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);
1173 /* Make the next call work :-) */
1174 if (s->session != NULL) {
1175 ssl_clear_bad_session(s);
1176 SSL_SESSION_free(s->session);
1178 SSL_SESSION_free(s->psksession);
1179 OPENSSL_free(s->psksession_id);
1183 ssl_cert_free(s->cert);
1184 /* Free up if allocated */
1186 OPENSSL_free(s->ext.hostname);
1187 SSL_CTX_free(s->session_ctx);
1188 #ifndef OPENSSL_NO_EC
1189 OPENSSL_free(s->ext.ecpointformats);
1190 OPENSSL_free(s->ext.supportedgroups);
1191 #endif /* OPENSSL_NO_EC */
1192 sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
1193 #ifndef OPENSSL_NO_OCSP
1194 sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
1196 #ifndef OPENSSL_NO_CT
1197 SCT_LIST_free(s->scts);
1198 OPENSSL_free(s->ext.scts);
1200 OPENSSL_free(s->ext.ocsp.resp);
1201 OPENSSL_free(s->ext.alpn);
1202 OPENSSL_free(s->ext.tls13_cookie);
1203 OPENSSL_free(s->clienthello);
1204 OPENSSL_free(s->pha_context);
1205 EVP_MD_CTX_free(s->pha_dgst);
1207 sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
1208 sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
1210 sk_X509_pop_free(s->verified_chain, X509_free);
1212 if (s->method != NULL)
1213 s->method->ssl_free(s);
1215 SSL_CTX_free(s->ctx);
1217 ASYNC_WAIT_CTX_free(s->waitctx);
1219 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1220 OPENSSL_free(s->ext.npn);
1223 #ifndef OPENSSL_NO_SRTP
1224 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
1227 CRYPTO_THREAD_lock_free(s->lock);
1232 void SSL_set0_rbio(SSL *s, BIO *rbio)
1234 BIO_free_all(s->rbio);
1238 void SSL_set0_wbio(SSL *s, BIO *wbio)
1241 * If the output buffering BIO is still in place, remove it
1243 if (s->bbio != NULL)
1244 s->wbio = BIO_pop(s->wbio);
1246 BIO_free_all(s->wbio);
1249 /* Re-attach |bbio| to the new |wbio|. */
1250 if (s->bbio != NULL)
1251 s->wbio = BIO_push(s->bbio, s->wbio);
1254 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1257 * For historical reasons, this function has many different cases in
1258 * ownership handling.
1261 /* If nothing has changed, do nothing */
1262 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1266 * If the two arguments are equal then one fewer reference is granted by the
1267 * caller than we want to take
1269 if (rbio != NULL && rbio == wbio)
1273 * If only the wbio is changed only adopt one reference.
1275 if (rbio == SSL_get_rbio(s)) {
1276 SSL_set0_wbio(s, wbio);
1280 * There is an asymmetry here for historical reasons. If only the rbio is
1281 * changed AND the rbio and wbio were originally different, then we only
1282 * adopt one reference.
1284 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1285 SSL_set0_rbio(s, rbio);
1289 /* Otherwise, adopt both references. */
1290 SSL_set0_rbio(s, rbio);
1291 SSL_set0_wbio(s, wbio);
1294 BIO *SSL_get_rbio(const SSL *s)
1299 BIO *SSL_get_wbio(const SSL *s)
1301 if (s->bbio != NULL) {
1303 * If |bbio| is active, the true caller-configured BIO is its
1306 return BIO_next(s->bbio);
1311 int SSL_get_fd(const SSL *s)
1313 return SSL_get_rfd(s);
1316 int SSL_get_rfd(const SSL *s)
1321 b = SSL_get_rbio(s);
1322 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1324 BIO_get_fd(r, &ret);
1328 int SSL_get_wfd(const SSL *s)
1333 b = SSL_get_wbio(s);
1334 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1336 BIO_get_fd(r, &ret);
1340 #ifndef OPENSSL_NO_SOCK
1341 int SSL_set_fd(SSL *s, int fd)
1346 bio = BIO_new(BIO_s_socket());
1349 SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
1352 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1353 SSL_set_bio(s, bio, bio);
1354 #ifndef OPENSSL_NO_KTLS
1356 * The new socket is created successfully regardless of ktls_enable.
1357 * ktls_enable doesn't change any functionality of the socket, except
1358 * changing the setsockopt to enable the processing of ktls_start.
1359 * Thus, it is not a problem to call it for non-TLS sockets.
1362 #endif /* OPENSSL_NO_KTLS */
1368 int SSL_set_wfd(SSL *s, int fd)
1370 BIO *rbio = SSL_get_rbio(s);
1372 if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET
1373 || (int)BIO_get_fd(rbio, NULL) != fd) {
1374 BIO *bio = BIO_new(BIO_s_socket());
1377 SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
1380 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1381 SSL_set0_wbio(s, bio);
1382 #ifndef OPENSSL_NO_KTLS
1384 * The new socket is created successfully regardless of ktls_enable.
1385 * ktls_enable doesn't change any functionality of the socket, except
1386 * changing the setsockopt to enable the processing of ktls_start.
1387 * Thus, it is not a problem to call it for non-TLS sockets.
1390 #endif /* OPENSSL_NO_KTLS */
1393 SSL_set0_wbio(s, rbio);
1398 int SSL_set_rfd(SSL *s, int fd)
1400 BIO *wbio = SSL_get_wbio(s);
1402 if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET
1403 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
1404 BIO *bio = BIO_new(BIO_s_socket());
1407 SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
1410 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1411 SSL_set0_rbio(s, bio);
1414 SSL_set0_rbio(s, wbio);
1421 /* return length of latest Finished message we sent, copy to 'buf' */
1422 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
1426 ret = s->s3.tmp.finish_md_len;
1429 memcpy(buf, s->s3.tmp.finish_md, count);
1433 /* return length of latest Finished message we expected, copy to 'buf' */
1434 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
1438 ret = s->s3.tmp.peer_finish_md_len;
1441 memcpy(buf, s->s3.tmp.peer_finish_md, count);
1445 int SSL_get_verify_mode(const SSL *s)
1447 return s->verify_mode;
1450 int SSL_get_verify_depth(const SSL *s)
1452 return X509_VERIFY_PARAM_get_depth(s->param);
1455 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
1456 return s->verify_callback;
1459 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
1461 return ctx->verify_mode;
1464 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
1466 return X509_VERIFY_PARAM_get_depth(ctx->param);
1469 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
1470 return ctx->default_verify_callback;
1473 void SSL_set_verify(SSL *s, int mode,
1474 int (*callback) (int ok, X509_STORE_CTX *ctx))
1476 s->verify_mode = mode;
1477 if (callback != NULL)
1478 s->verify_callback = callback;
1481 void SSL_set_verify_depth(SSL *s, int depth)
1483 X509_VERIFY_PARAM_set_depth(s->param, depth);
1486 void SSL_set_read_ahead(SSL *s, int yes)
1488 RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
1491 int SSL_get_read_ahead(const SSL *s)
1493 return RECORD_LAYER_get_read_ahead(&s->rlayer);
1496 int SSL_pending(const SSL *s)
1498 size_t pending = s->method->ssl_pending(s);
1501 * SSL_pending cannot work properly if read-ahead is enabled
1502 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1503 * impossible to fix since SSL_pending cannot report errors that may be
1504 * observed while scanning the new data. (Note that SSL_pending() is
1505 * often used as a boolean value, so we'd better not return -1.)
1507 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1508 * we just return INT_MAX.
1510 return pending < INT_MAX ? (int)pending : INT_MAX;
1513 int SSL_has_pending(const SSL *s)
1516 * Similar to SSL_pending() but returns a 1 to indicate that we have
1517 * unprocessed data available or 0 otherwise (as opposed to the number of
1518 * bytes available). Unlike SSL_pending() this will take into account
1519 * read_ahead data. A 1 return simply indicates that we have unprocessed
1520 * data. That data may not result in any application data, or we may fail
1521 * to parse the records for some reason.
1523 if (RECORD_LAYER_processed_read_pending(&s->rlayer))
1526 return RECORD_LAYER_read_pending(&s->rlayer);
1529 X509 *SSL_get_peer_certificate(const SSL *s)
1533 if ((s == NULL) || (s->session == NULL))
1536 r = s->session->peer;
1546 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
1550 if ((s == NULL) || (s->session == NULL))
1553 r = s->session->peer_chain;
1556 * If we are a client, cert_chain includes the peer's own certificate; if
1557 * we are a server, it does not.
1564 * Now in theory, since the calling process own 't' it should be safe to
1565 * modify. We need to be able to read f without being hassled
1567 int SSL_copy_session_id(SSL *t, const SSL *f)
1570 /* Do we need to to SSL locking? */
1571 if (!SSL_set_session(t, SSL_get_session(f))) {
1576 * what if we are setup for one protocol version but want to talk another
1578 if (t->method != f->method) {
1579 t->method->ssl_free(t);
1580 t->method = f->method;
1581 if (t->method->ssl_new(t) == 0)
1585 CRYPTO_UP_REF(&f->cert->references, &i, f->cert->lock);
1586 ssl_cert_free(t->cert);
1588 if (!SSL_set_session_id_context(t, f->sid_ctx, (int)f->sid_ctx_length)) {
1595 /* Fix this so it checks all the valid key/cert options */
1596 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
1598 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
1599 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
1602 if (ctx->cert->key->privatekey == NULL) {
1603 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1606 return X509_check_private_key
1607 (ctx->cert->key->x509, ctx->cert->key->privatekey);
1610 /* Fix this function so that it takes an optional type parameter */
1611 int SSL_check_private_key(const SSL *ssl)
1614 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
1617 if (ssl->cert->key->x509 == NULL) {
1618 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
1621 if (ssl->cert->key->privatekey == NULL) {
1622 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1625 return X509_check_private_key(ssl->cert->key->x509,
1626 ssl->cert->key->privatekey);
1629 int SSL_waiting_for_async(SSL *s)
1637 int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
1639 ASYNC_WAIT_CTX *ctx = s->waitctx;
1643 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
1646 int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
1647 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
1649 ASYNC_WAIT_CTX *ctx = s->waitctx;
1653 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
1657 int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback)
1659 ctx->async_cb = callback;
1663 int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg)
1665 ctx->async_cb_arg = arg;
1669 int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback)
1671 s->async_cb = callback;
1675 int SSL_set_async_callback_arg(SSL *s, void *arg)
1677 s->async_cb_arg = arg;
1681 int SSL_get_async_status(SSL *s, int *status)
1683 ASYNC_WAIT_CTX *ctx = s->waitctx;
1687 *status = ASYNC_WAIT_CTX_get_status(ctx);
1691 int SSL_accept(SSL *s)
1693 if (s->handshake_func == NULL) {
