2 * ! \file ssl/ssl_lib.c \brief Version independent SSL functions.
4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
7 * This package is an SSL implementation written
8 * by Eric Young (eay@cryptsoft.com).
9 * The implementation was written so as to conform with Netscapes SSL.
11 * This library is free for commercial and non-commercial use as long as
12 * the following conditions are aheared to. The following conditions
13 * apply to all code found in this distribution, be it the RC4, RSA,
14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
15 * included with this distribution is covered by the same copyright terms
16 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
18 * Copyright remains Eric Young's, and as such any Copyright notices in
19 * the code are not to be removed.
20 * If this package is used in a product, Eric Young should be given attribution
21 * as the author of the parts of the library used.
22 * This can be in the form of a textual message at program startup or
23 * in documentation (online or textual) provided with the package.
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
28 * 1. Redistributions of source code must retain the copyright
29 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 * 3. All advertising materials mentioning features or use of this software
34 * must display the following acknowledgement:
35 * "This product includes cryptographic software written by
36 * Eric Young (eay@cryptsoft.com)"
37 * The word 'cryptographic' can be left out if the rouines from the library
38 * being used are not cryptographic related :-).
39 * 4. If you include any Windows specific code (or a derivative thereof) from
40 * the apps directory (application code) you must include an acknowledgement:
41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * The licence and distribution terms for any publically available version or
56 * derivative of this code cannot be changed. i.e. this code cannot simply be
57 * copied and put under another distribution licence
58 * [including the GNU Public Licence.]
60 /* ====================================================================
61 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
67 * 1. Redistributions of source code must retain the above copyright
68 * notice, this list of conditions and the following disclaimer.
70 * 2. Redistributions in binary form must reproduce the above copyright
71 * notice, this list of conditions and the following disclaimer in
72 * the documentation and/or other materials provided with the
75 * 3. All advertising materials mentioning features or use of this
76 * software must display the following acknowledgment:
77 * "This product includes software developed by the OpenSSL Project
78 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
80 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
81 * endorse or promote products derived from this software without
82 * prior written permission. For written permission, please contact
83 * openssl-core@openssl.org.
85 * 5. Products derived from this software may not be called "OpenSSL"
86 * nor may "OpenSSL" appear in their names without prior written
87 * permission of the OpenSSL Project.
89 * 6. Redistributions of any form whatsoever must retain the following
91 * "This product includes software developed by the OpenSSL Project
92 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
94 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
95 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
97 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
98 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
99 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
100 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
101 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
102 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
103 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
104 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
105 * OF THE POSSIBILITY OF SUCH DAMAGE.
106 * ====================================================================
108 * This product includes cryptographic software written by Eric Young
109 * (eay@cryptsoft.com). This product includes software written by Tim
110 * Hudson (tjh@cryptsoft.com).
113 /* ====================================================================
114 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
115 * ECC cipher suite support in OpenSSL originally developed by
116 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
118 /* ====================================================================
119 * Copyright 2005 Nokia. All rights reserved.
121 * The portions of the attached software ("Contribution") is developed by
122 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
125 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
126 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
127 * support (see RFC 4279) to OpenSSL.
129 * No patent licenses or other rights except those expressly stated in
130 * the OpenSSL open source license shall be deemed granted or received
131 * expressly, by implication, estoppel, or otherwise.
133 * No assurances are provided by Nokia that the Contribution does not
134 * infringe the patent or other intellectual property rights of any third
135 * party or that the license provides you with all the necessary rights
136 * to make use of the Contribution.
138 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
139 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
140 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
141 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
149 #include "ssl_locl.h"
150 #include <openssl/objects.h>
151 #include <openssl/lhash.h>
152 #include <openssl/x509v3.h>
153 #include <openssl/rand.h>
154 #include <openssl/ocsp.h>
155 #include <openssl/dh.h>
156 #include <openssl/engine.h>
157 #include <openssl/async.h>
158 #include <openssl/ct.h>
160 const char SSL_version_str[] = OPENSSL_VERSION_TEXT;
162 SSL3_ENC_METHOD ssl3_undef_enc_method = {
164 * evil casts, but these functions are only called if there's a library
167 (int (*)(SSL *, SSL3_RECORD *, unsigned int, int))ssl_undefined_function,
168 (int (*)(SSL *, SSL3_RECORD *, unsigned char *, int))ssl_undefined_function,
169 ssl_undefined_function,
170 (int (*)(SSL *, unsigned char *, unsigned char *, int))
171 ssl_undefined_function,
172 (int (*)(SSL *, int))ssl_undefined_function,
173 (int (*)(SSL *, const char *, int, unsigned char *))
174 ssl_undefined_function,
175 0, /* finish_mac_length */
176 NULL, /* client_finished_label */
177 0, /* client_finished_label_len */
178 NULL, /* server_finished_label */
179 0, /* server_finished_label_len */
180 (int (*)(int))ssl_undefined_function,
181 (int (*)(SSL *, unsigned char *, size_t, const char *,
182 size_t, const unsigned char *, size_t,
183 int use_context))ssl_undefined_function,
186 struct ssl_async_args {
190 enum { READFUNC, WRITEFUNC, OTHERFUNC} type;
192 int (*func_read)(SSL *, void *, int);
193 int (*func_write)(SSL *, const void *, int);
194 int (*func_other)(SSL *);
198 static const struct {
203 { DANETLS_MATCHING_FULL, 0, NID_undef },
204 { DANETLS_MATCHING_2256, 1, NID_sha256 },
205 { DANETLS_MATCHING_2512, 2, NID_sha512 },
208 static int dane_ctx_enable(struct dane_ctx_st *dctx)
210 const EVP_MD **mdevp;
212 uint8_t mdmax = DANETLS_MATCHING_LAST;
213 int n = ((int) mdmax) + 1; /* int to handle PrivMatch(255) */
216 mdevp = OPENSSL_zalloc(n * sizeof(*mdevp));
217 mdord = OPENSSL_zalloc(n * sizeof(*mdord));
219 if (mdord == NULL || mdevp == NULL) {
221 SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE);
225 /* Install default entries */
226 for (i = 0; i < OSSL_NELEM(dane_mds); ++i) {
229 if (dane_mds[i].nid == NID_undef ||
230 (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL)
232 mdevp[dane_mds[i].mtype] = md;
233 mdord[dane_mds[i].mtype] = dane_mds[i].ord;
243 static void dane_ctx_final(struct dane_ctx_st *dctx)
245 OPENSSL_free(dctx->mdevp);
248 OPENSSL_free(dctx->mdord);
253 static void tlsa_free(danetls_record *t)
257 OPENSSL_free(t->data);
258 EVP_PKEY_free(t->spki);
262 static void dane_final(struct dane_st *dane)
264 sk_danetls_record_pop_free(dane->trecs, tlsa_free);
267 sk_X509_pop_free(dane->certs, X509_free);
270 X509_free(dane->mcert);
278 * dane_copy - Copy dane configuration, sans verification state.
280 static int ssl_dane_dup(SSL *to, SSL *from)
285 if (!DANETLS_ENABLED(&from->dane))
288 dane_final(&to->dane);
290 num = sk_danetls_record_num(from->dane.trecs);
291 for (i = 0; i < num; ++i) {
292 danetls_record *t = sk_danetls_record_value(from->dane.trecs, i);
293 if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype,
294 t->data, t->dlen) <= 0)
300 static int dane_mtype_set(
301 struct dane_ctx_st *dctx,
308 if (mtype == DANETLS_MATCHING_FULL && md != NULL) {
309 SSLerr(SSL_F_DANE_MTYPE_SET,
310 SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL);
314 if (mtype > dctx->mdmax) {
315 const EVP_MD **mdevp;
317 int n = ((int) mtype) + 1;
319 mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp));
321 SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE);
326 mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord));
328 SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE);
333 /* Zero-fill any gaps */
334 for (i = dctx->mdmax+1; i < mtype; ++i) {
342 dctx->mdevp[mtype] = md;
343 /* Coerce ordinal of disabled matching types to 0 */
344 dctx->mdord[mtype] = (md == NULL) ? 0 : ord;
349 static const EVP_MD *tlsa_md_get(struct dane_st *dane, uint8_t mtype)
351 if (mtype > dane->dctx->mdmax)
353 return dane->dctx->mdevp[mtype];
356 static int dane_tlsa_add(
357 struct dane_st *dane,
365 const EVP_MD *md = NULL;
366 int ilen = (int)dlen;
369 if (dane->trecs == NULL) {
370 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED);
374 if (ilen < 0 || dlen != (size_t)ilen) {
375 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH);
379 if (usage > DANETLS_USAGE_LAST) {
380 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE);
384 if (selector > DANETLS_SELECTOR_LAST) {
385 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR);
389 if (mtype != DANETLS_MATCHING_FULL) {
390 md = tlsa_md_get(dane, mtype);
392 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE);
397 if (md != NULL && dlen != (size_t)EVP_MD_size(md)) {
398 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH);
402 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA);
406 if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) {
407 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
412 t->selector = selector;
414 t->data = OPENSSL_malloc(ilen);
415 if (t->data == NULL) {
417 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
420 memcpy(t->data, data, ilen);
423 /* Validate and cache full certificate or public key */
424 if (mtype == DANETLS_MATCHING_FULL) {
425 const unsigned char *p = data;
427 EVP_PKEY *pkey = NULL;
430 case DANETLS_SELECTOR_CERT:
431 if (!d2i_X509(&cert, &p, dlen) || p < data ||
432 dlen != (size_t)(p - data)) {
434 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
437 if (X509_get0_pubkey(cert) == NULL) {
439 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
443 if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
449 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
450 * records that contain full certificates of trust-anchors that are
451 * not present in the wire chain. For usage PKIX-TA(0), we augment
452 * the chain with untrusted Full(0) certificates from DNS, in case
453 * they are missing from the chain.
455 if ((dane->certs == NULL &&
456 (dane->certs = sk_X509_new_null()) == NULL) ||
457 !sk_X509_push(dane->certs, cert)) {
458 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
465 case DANETLS_SELECTOR_SPKI:
466 if (!d2i_PUBKEY(&pkey, &p, dlen) || p < data ||
467 dlen != (size_t)(p - data)) {
469 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
474 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
475 * records that contain full bare keys of trust-anchors that are
476 * not present in the wire chain.
478 if (usage == DANETLS_USAGE_DANE_TA)
487 * Find the right insertion point for the new record.
489 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
490 * they can be processed first, as they require no chain building, and no
491 * expiration or hostname checks. Because DANE-EE(3) is numerically
492 * largest, this is accomplished via descending sort by "usage".
494 * We also sort in descending order by matching ordinal to simplify
495 * the implementation of digest agility in the verification code.
497 * The choice of order for the selector is not significant, so we
498 * use the same descending order for consistency.
