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 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
544 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
549 void SSL_certs_clear(SSL *s)
551 ssl_cert_clear_certs(s->cert);
554 void SSL_free(SSL *s)
561 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
569 fprintf(stderr,"SSL_free, bad reference count\n");
575 X509_VERIFY_PARAM_free(s->param);
577 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
581 /* If the buffering BIO is in place, pop it off */
582 if (s->bbio == s->wbio)
584 s->wbio=BIO_pop(s->wbio);
590 BIO_free_all(s->rbio);
591 if ((s->wbio != NULL) && (s->wbio != s->rbio))
592 BIO_free_all(s->wbio);
594 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
596 /* add extra stuff */
597 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
598 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
600 /* Make the next call work :-) */
601 if (s->session != NULL)
603 ssl_clear_bad_session(s);
604 SSL_SESSION_free(s->session);
607 ssl_clear_cipher_ctx(s);
608 ssl_clear_hash_ctx(&s->read_hash);
609 ssl_clear_hash_ctx(&s->write_hash);
611 if (s->cert != NULL) ssl_cert_free(s->cert);
612 /* Free up if allocated */
614 #ifndef OPENSSL_NO_TLSEXT
615 if (s->tlsext_hostname)
616 OPENSSL_free(s->tlsext_hostname);
617 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx);
618 #ifndef OPENSSL_NO_EC
619 if (s->tlsext_ecpointformatlist) OPENSSL_free(s->tlsext_ecpointformatlist);
620 if (s->tlsext_ellipticcurvelist) OPENSSL_free(s->tlsext_ellipticcurvelist);
621 #endif /* OPENSSL_NO_EC */
622 if (s->tlsext_opaque_prf_input) OPENSSL_free(s->tlsext_opaque_prf_input);
623 if (s->tlsext_ocsp_exts)
624 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
625 X509_EXTENSION_free);
626 if (s->tlsext_ocsp_ids)
627 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
628 if (s->tlsext_ocsp_resp)
629 OPENSSL_free(s->tlsext_ocsp_resp);
630 if (s->alpn_client_proto_list)
631 OPENSSL_free(s->alpn_client_proto_list);
634 if (s->client_CA != NULL)
635 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
637 if (s->method != NULL) s->method->ssl_free(s);
639 if (s->ctx) SSL_CTX_free(s->ctx);
641 #ifndef OPENSSL_NO_KRB5
642 if (s->kssl_ctx != NULL)
643 kssl_ctx_free(s->kssl_ctx);
644 #endif /* OPENSSL_NO_KRB5 */
646 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
647 if (s->next_proto_negotiated)
648 OPENSSL_free(s->next_proto_negotiated);
651 if (s->srtp_profiles)
652 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
657 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
659 /* If the output buffering BIO is still in place, remove it
663 if (s->wbio == s->bbio)
665 s->wbio=s->wbio->next_bio;
666 s->bbio->next_bio=NULL;
669 if ((s->rbio != NULL) && (s->rbio != rbio))
670 BIO_free_all(s->rbio);
671 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
672 BIO_free_all(s->wbio);
677 BIO *SSL_get_rbio(const SSL *s)
680 BIO *SSL_get_wbio(const SSL *s)
683 int SSL_get_fd(const SSL *s)
685 return(SSL_get_rfd(s));
688 int SSL_get_rfd(const SSL *s)
694 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
700 int SSL_get_wfd(const SSL *s)
706 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
712 #ifndef OPENSSL_NO_SOCK
713 int SSL_set_fd(SSL *s,int fd)
718 bio=BIO_new(BIO_s_socket());
722 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
725 BIO_set_fd(bio,fd,BIO_NOCLOSE);
726 SSL_set_bio(s,bio,bio);
732 int SSL_set_wfd(SSL *s,int fd)
737 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
738 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
740 bio=BIO_new(BIO_s_socket());
743 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
744 BIO_set_fd(bio,fd,BIO_NOCLOSE);
745 SSL_set_bio(s,SSL_get_rbio(s),bio);
748 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
754 int SSL_set_rfd(SSL *s,int fd)
759 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
760 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
762 bio=BIO_new(BIO_s_socket());
766 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
769 BIO_set_fd(bio,fd,BIO_NOCLOSE);
770 SSL_set_bio(s,bio,SSL_get_wbio(s));
773 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
781 /* return length of latest Finished message we sent, copy to 'buf' */
782 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
788 ret = s->s3->tmp.finish_md_len;
791 memcpy(buf, s->s3->tmp.finish_md, count);
796 /* return length of latest Finished message we expected, copy to 'buf' */
797 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
803 ret = s->s3->tmp.peer_finish_md_len;
806 memcpy(buf, s->s3->tmp.peer_finish_md, count);
812 int SSL_get_verify_mode(const SSL *s)
814 return(s->verify_mode);
817 int SSL_get_verify_depth(const SSL *s)
819 return X509_VERIFY_PARAM_get_depth(s->param);
822 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
824 return(s->verify_callback);
827 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
829 return(ctx->verify_mode);
832 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
834 return X509_VERIFY_PARAM_get_depth(ctx->param);
837 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
839 return(ctx->default_verify_callback);
842 void SSL_set_verify(SSL *s,int mode,
843 int (*callback)(int ok,X509_STORE_CTX *ctx))
846 if (callback != NULL)
847 s->verify_callback=callback;
850 void SSL_set_verify_depth(SSL *s,int depth)
852 X509_VERIFY_PARAM_set_depth(s->param, depth);
855 void SSL_set_read_ahead(SSL *s,int yes)
860 int SSL_get_read_ahead(const SSL *s)
862 return(s->read_ahead);
865 int SSL_pending(const SSL *s)
867 /* SSL_pending cannot work properly if read-ahead is enabled
868 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
869 * and it is impossible to fix since SSL_pending cannot report
870 * errors that may be observed while scanning the new data.
871 * (Note that SSL_pending() is often used as a boolean value,
872 * so we'd better not return -1.)
874 return(s->method->ssl_pending(s));
877 X509 *SSL_get_peer_certificate(const SSL *s)
881 if ((s == NULL) || (s->session == NULL))
886 if (r == NULL) return(r);
888 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
893 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
897 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
900 r=s->session->sess_cert->cert_chain;
902 /* If we are a client, cert_chain includes the peer's own
903 * certificate; if we are a server, it does not. */
908 /* Now in theory, since the calling process own 't' it should be safe to
909 * modify. We need to be able to read f without being hassled */
910 void SSL_copy_session_id(SSL *t,const SSL *f)
914 /* Do we need to to SSL locking? */
915 SSL_set_session(t,SSL_get_session(f));
917 /* what if we are setup as SSLv2 but want to talk SSLv3 or
919 if (t->method != f->method)
921 t->method->ssl_free(t); /* cleanup current */
922 t->method=f->method; /* change method */
923 t->method->ssl_new(t); /* setup new */
929 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
934 if (tmp != NULL) ssl_cert_free(tmp);
935 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
938 /* Fix this so it checks all the valid key/cert options */
939 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
941 if ( (ctx == NULL) ||
942 (ctx->cert == NULL) ||
943 (ctx->cert->key->x509 == NULL))
945 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
948 if (ctx->cert->key->privatekey == NULL)
950 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
953 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
956 /* Fix this function so that it takes an optional type parameter */
957 int SSL_check_private_key(const SSL *ssl)
961 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
964 if (ssl->cert == NULL)
966 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
969 if (ssl->cert->key->x509 == NULL)
971 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
974 if (ssl->cert->key->privatekey == NULL)
976 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
979 return(X509_check_private_key(ssl->cert->key->x509,
980 ssl->cert->key->privatekey));
983 int SSL_accept(SSL *s)
985 if (s->handshake_func == 0)
986 /* Not properly initialized yet */
987 SSL_set_accept_state(s);
989 return(s->method->ssl_accept(s));
992 int SSL_connect(SSL *s)
994 if (s->handshake_func == 0)
995 /* Not properly initialized yet */
996 SSL_set_connect_state(s);
998 return(s->method->ssl_connect(s));
1001 long SSL_get_default_timeout(const SSL *s)
1003 return(s->method->get_timeout());
1006 int SSL_read(SSL *s,void *buf,int num)
1008 if (s->handshake_func == 0)
1010 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
1014 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
1016 s->rwstate=SSL_NOTHING;
1019 return(s->method->ssl_read(s,buf,num));
1022 int SSL_peek(SSL *s,void *buf,int num)
1024 if (s->handshake_func == 0)
1026 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
1030 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
1034 return(s->method->ssl_peek(s,buf,num));
1037 int SSL_write(SSL *s,const void *buf,int num)
1039 if (s->handshake_func == 0)
1041 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
1045 if (s->shutdown & SSL_SENT_SHUTDOWN)
1047 s->rwstate=SSL_NOTHING;
1048 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
1051 return(s->method->ssl_write(s,buf,num));
1054 int SSL_shutdown(SSL *s)
1056 /* Note that this function behaves differently from what one might
1057 * expect. Return values are 0 for no success (yet),
1058 * 1 for success; but calling it once is usually not enough,
1059 * even if blocking I/O is used (see ssl3_shutdown).
