte. We don't support any true SSLv2 ciphers, so skip them.
6818 if (sslv2format && cipher[0] != '\0')
6821 /* For SSLv2-compat, ignore leading 0-byte. */
6822 c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
6824 if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
6825 (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
6827 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6829 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6834 if (PACKET_remaining(cipher_suites) > 0) {
6836 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_LENGTH);
6838 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
6845 sk_SSL_CIPHER_free(sk);
6846 if (scsvs_out != NULL)
6849 sk_SSL_CIPHER_free(scsvs);
6852 sk_SSL_CIPHER_free(sk);
6853 sk_SSL_CIPHER_free(scsvs);
6857 int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
6859 ctx->max_early_data = max_early_data;
6864 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
6866 return ctx->max_early_data;
6869 int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
6871 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6876 sc->max_early_data = max_early_data;
6881 uint32_t SSL_get_max_early_data(const SSL *s)
6883 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6888 return sc->max_early_data;
6891 int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
6893 ctx->recv_max_early_data = recv_max_early_data;
6898 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
6900 return ctx->recv_max_early_data;
6903 int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
6905 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6910 sc->recv_max_early_data = recv_max_early_data;
6915 uint32_t SSL_get_recv_max_early_data(const SSL *s)
6917 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6922 return sc->recv_max_early_data;
6925 __owur unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION *sc)
6927 /* Return any active Max Fragment Len extension */
6928 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session))
6929 return GET_MAX_FRAGMENT_LENGTH(sc->session);
6931 /* return current SSL connection setting */
6932 return sc->max_send_fragment;
6935 __owur unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION *sc)
6937 /* Return a value regarding an active Max Fragment Len extension */
6938 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session)
6939 && sc->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(sc->session))
6940 return GET_MAX_FRAGMENT_LENGTH(sc->session);
6942 /* else limit |split_send_fragment| to current |max_send_fragment| */
6943 if (sc->split_send_fragment > sc->max_send_fragment)
6944 return sc->max_send_fragment;
6946 /* return current SSL connection setting */
6947 return sc->split_send_fragment;
6950 int SSL_stateless(SSL *s)
6953 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6955 /* TODO(QUIC): This will need further work. */
6959 /* Ensure there is no state left over from a previous invocation */
6965 sc->s3.flags |= TLS1_FLAGS_STATELESS;
6966 ret = SSL_accept(s);
6967 sc->s3.flags &= ~TLS1_FLAGS_STATELESS;
6969 if (ret > 0 && sc->ext.cookieok)
6972 if (sc->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(sc))
6978 void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
6980 ctx->pha_enabled = val;
6983 void SSL_set_post_handshake_auth(SSL *ssl, int val)
6985 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6986 #ifndef OPENSSL_NO_QUIC
6987 QUIC_CONNECTION *qc = QUIC_CONNECTION_FROM_SSL(ssl);
6996 sc->pha_enabled = val;
6999 int SSL_verify_client_post_handshake(SSL *ssl)
7001 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
7002 #ifndef OPENSSL_NO_QUIC
7003 QUIC_CONNECTION *qc = QUIC_CONNECTION_FROM_SSL(ssl);
7006 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
7014 if (!SSL_CONNECTION_IS_TLS13(sc)) {