500 for (i = 0; i < sk_danetls_record_num(dane->trecs); ++i) {
501 danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
502 if (rec->usage > usage)
504 if (rec->usage < usage)
506 if (rec->selector > selector)
508 if (rec->selector < selector)
510 if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
515 if (!sk_danetls_record_insert(dane->trecs, t, i)) {
517 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
520 dane->umask |= DANETLS_USAGE_BIT(usage);
525 static void clear_ciphers(SSL *s)
527 /* clear the current cipher */
528 ssl_clear_cipher_ctx(s);
529 ssl_clear_hash_ctx(&s->read_hash);
530 ssl_clear_hash_ctx(&s->write_hash);
533 int SSL_clear(SSL *s)
535 if (s->method == NULL) {
536 SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED);
540 if (ssl_clear_bad_session(s)) {
541 SSL_SESSION_free(s->session);
549 if (s->renegotiate) {
550 SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR);
554 ossl_statem_clear(s);
556 s->version = s->method->version;
557 s->client_version = s->version;
558 s->rwstate = SSL_NOTHING;
560 BUF_MEM_free(s->init_buf);
565 /* Reset DANE verification result state */
568 X509_free(s->dane.mcert);
569 s->dane.mcert = NULL;
570 s->dane.mtlsa = NULL;
572 /* Clear the verification result peername */
573 X509_VERIFY_PARAM_move_peername(s->param, NULL);
576 * Check to see if we were changed into a different method, if so, revert
577 * back if we are not doing session-id reuse.
579 if (!ossl_statem_get_in_handshake(s) && (s->session == NULL)
580 && (s->method != s->ctx->method)) {
581 s->method->ssl_free(s);
582 s->method = s->ctx->method;
583 if (!s->method->ssl_new(s))
586 s->method->ssl_clear(s);
588 RECORD_LAYER_clear(&s->rlayer);
593 /** Used to change an SSL_CTXs default SSL method type */
594 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
596 STACK_OF(SSL_CIPHER) *sk;
600 sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list),
601 &(ctx->cipher_list_by_id),
602 SSL_DEFAULT_CIPHER_LIST, ctx->cert);
603 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
604 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,
605 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
611 SSL *SSL_new(SSL_CTX *ctx)
616 SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
619 if (ctx->method == NULL) {
620 SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
624 s = OPENSSL_zalloc(sizeof(*s));
628 s->lock = CRYPTO_THREAD_lock_new();
629 if (s->lock == NULL) {
630 SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
635 RECORD_LAYER_init(&s->rlayer, s);
637 s->options = ctx->options;
638 s->min_proto_version = ctx->min_proto_version;
639 s->max_proto_version = ctx->max_proto_version;
641 s->max_cert_list = ctx->max_cert_list;
645 * Earlier library versions used to copy the pointer to the CERT, not
646 * its contents; only when setting new parameters for the per-SSL
647 * copy, ssl_cert_new would be called (and the direct reference to
648 * the per-SSL_CTX settings would be lost, but those still were
649 * indirectly accessed for various purposes, and for that reason they
650 * used to be known as s->ctx->default_cert). Now we don't look at the
651 * SSL_CTX's CERT after having duplicated it once.
653 s->cert = ssl_cert_dup(ctx->cert);
657 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
658 s->msg_callback = ctx->msg_callback;
659 s->msg_callback_arg = ctx->msg_callback_arg;
660 s->verify_mode = ctx->verify_mode;
661 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
662 s->sid_ctx_length = ctx->sid_ctx_length;
663 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
664 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
665 s->verify_callback = ctx->default_verify_callback;
666 s->generate_session_id = ctx->generate_session_id;
668 s->param = X509_VERIFY_PARAM_new();
669 if (s->param == NULL)
671 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
672 s->quiet_shutdown = ctx->quiet_shutdown;
673 s->max_send_fragment = ctx->max_send_fragment;
674 s->split_send_fragment = ctx->split_send_fragment;
675 s->max_pipelines = ctx->max_pipelines;
676 if (s->max_pipelines > 1)
677 RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
678 if (ctx->default_read_buf_len > 0)
679 SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len);
683 s->tlsext_debug_cb = 0;
684 s->tlsext_debug_arg = NULL;
685 s->tlsext_ticket_expected = 0;
686 s->tlsext_status_type = -1;
687 s->tlsext_status_expected = 0;
688 s->tlsext_ocsp_ids = NULL;
689 s->tlsext_ocsp_exts = NULL;
690 s->tlsext_ocsp_resp = NULL;
691 s->tlsext_ocsp_resplen = -1;
693 s->initial_ctx = ctx;
694 # ifndef OPENSSL_NO_EC
695 if (ctx->tlsext_ecpointformatlist) {
696 s->tlsext_ecpointformatlist =
697 OPENSSL_memdup(ctx->tlsext_ecpointformatlist,
698 ctx->tlsext_ecpointformatlist_length);
699 if (!s->tlsext_ecpointformatlist)
701 s->tlsext_ecpointformatlist_length =
702 ctx->tlsext_ecpointformatlist_length;
704 if (ctx->tlsext_ellipticcurvelist) {
705 s->tlsext_ellipticcurvelist =
706 OPENSSL_memdup(ctx->tlsext_ellipticcurvelist,
707 ctx->tlsext_ellipticcurvelist_length);
708 if (!s->tlsext_ellipticcurvelist)
710 s->tlsext_ellipticcurvelist_length =
711 ctx->tlsext_ellipticcurvelist_length;
714 # ifndef OPENSSL_NO_NEXTPROTONEG
715 s->next_proto_negotiated = NULL;
718 if (s->ctx->alpn_client_proto_list) {
719 s->alpn_client_proto_list =
720 OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
721 if (s->alpn_client_proto_list == NULL)
723 memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
724 s->ctx->alpn_client_proto_list_len);
725 s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
728 s->verified_chain = NULL;
729 s->verify_result = X509_V_OK;
731 s->default_passwd_callback = ctx->default_passwd_callback;
732 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
734 s->method = ctx->method;
736 if (!s->method->ssl_new(s))
739 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
744 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
746 #ifndef OPENSSL_NO_PSK
747 s->psk_client_callback = ctx->psk_client_callback;
748 s->psk_server_callback = ctx->psk_server_callback;
753 #ifndef OPENSSL_NO_CT
754 if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback,
755 ctx->ct_validation_callback_arg))
762 SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
766 void SSL_up_ref(SSL *s)
769 CRYPTO_atomic_add(&s->references, 1, &i, s->lock);
772 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
773 unsigned int sid_ctx_len)
775 if (sid_ctx_len > sizeof ctx->sid_ctx) {
776 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
777 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
780 ctx->sid_ctx_length = sid_ctx_len;
781 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
786 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
787 unsigned int sid_ctx_len)
789 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
790 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
791 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
794 ssl->sid_ctx_length = sid_ctx_len;
795 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
800 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
802 CRYPTO_THREAD_write_lock(ctx->lock);
803 ctx->generate_session_id = cb;
804 CRYPTO_THREAD_unlock(ctx->lock);
808 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
810 CRYPTO_THREAD_write_lock(ssl->lock);
811 ssl->generate_session_id = cb;
812 CRYPTO_THREAD_unlock(ssl->lock);
816 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
820 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
821 * we can "construct" a session to give us the desired check - ie. to
822 * find if there's a session in the hash table that would conflict with
823 * any new session built out of this id/id_len and the ssl_version in use
828 if (id_len > sizeof r.session_id)
831 r.ssl_version = ssl->version;
832 r.session_id_length = id_len;
833 memcpy(r.session_id, id, id_len);
835 CRYPTO_THREAD_read_lock(ssl->ctx->lock);
836 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
837 CRYPTO_THREAD_unlock(ssl->ctx->lock);
841 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
843 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
846 int SSL_set_purpose(SSL *s, int purpose)
848 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
851 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
853 return X509_VERIFY_PARAM_set_trust(s->param, trust);
856 int SSL_set_trust(SSL *s, int trust)
858 return X509_VERIFY_PARAM_set_trust(s->param, trust);
861 int SSL_set1_host(SSL *s, const char *hostname)
863 return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0);
866 int SSL_add1_host(SSL *s, const char *hostname)
868 return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0);
871 void SSL_set_hostflags(SSL *s, unsigned int flags)
873 X509_VERIFY_PARAM_set_hostflags(s->param, flags);
876 const char *SSL_get0_peername(SSL *s)
878 return X509_VERIFY_PARAM_get0_peername(s->param);
881 int SSL_CTX_dane_enable(SSL_CTX *ctx)
883 return dane_ctx_enable(&ctx->dane);
886 int SSL_dane_enable(SSL *s, const char *basedomain)
888 struct dane_st *dane = &s->dane;
890 if (s->ctx->dane.mdmax == 0) {
891 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED);
894 if (dane->trecs != NULL) {
895 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED);
900 * Default SNI name. This rejects empty names, while set1_host below
901 * accepts them and disables host name checks. To avoid side-effects with
902 * invalid input, set the SNI name first.
