2 * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 * Copyright 2005 Nokia. All rights reserved.
6 * Licensed under the Apache License 2.0 (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
13 #include "ssl_local.h"
14 #include "internal/e_os.h"
15 #include <openssl/objects.h>
16 #include <openssl/x509v3.h>
17 #include <openssl/rand.h>
18 #include <openssl/ocsp.h>
19 #include <openssl/dh.h>
20 #include <openssl/engine.h>
21 #include <openssl/async.h>
22 #include <openssl/ct.h>
23 #include <openssl/trace.h>
24 #include <openssl/core_names.h>
25 #include "internal/cryptlib.h"
26 #include "internal/nelem.h"
27 #include "internal/refcount.h"
28 #include "internal/ktls.h"
29 #include "quic/quic_local.h"
31 static int ssl_undefined_function_3(SSL_CONNECTION *sc, unsigned char *r,
32 unsigned char *s, size_t t, size_t *u)
34 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
37 static int ssl_undefined_function_4(SSL_CONNECTION *sc, int r)
39 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
42 static size_t ssl_undefined_function_5(SSL_CONNECTION *sc, const char *r,
43 size_t s, unsigned char *t)
45 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
48 static int ssl_undefined_function_6(int r)
50 return ssl_undefined_function(NULL);
53 static int ssl_undefined_function_7(SSL_CONNECTION *sc, unsigned char *r,
54 size_t s, const char *t, size_t u,
55 const unsigned char *v, size_t w, int x)
57 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
60 static int ssl_undefined_function_8(SSL_CONNECTION *sc)
62 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
65 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;
269 if (dane->trecs == NULL) {
270 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_NOT_ENABLED);
274 if (ilen < 0 || dlen != (size_t)ilen) {
275 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DATA_LENGTH);
279 if (usage > DANETLS_USAGE_LAST) {
280 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE);
284 if (selector > DANETLS_SELECTOR_LAST) {
285 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_SELECTOR);
289 if (mtype != DANETLS_MATCHING_FULL) {
290 md = tlsa_md_get(dane, mtype);
292 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE);
297 if (md != NULL && dlen != (size_t)EVP_MD_get_size(md)) {
298 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH);
302 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_NULL_DATA);
306 if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL)
310 t->selector = selector;
312 t->data = OPENSSL_malloc(dlen);
313 if (t->data == NULL) {
317 memcpy(t->data, data, dlen);
320 /* Validate and cache full certificate or public key */
321 if (mtype == DANETLS_MATCHING_FULL) {
322 const unsigned char *p = data;
324 EVP_PKEY *pkey = NULL;
327 case DANETLS_SELECTOR_CERT:
328 if (!d2i_X509(&cert, &p, ilen) || p < data ||
329 dlen != (size_t)(p - data)) {
332 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
335 if (X509_get0_pubkey(cert) == NULL) {
338 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
342 if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
344 * The Full(0) certificate decodes to a seemingly valid X.509
345 * object with a plausible key, so the TLSA record is well
346 * formed. However, we don't actually need the certificate for
347 * usages PKIX-EE(1) or DANE-EE(3), because at least the EE
348 * certificate is always presented by the peer. We discard the
349 * certificate, and just use the TLSA data as an opaque blob
350 * for matching the raw presented DER octets.
352 * DO NOT FREE `t` here, it will be added to the TLSA record
360 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
361 * records that contain full certificates of trust-anchors that are
362 * not present in the wire chain. For usage PKIX-TA(0), we augment
363 * the chain with untrusted Full(0) certificates from DNS, in case
364 * they are missing from the chain.
366 if ((dane->certs == NULL &&
367 (dane->certs = sk_X509_new_null()) == NULL) ||
368 !sk_X509_push(dane->certs, cert)) {
369 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
376 case DANETLS_SELECTOR_SPKI:
377 if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data ||
378 dlen != (size_t)(p - data)) {
381 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
386 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
387 * records that contain full bare keys of trust-anchors that are
388 * not present in the wire chain.
390 if (usage == DANETLS_USAGE_DANE_TA)
399 * Find the right insertion point for the new record.
401 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
402 * they can be processed first, as they require no chain building, and no
403 * expiration or hostname checks. Because DANE-EE(3) is numerically
404 * largest, this is accomplished via descending sort by "usage".
406 * We also sort in descending order by matching ordinal to simplify
407 * the implementation of digest agility in the verification code.
409 * The choice of order for the selector is not significant, so we
410 * use the same descending order for consistency.
412 num = sk_danetls_record_num(dane->trecs);
413 for (i = 0; i < num; ++i) {
414 danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
416 if (rec->usage > usage)
418 if (rec->usage < usage)
420 if (rec->selector > selector)
422 if (rec->selector < selector)
424 if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
429 if (!sk_danetls_record_insert(dane->trecs, t, i)) {
431 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
434 dane->umask |= DANETLS_USAGE_BIT(usage);
440 * Return 0 if there is only one version configured and it was disabled
441 * at configure time. Return 1 otherwise.
443 static int ssl_check_allowed_versions(int min_version, int max_version)
445 int minisdtls = 0, maxisdtls = 0;
447 /* Figure out if we're doing DTLS versions or TLS versions */
448 if (min_version == DTLS1_BAD_VER
449 || min_version >> 8 == DTLS1_VERSION_MAJOR)
451 if (max_version == DTLS1_BAD_VER
452 || max_version >> 8 == DTLS1_VERSION_MAJOR)
454 /* A wildcard version of 0 could be DTLS or TLS. */
455 if ((minisdtls && !maxisdtls && max_version != 0)
456 || (maxisdtls && !minisdtls && min_version != 0)) {
457 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
461 if (minisdtls || maxisdtls) {
462 /* Do DTLS version checks. */
463 if (min_version == 0)
464 /* Ignore DTLS1_BAD_VER */
465 min_version = DTLS1_VERSION;
466 if (max_version == 0)
467 max_version = DTLS1_2_VERSION;
468 #ifdef OPENSSL_NO_DTLS1_2
469 if (max_version == DTLS1_2_VERSION)
470 max_version = DTLS1_VERSION;
472 #ifdef OPENSSL_NO_DTLS1
473 if (min_version == DTLS1_VERSION)
474 min_version = DTLS1_2_VERSION;
476 /* Done massaging versions; do the check. */
478 #ifdef OPENSSL_NO_DTLS1
479 || (DTLS_VERSION_GE(min_version, DTLS1_VERSION)
480 && DTLS_VERSION_GE(DTLS1_VERSION, max_version))
482 #ifdef OPENSSL_NO_DTLS1_2
483 || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION)
484 && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version))
489 /* Regular TLS version checks. */
490 if (min_version == 0)
491 min_version = SSL3_VERSION;
492 if (max_version == 0)
493 max_version = TLS1_3_VERSION;
494 #ifdef OPENSSL_NO_TLS1_3
495 if (max_version == TLS1_3_VERSION)
496 max_version = TLS1_2_VERSION;
498 #ifdef OPENSSL_NO_TLS1_2
499 if (max_version == TLS1_2_VERSION)
500 max_version = TLS1_1_VERSION;
502 #ifdef OPENSSL_NO_TLS1_1
503 if (max_version == TLS1_1_VERSION)
504 max_version = TLS1_VERSION;
506 #ifdef OPENSSL_NO_TLS1
507 if (max_version == TLS1_VERSION)
508 max_version = SSL3_VERSION;
510 #ifdef OPENSSL_NO_SSL3
511 if (min_version == SSL3_VERSION)
512 min_version = TLS1_VERSION;
514 #ifdef OPENSSL_NO_TLS1
515 if (min_version == TLS1_VERSION)
516 min_version = TLS1_1_VERSION;
518 #ifdef OPENSSL_NO_TLS1_1
519 if (min_version == TLS1_1_VERSION)
520 min_version = TLS1_2_VERSION;
522 #ifdef OPENSSL_NO_TLS1_2
523 if (min_version == TLS1_2_VERSION)
524 min_version = TLS1_3_VERSION;
526 /* Done massaging versions; do the check. */
528 #ifdef OPENSSL_NO_SSL3
529 || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version)
531 #ifdef OPENSSL_NO_TLS1
532 || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version)
534 #ifdef OPENSSL_NO_TLS1_1
535 || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version)
537 #ifdef OPENSSL_NO_TLS1_2
538 || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version)
540 #ifdef OPENSSL_NO_TLS1_3
541 || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version)
549 #if defined(__TANDEM) && defined(OPENSSL_VPROC)
551 * Define a VPROC function for HP NonStop build ssl library.
552 * This is used by platform version identification tools.
553 * Do not inline this procedure or make it static.
555 # define OPENSSL_VPROC_STRING_(x) x##_SSL
556 # define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
557 # define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
558 void OPENSSL_VPROC_FUNC(void) {}
561 int SSL_clear(SSL *s)
563 if (s->method == NULL) {
564 ERR_raise(ERR_LIB_SSL, SSL_R_NO_METHOD_SPECIFIED);
568 return s->method->ssl_reset(s);
571 int ossl_ssl_connection_reset(SSL *s)
573 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
578 if (ssl_clear_bad_session(sc)) {
579 SSL_SESSION_free(sc->session);
582 SSL_SESSION_free(sc->psksession);
583 sc->psksession = NULL;
584 OPENSSL_free(sc->psksession_id);
585 sc->psksession_id = NULL;
586 sc->psksession_id_len = 0;
587 sc->hello_retry_request = SSL_HRR_NONE;
588 sc->sent_tickets = 0;
594 if (sc->renegotiate) {
595 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
599 ossl_statem_clear(sc);
601 sc->version = s->method->version;
602 sc->client_version = sc->version;
603 sc->rwstate = SSL_NOTHING;
605 BUF_MEM_free(sc->init_buf);
607 sc->first_packet = 0;
609 sc->key_update = SSL_KEY_UPDATE_NONE;
610 memset(sc->ext.compress_certificate_from_peer, 0,
611 sizeof(sc->ext.compress_certificate_from_peer));
612 sc->ext.compress_certificate_sent = 0;
614 EVP_MD_CTX_free(sc->pha_dgst);
617 /* Reset DANE verification result state */
620 X509_free(sc->dane.mcert);
621 sc->dane.mcert = NULL;
622 sc->dane.mtlsa = NULL;
624 /* Clear the verification result peername */
625 X509_VERIFY_PARAM_move_peername(sc->param, NULL);
627 /* Clear any shared connection state */
628 OPENSSL_free(sc->shared_sigalgs);
629 sc->shared_sigalgs = NULL;
630 sc->shared_sigalgslen = 0;
633 * Check to see if we were changed into a different method, if so, revert
636 if (s->method != s->defltmeth) {
637 s->method->ssl_deinit(s);
638 s->method = s->defltmeth;
639 if (!s->method->ssl_init(s))
642 if (!s->method->ssl_clear(s))
646 if (!RECORD_LAYER_reset(&sc->rlayer))
652 #ifndef OPENSSL_NO_DEPRECATED_3_0
653 /** Used to change an SSL_CTXs default SSL method type */
654 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
656 STACK_OF(SSL_CIPHER) *sk;
658 if (IS_QUIC_CTX(ctx)) {
659 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
665 if (!SSL_CTX_set_ciphersuites(ctx, OSSL_default_ciphersuites())) {
666 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
669 sk = ssl_create_cipher_list(ctx,
670 ctx->tls13_ciphersuites,
672 &(ctx->cipher_list_by_id),
673 OSSL_default_cipher_list(), ctx->cert);
674 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
675 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
682 SSL *SSL_new(SSL_CTX *ctx)
685 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_CTX);
688 if (ctx->method == NULL) {
689 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
692 return ctx->method->ssl_new(ctx);
695 int ossl_ssl_init(SSL *ssl, SSL_CTX *ctx, const SSL_METHOD *method, int type)
699 ssl->lock = CRYPTO_THREAD_lock_new();
700 if (ssl->lock == NULL)
703 if (!CRYPTO_NEW_REF(&ssl->references, 1)) {
704 CRYPTO_THREAD_lock_free(ssl->lock);
708 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, ssl, &ssl->ex_data)) {
709 CRYPTO_THREAD_lock_free(ssl->lock);
710 CRYPTO_FREE_REF(&ssl->references);
718 ssl->defltmeth = ssl->method = method;
723 SSL *ossl_ssl_connection_new_int(SSL_CTX *ctx, const SSL_METHOD *method)
728 s = OPENSSL_zalloc(sizeof(*s));
733 if (!ossl_ssl_init(ssl, ctx, method, SSL_TYPE_SSL_CONNECTION)) {
740 RECORD_LAYER_init(&s->rlayer, s);
742 s->options = ctx->options;
744 s->dane.flags = ctx->dane.flags;
745 if (method->version == ctx->method->version) {
746 s->min_proto_version = ctx->min_proto_version;
747 s->max_proto_version = ctx->max_proto_version;
751 s->max_cert_list = ctx->max_cert_list;
752 s->max_early_data = ctx->max_early_data;
753 s->recv_max_early_data = ctx->recv_max_early_data;
755 s->num_tickets = ctx->num_tickets;
756 s->pha_enabled = ctx->pha_enabled;
758 /* Shallow copy of the ciphersuites stack */
759 s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
760 if (s->tls13_ciphersuites == NULL)
764 * Earlier library versions used to copy the pointer to the CERT, not
765 * its contents; only when setting new parameters for the per-SSL
766 * copy, ssl_cert_new would be called (and the direct reference to
767 * the per-SSL_CTX settings would be lost, but those still were
768 * indirectly accessed for various purposes, and for that reason they
769 * used to be known as s->ctx->default_cert). Now we don't look at the
770 * SSL_CTX's CERT after having duplicated it once.
772 s->cert = ssl_cert_dup(ctx->cert);
776 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
777 s->msg_callback = ctx->msg_callback;
778 s->msg_callback_arg = ctx->msg_callback_arg;
779 s->verify_mode = ctx->verify_mode;
780 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
781 s->rlayer.record_padding_cb = ctx->record_padding_cb;
782 s->rlayer.record_padding_arg = ctx->record_padding_arg;
783 s->rlayer.block_padding = ctx->block_padding;
784 s->sid_ctx_length = ctx->sid_ctx_length;
785 if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
787 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
788 s->verify_callback = ctx->default_verify_callback;
789 s->generate_session_id = ctx->generate_session_id;
791 s->param = X509_VERIFY_PARAM_new();
792 if (s->param == NULL)
794 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
795 s->quiet_shutdown = IS_QUIC_CTX(ctx) ? 0 : ctx->quiet_shutdown;
797 if (!IS_QUIC_CTX(ctx))
798 s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
800 s->max_send_fragment = ctx->max_send_fragment;
801 s->split_send_fragment = ctx->split_send_fragment;
802 s->max_pipelines = ctx->max_pipelines;
803 s->rlayer.default_read_buf_len = ctx->default_read_buf_len;
806 s->ext.debug_arg = NULL;
807 s->ext.ticket_expected = 0;
808 s->ext.status_type = ctx->ext.status_type;
809 s->ext.status_expected = 0;
810 s->ext.ocsp.ids = NULL;
811 s->ext.ocsp.exts = NULL;
812 s->ext.ocsp.resp = NULL;
813 s->ext.ocsp.resp_len = 0;
815 s->session_ctx = ctx;
816 if (ctx->ext.ecpointformats) {
817 s->ext.ecpointformats =
818 OPENSSL_memdup(ctx->ext.ecpointformats,
819 ctx->ext.ecpointformats_len);
820 if (!s->ext.ecpointformats) {
821 s->ext.ecpointformats_len = 0;
824 s->ext.ecpointformats_len =
825 ctx->ext.ecpointformats_len;
827 if (ctx->ext.supportedgroups) {
828 s->ext.supportedgroups =
829 OPENSSL_memdup(ctx->ext.supportedgroups,
830 ctx->ext.supportedgroups_len
831 * sizeof(*ctx->ext.supportedgroups));
832 if (!s->ext.supportedgroups) {
833 s->ext.supportedgroups_len = 0;
836 s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
839 #ifndef OPENSSL_NO_NEXTPROTONEG
843 if (ctx->ext.alpn != NULL) {
844 s->ext.alpn = OPENSSL_malloc(ctx->ext.alpn_len);
845 if (s->ext.alpn == NULL) {
849 memcpy(s->ext.alpn, ctx->ext.alpn, ctx->ext.alpn_len);
850 s->ext.alpn_len = ctx->ext.alpn_len;
853 s->verified_chain = NULL;
854 s->verify_result = X509_V_OK;
856 s->default_passwd_callback = ctx->default_passwd_callback;
857 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
859 s->key_update = SSL_KEY_UPDATE_NONE;
861 if (!IS_QUIC_CTX(ctx)) {
862 s->allow_early_data_cb = ctx->allow_early_data_cb;
863 s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
866 if (!method->ssl_init(ssl))
869 s->server = (method->ssl_accept == ssl_undefined_function) ? 0 : 1;
871 if (!method->ssl_reset(ssl))
874 #ifndef OPENSSL_NO_PSK
875 s->psk_client_callback = ctx->psk_client_callback;
876 s->psk_server_callback = ctx->psk_server_callback;
878 s->psk_find_session_cb = ctx->psk_find_session_cb;
879 s->psk_use_session_cb = ctx->psk_use_session_cb;
881 s->async_cb = ctx->async_cb;
882 s->async_cb_arg = ctx->async_cb_arg;
886 #ifndef OPENSSL_NO_COMP_ALG
887 memcpy(s->cert_comp_prefs, ctx->cert_comp_prefs, sizeof(s->cert_comp_prefs));
889 if (ctx->client_cert_type != NULL) {
890 s->client_cert_type = OPENSSL_memdup(ctx->client_cert_type,
891 ctx->client_cert_type_len);
892 if (s->client_cert_type == NULL)
894 s->client_cert_type_len = ctx->client_cert_type_len;
896 if (ctx->server_cert_type != NULL) {
897 s->server_cert_type = OPENSSL_memdup(ctx->server_cert_type,
898 ctx->server_cert_type_len);
899 if (s->server_cert_type == NULL)
901 s->server_cert_type_len = ctx->server_cert_type_len;
904 #ifndef OPENSSL_NO_CT
905 if (!SSL_set_ct_validation_callback(ssl, ctx->ct_validation_callback,
906 ctx->ct_validation_callback_arg))
910 s->ssl_pkey_num = SSL_PKEY_NUM + ctx->sigalg_list_len;
913 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
916 ERR_raise(ERR_LIB_SSL, ERR_R_ASN1_LIB);
919 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
925 SSL *ossl_ssl_connection_new(SSL_CTX *ctx)
927 return ossl_ssl_connection_new_int(ctx, ctx->method);
930 int SSL_is_dtls(const SSL *s)
932 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
934 #ifndef OPENSSL_NO_QUIC
935 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
942 return SSL_CONNECTION_IS_DTLS(sc) ? 1 : 0;
945 int SSL_is_tls(const SSL *s)
947 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
949 #ifndef OPENSSL_NO_QUIC
950 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
957 return SSL_CONNECTION_IS_DTLS(sc) ? 0 : 1;
960 int SSL_is_quic(const SSL *s)
962 #ifndef OPENSSL_NO_QUIC
963 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
969 int SSL_up_ref(SSL *s)
973 if (CRYPTO_UP_REF(&s->references, &i) <= 0)
976 REF_PRINT_COUNT("SSL", s);
977 REF_ASSERT_ISNT(i < 2);
978 return ((i > 1) ? 1 : 0);
981 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
982 unsigned int sid_ctx_len)
984 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
985 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
988 ctx->sid_ctx_length = sid_ctx_len;
989 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
994 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
995 unsigned int sid_ctx_len)
997 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1002 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
1003 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
1006 sc->sid_ctx_length = sid_ctx_len;
1007 memcpy(sc->sid_ctx, sid_ctx, sid_ctx_len);
1012 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
1014 if (!CRYPTO_THREAD_write_lock(ctx->lock))
1016 ctx->generate_session_id = cb;
1017 CRYPTO_THREAD_unlock(ctx->lock);
1021 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
1023 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1025 if (sc == NULL || !CRYPTO_THREAD_write_lock(ssl->lock))
1027 sc->generate_session_id = cb;
1028 CRYPTO_THREAD_unlock(ssl->lock);
1032 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
1033 unsigned int id_len)
1036 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
1037 * we can "construct" a session to give us the desired check - i.e. to
1038 * find if there's a session in the hash table that would conflict with
1039 * any new session built out of this id/id_len and the ssl_version in use
1043 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
1045 if (sc == NULL || id_len > sizeof(r.session_id))
1048 r.ssl_version = sc->version;
1049 r.session_id_length = id_len;
1050 memcpy(r.session_id, id, id_len);
1052 if (!CRYPTO_THREAD_read_lock(sc->session_ctx->lock))
1054 p = lh_SSL_SESSION_retrieve(sc->session_ctx->sessions, &r);
1055 CRYPTO_THREAD_unlock(sc->session_ctx->lock);
1059 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
1061 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
1064 int SSL_set_purpose(SSL *s, int purpose)
1066 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1071 return X509_VERIFY_PARAM_set_purpose(sc->param, purpose);
1074 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
1076 return X509_VERIFY_PARAM_set_trust(s->param, trust);
1079 int SSL_set_trust(SSL *s, int trust)
1081 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1086 return X509_VERIFY_PARAM_set_trust(sc->param, trust);
1089 int SSL_set1_host(SSL *s, const char *hostname)
1091 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1096 /* If a hostname is provided and parses as an IP address,
1097 * treat it as such. */
1098 if (hostname != NULL
1099 && X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname) == 1)
1102 return X509_VERIFY_PARAM_set1_host(sc->param, hostname, 0);
1105 int SSL_add1_host(SSL *s, const char *hostname)
1107 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1112 /* If a hostname is provided and parses as an IP address,
1113 * treat it as such. */
1116 ASN1_OCTET_STRING *ip;
1119 ip = a2i_IPADDRESS(hostname);
1121 /* We didn't want it; only to check if it *is* an IP address */
1122 ASN1_OCTET_STRING_free(ip);
1124 old_ip = X509_VERIFY_PARAM_get1_ip_asc(sc->param);
1127 OPENSSL_free(old_ip);
1128 /* There can be only one IP address */
1132 return X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname);
1136 return X509_VERIFY_PARAM_add1_host(sc->param, hostname, 0);
1139 void SSL_set_hostflags(SSL *s, unsigned int flags)
1141 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1146 X509_VERIFY_PARAM_set_hostflags(sc->param, flags);
1149 const char *SSL_get0_peername(SSL *s)
1151 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1156 return X509_VERIFY_PARAM_get0_peername(sc->param);
1159 int SSL_CTX_dane_enable(SSL_CTX *ctx)
1161 return dane_ctx_enable(&ctx->dane);
1164 unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
1166 unsigned long orig = ctx->dane.flags;
1168 ctx->dane.flags |= flags;
1172 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
1174 unsigned long orig = ctx->dane.flags;
1176 ctx->dane.flags &= ~flags;
1180 int SSL_dane_enable(SSL *s, const char *basedomain)
1183 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1189 if (s->ctx->dane.mdmax == 0) {
1190 ERR_raise(ERR_LIB_SSL, SSL_R_CONTEXT_NOT_DANE_ENABLED);
1193 if (dane->trecs != NULL) {
1194 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_ALREADY_ENABLED);
1199 * Default SNI name. This rejects empty names, while set1_host below
1200 * accepts them and disables hostname checks. To avoid side-effects with
1201 * invalid input, set the SNI name first.