1062 if (s->handshake_func == 0)
1064 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1068 if ((s != NULL) && !SSL_in_init(s))
1069 return(s->method->ssl_shutdown(s));
1074 int SSL_renegotiate(SSL *s)
1076 if (s->renegotiate == 0)
1081 return(s->method->ssl_renegotiate(s));
1084 int SSL_renegotiate_abbreviated(SSL *s)
1086 if (s->renegotiate == 0)
1091 return(s->method->ssl_renegotiate(s));
1094 int SSL_renegotiate_pending(SSL *s)
1096 /* becomes true when negotiation is requested;
1097 * false again once a handshake has finished */
1098 return (s->renegotiate != 0);
1101 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
1107 case SSL_CTRL_GET_READ_AHEAD:
1108 return(s->read_ahead);
1109 case SSL_CTRL_SET_READ_AHEAD:
1114 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1115 s->msg_callback_arg = parg;
1118 case SSL_CTRL_OPTIONS:
1119 return(s->options|=larg);
1120 case SSL_CTRL_CLEAR_OPTIONS:
1121 return(s->options&=~larg);
1123 return(s->mode|=larg);
1124 case SSL_CTRL_CLEAR_MODE:
1125 return(s->mode &=~larg);
1126 case SSL_CTRL_GET_MAX_CERT_LIST:
1127 return(s->max_cert_list);
1128 case SSL_CTRL_SET_MAX_CERT_LIST:
1130 s->max_cert_list=larg;
1132 case SSL_CTRL_SET_MTU:
1133 #ifndef OPENSSL_NO_DTLS1
1134 if (larg < (long)dtls1_min_mtu())
1144 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1145 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1147 s->max_send_fragment = larg;
1149 case SSL_CTRL_GET_RI_SUPPORT:
1151 return s->s3->send_connection_binding;
1153 case SSL_CTRL_CERT_FLAGS:
1154 return(s->cert->cert_flags|=larg);
1155 case SSL_CTRL_CLEAR_CERT_FLAGS:
1156 return(s->cert->cert_flags &=~larg);
1158 case SSL_CTRL_GET_RAW_CIPHERLIST:
1161 if (s->cert->ciphers_raw == NULL)
1163 *(unsigned char **)parg = s->cert->ciphers_raw;
1164 return (int)s->cert->ciphers_rawlen;
1167 return ssl_put_cipher_by_char(s,NULL,NULL);
1169 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1173 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1177 case SSL_CTRL_SET_MSG_CALLBACK:
1178 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1182 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1186 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1188 return ctx->sessions;
1191 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1194 /* For some cases with ctx == NULL perform syntax checks */
1199 #ifndef OPENSSL_NO_EC
1200 case SSL_CTRL_SET_CURVES_LIST:
1201 return tls1_set_curves_list(NULL, NULL, parg);
1203 case SSL_CTRL_SET_SIGALGS_LIST:
1204 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1205 return tls1_set_sigalgs_list(NULL, parg, 0);
1213 case SSL_CTRL_GET_READ_AHEAD:
1214 return(ctx->read_ahead);
1215 case SSL_CTRL_SET_READ_AHEAD:
1217 ctx->read_ahead=larg;
1220 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1221 ctx->msg_callback_arg = parg;
1224 case SSL_CTRL_GET_MAX_CERT_LIST:
1225 return(ctx->max_cert_list);
1226 case SSL_CTRL_SET_MAX_CERT_LIST:
1227 l=ctx->max_cert_list;
1228 ctx->max_cert_list=larg;
1231 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1232 l=ctx->session_cache_size;
1233 ctx->session_cache_size=larg;
1235 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1236 return(ctx->session_cache_size);
1237 case SSL_CTRL_SET_SESS_CACHE_MODE:
1238 l=ctx->session_cache_mode;
1239 ctx->session_cache_mode=larg;
1241 case SSL_CTRL_GET_SESS_CACHE_MODE:
1242 return(ctx->session_cache_mode);
1244 case SSL_CTRL_SESS_NUMBER:
1245 return(lh_SSL_SESSION_num_items(ctx->sessions));
1246 case SSL_CTRL_SESS_CONNECT:
1247 return(ctx->stats.sess_connect);
1248 case SSL_CTRL_SESS_CONNECT_GOOD:
1249 return(ctx->stats.sess_connect_good);
1250 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1251 return(ctx->stats.sess_connect_renegotiate);
1252 case SSL_CTRL_SESS_ACCEPT:
1253 return(ctx->stats.sess_accept);
1254 case SSL_CTRL_SESS_ACCEPT_GOOD:
1255 return(ctx->stats.sess_accept_good);
1256 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1257 return(ctx->stats.sess_accept_renegotiate);
1258 case SSL_CTRL_SESS_HIT:
1259 return(ctx->stats.sess_hit);
1260 case SSL_CTRL_SESS_CB_HIT:
1261 return(ctx->stats.sess_cb_hit);
1262 case SSL_CTRL_SESS_MISSES:
1263 return(ctx->stats.sess_miss);
1264 case SSL_CTRL_SESS_TIMEOUTS:
1265 return(ctx->stats.sess_timeout);
1266 case SSL_CTRL_SESS_CACHE_FULL:
1267 return(ctx->stats.sess_cache_full);
1268 case SSL_CTRL_OPTIONS:
1269 return(ctx->options|=larg);
1270 case SSL_CTRL_CLEAR_OPTIONS:
1271 return(ctx->options&=~larg);
1273 return(ctx->mode|=larg);
1274 case SSL_CTRL_CLEAR_MODE:
1275 return(ctx->mode&=~larg);
1276 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1277 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1279 ctx->max_send_fragment = larg;
1281 case SSL_CTRL_CERT_FLAGS:
1282 return(ctx->cert->cert_flags|=larg);
1283 case SSL_CTRL_CLEAR_CERT_FLAGS:
1284 return(ctx->cert->cert_flags &=~larg);
1286 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1290 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1294 case SSL_CTRL_SET_MSG_CALLBACK:
1295 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1299 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1303 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1311 return((l > 0)?1:-1);
1314 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1315 const SSL_CIPHER * const *bp)
1319 l=(*ap)->id-(*bp)->id;
1323 return((l > 0)?1:-1);
1326 /** return a STACK of the ciphers available for the SSL and in order of
1328 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1332 if (s->cipher_list != NULL)
1334 return(s->cipher_list);
1336 else if ((s->ctx != NULL) &&
1337 (s->ctx->cipher_list != NULL))
1339 return(s->ctx->cipher_list);
1345 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
1347 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
1349 ciphers = SSL_get_ciphers(s);
1352 ssl_set_client_disabled(s);
1353 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++)
1355 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
1356 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED))
1359 sk = sk_SSL_CIPHER_new_null();
1362 if (!sk_SSL_CIPHER_push(sk, c))
1364 sk_SSL_CIPHER_free(sk);
1372 /** return a STACK of the ciphers available for the SSL and in order of
1374 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1378 if (s->cipher_list_by_id != NULL)
1380 return(s->cipher_list_by_id);
1382 else if ((s->ctx != NULL) &&
1383 (s->ctx->cipher_list_by_id != NULL))
1385 return(s->ctx->cipher_list_by_id);
1391 /** The old interface to get the same thing as SSL_get_ciphers() */
1392 const char *SSL_get_cipher_list(const SSL *s,int n)
1395 STACK_OF(SSL_CIPHER) *sk;
1397 if (s == NULL) return(NULL);
1398 sk=SSL_get_ciphers(s);
1399 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1401 c=sk_SSL_CIPHER_value(sk,n);
1402 if (c == NULL) return(NULL);
1406 /** specify the ciphers to be used by default by the SSL_CTX */
1407 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1409 STACK_OF(SSL_CIPHER) *sk;
1411 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1412 &ctx->cipher_list_by_id,str, ctx->cert);
1413 /* ssl_create_cipher_list may return an empty stack if it
1414 * was unable to find a cipher matching the given rule string
1415 * (for example if the rule string specifies a cipher which
1416 * has been disabled). This is not an error as far as
1417 * ssl_create_cipher_list is concerned, and hence
1418 * ctx->cipher_list and ctx->cipher_list_by_id has been
1422 else if (sk_SSL_CIPHER_num(sk) == 0)
1424 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1430 /** specify the ciphers to be used by the SSL */
1431 int SSL_set_cipher_list(SSL *s,const char *str)
1433 STACK_OF(SSL_CIPHER) *sk;
1435 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1436 &s->cipher_list_by_id,str, s->cert);
1437 /* see comment in SSL_CTX_set_cipher_list */
1440 else if (sk_SSL_CIPHER_num(sk) == 0)
1442 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1448 /* works well for SSLv2, not so good for SSLv3 */
1449 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1452 STACK_OF(SSL_CIPHER) *sk;
1456 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1460 if (sk_SSL_CIPHER_num(sk) == 0)
1464 sk=s->session->ciphers;
1465 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1469 c=sk_SSL_CIPHER_value(sk,i);
1487 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1488 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1493 int no_scsv = s->renegotiate;
1494 /* Set disabled masks for this session */
1495 ssl_set_client_disabled(s);
1497 if (sk == NULL) return(0);
1500 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1502 c=sk_SSL_CIPHER_value(sk,i);
1503 /* Skip disabled ciphers */
1504 if (ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED))
1506 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1507 if (c->id == SSL3_CK_SCSV)
1515 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1518 /* If p == q, no ciphers and caller indicates an error. Otherwise
1519 * add SCSV if not renegotiating.
