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;
420 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
424 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
425 unsigned int sid_ctx_len)
427 if(sid_ctx_len > sizeof ctx->sid_ctx)
429 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
432 ctx->sid_ctx_length=sid_ctx_len;
433 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
438 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
439 unsigned int sid_ctx_len)
441 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
443 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
446 ssl->sid_ctx_length=sid_ctx_len;
447 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
452 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
454 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
455 ctx->generate_session_id = cb;
456 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
460 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
462 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
463 ssl->generate_session_id = cb;
464 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
468 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
471 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
472 * we can "construct" a session to give us the desired check - ie. to
473 * find if there's a session in the hash table that would conflict with
474 * any new session built out of this id/id_len and the ssl_version in
475 * use by this SSL. */
478 if(id_len > sizeof r.session_id)
481 r.ssl_version = ssl->version;
482 r.session_id_length = id_len;
483 memcpy(r.session_id, id, id_len);
484 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
485 * callback is calling us to check the uniqueness of a shorter ID, it
486 * must be compared as a padded-out ID because that is what it will be
487 * converted to when the callback has finished choosing it. */
488 if((r.ssl_version == SSL2_VERSION) &&
489 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
491 memset(r.session_id + id_len, 0,
492 SSL2_SSL_SESSION_ID_LENGTH - id_len);
493 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
496 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
497 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
498 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
502 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
504 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
507 int SSL_set_purpose(SSL *s, int purpose)
509 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
512 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
514 return X509_VERIFY_PARAM_set_trust(s->param, trust);
517 int SSL_set_trust(SSL *s, int trust)
519 return X509_VERIFY_PARAM_set_trust(s->param, trust);
522 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
524 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
527 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
529 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
532 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
537 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
542 void SSL_certs_clear(SSL *s)
544 ssl_cert_clear_certs(s->cert);
547 void SSL_free(SSL *s)
554 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
562 fprintf(stderr,"SSL_free, bad reference count\n");
568 X509_VERIFY_PARAM_free(s->param);
570 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
574 /* If the buffering BIO is in place, pop it off */
575 if (s->bbio == s->wbio)
577 s->wbio=BIO_pop(s->wbio);
583 BIO_free_all(s->rbio);
584 if ((s->wbio != NULL) && (s->wbio != s->rbio))
585 BIO_free_all(s->wbio);
587 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
589 /* add extra stuff */
590 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
591 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
593 /* Make the next call work :-) */
594 if (s->session != NULL)
596 ssl_clear_bad_session(s);
597 SSL_SESSION_free(s->session);
600 ssl_clear_cipher_ctx(s);
601 ssl_clear_hash_ctx(&s->read_hash);
602 ssl_clear_hash_ctx(&s->write_hash);
604 if (s->cert != NULL) ssl_cert_free(s->cert);
605 /* Free up if allocated */
607 #ifndef OPENSSL_NO_TLSEXT
608 if (s->tlsext_hostname)
609 OPENSSL_free(s->tlsext_hostname);
610 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx);
611 #ifndef OPENSSL_NO_EC
612 if (s->tlsext_ecpointformatlist) OPENSSL_free(s->tlsext_ecpointformatlist);
613 if (s->tlsext_ellipticcurvelist) OPENSSL_free(s->tlsext_ellipticcurvelist);
614 #endif /* OPENSSL_NO_EC */
615 if (s->tlsext_opaque_prf_input) OPENSSL_free(s->tlsext_opaque_prf_input);
616 if (s->tlsext_ocsp_exts)
617 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
618 X509_EXTENSION_free);
619 if (s->tlsext_ocsp_ids)
620 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
621 if (s->tlsext_ocsp_resp)
622 OPENSSL_free(s->tlsext_ocsp_resp);
623 if (s->alpn_client_proto_list)
624 OPENSSL_free(s->alpn_client_proto_list);
627 if (s->client_CA != NULL)
628 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
630 if (s->method != NULL) s->method->ssl_free(s);
632 if (s->ctx) SSL_CTX_free(s->ctx);
634 #ifndef OPENSSL_NO_KRB5
635 if (s->kssl_ctx != NULL)
636 kssl_ctx_free(s->kssl_ctx);
637 #endif /* OPENSSL_NO_KRB5 */
639 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
640 if (s->next_proto_negotiated)
641 OPENSSL_free(s->next_proto_negotiated);
644 if (s->srtp_profiles)
645 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
650 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
652 /* If the output buffering BIO is still in place, remove it
656 if (s->wbio == s->bbio)
658 s->wbio=s->wbio->next_bio;
659 s->bbio->next_bio=NULL;
662 if ((s->rbio != NULL) && (s->rbio != rbio))
663 BIO_free_all(s->rbio);
664 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
665 BIO_free_all(s->wbio);
670 BIO *SSL_get_rbio(const SSL *s)
673 BIO *SSL_get_wbio(const SSL *s)
676 int SSL_get_fd(const SSL *s)
678 return(SSL_get_rfd(s));
681 int SSL_get_rfd(const SSL *s)
687 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
693 int SSL_get_wfd(const SSL *s)
699 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
705 #ifndef OPENSSL_NO_SOCK
706 int SSL_set_fd(SSL *s,int fd)
711 bio=BIO_new(BIO_s_socket());
715 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
718 BIO_set_fd(bio,fd,BIO_NOCLOSE);
719 SSL_set_bio(s,bio,bio);
725 int SSL_set_wfd(SSL *s,int fd)
730 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
731 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
733 bio=BIO_new(BIO_s_socket());
736 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
737 BIO_set_fd(bio,fd,BIO_NOCLOSE);
738 SSL_set_bio(s,SSL_get_rbio(s),bio);
741 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
747 int SSL_set_rfd(SSL *s,int fd)
752 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
753 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
755 bio=BIO_new(BIO_s_socket());
759 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
762 BIO_set_fd(bio,fd,BIO_NOCLOSE);
763 SSL_set_bio(s,bio,SSL_get_wbio(s));
766 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
774 /* return length of latest Finished message we sent, copy to 'buf' */
775 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
781 ret = s->s3->tmp.finish_md_len;
784 memcpy(buf, s->s3->tmp.finish_md, count);
789 /* return length of latest Finished message we expected, copy to 'buf' */
790 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
796 ret = s->s3->tmp.peer_finish_md_len;
799 memcpy(buf, s->s3->tmp.peer_finish_md, count);
805 int SSL_get_verify_mode(const SSL *s)
807 return(s->verify_mode);
810 int SSL_get_verify_depth(const SSL *s)
812 return X509_VERIFY_PARAM_get_depth(s->param);
815 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
817 return(s->verify_callback);
820 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
822 return(ctx->verify_mode);
825 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
827 return X509_VERIFY_PARAM_get_depth(ctx->param);
830 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
832 return(ctx->default_verify_callback);
835 void SSL_set_verify(SSL *s,int mode,
836 int (*callback)(int ok,X509_STORE_CTX *ctx))
839 if (callback != NULL)
840 s->verify_callback=callback;
843 void SSL_set_verify_depth(SSL *s,int depth)
845 X509_VERIFY_PARAM_set_depth(s->param, depth);
848 void SSL_set_read_ahead(SSL *s,int yes)
853 int SSL_get_read_ahead(const SSL *s)
855 return(s->read_ahead);
858 int SSL_pending(const SSL *s)
860 /* SSL_pending cannot work properly if read-ahead is enabled
861 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
862 * and it is impossible to fix since SSL_pending cannot report
863 * errors that may be observed while scanning the new data.
864 * (Note that SSL_pending() is often used as a boolean value,
865 * so we'd better not return -1.)
