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;
325 s->not_resumable_session_cb=ctx->not_resumable_session_cb;
327 s->verify_depth=ctx->verify_depth;
329 s->sid_ctx_length=ctx->sid_ctx_length;
330 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
331 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
332 s->verify_callback=ctx->default_verify_callback;
333 s->generate_session_id=ctx->generate_session_id;
335 s->param = X509_VERIFY_PARAM_new();
338 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
340 s->purpose = ctx->purpose;
341 s->trust = ctx->trust;
343 s->quiet_shutdown=ctx->quiet_shutdown;
344 s->max_send_fragment = ctx->max_send_fragment;
346 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
348 #ifndef OPENSSL_NO_TLSEXT
349 s->tlsext_debug_cb = 0;
350 s->tlsext_debug_arg = NULL;
351 s->tlsext_ticket_expected = 0;
352 s->tlsext_status_type = -1;
353 s->tlsext_status_expected = 0;
354 s->tlsext_ocsp_ids = NULL;
355 s->tlsext_ocsp_exts = NULL;
356 s->tlsext_ocsp_resp = NULL;
357 s->tlsext_ocsp_resplen = -1;
358 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
360 #ifndef OPENSSL_NO_EC
361 if (ctx->tlsext_ecpointformatlist)
363 s->tlsext_ecpointformatlist =
364 BUF_memdup(ctx->tlsext_ecpointformatlist,
365 ctx->tlsext_ecpointformatlist_length);
366 if (!s->tlsext_ecpointformatlist)
368 s->tlsext_ecpointformatlist_length =
369 ctx->tlsext_ecpointformatlist_length;
371 if (ctx->tlsext_ellipticcurvelist)
373 s->tlsext_ellipticcurvelist =
374 BUF_memdup(ctx->tlsext_ellipticcurvelist,
375 ctx->tlsext_ellipticcurvelist_length);
376 if (!s->tlsext_ellipticcurvelist)
378 s->tlsext_ellipticcurvelist_length =
379 ctx->tlsext_ellipticcurvelist_length;
382 # ifndef OPENSSL_NO_NEXTPROTONEG
383 s->next_proto_negotiated = NULL;
386 if (s->ctx->alpn_client_proto_list)
388 s->alpn_client_proto_list =
389 OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
390 if (s->alpn_client_proto_list == NULL)
392 memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
393 s->ctx->alpn_client_proto_list_len);
394 s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
398 s->verify_result=X509_V_OK;
400 s->method=ctx->method;
402 if (!s->method->ssl_new(s))
406 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
410 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
412 #ifndef OPENSSL_NO_PSK
413 s->psk_client_callback=ctx->psk_client_callback;
414 s->psk_server_callback=ctx->psk_server_callback;
422 ssl_cert_free(s->cert);
424 SSL_CTX_free(s->ctx); /* decrement reference count */
427 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
431 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
432 unsigned int sid_ctx_len)
434 if(sid_ctx_len > sizeof ctx->sid_ctx)
436 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
439 ctx->sid_ctx_length=sid_ctx_len;
440 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
445 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
446 unsigned int sid_ctx_len)
448 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
450 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
453 ssl->sid_ctx_length=sid_ctx_len;
454 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
459 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
461 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
462 ctx->generate_session_id = cb;
463 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
467 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
469 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
470 ssl->generate_session_id = cb;
471 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
475 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
478 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
479 * we can "construct" a session to give us the desired check - ie. to
480 * find if there's a session in the hash table that would conflict with
481 * any new session built out of this id/id_len and the ssl_version in
482 * use by this SSL. */
485 if(id_len > sizeof r.session_id)
488 r.ssl_version = ssl->version;
489 r.session_id_length = id_len;
490 memcpy(r.session_id, id, id_len);
491 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
492 * callback is calling us to check the uniqueness of a shorter ID, it
493 * must be compared as a padded-out ID because that is what it will be
494 * converted to when the callback has finished choosing it. */
495 if((r.ssl_version == SSL2_VERSION) &&
496 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
498 memset(r.session_id + id_len, 0,
499 SSL2_SSL_SESSION_ID_LENGTH - id_len);
500 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
503 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
504 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
505 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
509 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
511 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
514 int SSL_set_purpose(SSL *s, int purpose)
516 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
519 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
521 return X509_VERIFY_PARAM_set_trust(s->param, trust);
524 int SSL_set_trust(SSL *s, int trust)
526 return X509_VERIFY_PARAM_set_trust(s->param, trust);
529 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
531 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
534 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
536 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
539 void SSL_certs_clear(SSL *s)
541 ssl_cert_clear_certs(s->cert);
544 void SSL_free(SSL *s)
551 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
559 fprintf(stderr,"SSL_free, bad reference count\n");
565 X509_VERIFY_PARAM_free(s->param);
567 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
571 /* If the buffering BIO is in place, pop it off */
572 if (s->bbio == s->wbio)
574 s->wbio=BIO_pop(s->wbio);
580 BIO_free_all(s->rbio);
581 if ((s->wbio != NULL) && (s->wbio != s->rbio))
582 BIO_free_all(s->wbio);
584 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
586 /* add extra stuff */
587 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
588 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
590 /* Make the next call work :-) */
591 if (s->session != NULL)
593 ssl_clear_bad_session(s);
594 SSL_SESSION_free(s->session);
597 ssl_clear_cipher_ctx(s);
598 ssl_clear_hash_ctx(&s->read_hash);
599 ssl_clear_hash_ctx(&s->write_hash);
601 if (s->cert != NULL) ssl_cert_free(s->cert);
602 /* Free up if allocated */
604 #ifndef OPENSSL_NO_TLSEXT
605 if (s->tlsext_hostname)
606 OPENSSL_free(s->tlsext_hostname);
607 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx);
608 #ifndef OPENSSL_NO_EC
609 if (s->tlsext_ecpointformatlist) OPENSSL_free(s->tlsext_ecpointformatlist);
610 if (s->tlsext_ellipticcurvelist) OPENSSL_free(s->tlsext_ellipticcurvelist);
611 #endif /* OPENSSL_NO_EC */
612 if (s->tlsext_opaque_prf_input) OPENSSL_free(s->tlsext_opaque_prf_input);
613 if (s->tlsext_ocsp_exts)
614 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
615 X509_EXTENSION_free);
616 if (s->tlsext_ocsp_ids)
617 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
618 if (s->tlsext_ocsp_resp)
619 OPENSSL_free(s->tlsext_ocsp_resp);
620 if (s->alpn_client_proto_list)
621 OPENSSL_free(s->alpn_client_proto_list);
624 if (s->client_CA != NULL)
625 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
627 if (s->method != NULL) s->method->ssl_free(s);
629 if (s->ctx) SSL_CTX_free(s->ctx);
631 #ifndef OPENSSL_NO_KRB5
632 if (s->kssl_ctx != NULL)
633 kssl_ctx_free(s->kssl_ctx);
634 #endif /* OPENSSL_NO_KRB5 */
636 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
637 if (s->next_proto_negotiated)
638 OPENSSL_free(s->next_proto_negotiated);
641 if (s->srtp_profiles)
642 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
647 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
649 /* If the output buffering BIO is still in place, remove it
653 if (s->wbio == s->bbio)
655 s->wbio=s->wbio->next_bio;
656 s->bbio->next_bio=NULL;
659 if ((s->rbio != NULL) && (s->rbio != rbio))
660 BIO_free_all(s->rbio);
661 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
662 BIO_free_all(s->wbio);
667 BIO *SSL_get_rbio(const SSL *s)
670 BIO *SSL_get_wbio(const SSL *s)
673 int SSL_get_fd(const SSL *s)
675 return(SSL_get_rfd(s));
678 int SSL_get_rfd(const SSL *s)
684 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
690 int SSL_get_wfd(const SSL *s)
696 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
702 #ifndef OPENSSL_NO_SOCK
703 int SSL_set_fd(SSL *s,int fd)
708 bio=BIO_new(BIO_s_socket());
712 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
715 BIO_set_fd(bio,fd,BIO_NOCLOSE);
716 SSL_set_bio(s,bio,bio);
722 int SSL_set_wfd(SSL *s,int fd)
727 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
728 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
730 bio=BIO_new(BIO_s_socket());
733 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
734 BIO_set_fd(bio,fd,BIO_NOCLOSE);
735 SSL_set_bio(s,SSL_get_rbio(s),bio);
738 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
744 int SSL_set_rfd(SSL *s,int fd)
749 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
750 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
752 bio=BIO_new(BIO_s_socket());
756 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
759 BIO_set_fd(bio,fd,BIO_NOCLOSE);
760 SSL_set_bio(s,bio,SSL_get_wbio(s));
763 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
771 /* return length of latest Finished message we sent, copy to 'buf' */
772 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
778 ret = s->s3->tmp.finish_md_len;
781 memcpy(buf, s->s3->tmp.finish_md, count);
786 /* return length of latest Finished message we expected, copy to 'buf' */
787 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
793 ret = s->s3->tmp.peer_finish_md_len;
796 memcpy(buf, s->s3->tmp.peer_finish_md, count);
802 int SSL_get_verify_mode(const SSL *s)
804 return(s->verify_mode);
807 int SSL_get_verify_depth(const SSL *s)
809 return X509_VERIFY_PARAM_get_depth(s->param);
812 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
814 return(s->verify_callback);
817 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
819 return(ctx->verify_mode);
822 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
824 return X509_VERIFY_PARAM_get_depth(ctx->param);
827 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
829 return(ctx->default_verify_callback);
832 void SSL_set_verify(SSL *s,int mode,
833 int (*callback)(int ok,X509_STORE_CTX *ctx))
836 if (callback != NULL)
837 s->verify_callback=callback;
840 void SSL_set_verify_depth(SSL *s,int depth)
842 X509_VERIFY_PARAM_set_depth(s->param, depth);
845 void SSL_set_read_ahead(SSL *s,int yes)
850 int SSL_get_read_ahead(const SSL *s)
852 return(s->read_ahead);
855 int SSL_pending(const SSL *s)
857 /* SSL_pending cannot work properly if read-ahead is enabled
858 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
859 * and it is impossible to fix since SSL_pending cannot report
860 * errors that may be observed while scanning the new data.
