1 /*! \file ssl/ssl_lib.c
2 * \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 "kssl_lcl.h"
151 #include <openssl/objects.h>
152 #include <openssl/lhash.h>
153 #include <openssl/x509v3.h>
154 #include <openssl/rand.h>
155 #include <openssl/ocsp.h>
156 #ifndef OPENSSL_NO_DH
157 #include <openssl/dh.h>
159 #ifndef OPENSSL_NO_ENGINE
160 #include <openssl/engine.h>
163 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
165 SSL3_ENC_METHOD ssl3_undef_enc_method={
166 /* evil casts, but these functions are only called if there's a library bug */
167 (int (*)(SSL *,int))ssl_undefined_function,
168 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
169 ssl_undefined_function,
170 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
171 (int (*)(SSL*, int))ssl_undefined_function,
172 (int (*)(SSL *, const char*, int, unsigned char *))ssl_undefined_function,
173 0, /* finish_mac_length */
174 (int (*)(SSL *, int, unsigned char *))ssl_undefined_function,
175 NULL, /* client_finished_label */
176 0, /* client_finished_label_len */
177 NULL, /* server_finished_label */
178 0, /* server_finished_label_len */
179 (int (*)(int))ssl_undefined_function,
180 (int (*)(SSL *, unsigned char *, size_t, const char *,
181 size_t, const unsigned char *, size_t,
182 int use_context)) ssl_undefined_function,
185 int SSL_clear(SSL *s)
188 if (s->method == NULL)
190 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
194 if (ssl_clear_bad_session(s))
196 SSL_SESSION_free(s->session);
204 #if 0 /* Disabled since version 1.10 of this file (early return not
205 * needed because SSL_clear is not called when doing renegotiation) */
206 /* This is set if we are doing dynamic renegotiation so keep
207 * the old cipher. It is sort of a SSL_clear_lite :-) */
208 if (s->renegotiate) return(1);
212 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
219 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
221 s->version=s->method->version;
222 s->client_version=s->version;
223 s->rwstate=SSL_NOTHING;
224 s->rstate=SSL_ST_READ_HEADER;
226 s->read_ahead=s->ctx->read_ahead;
229 if (s->init_buf != NULL)
231 BUF_MEM_free(s->init_buf);
235 ssl_clear_cipher_ctx(s);
236 ssl_clear_hash_ctx(&s->read_hash);
237 ssl_clear_hash_ctx(&s->write_hash);
242 /* Check to see if we were changed into a different method, if
243 * so, revert back if we are not doing session-id reuse. */
244 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
246 s->method->ssl_free(s);
247 s->method=s->ctx->method;
248 if (!s->method->ssl_new(s))
253 s->method->ssl_clear(s);
257 /** Used to change an SSL_CTXs default SSL method type */
258 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,const SSL_METHOD *meth)
260 STACK_OF(SSL_CIPHER) *sk;
264 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
265 &(ctx->cipher_list_by_id),
266 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, ctx->cert);
267 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
269 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
275 SSL *SSL_new(SSL_CTX *ctx)
281 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
284 if (ctx->method == NULL)
286 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
290 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
291 if (s == NULL) goto err;
292 memset(s,0,sizeof(SSL));
294 #ifndef OPENSSL_NO_KRB5
295 s->kssl_ctx = kssl_ctx_new();
296 #endif /* OPENSSL_NO_KRB5 */
298 s->options=ctx->options;
300 s->max_cert_list=ctx->max_cert_list;
302 if (ctx->cert != NULL)
304 /* Earlier library versions used to copy the pointer to
305 * the CERT, not its contents; only when setting new
306 * parameters for the per-SSL copy, ssl_cert_new would be
307 * called (and the direct reference to the per-SSL_CTX
308 * settings would be lost, but those still were indirectly
309 * accessed for various purposes, and for that reason they
310 * used to be known as s->ctx->default_cert).
311 * Now we don't look at the SSL_CTX's CERT after having
312 * duplicated it once. */
314 s->cert = ssl_cert_dup(ctx->cert);
319 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
321 s->read_ahead=ctx->read_ahead;
322 s->msg_callback=ctx->msg_callback;
323 s->msg_callback_arg=ctx->msg_callback_arg;
324 s->verify_mode=ctx->verify_mode;
326 s->verify_depth=ctx->verify_depth;
328 s->sid_ctx_length=ctx->sid_ctx_length;
329 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
330 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
331 s->verify_callback=ctx->default_verify_callback;
332 s->generate_session_id=ctx->generate_session_id;
334 s->param = X509_VERIFY_PARAM_new();
337 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
339 s->purpose = ctx->purpose;
340 s->trust = ctx->trust;
342 s->quiet_shutdown=ctx->quiet_shutdown;
343 s->max_send_fragment = ctx->max_send_fragment;
345 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
347 #ifndef OPENSSL_NO_TLSEXT
348 s->tlsext_debug_cb = 0;
349 s->tlsext_debug_arg = NULL;
350 s->tlsext_ticket_expected = 0;
351 s->tlsext_status_type = -1;
352 s->tlsext_status_expected = 0;
353 s->tlsext_ocsp_ids = NULL;
354 s->tlsext_ocsp_exts = NULL;
355 s->tlsext_ocsp_resp = NULL;
356 s->tlsext_ocsp_resplen = -1;
357 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
359 #ifndef OPENSSL_NO_EC
360 if (ctx->tlsext_ecpointformatlist)
362 s->tlsext_ecpointformatlist =
363 BUF_memdup(ctx->tlsext_ecpointformatlist,
364 ctx->tlsext_ecpointformatlist_length);
365 if (!s->tlsext_ecpointformatlist)
367 s->tlsext_ecpointformatlist_length =
368 ctx->tlsext_ecpointformatlist_length;
370 if (ctx->tlsext_ellipticcurvelist)
372 s->tlsext_ellipticcurvelist =
373 BUF_memdup(ctx->tlsext_ellipticcurvelist,
374 ctx->tlsext_ellipticcurvelist_length);
375 if (!s->tlsext_ellipticcurvelist)
377 s->tlsext_ellipticcurvelist_length =
378 ctx->tlsext_ellipticcurvelist_length;
381 # ifndef OPENSSL_NO_NEXTPROTONEG
382 s->next_proto_negotiated = NULL;
385 if (s->ctx->alpn_client_proto_list)
387 s->alpn_client_proto_list =
388 OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
389 if (s->alpn_client_proto_list == NULL)
391 memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
392 s->ctx->alpn_client_proto_list_len);
393 s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
397 s->verify_result=X509_V_OK;
399 s->method=ctx->method;
401 if (!s->method->ssl_new(s))
405 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
409 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
411 #ifndef OPENSSL_NO_PSK
412 s->psk_client_callback=ctx->psk_client_callback;
413 s->psk_server_callback=ctx->psk_server_callback;
421 ssl_cert_free(s->cert);
423 SSL_CTX_free(s->ctx); /* decrement reference count */
426 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
430 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
431 unsigned int sid_ctx_len)
433 if(sid_ctx_len > sizeof ctx->sid_ctx)
435 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
438 ctx->sid_ctx_length=sid_ctx_len;
439 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
444 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
445 unsigned int sid_ctx_len)
447 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
449 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
452 ssl->sid_ctx_length=sid_ctx_len;
453 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
458 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
460 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
461 ctx->generate_session_id = cb;
462 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
466 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
468 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
469 ssl->generate_session_id = cb;
470 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
474 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
477 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
478 * we can "construct" a session to give us the desired check - ie. to
479 * find if there's a session in the hash table that would conflict with
480 * any new session built out of this id/id_len and the ssl_version in
481 * use by this SSL. */
484 if(id_len > sizeof r.session_id)
487 r.ssl_version = ssl->version;
488 r.session_id_length = id_len;
489 memcpy(r.session_id, id, id_len);
490 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
491 * callback is calling us to check the uniqueness of a shorter ID, it
492 * must be compared as a padded-out ID because that is what it will be
493 * converted to when the callback has finished choosing it. */
494 if((r.ssl_version == SSL2_VERSION) &&
495 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
497 memset(r.session_id + id_len, 0,
498 SSL2_SSL_SESSION_ID_LENGTH - id_len);
499 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
502 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
503 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
504 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
508 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
510 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
513 int SSL_set_purpose(SSL *s, int purpose)
515 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
518 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
520 return X509_VERIFY_PARAM_set_trust(s->param, trust);
523 int SSL_set_trust(SSL *s, int trust)
525 return X509_VERIFY_PARAM_set_trust(s->param, trust);
528 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
530 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
533 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
535 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
538 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
