2 * Copyright 1995-2021 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 OpenSSL license (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
13 #include "ssl_local.h"
14 #include <openssl/objects.h>
15 #include <openssl/x509v3.h>
16 #include <openssl/rand.h>
17 #include <openssl/rand_drbg.h>
18 #include <openssl/ocsp.h>
19 #include <openssl/dh.h>
20 #include <openssl/engine.h>
21 #include <openssl/async.h>
22 #include <openssl/ct.h>
23 #include "internal/cryptlib.h"
24 #include "internal/refcount.h"
26 const char SSL_version_str[] = OPENSSL_VERSION_TEXT;
28 static int ssl_undefined_function_1(SSL *ssl, SSL3_RECORD *r, size_t s, int t)
33 return ssl_undefined_function(ssl);
36 static int ssl_undefined_function_2(SSL *ssl, SSL3_RECORD *r, unsigned char *s,
42 return ssl_undefined_function(ssl);
45 static int ssl_undefined_function_3(SSL *ssl, unsigned char *r,
46 unsigned char *s, size_t t, size_t *u)
52 return ssl_undefined_function(ssl);
55 static int ssl_undefined_function_4(SSL *ssl, int r)
58 return ssl_undefined_function(ssl);
61 static size_t ssl_undefined_function_5(SSL *ssl, const char *r, size_t s,
67 return ssl_undefined_function(ssl);
70 static int ssl_undefined_function_6(int r)
73 return ssl_undefined_function(NULL);
76 static int ssl_undefined_function_7(SSL *ssl, unsigned char *r, size_t s,
77 const char *t, size_t u,
78 const unsigned char *v, size_t w, int x)
87 return ssl_undefined_function(ssl);
90 SSL3_ENC_METHOD ssl3_undef_enc_method = {
91 ssl_undefined_function_1,
92 ssl_undefined_function_2,
93 ssl_undefined_function,
94 ssl_undefined_function_3,
95 ssl_undefined_function_4,
96 ssl_undefined_function_5,
97 NULL, /* client_finished_label */
98 0, /* client_finished_label_len */
99 NULL, /* server_finished_label */
100 0, /* server_finished_label_len */
101 ssl_undefined_function_6,
102 ssl_undefined_function_7,
105 struct ssl_async_args {
109 enum { READFUNC, WRITEFUNC, OTHERFUNC } type;
111 int (*func_read) (SSL *, void *, size_t, size_t *);
112 int (*func_write) (SSL *, const void *, size_t, size_t *);
113 int (*func_other) (SSL *);
117 static const struct {
123 DANETLS_MATCHING_FULL, 0, NID_undef
126 DANETLS_MATCHING_2256, 1, NID_sha256
129 DANETLS_MATCHING_2512, 2, NID_sha512
133 static int dane_ctx_enable(struct dane_ctx_st *dctx)
135 const EVP_MD **mdevp;
137 uint8_t mdmax = DANETLS_MATCHING_LAST;
138 int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */
141 if (dctx->mdevp != NULL)
144 mdevp = OPENSSL_zalloc(n * sizeof(*mdevp));
145 mdord = OPENSSL_zalloc(n * sizeof(*mdord));
147 if (mdord == NULL || mdevp == NULL) {
150 SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE);
154 /* Install default entries */
155 for (i = 0; i < OSSL_NELEM(dane_mds); ++i) {
158 if (dane_mds[i].nid == NID_undef ||
159 (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL)
161 mdevp[dane_mds[i].mtype] = md;
162 mdord[dane_mds[i].mtype] = dane_mds[i].ord;
172 static void dane_ctx_final(struct dane_ctx_st *dctx)
174 OPENSSL_free(dctx->mdevp);
177 OPENSSL_free(dctx->mdord);
182 static void tlsa_free(danetls_record *t)
186 OPENSSL_free(t->data);
187 EVP_PKEY_free(t->spki);
191 static void dane_final(SSL_DANE *dane)
193 sk_danetls_record_pop_free(dane->trecs, tlsa_free);
196 sk_X509_pop_free(dane->certs, X509_free);
199 X509_free(dane->mcert);
207 * dane_copy - Copy dane configuration, sans verification state.
209 static int ssl_dane_dup(SSL *to, SSL *from)
214 if (!DANETLS_ENABLED(&from->dane))
217 num = sk_danetls_record_num(from->dane.trecs);
218 dane_final(&to->dane);
219 to->dane.flags = from->dane.flags;
220 to->dane.dctx = &to->ctx->dane;
221 to->dane.trecs = sk_danetls_record_new_reserve(NULL, num);
223 if (to->dane.trecs == NULL) {
224 SSLerr(SSL_F_SSL_DANE_DUP, ERR_R_MALLOC_FAILURE);
228 for (i = 0; i < num; ++i) {
229 danetls_record *t = sk_danetls_record_value(from->dane.trecs, i);
231 if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype,
232 t->data, t->dlen) <= 0)
238 static int dane_mtype_set(struct dane_ctx_st *dctx,
239 const EVP_MD *md, uint8_t mtype, uint8_t ord)
243 if (mtype == DANETLS_MATCHING_FULL && md != NULL) {
244 SSLerr(SSL_F_DANE_MTYPE_SET, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL);
248 if (mtype > dctx->mdmax) {
249 const EVP_MD **mdevp;
251 int n = ((int)mtype) + 1;
253 mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp));
255 SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE);
260 mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord));
262 SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE);
267 /* Zero-fill any gaps */
268 for (i = dctx->mdmax + 1; i < mtype; ++i) {
276 dctx->mdevp[mtype] = md;
277 /* Coerce ordinal of disabled matching types to 0 */
278 dctx->mdord[mtype] = (md == NULL) ? 0 : ord;
283 static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype)
285 if (mtype > dane->dctx->mdmax)
287 return dane->dctx->mdevp[mtype];
290 static int dane_tlsa_add(SSL_DANE *dane,
293 uint8_t mtype, unsigned const char *data, size_t dlen)
296 const EVP_MD *md = NULL;
297 int ilen = (int)dlen;
301 if (dane->trecs == NULL) {
302 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED);
306 if (ilen < 0 || dlen != (size_t)ilen) {
307 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH);
311 if (usage > DANETLS_USAGE_LAST) {
312 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE);
316 if (selector > DANETLS_SELECTOR_LAST) {
317 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR);
321 if (mtype != DANETLS_MATCHING_FULL) {
322 md = tlsa_md_get(dane, mtype);
324 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE);
329 if (md != NULL && dlen != (size_t)EVP_MD_size(md)) {
330 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH);
334 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA);
338 if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) {
339 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
344 t->selector = selector;
346 t->data = OPENSSL_malloc(dlen);
347 if (t->data == NULL) {
349 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
352 memcpy(t->data, data, dlen);
355 /* Validate and cache full certificate or public key */
356 if (mtype == DANETLS_MATCHING_FULL) {
357 const unsigned char *p = data;
359 EVP_PKEY *pkey = NULL;
362 case DANETLS_SELECTOR_CERT:
363 if (!d2i_X509(&cert, &p, ilen) || p < data ||
364 dlen != (size_t)(p - data)) {
366 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
369 if (X509_get0_pubkey(cert) == NULL) {
371 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
375 if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
381 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
382 * records that contain full certificates of trust-anchors that are
383 * not present in the wire chain. For usage PKIX-TA(0), we augment
384 * the chain with untrusted Full(0) certificates from DNS, in case
385 * they are missing from the chain.
387 if ((dane->certs == NULL &&
388 (dane->certs = sk_X509_new_null()) == NULL) ||
389 !sk_X509_push(dane->certs, cert)) {
390 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
397 case DANETLS_SELECTOR_SPKI:
398 if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data ||
399 dlen != (size_t)(p - data)) {
401 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
406 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
407 * records that contain full bare keys of trust-anchors that are
408 * not present in the wire chain.
410 if (usage == DANETLS_USAGE_DANE_TA)
419 * Find the right insertion point for the new record.
421 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
422 * they can be processed first, as they require no chain building, and no
423 * expiration or hostname checks. Because DANE-EE(3) is numerically
424 * largest, this is accomplished via descending sort by "usage".
426 * We also sort in descending order by matching ordinal to simplify
427 * the implementation of digest agility in the verification code.
429 * The choice of order for the selector is not significant, so we
430 * use the same descending order for consistency.
432 num = sk_danetls_record_num(dane->trecs);
433 for (i = 0; i < num; ++i) {
434 danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
436 if (rec->usage > usage)
438 if (rec->usage < usage)
440 if (rec->selector > selector)
442 if (rec->selector < selector)
444 if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
449 if (!sk_danetls_record_insert(dane->trecs, t, i)) {
451 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
454 dane->umask |= DANETLS_USAGE_BIT(usage);
460 * Return 0 if there is only one version configured and it was disabled
461 * at configure time. Return 1 otherwise.
463 static int ssl_check_allowed_versions(int min_version, int max_version)
465 int minisdtls = 0, maxisdtls = 0;
467 /* Figure out if we're doing DTLS versions or TLS versions */
468 if (min_version == DTLS1_BAD_VER
469 || min_version >> 8 == DTLS1_VERSION_MAJOR)
471 if (max_version == DTLS1_BAD_VER
472 || max_version >> 8 == DTLS1_VERSION_MAJOR)
474 /* A wildcard version of 0 could be DTLS or TLS. */
475 if ((minisdtls && !maxisdtls && max_version != 0)
476 || (maxisdtls && !minisdtls && min_version != 0)) {
477 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
481 if (minisdtls || maxisdtls) {
482 /* Do DTLS version checks. */
483 if (min_version == 0)
484 /* Ignore DTLS1_BAD_VER */
485 min_version = DTLS1_VERSION;
486 if (max_version == 0)
487 max_version = DTLS1_2_VERSION;
488 #ifdef OPENSSL_NO_DTLS1_2
489 if (max_version == DTLS1_2_VERSION)
490 max_version = DTLS1_VERSION;
492 #ifdef OPENSSL_NO_DTLS1
493 if (min_version == DTLS1_VERSION)
494 min_version = DTLS1_2_VERSION;
496 /* Done massaging versions; do the check. */
498 #ifdef OPENSSL_NO_DTLS1
499 || (DTLS_VERSION_GE(min_version, DTLS1_VERSION)
500 && DTLS_VERSION_GE(DTLS1_VERSION, max_version))
502 #ifdef OPENSSL_NO_DTLS1_2
503 || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION)
504 && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version))
509 /* Regular TLS version checks. */
510 if (min_version == 0)
511 min_version = SSL3_VERSION;
512 if (max_version == 0)
513 max_version = TLS1_3_VERSION;
514 #ifdef OPENSSL_NO_TLS1_3
515 if (max_version == TLS1_3_VERSION)
516 max_version = TLS1_2_VERSION;
518 #ifdef OPENSSL_NO_TLS1_2
519 if (max_version == TLS1_2_VERSION)
520 max_version = TLS1_1_VERSION;
522 #ifdef OPENSSL_NO_TLS1_1
523 if (max_version == TLS1_1_VERSION)
524 max_version = TLS1_VERSION;
526 #ifdef OPENSSL_NO_TLS1
527 if (max_version == TLS1_VERSION)
528 max_version = SSL3_VERSION;
530 #ifdef OPENSSL_NO_SSL3
531 if (min_version == SSL3_VERSION)
532 min_version = TLS1_VERSION;
534 #ifdef OPENSSL_NO_TLS1
535 if (min_version == TLS1_VERSION)
536 min_version = TLS1_1_VERSION;
538 #ifdef OPENSSL_NO_TLS1_1
539 if (min_version == TLS1_1_VERSION)
540 min_version = TLS1_2_VERSION;
542 #ifdef OPENSSL_NO_TLS1_2
543 if (min_version == TLS1_2_VERSION)
544 min_version = TLS1_3_VERSION;
546 /* Done massaging versions; do the check. */
548 #ifdef OPENSSL_NO_SSL3
549 || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version)
551 #ifdef OPENSSL_NO_TLS1
552 || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version)
554 #ifdef OPENSSL_NO_TLS1_1
555 || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version)
557 #ifdef OPENSSL_NO_TLS1_2
558 || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version)
560 #ifdef OPENSSL_NO_TLS1_3
561 || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version)
569 static void clear_ciphers(SSL *s)
571 /* clear the current cipher */
572 ssl_clear_cipher_ctx(s);
573 ssl_clear_hash_ctx(&s->read_hash);
574 ssl_clear_hash_ctx(&s->write_hash);
577 int SSL_clear(SSL *s)
579 if (s->method == NULL) {
580 SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED);
584 if (ssl_clear_bad_session(s)) {
585 SSL_SESSION_free(s->session);
588 SSL_SESSION_free(s->psksession);
589 s->psksession = NULL;
590 OPENSSL_free(s->psksession_id);
591 s->psksession_id = NULL;
592 s->psksession_id_len = 0;
593 s->hello_retry_request = 0;
600 if (s->renegotiate) {
601 SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR);
605 ossl_statem_clear(s);
607 s->version = s->method->version;
608 s->client_version = s->version;
609 s->rwstate = SSL_NOTHING;
611 BUF_MEM_free(s->init_buf);
616 s->key_update = SSL_KEY_UPDATE_NONE;
618 EVP_MD_CTX_free(s->pha_dgst);
621 /* Reset DANE verification result state */
624 X509_free(s->dane.mcert);
625 s->dane.mcert = NULL;
626 s->dane.mtlsa = NULL;
628 /* Clear the verification result peername */
629 X509_VERIFY_PARAM_move_peername(s->param, NULL);
631 /* Clear any shared connection state */
632 OPENSSL_free(s->shared_sigalgs);
633 s->shared_sigalgs = NULL;
634 s->shared_sigalgslen = 0;
637 * Check to see if we were changed into a different method, if so, revert
640 if (s->method != s->ctx->method) {
641 s->method->ssl_free(s);
642 s->method = s->ctx->method;
643 if (!s->method->ssl_new(s))
646 if (!s->method->ssl_clear(s))
650 RECORD_LAYER_clear(&s->rlayer);
655 /** Used to change an SSL_CTXs default SSL method type */
656 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
658 STACK_OF(SSL_CIPHER) *sk;
662 if (!SSL_CTX_set_ciphersuites(ctx, TLS_DEFAULT_CIPHERSUITES)) {
663 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
666 sk = ssl_create_cipher_list(ctx->method,
667 ctx->tls13_ciphersuites,
669 &(ctx->cipher_list_by_id),
670 SSL_DEFAULT_CIPHER_LIST, ctx->cert);
671 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
672 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
678 SSL *SSL_new(SSL_CTX *ctx)
683 SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
686 if (ctx->method == NULL) {
687 SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
691 s = OPENSSL_zalloc(sizeof(*s));
696 s->lock = CRYPTO_THREAD_lock_new();
697 if (s->lock == NULL) {
703 RECORD_LAYER_init(&s->rlayer, s);
705 s->options = ctx->options;
706 s->dane.flags = ctx->dane.flags;
707 s->min_proto_version = ctx->min_proto_version;
708 s->max_proto_version = ctx->max_proto_version;
710 s->max_cert_list = ctx->max_cert_list;
711 s->max_early_data = ctx->max_early_data;
712 s->recv_max_early_data = ctx->recv_max_early_data;
713 s->num_tickets = ctx->num_tickets;
714 s->pha_enabled = ctx->pha_enabled;
716 /* Shallow copy of the ciphersuites stack */
717 s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
718 if (s->tls13_ciphersuites == NULL)
722 * Earlier library versions used to copy the pointer to the CERT, not
723 * its contents; only when setting new parameters for the per-SSL
724 * copy, ssl_cert_new would be called (and the direct reference to
725 * the per-SSL_CTX settings would be lost, but those still were
726 * indirectly accessed for various purposes, and for that reason they
727 * used to be known as s->ctx->default_cert). Now we don't look at the
728 * SSL_CTX's CERT after having duplicated it once.
