1 /*! \file ssl/ssl_lib.c
2 * \brief Version independent SSL functions.
4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
7 * This package is an SSL implementation written
8 * by Eric Young (eay@cryptsoft.com).
9 * The implementation was written so as to conform with Netscapes SSL.
11 * This library is free for commercial and non-commercial use as long as
12 * the following conditions are aheared to. The following conditions
13 * apply to all code found in this distribution, be it the RC4, RSA,
14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
15 * included with this distribution is covered by the same copyright terms
16 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
18 * Copyright remains Eric Young's, and as such any Copyright notices in
19 * the code are not to be removed.
20 * If this package is used in a product, Eric Young should be given attribution
21 * as the author of the parts of the library used.
22 * This can be in the form of a textual message at program startup or
23 * in documentation (online or textual) provided with the package.
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
28 * 1. Redistributions of source code must retain the copyright
29 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 * 3. All advertising materials mentioning features or use of this software
34 * must display the following acknowledgement:
35 * "This product includes cryptographic software written by
36 * Eric Young (eay@cryptsoft.com)"
37 * The word 'cryptographic' can be left out if the rouines from the library
38 * being used are not cryptographic related :-).
39 * 4. If you include any Windows specific code (or a derivative thereof) from
40 * the apps directory (application code) you must include an acknowledgement:
41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * The licence and distribution terms for any publically available version or
56 * derivative of this code cannot be changed. i.e. this code cannot simply be
57 * copied and put under another distribution licence
58 * [including the GNU Public Licence.]
60 /* ====================================================================
61 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
67 * 1. Redistributions of source code must retain the above copyright
68 * notice, this list of conditions and the following disclaimer.
70 * 2. Redistributions in binary form must reproduce the above copyright
71 * notice, this list of conditions and the following disclaimer in
72 * the documentation and/or other materials provided with the
75 * 3. All advertising materials mentioning features or use of this
76 * software must display the following acknowledgment:
77 * "This product includes software developed by the OpenSSL Project
78 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
80 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
81 * endorse or promote products derived from this software without
82 * prior written permission. For written permission, please contact
83 * openssl-core@openssl.org.
85 * 5. Products derived from this software may not be called "OpenSSL"
86 * nor may "OpenSSL" appear in their names without prior written
87 * permission of the OpenSSL Project.
89 * 6. Redistributions of any form whatsoever must retain the following
91 * "This product includes software developed by the OpenSSL Project
92 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
94 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
95 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
97 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
98 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
99 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
100 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
101 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
102 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
103 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
104 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
105 * OF THE POSSIBILITY OF SUCH DAMAGE.
106 * ====================================================================
108 * This product includes cryptographic software written by Eric Young
109 * (eay@cryptsoft.com). This product includes software written by Tim
110 * Hudson (tjh@cryptsoft.com).
113 /* ====================================================================
114 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
115 * ECC cipher suite support in OpenSSL originally developed by
116 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
118 /* ====================================================================
119 * Copyright 2005 Nokia. All rights reserved.
121 * The portions of the attached software ("Contribution") is developed by
122 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
125 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
126 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
127 * support (see RFC 4279) to OpenSSL.
129 * No patent licenses or other rights except those expressly stated in
130 * the OpenSSL open source license shall be deemed granted or received
131 * expressly, by implication, estoppel, or otherwise.
133 * No assurances are provided by Nokia that the Contribution does not
134 * infringe the patent or other intellectual property rights of any third
135 * party or that the license provides you with all the necessary rights
136 * to make use of the Contribution.