7015 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
7019 ERR_raise(ERR_LIB_SSL, SSL_R_NOT_SERVER);
7023 if (!SSL_is_init_finished(ssl)) {
7024 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
7028 switch (sc->post_handshake_auth) {
7030 ERR_raise(ERR_LIB_SSL, SSL_R_EXTENSION_NOT_RECEIVED);
7033 case SSL_PHA_EXT_SENT:
7034 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
7036 case SSL_PHA_EXT_RECEIVED:
7038 case SSL_PHA_REQUEST_PENDING:
7039 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_PENDING);
7041 case SSL_PHA_REQUESTED:
7042 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_SENT);
7046 sc->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
7048 /* checks verify_mode and algorithm_auth */
7049 if (!send_certificate_request(sc)) {
7050 sc->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
7051 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CONFIG);
7055 ossl_statem_set_in_init(sc, 1);
7059 int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
7060 SSL_CTX_generate_session_ticket_fn gen_cb,
7061 SSL_CTX_decrypt_session_ticket_fn dec_cb,
7064 ctx->generate_ticket_cb = gen_cb;
7065 ctx->decrypt_ticket_cb = dec_cb;
7066 ctx->ticket_cb_data = arg;
7070 void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
7071 SSL_allow_early_data_cb_fn cb,
7074 ctx->allow_early_data_cb = cb;
7075 ctx->allow_early_data_cb_data = arg;
7078 void SSL_set_allow_early_data_cb(SSL *s,
7079 SSL_allow_early_data_cb_fn cb,
7082 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7087 sc->allow_early_data_cb = cb;
7088 sc->allow_early_data_cb_data = arg;
7091 const EVP_CIPHER *ssl_evp_cipher_fetch(OSSL_LIB_CTX *libctx,
7093 const char *properties)
7095 const EVP_CIPHER *ciph;
7097 ciph = tls_get_cipher_from_engine(nid);
7102 * If there is no engine cipher then we do an explicit fetch. This may fail
7103 * and that could be ok
7106 ciph = EVP_CIPHER_fetch(libctx, OBJ_nid2sn(nid), properties);
7112 int ssl_evp_cipher_up_ref(const EVP_CIPHER *cipher)
7114 /* Don't up-ref an implicit EVP_CIPHER */
7115 if (EVP_CIPHER_get0_provider(cipher) == NULL)
7119 * The cipher was explicitly fetched and therefore it is safe to cast
7122 return EVP_CIPHER_up_ref((EVP_CIPHER *)cipher);
7125 void ssl_evp_cipher_free(const EVP_CIPHER *cipher)
7130 if (EVP_CIPHER_get0_provider(cipher) != NULL) {
7132 * The cipher was explicitly fetched and therefore it is safe to cast
7135 EVP_CIPHER_free((EVP_CIPHER *)cipher);
7139 const EVP_MD *ssl_evp_md_fetch(OSSL_LIB_CTX *libctx,
7141 const char *properties)
7145 md = tls_get_digest_from_engine(nid);
7149 /* Otherwise we do an explicit fetch */
7151 md = EVP_MD_fetch(libctx, OBJ_nid2sn(nid), properties);
7156 int ssl_evp_md_up_ref(const EVP_MD *md)
7158 /* Don't up-ref an implicit EVP_MD */
7159 if (EVP_MD_get0_provider(md) == NULL)
7163 * The digest was explicitly fetched and therefore it is safe to cast
7166 return EVP_MD_up_ref((EVP_MD *)md);
7169 void ssl_evp_md_free(const EVP_MD *md)
7174 if (EVP_MD_get0_provider(md) != NULL) {
7176 * The digest was explicitly fetched and therefore it is safe to cast
7179 EVP_MD_free((EVP_MD *)md);
7183 int SSL_set0_tmp_dh_pkey(SSL *s, EVP_PKEY *dhpkey)
7185 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7190 if (!ssl_security(sc, SSL_SECOP_TMP_DH,
7191 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
7192 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
7195 EVP_PKEY_free(sc->cert->dh_tmp);
7196 sc->cert->dh_tmp = dhpkey;
7200 int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX *ctx, EVP_PKEY *dhpkey)
7202 if (!ssl_ctx_security(ctx, SSL_SECOP_TMP_DH,
7203 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
7204 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
7207 EVP_PKEY_free(ctx->cert->dh_tmp);
7208 ctx->cert->dh_tmp = dhpkey;
7212 /* QUIC-specific methods which are supported on QUIC connections only. */
