2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 * Copyright 2005 Nokia. All rights reserved.
6 * Licensed under the Apache License 2.0 (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
15 #include <openssl/objects.h>
16 #include <openssl/x509v3.h>
17 #include <openssl/rand.h>
18 #include <openssl/rand_drbg.h>
19 #include <openssl/ocsp.h>
20 #include <openssl/dh.h>
21 #include <openssl/engine.h>
22 #include <openssl/async.h>
23 #include <openssl/ct.h>
24 #include <openssl/trace.h>
25 #include "internal/cryptlib.h"
26 #include "internal/refcount.h"
27 #include "internal/ktls.h"
29 static int ssl_undefined_function_1(SSL *ssl, SSL3_RECORD *r, size_t s, int t)
34 return ssl_undefined_function(ssl);
37 static int ssl_undefined_function_2(SSL *ssl, SSL3_RECORD *r, unsigned char *s,
43 return ssl_undefined_function(ssl);
46 static int ssl_undefined_function_3(SSL *ssl, unsigned char *r,
47 unsigned char *s, size_t t, size_t *u)
53 return ssl_undefined_function(ssl);
56 static int ssl_undefined_function_4(SSL *ssl, int r)
59 return ssl_undefined_function(ssl);
62 static size_t ssl_undefined_function_5(SSL *ssl, const char *r, size_t s,
68 return ssl_undefined_function(ssl);
71 static int ssl_undefined_function_6(int r)
74 return ssl_undefined_function(NULL);
77 static int ssl_undefined_function_7(SSL *ssl, unsigned char *r, size_t s,
78 const char *t, size_t u,
79 const unsigned char *v, size_t w, int x)
88 return ssl_undefined_function(ssl);
91 SSL3_ENC_METHOD ssl3_undef_enc_method = {
92 ssl_undefined_function_1,
93 ssl_undefined_function_2,
94 ssl_undefined_function,
95 ssl_undefined_function_3,
96 ssl_undefined_function_4,
97 ssl_undefined_function_5,
98 NULL, /* client_finished_label */
99 0, /* client_finished_label_len */
100 NULL, /* server_finished_label */
101 0, /* server_finished_label_len */
102 ssl_undefined_function_6,
103 ssl_undefined_function_7,
106 struct ssl_async_args {
110 enum { READFUNC, WRITEFUNC, OTHERFUNC } type;
112 int (*func_read) (SSL *, void *, size_t, size_t *);
113 int (*func_write) (SSL *, const void *, size_t, size_t *);
114 int (*func_other) (SSL *);
118 static const struct {
124 DANETLS_MATCHING_FULL, 0, NID_undef
127 DANETLS_MATCHING_2256, 1, NID_sha256
130 DANETLS_MATCHING_2512, 2, NID_sha512
134 static int dane_ctx_enable(struct dane_ctx_st *dctx)
136 const EVP_MD **mdevp;
138 uint8_t mdmax = DANETLS_MATCHING_LAST;
139 int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */
142 if (dctx->mdevp != NULL)
145 mdevp = OPENSSL_zalloc(n * sizeof(*mdevp));
146 mdord = OPENSSL_zalloc(n * sizeof(*mdord));
148 if (mdord == NULL || mdevp == NULL) {
151 SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE);
155 /* Install default entries */
156 for (i = 0; i < OSSL_NELEM(dane_mds); ++i) {
159 if (dane_mds[i].nid == NID_undef ||
160 (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL)
162 mdevp[dane_mds[i].mtype] = md;
163 mdord[dane_mds[i].mtype] = dane_mds[i].ord;
173 static void dane_ctx_final(struct dane_ctx_st *dctx)
175 OPENSSL_free(dctx->mdevp);
178 OPENSSL_free(dctx->mdord);
183 static void tlsa_free(danetls_record *t)
187 OPENSSL_free(t->data);
188 EVP_PKEY_free(t->spki);
192 static void dane_final(SSL_DANE *dane)
194 sk_danetls_record_pop_free(dane->trecs, tlsa_free);
197 sk_X509_pop_free(dane->certs, X509_free);
200 X509_free(dane->mcert);
208 * dane_copy - Copy dane configuration, sans verification state.
210 static int ssl_dane_dup(SSL *to, SSL *from)
215 if (!DANETLS_ENABLED(&from->dane))
218 num = sk_danetls_record_num(from->dane.trecs);
219 dane_final(&to->dane);
220 to->dane.flags = from->dane.flags;
221 to->dane.dctx = &to->ctx->dane;
222 to->dane.trecs = sk_danetls_record_new_reserve(NULL, num);
224 if (to->dane.trecs == NULL) {
225 SSLerr(SSL_F_SSL_DANE_DUP, ERR_R_MALLOC_FAILURE);
229 for (i = 0; i < num; ++i) {
230 danetls_record *t = sk_danetls_record_value(from->dane.trecs, i);
232 if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype,
233 t->data, t->dlen) <= 0)
239 static int dane_mtype_set(struct dane_ctx_st *dctx,
240 const EVP_MD *md, uint8_t mtype, uint8_t ord)
244 if (mtype == DANETLS_MATCHING_FULL && md != NULL) {
245 SSLerr(SSL_F_DANE_MTYPE_SET, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL);
249 if (mtype > dctx->mdmax) {
250 const EVP_MD **mdevp;
252 int n = ((int)mtype) + 1;
254 mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp));
256 SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE);
261 mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord));
263 SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE);
268 /* Zero-fill any gaps */
269 for (i = dctx->mdmax + 1; i < mtype; ++i) {
277 dctx->mdevp[mtype] = md;
278 /* Coerce ordinal of disabled matching types to 0 */
279 dctx->mdord[mtype] = (md == NULL) ? 0 : ord;
284 static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype)
286 if (mtype > dane->dctx->mdmax)
288 return dane->dctx->mdevp[mtype];
291 static int dane_tlsa_add(SSL_DANE *dane,
294 uint8_t mtype, unsigned const char *data, size_t dlen)
297 const EVP_MD *md = NULL;
298 int ilen = (int)dlen;
302 if (dane->trecs == NULL) {
303 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED);
307 if (ilen < 0 || dlen != (size_t)ilen) {
308 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH);
312 if (usage > DANETLS_USAGE_LAST) {
313 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE);
317 if (selector > DANETLS_SELECTOR_LAST) {
318 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR);
322 if (mtype != DANETLS_MATCHING_FULL) {
323 md = tlsa_md_get(dane, mtype);
325 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE);
330 if (md != NULL && dlen != (size_t)EVP_MD_size(md)) {
331 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH);
335 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA);
339 if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) {
340 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
345 t->selector = selector;
347 t->data = OPENSSL_malloc(dlen);
348 if (t->data == NULL) {
350 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
353 memcpy(t->data, data, dlen);
356 /* Validate and cache full certificate or public key */
357 if (mtype == DANETLS_MATCHING_FULL) {
358 const unsigned char *p = data;
360 EVP_PKEY *pkey = NULL;
363 case DANETLS_SELECTOR_CERT:
364 if (!d2i_X509(&cert, &p, ilen) || p < data ||
365 dlen != (size_t)(p - data)) {
367 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
370 if (X509_get0_pubkey(cert) == NULL) {
372 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
376 if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
382 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
383 * records that contain full certificates of trust-anchors that are
384 * not present in the wire chain. For usage PKIX-TA(0), we augment
385 * the chain with untrusted Full(0) certificates from DNS, in case
386 * they are missing from the chain.
388 if ((dane->certs == NULL &&
389 (dane->certs = sk_X509_new_null()) == NULL) ||
390 !sk_X509_push(dane->certs, cert)) {
391 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
398 case DANETLS_SELECTOR_SPKI:
399 if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data ||
400 dlen != (size_t)(p - data)) {
402 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
407 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
408 * records that contain full bare keys of trust-anchors that are
409 * not present in the wire chain.
411 if (usage == DANETLS_USAGE_DANE_TA)
420 * Find the right insertion point for the new record.
422 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
423 * they can be processed first, as they require no chain building, and no
424 * expiration or hostname checks. Because DANE-EE(3) is numerically
425 * largest, this is accomplished via descending sort by "usage".
427 * We also sort in descending order by matching ordinal to simplify
428 * the implementation of digest agility in the verification code.
430 * The choice of order for the selector is not significant, so we
431 * use the same descending order for consistency.
433 num = sk_danetls_record_num(dane->trecs);
434 for (i = 0; i < num; ++i) {
435 danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
437 if (rec->usage > usage)
439 if (rec->usage < usage)
441 if (rec->selector > selector)
443 if (rec->selector < selector)
445 if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
450 if (!sk_danetls_record_insert(dane->trecs, t, i)) {
452 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
455 dane->umask |= DANETLS_USAGE_BIT(usage);
461 * Return 0 if there is only one version configured and it was disabled
462 * at configure time. Return 1 otherwise.
464 static int ssl_check_allowed_versions(int min_version, int max_version)
466 int minisdtls = 0, maxisdtls = 0;
468 /* Figure out if we're doing DTLS versions or TLS versions */
469 if (min_version == DTLS1_BAD_VER
470 || min_version >> 8 == DTLS1_VERSION_MAJOR)
472 if (max_version == DTLS1_BAD_VER
473 || max_version >> 8 == DTLS1_VERSION_MAJOR)
475 /* A wildcard version of 0 could be DTLS or TLS. */
476 if ((minisdtls && !maxisdtls && max_version != 0)
477 || (maxisdtls && !minisdtls && min_version != 0)) {
478 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
482 if (minisdtls || maxisdtls) {
483 /* Do DTLS version checks. */
484 if (min_version == 0)
485 /* Ignore DTLS1_BAD_VER */
486 min_version = DTLS1_VERSION;
487 if (max_version == 0)
488 max_version = DTLS1_2_VERSION;
489 #ifdef OPENSSL_NO_DTLS1_2
490 if (max_version == DTLS1_2_VERSION)
491 max_version = DTLS1_VERSION;
493 #ifdef OPENSSL_NO_DTLS1
494 if (min_version == DTLS1_VERSION)
495 min_version = DTLS1_2_VERSION;
497 /* Done massaging versions; do the check. */
499 #ifdef OPENSSL_NO_DTLS1
500 || (DTLS_VERSION_GE(min_version, DTLS1_VERSION)
501 && DTLS_VERSION_GE(DTLS1_VERSION, max_version))
503 #ifdef OPENSSL_NO_DTLS1_2
504 || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION)
505 && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version))
510 /* Regular TLS version checks. */
511 if (min_version == 0)
512 min_version = SSL3_VERSION;
513 if (max_version == 0)
514 max_version = TLS1_3_VERSION;
515 #ifdef OPENSSL_NO_TLS1_3
516 if (max_version == TLS1_3_VERSION)
517 max_version = TLS1_2_VERSION;
519 #ifdef OPENSSL_NO_TLS1_2
520 if (max_version == TLS1_2_VERSION)
521 max_version = TLS1_1_VERSION;
523 #ifdef OPENSSL_NO_TLS1_1
524 if (max_version == TLS1_1_VERSION)
525 max_version = TLS1_VERSION;
527 #ifdef OPENSSL_NO_TLS1
528 if (max_version == TLS1_VERSION)
529 max_version = SSL3_VERSION;
531 #ifdef OPENSSL_NO_SSL3
532 if (min_version == SSL3_VERSION)
533 min_version = TLS1_VERSION;
535 #ifdef OPENSSL_NO_TLS1
536 if (min_version == TLS1_VERSION)
537 min_version = TLS1_1_VERSION;
539 #ifdef OPENSSL_NO_TLS1_1
540 if (min_version == TLS1_1_VERSION)
541 min_version = TLS1_2_VERSION;
543 #ifdef OPENSSL_NO_TLS1_2
544 if (min_version == TLS1_2_VERSION)
545 min_version = TLS1_3_VERSION;
547 /* Done massaging versions; do the check. */
549 #ifdef OPENSSL_NO_SSL3
550 || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version)
552 #ifdef OPENSSL_NO_TLS1
553 || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version)
555 #ifdef OPENSSL_NO_TLS1_1
556 || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version)
558 #ifdef OPENSSL_NO_TLS1_2
559 || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version)
561 #ifdef OPENSSL_NO_TLS1_3
562 || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version)
570 static void clear_ciphers(SSL *s)
572 /* clear the current cipher */
573 ssl_clear_cipher_ctx(s);
574 ssl_clear_hash_ctx(&s->read_hash);
575 ssl_clear_hash_ctx(&s->write_hash);
578 int SSL_clear(SSL *s)
580 if (s->method == NULL) {
581 SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED);
585 if (ssl_clear_bad_session(s)) {
586 SSL_SESSION_free(s->session);
589 SSL_SESSION_free(s->psksession);
590 s->psksession = NULL;
591 OPENSSL_free(s->psksession_id);
592 s->psksession_id = NULL;
593 s->psksession_id_len = 0;
594 s->hello_retry_request = 0;
601 if (s->renegotiate) {
602 SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR);
606 ossl_statem_clear(s);
608 s->version = s->method->version;
609 s->client_version = s->version;
610 s->rwstate = SSL_NOTHING;
612 BUF_MEM_free(s->init_buf);
617 s->key_update = SSL_KEY_UPDATE_NONE;
619 EVP_MD_CTX_free(s->pha_dgst);
622 /* Reset DANE verification result state */
625 X509_free(s->dane.mcert);
626 s->dane.mcert = NULL;
627 s->dane.mtlsa = NULL;
629 /* Clear the verification result peername */
630 X509_VERIFY_PARAM_move_peername(s->param, NULL);
633 * Check to see if we were changed into a different method, if so, revert
636 if (s->method != s->ctx->method) {
637 s->method->ssl_free(s);
638 s->method = s->ctx->method;
639 if (!s->method->ssl_new(s))
642 if (!s->method->ssl_clear(s))
646 RECORD_LAYER_clear(&s->rlayer);
651 /** Used to change an SSL_CTXs default SSL method type */
652 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
654 STACK_OF(SSL_CIPHER) *sk;
658 if (!SSL_CTX_set_ciphersuites(ctx, OSSL_default_ciphersuites())) {
659 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
662 sk = ssl_create_cipher_list(ctx->method,
663 ctx->tls13_ciphersuites,
665 &(ctx->cipher_list_by_id),
666 OSSL_default_cipher_list(), ctx->cert);
667 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
668 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
674 SSL *SSL_new(SSL_CTX *ctx)
679 SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
682 if (ctx->method == NULL) {
683 SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
687 s = OPENSSL_zalloc(sizeof(*s));
692 s->lock = CRYPTO_THREAD_lock_new();
693 if (s->lock == NULL) {
699 RECORD_LAYER_init(&s->rlayer, s);
701 s->options = ctx->options;
702 s->dane.flags = ctx->dane.flags;
703 s->min_proto_version = ctx->min_proto_version;
704 s->max_proto_version = ctx->max_proto_version;
706 s->max_cert_list = ctx->max_cert_list;
707 s->max_early_data = ctx->max_early_data;
708 s->recv_max_early_data = ctx->recv_max_early_data;
709 s->num_tickets = ctx->num_tickets;
710 s->pha_enabled = ctx->pha_enabled;
712 /* Shallow copy of the ciphersuites stack */
713 s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
714 if (s->tls13_ciphersuites == NULL)
718 * Earlier library versions used to copy the pointer to the CERT, not
719 * its contents; only when setting new parameters for the per-SSL
720 * copy, ssl_cert_new would be called (and the direct reference to
721 * the per-SSL_CTX settings would be lost, but those still were
722 * indirectly accessed for various purposes, and for that reason they
723 * used to be known as s->ctx->default_cert). Now we don't look at the
724 * SSL_CTX's CERT after having duplicated it once.