1521 if (p != q && !no_scsv)
1523 static SSL_CIPHER scsv =
1525 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1527 j = put_cb ? put_cb(&scsv,p) : ssl_put_cipher_by_char(s,&scsv,p);
1529 #ifdef OPENSSL_RI_DEBUG
1530 fprintf(stderr, "SCSV sent by client\n");
1537 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1538 STACK_OF(SSL_CIPHER) **skp)
1540 const SSL_CIPHER *c;
1541 STACK_OF(SSL_CIPHER) *sk;
1544 s->s3->send_connection_binding = 0;
1546 n=ssl_put_cipher_by_char(s,NULL,NULL);
1549 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1552 if ((skp == NULL) || (*skp == NULL))
1553 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1557 sk_SSL_CIPHER_zero(sk);
1560 if (s->cert->ciphers_raw)
1561 OPENSSL_free(s->cert->ciphers_raw);
1562 s->cert->ciphers_raw = BUF_memdup(p, num);
1563 if (s->cert->ciphers_raw == NULL)
1565 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1568 s->cert->ciphers_rawlen = (size_t)num;
1570 for (i=0; i<num; i+=n)
1572 /* Check for SCSV */
1573 if (s->s3 && (n != 3 || !p[0]) &&
1574 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1575 (p[n-1] == (SSL3_CK_SCSV & 0xff)))
1577 /* SCSV fatal if renegotiating */
1580 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1581 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1584 s->s3->send_connection_binding = 1;
1586 #ifdef OPENSSL_RI_DEBUG
1587 fprintf(stderr, "SCSV received by server\n");
1592 c=ssl_get_cipher_by_char(s,p);
1596 if (!sk_SSL_CIPHER_push(sk,c))
1598 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1608 if ((skp == NULL) || (*skp == NULL))
1609 sk_SSL_CIPHER_free(sk);
1614 #ifndef OPENSSL_NO_TLSEXT
1615 /** return a servername extension value if provided in Client Hello, or NULL.
1616 * So far, only host_name types are defined (RFC 3546).
1619 const char *SSL_get_servername(const SSL *s, const int type)
1621 if (type != TLSEXT_NAMETYPE_host_name)
1624 return s->session && !s->tlsext_hostname ?
1625 s->session->tlsext_hostname :
1629 int SSL_get_servername_type(const SSL *s)
1631 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1632 return TLSEXT_NAMETYPE_host_name;
1636 /* SSL_select_next_proto implements the standard protocol selection. It is
1637 * expected that this function is called from the callback set by
1638 * SSL_CTX_set_next_proto_select_cb.
1640 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
1641 * strings. The length byte itself is not included in the length. A byte
1642 * string of length 0 is invalid. No byte string may be truncated.
1644 * The current, but experimental algorithm for selecting the protocol is:
1646 * 1) If the server doesn't support NPN then this is indicated to the
1647 * callback. In this case, the client application has to abort the connection
1648 * or have a default application level protocol.
1650 * 2) If the server supports NPN, but advertises an empty list then the
1651 * client selects the first protcol in its list, but indicates via the
1652 * API that this fallback case was enacted.
1654 * 3) Otherwise, the client finds the first protocol in the server's list
1655 * that it supports and selects this protocol. This is because it's
1656 * assumed that the server has better information about which protocol
1657 * a client should use.
1659 * 4) If the client doesn't support any of the server's advertised
1660 * protocols, then this is treated the same as case 2.
1663 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or
1664 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1666 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)
1669 const unsigned char *result;
1670 int status = OPENSSL_NPN_UNSUPPORTED;
1672 /* For each protocol in server preference order, see if we support it. */
1673 for (i = 0; i < server_len; )
1675 for (j = 0; j < client_len; )
1677 if (server[i] == client[j] &&
1678 memcmp(&server[i+1], &client[j+1], server[i]) == 0)
1680 /* We found a match */
1681 result = &server[i];
1682 status = OPENSSL_NPN_NEGOTIATED;
1692 /* There's no overlap between our protocols and the server's list. */
1694 status = OPENSSL_NPN_NO_OVERLAP;
1697 *out = (unsigned char *) result + 1;
1698 *outlen = result[0];
1702 # ifndef OPENSSL_NO_NEXTPROTONEG
1703 /* SSL_get0_next_proto_negotiated sets *data and *len to point to the client's
1704 * requested protocol for this connection and returns 0. If the client didn't
1705 * request any protocol, then *data is set to NULL.
1707 * Note that the client can request any protocol it chooses. The value returned
1708 * from this function need not be a member of the list of supported protocols
1709 * provided by the callback.
1711 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, unsigned *len)
1713 *data = s->next_proto_negotiated;
1717 *len = s->next_proto_negotiated_len;
1721 /* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a
1722 * TLS server needs a list of supported protocols for Next Protocol
1723 * Negotiation. The returned list must be in wire format. The list is returned
1724 * by setting |out| to point to it and |outlen| to its length. This memory will
1725 * not be modified, but one should assume that the SSL* keeps a reference to
1728 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. Otherwise, no
1729 * such extension will be included in the ServerHello. */
1730 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)
1732 ctx->next_protos_advertised_cb = cb;
1733 ctx->next_protos_advertised_cb_arg = arg;
1736 /* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1737 * client needs to select a protocol from the server's provided list. |out|
1738 * must be set to point to the selected protocol (which may be within |in|).
1739 * The length of the protocol name must be written into |outlen|. The server's
1740 * advertised protocols are provided in |in| and |inlen|. The callback can
1741 * assume that |in| is syntactically valid.
1743 * The client must select a protocol. It is fatal to the connection if this
1744 * callback returns a value other than SSL_TLSEXT_ERR_OK.