1694 /* Not properly initialized yet */
1695 SSL_set_accept_state(s);
1698 return SSL_do_handshake(s);
1701 int SSL_connect(SSL *s)
1703 if (s->handshake_func == NULL) {
1704 /* Not properly initialized yet */
1705 SSL_set_connect_state(s);
1708 return SSL_do_handshake(s);
1711 long SSL_get_default_timeout(const SSL *s)
1713 return s->method->get_timeout();
1716 static int ssl_async_wait_ctx_cb(void *arg)
1718 SSL *s = (SSL *)arg;
1720 return s->async_cb(s, s->async_cb_arg);
1723 static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
1724 int (*func) (void *))
1727 if (s->waitctx == NULL) {
1728 s->waitctx = ASYNC_WAIT_CTX_new();
1729 if (s->waitctx == NULL)
1731 if (s->async_cb != NULL
1732 && !ASYNC_WAIT_CTX_set_callback
1733 (s->waitctx, ssl_async_wait_ctx_cb, s))
1736 switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args,
1737 sizeof(struct ssl_async_args))) {
1739 s->rwstate = SSL_NOTHING;
1740 SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC);
1743 s->rwstate = SSL_ASYNC_PAUSED;
1746 s->rwstate = SSL_ASYNC_NO_JOBS;
1752 s->rwstate = SSL_NOTHING;
1753 SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR);
1754 /* Shouldn't happen */
1759 static int ssl_io_intern(void *vargs)
1761 struct ssl_async_args *args;
1766 args = (struct ssl_async_args *)vargs;
1770 switch (args->type) {
1772 return args->f.func_read(s, buf, num, &s->asyncrw);
1774 return args->f.func_write(s, buf, num, &s->asyncrw);
1776 return args->f.func_other(s);
1781 int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
1783 if (s->handshake_func == NULL) {
1784 SSLerr(SSL_F_SSL_READ_INTERNAL, SSL_R_UNINITIALIZED);
1788 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1789 s->rwstate = SSL_NOTHING;
1793 if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
1794 || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
1795 SSLerr(SSL_F_SSL_READ_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1799 * If we are a client and haven't received the ServerHello etc then we
1802 ossl_statem_check_finish_init(s, 0);
1804 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1805 struct ssl_async_args args;
1811 args.type = READFUNC;
1812 args.f.func_read = s->method->ssl_read;
1814 ret = ssl_start_async_job(s, &args, ssl_io_intern);
1815 *readbytes = s->asyncrw;
1818 return s->method->ssl_read(s, buf, num, readbytes);
1822 int SSL_read(SSL *s, void *buf, int num)
1828 SSLerr(SSL_F_SSL_READ, SSL_R_BAD_LENGTH);
1832 ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
1835 * The cast is safe here because ret should be <= INT_MAX because num is
1839 ret = (int)readbytes;
1844 int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
1846 int ret = ssl_read_internal(s, buf, num, readbytes);
1853 int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
1858 SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1859 return SSL_READ_EARLY_DATA_ERROR;
1862 switch (s->early_data_state) {
1863 case SSL_EARLY_DATA_NONE:
1864 if (!SSL_in_before(s)) {
1865 SSLerr(SSL_F_SSL_READ_EARLY_DATA,
1866 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1867 return SSL_READ_EARLY_DATA_ERROR;
1871 case SSL_EARLY_DATA_ACCEPT_RETRY:
1872 s->early_data_state = SSL_EARLY_DATA_ACCEPTING;
1873 ret = SSL_accept(s);
1876 s->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
1877 return SSL_READ_EARLY_DATA_ERROR;
1881 case SSL_EARLY_DATA_READ_RETRY:
1882 if (s->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
1883 s->early_data_state = SSL_EARLY_DATA_READING;
1884 ret = SSL_read_ex(s, buf, num, readbytes);
1886 * State machine will update early_data_state to
1887 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1890 if (ret > 0 || (ret <= 0 && s->early_data_state
1891 != SSL_EARLY_DATA_FINISHED_READING)) {
1892 s->early_data_state = SSL_EARLY_DATA_READ_RETRY;
1893 return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
1894 : SSL_READ_EARLY_DATA_ERROR;
1897 s->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
1900 return SSL_READ_EARLY_DATA_FINISH;
1903 SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1904 return SSL_READ_EARLY_DATA_ERROR;
1908 int SSL_get_early_data_status(const SSL *s)
1910 return s->ext.early_data;
1913 static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
1915 if (s->handshake_func == NULL) {
1916 SSLerr(SSL_F_SSL_PEEK_INTERNAL, SSL_R_UNINITIALIZED);
1920 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1923 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1924 struct ssl_async_args args;
1930 args.type = READFUNC;
1931 args.f.func_read = s->method->ssl_peek;
1933 ret = ssl_start_async_job(s, &args, ssl_io_intern);
1934 *readbytes = s->asyncrw;
1937 return s->method->ssl_peek(s, buf, num, readbytes);
1941 int SSL_peek(SSL *s, void *buf, int num)
1947 SSLerr(SSL_F_SSL_PEEK, SSL_R_BAD_LENGTH);
1951 ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
1954 * The cast is safe here because ret should be <= INT_MAX because num is
1958 ret = (int)readbytes;
1964 int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
1966 int ret = ssl_peek_internal(s, buf, num, readbytes);
1973 int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written)
1975 if (s->handshake_func == NULL) {
1976 SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_UNINITIALIZED);
1980 if (s->shutdown & SSL_SENT_SHUTDOWN) {
1981 s->rwstate = SSL_NOTHING;
1982 SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_PROTOCOL_IS_SHUTDOWN);
1986 if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
1987 || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
1988 || s->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
1989 SSLerr(SSL_F_SSL_WRITE_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1992 /* If we are a client and haven't sent the Finished we better do that */
1993 ossl_statem_check_finish_init(s, 1);
1995 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1997 struct ssl_async_args args;
2000 args.buf = (void *)buf;
2002 args.type = WRITEFUNC;
2003 args.f.func_write = s->method->ssl_write;
2005 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2006 *written = s->asyncrw;
2009 return s->method->ssl_write(s, buf, num, written);
2013 ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size, int flags)
2017 if (s->handshake_func == NULL) {
2018 SSLerr(SSL_F_SSL_SENDFILE, SSL_R_UNINITIALIZED);
2022 if (s->shutdown & SSL_SENT_SHUTDOWN) {
2023 s->rwstate = SSL_NOTHING;
2024 SSLerr(SSL_F_SSL_SENDFILE, SSL_R_PROTOCOL_IS_SHUTDOWN);
2028 if (!BIO_get_ktls_send(s->wbio)) {
2029 SSLerr(SSL_F_SSL_SENDFILE, SSL_R_UNINITIALIZED);
2033 /* If we have an alert to send, lets send it */
2034 if (s->s3.alert_dispatch) {
2035 ret = (ossl_ssize_t)s->method->ssl_dispatch_alert(s);
2037 /* SSLfatal() already called if appropriate */
2040 /* if it went, fall through and send more stuff */
2043 s->rwstate = SSL_WRITING;
2044 if (BIO_flush(s->wbio) <= 0) {
2045 if (!BIO_should_retry(s->wbio)) {
2046 s->rwstate = SSL_NOTHING;
2049 set_sys_error(EAGAIN);
2055 #ifndef OPENSSL_NO_KTLS
2056 ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags);
2061 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2062 if ((get_last_sys_error() == EAGAIN) ||
2063 (get_last_sys_error() == EINTR) ||
2064 (get_last_sys_error() == EBUSY))
2065 BIO_set_retry_write(s->wbio);
2068 #ifdef OPENSSL_NO_KTLS
2069 SYSerr(SYS_F_SENDFILE, get_last_sys_error());
2071 SSLerr(SSL_F_SSL_SENDFILE, SSL_R_UNINITIALIZED);
2075 s->rwstate = SSL_NOTHING;
2079 int SSL_write(SSL *s, const void *buf, int num)
2085 SSLerr(SSL_F_SSL_WRITE, SSL_R_BAD_LENGTH);
2089 ret = ssl_write_internal(s, buf, (size_t)num, &written);
2092 * The cast is safe here because ret should be <= INT_MAX because num is
2101 int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
2103 int ret = ssl_write_internal(s, buf, num, written);
2110 int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
2112 int ret, early_data_state;
2114 uint32_t partialwrite;
2116 switch (s->early_data_state) {
2117 case SSL_EARLY_DATA_NONE:
2119 || !SSL_in_before(s)
2120 || ((s->session == NULL || s->session->ext.max_early_data == 0)
2121 && (s->psk_use_session_cb == NULL))) {
2122 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA,
2123 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2128 case SSL_EARLY_DATA_CONNECT_RETRY:
2129 s->early_data_state = SSL_EARLY_DATA_CONNECTING;
2130 ret = SSL_connect(s);
2133 s->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
2138 case SSL_EARLY_DATA_WRITE_RETRY:
2139 s->early_data_state = SSL_EARLY_DATA_WRITING;
2141 * We disable partial write for early data because we don't keep track
2142 * of how many bytes we've written between the SSL_write_ex() call and
2143 * the flush if the flush needs to be retried)
2145 partialwrite = s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
2146 s->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
2147 ret = SSL_write_ex(s, buf, num, &writtmp);
2148 s->mode |= partialwrite;
2150 s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2153 s->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
2156 case SSL_EARLY_DATA_WRITE_FLUSH:
2157 /* The buffering BIO is still in place so we need to flush it */
2158 if (statem_flush(s) != 1)
2161 s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2164 case SSL_EARLY_DATA_FINISHED_READING:
2165 case SSL_EARLY_DATA_READ_RETRY:
2166 early_data_state = s->early_data_state;
2167 /* We are a server writing to an unauthenticated client */
2168 s->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
2169 ret = SSL_write_ex(s, buf, num, written);
2170 /* The buffering BIO is still in place */
2172 (void)BIO_flush(s->wbio);
2173 s->early_data_state = early_data_state;
2177 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2182 int SSL_shutdown(SSL *s)
2185 * Note that this function behaves differently from what one might
2186 * expect. Return values are 0 for no success (yet), 1 for success; but
2187 * calling it once is usually not enough, even if blocking I/O is used
2188 * (see ssl3_shutdown).
2191 if (s->handshake_func == NULL) {
2192 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
2196 if (!SSL_in_init(s)) {
2197 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2198 struct ssl_async_args args;
2201 args.type = OTHERFUNC;
2202 args.f.func_other = s->method->ssl_shutdown;
2204 return ssl_start_async_job(s, &args, ssl_io_intern);
2206 return s->method->ssl_shutdown(s);
2209 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT);
2214 int SSL_key_update(SSL *s, int updatetype)
2217 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
2218 * negotiated, and that it is appropriate to call SSL_key_update() instead
2219 * of SSL_renegotiate().
