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 #ifndef OPENSSL_NO_SRTP
645 if (s->srtp_profiles)
646 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
652 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
654 /* If the output buffering BIO is still in place, remove it
658 if (s->wbio == s->bbio)
660 s->wbio=s->wbio->next_bio;
661 s->bbio->next_bio=NULL;
664 if ((s->rbio != NULL) && (s->rbio != rbio))
665 BIO_free_all(s->rbio);
666 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
667 BIO_free_all(s->wbio);
672 BIO *SSL_get_rbio(const SSL *s)
675 BIO *SSL_get_wbio(const SSL *s)
678 int SSL_get_fd(const SSL *s)
680 return(SSL_get_rfd(s));
683 int SSL_get_rfd(const SSL *s)
689 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
695 int SSL_get_wfd(const SSL *s)
701 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
707 #ifndef OPENSSL_NO_SOCK
708 int SSL_set_fd(SSL *s,int fd)
713 bio=BIO_new(BIO_s_socket());
717 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
720 BIO_set_fd(bio,fd,BIO_NOCLOSE);
721 SSL_set_bio(s,bio,bio);
727 int SSL_set_wfd(SSL *s,int fd)
732 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
733 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
735 bio=BIO_new(BIO_s_socket());
738 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
739 BIO_set_fd(bio,fd,BIO_NOCLOSE);
740 SSL_set_bio(s,SSL_get_rbio(s),bio);
743 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
749 int SSL_set_rfd(SSL *s,int fd)
754 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
755 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
757 bio=BIO_new(BIO_s_socket());
761 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
764 BIO_set_fd(bio,fd,BIO_NOCLOSE);
765 SSL_set_bio(s,bio,SSL_get_wbio(s));
768 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
776 /* return length of latest Finished message we sent, copy to 'buf' */
777 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
783 ret = s->s3->tmp.finish_md_len;
786 memcpy(buf, s->s3->tmp.finish_md, count);
791 /* return length of latest Finished message we expected, copy to 'buf' */
792 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
798 ret = s->s3->tmp.peer_finish_md_len;
801 memcpy(buf, s->s3->tmp.peer_finish_md, count);
807 int SSL_get_verify_mode(const SSL *s)
809 return(s->verify_mode);
812 int SSL_get_verify_depth(const SSL *s)
814 return X509_VERIFY_PARAM_get_depth(s->param);
817 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
819 return(s->verify_callback);
822 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
824 return(ctx->verify_mode);
827 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
829 return X509_VERIFY_PARAM_get_depth(ctx->param);
832 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
834 return(ctx->default_verify_callback);
837 void SSL_set_verify(SSL *s,int mode,
838 int (*callback)(int ok,X509_STORE_CTX *ctx))
841 if (callback != NULL)
842 s->verify_callback=callback;
845 void SSL_set_verify_depth(SSL *s,int depth)
847 X509_VERIFY_PARAM_set_depth(s->param, depth);
850 void SSL_set_read_ahead(SSL *s,int yes)
855 int SSL_get_read_ahead(const SSL *s)
857 return(s->read_ahead);
860 int SSL_pending(const SSL *s)
862 /* SSL_pending cannot work properly if read-ahead is enabled
863 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
864 * and it is impossible to fix since SSL_pending cannot report
865 * errors that may be observed while scanning the new data.
866 * (Note that SSL_pending() is often used as a boolean value,
867 * so we'd better not return -1.)
869 return(s->method->ssl_pending(s));
872 X509 *SSL_get_peer_certificate(const SSL *s)
876 if ((s == NULL) || (s->session == NULL))
881 if (r == NULL) return(r);
883 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
888 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
892 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
895 r=s->session->sess_cert->cert_chain;
897 /* If we are a client, cert_chain includes the peer's own
898 * certificate; if we are a server, it does not. */
903 /* Now in theory, since the calling process own 't' it should be safe to
904 * modify. We need to be able to read f without being hassled */
905 void SSL_copy_session_id(SSL *t,const SSL *f)
909 /* Do we need to to SSL locking? */
910 SSL_set_session(t,SSL_get_session(f));
912 /* what if we are setup as SSLv2 but want to talk SSLv3 or
914 if (t->method != f->method)
916 t->method->ssl_free(t); /* cleanup current */
917 t->method=f->method; /* change method */
918 t->method->ssl_new(t); /* setup new */
924 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
929 if (tmp != NULL) ssl_cert_free(tmp);
930 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
933 /* Fix this so it checks all the valid key/cert options */
934 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
936 if ( (ctx == NULL) ||
937 (ctx->cert == NULL) ||
938 (ctx->cert->key->x509 == NULL))
940 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
943 if (ctx->cert->key->privatekey == NULL)
945 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
948 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
951 /* Fix this function so that it takes an optional type parameter */
952 int SSL_check_private_key(const SSL *ssl)
956 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
959 if (ssl->cert == NULL)
961 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
964 if (ssl->cert->key->x509 == NULL)
966 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
969 if (ssl->cert->key->privatekey == NULL)
971 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
974 return(X509_check_private_key(ssl->cert->key->x509,
975 ssl->cert->key->privatekey));
978 int SSL_accept(SSL *s)
980 if (s->handshake_func == 0)
981 /* Not properly initialized yet */
982 SSL_set_accept_state(s);
984 return(s->method->ssl_accept(s));
987 int SSL_connect(SSL *s)
989 if (s->handshake_func == 0)
990 /* Not properly initialized yet */
991 SSL_set_connect_state(s);
993 return(s->method->ssl_connect(s));
996 long SSL_get_default_timeout(const SSL *s)
998 return(s->method->get_timeout());
1001 int SSL_read(SSL *s,void *buf,int num)
1003 if (s->handshake_func == 0)
1005 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
1009 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
1011 s->rwstate=SSL_NOTHING;
1014 return(s->method->ssl_read(s,buf,num));
1017 int SSL_peek(SSL *s,void *buf,int num)
1019 if (s->handshake_func == 0)
1021 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
1025 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
1029 return(s->method->ssl_peek(s,buf,num));
1032 int SSL_write(SSL *s,const void *buf,int num)
1034 if (s->handshake_func == 0)
1036 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
1040 if (s->shutdown & SSL_SENT_SHUTDOWN)
1042 s->rwstate=SSL_NOTHING;
1043 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
1046 return(s->method->ssl_write(s,buf,num));
1049 int SSL_shutdown(SSL *s)
1051 /* Note that this function behaves differently from what one might
1052 * expect. Return values are 0 for no success (yet),
1053 * 1 for success; but calling it once is usually not enough,
1054 * even if blocking I/O is used (see ssl3_shutdown).