138 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
139 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
140 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
141 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
149 #include "ssl_locl.h"
150 #include "kssl_lcl.h"
151 #include <openssl/objects.h>
152 #include <openssl/lhash.h>
153 #include <openssl/x509v3.h>
154 #include <openssl/rand.h>
155 #include <openssl/ocsp.h>
156 #ifndef OPENSSL_NO_DH
157 #include <openssl/dh.h>
159 #ifndef OPENSSL_NO_ENGINE
160 #include <openssl/engine.h>
163 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
165 SSL3_ENC_METHOD ssl3_undef_enc_method={
166 /* evil casts, but these functions are only called if there's a library bug */
167 (int (*)(SSL *,int))ssl_undefined_function,
168 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
169 ssl_undefined_function,
170 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
171 (int (*)(SSL*, int))ssl_undefined_function,
172 (int (*)(SSL *, const char*, int, unsigned char *))ssl_undefined_function,
173 0, /* finish_mac_length */
174 (int (*)(SSL *, int, unsigned char *))ssl_undefined_function,
175 NULL, /* client_finished_label */
176 0, /* client_finished_label_len */
177 NULL, /* server_finished_label */
178 0, /* server_finished_label_len */
179 (int (*)(int))ssl_undefined_function,
180 (int (*)(SSL *, unsigned char *, size_t, const char *,
181 size_t, const unsigned char *, size_t,
182 int use_context)) ssl_undefined_function,
185 int SSL_clear(SSL *s)
188 if (s->method == NULL)
190 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
194 if (ssl_clear_bad_session(s))
196 SSL_SESSION_free(s->session);
204 #if 0 /* Disabled since version 1.10 of this file (early return not
205 * needed because SSL_clear is not called when doing renegotiation) */
206 /* This is set if we are doing dynamic renegotiation so keep
207 * the old cipher. It is sort of a SSL_clear_lite :-) */
208 if (s->renegotiate) return(1);
212 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
219 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
221 s->version=s->method->version;
222 s->client_version=s->version;
223 s->rwstate=SSL_NOTHING;
224 s->rstate=SSL_ST_READ_HEADER;
226 s->read_ahead=s->ctx->read_ahead;
229 if (s->init_buf != NULL)
231 BUF_MEM_free(s->init_buf);
235 ssl_clear_cipher_ctx(s);
236 ssl_clear_hash_ctx(&s->read_hash);
237 ssl_clear_hash_ctx(&s->write_hash);
242 /* Check to see if we were changed into a different method, if
243 * so, revert back if we are not doing session-id reuse. */
244 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
246 s->method->ssl_free(s);
247 s->method=s->ctx->method;
248 if (!s->method->ssl_new(s))
253 s->method->ssl_clear(s);
257 /** Used to change an SSL_CTXs default SSL method type */
258 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,const SSL_METHOD *meth)
260 STACK_OF(SSL_CIPHER) *sk;
264 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
265 &(ctx->cipher_list_by_id),
266 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, ctx->cert);
267 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
269 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
275 SSL *SSL_new(SSL_CTX *ctx)
281 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
284 if (ctx->method == NULL)
286 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
290 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
291 if (s == NULL) goto err;
292 memset(s,0,sizeof(SSL));
294 #ifndef OPENSSL_NO_KRB5
295 s->kssl_ctx = kssl_ctx_new();
296 #endif /* OPENSSL_NO_KRB5 */
298 s->options=ctx->options;
300 s->max_cert_list=ctx->max_cert_list;
302 if (ctx->cert != NULL)
304 /* Earlier library versions used to copy the pointer to
305 * the CERT, not its contents; only when setting new
306 * parameters for the per-SSL copy, ssl_cert_new would be
307 * called (and the direct reference to the per-SSL_CTX
308 * settings would be lost, but those still were indirectly
309 * accessed for various purposes, and for that reason they
310 * used to be known as s->ctx->default_cert).