861 * (Note that SSL_pending() is often used as a boolean value,
862 * so we'd better not return -1.)
864 return(s->method->ssl_pending(s));
867 X509 *SSL_get_peer_certificate(const SSL *s)
871 if ((s == NULL) || (s->session == NULL))
876 if (r == NULL) return(r);
878 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
883 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
887 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
890 r=s->session->sess_cert->cert_chain;
892 /* If we are a client, cert_chain includes the peer's own
893 * certificate; if we are a server, it does not. */
898 /* Now in theory, since the calling process own 't' it should be safe to
899 * modify. We need to be able to read f without being hassled */
900 void SSL_copy_session_id(SSL *t,const SSL *f)
904 /* Do we need to to SSL locking? */
905 SSL_set_session(t,SSL_get_session(f));
907 /* what if we are setup as SSLv2 but want to talk SSLv3 or
909 if (t->method != f->method)
911 t->method->ssl_free(t); /* cleanup current */
912 t->method=f->method; /* change method */
913 t->method->ssl_new(t); /* setup new */
919 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
924 if (tmp != NULL) ssl_cert_free(tmp);
925 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
928 /* Fix this so it checks all the valid key/cert options */
929 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
931 if ( (ctx == NULL) ||
932 (ctx->cert == NULL) ||
933 (ctx->cert->key->x509 == NULL))
935 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
938 if (ctx->cert->key->privatekey == NULL)
940 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
943 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
946 /* Fix this function so that it takes an optional type parameter */
947 int SSL_check_private_key(const SSL *ssl)
951 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
954 if (ssl->cert == NULL)
956 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
959 if (ssl->cert->key->x509 == NULL)
961 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
964 if (ssl->cert->key->privatekey == NULL)
966 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
969 return(X509_check_private_key(ssl->cert->key->x509,
970 ssl->cert->key->privatekey));
973 int SSL_accept(SSL *s)
975 if (s->handshake_func == 0)
976 /* Not properly initialized yet */
977 SSL_set_accept_state(s);
979 return(s->method->ssl_accept(s));
982 int SSL_connect(SSL *s)
984 if (s->handshake_func == 0)
985 /* Not properly initialized yet */
986 SSL_set_connect_state(s);
988 return(s->method->ssl_connect(s));
991 long SSL_get_default_timeout(const SSL *s)
993 return(s->method->get_timeout());
996 int SSL_read(SSL *s,void *buf,int num)
998 if (s->handshake_func == 0)
1000 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
1004 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
1006 s->rwstate=SSL_NOTHING;
1009 return(s->method->ssl_read(s,buf,num));
1012 int SSL_peek(SSL *s,void *buf,int num)
1014 if (s->handshake_func == 0)
1016 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
1020 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
1024 return(s->method->ssl_peek(s,buf,num));
1027 int SSL_write(SSL *s,const void *buf,int num)
1029 if (s->handshake_func == 0)
1031 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
1035 if (s->shutdown & SSL_SENT_SHUTDOWN)
1037 s->rwstate=SSL_NOTHING;
1038 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
1041 return(s->method->ssl_write(s,buf,num));
1044 int SSL_shutdown(SSL *s)
1046 /* Note that this function behaves differently from what one might
1047 * expect. Return values are 0 for no success (yet),
1048 * 1 for success; but calling it once is usually not enough,
1049 * even if blocking I/O is used (see ssl3_shutdown).
1052 if (s->handshake_func == 0)
1054 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1058 if ((s != NULL) && !SSL_in_init(s))
1059 return(s->method->ssl_shutdown(s));
1064 int SSL_renegotiate(SSL *s)
1066 if (s->renegotiate == 0)
1071 return(s->method->ssl_renegotiate(s));
1074 int SSL_renegotiate_abbreviated(SSL *s)
1076 if (s->renegotiate == 0)
1081 return(s->method->ssl_renegotiate(s));
1084 int SSL_renegotiate_pending(SSL *s)
1086 /* becomes true when negotiation is requested;
1087 * false again once a handshake has finished */
1088 return (s->renegotiate != 0);
1091 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
1097 case SSL_CTRL_GET_READ_AHEAD:
1098 return(s->read_ahead);
1099 case SSL_CTRL_SET_READ_AHEAD:
1104 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1105 s->msg_callback_arg = parg;
1108 case SSL_CTRL_OPTIONS:
1109 return(s->options|=larg);
1110 case SSL_CTRL_CLEAR_OPTIONS:
1111 return(s->options&=~larg);
1113 return(s->mode|=larg);
1114 case SSL_CTRL_CLEAR_MODE:
1115 return(s->mode &=~larg);
1116 case SSL_CTRL_GET_MAX_CERT_LIST:
1117 return(s->max_cert_list);
1118 case SSL_CTRL_SET_MAX_CERT_LIST:
1120 s->max_cert_list=larg;
1122 case SSL_CTRL_SET_MTU:
1123 #ifndef OPENSSL_NO_DTLS1
1124 if (larg < (long)dtls1_min_mtu())
1134 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1135 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1137 s->max_send_fragment = larg;
1139 case SSL_CTRL_GET_RI_SUPPORT:
1141 return s->s3->send_connection_binding;
1143 case SSL_CTRL_CERT_FLAGS:
1144 return(s->cert->cert_flags|=larg);
1145 case SSL_CTRL_CLEAR_CERT_FLAGS:
1146 return(s->cert->cert_flags &=~larg);
1148 case SSL_CTRL_GET_RAW_CIPHERLIST:
1151 if (s->cert->ciphers_raw == NULL)
1153 *(unsigned char **)parg = s->cert->ciphers_raw;
1154 return (int)s->cert->ciphers_rawlen;
1157 return ssl_put_cipher_by_char(s,NULL,NULL);
1159 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1163 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1167 case SSL_CTRL_SET_MSG_CALLBACK:
1168 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1172 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1176 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1178 return ctx->sessions;
1181 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1184 /* For some cases with ctx == NULL perform syntax checks */
1189 #ifndef OPENSSL_NO_EC
1190 case SSL_CTRL_SET_CURVES_LIST:
1191 return tls1_set_curves_list(NULL, NULL, parg);
1193 case SSL_CTRL_SET_SIGALGS_LIST:
1194 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1195 return tls1_set_sigalgs_list(NULL, parg, 0);
1203 case SSL_CTRL_GET_READ_AHEAD:
1204 return(ctx->read_ahead);
1205 case SSL_CTRL_SET_READ_AHEAD:
1207 ctx->read_ahead=larg;
1210 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1211 ctx->msg_callback_arg = parg;
1214 case SSL_CTRL_GET_MAX_CERT_LIST:
1215 return(ctx->max_cert_list);
1216 case SSL_CTRL_SET_MAX_CERT_LIST:
1217 l=ctx->max_cert_list;
1218 ctx->max_cert_list=larg;
1221 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1222 l=ctx->session_cache_size;
1223 ctx->session_cache_size=larg;
1225 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1226 return(ctx->session_cache_size);
1227 case SSL_CTRL_SET_SESS_CACHE_MODE:
1228 l=ctx->session_cache_mode;
1229 ctx->session_cache_mode=larg;
1231 case SSL_CTRL_GET_SESS_CACHE_MODE:
1232 return(ctx->session_cache_mode);
1234 case SSL_CTRL_SESS_NUMBER:
1235 return(lh_SSL_SESSION_num_items(ctx->sessions));
1236 case SSL_CTRL_SESS_CONNECT:
1237 return(ctx->stats.sess_connect);
1238 case SSL_CTRL_SESS_CONNECT_GOOD:
1239 return(ctx->stats.sess_connect_good);
1240 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1241 return(ctx->stats.sess_connect_renegotiate);
1242 case SSL_CTRL_SESS_ACCEPT:
1243 return(ctx->stats.sess_accept);
1244 case SSL_CTRL_SESS_ACCEPT_GOOD:
1245 return(ctx->stats.sess_accept_good);
