2 * Copyright 1995-2022 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/refcount.h"
27 #include "internal/ktls.h"
29 static int ssl_undefined_function_3(SSL_CONNECTION *sc, unsigned char *r,
30 unsigned char *s, size_t t, size_t *u)
32 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
35 static int ssl_undefined_function_4(SSL_CONNECTION *sc, int r)
37 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
40 static size_t ssl_undefined_function_5(SSL_CONNECTION *sc, const char *r,
41 size_t s, unsigned char *t)
43 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
46 static int ssl_undefined_function_6(int r)
48 return ssl_undefined_function(NULL);
51 static int ssl_undefined_function_7(SSL_CONNECTION *sc, unsigned char *r,
52 size_t s, const char *t, size_t u,
53 const unsigned char *v, size_t w, int x)
55 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
58 static int ssl_undefined_function_8(SSL_CONNECTION *sc)
60 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
63 SSL3_ENC_METHOD ssl3_undef_enc_method = {
64 ssl_undefined_function_8,
65 ssl_undefined_function_3,
66 ssl_undefined_function_4,
67 ssl_undefined_function_5,
68 NULL, /* client_finished_label */
69 0, /* client_finished_label_len */
70 NULL, /* server_finished_label */
71 0, /* server_finished_label_len */
72 ssl_undefined_function_6,
73 ssl_undefined_function_7,
76 struct ssl_async_args {
80 enum { READFUNC, WRITEFUNC, OTHERFUNC } type;
82 int (*func_read) (SSL *, void *, size_t, size_t *);
83 int (*func_write) (SSL *, const void *, size_t, size_t *);
84 int (*func_other) (SSL *);
94 DANETLS_MATCHING_FULL, 0, NID_undef
97 DANETLS_MATCHING_2256, 1, NID_sha256
100 DANETLS_MATCHING_2512, 2, NID_sha512
104 static int dane_ctx_enable(struct dane_ctx_st *dctx)
106 const EVP_MD **mdevp;
108 uint8_t mdmax = DANETLS_MATCHING_LAST;
109 int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */
112 if (dctx->mdevp != NULL)
115 mdevp = OPENSSL_zalloc(n * sizeof(*mdevp));
116 mdord = OPENSSL_zalloc(n * sizeof(*mdord));
118 if (mdord == NULL || mdevp == NULL) {
124 /* Install default entries */
125 for (i = 0; i < OSSL_NELEM(dane_mds); ++i) {
128 if (dane_mds[i].nid == NID_undef ||
129 (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL)
131 mdevp[dane_mds[i].mtype] = md;
132 mdord[dane_mds[i].mtype] = dane_mds[i].ord;
142 static void dane_ctx_final(struct dane_ctx_st *dctx)
144 OPENSSL_free(dctx->mdevp);
147 OPENSSL_free(dctx->mdord);
152 static void tlsa_free(danetls_record *t)
156 OPENSSL_free(t->data);
157 EVP_PKEY_free(t->spki);
161 static void dane_final(SSL_DANE *dane)
163 sk_danetls_record_pop_free(dane->trecs, tlsa_free);
166 OSSL_STACK_OF_X509_free(dane->certs);
169 X509_free(dane->mcert);
177 * dane_copy - Copy dane configuration, sans verification state.
179 static int ssl_dane_dup(SSL_CONNECTION *to, SSL_CONNECTION *from)
184 if (!DANETLS_ENABLED(&from->dane))
187 num = sk_danetls_record_num(from->dane.trecs);
188 dane_final(&to->dane);
189 to->dane.flags = from->dane.flags;
190 to->dane.dctx = &SSL_CONNECTION_GET_CTX(to)->dane;
191 to->dane.trecs = sk_danetls_record_new_reserve(NULL, num);
193 if (to->dane.trecs == NULL) {
194 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
198 for (i = 0; i < num; ++i) {
199 danetls_record *t = sk_danetls_record_value(from->dane.trecs, i);
201 if (SSL_dane_tlsa_add(SSL_CONNECTION_GET_SSL(to), t->usage,
202 t->selector, t->mtype, t->data, t->dlen) <= 0)
208 static int dane_mtype_set(struct dane_ctx_st *dctx,
209 const EVP_MD *md, uint8_t mtype, uint8_t ord)
213 if (mtype == DANETLS_MATCHING_FULL && md != NULL) {
214 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL);
218 if (mtype > dctx->mdmax) {
219 const EVP_MD **mdevp;
221 int n = ((int)mtype) + 1;
223 mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp));
228 mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord));
233 /* Zero-fill any gaps */
234 for (i = dctx->mdmax + 1; i < mtype; ++i) {
242 dctx->mdevp[mtype] = md;
243 /* Coerce ordinal of disabled matching types to 0 */
244 dctx->mdord[mtype] = (md == NULL) ? 0 : ord;
249 static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype)
251 if (mtype > dane->dctx->mdmax)
253 return dane->dctx->mdevp[mtype];
256 static int dane_tlsa_add(SSL_DANE *dane,
259 uint8_t mtype, const unsigned char *data, size_t dlen)
262 const EVP_MD *md = NULL;
263 int ilen = (int)dlen;
267 if (dane->trecs == NULL) {
268 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_NOT_ENABLED);
272 if (ilen < 0 || dlen != (size_t)ilen) {
273 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DATA_LENGTH);
277 if (usage > DANETLS_USAGE_LAST) {
278 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE);
282 if (selector > DANETLS_SELECTOR_LAST) {
283 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_SELECTOR);
287 if (mtype != DANETLS_MATCHING_FULL) {
288 md = tlsa_md_get(dane, mtype);
290 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE);
295 if (md != NULL && dlen != (size_t)EVP_MD_get_size(md)) {
296 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH);
300 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_NULL_DATA);
304 if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL)
308 t->selector = selector;
310 t->data = OPENSSL_malloc(dlen);
311 if (t->data == NULL) {
315 memcpy(t->data, data, dlen);
318 /* Validate and cache full certificate or public key */
319 if (mtype == DANETLS_MATCHING_FULL) {
320 const unsigned char *p = data;
322 EVP_PKEY *pkey = NULL;
325 case DANETLS_SELECTOR_CERT:
326 if (!d2i_X509(&cert, &p, ilen) || p < data ||
327 dlen != (size_t)(p - data)) {
329 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
332 if (X509_get0_pubkey(cert) == NULL) {
334 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
338 if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
344 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
345 * records that contain full certificates of trust-anchors that are
346 * not present in the wire chain. For usage PKIX-TA(0), we augment
347 * the chain with untrusted Full(0) certificates from DNS, in case
348 * they are missing from the chain.
350 if ((dane->certs == NULL &&
351 (dane->certs = sk_X509_new_null()) == NULL) ||
352 !sk_X509_push(dane->certs, cert)) {
353 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
360 case DANETLS_SELECTOR_SPKI:
361 if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data ||
362 dlen != (size_t)(p - data)) {
364 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
369 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
370 * records that contain full bare keys of trust-anchors that are
371 * not present in the wire chain.
373 if (usage == DANETLS_USAGE_DANE_TA)
382 * Find the right insertion point for the new record.
384 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
385 * they can be processed first, as they require no chain building, and no
386 * expiration or hostname checks. Because DANE-EE(3) is numerically
387 * largest, this is accomplished via descending sort by "usage".
389 * We also sort in descending order by matching ordinal to simplify
390 * the implementation of digest agility in the verification code.
392 * The choice of order for the selector is not significant, so we
393 * use the same descending order for consistency.
395 num = sk_danetls_record_num(dane->trecs);
396 for (i = 0; i < num; ++i) {
397 danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
399 if (rec->usage > usage)
401 if (rec->usage < usage)
403 if (rec->selector > selector)
405 if (rec->selector < selector)
407 if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
412 if (!sk_danetls_record_insert(dane->trecs, t, i)) {
414 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
417 dane->umask |= DANETLS_USAGE_BIT(usage);
423 * Return 0 if there is only one version configured and it was disabled
424 * at configure time. Return 1 otherwise.
426 static int ssl_check_allowed_versions(int min_version, int max_version)
428 int minisdtls = 0, maxisdtls = 0;
430 /* Figure out if we're doing DTLS versions or TLS versions */
431 if (min_version == DTLS1_BAD_VER
432 || min_version >> 8 == DTLS1_VERSION_MAJOR)
434 if (max_version == DTLS1_BAD_VER
435 || max_version >> 8 == DTLS1_VERSION_MAJOR)
437 /* A wildcard version of 0 could be DTLS or TLS. */
438 if ((minisdtls && !maxisdtls && max_version != 0)
439 || (maxisdtls && !minisdtls && min_version != 0)) {
440 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
444 if (minisdtls || maxisdtls) {
445 /* Do DTLS version checks. */
446 if (min_version == 0)
447 /* Ignore DTLS1_BAD_VER */
448 min_version = DTLS1_VERSION;
449 if (max_version == 0)
450 max_version = DTLS1_2_VERSION;
451 #ifdef OPENSSL_NO_DTLS1_2
452 if (max_version == DTLS1_2_VERSION)
453 max_version = DTLS1_VERSION;
455 #ifdef OPENSSL_NO_DTLS1
456 if (min_version == DTLS1_VERSION)
457 min_version = DTLS1_2_VERSION;
459 /* Done massaging versions; do the check. */
461 #ifdef OPENSSL_NO_DTLS1
462 || (DTLS_VERSION_GE(min_version, DTLS1_VERSION)
463 && DTLS_VERSION_GE(DTLS1_VERSION, max_version))
465 #ifdef OPENSSL_NO_DTLS1_2
466 || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION)
467 && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version))
472 /* Regular TLS version checks. */
473 if (min_version == 0)
474 min_version = SSL3_VERSION;
475 if (max_version == 0)
476 max_version = TLS1_3_VERSION;
477 #ifdef OPENSSL_NO_TLS1_3
478 if (max_version == TLS1_3_VERSION)
479 max_version = TLS1_2_VERSION;
481 #ifdef OPENSSL_NO_TLS1_2
482 if (max_version == TLS1_2_VERSION)
483 max_version = TLS1_1_VERSION;
485 #ifdef OPENSSL_NO_TLS1_1
486 if (max_version == TLS1_1_VERSION)
487 max_version = TLS1_VERSION;
489 #ifdef OPENSSL_NO_TLS1
490 if (max_version == TLS1_VERSION)
491 max_version = SSL3_VERSION;
493 #ifdef OPENSSL_NO_SSL3
494 if (min_version == SSL3_VERSION)
495 min_version = TLS1_VERSION;
497 #ifdef OPENSSL_NO_TLS1
498 if (min_version == TLS1_VERSION)
499 min_version = TLS1_1_VERSION;
501 #ifdef OPENSSL_NO_TLS1_1
502 if (min_version == TLS1_1_VERSION)
503 min_version = TLS1_2_VERSION;
505 #ifdef OPENSSL_NO_TLS1_2
506 if (min_version == TLS1_2_VERSION)
507 min_version = TLS1_3_VERSION;
509 /* Done massaging versions; do the check. */
511 #ifdef OPENSSL_NO_SSL3
512 || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version)
514 #ifdef OPENSSL_NO_TLS1
515 || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version)
517 #ifdef OPENSSL_NO_TLS1_1
518 || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version)
520 #ifdef OPENSSL_NO_TLS1_2
521 || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version)
523 #ifdef OPENSSL_NO_TLS1_3
524 || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version)
532 #if defined(__TANDEM) && defined(OPENSSL_VPROC)
534 * Define a VPROC function for HP NonStop build ssl library.
535 * This is used by platform version identification tools.
536 * Do not inline this procedure or make it static.
538 # define OPENSSL_VPROC_STRING_(x) x##_SSL
539 # define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
540 # define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
541 void OPENSSL_VPROC_FUNC(void) {}
544 static int clear_record_layer(SSL_CONNECTION *s)
548 /* We try and reset both record layers even if one fails */
550 ret = ssl_set_new_record_layer(s,
551 SSL_CONNECTION_IS_DTLS(s) ? DTLS_ANY_VERSION
553 OSSL_RECORD_DIRECTION_READ,
554 OSSL_RECORD_PROTECTION_LEVEL_NONE,
555 NULL, 0, NULL, 0, NULL, 0, NULL, 0,
556 NID_undef, NULL, NULL);
558 ret &= ssl_set_new_record_layer(s,
559 SSL_CONNECTION_IS_DTLS(s) ? DTLS_ANY_VERSION
561 OSSL_RECORD_DIRECTION_WRITE,
562 OSSL_RECORD_PROTECTION_LEVEL_NONE,
563 NULL, 0, NULL, 0, NULL, 0, NULL, 0,
564 NID_undef, NULL, NULL);
565 /* SSLfatal already called in the event of failure */
569 int SSL_clear(SSL *s)
571 if (s->method == NULL) {
572 ERR_raise(ERR_LIB_SSL, SSL_R_NO_METHOD_SPECIFIED);
576 return s->method->ssl_reset(s);
579 int ossl_ssl_connection_reset(SSL *s)
581 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
586 if (ssl_clear_bad_session(sc)) {
587 SSL_SESSION_free(sc->session);
590 SSL_SESSION_free(sc->psksession);
591 sc->psksession = NULL;
592 OPENSSL_free(sc->psksession_id);
593 sc->psksession_id = NULL;
594 sc->psksession_id_len = 0;
595 sc->hello_retry_request = 0;
596 sc->sent_tickets = 0;
602 if (sc->renegotiate) {
603 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
607 ossl_statem_clear(sc);
609 /* TODO(QUIC): Version handling not yet clear */
610 sc->version = s->method->version;
611 sc->client_version = sc->version;
612 sc->rwstate = SSL_NOTHING;
614 BUF_MEM_free(sc->init_buf);
616 sc->first_packet = 0;
618 sc->key_update = SSL_KEY_UPDATE_NONE;
619 memset(sc->ext.compress_certificate_from_peer, 0,
620 sizeof(sc->ext.compress_certificate_from_peer));
621 sc->ext.compress_certificate_sent = 0;
623 EVP_MD_CTX_free(sc->pha_dgst);
626 /* Reset DANE verification result state */
629 X509_free(sc->dane.mcert);
630 sc->dane.mcert = NULL;
631 sc->dane.mtlsa = NULL;
633 /* Clear the verification result peername */
634 X509_VERIFY_PARAM_move_peername(sc->param, NULL);
636 /* Clear any shared connection state */
637 OPENSSL_free(sc->shared_sigalgs);
638 sc->shared_sigalgs = NULL;
639 sc->shared_sigalgslen = 0;
642 * Check to see if we were changed into a different method, if so, revert
645 if (s->method != SSL_CONNECTION_GET_CTX(sc)->method) {
646 s->method->ssl_deinit(s);
647 s->method = SSL_CONNECTION_GET_CTX(sc)->method;
648 if (!s->method->ssl_init(s))
651 if (!s->method->ssl_clear(s))
655 RECORD_LAYER_clear(&sc->rlayer);
656 BIO_free(sc->rlayer.rrlnext);
657 sc->rlayer.rrlnext = NULL;
659 if (!clear_record_layer(sc))
665 #ifndef OPENSSL_NO_DEPRECATED_3_0
666 /** Used to change an SSL_CTXs default SSL method type */
667 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
669 STACK_OF(SSL_CIPHER) *sk;
673 if (!SSL_CTX_set_ciphersuites(ctx, OSSL_default_ciphersuites())) {
674 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
677 sk = ssl_create_cipher_list(ctx,
678 ctx->tls13_ciphersuites,
680 &(ctx->cipher_list_by_id),
681 OSSL_default_cipher_list(), ctx->cert);
682 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
683 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
690 SSL *SSL_new(SSL_CTX *ctx)
693 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_CTX);
696 if (ctx->method == NULL) {
697 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
700 return ctx->method->ssl_new(ctx);
703 int ossl_ssl_init(SSL *ssl, SSL_CTX *ctx, int type)
708 ssl->lock = CRYPTO_THREAD_lock_new();
709 if (ssl->lock == NULL)
715 ssl->method = ctx->method;
717 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, ssl, &ssl->ex_data))
723 SSL *ossl_ssl_connection_new(SSL_CTX *ctx)
728 s = OPENSSL_zalloc(sizeof(*s));
733 if (!ossl_ssl_init(ssl, ctx, SSL_TYPE_SSL_CONNECTION)) {
739 #ifndef OPENSSL_NO_QUIC
740 /* set the parent (user visible) ssl to self */
744 RECORD_LAYER_init(&s->rlayer, s);
746 s->options = ctx->options;
747 s->dane.flags = ctx->dane.flags;
748 s->min_proto_version = ctx->min_proto_version;
749 s->max_proto_version = ctx->max_proto_version;
751 s->max_cert_list = ctx->max_cert_list;
752 s->max_early_data = ctx->max_early_data;
753 s->recv_max_early_data = ctx->recv_max_early_data;
754 s->num_tickets = ctx->num_tickets;
755 s->pha_enabled = ctx->pha_enabled;
757 /* Shallow copy of the ciphersuites stack */
758 s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
759 if (s->tls13_ciphersuites == NULL)
763 * Earlier library versions used to copy the pointer to the CERT, not
764 * its contents; only when setting new parameters for the per-SSL
765 * copy, ssl_cert_new would be called (and the direct reference to
766 * the per-SSL_CTX settings would be lost, but those still were
767 * indirectly accessed for various purposes, and for that reason they
768 * used to be known as s->ctx->default_cert). Now we don't look at the
769 * SSL_CTX's CERT after having duplicated it once.