1203 if (sc->ext.hostname == NULL) {
1204 if (!SSL_set_tlsext_host_name(s, basedomain)) {
1205 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1210 /* Primary RFC6125 reference identifier */
1211 if (!X509_VERIFY_PARAM_set1_host(sc->param, basedomain, 0)) {
1212 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1218 dane->dctx = &s->ctx->dane;
1219 dane->trecs = sk_danetls_record_new_null();
1221 if (dane->trecs == NULL) {
1222 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
1228 unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
1231 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1236 orig = sc->dane.flags;
1238 sc->dane.flags |= flags;
1242 unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
1245 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1250 orig = sc->dane.flags;
1252 sc->dane.flags &= ~flags;
1256 int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
1259 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1266 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1270 *mcert = dane->mcert;
1272 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
1277 int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
1278 uint8_t *mtype, const unsigned char **data, size_t *dlen)
1281 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1288 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1292 *usage = dane->mtlsa->usage;
1294 *selector = dane->mtlsa->selector;
1296 *mtype = dane->mtlsa->mtype;
1298 *data = dane->mtlsa->data;
1300 *dlen = dane->mtlsa->dlen;
1305 SSL_DANE *SSL_get0_dane(SSL *s)
1307 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1315 int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
1316 uint8_t mtype, const unsigned char *data, size_t dlen)
1318 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1323 return dane_tlsa_add(&sc->dane, usage, selector, mtype, data, dlen);
1326 int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
1329 return dane_mtype_set(&ctx->dane, md, mtype, ord);
1332 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
1334 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
1337 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
1339 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1344 return X509_VERIFY_PARAM_set1(sc->param, vpm);
1347 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
1352 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
1354 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1362 void SSL_certs_clear(SSL *s)
1364 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1369 ssl_cert_clear_certs(sc->cert);
1372 void SSL_free(SSL *s)
1378 CRYPTO_DOWN_REF(&s->references, &i);
1379 REF_PRINT_COUNT("SSL", s);
1382 REF_ASSERT_ISNT(i < 0);
1384 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1386 if (s->method != NULL)
1387 s->method->ssl_free(s);
1389 SSL_CTX_free(s->ctx);
1390 CRYPTO_THREAD_lock_free(s->lock);
1391 CRYPTO_FREE_REF(&s->references);
1396 void ossl_ssl_connection_free(SSL *ssl)
1400 s = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
1404 X509_VERIFY_PARAM_free(s->param);
1405 dane_final(&s->dane);
1407 /* Ignore return value */
1408 ssl_free_wbio_buffer(s);
1410 /* Ignore return value */
1411 RECORD_LAYER_clear(&s->rlayer);
1413 BUF_MEM_free(s->init_buf);
1415 /* add extra stuff */
1416 sk_SSL_CIPHER_free(s->cipher_list);
1417 sk_SSL_CIPHER_free(s->cipher_list_by_id);
1418 sk_SSL_CIPHER_free(s->tls13_ciphersuites);
1419 sk_SSL_CIPHER_free(s->peer_ciphers);
1421 /* Make the next call work :-) */
1422 if (s->session != NULL) {
1423 ssl_clear_bad_session(s);
1424 SSL_SESSION_free(s->session);
1426 SSL_SESSION_free(s->psksession);
1427 OPENSSL_free(s->psksession_id);
1429 ssl_cert_free(s->cert);
1430 OPENSSL_free(s->shared_sigalgs);
1431 /* Free up if allocated */
1433 OPENSSL_free(s->ext.hostname);
1434 SSL_CTX_free(s->session_ctx);
1435 OPENSSL_free(s->ext.ecpointformats);
1436 OPENSSL_free(s->ext.peer_ecpointformats);
1437 OPENSSL_free(s->ext.supportedgroups);
1438 OPENSSL_free(s->ext.peer_supportedgroups);
1439 sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
1440 #ifndef OPENSSL_NO_OCSP
1441 sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
1443 #ifndef OPENSSL_NO_CT
1444 SCT_LIST_free(s->scts);
1445 OPENSSL_free(s->ext.scts);
1447 OPENSSL_free(s->ext.ocsp.resp);
1448 OPENSSL_free(s->ext.alpn);
1449 OPENSSL_free(s->ext.tls13_cookie);
1450 if (s->clienthello != NULL)
1451 OPENSSL_free(s->clienthello->pre_proc_exts);
1452 OPENSSL_free(s->clienthello);
1453 OPENSSL_free(s->pha_context);
1454 EVP_MD_CTX_free(s->pha_dgst);
1456 sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
1457 sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
1459 OPENSSL_free(s->client_cert_type);
1460 OPENSSL_free(s->server_cert_type);
1462 OSSL_STACK_OF_X509_free(s->verified_chain);
1464 if (ssl->method != NULL)
1465 ssl->method->ssl_deinit(ssl);
1467 ASYNC_WAIT_CTX_free(s->waitctx);
1469 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1470 OPENSSL_free(s->ext.npn);
1473 #ifndef OPENSSL_NO_SRTP
1474 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
1478 * We do this late. We want to ensure that any other references we held to
1479 * these BIOs are freed first *before* we call BIO_free_all(), because
1480 * BIO_free_all() will only free each BIO in the chain if the number of
1481 * references to the first BIO have dropped to 0
1483 BIO_free_all(s->wbio);
1485 BIO_free_all(s->rbio);
1487 OPENSSL_free(s->s3.tmp.valid_flags);
1490 void SSL_set0_rbio(SSL *s, BIO *rbio)
1492 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1494 #ifndef OPENSSL_NO_QUIC
1496 ossl_quic_conn_set0_net_rbio(s, rbio);
1504 BIO_free_all(sc->rbio);
1506 sc->rlayer.rrlmethod->set1_bio(sc->rlayer.rrl, sc->rbio);
1509 void SSL_set0_wbio(SSL *s, BIO *wbio)
1511 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1513 #ifndef OPENSSL_NO_QUIC
1515 ossl_quic_conn_set0_net_wbio(s, wbio);
1524 * If the output buffering BIO is still in place, remove it
1526 if (sc->bbio != NULL)
1527 sc->wbio = BIO_pop(sc->wbio);
1529 BIO_free_all(sc->wbio);
1532 /* Re-attach |bbio| to the new |wbio|. */
1533 if (sc->bbio != NULL)
1534 sc->wbio = BIO_push(sc->bbio, sc->wbio);
1536 sc->rlayer.wrlmethod->set1_bio(sc->rlayer.wrl, sc->wbio);
1539 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1542 * For historical reasons, this function has many different cases in
1543 * ownership handling.
1546 /* If nothing has changed, do nothing */
1547 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1551 * If the two arguments are equal then one fewer reference is granted by the
1552 * caller than we want to take
1554 if (rbio != NULL && rbio == wbio)
1558 * If only the wbio is changed only adopt one reference.
1560 if (rbio == SSL_get_rbio(s)) {
1561 SSL_set0_wbio(s, wbio);
1565 * There is an asymmetry here for historical reasons. If only the rbio is
1566 * changed AND the rbio and wbio were originally different, then we only
1567 * adopt one reference.
1569 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1570 SSL_set0_rbio(s, rbio);
1574 /* Otherwise, adopt both references. */
1575 SSL_set0_rbio(s, rbio);
1576 SSL_set0_wbio(s, wbio);
1579 BIO *SSL_get_rbio(const SSL *s)
1581 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1583 #ifndef OPENSSL_NO_QUIC
1585 return ossl_quic_conn_get_net_rbio(s);
1594 BIO *SSL_get_wbio(const SSL *s)
1596 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1598 #ifndef OPENSSL_NO_QUIC
1600 return ossl_quic_conn_get_net_wbio(s);
1606 if (sc->bbio != NULL) {
1608 * If |bbio| is active, the true caller-configured BIO is its
1611 return BIO_next(sc->bbio);
1616 int SSL_get_fd(const SSL *s)
1618 return SSL_get_rfd(s);
1621 int SSL_get_rfd(const SSL *s)
1626 b = SSL_get_rbio(s);
1627 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1629 BIO_get_fd(r, &ret);
1633 int SSL_get_wfd(const SSL *s)
1638 b = SSL_get_wbio(s);
1639 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1641 BIO_get_fd(r, &ret);
1645 #ifndef OPENSSL_NO_SOCK
1646 static const BIO_METHOD *fd_method(SSL *s)
1648 #ifndef OPENSSL_NO_DGRAM
1650 return BIO_s_datagram();
1653 return BIO_s_socket();
1656 int SSL_set_fd(SSL *s, int fd)
1661 if (s->type == SSL_TYPE_QUIC_XSO) {
1662 ERR_raise(ERR_LIB_SSL, SSL_R_CONN_USE_ONLY);
1666 bio = BIO_new(fd_method(s));
1669 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1672 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1673 SSL_set_bio(s, bio, bio);
1674 #ifndef OPENSSL_NO_KTLS
1676 * The new socket is created successfully regardless of ktls_enable.
1677 * ktls_enable doesn't change any functionality of the socket, except
1678 * changing the setsockopt to enable the processing of ktls_start.
1679 * Thus, it is not a problem to call it for non-TLS sockets.
1682 #endif /* OPENSSL_NO_KTLS */
1688 int SSL_set_wfd(SSL *s, int fd)
1690 BIO *rbio = SSL_get_rbio(s);
1691 int desired_type = IS_QUIC(s) ? BIO_TYPE_DGRAM : BIO_TYPE_SOCKET;
1693 if (s->type == SSL_TYPE_QUIC_XSO) {
1694 ERR_raise(ERR_LIB_SSL, SSL_R_CONN_USE_ONLY);
1698 if (rbio == NULL || BIO_method_type(rbio) != desired_type
1699 || (int)BIO_get_fd(rbio, NULL) != fd) {
1700 BIO *bio = BIO_new(fd_method(s));
1703 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1706 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1707 SSL_set0_wbio(s, bio);
1708 #ifndef OPENSSL_NO_KTLS
1710 * The new socket is created successfully regardless of ktls_enable.
1711 * ktls_enable doesn't change any functionality of the socket, except
1712 * changing the setsockopt to enable the processing of ktls_start.
1713 * Thus, it is not a problem to call it for non-TLS sockets.
1716 #endif /* OPENSSL_NO_KTLS */
1719 SSL_set0_wbio(s, rbio);
1724 int SSL_set_rfd(SSL *s, int fd)
1726 BIO *wbio = SSL_get_wbio(s);
1727 int desired_type = IS_QUIC(s) ? BIO_TYPE_DGRAM : BIO_TYPE_SOCKET;
1729 if (s->type == SSL_TYPE_QUIC_XSO) {
1730 ERR_raise(ERR_LIB_SSL, SSL_R_CONN_USE_ONLY);
1734 if (wbio == NULL || BIO_method_type(wbio) != desired_type
1735 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
1736 BIO *bio = BIO_new(fd_method(s));
1739 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1742 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1743 SSL_set0_rbio(s, bio);
1746 SSL_set0_rbio(s, wbio);
1753 /* return length of latest Finished message we sent, copy to 'buf' */
1754 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
1757 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1762 ret = sc->s3.tmp.finish_md_len;
1765 memcpy(buf, sc->s3.tmp.finish_md, count);
1769 /* return length of latest Finished message we expected, copy to 'buf' */
1770 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
1773 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1778 ret = sc->s3.tmp.peer_finish_md_len;
1781 memcpy(buf, sc->s3.tmp.peer_finish_md, count);
1785 int SSL_get_verify_mode(const SSL *s)
1787 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1792 return sc->verify_mode;
1795 int SSL_get_verify_depth(const SSL *s)
1797 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1802 return X509_VERIFY_PARAM_get_depth(sc->param);
1805 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
1806 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1811 return sc->verify_callback;
1814 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
1816 return ctx->verify_mode;
1819 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
1821 return X509_VERIFY_PARAM_get_depth(ctx->param);
1824 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
1825 return ctx->default_verify_callback;
1828 void SSL_set_verify(SSL *s, int mode,
1829 int (*callback) (int ok, X509_STORE_CTX *ctx))
1831 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1836 sc->verify_mode = mode;
1837 if (callback != NULL)
1838 sc->verify_callback = callback;
1841 void SSL_set_verify_depth(SSL *s, int depth)
1843 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1848 X509_VERIFY_PARAM_set_depth(sc->param, depth);
1851 void SSL_set_read_ahead(SSL *s, int yes)
1853 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
1854 OSSL_PARAM options[2], *opts = options;
1859 RECORD_LAYER_set_read_ahead(&sc->rlayer, yes);
1861 *opts++ = OSSL_PARAM_construct_int(OSSL_LIBSSL_RECORD_LAYER_PARAM_READ_AHEAD,
1862 &sc->rlayer.read_ahead);
1863 *opts = OSSL_PARAM_construct_end();
1865 /* Ignore return value */
1866 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
1869 int SSL_get_read_ahead(const SSL *s)
1871 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
1876 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
1879 int SSL_pending(const SSL *s)
1881 size_t pending = s->method->ssl_pending(s);
1884 * SSL_pending cannot work properly if read-ahead is enabled
1885 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1886 * impossible to fix since SSL_pending cannot report errors that may be
1887 * observed while scanning the new data. (Note that SSL_pending() is
1888 * often used as a boolean value, so we'd better not return -1.)
1890 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1891 * we just return INT_MAX.
1893 return pending < INT_MAX ? (int)pending : INT_MAX;
1896 int SSL_has_pending(const SSL *s)
1899 * Similar to SSL_pending() but returns a 1 to indicate that we have
1900 * processed or unprocessed data available or 0 otherwise (as opposed to the
1901 * number of bytes available). Unlike SSL_pending() this will take into
1902 * account read_ahead data. A 1 return simply indicates that we have data.
1903 * That data may not result in any application data, or we may fail to parse
1904 * the records for some reason.
1906 const SSL_CONNECTION *sc;
1908 #ifndef OPENSSL_NO_QUIC
1910 return ossl_quic_has_pending(s);
1913 sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1915 /* Check buffered app data if any first */
1916 if (SSL_CONNECTION_IS_DTLS(sc)) {
1920 iter = pqueue_iterator(sc->rlayer.d->buffered_app_data.q);
1921 while ((item = pqueue_next(&iter)) != NULL) {
1923 if (rdata->length > 0)
1928 if (RECORD_LAYER_processed_read_pending(&sc->rlayer))
1931 return RECORD_LAYER_read_pending(&sc->rlayer);
1934 X509 *SSL_get1_peer_certificate(const SSL *s)
1936 X509 *r = SSL_get0_peer_certificate(s);
1944 X509 *SSL_get0_peer_certificate(const SSL *s)
1946 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1951 if (sc->session == NULL)
1954 return sc->session->peer;
1957 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
1960 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1965 if (sc->session == NULL)
1968 r = sc->session->peer_chain;
1971 * If we are a client, cert_chain includes the peer's own certificate; if
1972 * we are a server, it does not.
