2 * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 * Copyright 2005 Nokia. All rights reserved.
6 * Licensed under the Apache License 2.0 (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
13 #include "ssl_local.h"
14 #include "internal/e_os.h"
15 #include <openssl/objects.h>
16 #include <openssl/x509v3.h>
17 #include <openssl/rand.h>
18 #include <openssl/ocsp.h>
19 #include <openssl/dh.h>
20 #include <openssl/engine.h>
21 #include <openssl/async.h>
22 #include <openssl/ct.h>
23 #include <openssl/trace.h>
24 #include <openssl/core_names.h>
25 #include "internal/cryptlib.h"
26 #include "internal/nelem.h"
27 #include "internal/refcount.h"
28 #include "internal/ktls.h"
29 #include "quic/quic_local.h"
31 static int ssl_undefined_function_3(SSL_CONNECTION *sc, unsigned char *r,
32 unsigned char *s, size_t t, size_t *u)
34 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
37 static int ssl_undefined_function_4(SSL_CONNECTION *sc, int r)
39 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
42 static size_t ssl_undefined_function_5(SSL_CONNECTION *sc, const char *r,
43 size_t s, unsigned char *t)
45 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
48 static int ssl_undefined_function_6(int r)
50 return ssl_undefined_function(NULL);
53 static int ssl_undefined_function_7(SSL_CONNECTION *sc, unsigned char *r,
54 size_t s, const char *t, size_t u,
55 const unsigned char *v, size_t w, int x)
57 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
60 static int ssl_undefined_function_8(SSL_CONNECTION *sc)
62 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
65 SSL3_ENC_METHOD ssl3_undef_enc_method = {
66 ssl_undefined_function_8,
67 ssl_undefined_function_3,
68 ssl_undefined_function_4,
69 ssl_undefined_function_5,
70 NULL, /* client_finished_label */
71 0, /* client_finished_label_len */
72 NULL, /* server_finished_label */
73 0, /* server_finished_label_len */
74 ssl_undefined_function_6,
75 ssl_undefined_function_7,
78 struct ssl_async_args {
82 enum { READFUNC, WRITEFUNC, OTHERFUNC } type;
84 int (*func_read) (SSL *, void *, size_t, size_t *);
85 int (*func_write) (SSL *, const void *, size_t, size_t *);
86 int (*func_other) (SSL *);
96 DANETLS_MATCHING_FULL, 0, NID_undef
99 DANETLS_MATCHING_2256, 1, NID_sha256
102 DANETLS_MATCHING_2512, 2, NID_sha512
106 static int dane_ctx_enable(struct dane_ctx_st *dctx)
108 const EVP_MD **mdevp;
110 uint8_t mdmax = DANETLS_MATCHING_LAST;
111 int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */
114 if (dctx->mdevp != NULL)
117 mdevp = OPENSSL_zalloc(n * sizeof(*mdevp));
118 mdord = OPENSSL_zalloc(n * sizeof(*mdord));
120 if (mdord == NULL || mdevp == NULL) {
126 /* Install default entries */
127 for (i = 0; i < OSSL_NELEM(dane_mds); ++i) {
130 if (dane_mds[i].nid == NID_undef ||
131 (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL)
133 mdevp[dane_mds[i].mtype] = md;
134 mdord[dane_mds[i].mtype] = dane_mds[i].ord;
144 static void dane_ctx_final(struct dane_ctx_st *dctx)
146 OPENSSL_free(dctx->mdevp);
149 OPENSSL_free(dctx->mdord);
154 static void tlsa_free(danetls_record *t)
158 OPENSSL_free(t->data);
159 EVP_PKEY_free(t->spki);
163 static void dane_final(SSL_DANE *dane)
165 sk_danetls_record_pop_free(dane->trecs, tlsa_free);
168 OSSL_STACK_OF_X509_free(dane->certs);
171 X509_free(dane->mcert);
179 * dane_copy - Copy dane configuration, sans verification state.
181 static int ssl_dane_dup(SSL_CONNECTION *to, SSL_CONNECTION *from)
186 if (!DANETLS_ENABLED(&from->dane))
189 num = sk_danetls_record_num(from->dane.trecs);
190 dane_final(&to->dane);
191 to->dane.flags = from->dane.flags;
192 to->dane.dctx = &SSL_CONNECTION_GET_CTX(to)->dane;
193 to->dane.trecs = sk_danetls_record_new_reserve(NULL, num);
195 if (to->dane.trecs == NULL) {
196 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
200 for (i = 0; i < num; ++i) {
201 danetls_record *t = sk_danetls_record_value(from->dane.trecs, i);
203 if (SSL_dane_tlsa_add(SSL_CONNECTION_GET_SSL(to), t->usage,
204 t->selector, t->mtype, t->data, t->dlen) <= 0)
210 static int dane_mtype_set(struct dane_ctx_st *dctx,
211 const EVP_MD *md, uint8_t mtype, uint8_t ord)
215 if (mtype == DANETLS_MATCHING_FULL && md != NULL) {
216 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL);
220 if (mtype > dctx->mdmax) {
221 const EVP_MD **mdevp;
223 int n = ((int)mtype) + 1;
225 mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp));
230 mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord));
235 /* Zero-fill any gaps */
236 for (i = dctx->mdmax + 1; i < mtype; ++i) {
244 dctx->mdevp[mtype] = md;
245 /* Coerce ordinal of disabled matching types to 0 */
246 dctx->mdord[mtype] = (md == NULL) ? 0 : ord;
251 static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype)
253 if (mtype > dane->dctx->mdmax)
255 return dane->dctx->mdevp[mtype];
258 static int dane_tlsa_add(SSL_DANE *dane,
261 uint8_t mtype, const unsigned char *data, size_t dlen)
264 const EVP_MD *md = NULL;
265 int ilen = (int)dlen;
269 if (dane->trecs == NULL) {
270 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_NOT_ENABLED);
274 if (ilen < 0 || dlen != (size_t)ilen) {
275 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DATA_LENGTH);
279 if (usage > DANETLS_USAGE_LAST) {
280 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE);
284 if (selector > DANETLS_SELECTOR_LAST) {
285 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_SELECTOR);
289 if (mtype != DANETLS_MATCHING_FULL) {
290 md = tlsa_md_get(dane, mtype);
292 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE);
297 if (md != NULL && dlen != (size_t)EVP_MD_get_size(md)) {
298 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH);
302 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_NULL_DATA);
306 if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL)
310 t->selector = selector;
312 t->data = OPENSSL_malloc(dlen);
313 if (t->data == NULL) {
317 memcpy(t->data, data, dlen);
320 /* Validate and cache full certificate or public key */
321 if (mtype == DANETLS_MATCHING_FULL) {
322 const unsigned char *p = data;
324 EVP_PKEY *pkey = NULL;
327 case DANETLS_SELECTOR_CERT:
328 if (!d2i_X509(&cert, &p, ilen) || p < data ||
329 dlen != (size_t)(p - data)) {
331 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
334 if (X509_get0_pubkey(cert) == NULL) {
336 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
340 if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
346 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
347 * records that contain full certificates of trust-anchors that are
348 * not present in the wire chain. For usage PKIX-TA(0), we augment
349 * the chain with untrusted Full(0) certificates from DNS, in case
350 * they are missing from the chain.
352 if ((dane->certs == NULL &&
353 (dane->certs = sk_X509_new_null()) == NULL) ||
354 !sk_X509_push(dane->certs, cert)) {
355 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
362 case DANETLS_SELECTOR_SPKI:
363 if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data ||
364 dlen != (size_t)(p - data)) {
366 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
371 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
372 * records that contain full bare keys of trust-anchors that are
373 * not present in the wire chain.
375 if (usage == DANETLS_USAGE_DANE_TA)
384 * Find the right insertion point for the new record.
386 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
387 * they can be processed first, as they require no chain building, and no
388 * expiration or hostname checks. Because DANE-EE(3) is numerically
389 * largest, this is accomplished via descending sort by "usage".
391 * We also sort in descending order by matching ordinal to simplify
392 * the implementation of digest agility in the verification code.
394 * The choice of order for the selector is not significant, so we
395 * use the same descending order for consistency.
397 num = sk_danetls_record_num(dane->trecs);
398 for (i = 0; i < num; ++i) {
399 danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
401 if (rec->usage > usage)
403 if (rec->usage < usage)
405 if (rec->selector > selector)
407 if (rec->selector < selector)
409 if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
414 if (!sk_danetls_record_insert(dane->trecs, t, i)) {
416 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
419 dane->umask |= DANETLS_USAGE_BIT(usage);
425 * Return 0 if there is only one version configured and it was disabled
426 * at configure time. Return 1 otherwise.
428 static int ssl_check_allowed_versions(int min_version, int max_version)
430 int minisdtls = 0, maxisdtls = 0;
432 /* Figure out if we're doing DTLS versions or TLS versions */
433 if (min_version == DTLS1_BAD_VER
434 || min_version >> 8 == DTLS1_VERSION_MAJOR)
436 if (max_version == DTLS1_BAD_VER
437 || max_version >> 8 == DTLS1_VERSION_MAJOR)
439 /* A wildcard version of 0 could be DTLS or TLS. */
440 if ((minisdtls && !maxisdtls && max_version != 0)
441 || (maxisdtls && !minisdtls && min_version != 0)) {
442 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
446 if (minisdtls || maxisdtls) {
447 /* Do DTLS version checks. */
448 if (min_version == 0)
449 /* Ignore DTLS1_BAD_VER */
450 min_version = DTLS1_VERSION;
451 if (max_version == 0)
452 max_version = DTLS1_2_VERSION;
453 #ifdef OPENSSL_NO_DTLS1_2
454 if (max_version == DTLS1_2_VERSION)
455 max_version = DTLS1_VERSION;
457 #ifdef OPENSSL_NO_DTLS1
458 if (min_version == DTLS1_VERSION)
459 min_version = DTLS1_2_VERSION;
461 /* Done massaging versions; do the check. */
463 #ifdef OPENSSL_NO_DTLS1
464 || (DTLS_VERSION_GE(min_version, DTLS1_VERSION)
465 && DTLS_VERSION_GE(DTLS1_VERSION, max_version))
467 #ifdef OPENSSL_NO_DTLS1_2
468 || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION)
469 && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version))
474 /* Regular TLS version checks. */
475 if (min_version == 0)
476 min_version = SSL3_VERSION;
477 if (max_version == 0)
478 max_version = TLS1_3_VERSION;
479 #ifdef OPENSSL_NO_TLS1_3
480 if (max_version == TLS1_3_VERSION)
481 max_version = TLS1_2_VERSION;
483 #ifdef OPENSSL_NO_TLS1_2
484 if (max_version == TLS1_2_VERSION)
485 max_version = TLS1_1_VERSION;
487 #ifdef OPENSSL_NO_TLS1_1
488 if (max_version == TLS1_1_VERSION)
489 max_version = TLS1_VERSION;
491 #ifdef OPENSSL_NO_TLS1
492 if (max_version == TLS1_VERSION)
493 max_version = SSL3_VERSION;
495 #ifdef OPENSSL_NO_SSL3
496 if (min_version == SSL3_VERSION)
497 min_version = TLS1_VERSION;
499 #ifdef OPENSSL_NO_TLS1
500 if (min_version == TLS1_VERSION)
501 min_version = TLS1_1_VERSION;
503 #ifdef OPENSSL_NO_TLS1_1
504 if (min_version == TLS1_1_VERSION)
505 min_version = TLS1_2_VERSION;
507 #ifdef OPENSSL_NO_TLS1_2
508 if (min_version == TLS1_2_VERSION)
509 min_version = TLS1_3_VERSION;
511 /* Done massaging versions; do the check. */
513 #ifdef OPENSSL_NO_SSL3
514 || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version)
516 #ifdef OPENSSL_NO_TLS1
517 || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version)
519 #ifdef OPENSSL_NO_TLS1_1
520 || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version)
522 #ifdef OPENSSL_NO_TLS1_2
523 || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version)
525 #ifdef OPENSSL_NO_TLS1_3
526 || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version)
534 #if defined(__TANDEM) && defined(OPENSSL_VPROC)
536 * Define a VPROC function for HP NonStop build ssl library.
537 * This is used by platform version identification tools.
538 * Do not inline this procedure or make it static.
540 # define OPENSSL_VPROC_STRING_(x) x##_SSL
541 # define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
542 # define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
543 void OPENSSL_VPROC_FUNC(void) {}
546 static int clear_record_layer(SSL_CONNECTION *s)
550 /* We try and reset both record layers even if one fails */
552 ret = ssl_set_new_record_layer(s,
553 SSL_CONNECTION_IS_DTLS(s) ? DTLS_ANY_VERSION
555 OSSL_RECORD_DIRECTION_READ,
556 OSSL_RECORD_PROTECTION_LEVEL_NONE, NULL, 0,
557 NULL, 0, NULL, 0, NULL, 0, NULL, 0,
558 NID_undef, NULL, NULL, NULL);
560 ret &= ssl_set_new_record_layer(s,
561 SSL_CONNECTION_IS_DTLS(s) ? DTLS_ANY_VERSION
563 OSSL_RECORD_DIRECTION_WRITE,
564 OSSL_RECORD_PROTECTION_LEVEL_NONE, NULL, 0,
565 NULL, 0, NULL, 0, NULL, 0, NULL, 0,
566 NID_undef, NULL, NULL, NULL);
568 /* SSLfatal already called in the event of failure */
572 int SSL_clear(SSL *s)
574 if (s->method == NULL) {
575 ERR_raise(ERR_LIB_SSL, SSL_R_NO_METHOD_SPECIFIED);
579 return s->method->ssl_reset(s);
582 int ossl_ssl_connection_reset(SSL *s)
584 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
589 if (ssl_clear_bad_session(sc)) {
590 SSL_SESSION_free(sc->session);
593 SSL_SESSION_free(sc->psksession);
594 sc->psksession = NULL;
595 OPENSSL_free(sc->psksession_id);
596 sc->psksession_id = NULL;
597 sc->psksession_id_len = 0;
598 sc->hello_retry_request = SSL_HRR_NONE;
599 sc->sent_tickets = 0;
605 if (sc->renegotiate) {
606 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
610 ossl_statem_clear(sc);
612 /* TODO(QUIC): Version handling not yet clear */
613 sc->version = s->method->version;
614 sc->client_version = sc->version;
615 sc->rwstate = SSL_NOTHING;
617 BUF_MEM_free(sc->init_buf);
619 sc->first_packet = 0;
621 sc->key_update = SSL_KEY_UPDATE_NONE;
622 memset(sc->ext.compress_certificate_from_peer, 0,
623 sizeof(sc->ext.compress_certificate_from_peer));
624 sc->ext.compress_certificate_sent = 0;
626 EVP_MD_CTX_free(sc->pha_dgst);
629 /* Reset DANE verification result state */
632 X509_free(sc->dane.mcert);
633 sc->dane.mcert = NULL;
634 sc->dane.mtlsa = NULL;
636 /* Clear the verification result peername */
637 X509_VERIFY_PARAM_move_peername(sc->param, NULL);
639 /* Clear any shared connection state */
640 OPENSSL_free(sc->shared_sigalgs);
641 sc->shared_sigalgs = NULL;
642 sc->shared_sigalgslen = 0;
645 * Check to see if we were changed into a different method, if so, revert
648 if (s->method != s->defltmeth) {
649 s->method->ssl_deinit(s);
650 s->method = s->defltmeth;
651 if (!s->method->ssl_init(s))
654 if (!s->method->ssl_clear(s))
658 RECORD_LAYER_clear(&sc->rlayer);
659 BIO_free(sc->rlayer.rrlnext);
660 sc->rlayer.rrlnext = NULL;
662 if (!clear_record_layer(sc))
668 #ifndef OPENSSL_NO_DEPRECATED_3_0
669 /** Used to change an SSL_CTXs default SSL method type */
670 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
672 STACK_OF(SSL_CIPHER) *sk;
674 if (IS_QUIC_CTX(ctx)) {
675 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
681 if (!SSL_CTX_set_ciphersuites(ctx, OSSL_default_ciphersuites())) {
682 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
685 sk = ssl_create_cipher_list(ctx,
686 ctx->tls13_ciphersuites,
688 &(ctx->cipher_list_by_id),
689 OSSL_default_cipher_list(), ctx->cert);
690 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
691 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
698 SSL *SSL_new(SSL_CTX *ctx)
701 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_CTX);
704 if (ctx->method == NULL) {
705 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
708 return ctx->method->ssl_new(ctx);
711 int ossl_ssl_init(SSL *ssl, SSL_CTX *ctx, const SSL_METHOD *method, int type)
715 ssl->lock = CRYPTO_THREAD_lock_new();
716 if (ssl->lock == NULL)
719 if (!CRYPTO_NEW_REF(&ssl->references, 1)) {
720 CRYPTO_THREAD_lock_free(ssl->lock);
724 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, ssl, &ssl->ex_data)) {
725 CRYPTO_THREAD_lock_free(ssl->lock);
726 CRYPTO_FREE_REF(&ssl->references);
734 ssl->defltmeth = ssl->method = method;
739 SSL *ossl_ssl_connection_new_int(SSL_CTX *ctx, const SSL_METHOD *method)
744 s = OPENSSL_zalloc(sizeof(*s));
749 if (!ossl_ssl_init(ssl, ctx, method, SSL_TYPE_SSL_CONNECTION)) {
756 RECORD_LAYER_init(&s->rlayer, s);
758 s->options = ctx->options;
760 s->dane.flags = ctx->dane.flags;
761 if (method->version == ctx->method->version) {
762 s->min_proto_version = ctx->min_proto_version;
763 s->max_proto_version = ctx->max_proto_version;
767 s->max_cert_list = ctx->max_cert_list;
768 s->max_early_data = ctx->max_early_data;
769 s->recv_max_early_data = ctx->recv_max_early_data;
771 s->num_tickets = ctx->num_tickets;
772 s->pha_enabled = ctx->pha_enabled;
774 /* Shallow copy of the ciphersuites stack */
775 s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
776 if (s->tls13_ciphersuites == NULL)
780 * Earlier library versions used to copy the pointer to the CERT, not
781 * its contents; only when setting new parameters for the per-SSL
782 * copy, ssl_cert_new would be called (and the direct reference to
783 * the per-SSL_CTX settings would be lost, but those still were
784 * indirectly accessed for various purposes, and for that reason they
785 * used to be known as s->ctx->default_cert). Now we don't look at the
786 * SSL_CTX's CERT after having duplicated it once.
