2 * Copyright 1995-2018 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
15 #include <openssl/objects.h>
16 #include <openssl/x509v3.h>
17 #include <openssl/rand.h>
18 #include <openssl/rand_drbg.h>
19 #include <openssl/ocsp.h>
20 #include <openssl/dh.h>
21 #include <openssl/engine.h>
22 #include <openssl/async.h>
23 #include <openssl/ct.h>
24 #include <openssl/trace.h>
25 #include "internal/cryptlib.h"
26 #include "internal/refcount.h"
27 #include "internal/ktls.h"
29 static int ssl_undefined_function_1(SSL *ssl, SSL3_RECORD *r, size_t s, int t)
34 return ssl_undefined_function(ssl);
37 static int ssl_undefined_function_2(SSL *ssl, SSL3_RECORD *r, unsigned char *s,
43 return ssl_undefined_function(ssl);
46 static int ssl_undefined_function_3(SSL *ssl, unsigned char *r,
47 unsigned char *s, size_t t, size_t *u)
53 return ssl_undefined_function(ssl);
56 static int ssl_undefined_function_4(SSL *ssl, int r)
59 return ssl_undefined_function(ssl);
62 static size_t ssl_undefined_function_5(SSL *ssl, const char *r, size_t s,
68 return ssl_undefined_function(ssl);
71 static int ssl_undefined_function_6(int r)
74 return ssl_undefined_function(NULL);
77 static int ssl_undefined_function_7(SSL *ssl, unsigned char *r, size_t s,
78 const char *t, size_t u,
79 const unsigned char *v, size_t w, int x)
88 return ssl_undefined_function(ssl);
91 SSL3_ENC_METHOD ssl3_undef_enc_method = {
92 ssl_undefined_function_1,
93 ssl_undefined_function_2,
94 ssl_undefined_function,
95 ssl_undefined_function_3,
96 ssl_undefined_function_4,
97 ssl_undefined_function_5,
98 NULL, /* client_finished_label */
99 0, /* client_finished_label_len */
100 NULL, /* server_finished_label */
101 0, /* server_finished_label_len */
102 ssl_undefined_function_6,
103 ssl_undefined_function_7,
106 struct ssl_async_args {
110 enum { READFUNC, WRITEFUNC, OTHERFUNC } type;
112 int (*func_read) (SSL *, void *, size_t, size_t *);
113 int (*func_write) (SSL *, const void *, size_t, size_t *);
114 int (*func_other) (SSL *);
118 static const struct {
124 DANETLS_MATCHING_FULL, 0, NID_undef
127 DANETLS_MATCHING_2256, 1, NID_sha256
130 DANETLS_MATCHING_2512, 2, NID_sha512
134 static int dane_ctx_enable(struct dane_ctx_st *dctx)
136 const EVP_MD **mdevp;
138 uint8_t mdmax = DANETLS_MATCHING_LAST;
139 int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */
142 if (dctx->mdevp != NULL)
145 mdevp = OPENSSL_zalloc(n * sizeof(*mdevp));
146 mdord = OPENSSL_zalloc(n * sizeof(*mdord));
148 if (mdord == NULL || mdevp == NULL) {
151 SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE);
155 /* Install default entries */
156 for (i = 0; i < OSSL_NELEM(dane_mds); ++i) {
159 if (dane_mds[i].nid == NID_undef ||
160 (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL)
162 mdevp[dane_mds[i].mtype] = md;
163 mdord[dane_mds[i].mtype] = dane_mds[i].ord;
173 static void dane_ctx_final(struct dane_ctx_st *dctx)
175 OPENSSL_free(dctx->mdevp);
178 OPENSSL_free(dctx->mdord);
183 static void tlsa_free(danetls_record *t)
187 OPENSSL_free(t->data);
188 EVP_PKEY_free(t->spki);
192 static void dane_final(SSL_DANE *dane)
194 sk_danetls_record_pop_free(dane->trecs, tlsa_free);
197 sk_X509_pop_free(dane->certs, X509_free);
200 X509_free(dane->mcert);
208 * dane_copy - Copy dane configuration, sans verification state.
210 static int ssl_dane_dup(SSL *to, SSL *from)
215 if (!DANETLS_ENABLED(&from->dane))
218 num = sk_danetls_record_num(from->dane.trecs);
219 dane_final(&to->dane);
220 to->dane.flags = from->dane.flags;
221 to->dane.dctx = &to->ctx->dane;
222 to->dane.trecs = sk_danetls_record_new_reserve(NULL, num);
224 if (to->dane.trecs == NULL) {
225 SSLerr(SSL_F_SSL_DANE_DUP, ERR_R_MALLOC_FAILURE);
229 for (i = 0; i < num; ++i) {
230 danetls_record *t = sk_danetls_record_value(from->dane.trecs, i);
232 if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype,
233 t->data, t->dlen) <= 0)
239 static int dane_mtype_set(struct dane_ctx_st *dctx,
240 const EVP_MD *md, uint8_t mtype, uint8_t ord)
244 if (mtype == DANETLS_MATCHING_FULL && md != NULL) {
245 SSLerr(SSL_F_DANE_MTYPE_SET, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL);
249 if (mtype > dctx->mdmax) {
250 const EVP_MD **mdevp;
252 int n = ((int)mtype) + 1;
254 mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp));
256 SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE);
261 mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord));
263 SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE);
268 /* Zero-fill any gaps */
269 for (i = dctx->mdmax + 1; i < mtype; ++i) {
277 dctx->mdevp[mtype] = md;
278 /* Coerce ordinal of disabled matching types to 0 */
279 dctx->mdord[mtype] = (md == NULL) ? 0 : ord;
284 static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype)
286 if (mtype > dane->dctx->mdmax)
288 return dane->dctx->mdevp[mtype];
291 static int dane_tlsa_add(SSL_DANE *dane,
294 uint8_t mtype, unsigned const char *data, size_t dlen)
297 const EVP_MD *md = NULL;
298 int ilen = (int)dlen;
302 if (dane->trecs == NULL) {
303 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED);
307 if (ilen < 0 || dlen != (size_t)ilen) {
308 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH);
312 if (usage > DANETLS_USAGE_LAST) {
313 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE);
317 if (selector > DANETLS_SELECTOR_LAST) {
318 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR);
322 if (mtype != DANETLS_MATCHING_FULL) {
323 md = tlsa_md_get(dane, mtype);
325 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE);
330 if (md != NULL && dlen != (size_t)EVP_MD_size(md)) {
331 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH);
335 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA);
339 if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) {
340 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
345 t->selector = selector;
347 t->data = OPENSSL_malloc(dlen);
348 if (t->data == NULL) {
350 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
353 memcpy(t->data, data, dlen);
356 /* Validate and cache full certificate or public key */
357 if (mtype == DANETLS_MATCHING_FULL) {
358 const unsigned char *p = data;
360 EVP_PKEY *pkey = NULL;
363 case DANETLS_SELECTOR_CERT:
364 if (!d2i_X509(&cert, &p, ilen) || p < data ||
365 dlen != (size_t)(p - data)) {
367 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
370 if (X509_get0_pubkey(cert) == NULL) {
372 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
376 if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
382 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
383 * records that contain full certificates of trust-anchors that are
384 * not present in the wire chain. For usage PKIX-TA(0), we augment
385 * the chain with untrusted Full(0) certificates from DNS, in case
386 * they are missing from the chain.
388 if ((dane->certs == NULL &&
389 (dane->certs = sk_X509_new_null()) == NULL) ||
390 !sk_X509_push(dane->certs, cert)) {
391 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
398 case DANETLS_SELECTOR_SPKI:
399 if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data ||
400 dlen != (size_t)(p - data)) {
402 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
407 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
408 * records that contain full bare keys of trust-anchors that are
409 * not present in the wire chain.
411 if (usage == DANETLS_USAGE_DANE_TA)
420 * Find the right insertion point for the new record.
422 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
423 * they can be processed first, as they require no chain building, and no
424 * expiration or hostname checks. Because DANE-EE(3) is numerically
425 * largest, this is accomplished via descending sort by "usage".
427 * We also sort in descending order by matching ordinal to simplify
428 * the implementation of digest agility in the verification code.
430 * The choice of order for the selector is not significant, so we
431 * use the same descending order for consistency.
433 num = sk_danetls_record_num(dane->trecs);
434 for (i = 0; i < num; ++i) {
435 danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
437 if (rec->usage > usage)
439 if (rec->usage < usage)
441 if (rec->selector > selector)
443 if (rec->selector < selector)
445 if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
450 if (!sk_danetls_record_insert(dane->trecs, t, i)) {
452 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
455 dane->umask |= DANETLS_USAGE_BIT(usage);
461 * Return 0 if there is only one version configured and it was disabled
462 * at configure time. Return 1 otherwise.
464 static int ssl_check_allowed_versions(int min_version, int max_version)
466 int minisdtls = 0, maxisdtls = 0;
468 /* Figure out if we're doing DTLS versions or TLS versions */
469 if (min_version == DTLS1_BAD_VER
470 || min_version >> 8 == DTLS1_VERSION_MAJOR)
472 if (max_version == DTLS1_BAD_VER
473 || max_version >> 8 == DTLS1_VERSION_MAJOR)
475 /* A wildcard version of 0 could be DTLS or TLS. */
476 if ((minisdtls && !maxisdtls && max_version != 0)
477 || (maxisdtls && !minisdtls && min_version != 0)) {
478 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
482 if (minisdtls || maxisdtls) {
483 /* Do DTLS version checks. */
484 if (min_version == 0)
485 /* Ignore DTLS1_BAD_VER */
486 min_version = DTLS1_VERSION;
487 if (max_version == 0)
488 max_version = DTLS1_2_VERSION;
489 #ifdef OPENSSL_NO_DTLS1_2
490 if (max_version == DTLS1_2_VERSION)
491 max_version = DTLS1_VERSION;
493 #ifdef OPENSSL_NO_DTLS1
494 if (min_version == DTLS1_VERSION)
495 min_version = DTLS1_2_VERSION;
497 /* Done massaging versions; do the check. */
499 #ifdef OPENSSL_NO_DTLS1
500 || (DTLS_VERSION_GE(min_version, DTLS1_VERSION)
501 && DTLS_VERSION_GE(DTLS1_VERSION, max_version))
503 #ifdef OPENSSL_NO_DTLS1_2
504 || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION)
505 && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version))
510 /* Regular TLS version checks. */
511 if (min_version == 0)
512 min_version = SSL3_VERSION;
513 if (max_version == 0)
514 max_version = TLS1_3_VERSION;
515 #ifdef OPENSSL_NO_TLS1_3
516 if (max_version == TLS1_3_VERSION)
517 max_version = TLS1_2_VERSION;
519 #ifdef OPENSSL_NO_TLS1_2
520 if (max_version == TLS1_2_VERSION)
521 max_version = TLS1_1_VERSION;
523 #ifdef OPENSSL_NO_TLS1_1
524 if (max_version == TLS1_1_VERSION)
525 max_version = TLS1_VERSION;
527 #ifdef OPENSSL_NO_TLS1
528 if (max_version == TLS1_VERSION)
529 max_version = SSL3_VERSION;
531 #ifdef OPENSSL_NO_SSL3
532 if (min_version == SSL3_VERSION)
533 min_version = TLS1_VERSION;
535 #ifdef OPENSSL_NO_TLS1
536 if (min_version == TLS1_VERSION)
537 min_version = TLS1_1_VERSION;
539 #ifdef OPENSSL_NO_TLS1_1
540 if (min_version == TLS1_1_VERSION)
541 min_version = TLS1_2_VERSION;
543 #ifdef OPENSSL_NO_TLS1_2
544 if (min_version == TLS1_2_VERSION)
545 min_version = TLS1_3_VERSION;
547 /* Done massaging versions; do the check. */
549 #ifdef OPENSSL_NO_SSL3
550 || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version)
552 #ifdef OPENSSL_NO_TLS1
553 || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version)
555 #ifdef OPENSSL_NO_TLS1_1
556 || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version)
558 #ifdef OPENSSL_NO_TLS1_2
559 || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version)
561 #ifdef OPENSSL_NO_TLS1_3
562 || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version)
570 static void clear_ciphers(SSL *s)
572 /* clear the current cipher */
573 ssl_clear_cipher_ctx(s);
574 ssl_clear_hash_ctx(&s->read_hash);
575 ssl_clear_hash_ctx(&s->write_hash);
578 int SSL_clear(SSL *s)
580 if (s->method == NULL) {
581 SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED);
585 if (ssl_clear_bad_session(s)) {
586 SSL_SESSION_free(s->session);
589 SSL_SESSION_free(s->psksession);
590 s->psksession = NULL;
591 OPENSSL_free(s->psksession_id);
592 s->psksession_id = NULL;
593 s->psksession_id_len = 0;
594 s->hello_retry_request = 0;
601 if (s->renegotiate) {
602 SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR);
606 ossl_statem_clear(s);
608 s->version = s->method->version;
609 s->client_version = s->version;
610 s->rwstate = SSL_NOTHING;
612 BUF_MEM_free(s->init_buf);
617 s->key_update = SSL_KEY_UPDATE_NONE;
619 EVP_MD_CTX_free(s->pha_dgst);
622 /* Reset DANE verification result state */
625 X509_free(s->dane.mcert);
626 s->dane.mcert = NULL;
627 s->dane.mtlsa = NULL;
629 /* Clear the verification result peername */
630 X509_VERIFY_PARAM_move_peername(s->param, NULL);
633 * Check to see if we were changed into a different method, if so, revert
636 if (s->method != s->ctx->method) {
637 s->method->ssl_free(s);
638 s->method = s->ctx->method;
639 if (!s->method->ssl_new(s))
642 if (!s->method->ssl_clear(s))
646 RECORD_LAYER_clear(&s->rlayer);
651 /** Used to change an SSL_CTXs default SSL method type */
652 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
654 STACK_OF(SSL_CIPHER) *sk;
658 if (!SSL_CTX_set_ciphersuites(ctx, OSSL_default_ciphersuites())) {
659 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
662 sk = ssl_create_cipher_list(ctx->method,
663 ctx->tls13_ciphersuites,
665 &(ctx->cipher_list_by_id),
666 OSSL_default_cipher_list(), ctx->cert);
667 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
668 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
674 SSL *SSL_new(SSL_CTX *ctx)
679 SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
682 if (ctx->method == NULL) {
683 SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
687 s = OPENSSL_zalloc(sizeof(*s));
692 s->lock = CRYPTO_THREAD_lock_new();
693 if (s->lock == NULL) {
699 RECORD_LAYER_init(&s->rlayer, s);
701 s->options = ctx->options;
702 s->dane.flags = ctx->dane.flags;
703 s->min_proto_version = ctx->min_proto_version;
704 s->max_proto_version = ctx->max_proto_version;
706 s->max_cert_list = ctx->max_cert_list;
707 s->max_early_data = ctx->max_early_data;
708 s->recv_max_early_data = ctx->recv_max_early_data;
709 s->num_tickets = ctx->num_tickets;
710 s->pha_enabled = ctx->pha_enabled;
712 /* Shallow copy of the ciphersuites stack */
713 s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
714 if (s->tls13_ciphersuites == NULL)
718 * Earlier library versions used to copy the pointer to the CERT, not
719 * its contents; only when setting new parameters for the per-SSL
720 * copy, ssl_cert_new would be called (and the direct reference to
721 * the per-SSL_CTX settings would be lost, but those still were
722 * indirectly accessed for various purposes, and for that reason they
723 * used to be known as s->ctx->default_cert). Now we don't look at the
724 * SSL_CTX's CERT after having duplicated it once.