1979 * Now in theory, since the calling process own 't' it should be safe to
1980 * modify. We need to be able to read f without being hassled
1982 int SSL_copy_session_id(SSL *t, const SSL *f)
1985 /* TODO(QUIC FUTURE): Not allowed for QUIC currently. */
1986 SSL_CONNECTION *tsc = SSL_CONNECTION_FROM_SSL_ONLY(t);
1987 const SSL_CONNECTION *fsc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(f);
1989 if (tsc == NULL || fsc == NULL)
1992 /* Do we need to do SSL locking? */
1993 if (!SSL_set_session(t, SSL_get_session(f))) {
1998 * what if we are setup for one protocol version but want to talk another
2000 if (t->method != f->method) {
2001 t->method->ssl_deinit(t);
2002 t->method = f->method;
2003 if (t->method->ssl_init(t) == 0)
2007 CRYPTO_UP_REF(&fsc->cert->references, &i);
2008 ssl_cert_free(tsc->cert);
2009 tsc->cert = fsc->cert;
2010 if (!SSL_set_session_id_context(t, fsc->sid_ctx, (int)fsc->sid_ctx_length)) {
2017 /* Fix this so it checks all the valid key/cert options */
2018 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
2020 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
2021 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
2024 if (ctx->cert->key->privatekey == NULL) {
2025 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
2028 return X509_check_private_key
2029 (ctx->cert->key->x509, ctx->cert->key->privatekey);
2032 /* Fix this function so that it takes an optional type parameter */
2033 int SSL_check_private_key(const SSL *ssl)
2035 const SSL_CONNECTION *sc;
2037 if ((sc = SSL_CONNECTION_FROM_CONST_SSL(ssl)) == NULL) {
2038 ERR_raise(ERR_LIB_SSL, ERR_R_PASSED_NULL_PARAMETER);
2041 if (sc->cert->key->x509 == NULL) {
2042 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
2045 if (sc->cert->key->privatekey == NULL) {
2046 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
2049 return X509_check_private_key(sc->cert->key->x509,
2050 sc->cert->key->privatekey);
2053 int SSL_waiting_for_async(SSL *s)
2055 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2066 int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
2068 ASYNC_WAIT_CTX *ctx;
2069 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2074 if ((ctx = sc->waitctx) == NULL)
2076 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
2079 int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
2080 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
2082 ASYNC_WAIT_CTX *ctx;
2083 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2088 if ((ctx = sc->waitctx) == NULL)
2090 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
2094 int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback)
2096 ctx->async_cb = callback;
2100 int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg)
2102 ctx->async_cb_arg = arg;
2106 int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback)
2108 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2113 sc->async_cb = callback;
2117 int SSL_set_async_callback_arg(SSL *s, void *arg)
2119 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2124 sc->async_cb_arg = arg;
2128 int SSL_get_async_status(SSL *s, int *status)
2130 ASYNC_WAIT_CTX *ctx;
2131 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2136 if ((ctx = sc->waitctx) == NULL)
2138 *status = ASYNC_WAIT_CTX_get_status(ctx);
2142 int SSL_accept(SSL *s)
2144 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2146 #ifndef OPENSSL_NO_QUIC
2148 return s->method->ssl_accept(s);
2154 if (sc->handshake_func == NULL) {
2155 /* Not properly initialized yet */
2156 SSL_set_accept_state(s);
2159 return SSL_do_handshake(s);
2162 int SSL_connect(SSL *s)
2164 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2166 #ifndef OPENSSL_NO_QUIC
2168 return s->method->ssl_connect(s);
2174 if (sc->handshake_func == NULL) {
2175 /* Not properly initialized yet */
2176 SSL_set_connect_state(s);
2179 return SSL_do_handshake(s);
2182 long SSL_get_default_timeout(const SSL *s)
2184 return (long int)ossl_time2seconds(s->method->get_timeout());
2187 static int ssl_async_wait_ctx_cb(void *arg)
2189 SSL *s = (SSL *)arg;
2190 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2195 return sc->async_cb(s, sc->async_cb_arg);
2198 static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
2199 int (*func) (void *))
2202 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2207 if (sc->waitctx == NULL) {
2208 sc->waitctx = ASYNC_WAIT_CTX_new();
2209 if (sc->waitctx == NULL)
2211 if (sc->async_cb != NULL
2212 && !ASYNC_WAIT_CTX_set_callback
2213 (sc->waitctx, ssl_async_wait_ctx_cb, s))
2217 sc->rwstate = SSL_NOTHING;
2218 switch (ASYNC_start_job(&sc->job, sc->waitctx, &ret, func, args,
2219 sizeof(struct ssl_async_args))) {
2221 sc->rwstate = SSL_NOTHING;
2222 ERR_raise(ERR_LIB_SSL, SSL_R_FAILED_TO_INIT_ASYNC);
2225 sc->rwstate = SSL_ASYNC_PAUSED;
2228 sc->rwstate = SSL_ASYNC_NO_JOBS;
2234 sc->rwstate = SSL_NOTHING;
2235 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
2236 /* Shouldn't happen */
2241 static int ssl_io_intern(void *vargs)
2243 struct ssl_async_args *args;
2249 args = (struct ssl_async_args *)vargs;
2253 if ((sc = SSL_CONNECTION_FROM_SSL(s)) == NULL)
2256 switch (args->type) {
2258 return args->f.func_read(s, buf, num, &sc->asyncrw);
2260 return args->f.func_write(s, buf, num, &sc->asyncrw);
2262 return args->f.func_other(s);
2267 int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2269 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2271 #ifndef OPENSSL_NO_QUIC
2273 return s->method->ssl_read(s, buf, num, readbytes);
2279 if (sc->handshake_func == NULL) {
2280 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2284 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2285 sc->rwstate = SSL_NOTHING;
2289 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2290 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
2291 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2295 * If we are a client and haven't received the ServerHello etc then we
2298 ossl_statem_check_finish_init(sc, 0);
2300 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2301 struct ssl_async_args args;
2307 args.type = READFUNC;
2308 args.f.func_read = s->method->ssl_read;
2310 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2311 *readbytes = sc->asyncrw;
2314 return s->method->ssl_read(s, buf, num, readbytes);
2318 int SSL_read(SSL *s, void *buf, int num)
2324 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2328 ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
2331 * The cast is safe here because ret should be <= INT_MAX because num is
2335 ret = (int)readbytes;
2340 int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2342 int ret = ssl_read_internal(s, buf, num, readbytes);
2349 int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
2352 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2354 /* TODO(QUIC 0RTT): 0-RTT support */
2355 if (sc == NULL || !sc->server) {
2356 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2357 return SSL_READ_EARLY_DATA_ERROR;
2360 switch (sc->early_data_state) {
2361 case SSL_EARLY_DATA_NONE:
2362 if (!SSL_in_before(s)) {
2363 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2364 return SSL_READ_EARLY_DATA_ERROR;
2368 case SSL_EARLY_DATA_ACCEPT_RETRY:
2369 sc->early_data_state = SSL_EARLY_DATA_ACCEPTING;
2370 ret = SSL_accept(s);
2373 sc->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
2374 return SSL_READ_EARLY_DATA_ERROR;
2378 case SSL_EARLY_DATA_READ_RETRY:
2379 if (sc->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
2380 sc->early_data_state = SSL_EARLY_DATA_READING;
2381 ret = SSL_read_ex(s, buf, num, readbytes);
2383 * State machine will update early_data_state to
2384 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
2387 if (ret > 0 || (ret <= 0 && sc->early_data_state
2388 != SSL_EARLY_DATA_FINISHED_READING)) {
2389 sc->early_data_state = SSL_EARLY_DATA_READ_RETRY;
2390 return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
2391 : SSL_READ_EARLY_DATA_ERROR;
2394 sc->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
2397 return SSL_READ_EARLY_DATA_FINISH;
2400 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2401 return SSL_READ_EARLY_DATA_ERROR;
2405 int SSL_get_early_data_status(const SSL *s)
2407 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
2409 /* TODO(QUIC 0RTT): 0-RTT support */
2413 return sc->ext.early_data;
2416 static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2418 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2420 #ifndef OPENSSL_NO_QUIC
2422 return s->method->ssl_peek(s, buf, num, readbytes);
2428 if (sc->handshake_func == NULL) {
2429 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2433 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2436 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2437 struct ssl_async_args args;
2443 args.type = READFUNC;
2444 args.f.func_read = s->method->ssl_peek;
2446 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2447 *readbytes = sc->asyncrw;
2450 return s->method->ssl_peek(s, buf, num, readbytes);
2454 int SSL_peek(SSL *s, void *buf, int num)
2460 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2464 ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
2467 * The cast is safe here because ret should be <= INT_MAX because num is
2471 ret = (int)readbytes;
2477 int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2479 int ret = ssl_peek_internal(s, buf, num, readbytes);
2486 int ssl_write_internal(SSL *s, const void *buf, size_t num,
2487 uint64_t flags, size_t *written)
2489 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2491 #ifndef OPENSSL_NO_QUIC
2493 return ossl_quic_write_flags(s, buf, num, flags, written);
2499 if (sc->handshake_func == NULL) {
2500 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2504 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2505 sc->rwstate = SSL_NOTHING;
2506 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2511 ERR_raise(ERR_LIB_SSL, SSL_R_UNSUPPORTED_WRITE_FLAG);
2515 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2516 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
2517 || sc->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
2518 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2521 /* If we are a client and haven't sent the Finished we better do that */
2522 ossl_statem_check_finish_init(sc, 1);
2524 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2526 struct ssl_async_args args;
2529 args.buf = (void *)buf;
2531 args.type = WRITEFUNC;
2532 args.f.func_write = s->method->ssl_write;
2534 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2535 *written = sc->asyncrw;
2538 return s->method->ssl_write(s, buf, num, written);
2542 ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size, int flags)
2545 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2550 if (sc->handshake_func == NULL) {
2551 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2555 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2556 sc->rwstate = SSL_NOTHING;
2557 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2561 if (!BIO_get_ktls_send(sc->wbio)) {
2562 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2566 /* If we have an alert to send, lets send it */
2567 if (sc->s3.alert_dispatch > 0) {
2568 ret = (ossl_ssize_t)s->method->ssl_dispatch_alert(s);
2570 /* SSLfatal() already called if appropriate */
2573 /* if it went, fall through and send more stuff */
2576 sc->rwstate = SSL_WRITING;
2577 if (BIO_flush(sc->wbio) <= 0) {
2578 if (!BIO_should_retry(sc->wbio)) {
2579 sc->rwstate = SSL_NOTHING;
2582 set_sys_error(EAGAIN);
2588 #ifdef OPENSSL_NO_KTLS
2589 ERR_raise_data(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR,
2590 "can't call ktls_sendfile(), ktls disabled");
2593 ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags);
2595 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2596 if ((get_last_sys_error() == EAGAIN) ||
2597 (get_last_sys_error() == EINTR) ||
2598 (get_last_sys_error() == EBUSY))
2599 BIO_set_retry_write(sc->wbio);
2602 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2605 sc->rwstate = SSL_NOTHING;
2610 int SSL_write(SSL *s, const void *buf, int num)
2616 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2620 ret = ssl_write_internal(s, buf, (size_t)num, 0, &written);
2623 * The cast is safe here because ret should be <= INT_MAX because num is
2632 int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
2634 return SSL_write_ex2(s, buf, num, 0, written);
2637 int SSL_write_ex2(SSL *s, const void *buf, size_t num, uint64_t flags,
2640 int ret = ssl_write_internal(s, buf, num, flags, written);
2647 int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
2649 int ret, early_data_state;
2651 uint32_t partialwrite;
2652 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2654 /* TODO(QUIC 0RTT): This will need special handling for QUIC */
2658 switch (sc->early_data_state) {
2659 case SSL_EARLY_DATA_NONE:
2661 || !SSL_in_before(s)
2662 || ((sc->session == NULL || sc->session->ext.max_early_data == 0)
2663 && (sc->psk_use_session_cb == NULL))) {
2664 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2669 case SSL_EARLY_DATA_CONNECT_RETRY:
2670 sc->early_data_state = SSL_EARLY_DATA_CONNECTING;
2671 ret = SSL_connect(s);
2674 sc->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
2679 case SSL_EARLY_DATA_WRITE_RETRY:
2680 sc->early_data_state = SSL_EARLY_DATA_WRITING;
2682 * We disable partial write for early data because we don't keep track
2683 * of how many bytes we've written between the SSL_write_ex() call and
2684 * the flush if the flush needs to be retried)
2686 partialwrite = sc->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
2687 sc->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
2688 ret = SSL_write_ex(s, buf, num, &writtmp);
2689 sc->mode |= partialwrite;
2691 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2694 sc->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
2697 case SSL_EARLY_DATA_WRITE_FLUSH:
2698 /* The buffering BIO is still in place so we need to flush it */
2699 if (statem_flush(sc) != 1)
2702 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2705 case SSL_EARLY_DATA_FINISHED_READING:
2706 case SSL_EARLY_DATA_READ_RETRY:
2707 early_data_state = sc->early_data_state;
2708 /* We are a server writing to an unauthenticated client */
2709 sc->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
2710 ret = SSL_write_ex(s, buf, num, written);
2711 /* The buffering BIO is still in place */
2713 (void)BIO_flush(sc->wbio);
2714 sc->early_data_state = early_data_state;
2718 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2723 int SSL_shutdown(SSL *s)
2726 * Note that this function behaves differently from what one might
2727 * expect. Return values are 0 for no success (yet), 1 for success; but
2728 * calling it once is usually not enough, even if blocking I/O is used
2729 * (see ssl3_shutdown).
2731 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2733 #ifndef OPENSSL_NO_QUIC
2735 return ossl_quic_conn_shutdown(s, 0, NULL, 0);
2741 if (sc->handshake_func == NULL) {
2742 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2746 if (!SSL_in_init(s)) {
2747 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2748 struct ssl_async_args args;
2750 memset(&args, 0, sizeof(args));
2752 args.type = OTHERFUNC;
2753 args.f.func_other = s->method->ssl_shutdown;
2755 return ssl_start_async_job(s, &args, ssl_io_intern);
2757 return s->method->ssl_shutdown(s);
2760 ERR_raise(ERR_LIB_SSL, SSL_R_SHUTDOWN_WHILE_IN_INIT);
2765 int SSL_key_update(SSL *s, int updatetype)
2767 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2769 #ifndef OPENSSL_NO_QUIC
2771 return ossl_quic_key_update(s, updatetype);
2777 if (!SSL_CONNECTION_IS_TLS13(sc)) {
2778 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2782 if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
2783 && updatetype != SSL_KEY_UPDATE_REQUESTED) {
2784 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_KEY_UPDATE_TYPE);
2788 if (!SSL_is_init_finished(s)) {
2789 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
2793 if (RECORD_LAYER_write_pending(&sc->rlayer)) {
2794 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_WRITE_RETRY);
2798 ossl_statem_set_in_init(sc, 1);
2799 sc->key_update = updatetype;
2803 int SSL_get_key_update_type(const SSL *s)
2805 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
2807 #ifndef OPENSSL_NO_QUIC
2809 return ossl_quic_get_key_update_type(s);
2815 return sc->key_update;
2819 * Can we accept a renegotiation request? If yes, set the flag and
2820 * return 1 if yes. If not, raise error and return 0.
2822 static int can_renegotiate(const SSL_CONNECTION *sc)
2824 if (SSL_CONNECTION_IS_TLS13(sc)) {
2825 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2829 if ((sc->options & SSL_OP_NO_RENEGOTIATION) != 0) {
2830 ERR_raise(ERR_LIB_SSL, SSL_R_NO_RENEGOTIATION);
2837 int SSL_renegotiate(SSL *s)
2839 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2844 if (!can_renegotiate(sc))
2847 sc->renegotiate = 1;
2848 sc->new_session = 1;
2849 return s->method->ssl_renegotiate(s);
2852 int SSL_renegotiate_abbreviated(SSL *s)
2854 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2859 if (!can_renegotiate(sc))
2862 sc->renegotiate = 1;
2863 sc->new_session = 0;
2864 return s->method->ssl_renegotiate(s);
2867 int SSL_renegotiate_pending(const SSL *s)
2869 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2875 * becomes true when negotiation is requested; false again once a
2876 * handshake has finished
2878 return (sc->renegotiate != 0);
2881 int SSL_new_session_ticket(SSL *s)
2883 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2888 /* If we are in init because we're sending tickets, okay to send more. */
2889 if ((SSL_in_init(s) && sc->ext.extra_tickets_expected == 0)
2890 || SSL_IS_FIRST_HANDSHAKE(sc) || !sc->server
2891 || !SSL_CONNECTION_IS_TLS13(sc))
2893 sc->ext.extra_tickets_expected++;
2894 if (!RECORD_LAYER_write_pending(&sc->rlayer) && !SSL_in_init(s))
2895 ossl_statem_set_in_init(sc, 1);
2899 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
2901 return ossl_ctrl_internal(s, cmd, larg, parg, /*no_quic=*/0);
2904 long ossl_ctrl_internal(SSL *s, int cmd, long larg, void *parg, int no_quic)
2907 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2913 * Routing of ctrl calls for QUIC is a little counterintuitive:
2915 * - Firstly (no_quic=0), we pass the ctrl directly to our QUIC
2916 * implementation in case it wants to handle the ctrl specially.
2918 * - If our QUIC implementation does not care about the ctrl, it
2919 * will reenter this function with no_quic=1 and we will try to handle
2920 * it directly using the QCSO SSL object stub (not the handshake layer
2921 * SSL object). This is important for e.g. the version configuration
2922 * ctrls below, which must use s->defltmeth (and not sc->defltmeth).
2924 * - If we don't handle a ctrl here specially, then processing is
2925 * redirected to the handshake layer SSL object.