730 s->cert = ssl_cert_dup(ctx->cert);
734 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
735 s->msg_callback = ctx->msg_callback;
736 s->msg_callback_arg = ctx->msg_callback_arg;
737 s->verify_mode = ctx->verify_mode;
738 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
739 s->record_padding_cb = ctx->record_padding_cb;
740 s->record_padding_arg = ctx->record_padding_arg;
741 s->block_padding = ctx->block_padding;
742 s->sid_ctx_length = ctx->sid_ctx_length;
743 if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
745 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
746 s->verify_callback = ctx->default_verify_callback;
747 s->generate_session_id = ctx->generate_session_id;
749 s->param = X509_VERIFY_PARAM_new();
750 if (s->param == NULL)
752 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
753 s->quiet_shutdown = ctx->quiet_shutdown;
755 s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
756 s->max_send_fragment = ctx->max_send_fragment;
757 s->split_send_fragment = ctx->split_send_fragment;
758 s->max_pipelines = ctx->max_pipelines;
759 if (s->max_pipelines > 1)
760 RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
761 if (ctx->default_read_buf_len > 0)
762 SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len);
767 s->ext.debug_arg = NULL;
768 s->ext.ticket_expected = 0;
769 s->ext.status_type = ctx->ext.status_type;
770 s->ext.status_expected = 0;
771 s->ext.ocsp.ids = NULL;
772 s->ext.ocsp.exts = NULL;
773 s->ext.ocsp.resp = NULL;
774 s->ext.ocsp.resp_len = 0;
776 s->session_ctx = ctx;
777 #ifndef OPENSSL_NO_EC
778 if (ctx->ext.ecpointformats) {
779 s->ext.ecpointformats =
780 OPENSSL_memdup(ctx->ext.ecpointformats,
781 ctx->ext.ecpointformats_len);
782 if (!s->ext.ecpointformats) {
783 s->ext.ecpointformats_len = 0;
786 s->ext.ecpointformats_len =
787 ctx->ext.ecpointformats_len;
789 if (ctx->ext.supportedgroups) {
790 s->ext.supportedgroups =
791 OPENSSL_memdup(ctx->ext.supportedgroups,
792 ctx->ext.supportedgroups_len
793 * sizeof(*ctx->ext.supportedgroups));
794 if (!s->ext.supportedgroups) {
795 s->ext.supportedgroups_len = 0;
798 s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
801 #ifndef OPENSSL_NO_NEXTPROTONEG
805 if (s->ctx->ext.alpn) {
806 s->ext.alpn = OPENSSL_malloc(s->ctx->ext.alpn_len);
807 if (s->ext.alpn == NULL) {
811 memcpy(s->ext.alpn, s->ctx->ext.alpn, s->ctx->ext.alpn_len);
812 s->ext.alpn_len = s->ctx->ext.alpn_len;
815 s->verified_chain = NULL;
816 s->verify_result = X509_V_OK;
818 s->default_passwd_callback = ctx->default_passwd_callback;
819 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
821 s->method = ctx->method;
823 s->key_update = SSL_KEY_UPDATE_NONE;
825 s->allow_early_data_cb = ctx->allow_early_data_cb;
826 s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
828 if (!s->method->ssl_new(s))
831 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
836 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data))
839 #ifndef OPENSSL_NO_PSK
840 s->psk_client_callback = ctx->psk_client_callback;
841 s->psk_server_callback = ctx->psk_server_callback;
843 s->psk_find_session_cb = ctx->psk_find_session_cb;
844 s->psk_use_session_cb = ctx->psk_use_session_cb;
848 #ifndef OPENSSL_NO_CT
849 if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback,
850 ctx->ct_validation_callback_arg))
857 SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
861 int SSL_is_dtls(const SSL *s)
863 return SSL_IS_DTLS(s) ? 1 : 0;
866 int SSL_up_ref(SSL *s)
870 if (CRYPTO_UP_REF(&s->references, &i, s->lock) <= 0)
873 REF_PRINT_COUNT("SSL", s);
874 REF_ASSERT_ISNT(i < 2);
875 return ((i > 1) ? 1 : 0);
878 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
879 unsigned int sid_ctx_len)
881 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
882 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
883 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
886 ctx->sid_ctx_length = sid_ctx_len;
887 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
892 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
893 unsigned int sid_ctx_len)
895 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
896 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
897 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
900 ssl->sid_ctx_length = sid_ctx_len;
901 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
906 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
908 CRYPTO_THREAD_write_lock(ctx->lock);
909 ctx->generate_session_id = cb;
910 CRYPTO_THREAD_unlock(ctx->lock);
914 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
916 CRYPTO_THREAD_write_lock(ssl->lock);
917 ssl->generate_session_id = cb;
918 CRYPTO_THREAD_unlock(ssl->lock);
922 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
926 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
927 * we can "construct" a session to give us the desired check - i.e. to
928 * find if there's a session in the hash table that would conflict with
929 * any new session built out of this id/id_len and the ssl_version in use
934 if (id_len > sizeof(r.session_id))
937 r.ssl_version = ssl->version;
938 r.session_id_length = id_len;
939 memcpy(r.session_id, id, id_len);
941 CRYPTO_THREAD_read_lock(ssl->session_ctx->lock);
942 p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r);
943 CRYPTO_THREAD_unlock(ssl->session_ctx->lock);
947 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
949 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
952 int SSL_set_purpose(SSL *s, int purpose)
954 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
957 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
959 return X509_VERIFY_PARAM_set_trust(s->param, trust);
962 int SSL_set_trust(SSL *s, int trust)
964 return X509_VERIFY_PARAM_set_trust(s->param, trust);
967 int SSL_set1_host(SSL *s, const char *hostname)
969 return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0);
972 int SSL_add1_host(SSL *s, const char *hostname)
974 return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0);
977 void SSL_set_hostflags(SSL *s, unsigned int flags)
979 X509_VERIFY_PARAM_set_hostflags(s->param, flags);
982 const char *SSL_get0_peername(SSL *s)
984 return X509_VERIFY_PARAM_get0_peername(s->param);
987 int SSL_CTX_dane_enable(SSL_CTX *ctx)
989 return dane_ctx_enable(&ctx->dane);
992 unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
994 unsigned long orig = ctx->dane.flags;
996 ctx->dane.flags |= flags;
1000 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
1002 unsigned long orig = ctx->dane.flags;
1004 ctx->dane.flags &= ~flags;
1008 int SSL_dane_enable(SSL *s, const char *basedomain)
1010 SSL_DANE *dane = &s->dane;
1012 if (s->ctx->dane.mdmax == 0) {
1013 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED);
1016 if (dane->trecs != NULL) {
1017 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED);
1022 * Default SNI name. This rejects empty names, while set1_host below
1023 * accepts them and disables host name checks. To avoid side-effects with
1024 * invalid input, set the SNI name first.
1026 if (s->ext.hostname == NULL) {
1027 if (!SSL_set_tlsext_host_name(s, basedomain)) {
1028 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1033 /* Primary RFC6125 reference identifier */
1034 if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) {
1035 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1041 dane->dctx = &s->ctx->dane;
1042 dane->trecs = sk_danetls_record_new_null();
1044 if (dane->trecs == NULL) {
1045 SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE);
1051 unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
1053 unsigned long orig = ssl->dane.flags;
1055 ssl->dane.flags |= flags;
1059 unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
1061 unsigned long orig = ssl->dane.flags;
1063 ssl->dane.flags &= ~flags;
1067 int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
1069 SSL_DANE *dane = &s->dane;
1071 if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK)
1075 *mcert = dane->mcert;
1077 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
1082 int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
1083 uint8_t *mtype, unsigned const char **data, size_t *dlen)
1085 SSL_DANE *dane = &s->dane;
1087 if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK)
1091 *usage = dane->mtlsa->usage;
1093 *selector = dane->mtlsa->selector;
1095 *mtype = dane->mtlsa->mtype;
1097 *data = dane->mtlsa->data;
1099 *dlen = dane->mtlsa->dlen;
1104 SSL_DANE *SSL_get0_dane(SSL *s)
1109 int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
1110 uint8_t mtype, unsigned const char *data, size_t dlen)
1112 return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen);
1115 int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
1118 return dane_mtype_set(&ctx->dane, md, mtype, ord);
1121 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
1123 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
1126 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
1128 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
1131 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
1136 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
1141 void SSL_certs_clear(SSL *s)
1143 ssl_cert_clear_certs(s->cert);
1146 void SSL_free(SSL *s)
1152 CRYPTO_DOWN_REF(&s->references, &i, s->lock);
1153 REF_PRINT_COUNT("SSL", s);
1156 REF_ASSERT_ISNT(i < 0);
1158 X509_VERIFY_PARAM_free(s->param);
1159 dane_final(&s->dane);
1160 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1162 /* Ignore return value */
1163 ssl_free_wbio_buffer(s);
1165 BIO_free_all(s->wbio);
1166 BIO_free_all(s->rbio);
1168 BUF_MEM_free(s->init_buf);
1170 /* add extra stuff */
1171 sk_SSL_CIPHER_free(s->cipher_list);
1172 sk_SSL_CIPHER_free(s->cipher_list_by_id);
1173 sk_SSL_CIPHER_free(s->tls13_ciphersuites);
1174 sk_SSL_CIPHER_free(s->peer_ciphers);
1176 /* Make the next call work :-) */
1177 if (s->session != NULL) {
1178 ssl_clear_bad_session(s);
1179 SSL_SESSION_free(s->session);
1181 SSL_SESSION_free(s->psksession);
1182 OPENSSL_free(s->psksession_id);
1186 ssl_cert_free(s->cert);
1187 OPENSSL_free(s->shared_sigalgs);
1188 /* Free up if allocated */
1190 OPENSSL_free(s->ext.hostname);
1191 SSL_CTX_free(s->session_ctx);
1192 #ifndef OPENSSL_NO_EC
1193 OPENSSL_free(s->ext.ecpointformats);
1194 OPENSSL_free(s->ext.peer_ecpointformats);
1195 OPENSSL_free(s->ext.supportedgroups);
1196 OPENSSL_free(s->ext.peer_supportedgroups);
1197 #endif /* OPENSSL_NO_EC */
1198 sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
1199 #ifndef OPENSSL_NO_OCSP
1200 sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
1202 #ifndef OPENSSL_NO_CT
1203 SCT_LIST_free(s->scts);
1204 OPENSSL_free(s->ext.scts);
1206 OPENSSL_free(s->ext.ocsp.resp);
1207 OPENSSL_free(s->ext.alpn);
1208 OPENSSL_free(s->ext.tls13_cookie);
1209 if (s->clienthello != NULL)
1210 OPENSSL_free(s->clienthello->pre_proc_exts);
1211 OPENSSL_free(s->clienthello);
1212 OPENSSL_free(s->pha_context);
1213 EVP_MD_CTX_free(s->pha_dgst);
1215 sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
1216 sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
1218 sk_X509_pop_free(s->verified_chain, X509_free);
1220 if (s->method != NULL)
1221 s->method->ssl_free(s);
1223 RECORD_LAYER_release(&s->rlayer);
1225 SSL_CTX_free(s->ctx);
1227 ASYNC_WAIT_CTX_free(s->waitctx);
1229 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1230 OPENSSL_free(s->ext.npn);
1233 #ifndef OPENSSL_NO_SRTP
1234 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
1237 CRYPTO_THREAD_lock_free(s->lock);
1242 void SSL_set0_rbio(SSL *s, BIO *rbio)
1244 BIO_free_all(s->rbio);
1248 void SSL_set0_wbio(SSL *s, BIO *wbio)
1251 * If the output buffering BIO is still in place, remove it
1253 if (s->bbio != NULL)
1254 s->wbio = BIO_pop(s->wbio);
1256 BIO_free_all(s->wbio);
1259 /* Re-attach |bbio| to the new |wbio|. */
1260 if (s->bbio != NULL)
1261 s->wbio = BIO_push(s->bbio, s->wbio);
1264 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1267 * For historical reasons, this function has many different cases in
1268 * ownership handling.
1271 /* If nothing has changed, do nothing */
1272 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1276 * If the two arguments are equal then one fewer reference is granted by the
1277 * caller than we want to take
1279 if (rbio != NULL && rbio == wbio)
1283 * If only the wbio is changed only adopt one reference.
1285 if (rbio == SSL_get_rbio(s)) {
1286 SSL_set0_wbio(s, wbio);
1290 * There is an asymmetry here for historical reasons. If only the rbio is
1291 * changed AND the rbio and wbio were originally different, then we only
1292 * adopt one reference.
1294 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1295 SSL_set0_rbio(s, rbio);
1299 /* Otherwise, adopt both references. */
1300 SSL_set0_rbio(s, rbio);
1301 SSL_set0_wbio(s, wbio);
1304 BIO *SSL_get_rbio(const SSL *s)
1309 BIO *SSL_get_wbio(const SSL *s)
1311 if (s->bbio != NULL) {
1313 * If |bbio| is active, the true caller-configured BIO is its
1316 return BIO_next(s->bbio);
1321 int SSL_get_fd(const SSL *s)
1323 return SSL_get_rfd(s);
1326 int SSL_get_rfd(const SSL *s)
1331 b = SSL_get_rbio(s);
1332 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1334 BIO_get_fd(r, &ret);
1338 int SSL_get_wfd(const SSL *s)
1343 b = SSL_get_wbio(s);
1344 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1346 BIO_get_fd(r, &ret);
1350 #ifndef OPENSSL_NO_SOCK
1351 int SSL_set_fd(SSL *s, int fd)
1356 bio = BIO_new(BIO_s_socket());
1359 SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
1362 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1363 SSL_set_bio(s, bio, bio);
1369 int SSL_set_wfd(SSL *s, int fd)
1371 BIO *rbio = SSL_get_rbio(s);
1373 if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET
1374 || (int)BIO_get_fd(rbio, NULL) != fd) {
1375 BIO *bio = BIO_new(BIO_s_socket());
1378 SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
1381 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1382 SSL_set0_wbio(s, bio);
1385 SSL_set0_wbio(s, rbio);
1390 int SSL_set_rfd(SSL *s, int fd)
1392 BIO *wbio = SSL_get_wbio(s);
1394 if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET
1395 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
1396 BIO *bio = BIO_new(BIO_s_socket());
1399 SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
1402 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1403 SSL_set0_rbio(s, bio);
1406 SSL_set0_rbio(s, wbio);
1413 /* return length of latest Finished message we sent, copy to 'buf' */
1414 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
1418 if (s->s3 != NULL) {
1419 ret = s->s3->tmp.finish_md_len;
1422 memcpy(buf, s->s3->tmp.finish_md, count);
1427 /* return length of latest Finished message we expected, copy to 'buf' */
1428 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
1432 if (s->s3 != NULL) {
1433 ret = s->s3->tmp.peer_finish_md_len;
1436 memcpy(buf, s->s3->tmp.peer_finish_md, count);
1441 int SSL_get_verify_mode(const SSL *s)
1443 return s->verify_mode;
1446 int SSL_get_verify_depth(const SSL *s)
1448 return X509_VERIFY_PARAM_get_depth(s->param);
1451 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
1452 return s->verify_callback;
1455 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
1457 return ctx->verify_mode;
1460 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
1462 return X509_VERIFY_PARAM_get_depth(ctx->param);
1465 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
1466 return ctx->default_verify_callback;
1469 void SSL_set_verify(SSL *s, int mode,
1470 int (*callback) (int ok, X509_STORE_CTX *ctx))
1472 s->verify_mode = mode;
1473 if (callback != NULL)
1474 s->verify_callback = callback;
1477 void SSL_set_verify_depth(SSL *s, int depth)
1479 X509_VERIFY_PARAM_set_depth(s->param, depth);
1482 void SSL_set_read_ahead(SSL *s, int yes)
1484 RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
1487 int SSL_get_read_ahead(const SSL *s)
1489 return RECORD_LAYER_get_read_ahead(&s->rlayer);
1492 int SSL_pending(const SSL *s)
1494 size_t pending = s->method->ssl_pending(s);
1497 * SSL_pending cannot work properly if read-ahead is enabled
1498 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1499 * impossible to fix since SSL_pending cannot report errors that may be
1500 * observed while scanning the new data. (Note that SSL_pending() is
1501 * often used as a boolean value, so we'd better not return -1.)