1746 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)
1748 ctx->next_proto_select_cb = cb;
1749 ctx->next_proto_select_cb_arg = arg;
1753 int SSL_CTX_set_custom_cli_ext(SSL_CTX *ctx, unsigned short ext_type,
1754 custom_cli_ext_first_cb_fn fn1,
1755 custom_cli_ext_second_cb_fn fn2, void* arg)
1758 custom_cli_ext_record* record;
1760 /* Check for duplicates */
1761 for (i=0; i < ctx->custom_cli_ext_records_count; i++)
1762 if (ext_type == ctx->custom_cli_ext_records[i].ext_type)
1765 ctx->custom_cli_ext_records = OPENSSL_realloc(ctx->custom_cli_ext_records,
1766 (ctx->custom_cli_ext_records_count + 1) *
1767 sizeof(custom_cli_ext_record));
1768 if (!ctx->custom_cli_ext_records) {
1769 ctx->custom_cli_ext_records_count = 0;
1772 ctx->custom_cli_ext_records_count++;
1773 record = &ctx->custom_cli_ext_records[ctx->custom_cli_ext_records_count - 1];
1774 record->ext_type = ext_type;
1781 int SSL_CTX_set_custom_srv_ext(SSL_CTX *ctx, unsigned short ext_type,
1782 custom_srv_ext_first_cb_fn fn1,
1783 custom_srv_ext_second_cb_fn fn2, void* arg)
1786 custom_srv_ext_record* record;
1788 /* Check for duplicates */
1789 for (i=0; i < ctx->custom_srv_ext_records_count; i++)
1790 if (ext_type == ctx->custom_srv_ext_records[i].ext_type)
1793 ctx->custom_srv_ext_records = OPENSSL_realloc(ctx->custom_srv_ext_records,
1794 (ctx->custom_srv_ext_records_count + 1) *
1795 sizeof(custom_srv_ext_record));
1796 if (!ctx->custom_srv_ext_records) {
1797 ctx->custom_srv_ext_records_count = 0;
1800 ctx->custom_srv_ext_records_count++;
1801 record = &ctx->custom_srv_ext_records[ctx->custom_srv_ext_records_count - 1];
1802 record->ext_type = ext_type;
1809 /* SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1810 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1811 * length-prefixed strings).
1813 * Returns 0 on success. */
1814 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char* protos,
1815 unsigned protos_len)
1817 if (ctx->alpn_client_proto_list)
1818 OPENSSL_free(ctx->alpn_client_proto_list);
1820 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1821 if (!ctx->alpn_client_proto_list)
1823 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
1824 ctx->alpn_client_proto_list_len = protos_len;
1829 /* SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1830 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1831 * length-prefixed strings).
1833 * Returns 0 on success. */
1834 int SSL_set_alpn_protos(SSL *ssl, const unsigned char* protos,
1835 unsigned protos_len)
1837 if (ssl->alpn_client_proto_list)
1838 OPENSSL_free(ssl->alpn_client_proto_list);
1840 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1841 if (!ssl->alpn_client_proto_list)
1843 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
1844 ssl->alpn_client_proto_list_len = protos_len;
1849 /* SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is called
1850 * during ClientHello processing in order to select an ALPN protocol from the
1851 * client's list of offered protocols. */
1852 void SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx,
1853 int (*cb) (SSL *ssl,
1854 const unsigned char **out,
1855 unsigned char *outlen,
1856 const unsigned char *in,
1861 ctx->alpn_select_cb = cb;
1862 ctx->alpn_select_cb_arg = arg;
1865 /* SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
1866 * On return it sets |*data| to point to |*len| bytes of protocol name (not
1867 * including the leading length-prefix byte). If the server didn't respond with
1868 * a negotiated protocol then |*len| will be zero. */
1869 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1874 *data = ssl->s3->alpn_selected;
1878 *len = ssl->s3->alpn_selected_len;
1881 int SSL_CTX_set_cli_supp_data(SSL_CTX *ctx,
1882 unsigned short supp_data_type,
1883 cli_supp_data_first_cb_fn fn1,
1884 cli_supp_data_second_cb_fn fn2, void* arg)
1887 cli_supp_data_record* record;
1889 /* Check for duplicates */
1890 for (i=0; i < ctx->cli_supp_data_records_count; i++)
1891 if (supp_data_type == ctx->cli_supp_data_records[i].supp_data_type)
1894 ctx->cli_supp_data_records = OPENSSL_realloc(ctx->cli_supp_data_records,
1895 (ctx->cli_supp_data_records_count+1) * sizeof(cli_supp_data_record));
1896 if (!ctx->cli_supp_data_records)
1898 ctx->cli_supp_data_records_count = 0;
1901 ctx->cli_supp_data_records_count++;
1902 record = &ctx->cli_supp_data_records[ctx->cli_supp_data_records_count - 1];
1903 record->supp_data_type = supp_data_type;
1910 int SSL_CTX_set_srv_supp_data(SSL_CTX *ctx,
1911 unsigned short supp_data_type,
1912 srv_supp_data_first_cb_fn fn1,
1913 srv_supp_data_second_cb_fn fn2, void* arg)
1916 srv_supp_data_record* record;
1918 /* Check for duplicates */
1919 for (i=0; i < ctx->srv_supp_data_records_count; i++)
1920 if (supp_data_type == ctx->srv_supp_data_records[i].supp_data_type)
1923 ctx->srv_supp_data_records = OPENSSL_realloc(ctx->srv_supp_data_records,
1924 (ctx->srv_supp_data_records_count+1) * sizeof(srv_supp_data_record));
1925 if (!ctx->srv_supp_data_records)
1927 ctx->srv_supp_data_records_count = 0;
1930 ctx->srv_supp_data_records_count++;
1931 record = &ctx->srv_supp_data_records[ctx->srv_supp_data_records_count - 1];
1932 record->supp_data_type = supp_data_type;
1940 #endif /* !OPENSSL_NO_TLSEXT */
1942 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1943 const char *label, size_t llen, const unsigned char *p, size_t plen,
1946 if (s->version < TLS1_VERSION)
1949 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1954 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1959 ((unsigned int) a->session_id[0] )|
1960 ((unsigned int) a->session_id[1]<< 8L)|
1961 ((unsigned long)a->session_id[2]<<16L)|
1962 ((unsigned long)a->session_id[3]<<24L);
1966 /* NB: If this function (or indeed the hash function which uses a sort of
1967 * coarser function than this one) is changed, ensure
1968 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1969 * able to construct an SSL_SESSION that will collide with any existing session
1970 * with a matching session ID. */
1971 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1973 if (a->ssl_version != b->ssl_version)
1975 if (a->session_id_length != b->session_id_length)
1977 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1980 /* These wrapper functions should remain rather than redeclaring
1981 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1982 * variable. The reason is that the functions aren't static, they're exposed via
1984 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1985 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1987 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1993 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1998 if (FIPS_mode() && (meth->version < TLS1_VERSION))
2000 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
2005 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
2007 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
2010 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
2014 memset(ret,0,sizeof(SSL_CTX));
2018 ret->cert_store=NULL;
2019 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
2020 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
2021 ret->session_cache_head=NULL;
2022 ret->session_cache_tail=NULL;
2024 /* We take the system default */
2025 ret->session_timeout=meth->get_timeout();
2027 ret->new_session_cb=0;
2028 ret->remove_session_cb=0;
2029 ret->get_session_cb=0;
2030 ret->generate_session_id=0;
2032 memset((char *)&ret->stats,0,sizeof(ret->stats));
2035 ret->quiet_shutdown=0;
2037 /* ret->cipher=NULL;*/
2038 /* ret->s2->challenge=NULL;
2039 ret->master_key=NULL;
2041 ret->s2->conn_id=NULL; */
2043 ret->info_callback=NULL;
2045 ret->app_verify_callback=0;
2046 ret->app_verify_arg=NULL;
2048 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
2050 ret->msg_callback=0;
2051 ret->msg_callback_arg=NULL;
2052 ret->verify_mode=SSL_VERIFY_NONE;
2054 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
2056 ret->sid_ctx_length=0;
2057 ret->default_verify_callback=NULL;
2058 if ((ret->cert=ssl_cert_new()) == NULL)
2061 ret->default_passwd_callback=0;
2062 ret->default_passwd_callback_userdata=NULL;
2063 ret->client_cert_cb=0;
2064 ret->app_gen_cookie_cb=0;
2065 ret->app_verify_cookie_cb=0;
2067 ret->sessions=lh_SSL_SESSION_new();
2068 if (ret->sessions == NULL) goto err;
2069 ret->cert_store=X509_STORE_new();
2070 if (ret->cert_store == NULL) goto err;
2072 ssl_create_cipher_list(ret->method,
2073 &ret->cipher_list,&ret->cipher_list_by_id,
2074 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, ret->cert);
2075 if (ret->cipher_list == NULL
2076 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
2078 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
2082 ret->param = X509_VERIFY_PARAM_new();
2086 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
2088 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
2091 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
2093 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
2096 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
2098 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
2102 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
2105 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
2107 ret->extra_certs=NULL;
2108 /* No compression for DTLS */
2109 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
2110 ret->comp_methods=SSL_COMP_get_compression_methods();