726 s->cert = ssl_cert_dup(ctx->cert);
730 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
731 s->msg_callback = ctx->msg_callback;
732 s->msg_callback_arg = ctx->msg_callback_arg;
733 s->verify_mode = ctx->verify_mode;
734 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
735 s->record_padding_cb = ctx->record_padding_cb;
736 s->record_padding_arg = ctx->record_padding_arg;
737 s->block_padding = ctx->block_padding;
738 s->sid_ctx_length = ctx->sid_ctx_length;
739 if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
741 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
742 s->verify_callback = ctx->default_verify_callback;
743 s->generate_session_id = ctx->generate_session_id;
745 s->param = X509_VERIFY_PARAM_new();
746 if (s->param == NULL)
748 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
749 s->quiet_shutdown = ctx->quiet_shutdown;
751 s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
752 s->max_send_fragment = ctx->max_send_fragment;
753 s->split_send_fragment = ctx->split_send_fragment;
754 s->max_pipelines = ctx->max_pipelines;
755 if (s->max_pipelines > 1)
756 RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
757 if (ctx->default_read_buf_len > 0)
758 SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len);
763 s->ext.debug_arg = NULL;
764 s->ext.ticket_expected = 0;
765 s->ext.status_type = ctx->ext.status_type;
766 s->ext.status_expected = 0;
767 s->ext.ocsp.ids = NULL;
768 s->ext.ocsp.exts = NULL;
769 s->ext.ocsp.resp = NULL;
770 s->ext.ocsp.resp_len = 0;
772 s->session_ctx = ctx;
773 #ifndef OPENSSL_NO_EC
774 if (ctx->ext.ecpointformats) {
775 s->ext.ecpointformats =
776 OPENSSL_memdup(ctx->ext.ecpointformats,
777 ctx->ext.ecpointformats_len);
778 if (!s->ext.ecpointformats)
780 s->ext.ecpointformats_len =
781 ctx->ext.ecpointformats_len;
784 if (ctx->ext.supportedgroups) {
785 s->ext.supportedgroups =
786 OPENSSL_memdup(ctx->ext.supportedgroups,
787 ctx->ext.supportedgroups_len
788 * sizeof(*ctx->ext.supportedgroups));
789 if (!s->ext.supportedgroups)
791 s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
794 #ifndef OPENSSL_NO_NEXTPROTONEG
798 if (s->ctx->ext.alpn) {
799 s->ext.alpn = OPENSSL_malloc(s->ctx->ext.alpn_len);
800 if (s->ext.alpn == NULL)
802 memcpy(s->ext.alpn, s->ctx->ext.alpn, s->ctx->ext.alpn_len);
803 s->ext.alpn_len = s->ctx->ext.alpn_len;
806 s->verified_chain = NULL;
807 s->verify_result = X509_V_OK;
809 s->default_passwd_callback = ctx->default_passwd_callback;
810 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
812 s->method = ctx->method;
814 s->key_update = SSL_KEY_UPDATE_NONE;
816 s->allow_early_data_cb = ctx->allow_early_data_cb;
817 s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
819 if (!s->method->ssl_new(s))
822 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
827 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data))
830 #ifndef OPENSSL_NO_PSK
831 s->psk_client_callback = ctx->psk_client_callback;
832 s->psk_server_callback = ctx->psk_server_callback;
834 s->psk_find_session_cb = ctx->psk_find_session_cb;
835 s->psk_use_session_cb = ctx->psk_use_session_cb;
837 s->async_cb = ctx->async_cb;
838 s->async_cb_arg = ctx->async_cb_arg;
842 #ifndef OPENSSL_NO_CT
843 if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback,
844 ctx->ct_validation_callback_arg))
851 SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
855 int SSL_is_dtls(const SSL *s)
857 return SSL_IS_DTLS(s) ? 1 : 0;
860 int SSL_up_ref(SSL *s)
864 if (CRYPTO_UP_REF(&s->references, &i, s->lock) <= 0)
867 REF_PRINT_COUNT("SSL", s);
868 REF_ASSERT_ISNT(i < 2);
869 return ((i > 1) ? 1 : 0);
872 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
873 unsigned int sid_ctx_len)
875 if (sid_ctx_len > sizeof(ctx->sid_ctx)) {
876 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
877 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
880 ctx->sid_ctx_length = sid_ctx_len;
881 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
886 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
887 unsigned int sid_ctx_len)
889 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
890 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
891 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
894 ssl->sid_ctx_length = sid_ctx_len;
895 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
900 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
902 CRYPTO_THREAD_write_lock(ctx->lock);
903 ctx->generate_session_id = cb;
904 CRYPTO_THREAD_unlock(ctx->lock);
908 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
910 CRYPTO_THREAD_write_lock(ssl->lock);
911 ssl->generate_session_id = cb;
912 CRYPTO_THREAD_unlock(ssl->lock);
916 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
920 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
921 * we can "construct" a session to give us the desired check - i.e. to
922 * find if there's a session in the hash table that would conflict with
923 * any new session built out of this id/id_len and the ssl_version in use
928 if (id_len > sizeof(r.session_id))
931 r.ssl_version = ssl->version;
932 r.session_id_length = id_len;
933 memcpy(r.session_id, id, id_len);
935 CRYPTO_THREAD_read_lock(ssl->session_ctx->lock);
936 p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r);
937 CRYPTO_THREAD_unlock(ssl->session_ctx->lock);
941 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
943 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
946 int SSL_set_purpose(SSL *s, int purpose)
948 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
951 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
953 return X509_VERIFY_PARAM_set_trust(s->param, trust);
956 int SSL_set_trust(SSL *s, int trust)
958 return X509_VERIFY_PARAM_set_trust(s->param, trust);
961 int SSL_set1_host(SSL *s, const char *hostname)
963 return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0);
966 int SSL_add1_host(SSL *s, const char *hostname)
968 return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0);
971 void SSL_set_hostflags(SSL *s, unsigned int flags)
973 X509_VERIFY_PARAM_set_hostflags(s->param, flags);
976 const char *SSL_get0_peername(SSL *s)
978 return X509_VERIFY_PARAM_get0_peername(s->param);
981 int SSL_CTX_dane_enable(SSL_CTX *ctx)
983 return dane_ctx_enable(&ctx->dane);
986 unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
988 unsigned long orig = ctx->dane.flags;
990 ctx->dane.flags |= flags;
994 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
996 unsigned long orig = ctx->dane.flags;
998 ctx->dane.flags &= ~flags;
1002 int SSL_dane_enable(SSL *s, const char *basedomain)
1004 SSL_DANE *dane = &s->dane;
1006 if (s->ctx->dane.mdmax == 0) {
1007 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED);
1010 if (dane->trecs != NULL) {
1011 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED);
1016 * Default SNI name. This rejects empty names, while set1_host below
1017 * accepts them and disables host name checks. To avoid side-effects with
1018 * invalid input, set the SNI name first.
1020 if (s->ext.hostname == NULL) {
1021 if (!SSL_set_tlsext_host_name(s, basedomain)) {
1022 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1027 /* Primary RFC6125 reference identifier */
1028 if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) {
1029 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1035 dane->dctx = &s->ctx->dane;
1036 dane->trecs = sk_danetls_record_new_null();
1038 if (dane->trecs == NULL) {
1039 SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE);
1045 unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
1047 unsigned long orig = ssl->dane.flags;
1049 ssl->dane.flags |= flags;
1053 unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
1055 unsigned long orig = ssl->dane.flags;
1057 ssl->dane.flags &= ~flags;
1061 int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
1063 SSL_DANE *dane = &s->dane;
1065 if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK)
1069 *mcert = dane->mcert;
1071 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
1076 int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
1077 uint8_t *mtype, unsigned const char **data, size_t *dlen)
1079 SSL_DANE *dane = &s->dane;
1081 if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK)
1085 *usage = dane->mtlsa->usage;
1087 *selector = dane->mtlsa->selector;
1089 *mtype = dane->mtlsa->mtype;
1091 *data = dane->mtlsa->data;
1093 *dlen = dane->mtlsa->dlen;
1098 SSL_DANE *SSL_get0_dane(SSL *s)
1103 int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
1104 uint8_t mtype, unsigned const char *data, size_t dlen)
1106 return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen);
1109 int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
1112 return dane_mtype_set(&ctx->dane, md, mtype, ord);
1115 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
1117 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
1120 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
1122 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
1125 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
1130 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
1135 void SSL_certs_clear(SSL *s)
1137 ssl_cert_clear_certs(s->cert);
1140 void SSL_free(SSL *s)
1146 CRYPTO_DOWN_REF(&s->references, &i, s->lock);
1147 REF_PRINT_COUNT("SSL", s);
1150 REF_ASSERT_ISNT(i < 0);
1152 X509_VERIFY_PARAM_free(s->param);
1153 dane_final(&s->dane);
1154 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1156 RECORD_LAYER_release(&s->rlayer);
1158 /* Ignore return value */
1159 ssl_free_wbio_buffer(s);
1161 BIO_free_all(s->wbio);
1163 BIO_free_all(s->rbio);
1166 BUF_MEM_free(s->init_buf);
1168 /* add extra stuff */
1169 sk_SSL_CIPHER_free(s->cipher_list);
1170 sk_SSL_CIPHER_free(s->cipher_list_by_id);
1171 sk_SSL_CIPHER_free(s->tls13_ciphersuites);
1172 sk_SSL_CIPHER_free(s->peer_ciphers);
1174 /* Make the next call work :-) */
1175 if (s->session != NULL) {
1176 ssl_clear_bad_session(s);
1177 SSL_SESSION_free(s->session);
1179 SSL_SESSION_free(s->psksession);
1180 OPENSSL_free(s->psksession_id);
1184 ssl_cert_free(s->cert);
1185 /* Free up if allocated */
1187 OPENSSL_free(s->ext.hostname);
1188 SSL_CTX_free(s->session_ctx);
1189 #ifndef OPENSSL_NO_EC
1190 OPENSSL_free(s->ext.ecpointformats);
1191 OPENSSL_free(s->ext.peer_ecpointformats);
1192 OPENSSL_free(s->ext.supportedgroups);
1193 OPENSSL_free(s->ext.peer_supportedgroups);
1194 #endif /* OPENSSL_NO_EC */
1195 sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
1196 #ifndef OPENSSL_NO_OCSP
1197 sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
1199 #ifndef OPENSSL_NO_CT
1200 SCT_LIST_free(s->scts);
1201 OPENSSL_free(s->ext.scts);
1203 OPENSSL_free(s->ext.ocsp.resp);
1204 OPENSSL_free(s->ext.alpn);
1205 OPENSSL_free(s->ext.tls13_cookie);
1206 OPENSSL_free(s->clienthello);
1207 OPENSSL_free(s->pha_context);
1208 EVP_MD_CTX_free(s->pha_dgst);
1210 sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
1211 sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
1213 sk_X509_pop_free(s->verified_chain, X509_free);
1215 if (s->method != NULL)
1216 s->method->ssl_free(s);
1218 SSL_CTX_free(s->ctx);
1220 ASYNC_WAIT_CTX_free(s->waitctx);
1222 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1223 OPENSSL_free(s->ext.npn);
1226 #ifndef OPENSSL_NO_SRTP
1227 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
1230 CRYPTO_THREAD_lock_free(s->lock);
1235 void SSL_set0_rbio(SSL *s, BIO *rbio)
1237 BIO_free_all(s->rbio);
1241 void SSL_set0_wbio(SSL *s, BIO *wbio)
1244 * If the output buffering BIO is still in place, remove it
1246 if (s->bbio != NULL)
1247 s->wbio = BIO_pop(s->wbio);
1249 BIO_free_all(s->wbio);
1252 /* Re-attach |bbio| to the new |wbio|. */
1253 if (s->bbio != NULL)
1254 s->wbio = BIO_push(s->bbio, s->wbio);
1257 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1260 * For historical reasons, this function has many different cases in
1261 * ownership handling.
1264 /* If nothing has changed, do nothing */
1265 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1269 * If the two arguments are equal then one fewer reference is granted by the
1270 * caller than we want to take
1272 if (rbio != NULL && rbio == wbio)
1276 * If only the wbio is changed only adopt one reference.
1278 if (rbio == SSL_get_rbio(s)) {
1279 SSL_set0_wbio(s, wbio);
1283 * There is an asymmetry here for historical reasons. If only the rbio is
1284 * changed AND the rbio and wbio were originally different, then we only
1285 * adopt one reference.
1287 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1288 SSL_set0_rbio(s, rbio);
1292 /* Otherwise, adopt both references. */
1293 SSL_set0_rbio(s, rbio);
1294 SSL_set0_wbio(s, wbio);
1297 BIO *SSL_get_rbio(const SSL *s)
1302 BIO *SSL_get_wbio(const SSL *s)
1304 if (s->bbio != NULL) {
1306 * If |bbio| is active, the true caller-configured BIO is its
1309 return BIO_next(s->bbio);
1314 int SSL_get_fd(const SSL *s)
1316 return SSL_get_rfd(s);
1319 int SSL_get_rfd(const SSL *s)
1324 b = SSL_get_rbio(s);
1325 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1327 BIO_get_fd(r, &ret);
1331 int SSL_get_wfd(const SSL *s)
1336 b = SSL_get_wbio(s);
1337 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1339 BIO_get_fd(r, &ret);
1343 #ifndef OPENSSL_NO_SOCK
1344 int SSL_set_fd(SSL *s, int fd)
1349 bio = BIO_new(BIO_s_socket());
1352 SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
1355 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1356 SSL_set_bio(s, bio, bio);
1357 #ifndef OPENSSL_NO_KTLS
1359 * The new socket is created successfully regardless of ktls_enable.
1360 * ktls_enable doesn't change any functionality of the socket, except
1361 * changing the setsockopt to enable the processing of ktls_start.
1362 * Thus, it is not a problem to call it for non-TLS sockets.
1365 #endif /* OPENSSL_NO_KTLS */
1371 int SSL_set_wfd(SSL *s, int fd)
1373 BIO *rbio = SSL_get_rbio(s);
1375 if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET
1376 || (int)BIO_get_fd(rbio, NULL) != fd) {
1377 BIO *bio = BIO_new(BIO_s_socket());
1380 SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
1383 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1384 SSL_set0_wbio(s, bio);
1385 #ifndef OPENSSL_NO_KTLS
1387 * The new socket is created successfully regardless of ktls_enable.
1388 * ktls_enable doesn't change any functionality of the socket, except
1389 * changing the setsockopt to enable the processing of ktls_start.
1390 * Thus, it is not a problem to call it for non-TLS sockets.