771 s->cert = ssl_cert_dup(ctx->cert);
775 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
776 s->msg_callback = ctx->msg_callback;
777 s->msg_callback_arg = ctx->msg_callback_arg;
778 s->verify_mode = ctx->verify_mode;
779 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
780 s->rlayer.record_padding_cb = ctx->record_padding_cb;
781 s->rlayer.record_padding_arg = ctx->record_padding_arg;
782 s->rlayer.block_padding = ctx->block_padding;
783 s->sid_ctx_length = ctx->sid_ctx_length;
784 if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
786 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
787 s->verify_callback = ctx->default_verify_callback;
788 s->generate_session_id = ctx->generate_session_id;
790 s->param = X509_VERIFY_PARAM_new();
791 if (s->param == NULL)
793 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
794 s->quiet_shutdown = ctx->quiet_shutdown;
796 s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
797 s->max_send_fragment = ctx->max_send_fragment;
798 s->split_send_fragment = ctx->split_send_fragment;
799 s->max_pipelines = ctx->max_pipelines;
800 s->rlayer.default_read_buf_len = ctx->default_read_buf_len;
803 s->ext.debug_arg = NULL;
804 s->ext.ticket_expected = 0;
805 s->ext.status_type = ctx->ext.status_type;
806 s->ext.status_expected = 0;
807 s->ext.ocsp.ids = NULL;
808 s->ext.ocsp.exts = NULL;
809 s->ext.ocsp.resp = NULL;
810 s->ext.ocsp.resp_len = 0;
812 s->session_ctx = ctx;
813 if (ctx->ext.ecpointformats) {
814 s->ext.ecpointformats =
815 OPENSSL_memdup(ctx->ext.ecpointformats,
816 ctx->ext.ecpointformats_len);
817 if (!s->ext.ecpointformats) {
818 s->ext.ecpointformats_len = 0;
821 s->ext.ecpointformats_len =
822 ctx->ext.ecpointformats_len;
824 if (ctx->ext.supportedgroups) {
825 s->ext.supportedgroups =
826 OPENSSL_memdup(ctx->ext.supportedgroups,
827 ctx->ext.supportedgroups_len
828 * sizeof(*ctx->ext.supportedgroups));
829 if (!s->ext.supportedgroups) {
830 s->ext.supportedgroups_len = 0;
833 s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
836 #ifndef OPENSSL_NO_NEXTPROTONEG
840 if (ctx->ext.alpn != NULL) {
841 s->ext.alpn = OPENSSL_malloc(ctx->ext.alpn_len);
842 if (s->ext.alpn == NULL) {
846 memcpy(s->ext.alpn, ctx->ext.alpn, ctx->ext.alpn_len);
847 s->ext.alpn_len = ctx->ext.alpn_len;
850 s->verified_chain = NULL;
851 s->verify_result = X509_V_OK;
853 s->default_passwd_callback = ctx->default_passwd_callback;
854 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
856 s->key_update = SSL_KEY_UPDATE_NONE;
858 s->allow_early_data_cb = ctx->allow_early_data_cb;
859 s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
861 if (!ssl->method->ssl_init(ssl))
864 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
869 #ifndef OPENSSL_NO_PSK
870 s->psk_client_callback = ctx->psk_client_callback;
871 s->psk_server_callback = ctx->psk_server_callback;
873 s->psk_find_session_cb = ctx->psk_find_session_cb;
874 s->psk_use_session_cb = ctx->psk_use_session_cb;
876 s->async_cb = ctx->async_cb;
877 s->async_cb_arg = ctx->async_cb_arg;
881 #ifndef OPENSSL_NO_COMP_ALG
882 memcpy(s->cert_comp_prefs, ctx->cert_comp_prefs, sizeof(s->cert_comp_prefs));
885 #ifndef OPENSSL_NO_CT
886 if (!SSL_set_ct_validation_callback(ssl, ctx->ct_validation_callback,
887 ctx->ct_validation_callback_arg))
893 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
896 ERR_raise(ERR_LIB_SSL, ERR_R_ASN1_LIB);
899 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
905 int SSL_is_dtls(const SSL *s)
907 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
912 return SSL_CONNECTION_IS_DTLS(sc) ? 1 : 0;
915 int SSL_up_ref(SSL *s)
919 if (CRYPTO_UP_REF(&s->references, &i, s->lock) <= 0)
922 REF_PRINT_COUNT("SSL", s);
923 REF_ASSERT_ISNT(i < 2);
924 return ((i > 1) ? 1 : 0);
927 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
928 unsigned int sid_ctx_len)
930 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
931 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
934 ctx->sid_ctx_length = sid_ctx_len;
935 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
940 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
941 unsigned int sid_ctx_len)
943 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
948 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
949 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
952 sc->sid_ctx_length = sid_ctx_len;
953 memcpy(sc->sid_ctx, sid_ctx, sid_ctx_len);
958 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
960 if (!CRYPTO_THREAD_write_lock(ctx->lock))
962 ctx->generate_session_id = cb;
963 CRYPTO_THREAD_unlock(ctx->lock);
967 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
969 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
971 if (sc == NULL || !CRYPTO_THREAD_write_lock(ssl->lock))
973 sc->generate_session_id = cb;
974 CRYPTO_THREAD_unlock(ssl->lock);
978 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
982 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
983 * we can "construct" a session to give us the desired check - i.e. to
984 * find if there's a session in the hash table that would conflict with
985 * any new session built out of this id/id_len and the ssl_version in use
989 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
991 if (sc == NULL || id_len > sizeof(r.session_id))
994 r.ssl_version = sc->version;
995 r.session_id_length = id_len;
996 memcpy(r.session_id, id, id_len);
998 if (!CRYPTO_THREAD_read_lock(sc->session_ctx->lock))
1000 p = lh_SSL_SESSION_retrieve(sc->session_ctx->sessions, &r);
1001 CRYPTO_THREAD_unlock(sc->session_ctx->lock);
1005 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
1007 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
1010 int SSL_set_purpose(SSL *s, int purpose)
1012 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1017 return X509_VERIFY_PARAM_set_purpose(sc->param, purpose);
1020 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
1022 return X509_VERIFY_PARAM_set_trust(s->param, trust);
1025 int SSL_set_trust(SSL *s, int trust)
1027 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1032 return X509_VERIFY_PARAM_set_trust(sc->param, trust);
1035 int SSL_set1_host(SSL *s, const char *hostname)
1037 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1042 /* If a hostname is provided and parses as an IP address,
1043 * treat it as such. */
1044 if (hostname != NULL
1045 && X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname) == 1)
1048 return X509_VERIFY_PARAM_set1_host(sc->param, hostname, 0);
1051 int SSL_add1_host(SSL *s, const char *hostname)
1053 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1058 /* If a hostname is provided and parses as an IP address,
1059 * treat it as such. */
1062 ASN1_OCTET_STRING *ip;
1065 ip = a2i_IPADDRESS(hostname);
1067 /* We didn't want it; only to check if it *is* an IP address */
1068 ASN1_OCTET_STRING_free(ip);
1070 old_ip = X509_VERIFY_PARAM_get1_ip_asc(sc->param);
1073 OPENSSL_free(old_ip);
1074 /* There can be only one IP address */
1078 return X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname);
1082 return X509_VERIFY_PARAM_add1_host(sc->param, hostname, 0);
1085 void SSL_set_hostflags(SSL *s, unsigned int flags)
1087 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1092 X509_VERIFY_PARAM_set_hostflags(sc->param, flags);
1095 const char *SSL_get0_peername(SSL *s)
1097 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1102 return X509_VERIFY_PARAM_get0_peername(sc->param);
1105 int SSL_CTX_dane_enable(SSL_CTX *ctx)
1107 return dane_ctx_enable(&ctx->dane);
1110 unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
1112 unsigned long orig = ctx->dane.flags;
1114 ctx->dane.flags |= flags;
1118 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
1120 unsigned long orig = ctx->dane.flags;
1122 ctx->dane.flags &= ~flags;
1126 int SSL_dane_enable(SSL *s, const char *basedomain)
1129 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1135 if (s->ctx->dane.mdmax == 0) {
1136 ERR_raise(ERR_LIB_SSL, SSL_R_CONTEXT_NOT_DANE_ENABLED);
1139 if (dane->trecs != NULL) {
1140 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_ALREADY_ENABLED);
1145 * Default SNI name. This rejects empty names, while set1_host below
1146 * accepts them and disables hostname checks. To avoid side-effects with
1147 * invalid input, set the SNI name first.
1149 if (sc->ext.hostname == NULL) {
1150 if (!SSL_set_tlsext_host_name(s, basedomain)) {
1151 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1156 /* Primary RFC6125 reference identifier */
1157 if (!X509_VERIFY_PARAM_set1_host(sc->param, basedomain, 0)) {
1158 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1164 dane->dctx = &s->ctx->dane;
1165 dane->trecs = sk_danetls_record_new_null();
1167 if (dane->trecs == NULL) {
1168 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
1174 unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
1177 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1182 orig = sc->dane.flags;
1184 sc->dane.flags |= flags;
1188 unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
1191 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1196 orig = sc->dane.flags;
1198 sc->dane.flags &= ~flags;
1202 int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
1205 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1212 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1216 *mcert = dane->mcert;
1218 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
1223 int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
1224 uint8_t *mtype, const unsigned char **data, size_t *dlen)
1227 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1234 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1238 *usage = dane->mtlsa->usage;
1240 *selector = dane->mtlsa->selector;
1242 *mtype = dane->mtlsa->mtype;
1244 *data = dane->mtlsa->data;
1246 *dlen = dane->mtlsa->dlen;
1251 SSL_DANE *SSL_get0_dane(SSL *s)
1253 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1261 int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
1262 uint8_t mtype, const unsigned char *data, size_t dlen)
1264 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1269 return dane_tlsa_add(&sc->dane, usage, selector, mtype, data, dlen);
1272 int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
1275 return dane_mtype_set(&ctx->dane, md, mtype, ord);
1278 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
1280 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
1283 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
1285 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1290 return X509_VERIFY_PARAM_set1(sc->param, vpm);
1293 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
1298 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
1300 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1308 void SSL_certs_clear(SSL *s)
1310 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1315 ssl_cert_clear_certs(sc->cert);
1318 void SSL_free(SSL *s)
1324 CRYPTO_DOWN_REF(&s->references, &i, s->lock);
1325 REF_PRINT_COUNT("SSL", s);
1328 REF_ASSERT_ISNT(i < 0);
1330 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1332 if (s->method != NULL)
1333 s->method->ssl_free(s);
1335 SSL_CTX_free(s->ctx);
1336 CRYPTO_THREAD_lock_free(s->lock);
1341 void ossl_ssl_connection_free(SSL *ssl)
1345 s = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
1349 X509_VERIFY_PARAM_free(s->param);
1350 dane_final(&s->dane);
1352 /* Ignore return value */
1353 ssl_free_wbio_buffer(s);
1355 RECORD_LAYER_clear(&s->rlayer);
1357 BUF_MEM_free(s->init_buf);
1359 /* add extra stuff */
1360 sk_SSL_CIPHER_free(s->cipher_list);
1361 sk_SSL_CIPHER_free(s->cipher_list_by_id);
1362 sk_SSL_CIPHER_free(s->tls13_ciphersuites);
1363 sk_SSL_CIPHER_free(s->peer_ciphers);
1365 /* Make the next call work :-) */
1366 if (s->session != NULL) {
1367 ssl_clear_bad_session(s);
1368 SSL_SESSION_free(s->session);
1370 SSL_SESSION_free(s->psksession);
1371 OPENSSL_free(s->psksession_id);
1373 ssl_cert_free(s->cert);
1374 OPENSSL_free(s->shared_sigalgs);
1375 /* Free up if allocated */
1377 OPENSSL_free(s->ext.hostname);
1378 SSL_CTX_free(s->session_ctx);
1379 OPENSSL_free(s->ext.ecpointformats);
1380 OPENSSL_free(s->ext.peer_ecpointformats);
1381 OPENSSL_free(s->ext.supportedgroups);
1382 OPENSSL_free(s->ext.peer_supportedgroups);
1383 sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
1384 #ifndef OPENSSL_NO_OCSP
1385 sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
1387 #ifndef OPENSSL_NO_CT
1388 SCT_LIST_free(s->scts);
1389 OPENSSL_free(s->ext.scts);
1391 OPENSSL_free(s->ext.ocsp.resp);
1392 OPENSSL_free(s->ext.alpn);
1393 OPENSSL_free(s->ext.tls13_cookie);
1394 if (s->clienthello != NULL)
1395 OPENSSL_free(s->clienthello->pre_proc_exts);
1396 OPENSSL_free(s->clienthello);
1397 OPENSSL_free(s->pha_context);
1398 EVP_MD_CTX_free(s->pha_dgst);
1400 sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
1401 sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
1403 OSSL_STACK_OF_X509_free(s->verified_chain);
1405 if (ssl->method != NULL)
1406 ssl->method->ssl_deinit(ssl);
1408 ASYNC_WAIT_CTX_free(s->waitctx);
1410 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1411 OPENSSL_free(s->ext.npn);
1414 #ifndef OPENSSL_NO_SRTP
1415 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
1419 * We do this late. We want to ensure that any other references we held to
1420 * these BIOs are freed first *before* we call BIO_free_all(), because
1421 * BIO_free_all() will only free each BIO in the chain if the number of
1422 * references to the first BIO have dropped to 0
1424 BIO_free_all(s->wbio);
1426 BIO_free_all(s->rbio);
1430 void SSL_set0_rbio(SSL *s, BIO *rbio)
1432 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1437 BIO_free_all(sc->rbio);
1439 sc->rlayer.rrlmethod->set1_bio(sc->rlayer.rrl, sc->rbio);
1442 void SSL_set0_wbio(SSL *s, BIO *wbio)
1444 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1450 * If the output buffering BIO is still in place, remove it
1452 if (sc->bbio != NULL)
1453 sc->wbio = BIO_pop(sc->wbio);
1455 BIO_free_all(sc->wbio);
1458 /* Re-attach |bbio| to the new |wbio|. */
1459 if (sc->bbio != NULL)
1460 sc->wbio = BIO_push(sc->bbio, sc->wbio);
1462 sc->rlayer.wrlmethod->set1_bio(sc->rlayer.wrl, sc->wbio);
1465 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1468 * For historical reasons, this function has many different cases in
1469 * ownership handling.
1472 /* If nothing has changed, do nothing */
1473 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1477 * If the two arguments are equal then one fewer reference is granted by the
1478 * caller than we want to take
1480 if (rbio != NULL && rbio == wbio)
1484 * If only the wbio is changed only adopt one reference.
1486 if (rbio == SSL_get_rbio(s)) {
1487 SSL_set0_wbio(s, wbio);
1491 * There is an asymmetry here for historical reasons. If only the rbio is
1492 * changed AND the rbio and wbio were originally different, then we only
1493 * adopt one reference.
1495 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1496 SSL_set0_rbio(s, rbio);
1500 /* Otherwise, adopt both references. */
1501 SSL_set0_rbio(s, rbio);
1502 SSL_set0_wbio(s, wbio);
1505 BIO *SSL_get_rbio(const SSL *s)
1507 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1515 BIO *SSL_get_wbio(const SSL *s)
1517 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1522 if (sc->bbio != NULL) {
1524 * If |bbio| is active, the true caller-configured BIO is its
1527 return BIO_next(sc->bbio);
1532 int SSL_get_fd(const SSL *s)
1534 return SSL_get_rfd(s);
1537 int SSL_get_rfd(const SSL *s)
1542 b = SSL_get_rbio(s);
1543 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1545 BIO_get_fd(r, &ret);
1549 int SSL_get_wfd(const SSL *s)
1554 b = SSL_get_wbio(s);
1555 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1557 BIO_get_fd(r, &ret);
1561 #ifndef OPENSSL_NO_SOCK
1562 int SSL_set_fd(SSL *s, int fd)
1567 bio = BIO_new(BIO_s_socket());
1570 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1573 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1574 SSL_set_bio(s, bio, bio);
1575 #ifndef OPENSSL_NO_KTLS
1577 * The new socket is created successfully regardless of ktls_enable.
1578 * ktls_enable doesn't change any functionality of the socket, except
1579 * changing the setsockopt to enable the processing of ktls_start.
1580 * Thus, it is not a problem to call it for non-TLS sockets.
1583 #endif /* OPENSSL_NO_KTLS */
1589 int SSL_set_wfd(SSL *s, int fd)
1591 BIO *rbio = SSL_get_rbio(s);
1593 if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET
1594 || (int)BIO_get_fd(rbio, NULL) != fd) {
1595 BIO *bio = BIO_new(BIO_s_socket());
1598 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1601 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1602 SSL_set0_wbio(s, bio);
1603 #ifndef OPENSSL_NO_KTLS
1605 * The new socket is created successfully regardless of ktls_enable.
1606 * ktls_enable doesn't change any functionality of the socket, except
1607 * changing the setsockopt to enable the processing of ktls_start.
1608 * Thus, it is not a problem to call it for non-TLS sockets.