2112 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
2114 #ifndef OPENSSL_NO_TLSEXT
2115 ret->tlsext_servername_callback = 0;
2116 ret->tlsext_servername_arg = NULL;
2117 /* Setup RFC4507 ticket keys */
2118 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
2119 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
2120 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
2121 ret->options |= SSL_OP_NO_TICKET;
2123 ret->tlsext_status_cb = 0;
2124 ret->tlsext_status_arg = NULL;
2126 # ifndef OPENSSL_NO_NEXTPROTONEG
2127 ret->next_protos_advertised_cb = 0;
2128 ret->next_proto_select_cb = 0;
2131 #ifndef OPENSSL_NO_PSK
2132 ret->psk_identity_hint=NULL;
2133 ret->psk_client_callback=NULL;
2134 ret->psk_server_callback=NULL;
2136 #ifndef OPENSSL_NO_SRP
2137 SSL_CTX_SRP_CTX_init(ret);
2139 ret->custom_cli_ext_records = NULL;
2140 ret->custom_cli_ext_records_count = 0;
2141 ret->custom_srv_ext_records = NULL;
2142 ret->custom_srv_ext_records_count = 0;
2143 ret->cli_supp_data_records = NULL;
2144 ret->cli_supp_data_records_count = 0;
2145 ret->srv_supp_data_records = NULL;
2146 ret->srv_supp_data_records_count = 0;
2147 #ifndef OPENSSL_NO_BUF_FREELISTS
2148 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
2149 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
2150 if (!ret->rbuf_freelist)
2152 ret->rbuf_freelist->chunklen = 0;
2153 ret->rbuf_freelist->len = 0;
2154 ret->rbuf_freelist->head = NULL;
2155 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
2156 if (!ret->wbuf_freelist)
2158 OPENSSL_free(ret->rbuf_freelist);
2161 ret->wbuf_freelist->chunklen = 0;
2162 ret->wbuf_freelist->len = 0;
2163 ret->wbuf_freelist->head = NULL;
2165 #ifndef OPENSSL_NO_ENGINE
2166 ret->client_cert_engine = NULL;
2167 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2168 #define eng_strx(x) #x
2169 #define eng_str(x) eng_strx(x)
2170 /* Use specific client engine automatically... ignore errors */
2173 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2177 ENGINE_load_builtin_engines();
2178 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2180 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
2185 /* Default is to connect to non-RI servers. When RI is more widely
2186 * deployed might change this.
2188 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
2192 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
2194 if (ret != NULL) SSL_CTX_free(ret);
2199 static void SSL_COMP_free(SSL_COMP *comp)
2200 { OPENSSL_free(comp); }
2203 #ifndef OPENSSL_NO_BUF_FREELISTS
2205 ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
2207 SSL3_BUF_FREELIST_ENTRY *ent, *next;
2208 for (ent = list->head; ent; ent = next)
2217 void SSL_CTX_free(SSL_CTX *a)
2221 if (a == NULL) return;
2223 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
2225 REF_PRINT("SSL_CTX",a);
2231 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
2237 X509_VERIFY_PARAM_free(a->param);
2240 * Free internal session cache. However: the remove_cb() may reference
2241 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2242 * after the sessions were flushed.
2243 * As the ex_data handling routines might also touch the session cache,
2244 * the most secure solution seems to be: empty (flush) the cache, then
2245 * free ex_data, then finally free the cache.
2246 * (See ticket [openssl.org #212].)
2248 if (a->sessions != NULL)
2249 SSL_CTX_flush_sessions(a,0);
2251 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
2253 if (a->sessions != NULL)
2254 lh_SSL_SESSION_free(a->sessions);
2256 if (a->cert_store != NULL)
2257 X509_STORE_free(a->cert_store);
2258 if (a->cipher_list != NULL)
2259 sk_SSL_CIPHER_free(a->cipher_list);
2260 if (a->cipher_list_by_id != NULL)
2261 sk_SSL_CIPHER_free(a->cipher_list_by_id);
2262 if (a->cert != NULL)
2263 ssl_cert_free(a->cert);
2264 if (a->client_CA != NULL)
2265 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
2266 if (a->extra_certs != NULL)
2267 sk_X509_pop_free(a->extra_certs,X509_free);
2268 #if 0 /* This should never be done, since it removes a global database */
2269 if (a->comp_methods != NULL)
2270 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
2272 a->comp_methods = NULL;
2275 if (a->srtp_profiles)
2276 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
2278 #ifndef OPENSSL_NO_PSK
2279 if (a->psk_identity_hint)
2280 OPENSSL_free(a->psk_identity_hint);
2282 #ifndef OPENSSL_NO_SRP
2283 SSL_CTX_SRP_CTX_free(a);
2285 #ifndef OPENSSL_NO_TLSEXT
2286 OPENSSL_free(a->custom_cli_ext_records);
2287 OPENSSL_free(a->custom_srv_ext_records);
2288 OPENSSL_free(a->cli_supp_data_records);
2289 OPENSSL_free(a->srv_supp_data_records);
2291 #ifndef OPENSSL_NO_ENGINE
2292 if (a->client_cert_engine)
2293 ENGINE_finish(a->client_cert_engine);
2296 #ifndef OPENSSL_NO_BUF_FREELISTS
2297 if (a->wbuf_freelist)
2298 ssl_buf_freelist_free(a->wbuf_freelist);
2299 if (a->rbuf_freelist)
2300 ssl_buf_freelist_free(a->rbuf_freelist);
2302 #ifndef OPENSSL_NO_TLSEXT
2303 # ifndef OPENSSL_NO_EC
2304 if (a->tlsext_ecpointformatlist)
2305 OPENSSL_free(a->tlsext_ecpointformatlist);
2306 if (a->tlsext_ellipticcurvelist)
2307 OPENSSL_free(a->tlsext_ellipticcurvelist);
2308 # endif /* OPENSSL_NO_EC */
2309 if (a->alpn_client_proto_list != NULL)
2310 OPENSSL_free(a->alpn_client_proto_list);
2316 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2318 ctx->default_passwd_callback=cb;
2321 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
2323 ctx->default_passwd_callback_userdata=u;
2326 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
2328 ctx->app_verify_callback=cb;
2329 ctx->app_verify_arg=arg;
2332 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
2334 ctx->verify_mode=mode;
2335 ctx->default_verify_callback=cb;
2338 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
2340 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2343 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb)(SSL *ssl, void *arg), void *arg)
2345 ssl_cert_set_cert_cb(c->cert, cb, arg);
2348 void SSL_set_cert_cb(SSL *s, int (*cb)(SSL *ssl, void *arg), void *arg)
2350 ssl_cert_set_cert_cb(s->cert, cb, arg);
2353 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
2356 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
2357 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
2358 int rsa_tmp_export,dh_tmp_export,kl;
2359 unsigned long mask_k,mask_a,emask_k,emask_a;
2360 #ifndef OPENSSL_NO_ECDSA
2361 int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
2363 #ifndef OPENSSL_NO_ECDH
2364 int have_ecdh_tmp, ecdh_ok;
2366 #ifndef OPENSSL_NO_EC
2368 EVP_PKEY *ecc_pkey = NULL;
2369 int signature_nid = 0, pk_nid = 0, md_nid = 0;
2371 if (c == NULL) return;
2373 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
2375 #ifndef OPENSSL_NO_RSA
2376 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2377 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
2378 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
2380 rsa_tmp=rsa_tmp_export=0;
2382 #ifndef OPENSSL_NO_DH
2383 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
2384 dh_tmp_export= !c->dh_tmp_auto && (c->dh_tmp_cb != NULL ||
2385 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
2387 dh_tmp=dh_tmp_export=0;
2390 #ifndef OPENSSL_NO_ECDH
2391 have_ecdh_tmp=(c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
2393 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
2394 rsa_enc= cpk->valid_flags & CERT_PKEY_VALID;
2395 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2396 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2397 rsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2398 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2399 dsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2400 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
2401 dh_rsa= cpk->valid_flags & CERT_PKEY_VALID;
2402 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2403 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
2404 /* FIX THIS EAY EAY EAY */
2405 dh_dsa= cpk->valid_flags & CERT_PKEY_VALID;
2406 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2407 cpk= &(c->pkeys[SSL_PKEY_ECC]);
2408 #ifndef OPENSSL_NO_EC
2409 have_ecc_cert= cpk->valid_flags & CERT_PKEY_VALID;
2419 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2420 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
2421 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
2424 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2425 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2426 mask_k |= SSL_kGOST;
2427 mask_a |= SSL_aGOST01;
2429 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2430 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2431 mask_k |= SSL_kGOST;
2432 mask_a |= SSL_aGOST94;
2435 if (rsa_enc || (rsa_tmp && rsa_sign))
2437 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2441 /* The match needs to be both kDHE and aRSA or aDSA, so don't worry */
2442 if ( (dh_tmp || dh_rsa || dh_dsa) &&
2443 (rsa_enc || rsa_sign || dsa_sign))
2445 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
2446 (rsa_enc || rsa_sign || dsa_sign))
2456 if (dh_rsa) mask_k|=SSL_kDHr;
2457 if (dh_rsa_export) emask_k|=SSL_kDHr;
2459 if (dh_dsa) mask_k|=SSL_kDHd;
2460 if (dh_dsa_export) emask_k|=SSL_kDHd;
2462 if (emask_k & (SSL_kDHr|SSL_kDHd))
2465 if (rsa_enc || rsa_sign)
2480 #ifndef OPENSSL_NO_KRB5
2487 /* An ECC certificate may be usable for ECDH and/or
2488 * ECDSA cipher suites depending on the key usage extension.
