2 * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 * Copyright 2005 Nokia. All rights reserved.
6 * Licensed under the Apache License 2.0 (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
13 #include "ssl_local.h"
14 #include "internal/e_os.h"
15 #include <openssl/objects.h>
16 #include <openssl/x509v3.h>
17 #include <openssl/rand.h>
18 #include <openssl/ocsp.h>
19 #include <openssl/dh.h>
20 #include <openssl/engine.h>
21 #include <openssl/async.h>
22 #include <openssl/ct.h>
23 #include <openssl/trace.h>
24 #include <openssl/core_names.h>
25 #include "internal/cryptlib.h"
26 #include "internal/nelem.h"
27 #include "internal/refcount.h"
28 #include "internal/ktls.h"
29 #include "quic/quic_local.h"
31 static int ssl_undefined_function_3(SSL_CONNECTION *sc, unsigned char *r,
32 unsigned char *s, size_t t, size_t *u)
34 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
37 static int ssl_undefined_function_4(SSL_CONNECTION *sc, int r)
39 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
42 static size_t ssl_undefined_function_5(SSL_CONNECTION *sc, const char *r,
43 size_t s, unsigned char *t)
45 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
48 static int ssl_undefined_function_6(int r)
50 return ssl_undefined_function(NULL);
53 static int ssl_undefined_function_7(SSL_CONNECTION *sc, unsigned char *r,
54 size_t s, const char *t, size_t u,
55 const unsigned char *v, size_t w, int x)
57 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
60 static int ssl_undefined_function_8(SSL_CONNECTION *sc)
62 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
65 SSL3_ENC_METHOD ssl3_undef_enc_method = {
66 ssl_undefined_function_8,
67 ssl_undefined_function_3,
68 ssl_undefined_function_4,
69 ssl_undefined_function_5,
70 NULL, /* client_finished_label */
71 0, /* client_finished_label_len */
72 NULL, /* server_finished_label */
73 0, /* server_finished_label_len */
74 ssl_undefined_function_6,
75 ssl_undefined_function_7,
78 struct ssl_async_args {
82 enum { READFUNC, WRITEFUNC, OTHERFUNC } type;
84 int (*func_read) (SSL *, void *, size_t, size_t *);
85 int (*func_write) (SSL *, const void *, size_t, size_t *);
86 int (*func_other) (SSL *);
96 DANETLS_MATCHING_FULL, 0, NID_undef
99 DANETLS_MATCHING_2256, 1, NID_sha256
102 DANETLS_MATCHING_2512, 2, NID_sha512
106 static int dane_ctx_enable(struct dane_ctx_st *dctx)
108 const EVP_MD **mdevp;
110 uint8_t mdmax = DANETLS_MATCHING_LAST;
111 int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */
114 if (dctx->mdevp != NULL)
117 mdevp = OPENSSL_zalloc(n * sizeof(*mdevp));
118 mdord = OPENSSL_zalloc(n * sizeof(*mdord));
120 if (mdord == NULL || mdevp == NULL) {
126 /* Install default entries */
127 for (i = 0; i < OSSL_NELEM(dane_mds); ++i) {
130 if (dane_mds[i].nid == NID_undef ||
131 (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL)
133 mdevp[dane_mds[i].mtype] = md;
134 mdord[dane_mds[i].mtype] = dane_mds[i].ord;
144 static void dane_ctx_final(struct dane_ctx_st *dctx)
146 OPENSSL_free(dctx->mdevp);
149 OPENSSL_free(dctx->mdord);
154 static void tlsa_free(danetls_record *t)
158 OPENSSL_free(t->data);
159 EVP_PKEY_free(t->spki);
163 static void dane_final(SSL_DANE *dane)
165 sk_danetls_record_pop_free(dane->trecs, tlsa_free);
168 OSSL_STACK_OF_X509_free(dane->certs);
171 X509_free(dane->mcert);
179 * dane_copy - Copy dane configuration, sans verification state.
181 static int ssl_dane_dup(SSL_CONNECTION *to, SSL_CONNECTION *from)
186 if (!DANETLS_ENABLED(&from->dane))
189 num = sk_danetls_record_num(from->dane.trecs);
190 dane_final(&to->dane);
191 to->dane.flags = from->dane.flags;
192 to->dane.dctx = &SSL_CONNECTION_GET_CTX(to)->dane;
193 to->dane.trecs = sk_danetls_record_new_reserve(NULL, num);
195 if (to->dane.trecs == NULL) {
196 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
200 for (i = 0; i < num; ++i) {
201 danetls_record *t = sk_danetls_record_value(from->dane.trecs, i);
203 if (SSL_dane_tlsa_add(SSL_CONNECTION_GET_SSL(to), t->usage,
204 t->selector, t->mtype, t->data, t->dlen) <= 0)
210 static int dane_mtype_set(struct dane_ctx_st *dctx,
211 const EVP_MD *md, uint8_t mtype, uint8_t ord)
215 if (mtype == DANETLS_MATCHING_FULL && md != NULL) {
216 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL);
220 if (mtype > dctx->mdmax) {
221 const EVP_MD **mdevp;
223 int n = ((int)mtype) + 1;
225 mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp));
230 mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord));
235 /* Zero-fill any gaps */
236 for (i = dctx->mdmax + 1; i < mtype; ++i) {
244 dctx->mdevp[mtype] = md;
245 /* Coerce ordinal of disabled matching types to 0 */
246 dctx->mdord[mtype] = (md == NULL) ? 0 : ord;
251 static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype)
253 if (mtype > dane->dctx->mdmax)
255 return dane->dctx->mdevp[mtype];
258 static int dane_tlsa_add(SSL_DANE *dane,
261 uint8_t mtype, const unsigned char *data, size_t dlen)
264 const EVP_MD *md = NULL;
265 int ilen = (int)dlen;
269 if (dane->trecs == NULL) {
270 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_NOT_ENABLED);
274 if (ilen < 0 || dlen != (size_t)ilen) {
275 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DATA_LENGTH);
279 if (usage > DANETLS_USAGE_LAST) {
280 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE);
284 if (selector > DANETLS_SELECTOR_LAST) {
285 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_SELECTOR);
289 if (mtype != DANETLS_MATCHING_FULL) {
290 md = tlsa_md_get(dane, mtype);
292 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE);
297 if (md != NULL && dlen != (size_t)EVP_MD_get_size(md)) {
298 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH);
302 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_NULL_DATA);
306 if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL)
310 t->selector = selector;
312 t->data = OPENSSL_malloc(dlen);
313 if (t->data == NULL) {
317 memcpy(t->data, data, dlen);
320 /* Validate and cache full certificate or public key */
321 if (mtype == DANETLS_MATCHING_FULL) {
322 const unsigned char *p = data;
324 EVP_PKEY *pkey = NULL;
327 case DANETLS_SELECTOR_CERT:
328 if (!d2i_X509(&cert, &p, ilen) || p < data ||
329 dlen != (size_t)(p - data)) {
331 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
334 if (X509_get0_pubkey(cert) == NULL) {
336 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
340 if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
346 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
347 * records that contain full certificates of trust-anchors that are
348 * not present in the wire chain. For usage PKIX-TA(0), we augment
349 * the chain with untrusted Full(0) certificates from DNS, in case
350 * they are missing from the chain.
352 if ((dane->certs == NULL &&
353 (dane->certs = sk_X509_new_null()) == NULL) ||
354 !sk_X509_push(dane->certs, cert)) {
355 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
362 case DANETLS_SELECTOR_SPKI:
363 if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data ||
364 dlen != (size_t)(p - data)) {
366 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
371 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
372 * records that contain full bare keys of trust-anchors that are
373 * not present in the wire chain.
375 if (usage == DANETLS_USAGE_DANE_TA)
384 * Find the right insertion point for the new record.
386 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
387 * they can be processed first, as they require no chain building, and no
388 * expiration or hostname checks. Because DANE-EE(3) is numerically
389 * largest, this is accomplished via descending sort by "usage".
391 * We also sort in descending order by matching ordinal to simplify
392 * the implementation of digest agility in the verification code.
394 * The choice of order for the selector is not significant, so we
395 * use the same descending order for consistency.
397 num = sk_danetls_record_num(dane->trecs);
398 for (i = 0; i < num; ++i) {
399 danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
401 if (rec->usage > usage)
403 if (rec->usage < usage)
405 if (rec->selector > selector)
407 if (rec->selector < selector)
409 if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
414 if (!sk_danetls_record_insert(dane->trecs, t, i)) {
416 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
419 dane->umask |= DANETLS_USAGE_BIT(usage);
425 * Return 0 if there is only one version configured and it was disabled
426 * at configure time. Return 1 otherwise.
428 static int ssl_check_allowed_versions(int min_version, int max_version)
430 int minisdtls = 0, maxisdtls = 0;
432 /* Figure out if we're doing DTLS versions or TLS versions */
433 if (min_version == DTLS1_BAD_VER
434 || min_version >> 8 == DTLS1_VERSION_MAJOR)
436 if (max_version == DTLS1_BAD_VER
437 || max_version >> 8 == DTLS1_VERSION_MAJOR)
439 /* A wildcard version of 0 could be DTLS or TLS. */
440 if ((minisdtls && !maxisdtls && max_version != 0)
441 || (maxisdtls && !minisdtls && min_version != 0)) {
442 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
446 if (minisdtls || maxisdtls) {
447 /* Do DTLS version checks. */
448 if (min_version == 0)
449 /* Ignore DTLS1_BAD_VER */
450 min_version = DTLS1_VERSION;
451 if (max_version == 0)
452 max_version = DTLS1_2_VERSION;
453 #ifdef OPENSSL_NO_DTLS1_2
454 if (max_version == DTLS1_2_VERSION)
455 max_version = DTLS1_VERSION;
457 #ifdef OPENSSL_NO_DTLS1
458 if (min_version == DTLS1_VERSION)
459 min_version = DTLS1_2_VERSION;
461 /* Done massaging versions; do the check. */
463 #ifdef OPENSSL_NO_DTLS1
464 || (DTLS_VERSION_GE(min_version, DTLS1_VERSION)
465 && DTLS_VERSION_GE(DTLS1_VERSION, max_version))
467 #ifdef OPENSSL_NO_DTLS1_2
468 || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION)
469 && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version))
474 /* Regular TLS version checks. */
475 if (min_version == 0)
476 min_version = SSL3_VERSION;
477 if (max_version == 0)
478 max_version = TLS1_3_VERSION;
479 #ifdef OPENSSL_NO_TLS1_3
480 if (max_version == TLS1_3_VERSION)
481 max_version = TLS1_2_VERSION;
483 #ifdef OPENSSL_NO_TLS1_2
484 if (max_version == TLS1_2_VERSION)
485 max_version = TLS1_1_VERSION;
487 #ifdef OPENSSL_NO_TLS1_1
488 if (max_version == TLS1_1_VERSION)
489 max_version = TLS1_VERSION;
491 #ifdef OPENSSL_NO_TLS1
492 if (max_version == TLS1_VERSION)
493 max_version = SSL3_VERSION;
495 #ifdef OPENSSL_NO_SSL3
496 if (min_version == SSL3_VERSION)
497 min_version = TLS1_VERSION;
499 #ifdef OPENSSL_NO_TLS1
500 if (min_version == TLS1_VERSION)
501 min_version = TLS1_1_VERSION;
503 #ifdef OPENSSL_NO_TLS1_1
504 if (min_version == TLS1_1_VERSION)
505 min_version = TLS1_2_VERSION;
507 #ifdef OPENSSL_NO_TLS1_2
508 if (min_version == TLS1_2_VERSION)
509 min_version = TLS1_3_VERSION;
511 /* Done massaging versions; do the check. */
513 #ifdef OPENSSL_NO_SSL3
514 || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version)
516 #ifdef OPENSSL_NO_TLS1
517 || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version)
519 #ifdef OPENSSL_NO_TLS1_1
520 || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version)
522 #ifdef OPENSSL_NO_TLS1_2
523 || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version)
525 #ifdef OPENSSL_NO_TLS1_3
526 || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version)
534 #if defined(__TANDEM) && defined(OPENSSL_VPROC)
536 * Define a VPROC function for HP NonStop build ssl library.
537 * This is used by platform version identification tools.
538 * Do not inline this procedure or make it static.
540 # define OPENSSL_VPROC_STRING_(x) x##_SSL
541 # define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
542 # define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
543 void OPENSSL_VPROC_FUNC(void) {}
546 static int clear_record_layer(SSL_CONNECTION *s)
550 /* We try and reset both record layers even if one fails */
552 ret = ssl_set_new_record_layer(s,
553 SSL_CONNECTION_IS_DTLS(s) ? DTLS_ANY_VERSION
555 OSSL_RECORD_DIRECTION_READ,
556 OSSL_RECORD_PROTECTION_LEVEL_NONE, NULL, 0,
557 NULL, 0, NULL, 0, NULL, 0, NULL, 0,
558 NID_undef, NULL, NULL, NULL);
560 ret &= ssl_set_new_record_layer(s,
561 SSL_CONNECTION_IS_DTLS(s) ? DTLS_ANY_VERSION
563 OSSL_RECORD_DIRECTION_WRITE,
564 OSSL_RECORD_PROTECTION_LEVEL_NONE, NULL, 0,
565 NULL, 0, NULL, 0, NULL, 0, NULL, 0,
566 NID_undef, NULL, NULL, NULL);
568 /* SSLfatal already called in the event of failure */
572 int SSL_clear(SSL *s)
574 if (s->method == NULL) {
575 ERR_raise(ERR_LIB_SSL, SSL_R_NO_METHOD_SPECIFIED);
579 return s->method->ssl_reset(s);
582 int ossl_ssl_connection_reset(SSL *s)
584 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
589 if (ssl_clear_bad_session(sc)) {
590 SSL_SESSION_free(sc->session);
593 SSL_SESSION_free(sc->psksession);
594 sc->psksession = NULL;
595 OPENSSL_free(sc->psksession_id);
596 sc->psksession_id = NULL;
597 sc->psksession_id_len = 0;
598 sc->hello_retry_request = 0;
599 sc->sent_tickets = 0;
605 if (sc->renegotiate) {
606 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
610 ossl_statem_clear(sc);
612 /* TODO(QUIC): Version handling not yet clear */
613 sc->version = s->method->version;
614 sc->client_version = sc->version;
615 sc->rwstate = SSL_NOTHING;
617 BUF_MEM_free(sc->init_buf);
619 sc->first_packet = 0;
621 sc->key_update = SSL_KEY_UPDATE_NONE;
622 memset(sc->ext.compress_certificate_from_peer, 0,
623 sizeof(sc->ext.compress_certificate_from_peer));
624 sc->ext.compress_certificate_sent = 0;
626 EVP_MD_CTX_free(sc->pha_dgst);
629 /* Reset DANE verification result state */
632 X509_free(sc->dane.mcert);
633 sc->dane.mcert = NULL;
634 sc->dane.mtlsa = NULL;
636 /* Clear the verification result peername */
637 X509_VERIFY_PARAM_move_peername(sc->param, NULL);
639 /* Clear any shared connection state */
640 OPENSSL_free(sc->shared_sigalgs);
641 sc->shared_sigalgs = NULL;
642 sc->shared_sigalgslen = 0;
645 * Check to see if we were changed into a different method, if so, revert
648 if (s->method != s->defltmeth) {
649 s->method->ssl_deinit(s);
650 s->method = s->defltmeth;
651 if (!s->method->ssl_init(s))
654 if (!s->method->ssl_clear(s))
658 RECORD_LAYER_clear(&sc->rlayer);
659 BIO_free(sc->rlayer.rrlnext);
660 sc->rlayer.rrlnext = NULL;
662 if (!clear_record_layer(sc))
668 #ifndef OPENSSL_NO_DEPRECATED_3_0
669 /** Used to change an SSL_CTXs default SSL method type */
670 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
672 STACK_OF(SSL_CIPHER) *sk;
676 if (!SSL_CTX_set_ciphersuites(ctx, OSSL_default_ciphersuites())) {
677 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
680 sk = ssl_create_cipher_list(ctx,
681 ctx->tls13_ciphersuites,
683 &(ctx->cipher_list_by_id),
684 OSSL_default_cipher_list(), ctx->cert);
685 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
686 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
693 SSL *SSL_new(SSL_CTX *ctx)
696 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_CTX);
699 if (ctx->method == NULL) {
700 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
703 return ctx->method->ssl_new(ctx);
706 int ossl_ssl_init(SSL *ssl, SSL_CTX *ctx, const SSL_METHOD *method, int type)
710 ssl->lock = CRYPTO_THREAD_lock_new();
711 if (ssl->lock == NULL)
714 if (!CRYPTO_NEW_REF(&ssl->references, 1)) {
715 CRYPTO_THREAD_lock_free(ssl->lock);
719 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, ssl, &ssl->ex_data)) {
720 CRYPTO_THREAD_lock_free(ssl->lock);
721 CRYPTO_FREE_REF(&ssl->references);
729 ssl->defltmeth = ssl->method = method;
734 SSL *ossl_ssl_connection_new_int(SSL_CTX *ctx, const SSL_METHOD *method)
739 s = OPENSSL_zalloc(sizeof(*s));
744 if (!ossl_ssl_init(ssl, ctx, method, SSL_TYPE_SSL_CONNECTION)) {
751 RECORD_LAYER_init(&s->rlayer, s);
753 s->options = ctx->options;
755 s->dane.flags = ctx->dane.flags;
756 if (method->version == ctx->method->version) {
757 s->min_proto_version = ctx->min_proto_version;
758 s->max_proto_version = ctx->max_proto_version;
761 s->max_cert_list = ctx->max_cert_list;
763 if (!IS_QUIC_CTX(ctx)) {
764 s->max_early_data = ctx->max_early_data;
765 s->recv_max_early_data = ctx->recv_max_early_data;
768 s->num_tickets = ctx->num_tickets;
769 s->pha_enabled = ctx->pha_enabled;
771 /* Shallow copy of the ciphersuites stack */
772 s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
773 if (s->tls13_ciphersuites == NULL)
777 * Earlier library versions used to copy the pointer to the CERT, not
778 * its contents; only when setting new parameters for the per-SSL
779 * copy, ssl_cert_new would be called (and the direct reference to
780 * the per-SSL_CTX settings would be lost, but those still were
781 * indirectly accessed for various purposes, and for that reason they
782 * used to be known as s->ctx->default_cert). Now we don't look at the
783 * SSL_CTX's CERT after having duplicated it once.