867 return(s->method->ssl_pending(s));
870 X509 *SSL_get_peer_certificate(const SSL *s)
874 if ((s == NULL) || (s->session == NULL))
879 if (r == NULL) return(r);
881 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
886 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
890 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
893 r=s->session->sess_cert->cert_chain;
895 /* If we are a client, cert_chain includes the peer's own
896 * certificate; if we are a server, it does not. */
901 /* Now in theory, since the calling process own 't' it should be safe to
902 * modify. We need to be able to read f without being hassled */
903 void SSL_copy_session_id(SSL *t,const SSL *f)
907 /* Do we need to to SSL locking? */
908 SSL_set_session(t,SSL_get_session(f));
910 /* what if we are setup as SSLv2 but want to talk SSLv3 or
912 if (t->method != f->method)
914 t->method->ssl_free(t); /* cleanup current */
915 t->method=f->method; /* change method */
916 t->method->ssl_new(t); /* setup new */
922 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
927 if (tmp != NULL) ssl_cert_free(tmp);
928 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
931 /* Fix this so it checks all the valid key/cert options */
932 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
934 if ( (ctx == NULL) ||
935 (ctx->cert == NULL) ||
936 (ctx->cert->key->x509 == NULL))
938 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
941 if (ctx->cert->key->privatekey == NULL)
943 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
946 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
949 /* Fix this function so that it takes an optional type parameter */
950 int SSL_check_private_key(const SSL *ssl)
954 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
957 if (ssl->cert == NULL)
959 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
962 if (ssl->cert->key->x509 == NULL)
964 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
967 if (ssl->cert->key->privatekey == NULL)
969 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
972 return(X509_check_private_key(ssl->cert->key->x509,
973 ssl->cert->key->privatekey));
976 int SSL_accept(SSL *s)
978 if (s->handshake_func == 0)
979 /* Not properly initialized yet */
980 SSL_set_accept_state(s);
982 return(s->method->ssl_accept(s));
985 int SSL_connect(SSL *s)
987 if (s->handshake_func == 0)
988 /* Not properly initialized yet */
989 SSL_set_connect_state(s);
991 return(s->method->ssl_connect(s));
994 long SSL_get_default_timeout(const SSL *s)
996 return(s->method->get_timeout());
999 int SSL_read(SSL *s,void *buf,int num)
1001 if (s->handshake_func == 0)
1003 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
1007 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
1009 s->rwstate=SSL_NOTHING;
1012 return(s->method->ssl_read(s,buf,num));
1015 int SSL_peek(SSL *s,void *buf,int num)
1017 if (s->handshake_func == 0)
1019 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
1023 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
1027 return(s->method->ssl_peek(s,buf,num));
1030 int SSL_write(SSL *s,const void *buf,int num)
1032 if (s->handshake_func == 0)
1034 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
1038 if (s->shutdown & SSL_SENT_SHUTDOWN)
1040 s->rwstate=SSL_NOTHING;
1041 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
1044 return(s->method->ssl_write(s,buf,num));
1047 int SSL_shutdown(SSL *s)
1049 /* Note that this function behaves differently from what one might
1050 * expect. Return values are 0 for no success (yet),
1051 * 1 for success; but calling it once is usually not enough,
1052 * even if blocking I/O is used (see ssl3_shutdown).
1055 if (s->handshake_func == 0)
1057 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1061 if ((s != NULL) && !SSL_in_init(s))
1062 return(s->method->ssl_shutdown(s));
1067 int SSL_renegotiate(SSL *s)
1069 if (s->renegotiate == 0)
1074 return(s->method->ssl_renegotiate(s));
1077 int SSL_renegotiate_abbreviated(SSL *s)
1079 if (s->renegotiate == 0)
1084 return(s->method->ssl_renegotiate(s));
1087 int SSL_renegotiate_pending(SSL *s)
1089 /* becomes true when negotiation is requested;
1090 * false again once a handshake has finished */
1091 return (s->renegotiate != 0);
1094 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
1100 case SSL_CTRL_GET_READ_AHEAD:
1101 return(s->read_ahead);
1102 case SSL_CTRL_SET_READ_AHEAD:
1107 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1108 s->msg_callback_arg = parg;
1111 case SSL_CTRL_OPTIONS:
1112 return(s->options|=larg);
1113 case SSL_CTRL_CLEAR_OPTIONS:
1114 return(s->options&=~larg);
1116 return(s->mode|=larg);
1117 case SSL_CTRL_CLEAR_MODE:
1118 return(s->mode &=~larg);
1119 case SSL_CTRL_GET_MAX_CERT_LIST:
1120 return(s->max_cert_list);
1121 case SSL_CTRL_SET_MAX_CERT_LIST:
1123 s->max_cert_list=larg;
1125 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1126 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1128 s->max_send_fragment = larg;
1130 case SSL_CTRL_GET_RI_SUPPORT:
1132 return s->s3->send_connection_binding;
1134 case SSL_CTRL_CERT_FLAGS:
1135 return(s->cert->cert_flags|=larg);
1136 case SSL_CTRL_CLEAR_CERT_FLAGS:
1137 return(s->cert->cert_flags &=~larg);
1139 case SSL_CTRL_GET_RAW_CIPHERLIST:
1142 if (s->cert->ciphers_raw == NULL)
1144 *(unsigned char **)parg = s->cert->ciphers_raw;
1145 return (int)s->cert->ciphers_rawlen;
1148 return ssl_put_cipher_by_char(s,NULL,NULL);
1150 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1154 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1158 case SSL_CTRL_SET_MSG_CALLBACK:
1159 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1163 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1167 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1169 return ctx->sessions;
1172 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1175 /* For some cases with ctx == NULL perform syntax checks */
1180 #ifndef OPENSSL_NO_EC
1181 case SSL_CTRL_SET_CURVES_LIST:
1182 return tls1_set_curves_list(NULL, NULL, parg);
1184 case SSL_CTRL_SET_SIGALGS_LIST:
1185 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1186 return tls1_set_sigalgs_list(NULL, parg, 0);
1194 case SSL_CTRL_GET_READ_AHEAD:
1195 return(ctx->read_ahead);
1196 case SSL_CTRL_SET_READ_AHEAD:
1198 ctx->read_ahead=larg;
1201 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1202 ctx->msg_callback_arg = parg;
1205 case SSL_CTRL_GET_MAX_CERT_LIST:
1206 return(ctx->max_cert_list);
1207 case SSL_CTRL_SET_MAX_CERT_LIST:
1208 l=ctx->max_cert_list;
1209 ctx->max_cert_list=larg;
1212 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1213 l=ctx->session_cache_size;
1214 ctx->session_cache_size=larg;
1216 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1217 return(ctx->session_cache_size);
1218 case SSL_CTRL_SET_SESS_CACHE_MODE:
1219 l=ctx->session_cache_mode;
1220 ctx->session_cache_mode=larg;
1222 case SSL_CTRL_GET_SESS_CACHE_MODE:
1223 return(ctx->session_cache_mode);
1225 case SSL_CTRL_SESS_NUMBER:
1226 return(lh_SSL_SESSION_num_items(ctx->sessions));
1227 case SSL_CTRL_SESS_CONNECT:
1228 return(ctx->stats.sess_connect);
1229 case SSL_CTRL_SESS_CONNECT_GOOD:
1230 return(ctx->stats.sess_connect_good);
1231 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1232 return(ctx->stats.sess_connect_renegotiate);
1233 case SSL_CTRL_SESS_ACCEPT:
1234 return(ctx->stats.sess_accept);
1235 case SSL_CTRL_SESS_ACCEPT_GOOD:
1236 return(ctx->stats.sess_accept_good);