1611 #endif /* OPENSSL_NO_KTLS */
1614 SSL_set0_wbio(s, rbio);
1619 int SSL_set_rfd(SSL *s, int fd)
1621 BIO *wbio = SSL_get_wbio(s);
1623 if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET
1624 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
1625 BIO *bio = BIO_new(BIO_s_socket());
1628 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1631 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1632 SSL_set0_rbio(s, bio);
1635 SSL_set0_rbio(s, wbio);
1642 /* return length of latest Finished message we sent, copy to 'buf' */
1643 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
1646 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1651 ret = sc->s3.tmp.finish_md_len;
1654 memcpy(buf, sc->s3.tmp.finish_md, count);
1658 /* return length of latest Finished message we expected, copy to 'buf' */
1659 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
1662 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1667 ret = sc->s3.tmp.peer_finish_md_len;
1670 memcpy(buf, sc->s3.tmp.peer_finish_md, count);
1674 int SSL_get_verify_mode(const SSL *s)
1676 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1681 return sc->verify_mode;
1684 int SSL_get_verify_depth(const SSL *s)
1686 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1691 return X509_VERIFY_PARAM_get_depth(sc->param);
1694 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
1695 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1700 return sc->verify_callback;
1703 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
1705 return ctx->verify_mode;
1708 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
1710 return X509_VERIFY_PARAM_get_depth(ctx->param);
1713 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
1714 return ctx->default_verify_callback;
1717 void SSL_set_verify(SSL *s, int mode,
1718 int (*callback) (int ok, X509_STORE_CTX *ctx))
1720 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1725 sc->verify_mode = mode;
1726 if (callback != NULL)
1727 sc->verify_callback = callback;
1730 void SSL_set_verify_depth(SSL *s, int depth)
1732 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1737 X509_VERIFY_PARAM_set_depth(sc->param, depth);
1740 void SSL_set_read_ahead(SSL *s, int yes)
1742 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1743 OSSL_PARAM options[2], *opts = options;
1748 RECORD_LAYER_set_read_ahead(&sc->rlayer, yes);
1750 *opts++ = OSSL_PARAM_construct_int(OSSL_LIBSSL_RECORD_LAYER_PARAM_READ_AHEAD,
1751 &sc->rlayer.read_ahead);
1752 *opts = OSSL_PARAM_construct_end();
1754 /* Ignore return value */
1755 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
1758 int SSL_get_read_ahead(const SSL *s)
1760 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1765 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
1768 int SSL_pending(const SSL *s)
1770 size_t pending = s->method->ssl_pending(s);
1773 * SSL_pending cannot work properly if read-ahead is enabled
1774 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1775 * impossible to fix since SSL_pending cannot report errors that may be
1776 * observed while scanning the new data. (Note that SSL_pending() is
1777 * often used as a boolean value, so we'd better not return -1.)
1779 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1780 * we just return INT_MAX.
1782 return pending < INT_MAX ? (int)pending : INT_MAX;
1785 int SSL_has_pending(const SSL *s)
1788 * Similar to SSL_pending() but returns a 1 to indicate that we have
1789 * processed or unprocessed data available or 0 otherwise (as opposed to the
1790 * number of bytes available). Unlike SSL_pending() this will take into
1791 * account read_ahead data. A 1 return simply indicates that we have data.
1792 * That data may not result in any application data, or we may fail to parse
1793 * the records for some reason.
1795 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1797 /* Check buffered app data if any first */
1798 if (SSL_CONNECTION_IS_DTLS(sc)) {
1802 iter = pqueue_iterator(sc->rlayer.d->buffered_app_data.q);
1803 while ((item = pqueue_next(&iter)) != NULL) {
1805 if (rdata->length > 0)
1810 if (RECORD_LAYER_processed_read_pending(&sc->rlayer))
1813 return RECORD_LAYER_read_pending(&sc->rlayer);
1816 X509 *SSL_get1_peer_certificate(const SSL *s)
1818 X509 *r = SSL_get0_peer_certificate(s);
1826 X509 *SSL_get0_peer_certificate(const SSL *s)
1828 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1833 if (sc->session == NULL)
1836 return sc->session->peer;
1839 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
1842 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1847 if (sc->session == NULL)
1850 r = sc->session->peer_chain;
1853 * If we are a client, cert_chain includes the peer's own certificate; if
1854 * we are a server, it does not.
1861 * Now in theory, since the calling process own 't' it should be safe to
1862 * modify. We need to be able to read f without being hassled
1864 int SSL_copy_session_id(SSL *t, const SSL *f)
1867 /* TODO(QUIC): Do we want to support this for QUIC connections? */
1868 SSL_CONNECTION *tsc = SSL_CONNECTION_FROM_SSL_ONLY(t);
1869 const SSL_CONNECTION *fsc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(f);
1871 if (tsc == NULL || fsc == NULL)
1874 /* Do we need to do SSL locking? */
1875 if (!SSL_set_session(t, SSL_get_session(f))) {
1880 * what if we are setup for one protocol version but want to talk another
1882 if (t->method != f->method) {
1883 t->method->ssl_deinit(t);
1884 t->method = f->method;
1885 if (t->method->ssl_init(t) == 0)
1889 CRYPTO_UP_REF(&fsc->cert->references, &i, fsc->cert->lock);
1890 ssl_cert_free(tsc->cert);
1891 tsc->cert = fsc->cert;
1892 if (!SSL_set_session_id_context(t, fsc->sid_ctx, (int)fsc->sid_ctx_length)) {
1899 /* Fix this so it checks all the valid key/cert options */
1900 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
1902 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
1903 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
1906 if (ctx->cert->key->privatekey == NULL) {
1907 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1910 return X509_check_private_key
1911 (ctx->cert->key->x509, ctx->cert->key->privatekey);
1914 /* Fix this function so that it takes an optional type parameter */
1915 int SSL_check_private_key(const SSL *ssl)
1917 const SSL_CONNECTION *sc;
1919 if ((sc = SSL_CONNECTION_FROM_CONST_SSL(ssl)) == NULL) {
1920 ERR_raise(ERR_LIB_SSL, ERR_R_PASSED_NULL_PARAMETER);
1923 if (sc->cert->key->x509 == NULL) {
1924 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
1927 if (sc->cert->key->privatekey == NULL) {
1928 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1931 return X509_check_private_key(sc->cert->key->x509,
1932 sc->cert->key->privatekey);
1935 int SSL_waiting_for_async(SSL *s)
1937 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1948 int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
1950 ASYNC_WAIT_CTX *ctx;
1951 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1956 if ((ctx = sc->waitctx) == NULL)
1958 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
1961 int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
1962 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
1964 ASYNC_WAIT_CTX *ctx;
1965 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1970 if ((ctx = sc->waitctx) == NULL)
1972 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
1976 int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback)
1978 ctx->async_cb = callback;
1982 int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg)
1984 ctx->async_cb_arg = arg;
1988 int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback)
1990 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1995 sc->async_cb = callback;
1999 int SSL_set_async_callback_arg(SSL *s, void *arg)
2001 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2006 sc->async_cb_arg = arg;
2010 int SSL_get_async_status(SSL *s, int *status)
2012 ASYNC_WAIT_CTX *ctx;
2013 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2018 if ((ctx = sc->waitctx) == NULL)
2020 *status = ASYNC_WAIT_CTX_get_status(ctx);
2024 int SSL_accept(SSL *s)
2026 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2031 if (sc->handshake_func == NULL) {
2032 /* Not properly initialized yet */
2033 SSL_set_accept_state(s);
2036 return SSL_do_handshake(s);
2039 int SSL_connect(SSL *s)
2041 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2046 if (sc->handshake_func == NULL) {
2047 /* Not properly initialized yet */
2048 SSL_set_connect_state(s);
2051 return SSL_do_handshake(s);
2054 long SSL_get_default_timeout(const SSL *s)
2056 return (long int)ossl_time2seconds(s->method->get_timeout());
2059 static int ssl_async_wait_ctx_cb(void *arg)
2061 SSL *s = (SSL *)arg;
2062 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2067 return sc->async_cb(s, sc->async_cb_arg);
2070 static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
2071 int (*func) (void *))
2074 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2079 if (sc->waitctx == NULL) {
2080 sc->waitctx = ASYNC_WAIT_CTX_new();
2081 if (sc->waitctx == NULL)
2083 if (sc->async_cb != NULL
2084 && !ASYNC_WAIT_CTX_set_callback
2085 (sc->waitctx, ssl_async_wait_ctx_cb, s))
2089 sc->rwstate = SSL_NOTHING;
2090 switch (ASYNC_start_job(&sc->job, sc->waitctx, &ret, func, args,
2091 sizeof(struct ssl_async_args))) {
2093 sc->rwstate = SSL_NOTHING;
2094 ERR_raise(ERR_LIB_SSL, SSL_R_FAILED_TO_INIT_ASYNC);
2097 sc->rwstate = SSL_ASYNC_PAUSED;
2100 sc->rwstate = SSL_ASYNC_NO_JOBS;
2106 sc->rwstate = SSL_NOTHING;
2107 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
2108 /* Shouldn't happen */
2113 static int ssl_io_intern(void *vargs)
2115 struct ssl_async_args *args;
2121 args = (struct ssl_async_args *)vargs;
2125 if ((sc = SSL_CONNECTION_FROM_SSL(s)) == NULL)
2128 switch (args->type) {
2130 return args->f.func_read(s, buf, num, &sc->asyncrw);
2132 return args->f.func_write(s, buf, num, &sc->asyncrw);
2134 return args->f.func_other(s);
2139 int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2141 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2146 if (sc->handshake_func == NULL) {
2147 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2151 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2152 sc->rwstate = SSL_NOTHING;
2156 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2157 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
2158 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2162 * If we are a client and haven't received the ServerHello etc then we
2165 ossl_statem_check_finish_init(sc, 0);
2167 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2168 struct ssl_async_args args;
2174 args.type = READFUNC;
2175 args.f.func_read = s->method->ssl_read;
2177 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2178 *readbytes = sc->asyncrw;
2181 return s->method->ssl_read(s, buf, num, readbytes);
2185 int SSL_read(SSL *s, void *buf, int num)
2191 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2195 ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
2198 * The cast is safe here because ret should be <= INT_MAX because num is
2202 ret = (int)readbytes;
2207 int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2209 int ret = ssl_read_internal(s, buf, num, readbytes);
2216 int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
2219 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2221 /* TODO(QUIC): This will need special handling for QUIC */
2226 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2227 return SSL_READ_EARLY_DATA_ERROR;
2230 switch (sc->early_data_state) {
2231 case SSL_EARLY_DATA_NONE:
2232 if (!SSL_in_before(s)) {
2233 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2234 return SSL_READ_EARLY_DATA_ERROR;
2238 case SSL_EARLY_DATA_ACCEPT_RETRY:
2239 sc->early_data_state = SSL_EARLY_DATA_ACCEPTING;
2240 ret = SSL_accept(s);
2243 sc->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
2244 return SSL_READ_EARLY_DATA_ERROR;
2248 case SSL_EARLY_DATA_READ_RETRY:
2249 if (sc->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
2250 sc->early_data_state = SSL_EARLY_DATA_READING;
2251 ret = SSL_read_ex(s, buf, num, readbytes);
2253 * State machine will update early_data_state to
2254 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
2257 if (ret > 0 || (ret <= 0 && sc->early_data_state
2258 != SSL_EARLY_DATA_FINISHED_READING)) {
2259 sc->early_data_state = SSL_EARLY_DATA_READ_RETRY;
2260 return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
2261 : SSL_READ_EARLY_DATA_ERROR;
2264 sc->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
2267 return SSL_READ_EARLY_DATA_FINISH;
2270 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2271 return SSL_READ_EARLY_DATA_ERROR;
2275 int SSL_get_early_data_status(const SSL *s)
2277 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
2279 /* TODO(QUIC): This will need special handling for QUIC */
2283 return sc->ext.early_data;
2286 static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2288 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2293 if (sc->handshake_func == NULL) {
2294 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2298 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2301 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2302 struct ssl_async_args args;
2308 args.type = READFUNC;
2309 args.f.func_read = s->method->ssl_peek;
2311 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2312 *readbytes = sc->asyncrw;
2315 return s->method->ssl_peek(s, buf, num, readbytes);
2319 int SSL_peek(SSL *s, void *buf, int num)
2325 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2329 ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
2332 * The cast is safe here because ret should be <= INT_MAX because num is
2336 ret = (int)readbytes;
2342 int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2344 int ret = ssl_peek_internal(s, buf, num, readbytes);
2351 int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written)
2353 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2358 if (sc->handshake_func == NULL) {
2359 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2363 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2364 sc->rwstate = SSL_NOTHING;
2365 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2369 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2370 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
2371 || sc->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
2372 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2375 /* If we are a client and haven't sent the Finished we better do that */
2376 ossl_statem_check_finish_init(sc, 1);
2378 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2380 struct ssl_async_args args;
2383 args.buf = (void *)buf;
2385 args.type = WRITEFUNC;
2386 args.f.func_write = s->method->ssl_write;
2388 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2389 *written = sc->asyncrw;
2392 return s->method->ssl_write(s, buf, num, written);
2396 ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size, int flags)
2399 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2404 if (sc->handshake_func == NULL) {
2405 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2409 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2410 sc->rwstate = SSL_NOTHING;
2411 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2415 if (!BIO_get_ktls_send(sc->wbio)) {
2416 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2420 /* If we have an alert to send, lets send it */
2421 if (sc->s3.alert_dispatch > 0) {
2422 ret = (ossl_ssize_t)s->method->ssl_dispatch_alert(s);
2424 /* SSLfatal() already called if appropriate */
2427 /* if it went, fall through and send more stuff */
2430 sc->rwstate = SSL_WRITING;
2431 if (BIO_flush(sc->wbio) <= 0) {
2432 if (!BIO_should_retry(sc->wbio)) {
2433 sc->rwstate = SSL_NOTHING;
2436 set_sys_error(EAGAIN);
2442 #ifdef OPENSSL_NO_KTLS
2443 ERR_raise_data(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR,
2444 "can't call ktls_sendfile(), ktls disabled");
2447 ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags);
2449 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2450 if ((get_last_sys_error() == EAGAIN) ||
2451 (get_last_sys_error() == EINTR) ||
2452 (get_last_sys_error() == EBUSY))
2453 BIO_set_retry_write(sc->wbio);
2456 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2459 sc->rwstate = SSL_NOTHING;
2464 int SSL_write(SSL *s, const void *buf, int num)
2470 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2474 ret = ssl_write_internal(s, buf, (size_t)num, &written);
2477 * The cast is safe here because ret should be <= INT_MAX because num is
2486 int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
2488 int ret = ssl_write_internal(s, buf, num, written);
2495 int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
2497 int ret, early_data_state;
2499 uint32_t partialwrite;
2500 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2502 /* TODO(QUIC): This will need special handling for QUIC */
2506 switch (sc->early_data_state) {
2507 case SSL_EARLY_DATA_NONE:
2509 || !SSL_in_before(s)
2510 || ((sc->session == NULL || sc->session->ext.max_early_data == 0)
2511 && (sc->psk_use_session_cb == NULL))) {
2512 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2517 case SSL_EARLY_DATA_CONNECT_RETRY:
2518 sc->early_data_state = SSL_EARLY_DATA_CONNECTING;
2519 ret = SSL_connect(s);
2522 sc->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
2527 case SSL_EARLY_DATA_WRITE_RETRY:
2528 sc->early_data_state = SSL_EARLY_DATA_WRITING;
2530 * We disable partial write for early data because we don't keep track
2531 * of how many bytes we've written between the SSL_write_ex() call and
2532 * the flush if the flush needs to be retried)
2534 partialwrite = sc->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
2535 sc->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
2536 ret = SSL_write_ex(s, buf, num, &writtmp);
2537 sc->mode |= partialwrite;
2539 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2542 sc->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
2545 case SSL_EARLY_DATA_WRITE_FLUSH:
2546 /* The buffering BIO is still in place so we need to flush it */
2547 if (statem_flush(sc) != 1)
2550 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2553 case SSL_EARLY_DATA_FINISHED_READING:
2554 case SSL_EARLY_DATA_READ_RETRY:
2555 early_data_state = sc->early_data_state;
2556 /* We are a server writing to an unauthenticated client */
2557 sc->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
2558 ret = SSL_write_ex(s, buf, num, written);
2559 /* The buffering BIO is still in place */
2561 (void)BIO_flush(sc->wbio);
2562 sc->early_data_state = early_data_state;
2566 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2571 int SSL_shutdown(SSL *s)
2574 * Note that this function behaves differently from what one might
2575 * expect. Return values are 0 for no success (yet), 1 for success; but
2576 * calling it once is usually not enough, even if blocking I/O is used
2577 * (see ssl3_shutdown).
2579 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2584 if (sc->handshake_func == NULL) {
2585 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2589 if (!SSL_in_init(s)) {
2590 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2591 struct ssl_async_args args;
2593 memset(&args, 0, sizeof(args));
2595 args.type = OTHERFUNC;
2596 args.f.func_other = s->method->ssl_shutdown;
2598 return ssl_start_async_job(s, &args, ssl_io_intern);
2600 return s->method->ssl_shutdown(s);
2603 ERR_raise(ERR_LIB_SSL, SSL_R_SHUTDOWN_WHILE_IN_INIT);
2608 int SSL_key_update(SSL *s, int updatetype)
2610 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2615 if (!SSL_CONNECTION_IS_TLS13(sc)) {
2616 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2620 if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
2621 && updatetype != SSL_KEY_UPDATE_REQUESTED) {
2622 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_KEY_UPDATE_TYPE);
2626 if (!SSL_is_init_finished(s)) {
2627 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
2631 if (RECORD_LAYER_write_pending(&sc->rlayer)) {
2632 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_WRITE_RETRY);
2636 ossl_statem_set_in_init(sc, 1);
2637 sc->key_update = updatetype;
2641 int SSL_get_key_update_type(const SSL *s)
2643 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
2648 return sc->key_update;
2652 * Can we accept a renegotiation request? If yes, set the flag and
2653 * return 1 if yes. If not, raise error and return 0.