788 s->cert = ssl_cert_dup(ctx->cert);
792 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
793 s->msg_callback = ctx->msg_callback;
794 s->msg_callback_arg = ctx->msg_callback_arg;
795 s->verify_mode = ctx->verify_mode;
796 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
797 s->rlayer.record_padding_cb = ctx->record_padding_cb;
798 s->rlayer.record_padding_arg = ctx->record_padding_arg;
799 s->rlayer.block_padding = ctx->block_padding;
800 s->sid_ctx_length = ctx->sid_ctx_length;
801 if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
803 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
804 s->verify_callback = ctx->default_verify_callback;
805 s->generate_session_id = ctx->generate_session_id;
807 s->param = X509_VERIFY_PARAM_new();
808 if (s->param == NULL)
810 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
811 s->quiet_shutdown = IS_QUIC_CTX(ctx) ? 0 : ctx->quiet_shutdown;
813 if (!IS_QUIC_CTX(ctx))
814 s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
816 s->max_send_fragment = ctx->max_send_fragment;
817 s->split_send_fragment = ctx->split_send_fragment;
818 s->max_pipelines = ctx->max_pipelines;
819 s->rlayer.default_read_buf_len = ctx->default_read_buf_len;
822 s->ext.debug_arg = NULL;
823 s->ext.ticket_expected = 0;
824 s->ext.status_type = ctx->ext.status_type;
825 s->ext.status_expected = 0;
826 s->ext.ocsp.ids = NULL;
827 s->ext.ocsp.exts = NULL;
828 s->ext.ocsp.resp = NULL;
829 s->ext.ocsp.resp_len = 0;
831 s->session_ctx = ctx;
832 if (ctx->ext.ecpointformats) {
833 s->ext.ecpointformats =
834 OPENSSL_memdup(ctx->ext.ecpointformats,
835 ctx->ext.ecpointformats_len);
836 if (!s->ext.ecpointformats) {
837 s->ext.ecpointformats_len = 0;
840 s->ext.ecpointformats_len =
841 ctx->ext.ecpointformats_len;
843 if (ctx->ext.supportedgroups) {
844 s->ext.supportedgroups =
845 OPENSSL_memdup(ctx->ext.supportedgroups,
846 ctx->ext.supportedgroups_len
847 * sizeof(*ctx->ext.supportedgroups));
848 if (!s->ext.supportedgroups) {
849 s->ext.supportedgroups_len = 0;
852 s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
855 #ifndef OPENSSL_NO_NEXTPROTONEG
859 if (ctx->ext.alpn != NULL) {
860 s->ext.alpn = OPENSSL_malloc(ctx->ext.alpn_len);
861 if (s->ext.alpn == NULL) {
865 memcpy(s->ext.alpn, ctx->ext.alpn, ctx->ext.alpn_len);
866 s->ext.alpn_len = ctx->ext.alpn_len;
869 s->verified_chain = NULL;
870 s->verify_result = X509_V_OK;
872 s->default_passwd_callback = ctx->default_passwd_callback;
873 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
875 s->key_update = SSL_KEY_UPDATE_NONE;
877 if (!IS_QUIC_CTX(ctx)) {
878 s->allow_early_data_cb = ctx->allow_early_data_cb;
879 s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
882 if (!method->ssl_init(ssl))
885 s->server = (method->ssl_accept == ssl_undefined_function) ? 0 : 1;
887 if (!method->ssl_reset(ssl))
890 #ifndef OPENSSL_NO_PSK
891 s->psk_client_callback = ctx->psk_client_callback;
892 s->psk_server_callback = ctx->psk_server_callback;
894 s->psk_find_session_cb = ctx->psk_find_session_cb;
895 s->psk_use_session_cb = ctx->psk_use_session_cb;
897 s->async_cb = ctx->async_cb;
898 s->async_cb_arg = ctx->async_cb_arg;
902 #ifndef OPENSSL_NO_COMP_ALG
903 memcpy(s->cert_comp_prefs, ctx->cert_comp_prefs, sizeof(s->cert_comp_prefs));
905 if (ctx->client_cert_type != NULL) {
906 s->client_cert_type = OPENSSL_memdup(ctx->client_cert_type,
907 ctx->client_cert_type_len);
908 if (s->client_cert_type == NULL)
910 s->client_cert_type_len = ctx->client_cert_type_len;
912 if (ctx->server_cert_type != NULL) {
913 s->server_cert_type = OPENSSL_memdup(ctx->server_cert_type,
914 ctx->server_cert_type_len);
915 if (s->server_cert_type == NULL)
917 s->server_cert_type_len = ctx->server_cert_type_len;
920 #ifndef OPENSSL_NO_CT
921 if (!SSL_set_ct_validation_callback(ssl, ctx->ct_validation_callback,
922 ctx->ct_validation_callback_arg))
926 s->ssl_pkey_num = SSL_PKEY_NUM + ctx->sigalg_list_len;
929 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
932 ERR_raise(ERR_LIB_SSL, ERR_R_ASN1_LIB);
935 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
941 SSL *ossl_ssl_connection_new(SSL_CTX *ctx)
943 return ossl_ssl_connection_new_int(ctx, ctx->method);
946 int SSL_is_dtls(const SSL *s)
948 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
950 #ifndef OPENSSL_NO_QUIC
951 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
958 return SSL_CONNECTION_IS_DTLS(sc) ? 1 : 0;
961 int SSL_is_tls(const SSL *s)
963 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
965 #ifndef OPENSSL_NO_QUIC
966 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
973 return SSL_CONNECTION_IS_DTLS(sc) ? 0 : 1;
976 int SSL_is_quic(const SSL *s)
978 #ifndef OPENSSL_NO_QUIC
979 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
985 int SSL_up_ref(SSL *s)
989 if (CRYPTO_UP_REF(&s->references, &i) <= 0)
992 REF_PRINT_COUNT("SSL", s);
993 REF_ASSERT_ISNT(i < 2);
994 return ((i > 1) ? 1 : 0);
997 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
998 unsigned int sid_ctx_len)
1000 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
1001 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
1004 ctx->sid_ctx_length = sid_ctx_len;
1005 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
1010 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
1011 unsigned int sid_ctx_len)
1013 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1018 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
1019 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
1022 sc->sid_ctx_length = sid_ctx_len;
1023 memcpy(sc->sid_ctx, sid_ctx, sid_ctx_len);
1028 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
1030 if (!CRYPTO_THREAD_write_lock(ctx->lock))
1032 ctx->generate_session_id = cb;
1033 CRYPTO_THREAD_unlock(ctx->lock);
1037 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
1039 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1041 if (sc == NULL || !CRYPTO_THREAD_write_lock(ssl->lock))
1043 sc->generate_session_id = cb;
1044 CRYPTO_THREAD_unlock(ssl->lock);
1048 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
1049 unsigned int id_len)
1052 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
1053 * we can "construct" a session to give us the desired check - i.e. to
1054 * find if there's a session in the hash table that would conflict with
1055 * any new session built out of this id/id_len and the ssl_version in use
1059 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
1061 if (sc == NULL || id_len > sizeof(r.session_id))
1064 r.ssl_version = sc->version;
1065 r.session_id_length = id_len;
1066 memcpy(r.session_id, id, id_len);
1068 if (!CRYPTO_THREAD_read_lock(sc->session_ctx->lock))
1070 p = lh_SSL_SESSION_retrieve(sc->session_ctx->sessions, &r);
1071 CRYPTO_THREAD_unlock(sc->session_ctx->lock);
1075 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
1077 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
1080 int SSL_set_purpose(SSL *s, int purpose)
1082 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1087 return X509_VERIFY_PARAM_set_purpose(sc->param, purpose);
1090 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
1092 return X509_VERIFY_PARAM_set_trust(s->param, trust);
1095 int SSL_set_trust(SSL *s, int trust)
1097 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1102 return X509_VERIFY_PARAM_set_trust(sc->param, trust);
1105 int SSL_set1_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. */
1114 if (hostname != NULL
1115 && X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname) == 1)
1118 return X509_VERIFY_PARAM_set1_host(sc->param, hostname, 0);
1121 int SSL_add1_host(SSL *s, const char *hostname)
1123 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1128 /* If a hostname is provided and parses as an IP address,
1129 * treat it as such. */
1132 ASN1_OCTET_STRING *ip;
1135 ip = a2i_IPADDRESS(hostname);
1137 /* We didn't want it; only to check if it *is* an IP address */
1138 ASN1_OCTET_STRING_free(ip);
1140 old_ip = X509_VERIFY_PARAM_get1_ip_asc(sc->param);
1143 OPENSSL_free(old_ip);
1144 /* There can be only one IP address */
1148 return X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname);
1152 return X509_VERIFY_PARAM_add1_host(sc->param, hostname, 0);
1155 void SSL_set_hostflags(SSL *s, unsigned int flags)
1157 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1162 X509_VERIFY_PARAM_set_hostflags(sc->param, flags);
1165 const char *SSL_get0_peername(SSL *s)
1167 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1172 return X509_VERIFY_PARAM_get0_peername(sc->param);
1175 int SSL_CTX_dane_enable(SSL_CTX *ctx)
1177 return dane_ctx_enable(&ctx->dane);
1180 unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
1182 unsigned long orig = ctx->dane.flags;
1184 ctx->dane.flags |= flags;
1188 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
1190 unsigned long orig = ctx->dane.flags;
1192 ctx->dane.flags &= ~flags;
1196 int SSL_dane_enable(SSL *s, const char *basedomain)
1199 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1205 if (s->ctx->dane.mdmax == 0) {
1206 ERR_raise(ERR_LIB_SSL, SSL_R_CONTEXT_NOT_DANE_ENABLED);
1209 if (dane->trecs != NULL) {
1210 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_ALREADY_ENABLED);
1215 * Default SNI name. This rejects empty names, while set1_host below
1216 * accepts them and disables hostname checks. To avoid side-effects with
1217 * invalid input, set the SNI name first.
1219 if (sc->ext.hostname == NULL) {
1220 if (!SSL_set_tlsext_host_name(s, basedomain)) {
1221 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1226 /* Primary RFC6125 reference identifier */
1227 if (!X509_VERIFY_PARAM_set1_host(sc->param, basedomain, 0)) {
1228 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1234 dane->dctx = &s->ctx->dane;
1235 dane->trecs = sk_danetls_record_new_null();
1237 if (dane->trecs == NULL) {
1238 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
1244 unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
1247 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1252 orig = sc->dane.flags;
1254 sc->dane.flags |= flags;
1258 unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
1261 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1266 orig = sc->dane.flags;
1268 sc->dane.flags &= ~flags;
1272 int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
1275 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1282 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1286 *mcert = dane->mcert;
1288 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
1293 int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
1294 uint8_t *mtype, const unsigned char **data, size_t *dlen)
1297 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1304 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1308 *usage = dane->mtlsa->usage;
1310 *selector = dane->mtlsa->selector;
1312 *mtype = dane->mtlsa->mtype;
1314 *data = dane->mtlsa->data;
1316 *dlen = dane->mtlsa->dlen;
1321 SSL_DANE *SSL_get0_dane(SSL *s)
1323 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1331 int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
1332 uint8_t mtype, const unsigned char *data, size_t dlen)
1334 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1339 return dane_tlsa_add(&sc->dane, usage, selector, mtype, data, dlen);
1342 int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
1345 return dane_mtype_set(&ctx->dane, md, mtype, ord);
1348 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
1350 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
1353 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
1355 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1360 return X509_VERIFY_PARAM_set1(sc->param, vpm);
1363 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
1368 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
1370 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1378 void SSL_certs_clear(SSL *s)
1380 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1385 ssl_cert_clear_certs(sc->cert);
1388 void SSL_free(SSL *s)
1394 CRYPTO_DOWN_REF(&s->references, &i);
1395 REF_PRINT_COUNT("SSL", s);
1398 REF_ASSERT_ISNT(i < 0);
1400 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1402 if (s->method != NULL)
1403 s->method->ssl_free(s);
1405 SSL_CTX_free(s->ctx);
1406 CRYPTO_THREAD_lock_free(s->lock);
1407 CRYPTO_FREE_REF(&s->references);
1412 void ossl_ssl_connection_free(SSL *ssl)
1416 s = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
1420 X509_VERIFY_PARAM_free(s->param);
1421 dane_final(&s->dane);
1423 /* Ignore return value */
1424 ssl_free_wbio_buffer(s);
1426 RECORD_LAYER_clear(&s->rlayer);
1428 BUF_MEM_free(s->init_buf);
1430 /* add extra stuff */
1431 sk_SSL_CIPHER_free(s->cipher_list);
1432 sk_SSL_CIPHER_free(s->cipher_list_by_id);
1433 sk_SSL_CIPHER_free(s->tls13_ciphersuites);
1434 sk_SSL_CIPHER_free(s->peer_ciphers);
1436 /* Make the next call work :-) */
1437 if (s->session != NULL) {
1438 ssl_clear_bad_session(s);
1439 SSL_SESSION_free(s->session);
1441 SSL_SESSION_free(s->psksession);
1442 OPENSSL_free(s->psksession_id);
1444 ssl_cert_free(s->cert);
1445 OPENSSL_free(s->shared_sigalgs);
1446 /* Free up if allocated */
1448 OPENSSL_free(s->ext.hostname);
1449 SSL_CTX_free(s->session_ctx);
1450 OPENSSL_free(s->ext.ecpointformats);
1451 OPENSSL_free(s->ext.peer_ecpointformats);
1452 OPENSSL_free(s->ext.supportedgroups);
1453 OPENSSL_free(s->ext.peer_supportedgroups);
1454 sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
1455 #ifndef OPENSSL_NO_OCSP
1456 sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
1458 #ifndef OPENSSL_NO_CT
1459 SCT_LIST_free(s->scts);
1460 OPENSSL_free(s->ext.scts);
1462 OPENSSL_free(s->ext.ocsp.resp);
1463 OPENSSL_free(s->ext.alpn);
1464 OPENSSL_free(s->ext.tls13_cookie);
1465 if (s->clienthello != NULL)
1466 OPENSSL_free(s->clienthello->pre_proc_exts);
1467 OPENSSL_free(s->clienthello);
1468 OPENSSL_free(s->pha_context);
1469 EVP_MD_CTX_free(s->pha_dgst);
1471 sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
1472 sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
1474 OPENSSL_free(s->client_cert_type);
1475 OPENSSL_free(s->server_cert_type);
1477 OSSL_STACK_OF_X509_free(s->verified_chain);
1479 if (ssl->method != NULL)
1480 ssl->method->ssl_deinit(ssl);
1482 ASYNC_WAIT_CTX_free(s->waitctx);
1484 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1485 OPENSSL_free(s->ext.npn);
1488 #ifndef OPENSSL_NO_SRTP
1489 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
1493 * We do this late. We want to ensure that any other references we held to
1494 * these BIOs are freed first *before* we call BIO_free_all(), because
1495 * BIO_free_all() will only free each BIO in the chain if the number of
1496 * references to the first BIO have dropped to 0
1498 BIO_free_all(s->wbio);
1500 BIO_free_all(s->rbio);
1502 OPENSSL_free(s->s3.tmp.valid_flags);
1505 void SSL_set0_rbio(SSL *s, BIO *rbio)
1507 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1509 #ifndef OPENSSL_NO_QUIC
1511 ossl_quic_conn_set0_net_rbio(s, rbio);
1519 BIO_free_all(sc->rbio);
1521 sc->rlayer.rrlmethod->set1_bio(sc->rlayer.rrl, sc->rbio);
1524 void SSL_set0_wbio(SSL *s, BIO *wbio)
1526 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1528 #ifndef OPENSSL_NO_QUIC
1530 ossl_quic_conn_set0_net_wbio(s, wbio);
1539 * If the output buffering BIO is still in place, remove it
1541 if (sc->bbio != NULL)
1542 sc->wbio = BIO_pop(sc->wbio);
1544 BIO_free_all(sc->wbio);
1547 /* Re-attach |bbio| to the new |wbio|. */
1548 if (sc->bbio != NULL)
1549 sc->wbio = BIO_push(sc->bbio, sc->wbio);
1551 sc->rlayer.wrlmethod->set1_bio(sc->rlayer.wrl, sc->wbio);
1554 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1557 * For historical reasons, this function has many different cases in
1558 * ownership handling.
1561 /* If nothing has changed, do nothing */
1562 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1566 * If the two arguments are equal then one fewer reference is granted by the
1567 * caller than we want to take
1569 if (rbio != NULL && rbio == wbio)
1573 * If only the wbio is changed only adopt one reference.
1575 if (rbio == SSL_get_rbio(s)) {
1576 SSL_set0_wbio(s, wbio);
1580 * There is an asymmetry here for historical reasons. If only the rbio is
1581 * changed AND the rbio and wbio were originally different, then we only
1582 * adopt one reference.
1584 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1585 SSL_set0_rbio(s, rbio);
1589 /* Otherwise, adopt both references. */
1590 SSL_set0_rbio(s, rbio);
1591 SSL_set0_wbio(s, wbio);
1594 BIO *SSL_get_rbio(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_rbio(s);
1609 BIO *SSL_get_wbio(const SSL *s)
1611 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1613 #ifndef OPENSSL_NO_QUIC
1615 return ossl_quic_conn_get_net_wbio(s);
1621 if (sc->bbio != NULL) {
1623 * If |bbio| is active, the true caller-configured BIO is its
1626 return BIO_next(sc->bbio);
1631 int SSL_get_fd(const SSL *s)
1633 return SSL_get_rfd(s);
1636 int SSL_get_rfd(const SSL *s)
1641 b = SSL_get_rbio(s);
1642 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1644 BIO_get_fd(r, &ret);
1648 int SSL_get_wfd(const SSL *s)
1653 b = SSL_get_wbio(s);
1654 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1656 BIO_get_fd(r, &ret);
1660 #ifndef OPENSSL_NO_SOCK
1661 static const BIO_METHOD *fd_method(SSL *s)
1663 #ifndef OPENSSL_NO_DGRAM
1665 return BIO_s_datagram();
1668 return BIO_s_socket();
1671 int SSL_set_fd(SSL *s, int fd)
1676 if (s->type == SSL_TYPE_QUIC_XSO) {
1677 ERR_raise(ERR_LIB_SSL, SSL_R_CONN_USE_ONLY);
1681 bio = BIO_new(fd_method(s));
1684 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1687 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1688 SSL_set_bio(s, bio, bio);
1689 #ifndef OPENSSL_NO_KTLS
1691 * The new socket is created successfully regardless of ktls_enable.
1692 * ktls_enable doesn't change any functionality of the socket, except
1693 * changing the setsockopt to enable the processing of ktls_start.
1694 * Thus, it is not a problem to call it for non-TLS sockets.
1697 #endif /* OPENSSL_NO_KTLS */
1703 int SSL_set_wfd(SSL *s, int fd)
1705 BIO *rbio = SSL_get_rbio(s);
1706 int desired_type = IS_QUIC(s) ? BIO_TYPE_DGRAM : BIO_TYPE_SOCKET;
1708 if (s->type == SSL_TYPE_QUIC_XSO) {
1709 ERR_raise(ERR_LIB_SSL, SSL_R_CONN_USE_ONLY);
1713 if (rbio == NULL || BIO_method_type(rbio) != desired_type
1714 || (int)BIO_get_fd(rbio, NULL) != fd) {
1715 BIO *bio = BIO_new(fd_method(s));
1718 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1721 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1722 SSL_set0_wbio(s, bio);
1723 #ifndef OPENSSL_NO_KTLS
1725 * The new socket is created successfully regardless of ktls_enable.
1726 * ktls_enable doesn't change any functionality of the socket, except
1727 * changing the setsockopt to enable the processing of ktls_start.
1728 * Thus, it is not a problem to call it for non-TLS sockets.
1731 #endif /* OPENSSL_NO_KTLS */
1734 SSL_set0_wbio(s, rbio);
1739 int SSL_set_rfd(SSL *s, int fd)
1741 BIO *wbio = SSL_get_wbio(s);
1742 int desired_type = IS_QUIC(s) ? BIO_TYPE_DGRAM : BIO_TYPE_SOCKET;
1744 if (s->type == SSL_TYPE_QUIC_XSO) {
1745 ERR_raise(ERR_LIB_SSL, SSL_R_CONN_USE_ONLY);
1749 if (wbio == NULL || BIO_method_type(wbio) != desired_type
1750 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
1751 BIO *bio = BIO_new(fd_method(s));
1754 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1757 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1758 SSL_set0_rbio(s, bio);
1761 SSL_set0_rbio(s, wbio);
1768 /* return length of latest Finished message we sent, copy to 'buf' */
1769 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
1772 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1777 ret = sc->s3.tmp.finish_md_len;
1780 memcpy(buf, sc->s3.tmp.finish_md, count);
1784 /* return length of latest Finished message we expected, copy to 'buf' */
1785 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
1788 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1793 ret = sc->s3.tmp.peer_finish_md_len;
1796 memcpy(buf, sc->s3.tmp.peer_finish_md, count);
1800 int SSL_get_verify_mode(const SSL *s)
1802 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1807 return sc->verify_mode;
1810 int SSL_get_verify_depth(const SSL *s)
1812 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1817 return X509_VERIFY_PARAM_get_depth(sc->param);
1820 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
1821 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1826 return sc->verify_callback;
1829 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
1831 return ctx->verify_mode;
1834 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
1836 return X509_VERIFY_PARAM_get_depth(ctx->param);
1839 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
1840 return ctx->default_verify_callback;
1843 void SSL_set_verify(SSL *s, int mode,
1844 int (*callback) (int ok, X509_STORE_CTX *ctx))
1846 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1851 sc->verify_mode = mode;
1852 if (callback != NULL)
1853 sc->verify_callback = callback;
1856 void SSL_set_verify_depth(SSL *s, int depth)
1858 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1863 X509_VERIFY_PARAM_set_depth(sc->param, depth);
1866 void SSL_set_read_ahead(SSL *s, int yes)
1868 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
1869 OSSL_PARAM options[2], *opts = options;
1874 RECORD_LAYER_set_read_ahead(&sc->rlayer, yes);
1876 *opts++ = OSSL_PARAM_construct_int(OSSL_LIBSSL_RECORD_LAYER_PARAM_READ_AHEAD,
1877 &sc->rlayer.read_ahead);
1878 *opts = OSSL_PARAM_construct_end();
1880 /* Ignore return value */
1881 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
1884 int SSL_get_read_ahead(const SSL *s)
1886 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
1891 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
1894 int SSL_pending(const SSL *s)
1896 size_t pending = s->method->ssl_pending(s);
1899 * SSL_pending cannot work properly if read-ahead is enabled
1900 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1901 * impossible to fix since SSL_pending cannot report errors that may be
1902 * observed while scanning the new data. (Note that SSL_pending() is
1903 * often used as a boolean value, so we'd better not return -1.)
