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);
876 * Default SNI name. This rejects empty names, while set1_host below
877 * accepts them and disables host name checks. To avoid side-effects with
878 * invalid input, set the SNI name first.
880 if (s->tlsext_hostname == NULL) {
881 if (!SSL_set_tlsext_host_name(s, basedomain)) {
882 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
887 /* Primary RFC6125 reference identifier */
888 if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) {
889 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
895 dane->dctx = &s->ctx->dane;
896 dane->trecs = sk_danetls_record_new_null();
898 if (dane->trecs == NULL) {
899 SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE);
905 int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
907 struct dane_st *dane = &s->dane;
909 if (!DANETLS_ENABLED(dane))
913 *mcert = dane->mcert;
915 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
920 int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
921 uint8_t *mtype, unsigned const char **data, size_t *dlen)
923 struct dane_st *dane = &s->dane;
925 if (!DANETLS_ENABLED(dane))
929 *usage = dane->mtlsa->usage;
931 *selector = dane->mtlsa->selector;
933 *mtype = dane->mtlsa->mtype;
935 *data = dane->mtlsa->data;
937 *dlen = dane->mtlsa->dlen;
942 struct dane_st *SSL_get0_dane(SSL *s)
947 int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
948 uint8_t mtype, unsigned char *data, size_t dlen)
950 return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen);
953 int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype, uint8_t ord)
955 return dane_mtype_set(&ctx->dane, md, mtype, ord);
958 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
960 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
963 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
965 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
968 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
973 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
978 void SSL_certs_clear(SSL *s)
980 ssl_cert_clear_certs(s->cert);
983 void SSL_free(SSL *s)
990 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL);
998 fprintf(stderr, "SSL_free, bad reference count\n");
1003 X509_VERIFY_PARAM_free(s->param);
1004 dane_final(&s->dane);
1005 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1007 if (s->bbio != NULL) {
1008 /* If the buffering BIO is in place, pop it off */
1009 if (s->bbio == s->wbio) {
1010 s->wbio = BIO_pop(s->wbio);
1015 BIO_free_all(s->rbio);
1016 if (s->wbio != s->rbio)
1017 BIO_free_all(s->wbio);
1019 BUF_MEM_free(s->init_buf);
1021 /* add extra stuff */
1022 sk_SSL_CIPHER_free(s->cipher_list);
1023 sk_SSL_CIPHER_free(s->cipher_list_by_id);
1025 /* Make the next call work :-) */
1026 if (s->session != NULL) {
1027 ssl_clear_bad_session(s);
1028 SSL_SESSION_free(s->session);
1033 ssl_cert_free(s->cert);
1034 /* Free up if allocated */
1036 OPENSSL_free(s->tlsext_hostname);
1037 SSL_CTX_free(s->initial_ctx);
1038 #ifndef OPENSSL_NO_EC
1039 OPENSSL_free(s->tlsext_ecpointformatlist);
1040 OPENSSL_free(s->tlsext_ellipticcurvelist);
1041 #endif /* OPENSSL_NO_EC */
1042 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);
1043 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
1044 OPENSSL_free(s->tlsext_ocsp_resp);
1045 OPENSSL_free(s->alpn_client_proto_list);
1047 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);
1049 if (s->method != NULL)
1050 s->method->ssl_free(s);
1052 RECORD_LAYER_release(&s->rlayer);
1054 SSL_CTX_free(s->ctx);
1056 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1057 OPENSSL_free(s->next_proto_negotiated);
1060 #ifndef OPENSSL_NO_SRTP
1061 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
1067 void SSL_set_rbio(SSL *s, BIO *rbio)
1069 if (s->rbio != rbio)
1070 BIO_free_all(s->rbio);
1074 void SSL_set_wbio(SSL *s, BIO *wbio)
1077 * If the output buffering BIO is still in place, remove it
1079 if (s->bbio != NULL) {
1080 if (s->wbio == s->bbio) {
1081 s->wbio = s->wbio->next_bio;
1082 s->bbio->next_bio = NULL;
1085 if (s->wbio != wbio && s->rbio != s->wbio)
1086 BIO_free_all(s->wbio);
1090 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1092 SSL_set_wbio(s, wbio);
1093 SSL_set_rbio(s, rbio);
1096 BIO *SSL_get_rbio(const SSL *s)
1101 BIO *SSL_get_wbio(const SSL *s)
1106 int SSL_get_fd(const SSL *s)
1108 return (SSL_get_rfd(s));
1111 int SSL_get_rfd(const SSL *s)
1116 b = SSL_get_rbio(s);
1117 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1119 BIO_get_fd(r, &ret);
1123 int SSL_get_wfd(const SSL *s)
1128 b = SSL_get_wbio(s);
1129 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1131 BIO_get_fd(r, &ret);
1135 #ifndef OPENSSL_NO_SOCK
1136 int SSL_set_fd(SSL *s, int fd)
1141 bio = BIO_new(BIO_s_socket());
1144 SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
1147 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1148 SSL_set_bio(s, bio, bio);
1154 int SSL_set_wfd(SSL *s, int fd)
1159 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
1160 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) {
1161 bio = BIO_new(BIO_s_socket());
1164 SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
1167 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1168 SSL_set_bio(s, SSL_get_rbio(s), bio);
1170 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s));
1176 int SSL_set_rfd(SSL *s, int fd)
1181 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
1182 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) {
1183 bio = BIO_new(BIO_s_socket());
1186 SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
1189 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1190 SSL_set_bio(s, bio, SSL_get_wbio(s));
1192 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s));
1199 /* return length of latest Finished message we sent, copy to 'buf' */
1200 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
1204 if (s->s3 != NULL) {
1205 ret = s->s3->tmp.finish_md_len;
1208 memcpy(buf, s->s3->tmp.finish_md, count);
1213 /* return length of latest Finished message we expected, copy to 'buf' */
1214 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
1218 if (s->s3 != NULL) {
1219 ret = s->s3->tmp.peer_finish_md_len;
1222 memcpy(buf, s->s3->tmp.peer_finish_md, count);
1227 int SSL_get_verify_mode(const SSL *s)
1229 return (s->verify_mode);
1232 int SSL_get_verify_depth(const SSL *s)
1234 return X509_VERIFY_PARAM_get_depth(s->param);
1237 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
1238 return (s->verify_callback);
1241 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
1243 return (ctx->verify_mode);
1246 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
1248 return X509_VERIFY_PARAM_get_depth(ctx->param);
1251 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
1252 return (ctx->default_verify_callback);
1255 void SSL_set_verify(SSL *s, int mode,
1256 int (*callback) (int ok, X509_STORE_CTX *ctx))
1258 s->verify_mode = mode;
1259 if (callback != NULL)
1260 s->verify_callback = callback;
1263 void SSL_set_verify_depth(SSL *s, int depth)
1265 X509_VERIFY_PARAM_set_depth(s->param, depth);
1268 void SSL_set_read_ahead(SSL *s, int yes)
1270 RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
1273 int SSL_get_read_ahead(const SSL *s)
1275 return RECORD_LAYER_get_read_ahead(&s->rlayer);
1278 int SSL_pending(const SSL *s)
1281 * SSL_pending cannot work properly if read-ahead is enabled
1282 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1283 * impossible to fix since SSL_pending cannot report errors that may be
1284 * observed while scanning the new data. (Note that SSL_pending() is
1285 * often used as a boolean value, so we'd better not return -1.)
