1 /*! \file ssl/ssl_lib.c
2 * \brief Version independent SSL functions.
4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
7 * This package is an SSL implementation written
8 * by Eric Young (eay@cryptsoft.com).
9 * The implementation was written so as to conform with Netscapes SSL.
11 * This library is free for commercial and non-commercial use as long as
12 * the following conditions are aheared to. The following conditions
13 * apply to all code found in this distribution, be it the RC4, RSA,
14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
15 * included with this distribution is covered by the same copyright terms
16 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
18 * Copyright remains Eric Young's, and as such any Copyright notices in
19 * the code are not to be removed.
20 * If this package is used in a product, Eric Young should be given attribution
21 * as the author of the parts of the library used.
22 * This can be in the form of a textual message at program startup or
23 * in documentation (online or textual) provided with the package.
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
28 * 1. Redistributions of source code must retain the copyright
29 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 * 3. All advertising materials mentioning features or use of this software
34 * must display the following acknowledgement:
35 * "This product includes cryptographic software written by
36 * Eric Young (eay@cryptsoft.com)"
37 * The word 'cryptographic' can be left out if the rouines from the library
38 * being used are not cryptographic related :-).
39 * 4. If you include any Windows specific code (or a derivative thereof) from
40 * the apps directory (application code) you must include an acknowledgement:
41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * The licence and distribution terms for any publically available version or
56 * derivative of this code cannot be changed. i.e. this code cannot simply be
57 * copied and put under another distribution licence
58 * [including the GNU Public Licence.]
60 /* ====================================================================
61 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
67 * 1. Redistributions of source code must retain the above copyright
68 * notice, this list of conditions and the following disclaimer.
70 * 2. Redistributions in binary form must reproduce the above copyright
71 * notice, this list of conditions and the following disclaimer in
72 * the documentation and/or other materials provided with the
75 * 3. All advertising materials mentioning features or use of this
76 * software must display the following acknowledgment:
77 * "This product includes software developed by the OpenSSL Project
78 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
80 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
81 * endorse or promote products derived from this software without
82 * prior written permission. For written permission, please contact
83 * openssl-core@openssl.org.
85 * 5. Products derived from this software may not be called "OpenSSL"
86 * nor may "OpenSSL" appear in their names without prior written
87 * permission of the OpenSSL Project.
89 * 6. Redistributions of any form whatsoever must retain the following
91 * "This product includes software developed by the OpenSSL Project
92 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
94 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
95 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
97 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
98 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
99 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
100 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
101 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
102 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
103 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
104 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
105 * OF THE POSSIBILITY OF SUCH DAMAGE.
106 * ====================================================================
108 * This product includes cryptographic software written by Eric Young
109 * (eay@cryptsoft.com). This product includes software written by Tim
110 * Hudson (tjh@cryptsoft.com).
113 /* ====================================================================
114 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
115 * ECC cipher suite support in OpenSSL originally developed by
116 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
118 /* ====================================================================
119 * Copyright 2005 Nokia. All rights reserved.
121 * The portions of the attached software ("Contribution") is developed by
122 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
125 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
126 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
127 * support (see RFC 4279) to OpenSSL.
129 * No patent licenses or other rights except those expressly stated in
130 * the OpenSSL open source license shall be deemed granted or received
131 * expressly, by implication, estoppel, or otherwise.
133 * No assurances are provided by Nokia that the Contribution does not
134 * infringe the patent or other intellectual property rights of any third
135 * party or that the license provides you with all the necessary rights
136 * to make use of the Contribution.
138 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
139 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
140 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
141 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
149 #include "ssl_locl.h"
150 #include "kssl_lcl.h"
151 #include <openssl/objects.h>
152 #include <openssl/lhash.h>
153 #include <openssl/x509v3.h>
154 #include <openssl/rand.h>
155 #include <openssl/ocsp.h>
156 #ifndef OPENSSL_NO_DH
157 #include <openssl/dh.h>
159 #ifndef OPENSSL_NO_ENGINE
160 #include <openssl/engine.h>
163 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
165 SSL3_ENC_METHOD ssl3_undef_enc_method={
166 /* evil casts, but these functions are only called if there's a library bug */
167 (int (*)(SSL *,int))ssl_undefined_function,
168 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
169 ssl_undefined_function,
170 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
171 (int (*)(SSL*, int))ssl_undefined_function,
172 (int (*)(SSL *, const char*, int, unsigned char *))ssl_undefined_function,
173 0, /* finish_mac_length */
174 (int (*)(SSL *, int, unsigned char *))ssl_undefined_function,
175 NULL, /* client_finished_label */
176 0, /* client_finished_label_len */
177 NULL, /* server_finished_label */
178 0, /* server_finished_label_len */
179 (int (*)(int))ssl_undefined_function,
180 (int (*)(SSL *, unsigned char *, size_t, const char *,
181 size_t, const unsigned char *, size_t,
182 int use_context)) ssl_undefined_function,
185 int SSL_clear(SSL *s)
188 if (s->method == NULL)
190 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
194 if (ssl_clear_bad_session(s))
196 SSL_SESSION_free(s->session);
204 #if 0 /* Disabled since version 1.10 of this file (early return not
205 * needed because SSL_clear is not called when doing renegotiation) */
206 /* This is set if we are doing dynamic renegotiation so keep
207 * the old cipher. It is sort of a SSL_clear_lite :-) */
208 if (s->renegotiate) return(1);
212 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
219 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
221 s->version=s->method->version;
222 s->client_version=s->version;
223 s->rwstate=SSL_NOTHING;
224 s->rstate=SSL_ST_READ_HEADER;
226 s->read_ahead=s->ctx->read_ahead;
229 if (s->init_buf != NULL)
231 BUF_MEM_free(s->init_buf);
235 ssl_clear_cipher_ctx(s);
236 ssl_clear_hash_ctx(&s->read_hash);
237 ssl_clear_hash_ctx(&s->write_hash);
242 /* Check to see if we were changed into a different method, if
243 * so, revert back if we are not doing session-id reuse. */
244 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
246 s->method->ssl_free(s);
247 s->method=s->ctx->method;
248 if (!s->method->ssl_new(s))
253 s->method->ssl_clear(s);
257 /** Used to change an SSL_CTXs default SSL method type */
258 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,const SSL_METHOD *meth)
260 STACK_OF(SSL_CIPHER) *sk;
264 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
265 &(ctx->cipher_list_by_id),
266 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, ctx->cert);
267 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
269 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
275 SSL *SSL_new(SSL_CTX *ctx)
281 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
284 if (ctx->method == NULL)
286 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
290 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
291 if (s == NULL) goto err;
292 memset(s,0,sizeof(SSL));
294 #ifndef OPENSSL_NO_KRB5
295 s->kssl_ctx = kssl_ctx_new();
296 #endif /* OPENSSL_NO_KRB5 */
298 s->options=ctx->options;
300 s->max_cert_list=ctx->max_cert_list;
302 if (ctx->cert != NULL)
304 /* Earlier library versions used to copy the pointer to
305 * the CERT, not its contents; only when setting new
306 * parameters for the per-SSL copy, ssl_cert_new would be
307 * called (and the direct reference to the per-SSL_CTX
308 * settings would be lost, but those still were indirectly
309 * accessed for various purposes, and for that reason they
310 * used to be known as s->ctx->default_cert).