1905 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1906 * we just return INT_MAX.
1908 return pending < INT_MAX ? (int)pending : INT_MAX;
1911 int SSL_has_pending(const SSL *s)
1914 * Similar to SSL_pending() but returns a 1 to indicate that we have
1915 * processed or unprocessed data available or 0 otherwise (as opposed to the
1916 * number of bytes available). Unlike SSL_pending() this will take into
1917 * account read_ahead data. A 1 return simply indicates that we have data.
1918 * That data may not result in any application data, or we may fail to parse
1919 * the records for some reason.
1921 const SSL_CONNECTION *sc;
1923 #ifndef OPENSSL_NO_QUIC
1925 return ossl_quic_has_pending(s);
1928 sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1930 /* Check buffered app data if any first */
1931 if (SSL_CONNECTION_IS_DTLS(sc)) {
1935 iter = pqueue_iterator(sc->rlayer.d->buffered_app_data.q);
1936 while ((item = pqueue_next(&iter)) != NULL) {
1938 if (rdata->length > 0)
1943 if (RECORD_LAYER_processed_read_pending(&sc->rlayer))
1946 return RECORD_LAYER_read_pending(&sc->rlayer);
1949 X509 *SSL_get1_peer_certificate(const SSL *s)
1951 X509 *r = SSL_get0_peer_certificate(s);
1959 X509 *SSL_get0_peer_certificate(const SSL *s)
1961 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1966 if (sc->session == NULL)
1969 return sc->session->peer;
1972 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
1975 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1980 if (sc->session == NULL)
1983 r = sc->session->peer_chain;
1986 * If we are a client, cert_chain includes the peer's own certificate; if
1987 * we are a server, it does not.
1994 * Now in theory, since the calling process own 't' it should be safe to
1995 * modify. We need to be able to read f without being hassled
1997 int SSL_copy_session_id(SSL *t, const SSL *f)
2000 /* TODO(QUIC): Not allowed for QUIC currently. */
2001 SSL_CONNECTION *tsc = SSL_CONNECTION_FROM_SSL_ONLY(t);
2002 const SSL_CONNECTION *fsc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(f);
2004 if (tsc == NULL || fsc == NULL)
2007 /* Do we need to do SSL locking? */
2008 if (!SSL_set_session(t, SSL_get_session(f))) {
2013 * what if we are setup for one protocol version but want to talk another
2015 if (t->method != f->method) {
2016 t->method->ssl_deinit(t);
2017 t->method = f->method;
2018 if (t->method->ssl_init(t) == 0)
2022 CRYPTO_UP_REF(&fsc->cert->references, &i);
2023 ssl_cert_free(tsc->cert);
2024 tsc->cert = fsc->cert;
2025 if (!SSL_set_session_id_context(t, fsc->sid_ctx, (int)fsc->sid_ctx_length)) {
2032 /* Fix this so it checks all the valid key/cert options */
2033 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
2035 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
2036 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
2039 if (ctx->cert->key->privatekey == NULL) {
2040 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
2043 return X509_check_private_key
2044 (ctx->cert->key->x509, ctx->cert->key->privatekey);
2047 /* Fix this function so that it takes an optional type parameter */
2048 int SSL_check_private_key(const SSL *ssl)
2050 const SSL_CONNECTION *sc;
2052 if ((sc = SSL_CONNECTION_FROM_CONST_SSL(ssl)) == NULL) {
2053 ERR_raise(ERR_LIB_SSL, ERR_R_PASSED_NULL_PARAMETER);
2056 if (sc->cert->key->x509 == NULL) {
2057 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
2060 if (sc->cert->key->privatekey == NULL) {
2061 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
2064 return X509_check_private_key(sc->cert->key->x509,
2065 sc->cert->key->privatekey);
2068 int SSL_waiting_for_async(SSL *s)
2070 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2081 int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
2083 ASYNC_WAIT_CTX *ctx;
2084 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2089 if ((ctx = sc->waitctx) == NULL)
2091 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
2094 int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
2095 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
2097 ASYNC_WAIT_CTX *ctx;
2098 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2103 if ((ctx = sc->waitctx) == NULL)
2105 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
2109 int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback)
2111 ctx->async_cb = callback;
2115 int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg)
2117 ctx->async_cb_arg = arg;
2121 int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback)
2123 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2128 sc->async_cb = callback;
2132 int SSL_set_async_callback_arg(SSL *s, void *arg)
2134 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2139 sc->async_cb_arg = arg;
2143 int SSL_get_async_status(SSL *s, int *status)
2145 ASYNC_WAIT_CTX *ctx;
2146 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2151 if ((ctx = sc->waitctx) == NULL)
2153 *status = ASYNC_WAIT_CTX_get_status(ctx);
2157 int SSL_accept(SSL *s)
2159 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2161 #ifndef OPENSSL_NO_QUIC
2163 return s->method->ssl_accept(s);
2169 if (sc->handshake_func == NULL) {
2170 /* Not properly initialized yet */
2171 SSL_set_accept_state(s);
2174 return SSL_do_handshake(s);
2177 int SSL_connect(SSL *s)
2179 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2181 #ifndef OPENSSL_NO_QUIC
2183 return s->method->ssl_connect(s);
2189 if (sc->handshake_func == NULL) {
2190 /* Not properly initialized yet */
2191 SSL_set_connect_state(s);
2194 return SSL_do_handshake(s);
2197 long SSL_get_default_timeout(const SSL *s)
2199 return (long int)ossl_time2seconds(s->method->get_timeout());
2202 static int ssl_async_wait_ctx_cb(void *arg)
2204 SSL *s = (SSL *)arg;
2205 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2210 return sc->async_cb(s, sc->async_cb_arg);
2213 static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
2214 int (*func) (void *))
2217 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2222 if (sc->waitctx == NULL) {
2223 sc->waitctx = ASYNC_WAIT_CTX_new();
2224 if (sc->waitctx == NULL)
2226 if (sc->async_cb != NULL
2227 && !ASYNC_WAIT_CTX_set_callback
2228 (sc->waitctx, ssl_async_wait_ctx_cb, s))
2232 sc->rwstate = SSL_NOTHING;
2233 switch (ASYNC_start_job(&sc->job, sc->waitctx, &ret, func, args,
2234 sizeof(struct ssl_async_args))) {
2236 sc->rwstate = SSL_NOTHING;
2237 ERR_raise(ERR_LIB_SSL, SSL_R_FAILED_TO_INIT_ASYNC);
2240 sc->rwstate = SSL_ASYNC_PAUSED;
2243 sc->rwstate = SSL_ASYNC_NO_JOBS;
2249 sc->rwstate = SSL_NOTHING;
2250 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
2251 /* Shouldn't happen */
2256 static int ssl_io_intern(void *vargs)
2258 struct ssl_async_args *args;
2264 args = (struct ssl_async_args *)vargs;
2268 if ((sc = SSL_CONNECTION_FROM_SSL(s)) == NULL)
2271 switch (args->type) {
2273 return args->f.func_read(s, buf, num, &sc->asyncrw);
2275 return args->f.func_write(s, buf, num, &sc->asyncrw);
2277 return args->f.func_other(s);
2282 int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2284 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2286 #ifndef OPENSSL_NO_QUIC
2288 return s->method->ssl_read(s, buf, num, readbytes);
2294 if (sc->handshake_func == NULL) {
2295 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2299 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2300 sc->rwstate = SSL_NOTHING;
2304 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2305 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
2306 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2310 * If we are a client and haven't received the ServerHello etc then we
2313 ossl_statem_check_finish_init(sc, 0);
2315 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2316 struct ssl_async_args args;
2322 args.type = READFUNC;
2323 args.f.func_read = s->method->ssl_read;
2325 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2326 *readbytes = sc->asyncrw;
2329 return s->method->ssl_read(s, buf, num, readbytes);
2333 int SSL_read(SSL *s, void *buf, int num)
2339 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2343 ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
2346 * The cast is safe here because ret should be <= INT_MAX because num is
2350 ret = (int)readbytes;
2355 int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2357 int ret = ssl_read_internal(s, buf, num, readbytes);
2364 int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
2367 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2369 /* TODO(QUIC 0RTT): 0-RTT support */
2370 if (sc == NULL || !sc->server) {
2371 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2372 return SSL_READ_EARLY_DATA_ERROR;
2375 switch (sc->early_data_state) {
2376 case SSL_EARLY_DATA_NONE:
2377 if (!SSL_in_before(s)) {
2378 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2379 return SSL_READ_EARLY_DATA_ERROR;
2383 case SSL_EARLY_DATA_ACCEPT_RETRY:
2384 sc->early_data_state = SSL_EARLY_DATA_ACCEPTING;
2385 ret = SSL_accept(s);
2388 sc->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
2389 return SSL_READ_EARLY_DATA_ERROR;
2393 case SSL_EARLY_DATA_READ_RETRY:
2394 if (sc->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
2395 sc->early_data_state = SSL_EARLY_DATA_READING;
2396 ret = SSL_read_ex(s, buf, num, readbytes);
2398 * State machine will update early_data_state to
2399 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
2402 if (ret > 0 || (ret <= 0 && sc->early_data_state
2403 != SSL_EARLY_DATA_FINISHED_READING)) {
2404 sc->early_data_state = SSL_EARLY_DATA_READ_RETRY;
2405 return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
2406 : SSL_READ_EARLY_DATA_ERROR;
2409 sc->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
2412 return SSL_READ_EARLY_DATA_FINISH;
2415 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2416 return SSL_READ_EARLY_DATA_ERROR;
2420 int SSL_get_early_data_status(const SSL *s)
2422 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
2424 /* TODO(QUIC 0RTT): 0-RTT support */
2428 return sc->ext.early_data;
2431 static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2433 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2435 #ifndef OPENSSL_NO_QUIC
2437 return s->method->ssl_peek(s, buf, num, readbytes);
2443 if (sc->handshake_func == NULL) {
2444 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2448 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2451 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2452 struct ssl_async_args args;
2458 args.type = READFUNC;
2459 args.f.func_read = s->method->ssl_peek;
2461 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2462 *readbytes = sc->asyncrw;
2465 return s->method->ssl_peek(s, buf, num, readbytes);
2469 int SSL_peek(SSL *s, void *buf, int num)
2475 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2479 ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
2482 * The cast is safe here because ret should be <= INT_MAX because num is
2486 ret = (int)readbytes;
2492 int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2494 int ret = ssl_peek_internal(s, buf, num, readbytes);
2501 int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written)
2503 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2505 #ifndef OPENSSL_NO_QUIC
2507 return s->method->ssl_write(s, buf, num, written);
2513 if (sc->handshake_func == NULL) {
2514 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2518 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2519 sc->rwstate = SSL_NOTHING;
2520 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2524 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2525 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
2526 || sc->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
2527 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2530 /* If we are a client and haven't sent the Finished we better do that */
2531 ossl_statem_check_finish_init(sc, 1);
2533 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2535 struct ssl_async_args args;
2538 args.buf = (void *)buf;
2540 args.type = WRITEFUNC;
2541 args.f.func_write = s->method->ssl_write;
2543 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2544 *written = sc->asyncrw;
2547 return s->method->ssl_write(s, buf, num, written);
2551 ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size, int flags)
2554 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2559 if (sc->handshake_func == NULL) {
2560 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2564 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2565 sc->rwstate = SSL_NOTHING;
2566 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2570 if (!BIO_get_ktls_send(sc->wbio)) {
2571 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2575 /* If we have an alert to send, lets send it */
2576 if (sc->s3.alert_dispatch > 0) {
2577 ret = (ossl_ssize_t)s->method->ssl_dispatch_alert(s);
2579 /* SSLfatal() already called if appropriate */
2582 /* if it went, fall through and send more stuff */
2585 sc->rwstate = SSL_WRITING;
2586 if (BIO_flush(sc->wbio) <= 0) {
2587 if (!BIO_should_retry(sc->wbio)) {
2588 sc->rwstate = SSL_NOTHING;
2591 set_sys_error(EAGAIN);
2597 #ifdef OPENSSL_NO_KTLS
2598 ERR_raise_data(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR,
2599 "can't call ktls_sendfile(), ktls disabled");
2602 ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags);
2604 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2605 if ((get_last_sys_error() == EAGAIN) ||
2606 (get_last_sys_error() == EINTR) ||
2607 (get_last_sys_error() == EBUSY))
2608 BIO_set_retry_write(sc->wbio);
2611 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2614 sc->rwstate = SSL_NOTHING;
2619 int SSL_write(SSL *s, const void *buf, int num)
2625 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2629 ret = ssl_write_internal(s, buf, (size_t)num, &written);
2632 * The cast is safe here because ret should be <= INT_MAX because num is
2641 int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
2643 int ret = ssl_write_internal(s, buf, num, written);
2650 int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
2652 int ret, early_data_state;
2654 uint32_t partialwrite;
2655 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2657 /* TODO(QUIC): This will need special handling for QUIC */
2661 switch (sc->early_data_state) {
2662 case SSL_EARLY_DATA_NONE:
2664 || !SSL_in_before(s)
2665 || ((sc->session == NULL || sc->session->ext.max_early_data == 0)
2666 && (sc->psk_use_session_cb == NULL))) {
2667 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2672 case SSL_EARLY_DATA_CONNECT_RETRY:
2673 sc->early_data_state = SSL_EARLY_DATA_CONNECTING;
2674 ret = SSL_connect(s);
2677 sc->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
2682 case SSL_EARLY_DATA_WRITE_RETRY:
2683 sc->early_data_state = SSL_EARLY_DATA_WRITING;
2685 * We disable partial write for early data because we don't keep track
2686 * of how many bytes we've written between the SSL_write_ex() call and
2687 * the flush if the flush needs to be retried)
2689 partialwrite = sc->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
2690 sc->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
2691 ret = SSL_write_ex(s, buf, num, &writtmp);
2692 sc->mode |= partialwrite;
2694 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2697 sc->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
2700 case SSL_EARLY_DATA_WRITE_FLUSH:
2701 /* The buffering BIO is still in place so we need to flush it */
2702 if (statem_flush(sc) != 1)
2705 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2708 case SSL_EARLY_DATA_FINISHED_READING:
2709 case SSL_EARLY_DATA_READ_RETRY:
2710 early_data_state = sc->early_data_state;
2711 /* We are a server writing to an unauthenticated client */
2712 sc->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
2713 ret = SSL_write_ex(s, buf, num, written);
2714 /* The buffering BIO is still in place */
2716 (void)BIO_flush(sc->wbio);
2717 sc->early_data_state = early_data_state;
2721 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2726 int SSL_shutdown(SSL *s)
2729 * Note that this function behaves differently from what one might
2730 * expect. Return values are 0 for no success (yet), 1 for success; but
2731 * calling it once is usually not enough, even if blocking I/O is used
2732 * (see ssl3_shutdown).
2734 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2736 #ifndef OPENSSL_NO_QUIC
2738 return ossl_quic_conn_shutdown(s, 0, NULL, 0);
2744 if (sc->handshake_func == NULL) {
2745 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2749 if (!SSL_in_init(s)) {
2750 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2751 struct ssl_async_args args;
2753 memset(&args, 0, sizeof(args));
2755 args.type = OTHERFUNC;
2756 args.f.func_other = s->method->ssl_shutdown;
2758 return ssl_start_async_job(s, &args, ssl_io_intern);
2760 return s->method->ssl_shutdown(s);
2763 ERR_raise(ERR_LIB_SSL, SSL_R_SHUTDOWN_WHILE_IN_INIT);
2768 int SSL_key_update(SSL *s, int updatetype)
2770 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2772 #ifndef OPENSSL_NO_QUIC
2774 return ossl_quic_key_update(s, updatetype);
2780 if (!SSL_CONNECTION_IS_TLS13(sc)) {
2781 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2785 if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
2786 && updatetype != SSL_KEY_UPDATE_REQUESTED) {
2787 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_KEY_UPDATE_TYPE);
2791 if (!SSL_is_init_finished(s)) {
2792 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
2796 if (RECORD_LAYER_write_pending(&sc->rlayer)) {
2797 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_WRITE_RETRY);
2801 ossl_statem_set_in_init(sc, 1);
2802 sc->key_update = updatetype;
2806 int SSL_get_key_update_type(const SSL *s)
2808 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
2810 #ifndef OPENSSL_NO_QUIC
2812 return ossl_quic_get_key_update_type(s);
2818 return sc->key_update;
2822 * Can we accept a renegotiation request? If yes, set the flag and
2823 * return 1 if yes. If not, raise error and return 0.