543 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
548 void SSL_certs_clear(SSL *s)
550 ssl_cert_clear_certs(s->cert);
553 void SSL_free(SSL *s)
560 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
568 fprintf(stderr,"SSL_free, bad reference count\n");
574 X509_VERIFY_PARAM_free(s->param);
576 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
580 /* If the buffering BIO is in place, pop it off */
581 if (s->bbio == s->wbio)
583 s->wbio=BIO_pop(s->wbio);
589 BIO_free_all(s->rbio);
590 if ((s->wbio != NULL) && (s->wbio != s->rbio))
591 BIO_free_all(s->wbio);
593 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
595 /* add extra stuff */
596 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
597 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
599 /* Make the next call work :-) */
600 if (s->session != NULL)
602 ssl_clear_bad_session(s);
603 SSL_SESSION_free(s->session);
606 ssl_clear_cipher_ctx(s);
607 ssl_clear_hash_ctx(&s->read_hash);
608 ssl_clear_hash_ctx(&s->write_hash);
610 if (s->cert != NULL) ssl_cert_free(s->cert);
611 /* Free up if allocated */
613 #ifndef OPENSSL_NO_TLSEXT
614 if (s->tlsext_hostname)
615 OPENSSL_free(s->tlsext_hostname);
616 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx);
617 #ifndef OPENSSL_NO_EC
618 if (s->tlsext_ecpointformatlist) OPENSSL_free(s->tlsext_ecpointformatlist);
619 if (s->tlsext_ellipticcurvelist) OPENSSL_free(s->tlsext_ellipticcurvelist);
620 #endif /* OPENSSL_NO_EC */
621 if (s->tlsext_opaque_prf_input) OPENSSL_free(s->tlsext_opaque_prf_input);
622 if (s->tlsext_ocsp_exts)
623 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
624 X509_EXTENSION_free);
625 if (s->tlsext_ocsp_ids)
626 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
627 if (s->tlsext_ocsp_resp)
628 OPENSSL_free(s->tlsext_ocsp_resp);
629 if (s->alpn_client_proto_list)
630 OPENSSL_free(s->alpn_client_proto_list);
633 if (s->client_CA != NULL)
634 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
636 if (s->method != NULL) s->method->ssl_free(s);
638 if (s->ctx) SSL_CTX_free(s->ctx);
640 #ifndef OPENSSL_NO_KRB5
641 if (s->kssl_ctx != NULL)
642 kssl_ctx_free(s->kssl_ctx);
643 #endif /* OPENSSL_NO_KRB5 */
645 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
646 if (s->next_proto_negotiated)
647 OPENSSL_free(s->next_proto_negotiated);
650 if (s->srtp_profiles)
651 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
653 #ifndef OPENSSL_NO_DANE
654 if (s->tlsa_record && s->tlsa_record!=(void *)-1)
655 OPENSSL_free(s->tlsa_record);
661 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
663 /* If the output buffering BIO is still in place, remove it
667 if (s->wbio == s->bbio)
669 s->wbio=s->wbio->next_bio;
670 s->bbio->next_bio=NULL;
673 if ((s->rbio != NULL) && (s->rbio != rbio))
674 BIO_free_all(s->rbio);
675 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
676 BIO_free_all(s->wbio);
681 BIO *SSL_get_rbio(const SSL *s)
684 BIO *SSL_get_wbio(const SSL *s)
687 int SSL_get_fd(const SSL *s)
689 return(SSL_get_rfd(s));
692 int SSL_get_rfd(const SSL *s)
698 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
704 int SSL_get_wfd(const SSL *s)
710 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
716 #ifndef OPENSSL_NO_SOCK
717 int SSL_set_fd(SSL *s,int fd)
722 bio=BIO_new(BIO_s_socket());
726 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
729 BIO_set_fd(bio,fd,BIO_NOCLOSE);
730 SSL_set_bio(s,bio,bio);
736 int SSL_set_wfd(SSL *s,int fd)
741 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
742 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
744 bio=BIO_new(BIO_s_socket());
747 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
748 BIO_set_fd(bio,fd,BIO_NOCLOSE);
749 SSL_set_bio(s,SSL_get_rbio(s),bio);
752 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
758 int SSL_set_rfd(SSL *s,int fd)
763 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
764 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
766 bio=BIO_new(BIO_s_socket());
770 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
773 BIO_set_fd(bio,fd,BIO_NOCLOSE);
774 SSL_set_bio(s,bio,SSL_get_wbio(s));
777 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
785 /* return length of latest Finished message we sent, copy to 'buf' */
786 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
792 ret = s->s3->tmp.finish_md_len;
795 memcpy(buf, s->s3->tmp.finish_md, count);
800 /* return length of latest Finished message we expected, copy to 'buf' */
801 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
807 ret = s->s3->tmp.peer_finish_md_len;
810 memcpy(buf, s->s3->tmp.peer_finish_md, count);
816 int SSL_get_verify_mode(const SSL *s)
818 return(s->verify_mode);
821 int SSL_get_verify_depth(const SSL *s)
823 return X509_VERIFY_PARAM_get_depth(s->param);
826 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
828 return(s->verify_callback);
831 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
833 return(ctx->verify_mode);
836 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
838 return X509_VERIFY_PARAM_get_depth(ctx->param);
841 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
843 return(ctx->default_verify_callback);
846 void SSL_set_verify(SSL *s,int mode,
847 int (*callback)(int ok,X509_STORE_CTX *ctx))
850 if (callback != NULL)
851 s->verify_callback=callback;
854 void SSL_set_verify_depth(SSL *s,int depth)
856 X509_VERIFY_PARAM_set_depth(s->param, depth);
859 void SSL_set_read_ahead(SSL *s,int yes)
864 int SSL_get_read_ahead(const SSL *s)
866 return(s->read_ahead);
869 int SSL_pending(const SSL *s)
871 /* SSL_pending cannot work properly if read-ahead is enabled
872 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
873 * and it is impossible to fix since SSL_pending cannot report
874 * errors that may be observed while scanning the new data.
875 * (Note that SSL_pending() is often used as a boolean value,
876 * so we'd better not return -1.)
878 return(s->method->ssl_pending(s));
881 X509 *SSL_get_peer_certificate(const SSL *s)
885 if ((s == NULL) || (s->session == NULL))
890 if (r == NULL) return(r);
892 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
897 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
901 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
904 r=s->session->sess_cert->cert_chain;
906 /* If we are a client, cert_chain includes the peer's own
907 * certificate; if we are a server, it does not. */
912 /* Now in theory, since the calling process own 't' it should be safe to
913 * modify. We need to be able to read f without being hassled */
914 void SSL_copy_session_id(SSL *t,const SSL *f)
918 /* Do we need to to SSL locking? */
919 SSL_set_session(t,SSL_get_session(f));
921 /* what if we are setup as SSLv2 but want to talk SSLv3 or
923 if (t->method != f->method)
925 t->method->ssl_free(t); /* cleanup current */
926 t->method=f->method; /* change method */
927 t->method->ssl_new(t); /* setup new */
933 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
938 if (tmp != NULL) ssl_cert_free(tmp);
939 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
942 /* Fix this so it checks all the valid key/cert options */
943 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
945 if ( (ctx == NULL) ||
946 (ctx->cert == NULL) ||
947 (ctx->cert->key->x509 == NULL))
949 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
952 if (ctx->cert->key->privatekey == NULL)
954 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
957 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
960 /* Fix this function so that it takes an optional type parameter */
961 int SSL_check_private_key(const SSL *ssl)
965 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
968 if (ssl->cert == NULL)
970 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
973 if (ssl->cert->key->x509 == NULL)
975 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
978 if (ssl->cert->key->privatekey == NULL)
980 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
983 return(X509_check_private_key(ssl->cert->key->x509,
984 ssl->cert->key->privatekey));
987 int SSL_accept(SSL *s)
989 if (s->handshake_func == 0)
990 /* Not properly initialized yet */
991 SSL_set_accept_state(s);
993 return(s->method->ssl_accept(s));
996 int SSL_connect(SSL *s)
998 if (s->handshake_func == 0)
999 /* Not properly initialized yet */
1000 SSL_set_connect_state(s);
1002 return(s->method->ssl_connect(s));
1005 long SSL_get_default_timeout(const SSL *s)
1007 return(s->method->get_timeout());
1010 int SSL_read(SSL *s,void *buf,int num)
1012 if (s->handshake_func == 0)
1014 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
1018 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
1020 s->rwstate=SSL_NOTHING;
1023 return(s->method->ssl_read(s,buf,num));
1026 int SSL_peek(SSL *s,void *buf,int num)
1028 if (s->handshake_func == 0)
1030 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
1034 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
1038 return(s->method->ssl_peek(s,buf,num));
1041 int SSL_write(SSL *s,const void *buf,int num)
1043 if (s->handshake_func == 0)
1045 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
1049 if (s->shutdown & SSL_SENT_SHUTDOWN)
1051 s->rwstate=SSL_NOTHING;
1052 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
1055 return(s->method->ssl_write(s,buf,num));
1058 int SSL_shutdown(SSL *s)
1060 /* Note that this function behaves differently from what one might
1061 * expect. Return values are 0 for no success (yet),
1062 * 1 for success; but calling it once is usually not enough,
1063 * even if blocking I/O is used (see ssl3_shutdown).
