2 * Copyright 1995-2024 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 * Copyright 2005 Nokia. All rights reserved.
6 * Licensed under the Apache License 2.0 (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
13 #include "ssl_local.h"
14 #include "internal/e_os.h"
15 #include <openssl/objects.h>
16 #include <openssl/x509v3.h>
17 #include <openssl/rand.h>
18 #include <openssl/ocsp.h>
19 #include <openssl/dh.h>
20 #include <openssl/engine.h>
21 #include <openssl/async.h>
22 #include <openssl/ct.h>
23 #include <openssl/trace.h>
24 #include <openssl/core_names.h>
25 #include "internal/cryptlib.h"
26 #include "internal/nelem.h"
27 #include "internal/refcount.h"
28 #include "internal/ktls.h"
29 #include "quic/quic_local.h"
31 static int ssl_undefined_function_3(SSL_CONNECTION *sc, unsigned char *r,
32 unsigned char *s, size_t t, size_t *u)
34 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
37 static int ssl_undefined_function_4(SSL_CONNECTION *sc, int r)
39 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
42 static size_t ssl_undefined_function_5(SSL_CONNECTION *sc, const char *r,
43 size_t s, unsigned char *t)
45 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
48 static int ssl_undefined_function_6(int r)
50 return ssl_undefined_function(NULL);
53 static int ssl_undefined_function_7(SSL_CONNECTION *sc, unsigned char *r,
54 size_t s, const char *t, size_t u,
55 const unsigned char *v, size_t w, int x)
57 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
60 static int ssl_undefined_function_8(SSL_CONNECTION *sc)
62 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
65 const SSL3_ENC_METHOD ssl3_undef_enc_method = {
66 ssl_undefined_function_8,
67 ssl_undefined_function_3,
68 ssl_undefined_function_4,
69 ssl_undefined_function_5,
70 NULL, /* client_finished_label */
71 0, /* client_finished_label_len */
72 NULL, /* server_finished_label */
73 0, /* server_finished_label_len */
74 ssl_undefined_function_6,
75 ssl_undefined_function_7,
78 struct ssl_async_args {
82 enum { READFUNC, WRITEFUNC, OTHERFUNC } type;
84 int (*func_read) (SSL *, void *, size_t, size_t *);
85 int (*func_write) (SSL *, const void *, size_t, size_t *);
86 int (*func_other) (SSL *);
96 DANETLS_MATCHING_FULL, 0, NID_undef
99 DANETLS_MATCHING_2256, 1, NID_sha256
102 DANETLS_MATCHING_2512, 2, NID_sha512
106 static int dane_ctx_enable(struct dane_ctx_st *dctx)
108 const EVP_MD **mdevp;
110 uint8_t mdmax = DANETLS_MATCHING_LAST;
111 int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */
114 if (dctx->mdevp != NULL)
117 mdevp = OPENSSL_zalloc(n * sizeof(*mdevp));
118 mdord = OPENSSL_zalloc(n * sizeof(*mdord));
120 if (mdord == NULL || mdevp == NULL) {
126 /* Install default entries */
127 for (i = 0; i < OSSL_NELEM(dane_mds); ++i) {
130 if (dane_mds[i].nid == NID_undef ||
131 (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL)
133 mdevp[dane_mds[i].mtype] = md;
134 mdord[dane_mds[i].mtype] = dane_mds[i].ord;
144 static void dane_ctx_final(struct dane_ctx_st *dctx)
146 OPENSSL_free(dctx->mdevp);
149 OPENSSL_free(dctx->mdord);
154 static void tlsa_free(danetls_record *t)
158 OPENSSL_free(t->data);
159 EVP_PKEY_free(t->spki);
163 static void dane_final(SSL_DANE *dane)
165 sk_danetls_record_pop_free(dane->trecs, tlsa_free);
168 OSSL_STACK_OF_X509_free(dane->certs);
171 X509_free(dane->mcert);
179 * dane_copy - Copy dane configuration, sans verification state.
181 static int ssl_dane_dup(SSL_CONNECTION *to, SSL_CONNECTION *from)
186 if (!DANETLS_ENABLED(&from->dane))
189 num = sk_danetls_record_num(from->dane.trecs);
190 dane_final(&to->dane);
191 to->dane.flags = from->dane.flags;
192 to->dane.dctx = &SSL_CONNECTION_GET_CTX(to)->dane;
193 to->dane.trecs = sk_danetls_record_new_reserve(NULL, num);
195 if (to->dane.trecs == NULL) {
196 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
200 for (i = 0; i < num; ++i) {
201 danetls_record *t = sk_danetls_record_value(from->dane.trecs, i);
203 if (SSL_dane_tlsa_add(SSL_CONNECTION_GET_SSL(to), t->usage,
204 t->selector, t->mtype, t->data, t->dlen) <= 0)
210 static int dane_mtype_set(struct dane_ctx_st *dctx,
211 const EVP_MD *md, uint8_t mtype, uint8_t ord)
215 if (mtype == DANETLS_MATCHING_FULL && md != NULL) {
216 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL);
220 if (mtype > dctx->mdmax) {
221 const EVP_MD **mdevp;
223 int n = ((int)mtype) + 1;
225 mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp));
230 mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord));
235 /* Zero-fill any gaps */
236 for (i = dctx->mdmax + 1; i < mtype; ++i) {
244 dctx->mdevp[mtype] = md;
245 /* Coerce ordinal of disabled matching types to 0 */
246 dctx->mdord[mtype] = (md == NULL) ? 0 : ord;
251 static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype)
253 if (mtype > dane->dctx->mdmax)
255 return dane->dctx->mdevp[mtype];
258 static int dane_tlsa_add(SSL_DANE *dane,
261 uint8_t mtype, const unsigned char *data, size_t dlen)
264 const EVP_MD *md = NULL;
265 int ilen = (int)dlen;
270 if (dane->trecs == NULL) {
271 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_NOT_ENABLED);
275 if (ilen < 0 || dlen != (size_t)ilen) {
276 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DATA_LENGTH);
280 if (usage > DANETLS_USAGE_LAST) {
281 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE);
285 if (selector > DANETLS_SELECTOR_LAST) {
286 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_SELECTOR);
290 if (mtype != DANETLS_MATCHING_FULL) {
291 md = tlsa_md_get(dane, mtype);
293 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE);
299 mdsize = EVP_MD_get_size(md);
300 if (mdsize <= 0 || dlen != (size_t)mdsize) {
301 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH);
306 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_NULL_DATA);
310 if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL)
314 t->selector = selector;
316 t->data = OPENSSL_malloc(dlen);
317 if (t->data == NULL) {
321 memcpy(t->data, data, dlen);
324 /* Validate and cache full certificate or public key */
325 if (mtype == DANETLS_MATCHING_FULL) {
326 const unsigned char *p = data;
328 EVP_PKEY *pkey = NULL;
331 case DANETLS_SELECTOR_CERT:
332 if (!d2i_X509(&cert, &p, ilen) || p < data ||
333 dlen != (size_t)(p - data)) {
336 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
339 if (X509_get0_pubkey(cert) == NULL) {
342 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
346 if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
348 * The Full(0) certificate decodes to a seemingly valid X.509
349 * object with a plausible key, so the TLSA record is well
350 * formed. However, we don't actually need the certificate for
351 * usages PKIX-EE(1) or DANE-EE(3), because at least the EE
352 * certificate is always presented by the peer. We discard the
353 * certificate, and just use the TLSA data as an opaque blob
354 * for matching the raw presented DER octets.
356 * DO NOT FREE `t` here, it will be added to the TLSA record
364 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
365 * records that contain full certificates of trust-anchors that are
366 * not present in the wire chain. For usage PKIX-TA(0), we augment
367 * the chain with untrusted Full(0) certificates from DNS, in case
368 * they are missing from the chain.
370 if ((dane->certs == NULL &&
371 (dane->certs = sk_X509_new_null()) == NULL) ||
372 !sk_X509_push(dane->certs, cert)) {
373 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
380 case DANETLS_SELECTOR_SPKI:
381 if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data ||
382 dlen != (size_t)(p - data)) {
385 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
390 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
391 * records that contain full bare keys of trust-anchors that are
392 * not present in the wire chain.
394 if (usage == DANETLS_USAGE_DANE_TA)
403 * Find the right insertion point for the new record.
405 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
406 * they can be processed first, as they require no chain building, and no
407 * expiration or hostname checks. Because DANE-EE(3) is numerically
408 * largest, this is accomplished via descending sort by "usage".
410 * We also sort in descending order by matching ordinal to simplify
411 * the implementation of digest agility in the verification code.
413 * The choice of order for the selector is not significant, so we
414 * use the same descending order for consistency.
416 num = sk_danetls_record_num(dane->trecs);
417 for (i = 0; i < num; ++i) {
418 danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
420 if (rec->usage > usage)
422 if (rec->usage < usage)
424 if (rec->selector > selector)
426 if (rec->selector < selector)
428 if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
433 if (!sk_danetls_record_insert(dane->trecs, t, i)) {
435 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
438 dane->umask |= DANETLS_USAGE_BIT(usage);
444 * Return 0 if there is only one version configured and it was disabled
445 * at configure time. Return 1 otherwise.
447 static int ssl_check_allowed_versions(int min_version, int max_version)
449 int minisdtls = 0, maxisdtls = 0;
451 /* Figure out if we're doing DTLS versions or TLS versions */
452 if (min_version == DTLS1_BAD_VER
453 || min_version >> 8 == DTLS1_VERSION_MAJOR)
455 if (max_version == DTLS1_BAD_VER
456 || max_version >> 8 == DTLS1_VERSION_MAJOR)
458 /* A wildcard version of 0 could be DTLS or TLS. */
459 if ((minisdtls && !maxisdtls && max_version != 0)
460 || (maxisdtls && !minisdtls && min_version != 0)) {
461 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
465 if (minisdtls || maxisdtls) {
466 /* Do DTLS version checks. */
467 if (min_version == 0)
468 /* Ignore DTLS1_BAD_VER */
469 min_version = DTLS1_VERSION;
470 if (max_version == 0)
471 max_version = DTLS1_2_VERSION;
472 #ifdef OPENSSL_NO_DTLS1_2
473 if (max_version == DTLS1_2_VERSION)
474 max_version = DTLS1_VERSION;
476 #ifdef OPENSSL_NO_DTLS1
477 if (min_version == DTLS1_VERSION)
478 min_version = DTLS1_2_VERSION;
480 /* Done massaging versions; do the check. */
482 #ifdef OPENSSL_NO_DTLS1
483 || (DTLS_VERSION_GE(min_version, DTLS1_VERSION)
484 && DTLS_VERSION_GE(DTLS1_VERSION, max_version))
486 #ifdef OPENSSL_NO_DTLS1_2
487 || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION)
488 && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version))
493 /* Regular TLS version checks. */
494 if (min_version == 0)
495 min_version = SSL3_VERSION;
496 if (max_version == 0)
497 max_version = TLS1_3_VERSION;
498 #ifdef OPENSSL_NO_TLS1_3
499 if (max_version == TLS1_3_VERSION)
500 max_version = TLS1_2_VERSION;
502 #ifdef OPENSSL_NO_TLS1_2
503 if (max_version == TLS1_2_VERSION)
504 max_version = TLS1_1_VERSION;
506 #ifdef OPENSSL_NO_TLS1_1
507 if (max_version == TLS1_1_VERSION)
508 max_version = TLS1_VERSION;
510 #ifdef OPENSSL_NO_TLS1
511 if (max_version == TLS1_VERSION)
512 max_version = SSL3_VERSION;
514 #ifdef OPENSSL_NO_SSL3
515 if (min_version == SSL3_VERSION)
516 min_version = TLS1_VERSION;
518 #ifdef OPENSSL_NO_TLS1
519 if (min_version == TLS1_VERSION)
520 min_version = TLS1_1_VERSION;
522 #ifdef OPENSSL_NO_TLS1_1
523 if (min_version == TLS1_1_VERSION)
524 min_version = TLS1_2_VERSION;
526 #ifdef OPENSSL_NO_TLS1_2
527 if (min_version == TLS1_2_VERSION)
528 min_version = TLS1_3_VERSION;
530 /* Done massaging versions; do the check. */
532 #ifdef OPENSSL_NO_SSL3
533 || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version)
535 #ifdef OPENSSL_NO_TLS1
536 || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version)
538 #ifdef OPENSSL_NO_TLS1_1
539 || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version)
541 #ifdef OPENSSL_NO_TLS1_2
542 || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version)
544 #ifdef OPENSSL_NO_TLS1_3
545 || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version)
553 #if defined(__TANDEM) && defined(OPENSSL_VPROC)
555 * Define a VPROC function for HP NonStop build ssl library.
556 * This is used by platform version identification tools.
557 * Do not inline this procedure or make it static.
559 # define OPENSSL_VPROC_STRING_(x) x##_SSL
560 # define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
561 # define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
562 void OPENSSL_VPROC_FUNC(void) {}
565 int SSL_clear(SSL *s)
567 if (s->method == NULL) {
568 ERR_raise(ERR_LIB_SSL, SSL_R_NO_METHOD_SPECIFIED);
572 return s->method->ssl_reset(s);
575 int ossl_ssl_connection_reset(SSL *s)
577 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
582 if (ssl_clear_bad_session(sc)) {
583 SSL_SESSION_free(sc->session);
586 SSL_SESSION_free(sc->psksession);
587 sc->psksession = NULL;
588 OPENSSL_free(sc->psksession_id);
589 sc->psksession_id = NULL;
590 sc->psksession_id_len = 0;
591 sc->hello_retry_request = SSL_HRR_NONE;
592 sc->sent_tickets = 0;
598 if (sc->renegotiate) {
599 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
603 ossl_statem_clear(sc);
605 sc->version = s->method->version;
606 sc->client_version = sc->version;
607 sc->rwstate = SSL_NOTHING;
609 BUF_MEM_free(sc->init_buf);
611 sc->first_packet = 0;
613 sc->key_update = SSL_KEY_UPDATE_NONE;
614 memset(sc->ext.compress_certificate_from_peer, 0,
615 sizeof(sc->ext.compress_certificate_from_peer));
616 sc->ext.compress_certificate_sent = 0;
618 EVP_MD_CTX_free(sc->pha_dgst);
621 /* Reset DANE verification result state */
624 X509_free(sc->dane.mcert);
625 sc->dane.mcert = NULL;
626 sc->dane.mtlsa = NULL;
628 /* Clear the verification result peername */
629 X509_VERIFY_PARAM_move_peername(sc->param, NULL);
631 /* Clear any shared connection state */
632 OPENSSL_free(sc->shared_sigalgs);
633 sc->shared_sigalgs = NULL;
634 sc->shared_sigalgslen = 0;
637 * Check to see if we were changed into a different method, if so, revert
640 if (s->method != s->defltmeth) {
641 s->method->ssl_deinit(s);
642 s->method = s->defltmeth;
643 if (!s->method->ssl_init(s))
646 if (!s->method->ssl_clear(s))
650 if (!RECORD_LAYER_reset(&sc->rlayer))
656 #ifndef OPENSSL_NO_DEPRECATED_3_0
657 /** Used to change an SSL_CTXs default SSL method type */
658 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
660 STACK_OF(SSL_CIPHER) *sk;
662 if (IS_QUIC_CTX(ctx)) {
663 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
669 if (!SSL_CTX_set_ciphersuites(ctx, OSSL_default_ciphersuites())) {
670 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
673 sk = ssl_create_cipher_list(ctx,
674 ctx->tls13_ciphersuites,
676 &(ctx->cipher_list_by_id),
677 OSSL_default_cipher_list(), ctx->cert);
678 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
679 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
686 SSL *SSL_new(SSL_CTX *ctx)
689 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_CTX);
692 if (ctx->method == NULL) {
693 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
696 return ctx->method->ssl_new(ctx);
699 int ossl_ssl_init(SSL *ssl, SSL_CTX *ctx, const SSL_METHOD *method, int type)
703 ssl->lock = CRYPTO_THREAD_lock_new();
704 if (ssl->lock == NULL)
707 if (!CRYPTO_NEW_REF(&ssl->references, 1)) {
708 CRYPTO_THREAD_lock_free(ssl->lock);
712 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, ssl, &ssl->ex_data)) {
713 CRYPTO_THREAD_lock_free(ssl->lock);
714 CRYPTO_FREE_REF(&ssl->references);
722 ssl->defltmeth = ssl->method = method;
727 SSL *ossl_ssl_connection_new_int(SSL_CTX *ctx, const SSL_METHOD *method)
732 s = OPENSSL_zalloc(sizeof(*s));
737 if (!ossl_ssl_init(ssl, ctx, method, SSL_TYPE_SSL_CONNECTION)) {
744 RECORD_LAYER_init(&s->rlayer, s);
746 s->options = ctx->options;
748 s->dane.flags = ctx->dane.flags;
749 if (method->version == ctx->method->version) {
750 s->min_proto_version = ctx->min_proto_version;
751 s->max_proto_version = ctx->max_proto_version;
755 s->max_cert_list = ctx->max_cert_list;
756 s->max_early_data = ctx->max_early_data;
757 s->recv_max_early_data = ctx->recv_max_early_data;
759 s->num_tickets = ctx->num_tickets;
760 s->pha_enabled = ctx->pha_enabled;
762 /* Shallow copy of the ciphersuites stack */
763 s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
764 if (s->tls13_ciphersuites == NULL)
768 * Earlier library versions used to copy the pointer to the CERT, not
769 * its contents; only when setting new parameters for the per-SSL
770 * copy, ssl_cert_new would be called (and the direct reference to
771 * the per-SSL_CTX settings would be lost, but those still were
772 * indirectly accessed for various purposes, and for that reason they
773 * used to be known as s->ctx->default_cert). Now we don't look at the
774 * SSL_CTX's CERT after having duplicated it once.