1287 return (s->method->ssl_pending(s));
1290 X509 *SSL_get_peer_certificate(const SSL *s)
1294 if ((s == NULL) || (s->session == NULL))
1297 r = s->session->peer;
1307 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
1311 if ((s == NULL) || (s->session == NULL))
1314 r = s->session->peer_chain;
1317 * If we are a client, cert_chain includes the peer's own certificate; if
1318 * we are a server, it does not.
1325 * Now in theory, since the calling process own 't' it should be safe to
1326 * modify. We need to be able to read f without being hassled
1328 int SSL_copy_session_id(SSL *t, const SSL *f)
1330 /* Do we need to to SSL locking? */
1331 if (!SSL_set_session(t, SSL_get_session(f))) {
1336 * what if we are setup for one protocol version but want to talk another
1338 if (t->method != f->method) {
1339 t->method->ssl_free(t);
1340 t->method = f->method;
1341 if (t->method->ssl_new(t) == 0)
1345 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT);
1346 ssl_cert_free(t->cert);
1348 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) {
1355 /* Fix this so it checks all the valid key/cert options */
1356 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
1358 if ((ctx == NULL) ||
1359 (ctx->cert->key->x509 == NULL)) {
1360 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
1361 SSL_R_NO_CERTIFICATE_ASSIGNED);
1364 if (ctx->cert->key->privatekey == NULL) {
1365 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
1366 SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1369 return (X509_check_private_key
1370 (ctx->cert->key->x509, ctx->cert->key->privatekey));
1373 /* Fix this function so that it takes an optional type parameter */
1374 int SSL_check_private_key(const SSL *ssl)
1377 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
1380 if (ssl->cert->key->x509 == NULL) {
1381 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
1384 if (ssl->cert->key->privatekey == NULL) {
1385 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1388 return (X509_check_private_key(ssl->cert->key->x509,
1389 ssl->cert->key->privatekey));
1392 int SSL_waiting_for_async(SSL *s)
1400 int SSL_get_async_wait_fd(SSL *s)
1405 return ASYNC_get_wait_fd(s->job);
1408 int SSL_accept(SSL *s)
1410 if (s->handshake_func == 0) {
1411 /* Not properly initialized yet */
1412 SSL_set_accept_state(s);
1415 return SSL_do_handshake(s);
1418 int SSL_connect(SSL *s)
1420 if (s->handshake_func == 0) {
1421 /* Not properly initialized yet */
1422 SSL_set_connect_state(s);
1425 return SSL_do_handshake(s);
1428 long SSL_get_default_timeout(const SSL *s)
1430 return (s->method->get_timeout());
1433 static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
1434 int (*func)(void *)) {
1436 switch(ASYNC_start_job(&s->job, &ret, func, args,
1437 sizeof(struct ssl_async_args))) {
1439 s->rwstate = SSL_NOTHING;
1440 SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC);
1443 s->rwstate = SSL_ASYNC_PAUSED;
1449 s->rwstate = SSL_NOTHING;
1450 SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR);
1451 /* Shouldn't happen */
1456 static int ssl_io_intern(void *vargs)
1458 struct ssl_async_args *args;
1463 args = (struct ssl_async_args *)vargs;
1467 if (args->type == 1)
1468 return args->f.func1(s, buf, num);
1470 return args->f.func2(s, buf, num);
1473 int SSL_read(SSL *s, void *buf, int num)
1475 if (s->handshake_func == 0) {
1476 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
1480 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1481 s->rwstate = SSL_NOTHING;
1485 if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1486 struct ssl_async_args args;
1492 args.f.func1 = s->method->ssl_read;
1494 return ssl_start_async_job(s, &args, ssl_io_intern);
1496 return s->method->ssl_read(s, buf, num);
1500 int SSL_peek(SSL *s, void *buf, int num)
1502 if (s->handshake_func == 0) {
1503 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
1507 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1510 if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1511 struct ssl_async_args args;
1517 args.f.func1 = s->method->ssl_peek;
1519 return ssl_start_async_job(s, &args, ssl_io_intern);
1521 return s->method->ssl_peek(s, buf, num);
1525 int SSL_write(SSL *s, const void *buf, int num)
1527 if (s->handshake_func == 0) {
1528 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
1532 if (s->shutdown & SSL_SENT_SHUTDOWN) {
1533 s->rwstate = SSL_NOTHING;
1534 SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN);
1538 if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1539 struct ssl_async_args args;
1542 args.buf = (void *)buf;
1545 args.f.func2 = s->method->ssl_write;
1547 return ssl_start_async_job(s, &args, ssl_io_intern);
1549 return s->method->ssl_write(s, buf, num);
1553 int SSL_shutdown(SSL *s)
1556 * Note that this function behaves differently from what one might
1557 * expect. Return values are 0 for no success (yet), 1 for success; but
1558 * calling it once is usually not enough, even if blocking I/O is used
1559 * (see ssl3_shutdown).
1562 if (s->handshake_func == 0) {
1563 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1567 return s->method->ssl_shutdown(s);
1570 int SSL_renegotiate(SSL *s)
1572 if (s->renegotiate == 0)
1577 return (s->method->ssl_renegotiate(s));
1580 int SSL_renegotiate_abbreviated(SSL *s)
1582 if (s->renegotiate == 0)
1587 return (s->method->ssl_renegotiate(s));
1590 int SSL_renegotiate_pending(SSL *s)
1593 * becomes true when negotiation is requested; false again once a
1594 * handshake has finished
1596 return (s->renegotiate != 0);
1599 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
1604 case SSL_CTRL_GET_READ_AHEAD:
1605 return (RECORD_LAYER_get_read_ahead(&s->rlayer));
1606 case SSL_CTRL_SET_READ_AHEAD:
1607 l = RECORD_LAYER_get_read_ahead(&s->rlayer);
1608 RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
1611 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1612 s->msg_callback_arg = parg;
1616 return (s->mode |= larg);
1617 case SSL_CTRL_CLEAR_MODE:
1618 return (s->mode &= ~larg);
1619 case SSL_CTRL_GET_MAX_CERT_LIST:
1620 return (s->max_cert_list);
1621 case SSL_CTRL_SET_MAX_CERT_LIST:
1622 l = s->max_cert_list;
1623 s->max_cert_list = larg;
1625 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1626 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1628 s->max_send_fragment = larg;
1630 case SSL_CTRL_GET_RI_SUPPORT:
1632 return s->s3->send_connection_binding;
1635 case SSL_CTRL_CERT_FLAGS:
1636 return (s->cert->cert_flags |= larg);
1637 case SSL_CTRL_CLEAR_CERT_FLAGS:
1638 return (s->cert->cert_flags &= ~larg);
1640 case SSL_CTRL_GET_RAW_CIPHERLIST:
1642 if (s->s3->tmp.ciphers_raw == NULL)
1644 *(unsigned char **)parg = s->s3->tmp.ciphers_raw;
1645 return (int)s->s3->tmp.ciphers_rawlen;
1647 return TLS_CIPHER_LEN;
1649 case SSL_CTRL_GET_EXTMS_SUPPORT:
1650 if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s))
1652 if (s->session->flags & SSL_SESS_FLAG_EXTMS)
1656 case SSL_CTRL_SET_MIN_PROTO_VERSION:
1657 return ssl_set_version_bound(s->ctx->method->version, (int)larg,
1658 &s->min_proto_version);
1659 case SSL_CTRL_SET_MAX_PROTO_VERSION:
