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 #ifndef OPENSSL_NO_DH
156 # include <openssl/dh.h>
158 #ifndef OPENSSL_NO_ENGINE
159 # include <openssl/engine.h>
161 #include <openssl/async.h>
163 const char SSL_version_str[] = OPENSSL_VERSION_TEXT;
165 SSL3_ENC_METHOD ssl3_undef_enc_method = {
167 * evil casts, but these functions are only called if there's a library
170 (int (*)(SSL *, int))ssl_undefined_function,
171 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
172 ssl_undefined_function,
173 (int (*)(SSL *, unsigned char *, unsigned char *, int))
174 ssl_undefined_function,
175 (int (*)(SSL *, int))ssl_undefined_function,
176 (int (*)(SSL *, const char *, int, unsigned char *))
177 ssl_undefined_function,
178 0, /* finish_mac_length */
179 NULL, /* client_finished_label */
180 0, /* client_finished_label_len */
181 NULL, /* server_finished_label */
182 0, /* server_finished_label_len */
183 (int (*)(int))ssl_undefined_function,
184 (int (*)(SSL *, unsigned char *, size_t, const char *,
185 size_t, const unsigned char *, size_t,
186 int use_context))ssl_undefined_function,
189 struct ssl_async_args {
195 int (*func1)(SSL *, void *, int);
196 int (*func2)(SSL *, const void *, int);
200 static const struct {
205 { DANETLS_MATCHING_FULL, 0, NID_undef },
206 { DANETLS_MATCHING_2256, 1, NID_sha256 },
207 { DANETLS_MATCHING_2512, 2, NID_sha512 },
210 static int dane_ctx_enable(struct dane_ctx_st *dctx)
212 const EVP_MD **mdevp;
214 uint8_t mdmax = DANETLS_MATCHING_LAST;
215 int n = ((int) mdmax) + 1; /* int to handle PrivMatch(255) */
218 mdevp = OPENSSL_zalloc(n * sizeof(*mdevp));
219 mdord = OPENSSL_zalloc(n * sizeof(*mdord));
221 if (mdord == NULL || mdevp == NULL) {
223 SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE);
227 /* Install default entries */
228 for (i = 0; i < OSSL_NELEM(dane_mds); ++i) {
231 if (dane_mds[i].nid == NID_undef ||
232 (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL)
234 mdevp[dane_mds[i].mtype] = md;
235 mdord[dane_mds[i].mtype] = dane_mds[i].ord;
245 static void dane_ctx_final(struct dane_ctx_st *dctx)
247 OPENSSL_free(dctx->mdevp);
250 OPENSSL_free(dctx->mdord);
255 static void tlsa_free(danetls_record *t)
259 OPENSSL_free(t->data);
260 EVP_PKEY_free(t->spki);
264 static void dane_final(struct dane_st *dane)
266 sk_danetls_record_pop_free(dane->trecs, tlsa_free);
269 sk_X509_pop_free(dane->certs, X509_free);
272 X509_free(dane->mcert);
280 * dane_copy - Copy dane configuration, sans verification state.
282 static int ssl_dane_dup(SSL *to, SSL *from)
287 if (!DANETLS_ENABLED(&from->dane))
290 dane_final(&to->dane);
292 num = sk_danetls_record_num(from->dane.trecs);
293 for (i = 0; i < num; ++i) {
294 danetls_record *t = sk_danetls_record_value(from->dane.trecs, i);
295 if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype,
296 t->data, t->dlen) <= 0)
302 static int dane_mtype_set(
303 struct dane_ctx_st *dctx,
310 if (mtype == DANETLS_MATCHING_FULL && md != NULL) {
311 SSLerr(SSL_F_DANE_MTYPE_SET,
312 SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL);
316 if (mtype > dctx->mdmax) {
317 const EVP_MD **mdevp;
319 int n = ((int) mtype) + 1;
321 mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp));
323 SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE);
328 mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord));
330 SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE);
335 /* Zero-fill any gaps */
336 for (i = dctx->mdmax+1; i < mtype; ++i) {
344 dctx->mdevp[mtype] = md;
345 /* Coerce ordinal of disabled matching types to 0 */
346 dctx->mdord[mtype] = (md == NULL) ? 0 : ord;
351 static const EVP_MD *tlsa_md_get(struct dane_st *dane, uint8_t mtype)
353 if (mtype > dane->dctx->mdmax)
355 return dane->dctx->mdevp[mtype];
358 static int dane_tlsa_add(
359 struct dane_st *dane,
367 const EVP_MD *md = NULL;
368 int ilen = (int)dlen;
371 if (dane->trecs == NULL) {
372 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED);
376 if (ilen < 0 || dlen != (size_t)ilen) {
377 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH);
381 if (usage > DANETLS_USAGE_LAST) {
382 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE);
386 if (selector > DANETLS_SELECTOR_LAST) {
387 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR);
391 if (mtype != DANETLS_MATCHING_FULL) {
392 md = tlsa_md_get(dane, mtype);
394 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE);
399 if (md != NULL && dlen != (size_t)EVP_MD_size(md)) {
400 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH);
404 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA);
408 if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) {
409 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
414 t->selector = selector;
416 t->data = OPENSSL_malloc(ilen);
417 if (t->data == NULL) {
419 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
422 memcpy(t->data, data, ilen);
425 /* Validate and cache full certificate or public key */
426 if (mtype == DANETLS_MATCHING_FULL) {
427 const unsigned char *p = data;
429 EVP_PKEY *pkey = NULL;
432 case DANETLS_SELECTOR_CERT:
433 if (!d2i_X509(&cert, &p, dlen) || p < data ||
434 dlen != (size_t)(p - data)) {
436 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
439 if (X509_get0_pubkey(cert) == NULL) {
441 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
445 if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
451 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
452 * records that contain full certificates of trust-anchors that are
453 * not present in the wire chain. For usage PKIX-TA(0), we augment
454 * the chain with untrusted Full(0) certificates from DNS, in case
455 * they are missing from the chain.
457 if ((dane->certs == NULL &&
458 (dane->certs = sk_X509_new_null()) == NULL) ||
459 !sk_X509_push(dane->certs, cert)) {
460 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
467 case DANETLS_SELECTOR_SPKI:
468 if (!d2i_PUBKEY(&pkey, &p, dlen) || p < data ||
469 dlen != (size_t)(p - data)) {
471 SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
476 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
477 * records that contain full bare keys of trust-anchors that are
478 * not present in the wire chain.
480 if (usage == DANETLS_USAGE_DANE_TA)
489 * Find the right insertion point for the new record.
491 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
492 * they can be processed first, as they require no chain building, and no
493 * expiration or hostname checks. Because DANE-EE(3) is numerically
494 * largest, this is accomplished via descending sort by "usage".
496 * We also sort in descending order by matching ordinal to simplify
497 * the implementation of digest agility in the verification code.
499 * The choice of order for the selector is not significant, so we
500 * use the same descending order for consistency.
502 for (i = 0; i < sk_danetls_record_num(dane->trecs); ++i) {
503 danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
504 if (rec->usage > usage)
506 if (rec->usage < usage)
508 if (rec->selector > selector)
510 if (rec->selector < selector)
512 if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
517 if (!sk_danetls_record_insert(dane->trecs, t, i)) {
519 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
522 dane->umask |= DANETLS_USAGE_BIT(usage);
527 static void clear_ciphers(SSL *s)
529 /* clear the current cipher */
530 ssl_clear_cipher_ctx(s);
531 ssl_clear_hash_ctx(&s->read_hash);
532 ssl_clear_hash_ctx(&s->write_hash);
535 int SSL_clear(SSL *s)
537 if (s->method == NULL) {
538 SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED);
542 if (ssl_clear_bad_session(s)) {
543 SSL_SESSION_free(s->session);
551 if (s->renegotiate) {
552 SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR);
556 ossl_statem_clear(s);
558 s->version = s->method->version;
559 s->client_version = s->version;
560 s->rwstate = SSL_NOTHING;
562 BUF_MEM_free(s->init_buf);
567 /* Reset DANE verification result state */
570 X509_free(s->dane.mcert);
571 s->dane.mcert = NULL;
572 s->dane.mtlsa = NULL;
574 /* Clear the verification result peername */
575 X509_VERIFY_PARAM_move_peername(s->param, NULL);
578 * Check to see if we were changed into a different method, if so, revert
579 * back if we are not doing session-id reuse.
581 if (!ossl_statem_get_in_handshake(s) && (s->session == NULL)
582 && (s->method != s->ctx->method)) {
583 s->method->ssl_free(s);
584 s->method = s->ctx->method;
585 if (!s->method->ssl_new(s))
588 s->method->ssl_clear(s);
590 RECORD_LAYER_clear(&s->rlayer);
595 /** Used to change an SSL_CTXs default SSL method type */
596 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
598 STACK_OF(SSL_CIPHER) *sk;
602 sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list),
603 &(ctx->cipher_list_by_id),
604 SSL_DEFAULT_CIPHER_LIST, ctx->cert);
605 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
606 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,
607 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
613 SSL *SSL_new(SSL_CTX *ctx)
618 SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
621 if (ctx->method == NULL) {
622 SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
626 s = OPENSSL_zalloc(sizeof(*s));
630 RECORD_LAYER_init(&s->rlayer, s);
632 s->options = ctx->options;
633 s->min_proto_version = ctx->min_proto_version;
634 s->max_proto_version = ctx->max_proto_version;
636 s->max_cert_list = ctx->max_cert_list;
640 * Earlier library versions used to copy the pointer to the CERT, not
641 * its contents; only when setting new parameters for the per-SSL
642 * copy, ssl_cert_new would be called (and the direct reference to
643 * the per-SSL_CTX settings would be lost, but those still were
644 * indirectly accessed for various purposes, and for that reason they
645 * used to be known as s->ctx->default_cert). Now we don't look at the
646 * SSL_CTX's CERT after having duplicated it once.