776 s->cert = ssl_cert_dup(ctx->cert);
780 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
781 s->msg_callback = ctx->msg_callback;
782 s->msg_callback_arg = ctx->msg_callback_arg;
783 s->verify_mode = ctx->verify_mode;
784 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
785 s->rlayer.record_padding_cb = ctx->record_padding_cb;
786 s->rlayer.record_padding_arg = ctx->record_padding_arg;
787 s->rlayer.block_padding = ctx->block_padding;
788 s->sid_ctx_length = ctx->sid_ctx_length;
789 if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
791 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
792 s->verify_callback = ctx->default_verify_callback;
793 s->generate_session_id = ctx->generate_session_id;
795 s->param = X509_VERIFY_PARAM_new();
796 if (s->param == NULL)
798 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
799 s->quiet_shutdown = IS_QUIC_CTX(ctx) ? 0 : ctx->quiet_shutdown;
801 if (!IS_QUIC_CTX(ctx))
802 s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
804 s->max_send_fragment = ctx->max_send_fragment;
805 s->split_send_fragment = ctx->split_send_fragment;
806 s->max_pipelines = ctx->max_pipelines;
807 s->rlayer.default_read_buf_len = ctx->default_read_buf_len;
810 s->ext.debug_arg = NULL;
811 s->ext.ticket_expected = 0;
812 s->ext.status_type = ctx->ext.status_type;
813 s->ext.status_expected = 0;
814 s->ext.ocsp.ids = NULL;
815 s->ext.ocsp.exts = NULL;
816 s->ext.ocsp.resp = NULL;
817 s->ext.ocsp.resp_len = 0;
819 s->session_ctx = ctx;
820 if (ctx->ext.ecpointformats) {
821 s->ext.ecpointformats =
822 OPENSSL_memdup(ctx->ext.ecpointformats,
823 ctx->ext.ecpointformats_len);
824 if (!s->ext.ecpointformats) {
825 s->ext.ecpointformats_len = 0;
828 s->ext.ecpointformats_len =
829 ctx->ext.ecpointformats_len;
831 if (ctx->ext.supportedgroups) {
832 s->ext.supportedgroups =
833 OPENSSL_memdup(ctx->ext.supportedgroups,
834 ctx->ext.supportedgroups_len
835 * sizeof(*ctx->ext.supportedgroups));
836 if (!s->ext.supportedgroups) {
837 s->ext.supportedgroups_len = 0;
840 s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
843 #ifndef OPENSSL_NO_NEXTPROTONEG
847 if (ctx->ext.alpn != NULL) {
848 s->ext.alpn = OPENSSL_malloc(ctx->ext.alpn_len);
849 if (s->ext.alpn == NULL) {
853 memcpy(s->ext.alpn, ctx->ext.alpn, ctx->ext.alpn_len);
854 s->ext.alpn_len = ctx->ext.alpn_len;
857 s->verified_chain = NULL;
858 s->verify_result = X509_V_OK;
860 s->default_passwd_callback = ctx->default_passwd_callback;
861 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
863 s->key_update = SSL_KEY_UPDATE_NONE;
865 if (!IS_QUIC_CTX(ctx)) {
866 s->allow_early_data_cb = ctx->allow_early_data_cb;
867 s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
870 if (!method->ssl_init(ssl))
873 s->server = (method->ssl_accept == ssl_undefined_function) ? 0 : 1;
875 if (!method->ssl_reset(ssl))
878 #ifndef OPENSSL_NO_PSK
879 s->psk_client_callback = ctx->psk_client_callback;
880 s->psk_server_callback = ctx->psk_server_callback;
882 s->psk_find_session_cb = ctx->psk_find_session_cb;
883 s->psk_use_session_cb = ctx->psk_use_session_cb;
885 s->async_cb = ctx->async_cb;
886 s->async_cb_arg = ctx->async_cb_arg;
890 #ifndef OPENSSL_NO_COMP_ALG
891 memcpy(s->cert_comp_prefs, ctx->cert_comp_prefs, sizeof(s->cert_comp_prefs));
893 if (ctx->client_cert_type != NULL) {
894 s->client_cert_type = OPENSSL_memdup(ctx->client_cert_type,
895 ctx->client_cert_type_len);
896 if (s->client_cert_type == NULL)
898 s->client_cert_type_len = ctx->client_cert_type_len;
900 if (ctx->server_cert_type != NULL) {
901 s->server_cert_type = OPENSSL_memdup(ctx->server_cert_type,
902 ctx->server_cert_type_len);
903 if (s->server_cert_type == NULL)
905 s->server_cert_type_len = ctx->server_cert_type_len;
908 #ifndef OPENSSL_NO_CT
909 if (!SSL_set_ct_validation_callback(ssl, ctx->ct_validation_callback,
910 ctx->ct_validation_callback_arg))
914 s->ssl_pkey_num = SSL_PKEY_NUM + ctx->sigalg_list_len;
917 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
920 ERR_raise(ERR_LIB_SSL, ERR_R_ASN1_LIB);
923 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
929 SSL *ossl_ssl_connection_new(SSL_CTX *ctx)
931 return ossl_ssl_connection_new_int(ctx, ctx->method);
934 int SSL_is_dtls(const SSL *s)
936 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
938 #ifndef OPENSSL_NO_QUIC
939 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
946 return SSL_CONNECTION_IS_DTLS(sc) ? 1 : 0;
949 int SSL_is_tls(const SSL *s)
951 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
953 #ifndef OPENSSL_NO_QUIC
954 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
961 return SSL_CONNECTION_IS_DTLS(sc) ? 0 : 1;
964 int SSL_is_quic(const SSL *s)
966 #ifndef OPENSSL_NO_QUIC
967 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
973 int SSL_up_ref(SSL *s)
977 if (CRYPTO_UP_REF(&s->references, &i) <= 0)
980 REF_PRINT_COUNT("SSL", s);
981 REF_ASSERT_ISNT(i < 2);
982 return ((i > 1) ? 1 : 0);
985 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
986 unsigned int sid_ctx_len)
988 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
989 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
992 ctx->sid_ctx_length = sid_ctx_len;
993 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
998 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
999 unsigned int sid_ctx_len)
1001 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1006 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
1007 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
1010 sc->sid_ctx_length = sid_ctx_len;
1011 memcpy(sc->sid_ctx, sid_ctx, sid_ctx_len);
1016 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
1018 if (!CRYPTO_THREAD_write_lock(ctx->lock))
1020 ctx->generate_session_id = cb;
1021 CRYPTO_THREAD_unlock(ctx->lock);
1025 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
1027 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1029 if (sc == NULL || !CRYPTO_THREAD_write_lock(ssl->lock))
1031 sc->generate_session_id = cb;
1032 CRYPTO_THREAD_unlock(ssl->lock);
1036 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
1037 unsigned int id_len)
1040 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
1041 * we can "construct" a session to give us the desired check - i.e. to
1042 * find if there's a session in the hash table that would conflict with
1043 * any new session built out of this id/id_len and the ssl_version in use
1047 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
1049 if (sc == NULL || id_len > sizeof(r.session_id))
1052 r.ssl_version = sc->version;
1053 r.session_id_length = id_len;
1054 memcpy(r.session_id, id, id_len);
1056 if (!CRYPTO_THREAD_read_lock(sc->session_ctx->lock))
1058 p = lh_SSL_SESSION_retrieve(sc->session_ctx->sessions, &r);
1059 CRYPTO_THREAD_unlock(sc->session_ctx->lock);
1063 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
1065 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
1068 int SSL_set_purpose(SSL *s, int purpose)
1070 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1075 return X509_VERIFY_PARAM_set_purpose(sc->param, purpose);
1078 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
1080 return X509_VERIFY_PARAM_set_trust(s->param, trust);
1083 int SSL_set_trust(SSL *s, int trust)
1085 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1090 return X509_VERIFY_PARAM_set_trust(sc->param, trust);
1093 int SSL_set1_host(SSL *s, const char *hostname)
1095 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1100 /* If a hostname is provided and parses as an IP address,
1101 * treat it as such. */
1102 if (hostname != NULL
1103 && X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname) == 1)
1106 return X509_VERIFY_PARAM_set1_host(sc->param, hostname, 0);
1109 int SSL_add1_host(SSL *s, const char *hostname)
1111 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1116 /* If a hostname is provided and parses as an IP address,
1117 * treat it as such. */
1120 ASN1_OCTET_STRING *ip;
1123 ip = a2i_IPADDRESS(hostname);
1125 /* We didn't want it; only to check if it *is* an IP address */
1126 ASN1_OCTET_STRING_free(ip);
1128 old_ip = X509_VERIFY_PARAM_get1_ip_asc(sc->param);
1131 OPENSSL_free(old_ip);
1132 /* There can be only one IP address */
1136 return X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname);
1140 return X509_VERIFY_PARAM_add1_host(sc->param, hostname, 0);
1143 void SSL_set_hostflags(SSL *s, unsigned int flags)
1145 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1150 X509_VERIFY_PARAM_set_hostflags(sc->param, flags);
1153 const char *SSL_get0_peername(SSL *s)
1155 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1160 return X509_VERIFY_PARAM_get0_peername(sc->param);
1163 int SSL_CTX_dane_enable(SSL_CTX *ctx)
1165 return dane_ctx_enable(&ctx->dane);
1168 unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
1170 unsigned long orig = ctx->dane.flags;
1172 ctx->dane.flags |= flags;
1176 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
1178 unsigned long orig = ctx->dane.flags;
1180 ctx->dane.flags &= ~flags;
1184 int SSL_dane_enable(SSL *s, const char *basedomain)
1187 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1193 if (s->ctx->dane.mdmax == 0) {
1194 ERR_raise(ERR_LIB_SSL, SSL_R_CONTEXT_NOT_DANE_ENABLED);
1197 if (dane->trecs != NULL) {
1198 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_ALREADY_ENABLED);
1203 * Default SNI name. This rejects empty names, while set1_host below
1204 * accepts them and disables hostname checks. To avoid side-effects with
1205 * invalid input, set the SNI name first.
1207 if (sc->ext.hostname == NULL) {
1208 if (!SSL_set_tlsext_host_name(s, basedomain)) {
1209 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1214 /* Primary RFC6125 reference identifier */
1215 if (!X509_VERIFY_PARAM_set1_host(sc->param, basedomain, 0)) {
1216 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1222 dane->dctx = &s->ctx->dane;
1223 dane->trecs = sk_danetls_record_new_null();
1225 if (dane->trecs == NULL) {
1226 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
1232 unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
1235 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1240 orig = sc->dane.flags;
1242 sc->dane.flags |= flags;
1246 unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
1249 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1254 orig = sc->dane.flags;
1256 sc->dane.flags &= ~flags;
1260 int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
1263 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1270 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1274 *mcert = dane->mcert;
1276 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
1281 int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
1282 uint8_t *mtype, const unsigned char **data, size_t *dlen)
1285 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1292 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1296 *usage = dane->mtlsa->usage;
1298 *selector = dane->mtlsa->selector;
1300 *mtype = dane->mtlsa->mtype;
1302 *data = dane->mtlsa->data;
1304 *dlen = dane->mtlsa->dlen;
1309 SSL_DANE *SSL_get0_dane(SSL *s)
1311 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1319 int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
1320 uint8_t mtype, const unsigned char *data, size_t dlen)
1322 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1327 return dane_tlsa_add(&sc->dane, usage, selector, mtype, data, dlen);
1330 int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
1333 return dane_mtype_set(&ctx->dane, md, mtype, ord);
1336 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
1338 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
1341 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
1343 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1348 return X509_VERIFY_PARAM_set1(sc->param, vpm);
1351 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
1356 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
1358 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1366 void SSL_certs_clear(SSL *s)
1368 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1373 ssl_cert_clear_certs(sc->cert);
1376 void SSL_free(SSL *s)
1382 CRYPTO_DOWN_REF(&s->references, &i);
1383 REF_PRINT_COUNT("SSL", s);
1386 REF_ASSERT_ISNT(i < 0);
1388 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1390 if (s->method != NULL)
1391 s->method->ssl_free(s);
1393 SSL_CTX_free(s->ctx);
1394 CRYPTO_THREAD_lock_free(s->lock);
1395 CRYPTO_FREE_REF(&s->references);
1400 void ossl_ssl_connection_free(SSL *ssl)
1404 s = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
1408 X509_VERIFY_PARAM_free(s->param);
1409 dane_final(&s->dane);
1411 /* Ignore return value */
1412 ssl_free_wbio_buffer(s);
1414 /* Ignore return value */
1415 RECORD_LAYER_clear(&s->rlayer);
1417 BUF_MEM_free(s->init_buf);
1419 /* add extra stuff */
1420 sk_SSL_CIPHER_free(s->cipher_list);
1421 sk_SSL_CIPHER_free(s->cipher_list_by_id);
1422 sk_SSL_CIPHER_free(s->tls13_ciphersuites);
1423 sk_SSL_CIPHER_free(s->peer_ciphers);
1425 /* Make the next call work :-) */
1426 if (s->session != NULL) {
1427 ssl_clear_bad_session(s);
1428 SSL_SESSION_free(s->session);
1430 SSL_SESSION_free(s->psksession);
1431 OPENSSL_free(s->psksession_id);
1433 ssl_cert_free(s->cert);
1434 OPENSSL_free(s->shared_sigalgs);
1435 /* Free up if allocated */
1437 OPENSSL_free(s->ext.hostname);
1438 SSL_CTX_free(s->session_ctx);
1439 OPENSSL_free(s->ext.ecpointformats);
1440 OPENSSL_free(s->ext.peer_ecpointformats);
1441 OPENSSL_free(s->ext.supportedgroups);
1442 OPENSSL_free(s->ext.peer_supportedgroups);
1443 sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
1444 #ifndef OPENSSL_NO_OCSP
1445 sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
1447 #ifndef OPENSSL_NO_CT
1448 SCT_LIST_free(s->scts);
1449 OPENSSL_free(s->ext.scts);
1451 OPENSSL_free(s->ext.ocsp.resp);
1452 OPENSSL_free(s->ext.alpn);
1453 OPENSSL_free(s->ext.tls13_cookie);
1454 if (s->clienthello != NULL)
1455 OPENSSL_free(s->clienthello->pre_proc_exts);
1456 OPENSSL_free(s->clienthello);
1457 OPENSSL_free(s->pha_context);
1458 EVP_MD_CTX_free(s->pha_dgst);
1460 sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
1461 sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
1463 OPENSSL_free(s->client_cert_type);
1464 OPENSSL_free(s->server_cert_type);
1466 OSSL_STACK_OF_X509_free(s->verified_chain);
1468 if (ssl->method != NULL)
1469 ssl->method->ssl_deinit(ssl);
1471 ASYNC_WAIT_CTX_free(s->waitctx);
1473 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1474 OPENSSL_free(s->ext.npn);
1477 #ifndef OPENSSL_NO_SRTP
1478 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
1482 * We do this late. We want to ensure that any other references we held to
1483 * these BIOs are freed first *before* we call BIO_free_all(), because
1484 * BIO_free_all() will only free each BIO in the chain if the number of
1485 * references to the first BIO have dropped to 0
1487 BIO_free_all(s->wbio);
1489 BIO_free_all(s->rbio);
1491 OPENSSL_free(s->s3.tmp.valid_flags);
1494 void SSL_set0_rbio(SSL *s, BIO *rbio)
1496 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1498 #ifndef OPENSSL_NO_QUIC
1500 ossl_quic_conn_set0_net_rbio(s, rbio);
1508 BIO_free_all(sc->rbio);
1510 sc->rlayer.rrlmethod->set1_bio(sc->rlayer.rrl, sc->rbio);
1513 void SSL_set0_wbio(SSL *s, BIO *wbio)
1515 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1517 #ifndef OPENSSL_NO_QUIC
1519 ossl_quic_conn_set0_net_wbio(s, wbio);
1528 * If the output buffering BIO is still in place, remove it
1530 if (sc->bbio != NULL)
1531 sc->wbio = BIO_pop(sc->wbio);
1533 BIO_free_all(sc->wbio);
1536 /* Re-attach |bbio| to the new |wbio|. */
1537 if (sc->bbio != NULL)
1538 sc->wbio = BIO_push(sc->bbio, sc->wbio);
1540 sc->rlayer.wrlmethod->set1_bio(sc->rlayer.wrl, sc->wbio);
1543 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1546 * For historical reasons, this function has many different cases in
1547 * ownership handling.
1550 /* If nothing has changed, do nothing */
1551 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1555 * If the two arguments are equal then one fewer reference is granted by the
1556 * caller than we want to take
1558 if (rbio != NULL && rbio == wbio)
1562 * If only the wbio is changed only adopt one reference.
1564 if (rbio == SSL_get_rbio(s)) {
1565 SSL_set0_wbio(s, wbio);
1569 * There is an asymmetry here for historical reasons. If only the rbio is
1570 * changed AND the rbio and wbio were originally different, then we only
1571 * adopt one reference.
1573 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1574 SSL_set0_rbio(s, rbio);
1578 /* Otherwise, adopt both references. */
1579 SSL_set0_rbio(s, rbio);
1580 SSL_set0_wbio(s, wbio);
1583 BIO *SSL_get_rbio(const SSL *s)
1585 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1587 #ifndef OPENSSL_NO_QUIC
1589 return ossl_quic_conn_get_net_rbio(s);
1598 BIO *SSL_get_wbio(const SSL *s)
1600 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1602 #ifndef OPENSSL_NO_QUIC
1604 return ossl_quic_conn_get_net_wbio(s);
1610 if (sc->bbio != NULL) {
1612 * If |bbio| is active, the true caller-configured BIO is its
1615 return BIO_next(sc->bbio);
1620 int SSL_get_fd(const SSL *s)
1622 return SSL_get_rfd(s);
1625 int SSL_get_rfd(const SSL *s)
1630 b = SSL_get_rbio(s);
1631 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1633 BIO_get_fd(r, &ret);
1637 int SSL_get_wfd(const SSL *s)
1642 b = SSL_get_wbio(s);
1643 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1645 BIO_get_fd(r, &ret);
1649 #ifndef OPENSSL_NO_SOCK
1650 static const BIO_METHOD *fd_method(SSL *s)
1652 #ifndef OPENSSL_NO_DGRAM
1654 return BIO_s_datagram();
1657 return BIO_s_socket();
1660 int SSL_set_fd(SSL *s, int fd)
1665 if (s->type == SSL_TYPE_QUIC_XSO) {
1666 ERR_raise(ERR_LIB_SSL, SSL_R_CONN_USE_ONLY);
1670 bio = BIO_new(fd_method(s));
1673 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1676 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1677 SSL_set_bio(s, bio, bio);
1678 #ifndef OPENSSL_NO_KTLS
1680 * The new socket is created successfully regardless of ktls_enable.
1681 * ktls_enable doesn't change any functionality of the socket, except
1682 * changing the setsockopt to enable the processing of ktls_start.
1683 * Thus, it is not a problem to call it for non-TLS sockets.
1686 #endif /* OPENSSL_NO_KTLS */
1692 int SSL_set_wfd(SSL *s, int fd)
1694 BIO *rbio = SSL_get_rbio(s);
1695 int desired_type = IS_QUIC(s) ? BIO_TYPE_DGRAM : BIO_TYPE_SOCKET;
1697 if (s->type == SSL_TYPE_QUIC_XSO) {
1698 ERR_raise(ERR_LIB_SSL, SSL_R_CONN_USE_ONLY);
1702 if (rbio == NULL || BIO_method_type(rbio) != desired_type
1703 || (int)BIO_get_fd(rbio, NULL) != fd) {
1704 BIO *bio = BIO_new(fd_method(s));
1707 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1710 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1711 SSL_set0_wbio(s, bio);
1712 #ifndef OPENSSL_NO_KTLS
1714 * The new socket is created successfully regardless of ktls_enable.
1715 * ktls_enable doesn't change any functionality of the socket, except
1716 * changing the setsockopt to enable the processing of ktls_start.
1717 * Thus, it is not a problem to call it for non-TLS sockets.
1720 #endif /* OPENSSL_NO_KTLS */
1723 SSL_set0_wbio(s, rbio);
1728 int SSL_set_rfd(SSL *s, int fd)
1730 BIO *wbio = SSL_get_wbio(s);
1731 int desired_type = IS_QUIC(s) ? BIO_TYPE_DGRAM : BIO_TYPE_SOCKET;
1733 if (s->type == SSL_TYPE_QUIC_XSO) {
1734 ERR_raise(ERR_LIB_SSL, SSL_R_CONN_USE_ONLY);
1738 if (wbio == NULL || BIO_method_type(wbio) != desired_type
1739 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
1740 BIO *bio = BIO_new(fd_method(s));
1743 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1746 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1747 SSL_set0_rbio(s, bio);
1750 SSL_set0_rbio(s, wbio);
1757 /* return length of latest Finished message we sent, copy to 'buf' */
1758 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
1761 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1766 ret = sc->s3.tmp.finish_md_len;
1769 memcpy(buf, sc->s3.tmp.finish_md, count);
1773 /* return length of latest Finished message we expected, copy to 'buf' */
1774 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
1777 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1782 ret = sc->s3.tmp.peer_finish_md_len;
1785 memcpy(buf, sc->s3.tmp.peer_finish_md, count);
1789 int SSL_get_verify_mode(const SSL *s)
1791 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1796 return sc->verify_mode;
1799 int SSL_get_verify_depth(const SSL *s)
1801 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1806 return X509_VERIFY_PARAM_get_depth(sc->param);
1809 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
1810 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1815 return sc->verify_callback;
1818 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
1820 return ctx->verify_mode;
1823 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
1825 return X509_VERIFY_PARAM_get_depth(ctx->param);
1828 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
1829 return ctx->default_verify_callback;
1832 void SSL_set_verify(SSL *s, int mode,
1833 int (*callback) (int ok, X509_STORE_CTX *ctx))
1835 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1840 sc->verify_mode = mode;
1841 if (callback != NULL)
1842 sc->verify_callback = callback;
1845 void SSL_set_verify_depth(SSL *s, int depth)
1847 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1852 X509_VERIFY_PARAM_set_depth(sc->param, depth);
1855 void SSL_set_read_ahead(SSL *s, int yes)
1857 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
1858 OSSL_PARAM options[2], *opts = options;
1863 RECORD_LAYER_set_read_ahead(&sc->rlayer, yes);
1865 *opts++ = OSSL_PARAM_construct_int(OSSL_LIBSSL_RECORD_LAYER_PARAM_READ_AHEAD,
1866 &sc->rlayer.read_ahead);
1867 *opts = OSSL_PARAM_construct_end();
1869 /* Ignore return value */
1870 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
1873 int SSL_get_read_ahead(const SSL *s)
1875 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
1880 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
1883 int SSL_pending(const SSL *s)
1885 size_t pending = s->method->ssl_pending(s);
1888 * SSL_pending cannot work properly if read-ahead is enabled
1889 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1890 * impossible to fix since SSL_pending cannot report errors that may be
1891 * observed while scanning the new data. (Note that SSL_pending() is
1892 * often used as a boolean value, so we'd better not return -1.)