2927 if (!no_quic && IS_QUIC(s))
2928 return s->method->ssl_ctrl(s, cmd, larg, parg);
2931 case SSL_CTRL_GET_READ_AHEAD:
2932 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
2933 case SSL_CTRL_SET_READ_AHEAD:
2934 l = RECORD_LAYER_get_read_ahead(&sc->rlayer);
2935 RECORD_LAYER_set_read_ahead(&sc->rlayer, larg);
2940 OSSL_PARAM options[2], *opts = options;
2944 *opts++ = OSSL_PARAM_construct_uint32(OSSL_LIBSSL_RECORD_LAYER_PARAM_MODE,
2946 *opts = OSSL_PARAM_construct_end();
2948 /* Ignore return value */
2949 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
2953 case SSL_CTRL_CLEAR_MODE:
2954 return (sc->mode &= ~larg);
2955 case SSL_CTRL_GET_MAX_CERT_LIST:
2956 return (long)sc->max_cert_list;
2957 case SSL_CTRL_SET_MAX_CERT_LIST:
2960 l = (long)sc->max_cert_list;
2961 sc->max_cert_list = (size_t)larg;
2963 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2964 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2966 #ifndef OPENSSL_NO_KTLS
2967 if (sc->wbio != NULL && BIO_get_ktls_send(sc->wbio))
2969 #endif /* OPENSSL_NO_KTLS */
2970 sc->max_send_fragment = larg;
2971 if (sc->max_send_fragment < sc->split_send_fragment)
2972 sc->split_send_fragment = sc->max_send_fragment;
2973 sc->rlayer.wrlmethod->set_max_frag_len(sc->rlayer.wrl, larg);
2975 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2976 if ((size_t)larg > sc->max_send_fragment || larg == 0)
2978 sc->split_send_fragment = larg;
2980 case SSL_CTRL_SET_MAX_PIPELINES:
2981 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2983 sc->max_pipelines = larg;
2984 if (sc->rlayer.rrlmethod->set_max_pipelines != NULL)
2985 sc->rlayer.rrlmethod->set_max_pipelines(sc->rlayer.rrl, (size_t)larg);
2987 case SSL_CTRL_GET_RI_SUPPORT:
2988 return sc->s3.send_connection_binding;
2989 case SSL_CTRL_SET_RETRY_VERIFY:
2990 sc->rwstate = SSL_RETRY_VERIFY;
2992 case SSL_CTRL_CERT_FLAGS:
2993 return (sc->cert->cert_flags |= larg);
2994 case SSL_CTRL_CLEAR_CERT_FLAGS:
2995 return (sc->cert->cert_flags &= ~larg);
2997 case SSL_CTRL_GET_RAW_CIPHERLIST:
2999 if (sc->s3.tmp.ciphers_raw == NULL)
3001 *(unsigned char **)parg = sc->s3.tmp.ciphers_raw;
3002 return (int)sc->s3.tmp.ciphers_rawlen;
3004 return TLS_CIPHER_LEN;
3006 case SSL_CTRL_GET_EXTMS_SUPPORT:
3007 if (!sc->session || SSL_in_init(s) || ossl_statem_get_in_handshake(sc))
3009 if (sc->session->flags & SSL_SESS_FLAG_EXTMS)
3013 case SSL_CTRL_SET_MIN_PROTO_VERSION:
3014 return ssl_check_allowed_versions(larg, sc->max_proto_version)
3015 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
3016 &sc->min_proto_version);
3017 case SSL_CTRL_GET_MIN_PROTO_VERSION:
3018 return sc->min_proto_version;
3019 case SSL_CTRL_SET_MAX_PROTO_VERSION:
3020 return ssl_check_allowed_versions(sc->min_proto_version, larg)
3021 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
3022 &sc->max_proto_version);
3023 case SSL_CTRL_GET_MAX_PROTO_VERSION:
3024 return sc->max_proto_version;
3027 return SSL_ctrl((SSL *)sc, cmd, larg, parg);
3029 return s->method->ssl_ctrl(s, cmd, larg, parg);
3033 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
3035 return s->method->ssl_callback_ctrl(s, cmd, fp);
3038 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
3040 return ctx->sessions;
3043 static int ssl_tsan_load(SSL_CTX *ctx, TSAN_QUALIFIER int *stat)
3047 if (ssl_tsan_lock(ctx)) {
3048 res = tsan_load(stat);
3049 ssl_tsan_unlock(ctx);
3054 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
3057 /* For some cases with ctx == NULL perform syntax checks */
3060 case SSL_CTRL_SET_GROUPS_LIST:
3061 return tls1_set_groups_list(ctx, NULL, NULL, parg);
3062 case SSL_CTRL_SET_SIGALGS_LIST:
3063 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
3064 return tls1_set_sigalgs_list(NULL, parg, 0);
3071 case SSL_CTRL_GET_READ_AHEAD:
3072 return ctx->read_ahead;
3073 case SSL_CTRL_SET_READ_AHEAD:
3074 l = ctx->read_ahead;
3075 ctx->read_ahead = larg;
3078 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
3079 ctx->msg_callback_arg = parg;
3082 case SSL_CTRL_GET_MAX_CERT_LIST:
3083 return (long)ctx->max_cert_list;
3084 case SSL_CTRL_SET_MAX_CERT_LIST:
3087 l = (long)ctx->max_cert_list;
3088 ctx->max_cert_list = (size_t)larg;
3091 case SSL_CTRL_SET_SESS_CACHE_SIZE:
3094 l = (long)ctx->session_cache_size;
3095 ctx->session_cache_size = (size_t)larg;
3097 case SSL_CTRL_GET_SESS_CACHE_SIZE:
3098 return (long)ctx->session_cache_size;
3099 case SSL_CTRL_SET_SESS_CACHE_MODE:
3100 l = ctx->session_cache_mode;
3101 ctx->session_cache_mode = larg;
3103 case SSL_CTRL_GET_SESS_CACHE_MODE:
3104 return ctx->session_cache_mode;
3106 case SSL_CTRL_SESS_NUMBER:
3107 return lh_SSL_SESSION_num_items(ctx->sessions);
3108 case SSL_CTRL_SESS_CONNECT:
3109 return ssl_tsan_load(ctx, &ctx->stats.sess_connect);
3110 case SSL_CTRL_SESS_CONNECT_GOOD:
3111 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_good);
3112 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
3113 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_renegotiate);
3114 case SSL_CTRL_SESS_ACCEPT:
3115 return ssl_tsan_load(ctx, &ctx->stats.sess_accept);
3116 case SSL_CTRL_SESS_ACCEPT_GOOD:
3117 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_good);
3118 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
3119 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_renegotiate);
3120 case SSL_CTRL_SESS_HIT:
3121 return ssl_tsan_load(ctx, &ctx->stats.sess_hit);
3122 case SSL_CTRL_SESS_CB_HIT:
3123 return ssl_tsan_load(ctx, &ctx->stats.sess_cb_hit);
3124 case SSL_CTRL_SESS_MISSES:
3125 return ssl_tsan_load(ctx, &ctx->stats.sess_miss);
3126 case SSL_CTRL_SESS_TIMEOUTS:
3127 return ssl_tsan_load(ctx, &ctx->stats.sess_timeout);
3128 case SSL_CTRL_SESS_CACHE_FULL:
3129 return ssl_tsan_load(ctx, &ctx->stats.sess_cache_full);
3131 return (ctx->mode |= larg);
3132 case SSL_CTRL_CLEAR_MODE:
3133 return (ctx->mode &= ~larg);
3134 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
3135 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
3137 ctx->max_send_fragment = larg;
3138 if (ctx->max_send_fragment < ctx->split_send_fragment)
3139 ctx->split_send_fragment = ctx->max_send_fragment;
3141 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
3142 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
3144 ctx->split_send_fragment = larg;
3146 case SSL_CTRL_SET_MAX_PIPELINES:
3147 if (larg < 1 || larg > SSL_MAX_PIPELINES)
3149 ctx->max_pipelines = larg;
3151 case SSL_CTRL_CERT_FLAGS:
3152 return (ctx->cert->cert_flags |= larg);
3153 case SSL_CTRL_CLEAR_CERT_FLAGS:
3154 return (ctx->cert->cert_flags &= ~larg);
3155 case SSL_CTRL_SET_MIN_PROTO_VERSION:
3156 return ssl_check_allowed_versions(larg, ctx->max_proto_version)
3157 && ssl_set_version_bound(ctx->method->version, (int)larg,
3158 &ctx->min_proto_version);
3159 case SSL_CTRL_GET_MIN_PROTO_VERSION:
3160 return ctx->min_proto_version;
3161 case SSL_CTRL_SET_MAX_PROTO_VERSION:
3162 return ssl_check_allowed_versions(ctx->min_proto_version, larg)
3163 && ssl_set_version_bound(ctx->method->version, (int)larg,
3164 &ctx->max_proto_version);
3165 case SSL_CTRL_GET_MAX_PROTO_VERSION:
3166 return ctx->max_proto_version;
3168 return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
3172 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
3175 case SSL_CTRL_SET_MSG_CALLBACK:
3176 ctx->msg_callback = (void (*)
3177 (int write_p, int version, int content_type,
3178 const void *buf, size_t len, SSL *ssl,
3183 return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
3187 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
3196 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
3197 const SSL_CIPHER *const *bp)
3199 if ((*ap)->id > (*bp)->id)
3201 if ((*ap)->id < (*bp)->id)
3207 * return a STACK of the ciphers available for the SSL and in order of
3210 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
3212 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3215 if (sc->cipher_list != NULL) {
3216 return sc->cipher_list;
3217 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
3218 return s->ctx->cipher_list;
3224 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
3226 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3228 if (sc == NULL || !sc->server)
3230 return sc->peer_ciphers;
3233 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
3235 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
3237 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3242 ciphers = SSL_get_ciphers(s);
3245 if (!ssl_set_client_disabled(sc))
3247 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
3248 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
3249 if (!ssl_cipher_disabled(sc, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
3251 sk = sk_SSL_CIPHER_new_null();
3254 if (!sk_SSL_CIPHER_push(sk, c)) {
3255 sk_SSL_CIPHER_free(sk);
3263 /** return a STACK of the ciphers available for the SSL and in order of
3265 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL_CONNECTION *s)
3268 if (s->cipher_list_by_id != NULL)
3269 return s->cipher_list_by_id;
3270 else if (s->ssl.ctx != NULL
3271 && s->ssl.ctx->cipher_list_by_id != NULL)
3272 return s->ssl.ctx->cipher_list_by_id;
3277 /** The old interface to get the same thing as SSL_get_ciphers() */
3278 const char *SSL_get_cipher_list(const SSL *s, int n)
3280 const SSL_CIPHER *c;
3281 STACK_OF(SSL_CIPHER) *sk;
3285 sk = SSL_get_ciphers(s);
3286 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
3288 c = sk_SSL_CIPHER_value(sk, n);
3294 /** return a STACK of the ciphers available for the SSL_CTX and in order of
3296 STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
3299 return ctx->cipher_list;
3304 * Distinguish between ciphers controlled by set_ciphersuite() and
3305 * set_cipher_list() when counting.
3307 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
3310 const SSL_CIPHER *c;
3314 for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
3315 c = sk_SSL_CIPHER_value(sk, i);
3316 if (c->min_tls >= TLS1_3_VERSION)
3323 /** specify the ciphers to be used by default by the SSL_CTX */
3324 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
3326 STACK_OF(SSL_CIPHER) *sk;
3328 sk = ssl_create_cipher_list(ctx, ctx->tls13_ciphersuites,
3329 &ctx->cipher_list, &ctx->cipher_list_by_id, str,
3332 * ssl_create_cipher_list may return an empty stack if it was unable to
3333 * find a cipher matching the given rule string (for example if the rule
3334 * string specifies a cipher which has been disabled). This is not an
3335 * error as far as ssl_create_cipher_list is concerned, and hence
3336 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
3340 else if (cipher_list_tls12_num(sk) == 0) {
3341 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3347 /** specify the ciphers to be used by the SSL */
3348 int SSL_set_cipher_list(SSL *s, const char *str)
3350 STACK_OF(SSL_CIPHER) *sk;
3351 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3356 sk = ssl_create_cipher_list(s->ctx, sc->tls13_ciphersuites,
3357 &sc->cipher_list, &sc->cipher_list_by_id, str,
3359 /* see comment in SSL_CTX_set_cipher_list */
3362 else if (cipher_list_tls12_num(sk) == 0) {
3363 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3369 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
3372 STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
3373 const SSL_CIPHER *c;
3375 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3381 || sc->peer_ciphers == NULL
3386 clntsk = sc->peer_ciphers;
3387 srvrsk = SSL_get_ciphers(s);
3388 if (clntsk == NULL || srvrsk == NULL)
3391 if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
3394 for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
3397 c = sk_SSL_CIPHER_value(clntsk, i);
3398 if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
3401 n = OPENSSL_strnlen(c->name, size);
3408 memcpy(p, c->name, n);
3418 * Return the requested servername (SNI) value. Note that the behaviour varies
3420 * - whether this is called by the client or the server,
3421 * - if we are before or during/after the handshake,
3422 * - if a resumption or normal handshake is being attempted/has occurred
3423 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
3425 * Note that only the host_name type is defined (RFC 3546).
3427 const char *SSL_get_servername(const SSL *s, const int type)
3429 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3436 * If we don't know if we are the client or the server yet then we assume
3439 server = sc->handshake_func == NULL ? 0 : sc->server;
3441 if (type != TLSEXT_NAMETYPE_host_name)
3447 * In TLSv1.3 on the server SNI is not associated with the session
3448 * but in TLSv1.2 or below it is.
3450 * Before the handshake:
3453 * During/after the handshake (TLSv1.2 or below resumption occurred):
3454 * - If a servername was accepted by the server in the original
3455 * handshake then it will return that servername, or NULL otherwise.
3457 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3458 * - The function will return the servername requested by the client in
3459 * this handshake or NULL if none was requested.
3461 if (sc->hit && !SSL_CONNECTION_IS_TLS13(sc))
3462 return sc->session->ext.hostname;
3467 * Before the handshake:
3468 * - If a servername has been set via a call to
3469 * SSL_set_tlsext_host_name() then it will return that servername
3470 * - If one has not been set, but a TLSv1.2 resumption is being
3471 * attempted and the session from the original handshake had a
3472 * servername accepted by the server then it will return that
3474 * - Otherwise it returns NULL
3476 * During/after the handshake (TLSv1.2 or below resumption occurred):
3477 * - If the session from the original handshake had a servername accepted
3478 * by the server then it will return that servername.
3479 * - Otherwise it returns the servername set via
3480 * SSL_set_tlsext_host_name() (or NULL if it was not called).
3482 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3483 * - It will return the servername set via SSL_set_tlsext_host_name()
3484 * (or NULL if it was not called).
3486 if (SSL_in_before(s)) {
3487 if (sc->ext.hostname == NULL
3488 && sc->session != NULL
3489 && sc->session->ssl_version != TLS1_3_VERSION)
3490 return sc->session->ext.hostname;
3492 if (!SSL_CONNECTION_IS_TLS13(sc) && sc->hit
3493 && sc->session->ext.hostname != NULL)
3494 return sc->session->ext.hostname;
3498 return sc->ext.hostname;
3501 int SSL_get_servername_type(const SSL *s)
3503 if (SSL_get_servername(s, TLSEXT_NAMETYPE_host_name) != NULL)
3504 return TLSEXT_NAMETYPE_host_name;
3509 * SSL_select_next_proto implements the standard protocol selection. It is
3510 * expected that this function is called from the callback set by
3511 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
3512 * vector of 8-bit, length prefixed byte strings. The length byte itself is
3513 * not included in the length. A byte string of length 0 is invalid. No byte
3514 * string may be truncated. The current, but experimental algorithm for
3515 * selecting the protocol is: 1) If the server doesn't support NPN then this
3516 * is indicated to the callback. In this case, the client application has to
3517 * abort the connection or have a default application level protocol. 2) If
3518 * the server supports NPN, but advertises an empty list then the client
3519 * selects the first protocol in its list, but indicates via the API that this
3520 * fallback case was enacted. 3) Otherwise, the client finds the first
3521 * protocol in the server's list that it supports and selects this protocol.
3522 * This is because it's assumed that the server has better information about
3523 * which protocol a client should use. 4) If the client doesn't support any
3524 * of the server's advertised protocols, then this is treated the same as
3525 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
3526 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
3528 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
3529 const unsigned char *server,
3530 unsigned int server_len,
3531 const unsigned char *client, unsigned int client_len)
3534 const unsigned char *result;
3535 int status = OPENSSL_NPN_UNSUPPORTED;
3538 * For each protocol in server preference order, see if we support it.
3540 for (i = 0; i < server_len;) {
3541 for (j = 0; j < client_len;) {
3542 if (server[i] == client[j] &&
3543 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
3544 /* We found a match */
3545 result = &server[i];
3546 status = OPENSSL_NPN_NEGOTIATED;
3556 /* There's no overlap between our protocols and the server's list. */
3558 status = OPENSSL_NPN_NO_OVERLAP;
3561 *out = (unsigned char *)result + 1;
3562 *outlen = result[0];
3566 #ifndef OPENSSL_NO_NEXTPROTONEG
3568 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
3569 * client's requested protocol for this connection and returns 0. If the
3570 * client didn't request any protocol, then *data is set to NULL. Note that
3571 * the client can request any protocol it chooses. The value returned from
3572 * this function need not be a member of the list of supported protocols
3573 * provided by the callback.
3575 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
3578 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3581 /* We have no other way to indicate error */
3587 *data = sc->ext.npn;
3588 if (*data == NULL) {
3591 *len = (unsigned int)sc->ext.npn_len;
3596 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
3597 * a TLS server needs a list of supported protocols for Next Protocol
3598 * Negotiation. The returned list must be in wire format. The list is
3599 * returned by setting |out| to point to it and |outlen| to its length. This
3600 * memory will not be modified, but one should assume that the SSL* keeps a
3601 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
3602 * wishes to advertise. Otherwise, no such extension will be included in the
3605 void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
3606 SSL_CTX_npn_advertised_cb_func cb,
3609 if (IS_QUIC_CTX(ctx))
3610 /* NPN not allowed for QUIC */
3613 ctx->ext.npn_advertised_cb = cb;
3614 ctx->ext.npn_advertised_cb_arg = arg;
3618 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
3619 * client needs to select a protocol from the server's provided list. |out|
3620 * must be set to point to the selected protocol (which may be within |in|).
3621 * The length of the protocol name must be written into |outlen|. The
3622 * server's advertised protocols are provided in |in| and |inlen|. The
3623 * callback can assume that |in| is syntactically valid. The client must
3624 * select a protocol. It is fatal to the connection if this callback returns
3625 * a value other than SSL_TLSEXT_ERR_OK.
3627 void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
3628 SSL_CTX_npn_select_cb_func cb,
3631 if (IS_QUIC_CTX(ctx))
3632 /* NPN not allowed for QUIC */
3635 ctx->ext.npn_select_cb = cb;
3636 ctx->ext.npn_select_cb_arg = arg;
3640 static int alpn_value_ok(const unsigned char *protos, unsigned int protos_len)
3644 if (protos_len < 2 || protos == NULL)
3647 for (idx = 0; idx < protos_len; idx += protos[idx] + 1) {
3648 if (protos[idx] == 0)
3651 return idx == protos_len;
3654 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
3655 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3656 * length-prefixed strings). Returns 0 on success.
3658 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
3659 unsigned int protos_len)
3661 unsigned char *alpn;
3663 if (protos_len == 0 || protos == NULL) {
3664 OPENSSL_free(ctx->ext.alpn);
3665 ctx->ext.alpn = NULL;
3666 ctx->ext.alpn_len = 0;
3669 /* Not valid per RFC */
3670 if (!alpn_value_ok(protos, protos_len))
3673 alpn = OPENSSL_memdup(protos, protos_len);
3676 OPENSSL_free(ctx->ext.alpn);
3677 ctx->ext.alpn = alpn;
3678 ctx->ext.alpn_len = protos_len;
3684 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
3685 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3686 * length-prefixed strings). Returns 0 on success.
3688 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
3689 unsigned int protos_len)
3691 unsigned char *alpn;
3692 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
3697 if (protos_len == 0 || protos == NULL) {
3698 OPENSSL_free(sc->ext.alpn);
3699 sc->ext.alpn = NULL;
3700 sc->ext.alpn_len = 0;
3703 /* Not valid per RFC */
3704 if (!alpn_value_ok(protos, protos_len))
3707 alpn = OPENSSL_memdup(protos, protos_len);
3710 OPENSSL_free(sc->ext.alpn);
3711 sc->ext.alpn = alpn;
3712 sc->ext.alpn_len = protos_len;
3718 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3719 * called during ClientHello processing in order to select an ALPN protocol
3720 * from the client's list of offered protocols.
3722 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
3723 SSL_CTX_alpn_select_cb_func cb,
3726 ctx->ext.alpn_select_cb = cb;
3727 ctx->ext.alpn_select_cb_arg = arg;
3731 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3732 * On return it sets |*data| to point to |*len| bytes of protocol name
3733 * (not including the leading length-prefix byte). If the server didn't
3734 * respond with a negotiated protocol then |*len| will be zero.
3736 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
3739 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
3742 /* We have no other way to indicate error */
3748 *data = sc->s3.alpn_selected;
3752 *len = (unsigned int)sc->s3.alpn_selected_len;
3755 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
3756 const char *label, size_t llen,
3757 const unsigned char *context, size_t contextlen,
3760 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3765 if (sc->session == NULL
3766 || (sc->version < TLS1_VERSION && sc->version != DTLS1_BAD_VER))
3769 return s->method->ssl3_enc->export_keying_material(sc, out, olen, label,
3771 contextlen, use_context);
3774 int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
3775 const char *label, size_t llen,
3776 const unsigned char *context,
3779 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3784 if (sc->version != TLS1_3_VERSION)
3787 return tls13_export_keying_material_early(sc, out, olen, label, llen,
3788 context, contextlen);
3791 static unsigned long ssl_session_hash(const SSL_SESSION *a)
3793 const unsigned char *session_id = a->session_id;
3795 unsigned char tmp_storage[4];
3797 if (a->session_id_length < sizeof(tmp_storage)) {
3798 memset(tmp_storage, 0, sizeof(tmp_storage));
3799 memcpy(tmp_storage, a->session_id, a->session_id_length);
3800 session_id = tmp_storage;
3804 ((unsigned long)session_id[0]) |
3805 ((unsigned long)session_id[1] << 8L) |
3806 ((unsigned long)session_id[2] << 16L) |
3807 ((unsigned long)session_id[3] << 24L);
3812 * NB: If this function (or indeed the hash function which uses a sort of
3813 * coarser function than this one) is changed, ensure
3814 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3815 * being able to construct an SSL_SESSION that will collide with any existing
3816 * session with a matching session ID.