311 * Now we don't look at the SSL_CTX's CERT after having
312 * duplicated it once. */
314 s->cert = ssl_cert_dup(ctx->cert);
319 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
321 s->read_ahead=ctx->read_ahead;
322 s->msg_callback=ctx->msg_callback;
323 s->msg_callback_arg=ctx->msg_callback_arg;
324 s->verify_mode=ctx->verify_mode;
326 s->verify_depth=ctx->verify_depth;
328 s->sid_ctx_length=ctx->sid_ctx_length;
329 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
330 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
331 s->verify_callback=ctx->default_verify_callback;
332 s->generate_session_id=ctx->generate_session_id;
334 s->param = X509_VERIFY_PARAM_new();
337 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
339 s->purpose = ctx->purpose;
340 s->trust = ctx->trust;
342 s->quiet_shutdown=ctx->quiet_shutdown;
343 s->max_send_fragment = ctx->max_send_fragment;
345 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
347 #ifndef OPENSSL_NO_TLSEXT
348 s->tlsext_debug_cb = 0;
349 s->tlsext_debug_arg = NULL;
350 s->tlsext_ticket_expected = 0;
351 s->tlsext_status_type = -1;
352 s->tlsext_status_expected = 0;
353 s->tlsext_ocsp_ids = NULL;
354 s->tlsext_ocsp_exts = NULL;
355 s->tlsext_ocsp_resp = NULL;
356 s->tlsext_ocsp_resplen = -1;
357 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
359 #ifndef OPENSSL_NO_EC
360 if (ctx->tlsext_ecpointformatlist)
362 s->tlsext_ecpointformatlist =
363 BUF_memdup(ctx->tlsext_ecpointformatlist,
364 ctx->tlsext_ecpointformatlist_length);
365 if (!s->tlsext_ecpointformatlist)
367 s->tlsext_ecpointformatlist_length =
368 ctx->tlsext_ecpointformatlist_length;
370 if (ctx->tlsext_ellipticcurvelist)
372 s->tlsext_ellipticcurvelist =
373 BUF_memdup(ctx->tlsext_ellipticcurvelist,
374 ctx->tlsext_ellipticcurvelist_length);
375 if (!s->tlsext_ellipticcurvelist)
377 s->tlsext_ellipticcurvelist_length =
378 ctx->tlsext_ellipticcurvelist_length;
381 # ifndef OPENSSL_NO_NEXTPROTONEG
382 s->next_proto_negotiated = NULL;
385 if (s->ctx->alpn_client_proto_list)
387 s->alpn_client_proto_list =
388 OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
389 if (s->alpn_client_proto_list == NULL)
391 memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
392 s->ctx->alpn_client_proto_list_len);
393 s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
397 s->verify_result=X509_V_OK;
399 s->method=ctx->method;
401 if (!s->method->ssl_new(s))
405 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
409 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
411 #ifndef OPENSSL_NO_PSK
412 s->psk_client_callback=ctx->psk_client_callback;
413 s->psk_server_callback=ctx->psk_server_callback;
421 ssl_cert_free(s->cert);
423 SSL_CTX_free(s->ctx); /* decrement reference count */
426 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
430 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
431 unsigned int sid_ctx_len)
433 if(sid_ctx_len > sizeof ctx->sid_ctx)
435 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
438 ctx->sid_ctx_length=sid_ctx_len;
439 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
444 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
445 unsigned int sid_ctx_len)
447 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
449 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
452 ssl->sid_ctx_length=sid_ctx_len;
453 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
458 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
460 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
461 ctx->generate_session_id = cb;
462 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
466 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
468 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
469 ssl->generate_session_id = cb;
470 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
474 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
477 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
478 * we can "construct" a session to give us the desired check - ie. to
479 * find if there's a session in the hash table that would conflict with
480 * any new session built out of this id/id_len and the ssl_version in
481 * use by this SSL. */
484 if(id_len > sizeof r.session_id)
487 r.ssl_version = ssl->version;
488 r.session_id_length = id_len;
489 memcpy(r.session_id, id, id_len);
490 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
491 * callback is calling us to check the uniqueness of a shorter ID, it
492 * must be compared as a padded-out ID because that is what it will be
493 * converted to when the callback has finished choosing it. */
494 if((r.ssl_version == SSL2_VERSION) &&
495 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
497 memset(r.session_id + id_len, 0,
498 SSL2_SSL_SESSION_ID_LENGTH - id_len);