311 * Now we don't look at the SSL_CTX's CERT after having
312 * duplicated it once. */
314 s->cert = ssl_cert_dup(ctx->cert);
319 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
321 s->read_ahead=ctx->read_ahead;
322 s->msg_callback=ctx->msg_callback;
323 s->msg_callback_arg=ctx->msg_callback_arg;
324 s->verify_mode=ctx->verify_mode;
326 s->verify_depth=ctx->verify_depth;
328 s->sid_ctx_length=ctx->sid_ctx_length;
329 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
330 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
331 s->verify_callback=ctx->default_verify_callback;
332 s->generate_session_id=ctx->generate_session_id;
334 s->param = X509_VERIFY_PARAM_new();
337 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
339 s->purpose = ctx->purpose;
340 s->trust = ctx->trust;
342 s->quiet_shutdown=ctx->quiet_shutdown;
343 s->max_send_fragment = ctx->max_send_fragment;
345 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
347 #ifndef OPENSSL_NO_TLSEXT
348 s->tlsext_debug_cb = 0;
349 s->tlsext_debug_arg = NULL;
350 s->tlsext_ticket_expected = 0;
351 s->tlsext_status_type = -1;
352 s->tlsext_status_expected = 0;
353 s->tlsext_ocsp_ids = NULL;
354 s->tlsext_ocsp_exts = NULL;
355 s->tlsext_ocsp_resp = NULL;
356 s->tlsext_ocsp_resplen = -1;
357 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
359 #ifndef OPENSSL_NO_EC
360 if (ctx->tlsext_ecpointformatlist)
362 s->tlsext_ecpointformatlist =
363 BUF_memdup(ctx->tlsext_ecpointformatlist,
364 ctx->tlsext_ecpointformatlist_length);
365 if (!s->tlsext_ecpointformatlist)
367 s->tlsext_ecpointformatlist_length =
368 ctx->tlsext_ecpointformatlist_length;
370 if (ctx->tlsext_ellipticcurvelist)
372 s->tlsext_ellipticcurvelist =
373 BUF_memdup(ctx->tlsext_ellipticcurvelist,
374 ctx->tlsext_ellipticcurvelist_length);
375 if (!s->tlsext_ellipticcurvelist)
377 s->tlsext_ellipticcurvelist_length =
378 ctx->tlsext_ellipticcurvelist_length;
381 # ifndef OPENSSL_NO_NEXTPROTONEG
382 s->next_proto_negotiated = NULL;
385 if (s->ctx->alpn_client_proto_list)
387 s->alpn_client_proto_list =
388 OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
389 if (s->alpn_client_proto_list == NULL)
391 memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
392 s->ctx->alpn_client_proto_list_len);
393 s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
397 s->verify_result=X509_V_OK;
399 s->method=ctx->method;
401 if (!s->method->ssl_new(s))
405 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
409 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
411 #ifndef OPENSSL_NO_PSK
412 s->psk_client_callback=ctx->psk_client_callback;
413 s->psk_server_callback=ctx->psk_server_callback;
421 ssl_cert_free(s->cert);
423 SSL_CTX_free(s->ctx); /* decrement reference count */
426 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
430 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
431 unsigned int sid_ctx_len)
433 if(sid_ctx_len > sizeof ctx->sid_ctx)
435 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
438 ctx->sid_ctx_length=sid_ctx_len;
439 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
444 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
445 unsigned int sid_ctx_len)
447 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
449 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
452 ssl->sid_ctx_length=sid_ctx_len;
453 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
458 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
460 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
461 ctx->generate_session_id = cb;
462 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
466 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
468 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
469 ssl->generate_session_id = cb;
470 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
474 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
477 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
478 * we can "construct" a session to give us the desired check - ie. to
479 * find if there's a session in the hash table that would conflict with
480 * any new session built out of this id/id_len and the ssl_version in
481 * use by this SSL. */
484 if(id_len > sizeof r.session_id)
487 r.ssl_version = ssl->version;
488 r.session_id_length = id_len;
489 memcpy(r.session_id, id, id_len);
490 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
491 * callback is calling us to check the uniqueness of a shorter ID, it
492 * must be compared as a padded-out ID because that is what it will be
493 * converted to when the callback has finished choosing it. */
494 if((r.ssl_version == SSL2_VERSION) &&
495 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
497 memset(r.session_id + id_len, 0,
498 SSL2_SSL_SESSION_ID_LENGTH - id_len);
499 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
502 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
503 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
504 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
508 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
510 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
513 int SSL_set_purpose(SSL *s, int purpose)
515 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
518 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
520 return X509_VERIFY_PARAM_set_trust(s->param, trust);
523 int SSL_set_trust(SSL *s, int trust)
525 return X509_VERIFY_PARAM_set_trust(s->param, trust);
528 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
530 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
533 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
535 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
538 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
543 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
548 void SSL_certs_clear(SSL *s)
550 ssl_cert_clear_certs(s->cert);
553 void SSL_free(SSL *s)
560 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
568 fprintf(stderr,"SSL_free, bad reference count\n");
574 X509_VERIFY_PARAM_free(s->param);
576 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
580 /* If the buffering BIO is in place, pop it off */
581 if (s->bbio == s->wbio)
583 s->wbio=BIO_pop(s->wbio);
589 BIO_free_all(s->rbio);
590 if ((s->wbio != NULL) && (s->wbio != s->rbio))
591 BIO_free_all(s->wbio);
593 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
595 /* add extra stuff */
596 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
597 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
599 /* Make the next call work :-) */
600 if (s->session != NULL)
602 ssl_clear_bad_session(s);
603 SSL_SESSION_free(s->session);
606 ssl_clear_cipher_ctx(s);
607 ssl_clear_hash_ctx(&s->read_hash);
608 ssl_clear_hash_ctx(&s->write_hash);
610 if (s->cert != NULL) ssl_cert_free(s->cert);
611 /* Free up if allocated */
613 #ifndef OPENSSL_NO_TLSEXT
614 if (s->tlsext_hostname)
615 OPENSSL_free(s->tlsext_hostname);
616 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx);
617 #ifndef OPENSSL_NO_EC
618 if (s->tlsext_ecpointformatlist) OPENSSL_free(s->tlsext_ecpointformatlist);
619 if (s->tlsext_ellipticcurvelist) OPENSSL_free(s->tlsext_ellipticcurvelist);
620 #endif /* OPENSSL_NO_EC */
621 if (s->tlsext_opaque_prf_input) OPENSSL_free(s->tlsext_opaque_prf_input);
622 if (s->tlsext_ocsp_exts)
623 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
624 X509_EXTENSION_free);
625 if (s->tlsext_ocsp_ids)
626 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
627 if (s->tlsext_ocsp_resp)
628 OPENSSL_free(s->tlsext_ocsp_resp);
629 if (s->alpn_client_proto_list)
630 OPENSSL_free(s->alpn_client_proto_list);
633 if (s->client_CA != NULL)
634 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
636 if (s->method != NULL) s->method->ssl_free(s);
638 if (s->ctx) SSL_CTX_free(s->ctx);
640 #ifndef OPENSSL_NO_KRB5
641 if (s->kssl_ctx != NULL)
642 kssl_ctx_free(s->kssl_ctx);
643 #endif /* OPENSSL_NO_KRB5 */
645 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
646 if (s->next_proto_negotiated)
647 OPENSSL_free(s->next_proto_negotiated);
650 if (s->srtp_profiles)
651 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
656 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
658 /* If the output buffering BIO is still in place, remove it
662 if (s->wbio == s->bbio)
664 s->wbio=s->wbio->next_bio;
665 s->bbio->next_bio=NULL;
668 if ((s->rbio != NULL) && (s->rbio != rbio))
669 BIO_free_all(s->rbio);
670 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
671 BIO_free_all(s->wbio);
676 BIO *SSL_get_rbio(const SSL *s)
679 BIO *SSL_get_wbio(const SSL *s)
682 int SSL_get_fd(const SSL *s)
684 return(SSL_get_rfd(s));
687 int SSL_get_rfd(const SSL *s)
693 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
699 int SSL_get_wfd(const SSL *s)
705 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
711 #ifndef OPENSSL_NO_SOCK
712 int SSL_set_fd(SSL *s,int fd)
717 bio=BIO_new(BIO_s_socket());
721 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
724 BIO_set_fd(bio,fd,BIO_NOCLOSE);
725 SSL_set_bio(s,bio,bio);
731 int SSL_set_wfd(SSL *s,int fd)
736 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
737 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
739 bio=BIO_new(BIO_s_socket());
742 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
743 BIO_set_fd(bio,fd,BIO_NOCLOSE);
744 SSL_set_bio(s,SSL_get_rbio(s),bio);
747 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
753 int SSL_set_rfd(SSL *s,int fd)
758 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
759 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
761 bio=BIO_new(BIO_s_socket());
765 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
768 BIO_set_fd(bio,fd,BIO_NOCLOSE);
769 SSL_set_bio(s,bio,SSL_get_wbio(s));
772 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
780 /* return length of latest Finished message we sent, copy to 'buf' */
781 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
787 ret = s->s3->tmp.finish_md_len;
790 memcpy(buf, s->s3->tmp.finish_md, count);
795 /* return length of latest Finished message we expected, copy to 'buf' */
796 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
802 ret = s->s3->tmp.peer_finish_md_len;
805 memcpy(buf, s->s3->tmp.peer_finish_md, count);
811 int SSL_get_verify_mode(const SSL *s)
813 return(s->verify_mode);
816 int SSL_get_verify_depth(const SSL *s)
818 return X509_VERIFY_PARAM_get_depth(s->param);
821 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
823 return(s->verify_callback);
826 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
828 return(ctx->verify_mode);
831 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
833 return X509_VERIFY_PARAM_get_depth(ctx->param);
836 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
838 return(ctx->default_verify_callback);
841 void SSL_set_verify(SSL *s,int mode,
842 int (*callback)(int ok,X509_STORE_CTX *ctx))
845 if (callback != NULL)
846 s->verify_callback=callback;
849 void SSL_set_verify_depth(SSL *s,int depth)
851 X509_VERIFY_PARAM_set_depth(s->param, depth);
854 void SSL_set_read_ahead(SSL *s,int yes)
859 int SSL_get_read_ahead(const SSL *s)
861 return(s->read_ahead);
864 int SSL_pending(const SSL *s)
866 /* SSL_pending cannot work properly if read-ahead is enabled
867 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
868 * and it is impossible to fix since SSL_pending cannot report
869 * errors that may be observed while scanning the new data.
870 * (Note that SSL_pending() is often used as a boolean value,
871 * so we'd better not return -1.)