785 s->cert = ssl_cert_dup(ctx->cert);
789 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
790 s->msg_callback = ctx->msg_callback;
791 s->msg_callback_arg = ctx->msg_callback_arg;
792 s->verify_mode = ctx->verify_mode;
793 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
794 if (!IS_QUIC_CTX(ctx)) {
795 s->rlayer.record_padding_cb = ctx->record_padding_cb;
796 s->rlayer.record_padding_arg = ctx->record_padding_arg;
797 s->rlayer.block_padding = ctx->block_padding;
799 s->sid_ctx_length = ctx->sid_ctx_length;
800 if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
802 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
803 s->verify_callback = ctx->default_verify_callback;
804 s->generate_session_id = ctx->generate_session_id;
806 s->param = X509_VERIFY_PARAM_new();
807 if (s->param == NULL)
809 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
810 s->quiet_shutdown = ctx->quiet_shutdown;
812 if (!IS_QUIC_CTX(ctx))
813 s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
815 s->max_send_fragment = ctx->max_send_fragment;
816 s->split_send_fragment = ctx->split_send_fragment;
817 s->max_pipelines = ctx->max_pipelines;
818 s->rlayer.default_read_buf_len = ctx->default_read_buf_len;
821 s->ext.debug_arg = NULL;
822 s->ext.ticket_expected = 0;
823 s->ext.status_type = ctx->ext.status_type;
824 s->ext.status_expected = 0;
825 s->ext.ocsp.ids = NULL;
826 s->ext.ocsp.exts = NULL;
827 s->ext.ocsp.resp = NULL;
828 s->ext.ocsp.resp_len = 0;
830 s->session_ctx = ctx;
831 if (ctx->ext.ecpointformats) {
832 s->ext.ecpointformats =
833 OPENSSL_memdup(ctx->ext.ecpointformats,
834 ctx->ext.ecpointformats_len);
835 if (!s->ext.ecpointformats) {
836 s->ext.ecpointformats_len = 0;
839 s->ext.ecpointformats_len =
840 ctx->ext.ecpointformats_len;
842 if (ctx->ext.supportedgroups) {
843 s->ext.supportedgroups =
844 OPENSSL_memdup(ctx->ext.supportedgroups,
845 ctx->ext.supportedgroups_len
846 * sizeof(*ctx->ext.supportedgroups));
847 if (!s->ext.supportedgroups) {
848 s->ext.supportedgroups_len = 0;
851 s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
854 #ifndef OPENSSL_NO_NEXTPROTONEG
858 if (ctx->ext.alpn != NULL) {
859 s->ext.alpn = OPENSSL_malloc(ctx->ext.alpn_len);
860 if (s->ext.alpn == NULL) {
864 memcpy(s->ext.alpn, ctx->ext.alpn, ctx->ext.alpn_len);
865 s->ext.alpn_len = ctx->ext.alpn_len;
868 s->verified_chain = NULL;
869 s->verify_result = X509_V_OK;
871 s->default_passwd_callback = ctx->default_passwd_callback;
872 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
874 s->key_update = SSL_KEY_UPDATE_NONE;
876 if (!IS_QUIC_CTX(ctx)) {
877 s->allow_early_data_cb = ctx->allow_early_data_cb;
878 s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
881 if (!method->ssl_init(ssl))
884 s->server = (method->ssl_accept == ssl_undefined_function) ? 0 : 1;
886 if (!method->ssl_reset(ssl))
889 #ifndef OPENSSL_NO_PSK
890 s->psk_client_callback = ctx->psk_client_callback;
891 s->psk_server_callback = ctx->psk_server_callback;
893 s->psk_find_session_cb = ctx->psk_find_session_cb;
894 s->psk_use_session_cb = ctx->psk_use_session_cb;
896 s->async_cb = ctx->async_cb;
897 s->async_cb_arg = ctx->async_cb_arg;
901 #ifndef OPENSSL_NO_COMP_ALG
902 memcpy(s->cert_comp_prefs, ctx->cert_comp_prefs, sizeof(s->cert_comp_prefs));
904 if (ctx->client_cert_type != NULL) {
905 s->client_cert_type = OPENSSL_memdup(ctx->client_cert_type,
906 ctx->client_cert_type_len);
907 if (s->client_cert_type == NULL)
909 s->client_cert_type_len = ctx->client_cert_type_len;
911 if (ctx->server_cert_type != NULL) {
912 s->server_cert_type = OPENSSL_memdup(ctx->server_cert_type,
913 ctx->server_cert_type_len);
914 if (s->server_cert_type == NULL)
916 s->server_cert_type_len = ctx->server_cert_type_len;
919 #ifndef OPENSSL_NO_CT
920 if (!SSL_set_ct_validation_callback(ssl, ctx->ct_validation_callback,
921 ctx->ct_validation_callback_arg))
925 s->ssl_pkey_num = SSL_PKEY_NUM + ctx->sigalg_list_len;
928 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
931 ERR_raise(ERR_LIB_SSL, ERR_R_ASN1_LIB);
934 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
940 SSL *ossl_ssl_connection_new(SSL_CTX *ctx)
942 return ossl_ssl_connection_new_int(ctx, ctx->method);
945 int SSL_is_dtls(const SSL *s)
947 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
949 #ifndef OPENSSL_NO_QUIC
950 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
957 return SSL_CONNECTION_IS_DTLS(sc) ? 1 : 0;
960 int SSL_is_tls(const SSL *s)
962 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
964 #ifndef OPENSSL_NO_QUIC
965 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
972 return SSL_CONNECTION_IS_DTLS(sc) ? 0 : 1;
975 int SSL_is_quic(const SSL *s)
977 #ifndef OPENSSL_NO_QUIC
978 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
984 int SSL_up_ref(SSL *s)
988 if (CRYPTO_UP_REF(&s->references, &i) <= 0)
991 REF_PRINT_COUNT("SSL", s);
992 REF_ASSERT_ISNT(i < 2);
993 return ((i > 1) ? 1 : 0);
996 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
997 unsigned int sid_ctx_len)
999 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
1000 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
1003 ctx->sid_ctx_length = sid_ctx_len;
1004 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
1009 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
1010 unsigned int sid_ctx_len)
1012 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1017 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
1018 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
1021 sc->sid_ctx_length = sid_ctx_len;
1022 memcpy(sc->sid_ctx, sid_ctx, sid_ctx_len);
1027 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
1029 if (!CRYPTO_THREAD_write_lock(ctx->lock))
1031 ctx->generate_session_id = cb;
1032 CRYPTO_THREAD_unlock(ctx->lock);
1036 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
1038 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1040 if (sc == NULL || !CRYPTO_THREAD_write_lock(ssl->lock))
1042 sc->generate_session_id = cb;
1043 CRYPTO_THREAD_unlock(ssl->lock);
1047 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
1048 unsigned int id_len)
1051 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
1052 * we can "construct" a session to give us the desired check - i.e. to
1053 * find if there's a session in the hash table that would conflict with
1054 * any new session built out of this id/id_len and the ssl_version in use
1058 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
1060 if (sc == NULL || id_len > sizeof(r.session_id))
1063 r.ssl_version = sc->version;
1064 r.session_id_length = id_len;
1065 memcpy(r.session_id, id, id_len);
1067 if (!CRYPTO_THREAD_read_lock(sc->session_ctx->lock))
1069 p = lh_SSL_SESSION_retrieve(sc->session_ctx->sessions, &r);
1070 CRYPTO_THREAD_unlock(sc->session_ctx->lock);
1074 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
1076 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
1079 int SSL_set_purpose(SSL *s, int purpose)
1081 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1086 return X509_VERIFY_PARAM_set_purpose(sc->param, purpose);
1089 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
1091 return X509_VERIFY_PARAM_set_trust(s->param, trust);
1094 int SSL_set_trust(SSL *s, int trust)
1096 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1101 return X509_VERIFY_PARAM_set_trust(sc->param, trust);
1104 int SSL_set1_host(SSL *s, const char *hostname)
1106 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1111 /* If a hostname is provided and parses as an IP address,
1112 * treat it as such. */
1113 if (hostname != NULL
1114 && X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname) == 1)
1117 return X509_VERIFY_PARAM_set1_host(sc->param, hostname, 0);
1120 int SSL_add1_host(SSL *s, const char *hostname)
1122 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1127 /* If a hostname is provided and parses as an IP address,
1128 * treat it as such. */
1131 ASN1_OCTET_STRING *ip;
1134 ip = a2i_IPADDRESS(hostname);
1136 /* We didn't want it; only to check if it *is* an IP address */
1137 ASN1_OCTET_STRING_free(ip);
1139 old_ip = X509_VERIFY_PARAM_get1_ip_asc(sc->param);
1142 OPENSSL_free(old_ip);
1143 /* There can be only one IP address */
1147 return X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname);
1151 return X509_VERIFY_PARAM_add1_host(sc->param, hostname, 0);
1154 void SSL_set_hostflags(SSL *s, unsigned int flags)
1156 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1161 X509_VERIFY_PARAM_set_hostflags(sc->param, flags);
1164 const char *SSL_get0_peername(SSL *s)
1166 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1171 return X509_VERIFY_PARAM_get0_peername(sc->param);
1174 int SSL_CTX_dane_enable(SSL_CTX *ctx)
1176 return dane_ctx_enable(&ctx->dane);
1179 unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
1181 unsigned long orig = ctx->dane.flags;
1183 ctx->dane.flags |= flags;
1187 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
1189 unsigned long orig = ctx->dane.flags;
1191 ctx->dane.flags &= ~flags;
1195 int SSL_dane_enable(SSL *s, const char *basedomain)
1198 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1204 if (s->ctx->dane.mdmax == 0) {
1205 ERR_raise(ERR_LIB_SSL, SSL_R_CONTEXT_NOT_DANE_ENABLED);
1208 if (dane->trecs != NULL) {
1209 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_ALREADY_ENABLED);
1214 * Default SNI name. This rejects empty names, while set1_host below
1215 * accepts them and disables hostname checks. To avoid side-effects with
1216 * invalid input, set the SNI name first.
1218 if (sc->ext.hostname == NULL) {
1219 if (!SSL_set_tlsext_host_name(s, basedomain)) {
1220 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1225 /* Primary RFC6125 reference identifier */
1226 if (!X509_VERIFY_PARAM_set1_host(sc->param, basedomain, 0)) {
1227 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1233 dane->dctx = &s->ctx->dane;
1234 dane->trecs = sk_danetls_record_new_null();
1236 if (dane->trecs == NULL) {
1237 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
1243 unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
1246 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1251 orig = sc->dane.flags;
1253 sc->dane.flags |= flags;
1257 unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
1260 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1265 orig = sc->dane.flags;
1267 sc->dane.flags &= ~flags;
1271 int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
1274 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1281 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1285 *mcert = dane->mcert;
1287 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
1292 int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
1293 uint8_t *mtype, const unsigned char **data, size_t *dlen)
1296 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1303 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1307 *usage = dane->mtlsa->usage;
1309 *selector = dane->mtlsa->selector;
1311 *mtype = dane->mtlsa->mtype;
1313 *data = dane->mtlsa->data;
1315 *dlen = dane->mtlsa->dlen;
1320 SSL_DANE *SSL_get0_dane(SSL *s)
1322 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1330 int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
1331 uint8_t mtype, const unsigned char *data, size_t dlen)
1333 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1338 return dane_tlsa_add(&sc->dane, usage, selector, mtype, data, dlen);
1341 int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
1344 return dane_mtype_set(&ctx->dane, md, mtype, ord);
1347 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
1349 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
1352 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
1354 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1359 return X509_VERIFY_PARAM_set1(sc->param, vpm);
1362 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
1367 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
1369 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1377 void SSL_certs_clear(SSL *s)
1379 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1384 ssl_cert_clear_certs(sc->cert);
1387 void SSL_free(SSL *s)
1393 CRYPTO_DOWN_REF(&s->references, &i);
1394 REF_PRINT_COUNT("SSL", s);
1397 REF_ASSERT_ISNT(i < 0);
1399 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1401 if (s->method != NULL)
1402 s->method->ssl_free(s);
1404 SSL_CTX_free(s->ctx);
1405 CRYPTO_THREAD_lock_free(s->lock);
1406 CRYPTO_FREE_REF(&s->references);
1411 void ossl_ssl_connection_free(SSL *ssl)
1415 s = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
1419 X509_VERIFY_PARAM_free(s->param);
1420 dane_final(&s->dane);
1422 /* Ignore return value */
1423 ssl_free_wbio_buffer(s);
1425 RECORD_LAYER_clear(&s->rlayer);
1427 BUF_MEM_free(s->init_buf);
1429 /* add extra stuff */
1430 sk_SSL_CIPHER_free(s->cipher_list);
1431 sk_SSL_CIPHER_free(s->cipher_list_by_id);
1432 sk_SSL_CIPHER_free(s->tls13_ciphersuites);
1433 sk_SSL_CIPHER_free(s->peer_ciphers);
1435 /* Make the next call work :-) */
1436 if (s->session != NULL) {
1437 ssl_clear_bad_session(s);
1438 SSL_SESSION_free(s->session);
1440 SSL_SESSION_free(s->psksession);
1441 OPENSSL_free(s->psksession_id);
1443 ssl_cert_free(s->cert);
1444 OPENSSL_free(s->shared_sigalgs);
1445 /* Free up if allocated */
1447 OPENSSL_free(s->ext.hostname);
1448 SSL_CTX_free(s->session_ctx);
1449 OPENSSL_free(s->ext.ecpointformats);
1450 OPENSSL_free(s->ext.peer_ecpointformats);
1451 OPENSSL_free(s->ext.supportedgroups);
1452 OPENSSL_free(s->ext.peer_supportedgroups);
1453 sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
1454 #ifndef OPENSSL_NO_OCSP
1455 sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
1457 #ifndef OPENSSL_NO_CT
1458 SCT_LIST_free(s->scts);
1459 OPENSSL_free(s->ext.scts);
1461 OPENSSL_free(s->ext.ocsp.resp);
1462 OPENSSL_free(s->ext.alpn);
1463 OPENSSL_free(s->ext.tls13_cookie);
1464 if (s->clienthello != NULL)
1465 OPENSSL_free(s->clienthello->pre_proc_exts);
1466 OPENSSL_free(s->clienthello);
1467 OPENSSL_free(s->pha_context);
1468 EVP_MD_CTX_free(s->pha_dgst);
1470 sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
1471 sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
1473 OPENSSL_free(s->client_cert_type);
1474 OPENSSL_free(s->server_cert_type);
1476 OSSL_STACK_OF_X509_free(s->verified_chain);
1478 if (ssl->method != NULL)
1479 ssl->method->ssl_deinit(ssl);
1481 ASYNC_WAIT_CTX_free(s->waitctx);
1483 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1484 OPENSSL_free(s->ext.npn);
1487 #ifndef OPENSSL_NO_SRTP
1488 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
1492 * We do this late. We want to ensure that any other references we held to
1493 * these BIOs are freed first *before* we call BIO_free_all(), because
1494 * BIO_free_all() will only free each BIO in the chain if the number of
1495 * references to the first BIO have dropped to 0
1497 BIO_free_all(s->wbio);
1499 BIO_free_all(s->rbio);
1501 OPENSSL_free(s->s3.tmp.valid_flags);
1504 void SSL_set0_rbio(SSL *s, BIO *rbio)
1506 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1508 #ifndef OPENSSL_NO_QUIC
1510 ossl_quic_conn_set0_net_rbio(s, rbio);
1518 BIO_free_all(sc->rbio);
1520 sc->rlayer.rrlmethod->set1_bio(sc->rlayer.rrl, sc->rbio);
1523 void SSL_set0_wbio(SSL *s, BIO *wbio)
1525 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1527 #ifndef OPENSSL_NO_QUIC
1529 ossl_quic_conn_set0_net_wbio(s, wbio);
1538 * If the output buffering BIO is still in place, remove it
1540 if (sc->bbio != NULL)
1541 sc->wbio = BIO_pop(sc->wbio);
1543 BIO_free_all(sc->wbio);
1546 /* Re-attach |bbio| to the new |wbio|. */
1547 if (sc->bbio != NULL)
1548 sc->wbio = BIO_push(sc->bbio, sc->wbio);
1550 sc->rlayer.wrlmethod->set1_bio(sc->rlayer.wrl, sc->wbio);
1553 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1556 * For historical reasons, this function has many different cases in
1557 * ownership handling.
1560 /* If nothing has changed, do nothing */
1561 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1565 * If the two arguments are equal then one fewer reference is granted by the
1566 * caller than we want to take
1568 if (rbio != NULL && rbio == wbio)
1572 * If only the wbio is changed only adopt one reference.
1574 if (rbio == SSL_get_rbio(s)) {
1575 SSL_set0_wbio(s, wbio);
1579 * There is an asymmetry here for historical reasons. If only the rbio is
1580 * changed AND the rbio and wbio were originally different, then we only
1581 * adopt one reference.
1583 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1584 SSL_set0_rbio(s, rbio);
1588 /* Otherwise, adopt both references. */
1589 SSL_set0_rbio(s, rbio);
1590 SSL_set0_wbio(s, wbio);
1593 BIO *SSL_get_rbio(const SSL *s)
1595 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1597 #ifndef OPENSSL_NO_QUIC
1599 return ossl_quic_conn_get_net_rbio(s);
1608 BIO *SSL_get_wbio(const SSL *s)
1610 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1612 #ifndef OPENSSL_NO_QUIC
1614 return ossl_quic_conn_get_net_wbio(s);
1620 if (sc->bbio != NULL) {
1622 * If |bbio| is active, the true caller-configured BIO is its
1625 return BIO_next(sc->bbio);
1630 int SSL_get_fd(const SSL *s)
1632 return SSL_get_rfd(s);
1635 int SSL_get_rfd(const SSL *s)
1640 b = SSL_get_rbio(s);
1641 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1643 BIO_get_fd(r, &ret);
1647 int SSL_get_wfd(const SSL *s)
1652 b = SSL_get_wbio(s);
1653 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1655 BIO_get_fd(r, &ret);
1659 #ifndef OPENSSL_NO_SOCK
1660 int SSL_set_fd(SSL *s, int fd)
1665 bio = BIO_new(BIO_s_socket());
1668 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1671 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1672 SSL_set_bio(s, bio, bio);
1673 #ifndef OPENSSL_NO_KTLS
1675 * The new socket is created successfully regardless of ktls_enable.
1676 * ktls_enable doesn't change any functionality of the socket, except
1677 * changing the setsockopt to enable the processing of ktls_start.
1678 * Thus, it is not a problem to call it for non-TLS sockets.
1681 #endif /* OPENSSL_NO_KTLS */
1687 int SSL_set_wfd(SSL *s, int fd)
1689 BIO *rbio = SSL_get_rbio(s);
1691 if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET
1692 || (int)BIO_get_fd(rbio, NULL) != fd) {
1693 BIO *bio = BIO_new(BIO_s_socket());
1696 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1699 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1700 SSL_set0_wbio(s, bio);
1701 #ifndef OPENSSL_NO_KTLS
1703 * The new socket is created successfully regardless of ktls_enable.
1704 * ktls_enable doesn't change any functionality of the socket, except
1705 * changing the setsockopt to enable the processing of ktls_start.
1706 * Thus, it is not a problem to call it for non-TLS sockets.
1709 #endif /* OPENSSL_NO_KTLS */
1712 SSL_set0_wbio(s, rbio);
1717 int SSL_set_rfd(SSL *s, int fd)
1719 BIO *wbio = SSL_get_wbio(s);
1721 if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET
1722 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
1723 BIO *bio = BIO_new(BIO_s_socket());
1726 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1729 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1730 SSL_set0_rbio(s, bio);
1733 SSL_set0_rbio(s, wbio);
1740 /* return length of latest Finished message we sent, copy to 'buf' */
1741 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
1744 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1749 ret = sc->s3.tmp.finish_md_len;
1752 memcpy(buf, sc->s3.tmp.finish_md, count);
1756 /* return length of latest Finished message we expected, copy to 'buf' */
1757 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
1760 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1765 ret = sc->s3.tmp.peer_finish_md_len;
1768 memcpy(buf, sc->s3.tmp.peer_finish_md, count);
1772 int SSL_get_verify_mode(const SSL *s)
1774 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1779 return sc->verify_mode;
1782 int SSL_get_verify_depth(const SSL *s)
1784 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1789 return X509_VERIFY_PARAM_get_depth(sc->param);
1792 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
1793 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1798 return sc->verify_callback;
1801 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
1803 return ctx->verify_mode;
1806 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
1808 return X509_VERIFY_PARAM_get_depth(ctx->param);
1811 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
1812 return ctx->default_verify_callback;
1815 void SSL_set_verify(SSL *s, int mode,
1816 int (*callback) (int ok, X509_STORE_CTX *ctx))
1818 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1823 sc->verify_mode = mode;
1824 if (callback != NULL)
1825 sc->verify_callback = callback;
1828 void SSL_set_verify_depth(SSL *s, int depth)
1830 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1835 X509_VERIFY_PARAM_set_depth(sc->param, depth);
1838 void SSL_set_read_ahead(SSL *s, int yes)
1840 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1841 OSSL_PARAM options[2], *opts = options;
1843 if (sc == NULL || IS_QUIC_SSL(s))
1846 RECORD_LAYER_set_read_ahead(&sc->rlayer, yes);
1848 *opts++ = OSSL_PARAM_construct_int(OSSL_LIBSSL_RECORD_LAYER_PARAM_READ_AHEAD,
1849 &sc->rlayer.read_ahead);
1850 *opts = OSSL_PARAM_construct_end();
1852 /* Ignore return value */
1853 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
1856 int SSL_get_read_ahead(const SSL *s)
1858 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1860 if (sc == NULL || IS_QUIC_SSL(s))
1863 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
1866 int SSL_pending(const SSL *s)
1868 size_t pending = s->method->ssl_pending(s);
1871 * SSL_pending cannot work properly if read-ahead is enabled
1872 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1873 * impossible to fix since SSL_pending cannot report errors that may be
1874 * observed while scanning the new data. (Note that SSL_pending() is
1875 * often used as a boolean value, so we'd better not return -1.)