2221 if (!SSL_IS_TLS13(s)) {
2222 SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_WRONG_SSL_VERSION);
2226 if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
2227 && updatetype != SSL_KEY_UPDATE_REQUESTED) {
2228 SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_INVALID_KEY_UPDATE_TYPE);
2232 if (!SSL_is_init_finished(s)) {
2233 SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_STILL_IN_INIT);
2237 ossl_statem_set_in_init(s, 1);
2238 s->key_update = updatetype;
2242 int SSL_get_key_update_type(const SSL *s)
2244 return s->key_update;
2247 int SSL_renegotiate(SSL *s)
2249 if (SSL_IS_TLS13(s)) {
2250 SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_WRONG_SSL_VERSION);
2254 if ((s->options & SSL_OP_NO_RENEGOTIATION)) {
2255 SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_NO_RENEGOTIATION);
2262 return s->method->ssl_renegotiate(s);
2265 int SSL_renegotiate_abbreviated(SSL *s)
2267 if (SSL_IS_TLS13(s)) {
2268 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_WRONG_SSL_VERSION);
2272 if ((s->options & SSL_OP_NO_RENEGOTIATION)) {
2273 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_NO_RENEGOTIATION);
2280 return s->method->ssl_renegotiate(s);
2283 int SSL_renegotiate_pending(const SSL *s)
2286 * becomes true when negotiation is requested; false again once a
2287 * handshake has finished
2289 return (s->renegotiate != 0);
2292 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
2297 case SSL_CTRL_GET_READ_AHEAD:
2298 return RECORD_LAYER_get_read_ahead(&s->rlayer);
2299 case SSL_CTRL_SET_READ_AHEAD:
2300 l = RECORD_LAYER_get_read_ahead(&s->rlayer);
2301 RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
2304 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
2305 s->msg_callback_arg = parg;
2309 return (s->mode |= larg);
2310 case SSL_CTRL_CLEAR_MODE:
2311 return (s->mode &= ~larg);
2312 case SSL_CTRL_GET_MAX_CERT_LIST:
2313 return (long)s->max_cert_list;
2314 case SSL_CTRL_SET_MAX_CERT_LIST:
2317 l = (long)s->max_cert_list;
2318 s->max_cert_list = (size_t)larg;
2320 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2321 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2323 #ifndef OPENSSL_NO_KTLS
2324 if (s->wbio != NULL && BIO_get_ktls_send(s->wbio))
2326 #endif /* OPENSSL_NO_KTLS */
2327 s->max_send_fragment = larg;
2328 if (s->max_send_fragment < s->split_send_fragment)
2329 s->split_send_fragment = s->max_send_fragment;
2331 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2332 if ((size_t)larg > s->max_send_fragment || larg == 0)
2334 s->split_send_fragment = larg;
2336 case SSL_CTRL_SET_MAX_PIPELINES:
2337 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2339 s->max_pipelines = larg;
2341 RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
2343 case SSL_CTRL_GET_RI_SUPPORT:
2344 return s->s3.send_connection_binding;
2345 case SSL_CTRL_CERT_FLAGS:
2346 return (s->cert->cert_flags |= larg);
2347 case SSL_CTRL_CLEAR_CERT_FLAGS:
2348 return (s->cert->cert_flags &= ~larg);
2350 case SSL_CTRL_GET_RAW_CIPHERLIST:
2352 if (s->s3.tmp.ciphers_raw == NULL)
2354 *(unsigned char **)parg = s->s3.tmp.ciphers_raw;
2355 return (int)s->s3.tmp.ciphers_rawlen;
2357 return TLS_CIPHER_LEN;
2359 case SSL_CTRL_GET_EXTMS_SUPPORT:
2360 if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s))
2362 if (s->session->flags & SSL_SESS_FLAG_EXTMS)
2366 case SSL_CTRL_SET_MIN_PROTO_VERSION:
2367 return ssl_check_allowed_versions(larg, s->max_proto_version)
2368 && ssl_set_version_bound(s->ctx->method->version, (int)larg,
2369 &s->min_proto_version);
2370 case SSL_CTRL_GET_MIN_PROTO_VERSION:
2371 return s->min_proto_version;
2372 case SSL_CTRL_SET_MAX_PROTO_VERSION:
2373 return ssl_check_allowed_versions(s->min_proto_version, larg)
2374 && ssl_set_version_bound(s->ctx->method->version, (int)larg,
2375 &s->max_proto_version);
2376 case SSL_CTRL_GET_MAX_PROTO_VERSION:
2377 return s->max_proto_version;
2379 return s->method->ssl_ctrl(s, cmd, larg, parg);
2383 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
2386 case SSL_CTRL_SET_MSG_CALLBACK:
2387 s->msg_callback = (void (*)
2388 (int write_p, int version, int content_type,
2389 const void *buf, size_t len, SSL *ssl,
2394 return s->method->ssl_callback_ctrl(s, cmd, fp);
2398 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
2400 return ctx->sessions;
2403 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
2406 /* For some cases with ctx == NULL perform syntax checks */
2409 #ifndef OPENSSL_NO_EC
2410 case SSL_CTRL_SET_GROUPS_LIST:
2411 return tls1_set_groups_list(NULL, NULL, parg);
2413 case SSL_CTRL_SET_SIGALGS_LIST:
2414 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
2415 return tls1_set_sigalgs_list(NULL, parg, 0);
2422 case SSL_CTRL_GET_READ_AHEAD:
2423 return ctx->read_ahead;
2424 case SSL_CTRL_SET_READ_AHEAD:
2425 l = ctx->read_ahead;
2426 ctx->read_ahead = larg;
2429 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
2430 ctx->msg_callback_arg = parg;
2433 case SSL_CTRL_GET_MAX_CERT_LIST:
2434 return (long)ctx->max_cert_list;
2435 case SSL_CTRL_SET_MAX_CERT_LIST:
2438 l = (long)ctx->max_cert_list;
2439 ctx->max_cert_list = (size_t)larg;
2442 case SSL_CTRL_SET_SESS_CACHE_SIZE:
2445 l = (long)ctx->session_cache_size;
2446 ctx->session_cache_size = (size_t)larg;
2448 case SSL_CTRL_GET_SESS_CACHE_SIZE:
2449 return (long)ctx->session_cache_size;
2450 case SSL_CTRL_SET_SESS_CACHE_MODE:
2451 l = ctx->session_cache_mode;
2452 ctx->session_cache_mode = larg;
2454 case SSL_CTRL_GET_SESS_CACHE_MODE:
2455 return ctx->session_cache_mode;
2457 case SSL_CTRL_SESS_NUMBER:
2458 return lh_SSL_SESSION_num_items(ctx->sessions);
2459 case SSL_CTRL_SESS_CONNECT:
2460 return tsan_load(&ctx->stats.sess_connect);
2461 case SSL_CTRL_SESS_CONNECT_GOOD:
2462 return tsan_load(&ctx->stats.sess_connect_good);
2463 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
2464 return tsan_load(&ctx->stats.sess_connect_renegotiate);
2465 case SSL_CTRL_SESS_ACCEPT:
2466 return tsan_load(&ctx->stats.sess_accept);
2467 case SSL_CTRL_SESS_ACCEPT_GOOD:
2468 return tsan_load(&ctx->stats.sess_accept_good);
2469 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
2470 return tsan_load(&ctx->stats.sess_accept_renegotiate);
2471 case SSL_CTRL_SESS_HIT:
2472 return tsan_load(&ctx->stats.sess_hit);
2473 case SSL_CTRL_SESS_CB_HIT:
2474 return tsan_load(&ctx->stats.sess_cb_hit);
2475 case SSL_CTRL_SESS_MISSES:
2476 return tsan_load(&ctx->stats.sess_miss);
2477 case SSL_CTRL_SESS_TIMEOUTS:
2478 return tsan_load(&ctx->stats.sess_timeout);
2479 case SSL_CTRL_SESS_CACHE_FULL:
2480 return tsan_load(&ctx->stats.sess_cache_full);
2482 return (ctx->mode |= larg);
2483 case SSL_CTRL_CLEAR_MODE:
2484 return (ctx->mode &= ~larg);
2485 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2486 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2488 ctx->max_send_fragment = larg;
2489 if (ctx->max_send_fragment < ctx->split_send_fragment)
2490 ctx->split_send_fragment = ctx->max_send_fragment;
2492 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2493 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
2495 ctx->split_send_fragment = larg;
2497 case SSL_CTRL_SET_MAX_PIPELINES:
2498 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2500 ctx->max_pipelines = larg;
2502 case SSL_CTRL_CERT_FLAGS:
2503 return (ctx->cert->cert_flags |= larg);
2504 case SSL_CTRL_CLEAR_CERT_FLAGS:
2505 return (ctx->cert->cert_flags &= ~larg);
2506 case SSL_CTRL_SET_MIN_PROTO_VERSION:
2507 return ssl_check_allowed_versions(larg, ctx->max_proto_version)
2508 && ssl_set_version_bound(ctx->method->version, (int)larg,
2509 &ctx->min_proto_version);
2510 case SSL_CTRL_GET_MIN_PROTO_VERSION:
2511 return ctx->min_proto_version;
2512 case SSL_CTRL_SET_MAX_PROTO_VERSION:
2513 return ssl_check_allowed_versions(ctx->min_proto_version, larg)
2514 && ssl_set_version_bound(ctx->method->version, (int)larg,
2515 &ctx->max_proto_version);
2516 case SSL_CTRL_GET_MAX_PROTO_VERSION:
2517 return ctx->max_proto_version;
2519 return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
2523 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
2526 case SSL_CTRL_SET_MSG_CALLBACK:
2527 ctx->msg_callback = (void (*)
2528 (int write_p, int version, int content_type,
2529 const void *buf, size_t len, SSL *ssl,
2534 return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
2538 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
2547 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
2548 const SSL_CIPHER *const *bp)
2550 if ((*ap)->id > (*bp)->id)
2552 if ((*ap)->id < (*bp)->id)
2557 /** return a STACK of the ciphers available for the SSL and in order of
2559 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
2562 if (s->cipher_list != NULL) {
2563 return s->cipher_list;
2564 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
2565 return s->ctx->cipher_list;
2571 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
2573 if ((s == NULL) || (s->session == NULL) || !s->server)
2575 return s->session->ciphers;
2578 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
2580 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
2583 ciphers = SSL_get_ciphers(s);
2586 if (!ssl_set_client_disabled(s))
2588 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
2589 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
2590 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
2592 sk = sk_SSL_CIPHER_new_null();
2595 if (!sk_SSL_CIPHER_push(sk, c)) {
2596 sk_SSL_CIPHER_free(sk);
2604 /** return a STACK of the ciphers available for the SSL and in order of
2606 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
2609 if (s->cipher_list_by_id != NULL) {
2610 return s->cipher_list_by_id;
2611 } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
2612 return s->ctx->cipher_list_by_id;
2618 /** The old interface to get the same thing as SSL_get_ciphers() */
2619 const char *SSL_get_cipher_list(const SSL *s, int n)
2621 const SSL_CIPHER *c;
2622 STACK_OF(SSL_CIPHER) *sk;
2626 sk = SSL_get_ciphers(s);
2627 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
2629 c = sk_SSL_CIPHER_value(sk, n);
2635 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2637 STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
2640 return ctx->cipher_list;
2645 * Distinguish between ciphers controlled by set_ciphersuite() and
2646 * set_cipher_list() when counting.
2648 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
2651 const SSL_CIPHER *c;
2655 for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
2656 c = sk_SSL_CIPHER_value(sk, i);
2657 if (c->min_tls >= TLS1_3_VERSION)
2664 /** specify the ciphers to be used by default by the SSL_CTX */
2665 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
2667 STACK_OF(SSL_CIPHER) *sk;
2669 sk = ssl_create_cipher_list(ctx->method, ctx->tls13_ciphersuites,
2670 &ctx->cipher_list, &ctx->cipher_list_by_id, str,
2673 * ssl_create_cipher_list may return an empty stack if it was unable to
2674 * find a cipher matching the given rule string (for example if the rule
2675 * string specifies a cipher which has been disabled). This is not an
2676 * error as far as ssl_create_cipher_list is concerned, and hence
2677 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2681 else if (cipher_list_tls12_num(sk) == 0) {
2682 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
2688 /** specify the ciphers to be used by the SSL */
2689 int SSL_set_cipher_list(SSL *s, const char *str)
2691 STACK_OF(SSL_CIPHER) *sk;
2693 sk = ssl_create_cipher_list(s->ctx->method, s->tls13_ciphersuites,
2694 &s->cipher_list, &s->cipher_list_by_id, str,
2696 /* see comment in SSL_CTX_set_cipher_list */
2699 else if (cipher_list_tls12_num(sk) == 0) {
2700 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
2706 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
2709 STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
2710 const SSL_CIPHER *c;
2714 || s->session == NULL
2715 || s->session->ciphers == NULL
2720 clntsk = s->session->ciphers;
2721 srvrsk = SSL_get_ciphers(s);
2722 if (clntsk == NULL || srvrsk == NULL)
2725 if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
2728 for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
2731 c = sk_SSL_CIPHER_value(clntsk, i);
2732 if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
2735 n = strlen(c->name);
2751 /** return a servername extension value if provided in Client Hello, or NULL.
2752 * So far, only host_name types are defined (RFC 3546).
2755 const char *SSL_get_servername(const SSL *s, const int type)
2757 if (type != TLSEXT_NAMETYPE_host_name)
2761 * SNI is not negotiated in pre-TLS-1.3 resumption flows, so fake up an
2762 * SNI value to return if we are resuming/resumed. N.B. that we still
2763 * call the relevant callbacks for such resumption flows, and callbacks
2764 * might error out if there is not a SNI value available.
2767 return s->session->ext.hostname;
2768 return s->ext.hostname;
2771 int SSL_get_servername_type(const SSL *s)
2774 && (!s->ext.hostname ? s->session->
2775 ext.hostname : s->ext.hostname))
2776 return TLSEXT_NAMETYPE_host_name;
2781 * SSL_select_next_proto implements the standard protocol selection. It is
2782 * expected that this function is called from the callback set by
2783 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2784 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2785 * not included in the length. A byte string of length 0 is invalid. No byte
2786 * string may be truncated. The current, but experimental algorithm for
2787 * selecting the protocol is: 1) If the server doesn't support NPN then this
2788 * is indicated to the callback. In this case, the client application has to
2789 * abort the connection or have a default application level protocol. 2) If
2790 * the server supports NPN, but advertises an empty list then the client
2791 * selects the first protocol in its list, but indicates via the API that this
2792 * fallback case was enacted. 3) Otherwise, the client finds the first
2793 * protocol in the server's list that it supports and selects this protocol.