1393 #endif /* OPENSSL_NO_KTLS */
1396 SSL_set0_wbio(s, rbio);
1401 int SSL_set_rfd(SSL *s, int fd)
1403 BIO *wbio = SSL_get_wbio(s);
1405 if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET
1406 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
1407 BIO *bio = BIO_new(BIO_s_socket());
1410 SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
1413 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1414 SSL_set0_rbio(s, bio);
1417 SSL_set0_rbio(s, wbio);
1424 /* return length of latest Finished message we sent, copy to 'buf' */
1425 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
1429 ret = s->s3.tmp.finish_md_len;
1432 memcpy(buf, s->s3.tmp.finish_md, count);
1436 /* return length of latest Finished message we expected, copy to 'buf' */
1437 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
1441 ret = s->s3.tmp.peer_finish_md_len;
1444 memcpy(buf, s->s3.tmp.peer_finish_md, count);
1448 int SSL_get_verify_mode(const SSL *s)
1450 return s->verify_mode;
1453 int SSL_get_verify_depth(const SSL *s)
1455 return X509_VERIFY_PARAM_get_depth(s->param);
1458 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
1459 return s->verify_callback;
1462 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
1464 return ctx->verify_mode;
1467 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
1469 return X509_VERIFY_PARAM_get_depth(ctx->param);
1472 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
1473 return ctx->default_verify_callback;
1476 void SSL_set_verify(SSL *s, int mode,
1477 int (*callback) (int ok, X509_STORE_CTX *ctx))
1479 s->verify_mode = mode;
1480 if (callback != NULL)
1481 s->verify_callback = callback;
1484 void SSL_set_verify_depth(SSL *s, int depth)
1486 X509_VERIFY_PARAM_set_depth(s->param, depth);
1489 void SSL_set_read_ahead(SSL *s, int yes)
1491 RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
1494 int SSL_get_read_ahead(const SSL *s)
1496 return RECORD_LAYER_get_read_ahead(&s->rlayer);
1499 int SSL_pending(const SSL *s)
1501 size_t pending = s->method->ssl_pending(s);
1504 * SSL_pending cannot work properly if read-ahead is enabled
1505 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1506 * impossible to fix since SSL_pending cannot report errors that may be
1507 * observed while scanning the new data. (Note that SSL_pending() is
1508 * often used as a boolean value, so we'd better not return -1.)
1510 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1511 * we just return INT_MAX.
1513 return pending < INT_MAX ? (int)pending : INT_MAX;
1516 int SSL_has_pending(const SSL *s)
1519 * Similar to SSL_pending() but returns a 1 to indicate that we have
1520 * unprocessed data available or 0 otherwise (as opposed to the number of
1521 * bytes available). Unlike SSL_pending() this will take into account
1522 * read_ahead data. A 1 return simply indicates that we have unprocessed
1523 * data. That data may not result in any application data, or we may fail
1524 * to parse the records for some reason.
1526 if (RECORD_LAYER_processed_read_pending(&s->rlayer))
1529 return RECORD_LAYER_read_pending(&s->rlayer);
1532 X509 *SSL_get_peer_certificate(const SSL *s)
1536 if ((s == NULL) || (s->session == NULL))
1539 r = s->session->peer;
1549 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
1553 if ((s == NULL) || (s->session == NULL))
1556 r = s->session->peer_chain;
1559 * If we are a client, cert_chain includes the peer's own certificate; if
1560 * we are a server, it does not.
1567 * Now in theory, since the calling process own 't' it should be safe to
1568 * modify. We need to be able to read f without being hassled
1570 int SSL_copy_session_id(SSL *t, const SSL *f)
1573 /* Do we need to to SSL locking? */
1574 if (!SSL_set_session(t, SSL_get_session(f))) {
1579 * what if we are setup for one protocol version but want to talk another
1581 if (t->method != f->method) {
1582 t->method->ssl_free(t);
1583 t->method = f->method;
1584 if (t->method->ssl_new(t) == 0)
1588 CRYPTO_UP_REF(&f->cert->references, &i, f->cert->lock);
1589 ssl_cert_free(t->cert);
1591 if (!SSL_set_session_id_context(t, f->sid_ctx, (int)f->sid_ctx_length)) {
1598 /* Fix this so it checks all the valid key/cert options */
1599 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
1601 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
1602 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
1605 if (ctx->cert->key->privatekey == NULL) {
1606 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1609 return X509_check_private_key
1610 (ctx->cert->key->x509, ctx->cert->key->privatekey);
1613 /* Fix this function so that it takes an optional type parameter */
1614 int SSL_check_private_key(const SSL *ssl)
1617 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
1620 if (ssl->cert->key->x509 == NULL) {
1621 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
1624 if (ssl->cert->key->privatekey == NULL) {
1625 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1628 return X509_check_private_key(ssl->cert->key->x509,
1629 ssl->cert->key->privatekey);
1632 int SSL_waiting_for_async(SSL *s)
1640 int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
1642 ASYNC_WAIT_CTX *ctx = s->waitctx;
1646 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
1649 int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
1650 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
1652 ASYNC_WAIT_CTX *ctx = s->waitctx;
1656 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
1660 int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback)
1662 ctx->async_cb = callback;
1666 int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg)
1668 ctx->async_cb_arg = arg;
1672 int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback)
1674 s->async_cb = callback;
1678 int SSL_set_async_callback_arg(SSL *s, void *arg)
1680 s->async_cb_arg = arg;
1684 int SSL_get_async_status(SSL *s, int *status)
1686 ASYNC_WAIT_CTX *ctx = s->waitctx;
1690 *status = ASYNC_WAIT_CTX_get_status(ctx);
1694 int SSL_accept(SSL *s)
1696 if (s->handshake_func == NULL) {
1697 /* Not properly initialized yet */
1698 SSL_set_accept_state(s);
1701 return SSL_do_handshake(s);
1704 int SSL_connect(SSL *s)
1706 if (s->handshake_func == NULL) {
1707 /* Not properly initialized yet */
1708 SSL_set_connect_state(s);
1711 return SSL_do_handshake(s);
1714 long SSL_get_default_timeout(const SSL *s)
1716 return s->method->get_timeout();
1719 static int ssl_async_wait_ctx_cb(void *arg)
1721 SSL *s = (SSL *)arg;
1723 return s->async_cb(s, s->async_cb_arg);
1726 static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
1727 int (*func) (void *))
1730 if (s->waitctx == NULL) {
1731 s->waitctx = ASYNC_WAIT_CTX_new();
1732 if (s->waitctx == NULL)
1734 if (s->async_cb != NULL
1735 && !ASYNC_WAIT_CTX_set_callback
1736 (s->waitctx, ssl_async_wait_ctx_cb, s))
1739 switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args,
1740 sizeof(struct ssl_async_args))) {
1742 s->rwstate = SSL_NOTHING;
1743 SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC);
1746 s->rwstate = SSL_ASYNC_PAUSED;
1749 s->rwstate = SSL_ASYNC_NO_JOBS;
1755 s->rwstate = SSL_NOTHING;
1756 SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR);
1757 /* Shouldn't happen */
1762 static int ssl_io_intern(void *vargs)
1764 struct ssl_async_args *args;
1769 args = (struct ssl_async_args *)vargs;
1773 switch (args->type) {
1775 return args->f.func_read(s, buf, num, &s->asyncrw);
1777 return args->f.func_write(s, buf, num, &s->asyncrw);
1779 return args->f.func_other(s);
1784 int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
1786 if (s->handshake_func == NULL) {
1787 SSLerr(SSL_F_SSL_READ_INTERNAL, SSL_R_UNINITIALIZED);
1791 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1792 s->rwstate = SSL_NOTHING;
1796 if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
1797 || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
1798 SSLerr(SSL_F_SSL_READ_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1802 * If we are a client and haven't received the ServerHello etc then we
1805 ossl_statem_check_finish_init(s, 0);
1807 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1808 struct ssl_async_args args;
1814 args.type = READFUNC;
1815 args.f.func_read = s->method->ssl_read;
1817 ret = ssl_start_async_job(s, &args, ssl_io_intern);
1818 *readbytes = s->asyncrw;
1821 return s->method->ssl_read(s, buf, num, readbytes);
1825 int SSL_read(SSL *s, void *buf, int num)
1831 SSLerr(SSL_F_SSL_READ, SSL_R_BAD_LENGTH);
1835 ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
1838 * The cast is safe here because ret should be <= INT_MAX because num is
1842 ret = (int)readbytes;
1847 int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
1849 int ret = ssl_read_internal(s, buf, num, readbytes);
1856 int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
1861 SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1862 return SSL_READ_EARLY_DATA_ERROR;
1865 switch (s->early_data_state) {
1866 case SSL_EARLY_DATA_NONE:
1867 if (!SSL_in_before(s)) {
1868 SSLerr(SSL_F_SSL_READ_EARLY_DATA,
1869 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1870 return SSL_READ_EARLY_DATA_ERROR;
1874 case SSL_EARLY_DATA_ACCEPT_RETRY:
1875 s->early_data_state = SSL_EARLY_DATA_ACCEPTING;
1876 ret = SSL_accept(s);
1879 s->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
1880 return SSL_READ_EARLY_DATA_ERROR;
1884 case SSL_EARLY_DATA_READ_RETRY:
1885 if (s->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
1886 s->early_data_state = SSL_EARLY_DATA_READING;
1887 ret = SSL_read_ex(s, buf, num, readbytes);
1889 * State machine will update early_data_state to
1890 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1893 if (ret > 0 || (ret <= 0 && s->early_data_state
1894 != SSL_EARLY_DATA_FINISHED_READING)) {
1895 s->early_data_state = SSL_EARLY_DATA_READ_RETRY;
1896 return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
1897 : SSL_READ_EARLY_DATA_ERROR;
1900 s->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
1903 return SSL_READ_EARLY_DATA_FINISH;
1906 SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1907 return SSL_READ_EARLY_DATA_ERROR;
1911 int SSL_get_early_data_status(const SSL *s)
1913 return s->ext.early_data;
1916 static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
1918 if (s->handshake_func == NULL) {
1919 SSLerr(SSL_F_SSL_PEEK_INTERNAL, SSL_R_UNINITIALIZED);
1923 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1926 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1927 struct ssl_async_args args;
1933 args.type = READFUNC;
1934 args.f.func_read = s->method->ssl_peek;
1936 ret = ssl_start_async_job(s, &args, ssl_io_intern);
1937 *readbytes = s->asyncrw;
1940 return s->method->ssl_peek(s, buf, num, readbytes);
1944 int SSL_peek(SSL *s, void *buf, int num)
1950 SSLerr(SSL_F_SSL_PEEK, SSL_R_BAD_LENGTH);
1954 ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
1957 * The cast is safe here because ret should be <= INT_MAX because num is
1961 ret = (int)readbytes;
1967 int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
1969 int ret = ssl_peek_internal(s, buf, num, readbytes);
1976 int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written)
1978 if (s->handshake_func == NULL) {
1979 SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_UNINITIALIZED);
1983 if (s->shutdown & SSL_SENT_SHUTDOWN) {
1984 s->rwstate = SSL_NOTHING;
1985 SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_PROTOCOL_IS_SHUTDOWN);
1989 if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
1990 || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
1991 || s->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
1992 SSLerr(SSL_F_SSL_WRITE_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1995 /* If we are a client and haven't sent the Finished we better do that */
1996 ossl_statem_check_finish_init(s, 1);
1998 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2000 struct ssl_async_args args;
2003 args.buf = (void *)buf;
2005 args.type = WRITEFUNC;
2006 args.f.func_write = s->method->ssl_write;
2008 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2009 *written = s->asyncrw;
2012 return s->method->ssl_write(s, buf, num, written);
2016 ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size, int flags)
2020 if (s->handshake_func == NULL) {
2021 SSLerr(SSL_F_SSL_SENDFILE, SSL_R_UNINITIALIZED);
2025 if (s->shutdown & SSL_SENT_SHUTDOWN) {
2026 s->rwstate = SSL_NOTHING;
2027 SSLerr(SSL_F_SSL_SENDFILE, SSL_R_PROTOCOL_IS_SHUTDOWN);
2031 if (!BIO_get_ktls_send(s->wbio)) {
2032 SSLerr(SSL_F_SSL_SENDFILE, SSL_R_UNINITIALIZED);
2036 /* If we have an alert to send, lets send it */
2037 if (s->s3.alert_dispatch) {
2038 ret = (ossl_ssize_t)s->method->ssl_dispatch_alert(s);
2040 /* SSLfatal() already called if appropriate */
2043 /* if it went, fall through and send more stuff */
2046 s->rwstate = SSL_WRITING;
2047 if (BIO_flush(s->wbio) <= 0) {
2048 if (!BIO_should_retry(s->wbio)) {
2049 s->rwstate = SSL_NOTHING;
2052 set_sys_error(EAGAIN);
2058 #ifndef OPENSSL_NO_KTLS
2059 ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags);
2064 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2065 if ((get_last_sys_error() == EAGAIN) ||
2066 (get_last_sys_error() == EINTR) ||
2067 (get_last_sys_error() == EBUSY))
2068 BIO_set_retry_write(s->wbio);
2071 #ifdef OPENSSL_NO_KTLS
2072 SYSerr(SYS_F_SENDFILE, get_last_sys_error());
2074 SSLerr(SSL_F_SSL_SENDFILE, SSL_R_UNINITIALIZED);
2078 s->rwstate = SSL_NOTHING;
2082 int SSL_write(SSL *s, const void *buf, int num)
2088 SSLerr(SSL_F_SSL_WRITE, SSL_R_BAD_LENGTH);
2092 ret = ssl_write_internal(s, buf, (size_t)num, &written);
2095 * The cast is safe here because ret should be <= INT_MAX because num is
2104 int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
2106 int ret = ssl_write_internal(s, buf, num, written);
2113 int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
2115 int ret, early_data_state;
2117 uint32_t partialwrite;
2119 switch (s->early_data_state) {
2120 case SSL_EARLY_DATA_NONE:
2122 || !SSL_in_before(s)
2123 || ((s->session == NULL || s->session->ext.max_early_data == 0)
2124 && (s->psk_use_session_cb == NULL))) {
2125 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA,
2126 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2131 case SSL_EARLY_DATA_CONNECT_RETRY:
2132 s->early_data_state = SSL_EARLY_DATA_CONNECTING;
2133 ret = SSL_connect(s);
2136 s->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
2141 case SSL_EARLY_DATA_WRITE_RETRY:
2142 s->early_data_state = SSL_EARLY_DATA_WRITING;
2144 * We disable partial write for early data because we don't keep track
2145 * of how many bytes we've written between the SSL_write_ex() call and
2146 * the flush if the flush needs to be retried)
2148 partialwrite = s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
2149 s->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
2150 ret = SSL_write_ex(s, buf, num, &writtmp);
2151 s->mode |= partialwrite;
2153 s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2156 s->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
2159 case SSL_EARLY_DATA_WRITE_FLUSH:
2160 /* The buffering BIO is still in place so we need to flush it */
2161 if (statem_flush(s) != 1)
2164 s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2167 case SSL_EARLY_DATA_FINISHED_READING:
2168 case SSL_EARLY_DATA_READ_RETRY:
2169 early_data_state = s->early_data_state;
2170 /* We are a server writing to an unauthenticated client */
2171 s->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
2172 ret = SSL_write_ex(s, buf, num, written);
2173 /* The buffering BIO is still in place */
2175 (void)BIO_flush(s->wbio);
2176 s->early_data_state = early_data_state;
2180 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2185 int SSL_shutdown(SSL *s)
2188 * Note that this function behaves differently from what one might
2189 * expect. Return values are 0 for no success (yet), 1 for success; but
2190 * calling it once is usually not enough, even if blocking I/O is used
2191 * (see ssl3_shutdown).