1877 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1878 * we just return INT_MAX.
1880 return pending < INT_MAX ? (int)pending : INT_MAX;
1883 int SSL_has_pending(const SSL *s)
1885 #ifndef OPENSSL_NO_QUIC
1886 const QUIC_CONNECTION *qc = QUIC_CONNECTION_FROM_SSL(s);
1890 * Similar to SSL_pending() but returns a 1 to indicate that we have
1891 * processed or unprocessed data available or 0 otherwise (as opposed to the
1892 * number of bytes available). Unlike SSL_pending() this will take into
1893 * account read_ahead data. A 1 return simply indicates that we have data.
1894 * That data may not result in any application data, or we may fail to parse
1895 * the records for some reason.
1897 const SSL_CONNECTION *sc;
1899 #ifndef OPENSSL_NO_QUIC
1901 return ossl_quic_has_pending(s);
1904 sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1906 #ifndef OPENSSL_NO_QUIC
1908 return ossl_quic_has_pending(qc);
1911 /* Check buffered app data if any first */
1912 if (SSL_CONNECTION_IS_DTLS(sc)) {
1916 iter = pqueue_iterator(sc->rlayer.d->buffered_app_data.q);
1917 while ((item = pqueue_next(&iter)) != NULL) {
1919 if (rdata->length > 0)
1924 if (RECORD_LAYER_processed_read_pending(&sc->rlayer))
1927 return RECORD_LAYER_read_pending(&sc->rlayer);
1930 X509 *SSL_get1_peer_certificate(const SSL *s)
1932 X509 *r = SSL_get0_peer_certificate(s);
1940 X509 *SSL_get0_peer_certificate(const SSL *s)
1942 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1947 if (sc->session == NULL)
1950 return sc->session->peer;
1953 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
1956 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1961 if (sc->session == NULL)
1964 r = sc->session->peer_chain;
1967 * If we are a client, cert_chain includes the peer's own certificate; if
1968 * we are a server, it does not.
1975 * Now in theory, since the calling process own 't' it should be safe to
1976 * modify. We need to be able to read f without being hassled
1978 int SSL_copy_session_id(SSL *t, const SSL *f)
1981 /* TODO(QUIC): Do we want to support this for QUIC connections? */
1982 SSL_CONNECTION *tsc = SSL_CONNECTION_FROM_SSL_ONLY(t);
1983 const SSL_CONNECTION *fsc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(f);
1985 if (tsc == NULL || fsc == NULL)
1988 /* Do we need to do SSL locking? */
1989 if (!SSL_set_session(t, SSL_get_session(f))) {
1994 * what if we are setup for one protocol version but want to talk another
1996 if (t->method != f->method) {
1997 t->method->ssl_deinit(t);
1998 t->method = f->method;
1999 if (t->method->ssl_init(t) == 0)
2003 CRYPTO_UP_REF(&fsc->cert->references, &i);
2004 ssl_cert_free(tsc->cert);
2005 tsc->cert = fsc->cert;
2006 if (!SSL_set_session_id_context(t, fsc->sid_ctx, (int)fsc->sid_ctx_length)) {
2013 /* Fix this so it checks all the valid key/cert options */
2014 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
2016 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
2017 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
2020 if (ctx->cert->key->privatekey == NULL) {
2021 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
2024 return X509_check_private_key
2025 (ctx->cert->key->x509, ctx->cert->key->privatekey);
2028 /* Fix this function so that it takes an optional type parameter */
2029 int SSL_check_private_key(const SSL *ssl)
2031 const SSL_CONNECTION *sc;
2033 if ((sc = SSL_CONNECTION_FROM_CONST_SSL(ssl)) == NULL) {
2034 ERR_raise(ERR_LIB_SSL, ERR_R_PASSED_NULL_PARAMETER);
2037 if (sc->cert->key->x509 == NULL) {
2038 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
2041 if (sc->cert->key->privatekey == NULL) {
2042 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
2045 return X509_check_private_key(sc->cert->key->x509,
2046 sc->cert->key->privatekey);
2049 int SSL_waiting_for_async(SSL *s)
2051 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2062 int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
2064 ASYNC_WAIT_CTX *ctx;
2065 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2070 if ((ctx = sc->waitctx) == NULL)
2072 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
2075 int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
2076 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
2078 ASYNC_WAIT_CTX *ctx;
2079 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2084 if ((ctx = sc->waitctx) == NULL)
2086 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
2090 int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback)
2092 ctx->async_cb = callback;
2096 int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg)
2098 ctx->async_cb_arg = arg;
2102 int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback)
2104 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2109 sc->async_cb = callback;
2113 int SSL_set_async_callback_arg(SSL *s, void *arg)
2115 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2120 sc->async_cb_arg = arg;
2124 int SSL_get_async_status(SSL *s, int *status)
2126 ASYNC_WAIT_CTX *ctx;
2127 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2132 if ((ctx = sc->waitctx) == NULL)
2134 *status = ASYNC_WAIT_CTX_get_status(ctx);
2138 int SSL_accept(SSL *s)
2140 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2142 #ifndef OPENSSL_NO_QUIC
2144 return s->method->ssl_accept(s);
2150 if (sc->handshake_func == NULL) {
2151 /* Not properly initialized yet */
2152 SSL_set_accept_state(s);
2155 return SSL_do_handshake(s);
2158 int SSL_connect(SSL *s)
2160 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2162 #ifndef OPENSSL_NO_QUIC
2164 return s->method->ssl_connect(s);
2170 if (sc->handshake_func == NULL) {
2171 /* Not properly initialized yet */
2172 SSL_set_connect_state(s);
2175 return SSL_do_handshake(s);
2178 long SSL_get_default_timeout(const SSL *s)
2180 return (long int)ossl_time2seconds(s->method->get_timeout());
2183 static int ssl_async_wait_ctx_cb(void *arg)
2185 SSL *s = (SSL *)arg;
2186 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2191 return sc->async_cb(s, sc->async_cb_arg);
2194 static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
2195 int (*func) (void *))
2198 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2203 if (sc->waitctx == NULL) {
2204 sc->waitctx = ASYNC_WAIT_CTX_new();
2205 if (sc->waitctx == NULL)
2207 if (sc->async_cb != NULL
2208 && !ASYNC_WAIT_CTX_set_callback
2209 (sc->waitctx, ssl_async_wait_ctx_cb, s))
2213 sc->rwstate = SSL_NOTHING;
2214 switch (ASYNC_start_job(&sc->job, sc->waitctx, &ret, func, args,
2215 sizeof(struct ssl_async_args))) {
2217 sc->rwstate = SSL_NOTHING;
2218 ERR_raise(ERR_LIB_SSL, SSL_R_FAILED_TO_INIT_ASYNC);
2221 sc->rwstate = SSL_ASYNC_PAUSED;
2224 sc->rwstate = SSL_ASYNC_NO_JOBS;
2230 sc->rwstate = SSL_NOTHING;
2231 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
2232 /* Shouldn't happen */
2237 static int ssl_io_intern(void *vargs)
2239 struct ssl_async_args *args;
2245 args = (struct ssl_async_args *)vargs;
2249 if ((sc = SSL_CONNECTION_FROM_SSL(s)) == NULL)
2252 switch (args->type) {
2254 return args->f.func_read(s, buf, num, &sc->asyncrw);
2256 return args->f.func_write(s, buf, num, &sc->asyncrw);
2258 return args->f.func_other(s);
2263 int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2265 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2267 #ifndef OPENSSL_NO_QUIC
2269 return s->method->ssl_read(s, buf, num, readbytes);
2275 if (sc->handshake_func == NULL) {
2276 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2280 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2281 sc->rwstate = SSL_NOTHING;
2285 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2286 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
2287 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2291 * If we are a client and haven't received the ServerHello etc then we
2294 ossl_statem_check_finish_init(sc, 0);
2296 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2297 struct ssl_async_args args;
2303 args.type = READFUNC;
2304 args.f.func_read = s->method->ssl_read;
2306 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2307 *readbytes = sc->asyncrw;
2310 return s->method->ssl_read(s, buf, num, readbytes);
2314 int SSL_read(SSL *s, void *buf, int num)
2320 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2324 ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
2327 * The cast is safe here because ret should be <= INT_MAX because num is
2331 ret = (int)readbytes;
2336 int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2338 int ret = ssl_read_internal(s, buf, num, readbytes);
2345 int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
2348 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2354 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2355 return SSL_READ_EARLY_DATA_ERROR;
2358 switch (sc->early_data_state) {
2359 case SSL_EARLY_DATA_NONE:
2360 if (!SSL_in_before(s)) {
2361 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2362 return SSL_READ_EARLY_DATA_ERROR;
2366 case SSL_EARLY_DATA_ACCEPT_RETRY:
2367 sc->early_data_state = SSL_EARLY_DATA_ACCEPTING;
2368 ret = SSL_accept(s);
2371 sc->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
2372 return SSL_READ_EARLY_DATA_ERROR;
2376 case SSL_EARLY_DATA_READ_RETRY:
2377 if (sc->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
2378 sc->early_data_state = SSL_EARLY_DATA_READING;
2379 ret = SSL_read_ex(s, buf, num, readbytes);
2381 * State machine will update early_data_state to
2382 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
2385 if (ret > 0 || (ret <= 0 && sc->early_data_state
2386 != SSL_EARLY_DATA_FINISHED_READING)) {
2387 sc->early_data_state = SSL_EARLY_DATA_READ_RETRY;
2388 return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
2389 : SSL_READ_EARLY_DATA_ERROR;
2392 sc->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
2395 return SSL_READ_EARLY_DATA_FINISH;
2398 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2399 return SSL_READ_EARLY_DATA_ERROR;
2403 int SSL_get_early_data_status(const SSL *s)
2405 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
2410 return sc->ext.early_data;
2413 static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2415 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2417 #ifndef OPENSSL_NO_QUIC
2419 return s->method->ssl_peek(s, buf, num, readbytes);
2425 if (sc->handshake_func == NULL) {
2426 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2430 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2433 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2434 struct ssl_async_args args;
2440 args.type = READFUNC;
2441 args.f.func_read = s->method->ssl_peek;
2443 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2444 *readbytes = sc->asyncrw;
2447 return s->method->ssl_peek(s, buf, num, readbytes);
2451 int SSL_peek(SSL *s, void *buf, int num)
2457 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2461 ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
2464 * The cast is safe here because ret should be <= INT_MAX because num is
2468 ret = (int)readbytes;
2474 int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2476 int ret = ssl_peek_internal(s, buf, num, readbytes);
2483 int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written)
2485 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2487 #ifndef OPENSSL_NO_QUIC
2489 return s->method->ssl_write(s, buf, num, written);
2495 if (sc->handshake_func == NULL) {
2496 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2500 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2501 sc->rwstate = SSL_NOTHING;
2502 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2506 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2507 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
2508 || sc->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
2509 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2512 /* If we are a client and haven't sent the Finished we better do that */
2513 ossl_statem_check_finish_init(sc, 1);
2515 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2517 struct ssl_async_args args;
2520 args.buf = (void *)buf;
2522 args.type = WRITEFUNC;
2523 args.f.func_write = s->method->ssl_write;
2525 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2526 *written = sc->asyncrw;
2529 return s->method->ssl_write(s, buf, num, written);
2533 ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size, int flags)
2536 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2541 if (sc->handshake_func == NULL) {
2542 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2546 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2547 sc->rwstate = SSL_NOTHING;
2548 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2552 if (!BIO_get_ktls_send(sc->wbio)) {
2553 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2557 /* If we have an alert to send, lets send it */
2558 if (sc->s3.alert_dispatch > 0) {
2559 ret = (ossl_ssize_t)s->method->ssl_dispatch_alert(s);
2561 /* SSLfatal() already called if appropriate */
2564 /* if it went, fall through and send more stuff */
2567 sc->rwstate = SSL_WRITING;
2568 if (BIO_flush(sc->wbio) <= 0) {
2569 if (!BIO_should_retry(sc->wbio)) {
2570 sc->rwstate = SSL_NOTHING;
2573 set_sys_error(EAGAIN);
2579 #ifdef OPENSSL_NO_KTLS
2580 ERR_raise_data(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR,
2581 "can't call ktls_sendfile(), ktls disabled");
2584 ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags);
2586 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2587 if ((get_last_sys_error() == EAGAIN) ||
2588 (get_last_sys_error() == EINTR) ||
2589 (get_last_sys_error() == EBUSY))
2590 BIO_set_retry_write(sc->wbio);
2593 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2596 sc->rwstate = SSL_NOTHING;
2601 int SSL_write(SSL *s, const void *buf, int num)
2607 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2611 ret = ssl_write_internal(s, buf, (size_t)num, &written);
2614 * The cast is safe here because ret should be <= INT_MAX because num is
2623 int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
2625 int ret = ssl_write_internal(s, buf, num, written);
2632 int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
2634 int ret, early_data_state;
2636 uint32_t partialwrite;
2637 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2639 /* TODO(QUIC): This will need special handling for QUIC */
2643 switch (sc->early_data_state) {
2644 case SSL_EARLY_DATA_NONE:
2646 || !SSL_in_before(s)
2647 || ((sc->session == NULL || sc->session->ext.max_early_data == 0)
2648 && (sc->psk_use_session_cb == NULL))) {
2649 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2654 case SSL_EARLY_DATA_CONNECT_RETRY:
2655 sc->early_data_state = SSL_EARLY_DATA_CONNECTING;
2656 ret = SSL_connect(s);
2659 sc->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
2664 case SSL_EARLY_DATA_WRITE_RETRY:
2665 sc->early_data_state = SSL_EARLY_DATA_WRITING;
2667 * We disable partial write for early data because we don't keep track
2668 * of how many bytes we've written between the SSL_write_ex() call and
2669 * the flush if the flush needs to be retried)
2671 partialwrite = sc->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
2672 sc->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
2673 ret = SSL_write_ex(s, buf, num, &writtmp);
2674 sc->mode |= partialwrite;
2676 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2679 sc->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
2682 case SSL_EARLY_DATA_WRITE_FLUSH:
2683 /* The buffering BIO is still in place so we need to flush it */
2684 if (statem_flush(sc) != 1)
2687 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2690 case SSL_EARLY_DATA_FINISHED_READING:
2691 case SSL_EARLY_DATA_READ_RETRY:
2692 early_data_state = sc->early_data_state;
2693 /* We are a server writing to an unauthenticated client */
2694 sc->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
2695 ret = SSL_write_ex(s, buf, num, written);
2696 /* The buffering BIO is still in place */
2698 (void)BIO_flush(sc->wbio);
2699 sc->early_data_state = early_data_state;
2703 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2708 int SSL_shutdown(SSL *s)
2711 * Note that this function behaves differently from what one might
2712 * expect. Return values are 0 for no success (yet), 1 for success; but
2713 * calling it once is usually not enough, even if blocking I/O is used
2714 * (see ssl3_shutdown).
2716 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2718 #ifndef OPENSSL_NO_QUIC
2720 return ossl_quic_conn_shutdown(s, 0, NULL, 0);
2726 if (sc->handshake_func == NULL) {
2727 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2731 if (!SSL_in_init(s)) {
2732 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2733 struct ssl_async_args args;
2735 memset(&args, 0, sizeof(args));
2737 args.type = OTHERFUNC;
2738 args.f.func_other = s->method->ssl_shutdown;
2740 return ssl_start_async_job(s, &args, ssl_io_intern);
2742 return s->method->ssl_shutdown(s);
2745 ERR_raise(ERR_LIB_SSL, SSL_R_SHUTDOWN_WHILE_IN_INIT);
2750 int SSL_key_update(SSL *s, int updatetype)
2752 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2754 #ifndef OPENSSL_NO_QUIC
2756 return ossl_quic_key_update(s, updatetype);
2762 if (!SSL_CONNECTION_IS_TLS13(sc)) {
2763 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2767 if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
2768 && updatetype != SSL_KEY_UPDATE_REQUESTED) {
2769 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_KEY_UPDATE_TYPE);
2773 if (!SSL_is_init_finished(s)) {
2774 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
2778 if (RECORD_LAYER_write_pending(&sc->rlayer)) {
2779 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_WRITE_RETRY);
2783 ossl_statem_set_in_init(sc, 1);
2784 sc->key_update = updatetype;
2788 int SSL_get_key_update_type(const SSL *s)
2790 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
2792 #ifndef OPENSSL_NO_QUIC
2794 return ossl_quic_get_key_update_type(s);
2800 return sc->key_update;
2804 * Can we accept a renegotiation request? If yes, set the flag and
2805 * return 1 if yes. If not, raise error and return 0.