2825 static int can_renegotiate(const SSL_CONNECTION *sc)
2827 if (SSL_CONNECTION_IS_TLS13(sc)) {
2828 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2832 if ((sc->options & SSL_OP_NO_RENEGOTIATION) != 0) {
2833 ERR_raise(ERR_LIB_SSL, SSL_R_NO_RENEGOTIATION);
2840 int SSL_renegotiate(SSL *s)
2842 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2847 if (!can_renegotiate(sc))
2850 sc->renegotiate = 1;
2851 sc->new_session = 1;
2852 return s->method->ssl_renegotiate(s);
2855 int SSL_renegotiate_abbreviated(SSL *s)
2857 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2862 if (!can_renegotiate(sc))
2865 sc->renegotiate = 1;
2866 sc->new_session = 0;
2867 return s->method->ssl_renegotiate(s);
2870 int SSL_renegotiate_pending(const SSL *s)
2872 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2878 * becomes true when negotiation is requested; false again once a
2879 * handshake has finished
2881 return (sc->renegotiate != 0);
2884 int SSL_new_session_ticket(SSL *s)
2886 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2891 /* If we are in init because we're sending tickets, okay to send more. */
2892 if ((SSL_in_init(s) && sc->ext.extra_tickets_expected == 0)
2893 || SSL_IS_FIRST_HANDSHAKE(sc) || !sc->server
2894 || !SSL_CONNECTION_IS_TLS13(sc))
2896 sc->ext.extra_tickets_expected++;
2897 if (!RECORD_LAYER_write_pending(&sc->rlayer) && !SSL_in_init(s))
2898 ossl_statem_set_in_init(sc, 1);
2902 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
2905 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2907 /* TODO(QUIC): Special handling for some ctrls will be needed */
2912 case SSL_CTRL_GET_READ_AHEAD:
2915 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
2916 case SSL_CTRL_SET_READ_AHEAD:
2919 l = RECORD_LAYER_get_read_ahead(&sc->rlayer);
2920 RECORD_LAYER_set_read_ahead(&sc->rlayer, larg);
2925 OSSL_PARAM options[2], *opts = options;
2929 *opts++ = OSSL_PARAM_construct_uint32(OSSL_LIBSSL_RECORD_LAYER_PARAM_MODE,
2931 *opts = OSSL_PARAM_construct_end();
2933 /* Ignore return value */
2934 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
2938 case SSL_CTRL_CLEAR_MODE:
2939 return (sc->mode &= ~larg);
2940 case SSL_CTRL_GET_MAX_CERT_LIST:
2941 return (long)sc->max_cert_list;
2942 case SSL_CTRL_SET_MAX_CERT_LIST:
2945 l = (long)sc->max_cert_list;
2946 sc->max_cert_list = (size_t)larg;
2948 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2949 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH || IS_QUIC(s))
2951 #ifndef OPENSSL_NO_KTLS
2952 if (sc->wbio != NULL && BIO_get_ktls_send(sc->wbio))
2954 #endif /* OPENSSL_NO_KTLS */
2955 sc->max_send_fragment = larg;
2956 if (sc->max_send_fragment < sc->split_send_fragment)
2957 sc->split_send_fragment = sc->max_send_fragment;
2958 sc->rlayer.wrlmethod->set_max_frag_len(sc->rlayer.wrl, larg);
2960 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2961 if ((size_t)larg > sc->max_send_fragment || larg == 0 || IS_QUIC(s))
2963 sc->split_send_fragment = larg;
2965 case SSL_CTRL_SET_MAX_PIPELINES:
2966 if (larg < 1 || larg > SSL_MAX_PIPELINES || IS_QUIC(s))
2968 sc->max_pipelines = larg;
2969 if (sc->rlayer.rrlmethod->set_max_pipelines != NULL)
2970 sc->rlayer.rrlmethod->set_max_pipelines(sc->rlayer.rrl, (size_t)larg);
2972 case SSL_CTRL_GET_RI_SUPPORT:
2973 return sc->s3.send_connection_binding;
2974 case SSL_CTRL_SET_RETRY_VERIFY:
2975 sc->rwstate = SSL_RETRY_VERIFY;
2977 case SSL_CTRL_CERT_FLAGS:
2978 return (sc->cert->cert_flags |= larg);
2979 case SSL_CTRL_CLEAR_CERT_FLAGS:
2980 return (sc->cert->cert_flags &= ~larg);
2982 case SSL_CTRL_GET_RAW_CIPHERLIST:
2984 if (sc->s3.tmp.ciphers_raw == NULL)
2986 *(unsigned char **)parg = sc->s3.tmp.ciphers_raw;
2987 return (int)sc->s3.tmp.ciphers_rawlen;
2989 return TLS_CIPHER_LEN;
2991 case SSL_CTRL_GET_EXTMS_SUPPORT:
2992 if (!sc->session || SSL_in_init(s) || ossl_statem_get_in_handshake(sc))
2994 if (sc->session->flags & SSL_SESS_FLAG_EXTMS)
2998 case SSL_CTRL_SET_MIN_PROTO_VERSION:
2999 return ssl_check_allowed_versions(larg, sc->max_proto_version)
3000 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
3001 &sc->min_proto_version);
3002 case SSL_CTRL_GET_MIN_PROTO_VERSION:
3003 return sc->min_proto_version;
3004 case SSL_CTRL_SET_MAX_PROTO_VERSION:
3005 return ssl_check_allowed_versions(sc->min_proto_version, larg)
3006 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
3007 &sc->max_proto_version);
3008 case SSL_CTRL_GET_MAX_PROTO_VERSION:
3009 return sc->max_proto_version;
3011 return s->method->ssl_ctrl(s, cmd, larg, parg);
3015 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
3017 return s->method->ssl_callback_ctrl(s, cmd, fp);
3020 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
3022 return ctx->sessions;
3025 static int ssl_tsan_load(SSL_CTX *ctx, TSAN_QUALIFIER int *stat)
3029 if (ssl_tsan_lock(ctx)) {
3030 res = tsan_load(stat);
3031 ssl_tsan_unlock(ctx);
3036 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
3039 /* For some cases with ctx == NULL perform syntax checks */
3042 case SSL_CTRL_SET_GROUPS_LIST:
3043 return tls1_set_groups_list(ctx, NULL, NULL, parg);
3044 case SSL_CTRL_SET_SIGALGS_LIST:
3045 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
3046 return tls1_set_sigalgs_list(NULL, parg, 0);
3053 case SSL_CTRL_GET_READ_AHEAD:
3054 return ctx->read_ahead;
3055 case SSL_CTRL_SET_READ_AHEAD:
3056 l = ctx->read_ahead;
3057 ctx->read_ahead = larg;
3060 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
3061 ctx->msg_callback_arg = parg;
3064 case SSL_CTRL_GET_MAX_CERT_LIST:
3065 return (long)ctx->max_cert_list;
3066 case SSL_CTRL_SET_MAX_CERT_LIST:
3069 l = (long)ctx->max_cert_list;
3070 ctx->max_cert_list = (size_t)larg;
3073 case SSL_CTRL_SET_SESS_CACHE_SIZE:
3076 l = (long)ctx->session_cache_size;
3077 ctx->session_cache_size = (size_t)larg;
3079 case SSL_CTRL_GET_SESS_CACHE_SIZE:
3080 return (long)ctx->session_cache_size;
3081 case SSL_CTRL_SET_SESS_CACHE_MODE:
3082 l = ctx->session_cache_mode;
3083 ctx->session_cache_mode = larg;
3085 case SSL_CTRL_GET_SESS_CACHE_MODE:
3086 return ctx->session_cache_mode;
3088 case SSL_CTRL_SESS_NUMBER:
3089 return lh_SSL_SESSION_num_items(ctx->sessions);
3090 case SSL_CTRL_SESS_CONNECT:
3091 return ssl_tsan_load(ctx, &ctx->stats.sess_connect);
3092 case SSL_CTRL_SESS_CONNECT_GOOD:
3093 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_good);
3094 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
3095 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_renegotiate);
3096 case SSL_CTRL_SESS_ACCEPT:
3097 return ssl_tsan_load(ctx, &ctx->stats.sess_accept);
3098 case SSL_CTRL_SESS_ACCEPT_GOOD:
3099 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_good);
3100 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
3101 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_renegotiate);
3102 case SSL_CTRL_SESS_HIT:
3103 return ssl_tsan_load(ctx, &ctx->stats.sess_hit);
3104 case SSL_CTRL_SESS_CB_HIT:
3105 return ssl_tsan_load(ctx, &ctx->stats.sess_cb_hit);
3106 case SSL_CTRL_SESS_MISSES:
3107 return ssl_tsan_load(ctx, &ctx->stats.sess_miss);
3108 case SSL_CTRL_SESS_TIMEOUTS:
3109 return ssl_tsan_load(ctx, &ctx->stats.sess_timeout);
3110 case SSL_CTRL_SESS_CACHE_FULL:
3111 return ssl_tsan_load(ctx, &ctx->stats.sess_cache_full);
3113 return (ctx->mode |= larg);
3114 case SSL_CTRL_CLEAR_MODE:
3115 return (ctx->mode &= ~larg);
3116 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
3117 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
3119 ctx->max_send_fragment = larg;
3120 if (ctx->max_send_fragment < ctx->split_send_fragment)
3121 ctx->split_send_fragment = ctx->max_send_fragment;
3123 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
3124 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
3126 ctx->split_send_fragment = larg;
3128 case SSL_CTRL_SET_MAX_PIPELINES:
3129 if (larg < 1 || larg > SSL_MAX_PIPELINES)
3131 ctx->max_pipelines = larg;
3133 case SSL_CTRL_CERT_FLAGS:
3134 return (ctx->cert->cert_flags |= larg);
3135 case SSL_CTRL_CLEAR_CERT_FLAGS:
3136 return (ctx->cert->cert_flags &= ~larg);
3137 case SSL_CTRL_SET_MIN_PROTO_VERSION:
3138 return ssl_check_allowed_versions(larg, ctx->max_proto_version)
3139 && ssl_set_version_bound(ctx->method->version, (int)larg,
3140 &ctx->min_proto_version);
3141 case SSL_CTRL_GET_MIN_PROTO_VERSION:
3142 return ctx->min_proto_version;
3143 case SSL_CTRL_SET_MAX_PROTO_VERSION:
3144 return ssl_check_allowed_versions(ctx->min_proto_version, larg)
3145 && ssl_set_version_bound(ctx->method->version, (int)larg,
3146 &ctx->max_proto_version);
3147 case SSL_CTRL_GET_MAX_PROTO_VERSION:
3148 return ctx->max_proto_version;
3150 return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
3154 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
3157 case SSL_CTRL_SET_MSG_CALLBACK:
3158 ctx->msg_callback = (void (*)
3159 (int write_p, int version, int content_type,
3160 const void *buf, size_t len, SSL *ssl,
3165 return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
3169 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
3178 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
3179 const SSL_CIPHER *const *bp)
3181 if ((*ap)->id > (*bp)->id)
3183 if ((*ap)->id < (*bp)->id)
3189 * return a STACK of the ciphers available for the SSL and in order of
3192 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
3194 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3197 if (sc->cipher_list != NULL) {
3198 return sc->cipher_list;
3199 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
3200 return s->ctx->cipher_list;
3206 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
3208 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3210 if (sc == NULL || !sc->server)
3212 return sc->peer_ciphers;
3215 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
3217 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
3219 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3224 ciphers = SSL_get_ciphers(s);
3227 if (!ssl_set_client_disabled(sc))
3229 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
3230 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
3231 if (!ssl_cipher_disabled(sc, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
3233 sk = sk_SSL_CIPHER_new_null();
3236 if (!sk_SSL_CIPHER_push(sk, c)) {
3237 sk_SSL_CIPHER_free(sk);
3245 /** return a STACK of the ciphers available for the SSL and in order of
3247 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL_CONNECTION *s)
3250 if (s->cipher_list_by_id != NULL)
3251 return s->cipher_list_by_id;
3252 else if (s->ssl.ctx != NULL
3253 && s->ssl.ctx->cipher_list_by_id != NULL)
3254 return s->ssl.ctx->cipher_list_by_id;
3259 /** The old interface to get the same thing as SSL_get_ciphers() */
3260 const char *SSL_get_cipher_list(const SSL *s, int n)
3262 const SSL_CIPHER *c;
3263 STACK_OF(SSL_CIPHER) *sk;
3267 sk = SSL_get_ciphers(s);
3268 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
3270 c = sk_SSL_CIPHER_value(sk, n);
3276 /** return a STACK of the ciphers available for the SSL_CTX and in order of
3278 STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
3281 return ctx->cipher_list;
3286 * Distinguish between ciphers controlled by set_ciphersuite() and
3287 * set_cipher_list() when counting.
3289 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
3292 const SSL_CIPHER *c;
3296 for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
3297 c = sk_SSL_CIPHER_value(sk, i);
3298 if (c->min_tls >= TLS1_3_VERSION)
3305 /** specify the ciphers to be used by default by the SSL_CTX */
3306 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
3308 STACK_OF(SSL_CIPHER) *sk;
3310 sk = ssl_create_cipher_list(ctx, ctx->tls13_ciphersuites,
3311 &ctx->cipher_list, &ctx->cipher_list_by_id, str,
3314 * ssl_create_cipher_list may return an empty stack if it was unable to
3315 * find a cipher matching the given rule string (for example if the rule
3316 * string specifies a cipher which has been disabled). This is not an
3317 * error as far as ssl_create_cipher_list is concerned, and hence
3318 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
3322 else if (cipher_list_tls12_num(sk) == 0) {
3323 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3329 /** specify the ciphers to be used by the SSL */
3330 int SSL_set_cipher_list(SSL *s, const char *str)
3332 STACK_OF(SSL_CIPHER) *sk;
3333 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3338 sk = ssl_create_cipher_list(s->ctx, sc->tls13_ciphersuites,
3339 &sc->cipher_list, &sc->cipher_list_by_id, str,
3341 /* see comment in SSL_CTX_set_cipher_list */
3344 else if (cipher_list_tls12_num(sk) == 0) {
3345 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3351 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
3354 STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
3355 const SSL_CIPHER *c;
3357 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3363 || sc->peer_ciphers == NULL
3368 clntsk = sc->peer_ciphers;
3369 srvrsk = SSL_get_ciphers(s);
3370 if (clntsk == NULL || srvrsk == NULL)
3373 if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
3376 for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
3379 c = sk_SSL_CIPHER_value(clntsk, i);
3380 if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
3383 n = strlen(c->name);
3400 * Return the requested servername (SNI) value. Note that the behaviour varies
3402 * - whether this is called by the client or the server,
3403 * - if we are before or during/after the handshake,
3404 * - if a resumption or normal handshake is being attempted/has occurred
3405 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
3407 * Note that only the host_name type is defined (RFC 3546).
3409 const char *SSL_get_servername(const SSL *s, const int type)
3411 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3418 * If we don't know if we are the client or the server yet then we assume
3421 server = sc->handshake_func == NULL ? 0 : sc->server;
3423 if (type != TLSEXT_NAMETYPE_host_name)
3429 * In TLSv1.3 on the server SNI is not associated with the session
3430 * but in TLSv1.2 or below it is.
3432 * Before the handshake:
3435 * During/after the handshake (TLSv1.2 or below resumption occurred):
3436 * - If a servername was accepted by the server in the original
3437 * handshake then it will return that servername, or NULL otherwise.
3439 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3440 * - The function will return the servername requested by the client in
3441 * this handshake or NULL if none was requested.
3443 if (sc->hit && !SSL_CONNECTION_IS_TLS13(sc))
3444 return sc->session->ext.hostname;
3449 * Before the handshake:
3450 * - If a servername has been set via a call to
3451 * SSL_set_tlsext_host_name() then it will return that servername
3452 * - If one has not been set, but a TLSv1.2 resumption is being
3453 * attempted and the session from the original handshake had a
3454 * servername accepted by the server then it will return that
3456 * - Otherwise it returns NULL
3458 * During/after the handshake (TLSv1.2 or below resumption occurred):
3459 * - If the session from the original handshake had a servername accepted
3460 * by the server then it will return that servername.
3461 * - Otherwise it returns the servername set via
3462 * SSL_set_tlsext_host_name() (or NULL if it was not called).
3464 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3465 * - It will return the servername set via SSL_set_tlsext_host_name()
3466 * (or NULL if it was not called).
3468 if (SSL_in_before(s)) {
3469 if (sc->ext.hostname == NULL
3470 && sc->session != NULL
3471 && sc->session->ssl_version != TLS1_3_VERSION)
3472 return sc->session->ext.hostname;
3474 if (!SSL_CONNECTION_IS_TLS13(sc) && sc->hit
3475 && sc->session->ext.hostname != NULL)
3476 return sc->session->ext.hostname;
3480 return sc->ext.hostname;
3483 int SSL_get_servername_type(const SSL *s)
3485 if (SSL_get_servername(s, TLSEXT_NAMETYPE_host_name) != NULL)
3486 return TLSEXT_NAMETYPE_host_name;
3491 * SSL_select_next_proto implements the standard protocol selection. It is
3492 * expected that this function is called from the callback set by
3493 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
3494 * vector of 8-bit, length prefixed byte strings. The length byte itself is
3495 * not included in the length. A byte string of length 0 is invalid. No byte
3496 * string may be truncated. The current, but experimental algorithm for
3497 * selecting the protocol is: 1) If the server doesn't support NPN then this
3498 * is indicated to the callback. In this case, the client application has to
3499 * abort the connection or have a default application level protocol. 2) If
3500 * the server supports NPN, but advertises an empty list then the client
3501 * selects the first protocol in its list, but indicates via the API that this
3502 * fallback case was enacted. 3) Otherwise, the client finds the first
3503 * protocol in the server's list that it supports and selects this protocol.
3504 * This is because it's assumed that the server has better information about
3505 * which protocol a client should use. 4) If the client doesn't support any
3506 * of the server's advertised protocols, then this is treated the same as
3507 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
3508 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
3510 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
3511 const unsigned char *server,
3512 unsigned int server_len,
3513 const unsigned char *client, unsigned int client_len)
3516 const unsigned char *result;
3517 int status = OPENSSL_NPN_UNSUPPORTED;
3520 * For each protocol in server preference order, see if we support it.
3522 for (i = 0; i < server_len;) {
3523 for (j = 0; j < client_len;) {
3524 if (server[i] == client[j] &&
3525 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
3526 /* We found a match */
3527 result = &server[i];
3528 status = OPENSSL_NPN_NEGOTIATED;
3538 /* There's no overlap between our protocols and the server's list. */
3540 status = OPENSSL_NPN_NO_OVERLAP;
3543 *out = (unsigned char *)result + 1;
3544 *outlen = result[0];
3548 #ifndef OPENSSL_NO_NEXTPROTONEG
3550 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
3551 * client's requested protocol for this connection and returns 0. If the
3552 * client didn't request any protocol, then *data is set to NULL. Note that
3553 * the client can request any protocol it chooses. The value returned from
3554 * this function need not be a member of the list of supported protocols
3555 * provided by the callback.
3557 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
3560 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3563 /* We have no other way to indicate error */
3569 *data = sc->ext.npn;
3570 if (*data == NULL) {
3573 *len = (unsigned int)sc->ext.npn_len;
3578 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
3579 * a TLS server needs a list of supported protocols for Next Protocol
3580 * Negotiation. The returned list must be in wire format. The list is
3581 * returned by setting |out| to point to it and |outlen| to its length. This
3582 * memory will not be modified, but one should assume that the SSL* keeps a
3583 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
3584 * wishes to advertise. Otherwise, no such extension will be included in the
3587 void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
3588 SSL_CTX_npn_advertised_cb_func cb,
3591 if (IS_QUIC_CTX(ctx))
3592 /* NPN not allowed for QUIC */
3595 ctx->ext.npn_advertised_cb = cb;
3596 ctx->ext.npn_advertised_cb_arg = arg;
3600 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
3601 * client needs to select a protocol from the server's provided list. |out|
3602 * must be set to point to the selected protocol (which may be within |in|).
3603 * The length of the protocol name must be written into |outlen|. The
3604 * server's advertised protocols are provided in |in| and |inlen|. The
3605 * callback can assume that |in| is syntactically valid. The client must
3606 * select a protocol. It is fatal to the connection if this callback returns
3607 * a value other than SSL_TLSEXT_ERR_OK.
3609 void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
3610 SSL_CTX_npn_select_cb_func cb,
3613 if (IS_QUIC_CTX(ctx))
3614 /* NPN not allowed for QUIC */
3617 ctx->ext.npn_select_cb = cb;
3618 ctx->ext.npn_select_cb_arg = arg;
3622 static int alpn_value_ok(const unsigned char *protos, unsigned int protos_len)
3626 if (protos_len < 2 || protos == NULL)
3629 for (idx = 0; idx < protos_len; idx += protos[idx] + 1) {
3630 if (protos[idx] == 0)
3633 return idx == protos_len;
3636 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
3637 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3638 * length-prefixed strings). Returns 0 on success.
3640 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
3641 unsigned int protos_len)
3643 unsigned char *alpn;
3645 if (protos_len == 0 || protos == NULL) {
3646 OPENSSL_free(ctx->ext.alpn);
3647 ctx->ext.alpn = NULL;
3648 ctx->ext.alpn_len = 0;
3651 /* Not valid per RFC */
3652 if (!alpn_value_ok(protos, protos_len))
3655 alpn = OPENSSL_memdup(protos, protos_len);
3658 OPENSSL_free(ctx->ext.alpn);
3659 ctx->ext.alpn = alpn;
3660 ctx->ext.alpn_len = protos_len;
3666 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
3667 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3668 * length-prefixed strings). Returns 0 on success.
3670 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
3671 unsigned int protos_len)
3673 unsigned char *alpn;
3674 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
3679 if (protos_len == 0 || protos == NULL) {
3680 OPENSSL_free(sc->ext.alpn);
3681 sc->ext.alpn = NULL;
3682 sc->ext.alpn_len = 0;
3685 /* Not valid per RFC */
3686 if (!alpn_value_ok(protos, protos_len))
3689 alpn = OPENSSL_memdup(protos, protos_len);
3692 OPENSSL_free(sc->ext.alpn);
3693 sc->ext.alpn = alpn;
3694 sc->ext.alpn_len = protos_len;
3700 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3701 * called during ClientHello processing in order to select an ALPN protocol
3702 * from the client's list of offered protocols.