648 s->cert = ssl_cert_dup(ctx->cert);
652 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
653 s->msg_callback = ctx->msg_callback;
654 s->msg_callback_arg = ctx->msg_callback_arg;
655 s->verify_mode = ctx->verify_mode;
656 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
657 s->sid_ctx_length = ctx->sid_ctx_length;
658 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
659 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
660 s->verify_callback = ctx->default_verify_callback;
661 s->generate_session_id = ctx->generate_session_id;
663 s->param = X509_VERIFY_PARAM_new();
664 if (s->param == NULL)
666 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
667 s->quiet_shutdown = ctx->quiet_shutdown;
668 s->max_send_fragment = ctx->max_send_fragment;
670 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
672 s->tlsext_debug_cb = 0;
673 s->tlsext_debug_arg = NULL;
674 s->tlsext_ticket_expected = 0;
675 s->tlsext_status_type = -1;
676 s->tlsext_status_expected = 0;
677 s->tlsext_ocsp_ids = NULL;
678 s->tlsext_ocsp_exts = NULL;
679 s->tlsext_ocsp_resp = NULL;
680 s->tlsext_ocsp_resplen = -1;
681 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
682 s->initial_ctx = ctx;
683 # ifndef OPENSSL_NO_EC
684 if (ctx->tlsext_ecpointformatlist) {
685 s->tlsext_ecpointformatlist =
686 OPENSSL_memdup(ctx->tlsext_ecpointformatlist,
687 ctx->tlsext_ecpointformatlist_length);
688 if (!s->tlsext_ecpointformatlist)
690 s->tlsext_ecpointformatlist_length =
691 ctx->tlsext_ecpointformatlist_length;
693 if (ctx->tlsext_ellipticcurvelist) {
694 s->tlsext_ellipticcurvelist =
695 OPENSSL_memdup(ctx->tlsext_ellipticcurvelist,
696 ctx->tlsext_ellipticcurvelist_length);
697 if (!s->tlsext_ellipticcurvelist)
699 s->tlsext_ellipticcurvelist_length =
700 ctx->tlsext_ellipticcurvelist_length;
703 # ifndef OPENSSL_NO_NEXTPROTONEG
704 s->next_proto_negotiated = NULL;
707 if (s->ctx->alpn_client_proto_list) {
708 s->alpn_client_proto_list =
709 OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
710 if (s->alpn_client_proto_list == NULL)
712 memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
713 s->ctx->alpn_client_proto_list_len);
714 s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
717 s->verify_result = X509_V_OK;
719 s->default_passwd_callback = ctx->default_passwd_callback;
720 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
722 s->method = ctx->method;
724 if (!s->method->ssl_new(s))
727 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
732 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
734 #ifndef OPENSSL_NO_PSK
735 s->psk_client_callback = ctx->psk_client_callback;
736 s->psk_server_callback = ctx->psk_server_callback;
744 SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
748 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
749 unsigned int sid_ctx_len)
751 if (sid_ctx_len > sizeof ctx->sid_ctx) {
752 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
753 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
756 ctx->sid_ctx_length = sid_ctx_len;
757 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
762 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
763 unsigned int sid_ctx_len)
765 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
766 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
767 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
770 ssl->sid_ctx_length = sid_ctx_len;
771 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
776 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
778 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
779 ctx->generate_session_id = cb;
780 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
784 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
786 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
787 ssl->generate_session_id = cb;
788 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
792 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
796 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
797 * we can "construct" a session to give us the desired check - ie. to
798 * find if there's a session in the hash table that would conflict with
799 * any new session built out of this id/id_len and the ssl_version in use
804 if (id_len > sizeof r.session_id)
807 r.ssl_version = ssl->version;
808 r.session_id_length = id_len;
809 memcpy(r.session_id, id, id_len);
811 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
812 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
813 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
817 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
819 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
822 int SSL_set_purpose(SSL *s, int purpose)
824 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
827 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
829 return X509_VERIFY_PARAM_set_trust(s->param, trust);
832 int SSL_set_trust(SSL *s, int trust)
834 return X509_VERIFY_PARAM_set_trust(s->param, trust);
837 int SSL_set1_host(SSL *s, const char *hostname)
839 return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0);
842 int SSL_add1_host(SSL *s, const char *hostname)
844 return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0);
847 void SSL_set_hostflags(SSL *s, unsigned int flags)
849 X509_VERIFY_PARAM_set_hostflags(s->param, flags);
852 const char *SSL_get0_peername(SSL *s)
854 return X509_VERIFY_PARAM_get0_peername(s->param);
857 int SSL_CTX_dane_enable(SSL_CTX *ctx)
859 return dane_ctx_enable(&ctx->dane);
862 int SSL_dane_enable(SSL *s, const char *basedomain)
864 struct dane_st *dane = &s->dane;
866 if (s->ctx->dane.mdmax == 0) {
867 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED);
870 if (dane->trecs != NULL) {
871 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED);
875 /* Primary RFC6125 reference identifier */
876 if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) {
877 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
881 /* Default SNI name */
882 if (s->tlsext_hostname == NULL) {
883 if (!SSL_set_tlsext_host_name(s, basedomain))
889 dane->dctx = &s->ctx->dane;
890 dane->trecs = sk_danetls_record_new_null();
892 if (dane->trecs == NULL) {
893 SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE);
899 int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
901 struct dane_st *dane = &s->dane;
903 if (!DANETLS_ENABLED(dane))
907 *mcert = dane->mcert;
909 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
914 int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
915 uint8_t *mtype, unsigned const char **data, size_t *dlen)
917 struct dane_st *dane = &s->dane;
919 if (!DANETLS_ENABLED(dane))
923 *usage = dane->mtlsa->usage;
925 *selector = dane->mtlsa->selector;
927 *mtype = dane->mtlsa->mtype;
929 *data = dane->mtlsa->data;
931 *dlen = dane->mtlsa->dlen;
936 struct dane_st *SSL_get0_dane(SSL *s)
941 int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
942 uint8_t mtype, unsigned char *data, size_t dlen)
944 return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen);
947 int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype, uint8_t ord)
949 return dane_mtype_set(&ctx->dane, md, mtype, ord);
952 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
954 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
957 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
959 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
962 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
967 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
972 void SSL_certs_clear(SSL *s)
974 ssl_cert_clear_certs(s->cert);
977 void SSL_free(SSL *s)
984 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL);
992 fprintf(stderr, "SSL_free, bad reference count\n");
997 X509_VERIFY_PARAM_free(s->param);
998 dane_final(&s->dane);
999 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1001 if (s->bbio != NULL) {
1002 /* If the buffering BIO is in place, pop it off */
1003 if (s->bbio == s->wbio) {
1004 s->wbio = BIO_pop(s->wbio);
1009 BIO_free_all(s->rbio);
1010 if (s->wbio != s->rbio)
1011 BIO_free_all(s->wbio);
1013 BUF_MEM_free(s->init_buf);
1015 /* add extra stuff */
1016 sk_SSL_CIPHER_free(s->cipher_list);
1017 sk_SSL_CIPHER_free(s->cipher_list_by_id);
1019 /* Make the next call work :-) */
1020 if (s->session != NULL) {
1021 ssl_clear_bad_session(s);
1022 SSL_SESSION_free(s->session);
1027 ssl_cert_free(s->cert);
1028 /* Free up if allocated */
1030 OPENSSL_free(s->tlsext_hostname);
1031 SSL_CTX_free(s->initial_ctx);
1032 #ifndef OPENSSL_NO_EC
1033 OPENSSL_free(s->tlsext_ecpointformatlist);
1034 OPENSSL_free(s->tlsext_ellipticcurvelist);
1035 #endif /* OPENSSL_NO_EC */
1036 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);
1037 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
1038 OPENSSL_free(s->tlsext_ocsp_resp);
1039 OPENSSL_free(s->alpn_client_proto_list);
1041 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);
1043 if (s->method != NULL)
1044 s->method->ssl_free(s);
1046 RECORD_LAYER_release(&s->rlayer);
1048 SSL_CTX_free(s->ctx);
1050 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1051 OPENSSL_free(s->next_proto_negotiated);