726 s->cert = ssl_cert_dup(ctx->cert);
730 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
731 s->msg_callback = ctx->msg_callback;
732 s->msg_callback_arg = ctx->msg_callback_arg;
733 s->verify_mode = ctx->verify_mode;
734 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
735 s->record_padding_cb = ctx->record_padding_cb;
736 s->record_padding_arg = ctx->record_padding_arg;
737 s->block_padding = ctx->block_padding;
738 s->sid_ctx_length = ctx->sid_ctx_length;
739 if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
741 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
742 s->verify_callback = ctx->default_verify_callback;
743 s->generate_session_id = ctx->generate_session_id;
745 s->param = X509_VERIFY_PARAM_new();
746 if (s->param == NULL)
748 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
749 s->quiet_shutdown = ctx->quiet_shutdown;
751 s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
752 s->max_send_fragment = ctx->max_send_fragment;
753 s->split_send_fragment = ctx->split_send_fragment;
754 s->max_pipelines = ctx->max_pipelines;
755 if (s->max_pipelines > 1)
756 RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
757 if (ctx->default_read_buf_len > 0)
758 SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len);
763 s->ext.debug_arg = NULL;
764 s->ext.ticket_expected = 0;
765 s->ext.status_type = ctx->ext.status_type;
766 s->ext.status_expected = 0;
767 s->ext.ocsp.ids = NULL;
768 s->ext.ocsp.exts = NULL;
769 s->ext.ocsp.resp = NULL;
770 s->ext.ocsp.resp_len = 0;
772 s->session_ctx = ctx;
773 #ifndef OPENSSL_NO_EC
774 if (ctx->ext.ecpointformats) {
775 s->ext.ecpointformats =
776 OPENSSL_memdup(ctx->ext.ecpointformats,
777 ctx->ext.ecpointformats_len);
778 if (!s->ext.ecpointformats)
780 s->ext.ecpointformats_len =
781 ctx->ext.ecpointformats_len;
784 if (ctx->ext.supportedgroups) {
785 s->ext.supportedgroups =
786 OPENSSL_memdup(ctx->ext.supportedgroups,
787 ctx->ext.supportedgroups_len
788 * sizeof(*ctx->ext.supportedgroups));
789 if (!s->ext.supportedgroups)
791 s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
794 #ifndef OPENSSL_NO_NEXTPROTONEG
798 if (s->ctx->ext.alpn) {
799 s->ext.alpn = OPENSSL_malloc(s->ctx->ext.alpn_len);
800 if (s->ext.alpn == NULL)
802 memcpy(s->ext.alpn, s->ctx->ext.alpn, s->ctx->ext.alpn_len);
803 s->ext.alpn_len = s->ctx->ext.alpn_len;
806 s->verified_chain = NULL;
807 s->verify_result = X509_V_OK;
809 s->default_passwd_callback = ctx->default_passwd_callback;
810 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
812 s->method = ctx->method;
814 s->key_update = SSL_KEY_UPDATE_NONE;
816 s->allow_early_data_cb = ctx->allow_early_data_cb;
817 s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
819 if (!s->method->ssl_new(s))
822 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
827 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data))
830 #ifndef OPENSSL_NO_PSK
831 s->psk_client_callback = ctx->psk_client_callback;
832 s->psk_server_callback = ctx->psk_server_callback;
834 s->psk_find_session_cb = ctx->psk_find_session_cb;
835 s->psk_use_session_cb = ctx->psk_use_session_cb;
837 s->async_cb = ctx->async_cb;
838 s->async_cb_arg = ctx->async_cb_arg;
842 #ifndef OPENSSL_NO_CT
843 if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback,
844 ctx->ct_validation_callback_arg))
851 SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
855 int SSL_is_dtls(const SSL *s)
857 return SSL_IS_DTLS(s) ? 1 : 0;
860 int SSL_up_ref(SSL *s)
864 if (CRYPTO_UP_REF(&s->references, &i, s->lock) <= 0)
867 REF_PRINT_COUNT("SSL", s);
868 REF_ASSERT_ISNT(i < 2);
869 return ((i > 1) ? 1 : 0);
872 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
873 unsigned int sid_ctx_len)
875 if (sid_ctx_len > sizeof(ctx->sid_ctx)) {
876 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
877 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
880 ctx->sid_ctx_length = sid_ctx_len;
881 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
886 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
887 unsigned int sid_ctx_len)
889 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
890 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
891 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
894 ssl->sid_ctx_length = sid_ctx_len;
895 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
900 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
902 CRYPTO_THREAD_write_lock(ctx->lock);
903 ctx->generate_session_id = cb;
904 CRYPTO_THREAD_unlock(ctx->lock);
908 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
910 CRYPTO_THREAD_write_lock(ssl->lock);
911 ssl->generate_session_id = cb;
912 CRYPTO_THREAD_unlock(ssl->lock);
916 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
920 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
921 * we can "construct" a session to give us the desired check - i.e. to
922 * find if there's a session in the hash table that would conflict with
923 * any new session built out of this id/id_len and the ssl_version in use
928 if (id_len > sizeof(r.session_id))
931 r.ssl_version = ssl->version;
932 r.session_id_length = id_len;
933 memcpy(r.session_id, id, id_len);
935 CRYPTO_THREAD_read_lock(ssl->session_ctx->lock);
936 p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r);
937 CRYPTO_THREAD_unlock(ssl->session_ctx->lock);
941 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
943 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
946 int SSL_set_purpose(SSL *s, int purpose)
948 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
951 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
953 return X509_VERIFY_PARAM_set_trust(s->param, trust);
956 int SSL_set_trust(SSL *s, int trust)
958 return X509_VERIFY_PARAM_set_trust(s->param, trust);
961 int SSL_set1_host(SSL *s, const char *hostname)
963 return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0);
966 int SSL_add1_host(SSL *s, const char *hostname)
968 return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0);
971 void SSL_set_hostflags(SSL *s, unsigned int flags)
973 X509_VERIFY_PARAM_set_hostflags(s->param, flags);
976 const char *SSL_get0_peername(SSL *s)
978 return X509_VERIFY_PARAM_get0_peername(s->param);
981 int SSL_CTX_dane_enable(SSL_CTX *ctx)
983 return dane_ctx_enable(&ctx->dane);
986 unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
988 unsigned long orig = ctx->dane.flags;
990 ctx->dane.flags |= flags;
994 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
996 unsigned long orig = ctx->dane.flags;
998 ctx->dane.flags &= ~flags;
1002 int SSL_dane_enable(SSL *s, const char *basedomain)
1004 SSL_DANE *dane = &s->dane;
1006 if (s->ctx->dane.mdmax == 0) {
1007 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED);
1010 if (dane->trecs != NULL) {
1011 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED);
1016 * Default SNI name. This rejects empty names, while set1_host below
1017 * accepts them and disables host name checks. To avoid side-effects with
1018 * invalid input, set the SNI name first.
1020 if (s->ext.hostname == NULL) {
1021 if (!SSL_set_tlsext_host_name(s, basedomain)) {
1022 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1027 /* Primary RFC6125 reference identifier */
1028 if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) {
1029 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1035 dane->dctx = &s->ctx->dane;
1036 dane->trecs = sk_danetls_record_new_null();
1038 if (dane->trecs == NULL) {
1039 SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE);
1045 unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
1047 unsigned long orig = ssl->dane.flags;
1049 ssl->dane.flags |= flags;
1053 unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
1055 unsigned long orig = ssl->dane.flags;
1057 ssl->dane.flags &= ~flags;
1061 int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
1063 SSL_DANE *dane = &s->dane;
1065 if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK)
1069 *mcert = dane->mcert;
1071 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
1076 int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
1077 uint8_t *mtype, unsigned const char **data, size_t *dlen)
1079 SSL_DANE *dane = &s->dane;
1081 if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK)
1085 *usage = dane->mtlsa->usage;
1087 *selector = dane->mtlsa->selector;
1089 *mtype = dane->mtlsa->mtype;
1091 *data = dane->mtlsa->data;
1093 *dlen = dane->mtlsa->dlen;
1098 SSL_DANE *SSL_get0_dane(SSL *s)
1103 int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
1104 uint8_t mtype, unsigned const char *data, size_t dlen)
1106 return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen);
1109 int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
1112 return dane_mtype_set(&ctx->dane, md, mtype, ord);
1115 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
1117 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
1120 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
1122 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
1125 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
1130 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
1135 void SSL_certs_clear(SSL *s)
1137 ssl_cert_clear_certs(s->cert);
1140 void SSL_free(SSL *s)
1146 CRYPTO_DOWN_REF(&s->references, &i, s->lock);
1147 REF_PRINT_COUNT("SSL", s);
1150 REF_ASSERT_ISNT(i < 0);
1152 X509_VERIFY_PARAM_free(s->param);
1153 dane_final(&s->dane);
1154 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1156 RECORD_LAYER_release(&s->rlayer);
1158 /* Ignore return value */
1159 ssl_free_wbio_buffer(s);
1161 BIO_free_all(s->wbio);
1163 BIO_free_all(s->rbio);
1166 BUF_MEM_free(s->init_buf);
1168 /* add extra stuff */
1169 sk_SSL_CIPHER_free(s->cipher_list);
1170 sk_SSL_CIPHER_free(s->cipher_list_by_id);
1171 sk_SSL_CIPHER_free(s->tls13_ciphersuites);
1172 sk_SSL_CIPHER_free(s->peer_ciphers);
1174 /* Make the next call work :-) */
1175 if (s->session != NULL) {
1176 ssl_clear_bad_session(s);
1177 SSL_SESSION_free(s->session);
1179 SSL_SESSION_free(s->psksession);
1180 OPENSSL_free(s->psksession_id);
1184 ssl_cert_free(s->cert);
1185 /* Free up if allocated */
1187 OPENSSL_free(s->ext.hostname);
1188 SSL_CTX_free(s->session_ctx);
1189 #ifndef OPENSSL_NO_EC
1190 OPENSSL_free(s->ext.ecpointformats);
1191 OPENSSL_free(s->ext.supportedgroups);
1192 OPENSSL_free(s->ext.peer_supportedgroups);
1193 #endif /* OPENSSL_NO_EC */
1194 sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
1195 #ifndef OPENSSL_NO_OCSP
1196 sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
1198 #ifndef OPENSSL_NO_CT
1199 SCT_LIST_free(s->scts);
1200 OPENSSL_free(s->ext.scts);
1202 OPENSSL_free(s->ext.ocsp.resp);
1203 OPENSSL_free(s->ext.alpn);
1204 OPENSSL_free(s->ext.tls13_cookie);
1205 OPENSSL_free(s->clienthello);
1206 OPENSSL_free(s->pha_context);
1207 EVP_MD_CTX_free(s->pha_dgst);
1209 sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
1210 sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
1212 sk_X509_pop_free(s->verified_chain, X509_free);
1214 if (s->method != NULL)
1215 s->method->ssl_free(s);
1217 SSL_CTX_free(s->ctx);
1219 ASYNC_WAIT_CTX_free(s->waitctx);
1221 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1222 OPENSSL_free(s->ext.npn);
1225 #ifndef OPENSSL_NO_SRTP
1226 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
1229 CRYPTO_THREAD_lock_free(s->lock);
1234 void SSL_set0_rbio(SSL *s, BIO *rbio)
1236 BIO_free_all(s->rbio);
1240 void SSL_set0_wbio(SSL *s, BIO *wbio)
1243 * If the output buffering BIO is still in place, remove it
1245 if (s->bbio != NULL)
1246 s->wbio = BIO_pop(s->wbio);
1248 BIO_free_all(s->wbio);
1251 /* Re-attach |bbio| to the new |wbio|. */
1252 if (s->bbio != NULL)
1253 s->wbio = BIO_push(s->bbio, s->wbio);
1256 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1259 * For historical reasons, this function has many different cases in
1260 * ownership handling.
1263 /* If nothing has changed, do nothing */
1264 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1268 * If the two arguments are equal then one fewer reference is granted by the
1269 * caller than we want to take
1271 if (rbio != NULL && rbio == wbio)
1275 * If only the wbio is changed only adopt one reference.
1277 if (rbio == SSL_get_rbio(s)) {
1278 SSL_set0_wbio(s, wbio);
1282 * There is an asymmetry here for historical reasons. If only the rbio is
1283 * changed AND the rbio and wbio were originally different, then we only
1284 * adopt one reference.
1286 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1287 SSL_set0_rbio(s, rbio);
1291 /* Otherwise, adopt both references. */
1292 SSL_set0_rbio(s, rbio);
1293 SSL_set0_wbio(s, wbio);
1296 BIO *SSL_get_rbio(const SSL *s)
1301 BIO *SSL_get_wbio(const SSL *s)
1303 if (s->bbio != NULL) {
1305 * If |bbio| is active, the true caller-configured BIO is its
1308 return BIO_next(s->bbio);
1313 int SSL_get_fd(const SSL *s)
1315 return SSL_get_rfd(s);
1318 int SSL_get_rfd(const SSL *s)
1323 b = SSL_get_rbio(s);
1324 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1326 BIO_get_fd(r, &ret);
1330 int SSL_get_wfd(const SSL *s)
1335 b = SSL_get_wbio(s);
1336 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1338 BIO_get_fd(r, &ret);
1342 #ifndef OPENSSL_NO_SOCK
1343 int SSL_set_fd(SSL *s, int fd)
1348 bio = BIO_new(BIO_s_socket());
1351 SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
1354 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1355 SSL_set_bio(s, bio, bio);
1356 #ifndef OPENSSL_NO_KTLS
1358 * The new socket is created successfully regardless of ktls_enable.
1359 * ktls_enable doesn't change any functionality of the socket, except
1360 * changing the setsockopt to enable the processing of ktls_start.
1361 * Thus, it is not a problem to call it for non-TLS sockets.
1364 #endif /* OPENSSL_NO_KTLS */
1370 int SSL_set_wfd(SSL *s, int fd)
1372 BIO *rbio = SSL_get_rbio(s);
1374 if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET
1375 || (int)BIO_get_fd(rbio, NULL) != fd) {
1376 BIO *bio = BIO_new(BIO_s_socket());
1379 SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
1382 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1383 SSL_set0_wbio(s, bio);
1384 #ifndef OPENSSL_NO_KTLS
1386 * The new socket is created successfully regardless of ktls_enable.
1387 * ktls_enable doesn't change any functionality of the socket, except
1388 * changing the setsockopt to enable the processing of ktls_start.
1389 * Thus, it is not a problem to call it for non-TLS sockets.