1660 return ssl_set_version_bound(s->ctx->method->version, (int)larg,
1661 &s->max_proto_version);
1663 return (s->method->ssl_ctrl(s, cmd, larg, parg));
1667 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
1670 case SSL_CTRL_SET_MSG_CALLBACK:
1671 s->msg_callback = (void (*)
1672 (int write_p, int version, int content_type,
1673 const void *buf, size_t len, SSL *ssl,
1678 return (s->method->ssl_callback_ctrl(s, cmd, fp));
1682 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1684 return ctx->sessions;
1687 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
1690 /* For some cases with ctx == NULL perform syntax checks */
1693 #ifndef OPENSSL_NO_EC
1694 case SSL_CTRL_SET_CURVES_LIST:
1695 return tls1_set_curves_list(NULL, NULL, parg);
1697 case SSL_CTRL_SET_SIGALGS_LIST:
1698 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1699 return tls1_set_sigalgs_list(NULL, parg, 0);
1706 case SSL_CTRL_GET_READ_AHEAD:
1707 return (ctx->read_ahead);
1708 case SSL_CTRL_SET_READ_AHEAD:
1709 l = ctx->read_ahead;
1710 ctx->read_ahead = larg;
1713 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1714 ctx->msg_callback_arg = parg;
1717 case SSL_CTRL_GET_MAX_CERT_LIST:
1718 return (ctx->max_cert_list);
1719 case SSL_CTRL_SET_MAX_CERT_LIST:
1720 l = ctx->max_cert_list;
1721 ctx->max_cert_list = larg;
1724 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1725 l = ctx->session_cache_size;
1726 ctx->session_cache_size = larg;
1728 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1729 return (ctx->session_cache_size);
1730 case SSL_CTRL_SET_SESS_CACHE_MODE:
1731 l = ctx->session_cache_mode;
1732 ctx->session_cache_mode = larg;
1734 case SSL_CTRL_GET_SESS_CACHE_MODE:
1735 return (ctx->session_cache_mode);
1737 case SSL_CTRL_SESS_NUMBER:
1738 return (lh_SSL_SESSION_num_items(ctx->sessions));
1739 case SSL_CTRL_SESS_CONNECT:
1740 return (ctx->stats.sess_connect);
1741 case SSL_CTRL_SESS_CONNECT_GOOD:
1742 return (ctx->stats.sess_connect_good);
1743 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1744 return (ctx->stats.sess_connect_renegotiate);
1745 case SSL_CTRL_SESS_ACCEPT:
1746 return (ctx->stats.sess_accept);
1747 case SSL_CTRL_SESS_ACCEPT_GOOD:
1748 return (ctx->stats.sess_accept_good);
1749 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1750 return (ctx->stats.sess_accept_renegotiate);
1751 case SSL_CTRL_SESS_HIT:
1752 return (ctx->stats.sess_hit);
1753 case SSL_CTRL_SESS_CB_HIT:
1754 return (ctx->stats.sess_cb_hit);
1755 case SSL_CTRL_SESS_MISSES:
1756 return (ctx->stats.sess_miss);
1757 case SSL_CTRL_SESS_TIMEOUTS:
1758 return (ctx->stats.sess_timeout);
1759 case SSL_CTRL_SESS_CACHE_FULL:
1760 return (ctx->stats.sess_cache_full);
1762 return (ctx->mode |= larg);
1763 case SSL_CTRL_CLEAR_MODE:
1764 return (ctx->mode &= ~larg);
1765 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1766 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1768 ctx->max_send_fragment = larg;
1770 case SSL_CTRL_CERT_FLAGS:
1771 return (ctx->cert->cert_flags |= larg);
1772 case SSL_CTRL_CLEAR_CERT_FLAGS:
1773 return (ctx->cert->cert_flags &= ~larg);
1774 case SSL_CTRL_SET_MIN_PROTO_VERSION:
1775 return ssl_set_version_bound(ctx->method->version, (int)larg,
1776 &ctx->min_proto_version);
1777 case SSL_CTRL_SET_MAX_PROTO_VERSION:
1778 return ssl_set_version_bound(ctx->method->version, (int)larg,
1779 &ctx->max_proto_version);
1781 return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg));
1785 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
1788 case SSL_CTRL_SET_MSG_CALLBACK:
1789 ctx->msg_callback = (void (*)
1790 (int write_p, int version, int content_type,
1791 const void *buf, size_t len, SSL *ssl,
1796 return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp));
1800 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1809 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1810 const SSL_CIPHER *const *bp)
1812 if ((*ap)->id > (*bp)->id)
1814 if ((*ap)->id < (*bp)->id)
1819 /** return a STACK of the ciphers available for the SSL and in order of
1821 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1824 if (s->cipher_list != NULL) {
1825 return (s->cipher_list);
1826 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
1827 return (s->ctx->cipher_list);
1833 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
1835 if ((s == NULL) || (s->session == NULL) || !s->server)
1837 return s->session->ciphers;
1840 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
1842 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
1844 ciphers = SSL_get_ciphers(s);
1847 ssl_set_client_disabled(s);
1848 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
1849 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
1850 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) {
1852 sk = sk_SSL_CIPHER_new_null();
1855 if (!sk_SSL_CIPHER_push(sk, c)) {
1856 sk_SSL_CIPHER_free(sk);
1864 /** return a STACK of the ciphers available for the SSL and in order of
1866 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1869 if (s->cipher_list_by_id != NULL) {
1870 return (s->cipher_list_by_id);
1871 } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
1872 return (s->ctx->cipher_list_by_id);
1878 /** The old interface to get the same thing as SSL_get_ciphers() */
1879 const char *SSL_get_cipher_list(const SSL *s, int n)
1881 const SSL_CIPHER *c;
1882 STACK_OF(SSL_CIPHER) *sk;
1886 sk = SSL_get_ciphers(s);
1887 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1889 c = sk_SSL_CIPHER_value(sk, n);
1895 /** specify the ciphers to be used by default by the SSL_CTX */
1896 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1898 STACK_OF(SSL_CIPHER) *sk;
1900 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list,
1901 &ctx->cipher_list_by_id, str, ctx->cert);
1903 * ssl_create_cipher_list may return an empty stack if it was unable to
1904 * find a cipher matching the given rule string (for example if the rule
1905 * string specifies a cipher which has been disabled). This is not an
1906 * error as far as ssl_create_cipher_list is concerned, and hence
1907 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
1911 else if (sk_SSL_CIPHER_num(sk) == 0) {
1912 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1918 /** specify the ciphers to be used by the SSL */
1919 int SSL_set_cipher_list(SSL *s, const char *str)
1921 STACK_OF(SSL_CIPHER) *sk;
1923 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list,
1924 &s->cipher_list_by_id, str, s->cert);
1925 /* see comment in SSL_CTX_set_cipher_list */
1928 else if (sk_SSL_CIPHER_num(sk) == 0) {
1929 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1935 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len)
1938 STACK_OF(SSL_CIPHER) *sk;
1939 const SSL_CIPHER *c;
1942 if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2))
1946 sk = s->session->ciphers;
1948 if (sk_SSL_CIPHER_num(sk) == 0)
1951 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
1954 c = sk_SSL_CIPHER_value(sk, i);
1955 n = strlen(c->name);
1971 /** return a servername extension value if provided in Client Hello, or NULL.
1972 * So far, only host_name types are defined (RFC 3546).