3818 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
3820 if (a->ssl_version != b->ssl_version)
3822 if (a->session_id_length != b->session_id_length)
3824 return memcmp(a->session_id, b->session_id, a->session_id_length);
3828 * These wrapper functions should remain rather than redeclaring
3829 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3830 * variable. The reason is that the functions aren't static, they're exposed
3834 SSL_CTX *SSL_CTX_new_ex(OSSL_LIB_CTX *libctx, const char *propq,
3835 const SSL_METHOD *meth)
3837 SSL_CTX *ret = NULL;
3838 #ifndef OPENSSL_NO_COMP_ALG
3843 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_METHOD_PASSED);
3847 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
3850 /* Doing this for the run once effect */
3851 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3852 ERR_raise(ERR_LIB_SSL, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
3856 ret = OPENSSL_zalloc(sizeof(*ret));
3860 /* Init the reference counting before any call to SSL_CTX_free */
3861 if (!CRYPTO_NEW_REF(&ret->references, 1)) {
3866 ret->lock = CRYPTO_THREAD_lock_new();
3867 if (ret->lock == NULL) {
3868 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3872 #ifdef TSAN_REQUIRES_LOCKING
3873 ret->tsan_lock = CRYPTO_THREAD_lock_new();
3874 if (ret->tsan_lock == NULL) {
3875 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3880 ret->libctx = libctx;
3881 if (propq != NULL) {
3882 ret->propq = OPENSSL_strdup(propq);
3883 if (ret->propq == NULL)
3888 ret->min_proto_version = 0;
3889 ret->max_proto_version = 0;
3890 ret->mode = SSL_MODE_AUTO_RETRY;
3891 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
3892 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
3893 /* We take the system default. */
3894 ret->session_timeout = meth->get_timeout();
3895 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
3896 ret->verify_mode = SSL_VERIFY_NONE;
3898 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
3899 if (ret->sessions == NULL) {
3900 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3903 ret->cert_store = X509_STORE_new();
3904 if (ret->cert_store == NULL) {
3905 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3908 #ifndef OPENSSL_NO_CT
3909 ret->ctlog_store = CTLOG_STORE_new_ex(libctx, propq);
3910 if (ret->ctlog_store == NULL) {
3911 ERR_raise(ERR_LIB_SSL, ERR_R_CT_LIB);
3916 /* initialize cipher/digest methods table */
3917 if (!ssl_load_ciphers(ret)) {
3918 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3922 if (!ssl_load_groups(ret)) {
3923 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3927 /* load provider sigalgs */
3928 if (!ssl_load_sigalgs(ret)) {
3929 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3933 /* initialise sig algs */
3934 if (!ssl_setup_sigalgs(ret)) {
3935 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3939 if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites())) {
3940 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3944 if ((ret->cert = ssl_cert_new(SSL_PKEY_NUM + ret->sigalg_list_len)) == NULL) {
3945 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3949 if (!ssl_create_cipher_list(ret,
3950 ret->tls13_ciphersuites,
3951 &ret->cipher_list, &ret->cipher_list_by_id,
3952 OSSL_default_cipher_list(), ret->cert)
3953 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
3954 ERR_raise(ERR_LIB_SSL, SSL_R_LIBRARY_HAS_NO_CIPHERS);
3958 ret->param = X509_VERIFY_PARAM_new();
3959 if (ret->param == NULL) {
3960 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3965 * If these aren't available from the provider we'll get NULL returns.
3966 * That's fine but will cause errors later if SSLv3 is negotiated
3968 ret->md5 = ssl_evp_md_fetch(libctx, NID_md5, propq);
3969 ret->sha1 = ssl_evp_md_fetch(libctx, NID_sha1, propq);
3971 if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL) {
3972 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3976 if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL) {
3977 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3981 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) {
3982 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3986 if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
3989 /* No compression for DTLS */
3990 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
3991 ret->comp_methods = SSL_COMP_get_compression_methods();
3993 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3994 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3996 /* Setup RFC5077 ticket keys */
3997 if ((RAND_bytes_ex(libctx, ret->ext.tick_key_name,
3998 sizeof(ret->ext.tick_key_name), 0) <= 0)
3999 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_hmac_key,
4000 sizeof(ret->ext.secure->tick_hmac_key), 0) <= 0)
4001 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_aes_key,
4002 sizeof(ret->ext.secure->tick_aes_key), 0) <= 0))
4003 ret->options |= SSL_OP_NO_TICKET;
4005 if (RAND_priv_bytes_ex(libctx, ret->ext.cookie_hmac_key,
4006 sizeof(ret->ext.cookie_hmac_key), 0) <= 0) {
4007 ERR_raise(ERR_LIB_SSL, ERR_R_RAND_LIB);
4011 #ifndef OPENSSL_NO_SRP
4012 if (!ssl_ctx_srp_ctx_init_intern(ret)) {
4013 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
4017 #ifndef OPENSSL_NO_ENGINE
4018 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
4019 # define eng_strx(x) #x
4020 # define eng_str(x) eng_strx(x)
4021 /* Use specific client engine automatically... ignore errors */
4024 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
4027 ENGINE_load_builtin_engines();
4028 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
4030 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
4036 #ifndef OPENSSL_NO_COMP_ALG
4038 * Set the default order: brotli, zlib, zstd
4039 * Including only those enabled algorithms
4041 memset(ret->cert_comp_prefs, 0, sizeof(ret->cert_comp_prefs));
4043 if (ossl_comp_has_alg(TLSEXT_comp_cert_brotli))
4044 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_brotli;
4045 if (ossl_comp_has_alg(TLSEXT_comp_cert_zlib))
4046 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zlib;
4047 if (ossl_comp_has_alg(TLSEXT_comp_cert_zstd))
4048 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zstd;
4051 * Disable compression by default to prevent CRIME. Applications can
4052 * re-enable compression by configuring
4053 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
4054 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
4055 * middlebox compatibility by default. This may be disabled by default in
4056 * a later OpenSSL version.
4058 ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
4060 ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
4063 * We cannot usefully set a default max_early_data here (which gets
4064 * propagated in SSL_new(), for the following reason: setting the
4065 * SSL field causes tls_construct_stoc_early_data() to tell the
4066 * client that early data will be accepted when constructing a TLS 1.3
4067 * session ticket, and the client will accordingly send us early data
4068 * when using that ticket (if the client has early data to send).
4069 * However, in order for the early data to actually be consumed by
4070 * the application, the application must also have calls to
4071 * SSL_read_early_data(); otherwise we'll just skip past the early data
4072 * and ignore it. So, since the application must add calls to
4073 * SSL_read_early_data(), we also require them to add
4074 * calls to SSL_CTX_set_max_early_data() in order to use early data,
4075 * eliminating the bandwidth-wasting early data in the case described
4078 ret->max_early_data = 0;
4081 * Default recv_max_early_data is a fully loaded single record. Could be
4082 * split across multiple records in practice. We set this differently to
4083 * max_early_data so that, in the default case, we do not advertise any
4084 * support for early_data, but if a client were to send us some (e.g.
4085 * because of an old, stale ticket) then we will tolerate it and skip over
4088 ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
4090 /* By default we send two session tickets automatically in TLSv1.3 */
4091 ret->num_tickets = 2;
4093 ssl_ctx_system_config(ret);
4101 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
4103 return SSL_CTX_new_ex(NULL, NULL, meth);
4106 int SSL_CTX_up_ref(SSL_CTX *ctx)
4110 if (CRYPTO_UP_REF(&ctx->references, &i) <= 0)
4113 REF_PRINT_COUNT("SSL_CTX", ctx);
4114 REF_ASSERT_ISNT(i < 2);
4115 return ((i > 1) ? 1 : 0);
4118 void SSL_CTX_free(SSL_CTX *a)
4126 CRYPTO_DOWN_REF(&a->references, &i);
4127 REF_PRINT_COUNT("SSL_CTX", a);
4130 REF_ASSERT_ISNT(i < 0);
4132 X509_VERIFY_PARAM_free(a->param);
4133 dane_ctx_final(&a->dane);
4136 * Free internal session cache. However: the remove_cb() may reference
4137 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
4138 * after the sessions were flushed.
4139 * As the ex_data handling routines might also touch the session cache,
4140 * the most secure solution seems to be: empty (flush) the cache, then
4141 * free ex_data, then finally free the cache.
4142 * (See ticket [openssl.org #212].)
4144 if (a->sessions != NULL)
4145 SSL_CTX_flush_sessions(a, 0);
4147 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
4148 lh_SSL_SESSION_free(a->sessions);
4149 X509_STORE_free(a->cert_store);
4150 #ifndef OPENSSL_NO_CT
4151 CTLOG_STORE_free(a->ctlog_store);
4153 sk_SSL_CIPHER_free(a->cipher_list);
4154 sk_SSL_CIPHER_free(a->cipher_list_by_id);
4155 sk_SSL_CIPHER_free(a->tls13_ciphersuites);
4156 ssl_cert_free(a->cert);
4157 sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
4158 sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
4159 OSSL_STACK_OF_X509_free(a->extra_certs);
4160 a->comp_methods = NULL;
4161 #ifndef OPENSSL_NO_SRTP
4162 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
4164 #ifndef OPENSSL_NO_SRP
4165 ssl_ctx_srp_ctx_free_intern(a);
4167 #ifndef OPENSSL_NO_ENGINE
4168 tls_engine_finish(a->client_cert_engine);
4171 OPENSSL_free(a->ext.ecpointformats);
4172 OPENSSL_free(a->ext.supportedgroups);
4173 OPENSSL_free(a->ext.supported_groups_default);
4174 OPENSSL_free(a->ext.alpn);
4175 OPENSSL_secure_free(a->ext.secure);
4177 ssl_evp_md_free(a->md5);
4178 ssl_evp_md_free(a->sha1);
4180 for (j = 0; j < SSL_ENC_NUM_IDX; j++)
4181 ssl_evp_cipher_free(a->ssl_cipher_methods[j]);
4182 for (j = 0; j < SSL_MD_NUM_IDX; j++)
4183 ssl_evp_md_free(a->ssl_digest_methods[j]);
4184 for (j = 0; j < a->group_list_len; j++) {
4185 OPENSSL_free(a->group_list[j].tlsname);
4186 OPENSSL_free(a->group_list[j].realname);
4187 OPENSSL_free(a->group_list[j].algorithm);
4189 OPENSSL_free(a->group_list);
4190 for (j = 0; j < a->sigalg_list_len; j++) {
4191 OPENSSL_free(a->sigalg_list[j].name);
4192 OPENSSL_free(a->sigalg_list[j].sigalg_name);
4193 OPENSSL_free(a->sigalg_list[j].sigalg_oid);
4194 OPENSSL_free(a->sigalg_list[j].sig_name);
4195 OPENSSL_free(a->sigalg_list[j].sig_oid);
4196 OPENSSL_free(a->sigalg_list[j].hash_name);
4197 OPENSSL_free(a->sigalg_list[j].hash_oid);
4198 OPENSSL_free(a->sigalg_list[j].keytype);
4199 OPENSSL_free(a->sigalg_list[j].keytype_oid);
4201 OPENSSL_free(a->sigalg_list);
4202 OPENSSL_free(a->ssl_cert_info);
4204 OPENSSL_free(a->sigalg_lookup_cache);
4205 OPENSSL_free(a->tls12_sigalgs);
4207 OPENSSL_free(a->client_cert_type);
4208 OPENSSL_free(a->server_cert_type);
4210 CRYPTO_THREAD_lock_free(a->lock);
4211 CRYPTO_FREE_REF(&a->references);
4212 #ifdef TSAN_REQUIRES_LOCKING
4213 CRYPTO_THREAD_lock_free(a->tsan_lock);
4216 OPENSSL_free(a->propq);
4217 #ifndef OPENSSL_NO_QLOG
4218 OPENSSL_free(a->qlog_title);
4224 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
4226 ctx->default_passwd_callback = cb;
4229 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
4231 ctx->default_passwd_callback_userdata = u;
4234 pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
4236 return ctx->default_passwd_callback;
4239 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
4241 return ctx->default_passwd_callback_userdata;
4244 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
4246 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4251 sc->default_passwd_callback = cb;
4254 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
4256 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4261 sc->default_passwd_callback_userdata = u;
4264 pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
4266 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4271 return sc->default_passwd_callback;
4274 void *SSL_get_default_passwd_cb_userdata(SSL *s)
4276 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4281 return sc->default_passwd_callback_userdata;
4284 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
4285 int (*cb) (X509_STORE_CTX *, void *),
4288 ctx->app_verify_callback = cb;
4289 ctx->app_verify_arg = arg;
4292 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
4293 int (*cb) (int, X509_STORE_CTX *))
4295 ctx->verify_mode = mode;
4296 ctx->default_verify_callback = cb;
4299 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
4301 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
4304 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
4306 ssl_cert_set_cert_cb(c->cert, cb, arg);
4309 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
4311 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4316 ssl_cert_set_cert_cb(sc->cert, cb, arg);
4319 void ssl_set_masks(SSL_CONNECTION *s)
4322 uint32_t *pvalid = s->s3.tmp.valid_flags;
4323 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
4324 unsigned long mask_k, mask_a;
4325 int have_ecc_cert, ecdsa_ok;
4330 dh_tmp = (c->dh_tmp != NULL
4331 || c->dh_tmp_cb != NULL
4334 rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4335 rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4336 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
4337 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
4341 OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
4342 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
4344 #ifndef OPENSSL_NO_GOST
4345 if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
4346 mask_k |= SSL_kGOST | SSL_kGOST18;
4347 mask_a |= SSL_aGOST12;
4349 if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
4350 mask_k |= SSL_kGOST | SSL_kGOST18;
4351 mask_a |= SSL_aGOST12;
4353 if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
4354 mask_k |= SSL_kGOST;
4355 mask_a |= SSL_aGOST01;
4366 * If we only have an RSA-PSS certificate allow RSA authentication
4367 * if TLS 1.2 and peer supports it.
4370 if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
4371 && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
4372 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION))
4379 mask_a |= SSL_aNULL;
4382 * You can do anything with an RPK key, since there's no cert to restrict it
4383 * But we need to check for private keys
4385 if (pvalid[SSL_PKEY_RSA] & CERT_PKEY_RPK) {
4389 if (pvalid[SSL_PKEY_ECC] & CERT_PKEY_RPK)
4390 mask_a |= SSL_aECDSA;
4391 if (TLS1_get_version(&s->ssl) == TLS1_2_VERSION) {
4392 if (pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_RPK)
4394 if (pvalid[SSL_PKEY_ED25519] & CERT_PKEY_RPK
4395 || pvalid[SSL_PKEY_ED448] & CERT_PKEY_RPK)
4396 mask_a |= SSL_aECDSA;
4400 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
4401 * depending on the key usage extension.
4403 if (have_ecc_cert) {
4405 ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
4406 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
4407 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
4410 mask_a |= SSL_aECDSA;
4412 /* Allow Ed25519 for TLS 1.2 if peer supports it */
4413 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
4414 && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
4415 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4416 mask_a |= SSL_aECDSA;
4418 /* Allow Ed448 for TLS 1.2 if peer supports it */
4419 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
4420 && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
4421 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4422 mask_a |= SSL_aECDSA;
4424 mask_k |= SSL_kECDHE;
4426 #ifndef OPENSSL_NO_PSK
4429 if (mask_k & SSL_kRSA)
4430 mask_k |= SSL_kRSAPSK;
4431 if (mask_k & SSL_kDHE)
4432 mask_k |= SSL_kDHEPSK;
4433 if (mask_k & SSL_kECDHE)
4434 mask_k |= SSL_kECDHEPSK;
4437 s->s3.tmp.mask_k = mask_k;
4438 s->s3.tmp.mask_a = mask_a;
4441 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CONNECTION *s)
4443 if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
4444 /* key usage, if present, must allow signing */
4445 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
4446 ERR_raise(ERR_LIB_SSL, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
4450 return 1; /* all checks are ok */
4453 int ssl_get_server_cert_serverinfo(SSL_CONNECTION *s,
4454 const unsigned char **serverinfo,
4455 size_t *serverinfo_length)
4457 CERT_PKEY *cpk = s->s3.tmp.cert;
4458 *serverinfo_length = 0;
4460 if (cpk == NULL || cpk->serverinfo == NULL)
4463 *serverinfo = cpk->serverinfo;
4464 *serverinfo_length = cpk->serverinfo_length;
4468 void ssl_update_cache(SSL_CONNECTION *s, int mode)
4473 * If the session_id_length is 0, we are not supposed to cache it, and it
4474 * would be rather hard to do anyway :-)
4476 if (s->session->session_id_length == 0)
4480 * If sid_ctx_length is 0 there is no specific application context
4481 * associated with this session, so when we try to resume it and
4482 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
4483 * indication that this is actually a session for the proper application
4484 * context, and the *handshake* will fail, not just the resumption attempt.
4485 * Do not cache (on the server) these sessions that are not resumable
4486 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
4488 if (s->server && s->session->sid_ctx_length == 0
4489 && (s->verify_mode & SSL_VERIFY_PEER) != 0)
4492 i = s->session_ctx->session_cache_mode;
4494 && (!s->hit || SSL_CONNECTION_IS_TLS13(s))) {
4496 * Add the session to the internal cache. In server side TLSv1.3 we
4497 * normally don't do this because by default it's a full stateless ticket
4498 * with only a dummy session id so there is no reason to cache it,
4500 * - we are doing early_data, in which case we cache so that we can
4502 * - the application has set a remove_session_cb so needs to know about
4503 * session timeout events
4504 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
4506 if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
4507 && (!SSL_CONNECTION_IS_TLS13(s)
4509 || (s->max_early_data > 0
4510 && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
4511 || s->session_ctx->remove_session_cb != NULL
4512 || (s->options & SSL_OP_NO_TICKET) != 0))
4513 SSL_CTX_add_session(s->session_ctx, s->session);
4516 * Add the session to the external cache. We do this even in server side
4517 * TLSv1.3 without early data because some applications just want to
4518 * know about the creation of a session and aren't doing a full cache.
4520 if (s->session_ctx->new_session_cb != NULL) {
4521 SSL_SESSION_up_ref(s->session);
4522 if (!s->session_ctx->new_session_cb(SSL_CONNECTION_GET_SSL(s),
4524 SSL_SESSION_free(s->session);
4528 /* auto flush every 255 connections */
4529 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
4530 TSAN_QUALIFIER int *stat;
4532 if (mode & SSL_SESS_CACHE_CLIENT)
4533 stat = &s->session_ctx->stats.sess_connect_good;
4535 stat = &s->session_ctx->stats.sess_accept_good;
4536 if ((ssl_tsan_load(s->session_ctx, stat) & 0xff) == 0xff)
4537 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
4541 const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
4546 const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
4551 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
4554 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4556 /* Not allowed for QUIC */
4558 || (s->type != SSL_TYPE_SSL_CONNECTION && s->method != meth)
4559 || (s->type == SSL_TYPE_SSL_CONNECTION && IS_QUIC_METHOD(meth)))
4562 if (s->method != meth) {
4563 const SSL_METHOD *sm = s->method;
4564 int (*hf) (SSL *) = sc->handshake_func;
4566 if (sm->version == meth->version)
4571 ret = s->method->ssl_init(s);
4574 if (hf == sm->ssl_connect)
4575 sc->handshake_func = meth->ssl_connect;
4576 else if (hf == sm->ssl_accept)
4577 sc->handshake_func = meth->ssl_accept;
4582 int SSL_get_error(const SSL *s, int i)
4584 return ossl_ssl_get_error(s, i, /*check_err=*/1);
4587 int ossl_ssl_get_error(const SSL *s, int i, int check_err)
4592 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4595 return SSL_ERROR_NONE;
4597 #ifndef OPENSSL_NO_QUIC
4599 reason = ossl_quic_get_error(s, i);
4600 if (reason != SSL_ERROR_NONE)
4606 return SSL_ERROR_SSL;
4609 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
4610 * where we do encode the error
4612 if (check_err && (l = ERR_peek_error()) != 0) {
4613 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
4614 return SSL_ERROR_SYSCALL;
4616 return SSL_ERROR_SSL;
4619 #ifndef OPENSSL_NO_QUIC
4623 if (SSL_want_read(s)) {
4624 bio = SSL_get_rbio(s);
4625 if (BIO_should_read(bio))
4626 return SSL_ERROR_WANT_READ;
4627 else if (BIO_should_write(bio))
4629 * This one doesn't make too much sense ... We never try to
4630 * write to the rbio, and an application program where rbio and
4631 * wbio are separate couldn't even know what it should wait for.