1392 #endif /* OPENSSL_NO_KTLS */
1395 SSL_set0_wbio(s, rbio);
1400 int SSL_set_rfd(SSL *s, int fd)
1402 BIO *wbio = SSL_get_wbio(s);
1404 if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET
1405 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
1406 BIO *bio = BIO_new(BIO_s_socket());
1409 SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
1412 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1413 SSL_set0_rbio(s, bio);
1416 SSL_set0_rbio(s, wbio);
1423 /* return length of latest Finished message we sent, copy to 'buf' */
1424 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
1428 ret = s->s3.tmp.finish_md_len;
1431 memcpy(buf, s->s3.tmp.finish_md, count);
1435 /* return length of latest Finished message we expected, copy to 'buf' */
1436 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
1440 ret = s->s3.tmp.peer_finish_md_len;
1443 memcpy(buf, s->s3.tmp.peer_finish_md, count);
1447 int SSL_get_verify_mode(const SSL *s)
1449 return s->verify_mode;
1452 int SSL_get_verify_depth(const SSL *s)
1454 return X509_VERIFY_PARAM_get_depth(s->param);
1457 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
1458 return s->verify_callback;
1461 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
1463 return ctx->verify_mode;
1466 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
1468 return X509_VERIFY_PARAM_get_depth(ctx->param);
1471 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
1472 return ctx->default_verify_callback;
1475 void SSL_set_verify(SSL *s, int mode,
1476 int (*callback) (int ok, X509_STORE_CTX *ctx))
1478 s->verify_mode = mode;
1479 if (callback != NULL)
1480 s->verify_callback = callback;
1483 void SSL_set_verify_depth(SSL *s, int depth)
1485 X509_VERIFY_PARAM_set_depth(s->param, depth);
1488 void SSL_set_read_ahead(SSL *s, int yes)
1490 RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
1493 int SSL_get_read_ahead(const SSL *s)
1495 return RECORD_LAYER_get_read_ahead(&s->rlayer);
1498 int SSL_pending(const SSL *s)
1500 size_t pending = s->method->ssl_pending(s);
1503 * SSL_pending cannot work properly if read-ahead is enabled
1504 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1505 * impossible to fix since SSL_pending cannot report errors that may be
1506 * observed while scanning the new data. (Note that SSL_pending() is
1507 * often used as a boolean value, so we'd better not return -1.)
1509 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1510 * we just return INT_MAX.
1512 return pending < INT_MAX ? (int)pending : INT_MAX;
1515 int SSL_has_pending(const SSL *s)
1518 * Similar to SSL_pending() but returns a 1 to indicate that we have
1519 * unprocessed data available or 0 otherwise (as opposed to the number of
1520 * bytes available). Unlike SSL_pending() this will take into account
1521 * read_ahead data. A 1 return simply indicates that we have unprocessed
1522 * data. That data may not result in any application data, or we may fail
1523 * to parse the records for some reason.
1525 if (RECORD_LAYER_processed_read_pending(&s->rlayer))
1528 return RECORD_LAYER_read_pending(&s->rlayer);
1531 X509 *SSL_get_peer_certificate(const SSL *s)
1535 if ((s == NULL) || (s->session == NULL))
1538 r = s->session->peer;
1548 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
1552 if ((s == NULL) || (s->session == NULL))
1555 r = s->session->peer_chain;
1558 * If we are a client, cert_chain includes the peer's own certificate; if
1559 * we are a server, it does not.
1566 * Now in theory, since the calling process own 't' it should be safe to
1567 * modify. We need to be able to read f without being hassled
1569 int SSL_copy_session_id(SSL *t, const SSL *f)
1572 /* Do we need to to SSL locking? */
1573 if (!SSL_set_session(t, SSL_get_session(f))) {
1578 * what if we are setup for one protocol version but want to talk another
1580 if (t->method != f->method) {
1581 t->method->ssl_free(t);
1582 t->method = f->method;
1583 if (t->method->ssl_new(t) == 0)
1587 CRYPTO_UP_REF(&f->cert->references, &i, f->cert->lock);
1588 ssl_cert_free(t->cert);
1590 if (!SSL_set_session_id_context(t, f->sid_ctx, (int)f->sid_ctx_length)) {
1597 /* Fix this so it checks all the valid key/cert options */
1598 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
1600 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
1601 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
1604 if (ctx->cert->key->privatekey == NULL) {
1605 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1608 return X509_check_private_key
1609 (ctx->cert->key->x509, ctx->cert->key->privatekey);
1612 /* Fix this function so that it takes an optional type parameter */
1613 int SSL_check_private_key(const SSL *ssl)
1616 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
1619 if (ssl->cert->key->x509 == NULL) {
1620 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
1623 if (ssl->cert->key->privatekey == NULL) {
1624 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1627 return X509_check_private_key(ssl->cert->key->x509,
1628 ssl->cert->key->privatekey);
1631 int SSL_waiting_for_async(SSL *s)
1639 int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
1641 ASYNC_WAIT_CTX *ctx = s->waitctx;
1645 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
1648 int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
1649 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
1651 ASYNC_WAIT_CTX *ctx = s->waitctx;
1655 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
1659 int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback)
1661 ctx->async_cb = callback;
1665 int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg)
1667 ctx->async_cb_arg = arg;
1671 int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback)
1673 s->async_cb = callback;
1677 int SSL_set_async_callback_arg(SSL *s, void *arg)
1679 s->async_cb_arg = arg;
1683 int SSL_get_async_status(SSL *s, int *status)
1685 ASYNC_WAIT_CTX *ctx = s->waitctx;
1689 *status = ASYNC_WAIT_CTX_get_status(ctx);
1693 int SSL_accept(SSL *s)
1695 if (s->handshake_func == NULL) {
1696 /* Not properly initialized yet */
1697 SSL_set_accept_state(s);
1700 return SSL_do_handshake(s);
1703 int SSL_connect(SSL *s)
1705 if (s->handshake_func == NULL) {
1706 /* Not properly initialized yet */
1707 SSL_set_connect_state(s);
1710 return SSL_do_handshake(s);
1713 long SSL_get_default_timeout(const SSL *s)
1715 return s->method->get_timeout();
1718 static int ssl_async_wait_ctx_cb(void *arg)
1720 SSL *s = (SSL *)arg;
1722 return s->async_cb(s, s->async_cb_arg);
1725 static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
1726 int (*func) (void *))
1729 if (s->waitctx == NULL) {
1730 s->waitctx = ASYNC_WAIT_CTX_new();
1731 if (s->waitctx == NULL)
1733 if (s->async_cb != NULL
1734 && !ASYNC_WAIT_CTX_set_callback
1735 (s->waitctx, ssl_async_wait_ctx_cb, s))
1738 switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args,
1739 sizeof(struct ssl_async_args))) {
1741 s->rwstate = SSL_NOTHING;
1742 SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC);
1745 s->rwstate = SSL_ASYNC_PAUSED;
1748 s->rwstate = SSL_ASYNC_NO_JOBS;
1754 s->rwstate = SSL_NOTHING;
1755 SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR);
1756 /* Shouldn't happen */
1761 static int ssl_io_intern(void *vargs)
1763 struct ssl_async_args *args;
1768 args = (struct ssl_async_args *)vargs;
1772 switch (args->type) {
1774 return args->f.func_read(s, buf, num, &s->asyncrw);
1776 return args->f.func_write(s, buf, num, &s->asyncrw);
1778 return args->f.func_other(s);
1783 int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
1785 if (s->handshake_func == NULL) {
1786 SSLerr(SSL_F_SSL_READ_INTERNAL, SSL_R_UNINITIALIZED);
1790 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1791 s->rwstate = SSL_NOTHING;
1795 if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
1796 || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
1797 SSLerr(SSL_F_SSL_READ_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1801 * If we are a client and haven't received the ServerHello etc then we
1804 ossl_statem_check_finish_init(s, 0);
1806 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1807 struct ssl_async_args args;
1813 args.type = READFUNC;
1814 args.f.func_read = s->method->ssl_read;
1816 ret = ssl_start_async_job(s, &args, ssl_io_intern);
1817 *readbytes = s->asyncrw;
1820 return s->method->ssl_read(s, buf, num, readbytes);
1824 int SSL_read(SSL *s, void *buf, int num)
1830 SSLerr(SSL_F_SSL_READ, SSL_R_BAD_LENGTH);
1834 ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
1837 * The cast is safe here because ret should be <= INT_MAX because num is
1841 ret = (int)readbytes;
1846 int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
1848 int ret = ssl_read_internal(s, buf, num, readbytes);
1855 int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
1860 SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1861 return SSL_READ_EARLY_DATA_ERROR;
1864 switch (s->early_data_state) {
1865 case SSL_EARLY_DATA_NONE:
1866 if (!SSL_in_before(s)) {
1867 SSLerr(SSL_F_SSL_READ_EARLY_DATA,
1868 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1869 return SSL_READ_EARLY_DATA_ERROR;
1873 case SSL_EARLY_DATA_ACCEPT_RETRY:
1874 s->early_data_state = SSL_EARLY_DATA_ACCEPTING;
1875 ret = SSL_accept(s);
1878 s->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
1879 return SSL_READ_EARLY_DATA_ERROR;
1883 case SSL_EARLY_DATA_READ_RETRY:
1884 if (s->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
1885 s->early_data_state = SSL_EARLY_DATA_READING;
1886 ret = SSL_read_ex(s, buf, num, readbytes);
1888 * State machine will update early_data_state to
1889 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1892 if (ret > 0 || (ret <= 0 && s->early_data_state
1893 != SSL_EARLY_DATA_FINISHED_READING)) {
1894 s->early_data_state = SSL_EARLY_DATA_READ_RETRY;
1895 return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
1896 : SSL_READ_EARLY_DATA_ERROR;
1899 s->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
1902 return SSL_READ_EARLY_DATA_FINISH;
1905 SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1906 return SSL_READ_EARLY_DATA_ERROR;
1910 int SSL_get_early_data_status(const SSL *s)
1912 return s->ext.early_data;
1915 static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
1917 if (s->handshake_func == NULL) {
1918 SSLerr(SSL_F_SSL_PEEK_INTERNAL, SSL_R_UNINITIALIZED);
1922 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1925 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1926 struct ssl_async_args args;
1932 args.type = READFUNC;
1933 args.f.func_read = s->method->ssl_peek;
1935 ret = ssl_start_async_job(s, &args, ssl_io_intern);
1936 *readbytes = s->asyncrw;
1939 return s->method->ssl_peek(s, buf, num, readbytes);
1943 int SSL_peek(SSL *s, void *buf, int num)
1949 SSLerr(SSL_F_SSL_PEEK, SSL_R_BAD_LENGTH);
1953 ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
1956 * The cast is safe here because ret should be <= INT_MAX because num is
1960 ret = (int)readbytes;
1966 int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
1968 int ret = ssl_peek_internal(s, buf, num, readbytes);
1975 int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written)
1977 if (s->handshake_func == NULL) {
1978 SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_UNINITIALIZED);
1982 if (s->shutdown & SSL_SENT_SHUTDOWN) {
1983 s->rwstate = SSL_NOTHING;
1984 SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_PROTOCOL_IS_SHUTDOWN);
1988 if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
1989 || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
1990 || s->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
1991 SSLerr(SSL_F_SSL_WRITE_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1994 /* If we are a client and haven't sent the Finished we better do that */
1995 ossl_statem_check_finish_init(s, 1);
1997 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1999 struct ssl_async_args args;
2002 args.buf = (void *)buf;
2004 args.type = WRITEFUNC;
2005 args.f.func_write = s->method->ssl_write;
2007 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2008 *written = s->asyncrw;
2011 return s->method->ssl_write(s, buf, num, written);
2015 ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size, int flags)
2019 if (s->handshake_func == NULL) {
2020 SSLerr(SSL_F_SSL_SENDFILE, SSL_R_UNINITIALIZED);
2024 if (s->shutdown & SSL_SENT_SHUTDOWN) {
2025 s->rwstate = SSL_NOTHING;
2026 SSLerr(SSL_F_SSL_SENDFILE, SSL_R_PROTOCOL_IS_SHUTDOWN);
2030 if (!BIO_get_ktls_send(s->wbio)) {
2031 SSLerr(SSL_F_SSL_SENDFILE, SSL_R_UNINITIALIZED);
2035 /* If we have an alert to send, lets send it */
2036 if (s->s3.alert_dispatch) {
2037 ret = (ossl_ssize_t)s->method->ssl_dispatch_alert(s);
2039 /* SSLfatal() already called if appropriate */
2042 /* if it went, fall through and send more stuff */
2045 s->rwstate = SSL_WRITING;
2046 if (BIO_flush(s->wbio) <= 0) {
2047 if (!BIO_should_retry(s->wbio)) {
2048 s->rwstate = SSL_NOTHING;
2051 set_sys_error(EAGAIN);
2057 #ifndef OPENSSL_NO_KTLS
2058 ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags);
2063 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2064 if ((get_last_sys_error() == EAGAIN) ||
2065 (get_last_sys_error() == EINTR) ||
2066 (get_last_sys_error() == EBUSY))
2067 BIO_set_retry_write(s->wbio);
2070 #ifdef OPENSSL_NO_KTLS
2071 SYSerr(SYS_F_SENDFILE, get_last_sys_error());
2073 SSLerr(SSL_F_SSL_SENDFILE, SSL_R_UNINITIALIZED);
2077 s->rwstate = SSL_NOTHING;
2081 int SSL_write(SSL *s, const void *buf, int num)
2087 SSLerr(SSL_F_SSL_WRITE, SSL_R_BAD_LENGTH);
2091 ret = ssl_write_internal(s, buf, (size_t)num, &written);
2094 * The cast is safe here because ret should be <= INT_MAX because num is
2103 int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
2105 int ret = ssl_write_internal(s, buf, num, written);
2112 int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
2114 int ret, early_data_state;
2116 uint32_t partialwrite;
2118 switch (s->early_data_state) {
2119 case SSL_EARLY_DATA_NONE:
2121 || !SSL_in_before(s)
2122 || ((s->session == NULL || s->session->ext.max_early_data == 0)
2123 && (s->psk_use_session_cb == NULL))) {
2124 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA,
2125 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2130 case SSL_EARLY_DATA_CONNECT_RETRY:
2131 s->early_data_state = SSL_EARLY_DATA_CONNECTING;
2132 ret = SSL_connect(s);
2135 s->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
2140 case SSL_EARLY_DATA_WRITE_RETRY:
2141 s->early_data_state = SSL_EARLY_DATA_WRITING;
2143 * We disable partial write for early data because we don't keep track
2144 * of how many bytes we've written between the SSL_write_ex() call and
2145 * the flush if the flush needs to be retried)
2147 partialwrite = s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
2148 s->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
2149 ret = SSL_write_ex(s, buf, num, &writtmp);
2150 s->mode |= partialwrite;
2152 s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2155 s->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
2158 case SSL_EARLY_DATA_WRITE_FLUSH:
2159 /* The buffering BIO is still in place so we need to flush it */
2160 if (statem_flush(s) != 1)
2163 s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2166 case SSL_EARLY_DATA_FINISHED_READING:
2167 case SSL_EARLY_DATA_READ_RETRY:
2168 early_data_state = s->early_data_state;
2169 /* We are a server writing to an unauthenticated client */
2170 s->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
2171 ret = SSL_write_ex(s, buf, num, written);
2172 /* The buffering BIO is still in place */
2174 (void)BIO_flush(s->wbio);
2175 s->early_data_state = early_data_state;
2179 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2184 int SSL_shutdown(SSL *s)
2187 * Note that this function behaves differently from what one might
2188 * expect. Return values are 0 for no success (yet), 1 for success; but
2189 * calling it once is usually not enough, even if blocking I/O is used
2190 * (see ssl3_shutdown).