1503 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1504 * we just return INT_MAX.
1506 return pending < INT_MAX ? (int)pending : INT_MAX;
1509 int SSL_has_pending(const SSL *s)
1512 * Similar to SSL_pending() but returns a 1 to indicate that we have
1513 * unprocessed data available or 0 otherwise (as opposed to the number of
1514 * bytes available). Unlike SSL_pending() this will take into account
1515 * read_ahead data. A 1 return simply indicates that we have unprocessed
1516 * data. That data may not result in any application data, or we may fail
1517 * to parse the records for some reason.
1519 if (RECORD_LAYER_processed_read_pending(&s->rlayer))
1522 return RECORD_LAYER_read_pending(&s->rlayer);
1525 X509 *SSL_get_peer_certificate(const SSL *s)
1529 if ((s == NULL) || (s->session == NULL))
1532 r = s->session->peer;
1542 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
1546 if ((s == NULL) || (s->session == NULL))
1549 r = s->session->peer_chain;
1552 * If we are a client, cert_chain includes the peer's own certificate; if
1553 * we are a server, it does not.
1560 * Now in theory, since the calling process own 't' it should be safe to
1561 * modify. We need to be able to read f without being hassled
1563 int SSL_copy_session_id(SSL *t, const SSL *f)
1566 /* Do we need to to SSL locking? */
1567 if (!SSL_set_session(t, SSL_get_session(f))) {
1572 * what if we are setup for one protocol version but want to talk another
1574 if (t->method != f->method) {
1575 t->method->ssl_free(t);
1576 t->method = f->method;
1577 if (t->method->ssl_new(t) == 0)
1581 CRYPTO_UP_REF(&f->cert->references, &i, f->cert->lock);
1582 ssl_cert_free(t->cert);
1584 if (!SSL_set_session_id_context(t, f->sid_ctx, (int)f->sid_ctx_length)) {
1591 /* Fix this so it checks all the valid key/cert options */
1592 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
1594 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
1595 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
1598 if (ctx->cert->key->privatekey == NULL) {
1599 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1602 return X509_check_private_key
1603 (ctx->cert->key->x509, ctx->cert->key->privatekey);
1606 /* Fix this function so that it takes an optional type parameter */
1607 int SSL_check_private_key(const SSL *ssl)
1610 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
1613 if (ssl->cert->key->x509 == NULL) {
1614 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
1617 if (ssl->cert->key->privatekey == NULL) {
1618 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1621 return X509_check_private_key(ssl->cert->key->x509,
1622 ssl->cert->key->privatekey);
1625 int SSL_waiting_for_async(SSL *s)
1633 int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
1635 ASYNC_WAIT_CTX *ctx = s->waitctx;
1639 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
1642 int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
1643 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
1645 ASYNC_WAIT_CTX *ctx = s->waitctx;
1649 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
1653 int SSL_accept(SSL *s)
1655 if (s->handshake_func == NULL) {
1656 /* Not properly initialized yet */
1657 SSL_set_accept_state(s);
1660 return SSL_do_handshake(s);
1663 int SSL_connect(SSL *s)
1665 if (s->handshake_func == NULL) {
1666 /* Not properly initialized yet */
1667 SSL_set_connect_state(s);
1670 return SSL_do_handshake(s);
1673 long SSL_get_default_timeout(const SSL *s)
1675 return s->method->get_timeout();
1678 static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
1679 int (*func) (void *))
1682 if (s->waitctx == NULL) {
1683 s->waitctx = ASYNC_WAIT_CTX_new();
1684 if (s->waitctx == NULL)
1687 switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args,
1688 sizeof(struct ssl_async_args))) {
1690 s->rwstate = SSL_NOTHING;
1691 SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC);
1694 s->rwstate = SSL_ASYNC_PAUSED;
1697 s->rwstate = SSL_ASYNC_NO_JOBS;
1703 s->rwstate = SSL_NOTHING;
1704 SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR);
1705 /* Shouldn't happen */
1710 static int ssl_io_intern(void *vargs)
1712 struct ssl_async_args *args;
1717 args = (struct ssl_async_args *)vargs;
1721 switch (args->type) {
1723 return args->f.func_read(s, buf, num, &s->asyncrw);
1725 return args->f.func_write(s, buf, num, &s->asyncrw);
1727 return args->f.func_other(s);
1732 int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
1734 if (s->handshake_func == NULL) {
1735 SSLerr(SSL_F_SSL_READ_INTERNAL, SSL_R_UNINITIALIZED);
1739 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1740 s->rwstate = SSL_NOTHING;
1744 if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
1745 || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
1746 SSLerr(SSL_F_SSL_READ_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1750 * If we are a client and haven't received the ServerHello etc then we
1753 ossl_statem_check_finish_init(s, 0);
1755 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1756 struct ssl_async_args args;
1762 args.type = READFUNC;
1763 args.f.func_read = s->method->ssl_read;
1765 ret = ssl_start_async_job(s, &args, ssl_io_intern);
1766 *readbytes = s->asyncrw;
1769 return s->method->ssl_read(s, buf, num, readbytes);
1773 int SSL_read(SSL *s, void *buf, int num)
1779 SSLerr(SSL_F_SSL_READ, SSL_R_BAD_LENGTH);
1783 ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
1786 * The cast is safe here because ret should be <= INT_MAX because num is
1790 ret = (int)readbytes;
1795 int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
1797 int ret = ssl_read_internal(s, buf, num, readbytes);
1804 int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
1809 SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1810 return SSL_READ_EARLY_DATA_ERROR;
1813 switch (s->early_data_state) {
1814 case SSL_EARLY_DATA_NONE:
1815 if (!SSL_in_before(s)) {
1816 SSLerr(SSL_F_SSL_READ_EARLY_DATA,
1817 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1818 return SSL_READ_EARLY_DATA_ERROR;
1822 case SSL_EARLY_DATA_ACCEPT_RETRY:
1823 s->early_data_state = SSL_EARLY_DATA_ACCEPTING;
1824 ret = SSL_accept(s);
1827 s->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
1828 return SSL_READ_EARLY_DATA_ERROR;
1832 case SSL_EARLY_DATA_READ_RETRY:
1833 if (s->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
1834 s->early_data_state = SSL_EARLY_DATA_READING;
1835 ret = SSL_read_ex(s, buf, num, readbytes);
1837 * State machine will update early_data_state to
1838 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1841 if (ret > 0 || (ret <= 0 && s->early_data_state
1842 != SSL_EARLY_DATA_FINISHED_READING)) {
1843 s->early_data_state = SSL_EARLY_DATA_READ_RETRY;
1844 return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
1845 : SSL_READ_EARLY_DATA_ERROR;
1848 s->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
1851 return SSL_READ_EARLY_DATA_FINISH;
1854 SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1855 return SSL_READ_EARLY_DATA_ERROR;
1859 int SSL_get_early_data_status(const SSL *s)
1861 return s->ext.early_data;
1864 static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
1866 if (s->handshake_func == NULL) {
1867 SSLerr(SSL_F_SSL_PEEK_INTERNAL, SSL_R_UNINITIALIZED);
1871 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1874 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1875 struct ssl_async_args args;
1881 args.type = READFUNC;
1882 args.f.func_read = s->method->ssl_peek;
1884 ret = ssl_start_async_job(s, &args, ssl_io_intern);
1885 *readbytes = s->asyncrw;
1888 return s->method->ssl_peek(s, buf, num, readbytes);
1892 int SSL_peek(SSL *s, void *buf, int num)
1898 SSLerr(SSL_F_SSL_PEEK, SSL_R_BAD_LENGTH);
1902 ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
1905 * The cast is safe here because ret should be <= INT_MAX because num is
1909 ret = (int)readbytes;
1915 int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
1917 int ret = ssl_peek_internal(s, buf, num, readbytes);
1924 int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written)
1926 if (s->handshake_func == NULL) {
1927 SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_UNINITIALIZED);
1931 if (s->shutdown & SSL_SENT_SHUTDOWN) {
1932 s->rwstate = SSL_NOTHING;
1933 SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_PROTOCOL_IS_SHUTDOWN);
1937 if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
1938 || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
1939 || s->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
1940 SSLerr(SSL_F_SSL_WRITE_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1943 /* If we are a client and haven't sent the Finished we better do that */
1944 ossl_statem_check_finish_init(s, 1);
1946 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1948 struct ssl_async_args args;
1951 args.buf = (void *)buf;
1953 args.type = WRITEFUNC;
1954 args.f.func_write = s->method->ssl_write;
1956 ret = ssl_start_async_job(s, &args, ssl_io_intern);
1957 *written = s->asyncrw;
1960 return s->method->ssl_write(s, buf, num, written);
1964 int SSL_write(SSL *s, const void *buf, int num)
1970 SSLerr(SSL_F_SSL_WRITE, SSL_R_BAD_LENGTH);
1974 ret = ssl_write_internal(s, buf, (size_t)num, &written);
1977 * The cast is safe here because ret should be <= INT_MAX because num is
1986 int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
1988 int ret = ssl_write_internal(s, buf, num, written);
1995 int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
1997 int ret, early_data_state;
1999 uint32_t partialwrite;
2001 switch (s->early_data_state) {
2002 case SSL_EARLY_DATA_NONE:
2004 || !SSL_in_before(s)
2005 || ((s->session == NULL || s->session->ext.max_early_data == 0)
2006 && (s->psk_use_session_cb == NULL))) {
2007 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA,
2008 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2013 case SSL_EARLY_DATA_CONNECT_RETRY:
2014 s->early_data_state = SSL_EARLY_DATA_CONNECTING;
2015 ret = SSL_connect(s);
2018 s->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
2023 case SSL_EARLY_DATA_WRITE_RETRY:
2024 s->early_data_state = SSL_EARLY_DATA_WRITING;
2026 * We disable partial write for early data because we don't keep track
2027 * of how many bytes we've written between the SSL_write_ex() call and
2028 * the flush if the flush needs to be retried)
2030 partialwrite = s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
2031 s->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
2032 ret = SSL_write_ex(s, buf, num, &writtmp);
2033 s->mode |= partialwrite;
2035 s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2038 s->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
2041 case SSL_EARLY_DATA_WRITE_FLUSH:
2042 /* The buffering BIO is still in place so we need to flush it */
2043 if (statem_flush(s) != 1)
2046 s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2049 case SSL_EARLY_DATA_FINISHED_READING:
2050 case SSL_EARLY_DATA_READ_RETRY:
2051 early_data_state = s->early_data_state;
2052 /* We are a server writing to an unauthenticated client */
2053 s->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
2054 ret = SSL_write_ex(s, buf, num, written);
2055 /* The buffering BIO is still in place */
2057 (void)BIO_flush(s->wbio);
2058 s->early_data_state = early_data_state;
2062 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2067 int SSL_shutdown(SSL *s)
2070 * Note that this function behaves differently from what one might
2071 * expect. Return values are 0 for no success (yet), 1 for success; but
2072 * calling it once is usually not enough, even if blocking I/O is used
2073 * (see ssl3_shutdown).
2076 if (s->handshake_func == NULL) {
2077 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
2081 if (!SSL_in_init(s)) {
2082 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2083 struct ssl_async_args args;
2086 args.type = OTHERFUNC;
2087 args.f.func_other = s->method->ssl_shutdown;
2089 return ssl_start_async_job(s, &args, ssl_io_intern);
2091 return s->method->ssl_shutdown(s);
2094 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT);
2099 int SSL_key_update(SSL *s, int updatetype)
2102 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
2103 * negotiated, and that it is appropriate to call SSL_key_update() instead
2104 * of SSL_renegotiate().