1054 #ifndef OPENSSL_NO_SRTP
1055 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
1061 void SSL_set_rbio(SSL *s, BIO *rbio)
1063 if (s->rbio != rbio)
1064 BIO_free_all(s->rbio);
1068 void SSL_set_wbio(SSL *s, BIO *wbio)
1071 * If the output buffering BIO is still in place, remove it
1073 if (s->bbio != NULL) {
1074 if (s->wbio == s->bbio) {
1075 s->wbio = s->wbio->next_bio;
1076 s->bbio->next_bio = NULL;
1079 if (s->wbio != wbio && s->rbio != s->wbio)
1080 BIO_free_all(s->wbio);
1084 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1086 SSL_set_wbio(s, wbio);
1087 SSL_set_rbio(s, rbio);
1090 BIO *SSL_get_rbio(const SSL *s)
1095 BIO *SSL_get_wbio(const SSL *s)
1100 int SSL_get_fd(const SSL *s)
1102 return (SSL_get_rfd(s));
1105 int SSL_get_rfd(const SSL *s)
1110 b = SSL_get_rbio(s);
1111 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1113 BIO_get_fd(r, &ret);
1117 int SSL_get_wfd(const SSL *s)
1122 b = SSL_get_wbio(s);
1123 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1125 BIO_get_fd(r, &ret);
1129 #ifndef OPENSSL_NO_SOCK
1130 int SSL_set_fd(SSL *s, int fd)
1135 bio = BIO_new(BIO_s_socket());
1138 SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
1141 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1142 SSL_set_bio(s, bio, bio);
1148 int SSL_set_wfd(SSL *s, int fd)
1153 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
1154 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) {
1155 bio = BIO_new(BIO_s_socket());
1158 SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
1161 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1162 SSL_set_bio(s, SSL_get_rbio(s), bio);
1164 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s));
1170 int SSL_set_rfd(SSL *s, int fd)
1175 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
1176 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) {
1177 bio = BIO_new(BIO_s_socket());
1180 SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
1183 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1184 SSL_set_bio(s, bio, SSL_get_wbio(s));
1186 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s));
1193 /* return length of latest Finished message we sent, copy to 'buf' */
1194 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
1198 if (s->s3 != NULL) {
1199 ret = s->s3->tmp.finish_md_len;
1202 memcpy(buf, s->s3->tmp.finish_md, count);
1207 /* return length of latest Finished message we expected, copy to 'buf' */
1208 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
1212 if (s->s3 != NULL) {
1213 ret = s->s3->tmp.peer_finish_md_len;
1216 memcpy(buf, s->s3->tmp.peer_finish_md, count);
1221 int SSL_get_verify_mode(const SSL *s)
1223 return (s->verify_mode);
1226 int SSL_get_verify_depth(const SSL *s)
1228 return X509_VERIFY_PARAM_get_depth(s->param);
1231 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
1232 return (s->verify_callback);
1235 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
1237 return (ctx->verify_mode);
1240 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
1242 return X509_VERIFY_PARAM_get_depth(ctx->param);
1245 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
1246 return (ctx->default_verify_callback);
1249 void SSL_set_verify(SSL *s, int mode,
1250 int (*callback) (int ok, X509_STORE_CTX *ctx))
1252 s->verify_mode = mode;
1253 if (callback != NULL)
1254 s->verify_callback = callback;
1257 void SSL_set_verify_depth(SSL *s, int depth)
1259 X509_VERIFY_PARAM_set_depth(s->param, depth);
1262 void SSL_set_read_ahead(SSL *s, int yes)
1264 RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
1267 int SSL_get_read_ahead(const SSL *s)
1269 return RECORD_LAYER_get_read_ahead(&s->rlayer);
1272 int SSL_pending(const SSL *s)
1275 * SSL_pending cannot work properly if read-ahead is enabled
1276 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1277 * impossible to fix since SSL_pending cannot report errors that may be
1278 * observed while scanning the new data. (Note that SSL_pending() is
1279 * often used as a boolean value, so we'd better not return -1.)
1281 return (s->method->ssl_pending(s));
1284 X509 *SSL_get_peer_certificate(const SSL *s)
1288 if ((s == NULL) || (s->session == NULL))
1291 r = s->session->peer;
1301 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
1305 if ((s == NULL) || (s->session == NULL))
1308 r = s->session->peer_chain;
1311 * If we are a client, cert_chain includes the peer's own certificate; if
1312 * we are a server, it does not.
1319 * Now in theory, since the calling process own 't' it should be safe to
1320 * modify. We need to be able to read f without being hassled
1322 int SSL_copy_session_id(SSL *t, const SSL *f)
1324 /* Do we need to to SSL locking? */
1325 if (!SSL_set_session(t, SSL_get_session(f))) {
1330 * what if we are setup for one protocol version but want to talk another
1332 if (t->method != f->method) {
1333 t->method->ssl_free(t);
1334 t->method = f->method;
1335 if (t->method->ssl_new(t) == 0)
1339 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT);
1340 ssl_cert_free(t->cert);
1342 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) {
1349 /* Fix this so it checks all the valid key/cert options */
1350 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
1352 if ((ctx == NULL) ||
1353 (ctx->cert->key->x509 == NULL)) {
1354 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
1355 SSL_R_NO_CERTIFICATE_ASSIGNED);
1358 if (ctx->cert->key->privatekey == NULL) {
1359 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
1360 SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1363 return (X509_check_private_key
1364 (ctx->cert->key->x509, ctx->cert->key->privatekey));
1367 /* Fix this function so that it takes an optional type parameter */
1368 int SSL_check_private_key(const SSL *ssl)
1371 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
1374 if (ssl->cert->key->x509 == NULL) {
1375 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
1378 if (ssl->cert->key->privatekey == NULL) {
1379 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1382 return (X509_check_private_key(ssl->cert->key->x509,
1383 ssl->cert->key->privatekey));
1386 int SSL_waiting_for_async(SSL *s)
1394 int SSL_get_async_wait_fd(SSL *s)
1399 return ASYNC_get_wait_fd(s->job);
1402 int SSL_accept(SSL *s)
1404 if (s->handshake_func == 0) {
1405 /* Not properly initialized yet */
1406 SSL_set_accept_state(s);
1409 return SSL_do_handshake(s);
1412 int SSL_connect(SSL *s)
1414 if (s->handshake_func == 0) {
1415 /* Not properly initialized yet */
1416 SSL_set_connect_state(s);
1419 return SSL_do_handshake(s);
1422 long SSL_get_default_timeout(const SSL *s)
1424 return (s->method->get_timeout());
1427 static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
1428 int (*func)(void *)) {
1430 switch(ASYNC_start_job(&s->job, &ret, func, args,
1431 sizeof(struct ssl_async_args))) {
1433 s->rwstate = SSL_NOTHING;
1434 SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC);
1437 s->rwstate = SSL_ASYNC_PAUSED;
1443 s->rwstate = SSL_NOTHING;
1444 SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR);
1445 /* Shouldn't happen */
1450 static int ssl_io_intern(void *vargs)
1452 struct ssl_async_args *args;
1457 args = (struct ssl_async_args *)vargs;
1461 if (args->type == 1)
1462 return args->f.func1(s, buf, num);
1464 return args->f.func2(s, buf, num);
1467 int SSL_read(SSL *s, void *buf, int num)
1469 if (s->handshake_func == 0) {
1470 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
1474 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1475 s->rwstate = SSL_NOTHING;
1479 if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1480 struct ssl_async_args args;
1486 args.f.func1 = s->method->ssl_read;
1488 return ssl_start_async_job(s, &args, ssl_io_intern);
1490 return s->method->ssl_read(s, buf, num);
1494 int SSL_peek(SSL *s, void *buf, int num)
1496 if (s->handshake_func == 0) {
1497 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
1501 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1504 if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1505 struct ssl_async_args args;
1511 args.f.func1 = s->method->ssl_peek;
1513 return ssl_start_async_job(s, &args, ssl_io_intern);
1515 return s->method->ssl_peek(s, buf, num);
1519 int SSL_write(SSL *s, const void *buf, int num)
1521 if (s->handshake_func == 0) {
1522 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
1526 if (s->shutdown & SSL_SENT_SHUTDOWN) {
1527 s->rwstate = SSL_NOTHING;
1528 SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN);
1532 if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1533 struct ssl_async_args args;
1536 args.buf = (void *)buf;
1539 args.f.func2 = s->method->ssl_write;
1541 return ssl_start_async_job(s, &args, ssl_io_intern);
1543 return s->method->ssl_write(s, buf, num);
1547 int SSL_shutdown(SSL *s)
1550 * Note that this function behaves differently from what one might
1551 * expect. Return values are 0 for no success (yet), 1 for success; but
1552 * calling it once is usually not enough, even if blocking I/O is used
1553 * (see ssl3_shutdown).