1894 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1895 * we just return INT_MAX.
1897 return pending < INT_MAX ? (int)pending : INT_MAX;
1900 int SSL_has_pending(const SSL *s)
1903 * Similar to SSL_pending() but returns a 1 to indicate that we have
1904 * processed or unprocessed data available or 0 otherwise (as opposed to the
1905 * number of bytes available). Unlike SSL_pending() this will take into
1906 * account read_ahead data. A 1 return simply indicates that we have data.
1907 * That data may not result in any application data, or we may fail to parse
1908 * the records for some reason.
1910 const SSL_CONNECTION *sc;
1912 #ifndef OPENSSL_NO_QUIC
1914 return ossl_quic_has_pending(s);
1917 sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1919 /* Check buffered app data if any first */
1920 if (SSL_CONNECTION_IS_DTLS(sc)) {
1924 iter = pqueue_iterator(sc->rlayer.d->buffered_app_data);
1925 while ((item = pqueue_next(&iter)) != NULL) {
1927 if (rdata->length > 0)
1932 if (RECORD_LAYER_processed_read_pending(&sc->rlayer))
1935 return RECORD_LAYER_read_pending(&sc->rlayer);
1938 X509 *SSL_get1_peer_certificate(const SSL *s)
1940 X509 *r = SSL_get0_peer_certificate(s);
1948 X509 *SSL_get0_peer_certificate(const SSL *s)
1950 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1955 if (sc->session == NULL)
1958 return sc->session->peer;
1961 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
1964 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1969 if (sc->session == NULL)
1972 r = sc->session->peer_chain;
1975 * If we are a client, cert_chain includes the peer's own certificate; if
1976 * we are a server, it does not.
1983 * Now in theory, since the calling process own 't' it should be safe to
1984 * modify. We need to be able to read f without being hassled
1986 int SSL_copy_session_id(SSL *t, const SSL *f)
1989 /* TODO(QUIC FUTURE): Not allowed for QUIC currently. */
1990 SSL_CONNECTION *tsc = SSL_CONNECTION_FROM_SSL_ONLY(t);
1991 const SSL_CONNECTION *fsc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(f);
1993 if (tsc == NULL || fsc == NULL)
1996 /* Do we need to do SSL locking? */
1997 if (!SSL_set_session(t, SSL_get_session(f))) {
2002 * what if we are setup for one protocol version but want to talk another
2004 if (t->method != f->method) {
2005 t->method->ssl_deinit(t);
2006 t->method = f->method;
2007 if (t->method->ssl_init(t) == 0)
2011 CRYPTO_UP_REF(&fsc->cert->references, &i);
2012 ssl_cert_free(tsc->cert);
2013 tsc->cert = fsc->cert;
2014 if (!SSL_set_session_id_context(t, fsc->sid_ctx, (int)fsc->sid_ctx_length)) {
2021 /* Fix this so it checks all the valid key/cert options */
2022 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
2024 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
2025 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
2028 if (ctx->cert->key->privatekey == NULL) {
2029 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
2032 return X509_check_private_key
2033 (ctx->cert->key->x509, ctx->cert->key->privatekey);
2036 /* Fix this function so that it takes an optional type parameter */
2037 int SSL_check_private_key(const SSL *ssl)
2039 const SSL_CONNECTION *sc;
2041 if ((sc = SSL_CONNECTION_FROM_CONST_SSL(ssl)) == NULL) {
2042 ERR_raise(ERR_LIB_SSL, ERR_R_PASSED_NULL_PARAMETER);
2045 if (sc->cert->key->x509 == NULL) {
2046 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
2049 if (sc->cert->key->privatekey == NULL) {
2050 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
2053 return X509_check_private_key(sc->cert->key->x509,
2054 sc->cert->key->privatekey);
2057 int SSL_waiting_for_async(SSL *s)
2059 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2070 int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
2072 ASYNC_WAIT_CTX *ctx;
2073 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2078 if ((ctx = sc->waitctx) == NULL)
2080 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
2083 int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
2084 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
2086 ASYNC_WAIT_CTX *ctx;
2087 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2092 if ((ctx = sc->waitctx) == NULL)
2094 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
2098 int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback)
2100 ctx->async_cb = callback;
2104 int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg)
2106 ctx->async_cb_arg = arg;
2110 int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback)
2112 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2117 sc->async_cb = callback;
2121 int SSL_set_async_callback_arg(SSL *s, void *arg)
2123 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2128 sc->async_cb_arg = arg;
2132 int SSL_get_async_status(SSL *s, int *status)
2134 ASYNC_WAIT_CTX *ctx;
2135 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2140 if ((ctx = sc->waitctx) == NULL)
2142 *status = ASYNC_WAIT_CTX_get_status(ctx);
2146 int SSL_accept(SSL *s)
2148 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2150 #ifndef OPENSSL_NO_QUIC
2152 return s->method->ssl_accept(s);
2158 if (sc->handshake_func == NULL) {
2159 /* Not properly initialized yet */
2160 SSL_set_accept_state(s);
2163 return SSL_do_handshake(s);
2166 int SSL_connect(SSL *s)
2168 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2170 #ifndef OPENSSL_NO_QUIC
2172 return s->method->ssl_connect(s);
2178 if (sc->handshake_func == NULL) {
2179 /* Not properly initialized yet */
2180 SSL_set_connect_state(s);
2183 return SSL_do_handshake(s);
2186 long SSL_get_default_timeout(const SSL *s)
2188 return (long int)ossl_time2seconds(s->method->get_timeout());
2191 static int ssl_async_wait_ctx_cb(void *arg)
2193 SSL *s = (SSL *)arg;
2194 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2199 return sc->async_cb(s, sc->async_cb_arg);
2202 static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
2203 int (*func) (void *))
2206 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2211 if (sc->waitctx == NULL) {
2212 sc->waitctx = ASYNC_WAIT_CTX_new();
2213 if (sc->waitctx == NULL)
2215 if (sc->async_cb != NULL
2216 && !ASYNC_WAIT_CTX_set_callback
2217 (sc->waitctx, ssl_async_wait_ctx_cb, s))
2221 sc->rwstate = SSL_NOTHING;
2222 switch (ASYNC_start_job(&sc->job, sc->waitctx, &ret, func, args,
2223 sizeof(struct ssl_async_args))) {
2225 sc->rwstate = SSL_NOTHING;
2226 ERR_raise(ERR_LIB_SSL, SSL_R_FAILED_TO_INIT_ASYNC);
2229 sc->rwstate = SSL_ASYNC_PAUSED;
2232 sc->rwstate = SSL_ASYNC_NO_JOBS;
2238 sc->rwstate = SSL_NOTHING;
2239 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
2240 /* Shouldn't happen */
2245 static int ssl_io_intern(void *vargs)
2247 struct ssl_async_args *args;
2253 args = (struct ssl_async_args *)vargs;
2257 if ((sc = SSL_CONNECTION_FROM_SSL(s)) == NULL)
2260 switch (args->type) {
2262 return args->f.func_read(s, buf, num, &sc->asyncrw);
2264 return args->f.func_write(s, buf, num, &sc->asyncrw);
2266 return args->f.func_other(s);
2271 int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2273 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2275 #ifndef OPENSSL_NO_QUIC
2277 return s->method->ssl_read(s, buf, num, readbytes);
2283 if (sc->handshake_func == NULL) {
2284 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2288 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2289 sc->rwstate = SSL_NOTHING;
2293 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2294 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
2295 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2299 * If we are a client and haven't received the ServerHello etc then we
2302 ossl_statem_check_finish_init(sc, 0);
2304 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2305 struct ssl_async_args args;
2311 args.type = READFUNC;
2312 args.f.func_read = s->method->ssl_read;
2314 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2315 *readbytes = sc->asyncrw;
2318 return s->method->ssl_read(s, buf, num, readbytes);
2322 int SSL_read(SSL *s, void *buf, int num)
2328 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2332 ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
2335 * The cast is safe here because ret should be <= INT_MAX because num is
2339 ret = (int)readbytes;
2344 int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2346 int ret = ssl_read_internal(s, buf, num, readbytes);
2353 int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
2356 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2358 /* TODO(QUIC 0RTT): 0-RTT support */
2359 if (sc == NULL || !sc->server) {
2360 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2361 return SSL_READ_EARLY_DATA_ERROR;
2364 switch (sc->early_data_state) {
2365 case SSL_EARLY_DATA_NONE:
2366 if (!SSL_in_before(s)) {
2367 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2368 return SSL_READ_EARLY_DATA_ERROR;
2372 case SSL_EARLY_DATA_ACCEPT_RETRY:
2373 sc->early_data_state = SSL_EARLY_DATA_ACCEPTING;
2374 ret = SSL_accept(s);
2377 sc->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
2378 return SSL_READ_EARLY_DATA_ERROR;
2382 case SSL_EARLY_DATA_READ_RETRY:
2383 if (sc->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
2384 sc->early_data_state = SSL_EARLY_DATA_READING;
2385 ret = SSL_read_ex(s, buf, num, readbytes);
2387 * State machine will update early_data_state to
2388 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
2391 if (ret > 0 || (ret <= 0 && sc->early_data_state
2392 != SSL_EARLY_DATA_FINISHED_READING)) {
2393 sc->early_data_state = SSL_EARLY_DATA_READ_RETRY;
2394 return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
2395 : SSL_READ_EARLY_DATA_ERROR;
2398 sc->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
2401 return SSL_READ_EARLY_DATA_FINISH;
2404 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2405 return SSL_READ_EARLY_DATA_ERROR;
2409 int SSL_get_early_data_status(const SSL *s)
2411 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
2413 /* TODO(QUIC 0RTT): 0-RTT support */
2417 return sc->ext.early_data;
2420 static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2422 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2424 #ifndef OPENSSL_NO_QUIC
2426 return s->method->ssl_peek(s, buf, num, readbytes);
2432 if (sc->handshake_func == NULL) {
2433 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2437 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2440 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2441 struct ssl_async_args args;
2447 args.type = READFUNC;
2448 args.f.func_read = s->method->ssl_peek;
2450 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2451 *readbytes = sc->asyncrw;
2454 return s->method->ssl_peek(s, buf, num, readbytes);
2458 int SSL_peek(SSL *s, void *buf, int num)
2464 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2468 ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
2471 * The cast is safe here because ret should be <= INT_MAX because num is
2475 ret = (int)readbytes;
2481 int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2483 int ret = ssl_peek_internal(s, buf, num, readbytes);
2490 int ssl_write_internal(SSL *s, const void *buf, size_t num,
2491 uint64_t flags, size_t *written)
2493 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2495 #ifndef OPENSSL_NO_QUIC
2497 return ossl_quic_write_flags(s, buf, num, flags, written);
2503 if (sc->handshake_func == NULL) {
2504 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2508 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2509 sc->rwstate = SSL_NOTHING;
2510 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2515 ERR_raise(ERR_LIB_SSL, SSL_R_UNSUPPORTED_WRITE_FLAG);
2519 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2520 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
2521 || sc->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
2522 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2525 /* If we are a client and haven't sent the Finished we better do that */
2526 ossl_statem_check_finish_init(sc, 1);
2528 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2530 struct ssl_async_args args;
2533 args.buf = (void *)buf;
2535 args.type = WRITEFUNC;
2536 args.f.func_write = s->method->ssl_write;
2538 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2539 *written = sc->asyncrw;
2542 return s->method->ssl_write(s, buf, num, written);
2546 ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size, int flags)
2549 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2554 if (sc->handshake_func == NULL) {
2555 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2559 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2560 sc->rwstate = SSL_NOTHING;
2561 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2565 if (!BIO_get_ktls_send(sc->wbio)) {
2566 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2570 /* If we have an alert to send, lets send it */
2571 if (sc->s3.alert_dispatch > 0) {
2572 ret = (ossl_ssize_t)s->method->ssl_dispatch_alert(s);
2574 /* SSLfatal() already called if appropriate */
2577 /* if it went, fall through and send more stuff */
2580 sc->rwstate = SSL_WRITING;
2581 if (BIO_flush(sc->wbio) <= 0) {
2582 if (!BIO_should_retry(sc->wbio)) {
2583 sc->rwstate = SSL_NOTHING;
2586 set_sys_error(EAGAIN);
2592 #ifdef OPENSSL_NO_KTLS
2593 ERR_raise_data(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR,
2594 "can't call ktls_sendfile(), ktls disabled");
2597 ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags);
2599 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2600 if ((get_last_sys_error() == EAGAIN) ||
2601 (get_last_sys_error() == EINTR) ||
2602 (get_last_sys_error() == EBUSY))
2603 BIO_set_retry_write(sc->wbio);
2606 ERR_raise_data(ERR_LIB_SYS, get_last_sys_error(),
2607 "ktls_sendfile failure");
2610 sc->rwstate = SSL_NOTHING;
2615 int SSL_write(SSL *s, const void *buf, int num)
2621 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2625 ret = ssl_write_internal(s, buf, (size_t)num, 0, &written);
2628 * The cast is safe here because ret should be <= INT_MAX because num is
2637 int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
2639 return SSL_write_ex2(s, buf, num, 0, written);
2642 int SSL_write_ex2(SSL *s, const void *buf, size_t num, uint64_t flags,
2645 int ret = ssl_write_internal(s, buf, num, flags, written);
2652 int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
2654 int ret, early_data_state;
2656 uint32_t partialwrite;
2657 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2659 /* TODO(QUIC 0RTT): This will need special handling for QUIC */
2663 switch (sc->early_data_state) {
2664 case SSL_EARLY_DATA_NONE:
2666 || !SSL_in_before(s)
2667 || ((sc->session == NULL || sc->session->ext.max_early_data == 0)
2668 && (sc->psk_use_session_cb == NULL))) {
2669 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2674 case SSL_EARLY_DATA_CONNECT_RETRY:
2675 sc->early_data_state = SSL_EARLY_DATA_CONNECTING;
2676 ret = SSL_connect(s);
2679 sc->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
2684 case SSL_EARLY_DATA_WRITE_RETRY:
2685 sc->early_data_state = SSL_EARLY_DATA_WRITING;
2687 * We disable partial write for early data because we don't keep track
2688 * of how many bytes we've written between the SSL_write_ex() call and
2689 * the flush if the flush needs to be retried)
2691 partialwrite = sc->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
2692 sc->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
2693 ret = SSL_write_ex(s, buf, num, &writtmp);
2694 sc->mode |= partialwrite;
2696 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2699 sc->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
2702 case SSL_EARLY_DATA_WRITE_FLUSH:
2703 /* The buffering BIO is still in place so we need to flush it */
2704 if (statem_flush(sc) != 1)
2707 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2710 case SSL_EARLY_DATA_FINISHED_READING:
2711 case SSL_EARLY_DATA_READ_RETRY:
2712 early_data_state = sc->early_data_state;
2713 /* We are a server writing to an unauthenticated client */
2714 sc->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
2715 ret = SSL_write_ex(s, buf, num, written);
2716 /* The buffering BIO is still in place */
2718 (void)BIO_flush(sc->wbio);
2719 sc->early_data_state = early_data_state;
2723 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2728 int SSL_shutdown(SSL *s)
2731 * Note that this function behaves differently from what one might
2732 * expect. Return values are 0 for no success (yet), 1 for success; but
2733 * calling it once is usually not enough, even if blocking I/O is used
2734 * (see ssl3_shutdown).
2736 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2738 #ifndef OPENSSL_NO_QUIC
2740 return ossl_quic_conn_shutdown(s, 0, NULL, 0);
2746 if (sc->handshake_func == NULL) {
2747 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2751 if (!SSL_in_init(s)) {
2752 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2753 struct ssl_async_args args;
2755 memset(&args, 0, sizeof(args));
2757 args.type = OTHERFUNC;
2758 args.f.func_other = s->method->ssl_shutdown;
2760 return ssl_start_async_job(s, &args, ssl_io_intern);
2762 return s->method->ssl_shutdown(s);
2765 ERR_raise(ERR_LIB_SSL, SSL_R_SHUTDOWN_WHILE_IN_INIT);
2770 int SSL_key_update(SSL *s, int updatetype)
2772 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2774 #ifndef OPENSSL_NO_QUIC
2776 return ossl_quic_key_update(s, updatetype);
2782 if (!SSL_CONNECTION_IS_TLS13(sc)) {
2783 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2787 if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
2788 && updatetype != SSL_KEY_UPDATE_REQUESTED) {
2789 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_KEY_UPDATE_TYPE);
2793 if (!SSL_is_init_finished(s)) {
2794 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
2798 if (RECORD_LAYER_write_pending(&sc->rlayer)) {
2799 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_WRITE_RETRY);
2803 ossl_statem_set_in_init(sc, 1);
2804 sc->key_update = updatetype;
2808 int SSL_get_key_update_type(const SSL *s)
2810 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
2812 #ifndef OPENSSL_NO_QUIC
2814 return ossl_quic_get_key_update_type(s);
2820 return sc->key_update;
2824 * Can we accept a renegotiation request? If yes, set the flag and
2825 * return 1 if yes. If not, raise error and return 0.
2827 static int can_renegotiate(const SSL_CONNECTION *sc)
2829 if (SSL_CONNECTION_IS_TLS13(sc)) {
2830 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2834 if ((sc->options & SSL_OP_NO_RENEGOTIATION) != 0) {
2835 ERR_raise(ERR_LIB_SSL, SSL_R_NO_RENEGOTIATION);
2842 int SSL_renegotiate(SSL *s)
2844 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2849 if (!can_renegotiate(sc))
2852 sc->renegotiate = 1;
2853 sc->new_session = 1;
2854 return s->method->ssl_renegotiate(s);
2857 int SSL_renegotiate_abbreviated(SSL *s)
2859 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2864 if (!can_renegotiate(sc))
2867 sc->renegotiate = 1;
2868 sc->new_session = 0;
2869 return s->method->ssl_renegotiate(s);
2872 int SSL_renegotiate_pending(const SSL *s)
2874 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2880 * becomes true when negotiation is requested; false again once a
2881 * handshake has finished
2883 return (sc->renegotiate != 0);
2886 int SSL_new_session_ticket(SSL *s)
2888 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2893 /* If we are in init because we're sending tickets, okay to send more. */
2894 if ((SSL_in_init(s) && sc->ext.extra_tickets_expected == 0)
2895 || SSL_IS_FIRST_HANDSHAKE(sc) || !sc->server
2896 || !SSL_CONNECTION_IS_TLS13(sc))
2898 sc->ext.extra_tickets_expected++;
2899 if (!RECORD_LAYER_write_pending(&sc->rlayer) && !SSL_in_init(s))
2900 ossl_statem_set_in_init(sc, 1);
2904 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
2906 return ossl_ctrl_internal(s, cmd, larg, parg, /*no_quic=*/0);
2909 long ossl_ctrl_internal(SSL *s, int cmd, long larg, void *parg, int no_quic)
2912 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2915 * Routing of ctrl calls for QUIC is a little counterintuitive:
2917 * - Firstly (no_quic=0), we pass the ctrl directly to our QUIC
2918 * implementation in case it wants to handle the ctrl specially.
2920 * - If our QUIC implementation does not care about the ctrl, it
2921 * will reenter this function with no_quic=1 and we will try to handle
2922 * it directly using the QCSO SSL object stub (not the handshake layer
2923 * SSL object). This is important for e.g. the version configuration
2924 * ctrls below, which must use s->defltmeth (and not sc->defltmeth).
2926 * - If we don't handle a ctrl here specially, then processing is
2927 * redirected to the handshake layer SSL object.