3704 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
3705 SSL_CTX_alpn_select_cb_func cb,
3708 ctx->ext.alpn_select_cb = cb;
3709 ctx->ext.alpn_select_cb_arg = arg;
3713 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3714 * On return it sets |*data| to point to |*len| bytes of protocol name
3715 * (not including the leading length-prefix byte). If the server didn't
3716 * respond with a negotiated protocol then |*len| will be zero.
3718 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
3721 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
3724 /* We have no other way to indicate error */
3730 *data = sc->s3.alpn_selected;
3734 *len = (unsigned int)sc->s3.alpn_selected_len;
3737 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
3738 const char *label, size_t llen,
3739 const unsigned char *context, size_t contextlen,
3742 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3747 if (sc->session == NULL
3748 || (sc->version < TLS1_VERSION && sc->version != DTLS1_BAD_VER))
3751 return s->method->ssl3_enc->export_keying_material(sc, out, olen, label,
3753 contextlen, use_context);
3756 int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
3757 const char *label, size_t llen,
3758 const unsigned char *context,
3761 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3766 if (sc->version != TLS1_3_VERSION)
3769 return tls13_export_keying_material_early(sc, out, olen, label, llen,
3770 context, contextlen);
3773 static unsigned long ssl_session_hash(const SSL_SESSION *a)
3775 const unsigned char *session_id = a->session_id;
3777 unsigned char tmp_storage[4];
3779 if (a->session_id_length < sizeof(tmp_storage)) {
3780 memset(tmp_storage, 0, sizeof(tmp_storage));
3781 memcpy(tmp_storage, a->session_id, a->session_id_length);
3782 session_id = tmp_storage;
3786 ((unsigned long)session_id[0]) |
3787 ((unsigned long)session_id[1] << 8L) |
3788 ((unsigned long)session_id[2] << 16L) |
3789 ((unsigned long)session_id[3] << 24L);
3794 * NB: If this function (or indeed the hash function which uses a sort of
3795 * coarser function than this one) is changed, ensure
3796 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3797 * being able to construct an SSL_SESSION that will collide with any existing
3798 * session with a matching session ID.
3800 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
3802 if (a->ssl_version != b->ssl_version)
3804 if (a->session_id_length != b->session_id_length)
3806 return memcmp(a->session_id, b->session_id, a->session_id_length);
3810 * These wrapper functions should remain rather than redeclaring
3811 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3812 * variable. The reason is that the functions aren't static, they're exposed
3816 SSL_CTX *SSL_CTX_new_ex(OSSL_LIB_CTX *libctx, const char *propq,
3817 const SSL_METHOD *meth)
3819 SSL_CTX *ret = NULL;
3820 #ifndef OPENSSL_NO_COMP_ALG
3825 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_METHOD_PASSED);
3829 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
3832 /* Doing this for the run once effect */
3833 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3834 ERR_raise(ERR_LIB_SSL, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
3838 ret = OPENSSL_zalloc(sizeof(*ret));
3842 /* Init the reference counting before any call to SSL_CTX_free */
3843 if (!CRYPTO_NEW_REF(&ret->references, 1)) {
3848 ret->lock = CRYPTO_THREAD_lock_new();
3849 if (ret->lock == NULL) {
3850 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3854 #ifdef TSAN_REQUIRES_LOCKING
3855 ret->tsan_lock = CRYPTO_THREAD_lock_new();
3856 if (ret->tsan_lock == NULL) {
3857 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3862 ret->libctx = libctx;
3863 if (propq != NULL) {
3864 ret->propq = OPENSSL_strdup(propq);
3865 if (ret->propq == NULL)
3870 ret->min_proto_version = 0;
3871 ret->max_proto_version = 0;
3872 ret->mode = SSL_MODE_AUTO_RETRY;
3873 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
3874 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
3875 /* We take the system default. */
3876 ret->session_timeout = meth->get_timeout();
3877 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
3878 ret->verify_mode = SSL_VERIFY_NONE;
3880 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
3881 if (ret->sessions == NULL) {
3882 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3885 ret->cert_store = X509_STORE_new();
3886 if (ret->cert_store == NULL) {
3887 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3890 #ifndef OPENSSL_NO_CT
3891 ret->ctlog_store = CTLOG_STORE_new_ex(libctx, propq);
3892 if (ret->ctlog_store == NULL) {
3893 ERR_raise(ERR_LIB_SSL, ERR_R_CT_LIB);
3898 /* initialize cipher/digest methods table */
3899 if (!ssl_load_ciphers(ret)) {
3900 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3904 if (!ssl_load_groups(ret)) {
3905 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3909 /* load provider sigalgs */
3910 if (!ssl_load_sigalgs(ret)) {
3911 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3915 /* initialise sig algs */
3916 if (!ssl_setup_sigalgs(ret)) {
3917 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3921 if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites())) {
3922 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3926 if ((ret->cert = ssl_cert_new(SSL_PKEY_NUM + ret->sigalg_list_len)) == NULL) {
3927 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3931 if (!ssl_create_cipher_list(ret,
3932 ret->tls13_ciphersuites,
3933 &ret->cipher_list, &ret->cipher_list_by_id,
3934 OSSL_default_cipher_list(), ret->cert)
3935 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
3936 ERR_raise(ERR_LIB_SSL, SSL_R_LIBRARY_HAS_NO_CIPHERS);
3940 ret->param = X509_VERIFY_PARAM_new();
3941 if (ret->param == NULL) {
3942 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3947 * If these aren't available from the provider we'll get NULL returns.
3948 * That's fine but will cause errors later if SSLv3 is negotiated
3950 ret->md5 = ssl_evp_md_fetch(libctx, NID_md5, propq);
3951 ret->sha1 = ssl_evp_md_fetch(libctx, NID_sha1, propq);
3953 if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL) {
3954 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3958 if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL) {
3959 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3963 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) {
3964 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3968 if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
3971 /* No compression for DTLS */
3972 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
3973 ret->comp_methods = SSL_COMP_get_compression_methods();
3975 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3976 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3978 /* Setup RFC5077 ticket keys */
3979 if ((RAND_bytes_ex(libctx, ret->ext.tick_key_name,
3980 sizeof(ret->ext.tick_key_name), 0) <= 0)
3981 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_hmac_key,
3982 sizeof(ret->ext.secure->tick_hmac_key), 0) <= 0)
3983 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_aes_key,
3984 sizeof(ret->ext.secure->tick_aes_key), 0) <= 0))
3985 ret->options |= SSL_OP_NO_TICKET;
3987 if (RAND_priv_bytes_ex(libctx, ret->ext.cookie_hmac_key,
3988 sizeof(ret->ext.cookie_hmac_key), 0) <= 0) {
3989 ERR_raise(ERR_LIB_SSL, ERR_R_RAND_LIB);
3993 #ifndef OPENSSL_NO_SRP
3994 if (!ssl_ctx_srp_ctx_init_intern(ret)) {
3995 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3999 #ifndef OPENSSL_NO_ENGINE
4000 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
4001 # define eng_strx(x) #x
4002 # define eng_str(x) eng_strx(x)
4003 /* Use specific client engine automatically... ignore errors */
4006 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
4009 ENGINE_load_builtin_engines();
4010 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
4012 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
4018 #ifndef OPENSSL_NO_COMP_ALG
4020 * Set the default order: brotli, zlib, zstd
4021 * Including only those enabled algorithms
4023 memset(ret->cert_comp_prefs, 0, sizeof(ret->cert_comp_prefs));
4025 if (ossl_comp_has_alg(TLSEXT_comp_cert_brotli))
4026 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_brotli;
4027 if (ossl_comp_has_alg(TLSEXT_comp_cert_zlib))
4028 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zlib;
4029 if (ossl_comp_has_alg(TLSEXT_comp_cert_zstd))
4030 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zstd;
4033 * Disable compression by default to prevent CRIME. Applications can
4034 * re-enable compression by configuring
4035 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
4036 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
4037 * middlebox compatibility by default. This may be disabled by default in
4038 * a later OpenSSL version.
4040 ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
4042 ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
4045 * We cannot usefully set a default max_early_data here (which gets
4046 * propagated in SSL_new(), for the following reason: setting the
4047 * SSL field causes tls_construct_stoc_early_data() to tell the
4048 * client that early data will be accepted when constructing a TLS 1.3
4049 * session ticket, and the client will accordingly send us early data
4050 * when using that ticket (if the client has early data to send).
4051 * However, in order for the early data to actually be consumed by
4052 * the application, the application must also have calls to
4053 * SSL_read_early_data(); otherwise we'll just skip past the early data
4054 * and ignore it. So, since the application must add calls to
4055 * SSL_read_early_data(), we also require them to add
4056 * calls to SSL_CTX_set_max_early_data() in order to use early data,
4057 * eliminating the bandwidth-wasting early data in the case described
4060 ret->max_early_data = 0;
4063 * Default recv_max_early_data is a fully loaded single record. Could be
4064 * split across multiple records in practice. We set this differently to
4065 * max_early_data so that, in the default case, we do not advertise any
4066 * support for early_data, but if a client were to send us some (e.g.
4067 * because of an old, stale ticket) then we will tolerate it and skip over
4070 ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
4072 /* By default we send two session tickets automatically in TLSv1.3 */
4073 ret->num_tickets = 2;
4075 ssl_ctx_system_config(ret);
4083 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
4085 return SSL_CTX_new_ex(NULL, NULL, meth);
4088 int SSL_CTX_up_ref(SSL_CTX *ctx)
4092 if (CRYPTO_UP_REF(&ctx->references, &i) <= 0)
4095 REF_PRINT_COUNT("SSL_CTX", ctx);
4096 REF_ASSERT_ISNT(i < 2);
4097 return ((i > 1) ? 1 : 0);
4100 void SSL_CTX_free(SSL_CTX *a)
4108 CRYPTO_DOWN_REF(&a->references, &i);
4109 REF_PRINT_COUNT("SSL_CTX", a);
4112 REF_ASSERT_ISNT(i < 0);
4114 X509_VERIFY_PARAM_free(a->param);
4115 dane_ctx_final(&a->dane);
4118 * Free internal session cache. However: the remove_cb() may reference
4119 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
4120 * after the sessions were flushed.
4121 * As the ex_data handling routines might also touch the session cache,
4122 * the most secure solution seems to be: empty (flush) the cache, then
4123 * free ex_data, then finally free the cache.
4124 * (See ticket [openssl.org #212].)
4126 if (a->sessions != NULL)
4127 SSL_CTX_flush_sessions(a, 0);
4129 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
4130 lh_SSL_SESSION_free(a->sessions);
4131 X509_STORE_free(a->cert_store);
4132 #ifndef OPENSSL_NO_CT
4133 CTLOG_STORE_free(a->ctlog_store);
4135 sk_SSL_CIPHER_free(a->cipher_list);
4136 sk_SSL_CIPHER_free(a->cipher_list_by_id);
4137 sk_SSL_CIPHER_free(a->tls13_ciphersuites);
4138 ssl_cert_free(a->cert);
4139 sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
4140 sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
4141 OSSL_STACK_OF_X509_free(a->extra_certs);
4142 a->comp_methods = NULL;
4143 #ifndef OPENSSL_NO_SRTP
4144 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
4146 #ifndef OPENSSL_NO_SRP
4147 ssl_ctx_srp_ctx_free_intern(a);
4149 #ifndef OPENSSL_NO_ENGINE
4150 tls_engine_finish(a->client_cert_engine);
4153 OPENSSL_free(a->ext.ecpointformats);
4154 OPENSSL_free(a->ext.supportedgroups);
4155 OPENSSL_free(a->ext.supported_groups_default);
4156 OPENSSL_free(a->ext.alpn);
4157 OPENSSL_secure_free(a->ext.secure);
4159 ssl_evp_md_free(a->md5);
4160 ssl_evp_md_free(a->sha1);
4162 for (j = 0; j < SSL_ENC_NUM_IDX; j++)
4163 ssl_evp_cipher_free(a->ssl_cipher_methods[j]);
4164 for (j = 0; j < SSL_MD_NUM_IDX; j++)
4165 ssl_evp_md_free(a->ssl_digest_methods[j]);
4166 for (j = 0; j < a->group_list_len; j++) {
4167 OPENSSL_free(a->group_list[j].tlsname);
4168 OPENSSL_free(a->group_list[j].realname);
4169 OPENSSL_free(a->group_list[j].algorithm);
4171 OPENSSL_free(a->group_list);
4172 for (j = 0; j < a->sigalg_list_len; j++) {
4173 OPENSSL_free(a->sigalg_list[j].name);
4174 OPENSSL_free(a->sigalg_list[j].sigalg_name);
4175 OPENSSL_free(a->sigalg_list[j].sigalg_oid);
4176 OPENSSL_free(a->sigalg_list[j].sig_name);
4177 OPENSSL_free(a->sigalg_list[j].sig_oid);
4178 OPENSSL_free(a->sigalg_list[j].hash_name);
4179 OPENSSL_free(a->sigalg_list[j].hash_oid);
4180 OPENSSL_free(a->sigalg_list[j].keytype);
4181 OPENSSL_free(a->sigalg_list[j].keytype_oid);
4183 OPENSSL_free(a->sigalg_list);
4184 OPENSSL_free(a->ssl_cert_info);
4186 OPENSSL_free(a->sigalg_lookup_cache);
4187 OPENSSL_free(a->tls12_sigalgs);
4189 OPENSSL_free(a->client_cert_type);
4190 OPENSSL_free(a->server_cert_type);
4192 CRYPTO_THREAD_lock_free(a->lock);
4193 CRYPTO_FREE_REF(&a->references);
4194 #ifdef TSAN_REQUIRES_LOCKING
4195 CRYPTO_THREAD_lock_free(a->tsan_lock);
4198 OPENSSL_free(a->propq);
4203 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
4205 ctx->default_passwd_callback = cb;
4208 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
4210 ctx->default_passwd_callback_userdata = u;
4213 pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
4215 return ctx->default_passwd_callback;
4218 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
4220 return ctx->default_passwd_callback_userdata;
4223 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
4225 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4230 sc->default_passwd_callback = cb;
4233 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
4235 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4240 sc->default_passwd_callback_userdata = u;
4243 pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
4245 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4250 return sc->default_passwd_callback;
4253 void *SSL_get_default_passwd_cb_userdata(SSL *s)
4255 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4260 return sc->default_passwd_callback_userdata;
4263 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
4264 int (*cb) (X509_STORE_CTX *, void *),
4267 ctx->app_verify_callback = cb;
4268 ctx->app_verify_arg = arg;
4271 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
4272 int (*cb) (int, X509_STORE_CTX *))
4274 ctx->verify_mode = mode;
4275 ctx->default_verify_callback = cb;
4278 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
4280 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
4283 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
4285 ssl_cert_set_cert_cb(c->cert, cb, arg);
4288 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
4290 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4295 ssl_cert_set_cert_cb(sc->cert, cb, arg);
4298 void ssl_set_masks(SSL_CONNECTION *s)
4301 uint32_t *pvalid = s->s3.tmp.valid_flags;
4302 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
4303 unsigned long mask_k, mask_a;
4304 int have_ecc_cert, ecdsa_ok;
4309 dh_tmp = (c->dh_tmp != NULL
4310 || c->dh_tmp_cb != NULL
4313 rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4314 rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4315 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
4316 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
4320 OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
4321 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
4323 #ifndef OPENSSL_NO_GOST
4324 if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
4325 mask_k |= SSL_kGOST | SSL_kGOST18;
4326 mask_a |= SSL_aGOST12;
4328 if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
4329 mask_k |= SSL_kGOST | SSL_kGOST18;
4330 mask_a |= SSL_aGOST12;
4332 if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
4333 mask_k |= SSL_kGOST;
4334 mask_a |= SSL_aGOST01;
4345 * If we only have an RSA-PSS certificate allow RSA authentication
4346 * if TLS 1.2 and peer supports it.
4349 if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
4350 && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
4351 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION))
4358 mask_a |= SSL_aNULL;
4361 * You can do anything with an RPK key, since there's no cert to restrict it
4362 * But we need to check for private keys
4364 if (pvalid[SSL_PKEY_RSA] & CERT_PKEY_RPK) {
4368 if (pvalid[SSL_PKEY_ECC] & CERT_PKEY_RPK)
4369 mask_a |= SSL_aECDSA;
4370 if (TLS1_get_version(&s->ssl) == TLS1_2_VERSION) {
4371 if (pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_RPK)
4373 if (pvalid[SSL_PKEY_ED25519] & CERT_PKEY_RPK
4374 || pvalid[SSL_PKEY_ED448] & CERT_PKEY_RPK)
4375 mask_a |= SSL_aECDSA;
4379 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
4380 * depending on the key usage extension.
4382 if (have_ecc_cert) {
4384 ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
4385 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
4386 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
4389 mask_a |= SSL_aECDSA;
4391 /* Allow Ed25519 for TLS 1.2 if peer supports it */
4392 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
4393 && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
4394 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4395 mask_a |= SSL_aECDSA;
4397 /* Allow Ed448 for TLS 1.2 if peer supports it */
4398 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
4399 && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
4400 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4401 mask_a |= SSL_aECDSA;
4403 mask_k |= SSL_kECDHE;
4405 #ifndef OPENSSL_NO_PSK
4408 if (mask_k & SSL_kRSA)
4409 mask_k |= SSL_kRSAPSK;
4410 if (mask_k & SSL_kDHE)
4411 mask_k |= SSL_kDHEPSK;
4412 if (mask_k & SSL_kECDHE)
4413 mask_k |= SSL_kECDHEPSK;
4416 s->s3.tmp.mask_k = mask_k;
4417 s->s3.tmp.mask_a = mask_a;
4420 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CONNECTION *s)
4422 if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
4423 /* key usage, if present, must allow signing */
4424 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
4425 ERR_raise(ERR_LIB_SSL, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
4429 return 1; /* all checks are ok */
4432 int ssl_get_server_cert_serverinfo(SSL_CONNECTION *s,
4433 const unsigned char **serverinfo,
4434 size_t *serverinfo_length)
4436 CERT_PKEY *cpk = s->s3.tmp.cert;
4437 *serverinfo_length = 0;
4439 if (cpk == NULL || cpk->serverinfo == NULL)
4442 *serverinfo = cpk->serverinfo;
4443 *serverinfo_length = cpk->serverinfo_length;
4447 void ssl_update_cache(SSL_CONNECTION *s, int mode)
4452 * If the session_id_length is 0, we are not supposed to cache it, and it
4453 * would be rather hard to do anyway :-)
4455 if (s->session->session_id_length == 0)
4459 * If sid_ctx_length is 0 there is no specific application context
4460 * associated with this session, so when we try to resume it and
4461 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
4462 * indication that this is actually a session for the proper application
4463 * context, and the *handshake* will fail, not just the resumption attempt.
4464 * Do not cache (on the server) these sessions that are not resumable
4465 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
4467 if (s->server && s->session->sid_ctx_length == 0
4468 && (s->verify_mode & SSL_VERIFY_PEER) != 0)
4471 i = s->session_ctx->session_cache_mode;
4473 && (!s->hit || SSL_CONNECTION_IS_TLS13(s))) {
4475 * Add the session to the internal cache. In server side TLSv1.3 we
4476 * normally don't do this because by default it's a full stateless ticket
4477 * with only a dummy session id so there is no reason to cache it,
4479 * - we are doing early_data, in which case we cache so that we can
4481 * - the application has set a remove_session_cb so needs to know about
4482 * session timeout events
4483 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
4485 if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
4486 && (!SSL_CONNECTION_IS_TLS13(s)
4488 || (s->max_early_data > 0
4489 && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
4490 || s->session_ctx->remove_session_cb != NULL
4491 || (s->options & SSL_OP_NO_TICKET) != 0))
4492 SSL_CTX_add_session(s->session_ctx, s->session);
4495 * Add the session to the external cache. We do this even in server side
4496 * TLSv1.3 without early data because some applications just want to
4497 * know about the creation of a session and aren't doing a full cache.