2807 static int can_renegotiate(const SSL_CONNECTION *sc)
2809 if (SSL_CONNECTION_IS_TLS13(sc)) {
2810 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2814 if ((sc->options & SSL_OP_NO_RENEGOTIATION) != 0) {
2815 ERR_raise(ERR_LIB_SSL, SSL_R_NO_RENEGOTIATION);
2822 int SSL_renegotiate(SSL *s)
2824 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2829 if (!can_renegotiate(sc))
2832 sc->renegotiate = 1;
2833 sc->new_session = 1;
2834 return s->method->ssl_renegotiate(s);
2837 int SSL_renegotiate_abbreviated(SSL *s)
2839 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2844 if (!can_renegotiate(sc))
2847 sc->renegotiate = 1;
2848 sc->new_session = 0;
2849 return s->method->ssl_renegotiate(s);
2852 int SSL_renegotiate_pending(const SSL *s)
2854 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2860 * becomes true when negotiation is requested; false again once a
2861 * handshake has finished
2863 return (sc->renegotiate != 0);
2866 int SSL_new_session_ticket(SSL *s)
2868 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2873 /* If we are in init because we're sending tickets, okay to send more. */
2874 if ((SSL_in_init(s) && sc->ext.extra_tickets_expected == 0)
2875 || SSL_IS_FIRST_HANDSHAKE(sc) || !sc->server
2876 || !SSL_CONNECTION_IS_TLS13(sc))
2878 sc->ext.extra_tickets_expected++;
2879 if (!RECORD_LAYER_write_pending(&sc->rlayer) && !SSL_in_init(s))
2880 ossl_statem_set_in_init(sc, 1);
2884 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
2887 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2889 /* TODO(QUIC): Special handling for some ctrls will be needed */
2894 case SSL_CTRL_GET_READ_AHEAD:
2897 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
2898 case SSL_CTRL_SET_READ_AHEAD:
2901 l = RECORD_LAYER_get_read_ahead(&sc->rlayer);
2902 RECORD_LAYER_set_read_ahead(&sc->rlayer, larg);
2907 OSSL_PARAM options[2], *opts = options;
2911 *opts++ = OSSL_PARAM_construct_uint32(OSSL_LIBSSL_RECORD_LAYER_PARAM_MODE,
2913 *opts = OSSL_PARAM_construct_end();
2915 /* Ignore return value */
2916 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
2920 case SSL_CTRL_CLEAR_MODE:
2921 return (sc->mode &= ~larg);
2922 case SSL_CTRL_GET_MAX_CERT_LIST:
2923 return (long)sc->max_cert_list;
2924 case SSL_CTRL_SET_MAX_CERT_LIST:
2927 l = (long)sc->max_cert_list;
2928 sc->max_cert_list = (size_t)larg;
2930 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2931 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2933 #ifndef OPENSSL_NO_KTLS
2934 if (sc->wbio != NULL && BIO_get_ktls_send(sc->wbio))
2936 #endif /* OPENSSL_NO_KTLS */
2937 sc->max_send_fragment = larg;
2938 if (sc->max_send_fragment < sc->split_send_fragment)
2939 sc->split_send_fragment = sc->max_send_fragment;
2940 sc->rlayer.wrlmethod->set_max_frag_len(sc->rlayer.wrl, larg);
2942 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2943 if ((size_t)larg > sc->max_send_fragment || larg == 0)
2945 sc->split_send_fragment = larg;
2947 case SSL_CTRL_SET_MAX_PIPELINES:
2948 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2950 sc->max_pipelines = larg;
2951 if (sc->rlayer.rrlmethod->set_max_pipelines != NULL)
2952 sc->rlayer.rrlmethod->set_max_pipelines(sc->rlayer.rrl, (size_t)larg);
2954 case SSL_CTRL_GET_RI_SUPPORT:
2955 return sc->s3.send_connection_binding;
2956 case SSL_CTRL_SET_RETRY_VERIFY:
2957 sc->rwstate = SSL_RETRY_VERIFY;
2959 case SSL_CTRL_CERT_FLAGS:
2960 return (sc->cert->cert_flags |= larg);
2961 case SSL_CTRL_CLEAR_CERT_FLAGS:
2962 return (sc->cert->cert_flags &= ~larg);
2964 case SSL_CTRL_GET_RAW_CIPHERLIST:
2966 if (sc->s3.tmp.ciphers_raw == NULL)
2968 *(unsigned char **)parg = sc->s3.tmp.ciphers_raw;
2969 return (int)sc->s3.tmp.ciphers_rawlen;
2971 return TLS_CIPHER_LEN;
2973 case SSL_CTRL_GET_EXTMS_SUPPORT:
2974 if (!sc->session || SSL_in_init(s) || ossl_statem_get_in_handshake(sc))
2976 if (sc->session->flags & SSL_SESS_FLAG_EXTMS)
2980 case SSL_CTRL_SET_MIN_PROTO_VERSION:
2981 return ssl_check_allowed_versions(larg, sc->max_proto_version)
2982 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
2983 &sc->min_proto_version);
2984 case SSL_CTRL_GET_MIN_PROTO_VERSION:
2985 return sc->min_proto_version;
2986 case SSL_CTRL_SET_MAX_PROTO_VERSION:
2987 return ssl_check_allowed_versions(sc->min_proto_version, larg)
2988 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
2989 &sc->max_proto_version);
2990 case SSL_CTRL_GET_MAX_PROTO_VERSION:
2991 return sc->max_proto_version;
2993 return s->method->ssl_ctrl(s, cmd, larg, parg);
2997 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
2999 return s->method->ssl_callback_ctrl(s, cmd, fp);
3002 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
3004 return ctx->sessions;
3007 static int ssl_tsan_load(SSL_CTX *ctx, TSAN_QUALIFIER int *stat)
3011 if (ssl_tsan_lock(ctx)) {
3012 res = tsan_load(stat);
3013 ssl_tsan_unlock(ctx);
3018 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
3021 /* For some cases with ctx == NULL perform syntax checks */
3024 case SSL_CTRL_SET_GROUPS_LIST:
3025 return tls1_set_groups_list(ctx, NULL, NULL, parg);
3026 case SSL_CTRL_SET_SIGALGS_LIST:
3027 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
3028 return tls1_set_sigalgs_list(NULL, parg, 0);
3035 case SSL_CTRL_GET_READ_AHEAD:
3036 return ctx->read_ahead;
3037 case SSL_CTRL_SET_READ_AHEAD:
3038 l = ctx->read_ahead;
3039 ctx->read_ahead = larg;
3042 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
3043 ctx->msg_callback_arg = parg;
3046 case SSL_CTRL_GET_MAX_CERT_LIST:
3047 return (long)ctx->max_cert_list;
3048 case SSL_CTRL_SET_MAX_CERT_LIST:
3051 l = (long)ctx->max_cert_list;
3052 ctx->max_cert_list = (size_t)larg;
3055 case SSL_CTRL_SET_SESS_CACHE_SIZE:
3058 l = (long)ctx->session_cache_size;
3059 ctx->session_cache_size = (size_t)larg;
3061 case SSL_CTRL_GET_SESS_CACHE_SIZE:
3062 return (long)ctx->session_cache_size;
3063 case SSL_CTRL_SET_SESS_CACHE_MODE:
3064 l = ctx->session_cache_mode;
3065 ctx->session_cache_mode = larg;
3067 case SSL_CTRL_GET_SESS_CACHE_MODE:
3068 return ctx->session_cache_mode;
3070 case SSL_CTRL_SESS_NUMBER:
3071 return lh_SSL_SESSION_num_items(ctx->sessions);
3072 case SSL_CTRL_SESS_CONNECT:
3073 return ssl_tsan_load(ctx, &ctx->stats.sess_connect);
3074 case SSL_CTRL_SESS_CONNECT_GOOD:
3075 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_good);
3076 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
3077 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_renegotiate);
3078 case SSL_CTRL_SESS_ACCEPT:
3079 return ssl_tsan_load(ctx, &ctx->stats.sess_accept);
3080 case SSL_CTRL_SESS_ACCEPT_GOOD:
3081 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_good);
3082 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
3083 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_renegotiate);
3084 case SSL_CTRL_SESS_HIT:
3085 return ssl_tsan_load(ctx, &ctx->stats.sess_hit);
3086 case SSL_CTRL_SESS_CB_HIT:
3087 return ssl_tsan_load(ctx, &ctx->stats.sess_cb_hit);
3088 case SSL_CTRL_SESS_MISSES:
3089 return ssl_tsan_load(ctx, &ctx->stats.sess_miss);
3090 case SSL_CTRL_SESS_TIMEOUTS:
3091 return ssl_tsan_load(ctx, &ctx->stats.sess_timeout);
3092 case SSL_CTRL_SESS_CACHE_FULL:
3093 return ssl_tsan_load(ctx, &ctx->stats.sess_cache_full);
3095 return (ctx->mode |= larg);
3096 case SSL_CTRL_CLEAR_MODE:
3097 return (ctx->mode &= ~larg);
3098 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
3099 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
3101 ctx->max_send_fragment = larg;
3102 if (ctx->max_send_fragment < ctx->split_send_fragment)
3103 ctx->split_send_fragment = ctx->max_send_fragment;
3105 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
3106 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
3108 ctx->split_send_fragment = larg;
3110 case SSL_CTRL_SET_MAX_PIPELINES:
3111 if (larg < 1 || larg > SSL_MAX_PIPELINES)
3113 ctx->max_pipelines = larg;
3115 case SSL_CTRL_CERT_FLAGS:
3116 return (ctx->cert->cert_flags |= larg);
3117 case SSL_CTRL_CLEAR_CERT_FLAGS:
3118 return (ctx->cert->cert_flags &= ~larg);
3119 case SSL_CTRL_SET_MIN_PROTO_VERSION:
3120 return ssl_check_allowed_versions(larg, ctx->max_proto_version)
3121 && ssl_set_version_bound(ctx->method->version, (int)larg,
3122 &ctx->min_proto_version);
3123 case SSL_CTRL_GET_MIN_PROTO_VERSION:
3124 return ctx->min_proto_version;
3125 case SSL_CTRL_SET_MAX_PROTO_VERSION:
3126 return ssl_check_allowed_versions(ctx->min_proto_version, larg)
3127 && ssl_set_version_bound(ctx->method->version, (int)larg,
3128 &ctx->max_proto_version);
3129 case SSL_CTRL_GET_MAX_PROTO_VERSION:
3130 return ctx->max_proto_version;
3132 return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
3136 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
3139 case SSL_CTRL_SET_MSG_CALLBACK:
3140 ctx->msg_callback = (void (*)
3141 (int write_p, int version, int content_type,
3142 const void *buf, size_t len, SSL *ssl,
3147 return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
3151 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
3160 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
3161 const SSL_CIPHER *const *bp)
3163 if ((*ap)->id > (*bp)->id)
3165 if ((*ap)->id < (*bp)->id)
3171 * return a STACK of the ciphers available for the SSL and in order of
3174 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
3176 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3179 if (sc->cipher_list != NULL) {
3180 return sc->cipher_list;
3181 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
3182 return s->ctx->cipher_list;
3188 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
3190 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3192 if (sc == NULL || !sc->server)
3194 return sc->peer_ciphers;
3197 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
3199 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
3201 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3206 ciphers = SSL_get_ciphers(s);
3209 if (!ssl_set_client_disabled(sc))
3211 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
3212 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
3213 if (!ssl_cipher_disabled(sc, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
3215 sk = sk_SSL_CIPHER_new_null();
3218 if (!sk_SSL_CIPHER_push(sk, c)) {
3219 sk_SSL_CIPHER_free(sk);
3227 /** return a STACK of the ciphers available for the SSL and in order of
3229 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL_CONNECTION *s)
3232 if (s->cipher_list_by_id != NULL)
3233 return s->cipher_list_by_id;
3234 else if (s->ssl.ctx != NULL
3235 && s->ssl.ctx->cipher_list_by_id != NULL)
3236 return s->ssl.ctx->cipher_list_by_id;
3241 /** The old interface to get the same thing as SSL_get_ciphers() */
3242 const char *SSL_get_cipher_list(const SSL *s, int n)
3244 const SSL_CIPHER *c;
3245 STACK_OF(SSL_CIPHER) *sk;
3249 sk = SSL_get_ciphers(s);
3250 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
3252 c = sk_SSL_CIPHER_value(sk, n);
3258 /** return a STACK of the ciphers available for the SSL_CTX and in order of
3260 STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
3263 return ctx->cipher_list;
3268 * Distinguish between ciphers controlled by set_ciphersuite() and
3269 * set_cipher_list() when counting.
3271 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
3274 const SSL_CIPHER *c;
3278 for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
3279 c = sk_SSL_CIPHER_value(sk, i);
3280 if (c->min_tls >= TLS1_3_VERSION)
3287 /** specify the ciphers to be used by default by the SSL_CTX */
3288 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
3290 STACK_OF(SSL_CIPHER) *sk;
3292 sk = ssl_create_cipher_list(ctx, ctx->tls13_ciphersuites,
3293 &ctx->cipher_list, &ctx->cipher_list_by_id, str,
3296 * ssl_create_cipher_list may return an empty stack if it was unable to
3297 * find a cipher matching the given rule string (for example if the rule
3298 * string specifies a cipher which has been disabled). This is not an
3299 * error as far as ssl_create_cipher_list is concerned, and hence
3300 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
3304 else if (cipher_list_tls12_num(sk) == 0) {
3305 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3311 /** specify the ciphers to be used by the SSL */
3312 int SSL_set_cipher_list(SSL *s, const char *str)
3314 STACK_OF(SSL_CIPHER) *sk;
3315 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3320 sk = ssl_create_cipher_list(s->ctx, sc->tls13_ciphersuites,
3321 &sc->cipher_list, &sc->cipher_list_by_id, str,
3323 /* see comment in SSL_CTX_set_cipher_list */
3326 else if (cipher_list_tls12_num(sk) == 0) {
3327 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3333 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
3336 STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
3337 const SSL_CIPHER *c;
3339 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3345 || sc->peer_ciphers == NULL
3350 clntsk = sc->peer_ciphers;
3351 srvrsk = SSL_get_ciphers(s);
3352 if (clntsk == NULL || srvrsk == NULL)
3355 if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
3358 for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
3361 c = sk_SSL_CIPHER_value(clntsk, i);
3362 if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
3365 n = strlen(c->name);
3382 * Return the requested servername (SNI) value. Note that the behaviour varies
3384 * - whether this is called by the client or the server,
3385 * - if we are before or during/after the handshake,
3386 * - if a resumption or normal handshake is being attempted/has occurred
3387 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
3389 * Note that only the host_name type is defined (RFC 3546).
3391 const char *SSL_get_servername(const SSL *s, const int type)
3393 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3400 * If we don't know if we are the client or the server yet then we assume
3403 server = sc->handshake_func == NULL ? 0 : sc->server;
3405 if (type != TLSEXT_NAMETYPE_host_name)
3411 * In TLSv1.3 on the server SNI is not associated with the session
3412 * but in TLSv1.2 or below it is.
3414 * Before the handshake:
3417 * During/after the handshake (TLSv1.2 or below resumption occurred):
3418 * - If a servername was accepted by the server in the original
3419 * handshake then it will return that servername, or NULL otherwise.
3421 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3422 * - The function will return the servername requested by the client in
3423 * this handshake or NULL if none was requested.
3425 if (sc->hit && !SSL_CONNECTION_IS_TLS13(sc))
3426 return sc->session->ext.hostname;
3431 * Before the handshake:
3432 * - If a servername has been set via a call to
3433 * SSL_set_tlsext_host_name() then it will return that servername
3434 * - If one has not been set, but a TLSv1.2 resumption is being
3435 * attempted and the session from the original handshake had a
3436 * servername accepted by the server then it will return that
3438 * - Otherwise it returns NULL
3440 * During/after the handshake (TLSv1.2 or below resumption occurred):
3441 * - If the session from the original handshake had a servername accepted
3442 * by the server then it will return that servername.
3443 * - Otherwise it returns the servername set via
3444 * SSL_set_tlsext_host_name() (or NULL if it was not called).
3446 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3447 * - It will return the servername set via SSL_set_tlsext_host_name()
3448 * (or NULL if it was not called).
3450 if (SSL_in_before(s)) {
3451 if (sc->ext.hostname == NULL
3452 && sc->session != NULL
3453 && sc->session->ssl_version != TLS1_3_VERSION)
3454 return sc->session->ext.hostname;
3456 if (!SSL_CONNECTION_IS_TLS13(sc) && sc->hit
3457 && sc->session->ext.hostname != NULL)
3458 return sc->session->ext.hostname;
3462 return sc->ext.hostname;
3465 int SSL_get_servername_type(const SSL *s)
3467 if (SSL_get_servername(s, TLSEXT_NAMETYPE_host_name) != NULL)
3468 return TLSEXT_NAMETYPE_host_name;
3473 * SSL_select_next_proto implements the standard protocol selection. It is
3474 * expected that this function is called from the callback set by
3475 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
3476 * vector of 8-bit, length prefixed byte strings. The length byte itself is
3477 * not included in the length. A byte string of length 0 is invalid. No byte
3478 * string may be truncated. The current, but experimental algorithm for
3479 * selecting the protocol is: 1) If the server doesn't support NPN then this
3480 * is indicated to the callback. In this case, the client application has to
3481 * abort the connection or have a default application level protocol. 2) If
3482 * the server supports NPN, but advertises an empty list then the client
3483 * selects the first protocol in its list, but indicates via the API that this
3484 * fallback case was enacted. 3) Otherwise, the client finds the first
3485 * protocol in the server's list that it supports and selects this protocol.
3486 * This is because it's assumed that the server has better information about
3487 * which protocol a client should use. 4) If the client doesn't support any
3488 * of the server's advertised protocols, then this is treated the same as
3489 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
3490 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
3492 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
3493 const unsigned char *server,
3494 unsigned int server_len,
3495 const unsigned char *client, unsigned int client_len)
3498 const unsigned char *result;
3499 int status = OPENSSL_NPN_UNSUPPORTED;
3502 * For each protocol in server preference order, see if we support it.
3504 for (i = 0; i < server_len;) {
3505 for (j = 0; j < client_len;) {
3506 if (server[i] == client[j] &&
3507 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
3508 /* We found a match */
3509 result = &server[i];
3510 status = OPENSSL_NPN_NEGOTIATED;
3520 /* There's no overlap between our protocols and the server's list. */
3522 status = OPENSSL_NPN_NO_OVERLAP;
3525 *out = (unsigned char *)result + 1;
3526 *outlen = result[0];
3530 #ifndef OPENSSL_NO_NEXTPROTONEG
3532 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
3533 * client's requested protocol for this connection and returns 0. If the
3534 * client didn't request any protocol, then *data is set to NULL. Note that
3535 * the client can request any protocol it chooses. The value returned from
3536 * this function need not be a member of the list of supported protocols
3537 * provided by the callback.
3539 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
3542 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3545 /* We have no other way to indicate error */
3551 *data = sc->ext.npn;
3552 if (*data == NULL) {
3555 *len = (unsigned int)sc->ext.npn_len;
3560 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
3561 * a TLS server needs a list of supported protocols for Next Protocol
3562 * Negotiation. The returned list must be in wire format. The list is
3563 * returned by setting |out| to point to it and |outlen| to its length. This
3564 * memory will not be modified, but one should assume that the SSL* keeps a
3565 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
3566 * wishes to advertise. Otherwise, no such extension will be included in the
3569 void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
3570 SSL_CTX_npn_advertised_cb_func cb,
3573 if (IS_QUIC_CTX(ctx))
3574 /* NPN not allowed for QUIC */
3577 ctx->ext.npn_advertised_cb = cb;
3578 ctx->ext.npn_advertised_cb_arg = arg;
3582 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
3583 * client needs to select a protocol from the server's provided list. |out|
3584 * must be set to point to the selected protocol (which may be within |in|).
3585 * The length of the protocol name must be written into |outlen|. The
3586 * server's advertised protocols are provided in |in| and |inlen|. The
3587 * callback can assume that |in| is syntactically valid. The client must
3588 * select a protocol. It is fatal to the connection if this callback returns
3589 * a value other than SSL_TLSEXT_ERR_OK.
3591 void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
3592 SSL_CTX_npn_select_cb_func cb,
3595 if (IS_QUIC_CTX(ctx))
3596 /* NPN not allowed for QUIC */
3599 ctx->ext.npn_select_cb = cb;
3600 ctx->ext.npn_select_cb_arg = arg;
3604 static int alpn_value_ok(const unsigned char *protos, unsigned int protos_len)
3608 if (protos_len < 2 || protos == NULL)
3611 for (idx = 0; idx < protos_len; idx += protos[idx] + 1) {
3612 if (protos[idx] == 0)
3615 return idx == protos_len;
3618 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
3619 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3620 * length-prefixed strings). Returns 0 on success.
3622 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
3623 unsigned int protos_len)
3625 unsigned char *alpn;
3627 if (protos_len == 0 || protos == NULL) {
3628 OPENSSL_free(ctx->ext.alpn);
3629 ctx->ext.alpn = NULL;
3630 ctx->ext.alpn_len = 0;
3633 /* Not valid per RFC */
3634 if (!alpn_value_ok(protos, protos_len))
3637 alpn = OPENSSL_memdup(protos, protos_len);
3640 OPENSSL_free(ctx->ext.alpn);
3641 ctx->ext.alpn = alpn;
3642 ctx->ext.alpn_len = protos_len;
3648 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
3649 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3650 * length-prefixed strings). Returns 0 on success.
3652 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
3653 unsigned int protos_len)
3655 unsigned char *alpn;
3656 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
3661 if (protos_len == 0 || protos == NULL) {
3662 OPENSSL_free(sc->ext.alpn);
3663 sc->ext.alpn = NULL;
3664 sc->ext.alpn_len = 0;
3667 /* Not valid per RFC */
3668 if (!alpn_value_ok(protos, protos_len))
3671 alpn = OPENSSL_memdup(protos, protos_len);
3674 OPENSSL_free(sc->ext.alpn);
3675 sc->ext.alpn = alpn;
3676 sc->ext.alpn_len = protos_len;
3682 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3683 * called during ClientHello processing in order to select an ALPN protocol
3684 * from the client's list of offered protocols.
3686 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
3687 SSL_CTX_alpn_select_cb_func cb,
3690 ctx->ext.alpn_select_cb = cb;
3691 ctx->ext.alpn_select_cb_arg = arg;
3695 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3696 * On return it sets |*data| to point to |*len| bytes of protocol name
3697 * (not including the leading length-prefix byte). If the server didn't
3698 * respond with a negotiated protocol then |*len| will be zero.