1057 if (s->handshake_func == 0)
1059 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1063 if ((s != NULL) && !SSL_in_init(s))
1064 return(s->method->ssl_shutdown(s));
1069 int SSL_renegotiate(SSL *s)
1071 if (s->renegotiate == 0)
1076 return(s->method->ssl_renegotiate(s));
1079 int SSL_renegotiate_abbreviated(SSL *s)
1081 if (s->renegotiate == 0)
1086 return(s->method->ssl_renegotiate(s));
1089 int SSL_renegotiate_pending(SSL *s)
1091 /* becomes true when negotiation is requested;
1092 * false again once a handshake has finished */
1093 return (s->renegotiate != 0);
1096 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
1102 case SSL_CTRL_GET_READ_AHEAD:
1103 return(s->read_ahead);
1104 case SSL_CTRL_SET_READ_AHEAD:
1109 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1110 s->msg_callback_arg = parg;
1113 case SSL_CTRL_OPTIONS:
1114 return(s->options|=larg);
1115 case SSL_CTRL_CLEAR_OPTIONS:
1116 return(s->options&=~larg);
1118 return(s->mode|=larg);
1119 case SSL_CTRL_CLEAR_MODE:
1120 return(s->mode &=~larg);
1121 case SSL_CTRL_GET_MAX_CERT_LIST:
1122 return(s->max_cert_list);
1123 case SSL_CTRL_SET_MAX_CERT_LIST:
1125 s->max_cert_list=larg;
1127 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1128 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1130 s->max_send_fragment = larg;
1132 case SSL_CTRL_GET_RI_SUPPORT:
1134 return s->s3->send_connection_binding;
1136 case SSL_CTRL_CERT_FLAGS:
1137 return(s->cert->cert_flags|=larg);
1138 case SSL_CTRL_CLEAR_CERT_FLAGS:
1139 return(s->cert->cert_flags &=~larg);
1141 case SSL_CTRL_GET_RAW_CIPHERLIST:
1144 if (s->cert->ciphers_raw == NULL)
1146 *(unsigned char **)parg = s->cert->ciphers_raw;
1147 return (int)s->cert->ciphers_rawlen;
1150 return ssl_put_cipher_by_char(s,NULL,NULL);
1152 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1156 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1160 case SSL_CTRL_SET_MSG_CALLBACK:
1161 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1165 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1169 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1171 return ctx->sessions;
1174 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1177 /* For some cases with ctx == NULL perform syntax checks */
1182 #ifndef OPENSSL_NO_EC
1183 case SSL_CTRL_SET_CURVES_LIST:
1184 return tls1_set_curves_list(NULL, NULL, parg);
1186 case SSL_CTRL_SET_SIGALGS_LIST:
1187 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1188 return tls1_set_sigalgs_list(NULL, parg, 0);
1196 case SSL_CTRL_GET_READ_AHEAD:
1197 return(ctx->read_ahead);
1198 case SSL_CTRL_SET_READ_AHEAD:
1200 ctx->read_ahead=larg;
1203 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1204 ctx->msg_callback_arg = parg;
1207 case SSL_CTRL_GET_MAX_CERT_LIST:
1208 return(ctx->max_cert_list);
1209 case SSL_CTRL_SET_MAX_CERT_LIST:
1210 l=ctx->max_cert_list;
1211 ctx->max_cert_list=larg;
1214 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1215 l=ctx->session_cache_size;
1216 ctx->session_cache_size=larg;
1218 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1219 return(ctx->session_cache_size);
1220 case SSL_CTRL_SET_SESS_CACHE_MODE:
1221 l=ctx->session_cache_mode;
1222 ctx->session_cache_mode=larg;
1224 case SSL_CTRL_GET_SESS_CACHE_MODE:
1225 return(ctx->session_cache_mode);
1227 case SSL_CTRL_SESS_NUMBER:
1228 return(lh_SSL_SESSION_num_items(ctx->sessions));
1229 case SSL_CTRL_SESS_CONNECT:
1230 return(ctx->stats.sess_connect);
1231 case SSL_CTRL_SESS_CONNECT_GOOD:
1232 return(ctx->stats.sess_connect_good);
1233 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1234 return(ctx->stats.sess_connect_renegotiate);
1235 case SSL_CTRL_SESS_ACCEPT:
1236 return(ctx->stats.sess_accept);
1237 case SSL_CTRL_SESS_ACCEPT_GOOD:
1238 return(ctx->stats.sess_accept_good);
1239 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1240 return(ctx->stats.sess_accept_renegotiate);
1241 case SSL_CTRL_SESS_HIT:
1242 return(ctx->stats.sess_hit);
1243 case SSL_CTRL_SESS_CB_HIT:
1244 return(ctx->stats.sess_cb_hit);
1245 case SSL_CTRL_SESS_MISSES:
1246 return(ctx->stats.sess_miss);
1247 case SSL_CTRL_SESS_TIMEOUTS:
1248 return(ctx->stats.sess_timeout);
1249 case SSL_CTRL_SESS_CACHE_FULL:
1250 return(ctx->stats.sess_cache_full);
1251 case SSL_CTRL_OPTIONS:
1252 return(ctx->options|=larg);
1253 case SSL_CTRL_CLEAR_OPTIONS:
1254 return(ctx->options&=~larg);
1256 return(ctx->mode|=larg);
1257 case SSL_CTRL_CLEAR_MODE:
1258 return(ctx->mode&=~larg);
1259 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1260 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1262 ctx->max_send_fragment = larg;
1264 case SSL_CTRL_CERT_FLAGS:
1265 return(ctx->cert->cert_flags|=larg);
1266 case SSL_CTRL_CLEAR_CERT_FLAGS:
1267 return(ctx->cert->cert_flags &=~larg);
1269 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1273 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1277 case SSL_CTRL_SET_MSG_CALLBACK:
1278 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1282 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1286 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1294 return((l > 0)?1:-1);
1297 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1298 const SSL_CIPHER * const *bp)
1302 l=(*ap)->id-(*bp)->id;
1306 return((l > 0)?1:-1);
1309 /** return a STACK of the ciphers available for the SSL and in order of
1311 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1315 if (s->cipher_list != NULL)
1317 return(s->cipher_list);
1319 else if ((s->ctx != NULL) &&
1320 (s->ctx->cipher_list != NULL))
1322 return(s->ctx->cipher_list);
1328 /** return a STACK of the ciphers available for the SSL and in order of
1330 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1334 if (s->cipher_list_by_id != NULL)
1336 return(s->cipher_list_by_id);
1338 else if ((s->ctx != NULL) &&
1339 (s->ctx->cipher_list_by_id != NULL))
1341 return(s->ctx->cipher_list_by_id);
1347 /** The old interface to get the same thing as SSL_get_ciphers() */
1348 const char *SSL_get_cipher_list(const SSL *s,int n)
1351 STACK_OF(SSL_CIPHER) *sk;
1353 if (s == NULL) return(NULL);
1354 sk=SSL_get_ciphers(s);
1355 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1357 c=sk_SSL_CIPHER_value(sk,n);
1358 if (c == NULL) return(NULL);
1362 /** specify the ciphers to be used by default by the SSL_CTX */
1363 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1365 STACK_OF(SSL_CIPHER) *sk;
1367 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1368 &ctx->cipher_list_by_id,str, ctx->cert);
1369 /* ssl_create_cipher_list may return an empty stack if it
1370 * was unable to find a cipher matching the given rule string
1371 * (for example if the rule string specifies a cipher which
1372 * has been disabled). This is not an error as far as
1373 * ssl_create_cipher_list is concerned, and hence
1374 * ctx->cipher_list and ctx->cipher_list_by_id has been
1378 else if (sk_SSL_CIPHER_num(sk) == 0)
1380 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1386 /** specify the ciphers to be used by the SSL */
1387 int SSL_set_cipher_list(SSL *s,const char *str)
1389 STACK_OF(SSL_CIPHER) *sk;
1391 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1392 &s->cipher_list_by_id,str, s->cert);
1393 /* see comment in SSL_CTX_set_cipher_list */
1396 else if (sk_SSL_CIPHER_num(sk) == 0)
1398 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1404 /* works well for SSLv2, not so good for SSLv3 */
1405 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1408 STACK_OF(SSL_CIPHER) *sk;
1412 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1417 sk=s->session->ciphers;
1419 if (sk_SSL_CIPHER_num(sk) == 0)
1422 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1426 c=sk_SSL_CIPHER_value(sk,i);
1444 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1445 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1451 int empty_reneg_info_scsv = !s->renegotiate;
1452 /* Set disabled masks for this session */
1453 ssl_set_client_disabled(s);
1455 if (sk == NULL) return(0);
1458 put_cb = s->method->put_cipher_by_char;
1460 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1462 c=sk_SSL_CIPHER_value(sk,i);
1463 /* Skip disabled ciphers */
1464 if (c->algorithm_ssl & ct->mask_ssl ||
1465 c->algorithm_mkey & ct->mask_k ||
1466 c->algorithm_auth & ct->mask_a)
1468 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1469 if (c->id == SSL3_CK_SCSV)
1471 if (!empty_reneg_info_scsv)
1474 empty_reneg_info_scsv = 0;
1480 /* If p == q, no ciphers; caller indicates an error.