2194 if (s->handshake_func == NULL) {
2195 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
2199 if (!SSL_in_init(s)) {
2200 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2201 struct ssl_async_args args;
2204 args.type = OTHERFUNC;
2205 args.f.func_other = s->method->ssl_shutdown;
2207 return ssl_start_async_job(s, &args, ssl_io_intern);
2209 return s->method->ssl_shutdown(s);
2212 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT);
2217 int SSL_key_update(SSL *s, int updatetype)
2220 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
2221 * negotiated, and that it is appropriate to call SSL_key_update() instead
2222 * of SSL_renegotiate().
2224 if (!SSL_IS_TLS13(s)) {
2225 SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_WRONG_SSL_VERSION);
2229 if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
2230 && updatetype != SSL_KEY_UPDATE_REQUESTED) {
2231 SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_INVALID_KEY_UPDATE_TYPE);
2235 if (!SSL_is_init_finished(s)) {
2236 SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_STILL_IN_INIT);
2240 ossl_statem_set_in_init(s, 1);
2241 s->key_update = updatetype;
2245 int SSL_get_key_update_type(const SSL *s)
2247 return s->key_update;
2250 int SSL_renegotiate(SSL *s)
2252 if (SSL_IS_TLS13(s)) {
2253 SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_WRONG_SSL_VERSION);
2257 if ((s->options & SSL_OP_NO_RENEGOTIATION)) {
2258 SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_NO_RENEGOTIATION);
2265 return s->method->ssl_renegotiate(s);
2268 int SSL_renegotiate_abbreviated(SSL *s)
2270 if (SSL_IS_TLS13(s)) {
2271 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_WRONG_SSL_VERSION);
2275 if ((s->options & SSL_OP_NO_RENEGOTIATION)) {
2276 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_NO_RENEGOTIATION);
2283 return s->method->ssl_renegotiate(s);
2286 int SSL_renegotiate_pending(const SSL *s)
2289 * becomes true when negotiation is requested; false again once a
2290 * handshake has finished
2292 return (s->renegotiate != 0);
2295 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
2300 case SSL_CTRL_GET_READ_AHEAD:
2301 return RECORD_LAYER_get_read_ahead(&s->rlayer);
2302 case SSL_CTRL_SET_READ_AHEAD:
2303 l = RECORD_LAYER_get_read_ahead(&s->rlayer);
2304 RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
2307 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
2308 s->msg_callback_arg = parg;
2312 return (s->mode |= larg);
2313 case SSL_CTRL_CLEAR_MODE:
2314 return (s->mode &= ~larg);
2315 case SSL_CTRL_GET_MAX_CERT_LIST:
2316 return (long)s->max_cert_list;
2317 case SSL_CTRL_SET_MAX_CERT_LIST:
2320 l = (long)s->max_cert_list;
2321 s->max_cert_list = (size_t)larg;
2323 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2324 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2326 #ifndef OPENSSL_NO_KTLS
2327 if (s->wbio != NULL && BIO_get_ktls_send(s->wbio))
2329 #endif /* OPENSSL_NO_KTLS */
2330 s->max_send_fragment = larg;
2331 if (s->max_send_fragment < s->split_send_fragment)
2332 s->split_send_fragment = s->max_send_fragment;
2334 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2335 if ((size_t)larg > s->max_send_fragment || larg == 0)
2337 s->split_send_fragment = larg;
2339 case SSL_CTRL_SET_MAX_PIPELINES:
2340 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2342 s->max_pipelines = larg;
2344 RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
2346 case SSL_CTRL_GET_RI_SUPPORT:
2347 return s->s3.send_connection_binding;
2348 case SSL_CTRL_CERT_FLAGS:
2349 return (s->cert->cert_flags |= larg);
2350 case SSL_CTRL_CLEAR_CERT_FLAGS:
2351 return (s->cert->cert_flags &= ~larg);
2353 case SSL_CTRL_GET_RAW_CIPHERLIST:
2355 if (s->s3.tmp.ciphers_raw == NULL)
2357 *(unsigned char **)parg = s->s3.tmp.ciphers_raw;
2358 return (int)s->s3.tmp.ciphers_rawlen;
2360 return TLS_CIPHER_LEN;
2362 case SSL_CTRL_GET_EXTMS_SUPPORT:
2363 if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s))
2365 if (s->session->flags & SSL_SESS_FLAG_EXTMS)
2369 case SSL_CTRL_SET_MIN_PROTO_VERSION:
2370 return ssl_check_allowed_versions(larg, s->max_proto_version)
2371 && ssl_set_version_bound(s->ctx->method->version, (int)larg,
2372 &s->min_proto_version);
2373 case SSL_CTRL_GET_MIN_PROTO_VERSION:
2374 return s->min_proto_version;
2375 case SSL_CTRL_SET_MAX_PROTO_VERSION:
2376 return ssl_check_allowed_versions(s->min_proto_version, larg)
2377 && ssl_set_version_bound(s->ctx->method->version, (int)larg,
2378 &s->max_proto_version);
2379 case SSL_CTRL_GET_MAX_PROTO_VERSION:
2380 return s->max_proto_version;
2382 return s->method->ssl_ctrl(s, cmd, larg, parg);
2386 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
2389 case SSL_CTRL_SET_MSG_CALLBACK:
2390 s->msg_callback = (void (*)
2391 (int write_p, int version, int content_type,
2392 const void *buf, size_t len, SSL *ssl,
2397 return s->method->ssl_callback_ctrl(s, cmd, fp);
2401 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
2403 return ctx->sessions;
2406 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
2409 /* For some cases with ctx == NULL perform syntax checks */
2412 #ifndef OPENSSL_NO_EC
2413 case SSL_CTRL_SET_GROUPS_LIST:
2414 return tls1_set_groups_list(NULL, NULL, parg);
2416 case SSL_CTRL_SET_SIGALGS_LIST:
2417 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
2418 return tls1_set_sigalgs_list(NULL, parg, 0);
2425 case SSL_CTRL_GET_READ_AHEAD:
2426 return ctx->read_ahead;
2427 case SSL_CTRL_SET_READ_AHEAD:
2428 l = ctx->read_ahead;
2429 ctx->read_ahead = larg;
2432 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
2433 ctx->msg_callback_arg = parg;
2436 case SSL_CTRL_GET_MAX_CERT_LIST:
2437 return (long)ctx->max_cert_list;
2438 case SSL_CTRL_SET_MAX_CERT_LIST:
2441 l = (long)ctx->max_cert_list;
2442 ctx->max_cert_list = (size_t)larg;
2445 case SSL_CTRL_SET_SESS_CACHE_SIZE:
2448 l = (long)ctx->session_cache_size;
2449 ctx->session_cache_size = (size_t)larg;
2451 case SSL_CTRL_GET_SESS_CACHE_SIZE:
2452 return (long)ctx->session_cache_size;
2453 case SSL_CTRL_SET_SESS_CACHE_MODE:
2454 l = ctx->session_cache_mode;
2455 ctx->session_cache_mode = larg;
2457 case SSL_CTRL_GET_SESS_CACHE_MODE:
2458 return ctx->session_cache_mode;
2460 case SSL_CTRL_SESS_NUMBER:
2461 return lh_SSL_SESSION_num_items(ctx->sessions);
2462 case SSL_CTRL_SESS_CONNECT:
2463 return tsan_load(&ctx->stats.sess_connect);
2464 case SSL_CTRL_SESS_CONNECT_GOOD:
2465 return tsan_load(&ctx->stats.sess_connect_good);
2466 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
2467 return tsan_load(&ctx->stats.sess_connect_renegotiate);
2468 case SSL_CTRL_SESS_ACCEPT:
2469 return tsan_load(&ctx->stats.sess_accept);
2470 case SSL_CTRL_SESS_ACCEPT_GOOD:
2471 return tsan_load(&ctx->stats.sess_accept_good);
2472 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
2473 return tsan_load(&ctx->stats.sess_accept_renegotiate);
2474 case SSL_CTRL_SESS_HIT:
2475 return tsan_load(&ctx->stats.sess_hit);
2476 case SSL_CTRL_SESS_CB_HIT:
2477 return tsan_load(&ctx->stats.sess_cb_hit);
2478 case SSL_CTRL_SESS_MISSES:
2479 return tsan_load(&ctx->stats.sess_miss);
2480 case SSL_CTRL_SESS_TIMEOUTS:
2481 return tsan_load(&ctx->stats.sess_timeout);
2482 case SSL_CTRL_SESS_CACHE_FULL:
2483 return tsan_load(&ctx->stats.sess_cache_full);
2485 return (ctx->mode |= larg);
2486 case SSL_CTRL_CLEAR_MODE:
2487 return (ctx->mode &= ~larg);
2488 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2489 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2491 ctx->max_send_fragment = larg;
2492 if (ctx->max_send_fragment < ctx->split_send_fragment)
2493 ctx->split_send_fragment = ctx->max_send_fragment;
2495 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2496 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
2498 ctx->split_send_fragment = larg;
2500 case SSL_CTRL_SET_MAX_PIPELINES:
2501 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2503 ctx->max_pipelines = larg;
2505 case SSL_CTRL_CERT_FLAGS:
2506 return (ctx->cert->cert_flags |= larg);
2507 case SSL_CTRL_CLEAR_CERT_FLAGS:
2508 return (ctx->cert->cert_flags &= ~larg);
2509 case SSL_CTRL_SET_MIN_PROTO_VERSION:
2510 return ssl_check_allowed_versions(larg, ctx->max_proto_version)
2511 && ssl_set_version_bound(ctx->method->version, (int)larg,
2512 &ctx->min_proto_version);
2513 case SSL_CTRL_GET_MIN_PROTO_VERSION:
2514 return ctx->min_proto_version;
2515 case SSL_CTRL_SET_MAX_PROTO_VERSION:
2516 return ssl_check_allowed_versions(ctx->min_proto_version, larg)
2517 && ssl_set_version_bound(ctx->method->version, (int)larg,
2518 &ctx->max_proto_version);
2519 case SSL_CTRL_GET_MAX_PROTO_VERSION:
2520 return ctx->max_proto_version;
2522 return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
2526 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
2529 case SSL_CTRL_SET_MSG_CALLBACK:
2530 ctx->msg_callback = (void (*)
2531 (int write_p, int version, int content_type,
2532 const void *buf, size_t len, SSL *ssl,
2537 return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
2541 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
2550 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
2551 const SSL_CIPHER *const *bp)
2553 if ((*ap)->id > (*bp)->id)
2555 if ((*ap)->id < (*bp)->id)
2560 /** return a STACK of the ciphers available for the SSL and in order of
2562 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
2565 if (s->cipher_list != NULL) {
2566 return s->cipher_list;
2567 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
2568 return s->ctx->cipher_list;
2574 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
2576 if ((s == NULL) || !s->server)
2578 return s->peer_ciphers;
2581 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
2583 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
2586 ciphers = SSL_get_ciphers(s);
2589 if (!ssl_set_client_disabled(s))
2591 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
2592 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
2593 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
2595 sk = sk_SSL_CIPHER_new_null();
2598 if (!sk_SSL_CIPHER_push(sk, c)) {
2599 sk_SSL_CIPHER_free(sk);
2607 /** return a STACK of the ciphers available for the SSL and in order of
2609 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
2612 if (s->cipher_list_by_id != NULL) {
2613 return s->cipher_list_by_id;
2614 } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
2615 return s->ctx->cipher_list_by_id;
2621 /** The old interface to get the same thing as SSL_get_ciphers() */
2622 const char *SSL_get_cipher_list(const SSL *s, int n)
2624 const SSL_CIPHER *c;
2625 STACK_OF(SSL_CIPHER) *sk;
2629 sk = SSL_get_ciphers(s);
2630 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
2632 c = sk_SSL_CIPHER_value(sk, n);
2638 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2640 STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
2643 return ctx->cipher_list;
2648 * Distinguish between ciphers controlled by set_ciphersuite() and
2649 * set_cipher_list() when counting.
2651 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
2654 const SSL_CIPHER *c;
2658 for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
2659 c = sk_SSL_CIPHER_value(sk, i);
2660 if (c->min_tls >= TLS1_3_VERSION)
2667 /** specify the ciphers to be used by default by the SSL_CTX */
2668 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
2670 STACK_OF(SSL_CIPHER) *sk;
2672 sk = ssl_create_cipher_list(ctx->method, ctx->tls13_ciphersuites,
2673 &ctx->cipher_list, &ctx->cipher_list_by_id, str,
2676 * ssl_create_cipher_list may return an empty stack if it was unable to
2677 * find a cipher matching the given rule string (for example if the rule
2678 * string specifies a cipher which has been disabled). This is not an
2679 * error as far as ssl_create_cipher_list is concerned, and hence
2680 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2684 else if (cipher_list_tls12_num(sk) == 0) {
2685 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
2691 /** specify the ciphers to be used by the SSL */
2692 int SSL_set_cipher_list(SSL *s, const char *str)
2694 STACK_OF(SSL_CIPHER) *sk;
2696 sk = ssl_create_cipher_list(s->ctx->method, s->tls13_ciphersuites,
2697 &s->cipher_list, &s->cipher_list_by_id, str,
2699 /* see comment in SSL_CTX_set_cipher_list */
2702 else if (cipher_list_tls12_num(sk) == 0) {
2703 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
2709 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
2712 STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
2713 const SSL_CIPHER *c;
2717 || s->peer_ciphers == NULL
2722 clntsk = s->peer_ciphers;
2723 srvrsk = SSL_get_ciphers(s);
2724 if (clntsk == NULL || srvrsk == NULL)
2727 if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
2730 for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
2733 c = sk_SSL_CIPHER_value(clntsk, i);
2734 if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
2737 n = strlen(c->name);
2753 /** return a servername extension value if provided in Client Hello, or NULL.
2754 * So far, only host_name types are defined (RFC 3546).
2757 const char *SSL_get_servername(const SSL *s, const int type)
2759 if (type != TLSEXT_NAMETYPE_host_name)
2763 * SNI is not negotiated in pre-TLS-1.3 resumption flows, so fake up an
2764 * SNI value to return if we are resuming/resumed. N.B. that we still
2765 * call the relevant callbacks for such resumption flows, and callbacks
2766 * might error out if there is not a SNI value available.
2769 return s->session->ext.hostname;
2770 return s->ext.hostname;
2773 int SSL_get_servername_type(const SSL *s)
2776 && (!s->ext.hostname ? s->session->
2777 ext.hostname : s->ext.hostname))
2778 return TLSEXT_NAMETYPE_host_name;
2783 * SSL_select_next_proto implements the standard protocol selection. It is
2784 * expected that this function is called from the callback set by
2785 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2786 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2787 * not included in the length. A byte string of length 0 is invalid. No byte
2788 * string may be truncated. The current, but experimental algorithm for
2789 * selecting the protocol is: 1) If the server doesn't support NPN then this
2790 * is indicated to the callback. In this case, the client application has to
2791 * abort the connection or have a default application level protocol. 2) If
2792 * the server supports NPN, but advertises an empty list then the client
2793 * selects the first protocol in its list, but indicates via the API that this
2794 * fallback case was enacted. 3) Otherwise, the client finds the first
2795 * protocol in the server's list that it supports and selects this protocol.