2929 if (!no_quic && IS_QUIC(s))
2930 return s->method->ssl_ctrl(s, cmd, larg, parg);
2936 case SSL_CTRL_GET_READ_AHEAD:
2937 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
2938 case SSL_CTRL_SET_READ_AHEAD:
2939 l = RECORD_LAYER_get_read_ahead(&sc->rlayer);
2940 RECORD_LAYER_set_read_ahead(&sc->rlayer, larg);
2945 OSSL_PARAM options[2], *opts = options;
2949 *opts++ = OSSL_PARAM_construct_uint32(OSSL_LIBSSL_RECORD_LAYER_PARAM_MODE,
2951 *opts = OSSL_PARAM_construct_end();
2953 /* Ignore return value */
2954 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
2958 case SSL_CTRL_CLEAR_MODE:
2959 return (sc->mode &= ~larg);
2960 case SSL_CTRL_GET_MAX_CERT_LIST:
2961 return (long)sc->max_cert_list;
2962 case SSL_CTRL_SET_MAX_CERT_LIST:
2965 l = (long)sc->max_cert_list;
2966 sc->max_cert_list = (size_t)larg;
2968 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2969 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2971 #ifndef OPENSSL_NO_KTLS
2972 if (sc->wbio != NULL && BIO_get_ktls_send(sc->wbio))
2974 #endif /* OPENSSL_NO_KTLS */
2975 sc->max_send_fragment = larg;
2976 if (sc->max_send_fragment < sc->split_send_fragment)
2977 sc->split_send_fragment = sc->max_send_fragment;
2978 sc->rlayer.wrlmethod->set_max_frag_len(sc->rlayer.wrl, larg);
2980 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2981 if ((size_t)larg > sc->max_send_fragment || larg == 0)
2983 sc->split_send_fragment = larg;
2985 case SSL_CTRL_SET_MAX_PIPELINES:
2986 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2988 sc->max_pipelines = larg;
2989 if (sc->rlayer.rrlmethod->set_max_pipelines != NULL)
2990 sc->rlayer.rrlmethod->set_max_pipelines(sc->rlayer.rrl, (size_t)larg);
2992 case SSL_CTRL_GET_RI_SUPPORT:
2993 return sc->s3.send_connection_binding;
2994 case SSL_CTRL_SET_RETRY_VERIFY:
2995 sc->rwstate = SSL_RETRY_VERIFY;
2997 case SSL_CTRL_CERT_FLAGS:
2998 return (sc->cert->cert_flags |= larg);
2999 case SSL_CTRL_CLEAR_CERT_FLAGS:
3000 return (sc->cert->cert_flags &= ~larg);
3002 case SSL_CTRL_GET_RAW_CIPHERLIST:
3004 if (sc->s3.tmp.ciphers_raw == NULL)
3006 *(unsigned char **)parg = sc->s3.tmp.ciphers_raw;
3007 return (int)sc->s3.tmp.ciphers_rawlen;
3009 return TLS_CIPHER_LEN;
3011 case SSL_CTRL_GET_EXTMS_SUPPORT:
3012 if (!sc->session || SSL_in_init(s) || ossl_statem_get_in_handshake(sc))
3014 if (sc->session->flags & SSL_SESS_FLAG_EXTMS)
3018 case SSL_CTRL_SET_MIN_PROTO_VERSION:
3019 return ssl_check_allowed_versions(larg, sc->max_proto_version)
3020 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
3021 &sc->min_proto_version);
3022 case SSL_CTRL_GET_MIN_PROTO_VERSION:
3023 return sc->min_proto_version;
3024 case SSL_CTRL_SET_MAX_PROTO_VERSION:
3025 return ssl_check_allowed_versions(sc->min_proto_version, larg)
3026 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
3027 &sc->max_proto_version);
3028 case SSL_CTRL_GET_MAX_PROTO_VERSION:
3029 return sc->max_proto_version;
3032 return SSL_ctrl((SSL *)sc, cmd, larg, parg);
3034 return s->method->ssl_ctrl(s, cmd, larg, parg);
3038 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
3040 return s->method->ssl_callback_ctrl(s, cmd, fp);
3043 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
3045 return ctx->sessions;
3048 static int ssl_tsan_load(SSL_CTX *ctx, TSAN_QUALIFIER int *stat)
3052 if (ssl_tsan_lock(ctx)) {
3053 res = tsan_load(stat);
3054 ssl_tsan_unlock(ctx);
3059 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
3062 /* For some cases with ctx == NULL perform syntax checks */
3065 case SSL_CTRL_SET_GROUPS_LIST:
3066 return tls1_set_groups_list(ctx, NULL, NULL, parg);
3067 case SSL_CTRL_SET_SIGALGS_LIST:
3068 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
3069 return tls1_set_sigalgs_list(ctx, NULL, parg, 0);
3076 case SSL_CTRL_GET_READ_AHEAD:
3077 return ctx->read_ahead;
3078 case SSL_CTRL_SET_READ_AHEAD:
3079 l = ctx->read_ahead;
3080 ctx->read_ahead = larg;
3083 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
3084 ctx->msg_callback_arg = parg;
3087 case SSL_CTRL_GET_MAX_CERT_LIST:
3088 return (long)ctx->max_cert_list;
3089 case SSL_CTRL_SET_MAX_CERT_LIST:
3092 l = (long)ctx->max_cert_list;
3093 ctx->max_cert_list = (size_t)larg;
3096 case SSL_CTRL_SET_SESS_CACHE_SIZE:
3099 l = (long)ctx->session_cache_size;
3100 ctx->session_cache_size = (size_t)larg;
3102 case SSL_CTRL_GET_SESS_CACHE_SIZE:
3103 return (long)ctx->session_cache_size;
3104 case SSL_CTRL_SET_SESS_CACHE_MODE:
3105 l = ctx->session_cache_mode;
3106 ctx->session_cache_mode = larg;
3108 case SSL_CTRL_GET_SESS_CACHE_MODE:
3109 return ctx->session_cache_mode;
3111 case SSL_CTRL_SESS_NUMBER:
3112 return lh_SSL_SESSION_num_items(ctx->sessions);
3113 case SSL_CTRL_SESS_CONNECT:
3114 return ssl_tsan_load(ctx, &ctx->stats.sess_connect);
3115 case SSL_CTRL_SESS_CONNECT_GOOD:
3116 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_good);
3117 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
3118 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_renegotiate);
3119 case SSL_CTRL_SESS_ACCEPT:
3120 return ssl_tsan_load(ctx, &ctx->stats.sess_accept);
3121 case SSL_CTRL_SESS_ACCEPT_GOOD:
3122 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_good);
3123 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
3124 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_renegotiate);
3125 case SSL_CTRL_SESS_HIT:
3126 return ssl_tsan_load(ctx, &ctx->stats.sess_hit);
3127 case SSL_CTRL_SESS_CB_HIT:
3128 return ssl_tsan_load(ctx, &ctx->stats.sess_cb_hit);
3129 case SSL_CTRL_SESS_MISSES:
3130 return ssl_tsan_load(ctx, &ctx->stats.sess_miss);
3131 case SSL_CTRL_SESS_TIMEOUTS:
3132 return ssl_tsan_load(ctx, &ctx->stats.sess_timeout);
3133 case SSL_CTRL_SESS_CACHE_FULL:
3134 return ssl_tsan_load(ctx, &ctx->stats.sess_cache_full);
3136 return (ctx->mode |= larg);
3137 case SSL_CTRL_CLEAR_MODE:
3138 return (ctx->mode &= ~larg);
3139 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
3140 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
3142 ctx->max_send_fragment = larg;
3143 if (ctx->max_send_fragment < ctx->split_send_fragment)
3144 ctx->split_send_fragment = ctx->max_send_fragment;
3146 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
3147 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
3149 ctx->split_send_fragment = larg;
3151 case SSL_CTRL_SET_MAX_PIPELINES:
3152 if (larg < 1 || larg > SSL_MAX_PIPELINES)
3154 ctx->max_pipelines = larg;
3156 case SSL_CTRL_CERT_FLAGS:
3157 return (ctx->cert->cert_flags |= larg);
3158 case SSL_CTRL_CLEAR_CERT_FLAGS:
3159 return (ctx->cert->cert_flags &= ~larg);
3160 case SSL_CTRL_SET_MIN_PROTO_VERSION:
3161 return ssl_check_allowed_versions(larg, ctx->max_proto_version)
3162 && ssl_set_version_bound(ctx->method->version, (int)larg,
3163 &ctx->min_proto_version);
3164 case SSL_CTRL_GET_MIN_PROTO_VERSION:
3165 return ctx->min_proto_version;
3166 case SSL_CTRL_SET_MAX_PROTO_VERSION:
3167 return ssl_check_allowed_versions(ctx->min_proto_version, larg)
3168 && ssl_set_version_bound(ctx->method->version, (int)larg,
3169 &ctx->max_proto_version);
3170 case SSL_CTRL_GET_MAX_PROTO_VERSION:
3171 return ctx->max_proto_version;
3173 return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
3177 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
3180 case SSL_CTRL_SET_MSG_CALLBACK:
3181 ctx->msg_callback = (void (*)
3182 (int write_p, int version, int content_type,
3183 const void *buf, size_t len, SSL *ssl,
3188 return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
3192 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
3201 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
3202 const SSL_CIPHER *const *bp)
3204 if ((*ap)->id > (*bp)->id)
3206 if ((*ap)->id < (*bp)->id)
3212 * return a STACK of the ciphers available for the SSL and in order of
3215 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
3217 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3220 if (sc->cipher_list != NULL) {
3221 return sc->cipher_list;
3222 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
3223 return s->ctx->cipher_list;
3229 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
3231 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3233 if (sc == NULL || !sc->server)
3235 return sc->peer_ciphers;
3238 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
3240 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
3242 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3247 ciphers = SSL_get_ciphers(s);
3250 if (!ssl_set_client_disabled(sc))
3252 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
3253 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
3254 if (!ssl_cipher_disabled(sc, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
3256 sk = sk_SSL_CIPHER_new_null();
3259 if (!sk_SSL_CIPHER_push(sk, c)) {
3260 sk_SSL_CIPHER_free(sk);
3268 /** return a STACK of the ciphers available for the SSL and in order of
3270 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL_CONNECTION *s)
3273 if (s->cipher_list_by_id != NULL)
3274 return s->cipher_list_by_id;
3275 else if (s->ssl.ctx != NULL
3276 && s->ssl.ctx->cipher_list_by_id != NULL)
3277 return s->ssl.ctx->cipher_list_by_id;
3282 /** The old interface to get the same thing as SSL_get_ciphers() */
3283 const char *SSL_get_cipher_list(const SSL *s, int n)
3285 const SSL_CIPHER *c;
3286 STACK_OF(SSL_CIPHER) *sk;
3290 sk = SSL_get_ciphers(s);
3291 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
3293 c = sk_SSL_CIPHER_value(sk, n);
3299 /** return a STACK of the ciphers available for the SSL_CTX and in order of
3301 STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
3304 return ctx->cipher_list;
3309 * Distinguish between ciphers controlled by set_ciphersuite() and
3310 * set_cipher_list() when counting.
3312 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
3315 const SSL_CIPHER *c;
3319 for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
3320 c = sk_SSL_CIPHER_value(sk, i);
3321 if (c->min_tls >= TLS1_3_VERSION)
3328 /** specify the ciphers to be used by default by the SSL_CTX */
3329 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
3331 STACK_OF(SSL_CIPHER) *sk;
3333 sk = ssl_create_cipher_list(ctx, ctx->tls13_ciphersuites,
3334 &ctx->cipher_list, &ctx->cipher_list_by_id, str,
3337 * ssl_create_cipher_list may return an empty stack if it was unable to
3338 * find a cipher matching the given rule string (for example if the rule
3339 * string specifies a cipher which has been disabled). This is not an
3340 * error as far as ssl_create_cipher_list is concerned, and hence
3341 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
3345 else if (cipher_list_tls12_num(sk) == 0) {
3346 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3352 /** specify the ciphers to be used by the SSL */
3353 int SSL_set_cipher_list(SSL *s, const char *str)
3355 STACK_OF(SSL_CIPHER) *sk;
3356 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3361 sk = ssl_create_cipher_list(s->ctx, sc->tls13_ciphersuites,
3362 &sc->cipher_list, &sc->cipher_list_by_id, str,
3364 /* see comment in SSL_CTX_set_cipher_list */
3367 else if (cipher_list_tls12_num(sk) == 0) {
3368 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3374 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
3377 STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
3378 const SSL_CIPHER *c;
3380 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3386 || sc->peer_ciphers == NULL
3391 clntsk = sc->peer_ciphers;
3392 srvrsk = SSL_get_ciphers(s);
3393 if (clntsk == NULL || srvrsk == NULL)
3396 if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
3399 for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
3402 c = sk_SSL_CIPHER_value(clntsk, i);
3403 if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
3406 n = OPENSSL_strnlen(c->name, size);
3413 memcpy(p, c->name, n);
3423 * Return the requested servername (SNI) value. Note that the behaviour varies
3425 * - whether this is called by the client or the server,
3426 * - if we are before or during/after the handshake,
3427 * - if a resumption or normal handshake is being attempted/has occurred
3428 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
3430 * Note that only the host_name type is defined (RFC 3546).
3432 const char *SSL_get_servername(const SSL *s, const int type)
3434 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3441 * If we don't know if we are the client or the server yet then we assume
3444 server = sc->handshake_func == NULL ? 0 : sc->server;
3446 if (type != TLSEXT_NAMETYPE_host_name)
3452 * In TLSv1.3 on the server SNI is not associated with the session
3453 * but in TLSv1.2 or below it is.
3455 * Before the handshake:
3458 * During/after the handshake (TLSv1.2 or below resumption occurred):
3459 * - If a servername was accepted by the server in the original
3460 * handshake then it will return that servername, or NULL otherwise.
3462 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3463 * - The function will return the servername requested by the client in
3464 * this handshake or NULL if none was requested.
3466 if (sc->hit && !SSL_CONNECTION_IS_TLS13(sc))
3467 return sc->session->ext.hostname;
3472 * Before the handshake:
3473 * - If a servername has been set via a call to
3474 * SSL_set_tlsext_host_name() then it will return that servername
3475 * - If one has not been set, but a TLSv1.2 resumption is being
3476 * attempted and the session from the original handshake had a
3477 * servername accepted by the server then it will return that
3479 * - Otherwise it returns NULL
3481 * During/after the handshake (TLSv1.2 or below resumption occurred):
3482 * - If the session from the original handshake had a servername accepted
3483 * by the server then it will return that servername.
3484 * - Otherwise it returns the servername set via
3485 * SSL_set_tlsext_host_name() (or NULL if it was not called).
3487 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3488 * - It will return the servername set via SSL_set_tlsext_host_name()
3489 * (or NULL if it was not called).
3491 if (SSL_in_before(s)) {
3492 if (sc->ext.hostname == NULL
3493 && sc->session != NULL
3494 && sc->session->ssl_version != TLS1_3_VERSION)
3495 return sc->session->ext.hostname;
3497 if (!SSL_CONNECTION_IS_TLS13(sc) && sc->hit
3498 && sc->session->ext.hostname != NULL)
3499 return sc->session->ext.hostname;
3503 return sc->ext.hostname;
3506 int SSL_get_servername_type(const SSL *s)
3508 if (SSL_get_servername(s, TLSEXT_NAMETYPE_host_name) != NULL)
3509 return TLSEXT_NAMETYPE_host_name;
3514 * SSL_select_next_proto implements the standard protocol selection. It is
3515 * expected that this function is called from the callback set by
3516 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
3517 * vector of 8-bit, length prefixed byte strings. The length byte itself is
3518 * not included in the length. A byte string of length 0 is invalid. No byte
3519 * string may be truncated. The current, but experimental algorithm for
3520 * selecting the protocol is: 1) If the server doesn't support NPN then this
3521 * is indicated to the callback. In this case, the client application has to
3522 * abort the connection or have a default application level protocol. 2) If
3523 * the server supports NPN, but advertises an empty list then the client
3524 * selects the first protocol in its list, but indicates via the API that this
3525 * fallback case was enacted. 3) Otherwise, the client finds the first
3526 * protocol in the server's list that it supports and selects this protocol.
3527 * This is because it's assumed that the server has better information about
3528 * which protocol a client should use. 4) If the client doesn't support any
3529 * of the server's advertised protocols, then this is treated the same as
3530 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
3531 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
3533 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
3534 const unsigned char *server,
3535 unsigned int server_len,
3536 const unsigned char *client, unsigned int client_len)
3539 const unsigned char *result;
3540 int status = OPENSSL_NPN_UNSUPPORTED;
3543 * For each protocol in server preference order, see if we support it.
3545 for (i = 0; i < server_len;) {
3546 for (j = 0; j < client_len;) {
3547 if (server[i] == client[j] &&
3548 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
3549 /* We found a match */
3550 result = &server[i];
3551 status = OPENSSL_NPN_NEGOTIATED;
3561 /* There's no overlap between our protocols and the server's list. */
3563 status = OPENSSL_NPN_NO_OVERLAP;
3566 *out = (unsigned char *)result + 1;
3567 *outlen = result[0];
3571 #ifndef OPENSSL_NO_NEXTPROTONEG
3573 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
3574 * client's requested protocol for this connection and returns 0. If the
3575 * client didn't request any protocol, then *data is set to NULL. Note that
3576 * the client can request any protocol it chooses. The value returned from
3577 * this function need not be a member of the list of supported protocols
3578 * provided by the callback.
3580 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
3583 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3586 /* We have no other way to indicate error */
3592 *data = sc->ext.npn;
3593 if (*data == NULL) {
3596 *len = (unsigned int)sc->ext.npn_len;
3601 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
3602 * a TLS server needs a list of supported protocols for Next Protocol
3603 * Negotiation. The returned list must be in wire format. The list is
3604 * returned by setting |out| to point to it and |outlen| to its length. This
3605 * memory will not be modified, but one should assume that the SSL* keeps a
3606 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
3607 * wishes to advertise. Otherwise, no such extension will be included in the
3610 void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
3611 SSL_CTX_npn_advertised_cb_func cb,
3614 if (IS_QUIC_CTX(ctx))
3615 /* NPN not allowed for QUIC */
3618 ctx->ext.npn_advertised_cb = cb;
3619 ctx->ext.npn_advertised_cb_arg = arg;
3623 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
3624 * client needs to select a protocol from the server's provided list. |out|
3625 * must be set to point to the selected protocol (which may be within |in|).
3626 * The length of the protocol name must be written into |outlen|. The
3627 * server's advertised protocols are provided in |in| and |inlen|. The
3628 * callback can assume that |in| is syntactically valid. The client must
3629 * select a protocol. It is fatal to the connection if this callback returns
3630 * a value other than SSL_TLSEXT_ERR_OK.
3632 void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
3633 SSL_CTX_npn_select_cb_func cb,
3636 if (IS_QUIC_CTX(ctx))
3637 /* NPN not allowed for QUIC */
3640 ctx->ext.npn_select_cb = cb;
3641 ctx->ext.npn_select_cb_arg = arg;
3645 static int alpn_value_ok(const unsigned char *protos, unsigned int protos_len)
3649 if (protos_len < 2 || protos == NULL)
3652 for (idx = 0; idx < protos_len; idx += protos[idx] + 1) {
3653 if (protos[idx] == 0)
3656 return idx == protos_len;
3659 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
3660 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3661 * length-prefixed strings). Returns 0 on success.
3663 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
3664 unsigned int protos_len)
3666 unsigned char *alpn;
3668 if (protos_len == 0 || protos == NULL) {
3669 OPENSSL_free(ctx->ext.alpn);
3670 ctx->ext.alpn = NULL;
3671 ctx->ext.alpn_len = 0;
3674 /* Not valid per RFC */
3675 if (!alpn_value_ok(protos, protos_len))
3678 alpn = OPENSSL_memdup(protos, protos_len);
3681 OPENSSL_free(ctx->ext.alpn);
3682 ctx->ext.alpn = alpn;
3683 ctx->ext.alpn_len = protos_len;
3689 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
3690 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3691 * length-prefixed strings). Returns 0 on success.
3693 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
3694 unsigned int protos_len)
3696 unsigned char *alpn;
3697 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
3702 if (protos_len == 0 || protos == NULL) {
3703 OPENSSL_free(sc->ext.alpn);
3704 sc->ext.alpn = NULL;
3705 sc->ext.alpn_len = 0;
3708 /* Not valid per RFC */
3709 if (!alpn_value_ok(protos, protos_len))
3712 alpn = OPENSSL_memdup(protos, protos_len);
3715 OPENSSL_free(sc->ext.alpn);
3716 sc->ext.alpn = alpn;
3717 sc->ext.alpn_len = protos_len;
3723 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3724 * called during ClientHello processing in order to select an ALPN protocol
3725 * from the client's list of offered protocols.
3727 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
3728 SSL_CTX_alpn_select_cb_func cb,
3731 ctx->ext.alpn_select_cb = cb;
3732 ctx->ext.alpn_select_cb_arg = arg;
3736 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3737 * On return it sets |*data| to point to |*len| bytes of protocol name
3738 * (not including the leading length-prefix byte). If the server didn't
3739 * respond with a negotiated protocol then |*len| will be zero.