2794 * This is because it's assumed that the server has better information about
2795 * which protocol a client should use. 4) If the client doesn't support any
2796 * of the server's advertised protocols, then this is treated the same as
2797 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2798 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2800 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
2801 const unsigned char *server,
2802 unsigned int server_len,
2803 const unsigned char *client, unsigned int client_len)
2806 const unsigned char *result;
2807 int status = OPENSSL_NPN_UNSUPPORTED;
2810 * For each protocol in server preference order, see if we support it.
2812 for (i = 0; i < server_len;) {
2813 for (j = 0; j < client_len;) {
2814 if (server[i] == client[j] &&
2815 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
2816 /* We found a match */
2817 result = &server[i];
2818 status = OPENSSL_NPN_NEGOTIATED;
2828 /* There's no overlap between our protocols and the server's list. */
2830 status = OPENSSL_NPN_NO_OVERLAP;
2833 *out = (unsigned char *)result + 1;
2834 *outlen = result[0];
2838 #ifndef OPENSSL_NO_NEXTPROTONEG
2840 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2841 * client's requested protocol for this connection and returns 0. If the
2842 * client didn't request any protocol, then *data is set to NULL. Note that
2843 * the client can request any protocol it chooses. The value returned from
2844 * this function need not be a member of the list of supported protocols
2845 * provided by the callback.
2847 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
2854 *len = (unsigned int)s->ext.npn_len;
2859 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2860 * a TLS server needs a list of supported protocols for Next Protocol
2861 * Negotiation. The returned list must be in wire format. The list is
2862 * returned by setting |out| to point to it and |outlen| to its length. This
2863 * memory will not be modified, but one should assume that the SSL* keeps a
2864 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2865 * wishes to advertise. Otherwise, no such extension will be included in the
2868 void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
2869 SSL_CTX_npn_advertised_cb_func cb,
2872 ctx->ext.npn_advertised_cb = cb;
2873 ctx->ext.npn_advertised_cb_arg = arg;
2877 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2878 * client needs to select a protocol from the server's provided list. |out|
2879 * must be set to point to the selected protocol (which may be within |in|).
2880 * The length of the protocol name must be written into |outlen|. The
2881 * server's advertised protocols are provided in |in| and |inlen|. The
2882 * callback can assume that |in| is syntactically valid. The client must
2883 * select a protocol. It is fatal to the connection if this callback returns
2884 * a value other than SSL_TLSEXT_ERR_OK.
2886 void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
2887 SSL_CTX_npn_select_cb_func cb,
2890 ctx->ext.npn_select_cb = cb;
2891 ctx->ext.npn_select_cb_arg = arg;
2896 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2897 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2898 * length-prefixed strings). Returns 0 on success.
2900 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
2901 unsigned int protos_len)
2903 OPENSSL_free(ctx->ext.alpn);
2904 ctx->ext.alpn = OPENSSL_memdup(protos, protos_len);
2905 if (ctx->ext.alpn == NULL) {
2906 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE);
2909 ctx->ext.alpn_len = protos_len;
2915 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2916 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2917 * length-prefixed strings). Returns 0 on success.
2919 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
2920 unsigned int protos_len)
2922 OPENSSL_free(ssl->ext.alpn);
2923 ssl->ext.alpn = OPENSSL_memdup(protos, protos_len);
2924 if (ssl->ext.alpn == NULL) {
2925 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE);
2928 ssl->ext.alpn_len = protos_len;
2934 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2935 * called during ClientHello processing in order to select an ALPN protocol
2936 * from the client's list of offered protocols.
2938 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
2939 SSL_CTX_alpn_select_cb_func cb,
2942 ctx->ext.alpn_select_cb = cb;
2943 ctx->ext.alpn_select_cb_arg = arg;
2947 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
2948 * On return it sets |*data| to point to |*len| bytes of protocol name
2949 * (not including the leading length-prefix byte). If the server didn't
2950 * respond with a negotiated protocol then |*len| will be zero.
2952 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
2955 *data = ssl->s3.alpn_selected;
2959 *len = (unsigned int)ssl->s3.alpn_selected_len;
2962 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
2963 const char *label, size_t llen,
2964 const unsigned char *context, size_t contextlen,
2967 if (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER)
2970 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
2972 contextlen, use_context);
2975 int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
2976 const char *label, size_t llen,
2977 const unsigned char *context,
2980 if (s->version != TLS1_3_VERSION)
2983 return tls13_export_keying_material_early(s, out, olen, label, llen,
2984 context, contextlen);
2987 static unsigned long ssl_session_hash(const SSL_SESSION *a)
2989 const unsigned char *session_id = a->session_id;
2991 unsigned char tmp_storage[4];
2993 if (a->session_id_length < sizeof(tmp_storage)) {
2994 memset(tmp_storage, 0, sizeof(tmp_storage));
2995 memcpy(tmp_storage, a->session_id, a->session_id_length);
2996 session_id = tmp_storage;
3000 ((unsigned long)session_id[0]) |
3001 ((unsigned long)session_id[1] << 8L) |
3002 ((unsigned long)session_id[2] << 16L) |
3003 ((unsigned long)session_id[3] << 24L);
3008 * NB: If this function (or indeed the hash function which uses a sort of
3009 * coarser function than this one) is changed, ensure
3010 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3011 * being able to construct an SSL_SESSION that will collide with any existing
3012 * session with a matching session ID.
3014 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
3016 if (a->ssl_version != b->ssl_version)
3018 if (a->session_id_length != b->session_id_length)
3020 return memcmp(a->session_id, b->session_id, a->session_id_length);
3024 * These wrapper functions should remain rather than redeclaring
3025 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3026 * variable. The reason is that the functions aren't static, they're exposed
3030 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
3032 SSL_CTX *ret = NULL;
3035 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
3039 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
3042 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3043 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
3046 ret = OPENSSL_zalloc(sizeof(*ret));
3051 ret->min_proto_version = 0;
3052 ret->max_proto_version = 0;
3053 ret->mode = SSL_MODE_AUTO_RETRY;
3054 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
3055 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
3056 /* We take the system default. */
3057 ret->session_timeout = meth->get_timeout();
3058 ret->references = 1;
3059 ret->lock = CRYPTO_THREAD_lock_new();
3060 if (ret->lock == NULL) {
3061 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
3065 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
3066 ret->verify_mode = SSL_VERIFY_NONE;
3067 if ((ret->cert = ssl_cert_new()) == NULL)
3070 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
3071 if (ret->sessions == NULL)
3073 ret->cert_store = X509_STORE_new();
3074 if (ret->cert_store == NULL)
3076 #ifndef OPENSSL_NO_CT
3077 ret->ctlog_store = CTLOG_STORE_new();
3078 if (ret->ctlog_store == NULL)
3082 if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites()))
3085 if (!ssl_create_cipher_list(ret->method,
3086 ret->tls13_ciphersuites,
3087 &ret->cipher_list, &ret->cipher_list_by_id,
3088 OSSL_default_cipher_list(), ret->cert)
3089 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
3090 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
3094 ret->param = X509_VERIFY_PARAM_new();
3095 if (ret->param == NULL)
3098 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
3099 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
3102 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
3103 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
3107 if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL)
3110 if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL)
3113 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data))
3116 if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
3119 /* No compression for DTLS */
3120 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
3121 ret->comp_methods = SSL_COMP_get_compression_methods();
3123 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3124 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3126 /* Setup RFC5077 ticket keys */
3127 if ((RAND_bytes(ret->ext.tick_key_name,
3128 sizeof(ret->ext.tick_key_name)) <= 0)
3129 || (RAND_priv_bytes(ret->ext.secure->tick_hmac_key,
3130 sizeof(ret->ext.secure->tick_hmac_key)) <= 0)
3131 || (RAND_priv_bytes(ret->ext.secure->tick_aes_key,
3132 sizeof(ret->ext.secure->tick_aes_key)) <= 0))
3133 ret->options |= SSL_OP_NO_TICKET;
3135 if (RAND_priv_bytes(ret->ext.cookie_hmac_key,
3136 sizeof(ret->ext.cookie_hmac_key)) <= 0)
3139 #ifndef OPENSSL_NO_SRP
3140 if (!SSL_CTX_SRP_CTX_init(ret))
3143 #ifndef OPENSSL_NO_ENGINE
3144 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3145 # define eng_strx(x) #x
3146 # define eng_str(x) eng_strx(x)
3147 /* Use specific client engine automatically... ignore errors */
3150 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3153 ENGINE_load_builtin_engines();
3154 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3156 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
3162 * Default is to connect to non-RI servers. When RI is more widely
3163 * deployed might change this.
3165 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
3167 * Disable compression by default to prevent CRIME. Applications can
3168 * re-enable compression by configuring
3169 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3170 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3171 * middlebox compatibility by default. This may be disabled by default in
3172 * a later OpenSSL version.
3174 ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
3176 ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
3179 * We cannot usefully set a default max_early_data here (which gets
3180 * propagated in SSL_new(), for the following reason: setting the
3181 * SSL field causes tls_construct_stoc_early_data() to tell the
3182 * client that early data will be accepted when constructing a TLS 1.3
3183 * session ticket, and the client will accordingly send us early data
3184 * when using that ticket (if the client has early data to send).
3185 * However, in order for the early data to actually be consumed by
3186 * the application, the application must also have calls to
3187 * SSL_read_early_data(); otherwise we'll just skip past the early data
3188 * and ignore it. So, since the application must add calls to
3189 * SSL_read_early_data(), we also require them to add
3190 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3191 * eliminating the bandwidth-wasting early data in the case described
3194 ret->max_early_data = 0;
3197 * Default recv_max_early_data is a fully loaded single record. Could be
3198 * split across multiple records in practice. We set this differently to
3199 * max_early_data so that, in the default case, we do not advertise any
3200 * support for early_data, but if a client were to send us some (e.g.
3201 * because of an old, stale ticket) then we will tolerate it and skip over
3204 ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
3206 /* By default we send two session tickets automatically in TLSv1.3 */
3207 ret->num_tickets = 2;
3209 ssl_ctx_system_config(ret);
3213 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
3219 int SSL_CTX_up_ref(SSL_CTX *ctx)
3223 if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0)
3226 REF_PRINT_COUNT("SSL_CTX", ctx);
3227 REF_ASSERT_ISNT(i < 2);
3228 return ((i > 1) ? 1 : 0);
3231 void SSL_CTX_free(SSL_CTX *a)
3238 CRYPTO_DOWN_REF(&a->references, &i, a->lock);
3239 REF_PRINT_COUNT("SSL_CTX", a);
3242 REF_ASSERT_ISNT(i < 0);
3244 X509_VERIFY_PARAM_free(a->param);
3245 dane_ctx_final(&a->dane);
3248 * Free internal session cache. However: the remove_cb() may reference
3249 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3250 * after the sessions were flushed.
3251 * As the ex_data handling routines might also touch the session cache,
3252 * the most secure solution seems to be: empty (flush) the cache, then
3253 * free ex_data, then finally free the cache.
3254 * (See ticket [openssl.org #212].)