2655 static int can_renegotiate(const SSL_CONNECTION *sc)
2657 if (SSL_CONNECTION_IS_TLS13(sc)) {
2658 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2662 if ((sc->options & SSL_OP_NO_RENEGOTIATION) != 0) {
2663 ERR_raise(ERR_LIB_SSL, SSL_R_NO_RENEGOTIATION);
2670 int SSL_renegotiate(SSL *s)
2672 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2677 if (!can_renegotiate(sc))
2680 sc->renegotiate = 1;
2681 sc->new_session = 1;
2682 return s->method->ssl_renegotiate(s);
2685 int SSL_renegotiate_abbreviated(SSL *s)
2687 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2692 if (!can_renegotiate(sc))
2695 sc->renegotiate = 1;
2696 sc->new_session = 0;
2697 return s->method->ssl_renegotiate(s);
2700 int SSL_renegotiate_pending(const SSL *s)
2702 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2708 * becomes true when negotiation is requested; false again once a
2709 * handshake has finished
2711 return (sc->renegotiate != 0);
2714 int SSL_new_session_ticket(SSL *s)
2716 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2721 /* If we are in init because we're sending tickets, okay to send more. */
2722 if ((SSL_in_init(s) && sc->ext.extra_tickets_expected == 0)
2723 || SSL_IS_FIRST_HANDSHAKE(sc) || !sc->server
2724 || !SSL_CONNECTION_IS_TLS13(sc))
2726 sc->ext.extra_tickets_expected++;
2727 if (!RECORD_LAYER_write_pending(&sc->rlayer) && !SSL_in_init(s))
2728 ossl_statem_set_in_init(sc, 1);
2732 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
2735 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2737 /* TODO(QUIC): Special handling for some ctrls will be needed */
2742 case SSL_CTRL_GET_READ_AHEAD:
2743 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
2744 case SSL_CTRL_SET_READ_AHEAD:
2745 l = RECORD_LAYER_get_read_ahead(&sc->rlayer);
2746 RECORD_LAYER_set_read_ahead(&sc->rlayer, larg);
2749 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
2750 sc->msg_callback_arg = parg;
2755 OSSL_PARAM options[2], *opts = options;
2759 *opts++ = OSSL_PARAM_construct_uint32(OSSL_LIBSSL_RECORD_LAYER_PARAM_MODE,
2761 *opts = OSSL_PARAM_construct_end();
2763 /* Ignore return value */
2764 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
2768 case SSL_CTRL_CLEAR_MODE:
2769 return (sc->mode &= ~larg);
2770 case SSL_CTRL_GET_MAX_CERT_LIST:
2771 return (long)sc->max_cert_list;
2772 case SSL_CTRL_SET_MAX_CERT_LIST:
2775 l = (long)sc->max_cert_list;
2776 sc->max_cert_list = (size_t)larg;
2778 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2779 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2781 #ifndef OPENSSL_NO_KTLS
2782 if (sc->wbio != NULL && BIO_get_ktls_send(sc->wbio))
2784 #endif /* OPENSSL_NO_KTLS */
2785 sc->max_send_fragment = larg;
2786 if (sc->max_send_fragment < sc->split_send_fragment)
2787 sc->split_send_fragment = sc->max_send_fragment;
2788 sc->rlayer.wrlmethod->set_max_frag_len(sc->rlayer.wrl, larg);
2790 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2791 if ((size_t)larg > sc->max_send_fragment || larg == 0)
2793 sc->split_send_fragment = larg;
2795 case SSL_CTRL_SET_MAX_PIPELINES:
2796 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2798 sc->max_pipelines = larg;
2799 if (sc->rlayer.rrlmethod->set_max_pipelines != NULL)
2800 sc->rlayer.rrlmethod->set_max_pipelines(sc->rlayer.rrl, (size_t)larg);
2802 case SSL_CTRL_GET_RI_SUPPORT:
2803 return sc->s3.send_connection_binding;
2804 case SSL_CTRL_SET_RETRY_VERIFY:
2805 sc->rwstate = SSL_RETRY_VERIFY;
2807 case SSL_CTRL_CERT_FLAGS:
2808 return (sc->cert->cert_flags |= larg);
2809 case SSL_CTRL_CLEAR_CERT_FLAGS:
2810 return (sc->cert->cert_flags &= ~larg);
2812 case SSL_CTRL_GET_RAW_CIPHERLIST:
2814 if (sc->s3.tmp.ciphers_raw == NULL)
2816 *(unsigned char **)parg = sc->s3.tmp.ciphers_raw;
2817 return (int)sc->s3.tmp.ciphers_rawlen;
2819 return TLS_CIPHER_LEN;
2821 case SSL_CTRL_GET_EXTMS_SUPPORT:
2822 if (!sc->session || SSL_in_init(s) || ossl_statem_get_in_handshake(sc))
2824 if (sc->session->flags & SSL_SESS_FLAG_EXTMS)
2828 case SSL_CTRL_SET_MIN_PROTO_VERSION:
2829 return ssl_check_allowed_versions(larg, sc->max_proto_version)
2830 && ssl_set_version_bound(s->ctx->method->version, (int)larg,
2831 &sc->min_proto_version);
2832 case SSL_CTRL_GET_MIN_PROTO_VERSION:
2833 return sc->min_proto_version;
2834 case SSL_CTRL_SET_MAX_PROTO_VERSION:
2835 return ssl_check_allowed_versions(sc->min_proto_version, larg)
2836 && ssl_set_version_bound(s->ctx->method->version, (int)larg,
2837 &sc->max_proto_version);
2838 case SSL_CTRL_GET_MAX_PROTO_VERSION:
2839 return sc->max_proto_version;
2841 return s->method->ssl_ctrl(s, cmd, larg, parg);
2845 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
2847 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2853 case SSL_CTRL_SET_MSG_CALLBACK:
2854 sc->msg_callback = (void (*)
2855 (int write_p, int version, int content_type,
2856 const void *buf, size_t len, SSL *ssl,
2861 return s->method->ssl_callback_ctrl(s, cmd, fp);
2865 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
2867 return ctx->sessions;
2870 static int ssl_tsan_load(SSL_CTX *ctx, TSAN_QUALIFIER int *stat)
2874 if (ssl_tsan_lock(ctx)) {
2875 res = tsan_load(stat);
2876 ssl_tsan_unlock(ctx);
2881 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
2884 /* For some cases with ctx == NULL perform syntax checks */
2887 case SSL_CTRL_SET_GROUPS_LIST:
2888 return tls1_set_groups_list(ctx, NULL, NULL, parg);
2889 case SSL_CTRL_SET_SIGALGS_LIST:
2890 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
2891 return tls1_set_sigalgs_list(NULL, parg, 0);
2898 case SSL_CTRL_GET_READ_AHEAD:
2899 return ctx->read_ahead;
2900 case SSL_CTRL_SET_READ_AHEAD:
2901 l = ctx->read_ahead;
2902 ctx->read_ahead = larg;
2905 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
2906 ctx->msg_callback_arg = parg;
2909 case SSL_CTRL_GET_MAX_CERT_LIST:
2910 return (long)ctx->max_cert_list;
2911 case SSL_CTRL_SET_MAX_CERT_LIST:
2914 l = (long)ctx->max_cert_list;
2915 ctx->max_cert_list = (size_t)larg;
2918 case SSL_CTRL_SET_SESS_CACHE_SIZE:
2921 l = (long)ctx->session_cache_size;
2922 ctx->session_cache_size = (size_t)larg;
2924 case SSL_CTRL_GET_SESS_CACHE_SIZE:
2925 return (long)ctx->session_cache_size;
2926 case SSL_CTRL_SET_SESS_CACHE_MODE:
2927 l = ctx->session_cache_mode;
2928 ctx->session_cache_mode = larg;
2930 case SSL_CTRL_GET_SESS_CACHE_MODE:
2931 return ctx->session_cache_mode;
2933 case SSL_CTRL_SESS_NUMBER:
2934 return lh_SSL_SESSION_num_items(ctx->sessions);
2935 case SSL_CTRL_SESS_CONNECT:
2936 return ssl_tsan_load(ctx, &ctx->stats.sess_connect);
2937 case SSL_CTRL_SESS_CONNECT_GOOD:
2938 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_good);
2939 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
2940 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_renegotiate);
2941 case SSL_CTRL_SESS_ACCEPT:
2942 return ssl_tsan_load(ctx, &ctx->stats.sess_accept);
2943 case SSL_CTRL_SESS_ACCEPT_GOOD:
2944 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_good);
2945 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
2946 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_renegotiate);
2947 case SSL_CTRL_SESS_HIT:
2948 return ssl_tsan_load(ctx, &ctx->stats.sess_hit);
2949 case SSL_CTRL_SESS_CB_HIT:
2950 return ssl_tsan_load(ctx, &ctx->stats.sess_cb_hit);
2951 case SSL_CTRL_SESS_MISSES:
2952 return ssl_tsan_load(ctx, &ctx->stats.sess_miss);
2953 case SSL_CTRL_SESS_TIMEOUTS:
2954 return ssl_tsan_load(ctx, &ctx->stats.sess_timeout);
2955 case SSL_CTRL_SESS_CACHE_FULL:
2956 return ssl_tsan_load(ctx, &ctx->stats.sess_cache_full);
2958 return (ctx->mode |= larg);
2959 case SSL_CTRL_CLEAR_MODE:
2960 return (ctx->mode &= ~larg);
2961 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2962 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2964 ctx->max_send_fragment = larg;
2965 if (ctx->max_send_fragment < ctx->split_send_fragment)
2966 ctx->split_send_fragment = ctx->max_send_fragment;
2968 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2969 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
2971 ctx->split_send_fragment = larg;
2973 case SSL_CTRL_SET_MAX_PIPELINES:
2974 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2976 ctx->max_pipelines = larg;
2978 case SSL_CTRL_CERT_FLAGS:
2979 return (ctx->cert->cert_flags |= larg);
2980 case SSL_CTRL_CLEAR_CERT_FLAGS:
2981 return (ctx->cert->cert_flags &= ~larg);
2982 case SSL_CTRL_SET_MIN_PROTO_VERSION:
2983 return ssl_check_allowed_versions(larg, ctx->max_proto_version)
2984 && ssl_set_version_bound(ctx->method->version, (int)larg,
2985 &ctx->min_proto_version);
2986 case SSL_CTRL_GET_MIN_PROTO_VERSION:
2987 return ctx->min_proto_version;
2988 case SSL_CTRL_SET_MAX_PROTO_VERSION:
2989 return ssl_check_allowed_versions(ctx->min_proto_version, larg)
2990 && ssl_set_version_bound(ctx->method->version, (int)larg,
2991 &ctx->max_proto_version);
2992 case SSL_CTRL_GET_MAX_PROTO_VERSION:
2993 return ctx->max_proto_version;
2995 return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
2999 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
3002 case SSL_CTRL_SET_MSG_CALLBACK:
3003 ctx->msg_callback = (void (*)
3004 (int write_p, int version, int content_type,
3005 const void *buf, size_t len, SSL *ssl,
3010 return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
3014 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
3023 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
3024 const SSL_CIPHER *const *bp)
3026 if ((*ap)->id > (*bp)->id)
3028 if ((*ap)->id < (*bp)->id)
3034 * return a STACK of the ciphers available for the SSL and in order of
3037 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
3039 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3042 if (sc->cipher_list != NULL) {
3043 return sc->cipher_list;
3044 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
3045 return s->ctx->cipher_list;
3051 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
3053 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3055 if (sc == NULL || !sc->server)
3057 return sc->peer_ciphers;
3060 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
3062 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
3064 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3069 ciphers = SSL_get_ciphers(s);
3072 if (!ssl_set_client_disabled(sc))
3074 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
3075 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
3076 if (!ssl_cipher_disabled(sc, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
3078 sk = sk_SSL_CIPHER_new_null();
3081 if (!sk_SSL_CIPHER_push(sk, c)) {
3082 sk_SSL_CIPHER_free(sk);
3090 /** return a STACK of the ciphers available for the SSL and in order of
3092 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL_CONNECTION *s)
3095 if (s->cipher_list_by_id != NULL)
3096 return s->cipher_list_by_id;
3097 else if (s->ssl.ctx != NULL
3098 && s->ssl.ctx->cipher_list_by_id != NULL)
3099 return s->ssl.ctx->cipher_list_by_id;
3104 /** The old interface to get the same thing as SSL_get_ciphers() */
3105 const char *SSL_get_cipher_list(const SSL *s, int n)
3107 const SSL_CIPHER *c;
3108 STACK_OF(SSL_CIPHER) *sk;
3112 sk = SSL_get_ciphers(s);
3113 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
3115 c = sk_SSL_CIPHER_value(sk, n);
3121 /** return a STACK of the ciphers available for the SSL_CTX and in order of
3123 STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
3126 return ctx->cipher_list;
3131 * Distinguish between ciphers controlled by set_ciphersuite() and
3132 * set_cipher_list() when counting.
3134 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
3137 const SSL_CIPHER *c;
3141 for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
3142 c = sk_SSL_CIPHER_value(sk, i);
3143 if (c->min_tls >= TLS1_3_VERSION)
3150 /** specify the ciphers to be used by default by the SSL_CTX */
3151 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
3153 STACK_OF(SSL_CIPHER) *sk;
3155 sk = ssl_create_cipher_list(ctx, ctx->tls13_ciphersuites,
3156 &ctx->cipher_list, &ctx->cipher_list_by_id, str,
3159 * ssl_create_cipher_list may return an empty stack if it was unable to
3160 * find a cipher matching the given rule string (for example if the rule
3161 * string specifies a cipher which has been disabled). This is not an
3162 * error as far as ssl_create_cipher_list is concerned, and hence
3163 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
3167 else if (cipher_list_tls12_num(sk) == 0) {
3168 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3174 /** specify the ciphers to be used by the SSL */
3175 int SSL_set_cipher_list(SSL *s, const char *str)
3177 STACK_OF(SSL_CIPHER) *sk;
3178 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3183 sk = ssl_create_cipher_list(s->ctx, sc->tls13_ciphersuites,
3184 &sc->cipher_list, &sc->cipher_list_by_id, str,
3186 /* see comment in SSL_CTX_set_cipher_list */
3189 else if (cipher_list_tls12_num(sk) == 0) {
3190 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3196 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
3199 STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
3200 const SSL_CIPHER *c;
3202 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3208 || sc->peer_ciphers == NULL
3213 clntsk = sc->peer_ciphers;
3214 srvrsk = SSL_get_ciphers(s);
3215 if (clntsk == NULL || srvrsk == NULL)
3218 if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
3221 for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
3224 c = sk_SSL_CIPHER_value(clntsk, i);
3225 if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
3228 n = strlen(c->name);
3245 * Return the requested servername (SNI) value. Note that the behaviour varies
3247 * - whether this is called by the client or the server,
3248 * - if we are before or during/after the handshake,
3249 * - if a resumption or normal handshake is being attempted/has occurred
3250 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
3252 * Note that only the host_name type is defined (RFC 3546).
3254 const char *SSL_get_servername(const SSL *s, const int type)
3256 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3263 * If we don't know if we are the client or the server yet then we assume
3266 server = sc->handshake_func == NULL ? 0 : sc->server;
3268 if (type != TLSEXT_NAMETYPE_host_name)
3274 * In TLSv1.3 on the server SNI is not associated with the session
3275 * but in TLSv1.2 or below it is.
3277 * Before the handshake:
3280 * During/after the handshake (TLSv1.2 or below resumption occurred):
3281 * - If a servername was accepted by the server in the original
3282 * handshake then it will return that servername, or NULL otherwise.
3284 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3285 * - The function will return the servername requested by the client in
3286 * this handshake or NULL if none was requested.
3288 if (sc->hit && !SSL_CONNECTION_IS_TLS13(sc))
3289 return sc->session->ext.hostname;
3294 * Before the handshake:
3295 * - If a servername has been set via a call to
3296 * SSL_set_tlsext_host_name() then it will return that servername
3297 * - If one has not been set, but a TLSv1.2 resumption is being
3298 * attempted and the session from the original handshake had a
3299 * servername accepted by the server then it will return that
3301 * - Otherwise it returns NULL
3303 * During/after the handshake (TLSv1.2 or below resumption occurred):
3304 * - If the session from the original handshake had a servername accepted
3305 * by the server then it will return that servername.
3306 * - Otherwise it returns the servername set via
3307 * SSL_set_tlsext_host_name() (or NULL if it was not called).
3309 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3310 * - It will return the servername set via SSL_set_tlsext_host_name()
3311 * (or NULL if it was not called).
3313 if (SSL_in_before(s)) {
3314 if (sc->ext.hostname == NULL
3315 && sc->session != NULL
3316 && sc->session->ssl_version != TLS1_3_VERSION)
3317 return sc->session->ext.hostname;
3319 if (!SSL_CONNECTION_IS_TLS13(sc) && sc->hit
3320 && sc->session->ext.hostname != NULL)
3321 return sc->session->ext.hostname;
3325 return sc->ext.hostname;
3328 int SSL_get_servername_type(const SSL *s)
3330 if (SSL_get_servername(s, TLSEXT_NAMETYPE_host_name) != NULL)
3331 return TLSEXT_NAMETYPE_host_name;
3336 * SSL_select_next_proto implements the standard protocol selection. It is
3337 * expected that this function is called from the callback set by
3338 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
3339 * vector of 8-bit, length prefixed byte strings. The length byte itself is
3340 * not included in the length. A byte string of length 0 is invalid. No byte
3341 * string may be truncated. The current, but experimental algorithm for
3342 * selecting the protocol is: 1) If the server doesn't support NPN then this
3343 * is indicated to the callback. In this case, the client application has to
3344 * abort the connection or have a default application level protocol. 2) If
3345 * the server supports NPN, but advertises an empty list then the client
3346 * selects the first protocol in its list, but indicates via the API that this
3347 * fallback case was enacted. 3) Otherwise, the client finds the first
3348 * protocol in the server's list that it supports and selects this protocol.
3349 * This is because it's assumed that the server has better information about
3350 * which protocol a client should use. 4) If the client doesn't support any
3351 * of the server's advertised protocols, then this is treated the same as
3352 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
3353 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
3355 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
3356 const unsigned char *server,
3357 unsigned int server_len,
3358 const unsigned char *client, unsigned int client_len)
3361 const unsigned char *result;
3362 int status = OPENSSL_NPN_UNSUPPORTED;
3365 * For each protocol in server preference order, see if we support it.