1237 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1238 return(ctx->stats.sess_accept_renegotiate);
1239 case SSL_CTRL_SESS_HIT:
1240 return(ctx->stats.sess_hit);
1241 case SSL_CTRL_SESS_CB_HIT:
1242 return(ctx->stats.sess_cb_hit);
1243 case SSL_CTRL_SESS_MISSES:
1244 return(ctx->stats.sess_miss);
1245 case SSL_CTRL_SESS_TIMEOUTS:
1246 return(ctx->stats.sess_timeout);
1247 case SSL_CTRL_SESS_CACHE_FULL:
1248 return(ctx->stats.sess_cache_full);
1249 case SSL_CTRL_OPTIONS:
1250 return(ctx->options|=larg);
1251 case SSL_CTRL_CLEAR_OPTIONS:
1252 return(ctx->options&=~larg);
1254 return(ctx->mode|=larg);
1255 case SSL_CTRL_CLEAR_MODE:
1256 return(ctx->mode&=~larg);
1257 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1258 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1260 ctx->max_send_fragment = larg;
1262 case SSL_CTRL_CERT_FLAGS:
1263 return(ctx->cert->cert_flags|=larg);
1264 case SSL_CTRL_CLEAR_CERT_FLAGS:
1265 return(ctx->cert->cert_flags &=~larg);
1267 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1271 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1275 case SSL_CTRL_SET_MSG_CALLBACK:
1276 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1280 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1284 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1292 return((l > 0)?1:-1);
1295 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1296 const SSL_CIPHER * const *bp)
1300 l=(*ap)->id-(*bp)->id;
1304 return((l > 0)?1:-1);
1307 /** return a STACK of the ciphers available for the SSL and in order of
1309 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1313 if (s->cipher_list != NULL)
1315 return(s->cipher_list);
1317 else if ((s->ctx != NULL) &&
1318 (s->ctx->cipher_list != NULL))
1320 return(s->ctx->cipher_list);
1326 /** return a STACK of the ciphers available for the SSL and in order of
1328 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1332 if (s->cipher_list_by_id != NULL)
1334 return(s->cipher_list_by_id);
1336 else if ((s->ctx != NULL) &&
1337 (s->ctx->cipher_list_by_id != NULL))
1339 return(s->ctx->cipher_list_by_id);
1345 /** The old interface to get the same thing as SSL_get_ciphers() */
1346 const char *SSL_get_cipher_list(const SSL *s,int n)
1349 STACK_OF(SSL_CIPHER) *sk;
1351 if (s == NULL) return(NULL);
1352 sk=SSL_get_ciphers(s);
1353 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1355 c=sk_SSL_CIPHER_value(sk,n);
1356 if (c == NULL) return(NULL);
1360 /** specify the ciphers to be used by default by the SSL_CTX */
1361 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1363 STACK_OF(SSL_CIPHER) *sk;
1365 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1366 &ctx->cipher_list_by_id,str, ctx->cert);
1367 /* ssl_create_cipher_list may return an empty stack if it
1368 * was unable to find a cipher matching the given rule string
1369 * (for example if the rule string specifies a cipher which
1370 * has been disabled). This is not an error as far as
1371 * ssl_create_cipher_list is concerned, and hence
1372 * ctx->cipher_list and ctx->cipher_list_by_id has been
1376 else if (sk_SSL_CIPHER_num(sk) == 0)
1378 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1384 /** specify the ciphers to be used by the SSL */
1385 int SSL_set_cipher_list(SSL *s,const char *str)
1387 STACK_OF(SSL_CIPHER) *sk;
1389 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1390 &s->cipher_list_by_id,str, s->cert);
1391 /* see comment in SSL_CTX_set_cipher_list */
1394 else if (sk_SSL_CIPHER_num(sk) == 0)
1396 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1402 /* works well for SSLv2, not so good for SSLv3 */
1403 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1406 STACK_OF(SSL_CIPHER) *sk;
1410 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1415 sk=s->session->ciphers;
1417 if (sk_SSL_CIPHER_num(sk) == 0)
1420 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1424 c=sk_SSL_CIPHER_value(sk,i);
1442 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1443 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1449 int empty_reneg_info_scsv = !s->renegotiate;
1450 /* Set disabled masks for this session */
1451 ssl_set_client_disabled(s);
1453 if (sk == NULL) return(0);
1456 put_cb = s->method->put_cipher_by_char;
1458 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1460 c=sk_SSL_CIPHER_value(sk,i);
1461 /* Skip disabled ciphers */
1462 if (c->algorithm_ssl & ct->mask_ssl ||
1463 c->algorithm_mkey & ct->mask_k ||
1464 c->algorithm_auth & ct->mask_a)
1466 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1467 if (c->id == SSL3_CK_SCSV)
1469 if (!empty_reneg_info_scsv)
1472 empty_reneg_info_scsv = 0;
1478 /* If p == q, no ciphers; caller indicates an error.
1479 * Otherwise, add applicable SCSVs. */
1482 if (empty_reneg_info_scsv)
1484 static SSL_CIPHER scsv =
1486 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1488 j = put_cb(&scsv,p);
1490 #ifdef OPENSSL_RI_DEBUG
1491 fprintf(stderr, "TLS_EMPTY_RENEGOTIATION_INFO_SCSV sent by client\n");
1494 if (s->mode & SSL_MODE_SEND_FALLBACK_SCSV)
1496 static SSL_CIPHER scsv =
1498 0, NULL, SSL3_CK_FALLBACK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1500 j = put_cb(&scsv,p);
1508 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1509 STACK_OF(SSL_CIPHER) **skp)
1511 const SSL_CIPHER *c;
1512 STACK_OF(SSL_CIPHER) *sk;
1516 s->s3->send_connection_binding = 0;
1518 n=ssl_put_cipher_by_char(s,NULL,NULL);
1519 if (n == 0 || (num%n) != 0)
1521 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1524 if ((skp == NULL) || (*skp == NULL))
1525 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1529 sk_SSL_CIPHER_zero(sk);
1532 if (s->cert->ciphers_raw)
1533 OPENSSL_free(s->cert->ciphers_raw);
1534 s->cert->ciphers_raw = BUF_memdup(p, num);
1535 if (s->cert->ciphers_raw == NULL)
1537 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1540 s->cert->ciphers_rawlen = (size_t)num;
1542 for (i=0; i<num; i+=n)
1544 /* Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV */
1545 if (s->s3 && (n != 3 || !p[0]) &&
1546 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1547 (p[n-1] == (SSL3_CK_SCSV & 0xff)))
1549 /* SCSV fatal if renegotiating */
1552 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1553 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1556 s->s3->send_connection_binding = 1;
1558 #ifdef OPENSSL_RI_DEBUG
1559 fprintf(stderr, "SCSV received by server\n");
1564 /* Check for TLS_FALLBACK_SCSV */
1565 if ((n != 3 || !p[0]) &&
1566 (p[n-2] == ((SSL3_CK_FALLBACK_SCSV >> 8) & 0xff)) &&
1567 (p[n-1] == (SSL3_CK_FALLBACK_SCSV & 0xff)))
1569 /* The SCSV indicates that the client previously tried a higher version.
1570 * Fail if the current version is an unexpected downgrade. */
1571 if (!SSL_ctrl(s, SSL_CTRL_CHECK_PROTO_VERSION, 0, NULL))
1573 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_INAPPROPRIATE_FALLBACK);
1575 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_INAPPROPRIATE_FALLBACK);
1582 c=ssl_get_cipher_by_char(s,p);
1586 if (!sk_SSL_CIPHER_push(sk,c))
1588 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1598 if ((skp == NULL) || (*skp == NULL))
1599 sk_SSL_CIPHER_free(sk);
1604 #ifndef OPENSSL_NO_TLSEXT
1605 /** return a servername extension value if provided in Client Hello, or NULL.
1606 * So far, only host_name types are defined (RFC 3546).
1609 const char *SSL_get_servername(const SSL *s, const int type)
1611 if (type != TLSEXT_NAMETYPE_host_name)
1614 return s->session && !s->tlsext_hostname ?