3256 if (a->sessions != NULL)
3257 SSL_CTX_flush_sessions(a, 0);
3259 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
3260 lh_SSL_SESSION_free(a->sessions);
3261 X509_STORE_free(a->cert_store);
3262 #ifndef OPENSSL_NO_CT
3263 CTLOG_STORE_free(a->ctlog_store);
3265 sk_SSL_CIPHER_free(a->cipher_list);
3266 sk_SSL_CIPHER_free(a->cipher_list_by_id);
3267 sk_SSL_CIPHER_free(a->tls13_ciphersuites);
3268 ssl_cert_free(a->cert);
3269 sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
3270 sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
3271 sk_X509_pop_free(a->extra_certs, X509_free);
3272 a->comp_methods = NULL;
3273 #ifndef OPENSSL_NO_SRTP
3274 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
3276 #ifndef OPENSSL_NO_SRP
3277 SSL_CTX_SRP_CTX_free(a);
3279 #ifndef OPENSSL_NO_ENGINE
3280 ENGINE_finish(a->client_cert_engine);
3283 #ifndef OPENSSL_NO_EC
3284 OPENSSL_free(a->ext.ecpointformats);
3285 OPENSSL_free(a->ext.supportedgroups);
3287 OPENSSL_free(a->ext.alpn);
3288 OPENSSL_secure_free(a->ext.secure);
3290 CRYPTO_THREAD_lock_free(a->lock);
3295 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
3297 ctx->default_passwd_callback = cb;
3300 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
3302 ctx->default_passwd_callback_userdata = u;
3305 pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
3307 return ctx->default_passwd_callback;
3310 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
3312 return ctx->default_passwd_callback_userdata;
3315 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
3317 s->default_passwd_callback = cb;
3320 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
3322 s->default_passwd_callback_userdata = u;
3325 pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
3327 return s->default_passwd_callback;
3330 void *SSL_get_default_passwd_cb_userdata(SSL *s)
3332 return s->default_passwd_callback_userdata;
3335 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
3336 int (*cb) (X509_STORE_CTX *, void *),
3339 ctx->app_verify_callback = cb;
3340 ctx->app_verify_arg = arg;
3343 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
3344 int (*cb) (int, X509_STORE_CTX *))
3346 ctx->verify_mode = mode;
3347 ctx->default_verify_callback = cb;
3350 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
3352 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
3355 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
3357 ssl_cert_set_cert_cb(c->cert, cb, arg);
3360 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
3362 ssl_cert_set_cert_cb(s->cert, cb, arg);
3365 void ssl_set_masks(SSL *s)
3368 uint32_t *pvalid = s->s3.tmp.valid_flags;
3369 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
3370 unsigned long mask_k, mask_a;
3371 #ifndef OPENSSL_NO_EC
3372 int have_ecc_cert, ecdsa_ok;
3377 #ifndef OPENSSL_NO_DH
3378 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
3383 rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
3384 rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
3385 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
3386 #ifndef OPENSSL_NO_EC
3387 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
3392 OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
3393 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
3395 #ifndef OPENSSL_NO_GOST
3396 if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
3397 mask_k |= SSL_kGOST;
3398 mask_a |= SSL_aGOST12;
3400 if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
3401 mask_k |= SSL_kGOST;
3402 mask_a |= SSL_aGOST12;
3404 if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
3405 mask_k |= SSL_kGOST;
3406 mask_a |= SSL_aGOST01;
3417 * If we only have an RSA-PSS certificate allow RSA authentication
3418 * if TLS 1.2 and peer supports it.
3421 if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
3422 && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
3423 && TLS1_get_version(s) == TLS1_2_VERSION))
3430 mask_a |= SSL_aNULL;
3433 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
3434 * depending on the key usage extension.
3436 #ifndef OPENSSL_NO_EC
3437 if (have_ecc_cert) {
3439 ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
3440 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
3441 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
3444 mask_a |= SSL_aECDSA;
3446 /* Allow Ed25519 for TLS 1.2 if peer supports it */
3447 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
3448 && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
3449 && TLS1_get_version(s) == TLS1_2_VERSION)
3450 mask_a |= SSL_aECDSA;
3452 /* Allow Ed448 for TLS 1.2 if peer supports it */
3453 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
3454 && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
3455 && TLS1_get_version(s) == TLS1_2_VERSION)
3456 mask_a |= SSL_aECDSA;
3459 #ifndef OPENSSL_NO_EC
3460 mask_k |= SSL_kECDHE;
3463 #ifndef OPENSSL_NO_PSK
3466 if (mask_k & SSL_kRSA)
3467 mask_k |= SSL_kRSAPSK;
3468 if (mask_k & SSL_kDHE)
3469 mask_k |= SSL_kDHEPSK;
3470 if (mask_k & SSL_kECDHE)
3471 mask_k |= SSL_kECDHEPSK;
3474 s->s3.tmp.mask_k = mask_k;
3475 s->s3.tmp.mask_a = mask_a;
3478 #ifndef OPENSSL_NO_EC
3480 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
3482 if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
3483 /* key usage, if present, must allow signing */
3484 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
3485 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
3486 SSL_R_ECC_CERT_NOT_FOR_SIGNING);
3490 return 1; /* all checks are ok */
3495 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
3496 size_t *serverinfo_length)
3498 CERT_PKEY *cpk = s->s3.tmp.cert;
3499 *serverinfo_length = 0;
3501 if (cpk == NULL || cpk->serverinfo == NULL)
3504 *serverinfo = cpk->serverinfo;
3505 *serverinfo_length = cpk->serverinfo_length;
3509 void ssl_update_cache(SSL *s, int mode)
3514 * If the session_id_length is 0, we are not supposed to cache it, and it
3515 * would be rather hard to do anyway :-)
3517 if (s->session->session_id_length == 0)
3521 * If sid_ctx_length is 0 there is no specific application context
3522 * associated with this session, so when we try to resume it and
3523 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
3524 * indication that this is actually a session for the proper application
3525 * context, and the *handshake* will fail, not just the resumption attempt.
3526 * Do not cache (on the server) these sessions that are not resumable
3527 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
3529 if (s->server && s->session->sid_ctx_length == 0
3530 && (s->verify_mode & SSL_VERIFY_PEER) != 0)
3533 i = s->session_ctx->session_cache_mode;
3535 && (!s->hit || SSL_IS_TLS13(s))) {
3537 * Add the session to the internal cache. In server side TLSv1.3 we
3538 * normally don't do this because by default it's a full stateless ticket
3539 * with only a dummy session id so there is no reason to cache it,
3541 * - we are doing early_data, in which case we cache so that we can
3543 * - the application has set a remove_session_cb so needs to know about
3544 * session timeout events
3545 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
3547 if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
3548 && (!SSL_IS_TLS13(s)
3550 || (s->max_early_data > 0
3551 && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
3552 || s->session_ctx->remove_session_cb != NULL
3553 || (s->options & SSL_OP_NO_TICKET) != 0))
3554 SSL_CTX_add_session(s->session_ctx, s->session);
3557 * Add the session to the external cache. We do this even in server side
3558 * TLSv1.3 without early data because some applications just want to
3559 * know about the creation of a session and aren't doing a full cache.
3561 if (s->session_ctx->new_session_cb != NULL) {
3562 SSL_SESSION_up_ref(s->session);
3563 if (!s->session_ctx->new_session_cb(s, s->session))
3564 SSL_SESSION_free(s->session);
3568 /* auto flush every 255 connections */
3569 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
3570 TSAN_QUALIFIER int *stat;
3571 if (mode & SSL_SESS_CACHE_CLIENT)
3572 stat = &s->session_ctx->stats.sess_connect_good;
3574 stat = &s->session_ctx->stats.sess_accept_good;
3575 if ((tsan_load(stat) & 0xff) == 0xff)
3576 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
3580 const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
3585 const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
3590 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
3594 if (s->method != meth) {
3595 const SSL_METHOD *sm = s->method;
3596 int (*hf) (SSL *) = s->handshake_func;
3598 if (sm->version == meth->version)
3603 ret = s->method->ssl_new(s);
3606 if (hf == sm->ssl_connect)
3607 s->handshake_func = meth->ssl_connect;
3608 else if (hf == sm->ssl_accept)
3609 s->handshake_func = meth->ssl_accept;
3614 int SSL_get_error(const SSL *s, int i)
3621 return SSL_ERROR_NONE;
3624 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3625 * where we do encode the error
3627 if ((l = ERR_peek_error()) != 0) {
3628 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
3629 return SSL_ERROR_SYSCALL;
3631 return SSL_ERROR_SSL;
3634 if (SSL_want_read(s)) {
3635 bio = SSL_get_rbio(s);
3636 if (BIO_should_read(bio))
3637 return SSL_ERROR_WANT_READ;
3638 else if (BIO_should_write(bio))
3640 * This one doesn't make too much sense ... We never try to write
3641 * to the rbio, and an application program where rbio and wbio
3642 * are separate couldn't even know what it should wait for.
3643 * However if we ever set s->rwstate incorrectly (so that we have
3644 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3645 * wbio *are* the same, this test works around that bug; so it
3646 * might be safer to keep it.
3648 return SSL_ERROR_WANT_WRITE;
3649 else if (BIO_should_io_special(bio)) {
3650 reason = BIO_get_retry_reason(bio);
3651 if (reason == BIO_RR_CONNECT)
3652 return SSL_ERROR_WANT_CONNECT;
3653 else if (reason == BIO_RR_ACCEPT)
3654 return SSL_ERROR_WANT_ACCEPT;
3656 return SSL_ERROR_SYSCALL; /* unknown */
3660 if (SSL_want_write(s)) {
3661 /* Access wbio directly - in order to use the buffered bio if present */
3663 if (BIO_should_write(bio))
3664 return SSL_ERROR_WANT_WRITE;
3665 else if (BIO_should_read(bio))
3667 * See above (SSL_want_read(s) with BIO_should_write(bio))
3669 return SSL_ERROR_WANT_READ;
3670 else if (BIO_should_io_special(bio)) {
3671 reason = BIO_get_retry_reason(bio);
3672 if (reason == BIO_RR_CONNECT)
3673 return SSL_ERROR_WANT_CONNECT;
3674 else if (reason == BIO_RR_ACCEPT)
3675 return SSL_ERROR_WANT_ACCEPT;
3677 return SSL_ERROR_SYSCALL;
3680 if (SSL_want_x509_lookup(s))
3681 return SSL_ERROR_WANT_X509_LOOKUP;
3682 if (SSL_want_async(s))
3683 return SSL_ERROR_WANT_ASYNC;
3684 if (SSL_want_async_job(s))
3685 return SSL_ERROR_WANT_ASYNC_JOB;
3686 if (SSL_want_client_hello_cb(s))
3687 return SSL_ERROR_WANT_CLIENT_HELLO_CB;
3689 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
3690 (s->s3.warn_alert == SSL_AD_CLOSE_NOTIFY))
3691 return SSL_ERROR_ZERO_RETURN;
3693 return SSL_ERROR_SYSCALL;
3696 static int ssl_do_handshake_intern(void *vargs)
3698 struct ssl_async_args *args;
3701 args = (struct ssl_async_args *)vargs;
3704 return s->handshake_func(s);
3707 int SSL_do_handshake(SSL *s)
3711 if (s->handshake_func == NULL) {
3712 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
3716 ossl_statem_check_finish_init(s, -1);
3718 s->method->ssl_renegotiate_check(s, 0);
3720 if (SSL_in_init(s) || SSL_in_before(s)) {
3721 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
3722 struct ssl_async_args args;
3726 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
3728 ret = s->handshake_func(s);
3734 void SSL_set_accept_state(SSL *s)
3738 ossl_statem_clear(s);
3739 s->handshake_func = s->method->ssl_accept;
3743 void SSL_set_connect_state(SSL *s)
3747 ossl_statem_clear(s);
3748 s->handshake_func = s->method->ssl_connect;
3752 int ssl_undefined_function(SSL *s)
3754 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
3758 int ssl_undefined_void_function(void)
3760 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
3761 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
3765 int ssl_undefined_const_function(const SSL *s)
3770 const SSL_METHOD *ssl_bad_method(int ver)
3772 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
3776 const char *ssl_protocol_to_string(int version)
3780 case TLS1_3_VERSION:
3783 case TLS1_2_VERSION:
3786 case TLS1_1_VERSION:
3801 case DTLS1_2_VERSION:
3809 const char *SSL_get_version(const SSL *s)
3811 return ssl_protocol_to_string(s->version);
3814 static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
3816 STACK_OF(X509_NAME) *sk;
3825 if ((sk = sk_X509_NAME_new_null()) == NULL)
3827 for (i = 0; i < sk_X509_NAME_num(src); i++) {
3828 xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
3830 sk_X509_NAME_pop_free(sk, X509_NAME_free);
3833 if (sk_X509_NAME_insert(sk, xn, i) == 0) {
3835 sk_X509_NAME_pop_free(sk, X509_NAME_free);
3844 SSL *SSL_dup(SSL *s)
3849 /* If we're not quiescent, just up_ref! */
3850 if (!SSL_in_init(s) || !SSL_in_before(s)) {
3851 CRYPTO_UP_REF(&s->references, &i, s->lock);
3856 * Otherwise, copy configuration state, and session if set.