1481 * Otherwise, add applicable SCSVs. */
1484 if (empty_reneg_info_scsv)
1486 static SSL_CIPHER scsv =
1488 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1490 j = put_cb(&scsv,p);
1492 #ifdef OPENSSL_RI_DEBUG
1493 fprintf(stderr, "TLS_EMPTY_RENEGOTIATION_INFO_SCSV sent by client\n");
1496 if (s->mode & SSL_MODE_SEND_FALLBACK_SCSV)
1498 static SSL_CIPHER scsv =
1500 0, NULL, SSL3_CK_FALLBACK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1502 j = put_cb(&scsv,p);
1510 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1511 STACK_OF(SSL_CIPHER) **skp)
1513 const SSL_CIPHER *c;
1514 STACK_OF(SSL_CIPHER) *sk;
1518 s->s3->send_connection_binding = 0;
1520 n=ssl_put_cipher_by_char(s,NULL,NULL);
1521 if (n == 0 || (num%n) != 0)
1523 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1526 if ((skp == NULL) || (*skp == NULL))
1527 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1531 sk_SSL_CIPHER_zero(sk);
1534 if (s->cert->ciphers_raw)
1535 OPENSSL_free(s->cert->ciphers_raw);
1536 s->cert->ciphers_raw = BUF_memdup(p, num);
1537 if (s->cert->ciphers_raw == NULL)
1539 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1542 s->cert->ciphers_rawlen = (size_t)num;
1544 for (i=0; i<num; i+=n)
1546 /* Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV */
1547 if (s->s3 && (n != 3 || !p[0]) &&
1548 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1549 (p[n-1] == (SSL3_CK_SCSV & 0xff)))
1551 /* SCSV fatal if renegotiating */
1554 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1555 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1558 s->s3->send_connection_binding = 1;
1560 #ifdef OPENSSL_RI_DEBUG
1561 fprintf(stderr, "SCSV received by server\n");
1566 /* Check for TLS_FALLBACK_SCSV */
1567 if ((n != 3 || !p[0]) &&
1568 (p[n-2] == ((SSL3_CK_FALLBACK_SCSV >> 8) & 0xff)) &&
1569 (p[n-1] == (SSL3_CK_FALLBACK_SCSV & 0xff)))
1571 /* The SCSV indicates that the client previously tried a higher version.
1572 * Fail if the current version is an unexpected downgrade. */
1573 if (!SSL_ctrl(s, SSL_CTRL_CHECK_PROTO_VERSION, 0, NULL))
1575 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_INAPPROPRIATE_FALLBACK);
1577 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_INAPPROPRIATE_FALLBACK);
1584 c=ssl_get_cipher_by_char(s,p);
1588 if (!sk_SSL_CIPHER_push(sk,c))
1590 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1600 if ((skp == NULL) || (*skp == NULL))
1601 sk_SSL_CIPHER_free(sk);
1606 #ifndef OPENSSL_NO_TLSEXT
1607 /** return a servername extension value if provided in Client Hello, or NULL.
1608 * So far, only host_name types are defined (RFC 3546).
1611 const char *SSL_get_servername(const SSL *s, const int type)
1613 if (type != TLSEXT_NAMETYPE_host_name)
1616 return s->session && !s->tlsext_hostname ?
1617 s->session->tlsext_hostname :
1621 int SSL_get_servername_type(const SSL *s)
1623 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1624 return TLSEXT_NAMETYPE_host_name;
1628 /* SSL_select_next_proto implements the standard protocol selection. It is
1629 * expected that this function is called from the callback set by
1630 * SSL_CTX_set_next_proto_select_cb.
1632 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
1633 * strings. The length byte itself is not included in the length. A byte
1634 * string of length 0 is invalid. No byte string may be truncated.
1636 * The current, but experimental algorithm for selecting the protocol is:
1638 * 1) If the server doesn't support NPN then this is indicated to the
1639 * callback. In this case, the client application has to abort the connection
1640 * or have a default application level protocol.
1642 * 2) If the server supports NPN, but advertises an empty list then the
1643 * client selects the first protcol in its list, but indicates via the
1644 * API that this fallback case was enacted.
1646 * 3) Otherwise, the client finds the first protocol in the server's list
1647 * that it supports and selects this protocol. This is because it's
1648 * assumed that the server has better information about which protocol
1649 * a client should use.
1651 * 4) If the client doesn't support any of the server's advertised
1652 * protocols, then this is treated the same as case 2.
1655 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or
1656 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1658 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)
1661 const unsigned char *result;
1662 int status = OPENSSL_NPN_UNSUPPORTED;
1664 /* For each protocol in server preference order, see if we support it. */
1665 for (i = 0; i < server_len; )
1667 for (j = 0; j < client_len; )
1669 if (server[i] == client[j] &&
1670 memcmp(&server[i+1], &client[j+1], server[i]) == 0)
1672 /* We found a match */
1673 result = &server[i];
1674 status = OPENSSL_NPN_NEGOTIATED;
1684 /* There's no overlap between our protocols and the server's list. */
1686 status = OPENSSL_NPN_NO_OVERLAP;
1689 *out = (unsigned char *) result + 1;
1690 *outlen = result[0];
1694 # ifndef OPENSSL_NO_NEXTPROTONEG
1695 /* SSL_get0_next_proto_negotiated sets *data and *len to point to the client's
1696 * requested protocol for this connection and returns 0. If the client didn't
1697 * request any protocol, then *data is set to NULL.
1699 * Note that the client can request any protocol it chooses. The value returned
1700 * from this function need not be a member of the list of supported protocols
1701 * provided by the callback.
1703 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, unsigned *len)
1705 *data = s->next_proto_negotiated;
1709 *len = s->next_proto_negotiated_len;
1713 /* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a
1714 * TLS server needs a list of supported protocols for Next Protocol
1715 * Negotiation. The returned list must be in wire format. The list is returned
1716 * by setting |out| to point to it and |outlen| to its length. This memory will
1717 * not be modified, but one should assume that the SSL* keeps a reference to
1720 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. Otherwise, no
1721 * such extension will be included in the ServerHello. */
1722 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)
1724 ctx->next_protos_advertised_cb = cb;
1725 ctx->next_protos_advertised_cb_arg = arg;
1728 /* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1729 * client needs to select a protocol from the server's provided list. |out|
1730 * must be set to point to the selected protocol (which may be within |in|).