3741 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
3744 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
3747 /* We have no other way to indicate error */
3753 *data = sc->s3.alpn_selected;
3757 *len = (unsigned int)sc->s3.alpn_selected_len;
3760 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
3761 const char *label, size_t llen,
3762 const unsigned char *context, size_t contextlen,
3765 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3770 if (sc->session == NULL
3771 || (sc->version < TLS1_VERSION && sc->version != DTLS1_BAD_VER))
3774 return sc->ssl.method->ssl3_enc->export_keying_material(sc, out, olen, label,
3780 int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
3781 const char *label, size_t llen,
3782 const unsigned char *context,
3785 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3790 if (sc->version != TLS1_3_VERSION)
3793 return tls13_export_keying_material_early(sc, out, olen, label, llen,
3794 context, contextlen);
3797 static unsigned long ssl_session_hash(const SSL_SESSION *a)
3799 const unsigned char *session_id = a->session_id;
3801 unsigned char tmp_storage[4];
3803 if (a->session_id_length < sizeof(tmp_storage)) {
3804 memset(tmp_storage, 0, sizeof(tmp_storage));
3805 memcpy(tmp_storage, a->session_id, a->session_id_length);
3806 session_id = tmp_storage;
3810 ((unsigned long)session_id[0]) |
3811 ((unsigned long)session_id[1] << 8L) |
3812 ((unsigned long)session_id[2] << 16L) |
3813 ((unsigned long)session_id[3] << 24L);
3818 * NB: If this function (or indeed the hash function which uses a sort of
3819 * coarser function than this one) is changed, ensure
3820 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3821 * being able to construct an SSL_SESSION that will collide with any existing
3822 * session with a matching session ID.
3824 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
3826 if (a->ssl_version != b->ssl_version)
3828 if (a->session_id_length != b->session_id_length)
3830 return memcmp(a->session_id, b->session_id, a->session_id_length);
3834 * These wrapper functions should remain rather than redeclaring
3835 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3836 * variable. The reason is that the functions aren't static, they're exposed
3840 SSL_CTX *SSL_CTX_new_ex(OSSL_LIB_CTX *libctx, const char *propq,
3841 const SSL_METHOD *meth)
3843 SSL_CTX *ret = NULL;
3844 #ifndef OPENSSL_NO_COMP_ALG
3849 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_METHOD_PASSED);
3853 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
3856 /* Doing this for the run once effect */
3857 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3858 ERR_raise(ERR_LIB_SSL, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
3862 ret = OPENSSL_zalloc(sizeof(*ret));
3866 /* Init the reference counting before any call to SSL_CTX_free */
3867 if (!CRYPTO_NEW_REF(&ret->references, 1)) {
3872 ret->lock = CRYPTO_THREAD_lock_new();
3873 if (ret->lock == NULL) {
3874 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3878 #ifdef TSAN_REQUIRES_LOCKING
3879 ret->tsan_lock = CRYPTO_THREAD_lock_new();
3880 if (ret->tsan_lock == NULL) {
3881 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3886 ret->libctx = libctx;
3887 if (propq != NULL) {
3888 ret->propq = OPENSSL_strdup(propq);
3889 if (ret->propq == NULL)
3894 ret->min_proto_version = 0;
3895 ret->max_proto_version = 0;
3896 ret->mode = SSL_MODE_AUTO_RETRY;
3897 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
3898 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
3899 /* We take the system default. */
3900 ret->session_timeout = meth->get_timeout();
3901 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
3902 ret->verify_mode = SSL_VERIFY_NONE;
3904 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
3905 if (ret->sessions == NULL) {
3906 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3909 ret->cert_store = X509_STORE_new();
3910 if (ret->cert_store == NULL) {
3911 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3914 #ifndef OPENSSL_NO_CT
3915 ret->ctlog_store = CTLOG_STORE_new_ex(libctx, propq);
3916 if (ret->ctlog_store == NULL) {
3917 ERR_raise(ERR_LIB_SSL, ERR_R_CT_LIB);
3922 /* initialize cipher/digest methods table */
3923 if (!ssl_load_ciphers(ret)) {
3924 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3928 if (!ssl_load_groups(ret)) {
3929 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3933 /* load provider sigalgs */
3934 if (!ssl_load_sigalgs(ret)) {
3935 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3939 /* initialise sig algs */
3940 if (!ssl_setup_sigalgs(ret)) {
3941 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3945 if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites())) {
3946 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3950 if ((ret->cert = ssl_cert_new(SSL_PKEY_NUM + ret->sigalg_list_len)) == NULL) {
3951 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3955 if (!ssl_create_cipher_list(ret,
3956 ret->tls13_ciphersuites,
3957 &ret->cipher_list, &ret->cipher_list_by_id,
3958 OSSL_default_cipher_list(), ret->cert)
3959 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
3960 ERR_raise(ERR_LIB_SSL, SSL_R_LIBRARY_HAS_NO_CIPHERS);
3964 ret->param = X509_VERIFY_PARAM_new();
3965 if (ret->param == NULL) {
3966 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3971 * If these aren't available from the provider we'll get NULL returns.
3972 * That's fine but will cause errors later if SSLv3 is negotiated
3974 ret->md5 = ssl_evp_md_fetch(libctx, NID_md5, propq);
3975 ret->sha1 = ssl_evp_md_fetch(libctx, NID_sha1, propq);
3977 if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL) {
3978 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3982 if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL) {
3983 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3987 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) {
3988 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3992 if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
3995 /* No compression for DTLS */
3996 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
3997 ret->comp_methods = SSL_COMP_get_compression_methods();
3999 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
4000 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
4002 /* Setup RFC5077 ticket keys */
4003 if ((RAND_bytes_ex(libctx, ret->ext.tick_key_name,
4004 sizeof(ret->ext.tick_key_name), 0) <= 0)
4005 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_hmac_key,
4006 sizeof(ret->ext.secure->tick_hmac_key), 0) <= 0)
4007 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_aes_key,
4008 sizeof(ret->ext.secure->tick_aes_key), 0) <= 0))
4009 ret->options |= SSL_OP_NO_TICKET;
4011 if (RAND_priv_bytes_ex(libctx, ret->ext.cookie_hmac_key,
4012 sizeof(ret->ext.cookie_hmac_key), 0) <= 0) {
4013 ERR_raise(ERR_LIB_SSL, ERR_R_RAND_LIB);
4017 #ifndef OPENSSL_NO_SRP
4018 if (!ssl_ctx_srp_ctx_init_intern(ret)) {
4019 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
4023 #ifndef OPENSSL_NO_ENGINE
4024 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
4025 # define eng_strx(x) #x
4026 # define eng_str(x) eng_strx(x)
4027 /* Use specific client engine automatically... ignore errors */
4030 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
4033 ENGINE_load_builtin_engines();
4034 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
4036 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
4042 #ifndef OPENSSL_NO_COMP_ALG
4044 * Set the default order: brotli, zlib, zstd
4045 * Including only those enabled algorithms
4047 memset(ret->cert_comp_prefs, 0, sizeof(ret->cert_comp_prefs));
4049 if (ossl_comp_has_alg(TLSEXT_comp_cert_brotli))
4050 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_brotli;
4051 if (ossl_comp_has_alg(TLSEXT_comp_cert_zlib))
4052 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zlib;
4053 if (ossl_comp_has_alg(TLSEXT_comp_cert_zstd))
4054 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zstd;
4057 * Disable compression by default to prevent CRIME. Applications can
4058 * re-enable compression by configuring
4059 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
4060 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
4061 * middlebox compatibility by default. This may be disabled by default in
4062 * a later OpenSSL version.
4064 ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
4066 ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
4069 * We cannot usefully set a default max_early_data here (which gets
4070 * propagated in SSL_new(), for the following reason: setting the
4071 * SSL field causes tls_construct_stoc_early_data() to tell the
4072 * client that early data will be accepted when constructing a TLS 1.3
4073 * session ticket, and the client will accordingly send us early data
4074 * when using that ticket (if the client has early data to send).
4075 * However, in order for the early data to actually be consumed by
4076 * the application, the application must also have calls to
4077 * SSL_read_early_data(); otherwise we'll just skip past the early data
4078 * and ignore it. So, since the application must add calls to
4079 * SSL_read_early_data(), we also require them to add
4080 * calls to SSL_CTX_set_max_early_data() in order to use early data,
4081 * eliminating the bandwidth-wasting early data in the case described
4084 ret->max_early_data = 0;
4087 * Default recv_max_early_data is a fully loaded single record. Could be
4088 * split across multiple records in practice. We set this differently to
4089 * max_early_data so that, in the default case, we do not advertise any
4090 * support for early_data, but if a client were to send us some (e.g.
4091 * because of an old, stale ticket) then we will tolerate it and skip over
4094 ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
4096 /* By default we send two session tickets automatically in TLSv1.3 */
4097 ret->num_tickets = 2;
4099 ssl_ctx_system_config(ret);
4107 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
4109 return SSL_CTX_new_ex(NULL, NULL, meth);
4112 int SSL_CTX_up_ref(SSL_CTX *ctx)
4116 if (CRYPTO_UP_REF(&ctx->references, &i) <= 0)
4119 REF_PRINT_COUNT("SSL_CTX", ctx);
4120 REF_ASSERT_ISNT(i < 2);
4121 return ((i > 1) ? 1 : 0);
4124 void SSL_CTX_free(SSL_CTX *a)
4132 CRYPTO_DOWN_REF(&a->references, &i);
4133 REF_PRINT_COUNT("SSL_CTX", a);
4136 REF_ASSERT_ISNT(i < 0);
4138 X509_VERIFY_PARAM_free(a->param);
4139 dane_ctx_final(&a->dane);
4142 * Free internal session cache. However: the remove_cb() may reference
4143 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
4144 * after the sessions were flushed.
4145 * As the ex_data handling routines might also touch the session cache,
4146 * the most secure solution seems to be: empty (flush) the cache, then
4147 * free ex_data, then finally free the cache.
4148 * (See ticket [openssl.org #212].)
4150 if (a->sessions != NULL)
4151 SSL_CTX_flush_sessions(a, 0);
4153 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
4154 lh_SSL_SESSION_free(a->sessions);
4155 X509_STORE_free(a->cert_store);
4156 #ifndef OPENSSL_NO_CT
4157 CTLOG_STORE_free(a->ctlog_store);
4159 sk_SSL_CIPHER_free(a->cipher_list);
4160 sk_SSL_CIPHER_free(a->cipher_list_by_id);
4161 sk_SSL_CIPHER_free(a->tls13_ciphersuites);
4162 ssl_cert_free(a->cert);
4163 sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
4164 sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
4165 OSSL_STACK_OF_X509_free(a->extra_certs);
4166 a->comp_methods = NULL;
4167 #ifndef OPENSSL_NO_SRTP
4168 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
4170 #ifndef OPENSSL_NO_SRP
4171 ssl_ctx_srp_ctx_free_intern(a);
4173 #ifndef OPENSSL_NO_ENGINE
4174 tls_engine_finish(a->client_cert_engine);
4177 OPENSSL_free(a->ext.ecpointformats);
4178 OPENSSL_free(a->ext.supportedgroups);
4179 OPENSSL_free(a->ext.supported_groups_default);
4180 OPENSSL_free(a->ext.alpn);
4181 OPENSSL_secure_free(a->ext.secure);
4183 ssl_evp_md_free(a->md5);
4184 ssl_evp_md_free(a->sha1);
4186 for (j = 0; j < SSL_ENC_NUM_IDX; j++)
4187 ssl_evp_cipher_free(a->ssl_cipher_methods[j]);
4188 for (j = 0; j < SSL_MD_NUM_IDX; j++)
4189 ssl_evp_md_free(a->ssl_digest_methods[j]);
4190 for (j = 0; j < a->group_list_len; j++) {
4191 OPENSSL_free(a->group_list[j].tlsname);
4192 OPENSSL_free(a->group_list[j].realname);
4193 OPENSSL_free(a->group_list[j].algorithm);
4195 OPENSSL_free(a->group_list);
4196 for (j = 0; j < a->sigalg_list_len; j++) {
4197 OPENSSL_free(a->sigalg_list[j].name);
4198 OPENSSL_free(a->sigalg_list[j].sigalg_name);
4199 OPENSSL_free(a->sigalg_list[j].sigalg_oid);
4200 OPENSSL_free(a->sigalg_list[j].sig_name);
4201 OPENSSL_free(a->sigalg_list[j].sig_oid);
4202 OPENSSL_free(a->sigalg_list[j].hash_name);
4203 OPENSSL_free(a->sigalg_list[j].hash_oid);
4204 OPENSSL_free(a->sigalg_list[j].keytype);
4205 OPENSSL_free(a->sigalg_list[j].keytype_oid);
4207 OPENSSL_free(a->sigalg_list);
4208 OPENSSL_free(a->ssl_cert_info);
4210 OPENSSL_free(a->sigalg_lookup_cache);
4211 OPENSSL_free(a->tls12_sigalgs);
4213 OPENSSL_free(a->client_cert_type);
4214 OPENSSL_free(a->server_cert_type);
4216 CRYPTO_THREAD_lock_free(a->lock);
4217 CRYPTO_FREE_REF(&a->references);
4218 #ifdef TSAN_REQUIRES_LOCKING
4219 CRYPTO_THREAD_lock_free(a->tsan_lock);
4222 OPENSSL_free(a->propq);
4223 #ifndef OPENSSL_NO_QLOG
4224 OPENSSL_free(a->qlog_title);
4230 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
4232 ctx->default_passwd_callback = cb;
4235 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
4237 ctx->default_passwd_callback_userdata = u;
4240 pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
4242 return ctx->default_passwd_callback;
4245 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
4247 return ctx->default_passwd_callback_userdata;
4250 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
4252 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4257 sc->default_passwd_callback = cb;
4260 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
4262 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4267 sc->default_passwd_callback_userdata = u;
4270 pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
4272 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4277 return sc->default_passwd_callback;
4280 void *SSL_get_default_passwd_cb_userdata(SSL *s)
4282 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4287 return sc->default_passwd_callback_userdata;
4290 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
4291 int (*cb) (X509_STORE_CTX *, void *),
4294 ctx->app_verify_callback = cb;
4295 ctx->app_verify_arg = arg;
4298 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
4299 int (*cb) (int, X509_STORE_CTX *))
4301 ctx->verify_mode = mode;
4302 ctx->default_verify_callback = cb;
4305 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
4307 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
4310 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
4312 ssl_cert_set_cert_cb(c->cert, cb, arg);
4315 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
4317 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4322 ssl_cert_set_cert_cb(sc->cert, cb, arg);
4325 void ssl_set_masks(SSL_CONNECTION *s)
4328 uint32_t *pvalid = s->s3.tmp.valid_flags;
4329 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
4330 unsigned long mask_k, mask_a;
4331 int have_ecc_cert, ecdsa_ok;
4336 dh_tmp = (c->dh_tmp != NULL
4337 || c->dh_tmp_cb != NULL
4340 rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4341 rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4342 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
4343 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
4347 OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
4348 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
4350 #ifndef OPENSSL_NO_GOST
4351 if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
4352 mask_k |= SSL_kGOST | SSL_kGOST18;
4353 mask_a |= SSL_aGOST12;
4355 if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
4356 mask_k |= SSL_kGOST | SSL_kGOST18;
4357 mask_a |= SSL_aGOST12;
4359 if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
4360 mask_k |= SSL_kGOST;
4361 mask_a |= SSL_aGOST01;
4372 * If we only have an RSA-PSS certificate allow RSA authentication
4373 * if TLS 1.2 and peer supports it.
4376 if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
4377 && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
4378 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION))
4385 mask_a |= SSL_aNULL;
4388 * You can do anything with an RPK key, since there's no cert to restrict it
4389 * But we need to check for private keys
4391 if (pvalid[SSL_PKEY_RSA] & CERT_PKEY_RPK) {
4395 if (pvalid[SSL_PKEY_ECC] & CERT_PKEY_RPK)
4396 mask_a |= SSL_aECDSA;
4397 if (TLS1_get_version(&s->ssl) == TLS1_2_VERSION) {
4398 if (pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_RPK)
4400 if (pvalid[SSL_PKEY_ED25519] & CERT_PKEY_RPK
4401 || pvalid[SSL_PKEY_ED448] & CERT_PKEY_RPK)
4402 mask_a |= SSL_aECDSA;
4406 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
4407 * depending on the key usage extension.
4409 if (have_ecc_cert) {
4411 ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
4412 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
4413 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
4416 mask_a |= SSL_aECDSA;
4418 /* Allow Ed25519 for TLS 1.2 if peer supports it */
4419 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
4420 && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
4421 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4422 mask_a |= SSL_aECDSA;
4424 /* Allow Ed448 for TLS 1.2 if peer supports it */
4425 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
4426 && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
4427 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4428 mask_a |= SSL_aECDSA;
4430 mask_k |= SSL_kECDHE;
4432 #ifndef OPENSSL_NO_PSK
4435 if (mask_k & SSL_kRSA)
4436 mask_k |= SSL_kRSAPSK;
4437 if (mask_k & SSL_kDHE)
4438 mask_k |= SSL_kDHEPSK;
4439 if (mask_k & SSL_kECDHE)
4440 mask_k |= SSL_kECDHEPSK;
4443 s->s3.tmp.mask_k = mask_k;
4444 s->s3.tmp.mask_a = mask_a;
4447 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CONNECTION *s)
4449 if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
4450 /* key usage, if present, must allow signing */
4451 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
4452 ERR_raise(ERR_LIB_SSL, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
4456 return 1; /* all checks are ok */
4459 int ssl_get_server_cert_serverinfo(SSL_CONNECTION *s,
4460 const unsigned char **serverinfo,
4461 size_t *serverinfo_length)
4463 CERT_PKEY *cpk = s->s3.tmp.cert;
4464 *serverinfo_length = 0;
4466 if (cpk == NULL || cpk->serverinfo == NULL)
4469 *serverinfo = cpk->serverinfo;
4470 *serverinfo_length = cpk->serverinfo_length;
4474 void ssl_update_cache(SSL_CONNECTION *s, int mode)
4479 * If the session_id_length is 0, we are not supposed to cache it, and it
4480 * would be rather hard to do anyway :-). Also if the session has already
4481 * been marked as not_resumable we should not cache it for later reuse.
4483 if (s->session->session_id_length == 0 || s->session->not_resumable)
4487 * If sid_ctx_length is 0 there is no specific application context
4488 * associated with this session, so when we try to resume it and
4489 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
4490 * indication that this is actually a session for the proper application
4491 * context, and the *handshake* will fail, not just the resumption attempt.
4492 * Do not cache (on the server) these sessions that are not resumable
4493 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
4495 if (s->server && s->session->sid_ctx_length == 0
4496 && (s->verify_mode & SSL_VERIFY_PEER) != 0)
4499 i = s->session_ctx->session_cache_mode;
4501 && (!s->hit || SSL_CONNECTION_IS_TLS13(s))) {
4503 * Add the session to the internal cache. In server side TLSv1.3 we
4504 * normally don't do this because by default it's a full stateless ticket
4505 * with only a dummy session id so there is no reason to cache it,
4507 * - we are doing early_data, in which case we cache so that we can
4509 * - the application has set a remove_session_cb so needs to know about
4510 * session timeout events
4511 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
4513 if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
4514 && (!SSL_CONNECTION_IS_TLS13(s)
4516 || (s->max_early_data > 0
4517 && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
4518 || s->session_ctx->remove_session_cb != NULL
4519 || (s->options & SSL_OP_NO_TICKET) != 0))
4520 SSL_CTX_add_session(s->session_ctx, s->session);
4523 * Add the session to the external cache. We do this even in server side
4524 * TLSv1.3 without early data because some applications just want to
4525 * know about the creation of a session and aren't doing a full cache.