904 if (s->tlsext_hostname == NULL) {
905 if (!SSL_set_tlsext_host_name(s, basedomain)) {
906 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
911 /* Primary RFC6125 reference identifier */
912 if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) {
913 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
919 dane->dctx = &s->ctx->dane;
920 dane->trecs = sk_danetls_record_new_null();
922 if (dane->trecs == NULL) {
923 SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE);
929 int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
931 struct dane_st *dane = &s->dane;
933 if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK)
937 *mcert = dane->mcert;
939 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
944 int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
945 uint8_t *mtype, unsigned const char **data, size_t *dlen)
947 struct dane_st *dane = &s->dane;
949 if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK)
953 *usage = dane->mtlsa->usage;
955 *selector = dane->mtlsa->selector;
957 *mtype = dane->mtlsa->mtype;
959 *data = dane->mtlsa->data;
961 *dlen = dane->mtlsa->dlen;
966 struct dane_st *SSL_get0_dane(SSL *s)
971 int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
972 uint8_t mtype, unsigned char *data, size_t dlen)
974 return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen);
977 int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype, uint8_t ord)
979 return dane_mtype_set(&ctx->dane, md, mtype, ord);
982 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
984 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
987 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
989 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
992 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
997 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
1002 void SSL_certs_clear(SSL *s)
1004 ssl_cert_clear_certs(s->cert);
1007 void SSL_free(SSL *s)
1014 CRYPTO_atomic_add(&s->references, -1, &i, s->lock);
1015 REF_PRINT_COUNT("SSL", s);
1018 REF_ASSERT_ISNT(i < 0);
1020 X509_VERIFY_PARAM_free(s->param);
1021 dane_final(&s->dane);
1022 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1024 if (s->bbio != NULL) {
1025 /* If the buffering BIO is in place, pop it off */
1026 if (s->bbio == s->wbio) {
1027 s->wbio = BIO_pop(s->wbio);
1032 BIO_free_all(s->rbio);
1033 if (s->wbio != s->rbio)
1034 BIO_free_all(s->wbio);
1036 BUF_MEM_free(s->init_buf);
1038 /* add extra stuff */
1039 sk_SSL_CIPHER_free(s->cipher_list);
1040 sk_SSL_CIPHER_free(s->cipher_list_by_id);
1042 /* Make the next call work :-) */
1043 if (s->session != NULL) {
1044 ssl_clear_bad_session(s);
1045 SSL_SESSION_free(s->session);
1050 ssl_cert_free(s->cert);
1051 /* Free up if allocated */
1053 OPENSSL_free(s->tlsext_hostname);
1054 SSL_CTX_free(s->initial_ctx);
1055 #ifndef OPENSSL_NO_EC
1056 OPENSSL_free(s->tlsext_ecpointformatlist);
1057 OPENSSL_free(s->tlsext_ellipticcurvelist);
1058 #endif /* OPENSSL_NO_EC */
1059 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);
1060 #ifndef OPENSSL_NO_OCSP
1061 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
1063 #ifndef OPENSSL_NO_CT
1064 SCT_LIST_free(s->scts);
1065 OPENSSL_free(s->tlsext_scts);
1067 OPENSSL_free(s->tlsext_ocsp_resp);
1068 OPENSSL_free(s->alpn_client_proto_list);
1070 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);
1072 sk_X509_pop_free(s->verified_chain, X509_free);
1074 if (s->method != NULL)
1075 s->method->ssl_free(s);
1077 RECORD_LAYER_release(&s->rlayer);
1079 SSL_CTX_free(s->ctx);
1081 ASYNC_WAIT_CTX_free(s->waitctx);
1083 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1084 OPENSSL_free(s->next_proto_negotiated);
1087 #ifndef OPENSSL_NO_SRTP
1088 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
1091 CRYPTO_THREAD_lock_free(s->lock);
1096 void SSL_set_rbio(SSL *s, BIO *rbio)
1098 if (s->rbio != rbio)
1099 BIO_free_all(s->rbio);
1103 void SSL_set_wbio(SSL *s, BIO *wbio)
1106 * If the output buffering BIO is still in place, remove it
1108 if (s->bbio != NULL) {
1109 if (s->wbio == s->bbio) {
1110 s->wbio = BIO_next(s->wbio);
1111 BIO_set_next(s->bbio, NULL);
1114 if (s->wbio != wbio && s->rbio != s->wbio)
1115 BIO_free_all(s->wbio);
1119 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1121 SSL_set_wbio(s, wbio);
1122 SSL_set_rbio(s, rbio);
1125 BIO *SSL_get_rbio(const SSL *s)
1130 BIO *SSL_get_wbio(const SSL *s)
1135 int SSL_get_fd(const SSL *s)
1137 return (SSL_get_rfd(s));
1140 int SSL_get_rfd(const SSL *s)
1145 b = SSL_get_rbio(s);
1146 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1148 BIO_get_fd(r, &ret);
1152 int SSL_get_wfd(const SSL *s)
1157 b = SSL_get_wbio(s);
1158 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1160 BIO_get_fd(r, &ret);
1164 #ifndef OPENSSL_NO_SOCK
1165 int SSL_set_fd(SSL *s, int fd)
1170 bio = BIO_new(BIO_s_socket());
1173 SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
1176 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1177 SSL_set_bio(s, bio, bio);
1183 int SSL_set_wfd(SSL *s, int fd)
1188 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
1189 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) {
1190 bio = BIO_new(BIO_s_socket());
1193 SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
1196 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1197 SSL_set_bio(s, SSL_get_rbio(s), bio);
1199 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s));
1205 int SSL_set_rfd(SSL *s, int fd)
1210 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
1211 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) {
1212 bio = BIO_new(BIO_s_socket());
1215 SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
1218 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1219 SSL_set_bio(s, bio, SSL_get_wbio(s));
1221 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s));
1228 /* return length of latest Finished message we sent, copy to 'buf' */
1229 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
1233 if (s->s3 != NULL) {
1234 ret = s->s3->tmp.finish_md_len;
1237 memcpy(buf, s->s3->tmp.finish_md, count);
1242 /* return length of latest Finished message we expected, copy to 'buf' */
1243 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
1247 if (s->s3 != NULL) {
1248 ret = s->s3->tmp.peer_finish_md_len;
1251 memcpy(buf, s->s3->tmp.peer_finish_md, count);
1256 int SSL_get_verify_mode(const SSL *s)
1258 return (s->verify_mode);
1261 int SSL_get_verify_depth(const SSL *s)
1263 return X509_VERIFY_PARAM_get_depth(s->param);
1266 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
1267 return (s->verify_callback);
1270 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
1272 return (ctx->verify_mode);
1275 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
1277 return X509_VERIFY_PARAM_get_depth(ctx->param);
1280 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
1281 return (ctx->default_verify_callback);
1284 void SSL_set_verify(SSL *s, int mode,
1285 int (*callback) (int ok, X509_STORE_CTX *ctx))
1287 s->verify_mode = mode;
1288 if (callback != NULL)
1289 s->verify_callback = callback;
1292 void SSL_set_verify_depth(SSL *s, int depth)
1294 X509_VERIFY_PARAM_set_depth(s->param, depth);
1297 void SSL_set_read_ahead(SSL *s, int yes)
1299 RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
1302 int SSL_get_read_ahead(const SSL *s)
1304 return RECORD_LAYER_get_read_ahead(&s->rlayer);
1307 int SSL_pending(const SSL *s)
1310 * SSL_pending cannot work properly if read-ahead is enabled
1311 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1312 * impossible to fix since SSL_pending cannot report errors that may be
1313 * observed while scanning the new data. (Note that SSL_pending() is
1314 * often used as a boolean value, so we'd better not return -1.)
1316 return (s->method->ssl_pending(s));
1319 int SSL_has_pending(const SSL *s)
1322 * Similar to SSL_pending() but returns a 1 to indicate that we have
1323 * unprocessed data available or 0 otherwise (as opposed to the number of
1324 * bytes available). Unlike SSL_pending() this will take into account
1325 * read_ahead data. A 1 return simply indicates that we have unprocessed
1326 * data. That data may not result in any application data, or we may fail
1327 * to parse the records for some reason.
1332 return RECORD_LAYER_read_pending(&s->rlayer);
1335 X509 *SSL_get_peer_certificate(const SSL *s)
1339 if ((s == NULL) || (s->session == NULL))
1342 r = s->session->peer;
1352 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
1356 if ((s == NULL) || (s->session == NULL))
1359 r = s->session->peer_chain;
1362 * If we are a client, cert_chain includes the peer's own certificate; if
1363 * we are a server, it does not.
1370 * Now in theory, since the calling process own 't' it should be safe to
1371 * modify. We need to be able to read f without being hassled
1373 int SSL_copy_session_id(SSL *t, const SSL *f)
1376 /* Do we need to to SSL locking? */
1377 if (!SSL_set_session(t, SSL_get_session(f))) {
1382 * what if we are setup for one protocol version but want to talk another
1384 if (t->method != f->method) {
1385 t->method->ssl_free(t);
1386 t->method = f->method;
1387 if (t->method->ssl_new(t) == 0)
1391 CRYPTO_atomic_add(&f->cert->references, 1, &i, f->cert->lock);
1392 ssl_cert_free(t->cert);
1394 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) {
1401 /* Fix this so it checks all the valid key/cert options */
1402 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
1404 if ((ctx == NULL) ||
1405 (ctx->cert->key->x509 == NULL)) {
1406 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
1407 SSL_R_NO_CERTIFICATE_ASSIGNED);
1410 if (ctx->cert->key->privatekey == NULL) {
1411 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
1412 SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1415 return (X509_check_private_key
1416 (ctx->cert->key->x509, ctx->cert->key->privatekey));
1419 /* Fix this function so that it takes an optional type parameter */
1420 int SSL_check_private_key(const SSL *ssl)
1423 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
1426 if (ssl->cert->key->x509 == NULL) {
1427 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
1430 if (ssl->cert->key->privatekey == NULL) {
1431 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1434 return (X509_check_private_key(ssl->cert->key->x509,
1435 ssl->cert->key->privatekey));
1438 int SSL_waiting_for_async(SSL *s)
1446 int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
1448 ASYNC_WAIT_CTX *ctx = s->waitctx;
1452 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
1455 int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
1456 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
1458 ASYNC_WAIT_CTX *ctx = s->waitctx;
1462 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
1466 int SSL_accept(SSL *s)
1468 if (s->handshake_func == NULL) {
1469 /* Not properly initialized yet */
1470 SSL_set_accept_state(s);
1473 return SSL_do_handshake(s);
1476 int SSL_connect(SSL *s)
1478 if (s->handshake_func == NULL) {
1479 /* Not properly initialized yet */
1480 SSL_set_connect_state(s);
1483 return SSL_do_handshake(s);
1486 long SSL_get_default_timeout(const SSL *s)
1488 return (s->method->get_timeout());
1491 static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
1492 int (*func)(void *)) {
1494 if (s->waitctx == NULL) {
1495 s->waitctx = ASYNC_WAIT_CTX_new();
1496 if (s->waitctx == NULL)
1499 switch(ASYNC_start_job(&s->job, s->waitctx, &ret, func, args,
1500 sizeof(struct ssl_async_args))) {
1502 s->rwstate = SSL_NOTHING;
1503 SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC);
1506 s->rwstate = SSL_ASYNC_PAUSED;
1512 s->rwstate = SSL_NOTHING;
1513 SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR);
1514 /* Shouldn't happen */
1519 static int ssl_io_intern(void *vargs)
1521 struct ssl_async_args *args;
1526 args = (struct ssl_async_args *)vargs;
1530 switch (args->type) {
1532 return args->f.func_read(s, buf, num);
1534 return args->f.func_write(s, buf, num);
1536 return args->f.func_other(s);
1541 int SSL_read(SSL *s, void *buf, int num)
1543 if (s->handshake_func == NULL) {
1544 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
1548 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1549 s->rwstate = SSL_NOTHING;
1553 if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1554 struct ssl_async_args args;
1559 args.type = READFUNC;
1560 args.f.func_read = s->method->ssl_read;
1562 return ssl_start_async_job(s, &args, ssl_io_intern);
1564 return s->method->ssl_read(s, buf, num);
1568 int SSL_peek(SSL *s, void *buf, int num)
1570 if (s->handshake_func == NULL) {
1571 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
1575 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1578 if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1579 struct ssl_async_args args;
1584 args.type = READFUNC;
1585 args.f.func_read = s->method->ssl_peek;
1587 return ssl_start_async_job(s, &args, ssl_io_intern);
1589 return s->method->ssl_peek(s, buf, num);
1593 int SSL_write(SSL *s, const void *buf, int num)
1595 if (s->handshake_func == NULL) {
1596 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
1600 if (s->shutdown & SSL_SENT_SHUTDOWN) {
1601 s->rwstate = SSL_NOTHING;
1602 SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN);
1606 if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1607 struct ssl_async_args args;
1610 args.buf = (void *)buf;
1612 args.type = WRITEFUNC;
1613 args.f.func_write = s->method->ssl_write;
1615 return ssl_start_async_job(s, &args, ssl_io_intern);
1617 return s->method->ssl_write(s, buf, num);
1621 int SSL_shutdown(SSL *s)
1624 * Note that this function behaves differently from what one might
1625 * expect. Return values are 0 for no success (yet), 1 for success; but
1626 * calling it once is usually not enough, even if blocking I/O is used
1627 * (see ssl3_shutdown).