4499 if (s->session_ctx->new_session_cb != NULL) {
4500 SSL_SESSION_up_ref(s->session);
4501 if (!s->session_ctx->new_session_cb(SSL_CONNECTION_GET_SSL(s),
4503 SSL_SESSION_free(s->session);
4507 /* auto flush every 255 connections */
4508 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
4509 TSAN_QUALIFIER int *stat;
4511 if (mode & SSL_SESS_CACHE_CLIENT)
4512 stat = &s->session_ctx->stats.sess_connect_good;
4514 stat = &s->session_ctx->stats.sess_accept_good;
4515 if ((ssl_tsan_load(s->session_ctx, stat) & 0xff) == 0xff)
4516 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
4520 const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
4525 const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
4530 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
4533 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4535 /* Not allowed for QUIC */
4537 || (s->type != SSL_TYPE_SSL_CONNECTION && s->method != meth)
4538 || (s->type == SSL_TYPE_SSL_CONNECTION && IS_QUIC_METHOD(meth)))
4541 if (s->method != meth) {
4542 const SSL_METHOD *sm = s->method;
4543 int (*hf) (SSL *) = sc->handshake_func;
4545 if (sm->version == meth->version)
4550 ret = s->method->ssl_init(s);
4553 if (hf == sm->ssl_connect)
4554 sc->handshake_func = meth->ssl_connect;
4555 else if (hf == sm->ssl_accept)
4556 sc->handshake_func = meth->ssl_accept;
4561 int SSL_get_error(const SSL *s, int i)
4566 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4569 return SSL_ERROR_NONE;
4571 #ifndef OPENSSL_NO_QUIC
4573 reason = ossl_quic_get_error(s, i);
4574 if (reason != SSL_ERROR_NONE)
4580 return SSL_ERROR_SSL;
4583 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
4584 * where we do encode the error
4586 if ((l = ERR_peek_error()) != 0) {
4587 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
4588 return SSL_ERROR_SYSCALL;
4590 return SSL_ERROR_SSL;
4593 #ifndef OPENSSL_NO_QUIC
4597 if (SSL_want_read(s)) {
4598 bio = SSL_get_rbio(s);
4599 if (BIO_should_read(bio))
4600 return SSL_ERROR_WANT_READ;
4601 else if (BIO_should_write(bio))
4603 * This one doesn't make too much sense ... We never try to
4604 * write to the rbio, and an application program where rbio and
4605 * wbio are separate couldn't even know what it should wait for.
4606 * However if we ever set s->rwstate incorrectly (so that we
4607 * have SSL_want_read(s) instead of SSL_want_write(s)) and rbio
4608 * and wbio *are* the same, this test works around that bug; so
4609 * it might be safer to keep it.
4611 return SSL_ERROR_WANT_WRITE;
4612 else if (BIO_should_io_special(bio)) {
4613 reason = BIO_get_retry_reason(bio);
4614 if (reason == BIO_RR_CONNECT)
4615 return SSL_ERROR_WANT_CONNECT;
4616 else if (reason == BIO_RR_ACCEPT)
4617 return SSL_ERROR_WANT_ACCEPT;
4619 return SSL_ERROR_SYSCALL; /* unknown */
4623 if (SSL_want_write(s)) {
4625 * Access wbio directly - in order to use the buffered bio if
4629 if (BIO_should_write(bio))
4630 return SSL_ERROR_WANT_WRITE;
4631 else if (BIO_should_read(bio))
4633 * See above (SSL_want_read(s) with BIO_should_write(bio))
4635 return SSL_ERROR_WANT_READ;
4636 else if (BIO_should_io_special(bio)) {
4637 reason = BIO_get_retry_reason(bio);
4638 if (reason == BIO_RR_CONNECT)
4639 return SSL_ERROR_WANT_CONNECT;
4640 else if (reason == BIO_RR_ACCEPT)
4641 return SSL_ERROR_WANT_ACCEPT;
4643 return SSL_ERROR_SYSCALL;
4648 if (SSL_want_x509_lookup(s))
4649 return SSL_ERROR_WANT_X509_LOOKUP;
4650 if (SSL_want_retry_verify(s))
4651 return SSL_ERROR_WANT_RETRY_VERIFY;
4652 if (SSL_want_async(s))
4653 return SSL_ERROR_WANT_ASYNC;
4654 if (SSL_want_async_job(s))
4655 return SSL_ERROR_WANT_ASYNC_JOB;
4656 if (SSL_want_client_hello_cb(s))
4657 return SSL_ERROR_WANT_CLIENT_HELLO_CB;
4659 if ((sc->shutdown & SSL_RECEIVED_SHUTDOWN) &&
4660 (sc->s3.warn_alert == SSL_AD_CLOSE_NOTIFY))
4661 return SSL_ERROR_ZERO_RETURN;
4663 return SSL_ERROR_SYSCALL;
4666 static int ssl_do_handshake_intern(void *vargs)
4668 struct ssl_async_args *args = (struct ssl_async_args *)vargs;
4670 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4675 return sc->handshake_func(s);
4678 int SSL_do_handshake(SSL *s)
4681 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4683 #ifndef OPENSSL_NO_QUIC
4685 return ossl_quic_do_handshake(s);
4688 if (sc->handshake_func == NULL) {
4689 ERR_raise(ERR_LIB_SSL, SSL_R_CONNECTION_TYPE_NOT_SET);
4693 ossl_statem_check_finish_init(sc, -1);
4695 s->method->ssl_renegotiate_check(s, 0);
4697 if (SSL_in_init(s) || SSL_in_before(s)) {
4698 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
4699 struct ssl_async_args args;
4701 memset(&args, 0, sizeof(args));
4704 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
4706 ret = sc->handshake_func(s);
4712 void SSL_set_accept_state(SSL *s)
4714 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4716 #ifndef OPENSSL_NO_QUIC
4718 ossl_quic_set_accept_state(s);
4725 ossl_statem_clear(sc);
4726 sc->handshake_func = s->method->ssl_accept;
4727 /* Ignore return value. Its a void public API function */
4728 clear_record_layer(sc);
4731 void SSL_set_connect_state(SSL *s)
4733 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4735 #ifndef OPENSSL_NO_QUIC
4737 ossl_quic_set_connect_state(s);
4744 ossl_statem_clear(sc);
4745 sc->handshake_func = s->method->ssl_connect;
4746 /* Ignore return value. Its a void public API function */
4747 clear_record_layer(sc);
4750 int ssl_undefined_function(SSL *s)
4752 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4756 int ssl_undefined_void_function(void)
4758 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4762 int ssl_undefined_const_function(const SSL *s)
4767 const SSL_METHOD *ssl_bad_method(int ver)
4769 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4773 const char *ssl_protocol_to_string(int version)
4777 case TLS1_3_VERSION:
4780 case TLS1_2_VERSION:
4783 case TLS1_1_VERSION:
4798 case DTLS1_2_VERSION:
4806 const char *SSL_get_version(const SSL *s)
4808 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4810 #ifndef OPENSSL_NO_QUIC
4811 /* We only support QUICv1 - so if its QUIC its QUICv1 */
4812 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
4819 return ssl_protocol_to_string(sc->version);
4822 __owur int SSL_get_handshake_rtt(const SSL *s, uint64_t *rtt)
4824 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4828 if (sc->ts_msg_write.t <= 0 || sc->ts_msg_read.t <= 0)
4829 return 0; /* data not (yet) available */
4830 if (sc->ts_msg_read.t < sc->ts_msg_write.t)
4833 *rtt = ossl_time2us(ossl_time_subtract(sc->ts_msg_read, sc->ts_msg_write));
4837 static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
4839 STACK_OF(X509_NAME) *sk;
4848 if ((sk = sk_X509_NAME_new_null()) == NULL)
4850 for (i = 0; i < sk_X509_NAME_num(src); i++) {
4851 xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
4853 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4856 if (sk_X509_NAME_insert(sk, xn, i) == 0) {
4858 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4867 SSL *SSL_dup(SSL *s)
4871 /* TODO(QUIC): Add a SSL_METHOD function for duplication */
4872 SSL_CONNECTION *retsc;
4873 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4878 /* If we're not quiescent, just up_ref! */
4879 if (!SSL_in_init(s) || !SSL_in_before(s)) {
4880 CRYPTO_UP_REF(&s->references, &i);
4885 * Otherwise, copy configuration state, and session if set.
4887 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
4889 if ((retsc = SSL_CONNECTION_FROM_SSL_ONLY(ret)) == NULL)
4892 if (sc->session != NULL) {
4894 * Arranges to share the same session via up_ref. This "copies"
4895 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4897 if (!SSL_copy_session_id(ret, s))
4901 * No session has been established yet, so we have to expect that
4902 * s->cert or ret->cert will be changed later -- they should not both
4903 * point to the same object, and thus we can't use
4904 * SSL_copy_session_id.
4906 if (!SSL_set_ssl_method(ret, s->method))
4909 if (sc->cert != NULL) {
4910 ssl_cert_free(retsc->cert);
4911 retsc->cert = ssl_cert_dup(sc->cert);
4912 if (retsc->cert == NULL)
4916 if (!SSL_set_session_id_context(ret, sc->sid_ctx,
4917 (int)sc->sid_ctx_length))
4921 if (!ssl_dane_dup(retsc, sc))
4923 retsc->version = sc->version;
4924 retsc->options = sc->options;
4925 retsc->min_proto_version = sc->min_proto_version;
4926 retsc->max_proto_version = sc->max_proto_version;
4927 retsc->mode = sc->mode;
4928 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
4929 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
4930 retsc->msg_callback = sc->msg_callback;
4931 retsc->msg_callback_arg = sc->msg_callback_arg;
4932 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
4933 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
4934 retsc->generate_session_id = sc->generate_session_id;
4936 SSL_set_info_callback(ret, SSL_get_info_callback(s));
4938 /* copy app data, a little dangerous perhaps */
4939 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
4942 retsc->server = sc->server;
4943 if (sc->handshake_func) {
4945 SSL_set_accept_state(ret);
4947 SSL_set_connect_state(ret);
4949 retsc->shutdown = sc->shutdown;
4950 retsc->hit = sc->hit;
4952 retsc->default_passwd_callback = sc->default_passwd_callback;
4953 retsc->default_passwd_callback_userdata = sc->default_passwd_callback_userdata;
4955 X509_VERIFY_PARAM_inherit(retsc->param, sc->param);
4957 /* dup the cipher_list and cipher_list_by_id stacks */
4958 if (sc->cipher_list != NULL) {
4959 if ((retsc->cipher_list = sk_SSL_CIPHER_dup(sc->cipher_list)) == NULL)
4962 if (sc->cipher_list_by_id != NULL)
4963 if ((retsc->cipher_list_by_id = sk_SSL_CIPHER_dup(sc->cipher_list_by_id))
4967 /* Dup the client_CA list */
4968 if (!dup_ca_names(&retsc->ca_names, sc->ca_names)
4969 || !dup_ca_names(&retsc->client_ca_names, sc->client_ca_names))
4979 X509 *SSL_get_certificate(const SSL *s)
4981 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4986 if (sc->cert != NULL)
4987 return sc->cert->key->x509;
4992 EVP_PKEY *SSL_get_privatekey(const SSL *s)
4994 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4999 if (sc->cert != NULL)
5000 return sc->cert->key->privatekey;
5005 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
5007 if (ctx->cert != NULL)
5008 return ctx->cert->key->x509;
5013 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
5015 if (ctx->cert != NULL)
5016 return ctx->cert->key->privatekey;
5021 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
5023 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5028 if ((sc->session != NULL) && (sc->session->cipher != NULL))
5029 return sc->session->cipher;
5033 const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
5035 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5040 return sc->s3.tmp.new_cipher;
5043 const COMP_METHOD *SSL_get_current_compression(const SSL *s)
5045 #ifndef OPENSSL_NO_COMP
5046 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5051 return sc->rlayer.wrlmethod->get_compression(sc->rlayer.wrl);
5057 const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
5059 #ifndef OPENSSL_NO_COMP
5060 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5065 return sc->rlayer.rrlmethod->get_compression(sc->rlayer.rrl);
5071 int ssl_init_wbio_buffer(SSL_CONNECTION *s)
5075 if (s->bbio != NULL) {
5076 /* Already buffered. */
5080 bbio = BIO_new(BIO_f_buffer());
5081 if (bbio == NULL || BIO_set_read_buffer_size(bbio, 1) <= 0) {
5083 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
5087 s->wbio = BIO_push(bbio, s->wbio);
5089 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5094 int ssl_free_wbio_buffer(SSL_CONNECTION *s)
5096 /* callers ensure s is never null */
5097 if (s->bbio == NULL)
5100 s->wbio = BIO_pop(s->wbio);
5101 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5109 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
5111 ctx->quiet_shutdown = mode;
5114 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
5116 return ctx->quiet_shutdown;
5119 void SSL_set_quiet_shutdown(SSL *s, int mode)
5121 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5123 /* TODO(QUIC): Currently not supported for QUIC. */
5127 sc->quiet_shutdown = mode;
5130 int SSL_get_quiet_shutdown(const SSL *s)
5132 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5134 /* TODO(QUIC): Currently not supported for QUIC. */
5138 return sc->quiet_shutdown;
5141 void SSL_set_shutdown(SSL *s, int mode)
5143 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5145 /* TODO(QUIC): Do we want this for QUIC? */
5149 sc->shutdown = mode;
5152 int SSL_get_shutdown(const SSL *s)
5154 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5156 /* TODO(QUIC): Do we want this for QUIC? */
5160 return sc->shutdown;
5163 int SSL_version(const SSL *s)
5165 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5167 #ifndef OPENSSL_NO_QUIC
5168 /* We only support QUICv1 - so if its QUIC its QUICv1 */
5169 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
5170 return OSSL_QUIC1_VERSION;
5172 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
5179 int SSL_client_version(const SSL *s)
5181 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5183 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
5187 return sc->client_version;
5190 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
5195 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
5198 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
5200 /* TODO(QUIC): Do we need this for QUIC support? */
5204 if (ssl->ctx == ctx)
5207 ctx = sc->session_ctx;
5208 new_cert = ssl_cert_dup(ctx->cert);
5209 if (new_cert == NULL) {
5213 if (!custom_exts_copy_flags(&new_cert->custext, &sc->cert->custext)) {
5214 ssl_cert_free(new_cert);
5218 ssl_cert_free(sc->cert);
5219 sc->cert = new_cert;
5222 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
5223 * so setter APIs must prevent invalid lengths from entering the system.
5225 if (!ossl_assert(sc->sid_ctx_length <= sizeof(sc->sid_ctx)))
5229 * If the session ID context matches that of the parent SSL_CTX,
5230 * inherit it from the new SSL_CTX as well. If however the context does
5231 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
5232 * leave it unchanged.