1556 if (s->handshake_func == 0) {
1557 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1561 if (!SSL_in_init(s))
1562 return (s->method->ssl_shutdown(s));
1567 int SSL_renegotiate(SSL *s)
1569 if (s->renegotiate == 0)
1574 return (s->method->ssl_renegotiate(s));
1577 int SSL_renegotiate_abbreviated(SSL *s)
1579 if (s->renegotiate == 0)
1584 return (s->method->ssl_renegotiate(s));
1587 int SSL_renegotiate_pending(SSL *s)
1590 * becomes true when negotiation is requested; false again once a
1591 * handshake has finished
1593 return (s->renegotiate != 0);
1596 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
1601 case SSL_CTRL_GET_READ_AHEAD:
1602 return (RECORD_LAYER_get_read_ahead(&s->rlayer));
1603 case SSL_CTRL_SET_READ_AHEAD:
1604 l = RECORD_LAYER_get_read_ahead(&s->rlayer);
1605 RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
1608 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1609 s->msg_callback_arg = parg;
1613 return (s->mode |= larg);
1614 case SSL_CTRL_CLEAR_MODE:
1615 return (s->mode &= ~larg);
1616 case SSL_CTRL_GET_MAX_CERT_LIST:
1617 return (s->max_cert_list);
1618 case SSL_CTRL_SET_MAX_CERT_LIST:
1619 l = s->max_cert_list;
1620 s->max_cert_list = larg;
1622 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1623 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1625 s->max_send_fragment = larg;
1627 case SSL_CTRL_GET_RI_SUPPORT:
1629 return s->s3->send_connection_binding;
1632 case SSL_CTRL_CERT_FLAGS:
1633 return (s->cert->cert_flags |= larg);
1634 case SSL_CTRL_CLEAR_CERT_FLAGS:
1635 return (s->cert->cert_flags &= ~larg);
1637 case SSL_CTRL_GET_RAW_CIPHERLIST:
1639 if (s->s3->tmp.ciphers_raw == NULL)
1641 *(unsigned char **)parg = s->s3->tmp.ciphers_raw;
1642 return (int)s->s3->tmp.ciphers_rawlen;
1644 return TLS_CIPHER_LEN;
1646 case SSL_CTRL_GET_EXTMS_SUPPORT:
1647 if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s))
1649 if (s->session->flags & SSL_SESS_FLAG_EXTMS)
1653 case SSL_CTRL_SET_MIN_PROTO_VERSION:
1654 return ssl_set_version_bound(s->ctx->method->version, (int)larg,
1655 &s->min_proto_version);
1656 case SSL_CTRL_SET_MAX_PROTO_VERSION:
1657 return ssl_set_version_bound(s->ctx->method->version, (int)larg,
1658 &s->max_proto_version);
1660 return (s->method->ssl_ctrl(s, cmd, larg, parg));
1664 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
1667 case SSL_CTRL_SET_MSG_CALLBACK:
1668 s->msg_callback = (void (*)
1669 (int write_p, int version, int content_type,
1670 const void *buf, size_t len, SSL *ssl,
1675 return (s->method->ssl_callback_ctrl(s, cmd, fp));
1679 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1681 return ctx->sessions;
1684 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
1687 /* For some cases with ctx == NULL perform syntax checks */
1690 #ifndef OPENSSL_NO_EC
1691 case SSL_CTRL_SET_CURVES_LIST:
1692 return tls1_set_curves_list(NULL, NULL, parg);
1694 case SSL_CTRL_SET_SIGALGS_LIST:
1695 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1696 return tls1_set_sigalgs_list(NULL, parg, 0);
1703 case SSL_CTRL_GET_READ_AHEAD:
1704 return (ctx->read_ahead);
1705 case SSL_CTRL_SET_READ_AHEAD:
1706 l = ctx->read_ahead;
1707 ctx->read_ahead = larg;
1710 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1711 ctx->msg_callback_arg = parg;
1714 case SSL_CTRL_GET_MAX_CERT_LIST:
1715 return (ctx->max_cert_list);
1716 case SSL_CTRL_SET_MAX_CERT_LIST:
1717 l = ctx->max_cert_list;
1718 ctx->max_cert_list = larg;
1721 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1722 l = ctx->session_cache_size;
1723 ctx->session_cache_size = larg;
1725 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1726 return (ctx->session_cache_size);
1727 case SSL_CTRL_SET_SESS_CACHE_MODE:
1728 l = ctx->session_cache_mode;
1729 ctx->session_cache_mode = larg;
1731 case SSL_CTRL_GET_SESS_CACHE_MODE:
1732 return (ctx->session_cache_mode);
1734 case SSL_CTRL_SESS_NUMBER:
1735 return (lh_SSL_SESSION_num_items(ctx->sessions));
1736 case SSL_CTRL_SESS_CONNECT:
1737 return (ctx->stats.sess_connect);
1738 case SSL_CTRL_SESS_CONNECT_GOOD:
1739 return (ctx->stats.sess_connect_good);
1740 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1741 return (ctx->stats.sess_connect_renegotiate);
1742 case SSL_CTRL_SESS_ACCEPT:
1743 return (ctx->stats.sess_accept);
1744 case SSL_CTRL_SESS_ACCEPT_GOOD:
1745 return (ctx->stats.sess_accept_good);
1746 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1747 return (ctx->stats.sess_accept_renegotiate);
1748 case SSL_CTRL_SESS_HIT:
1749 return (ctx->stats.sess_hit);
1750 case SSL_CTRL_SESS_CB_HIT:
1751 return (ctx->stats.sess_cb_hit);
1752 case SSL_CTRL_SESS_MISSES:
1753 return (ctx->stats.sess_miss);
1754 case SSL_CTRL_SESS_TIMEOUTS:
1755 return (ctx->stats.sess_timeout);
1756 case SSL_CTRL_SESS_CACHE_FULL:
1757 return (ctx->stats.sess_cache_full);
1759 return (ctx->mode |= larg);
1760 case SSL_CTRL_CLEAR_MODE:
1761 return (ctx->mode &= ~larg);
1762 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1763 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1765 ctx->max_send_fragment = larg;
1767 case SSL_CTRL_CERT_FLAGS:
1768 return (ctx->cert->cert_flags |= larg);
1769 case SSL_CTRL_CLEAR_CERT_FLAGS:
1770 return (ctx->cert->cert_flags &= ~larg);
1771 case SSL_CTRL_SET_MIN_PROTO_VERSION:
1772 return ssl_set_version_bound(ctx->method->version, (int)larg,
1773 &ctx->min_proto_version);
1774 case SSL_CTRL_SET_MAX_PROTO_VERSION:
1775 return ssl_set_version_bound(ctx->method->version, (int)larg,
1776 &ctx->max_proto_version);
1778 return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg));
1782 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
1785 case SSL_CTRL_SET_MSG_CALLBACK:
1786 ctx->msg_callback = (void (*)
1787 (int write_p, int version, int content_type,
1788 const void *buf, size_t len, SSL *ssl,
1793 return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp));
1797 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1806 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1807 const SSL_CIPHER *const *bp)
1809 if ((*ap)->id > (*bp)->id)
1811 if ((*ap)->id < (*bp)->id)
1816 /** return a STACK of the ciphers available for the SSL and in order of
1818 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1821 if (s->cipher_list != NULL) {
1822 return (s->cipher_list);
1823 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
1824 return (s->ctx->cipher_list);
1830 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
1832 if ((s == NULL) || (s->session == NULL) || !s->server)
1834 return s->session->ciphers;
1837 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
1839 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
1841 ciphers = SSL_get_ciphers(s);
1844 ssl_set_client_disabled(s);
1845 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
1846 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
1847 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) {
1849 sk = sk_SSL_CIPHER_new_null();
1852 if (!sk_SSL_CIPHER_push(sk, c)) {
1853 sk_SSL_CIPHER_free(sk);
1861 /** return a STACK of the ciphers available for the SSL and in order of
1863 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1866 if (s->cipher_list_by_id != NULL) {
1867 return (s->cipher_list_by_id);
1868 } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
1869 return (s->ctx->cipher_list_by_id);
1875 /** The old interface to get the same thing as SSL_get_ciphers() */
1876 const char *SSL_get_cipher_list(const SSL *s, int n)
1878 const SSL_CIPHER *c;
1879 STACK_OF(SSL_CIPHER) *sk;
1883 sk = SSL_get_ciphers(s);
1884 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1886 c = sk_SSL_CIPHER_value(sk, n);
1892 /** specify the ciphers to be used by default by the SSL_CTX */
1893 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1895 STACK_OF(SSL_CIPHER) *sk;
1897 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list,
1898 &ctx->cipher_list_by_id, str, ctx->cert);
1900 * ssl_create_cipher_list may return an empty stack if it was unable to
1901 * find a cipher matching the given rule string (for example if the rule
1902 * string specifies a cipher which has been disabled). This is not an
1903 * error as far as ssl_create_cipher_list is concerned, and hence
1904 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
1908 else if (sk_SSL_CIPHER_num(sk) == 0) {
1909 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1915 /** specify the ciphers to be used by the SSL */
1916 int SSL_set_cipher_list(SSL *s, const char *str)
1918 STACK_OF(SSL_CIPHER) *sk;
1920 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list,
1921 &s->cipher_list_by_id, str, s->cert);
1922 /* see comment in SSL_CTX_set_cipher_list */
1925 else if (sk_SSL_CIPHER_num(sk) == 0) {
1926 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1932 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len)
1935 STACK_OF(SSL_CIPHER) *sk;
1936 const SSL_CIPHER *c;
1939 if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2))
1943 sk = s->session->ciphers;
1945 if (sk_SSL_CIPHER_num(sk) == 0)
1948 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
1951 c = sk_SSL_CIPHER_value(sk, i);
1952 n = strlen(c->name);
1968 /** return a servername extension value if provided in Client Hello, or NULL.
1969 * So far, only host_name types are defined (RFC 3546).