1630 if (s->handshake_func == NULL) {
1631 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1635 if (!SSL_in_init(s)) {
1636 if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1637 struct ssl_async_args args;
1640 args.type = OTHERFUNC;
1641 args.f.func_other = s->method->ssl_shutdown;
1643 return ssl_start_async_job(s, &args, ssl_io_intern);
1645 return s->method->ssl_shutdown(s);
1648 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT);
1653 int SSL_renegotiate(SSL *s)
1655 if (s->renegotiate == 0)
1660 return (s->method->ssl_renegotiate(s));
1663 int SSL_renegotiate_abbreviated(SSL *s)
1665 if (s->renegotiate == 0)
1670 return (s->method->ssl_renegotiate(s));
1673 int SSL_renegotiate_pending(SSL *s)
1676 * becomes true when negotiation is requested; false again once a
1677 * handshake has finished
1679 return (s->renegotiate != 0);
1682 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
1687 case SSL_CTRL_GET_READ_AHEAD:
1688 return (RECORD_LAYER_get_read_ahead(&s->rlayer));
1689 case SSL_CTRL_SET_READ_AHEAD:
1690 l = RECORD_LAYER_get_read_ahead(&s->rlayer);
1691 RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
1694 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1695 s->msg_callback_arg = parg;
1699 return (s->mode |= larg);
1700 case SSL_CTRL_CLEAR_MODE:
1701 return (s->mode &= ~larg);
1702 case SSL_CTRL_GET_MAX_CERT_LIST:
1703 return (s->max_cert_list);
1704 case SSL_CTRL_SET_MAX_CERT_LIST:
1705 l = s->max_cert_list;
1706 s->max_cert_list = larg;
1708 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1709 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1711 s->max_send_fragment = larg;
1712 if (s->max_send_fragment < s->split_send_fragment)
1713 s->split_send_fragment = s->max_send_fragment;
1715 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
1716 if ((unsigned int)larg > s->max_send_fragment || larg == 0)
1718 s->split_send_fragment = larg;
1720 case SSL_CTRL_SET_MAX_PIPELINES:
1721 if (larg < 1 || larg > SSL_MAX_PIPELINES)
1723 s->max_pipelines = larg;
1725 RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
1727 case SSL_CTRL_GET_RI_SUPPORT:
1729 return s->s3->send_connection_binding;
1732 case SSL_CTRL_CERT_FLAGS:
1733 return (s->cert->cert_flags |= larg);
1734 case SSL_CTRL_CLEAR_CERT_FLAGS:
1735 return (s->cert->cert_flags &= ~larg);
1737 case SSL_CTRL_GET_RAW_CIPHERLIST:
1739 if (s->s3->tmp.ciphers_raw == NULL)
1741 *(unsigned char **)parg = s->s3->tmp.ciphers_raw;
1742 return (int)s->s3->tmp.ciphers_rawlen;
1744 return TLS_CIPHER_LEN;
1746 case SSL_CTRL_GET_EXTMS_SUPPORT:
1747 if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s))
1749 if (s->session->flags & SSL_SESS_FLAG_EXTMS)
1753 case SSL_CTRL_SET_MIN_PROTO_VERSION:
1754 return ssl_set_version_bound(s->ctx->method->version, (int)larg,
1755 &s->min_proto_version);
1756 case SSL_CTRL_SET_MAX_PROTO_VERSION:
1757 return ssl_set_version_bound(s->ctx->method->version, (int)larg,
1758 &s->max_proto_version);
1760 return (s->method->ssl_ctrl(s, cmd, larg, parg));
1764 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
1767 case SSL_CTRL_SET_MSG_CALLBACK:
1768 s->msg_callback = (void (*)
1769 (int write_p, int version, int content_type,
1770 const void *buf, size_t len, SSL *ssl,
1775 return (s->method->ssl_callback_ctrl(s, cmd, fp));
1779 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1781 return ctx->sessions;
1784 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
1787 /* For some cases with ctx == NULL perform syntax checks */
1790 #ifndef OPENSSL_NO_EC
1791 case SSL_CTRL_SET_CURVES_LIST:
1792 return tls1_set_curves_list(NULL, NULL, parg);
1794 case SSL_CTRL_SET_SIGALGS_LIST:
1795 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1796 return tls1_set_sigalgs_list(NULL, parg, 0);
1803 case SSL_CTRL_GET_READ_AHEAD:
1804 return (ctx->read_ahead);
1805 case SSL_CTRL_SET_READ_AHEAD:
1806 l = ctx->read_ahead;
1807 ctx->read_ahead = larg;
1810 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1811 ctx->msg_callback_arg = parg;
1814 case SSL_CTRL_GET_MAX_CERT_LIST:
1815 return (ctx->max_cert_list);
1816 case SSL_CTRL_SET_MAX_CERT_LIST:
1817 l = ctx->max_cert_list;
1818 ctx->max_cert_list = larg;
1821 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1822 l = ctx->session_cache_size;
1823 ctx->session_cache_size = larg;
1825 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1826 return (ctx->session_cache_size);
1827 case SSL_CTRL_SET_SESS_CACHE_MODE:
1828 l = ctx->session_cache_mode;
1829 ctx->session_cache_mode = larg;
1831 case SSL_CTRL_GET_SESS_CACHE_MODE:
1832 return (ctx->session_cache_mode);
1834 case SSL_CTRL_SESS_NUMBER:
1835 return (lh_SSL_SESSION_num_items(ctx->sessions));
1836 case SSL_CTRL_SESS_CONNECT:
1837 return (ctx->stats.sess_connect);
1838 case SSL_CTRL_SESS_CONNECT_GOOD:
1839 return (ctx->stats.sess_connect_good);
1840 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1841 return (ctx->stats.sess_connect_renegotiate);
1842 case SSL_CTRL_SESS_ACCEPT:
1843 return (ctx->stats.sess_accept);
1844 case SSL_CTRL_SESS_ACCEPT_GOOD:
1845 return (ctx->stats.sess_accept_good);
1846 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1847 return (ctx->stats.sess_accept_renegotiate);
1848 case SSL_CTRL_SESS_HIT:
1849 return (ctx->stats.sess_hit);
1850 case SSL_CTRL_SESS_CB_HIT:
1851 return (ctx->stats.sess_cb_hit);
1852 case SSL_CTRL_SESS_MISSES:
1853 return (ctx->stats.sess_miss);
1854 case SSL_CTRL_SESS_TIMEOUTS:
1855 return (ctx->stats.sess_timeout);
1856 case SSL_CTRL_SESS_CACHE_FULL:
1857 return (ctx->stats.sess_cache_full);
1859 return (ctx->mode |= larg);
1860 case SSL_CTRL_CLEAR_MODE:
1861 return (ctx->mode &= ~larg);
1862 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1863 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1865 ctx->max_send_fragment = larg;
1866 if (ctx->max_send_fragment < ctx->split_send_fragment)
1867 ctx->split_send_fragment = ctx->split_send_fragment;
1869 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
1870 if ((unsigned int)larg > ctx->max_send_fragment || larg == 0)
1872 ctx->split_send_fragment = larg;
1874 case SSL_CTRL_SET_MAX_PIPELINES:
1875 if (larg < 1 || larg > SSL_MAX_PIPELINES)
1877 ctx->max_pipelines = larg;
1879 case SSL_CTRL_CERT_FLAGS:
1880 return (ctx->cert->cert_flags |= larg);
1881 case SSL_CTRL_CLEAR_CERT_FLAGS:
1882 return (ctx->cert->cert_flags &= ~larg);
1883 case SSL_CTRL_SET_MIN_PROTO_VERSION:
1884 return ssl_set_version_bound(ctx->method->version, (int)larg,
1885 &ctx->min_proto_version);
1886 case SSL_CTRL_SET_MAX_PROTO_VERSION:
1887 return ssl_set_version_bound(ctx->method->version, (int)larg,
1888 &ctx->max_proto_version);
1890 return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg));
1894 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
1897 case SSL_CTRL_SET_MSG_CALLBACK:
1898 ctx->msg_callback = (void (*)
1899 (int write_p, int version, int content_type,
1900 const void *buf, size_t len, SSL *ssl,
1905 return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp));
1909 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1918 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1919 const SSL_CIPHER *const *bp)
1921 if ((*ap)->id > (*bp)->id)
1923 if ((*ap)->id < (*bp)->id)
1928 /** return a STACK of the ciphers available for the SSL and in order of
1930 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1933 if (s->cipher_list != NULL) {
1934 return (s->cipher_list);
1935 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
1936 return (s->ctx->cipher_list);
1942 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
1944 if ((s == NULL) || (s->session == NULL) || !s->server)
1946 return s->session->ciphers;
1949 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
1951 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
1953 ciphers = SSL_get_ciphers(s);
1956 ssl_set_client_disabled(s);
1957 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
1958 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
1959 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) {
1961 sk = sk_SSL_CIPHER_new_null();
1964 if (!sk_SSL_CIPHER_push(sk, c)) {
1965 sk_SSL_CIPHER_free(sk);
1973 /** return a STACK of the ciphers available for the SSL and in order of
1975 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1978 if (s->cipher_list_by_id != NULL) {
1979 return (s->cipher_list_by_id);
1980 } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
1981 return (s->ctx->cipher_list_by_id);
1987 /** The old interface to get the same thing as SSL_get_ciphers() */
1988 const char *SSL_get_cipher_list(const SSL *s, int n)
1990 const SSL_CIPHER *c;
1991 STACK_OF(SSL_CIPHER) *sk;
1995 sk = SSL_get_ciphers(s);
1996 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1998 c = sk_SSL_CIPHER_value(sk, n);
2004 /** specify the ciphers to be used by default by the SSL_CTX */
2005 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
2007 STACK_OF(SSL_CIPHER) *sk;
2009 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list,
2010 &ctx->cipher_list_by_id, str, ctx->cert);
2012 * ssl_create_cipher_list may return an empty stack if it was unable to
2013 * find a cipher matching the given rule string (for example if the rule
2014 * string specifies a cipher which has been disabled). This is not an
2015 * error as far as ssl_create_cipher_list is concerned, and hence
2016 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2020 else if (sk_SSL_CIPHER_num(sk) == 0) {
2021 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
2027 /** specify the ciphers to be used by the SSL */
2028 int SSL_set_cipher_list(SSL *s, const char *str)
2030 STACK_OF(SSL_CIPHER) *sk;
2032 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list,
2033 &s->cipher_list_by_id, str, s->cert);
2034 /* see comment in SSL_CTX_set_cipher_list */
2037 else if (sk_SSL_CIPHER_num(sk) == 0) {
2038 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
2044 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len)
2047 STACK_OF(SSL_CIPHER) *sk;
2048 const SSL_CIPHER *c;
2051 if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2))
2055 sk = s->session->ciphers;
2057 if (sk_SSL_CIPHER_num(sk) == 0)
2060 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
2063 c = sk_SSL_CIPHER_value(sk, i);
2064 n = strlen(c->name);
2071 memcpy(p, c->name, n + 1);
2080 /** return a servername extension value if provided in Client Hello, or NULL.