3367 for (i = 0; i < server_len;) {
3368 for (j = 0; j < client_len;) {
3369 if (server[i] == client[j] &&
3370 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
3371 /* We found a match */
3372 result = &server[i];
3373 status = OPENSSL_NPN_NEGOTIATED;
3383 /* There's no overlap between our protocols and the server's list. */
3385 status = OPENSSL_NPN_NO_OVERLAP;
3388 *out = (unsigned char *)result + 1;
3389 *outlen = result[0];
3393 #ifndef OPENSSL_NO_NEXTPROTONEG
3395 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
3396 * client's requested protocol for this connection and returns 0. If the
3397 * client didn't request any protocol, then *data is set to NULL. Note that
3398 * the client can request any protocol it chooses. The value returned from
3399 * this function need not be a member of the list of supported protocols
3400 * provided by the callback.
3402 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
3405 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3408 /* We have no other way to indicate error */
3414 *data = sc->ext.npn;
3415 if (*data == NULL) {
3418 *len = (unsigned int)sc->ext.npn_len;
3423 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
3424 * a TLS server needs a list of supported protocols for Next Protocol
3425 * Negotiation. The returned list must be in wire format. The list is
3426 * returned by setting |out| to point to it and |outlen| to its length. This
3427 * memory will not be modified, but one should assume that the SSL* keeps a
3428 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
3429 * wishes to advertise. Otherwise, no such extension will be included in the
3432 void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
3433 SSL_CTX_npn_advertised_cb_func cb,
3436 ctx->ext.npn_advertised_cb = cb;
3437 ctx->ext.npn_advertised_cb_arg = arg;
3441 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
3442 * client needs to select a protocol from the server's provided list. |out|
3443 * must be set to point to the selected protocol (which may be within |in|).
3444 * The length of the protocol name must be written into |outlen|. The
3445 * server's advertised protocols are provided in |in| and |inlen|. The
3446 * callback can assume that |in| is syntactically valid. The client must
3447 * select a protocol. It is fatal to the connection if this callback returns
3448 * a value other than SSL_TLSEXT_ERR_OK.
3450 void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
3451 SSL_CTX_npn_select_cb_func cb,
3454 ctx->ext.npn_select_cb = cb;
3455 ctx->ext.npn_select_cb_arg = arg;
3459 static int alpn_value_ok(const unsigned char *protos, unsigned int protos_len)
3463 if (protos_len < 2 || protos == NULL)
3466 for (idx = 0; idx < protos_len; idx += protos[idx] + 1) {
3467 if (protos[idx] == 0)
3470 return idx == protos_len;
3473 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
3474 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3475 * length-prefixed strings). Returns 0 on success.
3477 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
3478 unsigned int protos_len)
3480 unsigned char *alpn;
3482 if (protos_len == 0 || protos == NULL) {
3483 OPENSSL_free(ctx->ext.alpn);
3484 ctx->ext.alpn = NULL;
3485 ctx->ext.alpn_len = 0;
3488 /* Not valid per RFC */
3489 if (!alpn_value_ok(protos, protos_len))
3492 alpn = OPENSSL_memdup(protos, protos_len);
3495 OPENSSL_free(ctx->ext.alpn);
3496 ctx->ext.alpn = alpn;
3497 ctx->ext.alpn_len = protos_len;
3503 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
3504 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3505 * length-prefixed strings). Returns 0 on success.
3507 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
3508 unsigned int protos_len)
3510 unsigned char *alpn;
3511 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
3516 if (protos_len == 0 || protos == NULL) {
3517 OPENSSL_free(sc->ext.alpn);
3518 sc->ext.alpn = NULL;
3519 sc->ext.alpn_len = 0;
3522 /* Not valid per RFC */
3523 if (!alpn_value_ok(protos, protos_len))
3526 alpn = OPENSSL_memdup(protos, protos_len);
3529 OPENSSL_free(sc->ext.alpn);
3530 sc->ext.alpn = alpn;
3531 sc->ext.alpn_len = protos_len;
3537 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3538 * called during ClientHello processing in order to select an ALPN protocol
3539 * from the client's list of offered protocols.
3541 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
3542 SSL_CTX_alpn_select_cb_func cb,
3545 ctx->ext.alpn_select_cb = cb;
3546 ctx->ext.alpn_select_cb_arg = arg;
3550 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3551 * On return it sets |*data| to point to |*len| bytes of protocol name
3552 * (not including the leading length-prefix byte). If the server didn't
3553 * respond with a negotiated protocol then |*len| will be zero.
3555 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
3558 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
3561 /* We have no other way to indicate error */
3567 *data = sc->s3.alpn_selected;
3571 *len = (unsigned int)sc->s3.alpn_selected_len;
3574 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
3575 const char *label, size_t llen,
3576 const unsigned char *context, size_t contextlen,
3579 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3584 if (sc->session == NULL
3585 || (sc->version < TLS1_VERSION && sc->version != DTLS1_BAD_VER))
3588 return s->method->ssl3_enc->export_keying_material(sc, out, olen, label,
3590 contextlen, use_context);
3593 int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
3594 const char *label, size_t llen,
3595 const unsigned char *context,
3598 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3603 if (sc->version != TLS1_3_VERSION)
3606 return tls13_export_keying_material_early(sc, out, olen, label, llen,
3607 context, contextlen);
3610 static unsigned long ssl_session_hash(const SSL_SESSION *a)
3612 const unsigned char *session_id = a->session_id;
3614 unsigned char tmp_storage[4];
3616 if (a->session_id_length < sizeof(tmp_storage)) {
3617 memset(tmp_storage, 0, sizeof(tmp_storage));
3618 memcpy(tmp_storage, a->session_id, a->session_id_length);
3619 session_id = tmp_storage;
3623 ((unsigned long)session_id[0]) |
3624 ((unsigned long)session_id[1] << 8L) |
3625 ((unsigned long)session_id[2] << 16L) |
3626 ((unsigned long)session_id[3] << 24L);
3631 * NB: If this function (or indeed the hash function which uses a sort of
3632 * coarser function than this one) is changed, ensure
3633 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3634 * being able to construct an SSL_SESSION that will collide with any existing
3635 * session with a matching session ID.
3637 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
3639 if (a->ssl_version != b->ssl_version)
3641 if (a->session_id_length != b->session_id_length)
3643 return memcmp(a->session_id, b->session_id, a->session_id_length);
3647 * These wrapper functions should remain rather than redeclaring
3648 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3649 * variable. The reason is that the functions aren't static, they're exposed
3653 SSL_CTX *SSL_CTX_new_ex(OSSL_LIB_CTX *libctx, const char *propq,
3654 const SSL_METHOD *meth)
3656 SSL_CTX *ret = NULL;
3657 #ifndef OPENSSL_NO_COMP_ALG
3662 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_METHOD_PASSED);
3666 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
3669 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3670 ERR_raise(ERR_LIB_SSL, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
3673 ret = OPENSSL_zalloc(sizeof(*ret));
3677 /* Init the reference counting before any call to SSL_CTX_free */
3678 ret->references = 1;
3679 ret->lock = CRYPTO_THREAD_lock_new();
3680 if (ret->lock == NULL) {
3681 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3685 #ifdef TSAN_REQUIRES_LOCKING
3686 ret->tsan_lock = CRYPTO_THREAD_lock_new();
3687 if (ret->tsan_lock == NULL) {
3688 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3693 ret->libctx = libctx;
3694 if (propq != NULL) {
3695 ret->propq = OPENSSL_strdup(propq);
3696 if (ret->propq == NULL)
3701 ret->min_proto_version = 0;
3702 ret->max_proto_version = 0;
3703 ret->mode = SSL_MODE_AUTO_RETRY;
3704 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
3705 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
3706 /* We take the system default. */
3707 ret->session_timeout = meth->get_timeout();
3708 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
3709 ret->verify_mode = SSL_VERIFY_NONE;
3710 if ((ret->cert = ssl_cert_new()) == NULL) {
3711 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3715 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
3716 if (ret->sessions == NULL) {
3717 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3720 ret->cert_store = X509_STORE_new();
3721 if (ret->cert_store == NULL) {
3722 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3725 #ifndef OPENSSL_NO_CT
3726 ret->ctlog_store = CTLOG_STORE_new_ex(libctx, propq);
3727 if (ret->ctlog_store == NULL) {
3728 ERR_raise(ERR_LIB_SSL, ERR_R_CT_LIB);
3733 /* initialize cipher/digest methods table */
3734 if (!ssl_load_ciphers(ret))
3736 /* initialise sig algs */
3737 if (!ssl_setup_sig_algs(ret))
3740 if (!ssl_load_groups(ret))
3743 if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites())) {
3744 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3748 if (!ssl_create_cipher_list(ret,
3749 ret->tls13_ciphersuites,
3750 &ret->cipher_list, &ret->cipher_list_by_id,
3751 OSSL_default_cipher_list(), ret->cert)
3752 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
3753 ERR_raise(ERR_LIB_SSL, SSL_R_LIBRARY_HAS_NO_CIPHERS);
3757 ret->param = X509_VERIFY_PARAM_new();
3758 if (ret->param == NULL) {
3759 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3764 * If these aren't available from the provider we'll get NULL returns.
3765 * That's fine but will cause errors later if SSLv3 is negotiated
3767 ret->md5 = ssl_evp_md_fetch(libctx, NID_md5, propq);
3768 ret->sha1 = ssl_evp_md_fetch(libctx, NID_sha1, propq);
3770 if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL) {
3771 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3775 if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL) {
3776 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3780 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) {
3781 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3785 if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
3788 /* No compression for DTLS */
3789 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
3790 ret->comp_methods = SSL_COMP_get_compression_methods();
3792 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3793 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3795 /* Setup RFC5077 ticket keys */
3796 if ((RAND_bytes_ex(libctx, ret->ext.tick_key_name,
3797 sizeof(ret->ext.tick_key_name), 0) <= 0)
3798 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_hmac_key,
3799 sizeof(ret->ext.secure->tick_hmac_key), 0) <= 0)
3800 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_aes_key,
3801 sizeof(ret->ext.secure->tick_aes_key), 0) <= 0))
3802 ret->options |= SSL_OP_NO_TICKET;
3804 if (RAND_priv_bytes_ex(libctx, ret->ext.cookie_hmac_key,
3805 sizeof(ret->ext.cookie_hmac_key), 0) <= 0) {
3806 ERR_raise(ERR_LIB_SSL, ERR_R_RAND_LIB);
3810 #ifndef OPENSSL_NO_SRP
3811 if (!ssl_ctx_srp_ctx_init_intern(ret)) {
3812 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3816 #ifndef OPENSSL_NO_ENGINE
3817 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3818 # define eng_strx(x) #x
3819 # define eng_str(x) eng_strx(x)
3820 /* Use specific client engine automatically... ignore errors */
3823 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3826 ENGINE_load_builtin_engines();
3827 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3829 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
3835 #ifndef OPENSSL_NO_COMP_ALG
3837 * Set the default order: brotli, zlib, zstd
3838 * Including only those enabled algorithms
3840 memset(ret->cert_comp_prefs, 0, sizeof(ret->cert_comp_prefs));
3842 if (ossl_comp_has_alg(TLSEXT_comp_cert_brotli))
3843 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_brotli;
3844 if (ossl_comp_has_alg(TLSEXT_comp_cert_zlib))
3845 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zlib;
3846 if (ossl_comp_has_alg(TLSEXT_comp_cert_zstd))
3847 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zstd;
3850 * Disable compression by default to prevent CRIME. Applications can
3851 * re-enable compression by configuring
3852 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3853 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3854 * middlebox compatibility by default. This may be disabled by default in
3855 * a later OpenSSL version.
3857 ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
3859 ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
3862 * We cannot usefully set a default max_early_data here (which gets
3863 * propagated in SSL_new(), for the following reason: setting the
3864 * SSL field causes tls_construct_stoc_early_data() to tell the
3865 * client that early data will be accepted when constructing a TLS 1.3
3866 * session ticket, and the client will accordingly send us early data
3867 * when using that ticket (if the client has early data to send).
3868 * However, in order for the early data to actually be consumed by
3869 * the application, the application must also have calls to
3870 * SSL_read_early_data(); otherwise we'll just skip past the early data
3871 * and ignore it. So, since the application must add calls to
3872 * SSL_read_early_data(), we also require them to add
3873 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3874 * eliminating the bandwidth-wasting early data in the case described
3877 ret->max_early_data = 0;
3880 * Default recv_max_early_data is a fully loaded single record. Could be
3881 * split across multiple records in practice. We set this differently to
3882 * max_early_data so that, in the default case, we do not advertise any
3883 * support for early_data, but if a client were to send us some (e.g.
3884 * because of an old, stale ticket) then we will tolerate it and skip over
3887 ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
3889 /* By default we send two session tickets automatically in TLSv1.3 */
3890 ret->num_tickets = 2;
3892 ssl_ctx_system_config(ret);
3900 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
3902 return SSL_CTX_new_ex(NULL, NULL, meth);
3905 int SSL_CTX_up_ref(SSL_CTX *ctx)
3909 if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0)
3912 REF_PRINT_COUNT("SSL_CTX", ctx);
3913 REF_ASSERT_ISNT(i < 2);
3914 return ((i > 1) ? 1 : 0);
3917 void SSL_CTX_free(SSL_CTX *a)
3925 CRYPTO_DOWN_REF(&a->references, &i, a->lock);
3926 REF_PRINT_COUNT("SSL_CTX", a);
3929 REF_ASSERT_ISNT(i < 0);
3931 X509_VERIFY_PARAM_free(a->param);
3932 dane_ctx_final(&a->dane);
3935 * Free internal session cache. However: the remove_cb() may reference
3936 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3937 * after the sessions were flushed.
3938 * As the ex_data handling routines might also touch the session cache,
3939 * the most secure solution seems to be: empty (flush) the cache, then
3940 * free ex_data, then finally free the cache.
3941 * (See ticket [openssl.org #212].)
3943 if (a->sessions != NULL)
3944 SSL_CTX_flush_sessions(a, 0);
3946 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
3947 lh_SSL_SESSION_free(a->sessions);
3948 X509_STORE_free(a->cert_store);
3949 #ifndef OPENSSL_NO_CT
3950 CTLOG_STORE_free(a->ctlog_store);
3952 sk_SSL_CIPHER_free(a->cipher_list);
3953 sk_SSL_CIPHER_free(a->cipher_list_by_id);
3954 sk_SSL_CIPHER_free(a->tls13_ciphersuites);
3955 ssl_cert_free(a->cert);
3956 sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
3957 sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
3958 OSSL_STACK_OF_X509_free(a->extra_certs);
3959 a->comp_methods = NULL;
3960 #ifndef OPENSSL_NO_SRTP
3961 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
3963 #ifndef OPENSSL_NO_SRP
3964 ssl_ctx_srp_ctx_free_intern(a);
3966 #ifndef OPENSSL_NO_ENGINE
3967 tls_engine_finish(a->client_cert_engine);
3970 OPENSSL_free(a->ext.ecpointformats);
3971 OPENSSL_free(a->ext.supportedgroups);
3972 OPENSSL_free(a->ext.supported_groups_default);
3973 OPENSSL_free(a->ext.alpn);
3974 OPENSSL_secure_free(a->ext.secure);
3976 ssl_evp_md_free(a->md5);
3977 ssl_evp_md_free(a->sha1);
3979 for (j = 0; j < SSL_ENC_NUM_IDX; j++)
3980 ssl_evp_cipher_free(a->ssl_cipher_methods[j]);
3981 for (j = 0; j < SSL_MD_NUM_IDX; j++)
3982 ssl_evp_md_free(a->ssl_digest_methods[j]);
3983 for (j = 0; j < a->group_list_len; j++) {
3984 OPENSSL_free(a->group_list[j].tlsname);
3985 OPENSSL_free(a->group_list[j].realname);
3986 OPENSSL_free(a->group_list[j].algorithm);
3988 OPENSSL_free(a->group_list);
3990 OPENSSL_free(a->sigalg_lookup_cache);
3992 CRYPTO_THREAD_lock_free(a->lock);
3993 #ifdef TSAN_REQUIRES_LOCKING
3994 CRYPTO_THREAD_lock_free(a->tsan_lock);
3997 OPENSSL_free(a->propq);
4002 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
4004 ctx->default_passwd_callback = cb;
4007 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
4009 ctx->default_passwd_callback_userdata = u;
4012 pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
4014 return ctx->default_passwd_callback;
4017 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
4019 return ctx->default_passwd_callback_userdata;
4022 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
4024 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4029 sc->default_passwd_callback = cb;
4032 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
4034 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4039 sc->default_passwd_callback_userdata = u;
4042 pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
4044 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4049 return sc->default_passwd_callback;
4052 void *SSL_get_default_passwd_cb_userdata(SSL *s)
4054 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4059 return sc->default_passwd_callback_userdata;
4062 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
4063 int (*cb) (X509_STORE_CTX *, void *),
4066 ctx->app_verify_callback = cb;
4067 ctx->app_verify_arg = arg;
4070 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
4071 int (*cb) (int, X509_STORE_CTX *))
4073 ctx->verify_mode = mode;
4074 ctx->default_verify_callback = cb;
4077 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
4079 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
4082 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
4084 ssl_cert_set_cert_cb(c->cert, cb, arg);
4087 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
4089 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4094 ssl_cert_set_cert_cb(sc->cert, cb, arg);
4097 void ssl_set_masks(SSL_CONNECTION *s)
4100 uint32_t *pvalid = s->s3.tmp.valid_flags;
4101 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
4102 unsigned long mask_k, mask_a;
4103 int have_ecc_cert, ecdsa_ok;
4108 dh_tmp = (c->dh_tmp != NULL
4109 || c->dh_tmp_cb != NULL
4112 rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4113 rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4114 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
4115 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
4119 OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
4120 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
4122 #ifndef OPENSSL_NO_GOST
4123 if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
4124 mask_k |= SSL_kGOST | SSL_kGOST18;
4125 mask_a |= SSL_aGOST12;
4127 if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
4128 mask_k |= SSL_kGOST | SSL_kGOST18;
4129 mask_a |= SSL_aGOST12;
4131 if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
4132 mask_k |= SSL_kGOST;
4133 mask_a |= SSL_aGOST01;
4144 * If we only have an RSA-PSS certificate allow RSA authentication
4145 * if TLS 1.2 and peer supports it.