1975 const char *SSL_get_servername(const SSL *s, const int type)
1977 if (type != TLSEXT_NAMETYPE_host_name)
1980 return s->session && !s->tlsext_hostname ?
1981 s->session->tlsext_hostname : s->tlsext_hostname;
1984 int SSL_get_servername_type(const SSL *s)
1987 && (!s->tlsext_hostname ? s->session->
1988 tlsext_hostname : s->tlsext_hostname))
1989 return TLSEXT_NAMETYPE_host_name;
1994 * SSL_select_next_proto implements the standard protocol selection. It is
1995 * expected that this function is called from the callback set by
1996 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
1997 * vector of 8-bit, length prefixed byte strings. The length byte itself is
1998 * not included in the length. A byte string of length 0 is invalid. No byte
1999 * string may be truncated. The current, but experimental algorithm for
2000 * selecting the protocol is: 1) If the server doesn't support NPN then this
2001 * is indicated to the callback. In this case, the client application has to
2002 * abort the connection or have a default application level protocol. 2) If
2003 * the server supports NPN, but advertises an empty list then the client
2004 * selects the first protcol in its list, but indicates via the API that this
2005 * fallback case was enacted. 3) Otherwise, the client finds the first
2006 * protocol in the server's list that it supports and selects this protocol.
2007 * This is because it's assumed that the server has better information about
2008 * which protocol a client should use. 4) If the client doesn't support any
2009 * of the server's advertised protocols, then this is treated the same as
2010 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2011 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2013 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
2014 const unsigned char *server,
2015 unsigned int server_len,
2016 const unsigned char *client,
2017 unsigned int client_len)
2020 const unsigned char *result;
2021 int status = OPENSSL_NPN_UNSUPPORTED;
2024 * For each protocol in server preference order, see if we support it.
2026 for (i = 0; i < server_len;) {
2027 for (j = 0; j < client_len;) {
2028 if (server[i] == client[j] &&
2029 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
2030 /* We found a match */
2031 result = &server[i];
2032 status = OPENSSL_NPN_NEGOTIATED;
2042 /* There's no overlap between our protocols and the server's list. */
2044 status = OPENSSL_NPN_NO_OVERLAP;
2047 *out = (unsigned char *)result + 1;
2048 *outlen = result[0];
2052 #ifndef OPENSSL_NO_NEXTPROTONEG
2054 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2055 * client's requested protocol for this connection and returns 0. If the
2056 * client didn't request any protocol, then *data is set to NULL. Note that
2057 * the client can request any protocol it chooses. The value returned from
2058 * this function need not be a member of the list of supported protocols
2059 * provided by the callback.
2061 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
2064 *data = s->next_proto_negotiated;
2068 *len = s->next_proto_negotiated_len;
2073 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
2074 * a TLS server needs a list of supported protocols for Next Protocol
2075 * Negotiation. The returned list must be in wire format. The list is
2076 * returned by setting |out| to point to it and |outlen| to its length. This
2077 * memory will not be modified, but one should assume that the SSL* keeps a
2078 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2079 * wishes to advertise. Otherwise, no such extension will be included in the
2082 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx,
2083 int (*cb) (SSL *ssl,
2086 unsigned int *outlen,
2087 void *arg), void *arg)
2089 ctx->next_protos_advertised_cb = cb;
2090 ctx->next_protos_advertised_cb_arg = arg;
2094 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2095 * client needs to select a protocol from the server's provided list. |out|
2096 * must be set to point to the selected protocol (which may be within |in|).
2097 * The length of the protocol name must be written into |outlen|. The
2098 * server's advertised protocols are provided in |in| and |inlen|. The
2099 * callback can assume that |in| is syntactically valid. The client must
2100 * select a protocol. It is fatal to the connection if this callback returns
2101 * a value other than SSL_TLSEXT_ERR_OK.
2103 void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx,
2104 int (*cb) (SSL *s, unsigned char **out,
2105 unsigned char *outlen,
2106 const unsigned char *in,
2108 void *arg), void *arg)
2110 ctx->next_proto_select_cb = cb;
2111 ctx->next_proto_select_cb_arg = arg;
2116 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2117 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2118 * length-prefixed strings). Returns 0 on success.
2120 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
2121 unsigned protos_len)
2123 OPENSSL_free(ctx->alpn_client_proto_list);
2124 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
2125 if (ctx->alpn_client_proto_list == NULL)
2127 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
2128 ctx->alpn_client_proto_list_len = protos_len;
2134 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2135 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2136 * length-prefixed strings). Returns 0 on success.
2138 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
2139 unsigned protos_len)
2141 OPENSSL_free(ssl->alpn_client_proto_list);
2142 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
2143 if (ssl->alpn_client_proto_list == NULL)
2145 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
2146 ssl->alpn_client_proto_list_len = protos_len;
2152 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2153 * called during ClientHello processing in order to select an ALPN protocol
2154 * from the client's list of offered protocols.
2156 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
2157 int (*cb) (SSL *ssl,
2158 const unsigned char **out,
2159 unsigned char *outlen,
2160 const unsigned char *in,
2162 void *arg), void *arg)
2164 ctx->alpn_select_cb = cb;
2165 ctx->alpn_select_cb_arg = arg;
2169 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
2170 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
2171 * (not including the leading length-prefix byte). If the server didn't
2172 * respond with a negotiated protocol then |*len| will be zero.
2174 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
2179 *data = ssl->s3->alpn_selected;
2183 *len = ssl->s3->alpn_selected_len;
2187 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
2188 const char *label, size_t llen,
2189 const unsigned char *p, size_t plen,
2192 if (s->version < TLS1_VERSION)
2195 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
2200 static unsigned long ssl_session_hash(const SSL_SESSION *a)
2205 ((unsigned int)a->session_id[0]) |
2206 ((unsigned int)a->session_id[1] << 8L) |
2207 ((unsigned long)a->session_id[2] << 16L) |
2208 ((unsigned long)a->session_id[3] << 24L);
2213 * NB: If this function (or indeed the hash function which uses a sort of
2214 * coarser function than this one) is changed, ensure
2215 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2216 * being able to construct an SSL_SESSION that will collide with any existing
2217 * session with a matching session ID.
2219 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
2221 if (a->ssl_version != b->ssl_version)
2223 if (a->session_id_length != b->session_id_length)
2225 return (memcmp(a->session_id, b->session_id, a->session_id_length));
2229 * These wrapper functions should remain rather than redeclaring
2230 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2231 * variable. The reason is that the functions aren't static, they're exposed
2235 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
2237 SSL_CTX *ret = NULL;
2240 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
2244 if (FIPS_mode() && (meth->version < TLS1_VERSION)) {
2245 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_AT_LEAST_TLS_1_0_NEEDED_IN_FIPS_MODE);
2249 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2250 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
2253 ret = OPENSSL_zalloc(sizeof(*ret));
2258 ret->min_proto_version = 0;
2259 ret->max_proto_version = 0;
2260 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
2261 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
2262 /* We take the system default. */
2263 ret->session_timeout = meth->get_timeout();
2264 ret->references = 1;
2265 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
2266 ret->verify_mode = SSL_VERIFY_NONE;
2267 if ((ret->cert = ssl_cert_new()) == NULL)
2270 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
2271 if (ret->sessions == NULL)
2273 ret->cert_store = X509_STORE_new();
2274 if (ret->cert_store == NULL)
2277 if (!ssl_create_cipher_list(ret->method,
2278 &ret->cipher_list, &ret->cipher_list_by_id,
2279 SSL_DEFAULT_CIPHER_LIST, ret->cert)
2280 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
2281 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
2285 ret->param = X509_VERIFY_PARAM_new();
2286 if (ret->param == NULL)
2289 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
2290 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
2293 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
2294 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
2298 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL)
2301 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
2303 /* No compression for DTLS */
2304 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
2305 ret->comp_methods = SSL_COMP_get_compression_methods();
2307 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
2309 /* Setup RFC4507 ticket keys */
2310 if ((RAND_bytes(ret->tlsext_tick_key_name, 16) <= 0)
2311 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
2312 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
2313 ret->options |= SSL_OP_NO_TICKET;
2315 #ifndef OPENSSL_NO_SRP
2316 if (!SSL_CTX_SRP_CTX_init(ret))
2319 #ifndef OPENSSL_NO_ENGINE
2320 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2321 # define eng_strx(x) #x
2322 # define eng_str(x) eng_strx(x)
2323 /* Use specific client engine automatically... ignore errors */
2326 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2329 ENGINE_load_builtin_engines();
2330 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2332 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
2338 * Default is to connect to non-RI servers. When RI is more widely
2339 * deployed might change this.