1246 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1247 return(ctx->stats.sess_accept_renegotiate);
1248 case SSL_CTRL_SESS_HIT:
1249 return(ctx->stats.sess_hit);
1250 case SSL_CTRL_SESS_CB_HIT:
1251 return(ctx->stats.sess_cb_hit);
1252 case SSL_CTRL_SESS_MISSES:
1253 return(ctx->stats.sess_miss);
1254 case SSL_CTRL_SESS_TIMEOUTS:
1255 return(ctx->stats.sess_timeout);
1256 case SSL_CTRL_SESS_CACHE_FULL:
1257 return(ctx->stats.sess_cache_full);
1258 case SSL_CTRL_OPTIONS:
1259 return(ctx->options|=larg);
1260 case SSL_CTRL_CLEAR_OPTIONS:
1261 return(ctx->options&=~larg);
1263 return(ctx->mode|=larg);
1264 case SSL_CTRL_CLEAR_MODE:
1265 return(ctx->mode&=~larg);
1266 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1267 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1269 ctx->max_send_fragment = larg;
1271 case SSL_CTRL_CERT_FLAGS:
1272 return(ctx->cert->cert_flags|=larg);
1273 case SSL_CTRL_CLEAR_CERT_FLAGS:
1274 return(ctx->cert->cert_flags &=~larg);
1276 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1280 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1284 case SSL_CTRL_SET_MSG_CALLBACK:
1285 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1289 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1293 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1301 return((l > 0)?1:-1);
1304 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1305 const SSL_CIPHER * const *bp)
1309 l=(*ap)->id-(*bp)->id;
1313 return((l > 0)?1:-1);
1316 /** return a STACK of the ciphers available for the SSL and in order of
1318 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1322 if (s->cipher_list != NULL)
1324 return(s->cipher_list);
1326 else if ((s->ctx != NULL) &&
1327 (s->ctx->cipher_list != NULL))
1329 return(s->ctx->cipher_list);
1335 /** return a STACK of the ciphers available for the SSL and in order of
1337 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1341 if (s->cipher_list_by_id != NULL)
1343 return(s->cipher_list_by_id);
1345 else if ((s->ctx != NULL) &&
1346 (s->ctx->cipher_list_by_id != NULL))
1348 return(s->ctx->cipher_list_by_id);
1354 /** The old interface to get the same thing as SSL_get_ciphers() */
1355 const char *SSL_get_cipher_list(const SSL *s,int n)
1358 STACK_OF(SSL_CIPHER) *sk;
1360 if (s == NULL) return(NULL);
1361 sk=SSL_get_ciphers(s);
1362 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1364 c=sk_SSL_CIPHER_value(sk,n);
1365 if (c == NULL) return(NULL);
1369 /** specify the ciphers to be used by default by the SSL_CTX */
1370 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1372 STACK_OF(SSL_CIPHER) *sk;
1374 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1375 &ctx->cipher_list_by_id,str, ctx->cert);
1376 /* ssl_create_cipher_list may return an empty stack if it
1377 * was unable to find a cipher matching the given rule string
1378 * (for example if the rule string specifies a cipher which
1379 * has been disabled). This is not an error as far as
1380 * ssl_create_cipher_list is concerned, and hence
1381 * ctx->cipher_list and ctx->cipher_list_by_id has been
1385 else if (sk_SSL_CIPHER_num(sk) == 0)
1387 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1393 /** specify the ciphers to be used by the SSL */
1394 int SSL_set_cipher_list(SSL *s,const char *str)
1396 STACK_OF(SSL_CIPHER) *sk;
1398 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1399 &s->cipher_list_by_id,str, s->cert);
1400 /* see comment in SSL_CTX_set_cipher_list */
1403 else if (sk_SSL_CIPHER_num(sk) == 0)
1405 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1411 /* works well for SSLv2, not so good for SSLv3 */
1412 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1415 STACK_OF(SSL_CIPHER) *sk;
1419 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1424 sk=s->session->ciphers;
1425 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1429 c=sk_SSL_CIPHER_value(sk,i);
1447 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1448 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1454 int no_scsv = s->renegotiate;
1455 /* Set disabled masks for this session */
1456 ssl_set_client_disabled(s);
1458 if (sk == NULL) return(0);
1461 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1463 c=sk_SSL_CIPHER_value(sk,i);
1464 /* Skip disabled ciphers */
1465 if (c->algorithm_ssl & ct->mask_ssl ||
1466 c->algorithm_mkey & ct->mask_k ||
1467 c->algorithm_auth & ct->mask_a)
1469 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1470 if (c->id == SSL3_CK_SCSV)
1478 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1481 /* If p == q, no ciphers and caller indicates an error. Otherwise
1482 * add SCSV if not renegotiating.
1484 if (p != q && !no_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 ? put_cb(&scsv,p) : ssl_put_cipher_by_char(s,&scsv,p);
1492 #ifdef OPENSSL_RI_DEBUG
1493 fprintf(stderr, "SCSV sent by client\n");
1500 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1501 STACK_OF(SSL_CIPHER) **skp)
1503 const SSL_CIPHER *c;
1504 STACK_OF(SSL_CIPHER) *sk;
1507 s->s3->send_connection_binding = 0;
1509 n=ssl_put_cipher_by_char(s,NULL,NULL);
1512 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1515 if ((skp == NULL) || (*skp == NULL))
1516 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1520 sk_SSL_CIPHER_zero(sk);
1523 if (s->cert->ciphers_raw)
1524 OPENSSL_free(s->cert->ciphers_raw);
1525 s->cert->ciphers_raw = BUF_memdup(p, num);
1526 if (s->cert->ciphers_raw == NULL)
1528 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1531 s->cert->ciphers_rawlen = (size_t)num;
1533 for (i=0; i<num; i+=n)
1535 /* Check for SCSV */
1536 if (s->s3 && (n != 3 || !p[0]) &&
1537 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1538 (p[n-1] == (SSL3_CK_SCSV & 0xff)))
1540 /* SCSV fatal if renegotiating */
1543 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1544 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1547 s->s3->send_connection_binding = 1;
1549 #ifdef OPENSSL_RI_DEBUG
1550 fprintf(stderr, "SCSV received by server\n");
1555 c=ssl_get_cipher_by_char(s,p);
1559 if (!sk_SSL_CIPHER_push(sk,c))
1561 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1571 if ((skp == NULL) || (*skp == NULL))
1572 sk_SSL_CIPHER_free(sk);
1577 #ifndef OPENSSL_NO_TLSEXT
1578 /** return a servername extension value if provided in Client Hello, or NULL.
1579 * So far, only host_name types are defined (RFC 3546).
1582 const char *SSL_get_servername(const SSL *s, const int type)
1584 if (type != TLSEXT_NAMETYPE_host_name)
1587 return s->session && !s->tlsext_hostname ?
1588 s->session->tlsext_hostname :
1592 int SSL_get_servername_type(const SSL *s)
1594 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1595 return TLSEXT_NAMETYPE_host_name;
1599 # ifndef OPENSSL_NO_NEXTPROTONEG
1600 /* SSL_select_next_proto implements the standard protocol selection. It is
1601 * expected that this function is called from the callback set by
1602 * SSL_CTX_set_next_proto_select_cb.
1604 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
1605 * strings. The length byte itself is not included in the length. A byte
1606 * string of length 0 is invalid. No byte string may be truncated.
1608 * The current, but experimental algorithm for selecting the protocol is:
1610 * 1) If the server doesn't support NPN then this is indicated to the
1611 * callback. In this case, the client application has to abort the connection
1612 * or have a default application level protocol.
1614 * 2) If the server supports NPN, but advertises an empty list then the
1615 * client selects the first protcol in its list, but indicates via the
1616 * API that this fallback case was enacted.