2490 #ifndef OPENSSL_NO_EC
2493 cpk = &c->pkeys[SSL_PKEY_ECC];
2495 /* This call populates extension flags (ex_flags) */
2496 X509_check_purpose(x, -1, 0);
2497 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2498 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2499 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2500 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2501 if (!(cpk->valid_flags & CERT_PKEY_SIGN))
2503 ecc_pkey = X509_get_pubkey(x);
2504 ecc_pkey_size = (ecc_pkey != NULL) ?
2505 EVP_PKEY_bits(ecc_pkey) : 0;
2506 EVP_PKEY_free(ecc_pkey);
2507 if ((x->sig_alg) && (x->sig_alg->algorithm))
2509 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2510 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2512 #ifndef OPENSSL_NO_ECDH
2516 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa)
2520 if (ecc_pkey_size <= 163)
2522 emask_k|=SSL_kECDHr;
2527 if (pk_nid == NID_X9_62_id_ecPublicKey)
2531 if (ecc_pkey_size <= 163)
2533 emask_k|=SSL_kECDHe;
2539 #ifndef OPENSSL_NO_ECDSA
2543 emask_a|=SSL_aECDSA;
2549 #ifndef OPENSSL_NO_ECDH
2553 emask_k|=SSL_kECDHE;
2557 #ifndef OPENSSL_NO_PSK
2560 emask_k |= SSL_kPSK;
2561 emask_a |= SSL_aPSK;
2566 c->export_mask_k=emask_k;
2567 c->export_mask_a=emask_a;
2571 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2572 #define ku_reject(x, usage) \
2573 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2575 #ifndef OPENSSL_NO_EC
2577 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2579 unsigned long alg_k, alg_a;
2580 EVP_PKEY *pkey = NULL;
2582 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2583 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2585 alg_k = cs->algorithm_mkey;
2586 alg_a = cs->algorithm_auth;
2588 if (SSL_C_IS_EXPORT(cs))
2590 /* ECDH key length in export ciphers must be <= 163 bits */
2591 pkey = X509_get_pubkey(x);
2592 if (pkey == NULL) return 0;
2593 keysize = EVP_PKEY_bits(pkey);
2594 EVP_PKEY_free(pkey);
2595 if (keysize > 163) return 0;
2598 /* This call populates the ex_flags field correctly */
2599 X509_check_purpose(x, -1, 0);
2600 if ((x->sig_alg) && (x->sig_alg->algorithm))
2602 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2603 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2605 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
2607 /* key usage, if present, must allow key agreement */
2608 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
2610 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2613 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION)
2615 /* signature alg must be ECDSA */
2616 if (pk_nid != NID_X9_62_id_ecPublicKey)
2618 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2622 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION)
2624 /* signature alg must be RSA */
2626 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa)
2628 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2633 if (alg_a & SSL_aECDSA)
2635 /* key usage, if present, must allow signing */
2636 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
2638 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2643 return 1; /* all checks are ok */
2648 static int ssl_get_server_cert_index(const SSL *s)
2651 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2652 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2653 idx = SSL_PKEY_RSA_SIGN;
2655 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX,ERR_R_INTERNAL_ERROR);
2659 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s)
2665 if (!s->s3 || !s->s3->tmp.new_cipher)
2667 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2669 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2670 /* Broken protocol test: return last used certificate: which may
2671 * mismatch the one expected.
2673 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2677 i = ssl_get_server_cert_index(s);
2679 /* This may or may not be an error. */
2684 return &c->pkeys[i];
2687 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher, const EVP_MD **pmd)
2689 unsigned long alg_a;
2693 alg_a = cipher->algorithm_auth;
2696 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2697 /* Broken protocol test: use last key: which may
2698 * mismatch the one expected.
2700 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2701 idx = c->key - c->pkeys;
2705 if ((alg_a & SSL_aDSS) &&
2706 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2707 idx = SSL_PKEY_DSA_SIGN;
2708 else if (alg_a & SSL_aRSA)
2710 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2711 idx = SSL_PKEY_RSA_SIGN;
2712 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2713 idx = SSL_PKEY_RSA_ENC;
2715 else if ((alg_a & SSL_aECDSA) &&
2716 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2720 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2724 *pmd = c->pkeys[idx].digest;
2725 return c->pkeys[idx].privatekey;
2728 #ifndef OPENSSL_NO_TLSEXT
2729 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2730 size_t *serverinfo_length)
2734 *serverinfo_length = 0;
2737 i = ssl_get_server_cert_index(s);
2741 if (c->pkeys[i].serverinfo == NULL)
2744 *serverinfo = c->pkeys[i].serverinfo;
2745 *serverinfo_length = c->pkeys[i].serverinfo_length;
2750 void ssl_update_cache(SSL *s,int mode)
2754 /* If the session_id_length is 0, we are not supposed to cache it,
2755 * and it would be rather hard to do anyway :-) */
2756 if (s->session->session_id_length == 0) return;
2758 i=s->session_ctx->session_cache_mode;
2759 if ((i & mode) && (!s->hit)
2760 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2761 || SSL_CTX_add_session(s->session_ctx,s->session))
2762 && (s->session_ctx->new_session_cb != NULL))
2764 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2765 if (!s->session_ctx->new_session_cb(s,s->session))
2766 SSL_SESSION_free(s->session);
2769 /* auto flush every 255 connections */
2770 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2771 ((i & mode) == mode))
2773 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2774 ?s->session_ctx->stats.sess_connect_good
2775 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2777 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2782 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2787 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2792 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2797 if (s->method != meth)
2799 if (s->handshake_func != NULL)
2800 conn=(s->handshake_func == s->method->ssl_connect);
2802 if (s->method->version == meth->version)
2806 s->method->ssl_free(s);
2808 ret=s->method->ssl_new(s);
2812 s->handshake_func=meth->ssl_connect;
2814 s->handshake_func=meth->ssl_accept;
2819 int SSL_get_error(const SSL *s,int i)
2825 if (i > 0) return(SSL_ERROR_NONE);
2827 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2828 * etc, where we do encode the error */
2829 if ((l=ERR_peek_error()) != 0)
2831 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2832 return(SSL_ERROR_SYSCALL);
2834 return(SSL_ERROR_SSL);
2837 if ((i < 0) && SSL_want_read(s))
2839 bio=SSL_get_rbio(s);
2840 if (BIO_should_read(bio))
2841 return(SSL_ERROR_WANT_READ);
2842 else if (BIO_should_write(bio))
2843 /* This one doesn't make too much sense ... We never try
2844 * to write to the rbio, and an application program where
2845 * rbio and wbio are separate couldn't even know what it
2847 * However if we ever set s->rwstate incorrectly
2848 * (so that we have SSL_want_read(s) instead of
2849 * SSL_want_write(s)) and rbio and wbio *are* the same,
2850 * this test works around that bug; so it might be safer
2852 return(SSL_ERROR_WANT_WRITE);
2853 else if (BIO_should_io_special(bio))
2855 reason=BIO_get_retry_reason(bio);
2856 if (reason == BIO_RR_CONNECT)
2857 return(SSL_ERROR_WANT_CONNECT);
2858 else if (reason == BIO_RR_ACCEPT)
2859 return(SSL_ERROR_WANT_ACCEPT);
2861 return(SSL_ERROR_SYSCALL); /* unknown */
2865 if ((i < 0) && SSL_want_write(s))
2867 bio=SSL_get_wbio(s);
2868 if (BIO_should_write(bio))
2869 return(SSL_ERROR_WANT_WRITE);
2870 else if (BIO_should_read(bio))
2871 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2872 return(SSL_ERROR_WANT_READ);
2873 else if (BIO_should_io_special(bio))
2875 reason=BIO_get_retry_reason(bio);
2876 if (reason == BIO_RR_CONNECT)