5234 if ((ssl->ctx != NULL) &&
5235 (sc->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
5236 (memcmp(sc->sid_ctx, ssl->ctx->sid_ctx, sc->sid_ctx_length) == 0)) {
5237 sc->sid_ctx_length = ctx->sid_ctx_length;
5238 memcpy(&sc->sid_ctx, &ctx->sid_ctx, sizeof(sc->sid_ctx));
5241 SSL_CTX_up_ref(ctx);
5242 SSL_CTX_free(ssl->ctx); /* decrement reference count */
5248 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
5250 return X509_STORE_set_default_paths_ex(ctx->cert_store, ctx->libctx,
5254 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
5256 X509_LOOKUP *lookup;
5258 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
5262 /* We ignore errors, in case the directory doesn't exist */
5265 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
5272 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
5274 X509_LOOKUP *lookup;
5276 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
5280 /* We ignore errors, in case the file doesn't exist */
5283 X509_LOOKUP_load_file_ex(lookup, NULL, X509_FILETYPE_DEFAULT, ctx->libctx,
5291 int SSL_CTX_set_default_verify_store(SSL_CTX *ctx)
5293 X509_LOOKUP *lookup;
5295 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_store());
5299 /* We ignore errors, in case the directory doesn't exist */
5302 X509_LOOKUP_add_store_ex(lookup, NULL, ctx->libctx, ctx->propq);
5309 int SSL_CTX_load_verify_file(SSL_CTX *ctx, const char *CAfile)
5311 return X509_STORE_load_file_ex(ctx->cert_store, CAfile, ctx->libctx,
5315 int SSL_CTX_load_verify_dir(SSL_CTX *ctx, const char *CApath)
5317 return X509_STORE_load_path(ctx->cert_store, CApath);
5320 int SSL_CTX_load_verify_store(SSL_CTX *ctx, const char *CAstore)
5322 return X509_STORE_load_store_ex(ctx->cert_store, CAstore, ctx->libctx,
5326 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
5329 if (CAfile == NULL && CApath == NULL)
5331 if (CAfile != NULL && !SSL_CTX_load_verify_file(ctx, CAfile))
5333 if (CApath != NULL && !SSL_CTX_load_verify_dir(ctx, CApath))
5338 void SSL_set_info_callback(SSL *ssl,
5339 void (*cb) (const SSL *ssl, int type, int val))
5341 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5346 sc->info_callback = cb;
5350 * One compiler (Diab DCC) doesn't like argument names in returned function
5353 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
5356 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5361 return sc->info_callback;
5364 void SSL_set_verify_result(SSL *ssl, long arg)
5366 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5371 sc->verify_result = arg;
5374 long SSL_get_verify_result(const SSL *ssl)
5376 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5381 return sc->verify_result;
5384 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
5386 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5392 return sizeof(sc->s3.client_random);
5393 if (outlen > sizeof(sc->s3.client_random))
5394 outlen = sizeof(sc->s3.client_random);
5395 memcpy(out, sc->s3.client_random, outlen);
5399 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
5401 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5407 return sizeof(sc->s3.server_random);
5408 if (outlen > sizeof(sc->s3.server_random))
5409 outlen = sizeof(sc->s3.server_random);
5410 memcpy(out, sc->s3.server_random, outlen);
5414 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
5415 unsigned char *out, size_t outlen)
5418 return session->master_key_length;
5419 if (outlen > session->master_key_length)
5420 outlen = session->master_key_length;
5421 memcpy(out, session->master_key, outlen);
5425 int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
5428 if (len > sizeof(sess->master_key))
5431 memcpy(sess->master_key, in, len);
5432 sess->master_key_length = len;
5437 int SSL_set_ex_data(SSL *s, int idx, void *arg)
5439 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5442 void *SSL_get_ex_data(const SSL *s, int idx)
5444 return CRYPTO_get_ex_data(&s->ex_data, idx);
5447 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
5449 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5452 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
5454 return CRYPTO_get_ex_data(&s->ex_data, idx);
5457 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
5459 return ctx->cert_store;
5462 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
5464 X509_STORE_free(ctx->cert_store);
5465 ctx->cert_store = store;
5468 void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
5471 X509_STORE_up_ref(store);
5472 SSL_CTX_set_cert_store(ctx, store);
5475 int SSL_want(const SSL *s)
5477 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5485 #ifndef OPENSSL_NO_PSK
5486 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
5488 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5489 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5492 OPENSSL_free(ctx->cert->psk_identity_hint);
5493 if (identity_hint != NULL) {
5494 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5495 if (ctx->cert->psk_identity_hint == NULL)
5498 ctx->cert->psk_identity_hint = NULL;
5502 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
5504 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5509 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5510 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5513 OPENSSL_free(sc->cert->psk_identity_hint);
5514 if (identity_hint != NULL) {
5515 sc->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5516 if (sc->cert->psk_identity_hint == NULL)
5519 sc->cert->psk_identity_hint = NULL;
5523 const char *SSL_get_psk_identity_hint(const SSL *s)
5525 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5527 if (sc == NULL || sc->session == NULL)
5530 return sc->session->psk_identity_hint;
5533 const char *SSL_get_psk_identity(const SSL *s)
5535 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5537 if (sc == NULL || sc->session == NULL)
5540 return sc->session->psk_identity;
5543 void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
5545 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5550 sc->psk_client_callback = cb;
5553 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
5555 ctx->psk_client_callback = cb;
5558 void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
5560 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5565 sc->psk_server_callback = cb;
5568 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
5570 ctx->psk_server_callback = cb;
5574 void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
5576 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5581 sc->psk_find_session_cb = cb;
5584 void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
5585 SSL_psk_find_session_cb_func cb)
5587 ctx->psk_find_session_cb = cb;
5590 void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
5592 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5597 sc->psk_use_session_cb = cb;
5600 void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
5601 SSL_psk_use_session_cb_func cb)
5603 ctx->psk_use_session_cb = cb;
5606 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
5607 void (*cb) (int write_p, int version,
5608 int content_type, const void *buf,
5609 size_t len, SSL *ssl, void *arg))
5611 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5614 void SSL_set_msg_callback(SSL *ssl,
5615 void (*cb) (int write_p, int version,
5616 int content_type, const void *buf,
5617 size_t len, SSL *ssl, void *arg))
5619 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5622 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
5623 int (*cb) (SSL *ssl,
5627 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5628 (void (*)(void))cb);
5631 void SSL_set_not_resumable_session_callback(SSL *ssl,
5632 int (*cb) (SSL *ssl,
5633 int is_forward_secure))
5635 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5636 (void (*)(void))cb);
5639 void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
5640 size_t (*cb) (SSL *ssl, int type,
5641 size_t len, void *arg))
5643 ctx->record_padding_cb = cb;
5646 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
5648 ctx->record_padding_arg = arg;
5651 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
5653 return ctx->record_padding_arg;
5656 int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
5658 if (IS_QUIC_CTX(ctx) && block_size > 1)
5661 /* block size of 0 or 1 is basically no padding */
5662 if (block_size == 1)
5663 ctx->block_padding = 0;
5664 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5665 ctx->block_padding = block_size;
5671 int SSL_set_record_padding_callback(SSL *ssl,
5672 size_t (*cb) (SSL *ssl, int type,
5673 size_t len, void *arg))
5676 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
5681 b = SSL_get_wbio(ssl);
5682 if (b == NULL || !BIO_get_ktls_send(b)) {
5683 sc->rlayer.record_padding_cb = cb;
5689 void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
5691 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5696 sc->rlayer.record_padding_arg = arg;
5699 void *SSL_get_record_padding_callback_arg(const SSL *ssl)
5701 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5706 return sc->rlayer.record_padding_arg;
5709 int SSL_set_block_padding(SSL *ssl, size_t block_size)
5711 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5713 if (sc == NULL || (IS_QUIC(ssl) && block_size > 1))
5716 /* block size of 0 or 1 is basically no padding */
5717 if (block_size == 1)
5718 sc->rlayer.block_padding = 0;
5719 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5720 sc->rlayer.block_padding = block_size;
5726 int SSL_set_num_tickets(SSL *s, size_t num_tickets)
5728 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5733 sc->num_tickets = num_tickets;
5738 size_t SSL_get_num_tickets(const SSL *s)
5740 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5745 return sc->num_tickets;
5748 int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
5750 ctx->num_tickets = num_tickets;
5755 size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
5757 return ctx->num_tickets;
5760 /* Retrieve handshake hashes */
5761 int ssl_handshake_hash(SSL_CONNECTION *s,
5762 unsigned char *out, size_t outlen,
5765 EVP_MD_CTX *ctx = NULL;
5766 EVP_MD_CTX *hdgst = s->s3.handshake_dgst;
5767 int hashleni = EVP_MD_CTX_get_size(hdgst);
5770 if (hashleni < 0 || (size_t)hashleni > outlen) {
5771 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5775 ctx = EVP_MD_CTX_new();
5777 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5781 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
5782 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
5783 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5787 *hashlen = hashleni;
5791 EVP_MD_CTX_free(ctx);
5795 int SSL_session_reused(const SSL *s)
5797 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5805 int SSL_is_server(const SSL *s)
5807 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5815 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
5816 void SSL_set_debug(SSL *s, int debug)
5818 /* Old function was do-nothing anyway... */
5824 void SSL_set_security_level(SSL *s, int level)
5826 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5831 sc->cert->sec_level = level;
5834 int SSL_get_security_level(const SSL *s)
5836 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5841 return sc->cert->sec_level;
5844 void SSL_set_security_callback(SSL *s,
5845 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5846 int op, int bits, int nid,
5847 void *other, void *ex))
5849 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5854 sc->cert->sec_cb = cb;
5857 int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
5858 const SSL_CTX *ctx, int op,
5859 int bits, int nid, void *other,
5861 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5866 return sc->cert->sec_cb;
5869 void SSL_set0_security_ex_data(SSL *s, void *ex)
5871 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5876 sc->cert->sec_ex = ex;
5879 void *SSL_get0_security_ex_data(const SSL *s)
5881 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5886 return sc->cert->sec_ex;
5889 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
5891 ctx->cert->sec_level = level;
5894 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
5896 return ctx->cert->sec_level;
5899 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
5900 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5901 int op, int bits, int nid,
5902 void *other, void *ex))
5904 ctx->cert->sec_cb = cb;
5907 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
5913 return ctx->cert->sec_cb;
5916 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
5918 ctx->cert->sec_ex = ex;
5921 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
5923 return ctx->cert->sec_ex;
5926 uint64_t SSL_CTX_get_options(const SSL_CTX *ctx)
5928 return ctx->options;
5931 uint64_t SSL_get_options(const SSL *s)
5933 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5935 #ifndef OPENSSL_NO_QUIC
5937 return ossl_quic_get_options(s);
5946 uint64_t SSL_CTX_set_options(SSL_CTX *ctx, uint64_t op)
5948 return ctx->options |= op;
5951 uint64_t SSL_set_options(SSL *s, uint64_t op)
5954 OSSL_PARAM options[2], *opts = options;
5956 #ifndef OPENSSL_NO_QUIC
5958 return ossl_quic_set_options(s, op);
5961 sc = SSL_CONNECTION_FROM_SSL(s);
5967 *opts++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS,
5969 *opts = OSSL_PARAM_construct_end();
5971 /* Ignore return value */
5972 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
5977 uint64_t SSL_CTX_clear_options(SSL_CTX *ctx, uint64_t op)
5979 return ctx->options &= ~op;
5982 uint64_t SSL_clear_options(SSL *s, uint64_t op)
5984 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5986 #ifndef OPENSSL_NO_QUIC
5988 return ossl_quic_clear_options(s, op);
5994 return sc->options &= ~op;
5997 STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
5999 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6004 return sc->verified_chain;
6007 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
6009 #ifndef OPENSSL_NO_CT
6012 * Moves SCTs from the |src| stack to the |dst| stack.
6013 * The source of each SCT will be set to |origin|.
6014 * If |dst| points to a NULL pointer, a new stack will be created and owned by
6016 * Returns the number of SCTs moved, or a negative integer if an error occurs.
6018 static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
6019 sct_source_t origin)
6025 *dst = sk_SCT_new_null();
6027 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6032 while ((sct = sk_SCT_pop(src)) != NULL) {
6033 if (SCT_set_source(sct, origin) != 1)
6036 if (sk_SCT_push(*dst, sct) <= 0)
6044 sk_SCT_push(src, sct); /* Put the SCT back */
6049 * Look for data collected during ServerHello and parse if found.
6050 * Returns the number of SCTs extracted.
6052 static int ct_extract_tls_extension_scts(SSL_CONNECTION *s)
6054 int scts_extracted = 0;
6056 if (s->ext.scts != NULL) {
6057 const unsigned char *p = s->ext.scts;
6058 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
6060 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
6062 SCT_LIST_free(scts);
6065 return scts_extracted;
6069 * Checks for an OCSP response and then attempts to extract any SCTs found if it
6070 * contains an SCT X509 extension. They will be stored in |s->scts|.
6072 * - The number of SCTs extracted, assuming an OCSP response exists.
6073 * - 0 if no OCSP response exists or it contains no SCTs.
6074 * - A negative integer if an error occurs.
6076 static int ct_extract_ocsp_response_scts(SSL_CONNECTION *s)
6078 # ifndef OPENSSL_NO_OCSP
6079 int scts_extracted = 0;
6080 const unsigned char *p;
6081 OCSP_BASICRESP *br = NULL;
6082 OCSP_RESPONSE *rsp = NULL;
6083 STACK_OF(SCT) *scts = NULL;
6086 if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
6089 p = s->ext.ocsp.resp;
6090 rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
6094 br = OCSP_response_get1_basic(rsp);
6098 for (i = 0; i < OCSP_resp_count(br); ++i) {
6099 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
6105 OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
6107 ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
6108 if (scts_extracted < 0)
6112 SCT_LIST_free(scts);
6113 OCSP_BASICRESP_free(br);
6114 OCSP_RESPONSE_free(rsp);
6115 return scts_extracted;
6117 /* Behave as if no OCSP response exists */
6123 * Attempts to extract SCTs from the peer certificate.
6124 * Return the number of SCTs extracted, or a negative integer if an error
6127 static int ct_extract_x509v3_extension_scts(SSL_CONNECTION *s)
6129 int scts_extracted = 0;
6130 X509 *cert = s->session != NULL ? s->session->peer : NULL;
6133 STACK_OF(SCT) *scts =
6134 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
6137 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
6139 SCT_LIST_free(scts);
6142 return scts_extracted;
6146 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
6147 * response (if it exists) and X509v3 extensions in the certificate.
6148 * Returns NULL if an error occurs.
6150 const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
6152 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6157 if (!sc->scts_parsed) {
6158 if (ct_extract_tls_extension_scts(sc) < 0 ||
6159 ct_extract_ocsp_response_scts(sc) < 0 ||
6160 ct_extract_x509v3_extension_scts(sc) < 0)
6163 sc->scts_parsed = 1;
6170 static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx,
6171 const STACK_OF(SCT) *scts, void *unused_arg)
6176 static int ct_strict(const CT_POLICY_EVAL_CTX * ctx,
6177 const STACK_OF(SCT) *scts, void *unused_arg)
6179 int count = scts != NULL ? sk_SCT_num(scts) : 0;
6182 for (i = 0; i < count; ++i) {
6183 SCT *sct = sk_SCT_value(scts, i);
6184 int status = SCT_get_validation_status(sct);
6186 if (status == SCT_VALIDATION_STATUS_VALID)
6189 ERR_raise(ERR_LIB_SSL, SSL_R_NO_VALID_SCTS);
6193 int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
6196 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6202 * Since code exists that uses the custom extension handler for CT, look
6203 * for this and throw an error if they have already registered to use CT.
6205 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
6206 TLSEXT_TYPE_signed_certificate_timestamp))
6208 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
6212 if (callback != NULL) {
6214 * If we are validating CT, then we MUST accept SCTs served via OCSP
6216 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
6220 sc->ct_validation_callback = callback;
6221 sc->ct_validation_callback_arg = arg;
6226 int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
6227 ssl_ct_validation_cb callback, void *arg)
6230 * Since code exists that uses the custom extension handler for CT, look for
6231 * this and throw an error if they have already registered to use CT.
6233 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
6234 TLSEXT_TYPE_signed_certificate_timestamp))
6236 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
6240 ctx->ct_validation_callback = callback;
6241 ctx->ct_validation_callback_arg = arg;
6245 int SSL_ct_is_enabled(const SSL *s)
6247 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6252 return sc->ct_validation_callback != NULL;
6255 int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
6257 return ctx->ct_validation_callback != NULL;
6260 int ssl_validate_ct(SSL_CONNECTION *s)
6263 X509 *cert = s->session != NULL ? s->session->peer : NULL;
6265 SSL_DANE *dane = &s->dane;
6266 CT_POLICY_EVAL_CTX *ctx = NULL;
6267 const STACK_OF(SCT) *scts;
6270 * If no callback is set, the peer is anonymous, or its chain is invalid,
6271 * skip SCT validation - just return success. Applications that continue
6272 * handshakes without certificates, with unverified chains, or pinned leaf
6273 * certificates are outside the scope of the WebPKI and CT.
6275 * The above exclusions notwithstanding the vast majority of peers will
6276 * have rather ordinary certificate chains validated by typical
6277 * applications that perform certificate verification and therefore will
6278 * process SCTs when enabled.
6280 if (s->ct_validation_callback == NULL || cert == NULL ||
6281 s->verify_result != X509_V_OK ||
6282 s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
6286 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
6287 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
6289 if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
6290 switch (dane->mtlsa->usage) {
6291 case DANETLS_USAGE_DANE_TA:
6292 case DANETLS_USAGE_DANE_EE:
6297 ctx = CT_POLICY_EVAL_CTX_new_ex(SSL_CONNECTION_GET_CTX(s)->libctx,
6298 SSL_CONNECTION_GET_CTX(s)->propq);
6300 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CT_LIB);
6304 issuer = sk_X509_value(s->verified_chain, 1);
6305 CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
6306 CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
6307 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx,
6308 SSL_CONNECTION_GET_CTX(s)->ctlog_store);
6309 CT_POLICY_EVAL_CTX_set_time(
6310 ctx, (uint64_t)SSL_SESSION_get_time(s->session) * 1000);
6312 scts = SSL_get0_peer_scts(SSL_CONNECTION_GET_SSL(s));
6315 * This function returns success (> 0) only when all the SCTs are valid, 0
6316 * when some are invalid, and < 0 on various internal errors (out of
6317 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
6318 * reason to abort the handshake, that decision is up to the callback.
6319 * Therefore, we error out only in the unexpected case that the return
6320 * value is negative.
6322 * XXX: One might well argue that the return value of this function is an
6323 * unfortunate design choice. Its job is only to determine the validation
6324 * status of each of the provided SCTs. So long as it correctly separates
6325 * the wheat from the chaff it should return success. Failure in this case
6326 * ought to correspond to an inability to carry out its duties.
6328 if (SCT_LIST_validate(scts, ctx) < 0) {
6329 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_SCT_VERIFICATION_FAILED);
6333 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
6335 ret = 0; /* This function returns 0 on failure */
6337 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_CALLBACK_FAILED);
6340 CT_POLICY_EVAL_CTX_free(ctx);
6342 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
6343 * failure return code here. Also the application may wish the complete
6344 * the handshake, and then disconnect cleanly at a higher layer, after
6345 * checking the verification status of the completed connection.
6347 * We therefore force a certificate verification failure which will be
6348 * visible via SSL_get_verify_result() and cached as part of any resumed
6351 * Note: the permissive callback is for information gathering only, always
6352 * returns success, and does not affect verification status. Only the
6353 * strict callback or a custom application-specified callback can trigger
6354 * connection failure or record a verification error.
6357 s->verify_result = X509_V_ERR_NO_VALID_SCTS;
6361 int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
6363 switch (validation_mode) {
6365 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6367 case SSL_CT_VALIDATION_PERMISSIVE:
6368 return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
6369 case SSL_CT_VALIDATION_STRICT:
6370 return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
6374 int SSL_enable_ct(SSL *s, int validation_mode)
6376 switch (validation_mode) {
6378 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6380 case SSL_CT_VALIDATION_PERMISSIVE:
6381 return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
6382 case SSL_CT_VALIDATION_STRICT:
6383 return SSL_set_ct_validation_callback(s, ct_strict, NULL);
6387 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
6389 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
6392 int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
6394 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
6397 void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs)
6399 CTLOG_STORE_free(ctx->ctlog_store);
6400 ctx->ctlog_store = logs;
6403 const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
6405 return ctx->ctlog_store;
6408 #endif /* OPENSSL_NO_CT */
6410 void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
6413 c->client_hello_cb = cb;
6414 c->client_hello_cb_arg = arg;
6417 int SSL_client_hello_isv2(SSL *s)
6419 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6424 if (sc->clienthello == NULL)
6426 return sc->clienthello->isv2;
6429 unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
6431 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6436 if (sc->clienthello == NULL)
6438 return sc->clienthello->legacy_version;
6441 size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out)
6443 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6448 if (sc->clienthello == NULL)
6451 *out = sc->clienthello->random;
6452 return SSL3_RANDOM_SIZE;
6455 size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
6457 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6462 if (sc->clienthello == NULL)
6465 *out = sc->clienthello->session_id;
6466 return sc->clienthello->session_id_len;
6469 size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
6471 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6476 if (sc->clienthello == NULL)
6479 *out = PACKET_data(&sc->clienthello->ciphersuites);
6480 return PACKET_remaining(&sc->clienthello->ciphersuites);
6483 size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
6485 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6490 if (sc->clienthello == NULL)
6493 *out = sc->clienthello->compressions;
6494 return sc->clienthello->compressions_len;
6497 int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
6502 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6507 if (sc->clienthello == NULL || out == NULL || outlen == NULL)
6509 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6510 ext = sc->clienthello->pre_proc_exts + i;
6519 if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL)
6521 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6522 ext = sc->clienthello->pre_proc_exts + i;
6524 if (ext->received_order >= num)
6526 present[ext->received_order] = ext->type;
6533 OPENSSL_free(present);
6537 int SSL_client_hello_get_extension_order(SSL *s, uint16_t *exts, size_t *num_exts)
6541 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6546 if (sc->clienthello == NULL || num_exts == NULL)
6548 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6549 ext = sc->clienthello->pre_proc_exts + i;
6561 if (*num_exts < num)
6563 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6564 ext = sc->clienthello->pre_proc_exts + i;
6566 if (ext->received_order >= num)
6568 exts[ext->received_order] = ext->type;
6575 int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
6580 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6585 if (sc->clienthello == NULL)
6587 for (i = 0; i < sc->clienthello->pre_proc_exts_len; ++i) {
6588 r = sc->clienthello->pre_proc_exts + i;
6589 if (r->present && r->type == type) {
6591 *out = PACKET_data(&r->data);
6593 *outlen = PACKET_remaining(&r->data);
6600 int SSL_free_buffers(SSL *ssl)
6603 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
6610 return rl->rrlmethod->free_buffers(rl->rrl)
6611 && rl->wrlmethod->free_buffers(rl->wrl);
6614 int SSL_alloc_buffers(SSL *ssl)
6617 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6622 /* QUIC always has buffers allocated. */
6628 return rl->rrlmethod->alloc_buffers(rl->rrl)
6629 && rl->wrlmethod->alloc_buffers(rl->wrl);
6632 void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
6634 ctx->keylog_callback = cb;
6637 SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
6639 return ctx->keylog_callback;
6642 static int nss_keylog_int(const char *prefix,
6644 const uint8_t *parameter_1,
6645 size_t parameter_1_len,
6646 const uint8_t *parameter_2,
6647 size_t parameter_2_len)
6650 char *cursor = NULL;
6654 SSL_CTX *sctx = SSL_CONNECTION_GET_CTX(sc);
6656 if (sctx->keylog_callback == NULL)
6660 * Our output buffer will contain the following strings, rendered with
6661 * space characters in between, terminated by a NULL character: first the
6662 * prefix, then the first parameter, then the second parameter. The
6663 * meaning of each parameter depends on the specific key material being
6664 * logged. Note that the first and second parameters are encoded in
6665 * hexadecimal, so we need a buffer that is twice their lengths.