1615 s->session->tlsext_hostname :
1619 int SSL_get_servername_type(const SSL *s)
1621 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1622 return TLSEXT_NAMETYPE_host_name;
1626 /* SSL_select_next_proto implements the standard protocol selection. It is
1627 * expected that this function is called from the callback set by
1628 * SSL_CTX_set_next_proto_select_cb.
1630 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
1631 * strings. The length byte itself is not included in the length. A byte
1632 * string of length 0 is invalid. No byte string may be truncated.
1634 * The current, but experimental algorithm for selecting the protocol is:
1636 * 1) If the server doesn't support NPN then this is indicated to the
1637 * callback. In this case, the client application has to abort the connection
1638 * or have a default application level protocol.
1640 * 2) If the server supports NPN, but advertises an empty list then the
1641 * client selects the first protcol in its list, but indicates via the
1642 * API that this fallback case was enacted.
1644 * 3) Otherwise, the client finds the first protocol in the server's list
1645 * that it supports and selects this protocol. This is because it's
1646 * assumed that the server has better information about which protocol
1647 * a client should use.
1649 * 4) If the client doesn't support any of the server's advertised
1650 * protocols, then this is treated the same as case 2.
1653 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or
1654 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1656 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)
1659 const unsigned char *result;
1660 int status = OPENSSL_NPN_UNSUPPORTED;
1662 /* For each protocol in server preference order, see if we support it. */
1663 for (i = 0; i < server_len; )
1665 for (j = 0; j < client_len; )
1667 if (server[i] == client[j] &&
1668 memcmp(&server[i+1], &client[j+1], server[i]) == 0)
1670 /* We found a match */
1671 result = &server[i];
1672 status = OPENSSL_NPN_NEGOTIATED;
1682 /* There's no overlap between our protocols and the server's list. */
1684 status = OPENSSL_NPN_NO_OVERLAP;
1687 *out = (unsigned char *) result + 1;
1688 *outlen = result[0];
1692 # ifndef OPENSSL_NO_NEXTPROTONEG
1693 /* SSL_get0_next_proto_negotiated sets *data and *len to point to the client's
1694 * requested protocol for this connection and returns 0. If the client didn't
1695 * request any protocol, then *data is set to NULL.
1697 * Note that the client can request any protocol it chooses. The value returned
1698 * from this function need not be a member of the list of supported protocols
1699 * provided by the callback.
1701 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, unsigned *len)
1703 *data = s->next_proto_negotiated;
1707 *len = s->next_proto_negotiated_len;
1711 /* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a
1712 * TLS server needs a list of supported protocols for Next Protocol
1713 * Negotiation. The returned list must be in wire format. The list is returned
1714 * by setting |out| to point to it and |outlen| to its length. This memory will
1715 * not be modified, but one should assume that the SSL* keeps a reference to
1718 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. Otherwise, no
1719 * such extension will be included in the ServerHello. */
1720 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)
1722 ctx->next_protos_advertised_cb = cb;
1723 ctx->next_protos_advertised_cb_arg = arg;
1726 /* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1727 * client needs to select a protocol from the server's provided list. |out|
1728 * must be set to point to the selected protocol (which may be within |in|).
1729 * The length of the protocol name must be written into |outlen|. The server's
1730 * advertised protocols are provided in |in| and |inlen|. The callback can
1731 * assume that |in| is syntactically valid.
1733 * The client must select a protocol. It is fatal to the connection if this
1734 * callback returns a value other than SSL_TLSEXT_ERR_OK.
1736 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)
1738 ctx->next_proto_select_cb = cb;
1739 ctx->next_proto_select_cb_arg = arg;
1743 /* SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1744 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1745 * length-prefixed strings).
1747 * Returns 0 on success. */
1748 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char* protos,
1749 unsigned protos_len)
1751 if (ctx->alpn_client_proto_list)
1752 OPENSSL_free(ctx->alpn_client_proto_list);
1754 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1755 if (!ctx->alpn_client_proto_list)
1757 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
1758 ctx->alpn_client_proto_list_len = protos_len;
1763 /* SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1764 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1765 * length-prefixed strings).
1767 * Returns 0 on success. */
1768 int SSL_set_alpn_protos(SSL *ssl, const unsigned char* protos,
1769 unsigned protos_len)
1771 if (ssl->alpn_client_proto_list)
1772 OPENSSL_free(ssl->alpn_client_proto_list);
1774 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1775 if (!ssl->alpn_client_proto_list)
1777 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
1778 ssl->alpn_client_proto_list_len = protos_len;
1783 /* SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is called
1784 * during ClientHello processing in order to select an ALPN protocol from the
1785 * client's list of offered protocols. */
1786 void SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx,
1787 int (*cb) (SSL *ssl,
1788 const unsigned char **out,
1789 unsigned char *outlen,
1790 const unsigned char *in,
1795 ctx->alpn_select_cb = cb;
1796 ctx->alpn_select_cb_arg = arg;
1799 /* SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
1800 * On return it sets |*data| to point to |*len| bytes of protocol name (not
1801 * including the leading length-prefix byte). If the server didn't respond with
1802 * a negotiated protocol then |*len| will be zero. */
1803 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1808 *data = ssl->s3->alpn_selected;
1812 *len = ssl->s3->alpn_selected_len;
1815 #endif /* !OPENSSL_NO_TLSEXT */
1817 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1818 const char *label, size_t llen, const unsigned char *p, size_t plen,
1821 if (s->version < TLS1_VERSION)
1824 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1829 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1834 ((unsigned int) a->session_id[0] )|
1835 ((unsigned int) a->session_id[1]<< 8L)|
1836 ((unsigned long)a->session_id[2]<<16L)|
1837 ((unsigned long)a->session_id[3]<<24L);
1841 /* NB: If this function (or indeed the hash function which uses a sort of
1842 * coarser function than this one) is changed, ensure
1843 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1844 * able to construct an SSL_SESSION that will collide with any existing session
1845 * with a matching session ID. */
1846 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1848 if (a->ssl_version != b->ssl_version)
1850 if (a->session_id_length != b->session_id_length)
1852 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1855 /* These wrapper functions should remain rather than redeclaring
1856 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1857 * variable. The reason is that the functions aren't static, they're exposed via
1859 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1860 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1862 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1868 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1873 if (FIPS_mode() && (meth->version < TLS1_VERSION))
1875 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1880 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1882 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1885 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1889 memset(ret,0,sizeof(SSL_CTX));
1893 ret->cert_store=NULL;
1894 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1895 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1896 ret->session_cache_head=NULL;
1897 ret->session_cache_tail=NULL;
1899 /* We take the system default */
1900 ret->session_timeout=meth->get_timeout();
1902 ret->new_session_cb=0;
1903 ret->remove_session_cb=0;
1904 ret->get_session_cb=0;
1905 ret->generate_session_id=0;
1907 memset((char *)&ret->stats,0,sizeof(ret->stats));
1910 ret->quiet_shutdown=0;
1912 /* ret->cipher=NULL;*/
1913 /* ret->s2->challenge=NULL;
1914 ret->master_key=NULL;
1916 ret->s2->conn_id=NULL; */
1918 ret->info_callback=NULL;
1920 ret->app_verify_callback=0;
1921 ret->app_verify_arg=NULL;
1923 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1925 ret->msg_callback=0;
1926 ret->msg_callback_arg=NULL;
1927 ret->verify_mode=SSL_VERIFY_NONE;
1929 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1931 ret->sid_ctx_length=0;
1932 ret->default_verify_callback=NULL;
1933 if ((ret->cert=ssl_cert_new()) == NULL)
1936 ret->default_passwd_callback=0;
1937 ret->default_passwd_callback_userdata=NULL;
1938 ret->client_cert_cb=0;
1939 ret->app_gen_cookie_cb=0;
1940 ret->app_verify_cookie_cb=0;
1942 ret->sessions=lh_SSL_SESSION_new();
1943 if (ret->sessions == NULL) goto err;
1944 ret->cert_store=X509_STORE_new();
1945 if (ret->cert_store == NULL) goto err;
1947 ssl_create_cipher_list(ret->method,
1948 &ret->cipher_list,&ret->cipher_list_by_id,
1949 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, ret->cert);
1950 if (ret->cipher_list == NULL