1731 * The length of the protocol name must be written into |outlen|. The server's
1732 * advertised protocols are provided in |in| and |inlen|. The callback can
1733 * assume that |in| is syntactically valid.
1735 * The client must select a protocol. It is fatal to the connection if this
1736 * callback returns a value other than SSL_TLSEXT_ERR_OK.
1738 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)
1740 ctx->next_proto_select_cb = cb;
1741 ctx->next_proto_select_cb_arg = arg;
1745 /* SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1746 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1747 * length-prefixed strings).
1749 * Returns 0 on success. */
1750 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char* protos,
1751 unsigned protos_len)
1753 if (ctx->alpn_client_proto_list)
1754 OPENSSL_free(ctx->alpn_client_proto_list);
1756 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1757 if (!ctx->alpn_client_proto_list)
1759 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
1760 ctx->alpn_client_proto_list_len = protos_len;
1765 /* SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1766 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1767 * length-prefixed strings).
1769 * Returns 0 on success. */
1770 int SSL_set_alpn_protos(SSL *ssl, const unsigned char* protos,
1771 unsigned protos_len)
1773 if (ssl->alpn_client_proto_list)
1774 OPENSSL_free(ssl->alpn_client_proto_list);
1776 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1777 if (!ssl->alpn_client_proto_list)
1779 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
1780 ssl->alpn_client_proto_list_len = protos_len;
1785 /* SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is called
1786 * during ClientHello processing in order to select an ALPN protocol from the
1787 * client's list of offered protocols. */
1788 void SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx,
1789 int (*cb) (SSL *ssl,
1790 const unsigned char **out,
1791 unsigned char *outlen,
1792 const unsigned char *in,
1797 ctx->alpn_select_cb = cb;
1798 ctx->alpn_select_cb_arg = arg;
1801 /* SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
1802 * On return it sets |*data| to point to |*len| bytes of protocol name (not
1803 * including the leading length-prefix byte). If the server didn't respond with
1804 * a negotiated protocol then |*len| will be zero. */
1805 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1810 *data = ssl->s3->alpn_selected;
1814 *len = ssl->s3->alpn_selected_len;
1817 #endif /* !OPENSSL_NO_TLSEXT */
1819 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1820 const char *label, size_t llen, const unsigned char *p, size_t plen,
1823 if (s->version < TLS1_VERSION)
1826 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1831 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1836 ((unsigned int) a->session_id[0] )|
1837 ((unsigned int) a->session_id[1]<< 8L)|
1838 ((unsigned long)a->session_id[2]<<16L)|
1839 ((unsigned long)a->session_id[3]<<24L);
1843 /* NB: If this function (or indeed the hash function which uses a sort of
1844 * coarser function than this one) is changed, ensure
1845 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1846 * able to construct an SSL_SESSION that will collide with any existing session
1847 * with a matching session ID. */
1848 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1850 if (a->ssl_version != b->ssl_version)
1852 if (a->session_id_length != b->session_id_length)
1854 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1857 /* These wrapper functions should remain rather than redeclaring
1858 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1859 * variable. The reason is that the functions aren't static, they're exposed via
1861 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1862 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1864 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1870 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1875 if (FIPS_mode() && (meth->version < TLS1_VERSION))
1877 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1882 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1884 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1887 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1891 memset(ret,0,sizeof(SSL_CTX));
1895 ret->cert_store=NULL;
1896 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1897 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1898 ret->session_cache_head=NULL;
1899 ret->session_cache_tail=NULL;
1901 /* We take the system default */
1902 ret->session_timeout=meth->get_timeout();
1904 ret->new_session_cb=0;
1905 ret->remove_session_cb=0;
1906 ret->get_session_cb=0;
1907 ret->generate_session_id=0;
1909 memset((char *)&ret->stats,0,sizeof(ret->stats));
1912 ret->quiet_shutdown=0;
1914 /* ret->cipher=NULL;*/
1915 /* ret->s2->challenge=NULL;
1916 ret->master_key=NULL;
1918 ret->s2->conn_id=NULL; */
1920 ret->info_callback=NULL;
1922 ret->app_verify_callback=0;
1923 ret->app_verify_arg=NULL;
1925 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1927 ret->msg_callback=0;
1928 ret->msg_callback_arg=NULL;
1929 ret->verify_mode=SSL_VERIFY_NONE;
1931 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1933 ret->sid_ctx_length=0;
1934 ret->default_verify_callback=NULL;
1935 if ((ret->cert=ssl_cert_new()) == NULL)
1938 ret->default_passwd_callback=0;
1939 ret->default_passwd_callback_userdata=NULL;
1940 ret->client_cert_cb=0;
1941 ret->app_gen_cookie_cb=0;
1942 ret->app_verify_cookie_cb=0;
1944 ret->sessions=lh_SSL_SESSION_new();
1945 if (ret->sessions == NULL) goto err;
1946 ret->cert_store=X509_STORE_new();
1947 if (ret->cert_store == NULL) goto err;
1949 ssl_create_cipher_list(ret->method,
1950 &ret->cipher_list,&ret->cipher_list_by_id,
1951 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, ret->cert);
1952 if (ret->cipher_list == NULL
1953 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1955 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1959 ret->param = X509_VERIFY_PARAM_new();
1963 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1965 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1968 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1970 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1973 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1975 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1979 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1982 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1984 ret->extra_certs=NULL;
1985 /* No compression for DTLS */
1986 if (meth->version != DTLS1_VERSION)
1987 ret->comp_methods=SSL_COMP_get_compression_methods();
1989 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1991 #ifndef OPENSSL_NO_TLSEXT
1992 ret->tlsext_servername_callback = 0;
1993 ret->tlsext_servername_arg = NULL;
1994 /* Setup RFC4507 ticket keys */
1995 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1996 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1997 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1998 ret->options |= SSL_OP_NO_TICKET;
2000 ret->tlsext_status_cb = 0;
2001 ret->tlsext_status_arg = NULL;
2003 # ifndef OPENSSL_NO_NEXTPROTONEG
2004 ret->next_protos_advertised_cb = 0;
2005 ret->next_proto_select_cb = 0;
2008 #ifndef OPENSSL_NO_PSK
2009 ret->psk_identity_hint=NULL;
2010 ret->psk_client_callback=NULL;
2011 ret->psk_server_callback=NULL;
2013 #ifndef OPENSSL_NO_SRP
2014 SSL_CTX_SRP_CTX_init(ret);
2016 #ifndef OPENSSL_NO_BUF_FREELISTS
2017 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
2018 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
2019 if (!ret->rbuf_freelist)
2021 ret->rbuf_freelist->chunklen = 0;
2022 ret->rbuf_freelist->len = 0;
2023 ret->rbuf_freelist->head = NULL;
2024 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
2025 if (!ret->wbuf_freelist)
2027 OPENSSL_free(ret->rbuf_freelist);
2030 ret->wbuf_freelist->chunklen = 0;
2031 ret->wbuf_freelist->len = 0;
2032 ret->wbuf_freelist->head = NULL;
2034 #ifndef OPENSSL_NO_ENGINE
2035 ret->client_cert_engine = NULL;
2036 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2037 #define eng_strx(x) #x
2038 #define eng_str(x) eng_strx(x)
2039 /* Use specific client engine automatically... ignore errors */
2042 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2046 ENGINE_load_builtin_engines();
2047 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2049 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
2054 /* Default is to connect to non-RI servers. When RI is more widely
2055 * deployed might change this.