2106 if (!SSL_IS_TLS13(s)) {
2107 SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_WRONG_SSL_VERSION);
2111 if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
2112 && updatetype != SSL_KEY_UPDATE_REQUESTED) {
2113 SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_INVALID_KEY_UPDATE_TYPE);
2117 if (!SSL_is_init_finished(s)) {
2118 SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_STILL_IN_INIT);
2122 if (RECORD_LAYER_write_pending(&s->rlayer)) {
2123 SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_BAD_WRITE_RETRY);
2127 ossl_statem_set_in_init(s, 1);
2128 s->key_update = updatetype;
2132 int SSL_get_key_update_type(const SSL *s)
2134 return s->key_update;
2137 int SSL_renegotiate(SSL *s)
2139 if (SSL_IS_TLS13(s)) {
2140 SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_WRONG_SSL_VERSION);
2144 if ((s->options & SSL_OP_NO_RENEGOTIATION)) {
2145 SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_NO_RENEGOTIATION);
2152 return s->method->ssl_renegotiate(s);
2155 int SSL_renegotiate_abbreviated(SSL *s)
2157 if (SSL_IS_TLS13(s)) {
2158 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_WRONG_SSL_VERSION);
2162 if ((s->options & SSL_OP_NO_RENEGOTIATION)) {
2163 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_NO_RENEGOTIATION);
2170 return s->method->ssl_renegotiate(s);
2173 int SSL_renegotiate_pending(const SSL *s)
2176 * becomes true when negotiation is requested; false again once a
2177 * handshake has finished
2179 return (s->renegotiate != 0);
2182 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
2187 case SSL_CTRL_GET_READ_AHEAD:
2188 return RECORD_LAYER_get_read_ahead(&s->rlayer);
2189 case SSL_CTRL_SET_READ_AHEAD:
2190 l = RECORD_LAYER_get_read_ahead(&s->rlayer);
2191 RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
2194 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
2195 s->msg_callback_arg = parg;
2199 return (s->mode |= larg);
2200 case SSL_CTRL_CLEAR_MODE:
2201 return (s->mode &= ~larg);
2202 case SSL_CTRL_GET_MAX_CERT_LIST:
2203 return (long)s->max_cert_list;
2204 case SSL_CTRL_SET_MAX_CERT_LIST:
2207 l = (long)s->max_cert_list;
2208 s->max_cert_list = (size_t)larg;
2210 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2211 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2213 s->max_send_fragment = larg;
2214 if (s->max_send_fragment < s->split_send_fragment)
2215 s->split_send_fragment = s->max_send_fragment;
2217 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2218 if ((size_t)larg > s->max_send_fragment || larg == 0)
2220 s->split_send_fragment = larg;
2222 case SSL_CTRL_SET_MAX_PIPELINES:
2223 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2225 s->max_pipelines = larg;
2227 RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
2229 case SSL_CTRL_GET_RI_SUPPORT:
2231 return s->s3->send_connection_binding;
2234 case SSL_CTRL_CERT_FLAGS:
2235 return (s->cert->cert_flags |= larg);
2236 case SSL_CTRL_CLEAR_CERT_FLAGS:
2237 return (s->cert->cert_flags &= ~larg);
2239 case SSL_CTRL_GET_RAW_CIPHERLIST:
2241 if (s->s3->tmp.ciphers_raw == NULL)
2243 *(unsigned char **)parg = s->s3->tmp.ciphers_raw;
2244 return (int)s->s3->tmp.ciphers_rawlen;
2246 return TLS_CIPHER_LEN;
2248 case SSL_CTRL_GET_EXTMS_SUPPORT:
2249 if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s))
2251 if (s->session->flags & SSL_SESS_FLAG_EXTMS)
2255 case SSL_CTRL_SET_MIN_PROTO_VERSION:
2256 return ssl_check_allowed_versions(larg, s->max_proto_version)
2257 && ssl_set_version_bound(s->ctx->method->version, (int)larg,
2258 &s->min_proto_version);
2259 case SSL_CTRL_GET_MIN_PROTO_VERSION:
2260 return s->min_proto_version;
2261 case SSL_CTRL_SET_MAX_PROTO_VERSION:
2262 return ssl_check_allowed_versions(s->min_proto_version, larg)
2263 && ssl_set_version_bound(s->ctx->method->version, (int)larg,
2264 &s->max_proto_version);
2265 case SSL_CTRL_GET_MAX_PROTO_VERSION:
2266 return s->max_proto_version;
2268 return s->method->ssl_ctrl(s, cmd, larg, parg);
2272 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
2275 case SSL_CTRL_SET_MSG_CALLBACK:
2276 s->msg_callback = (void (*)
2277 (int write_p, int version, int content_type,
2278 const void *buf, size_t len, SSL *ssl,
2283 return s->method->ssl_callback_ctrl(s, cmd, fp);
2287 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
2289 return ctx->sessions;
2292 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
2295 /* For some cases with ctx == NULL perform syntax checks */
2298 #ifndef OPENSSL_NO_EC
2299 case SSL_CTRL_SET_GROUPS_LIST:
2300 return tls1_set_groups_list(NULL, NULL, parg);
2302 case SSL_CTRL_SET_SIGALGS_LIST:
2303 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
2304 return tls1_set_sigalgs_list(NULL, parg, 0);
2311 case SSL_CTRL_GET_READ_AHEAD:
2312 return ctx->read_ahead;
2313 case SSL_CTRL_SET_READ_AHEAD:
2314 l = ctx->read_ahead;
2315 ctx->read_ahead = larg;
2318 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
2319 ctx->msg_callback_arg = parg;
2322 case SSL_CTRL_GET_MAX_CERT_LIST:
2323 return (long)ctx->max_cert_list;
2324 case SSL_CTRL_SET_MAX_CERT_LIST:
2327 l = (long)ctx->max_cert_list;
2328 ctx->max_cert_list = (size_t)larg;
2331 case SSL_CTRL_SET_SESS_CACHE_SIZE:
2334 l = (long)ctx->session_cache_size;
2335 ctx->session_cache_size = (size_t)larg;
2337 case SSL_CTRL_GET_SESS_CACHE_SIZE:
2338 return (long)ctx->session_cache_size;
2339 case SSL_CTRL_SET_SESS_CACHE_MODE:
2340 l = ctx->session_cache_mode;
2341 ctx->session_cache_mode = larg;
2343 case SSL_CTRL_GET_SESS_CACHE_MODE:
2344 return ctx->session_cache_mode;
2346 case SSL_CTRL_SESS_NUMBER:
2347 return lh_SSL_SESSION_num_items(ctx->sessions);
2348 case SSL_CTRL_SESS_CONNECT:
2349 return tsan_load(&ctx->stats.sess_connect);
2350 case SSL_CTRL_SESS_CONNECT_GOOD:
2351 return tsan_load(&ctx->stats.sess_connect_good);
2352 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
2353 return tsan_load(&ctx->stats.sess_connect_renegotiate);
2354 case SSL_CTRL_SESS_ACCEPT:
2355 return tsan_load(&ctx->stats.sess_accept);
2356 case SSL_CTRL_SESS_ACCEPT_GOOD:
2357 return tsan_load(&ctx->stats.sess_accept_good);
2358 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
2359 return tsan_load(&ctx->stats.sess_accept_renegotiate);
2360 case SSL_CTRL_SESS_HIT:
2361 return tsan_load(&ctx->stats.sess_hit);
2362 case SSL_CTRL_SESS_CB_HIT:
2363 return tsan_load(&ctx->stats.sess_cb_hit);
2364 case SSL_CTRL_SESS_MISSES:
2365 return tsan_load(&ctx->stats.sess_miss);
2366 case SSL_CTRL_SESS_TIMEOUTS:
2367 return tsan_load(&ctx->stats.sess_timeout);
2368 case SSL_CTRL_SESS_CACHE_FULL:
2369 return tsan_load(&ctx->stats.sess_cache_full);
2371 return (ctx->mode |= larg);
2372 case SSL_CTRL_CLEAR_MODE:
2373 return (ctx->mode &= ~larg);
2374 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2375 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2377 ctx->max_send_fragment = larg;
2378 if (ctx->max_send_fragment < ctx->split_send_fragment)
2379 ctx->split_send_fragment = ctx->max_send_fragment;
2381 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2382 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
2384 ctx->split_send_fragment = larg;
2386 case SSL_CTRL_SET_MAX_PIPELINES:
2387 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2389 ctx->max_pipelines = larg;
2391 case SSL_CTRL_CERT_FLAGS:
2392 return (ctx->cert->cert_flags |= larg);
2393 case SSL_CTRL_CLEAR_CERT_FLAGS:
2394 return (ctx->cert->cert_flags &= ~larg);
2395 case SSL_CTRL_SET_MIN_PROTO_VERSION:
2396 return ssl_check_allowed_versions(larg, ctx->max_proto_version)
2397 && ssl_set_version_bound(ctx->method->version, (int)larg,
2398 &ctx->min_proto_version);
2399 case SSL_CTRL_GET_MIN_PROTO_VERSION:
2400 return ctx->min_proto_version;
2401 case SSL_CTRL_SET_MAX_PROTO_VERSION:
2402 return ssl_check_allowed_versions(ctx->min_proto_version, larg)
2403 && ssl_set_version_bound(ctx->method->version, (int)larg,
2404 &ctx->max_proto_version);
2405 case SSL_CTRL_GET_MAX_PROTO_VERSION:
2406 return ctx->max_proto_version;
2408 return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
2412 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
2415 case SSL_CTRL_SET_MSG_CALLBACK:
2416 ctx->msg_callback = (void (*)
2417 (int write_p, int version, int content_type,
2418 const void *buf, size_t len, SSL *ssl,
2423 return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
2427 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
2436 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
2437 const SSL_CIPHER *const *bp)
2439 if ((*ap)->id > (*bp)->id)
2441 if ((*ap)->id < (*bp)->id)
2446 /** return a STACK of the ciphers available for the SSL and in order of
2448 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
2451 if (s->cipher_list != NULL) {
2452 return s->cipher_list;
2453 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
2454 return s->ctx->cipher_list;
2460 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
2462 if ((s == NULL) || !s->server)
2464 return s->peer_ciphers;
2467 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
2469 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
2472 ciphers = SSL_get_ciphers(s);
2475 if (!ssl_set_client_disabled(s))
2477 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
2478 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
2479 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
2481 sk = sk_SSL_CIPHER_new_null();
2484 if (!sk_SSL_CIPHER_push(sk, c)) {
2485 sk_SSL_CIPHER_free(sk);
2493 /** return a STACK of the ciphers available for the SSL and in order of
2495 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
2498 if (s->cipher_list_by_id != NULL) {
2499 return s->cipher_list_by_id;
2500 } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
2501 return s->ctx->cipher_list_by_id;
2507 /** The old interface to get the same thing as SSL_get_ciphers() */
2508 const char *SSL_get_cipher_list(const SSL *s, int n)
2510 const SSL_CIPHER *c;
2511 STACK_OF(SSL_CIPHER) *sk;
2515 sk = SSL_get_ciphers(s);
2516 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
2518 c = sk_SSL_CIPHER_value(sk, n);
2524 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2526 STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
2529 return ctx->cipher_list;
2534 * Distinguish between ciphers controlled by set_ciphersuite() and
2535 * set_cipher_list() when counting.
2537 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
2540 const SSL_CIPHER *c;
2544 for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
2545 c = sk_SSL_CIPHER_value(sk, i);
2546 if (c->min_tls >= TLS1_3_VERSION)
2553 /** specify the ciphers to be used by default by the SSL_CTX */
2554 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
2556 STACK_OF(SSL_CIPHER) *sk;
2558 sk = ssl_create_cipher_list(ctx->method, ctx->tls13_ciphersuites,
2559 &ctx->cipher_list, &ctx->cipher_list_by_id, str,
2562 * ssl_create_cipher_list may return an empty stack if it was unable to
2563 * find a cipher matching the given rule string (for example if the rule
2564 * string specifies a cipher which has been disabled). This is not an
2565 * error as far as ssl_create_cipher_list is concerned, and hence
2566 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2570 else if (cipher_list_tls12_num(sk) == 0) {
2571 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
2577 /** specify the ciphers to be used by the SSL */
2578 int SSL_set_cipher_list(SSL *s, const char *str)
2580 STACK_OF(SSL_CIPHER) *sk;
2582 sk = ssl_create_cipher_list(s->ctx->method, s->tls13_ciphersuites,
2583 &s->cipher_list, &s->cipher_list_by_id, str,
2585 /* see comment in SSL_CTX_set_cipher_list */
2588 else if (cipher_list_tls12_num(sk) == 0) {
2589 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
2595 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
2598 STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
2599 const SSL_CIPHER *c;
2603 || s->peer_ciphers == NULL
2608 clntsk = s->peer_ciphers;
2609 srvrsk = SSL_get_ciphers(s);
2610 if (clntsk == NULL || srvrsk == NULL)
2613 if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
2616 for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
2619 c = sk_SSL_CIPHER_value(clntsk, i);
2620 if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
2623 n = strlen(c->name);
2640 * Return the requested servername (SNI) value. Note that the behaviour varies
2642 * - whether this is called by the client or the server,
2643 * - if we are before or during/after the handshake,
2644 * - if a resumption or normal handshake is being attempted/has occurred
2645 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
2647 * Note that only the host_name type is defined (RFC 3546).
2649 const char *SSL_get_servername(const SSL *s, const int type)
2652 * If we don't know if we are the client or the server yet then we assume
2655 int server = s->handshake_func == NULL ? 0 : s->server;
2656 if (type != TLSEXT_NAMETYPE_host_name)
2662 * In TLSv1.3 on the server SNI is not associated with the session
2663 * but in TLSv1.2 or below it is.
2665 * Before the handshake:
2668 * During/after the handshake (TLSv1.2 or below resumption occurred):
2669 * - If a servername was accepted by the server in the original
2670 * handshake then it will return that servername, or NULL otherwise.
2672 * During/after the handshake (TLSv1.2 or below resumption did not occur):
2673 * - The function will return the servername requested by the client in
2674 * this handshake or NULL if none was requested.
2676 if (s->hit && !SSL_IS_TLS13(s))
2677 return s->session->ext.hostname;
2682 * Before the handshake:
2683 * - If a servername has been set via a call to
2684 * SSL_set_tlsext_host_name() then it will return that servername
2685 * - If one has not been set, but a TLSv1.2 resumption is being
2686 * attempted and the session from the original handshake had a
2687 * servername accepted by the server then it will return that
2689 * - Otherwise it returns NULL
2691 * During/after the handshake (TLSv1.2 or below resumption occurred):
2692 * - If the session from the original handshake had a servername accepted
2693 * by the server then it will return that servername.
2694 * - Otherwise it returns the servername set via
2695 * SSL_set_tlsext_host_name() (or NULL if it was not called).
2697 * During/after the handshake (TLSv1.2 or below resumption did not occur):
2698 * - It will return the servername set via SSL_set_tlsext_host_name()
2699 * (or NULL if it was not called).
2701 if (SSL_in_before(s)) {
2702 if (s->ext.hostname == NULL
2703 && s->session != NULL
2704 && s->session->ssl_version != TLS1_3_VERSION)
2705 return s->session->ext.hostname;
2707 if (!SSL_IS_TLS13(s) && s->hit && s->session->ext.hostname != NULL)
2708 return s->session->ext.hostname;
2712 return s->ext.hostname;
2715 int SSL_get_servername_type(const SSL *s)
2717 if (SSL_get_servername(s, TLSEXT_NAMETYPE_host_name) != NULL)
2718 return TLSEXT_NAMETYPE_host_name;
2723 * SSL_select_next_proto implements the standard protocol selection. It is
2724 * expected that this function is called from the callback set by
2725 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2726 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2727 * not included in the length. A byte string of length 0 is invalid. No byte
2728 * string may be truncated. The current, but experimental algorithm for
2729 * selecting the protocol is: 1) If the server doesn't support NPN then this
2730 * is indicated to the callback. In this case, the client application has to
2731 * abort the connection or have a default application level protocol. 2) If
2732 * the server supports NPN, but advertises an empty list then the client
2733 * selects the first protocol in its list, but indicates via the API that this
2734 * fallback case was enacted. 3) Otherwise, the client finds the first
2735 * protocol in the server's list that it supports and selects this protocol.
2736 * This is because it's assumed that the server has better information about
2737 * which protocol a client should use. 4) If the client doesn't support any
2738 * of the server's advertised protocols, then this is treated the same as
2739 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2740 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2742 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
2743 const unsigned char *server,
2744 unsigned int server_len,
2745 const unsigned char *client, unsigned int client_len)
2748 const unsigned char *result;
2749 int status = OPENSSL_NPN_UNSUPPORTED;
2752 * For each protocol in server preference order, see if we support it.