3700 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
3703 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
3706 /* We have no other way to indicate error */
3712 *data = sc->s3.alpn_selected;
3716 *len = (unsigned int)sc->s3.alpn_selected_len;
3719 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
3720 const char *label, size_t llen,
3721 const unsigned char *context, size_t contextlen,
3724 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3729 if (sc->session == NULL
3730 || (sc->version < TLS1_VERSION && sc->version != DTLS1_BAD_VER))
3733 return s->method->ssl3_enc->export_keying_material(sc, out, olen, label,
3735 contextlen, use_context);
3738 int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
3739 const char *label, size_t llen,
3740 const unsigned char *context,
3743 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3748 if (sc->version != TLS1_3_VERSION)
3751 return tls13_export_keying_material_early(sc, out, olen, label, llen,
3752 context, contextlen);
3755 static unsigned long ssl_session_hash(const SSL_SESSION *a)
3757 const unsigned char *session_id = a->session_id;
3759 unsigned char tmp_storage[4];
3761 if (a->session_id_length < sizeof(tmp_storage)) {
3762 memset(tmp_storage, 0, sizeof(tmp_storage));
3763 memcpy(tmp_storage, a->session_id, a->session_id_length);
3764 session_id = tmp_storage;
3768 ((unsigned long)session_id[0]) |
3769 ((unsigned long)session_id[1] << 8L) |
3770 ((unsigned long)session_id[2] << 16L) |
3771 ((unsigned long)session_id[3] << 24L);
3776 * NB: If this function (or indeed the hash function which uses a sort of
3777 * coarser function than this one) is changed, ensure
3778 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3779 * being able to construct an SSL_SESSION that will collide with any existing
3780 * session with a matching session ID.
3782 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
3784 if (a->ssl_version != b->ssl_version)
3786 if (a->session_id_length != b->session_id_length)
3788 return memcmp(a->session_id, b->session_id, a->session_id_length);
3792 * These wrapper functions should remain rather than redeclaring
3793 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3794 * variable. The reason is that the functions aren't static, they're exposed
3798 SSL_CTX *SSL_CTX_new_ex(OSSL_LIB_CTX *libctx, const char *propq,
3799 const SSL_METHOD *meth)
3801 SSL_CTX *ret = NULL;
3802 #ifndef OPENSSL_NO_COMP_ALG
3807 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_METHOD_PASSED);
3811 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
3814 /* Doing this for the run once effect */
3815 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3816 ERR_raise(ERR_LIB_SSL, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
3820 ret = OPENSSL_zalloc(sizeof(*ret));
3824 /* Init the reference counting before any call to SSL_CTX_free */
3825 if (!CRYPTO_NEW_REF(&ret->references, 1)) {
3830 ret->lock = CRYPTO_THREAD_lock_new();
3831 if (ret->lock == NULL) {
3832 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3836 #ifdef TSAN_REQUIRES_LOCKING
3837 ret->tsan_lock = CRYPTO_THREAD_lock_new();
3838 if (ret->tsan_lock == NULL) {
3839 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3844 ret->libctx = libctx;
3845 if (propq != NULL) {
3846 ret->propq = OPENSSL_strdup(propq);
3847 if (ret->propq == NULL)
3852 ret->min_proto_version = 0;
3853 ret->max_proto_version = 0;
3854 ret->mode = SSL_MODE_AUTO_RETRY;
3855 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
3856 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
3857 /* We take the system default. */
3858 ret->session_timeout = meth->get_timeout();
3859 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
3860 ret->verify_mode = SSL_VERIFY_NONE;
3862 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
3863 if (ret->sessions == NULL) {
3864 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3867 ret->cert_store = X509_STORE_new();
3868 if (ret->cert_store == NULL) {
3869 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3872 #ifndef OPENSSL_NO_CT
3873 ret->ctlog_store = CTLOG_STORE_new_ex(libctx, propq);
3874 if (ret->ctlog_store == NULL) {
3875 ERR_raise(ERR_LIB_SSL, ERR_R_CT_LIB);
3880 /* initialize cipher/digest methods table */
3881 if (!ssl_load_ciphers(ret)) {
3882 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3886 if (!ssl_load_groups(ret)) {
3887 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3891 /* load provider sigalgs */
3892 if (!ssl_load_sigalgs(ret)) {
3893 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3897 /* initialise sig algs */
3898 if (!ssl_setup_sigalgs(ret)) {
3899 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3903 if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites())) {
3904 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3908 if ((ret->cert = ssl_cert_new(SSL_PKEY_NUM + ret->sigalg_list_len)) == NULL) {
3909 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3913 if (!ssl_create_cipher_list(ret,
3914 ret->tls13_ciphersuites,
3915 &ret->cipher_list, &ret->cipher_list_by_id,
3916 OSSL_default_cipher_list(), ret->cert)
3917 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
3918 ERR_raise(ERR_LIB_SSL, SSL_R_LIBRARY_HAS_NO_CIPHERS);
3922 ret->param = X509_VERIFY_PARAM_new();
3923 if (ret->param == NULL) {
3924 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3929 * If these aren't available from the provider we'll get NULL returns.
3930 * That's fine but will cause errors later if SSLv3 is negotiated
3932 ret->md5 = ssl_evp_md_fetch(libctx, NID_md5, propq);
3933 ret->sha1 = ssl_evp_md_fetch(libctx, NID_sha1, propq);
3935 if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL) {
3936 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3940 if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL) {
3941 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3945 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) {
3946 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3950 if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
3953 /* No compression for DTLS */
3954 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
3955 ret->comp_methods = SSL_COMP_get_compression_methods();
3957 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3958 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3960 /* Setup RFC5077 ticket keys */
3961 if ((RAND_bytes_ex(libctx, ret->ext.tick_key_name,
3962 sizeof(ret->ext.tick_key_name), 0) <= 0)
3963 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_hmac_key,
3964 sizeof(ret->ext.secure->tick_hmac_key), 0) <= 0)
3965 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_aes_key,
3966 sizeof(ret->ext.secure->tick_aes_key), 0) <= 0))
3967 ret->options |= SSL_OP_NO_TICKET;
3969 if (RAND_priv_bytes_ex(libctx, ret->ext.cookie_hmac_key,
3970 sizeof(ret->ext.cookie_hmac_key), 0) <= 0) {
3971 ERR_raise(ERR_LIB_SSL, ERR_R_RAND_LIB);
3975 #ifndef OPENSSL_NO_SRP
3976 if (!ssl_ctx_srp_ctx_init_intern(ret)) {
3977 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3981 #ifndef OPENSSL_NO_ENGINE
3982 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3983 # define eng_strx(x) #x
3984 # define eng_str(x) eng_strx(x)
3985 /* Use specific client engine automatically... ignore errors */
3988 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3991 ENGINE_load_builtin_engines();
3992 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3994 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
4000 #ifndef OPENSSL_NO_COMP_ALG
4002 * Set the default order: brotli, zlib, zstd
4003 * Including only those enabled algorithms
4005 memset(ret->cert_comp_prefs, 0, sizeof(ret->cert_comp_prefs));
4007 if (ossl_comp_has_alg(TLSEXT_comp_cert_brotli))
4008 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_brotli;
4009 if (ossl_comp_has_alg(TLSEXT_comp_cert_zlib))
4010 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zlib;
4011 if (ossl_comp_has_alg(TLSEXT_comp_cert_zstd))
4012 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zstd;
4015 * Disable compression by default to prevent CRIME. Applications can
4016 * re-enable compression by configuring
4017 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
4018 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
4019 * middlebox compatibility by default. This may be disabled by default in
4020 * a later OpenSSL version.
4022 ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
4024 ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
4027 * We cannot usefully set a default max_early_data here (which gets
4028 * propagated in SSL_new(), for the following reason: setting the
4029 * SSL field causes tls_construct_stoc_early_data() to tell the
4030 * client that early data will be accepted when constructing a TLS 1.3
4031 * session ticket, and the client will accordingly send us early data
4032 * when using that ticket (if the client has early data to send).
4033 * However, in order for the early data to actually be consumed by
4034 * the application, the application must also have calls to
4035 * SSL_read_early_data(); otherwise we'll just skip past the early data
4036 * and ignore it. So, since the application must add calls to
4037 * SSL_read_early_data(), we also require them to add
4038 * calls to SSL_CTX_set_max_early_data() in order to use early data,
4039 * eliminating the bandwidth-wasting early data in the case described
4042 ret->max_early_data = 0;
4045 * Default recv_max_early_data is a fully loaded single record. Could be
4046 * split across multiple records in practice. We set this differently to
4047 * max_early_data so that, in the default case, we do not advertise any
4048 * support for early_data, but if a client were to send us some (e.g.
4049 * because of an old, stale ticket) then we will tolerate it and skip over
4052 ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
4054 /* By default we send two session tickets automatically in TLSv1.3 */
4055 ret->num_tickets = 2;
4057 ssl_ctx_system_config(ret);
4065 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
4067 return SSL_CTX_new_ex(NULL, NULL, meth);
4070 int SSL_CTX_up_ref(SSL_CTX *ctx)
4074 if (CRYPTO_UP_REF(&ctx->references, &i) <= 0)
4077 REF_PRINT_COUNT("SSL_CTX", ctx);
4078 REF_ASSERT_ISNT(i < 2);
4079 return ((i > 1) ? 1 : 0);
4082 void SSL_CTX_free(SSL_CTX *a)
4090 CRYPTO_DOWN_REF(&a->references, &i);
4091 REF_PRINT_COUNT("SSL_CTX", a);
4094 REF_ASSERT_ISNT(i < 0);
4096 X509_VERIFY_PARAM_free(a->param);
4097 dane_ctx_final(&a->dane);
4100 * Free internal session cache. However: the remove_cb() may reference
4101 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
4102 * after the sessions were flushed.
4103 * As the ex_data handling routines might also touch the session cache,
4104 * the most secure solution seems to be: empty (flush) the cache, then
4105 * free ex_data, then finally free the cache.
4106 * (See ticket [openssl.org #212].)
4108 if (a->sessions != NULL)
4109 SSL_CTX_flush_sessions(a, 0);
4111 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
4112 lh_SSL_SESSION_free(a->sessions);
4113 X509_STORE_free(a->cert_store);
4114 #ifndef OPENSSL_NO_CT
4115 CTLOG_STORE_free(a->ctlog_store);
4117 sk_SSL_CIPHER_free(a->cipher_list);
4118 sk_SSL_CIPHER_free(a->cipher_list_by_id);
4119 sk_SSL_CIPHER_free(a->tls13_ciphersuites);
4120 ssl_cert_free(a->cert);
4121 sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
4122 sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
4123 OSSL_STACK_OF_X509_free(a->extra_certs);
4124 a->comp_methods = NULL;
4125 #ifndef OPENSSL_NO_SRTP
4126 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
4128 #ifndef OPENSSL_NO_SRP
4129 ssl_ctx_srp_ctx_free_intern(a);
4131 #ifndef OPENSSL_NO_ENGINE
4132 tls_engine_finish(a->client_cert_engine);
4135 OPENSSL_free(a->ext.ecpointformats);
4136 OPENSSL_free(a->ext.supportedgroups);
4137 OPENSSL_free(a->ext.supported_groups_default);
4138 OPENSSL_free(a->ext.alpn);
4139 OPENSSL_secure_free(a->ext.secure);
4141 ssl_evp_md_free(a->md5);
4142 ssl_evp_md_free(a->sha1);
4144 for (j = 0; j < SSL_ENC_NUM_IDX; j++)
4145 ssl_evp_cipher_free(a->ssl_cipher_methods[j]);
4146 for (j = 0; j < SSL_MD_NUM_IDX; j++)
4147 ssl_evp_md_free(a->ssl_digest_methods[j]);
4148 for (j = 0; j < a->group_list_len; j++) {
4149 OPENSSL_free(a->group_list[j].tlsname);
4150 OPENSSL_free(a->group_list[j].realname);
4151 OPENSSL_free(a->group_list[j].algorithm);
4153 OPENSSL_free(a->group_list);
4154 for (j = 0; j < a->sigalg_list_len; j++) {
4155 OPENSSL_free(a->sigalg_list[j].name);
4156 OPENSSL_free(a->sigalg_list[j].sigalg_name);
4157 OPENSSL_free(a->sigalg_list[j].sigalg_oid);
4158 OPENSSL_free(a->sigalg_list[j].sig_name);
4159 OPENSSL_free(a->sigalg_list[j].sig_oid);
4160 OPENSSL_free(a->sigalg_list[j].hash_name);
4161 OPENSSL_free(a->sigalg_list[j].hash_oid);
4162 OPENSSL_free(a->sigalg_list[j].keytype);
4163 OPENSSL_free(a->sigalg_list[j].keytype_oid);
4165 OPENSSL_free(a->sigalg_list);
4166 OPENSSL_free(a->ssl_cert_info);
4168 OPENSSL_free(a->sigalg_lookup_cache);
4169 OPENSSL_free(a->tls12_sigalgs);
4171 OPENSSL_free(a->client_cert_type);
4172 OPENSSL_free(a->server_cert_type);
4174 CRYPTO_THREAD_lock_free(a->lock);
4175 CRYPTO_FREE_REF(&a->references);
4176 #ifdef TSAN_REQUIRES_LOCKING
4177 CRYPTO_THREAD_lock_free(a->tsan_lock);
4180 OPENSSL_free(a->propq);
4185 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
4187 ctx->default_passwd_callback = cb;
4190 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
4192 ctx->default_passwd_callback_userdata = u;
4195 pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
4197 return ctx->default_passwd_callback;
4200 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
4202 return ctx->default_passwd_callback_userdata;
4205 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
4207 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4212 sc->default_passwd_callback = cb;
4215 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
4217 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4222 sc->default_passwd_callback_userdata = u;
4225 pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
4227 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4232 return sc->default_passwd_callback;
4235 void *SSL_get_default_passwd_cb_userdata(SSL *s)
4237 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4242 return sc->default_passwd_callback_userdata;
4245 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
4246 int (*cb) (X509_STORE_CTX *, void *),
4249 ctx->app_verify_callback = cb;
4250 ctx->app_verify_arg = arg;
4253 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
4254 int (*cb) (int, X509_STORE_CTX *))
4256 ctx->verify_mode = mode;
4257 ctx->default_verify_callback = cb;
4260 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
4262 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
4265 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
4267 ssl_cert_set_cert_cb(c->cert, cb, arg);
4270 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
4272 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4277 ssl_cert_set_cert_cb(sc->cert, cb, arg);
4280 void ssl_set_masks(SSL_CONNECTION *s)
4283 uint32_t *pvalid = s->s3.tmp.valid_flags;
4284 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
4285 unsigned long mask_k, mask_a;
4286 int have_ecc_cert, ecdsa_ok;
4291 dh_tmp = (c->dh_tmp != NULL
4292 || c->dh_tmp_cb != NULL
4295 rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4296 rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4297 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
4298 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
4302 OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
4303 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
4305 #ifndef OPENSSL_NO_GOST
4306 if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
4307 mask_k |= SSL_kGOST | SSL_kGOST18;
4308 mask_a |= SSL_aGOST12;
4310 if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
4311 mask_k |= SSL_kGOST | SSL_kGOST18;
4312 mask_a |= SSL_aGOST12;
4314 if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
4315 mask_k |= SSL_kGOST;
4316 mask_a |= SSL_aGOST01;
4327 * If we only have an RSA-PSS certificate allow RSA authentication
4328 * if TLS 1.2 and peer supports it.
4331 if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
4332 && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
4333 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION))
4340 mask_a |= SSL_aNULL;
4343 * You can do anything with an RPK key, since there's no cert to restrict it
4344 * But we need to check for private keys
4346 if (pvalid[SSL_PKEY_RSA] & CERT_PKEY_RPK) {
4350 if (pvalid[SSL_PKEY_ECC] & CERT_PKEY_RPK)
4351 mask_a |= SSL_aECDSA;
4352 if (TLS1_get_version(&s->ssl) == TLS1_2_VERSION) {
4353 if (pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_RPK)
4355 if (pvalid[SSL_PKEY_ED25519] & CERT_PKEY_RPK
4356 || pvalid[SSL_PKEY_ED448] & CERT_PKEY_RPK)
4357 mask_a |= SSL_aECDSA;
4361 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
4362 * depending on the key usage extension.
4364 if (have_ecc_cert) {
4366 ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
4367 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
4368 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
4371 mask_a |= SSL_aECDSA;
4373 /* Allow Ed25519 for TLS 1.2 if peer supports it */
4374 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
4375 && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
4376 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4377 mask_a |= SSL_aECDSA;
4379 /* Allow Ed448 for TLS 1.2 if peer supports it */
4380 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
4381 && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
4382 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4383 mask_a |= SSL_aECDSA;
4385 mask_k |= SSL_kECDHE;
4387 #ifndef OPENSSL_NO_PSK
4390 if (mask_k & SSL_kRSA)
4391 mask_k |= SSL_kRSAPSK;
4392 if (mask_k & SSL_kDHE)
4393 mask_k |= SSL_kDHEPSK;
4394 if (mask_k & SSL_kECDHE)
4395 mask_k |= SSL_kECDHEPSK;
4398 s->s3.tmp.mask_k = mask_k;
4399 s->s3.tmp.mask_a = mask_a;
4402 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CONNECTION *s)
4404 if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
4405 /* key usage, if present, must allow signing */
4406 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
4407 ERR_raise(ERR_LIB_SSL, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
4411 return 1; /* all checks are ok */
4414 int ssl_get_server_cert_serverinfo(SSL_CONNECTION *s,
4415 const unsigned char **serverinfo,
4416 size_t *serverinfo_length)
4418 CERT_PKEY *cpk = s->s3.tmp.cert;
4419 *serverinfo_length = 0;
4421 if (cpk == NULL || cpk->serverinfo == NULL)
4424 *serverinfo = cpk->serverinfo;
4425 *serverinfo_length = cpk->serverinfo_length;
4429 void ssl_update_cache(SSL_CONNECTION *s, int mode)
4434 * If the session_id_length is 0, we are not supposed to cache it, and it
4435 * would be rather hard to do anyway :-)
4437 if (s->session->session_id_length == 0)
4441 * If sid_ctx_length is 0 there is no specific application context
4442 * associated with this session, so when we try to resume it and
4443 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
4444 * indication that this is actually a session for the proper application
4445 * context, and the *handshake* will fail, not just the resumption attempt.
4446 * Do not cache (on the server) these sessions that are not resumable
4447 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
4449 if (s->server && s->session->sid_ctx_length == 0
4450 && (s->verify_mode & SSL_VERIFY_PEER) != 0)
4453 i = s->session_ctx->session_cache_mode;
4455 && (!s->hit || SSL_CONNECTION_IS_TLS13(s))) {
4457 * Add the session to the internal cache. In server side TLSv1.3 we
4458 * normally don't do this because by default it's a full stateless ticket
4459 * with only a dummy session id so there is no reason to cache it,
4461 * - we are doing early_data, in which case we cache so that we can
4463 * - the application has set a remove_session_cb so needs to know about
4464 * session timeout events
4465 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
4467 if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
4468 && (!SSL_CONNECTION_IS_TLS13(s)
4470 || (s->max_early_data > 0
4471 && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
4472 || s->session_ctx->remove_session_cb != NULL
4473 || (s->options & SSL_OP_NO_TICKET) != 0))
4474 SSL_CTX_add_session(s->session_ctx, s->session);
4477 * Add the session to the external cache. We do this even in server side
4478 * TLSv1.3 without early data because some applications just want to
4479 * know about the creation of a session and aren't doing a full cache.