1066 if (s->handshake_func == 0)
1068 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1072 if ((s != NULL) && !SSL_in_init(s))
1073 return(s->method->ssl_shutdown(s));
1078 int SSL_renegotiate(SSL *s)
1080 if (s->renegotiate == 0)
1085 return(s->method->ssl_renegotiate(s));
1088 int SSL_renegotiate_abbreviated(SSL *s)
1090 if (s->renegotiate == 0)
1095 return(s->method->ssl_renegotiate(s));
1098 int SSL_renegotiate_pending(SSL *s)
1100 /* becomes true when negotiation is requested;
1101 * false again once a handshake has finished */
1102 return (s->renegotiate != 0);
1105 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
1111 case SSL_CTRL_GET_READ_AHEAD:
1112 return(s->read_ahead);
1113 case SSL_CTRL_SET_READ_AHEAD:
1118 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1119 s->msg_callback_arg = parg;
1122 case SSL_CTRL_OPTIONS:
1123 return(s->options|=larg);
1124 case SSL_CTRL_CLEAR_OPTIONS:
1125 return(s->options&=~larg);
1127 return(s->mode|=larg);
1128 case SSL_CTRL_CLEAR_MODE:
1129 return(s->mode &=~larg);
1130 case SSL_CTRL_GET_MAX_CERT_LIST:
1131 return(s->max_cert_list);
1132 case SSL_CTRL_SET_MAX_CERT_LIST:
1134 s->max_cert_list=larg;
1136 case SSL_CTRL_SET_MTU:
1137 #ifndef OPENSSL_NO_DTLS1
1138 if (larg < (long)dtls1_min_mtu())
1148 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1149 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1151 s->max_send_fragment = larg;
1153 case SSL_CTRL_GET_RI_SUPPORT:
1155 return s->s3->send_connection_binding;
1157 case SSL_CTRL_CERT_FLAGS:
1158 return(s->cert->cert_flags|=larg);
1159 case SSL_CTRL_CLEAR_CERT_FLAGS:
1160 return(s->cert->cert_flags &=~larg);
1162 case SSL_CTRL_GET_RAW_CIPHERLIST:
1165 if (s->cert->ciphers_raw == NULL)
1167 *(unsigned char **)parg = s->cert->ciphers_raw;
1168 return (int)s->cert->ciphers_rawlen;
1171 return ssl_put_cipher_by_char(s,NULL,NULL);
1172 #ifndef OPENSSL_NO_DANE
1173 case SSL_CTRL_PULL_TLSA_RECORD:
1174 parg = SSL_get_tlsa_record_byname (parg,larg,s->version<0xF000?1:0);
1175 /* yes, fall through */
1176 case SSL_CTRL_SET_TLSA_RECORD:
1177 s->tlsa_record = parg;
1181 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1185 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1189 case SSL_CTRL_SET_MSG_CALLBACK:
1190 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1194 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1198 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1200 return ctx->sessions;
1203 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1206 /* For some cases with ctx == NULL perform syntax checks */
1211 #ifndef OPENSSL_NO_EC
1212 case SSL_CTRL_SET_CURVES_LIST:
1213 return tls1_set_curves_list(NULL, NULL, parg);
1215 case SSL_CTRL_SET_SIGALGS_LIST:
1216 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1217 return tls1_set_sigalgs_list(NULL, parg, 0);
1225 case SSL_CTRL_GET_READ_AHEAD:
1226 return(ctx->read_ahead);
1227 case SSL_CTRL_SET_READ_AHEAD:
1229 ctx->read_ahead=larg;
1232 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1233 ctx->msg_callback_arg = parg;
1236 case SSL_CTRL_GET_MAX_CERT_LIST:
1237 return(ctx->max_cert_list);
1238 case SSL_CTRL_SET_MAX_CERT_LIST:
1239 l=ctx->max_cert_list;
1240 ctx->max_cert_list=larg;
1243 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1244 l=ctx->session_cache_size;
1245 ctx->session_cache_size=larg;
1247 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1248 return(ctx->session_cache_size);
1249 case SSL_CTRL_SET_SESS_CACHE_MODE:
1250 l=ctx->session_cache_mode;
1251 ctx->session_cache_mode=larg;
1253 case SSL_CTRL_GET_SESS_CACHE_MODE:
1254 return(ctx->session_cache_mode);
1256 case SSL_CTRL_SESS_NUMBER:
1257 return(lh_SSL_SESSION_num_items(ctx->sessions));
1258 case SSL_CTRL_SESS_CONNECT:
1259 return(ctx->stats.sess_connect);
1260 case SSL_CTRL_SESS_CONNECT_GOOD:
1261 return(ctx->stats.sess_connect_good);
1262 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1263 return(ctx->stats.sess_connect_renegotiate);
1264 case SSL_CTRL_SESS_ACCEPT:
1265 return(ctx->stats.sess_accept);
1266 case SSL_CTRL_SESS_ACCEPT_GOOD:
1267 return(ctx->stats.sess_accept_good);
1268 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1269 return(ctx->stats.sess_accept_renegotiate);
1270 case SSL_CTRL_SESS_HIT:
1271 return(ctx->stats.sess_hit);
1272 case SSL_CTRL_SESS_CB_HIT:
1273 return(ctx->stats.sess_cb_hit);
1274 case SSL_CTRL_SESS_MISSES:
1275 return(ctx->stats.sess_miss);
1276 case SSL_CTRL_SESS_TIMEOUTS:
1277 return(ctx->stats.sess_timeout);
1278 case SSL_CTRL_SESS_CACHE_FULL:
1279 return(ctx->stats.sess_cache_full);
1280 case SSL_CTRL_OPTIONS:
1281 return(ctx->options|=larg);
1282 case SSL_CTRL_CLEAR_OPTIONS:
1283 return(ctx->options&=~larg);
1285 return(ctx->mode|=larg);
1286 case SSL_CTRL_CLEAR_MODE:
1287 return(ctx->mode&=~larg);
1288 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1289 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1291 ctx->max_send_fragment = larg;
1293 case SSL_CTRL_CERT_FLAGS:
1294 return(ctx->cert->cert_flags|=larg);
1295 case SSL_CTRL_CLEAR_CERT_FLAGS:
1296 return(ctx->cert->cert_flags &=~larg);
1298 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1302 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1306 case SSL_CTRL_SET_MSG_CALLBACK:
1307 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1311 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1315 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1323 return((l > 0)?1:-1);
1326 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1327 const SSL_CIPHER * const *bp)
1331 l=(*ap)->id-(*bp)->id;
1335 return((l > 0)?1:-1);
1338 /** return a STACK of the ciphers available for the SSL and in order of
1340 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1344 if (s->cipher_list != NULL)
1346 return(s->cipher_list);
1348 else if ((s->ctx != NULL) &&
1349 (s->ctx->cipher_list != NULL))
1351 return(s->ctx->cipher_list);
1357 /** return a STACK of the ciphers available for the SSL and in order of
1359 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1363 if (s->cipher_list_by_id != NULL)
1365 return(s->cipher_list_by_id);
1367 else if ((s->ctx != NULL) &&
1368 (s->ctx->cipher_list_by_id != NULL))
1370 return(s->ctx->cipher_list_by_id);
1376 /** The old interface to get the same thing as SSL_get_ciphers() */
1377 const char *SSL_get_cipher_list(const SSL *s,int n)
1380 STACK_OF(SSL_CIPHER) *sk;
1382 if (s == NULL) return(NULL);
1383 sk=SSL_get_ciphers(s);
1384 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1386 c=sk_SSL_CIPHER_value(sk,n);
1387 if (c == NULL) return(NULL);
1391 /** specify the ciphers to be used by default by the SSL_CTX */
1392 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1394 STACK_OF(SSL_CIPHER) *sk;
1396 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1397 &ctx->cipher_list_by_id,str, ctx->cert);
1398 /* ssl_create_cipher_list may return an empty stack if it
1399 * was unable to find a cipher matching the given rule string
1400 * (for example if the rule string specifies a cipher which
1401 * has been disabled). This is not an error as far as
1402 * ssl_create_cipher_list is concerned, and hence
1403 * ctx->cipher_list and ctx->cipher_list_by_id has been
1407 else if (sk_SSL_CIPHER_num(sk) == 0)
1409 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1415 /** specify the ciphers to be used by the SSL */
1416 int SSL_set_cipher_list(SSL *s,const char *str)
1418 STACK_OF(SSL_CIPHER) *sk;
1420 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1421 &s->cipher_list_by_id,str, s->cert);
1422 /* see comment in SSL_CTX_set_cipher_list */
1425 else if (sk_SSL_CIPHER_num(sk) == 0)
1427 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1433 /* works well for SSLv2, not so good for SSLv3 */
1434 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1437 STACK_OF(SSL_CIPHER) *sk;
1441 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1446 sk=s->session->ciphers;
1447 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1451 c=sk_SSL_CIPHER_value(sk,i);
1469 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1470 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1476 int no_scsv = s->renegotiate;
1477 /* Set disabled masks for this session */
1478 ssl_set_client_disabled(s);
1480 if (sk == NULL) return(0);
1483 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1485 c=sk_SSL_CIPHER_value(sk,i);
1486 /* Skip disabled ciphers */
1487 if (c->algorithm_ssl & ct->mask_ssl ||
1488 c->algorithm_mkey & ct->mask_k ||
1489 c->algorithm_auth & ct->mask_a)
1491 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1492 if (c->id == SSL3_CK_SCSV)
1500 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1503 /* If p == q, no ciphers and caller indicates an error. Otherwise
1504 * add SCSV if not renegotiating.