1618 * 3) Otherwise, the client finds the first protocol in the server's list
1619 * that it supports and selects this protocol. This is because it's
1620 * assumed that the server has better information about which protocol
1621 * a client should use.
1623 * 4) If the client doesn't support any of the server's advertised
1624 * protocols, then this is treated the same as case 2.
1627 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or
1628 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1630 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)
1633 const unsigned char *result;
1634 int status = OPENSSL_NPN_UNSUPPORTED;
1636 /* For each protocol in server preference order, see if we support it. */
1637 for (i = 0; i < server_len; )
1639 for (j = 0; j < client_len; )
1641 if (server[i] == client[j] &&
1642 memcmp(&server[i+1], &client[j+1], server[i]) == 0)
1644 /* We found a match */
1645 result = &server[i];
1646 status = OPENSSL_NPN_NEGOTIATED;
1656 /* There's no overlap between our protocols and the server's list. */
1658 status = OPENSSL_NPN_NO_OVERLAP;
1661 *out = (unsigned char *) result + 1;
1662 *outlen = result[0];
1666 /* SSL_get0_next_proto_negotiated sets *data and *len to point to the client's
1667 * requested protocol for this connection and returns 0. If the client didn't
1668 * request any protocol, then *data is set to NULL.
1670 * Note that the client can request any protocol it chooses. The value returned
1671 * from this function need not be a member of the list of supported protocols
1672 * provided by the callback.
1674 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, unsigned *len)
1676 *data = s->next_proto_negotiated;
1680 *len = s->next_proto_negotiated_len;
1684 /* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a
1685 * TLS server needs a list of supported protocols for Next Protocol
1686 * Negotiation. The returned list must be in wire format. The list is returned
1687 * by setting |out| to point to it and |outlen| to its length. This memory will
1688 * not be modified, but one should assume that the SSL* keeps a reference to
1691 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. Otherwise, no
1692 * such extension will be included in the ServerHello. */
1693 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)
1695 ctx->next_protos_advertised_cb = cb;
1696 ctx->next_protos_advertised_cb_arg = arg;
1699 /* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1700 * client needs to select a protocol from the server's provided list. |out|
1701 * must be set to point to the selected protocol (which may be within |in|).
1702 * The length of the protocol name must be written into |outlen|. The server's
1703 * advertised protocols are provided in |in| and |inlen|. The callback can
1704 * assume that |in| is syntactically valid.
1706 * The client must select a protocol. It is fatal to the connection if this
1707 * callback returns a value other than SSL_TLSEXT_ERR_OK.
1709 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)
1711 ctx->next_proto_select_cb = cb;
1712 ctx->next_proto_select_cb_arg = arg;
1716 int SSL_CTX_set_custom_cli_ext(SSL_CTX *ctx, unsigned short ext_type,
1717 custom_cli_ext_first_cb_fn fn1,
1718 custom_cli_ext_second_cb_fn fn2, void* arg)
1721 custom_cli_ext_record* record;
1723 /* Check for duplicates */
1724 for (i=0; i < ctx->custom_cli_ext_records_count; i++)
1725 if (ext_type == ctx->custom_cli_ext_records[i].ext_type)
1728 ctx->custom_cli_ext_records = OPENSSL_realloc(ctx->custom_cli_ext_records,
1729 (ctx->custom_cli_ext_records_count + 1) *
1730 sizeof(custom_cli_ext_record));
1731 if (!ctx->custom_cli_ext_records) {
1732 ctx->custom_cli_ext_records_count = 0;
1735 ctx->custom_cli_ext_records_count++;
1736 record = &ctx->custom_cli_ext_records[ctx->custom_cli_ext_records_count - 1];
1737 record->ext_type = ext_type;
1744 int SSL_CTX_set_custom_srv_ext(SSL_CTX *ctx, unsigned short ext_type,
1745 custom_srv_ext_first_cb_fn fn1,
1746 custom_srv_ext_second_cb_fn fn2, void* arg)
1749 custom_srv_ext_record* record;
1751 /* Check for duplicates */
1752 for (i=0; i < ctx->custom_srv_ext_records_count; i++)
1753 if (ext_type == ctx->custom_srv_ext_records[i].ext_type)
1756 ctx->custom_srv_ext_records = OPENSSL_realloc(ctx->custom_srv_ext_records,
1757 (ctx->custom_srv_ext_records_count + 1) *
1758 sizeof(custom_srv_ext_record));
1759 if (!ctx->custom_srv_ext_records) {
1760 ctx->custom_srv_ext_records_count = 0;
1763 ctx->custom_srv_ext_records_count++;
1764 record = &ctx->custom_srv_ext_records[ctx->custom_srv_ext_records_count - 1];
1765 record->ext_type = ext_type;
1772 /* SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1773 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1774 * length-prefixed strings).
1776 * Returns 0 on success. */
1777 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char* protos,
1778 unsigned protos_len)
1780 if (ctx->alpn_client_proto_list)
1781 OPENSSL_free(ctx->alpn_client_proto_list);
1783 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1784 if (!ctx->alpn_client_proto_list)
1786 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
1787 ctx->alpn_client_proto_list_len = protos_len;
1792 /* SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1793 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1794 * length-prefixed strings).
1796 * Returns 0 on success. */
1797 int SSL_set_alpn_protos(SSL *ssl, const unsigned char* protos,
1798 unsigned protos_len)
1800 if (ssl->alpn_client_proto_list)
1801 OPENSSL_free(ssl->alpn_client_proto_list);
1803 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1804 if (!ssl->alpn_client_proto_list)
1806 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
1807 ssl->alpn_client_proto_list_len = protos_len;
1812 /* SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is called
1813 * during ClientHello processing in order to select an ALPN protocol from the
1814 * client's list of offered protocols. */
1815 void SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx,
1816 int (*cb) (SSL *ssl,
1817 const unsigned char **out,
1818 unsigned char *outlen,
1819 const unsigned char *in,
1824 ctx->alpn_select_cb = cb;
1825 ctx->alpn_select_cb_arg = arg;
1828 /* SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
1829 * On return it sets |*data| to point to |*len| bytes of protocol name (not
1830 * including the leading length-prefix byte). If the server didn't respond with
1831 * a negotiated protocol then |*len| will be zero. */
1832 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1837 *data = ssl->s3->alpn_selected;
1841 *len = ssl->s3->alpn_selected_len;
1844 int SSL_CTX_set_cli_supp_data(SSL_CTX *ctx,
1845 unsigned short supp_data_type,
1846 cli_supp_data_first_cb_fn fn1,
1847 cli_supp_data_second_cb_fn fn2, void* arg)
1850 cli_supp_data_record* record;
1852 /* Check for duplicates */
1853 for (i=0; i < ctx->cli_supp_data_records_count; i++)
1854 if (supp_data_type == ctx->cli_supp_data_records[i].supp_data_type)
1857 ctx->cli_supp_data_records = OPENSSL_realloc(ctx->cli_supp_data_records,
1858 (ctx->cli_supp_data_records_count+1) * sizeof(cli_supp_data_record));
1859 if (!ctx->cli_supp_data_records)
1861 ctx->cli_supp_data_records_count = 0;
1864 ctx->cli_supp_data_records_count++;
1865 record = &ctx->cli_supp_data_records[ctx->cli_supp_data_records_count - 1];
1866 record->supp_data_type = supp_data_type;
1873 int SSL_CTX_set_srv_supp_data(SSL_CTX *ctx,
1874 unsigned short supp_data_type,
1875 srv_supp_data_first_cb_fn fn1,
1876 srv_supp_data_second_cb_fn fn2, void* arg)
1879 srv_supp_data_record* record;
1881 /* Check for duplicates */
1882 for (i=0; i < ctx->srv_supp_data_records_count; i++)
1883 if (supp_data_type == ctx->srv_supp_data_records[i].supp_data_type)
1886 ctx->srv_supp_data_records = OPENSSL_realloc(ctx->srv_supp_data_records,