2341 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
2345 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
2351 void SSL_CTX_free(SSL_CTX *a)
2358 i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX);
2360 REF_PRINT("SSL_CTX", a);
2366 fprintf(stderr, "SSL_CTX_free, bad reference count\n");
2371 X509_VERIFY_PARAM_free(a->param);
2372 dane_ctx_final(&a->dane);
2375 * Free internal session cache. However: the remove_cb() may reference
2376 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2377 * after the sessions were flushed.
2378 * As the ex_data handling routines might also touch the session cache,
2379 * the most secure solution seems to be: empty (flush) the cache, then
2380 * free ex_data, then finally free the cache.
2381 * (See ticket [openssl.org #212].)
2383 if (a->sessions != NULL)
2384 SSL_CTX_flush_sessions(a, 0);
2386 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
2387 lh_SSL_SESSION_free(a->sessions);
2388 X509_STORE_free(a->cert_store);
2389 sk_SSL_CIPHER_free(a->cipher_list);
2390 sk_SSL_CIPHER_free(a->cipher_list_by_id);
2391 ssl_cert_free(a->cert);
2392 sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free);
2393 sk_X509_pop_free(a->extra_certs, X509_free);
2394 a->comp_methods = NULL;
2395 #ifndef OPENSSL_NO_SRTP
2396 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
2398 #ifndef OPENSSL_NO_SRP
2399 SSL_CTX_SRP_CTX_free(a);
2401 #ifndef OPENSSL_NO_ENGINE
2402 if (a->client_cert_engine)
2403 ENGINE_finish(a->client_cert_engine);
2406 #ifndef OPENSSL_NO_EC
2407 OPENSSL_free(a->tlsext_ecpointformatlist);
2408 OPENSSL_free(a->tlsext_ellipticcurvelist);
2410 OPENSSL_free(a->alpn_client_proto_list);
2415 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2417 ctx->default_passwd_callback = cb;
2420 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
2422 ctx->default_passwd_callback_userdata = u;
2425 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
2427 s->default_passwd_callback = cb;
2430 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
2432 s->default_passwd_callback_userdata = u;
2435 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
2436 int (*cb) (X509_STORE_CTX *, void *),
2439 ctx->app_verify_callback = cb;
2440 ctx->app_verify_arg = arg;
2443 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
2444 int (*cb) (int, X509_STORE_CTX *))
2446 ctx->verify_mode = mode;
2447 ctx->default_verify_callback = cb;
2450 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
2452 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2455 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
2458 ssl_cert_set_cert_cb(c->cert, cb, arg);
2461 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
2463 ssl_cert_set_cert_cb(s->cert, cb, arg);
2466 void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher)
2468 #if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_GOST)
2472 uint32_t *pvalid = s->s3->tmp.valid_flags;
2473 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
2474 unsigned long mask_k, mask_a;
2475 #ifndef OPENSSL_NO_EC
2476 int have_ecc_cert, ecdsa_ok;
2479 int pk_nid = 0, md_nid = 0;
2484 #ifndef OPENSSL_NO_DH
2485 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
2490 rsa_enc = pvalid[SSL_PKEY_RSA_ENC] & CERT_PKEY_VALID;
2491 rsa_sign = pvalid[SSL_PKEY_RSA_SIGN] & CERT_PKEY_SIGN;
2492 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_SIGN;
2493 #ifndef OPENSSL_NO_EC
2494 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
2501 "dht=%d re=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2502 dh_tmp, rsa_enc, rsa_sign, dsa_sign, dh_rsa, dh_dsa);
2505 #ifndef OPENSSL_NO_GOST
2506 cpk = &(c->pkeys[SSL_PKEY_GOST12_512]);
2507 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2508 mask_k |= SSL_kGOST;
2509 mask_a |= SSL_aGOST12;
2511 cpk = &(c->pkeys[SSL_PKEY_GOST12_256]);
2512 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2513 mask_k |= SSL_kGOST;
2514 mask_a |= SSL_aGOST12;
2516 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2517 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2518 mask_k |= SSL_kGOST;
2519 mask_a |= SSL_aGOST01;
2529 if (rsa_enc || rsa_sign) {
2537 mask_a |= SSL_aNULL;
2540 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2541 * depending on the key usage extension.