1951 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1953 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1957 ret->param = X509_VERIFY_PARAM_new();
1961 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1963 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1966 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1968 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1971 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1973 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1977 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1980 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1982 ret->extra_certs=NULL;
1983 /* No compression for DTLS */
1984 if (meth->version != DTLS1_VERSION)
1985 ret->comp_methods=SSL_COMP_get_compression_methods();
1987 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1989 #ifndef OPENSSL_NO_TLSEXT
1990 ret->tlsext_servername_callback = 0;
1991 ret->tlsext_servername_arg = NULL;
1992 /* Setup RFC4507 ticket keys */
1993 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1994 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1995 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1996 ret->options |= SSL_OP_NO_TICKET;
1998 ret->tlsext_status_cb = 0;
1999 ret->tlsext_status_arg = NULL;
2001 # ifndef OPENSSL_NO_NEXTPROTONEG
2002 ret->next_protos_advertised_cb = 0;
2003 ret->next_proto_select_cb = 0;
2006 #ifndef OPENSSL_NO_PSK
2007 ret->psk_identity_hint=NULL;
2008 ret->psk_client_callback=NULL;
2009 ret->psk_server_callback=NULL;
2011 #ifndef OPENSSL_NO_SRP
2012 SSL_CTX_SRP_CTX_init(ret);
2014 #ifndef OPENSSL_NO_BUF_FREELISTS
2015 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
2016 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
2017 if (!ret->rbuf_freelist)
2019 ret->rbuf_freelist->chunklen = 0;
2020 ret->rbuf_freelist->len = 0;
2021 ret->rbuf_freelist->head = NULL;
2022 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
2023 if (!ret->wbuf_freelist)
2025 OPENSSL_free(ret->rbuf_freelist);
2028 ret->wbuf_freelist->chunklen = 0;
2029 ret->wbuf_freelist->len = 0;
2030 ret->wbuf_freelist->head = NULL;
2032 #ifndef OPENSSL_NO_ENGINE
2033 ret->client_cert_engine = NULL;
2034 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2035 #define eng_strx(x) #x
2036 #define eng_str(x) eng_strx(x)
2037 /* Use specific client engine automatically... ignore errors */
2040 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2044 ENGINE_load_builtin_engines();
2045 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2047 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
2052 /* Default is to connect to non-RI servers. When RI is more widely
2053 * deployed might change this.
2055 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
2059 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
2061 if (ret != NULL) SSL_CTX_free(ret);
2066 static void SSL_COMP_free(SSL_COMP *comp)
2067 { OPENSSL_free(comp); }
2070 #ifndef OPENSSL_NO_BUF_FREELISTS
2072 ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
2074 SSL3_BUF_FREELIST_ENTRY *ent, *next;
2075 for (ent = list->head; ent; ent = next)
2084 void SSL_CTX_free(SSL_CTX *a)
2088 if (a == NULL) return;
2090 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
2092 REF_PRINT("SSL_CTX",a);
2098 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
2104 X509_VERIFY_PARAM_free(a->param);
2107 * Free internal session cache. However: the remove_cb() may reference
2108 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2109 * after the sessions were flushed.
2110 * As the ex_data handling routines might also touch the session cache,
2111 * the most secure solution seems to be: empty (flush) the cache, then
2112 * free ex_data, then finally free the cache.
2113 * (See ticket [openssl.org #212].)
2115 if (a->sessions != NULL)
2116 SSL_CTX_flush_sessions(a,0);
2118 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
2120 if (a->sessions != NULL)
2121 lh_SSL_SESSION_free(a->sessions);
2123 if (a->cert_store != NULL)
2124 X509_STORE_free(a->cert_store);
2125 if (a->cipher_list != NULL)
2126 sk_SSL_CIPHER_free(a->cipher_list);
2127 if (a->cipher_list_by_id != NULL)
2128 sk_SSL_CIPHER_free(a->cipher_list_by_id);
2129 if (a->cert != NULL)
2130 ssl_cert_free(a->cert);
2131 if (a->client_CA != NULL)
2132 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
2133 if (a->extra_certs != NULL)
2134 sk_X509_pop_free(a->extra_certs,X509_free);
2135 #if 0 /* This should never be done, since it removes a global database */
2136 if (a->comp_methods != NULL)
2137 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
2139 a->comp_methods = NULL;
2142 if (a->srtp_profiles)
2143 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
2145 #ifndef OPENSSL_NO_PSK
2146 if (a->psk_identity_hint)
2147 OPENSSL_free(a->psk_identity_hint);
2149 #ifndef OPENSSL_NO_SRP
2150 SSL_CTX_SRP_CTX_free(a);
2152 #ifndef OPENSSL_NO_ENGINE
2153 if (a->client_cert_engine)
2154 ENGINE_finish(a->client_cert_engine);
2157 #ifndef OPENSSL_NO_BUF_FREELISTS
2158 if (a->wbuf_freelist)
2159 ssl_buf_freelist_free(a->wbuf_freelist);
2160 if (a->rbuf_freelist)
2161 ssl_buf_freelist_free(a->rbuf_freelist);
2163 #ifndef OPENSSL_NO_TLSEXT
2164 # ifndef OPENSSL_NO_EC
2165 if (a->tlsext_ecpointformatlist)
2166 OPENSSL_free(a->tlsext_ecpointformatlist);
2167 if (a->tlsext_ellipticcurvelist)
2168 OPENSSL_free(a->tlsext_ellipticcurvelist);
2169 # endif /* OPENSSL_NO_EC */
2170 if (a->alpn_client_proto_list != NULL)
2171 OPENSSL_free(a->alpn_client_proto_list);
2177 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2179 ctx->default_passwd_callback=cb;
2182 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
2184 ctx->default_passwd_callback_userdata=u;
2187 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
2189 ctx->app_verify_callback=cb;
2190 ctx->app_verify_arg=arg;
2193 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
2195 ctx->verify_mode=mode;
2196 ctx->default_verify_callback=cb;
2199 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
2201 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2204 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb)(SSL *ssl, void *arg), void *arg)
2206 ssl_cert_set_cert_cb(c->cert, cb, arg);
2209 void SSL_set_cert_cb(SSL *s, int (*cb)(SSL *ssl, void *arg), void *arg)
2211 ssl_cert_set_cert_cb(s->cert, cb, arg);
2214 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
2217 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
2218 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
2219 int rsa_tmp_export,dh_tmp_export,kl;
2220 unsigned long mask_k,mask_a,emask_k,emask_a;
2221 #ifndef OPENSSL_NO_ECDSA
2222 int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
2224 #ifndef OPENSSL_NO_ECDH
2225 int have_ecdh_tmp, ecdh_ok;
2227 #ifndef OPENSSL_NO_EC
2229 EVP_PKEY *ecc_pkey = NULL;
2230 int signature_nid = 0, pk_nid = 0, md_nid = 0;
2232 if (c == NULL) return;
2234 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
2236 #ifndef OPENSSL_NO_RSA
2237 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2238 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
2239 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
2241 rsa_tmp=rsa_tmp_export=0;
2243 #ifndef OPENSSL_NO_DH
2244 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
2245 dh_tmp_export=(c->dh_tmp_cb != NULL ||
2246 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
2248 dh_tmp=dh_tmp_export=0;
2251 #ifndef OPENSSL_NO_ECDH
2252 have_ecdh_tmp=(c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
2254 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
2255 rsa_enc= cpk->valid_flags & CERT_PKEY_VALID;
2256 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2257 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2258 rsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2259 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2260 dsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2261 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
2262 dh_rsa= cpk->valid_flags & CERT_PKEY_VALID;
2263 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2264 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
2265 /* FIX THIS EAY EAY EAY */
2266 dh_dsa= cpk->valid_flags & CERT_PKEY_VALID;
2267 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2268 cpk= &(c->pkeys[SSL_PKEY_ECC]);
2269 #ifndef OPENSSL_NO_EC
2270 have_ecc_cert= cpk->valid_flags & CERT_PKEY_VALID;
2280 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2281 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
2282 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
2285 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2286 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2287 mask_k |= SSL_kGOST;
2288 mask_a |= SSL_aGOST01;
2290 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2291 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2292 mask_k |= SSL_kGOST;
2293 mask_a |= SSL_aGOST94;
2296 if (rsa_enc || (rsa_tmp && rsa_sign))
2298 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2302 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2303 if ( (dh_tmp || dh_rsa || dh_dsa) &&
2304 (rsa_enc || rsa_sign || dsa_sign))
2306 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
2307 (rsa_enc || rsa_sign || dsa_sign))
2317 if (dh_rsa) mask_k|=SSL_kDHr;
2318 if (dh_rsa_export) emask_k|=SSL_kDHr;
2320 if (dh_dsa) mask_k|=SSL_kDHd;
2321 if (dh_dsa_export) emask_k|=SSL_kDHd;
2323 if (emask_k & (SSL_kDHr|SSL_kDHd))
2326 if (rsa_enc || rsa_sign)
2341 #ifndef OPENSSL_NO_KRB5
2348 /* An ECC certificate may be usable for ECDH and/or
2349 * ECDSA cipher suites depending on the key usage extension.