2796 * This is because it's assumed that the server has better information about
2797 * which protocol a client should use. 4) If the client doesn't support any
2798 * of the server's advertised protocols, then this is treated the same as
2799 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2800 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2802 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
2803 const unsigned char *server,
2804 unsigned int server_len,
2805 const unsigned char *client, unsigned int client_len)
2808 const unsigned char *result;
2809 int status = OPENSSL_NPN_UNSUPPORTED;
2812 * For each protocol in server preference order, see if we support it.
2814 for (i = 0; i < server_len;) {
2815 for (j = 0; j < client_len;) {
2816 if (server[i] == client[j] &&
2817 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
2818 /* We found a match */
2819 result = &server[i];
2820 status = OPENSSL_NPN_NEGOTIATED;
2830 /* There's no overlap between our protocols and the server's list. */
2832 status = OPENSSL_NPN_NO_OVERLAP;
2835 *out = (unsigned char *)result + 1;
2836 *outlen = result[0];
2840 #ifndef OPENSSL_NO_NEXTPROTONEG
2842 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2843 * client's requested protocol for this connection and returns 0. If the
2844 * client didn't request any protocol, then *data is set to NULL. Note that
2845 * the client can request any protocol it chooses. The value returned from
2846 * this function need not be a member of the list of supported protocols
2847 * provided by the callback.
2849 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
2856 *len = (unsigned int)s->ext.npn_len;
2861 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2862 * a TLS server needs a list of supported protocols for Next Protocol
2863 * Negotiation. The returned list must be in wire format. The list is
2864 * returned by setting |out| to point to it and |outlen| to its length. This
2865 * memory will not be modified, but one should assume that the SSL* keeps a
2866 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2867 * wishes to advertise. Otherwise, no such extension will be included in the
2870 void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
2871 SSL_CTX_npn_advertised_cb_func cb,
2874 ctx->ext.npn_advertised_cb = cb;
2875 ctx->ext.npn_advertised_cb_arg = arg;
2879 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2880 * client needs to select a protocol from the server's provided list. |out|
2881 * must be set to point to the selected protocol (which may be within |in|).
2882 * The length of the protocol name must be written into |outlen|. The
2883 * server's advertised protocols are provided in |in| and |inlen|. The
2884 * callback can assume that |in| is syntactically valid. The client must
2885 * select a protocol. It is fatal to the connection if this callback returns
2886 * a value other than SSL_TLSEXT_ERR_OK.
2888 void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
2889 SSL_CTX_npn_select_cb_func cb,
2892 ctx->ext.npn_select_cb = cb;
2893 ctx->ext.npn_select_cb_arg = arg;
2898 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2899 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2900 * length-prefixed strings). Returns 0 on success.
2902 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
2903 unsigned int protos_len)
2905 OPENSSL_free(ctx->ext.alpn);
2906 ctx->ext.alpn = OPENSSL_memdup(protos, protos_len);
2907 if (ctx->ext.alpn == NULL) {
2908 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE);
2911 ctx->ext.alpn_len = protos_len;
2917 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2918 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2919 * length-prefixed strings). Returns 0 on success.
2921 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
2922 unsigned int protos_len)
2924 OPENSSL_free(ssl->ext.alpn);
2925 ssl->ext.alpn = OPENSSL_memdup(protos, protos_len);
2926 if (ssl->ext.alpn == NULL) {
2927 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE);
2930 ssl->ext.alpn_len = protos_len;
2936 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2937 * called during ClientHello processing in order to select an ALPN protocol
2938 * from the client's list of offered protocols.
2940 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
2941 SSL_CTX_alpn_select_cb_func cb,
2944 ctx->ext.alpn_select_cb = cb;
2945 ctx->ext.alpn_select_cb_arg = arg;
2949 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
2950 * On return it sets |*data| to point to |*len| bytes of protocol name
2951 * (not including the leading length-prefix byte). If the server didn't
2952 * respond with a negotiated protocol then |*len| will be zero.
2954 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
2957 *data = ssl->s3.alpn_selected;
2961 *len = (unsigned int)ssl->s3.alpn_selected_len;
2964 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
2965 const char *label, size_t llen,
2966 const unsigned char *context, size_t contextlen,
2969 if (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER)
2972 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
2974 contextlen, use_context);
2977 int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
2978 const char *label, size_t llen,
2979 const unsigned char *context,
2982 if (s->version != TLS1_3_VERSION)
2985 return tls13_export_keying_material_early(s, out, olen, label, llen,
2986 context, contextlen);
2989 static unsigned long ssl_session_hash(const SSL_SESSION *a)
2991 const unsigned char *session_id = a->session_id;
2993 unsigned char tmp_storage[4];
2995 if (a->session_id_length < sizeof(tmp_storage)) {
2996 memset(tmp_storage, 0, sizeof(tmp_storage));
2997 memcpy(tmp_storage, a->session_id, a->session_id_length);
2998 session_id = tmp_storage;
3002 ((unsigned long)session_id[0]) |
3003 ((unsigned long)session_id[1] << 8L) |
3004 ((unsigned long)session_id[2] << 16L) |
3005 ((unsigned long)session_id[3] << 24L);
3010 * NB: If this function (or indeed the hash function which uses a sort of
3011 * coarser function than this one) is changed, ensure
3012 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3013 * being able to construct an SSL_SESSION that will collide with any existing
3014 * session with a matching session ID.
3016 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
3018 if (a->ssl_version != b->ssl_version)
3020 if (a->session_id_length != b->session_id_length)
3022 return memcmp(a->session_id, b->session_id, a->session_id_length);
3026 * These wrapper functions should remain rather than redeclaring
3027 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3028 * variable. The reason is that the functions aren't static, they're exposed
3032 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
3034 SSL_CTX *ret = NULL;
3037 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
3041 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
3044 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3045 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
3048 ret = OPENSSL_zalloc(sizeof(*ret));
3053 ret->min_proto_version = 0;
3054 ret->max_proto_version = 0;
3055 ret->mode = SSL_MODE_AUTO_RETRY;
3056 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
3057 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
3058 /* We take the system default. */
3059 ret->session_timeout = meth->get_timeout();
3060 ret->references = 1;
3061 ret->lock = CRYPTO_THREAD_lock_new();
3062 if (ret->lock == NULL) {
3063 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
3067 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
3068 ret->verify_mode = SSL_VERIFY_NONE;
3069 if ((ret->cert = ssl_cert_new()) == NULL)
3072 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
3073 if (ret->sessions == NULL)
3075 ret->cert_store = X509_STORE_new();
3076 if (ret->cert_store == NULL)
3078 #ifndef OPENSSL_NO_CT
3079 ret->ctlog_store = CTLOG_STORE_new();
3080 if (ret->ctlog_store == NULL)
3084 if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites()))
3087 if (!ssl_create_cipher_list(ret->method,
3088 ret->tls13_ciphersuites,
3089 &ret->cipher_list, &ret->cipher_list_by_id,
3090 OSSL_default_cipher_list(), ret->cert)
3091 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
3092 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
3096 ret->param = X509_VERIFY_PARAM_new();
3097 if (ret->param == NULL)
3100 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
3101 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
3104 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
3105 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
3109 if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL)
3112 if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL)
3115 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data))
3118 if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
3121 /* No compression for DTLS */
3122 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
3123 ret->comp_methods = SSL_COMP_get_compression_methods();
3125 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3126 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3128 /* Setup RFC5077 ticket keys */
3129 if ((RAND_bytes(ret->ext.tick_key_name,
3130 sizeof(ret->ext.tick_key_name)) <= 0)
3131 || (RAND_priv_bytes(ret->ext.secure->tick_hmac_key,
3132 sizeof(ret->ext.secure->tick_hmac_key)) <= 0)
3133 || (RAND_priv_bytes(ret->ext.secure->tick_aes_key,
3134 sizeof(ret->ext.secure->tick_aes_key)) <= 0))
3135 ret->options |= SSL_OP_NO_TICKET;
3137 if (RAND_priv_bytes(ret->ext.cookie_hmac_key,
3138 sizeof(ret->ext.cookie_hmac_key)) <= 0)
3141 #ifndef OPENSSL_NO_SRP
3142 if (!SSL_CTX_SRP_CTX_init(ret))
3145 #ifndef OPENSSL_NO_ENGINE
3146 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3147 # define eng_strx(x) #x
3148 # define eng_str(x) eng_strx(x)
3149 /* Use specific client engine automatically... ignore errors */
3152 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3155 ENGINE_load_builtin_engines();
3156 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3158 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
3164 * Default is to connect to non-RI servers. When RI is more widely
3165 * deployed might change this.
3167 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
3169 * Disable compression by default to prevent CRIME. Applications can
3170 * re-enable compression by configuring
3171 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3172 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3173 * middlebox compatibility by default. This may be disabled by default in
3174 * a later OpenSSL version.
3176 ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
3178 ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
3181 * We cannot usefully set a default max_early_data here (which gets
3182 * propagated in SSL_new(), for the following reason: setting the
3183 * SSL field causes tls_construct_stoc_early_data() to tell the
3184 * client that early data will be accepted when constructing a TLS 1.3
3185 * session ticket, and the client will accordingly send us early data
3186 * when using that ticket (if the client has early data to send).
3187 * However, in order for the early data to actually be consumed by
3188 * the application, the application must also have calls to
3189 * SSL_read_early_data(); otherwise we'll just skip past the early data
3190 * and ignore it. So, since the application must add calls to
3191 * SSL_read_early_data(), we also require them to add
3192 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3193 * eliminating the bandwidth-wasting early data in the case described
3196 ret->max_early_data = 0;
3199 * Default recv_max_early_data is a fully loaded single record. Could be
3200 * split across multiple records in practice. We set this differently to
3201 * max_early_data so that, in the default case, we do not advertise any
3202 * support for early_data, but if a client were to send us some (e.g.
3203 * because of an old, stale ticket) then we will tolerate it and skip over
3206 ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
3208 /* By default we send two session tickets automatically in TLSv1.3 */
3209 ret->num_tickets = 2;
3211 ssl_ctx_system_config(ret);
3215 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
3221 int SSL_CTX_up_ref(SSL_CTX *ctx)
3225 if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0)
3228 REF_PRINT_COUNT("SSL_CTX", ctx);
3229 REF_ASSERT_ISNT(i < 2);
3230 return ((i > 1) ? 1 : 0);
3233 void SSL_CTX_free(SSL_CTX *a)
3240 CRYPTO_DOWN_REF(&a->references, &i, a->lock);
3241 REF_PRINT_COUNT("SSL_CTX", a);
3244 REF_ASSERT_ISNT(i < 0);
3246 X509_VERIFY_PARAM_free(a->param);
3247 dane_ctx_final(&a->dane);
3250 * Free internal session cache. However: the remove_cb() may reference
3251 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3252 * after the sessions were flushed.
3253 * As the ex_data handling routines might also touch the session cache,
3254 * the most secure solution seems to be: empty (flush) the cache, then
3255 * free ex_data, then finally free the cache.
3256 * (See ticket [openssl.org #212].)
3258 if (a->sessions != NULL)
3259 SSL_CTX_flush_sessions(a, 0);
3261 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
3262 lh_SSL_SESSION_free(a->sessions);
3263 X509_STORE_free(a->cert_store);
3264 #ifndef OPENSSL_NO_CT
3265 CTLOG_STORE_free(a->ctlog_store);
3267 sk_SSL_CIPHER_free(a->cipher_list);
3268 sk_SSL_CIPHER_free(a->cipher_list_by_id);
3269 sk_SSL_CIPHER_free(a->tls13_ciphersuites);
3270 ssl_cert_free(a->cert);
3271 sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
3272 sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
3273 sk_X509_pop_free(a->extra_certs, X509_free);
3274 a->comp_methods = NULL;
3275 #ifndef OPENSSL_NO_SRTP
3276 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
3278 #ifndef OPENSSL_NO_SRP
3279 SSL_CTX_SRP_CTX_free(a);
3281 #ifndef OPENSSL_NO_ENGINE
3282 ENGINE_finish(a->client_cert_engine);
3285 #ifndef OPENSSL_NO_EC
3286 OPENSSL_free(a->ext.ecpointformats);
3287 OPENSSL_free(a->ext.supportedgroups);
3289 OPENSSL_free(a->ext.alpn);
3290 OPENSSL_secure_free(a->ext.secure);
3292 CRYPTO_THREAD_lock_free(a->lock);
3297 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
3299 ctx->default_passwd_callback = cb;
3302 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
3304 ctx->default_passwd_callback_userdata = u;
3307 pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
3309 return ctx->default_passwd_callback;
3312 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
3314 return ctx->default_passwd_callback_userdata;
3317 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
3319 s->default_passwd_callback = cb;
3322 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
3324 s->default_passwd_callback_userdata = u;
3327 pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
3329 return s->default_passwd_callback;
3332 void *SSL_get_default_passwd_cb_userdata(SSL *s)
3334 return s->default_passwd_callback_userdata;
3337 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
3338 int (*cb) (X509_STORE_CTX *, void *),
3341 ctx->app_verify_callback = cb;
3342 ctx->app_verify_arg = arg;
3345 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
3346 int (*cb) (int, X509_STORE_CTX *))
3348 ctx->verify_mode = mode;
3349 ctx->default_verify_callback = cb;
3352 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
3354 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
3357 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
3359 ssl_cert_set_cert_cb(c->cert, cb, arg);
3362 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
3364 ssl_cert_set_cert_cb(s->cert, cb, arg);
3367 void ssl_set_masks(SSL *s)
3370 uint32_t *pvalid = s->s3.tmp.valid_flags;
3371 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
3372 unsigned long mask_k, mask_a;
3373 #ifndef OPENSSL_NO_EC
3374 int have_ecc_cert, ecdsa_ok;
3379 #ifndef OPENSSL_NO_DH
3380 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
3385 rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
3386 rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
3387 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
3388 #ifndef OPENSSL_NO_EC
3389 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
3394 OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
3395 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
3397 #ifndef OPENSSL_NO_GOST
3398 if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
3399 mask_k |= SSL_kGOST;
3400 mask_a |= SSL_aGOST12;
3402 if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
3403 mask_k |= SSL_kGOST;
3404 mask_a |= SSL_aGOST12;
3406 if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
3407 mask_k |= SSL_kGOST;
3408 mask_a |= SSL_aGOST01;
3419 * If we only have an RSA-PSS certificate allow RSA authentication
3420 * if TLS 1.2 and peer supports it.
3423 if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
3424 && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
3425 && TLS1_get_version(s) == TLS1_2_VERSION))
3432 mask_a |= SSL_aNULL;
3435 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
3436 * depending on the key usage extension.