873 return(s->method->ssl_pending(s));
876 X509 *SSL_get_peer_certificate(const SSL *s)
880 if ((s == NULL) || (s->session == NULL))
885 if (r == NULL) return(r);
887 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
892 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
896 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
899 r=s->session->sess_cert->cert_chain;
901 /* If we are a client, cert_chain includes the peer's own
902 * certificate; if we are a server, it does not. */
907 /* Now in theory, since the calling process own 't' it should be safe to
908 * modify. We need to be able to read f without being hassled */
909 void SSL_copy_session_id(SSL *t,const SSL *f)
913 /* Do we need to to SSL locking? */
914 SSL_set_session(t,SSL_get_session(f));
916 /* what if we are setup as SSLv2 but want to talk SSLv3 or
918 if (t->method != f->method)
920 t->method->ssl_free(t); /* cleanup current */
921 t->method=f->method; /* change method */
922 t->method->ssl_new(t); /* setup new */
928 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
933 if (tmp != NULL) ssl_cert_free(tmp);
934 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
937 /* Fix this so it checks all the valid key/cert options */
938 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
940 if ( (ctx == NULL) ||
941 (ctx->cert == NULL) ||
942 (ctx->cert->key->x509 == NULL))
944 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
947 if (ctx->cert->key->privatekey == NULL)
949 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
952 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
955 /* Fix this function so that it takes an optional type parameter */
956 int SSL_check_private_key(const SSL *ssl)
960 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
963 if (ssl->cert == NULL)
965 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
968 if (ssl->cert->key->x509 == NULL)
970 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
973 if (ssl->cert->key->privatekey == NULL)
975 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
978 return(X509_check_private_key(ssl->cert->key->x509,
979 ssl->cert->key->privatekey));
982 int SSL_accept(SSL *s)
984 if (s->handshake_func == 0)
985 /* Not properly initialized yet */
986 SSL_set_accept_state(s);
988 return(s->method->ssl_accept(s));
991 int SSL_connect(SSL *s)
993 if (s->handshake_func == 0)
994 /* Not properly initialized yet */
995 SSL_set_connect_state(s);
997 return(s->method->ssl_connect(s));
1000 long SSL_get_default_timeout(const SSL *s)
1002 return(s->method->get_timeout());
1005 int SSL_read(SSL *s,void *buf,int num)
1007 if (s->handshake_func == 0)
1009 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
1013 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
1015 s->rwstate=SSL_NOTHING;
1018 return(s->method->ssl_read(s,buf,num));
1021 int SSL_peek(SSL *s,void *buf,int num)
1023 if (s->handshake_func == 0)
1025 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
1029 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
1033 return(s->method->ssl_peek(s,buf,num));
1036 int SSL_write(SSL *s,const void *buf,int num)
1038 if (s->handshake_func == 0)
1040 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
1044 if (s->shutdown & SSL_SENT_SHUTDOWN)
1046 s->rwstate=SSL_NOTHING;
1047 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
1050 return(s->method->ssl_write(s,buf,num));
1053 int SSL_shutdown(SSL *s)
1055 /* Note that this function behaves differently from what one might
1056 * expect. Return values are 0 for no success (yet),
1057 * 1 for success; but calling it once is usually not enough,
1058 * even if blocking I/O is used (see ssl3_shutdown).
1061 if (s->handshake_func == 0)
1063 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1067 if ((s != NULL) && !SSL_in_init(s))
1068 return(s->method->ssl_shutdown(s));
1073 int SSL_renegotiate(SSL *s)
1075 if (s->renegotiate == 0)
1080 return(s->method->ssl_renegotiate(s));
1083 int SSL_renegotiate_abbreviated(SSL *s)
1085 if (s->renegotiate == 0)
1090 return(s->method->ssl_renegotiate(s));
1093 int SSL_renegotiate_pending(SSL *s)
1095 /* becomes true when negotiation is requested;
1096 * false again once a handshake has finished */
1097 return (s->renegotiate != 0);
1100 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
1106 case SSL_CTRL_GET_READ_AHEAD:
1107 return(s->read_ahead);
1108 case SSL_CTRL_SET_READ_AHEAD:
1113 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1114 s->msg_callback_arg = parg;
1117 case SSL_CTRL_OPTIONS:
1118 return(s->options|=larg);
1119 case SSL_CTRL_CLEAR_OPTIONS:
1120 return(s->options&=~larg);
1122 return(s->mode|=larg);
1123 case SSL_CTRL_CLEAR_MODE:
1124 return(s->mode &=~larg);
1125 case SSL_CTRL_GET_MAX_CERT_LIST:
1126 return(s->max_cert_list);
1127 case SSL_CTRL_SET_MAX_CERT_LIST:
1129 s->max_cert_list=larg;
1131 case SSL_CTRL_SET_MTU:
1132 #ifndef OPENSSL_NO_DTLS1
1133 if (larg < (long)dtls1_min_mtu())
1143 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1144 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1146 s->max_send_fragment = larg;
1148 case SSL_CTRL_GET_RI_SUPPORT:
1150 return s->s3->send_connection_binding;
1152 case SSL_CTRL_CERT_FLAGS:
1153 return(s->cert->cert_flags|=larg);
1154 case SSL_CTRL_CLEAR_CERT_FLAGS:
1155 return(s->cert->cert_flags &=~larg);
1157 case SSL_CTRL_GET_RAW_CIPHERLIST:
1160 if (s->cert->ciphers_raw == NULL)
1162 *(unsigned char **)parg = s->cert->ciphers_raw;
1163 return (int)s->cert->ciphers_rawlen;
1166 return ssl_put_cipher_by_char(s,NULL,NULL);
1168 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1172 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1176 case SSL_CTRL_SET_MSG_CALLBACK:
1177 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1181 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1185 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1187 return ctx->sessions;
1190 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1193 /* For some cases with ctx == NULL perform syntax checks */
1198 #ifndef OPENSSL_NO_EC
1199 case SSL_CTRL_SET_CURVES_LIST:
1200 return tls1_set_curves_list(NULL, NULL, parg);
1202 case SSL_CTRL_SET_SIGALGS_LIST:
1203 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1204 return tls1_set_sigalgs_list(NULL, parg, 0);
1212 case SSL_CTRL_GET_READ_AHEAD:
1213 return(ctx->read_ahead);
1214 case SSL_CTRL_SET_READ_AHEAD:
1216 ctx->read_ahead=larg;
1219 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1220 ctx->msg_callback_arg = parg;
1223 case SSL_CTRL_GET_MAX_CERT_LIST:
1224 return(ctx->max_cert_list);
1225 case SSL_CTRL_SET_MAX_CERT_LIST:
1226 l=ctx->max_cert_list;
1227 ctx->max_cert_list=larg;
1230 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1231 l=ctx->session_cache_size;
1232 ctx->session_cache_size=larg;
1234 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1235 return(ctx->session_cache_size);
1236 case SSL_CTRL_SET_SESS_CACHE_MODE:
1237 l=ctx->session_cache_mode;
1238 ctx->session_cache_mode=larg;
1240 case SSL_CTRL_GET_SESS_CACHE_MODE:
1241 return(ctx->session_cache_mode);
1243 case SSL_CTRL_SESS_NUMBER:
1244 return(lh_SSL_SESSION_num_items(ctx->sessions));
1245 case SSL_CTRL_SESS_CONNECT:
1246 return(ctx->stats.sess_connect);
1247 case SSL_CTRL_SESS_CONNECT_GOOD:
1248 return(ctx->stats.sess_connect_good);
1249 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1250 return(ctx->stats.sess_connect_renegotiate);
1251 case SSL_CTRL_SESS_ACCEPT:
1252 return(ctx->stats.sess_accept);
1253 case SSL_CTRL_SESS_ACCEPT_GOOD:
1254 return(ctx->stats.sess_accept_good);
1255 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1256 return(ctx->stats.sess_accept_renegotiate);
1257 case SSL_CTRL_SESS_HIT:
1258 return(ctx->stats.sess_hit);
1259 case SSL_CTRL_SESS_CB_HIT:
1260 return(ctx->stats.sess_cb_hit);
1261 case SSL_CTRL_SESS_MISSES:
1262 return(ctx->stats.sess_miss);
1263 case SSL_CTRL_SESS_TIMEOUTS:
1264 return(ctx->stats.sess_timeout);
1265 case SSL_CTRL_SESS_CACHE_FULL:
1266 return(ctx->stats.sess_cache_full);
1267 case SSL_CTRL_OPTIONS:
1268 return(ctx->options|=larg);
1269 case SSL_CTRL_CLEAR_OPTIONS:
1270 return(ctx->options&=~larg);
1272 return(ctx->mode|=larg);
1273 case SSL_CTRL_CLEAR_MODE:
1274 return(ctx->mode&=~larg);
1275 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1276 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1278 ctx->max_send_fragment = larg;
1280 case SSL_CTRL_CERT_FLAGS:
1281 return(ctx->cert->cert_flags|=larg);
1282 case SSL_CTRL_CLEAR_CERT_FLAGS:
1283 return(ctx->cert->cert_flags &=~larg);
1285 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1289 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1293 case SSL_CTRL_SET_MSG_CALLBACK:
1294 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1298 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1302 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1310 return((l > 0)?1:-1);