2877 return(SSL_ERROR_WANT_CONNECT);
2878 else if (reason == BIO_RR_ACCEPT)
2879 return(SSL_ERROR_WANT_ACCEPT);
2881 return(SSL_ERROR_SYSCALL);
2884 if ((i < 0) && SSL_want_x509_lookup(s))
2886 return(SSL_ERROR_WANT_X509_LOOKUP);
2891 if (s->version == SSL2_VERSION)
2893 /* assume it is the socket being closed */
2894 return(SSL_ERROR_ZERO_RETURN);
2898 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2899 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2900 return(SSL_ERROR_ZERO_RETURN);
2903 return(SSL_ERROR_SYSCALL);
2906 int SSL_do_handshake(SSL *s)
2910 if (s->handshake_func == NULL)
2912 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2916 s->method->ssl_renegotiate_check(s);
2918 if (SSL_in_init(s) || SSL_in_before(s))
2920 ret=s->handshake_func(s);
2925 /* For the next 2 functions, SSL_clear() sets shutdown and so
2926 * one of these calls will reset it */
2927 void SSL_set_accept_state(SSL *s)
2931 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2932 s->handshake_func=s->method->ssl_accept;
2933 /* clear the current cipher */
2934 ssl_clear_cipher_ctx(s);
2935 ssl_clear_hash_ctx(&s->read_hash);
2936 ssl_clear_hash_ctx(&s->write_hash);
2939 void SSL_set_connect_state(SSL *s)
2943 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2944 s->handshake_func=s->method->ssl_connect;
2945 /* clear the current cipher */
2946 ssl_clear_cipher_ctx(s);
2947 ssl_clear_hash_ctx(&s->read_hash);
2948 ssl_clear_hash_ctx(&s->write_hash);
2951 int ssl_undefined_function(SSL *s)
2953 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2957 int ssl_undefined_void_function(void)
2959 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2963 int ssl_undefined_const_function(const SSL *s)
2965 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2969 SSL_METHOD *ssl_bad_method(int ver)
2971 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2975 const char *SSL_get_version(const SSL *s)
2977 if (s->version == TLS1_2_VERSION)
2979 else if (s->version == TLS1_1_VERSION)
2981 else if (s->version == TLS1_VERSION)
2983 else if (s->version == SSL3_VERSION)
2985 else if (s->version == SSL2_VERSION)
2991 SSL *SSL_dup(SSL *s)
2993 STACK_OF(X509_NAME) *sk;
2998 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
3001 ret->version = s->version;
3002 ret->type = s->type;
3003 ret->method = s->method;
3005 if (s->session != NULL)
3007 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
3008 SSL_copy_session_id(ret,s);
3012 /* No session has been established yet, so we have to expect
3013 * that s->cert or ret->cert will be changed later --
3014 * they should not both point to the same object,
3015 * and thus we can't use SSL_copy_session_id. */
3017 ret->method->ssl_free(ret);
3018 ret->method = s->method;
3019 ret->method->ssl_new(ret);
3021 if (s->cert != NULL)
3023 if (ret->cert != NULL)
3025 ssl_cert_free(ret->cert);
3027 ret->cert = ssl_cert_dup(s->cert);
3028 if (ret->cert == NULL)
3032 SSL_set_session_id_context(ret,
3033 s->sid_ctx, s->sid_ctx_length);
3036 ret->options=s->options;
3038 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
3039 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
3040 ret->msg_callback = s->msg_callback;
3041 ret->msg_callback_arg = s->msg_callback_arg;
3042 SSL_set_verify(ret,SSL_get_verify_mode(s),
3043 SSL_get_verify_callback(s));
3044 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
3045 ret->generate_session_id = s->generate_session_id;
3047 SSL_set_info_callback(ret,SSL_get_info_callback(s));
3049 ret->debug=s->debug;
3051 /* copy app data, a little dangerous perhaps */
3052 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
3055 /* setup rbio, and wbio */
3056 if (s->rbio != NULL)
3058 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
3061 if (s->wbio != NULL)
3063 if (s->wbio != s->rbio)
3065 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
3069 ret->wbio=ret->rbio;
3071 ret->rwstate = s->rwstate;
3072 ret->in_handshake = s->in_handshake;
3073 ret->handshake_func = s->handshake_func;
3074 ret->server = s->server;
3075 ret->renegotiate = s->renegotiate;
3076 ret->new_session = s->new_session;
3077 ret->quiet_shutdown = s->quiet_shutdown;
3078 ret->shutdown=s->shutdown;
3079 ret->state=s->state; /* SSL_dup does not really work at any state, though */
3080 ret->rstate=s->rstate;
3081 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
3084 X509_VERIFY_PARAM_inherit(ret->param, s->param);
3086 /* dup the cipher_list and cipher_list_by_id stacks */
3087 if (s->cipher_list != NULL)
3089 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
3092 if (s->cipher_list_by_id != NULL)
3093 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
3097 /* Dup the client_CA list */
3098 if (s->client_CA != NULL)
3100 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
3102 for (i=0; i<sk_X509_NAME_num(sk); i++)
3104 xn=sk_X509_NAME_value(sk,i);
3105 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
3116 if (ret != NULL) SSL_free(ret);
3122 void ssl_clear_cipher_ctx(SSL *s)
3124 if (s->enc_read_ctx != NULL)
3126 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
3127 OPENSSL_free(s->enc_read_ctx);
3128 s->enc_read_ctx=NULL;
3130 if (s->enc_write_ctx != NULL)
3132 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
3133 OPENSSL_free(s->enc_write_ctx);
3134 s->enc_write_ctx=NULL;
3136 #ifndef OPENSSL_NO_COMP
3137 if (s->expand != NULL)
3139 COMP_CTX_free(s->expand);
3142 if (s->compress != NULL)
3144 COMP_CTX_free(s->compress);
3150 X509 *SSL_get_certificate(const SSL *s)
3152 if (s->cert != NULL)
3153 return(s->cert->key->x509);
3158 EVP_PKEY *SSL_get_privatekey(const SSL *s)
3160 if (s->cert != NULL)
3161 return(s->cert->key->privatekey);
3166 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
3168 if (ctx->cert != NULL)
3169 return ctx->cert->key->x509;
3174 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
3176 if (ctx->cert != NULL)
3177 return ctx->cert->key->privatekey;
3182 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
3184 if ((s->session != NULL) && (s->session->cipher != NULL))
3185 return(s->session->cipher);
3188 #ifdef OPENSSL_NO_COMP
3189 const void *SSL_get_current_compression(SSL *s)
3193 const void *SSL_get_current_expansion(SSL *s)
3199 const COMP_METHOD *SSL_get_current_compression(SSL *s)
3201 if (s->compress != NULL)
3202 return(s->compress->meth);
3206 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
3208 if (s->expand != NULL)
3209 return(s->expand->meth);
3214 int ssl_init_wbio_buffer(SSL *s,int push)
3218 if (s->bbio == NULL)
3220 bbio=BIO_new(BIO_f_buffer());
3221 if (bbio == NULL) return(0);
3227 if (s->bbio == s->wbio)
3228 s->wbio=BIO_pop(s->wbio);
3230 (void)BIO_reset(bbio);
3231 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
3232 if (!BIO_set_read_buffer_size(bbio,1))
3234 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
3239 if (s->wbio != bbio)
3240 s->wbio=BIO_push(bbio,s->wbio);
3244 if (s->wbio == bbio)
3245 s->wbio=BIO_pop(bbio);
3250 void ssl_free_wbio_buffer(SSL *s)
3252 if (s->bbio == NULL) return;
3254 if (s->bbio == s->wbio)
3256 /* remove buffering */
3257 s->wbio=BIO_pop(s->wbio);
3258 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
3259 assert(s->wbio != NULL);
3266 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
3268 ctx->quiet_shutdown=mode;
3271 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
3273 return(ctx->quiet_shutdown);
3276 void SSL_set_quiet_shutdown(SSL *s,int mode)
3278 s->quiet_shutdown=mode;
3281 int SSL_get_quiet_shutdown(const SSL *s)
3283 return(s->quiet_shutdown);
3286 void SSL_set_shutdown(SSL *s,int mode)
3291 int SSL_get_shutdown(const SSL *s)
3293 return(s->shutdown);
3296 int SSL_version(const SSL *s)
3301 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
3306 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
3308 if (ssl->ctx == ctx)
3310 #ifndef OPENSSL_NO_TLSEXT
3312 ctx = ssl->initial_ctx;
3314 if (ssl->cert != NULL)
3315 ssl_cert_free(ssl->cert);
3316 ssl->cert = ssl_cert_dup(ctx->cert);
3317 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
3318 if (ssl->ctx != NULL)
3319 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3324 #ifndef OPENSSL_NO_STDIO