4632 * However if we ever set s->rwstate incorrectly (so that we
4633 * have SSL_want_read(s) instead of SSL_want_write(s)) and rbio
4634 * and wbio *are* the same, this test works around that bug; so
4635 * it might be safer to keep it.
4637 return SSL_ERROR_WANT_WRITE;
4638 else if (BIO_should_io_special(bio)) {
4639 reason = BIO_get_retry_reason(bio);
4640 if (reason == BIO_RR_CONNECT)
4641 return SSL_ERROR_WANT_CONNECT;
4642 else if (reason == BIO_RR_ACCEPT)
4643 return SSL_ERROR_WANT_ACCEPT;
4645 return SSL_ERROR_SYSCALL; /* unknown */
4649 if (SSL_want_write(s)) {
4651 * Access wbio directly - in order to use the buffered bio if
4655 if (BIO_should_write(bio))
4656 return SSL_ERROR_WANT_WRITE;
4657 else if (BIO_should_read(bio))
4659 * See above (SSL_want_read(s) with BIO_should_write(bio))
4661 return SSL_ERROR_WANT_READ;
4662 else if (BIO_should_io_special(bio)) {
4663 reason = BIO_get_retry_reason(bio);
4664 if (reason == BIO_RR_CONNECT)
4665 return SSL_ERROR_WANT_CONNECT;
4666 else if (reason == BIO_RR_ACCEPT)
4667 return SSL_ERROR_WANT_ACCEPT;
4669 return SSL_ERROR_SYSCALL;
4674 if (SSL_want_x509_lookup(s))
4675 return SSL_ERROR_WANT_X509_LOOKUP;
4676 if (SSL_want_retry_verify(s))
4677 return SSL_ERROR_WANT_RETRY_VERIFY;
4678 if (SSL_want_async(s))
4679 return SSL_ERROR_WANT_ASYNC;
4680 if (SSL_want_async_job(s))
4681 return SSL_ERROR_WANT_ASYNC_JOB;
4682 if (SSL_want_client_hello_cb(s))
4683 return SSL_ERROR_WANT_CLIENT_HELLO_CB;
4685 if ((sc->shutdown & SSL_RECEIVED_SHUTDOWN) &&
4686 (sc->s3.warn_alert == SSL_AD_CLOSE_NOTIFY))
4687 return SSL_ERROR_ZERO_RETURN;
4689 return SSL_ERROR_SYSCALL;
4692 static int ssl_do_handshake_intern(void *vargs)
4694 struct ssl_async_args *args = (struct ssl_async_args *)vargs;
4696 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4701 return sc->handshake_func(s);
4704 int SSL_do_handshake(SSL *s)
4707 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4709 #ifndef OPENSSL_NO_QUIC
4711 return ossl_quic_do_handshake(s);
4714 if (sc->handshake_func == NULL) {
4715 ERR_raise(ERR_LIB_SSL, SSL_R_CONNECTION_TYPE_NOT_SET);
4719 ossl_statem_check_finish_init(sc, -1);
4721 s->method->ssl_renegotiate_check(s, 0);
4723 if (SSL_in_init(s) || SSL_in_before(s)) {
4724 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
4725 struct ssl_async_args args;
4727 memset(&args, 0, sizeof(args));
4730 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
4732 ret = sc->handshake_func(s);
4738 void SSL_set_accept_state(SSL *s)
4740 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4742 #ifndef OPENSSL_NO_QUIC
4744 ossl_quic_set_accept_state(s);
4751 ossl_statem_clear(sc);
4752 sc->handshake_func = s->method->ssl_accept;
4753 /* Ignore return value. Its a void public API function */
4754 RECORD_LAYER_reset(&sc->rlayer);
4757 void SSL_set_connect_state(SSL *s)
4759 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4761 #ifndef OPENSSL_NO_QUIC
4763 ossl_quic_set_connect_state(s);
4770 ossl_statem_clear(sc);
4771 sc->handshake_func = s->method->ssl_connect;
4772 /* Ignore return value. Its a void public API function */
4773 RECORD_LAYER_reset(&sc->rlayer);
4776 int ssl_undefined_function(SSL *s)
4778 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4782 int ssl_undefined_void_function(void)
4784 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4788 int ssl_undefined_const_function(const SSL *s)
4793 const char *ssl_protocol_to_string(int version)
4797 case TLS1_3_VERSION:
4800 case TLS1_2_VERSION:
4803 case TLS1_1_VERSION:
4818 case DTLS1_2_VERSION:
4826 const char *SSL_get_version(const SSL *s)
4828 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4830 #ifndef OPENSSL_NO_QUIC
4831 /* We only support QUICv1 - so if its QUIC its QUICv1 */
4832 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
4839 return ssl_protocol_to_string(sc->version);
4842 __owur int SSL_get_handshake_rtt(const SSL *s, uint64_t *rtt)
4844 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4848 if (sc->ts_msg_write.t <= 0 || sc->ts_msg_read.t <= 0)
4849 return 0; /* data not (yet) available */
4850 if (sc->ts_msg_read.t < sc->ts_msg_write.t)
4853 *rtt = ossl_time2us(ossl_time_subtract(sc->ts_msg_read, sc->ts_msg_write));
4857 static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
4859 STACK_OF(X509_NAME) *sk;
4868 if ((sk = sk_X509_NAME_new_null()) == NULL)
4870 for (i = 0; i < sk_X509_NAME_num(src); i++) {
4871 xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
4873 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4876 if (sk_X509_NAME_insert(sk, xn, i) == 0) {
4878 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4887 SSL *SSL_dup(SSL *s)
4891 /* TODO(QUIC FUTURE): Add a SSL_METHOD function for duplication */
4892 SSL_CONNECTION *retsc;
4893 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4898 /* If we're not quiescent, just up_ref! */
4899 if (!SSL_in_init(s) || !SSL_in_before(s)) {
4900 CRYPTO_UP_REF(&s->references, &i);
4905 * Otherwise, copy configuration state, and session if set.
4907 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
4909 if ((retsc = SSL_CONNECTION_FROM_SSL_ONLY(ret)) == NULL)
4912 if (sc->session != NULL) {
4914 * Arranges to share the same session via up_ref. This "copies"
4915 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4917 if (!SSL_copy_session_id(ret, s))
4921 * No session has been established yet, so we have to expect that
4922 * s->cert or ret->cert will be changed later -- they should not both
4923 * point to the same object, and thus we can't use
4924 * SSL_copy_session_id.
4926 if (!SSL_set_ssl_method(ret, s->method))
4929 if (sc->cert != NULL) {
4930 ssl_cert_free(retsc->cert);
4931 retsc->cert = ssl_cert_dup(sc->cert);
4932 if (retsc->cert == NULL)
4936 if (!SSL_set_session_id_context(ret, sc->sid_ctx,
4937 (int)sc->sid_ctx_length))
4941 if (!ssl_dane_dup(retsc, sc))
4943 retsc->version = sc->version;
4944 retsc->options = sc->options;
4945 retsc->min_proto_version = sc->min_proto_version;
4946 retsc->max_proto_version = sc->max_proto_version;
4947 retsc->mode = sc->mode;
4948 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
4949 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
4950 retsc->msg_callback = sc->msg_callback;
4951 retsc->msg_callback_arg = sc->msg_callback_arg;
4952 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
4953 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
4954 retsc->generate_session_id = sc->generate_session_id;
4956 SSL_set_info_callback(ret, SSL_get_info_callback(s));
4958 /* copy app data, a little dangerous perhaps */
4959 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
4962 retsc->server = sc->server;
4963 if (sc->handshake_func) {
4965 SSL_set_accept_state(ret);
4967 SSL_set_connect_state(ret);
4969 retsc->shutdown = sc->shutdown;
4970 retsc->hit = sc->hit;
4972 retsc->default_passwd_callback = sc->default_passwd_callback;
4973 retsc->default_passwd_callback_userdata = sc->default_passwd_callback_userdata;
4975 X509_VERIFY_PARAM_inherit(retsc->param, sc->param);
4977 /* dup the cipher_list and cipher_list_by_id stacks */
4978 if (sc->cipher_list != NULL) {
4979 if ((retsc->cipher_list = sk_SSL_CIPHER_dup(sc->cipher_list)) == NULL)
4982 if (sc->cipher_list_by_id != NULL)
4983 if ((retsc->cipher_list_by_id = sk_SSL_CIPHER_dup(sc->cipher_list_by_id))
4987 /* Dup the client_CA list */
4988 if (!dup_ca_names(&retsc->ca_names, sc->ca_names)
4989 || !dup_ca_names(&retsc->client_ca_names, sc->client_ca_names))
4999 X509 *SSL_get_certificate(const SSL *s)
5001 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5006 if (sc->cert != NULL)
5007 return sc->cert->key->x509;
5012 EVP_PKEY *SSL_get_privatekey(const SSL *s)
5014 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5019 if (sc->cert != NULL)
5020 return sc->cert->key->privatekey;
5025 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
5027 if (ctx->cert != NULL)
5028 return ctx->cert->key->x509;
5033 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
5035 if (ctx->cert != NULL)
5036 return ctx->cert->key->privatekey;
5041 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
5043 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5048 if ((sc->session != NULL) && (sc->session->cipher != NULL))
5049 return sc->session->cipher;
5053 const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
5055 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5060 return sc->s3.tmp.new_cipher;
5063 const COMP_METHOD *SSL_get_current_compression(const SSL *s)
5065 #ifndef OPENSSL_NO_COMP
5066 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5071 return sc->rlayer.wrlmethod->get_compression(sc->rlayer.wrl);
5077 const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
5079 #ifndef OPENSSL_NO_COMP
5080 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5085 return sc->rlayer.rrlmethod->get_compression(sc->rlayer.rrl);
5091 int ssl_init_wbio_buffer(SSL_CONNECTION *s)
5095 if (s->bbio != NULL) {
5096 /* Already buffered. */
5100 bbio = BIO_new(BIO_f_buffer());
5101 if (bbio == NULL || BIO_set_read_buffer_size(bbio, 1) <= 0) {
5103 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
5107 s->wbio = BIO_push(bbio, s->wbio);
5109 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5114 int ssl_free_wbio_buffer(SSL_CONNECTION *s)
5116 /* callers ensure s is never null */
5117 if (s->bbio == NULL)
5120 s->wbio = BIO_pop(s->wbio);
5121 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5129 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
5131 ctx->quiet_shutdown = mode;
5134 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
5136 return ctx->quiet_shutdown;
5139 void SSL_set_quiet_shutdown(SSL *s, int mode)
5141 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5143 /* Not supported with QUIC */
5147 sc->quiet_shutdown = mode;
5150 int SSL_get_quiet_shutdown(const SSL *s)
5152 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5154 /* Not supported with QUIC */
5158 return sc->quiet_shutdown;
5161 void SSL_set_shutdown(SSL *s, int mode)
5163 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5165 /* Not supported with QUIC */
5169 sc->shutdown = mode;
5172 int SSL_get_shutdown(const SSL *s)
5174 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5176 #ifndef OPENSSL_NO_QUIC
5177 /* QUIC: Just indicate whether the connection was shutdown cleanly. */
5179 return ossl_quic_get_shutdown(s);
5185 return sc->shutdown;
5188 int SSL_version(const SSL *s)
5190 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5192 #ifndef OPENSSL_NO_QUIC
5193 /* We only support QUICv1 - so if its QUIC its QUICv1 */
5194 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
5195 return OSSL_QUIC1_VERSION;
5203 int SSL_client_version(const SSL *s)
5205 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5207 #ifndef OPENSSL_NO_QUIC
5208 /* We only support QUICv1 - so if its QUIC its QUICv1 */
5209 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
5210 return OSSL_QUIC1_VERSION;
5215 return sc->client_version;
5218 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
5223 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
5226 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
5228 /* TODO(QUIC FUTURE): Add support for QUIC */
5232 if (ssl->ctx == ctx)
5235 ctx = sc->session_ctx;
5236 new_cert = ssl_cert_dup(ctx->cert);
5237 if (new_cert == NULL) {
5241 if (!custom_exts_copy_flags(&new_cert->custext, &sc->cert->custext)) {
5242 ssl_cert_free(new_cert);
5246 ssl_cert_free(sc->cert);
5247 sc->cert = new_cert;
5250 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
5251 * so setter APIs must prevent invalid lengths from entering the system.
5253 if (!ossl_assert(sc->sid_ctx_length <= sizeof(sc->sid_ctx)))
5257 * If the session ID context matches that of the parent SSL_CTX,
5258 * inherit it from the new SSL_CTX as well. If however the context does
5259 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
5260 * leave it unchanged.
5262 if ((ssl->ctx != NULL) &&
5263 (sc->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
5264 (memcmp(sc->sid_ctx, ssl->ctx->sid_ctx, sc->sid_ctx_length) == 0)) {
5265 sc->sid_ctx_length = ctx->sid_ctx_length;
5266 memcpy(&sc->sid_ctx, &ctx->sid_ctx, sizeof(sc->sid_ctx));
5269 SSL_CTX_up_ref(ctx);
5270 SSL_CTX_free(ssl->ctx); /* decrement reference count */
5276 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
5278 return X509_STORE_set_default_paths_ex(ctx->cert_store, ctx->libctx,
5282 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
5284 X509_LOOKUP *lookup;
5286 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
5290 /* We ignore errors, in case the directory doesn't exist */
5293 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
5300 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
5302 X509_LOOKUP *lookup;
5304 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
5308 /* We ignore errors, in case the file doesn't exist */
5311 X509_LOOKUP_load_file_ex(lookup, NULL, X509_FILETYPE_DEFAULT, ctx->libctx,
5319 int SSL_CTX_set_default_verify_store(SSL_CTX *ctx)
5321 X509_LOOKUP *lookup;
5323 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_store());
5327 /* We ignore errors, in case the directory doesn't exist */
5330 X509_LOOKUP_add_store_ex(lookup, NULL, ctx->libctx, ctx->propq);
5337 int SSL_CTX_load_verify_file(SSL_CTX *ctx, const char *CAfile)
5339 return X509_STORE_load_file_ex(ctx->cert_store, CAfile, ctx->libctx,
5343 int SSL_CTX_load_verify_dir(SSL_CTX *ctx, const char *CApath)
5345 return X509_STORE_load_path(ctx->cert_store, CApath);
5348 int SSL_CTX_load_verify_store(SSL_CTX *ctx, const char *CAstore)
5350 return X509_STORE_load_store_ex(ctx->cert_store, CAstore, ctx->libctx,
5354 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
5357 if (CAfile == NULL && CApath == NULL)
5359 if (CAfile != NULL && !SSL_CTX_load_verify_file(ctx, CAfile))
5361 if (CApath != NULL && !SSL_CTX_load_verify_dir(ctx, CApath))
5366 void SSL_set_info_callback(SSL *ssl,
5367 void (*cb) (const SSL *ssl, int type, int val))
5369 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5374 sc->info_callback = cb;
5378 * One compiler (Diab DCC) doesn't like argument names in returned function
5381 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
5384 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5389 return sc->info_callback;
5392 void SSL_set_verify_result(SSL *ssl, long arg)
5394 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5399 sc->verify_result = arg;
5402 long SSL_get_verify_result(const SSL *ssl)
5404 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5409 return sc->verify_result;
5412 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
5414 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5420 return sizeof(sc->s3.client_random);
5421 if (outlen > sizeof(sc->s3.client_random))
5422 outlen = sizeof(sc->s3.client_random);
5423 memcpy(out, sc->s3.client_random, outlen);
5427 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
5429 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5435 return sizeof(sc->s3.server_random);
5436 if (outlen > sizeof(sc->s3.server_random))
5437 outlen = sizeof(sc->s3.server_random);
5438 memcpy(out, sc->s3.server_random, outlen);
5442 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
5443 unsigned char *out, size_t outlen)
5446 return session->master_key_length;
5447 if (outlen > session->master_key_length)
5448 outlen = session->master_key_length;
5449 memcpy(out, session->master_key, outlen);
5453 int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
5456 if (len > sizeof(sess->master_key))
5459 memcpy(sess->master_key, in, len);
5460 sess->master_key_length = len;
5465 int SSL_set_ex_data(SSL *s, int idx, void *arg)
5467 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5470 void *SSL_get_ex_data(const SSL *s, int idx)
5472 return CRYPTO_get_ex_data(&s->ex_data, idx);
5475 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
5477 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5480 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
5482 return CRYPTO_get_ex_data(&s->ex_data, idx);
5485 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
5487 return ctx->cert_store;
5490 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
5492 X509_STORE_free(ctx->cert_store);
5493 ctx->cert_store = store;
5496 void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
5499 X509_STORE_up_ref(store);
5500 SSL_CTX_set_cert_store(ctx, store);
5503 int SSL_want(const SSL *s)
5505 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5507 #ifndef OPENSSL_NO_QUIC
5509 return ossl_quic_want(s);
5518 #ifndef OPENSSL_NO_PSK
5519 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
5521 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5522 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5525 OPENSSL_free(ctx->cert->psk_identity_hint);
5526 if (identity_hint != NULL) {
5527 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5528 if (ctx->cert->psk_identity_hint == NULL)
5531 ctx->cert->psk_identity_hint = NULL;
5535 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
5537 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5542 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5543 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5546 OPENSSL_free(sc->cert->psk_identity_hint);
5547 if (identity_hint != NULL) {
5548 sc->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5549 if (sc->cert->psk_identity_hint == NULL)
5552 sc->cert->psk_identity_hint = NULL;
5556 const char *SSL_get_psk_identity_hint(const SSL *s)
5558 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5560 if (sc == NULL || sc->session == NULL)
5563 return sc->session->psk_identity_hint;
5566 const char *SSL_get_psk_identity(const SSL *s)
5568 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5570 if (sc == NULL || sc->session == NULL)
5573 return sc->session->psk_identity;
5576 void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
5578 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5583 sc->psk_client_callback = cb;
5586 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
5588 ctx->psk_client_callback = cb;
5591 void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
5593 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5598 sc->psk_server_callback = cb;
5601 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
5603 ctx->psk_server_callback = cb;
5607 void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
5609 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5614 sc->psk_find_session_cb = cb;
5617 void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
5618 SSL_psk_find_session_cb_func cb)
5620 ctx->psk_find_session_cb = cb;
5623 void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
5625 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5630 sc->psk_use_session_cb = cb;
5633 void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
5634 SSL_psk_use_session_cb_func cb)
5636 ctx->psk_use_session_cb = cb;
5639 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
5640 void (*cb) (int write_p, int version,
5641 int content_type, const void *buf,
5642 size_t len, SSL *ssl, void *arg))
5644 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5647 void SSL_set_msg_callback(SSL *ssl,
5648 void (*cb) (int write_p, int version,
5649 int content_type, const void *buf,
5650 size_t len, SSL *ssl, void *arg))
5652 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5655 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
5656 int (*cb) (SSL *ssl,
5660 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5661 (void (*)(void))cb);
5664 void SSL_set_not_resumable_session_callback(SSL *ssl,
5665 int (*cb) (SSL *ssl,
5666 int is_forward_secure))
5668 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5669 (void (*)(void))cb);
5672 void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
5673 size_t (*cb) (SSL *ssl, int type,
5674 size_t len, void *arg))
5676 ctx->record_padding_cb = cb;
5679 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
5681 ctx->record_padding_arg = arg;
5684 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
5686 return ctx->record_padding_arg;
5689 int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
5691 if (IS_QUIC_CTX(ctx) && block_size > 1)
5694 /* block size of 0 or 1 is basically no padding */
5695 if (block_size == 1)
5696 ctx->block_padding = 0;
5697 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5698 ctx->block_padding = block_size;
5704 int SSL_set_record_padding_callback(SSL *ssl,
5705 size_t (*cb) (SSL *ssl, int type,
5706 size_t len, void *arg))
5709 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
5714 b = SSL_get_wbio(ssl);
5715 if (b == NULL || !BIO_get_ktls_send(b)) {
5716 sc->rlayer.record_padding_cb = cb;
5722 void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
5724 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5729 sc->rlayer.record_padding_arg = arg;
5732 void *SSL_get_record_padding_callback_arg(const SSL *ssl)
5734 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5739 return sc->rlayer.record_padding_arg;
5742 int SSL_set_block_padding(SSL *ssl, size_t block_size)
5744 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5746 if (sc == NULL || (IS_QUIC(ssl) && block_size > 1))
5749 /* block size of 0 or 1 is basically no padding */
5750 if (block_size == 1)
5751 sc->rlayer.block_padding = 0;
5752 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5753 sc->rlayer.block_padding = block_size;
5759 int SSL_set_num_tickets(SSL *s, size_t num_tickets)
5761 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5766 sc->num_tickets = num_tickets;
5771 size_t SSL_get_num_tickets(const SSL *s)
5773 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5778 return sc->num_tickets;
5781 int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
5783 ctx->num_tickets = num_tickets;
5788 size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
5790 return ctx->num_tickets;
5793 /* Retrieve handshake hashes */
5794 int ssl_handshake_hash(SSL_CONNECTION *s,
5795 unsigned char *out, size_t outlen,
5798 EVP_MD_CTX *ctx = NULL;
5799 EVP_MD_CTX *hdgst = s->s3.handshake_dgst;
5800 int hashleni = EVP_MD_CTX_get_size(hdgst);
5803 if (hashleni < 0 || (size_t)hashleni > outlen) {
5804 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5808 ctx = EVP_MD_CTX_new();
5810 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5814 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
5815 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
5816 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5820 *hashlen = hashleni;
5824 EVP_MD_CTX_free(ctx);
5828 int SSL_session_reused(const SSL *s)
5830 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5838 int SSL_is_server(const SSL *s)
5840 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5848 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
5849 void SSL_set_debug(SSL *s, int debug)
5851 /* Old function was do-nothing anyway... */
5857 void SSL_set_security_level(SSL *s, int level)
5859 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5864 sc->cert->sec_level = level;
5867 int SSL_get_security_level(const SSL *s)
5869 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5874 return sc->cert->sec_level;
5877 void SSL_set_security_callback(SSL *s,
5878 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5879 int op, int bits, int nid,
5880 void *other, void *ex))
5882 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5887 sc->cert->sec_cb = cb;
5890 int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
5891 const SSL_CTX *ctx, int op,
5892 int bits, int nid, void *other,
5894 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5899 return sc->cert->sec_cb;
5902 void SSL_set0_security_ex_data(SSL *s, void *ex)
5904 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5909 sc->cert->sec_ex = ex;
5912 void *SSL_get0_security_ex_data(const SSL *s)
5914 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5919 return sc->cert->sec_ex;
5922 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
5924 ctx->cert->sec_level = level;
5927 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
5929 return ctx->cert->sec_level;
5932 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
5933 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5934 int op, int bits, int nid,
5935 void *other, void *ex))
5937 ctx->cert->sec_cb = cb;
5940 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
5946 return ctx->cert->sec_cb;
5949 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
5951 ctx->cert->sec_ex = ex;
5954 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
5956 return ctx->cert->sec_ex;
5959 uint64_t SSL_CTX_get_options(const SSL_CTX *ctx)
5961 return ctx->options;
5964 uint64_t SSL_get_options(const SSL *s)
5966 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5968 #ifndef OPENSSL_NO_QUIC
5970 return ossl_quic_get_options(s);
5979 uint64_t SSL_CTX_set_options(SSL_CTX *ctx, uint64_t op)
5981 return ctx->options |= op;
5984 uint64_t SSL_set_options(SSL *s, uint64_t op)
5987 OSSL_PARAM options[2], *opts = options;
5989 #ifndef OPENSSL_NO_QUIC
5991 return ossl_quic_set_options(s, op);
5994 sc = SSL_CONNECTION_FROM_SSL(s);
6000 *opts++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS,
6002 *opts = OSSL_PARAM_construct_end();
6004 /* Ignore return value */
6005 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
6006 sc->rlayer.wrlmethod->set_options(sc->rlayer.wrl, options);
6011 uint64_t SSL_CTX_clear_options(SSL_CTX *ctx, uint64_t op)
6013 return ctx->options &= ~op;
6016 uint64_t SSL_clear_options(SSL *s, uint64_t op)
6018 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6019 OSSL_PARAM options[2], *opts = options;
6021 #ifndef OPENSSL_NO_QUIC
6023 return ossl_quic_clear_options(s, op);
6031 *opts++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS,
6033 *opts = OSSL_PARAM_construct_end();
6035 /* Ignore return value */
6036 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
6037 sc->rlayer.wrlmethod->set_options(sc->rlayer.wrl, options);
6042 STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
6044 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6049 return sc->verified_chain;
6052 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
6054 #ifndef OPENSSL_NO_CT
6057 * Moves SCTs from the |src| stack to the |dst| stack.