2081 * So far, only host_name types are defined (RFC 3546).
2084 const char *SSL_get_servername(const SSL *s, const int type)
2086 if (type != TLSEXT_NAMETYPE_host_name)
2089 return s->session && !s->tlsext_hostname ?
2090 s->session->tlsext_hostname : s->tlsext_hostname;
2093 int SSL_get_servername_type(const SSL *s)
2096 && (!s->tlsext_hostname ? s->session->
2097 tlsext_hostname : s->tlsext_hostname))
2098 return TLSEXT_NAMETYPE_host_name;
2103 * SSL_select_next_proto implements the standard protocol selection. It is
2104 * expected that this function is called from the callback set by
2105 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2106 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2107 * not included in the length. A byte string of length 0 is invalid. No byte
2108 * string may be truncated. The current, but experimental algorithm for
2109 * selecting the protocol is: 1) If the server doesn't support NPN then this
2110 * is indicated to the callback. In this case, the client application has to
2111 * abort the connection or have a default application level protocol. 2) If
2112 * the server supports NPN, but advertises an empty list then the client
2113 * selects the first protcol in its list, but indicates via the API that this
2114 * fallback case was enacted. 3) Otherwise, the client finds the first
2115 * protocol in the server's list that it supports and selects this protocol.
2116 * This is because it's assumed that the server has better information about
2117 * which protocol a client should use. 4) If the client doesn't support any
2118 * of the server's advertised protocols, then this is treated the same as
2119 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2120 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2122 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
2123 const unsigned char *server,
2124 unsigned int server_len,
2125 const unsigned char *client,
2126 unsigned int client_len)
2129 const unsigned char *result;
2130 int status = OPENSSL_NPN_UNSUPPORTED;
2133 * For each protocol in server preference order, see if we support it.
2135 for (i = 0; i < server_len;) {
2136 for (j = 0; j < client_len;) {
2137 if (server[i] == client[j] &&
2138 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
2139 /* We found a match */
2140 result = &server[i];
2141 status = OPENSSL_NPN_NEGOTIATED;
2151 /* There's no overlap between our protocols and the server's list. */
2153 status = OPENSSL_NPN_NO_OVERLAP;
2156 *out = (unsigned char *)result + 1;
2157 *outlen = result[0];
2161 #ifndef OPENSSL_NO_NEXTPROTONEG
2163 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2164 * client's requested protocol for this connection and returns 0. If the
2165 * client didn't request any protocol, then *data is set to NULL. Note that
2166 * the client can request any protocol it chooses. The value returned from
2167 * this function need not be a member of the list of supported protocols
2168 * provided by the callback.
2170 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
2173 *data = s->next_proto_negotiated;
2177 *len = s->next_proto_negotiated_len;
2182 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
2183 * a TLS server needs a list of supported protocols for Next Protocol
2184 * Negotiation. The returned list must be in wire format. The list is
2185 * returned by setting |out| to point to it and |outlen| to its length. This
2186 * memory will not be modified, but one should assume that the SSL* keeps a
2187 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2188 * wishes to advertise. Otherwise, no such extension will be included in the
2191 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx,
2192 int (*cb) (SSL *ssl,
2195 unsigned int *outlen,
2196 void *arg), void *arg)
2198 ctx->next_protos_advertised_cb = cb;
2199 ctx->next_protos_advertised_cb_arg = arg;
2203 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2204 * client needs to select a protocol from the server's provided list. |out|
2205 * must be set to point to the selected protocol (which may be within |in|).
2206 * The length of the protocol name must be written into |outlen|. The
2207 * server's advertised protocols are provided in |in| and |inlen|. The
2208 * callback can assume that |in| is syntactically valid. The client must
2209 * select a protocol. It is fatal to the connection if this callback returns
2210 * a value other than SSL_TLSEXT_ERR_OK.
2212 void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx,
2213 int (*cb) (SSL *s, unsigned char **out,
2214 unsigned char *outlen,
2215 const unsigned char *in,
2217 void *arg), void *arg)
2219 ctx->next_proto_select_cb = cb;
2220 ctx->next_proto_select_cb_arg = arg;
2225 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2226 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2227 * length-prefixed strings). Returns 0 on success.
2229 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
2230 unsigned int protos_len)
2232 OPENSSL_free(ctx->alpn_client_proto_list);
2233 ctx->alpn_client_proto_list = OPENSSL_memdup(protos, protos_len);
2234 if (ctx->alpn_client_proto_list == NULL) {
2235 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE);
2238 ctx->alpn_client_proto_list_len = protos_len;
2244 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2245 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2246 * length-prefixed strings). Returns 0 on success.
2248 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
2249 unsigned int protos_len)
2251 OPENSSL_free(ssl->alpn_client_proto_list);
2252 ssl->alpn_client_proto_list = OPENSSL_memdup(protos, protos_len);
2253 if (ssl->alpn_client_proto_list == NULL) {
2254 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE);
2257 ssl->alpn_client_proto_list_len = protos_len;
2263 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2264 * called during ClientHello processing in order to select an ALPN protocol
2265 * from the client's list of offered protocols.
2267 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
2268 int (*cb) (SSL *ssl,
2269 const unsigned char **out,
2270 unsigned char *outlen,
2271 const unsigned char *in,
2273 void *arg), void *arg)
2275 ctx->alpn_select_cb = cb;
2276 ctx->alpn_select_cb_arg = arg;
2280 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
2281 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
2282 * (not including the leading length-prefix byte). If the server didn't
2283 * respond with a negotiated protocol then |*len| will be zero.
2285 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
2290 *data = ssl->s3->alpn_selected;
2294 *len = ssl->s3->alpn_selected_len;
2298 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
2299 const char *label, size_t llen,
2300 const unsigned char *p, size_t plen,
2303 if (s->version < TLS1_VERSION)
2306 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
2311 static unsigned long ssl_session_hash(const SSL_SESSION *a)
2316 ((unsigned int)a->session_id[0]) |
2317 ((unsigned int)a->session_id[1] << 8L) |
2318 ((unsigned long)a->session_id[2] << 16L) |
2319 ((unsigned long)a->session_id[3] << 24L);
2324 * NB: If this function (or indeed the hash function which uses a sort of
2325 * coarser function than this one) is changed, ensure
2326 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2327 * being able to construct an SSL_SESSION that will collide with any existing
2328 * session with a matching session ID.
2330 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
2332 if (a->ssl_version != b->ssl_version)
2334 if (a->session_id_length != b->session_id_length)
2336 return (memcmp(a->session_id, b->session_id, a->session_id_length));
2340 * These wrapper functions should remain rather than redeclaring
2341 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2342 * variable. The reason is that the functions aren't static, they're exposed
2346 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
2348 SSL_CTX *ret = NULL;
2351 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
2355 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
2358 if (FIPS_mode() && (meth->version < TLS1_VERSION)) {
2359 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_AT_LEAST_TLS_1_0_NEEDED_IN_FIPS_MODE);
2363 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2364 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
2367 ret = OPENSSL_zalloc(sizeof(*ret));
2372 ret->min_proto_version = 0;
2373 ret->max_proto_version = 0;
2374 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
2375 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
2376 /* We take the system default. */
2377 ret->session_timeout = meth->get_timeout();
2378 ret->references = 1;
2379 ret->lock = CRYPTO_THREAD_lock_new();
2380 if (ret->lock == NULL) {
2381 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
2385 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
2386 ret->verify_mode = SSL_VERIFY_NONE;
2387 if ((ret->cert = ssl_cert_new()) == NULL)
2390 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
2391 if (ret->sessions == NULL)
2393 ret->cert_store = X509_STORE_new();
2394 if (ret->cert_store == NULL)
2396 #ifndef OPENSSL_NO_CT
2397 ret->ctlog_store = CTLOG_STORE_new();
2398 if (ret->ctlog_store == NULL)
2401 if (!ssl_create_cipher_list(ret->method,
2402 &ret->cipher_list, &ret->cipher_list_by_id,
2403 SSL_DEFAULT_CIPHER_LIST, ret->cert)
2404 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
2405 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
2409 ret->param = X509_VERIFY_PARAM_new();
2410 if (ret->param == NULL)
2413 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
2414 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
2417 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
2418 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
2422 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL)
2425 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
2427 /* No compression for DTLS */
2428 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
2429 ret->comp_methods = SSL_COMP_get_compression_methods();
2431 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
2432 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
2434 /* Setup RFC4507 ticket keys */
2435 if ((RAND_bytes(ret->tlsext_tick_key_name, 16) <= 0)
2436 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
2437 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
2438 ret->options |= SSL_OP_NO_TICKET;
2440 #ifndef OPENSSL_NO_SRP
2441 if (!SSL_CTX_SRP_CTX_init(ret))
2444 #ifndef OPENSSL_NO_ENGINE
2445 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2446 # define eng_strx(x) #x
2447 # define eng_str(x) eng_strx(x)
2448 /* Use specific client engine automatically... ignore errors */
2451 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2454 ENGINE_load_builtin_engines();
2455 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2457 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
2463 * Default is to connect to non-RI servers. When RI is more widely
2464 * deployed might change this.
2466 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
2468 * Disable compression by default to prevent CRIME. Applications can
2469 * re-enable compression by configuring
2470 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
2471 * or by using the SSL_CONF library.
2473 ret->options |= SSL_OP_NO_COMPRESSION;
2477 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
2483 void SSL_CTX_up_ref(SSL_CTX *ctx)
2486 CRYPTO_atomic_add(&ctx->references, 1, &i, ctx->lock);
2489 void SSL_CTX_free(SSL_CTX *a)
2496 CRYPTO_atomic_add(&a->references, -1, &i, a->lock);
2497 REF_PRINT_COUNT("SSL_CTX", a);
2500 REF_ASSERT_ISNT(i < 0);
2502 X509_VERIFY_PARAM_free(a->param);
2503 dane_ctx_final(&a->dane);
2506 * Free internal session cache. However: the remove_cb() may reference
2507 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2508 * after the sessions were flushed.
2509 * As the ex_data handling routines might also touch the session cache,
2510 * the most secure solution seems to be: empty (flush) the cache, then
2511 * free ex_data, then finally free the cache.
2512 * (See ticket [openssl.org #212].)