2351 #ifndef OPENSSL_NO_EC
2354 cpk = &c->pkeys[SSL_PKEY_ECC];
2356 /* This call populates extension flags (ex_flags) */
2357 X509_check_purpose(x, -1, 0);
2358 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2359 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2360 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2361 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2362 if (!(cpk->valid_flags & CERT_PKEY_SIGN))
2364 ecc_pkey = X509_get_pubkey(x);
2365 ecc_pkey_size = (ecc_pkey != NULL) ?
2366 EVP_PKEY_bits(ecc_pkey) : 0;
2367 EVP_PKEY_free(ecc_pkey);
2368 if ((x->sig_alg) && (x->sig_alg->algorithm))
2370 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2371 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2373 #ifndef OPENSSL_NO_ECDH
2377 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa)
2381 if (ecc_pkey_size <= 163)
2383 emask_k|=SSL_kECDHr;
2388 if (pk_nid == NID_X9_62_id_ecPublicKey)
2392 if (ecc_pkey_size <= 163)
2394 emask_k|=SSL_kECDHe;
2400 #ifndef OPENSSL_NO_ECDSA
2404 emask_a|=SSL_aECDSA;
2410 #ifndef OPENSSL_NO_ECDH
2414 emask_k|=SSL_kEECDH;
2418 #ifndef OPENSSL_NO_PSK
2421 emask_k |= SSL_kPSK;
2422 emask_a |= SSL_aPSK;
2427 c->export_mask_k=emask_k;
2428 c->export_mask_a=emask_a;
2432 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2433 #define ku_reject(x, usage) \
2434 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2436 #ifndef OPENSSL_NO_EC
2438 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2440 unsigned long alg_k, alg_a;
2441 EVP_PKEY *pkey = NULL;
2443 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2444 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2446 alg_k = cs->algorithm_mkey;
2447 alg_a = cs->algorithm_auth;
2449 if (SSL_C_IS_EXPORT(cs))
2451 /* ECDH key length in export ciphers must be <= 163 bits */
2452 pkey = X509_get_pubkey(x);
2453 if (pkey == NULL) return 0;
2454 keysize = EVP_PKEY_bits(pkey);
2455 EVP_PKEY_free(pkey);
2456 if (keysize > 163) return 0;
2459 /* This call populates the ex_flags field correctly */
2460 X509_check_purpose(x, -1, 0);
2461 if ((x->sig_alg) && (x->sig_alg->algorithm))
2463 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2464 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2466 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
2468 /* key usage, if present, must allow key agreement */
2469 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
2471 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2474 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION)
2476 /* signature alg must be ECDSA */
2477 if (pk_nid != NID_X9_62_id_ecPublicKey)
2479 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2483 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION)
2485 /* signature alg must be RSA */
2487 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa)
2489 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2494 if (alg_a & SSL_aECDSA)
2496 /* key usage, if present, must allow signing */
2497 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
2499 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2504 return 1; /* all checks are ok */
2509 static int ssl_get_server_cert_index(const SSL *s)
2512 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2513 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2514 idx = SSL_PKEY_RSA_SIGN;
2516 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX,ERR_R_INTERNAL_ERROR);
2520 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s)
2526 if (!s->s3 || !s->s3->tmp.new_cipher)
2528 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2530 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2531 /* Broken protocol test: return last used certificate: which may
2532 * mismatch the one expected.
2534 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2538 i = ssl_get_server_cert_index(s);
2540 /* This may or may not be an error. */
2545 return &c->pkeys[i];
2548 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher, const EVP_MD **pmd)
2550 unsigned long alg_a;
2554 alg_a = cipher->algorithm_auth;
2557 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2558 /* Broken protocol test: use last key: which may
2559 * mismatch the one expected.
2561 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2562 idx = c->key - c->pkeys;
2566 if ((alg_a & SSL_aDSS) &&
2567 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2568 idx = SSL_PKEY_DSA_SIGN;
2569 else if (alg_a & SSL_aRSA)
2571 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2572 idx = SSL_PKEY_RSA_SIGN;
2573 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2574 idx = SSL_PKEY_RSA_ENC;
2576 else if ((alg_a & SSL_aECDSA) &&
2577 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2581 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2585 *pmd = c->pkeys[idx].digest;
2586 return c->pkeys[idx].privatekey;
2589 #ifndef OPENSSL_NO_TLSEXT
2590 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2591 size_t *serverinfo_length)
2595 *serverinfo_length = 0;
2598 i = ssl_get_server_cert_index(s);
2602 if (c->pkeys[i].serverinfo == NULL)
2605 *serverinfo = c->pkeys[i].serverinfo;
2606 *serverinfo_length = c->pkeys[i].serverinfo_length;
2611 void ssl_update_cache(SSL *s,int mode)
2615 /* If the session_id_length is 0, we are not supposed to cache it,
2616 * and it would be rather hard to do anyway :-) */
2617 if (s->session->session_id_length == 0) return;
2619 i=s->session_ctx->session_cache_mode;
2620 if ((i & mode) && (!s->hit)
2621 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2622 || SSL_CTX_add_session(s->session_ctx,s->session))
2623 && (s->session_ctx->new_session_cb != NULL))
2625 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2626 if (!s->session_ctx->new_session_cb(s,s->session))
2627 SSL_SESSION_free(s->session);
2630 /* auto flush every 255 connections */
2631 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2632 ((i & mode) == mode))
2634 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2635 ?s->session_ctx->stats.sess_connect_good
2636 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2638 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2643 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2648 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2653 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2658 if (s->method != meth)
2660 if (s->handshake_func != NULL)
2661 conn=(s->handshake_func == s->method->ssl_connect);
2663 if (s->method->version == meth->version)
2667 s->method->ssl_free(s);
2669 ret=s->method->ssl_new(s);
2673 s->handshake_func=meth->ssl_connect;
2675 s->handshake_func=meth->ssl_accept;
2680 int SSL_get_error(const SSL *s,int i)
2686 if (i > 0) return(SSL_ERROR_NONE);
2688 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2689 * etc, where we do encode the error */
2690 if ((l=ERR_peek_error()) != 0)
2692 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2693 return(SSL_ERROR_SYSCALL);
2695 return(SSL_ERROR_SSL);
2698 if ((i < 0) && SSL_want_read(s))
2700 bio=SSL_get_rbio(s);
2701 if (BIO_should_read(bio))
2702 return(SSL_ERROR_WANT_READ);
2703 else if (BIO_should_write(bio))
2704 /* This one doesn't make too much sense ... We never try
2705 * to write to the rbio, and an application program where
2706 * rbio and wbio are separate couldn't even know what it
2708 * However if we ever set s->rwstate incorrectly
2709 * (so that we have SSL_want_read(s) instead of
2710 * SSL_want_write(s)) and rbio and wbio *are* the same,
2711 * this test works around that bug; so it might be safer
2713 return(SSL_ERROR_WANT_WRITE);
2714 else if (BIO_should_io_special(bio))
2716 reason=BIO_get_retry_reason(bio);
2717 if (reason == BIO_RR_CONNECT)
2718 return(SSL_ERROR_WANT_CONNECT);
2719 else if (reason == BIO_RR_ACCEPT)