6058 * The source of each SCT will be set to |origin|.
6059 * If |dst| points to a NULL pointer, a new stack will be created and owned by
6061 * Returns the number of SCTs moved, or a negative integer if an error occurs.
6062 * The |dst| stack is created and possibly partially populated even in case
6063 * of error, likewise the |src| stack may be left in an intermediate state.
6065 static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
6066 sct_source_t origin)
6072 *dst = sk_SCT_new_null();
6074 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6079 while ((sct = sk_SCT_pop(src)) != NULL) {
6080 if (SCT_set_source(sct, origin) != 1)
6083 if (!sk_SCT_push(*dst, sct))
6095 * Look for data collected during ServerHello and parse if found.
6096 * Returns the number of SCTs extracted.
6098 static int ct_extract_tls_extension_scts(SSL_CONNECTION *s)
6100 int scts_extracted = 0;
6102 if (s->ext.scts != NULL) {
6103 const unsigned char *p = s->ext.scts;
6104 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
6106 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
6108 SCT_LIST_free(scts);
6111 return scts_extracted;
6115 * Checks for an OCSP response and then attempts to extract any SCTs found if it
6116 * contains an SCT X509 extension. They will be stored in |s->scts|.
6118 * - The number of SCTs extracted, assuming an OCSP response exists.
6119 * - 0 if no OCSP response exists or it contains no SCTs.
6120 * - A negative integer if an error occurs.
6122 static int ct_extract_ocsp_response_scts(SSL_CONNECTION *s)
6124 # ifndef OPENSSL_NO_OCSP
6125 int scts_extracted = 0;
6126 const unsigned char *p;
6127 OCSP_BASICRESP *br = NULL;
6128 OCSP_RESPONSE *rsp = NULL;
6129 STACK_OF(SCT) *scts = NULL;
6132 if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
6135 p = s->ext.ocsp.resp;
6136 rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
6140 br = OCSP_response_get1_basic(rsp);
6144 for (i = 0; i < OCSP_resp_count(br); ++i) {
6145 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
6151 OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
6153 ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
6154 if (scts_extracted < 0)
6158 SCT_LIST_free(scts);
6159 OCSP_BASICRESP_free(br);
6160 OCSP_RESPONSE_free(rsp);
6161 return scts_extracted;
6163 /* Behave as if no OCSP response exists */
6169 * Attempts to extract SCTs from the peer certificate.
6170 * Return the number of SCTs extracted, or a negative integer if an error
6173 static int ct_extract_x509v3_extension_scts(SSL_CONNECTION *s)
6175 int scts_extracted = 0;
6176 X509 *cert = s->session != NULL ? s->session->peer : NULL;
6179 STACK_OF(SCT) *scts =
6180 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
6183 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
6185 SCT_LIST_free(scts);
6188 return scts_extracted;
6192 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
6193 * response (if it exists) and X509v3 extensions in the certificate.
6194 * Returns NULL if an error occurs.
6196 const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
6198 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6203 if (!sc->scts_parsed) {
6204 if (ct_extract_tls_extension_scts(sc) < 0 ||
6205 ct_extract_ocsp_response_scts(sc) < 0 ||
6206 ct_extract_x509v3_extension_scts(sc) < 0)
6209 sc->scts_parsed = 1;
6216 static int ct_permissive(const CT_POLICY_EVAL_CTX *ctx,
6217 const STACK_OF(SCT) *scts, void *unused_arg)
6222 static int ct_strict(const CT_POLICY_EVAL_CTX *ctx,
6223 const STACK_OF(SCT) *scts, void *unused_arg)
6225 int count = scts != NULL ? sk_SCT_num(scts) : 0;
6228 for (i = 0; i < count; ++i) {
6229 SCT *sct = sk_SCT_value(scts, i);
6230 int status = SCT_get_validation_status(sct);
6232 if (status == SCT_VALIDATION_STATUS_VALID)
6235 ERR_raise(ERR_LIB_SSL, SSL_R_NO_VALID_SCTS);
6239 int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
6242 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6248 * Since code exists that uses the custom extension handler for CT, look
6249 * for this and throw an error if they have already registered to use CT.
6251 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
6252 TLSEXT_TYPE_signed_certificate_timestamp))
6254 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
6258 if (callback != NULL) {
6260 * If we are validating CT, then we MUST accept SCTs served via OCSP
6262 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
6266 sc->ct_validation_callback = callback;
6267 sc->ct_validation_callback_arg = arg;
6272 int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
6273 ssl_ct_validation_cb callback, void *arg)
6276 * Since code exists that uses the custom extension handler for CT, look for
6277 * this and throw an error if they have already registered to use CT.
6279 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
6280 TLSEXT_TYPE_signed_certificate_timestamp))
6282 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
6286 ctx->ct_validation_callback = callback;
6287 ctx->ct_validation_callback_arg = arg;
6291 int SSL_ct_is_enabled(const SSL *s)
6293 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6298 return sc->ct_validation_callback != NULL;
6301 int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
6303 return ctx->ct_validation_callback != NULL;
6306 int ssl_validate_ct(SSL_CONNECTION *s)
6309 X509 *cert = s->session != NULL ? s->session->peer : NULL;
6311 SSL_DANE *dane = &s->dane;
6312 CT_POLICY_EVAL_CTX *ctx = NULL;
6313 const STACK_OF(SCT) *scts;
6316 * If no callback is set, the peer is anonymous, or its chain is invalid,
6317 * skip SCT validation - just return success. Applications that continue
6318 * handshakes without certificates, with unverified chains, or pinned leaf
6319 * certificates are outside the scope of the WebPKI and CT.
6321 * The above exclusions notwithstanding the vast majority of peers will
6322 * have rather ordinary certificate chains validated by typical
6323 * applications that perform certificate verification and therefore will
6324 * process SCTs when enabled.
6326 if (s->ct_validation_callback == NULL || cert == NULL ||
6327 s->verify_result != X509_V_OK ||
6328 s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
6332 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
6333 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
6335 if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
6336 switch (dane->mtlsa->usage) {
6337 case DANETLS_USAGE_DANE_TA:
6338 case DANETLS_USAGE_DANE_EE:
6343 ctx = CT_POLICY_EVAL_CTX_new_ex(SSL_CONNECTION_GET_CTX(s)->libctx,
6344 SSL_CONNECTION_GET_CTX(s)->propq);
6346 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CT_LIB);
6350 issuer = sk_X509_value(s->verified_chain, 1);
6351 CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
6352 CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
6353 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx,
6354 SSL_CONNECTION_GET_CTX(s)->ctlog_store);
6355 CT_POLICY_EVAL_CTX_set_time(
6356 ctx, (uint64_t)SSL_SESSION_get_time(s->session) * 1000);
6358 scts = SSL_get0_peer_scts(SSL_CONNECTION_GET_SSL(s));
6361 * This function returns success (> 0) only when all the SCTs are valid, 0
6362 * when some are invalid, and < 0 on various internal errors (out of
6363 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
6364 * reason to abort the handshake, that decision is up to the callback.
6365 * Therefore, we error out only in the unexpected case that the return
6366 * value is negative.
6368 * XXX: One might well argue that the return value of this function is an
6369 * unfortunate design choice. Its job is only to determine the validation
6370 * status of each of the provided SCTs. So long as it correctly separates
6371 * the wheat from the chaff it should return success. Failure in this case
6372 * ought to correspond to an inability to carry out its duties.
6374 if (SCT_LIST_validate(scts, ctx) < 0) {
6375 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_SCT_VERIFICATION_FAILED);
6379 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
6381 ret = 0; /* This function returns 0 on failure */
6383 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_CALLBACK_FAILED);
6386 CT_POLICY_EVAL_CTX_free(ctx);
6388 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
6389 * failure return code here. Also the application may wish the complete
6390 * the handshake, and then disconnect cleanly at a higher layer, after
6391 * checking the verification status of the completed connection.
6393 * We therefore force a certificate verification failure which will be
6394 * visible via SSL_get_verify_result() and cached as part of any resumed
6397 * Note: the permissive callback is for information gathering only, always
6398 * returns success, and does not affect verification status. Only the
6399 * strict callback or a custom application-specified callback can trigger
6400 * connection failure or record a verification error.
6403 s->verify_result = X509_V_ERR_NO_VALID_SCTS;
6407 int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
6409 switch (validation_mode) {
6411 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6413 case SSL_CT_VALIDATION_PERMISSIVE:
6414 return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
6415 case SSL_CT_VALIDATION_STRICT:
6416 return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
6420 int SSL_enable_ct(SSL *s, int validation_mode)
6422 switch (validation_mode) {
6424 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6426 case SSL_CT_VALIDATION_PERMISSIVE:
6427 return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
6428 case SSL_CT_VALIDATION_STRICT:
6429 return SSL_set_ct_validation_callback(s, ct_strict, NULL);
6433 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
6435 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
6438 int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
6440 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
6443 void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE *logs)
6445 CTLOG_STORE_free(ctx->ctlog_store);
6446 ctx->ctlog_store = logs;
6449 const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
6451 return ctx->ctlog_store;
6454 #endif /* OPENSSL_NO_CT */
6456 void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
6459 c->client_hello_cb = cb;
6460 c->client_hello_cb_arg = arg;
6463 int SSL_client_hello_isv2(SSL *s)
6465 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6470 if (sc->clienthello == NULL)
6472 return sc->clienthello->isv2;
6475 unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
6477 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6482 if (sc->clienthello == NULL)
6484 return sc->clienthello->legacy_version;
6487 size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out)
6489 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6494 if (sc->clienthello == NULL)
6497 *out = sc->clienthello->random;
6498 return SSL3_RANDOM_SIZE;
6501 size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
6503 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6508 if (sc->clienthello == NULL)
6511 *out = sc->clienthello->session_id;
6512 return sc->clienthello->session_id_len;
6515 size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
6517 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6522 if (sc->clienthello == NULL)
6525 *out = PACKET_data(&sc->clienthello->ciphersuites);
6526 return PACKET_remaining(&sc->clienthello->ciphersuites);
6529 size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
6531 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6536 if (sc->clienthello == NULL)
6539 *out = sc->clienthello->compressions;
6540 return sc->clienthello->compressions_len;
6543 int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
6548 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6553 if (sc->clienthello == NULL || out == NULL || outlen == NULL)
6555 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6556 ext = sc->clienthello->pre_proc_exts + i;
6565 if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL)
6567 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6568 ext = sc->clienthello->pre_proc_exts + i;
6570 if (ext->received_order >= num)
6572 present[ext->received_order] = ext->type;
6579 OPENSSL_free(present);
6583 int SSL_client_hello_get_extension_order(SSL *s, uint16_t *exts, size_t *num_exts)
6587 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6592 if (sc->clienthello == NULL || num_exts == NULL)
6594 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6595 ext = sc->clienthello->pre_proc_exts + i;
6607 if (*num_exts < num)
6609 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6610 ext = sc->clienthello->pre_proc_exts + i;
6612 if (ext->received_order >= num)
6614 exts[ext->received_order] = ext->type;
6621 int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
6626 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6631 if (sc->clienthello == NULL)
6633 for (i = 0; i < sc->clienthello->pre_proc_exts_len; ++i) {
6634 r = sc->clienthello->pre_proc_exts + i;
6635 if (r->present && r->type == type) {
6637 *out = PACKET_data(&r->data);
6639 *outlen = PACKET_remaining(&r->data);
6646 int SSL_free_buffers(SSL *ssl)
6649 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
6656 return rl->rrlmethod->free_buffers(rl->rrl)
6657 && rl->wrlmethod->free_buffers(rl->wrl);
6660 int SSL_alloc_buffers(SSL *ssl)
6663 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6668 /* QUIC always has buffers allocated. */
6674 return rl->rrlmethod->alloc_buffers(rl->rrl)
6675 && rl->wrlmethod->alloc_buffers(rl->wrl);
6678 void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
6680 ctx->keylog_callback = cb;
6683 SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
6685 return ctx->keylog_callback;
6688 static int nss_keylog_int(const char *prefix,
6690 const uint8_t *parameter_1,
6691 size_t parameter_1_len,
6692 const uint8_t *parameter_2,
6693 size_t parameter_2_len)
6696 char *cursor = NULL;
6700 SSL_CTX *sctx = SSL_CONNECTION_GET_CTX(sc);
6702 if (sctx->keylog_callback == NULL)
6706 * Our output buffer will contain the following strings, rendered with
6707 * space characters in between, terminated by a NULL character: first the
6708 * prefix, then the first parameter, then the second parameter. The
6709 * meaning of each parameter depends on the specific key material being
6710 * logged. Note that the first and second parameters are encoded in
6711 * hexadecimal, so we need a buffer that is twice their lengths.
6713 prefix_len = strlen(prefix);
6714 out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
6715 if ((out = cursor = OPENSSL_malloc(out_len)) == NULL)
6718 strcpy(cursor, prefix);
6719 cursor += prefix_len;
6722 for (i = 0; i < parameter_1_len; i++) {
6723 sprintf(cursor, "%02x", parameter_1[i]);
6728 for (i = 0; i < parameter_2_len; i++) {
6729 sprintf(cursor, "%02x", parameter_2[i]);
6734 sctx->keylog_callback(SSL_CONNECTION_GET_SSL(sc), (const char *)out);
6735 OPENSSL_clear_free(out, out_len);
6740 int ssl_log_rsa_client_key_exchange(SSL_CONNECTION *sc,
6741 const uint8_t *encrypted_premaster,
6742 size_t encrypted_premaster_len,
6743 const uint8_t *premaster,
6744 size_t premaster_len)
6746 if (encrypted_premaster_len < 8) {
6747 SSLfatal(sc, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6751 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
6752 return nss_keylog_int("RSA",
6754 encrypted_premaster,
6760 int ssl_log_secret(SSL_CONNECTION *sc,
6762 const uint8_t *secret,
6765 return nss_keylog_int(label,
6767 sc->s3.client_random,
6773 #define SSLV2_CIPHER_LEN 3
6775 int ssl_cache_cipherlist(SSL_CONNECTION *s, PACKET *cipher_suites, int sslv2format)
6779 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6781 if (PACKET_remaining(cipher_suites) == 0) {
6782 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6786 if (PACKET_remaining(cipher_suites) % n != 0) {
6787 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6791 OPENSSL_free(s->s3.tmp.ciphers_raw);
6792 s->s3.tmp.ciphers_raw = NULL;
6793 s->s3.tmp.ciphers_rawlen = 0;
6796 size_t numciphers = PACKET_remaining(cipher_suites) / n;
6797 PACKET sslv2ciphers = *cipher_suites;
6798 unsigned int leadbyte;
6802 * We store the raw ciphers list in SSLv3+ format so we need to do some
6803 * preprocessing to convert the list first. If there are any SSLv2 only
6804 * ciphersuites with a non-zero leading byte then we are going to
6805 * slightly over allocate because we won't store those. But that isn't a
6808 raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
6809 s->s3.tmp.ciphers_raw = raw;
6811 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6814 for (s->s3.tmp.ciphers_rawlen = 0;
6815 PACKET_remaining(&sslv2ciphers) > 0;
6816 raw += TLS_CIPHER_LEN) {
6817 if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
6819 && !PACKET_copy_bytes(&sslv2ciphers, raw,
6822 && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
6823 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_PACKET);
6824 OPENSSL_free(s->s3.tmp.ciphers_raw);
6825 s->s3.tmp.ciphers_raw = NULL;
6826 s->s3.tmp.ciphers_rawlen = 0;
6830 s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN;
6832 } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw,
6833 &s->s3.tmp.ciphers_rawlen)) {
6834 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6840 int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
6841 int isv2format, STACK_OF(SSL_CIPHER) **sk,
6842 STACK_OF(SSL_CIPHER) **scsvs)
6845 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6850 if (!PACKET_buf_init(&pkt, bytes, len))
6852 return ossl_bytes_to_cipher_list(sc, &pkt, sk, scsvs, isv2format, 0);
6855 int ossl_bytes_to_cipher_list(SSL_CONNECTION *s, PACKET *cipher_suites,
6856 STACK_OF(SSL_CIPHER) **skp,
6857 STACK_OF(SSL_CIPHER) **scsvs_out,
6858 int sslv2format, int fatal)
6860 const SSL_CIPHER *c;
6861 STACK_OF(SSL_CIPHER) *sk = NULL;
6862 STACK_OF(SSL_CIPHER) *scsvs = NULL;
6864 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
6865 unsigned char cipher[SSLV2_CIPHER_LEN];
6867 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6869 if (PACKET_remaining(cipher_suites) == 0) {
6871 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6873 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHERS_SPECIFIED);
6877 if (PACKET_remaining(cipher_suites) % n != 0) {
6879 SSLfatal(s, SSL_AD_DECODE_ERROR,
6880 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6882 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6886 sk = sk_SSL_CIPHER_new_null();
6887 scsvs = sk_SSL_CIPHER_new_null();
6888 if (sk == NULL || scsvs == NULL) {
6890 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6892 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6896 while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
6898 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
6899 * first byte set to zero, while true SSLv2 ciphers have a non-zero
6900 * first byte. We don't support any true SSLv2 ciphers, so skip them.