4148 if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
4149 && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
4150 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION))
4157 mask_a |= SSL_aNULL;
4160 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
4161 * depending on the key usage extension.
4163 if (have_ecc_cert) {
4165 ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
4166 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
4167 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
4170 mask_a |= SSL_aECDSA;
4172 /* Allow Ed25519 for TLS 1.2 if peer supports it */
4173 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
4174 && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
4175 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4176 mask_a |= SSL_aECDSA;
4178 /* Allow Ed448 for TLS 1.2 if peer supports it */
4179 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
4180 && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
4181 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4182 mask_a |= SSL_aECDSA;
4184 mask_k |= SSL_kECDHE;
4186 #ifndef OPENSSL_NO_PSK
4189 if (mask_k & SSL_kRSA)
4190 mask_k |= SSL_kRSAPSK;
4191 if (mask_k & SSL_kDHE)
4192 mask_k |= SSL_kDHEPSK;
4193 if (mask_k & SSL_kECDHE)
4194 mask_k |= SSL_kECDHEPSK;
4197 s->s3.tmp.mask_k = mask_k;
4198 s->s3.tmp.mask_a = mask_a;
4201 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CONNECTION *s)
4203 if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
4204 /* key usage, if present, must allow signing */
4205 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
4206 ERR_raise(ERR_LIB_SSL, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
4210 return 1; /* all checks are ok */
4213 int ssl_get_server_cert_serverinfo(SSL_CONNECTION *s,
4214 const unsigned char **serverinfo,
4215 size_t *serverinfo_length)
4217 CERT_PKEY *cpk = s->s3.tmp.cert;
4218 *serverinfo_length = 0;
4220 if (cpk == NULL || cpk->serverinfo == NULL)
4223 *serverinfo = cpk->serverinfo;
4224 *serverinfo_length = cpk->serverinfo_length;
4228 void ssl_update_cache(SSL_CONNECTION *s, int mode)
4233 * If the session_id_length is 0, we are not supposed to cache it, and it
4234 * would be rather hard to do anyway :-)
4236 if (s->session->session_id_length == 0)
4240 * If sid_ctx_length is 0 there is no specific application context
4241 * associated with this session, so when we try to resume it and
4242 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
4243 * indication that this is actually a session for the proper application
4244 * context, and the *handshake* will fail, not just the resumption attempt.
4245 * Do not cache (on the server) these sessions that are not resumable
4246 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
4248 if (s->server && s->session->sid_ctx_length == 0
4249 && (s->verify_mode & SSL_VERIFY_PEER) != 0)
4252 i = s->session_ctx->session_cache_mode;
4254 && (!s->hit || SSL_CONNECTION_IS_TLS13(s))) {
4256 * Add the session to the internal cache. In server side TLSv1.3 we
4257 * normally don't do this because by default it's a full stateless ticket
4258 * with only a dummy session id so there is no reason to cache it,
4260 * - we are doing early_data, in which case we cache so that we can
4262 * - the application has set a remove_session_cb so needs to know about
4263 * session timeout events
4264 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
4266 if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
4267 && (!SSL_CONNECTION_IS_TLS13(s)
4269 || (s->max_early_data > 0
4270 && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
4271 || s->session_ctx->remove_session_cb != NULL
4272 || (s->options & SSL_OP_NO_TICKET) != 0))
4273 SSL_CTX_add_session(s->session_ctx, s->session);
4276 * Add the session to the external cache. We do this even in server side
4277 * TLSv1.3 without early data because some applications just want to
4278 * know about the creation of a session and aren't doing a full cache.
4280 if (s->session_ctx->new_session_cb != NULL) {
4281 SSL_SESSION_up_ref(s->session);
4282 if (!s->session_ctx->new_session_cb(SSL_CONNECTION_GET_SSL(s),
4284 SSL_SESSION_free(s->session);
4288 /* auto flush every 255 connections */
4289 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
4290 TSAN_QUALIFIER int *stat;
4292 if (mode & SSL_SESS_CACHE_CLIENT)
4293 stat = &s->session_ctx->stats.sess_connect_good;
4295 stat = &s->session_ctx->stats.sess_accept_good;
4296 if ((ssl_tsan_load(s->session_ctx, stat) & 0xff) == 0xff)
4297 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
4301 const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
4306 const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
4311 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
4314 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4316 /* TODO(QUIC): Do we want this for QUIC? */
4318 || (s->type != SSL_TYPE_SSL_CONNECTION && s->method != meth))
4321 if (s->method != meth) {
4322 const SSL_METHOD *sm = s->method;
4323 int (*hf) (SSL *) = sc->handshake_func;
4325 if (sm->version == meth->version)
4330 ret = s->method->ssl_init(s);
4333 if (hf == sm->ssl_connect)
4334 sc->handshake_func = meth->ssl_connect;
4335 else if (hf == sm->ssl_accept)
4336 sc->handshake_func = meth->ssl_accept;
4341 int SSL_get_error(const SSL *s, int i)
4346 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4349 return SSL_ERROR_NONE;
4351 /* TODO(QUIC): This will need more handling for QUIC_CONNECTIONs */
4353 return SSL_ERROR_SSL;
4356 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
4357 * where we do encode the error
4359 if ((l = ERR_peek_error()) != 0) {
4360 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
4361 return SSL_ERROR_SYSCALL;
4363 return SSL_ERROR_SSL;
4366 if (SSL_want_read(s)) {
4367 bio = SSL_get_rbio(s);
4368 if (BIO_should_read(bio))
4369 return SSL_ERROR_WANT_READ;
4370 else if (BIO_should_write(bio))
4372 * This one doesn't make too much sense ... We never try to write
4373 * to the rbio, and an application program where rbio and wbio
4374 * are separate couldn't even know what it should wait for.
4375 * However if we ever set s->rwstate incorrectly (so that we have
4376 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
4377 * wbio *are* the same, this test works around that bug; so it
4378 * might be safer to keep it.
4380 return SSL_ERROR_WANT_WRITE;
4381 else if (BIO_should_io_special(bio)) {
4382 reason = BIO_get_retry_reason(bio);
4383 if (reason == BIO_RR_CONNECT)
4384 return SSL_ERROR_WANT_CONNECT;
4385 else if (reason == BIO_RR_ACCEPT)
4386 return SSL_ERROR_WANT_ACCEPT;
4388 return SSL_ERROR_SYSCALL; /* unknown */
4392 if (SSL_want_write(s)) {
4393 /* Access wbio directly - in order to use the buffered bio if present */
4395 if (BIO_should_write(bio))
4396 return SSL_ERROR_WANT_WRITE;
4397 else if (BIO_should_read(bio))
4399 * See above (SSL_want_read(s) with BIO_should_write(bio))
4401 return SSL_ERROR_WANT_READ;
4402 else if (BIO_should_io_special(bio)) {
4403 reason = BIO_get_retry_reason(bio);
4404 if (reason == BIO_RR_CONNECT)
4405 return SSL_ERROR_WANT_CONNECT;
4406 else if (reason == BIO_RR_ACCEPT)
4407 return SSL_ERROR_WANT_ACCEPT;
4409 return SSL_ERROR_SYSCALL;
4412 if (SSL_want_x509_lookup(s))
4413 return SSL_ERROR_WANT_X509_LOOKUP;
4414 if (SSL_want_retry_verify(s))
4415 return SSL_ERROR_WANT_RETRY_VERIFY;
4416 if (SSL_want_async(s))
4417 return SSL_ERROR_WANT_ASYNC;
4418 if (SSL_want_async_job(s))
4419 return SSL_ERROR_WANT_ASYNC_JOB;
4420 if (SSL_want_client_hello_cb(s))
4421 return SSL_ERROR_WANT_CLIENT_HELLO_CB;
4423 if ((sc->shutdown & SSL_RECEIVED_SHUTDOWN) &&
4424 (sc->s3.warn_alert == SSL_AD_CLOSE_NOTIFY))
4425 return SSL_ERROR_ZERO_RETURN;
4427 return SSL_ERROR_SYSCALL;
4430 static int ssl_do_handshake_intern(void *vargs)
4432 struct ssl_async_args *args = (struct ssl_async_args *)vargs;
4434 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4439 return sc->handshake_func(s);
4442 int SSL_do_handshake(SSL *s)
4445 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4447 /* TODO(QUIC): Special handling for QUIC will be needed */
4451 if (sc->handshake_func == NULL) {
4452 ERR_raise(ERR_LIB_SSL, SSL_R_CONNECTION_TYPE_NOT_SET);
4456 ossl_statem_check_finish_init(sc, -1);
4458 s->method->ssl_renegotiate_check(s, 0);
4460 if (SSL_in_init(s) || SSL_in_before(s)) {
4461 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
4462 struct ssl_async_args args;
4464 memset(&args, 0, sizeof(args));
4467 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
4469 ret = sc->handshake_func(s);
4475 void SSL_set_accept_state(SSL *s)
4477 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4479 /* TODO(QUIC): Special handling for QUIC will be needed */
4485 ossl_statem_clear(sc);
4486 sc->handshake_func = s->method->ssl_accept;
4487 /* Ignore return value. Its a void public API function */
4488 clear_record_layer(sc);
4491 void SSL_set_connect_state(SSL *s)
4493 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4495 /* TODO(QUIC): Special handling for QUIC will be needed */
4501 ossl_statem_clear(sc);
4502 sc->handshake_func = s->method->ssl_connect;
4503 /* Ignore return value. Its a void public API function */
4504 clear_record_layer(sc);
4507 int ssl_undefined_function(SSL *s)
4509 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4513 int ssl_undefined_void_function(void)
4515 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4519 int ssl_undefined_const_function(const SSL *s)
4524 const SSL_METHOD *ssl_bad_method(int ver)
4526 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4530 const char *ssl_protocol_to_string(int version)
4534 case TLS1_3_VERSION:
4537 case TLS1_2_VERSION:
4540 case TLS1_1_VERSION:
4555 case DTLS1_2_VERSION:
4563 const char *SSL_get_version(const SSL *s)
4565 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4567 /* TODO(QUIC): Should QUIC return QUIC or TLSv1.3? */
4571 return ssl_protocol_to_string(sc->version);
4574 static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
4576 STACK_OF(X509_NAME) *sk;
4585 if ((sk = sk_X509_NAME_new_null()) == NULL)
4587 for (i = 0; i < sk_X509_NAME_num(src); i++) {
4588 xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
4590 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4593 if (sk_X509_NAME_insert(sk, xn, i) == 0) {
4595 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4604 SSL *SSL_dup(SSL *s)
4608 /* TODO(QUIC): Add a SSL_METHOD function for duplication */
4609 SSL_CONNECTION *retsc;
4610 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4615 /* If we're not quiescent, just up_ref! */
4616 if (!SSL_in_init(s) || !SSL_in_before(s)) {
4617 CRYPTO_UP_REF(&s->references, &i, s->lock);
4622 * Otherwise, copy configuration state, and session if set.
4624 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
4626 if ((retsc = SSL_CONNECTION_FROM_SSL_ONLY(ret)) == NULL)
4629 if (sc->session != NULL) {
4631 * Arranges to share the same session via up_ref. This "copies"
4632 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4634 if (!SSL_copy_session_id(ret, s))
4638 * No session has been established yet, so we have to expect that
4639 * s->cert or ret->cert will be changed later -- they should not both
4640 * point to the same object, and thus we can't use
4641 * SSL_copy_session_id.
4643 if (!SSL_set_ssl_method(ret, s->method))
4646 if (sc->cert != NULL) {
4647 ssl_cert_free(retsc->cert);
4648 retsc->cert = ssl_cert_dup(sc->cert);
4649 if (retsc->cert == NULL)
4653 if (!SSL_set_session_id_context(ret, sc->sid_ctx,
4654 (int)sc->sid_ctx_length))
4658 if (!ssl_dane_dup(retsc, sc))
4660 retsc->version = sc->version;
4661 retsc->options = sc->options;
4662 retsc->min_proto_version = sc->min_proto_version;
4663 retsc->max_proto_version = sc->max_proto_version;
4664 retsc->mode = sc->mode;
4665 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
4666 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
4667 retsc->msg_callback = sc->msg_callback;
4668 retsc->msg_callback_arg = sc->msg_callback_arg;
4669 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
4670 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
4671 retsc->generate_session_id = sc->generate_session_id;
4673 SSL_set_info_callback(ret, SSL_get_info_callback(s));
4675 /* copy app data, a little dangerous perhaps */
4676 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
4679 retsc->server = sc->server;
4680 if (sc->handshake_func) {
4682 SSL_set_accept_state(ret);
4684 SSL_set_connect_state(ret);
4686 retsc->shutdown = sc->shutdown;
4687 retsc->hit = sc->hit;
4689 retsc->default_passwd_callback = sc->default_passwd_callback;
4690 retsc->default_passwd_callback_userdata = sc->default_passwd_callback_userdata;
4692 X509_VERIFY_PARAM_inherit(retsc->param, sc->param);
4694 /* dup the cipher_list and cipher_list_by_id stacks */
4695 if (sc->cipher_list != NULL) {
4696 if ((retsc->cipher_list = sk_SSL_CIPHER_dup(sc->cipher_list)) == NULL)
4699 if (sc->cipher_list_by_id != NULL)
4700 if ((retsc->cipher_list_by_id = sk_SSL_CIPHER_dup(sc->cipher_list_by_id))
4704 /* Dup the client_CA list */
4705 if (!dup_ca_names(&retsc->ca_names, sc->ca_names)
4706 || !dup_ca_names(&retsc->client_ca_names, sc->client_ca_names))
4716 X509 *SSL_get_certificate(const SSL *s)
4718 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4723 if (sc->cert != NULL)
4724 return sc->cert->key->x509;
4729 EVP_PKEY *SSL_get_privatekey(const SSL *s)
4731 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4736 if (sc->cert != NULL)
4737 return sc->cert->key->privatekey;
4742 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
4744 if (ctx->cert != NULL)
4745 return ctx->cert->key->x509;
4750 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
4752 if (ctx->cert != NULL)
4753 return ctx->cert->key->privatekey;
4758 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
4760 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4765 if ((sc->session != NULL) && (sc->session->cipher != NULL))
4766 return sc->session->cipher;
4770 const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
4772 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4777 return sc->s3.tmp.new_cipher;
4780 const COMP_METHOD *SSL_get_current_compression(const SSL *s)
4782 #ifndef OPENSSL_NO_COMP
4783 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
4788 return sc->rlayer.wrlmethod->get_compression(sc->rlayer.wrl);
4794 const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
4796 #ifndef OPENSSL_NO_COMP
4797 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
4802 return sc->rlayer.rrlmethod->get_compression(sc->rlayer.rrl);
4808 int ssl_init_wbio_buffer(SSL_CONNECTION *s)
4812 if (s->bbio != NULL) {
4813 /* Already buffered. */
4817 bbio = BIO_new(BIO_f_buffer());
4818 if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) {
4820 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
4824 s->wbio = BIO_push(bbio, s->wbio);
4826 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
4831 int ssl_free_wbio_buffer(SSL_CONNECTION *s)
4833 /* callers ensure s is never null */
4834 if (s->bbio == NULL)
4837 s->wbio = BIO_pop(s->wbio);
4838 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
4846 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
4848 ctx->quiet_shutdown = mode;
4851 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
4853 return ctx->quiet_shutdown;
4856 void SSL_set_quiet_shutdown(SSL *s, int mode)
4858 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4860 /* TODO(QUIC): Do we want this for QUIC? */
4864 sc->quiet_shutdown = mode;
4867 int SSL_get_quiet_shutdown(const SSL *s)
4869 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
4871 /* TODO(QUIC): Do we want this for QUIC? */
4875 return sc->quiet_shutdown;
4878 void SSL_set_shutdown(SSL *s, int mode)
4880 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4882 /* TODO(QUIC): Do we want this for QUIC? */
4886 sc->shutdown = mode;
4889 int SSL_get_shutdown(const SSL *s)
4891 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
4893 /* TODO(QUIC): Do we want this for QUIC? */
4897 return sc->shutdown;
4900 int SSL_version(const SSL *s)
4902 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4904 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
4911 int SSL_client_version(const SSL *s)
4913 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4915 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
4919 return sc->client_version;
4922 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
4927 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
4930 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
4932 /* TODO(QUIC): Do we need this for QUIC support? */
4936 if (ssl->ctx == ctx)
4939 ctx = sc->session_ctx;
4940 new_cert = ssl_cert_dup(ctx->cert);
4941 if (new_cert == NULL) {
4945 if (!custom_exts_copy_flags(&new_cert->custext, &sc->cert->custext)) {
4946 ssl_cert_free(new_cert);
4950 ssl_cert_free(sc->cert);
4951 sc->cert = new_cert;
4954 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
4955 * so setter APIs must prevent invalid lengths from entering the system.