4527 if (s->session_ctx->new_session_cb != NULL) {
4528 SSL_SESSION_up_ref(s->session);
4529 if (!s->session_ctx->new_session_cb(SSL_CONNECTION_GET_SSL(s),
4531 SSL_SESSION_free(s->session);
4535 /* auto flush every 255 connections */
4536 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
4537 TSAN_QUALIFIER int *stat;
4539 if (mode & SSL_SESS_CACHE_CLIENT)
4540 stat = &s->session_ctx->stats.sess_connect_good;
4542 stat = &s->session_ctx->stats.sess_accept_good;
4543 if ((ssl_tsan_load(s->session_ctx, stat) & 0xff) == 0xff)
4544 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
4548 const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
4553 const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
4558 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
4561 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4563 /* Not allowed for QUIC */
4565 || (s->type != SSL_TYPE_SSL_CONNECTION && s->method != meth)
4566 || (s->type == SSL_TYPE_SSL_CONNECTION && IS_QUIC_METHOD(meth)))
4569 if (s->method != meth) {
4570 const SSL_METHOD *sm = s->method;
4571 int (*hf) (SSL *) = sc->handshake_func;
4573 if (sm->version == meth->version)
4578 ret = s->method->ssl_init(s);
4581 if (hf == sm->ssl_connect)
4582 sc->handshake_func = meth->ssl_connect;
4583 else if (hf == sm->ssl_accept)
4584 sc->handshake_func = meth->ssl_accept;
4589 int SSL_get_error(const SSL *s, int i)
4591 return ossl_ssl_get_error(s, i, /*check_err=*/1);
4594 int ossl_ssl_get_error(const SSL *s, int i, int check_err)
4599 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4602 return SSL_ERROR_NONE;
4604 #ifndef OPENSSL_NO_QUIC
4606 reason = ossl_quic_get_error(s, i);
4607 if (reason != SSL_ERROR_NONE)
4613 return SSL_ERROR_SSL;
4616 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
4617 * where we do encode the error
4619 if (check_err && (l = ERR_peek_error()) != 0) {
4620 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
4621 return SSL_ERROR_SYSCALL;
4623 return SSL_ERROR_SSL;
4626 #ifndef OPENSSL_NO_QUIC
4630 if (SSL_want_read(s)) {
4631 bio = SSL_get_rbio(s);
4632 if (BIO_should_read(bio))
4633 return SSL_ERROR_WANT_READ;
4634 else if (BIO_should_write(bio))
4636 * This one doesn't make too much sense ... We never try to
4637 * write to the rbio, and an application program where rbio and
4638 * wbio are separate couldn't even know what it should wait for.
4639 * However if we ever set s->rwstate incorrectly (so that we
4640 * have SSL_want_read(s) instead of SSL_want_write(s)) and rbio
4641 * and wbio *are* the same, this test works around that bug; so
4642 * it might be safer to keep it.
4644 return SSL_ERROR_WANT_WRITE;
4645 else if (BIO_should_io_special(bio)) {
4646 reason = BIO_get_retry_reason(bio);
4647 if (reason == BIO_RR_CONNECT)
4648 return SSL_ERROR_WANT_CONNECT;
4649 else if (reason == BIO_RR_ACCEPT)
4650 return SSL_ERROR_WANT_ACCEPT;
4652 return SSL_ERROR_SYSCALL; /* unknown */
4656 if (SSL_want_write(s)) {
4658 * Access wbio directly - in order to use the buffered bio if
4662 if (BIO_should_write(bio))
4663 return SSL_ERROR_WANT_WRITE;
4664 else if (BIO_should_read(bio))
4666 * See above (SSL_want_read(s) with BIO_should_write(bio))
4668 return SSL_ERROR_WANT_READ;
4669 else if (BIO_should_io_special(bio)) {
4670 reason = BIO_get_retry_reason(bio);
4671 if (reason == BIO_RR_CONNECT)
4672 return SSL_ERROR_WANT_CONNECT;
4673 else if (reason == BIO_RR_ACCEPT)
4674 return SSL_ERROR_WANT_ACCEPT;
4676 return SSL_ERROR_SYSCALL;
4681 if (SSL_want_x509_lookup(s))
4682 return SSL_ERROR_WANT_X509_LOOKUP;
4683 if (SSL_want_retry_verify(s))
4684 return SSL_ERROR_WANT_RETRY_VERIFY;
4685 if (SSL_want_async(s))
4686 return SSL_ERROR_WANT_ASYNC;
4687 if (SSL_want_async_job(s))
4688 return SSL_ERROR_WANT_ASYNC_JOB;
4689 if (SSL_want_client_hello_cb(s))
4690 return SSL_ERROR_WANT_CLIENT_HELLO_CB;
4692 if ((sc->shutdown & SSL_RECEIVED_SHUTDOWN) &&
4693 (sc->s3.warn_alert == SSL_AD_CLOSE_NOTIFY))
4694 return SSL_ERROR_ZERO_RETURN;
4696 return SSL_ERROR_SYSCALL;
4699 static int ssl_do_handshake_intern(void *vargs)
4701 struct ssl_async_args *args = (struct ssl_async_args *)vargs;
4703 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4708 return sc->handshake_func(s);
4711 int SSL_do_handshake(SSL *s)
4714 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4716 #ifndef OPENSSL_NO_QUIC
4718 return ossl_quic_do_handshake(s);
4721 if (sc->handshake_func == NULL) {
4722 ERR_raise(ERR_LIB_SSL, SSL_R_CONNECTION_TYPE_NOT_SET);
4726 ossl_statem_check_finish_init(sc, -1);
4728 s->method->ssl_renegotiate_check(s, 0);
4730 if (SSL_in_init(s) || SSL_in_before(s)) {
4731 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
4732 struct ssl_async_args args;
4734 memset(&args, 0, sizeof(args));
4737 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
4739 ret = sc->handshake_func(s);
4745 void SSL_set_accept_state(SSL *s)
4747 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4749 #ifndef OPENSSL_NO_QUIC
4751 ossl_quic_set_accept_state(s);
4758 ossl_statem_clear(sc);
4759 sc->handshake_func = s->method->ssl_accept;
4760 /* Ignore return value. Its a void public API function */
4761 RECORD_LAYER_reset(&sc->rlayer);
4764 void SSL_set_connect_state(SSL *s)
4766 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4768 #ifndef OPENSSL_NO_QUIC
4770 ossl_quic_set_connect_state(s);
4777 ossl_statem_clear(sc);
4778 sc->handshake_func = s->method->ssl_connect;
4779 /* Ignore return value. Its a void public API function */
4780 RECORD_LAYER_reset(&sc->rlayer);
4783 int ssl_undefined_function(SSL *s)
4785 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4789 int ssl_undefined_void_function(void)
4791 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4795 int ssl_undefined_const_function(const SSL *s)
4800 const char *ssl_protocol_to_string(int version)
4804 case TLS1_3_VERSION:
4807 case TLS1_2_VERSION:
4810 case TLS1_1_VERSION:
4825 case DTLS1_2_VERSION:
4833 const char *SSL_get_version(const SSL *s)
4835 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4837 #ifndef OPENSSL_NO_QUIC
4838 /* We only support QUICv1 - so if its QUIC its QUICv1 */
4839 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
4846 return ssl_protocol_to_string(sc->version);
4849 __owur int SSL_get_handshake_rtt(const SSL *s, uint64_t *rtt)
4851 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4855 if (sc->ts_msg_write.t <= 0 || sc->ts_msg_read.t <= 0)
4856 return 0; /* data not (yet) available */
4857 if (sc->ts_msg_read.t < sc->ts_msg_write.t)
4860 *rtt = ossl_time2us(ossl_time_subtract(sc->ts_msg_read, sc->ts_msg_write));
4864 static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
4866 STACK_OF(X509_NAME) *sk;
4875 if ((sk = sk_X509_NAME_new_null()) == NULL)
4877 for (i = 0; i < sk_X509_NAME_num(src); i++) {
4878 xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
4880 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4883 if (sk_X509_NAME_insert(sk, xn, i) == 0) {
4885 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4894 SSL *SSL_dup(SSL *s)
4898 /* TODO(QUIC FUTURE): Add a SSL_METHOD function for duplication */
4899 SSL_CONNECTION *retsc;
4900 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4905 /* If we're not quiescent, just up_ref! */
4906 if (!SSL_in_init(s) || !SSL_in_before(s)) {
4907 CRYPTO_UP_REF(&s->references, &i);
4912 * Otherwise, copy configuration state, and session if set.
4914 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
4916 if ((retsc = SSL_CONNECTION_FROM_SSL_ONLY(ret)) == NULL)
4919 if (sc->session != NULL) {
4921 * Arranges to share the same session via up_ref. This "copies"
4922 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4924 if (!SSL_copy_session_id(ret, s))
4928 * No session has been established yet, so we have to expect that
4929 * s->cert or ret->cert will be changed later -- they should not both
4930 * point to the same object, and thus we can't use
4931 * SSL_copy_session_id.
4933 if (!SSL_set_ssl_method(ret, s->method))
4936 if (sc->cert != NULL) {
4937 ssl_cert_free(retsc->cert);
4938 retsc->cert = ssl_cert_dup(sc->cert);
4939 if (retsc->cert == NULL)
4943 if (!SSL_set_session_id_context(ret, sc->sid_ctx,
4944 (int)sc->sid_ctx_length))
4948 if (!ssl_dane_dup(retsc, sc))
4950 retsc->version = sc->version;
4951 retsc->options = sc->options;
4952 retsc->min_proto_version = sc->min_proto_version;
4953 retsc->max_proto_version = sc->max_proto_version;
4954 retsc->mode = sc->mode;
4955 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
4956 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
4957 retsc->msg_callback = sc->msg_callback;
4958 retsc->msg_callback_arg = sc->msg_callback_arg;
4959 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
4960 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
4961 retsc->generate_session_id = sc->generate_session_id;
4963 SSL_set_info_callback(ret, SSL_get_info_callback(s));
4965 /* copy app data, a little dangerous perhaps */
4966 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
4969 retsc->server = sc->server;
4970 if (sc->handshake_func) {
4972 SSL_set_accept_state(ret);
4974 SSL_set_connect_state(ret);
4976 retsc->shutdown = sc->shutdown;
4977 retsc->hit = sc->hit;
4979 retsc->default_passwd_callback = sc->default_passwd_callback;
4980 retsc->default_passwd_callback_userdata = sc->default_passwd_callback_userdata;
4982 X509_VERIFY_PARAM_inherit(retsc->param, sc->param);
4984 /* dup the cipher_list and cipher_list_by_id stacks */
4985 if (sc->cipher_list != NULL) {
4986 if ((retsc->cipher_list = sk_SSL_CIPHER_dup(sc->cipher_list)) == NULL)
4989 if (sc->cipher_list_by_id != NULL)
4990 if ((retsc->cipher_list_by_id = sk_SSL_CIPHER_dup(sc->cipher_list_by_id))
4994 /* Dup the client_CA list */
4995 if (!dup_ca_names(&retsc->ca_names, sc->ca_names)
4996 || !dup_ca_names(&retsc->client_ca_names, sc->client_ca_names))
5006 X509 *SSL_get_certificate(const SSL *s)
5008 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5013 if (sc->cert != NULL)
5014 return sc->cert->key->x509;
5019 EVP_PKEY *SSL_get_privatekey(const SSL *s)
5021 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5026 if (sc->cert != NULL)
5027 return sc->cert->key->privatekey;
5032 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
5034 if (ctx->cert != NULL)
5035 return ctx->cert->key->x509;
5040 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
5042 if (ctx->cert != NULL)
5043 return ctx->cert->key->privatekey;
5048 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
5050 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5055 if ((sc->session != NULL) && (sc->session->cipher != NULL))
5056 return sc->session->cipher;
5060 const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
5062 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5067 return sc->s3.tmp.new_cipher;
5070 const COMP_METHOD *SSL_get_current_compression(const SSL *s)
5072 #ifndef OPENSSL_NO_COMP
5073 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5078 return sc->rlayer.wrlmethod->get_compression(sc->rlayer.wrl);
5084 const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
5086 #ifndef OPENSSL_NO_COMP
5087 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5092 return sc->rlayer.rrlmethod->get_compression(sc->rlayer.rrl);
5098 int ssl_init_wbio_buffer(SSL_CONNECTION *s)
5102 if (s->bbio != NULL) {
5103 /* Already buffered. */
5107 bbio = BIO_new(BIO_f_buffer());
5108 if (bbio == NULL || BIO_set_read_buffer_size(bbio, 1) <= 0) {
5110 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
5114 s->wbio = BIO_push(bbio, s->wbio);
5116 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5121 int ssl_free_wbio_buffer(SSL_CONNECTION *s)
5123 /* callers ensure s is never null */
5124 if (s->bbio == NULL)
5127 s->wbio = BIO_pop(s->wbio);
5128 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5136 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
5138 ctx->quiet_shutdown = mode;
5141 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
5143 return ctx->quiet_shutdown;
5146 void SSL_set_quiet_shutdown(SSL *s, int mode)
5148 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5150 /* Not supported with QUIC */
5154 sc->quiet_shutdown = mode;
5157 int SSL_get_quiet_shutdown(const SSL *s)
5159 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5161 /* Not supported with QUIC */
5165 return sc->quiet_shutdown;
5168 void SSL_set_shutdown(SSL *s, int mode)
5170 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5172 /* Not supported with QUIC */
5176 sc->shutdown = mode;
5179 int SSL_get_shutdown(const SSL *s)
5181 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5183 #ifndef OPENSSL_NO_QUIC
5184 /* QUIC: Just indicate whether the connection was shutdown cleanly. */
5186 return ossl_quic_get_shutdown(s);
5192 return sc->shutdown;
5195 int SSL_version(const SSL *s)
5197 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5199 #ifndef OPENSSL_NO_QUIC
5200 /* We only support QUICv1 - so if its QUIC its QUICv1 */
5201 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
5202 return OSSL_QUIC1_VERSION;
5210 int SSL_client_version(const SSL *s)
5212 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5214 #ifndef OPENSSL_NO_QUIC
5215 /* We only support QUICv1 - so if its QUIC its QUICv1 */
5216 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
5217 return OSSL_QUIC1_VERSION;
5222 return sc->client_version;
5225 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
5230 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
5233 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
5235 /* TODO(QUIC FUTURE): Add support for QUIC */
5239 if (ssl->ctx == ctx)
5242 ctx = sc->session_ctx;
5243 new_cert = ssl_cert_dup(ctx->cert);
5244 if (new_cert == NULL) {
5248 if (!custom_exts_copy_flags(&new_cert->custext, &sc->cert->custext)) {
5249 ssl_cert_free(new_cert);
5253 ssl_cert_free(sc->cert);
5254 sc->cert = new_cert;
5257 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
5258 * so setter APIs must prevent invalid lengths from entering the system.
5260 if (!ossl_assert(sc->sid_ctx_length <= sizeof(sc->sid_ctx)))
5264 * If the session ID context matches that of the parent SSL_CTX,
5265 * inherit it from the new SSL_CTX as well. If however the context does
5266 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
5267 * leave it unchanged.
5269 if ((ssl->ctx != NULL) &&
5270 (sc->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
5271 (memcmp(sc->sid_ctx, ssl->ctx->sid_ctx, sc->sid_ctx_length) == 0)) {
5272 sc->sid_ctx_length = ctx->sid_ctx_length;
5273 memcpy(&sc->sid_ctx, &ctx->sid_ctx, sizeof(sc->sid_ctx));
5276 SSL_CTX_up_ref(ctx);
5277 SSL_CTX_free(ssl->ctx); /* decrement reference count */
5283 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
5285 return X509_STORE_set_default_paths_ex(ctx->cert_store, ctx->libctx,
5289 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
5291 X509_LOOKUP *lookup;
5293 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
5297 /* We ignore errors, in case the directory doesn't exist */
5300 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
5307 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
5309 X509_LOOKUP *lookup;
5311 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
5315 /* We ignore errors, in case the file doesn't exist */
5318 X509_LOOKUP_load_file_ex(lookup, NULL, X509_FILETYPE_DEFAULT, ctx->libctx,
5326 int SSL_CTX_set_default_verify_store(SSL_CTX *ctx)
5328 X509_LOOKUP *lookup;
5330 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_store());
5334 /* We ignore errors, in case the directory doesn't exist */
5337 X509_LOOKUP_add_store_ex(lookup, NULL, ctx->libctx, ctx->propq);
5344 int SSL_CTX_load_verify_file(SSL_CTX *ctx, const char *CAfile)
5346 return X509_STORE_load_file_ex(ctx->cert_store, CAfile, ctx->libctx,
5350 int SSL_CTX_load_verify_dir(SSL_CTX *ctx, const char *CApath)
5352 return X509_STORE_load_path(ctx->cert_store, CApath);
5355 int SSL_CTX_load_verify_store(SSL_CTX *ctx, const char *CAstore)
5357 return X509_STORE_load_store_ex(ctx->cert_store, CAstore, ctx->libctx,
5361 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
5364 if (CAfile == NULL && CApath == NULL)
5366 if (CAfile != NULL && !SSL_CTX_load_verify_file(ctx, CAfile))
5368 if (CApath != NULL && !SSL_CTX_load_verify_dir(ctx, CApath))
5373 void SSL_set_info_callback(SSL *ssl,
5374 void (*cb) (const SSL *ssl, int type, int val))
5376 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5381 sc->info_callback = cb;
5385 * One compiler (Diab DCC) doesn't like argument names in returned function
5388 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
5391 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5396 return sc->info_callback;
5399 void SSL_set_verify_result(SSL *ssl, long arg)
5401 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5406 sc->verify_result = arg;
5409 long SSL_get_verify_result(const SSL *ssl)
5411 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5416 return sc->verify_result;
5419 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
5421 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5427 return sizeof(sc->s3.client_random);
5428 if (outlen > sizeof(sc->s3.client_random))
5429 outlen = sizeof(sc->s3.client_random);
5430 memcpy(out, sc->s3.client_random, outlen);
5434 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
5436 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5442 return sizeof(sc->s3.server_random);
5443 if (outlen > sizeof(sc->s3.server_random))
5444 outlen = sizeof(sc->s3.server_random);
5445 memcpy(out, sc->s3.server_random, outlen);
5449 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
5450 unsigned char *out, size_t outlen)
5453 return session->master_key_length;
5454 if (outlen > session->master_key_length)
5455 outlen = session->master_key_length;
5456 memcpy(out, session->master_key, outlen);
5460 int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
5463 if (len > sizeof(sess->master_key))
5466 memcpy(sess->master_key, in, len);
5467 sess->master_key_length = len;
5472 int SSL_set_ex_data(SSL *s, int idx, void *arg)
5474 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5477 void *SSL_get_ex_data(const SSL *s, int idx)
5479 return CRYPTO_get_ex_data(&s->ex_data, idx);
5482 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
5484 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5487 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
5489 return CRYPTO_get_ex_data(&s->ex_data, idx);
5492 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
5494 return ctx->cert_store;
5497 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
5499 X509_STORE_free(ctx->cert_store);
5500 ctx->cert_store = store;
5503 void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
5506 X509_STORE_up_ref(store);
5507 SSL_CTX_set_cert_store(ctx, store);
5510 int SSL_want(const SSL *s)
5512 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5514 #ifndef OPENSSL_NO_QUIC
5516 return ossl_quic_want(s);
5525 #ifndef OPENSSL_NO_PSK
5526 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
5528 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5529 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5532 OPENSSL_free(ctx->cert->psk_identity_hint);
5533 if (identity_hint != NULL) {
5534 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5535 if (ctx->cert->psk_identity_hint == NULL)
5538 ctx->cert->psk_identity_hint = NULL;
5542 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
5544 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5549 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5550 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5553 OPENSSL_free(sc->cert->psk_identity_hint);
5554 if (identity_hint != NULL) {
5555 sc->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5556 if (sc->cert->psk_identity_hint == NULL)
5559 sc->cert->psk_identity_hint = NULL;
5563 const char *SSL_get_psk_identity_hint(const SSL *s)
5565 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5567 if (sc == NULL || sc->session == NULL)
5570 return sc->session->psk_identity_hint;
5573 const char *SSL_get_psk_identity(const SSL *s)
5575 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5577 if (sc == NULL || sc->session == NULL)
5580 return sc->session->psk_identity;
5583 void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
5585 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5590 sc->psk_client_callback = cb;
5593 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
5595 ctx->psk_client_callback = cb;
5598 void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
5600 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5605 sc->psk_server_callback = cb;
5608 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
5610 ctx->psk_server_callback = cb;
5614 void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
5616 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5621 sc->psk_find_session_cb = cb;
5624 void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
5625 SSL_psk_find_session_cb_func cb)
5627 ctx->psk_find_session_cb = cb;
5630 void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
5632 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5637 sc->psk_use_session_cb = cb;
5640 void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
5641 SSL_psk_use_session_cb_func cb)
5643 ctx->psk_use_session_cb = cb;
5646 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
5647 void (*cb) (int write_p, int version,
5648 int content_type, const void *buf,
5649 size_t len, SSL *ssl, void *arg))
5651 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5654 void SSL_set_msg_callback(SSL *ssl,
5655 void (*cb) (int write_p, int version,
5656 int content_type, const void *buf,
5657 size_t len, SSL *ssl, void *arg))
5659 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5662 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
5663 int (*cb) (SSL *ssl,
5667 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5668 (void (*)(void))cb);
5671 void SSL_set_not_resumable_session_callback(SSL *ssl,
5672 int (*cb) (SSL *ssl,
5673 int is_forward_secure))
5675 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5676 (void (*)(void))cb);
5679 void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
5680 size_t (*cb) (SSL *ssl, int type,
5681 size_t len, void *arg))
5683 ctx->record_padding_cb = cb;
5686 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
5688 ctx->record_padding_arg = arg;
5691 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
5693 return ctx->record_padding_arg;
5696 int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
5698 if (IS_QUIC_CTX(ctx) && block_size > 1)
5701 /* block size of 0 or 1 is basically no padding */
5702 if (block_size == 1)
5703 ctx->block_padding = 0;
5704 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5705 ctx->block_padding = block_size;
5711 int SSL_set_record_padding_callback(SSL *ssl,
5712 size_t (*cb) (SSL *ssl, int type,
5713 size_t len, void *arg))
5716 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
5721 b = SSL_get_wbio(ssl);
5722 if (b == NULL || !BIO_get_ktls_send(b)) {
5723 sc->rlayer.record_padding_cb = cb;
5729 void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
5731 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5736 sc->rlayer.record_padding_arg = arg;
5739 void *SSL_get_record_padding_callback_arg(const SSL *ssl)
5741 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5746 return sc->rlayer.record_padding_arg;
5749 int SSL_set_block_padding(SSL *ssl, size_t block_size)
5751 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5753 if (sc == NULL || (IS_QUIC(ssl) && block_size > 1))
5756 /* block size of 0 or 1 is basically no padding */
5757 if (block_size == 1)
5758 sc->rlayer.block_padding = 0;
5759 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5760 sc->rlayer.block_padding = block_size;
5766 int SSL_set_num_tickets(SSL *s, size_t num_tickets)
5768 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5773 sc->num_tickets = num_tickets;
5778 size_t SSL_get_num_tickets(const SSL *s)
5780 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5785 return sc->num_tickets;
5788 int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
5790 ctx->num_tickets = num_tickets;
5795 size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
5797 return ctx->num_tickets;
5800 /* Retrieve handshake hashes */
5801 int ssl_handshake_hash(SSL_CONNECTION *s,
5802 unsigned char *out, size_t outlen,
5805 EVP_MD_CTX *ctx = NULL;
5806 EVP_MD_CTX *hdgst = s->s3.handshake_dgst;
5807 int hashleni = EVP_MD_CTX_get_size(hdgst);
5810 if (hashleni < 0 || (size_t)hashleni > outlen) {
5811 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5815 ctx = EVP_MD_CTX_new();
5817 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5821 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
5822 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
5823 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5827 *hashlen = hashleni;
5831 EVP_MD_CTX_free(ctx);
5835 int SSL_session_reused(const SSL *s)
5837 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5845 int SSL_is_server(const SSL *s)
5847 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5855 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
5856 void SSL_set_debug(SSL *s, int debug)
5858 /* Old function was do-nothing anyway... */
5864 void SSL_set_security_level(SSL *s, int level)
5866 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5871 sc->cert->sec_level = level;
5874 int SSL_get_security_level(const SSL *s)
5876 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5881 return sc->cert->sec_level;
5884 void SSL_set_security_callback(SSL *s,
5885 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5886 int op, int bits, int nid,
5887 void *other, void *ex))
5889 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5894 sc->cert->sec_cb = cb;
5897 int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
5898 const SSL_CTX *ctx, int op,
5899 int bits, int nid, void *other,
5901 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5906 return sc->cert->sec_cb;
5909 void SSL_set0_security_ex_data(SSL *s, void *ex)
5911 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5916 sc->cert->sec_ex = ex;
5919 void *SSL_get0_security_ex_data(const SSL *s)
5921 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5926 return sc->cert->sec_ex;
5929 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
5931 ctx->cert->sec_level = level;
5934 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
5936 return ctx->cert->sec_level;
5939 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
5940 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5941 int op, int bits, int nid,
5942 void *other, void *ex))
5944 ctx->cert->sec_cb = cb;
5947 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
5953 return ctx->cert->sec_cb;
5956 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
5958 ctx->cert->sec_ex = ex;
5961 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
5963 return ctx->cert->sec_ex;
5966 uint64_t SSL_CTX_get_options(const SSL_CTX *ctx)
5968 return ctx->options;
5971 uint64_t SSL_get_options(const SSL *s)
5973 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5975 #ifndef OPENSSL_NO_QUIC
5977 return ossl_quic_get_options(s);
5986 uint64_t SSL_CTX_set_options(SSL_CTX *ctx, uint64_t op)
5988 return ctx->options |= op;
5991 uint64_t SSL_set_options(SSL *s, uint64_t op)
5994 OSSL_PARAM options[2], *opts = options;
5996 #ifndef OPENSSL_NO_QUIC
5998 return ossl_quic_set_options(s, op);
6001 sc = SSL_CONNECTION_FROM_SSL(s);
6007 *opts++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS,
6009 *opts = OSSL_PARAM_construct_end();
6011 /* Ignore return value */
6012 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
6013 sc->rlayer.wrlmethod->set_options(sc->rlayer.wrl, options);
6018 uint64_t SSL_CTX_clear_options(SSL_CTX *ctx, uint64_t op)
6020 return ctx->options &= ~op;
6023 uint64_t SSL_clear_options(SSL *s, uint64_t op)
6025 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6026 OSSL_PARAM options[2], *opts = options;
6028 #ifndef OPENSSL_NO_QUIC
6030 return ossl_quic_clear_options(s, op);
6038 *opts++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS,
6040 *opts = OSSL_PARAM_construct_end();
6042 /* Ignore return value */
6043 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
6044 sc->rlayer.wrlmethod->set_options(sc->rlayer.wrl, options);
6049 STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
6051 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6056 return sc->verified_chain;
6059 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
6061 #ifndef OPENSSL_NO_CT
6064 * Moves SCTs from the |src| stack to the |dst| stack.