1506 if (p != q && !no_scsv)
1508 static SSL_CIPHER scsv =
1510 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1512 j = put_cb ? put_cb(&scsv,p) : ssl_put_cipher_by_char(s,&scsv,p);
1514 #ifdef OPENSSL_RI_DEBUG
1515 fprintf(stderr, "SCSV sent by client\n");
1522 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1523 STACK_OF(SSL_CIPHER) **skp)
1525 const SSL_CIPHER *c;
1526 STACK_OF(SSL_CIPHER) *sk;
1529 s->s3->send_connection_binding = 0;
1531 n=ssl_put_cipher_by_char(s,NULL,NULL);
1534 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1537 if ((skp == NULL) || (*skp == NULL))
1538 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1542 sk_SSL_CIPHER_zero(sk);
1545 if (s->cert->ciphers_raw)
1546 OPENSSL_free(s->cert->ciphers_raw);
1547 s->cert->ciphers_raw = BUF_memdup(p, num);
1548 if (s->cert->ciphers_raw == NULL)
1550 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1553 s->cert->ciphers_rawlen = (size_t)num;
1555 for (i=0; i<num; i+=n)
1557 /* Check for SCSV */
1558 if (s->s3 && (n != 3 || !p[0]) &&
1559 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1560 (p[n-1] == (SSL3_CK_SCSV & 0xff)))
1562 /* SCSV fatal if renegotiating */
1565 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1566 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1569 s->s3->send_connection_binding = 1;
1571 #ifdef OPENSSL_RI_DEBUG
1572 fprintf(stderr, "SCSV received by server\n");
1577 c=ssl_get_cipher_by_char(s,p);
1581 if (!sk_SSL_CIPHER_push(sk,c))
1583 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1593 if ((skp == NULL) || (*skp == NULL))
1594 sk_SSL_CIPHER_free(sk);
1599 #ifndef OPENSSL_NO_TLSEXT
1600 /** return a servername extension value if provided in Client Hello, or NULL.
1601 * So far, only host_name types are defined (RFC 3546).
1604 const char *SSL_get_servername(const SSL *s, const int type)
1606 if (type != TLSEXT_NAMETYPE_host_name)
1609 return s->session && !s->tlsext_hostname ?
1610 s->session->tlsext_hostname :
1614 int SSL_get_servername_type(const SSL *s)
1616 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1617 return TLSEXT_NAMETYPE_host_name;
1621 /* SSL_select_next_proto implements the standard protocol selection. It is
1622 * expected that this function is called from the callback set by
1623 * SSL_CTX_set_next_proto_select_cb.
1625 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
1626 * strings. The length byte itself is not included in the length. A byte
1627 * string of length 0 is invalid. No byte string may be truncated.
1629 * The current, but experimental algorithm for selecting the protocol is:
1631 * 1) If the server doesn't support NPN then this is indicated to the
1632 * callback. In this case, the client application has to abort the connection
1633 * or have a default application level protocol.
1635 * 2) If the server supports NPN, but advertises an empty list then the
1636 * client selects the first protcol in its list, but indicates via the
1637 * API that this fallback case was enacted.
1639 * 3) Otherwise, the client finds the first protocol in the server's list
1640 * that it supports and selects this protocol. This is because it's
1641 * assumed that the server has better information about which protocol
1642 * a client should use.
1644 * 4) If the client doesn't support any of the server's advertised
1645 * protocols, then this is treated the same as case 2.
1648 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or
1649 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1651 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen, const unsigned char *server, unsigned int server_len, const unsigned char *client, unsigned int client_len)
1654 const unsigned char *result;
1655 int status = OPENSSL_NPN_UNSUPPORTED;
1657 /* For each protocol in server preference order, see if we support it. */
1658 for (i = 0; i < server_len; )
1660 for (j = 0; j < client_len; )
1662 if (server[i] == client[j] &&
1663 memcmp(&server[i+1], &client[j+1], server[i]) == 0)
1665 /* We found a match */
1666 result = &server[i];
1667 status = OPENSSL_NPN_NEGOTIATED;
1677 /* There's no overlap between our protocols and the server's list. */
1679 status = OPENSSL_NPN_NO_OVERLAP;
1682 *out = (unsigned char *) result + 1;
1683 *outlen = result[0];
1687 # ifndef OPENSSL_NO_NEXTPROTONEG
1688 /* SSL_get0_next_proto_negotiated sets *data and *len to point to the client's
1689 * requested protocol for this connection and returns 0. If the client didn't
1690 * request any protocol, then *data is set to NULL.
1692 * Note that the client can request any protocol it chooses. The value returned
1693 * from this function need not be a member of the list of supported protocols
1694 * provided by the callback.
1696 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, unsigned *len)
1698 *data = s->next_proto_negotiated;
1702 *len = s->next_proto_negotiated_len;
1706 /* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a
1707 * TLS server needs a list of supported protocols for Next Protocol
1708 * Negotiation. The returned list must be in wire format. The list is returned
1709 * by setting |out| to point to it and |outlen| to its length. This memory will
1710 * not be modified, but one should assume that the SSL* keeps a reference to
1713 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. Otherwise, no
1714 * such extension will be included in the ServerHello. */
1715 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, const unsigned char **out, unsigned int *outlen, void *arg), void *arg)
1717 ctx->next_protos_advertised_cb = cb;
1718 ctx->next_protos_advertised_cb_arg = arg;
1721 /* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1722 * client needs to select a protocol from the server's provided list. |out|
1723 * must be set to point to the selected protocol (which may be within |in|).
1724 * The length of the protocol name must be written into |outlen|. The server's
1725 * advertised protocols are provided in |in| and |inlen|. The callback can
1726 * assume that |in| is syntactically valid.
1728 * The client must select a protocol. It is fatal to the connection if this
1729 * callback returns a value other than SSL_TLSEXT_ERR_OK.
1731 void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg), void *arg)
1733 ctx->next_proto_select_cb = cb;
1734 ctx->next_proto_select_cb_arg = arg;
1738 int SSL_CTX_set_custom_cli_ext(SSL_CTX *ctx, unsigned short ext_type,
1739 custom_cli_ext_first_cb_fn fn1,
1740 custom_cli_ext_second_cb_fn fn2, void* arg)
1743 custom_cli_ext_record* record;
1745 /* Check for duplicates */
1746 for (i=0; i < ctx->custom_cli_ext_records_count; i++)
1747 if (ext_type == ctx->custom_cli_ext_records[i].ext_type)
1750 ctx->custom_cli_ext_records = OPENSSL_realloc(ctx->custom_cli_ext_records,
1751 (ctx->custom_cli_ext_records_count + 1) *
1752 sizeof(custom_cli_ext_record));
1753 if (!ctx->custom_cli_ext_records) {
1754 ctx->custom_cli_ext_records_count = 0;
1757 ctx->custom_cli_ext_records_count++;
1758 record = &ctx->custom_cli_ext_records[ctx->custom_cli_ext_records_count - 1];
1759 record->ext_type = ext_type;
1766 int SSL_CTX_set_custom_srv_ext(SSL_CTX *ctx, unsigned short ext_type,
1767 custom_srv_ext_first_cb_fn fn1,
1768 custom_srv_ext_second_cb_fn fn2, void* arg)
1771 custom_srv_ext_record* record;
1773 /* Check for duplicates */
1774 for (i=0; i < ctx->custom_srv_ext_records_count; i++)
1775 if (ext_type == ctx->custom_srv_ext_records[i].ext_type)
1778 ctx->custom_srv_ext_records = OPENSSL_realloc(ctx->custom_srv_ext_records,
1779 (ctx->custom_srv_ext_records_count + 1) *
1780 sizeof(custom_srv_ext_record));
1781 if (!ctx->custom_srv_ext_records) {
1782 ctx->custom_srv_ext_records_count = 0;
1785 ctx->custom_srv_ext_records_count++;
1786 record = &ctx->custom_srv_ext_records[ctx->custom_srv_ext_records_count - 1];
1787 record->ext_type = ext_type;
1794 /* SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1795 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1796 * length-prefixed strings).
1798 * Returns 0 on success. */
1799 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char* protos,
1800 unsigned protos_len)
1802 if (ctx->alpn_client_proto_list)
1803 OPENSSL_free(ctx->alpn_client_proto_list);
1805 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1806 if (!ctx->alpn_client_proto_list)
1808 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
1809 ctx->alpn_client_proto_list_len = protos_len;
1814 /* SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1815 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1816 * length-prefixed strings).