2514 if (a->sessions != NULL)
2515 SSL_CTX_flush_sessions(a, 0);
2517 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
2518 lh_SSL_SESSION_free(a->sessions);
2519 X509_STORE_free(a->cert_store);
2520 #ifndef OPENSSL_NO_CT
2521 CTLOG_STORE_free(a->ctlog_store);
2523 sk_SSL_CIPHER_free(a->cipher_list);
2524 sk_SSL_CIPHER_free(a->cipher_list_by_id);
2525 ssl_cert_free(a->cert);
2526 sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free);
2527 sk_X509_pop_free(a->extra_certs, X509_free);
2528 a->comp_methods = NULL;
2529 #ifndef OPENSSL_NO_SRTP
2530 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
2532 #ifndef OPENSSL_NO_SRP
2533 SSL_CTX_SRP_CTX_free(a);
2535 #ifndef OPENSSL_NO_ENGINE
2536 ENGINE_finish(a->client_cert_engine);
2539 #ifndef OPENSSL_NO_EC
2540 OPENSSL_free(a->tlsext_ecpointformatlist);
2541 OPENSSL_free(a->tlsext_ellipticcurvelist);
2543 OPENSSL_free(a->alpn_client_proto_list);
2545 CRYPTO_THREAD_lock_free(a->lock);
2550 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2552 ctx->default_passwd_callback = cb;
2555 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
2557 ctx->default_passwd_callback_userdata = u;
2560 pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
2562 return ctx->default_passwd_callback;
2565 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
2567 return ctx->default_passwd_callback_userdata;
2570 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
2572 s->default_passwd_callback = cb;
2575 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
2577 s->default_passwd_callback_userdata = u;
2580 pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
2582 return s->default_passwd_callback;
2585 void *SSL_get_default_passwd_cb_userdata(SSL *s)
2587 return s->default_passwd_callback_userdata;
2590 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
2591 int (*cb) (X509_STORE_CTX *, void *),
2594 ctx->app_verify_callback = cb;
2595 ctx->app_verify_arg = arg;
2598 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
2599 int (*cb) (int, X509_STORE_CTX *))
2601 ctx->verify_mode = mode;
2602 ctx->default_verify_callback = cb;
2605 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
2607 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2610 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
2613 ssl_cert_set_cert_cb(c->cert, cb, arg);
2616 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
2618 ssl_cert_set_cert_cb(s->cert, cb, arg);
2621 void ssl_set_masks(SSL *s)
2623 #if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_GOST)
2627 uint32_t *pvalid = s->s3->tmp.valid_flags;
2628 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
2629 unsigned long mask_k, mask_a;
2630 #ifndef OPENSSL_NO_EC
2631 int have_ecc_cert, ecdsa_ok;
2637 #ifndef OPENSSL_NO_DH
2638 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
2643 rsa_enc = pvalid[SSL_PKEY_RSA_ENC] & CERT_PKEY_VALID;
2644 rsa_sign = pvalid[SSL_PKEY_RSA_SIGN] & CERT_PKEY_SIGN;
2645 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_SIGN;
2646 #ifndef OPENSSL_NO_EC
2647 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
2653 fprintf(stderr, "dht=%d re=%d rs=%d ds=%d\n",
2654 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
2657 #ifndef OPENSSL_NO_GOST
2658 cpk = &(c->pkeys[SSL_PKEY_GOST12_512]);
2659 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2660 mask_k |= SSL_kGOST;
2661 mask_a |= SSL_aGOST12;
2663 cpk = &(c->pkeys[SSL_PKEY_GOST12_256]);
2664 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2665 mask_k |= SSL_kGOST;
2666 mask_a |= SSL_aGOST12;
2668 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2669 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2670 mask_k |= SSL_kGOST;
2671 mask_a |= SSL_aGOST01;
2681 if (rsa_enc || rsa_sign) {
2689 mask_a |= SSL_aNULL;
2692 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2693 * depending on the key usage extension.
2695 #ifndef OPENSSL_NO_EC
2696 if (have_ecc_cert) {
2698 cpk = &c->pkeys[SSL_PKEY_ECC];
2700 ex_kusage = X509_get_key_usage(x);
2701 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
2702 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
2705 mask_a |= SSL_aECDSA;
2709 #ifndef OPENSSL_NO_EC
2710 mask_k |= SSL_kECDHE;
2713 #ifndef OPENSSL_NO_PSK
2716 if (mask_k & SSL_kRSA)
2717 mask_k |= SSL_kRSAPSK;
2718 if (mask_k & SSL_kDHE)
2719 mask_k |= SSL_kDHEPSK;
2720 if (mask_k & SSL_kECDHE)
2721 mask_k |= SSL_kECDHEPSK;
2724 s->s3->tmp.mask_k = mask_k;
2725 s->s3->tmp.mask_a = mask_a;
2728 #ifndef OPENSSL_NO_EC
2730 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2732 if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
2733 /* key usage, if present, must allow signing */
2734 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
2735 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2736 SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2740 return 1; /* all checks are ok */
2745 static int ssl_get_server_cert_index(const SSL *s)
2748 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2749 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2750 idx = SSL_PKEY_RSA_SIGN;
2751 if (idx == SSL_PKEY_GOST_EC) {
2752 if (s->cert->pkeys[SSL_PKEY_GOST12_512].x509)
2753 idx = SSL_PKEY_GOST12_512;
2754 else if (s->cert->pkeys[SSL_PKEY_GOST12_256].x509)
2755 idx = SSL_PKEY_GOST12_256;
2756 else if (s->cert->pkeys[SSL_PKEY_GOST01].x509)
2757 idx = SSL_PKEY_GOST01;
2762 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR);
2766 CERT_PKEY *ssl_get_server_send_pkey(SSL *s)
2772 if (!s->s3 || !s->s3->tmp.new_cipher)
2776 i = ssl_get_server_cert_index(s);
2778 /* This may or may not be an error. */
2783 return &c->pkeys[i];
2786 EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher,
2789 unsigned long alg_a;
2793 alg_a = cipher->algorithm_auth;
2796 if ((alg_a & SSL_aDSS) &&
2797 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2798 idx = SSL_PKEY_DSA_SIGN;
2799 else if (alg_a & SSL_aRSA) {
2800 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2801 idx = SSL_PKEY_RSA_SIGN;
2802 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2803 idx = SSL_PKEY_RSA_ENC;
2804 } else if ((alg_a & SSL_aECDSA) &&
2805 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2808 SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR);
2812 *pmd = s->s3->tmp.md[idx];
2813 return c->pkeys[idx].privatekey;
2816 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2817 size_t *serverinfo_length)
2821 *serverinfo_length = 0;
2824 i = ssl_get_server_cert_index(s);
2828 if (c->pkeys[i].serverinfo == NULL)
2831 *serverinfo = c->pkeys[i].serverinfo;
2832 *serverinfo_length = c->pkeys[i].serverinfo_length;
2836 void ssl_update_cache(SSL *s, int mode)
2841 * If the session_id_length is 0, we are not supposed to cache it, and it
2842 * would be rather hard to do anyway :-)
2844 if (s->session->session_id_length == 0)
2847 i = s->session_ctx->session_cache_mode;
2848 if ((i & mode) && (!s->hit)
2849 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2850 || SSL_CTX_add_session(s->session_ctx, s->session))
2851 && (s->session_ctx->new_session_cb != NULL)) {
2852 SSL_SESSION_up_ref(s->session);
2853 if (!s->session_ctx->new_session_cb(s, s->session))
2854 SSL_SESSION_free(s->session);
2857 /* auto flush every 255 connections */
2858 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
2859 if ((((mode & SSL_SESS_CACHE_CLIENT)
2860 ? s->session_ctx->stats.sess_connect_good
2861 : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) {
2862 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
2867 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2872 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2877 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2881 if (s->method != meth) {
2882 const SSL_METHOD *sm = s->method;
2883 int (*hf)(SSL *) = s->handshake_func;
2885 if (sm->version == meth->version)
2890 ret = s->method->ssl_new(s);
2893 if (hf == sm->ssl_connect)
2894 s->handshake_func = meth->ssl_connect;
2895 else if (hf == sm->ssl_accept)
2896 s->handshake_func = meth->ssl_accept;
2901 int SSL_get_error(const SSL *s, int i)
2908 return (SSL_ERROR_NONE);
2911 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2912 * where we do encode the error
2914 if ((l = ERR_peek_error()) != 0) {
2915 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2916 return (SSL_ERROR_SYSCALL);
2918 return (SSL_ERROR_SSL);
2921 if ((i < 0) && SSL_want_read(s)) {
2922 bio = SSL_get_rbio(s);
2923 if (BIO_should_read(bio))
2924 return (SSL_ERROR_WANT_READ);
2925 else if (BIO_should_write(bio))
2927 * This one doesn't make too much sense ... We never try to write
2928 * to the rbio, and an application program where rbio and wbio
2929 * are separate couldn't even know what it should wait for.
2930 * However if we ever set s->rwstate incorrectly (so that we have
2931 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2932 * wbio *are* the same, this test works around that bug; so it
2933 * might be safer to keep it.
2935 return (SSL_ERROR_WANT_WRITE);
2936 else if (BIO_should_io_special(bio)) {
2937 reason = BIO_get_retry_reason(bio);
2938 if (reason == BIO_RR_CONNECT)
2939 return (SSL_ERROR_WANT_CONNECT);
2940 else if (reason == BIO_RR_ACCEPT)
2941 return (SSL_ERROR_WANT_ACCEPT);
2943 return (SSL_ERROR_SYSCALL); /* unknown */
2947 if ((i < 0) && SSL_want_write(s)) {
2948 bio = SSL_get_wbio(s);
2949 if (BIO_should_write(bio))
2950 return (SSL_ERROR_WANT_WRITE);
2951 else if (BIO_should_read(bio))
2953 * See above (SSL_want_read(s) with BIO_should_write(bio))
2955 return (SSL_ERROR_WANT_READ);
2956 else if (BIO_should_io_special(bio)) {
2957 reason = BIO_get_retry_reason(bio);
2958 if (reason == BIO_RR_CONNECT)
2959 return (SSL_ERROR_WANT_CONNECT);
2960 else if (reason == BIO_RR_ACCEPT)
2961 return (SSL_ERROR_WANT_ACCEPT);
2963 return (SSL_ERROR_SYSCALL);
2966 if ((i < 0) && SSL_want_x509_lookup(s)) {
2967 return (SSL_ERROR_WANT_X509_LOOKUP);
2969 if ((i < 0) && SSL_want_async(s)) {
2970 return SSL_ERROR_WANT_ASYNC;
2974 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2975 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2976 return (SSL_ERROR_ZERO_RETURN);
2978 return (SSL_ERROR_SYSCALL);
2981 static int ssl_do_handshake_intern(void *vargs)
2983 struct ssl_async_args *args;
2986 args = (struct ssl_async_args *)vargs;
2989 return s->handshake_func(s);
2992 int SSL_do_handshake(SSL *s)
2996 if (s->handshake_func == NULL) {
2997 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
3001 s->method->ssl_renegotiate_check(s);
3003 if (SSL_in_init(s) || SSL_in_before(s)) {
3004 if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
3005 struct ssl_async_args args;
3009 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
3011 ret = s->handshake_func(s);
3017 void SSL_set_accept_state(SSL *s)
3021 ossl_statem_clear(s);
3022 s->handshake_func = s->method->ssl_accept;
3026 void SSL_set_connect_state(SSL *s)
3030 ossl_statem_clear(s);
3031 s->handshake_func = s->method->ssl_connect;
3035 int ssl_undefined_function(SSL *s)
3037 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
3041 int ssl_undefined_void_function(void)
3043 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
3044 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
3048 int ssl_undefined_const_function(const SSL *s)
3053 const SSL_METHOD *ssl_bad_method(int ver)
3055 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
3059 const char *ssl_protocol_to_string(int version)
3061 if (version == TLS1_2_VERSION)
3063 else if (version == TLS1_1_VERSION)
3065 else if (version == TLS1_VERSION)
3067 else if (version == SSL3_VERSION)
3069 else if (version == DTLS1_BAD_VER)
3071 else if (version == DTLS1_VERSION)
3073 else if (version == DTLS1_2_VERSION)
3079 const char *SSL_get_version(const SSL *s)
3081 return ssl_protocol_to_string(s->version);
3084 SSL *SSL_dup(SSL *s)
3086 STACK_OF(X509_NAME) *sk;
3091 /* If we're not quiescent, just up_ref! */
3092 if (!SSL_in_init(s) || !SSL_in_before(s)) {
3093 CRYPTO_atomic_add(&s->references, 1, &i, s->lock);
3098 * Otherwise, copy configuration state, and session if set.