1313 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1314 const SSL_CIPHER * const *bp)
1318 l=(*ap)->id-(*bp)->id;
1322 return((l > 0)?1:-1);
1325 /** return a STACK of the ciphers available for the SSL and in order of
1327 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1331 if (s->cipher_list != NULL)
1333 return(s->cipher_list);
1335 else if ((s->ctx != NULL) &&
1336 (s->ctx->cipher_list != NULL))
1338 return(s->ctx->cipher_list);
1344 /** return a STACK of the ciphers available for the SSL and in order of
1346 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1350 if (s->cipher_list_by_id != NULL)
1352 return(s->cipher_list_by_id);
1354 else if ((s->ctx != NULL) &&
1355 (s->ctx->cipher_list_by_id != NULL))
1357 return(s->ctx->cipher_list_by_id);
1363 /** The old interface to get the same thing as SSL_get_ciphers() */
1364 const char *SSL_get_cipher_list(const SSL *s,int n)
1367 STACK_OF(SSL_CIPHER) *sk;
1369 if (s == NULL) return(NULL);
1370 sk=SSL_get_ciphers(s);
1371 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1373 c=sk_SSL_CIPHER_value(sk,n);
1374 if (c == NULL) return(NULL);
1378 /** specify the ciphers to be used by default by the SSL_CTX */
1379 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1381 STACK_OF(SSL_CIPHER) *sk;
1383 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1384 &ctx->cipher_list_by_id,str, ctx->cert);
1385 /* ssl_create_cipher_list may return an empty stack if it
1386 * was unable to find a cipher matching the given rule string
1387 * (for example if the rule string specifies a cipher which
1388 * has been disabled). This is not an error as far as
1389 * ssl_create_cipher_list is concerned, and hence
1390 * ctx->cipher_list and ctx->cipher_list_by_id has been
1394 else if (sk_SSL_CIPHER_num(sk) == 0)
1396 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1402 /** specify the ciphers to be used by the SSL */
1403 int SSL_set_cipher_list(SSL *s,const char *str)
1405 STACK_OF(SSL_CIPHER) *sk;
1407 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1408 &s->cipher_list_by_id,str, s->cert);
1409 /* see comment in SSL_CTX_set_cipher_list */
1412 else if (sk_SSL_CIPHER_num(sk) == 0)
1414 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1420 /* works well for SSLv2, not so good for SSLv3 */
1421 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1424 STACK_OF(SSL_CIPHER) *sk;
1428 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1433 sk=s->session->ciphers;
1435 if (sk_SSL_CIPHER_num(sk) == 0)
1438 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1442 c=sk_SSL_CIPHER_value(sk,i);
1460 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1461 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1467 int empty_reneg_info_scsv = !s->renegotiate;
1468 /* Set disabled masks for this session */
1469 ssl_set_client_disabled(s);
1471 if (sk == NULL) return(0);
1474 put_cb = s->method->put_cipher_by_char;
1476 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1478 c=sk_SSL_CIPHER_value(sk,i);
1479 /* Skip disabled ciphers */
1480 if (c->algorithm_ssl & ct->mask_ssl ||
1481 c->algorithm_mkey & ct->mask_k ||
1482 c->algorithm_auth & ct->mask_a)
1484 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1485 if (c->id == SSL3_CK_SCSV)
1487 if (!empty_reneg_info_scsv)
1490 empty_reneg_info_scsv = 0;
1496 /* If p == q, no ciphers; caller indicates an error.
1497 * Otherwise, add applicable SCSVs. */
1500 if (empty_reneg_info_scsv)
1502 static SSL_CIPHER scsv =
1504 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1506 j = put_cb(&scsv,p);
1508 #ifdef OPENSSL_RI_DEBUG
1509 fprintf(stderr, "TLS_EMPTY_RENEGOTIATION_INFO_SCSV sent by client\n");
1512 if (s->mode & SSL_MODE_SEND_FALLBACK_SCSV)
1514 static SSL_CIPHER scsv =
1516 0, NULL, SSL3_CK_FALLBACK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1518 j = put_cb(&scsv,p);
1526 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1527 STACK_OF(SSL_CIPHER) **skp)
1529 const SSL_CIPHER *c;
1530 STACK_OF(SSL_CIPHER) *sk;
1534 s->s3->send_connection_binding = 0;
1536 n=ssl_put_cipher_by_char(s,NULL,NULL);
1537 if (n == 0 || (num%n) != 0)
1539 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1542 if ((skp == NULL) || (*skp == NULL))
1543 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1547 sk_SSL_CIPHER_zero(sk);
1550 if (s->cert->ciphers_raw)
1551 OPENSSL_free(s->cert->ciphers_raw);
1552 s->cert->ciphers_raw = BUF_memdup(p, num);
1553 if (s->cert->ciphers_raw == NULL)
1555 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1558 s->cert->ciphers_rawlen = (size_t)num;
1560 for (i=0; i<num; i+=n)
1562 /* Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV */
1563 if (s->s3 && (n != 3 || !p[0]) &&
1564 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1565 (p[n-1] == (SSL3_CK_SCSV & 0xff)))
1567 /* SCSV fatal if renegotiating */
1570 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1571 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1574 s->s3->send_connection_binding = 1;
1576 #ifdef OPENSSL_RI_DEBUG
1577 fprintf(stderr, "SCSV received by server\n");
1582 /* Check for TLS_FALLBACK_SCSV */
1583 if ((n != 3 || !p[0]) &&
1584 (p[n-2] == ((SSL3_CK_FALLBACK_SCSV >> 8) & 0xff)) &&
1585 (p[n-1] == (SSL3_CK_FALLBACK_SCSV & 0xff)))
1587 /* The SCSV indicates that the client previously tried a higher version.
1588 * Fail if the current version is an unexpected downgrade. */
1589 if (!SSL_ctrl(s, SSL_CTRL_CHECK_PROTO_VERSION, 0, NULL))
1591 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_INAPPROPRIATE_FALLBACK);
1593 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_INAPPROPRIATE_FALLBACK);
1600 c=ssl_get_cipher_by_char(s,p);
1604 if (!sk_SSL_CIPHER_push(sk,c))
1606 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1616 if ((skp == NULL) || (*skp == NULL))
1617 sk_SSL_CIPHER_free(sk);
1622 #ifndef OPENSSL_NO_TLSEXT
1623 /** return a servername extension value if provided in Client Hello, or NULL.
1624 * So far, only host_name types are defined (RFC 3546).
1627 const char *SSL_get_servername(const SSL *s, const int type)
1629 if (type != TLSEXT_NAMETYPE_host_name)
1632 return s->session && !s->tlsext_hostname ?
1633 s->session->tlsext_hostname :
1637 int SSL_get_servername_type(const SSL *s)
1639 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1640 return TLSEXT_NAMETYPE_host_name;
1644 /* SSL_select_next_proto implements the standard protocol selection. It is
1645 * expected that this function is called from the callback set by
1646 * SSL_CTX_set_next_proto_select_cb.
1648 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
1649 * strings. The length byte itself is not included in the length. A byte
1650 * string of length 0 is invalid. No byte string may be truncated.
1652 * The current, but experimental algorithm for selecting the protocol is:
1654 * 1) If the server doesn't support NPN then this is indicated to the
1655 * callback. In this case, the client application has to abort the connection
1656 * or have a default application level protocol.
1658 * 2) If the server supports NPN, but advertises an empty list then the
1659 * client selects the first protcol in its list, but indicates via the
1660 * API that this fallback case was enacted.
1662 * 3) Otherwise, the client finds the first protocol in the server's list
1663 * that it supports and selects this protocol. This is because it's
1664 * assumed that the server has better information about which protocol
1665 * a client should use.
1667 * 4) If the client doesn't support any of the server's advertised
1668 * protocols, then this is treated the same as case 2.
1671 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or
1672 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1674 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)
1677 const unsigned char *result;
1678 int status = OPENSSL_NPN_UNSUPPORTED;
1680 /* For each protocol in server preference order, see if we support it. */
1681 for (i = 0; i < server_len; )
1683 for (j = 0; j < client_len; )
1685 if (server[i] == client[j] &&
1686 memcmp(&server[i+1], &client[j+1], server[i]) == 0)
1688 /* We found a match */
1689 result = &server[i];
1690 status = OPENSSL_NPN_NEGOTIATED;
1700 /* There's no overlap between our protocols and the server's list. */
1702 status = OPENSSL_NPN_NO_OVERLAP;
1705 *out = (unsigned char *) result + 1;
1706 *outlen = result[0];
1710 # ifndef OPENSSL_NO_NEXTPROTONEG
1711 /* SSL_get0_next_proto_negotiated sets *data and *len to point to the client's
1712 * requested protocol for this connection and returns 0. If the client didn't
1713 * request any protocol, then *data is set to NULL.
1715 * Note that the client can request any protocol it chooses. The value returned
1716 * from this function need not be a member of the list of supported protocols
1717 * provided by the callback.