6667 prefix_len = strlen(prefix);
6668 out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
6669 if ((out = cursor = OPENSSL_malloc(out_len)) == NULL)
6672 strcpy(cursor, prefix);
6673 cursor += prefix_len;
6676 for (i = 0; i < parameter_1_len; i++) {
6677 sprintf(cursor, "%02x", parameter_1[i]);
6682 for (i = 0; i < parameter_2_len; i++) {
6683 sprintf(cursor, "%02x", parameter_2[i]);
6688 sctx->keylog_callback(SSL_CONNECTION_GET_SSL(sc), (const char *)out);
6689 OPENSSL_clear_free(out, out_len);
6694 int ssl_log_rsa_client_key_exchange(SSL_CONNECTION *sc,
6695 const uint8_t *encrypted_premaster,
6696 size_t encrypted_premaster_len,
6697 const uint8_t *premaster,
6698 size_t premaster_len)
6700 if (encrypted_premaster_len < 8) {
6701 SSLfatal(sc, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6705 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
6706 return nss_keylog_int("RSA",
6708 encrypted_premaster,
6714 int ssl_log_secret(SSL_CONNECTION *sc,
6716 const uint8_t *secret,
6719 return nss_keylog_int(label,
6721 sc->s3.client_random,
6727 #define SSLV2_CIPHER_LEN 3
6729 int ssl_cache_cipherlist(SSL_CONNECTION *s, PACKET *cipher_suites, int sslv2format)
6733 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6735 if (PACKET_remaining(cipher_suites) == 0) {
6736 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6740 if (PACKET_remaining(cipher_suites) % n != 0) {
6741 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6745 OPENSSL_free(s->s3.tmp.ciphers_raw);
6746 s->s3.tmp.ciphers_raw = NULL;
6747 s->s3.tmp.ciphers_rawlen = 0;
6750 size_t numciphers = PACKET_remaining(cipher_suites) / n;
6751 PACKET sslv2ciphers = *cipher_suites;
6752 unsigned int leadbyte;
6756 * We store the raw ciphers list in SSLv3+ format so we need to do some
6757 * preprocessing to convert the list first. If there are any SSLv2 only
6758 * ciphersuites with a non-zero leading byte then we are going to
6759 * slightly over allocate because we won't store those. But that isn't a
6762 raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
6763 s->s3.tmp.ciphers_raw = raw;
6765 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6768 for (s->s3.tmp.ciphers_rawlen = 0;
6769 PACKET_remaining(&sslv2ciphers) > 0;
6770 raw += TLS_CIPHER_LEN) {
6771 if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
6773 && !PACKET_copy_bytes(&sslv2ciphers, raw,
6776 && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
6777 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_PACKET);
6778 OPENSSL_free(s->s3.tmp.ciphers_raw);
6779 s->s3.tmp.ciphers_raw = NULL;
6780 s->s3.tmp.ciphers_rawlen = 0;
6784 s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN;
6786 } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw,
6787 &s->s3.tmp.ciphers_rawlen)) {
6788 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6794 int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
6795 int isv2format, STACK_OF(SSL_CIPHER) **sk,
6796 STACK_OF(SSL_CIPHER) **scsvs)
6799 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6804 if (!PACKET_buf_init(&pkt, bytes, len))
6806 return ossl_bytes_to_cipher_list(sc, &pkt, sk, scsvs, isv2format, 0);
6809 int ossl_bytes_to_cipher_list(SSL_CONNECTION *s, PACKET *cipher_suites,
6810 STACK_OF(SSL_CIPHER) **skp,
6811 STACK_OF(SSL_CIPHER) **scsvs_out,
6812 int sslv2format, int fatal)
6814 const SSL_CIPHER *c;
6815 STACK_OF(SSL_CIPHER) *sk = NULL;
6816 STACK_OF(SSL_CIPHER) *scsvs = NULL;
6818 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
6819 unsigned char cipher[SSLV2_CIPHER_LEN];
6821 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6823 if (PACKET_remaining(cipher_suites) == 0) {
6825 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6827 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHERS_SPECIFIED);
6831 if (PACKET_remaining(cipher_suites) % n != 0) {
6833 SSLfatal(s, SSL_AD_DECODE_ERROR,
6834 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6836 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6840 sk = sk_SSL_CIPHER_new_null();
6841 scsvs = sk_SSL_CIPHER_new_null();
6842 if (sk == NULL || scsvs == NULL) {
6844 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6846 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6850 while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
6852 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
6853 * first byte set to zero, while true SSLv2 ciphers have a non-zero
6854 * first byte. We don't support any true SSLv2 ciphers, so skip them.
6856 if (sslv2format && cipher[0] != '\0')
6859 /* For SSLv2-compat, ignore leading 0-byte. */
6860 c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
6862 if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
6863 (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
6865 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6867 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6872 if (PACKET_remaining(cipher_suites) > 0) {
6874 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_LENGTH);
6876 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
6883 sk_SSL_CIPHER_free(sk);
6884 if (scsvs_out != NULL)
6887 sk_SSL_CIPHER_free(scsvs);
6890 sk_SSL_CIPHER_free(sk);
6891 sk_SSL_CIPHER_free(scsvs);
6895 int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
6897 ctx->max_early_data = max_early_data;
6902 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
6904 return ctx->max_early_data;
6907 int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
6909 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
6914 sc->max_early_data = max_early_data;
6919 uint32_t SSL_get_max_early_data(const SSL *s)
6921 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6926 return sc->max_early_data;
6929 int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
6931 ctx->recv_max_early_data = recv_max_early_data;
6936 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
6938 return ctx->recv_max_early_data;
6941 int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
6943 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
6948 sc->recv_max_early_data = recv_max_early_data;
6953 uint32_t SSL_get_recv_max_early_data(const SSL *s)
6955 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6960 return sc->recv_max_early_data;
6963 __owur unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION *sc)
6965 /* Return any active Max Fragment Len extension */
6966 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session))
6967 return GET_MAX_FRAGMENT_LENGTH(sc->session);
6969 /* return current SSL connection setting */
6970 return sc->max_send_fragment;
6973 __owur unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION *sc)
6975 /* Return a value regarding an active Max Fragment Len extension */
6976 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session)
6977 && sc->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(sc->session))
6978 return GET_MAX_FRAGMENT_LENGTH(sc->session);
6980 /* else limit |split_send_fragment| to current |max_send_fragment| */
6981 if (sc->split_send_fragment > sc->max_send_fragment)
6982 return sc->max_send_fragment;
6984 /* return current SSL connection setting */
6985 return sc->split_send_fragment;
6988 int SSL_stateless(SSL *s)
6991 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
6996 /* Ensure there is no state left over from a previous invocation */
7002 sc->s3.flags |= TLS1_FLAGS_STATELESS;
7003 ret = SSL_accept(s);
7004 sc->s3.flags &= ~TLS1_FLAGS_STATELESS;
7006 if (ret > 0 && sc->ext.cookieok)
7009 if (sc->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(sc))
7015 void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
7017 ctx->pha_enabled = val;
7020 void SSL_set_post_handshake_auth(SSL *ssl, int val)
7022 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
7027 sc->pha_enabled = val;
7030 int SSL_verify_client_post_handshake(SSL *ssl)
7032 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
7034 #ifndef OPENSSL_NO_QUIC
7036 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
7044 if (!SSL_CONNECTION_IS_TLS13(sc)) {
7045 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
7049 ERR_raise(ERR_LIB_SSL, SSL_R_NOT_SERVER);
7053 if (!SSL_is_init_finished(ssl)) {
7054 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
7058 switch (sc->post_handshake_auth) {
7060 ERR_raise(ERR_LIB_SSL, SSL_R_EXTENSION_NOT_RECEIVED);
7063 case SSL_PHA_EXT_SENT:
7064 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
7066 case SSL_PHA_EXT_RECEIVED:
7068 case SSL_PHA_REQUEST_PENDING:
7069 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_PENDING);
7071 case SSL_PHA_REQUESTED:
7072 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_SENT);
7076 sc->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
7078 /* checks verify_mode and algorithm_auth */
7079 if (!send_certificate_request(sc)) {
7080 sc->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
7081 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CONFIG);
7085 ossl_statem_set_in_init(sc, 1);
7089 int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
7090 SSL_CTX_generate_session_ticket_fn gen_cb,
7091 SSL_CTX_decrypt_session_ticket_fn dec_cb,
7094 ctx->generate_ticket_cb = gen_cb;
7095 ctx->decrypt_ticket_cb = dec_cb;
7096 ctx->ticket_cb_data = arg;
7100 void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
7101 SSL_allow_early_data_cb_fn cb,
7104 ctx->allow_early_data_cb = cb;
7105 ctx->allow_early_data_cb_data = arg;
7108 void SSL_set_allow_early_data_cb(SSL *s,
7109 SSL_allow_early_data_cb_fn cb,
7112 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7117 sc->allow_early_data_cb = cb;
7118 sc->allow_early_data_cb_data = arg;
7121 const EVP_CIPHER *ssl_evp_cipher_fetch(OSSL_LIB_CTX *libctx,
7123 const char *properties)
7125 const EVP_CIPHER *ciph;
7127 ciph = tls_get_cipher_from_engine(nid);
7132 * If there is no engine cipher then we do an explicit fetch. This may fail
7133 * and that could be ok
7136 ciph = EVP_CIPHER_fetch(libctx, OBJ_nid2sn(nid), properties);
7142 int ssl_evp_cipher_up_ref(const EVP_CIPHER *cipher)
7144 /* Don't up-ref an implicit EVP_CIPHER */
7145 if (EVP_CIPHER_get0_provider(cipher) == NULL)
7149 * The cipher was explicitly fetched and therefore it is safe to cast
7152 return EVP_CIPHER_up_ref((EVP_CIPHER *)cipher);
7155 void ssl_evp_cipher_free(const EVP_CIPHER *cipher)
7160 if (EVP_CIPHER_get0_provider(cipher) != NULL) {
7162 * The cipher was explicitly fetched and therefore it is safe to cast
7165 EVP_CIPHER_free((EVP_CIPHER *)cipher);
7169 const EVP_MD *ssl_evp_md_fetch(OSSL_LIB_CTX *libctx,
7171 const char *properties)
7175 md = tls_get_digest_from_engine(nid);
7179 /* Otherwise we do an explicit fetch */
7181 md = EVP_MD_fetch(libctx, OBJ_nid2sn(nid), properties);
7186 int ssl_evp_md_up_ref(const EVP_MD *md)
7188 /* Don't up-ref an implicit EVP_MD */
7189 if (EVP_MD_get0_provider(md) == NULL)
7193 * The digest was explicitly fetched and therefore it is safe to cast
7196 return EVP_MD_up_ref((EVP_MD *)md);
7199 void ssl_evp_md_free(const EVP_MD *md)
7204 if (EVP_MD_get0_provider(md) != NULL) {
7206 * The digest was explicitly fetched and therefore it is safe to cast
7209 EVP_MD_free((EVP_MD *)md);
7213 int SSL_set0_tmp_dh_pkey(SSL *s, EVP_PKEY *dhpkey)
7215 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7220 if (!ssl_security(sc, SSL_SECOP_TMP_DH,
7221 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
7222 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
7225 EVP_PKEY_free(sc->cert->dh_tmp);
7226 sc->cert->dh_tmp = dhpkey;
7230 int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX *ctx, EVP_PKEY *dhpkey)
7232 if (!ssl_ctx_security(ctx, SSL_SECOP_TMP_DH,
7233 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
7234 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
7237 EVP_PKEY_free(ctx->cert->dh_tmp);
7238 ctx->cert->dh_tmp = dhpkey;
7242 /* QUIC-specific methods which are supported on QUIC connections only. */
7243 int SSL_handle_events(SSL *s)
7247 #ifndef OPENSSL_NO_QUIC
7249 return ossl_quic_handle_events(s);
7252 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7253 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc))
7255 * DTLSv1_handle_timeout returns 0 if the timer wasn't expired yet,
7256 * which we consider a success case. Theoretically DTLSv1_handle_timeout
7257 * can also return 0 if s is NULL or not a DTLS object, but we've
7258 * already ruled out those possibilities above, so this is not possible
7259 * here. Thus the only failure cases are where DTLSv1_handle_timeout
7262 return DTLSv1_handle_timeout(s) >= 0;
7267 int SSL_get_event_timeout(SSL *s, struct timeval *tv, int *is_infinite)
7271 #ifndef OPENSSL_NO_QUIC
7273 return ossl_quic_get_event_timeout(s, tv, is_infinite);
7276 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7277 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc)
7278 && DTLSv1_get_timeout(s, tv)) {
7283 tv->tv_sec = 1000000;
7289 int SSL_get_rpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7291 #ifndef OPENSSL_NO_QUIC
7295 return ossl_quic_get_rpoll_descriptor(s, desc);
7301 int SSL_get_wpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7303 #ifndef OPENSSL_NO_QUIC
7307 return ossl_quic_get_wpoll_descriptor(s, desc);
7313 int SSL_net_read_desired(SSL *s)
7315 #ifndef OPENSSL_NO_QUIC
7319 return ossl_quic_get_net_read_desired(s);
7325 int SSL_net_write_desired(SSL *s)
7327 #ifndef OPENSSL_NO_QUIC
7331 return ossl_quic_get_net_write_desired(s);
7337 int SSL_set_blocking_mode(SSL *s, int blocking)
7339 #ifndef OPENSSL_NO_QUIC
7343 return ossl_quic_conn_set_blocking_mode(s, blocking);
7349 int SSL_get_blocking_mode(SSL *s)
7351 #ifndef OPENSSL_NO_QUIC
7355 return ossl_quic_conn_get_blocking_mode(s);
7361 int SSL_set_initial_peer_addr(SSL *s, const BIO_ADDR *peer_addr)
7363 #ifndef OPENSSL_NO_QUIC
7367 return ossl_quic_conn_set_initial_peer_addr(s, peer_addr);
7373 int SSL_shutdown_ex(SSL *ssl, uint64_t flags,
7374 const SSL_SHUTDOWN_EX_ARGS *args,
7377 #ifndef OPENSSL_NO_QUIC
7379 return SSL_shutdown(ssl);
7381 return ossl_quic_conn_shutdown(ssl, flags, args, args_len);
7383 return SSL_shutdown(ssl);
7387 int SSL_stream_conclude(SSL *ssl, uint64_t flags)
7389 #ifndef OPENSSL_NO_QUIC
7393 return ossl_quic_conn_stream_conclude(ssl);
7399 SSL *SSL_new_stream(SSL *s, uint64_t flags)
7401 #ifndef OPENSSL_NO_QUIC
7405 return ossl_quic_conn_stream_new(s, flags);
7411 SSL *SSL_get0_connection(SSL *s)
7413 #ifndef OPENSSL_NO_QUIC
7417 return ossl_quic_get0_connection(s);
7423 int SSL_is_connection(SSL *s)
7425 return SSL_get0_connection(s) == s;
7428 int SSL_get_stream_type(SSL *s)
7430 #ifndef OPENSSL_NO_QUIC
7432 return SSL_STREAM_TYPE_BIDI;
7434 return ossl_quic_get_stream_type(s);
7436 return SSL_STREAM_TYPE_BIDI;
7440 uint64_t SSL_get_stream_id(SSL *s)
7442 #ifndef OPENSSL_NO_QUIC
7446 return ossl_quic_get_stream_id(s);
7452 int SSL_set_default_stream_mode(SSL *s, uint32_t mode)
7454 #ifndef OPENSSL_NO_QUIC
7458 return ossl_quic_set_default_stream_mode(s, mode);
7464 int SSL_set_incoming_stream_policy(SSL *s, int policy, uint64_t aec)
7466 #ifndef OPENSSL_NO_QUIC
7470 return ossl_quic_set_incoming_stream_policy(s, policy, aec);
7476 SSL *SSL_accept_stream(SSL *s, uint64_t flags)
7478 #ifndef OPENSSL_NO_QUIC
7482 return ossl_quic_accept_stream(s, flags);
7488 size_t SSL_get_accept_stream_queue_len(SSL *s)
7490 #ifndef OPENSSL_NO_QUIC
7494 return ossl_quic_get_accept_stream_queue_len(s);
7500 int SSL_stream_reset(SSL *s,
7501 const SSL_STREAM_RESET_ARGS *args,
7504 #ifndef OPENSSL_NO_QUIC
7508 return ossl_quic_stream_reset(s, args, args_len);
7514 int SSL_get_stream_read_state(SSL *s)
7516 #ifndef OPENSSL_NO_QUIC
7518 return SSL_STREAM_STATE_NONE;
7520 return ossl_quic_get_stream_read_state(s);
7522 return SSL_STREAM_STATE_NONE;
7526 int SSL_get_stream_write_state(SSL *s)
7528 #ifndef OPENSSL_NO_QUIC
7530 return SSL_STREAM_STATE_NONE;
7532 return ossl_quic_get_stream_write_state(s);
7534 return SSL_STREAM_STATE_NONE;
7538 int SSL_get_stream_read_error_code(SSL *s, uint64_t *app_error_code)
7540 #ifndef OPENSSL_NO_QUIC
7544 return ossl_quic_get_stream_read_error_code(s, app_error_code);
7550 int SSL_get_stream_write_error_code(SSL *s, uint64_t *app_error_code)
7552 #ifndef OPENSSL_NO_QUIC
7556 return ossl_quic_get_stream_write_error_code(s, app_error_code);
7562 int SSL_get_conn_close_info(SSL *s, SSL_CONN_CLOSE_INFO *info,
7565 #ifndef OPENSSL_NO_QUIC
7569 return ossl_quic_get_conn_close_info(s, info, info_len);
7575 int SSL_add_expected_rpk(SSL *s, EVP_PKEY *rpk)
7577 unsigned char *data = NULL;
7578 SSL_DANE *dane = SSL_get0_dane(s);
7581 if (dane == NULL || dane->dctx == NULL)
7583 if ((ret = i2d_PUBKEY(rpk, &data)) <= 0)
7586 ret = SSL_dane_tlsa_add(s, DANETLS_USAGE_DANE_EE,
7587 DANETLS_SELECTOR_SPKI,
7588 DANETLS_MATCHING_FULL,
7589 data, (size_t)ret) > 0;
7594 EVP_PKEY *SSL_get0_peer_rpk(const SSL *s)
7596 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7598 if (sc == NULL || sc->session == NULL)
7600 return sc->session->peer_rpk;
7603 int SSL_get_negotiated_client_cert_type(const SSL *s)
7605 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7610 return sc->ext.client_cert_type;
7613 int SSL_get_negotiated_server_cert_type(const SSL *s)
7615 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7620 return sc->ext.server_cert_type;
7623 static int validate_cert_type(const unsigned char *val, size_t len)
7629 if (val == NULL && len == 0)
7632 if (val == NULL || len == 0)
7635 for (i = 0; i < len; i++) {
7637 case TLSEXT_cert_type_rpk:
7642 case TLSEXT_cert_type_x509:
7647 case TLSEXT_cert_type_pgp:
7648 case TLSEXT_cert_type_1609dot2:
7656 static int set_cert_type(unsigned char **cert_type,
7657 size_t *cert_type_len,
7658 const unsigned char *val,
7661 unsigned char *tmp = NULL;
7663 if (!validate_cert_type(val, len))
7666 if (val != NULL && (tmp = OPENSSL_memdup(val, len)) == NULL)
7669 OPENSSL_free(*cert_type);
7671 *cert_type_len = len;
7675 int SSL_set1_client_cert_type(SSL *s, const unsigned char *val, size_t len)
7677 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7679 return set_cert_type(&sc->client_cert_type, &sc->client_cert_type_len,
7683 int SSL_set1_server_cert_type(SSL *s, const unsigned char *val, size_t len)
7685 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7687 return set_cert_type(&sc->server_cert_type, &sc->server_cert_type_len,
7691 int SSL_CTX_set1_client_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7693 return set_cert_type(&ctx->client_cert_type, &ctx->client_cert_type_len,
7697 int SSL_CTX_set1_server_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7699 return set_cert_type(&ctx->server_cert_type, &ctx->server_cert_type_len,
7703 int SSL_get0_client_cert_type(const SSL *s, unsigned char **t, size_t *len)
7705 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7707 if (t == NULL || len == NULL)
7710 *t = sc->client_cert_type;
7711 *len = sc->client_cert_type_len;
7715 int SSL_get0_server_cert_type(const SSL *s, unsigned char **t, size_t *len)
7717 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7719 if (t == NULL || len == NULL)
7722 *t = sc->server_cert_type;
7723 *len = sc->server_cert_type_len;
7727 int SSL_CTX_get0_client_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7729 if (t == NULL || len == NULL)
7732 *t = ctx->client_cert_type;
7733 *len = ctx->client_cert_type_len;
7737 int SSL_CTX_get0_server_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7739 if (t == NULL || len == NULL)
7742 *t = ctx->server_cert_type;
7743 *len = ctx->server_cert_type_len;