1972 const char *SSL_get_servername(const SSL *s, const int type)
1974 if (type != TLSEXT_NAMETYPE_host_name)
1977 return s->session && !s->tlsext_hostname ?
1978 s->session->tlsext_hostname : s->tlsext_hostname;
1981 int SSL_get_servername_type(const SSL *s)
1984 && (!s->tlsext_hostname ? s->session->
1985 tlsext_hostname : s->tlsext_hostname))
1986 return TLSEXT_NAMETYPE_host_name;
1991 * SSL_select_next_proto implements the standard protocol selection. It is
1992 * expected that this function is called from the callback set by
1993 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
1994 * vector of 8-bit, length prefixed byte strings. The length byte itself is
1995 * not included in the length. A byte string of length 0 is invalid. No byte
1996 * string may be truncated. The current, but experimental algorithm for
1997 * selecting the protocol is: 1) If the server doesn't support NPN then this
1998 * is indicated to the callback. In this case, the client application has to
1999 * abort the connection or have a default application level protocol. 2) If
2000 * the server supports NPN, but advertises an empty list then the client
2001 * selects the first protcol in its list, but indicates via the API that this
2002 * fallback case was enacted. 3) Otherwise, the client finds the first
2003 * protocol in the server's list that it supports and selects this protocol.
2004 * This is because it's assumed that the server has better information about
2005 * which protocol a client should use. 4) If the client doesn't support any
2006 * of the server's advertised protocols, then this is treated the same as
2007 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2008 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2010 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
2011 const unsigned char *server,
2012 unsigned int server_len,
2013 const unsigned char *client,
2014 unsigned int client_len)
2017 const unsigned char *result;
2018 int status = OPENSSL_NPN_UNSUPPORTED;
2021 * For each protocol in server preference order, see if we support it.
2023 for (i = 0; i < server_len;) {
2024 for (j = 0; j < client_len;) {
2025 if (server[i] == client[j] &&
2026 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
2027 /* We found a match */
2028 result = &server[i];
2029 status = OPENSSL_NPN_NEGOTIATED;
2039 /* There's no overlap between our protocols and the server's list. */
2041 status = OPENSSL_NPN_NO_OVERLAP;
2044 *out = (unsigned char *)result + 1;
2045 *outlen = result[0];
2049 #ifndef OPENSSL_NO_NEXTPROTONEG
2051 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2052 * client's requested protocol for this connection and returns 0. If the
2053 * client didn't request any protocol, then *data is set to NULL. Note that
2054 * the client can request any protocol it chooses. The value returned from
2055 * this function need not be a member of the list of supported protocols
2056 * provided by the callback.
2058 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
2061 *data = s->next_proto_negotiated;
2065 *len = s->next_proto_negotiated_len;
2070 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
2071 * a TLS server needs a list of supported protocols for Next Protocol
2072 * Negotiation. The returned list must be in wire format. The list is
2073 * returned by setting |out| to point to it and |outlen| to its length. This
2074 * memory will not be modified, but one should assume that the SSL* keeps a
2075 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2076 * wishes to advertise. Otherwise, no such extension will be included in the
2079 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx,
2080 int (*cb) (SSL *ssl,
2083 unsigned int *outlen,
2084 void *arg), void *arg)
2086 ctx->next_protos_advertised_cb = cb;
2087 ctx->next_protos_advertised_cb_arg = arg;
2091 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2092 * client needs to select a protocol from the server's provided list. |out|
2093 * must be set to point to the selected protocol (which may be within |in|).
2094 * The length of the protocol name must be written into |outlen|. The
2095 * server's advertised protocols are provided in |in| and |inlen|. The
2096 * callback can assume that |in| is syntactically valid. The client must
2097 * select a protocol. It is fatal to the connection if this callback returns
2098 * a value other than SSL_TLSEXT_ERR_OK.
2100 void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx,
2101 int (*cb) (SSL *s, unsigned char **out,
2102 unsigned char *outlen,
2103 const unsigned char *in,
2105 void *arg), void *arg)
2107 ctx->next_proto_select_cb = cb;
2108 ctx->next_proto_select_cb_arg = arg;
2113 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2114 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2115 * length-prefixed strings). Returns 0 on success.
2117 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
2118 unsigned protos_len)
2120 OPENSSL_free(ctx->alpn_client_proto_list);
2121 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
2122 if (ctx->alpn_client_proto_list == NULL)
2124 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
2125 ctx->alpn_client_proto_list_len = protos_len;
2131 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2132 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2133 * length-prefixed strings). Returns 0 on success.
2135 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
2136 unsigned protos_len)
2138 OPENSSL_free(ssl->alpn_client_proto_list);
2139 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
2140 if (ssl->alpn_client_proto_list == NULL)
2142 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
2143 ssl->alpn_client_proto_list_len = protos_len;
2149 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2150 * called during ClientHello processing in order to select an ALPN protocol
2151 * from the client's list of offered protocols.
2153 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
2154 int (*cb) (SSL *ssl,
2155 const unsigned char **out,
2156 unsigned char *outlen,
2157 const unsigned char *in,
2159 void *arg), void *arg)
2161 ctx->alpn_select_cb = cb;
2162 ctx->alpn_select_cb_arg = arg;
2166 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
2167 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
2168 * (not including the leading length-prefix byte). If the server didn't
2169 * respond with a negotiated protocol then |*len| will be zero.
2171 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
2176 *data = ssl->s3->alpn_selected;
2180 *len = ssl->s3->alpn_selected_len;
2184 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
2185 const char *label, size_t llen,
2186 const unsigned char *p, size_t plen,
2189 if (s->version < TLS1_VERSION)
2192 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
2197 static unsigned long ssl_session_hash(const SSL_SESSION *a)
2202 ((unsigned int)a->session_id[0]) |
2203 ((unsigned int)a->session_id[1] << 8L) |
2204 ((unsigned long)a->session_id[2] << 16L) |
2205 ((unsigned long)a->session_id[3] << 24L);
2210 * NB: If this function (or indeed the hash function which uses a sort of
2211 * coarser function than this one) is changed, ensure
2212 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2213 * being able to construct an SSL_SESSION that will collide with any existing
2214 * session with a matching session ID.
2216 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
2218 if (a->ssl_version != b->ssl_version)
2220 if (a->session_id_length != b->session_id_length)
2222 return (memcmp(a->session_id, b->session_id, a->session_id_length));
2226 * These wrapper functions should remain rather than redeclaring
2227 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2228 * variable. The reason is that the functions aren't static, they're exposed
2232 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
2234 SSL_CTX *ret = NULL;
2237 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
2241 if (FIPS_mode() && (meth->version < TLS1_VERSION)) {
2242 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_AT_LEAST_TLS_1_0_NEEDED_IN_FIPS_MODE);
2246 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2247 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
2250 ret = OPENSSL_zalloc(sizeof(*ret));
2255 ret->min_proto_version = 0;
2256 ret->max_proto_version = 0;
2257 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
2258 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
2259 /* We take the system default. */
2260 ret->session_timeout = meth->get_timeout();
2261 ret->references = 1;
2262 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
2263 ret->verify_mode = SSL_VERIFY_NONE;
2264 if ((ret->cert = ssl_cert_new()) == NULL)
2267 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
2268 if (ret->sessions == NULL)
2270 ret->cert_store = X509_STORE_new();
2271 if (ret->cert_store == NULL)
2274 if (!ssl_create_cipher_list(ret->method,
2275 &ret->cipher_list, &ret->cipher_list_by_id,
2276 SSL_DEFAULT_CIPHER_LIST, ret->cert)
2277 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
2278 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
2282 ret->param = X509_VERIFY_PARAM_new();
2283 if (ret->param == NULL)
2286 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
2287 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
2290 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
2291 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
2295 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL)
2298 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
2300 /* No compression for DTLS */
2301 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
2302 ret->comp_methods = SSL_COMP_get_compression_methods();
2304 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
2306 /* Setup RFC4507 ticket keys */
2307 if ((RAND_bytes(ret->tlsext_tick_key_name, 16) <= 0)
2308 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
2309 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
2310 ret->options |= SSL_OP_NO_TICKET;
2312 #ifndef OPENSSL_NO_SRP
2313 if (!SSL_CTX_SRP_CTX_init(ret))
2316 #ifndef OPENSSL_NO_ENGINE
2317 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2318 # define eng_strx(x) #x
2319 # define eng_str(x) eng_strx(x)
2320 /* Use specific client engine automatically... ignore errors */
2323 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2326 ENGINE_load_builtin_engines();
2327 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2329 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
2335 * Default is to connect to non-RI servers. When RI is more widely
2336 * deployed might change this.
2338 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
2342 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
2348 void SSL_CTX_free(SSL_CTX *a)
2355 i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX);
2357 REF_PRINT("SSL_CTX", a);
2363 fprintf(stderr, "SSL_CTX_free, bad reference count\n");
2368 X509_VERIFY_PARAM_free(a->param);
2369 dane_ctx_final(&a->dane);
2372 * Free internal session cache. However: the remove_cb() may reference
2373 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2374 * after the sessions were flushed.
2375 * As the ex_data handling routines might also touch the session cache,
2376 * the most secure solution seems to be: empty (flush) the cache, then
2377 * free ex_data, then finally free the cache.