4481 if (s->session_ctx->new_session_cb != NULL) {
4482 SSL_SESSION_up_ref(s->session);
4483 if (!s->session_ctx->new_session_cb(SSL_CONNECTION_GET_SSL(s),
4485 SSL_SESSION_free(s->session);
4489 /* auto flush every 255 connections */
4490 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
4491 TSAN_QUALIFIER int *stat;
4493 if (mode & SSL_SESS_CACHE_CLIENT)
4494 stat = &s->session_ctx->stats.sess_connect_good;
4496 stat = &s->session_ctx->stats.sess_accept_good;
4497 if ((ssl_tsan_load(s->session_ctx, stat) & 0xff) == 0xff)
4498 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
4502 const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
4507 const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
4512 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
4515 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4517 /* TODO(QUIC): Do we want this for QUIC? */
4519 || (s->type != SSL_TYPE_SSL_CONNECTION && s->method != meth))
4522 if (s->method != meth) {
4523 const SSL_METHOD *sm = s->method;
4524 int (*hf) (SSL *) = sc->handshake_func;
4526 if (sm->version == meth->version)
4531 ret = s->method->ssl_init(s);
4534 if (hf == sm->ssl_connect)
4535 sc->handshake_func = meth->ssl_connect;
4536 else if (hf == sm->ssl_accept)
4537 sc->handshake_func = meth->ssl_accept;
4542 int SSL_get_error(const SSL *s, int i)
4547 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4550 return SSL_ERROR_NONE;
4552 #ifndef OPENSSL_NO_QUIC
4554 reason = ossl_quic_get_error(s, i);
4555 if (reason != SSL_ERROR_NONE)
4561 return SSL_ERROR_SSL;
4564 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
4565 * where we do encode the error
4567 if ((l = ERR_peek_error()) != 0) {
4568 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
4569 return SSL_ERROR_SYSCALL;
4571 return SSL_ERROR_SSL;
4574 #ifndef OPENSSL_NO_QUIC
4578 if (SSL_want_read(s)) {
4579 bio = SSL_get_rbio(s);
4580 if (BIO_should_read(bio))
4581 return SSL_ERROR_WANT_READ;
4582 else if (BIO_should_write(bio))
4584 * This one doesn't make too much sense ... We never try to
4585 * write to the rbio, and an application program where rbio and
4586 * wbio are separate couldn't even know what it should wait for.
4587 * However if we ever set s->rwstate incorrectly (so that we
4588 * have SSL_want_read(s) instead of SSL_want_write(s)) and rbio
4589 * and wbio *are* the same, this test works around that bug; so
4590 * it might be safer to keep it.
4592 return SSL_ERROR_WANT_WRITE;
4593 else if (BIO_should_io_special(bio)) {
4594 reason = BIO_get_retry_reason(bio);
4595 if (reason == BIO_RR_CONNECT)
4596 return SSL_ERROR_WANT_CONNECT;
4597 else if (reason == BIO_RR_ACCEPT)
4598 return SSL_ERROR_WANT_ACCEPT;
4600 return SSL_ERROR_SYSCALL; /* unknown */
4604 if (SSL_want_write(s)) {
4606 * Access wbio directly - in order to use the buffered bio if
4610 if (BIO_should_write(bio))
4611 return SSL_ERROR_WANT_WRITE;
4612 else if (BIO_should_read(bio))
4614 * See above (SSL_want_read(s) with BIO_should_write(bio))
4616 return SSL_ERROR_WANT_READ;
4617 else if (BIO_should_io_special(bio)) {
4618 reason = BIO_get_retry_reason(bio);
4619 if (reason == BIO_RR_CONNECT)
4620 return SSL_ERROR_WANT_CONNECT;
4621 else if (reason == BIO_RR_ACCEPT)
4622 return SSL_ERROR_WANT_ACCEPT;
4624 return SSL_ERROR_SYSCALL;
4629 if (SSL_want_x509_lookup(s))
4630 return SSL_ERROR_WANT_X509_LOOKUP;
4631 if (SSL_want_retry_verify(s))
4632 return SSL_ERROR_WANT_RETRY_VERIFY;
4633 if (SSL_want_async(s))
4634 return SSL_ERROR_WANT_ASYNC;
4635 if (SSL_want_async_job(s))
4636 return SSL_ERROR_WANT_ASYNC_JOB;
4637 if (SSL_want_client_hello_cb(s))
4638 return SSL_ERROR_WANT_CLIENT_HELLO_CB;
4640 if ((sc->shutdown & SSL_RECEIVED_SHUTDOWN) &&
4641 (sc->s3.warn_alert == SSL_AD_CLOSE_NOTIFY))
4642 return SSL_ERROR_ZERO_RETURN;
4644 return SSL_ERROR_SYSCALL;
4647 static int ssl_do_handshake_intern(void *vargs)
4649 struct ssl_async_args *args = (struct ssl_async_args *)vargs;
4651 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4656 return sc->handshake_func(s);
4659 int SSL_do_handshake(SSL *s)
4662 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4664 #ifndef OPENSSL_NO_QUIC
4666 return ossl_quic_do_handshake(s);
4669 if (sc->handshake_func == NULL) {
4670 ERR_raise(ERR_LIB_SSL, SSL_R_CONNECTION_TYPE_NOT_SET);
4674 ossl_statem_check_finish_init(sc, -1);
4676 s->method->ssl_renegotiate_check(s, 0);
4678 if (SSL_in_init(s) || SSL_in_before(s)) {
4679 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
4680 struct ssl_async_args args;
4682 memset(&args, 0, sizeof(args));
4685 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
4687 ret = sc->handshake_func(s);
4693 void SSL_set_accept_state(SSL *s)
4695 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4697 #ifndef OPENSSL_NO_QUIC
4699 ossl_quic_set_accept_state(s);
4706 ossl_statem_clear(sc);
4707 sc->handshake_func = s->method->ssl_accept;
4708 /* Ignore return value. Its a void public API function */
4709 clear_record_layer(sc);
4712 void SSL_set_connect_state(SSL *s)
4714 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4716 #ifndef OPENSSL_NO_QUIC
4718 ossl_quic_set_connect_state(s);
4725 ossl_statem_clear(sc);
4726 sc->handshake_func = s->method->ssl_connect;
4727 /* Ignore return value. Its a void public API function */
4728 clear_record_layer(sc);
4731 int ssl_undefined_function(SSL *s)
4733 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4737 int ssl_undefined_void_function(void)
4739 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4743 int ssl_undefined_const_function(const SSL *s)
4748 const SSL_METHOD *ssl_bad_method(int ver)
4750 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4754 const char *ssl_protocol_to_string(int version)
4758 case TLS1_3_VERSION:
4761 case TLS1_2_VERSION:
4764 case TLS1_1_VERSION:
4779 case DTLS1_2_VERSION:
4787 const char *SSL_get_version(const SSL *s)
4789 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4791 #ifndef OPENSSL_NO_QUIC
4792 /* We only support QUICv1 - so if its QUIC its QUICv1 */
4793 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
4800 return ssl_protocol_to_string(sc->version);
4803 __owur int SSL_get_handshake_rtt(const SSL *s, uint64_t *rtt)
4805 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4809 if (sc->ts_msg_write.t <= 0 || sc->ts_msg_read.t <= 0)
4810 return 0; /* data not (yet) available */
4811 if (sc->ts_msg_read.t < sc->ts_msg_write.t)
4814 *rtt = ossl_time2us(ossl_time_subtract(sc->ts_msg_read, sc->ts_msg_write));
4818 static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
4820 STACK_OF(X509_NAME) *sk;
4829 if ((sk = sk_X509_NAME_new_null()) == NULL)
4831 for (i = 0; i < sk_X509_NAME_num(src); i++) {
4832 xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
4834 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4837 if (sk_X509_NAME_insert(sk, xn, i) == 0) {
4839 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4848 SSL *SSL_dup(SSL *s)
4852 /* TODO(QUIC): Add a SSL_METHOD function for duplication */
4853 SSL_CONNECTION *retsc;
4854 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4859 /* If we're not quiescent, just up_ref! */
4860 if (!SSL_in_init(s) || !SSL_in_before(s)) {
4861 CRYPTO_UP_REF(&s->references, &i);
4866 * Otherwise, copy configuration state, and session if set.
4868 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
4870 if ((retsc = SSL_CONNECTION_FROM_SSL_ONLY(ret)) == NULL)
4873 if (sc->session != NULL) {
4875 * Arranges to share the same session via up_ref. This "copies"
4876 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4878 if (!SSL_copy_session_id(ret, s))
4882 * No session has been established yet, so we have to expect that
4883 * s->cert or ret->cert will be changed later -- they should not both
4884 * point to the same object, and thus we can't use
4885 * SSL_copy_session_id.
4887 if (!SSL_set_ssl_method(ret, s->method))
4890 if (sc->cert != NULL) {
4891 ssl_cert_free(retsc->cert);
4892 retsc->cert = ssl_cert_dup(sc->cert);
4893 if (retsc->cert == NULL)
4897 if (!SSL_set_session_id_context(ret, sc->sid_ctx,
4898 (int)sc->sid_ctx_length))
4902 if (!ssl_dane_dup(retsc, sc))
4904 retsc->version = sc->version;
4905 retsc->options = sc->options;
4906 retsc->min_proto_version = sc->min_proto_version;
4907 retsc->max_proto_version = sc->max_proto_version;
4908 retsc->mode = sc->mode;
4909 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
4910 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
4911 retsc->msg_callback = sc->msg_callback;
4912 retsc->msg_callback_arg = sc->msg_callback_arg;
4913 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
4914 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
4915 retsc->generate_session_id = sc->generate_session_id;
4917 SSL_set_info_callback(ret, SSL_get_info_callback(s));
4919 /* copy app data, a little dangerous perhaps */
4920 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
4923 retsc->server = sc->server;
4924 if (sc->handshake_func) {
4926 SSL_set_accept_state(ret);
4928 SSL_set_connect_state(ret);
4930 retsc->shutdown = sc->shutdown;
4931 retsc->hit = sc->hit;
4933 retsc->default_passwd_callback = sc->default_passwd_callback;
4934 retsc->default_passwd_callback_userdata = sc->default_passwd_callback_userdata;
4936 X509_VERIFY_PARAM_inherit(retsc->param, sc->param);
4938 /* dup the cipher_list and cipher_list_by_id stacks */
4939 if (sc->cipher_list != NULL) {
4940 if ((retsc->cipher_list = sk_SSL_CIPHER_dup(sc->cipher_list)) == NULL)
4943 if (sc->cipher_list_by_id != NULL)
4944 if ((retsc->cipher_list_by_id = sk_SSL_CIPHER_dup(sc->cipher_list_by_id))
4948 /* Dup the client_CA list */
4949 if (!dup_ca_names(&retsc->ca_names, sc->ca_names)
4950 || !dup_ca_names(&retsc->client_ca_names, sc->client_ca_names))
4960 X509 *SSL_get_certificate(const SSL *s)
4962 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4967 if (sc->cert != NULL)
4968 return sc->cert->key->x509;
4973 EVP_PKEY *SSL_get_privatekey(const SSL *s)
4975 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4980 if (sc->cert != NULL)
4981 return sc->cert->key->privatekey;
4986 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
4988 if (ctx->cert != NULL)
4989 return ctx->cert->key->x509;
4994 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
4996 if (ctx->cert != NULL)
4997 return ctx->cert->key->privatekey;
5002 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
5004 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5009 if ((sc->session != NULL) && (sc->session->cipher != NULL))
5010 return sc->session->cipher;
5014 const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
5016 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5021 return sc->s3.tmp.new_cipher;
5024 const COMP_METHOD *SSL_get_current_compression(const SSL *s)
5026 #ifndef OPENSSL_NO_COMP
5027 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5032 return sc->rlayer.wrlmethod->get_compression(sc->rlayer.wrl);
5038 const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
5040 #ifndef OPENSSL_NO_COMP
5041 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5046 return sc->rlayer.rrlmethod->get_compression(sc->rlayer.rrl);
5052 int ssl_init_wbio_buffer(SSL_CONNECTION *s)
5056 if (s->bbio != NULL) {
5057 /* Already buffered. */
5061 bbio = BIO_new(BIO_f_buffer());
5062 if (bbio == NULL || BIO_set_read_buffer_size(bbio, 1) <= 0) {
5064 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
5068 s->wbio = BIO_push(bbio, s->wbio);
5070 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5075 int ssl_free_wbio_buffer(SSL_CONNECTION *s)
5077 /* callers ensure s is never null */
5078 if (s->bbio == NULL)
5081 s->wbio = BIO_pop(s->wbio);
5082 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5090 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
5092 ctx->quiet_shutdown = mode;
5095 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
5097 return ctx->quiet_shutdown;
5100 void SSL_set_quiet_shutdown(SSL *s, int mode)
5102 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5104 /* TODO(QUIC): Do we want this for QUIC? */
5108 sc->quiet_shutdown = mode;
5111 int SSL_get_quiet_shutdown(const SSL *s)
5113 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5115 /* TODO(QUIC): Do we want this for QUIC? */
5119 return sc->quiet_shutdown;
5122 void SSL_set_shutdown(SSL *s, int mode)
5124 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5126 /* TODO(QUIC): Do we want this for QUIC? */
5130 sc->shutdown = mode;
5133 int SSL_get_shutdown(const SSL *s)
5135 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5137 /* TODO(QUIC): Do we want this for QUIC? */
5141 return sc->shutdown;
5144 int SSL_version(const SSL *s)
5146 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5148 #ifndef OPENSSL_NO_QUIC
5149 /* We only support QUICv1 - so if its QUIC its QUICv1 */
5150 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
5151 return OSSL_QUIC1_VERSION;
5153 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
5160 int SSL_client_version(const SSL *s)
5162 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5164 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
5168 return sc->client_version;
5171 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
5176 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
5179 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
5181 /* TODO(QUIC): Do we need this for QUIC support? */
5185 if (ssl->ctx == ctx)
5188 ctx = sc->session_ctx;
5189 new_cert = ssl_cert_dup(ctx->cert);
5190 if (new_cert == NULL) {
5194 if (!custom_exts_copy_flags(&new_cert->custext, &sc->cert->custext)) {
5195 ssl_cert_free(new_cert);
5199 ssl_cert_free(sc->cert);
5200 sc->cert = new_cert;
5203 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
5204 * so setter APIs must prevent invalid lengths from entering the system.
5206 if (!ossl_assert(sc->sid_ctx_length <= sizeof(sc->sid_ctx)))
5210 * If the session ID context matches that of the parent SSL_CTX,
5211 * inherit it from the new SSL_CTX as well. If however the context does
5212 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
5213 * leave it unchanged.