2543 #ifndef OPENSSL_NO_EC
2544 if (have_ecc_cert) {
2546 cpk = &c->pkeys[SSL_PKEY_ECC];
2548 ex_kusage = X509_get_key_usage(x);
2549 ecdh_ok = ex_kusage & X509v3_KU_KEY_AGREEMENT;
2550 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
2551 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
2553 OBJ_find_sigid_algs(X509_get_signature_nid(x), &md_nid, &pk_nid);
2556 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) {
2557 mask_k |= SSL_kECDHr;
2558 mask_a |= SSL_aECDH;
2561 if (pk_nid == NID_X9_62_id_ecPublicKey) {
2562 mask_k |= SSL_kECDHe;
2563 mask_a |= SSL_aECDH;
2567 mask_a |= SSL_aECDSA;
2572 #ifndef OPENSSL_NO_EC
2573 mask_k |= SSL_kECDHE;
2576 #ifndef OPENSSL_NO_PSK
2579 if (mask_k & SSL_kRSA)
2580 mask_k |= SSL_kRSAPSK;
2581 if (mask_k & SSL_kDHE)
2582 mask_k |= SSL_kDHEPSK;
2583 if (mask_k & SSL_kECDHE)
2584 mask_k |= SSL_kECDHEPSK;
2587 s->s3->tmp.mask_k = mask_k;
2588 s->s3->tmp.mask_a = mask_a;
2591 #ifndef OPENSSL_NO_EC
2593 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2595 unsigned long alg_k, alg_a;
2596 int md_nid = 0, pk_nid = 0;
2597 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2598 uint32_t ex_kusage = X509_get_key_usage(x);
2600 alg_k = cs->algorithm_mkey;
2601 alg_a = cs->algorithm_auth;
2603 OBJ_find_sigid_algs(X509_get_signature_nid(x), &md_nid, &pk_nid);
2605 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) {
2606 /* key usage, if present, must allow key agreement */
2607 if (!(ex_kusage & X509v3_KU_KEY_AGREEMENT)) {
2608 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2609 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2612 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION) {
2613 /* signature alg must be ECDSA */
2614 if (pk_nid != NID_X9_62_id_ecPublicKey) {
2615 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2616 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2620 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION) {
2621 /* signature alg must be RSA */
2623 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) {
2624 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2625 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2630 if (alg_a & SSL_aECDSA) {
2631 /* key usage, if present, must allow signing */
2632 if (!(ex_kusage & X509v3_KU_DIGITAL_SIGNATURE)) {
2633 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2634 SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2639 return 1; /* all checks are ok */
2644 static int ssl_get_server_cert_index(const SSL *s)
2647 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2648 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2649 idx = SSL_PKEY_RSA_SIGN;
2650 if (idx == SSL_PKEY_GOST_EC) {
2651 if (s->cert->pkeys[SSL_PKEY_GOST12_512].x509)
2652 idx = SSL_PKEY_GOST12_512;
2653 else if (s->cert->pkeys[SSL_PKEY_GOST12_256].x509)
2654 idx = SSL_PKEY_GOST12_256;
2655 else if (s->cert->pkeys[SSL_PKEY_GOST01].x509)
2656 idx = SSL_PKEY_GOST01;
2661 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR);
2665 CERT_PKEY *ssl_get_server_send_pkey(SSL *s)
2671 if (!s->s3 || !s->s3->tmp.new_cipher)
2673 ssl_set_masks(s, s->s3->tmp.new_cipher);
2675 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2677 * Broken protocol test: return last used certificate: which may mismatch
2680 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2684 i = ssl_get_server_cert_index(s);
2686 /* This may or may not be an error. */
2691 return &c->pkeys[i];
2694 EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher,
2697 unsigned long alg_a;
2701 alg_a = cipher->algorithm_auth;
2704 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2706 * Broken protocol test: use last key: which may mismatch the one
2709 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2710 idx = c->key - c->pkeys;
2714 if ((alg_a & SSL_aDSS) &&
2715 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2716 idx = SSL_PKEY_DSA_SIGN;
2717 else if (alg_a & SSL_aRSA) {
2718 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2719 idx = SSL_PKEY_RSA_SIGN;
2720 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2721 idx = SSL_PKEY_RSA_ENC;
2722 } else if ((alg_a & SSL_aECDSA) &&
2723 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2726 SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR);
2730 *pmd = s->s3->tmp.md[idx];
2731 return c->pkeys[idx].privatekey;
2734 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2735 size_t *serverinfo_length)
2739 *serverinfo_length = 0;
2742 i = ssl_get_server_cert_index(s);
2746 if (c->pkeys[i].serverinfo == NULL)
2749 *serverinfo = c->pkeys[i].serverinfo;
2750 *serverinfo_length = c->pkeys[i].serverinfo_length;
2754 void ssl_update_cache(SSL *s, int mode)
2759 * If the session_id_length is 0, we are not supposed to cache it, and it
2760 * would be rather hard to do anyway :-)
2762 if (s->session->session_id_length == 0)
2765 i = s->session_ctx->session_cache_mode;
2766 if ((i & mode) && (!s->hit)
2767 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2768 || SSL_CTX_add_session(s->session_ctx, s->session))
2769 && (s->session_ctx->new_session_cb != NULL)) {
2770 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION);
2771 if (!s->session_ctx->new_session_cb(s, s->session))
2772 SSL_SESSION_free(s->session);
2775 /* auto flush every 255 connections */
2776 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
2777 if ((((mode & SSL_SESS_CACHE_CLIENT)
2778 ? s->session_ctx->stats.sess_connect_good
2779 : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) {
2780 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
2785 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2790 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2795 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2799 if (s->method != meth) {
2800 const SSL_METHOD *sm = s->method;
2801 int (*hf)(SSL *) = s->handshake_func;
2803 if (sm->version == meth->version)
2808 ret = s->method->ssl_new(s);
2811 if (hf == sm->ssl_connect)
2812 s->handshake_func = meth->ssl_connect;
2813 else if (hf == sm->ssl_accept)
2814 s->handshake_func = meth->ssl_accept;
2819 int SSL_get_error(const SSL *s, int i)
2826 return (SSL_ERROR_NONE);
2829 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2830 * where we do encode the error
2832 if ((l = ERR_peek_error()) != 0) {
2833 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2834 return (SSL_ERROR_SYSCALL);
2836 return (SSL_ERROR_SSL);
2839 if ((i < 0) && SSL_want_read(s)) {
2840 bio = SSL_get_rbio(s);
2841 if (BIO_should_read(bio))
2842 return (SSL_ERROR_WANT_READ);
2843 else if (BIO_should_write(bio))
2845 * This one doesn't make too much sense ... We never try to write
2846 * to the rbio, and an application program where rbio and wbio
2847 * are separate couldn't even know what it should wait for.
2848 * However if we ever set s->rwstate incorrectly (so that we have
2849 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2850 * wbio *are* the same, this test works around that bug; so it
2851 * might be safer to keep it.
2853 return (SSL_ERROR_WANT_WRITE);
2854 else if (BIO_should_io_special(bio)) {
2855 reason = BIO_get_retry_reason(bio);
2856 if (reason == BIO_RR_CONNECT)
2857 return (SSL_ERROR_WANT_CONNECT);
2858 else if (reason == BIO_RR_ACCEPT)
2859 return (SSL_ERROR_WANT_ACCEPT);
2861 return (SSL_ERROR_SYSCALL); /* unknown */
2865 if ((i < 0) && SSL_want_write(s)) {
2866 bio = SSL_get_wbio(s);
2867 if (BIO_should_write(bio))
2868 return (SSL_ERROR_WANT_WRITE);
2869 else if (BIO_should_read(bio))
2871 * See above (SSL_want_read(s) with BIO_should_write(bio))
2873 return (SSL_ERROR_WANT_READ);
2874 else if (BIO_should_io_special(bio)) {
2875 reason = BIO_get_retry_reason(bio);
2876 if (reason == BIO_RR_CONNECT)
2877 return (SSL_ERROR_WANT_CONNECT);
2878 else if (reason == BIO_RR_ACCEPT)
2879 return (SSL_ERROR_WANT_ACCEPT);
2881 return (SSL_ERROR_SYSCALL);
2884 if ((i < 0) && SSL_want_x509_lookup(s)) {
2885 return (SSL_ERROR_WANT_X509_LOOKUP);
2887 if ((i < 0) && SSL_want_async(s)) {
2888 return SSL_ERROR_WANT_ASYNC;
2892 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2893 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2894 return (SSL_ERROR_ZERO_RETURN);
2896 return (SSL_ERROR_SYSCALL);
2899 static int ssl_do_handshake_intern(void *vargs)
2901 struct ssl_async_args *args;
2904 args = (struct ssl_async_args *)vargs;
2907 return s->handshake_func(s);
2910 int SSL_do_handshake(SSL *s)
2914 if (s->handshake_func == NULL) {
2915 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
2919 s->method->ssl_renegotiate_check(s);
2921 if (SSL_in_init(s) || SSL_in_before(s)) {
2922 if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2923 struct ssl_async_args args;
2927 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
2929 ret = s->handshake_func(s);
2935 void SSL_set_accept_state(SSL *s)
2939 ossl_statem_clear(s);
2940 s->handshake_func = s->method->ssl_accept;
2944 void SSL_set_connect_state(SSL *s)
2948 ossl_statem_clear(s);
2949 s->handshake_func = s->method->ssl_connect;
2953 int ssl_undefined_function(SSL *s)
2955 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2959 int ssl_undefined_void_function(void)
2961 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
2962 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2966 int ssl_undefined_const_function(const SSL *s)
2971 SSL_METHOD *ssl_bad_method(int ver)
2973 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2977 const char *SSL_get_version(const SSL *s)
2979 if (s->version == TLS1_2_VERSION)
2981 else if (s->version == TLS1_1_VERSION)
2983 else if (s->version == TLS1_VERSION)
2985 else if (s->version == SSL3_VERSION)
2987 else if (s->version == DTLS1_BAD_VER)
2988 return ("DTLSv0.9");
2989 else if (s->version == DTLS1_VERSION)
2991 else if (s->version == DTLS1_2_VERSION)
2992 return ("DTLSv1.2");
2997 SSL *SSL_dup(SSL *s)
2999 STACK_OF(X509_NAME) *sk;
3004 /* If we're not quiescent, just up_ref! */
3005 if (!SSL_in_init(s) || !SSL_in_before(s)) {
3006 CRYPTO_add(&s->references, 1, CRYPTO_LOCK_SSL);
3011 * Otherwise, copy configuration state, and session if set.