2378 * (See ticket [openssl.org #212].)
2380 if (a->sessions != NULL)
2381 SSL_CTX_flush_sessions(a, 0);
2383 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
2384 lh_SSL_SESSION_free(a->sessions);
2385 X509_STORE_free(a->cert_store);
2386 sk_SSL_CIPHER_free(a->cipher_list);
2387 sk_SSL_CIPHER_free(a->cipher_list_by_id);
2388 ssl_cert_free(a->cert);
2389 sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free);
2390 sk_X509_pop_free(a->extra_certs, X509_free);
2391 a->comp_methods = NULL;
2392 #ifndef OPENSSL_NO_SRTP
2393 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
2395 #ifndef OPENSSL_NO_SRP
2396 SSL_CTX_SRP_CTX_free(a);
2398 #ifndef OPENSSL_NO_ENGINE
2399 if (a->client_cert_engine)
2400 ENGINE_finish(a->client_cert_engine);
2403 #ifndef OPENSSL_NO_EC
2404 OPENSSL_free(a->tlsext_ecpointformatlist);
2405 OPENSSL_free(a->tlsext_ellipticcurvelist);
2407 OPENSSL_free(a->alpn_client_proto_list);
2412 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2414 ctx->default_passwd_callback = cb;
2417 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
2419 ctx->default_passwd_callback_userdata = u;
2422 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
2424 s->default_passwd_callback = cb;
2427 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
2429 s->default_passwd_callback_userdata = u;
2432 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
2433 int (*cb) (X509_STORE_CTX *, void *),
2436 ctx->app_verify_callback = cb;
2437 ctx->app_verify_arg = arg;
2440 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
2441 int (*cb) (int, X509_STORE_CTX *))
2443 ctx->verify_mode = mode;
2444 ctx->default_verify_callback = cb;
2447 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
2449 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2452 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
2455 ssl_cert_set_cert_cb(c->cert, cb, arg);
2458 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
2460 ssl_cert_set_cert_cb(s->cert, cb, arg);
2463 void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher)
2465 #if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_GOST)
2469 uint32_t *pvalid = s->s3->tmp.valid_flags;
2470 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
2471 unsigned long mask_k, mask_a;
2472 #ifndef OPENSSL_NO_EC
2473 int have_ecc_cert, ecdsa_ok;
2476 int pk_nid = 0, md_nid = 0;
2481 #ifndef OPENSSL_NO_DH
2482 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
2487 rsa_enc = pvalid[SSL_PKEY_RSA_ENC] & CERT_PKEY_VALID;
2488 rsa_sign = pvalid[SSL_PKEY_RSA_SIGN] & CERT_PKEY_SIGN;
2489 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_SIGN;
2490 #ifndef OPENSSL_NO_EC
2491 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
2498 "dht=%d re=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2499 dh_tmp, rsa_enc, rsa_sign, dsa_sign, dh_rsa, dh_dsa);
2502 #ifndef OPENSSL_NO_GOST
2503 cpk = &(c->pkeys[SSL_PKEY_GOST12_512]);
2504 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2505 mask_k |= SSL_kGOST;
2506 mask_a |= SSL_aGOST12;
2508 cpk = &(c->pkeys[SSL_PKEY_GOST12_256]);
2509 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2510 mask_k |= SSL_kGOST;
2511 mask_a |= SSL_aGOST12;
2513 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2514 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2515 mask_k |= SSL_kGOST;
2516 mask_a |= SSL_aGOST01;
2526 if (rsa_enc || rsa_sign) {
2534 mask_a |= SSL_aNULL;
2537 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2538 * depending on the key usage extension.
2540 #ifndef OPENSSL_NO_EC
2541 if (have_ecc_cert) {
2543 cpk = &c->pkeys[SSL_PKEY_ECC];
2545 ex_kusage = X509_get_key_usage(x);
2546 ecdh_ok = ex_kusage & X509v3_KU_KEY_AGREEMENT;
2547 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
2548 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
2550 OBJ_find_sigid_algs(X509_get_signature_nid(x), &md_nid, &pk_nid);
2553 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) {
2554 mask_k |= SSL_kECDHr;
2555 mask_a |= SSL_aECDH;
2558 if (pk_nid == NID_X9_62_id_ecPublicKey) {
2559 mask_k |= SSL_kECDHe;
2560 mask_a |= SSL_aECDH;
2564 mask_a |= SSL_aECDSA;
2569 #ifndef OPENSSL_NO_EC
2570 mask_k |= SSL_kECDHE;
2573 #ifndef OPENSSL_NO_PSK
2576 if (mask_k & SSL_kRSA)
2577 mask_k |= SSL_kRSAPSK;
2578 if (mask_k & SSL_kDHE)
2579 mask_k |= SSL_kDHEPSK;
2580 if (mask_k & SSL_kECDHE)
2581 mask_k |= SSL_kECDHEPSK;
2584 s->s3->tmp.mask_k = mask_k;
2585 s->s3->tmp.mask_a = mask_a;
2588 #ifndef OPENSSL_NO_EC
2590 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2592 unsigned long alg_k, alg_a;
2593 int md_nid = 0, pk_nid = 0;
2594 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2595 uint32_t ex_kusage = X509_get_key_usage(x);
2597 alg_k = cs->algorithm_mkey;
2598 alg_a = cs->algorithm_auth;
2600 OBJ_find_sigid_algs(X509_get_signature_nid(x), &md_nid, &pk_nid);
2602 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) {
2603 /* key usage, if present, must allow key agreement */
2604 if (!(ex_kusage & X509v3_KU_KEY_AGREEMENT)) {
2605 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2606 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2609 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION) {
2610 /* signature alg must be ECDSA */
2611 if (pk_nid != NID_X9_62_id_ecPublicKey) {
2612 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2613 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2617 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION) {
2618 /* signature alg must be RSA */
2620 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) {
2621 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2622 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2627 if (alg_a & SSL_aECDSA) {
2628 /* key usage, if present, must allow signing */
2629 if (!(ex_kusage & X509v3_KU_DIGITAL_SIGNATURE)) {
2630 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2631 SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2636 return 1; /* all checks are ok */
2641 static int ssl_get_server_cert_index(const SSL *s)
2644 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2645 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2646 idx = SSL_PKEY_RSA_SIGN;
2647 if (idx == SSL_PKEY_GOST_EC) {
2648 if (s->cert->pkeys[SSL_PKEY_GOST12_512].x509)
2649 idx = SSL_PKEY_GOST12_512;
2650 else if (s->cert->pkeys[SSL_PKEY_GOST12_256].x509)
2651 idx = SSL_PKEY_GOST12_256;
2652 else if (s->cert->pkeys[SSL_PKEY_GOST01].x509)
2653 idx = SSL_PKEY_GOST01;
2658 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR);
2662 CERT_PKEY *ssl_get_server_send_pkey(SSL *s)
2668 if (!s->s3 || !s->s3->tmp.new_cipher)
2670 ssl_set_masks(s, s->s3->tmp.new_cipher);
2672 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2674 * Broken protocol test: return last used certificate: which may mismatch
2677 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2681 i = ssl_get_server_cert_index(s);
2683 /* This may or may not be an error. */
2688 return &c->pkeys[i];
2691 EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher,
2694 unsigned long alg_a;
2698 alg_a = cipher->algorithm_auth;
2701 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2703 * Broken protocol test: use last key: which may mismatch the one
2706 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2707 idx = c->key - c->pkeys;
2711 if ((alg_a & SSL_aDSS) &&
2712 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2713 idx = SSL_PKEY_DSA_SIGN;
2714 else if (alg_a & SSL_aRSA) {
2715 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2716 idx = SSL_PKEY_RSA_SIGN;
2717 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2718 idx = SSL_PKEY_RSA_ENC;
2719 } else if ((alg_a & SSL_aECDSA) &&
2720 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2723 SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR);
2727 *pmd = s->s3->tmp.md[idx];
2728 return c->pkeys[idx].privatekey;
2731 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2732 size_t *serverinfo_length)
2736 *serverinfo_length = 0;
2739 i = ssl_get_server_cert_index(s);
2743 if (c->pkeys[i].serverinfo == NULL)
2746 *serverinfo = c->pkeys[i].serverinfo;
2747 *serverinfo_length = c->pkeys[i].serverinfo_length;
2751 void ssl_update_cache(SSL *s, int mode)
2756 * If the session_id_length is 0, we are not supposed to cache it, and it
2757 * would be rather hard to do anyway :-)
2759 if (s->session->session_id_length == 0)
2762 i = s->session_ctx->session_cache_mode;
2763 if ((i & mode) && (!s->hit)
2764 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2765 || SSL_CTX_add_session(s->session_ctx, s->session))
2766 && (s->session_ctx->new_session_cb != NULL)) {
2767 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION);
2768 if (!s->session_ctx->new_session_cb(s, s->session))
2769 SSL_SESSION_free(s->session);
2772 /* auto flush every 255 connections */
2773 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
2774 if ((((mode & SSL_SESS_CACHE_CLIENT)
2775 ? s->session_ctx->stats.sess_connect_good
2776 : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) {
2777 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
2782 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2787 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2792 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2796 if (s->method != meth) {
2797 const SSL_METHOD *sm = s->method;
2798 int (*hf)(SSL *) = s->handshake_func;
2800 if (sm->version == meth->version)
2805 ret = s->method->ssl_new(s);
2808 if (hf == sm->ssl_connect)
2809 s->handshake_func = meth->ssl_connect;
2810 else if (hf == sm->ssl_accept)
2811 s->handshake_func = meth->ssl_accept;
2816 int SSL_get_error(const SSL *s, int i)
2823 return (SSL_ERROR_NONE);
2826 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2827 * where we do encode the error
2829 if ((l = ERR_peek_error()) != 0) {
2830 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2831 return (SSL_ERROR_SYSCALL);
2833 return (SSL_ERROR_SSL);
2836 if ((i < 0) && SSL_want_read(s)) {
2837 bio = SSL_get_rbio(s);
2838 if (BIO_should_read(bio))
2839 return (SSL_ERROR_WANT_READ);
2840 else if (BIO_should_write(bio))
2842 * This one doesn't make too much sense ... We never try to write
2843 * to the rbio, and an application program where rbio and wbio
2844 * are separate couldn't even know what it should wait for.