5215 if ((ssl->ctx != NULL) &&
5216 (sc->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
5217 (memcmp(sc->sid_ctx, ssl->ctx->sid_ctx, sc->sid_ctx_length) == 0)) {
5218 sc->sid_ctx_length = ctx->sid_ctx_length;
5219 memcpy(&sc->sid_ctx, &ctx->sid_ctx, sizeof(sc->sid_ctx));
5222 SSL_CTX_up_ref(ctx);
5223 SSL_CTX_free(ssl->ctx); /* decrement reference count */
5229 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
5231 return X509_STORE_set_default_paths_ex(ctx->cert_store, ctx->libctx,
5235 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
5237 X509_LOOKUP *lookup;
5239 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
5243 /* We ignore errors, in case the directory doesn't exist */
5246 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
5253 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
5255 X509_LOOKUP *lookup;
5257 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
5261 /* We ignore errors, in case the file doesn't exist */
5264 X509_LOOKUP_load_file_ex(lookup, NULL, X509_FILETYPE_DEFAULT, ctx->libctx,
5272 int SSL_CTX_set_default_verify_store(SSL_CTX *ctx)
5274 X509_LOOKUP *lookup;
5276 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_store());
5280 /* We ignore errors, in case the directory doesn't exist */
5283 X509_LOOKUP_add_store_ex(lookup, NULL, ctx->libctx, ctx->propq);
5290 int SSL_CTX_load_verify_file(SSL_CTX *ctx, const char *CAfile)
5292 return X509_STORE_load_file_ex(ctx->cert_store, CAfile, ctx->libctx,
5296 int SSL_CTX_load_verify_dir(SSL_CTX *ctx, const char *CApath)
5298 return X509_STORE_load_path(ctx->cert_store, CApath);
5301 int SSL_CTX_load_verify_store(SSL_CTX *ctx, const char *CAstore)
5303 return X509_STORE_load_store_ex(ctx->cert_store, CAstore, ctx->libctx,
5307 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
5310 if (CAfile == NULL && CApath == NULL)
5312 if (CAfile != NULL && !SSL_CTX_load_verify_file(ctx, CAfile))
5314 if (CApath != NULL && !SSL_CTX_load_verify_dir(ctx, CApath))
5319 void SSL_set_info_callback(SSL *ssl,
5320 void (*cb) (const SSL *ssl, int type, int val))
5322 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5327 sc->info_callback = cb;
5331 * One compiler (Diab DCC) doesn't like argument names in returned function
5334 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
5337 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5342 return sc->info_callback;
5345 void SSL_set_verify_result(SSL *ssl, long arg)
5347 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5352 sc->verify_result = arg;
5355 long SSL_get_verify_result(const SSL *ssl)
5357 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5362 return sc->verify_result;
5365 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
5367 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5373 return sizeof(sc->s3.client_random);
5374 if (outlen > sizeof(sc->s3.client_random))
5375 outlen = sizeof(sc->s3.client_random);
5376 memcpy(out, sc->s3.client_random, outlen);
5380 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
5382 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5388 return sizeof(sc->s3.server_random);
5389 if (outlen > sizeof(sc->s3.server_random))
5390 outlen = sizeof(sc->s3.server_random);
5391 memcpy(out, sc->s3.server_random, outlen);
5395 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
5396 unsigned char *out, size_t outlen)
5399 return session->master_key_length;
5400 if (outlen > session->master_key_length)
5401 outlen = session->master_key_length;
5402 memcpy(out, session->master_key, outlen);
5406 int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
5409 if (len > sizeof(sess->master_key))
5412 memcpy(sess->master_key, in, len);
5413 sess->master_key_length = len;
5418 int SSL_set_ex_data(SSL *s, int idx, void *arg)
5420 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5423 void *SSL_get_ex_data(const SSL *s, int idx)
5425 return CRYPTO_get_ex_data(&s->ex_data, idx);
5428 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
5430 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5433 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
5435 return CRYPTO_get_ex_data(&s->ex_data, idx);
5438 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
5440 return ctx->cert_store;
5443 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
5445 X509_STORE_free(ctx->cert_store);
5446 ctx->cert_store = store;
5449 void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
5452 X509_STORE_up_ref(store);
5453 SSL_CTX_set_cert_store(ctx, store);
5456 int SSL_want(const SSL *s)
5458 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5466 #ifndef OPENSSL_NO_PSK
5467 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
5469 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5470 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5473 OPENSSL_free(ctx->cert->psk_identity_hint);
5474 if (identity_hint != NULL) {
5475 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5476 if (ctx->cert->psk_identity_hint == NULL)
5479 ctx->cert->psk_identity_hint = NULL;
5483 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
5485 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5490 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5491 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5494 OPENSSL_free(sc->cert->psk_identity_hint);
5495 if (identity_hint != NULL) {
5496 sc->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5497 if (sc->cert->psk_identity_hint == NULL)
5500 sc->cert->psk_identity_hint = NULL;
5504 const char *SSL_get_psk_identity_hint(const SSL *s)
5506 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5508 if (sc == NULL || sc->session == NULL)
5511 return sc->session->psk_identity_hint;
5514 const char *SSL_get_psk_identity(const SSL *s)
5516 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5518 if (sc == NULL || sc->session == NULL)
5521 return sc->session->psk_identity;
5524 void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
5526 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5531 sc->psk_client_callback = cb;
5534 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
5536 ctx->psk_client_callback = cb;
5539 void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
5541 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5546 sc->psk_server_callback = cb;
5549 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
5551 ctx->psk_server_callback = cb;
5555 void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
5557 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5562 sc->psk_find_session_cb = cb;
5565 void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
5566 SSL_psk_find_session_cb_func cb)
5568 ctx->psk_find_session_cb = cb;
5571 void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
5573 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5578 sc->psk_use_session_cb = cb;
5581 void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
5582 SSL_psk_use_session_cb_func cb)
5584 ctx->psk_use_session_cb = cb;
5587 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
5588 void (*cb) (int write_p, int version,
5589 int content_type, const void *buf,
5590 size_t len, SSL *ssl, void *arg))
5592 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5595 void SSL_set_msg_callback(SSL *ssl,
5596 void (*cb) (int write_p, int version,
5597 int content_type, const void *buf,
5598 size_t len, SSL *ssl, void *arg))
5600 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5603 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
5604 int (*cb) (SSL *ssl,
5608 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5609 (void (*)(void))cb);
5612 void SSL_set_not_resumable_session_callback(SSL *ssl,
5613 int (*cb) (SSL *ssl,
5614 int is_forward_secure))
5616 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5617 (void (*)(void))cb);
5620 void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
5621 size_t (*cb) (SSL *ssl, int type,
5622 size_t len, void *arg))
5624 ctx->record_padding_cb = cb;
5627 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
5629 ctx->record_padding_arg = arg;
5632 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
5634 return ctx->record_padding_arg;
5637 int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
5639 /* block size of 0 or 1 is basically no padding */
5640 if (block_size == 1)
5641 ctx->block_padding = 0;
5642 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5643 ctx->block_padding = block_size;
5649 int SSL_set_record_padding_callback(SSL *ssl,
5650 size_t (*cb) (SSL *ssl, int type,
5651 size_t len, void *arg))
5654 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5656 if (sc == NULL || IS_QUIC_SSL(ssl))
5659 b = SSL_get_wbio(ssl);
5660 if (b == NULL || !BIO_get_ktls_send(b)) {
5661 sc->rlayer.record_padding_cb = cb;
5667 void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
5669 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5674 sc->rlayer.record_padding_arg = arg;
5677 void *SSL_get_record_padding_callback_arg(const SSL *ssl)
5679 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5684 return sc->rlayer.record_padding_arg;
5687 int SSL_set_block_padding(SSL *ssl, size_t block_size)
5689 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5691 if (sc == NULL || (IS_QUIC_SSL(ssl) && block_size > 1))
5694 /* block size of 0 or 1 is basically no padding */
5695 if (block_size == 1)
5696 sc->rlayer.block_padding = 0;
5697 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5698 sc->rlayer.block_padding = block_size;
5704 int SSL_set_num_tickets(SSL *s, size_t num_tickets)
5706 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5711 sc->num_tickets = num_tickets;
5716 size_t SSL_get_num_tickets(const SSL *s)
5718 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5723 return sc->num_tickets;
5726 int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
5728 ctx->num_tickets = num_tickets;
5733 size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
5735 return ctx->num_tickets;
5738 /* Retrieve handshake hashes */
5739 int ssl_handshake_hash(SSL_CONNECTION *s,
5740 unsigned char *out, size_t outlen,
5743 EVP_MD_CTX *ctx = NULL;
5744 EVP_MD_CTX *hdgst = s->s3.handshake_dgst;
5745 int hashleni = EVP_MD_CTX_get_size(hdgst);
5748 if (hashleni < 0 || (size_t)hashleni > outlen) {
5749 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5753 ctx = EVP_MD_CTX_new();
5755 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5759 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
5760 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
5761 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5765 *hashlen = hashleni;
5769 EVP_MD_CTX_free(ctx);
5773 int SSL_session_reused(const SSL *s)
5775 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5783 int SSL_is_server(const SSL *s)
5785 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5793 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
5794 void SSL_set_debug(SSL *s, int debug)
5796 /* Old function was do-nothing anyway... */
5802 void SSL_set_security_level(SSL *s, int level)
5804 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5809 sc->cert->sec_level = level;
5812 int SSL_get_security_level(const SSL *s)
5814 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5819 return sc->cert->sec_level;
5822 void SSL_set_security_callback(SSL *s,
5823 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5824 int op, int bits, int nid,
5825 void *other, void *ex))
5827 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5832 sc->cert->sec_cb = cb;
5835 int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
5836 const SSL_CTX *ctx, int op,
5837 int bits, int nid, void *other,
5839 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5844 return sc->cert->sec_cb;
5847 void SSL_set0_security_ex_data(SSL *s, void *ex)
5849 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5854 sc->cert->sec_ex = ex;
5857 void *SSL_get0_security_ex_data(const SSL *s)
5859 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5864 return sc->cert->sec_ex;
5867 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
5869 ctx->cert->sec_level = level;
5872 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
5874 return ctx->cert->sec_level;
5877 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
5878 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5879 int op, int bits, int nid,
5880 void *other, void *ex))
5882 ctx->cert->sec_cb = cb;
5885 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
5891 return ctx->cert->sec_cb;
5894 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
5896 ctx->cert->sec_ex = ex;
5899 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
5901 return ctx->cert->sec_ex;
5904 uint64_t SSL_CTX_get_options(const SSL_CTX *ctx)
5906 return ctx->options;
5909 uint64_t SSL_get_options(const SSL *s)
5911 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5913 #ifndef OPENSSL_NO_QUIC
5915 return ossl_quic_get_options(s);
5924 uint64_t SSL_CTX_set_options(SSL_CTX *ctx, uint64_t op)
5926 return ctx->options |= op;
5929 uint64_t SSL_set_options(SSL *s, uint64_t op)
5932 OSSL_PARAM options[2], *opts = options;
5934 #ifndef OPENSSL_NO_QUIC
5936 return ossl_quic_set_options(s, op);
5939 sc = SSL_CONNECTION_FROM_SSL(s);
5945 *opts++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS,
5947 *opts = OSSL_PARAM_construct_end();
5949 /* Ignore return value */
5950 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
5955 uint64_t SSL_CTX_clear_options(SSL_CTX *ctx, uint64_t op)
5957 return ctx->options &= ~op;
5960 uint64_t SSL_clear_options(SSL *s, uint64_t op)
5962 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5964 #ifndef OPENSSL_NO_QUIC
5966 return ossl_quic_clear_options(s, op);
5972 return sc->options &= ~op;
5975 STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
5977 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5982 return sc->verified_chain;
5985 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
5987 #ifndef OPENSSL_NO_CT
5990 * Moves SCTs from the |src| stack to the |dst| stack.
5991 * The source of each SCT will be set to |origin|.
5992 * If |dst| points to a NULL pointer, a new stack will be created and owned by
5994 * Returns the number of SCTs moved, or a negative integer if an error occurs.
5996 static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
5997 sct_source_t origin)
6003 *dst = sk_SCT_new_null();
6005 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6010 while ((sct = sk_SCT_pop(src)) != NULL) {
6011 if (SCT_set_source(sct, origin) != 1)
6014 if (sk_SCT_push(*dst, sct) <= 0)
6022 sk_SCT_push(src, sct); /* Put the SCT back */
6027 * Look for data collected during ServerHello and parse if found.
6028 * Returns the number of SCTs extracted.
6030 static int ct_extract_tls_extension_scts(SSL_CONNECTION *s)
6032 int scts_extracted = 0;
6034 if (s->ext.scts != NULL) {
6035 const unsigned char *p = s->ext.scts;
6036 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
6038 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
6040 SCT_LIST_free(scts);
6043 return scts_extracted;
6047 * Checks for an OCSP response and then attempts to extract any SCTs found if it
6048 * contains an SCT X509 extension. They will be stored in |s->scts|.
6050 * - The number of SCTs extracted, assuming an OCSP response exists.
6051 * - 0 if no OCSP response exists or it contains no SCTs.
6052 * - A negative integer if an error occurs.
6054 static int ct_extract_ocsp_response_scts(SSL_CONNECTION *s)
6056 # ifndef OPENSSL_NO_OCSP
6057 int scts_extracted = 0;
6058 const unsigned char *p;
6059 OCSP_BASICRESP *br = NULL;
6060 OCSP_RESPONSE *rsp = NULL;
6061 STACK_OF(SCT) *scts = NULL;
6064 if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
6067 p = s->ext.ocsp.resp;
6068 rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
6072 br = OCSP_response_get1_basic(rsp);
6076 for (i = 0; i < OCSP_resp_count(br); ++i) {
6077 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
6083 OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
6085 ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
6086 if (scts_extracted < 0)
6090 SCT_LIST_free(scts);
6091 OCSP_BASICRESP_free(br);
6092 OCSP_RESPONSE_free(rsp);
6093 return scts_extracted;
6095 /* Behave as if no OCSP response exists */
6101 * Attempts to extract SCTs from the peer certificate.
6102 * Return the number of SCTs extracted, or a negative integer if an error
6105 static int ct_extract_x509v3_extension_scts(SSL_CONNECTION *s)
6107 int scts_extracted = 0;
6108 X509 *cert = s->session != NULL ? s->session->peer : NULL;
6111 STACK_OF(SCT) *scts =
6112 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
6115 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
6117 SCT_LIST_free(scts);
6120 return scts_extracted;
6124 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
6125 * response (if it exists) and X509v3 extensions in the certificate.
6126 * Returns NULL if an error occurs.
6128 const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
6130 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6135 if (!sc->scts_parsed) {
6136 if (ct_extract_tls_extension_scts(sc) < 0 ||
6137 ct_extract_ocsp_response_scts(sc) < 0 ||
6138 ct_extract_x509v3_extension_scts(sc) < 0)
6141 sc->scts_parsed = 1;
6148 static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx,
6149 const STACK_OF(SCT) *scts, void *unused_arg)
6154 static int ct_strict(const CT_POLICY_EVAL_CTX * ctx,
6155 const STACK_OF(SCT) *scts, void *unused_arg)
6157 int count = scts != NULL ? sk_SCT_num(scts) : 0;
6160 for (i = 0; i < count; ++i) {
6161 SCT *sct = sk_SCT_value(scts, i);
6162 int status = SCT_get_validation_status(sct);
6164 if (status == SCT_VALIDATION_STATUS_VALID)
6167 ERR_raise(ERR_LIB_SSL, SSL_R_NO_VALID_SCTS);
6171 int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
6174 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6180 * Since code exists that uses the custom extension handler for CT, look
6181 * for this and throw an error if they have already registered to use CT.
6183 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
6184 TLSEXT_TYPE_signed_certificate_timestamp))
6186 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
6190 if (callback != NULL) {
6192 * If we are validating CT, then we MUST accept SCTs served via OCSP
6194 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
6198 sc->ct_validation_callback = callback;
6199 sc->ct_validation_callback_arg = arg;
6204 int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
6205 ssl_ct_validation_cb callback, void *arg)
6208 * Since code exists that uses the custom extension handler for CT, look for
6209 * this and throw an error if they have already registered to use CT.
6211 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
6212 TLSEXT_TYPE_signed_certificate_timestamp))
6214 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
6218 ctx->ct_validation_callback = callback;
6219 ctx->ct_validation_callback_arg = arg;
6223 int SSL_ct_is_enabled(const SSL *s)
6225 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6230 return sc->ct_validation_callback != NULL;
6233 int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
6235 return ctx->ct_validation_callback != NULL;
6238 int ssl_validate_ct(SSL_CONNECTION *s)
6241 X509 *cert = s->session != NULL ? s->session->peer : NULL;
6243 SSL_DANE *dane = &s->dane;
6244 CT_POLICY_EVAL_CTX *ctx = NULL;
6245 const STACK_OF(SCT) *scts;
6248 * If no callback is set, the peer is anonymous, or its chain is invalid,
6249 * skip SCT validation - just return success. Applications that continue
6250 * handshakes without certificates, with unverified chains, or pinned leaf
6251 * certificates are outside the scope of the WebPKI and CT.
6253 * The above exclusions notwithstanding the vast majority of peers will
6254 * have rather ordinary certificate chains validated by typical
6255 * applications that perform certificate verification and therefore will
6256 * process SCTs when enabled.
6258 if (s->ct_validation_callback == NULL || cert == NULL ||
6259 s->verify_result != X509_V_OK ||
6260 s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
6264 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
6265 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
6267 if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
6268 switch (dane->mtlsa->usage) {
6269 case DANETLS_USAGE_DANE_TA:
6270 case DANETLS_USAGE_DANE_EE:
6275 ctx = CT_POLICY_EVAL_CTX_new_ex(SSL_CONNECTION_GET_CTX(s)->libctx,
6276 SSL_CONNECTION_GET_CTX(s)->propq);
6278 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CT_LIB);
6282 issuer = sk_X509_value(s->verified_chain, 1);
6283 CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
6284 CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
6285 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx,
6286 SSL_CONNECTION_GET_CTX(s)->ctlog_store);
6287 CT_POLICY_EVAL_CTX_set_time(
6288 ctx, (uint64_t)SSL_SESSION_get_time(s->session) * 1000);
6290 scts = SSL_get0_peer_scts(SSL_CONNECTION_GET_SSL(s));
6293 * This function returns success (> 0) only when all the SCTs are valid, 0
6294 * when some are invalid, and < 0 on various internal errors (out of
6295 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
6296 * reason to abort the handshake, that decision is up to the callback.
6297 * Therefore, we error out only in the unexpected case that the return
6298 * value is negative.
6300 * XXX: One might well argue that the return value of this function is an
6301 * unfortunate design choice. Its job is only to determine the validation
6302 * status of each of the provided SCTs. So long as it correctly separates
6303 * the wheat from the chaff it should return success. Failure in this case
6304 * ought to correspond to an inability to carry out its duties.
6306 if (SCT_LIST_validate(scts, ctx) < 0) {
6307 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_SCT_VERIFICATION_FAILED);
6311 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
6313 ret = 0; /* This function returns 0 on failure */
6315 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_CALLBACK_FAILED);
6318 CT_POLICY_EVAL_CTX_free(ctx);
6320 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
6321 * failure return code here. Also the application may wish the complete
6322 * the handshake, and then disconnect cleanly at a higher layer, after
6323 * checking the verification status of the completed connection.
6325 * We therefore force a certificate verification failure which will be
6326 * visible via SSL_get_verify_result() and cached as part of any resumed
6329 * Note: the permissive callback is for information gathering only, always
6330 * returns success, and does not affect verification status. Only the
6331 * strict callback or a custom application-specified callback can trigger
6332 * connection failure or record a verification error.
6335 s->verify_result = X509_V_ERR_NO_VALID_SCTS;
6339 int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
6341 switch (validation_mode) {
6343 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6345 case SSL_CT_VALIDATION_PERMISSIVE:
6346 return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
6347 case SSL_CT_VALIDATION_STRICT:
6348 return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
6352 int SSL_enable_ct(SSL *s, int validation_mode)
6354 switch (validation_mode) {
6356 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6358 case SSL_CT_VALIDATION_PERMISSIVE:
6359 return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
6360 case SSL_CT_VALIDATION_STRICT:
6361 return SSL_set_ct_validation_callback(s, ct_strict, NULL);
6365 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
6367 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
6370 int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
6372 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
6375 void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs)
6377 CTLOG_STORE_free(ctx->ctlog_store);
6378 ctx->ctlog_store = logs;
6381 const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
6383 return ctx->ctlog_store;
6386 #endif /* OPENSSL_NO_CT */
6388 void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
6391 c->client_hello_cb = cb;
6392 c->client_hello_cb_arg = arg;
6395 int SSL_client_hello_isv2(SSL *s)
6397 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6402 if (sc->clienthello == NULL)
6404 return sc->clienthello->isv2;
6407 unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
6409 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6414 if (sc->clienthello == NULL)
6416 return sc->clienthello->legacy_version;
6419 size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out)
6421 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6426 if (sc->clienthello == NULL)
6429 *out = sc->clienthello->random;
6430 return SSL3_RANDOM_SIZE;
6433 size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
6435 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6440 if (sc->clienthello == NULL)
6443 *out = sc->clienthello->session_id;
6444 return sc->clienthello->session_id_len;
6447 size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
6449 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6454 if (sc->clienthello == NULL)
6457 *out = PACKET_data(&sc->clienthello->ciphersuites);
6458 return PACKET_remaining(&sc->clienthello->ciphersuites);
6461 size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
6463 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6468 if (sc->clienthello == NULL)
6471 *out = sc->clienthello->compressions;
6472 return sc->clienthello->compressions_len;
6475 int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
6480 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6485 if (sc->clienthello == NULL || out == NULL || outlen == NULL)
6487 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6488 ext = sc->clienthello->pre_proc_exts + i;
6497 if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL)
6499 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6500 ext = sc->clienthello->pre_proc_exts + i;
6502 if (ext->received_order >= num)
6504 present[ext->received_order] = ext->type;
6511 OPENSSL_free(present);
6515 int SSL_client_hello_get_extension_order(SSL *s, uint16_t *exts, size_t *num_exts)
6519 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6524 if (sc->clienthello == NULL || num_exts == NULL)
6526 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6527 ext = sc->clienthello->pre_proc_exts + i;
6539 if (*num_exts < num)
6541 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6542 ext = sc->clienthello->pre_proc_exts + i;
6544 if (ext->received_order >= num)
6546 exts[ext->received_order] = ext->type;
6553 int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
6558 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6563 if (sc->clienthello == NULL)
6565 for (i = 0; i < sc->clienthello->pre_proc_exts_len; ++i) {
6566 r = sc->clienthello->pre_proc_exts + i;
6567 if (r->present && r->type == type) {
6569 *out = PACKET_data(&r->data);
6571 *outlen = PACKET_remaining(&r->data);
6578 int SSL_free_buffers(SSL *ssl)
6581 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6588 return rl->rrlmethod->free_buffers(rl->rrl)
6589 && rl->wrlmethod->free_buffers(rl->wrl);
6592 int SSL_alloc_buffers(SSL *ssl)
6595 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6602 return rl->rrlmethod->alloc_buffers(rl->rrl)
6603 && rl->wrlmethod->alloc_buffers(rl->wrl);
6606 void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
6608 ctx->keylog_callback = cb;
6611 SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
6613 return ctx->keylog_callback;
6616 static int nss_keylog_int(const char *prefix,
6618 const uint8_t *parameter_1,
6619 size_t parameter_1_len,
6620 const uint8_t *parameter_2,
6621 size_t parameter_2_len)
6624 char *cursor = NULL;
6628 SSL_CTX *sctx = SSL_CONNECTION_GET_CTX(sc);
6630 if (sctx->keylog_callback == NULL)
6634 * Our output buffer will contain the following strings, rendered with
6635 * space characters in between, terminated by a NULL character: first the
6636 * prefix, then the first parameter, then the second parameter. The
6637 * meaning of each parameter depends on the specific key material being
6638 * logged. Note that the first and second parameters are encoded in
6639 * hexadecimal, so we need a buffer that is twice their lengths.