2193 if (s->handshake_func == NULL) {
2194 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
2198 if (!SSL_in_init(s)) {
2199 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2200 struct ssl_async_args args;
2203 args.type = OTHERFUNC;
2204 args.f.func_other = s->method->ssl_shutdown;
2206 return ssl_start_async_job(s, &args, ssl_io_intern);
2208 return s->method->ssl_shutdown(s);
2211 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT);
2216 int SSL_key_update(SSL *s, int updatetype)
2219 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
2220 * negotiated, and that it is appropriate to call SSL_key_update() instead
2221 * of SSL_renegotiate().
2223 if (!SSL_IS_TLS13(s)) {
2224 SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_WRONG_SSL_VERSION);
2228 if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
2229 && updatetype != SSL_KEY_UPDATE_REQUESTED) {
2230 SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_INVALID_KEY_UPDATE_TYPE);
2234 if (!SSL_is_init_finished(s)) {
2235 SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_STILL_IN_INIT);
2239 ossl_statem_set_in_init(s, 1);
2240 s->key_update = updatetype;
2244 int SSL_get_key_update_type(const SSL *s)
2246 return s->key_update;
2249 int SSL_renegotiate(SSL *s)
2251 if (SSL_IS_TLS13(s)) {
2252 SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_WRONG_SSL_VERSION);
2256 if ((s->options & SSL_OP_NO_RENEGOTIATION)) {
2257 SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_NO_RENEGOTIATION);
2264 return s->method->ssl_renegotiate(s);
2267 int SSL_renegotiate_abbreviated(SSL *s)
2269 if (SSL_IS_TLS13(s)) {
2270 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_WRONG_SSL_VERSION);
2274 if ((s->options & SSL_OP_NO_RENEGOTIATION)) {
2275 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_NO_RENEGOTIATION);
2282 return s->method->ssl_renegotiate(s);
2285 int SSL_renegotiate_pending(const SSL *s)
2288 * becomes true when negotiation is requested; false again once a
2289 * handshake has finished
2291 return (s->renegotiate != 0);
2294 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
2299 case SSL_CTRL_GET_READ_AHEAD:
2300 return RECORD_LAYER_get_read_ahead(&s->rlayer);
2301 case SSL_CTRL_SET_READ_AHEAD:
2302 l = RECORD_LAYER_get_read_ahead(&s->rlayer);
2303 RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
2306 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
2307 s->msg_callback_arg = parg;
2311 return (s->mode |= larg);
2312 case SSL_CTRL_CLEAR_MODE:
2313 return (s->mode &= ~larg);
2314 case SSL_CTRL_GET_MAX_CERT_LIST:
2315 return (long)s->max_cert_list;
2316 case SSL_CTRL_SET_MAX_CERT_LIST:
2319 l = (long)s->max_cert_list;
2320 s->max_cert_list = (size_t)larg;
2322 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2323 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2325 #ifndef OPENSSL_NO_KTLS
2326 if (s->wbio != NULL && BIO_get_ktls_send(s->wbio))
2328 #endif /* OPENSSL_NO_KTLS */
2329 s->max_send_fragment = larg;
2330 if (s->max_send_fragment < s->split_send_fragment)
2331 s->split_send_fragment = s->max_send_fragment;
2333 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2334 if ((size_t)larg > s->max_send_fragment || larg == 0)
2336 s->split_send_fragment = larg;
2338 case SSL_CTRL_SET_MAX_PIPELINES:
2339 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2341 s->max_pipelines = larg;
2343 RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
2345 case SSL_CTRL_GET_RI_SUPPORT:
2346 return s->s3.send_connection_binding;
2347 case SSL_CTRL_CERT_FLAGS:
2348 return (s->cert->cert_flags |= larg);
2349 case SSL_CTRL_CLEAR_CERT_FLAGS:
2350 return (s->cert->cert_flags &= ~larg);
2352 case SSL_CTRL_GET_RAW_CIPHERLIST:
2354 if (s->s3.tmp.ciphers_raw == NULL)
2356 *(unsigned char **)parg = s->s3.tmp.ciphers_raw;
2357 return (int)s->s3.tmp.ciphers_rawlen;
2359 return TLS_CIPHER_LEN;
2361 case SSL_CTRL_GET_EXTMS_SUPPORT:
2362 if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s))
2364 if (s->session->flags & SSL_SESS_FLAG_EXTMS)
2368 case SSL_CTRL_SET_MIN_PROTO_VERSION:
2369 return ssl_check_allowed_versions(larg, s->max_proto_version)
2370 && ssl_set_version_bound(s->ctx->method->version, (int)larg,
2371 &s->min_proto_version);
2372 case SSL_CTRL_GET_MIN_PROTO_VERSION:
2373 return s->min_proto_version;
2374 case SSL_CTRL_SET_MAX_PROTO_VERSION:
2375 return ssl_check_allowed_versions(s->min_proto_version, larg)
2376 && ssl_set_version_bound(s->ctx->method->version, (int)larg,
2377 &s->max_proto_version);
2378 case SSL_CTRL_GET_MAX_PROTO_VERSION:
2379 return s->max_proto_version;
2381 return s->method->ssl_ctrl(s, cmd, larg, parg);
2385 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
2388 case SSL_CTRL_SET_MSG_CALLBACK:
2389 s->msg_callback = (void (*)
2390 (int write_p, int version, int content_type,
2391 const void *buf, size_t len, SSL *ssl,
2396 return s->method->ssl_callback_ctrl(s, cmd, fp);
2400 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
2402 return ctx->sessions;
2405 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
2408 /* For some cases with ctx == NULL perform syntax checks */
2411 #ifndef OPENSSL_NO_EC
2412 case SSL_CTRL_SET_GROUPS_LIST:
2413 return tls1_set_groups_list(NULL, NULL, parg);
2415 case SSL_CTRL_SET_SIGALGS_LIST:
2416 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
2417 return tls1_set_sigalgs_list(NULL, parg, 0);
2424 case SSL_CTRL_GET_READ_AHEAD:
2425 return ctx->read_ahead;
2426 case SSL_CTRL_SET_READ_AHEAD:
2427 l = ctx->read_ahead;
2428 ctx->read_ahead = larg;
2431 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
2432 ctx->msg_callback_arg = parg;
2435 case SSL_CTRL_GET_MAX_CERT_LIST:
2436 return (long)ctx->max_cert_list;
2437 case SSL_CTRL_SET_MAX_CERT_LIST:
2440 l = (long)ctx->max_cert_list;
2441 ctx->max_cert_list = (size_t)larg;
2444 case SSL_CTRL_SET_SESS_CACHE_SIZE:
2447 l = (long)ctx->session_cache_size;
2448 ctx->session_cache_size = (size_t)larg;
2450 case SSL_CTRL_GET_SESS_CACHE_SIZE:
2451 return (long)ctx->session_cache_size;
2452 case SSL_CTRL_SET_SESS_CACHE_MODE:
2453 l = ctx->session_cache_mode;
2454 ctx->session_cache_mode = larg;
2456 case SSL_CTRL_GET_SESS_CACHE_MODE:
2457 return ctx->session_cache_mode;
2459 case SSL_CTRL_SESS_NUMBER:
2460 return lh_SSL_SESSION_num_items(ctx->sessions);
2461 case SSL_CTRL_SESS_CONNECT:
2462 return tsan_load(&ctx->stats.sess_connect);
2463 case SSL_CTRL_SESS_CONNECT_GOOD:
2464 return tsan_load(&ctx->stats.sess_connect_good);
2465 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
2466 return tsan_load(&ctx->stats.sess_connect_renegotiate);
2467 case SSL_CTRL_SESS_ACCEPT:
2468 return tsan_load(&ctx->stats.sess_accept);
2469 case SSL_CTRL_SESS_ACCEPT_GOOD:
2470 return tsan_load(&ctx->stats.sess_accept_good);
2471 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
2472 return tsan_load(&ctx->stats.sess_accept_renegotiate);
2473 case SSL_CTRL_SESS_HIT:
2474 return tsan_load(&ctx->stats.sess_hit);
2475 case SSL_CTRL_SESS_CB_HIT:
2476 return tsan_load(&ctx->stats.sess_cb_hit);
2477 case SSL_CTRL_SESS_MISSES:
2478 return tsan_load(&ctx->stats.sess_miss);
2479 case SSL_CTRL_SESS_TIMEOUTS:
2480 return tsan_load(&ctx->stats.sess_timeout);
2481 case SSL_CTRL_SESS_CACHE_FULL:
2482 return tsan_load(&ctx->stats.sess_cache_full);
2484 return (ctx->mode |= larg);
2485 case SSL_CTRL_CLEAR_MODE:
2486 return (ctx->mode &= ~larg);
2487 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2488 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2490 ctx->max_send_fragment = larg;
2491 if (ctx->max_send_fragment < ctx->split_send_fragment)
2492 ctx->split_send_fragment = ctx->max_send_fragment;
2494 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2495 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
2497 ctx->split_send_fragment = larg;
2499 case SSL_CTRL_SET_MAX_PIPELINES:
2500 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2502 ctx->max_pipelines = larg;
2504 case SSL_CTRL_CERT_FLAGS:
2505 return (ctx->cert->cert_flags |= larg);
2506 case SSL_CTRL_CLEAR_CERT_FLAGS:
2507 return (ctx->cert->cert_flags &= ~larg);
2508 case SSL_CTRL_SET_MIN_PROTO_VERSION:
2509 return ssl_check_allowed_versions(larg, ctx->max_proto_version)
2510 && ssl_set_version_bound(ctx->method->version, (int)larg,
2511 &ctx->min_proto_version);
2512 case SSL_CTRL_GET_MIN_PROTO_VERSION:
2513 return ctx->min_proto_version;
2514 case SSL_CTRL_SET_MAX_PROTO_VERSION:
2515 return ssl_check_allowed_versions(ctx->min_proto_version, larg)
2516 && ssl_set_version_bound(ctx->method->version, (int)larg,
2517 &ctx->max_proto_version);
2518 case SSL_CTRL_GET_MAX_PROTO_VERSION:
2519 return ctx->max_proto_version;
2521 return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
2525 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
2528 case SSL_CTRL_SET_MSG_CALLBACK:
2529 ctx->msg_callback = (void (*)
2530 (int write_p, int version, int content_type,
2531 const void *buf, size_t len, SSL *ssl,
2536 return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
2540 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
2549 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
2550 const SSL_CIPHER *const *bp)
2552 if ((*ap)->id > (*bp)->id)
2554 if ((*ap)->id < (*bp)->id)
2559 /** return a STACK of the ciphers available for the SSL and in order of
2561 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
2564 if (s->cipher_list != NULL) {
2565 return s->cipher_list;
2566 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
2567 return s->ctx->cipher_list;
2573 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
2575 if ((s == NULL) || !s->server)
2577 return s->peer_ciphers;
2580 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
2582 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
2585 ciphers = SSL_get_ciphers(s);
2588 if (!ssl_set_client_disabled(s))
2590 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
2591 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
2592 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
2594 sk = sk_SSL_CIPHER_new_null();
2597 if (!sk_SSL_CIPHER_push(sk, c)) {
2598 sk_SSL_CIPHER_free(sk);
2606 /** return a STACK of the ciphers available for the SSL and in order of
2608 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
2611 if (s->cipher_list_by_id != NULL) {
2612 return s->cipher_list_by_id;
2613 } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
2614 return s->ctx->cipher_list_by_id;
2620 /** The old interface to get the same thing as SSL_get_ciphers() */
2621 const char *SSL_get_cipher_list(const SSL *s, int n)
2623 const SSL_CIPHER *c;
2624 STACK_OF(SSL_CIPHER) *sk;
2628 sk = SSL_get_ciphers(s);
2629 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
2631 c = sk_SSL_CIPHER_value(sk, n);
2637 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2639 STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
2642 return ctx->cipher_list;
2647 * Distinguish between ciphers controlled by set_ciphersuite() and
2648 * set_cipher_list() when counting.
2650 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
2653 const SSL_CIPHER *c;
2657 for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
2658 c = sk_SSL_CIPHER_value(sk, i);
2659 if (c->min_tls >= TLS1_3_VERSION)
2666 /** specify the ciphers to be used by default by the SSL_CTX */
2667 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
2669 STACK_OF(SSL_CIPHER) *sk;
2671 sk = ssl_create_cipher_list(ctx->method, ctx->tls13_ciphersuites,
2672 &ctx->cipher_list, &ctx->cipher_list_by_id, str,
2675 * ssl_create_cipher_list may return an empty stack if it was unable to
2676 * find a cipher matching the given rule string (for example if the rule
2677 * string specifies a cipher which has been disabled). This is not an
2678 * error as far as ssl_create_cipher_list is concerned, and hence
2679 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2683 else if (cipher_list_tls12_num(sk) == 0) {
2684 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
2690 /** specify the ciphers to be used by the SSL */
2691 int SSL_set_cipher_list(SSL *s, const char *str)
2693 STACK_OF(SSL_CIPHER) *sk;
2695 sk = ssl_create_cipher_list(s->ctx->method, s->tls13_ciphersuites,
2696 &s->cipher_list, &s->cipher_list_by_id, str,
2698 /* see comment in SSL_CTX_set_cipher_list */
2701 else if (cipher_list_tls12_num(sk) == 0) {
2702 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
2708 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
2711 STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
2712 const SSL_CIPHER *c;
2716 || s->peer_ciphers == NULL
2721 clntsk = s->peer_ciphers;
2722 srvrsk = SSL_get_ciphers(s);
2723 if (clntsk == NULL || srvrsk == NULL)
2726 if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
2729 for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
2732 c = sk_SSL_CIPHER_value(clntsk, i);
2733 if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
2736 n = strlen(c->name);
2752 /** return a servername extension value if provided in Client Hello, or NULL.
2753 * So far, only host_name types are defined (RFC 3546).
2756 const char *SSL_get_servername(const SSL *s, const int type)
2758 if (type != TLSEXT_NAMETYPE_host_name)
2762 * SNI is not negotiated in pre-TLS-1.3 resumption flows, so fake up an
2763 * SNI value to return if we are resuming/resumed. N.B. that we still
2764 * call the relevant callbacks for such resumption flows, and callbacks
2765 * might error out if there is not a SNI value available.
2768 return s->session->ext.hostname;
2769 return s->ext.hostname;
2772 int SSL_get_servername_type(const SSL *s)
2775 && (!s->ext.hostname ? s->session->
2776 ext.hostname : s->ext.hostname))
2777 return TLSEXT_NAMETYPE_host_name;
2782 * SSL_select_next_proto implements the standard protocol selection. It is
2783 * expected that this function is called from the callback set by
2784 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2785 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2786 * not included in the length. A byte string of length 0 is invalid. No byte
2787 * string may be truncated. The current, but experimental algorithm for
2788 * selecting the protocol is: 1) If the server doesn't support NPN then this
2789 * is indicated to the callback. In this case, the client application has to
2790 * abort the connection or have a default application level protocol. 2) If
2791 * the server supports NPN, but advertises an empty list then the client
2792 * selects the first protocol in its list, but indicates via the API that this
2793 * fallback case was enacted. 3) Otherwise, the client finds the first
2794 * protocol in the server's list that it supports and selects this protocol.