3100 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
3103 if (s->session != NULL) {
3105 * Arranges to share the same session via up_ref. This "copies"
3106 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3108 if (!SSL_copy_session_id(ret, s))
3112 * No session has been established yet, so we have to expect that
3113 * s->cert or ret->cert will be changed later -- they should not both
3114 * point to the same object, and thus we can't use
3115 * SSL_copy_session_id.
3117 if (!SSL_set_ssl_method(ret, s->method))
3120 if (s->cert != NULL) {
3121 ssl_cert_free(ret->cert);
3122 ret->cert = ssl_cert_dup(s->cert);
3123 if (ret->cert == NULL)
3127 if (!SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length))
3131 ssl_dane_dup(ret, s);
3132 ret->version = s->version;
3133 ret->options = s->options;
3134 ret->mode = s->mode;
3135 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
3136 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
3137 ret->msg_callback = s->msg_callback;
3138 ret->msg_callback_arg = s->msg_callback_arg;
3139 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
3140 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
3141 ret->generate_session_id = s->generate_session_id;
3143 SSL_set_info_callback(ret, SSL_get_info_callback(s));
3145 /* copy app data, a little dangerous perhaps */
3146 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
3149 /* setup rbio, and wbio */
3150 if (s->rbio != NULL) {
3151 if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
3154 if (s->wbio != NULL) {
3155 if (s->wbio != s->rbio) {
3156 if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
3159 ret->wbio = ret->rbio;
3162 ret->server = s->server;
3163 if (s->handshake_func) {
3165 SSL_set_accept_state(ret);
3167 SSL_set_connect_state(ret);
3169 ret->shutdown = s->shutdown;
3172 ret->default_passwd_callback = s->default_passwd_callback;
3173 ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata;
3175 X509_VERIFY_PARAM_inherit(ret->param, s->param);
3177 /* dup the cipher_list and cipher_list_by_id stacks */
3178 if (s->cipher_list != NULL) {
3179 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
3182 if (s->cipher_list_by_id != NULL)
3183 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
3187 /* Dup the client_CA list */
3188 if (s->client_CA != NULL) {
3189 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL)
3191 ret->client_CA = sk;
3192 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
3193 xn = sk_X509_NAME_value(sk, i);
3194 if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) {
3207 void ssl_clear_cipher_ctx(SSL *s)
3209 if (s->enc_read_ctx != NULL) {
3210 EVP_CIPHER_CTX_free(s->enc_read_ctx);
3211 s->enc_read_ctx = NULL;
3213 if (s->enc_write_ctx != NULL) {
3214 EVP_CIPHER_CTX_free(s->enc_write_ctx);
3215 s->enc_write_ctx = NULL;
3217 #ifndef OPENSSL_NO_COMP
3218 COMP_CTX_free(s->expand);
3220 COMP_CTX_free(s->compress);
3225 X509 *SSL_get_certificate(const SSL *s)
3227 if (s->cert != NULL)
3228 return (s->cert->key->x509);
3233 EVP_PKEY *SSL_get_privatekey(const SSL *s)
3235 if (s->cert != NULL)
3236 return (s->cert->key->privatekey);
3241 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
3243 if (ctx->cert != NULL)
3244 return ctx->cert->key->x509;
3249 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
3251 if (ctx->cert != NULL)
3252 return ctx->cert->key->privatekey;
3257 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
3259 if ((s->session != NULL) && (s->session->cipher != NULL))
3260 return (s->session->cipher);
3264 const COMP_METHOD *SSL_get_current_compression(SSL *s)
3266 #ifndef OPENSSL_NO_COMP
3267 return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
3273 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
3275 #ifndef OPENSSL_NO_COMP
3276 return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
3282 int ssl_init_wbio_buffer(SSL *s, int push)
3286 if (s->bbio == NULL) {
3287 bbio = BIO_new(BIO_f_buffer());
3293 if (s->bbio == s->wbio)
3294 s->wbio = BIO_pop(s->wbio);
3296 (void)BIO_reset(bbio);
3297 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
3298 if (!BIO_set_read_buffer_size(bbio, 1)) {
3299 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
3303 if (s->wbio != bbio)
3304 s->wbio = BIO_push(bbio, s->wbio);
3306 if (s->wbio == bbio)
3307 s->wbio = BIO_pop(bbio);
3312 void ssl_free_wbio_buffer(SSL *s)
3314 /* callers ensure s is never null */
3315 if (s->bbio == NULL)
3318 if (s->bbio == s->wbio) {
3319 /* remove buffering */
3320 s->wbio = BIO_pop(s->wbio);
3323 * not the usual REF_DEBUG, but this avoids
3324 * adding one more preprocessor symbol
3326 assert(s->wbio != NULL);
3333 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
3335 ctx->quiet_shutdown = mode;
3338 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
3340 return (ctx->quiet_shutdown);
3343 void SSL_set_quiet_shutdown(SSL *s, int mode)
3345 s->quiet_shutdown = mode;
3348 int SSL_get_quiet_shutdown(const SSL *s)
3350 return (s->quiet_shutdown);
3353 void SSL_set_shutdown(SSL *s, int mode)
3358 int SSL_get_shutdown(const SSL *s)
3360 return (s->shutdown);
3363 int SSL_version(const SSL *s)
3365 return (s->version);
3368 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
3373 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
3376 if (ssl->ctx == ctx)
3379 ctx = ssl->initial_ctx;
3380 new_cert = ssl_cert_dup(ctx->cert);
3381 if (new_cert == NULL) {
3384 ssl_cert_free(ssl->cert);
3385 ssl->cert = new_cert;
3388 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3389 * so setter APIs must prevent invalid lengths from entering the system.
3391 OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx));
3394 * If the session ID context matches that of the parent SSL_CTX,
3395 * inherit it from the new SSL_CTX as well. If however the context does
3396 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3397 * leave it unchanged.
3399 if ((ssl->ctx != NULL) &&
3400 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
3401 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
3402 ssl->sid_ctx_length = ctx->sid_ctx_length;
3403 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
3406 SSL_CTX_up_ref(ctx);
3407 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3413 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3415 return (X509_STORE_set_default_paths(ctx->cert_store));
3418 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
3420 X509_LOOKUP *lookup;
3422 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
3425 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
3427 /* Clear any errors if the default directory does not exist */
3433 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
3435 X509_LOOKUP *lookup;
3437 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
3441 X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
3443 /* Clear any errors if the default file does not exist */
3449 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3452 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath));
3455 void SSL_set_info_callback(SSL *ssl,
3456 void (*cb) (const SSL *ssl, int type, int val))
3458 ssl->info_callback = cb;
3462 * One compiler (Diab DCC) doesn't like argument names in returned function
3465 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
3468 return ssl->info_callback;
3471 void SSL_set_verify_result(SSL *ssl, long arg)
3473 ssl->verify_result = arg;
3476 long SSL_get_verify_result(const SSL *ssl)
3478 return (ssl->verify_result);
3481 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
3484 return sizeof(ssl->s3->client_random);
3485 if (outlen > sizeof(ssl->s3->client_random))
3486 outlen = sizeof(ssl->s3->client_random);
3487 memcpy(out, ssl->s3->client_random, outlen);
3491 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
3494 return sizeof(ssl->s3->server_random);
3495 if (outlen > sizeof(ssl->s3->server_random))
3496 outlen = sizeof(ssl->s3->server_random);
3497 memcpy(out, ssl->s3->server_random, outlen);
3501 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
3502 unsigned char *out, size_t outlen)
3504 if (session->master_key_length < 0) {
3505 /* Should never happen */
3509 return session->master_key_length;
3510 if (outlen > (size_t)session->master_key_length)
3511 outlen = session->master_key_length;
3512 memcpy(out, session->master_key, outlen);
3516 int SSL_set_ex_data(SSL *s, int idx, void *arg)
3518 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3521 void *SSL_get_ex_data(const SSL *s, int idx)
3523 return (CRYPTO_get_ex_data(&s->ex_data, idx));
3526 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
3528 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3531 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
3533 return (CRYPTO_get_ex_data(&s->ex_data, idx));
3541 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3543 return (ctx->cert_store);
3546 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
3548 X509_STORE_free(ctx->cert_store);
3549 ctx->cert_store = store;
3552 int SSL_want(const SSL *s)
3554 return (s->rwstate);
3558 * \brief Set the callback for generating temporary DH keys.
3559 * \param ctx the SSL context.