4957 if (!ossl_assert(sc->sid_ctx_length <= sizeof(sc->sid_ctx)))
4961 * If the session ID context matches that of the parent SSL_CTX,
4962 * inherit it from the new SSL_CTX as well. If however the context does
4963 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
4964 * leave it unchanged.
4966 if ((ssl->ctx != NULL) &&
4967 (sc->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
4968 (memcmp(sc->sid_ctx, ssl->ctx->sid_ctx, sc->sid_ctx_length) == 0)) {
4969 sc->sid_ctx_length = ctx->sid_ctx_length;
4970 memcpy(&sc->sid_ctx, &ctx->sid_ctx, sizeof(sc->sid_ctx));
4973 SSL_CTX_up_ref(ctx);
4974 SSL_CTX_free(ssl->ctx); /* decrement reference count */
4980 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
4982 return X509_STORE_set_default_paths_ex(ctx->cert_store, ctx->libctx,
4986 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
4988 X509_LOOKUP *lookup;
4990 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
4994 /* We ignore errors, in case the directory doesn't exist */
4997 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
5004 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
5006 X509_LOOKUP *lookup;
5008 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
5012 /* We ignore errors, in case the file doesn't exist */
5015 X509_LOOKUP_load_file_ex(lookup, NULL, X509_FILETYPE_DEFAULT, ctx->libctx,
5023 int SSL_CTX_set_default_verify_store(SSL_CTX *ctx)
5025 X509_LOOKUP *lookup;
5027 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_store());
5031 /* We ignore errors, in case the directory doesn't exist */
5034 X509_LOOKUP_add_store_ex(lookup, NULL, ctx->libctx, ctx->propq);
5041 int SSL_CTX_load_verify_file(SSL_CTX *ctx, const char *CAfile)
5043 return X509_STORE_load_file_ex(ctx->cert_store, CAfile, ctx->libctx,
5047 int SSL_CTX_load_verify_dir(SSL_CTX *ctx, const char *CApath)
5049 return X509_STORE_load_path(ctx->cert_store, CApath);
5052 int SSL_CTX_load_verify_store(SSL_CTX *ctx, const char *CAstore)
5054 return X509_STORE_load_store_ex(ctx->cert_store, CAstore, ctx->libctx,
5058 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
5061 if (CAfile == NULL && CApath == NULL)
5063 if (CAfile != NULL && !SSL_CTX_load_verify_file(ctx, CAfile))
5065 if (CApath != NULL && !SSL_CTX_load_verify_dir(ctx, CApath))
5070 void SSL_set_info_callback(SSL *ssl,
5071 void (*cb) (const SSL *ssl, int type, int val))
5073 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5078 sc->info_callback = cb;
5082 * One compiler (Diab DCC) doesn't like argument names in returned function
5085 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
5088 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5093 return sc->info_callback;
5096 void SSL_set_verify_result(SSL *ssl, long arg)
5098 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5103 sc->verify_result = arg;
5106 long SSL_get_verify_result(const SSL *ssl)
5108 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5113 return sc->verify_result;
5116 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
5118 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5124 return sizeof(sc->s3.client_random);
5125 if (outlen > sizeof(sc->s3.client_random))
5126 outlen = sizeof(sc->s3.client_random);
5127 memcpy(out, sc->s3.client_random, outlen);
5131 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
5133 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5139 return sizeof(sc->s3.server_random);
5140 if (outlen > sizeof(sc->s3.server_random))
5141 outlen = sizeof(sc->s3.server_random);
5142 memcpy(out, sc->s3.server_random, outlen);
5146 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
5147 unsigned char *out, size_t outlen)
5150 return session->master_key_length;
5151 if (outlen > session->master_key_length)
5152 outlen = session->master_key_length;
5153 memcpy(out, session->master_key, outlen);
5157 int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
5160 if (len > sizeof(sess->master_key))
5163 memcpy(sess->master_key, in, len);
5164 sess->master_key_length = len;
5169 int SSL_set_ex_data(SSL *s, int idx, void *arg)
5171 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5174 void *SSL_get_ex_data(const SSL *s, int idx)
5176 return CRYPTO_get_ex_data(&s->ex_data, idx);
5179 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
5181 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5184 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
5186 return CRYPTO_get_ex_data(&s->ex_data, idx);
5189 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
5191 return ctx->cert_store;
5194 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
5196 X509_STORE_free(ctx->cert_store);
5197 ctx->cert_store = store;
5200 void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
5203 X509_STORE_up_ref(store);
5204 SSL_CTX_set_cert_store(ctx, store);
5207 int SSL_want(const SSL *s)
5209 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5217 #ifndef OPENSSL_NO_PSK
5218 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
5220 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5221 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5224 OPENSSL_free(ctx->cert->psk_identity_hint);
5225 if (identity_hint != NULL) {
5226 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5227 if (ctx->cert->psk_identity_hint == NULL)
5230 ctx->cert->psk_identity_hint = NULL;
5234 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
5236 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5241 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5242 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5245 OPENSSL_free(sc->cert->psk_identity_hint);
5246 if (identity_hint != NULL) {
5247 sc->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5248 if (sc->cert->psk_identity_hint == NULL)
5251 sc->cert->psk_identity_hint = NULL;
5255 const char *SSL_get_psk_identity_hint(const SSL *s)
5257 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5259 if (sc == NULL || sc->session == NULL)
5262 return sc->session->psk_identity_hint;
5265 const char *SSL_get_psk_identity(const SSL *s)
5267 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5269 if (sc == NULL || sc->session == NULL)
5272 return sc->session->psk_identity;
5275 void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
5277 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5282 sc->psk_client_callback = cb;
5285 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
5287 ctx->psk_client_callback = cb;
5290 void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
5292 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5297 sc->psk_server_callback = cb;
5300 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
5302 ctx->psk_server_callback = cb;
5306 void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
5308 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5313 sc->psk_find_session_cb = cb;
5316 void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
5317 SSL_psk_find_session_cb_func cb)
5319 ctx->psk_find_session_cb = cb;
5322 void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
5324 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5329 sc->psk_use_session_cb = cb;
5332 void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
5333 SSL_psk_use_session_cb_func cb)
5335 ctx->psk_use_session_cb = cb;
5338 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
5339 void (*cb) (int write_p, int version,
5340 int content_type, const void *buf,
5341 size_t len, SSL *ssl, void *arg))
5343 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5346 void SSL_set_msg_callback(SSL *ssl,
5347 void (*cb) (int write_p, int version,
5348 int content_type, const void *buf,
5349 size_t len, SSL *ssl, void *arg))
5351 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5354 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
5355 int (*cb) (SSL *ssl,
5359 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5360 (void (*)(void))cb);
5363 void SSL_set_not_resumable_session_callback(SSL *ssl,
5364 int (*cb) (SSL *ssl,
5365 int is_forward_secure))
5367 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5368 (void (*)(void))cb);
5371 void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
5372 size_t (*cb) (SSL *ssl, int type,
5373 size_t len, void *arg))
5375 ctx->record_padding_cb = cb;
5378 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
5380 ctx->record_padding_arg = arg;
5383 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
5385 return ctx->record_padding_arg;
5388 int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
5390 /* block size of 0 or 1 is basically no padding */
5391 if (block_size == 1)
5392 ctx->block_padding = 0;
5393 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5394 ctx->block_padding = block_size;
5400 int SSL_set_record_padding_callback(SSL *ssl,
5401 size_t (*cb) (SSL *ssl, int type,
5402 size_t len, void *arg))
5405 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5410 b = SSL_get_wbio(ssl);
5411 if (b == NULL || !BIO_get_ktls_send(b)) {
5412 sc->rlayer.record_padding_cb = cb;
5418 void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
5420 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5425 sc->rlayer.record_padding_arg = arg;
5428 void *SSL_get_record_padding_callback_arg(const SSL *ssl)
5430 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5435 return sc->rlayer.record_padding_arg;
5438 int SSL_set_block_padding(SSL *ssl, size_t block_size)
5440 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5445 /* block size of 0 or 1 is basically no padding */
5446 if (block_size == 1)
5447 sc->rlayer.block_padding = 0;
5448 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5449 sc->rlayer.block_padding = block_size;
5455 int SSL_set_num_tickets(SSL *s, size_t num_tickets)
5457 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5462 sc->num_tickets = num_tickets;
5467 size_t SSL_get_num_tickets(const SSL *s)
5469 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5474 return sc->num_tickets;
5477 int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
5479 ctx->num_tickets = num_tickets;
5484 size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
5486 return ctx->num_tickets;
5489 /* Retrieve handshake hashes */
5490 int ssl_handshake_hash(SSL_CONNECTION *s,
5491 unsigned char *out, size_t outlen,
5494 EVP_MD_CTX *ctx = NULL;
5495 EVP_MD_CTX *hdgst = s->s3.handshake_dgst;
5496 int hashleni = EVP_MD_CTX_get_size(hdgst);
5499 if (hashleni < 0 || (size_t)hashleni > outlen) {
5500 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5504 ctx = EVP_MD_CTX_new();
5506 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5510 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
5511 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
5512 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5516 *hashlen = hashleni;
5520 EVP_MD_CTX_free(ctx);
5524 int SSL_session_reused(const SSL *s)
5526 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5534 int SSL_is_server(const SSL *s)
5536 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5544 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
5545 void SSL_set_debug(SSL *s, int debug)
5547 /* Old function was do-nothing anyway... */
5553 void SSL_set_security_level(SSL *s, int level)
5555 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5560 sc->cert->sec_level = level;
5563 int SSL_get_security_level(const SSL *s)
5565 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5570 return sc->cert->sec_level;
5573 void SSL_set_security_callback(SSL *s,
5574 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5575 int op, int bits, int nid,
5576 void *other, void *ex))
5578 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5583 sc->cert->sec_cb = cb;
5586 int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
5587 const SSL_CTX *ctx, int op,
5588 int bits, int nid, void *other,
5590 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5595 return sc->cert->sec_cb;
5598 void SSL_set0_security_ex_data(SSL *s, void *ex)
5600 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5605 sc->cert->sec_ex = ex;
5608 void *SSL_get0_security_ex_data(const SSL *s)
5610 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5615 return sc->cert->sec_ex;
5618 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
5620 ctx->cert->sec_level = level;
5623 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
5625 return ctx->cert->sec_level;
5628 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
5629 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5630 int op, int bits, int nid,
5631 void *other, void *ex))
5633 ctx->cert->sec_cb = cb;
5636 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
5642 return ctx->cert->sec_cb;
5645 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
5647 ctx->cert->sec_ex = ex;
5650 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
5652 return ctx->cert->sec_ex;
5655 uint64_t SSL_CTX_get_options(const SSL_CTX *ctx)
5657 return ctx->options;
5660 uint64_t SSL_get_options(const SSL *s)
5662 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5670 uint64_t SSL_CTX_set_options(SSL_CTX *ctx, uint64_t op)
5672 return ctx->options |= op;
5675 uint64_t SSL_set_options(SSL *s, uint64_t op)
5677 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5678 OSSL_PARAM options[2], *opts = options;
5685 *opts++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS,
5687 *opts = OSSL_PARAM_construct_end();
5689 /* Ignore return value */
5690 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
5695 uint64_t SSL_CTX_clear_options(SSL_CTX *ctx, uint64_t op)
5697 return ctx->options &= ~op;
5700 uint64_t SSL_clear_options(SSL *s, uint64_t op)
5702 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5707 return sc->options &= ~op;
5710 STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
5712 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5717 return sc->verified_chain;
5720 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
5722 #ifndef OPENSSL_NO_CT
5725 * Moves SCTs from the |src| stack to the |dst| stack.
5726 * The source of each SCT will be set to |origin|.
5727 * If |dst| points to a NULL pointer, a new stack will be created and owned by
5729 * Returns the number of SCTs moved, or a negative integer if an error occurs.
5731 static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
5732 sct_source_t origin)
5738 *dst = sk_SCT_new_null();
5740 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
5745 while ((sct = sk_SCT_pop(src)) != NULL) {
5746 if (SCT_set_source(sct, origin) != 1)
5749 if (sk_SCT_push(*dst, sct) <= 0)
5757 sk_SCT_push(src, sct); /* Put the SCT back */
5762 * Look for data collected during ServerHello and parse if found.
5763 * Returns the number of SCTs extracted.
5765 static int ct_extract_tls_extension_scts(SSL_CONNECTION *s)
5767 int scts_extracted = 0;
5769 if (s->ext.scts != NULL) {
5770 const unsigned char *p = s->ext.scts;
5771 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
5773 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
5775 SCT_LIST_free(scts);
5778 return scts_extracted;
5782 * Checks for an OCSP response and then attempts to extract any SCTs found if it
5783 * contains an SCT X509 extension. They will be stored in |s->scts|.
5785 * - The number of SCTs extracted, assuming an OCSP response exists.
5786 * - 0 if no OCSP response exists or it contains no SCTs.
5787 * - A negative integer if an error occurs.
5789 static int ct_extract_ocsp_response_scts(SSL_CONNECTION *s)
5791 # ifndef OPENSSL_NO_OCSP
5792 int scts_extracted = 0;
5793 const unsigned char *p;
5794 OCSP_BASICRESP *br = NULL;
5795 OCSP_RESPONSE *rsp = NULL;
5796 STACK_OF(SCT) *scts = NULL;
5799 if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
5802 p = s->ext.ocsp.resp;
5803 rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
5807 br = OCSP_response_get1_basic(rsp);
5811 for (i = 0; i < OCSP_resp_count(br); ++i) {
5812 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
5818 OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
5820 ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
5821 if (scts_extracted < 0)
5825 SCT_LIST_free(scts);
5826 OCSP_BASICRESP_free(br);
5827 OCSP_RESPONSE_free(rsp);
5828 return scts_extracted;
5830 /* Behave as if no OCSP response exists */
5836 * Attempts to extract SCTs from the peer certificate.
5837 * Return the number of SCTs extracted, or a negative integer if an error
5840 static int ct_extract_x509v3_extension_scts(SSL_CONNECTION *s)
5842 int scts_extracted = 0;
5843 X509 *cert = s->session != NULL ? s->session->peer : NULL;
5846 STACK_OF(SCT) *scts =
5847 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
5850 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
5852 SCT_LIST_free(scts);
5855 return scts_extracted;
5859 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
5860 * response (if it exists) and X509v3 extensions in the certificate.
5861 * Returns NULL if an error occurs.
5863 const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
5865 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5870 if (!sc->scts_parsed) {
5871 if (ct_extract_tls_extension_scts(sc) < 0 ||
5872 ct_extract_ocsp_response_scts(sc) < 0 ||
5873 ct_extract_x509v3_extension_scts(sc) < 0)
5876 sc->scts_parsed = 1;
5883 static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx,
5884 const STACK_OF(SCT) *scts, void *unused_arg)
5889 static int ct_strict(const CT_POLICY_EVAL_CTX * ctx,
5890 const STACK_OF(SCT) *scts, void *unused_arg)
5892 int count = scts != NULL ? sk_SCT_num(scts) : 0;
5895 for (i = 0; i < count; ++i) {
5896 SCT *sct = sk_SCT_value(scts, i);
5897 int status = SCT_get_validation_status(sct);
5899 if (status == SCT_VALIDATION_STATUS_VALID)
5902 ERR_raise(ERR_LIB_SSL, SSL_R_NO_VALID_SCTS);
5906 int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
5909 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5915 * Since code exists that uses the custom extension handler for CT, look
5916 * for this and throw an error if they have already registered to use CT.
5918 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
5919 TLSEXT_TYPE_signed_certificate_timestamp))
5921 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
5925 if (callback != NULL) {
5927 * If we are validating CT, then we MUST accept SCTs served via OCSP
5929 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
5933 sc->ct_validation_callback = callback;
5934 sc->ct_validation_callback_arg = arg;
5939 int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
5940 ssl_ct_validation_cb callback, void *arg)
5943 * Since code exists that uses the custom extension handler for CT, look for
5944 * this and throw an error if they have already registered to use CT.
5946 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
5947 TLSEXT_TYPE_signed_certificate_timestamp))
5949 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
5953 ctx->ct_validation_callback = callback;
5954 ctx->ct_validation_callback_arg = arg;
5958 int SSL_ct_is_enabled(const SSL *s)
5960 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5965 return sc->ct_validation_callback != NULL;
5968 int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
5970 return ctx->ct_validation_callback != NULL;
5973 int ssl_validate_ct(SSL_CONNECTION *s)
5976 X509 *cert = s->session != NULL ? s->session->peer : NULL;
5978 SSL_DANE *dane = &s->dane;
5979 CT_POLICY_EVAL_CTX *ctx = NULL;
5980 const STACK_OF(SCT) *scts;
5983 * If no callback is set, the peer is anonymous, or its chain is invalid,
5984 * skip SCT validation - just return success. Applications that continue
5985 * handshakes without certificates, with unverified chains, or pinned leaf
5986 * certificates are outside the scope of the WebPKI and CT.
5988 * The above exclusions notwithstanding the vast majority of peers will
5989 * have rather ordinary certificate chains validated by typical
5990 * applications that perform certificate verification and therefore will
5991 * process SCTs when enabled.
5993 if (s->ct_validation_callback == NULL || cert == NULL ||
5994 s->verify_result != X509_V_OK ||
5995 s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
5999 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
6000 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
6002 if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
6003 switch (dane->mtlsa->usage) {
6004 case DANETLS_USAGE_DANE_TA:
6005 case DANETLS_USAGE_DANE_EE:
6010 ctx = CT_POLICY_EVAL_CTX_new_ex(SSL_CONNECTION_GET_CTX(s)->libctx,
6011 SSL_CONNECTION_GET_CTX(s)->propq);
6013 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CT_LIB);
6017 issuer = sk_X509_value(s->verified_chain, 1);
6018 CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
6019 CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
6020 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx,
6021 SSL_CONNECTION_GET_CTX(s)->ctlog_store);
6022 CT_POLICY_EVAL_CTX_set_time(
6023 ctx, (uint64_t)SSL_SESSION_get_time(s->session) * 1000);
6025 scts = SSL_get0_peer_scts(SSL_CONNECTION_GET_SSL(s));
6028 * This function returns success (> 0) only when all the SCTs are valid, 0
6029 * when some are invalid, and < 0 on various internal errors (out of
6030 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
6031 * reason to abort the handshake, that decision is up to the callback.