7213 int SSL_handle_events(SSL *s)
7217 #ifndef OPENSSL_NO_QUIC
7219 return ossl_quic_handle_events(s);
7222 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7223 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc))
7225 * DTLSv1_handle_timeout returns 0 if the timer wasn't expired yet,
7226 * which we consider a success case. Theoretically DTLSv1_handle_timeout
7227 * can also return 0 if s is NULL or not a DTLS object, but we've
7228 * already ruled out those possibilities above, so this is not possible
7229 * here. Thus the only failure cases are where DTLSv1_handle_timeout
7232 return DTLSv1_handle_timeout(s) >= 0;
7237 int SSL_get_event_timeout(SSL *s, struct timeval *tv, int *is_infinite)
7241 #ifndef OPENSSL_NO_QUIC
7243 return ossl_quic_get_event_timeout(s, tv, is_infinite);
7246 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7247 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc)
7248 && DTLSv1_get_timeout(s, tv)) {
7253 tv->tv_sec = 1000000;
7259 int SSL_get_rpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7261 #ifndef OPENSSL_NO_QUIC
7265 return ossl_quic_get_rpoll_descriptor(s, desc);
7271 int SSL_get_wpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7273 #ifndef OPENSSL_NO_QUIC
7277 return ossl_quic_get_wpoll_descriptor(s, desc);
7283 int SSL_net_read_desired(SSL *s)
7285 #ifndef OPENSSL_NO_QUIC
7289 return ossl_quic_get_net_read_desired(s);
7295 int SSL_net_write_desired(SSL *s)
7297 #ifndef OPENSSL_NO_QUIC
7301 return ossl_quic_get_net_write_desired(s);
7307 int SSL_set_blocking_mode(SSL *s, int blocking)
7309 #ifndef OPENSSL_NO_QUIC
7313 return ossl_quic_conn_set_blocking_mode(s, blocking);
7319 int SSL_get_blocking_mode(SSL *s)
7321 #ifndef OPENSSL_NO_QUIC
7325 return ossl_quic_conn_get_blocking_mode(s);
7331 int SSL_set_initial_peer_addr(SSL *s, const BIO_ADDR *peer_addr)
7333 #ifndef OPENSSL_NO_QUIC
7337 return ossl_quic_conn_set_initial_peer_addr(s, peer_addr);
7343 int SSL_shutdown_ex(SSL *ssl, uint64_t flags,
7344 const SSL_SHUTDOWN_EX_ARGS *args,
7347 #ifndef OPENSSL_NO_QUIC
7349 return SSL_shutdown(ssl);
7351 return ossl_quic_conn_shutdown(ssl, flags, args, args_len);
7353 return SSL_shutdown(ssl);
7357 int SSL_stream_conclude(SSL *ssl, uint64_t flags)
7359 #ifndef OPENSSL_NO_QUIC
7363 return ossl_quic_conn_stream_conclude(ssl);
7369 SSL *SSL_new_stream(SSL *s, uint64_t flags)
7371 #ifndef OPENSSL_NO_QUIC
7375 return ossl_quic_conn_stream_new(s, flags);
7381 SSL *SSL_get0_connection(SSL *s)
7383 #ifndef OPENSSL_NO_QUIC
7387 return ossl_quic_get0_connection(s);
7393 int SSL_is_connection(SSL *s)
7395 return SSL_get0_connection(s) == s;
7398 int SSL_get_stream_type(SSL *s)
7400 #ifndef OPENSSL_NO_QUIC
7402 return SSL_STREAM_TYPE_BIDI;
7404 return ossl_quic_get_stream_type(s);
7406 return SSL_STREAM_TYPE_BIDI;
7410 uint64_t SSL_get_stream_id(SSL *s)
7412 #ifndef OPENSSL_NO_QUIC
7416 return ossl_quic_get_stream_id(s);
7422 int SSL_set_default_stream_mode(SSL *s, uint32_t mode)
7424 #ifndef OPENSSL_NO_QUIC
7428 return ossl_quic_set_default_stream_mode(s, mode);
7434 int SSL_set_incoming_stream_policy(SSL *s, int policy, uint64_t aec)
7436 #ifndef OPENSSL_NO_QUIC
7440 return ossl_quic_set_incoming_stream_policy(s, policy, aec);
7446 SSL *SSL_accept_stream(SSL *s, uint64_t flags)
7448 #ifndef OPENSSL_NO_QUIC
7452 return ossl_quic_accept_stream(s, flags);
7458 size_t SSL_get_accept_stream_queue_len(SSL *s)
7460 #ifndef OPENSSL_NO_QUIC
7464 return ossl_quic_get_accept_stream_queue_len(s);
7470 int SSL_stream_reset(SSL *s,
7471 const SSL_STREAM_RESET_ARGS *args,
7474 #ifndef OPENSSL_NO_QUIC
7478 return ossl_quic_stream_reset(s, args, args_len);
7484 int SSL_get_stream_read_state(SSL *s)
7486 #ifndef OPENSSL_NO_QUIC
7488 return SSL_STREAM_STATE_NONE;
7490 return ossl_quic_get_stream_read_state(s);