2754 for (i = 0; i < server_len;) {
2755 for (j = 0; j < client_len;) {
2756 if (server[i] == client[j] &&
2757 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
2758 /* We found a match */
2759 result = &server[i];
2760 status = OPENSSL_NPN_NEGOTIATED;
2770 /* There's no overlap between our protocols and the server's list. */
2772 status = OPENSSL_NPN_NO_OVERLAP;
2775 *out = (unsigned char *)result + 1;
2776 *outlen = result[0];
2780 #ifndef OPENSSL_NO_NEXTPROTONEG
2782 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2783 * client's requested protocol for this connection and returns 0. If the
2784 * client didn't request any protocol, then *data is set to NULL. Note that
2785 * the client can request any protocol it chooses. The value returned from
2786 * this function need not be a member of the list of supported protocols
2787 * provided by the callback.
2789 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
2796 *len = (unsigned int)s->ext.npn_len;
2801 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2802 * a TLS server needs a list of supported protocols for Next Protocol
2803 * Negotiation. The returned list must be in wire format. The list is
2804 * returned by setting |out| to point to it and |outlen| to its length. This
2805 * memory will not be modified, but one should assume that the SSL* keeps a
2806 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2807 * wishes to advertise. Otherwise, no such extension will be included in the
2810 void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
2811 SSL_CTX_npn_advertised_cb_func cb,
2814 ctx->ext.npn_advertised_cb = cb;
2815 ctx->ext.npn_advertised_cb_arg = arg;
2819 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2820 * client needs to select a protocol from the server's provided list. |out|
2821 * must be set to point to the selected protocol (which may be within |in|).
2822 * The length of the protocol name must be written into |outlen|. The
2823 * server's advertised protocols are provided in |in| and |inlen|. The
2824 * callback can assume that |in| is syntactically valid. The client must
2825 * select a protocol. It is fatal to the connection if this callback returns
2826 * a value other than SSL_TLSEXT_ERR_OK.
2828 void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
2829 SSL_CTX_npn_select_cb_func cb,
2832 ctx->ext.npn_select_cb = cb;
2833 ctx->ext.npn_select_cb_arg = arg;
2837 static int alpn_value_ok(const unsigned char *protos, unsigned int protos_len)
2841 if (protos_len < 2 || protos == NULL)
2844 for (idx = 0; idx < protos_len; idx += protos[idx] + 1) {
2845 if (protos[idx] == 0)
2848 return idx == protos_len;
2851 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2852 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2853 * length-prefixed strings). Returns 0 on success.
2855 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
2856 unsigned int protos_len)
2858 unsigned char *alpn;
2860 if (protos_len == 0 || protos == NULL) {
2861 OPENSSL_free(ctx->ext.alpn);
2862 ctx->ext.alpn = NULL;
2863 ctx->ext.alpn_len = 0;
2866 /* Not valid per RFC */
2867 if (!alpn_value_ok(protos, protos_len))
2870 alpn = OPENSSL_memdup(protos, protos_len);
2872 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE);
2875 OPENSSL_free(ctx->ext.alpn);
2876 ctx->ext.alpn = alpn;
2877 ctx->ext.alpn_len = protos_len;
2883 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2884 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2885 * length-prefixed strings). Returns 0 on success.
2887 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
2888 unsigned int protos_len)
2890 unsigned char *alpn;
2892 if (protos_len == 0 || protos == NULL) {
2893 OPENSSL_free(ssl->ext.alpn);
2894 ssl->ext.alpn = NULL;
2895 ssl->ext.alpn_len = 0;
2898 /* Not valid per RFC */
2899 if (!alpn_value_ok(protos, protos_len))
2902 alpn = OPENSSL_memdup(protos, protos_len);
2904 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE);
2907 OPENSSL_free(ssl->ext.alpn);
2908 ssl->ext.alpn = alpn;
2909 ssl->ext.alpn_len = protos_len;
2915 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2916 * called during ClientHello processing in order to select an ALPN protocol
2917 * from the client's list of offered protocols.
2919 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
2920 SSL_CTX_alpn_select_cb_func cb,
2923 ctx->ext.alpn_select_cb = cb;
2924 ctx->ext.alpn_select_cb_arg = arg;
2928 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
2929 * On return it sets |*data| to point to |*len| bytes of protocol name
2930 * (not including the leading length-prefix byte). If the server didn't
2931 * respond with a negotiated protocol then |*len| will be zero.
2933 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
2938 *data = ssl->s3->alpn_selected;
2942 *len = (unsigned int)ssl->s3->alpn_selected_len;
2945 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
2946 const char *label, size_t llen,
2947 const unsigned char *context, size_t contextlen,
2950 if (s->session == NULL
2951 || (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER))
2954 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
2956 contextlen, use_context);
2959 int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
2960 const char *label, size_t llen,
2961 const unsigned char *context,
2964 if (s->version != TLS1_3_VERSION)
2967 return tls13_export_keying_material_early(s, out, olen, label, llen,
2968 context, contextlen);
2971 static unsigned long ssl_session_hash(const SSL_SESSION *a)
2973 const unsigned char *session_id = a->session_id;
2975 unsigned char tmp_storage[4];
2977 if (a->session_id_length < sizeof(tmp_storage)) {
2978 memset(tmp_storage, 0, sizeof(tmp_storage));
2979 memcpy(tmp_storage, a->session_id, a->session_id_length);
2980 session_id = tmp_storage;
2984 ((unsigned long)session_id[0]) |
2985 ((unsigned long)session_id[1] << 8L) |
2986 ((unsigned long)session_id[2] << 16L) |
2987 ((unsigned long)session_id[3] << 24L);
2992 * NB: If this function (or indeed the hash function which uses a sort of
2993 * coarser function than this one) is changed, ensure
2994 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2995 * being able to construct an SSL_SESSION that will collide with any existing
2996 * session with a matching session ID.
2998 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
3000 if (a->ssl_version != b->ssl_version)
3002 if (a->session_id_length != b->session_id_length)
3004 return memcmp(a->session_id, b->session_id, a->session_id_length);
3008 * These wrapper functions should remain rather than redeclaring
3009 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3010 * variable. The reason is that the functions aren't static, they're exposed
3014 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
3016 SSL_CTX *ret = NULL;
3019 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
3023 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
3026 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3027 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
3030 ret = OPENSSL_zalloc(sizeof(*ret));
3035 ret->min_proto_version = 0;
3036 ret->max_proto_version = 0;
3037 ret->mode = SSL_MODE_AUTO_RETRY;
3038 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
3039 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
3040 /* We take the system default. */
3041 ret->session_timeout = meth->get_timeout();
3042 ret->references = 1;
3043 ret->lock = CRYPTO_THREAD_lock_new();
3044 if (ret->lock == NULL) {
3045 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
3049 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
3050 ret->verify_mode = SSL_VERIFY_NONE;
3051 if ((ret->cert = ssl_cert_new()) == NULL)
3054 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
3055 if (ret->sessions == NULL)
3057 ret->cert_store = X509_STORE_new();
3058 if (ret->cert_store == NULL)
3060 #ifndef OPENSSL_NO_CT
3061 ret->ctlog_store = CTLOG_STORE_new();
3062 if (ret->ctlog_store == NULL)
3066 if (!SSL_CTX_set_ciphersuites(ret, TLS_DEFAULT_CIPHERSUITES))
3069 if (!ssl_create_cipher_list(ret->method,
3070 ret->tls13_ciphersuites,
3071 &ret->cipher_list, &ret->cipher_list_by_id,
3072 SSL_DEFAULT_CIPHER_LIST, ret->cert)
3073 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
3074 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
3078 ret->param = X509_VERIFY_PARAM_new();
3079 if (ret->param == NULL)
3082 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
3083 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
3086 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
3087 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
3091 if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL)
3094 if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL)
3097 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data))
3100 if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
3103 /* No compression for DTLS */
3104 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
3105 ret->comp_methods = SSL_COMP_get_compression_methods();
3107 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3108 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3110 /* Setup RFC5077 ticket keys */
3111 if ((RAND_bytes(ret->ext.tick_key_name,
3112 sizeof(ret->ext.tick_key_name)) <= 0)
3113 || (RAND_priv_bytes(ret->ext.secure->tick_hmac_key,
3114 sizeof(ret->ext.secure->tick_hmac_key)) <= 0)
3115 || (RAND_priv_bytes(ret->ext.secure->tick_aes_key,
3116 sizeof(ret->ext.secure->tick_aes_key)) <= 0))
3117 ret->options |= SSL_OP_NO_TICKET;
3119 if (RAND_priv_bytes(ret->ext.cookie_hmac_key,
3120 sizeof(ret->ext.cookie_hmac_key)) <= 0)
3123 #ifndef OPENSSL_NO_SRP
3124 if (!SSL_CTX_SRP_CTX_init(ret))
3127 #ifndef OPENSSL_NO_ENGINE
3128 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3129 # define eng_strx(x) #x
3130 # define eng_str(x) eng_strx(x)
3131 /* Use specific client engine automatically... ignore errors */
3134 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3137 ENGINE_load_builtin_engines();
3138 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
3140 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
3146 * Default is to connect to non-RI servers. When RI is more widely
3147 * deployed might change this.
3149 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
3151 * Disable compression by default to prevent CRIME. Applications can
3152 * re-enable compression by configuring
3153 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3154 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3155 * middlebox compatibility by default. This may be disabled by default in
3156 * a later OpenSSL version.
3158 ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
3160 ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
3163 * We cannot usefully set a default max_early_data here (which gets
3164 * propagated in SSL_new(), for the following reason: setting the
3165 * SSL field causes tls_construct_stoc_early_data() to tell the
3166 * client that early data will be accepted when constructing a TLS 1.3
3167 * session ticket, and the client will accordingly send us early data
3168 * when using that ticket (if the client has early data to send).
3169 * However, in order for the early data to actually be consumed by
3170 * the application, the application must also have calls to
3171 * SSL_read_early_data(); otherwise we'll just skip past the early data
3172 * and ignore it. So, since the application must add calls to
3173 * SSL_read_early_data(), we also require them to add
3174 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3175 * eliminating the bandwidth-wasting early data in the case described
3178 ret->max_early_data = 0;
3181 * Default recv_max_early_data is a fully loaded single record. Could be
3182 * split across multiple records in practice. We set this differently to
3183 * max_early_data so that, in the default case, we do not advertise any
3184 * support for early_data, but if a client were to send us some (e.g.
3185 * because of an old, stale ticket) then we will tolerate it and skip over
3188 ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
3190 /* By default we send two session tickets automatically in TLSv1.3 */
3191 ret->num_tickets = 2;
3193 ssl_ctx_system_config(ret);
3197 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
3203 int SSL_CTX_up_ref(SSL_CTX *ctx)
3207 if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0)
3210 REF_PRINT_COUNT("SSL_CTX", ctx);
3211 REF_ASSERT_ISNT(i < 2);
3212 return ((i > 1) ? 1 : 0);
3215 void SSL_CTX_free(SSL_CTX *a)
3222 CRYPTO_DOWN_REF(&a->references, &i, a->lock);
3223 REF_PRINT_COUNT("SSL_CTX", a);
3226 REF_ASSERT_ISNT(i < 0);
3228 X509_VERIFY_PARAM_free(a->param);
3229 dane_ctx_final(&a->dane);
3232 * Free internal session cache. However: the remove_cb() may reference
3233 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3234 * after the sessions were flushed.
3235 * As the ex_data handling routines might also touch the session cache,
3236 * the most secure solution seems to be: empty (flush) the cache, then
3237 * free ex_data, then finally free the cache.
3238 * (See ticket [openssl.org #212].)
3240 if (a->sessions != NULL)
3241 SSL_CTX_flush_sessions(a, 0);
3243 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
3244 lh_SSL_SESSION_free(a->sessions);
3245 X509_STORE_free(a->cert_store);
3246 #ifndef OPENSSL_NO_CT
3247 CTLOG_STORE_free(a->ctlog_store);
3249 sk_SSL_CIPHER_free(a->cipher_list);
3250 sk_SSL_CIPHER_free(a->cipher_list_by_id);
3251 sk_SSL_CIPHER_free(a->tls13_ciphersuites);
3252 ssl_cert_free(a->cert);
3253 sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
3254 sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
3255 sk_X509_pop_free(a->extra_certs, X509_free);
3256 a->comp_methods = NULL;
3257 #ifndef OPENSSL_NO_SRTP
3258 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
3260 #ifndef OPENSSL_NO_SRP
3261 SSL_CTX_SRP_CTX_free(a);
3263 #ifndef OPENSSL_NO_ENGINE
3264 ENGINE_finish(a->client_cert_engine);
3267 #ifndef OPENSSL_NO_EC
3268 OPENSSL_free(a->ext.ecpointformats);
3269 OPENSSL_free(a->ext.supportedgroups);
3271 OPENSSL_free(a->ext.alpn);
3272 OPENSSL_secure_free(a->ext.secure);
3274 CRYPTO_THREAD_lock_free(a->lock);
3279 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
3281 ctx->default_passwd_callback = cb;
3284 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
3286 ctx->default_passwd_callback_userdata = u;
3289 pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
3291 return ctx->default_passwd_callback;
3294 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
3296 return ctx->default_passwd_callback_userdata;
3299 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
3301 s->default_passwd_callback = cb;
3304 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
3306 s->default_passwd_callback_userdata = u;
3309 pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
3311 return s->default_passwd_callback;
3314 void *SSL_get_default_passwd_cb_userdata(SSL *s)
3316 return s->default_passwd_callback_userdata;
3319 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
3320 int (*cb) (X509_STORE_CTX *, void *),
3323 ctx->app_verify_callback = cb;
3324 ctx->app_verify_arg = arg;
3327 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
3328 int (*cb) (int, X509_STORE_CTX *))
3330 ctx->verify_mode = mode;
3331 ctx->default_verify_callback = cb;
3334 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
3336 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
3339 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
3341 ssl_cert_set_cert_cb(c->cert, cb, arg);
3344 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
3346 ssl_cert_set_cert_cb(s->cert, cb, arg);
3349 void ssl_set_masks(SSL *s)
3352 uint32_t *pvalid = s->s3->tmp.valid_flags;
3353 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
3354 unsigned long mask_k, mask_a;
3355 #ifndef OPENSSL_NO_EC
3356 int have_ecc_cert, ecdsa_ok;
3361 #ifndef OPENSSL_NO_DH
3362 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
3367 rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
3368 rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
3369 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
3370 #ifndef OPENSSL_NO_EC
3371 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
3377 fprintf(stderr, "dht=%d re=%d rs=%d ds=%d\n",
3378 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
3381 #ifndef OPENSSL_NO_GOST
3382 if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
3383 mask_k |= SSL_kGOST;
3384 mask_a |= SSL_aGOST12;
3386 if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
3387 mask_k |= SSL_kGOST;
3388 mask_a |= SSL_aGOST12;
3390 if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
3391 mask_k |= SSL_kGOST;
3392 mask_a |= SSL_aGOST01;
3403 * If we only have an RSA-PSS certificate allow RSA authentication
3404 * if TLS 1.2 and peer supports it.
3407 if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
3408 && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
3409 && TLS1_get_version(s) == TLS1_2_VERSION))
3416 mask_a |= SSL_aNULL;
3419 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
3420 * depending on the key usage extension.