1818 * Returns 0 on success. */
1819 int SSL_set_alpn_protos(SSL *ssl, const unsigned char* protos,
1820 unsigned protos_len)
1822 if (ssl->alpn_client_proto_list)
1823 OPENSSL_free(ssl->alpn_client_proto_list);
1825 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1826 if (!ssl->alpn_client_proto_list)
1828 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
1829 ssl->alpn_client_proto_list_len = protos_len;
1834 /* SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is called
1835 * during ClientHello processing in order to select an ALPN protocol from the
1836 * client's list of offered protocols. */
1837 void SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx,
1838 int (*cb) (SSL *ssl,
1839 const unsigned char **out,
1840 unsigned char *outlen,
1841 const unsigned char *in,
1846 ctx->alpn_select_cb = cb;
1847 ctx->alpn_select_cb_arg = arg;
1850 /* SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
1851 * On return it sets |*data| to point to |*len| bytes of protocol name (not
1852 * including the leading length-prefix byte). If the server didn't respond with
1853 * a negotiated protocol then |*len| will be zero. */
1854 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1859 *data = ssl->s3->alpn_selected;
1863 *len = ssl->s3->alpn_selected_len;
1866 int SSL_CTX_set_cli_supp_data(SSL_CTX *ctx,
1867 unsigned short supp_data_type,
1868 cli_supp_data_first_cb_fn fn1,
1869 cli_supp_data_second_cb_fn fn2, void* arg)
1872 cli_supp_data_record* record;
1874 /* Check for duplicates */
1875 for (i=0; i < ctx->cli_supp_data_records_count; i++)
1876 if (supp_data_type == ctx->cli_supp_data_records[i].supp_data_type)
1879 ctx->cli_supp_data_records = OPENSSL_realloc(ctx->cli_supp_data_records,
1880 (ctx->cli_supp_data_records_count+1) * sizeof(cli_supp_data_record));
1881 if (!ctx->cli_supp_data_records)
1883 ctx->cli_supp_data_records_count = 0;
1886 ctx->cli_supp_data_records_count++;
1887 record = &ctx->cli_supp_data_records[ctx->cli_supp_data_records_count - 1];
1888 record->supp_data_type = supp_data_type;
1895 int SSL_CTX_set_srv_supp_data(SSL_CTX *ctx,
1896 unsigned short supp_data_type,
1897 srv_supp_data_first_cb_fn fn1,
1898 srv_supp_data_second_cb_fn fn2, void* arg)
1901 srv_supp_data_record* record;
1903 /* Check for duplicates */
1904 for (i=0; i < ctx->srv_supp_data_records_count; i++)
1905 if (supp_data_type == ctx->srv_supp_data_records[i].supp_data_type)
1908 ctx->srv_supp_data_records = OPENSSL_realloc(ctx->srv_supp_data_records,
1909 (ctx->srv_supp_data_records_count+1) * sizeof(srv_supp_data_record));
1910 if (!ctx->srv_supp_data_records)
1912 ctx->srv_supp_data_records_count = 0;
1915 ctx->srv_supp_data_records_count++;
1916 record = &ctx->srv_supp_data_records[ctx->srv_supp_data_records_count - 1];
1917 record->supp_data_type = supp_data_type;
1925 #endif /* !OPENSSL_NO_TLSEXT */
1927 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1928 const char *label, size_t llen, const unsigned char *p, size_t plen,
1931 if (s->version < TLS1_VERSION)
1934 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1939 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1944 ((unsigned int) a->session_id[0] )|
1945 ((unsigned int) a->session_id[1]<< 8L)|
1946 ((unsigned long)a->session_id[2]<<16L)|
1947 ((unsigned long)a->session_id[3]<<24L);
1951 /* NB: If this function (or indeed the hash function which uses a sort of
1952 * coarser function than this one) is changed, ensure
1953 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1954 * able to construct an SSL_SESSION that will collide with any existing session
1955 * with a matching session ID. */
1956 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1958 if (a->ssl_version != b->ssl_version)
1960 if (a->session_id_length != b->session_id_length)
1962 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1965 /* These wrapper functions should remain rather than redeclaring
1966 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1967 * variable. The reason is that the functions aren't static, they're exposed via
1969 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1970 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1972 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1978 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1983 if (FIPS_mode() && (meth->version < TLS1_VERSION))
1985 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1990 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1992 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1995 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1999 memset(ret,0,sizeof(SSL_CTX));
2003 ret->cert_store=NULL;
2004 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
2005 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
2006 ret->session_cache_head=NULL;
2007 ret->session_cache_tail=NULL;
2009 /* We take the system default */
2010 ret->session_timeout=meth->get_timeout();
2012 ret->new_session_cb=0;
2013 ret->remove_session_cb=0;
2014 ret->get_session_cb=0;
2015 ret->generate_session_id=0;
2017 memset((char *)&ret->stats,0,sizeof(ret->stats));
2020 ret->quiet_shutdown=0;
2022 /* ret->cipher=NULL;*/
2023 /* ret->s2->challenge=NULL;
2024 ret->master_key=NULL;
2026 ret->s2->conn_id=NULL; */
2028 ret->info_callback=NULL;
2030 ret->app_verify_callback=0;
2031 ret->app_verify_arg=NULL;
2033 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
2035 ret->msg_callback=0;
2036 ret->msg_callback_arg=NULL;
2037 ret->verify_mode=SSL_VERIFY_NONE;
2039 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
2041 ret->sid_ctx_length=0;
2042 ret->default_verify_callback=NULL;
2043 if ((ret->cert=ssl_cert_new()) == NULL)
2046 ret->default_passwd_callback=0;
2047 ret->default_passwd_callback_userdata=NULL;
2048 ret->client_cert_cb=0;
2049 ret->app_gen_cookie_cb=0;
2050 ret->app_verify_cookie_cb=0;
2052 ret->sessions=lh_SSL_SESSION_new();
2053 if (ret->sessions == NULL) goto err;
2054 ret->cert_store=X509_STORE_new();
2055 if (ret->cert_store == NULL) goto err;
2057 ssl_create_cipher_list(ret->method,
2058 &ret->cipher_list,&ret->cipher_list_by_id,
2059 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, ret->cert);
2060 if (ret->cipher_list == NULL
2061 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
2063 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
2067 ret->param = X509_VERIFY_PARAM_new();
2071 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
2073 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
2076 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
2078 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
2081 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
2083 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
2087 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
2090 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
2092 ret->extra_certs=NULL;
2093 /* No compression for DTLS */
2094 if (meth->version != DTLS1_VERSION)
2095 ret->comp_methods=SSL_COMP_get_compression_methods();
2097 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
2099 #ifndef OPENSSL_NO_TLSEXT
2100 ret->tlsext_servername_callback = 0;
2101 ret->tlsext_servername_arg = NULL;
2102 /* Setup RFC4507 ticket keys */
2103 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
2104 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
2105 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
2106 ret->options |= SSL_OP_NO_TICKET;
2108 ret->tlsext_status_cb = 0;
2109 ret->tlsext_status_arg = NULL;
2111 # ifndef OPENSSL_NO_NEXTPROTONEG
2112 ret->next_protos_advertised_cb = 0;
2113 ret->next_proto_select_cb = 0;
2116 #ifndef OPENSSL_NO_PSK
2117 ret->psk_identity_hint=NULL;
2118 ret->psk_client_callback=NULL;
2119 ret->psk_server_callback=NULL;
2121 #ifndef OPENSSL_NO_SRP
2122 SSL_CTX_SRP_CTX_init(ret);
2124 ret->custom_cli_ext_records = NULL;
2125 ret->custom_cli_ext_records_count = 0;
2126 ret->custom_srv_ext_records = NULL;
2127 ret->custom_srv_ext_records_count = 0;
2128 ret->cli_supp_data_records = NULL;
2129 ret->cli_supp_data_records_count = 0;
2130 ret->srv_supp_data_records = NULL;
2131 ret->srv_supp_data_records_count = 0;
2132 #ifndef OPENSSL_NO_BUF_FREELISTS
2133 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
2134 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
2135 if (!ret->rbuf_freelist)
2137 ret->rbuf_freelist->chunklen = 0;
2138 ret->rbuf_freelist->len = 0;
2139 ret->rbuf_freelist->head = NULL;
2140 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
2141 if (!ret->wbuf_freelist)
2143 OPENSSL_free(ret->rbuf_freelist);
2146 ret->wbuf_freelist->chunklen = 0;
2147 ret->wbuf_freelist->len = 0;
2148 ret->wbuf_freelist->head = NULL;
2150 #ifndef OPENSSL_NO_ENGINE
2151 ret->client_cert_engine = NULL;
2152 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2153 #define eng_strx(x) #x
2154 #define eng_str(x) eng_strx(x)
2155 /* Use specific client engine automatically... ignore errors */
2158 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2162 ENGINE_load_builtin_engines();
2163 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2165 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
2170 /* Default is to connect to non-RI servers. When RI is more widely
2171 * deployed might change this.
2173 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
2177 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
2179 if (ret != NULL) SSL_CTX_free(ret);
2184 static void SSL_COMP_free(SSL_COMP *comp)
2185 { OPENSSL_free(comp); }
2188 #ifndef OPENSSL_NO_BUF_FREELISTS
2190 ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
2192 SSL3_BUF_FREELIST_ENTRY *ent, *next;
2193 for (ent = list->head; ent; ent = next)
2202 void SSL_CTX_free(SSL_CTX *a)
2206 if (a == NULL) return;
2208 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
2210 REF_PRINT("SSL_CTX",a);
2216 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
2222 X509_VERIFY_PARAM_free(a->param);
2225 * Free internal session cache. However: the remove_cb() may reference
2226 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2227 * after the sessions were flushed.
2228 * As the ex_data handling routines might also touch the session cache,
2229 * the most secure solution seems to be: empty (flush) the cache, then
2230 * free ex_data, then finally free the cache.
2231 * (See ticket [openssl.org #212].)