1887 (ctx->srv_supp_data_records_count+1) * sizeof(srv_supp_data_record));
1888 if (!ctx->srv_supp_data_records)
1890 ctx->srv_supp_data_records_count = 0;
1893 ctx->srv_supp_data_records_count++;
1894 record = &ctx->srv_supp_data_records[ctx->srv_supp_data_records_count - 1];
1895 record->supp_data_type = supp_data_type;
1903 #endif /* !OPENSSL_NO_TLSEXT */
1905 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1906 const char *label, size_t llen, const unsigned char *p, size_t plen,
1909 if (s->version < TLS1_VERSION)
1912 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1917 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1922 ((unsigned int) a->session_id[0] )|
1923 ((unsigned int) a->session_id[1]<< 8L)|
1924 ((unsigned long)a->session_id[2]<<16L)|
1925 ((unsigned long)a->session_id[3]<<24L);
1929 /* NB: If this function (or indeed the hash function which uses a sort of
1930 * coarser function than this one) is changed, ensure
1931 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1932 * able to construct an SSL_SESSION that will collide with any existing session
1933 * with a matching session ID. */
1934 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1936 if (a->ssl_version != b->ssl_version)
1938 if (a->session_id_length != b->session_id_length)
1940 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1943 /* These wrapper functions should remain rather than redeclaring
1944 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1945 * variable. The reason is that the functions aren't static, they're exposed via
1947 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1948 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1950 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1956 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1961 if (FIPS_mode() && (meth->version < TLS1_VERSION))
1963 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1968 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1970 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1973 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1977 memset(ret,0,sizeof(SSL_CTX));
1981 ret->cert_store=NULL;
1982 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1983 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1984 ret->session_cache_head=NULL;
1985 ret->session_cache_tail=NULL;
1987 /* We take the system default */
1988 ret->session_timeout=meth->get_timeout();
1990 ret->new_session_cb=0;
1991 ret->remove_session_cb=0;
1992 ret->get_session_cb=0;
1993 ret->generate_session_id=0;
1995 memset((char *)&ret->stats,0,sizeof(ret->stats));
1998 ret->quiet_shutdown=0;
2000 /* ret->cipher=NULL;*/
2001 /* ret->s2->challenge=NULL;
2002 ret->master_key=NULL;
2004 ret->s2->conn_id=NULL; */
2006 ret->info_callback=NULL;
2008 ret->app_verify_callback=0;
2009 ret->app_verify_arg=NULL;
2011 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
2013 ret->msg_callback=0;
2014 ret->msg_callback_arg=NULL;
2015 ret->verify_mode=SSL_VERIFY_NONE;
2017 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
2019 ret->sid_ctx_length=0;
2020 ret->default_verify_callback=NULL;
2021 if ((ret->cert=ssl_cert_new()) == NULL)
2024 ret->default_passwd_callback=0;
2025 ret->default_passwd_callback_userdata=NULL;
2026 ret->client_cert_cb=0;
2027 ret->app_gen_cookie_cb=0;
2028 ret->app_verify_cookie_cb=0;
2030 ret->sessions=lh_SSL_SESSION_new();
2031 if (ret->sessions == NULL) goto err;
2032 ret->cert_store=X509_STORE_new();
2033 if (ret->cert_store == NULL) goto err;
2035 ssl_create_cipher_list(ret->method,
2036 &ret->cipher_list,&ret->cipher_list_by_id,
2037 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, ret->cert);
2038 if (ret->cipher_list == NULL
2039 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
2041 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
2045 ret->param = X509_VERIFY_PARAM_new();
2049 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
2051 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
2054 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
2056 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
2059 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
2061 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
2065 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
2068 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
2070 ret->extra_certs=NULL;
2071 /* No compression for DTLS */
2072 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
2073 ret->comp_methods=SSL_COMP_get_compression_methods();
2075 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
2077 #ifndef OPENSSL_NO_TLSEXT
2078 ret->tlsext_servername_callback = 0;
2079 ret->tlsext_servername_arg = NULL;
2080 /* Setup RFC4507 ticket keys */
2081 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
2082 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
2083 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
2084 ret->options |= SSL_OP_NO_TICKET;
2086 ret->tlsext_status_cb = 0;
2087 ret->tlsext_status_arg = NULL;
2089 # ifndef OPENSSL_NO_NEXTPROTONEG
2090 ret->next_protos_advertised_cb = 0;
2091 ret->next_proto_select_cb = 0;
2094 #ifndef OPENSSL_NO_PSK
2095 ret->psk_identity_hint=NULL;
2096 ret->psk_client_callback=NULL;
2097 ret->psk_server_callback=NULL;
2099 #ifndef OPENSSL_NO_SRP
2100 SSL_CTX_SRP_CTX_init(ret);
2102 ret->custom_cli_ext_records = NULL;
2103 ret->custom_cli_ext_records_count = 0;
2104 ret->custom_srv_ext_records = NULL;
2105 ret->custom_srv_ext_records_count = 0;
2106 ret->cli_supp_data_records = NULL;
2107 ret->cli_supp_data_records_count = 0;
2108 ret->srv_supp_data_records = NULL;
2109 ret->srv_supp_data_records_count = 0;
2110 #ifndef OPENSSL_NO_BUF_FREELISTS
2111 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
2112 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
2113 if (!ret->rbuf_freelist)
2115 ret->rbuf_freelist->chunklen = 0;
2116 ret->rbuf_freelist->len = 0;
2117 ret->rbuf_freelist->head = NULL;
2118 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
2119 if (!ret->wbuf_freelist)
2121 OPENSSL_free(ret->rbuf_freelist);
2124 ret->wbuf_freelist->chunklen = 0;
2125 ret->wbuf_freelist->len = 0;
2126 ret->wbuf_freelist->head = NULL;
2128 #ifndef OPENSSL_NO_ENGINE
2129 ret->client_cert_engine = NULL;
2130 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2131 #define eng_strx(x) #x
2132 #define eng_str(x) eng_strx(x)
2133 /* Use specific client engine automatically... ignore errors */
2136 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2140 ENGINE_load_builtin_engines();
2141 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2143 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
2148 /* Default is to connect to non-RI servers. When RI is more widely
2149 * deployed might change this.
2151 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
2155 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
2157 if (ret != NULL) SSL_CTX_free(ret);
2162 static void SSL_COMP_free(SSL_COMP *comp)
2163 { OPENSSL_free(comp); }
2166 #ifndef OPENSSL_NO_BUF_FREELISTS
2168 ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
2170 SSL3_BUF_FREELIST_ENTRY *ent, *next;
2171 for (ent = list->head; ent; ent = next)
2180 void SSL_CTX_free(SSL_CTX *a)
2184 if (a == NULL) return;
2186 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
2188 REF_PRINT("SSL_CTX",a);
2194 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
2200 X509_VERIFY_PARAM_free(a->param);
2203 * Free internal session cache. However: the remove_cb() may reference
2204 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2205 * after the sessions were flushed.
2206 * As the ex_data handling routines might also touch the session cache,
2207 * the most secure solution seems to be: empty (flush) the cache, then
2208 * free ex_data, then finally free the cache.
2209 * (See ticket [openssl.org #212].)