3422 #ifndef OPENSSL_NO_EC
3423 if (have_ecc_cert) {
3425 ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
3426 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
3427 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
3430 mask_a |= SSL_aECDSA;
3432 /* Allow Ed25519 for TLS 1.2 if peer supports it */
3433 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
3434 && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
3435 && TLS1_get_version(s) == TLS1_2_VERSION)
3436 mask_a |= SSL_aECDSA;
3438 /* Allow Ed448 for TLS 1.2 if peer supports it */
3439 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
3440 && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
3441 && TLS1_get_version(s) == TLS1_2_VERSION)
3442 mask_a |= SSL_aECDSA;
3445 #ifndef OPENSSL_NO_EC
3446 mask_k |= SSL_kECDHE;
3449 #ifndef OPENSSL_NO_PSK
3452 if (mask_k & SSL_kRSA)
3453 mask_k |= SSL_kRSAPSK;
3454 if (mask_k & SSL_kDHE)
3455 mask_k |= SSL_kDHEPSK;
3456 if (mask_k & SSL_kECDHE)
3457 mask_k |= SSL_kECDHEPSK;
3460 s->s3->tmp.mask_k = mask_k;
3461 s->s3->tmp.mask_a = mask_a;
3464 #ifndef OPENSSL_NO_EC
3466 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
3468 if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
3469 /* key usage, if present, must allow signing */
3470 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
3471 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
3472 SSL_R_ECC_CERT_NOT_FOR_SIGNING);
3476 return 1; /* all checks are ok */
3481 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
3482 size_t *serverinfo_length)
3484 CERT_PKEY *cpk = s->s3->tmp.cert;
3485 *serverinfo_length = 0;
3487 if (cpk == NULL || cpk->serverinfo == NULL)
3490 *serverinfo = cpk->serverinfo;
3491 *serverinfo_length = cpk->serverinfo_length;
3495 void ssl_update_cache(SSL *s, int mode)
3500 * If the session_id_length is 0, we are not supposed to cache it, and it
3501 * would be rather hard to do anyway :-)
3503 if (s->session->session_id_length == 0)
3507 * If sid_ctx_length is 0 there is no specific application context
3508 * associated with this session, so when we try to resume it and
3509 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
3510 * indication that this is actually a session for the proper application
3511 * context, and the *handshake* will fail, not just the resumption attempt.
3512 * Do not cache (on the server) these sessions that are not resumable
3513 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
3515 if (s->server && s->session->sid_ctx_length == 0
3516 && (s->verify_mode & SSL_VERIFY_PEER) != 0)
3519 i = s->session_ctx->session_cache_mode;
3521 && (!s->hit || SSL_IS_TLS13(s))) {
3523 * Add the session to the internal cache. In server side TLSv1.3 we
3524 * normally don't do this because by default it's a full stateless ticket
3525 * with only a dummy session id so there is no reason to cache it,
3527 * - we are doing early_data, in which case we cache so that we can
3529 * - the application has set a remove_session_cb so needs to know about
3530 * session timeout events
3531 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
3533 if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
3534 && (!SSL_IS_TLS13(s)
3536 || (s->max_early_data > 0
3537 && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
3538 || s->session_ctx->remove_session_cb != NULL
3539 || (s->options & SSL_OP_NO_TICKET) != 0))
3540 SSL_CTX_add_session(s->session_ctx, s->session);
3543 * Add the session to the external cache. We do this even in server side
3544 * TLSv1.3 without early data because some applications just want to
3545 * know about the creation of a session and aren't doing a full cache.
3547 if (s->session_ctx->new_session_cb != NULL) {
3548 SSL_SESSION_up_ref(s->session);
3549 if (!s->session_ctx->new_session_cb(s, s->session))
3550 SSL_SESSION_free(s->session);
3554 /* auto flush every 255 connections */
3555 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
3556 TSAN_QUALIFIER int *stat;
3557 if (mode & SSL_SESS_CACHE_CLIENT)
3558 stat = &s->session_ctx->stats.sess_connect_good;
3560 stat = &s->session_ctx->stats.sess_accept_good;
3561 if ((tsan_load(stat) & 0xff) == 0xff)
3562 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
3566 const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
3571 const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
3576 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
3580 if (s->method != meth) {
3581 const SSL_METHOD *sm = s->method;
3582 int (*hf) (SSL *) = s->handshake_func;
3584 if (sm->version == meth->version)
3589 ret = s->method->ssl_new(s);
3592 if (hf == sm->ssl_connect)
3593 s->handshake_func = meth->ssl_connect;
3594 else if (hf == sm->ssl_accept)
3595 s->handshake_func = meth->ssl_accept;
3600 int SSL_get_error(const SSL *s, int i)
3607 return SSL_ERROR_NONE;
3610 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3611 * where we do encode the error
3613 if ((l = ERR_peek_error()) != 0) {
3614 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
3615 return SSL_ERROR_SYSCALL;
3617 return SSL_ERROR_SSL;
3620 if (SSL_want_read(s)) {
3621 bio = SSL_get_rbio(s);
3622 if (BIO_should_read(bio))
3623 return SSL_ERROR_WANT_READ;
3624 else if (BIO_should_write(bio))
3626 * This one doesn't make too much sense ... We never try to write
3627 * to the rbio, and an application program where rbio and wbio
3628 * are separate couldn't even know what it should wait for.
3629 * However if we ever set s->rwstate incorrectly (so that we have
3630 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3631 * wbio *are* the same, this test works around that bug; so it
3632 * might be safer to keep it.
3634 return SSL_ERROR_WANT_WRITE;
3635 else if (BIO_should_io_special(bio)) {
3636 reason = BIO_get_retry_reason(bio);
3637 if (reason == BIO_RR_CONNECT)
3638 return SSL_ERROR_WANT_CONNECT;
3639 else if (reason == BIO_RR_ACCEPT)
3640 return SSL_ERROR_WANT_ACCEPT;
3642 return SSL_ERROR_SYSCALL; /* unknown */
3646 if (SSL_want_write(s)) {
3647 /* Access wbio directly - in order to use the buffered bio if present */
3649 if (BIO_should_write(bio))
3650 return SSL_ERROR_WANT_WRITE;
3651 else if (BIO_should_read(bio))
3653 * See above (SSL_want_read(s) with BIO_should_write(bio))
3655 return SSL_ERROR_WANT_READ;
3656 else if (BIO_should_io_special(bio)) {
3657 reason = BIO_get_retry_reason(bio);
3658 if (reason == BIO_RR_CONNECT)
3659 return SSL_ERROR_WANT_CONNECT;
3660 else if (reason == BIO_RR_ACCEPT)
3661 return SSL_ERROR_WANT_ACCEPT;
3663 return SSL_ERROR_SYSCALL;
3666 if (SSL_want_x509_lookup(s))
3667 return SSL_ERROR_WANT_X509_LOOKUP;
3668 if (SSL_want_async(s))
3669 return SSL_ERROR_WANT_ASYNC;
3670 if (SSL_want_async_job(s))
3671 return SSL_ERROR_WANT_ASYNC_JOB;
3672 if (SSL_want_client_hello_cb(s))
3673 return SSL_ERROR_WANT_CLIENT_HELLO_CB;
3675 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
3676 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
3677 return SSL_ERROR_ZERO_RETURN;
3679 return SSL_ERROR_SYSCALL;
3682 static int ssl_do_handshake_intern(void *vargs)
3684 struct ssl_async_args *args;
3687 args = (struct ssl_async_args *)vargs;
3690 return s->handshake_func(s);
3693 int SSL_do_handshake(SSL *s)
3697 if (s->handshake_func == NULL) {
3698 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
3702 ossl_statem_check_finish_init(s, -1);
3704 s->method->ssl_renegotiate_check(s, 0);
3706 if (SSL_in_init(s) || SSL_in_before(s)) {
3707 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
3708 struct ssl_async_args args;
3712 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
3714 ret = s->handshake_func(s);
3720 void SSL_set_accept_state(SSL *s)
3724 ossl_statem_clear(s);
3725 s->handshake_func = s->method->ssl_accept;
3729 void SSL_set_connect_state(SSL *s)
3733 ossl_statem_clear(s);
3734 s->handshake_func = s->method->ssl_connect;
3738 int ssl_undefined_function(SSL *s)
3740 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
3744 int ssl_undefined_void_function(void)
3746 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
3747 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
3751 int ssl_undefined_const_function(const SSL *s)
3756 const SSL_METHOD *ssl_bad_method(int ver)
3758 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
3762 const char *ssl_protocol_to_string(int version)
3766 case TLS1_3_VERSION:
3769 case TLS1_2_VERSION:
3772 case TLS1_1_VERSION:
3787 case DTLS1_2_VERSION:
3795 const char *SSL_get_version(const SSL *s)
3797 return ssl_protocol_to_string(s->version);
3800 static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
3802 STACK_OF(X509_NAME) *sk;
3811 if ((sk = sk_X509_NAME_new_null()) == NULL)
3813 for (i = 0; i < sk_X509_NAME_num(src); i++) {
3814 xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
3816 sk_X509_NAME_pop_free(sk, X509_NAME_free);
3819 if (sk_X509_NAME_insert(sk, xn, i) == 0) {
3821 sk_X509_NAME_pop_free(sk, X509_NAME_free);
3830 SSL *SSL_dup(SSL *s)
3835 /* If we're not quiescent, just up_ref! */
3836 if (!SSL_in_init(s) || !SSL_in_before(s)) {
3837 CRYPTO_UP_REF(&s->references, &i, s->lock);
3842 * Otherwise, copy configuration state, and session if set.
3844 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
3847 if (s->session != NULL) {
3849 * Arranges to share the same session via up_ref. This "copies"
3850 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3852 if (!SSL_copy_session_id(ret, s))
3856 * No session has been established yet, so we have to expect that
3857 * s->cert or ret->cert will be changed later -- they should not both
3858 * point to the same object, and thus we can't use
3859 * SSL_copy_session_id.
3861 if (!SSL_set_ssl_method(ret, s->method))
3864 if (s->cert != NULL) {
3865 ssl_cert_free(ret->cert);
3866 ret->cert = ssl_cert_dup(s->cert);
3867 if (ret->cert == NULL)
3871 if (!SSL_set_session_id_context(ret, s->sid_ctx,
3872 (int)s->sid_ctx_length))
3876 if (!ssl_dane_dup(ret, s))
3878 ret->version = s->version;
3879 ret->options = s->options;
3880 ret->min_proto_version = s->min_proto_version;
3881 ret->max_proto_version = s->max_proto_version;
3882 ret->mode = s->mode;
3883 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
3884 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
3885 ret->msg_callback = s->msg_callback;
3886 ret->msg_callback_arg = s->msg_callback_arg;
3887 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
3888 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
3889 ret->generate_session_id = s->generate_session_id;
3891 SSL_set_info_callback(ret, SSL_get_info_callback(s));
3893 /* copy app data, a little dangerous perhaps */
3894 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
3897 ret->server = s->server;
3898 if (s->handshake_func) {
3900 SSL_set_accept_state(ret);
3902 SSL_set_connect_state(ret);
3904 ret->shutdown = s->shutdown;
3907 ret->default_passwd_callback = s->default_passwd_callback;
3908 ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata;
3910 X509_VERIFY_PARAM_inherit(ret->param, s->param);
3912 /* dup the cipher_list and cipher_list_by_id stacks */
3913 if (s->cipher_list != NULL) {
3914 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
3917 if (s->cipher_list_by_id != NULL)
3918 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
3922 /* Dup the client_CA list */
3923 if (!dup_ca_names(&ret->ca_names, s->ca_names)
3924 || !dup_ca_names(&ret->client_ca_names, s->client_ca_names))
3934 void ssl_clear_cipher_ctx(SSL *s)
3936 if (s->enc_read_ctx != NULL) {
3937 EVP_CIPHER_CTX_free(s->enc_read_ctx);
3938 s->enc_read_ctx = NULL;
3940 if (s->enc_write_ctx != NULL) {
3941 EVP_CIPHER_CTX_free(s->enc_write_ctx);
3942 s->enc_write_ctx = NULL;
3944 #ifndef OPENSSL_NO_COMP
3945 COMP_CTX_free(s->expand);
3947 COMP_CTX_free(s->compress);
3952 X509 *SSL_get_certificate(const SSL *s)
3954 if (s->cert != NULL)
3955 return s->cert->key->x509;
3960 EVP_PKEY *SSL_get_privatekey(const SSL *s)
3962 if (s->cert != NULL)
3963 return s->cert->key->privatekey;
3968 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
3970 if (ctx->cert != NULL)
3971 return ctx->cert->key->x509;
3976 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
3978 if (ctx->cert != NULL)
3979 return ctx->cert->key->privatekey;
3984 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
3986 if ((s->session != NULL) && (s->session->cipher != NULL))
3987 return s->session->cipher;
3991 const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
3993 return s->s3->tmp.new_cipher;
3996 const COMP_METHOD *SSL_get_current_compression(const SSL *s)
3998 #ifndef OPENSSL_NO_COMP
3999 return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
4005 const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
4007 #ifndef OPENSSL_NO_COMP
4008 return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
4014 int ssl_init_wbio_buffer(SSL *s)
4018 if (s->bbio != NULL) {
4019 /* Already buffered. */
4023 bbio = BIO_new(BIO_f_buffer());
4024 if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) {
4026 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
4030 s->wbio = BIO_push(bbio, s->wbio);
4035 int ssl_free_wbio_buffer(SSL *s)
4037 /* callers ensure s is never null */
4038 if (s->bbio == NULL)
4041 s->wbio = BIO_pop(s->wbio);
4048 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
4050 ctx->quiet_shutdown = mode;
4053 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
4055 return ctx->quiet_shutdown;
4058 void SSL_set_quiet_shutdown(SSL *s, int mode)
4060 s->quiet_shutdown = mode;
4063 int SSL_get_quiet_shutdown(const SSL *s)
4065 return s->quiet_shutdown;
4068 void SSL_set_shutdown(SSL *s, int mode)
4073 int SSL_get_shutdown(const SSL *s)
4078 int SSL_version(const SSL *s)
4083 int SSL_client_version(const SSL *s)
4085 return s->client_version;
4088 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
4093 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
4096 if (ssl->ctx == ctx)
4099 ctx = ssl->session_ctx;
4100 new_cert = ssl_cert_dup(ctx->cert);
4101 if (new_cert == NULL) {
4105 if (!custom_exts_copy_flags(&new_cert->custext, &ssl->cert->custext)) {
4106 ssl_cert_free(new_cert);
4110 ssl_cert_free(ssl->cert);
4111 ssl->cert = new_cert;
4114 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
4115 * so setter APIs must prevent invalid lengths from entering the system.
4117 if (!ossl_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx)))
4121 * If the session ID context matches that of the parent SSL_CTX,
4122 * inherit it from the new SSL_CTX as well. If however the context does
4123 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
4124 * leave it unchanged.