1719 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, unsigned *len)
1721 *data = s->next_proto_negotiated;
1725 *len = s->next_proto_negotiated_len;
1729 /* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a
1730 * TLS server needs a list of supported protocols for Next Protocol
1731 * Negotiation. The returned list must be in wire format. The list is returned
1732 * by setting |out| to point to it and |outlen| to its length. This memory will
1733 * not be modified, but one should assume that the SSL* keeps a reference to
1736 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. Otherwise, no
1737 * such extension will be included in the ServerHello. */
1738 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)
1740 ctx->next_protos_advertised_cb = cb;
1741 ctx->next_protos_advertised_cb_arg = arg;
1744 /* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1745 * client needs to select a protocol from the server's provided list. |out|
1746 * must be set to point to the selected protocol (which may be within |in|).
1747 * The length of the protocol name must be written into |outlen|. The server's
1748 * advertised protocols are provided in |in| and |inlen|. The callback can
1749 * assume that |in| is syntactically valid.
1751 * The client must select a protocol. It is fatal to the connection if this
1752 * callback returns a value other than SSL_TLSEXT_ERR_OK.
1754 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)
1756 ctx->next_proto_select_cb = cb;
1757 ctx->next_proto_select_cb_arg = arg;
1761 /* SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1762 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1763 * length-prefixed strings).
1765 * Returns 0 on success. */
1766 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char* protos,
1767 unsigned protos_len)
1769 if (ctx->alpn_client_proto_list)
1770 OPENSSL_free(ctx->alpn_client_proto_list);
1772 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1773 if (!ctx->alpn_client_proto_list)
1775 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
1776 ctx->alpn_client_proto_list_len = protos_len;
1781 /* SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1782 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1783 * length-prefixed strings).
1785 * Returns 0 on success. */
1786 int SSL_set_alpn_protos(SSL *ssl, const unsigned char* protos,
1787 unsigned protos_len)
1789 if (ssl->alpn_client_proto_list)
1790 OPENSSL_free(ssl->alpn_client_proto_list);
1792 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1793 if (!ssl->alpn_client_proto_list)
1795 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
1796 ssl->alpn_client_proto_list_len = protos_len;
1801 /* SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is called
1802 * during ClientHello processing in order to select an ALPN protocol from the
1803 * client's list of offered protocols. */
1804 void SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx,
1805 int (*cb) (SSL *ssl,
1806 const unsigned char **out,
1807 unsigned char *outlen,
1808 const unsigned char *in,
1813 ctx->alpn_select_cb = cb;
1814 ctx->alpn_select_cb_arg = arg;
1817 /* SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
1818 * On return it sets |*data| to point to |*len| bytes of protocol name (not
1819 * including the leading length-prefix byte). If the server didn't respond with
1820 * a negotiated protocol then |*len| will be zero. */
1821 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1826 *data = ssl->s3->alpn_selected;
1830 *len = ssl->s3->alpn_selected_len;
1833 #endif /* !OPENSSL_NO_TLSEXT */
1835 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1836 const char *label, size_t llen, const unsigned char *p, size_t plen,
1839 if (s->version < TLS1_VERSION)
1842 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1847 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1852 ((unsigned int) a->session_id[0] )|
1853 ((unsigned int) a->session_id[1]<< 8L)|
1854 ((unsigned long)a->session_id[2]<<16L)|
1855 ((unsigned long)a->session_id[3]<<24L);
1859 /* NB: If this function (or indeed the hash function which uses a sort of
1860 * coarser function than this one) is changed, ensure
1861 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1862 * able to construct an SSL_SESSION that will collide with any existing session
1863 * with a matching session ID. */
1864 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1866 if (a->ssl_version != b->ssl_version)
1868 if (a->session_id_length != b->session_id_length)
1870 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1873 /* These wrapper functions should remain rather than redeclaring
1874 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1875 * variable. The reason is that the functions aren't static, they're exposed via
1877 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1878 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1880 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1886 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1891 if (FIPS_mode() && (meth->version < TLS1_VERSION))
1893 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1898 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1900 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1903 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1907 memset(ret,0,sizeof(SSL_CTX));
1911 ret->cert_store=NULL;
1912 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1913 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1914 ret->session_cache_head=NULL;
1915 ret->session_cache_tail=NULL;
1917 /* We take the system default */
1918 ret->session_timeout=meth->get_timeout();
1920 ret->new_session_cb=0;
1921 ret->remove_session_cb=0;
1922 ret->get_session_cb=0;
1923 ret->generate_session_id=0;
1925 memset((char *)&ret->stats,0,sizeof(ret->stats));
1928 ret->quiet_shutdown=0;
1930 /* ret->cipher=NULL;*/
1931 /* ret->s2->challenge=NULL;
1932 ret->master_key=NULL;
1934 ret->s2->conn_id=NULL; */
1936 ret->info_callback=NULL;
1938 ret->app_verify_callback=0;
1939 ret->app_verify_arg=NULL;
1941 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1943 ret->msg_callback=0;
1944 ret->msg_callback_arg=NULL;
1945 ret->verify_mode=SSL_VERIFY_NONE;
1947 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1949 ret->sid_ctx_length=0;
1950 ret->default_verify_callback=NULL;
1951 if ((ret->cert=ssl_cert_new()) == NULL)
1954 ret->default_passwd_callback=0;
1955 ret->default_passwd_callback_userdata=NULL;
1956 ret->client_cert_cb=0;
1957 ret->app_gen_cookie_cb=0;
1958 ret->app_verify_cookie_cb=0;
1960 ret->sessions=lh_SSL_SESSION_new();
1961 if (ret->sessions == NULL) goto err;
1962 ret->cert_store=X509_STORE_new();
1963 if (ret->cert_store == NULL) goto err;
1965 ssl_create_cipher_list(ret->method,
1966 &ret->cipher_list,&ret->cipher_list_by_id,
1967 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, ret->cert);
1968 if (ret->cipher_list == NULL
1969 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1971 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1975 ret->param = X509_VERIFY_PARAM_new();
1979 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1981 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1984 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1986 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1989 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1991 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1995 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1998 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
2000 ret->extra_certs=NULL;
2001 /* No compression for DTLS */
2002 if (meth->version != DTLS1_VERSION)
2003 ret->comp_methods=SSL_COMP_get_compression_methods();
2005 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
2007 #ifndef OPENSSL_NO_TLSEXT
2008 ret->tlsext_servername_callback = 0;
2009 ret->tlsext_servername_arg = NULL;
2010 /* Setup RFC4507 ticket keys */
2011 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
2012 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
2013 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
2014 ret->options |= SSL_OP_NO_TICKET;
2016 ret->tlsext_status_cb = 0;
2017 ret->tlsext_status_arg = NULL;
2019 # ifndef OPENSSL_NO_NEXTPROTONEG
2020 ret->next_protos_advertised_cb = 0;
2021 ret->next_proto_select_cb = 0;
2024 #ifndef OPENSSL_NO_PSK
2025 ret->psk_identity_hint=NULL;
2026 ret->psk_client_callback=NULL;
2027 ret->psk_server_callback=NULL;
2029 #ifndef OPENSSL_NO_SRP
2030 SSL_CTX_SRP_CTX_init(ret);
2032 #ifndef OPENSSL_NO_BUF_FREELISTS
2033 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
2034 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
2035 if (!ret->rbuf_freelist)
2037 ret->rbuf_freelist->chunklen = 0;
2038 ret->rbuf_freelist->len = 0;
2039 ret->rbuf_freelist->head = NULL;
2040 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
2041 if (!ret->wbuf_freelist)
2043 OPENSSL_free(ret->rbuf_freelist);
2046 ret->wbuf_freelist->chunklen = 0;
2047 ret->wbuf_freelist->len = 0;
2048 ret->wbuf_freelist->head = NULL;
2050 #ifndef OPENSSL_NO_ENGINE
2051 ret->client_cert_engine = NULL;
2052 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2053 #define eng_strx(x) #x
2054 #define eng_str(x) eng_strx(x)
2055 /* Use specific client engine automatically... ignore errors */
2058 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2062 ENGINE_load_builtin_engines();
2063 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2065 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
2070 /* Default is to connect to non-RI servers. When RI is more widely
2071 * deployed might change this.
2073 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
2077 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
2079 if (ret != NULL) SSL_CTX_free(ret);
2084 static void SSL_COMP_free(SSL_COMP *comp)
2085 { OPENSSL_free(comp); }
2088 #ifndef OPENSSL_NO_BUF_FREELISTS
2090 ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
2092 SSL3_BUF_FREELIST_ENTRY *ent, *next;
2093 for (ent = list->head; ent; ent = next)
2102 void SSL_CTX_free(SSL_CTX *a)
2106 if (a == NULL) return;
2108 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
2110 REF_PRINT("SSL_CTX",a);
2116 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
2122 X509_VERIFY_PARAM_free(a->param);
2125 * Free internal session cache. However: the remove_cb() may reference
2126 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2127 * after the sessions were flushed.