7492 return SSL_STREAM_STATE_NONE;
7496 int SSL_get_stream_write_state(SSL *s)
7498 #ifndef OPENSSL_NO_QUIC
7500 return SSL_STREAM_STATE_NONE;
7502 return ossl_quic_get_stream_write_state(s);
7504 return SSL_STREAM_STATE_NONE;
7508 int SSL_get_stream_read_error_code(SSL *s, uint64_t *app_error_code)
7510 #ifndef OPENSSL_NO_QUIC
7514 return ossl_quic_get_stream_read_error_code(s, app_error_code);
7520 int SSL_get_stream_write_error_code(SSL *s, uint64_t *app_error_code)
7522 #ifndef OPENSSL_NO_QUIC
7526 return ossl_quic_get_stream_write_error_code(s, app_error_code);
7532 int SSL_get_conn_close_info(SSL *s, SSL_CONN_CLOSE_INFO *info,
7535 #ifndef OPENSSL_NO_QUIC
7539 return ossl_quic_get_conn_close_info(s, info, info_len);
7545 int SSL_add_expected_rpk(SSL *s, EVP_PKEY *rpk)
7547 unsigned char *data = NULL;
7548 SSL_DANE *dane = SSL_get0_dane(s);
7551 if (dane == NULL || dane->dctx == NULL)
7553 if ((ret = i2d_PUBKEY(rpk, &data)) <= 0)
7556 ret = SSL_dane_tlsa_add(s, DANETLS_USAGE_DANE_EE,
7557 DANETLS_SELECTOR_SPKI,
7558 DANETLS_MATCHING_FULL,
7559 data, (size_t)ret) > 0;
7564 EVP_PKEY *SSL_get0_peer_rpk(const SSL *s)
7566 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7568 if (sc == NULL || sc->session == NULL)
7570 return sc->session->peer_rpk;
7573 int SSL_get_negotiated_client_cert_type(const SSL *s)
7575 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7580 return sc->ext.client_cert_type;
7583 int SSL_get_negotiated_server_cert_type(const SSL *s)
7585 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7590 return sc->ext.server_cert_type;
7593 static int validate_cert_type(const unsigned char *val, size_t len)
7599 if (val == NULL && len == 0)
7602 if (val == NULL || len == 0)
7605 for (i = 0; i < len; i++) {
7607 case TLSEXT_cert_type_rpk:
7612 case TLSEXT_cert_type_x509:
7617 case TLSEXT_cert_type_pgp:
7618 case TLSEXT_cert_type_1609dot2:
7626 static int set_cert_type(unsigned char **cert_type,
7627 size_t *cert_type_len,
7628 const unsigned char *val,
7631 unsigned char *tmp = NULL;
7633 if (!validate_cert_type(val, len))
7636 if (val != NULL && (tmp = OPENSSL_memdup(val, len)) == NULL)
7639 OPENSSL_free(*cert_type);
7641 *cert_type_len = len;
7645 int SSL_set1_client_cert_type(SSL *s, const unsigned char *val, size_t len)
7647 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7649 return set_cert_type(&sc->client_cert_type, &sc->client_cert_type_len,
7653 int SSL_set1_server_cert_type(SSL *s, const unsigned char *val, size_t len)
7655 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7657 return set_cert_type(&sc->server_cert_type, &sc->server_cert_type_len,
7661 int SSL_CTX_set1_client_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7663 return set_cert_type(&ctx->client_cert_type, &ctx->client_cert_type_len,
7667 int SSL_CTX_set1_server_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7669 return set_cert_type(&ctx->server_cert_type, &ctx->server_cert_type_len,
7673 int SSL_get0_client_cert_type(const SSL *s, unsigned char **t, size_t *len)
7675 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7677 if (t == NULL || len == NULL)
7680 *t = sc->client_cert_type;
7681 *len = sc->client_cert_type_len;
7685 int SSL_get0_server_cert_type(const SSL *s, unsigned char **t, size_t *len)
7687 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7689 if (t == NULL || len == NULL)
7692 *t = sc->server_cert_type;
7693 *len = sc->server_cert_type_len;
7697 int SSL_CTX_get0_client_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7699 if (t == NULL || len == NULL)
7702 *t = ctx->client_cert_type;
7703 *len = ctx->client_cert_type_len;
7707 int SSL_CTX_get0_server_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7709 if (t == NULL || len == NULL)
7712 *t = ctx->server_cert_type;
7713 *len = ctx->server_cert_type_len;