3858 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
3861 if (s->session != NULL) {
3863 * Arranges to share the same session via up_ref. This "copies"
3864 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3866 if (!SSL_copy_session_id(ret, s))
3870 * No session has been established yet, so we have to expect that
3871 * s->cert or ret->cert will be changed later -- they should not both
3872 * point to the same object, and thus we can't use
3873 * SSL_copy_session_id.
3875 if (!SSL_set_ssl_method(ret, s->method))
3878 if (s->cert != NULL) {
3879 ssl_cert_free(ret->cert);
3880 ret->cert = ssl_cert_dup(s->cert);
3881 if (ret->cert == NULL)
3885 if (!SSL_set_session_id_context(ret, s->sid_ctx,
3886 (int)s->sid_ctx_length))
3890 if (!ssl_dane_dup(ret, s))
3892 ret->version = s->version;
3893 ret->options = s->options;
3894 ret->mode = s->mode;
3895 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
3896 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
3897 ret->msg_callback = s->msg_callback;
3898 ret->msg_callback_arg = s->msg_callback_arg;
3899 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
3900 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
3901 ret->generate_session_id = s->generate_session_id;
3903 SSL_set_info_callback(ret, SSL_get_info_callback(s));
3905 /* copy app data, a little dangerous perhaps */
3906 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
3909 /* setup rbio, and wbio */
3910 if (s->rbio != NULL) {
3911 if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
3914 if (s->wbio != NULL) {
3915 if (s->wbio != s->rbio) {
3916 if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
3919 BIO_up_ref(ret->rbio);
3920 ret->wbio = ret->rbio;
3924 ret->server = s->server;
3925 if (s->handshake_func) {
3927 SSL_set_accept_state(ret);
3929 SSL_set_connect_state(ret);
3931 ret->shutdown = s->shutdown;
3934 ret->default_passwd_callback = s->default_passwd_callback;
3935 ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata;
3937 X509_VERIFY_PARAM_inherit(ret->param, s->param);
3939 /* dup the cipher_list and cipher_list_by_id stacks */
3940 if (s->cipher_list != NULL) {
3941 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
3944 if (s->cipher_list_by_id != NULL)
3945 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
3949 /* Dup the client_CA list */
3950 if (!dup_ca_names(&ret->ca_names, s->ca_names)
3951 || !dup_ca_names(&ret->client_ca_names, s->client_ca_names))
3961 void ssl_clear_cipher_ctx(SSL *s)
3963 if (s->enc_read_ctx != NULL) {
3964 EVP_CIPHER_CTX_free(s->enc_read_ctx);
3965 s->enc_read_ctx = NULL;
3967 if (s->enc_write_ctx != NULL) {
3968 EVP_CIPHER_CTX_free(s->enc_write_ctx);
3969 s->enc_write_ctx = NULL;
3971 #ifndef OPENSSL_NO_COMP
3972 COMP_CTX_free(s->expand);
3974 COMP_CTX_free(s->compress);
3979 X509 *SSL_get_certificate(const SSL *s)
3981 if (s->cert != NULL)
3982 return s->cert->key->x509;
3987 EVP_PKEY *SSL_get_privatekey(const SSL *s)
3989 if (s->cert != NULL)
3990 return s->cert->key->privatekey;
3995 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
3997 if (ctx->cert != NULL)
3998 return ctx->cert->key->x509;
4003 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
4005 if (ctx->cert != NULL)
4006 return ctx->cert->key->privatekey;
4011 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
4013 if ((s->session != NULL) && (s->session->cipher != NULL))
4014 return s->session->cipher;
4018 const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
4020 return s->s3.tmp.new_cipher;
4023 const COMP_METHOD *SSL_get_current_compression(const SSL *s)
4025 #ifndef OPENSSL_NO_COMP
4026 return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
4032 const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
4034 #ifndef OPENSSL_NO_COMP
4035 return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
4041 int ssl_init_wbio_buffer(SSL *s)
4045 if (s->bbio != NULL) {
4046 /* Already buffered. */
4050 bbio = BIO_new(BIO_f_buffer());
4051 if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) {
4053 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
4057 s->wbio = BIO_push(bbio, s->wbio);
4062 int ssl_free_wbio_buffer(SSL *s)
4064 /* callers ensure s is never null */
4065 if (s->bbio == NULL)
4068 s->wbio = BIO_pop(s->wbio);
4075 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
4077 ctx->quiet_shutdown = mode;
4080 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
4082 return ctx->quiet_shutdown;
4085 void SSL_set_quiet_shutdown(SSL *s, int mode)
4087 s->quiet_shutdown = mode;
4090 int SSL_get_quiet_shutdown(const SSL *s)
4092 return s->quiet_shutdown;
4095 void SSL_set_shutdown(SSL *s, int mode)
4100 int SSL_get_shutdown(const SSL *s)
4105 int SSL_version(const SSL *s)
4110 int SSL_client_version(const SSL *s)
4112 return s->client_version;
4115 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
4120 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
4123 if (ssl->ctx == ctx)
4126 ctx = ssl->session_ctx;
4127 new_cert = ssl_cert_dup(ctx->cert);
4128 if (new_cert == NULL) {
4132 if (!custom_exts_copy_flags(&new_cert->custext, &ssl->cert->custext)) {
4133 ssl_cert_free(new_cert);
4137 ssl_cert_free(ssl->cert);
4138 ssl->cert = new_cert;
4141 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
4142 * so setter APIs must prevent invalid lengths from entering the system.
4144 if (!ossl_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx)))
4148 * If the session ID context matches that of the parent SSL_CTX,
4149 * inherit it from the new SSL_CTX as well. If however the context does
4150 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
4151 * leave it unchanged.
4153 if ((ssl->ctx != NULL) &&
4154 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
4155 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
4156 ssl->sid_ctx_length = ctx->sid_ctx_length;
4157 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
4160 SSL_CTX_up_ref(ctx);
4161 SSL_CTX_free(ssl->ctx); /* decrement reference count */
4167 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
4169 return X509_STORE_set_default_paths(ctx->cert_store);
4172 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
4174 X509_LOOKUP *lookup;
4176 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
4179 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
4181 /* Clear any errors if the default directory does not exist */
4187 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
4189 X509_LOOKUP *lookup;
4191 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
4195 X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
4197 /* Clear any errors if the default file does not exist */
4203 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
4206 return X509_STORE_load_locations(ctx->cert_store, CAfile, CApath);
4209 void SSL_set_info_callback(SSL *ssl,
4210 void (*cb) (const SSL *ssl, int type, int val))
4212 ssl->info_callback = cb;
4216 * One compiler (Diab DCC) doesn't like argument names in returned function
4219 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
4222 return ssl->info_callback;
4225 void SSL_set_verify_result(SSL *ssl, long arg)
4227 ssl->verify_result = arg;
4230 long SSL_get_verify_result(const SSL *ssl)
4232 return ssl->verify_result;
4235 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
4238 return sizeof(ssl->s3.client_random);
4239 if (outlen > sizeof(ssl->s3.client_random))
4240 outlen = sizeof(ssl->s3.client_random);
4241 memcpy(out, ssl->s3.client_random, outlen);
4245 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
4248 return sizeof(ssl->s3.server_random);
4249 if (outlen > sizeof(ssl->s3.server_random))
4250 outlen = sizeof(ssl->s3.server_random);
4251 memcpy(out, ssl->s3.server_random, outlen);
4255 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
4256 unsigned char *out, size_t outlen)
4259 return session->master_key_length;
4260 if (outlen > session->master_key_length)
4261 outlen = session->master_key_length;
4262 memcpy(out, session->master_key, outlen);
4266 int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
4269 if (len > sizeof(sess->master_key))
4272 memcpy(sess->master_key, in, len);
4273 sess->master_key_length = len;
4278 int SSL_set_ex_data(SSL *s, int idx, void *arg)
4280 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
4283 void *SSL_get_ex_data(const SSL *s, int idx)
4285 return CRYPTO_get_ex_data(&s->ex_data, idx);
4288 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
4290 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
4293 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
4295 return CRYPTO_get_ex_data(&s->ex_data, idx);
4298 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
4300 return ctx->cert_store;
4303 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
4305 X509_STORE_free(ctx->cert_store);
4306 ctx->cert_store = store;
4309 void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
4312 X509_STORE_up_ref(store);
4313 SSL_CTX_set_cert_store(ctx, store);
4316 int SSL_want(const SSL *s)
4322 * \brief Set the callback for generating temporary DH keys.
4323 * \param ctx the SSL context.
4324 * \param dh the callback
4327 #ifndef OPENSSL_NO_DH
4328 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
4329 DH *(*dh) (SSL *ssl, int is_export,
4332 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
4335 void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
4338 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
4342 #ifndef OPENSSL_NO_PSK
4343 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
4345 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
4346 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
4349 OPENSSL_free(ctx->cert->psk_identity_hint);
4350 if (identity_hint != NULL) {
4351 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
4352 if (ctx->cert->psk_identity_hint == NULL)
4355 ctx->cert->psk_identity_hint = NULL;
4359 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
4364 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
4365 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
4368 OPENSSL_free(s->cert->psk_identity_hint);
4369 if (identity_hint != NULL) {
4370 s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
4371 if (s->cert->psk_identity_hint == NULL)
4374 s->cert->psk_identity_hint = NULL;
4378 const char *SSL_get_psk_identity_hint(const SSL *s)
4380 if (s == NULL || s->session == NULL)
4382 return s->session->psk_identity_hint;
4385 const char *SSL_get_psk_identity(const SSL *s)
4387 if (s == NULL || s->session == NULL)
4389 return s->session->psk_identity;
4392 void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
4394 s->psk_client_callback = cb;
4397 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
4399 ctx->psk_client_callback = cb;
4402 void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
4404 s->psk_server_callback = cb;
4407 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
4409 ctx->psk_server_callback = cb;
4413 void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
4415 s->psk_find_session_cb = cb;
4418 void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
4419 SSL_psk_find_session_cb_func cb)
4421 ctx->psk_find_session_cb = cb;
4424 void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
4426 s->psk_use_session_cb = cb;
4429 void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
4430 SSL_psk_use_session_cb_func cb)
4432 ctx->psk_use_session_cb = cb;
4435 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
4436 void (*cb) (int write_p, int version,
4437 int content_type, const void *buf,
4438 size_t len, SSL *ssl, void *arg))
4440 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
4443 void SSL_set_msg_callback(SSL *ssl,
4444 void (*cb) (int write_p, int version,
4445 int content_type, const void *buf,
4446 size_t len, SSL *ssl, void *arg))
4448 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
4451 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
4452 int (*cb) (SSL *ssl,
4456 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
4457 (void (*)(void))cb);
4460 void SSL_set_not_resumable_session_callback(SSL *ssl,
4461 int (*cb) (SSL *ssl,
4462 int is_forward_secure))
4464 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
4465 (void (*)(void))cb);
4468 void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
4469 size_t (*cb) (SSL *ssl, int type,
4470 size_t len, void *arg))
4472 ctx->record_padding_cb = cb;
4475 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
4477 ctx->record_padding_arg = arg;
4480 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
4482 return ctx->record_padding_arg;
4485 int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
4487 /* block size of 0 or 1 is basically no padding */
4488 if (block_size == 1)
4489 ctx->block_padding = 0;
4490 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
4491 ctx->block_padding = block_size;
4497 void SSL_set_record_padding_callback(SSL *ssl,
4498 size_t (*cb) (SSL *ssl, int type,
4499 size_t len, void *arg))
4501 ssl->record_padding_cb = cb;
4504 void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
4506 ssl->record_padding_arg = arg;
4509 void *SSL_get_record_padding_callback_arg(const SSL *ssl)
4511 return ssl->record_padding_arg;
4514 int SSL_set_block_padding(SSL *ssl, size_t block_size)
4516 /* block size of 0 or 1 is basically no padding */
4517 if (block_size == 1)
4518 ssl->block_padding = 0;
4519 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
4520 ssl->block_padding = block_size;
4526 int SSL_set_num_tickets(SSL *s, size_t num_tickets)
4528 s->num_tickets = num_tickets;
4533 size_t SSL_get_num_tickets(const SSL *s)
4535 return s->num_tickets;
4538 int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
4540 ctx->num_tickets = num_tickets;
4545 size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
4547 return ctx->num_tickets;
4551 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
4552 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
4553 * If EVP_MD pointer is passed, initializes ctx with this |md|.