2128 * As the ex_data handling routines might also touch the session cache,
2129 * the most secure solution seems to be: empty (flush) the cache, then
2130 * free ex_data, then finally free the cache.
2131 * (See ticket [openssl.org #212].)
2133 if (a->sessions != NULL)
2134 SSL_CTX_flush_sessions(a,0);
2136 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
2138 if (a->sessions != NULL)
2139 lh_SSL_SESSION_free(a->sessions);
2141 if (a->cert_store != NULL)
2142 X509_STORE_free(a->cert_store);
2143 if (a->cipher_list != NULL)
2144 sk_SSL_CIPHER_free(a->cipher_list);
2145 if (a->cipher_list_by_id != NULL)
2146 sk_SSL_CIPHER_free(a->cipher_list_by_id);
2147 if (a->cert != NULL)
2148 ssl_cert_free(a->cert);
2149 if (a->client_CA != NULL)
2150 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
2151 if (a->extra_certs != NULL)
2152 sk_X509_pop_free(a->extra_certs,X509_free);
2153 #if 0 /* This should never be done, since it removes a global database */
2154 if (a->comp_methods != NULL)
2155 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
2157 a->comp_methods = NULL;
2160 if (a->srtp_profiles)
2161 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
2163 #ifndef OPENSSL_NO_PSK
2164 if (a->psk_identity_hint)
2165 OPENSSL_free(a->psk_identity_hint);
2167 #ifndef OPENSSL_NO_SRP
2168 SSL_CTX_SRP_CTX_free(a);
2170 #ifndef OPENSSL_NO_ENGINE
2171 if (a->client_cert_engine)
2172 ENGINE_finish(a->client_cert_engine);
2175 #ifndef OPENSSL_NO_BUF_FREELISTS
2176 if (a->wbuf_freelist)
2177 ssl_buf_freelist_free(a->wbuf_freelist);
2178 if (a->rbuf_freelist)
2179 ssl_buf_freelist_free(a->rbuf_freelist);
2181 #ifndef OPENSSL_NO_TLSEXT
2182 # ifndef OPENSSL_NO_EC
2183 if (a->tlsext_ecpointformatlist)
2184 OPENSSL_free(a->tlsext_ecpointformatlist);
2185 if (a->tlsext_ellipticcurvelist)
2186 OPENSSL_free(a->tlsext_ellipticcurvelist);
2187 # endif /* OPENSSL_NO_EC */
2188 if (a->alpn_client_proto_list != NULL)
2189 OPENSSL_free(a->alpn_client_proto_list);
2195 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2197 ctx->default_passwd_callback=cb;
2200 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
2202 ctx->default_passwd_callback_userdata=u;
2205 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
2207 ctx->app_verify_callback=cb;
2208 ctx->app_verify_arg=arg;
2211 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
2213 ctx->verify_mode=mode;
2214 ctx->default_verify_callback=cb;
2217 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
2219 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2222 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb)(SSL *ssl, void *arg), void *arg)
2224 ssl_cert_set_cert_cb(c->cert, cb, arg);
2227 void SSL_set_cert_cb(SSL *s, int (*cb)(SSL *ssl, void *arg), void *arg)
2229 ssl_cert_set_cert_cb(s->cert, cb, arg);
2232 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
2235 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
2236 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
2237 int rsa_tmp_export,dh_tmp_export,kl;
2238 unsigned long mask_k,mask_a,emask_k,emask_a;
2239 #ifndef OPENSSL_NO_ECDSA
2240 int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
2242 #ifndef OPENSSL_NO_ECDH
2243 int have_ecdh_tmp, ecdh_ok;
2245 #ifndef OPENSSL_NO_EC
2247 EVP_PKEY *ecc_pkey = NULL;
2248 int signature_nid = 0, pk_nid = 0, md_nid = 0;
2250 if (c == NULL) return;
2252 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
2254 #ifndef OPENSSL_NO_RSA
2255 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2256 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
2257 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
2259 rsa_tmp=rsa_tmp_export=0;
2261 #ifndef OPENSSL_NO_DH
2262 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
2263 dh_tmp_export=(c->dh_tmp_cb != NULL ||
2264 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
2266 dh_tmp=dh_tmp_export=0;
2269 #ifndef OPENSSL_NO_ECDH
2270 have_ecdh_tmp=(c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
2272 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
2273 rsa_enc= cpk->valid_flags & CERT_PKEY_VALID;
2274 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2275 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2276 rsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2277 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2278 dsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2279 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
2280 dh_rsa= cpk->valid_flags & CERT_PKEY_VALID;
2281 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2282 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
2283 /* FIX THIS EAY EAY EAY */
2284 dh_dsa= cpk->valid_flags & CERT_PKEY_VALID;
2285 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2286 cpk= &(c->pkeys[SSL_PKEY_ECC]);
2287 #ifndef OPENSSL_NO_EC
2288 have_ecc_cert= cpk->valid_flags & CERT_PKEY_VALID;
2298 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2299 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
2300 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
2303 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2304 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2305 mask_k |= SSL_kGOST;
2306 mask_a |= SSL_aGOST01;
2308 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2309 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2310 mask_k |= SSL_kGOST;
2311 mask_a |= SSL_aGOST94;
2314 if (rsa_enc || (rsa_tmp && rsa_sign))
2316 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2320 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2321 if ( (dh_tmp || dh_rsa || dh_dsa) &&
2322 (rsa_enc || rsa_sign || dsa_sign))
2324 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
2325 (rsa_enc || rsa_sign || dsa_sign))
2335 if (dh_rsa) mask_k|=SSL_kDHr;
2336 if (dh_rsa_export) emask_k|=SSL_kDHr;
2338 if (dh_dsa) mask_k|=SSL_kDHd;
2339 if (dh_dsa_export) emask_k|=SSL_kDHd;
2341 if (emask_k & (SSL_kDHr|SSL_kDHd))
2344 if (rsa_enc || rsa_sign)
2359 #ifndef OPENSSL_NO_KRB5
2366 /* An ECC certificate may be usable for ECDH and/or
2367 * ECDSA cipher suites depending on the key usage extension.
2369 #ifndef OPENSSL_NO_EC
2372 cpk = &c->pkeys[SSL_PKEY_ECC];
2374 /* This call populates extension flags (ex_flags) */
2375 X509_check_purpose(x, -1, 0);
2376 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2377 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2378 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2379 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2380 if (!(cpk->valid_flags & CERT_PKEY_SIGN))
2382 ecc_pkey = X509_get_pubkey(x);
2383 ecc_pkey_size = (ecc_pkey != NULL) ?
2384 EVP_PKEY_bits(ecc_pkey) : 0;
2385 EVP_PKEY_free(ecc_pkey);
2386 if ((x->sig_alg) && (x->sig_alg->algorithm))
2388 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2389 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2391 #ifndef OPENSSL_NO_ECDH
2395 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa)
2399 if (ecc_pkey_size <= 163)
2401 emask_k|=SSL_kECDHr;
2406 if (pk_nid == NID_X9_62_id_ecPublicKey)
2410 if (ecc_pkey_size <= 163)
2412 emask_k|=SSL_kECDHe;
2418 #ifndef OPENSSL_NO_ECDSA
2422 emask_a|=SSL_aECDSA;
2428 #ifndef OPENSSL_NO_ECDH
2432 emask_k|=SSL_kEECDH;
2436 #ifndef OPENSSL_NO_PSK
2439 emask_k |= SSL_kPSK;
2440 emask_a |= SSL_aPSK;
2445 c->export_mask_k=emask_k;
2446 c->export_mask_a=emask_a;
2450 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2451 #define ku_reject(x, usage) \
2452 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2454 #ifndef OPENSSL_NO_EC
2456 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2458 unsigned long alg_k, alg_a;
2459 EVP_PKEY *pkey = NULL;
2461 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2462 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2464 alg_k = cs->algorithm_mkey;
2465 alg_a = cs->algorithm_auth;
2467 if (SSL_C_IS_EXPORT(cs))
2469 /* ECDH key length in export ciphers must be <= 163 bits */
2470 pkey = X509_get_pubkey(x);
2471 if (pkey == NULL) return 0;
2472 keysize = EVP_PKEY_bits(pkey);
2473 EVP_PKEY_free(pkey);
2474 if (keysize > 163) return 0;
2477 /* This call populates the ex_flags field correctly */
2478 X509_check_purpose(x, -1, 0);
2479 if ((x->sig_alg) && (x->sig_alg->algorithm))
2481 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2482 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2484 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
2486 /* key usage, if present, must allow key agreement */
2487 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
2489 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2492 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION)
2494 /* signature alg must be ECDSA */
2495 if (pk_nid != NID_X9_62_id_ecPublicKey)
2497 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2501 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION)
2503 /* signature alg must be RSA */
2505 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa)
2507 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2512 if (alg_a & SSL_aECDSA)
2514 /* key usage, if present, must allow signing */
2515 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
2517 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2522 return 1; /* all checks are ok */
2527 static int ssl_get_server_cert_index(const SSL *s)
2530 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2531 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2532 idx = SSL_PKEY_RSA_SIGN;
2534 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX,ERR_R_INTERNAL_ERROR);
2538 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s)
2544 if (!s->s3 || !s->s3->tmp.new_cipher)
2546 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2548 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2549 /* Broken protocol test: return last used certificate: which may
2550 * mismatch the one expected.