2795 * This is because it's assumed that the server has better information about
2796 * which protocol a client should use. 4) If the client doesn't support any
2797 * of the server's advertised protocols, then this is treated the same as
2798 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2799 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2801 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
2802 const unsigned char *server,
2803 unsigned int server_len,
2804 const unsigned char *client, unsigned int client_len)
2807 const unsigned char *result;
2808 int status = OPENSSL_NPN_UNSUPPORTED;
2811 * For each protocol in server preference order, see if we support it.
2813 for (i = 0; i < server_len;) {
2814 for (j = 0; j < client_len;) {
2815 if (server[i] == client[j] &&
2816 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
2817 /* We found a match */
2818 result = &server[i];
2819 status = OPENSSL_NPN_NEGOTIATED;
2829 /* There's no overlap between our protocols and the server's list. */
2831 status = OPENSSL_NPN_NO_OVERLAP;
2834 *out = (unsigned char *)result + 1;
2835 *outlen = result[0];
2839 #ifndef OPENSSL_NO_NEXTPROTONEG
2841 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2842 * client's requested protocol for this connection and returns 0. If the
2843 * client didn't request any protocol, then *data is set to NULL. Note that
2844 * the client can request any protocol it chooses. The value returned from
2845 * this function need not be a member of the list of supported protocols
2846 * provided by the callback.
2848 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
2855 *len = (unsigned int)s->ext.npn_len;
2860 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2861 * a TLS server needs a list of supported protocols for Next Protocol
2862 * Negotiation. The returned list must be in wire format. The list is
2863 * returned by setting |out| to point to it and |outlen| to its length. This
2864 * memory will not be modified, but one should assume that the SSL* keeps a
2865 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2866 * wishes to advertise. Otherwise, no such extension will be included in the
2869 void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
2870 SSL_CTX_npn_advertised_cb_func cb,
2873 ctx->ext.npn_advertised_cb = cb;
2874 ctx->ext.npn_advertised_cb_arg = arg;
2878 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2879 * client needs to select a protocol from the server's provided list. |out|
2880 * must be set to point to the selected protocol (which may be within |in|).
2881 * The length of the protocol name must be written into |outlen|. The
2882 * server's advertised protocols are provided in |in| and |inlen|. The
2883 * callback can assume that |in| is syntactically valid. The client must
2884 * select a protocol. It is fatal to the connection if this callback returns
2885 * a value other than SSL_TLSEXT_ERR_OK.
2887 void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
2888 SSL_CTX_npn_select_cb_func cb,
2891 ctx->ext.npn_select_cb = cb;
2892 ctx->ext.npn_select_cb_arg = arg;
2897 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2898 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2899 * length-prefixed strings). Returns 0 on success.
2901 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
2902 unsigned int protos_len)
2904 OPENSSL_free(ctx->ext.alpn);
2905 ctx->ext.alpn = OPENSSL_memdup(protos, protos_len);
2906 if (ctx->ext.alpn == NULL) {
2907 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE);
2910 ctx->ext.alpn_len = protos_len;
2916 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2917 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2918 * length-prefixed strings). Returns 0 on success.
2920 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
2921 unsigned int protos_len)
2923 OPENSSL_free(ssl->ext.alpn);
2924 ssl->ext.alpn = OPENSSL_memdup(protos, protos_len);
2925 if (ssl->ext.alpn == NULL) {
2926 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE);
2929 ssl->ext.alpn_len = protos_len;
2935 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2936 * called during ClientHello processing in order to select an ALPN protocol
2937 * from the client's list of offered protocols.
2939 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
2940 SSL_CTX_alpn_select_cb_func cb,
2943 ctx->ext.alpn_select_cb = cb;
2944 ctx->ext.alpn_select_cb_arg = arg;
2948 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
2949 * On return it sets |*data| to point to |*len| bytes of protocol name
2950 * (not including the leading length-prefix byte). If the server didn't
2951 * respond with a negotiated protocol then |*len| will be zero.
2953 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
2956 *data = ssl->s3.alpn_selected;
2960 *len = (unsigned int)ssl->s3.alpn_selected_len;
2963 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
2964 const char *label, size_t llen,
2965 const unsigned char *context, size_t contextlen,
2968 if (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER)
2971 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
2973 contextlen, use_context);
2976 int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
2977 const char *label, size_t llen,
2978 const unsigned char *context,
2981 if (s->version != TLS1_3_VERSION)
2984 return tls13_export_keying_material_early(s, out, olen, label, llen,
2985 context, contextlen);
2988 static unsigned long ssl_session_hash(const SSL_SESSION *a)
2990 const unsigned char *session_id = a->session_id;
2992 unsigned char tmp_storage[4];
2994 if (a->session_id_length < sizeof(tmp_storage)) {
2995 memset(tmp_storage, 0, sizeof(tmp_storage));
2996 memcpy(tmp_storage, a->session_id, a->session_id_length);
2997 session_id = tmp_storage;
3001 ((unsigned long)session_id[0]) |
3002 ((unsigned long)session_id[1] << 8L) |
3003 ((unsigned long)session_id[2] << 16L) |
3004 ((unsigned long)session_id[3] << 24L);
3009 * NB: If this function (or indeed the hash function which uses a sort of
3010 * coarser function than this one) is changed, ensure
3011 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3012 * being able to construct an SSL_SESSION that will collide with any existing
3013 * session with a matching session ID.
3015 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
3017 if (a->ssl_version != b->ssl_version)
3019 if (a->session_id_length != b->session_id_length)
3021 return memcmp(a->session_id, b->session_id, a->session_id_length);
3025 * These wrapper functions should remain rather than redeclaring
3026 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3027 * variable. The reason is that the functions aren't static, they're exposed
3031 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
3033 SSL_CTX *ret = NULL;
3036 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
3040 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
3043 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3044 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
3047 ret = OPENSSL_zalloc(sizeof(*ret));
3052 ret->min_proto_version = 0;
3053 ret->max_proto_version = 0;
3054 ret->mode = SSL_MODE_AUTO_RETRY;
3055 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
3056 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
3057 /* We take the system default. */
3058 ret->session_timeout = meth->get_timeout();
3059 ret->references = 1;
3060 ret->lock = CRYPTO_THREAD_lock_new();
3061 if (ret->lock == NULL) {
3062 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
3066 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
3067 ret->verify_mode = SSL_VERIFY_NONE;
3068 if ((ret->cert = ssl_cert_new()) == NULL)
3071 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
3072 if (ret->sessions == NULL)
3074 ret->cert_store = X509_STORE_new();
3075 if (ret->cert_store == NULL)
3077 #ifndef OPENSSL_NO_CT
3078 ret->ctlog_store = CTLOG_STORE_new();
3079 if (ret->ctlog_store == NULL)
3083 if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites()))
3086 if (!ssl_create_cipher_list(ret->method,
3087 ret->tls13_ciphersuites,
3088 &ret->cipher_list, &ret->cipher_list_by_id,
3089 OSSL_default_cipher_list(), ret->cert)
3090 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
3091 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
3095 ret->param = X509_VERIFY_PARAM_new();
3096 if (ret->param == NULL)
3099 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
3100 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
3103 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
3104 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
3108 if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL)
3111 if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL)
3114 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data))
3117 if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
3120 /* No compression for DTLS */
3121 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
3122 ret->comp_methods = SSL_COMP_get_compression_methods();
3124 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3125 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3127 /* Setup RFC5077 ticket keys */
3128 if ((RAND_bytes(ret->ext.tick_key_name,
3129 sizeof(ret->ext.tick_key_name)) <= 0)
3130 || (RAND_priv_bytes(ret->ext.secure->tick_hmac_key,
3131 sizeof(ret->ext.secure->tick_hmac_key)) <= 0)
3132 || (RAND_priv_bytes(ret->ext.secure->tick_aes_key,
3133 sizeof(ret->ext.secure->tick_aes_key)) <= 0))
3134 ret->options |= SSL_OP_NO_TICKET;
3136 if (RAND_priv_bytes(ret->ext.cookie_hmac_key,
3137 sizeof(ret->ext.cookie_hmac_key)) <= 0)
3140 #ifndef OPENSSL_NO_SRP
3141 if (!SSL_CTX_SRP_CTX_init(ret))
3144 #ifndef OPENSSL_NO_ENGINE
3145 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3146 # define eng_strx(x) #x
3147 # define eng_str(x) eng_strx(x)
3148 /* Use specific client engine automatically... ignore errors */
3151 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3154 ENGINE_load_builtin_engines();
3155 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3157 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
3163 * Default is to connect to non-RI servers. When RI is more widely
3164 * deployed might change this.
3166 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
3168 * Disable compression by default to prevent CRIME. Applications can
3169 * re-enable compression by configuring
3170 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3171 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3172 * middlebox compatibility by default. This may be disabled by default in
3173 * a later OpenSSL version.
3175 ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
3177 ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
3180 * We cannot usefully set a default max_early_data here (which gets
3181 * propagated in SSL_new(), for the following reason: setting the
3182 * SSL field causes tls_construct_stoc_early_data() to tell the
3183 * client that early data will be accepted when constructing a TLS 1.3
3184 * session ticket, and the client will accordingly send us early data
3185 * when using that ticket (if the client has early data to send).
3186 * However, in order for the early data to actually be consumed by
3187 * the application, the application must also have calls to
3188 * SSL_read_early_data(); otherwise we'll just skip past the early data
3189 * and ignore it. So, since the application must add calls to
3190 * SSL_read_early_data(), we also require them to add
3191 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3192 * eliminating the bandwidth-wasting early data in the case described
3195 ret->max_early_data = 0;
3198 * Default recv_max_early_data is a fully loaded single record. Could be
3199 * split across multiple records in practice. We set this differently to
3200 * max_early_data so that, in the default case, we do not advertise any
3201 * support for early_data, but if a client were to send us some (e.g.
3202 * because of an old, stale ticket) then we will tolerate it and skip over
3205 ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
3207 /* By default we send two session tickets automatically in TLSv1.3 */
3208 ret->num_tickets = 2;
3210 ssl_ctx_system_config(ret);
3214 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
3220 int SSL_CTX_up_ref(SSL_CTX *ctx)
3224 if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0)
3227 REF_PRINT_COUNT("SSL_CTX", ctx);
3228 REF_ASSERT_ISNT(i < 2);
3229 return ((i > 1) ? 1 : 0);
3232 void SSL_CTX_free(SSL_CTX *a)
3239 CRYPTO_DOWN_REF(&a->references, &i, a->lock);
3240 REF_PRINT_COUNT("SSL_CTX", a);
3243 REF_ASSERT_ISNT(i < 0);
3245 X509_VERIFY_PARAM_free(a->param);
3246 dane_ctx_final(&a->dane);
3249 * Free internal session cache. However: the remove_cb() may reference
3250 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3251 * after the sessions were flushed.
3252 * As the ex_data handling routines might also touch the session cache,
3253 * the most secure solution seems to be: empty (flush) the cache, then
3254 * free ex_data, then finally free the cache.
3255 * (See ticket [openssl.org #212].)
3257 if (a->sessions != NULL)
3258 SSL_CTX_flush_sessions(a, 0);
3260 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
3261 lh_SSL_SESSION_free(a->sessions);
3262 X509_STORE_free(a->cert_store);
3263 #ifndef OPENSSL_NO_CT
3264 CTLOG_STORE_free(a->ctlog_store);
3266 sk_SSL_CIPHER_free(a->cipher_list);
3267 sk_SSL_CIPHER_free(a->cipher_list_by_id);
3268 sk_SSL_CIPHER_free(a->tls13_ciphersuites);
3269 ssl_cert_free(a->cert);
3270 sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
3271 sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
3272 sk_X509_pop_free(a->extra_certs, X509_free);
3273 a->comp_methods = NULL;
3274 #ifndef OPENSSL_NO_SRTP
3275 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
3277 #ifndef OPENSSL_NO_SRP
3278 SSL_CTX_SRP_CTX_free(a);
3280 #ifndef OPENSSL_NO_ENGINE
3281 ENGINE_finish(a->client_cert_engine);
3284 #ifndef OPENSSL_NO_EC
3285 OPENSSL_free(a->ext.ecpointformats);
3286 OPENSSL_free(a->ext.supportedgroups);
3288 OPENSSL_free(a->ext.alpn);
3289 OPENSSL_secure_free(a->ext.secure);
3291 CRYPTO_THREAD_lock_free(a->lock);
3296 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
3298 ctx->default_passwd_callback = cb;
3301 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
3303 ctx->default_passwd_callback_userdata = u;
3306 pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
3308 return ctx->default_passwd_callback;
3311 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
3313 return ctx->default_passwd_callback_userdata;
3316 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
3318 s->default_passwd_callback = cb;
3321 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
3323 s->default_passwd_callback_userdata = u;
3326 pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
3328 return s->default_passwd_callback;
3331 void *SSL_get_default_passwd_cb_userdata(SSL *s)
3333 return s->default_passwd_callback_userdata;
3336 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
3337 int (*cb) (X509_STORE_CTX *, void *),
3340 ctx->app_verify_callback = cb;
3341 ctx->app_verify_arg = arg;
3344 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
3345 int (*cb) (int, X509_STORE_CTX *))
3347 ctx->verify_mode = mode;
3348 ctx->default_verify_callback = cb;
3351 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
3353 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
3356 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
3358 ssl_cert_set_cert_cb(c->cert, cb, arg);
3361 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
3363 ssl_cert_set_cert_cb(s->cert, cb, arg);
3366 void ssl_set_masks(SSL *s)
3369 uint32_t *pvalid = s->s3.tmp.valid_flags;
3370 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
3371 unsigned long mask_k, mask_a;
3372 #ifndef OPENSSL_NO_EC
3373 int have_ecc_cert, ecdsa_ok;
3378 #ifndef OPENSSL_NO_DH
3379 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
3384 rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
3385 rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
3386 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
3387 #ifndef OPENSSL_NO_EC
3388 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
3393 OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
3394 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
3396 #ifndef OPENSSL_NO_GOST
3397 if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
3398 mask_k |= SSL_kGOST;
3399 mask_a |= SSL_aGOST12;
3401 if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
3402 mask_k |= SSL_kGOST;
3403 mask_a |= SSL_aGOST12;
3405 if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
3406 mask_k |= SSL_kGOST;
3407 mask_a |= SSL_aGOST01;
3418 * If we only have an RSA-PSS certificate allow RSA authentication
3419 * if TLS 1.2 and peer supports it.
3422 if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
3423 && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
3424 && TLS1_get_version(s) == TLS1_2_VERSION))
3431 mask_a |= SSL_aNULL;
3434 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
3435 * depending on the key usage extension.