2845 * However if we ever set s->rwstate incorrectly (so that we have
2846 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2847 * wbio *are* the same, this test works around that bug; so it
2848 * might be safer to keep it.
2850 return (SSL_ERROR_WANT_WRITE);
2851 else if (BIO_should_io_special(bio)) {
2852 reason = BIO_get_retry_reason(bio);
2853 if (reason == BIO_RR_CONNECT)
2854 return (SSL_ERROR_WANT_CONNECT);
2855 else if (reason == BIO_RR_ACCEPT)
2856 return (SSL_ERROR_WANT_ACCEPT);
2858 return (SSL_ERROR_SYSCALL); /* unknown */
2862 if ((i < 0) && SSL_want_write(s)) {
2863 bio = SSL_get_wbio(s);
2864 if (BIO_should_write(bio))
2865 return (SSL_ERROR_WANT_WRITE);
2866 else if (BIO_should_read(bio))
2868 * See above (SSL_want_read(s) with BIO_should_write(bio))
2870 return (SSL_ERROR_WANT_READ);
2871 else if (BIO_should_io_special(bio)) {
2872 reason = BIO_get_retry_reason(bio);
2873 if (reason == BIO_RR_CONNECT)
2874 return (SSL_ERROR_WANT_CONNECT);
2875 else if (reason == BIO_RR_ACCEPT)
2876 return (SSL_ERROR_WANT_ACCEPT);
2878 return (SSL_ERROR_SYSCALL);
2881 if ((i < 0) && SSL_want_x509_lookup(s)) {
2882 return (SSL_ERROR_WANT_X509_LOOKUP);
2884 if ((i < 0) && SSL_want_async(s)) {
2885 return SSL_ERROR_WANT_ASYNC;
2889 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2890 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2891 return (SSL_ERROR_ZERO_RETURN);
2893 return (SSL_ERROR_SYSCALL);
2896 static int ssl_do_handshake_intern(void *vargs)
2898 struct ssl_async_args *args;
2901 args = (struct ssl_async_args *)vargs;
2904 return s->handshake_func(s);
2907 int SSL_do_handshake(SSL *s)
2911 if (s->handshake_func == NULL) {
2912 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
2916 s->method->ssl_renegotiate_check(s);
2918 if (SSL_in_init(s) || SSL_in_before(s)) {
2919 if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2920 struct ssl_async_args args;
2924 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
2926 ret = s->handshake_func(s);
2932 void SSL_set_accept_state(SSL *s)
2936 ossl_statem_clear(s);
2937 s->handshake_func = s->method->ssl_accept;
2941 void SSL_set_connect_state(SSL *s)
2945 ossl_statem_clear(s);
2946 s->handshake_func = s->method->ssl_connect;
2950 int ssl_undefined_function(SSL *s)
2952 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2956 int ssl_undefined_void_function(void)
2958 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
2959 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2963 int ssl_undefined_const_function(const SSL *s)
2968 SSL_METHOD *ssl_bad_method(int ver)
2970 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2974 const char *SSL_get_version(const SSL *s)
2976 if (s->version == TLS1_2_VERSION)
2978 else if (s->version == TLS1_1_VERSION)
2980 else if (s->version == TLS1_VERSION)
2982 else if (s->version == SSL3_VERSION)
2984 else if (s->version == DTLS1_BAD_VER)
2985 return ("DTLSv0.9");
2986 else if (s->version == DTLS1_VERSION)
2988 else if (s->version == DTLS1_2_VERSION)
2989 return ("DTLSv1.2");
2994 SSL *SSL_dup(SSL *s)
2996 STACK_OF(X509_NAME) *sk;
3001 /* If we're not quiescent, just up_ref! */
3002 if (!SSL_in_init(s) || !SSL_in_before(s)) {
3003 CRYPTO_add(&s->references, 1, CRYPTO_LOCK_SSL);
3008 * Otherwise, copy configuration state, and session if set.
3010 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
3013 if (s->session != NULL) {
3015 * Arranges to share the same session via up_ref. This "copies"
3016 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3018 if (!SSL_copy_session_id(ret, s))
3022 * No session has been established yet, so we have to expect that
3023 * s->cert or ret->cert will be changed later -- they should not both
3024 * point to the same object, and thus we can't use
3025 * SSL_copy_session_id.
3027 if (!SSL_set_ssl_method(ret, s->method))
3030 if (s->cert != NULL) {
3031 ssl_cert_free(ret->cert);
3032 ret->cert = ssl_cert_dup(s->cert);
3033 if (ret->cert == NULL)
3037 if (!SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length))
3041 ssl_dane_dup(ret, s);
3042 ret->version = s->version;
3043 ret->options = s->options;
3044 ret->mode = s->mode;
3045 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
3046 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
3047 ret->msg_callback = s->msg_callback;
3048 ret->msg_callback_arg = s->msg_callback_arg;
3049 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
3050 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
3051 ret->generate_session_id = s->generate_session_id;
3053 SSL_set_info_callback(ret, SSL_get_info_callback(s));
3055 ret->debug = s->debug;
3057 /* copy app data, a little dangerous perhaps */
3058 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
3061 /* setup rbio, and wbio */
3062 if (s->rbio != NULL) {
3063 if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
3066 if (s->wbio != NULL) {
3067 if (s->wbio != s->rbio) {
3068 if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
3071 ret->wbio = ret->rbio;
3074 ret->server = s->server;
3075 if (s->handshake_func) {
3077 SSL_set_accept_state(ret);
3079 SSL_set_connect_state(ret);
3081 ret->shutdown = s->shutdown;
3084 ret->default_passwd_callback = s->default_passwd_callback;
3085 ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata;
3087 X509_VERIFY_PARAM_inherit(ret->param, s->param);
3089 /* dup the cipher_list and cipher_list_by_id stacks */
3090 if (s->cipher_list != NULL) {
3091 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
3094 if (s->cipher_list_by_id != NULL)
3095 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
3099 /* Dup the client_CA list */
3100 if (s->client_CA != NULL) {
3101 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL)
3103 ret->client_CA = sk;
3104 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
3105 xn = sk_X509_NAME_value(sk, i);
3106 if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) {
3119 void ssl_clear_cipher_ctx(SSL *s)
3121 if (s->enc_read_ctx != NULL) {
3122 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
3123 OPENSSL_free(s->enc_read_ctx);
3124 s->enc_read_ctx = NULL;
3126 if (s->enc_write_ctx != NULL) {
3127 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
3128 OPENSSL_free(s->enc_write_ctx);
3129 s->enc_write_ctx = NULL;
3131 #ifndef OPENSSL_NO_COMP
3132 COMP_CTX_free(s->expand);
3134 COMP_CTX_free(s->compress);
3139 X509 *SSL_get_certificate(const SSL *s)
3141 if (s->cert != NULL)
3142 return (s->cert->key->x509);
3147 EVP_PKEY *SSL_get_privatekey(const SSL *s)
3149 if (s->cert != NULL)
3150 return (s->cert->key->privatekey);
3155 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
3157 if (ctx->cert != NULL)
3158 return ctx->cert->key->x509;
3163 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
3165 if (ctx->cert != NULL)
3166 return ctx->cert->key->privatekey;
3171 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
3173 if ((s->session != NULL) && (s->session->cipher != NULL))
3174 return (s->session->cipher);
3178 const COMP_METHOD *SSL_get_current_compression(SSL *s)
3180 #ifndef OPENSSL_NO_COMP
3181 return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
3187 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
3189 #ifndef OPENSSL_NO_COMP
3190 return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
3196 int ssl_init_wbio_buffer(SSL *s, int push)
3200 if (s->bbio == NULL) {
3201 bbio = BIO_new(BIO_f_buffer());
3207 if (s->bbio == s->wbio)
3208 s->wbio = BIO_pop(s->wbio);
3210 (void)BIO_reset(bbio);
3211 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
3212 if (!BIO_set_read_buffer_size(bbio, 1)) {
3213 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
3217 if (s->wbio != bbio)
3218 s->wbio = BIO_push(bbio, s->wbio);
3220 if (s->wbio == bbio)
3221 s->wbio = BIO_pop(bbio);
3226 void ssl_free_wbio_buffer(SSL *s)
3228 /* callers ensure s is never null */
3229 if (s->bbio == NULL)
3232 if (s->bbio == s->wbio) {
3233 /* remove buffering */
3234 s->wbio = BIO_pop(s->wbio);
3235 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
3236 * adding one more preprocessor symbol */
3237 assert(s->wbio != NULL);
3244 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
3246 ctx->quiet_shutdown = mode;
3249 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
3251 return (ctx->quiet_shutdown);
3254 void SSL_set_quiet_shutdown(SSL *s, int mode)
3256 s->quiet_shutdown = mode;
3259 int SSL_get_quiet_shutdown(const SSL *s)
3261 return (s->quiet_shutdown);
3264 void SSL_set_shutdown(SSL *s, int mode)
3269 int SSL_get_shutdown(const SSL *s)
3271 return (s->shutdown);
3274 int SSL_version(const SSL *s)
3276 return (s->version);
3279 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
3284 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
3287 if (ssl->ctx == ctx)
3290 ctx = ssl->initial_ctx;
3291 new_cert = ssl_cert_dup(ctx->cert);
3292 if (new_cert == NULL) {
3295 ssl_cert_free(ssl->cert);
3296 ssl->cert = new_cert;
3299 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3300 * so setter APIs must prevent invalid lengths from entering the system.