4554 * Returns the newly allocated ctx;
4557 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
4559 ssl_clear_hash_ctx(hash);
4560 *hash = EVP_MD_CTX_new();
4561 if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) {
4562 EVP_MD_CTX_free(*hash);
4569 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
4572 EVP_MD_CTX_free(*hash);
4576 /* Retrieve handshake hashes */
4577 int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen,
4580 EVP_MD_CTX *ctx = NULL;
4581 EVP_MD_CTX *hdgst = s->s3.handshake_dgst;
4582 int hashleni = EVP_MD_CTX_size(hdgst);
4585 if (hashleni < 0 || (size_t)hashleni > outlen) {
4586 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH,
4587 ERR_R_INTERNAL_ERROR);
4591 ctx = EVP_MD_CTX_new();
4595 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
4596 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
4597 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH,
4598 ERR_R_INTERNAL_ERROR);
4602 *hashlen = hashleni;
4606 EVP_MD_CTX_free(ctx);
4610 int SSL_session_reused(const SSL *s)
4615 int SSL_is_server(const SSL *s)
4620 #if !OPENSSL_API_1_1_0
4621 void SSL_set_debug(SSL *s, int debug)
4623 /* Old function was do-nothing anyway... */
4629 void SSL_set_security_level(SSL *s, int level)
4631 s->cert->sec_level = level;
4634 int SSL_get_security_level(const SSL *s)
4636 return s->cert->sec_level;
4639 void SSL_set_security_callback(SSL *s,
4640 int (*cb) (const SSL *s, const SSL_CTX *ctx,
4641 int op, int bits, int nid,
4642 void *other, void *ex))
4644 s->cert->sec_cb = cb;
4647 int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
4648 const SSL_CTX *ctx, int op,
4649 int bits, int nid, void *other,
4651 return s->cert->sec_cb;
4654 void SSL_set0_security_ex_data(SSL *s, void *ex)
4656 s->cert->sec_ex = ex;
4659 void *SSL_get0_security_ex_data(const SSL *s)
4661 return s->cert->sec_ex;
4664 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
4666 ctx->cert->sec_level = level;
4669 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
4671 return ctx->cert->sec_level;
4674 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
4675 int (*cb) (const SSL *s, const SSL_CTX *ctx,
4676 int op, int bits, int nid,
4677 void *other, void *ex))
4679 ctx->cert->sec_cb = cb;
4682 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
4688 return ctx->cert->sec_cb;
4691 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
4693 ctx->cert->sec_ex = ex;
4696 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
4698 return ctx->cert->sec_ex;
4702 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4703 * can return unsigned long, instead of the generic long return value from the
4704 * control interface.
4706 unsigned long SSL_CTX_get_options(const SSL_CTX *ctx)
4708 return ctx->options;
4711 unsigned long SSL_get_options(const SSL *s)
4716 unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op)
4718 return ctx->options |= op;
4721 unsigned long SSL_set_options(SSL *s, unsigned long op)
4723 return s->options |= op;
4726 unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op)
4728 return ctx->options &= ~op;
4731 unsigned long SSL_clear_options(SSL *s, unsigned long op)
4733 return s->options &= ~op;
4736 STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
4738 return s->verified_chain;
4741 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
4743 #ifndef OPENSSL_NO_CT
4746 * Moves SCTs from the |src| stack to the |dst| stack.
4747 * The source of each SCT will be set to |origin|.
4748 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4750 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4752 static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
4753 sct_source_t origin)
4759 *dst = sk_SCT_new_null();
4761 SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE);
4766 while ((sct = sk_SCT_pop(src)) != NULL) {
4767 if (SCT_set_source(sct, origin) != 1)
4770 if (sk_SCT_push(*dst, sct) <= 0)
4778 sk_SCT_push(src, sct); /* Put the SCT back */
4783 * Look for data collected during ServerHello and parse if found.
4784 * Returns the number of SCTs extracted.
4786 static int ct_extract_tls_extension_scts(SSL *s)
4788 int scts_extracted = 0;
4790 if (s->ext.scts != NULL) {
4791 const unsigned char *p = s->ext.scts;
4792 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
4794 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
4796 SCT_LIST_free(scts);
4799 return scts_extracted;
4803 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4804 * contains an SCT X509 extension. They will be stored in |s->scts|.
4806 * - The number of SCTs extracted, assuming an OCSP response exists.
4807 * - 0 if no OCSP response exists or it contains no SCTs.
4808 * - A negative integer if an error occurs.
4810 static int ct_extract_ocsp_response_scts(SSL *s)
4812 # ifndef OPENSSL_NO_OCSP
4813 int scts_extracted = 0;
4814 const unsigned char *p;
4815 OCSP_BASICRESP *br = NULL;
4816 OCSP_RESPONSE *rsp = NULL;
4817 STACK_OF(SCT) *scts = NULL;
4820 if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
4823 p = s->ext.ocsp.resp;
4824 rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
4828 br = OCSP_response_get1_basic(rsp);
4832 for (i = 0; i < OCSP_resp_count(br); ++i) {
4833 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
4839 OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
4841 ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
4842 if (scts_extracted < 0)
4846 SCT_LIST_free(scts);
4847 OCSP_BASICRESP_free(br);
4848 OCSP_RESPONSE_free(rsp);
4849 return scts_extracted;
4851 /* Behave as if no OCSP response exists */
4857 * Attempts to extract SCTs from the peer certificate.
4858 * Return the number of SCTs extracted, or a negative integer if an error
4861 static int ct_extract_x509v3_extension_scts(SSL *s)
4863 int scts_extracted = 0;
4864 X509 *cert = s->session != NULL ? s->session->peer : NULL;
4867 STACK_OF(SCT) *scts =
4868 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
4871 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
4873 SCT_LIST_free(scts);
4876 return scts_extracted;
4880 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4881 * response (if it exists) and X509v3 extensions in the certificate.
4882 * Returns NULL if an error occurs.
4884 const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
4886 if (!s->scts_parsed) {
4887 if (ct_extract_tls_extension_scts(s) < 0 ||
4888 ct_extract_ocsp_response_scts(s) < 0 ||
4889 ct_extract_x509v3_extension_scts(s) < 0)
4899 static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx,
4900 const STACK_OF(SCT) *scts, void *unused_arg)
4905 static int ct_strict(const CT_POLICY_EVAL_CTX * ctx,
4906 const STACK_OF(SCT) *scts, void *unused_arg)
4908 int count = scts != NULL ? sk_SCT_num(scts) : 0;
4911 for (i = 0; i < count; ++i) {
4912 SCT *sct = sk_SCT_value(scts, i);
4913 int status = SCT_get_validation_status(sct);
4915 if (status == SCT_VALIDATION_STATUS_VALID)
4918 SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS);
4922 int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
4926 * Since code exists that uses the custom extension handler for CT, look
4927 * for this and throw an error if they have already registered to use CT.
4929 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
4930 TLSEXT_TYPE_signed_certificate_timestamp))
4932 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK,
4933 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
4937 if (callback != NULL) {
4939 * If we are validating CT, then we MUST accept SCTs served via OCSP
4941 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
4945 s->ct_validation_callback = callback;
4946 s->ct_validation_callback_arg = arg;
4951 int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
4952 ssl_ct_validation_cb callback, void *arg)
4955 * Since code exists that uses the custom extension handler for CT, look for
4956 * this and throw an error if they have already registered to use CT.
4958 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
4959 TLSEXT_TYPE_signed_certificate_timestamp))
4961 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK,
4962 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
4966 ctx->ct_validation_callback = callback;
4967 ctx->ct_validation_callback_arg = arg;
4971 int SSL_ct_is_enabled(const SSL *s)
4973 return s->ct_validation_callback != NULL;
4976 int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
4978 return ctx->ct_validation_callback != NULL;
4981 int ssl_validate_ct(SSL *s)
4984 X509 *cert = s->session != NULL ? s->session->peer : NULL;
4986 SSL_DANE *dane = &s->dane;
4987 CT_POLICY_EVAL_CTX *ctx = NULL;
4988 const STACK_OF(SCT) *scts;
4991 * If no callback is set, the peer is anonymous, or its chain is invalid,
4992 * skip SCT validation - just return success. Applications that continue
4993 * handshakes without certificates, with unverified chains, or pinned leaf
4994 * certificates are outside the scope of the WebPKI and CT.
4996 * The above exclusions notwithstanding the vast majority of peers will
4997 * have rather ordinary certificate chains validated by typical
4998 * applications that perform certificate verification and therefore will
4999 * process SCTs when enabled.
5001 if (s->ct_validation_callback == NULL || cert == NULL ||
5002 s->verify_result != X509_V_OK ||
5003 s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
5007 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
5008 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
5010 if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
5011 switch (dane->mtlsa->usage) {
5012 case DANETLS_USAGE_DANE_TA:
5013 case DANETLS_USAGE_DANE_EE:
5018 ctx = CT_POLICY_EVAL_CTX_new();
5020 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_VALIDATE_CT,
5021 ERR_R_MALLOC_FAILURE);
5025 issuer = sk_X509_value(s->verified_chain, 1);
5026 CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
5027 CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
5028 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx, s->ctx->ctlog_store);
5029 CT_POLICY_EVAL_CTX_set_time(
5030 ctx, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s)) * 1000);
5032 scts = SSL_get0_peer_scts(s);
5035 * This function returns success (> 0) only when all the SCTs are valid, 0
5036 * when some are invalid, and < 0 on various internal errors (out of
5037 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
5038 * reason to abort the handshake, that decision is up to the callback.
5039 * Therefore, we error out only in the unexpected case that the return
5040 * value is negative.
5042 * XXX: One might well argue that the return value of this function is an
5043 * unfortunate design choice. Its job is only to determine the validation
5044 * status of each of the provided SCTs. So long as it correctly separates
5045 * the wheat from the chaff it should return success. Failure in this case
5046 * ought to correspond to an inability to carry out its duties.
5048 if (SCT_LIST_validate(scts, ctx) < 0) {
5049 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_SSL_VALIDATE_CT,
5050 SSL_R_SCT_VERIFICATION_FAILED);
5054 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
5056 ret = 0; /* This function returns 0 on failure */
5058 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_SSL_VALIDATE_CT,
5059 SSL_R_CALLBACK_FAILED);
5062 CT_POLICY_EVAL_CTX_free(ctx);
5064 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
5065 * failure return code here. Also the application may wish the complete
5066 * the handshake, and then disconnect cleanly at a higher layer, after
5067 * checking the verification status of the completed connection.
5069 * We therefore force a certificate verification failure which will be
5070 * visible via SSL_get_verify_result() and cached as part of any resumed
5073 * Note: the permissive callback is for information gathering only, always
5074 * returns success, and does not affect verification status. Only the
5075 * strict callback or a custom application-specified callback can trigger
5076 * connection failure or record a verification error.