3437 #ifndef OPENSSL_NO_EC
3438 if (have_ecc_cert) {
3440 ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
3441 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
3442 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
3445 mask_a |= SSL_aECDSA;
3447 /* Allow Ed25519 for TLS 1.2 if peer supports it */
3448 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
3449 && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
3450 && TLS1_get_version(s) == TLS1_2_VERSION)
3451 mask_a |= SSL_aECDSA;
3453 /* Allow Ed448 for TLS 1.2 if peer supports it */
3454 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
3455 && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
3456 && TLS1_get_version(s) == TLS1_2_VERSION)
3457 mask_a |= SSL_aECDSA;
3460 #ifndef OPENSSL_NO_EC
3461 mask_k |= SSL_kECDHE;
3464 #ifndef OPENSSL_NO_PSK
3467 if (mask_k & SSL_kRSA)
3468 mask_k |= SSL_kRSAPSK;
3469 if (mask_k & SSL_kDHE)
3470 mask_k |= SSL_kDHEPSK;
3471 if (mask_k & SSL_kECDHE)
3472 mask_k |= SSL_kECDHEPSK;
3475 s->s3.tmp.mask_k = mask_k;
3476 s->s3.tmp.mask_a = mask_a;
3479 #ifndef OPENSSL_NO_EC
3481 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
3483 if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
3484 /* key usage, if present, must allow signing */
3485 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
3486 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
3487 SSL_R_ECC_CERT_NOT_FOR_SIGNING);
3491 return 1; /* all checks are ok */
3496 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
3497 size_t *serverinfo_length)
3499 CERT_PKEY *cpk = s->s3.tmp.cert;
3500 *serverinfo_length = 0;
3502 if (cpk == NULL || cpk->serverinfo == NULL)
3505 *serverinfo = cpk->serverinfo;
3506 *serverinfo_length = cpk->serverinfo_length;
3510 void ssl_update_cache(SSL *s, int mode)
3515 * If the session_id_length is 0, we are not supposed to cache it, and it
3516 * would be rather hard to do anyway :-)
3518 if (s->session->session_id_length == 0)
3522 * If sid_ctx_length is 0 there is no specific application context
3523 * associated with this session, so when we try to resume it and
3524 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
3525 * indication that this is actually a session for the proper application
3526 * context, and the *handshake* will fail, not just the resumption attempt.
3527 * Do not cache (on the server) these sessions that are not resumable
3528 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
3530 if (s->server && s->session->sid_ctx_length == 0
3531 && (s->verify_mode & SSL_VERIFY_PEER) != 0)
3534 i = s->session_ctx->session_cache_mode;
3536 && (!s->hit || SSL_IS_TLS13(s))) {
3538 * Add the session to the internal cache. In server side TLSv1.3 we
3539 * normally don't do this because by default it's a full stateless ticket
3540 * with only a dummy session id so there is no reason to cache it,
3542 * - we are doing early_data, in which case we cache so that we can
3544 * - the application has set a remove_session_cb so needs to know about
3545 * session timeout events
3546 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
3548 if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
3549 && (!SSL_IS_TLS13(s)
3551 || (s->max_early_data > 0
3552 && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
3553 || s->session_ctx->remove_session_cb != NULL
3554 || (s->options & SSL_OP_NO_TICKET) != 0))
3555 SSL_CTX_add_session(s->session_ctx, s->session);
3558 * Add the session to the external cache. We do this even in server side
3559 * TLSv1.3 without early data because some applications just want to
3560 * know about the creation of a session and aren't doing a full cache.
3562 if (s->session_ctx->new_session_cb != NULL) {
3563 SSL_SESSION_up_ref(s->session);
3564 if (!s->session_ctx->new_session_cb(s, s->session))
3565 SSL_SESSION_free(s->session);
3569 /* auto flush every 255 connections */
3570 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
3571 TSAN_QUALIFIER int *stat;
3572 if (mode & SSL_SESS_CACHE_CLIENT)
3573 stat = &s->session_ctx->stats.sess_connect_good;
3575 stat = &s->session_ctx->stats.sess_accept_good;
3576 if ((tsan_load(stat) & 0xff) == 0xff)
3577 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
3581 const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
3586 const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
3591 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
3595 if (s->method != meth) {
3596 const SSL_METHOD *sm = s->method;
3597 int (*hf) (SSL *) = s->handshake_func;
3599 if (sm->version == meth->version)
3604 ret = s->method->ssl_new(s);
3607 if (hf == sm->ssl_connect)
3608 s->handshake_func = meth->ssl_connect;
3609 else if (hf == sm->ssl_accept)
3610 s->handshake_func = meth->ssl_accept;
3615 int SSL_get_error(const SSL *s, int i)
3622 return SSL_ERROR_NONE;
3625 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3626 * where we do encode the error
3628 if ((l = ERR_peek_error()) != 0) {
3629 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
3630 return SSL_ERROR_SYSCALL;
3632 return SSL_ERROR_SSL;
3635 if (SSL_want_read(s)) {
3636 bio = SSL_get_rbio(s);
3637 if (BIO_should_read(bio))
3638 return SSL_ERROR_WANT_READ;
3639 else if (BIO_should_write(bio))
3641 * This one doesn't make too much sense ... We never try to write
3642 * to the rbio, and an application program where rbio and wbio
3643 * are separate couldn't even know what it should wait for.
3644 * However if we ever set s->rwstate incorrectly (so that we have
3645 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3646 * wbio *are* the same, this test works around that bug; so it
3647 * might be safer to keep it.
3649 return SSL_ERROR_WANT_WRITE;
3650 else if (BIO_should_io_special(bio)) {
3651 reason = BIO_get_retry_reason(bio);
3652 if (reason == BIO_RR_CONNECT)
3653 return SSL_ERROR_WANT_CONNECT;
3654 else if (reason == BIO_RR_ACCEPT)
3655 return SSL_ERROR_WANT_ACCEPT;
3657 return SSL_ERROR_SYSCALL; /* unknown */
3661 if (SSL_want_write(s)) {
3662 /* Access wbio directly - in order to use the buffered bio if present */
3664 if (BIO_should_write(bio))
3665 return SSL_ERROR_WANT_WRITE;
3666 else if (BIO_should_read(bio))
3668 * See above (SSL_want_read(s) with BIO_should_write(bio))
3670 return SSL_ERROR_WANT_READ;
3671 else if (BIO_should_io_special(bio)) {
3672 reason = BIO_get_retry_reason(bio);
3673 if (reason == BIO_RR_CONNECT)
3674 return SSL_ERROR_WANT_CONNECT;
3675 else if (reason == BIO_RR_ACCEPT)
3676 return SSL_ERROR_WANT_ACCEPT;
3678 return SSL_ERROR_SYSCALL;
3681 if (SSL_want_x509_lookup(s))
3682 return SSL_ERROR_WANT_X509_LOOKUP;
3683 if (SSL_want_async(s))
3684 return SSL_ERROR_WANT_ASYNC;
3685 if (SSL_want_async_job(s))
3686 return SSL_ERROR_WANT_ASYNC_JOB;
3687 if (SSL_want_client_hello_cb(s))
3688 return SSL_ERROR_WANT_CLIENT_HELLO_CB;
3690 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
3691 (s->s3.warn_alert == SSL_AD_CLOSE_NOTIFY))
3692 return SSL_ERROR_ZERO_RETURN;
3694 return SSL_ERROR_SYSCALL;
3697 static int ssl_do_handshake_intern(void *vargs)
3699 struct ssl_async_args *args;
3702 args = (struct ssl_async_args *)vargs;
3705 return s->handshake_func(s);
3708 int SSL_do_handshake(SSL *s)
3712 if (s->handshake_func == NULL) {
3713 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
3717 ossl_statem_check_finish_init(s, -1);
3719 s->method->ssl_renegotiate_check(s, 0);
3721 if (SSL_in_init(s) || SSL_in_before(s)) {
3722 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
3723 struct ssl_async_args args;
3727 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
3729 ret = s->handshake_func(s);
3735 void SSL_set_accept_state(SSL *s)
3739 ossl_statem_clear(s);
3740 s->handshake_func = s->method->ssl_accept;
3744 void SSL_set_connect_state(SSL *s)
3748 ossl_statem_clear(s);
3749 s->handshake_func = s->method->ssl_connect;
3753 int ssl_undefined_function(SSL *s)
3755 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
3759 int ssl_undefined_void_function(void)
3761 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
3762 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
3766 int ssl_undefined_const_function(const SSL *s)
3771 const SSL_METHOD *ssl_bad_method(int ver)
3773 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
3777 const char *ssl_protocol_to_string(int version)
3781 case TLS1_3_VERSION:
3784 case TLS1_2_VERSION:
3787 case TLS1_1_VERSION:
3802 case DTLS1_2_VERSION:
3810 const char *SSL_get_version(const SSL *s)
3812 return ssl_protocol_to_string(s->version);
3815 static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
3817 STACK_OF(X509_NAME) *sk;
3826 if ((sk = sk_X509_NAME_new_null()) == NULL)
3828 for (i = 0; i < sk_X509_NAME_num(src); i++) {
3829 xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
3831 sk_X509_NAME_pop_free(sk, X509_NAME_free);
3834 if (sk_X509_NAME_insert(sk, xn, i) == 0) {
3836 sk_X509_NAME_pop_free(sk, X509_NAME_free);
3845 SSL *SSL_dup(SSL *s)
3850 /* If we're not quiescent, just up_ref! */
3851 if (!SSL_in_init(s) || !SSL_in_before(s)) {
3852 CRYPTO_UP_REF(&s->references, &i, s->lock);
3857 * Otherwise, copy configuration state, and session if set.
3859 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
3862 if (s->session != NULL) {
3864 * Arranges to share the same session via up_ref. This "copies"
3865 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3867 if (!SSL_copy_session_id(ret, s))
3871 * No session has been established yet, so we have to expect that
3872 * s->cert or ret->cert will be changed later -- they should not both
3873 * point to the same object, and thus we can't use
3874 * SSL_copy_session_id.
3876 if (!SSL_set_ssl_method(ret, s->method))
3879 if (s->cert != NULL) {
3880 ssl_cert_free(ret->cert);
3881 ret->cert = ssl_cert_dup(s->cert);
3882 if (ret->cert == NULL)
3886 if (!SSL_set_session_id_context(ret, s->sid_ctx,
3887 (int)s->sid_ctx_length))
3891 if (!ssl_dane_dup(ret, s))
3893 ret->version = s->version;
3894 ret->options = s->options;
3895 ret->mode = s->mode;
3896 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
3897 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
3898 ret->msg_callback = s->msg_callback;
3899 ret->msg_callback_arg = s->msg_callback_arg;
3900 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
3901 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
3902 ret->generate_session_id = s->generate_session_id;
3904 SSL_set_info_callback(ret, SSL_get_info_callback(s));
3906 /* copy app data, a little dangerous perhaps */
3907 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
3910 /* setup rbio, and wbio */
3911 if (s->rbio != NULL) {
3912 if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
3915 if (s->wbio != NULL) {
3916 if (s->wbio != s->rbio) {
3917 if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
3920 BIO_up_ref(ret->rbio);
3921 ret->wbio = ret->rbio;
3925 ret->server = s->server;
3926 if (s->handshake_func) {
3928 SSL_set_accept_state(ret);
3930 SSL_set_connect_state(ret);
3932 ret->shutdown = s->shutdown;
3935 ret->default_passwd_callback = s->default_passwd_callback;
3936 ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata;
3938 X509_VERIFY_PARAM_inherit(ret->param, s->param);
3940 /* dup the cipher_list and cipher_list_by_id stacks */
3941 if (s->cipher_list != NULL) {
3942 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
3945 if (s->cipher_list_by_id != NULL)
3946 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
3950 /* Dup the client_CA list */
3951 if (!dup_ca_names(&ret->ca_names, s->ca_names)
3952 || !dup_ca_names(&ret->client_ca_names, s->client_ca_names))
3962 void ssl_clear_cipher_ctx(SSL *s)
3964 if (s->enc_read_ctx != NULL) {
3965 EVP_CIPHER_CTX_free(s->enc_read_ctx);
3966 s->enc_read_ctx = NULL;
3968 if (s->enc_write_ctx != NULL) {
3969 EVP_CIPHER_CTX_free(s->enc_write_ctx);
3970 s->enc_write_ctx = NULL;
3972 #ifndef OPENSSL_NO_COMP
3973 COMP_CTX_free(s->expand);
3975 COMP_CTX_free(s->compress);
3980 X509 *SSL_get_certificate(const SSL *s)
3982 if (s->cert != NULL)
3983 return s->cert->key->x509;
3988 EVP_PKEY *SSL_get_privatekey(const SSL *s)
3990 if (s->cert != NULL)
3991 return s->cert->key->privatekey;
3996 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
3998 if (ctx->cert != NULL)
3999 return ctx->cert->key->x509;
4004 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
4006 if (ctx->cert != NULL)
4007 return ctx->cert->key->privatekey;
4012 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
4014 if ((s->session != NULL) && (s->session->cipher != NULL))
4015 return s->session->cipher;
4019 const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
4021 return s->s3.tmp.new_cipher;
4024 const COMP_METHOD *SSL_get_current_compression(const SSL *s)
4026 #ifndef OPENSSL_NO_COMP
4027 return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
4033 const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
4035 #ifndef OPENSSL_NO_COMP
4036 return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
4042 int ssl_init_wbio_buffer(SSL *s)
4046 if (s->bbio != NULL) {
4047 /* Already buffered. */
4051 bbio = BIO_new(BIO_f_buffer());
4052 if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) {
4054 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
4058 s->wbio = BIO_push(bbio, s->wbio);
4063 int ssl_free_wbio_buffer(SSL *s)
4065 /* callers ensure s is never null */
4066 if (s->bbio == NULL)
4069 s->wbio = BIO_pop(s->wbio);
4076 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
4078 ctx->quiet_shutdown = mode;
4081 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
4083 return ctx->quiet_shutdown;
4086 void SSL_set_quiet_shutdown(SSL *s, int mode)
4088 s->quiet_shutdown = mode;
4091 int SSL_get_quiet_shutdown(const SSL *s)
4093 return s->quiet_shutdown;
4096 void SSL_set_shutdown(SSL *s, int mode)
4101 int SSL_get_shutdown(const SSL *s)
4106 int SSL_version(const SSL *s)
4111 int SSL_client_version(const SSL *s)
4113 return s->client_version;
4116 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
4121 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
4124 if (ssl->ctx == ctx)
4127 ctx = ssl->session_ctx;
4128 new_cert = ssl_cert_dup(ctx->cert);
4129 if (new_cert == NULL) {
4133 if (!custom_exts_copy_flags(&new_cert->custext, &ssl->cert->custext)) {
4134 ssl_cert_free(new_cert);
4138 ssl_cert_free(ssl->cert);
4139 ssl->cert = new_cert;
4142 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
4143 * so setter APIs must prevent invalid lengths from entering the system.
4145 if (!ossl_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx)))
4149 * If the session ID context matches that of the parent SSL_CTX,
4150 * inherit it from the new SSL_CTX as well. If however the context does
4151 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
4152 * leave it unchanged.