2057 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
2061 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
2063 if (ret != NULL) SSL_CTX_free(ret);
2068 static void SSL_COMP_free(SSL_COMP *comp)
2069 { OPENSSL_free(comp); }
2072 #ifndef OPENSSL_NO_BUF_FREELISTS
2074 ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
2076 SSL3_BUF_FREELIST_ENTRY *ent, *next;
2077 for (ent = list->head; ent; ent = next)
2086 void SSL_CTX_free(SSL_CTX *a)
2090 if (a == NULL) return;
2092 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
2094 REF_PRINT("SSL_CTX",a);
2100 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
2106 X509_VERIFY_PARAM_free(a->param);
2109 * Free internal session cache. However: the remove_cb() may reference
2110 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2111 * after the sessions were flushed.
2112 * As the ex_data handling routines might also touch the session cache,
2113 * the most secure solution seems to be: empty (flush) the cache, then
2114 * free ex_data, then finally free the cache.
2115 * (See ticket [openssl.org #212].)
2117 if (a->sessions != NULL)
2118 SSL_CTX_flush_sessions(a,0);
2120 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
2122 if (a->sessions != NULL)
2123 lh_SSL_SESSION_free(a->sessions);
2125 if (a->cert_store != NULL)
2126 X509_STORE_free(a->cert_store);
2127 if (a->cipher_list != NULL)
2128 sk_SSL_CIPHER_free(a->cipher_list);
2129 if (a->cipher_list_by_id != NULL)
2130 sk_SSL_CIPHER_free(a->cipher_list_by_id);
2131 if (a->cert != NULL)
2132 ssl_cert_free(a->cert);
2133 if (a->client_CA != NULL)
2134 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
2135 if (a->extra_certs != NULL)
2136 sk_X509_pop_free(a->extra_certs,X509_free);
2137 #if 0 /* This should never be done, since it removes a global database */
2138 if (a->comp_methods != NULL)
2139 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
2141 a->comp_methods = NULL;
2144 #ifndef OPENSSL_NO_SRTP
2145 if (a->srtp_profiles)
2146 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
2149 #ifndef OPENSSL_NO_PSK
2150 if (a->psk_identity_hint)
2151 OPENSSL_free(a->psk_identity_hint);
2153 #ifndef OPENSSL_NO_SRP
2154 SSL_CTX_SRP_CTX_free(a);
2156 #ifndef OPENSSL_NO_ENGINE
2157 if (a->client_cert_engine)
2158 ENGINE_finish(a->client_cert_engine);
2161 #ifndef OPENSSL_NO_BUF_FREELISTS
2162 if (a->wbuf_freelist)
2163 ssl_buf_freelist_free(a->wbuf_freelist);
2164 if (a->rbuf_freelist)
2165 ssl_buf_freelist_free(a->rbuf_freelist);
2167 #ifndef OPENSSL_NO_TLSEXT
2168 # ifndef OPENSSL_NO_EC
2169 if (a->tlsext_ecpointformatlist)
2170 OPENSSL_free(a->tlsext_ecpointformatlist);
2171 if (a->tlsext_ellipticcurvelist)
2172 OPENSSL_free(a->tlsext_ellipticcurvelist);
2173 # endif /* OPENSSL_NO_EC */
2174 if (a->alpn_client_proto_list != NULL)
2175 OPENSSL_free(a->alpn_client_proto_list);
2181 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2183 ctx->default_passwd_callback=cb;
2186 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
2188 ctx->default_passwd_callback_userdata=u;
2191 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
2193 ctx->app_verify_callback=cb;
2194 ctx->app_verify_arg=arg;
2197 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
2199 ctx->verify_mode=mode;
2200 ctx->default_verify_callback=cb;
2203 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
2205 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2208 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb)(SSL *ssl, void *arg), void *arg)
2210 ssl_cert_set_cert_cb(c->cert, cb, arg);
2213 void SSL_set_cert_cb(SSL *s, int (*cb)(SSL *ssl, void *arg), void *arg)
2215 ssl_cert_set_cert_cb(s->cert, cb, arg);
2218 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
2221 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
2222 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
2223 int rsa_tmp_export,dh_tmp_export,kl;
2224 unsigned long mask_k,mask_a,emask_k,emask_a;
2225 #ifndef OPENSSL_NO_ECDSA
2226 int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
2228 #ifndef OPENSSL_NO_ECDH
2229 int have_ecdh_tmp, ecdh_ok;
2231 #ifndef OPENSSL_NO_EC
2233 EVP_PKEY *ecc_pkey = NULL;
2234 int signature_nid = 0, pk_nid = 0, md_nid = 0;
2236 if (c == NULL) return;
2238 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
2240 #ifndef OPENSSL_NO_RSA
2241 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2242 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
2243 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
2245 rsa_tmp=rsa_tmp_export=0;
2247 #ifndef OPENSSL_NO_DH
2248 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
2249 dh_tmp_export=(c->dh_tmp_cb != NULL ||
2250 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
2252 dh_tmp=dh_tmp_export=0;
2255 #ifndef OPENSSL_NO_ECDH
2256 have_ecdh_tmp=(c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
2258 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
2259 rsa_enc= cpk->valid_flags & CERT_PKEY_VALID;
2260 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2261 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2262 rsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2263 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2264 dsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2265 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
2266 dh_rsa= cpk->valid_flags & CERT_PKEY_VALID;
2267 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2268 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
2269 /* FIX THIS EAY EAY EAY */
2270 dh_dsa= cpk->valid_flags & CERT_PKEY_VALID;
2271 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2272 cpk= &(c->pkeys[SSL_PKEY_ECC]);
2273 #ifndef OPENSSL_NO_EC
2274 have_ecc_cert= cpk->valid_flags & CERT_PKEY_VALID;
2284 fprintf(stderr,"rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2285 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
2286 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
2289 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2290 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2291 mask_k |= SSL_kGOST;
2292 mask_a |= SSL_aGOST01;
2294 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2295 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2296 mask_k |= SSL_kGOST;
2297 mask_a |= SSL_aGOST94;
2300 if (rsa_enc || (rsa_tmp && rsa_sign))
2302 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2306 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2307 if ( (dh_tmp || dh_rsa || dh_dsa) &&
2308 (rsa_enc || rsa_sign || dsa_sign))
2310 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
2311 (rsa_enc || rsa_sign || dsa_sign))
2321 if (dh_rsa) mask_k|=SSL_kDHr;
2322 if (dh_rsa_export) emask_k|=SSL_kDHr;
2324 if (dh_dsa) mask_k|=SSL_kDHd;
2325 if (dh_dsa_export) emask_k|=SSL_kDHd;
2327 if (emask_k & (SSL_kDHr|SSL_kDHd))
2330 if (rsa_enc || rsa_sign)
2345 #ifndef OPENSSL_NO_KRB5
2352 /* An ECC certificate may be usable for ECDH and/or
2353 * ECDSA cipher suites depending on the key usage extension.