2211 if (a->sessions != NULL)
2212 SSL_CTX_flush_sessions(a,0);
2214 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
2216 if (a->sessions != NULL)
2217 lh_SSL_SESSION_free(a->sessions);
2219 if (a->cert_store != NULL)
2220 X509_STORE_free(a->cert_store);
2221 if (a->cipher_list != NULL)
2222 sk_SSL_CIPHER_free(a->cipher_list);
2223 if (a->cipher_list_by_id != NULL)
2224 sk_SSL_CIPHER_free(a->cipher_list_by_id);
2225 if (a->cert != NULL)
2226 ssl_cert_free(a->cert);
2227 if (a->client_CA != NULL)
2228 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
2229 if (a->extra_certs != NULL)
2230 sk_X509_pop_free(a->extra_certs,X509_free);
2231 #if 0 /* This should never be done, since it removes a global database */
2232 if (a->comp_methods != NULL)
2233 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
2235 a->comp_methods = NULL;
2238 if (a->srtp_profiles)
2239 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
2241 #ifndef OPENSSL_NO_PSK
2242 if (a->psk_identity_hint)
2243 OPENSSL_free(a->psk_identity_hint);
2245 #ifndef OPENSSL_NO_SRP
2246 SSL_CTX_SRP_CTX_free(a);
2248 #ifndef OPENSSL_NO_TLSEXT
2249 OPENSSL_free(a->custom_cli_ext_records);
2250 OPENSSL_free(a->custom_srv_ext_records);
2251 OPENSSL_free(a->cli_supp_data_records);
2252 OPENSSL_free(a->srv_supp_data_records);
2254 #ifndef OPENSSL_NO_ENGINE
2255 if (a->client_cert_engine)
2256 ENGINE_finish(a->client_cert_engine);
2259 #ifndef OPENSSL_NO_BUF_FREELISTS
2260 if (a->wbuf_freelist)
2261 ssl_buf_freelist_free(a->wbuf_freelist);
2262 if (a->rbuf_freelist)
2263 ssl_buf_freelist_free(a->rbuf_freelist);
2265 #ifndef OPENSSL_NO_TLSEXT
2266 # ifndef OPENSSL_NO_EC
2267 if (a->tlsext_ecpointformatlist)
2268 OPENSSL_free(a->tlsext_ecpointformatlist);
2269 if (a->tlsext_ellipticcurvelist)
2270 OPENSSL_free(a->tlsext_ellipticcurvelist);
2271 # endif /* OPENSSL_NO_EC */
2272 if (a->alpn_client_proto_list != NULL)
2273 OPENSSL_free(a->alpn_client_proto_list);
2279 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2281 ctx->default_passwd_callback=cb;
2284 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
2286 ctx->default_passwd_callback_userdata=u;
2289 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
2291 ctx->app_verify_callback=cb;
2292 ctx->app_verify_arg=arg;
2295 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
2297 ctx->verify_mode=mode;
2298 ctx->default_verify_callback=cb;
2301 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
2303 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2306 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb)(SSL *ssl, void *arg), void *arg)
2308 ssl_cert_set_cert_cb(c->cert, cb, arg);
2311 void SSL_set_cert_cb(SSL *s, int (*cb)(SSL *ssl, void *arg), void *arg)
2313 ssl_cert_set_cert_cb(s->cert, cb, arg);
2316 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
2319 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
2320 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
2321 int rsa_tmp_export,dh_tmp_export,kl;
2322 unsigned long mask_k,mask_a,emask_k,emask_a;
2323 #ifndef OPENSSL_NO_ECDSA
2324 int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
2326 #ifndef OPENSSL_NO_ECDH
2327 int have_ecdh_tmp, ecdh_ok;
2329 #ifndef OPENSSL_NO_EC
2331 EVP_PKEY *ecc_pkey = NULL;
2332 int signature_nid = 0, pk_nid = 0, md_nid = 0;
2334 if (c == NULL) return;
2336 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
2338 #ifndef OPENSSL_NO_RSA
2339 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2340 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
2341 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
2343 rsa_tmp=rsa_tmp_export=0;
2345 #ifndef OPENSSL_NO_DH
2346 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
2347 dh_tmp_export=(c->dh_tmp_cb != NULL ||
2348 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
2350 dh_tmp=dh_tmp_export=0;
2353 #ifndef OPENSSL_NO_ECDH
2354 have_ecdh_tmp=(c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
2356 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
2357 rsa_enc= cpk->valid_flags & CERT_PKEY_VALID;
2358 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2359 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2360 rsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2361 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2362 dsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2363 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
2364 dh_rsa= cpk->valid_flags & CERT_PKEY_VALID;
2365 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2366 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
2367 /* FIX THIS EAY EAY EAY */
2368 dh_dsa= cpk->valid_flags & CERT_PKEY_VALID;
2369 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2370 cpk= &(c->pkeys[SSL_PKEY_ECC]);
2371 #ifndef OPENSSL_NO_EC
2372 have_ecc_cert= cpk->valid_flags & CERT_PKEY_VALID;
2382 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2383 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
2384 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
2387 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2388 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2389 mask_k |= SSL_kGOST;
2390 mask_a |= SSL_aGOST01;
2392 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2393 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2394 mask_k |= SSL_kGOST;
2395 mask_a |= SSL_aGOST94;
2398 if (rsa_enc || (rsa_tmp && rsa_sign))
2400 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2404 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2405 if ( (dh_tmp || dh_rsa || dh_dsa) &&
2406 (rsa_enc || rsa_sign || dsa_sign))
2408 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
2409 (rsa_enc || rsa_sign || dsa_sign))
2419 if (dh_rsa) mask_k|=SSL_kDHr;
2420 if (dh_rsa_export) emask_k|=SSL_kDHr;
2422 if (dh_dsa) mask_k|=SSL_kDHd;
2423 if (dh_dsa_export) emask_k|=SSL_kDHd;
2425 if (emask_k & (SSL_kDHr|SSL_kDHd))
2428 if (rsa_enc || rsa_sign)
2443 #ifndef OPENSSL_NO_KRB5
2450 /* An ECC certificate may be usable for ECDH and/or
2451 * ECDSA cipher suites depending on the key usage extension.
2453 #ifndef OPENSSL_NO_EC
2456 cpk = &c->pkeys[SSL_PKEY_ECC];
2458 /* This call populates extension flags (ex_flags) */
2459 X509_check_purpose(x, -1, 0);
2460 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2461 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2462 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2463 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2464 if (!(cpk->valid_flags & CERT_PKEY_SIGN))
2466 ecc_pkey = X509_get_pubkey(x);
2467 ecc_pkey_size = (ecc_pkey != NULL) ?
2468 EVP_PKEY_bits(ecc_pkey) : 0;
2469 EVP_PKEY_free(ecc_pkey);
2470 if ((x->sig_alg) && (x->sig_alg->algorithm))
2472 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2473 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2475 #ifndef OPENSSL_NO_ECDH
2479 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa)
2483 if (ecc_pkey_size <= 163)
2485 emask_k|=SSL_kECDHr;
2490 if (pk_nid == NID_X9_62_id_ecPublicKey)
2494 if (ecc_pkey_size <= 163)
2496 emask_k|=SSL_kECDHe;
2502 #ifndef OPENSSL_NO_ECDSA
2506 emask_a|=SSL_aECDSA;
2512 #ifndef OPENSSL_NO_ECDH
2516 emask_k|=SSL_kEECDH;
2520 #ifndef OPENSSL_NO_PSK
2523 emask_k |= SSL_kPSK;
2524 emask_a |= SSL_aPSK;
2529 c->export_mask_k=emask_k;
2530 c->export_mask_a=emask_a;
2534 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2535 #define ku_reject(x, usage) \
2536 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2538 #ifndef OPENSSL_NO_EC
2540 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2542 unsigned long alg_k, alg_a;
2543 EVP_PKEY *pkey = NULL;
2545 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2546 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2548 alg_k = cs->algorithm_mkey;
2549 alg_a = cs->algorithm_auth;
2551 if (SSL_C_IS_EXPORT(cs))
2553 /* ECDH key length in export ciphers must be <= 163 bits */
2554 pkey = X509_get_pubkey(x);
2555 if (pkey == NULL) return 0;
2556 keysize = EVP_PKEY_bits(pkey);
2557 EVP_PKEY_free(pkey);
2558 if (keysize > 163) return 0;
2561 /* This call populates the ex_flags field correctly */
2562 X509_check_purpose(x, -1, 0);
2563 if ((x->sig_alg) && (x->sig_alg->algorithm))
2565 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2566 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2568 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
2570 /* key usage, if present, must allow key agreement */
2571 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
2573 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2576 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION)
2578 /* signature alg must be ECDSA */
2579 if (pk_nid != NID_X9_62_id_ecPublicKey)
2581 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2585 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION)
2587 /* signature alg must be RSA */
2589 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa)
2591 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2596 if (alg_a & SSL_aECDSA)
2598 /* key usage, if present, must allow signing */
2599 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
2601 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2606 return 1; /* all checks are ok */
2611 static int ssl_get_server_cert_index(const SSL *s)
2614 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2615 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2616 idx = SSL_PKEY_RSA_SIGN;
2618 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX,ERR_R_INTERNAL_ERROR);
2622 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s)
2628 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2630 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2631 /* Broken protocol test: return last used certificate: which may
2632 * mismatch the one expected.
2634 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2638 i = ssl_get_server_cert_index(s);
2640 /* This may or may not be an error. */
2645 return &c->pkeys[i];
2648 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher, const EVP_MD **pmd)
2650 unsigned long alg_a;
2654 alg_a = cipher->algorithm_auth;
2657 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2658 /* Broken protocol test: use last key: which may
2659 * mismatch the one expected.