3560 * \param dh the callback
3563 #ifndef OPENSSL_NO_DH
3564 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
3565 DH *(*dh) (SSL *ssl, int is_export,
3568 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3571 void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
3574 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3578 #ifndef OPENSSL_NO_PSK
3579 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3581 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3582 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT,
3583 SSL_R_DATA_LENGTH_TOO_LONG);
3586 OPENSSL_free(ctx->cert->psk_identity_hint);
3587 if (identity_hint != NULL) {
3588 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
3589 if (ctx->cert->psk_identity_hint == NULL)
3592 ctx->cert->psk_identity_hint = NULL;
3596 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3601 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3602 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3605 OPENSSL_free(s->cert->psk_identity_hint);
3606 if (identity_hint != NULL) {
3607 s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
3608 if (s->cert->psk_identity_hint == NULL)
3611 s->cert->psk_identity_hint = NULL;
3615 const char *SSL_get_psk_identity_hint(const SSL *s)
3617 if (s == NULL || s->session == NULL)
3619 return (s->session->psk_identity_hint);
3622 const char *SSL_get_psk_identity(const SSL *s)
3624 if (s == NULL || s->session == NULL)
3626 return (s->session->psk_identity);
3629 void SSL_set_psk_client_callback(SSL *s,
3630 unsigned int (*cb) (SSL *ssl,
3639 s->psk_client_callback = cb;
3642 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3643 unsigned int (*cb) (SSL *ssl,
3652 ctx->psk_client_callback = cb;
3655 void SSL_set_psk_server_callback(SSL *s,
3656 unsigned int (*cb) (SSL *ssl,
3657 const char *identity,
3662 s->psk_server_callback = cb;
3665 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3666 unsigned int (*cb) (SSL *ssl,
3667 const char *identity,
3672 ctx->psk_server_callback = cb;
3676 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
3677 void (*cb) (int write_p, int version,
3678 int content_type, const void *buf,
3679 size_t len, SSL *ssl, void *arg))
3681 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3684 void SSL_set_msg_callback(SSL *ssl,
3685 void (*cb) (int write_p, int version,
3686 int content_type, const void *buf,
3687 size_t len, SSL *ssl, void *arg))
3689 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3692 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3693 int (*cb) (SSL *ssl,
3697 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3698 (void (*)(void))cb);
3701 void SSL_set_not_resumable_session_callback(SSL *ssl,
3702 int (*cb) (SSL *ssl,
3703 int is_forward_secure))
3705 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3706 (void (*)(void))cb);
3710 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3711 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3712 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3716 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
3718 ssl_clear_hash_ctx(hash);
3719 *hash = EVP_MD_CTX_new();
3720 if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) {
3721 EVP_MD_CTX_free(*hash);
3728 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3732 EVP_MD_CTX_free(*hash);
3736 /* Retrieve handshake hashes */
3737 int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen)
3739 EVP_MD_CTX *ctx = NULL;
3740 EVP_MD_CTX *hdgst = s->s3->handshake_dgst;
3741 int ret = EVP_MD_CTX_size(hdgst);
3742 if (ret < 0 || ret > outlen) {
3746 ctx = EVP_MD_CTX_new();
3751 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
3752 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0)
3755 EVP_MD_CTX_free(ctx);
3759 int SSL_session_reused(SSL *s)
3764 int SSL_is_server(SSL *s)
3769 #if OPENSSL_API_COMPAT < 0x10100000L
3770 void SSL_set_debug(SSL *s, int debug)
3772 /* Old function was do-nothing anyway... */
3779 void SSL_set_security_level(SSL *s, int level)
3781 s->cert->sec_level = level;
3784 int SSL_get_security_level(const SSL *s)
3786 return s->cert->sec_level;
3789 void SSL_set_security_callback(SSL *s,
3790 int (*cb) (const SSL *s, const SSL_CTX *ctx, int op,
3791 int bits, int nid, void *other,
3794 s->cert->sec_cb = cb;
3797 int (*SSL_get_security_callback(const SSL *s)) (const SSL *s, const SSL_CTX *ctx, int op,
3799 void *other, void *ex) {
3800 return s->cert->sec_cb;
3803 void SSL_set0_security_ex_data(SSL *s, void *ex)
3805 s->cert->sec_ex = ex;
3808 void *SSL_get0_security_ex_data(const SSL *s)
3810 return s->cert->sec_ex;
3813 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
3815 ctx->cert->sec_level = level;
3818 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
3820 return ctx->cert->sec_level;
3823 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
3824 int (*cb) (const SSL *s, const SSL_CTX *ctx, int op,
3825 int bits, int nid, void *other,
3828 ctx->cert->sec_cb = cb;
3831 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
3837 return ctx->cert->sec_cb;
3840 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
3842 ctx->cert->sec_ex = ex;
3845 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
3847 return ctx->cert->sec_ex;
3852 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
3853 * can return unsigned long, instead of the generic long return value from the
3854 * control interface.
3856 unsigned long SSL_CTX_get_options(const SSL_CTX *ctx)
3858 return ctx->options;
3860 unsigned long SSL_get_options(const SSL* s)
3864 unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op)
3866 return ctx->options |= op;
3868 unsigned long SSL_set_options(SSL *s, unsigned long op)
3870 return s->options |= op;
3872 unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op)
3874 return ctx->options &= ~op;
3876 unsigned long SSL_clear_options(SSL *s, unsigned long op)
3878 return s->options &= ~op;
3881 STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
3883 return s->verified_chain;
3886 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
3888 #ifndef OPENSSL_NO_CT
3891 * Moves SCTs from the |src| stack to the |dst| stack.
3892 * The source of each SCT will be set to |origin|.
3893 * If |dst| points to a NULL pointer, a new stack will be created and owned by
3895 * Returns the number of SCTs moved, or a negative integer if an error occurs.
3897 static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src, sct_source_t origin)
3903 *dst = sk_SCT_new_null();
3905 SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE);
3910 while ((sct = sk_SCT_pop(src)) != NULL) {
3911 if (SCT_set_source(sct, origin) != 1)
3914 if (sk_SCT_push(*dst, sct) <= 0)
3922 sk_SCT_push(src, sct); /* Put the SCT back */
3927 * Look for data collected during ServerHello and parse if found.
3928 * Return 1 on success, 0 on failure.
3930 static int ct_extract_tls_extension_scts(SSL *s)
3932 int scts_extracted = 0;
3934 if (s->tlsext_scts != NULL) {
3935 const unsigned char *p = s->tlsext_scts;
3936 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->tlsext_scts_len);
3938 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
3940 SCT_LIST_free(scts);
3943 return scts_extracted;
3947 * Checks for an OCSP response and then attempts to extract any SCTs found if it
3948 * contains an SCT X509 extension. They will be stored in |s->scts|.
3950 * - The number of SCTs extracted, assuming an OCSP response exists.
3951 * - 0 if no OCSP response exists or it contains no SCTs.
3952 * - A negative integer if an error occurs.
3954 static int ct_extract_ocsp_response_scts(SSL *s)
3956 #ifndef OPENSSL_NO_OCSP
3957 int scts_extracted = 0;
3958 const unsigned char *p;
3959 OCSP_BASICRESP *br = NULL;
3960 OCSP_RESPONSE *rsp = NULL;
3961 STACK_OF(SCT) *scts = NULL;
3964 if (s->tlsext_ocsp_resp == NULL || s->tlsext_ocsp_resplen == 0)
3967 p = s->tlsext_ocsp_resp;
3968 rsp = d2i_OCSP_RESPONSE(NULL, &p, s->tlsext_ocsp_resplen);
3972 br = OCSP_response_get1_basic(rsp);
3976 for (i = 0; i < OCSP_resp_count(br); ++i) {
3977 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
3982 scts = OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
3983 scts_extracted = ct_move_scts(&s->scts, scts,
3984 SCT_SOURCE_OCSP_STAPLED_RESPONSE);
3985 if (scts_extracted < 0)
3989 SCT_LIST_free(scts);
3990 OCSP_BASICRESP_free(br);
3991 OCSP_RESPONSE_free(rsp);
3992 return scts_extracted;
3994 /* Behave as if no OCSP response exists */
4000 * Attempts to extract SCTs from the peer certificate.
4001 * Return the number of SCTs extracted, or a negative integer if an error
4004 static int ct_extract_x509v3_extension_scts(SSL *s)
4006 int scts_extracted = 0;
4007 X509 *cert = s->session != NULL ? s->session->peer : NULL;
4010 STACK_OF(SCT) *scts =
4011 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
4014 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
4016 SCT_LIST_free(scts);
4019 return scts_extracted;
4023 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4024 * response (if it exists) and X509v3 extensions in the certificate.
4025 * Returns NULL if an error occurs.
4027 const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
4029 if (!s->scts_parsed) {
4030 if (ct_extract_tls_extension_scts(s) < 0 ||
4031 ct_extract_ocsp_response_scts(s) < 0 ||
4032 ct_extract_x509v3_extension_scts(s) < 0)
4042 int SSL_set_ct_validation_callback(SSL *s, ct_validation_cb callback, void *arg)
4047 * Since code exists that uses the custom extension handler for CT, look
4048 * for this and throw an error if they have already registered to use CT.
4050 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
4051 TLSEXT_TYPE_signed_certificate_timestamp)) {
4052 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK,
4053 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
4057 s->ct_validation_callback = callback;
4058 s->ct_validation_callback_arg = arg;
4060 if (callback != NULL) {
4061 /* If we are validating CT, then we MUST accept SCTs served via OCSP */
4062 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
4071 int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx, ct_validation_cb callback,
4077 * Since code exists that uses the custom extension handler for CT, look for
4078 * this and throw an error if they have already registered to use CT.
4080 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
4081 TLSEXT_TYPE_signed_certificate_timestamp)) {
4082 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK,
4083 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
4087 ctx->ct_validation_callback = callback;
4088 ctx->ct_validation_callback_arg = arg;
4094 ct_validation_cb SSL_get_ct_validation_callback(const SSL *s)
4096 return s->ct_validation_callback;
4099 ct_validation_cb SSL_CTX_get_ct_validation_callback(const SSL_CTX *ctx)
4101 return ctx->ct_validation_callback;
4104 int ssl_validate_ct(SSL *s)
4107 X509 *cert = s->session != NULL ? s->session->peer : NULL;
4108 X509 *issuer = NULL;
4109 CT_POLICY_EVAL_CTX *ctx = NULL;
4110 const STACK_OF(SCT) *scts;
4112 /* If no callback is set, attempt no validation - just return success */
4113 if (s->ct_validation_callback == NULL)
4117 SSLerr(SSL_F_SSL_VALIDATE_CT, SSL_R_NO_CERTIFICATE_ASSIGNED);
4121 if (s->verified_chain != NULL && sk_X509_num(s->verified_chain) > 1)
4122 issuer = sk_X509_value(s->verified_chain, 1);
4124 ctx = CT_POLICY_EVAL_CTX_new();
4126 SSLerr(SSL_F_SSL_VALIDATE_CT, ERR_R_MALLOC_FAILURE);
4130 CT_POLICY_EVAL_CTX_set0_cert(ctx, cert);
4131 CT_POLICY_EVAL_CTX_set0_issuer(ctx, issuer);
4132 CT_POLICY_EVAL_CTX_set0_log_store(ctx, s->ctx->ctlog_store);
4134 scts = SSL_get0_peer_scts(s);
4136 if (SCT_LIST_validate(scts, ctx) != 1) {
4137 SSLerr(SSL_F_SSL_VALIDATE_CT, SSL_R_SCT_VERIFICATION_FAILED);
4141 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
4143 ret = 0; /* This function returns 0 on failure */
4146 CT_POLICY_EVAL_CTX_free(ctx);
4150 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
4152 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
4155 int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
4157 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
4160 void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE *logs)
4162 CTLOG_STORE_free(ctx->ctlog_store);
4163 ctx->ctlog_store = logs;
4166 const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
4168 return ctx->ctlog_store;