2552 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2556 i = ssl_get_server_cert_index(s);
2558 /* This may or may not be an error. */
2563 return &c->pkeys[i];
2566 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher, const EVP_MD **pmd)
2568 unsigned long alg_a;
2572 alg_a = cipher->algorithm_auth;
2575 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2576 /* Broken protocol test: use last key: which may
2577 * mismatch the one expected.
2579 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2580 idx = c->key - c->pkeys;
2584 if ((alg_a & SSL_aDSS) &&
2585 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2586 idx = SSL_PKEY_DSA_SIGN;
2587 else if (alg_a & SSL_aRSA)
2589 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2590 idx = SSL_PKEY_RSA_SIGN;
2591 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2592 idx = SSL_PKEY_RSA_ENC;
2594 else if ((alg_a & SSL_aECDSA) &&
2595 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2599 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2603 *pmd = c->pkeys[idx].digest;
2604 return c->pkeys[idx].privatekey;
2607 #ifndef OPENSSL_NO_TLSEXT
2608 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2609 size_t *serverinfo_length)
2613 *serverinfo_length = 0;
2616 i = ssl_get_server_cert_index(s);
2620 if (c->pkeys[i].serverinfo == NULL)
2623 *serverinfo = c->pkeys[i].serverinfo;
2624 *serverinfo_length = c->pkeys[i].serverinfo_length;
2629 void ssl_update_cache(SSL *s,int mode)
2633 /* If the session_id_length is 0, we are not supposed to cache it,
2634 * and it would be rather hard to do anyway :-) */
2635 if (s->session->session_id_length == 0) return;
2637 i=s->session_ctx->session_cache_mode;
2638 if ((i & mode) && (!s->hit)
2639 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2640 || SSL_CTX_add_session(s->session_ctx,s->session))
2641 && (s->session_ctx->new_session_cb != NULL))
2643 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2644 if (!s->session_ctx->new_session_cb(s,s->session))
2645 SSL_SESSION_free(s->session);
2648 /* auto flush every 255 connections */
2649 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2650 ((i & mode) == mode))
2652 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2653 ?s->session_ctx->stats.sess_connect_good
2654 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2656 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2661 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2666 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2671 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2676 if (s->method != meth)
2678 if (s->handshake_func != NULL)
2679 conn=(s->handshake_func == s->method->ssl_connect);
2681 if (s->method->version == meth->version)
2685 s->method->ssl_free(s);
2687 ret=s->method->ssl_new(s);
2691 s->handshake_func=meth->ssl_connect;
2693 s->handshake_func=meth->ssl_accept;
2698 int SSL_get_error(const SSL *s,int i)
2704 if (i > 0) return(SSL_ERROR_NONE);
2706 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2707 * etc, where we do encode the error */
2708 if ((l=ERR_peek_error()) != 0)
2710 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2711 return(SSL_ERROR_SYSCALL);
2713 return(SSL_ERROR_SSL);
2716 if ((i < 0) && SSL_want_read(s))
2718 bio=SSL_get_rbio(s);
2719 if (BIO_should_read(bio))
2720 return(SSL_ERROR_WANT_READ);
2721 else if (BIO_should_write(bio))
2722 /* This one doesn't make too much sense ... We never try
2723 * to write to the rbio, and an application program where
2724 * rbio and wbio are separate couldn't even know what it
2726 * However if we ever set s->rwstate incorrectly
2727 * (so that we have SSL_want_read(s) instead of
2728 * SSL_want_write(s)) and rbio and wbio *are* the same,
2729 * this test works around that bug; so it might be safer
2731 return(SSL_ERROR_WANT_WRITE);
2732 else if (BIO_should_io_special(bio))
2734 reason=BIO_get_retry_reason(bio);
2735 if (reason == BIO_RR_CONNECT)
2736 return(SSL_ERROR_WANT_CONNECT);
2737 else if (reason == BIO_RR_ACCEPT)
2738 return(SSL_ERROR_WANT_ACCEPT);
2740 return(SSL_ERROR_SYSCALL); /* unknown */
2744 if ((i < 0) && SSL_want_write(s))
2746 bio=SSL_get_wbio(s);
2747 if (BIO_should_write(bio))
2748 return(SSL_ERROR_WANT_WRITE);
2749 else if (BIO_should_read(bio))
2750 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2751 return(SSL_ERROR_WANT_READ);
2752 else if (BIO_should_io_special(bio))
2754 reason=BIO_get_retry_reason(bio);
2755 if (reason == BIO_RR_CONNECT)
2756 return(SSL_ERROR_WANT_CONNECT);
2757 else if (reason == BIO_RR_ACCEPT)
2758 return(SSL_ERROR_WANT_ACCEPT);
2760 return(SSL_ERROR_SYSCALL);
2763 if ((i < 0) && SSL_want_x509_lookup(s))
2765 return(SSL_ERROR_WANT_X509_LOOKUP);
2770 if (s->version == SSL2_VERSION)
2772 /* assume it is the socket being closed */
2773 return(SSL_ERROR_ZERO_RETURN);
2777 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2778 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2779 return(SSL_ERROR_ZERO_RETURN);
2782 return(SSL_ERROR_SYSCALL);
2785 int SSL_do_handshake(SSL *s)
2789 if (s->handshake_func == NULL)
2791 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2795 s->method->ssl_renegotiate_check(s);
2797 if (SSL_in_init(s) || SSL_in_before(s))
2799 ret=s->handshake_func(s);
2804 /* For the next 2 functions, SSL_clear() sets shutdown and so
2805 * one of these calls will reset it */
2806 void SSL_set_accept_state(SSL *s)
2810 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2811 s->handshake_func=s->method->ssl_accept;
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 void SSL_set_connect_state(SSL *s)
2822 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2823 s->handshake_func=s->method->ssl_connect;
2824 /* clear the current cipher */
2825 ssl_clear_cipher_ctx(s);
2826 ssl_clear_hash_ctx(&s->read_hash);
2827 ssl_clear_hash_ctx(&s->write_hash);
2830 int ssl_undefined_function(SSL *s)
2832 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2836 int ssl_undefined_void_function(void)
2838 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2842 int ssl_undefined_const_function(const SSL *s)
2844 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2848 SSL_METHOD *ssl_bad_method(int ver)
2850 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2854 const char *SSL_get_version(const SSL *s)
2856 if (s->version == TLS1_2_VERSION)
2858 else if (s->version == TLS1_1_VERSION)
2860 else if (s->version == TLS1_VERSION)
2862 else if (s->version == SSL3_VERSION)
2864 else if (s->version == SSL2_VERSION)
2870 SSL *SSL_dup(SSL *s)
2872 STACK_OF(X509_NAME) *sk;
2877 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2880 ret->version = s->version;
2881 ret->type = s->type;
2882 ret->method = s->method;
2884 if (s->session != NULL)
2886 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2887 SSL_copy_session_id(ret,s);
2891 /* No session has been established yet, so we have to expect
2892 * that s->cert or ret->cert will be changed later --
2893 * they should not both point to the same object,
2894 * and thus we can't use SSL_copy_session_id. */
2896 ret->method->ssl_free(ret);
2897 ret->method = s->method;
2898 ret->method->ssl_new(ret);
2900 if (s->cert != NULL)
2902 if (ret->cert != NULL)
2904 ssl_cert_free(ret->cert);
2906 ret->cert = ssl_cert_dup(s->cert);
2907 if (ret->cert == NULL)
2911 SSL_set_session_id_context(ret,
2912 s->sid_ctx, s->sid_ctx_length);
2915 ret->options=s->options;
2917 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2918 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2919 ret->msg_callback = s->msg_callback;
2920 ret->msg_callback_arg = s->msg_callback_arg;
2921 SSL_set_verify(ret,SSL_get_verify_mode(s),
2922 SSL_get_verify_callback(s));
2923 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2924 ret->generate_session_id = s->generate_session_id;
2926 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2928 ret->debug=s->debug;
2930 /* copy app data, a little dangerous perhaps */
2931 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2934 /* setup rbio, and wbio */
2935 if (s->rbio != NULL)
2937 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2940 if (s->wbio != NULL)
2942 if (s->wbio != s->rbio)
2944 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2948 ret->wbio=ret->rbio;
2950 ret->rwstate = s->rwstate;
2951 ret->in_handshake = s->in_handshake;
2952 ret->handshake_func = s->handshake_func;
2953 ret->server = s->server;
2954 ret->renegotiate = s->renegotiate;
2955 ret->new_session = s->new_session;
2956 ret->quiet_shutdown = s->quiet_shutdown;
2957 ret->shutdown=s->shutdown;
2958 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2959 ret->rstate=s->rstate;
2960 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2963 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2965 /* dup the cipher_list and cipher_list_by_id stacks */
2966 if (s->cipher_list != NULL)
2968 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2971 if (s->cipher_list_by_id != NULL)
2972 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2976 /* Dup the client_CA list */
2977 if (s->client_CA != NULL)
2979 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2981 for (i=0; i<sk_X509_NAME_num(sk); i++)
2983 xn=sk_X509_NAME_value(sk,i);
2984 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2995 if (ret != NULL) SSL_free(ret);
3001 void ssl_clear_cipher_ctx(SSL *s)
3003 if (s->enc_read_ctx != NULL)
3005 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
3006 OPENSSL_free(s->enc_read_ctx);
3007 s->enc_read_ctx=NULL;
3009 if (s->enc_write_ctx != NULL)