3013 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
3016 if (s->session != NULL) {
3018 * Arranges to share the same session via up_ref. This "copies"
3019 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3021 if (!SSL_copy_session_id(ret, s))
3025 * No session has been established yet, so we have to expect that
3026 * s->cert or ret->cert will be changed later -- they should not both
3027 * point to the same object, and thus we can't use
3028 * SSL_copy_session_id.
3030 if (!SSL_set_ssl_method(ret, s->method))
3033 if (s->cert != NULL) {
3034 ssl_cert_free(ret->cert);
3035 ret->cert = ssl_cert_dup(s->cert);
3036 if (ret->cert == NULL)
3040 if (!SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length))
3044 ssl_dane_dup(ret, s);
3045 ret->version = s->version;
3046 ret->options = s->options;
3047 ret->mode = s->mode;
3048 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
3049 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
3050 ret->msg_callback = s->msg_callback;
3051 ret->msg_callback_arg = s->msg_callback_arg;
3052 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
3053 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
3054 ret->generate_session_id = s->generate_session_id;
3056 SSL_set_info_callback(ret, SSL_get_info_callback(s));
3058 /* copy app data, a little dangerous perhaps */
3059 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
3062 /* setup rbio, and wbio */
3063 if (s->rbio != NULL) {
3064 if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
3067 if (s->wbio != NULL) {
3068 if (s->wbio != s->rbio) {
3069 if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
3072 ret->wbio = ret->rbio;
3075 ret->server = s->server;
3076 if (s->handshake_func) {
3078 SSL_set_accept_state(ret);
3080 SSL_set_connect_state(ret);
3082 ret->shutdown = s->shutdown;
3085 ret->default_passwd_callback = s->default_passwd_callback;
3086 ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata;
3088 X509_VERIFY_PARAM_inherit(ret->param, s->param);
3090 /* dup the cipher_list and cipher_list_by_id stacks */
3091 if (s->cipher_list != NULL) {
3092 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
3095 if (s->cipher_list_by_id != NULL)
3096 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
3100 /* Dup the client_CA list */
3101 if (s->client_CA != NULL) {
3102 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL)
3104 ret->client_CA = sk;
3105 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
3106 xn = sk_X509_NAME_value(sk, i);
3107 if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) {
3120 void ssl_clear_cipher_ctx(SSL *s)
3122 if (s->enc_read_ctx != NULL) {
3123 EVP_CIPHER_CTX_free(s->enc_read_ctx);
3124 s->enc_read_ctx = NULL;
3126 if (s->enc_write_ctx != NULL) {
3127 EVP_CIPHER_CTX_free(s->enc_write_ctx);
3128 s->enc_write_ctx = NULL;
3130 #ifndef OPENSSL_NO_COMP
3131 COMP_CTX_free(s->expand);
3133 COMP_CTX_free(s->compress);
3138 X509 *SSL_get_certificate(const SSL *s)
3140 if (s->cert != NULL)
3141 return (s->cert->key->x509);
3146 EVP_PKEY *SSL_get_privatekey(const SSL *s)
3148 if (s->cert != NULL)
3149 return (s->cert->key->privatekey);
3154 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
3156 if (ctx->cert != NULL)
3157 return ctx->cert->key->x509;
3162 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
3164 if (ctx->cert != NULL)
3165 return ctx->cert->key->privatekey;
3170 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
3172 if ((s->session != NULL) && (s->session->cipher != NULL))
3173 return (s->session->cipher);
3177 const COMP_METHOD *SSL_get_current_compression(SSL *s)
3179 #ifndef OPENSSL_NO_COMP
3180 return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
3186 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
3188 #ifndef OPENSSL_NO_COMP
3189 return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
3195 int ssl_init_wbio_buffer(SSL *s, int push)
3199 if (s->bbio == NULL) {
3200 bbio = BIO_new(BIO_f_buffer());
3206 if (s->bbio == s->wbio)
3207 s->wbio = BIO_pop(s->wbio);
3209 (void)BIO_reset(bbio);
3210 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
3211 if (!BIO_set_read_buffer_size(bbio, 1)) {
3212 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
3216 if (s->wbio != bbio)
3217 s->wbio = BIO_push(bbio, s->wbio);
3219 if (s->wbio == bbio)
3220 s->wbio = BIO_pop(bbio);
3225 void ssl_free_wbio_buffer(SSL *s)
3227 /* callers ensure s is never null */
3228 if (s->bbio == NULL)
3231 if (s->bbio == s->wbio) {
3232 /* remove buffering */
3233 s->wbio = BIO_pop(s->wbio);
3234 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
3235 * adding one more preprocessor symbol */
3236 assert(s->wbio != NULL);
3243 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
3245 ctx->quiet_shutdown = mode;
3248 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
3250 return (ctx->quiet_shutdown);
3253 void SSL_set_quiet_shutdown(SSL *s, int mode)
3255 s->quiet_shutdown = mode;
3258 int SSL_get_quiet_shutdown(const SSL *s)
3260 return (s->quiet_shutdown);
3263 void SSL_set_shutdown(SSL *s, int mode)
3268 int SSL_get_shutdown(const SSL *s)
3270 return (s->shutdown);
3273 int SSL_version(const SSL *s)
3275 return (s->version);
3278 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
3283 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
3286 if (ssl->ctx == ctx)
3289 ctx = ssl->initial_ctx;
3290 new_cert = ssl_cert_dup(ctx->cert);
3291 if (new_cert == NULL) {
3294 ssl_cert_free(ssl->cert);
3295 ssl->cert = new_cert;
3298 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3299 * so setter APIs must prevent invalid lengths from entering the system.
3301 OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx));
3304 * If the session ID context matches that of the parent SSL_CTX,
3305 * inherit it from the new SSL_CTX as well. If however the context does
3306 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3307 * leave it unchanged.