3438 #ifndef OPENSSL_NO_EC
3439 if (have_ecc_cert) {
3441 ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
3442 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
3443 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
3446 mask_a |= SSL_aECDSA;
3448 /* Allow Ed25519 for TLS 1.2 if peer supports it */
3449 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
3450 && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
3451 && TLS1_get_version(s) == TLS1_2_VERSION)
3452 mask_a |= SSL_aECDSA;
3454 /* Allow Ed448 for TLS 1.2 if peer supports it */
3455 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
3456 && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
3457 && TLS1_get_version(s) == TLS1_2_VERSION)
3458 mask_a |= SSL_aECDSA;
3461 #ifndef OPENSSL_NO_EC
3462 mask_k |= SSL_kECDHE;
3465 #ifndef OPENSSL_NO_PSK
3468 if (mask_k & SSL_kRSA)
3469 mask_k |= SSL_kRSAPSK;
3470 if (mask_k & SSL_kDHE)
3471 mask_k |= SSL_kDHEPSK;
3472 if (mask_k & SSL_kECDHE)
3473 mask_k |= SSL_kECDHEPSK;
3476 s->s3.tmp.mask_k = mask_k;
3477 s->s3.tmp.mask_a = mask_a;
3480 #ifndef OPENSSL_NO_EC
3482 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
3484 if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
3485 /* key usage, if present, must allow signing */
3486 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
3487 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
3488 SSL_R_ECC_CERT_NOT_FOR_SIGNING);
3492 return 1; /* all checks are ok */
3497 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
3498 size_t *serverinfo_length)
3500 CERT_PKEY *cpk = s->s3.tmp.cert;
3501 *serverinfo_length = 0;
3503 if (cpk == NULL || cpk->serverinfo == NULL)
3506 *serverinfo = cpk->serverinfo;
3507 *serverinfo_length = cpk->serverinfo_length;
3511 void ssl_update_cache(SSL *s, int mode)
3516 * If the session_id_length is 0, we are not supposed to cache it, and it
3517 * would be rather hard to do anyway :-)
3519 if (s->session->session_id_length == 0)
3523 * If sid_ctx_length is 0 there is no specific application context
3524 * associated with this session, so when we try to resume it and
3525 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
3526 * indication that this is actually a session for the proper application
3527 * context, and the *handshake* will fail, not just the resumption attempt.
3528 * Do not cache (on the server) these sessions that are not resumable
3529 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
3531 if (s->server && s->session->sid_ctx_length == 0
3532 && (s->verify_mode & SSL_VERIFY_PEER) != 0)
3535 i = s->session_ctx->session_cache_mode;
3537 && (!s->hit || SSL_IS_TLS13(s))) {
3539 * Add the session to the internal cache. In server side TLSv1.3 we
3540 * normally don't do this because by default it's a full stateless ticket
3541 * with only a dummy session id so there is no reason to cache it,
3543 * - we are doing early_data, in which case we cache so that we can
3545 * - the application has set a remove_session_cb so needs to know about
3546 * session timeout events
3547 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
3549 if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
3550 && (!SSL_IS_TLS13(s)
3552 || (s->max_early_data > 0
3553 && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
3554 || s->session_ctx->remove_session_cb != NULL
3555 || (s->options & SSL_OP_NO_TICKET) != 0))
3556 SSL_CTX_add_session(s->session_ctx, s->session);
3559 * Add the session to the external cache. We do this even in server side
3560 * TLSv1.3 without early data because some applications just want to
3561 * know about the creation of a session and aren't doing a full cache.
3563 if (s->session_ctx->new_session_cb != NULL) {
3564 SSL_SESSION_up_ref(s->session);
3565 if (!s->session_ctx->new_session_cb(s, s->session))
3566 SSL_SESSION_free(s->session);
3570 /* auto flush every 255 connections */
3571 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
3572 TSAN_QUALIFIER int *stat;
3573 if (mode & SSL_SESS_CACHE_CLIENT)
3574 stat = &s->session_ctx->stats.sess_connect_good;
3576 stat = &s->session_ctx->stats.sess_accept_good;
3577 if ((tsan_load(stat) & 0xff) == 0xff)
3578 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
3582 const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
3587 const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
3592 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
3596 if (s->method != meth) {
3597 const SSL_METHOD *sm = s->method;
3598 int (*hf) (SSL *) = s->handshake_func;
3600 if (sm->version == meth->version)
3605 ret = s->method->ssl_new(s);
3608 if (hf == sm->ssl_connect)
3609 s->handshake_func = meth->ssl_connect;
3610 else if (hf == sm->ssl_accept)
3611 s->handshake_func = meth->ssl_accept;
3616 int SSL_get_error(const SSL *s, int i)
3623 return SSL_ERROR_NONE;
3626 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3627 * where we do encode the error
3629 if ((l = ERR_peek_error()) != 0) {
3630 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
3631 return SSL_ERROR_SYSCALL;
3633 return SSL_ERROR_SSL;
3636 if (SSL_want_read(s)) {
3637 bio = SSL_get_rbio(s);
3638 if (BIO_should_read(bio))
3639 return SSL_ERROR_WANT_READ;
3640 else if (BIO_should_write(bio))
3642 * This one doesn't make too much sense ... We never try to write
3643 * to the rbio, and an application program where rbio and wbio
3644 * are separate couldn't even know what it should wait for.
3645 * However if we ever set s->rwstate incorrectly (so that we have
3646 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3647 * wbio *are* the same, this test works around that bug; so it
3648 * might be safer to keep it.
3650 return SSL_ERROR_WANT_WRITE;
3651 else if (BIO_should_io_special(bio)) {
3652 reason = BIO_get_retry_reason(bio);
3653 if (reason == BIO_RR_CONNECT)
3654 return SSL_ERROR_WANT_CONNECT;
3655 else if (reason == BIO_RR_ACCEPT)
3656 return SSL_ERROR_WANT_ACCEPT;
3658 return SSL_ERROR_SYSCALL; /* unknown */
3662 if (SSL_want_write(s)) {
3663 /* Access wbio directly - in order to use the buffered bio if present */
3665 if (BIO_should_write(bio))
3666 return SSL_ERROR_WANT_WRITE;
3667 else if (BIO_should_read(bio))
3669 * See above (SSL_want_read(s) with BIO_should_write(bio))
3671 return SSL_ERROR_WANT_READ;
3672 else if (BIO_should_io_special(bio)) {
3673 reason = BIO_get_retry_reason(bio);
3674 if (reason == BIO_RR_CONNECT)
3675 return SSL_ERROR_WANT_CONNECT;
3676 else if (reason == BIO_RR_ACCEPT)
3677 return SSL_ERROR_WANT_ACCEPT;
3679 return SSL_ERROR_SYSCALL;
3682 if (SSL_want_x509_lookup(s))
3683 return SSL_ERROR_WANT_X509_LOOKUP;
3684 if (SSL_want_async(s))
3685 return SSL_ERROR_WANT_ASYNC;
3686 if (SSL_want_async_job(s))
3687 return SSL_ERROR_WANT_ASYNC_JOB;
3688 if (SSL_want_client_hello_cb(s))
3689 return SSL_ERROR_WANT_CLIENT_HELLO_CB;
3691 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
3692 (s->s3.warn_alert == SSL_AD_CLOSE_NOTIFY))
3693 return SSL_ERROR_ZERO_RETURN;
3695 return SSL_ERROR_SYSCALL;
3698 static int ssl_do_handshake_intern(void *vargs)
3700 struct ssl_async_args *args;
3703 args = (struct ssl_async_args *)vargs;
3706 return s->handshake_func(s);
3709 int SSL_do_handshake(SSL *s)
3713 if (s->handshake_func == NULL) {
3714 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
3718 ossl_statem_check_finish_init(s, -1);
3720 s->method->ssl_renegotiate_check(s, 0);
3722 if (SSL_in_init(s) || SSL_in_before(s)) {
3723 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
3724 struct ssl_async_args args;
3728 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
3730 ret = s->handshake_func(s);
3736 void SSL_set_accept_state(SSL *s)
3740 ossl_statem_clear(s);
3741 s->handshake_func = s->method->ssl_accept;
3745 void SSL_set_connect_state(SSL *s)
3749 ossl_statem_clear(s);
3750 s->handshake_func = s->method->ssl_connect;
3754 int ssl_undefined_function(SSL *s)
3756 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
3760 int ssl_undefined_void_function(void)
3762 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
3763 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
3767 int ssl_undefined_const_function(const SSL *s)
3772 const SSL_METHOD *ssl_bad_method(int ver)
3774 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
3778 const char *ssl_protocol_to_string(int version)
3782 case TLS1_3_VERSION:
3785 case TLS1_2_VERSION:
3788 case TLS1_1_VERSION:
3803 case DTLS1_2_VERSION:
3811 const char *SSL_get_version(const SSL *s)
3813 return ssl_protocol_to_string(s->version);
3816 static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
3818 STACK_OF(X509_NAME) *sk;
3827 if ((sk = sk_X509_NAME_new_null()) == NULL)
3829 for (i = 0; i < sk_X509_NAME_num(src); i++) {
3830 xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
3832 sk_X509_NAME_pop_free(sk, X509_NAME_free);
3835 if (sk_X509_NAME_insert(sk, xn, i) == 0) {
3837 sk_X509_NAME_pop_free(sk, X509_NAME_free);
3846 SSL *SSL_dup(SSL *s)
3851 /* If we're not quiescent, just up_ref! */
3852 if (!SSL_in_init(s) || !SSL_in_before(s)) {
3853 CRYPTO_UP_REF(&s->references, &i, s->lock);
3858 * Otherwise, copy configuration state, and session if set.
3860 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
3863 if (s->session != NULL) {
3865 * Arranges to share the same session via up_ref. This "copies"
3866 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3868 if (!SSL_copy_session_id(ret, s))
3872 * No session has been established yet, so we have to expect that
3873 * s->cert or ret->cert will be changed later -- they should not both
3874 * point to the same object, and thus we can't use
3875 * SSL_copy_session_id.
3877 if (!SSL_set_ssl_method(ret, s->method))
3880 if (s->cert != NULL) {
3881 ssl_cert_free(ret->cert);
3882 ret->cert = ssl_cert_dup(s->cert);
3883 if (ret->cert == NULL)
3887 if (!SSL_set_session_id_context(ret, s->sid_ctx,
3888 (int)s->sid_ctx_length))
3892 if (!ssl_dane_dup(ret, s))
3894 ret->version = s->version;
3895 ret->options = s->options;
3896 ret->mode = s->mode;
3897 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
3898 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
3899 ret->msg_callback = s->msg_callback;
3900 ret->msg_callback_arg = s->msg_callback_arg;
3901 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
3902 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
3903 ret->generate_session_id = s->generate_session_id;
3905 SSL_set_info_callback(ret, SSL_get_info_callback(s));
3907 /* copy app data, a little dangerous perhaps */
3908 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
3911 /* setup rbio, and wbio */
3912 if (s->rbio != NULL) {
3913 if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
3916 if (s->wbio != NULL) {
3917 if (s->wbio != s->rbio) {
3918 if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
3921 BIO_up_ref(ret->rbio);
3922 ret->wbio = ret->rbio;
3926 ret->server = s->server;
3927 if (s->handshake_func) {
3929 SSL_set_accept_state(ret);
3931 SSL_set_connect_state(ret);
3933 ret->shutdown = s->shutdown;
3936 ret->default_passwd_callback = s->default_passwd_callback;
3937 ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata;
3939 X509_VERIFY_PARAM_inherit(ret->param, s->param);
3941 /* dup the cipher_list and cipher_list_by_id stacks */
3942 if (s->cipher_list != NULL) {
3943 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
3946 if (s->cipher_list_by_id != NULL)
3947 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
3951 /* Dup the client_CA list */
3952 if (!dup_ca_names(&ret->ca_names, s->ca_names)
3953 || !dup_ca_names(&ret->client_ca_names, s->client_ca_names))
3963 void ssl_clear_cipher_ctx(SSL *s)
3965 if (s->enc_read_ctx != NULL) {
3966 EVP_CIPHER_CTX_free(s->enc_read_ctx);
3967 s->enc_read_ctx = NULL;
3969 if (s->enc_write_ctx != NULL) {
3970 EVP_CIPHER_CTX_free(s->enc_write_ctx);
3971 s->enc_write_ctx = NULL;
3973 #ifndef OPENSSL_NO_COMP
3974 COMP_CTX_free(s->expand);
3976 COMP_CTX_free(s->compress);
3981 X509 *SSL_get_certificate(const SSL *s)
3983 if (s->cert != NULL)
3984 return s->cert->key->x509;
3989 EVP_PKEY *SSL_get_privatekey(const SSL *s)
3991 if (s->cert != NULL)
3992 return s->cert->key->privatekey;
3997 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
3999 if (ctx->cert != NULL)
4000 return ctx->cert->key->x509;
4005 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
4007 if (ctx->cert != NULL)
4008 return ctx->cert->key->privatekey;
4013 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
4015 if ((s->session != NULL) && (s->session->cipher != NULL))
4016 return s->session->cipher;
4020 const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
4022 return s->s3.tmp.new_cipher;
4025 const COMP_METHOD *SSL_get_current_compression(const SSL *s)
4027 #ifndef OPENSSL_NO_COMP
4028 return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
4034 const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
4036 #ifndef OPENSSL_NO_COMP
4037 return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
4043 int ssl_init_wbio_buffer(SSL *s)
4047 if (s->bbio != NULL) {
4048 /* Already buffered. */
4052 bbio = BIO_new(BIO_f_buffer());
4053 if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) {
4055 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
4059 s->wbio = BIO_push(bbio, s->wbio);
4064 int ssl_free_wbio_buffer(SSL *s)
4066 /* callers ensure s is never null */
4067 if (s->bbio == NULL)
4070 s->wbio = BIO_pop(s->wbio);
4077 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
4079 ctx->quiet_shutdown = mode;
4082 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
4084 return ctx->quiet_shutdown;
4087 void SSL_set_quiet_shutdown(SSL *s, int mode)
4089 s->quiet_shutdown = mode;
4092 int SSL_get_quiet_shutdown(const SSL *s)
4094 return s->quiet_shutdown;
4097 void SSL_set_shutdown(SSL *s, int mode)
4102 int SSL_get_shutdown(const SSL *s)
4107 int SSL_version(const SSL *s)
4112 int SSL_client_version(const SSL *s)
4114 return s->client_version;
4117 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
4122 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
4125 if (ssl->ctx == ctx)
4128 ctx = ssl->session_ctx;
4129 new_cert = ssl_cert_dup(ctx->cert);
4130 if (new_cert == NULL) {
4134 if (!custom_exts_copy_flags(&new_cert->custext, &ssl->cert->custext)) {
4135 ssl_cert_free(new_cert);
4139 ssl_cert_free(ssl->cert);
4140 ssl->cert = new_cert;
4143 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
4144 * so setter APIs must prevent invalid lengths from entering the system.
4146 if (!ossl_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx)))
4150 * If the session ID context matches that of the parent SSL_CTX,
4151 * inherit it from the new SSL_CTX as well. If however the context does
4152 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
4153 * leave it unchanged.