3011 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
3012 OPENSSL_free(s->enc_write_ctx);
3013 s->enc_write_ctx=NULL;
3015 #ifndef OPENSSL_NO_COMP
3016 if (s->expand != NULL)
3018 COMP_CTX_free(s->expand);
3021 if (s->compress != NULL)
3023 COMP_CTX_free(s->compress);
3029 X509 *SSL_get_certificate(const SSL *s)
3031 if (s->cert != NULL)
3032 return(s->cert->key->x509);
3037 EVP_PKEY *SSL_get_privatekey(const SSL *s)
3039 if (s->cert != NULL)
3040 return(s->cert->key->privatekey);
3045 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
3047 if (ctx->cert != NULL)
3048 return ctx->cert->key->x509;
3053 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
3055 if (ctx->cert != NULL)
3056 return ctx->cert->key->privatekey;
3061 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
3063 if ((s->session != NULL) && (s->session->cipher != NULL))
3064 return(s->session->cipher);
3067 #ifdef OPENSSL_NO_COMP
3068 const void *SSL_get_current_compression(SSL *s)
3072 const void *SSL_get_current_expansion(SSL *s)
3078 const COMP_METHOD *SSL_get_current_compression(SSL *s)
3080 if (s->compress != NULL)
3081 return(s->compress->meth);
3085 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
3087 if (s->expand != NULL)
3088 return(s->expand->meth);
3093 int ssl_init_wbio_buffer(SSL *s,int push)
3097 if (s->bbio == NULL)
3099 bbio=BIO_new(BIO_f_buffer());
3100 if (bbio == NULL) return(0);
3106 if (s->bbio == s->wbio)
3107 s->wbio=BIO_pop(s->wbio);
3109 (void)BIO_reset(bbio);
3110 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
3111 if (!BIO_set_read_buffer_size(bbio,1))
3113 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
3118 if (s->wbio != bbio)
3119 s->wbio=BIO_push(bbio,s->wbio);
3123 if (s->wbio == bbio)
3124 s->wbio=BIO_pop(bbio);
3129 void ssl_free_wbio_buffer(SSL *s)
3131 if (s->bbio == NULL) return;
3133 if (s->bbio == s->wbio)
3135 /* remove buffering */
3136 s->wbio=BIO_pop(s->wbio);
3137 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
3138 assert(s->wbio != NULL);
3145 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
3147 ctx->quiet_shutdown=mode;
3150 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
3152 return(ctx->quiet_shutdown);
3155 void SSL_set_quiet_shutdown(SSL *s,int mode)
3157 s->quiet_shutdown=mode;
3160 int SSL_get_quiet_shutdown(const SSL *s)
3162 return(s->quiet_shutdown);
3165 void SSL_set_shutdown(SSL *s,int mode)
3170 int SSL_get_shutdown(const SSL *s)
3172 return(s->shutdown);
3175 int SSL_version(const SSL *s)
3180 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
3185 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
3187 if (ssl->ctx == ctx)
3189 #ifndef OPENSSL_NO_TLSEXT
3191 ctx = ssl->initial_ctx;
3193 if (ssl->cert != NULL)
3194 ssl_cert_free(ssl->cert);
3195 ssl->cert = ssl_cert_dup(ctx->cert);
3196 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
3197 if (ssl->ctx != NULL)
3198 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3203 #ifndef OPENSSL_NO_STDIO
3204 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3206 return(X509_STORE_set_default_paths(ctx->cert_store));
3209 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3212 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
3216 void SSL_set_info_callback(SSL *ssl,
3217 void (*cb)(const SSL *ssl,int type,int val))
3219 ssl->info_callback=cb;
3222 /* One compiler (Diab DCC) doesn't like argument names in returned
3223 function pointer. */
3224 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
3226 return ssl->info_callback;
3229 int SSL_state(const SSL *ssl)
3234 void SSL_set_state(SSL *ssl, int state)
3239 void SSL_set_verify_result(SSL *ssl,long arg)
3241 ssl->verify_result=arg;
3244 long SSL_get_verify_result(const SSL *ssl)
3246 return(ssl->verify_result);
3249 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3250 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3252 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
3253 new_func, dup_func, free_func);
3256 int SSL_set_ex_data(SSL *s,int idx,void *arg)
3258 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3261 void *SSL_get_ex_data(const SSL *s,int idx)
3263 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3266 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3267 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3269 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3270 new_func, dup_func, free_func);
3273 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
3275 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3278 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
3280 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3288 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3290 return(ctx->cert_store);
3293 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
3295 if (ctx->cert_store != NULL)
3296 X509_STORE_free(ctx->cert_store);
3297 ctx->cert_store=store;
3300 int SSL_want(const SSL *s)
3306 * \brief Set the callback for generating temporary RSA keys.
3307 * \param ctx the SSL context.
3308 * \param cb the callback
3311 #ifndef OPENSSL_NO_RSA
3312 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
3316 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3319 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
3323 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3329 * \brief The RSA temporary key callback function.
3330 * \param ssl the SSL session.
3331 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3332 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3333 * of the required key in bits.
3334 * \return the temporary RSA key.
3335 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3338 RSA *cb(SSL *ssl,int is_export,int keylength)
3343 * \brief Set the callback for generating temporary DH keys.
3344 * \param ctx the SSL context.
3345 * \param dh the callback
3348 #ifndef OPENSSL_NO_DH
3349 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
3352 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3355 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
3358 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3362 #ifndef OPENSSL_NO_ECDH
3363 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3366 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3369 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3372 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3376 #ifndef OPENSSL_NO_PSK
3377 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3379 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3381 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3384 if (ctx->psk_identity_hint != NULL)
3385 OPENSSL_free(ctx->psk_identity_hint);
3386 if (identity_hint != NULL)
3388 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3389 if (ctx->psk_identity_hint == NULL)
3393 ctx->psk_identity_hint = NULL;
3397 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3402 if (s->session == NULL)
3403 return 1; /* session not created yet, ignored */
3405 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3407 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3410 if (s->session->psk_identity_hint != NULL)
3411 OPENSSL_free(s->session->psk_identity_hint);
3412 if (identity_hint != NULL)
3414 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3415 if (s->session->psk_identity_hint == NULL)
3419 s->session->psk_identity_hint = NULL;
3423 const char *SSL_get_psk_identity_hint(const SSL *s)
3425 if (s == NULL || s->session == NULL)
3427 return(s->session->psk_identity_hint);
3430 const char *SSL_get_psk_identity(const SSL *s)
3432 if (s == NULL || s->session == NULL)
3434 return(s->session->psk_identity);
3437 void SSL_set_psk_client_callback(SSL *s,
3438 unsigned int (*cb)(SSL *ssl, const char *hint,
3439 char *identity, unsigned int max_identity_len, unsigned char *psk,
3440 unsigned int max_psk_len))
3442 s->psk_client_callback = cb;
3445 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3446 unsigned int (*cb)(SSL *ssl, const char *hint,
3447 char *identity, unsigned int max_identity_len, unsigned char *psk,
3448 unsigned int max_psk_len))
3450 ctx->psk_client_callback = cb;
3453 void SSL_set_psk_server_callback(SSL *s,
3454 unsigned int (*cb)(SSL *ssl, const char *identity,
3455 unsigned char *psk, unsigned int max_psk_len))
3457 s->psk_server_callback = cb;
3460 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3461 unsigned int (*cb)(SSL *ssl, const char *identity,
3462 unsigned char *psk, unsigned int max_psk_len))
3464 ctx->psk_server_callback = cb;
3468 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))
3470 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3472 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))
3474 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3477 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3478 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
3479 * any. If EVP_MD pointer is passed, initializes ctx with this md
3480 * Returns newly allocated ctx;
3483 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
3485 ssl_clear_hash_ctx(hash);
3486 *hash = EVP_MD_CTX_create();
3487 if (md) EVP_DigestInit_ex(*hash,md,NULL);
3490 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3493 if (*hash) EVP_MD_CTX_destroy(*hash);
3497 void SSL_set_debug(SSL *s, int debug)
3502 int SSL_cache_hit(SSL *s)
3507 int SSL_is_server(SSL *s)
3512 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3513 #include "../crypto/bio/bss_file.c"
3516 IMPLEMENT_STACK_OF(SSL_CIPHER)
3517 IMPLEMENT_STACK_OF(SSL_COMP)
3518 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,