6641 prefix_len = strlen(prefix);
6642 out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
6643 if ((out = cursor = OPENSSL_malloc(out_len)) == NULL)
6646 strcpy(cursor, prefix);
6647 cursor += prefix_len;
6650 for (i = 0; i < parameter_1_len; i++) {
6651 sprintf(cursor, "%02x", parameter_1[i]);
6656 for (i = 0; i < parameter_2_len; i++) {
6657 sprintf(cursor, "%02x", parameter_2[i]);
6662 sctx->keylog_callback(SSL_CONNECTION_GET_SSL(sc), (const char *)out);
6663 OPENSSL_clear_free(out, out_len);
6668 int ssl_log_rsa_client_key_exchange(SSL_CONNECTION *sc,
6669 const uint8_t *encrypted_premaster,
6670 size_t encrypted_premaster_len,
6671 const uint8_t *premaster,
6672 size_t premaster_len)
6674 if (encrypted_premaster_len < 8) {
6675 SSLfatal(sc, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6679 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
6680 return nss_keylog_int("RSA",
6682 encrypted_premaster,
6688 int ssl_log_secret(SSL_CONNECTION *sc,
6690 const uint8_t *secret,
6693 return nss_keylog_int(label,
6695 sc->s3.client_random,
6701 #define SSLV2_CIPHER_LEN 3
6703 int ssl_cache_cipherlist(SSL_CONNECTION *s, PACKET *cipher_suites, int sslv2format)
6707 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6709 if (PACKET_remaining(cipher_suites) == 0) {
6710 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6714 if (PACKET_remaining(cipher_suites) % n != 0) {
6715 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6719 OPENSSL_free(s->s3.tmp.ciphers_raw);
6720 s->s3.tmp.ciphers_raw = NULL;
6721 s->s3.tmp.ciphers_rawlen = 0;
6724 size_t numciphers = PACKET_remaining(cipher_suites) / n;
6725 PACKET sslv2ciphers = *cipher_suites;
6726 unsigned int leadbyte;
6730 * We store the raw ciphers list in SSLv3+ format so we need to do some
6731 * preprocessing to convert the list first. If there are any SSLv2 only
6732 * ciphersuites with a non-zero leading byte then we are going to
6733 * slightly over allocate because we won't store those. But that isn't a
6736 raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
6737 s->s3.tmp.ciphers_raw = raw;
6739 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6742 for (s->s3.tmp.ciphers_rawlen = 0;
6743 PACKET_remaining(&sslv2ciphers) > 0;
6744 raw += TLS_CIPHER_LEN) {
6745 if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
6747 && !PACKET_copy_bytes(&sslv2ciphers, raw,
6750 && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
6751 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_PACKET);
6752 OPENSSL_free(s->s3.tmp.ciphers_raw);
6753 s->s3.tmp.ciphers_raw = NULL;
6754 s->s3.tmp.ciphers_rawlen = 0;
6758 s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN;
6760 } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw,
6761 &s->s3.tmp.ciphers_rawlen)) {
6762 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6768 int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
6769 int isv2format, STACK_OF(SSL_CIPHER) **sk,
6770 STACK_OF(SSL_CIPHER) **scsvs)
6773 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6778 if (!PACKET_buf_init(&pkt, bytes, len))
6780 return ossl_bytes_to_cipher_list(sc, &pkt, sk, scsvs, isv2format, 0);
6783 int ossl_bytes_to_cipher_list(SSL_CONNECTION *s, PACKET *cipher_suites,
6784 STACK_OF(SSL_CIPHER) **skp,
6785 STACK_OF(SSL_CIPHER) **scsvs_out,
6786 int sslv2format, int fatal)
6788 const SSL_CIPHER *c;
6789 STACK_OF(SSL_CIPHER) *sk = NULL;
6790 STACK_OF(SSL_CIPHER) *scsvs = NULL;
6792 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
6793 unsigned char cipher[SSLV2_CIPHER_LEN];
6795 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6797 if (PACKET_remaining(cipher_suites) == 0) {
6799 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6801 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHERS_SPECIFIED);
6805 if (PACKET_remaining(cipher_suites) % n != 0) {
6807 SSLfatal(s, SSL_AD_DECODE_ERROR,
6808 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6810 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6814 sk = sk_SSL_CIPHER_new_null();
6815 scsvs = sk_SSL_CIPHER_new_null();
6816 if (sk == NULL || scsvs == NULL) {
6818 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6820 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6824 while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
6826 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
6827 * first byte set to zero, while true SSLv2 ciphers have a non-zero
6828 * first byte. We don't support any true SSLv2 ciphers, so skip them.
6830 if (sslv2format && cipher[0] != '\0')
6833 /* For SSLv2-compat, ignore leading 0-byte. */
6834 c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
6836 if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
6837 (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
6839 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6841 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6846 if (PACKET_remaining(cipher_suites) > 0) {
6848 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_LENGTH);
6850 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
6857 sk_SSL_CIPHER_free(sk);
6858 if (scsvs_out != NULL)
6861 sk_SSL_CIPHER_free(scsvs);
6864 sk_SSL_CIPHER_free(sk);
6865 sk_SSL_CIPHER_free(scsvs);
6869 int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
6871 ctx->max_early_data = max_early_data;
6876 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
6878 return ctx->max_early_data;
6881 int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
6883 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6885 if (sc == NULL || IS_QUIC_SSL(s))
6888 sc->max_early_data = max_early_data;
6893 uint32_t SSL_get_max_early_data(const SSL *s)
6895 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6900 return sc->max_early_data;
6903 int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
6905 ctx->recv_max_early_data = recv_max_early_data;
6910 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
6912 return ctx->recv_max_early_data;
6915 int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
6917 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6919 if (sc == NULL || IS_QUIC_SSL(s))
6922 sc->recv_max_early_data = recv_max_early_data;
6927 uint32_t SSL_get_recv_max_early_data(const SSL *s)
6929 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6934 return sc->recv_max_early_data;
6937 __owur unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION *sc)
6939 /* Return any active Max Fragment Len extension */
6940 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session))
6941 return GET_MAX_FRAGMENT_LENGTH(sc->session);
6943 /* return current SSL connection setting */
6944 return sc->max_send_fragment;
6947 __owur unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION *sc)
6949 /* Return a value regarding an active Max Fragment Len extension */
6950 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session)
6951 && sc->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(sc->session))
6952 return GET_MAX_FRAGMENT_LENGTH(sc->session);
6954 /* else limit |split_send_fragment| to current |max_send_fragment| */
6955 if (sc->split_send_fragment > sc->max_send_fragment)
6956 return sc->max_send_fragment;
6958 /* return current SSL connection setting */
6959 return sc->split_send_fragment;
6962 int SSL_stateless(SSL *s)
6965 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6967 /* TODO(QUIC): This will need further work. */
6971 /* Ensure there is no state left over from a previous invocation */
6977 sc->s3.flags |= TLS1_FLAGS_STATELESS;
6978 ret = SSL_accept(s);
6979 sc->s3.flags &= ~TLS1_FLAGS_STATELESS;
6981 if (ret > 0 && sc->ext.cookieok)
6984 if (sc->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(sc))
6990 void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
6992 ctx->pha_enabled = val;
6995 void SSL_set_post_handshake_auth(SSL *ssl, int val)
6997 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6998 #ifndef OPENSSL_NO_QUIC
6999 QUIC_CONNECTION *qc = QUIC_CONNECTION_FROM_SSL(ssl);
7008 sc->pha_enabled = val;
7011 int SSL_verify_client_post_handshake(SSL *ssl)
7013 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
7014 #ifndef OPENSSL_NO_QUIC
7015 QUIC_CONNECTION *qc = QUIC_CONNECTION_FROM_SSL(ssl);
7018 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
7026 if (!SSL_CONNECTION_IS_TLS13(sc)) {
7027 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
7031 ERR_raise(ERR_LIB_SSL, SSL_R_NOT_SERVER);
7035 if (!SSL_is_init_finished(ssl)) {
7036 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
7040 switch (sc->post_handshake_auth) {
7042 ERR_raise(ERR_LIB_SSL, SSL_R_EXTENSION_NOT_RECEIVED);
7045 case SSL_PHA_EXT_SENT:
7046 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
7048 case SSL_PHA_EXT_RECEIVED:
7050 case SSL_PHA_REQUEST_PENDING:
7051 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_PENDING);
7053 case SSL_PHA_REQUESTED:
7054 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_SENT);
7058 sc->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
7060 /* checks verify_mode and algorithm_auth */
7061 if (!send_certificate_request(sc)) {
7062 sc->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
7063 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CONFIG);
7067 ossl_statem_set_in_init(sc, 1);
7071 int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
7072 SSL_CTX_generate_session_ticket_fn gen_cb,
7073 SSL_CTX_decrypt_session_ticket_fn dec_cb,
7076 ctx->generate_ticket_cb = gen_cb;
7077 ctx->decrypt_ticket_cb = dec_cb;
7078 ctx->ticket_cb_data = arg;
7082 void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
7083 SSL_allow_early_data_cb_fn cb,
7086 ctx->allow_early_data_cb = cb;
7087 ctx->allow_early_data_cb_data = arg;
7090 void SSL_set_allow_early_data_cb(SSL *s,
7091 SSL_allow_early_data_cb_fn cb,
7094 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7096 if (sc == NULL || IS_QUIC_SSL(s))
7099 sc->allow_early_data_cb = cb;
7100 sc->allow_early_data_cb_data = arg;
7103 const EVP_CIPHER *ssl_evp_cipher_fetch(OSSL_LIB_CTX *libctx,
7105 const char *properties)
7107 const EVP_CIPHER *ciph;
7109 ciph = tls_get_cipher_from_engine(nid);
7114 * If there is no engine cipher then we do an explicit fetch. This may fail
7115 * and that could be ok
7118 ciph = EVP_CIPHER_fetch(libctx, OBJ_nid2sn(nid), properties);
7124 int ssl_evp_cipher_up_ref(const EVP_CIPHER *cipher)
7126 /* Don't up-ref an implicit EVP_CIPHER */
7127 if (EVP_CIPHER_get0_provider(cipher) == NULL)
7131 * The cipher was explicitly fetched and therefore it is safe to cast
7134 return EVP_CIPHER_up_ref((EVP_CIPHER *)cipher);
7137 void ssl_evp_cipher_free(const EVP_CIPHER *cipher)
7142 if (EVP_CIPHER_get0_provider(cipher) != NULL) {
7144 * The cipher was explicitly fetched and therefore it is safe to cast
7147 EVP_CIPHER_free((EVP_CIPHER *)cipher);
7151 const EVP_MD *ssl_evp_md_fetch(OSSL_LIB_CTX *libctx,
7153 const char *properties)
7157 md = tls_get_digest_from_engine(nid);
7161 /* Otherwise we do an explicit fetch */
7163 md = EVP_MD_fetch(libctx, OBJ_nid2sn(nid), properties);
7168 int ssl_evp_md_up_ref(const EVP_MD *md)
7170 /* Don't up-ref an implicit EVP_MD */
7171 if (EVP_MD_get0_provider(md) == NULL)
7175 * The digest was explicitly fetched and therefore it is safe to cast
7178 return EVP_MD_up_ref((EVP_MD *)md);
7181 void ssl_evp_md_free(const EVP_MD *md)
7186 if (EVP_MD_get0_provider(md) != NULL) {
7188 * The digest was explicitly fetched and therefore it is safe to cast
7191 EVP_MD_free((EVP_MD *)md);
7195 int SSL_set0_tmp_dh_pkey(SSL *s, EVP_PKEY *dhpkey)
7197 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7202 if (!ssl_security(sc, SSL_SECOP_TMP_DH,
7203 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
7204 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
7207 EVP_PKEY_free(sc->cert->dh_tmp);
7208 sc->cert->dh_tmp = dhpkey;
7212 int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX *ctx, EVP_PKEY *dhpkey)
7214 if (!ssl_ctx_security(ctx, SSL_SECOP_TMP_DH,
7215 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
7216 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
7219 EVP_PKEY_free(ctx->cert->dh_tmp);
7220 ctx->cert->dh_tmp = dhpkey;
7224 /* QUIC-specific methods which are supported on QUIC connections only. */
7225 int SSL_handle_events(SSL *s)
7229 #ifndef OPENSSL_NO_QUIC
7231 return ossl_quic_handle_events(s);
7234 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7235 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc))
7237 * DTLSv1_handle_timeout returns 0 if the timer wasn't expired yet,
7238 * which we consider a success case. Theoretically DTLSv1_handle_timeout
7239 * can also return 0 if s is NULL or not a DTLS object, but we've
7240 * already ruled out those possibilities above, so this is not possible
7241 * here. Thus the only failure cases are where DTLSv1_handle_timeout
7244 return DTLSv1_handle_timeout(s) >= 0;
7249 int SSL_get_event_timeout(SSL *s, struct timeval *tv, int *is_infinite)
7253 #ifndef OPENSSL_NO_QUIC
7255 return ossl_quic_get_event_timeout(s, tv, is_infinite);
7258 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7259 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc)
7260 && DTLSv1_get_timeout(s, tv)) {
7265 tv->tv_sec = 1000000;
7271 int SSL_get_rpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7273 #ifndef OPENSSL_NO_QUIC
7277 return ossl_quic_get_rpoll_descriptor(s, desc);
7283 int SSL_get_wpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7285 #ifndef OPENSSL_NO_QUIC
7289 return ossl_quic_get_wpoll_descriptor(s, desc);
7295 int SSL_net_read_desired(SSL *s)
7297 #ifndef OPENSSL_NO_QUIC
7301 return ossl_quic_get_net_read_desired(s);
7307 int SSL_net_write_desired(SSL *s)
7309 #ifndef OPENSSL_NO_QUIC
7313 return ossl_quic_get_net_write_desired(s);
7319 int SSL_set_blocking_mode(SSL *s, int blocking)
7321 #ifndef OPENSSL_NO_QUIC
7325 return ossl_quic_conn_set_blocking_mode(s, blocking);
7331 int SSL_get_blocking_mode(SSL *s)
7333 #ifndef OPENSSL_NO_QUIC
7337 return ossl_quic_conn_get_blocking_mode(s);
7343 int SSL_set_initial_peer_addr(SSL *s, const BIO_ADDR *peer_addr)
7345 #ifndef OPENSSL_NO_QUIC
7349 return ossl_quic_conn_set_initial_peer_addr(s, peer_addr);
7355 int SSL_shutdown_ex(SSL *ssl, uint64_t flags,
7356 const SSL_SHUTDOWN_EX_ARGS *args,
7359 #ifndef OPENSSL_NO_QUIC
7361 return SSL_shutdown(ssl);
7363 return ossl_quic_conn_shutdown(ssl, flags, args, args_len);
7365 return SSL_shutdown(ssl);
7369 int SSL_stream_conclude(SSL *ssl, uint64_t flags)
7371 #ifndef OPENSSL_NO_QUIC
7375 return ossl_quic_conn_stream_conclude(ssl);
7381 SSL *SSL_new_stream(SSL *s, uint64_t flags)
7383 #ifndef OPENSSL_NO_QUIC
7387 return ossl_quic_conn_stream_new(s, flags);
7393 SSL *SSL_get0_connection(SSL *s)
7395 #ifndef OPENSSL_NO_QUIC
7399 return ossl_quic_get0_connection(s);
7405 int SSL_is_connection(SSL *s)
7407 return SSL_get0_connection(s) == s;
7410 int SSL_get_stream_type(SSL *s)
7412 #ifndef OPENSSL_NO_QUIC
7414 return SSL_STREAM_TYPE_BIDI;
7416 return ossl_quic_get_stream_type(s);
7418 return SSL_STREAM_TYPE_BIDI;
7422 uint64_t SSL_get_stream_id(SSL *s)
7424 #ifndef OPENSSL_NO_QUIC
7428 return ossl_quic_get_stream_id(s);
7434 int SSL_set_default_stream_mode(SSL *s, uint32_t mode)
7436 #ifndef OPENSSL_NO_QUIC
7440 return ossl_quic_set_default_stream_mode(s, mode);
7446 int SSL_set_incoming_stream_policy(SSL *s, int policy, uint64_t aec)
7448 #ifndef OPENSSL_NO_QUIC
7452 return ossl_quic_set_incoming_stream_policy(s, policy, aec);
7458 SSL *SSL_accept_stream(SSL *s, uint64_t flags)
7460 #ifndef OPENSSL_NO_QUIC
7464 return ossl_quic_accept_stream(s, flags);
7470 size_t SSL_get_accept_stream_queue_len(SSL *s)
7472 #ifndef OPENSSL_NO_QUIC
7476 return ossl_quic_get_accept_stream_queue_len(s);
7482 int SSL_stream_reset(SSL *s,
7483 const SSL_STREAM_RESET_ARGS *args,
7486 #ifndef OPENSSL_NO_QUIC
7490 return ossl_quic_stream_reset(s, args, args_len);
7496 int SSL_get_stream_read_state(SSL *s)
7498 #ifndef OPENSSL_NO_QUIC
7500 return SSL_STREAM_STATE_NONE;
7502 return ossl_quic_get_stream_read_state(s);
7504 return SSL_STREAM_STATE_NONE;
7508 int SSL_get_stream_write_state(SSL *s)
7510 #ifndef OPENSSL_NO_QUIC
7512 return SSL_STREAM_STATE_NONE;
7514 return ossl_quic_get_stream_write_state(s);
7516 return SSL_STREAM_STATE_NONE;
7520 int SSL_get_stream_read_error_code(SSL *s, uint64_t *app_error_code)
7522 #ifndef OPENSSL_NO_QUIC
7526 return ossl_quic_get_stream_read_error_code(s, app_error_code);
7532 int SSL_get_stream_write_error_code(SSL *s, uint64_t *app_error_code)
7534 #ifndef OPENSSL_NO_QUIC
7538 return ossl_quic_get_stream_write_error_code(s, app_error_code);
7544 int SSL_get_conn_close_info(SSL *s, SSL_CONN_CLOSE_INFO *info,
7547 #ifndef OPENSSL_NO_QUIC
7551 return ossl_quic_get_conn_close_info(s, info, info_len);
7557 int SSL_add_expected_rpk(SSL *s, EVP_PKEY *rpk)
7559 unsigned char *data = NULL;
7560 SSL_DANE *dane = SSL_get0_dane(s);
7563 if (dane == NULL || dane->dctx == NULL)
7565 if ((ret = i2d_PUBKEY(rpk, &data)) <= 0)
7568 ret = SSL_dane_tlsa_add(s, DANETLS_USAGE_DANE_EE,
7569 DANETLS_SELECTOR_SPKI,
7570 DANETLS_MATCHING_FULL,
7571 data, (size_t)ret) > 0;
7576 EVP_PKEY *SSL_get0_peer_rpk(const SSL *s)
7578 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7580 if (sc == NULL || sc->session == NULL)
7582 return sc->session->peer_rpk;
7585 int SSL_get_negotiated_client_cert_type(const SSL *s)
7587 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7592 return sc->ext.client_cert_type;
7595 int SSL_get_negotiated_server_cert_type(const SSL *s)
7597 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7602 return sc->ext.server_cert_type;
7605 static int validate_cert_type(const unsigned char *val, size_t len)
7611 if (val == NULL && len == 0)
7614 if (val == NULL || len == 0)
7617 for (i = 0; i < len; i++) {
7619 case TLSEXT_cert_type_rpk:
7624 case TLSEXT_cert_type_x509:
7629 case TLSEXT_cert_type_pgp:
7630 case TLSEXT_cert_type_1609dot2:
7638 static int set_cert_type(unsigned char **cert_type,
7639 size_t *cert_type_len,
7640 const unsigned char *val,
7643 unsigned char *tmp = NULL;
7645 if (!validate_cert_type(val, len))
7648 if (val != NULL && (tmp = OPENSSL_memdup(val, len)) == NULL)
7651 OPENSSL_free(*cert_type);
7653 *cert_type_len = len;
7657 int SSL_set1_client_cert_type(SSL *s, const unsigned char *val, size_t len)
7659 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7661 return set_cert_type(&sc->client_cert_type, &sc->client_cert_type_len,
7665 int SSL_set1_server_cert_type(SSL *s, const unsigned char *val, size_t len)
7667 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7669 return set_cert_type(&sc->server_cert_type, &sc->server_cert_type_len,
7673 int SSL_CTX_set1_client_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7675 return set_cert_type(&ctx->client_cert_type, &ctx->client_cert_type_len,
7679 int SSL_CTX_set1_server_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7681 return set_cert_type(&ctx->server_cert_type, &ctx->server_cert_type_len,
7685 int SSL_get0_client_cert_type(const SSL *s, unsigned char **t, size_t *len)
7687 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7689 if (t == NULL || len == NULL)
7692 *t = sc->client_cert_type;
7693 *len = sc->client_cert_type_len;
7697 int SSL_get0_server_cert_type(const SSL *s, unsigned char **t, size_t *len)
7699 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7701 if (t == NULL || len == NULL)
7704 *t = sc->server_cert_type;
7705 *len = sc->server_cert_type_len;
7709 int SSL_CTX_get0_client_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7711 if (t == NULL || len == NULL)
7714 *t = ctx->client_cert_type;
7715 *len = ctx->client_cert_type_len;
7719 int SSL_CTX_get0_server_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7721 if (t == NULL || len == NULL)
7724 *t = ctx->server_cert_type;
7725 *len = ctx->server_cert_type_len;