5079 s->verify_result = X509_V_ERR_NO_VALID_SCTS;
5083 int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
5085 switch (validation_mode) {
5087 SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE);
5089 case SSL_CT_VALIDATION_PERMISSIVE:
5090 return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
5091 case SSL_CT_VALIDATION_STRICT:
5092 return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
5096 int SSL_enable_ct(SSL *s, int validation_mode)
5098 switch (validation_mode) {
5100 SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE);
5102 case SSL_CT_VALIDATION_PERMISSIVE:
5103 return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
5104 case SSL_CT_VALIDATION_STRICT:
5105 return SSL_set_ct_validation_callback(s, ct_strict, NULL);
5109 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
5111 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
5114 int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
5116 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
5119 void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs)
5121 CTLOG_STORE_free(ctx->ctlog_store);
5122 ctx->ctlog_store = logs;
5125 const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
5127 return ctx->ctlog_store;
5130 #endif /* OPENSSL_NO_CT */
5132 void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
5135 c->client_hello_cb = cb;
5136 c->client_hello_cb_arg = arg;
5139 int SSL_client_hello_isv2(SSL *s)
5141 if (s->clienthello == NULL)
5143 return s->clienthello->isv2;
5146 unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
5148 if (s->clienthello == NULL)
5150 return s->clienthello->legacy_version;
5153 size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out)
5155 if (s->clienthello == NULL)
5158 *out = s->clienthello->random;
5159 return SSL3_RANDOM_SIZE;
5162 size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
5164 if (s->clienthello == NULL)
5167 *out = s->clienthello->session_id;
5168 return s->clienthello->session_id_len;
5171 size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
5173 if (s->clienthello == NULL)
5176 *out = PACKET_data(&s->clienthello->ciphersuites);
5177 return PACKET_remaining(&s->clienthello->ciphersuites);
5180 size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
5182 if (s->clienthello == NULL)
5185 *out = s->clienthello->compressions;
5186 return s->clienthello->compressions_len;
5189 int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
5195 if (s->clienthello == NULL || out == NULL || outlen == NULL)
5197 for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) {
5198 ext = s->clienthello->pre_proc_exts + i;
5207 if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL) {
5208 SSLerr(SSL_F_SSL_CLIENT_HELLO_GET1_EXTENSIONS_PRESENT,
5209 ERR_R_MALLOC_FAILURE);
5212 for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) {
5213 ext = s->clienthello->pre_proc_exts + i;
5215 if (ext->received_order >= num)
5217 present[ext->received_order] = ext->type;
5224 OPENSSL_free(present);
5228 int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
5234 if (s->clienthello == NULL)
5236 for (i = 0; i < s->clienthello->pre_proc_exts_len; ++i) {
5237 r = s->clienthello->pre_proc_exts + i;
5238 if (r->present && r->type == type) {
5240 *out = PACKET_data(&r->data);
5242 *outlen = PACKET_remaining(&r->data);
5249 int SSL_free_buffers(SSL *ssl)
5251 RECORD_LAYER *rl = &ssl->rlayer;
5253 if (RECORD_LAYER_read_pending(rl) || RECORD_LAYER_write_pending(rl))
5256 RECORD_LAYER_release(rl);
5260 int SSL_alloc_buffers(SSL *ssl)
5262 return ssl3_setup_buffers(ssl);
5265 void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
5267 ctx->keylog_callback = cb;
5270 SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
5272 return ctx->keylog_callback;
5275 static int nss_keylog_int(const char *prefix,
5277 const uint8_t *parameter_1,
5278 size_t parameter_1_len,
5279 const uint8_t *parameter_2,
5280 size_t parameter_2_len)
5283 char *cursor = NULL;
5288 if (ssl->ctx->keylog_callback == NULL)
5292 * Our output buffer will contain the following strings, rendered with
5293 * space characters in between, terminated by a NULL character: first the
5294 * prefix, then the first parameter, then the second parameter. The
5295 * meaning of each parameter depends on the specific key material being
5296 * logged. Note that the first and second parameters are encoded in
5297 * hexadecimal, so we need a buffer that is twice their lengths.
5299 prefix_len = strlen(prefix);
5300 out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
5301 if ((out = cursor = OPENSSL_malloc(out_len)) == NULL) {
5302 SSLfatal(ssl, SSL_AD_INTERNAL_ERROR, SSL_F_NSS_KEYLOG_INT,
5303 ERR_R_MALLOC_FAILURE);
5307 strcpy(cursor, prefix);
5308 cursor += prefix_len;
5311 for (i = 0; i < parameter_1_len; i++) {
5312 sprintf(cursor, "%02x", parameter_1[i]);
5317 for (i = 0; i < parameter_2_len; i++) {
5318 sprintf(cursor, "%02x", parameter_2[i]);
5323 ssl->ctx->keylog_callback(ssl, (const char *)out);
5324 OPENSSL_clear_free(out, out_len);
5329 int ssl_log_rsa_client_key_exchange(SSL *ssl,
5330 const uint8_t *encrypted_premaster,
5331 size_t encrypted_premaster_len,
5332 const uint8_t *premaster,
5333 size_t premaster_len)
5335 if (encrypted_premaster_len < 8) {
5336 SSLfatal(ssl, SSL_AD_INTERNAL_ERROR,
5337 SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
5341 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
5342 return nss_keylog_int("RSA",
5344 encrypted_premaster,
5350 int ssl_log_secret(SSL *ssl,
5352 const uint8_t *secret,
5355 return nss_keylog_int(label,
5357 ssl->s3.client_random,
5363 #define SSLV2_CIPHER_LEN 3
5365 int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites, int sslv2format)
5369 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
5371 if (PACKET_remaining(cipher_suites) == 0) {
5372 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_SSL_CACHE_CIPHERLIST,
5373 SSL_R_NO_CIPHERS_SPECIFIED);
5377 if (PACKET_remaining(cipher_suites) % n != 0) {
5378 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
5379 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
5383 OPENSSL_free(s->s3.tmp.ciphers_raw);
5384 s->s3.tmp.ciphers_raw = NULL;
5385 s->s3.tmp.ciphers_rawlen = 0;
5388 size_t numciphers = PACKET_remaining(cipher_suites) / n;
5389 PACKET sslv2ciphers = *cipher_suites;
5390 unsigned int leadbyte;
5394 * We store the raw ciphers list in SSLv3+ format so we need to do some
5395 * preprocessing to convert the list first. If there are any SSLv2 only
5396 * ciphersuites with a non-zero leading byte then we are going to
5397 * slightly over allocate because we won't store those. But that isn't a
5400 raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
5401 s->s3.tmp.ciphers_raw = raw;
5403 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
5404 ERR_R_MALLOC_FAILURE);
5407 for (s->s3.tmp.ciphers_rawlen = 0;
5408 PACKET_remaining(&sslv2ciphers) > 0;
5409 raw += TLS_CIPHER_LEN) {
5410 if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
5412 && !PACKET_copy_bytes(&sslv2ciphers, raw,
5415 && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
5416 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
5418 OPENSSL_free(s->s3.tmp.ciphers_raw);
5419 s->s3.tmp.ciphers_raw = NULL;
5420 s->s3.tmp.ciphers_rawlen = 0;
5424 s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN;
5426 } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw,
5427 &s->s3.tmp.ciphers_rawlen)) {
5428 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
5429 ERR_R_INTERNAL_ERROR);
5435 int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
5436 int isv2format, STACK_OF(SSL_CIPHER) **sk,
5437 STACK_OF(SSL_CIPHER) **scsvs)
5441 if (!PACKET_buf_init(&pkt, bytes, len))
5443 return bytes_to_cipher_list(s, &pkt, sk, scsvs, isv2format, 0);
5446 int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites,
5447 STACK_OF(SSL_CIPHER) **skp,
5448 STACK_OF(SSL_CIPHER) **scsvs_out,
5449 int sslv2format, int fatal)
5451 const SSL_CIPHER *c;
5452 STACK_OF(SSL_CIPHER) *sk = NULL;
5453 STACK_OF(SSL_CIPHER) *scsvs = NULL;
5455 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
5456 unsigned char cipher[SSLV2_CIPHER_LEN];
5458 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
5460 if (PACKET_remaining(cipher_suites) == 0) {
5462 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_BYTES_TO_CIPHER_LIST,
5463 SSL_R_NO_CIPHERS_SPECIFIED);
5465 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_NO_CIPHERS_SPECIFIED);
5469 if (PACKET_remaining(cipher_suites) % n != 0) {
5471 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,
5472 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
5474 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST,
5475 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
5479 sk = sk_SSL_CIPHER_new_null();
5480 scsvs = sk_SSL_CIPHER_new_null();
5481 if (sk == NULL || scsvs == NULL) {
5483 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,
5484 ERR_R_MALLOC_FAILURE);
5486 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
5490 while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
5492 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
5493 * first byte set to zero, while true SSLv2 ciphers have a non-zero
5494 * first byte. We don't support any true SSLv2 ciphers, so skip them.
5496 if (sslv2format && cipher[0] != '\0')
5499 /* For SSLv2-compat, ignore leading 0-byte. */
5500 c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
5502 if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
5503 (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
5505 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
5506 SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
5508 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
5513 if (PACKET_remaining(cipher_suites) > 0) {
5515 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,
5518 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_BAD_LENGTH);
5525 sk_SSL_CIPHER_free(sk);
5526 if (scsvs_out != NULL)
5529 sk_SSL_CIPHER_free(scsvs);
5532 sk_SSL_CIPHER_free(sk);
5533 sk_SSL_CIPHER_free(scsvs);
5537 int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
5539 ctx->max_early_data = max_early_data;
5544 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
5546 return ctx->max_early_data;
5549 int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
5551 s->max_early_data = max_early_data;
5556 uint32_t SSL_get_max_early_data(const SSL *s)
5558 return s->max_early_data;
5561 int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
5563 ctx->recv_max_early_data = recv_max_early_data;
5568 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
5570 return ctx->recv_max_early_data;
5573 int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
5575 s->recv_max_early_data = recv_max_early_data;
5580 uint32_t SSL_get_recv_max_early_data(const SSL *s)
5582 return s->recv_max_early_data;
5585 __owur unsigned int ssl_get_max_send_fragment(const SSL *ssl)
5587 /* Return any active Max Fragment Len extension */
5588 if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session))
5589 return GET_MAX_FRAGMENT_LENGTH(ssl->session);
5591 /* return current SSL connection setting */
5592 return ssl->max_send_fragment;
5595 __owur unsigned int ssl_get_split_send_fragment(const SSL *ssl)
5597 /* Return a value regarding an active Max Fragment Len extension */
5598 if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session)
5599 && ssl->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(ssl->session))
5600 return GET_MAX_FRAGMENT_LENGTH(ssl->session);
5602 /* else limit |split_send_fragment| to current |max_send_fragment| */
5603 if (ssl->split_send_fragment > ssl->max_send_fragment)
5604 return ssl->max_send_fragment;
5606 /* return current SSL connection setting */
5607 return ssl->split_send_fragment;
5610 int SSL_stateless(SSL *s)
5614 /* Ensure there is no state left over from a previous invocation */
5620 s->s3.flags |= TLS1_FLAGS_STATELESS;
5621 ret = SSL_accept(s);
5622 s->s3.flags &= ~TLS1_FLAGS_STATELESS;
5624 if (ret > 0 && s->ext.cookieok)
5627 if (s->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(s))
5633 void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
5635 ctx->pha_enabled = val;
5638 void SSL_set_post_handshake_auth(SSL *ssl, int val)
5640 ssl->pha_enabled = val;
5643 int SSL_verify_client_post_handshake(SSL *ssl)
5645 if (!SSL_IS_TLS13(ssl)) {
5646 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_WRONG_SSL_VERSION);
5650 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_NOT_SERVER);
5654 if (!SSL_is_init_finished(ssl)) {
5655 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_STILL_IN_INIT);
5659 switch (ssl->post_handshake_auth) {
5661 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_EXTENSION_NOT_RECEIVED);
5664 case SSL_PHA_EXT_SENT:
5665 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, ERR_R_INTERNAL_ERROR);
5667 case SSL_PHA_EXT_RECEIVED:
5669 case SSL_PHA_REQUEST_PENDING:
5670 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_REQUEST_PENDING);
5672 case SSL_PHA_REQUESTED:
5673 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_REQUEST_SENT);
5677 ssl->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
5679 /* checks verify_mode and algorithm_auth */
5680 if (!send_certificate_request(ssl)) {
5681 ssl->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
5682 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_INVALID_CONFIG);
5686 ossl_statem_set_in_init(ssl, 1);
5690 int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
5691 SSL_CTX_generate_session_ticket_fn gen_cb,
5692 SSL_CTX_decrypt_session_ticket_fn dec_cb,
5695 ctx->generate_ticket_cb = gen_cb;
5696 ctx->decrypt_ticket_cb = dec_cb;
5697 ctx->ticket_cb_data = arg;
5701 void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
5702 SSL_allow_early_data_cb_fn cb,
5705 ctx->allow_early_data_cb = cb;
5706 ctx->allow_early_data_cb_data = arg;
5709 void SSL_set_allow_early_data_cb(SSL *s,
5710 SSL_allow_early_data_cb_fn cb,
5713 s->allow_early_data_cb = cb;
5714 s->allow_early_data_cb_data = arg;