3302 OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx));
3305 * If the session ID context matches that of the parent SSL_CTX,
3306 * inherit it from the new SSL_CTX as well. If however the context does
3307 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3308 * leave it unchanged.
3310 if ((ssl->ctx != NULL) &&
3311 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
3312 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
3313 ssl->sid_ctx_length = ctx->sid_ctx_length;
3314 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
3317 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
3318 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3324 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3326 return (X509_STORE_set_default_paths(ctx->cert_store));
3329 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
3331 X509_LOOKUP *lookup;
3333 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
3336 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
3338 /* Clear any errors if the default directory does not exist */
3344 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
3346 X509_LOOKUP *lookup;
3348 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
3352 X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
3354 /* Clear any errors if the default file does not exist */
3360 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3363 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath));
3366 void SSL_set_info_callback(SSL *ssl,
3367 void (*cb) (const SSL *ssl, int type, int val))
3369 ssl->info_callback = cb;
3373 * One compiler (Diab DCC) doesn't like argument names in returned function
3376 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
3379 return ssl->info_callback;
3382 void SSL_set_verify_result(SSL *ssl, long arg)
3384 ssl->verify_result = arg;
3387 long SSL_get_verify_result(const SSL *ssl)
3389 return (ssl->verify_result);
3392 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
3395 return sizeof(ssl->s3->client_random);
3396 if (outlen > sizeof(ssl->s3->client_random))
3397 outlen = sizeof(ssl->s3->client_random);
3398 memcpy(out, ssl->s3->client_random, outlen);
3402 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
3405 return sizeof(ssl->s3->server_random);
3406 if (outlen > sizeof(ssl->s3->server_random))
3407 outlen = sizeof(ssl->s3->server_random);
3408 memcpy(out, ssl->s3->server_random, outlen);
3412 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
3413 unsigned char *out, size_t outlen)
3415 if (session->master_key_length < 0) {
3416 /* Should never happen */
3420 return session->master_key_length;
3421 if (outlen > (size_t)session->master_key_length)
3422 outlen = session->master_key_length;
3423 memcpy(out, session->master_key, outlen);
3427 int SSL_set_ex_data(SSL *s, int idx, void *arg)
3429 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3432 void *SSL_get_ex_data(const SSL *s, int idx)
3434 return (CRYPTO_get_ex_data(&s->ex_data, idx));
3437 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
3439 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3442 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
3444 return (CRYPTO_get_ex_data(&s->ex_data, idx));
3452 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3454 return (ctx->cert_store);
3457 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
3459 X509_STORE_free(ctx->cert_store);
3460 ctx->cert_store = store;
3463 int SSL_want(const SSL *s)
3465 return (s->rwstate);
3469 * \brief Set the callback for generating temporary DH keys.
3470 * \param ctx the SSL context.
3471 * \param dh the callback
3474 #ifndef OPENSSL_NO_DH
3475 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
3476 DH *(*dh) (SSL *ssl, int is_export,
3479 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3482 void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
3485 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3489 #ifndef OPENSSL_NO_PSK
3490 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3492 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3493 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT,
3494 SSL_R_DATA_LENGTH_TOO_LONG);
3497 OPENSSL_free(ctx->cert->psk_identity_hint);
3498 if (identity_hint != NULL) {
3499 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
3500 if (ctx->cert->psk_identity_hint == NULL)
3503 ctx->cert->psk_identity_hint = NULL;
3507 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3512 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3513 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3516 OPENSSL_free(s->cert->psk_identity_hint);
3517 if (identity_hint != NULL) {
3518 s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
3519 if (s->cert->psk_identity_hint == NULL)
3522 s->cert->psk_identity_hint = NULL;
3526 const char *SSL_get_psk_identity_hint(const SSL *s)
3528 if (s == NULL || s->session == NULL)
3530 return (s->session->psk_identity_hint);
3533 const char *SSL_get_psk_identity(const SSL *s)
3535 if (s == NULL || s->session == NULL)
3537 return (s->session->psk_identity);
3540 void SSL_set_psk_client_callback(SSL *s,
3541 unsigned int (*cb) (SSL *ssl,
3550 s->psk_client_callback = cb;
3553 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3554 unsigned int (*cb) (SSL *ssl,
3563 ctx->psk_client_callback = cb;
3566 void SSL_set_psk_server_callback(SSL *s,
3567 unsigned int (*cb) (SSL *ssl,
3568 const char *identity,
3573 s->psk_server_callback = cb;
3576 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3577 unsigned int (*cb) (SSL *ssl,
3578 const char *identity,
3583 ctx->psk_server_callback = cb;
3587 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
3588 void (*cb) (int write_p, int version,
3589 int content_type, const void *buf,
3590 size_t len, SSL *ssl, void *arg))
3592 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3595 void SSL_set_msg_callback(SSL *ssl,
3596 void (*cb) (int write_p, int version,
3597 int content_type, const void *buf,
3598 size_t len, SSL *ssl, void *arg))
3600 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3603 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3604 int (*cb) (SSL *ssl,
3608 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3609 (void (*)(void))cb);
3612 void SSL_set_not_resumable_session_callback(SSL *ssl,
3613 int (*cb) (SSL *ssl,
3614 int is_forward_secure))
3616 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3617 (void (*)(void))cb);
3621 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3622 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3623 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3627 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
3629 ssl_clear_hash_ctx(hash);
3630 *hash = EVP_MD_CTX_new();
3631 if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) {
3632 EVP_MD_CTX_free(*hash);
3639 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3643 EVP_MD_CTX_free(*hash);
3647 /* Retrieve handshake hashes */
3648 int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen)
3650 EVP_MD_CTX *ctx = NULL;
3651 EVP_MD_CTX *hdgst = s->s3->handshake_dgst;
3652 int ret = EVP_MD_CTX_size(hdgst);
3653 if (ret < 0 || ret > outlen) {
3657 ctx = EVP_MD_CTX_new();
3662 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
3663 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0)
3666 EVP_MD_CTX_free(ctx);
3670 void SSL_set_debug(SSL *s, int debug)
3675 int SSL_cache_hit(SSL *s)
3680 int SSL_is_server(SSL *s)
3685 void SSL_set_security_level(SSL *s, int level)
3687 s->cert->sec_level = level;
3690 int SSL_get_security_level(const SSL *s)
3692 return s->cert->sec_level;
3695 void SSL_set_security_callback(SSL *s,
3696 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3697 int bits, int nid, void *other,
3700 s->cert->sec_cb = cb;
3703 int (*SSL_get_security_callback(const SSL *s)) (SSL *s, SSL_CTX *ctx, int op,
3705 void *other, void *ex) {
3706 return s->cert->sec_cb;
3709 void SSL_set0_security_ex_data(SSL *s, void *ex)
3711 s->cert->sec_ex = ex;
3714 void *SSL_get0_security_ex_data(const SSL *s)
3716 return s->cert->sec_ex;
3719 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
3721 ctx->cert->sec_level = level;
3724 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
3726 return ctx->cert->sec_level;
3729 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
3730 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3731 int bits, int nid, void *other,
3734 ctx->cert->sec_cb = cb;
3737 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (SSL *s,
3743 return ctx->cert->sec_cb;
3746 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
3748 ctx->cert->sec_ex = ex;
3751 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
3753 return ctx->cert->sec_ex;
3758 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
3759 * can return unsigned long, instead of the generic long return value from the
3760 * control interface.
3762 unsigned long SSL_CTX_get_options(const SSL_CTX *ctx)
3764 return ctx->options;
3766 unsigned long SSL_get_options(const SSL* s)
3770 unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op)
3772 return ctx->options |= op;
3774 unsigned long SSL_set_options(SSL *s, unsigned long op)
3776 return s->options |= op;
3778 unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op)
3780 return ctx->options &= ~op;
3782 unsigned long SSL_clear_options(SSL *s, unsigned long op)
3784 return s->options &= ~op;
3787 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);