3309 if ((ssl->ctx != NULL) &&
3310 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
3311 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
3312 ssl->sid_ctx_length = ctx->sid_ctx_length;
3313 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
3316 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
3317 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3323 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3325 return (X509_STORE_set_default_paths(ctx->cert_store));
3328 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
3330 X509_LOOKUP *lookup;
3332 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
3335 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
3337 /* Clear any errors if the default directory does not exist */
3343 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
3345 X509_LOOKUP *lookup;
3347 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
3351 X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
3353 /* Clear any errors if the default file does not exist */
3359 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3362 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath));
3365 void SSL_set_info_callback(SSL *ssl,
3366 void (*cb) (const SSL *ssl, int type, int val))
3368 ssl->info_callback = cb;
3372 * One compiler (Diab DCC) doesn't like argument names in returned function
3375 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
3378 return ssl->info_callback;
3381 void SSL_set_verify_result(SSL *ssl, long arg)
3383 ssl->verify_result = arg;
3386 long SSL_get_verify_result(const SSL *ssl)
3388 return (ssl->verify_result);
3391 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
3394 return sizeof(ssl->s3->client_random);
3395 if (outlen > sizeof(ssl->s3->client_random))
3396 outlen = sizeof(ssl->s3->client_random);
3397 memcpy(out, ssl->s3->client_random, outlen);
3401 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
3404 return sizeof(ssl->s3->server_random);
3405 if (outlen > sizeof(ssl->s3->server_random))
3406 outlen = sizeof(ssl->s3->server_random);
3407 memcpy(out, ssl->s3->server_random, outlen);
3411 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
3412 unsigned char *out, size_t outlen)
3414 if (session->master_key_length < 0) {
3415 /* Should never happen */
3419 return session->master_key_length;
3420 if (outlen > (size_t)session->master_key_length)
3421 outlen = session->master_key_length;
3422 memcpy(out, session->master_key, outlen);
3426 int SSL_set_ex_data(SSL *s, int idx, void *arg)
3428 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3431 void *SSL_get_ex_data(const SSL *s, int idx)
3433 return (CRYPTO_get_ex_data(&s->ex_data, idx));
3436 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
3438 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3441 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
3443 return (CRYPTO_get_ex_data(&s->ex_data, idx));
3451 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3453 return (ctx->cert_store);
3456 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
3458 X509_STORE_free(ctx->cert_store);
3459 ctx->cert_store = store;
3462 int SSL_want(const SSL *s)
3464 return (s->rwstate);
3468 * \brief Set the callback for generating temporary DH keys.
3469 * \param ctx the SSL context.
3470 * \param dh the callback
3473 #ifndef OPENSSL_NO_DH
3474 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
3475 DH *(*dh) (SSL *ssl, int is_export,
3478 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3481 void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
3484 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3488 #ifndef OPENSSL_NO_PSK
3489 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3491 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3492 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT,
3493 SSL_R_DATA_LENGTH_TOO_LONG);
3496 OPENSSL_free(ctx->cert->psk_identity_hint);
3497 if (identity_hint != NULL) {
3498 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
3499 if (ctx->cert->psk_identity_hint == NULL)
3502 ctx->cert->psk_identity_hint = NULL;
3506 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3511 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3512 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3515 OPENSSL_free(s->cert->psk_identity_hint);
3516 if (identity_hint != NULL) {
3517 s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
3518 if (s->cert->psk_identity_hint == NULL)
3521 s->cert->psk_identity_hint = NULL;
3525 const char *SSL_get_psk_identity_hint(const SSL *s)
3527 if (s == NULL || s->session == NULL)
3529 return (s->session->psk_identity_hint);
3532 const char *SSL_get_psk_identity(const SSL *s)
3534 if (s == NULL || s->session == NULL)
3536 return (s->session->psk_identity);
3539 void SSL_set_psk_client_callback(SSL *s,
3540 unsigned int (*cb) (SSL *ssl,
3549 s->psk_client_callback = cb;
3552 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3553 unsigned int (*cb) (SSL *ssl,
3562 ctx->psk_client_callback = cb;
3565 void SSL_set_psk_server_callback(SSL *s,
3566 unsigned int (*cb) (SSL *ssl,
3567 const char *identity,
3572 s->psk_server_callback = cb;
3575 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3576 unsigned int (*cb) (SSL *ssl,
3577 const char *identity,
3582 ctx->psk_server_callback = cb;
3586 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
3587 void (*cb) (int write_p, int version,
3588 int content_type, const void *buf,
3589 size_t len, SSL *ssl, void *arg))
3591 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3594 void SSL_set_msg_callback(SSL *ssl,
3595 void (*cb) (int write_p, int version,
3596 int content_type, const void *buf,
3597 size_t len, SSL *ssl, void *arg))
3599 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3602 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3603 int (*cb) (SSL *ssl,
3607 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3608 (void (*)(void))cb);
3611 void SSL_set_not_resumable_session_callback(SSL *ssl,
3612 int (*cb) (SSL *ssl,
3613 int is_forward_secure))
3615 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3616 (void (*)(void))cb);
3620 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3621 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3622 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3626 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
3628 ssl_clear_hash_ctx(hash);
3629 *hash = EVP_MD_CTX_new();
3630 if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) {
3631 EVP_MD_CTX_free(*hash);
3638 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3642 EVP_MD_CTX_free(*hash);
3646 /* Retrieve handshake hashes */
3647 int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen)
3649 EVP_MD_CTX *ctx = NULL;
3650 EVP_MD_CTX *hdgst = s->s3->handshake_dgst;
3651 int ret = EVP_MD_CTX_size(hdgst);
3652 if (ret < 0 || ret > outlen) {
3656 ctx = EVP_MD_CTX_new();
3661 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
3662 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0)
3665 EVP_MD_CTX_free(ctx);
3669 int SSL_cache_hit(SSL *s)
3674 int SSL_is_server(SSL *s)
3679 #if OPENSSL_API_COMPAT < 0x10100000L
3680 void SSL_set_debug(SSL *s, int debug)
3682 /* Old function was do-nothing anyway... */
3689 void SSL_set_security_level(SSL *s, int level)
3691 s->cert->sec_level = level;
3694 int SSL_get_security_level(const SSL *s)
3696 return s->cert->sec_level;
3699 void SSL_set_security_callback(SSL *s,
3700 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3701 int bits, int nid, void *other,
3704 s->cert->sec_cb = cb;
3707 int (*SSL_get_security_callback(const SSL *s)) (SSL *s, SSL_CTX *ctx, int op,
3709 void *other, void *ex) {
3710 return s->cert->sec_cb;
3713 void SSL_set0_security_ex_data(SSL *s, void *ex)
3715 s->cert->sec_ex = ex;
3718 void *SSL_get0_security_ex_data(const SSL *s)
3720 return s->cert->sec_ex;
3723 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
3725 ctx->cert->sec_level = level;
3728 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
3730 return ctx->cert->sec_level;
3733 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
3734 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3735 int bits, int nid, void *other,
3738 ctx->cert->sec_cb = cb;
3741 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (SSL *s,
3747 return ctx->cert->sec_cb;
3750 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
3752 ctx->cert->sec_ex = ex;
3755 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
3757 return ctx->cert->sec_ex;
3762 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
3763 * can return unsigned long, instead of the generic long return value from the
3764 * control interface.
3766 unsigned long SSL_CTX_get_options(const SSL_CTX *ctx)
3768 return ctx->options;
3770 unsigned long SSL_get_options(const SSL* s)
3774 unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op)
3776 return ctx->options |= op;
3778 unsigned long SSL_set_options(SSL *s, unsigned long op)
3780 return s->options |= op;
3782 unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op)
3784 return ctx->options &= ~op;
3786 unsigned long SSL_clear_options(SSL *s, unsigned long op)
3788 return s->options &= ~op;
3791 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);