6065 * The source of each SCT will be set to |origin|.
6066 * If |dst| points to a NULL pointer, a new stack will be created and owned by
6068 * Returns the number of SCTs moved, or a negative integer if an error occurs.
6069 * The |dst| stack is created and possibly partially populated even in case
6070 * of error, likewise the |src| stack may be left in an intermediate state.
6072 static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
6073 sct_source_t origin)
6079 *dst = sk_SCT_new_null();
6081 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6086 while ((sct = sk_SCT_pop(src)) != NULL) {
6087 if (SCT_set_source(sct, origin) != 1)
6090 if (!sk_SCT_push(*dst, sct))
6102 * Look for data collected during ServerHello and parse if found.
6103 * Returns the number of SCTs extracted.
6105 static int ct_extract_tls_extension_scts(SSL_CONNECTION *s)
6107 int scts_extracted = 0;
6109 if (s->ext.scts != NULL) {
6110 const unsigned char *p = s->ext.scts;
6111 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
6113 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
6115 SCT_LIST_free(scts);
6118 return scts_extracted;
6122 * Checks for an OCSP response and then attempts to extract any SCTs found if it
6123 * contains an SCT X509 extension. They will be stored in |s->scts|.
6125 * - The number of SCTs extracted, assuming an OCSP response exists.
6126 * - 0 if no OCSP response exists or it contains no SCTs.
6127 * - A negative integer if an error occurs.
6129 static int ct_extract_ocsp_response_scts(SSL_CONNECTION *s)
6131 # ifndef OPENSSL_NO_OCSP
6132 int scts_extracted = 0;
6133 const unsigned char *p;
6134 OCSP_BASICRESP *br = NULL;
6135 OCSP_RESPONSE *rsp = NULL;
6136 STACK_OF(SCT) *scts = NULL;
6139 if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
6142 p = s->ext.ocsp.resp;
6143 rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
6147 br = OCSP_response_get1_basic(rsp);
6151 for (i = 0; i < OCSP_resp_count(br); ++i) {
6152 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
6158 OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
6160 ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
6161 if (scts_extracted < 0)
6165 SCT_LIST_free(scts);
6166 OCSP_BASICRESP_free(br);
6167 OCSP_RESPONSE_free(rsp);
6168 return scts_extracted;
6170 /* Behave as if no OCSP response exists */
6176 * Attempts to extract SCTs from the peer certificate.
6177 * Return the number of SCTs extracted, or a negative integer if an error
6180 static int ct_extract_x509v3_extension_scts(SSL_CONNECTION *s)
6182 int scts_extracted = 0;
6183 X509 *cert = s->session != NULL ? s->session->peer : NULL;
6186 STACK_OF(SCT) *scts =
6187 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
6190 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
6192 SCT_LIST_free(scts);
6195 return scts_extracted;
6199 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
6200 * response (if it exists) and X509v3 extensions in the certificate.
6201 * Returns NULL if an error occurs.
6203 const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
6205 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6210 if (!sc->scts_parsed) {
6211 if (ct_extract_tls_extension_scts(sc) < 0 ||
6212 ct_extract_ocsp_response_scts(sc) < 0 ||
6213 ct_extract_x509v3_extension_scts(sc) < 0)
6216 sc->scts_parsed = 1;
6223 static int ct_permissive(const CT_POLICY_EVAL_CTX *ctx,
6224 const STACK_OF(SCT) *scts, void *unused_arg)
6229 static int ct_strict(const CT_POLICY_EVAL_CTX *ctx,
6230 const STACK_OF(SCT) *scts, void *unused_arg)
6232 int count = scts != NULL ? sk_SCT_num(scts) : 0;
6235 for (i = 0; i < count; ++i) {
6236 SCT *sct = sk_SCT_value(scts, i);
6237 int status = SCT_get_validation_status(sct);
6239 if (status == SCT_VALIDATION_STATUS_VALID)
6242 ERR_raise(ERR_LIB_SSL, SSL_R_NO_VALID_SCTS);
6246 int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
6249 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6255 * Since code exists that uses the custom extension handler for CT, look
6256 * for this and throw an error if they have already registered to use CT.
6258 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
6259 TLSEXT_TYPE_signed_certificate_timestamp))
6261 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
6265 if (callback != NULL) {
6267 * If we are validating CT, then we MUST accept SCTs served via OCSP
6269 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
6273 sc->ct_validation_callback = callback;
6274 sc->ct_validation_callback_arg = arg;
6279 int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
6280 ssl_ct_validation_cb callback, void *arg)
6283 * Since code exists that uses the custom extension handler for CT, look for
6284 * this and throw an error if they have already registered to use CT.
6286 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
6287 TLSEXT_TYPE_signed_certificate_timestamp))
6289 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
6293 ctx->ct_validation_callback = callback;
6294 ctx->ct_validation_callback_arg = arg;
6298 int SSL_ct_is_enabled(const SSL *s)
6300 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6305 return sc->ct_validation_callback != NULL;
6308 int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
6310 return ctx->ct_validation_callback != NULL;
6313 int ssl_validate_ct(SSL_CONNECTION *s)
6316 X509 *cert = s->session != NULL ? s->session->peer : NULL;
6318 SSL_DANE *dane = &s->dane;
6319 CT_POLICY_EVAL_CTX *ctx = NULL;
6320 const STACK_OF(SCT) *scts;
6323 * If no callback is set, the peer is anonymous, or its chain is invalid,
6324 * skip SCT validation - just return success. Applications that continue
6325 * handshakes without certificates, with unverified chains, or pinned leaf
6326 * certificates are outside the scope of the WebPKI and CT.
6328 * The above exclusions notwithstanding the vast majority of peers will
6329 * have rather ordinary certificate chains validated by typical
6330 * applications that perform certificate verification and therefore will
6331 * process SCTs when enabled.
6333 if (s->ct_validation_callback == NULL || cert == NULL ||
6334 s->verify_result != X509_V_OK ||
6335 s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
6339 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
6340 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
6342 if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
6343 switch (dane->mtlsa->usage) {
6344 case DANETLS_USAGE_DANE_TA:
6345 case DANETLS_USAGE_DANE_EE:
6350 ctx = CT_POLICY_EVAL_CTX_new_ex(SSL_CONNECTION_GET_CTX(s)->libctx,
6351 SSL_CONNECTION_GET_CTX(s)->propq);
6353 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CT_LIB);
6357 issuer = sk_X509_value(s->verified_chain, 1);
6358 CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
6359 CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
6360 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx,
6361 SSL_CONNECTION_GET_CTX(s)->ctlog_store);
6362 CT_POLICY_EVAL_CTX_set_time(
6363 ctx, (uint64_t)SSL_SESSION_get_time(s->session) * 1000);
6365 scts = SSL_get0_peer_scts(SSL_CONNECTION_GET_SSL(s));
6368 * This function returns success (> 0) only when all the SCTs are valid, 0
6369 * when some are invalid, and < 0 on various internal errors (out of
6370 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
6371 * reason to abort the handshake, that decision is up to the callback.
6372 * Therefore, we error out only in the unexpected case that the return
6373 * value is negative.
6375 * XXX: One might well argue that the return value of this function is an
6376 * unfortunate design choice. Its job is only to determine the validation
6377 * status of each of the provided SCTs. So long as it correctly separates
6378 * the wheat from the chaff it should return success. Failure in this case
6379 * ought to correspond to an inability to carry out its duties.
6381 if (SCT_LIST_validate(scts, ctx) < 0) {
6382 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_SCT_VERIFICATION_FAILED);
6386 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
6388 ret = 0; /* This function returns 0 on failure */
6390 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_CALLBACK_FAILED);
6393 CT_POLICY_EVAL_CTX_free(ctx);
6395 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
6396 * failure return code here. Also the application may wish the complete
6397 * the handshake, and then disconnect cleanly at a higher layer, after
6398 * checking the verification status of the completed connection.
6400 * We therefore force a certificate verification failure which will be
6401 * visible via SSL_get_verify_result() and cached as part of any resumed
6404 * Note: the permissive callback is for information gathering only, always
6405 * returns success, and does not affect verification status. Only the
6406 * strict callback or a custom application-specified callback can trigger
6407 * connection failure or record a verification error.
6410 s->verify_result = X509_V_ERR_NO_VALID_SCTS;
6414 int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
6416 switch (validation_mode) {
6418 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6420 case SSL_CT_VALIDATION_PERMISSIVE:
6421 return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
6422 case SSL_CT_VALIDATION_STRICT:
6423 return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
6427 int SSL_enable_ct(SSL *s, int validation_mode)
6429 switch (validation_mode) {
6431 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6433 case SSL_CT_VALIDATION_PERMISSIVE:
6434 return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
6435 case SSL_CT_VALIDATION_STRICT:
6436 return SSL_set_ct_validation_callback(s, ct_strict, NULL);
6440 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
6442 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
6445 int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
6447 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
6450 void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE *logs)
6452 CTLOG_STORE_free(ctx->ctlog_store);
6453 ctx->ctlog_store = logs;
6456 const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
6458 return ctx->ctlog_store;
6461 #endif /* OPENSSL_NO_CT */
6463 void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
6466 c->client_hello_cb = cb;
6467 c->client_hello_cb_arg = arg;
6470 int SSL_client_hello_isv2(SSL *s)
6472 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6477 if (sc->clienthello == NULL)
6479 return sc->clienthello->isv2;
6482 unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
6484 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6489 if (sc->clienthello == NULL)
6491 return sc->clienthello->legacy_version;
6494 size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out)
6496 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6501 if (sc->clienthello == NULL)
6504 *out = sc->clienthello->random;
6505 return SSL3_RANDOM_SIZE;
6508 size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
6510 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6515 if (sc->clienthello == NULL)
6518 *out = sc->clienthello->session_id;
6519 return sc->clienthello->session_id_len;
6522 size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
6524 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6529 if (sc->clienthello == NULL)
6532 *out = PACKET_data(&sc->clienthello->ciphersuites);
6533 return PACKET_remaining(&sc->clienthello->ciphersuites);
6536 size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
6538 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6543 if (sc->clienthello == NULL)
6546 *out = sc->clienthello->compressions;
6547 return sc->clienthello->compressions_len;
6550 int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
6555 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6560 if (sc->clienthello == NULL || out == NULL || outlen == NULL)
6562 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6563 ext = sc->clienthello->pre_proc_exts + i;
6572 if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL)
6574 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6575 ext = sc->clienthello->pre_proc_exts + i;
6577 if (ext->received_order >= num)
6579 present[ext->received_order] = ext->type;
6586 OPENSSL_free(present);
6590 int SSL_client_hello_get_extension_order(SSL *s, uint16_t *exts, size_t *num_exts)
6594 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6599 if (sc->clienthello == NULL || num_exts == NULL)
6601 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6602 ext = sc->clienthello->pre_proc_exts + i;
6614 if (*num_exts < num)
6616 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6617 ext = sc->clienthello->pre_proc_exts + i;
6619 if (ext->received_order >= num)
6621 exts[ext->received_order] = ext->type;
6628 int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
6633 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6638 if (sc->clienthello == NULL)
6640 for (i = 0; i < sc->clienthello->pre_proc_exts_len; ++i) {
6641 r = sc->clienthello->pre_proc_exts + i;
6642 if (r->present && r->type == type) {
6644 *out = PACKET_data(&r->data);
6646 *outlen = PACKET_remaining(&r->data);
6653 int SSL_free_buffers(SSL *ssl)
6656 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
6663 return rl->rrlmethod->free_buffers(rl->rrl)
6664 && rl->wrlmethod->free_buffers(rl->wrl);
6667 int SSL_alloc_buffers(SSL *ssl)
6670 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6675 /* QUIC always has buffers allocated. */
6681 return rl->rrlmethod->alloc_buffers(rl->rrl)
6682 && rl->wrlmethod->alloc_buffers(rl->wrl);
6685 void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
6687 ctx->keylog_callback = cb;
6690 SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
6692 return ctx->keylog_callback;
6695 static int nss_keylog_int(const char *prefix,
6697 const uint8_t *parameter_1,
6698 size_t parameter_1_len,
6699 const uint8_t *parameter_2,
6700 size_t parameter_2_len)
6703 char *cursor = NULL;
6707 SSL_CTX *sctx = SSL_CONNECTION_GET_CTX(sc);
6709 if (sctx->keylog_callback == NULL)
6713 * Our output buffer will contain the following strings, rendered with
6714 * space characters in between, terminated by a NULL character: first the
6715 * prefix, then the first parameter, then the second parameter. The
6716 * meaning of each parameter depends on the specific key material being
6717 * logged. Note that the first and second parameters are encoded in
6718 * hexadecimal, so we need a buffer that is twice their lengths.