6902 if (sslv2format && cipher[0] != '\0')
6905 /* For SSLv2-compat, ignore leading 0-byte. */
6906 c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
6908 if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
6909 (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
6911 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6913 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6918 if (PACKET_remaining(cipher_suites) > 0) {
6920 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_LENGTH);
6922 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
6929 sk_SSL_CIPHER_free(sk);
6930 if (scsvs_out != NULL)
6933 sk_SSL_CIPHER_free(scsvs);
6936 sk_SSL_CIPHER_free(sk);
6937 sk_SSL_CIPHER_free(scsvs);
6941 int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
6943 ctx->max_early_data = max_early_data;
6948 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
6950 return ctx->max_early_data;
6953 int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
6955 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
6960 sc->max_early_data = max_early_data;
6965 uint32_t SSL_get_max_early_data(const SSL *s)
6967 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6972 return sc->max_early_data;
6975 int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
6977 ctx->recv_max_early_data = recv_max_early_data;
6982 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
6984 return ctx->recv_max_early_data;
6987 int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
6989 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
6994 sc->recv_max_early_data = recv_max_early_data;
6999 uint32_t SSL_get_recv_max_early_data(const SSL *s)
7001 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7006 return sc->recv_max_early_data;
7009 __owur unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION *sc)
7011 /* Return any active Max Fragment Len extension */
7012 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session))
7013 return GET_MAX_FRAGMENT_LENGTH(sc->session);
7015 /* return current SSL connection setting */
7016 return sc->max_send_fragment;
7019 __owur unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION *sc)
7021 /* Return a value regarding an active Max Fragment Len extension */
7022 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session)
7023 && sc->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(sc->session))
7024 return GET_MAX_FRAGMENT_LENGTH(sc->session);
7026 /* else limit |split_send_fragment| to current |max_send_fragment| */
7027 if (sc->split_send_fragment > sc->max_send_fragment)
7028 return sc->max_send_fragment;
7030 /* return current SSL connection setting */
7031 return sc->split_send_fragment;
7034 int SSL_stateless(SSL *s)
7037 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7042 /* Ensure there is no state left over from a previous invocation */
7048 sc->s3.flags |= TLS1_FLAGS_STATELESS;
7049 ret = SSL_accept(s);
7050 sc->s3.flags &= ~TLS1_FLAGS_STATELESS;
7052 if (ret > 0 && sc->ext.cookieok)
7055 if (sc->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(sc))
7061 void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
7063 ctx->pha_enabled = val;
7066 void SSL_set_post_handshake_auth(SSL *ssl, int val)
7068 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
7073 sc->pha_enabled = val;
7076 int SSL_verify_client_post_handshake(SSL *ssl)
7078 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
7080 #ifndef OPENSSL_NO_QUIC
7082 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
7090 if (!SSL_CONNECTION_IS_TLS13(sc)) {
7091 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
7095 ERR_raise(ERR_LIB_SSL, SSL_R_NOT_SERVER);
7099 if (!SSL_is_init_finished(ssl)) {
7100 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
7104 switch (sc->post_handshake_auth) {
7106 ERR_raise(ERR_LIB_SSL, SSL_R_EXTENSION_NOT_RECEIVED);
7109 case SSL_PHA_EXT_SENT:
7110 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
7112 case SSL_PHA_EXT_RECEIVED:
7114 case SSL_PHA_REQUEST_PENDING:
7115 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_PENDING);
7117 case SSL_PHA_REQUESTED:
7118 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_SENT);
7122 sc->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
7124 /* checks verify_mode and algorithm_auth */
7125 if (!send_certificate_request(sc)) {
7126 sc->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
7127 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CONFIG);
7131 ossl_statem_set_in_init(sc, 1);
7135 int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
7136 SSL_CTX_generate_session_ticket_fn gen_cb,
7137 SSL_CTX_decrypt_session_ticket_fn dec_cb,
7140 ctx->generate_ticket_cb = gen_cb;
7141 ctx->decrypt_ticket_cb = dec_cb;
7142 ctx->ticket_cb_data = arg;
7146 void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
7147 SSL_allow_early_data_cb_fn cb,
7150 ctx->allow_early_data_cb = cb;
7151 ctx->allow_early_data_cb_data = arg;
7154 void SSL_set_allow_early_data_cb(SSL *s,
7155 SSL_allow_early_data_cb_fn cb,
7158 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7163 sc->allow_early_data_cb = cb;
7164 sc->allow_early_data_cb_data = arg;
7167 const EVP_CIPHER *ssl_evp_cipher_fetch(OSSL_LIB_CTX *libctx,
7169 const char *properties)
7171 const EVP_CIPHER *ciph;
7173 ciph = tls_get_cipher_from_engine(nid);
7178 * If there is no engine cipher then we do an explicit fetch. This may fail
7179 * and that could be ok
7182 ciph = EVP_CIPHER_fetch(libctx, OBJ_nid2sn(nid), properties);
7188 int ssl_evp_cipher_up_ref(const EVP_CIPHER *cipher)
7190 /* Don't up-ref an implicit EVP_CIPHER */
7191 if (EVP_CIPHER_get0_provider(cipher) == NULL)
7195 * The cipher was explicitly fetched and therefore it is safe to cast
7198 return EVP_CIPHER_up_ref((EVP_CIPHER *)cipher);
7201 void ssl_evp_cipher_free(const EVP_CIPHER *cipher)
7206 if (EVP_CIPHER_get0_provider(cipher) != NULL) {
7208 * The cipher was explicitly fetched and therefore it is safe to cast
7211 EVP_CIPHER_free((EVP_CIPHER *)cipher);
7215 const EVP_MD *ssl_evp_md_fetch(OSSL_LIB_CTX *libctx,
7217 const char *properties)
7221 md = tls_get_digest_from_engine(nid);
7225 /* Otherwise we do an explicit fetch */
7227 md = EVP_MD_fetch(libctx, OBJ_nid2sn(nid), properties);
7232 int ssl_evp_md_up_ref(const EVP_MD *md)
7234 /* Don't up-ref an implicit EVP_MD */
7235 if (EVP_MD_get0_provider(md) == NULL)
7239 * The digest was explicitly fetched and therefore it is safe to cast
7242 return EVP_MD_up_ref((EVP_MD *)md);
7245 void ssl_evp_md_free(const EVP_MD *md)
7250 if (EVP_MD_get0_provider(md) != NULL) {
7252 * The digest was explicitly fetched and therefore it is safe to cast
7255 EVP_MD_free((EVP_MD *)md);
7259 int SSL_set0_tmp_dh_pkey(SSL *s, EVP_PKEY *dhpkey)
7261 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7266 if (!ssl_security(sc, SSL_SECOP_TMP_DH,
7267 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
7268 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
7271 EVP_PKEY_free(sc->cert->dh_tmp);
7272 sc->cert->dh_tmp = dhpkey;
7276 int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX *ctx, EVP_PKEY *dhpkey)
7278 if (!ssl_ctx_security(ctx, SSL_SECOP_TMP_DH,
7279 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
7280 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
7283 EVP_PKEY_free(ctx->cert->dh_tmp);
7284 ctx->cert->dh_tmp = dhpkey;
7288 /* QUIC-specific methods which are supported on QUIC connections only. */
7289 int SSL_handle_events(SSL *s)
7293 #ifndef OPENSSL_NO_QUIC
7295 return ossl_quic_handle_events(s);
7298 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7299 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc))
7301 * DTLSv1_handle_timeout returns 0 if the timer wasn't expired yet,
7302 * which we consider a success case. Theoretically DTLSv1_handle_timeout
7303 * can also return 0 if s is NULL or not a DTLS object, but we've
7304 * already ruled out those possibilities above, so this is not possible
7305 * here. Thus the only failure cases are where DTLSv1_handle_timeout
7308 return DTLSv1_handle_timeout(s) >= 0;
7313 int SSL_get_event_timeout(SSL *s, struct timeval *tv, int *is_infinite)
7317 #ifndef OPENSSL_NO_QUIC
7319 return ossl_quic_get_event_timeout(s, tv, is_infinite);
7322 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7323 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc)
7324 && DTLSv1_get_timeout(s, tv)) {
7329 tv->tv_sec = 1000000;
7335 int SSL_get_rpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7337 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7339 #ifndef OPENSSL_NO_QUIC
7341 return ossl_quic_get_rpoll_descriptor(s, desc);
7344 if (sc == NULL || sc->rbio == NULL)
7347 return BIO_get_rpoll_descriptor(sc->rbio, desc);
7350 int SSL_get_wpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7352 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7354 #ifndef OPENSSL_NO_QUIC
7356 return ossl_quic_get_wpoll_descriptor(s, desc);
7359 if (sc == NULL || sc->wbio == NULL)
7362 return BIO_get_wpoll_descriptor(sc->wbio, desc);
7365 int SSL_net_read_desired(SSL *s)
7367 #ifndef OPENSSL_NO_QUIC
7369 return SSL_want_read(s);
7371 return ossl_quic_get_net_read_desired(s);
7373 return SSL_want_read(s);
7377 int SSL_net_write_desired(SSL *s)
7379 #ifndef OPENSSL_NO_QUIC
7381 return SSL_want_write(s);
7383 return ossl_quic_get_net_write_desired(s);
7385 return SSL_want_write(s);
7389 int SSL_set_blocking_mode(SSL *s, int blocking)
7391 #ifndef OPENSSL_NO_QUIC
7395 return ossl_quic_conn_set_blocking_mode(s, blocking);
7401 int SSL_get_blocking_mode(SSL *s)
7403 #ifndef OPENSSL_NO_QUIC
7407 return ossl_quic_conn_get_blocking_mode(s);
7413 int SSL_set1_initial_peer_addr(SSL *s, const BIO_ADDR *peer_addr)
7415 #ifndef OPENSSL_NO_QUIC
7419 return ossl_quic_conn_set_initial_peer_addr(s, peer_addr);
7425 int SSL_shutdown_ex(SSL *ssl, uint64_t flags,
7426 const SSL_SHUTDOWN_EX_ARGS *args,
7429 #ifndef OPENSSL_NO_QUIC
7431 return SSL_shutdown(ssl);
7433 return ossl_quic_conn_shutdown(ssl, flags, args, args_len);
7435 return SSL_shutdown(ssl);
7439 int SSL_stream_conclude(SSL *ssl, uint64_t flags)
7441 #ifndef OPENSSL_NO_QUIC
7445 return ossl_quic_conn_stream_conclude(ssl);
7451 SSL *SSL_new_stream(SSL *s, uint64_t flags)
7453 #ifndef OPENSSL_NO_QUIC
7457 return ossl_quic_conn_stream_new(s, flags);
7463 SSL *SSL_get0_connection(SSL *s)
7465 #ifndef OPENSSL_NO_QUIC
7469 return ossl_quic_get0_connection(s);
7475 int SSL_is_connection(SSL *s)
7477 return SSL_get0_connection(s) == s;
7480 int SSL_get_stream_type(SSL *s)
7482 #ifndef OPENSSL_NO_QUIC
7484 return SSL_STREAM_TYPE_BIDI;
7486 return ossl_quic_get_stream_type(s);
7488 return SSL_STREAM_TYPE_BIDI;
7492 uint64_t SSL_get_stream_id(SSL *s)
7494 #ifndef OPENSSL_NO_QUIC
7498 return ossl_quic_get_stream_id(s);
7504 int SSL_is_stream_local(SSL *s)
7506 #ifndef OPENSSL_NO_QUIC
7510 return ossl_quic_is_stream_local(s);
7516 int SSL_set_default_stream_mode(SSL *s, uint32_t mode)
7518 #ifndef OPENSSL_NO_QUIC
7522 return ossl_quic_set_default_stream_mode(s, mode);
7528 int SSL_set_incoming_stream_policy(SSL *s, int policy, uint64_t aec)
7530 #ifndef OPENSSL_NO_QUIC
7534 return ossl_quic_set_incoming_stream_policy(s, policy, aec);
7540 SSL *SSL_accept_stream(SSL *s, uint64_t flags)
7542 #ifndef OPENSSL_NO_QUIC
7546 return ossl_quic_accept_stream(s, flags);
7552 size_t SSL_get_accept_stream_queue_len(SSL *s)
7554 #ifndef OPENSSL_NO_QUIC
7558 return ossl_quic_get_accept_stream_queue_len(s);
7564 int SSL_stream_reset(SSL *s,
7565 const SSL_STREAM_RESET_ARGS *args,
7568 #ifndef OPENSSL_NO_QUIC
7572 return ossl_quic_stream_reset(s, args, args_len);
7578 int SSL_get_stream_read_state(SSL *s)
7580 #ifndef OPENSSL_NO_QUIC
7582 return SSL_STREAM_STATE_NONE;
7584 return ossl_quic_get_stream_read_state(s);
7586 return SSL_STREAM_STATE_NONE;
7590 int SSL_get_stream_write_state(SSL *s)
7592 #ifndef OPENSSL_NO_QUIC
7594 return SSL_STREAM_STATE_NONE;
7596 return ossl_quic_get_stream_write_state(s);
7598 return SSL_STREAM_STATE_NONE;
7602 int SSL_get_stream_read_error_code(SSL *s, uint64_t *app_error_code)
7604 #ifndef OPENSSL_NO_QUIC
7608 return ossl_quic_get_stream_read_error_code(s, app_error_code);
7614 int SSL_get_stream_write_error_code(SSL *s, uint64_t *app_error_code)
7616 #ifndef OPENSSL_NO_QUIC
7620 return ossl_quic_get_stream_write_error_code(s, app_error_code);
7626 int SSL_get_conn_close_info(SSL *s, SSL_CONN_CLOSE_INFO *info,
7629 #ifndef OPENSSL_NO_QUIC
7633 return ossl_quic_get_conn_close_info(s, info, info_len);
7639 int SSL_get_value_uint(SSL *s, uint32_t class_, uint32_t id,
7642 if (value == NULL) {
7643 ERR_raise(ERR_LIB_SSL, ERR_R_PASSED_INVALID_ARGUMENT);
7647 #ifndef OPENSSL_NO_QUIC
7649 return ossl_quic_get_value_uint(s, class_, id, value);
7652 ERR_raise(ERR_LIB_SSL, SSL_R_UNSUPPORTED_PROTOCOL);
7656 int SSL_set_value_uint(SSL *s, uint32_t class_, uint32_t id,
7659 #ifndef OPENSSL_NO_QUIC
7661 return ossl_quic_set_value_uint(s, class_, id, value);
7664 ERR_raise(ERR_LIB_SSL, SSL_R_UNSUPPORTED_PROTOCOL);
7668 int SSL_add_expected_rpk(SSL *s, EVP_PKEY *rpk)
7670 unsigned char *data = NULL;
7671 SSL_DANE *dane = SSL_get0_dane(s);
7674 if (dane == NULL || dane->dctx == NULL)
7676 if ((ret = i2d_PUBKEY(rpk, &data)) <= 0)
7679 ret = SSL_dane_tlsa_add(s, DANETLS_USAGE_DANE_EE,
7680 DANETLS_SELECTOR_SPKI,
7681 DANETLS_MATCHING_FULL,
7682 data, (size_t)ret) > 0;
7687 EVP_PKEY *SSL_get0_peer_rpk(const SSL *s)
7689 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7691 if (sc == NULL || sc->session == NULL)
7693 return sc->session->peer_rpk;
7696 int SSL_get_negotiated_client_cert_type(const SSL *s)
7698 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7703 return sc->ext.client_cert_type;
7706 int SSL_get_negotiated_server_cert_type(const SSL *s)
7708 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7713 return sc->ext.server_cert_type;
7716 static int validate_cert_type(const unsigned char *val, size_t len)
7722 if (val == NULL && len == 0)
7725 if (val == NULL || len == 0)
7728 for (i = 0; i < len; i++) {
7730 case TLSEXT_cert_type_rpk:
7735 case TLSEXT_cert_type_x509:
7740 case TLSEXT_cert_type_pgp:
7741 case TLSEXT_cert_type_1609dot2:
7749 static int set_cert_type(unsigned char **cert_type,
7750 size_t *cert_type_len,
7751 const unsigned char *val,
7754 unsigned char *tmp = NULL;
7756 if (!validate_cert_type(val, len))
7759 if (val != NULL && (tmp = OPENSSL_memdup(val, len)) == NULL)
7762 OPENSSL_free(*cert_type);
7764 *cert_type_len = len;
7768 int SSL_set1_client_cert_type(SSL *s, const unsigned char *val, size_t len)
7770 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7772 return set_cert_type(&sc->client_cert_type, &sc->client_cert_type_len,
7776 int SSL_set1_server_cert_type(SSL *s, const unsigned char *val, size_t len)
7778 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7780 return set_cert_type(&sc->server_cert_type, &sc->server_cert_type_len,
7784 int SSL_CTX_set1_client_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7786 return set_cert_type(&ctx->client_cert_type, &ctx->client_cert_type_len,
7790 int SSL_CTX_set1_server_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7792 return set_cert_type(&ctx->server_cert_type, &ctx->server_cert_type_len,
7796 int SSL_get0_client_cert_type(const SSL *s, unsigned char **t, size_t *len)
7798 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7800 if (t == NULL || len == NULL)
7803 *t = sc->client_cert_type;
7804 *len = sc->client_cert_type_len;
7808 int SSL_get0_server_cert_type(const SSL *s, unsigned char **t, size_t *len)
7810 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7812 if (t == NULL || len == NULL)
7815 *t = sc->server_cert_type;
7816 *len = sc->server_cert_type_len;
7820 int SSL_CTX_get0_client_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7822 if (t == NULL || len == NULL)
7825 *t = ctx->client_cert_type;
7826 *len = ctx->client_cert_type_len;
7830 int SSL_CTX_get0_server_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7832 if (t == NULL || len == NULL)
7835 *t = ctx->server_cert_type;
7836 *len = ctx->server_cert_type_len;