4126 if ((ssl->ctx != NULL) &&
4127 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
4128 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
4129 ssl->sid_ctx_length = ctx->sid_ctx_length;
4130 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
4133 SSL_CTX_up_ref(ctx);
4134 SSL_CTX_free(ssl->ctx); /* decrement reference count */
4140 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
4142 return X509_STORE_set_default_paths(ctx->cert_store);
4145 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
4147 X509_LOOKUP *lookup;
4149 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
4152 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
4154 /* Clear any errors if the default directory does not exist */
4160 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
4162 X509_LOOKUP *lookup;
4164 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
4168 X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
4170 /* Clear any errors if the default file does not exist */
4176 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
4179 return X509_STORE_load_locations(ctx->cert_store, CAfile, CApath);
4182 void SSL_set_info_callback(SSL *ssl,
4183 void (*cb) (const SSL *ssl, int type, int val))
4185 ssl->info_callback = cb;
4189 * One compiler (Diab DCC) doesn't like argument names in returned function
4192 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
4195 return ssl->info_callback;
4198 void SSL_set_verify_result(SSL *ssl, long arg)
4200 ssl->verify_result = arg;
4203 long SSL_get_verify_result(const SSL *ssl)
4205 return ssl->verify_result;
4208 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
4211 return sizeof(ssl->s3->client_random);
4212 if (outlen > sizeof(ssl->s3->client_random))
4213 outlen = sizeof(ssl->s3->client_random);
4214 memcpy(out, ssl->s3->client_random, outlen);
4218 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
4221 return sizeof(ssl->s3->server_random);
4222 if (outlen > sizeof(ssl->s3->server_random))
4223 outlen = sizeof(ssl->s3->server_random);
4224 memcpy(out, ssl->s3->server_random, outlen);
4228 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
4229 unsigned char *out, size_t outlen)
4232 return session->master_key_length;
4233 if (outlen > session->master_key_length)
4234 outlen = session->master_key_length;
4235 memcpy(out, session->master_key, outlen);
4239 int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
4242 if (len > sizeof(sess->master_key))
4245 memcpy(sess->master_key, in, len);
4246 sess->master_key_length = len;
4251 int SSL_set_ex_data(SSL *s, int idx, void *arg)
4253 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
4256 void *SSL_get_ex_data(const SSL *s, int idx)
4258 return CRYPTO_get_ex_data(&s->ex_data, idx);
4261 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
4263 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
4266 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
4268 return CRYPTO_get_ex_data(&s->ex_data, idx);
4271 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
4273 return ctx->cert_store;
4276 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
4278 X509_STORE_free(ctx->cert_store);
4279 ctx->cert_store = store;
4282 void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
4285 X509_STORE_up_ref(store);
4286 SSL_CTX_set_cert_store(ctx, store);
4289 int SSL_want(const SSL *s)
4295 * \brief Set the callback for generating temporary DH keys.
4296 * \param ctx the SSL context.
4297 * \param dh the callback
4300 #ifndef OPENSSL_NO_DH
4301 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
4302 DH *(*dh) (SSL *ssl, int is_export,
4305 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
4308 void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
4311 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
4315 #ifndef OPENSSL_NO_PSK
4316 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
4318 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
4319 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
4322 OPENSSL_free(ctx->cert->psk_identity_hint);
4323 if (identity_hint != NULL) {
4324 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
4325 if (ctx->cert->psk_identity_hint == NULL)
4328 ctx->cert->psk_identity_hint = NULL;
4332 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
4337 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
4338 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
4341 OPENSSL_free(s->cert->psk_identity_hint);
4342 if (identity_hint != NULL) {
4343 s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
4344 if (s->cert->psk_identity_hint == NULL)
4347 s->cert->psk_identity_hint = NULL;
4351 const char *SSL_get_psk_identity_hint(const SSL *s)
4353 if (s == NULL || s->session == NULL)
4355 return s->session->psk_identity_hint;
4358 const char *SSL_get_psk_identity(const SSL *s)
4360 if (s == NULL || s->session == NULL)
4362 return s->session->psk_identity;
4365 void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
4367 s->psk_client_callback = cb;
4370 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
4372 ctx->psk_client_callback = cb;
4375 void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
4377 s->psk_server_callback = cb;
4380 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
4382 ctx->psk_server_callback = cb;
4386 void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
4388 s->psk_find_session_cb = cb;
4391 void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
4392 SSL_psk_find_session_cb_func cb)
4394 ctx->psk_find_session_cb = cb;
4397 void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
4399 s->psk_use_session_cb = cb;
4402 void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
4403 SSL_psk_use_session_cb_func cb)
4405 ctx->psk_use_session_cb = cb;
4408 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
4409 void (*cb) (int write_p, int version,
4410 int content_type, const void *buf,
4411 size_t len, SSL *ssl, void *arg))
4413 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
4416 void SSL_set_msg_callback(SSL *ssl,
4417 void (*cb) (int write_p, int version,
4418 int content_type, const void *buf,
4419 size_t len, SSL *ssl, void *arg))
4421 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
4424 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
4425 int (*cb) (SSL *ssl,
4429 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
4430 (void (*)(void))cb);
4433 void SSL_set_not_resumable_session_callback(SSL *ssl,
4434 int (*cb) (SSL *ssl,
4435 int is_forward_secure))
4437 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
4438 (void (*)(void))cb);
4441 void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
4442 size_t (*cb) (SSL *ssl, int type,
4443 size_t len, void *arg))
4445 ctx->record_padding_cb = cb;
4448 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
4450 ctx->record_padding_arg = arg;
4453 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
4455 return ctx->record_padding_arg;
4458 int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
4460 /* block size of 0 or 1 is basically no padding */
4461 if (block_size == 1)
4462 ctx->block_padding = 0;
4463 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
4464 ctx->block_padding = block_size;
4470 void SSL_set_record_padding_callback(SSL *ssl,
4471 size_t (*cb) (SSL *ssl, int type,
4472 size_t len, void *arg))
4474 ssl->record_padding_cb = cb;
4477 void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
4479 ssl->record_padding_arg = arg;
4482 void *SSL_get_record_padding_callback_arg(const SSL *ssl)
4484 return ssl->record_padding_arg;
4487 int SSL_set_block_padding(SSL *ssl, size_t block_size)
4489 /* block size of 0 or 1 is basically no padding */
4490 if (block_size == 1)
4491 ssl->block_padding = 0;
4492 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
4493 ssl->block_padding = block_size;
4499 int SSL_set_num_tickets(SSL *s, size_t num_tickets)
4501 s->num_tickets = num_tickets;
4506 size_t SSL_get_num_tickets(const SSL *s)
4508 return s->num_tickets;
4511 int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
4513 ctx->num_tickets = num_tickets;
4518 size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
4520 return ctx->num_tickets;
4524 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
4525 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
4526 * If EVP_MD pointer is passed, initializes ctx with this |md|.
4527 * Returns the newly allocated ctx;
4530 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
4532 ssl_clear_hash_ctx(hash);
4533 *hash = EVP_MD_CTX_new();
4534 if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) {
4535 EVP_MD_CTX_free(*hash);
4542 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
4545 EVP_MD_CTX_free(*hash);
4549 /* Retrieve handshake hashes */
4550 int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen,
4553 EVP_MD_CTX *ctx = NULL;
4554 EVP_MD_CTX *hdgst = s->s3->handshake_dgst;
4555 int hashleni = EVP_MD_CTX_size(hdgst);
4558 if (hashleni < 0 || (size_t)hashleni > outlen) {
4559 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH,
4560 ERR_R_INTERNAL_ERROR);
4564 ctx = EVP_MD_CTX_new();
4566 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH,
4567 ERR_R_INTERNAL_ERROR);
4571 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
4572 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
4573 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH,
4574 ERR_R_INTERNAL_ERROR);
4578 *hashlen = hashleni;
4582 EVP_MD_CTX_free(ctx);
4586 int SSL_session_reused(const SSL *s)
4591 int SSL_is_server(const SSL *s)
4596 #if OPENSSL_API_COMPAT < 0x10100000L
4597 void SSL_set_debug(SSL *s, int debug)
4599 /* Old function was do-nothing anyway... */
4605 void SSL_set_security_level(SSL *s, int level)
4607 s->cert->sec_level = level;
4610 int SSL_get_security_level(const SSL *s)
4612 return s->cert->sec_level;
4615 void SSL_set_security_callback(SSL *s,
4616 int (*cb) (const SSL *s, const SSL_CTX *ctx,
4617 int op, int bits, int nid,
4618 void *other, void *ex))
4620 s->cert->sec_cb = cb;
4623 int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
4624 const SSL_CTX *ctx, int op,
4625 int bits, int nid, void *other,
4627 return s->cert->sec_cb;
4630 void SSL_set0_security_ex_data(SSL *s, void *ex)
4632 s->cert->sec_ex = ex;
4635 void *SSL_get0_security_ex_data(const SSL *s)
4637 return s->cert->sec_ex;
4640 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
4642 ctx->cert->sec_level = level;
4645 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
4647 return ctx->cert->sec_level;
4650 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
4651 int (*cb) (const SSL *s, const SSL_CTX *ctx,
4652 int op, int bits, int nid,
4653 void *other, void *ex))
4655 ctx->cert->sec_cb = cb;
4658 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
4664 return ctx->cert->sec_cb;
4667 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
4669 ctx->cert->sec_ex = ex;
4672 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
4674 return ctx->cert->sec_ex;
4678 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4679 * can return unsigned long, instead of the generic long return value from the
4680 * control interface.
4682 unsigned long SSL_CTX_get_options(const SSL_CTX *ctx)
4684 return ctx->options;
4687 unsigned long SSL_get_options(const SSL *s)
4692 unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op)
4694 return ctx->options |= op;
4697 unsigned long SSL_set_options(SSL *s, unsigned long op)
4699 return s->options |= op;
4702 unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op)
4704 return ctx->options &= ~op;
4707 unsigned long SSL_clear_options(SSL *s, unsigned long op)
4709 return s->options &= ~op;
4712 STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
4714 return s->verified_chain;
4717 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
4719 #ifndef OPENSSL_NO_CT
4722 * Moves SCTs from the |src| stack to the |dst| stack.
4723 * The source of each SCT will be set to |origin|.
4724 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4726 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4728 static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
4729 sct_source_t origin)
4735 *dst = sk_SCT_new_null();
4737 SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE);
4742 while ((sct = sk_SCT_pop(src)) != NULL) {
4743 if (SCT_set_source(sct, origin) != 1)
4746 if (sk_SCT_push(*dst, sct) <= 0)
4754 sk_SCT_push(src, sct); /* Put the SCT back */
4759 * Look for data collected during ServerHello and parse if found.
4760 * Returns the number of SCTs extracted.
4762 static int ct_extract_tls_extension_scts(SSL *s)
4764 int scts_extracted = 0;
4766 if (s->ext.scts != NULL) {
4767 const unsigned char *p = s->ext.scts;
4768 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
4770 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
4772 SCT_LIST_free(scts);
4775 return scts_extracted;
4779 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4780 * contains an SCT X509 extension. They will be stored in |s->scts|.
4782 * - The number of SCTs extracted, assuming an OCSP response exists.
4783 * - 0 if no OCSP response exists or it contains no SCTs.
4784 * - A negative integer if an error occurs.
4786 static int ct_extract_ocsp_response_scts(SSL *s)
4788 # ifndef OPENSSL_NO_OCSP
4789 int scts_extracted = 0;
4790 const unsigned char *p;
4791 OCSP_BASICRESP *br = NULL;
4792 OCSP_RESPONSE *rsp = NULL;
4793 STACK_OF(SCT) *scts = NULL;
4796 if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
4799 p = s->ext.ocsp.resp;
4800 rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
4804 br = OCSP_response_get1_basic(rsp);
4808 for (i = 0; i < OCSP_resp_count(br); ++i) {
4809 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
4815 OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
4817 ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
4818 if (scts_extracted < 0)
4822 SCT_LIST_free(scts);
4823 OCSP_BASICRESP_free(br);
4824 OCSP_RESPONSE_free(rsp);
4825 return scts_extracted;
4827 /* Behave as if no OCSP response exists */
4833 * Attempts to extract SCTs from the peer certificate.
4834 * Return the number of SCTs extracted, or a negative integer if an error
4837 static int ct_extract_x509v3_extension_scts(SSL *s)
4839 int scts_extracted = 0;
4840 X509 *cert = s->session != NULL ? s->session->peer : NULL;
4843 STACK_OF(SCT) *scts =
4844 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
4847 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
4849 SCT_LIST_free(scts);
4852 return scts_extracted;
4856 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4857 * response (if it exists) and X509v3 extensions in the certificate.
4858 * Returns NULL if an error occurs.
4860 const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
4862 if (!s->scts_parsed) {
4863 if (ct_extract_tls_extension_scts(s) < 0 ||
4864 ct_extract_ocsp_response_scts(s) < 0 ||
4865 ct_extract_x509v3_extension_scts(s) < 0)
4875 static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx,
4876 const STACK_OF(SCT) *scts, void *unused_arg)
4881 static int ct_strict(const CT_POLICY_EVAL_CTX * ctx,
4882 const STACK_OF(SCT) *scts, void *unused_arg)
4884 int count = scts != NULL ? sk_SCT_num(scts) : 0;
4887 for (i = 0; i < count; ++i) {
4888 SCT *sct = sk_SCT_value(scts, i);
4889 int status = SCT_get_validation_status(sct);
4891 if (status == SCT_VALIDATION_STATUS_VALID)
4894 SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS);
4898 int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
4902 * Since code exists that uses the custom extension handler for CT, look
4903 * for this and throw an error if they have already registered to use CT.
4905 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
4906 TLSEXT_TYPE_signed_certificate_timestamp))
4908 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK,
4909 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
4913 if (callback != NULL) {
4915 * If we are validating CT, then we MUST accept SCTs served via OCSP
4917 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
4921 s->ct_validation_callback = callback;
4922 s->ct_validation_callback_arg = arg;
4927 int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
4928 ssl_ct_validation_cb callback, void *arg)
4931 * Since code exists that uses the custom extension handler for CT, look for
4932 * this and throw an error if they have already registered to use CT.
4934 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
4935 TLSEXT_TYPE_signed_certificate_timestamp))
4937 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK,
4938 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
4942 ctx->ct_validation_callback = callback;
4943 ctx->ct_validation_callback_arg = arg;
4947 int SSL_ct_is_enabled(const SSL *s)
4949 return s->ct_validation_callback != NULL;
4952 int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
4954 return ctx->ct_validation_callback != NULL;
4957 int ssl_validate_ct(SSL *s)
4960 X509 *cert = s->session != NULL ? s->session->peer : NULL;
4962 SSL_DANE *dane = &s->dane;
4963 CT_POLICY_EVAL_CTX *ctx = NULL;
4964 const STACK_OF(SCT) *scts;
4967 * If no callback is set, the peer is anonymous, or its chain is invalid,
4968 * skip SCT validation - just return success. Applications that continue
4969 * handshakes without certificates, with unverified chains, or pinned leaf
4970 * certificates are outside the scope of the WebPKI and CT.
4972 * The above exclusions notwithstanding the vast majority of peers will
4973 * have rather ordinary certificate chains validated by typical
4974 * applications that perform certificate verification and therefore will
4975 * process SCTs when enabled.
4977 if (s->ct_validation_callback == NULL || cert == NULL ||
4978 s->verify_result != X509_V_OK ||
4979 s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
4983 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
4984 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
4986 if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
4987 switch (dane->mtlsa->usage) {
4988 case DANETLS_USAGE_DANE_TA:
4989 case DANETLS_USAGE_DANE_EE:
4994 ctx = CT_POLICY_EVAL_CTX_new();
4996 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_VALIDATE_CT,
4997 ERR_R_MALLOC_FAILURE);
5001 issuer = sk_X509_value(s->verified_chain, 1);
5002 CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
5003 CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
5004 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx, s->ctx->ctlog_store);
5005 CT_POLICY_EVAL_CTX_set_time(
5006 ctx, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s)) * 1000);
5008 scts = SSL_get0_peer_scts(s);
5011 * This function returns success (> 0) only when all the SCTs are valid, 0
5012 * when some are invalid, and < 0 on various internal errors (out of
5013 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
5014 * reason to abort the handshake, that decision is up to the callback.