2355 #ifndef OPENSSL_NO_EC
2358 cpk = &c->pkeys[SSL_PKEY_ECC];
2360 /* This call populates extension flags (ex_flags) */
2361 X509_check_purpose(x, -1, 0);
2362 #ifndef OPENSSL_NO_ECDH
2363 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2364 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2366 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2367 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2368 if (!(cpk->valid_flags & CERT_PKEY_SIGN))
2370 ecc_pkey = X509_get_pubkey(x);
2371 ecc_pkey_size = (ecc_pkey != NULL) ?
2372 EVP_PKEY_bits(ecc_pkey) : 0;
2373 EVP_PKEY_free(ecc_pkey);
2374 if ((x->sig_alg) && (x->sig_alg->algorithm))
2376 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2377 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2379 #ifndef OPENSSL_NO_ECDH
2383 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa)
2387 if (ecc_pkey_size <= 163)
2389 emask_k|=SSL_kECDHr;
2394 if (pk_nid == NID_X9_62_id_ecPublicKey)
2398 if (ecc_pkey_size <= 163)
2400 emask_k|=SSL_kECDHe;
2406 #ifndef OPENSSL_NO_ECDSA
2410 emask_a|=SSL_aECDSA;
2416 #ifndef OPENSSL_NO_ECDH
2420 emask_k|=SSL_kEECDH;
2424 #ifndef OPENSSL_NO_PSK
2427 emask_k |= SSL_kPSK;
2428 emask_a |= SSL_aPSK;
2433 c->export_mask_k=emask_k;
2434 c->export_mask_a=emask_a;
2438 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2439 #define ku_reject(x, usage) \
2440 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2442 #ifndef OPENSSL_NO_EC
2444 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2446 unsigned long alg_k, alg_a;
2447 EVP_PKEY *pkey = NULL;
2449 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2450 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2452 alg_k = cs->algorithm_mkey;
2453 alg_a = cs->algorithm_auth;
2455 if (SSL_C_IS_EXPORT(cs))
2457 /* ECDH key length in export ciphers must be <= 163 bits */
2458 pkey = X509_get_pubkey(x);
2459 if (pkey == NULL) return 0;
2460 keysize = EVP_PKEY_bits(pkey);
2461 EVP_PKEY_free(pkey);
2462 if (keysize > 163) return 0;
2465 /* This call populates the ex_flags field correctly */
2466 X509_check_purpose(x, -1, 0);
2467 if ((x->sig_alg) && (x->sig_alg->algorithm))
2469 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2470 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2472 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
2474 /* key usage, if present, must allow key agreement */
2475 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
2477 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2480 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION)
2482 /* signature alg must be ECDSA */
2483 if (pk_nid != NID_X9_62_id_ecPublicKey)
2485 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2489 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION)
2491 /* signature alg must be RSA */
2493 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa)
2495 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2500 if (alg_a & SSL_aECDSA)
2502 /* key usage, if present, must allow signing */
2503 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
2505 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2510 return 1; /* all checks are ok */
2515 static int ssl_get_server_cert_index(const SSL *s)
2518 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2519 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2520 idx = SSL_PKEY_RSA_SIGN;
2522 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX,ERR_R_INTERNAL_ERROR);
2526 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s)
2532 if (!s->s3 || !s->s3->tmp.new_cipher)
2534 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2536 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2537 /* Broken protocol test: return last used certificate: which may
2538 * mismatch the one expected.
2540 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2544 i = ssl_get_server_cert_index(s);
2546 /* This may or may not be an error. */
2551 return &c->pkeys[i];
2554 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher, const EVP_MD **pmd)
2556 unsigned long alg_a;
2560 alg_a = cipher->algorithm_auth;
2563 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2564 /* Broken protocol test: use last key: which may
2565 * mismatch the one expected.
2567 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2568 idx = c->key - c->pkeys;
2572 if ((alg_a & SSL_aDSS) &&
2573 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2574 idx = SSL_PKEY_DSA_SIGN;
2575 else if (alg_a & SSL_aRSA)
2577 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2578 idx = SSL_PKEY_RSA_SIGN;
2579 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2580 idx = SSL_PKEY_RSA_ENC;
2582 else if ((alg_a & SSL_aECDSA) &&
2583 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2587 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2591 *pmd = c->pkeys[idx].digest;
2592 return c->pkeys[idx].privatekey;
2595 #ifndef OPENSSL_NO_TLSEXT
2596 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2597 size_t *serverinfo_length)
2601 *serverinfo_length = 0;
2604 i = ssl_get_server_cert_index(s);
2608 if (c->pkeys[i].serverinfo == NULL)
2611 *serverinfo = c->pkeys[i].serverinfo;
2612 *serverinfo_length = c->pkeys[i].serverinfo_length;
2617 void ssl_update_cache(SSL *s,int mode)
2621 /* If the session_id_length is 0, we are not supposed to cache it,
2622 * and it would be rather hard to do anyway :-) */
2623 if (s->session->session_id_length == 0) return;
2625 i=s->session_ctx->session_cache_mode;
2626 if ((i & mode) && (!s->hit)
2627 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2628 || SSL_CTX_add_session(s->session_ctx,s->session))
2629 && (s->session_ctx->new_session_cb != NULL))
2631 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2632 if (!s->session_ctx->new_session_cb(s,s->session))
2633 SSL_SESSION_free(s->session);
2636 /* auto flush every 255 connections */
2637 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2638 ((i & mode) == mode))
2640 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2641 ?s->session_ctx->stats.sess_connect_good
2642 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2644 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2649 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2654 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2659 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2664 if (s->method != meth)
2666 if (s->handshake_func != NULL)
2667 conn=(s->handshake_func == s->method->ssl_connect);
2669 if (s->method->version == meth->version)
2673 s->method->ssl_free(s);
2675 ret=s->method->ssl_new(s);
2679 s->handshake_func=meth->ssl_connect;
2681 s->handshake_func=meth->ssl_accept;
2686 int SSL_get_error(const SSL *s,int i)
2692 if (i > 0) return(SSL_ERROR_NONE);
2694 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2695 * etc, where we do encode the error */
2696 if ((l=ERR_peek_error()) != 0)
2698 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2699 return(SSL_ERROR_SYSCALL);
2701 return(SSL_ERROR_SSL);
2704 if ((i < 0) && SSL_want_read(s))
2706 bio=SSL_get_rbio(s);
2707 if (BIO_should_read(bio))
2708 return(SSL_ERROR_WANT_READ);
2709 else if (BIO_should_write(bio))
2710 /* This one doesn't make too much sense ... We never try
2711 * to write to the rbio, and an application program where
2712 * rbio and wbio are separate couldn't even know what it
2714 * However if we ever set s->rwstate incorrectly
2715 * (so that we have SSL_want_read(s) instead of
2716 * SSL_want_write(s)) and rbio and wbio *are* the same,
2717 * this test works around that bug; so it might be safer
2719 return(SSL_ERROR_WANT_WRITE);
2720 else if (BIO_should_io_special(bio))
2722 reason=BIO_get_retry_reason(bio);
2723 if (reason == BIO_RR_CONNECT)
2724 return(SSL_ERROR_WANT_CONNECT);
2725 else if (reason == BIO_RR_ACCEPT)