2233 if (a->sessions != NULL)
2234 SSL_CTX_flush_sessions(a,0);
2236 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
2238 if (a->sessions != NULL)
2239 lh_SSL_SESSION_free(a->sessions);
2241 if (a->cert_store != NULL)
2242 X509_STORE_free(a->cert_store);
2243 if (a->cipher_list != NULL)
2244 sk_SSL_CIPHER_free(a->cipher_list);
2245 if (a->cipher_list_by_id != NULL)
2246 sk_SSL_CIPHER_free(a->cipher_list_by_id);
2247 if (a->cert != NULL)
2248 ssl_cert_free(a->cert);
2249 if (a->client_CA != NULL)
2250 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
2251 if (a->extra_certs != NULL)
2252 sk_X509_pop_free(a->extra_certs,X509_free);
2253 #if 0 /* This should never be done, since it removes a global database */
2254 if (a->comp_methods != NULL)
2255 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
2257 a->comp_methods = NULL;
2260 if (a->srtp_profiles)
2261 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
2263 #ifndef OPENSSL_NO_PSK
2264 if (a->psk_identity_hint)
2265 OPENSSL_free(a->psk_identity_hint);
2267 #ifndef OPENSSL_NO_SRP
2268 SSL_CTX_SRP_CTX_free(a);
2270 #ifndef OPENSSL_NO_TLSEXT
2271 OPENSSL_free(a->custom_cli_ext_records);
2272 OPENSSL_free(a->custom_srv_ext_records);
2273 OPENSSL_free(a->cli_supp_data_records);
2274 OPENSSL_free(a->srv_supp_data_records);
2276 #ifndef OPENSSL_NO_ENGINE
2277 if (a->client_cert_engine)
2278 ENGINE_finish(a->client_cert_engine);
2281 #ifndef OPENSSL_NO_BUF_FREELISTS
2282 if (a->wbuf_freelist)
2283 ssl_buf_freelist_free(a->wbuf_freelist);
2284 if (a->rbuf_freelist)
2285 ssl_buf_freelist_free(a->rbuf_freelist);
2287 #ifndef OPENSSL_NO_TLSEXT
2288 # ifndef OPENSSL_NO_EC
2289 if (a->tlsext_ecpointformatlist)
2290 OPENSSL_free(a->tlsext_ecpointformatlist);
2291 if (a->tlsext_ellipticcurvelist)
2292 OPENSSL_free(a->tlsext_ellipticcurvelist);
2293 # endif /* OPENSSL_NO_EC */
2294 if (a->alpn_client_proto_list != NULL)
2295 OPENSSL_free(a->alpn_client_proto_list);
2301 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2303 ctx->default_passwd_callback=cb;
2306 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
2308 ctx->default_passwd_callback_userdata=u;
2311 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
2313 ctx->app_verify_callback=cb;
2314 ctx->app_verify_arg=arg;
2317 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
2319 ctx->verify_mode=mode;
2320 ctx->default_verify_callback=cb;
2323 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
2325 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2328 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb)(SSL *ssl, void *arg), void *arg)
2330 ssl_cert_set_cert_cb(c->cert, cb, arg);
2333 void SSL_set_cert_cb(SSL *s, int (*cb)(SSL *ssl, void *arg), void *arg)
2335 ssl_cert_set_cert_cb(s->cert, cb, arg);
2338 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
2341 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
2342 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
2343 int rsa_tmp_export,dh_tmp_export,kl;
2344 unsigned long mask_k,mask_a,emask_k,emask_a;
2345 #ifndef OPENSSL_NO_ECDSA
2346 int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
2348 #ifndef OPENSSL_NO_ECDH
2349 int have_ecdh_tmp, ecdh_ok;
2351 #ifndef OPENSSL_NO_EC
2353 EVP_PKEY *ecc_pkey = NULL;
2354 int signature_nid = 0, pk_nid = 0, md_nid = 0;
2356 if (c == NULL) return;
2358 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
2360 #ifndef OPENSSL_NO_RSA
2361 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2362 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
2363 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
2365 rsa_tmp=rsa_tmp_export=0;
2367 #ifndef OPENSSL_NO_DH
2368 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
2369 dh_tmp_export=(c->dh_tmp_cb != NULL ||
2370 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
2372 dh_tmp=dh_tmp_export=0;
2375 #ifndef OPENSSL_NO_ECDH
2376 have_ecdh_tmp=(c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
2378 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
2379 rsa_enc= cpk->valid_flags & CERT_PKEY_VALID;
2380 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2381 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2382 rsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2383 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2384 dsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2385 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
2386 dh_rsa= cpk->valid_flags & CERT_PKEY_VALID;
2387 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2388 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
2389 /* FIX THIS EAY EAY EAY */
2390 dh_dsa= cpk->valid_flags & CERT_PKEY_VALID;
2391 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2392 cpk= &(c->pkeys[SSL_PKEY_ECC]);
2393 #ifndef OPENSSL_NO_EC
2394 have_ecc_cert= cpk->valid_flags & CERT_PKEY_VALID;
2404 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2405 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
2406 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
2409 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2410 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2411 mask_k |= SSL_kGOST;
2412 mask_a |= SSL_aGOST01;
2414 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2415 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2416 mask_k |= SSL_kGOST;
2417 mask_a |= SSL_aGOST94;
2420 if (rsa_enc || (rsa_tmp && rsa_sign))
2422 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2426 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2427 if ( (dh_tmp || dh_rsa || dh_dsa) &&
2428 (rsa_enc || rsa_sign || dsa_sign))
2430 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
2431 (rsa_enc || rsa_sign || dsa_sign))
2441 if (dh_rsa) mask_k|=SSL_kDHr;
2442 if (dh_rsa_export) emask_k|=SSL_kDHr;
2444 if (dh_dsa) mask_k|=SSL_kDHd;
2445 if (dh_dsa_export) emask_k|=SSL_kDHd;
2447 if (emask_k & (SSL_kDHr|SSL_kDHd))
2450 if (rsa_enc || rsa_sign)
2465 #ifndef OPENSSL_NO_KRB5
2472 /* An ECC certificate may be usable for ECDH and/or
2473 * ECDSA cipher suites depending on the key usage extension.
2475 #ifndef OPENSSL_NO_EC
2478 cpk = &c->pkeys[SSL_PKEY_ECC];
2480 /* This call populates extension flags (ex_flags) */
2481 X509_check_purpose(x, -1, 0);
2482 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2483 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2484 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2485 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2486 if (!(cpk->valid_flags & CERT_PKEY_SIGN))
2488 ecc_pkey = X509_get_pubkey(x);
2489 ecc_pkey_size = (ecc_pkey != NULL) ?
2490 EVP_PKEY_bits(ecc_pkey) : 0;
2491 EVP_PKEY_free(ecc_pkey);
2492 if ((x->sig_alg) && (x->sig_alg->algorithm))
2494 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2495 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2497 #ifndef OPENSSL_NO_ECDH
2501 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa)
2505 if (ecc_pkey_size <= 163)
2507 emask_k|=SSL_kECDHr;
2512 if (pk_nid == NID_X9_62_id_ecPublicKey)
2516 if (ecc_pkey_size <= 163)
2518 emask_k|=SSL_kECDHe;
2524 #ifndef OPENSSL_NO_ECDSA
2528 emask_a|=SSL_aECDSA;
2534 #ifndef OPENSSL_NO_ECDH
2538 emask_k|=SSL_kEECDH;
2542 #ifndef OPENSSL_NO_PSK
2545 emask_k |= SSL_kPSK;
2546 emask_a |= SSL_aPSK;
2551 c->export_mask_k=emask_k;
2552 c->export_mask_a=emask_a;
2556 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2557 #define ku_reject(x, usage) \
2558 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2560 #ifndef OPENSSL_NO_EC
2562 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2564 unsigned long alg_k, alg_a;
2565 EVP_PKEY *pkey = NULL;
2567 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2568 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2570 alg_k = cs->algorithm_mkey;
2571 alg_a = cs->algorithm_auth;
2573 if (SSL_C_IS_EXPORT(cs))
2575 /* ECDH key length in export ciphers must be <= 163 bits */
2576 pkey = X509_get_pubkey(x);
2577 if (pkey == NULL) return 0;
2578 keysize = EVP_PKEY_bits(pkey);
2579 EVP_PKEY_free(pkey);
2580 if (keysize > 163) return 0;
2583 /* This call populates the ex_flags field correctly */
2584 X509_check_purpose(x, -1, 0);
2585 if ((x->sig_alg) && (x->sig_alg->algorithm))
2587 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2588 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2590 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
2592 /* key usage, if present, must allow key agreement */
2593 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
2595 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2598 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION)
2600 /* signature alg must be ECDSA */
2601 if (pk_nid != NID_X9_62_id_ecPublicKey)
2603 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2607 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION)
2609 /* signature alg must be RSA */
2611 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa)
2613 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2618 if (alg_a & SSL_aECDSA)
2620 /* key usage, if present, must allow signing */
2621 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
2623 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2628 return 1; /* all checks are ok */
2633 static int ssl_get_server_cert_index(const SSL *s)
2636 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2637 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2638 idx = SSL_PKEY_RSA_SIGN;
2640 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX,ERR_R_INTERNAL_ERROR);
2644 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s)
2650 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2652 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2653 /* Broken protocol test: return last used certificate: which may
2654 * mismatch the one expected.