2661 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2662 idx = c->key - c->pkeys;
2666 if ((alg_a & SSL_aDSS) &&
2667 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2668 idx = SSL_PKEY_DSA_SIGN;
2669 else if (alg_a & SSL_aRSA)
2671 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2672 idx = SSL_PKEY_RSA_SIGN;
2673 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2674 idx = SSL_PKEY_RSA_ENC;
2676 else if ((alg_a & SSL_aECDSA) &&
2677 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2681 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2685 *pmd = c->pkeys[idx].digest;
2686 return c->pkeys[idx].privatekey;
2689 #ifndef OPENSSL_NO_TLSEXT
2690 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2691 size_t *serverinfo_length)
2695 *serverinfo_length = 0;
2698 i = ssl_get_server_cert_index(s);
2702 if (c->pkeys[i].serverinfo == NULL)
2705 *serverinfo = c->pkeys[i].serverinfo;
2706 *serverinfo_length = c->pkeys[i].serverinfo_length;
2711 void ssl_update_cache(SSL *s,int mode)
2715 /* If the session_id_length is 0, we are not supposed to cache it,
2716 * and it would be rather hard to do anyway :-) */
2717 if (s->session->session_id_length == 0) return;
2719 i=s->session_ctx->session_cache_mode;
2720 if ((i & mode) && (!s->hit)
2721 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2722 || SSL_CTX_add_session(s->session_ctx,s->session))
2723 && (s->session_ctx->new_session_cb != NULL))
2725 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2726 if (!s->session_ctx->new_session_cb(s,s->session))
2727 SSL_SESSION_free(s->session);
2730 /* auto flush every 255 connections */
2731 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2732 ((i & mode) == mode))
2734 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2735 ?s->session_ctx->stats.sess_connect_good
2736 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2738 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2743 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2748 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2753 if (s->method != meth)
2755 if (s->handshake_func != NULL)
2756 conn=(s->handshake_func == s->method->ssl_connect);
2758 if (s->method->version == meth->version)
2762 s->method->ssl_free(s);
2764 ret=s->method->ssl_new(s);
2768 s->handshake_func=meth->ssl_connect;
2770 s->handshake_func=meth->ssl_accept;
2775 int SSL_get_error(const SSL *s,int i)
2781 if (i > 0) return(SSL_ERROR_NONE);
2783 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2784 * etc, where we do encode the error */
2785 if ((l=ERR_peek_error()) != 0)
2787 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2788 return(SSL_ERROR_SYSCALL);
2790 return(SSL_ERROR_SSL);
2793 if ((i < 0) && SSL_want_read(s))
2795 bio=SSL_get_rbio(s);
2796 if (BIO_should_read(bio))
2797 return(SSL_ERROR_WANT_READ);
2798 else if (BIO_should_write(bio))
2799 /* This one doesn't make too much sense ... We never try
2800 * to write to the rbio, and an application program where
2801 * rbio and wbio are separate couldn't even know what it
2803 * However if we ever set s->rwstate incorrectly
2804 * (so that we have SSL_want_read(s) instead of
2805 * SSL_want_write(s)) and rbio and wbio *are* the same,
2806 * this test works around that bug; so it might be safer
2808 return(SSL_ERROR_WANT_WRITE);
2809 else if (BIO_should_io_special(bio))
2811 reason=BIO_get_retry_reason(bio);
2812 if (reason == BIO_RR_CONNECT)
2813 return(SSL_ERROR_WANT_CONNECT);
2814 else if (reason == BIO_RR_ACCEPT)
2815 return(SSL_ERROR_WANT_ACCEPT);
2817 return(SSL_ERROR_SYSCALL); /* unknown */
2821 if ((i < 0) && SSL_want_write(s))
2823 bio=SSL_get_wbio(s);
2824 if (BIO_should_write(bio))
2825 return(SSL_ERROR_WANT_WRITE);
2826 else if (BIO_should_read(bio))
2827 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2828 return(SSL_ERROR_WANT_READ);
2829 else if (BIO_should_io_special(bio))
2831 reason=BIO_get_retry_reason(bio);
2832 if (reason == BIO_RR_CONNECT)
2833 return(SSL_ERROR_WANT_CONNECT);
2834 else if (reason == BIO_RR_ACCEPT)
2835 return(SSL_ERROR_WANT_ACCEPT);
2837 return(SSL_ERROR_SYSCALL);
2840 if ((i < 0) && SSL_want_x509_lookup(s))
2842 return(SSL_ERROR_WANT_X509_LOOKUP);
2847 if (s->version == SSL2_VERSION)
2849 /* assume it is the socket being closed */
2850 return(SSL_ERROR_ZERO_RETURN);
2854 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2855 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2856 return(SSL_ERROR_ZERO_RETURN);
2859 return(SSL_ERROR_SYSCALL);
2862 int SSL_do_handshake(SSL *s)
2866 if (s->handshake_func == NULL)
2868 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2872 s->method->ssl_renegotiate_check(s);
2874 if (SSL_in_init(s) || SSL_in_before(s))
2876 ret=s->handshake_func(s);
2881 /* For the next 2 functions, SSL_clear() sets shutdown and so
2882 * one of these calls will reset it */
2883 void SSL_set_accept_state(SSL *s)
2887 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2888 s->handshake_func=s->method->ssl_accept;
2889 /* clear the current cipher */
2890 ssl_clear_cipher_ctx(s);
2891 ssl_clear_hash_ctx(&s->read_hash);
2892 ssl_clear_hash_ctx(&s->write_hash);
2895 void SSL_set_connect_state(SSL *s)
2899 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2900 s->handshake_func=s->method->ssl_connect;
2901 /* clear the current cipher */
2902 ssl_clear_cipher_ctx(s);
2903 ssl_clear_hash_ctx(&s->read_hash);
2904 ssl_clear_hash_ctx(&s->write_hash);
2907 int ssl_undefined_function(SSL *s)
2909 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2913 int ssl_undefined_void_function(void)
2915 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2919 int ssl_undefined_const_function(const SSL *s)
2921 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2925 SSL_METHOD *ssl_bad_method(int ver)
2927 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2931 const char *SSL_get_version(const SSL *s)
2933 if (s->version == TLS1_2_VERSION)
2935 else if (s->version == TLS1_1_VERSION)
2937 else if (s->version == TLS1_VERSION)
2939 else if (s->version == SSL3_VERSION)
2941 else if (s->version == SSL2_VERSION)
2947 SSL *SSL_dup(SSL *s)
2949 STACK_OF(X509_NAME) *sk;
2954 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2957 ret->version = s->version;
2958 ret->type = s->type;
2959 ret->method = s->method;
2961 if (s->session != NULL)
2963 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2964 SSL_copy_session_id(ret,s);
2968 /* No session has been established yet, so we have to expect
2969 * that s->cert or ret->cert will be changed later --
2970 * they should not both point to the same object,
2971 * and thus we can't use SSL_copy_session_id. */
2973 ret->method->ssl_free(ret);
2974 ret->method = s->method;
2975 ret->method->ssl_new(ret);
2977 if (s->cert != NULL)
2979 if (ret->cert != NULL)
2981 ssl_cert_free(ret->cert);
2983 ret->cert = ssl_cert_dup(s->cert);
2984 if (ret->cert == NULL)
2988 SSL_set_session_id_context(ret,
2989 s->sid_ctx, s->sid_ctx_length);
2992 ret->options=s->options;
2994 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2995 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2996 ret->msg_callback = s->msg_callback;
2997 ret->msg_callback_arg = s->msg_callback_arg;
2998 SSL_set_verify(ret,SSL_get_verify_mode(s),
2999 SSL_get_verify_callback(s));
3000 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
3001 ret->generate_session_id = s->generate_session_id;
3003 SSL_set_info_callback(ret,SSL_get_info_callback(s));
3005 ret->debug=s->debug;
3007 /* copy app data, a little dangerous perhaps */
3008 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
3011 /* setup rbio, and wbio */
3012 if (s->rbio != NULL)
3014 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
3017 if (s->wbio != NULL)
3019 if (s->wbio != s->rbio)
3021 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
3025 ret->wbio=ret->rbio;
3027 ret->rwstate = s->rwstate;
3028 ret->in_handshake = s->in_handshake;
3029 ret->handshake_func = s->handshake_func;
3030 ret->server = s->server;
3031 ret->renegotiate = s->renegotiate;
3032 ret->new_session = s->new_session;
3033 ret->quiet_shutdown = s->quiet_shutdown;
3034 ret->shutdown=s->shutdown;
3035 ret->state=s->state; /* SSL_dup does not really work at any state, though */
3036 ret->rstate=s->rstate;
3037 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
3040 X509_VERIFY_PARAM_inherit(ret->param, s->param);
3042 /* dup the cipher_list and cipher_list_by_id stacks */
3043 if (s->cipher_list != NULL)
3045 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
3048 if (s->cipher_list_by_id != NULL)
3049 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
3053 /* Dup the client_CA list */
3054 if (s->client_CA != NULL)
3056 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
3058 for (i=0; i<sk_X509_NAME_num(sk); i++)
3060 xn=sk_X509_NAME_value(sk,i);
3061 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
3072 if (ret != NULL) SSL_free(ret);
3078 void ssl_clear_cipher_ctx(SSL *s)
3080 if (s->enc_read_ctx != NULL)
3082 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
3083 OPENSSL_free(s->enc_read_ctx);
3084 s->enc_read_ctx=NULL;
3086 if (s->enc_write_ctx != NULL)
3088 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
3089 OPENSSL_free(s->enc_write_ctx);
3090 s->enc_write_ctx=NULL;
3092 #ifndef OPENSSL_NO_COMP
3093 if (s->expand != NULL)
3095 COMP_CTX_free(s->expand);
3098 if (s->compress != NULL)
3100 COMP_CTX_free(s->compress);
3106 /* Fix this function so that it takes an optional type parameter */