2726 return(SSL_ERROR_WANT_ACCEPT);
2728 return(SSL_ERROR_SYSCALL); /* unknown */
2732 if ((i < 0) && SSL_want_write(s))
2734 bio=SSL_get_wbio(s);
2735 if (BIO_should_write(bio))
2736 return(SSL_ERROR_WANT_WRITE);
2737 else if (BIO_should_read(bio))
2738 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2739 return(SSL_ERROR_WANT_READ);
2740 else if (BIO_should_io_special(bio))
2742 reason=BIO_get_retry_reason(bio);
2743 if (reason == BIO_RR_CONNECT)
2744 return(SSL_ERROR_WANT_CONNECT);
2745 else if (reason == BIO_RR_ACCEPT)
2746 return(SSL_ERROR_WANT_ACCEPT);
2748 return(SSL_ERROR_SYSCALL);
2751 if ((i < 0) && SSL_want_x509_lookup(s))
2753 return(SSL_ERROR_WANT_X509_LOOKUP);
2758 if (s->version == SSL2_VERSION)
2760 /* assume it is the socket being closed */
2761 return(SSL_ERROR_ZERO_RETURN);
2765 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2766 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2767 return(SSL_ERROR_ZERO_RETURN);
2770 return(SSL_ERROR_SYSCALL);
2773 int SSL_do_handshake(SSL *s)
2777 if (s->handshake_func == NULL)
2779 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2783 s->method->ssl_renegotiate_check(s);
2785 if (SSL_in_init(s) || SSL_in_before(s))
2787 ret=s->handshake_func(s);
2792 /* For the next 2 functions, SSL_clear() sets shutdown and so
2793 * one of these calls will reset it */
2794 void SSL_set_accept_state(SSL *s)
2798 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2799 s->handshake_func=s->method->ssl_accept;
2800 /* clear the current cipher */
2801 ssl_clear_cipher_ctx(s);
2802 ssl_clear_hash_ctx(&s->read_hash);
2803 ssl_clear_hash_ctx(&s->write_hash);
2806 void SSL_set_connect_state(SSL *s)
2810 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2811 s->handshake_func=s->method->ssl_connect;
2812 /* clear the current cipher */
2813 ssl_clear_cipher_ctx(s);
2814 ssl_clear_hash_ctx(&s->read_hash);
2815 ssl_clear_hash_ctx(&s->write_hash);
2818 int ssl_undefined_function(SSL *s)
2820 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2824 int ssl_undefined_void_function(void)
2826 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2830 int ssl_undefined_const_function(const SSL *s)
2832 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2836 SSL_METHOD *ssl_bad_method(int ver)
2838 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2842 const char *SSL_get_version(const SSL *s)
2844 if (s->version == TLS1_2_VERSION)
2846 else if (s->version == TLS1_1_VERSION)
2848 else if (s->version == TLS1_VERSION)
2850 else if (s->version == SSL3_VERSION)
2852 else if (s->version == SSL2_VERSION)
2858 SSL *SSL_dup(SSL *s)
2860 STACK_OF(X509_NAME) *sk;
2865 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2868 ret->version = s->version;
2869 ret->type = s->type;
2870 ret->method = s->method;
2872 if (s->session != NULL)
2874 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2875 SSL_copy_session_id(ret,s);
2879 /* No session has been established yet, so we have to expect
2880 * that s->cert or ret->cert will be changed later --
2881 * they should not both point to the same object,
2882 * and thus we can't use SSL_copy_session_id. */
2884 ret->method->ssl_free(ret);
2885 ret->method = s->method;
2886 ret->method->ssl_new(ret);
2888 if (s->cert != NULL)
2890 if (ret->cert != NULL)
2892 ssl_cert_free(ret->cert);
2894 ret->cert = ssl_cert_dup(s->cert);
2895 if (ret->cert == NULL)
2899 SSL_set_session_id_context(ret,
2900 s->sid_ctx, s->sid_ctx_length);
2903 ret->options=s->options;
2905 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2906 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2907 ret->msg_callback = s->msg_callback;
2908 ret->msg_callback_arg = s->msg_callback_arg;
2909 SSL_set_verify(ret,SSL_get_verify_mode(s),
2910 SSL_get_verify_callback(s));
2911 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2912 ret->generate_session_id = s->generate_session_id;
2914 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2916 ret->debug=s->debug;
2918 /* copy app data, a little dangerous perhaps */
2919 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2922 /* setup rbio, and wbio */
2923 if (s->rbio != NULL)
2925 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2928 if (s->wbio != NULL)
2930 if (s->wbio != s->rbio)
2932 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2936 ret->wbio=ret->rbio;
2938 ret->rwstate = s->rwstate;
2939 ret->in_handshake = s->in_handshake;
2940 ret->handshake_func = s->handshake_func;
2941 ret->server = s->server;
2942 ret->renegotiate = s->renegotiate;
2943 ret->new_session = s->new_session;
2944 ret->quiet_shutdown = s->quiet_shutdown;
2945 ret->shutdown=s->shutdown;
2946 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2947 ret->rstate=s->rstate;
2948 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2951 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2953 /* dup the cipher_list and cipher_list_by_id stacks */
2954 if (s->cipher_list != NULL)
2956 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2959 if (s->cipher_list_by_id != NULL)
2960 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2964 /* Dup the client_CA list */
2965 if (s->client_CA != NULL)
2967 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2969 for (i=0; i<sk_X509_NAME_num(sk); i++)
2971 xn=sk_X509_NAME_value(sk,i);
2972 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2983 if (ret != NULL) SSL_free(ret);
2989 void ssl_clear_cipher_ctx(SSL *s)
2991 if (s->enc_read_ctx != NULL)
2993 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2994 OPENSSL_free(s->enc_read_ctx);
2995 s->enc_read_ctx=NULL;
2997 if (s->enc_write_ctx != NULL)
2999 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
3000 OPENSSL_free(s->enc_write_ctx);
3001 s->enc_write_ctx=NULL;
3003 #ifndef OPENSSL_NO_COMP
3004 if (s->expand != NULL)
3006 COMP_CTX_free(s->expand);
3009 if (s->compress != NULL)
3011 COMP_CTX_free(s->compress);
3017 X509 *SSL_get_certificate(const SSL *s)
3019 if (s->cert != NULL)
3020 return(s->cert->key->x509);
3025 EVP_PKEY *SSL_get_privatekey(const SSL *s)
3027 if (s->cert != NULL)
3028 return(s->cert->key->privatekey);
3033 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
3035 if (ctx->cert != NULL)
3036 return ctx->cert->key->x509;
3041 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
3043 if (ctx->cert != NULL)
3044 return ctx->cert->key->privatekey;
3049 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
3051 if ((s->session != NULL) && (s->session->cipher != NULL))
3052 return(s->session->cipher);
3055 #ifdef OPENSSL_NO_COMP
3056 const void *SSL_get_current_compression(SSL *s)
3060 const void *SSL_get_current_expansion(SSL *s)
3066 const COMP_METHOD *SSL_get_current_compression(SSL *s)
3068 if (s->compress != NULL)
3069 return(s->compress->meth);
3073 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
3075 if (s->expand != NULL)
3076 return(s->expand->meth);
3081 int ssl_init_wbio_buffer(SSL *s,int push)
3085 if (s->bbio == NULL)
3087 bbio=BIO_new(BIO_f_buffer());
3088 if (bbio == NULL) return(0);
3094 if (s->bbio == s->wbio)
3095 s->wbio=BIO_pop(s->wbio);
3097 (void)BIO_reset(bbio);
3098 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
3099 if (!BIO_set_read_buffer_size(bbio,1))
3101 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
3106 if (s->wbio != bbio)
3107 s->wbio=BIO_push(bbio,s->wbio);
3111 if (s->wbio == bbio)
3112 s->wbio=BIO_pop(bbio);
3117 void ssl_free_wbio_buffer(SSL *s)
3119 if (s->bbio == NULL) return;
3121 if (s->bbio == s->wbio)
3123 /* remove buffering */
3124 s->wbio=BIO_pop(s->wbio);
3125 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
3126 assert(s->wbio != NULL);
3133 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
3135 ctx->quiet_shutdown=mode;