2656 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2660 i = ssl_get_server_cert_index(s);
2662 /* This may or may not be an error. */
2667 return &c->pkeys[i];
2670 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher, const EVP_MD **pmd)
2672 unsigned long alg_a;
2676 alg_a = cipher->algorithm_auth;
2679 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2680 /* Broken protocol test: use last key: which may
2681 * mismatch the one expected.
2683 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2684 idx = c->key - c->pkeys;
2688 if ((alg_a & SSL_aDSS) &&
2689 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2690 idx = SSL_PKEY_DSA_SIGN;
2691 else if (alg_a & SSL_aRSA)
2693 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2694 idx = SSL_PKEY_RSA_SIGN;
2695 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2696 idx = SSL_PKEY_RSA_ENC;
2698 else if ((alg_a & SSL_aECDSA) &&
2699 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2703 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2707 *pmd = c->pkeys[idx].digest;
2708 return c->pkeys[idx].privatekey;
2711 #ifndef OPENSSL_NO_TLSEXT
2712 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2713 size_t *serverinfo_length)
2717 *serverinfo_length = 0;
2720 i = ssl_get_server_cert_index(s);
2724 if (c->pkeys[i].serverinfo == NULL)
2727 *serverinfo = c->pkeys[i].serverinfo;
2728 *serverinfo_length = c->pkeys[i].serverinfo_length;
2733 void ssl_update_cache(SSL *s,int mode)
2737 /* If the session_id_length is 0, we are not supposed to cache it,
2738 * and it would be rather hard to do anyway :-) */
2739 if (s->session->session_id_length == 0) return;
2741 i=s->session_ctx->session_cache_mode;
2742 if ((i & mode) && (!s->hit)
2743 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2744 || SSL_CTX_add_session(s->session_ctx,s->session))
2745 && (s->session_ctx->new_session_cb != NULL))
2747 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2748 if (!s->session_ctx->new_session_cb(s,s->session))
2749 SSL_SESSION_free(s->session);
2752 /* auto flush every 255 connections */
2753 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2754 ((i & mode) == mode))
2756 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2757 ?s->session_ctx->stats.sess_connect_good
2758 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2760 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2765 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2770 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2775 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2780 if (s->method != meth)
2782 if (s->handshake_func != NULL)
2783 conn=(s->handshake_func == s->method->ssl_connect);
2785 if (s->method->version == meth->version)
2789 s->method->ssl_free(s);
2791 ret=s->method->ssl_new(s);
2795 s->handshake_func=meth->ssl_connect;
2797 s->handshake_func=meth->ssl_accept;
2802 int SSL_get_error(const SSL *s,int i)
2808 if (i > 0) return(SSL_ERROR_NONE);
2810 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2811 * etc, where we do encode the error */
2812 if ((l=ERR_peek_error()) != 0)
2814 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2815 return(SSL_ERROR_SYSCALL);
2817 return(SSL_ERROR_SSL);
2820 if ((i < 0) && SSL_want_read(s))
2822 bio=SSL_get_rbio(s);
2823 if (BIO_should_read(bio))
2824 return(SSL_ERROR_WANT_READ);
2825 else if (BIO_should_write(bio))
2826 /* This one doesn't make too much sense ... We never try
2827 * to write to the rbio, and an application program where
2828 * rbio and wbio are separate couldn't even know what it
2830 * However if we ever set s->rwstate incorrectly
2831 * (so that we have SSL_want_read(s) instead of
2832 * SSL_want_write(s)) and rbio and wbio *are* the same,
2833 * this test works around that bug; so it might be safer
2835 return(SSL_ERROR_WANT_WRITE);
2836 else if (BIO_should_io_special(bio))
2838 reason=BIO_get_retry_reason(bio);
2839 if (reason == BIO_RR_CONNECT)
2840 return(SSL_ERROR_WANT_CONNECT);
2841 else if (reason == BIO_RR_ACCEPT)
2842 return(SSL_ERROR_WANT_ACCEPT);
2844 return(SSL_ERROR_SYSCALL); /* unknown */
2848 if ((i < 0) && SSL_want_write(s))
2850 bio=SSL_get_wbio(s);
2851 if (BIO_should_write(bio))
2852 return(SSL_ERROR_WANT_WRITE);
2853 else if (BIO_should_read(bio))
2854 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2855 return(SSL_ERROR_WANT_READ);
2856 else if (BIO_should_io_special(bio))
2858 reason=BIO_get_retry_reason(bio);
2859 if (reason == BIO_RR_CONNECT)
2860 return(SSL_ERROR_WANT_CONNECT);
2861 else if (reason == BIO_RR_ACCEPT)
2862 return(SSL_ERROR_WANT_ACCEPT);
2864 return(SSL_ERROR_SYSCALL);
2867 if ((i < 0) && SSL_want_x509_lookup(s))
2869 return(SSL_ERROR_WANT_X509_LOOKUP);
2874 if (s->version == SSL2_VERSION)
2876 /* assume it is the socket being closed */
2877 return(SSL_ERROR_ZERO_RETURN);
2881 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2882 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2883 return(SSL_ERROR_ZERO_RETURN);
2886 return(SSL_ERROR_SYSCALL);
2889 int SSL_do_handshake(SSL *s)
2893 if (s->handshake_func == NULL)
2895 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2899 s->method->ssl_renegotiate_check(s);
2901 if (SSL_in_init(s) || SSL_in_before(s))
2903 ret=s->handshake_func(s);
2908 /* For the next 2 functions, SSL_clear() sets shutdown and so
2909 * one of these calls will reset it */
2910 void SSL_set_accept_state(SSL *s)
2914 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2915 s->handshake_func=s->method->ssl_accept;
2916 /* clear the current cipher */
2917 ssl_clear_cipher_ctx(s);
2918 ssl_clear_hash_ctx(&s->read_hash);
2919 ssl_clear_hash_ctx(&s->write_hash);
2922 void SSL_set_connect_state(SSL *s)
2926 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2927 s->handshake_func=s->method->ssl_connect;
2928 /* clear the current cipher */
2929 ssl_clear_cipher_ctx(s);
2930 ssl_clear_hash_ctx(&s->read_hash);
2931 ssl_clear_hash_ctx(&s->write_hash);
2934 int ssl_undefined_function(SSL *s)
2936 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2940 int ssl_undefined_void_function(void)
2942 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2946 int ssl_undefined_const_function(const SSL *s)
2948 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2952 SSL_METHOD *ssl_bad_method(int ver)
2954 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2958 const char *SSL_get_version(const SSL *s)
2960 if (s->version == TLS1_2_VERSION)
2962 else if (s->version == TLS1_1_VERSION)
2964 else if (s->version == TLS1_VERSION)
2966 else if (s->version == SSL3_VERSION)
2968 else if (s->version == SSL2_VERSION)
2974 SSL *SSL_dup(SSL *s)
2976 STACK_OF(X509_NAME) *sk;
2981 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2984 ret->version = s->version;
2985 ret->type = s->type;
2986 ret->method = s->method;
2988 if (s->session != NULL)
2990 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2991 SSL_copy_session_id(ret,s);
2995 /* No session has been established yet, so we have to expect
2996 * that s->cert or ret->cert will be changed later --
2997 * they should not both point to the same object,
2998 * and thus we can't use SSL_copy_session_id. */
3000 ret->method->ssl_free(ret);
3001 ret->method = s->method;
3002 ret->method->ssl_new(ret);
3004 if (s->cert != NULL)
3006 if (ret->cert != NULL)
3008 ssl_cert_free(ret->cert);
3010 ret->cert = ssl_cert_dup(s->cert);
3011 if (ret->cert == NULL)
3015 SSL_set_session_id_context(ret,
3016 s->sid_ctx, s->sid_ctx_length);
3019 ret->options=s->options;
3021 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
3022 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
3023 ret->msg_callback = s->msg_callback;
3024 ret->msg_callback_arg = s->msg_callback_arg;
3025 SSL_set_verify(ret,SSL_get_verify_mode(s),
3026 SSL_get_verify_callback(s));
3027 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
3028 ret->generate_session_id = s->generate_session_id;
3030 SSL_set_info_callback(ret,SSL_get_info_callback(s));
3032 ret->debug=s->debug;
3034 /* copy app data, a little dangerous perhaps */
3035 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
3038 /* setup rbio, and wbio */
3039 if (s->rbio != NULL)
3041 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
3044 if (s->wbio != NULL)
3046 if (s->wbio != s->rbio)
3048 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
3052 ret->wbio=ret->rbio;
3054 ret->rwstate = s->rwstate;
3055 ret->in_handshake = s->in_handshake;
3056 ret->handshake_func = s->handshake_func;
3057 ret->server = s->server;
3058 ret->renegotiate = s->renegotiate;
3059 ret->new_session = s->new_session;
3060 ret->quiet_shutdown = s->quiet_shutdown;
3061 ret->shutdown=s->shutdown;
3062 ret->state=s->state; /* SSL_dup does not really work at any state, though */
3063 ret->rstate=s->rstate;
3064 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
3067 X509_VERIFY_PARAM_inherit(ret->param, s->param);
3069 /* dup the cipher_list and cipher_list_by_id stacks */
3070 if (s->cipher_list != NULL)
3072 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
3075 if (s->cipher_list_by_id != NULL)
3076 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
3080 /* Dup the client_CA list */
3081 if (s->client_CA != NULL)
3083 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
3085 for (i=0; i<sk_X509_NAME_num(sk); i++)
3087 xn=sk_X509_NAME_value(sk,i);
3088 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
3099 if (ret != NULL) SSL_free(ret);
3105 void ssl_clear_cipher_ctx(SSL *s)
3107 if (s->enc_read_ctx != NULL)
3109 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
3110 OPENSSL_free(s->enc_read_ctx);