3325 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3327 return(X509_STORE_set_default_paths(ctx->cert_store));
3330 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3333 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
3337 void SSL_set_info_callback(SSL *ssl,
3338 void (*cb)(const SSL *ssl,int type,int val))
3340 ssl->info_callback=cb;
3343 /* One compiler (Diab DCC) doesn't like argument names in returned
3344 function pointer. */
3345 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
3347 return ssl->info_callback;
3350 int SSL_state(const SSL *ssl)
3355 void SSL_set_state(SSL *ssl, int state)
3360 void SSL_set_verify_result(SSL *ssl,long arg)
3362 ssl->verify_result=arg;
3365 long SSL_get_verify_result(const SSL *ssl)
3367 return(ssl->verify_result);
3370 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3371 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3373 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
3374 new_func, dup_func, free_func);
3377 int SSL_set_ex_data(SSL *s,int idx,void *arg)
3379 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3382 void *SSL_get_ex_data(const SSL *s,int idx)
3384 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3387 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3388 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3390 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3391 new_func, dup_func, free_func);
3394 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
3396 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3399 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
3401 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3409 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3411 return(ctx->cert_store);
3414 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
3416 if (ctx->cert_store != NULL)
3417 X509_STORE_free(ctx->cert_store);
3418 ctx->cert_store=store;
3421 int SSL_want(const SSL *s)
3427 * \brief Set the callback for generating temporary RSA keys.
3428 * \param ctx the SSL context.
3429 * \param cb the callback
3432 #ifndef OPENSSL_NO_RSA
3433 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
3437 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3440 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
3444 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3450 * \brief The RSA temporary key callback function.
3451 * \param ssl the SSL session.
3452 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3453 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3454 * of the required key in bits.
3455 * \return the temporary RSA key.
3456 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3459 RSA *cb(SSL *ssl,int is_export,int keylength)
3464 * \brief Set the callback for generating temporary DH keys.
3465 * \param ctx the SSL context.
3466 * \param dh the callback
3469 #ifndef OPENSSL_NO_DH
3470 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
3473 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3476 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
3479 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3483 #ifndef OPENSSL_NO_ECDH
3484 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3487 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3490 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3493 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3497 #ifndef OPENSSL_NO_PSK
3498 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3500 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3502 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3505 if (ctx->psk_identity_hint != NULL)
3506 OPENSSL_free(ctx->psk_identity_hint);
3507 if (identity_hint != NULL)
3509 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3510 if (ctx->psk_identity_hint == NULL)
3514 ctx->psk_identity_hint = NULL;
3518 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3523 if (s->session == NULL)
3524 return 1; /* session not created yet, ignored */
3526 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3528 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3531 if (s->session->psk_identity_hint != NULL)
3532 OPENSSL_free(s->session->psk_identity_hint);
3533 if (identity_hint != NULL)
3535 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3536 if (s->session->psk_identity_hint == NULL)
3540 s->session->psk_identity_hint = NULL;
3544 const char *SSL_get_psk_identity_hint(const SSL *s)
3546 if (s == NULL || s->session == NULL)
3548 return(s->session->psk_identity_hint);
3551 const char *SSL_get_psk_identity(const SSL *s)
3553 if (s == NULL || s->session == NULL)
3555 return(s->session->psk_identity);
3558 void SSL_set_psk_client_callback(SSL *s,
3559 unsigned int (*cb)(SSL *ssl, const char *hint,
3560 char *identity, unsigned int max_identity_len, unsigned char *psk,
3561 unsigned int max_psk_len))
3563 s->psk_client_callback = cb;
3566 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3567 unsigned int (*cb)(SSL *ssl, const char *hint,
3568 char *identity, unsigned int max_identity_len, unsigned char *psk,
3569 unsigned int max_psk_len))
3571 ctx->psk_client_callback = cb;
3574 void SSL_set_psk_server_callback(SSL *s,
3575 unsigned int (*cb)(SSL *ssl, const char *identity,
3576 unsigned char *psk, unsigned int max_psk_len))
3578 s->psk_server_callback = cb;
3581 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3582 unsigned int (*cb)(SSL *ssl, const char *identity,
3583 unsigned char *psk, unsigned int max_psk_len))
3585 ctx->psk_server_callback = cb;
3589 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))
3591 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3593 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))
3595 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3598 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3599 int (*cb)(SSL *ssl, int is_forward_secure))
3601 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3602 (void (*)(void))cb);
3604 void SSL_set_not_resumable_session_callback(SSL *ssl,
3605 int (*cb)(SSL *ssl, int is_forward_secure))
3607 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3608 (void (*)(void))cb);
3611 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3612 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
3613 * any. If EVP_MD pointer is passed, initializes ctx with this md
3614 * Returns newly allocated ctx;
3617 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
3619 ssl_clear_hash_ctx(hash);
3620 *hash = EVP_MD_CTX_create();
3621 if (md) EVP_DigestInit_ex(*hash,md,NULL);
3624 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3627 if (*hash) EVP_MD_CTX_destroy(*hash);
3631 void SSL_set_debug(SSL *s, int debug)
3636 int SSL_cache_hit(SSL *s)
3641 int SSL_is_server(SSL *s)
3646 void SSL_set_security_level(SSL *s, int level)
3648 s->cert->sec_level = level;
3651 int SSL_get_security_level(const SSL *s)
3653 return s->cert->sec_level;
3656 void SSL_set_security_callback(SSL *s, int (*cb)(SSL *s, SSL_CTX *ctx, int op, int bits, int nid, void *other, void *ex))
3658 s->cert->sec_cb = cb;
3661 int (*SSL_get_security_callback(const SSL *s))(SSL *s, SSL_CTX *ctx, int op, int bits, int nid, void *other, void *ex)
3663 return s->cert->sec_cb;
3666 void SSL_set0_security_ex_data(SSL *s, void *ex)
3668 s->cert->sec_ex = ex;
3671 void *SSL_get0_security_ex_data(const SSL *s)
3673 return s->cert->sec_ex;
3676 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
3678 ctx->cert->sec_level = level;
3681 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
3683 return ctx->cert->sec_level;
3686 void SSL_CTX_set_security_callback(SSL_CTX *ctx, int (*cb)(SSL *s, SSL_CTX *ctx, int op, int bits, int nid, void *other, void *ex))
3688 ctx->cert->sec_cb = cb;
3691 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx))(SSL *s, SSL_CTX *ctx, int op, int bits, int nid, void *other, void *ex)
3693 return ctx->cert->sec_cb;
3696 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
3698 ctx->cert->sec_ex = ex;
3701 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
3703 return ctx->cert->sec_ex;
3707 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3708 #include "../crypto/bio/bss_file.c"
3711 IMPLEMENT_STACK_OF(SSL_CIPHER)
3712 IMPLEMENT_STACK_OF(SSL_COMP)
3713 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,