2720 return(SSL_ERROR_WANT_ACCEPT);
2722 return(SSL_ERROR_SYSCALL); /* unknown */
2726 if ((i < 0) && SSL_want_write(s))
2728 bio=SSL_get_wbio(s);
2729 if (BIO_should_write(bio))
2730 return(SSL_ERROR_WANT_WRITE);
2731 else if (BIO_should_read(bio))
2732 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2733 return(SSL_ERROR_WANT_READ);
2734 else if (BIO_should_io_special(bio))
2736 reason=BIO_get_retry_reason(bio);
2737 if (reason == BIO_RR_CONNECT)
2738 return(SSL_ERROR_WANT_CONNECT);
2739 else if (reason == BIO_RR_ACCEPT)
2740 return(SSL_ERROR_WANT_ACCEPT);
2742 return(SSL_ERROR_SYSCALL);
2745 if ((i < 0) && SSL_want_x509_lookup(s))
2747 return(SSL_ERROR_WANT_X509_LOOKUP);
2752 if (s->version == SSL2_VERSION)
2754 /* assume it is the socket being closed */
2755 return(SSL_ERROR_ZERO_RETURN);
2759 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2760 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2761 return(SSL_ERROR_ZERO_RETURN);
2764 return(SSL_ERROR_SYSCALL);
2767 int SSL_do_handshake(SSL *s)
2771 if (s->handshake_func == NULL)
2773 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2777 s->method->ssl_renegotiate_check(s);
2779 if (SSL_in_init(s) || SSL_in_before(s))
2781 ret=s->handshake_func(s);
2786 /* For the next 2 functions, SSL_clear() sets shutdown and so
2787 * one of these calls will reset it */
2788 void SSL_set_accept_state(SSL *s)
2792 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2793 s->handshake_func=s->method->ssl_accept;
2794 /* clear the current cipher */
2795 ssl_clear_cipher_ctx(s);
2796 ssl_clear_hash_ctx(&s->read_hash);
2797 ssl_clear_hash_ctx(&s->write_hash);
2800 void SSL_set_connect_state(SSL *s)
2804 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2805 s->handshake_func=s->method->ssl_connect;
2806 /* clear the current cipher */
2807 ssl_clear_cipher_ctx(s);
2808 ssl_clear_hash_ctx(&s->read_hash);
2809 ssl_clear_hash_ctx(&s->write_hash);
2812 int ssl_undefined_function(SSL *s)
2814 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2818 int ssl_undefined_void_function(void)
2820 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2824 int ssl_undefined_const_function(const SSL *s)
2826 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2830 SSL_METHOD *ssl_bad_method(int ver)
2832 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2836 const char *SSL_get_version(const SSL *s)
2838 if (s->version == TLS1_2_VERSION)
2840 else if (s->version == TLS1_1_VERSION)
2842 else if (s->version == TLS1_VERSION)
2844 else if (s->version == SSL3_VERSION)
2846 else if (s->version == SSL2_VERSION)
2852 SSL *SSL_dup(SSL *s)
2854 STACK_OF(X509_NAME) *sk;
2859 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2862 ret->version = s->version;
2863 ret->type = s->type;
2864 ret->method = s->method;
2866 if (s->session != NULL)
2868 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2869 SSL_copy_session_id(ret,s);
2873 /* No session has been established yet, so we have to expect
2874 * that s->cert or ret->cert will be changed later --
2875 * they should not both point to the same object,
2876 * and thus we can't use SSL_copy_session_id. */
2878 ret->method->ssl_free(ret);
2879 ret->method = s->method;
2880 ret->method->ssl_new(ret);
2882 if (s->cert != NULL)
2884 if (ret->cert != NULL)
2886 ssl_cert_free(ret->cert);
2888 ret->cert = ssl_cert_dup(s->cert);
2889 if (ret->cert == NULL)
2893 SSL_set_session_id_context(ret,
2894 s->sid_ctx, s->sid_ctx_length);
2897 ret->options=s->options;
2899 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2900 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2901 ret->msg_callback = s->msg_callback;
2902 ret->msg_callback_arg = s->msg_callback_arg;
2903 SSL_set_verify(ret,SSL_get_verify_mode(s),
2904 SSL_get_verify_callback(s));
2905 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2906 ret->generate_session_id = s->generate_session_id;
2908 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2910 ret->debug=s->debug;
2912 /* copy app data, a little dangerous perhaps */
2913 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2916 /* setup rbio, and wbio */
2917 if (s->rbio != NULL)
2919 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2922 if (s->wbio != NULL)
2924 if (s->wbio != s->rbio)
2926 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2930 ret->wbio=ret->rbio;
2932 ret->rwstate = s->rwstate;
2933 ret->in_handshake = s->in_handshake;
2934 ret->handshake_func = s->handshake_func;
2935 ret->server = s->server;
2936 ret->renegotiate = s->renegotiate;
2937 ret->new_session = s->new_session;
2938 ret->quiet_shutdown = s->quiet_shutdown;
2939 ret->shutdown=s->shutdown;
2940 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2941 ret->rstate=s->rstate;
2942 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2945 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2947 /* dup the cipher_list and cipher_list_by_id stacks */
2948 if (s->cipher_list != NULL)
2950 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2953 if (s->cipher_list_by_id != NULL)
2954 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2958 /* Dup the client_CA list */
2959 if (s->client_CA != NULL)
2961 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2963 for (i=0; i<sk_X509_NAME_num(sk); i++)
2965 xn=sk_X509_NAME_value(sk,i);
2966 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2977 if (ret != NULL) SSL_free(ret);
2983 void ssl_clear_cipher_ctx(SSL *s)
2985 if (s->enc_read_ctx != NULL)
2987 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2988 OPENSSL_free(s->enc_read_ctx);
2989 s->enc_read_ctx=NULL;
2991 if (s->enc_write_ctx != NULL)
2993 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2994 OPENSSL_free(s->enc_write_ctx);
2995 s->enc_write_ctx=NULL;
2997 #ifndef OPENSSL_NO_COMP
2998 if (s->expand != NULL)
3000 COMP_CTX_free(s->expand);
3003 if (s->compress != NULL)
3005 COMP_CTX_free(s->compress);
3011 X509 *SSL_get_certificate(const SSL *s)
3013 if (s->cert != NULL)
3014 return(s->cert->key->x509);
3019 EVP_PKEY *SSL_get_privatekey(const SSL *s)
3021 if (s->cert != NULL)
3022 return(s->cert->key->privatekey);
3027 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
3029 if (ctx->cert != NULL)
3030 return ctx->cert->key->x509;
3035 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
3037 if (ctx->cert != NULL)
3038 return ctx->cert->key->privatekey;
3043 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
3045 if ((s->session != NULL) && (s->session->cipher != NULL))
3046 return(s->session->cipher);
3049 #ifdef OPENSSL_NO_COMP
3050 const void *SSL_get_current_compression(SSL *s)
3054 const void *SSL_get_current_expansion(SSL *s)
3060 const COMP_METHOD *SSL_get_current_compression(SSL *s)
3062 if (s->compress != NULL)
3063 return(s->compress->meth);
3067 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
3069 if (s->expand != NULL)
3070 return(s->expand->meth);
3075 int ssl_init_wbio_buffer(SSL *s,int push)
3079 if (s->bbio == NULL)
3081 bbio=BIO_new(BIO_f_buffer());
3082 if (bbio == NULL) return(0);
3088 if (s->bbio == s->wbio)
3089 s->wbio=BIO_pop(s->wbio);
3091 (void)BIO_reset(bbio);
3092 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
3093 if (!BIO_set_read_buffer_size(bbio,1))
3095 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
3100 if (s->wbio != bbio)
3101 s->wbio=BIO_push(bbio,s->wbio);
3105 if (s->wbio == bbio)
3106 s->wbio=BIO_pop(bbio);
3111 void ssl_free_wbio_buffer(SSL *s)
3113 if (s->bbio == NULL) return;
3115 if (s->bbio == s->wbio)
3117 /* remove buffering */
3118 s->wbio=BIO_pop(s->wbio);
3119 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
3120 assert(s->wbio != NULL);
3127 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
3129 ctx->quiet_shutdown=mode;