4155 if ((ssl->ctx != NULL) &&
4156 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
4157 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
4158 ssl->sid_ctx_length = ctx->sid_ctx_length;
4159 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
4162 SSL_CTX_up_ref(ctx);
4163 SSL_CTX_free(ssl->ctx); /* decrement reference count */
4169 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
4171 return X509_STORE_set_default_paths(ctx->cert_store);
4174 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
4176 X509_LOOKUP *lookup;
4178 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
4181 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
4183 /* Clear any errors if the default directory does not exist */
4189 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
4191 X509_LOOKUP *lookup;
4193 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
4197 X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
4199 /* Clear any errors if the default file does not exist */
4205 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
4208 return X509_STORE_load_locations(ctx->cert_store, CAfile, CApath);
4211 void SSL_set_info_callback(SSL *ssl,
4212 void (*cb) (const SSL *ssl, int type, int val))
4214 ssl->info_callback = cb;
4218 * One compiler (Diab DCC) doesn't like argument names in returned function
4221 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
4224 return ssl->info_callback;
4227 void SSL_set_verify_result(SSL *ssl, long arg)
4229 ssl->verify_result = arg;
4232 long SSL_get_verify_result(const SSL *ssl)
4234 return ssl->verify_result;
4237 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
4240 return sizeof(ssl->s3.client_random);
4241 if (outlen > sizeof(ssl->s3.client_random))
4242 outlen = sizeof(ssl->s3.client_random);
4243 memcpy(out, ssl->s3.client_random, outlen);
4247 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
4250 return sizeof(ssl->s3.server_random);
4251 if (outlen > sizeof(ssl->s3.server_random))
4252 outlen = sizeof(ssl->s3.server_random);
4253 memcpy(out, ssl->s3.server_random, outlen);
4257 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
4258 unsigned char *out, size_t outlen)
4261 return session->master_key_length;
4262 if (outlen > session->master_key_length)
4263 outlen = session->master_key_length;
4264 memcpy(out, session->master_key, outlen);
4268 int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
4271 if (len > sizeof(sess->master_key))
4274 memcpy(sess->master_key, in, len);
4275 sess->master_key_length = len;
4280 int SSL_set_ex_data(SSL *s, int idx, void *arg)
4282 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
4285 void *SSL_get_ex_data(const SSL *s, int idx)
4287 return CRYPTO_get_ex_data(&s->ex_data, idx);
4290 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
4292 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
4295 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
4297 return CRYPTO_get_ex_data(&s->ex_data, idx);
4300 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
4302 return ctx->cert_store;
4305 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
4307 X509_STORE_free(ctx->cert_store);
4308 ctx->cert_store = store;
4311 void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
4314 X509_STORE_up_ref(store);
4315 SSL_CTX_set_cert_store(ctx, store);
4318 int SSL_want(const SSL *s)
4324 * \brief Set the callback for generating temporary DH keys.
4325 * \param ctx the SSL context.
4326 * \param dh the callback
4329 #ifndef OPENSSL_NO_DH
4330 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
4331 DH *(*dh) (SSL *ssl, int is_export,
4334 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
4337 void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
4340 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
4344 #ifndef OPENSSL_NO_PSK
4345 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
4347 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
4348 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
4351 OPENSSL_free(ctx->cert->psk_identity_hint);
4352 if (identity_hint != NULL) {
4353 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
4354 if (ctx->cert->psk_identity_hint == NULL)
4357 ctx->cert->psk_identity_hint = NULL;
4361 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
4366 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
4367 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
4370 OPENSSL_free(s->cert->psk_identity_hint);
4371 if (identity_hint != NULL) {
4372 s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
4373 if (s->cert->psk_identity_hint == NULL)
4376 s->cert->psk_identity_hint = NULL;
4380 const char *SSL_get_psk_identity_hint(const SSL *s)
4382 if (s == NULL || s->session == NULL)
4384 return s->session->psk_identity_hint;
4387 const char *SSL_get_psk_identity(const SSL *s)
4389 if (s == NULL || s->session == NULL)
4391 return s->session->psk_identity;
4394 void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
4396 s->psk_client_callback = cb;
4399 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
4401 ctx->psk_client_callback = cb;
4404 void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
4406 s->psk_server_callback = cb;
4409 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
4411 ctx->psk_server_callback = cb;
4415 void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
4417 s->psk_find_session_cb = cb;
4420 void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
4421 SSL_psk_find_session_cb_func cb)
4423 ctx->psk_find_session_cb = cb;
4426 void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
4428 s->psk_use_session_cb = cb;
4431 void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
4432 SSL_psk_use_session_cb_func cb)
4434 ctx->psk_use_session_cb = cb;
4437 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
4438 void (*cb) (int write_p, int version,
4439 int content_type, const void *buf,
4440 size_t len, SSL *ssl, void *arg))
4442 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
4445 void SSL_set_msg_callback(SSL *ssl,
4446 void (*cb) (int write_p, int version,
4447 int content_type, const void *buf,
4448 size_t len, SSL *ssl, void *arg))
4450 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
4453 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
4454 int (*cb) (SSL *ssl,
4458 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
4459 (void (*)(void))cb);
4462 void SSL_set_not_resumable_session_callback(SSL *ssl,
4463 int (*cb) (SSL *ssl,
4464 int is_forward_secure))
4466 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
4467 (void (*)(void))cb);
4470 void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
4471 size_t (*cb) (SSL *ssl, int type,
4472 size_t len, void *arg))
4474 ctx->record_padding_cb = cb;
4477 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
4479 ctx->record_padding_arg = arg;
4482 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
4484 return ctx->record_padding_arg;
4487 int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
4489 /* block size of 0 or 1 is basically no padding */
4490 if (block_size == 1)
4491 ctx->block_padding = 0;
4492 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
4493 ctx->block_padding = block_size;
4499 void SSL_set_record_padding_callback(SSL *ssl,
4500 size_t (*cb) (SSL *ssl, int type,
4501 size_t len, void *arg))
4503 ssl->record_padding_cb = cb;
4506 void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
4508 ssl->record_padding_arg = arg;
4511 void *SSL_get_record_padding_callback_arg(const SSL *ssl)
4513 return ssl->record_padding_arg;
4516 int SSL_set_block_padding(SSL *ssl, size_t block_size)
4518 /* block size of 0 or 1 is basically no padding */
4519 if (block_size == 1)
4520 ssl->block_padding = 0;
4521 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
4522 ssl->block_padding = block_size;
4528 int SSL_set_num_tickets(SSL *s, size_t num_tickets)
4530 s->num_tickets = num_tickets;
4535 size_t SSL_get_num_tickets(const SSL *s)
4537 return s->num_tickets;
4540 int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
4542 ctx->num_tickets = num_tickets;
4547 size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
4549 return ctx->num_tickets;
4553 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
4554 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
4555 * If EVP_MD pointer is passed, initializes ctx with this |md|.
4556 * Returns the newly allocated ctx;
4559 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
4561 ssl_clear_hash_ctx(hash);
4562 *hash = EVP_MD_CTX_new();
4563 if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) {
4564 EVP_MD_CTX_free(*hash);
4571 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
4574 EVP_MD_CTX_free(*hash);
4578 /* Retrieve handshake hashes */
4579 int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen,
4582 EVP_MD_CTX *ctx = NULL;
4583 EVP_MD_CTX *hdgst = s->s3.handshake_dgst;
4584 int hashleni = EVP_MD_CTX_size(hdgst);
4587 if (hashleni < 0 || (size_t)hashleni > outlen) {
4588 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH,
4589 ERR_R_INTERNAL_ERROR);
4593 ctx = EVP_MD_CTX_new();
4597 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
4598 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
4599 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH,
4600 ERR_R_INTERNAL_ERROR);
4604 *hashlen = hashleni;
4608 EVP_MD_CTX_free(ctx);
4612 int SSL_session_reused(const SSL *s)
4617 int SSL_is_server(const SSL *s)
4622 #if !OPENSSL_API_1_1_0
4623 void SSL_set_debug(SSL *s, int debug)
4625 /* Old function was do-nothing anyway... */
4631 void SSL_set_security_level(SSL *s, int level)
4633 s->cert->sec_level = level;
4636 int SSL_get_security_level(const SSL *s)
4638 return s->cert->sec_level;
4641 void SSL_set_security_callback(SSL *s,
4642 int (*cb) (const SSL *s, const SSL_CTX *ctx,
4643 int op, int bits, int nid,
4644 void *other, void *ex))
4646 s->cert->sec_cb = cb;
4649 int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
4650 const SSL_CTX *ctx, int op,
4651 int bits, int nid, void *other,
4653 return s->cert->sec_cb;
4656 void SSL_set0_security_ex_data(SSL *s, void *ex)
4658 s->cert->sec_ex = ex;
4661 void *SSL_get0_security_ex_data(const SSL *s)
4663 return s->cert->sec_ex;
4666 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
4668 ctx->cert->sec_level = level;
4671 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
4673 return ctx->cert->sec_level;
4676 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
4677 int (*cb) (const SSL *s, const SSL_CTX *ctx,
4678 int op, int bits, int nid,
4679 void *other, void *ex))
4681 ctx->cert->sec_cb = cb;
4684 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
4690 return ctx->cert->sec_cb;
4693 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
4695 ctx->cert->sec_ex = ex;
4698 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
4700 return ctx->cert->sec_ex;
4704 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4705 * can return unsigned long, instead of the generic long return value from the
4706 * control interface.
4708 unsigned long SSL_CTX_get_options(const SSL_CTX *ctx)
4710 return ctx->options;
4713 unsigned long SSL_get_options(const SSL *s)
4718 unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op)
4720 return ctx->options |= op;
4723 unsigned long SSL_set_options(SSL *s, unsigned long op)
4725 return s->options |= op;
4728 unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op)
4730 return ctx->options &= ~op;
4733 unsigned long SSL_clear_options(SSL *s, unsigned long op)
4735 return s->options &= ~op;
4738 STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
4740 return s->verified_chain;
4743 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
4745 #ifndef OPENSSL_NO_CT
4748 * Moves SCTs from the |src| stack to the |dst| stack.
4749 * The source of each SCT will be set to |origin|.
4750 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4752 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4754 static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
4755 sct_source_t origin)
4761 *dst = sk_SCT_new_null();
4763 SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE);
4768 while ((sct = sk_SCT_pop(src)) != NULL) {
4769 if (SCT_set_source(sct, origin) != 1)
4772 if (sk_SCT_push(*dst, sct) <= 0)
4780 sk_SCT_push(src, sct); /* Put the SCT back */
4785 * Look for data collected during ServerHello and parse if found.
4786 * Returns the number of SCTs extracted.
4788 static int ct_extract_tls_extension_scts(SSL *s)
4790 int scts_extracted = 0;
4792 if (s->ext.scts != NULL) {
4793 const unsigned char *p = s->ext.scts;
4794 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
4796 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
4798 SCT_LIST_free(scts);
4801 return scts_extracted;
4805 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4806 * contains an SCT X509 extension. They will be stored in |s->scts|.
4808 * - The number of SCTs extracted, assuming an OCSP response exists.
4809 * - 0 if no OCSP response exists or it contains no SCTs.
4810 * - A negative integer if an error occurs.
4812 static int ct_extract_ocsp_response_scts(SSL *s)
4814 # ifndef OPENSSL_NO_OCSP
4815 int scts_extracted = 0;
4816 const unsigned char *p;
4817 OCSP_BASICRESP *br = NULL;
4818 OCSP_RESPONSE *rsp = NULL;
4819 STACK_OF(SCT) *scts = NULL;
4822 if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
4825 p = s->ext.ocsp.resp;
4826 rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
4830 br = OCSP_response_get1_basic(rsp);
4834 for (i = 0; i < OCSP_resp_count(br); ++i) {
4835 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
4841 OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
4843 ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
4844 if (scts_extracted < 0)
4848 SCT_LIST_free(scts);
4849 OCSP_BASICRESP_free(br);
4850 OCSP_RESPONSE_free(rsp);
4851 return scts_extracted;
4853 /* Behave as if no OCSP response exists */
4859 * Attempts to extract SCTs from the peer certificate.
4860 * Return the number of SCTs extracted, or a negative integer if an error
4863 static int ct_extract_x509v3_extension_scts(SSL *s)
4865 int scts_extracted = 0;
4866 X509 *cert = s->session != NULL ? s->session->peer : NULL;
4869 STACK_OF(SCT) *scts =
4870 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
4873 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
4875 SCT_LIST_free(scts);
4878 return scts_extracted;
4882 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4883 * response (if it exists) and X509v3 extensions in the certificate.
4884 * Returns NULL if an error occurs.
4886 const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
4888 if (!s->scts_parsed) {
4889 if (ct_extract_tls_extension_scts(s) < 0 ||
4890 ct_extract_ocsp_response_scts(s) < 0 ||
4891 ct_extract_x509v3_extension_scts(s) < 0)
4901 static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx,
4902 const STACK_OF(SCT) *scts, void *unused_arg)
4907 static int ct_strict(const CT_POLICY_EVAL_CTX * ctx,
4908 const STACK_OF(SCT) *scts, void *unused_arg)
4910 int count = scts != NULL ? sk_SCT_num(scts) : 0;
4913 for (i = 0; i < count; ++i) {
4914 SCT *sct = sk_SCT_value(scts, i);
4915 int status = SCT_get_validation_status(sct);
4917 if (status == SCT_VALIDATION_STATUS_VALID)
4920 SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS);
4924 int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
4928 * Since code exists that uses the custom extension handler for CT, look
4929 * for this and throw an error if they have already registered to use CT.
4931 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
4932 TLSEXT_TYPE_signed_certificate_timestamp))
4934 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK,
4935 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
4939 if (callback != NULL) {
4941 * If we are validating CT, then we MUST accept SCTs served via OCSP
4943 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
4947 s->ct_validation_callback = callback;
4948 s->ct_validation_callback_arg = arg;
4953 int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
4954 ssl_ct_validation_cb callback, void *arg)
4957 * Since code exists that uses the custom extension handler for CT, look for
4958 * this and throw an error if they have already registered to use CT.
4960 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
4961 TLSEXT_TYPE_signed_certificate_timestamp))
4963 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK,
4964 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
4968 ctx->ct_validation_callback = callback;
4969 ctx->ct_validation_callback_arg = arg;
4973 int SSL_ct_is_enabled(const SSL *s)
4975 return s->ct_validation_callback != NULL;
4978 int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
4980 return ctx->ct_validation_callback != NULL;
4983 int ssl_validate_ct(SSL *s)
4986 X509 *cert = s->session != NULL ? s->session->peer : NULL;
4988 SSL_DANE *dane = &s->dane;
4989 CT_POLICY_EVAL_CTX *ctx = NULL;
4990 const STACK_OF(SCT) *scts;
4993 * If no callback is set, the peer is anonymous, or its chain is invalid,
4994 * skip SCT validation - just return success. Applications that continue
4995 * handshakes without certificates, with unverified chains, or pinned leaf
4996 * certificates are outside the scope of the WebPKI and CT.
4998 * The above exclusions notwithstanding the vast majority of peers will
4999 * have rather ordinary certificate chains validated by typical
5000 * applications that perform certificate verification and therefore will
5001 * process SCTs when enabled.