4154 if ((ssl->ctx != NULL) &&
4155 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
4156 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
4157 ssl->sid_ctx_length = ctx->sid_ctx_length;
4158 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
4161 SSL_CTX_up_ref(ctx);
4162 SSL_CTX_free(ssl->ctx); /* decrement reference count */
4168 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
4170 return X509_STORE_set_default_paths(ctx->cert_store);
4173 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
4175 X509_LOOKUP *lookup;
4177 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
4180 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
4182 /* Clear any errors if the default directory does not exist */
4188 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
4190 X509_LOOKUP *lookup;
4192 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
4196 X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
4198 /* Clear any errors if the default file does not exist */
4204 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
4207 return X509_STORE_load_locations(ctx->cert_store, CAfile, CApath);
4210 void SSL_set_info_callback(SSL *ssl,
4211 void (*cb) (const SSL *ssl, int type, int val))
4213 ssl->info_callback = cb;
4217 * One compiler (Diab DCC) doesn't like argument names in returned function
4220 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
4223 return ssl->info_callback;
4226 void SSL_set_verify_result(SSL *ssl, long arg)
4228 ssl->verify_result = arg;
4231 long SSL_get_verify_result(const SSL *ssl)
4233 return ssl->verify_result;
4236 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
4239 return sizeof(ssl->s3.client_random);
4240 if (outlen > sizeof(ssl->s3.client_random))
4241 outlen = sizeof(ssl->s3.client_random);
4242 memcpy(out, ssl->s3.client_random, outlen);
4246 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
4249 return sizeof(ssl->s3.server_random);
4250 if (outlen > sizeof(ssl->s3.server_random))
4251 outlen = sizeof(ssl->s3.server_random);
4252 memcpy(out, ssl->s3.server_random, outlen);
4256 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
4257 unsigned char *out, size_t outlen)
4260 return session->master_key_length;
4261 if (outlen > session->master_key_length)
4262 outlen = session->master_key_length;
4263 memcpy(out, session->master_key, outlen);
4267 int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
4270 if (len > sizeof(sess->master_key))
4273 memcpy(sess->master_key, in, len);
4274 sess->master_key_length = len;
4279 int SSL_set_ex_data(SSL *s, int idx, void *arg)
4281 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
4284 void *SSL_get_ex_data(const SSL *s, int idx)
4286 return CRYPTO_get_ex_data(&s->ex_data, idx);
4289 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
4291 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
4294 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
4296 return CRYPTO_get_ex_data(&s->ex_data, idx);
4299 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
4301 return ctx->cert_store;
4304 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
4306 X509_STORE_free(ctx->cert_store);
4307 ctx->cert_store = store;
4310 void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
4313 X509_STORE_up_ref(store);
4314 SSL_CTX_set_cert_store(ctx, store);
4317 int SSL_want(const SSL *s)
4323 * \brief Set the callback for generating temporary DH keys.
4324 * \param ctx the SSL context.
4325 * \param dh the callback
4328 #ifndef OPENSSL_NO_DH
4329 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
4330 DH *(*dh) (SSL *ssl, int is_export,
4333 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
4336 void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
4339 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
4343 #ifndef OPENSSL_NO_PSK
4344 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
4346 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
4347 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
4350 OPENSSL_free(ctx->cert->psk_identity_hint);
4351 if (identity_hint != NULL) {
4352 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
4353 if (ctx->cert->psk_identity_hint == NULL)
4356 ctx->cert->psk_identity_hint = NULL;
4360 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
4365 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
4366 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
4369 OPENSSL_free(s->cert->psk_identity_hint);
4370 if (identity_hint != NULL) {
4371 s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
4372 if (s->cert->psk_identity_hint == NULL)
4375 s->cert->psk_identity_hint = NULL;
4379 const char *SSL_get_psk_identity_hint(const SSL *s)
4381 if (s == NULL || s->session == NULL)
4383 return s->session->psk_identity_hint;
4386 const char *SSL_get_psk_identity(const SSL *s)
4388 if (s == NULL || s->session == NULL)
4390 return s->session->psk_identity;
4393 void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
4395 s->psk_client_callback = cb;
4398 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
4400 ctx->psk_client_callback = cb;
4403 void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
4405 s->psk_server_callback = cb;
4408 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
4410 ctx->psk_server_callback = cb;
4414 void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
4416 s->psk_find_session_cb = cb;
4419 void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
4420 SSL_psk_find_session_cb_func cb)
4422 ctx->psk_find_session_cb = cb;
4425 void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
4427 s->psk_use_session_cb = cb;
4430 void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
4431 SSL_psk_use_session_cb_func cb)
4433 ctx->psk_use_session_cb = cb;
4436 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
4437 void (*cb) (int write_p, int version,
4438 int content_type, const void *buf,
4439 size_t len, SSL *ssl, void *arg))
4441 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
4444 void SSL_set_msg_callback(SSL *ssl,
4445 void (*cb) (int write_p, int version,
4446 int content_type, const void *buf,
4447 size_t len, SSL *ssl, void *arg))
4449 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
4452 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
4453 int (*cb) (SSL *ssl,
4457 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
4458 (void (*)(void))cb);
4461 void SSL_set_not_resumable_session_callback(SSL *ssl,
4462 int (*cb) (SSL *ssl,
4463 int is_forward_secure))
4465 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
4466 (void (*)(void))cb);
4469 void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
4470 size_t (*cb) (SSL *ssl, int type,
4471 size_t len, void *arg))
4473 ctx->record_padding_cb = cb;
4476 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
4478 ctx->record_padding_arg = arg;
4481 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
4483 return ctx->record_padding_arg;
4486 int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
4488 /* block size of 0 or 1 is basically no padding */
4489 if (block_size == 1)
4490 ctx->block_padding = 0;
4491 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
4492 ctx->block_padding = block_size;
4498 void SSL_set_record_padding_callback(SSL *ssl,
4499 size_t (*cb) (SSL *ssl, int type,
4500 size_t len, void *arg))
4502 ssl->record_padding_cb = cb;
4505 void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
4507 ssl->record_padding_arg = arg;
4510 void *SSL_get_record_padding_callback_arg(const SSL *ssl)
4512 return ssl->record_padding_arg;
4515 int SSL_set_block_padding(SSL *ssl, size_t block_size)
4517 /* block size of 0 or 1 is basically no padding */
4518 if (block_size == 1)
4519 ssl->block_padding = 0;
4520 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
4521 ssl->block_padding = block_size;
4527 int SSL_set_num_tickets(SSL *s, size_t num_tickets)
4529 s->num_tickets = num_tickets;
4534 size_t SSL_get_num_tickets(const SSL *s)
4536 return s->num_tickets;
4539 int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
4541 ctx->num_tickets = num_tickets;
4546 size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
4548 return ctx->num_tickets;
4552 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
4553 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
4554 * If EVP_MD pointer is passed, initializes ctx with this |md|.
4555 * Returns the newly allocated ctx;
4558 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
4560 ssl_clear_hash_ctx(hash);
4561 *hash = EVP_MD_CTX_new();
4562 if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) {
4563 EVP_MD_CTX_free(*hash);
4570 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
4573 EVP_MD_CTX_free(*hash);
4577 /* Retrieve handshake hashes */
4578 int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen,
4581 EVP_MD_CTX *ctx = NULL;
4582 EVP_MD_CTX *hdgst = s->s3.handshake_dgst;
4583 int hashleni = EVP_MD_CTX_size(hdgst);
4586 if (hashleni < 0 || (size_t)hashleni > outlen) {
4587 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH,
4588 ERR_R_INTERNAL_ERROR);
4592 ctx = EVP_MD_CTX_new();
4596 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
4597 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
4598 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH,
4599 ERR_R_INTERNAL_ERROR);
4603 *hashlen = hashleni;
4607 EVP_MD_CTX_free(ctx);
4611 int SSL_session_reused(const SSL *s)
4616 int SSL_is_server(const SSL *s)
4621 #if !OPENSSL_API_1_1_0
4622 void SSL_set_debug(SSL *s, int debug)
4624 /* Old function was do-nothing anyway... */
4630 void SSL_set_security_level(SSL *s, int level)
4632 s->cert->sec_level = level;
4635 int SSL_get_security_level(const SSL *s)
4637 return s->cert->sec_level;
4640 void SSL_set_security_callback(SSL *s,
4641 int (*cb) (const SSL *s, const SSL_CTX *ctx,
4642 int op, int bits, int nid,
4643 void *other, void *ex))
4645 s->cert->sec_cb = cb;
4648 int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
4649 const SSL_CTX *ctx, int op,
4650 int bits, int nid, void *other,
4652 return s->cert->sec_cb;
4655 void SSL_set0_security_ex_data(SSL *s, void *ex)
4657 s->cert->sec_ex = ex;
4660 void *SSL_get0_security_ex_data(const SSL *s)
4662 return s->cert->sec_ex;
4665 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
4667 ctx->cert->sec_level = level;
4670 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
4672 return ctx->cert->sec_level;
4675 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
4676 int (*cb) (const SSL *s, const SSL_CTX *ctx,
4677 int op, int bits, int nid,
4678 void *other, void *ex))
4680 ctx->cert->sec_cb = cb;
4683 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
4689 return ctx->cert->sec_cb;
4692 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
4694 ctx->cert->sec_ex = ex;
4697 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
4699 return ctx->cert->sec_ex;
4703 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4704 * can return unsigned long, instead of the generic long return value from the
4705 * control interface.
4707 unsigned long SSL_CTX_get_options(const SSL_CTX *ctx)
4709 return ctx->options;
4712 unsigned long SSL_get_options(const SSL *s)
4717 unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op)
4719 return ctx->options |= op;
4722 unsigned long SSL_set_options(SSL *s, unsigned long op)
4724 return s->options |= op;
4727 unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op)
4729 return ctx->options &= ~op;
4732 unsigned long SSL_clear_options(SSL *s, unsigned long op)
4734 return s->options &= ~op;
4737 STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
4739 return s->verified_chain;
4742 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
4744 #ifndef OPENSSL_NO_CT
4747 * Moves SCTs from the |src| stack to the |dst| stack.
4748 * The source of each SCT will be set to |origin|.
4749 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4751 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4753 static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
4754 sct_source_t origin)
4760 *dst = sk_SCT_new_null();
4762 SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE);
4767 while ((sct = sk_SCT_pop(src)) != NULL) {
4768 if (SCT_set_source(sct, origin) != 1)
4771 if (sk_SCT_push(*dst, sct) <= 0)
4779 sk_SCT_push(src, sct); /* Put the SCT back */
4784 * Look for data collected during ServerHello and parse if found.
4785 * Returns the number of SCTs extracted.
4787 static int ct_extract_tls_extension_scts(SSL *s)
4789 int scts_extracted = 0;
4791 if (s->ext.scts != NULL) {
4792 const unsigned char *p = s->ext.scts;
4793 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
4795 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
4797 SCT_LIST_free(scts);
4800 return scts_extracted;
4804 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4805 * contains an SCT X509 extension. They will be stored in |s->scts|.
4807 * - The number of SCTs extracted, assuming an OCSP response exists.
4808 * - 0 if no OCSP response exists or it contains no SCTs.
4809 * - A negative integer if an error occurs.
4811 static int ct_extract_ocsp_response_scts(SSL *s)
4813 # ifndef OPENSSL_NO_OCSP
4814 int scts_extracted = 0;
4815 const unsigned char *p;
4816 OCSP_BASICRESP *br = NULL;
4817 OCSP_RESPONSE *rsp = NULL;
4818 STACK_OF(SCT) *scts = NULL;
4821 if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
4824 p = s->ext.ocsp.resp;
4825 rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
4829 br = OCSP_response_get1_basic(rsp);
4833 for (i = 0; i < OCSP_resp_count(br); ++i) {
4834 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
4840 OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
4842 ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
4843 if (scts_extracted < 0)
4847 SCT_LIST_free(scts);
4848 OCSP_BASICRESP_free(br);
4849 OCSP_RESPONSE_free(rsp);
4850 return scts_extracted;
4852 /* Behave as if no OCSP response exists */
4858 * Attempts to extract SCTs from the peer certificate.
4859 * Return the number of SCTs extracted, or a negative integer if an error
4862 static int ct_extract_x509v3_extension_scts(SSL *s)
4864 int scts_extracted = 0;
4865 X509 *cert = s->session != NULL ? s->session->peer : NULL;
4868 STACK_OF(SCT) *scts =
4869 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
4872 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
4874 SCT_LIST_free(scts);
4877 return scts_extracted;
4881 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4882 * response (if it exists) and X509v3 extensions in the certificate.
4883 * Returns NULL if an error occurs.
4885 const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
4887 if (!s->scts_parsed) {
4888 if (ct_extract_tls_extension_scts(s) < 0 ||
4889 ct_extract_ocsp_response_scts(s) < 0 ||
4890 ct_extract_x509v3_extension_scts(s) < 0)
4900 static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx,
4901 const STACK_OF(SCT) *scts, void *unused_arg)
4906 static int ct_strict(const CT_POLICY_EVAL_CTX * ctx,
4907 const STACK_OF(SCT) *scts, void *unused_arg)
4909 int count = scts != NULL ? sk_SCT_num(scts) : 0;
4912 for (i = 0; i < count; ++i) {
4913 SCT *sct = sk_SCT_value(scts, i);
4914 int status = SCT_get_validation_status(sct);
4916 if (status == SCT_VALIDATION_STATUS_VALID)
4919 SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS);
4923 int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
4927 * Since code exists that uses the custom extension handler for CT, look
4928 * for this and throw an error if they have already registered to use CT.
4930 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
4931 TLSEXT_TYPE_signed_certificate_timestamp))
4933 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK,
4934 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
4938 if (callback != NULL) {
4940 * If we are validating CT, then we MUST accept SCTs served via OCSP
4942 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
4946 s->ct_validation_callback = callback;
4947 s->ct_validation_callback_arg = arg;
4952 int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
4953 ssl_ct_validation_cb callback, void *arg)
4956 * Since code exists that uses the custom extension handler for CT, look for
4957 * this and throw an error if they have already registered to use CT.
4959 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
4960 TLSEXT_TYPE_signed_certificate_timestamp))
4962 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK,
4963 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
4967 ctx->ct_validation_callback = callback;
4968 ctx->ct_validation_callback_arg = arg;
4972 int SSL_ct_is_enabled(const SSL *s)
4974 return s->ct_validation_callback != NULL;
4977 int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
4979 return ctx->ct_validation_callback != NULL;
4982 int ssl_validate_ct(SSL *s)
4985 X509 *cert = s->session != NULL ? s->session->peer : NULL;
4987 SSL_DANE *dane = &s->dane;
4988 CT_POLICY_EVAL_CTX *ctx = NULL;
4989 const STACK_OF(SCT) *scts;
4992 * If no callback is set, the peer is anonymous, or its chain is invalid,
4993 * skip SCT validation - just return success. Applications that continue
4994 * handshakes without certificates, with unverified chains, or pinned leaf
4995 * certificates are outside the scope of the WebPKI and CT.
4997 * The above exclusions notwithstanding the vast majority of peers will
4998 * have rather ordinary certificate chains validated by typical
4999 * applications that perform certificate verification and therefore will
5000 * process SCTs when enabled.