3132 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
3134 return(ctx->quiet_shutdown);
3137 void SSL_set_quiet_shutdown(SSL *s,int mode)
3139 s->quiet_shutdown=mode;
3142 int SSL_get_quiet_shutdown(const SSL *s)
3144 return(s->quiet_shutdown);
3147 void SSL_set_shutdown(SSL *s,int mode)
3152 int SSL_get_shutdown(const SSL *s)
3154 return(s->shutdown);
3157 int SSL_version(const SSL *s)
3162 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
3167 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
3169 CERT *ocert = ssl->cert;
3170 if (ssl->ctx == ctx)
3172 #ifndef OPENSSL_NO_TLSEXT
3174 ctx = ssl->initial_ctx;
3176 ssl->cert = ssl_cert_dup(ctx->cert);
3179 /* Preserve any already negotiated parameters */
3182 ssl->cert->peer_sigalgs = ocert->peer_sigalgs;
3183 ssl->cert->peer_sigalgslen = ocert->peer_sigalgslen;
3184 ocert->peer_sigalgs = NULL;
3185 ssl->cert->ciphers_raw = ocert->ciphers_raw;
3186 ssl->cert->ciphers_rawlen = ocert->ciphers_rawlen;
3187 ocert->ciphers_raw = NULL;
3189 ssl_cert_free(ocert);
3191 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
3192 if (ssl->ctx != NULL)
3193 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3198 #ifndef OPENSSL_NO_STDIO
3199 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3201 return(X509_STORE_set_default_paths(ctx->cert_store));
3204 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3207 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
3211 void SSL_set_info_callback(SSL *ssl,
3212 void (*cb)(const SSL *ssl,int type,int val))
3214 ssl->info_callback=cb;
3217 /* One compiler (Diab DCC) doesn't like argument names in returned
3218 function pointer. */
3219 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
3221 return ssl->info_callback;
3224 int SSL_state(const SSL *ssl)
3229 void SSL_set_state(SSL *ssl, int state)
3234 void SSL_set_verify_result(SSL *ssl,long arg)
3236 ssl->verify_result=arg;
3239 long SSL_get_verify_result(const SSL *ssl)
3241 return(ssl->verify_result);
3244 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3245 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3247 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
3248 new_func, dup_func, free_func);
3251 int SSL_set_ex_data(SSL *s,int idx,void *arg)
3253 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3256 void *SSL_get_ex_data(const SSL *s,int idx)
3258 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3261 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3262 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3264 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3265 new_func, dup_func, free_func);
3268 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
3270 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3273 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
3275 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3283 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3285 return(ctx->cert_store);
3288 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
3290 if (ctx->cert_store != NULL)
3291 X509_STORE_free(ctx->cert_store);
3292 ctx->cert_store=store;
3295 int SSL_want(const SSL *s)
3301 * \brief Set the callback for generating temporary RSA keys.
3302 * \param ctx the SSL context.
3303 * \param cb the callback
3306 #ifndef OPENSSL_NO_RSA
3307 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
3311 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3314 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
3318 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3324 * \brief The RSA temporary key callback function.
3325 * \param ssl the SSL session.
3326 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3327 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3328 * of the required key in bits.
3329 * \return the temporary RSA key.
3330 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3333 RSA *cb(SSL *ssl,int is_export,int keylength)
3338 * \brief Set the callback for generating temporary DH keys.
3339 * \param ctx the SSL context.
3340 * \param dh the callback
3343 #ifndef OPENSSL_NO_DH
3344 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
3347 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3350 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
3353 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3357 #ifndef OPENSSL_NO_ECDH
3358 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3361 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3364 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3367 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3371 #ifndef OPENSSL_NO_PSK
3372 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3374 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3376 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3379 if (ctx->psk_identity_hint != NULL)
3380 OPENSSL_free(ctx->psk_identity_hint);
3381 if (identity_hint != NULL)
3383 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3384 if (ctx->psk_identity_hint == NULL)
3388 ctx->psk_identity_hint = NULL;
3392 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3397 if (s->session == NULL)
3398 return 1; /* session not created yet, ignored */
3400 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3402 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3405 if (s->session->psk_identity_hint != NULL)
3406 OPENSSL_free(s->session->psk_identity_hint);
3407 if (identity_hint != NULL)
3409 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3410 if (s->session->psk_identity_hint == NULL)
3414 s->session->psk_identity_hint = NULL;
3418 const char *SSL_get_psk_identity_hint(const SSL *s)
3420 if (s == NULL || s->session == NULL)
3422 return(s->session->psk_identity_hint);
3425 const char *SSL_get_psk_identity(const SSL *s)
3427 if (s == NULL || s->session == NULL)
3429 return(s->session->psk_identity);
3432 void SSL_set_psk_client_callback(SSL *s,
3433 unsigned int (*cb)(SSL *ssl, const char *hint,
3434 char *identity, unsigned int max_identity_len, unsigned char *psk,
3435 unsigned int max_psk_len))
3437 s->psk_client_callback = cb;
3440 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3441 unsigned int (*cb)(SSL *ssl, const char *hint,
3442 char *identity, unsigned int max_identity_len, unsigned char *psk,
3443 unsigned int max_psk_len))
3445 ctx->psk_client_callback = cb;
3448 void SSL_set_psk_server_callback(SSL *s,
3449 unsigned int (*cb)(SSL *ssl, const char *identity,
3450 unsigned char *psk, unsigned int max_psk_len))
3452 s->psk_server_callback = cb;
3455 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3456 unsigned int (*cb)(SSL *ssl, const char *identity,
3457 unsigned char *psk, unsigned int max_psk_len))
3459 ctx->psk_server_callback = cb;
3463 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))
3465 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3467 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))
3469 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3472 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3473 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
3474 * any. If EVP_MD pointer is passed, initializes ctx with this md
3475 * Returns newly allocated ctx;
3478 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
3480 ssl_clear_hash_ctx(hash);
3481 *hash = EVP_MD_CTX_create();
3482 if (md) EVP_DigestInit_ex(*hash,md,NULL);
3485 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3488 if (*hash) EVP_MD_CTX_destroy(*hash);
3492 void SSL_set_debug(SSL *s, int debug)
3497 int SSL_cache_hit(SSL *s)
3502 int SSL_is_server(SSL *s)
3507 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3508 #include "../crypto/bio/bss_file.c"
3511 IMPLEMENT_STACK_OF(SSL_CIPHER)
3512 IMPLEMENT_STACK_OF(SSL_COMP)
3513 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,