5003 if (s->ct_validation_callback == NULL || cert == NULL ||
5004 s->verify_result != X509_V_OK ||
5005 s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
5009 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
5010 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
5012 if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
5013 switch (dane->mtlsa->usage) {
5014 case DANETLS_USAGE_DANE_TA:
5015 case DANETLS_USAGE_DANE_EE:
5020 ctx = CT_POLICY_EVAL_CTX_new();
5022 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_VALIDATE_CT,
5023 ERR_R_MALLOC_FAILURE);
5027 issuer = sk_X509_value(s->verified_chain, 1);
5028 CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
5029 CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
5030 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx, s->ctx->ctlog_store);
5031 CT_POLICY_EVAL_CTX_set_time(
5032 ctx, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s)) * 1000);
5034 scts = SSL_get0_peer_scts(s);
5037 * This function returns success (> 0) only when all the SCTs are valid, 0
5038 * when some are invalid, and < 0 on various internal errors (out of
5039 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
5040 * reason to abort the handshake, that decision is up to the callback.
5041 * Therefore, we error out only in the unexpected case that the return
5042 * value is negative.
5044 * XXX: One might well argue that the return value of this function is an
5045 * unfortunate design choice. Its job is only to determine the validation
5046 * status of each of the provided SCTs. So long as it correctly separates
5047 * the wheat from the chaff it should return success. Failure in this case
5048 * ought to correspond to an inability to carry out its duties.
5050 if (SCT_LIST_validate(scts, ctx) < 0) {
5051 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_SSL_VALIDATE_CT,
5052 SSL_R_SCT_VERIFICATION_FAILED);
5056 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
5058 ret = 0; /* This function returns 0 on failure */
5060 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_SSL_VALIDATE_CT,
5061 SSL_R_CALLBACK_FAILED);
5064 CT_POLICY_EVAL_CTX_free(ctx);
5066 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
5067 * failure return code here. Also the application may wish the complete
5068 * the handshake, and then disconnect cleanly at a higher layer, after
5069 * checking the verification status of the completed connection.
5071 * We therefore force a certificate verification failure which will be
5072 * visible via SSL_get_verify_result() and cached as part of any resumed
5075 * Note: the permissive callback is for information gathering only, always
5076 * returns success, and does not affect verification status. Only the
5077 * strict callback or a custom application-specified callback can trigger
5078 * connection failure or record a verification error.
5081 s->verify_result = X509_V_ERR_NO_VALID_SCTS;
5085 int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
5087 switch (validation_mode) {
5089 SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE);
5091 case SSL_CT_VALIDATION_PERMISSIVE:
5092 return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
5093 case SSL_CT_VALIDATION_STRICT:
5094 return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
5098 int SSL_enable_ct(SSL *s, int validation_mode)
5100 switch (validation_mode) {
5102 SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE);
5104 case SSL_CT_VALIDATION_PERMISSIVE:
5105 return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
5106 case SSL_CT_VALIDATION_STRICT:
5107 return SSL_set_ct_validation_callback(s, ct_strict, NULL);
5111 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
5113 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
5116 int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
5118 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
5121 void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs)
5123 CTLOG_STORE_free(ctx->ctlog_store);
5124 ctx->ctlog_store = logs;
5127 const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
5129 return ctx->ctlog_store;
5132 #endif /* OPENSSL_NO_CT */
5134 void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
5137 c->client_hello_cb = cb;
5138 c->client_hello_cb_arg = arg;
5141 int SSL_client_hello_isv2(SSL *s)
5143 if (s->clienthello == NULL)
5145 return s->clienthello->isv2;
5148 unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
5150 if (s->clienthello == NULL)
5152 return s->clienthello->legacy_version;
5155 size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out)
5157 if (s->clienthello == NULL)
5160 *out = s->clienthello->random;
5161 return SSL3_RANDOM_SIZE;
5164 size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
5166 if (s->clienthello == NULL)
5169 *out = s->clienthello->session_id;
5170 return s->clienthello->session_id_len;
5173 size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
5175 if (s->clienthello == NULL)
5178 *out = PACKET_data(&s->clienthello->ciphersuites);
5179 return PACKET_remaining(&s->clienthello->ciphersuites);
5182 size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
5184 if (s->clienthello == NULL)
5187 *out = s->clienthello->compressions;
5188 return s->clienthello->compressions_len;
5191 int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
5197 if (s->clienthello == NULL || out == NULL || outlen == NULL)
5199 for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) {
5200 ext = s->clienthello->pre_proc_exts + i;
5209 if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL) {
5210 SSLerr(SSL_F_SSL_CLIENT_HELLO_GET1_EXTENSIONS_PRESENT,
5211 ERR_R_MALLOC_FAILURE);
5214 for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) {
5215 ext = s->clienthello->pre_proc_exts + i;
5217 if (ext->received_order >= num)
5219 present[ext->received_order] = ext->type;
5226 OPENSSL_free(present);
5230 int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
5236 if (s->clienthello == NULL)
5238 for (i = 0; i < s->clienthello->pre_proc_exts_len; ++i) {
5239 r = s->clienthello->pre_proc_exts + i;
5240 if (r->present && r->type == type) {
5242 *out = PACKET_data(&r->data);
5244 *outlen = PACKET_remaining(&r->data);
5251 int SSL_free_buffers(SSL *ssl)
5253 RECORD_LAYER *rl = &ssl->rlayer;
5255 if (RECORD_LAYER_read_pending(rl) || RECORD_LAYER_write_pending(rl))
5258 RECORD_LAYER_release(rl);
5262 int SSL_alloc_buffers(SSL *ssl)
5264 return ssl3_setup_buffers(ssl);
5267 void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
5269 ctx->keylog_callback = cb;
5272 SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
5274 return ctx->keylog_callback;
5277 static int nss_keylog_int(const char *prefix,
5279 const uint8_t *parameter_1,
5280 size_t parameter_1_len,
5281 const uint8_t *parameter_2,
5282 size_t parameter_2_len)
5285 char *cursor = NULL;
5290 if (ssl->ctx->keylog_callback == NULL)
5294 * Our output buffer will contain the following strings, rendered with
5295 * space characters in between, terminated by a NULL character: first the
5296 * prefix, then the first parameter, then the second parameter. The
5297 * meaning of each parameter depends on the specific key material being
5298 * logged. Note that the first and second parameters are encoded in
5299 * hexadecimal, so we need a buffer that is twice their lengths.
5301 prefix_len = strlen(prefix);
5302 out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
5303 if ((out = cursor = OPENSSL_malloc(out_len)) == NULL) {
5304 SSLfatal(ssl, SSL_AD_INTERNAL_ERROR, SSL_F_NSS_KEYLOG_INT,
5305 ERR_R_MALLOC_FAILURE);
5309 strcpy(cursor, prefix);
5310 cursor += prefix_len;
5313 for (i = 0; i < parameter_1_len; i++) {
5314 sprintf(cursor, "%02x", parameter_1[i]);
5319 for (i = 0; i < parameter_2_len; i++) {
5320 sprintf(cursor, "%02x", parameter_2[i]);
5325 ssl->ctx->keylog_callback(ssl, (const char *)out);
5326 OPENSSL_clear_free(out, out_len);
5331 int ssl_log_rsa_client_key_exchange(SSL *ssl,
5332 const uint8_t *encrypted_premaster,
5333 size_t encrypted_premaster_len,
5334 const uint8_t *premaster,
5335 size_t premaster_len)
5337 if (encrypted_premaster_len < 8) {
5338 SSLfatal(ssl, SSL_AD_INTERNAL_ERROR,
5339 SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
5343 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
5344 return nss_keylog_int("RSA",
5346 encrypted_premaster,
5352 int ssl_log_secret(SSL *ssl,
5354 const uint8_t *secret,
5357 return nss_keylog_int(label,
5359 ssl->s3.client_random,
5365 #define SSLV2_CIPHER_LEN 3
5367 int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites, int sslv2format)
5371 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
5373 if (PACKET_remaining(cipher_suites) == 0) {
5374 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_SSL_CACHE_CIPHERLIST,
5375 SSL_R_NO_CIPHERS_SPECIFIED);
5379 if (PACKET_remaining(cipher_suites) % n != 0) {
5380 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
5381 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
5385 OPENSSL_free(s->s3.tmp.ciphers_raw);
5386 s->s3.tmp.ciphers_raw = NULL;
5387 s->s3.tmp.ciphers_rawlen = 0;
5390 size_t numciphers = PACKET_remaining(cipher_suites) / n;
5391 PACKET sslv2ciphers = *cipher_suites;
5392 unsigned int leadbyte;
5396 * We store the raw ciphers list in SSLv3+ format so we need to do some
5397 * preprocessing to convert the list first. If there are any SSLv2 only
5398 * ciphersuites with a non-zero leading byte then we are going to
5399 * slightly over allocate because we won't store those. But that isn't a
5402 raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
5403 s->s3.tmp.ciphers_raw = raw;
5405 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
5406 ERR_R_MALLOC_FAILURE);
5409 for (s->s3.tmp.ciphers_rawlen = 0;
5410 PACKET_remaining(&sslv2ciphers) > 0;
5411 raw += TLS_CIPHER_LEN) {
5412 if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
5414 && !PACKET_copy_bytes(&sslv2ciphers, raw,
5417 && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
5418 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
5420 OPENSSL_free(s->s3.tmp.ciphers_raw);
5421 s->s3.tmp.ciphers_raw = NULL;
5422 s->s3.tmp.ciphers_rawlen = 0;
5426 s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN;
5428 } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw,
5429 &s->s3.tmp.ciphers_rawlen)) {
5430 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
5431 ERR_R_INTERNAL_ERROR);
5437 int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
5438 int isv2format, STACK_OF(SSL_CIPHER) **sk,
5439 STACK_OF(SSL_CIPHER) **scsvs)
5443 if (!PACKET_buf_init(&pkt, bytes, len))
5445 return bytes_to_cipher_list(s, &pkt, sk, scsvs, isv2format, 0);
5448 int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites,
5449 STACK_OF(SSL_CIPHER) **skp,
5450 STACK_OF(SSL_CIPHER) **scsvs_out,
5451 int sslv2format, int fatal)
5453 const SSL_CIPHER *c;
5454 STACK_OF(SSL_CIPHER) *sk = NULL;
5455 STACK_OF(SSL_CIPHER) *scsvs = NULL;
5457 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
5458 unsigned char cipher[SSLV2_CIPHER_LEN];
5460 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
5462 if (PACKET_remaining(cipher_suites) == 0) {
5464 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_BYTES_TO_CIPHER_LIST,
5465 SSL_R_NO_CIPHERS_SPECIFIED);
5467 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_NO_CIPHERS_SPECIFIED);
5471 if (PACKET_remaining(cipher_suites) % n != 0) {
5473 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,
5474 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
5476 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST,
5477 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
5481 sk = sk_SSL_CIPHER_new_null();
5482 scsvs = sk_SSL_CIPHER_new_null();
5483 if (sk == NULL || scsvs == NULL) {
5485 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,
5486 ERR_R_MALLOC_FAILURE);
5488 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
5492 while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
5494 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
5495 * first byte set to zero, while true SSLv2 ciphers have a non-zero
5496 * first byte. We don't support any true SSLv2 ciphers, so skip them.
5498 if (sslv2format && cipher[0] != '\0')
5501 /* For SSLv2-compat, ignore leading 0-byte. */
5502 c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
5504 if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
5505 (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
5507 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
5508 SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
5510 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
5515 if (PACKET_remaining(cipher_suites) > 0) {
5517 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,
5520 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_BAD_LENGTH);
5527 sk_SSL_CIPHER_free(sk);
5528 if (scsvs_out != NULL)
5531 sk_SSL_CIPHER_free(scsvs);
5534 sk_SSL_CIPHER_free(sk);
5535 sk_SSL_CIPHER_free(scsvs);
5539 int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
5541 ctx->max_early_data = max_early_data;
5546 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
5548 return ctx->max_early_data;
5551 int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
5553 s->max_early_data = max_early_data;
5558 uint32_t SSL_get_max_early_data(const SSL *s)
5560 return s->max_early_data;
5563 int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
5565 ctx->recv_max_early_data = recv_max_early_data;
5570 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
5572 return ctx->recv_max_early_data;
5575 int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
5577 s->recv_max_early_data = recv_max_early_data;
5582 uint32_t SSL_get_recv_max_early_data(const SSL *s)
5584 return s->recv_max_early_data;
5587 __owur unsigned int ssl_get_max_send_fragment(const SSL *ssl)
5589 /* Return any active Max Fragment Len extension */
5590 if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session))
5591 return GET_MAX_FRAGMENT_LENGTH(ssl->session);
5593 /* return current SSL connection setting */
5594 return ssl->max_send_fragment;
5597 __owur unsigned int ssl_get_split_send_fragment(const SSL *ssl)
5599 /* Return a value regarding an active Max Fragment Len extension */
5600 if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session)
5601 && ssl->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(ssl->session))
5602 return GET_MAX_FRAGMENT_LENGTH(ssl->session);
5604 /* else limit |split_send_fragment| to current |max_send_fragment| */
5605 if (ssl->split_send_fragment > ssl->max_send_fragment)
5606 return ssl->max_send_fragment;
5608 /* return current SSL connection setting */
5609 return ssl->split_send_fragment;
5612 int SSL_stateless(SSL *s)
5616 /* Ensure there is no state left over from a previous invocation */
5622 s->s3.flags |= TLS1_FLAGS_STATELESS;
5623 ret = SSL_accept(s);
5624 s->s3.flags &= ~TLS1_FLAGS_STATELESS;
5626 if (ret > 0 && s->ext.cookieok)
5629 if (s->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(s))
5635 void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
5637 ctx->pha_enabled = val;
5640 void SSL_set_post_handshake_auth(SSL *ssl, int val)
5642 ssl->pha_enabled = val;
5645 int SSL_verify_client_post_handshake(SSL *ssl)
5647 if (!SSL_IS_TLS13(ssl)) {
5648 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_WRONG_SSL_VERSION);
5652 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_NOT_SERVER);
5656 if (!SSL_is_init_finished(ssl)) {
5657 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_STILL_IN_INIT);
5661 switch (ssl->post_handshake_auth) {
5663 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_EXTENSION_NOT_RECEIVED);
5666 case SSL_PHA_EXT_SENT:
5667 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, ERR_R_INTERNAL_ERROR);
5669 case SSL_PHA_EXT_RECEIVED:
5671 case SSL_PHA_REQUEST_PENDING:
5672 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_REQUEST_PENDING);
5674 case SSL_PHA_REQUESTED:
5675 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_REQUEST_SENT);
5679 ssl->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
5681 /* checks verify_mode and algorithm_auth */
5682 if (!send_certificate_request(ssl)) {
5683 ssl->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
5684 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_INVALID_CONFIG);
5688 ossl_statem_set_in_init(ssl, 1);
5692 int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
5693 SSL_CTX_generate_session_ticket_fn gen_cb,
5694 SSL_CTX_decrypt_session_ticket_fn dec_cb,
5697 ctx->generate_ticket_cb = gen_cb;
5698 ctx->decrypt_ticket_cb = dec_cb;
5699 ctx->ticket_cb_data = arg;
5703 void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
5704 SSL_allow_early_data_cb_fn cb,
5707 ctx->allow_early_data_cb = cb;
5708 ctx->allow_early_data_cb_data = arg;
5711 void SSL_set_allow_early_data_cb(SSL *s,
5712 SSL_allow_early_data_cb_fn cb,
5715 s->allow_early_data_cb = cb;
5716 s->allow_early_data_cb_data = arg;