5002 if (s->ct_validation_callback == NULL || cert == NULL ||
5003 s->verify_result != X509_V_OK ||
5004 s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
5008 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
5009 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
5011 if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
5012 switch (dane->mtlsa->usage) {
5013 case DANETLS_USAGE_DANE_TA:
5014 case DANETLS_USAGE_DANE_EE:
5019 ctx = CT_POLICY_EVAL_CTX_new();
5021 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_VALIDATE_CT,
5022 ERR_R_MALLOC_FAILURE);
5026 issuer = sk_X509_value(s->verified_chain, 1);
5027 CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
5028 CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
5029 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx, s->ctx->ctlog_store);
5030 CT_POLICY_EVAL_CTX_set_time(
5031 ctx, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s)) * 1000);
5033 scts = SSL_get0_peer_scts(s);
5036 * This function returns success (> 0) only when all the SCTs are valid, 0
5037 * when some are invalid, and < 0 on various internal errors (out of
5038 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
5039 * reason to abort the handshake, that decision is up to the callback.
5040 * Therefore, we error out only in the unexpected case that the return
5041 * value is negative.
5043 * XXX: One might well argue that the return value of this function is an
5044 * unfortunate design choice. Its job is only to determine the validation
5045 * status of each of the provided SCTs. So long as it correctly separates
5046 * the wheat from the chaff it should return success. Failure in this case
5047 * ought to correspond to an inability to carry out its duties.
5049 if (SCT_LIST_validate(scts, ctx) < 0) {
5050 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_SSL_VALIDATE_CT,
5051 SSL_R_SCT_VERIFICATION_FAILED);
5055 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
5057 ret = 0; /* This function returns 0 on failure */
5059 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_SSL_VALIDATE_CT,
5060 SSL_R_CALLBACK_FAILED);
5063 CT_POLICY_EVAL_CTX_free(ctx);
5065 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
5066 * failure return code here. Also the application may wish the complete
5067 * the handshake, and then disconnect cleanly at a higher layer, after
5068 * checking the verification status of the completed connection.
5070 * We therefore force a certificate verification failure which will be
5071 * visible via SSL_get_verify_result() and cached as part of any resumed
5074 * Note: the permissive callback is for information gathering only, always
5075 * returns success, and does not affect verification status. Only the
5076 * strict callback or a custom application-specified callback can trigger
5077 * connection failure or record a verification error.
5080 s->verify_result = X509_V_ERR_NO_VALID_SCTS;
5084 int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
5086 switch (validation_mode) {
5088 SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE);
5090 case SSL_CT_VALIDATION_PERMISSIVE:
5091 return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
5092 case SSL_CT_VALIDATION_STRICT:
5093 return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
5097 int SSL_enable_ct(SSL *s, int validation_mode)
5099 switch (validation_mode) {
5101 SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE);
5103 case SSL_CT_VALIDATION_PERMISSIVE:
5104 return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
5105 case SSL_CT_VALIDATION_STRICT:
5106 return SSL_set_ct_validation_callback(s, ct_strict, NULL);
5110 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
5112 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
5115 int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
5117 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
5120 void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs)
5122 CTLOG_STORE_free(ctx->ctlog_store);
5123 ctx->ctlog_store = logs;
5126 const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
5128 return ctx->ctlog_store;
5131 #endif /* OPENSSL_NO_CT */
5133 void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
5136 c->client_hello_cb = cb;
5137 c->client_hello_cb_arg = arg;
5140 int SSL_client_hello_isv2(SSL *s)
5142 if (s->clienthello == NULL)
5144 return s->clienthello->isv2;
5147 unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
5149 if (s->clienthello == NULL)
5151 return s->clienthello->legacy_version;
5154 size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out)
5156 if (s->clienthello == NULL)
5159 *out = s->clienthello->random;
5160 return SSL3_RANDOM_SIZE;
5163 size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
5165 if (s->clienthello == NULL)
5168 *out = s->clienthello->session_id;
5169 return s->clienthello->session_id_len;
5172 size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
5174 if (s->clienthello == NULL)
5177 *out = PACKET_data(&s->clienthello->ciphersuites);
5178 return PACKET_remaining(&s->clienthello->ciphersuites);
5181 size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
5183 if (s->clienthello == NULL)
5186 *out = s->clienthello->compressions;
5187 return s->clienthello->compressions_len;
5190 int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
5196 if (s->clienthello == NULL || out == NULL || outlen == NULL)
5198 for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) {
5199 ext = s->clienthello->pre_proc_exts + i;
5208 if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL) {
5209 SSLerr(SSL_F_SSL_CLIENT_HELLO_GET1_EXTENSIONS_PRESENT,
5210 ERR_R_MALLOC_FAILURE);
5213 for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) {
5214 ext = s->clienthello->pre_proc_exts + i;
5216 if (ext->received_order >= num)
5218 present[ext->received_order] = ext->type;
5225 OPENSSL_free(present);
5229 int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
5235 if (s->clienthello == NULL)
5237 for (i = 0; i < s->clienthello->pre_proc_exts_len; ++i) {
5238 r = s->clienthello->pre_proc_exts + i;
5239 if (r->present && r->type == type) {
5241 *out = PACKET_data(&r->data);
5243 *outlen = PACKET_remaining(&r->data);
5250 int SSL_free_buffers(SSL *ssl)
5252 RECORD_LAYER *rl = &ssl->rlayer;
5254 if (RECORD_LAYER_read_pending(rl) || RECORD_LAYER_write_pending(rl))
5257 RECORD_LAYER_release(rl);
5261 int SSL_alloc_buffers(SSL *ssl)
5263 return ssl3_setup_buffers(ssl);
5266 void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
5268 ctx->keylog_callback = cb;
5271 SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
5273 return ctx->keylog_callback;
5276 static int nss_keylog_int(const char *prefix,
5278 const uint8_t *parameter_1,
5279 size_t parameter_1_len,
5280 const uint8_t *parameter_2,
5281 size_t parameter_2_len)
5284 char *cursor = NULL;
5289 if (ssl->ctx->keylog_callback == NULL)
5293 * Our output buffer will contain the following strings, rendered with
5294 * space characters in between, terminated by a NULL character: first the
5295 * prefix, then the first parameter, then the second parameter. The
5296 * meaning of each parameter depends on the specific key material being
5297 * logged. Note that the first and second parameters are encoded in
5298 * hexadecimal, so we need a buffer that is twice their lengths.
5300 prefix_len = strlen(prefix);
5301 out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
5302 if ((out = cursor = OPENSSL_malloc(out_len)) == NULL) {
5303 SSLfatal(ssl, SSL_AD_INTERNAL_ERROR, SSL_F_NSS_KEYLOG_INT,
5304 ERR_R_MALLOC_FAILURE);
5308 strcpy(cursor, prefix);
5309 cursor += prefix_len;
5312 for (i = 0; i < parameter_1_len; i++) {
5313 sprintf(cursor, "%02x", parameter_1[i]);
5318 for (i = 0; i < parameter_2_len; i++) {
5319 sprintf(cursor, "%02x", parameter_2[i]);
5324 ssl->ctx->keylog_callback(ssl, (const char *)out);
5325 OPENSSL_clear_free(out, out_len);
5330 int ssl_log_rsa_client_key_exchange(SSL *ssl,
5331 const uint8_t *encrypted_premaster,
5332 size_t encrypted_premaster_len,
5333 const uint8_t *premaster,
5334 size_t premaster_len)
5336 if (encrypted_premaster_len < 8) {
5337 SSLfatal(ssl, SSL_AD_INTERNAL_ERROR,
5338 SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
5342 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
5343 return nss_keylog_int("RSA",
5345 encrypted_premaster,
5351 int ssl_log_secret(SSL *ssl,
5353 const uint8_t *secret,
5356 return nss_keylog_int(label,
5358 ssl->s3.client_random,
5364 #define SSLV2_CIPHER_LEN 3
5366 int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites, int sslv2format)
5370 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
5372 if (PACKET_remaining(cipher_suites) == 0) {
5373 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_SSL_CACHE_CIPHERLIST,
5374 SSL_R_NO_CIPHERS_SPECIFIED);
5378 if (PACKET_remaining(cipher_suites) % n != 0) {
5379 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
5380 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
5384 OPENSSL_free(s->s3.tmp.ciphers_raw);
5385 s->s3.tmp.ciphers_raw = NULL;
5386 s->s3.tmp.ciphers_rawlen = 0;
5389 size_t numciphers = PACKET_remaining(cipher_suites) / n;
5390 PACKET sslv2ciphers = *cipher_suites;
5391 unsigned int leadbyte;
5395 * We store the raw ciphers list in SSLv3+ format so we need to do some
5396 * preprocessing to convert the list first. If there are any SSLv2 only
5397 * ciphersuites with a non-zero leading byte then we are going to
5398 * slightly over allocate because we won't store those. But that isn't a
5401 raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
5402 s->s3.tmp.ciphers_raw = raw;
5404 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
5405 ERR_R_MALLOC_FAILURE);
5408 for (s->s3.tmp.ciphers_rawlen = 0;
5409 PACKET_remaining(&sslv2ciphers) > 0;
5410 raw += TLS_CIPHER_LEN) {
5411 if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
5413 && !PACKET_copy_bytes(&sslv2ciphers, raw,
5416 && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
5417 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
5419 OPENSSL_free(s->s3.tmp.ciphers_raw);
5420 s->s3.tmp.ciphers_raw = NULL;
5421 s->s3.tmp.ciphers_rawlen = 0;
5425 s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN;
5427 } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw,
5428 &s->s3.tmp.ciphers_rawlen)) {
5429 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
5430 ERR_R_INTERNAL_ERROR);
5436 int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
5437 int isv2format, STACK_OF(SSL_CIPHER) **sk,
5438 STACK_OF(SSL_CIPHER) **scsvs)
5442 if (!PACKET_buf_init(&pkt, bytes, len))
5444 return bytes_to_cipher_list(s, &pkt, sk, scsvs, isv2format, 0);
5447 int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites,
5448 STACK_OF(SSL_CIPHER) **skp,
5449 STACK_OF(SSL_CIPHER) **scsvs_out,
5450 int sslv2format, int fatal)
5452 const SSL_CIPHER *c;
5453 STACK_OF(SSL_CIPHER) *sk = NULL;
5454 STACK_OF(SSL_CIPHER) *scsvs = NULL;
5456 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
5457 unsigned char cipher[SSLV2_CIPHER_LEN];
5459 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
5461 if (PACKET_remaining(cipher_suites) == 0) {
5463 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_BYTES_TO_CIPHER_LIST,
5464 SSL_R_NO_CIPHERS_SPECIFIED);
5466 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_NO_CIPHERS_SPECIFIED);
5470 if (PACKET_remaining(cipher_suites) % n != 0) {
5472 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,
5473 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
5475 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST,
5476 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
5480 sk = sk_SSL_CIPHER_new_null();
5481 scsvs = sk_SSL_CIPHER_new_null();
5482 if (sk == NULL || scsvs == NULL) {
5484 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,
5485 ERR_R_MALLOC_FAILURE);
5487 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
5491 while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
5493 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
5494 * first byte set to zero, while true SSLv2 ciphers have a non-zero
5495 * first byte. We don't support any true SSLv2 ciphers, so skip them.
5497 if (sslv2format && cipher[0] != '\0')
5500 /* For SSLv2-compat, ignore leading 0-byte. */
5501 c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
5503 if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
5504 (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
5506 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
5507 SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
5509 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
5514 if (PACKET_remaining(cipher_suites) > 0) {
5516 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,
5519 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_BAD_LENGTH);
5526 sk_SSL_CIPHER_free(sk);
5527 if (scsvs_out != NULL)
5530 sk_SSL_CIPHER_free(scsvs);
5533 sk_SSL_CIPHER_free(sk);
5534 sk_SSL_CIPHER_free(scsvs);
5538 int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
5540 ctx->max_early_data = max_early_data;
5545 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
5547 return ctx->max_early_data;
5550 int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
5552 s->max_early_data = max_early_data;
5557 uint32_t SSL_get_max_early_data(const SSL *s)
5559 return s->max_early_data;
5562 int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
5564 ctx->recv_max_early_data = recv_max_early_data;
5569 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
5571 return ctx->recv_max_early_data;
5574 int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
5576 s->recv_max_early_data = recv_max_early_data;
5581 uint32_t SSL_get_recv_max_early_data(const SSL *s)
5583 return s->recv_max_early_data;
5586 __owur unsigned int ssl_get_max_send_fragment(const SSL *ssl)
5588 /* Return any active Max Fragment Len extension */
5589 if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session))
5590 return GET_MAX_FRAGMENT_LENGTH(ssl->session);
5592 /* return current SSL connection setting */
5593 return ssl->max_send_fragment;
5596 __owur unsigned int ssl_get_split_send_fragment(const SSL *ssl)
5598 /* Return a value regarding an active Max Fragment Len extension */
5599 if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session)
5600 && ssl->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(ssl->session))
5601 return GET_MAX_FRAGMENT_LENGTH(ssl->session);
5603 /* else limit |split_send_fragment| to current |max_send_fragment| */
5604 if (ssl->split_send_fragment > ssl->max_send_fragment)
5605 return ssl->max_send_fragment;
5607 /* return current SSL connection setting */
5608 return ssl->split_send_fragment;
5611 int SSL_stateless(SSL *s)
5615 /* Ensure there is no state left over from a previous invocation */
5621 s->s3.flags |= TLS1_FLAGS_STATELESS;
5622 ret = SSL_accept(s);
5623 s->s3.flags &= ~TLS1_FLAGS_STATELESS;
5625 if (ret > 0 && s->ext.cookieok)
5628 if (s->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(s))
5634 void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
5636 ctx->pha_enabled = val;
5639 void SSL_set_post_handshake_auth(SSL *ssl, int val)
5641 ssl->pha_enabled = val;
5644 int SSL_verify_client_post_handshake(SSL *ssl)
5646 if (!SSL_IS_TLS13(ssl)) {
5647 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_WRONG_SSL_VERSION);
5651 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_NOT_SERVER);
5655 if (!SSL_is_init_finished(ssl)) {
5656 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_STILL_IN_INIT);
5660 switch (ssl->post_handshake_auth) {
5662 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_EXTENSION_NOT_RECEIVED);
5665 case SSL_PHA_EXT_SENT:
5666 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, ERR_R_INTERNAL_ERROR);
5668 case SSL_PHA_EXT_RECEIVED:
5670 case SSL_PHA_REQUEST_PENDING:
5671 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_REQUEST_PENDING);
5673 case SSL_PHA_REQUESTED:
5674 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_REQUEST_SENT);
5678 ssl->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
5680 /* checks verify_mode and algorithm_auth */
5681 if (!send_certificate_request(ssl)) {
5682 ssl->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
5683 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_INVALID_CONFIG);
5687 ossl_statem_set_in_init(ssl, 1);
5691 int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
5692 SSL_CTX_generate_session_ticket_fn gen_cb,
5693 SSL_CTX_decrypt_session_ticket_fn dec_cb,
5696 ctx->generate_ticket_cb = gen_cb;
5697 ctx->decrypt_ticket_cb = dec_cb;
5698 ctx->ticket_cb_data = arg;
5702 void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
5703 SSL_allow_early_data_cb_fn cb,
5706 ctx->allow_early_data_cb = cb;
5707 ctx->allow_early_data_cb_data = arg;
5710 void SSL_set_allow_early_data_cb(SSL *s,
5711 SSL_allow_early_data_cb_fn cb,
5714 s->allow_early_data_cb = cb;
5715 s->allow_early_data_cb_data = arg;