6720 prefix_len = strlen(prefix);
6721 out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
6722 if ((out = cursor = OPENSSL_malloc(out_len)) == NULL)
6725 strcpy(cursor, prefix);
6726 cursor += prefix_len;
6729 for (i = 0; i < parameter_1_len; i++) {
6730 sprintf(cursor, "%02x", parameter_1[i]);
6735 for (i = 0; i < parameter_2_len; i++) {
6736 sprintf(cursor, "%02x", parameter_2[i]);
6741 sctx->keylog_callback(SSL_CONNECTION_GET_SSL(sc), (const char *)out);
6742 OPENSSL_clear_free(out, out_len);
6747 int ssl_log_rsa_client_key_exchange(SSL_CONNECTION *sc,
6748 const uint8_t *encrypted_premaster,
6749 size_t encrypted_premaster_len,
6750 const uint8_t *premaster,
6751 size_t premaster_len)
6753 if (encrypted_premaster_len < 8) {
6754 SSLfatal(sc, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6758 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
6759 return nss_keylog_int("RSA",
6761 encrypted_premaster,
6767 int ssl_log_secret(SSL_CONNECTION *sc,
6769 const uint8_t *secret,
6772 return nss_keylog_int(label,
6774 sc->s3.client_random,
6780 #define SSLV2_CIPHER_LEN 3
6782 int ssl_cache_cipherlist(SSL_CONNECTION *s, PACKET *cipher_suites, int sslv2format)
6786 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6788 if (PACKET_remaining(cipher_suites) == 0) {
6789 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6793 if (PACKET_remaining(cipher_suites) % n != 0) {
6794 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6798 OPENSSL_free(s->s3.tmp.ciphers_raw);
6799 s->s3.tmp.ciphers_raw = NULL;
6800 s->s3.tmp.ciphers_rawlen = 0;
6803 size_t numciphers = PACKET_remaining(cipher_suites) / n;
6804 PACKET sslv2ciphers = *cipher_suites;
6805 unsigned int leadbyte;
6809 * We store the raw ciphers list in SSLv3+ format so we need to do some
6810 * preprocessing to convert the list first. If there are any SSLv2 only
6811 * ciphersuites with a non-zero leading byte then we are going to
6812 * slightly over allocate because we won't store those. But that isn't a
6815 raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
6816 s->s3.tmp.ciphers_raw = raw;
6818 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6821 for (s->s3.tmp.ciphers_rawlen = 0;
6822 PACKET_remaining(&sslv2ciphers) > 0;
6823 raw += TLS_CIPHER_LEN) {
6824 if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
6826 && !PACKET_copy_bytes(&sslv2ciphers, raw,
6829 && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
6830 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_PACKET);
6831 OPENSSL_free(s->s3.tmp.ciphers_raw);
6832 s->s3.tmp.ciphers_raw = NULL;
6833 s->s3.tmp.ciphers_rawlen = 0;
6837 s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN;
6839 } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw,
6840 &s->s3.tmp.ciphers_rawlen)) {
6841 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6847 int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
6848 int isv2format, STACK_OF(SSL_CIPHER) **sk,
6849 STACK_OF(SSL_CIPHER) **scsvs)
6852 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6857 if (!PACKET_buf_init(&pkt, bytes, len))
6859 return ossl_bytes_to_cipher_list(sc, &pkt, sk, scsvs, isv2format, 0);
6862 int ossl_bytes_to_cipher_list(SSL_CONNECTION *s, PACKET *cipher_suites,
6863 STACK_OF(SSL_CIPHER) **skp,
6864 STACK_OF(SSL_CIPHER) **scsvs_out,
6865 int sslv2format, int fatal)
6867 const SSL_CIPHER *c;
6868 STACK_OF(SSL_CIPHER) *sk = NULL;
6869 STACK_OF(SSL_CIPHER) *scsvs = NULL;
6871 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
6872 unsigned char cipher[SSLV2_CIPHER_LEN];
6874 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6876 if (PACKET_remaining(cipher_suites) == 0) {
6878 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6880 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHERS_SPECIFIED);
6884 if (PACKET_remaining(cipher_suites) % n != 0) {
6886 SSLfatal(s, SSL_AD_DECODE_ERROR,
6887 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6889 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6893 sk = sk_SSL_CIPHER_new_null();
6894 scsvs = sk_SSL_CIPHER_new_null();
6895 if (sk == NULL || scsvs == NULL) {
6897 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6899 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6903 while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
6905 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
6906 * first byte set to zero, while true SSLv2 ciphers have a non-zero
6907 * first byte. We don't support any true SSLv2 ciphers, so skip them.
6909 if (sslv2format && cipher[0] != '\0')
6912 /* For SSLv2-compat, ignore leading 0-byte. */
6913 c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
6915 if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
6916 (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
6918 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6920 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6925 if (PACKET_remaining(cipher_suites) > 0) {
6927 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_LENGTH);
6929 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
6936 sk_SSL_CIPHER_free(sk);
6937 if (scsvs_out != NULL)
6940 sk_SSL_CIPHER_free(scsvs);
6943 sk_SSL_CIPHER_free(sk);
6944 sk_SSL_CIPHER_free(scsvs);
6948 int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
6950 ctx->max_early_data = max_early_data;
6955 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
6957 return ctx->max_early_data;
6960 int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
6962 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
6967 sc->max_early_data = max_early_data;
6972 uint32_t SSL_get_max_early_data(const SSL *s)
6974 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6979 return sc->max_early_data;
6982 int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
6984 ctx->recv_max_early_data = recv_max_early_data;
6989 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
6991 return ctx->recv_max_early_data;
6994 int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
6996 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7001 sc->recv_max_early_data = recv_max_early_data;
7006 uint32_t SSL_get_recv_max_early_data(const SSL *s)
7008 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7013 return sc->recv_max_early_data;
7016 __owur unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION *sc)
7018 /* Return any active Max Fragment Len extension */
7019 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session))
7020 return GET_MAX_FRAGMENT_LENGTH(sc->session);
7022 /* return current SSL connection setting */
7023 return sc->max_send_fragment;
7026 __owur unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION *sc)
7028 /* Return a value regarding an active Max Fragment Len extension */
7029 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session)
7030 && sc->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(sc->session))
7031 return GET_MAX_FRAGMENT_LENGTH(sc->session);
7033 /* else limit |split_send_fragment| to current |max_send_fragment| */
7034 if (sc->split_send_fragment > sc->max_send_fragment)
7035 return sc->max_send_fragment;
7037 /* return current SSL connection setting */
7038 return sc->split_send_fragment;
7041 int SSL_stateless(SSL *s)
7044 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7049 /* Ensure there is no state left over from a previous invocation */
7055 sc->s3.flags |= TLS1_FLAGS_STATELESS;
7056 ret = SSL_accept(s);
7057 sc->s3.flags &= ~TLS1_FLAGS_STATELESS;
7059 if (ret > 0 && sc->ext.cookieok)
7062 if (sc->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(sc))
7068 void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
7070 ctx->pha_enabled = val;
7073 void SSL_set_post_handshake_auth(SSL *ssl, int val)
7075 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
7080 sc->pha_enabled = val;
7083 int SSL_verify_client_post_handshake(SSL *ssl)
7085 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
7087 #ifndef OPENSSL_NO_QUIC
7089 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
7097 if (!SSL_CONNECTION_IS_TLS13(sc)) {
7098 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
7102 ERR_raise(ERR_LIB_SSL, SSL_R_NOT_SERVER);
7106 if (!SSL_is_init_finished(ssl)) {
7107 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
7111 switch (sc->post_handshake_auth) {
7113 ERR_raise(ERR_LIB_SSL, SSL_R_EXTENSION_NOT_RECEIVED);
7116 case SSL_PHA_EXT_SENT:
7117 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
7119 case SSL_PHA_EXT_RECEIVED:
7121 case SSL_PHA_REQUEST_PENDING:
7122 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_PENDING);
7124 case SSL_PHA_REQUESTED:
7125 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_SENT);
7129 sc->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
7131 /* checks verify_mode and algorithm_auth */
7132 if (!send_certificate_request(sc)) {
7133 sc->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
7134 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CONFIG);
7138 ossl_statem_set_in_init(sc, 1);
7142 int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
7143 SSL_CTX_generate_session_ticket_fn gen_cb,
7144 SSL_CTX_decrypt_session_ticket_fn dec_cb,
7147 ctx->generate_ticket_cb = gen_cb;
7148 ctx->decrypt_ticket_cb = dec_cb;
7149 ctx->ticket_cb_data = arg;
7153 void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
7154 SSL_allow_early_data_cb_fn cb,
7157 ctx->allow_early_data_cb = cb;
7158 ctx->allow_early_data_cb_data = arg;
7161 void SSL_set_allow_early_data_cb(SSL *s,
7162 SSL_allow_early_data_cb_fn cb,
7165 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7170 sc->allow_early_data_cb = cb;
7171 sc->allow_early_data_cb_data = arg;
7174 const EVP_CIPHER *ssl_evp_cipher_fetch(OSSL_LIB_CTX *libctx,
7176 const char *properties)
7178 const EVP_CIPHER *ciph;
7180 ciph = tls_get_cipher_from_engine(nid);
7185 * If there is no engine cipher then we do an explicit fetch. This may fail
7186 * and that could be ok
7189 ciph = EVP_CIPHER_fetch(libctx, OBJ_nid2sn(nid), properties);
7195 int ssl_evp_cipher_up_ref(const EVP_CIPHER *cipher)
7197 /* Don't up-ref an implicit EVP_CIPHER */
7198 if (EVP_CIPHER_get0_provider(cipher) == NULL)
7202 * The cipher was explicitly fetched and therefore it is safe to cast
7205 return EVP_CIPHER_up_ref((EVP_CIPHER *)cipher);
7208 void ssl_evp_cipher_free(const EVP_CIPHER *cipher)
7213 if (EVP_CIPHER_get0_provider(cipher) != NULL) {
7215 * The cipher was explicitly fetched and therefore it is safe to cast
7218 EVP_CIPHER_free((EVP_CIPHER *)cipher);
7222 const EVP_MD *ssl_evp_md_fetch(OSSL_LIB_CTX *libctx,
7224 const char *properties)
7228 md = tls_get_digest_from_engine(nid);
7232 /* Otherwise we do an explicit fetch */
7234 md = EVP_MD_fetch(libctx, OBJ_nid2sn(nid), properties);
7239 int ssl_evp_md_up_ref(const EVP_MD *md)
7241 /* Don't up-ref an implicit EVP_MD */
7242 if (EVP_MD_get0_provider(md) == NULL)
7246 * The digest was explicitly fetched and therefore it is safe to cast
7249 return EVP_MD_up_ref((EVP_MD *)md);
7252 void ssl_evp_md_free(const EVP_MD *md)
7257 if (EVP_MD_get0_provider(md) != NULL) {
7259 * The digest was explicitly fetched and therefore it is safe to cast
7262 EVP_MD_free((EVP_MD *)md);
7266 int SSL_set0_tmp_dh_pkey(SSL *s, EVP_PKEY *dhpkey)
7268 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7273 if (!ssl_security(sc, SSL_SECOP_TMP_DH,
7274 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
7275 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
7278 EVP_PKEY_free(sc->cert->dh_tmp);
7279 sc->cert->dh_tmp = dhpkey;
7283 int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX *ctx, EVP_PKEY *dhpkey)
7285 if (!ssl_ctx_security(ctx, SSL_SECOP_TMP_DH,
7286 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
7287 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
7290 EVP_PKEY_free(ctx->cert->dh_tmp);
7291 ctx->cert->dh_tmp = dhpkey;
7295 /* QUIC-specific methods which are supported on QUIC connections only. */
7296 int SSL_handle_events(SSL *s)
7300 #ifndef OPENSSL_NO_QUIC
7302 return ossl_quic_handle_events(s);
7305 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7306 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc))
7308 * DTLSv1_handle_timeout returns 0 if the timer wasn't expired yet,
7309 * which we consider a success case. Theoretically DTLSv1_handle_timeout
7310 * can also return 0 if s is NULL or not a DTLS object, but we've
7311 * already ruled out those possibilities above, so this is not possible
7312 * here. Thus the only failure cases are where DTLSv1_handle_timeout
7315 return DTLSv1_handle_timeout(s) >= 0;
7320 int SSL_get_event_timeout(SSL *s, struct timeval *tv, int *is_infinite)
7324 #ifndef OPENSSL_NO_QUIC
7326 return ossl_quic_get_event_timeout(s, tv, is_infinite);
7329 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7330 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc)
7331 && DTLSv1_get_timeout(s, tv)) {
7336 tv->tv_sec = 1000000;
7342 int SSL_get_rpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7344 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7346 #ifndef OPENSSL_NO_QUIC
7348 return ossl_quic_get_rpoll_descriptor(s, desc);
7351 if (sc == NULL || sc->rbio == NULL)
7354 return BIO_get_rpoll_descriptor(sc->rbio, desc);
7357 int SSL_get_wpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7359 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7361 #ifndef OPENSSL_NO_QUIC
7363 return ossl_quic_get_wpoll_descriptor(s, desc);
7366 if (sc == NULL || sc->wbio == NULL)
7369 return BIO_get_wpoll_descriptor(sc->wbio, desc);
7372 int SSL_net_read_desired(SSL *s)
7374 #ifndef OPENSSL_NO_QUIC
7376 return SSL_want_read(s);
7378 return ossl_quic_get_net_read_desired(s);
7380 return SSL_want_read(s);
7384 int SSL_net_write_desired(SSL *s)
7386 #ifndef OPENSSL_NO_QUIC
7388 return SSL_want_write(s);
7390 return ossl_quic_get_net_write_desired(s);
7392 return SSL_want_write(s);
7396 int SSL_set_blocking_mode(SSL *s, int blocking)
7398 #ifndef OPENSSL_NO_QUIC
7402 return ossl_quic_conn_set_blocking_mode(s, blocking);
7408 int SSL_get_blocking_mode(SSL *s)
7410 #ifndef OPENSSL_NO_QUIC
7414 return ossl_quic_conn_get_blocking_mode(s);
7420 int SSL_set1_initial_peer_addr(SSL *s, const BIO_ADDR *peer_addr)
7422 #ifndef OPENSSL_NO_QUIC
7426 return ossl_quic_conn_set_initial_peer_addr(s, peer_addr);
7432 int SSL_shutdown_ex(SSL *ssl, uint64_t flags,
7433 const SSL_SHUTDOWN_EX_ARGS *args,
7436 #ifndef OPENSSL_NO_QUIC
7438 return SSL_shutdown(ssl);
7440 return ossl_quic_conn_shutdown(ssl, flags, args, args_len);
7442 return SSL_shutdown(ssl);
7446 int SSL_stream_conclude(SSL *ssl, uint64_t flags)
7448 #ifndef OPENSSL_NO_QUIC
7452 return ossl_quic_conn_stream_conclude(ssl);
7458 SSL *SSL_new_stream(SSL *s, uint64_t flags)
7460 #ifndef OPENSSL_NO_QUIC
7464 return ossl_quic_conn_stream_new(s, flags);
7470 SSL *SSL_get0_connection(SSL *s)
7472 #ifndef OPENSSL_NO_QUIC
7476 return ossl_quic_get0_connection(s);
7482 int SSL_is_connection(SSL *s)
7484 return SSL_get0_connection(s) == s;
7487 int SSL_get_stream_type(SSL *s)
7489 #ifndef OPENSSL_NO_QUIC
7491 return SSL_STREAM_TYPE_BIDI;
7493 return ossl_quic_get_stream_type(s);
7495 return SSL_STREAM_TYPE_BIDI;
7499 uint64_t SSL_get_stream_id(SSL *s)
7501 #ifndef OPENSSL_NO_QUIC
7505 return ossl_quic_get_stream_id(s);
7511 int SSL_is_stream_local(SSL *s)
7513 #ifndef OPENSSL_NO_QUIC
7517 return ossl_quic_is_stream_local(s);
7523 int SSL_set_default_stream_mode(SSL *s, uint32_t mode)
7525 #ifndef OPENSSL_NO_QUIC
7529 return ossl_quic_set_default_stream_mode(s, mode);
7535 int SSL_set_incoming_stream_policy(SSL *s, int policy, uint64_t aec)
7537 #ifndef OPENSSL_NO_QUIC
7541 return ossl_quic_set_incoming_stream_policy(s, policy, aec);
7547 SSL *SSL_accept_stream(SSL *s, uint64_t flags)
7549 #ifndef OPENSSL_NO_QUIC
7553 return ossl_quic_accept_stream(s, flags);
7559 size_t SSL_get_accept_stream_queue_len(SSL *s)
7561 #ifndef OPENSSL_NO_QUIC
7565 return ossl_quic_get_accept_stream_queue_len(s);
7571 int SSL_stream_reset(SSL *s,
7572 const SSL_STREAM_RESET_ARGS *args,
7575 #ifndef OPENSSL_NO_QUIC
7579 return ossl_quic_stream_reset(s, args, args_len);
7585 int SSL_get_stream_read_state(SSL *s)
7587 #ifndef OPENSSL_NO_QUIC
7589 return SSL_STREAM_STATE_NONE;
7591 return ossl_quic_get_stream_read_state(s);
7593 return SSL_STREAM_STATE_NONE;
7597 int SSL_get_stream_write_state(SSL *s)
7599 #ifndef OPENSSL_NO_QUIC
7601 return SSL_STREAM_STATE_NONE;
7603 return ossl_quic_get_stream_write_state(s);
7605 return SSL_STREAM_STATE_NONE;
7609 int SSL_get_stream_read_error_code(SSL *s, uint64_t *app_error_code)
7611 #ifndef OPENSSL_NO_QUIC
7615 return ossl_quic_get_stream_read_error_code(s, app_error_code);
7621 int SSL_get_stream_write_error_code(SSL *s, uint64_t *app_error_code)
7623 #ifndef OPENSSL_NO_QUIC
7627 return ossl_quic_get_stream_write_error_code(s, app_error_code);
7633 int SSL_get_conn_close_info(SSL *s, SSL_CONN_CLOSE_INFO *info,
7636 #ifndef OPENSSL_NO_QUIC
7640 return ossl_quic_get_conn_close_info(s, info, info_len);
7646 int SSL_get_value_uint(SSL *s, uint32_t class_, uint32_t id,
7649 #ifndef OPENSSL_NO_QUIC
7651 return ossl_quic_get_value_uint(s, class_, id, value);
7654 ERR_raise(ERR_LIB_SSL, SSL_R_UNSUPPORTED_PROTOCOL);
7658 int SSL_set_value_uint(SSL *s, uint32_t class_, uint32_t id,
7661 #ifndef OPENSSL_NO_QUIC
7663 return ossl_quic_set_value_uint(s, class_, id, value);
7666 ERR_raise(ERR_LIB_SSL, SSL_R_UNSUPPORTED_PROTOCOL);
7670 int SSL_add_expected_rpk(SSL *s, EVP_PKEY *rpk)
7672 unsigned char *data = NULL;
7673 SSL_DANE *dane = SSL_get0_dane(s);
7676 if (dane == NULL || dane->dctx == NULL)
7678 if ((ret = i2d_PUBKEY(rpk, &data)) <= 0)
7681 ret = SSL_dane_tlsa_add(s, DANETLS_USAGE_DANE_EE,
7682 DANETLS_SELECTOR_SPKI,
7683 DANETLS_MATCHING_FULL,
7684 data, (size_t)ret) > 0;
7689 EVP_PKEY *SSL_get0_peer_rpk(const SSL *s)
7691 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7693 if (sc == NULL || sc->session == NULL)
7695 return sc->session->peer_rpk;
7698 int SSL_get_negotiated_client_cert_type(const SSL *s)
7700 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7705 return sc->ext.client_cert_type;
7708 int SSL_get_negotiated_server_cert_type(const SSL *s)
7710 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7715 return sc->ext.server_cert_type;
7718 static int validate_cert_type(const unsigned char *val, size_t len)
7724 if (val == NULL && len == 0)
7727 if (val == NULL || len == 0)
7730 for (i = 0; i < len; i++) {
7732 case TLSEXT_cert_type_rpk:
7737 case TLSEXT_cert_type_x509:
7742 case TLSEXT_cert_type_pgp:
7743 case TLSEXT_cert_type_1609dot2:
7751 static int set_cert_type(unsigned char **cert_type,
7752 size_t *cert_type_len,
7753 const unsigned char *val,
7756 unsigned char *tmp = NULL;
7758 if (!validate_cert_type(val, len))
7761 if (val != NULL && (tmp = OPENSSL_memdup(val, len)) == NULL)
7764 OPENSSL_free(*cert_type);
7766 *cert_type_len = len;
7770 int SSL_set1_client_cert_type(SSL *s, const unsigned char *val, size_t len)
7772 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7774 return set_cert_type(&sc->client_cert_type, &sc->client_cert_type_len,
7778 int SSL_set1_server_cert_type(SSL *s, const unsigned char *val, size_t len)
7780 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7782 return set_cert_type(&sc->server_cert_type, &sc->server_cert_type_len,
7786 int SSL_CTX_set1_client_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7788 return set_cert_type(&ctx->client_cert_type, &ctx->client_cert_type_len,
7792 int SSL_CTX_set1_server_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7794 return set_cert_type(&ctx->server_cert_type, &ctx->server_cert_type_len,
7798 int SSL_get0_client_cert_type(const SSL *s, unsigned char **t, size_t *len)
7800 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7802 if (t == NULL || len == NULL)
7805 *t = sc->client_cert_type;
7806 *len = sc->client_cert_type_len;
7810 int SSL_get0_server_cert_type(const SSL *s, unsigned char **t, size_t *len)
7812 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7814 if (t == NULL || len == NULL)
7817 *t = sc->server_cert_type;
7818 *len = sc->server_cert_type_len;
7822 int SSL_CTX_get0_client_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7824 if (t == NULL || len == NULL)
7827 *t = ctx->client_cert_type;
7828 *len = ctx->client_cert_type_len;
7832 int SSL_CTX_get0_server_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7834 if (t == NULL || len == NULL)
7837 *t = ctx->server_cert_type;
7838 *len = ctx->server_cert_type_len;