6032 * Therefore, we error out only in the unexpected case that the return
6033 * value is negative.
6035 * XXX: One might well argue that the return value of this function is an
6036 * unfortunate design choice. Its job is only to determine the validation
6037 * status of each of the provided SCTs. So long as it correctly separates
6038 * the wheat from the chaff it should return success. Failure in this case
6039 * ought to correspond to an inability to carry out its duties.
6041 if (SCT_LIST_validate(scts, ctx) < 0) {
6042 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_SCT_VERIFICATION_FAILED);
6046 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
6048 ret = 0; /* This function returns 0 on failure */
6050 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_CALLBACK_FAILED);
6053 CT_POLICY_EVAL_CTX_free(ctx);
6055 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
6056 * failure return code here. Also the application may wish the complete
6057 * the handshake, and then disconnect cleanly at a higher layer, after
6058 * checking the verification status of the completed connection.
6060 * We therefore force a certificate verification failure which will be
6061 * visible via SSL_get_verify_result() and cached as part of any resumed
6064 * Note: the permissive callback is for information gathering only, always
6065 * returns success, and does not affect verification status. Only the
6066 * strict callback or a custom application-specified callback can trigger
6067 * connection failure or record a verification error.
6070 s->verify_result = X509_V_ERR_NO_VALID_SCTS;
6074 int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
6076 switch (validation_mode) {
6078 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6080 case SSL_CT_VALIDATION_PERMISSIVE:
6081 return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
6082 case SSL_CT_VALIDATION_STRICT:
6083 return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
6087 int SSL_enable_ct(SSL *s, int validation_mode)
6089 switch (validation_mode) {
6091 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6093 case SSL_CT_VALIDATION_PERMISSIVE:
6094 return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
6095 case SSL_CT_VALIDATION_STRICT:
6096 return SSL_set_ct_validation_callback(s, ct_strict, NULL);
6100 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
6102 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
6105 int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
6107 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
6110 void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs)
6112 CTLOG_STORE_free(ctx->ctlog_store);
6113 ctx->ctlog_store = logs;
6116 const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
6118 return ctx->ctlog_store;
6121 #endif /* OPENSSL_NO_CT */
6123 void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
6126 c->client_hello_cb = cb;
6127 c->client_hello_cb_arg = arg;
6130 int SSL_client_hello_isv2(SSL *s)
6132 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6137 if (sc->clienthello == NULL)
6139 return sc->clienthello->isv2;
6142 unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
6144 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6149 if (sc->clienthello == NULL)
6151 return sc->clienthello->legacy_version;
6154 size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out)
6156 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6161 if (sc->clienthello == NULL)
6164 *out = sc->clienthello->random;
6165 return SSL3_RANDOM_SIZE;
6168 size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
6170 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6175 if (sc->clienthello == NULL)
6178 *out = sc->clienthello->session_id;
6179 return sc->clienthello->session_id_len;
6182 size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
6184 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6189 if (sc->clienthello == NULL)
6192 *out = PACKET_data(&sc->clienthello->ciphersuites);
6193 return PACKET_remaining(&sc->clienthello->ciphersuites);
6196 size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
6198 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6203 if (sc->clienthello == NULL)
6206 *out = sc->clienthello->compressions;
6207 return sc->clienthello->compressions_len;
6210 int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
6215 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6220 if (sc->clienthello == NULL || out == NULL || outlen == NULL)
6222 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6223 ext = sc->clienthello->pre_proc_exts + i;
6232 if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL)
6234 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6235 ext = sc->clienthello->pre_proc_exts + i;
6237 if (ext->received_order >= num)
6239 present[ext->received_order] = ext->type;
6246 OPENSSL_free(present);
6250 int SSL_client_hello_get_extension_order(SSL *s, uint16_t *exts, size_t *num_exts)
6254 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6259 if (sc->clienthello == NULL || num_exts == NULL)
6261 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6262 ext = sc->clienthello->pre_proc_exts + i;
6274 if (*num_exts < num)
6276 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6277 ext = sc->clienthello->pre_proc_exts + i;
6279 if (ext->received_order >= num)
6281 exts[ext->received_order] = ext->type;
6288 int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
6293 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6298 if (sc->clienthello == NULL)
6300 for (i = 0; i < sc->clienthello->pre_proc_exts_len; ++i) {
6301 r = sc->clienthello->pre_proc_exts + i;
6302 if (r->present && r->type == type) {
6304 *out = PACKET_data(&r->data);
6306 *outlen = PACKET_remaining(&r->data);
6313 int SSL_free_buffers(SSL *ssl)
6316 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6323 return rl->rrlmethod->free_buffers(rl->rrl)
6324 && rl->wrlmethod->free_buffers(rl->wrl);
6327 int SSL_alloc_buffers(SSL *ssl)
6330 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6337 return rl->rrlmethod->alloc_buffers(rl->rrl)
6338 && rl->wrlmethod->alloc_buffers(rl->wrl);
6341 void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
6343 ctx->keylog_callback = cb;
6346 SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
6348 return ctx->keylog_callback;
6351 static int nss_keylog_int(const char *prefix,
6353 const uint8_t *parameter_1,
6354 size_t parameter_1_len,
6355 const uint8_t *parameter_2,
6356 size_t parameter_2_len)
6359 char *cursor = NULL;
6363 SSL_CTX *sctx = SSL_CONNECTION_GET_CTX(sc);
6365 if (sctx->keylog_callback == NULL)
6369 * Our output buffer will contain the following strings, rendered with
6370 * space characters in between, terminated by a NULL character: first the
6371 * prefix, then the first parameter, then the second parameter. The
6372 * meaning of each parameter depends on the specific key material being
6373 * logged. Note that the first and second parameters are encoded in
6374 * hexadecimal, so we need a buffer that is twice their lengths.
6376 prefix_len = strlen(prefix);
6377 out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
6378 if ((out = cursor = OPENSSL_malloc(out_len)) == NULL)
6381 strcpy(cursor, prefix);
6382 cursor += prefix_len;
6385 for (i = 0; i < parameter_1_len; i++) {
6386 sprintf(cursor, "%02x", parameter_1[i]);
6391 for (i = 0; i < parameter_2_len; i++) {
6392 sprintf(cursor, "%02x", parameter_2[i]);
6397 sctx->keylog_callback(SSL_CONNECTION_GET_SSL(sc), (const char *)out);
6398 OPENSSL_clear_free(out, out_len);
6403 int ssl_log_rsa_client_key_exchange(SSL_CONNECTION *sc,
6404 const uint8_t *encrypted_premaster,
6405 size_t encrypted_premaster_len,
6406 const uint8_t *premaster,
6407 size_t premaster_len)
6409 if (encrypted_premaster_len < 8) {
6410 SSLfatal(sc, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6414 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
6415 return nss_keylog_int("RSA",
6417 encrypted_premaster,
6423 int ssl_log_secret(SSL_CONNECTION *sc,
6425 const uint8_t *secret,
6428 return nss_keylog_int(label,
6430 sc->s3.client_random,
6436 #define SSLV2_CIPHER_LEN 3
6438 int ssl_cache_cipherlist(SSL_CONNECTION *s, PACKET *cipher_suites, int sslv2format)
6442 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6444 if (PACKET_remaining(cipher_suites) == 0) {
6445 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6449 if (PACKET_remaining(cipher_suites) % n != 0) {
6450 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6454 OPENSSL_free(s->s3.tmp.ciphers_raw);
6455 s->s3.tmp.ciphers_raw = NULL;
6456 s->s3.tmp.ciphers_rawlen = 0;
6459 size_t numciphers = PACKET_remaining(cipher_suites) / n;
6460 PACKET sslv2ciphers = *cipher_suites;
6461 unsigned int leadbyte;
6465 * We store the raw ciphers list in SSLv3+ format so we need to do some
6466 * preprocessing to convert the list first. If there are any SSLv2 only
6467 * ciphersuites with a non-zero leading byte then we are going to
6468 * slightly over allocate because we won't store those. But that isn't a
6471 raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
6472 s->s3.tmp.ciphers_raw = raw;
6474 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6477 for (s->s3.tmp.ciphers_rawlen = 0;
6478 PACKET_remaining(&sslv2ciphers) > 0;
6479 raw += TLS_CIPHER_LEN) {
6480 if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
6482 && !PACKET_copy_bytes(&sslv2ciphers, raw,
6485 && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
6486 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_PACKET);
6487 OPENSSL_free(s->s3.tmp.ciphers_raw);
6488 s->s3.tmp.ciphers_raw = NULL;
6489 s->s3.tmp.ciphers_rawlen = 0;
6493 s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN;
6495 } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw,
6496 &s->s3.tmp.ciphers_rawlen)) {
6497 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6503 int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
6504 int isv2format, STACK_OF(SSL_CIPHER) **sk,
6505 STACK_OF(SSL_CIPHER) **scsvs)
6508 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6513 if (!PACKET_buf_init(&pkt, bytes, len))
6515 return ossl_bytes_to_cipher_list(sc, &pkt, sk, scsvs, isv2format, 0);
6518 int ossl_bytes_to_cipher_list(SSL_CONNECTION *s, PACKET *cipher_suites,
6519 STACK_OF(SSL_CIPHER) **skp,
6520 STACK_OF(SSL_CIPHER) **scsvs_out,
6521 int sslv2format, int fatal)
6523 const SSL_CIPHER *c;
6524 STACK_OF(SSL_CIPHER) *sk = NULL;
6525 STACK_OF(SSL_CIPHER) *scsvs = NULL;
6527 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
6528 unsigned char cipher[SSLV2_CIPHER_LEN];
6530 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6532 if (PACKET_remaining(cipher_suites) == 0) {
6534 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6536 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHERS_SPECIFIED);
6540 if (PACKET_remaining(cipher_suites) % n != 0) {
6542 SSLfatal(s, SSL_AD_DECODE_ERROR,
6543 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6545 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6549 sk = sk_SSL_CIPHER_new_null();
6550 scsvs = sk_SSL_CIPHER_new_null();
6551 if (sk == NULL || scsvs == NULL) {
6553 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6555 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6559 while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
6561 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
6562 * first byte set to zero, while true SSLv2 ciphers have a non-zero
6563 * first byte. We don't support any true SSLv2 ciphers, so skip them.
6565 if (sslv2format && cipher[0] != '\0')
6568 /* For SSLv2-compat, ignore leading 0-byte. */
6569 c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
6571 if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
6572 (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
6574 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6576 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6581 if (PACKET_remaining(cipher_suites) > 0) {
6583 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_LENGTH);
6585 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
6592 sk_SSL_CIPHER_free(sk);
6593 if (scsvs_out != NULL)
6596 sk_SSL_CIPHER_free(scsvs);
6599 sk_SSL_CIPHER_free(sk);
6600 sk_SSL_CIPHER_free(scsvs);
6604 int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
6606 ctx->max_early_data = max_early_data;
6611 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
6613 return ctx->max_early_data;
6616 int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
6618 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6623 sc->max_early_data = max_early_data;
6628 uint32_t SSL_get_max_early_data(const SSL *s)
6630 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6635 return sc->max_early_data;
6638 int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
6640 ctx->recv_max_early_data = recv_max_early_data;
6645 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
6647 return ctx->recv_max_early_data;
6650 int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
6652 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6657 sc->recv_max_early_data = recv_max_early_data;
6662 uint32_t SSL_get_recv_max_early_data(const SSL *s)
6664 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6669 return sc->recv_max_early_data;
6672 __owur unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION *sc)
6674 /* Return any active Max Fragment Len extension */
6675 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session))
6676 return GET_MAX_FRAGMENT_LENGTH(sc->session);
6678 /* return current SSL connection setting */
6679 return sc->max_send_fragment;
6682 __owur unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION *sc)
6684 /* Return a value regarding an active Max Fragment Len extension */
6685 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session)
6686 && sc->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(sc->session))
6687 return GET_MAX_FRAGMENT_LENGTH(sc->session);
6689 /* else limit |split_send_fragment| to current |max_send_fragment| */
6690 if (sc->split_send_fragment > sc->max_send_fragment)
6691 return sc->max_send_fragment;
6693 /* return current SSL connection setting */
6694 return sc->split_send_fragment;
6697 int SSL_stateless(SSL *s)
6700 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6702 /* TODO(QUIC): This will need further work. */
6706 /* Ensure there is no state left over from a previous invocation */
6712 sc->s3.flags |= TLS1_FLAGS_STATELESS;
6713 ret = SSL_accept(s);
6714 sc->s3.flags &= ~TLS1_FLAGS_STATELESS;
6716 if (ret > 0 && sc->ext.cookieok)
6719 if (sc->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(sc))
6725 void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
6727 ctx->pha_enabled = val;
6730 void SSL_set_post_handshake_auth(SSL *ssl, int val)
6732 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6737 sc->pha_enabled = val;
6740 int SSL_verify_client_post_handshake(SSL *ssl)
6742 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6747 if (!SSL_CONNECTION_IS_TLS13(sc)) {
6748 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
6752 ERR_raise(ERR_LIB_SSL, SSL_R_NOT_SERVER);
6756 if (!SSL_is_init_finished(ssl)) {
6757 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
6761 switch (sc->post_handshake_auth) {
6763 ERR_raise(ERR_LIB_SSL, SSL_R_EXTENSION_NOT_RECEIVED);
6766 case SSL_PHA_EXT_SENT:
6767 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
6769 case SSL_PHA_EXT_RECEIVED:
6771 case SSL_PHA_REQUEST_PENDING:
6772 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_PENDING);
6774 case SSL_PHA_REQUESTED:
6775 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_SENT);
6779 sc->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
6781 /* checks verify_mode and algorithm_auth */
6782 if (!send_certificate_request(sc)) {
6783 sc->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
6784 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CONFIG);
6788 ossl_statem_set_in_init(sc, 1);
6792 int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
6793 SSL_CTX_generate_session_ticket_fn gen_cb,
6794 SSL_CTX_decrypt_session_ticket_fn dec_cb,
6797 ctx->generate_ticket_cb = gen_cb;
6798 ctx->decrypt_ticket_cb = dec_cb;
6799 ctx->ticket_cb_data = arg;
6803 void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
6804 SSL_allow_early_data_cb_fn cb,
6807 ctx->allow_early_data_cb = cb;
6808 ctx->allow_early_data_cb_data = arg;
6811 void SSL_set_allow_early_data_cb(SSL *s,
6812 SSL_allow_early_data_cb_fn cb,
6815 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6820 sc->allow_early_data_cb = cb;
6821 sc->allow_early_data_cb_data = arg;
6824 const EVP_CIPHER *ssl_evp_cipher_fetch(OSSL_LIB_CTX *libctx,
6826 const char *properties)
6828 const EVP_CIPHER *ciph;
6830 ciph = tls_get_cipher_from_engine(nid);
6835 * If there is no engine cipher then we do an explicit fetch. This may fail
6836 * and that could be ok
6839 ciph = EVP_CIPHER_fetch(libctx, OBJ_nid2sn(nid), properties);
6845 int ssl_evp_cipher_up_ref(const EVP_CIPHER *cipher)
6847 /* Don't up-ref an implicit EVP_CIPHER */
6848 if (EVP_CIPHER_get0_provider(cipher) == NULL)
6852 * The cipher was explicitly fetched and therefore it is safe to cast
6855 return EVP_CIPHER_up_ref((EVP_CIPHER *)cipher);
6858 void ssl_evp_cipher_free(const EVP_CIPHER *cipher)
6863 if (EVP_CIPHER_get0_provider(cipher) != NULL) {
6865 * The cipher was explicitly fetched and therefore it is safe to cast
6868 EVP_CIPHER_free((EVP_CIPHER *)cipher);
6872 const EVP_MD *ssl_evp_md_fetch(OSSL_LIB_CTX *libctx,
6874 const char *properties)
6878 md = tls_get_digest_from_engine(nid);
6882 /* Otherwise we do an explicit fetch */
6884 md = EVP_MD_fetch(libctx, OBJ_nid2sn(nid), properties);
6889 int ssl_evp_md_up_ref(const EVP_MD *md)
6891 /* Don't up-ref an implicit EVP_MD */
6892 if (EVP_MD_get0_provider(md) == NULL)
6896 * The digest was explicitly fetched and therefore it is safe to cast
6899 return EVP_MD_up_ref((EVP_MD *)md);
6902 void ssl_evp_md_free(const EVP_MD *md)
6907 if (EVP_MD_get0_provider(md) != NULL) {
6909 * The digest was explicitly fetched and therefore it is safe to cast
6912 EVP_MD_free((EVP_MD *)md);
6916 int SSL_set0_tmp_dh_pkey(SSL *s, EVP_PKEY *dhpkey)
6918 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6923 if (!ssl_security(sc, SSL_SECOP_TMP_DH,
6924 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
6925 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
6928 EVP_PKEY_free(sc->cert->dh_tmp);
6929 sc->cert->dh_tmp = dhpkey;
6933 int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX *ctx, EVP_PKEY *dhpkey)
6935 if (!ssl_ctx_security(ctx, SSL_SECOP_TMP_DH,
6936 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
6937 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
6940 EVP_PKEY_free(ctx->cert->dh_tmp);
6941 ctx->cert->dh_tmp = dhpkey;