5015 * Therefore, we error out only in the unexpected case that the return
5016 * value is negative.
5018 * XXX: One might well argue that the return value of this function is an
5019 * unfortunate design choice. Its job is only to determine the validation
5020 * status of each of the provided SCTs. So long as it correctly separates
5021 * the wheat from the chaff it should return success. Failure in this case
5022 * ought to correspond to an inability to carry out its duties.
5024 if (SCT_LIST_validate(scts, ctx) < 0) {
5025 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_SSL_VALIDATE_CT,
5026 SSL_R_SCT_VERIFICATION_FAILED);
5030 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
5032 ret = 0; /* This function returns 0 on failure */
5034 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_SSL_VALIDATE_CT,
5035 SSL_R_CALLBACK_FAILED);
5038 CT_POLICY_EVAL_CTX_free(ctx);
5040 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
5041 * failure return code here. Also the application may wish the complete
5042 * the handshake, and then disconnect cleanly at a higher layer, after
5043 * checking the verification status of the completed connection.
5045 * We therefore force a certificate verification failure which will be
5046 * visible via SSL_get_verify_result() and cached as part of any resumed
5049 * Note: the permissive callback is for information gathering only, always
5050 * returns success, and does not affect verification status. Only the
5051 * strict callback or a custom application-specified callback can trigger
5052 * connection failure or record a verification error.
5055 s->verify_result = X509_V_ERR_NO_VALID_SCTS;
5059 int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
5061 switch (validation_mode) {
5063 SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE);
5065 case SSL_CT_VALIDATION_PERMISSIVE:
5066 return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
5067 case SSL_CT_VALIDATION_STRICT:
5068 return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
5072 int SSL_enable_ct(SSL *s, int validation_mode)
5074 switch (validation_mode) {
5076 SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE);
5078 case SSL_CT_VALIDATION_PERMISSIVE:
5079 return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
5080 case SSL_CT_VALIDATION_STRICT:
5081 return SSL_set_ct_validation_callback(s, ct_strict, NULL);
5085 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
5087 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
5090 int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
5092 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
5095 void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs)
5097 CTLOG_STORE_free(ctx->ctlog_store);
5098 ctx->ctlog_store = logs;
5101 const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
5103 return ctx->ctlog_store;
5106 #endif /* OPENSSL_NO_CT */
5108 void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
5111 c->client_hello_cb = cb;
5112 c->client_hello_cb_arg = arg;
5115 int SSL_client_hello_isv2(SSL *s)
5117 if (s->clienthello == NULL)
5119 return s->clienthello->isv2;
5122 unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
5124 if (s->clienthello == NULL)
5126 return s->clienthello->legacy_version;
5129 size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out)
5131 if (s->clienthello == NULL)
5134 *out = s->clienthello->random;
5135 return SSL3_RANDOM_SIZE;
5138 size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
5140 if (s->clienthello == NULL)
5143 *out = s->clienthello->session_id;
5144 return s->clienthello->session_id_len;
5147 size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
5149 if (s->clienthello == NULL)
5152 *out = PACKET_data(&s->clienthello->ciphersuites);
5153 return PACKET_remaining(&s->clienthello->ciphersuites);
5156 size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
5158 if (s->clienthello == NULL)
5161 *out = s->clienthello->compressions;
5162 return s->clienthello->compressions_len;
5165 int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
5171 if (s->clienthello == NULL || out == NULL || outlen == NULL)
5173 for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) {
5174 ext = s->clienthello->pre_proc_exts + i;
5183 if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL) {
5184 SSLerr(SSL_F_SSL_CLIENT_HELLO_GET1_EXTENSIONS_PRESENT,
5185 ERR_R_MALLOC_FAILURE);
5188 for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) {
5189 ext = s->clienthello->pre_proc_exts + i;
5191 if (ext->received_order >= num)
5193 present[ext->received_order] = ext->type;
5200 OPENSSL_free(present);
5204 int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
5210 if (s->clienthello == NULL)
5212 for (i = 0; i < s->clienthello->pre_proc_exts_len; ++i) {
5213 r = s->clienthello->pre_proc_exts + i;
5214 if (r->present && r->type == type) {
5216 *out = PACKET_data(&r->data);
5218 *outlen = PACKET_remaining(&r->data);
5225 int SSL_free_buffers(SSL *ssl)
5227 RECORD_LAYER *rl = &ssl->rlayer;
5229 if (RECORD_LAYER_read_pending(rl) || RECORD_LAYER_write_pending(rl))
5232 RECORD_LAYER_release(rl);
5236 int SSL_alloc_buffers(SSL *ssl)
5238 return ssl3_setup_buffers(ssl);
5241 void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
5243 ctx->keylog_callback = cb;
5246 SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
5248 return ctx->keylog_callback;
5251 static int nss_keylog_int(const char *prefix,
5253 const uint8_t *parameter_1,
5254 size_t parameter_1_len,
5255 const uint8_t *parameter_2,
5256 size_t parameter_2_len)
5259 char *cursor = NULL;
5264 if (ssl->ctx->keylog_callback == NULL)
5268 * Our output buffer will contain the following strings, rendered with
5269 * space characters in between, terminated by a NULL character: first the
5270 * prefix, then the first parameter, then the second parameter. The
5271 * meaning of each parameter depends on the specific key material being
5272 * logged. Note that the first and second parameters are encoded in
5273 * hexadecimal, so we need a buffer that is twice their lengths.
5275 prefix_len = strlen(prefix);
5276 out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
5277 if ((out = cursor = OPENSSL_malloc(out_len)) == NULL) {
5278 SSLfatal(ssl, SSL_AD_INTERNAL_ERROR, SSL_F_NSS_KEYLOG_INT,
5279 ERR_R_MALLOC_FAILURE);
5283 strcpy(cursor, prefix);
5284 cursor += prefix_len;
5287 for (i = 0; i < parameter_1_len; i++) {
5288 sprintf(cursor, "%02x", parameter_1[i]);
5293 for (i = 0; i < parameter_2_len; i++) {
5294 sprintf(cursor, "%02x", parameter_2[i]);
5299 ssl->ctx->keylog_callback(ssl, (const char *)out);
5300 OPENSSL_clear_free(out, out_len);
5305 int ssl_log_rsa_client_key_exchange(SSL *ssl,
5306 const uint8_t *encrypted_premaster,
5307 size_t encrypted_premaster_len,
5308 const uint8_t *premaster,
5309 size_t premaster_len)
5311 if (encrypted_premaster_len < 8) {
5312 SSLfatal(ssl, SSL_AD_INTERNAL_ERROR,
5313 SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
5317 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
5318 return nss_keylog_int("RSA",
5320 encrypted_premaster,
5326 int ssl_log_secret(SSL *ssl,
5328 const uint8_t *secret,
5331 return nss_keylog_int(label,
5333 ssl->s3->client_random,
5339 #define SSLV2_CIPHER_LEN 3
5341 int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites, int sslv2format)
5345 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
5347 if (PACKET_remaining(cipher_suites) == 0) {
5348 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_SSL_CACHE_CIPHERLIST,
5349 SSL_R_NO_CIPHERS_SPECIFIED);
5353 if (PACKET_remaining(cipher_suites) % n != 0) {
5354 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
5355 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
5359 OPENSSL_free(s->s3->tmp.ciphers_raw);
5360 s->s3->tmp.ciphers_raw = NULL;
5361 s->s3->tmp.ciphers_rawlen = 0;
5364 size_t numciphers = PACKET_remaining(cipher_suites) / n;
5365 PACKET sslv2ciphers = *cipher_suites;
5366 unsigned int leadbyte;
5370 * We store the raw ciphers list in SSLv3+ format so we need to do some
5371 * preprocessing to convert the list first. If there are any SSLv2 only
5372 * ciphersuites with a non-zero leading byte then we are going to
5373 * slightly over allocate because we won't store those. But that isn't a
5376 raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
5377 s->s3->tmp.ciphers_raw = raw;
5379 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
5380 ERR_R_MALLOC_FAILURE);
5383 for (s->s3->tmp.ciphers_rawlen = 0;
5384 PACKET_remaining(&sslv2ciphers) > 0;
5385 raw += TLS_CIPHER_LEN) {
5386 if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
5388 && !PACKET_copy_bytes(&sslv2ciphers, raw,
5391 && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
5392 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
5394 OPENSSL_free(s->s3->tmp.ciphers_raw);
5395 s->s3->tmp.ciphers_raw = NULL;
5396 s->s3->tmp.ciphers_rawlen = 0;
5400 s->s3->tmp.ciphers_rawlen += TLS_CIPHER_LEN;
5402 } else if (!PACKET_memdup(cipher_suites, &s->s3->tmp.ciphers_raw,
5403 &s->s3->tmp.ciphers_rawlen)) {
5404 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,
5405 ERR_R_INTERNAL_ERROR);
5411 int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
5412 int isv2format, STACK_OF(SSL_CIPHER) **sk,
5413 STACK_OF(SSL_CIPHER) **scsvs)
5417 if (!PACKET_buf_init(&pkt, bytes, len))
5419 return bytes_to_cipher_list(s, &pkt, sk, scsvs, isv2format, 0);
5422 int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites,
5423 STACK_OF(SSL_CIPHER) **skp,
5424 STACK_OF(SSL_CIPHER) **scsvs_out,
5425 int sslv2format, int fatal)
5427 const SSL_CIPHER *c;
5428 STACK_OF(SSL_CIPHER) *sk = NULL;
5429 STACK_OF(SSL_CIPHER) *scsvs = NULL;
5431 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
5432 unsigned char cipher[SSLV2_CIPHER_LEN];
5434 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
5436 if (PACKET_remaining(cipher_suites) == 0) {
5438 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_BYTES_TO_CIPHER_LIST,
5439 SSL_R_NO_CIPHERS_SPECIFIED);
5441 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_NO_CIPHERS_SPECIFIED);
5445 if (PACKET_remaining(cipher_suites) % n != 0) {
5447 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,
5448 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
5450 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST,
5451 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
5455 sk = sk_SSL_CIPHER_new_null();
5456 scsvs = sk_SSL_CIPHER_new_null();
5457 if (sk == NULL || scsvs == NULL) {
5459 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,
5460 ERR_R_MALLOC_FAILURE);
5462 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
5466 while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
5468 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
5469 * first byte set to zero, while true SSLv2 ciphers have a non-zero
5470 * first byte. We don't support any true SSLv2 ciphers, so skip them.
5472 if (sslv2format && cipher[0] != '\0')
5475 /* For SSLv2-compat, ignore leading 0-byte. */
5476 c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
5478 if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
5479 (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
5481 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
5482 SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
5484 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
5489 if (PACKET_remaining(cipher_suites) > 0) {
5491 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,
5494 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_BAD_LENGTH);
5501 sk_SSL_CIPHER_free(sk);
5502 if (scsvs_out != NULL)
5505 sk_SSL_CIPHER_free(scsvs);
5508 sk_SSL_CIPHER_free(sk);
5509 sk_SSL_CIPHER_free(scsvs);
5513 int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
5515 ctx->max_early_data = max_early_data;
5520 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
5522 return ctx->max_early_data;
5525 int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
5527 s->max_early_data = max_early_data;
5532 uint32_t SSL_get_max_early_data(const SSL *s)
5534 return s->max_early_data;
5537 int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
5539 ctx->recv_max_early_data = recv_max_early_data;
5544 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
5546 return ctx->recv_max_early_data;
5549 int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
5551 s->recv_max_early_data = recv_max_early_data;
5556 uint32_t SSL_get_recv_max_early_data(const SSL *s)
5558 return s->recv_max_early_data;
5561 __owur unsigned int ssl_get_max_send_fragment(const SSL *ssl)
5563 /* Return any active Max Fragment Len extension */
5564 if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session))
5565 return GET_MAX_FRAGMENT_LENGTH(ssl->session);
5567 /* return current SSL connection setting */
5568 return ssl->max_send_fragment;
5571 __owur unsigned int ssl_get_split_send_fragment(const SSL *ssl)
5573 /* Return a value regarding an active Max Fragment Len extension */
5574 if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session)
5575 && ssl->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(ssl->session))
5576 return GET_MAX_FRAGMENT_LENGTH(ssl->session);
5578 /* else limit |split_send_fragment| to current |max_send_fragment| */
5579 if (ssl->split_send_fragment > ssl->max_send_fragment)
5580 return ssl->max_send_fragment;
5582 /* return current SSL connection setting */
5583 return ssl->split_send_fragment;
5586 int SSL_stateless(SSL *s)
5590 /* Ensure there is no state left over from a previous invocation */
5596 s->s3->flags |= TLS1_FLAGS_STATELESS;
5597 ret = SSL_accept(s);
5598 s->s3->flags &= ~TLS1_FLAGS_STATELESS;
5600 if (ret > 0 && s->ext.cookieok)
5603 if (s->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(s))
5609 void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
5611 ctx->pha_enabled = val;
5614 void SSL_set_post_handshake_auth(SSL *ssl, int val)
5616 ssl->pha_enabled = val;
5619 int SSL_verify_client_post_handshake(SSL *ssl)
5621 if (!SSL_IS_TLS13(ssl)) {
5622 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_WRONG_SSL_VERSION);
5626 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_NOT_SERVER);
5630 if (!SSL_is_init_finished(ssl)) {
5631 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_STILL_IN_INIT);
5635 switch (ssl->post_handshake_auth) {
5637 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_EXTENSION_NOT_RECEIVED);
5640 case SSL_PHA_EXT_SENT:
5641 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, ERR_R_INTERNAL_ERROR);
5643 case SSL_PHA_EXT_RECEIVED:
5645 case SSL_PHA_REQUEST_PENDING:
5646 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_REQUEST_PENDING);
5648 case SSL_PHA_REQUESTED:
5649 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_REQUEST_SENT);
5653 ssl->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
5655 /* checks verify_mode and algorithm_auth */
5656 if (!send_certificate_request(ssl)) {
5657 ssl->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
5658 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_INVALID_CONFIG);
5662 ossl_statem_set_in_init(ssl, 1);
5666 int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
5667 SSL_CTX_generate_session_ticket_fn gen_cb,
5668 SSL_CTX_decrypt_session_ticket_fn dec_cb,
5671 ctx->generate_ticket_cb = gen_cb;
5672 ctx->decrypt_ticket_cb = dec_cb;
5673 ctx->ticket_cb_data = arg;
5677 void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
5678 SSL_allow_early_data_cb_fn cb,
5681 ctx->allow_early_data_cb = cb;
5682 ctx->allow_early_data_cb_data = arg;
5685 void SSL_set_allow_early_data_cb(SSL *s,
5686 SSL_allow_early_data_cb_fn cb,
5689 s->allow_early_data_cb = cb;
5690 s->allow_early_data_cb_data = arg;