3107 X509 *SSL_get_certificate(const SSL *s)
3109 if (s->cert != NULL)
3110 return(s->cert->key->x509);
3115 /* Fix this function so that it takes an optional type parameter */
3116 EVP_PKEY *SSL_get_privatekey(SSL *s)
3118 if (s->cert != NULL)
3119 return(s->cert->key->privatekey);
3124 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
3126 if ((s->session != NULL) && (s->session->cipher != NULL))
3127 return(s->session->cipher);
3130 #ifdef OPENSSL_NO_COMP
3131 const void *SSL_get_current_compression(SSL *s)
3135 const void *SSL_get_current_expansion(SSL *s)
3141 const COMP_METHOD *SSL_get_current_compression(SSL *s)
3143 if (s->compress != NULL)
3144 return(s->compress->meth);
3148 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
3150 if (s->expand != NULL)
3151 return(s->expand->meth);
3156 int ssl_init_wbio_buffer(SSL *s,int push)
3160 if (s->bbio == NULL)
3162 bbio=BIO_new(BIO_f_buffer());
3163 if (bbio == NULL) return(0);
3169 if (s->bbio == s->wbio)
3170 s->wbio=BIO_pop(s->wbio);
3172 (void)BIO_reset(bbio);
3173 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
3174 if (!BIO_set_read_buffer_size(bbio,1))
3176 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
3181 if (s->wbio != bbio)
3182 s->wbio=BIO_push(bbio,s->wbio);
3186 if (s->wbio == bbio)
3187 s->wbio=BIO_pop(bbio);
3192 void ssl_free_wbio_buffer(SSL *s)
3194 if (s->bbio == NULL) return;
3196 if (s->bbio == s->wbio)
3198 /* remove buffering */
3199 s->wbio=BIO_pop(s->wbio);
3200 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
3201 assert(s->wbio != NULL);
3208 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
3210 ctx->quiet_shutdown=mode;
3213 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
3215 return(ctx->quiet_shutdown);
3218 void SSL_set_quiet_shutdown(SSL *s,int mode)
3220 s->quiet_shutdown=mode;
3223 int SSL_get_quiet_shutdown(const SSL *s)
3225 return(s->quiet_shutdown);
3228 void SSL_set_shutdown(SSL *s,int mode)
3233 int SSL_get_shutdown(const SSL *s)
3235 return(s->shutdown);
3238 int SSL_version(const SSL *s)
3243 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
3248 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
3250 if (ssl->ctx == ctx)
3252 #ifndef OPENSSL_NO_TLSEXT
3254 ctx = ssl->initial_ctx;
3256 if (ssl->cert != NULL)
3257 ssl_cert_free(ssl->cert);
3258 ssl->cert = ssl_cert_dup(ctx->cert);
3259 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
3260 if (ssl->ctx != NULL)
3261 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3266 #ifndef OPENSSL_NO_STDIO
3267 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3269 return(X509_STORE_set_default_paths(ctx->cert_store));
3272 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3275 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
3279 void SSL_set_info_callback(SSL *ssl,
3280 void (*cb)(const SSL *ssl,int type,int val))
3282 ssl->info_callback=cb;
3285 /* One compiler (Diab DCC) doesn't like argument names in returned
3286 function pointer. */
3287 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
3289 return ssl->info_callback;
3292 int SSL_state(const SSL *ssl)
3297 void SSL_set_state(SSL *ssl, int state)
3302 void SSL_set_verify_result(SSL *ssl,long arg)
3304 ssl->verify_result=arg;
3307 long SSL_get_verify_result(const SSL *ssl)
3309 return(ssl->verify_result);
3312 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3313 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3315 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
3316 new_func, dup_func, free_func);
3319 int SSL_set_ex_data(SSL *s,int idx,void *arg)
3321 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3324 void *SSL_get_ex_data(const SSL *s,int idx)
3326 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3329 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3330 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3332 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3333 new_func, dup_func, free_func);
3336 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
3338 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3341 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
3343 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3351 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3353 return(ctx->cert_store);
3356 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
3358 if (ctx->cert_store != NULL)
3359 X509_STORE_free(ctx->cert_store);
3360 ctx->cert_store=store;
3363 int SSL_want(const SSL *s)
3369 * \brief Set the callback for generating temporary RSA keys.
3370 * \param ctx the SSL context.
3371 * \param cb the callback
3374 #ifndef OPENSSL_NO_RSA
3375 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
3379 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3382 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
3386 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3392 * \brief The RSA temporary key callback function.
3393 * \param ssl the SSL session.
3394 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3395 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3396 * of the required key in bits.
3397 * \return the temporary RSA key.
3398 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3401 RSA *cb(SSL *ssl,int is_export,int keylength)
3406 * \brief Set the callback for generating temporary DH keys.
3407 * \param ctx the SSL context.
3408 * \param dh the callback
3411 #ifndef OPENSSL_NO_DH
3412 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
3415 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3418 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
3421 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3425 #ifndef OPENSSL_NO_ECDH
3426 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3429 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3432 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3435 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3439 #ifndef OPENSSL_NO_PSK
3440 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3442 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3444 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3447 if (ctx->psk_identity_hint != NULL)
3448 OPENSSL_free(ctx->psk_identity_hint);
3449 if (identity_hint != NULL)
3451 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3452 if (ctx->psk_identity_hint == NULL)
3456 ctx->psk_identity_hint = NULL;
3460 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3465 if (s->session == NULL)
3466 return 1; /* session not created yet, ignored */
3468 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3470 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3473 if (s->session->psk_identity_hint != NULL)
3474 OPENSSL_free(s->session->psk_identity_hint);
3475 if (identity_hint != NULL)
3477 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3478 if (s->session->psk_identity_hint == NULL)
3482 s->session->psk_identity_hint = NULL;
3486 const char *SSL_get_psk_identity_hint(const SSL *s)
3488 if (s == NULL || s->session == NULL)
3490 return(s->session->psk_identity_hint);
3493 const char *SSL_get_psk_identity(const SSL *s)
3495 if (s == NULL || s->session == NULL)
3497 return(s->session->psk_identity);
3500 void SSL_set_psk_client_callback(SSL *s,
3501 unsigned int (*cb)(SSL *ssl, const char *hint,
3502 char *identity, unsigned int max_identity_len, unsigned char *psk,
3503 unsigned int max_psk_len))
3505 s->psk_client_callback = cb;
3508 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3509 unsigned int (*cb)(SSL *ssl, const char *hint,
3510 char *identity, unsigned int max_identity_len, unsigned char *psk,
3511 unsigned int max_psk_len))
3513 ctx->psk_client_callback = cb;
3516 void SSL_set_psk_server_callback(SSL *s,
3517 unsigned int (*cb)(SSL *ssl, const char *identity,
3518 unsigned char *psk, unsigned int max_psk_len))
3520 s->psk_server_callback = cb;
3523 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3524 unsigned int (*cb)(SSL *ssl, const char *identity,
3525 unsigned char *psk, unsigned int max_psk_len))
3527 ctx->psk_server_callback = cb;
3531 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))
3533 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3535 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))
3537 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3540 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3541 int (*cb)(SSL *ssl, int is_forward_secure))
3543 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3544 (void (*)(void))cb);
3546 void SSL_set_not_resumable_session_callback(SSL *ssl,
3547 int (*cb)(SSL *ssl, int is_forward_secure))
3549 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3550 (void (*)(void))cb);
3553 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3554 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
3555 * any. If EVP_MD pointer is passed, initializes ctx with this md
3556 * Returns newly allocated ctx;
3559 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
3561 ssl_clear_hash_ctx(hash);
3562 *hash = EVP_MD_CTX_create();
3563 if (md) EVP_DigestInit_ex(*hash,md,NULL);
3566 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3569 if (*hash) EVP_MD_CTX_destroy(*hash);
3573 void SSL_set_debug(SSL *s, int debug)
3578 int SSL_cache_hit(SSL *s)
3583 int SSL_is_server(SSL *s)
3588 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3589 #include "../crypto/bio/bss_file.c"
3592 IMPLEMENT_STACK_OF(SSL_CIPHER)
3593 IMPLEMENT_STACK_OF(SSL_COMP)
3594 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,