3138 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
3140 return(ctx->quiet_shutdown);
3143 void SSL_set_quiet_shutdown(SSL *s,int mode)
3145 s->quiet_shutdown=mode;
3148 int SSL_get_quiet_shutdown(const SSL *s)
3150 return(s->quiet_shutdown);
3153 void SSL_set_shutdown(SSL *s,int mode)
3158 int SSL_get_shutdown(const SSL *s)
3160 return(s->shutdown);
3163 int SSL_version(const SSL *s)
3168 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
3173 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
3175 CERT *ocert = ssl->cert;
3176 if (ssl->ctx == ctx)
3178 #ifndef OPENSSL_NO_TLSEXT
3180 ctx = ssl->initial_ctx;
3182 ssl->cert = ssl_cert_dup(ctx->cert);
3185 /* Preserve any already negotiated parameters */
3188 ssl->cert->peer_sigalgs = ocert->peer_sigalgs;
3189 ssl->cert->peer_sigalgslen = ocert->peer_sigalgslen;
3190 ocert->peer_sigalgs = NULL;
3191 ssl->cert->ciphers_raw = ocert->ciphers_raw;
3192 ssl->cert->ciphers_rawlen = ocert->ciphers_rawlen;
3193 ocert->ciphers_raw = NULL;
3195 ssl_cert_free(ocert);
3197 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
3198 if (ssl->ctx != NULL)
3199 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3204 #ifndef OPENSSL_NO_STDIO
3205 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3207 return(X509_STORE_set_default_paths(ctx->cert_store));
3210 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3213 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
3217 void SSL_set_info_callback(SSL *ssl,
3218 void (*cb)(const SSL *ssl,int type,int val))
3220 ssl->info_callback=cb;
3223 /* One compiler (Diab DCC) doesn't like argument names in returned
3224 function pointer. */
3225 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
3227 return ssl->info_callback;
3230 int SSL_state(const SSL *ssl)
3235 void SSL_set_state(SSL *ssl, int state)
3240 void SSL_set_verify_result(SSL *ssl,long arg)
3242 ssl->verify_result=arg;
3245 long SSL_get_verify_result(const SSL *ssl)
3247 return(ssl->verify_result);
3250 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3251 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3253 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
3254 new_func, dup_func, free_func);
3257 int SSL_set_ex_data(SSL *s,int idx,void *arg)
3259 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3262 void *SSL_get_ex_data(const SSL *s,int idx)
3264 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3267 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3268 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3270 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3271 new_func, dup_func, free_func);
3274 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
3276 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3279 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
3281 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3289 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3291 return(ctx->cert_store);
3294 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
3296 if (ctx->cert_store != NULL)
3297 X509_STORE_free(ctx->cert_store);
3298 ctx->cert_store=store;
3301 int SSL_want(const SSL *s)
3307 * \brief Set the callback for generating temporary RSA keys.
3308 * \param ctx the SSL context.
3309 * \param cb the callback
3312 #ifndef OPENSSL_NO_RSA
3313 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
3317 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3320 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
3324 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3330 * \brief The RSA temporary key callback function.
3331 * \param ssl the SSL session.
3332 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3333 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3334 * of the required key in bits.
3335 * \return the temporary RSA key.
3336 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3339 RSA *cb(SSL *ssl,int is_export,int keylength)
3344 * \brief Set the callback for generating temporary DH keys.
3345 * \param ctx the SSL context.
3346 * \param dh the callback
3349 #ifndef OPENSSL_NO_DH
3350 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
3353 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3356 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
3359 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3363 #ifndef OPENSSL_NO_ECDH
3364 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3367 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3370 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3373 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3377 #ifndef OPENSSL_NO_PSK
3378 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3380 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3382 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3385 if (ctx->psk_identity_hint != NULL)
3386 OPENSSL_free(ctx->psk_identity_hint);
3387 if (identity_hint != NULL)
3389 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3390 if (ctx->psk_identity_hint == NULL)
3394 ctx->psk_identity_hint = NULL;
3398 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3403 if (s->session == NULL)
3404 return 1; /* session not created yet, ignored */
3406 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3408 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3411 if (s->session->psk_identity_hint != NULL)
3412 OPENSSL_free(s->session->psk_identity_hint);
3413 if (identity_hint != NULL)
3415 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3416 if (s->session->psk_identity_hint == NULL)
3420 s->session->psk_identity_hint = NULL;
3424 const char *SSL_get_psk_identity_hint(const SSL *s)
3426 if (s == NULL || s->session == NULL)
3428 return(s->session->psk_identity_hint);
3431 const char *SSL_get_psk_identity(const SSL *s)
3433 if (s == NULL || s->session == NULL)
3435 return(s->session->psk_identity);
3438 void SSL_set_psk_client_callback(SSL *s,
3439 unsigned int (*cb)(SSL *ssl, const char *hint,
3440 char *identity, unsigned int max_identity_len, unsigned char *psk,
3441 unsigned int max_psk_len))
3443 s->psk_client_callback = cb;
3446 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3447 unsigned int (*cb)(SSL *ssl, const char *hint,
3448 char *identity, unsigned int max_identity_len, unsigned char *psk,
3449 unsigned int max_psk_len))
3451 ctx->psk_client_callback = cb;
3454 void SSL_set_psk_server_callback(SSL *s,
3455 unsigned int (*cb)(SSL *ssl, const char *identity,
3456 unsigned char *psk, unsigned int max_psk_len))
3458 s->psk_server_callback = cb;
3461 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3462 unsigned int (*cb)(SSL *ssl, const char *identity,
3463 unsigned char *psk, unsigned int max_psk_len))
3465 ctx->psk_server_callback = cb;
3469 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))
3471 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3473 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))
3475 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3478 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3479 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
3480 * any. If EVP_MD pointer is passed, initializes ctx with this md
3481 * Returns newly allocated ctx;
3484 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
3486 ssl_clear_hash_ctx(hash);
3487 *hash = EVP_MD_CTX_create();
3488 if (md) EVP_DigestInit_ex(*hash,md,NULL);
3491 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3494 if (*hash) EVP_MD_CTX_destroy(*hash);
3498 void SSL_set_debug(SSL *s, int debug)
3503 int SSL_cache_hit(SSL *s)
3508 int SSL_is_server(SSL *s)
3513 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3514 #include "../crypto/bio/bss_file.c"
3517 IMPLEMENT_STACK_OF(SSL_CIPHER)
3518 IMPLEMENT_STACK_OF(SSL_COMP)
3519 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,