3111 s->enc_read_ctx=NULL;
3113 if (s->enc_write_ctx != NULL)
3115 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
3116 OPENSSL_free(s->enc_write_ctx);
3117 s->enc_write_ctx=NULL;
3119 #ifndef OPENSSL_NO_COMP
3120 if (s->expand != NULL)
3122 COMP_CTX_free(s->expand);
3125 if (s->compress != NULL)
3127 COMP_CTX_free(s->compress);
3133 X509 *SSL_get_certificate(const SSL *s)
3135 if (s->cert != NULL)
3136 return(s->cert->key->x509);
3141 EVP_PKEY *SSL_get_privatekey(const SSL *s)
3143 if (s->cert != NULL)
3144 return(s->cert->key->privatekey);
3149 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
3151 if (ctx->cert != NULL)
3152 return ctx->cert->key->x509;
3157 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
3159 if (ctx->cert != NULL)
3160 return ctx->cert->key->privatekey;
3165 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
3167 if ((s->session != NULL) && (s->session->cipher != NULL))
3168 return(s->session->cipher);
3171 #ifdef OPENSSL_NO_COMP
3172 const void *SSL_get_current_compression(SSL *s)
3176 const void *SSL_get_current_expansion(SSL *s)
3182 const COMP_METHOD *SSL_get_current_compression(SSL *s)
3184 if (s->compress != NULL)
3185 return(s->compress->meth);
3189 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
3191 if (s->expand != NULL)
3192 return(s->expand->meth);
3197 int ssl_init_wbio_buffer(SSL *s,int push)
3201 if (s->bbio == NULL)
3203 bbio=BIO_new(BIO_f_buffer());
3204 if (bbio == NULL) return(0);
3210 if (s->bbio == s->wbio)
3211 s->wbio=BIO_pop(s->wbio);
3213 (void)BIO_reset(bbio);
3214 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
3215 if (!BIO_set_read_buffer_size(bbio,1))
3217 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
3222 if (s->wbio != bbio)
3223 s->wbio=BIO_push(bbio,s->wbio);
3227 if (s->wbio == bbio)
3228 s->wbio=BIO_pop(bbio);
3233 void ssl_free_wbio_buffer(SSL *s)
3235 if (s->bbio == NULL) return;
3237 if (s->bbio == s->wbio)
3239 /* remove buffering */
3240 s->wbio=BIO_pop(s->wbio);
3241 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
3242 assert(s->wbio != NULL);
3249 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
3251 ctx->quiet_shutdown=mode;
3254 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
3256 return(ctx->quiet_shutdown);
3259 void SSL_set_quiet_shutdown(SSL *s,int mode)
3261 s->quiet_shutdown=mode;
3264 int SSL_get_quiet_shutdown(const SSL *s)
3266 return(s->quiet_shutdown);
3269 void SSL_set_shutdown(SSL *s,int mode)
3274 int SSL_get_shutdown(const SSL *s)
3276 return(s->shutdown);
3279 int SSL_version(const SSL *s)
3284 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
3289 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
3291 if (ssl->ctx == ctx)
3293 #ifndef OPENSSL_NO_TLSEXT
3295 ctx = ssl->initial_ctx;
3297 if (ssl->cert != NULL)
3298 ssl_cert_free(ssl->cert);
3299 ssl->cert = ssl_cert_dup(ctx->cert);
3300 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
3301 if (ssl->ctx != NULL)
3302 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3307 #ifndef OPENSSL_NO_STDIO
3308 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3310 return(X509_STORE_set_default_paths(ctx->cert_store));
3313 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3316 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
3320 void SSL_set_info_callback(SSL *ssl,
3321 void (*cb)(const SSL *ssl,int type,int val))
3323 ssl->info_callback=cb;
3326 /* One compiler (Diab DCC) doesn't like argument names in returned
3327 function pointer. */
3328 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
3330 return ssl->info_callback;
3333 int SSL_state(const SSL *ssl)
3338 void SSL_set_state(SSL *ssl, int state)
3343 void SSL_set_verify_result(SSL *ssl,long arg)
3345 ssl->verify_result=arg;
3348 long SSL_get_verify_result(const SSL *ssl)
3350 return(ssl->verify_result);
3353 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3354 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3356 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
3357 new_func, dup_func, free_func);
3360 int SSL_set_ex_data(SSL *s,int idx,void *arg)
3362 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3365 void *SSL_get_ex_data(const SSL *s,int idx)
3367 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3370 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3371 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3373 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3374 new_func, dup_func, free_func);
3377 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
3379 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3382 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
3384 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3392 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3394 return(ctx->cert_store);
3397 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
3399 if (ctx->cert_store != NULL)
3400 X509_STORE_free(ctx->cert_store);
3401 ctx->cert_store=store;
3404 int SSL_want(const SSL *s)
3410 * \brief Set the callback for generating temporary RSA keys.
3411 * \param ctx the SSL context.
3412 * \param cb the callback
3415 #ifndef OPENSSL_NO_RSA
3416 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
3420 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3423 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
3427 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3433 * \brief The RSA temporary key callback function.
3434 * \param ssl the SSL session.
3435 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3436 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3437 * of the required key in bits.
3438 * \return the temporary RSA key.
3439 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3442 RSA *cb(SSL *ssl,int is_export,int keylength)
3447 * \brief Set the callback for generating temporary DH keys.
3448 * \param ctx the SSL context.
3449 * \param dh the callback
3452 #ifndef OPENSSL_NO_DH
3453 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
3456 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3459 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
3462 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3466 #ifndef OPENSSL_NO_ECDH
3467 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3470 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3473 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3476 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3480 #ifndef OPENSSL_NO_PSK
3481 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3483 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3485 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3488 if (ctx->psk_identity_hint != NULL)
3489 OPENSSL_free(ctx->psk_identity_hint);
3490 if (identity_hint != NULL)
3492 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3493 if (ctx->psk_identity_hint == NULL)
3497 ctx->psk_identity_hint = NULL;
3501 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3506 if (s->session == NULL)
3507 return 1; /* session not created yet, ignored */
3509 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3511 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3514 if (s->session->psk_identity_hint != NULL)
3515 OPENSSL_free(s->session->psk_identity_hint);
3516 if (identity_hint != NULL)
3518 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3519 if (s->session->psk_identity_hint == NULL)
3523 s->session->psk_identity_hint = NULL;
3527 const char *SSL_get_psk_identity_hint(const SSL *s)
3529 if (s == NULL || s->session == NULL)
3531 return(s->session->psk_identity_hint);
3534 const char *SSL_get_psk_identity(const SSL *s)
3536 if (s == NULL || s->session == NULL)
3538 return(s->session->psk_identity);
3541 void SSL_set_psk_client_callback(SSL *s,
3542 unsigned int (*cb)(SSL *ssl, const char *hint,
3543 char *identity, unsigned int max_identity_len, unsigned char *psk,
3544 unsigned int max_psk_len))
3546 s->psk_client_callback = cb;
3549 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3550 unsigned int (*cb)(SSL *ssl, const char *hint,
3551 char *identity, unsigned int max_identity_len, unsigned char *psk,
3552 unsigned int max_psk_len))
3554 ctx->psk_client_callback = cb;
3557 void SSL_set_psk_server_callback(SSL *s,
3558 unsigned int (*cb)(SSL *ssl, const char *identity,
3559 unsigned char *psk, unsigned int max_psk_len))
3561 s->psk_server_callback = cb;
3564 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3565 unsigned int (*cb)(SSL *ssl, const char *identity,
3566 unsigned char *psk, unsigned int max_psk_len))
3568 ctx->psk_server_callback = cb;
3572 void SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))
3574 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3576 void SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))
3578 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3581 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3582 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
3583 * any. If EVP_MD pointer is passed, initializes ctx with this md
3584 * Returns newly allocated ctx;
3587 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
3589 ssl_clear_hash_ctx(hash);
3590 *hash = EVP_MD_CTX_create();
3591 if (md) EVP_DigestInit_ex(*hash,md,NULL);
3594 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3597 if (*hash) EVP_MD_CTX_destroy(*hash);
3601 void SSL_set_debug(SSL *s, int debug)
3606 int SSL_cache_hit(SSL *s)
3611 int SSL_is_server(SSL *s)
3616 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3617 #include "../crypto/bio/bss_file.c"
3620 IMPLEMENT_STACK_OF(SSL_CIPHER)
3621 IMPLEMENT_STACK_OF(SSL_COMP)
3622 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,