499 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
502 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
503 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
504 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
508 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
510 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
513 int SSL_set_purpose(SSL *s, int purpose)
515 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
518 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
520 return X509_VERIFY_PARAM_set_trust(s->param, trust);
523 int SSL_set_trust(SSL *s, int trust)
525 return X509_VERIFY_PARAM_set_trust(s->param, trust);
528 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
530 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
533 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
535 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
538 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
543 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
548 void SSL_certs_clear(SSL *s)
550 ssl_cert_clear_certs(s->cert);
553 void SSL_free(SSL *s)
560 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
568 fprintf(stderr,"SSL_free, bad reference count\n");
574 X509_VERIFY_PARAM_free(s->param);
576 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
580 /* If the buffering BIO is in place, pop it off */
581 if (s->bbio == s->wbio)
583 s->wbio=BIO_pop(s->wbio);
589 BIO_free_all(s->rbio);
590 if ((s->wbio != NULL) && (s->wbio != s->rbio))
591 BIO_free_all(s->wbio);
593 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
595 /* add extra stuff */
596 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
597 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
599 /* Make the next call work :-) */
600 if (s->session != NULL)
602 ssl_clear_bad_session(s);
603 SSL_SESSION_free(s->session);
606 ssl_clear_cipher_ctx(s);
607 ssl_clear_hash_ctx(&s->read_hash);
608 ssl_clear_hash_ctx(&s->write_hash);
610 if (s->cert != NULL) ssl_cert_free(s->cert);
611 /* Free up if allocated */
613 #ifndef OPENSSL_NO_TLSEXT
614 if (s->tlsext_hostname)
615 OPENSSL_free(s->tlsext_hostname);
616 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx);
617 #ifndef OPENSSL_NO_EC
618 if (s->tlsext_ecpointformatlist) OPENSSL_free(s->tlsext_ecpointformatlist);
619 if (s->tlsext_ellipticcurvelist) OPENSSL_free(s->tlsext_ellipticcurvelist);
620 #endif /* OPENSSL_NO_EC */
621 if (s->tlsext_opaque_prf_input) OPENSSL_free(s->tlsext_opaque_prf_input);
622 if (s->tlsext_ocsp_exts)
623 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
624 X509_EXTENSION_free);
625 if (s->tlsext_ocsp_ids)
626 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
627 if (s->tlsext_ocsp_resp)
628 OPENSSL_free(s->tlsext_ocsp_resp);
629 if (s->alpn_client_proto_list)
630 OPENSSL_free(s->alpn_client_proto_list);
633 if (s->client_CA != NULL)
634 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
636 if (s->method != NULL) s->method->ssl_free(s);
638 if (s->ctx) SSL_CTX_free(s->ctx);
640 #ifndef OPENSSL_NO_KRB5
641 if (s->kssl_ctx != NULL)
642 kssl_ctx_free(s->kssl_ctx);
643 #endif /* OPENSSL_NO_KRB5 */
645 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
646 if (s->next_proto_negotiated)
647 OPENSSL_free(s->next_proto_negotiated);
650 if (s->srtp_profiles)
651 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
656 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
658 /* If the output buffering BIO is still in place, remove it
662 if (s->wbio == s->bbio)
664 s->wbio=s->wbio->next_bio;
665 s->bbio->next_bio=NULL;
668 if ((s->rbio != NULL) && (s->rbio != rbio))
669 BIO_free_all(s->rbio);
670 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
671 BIO_free_all(s->wbio);
676 BIO *SSL_get_rbio(const SSL *s)
679 BIO *SSL_get_wbio(const SSL *s)
682 int SSL_get_fd(const SSL *s)
684 return(SSL_get_rfd(s));
687 int SSL_get_rfd(const SSL *s)
693 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
699 int SSL_get_wfd(const SSL *s)
705 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
711 #ifndef OPENSSL_NO_SOCK
712 int SSL_set_fd(SSL *s,int fd)
717 bio=BIO_new(BIO_s_socket());
721 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
724 BIO_set_fd(bio,fd,BIO_NOCLOSE);
725 SSL_set_bio(s,bio,bio);
731 int SSL_set_wfd(SSL *s,int fd)
736 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
737 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
739 bio=BIO_new(BIO_s_socket());
742 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
743 BIO_set_fd(bio,fd,BIO_NOCLOSE);
744 SSL_set_bio(s,SSL_get_rbio(s),bio);
747 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
753 int SSL_set_rfd(SSL *s,int fd)
758 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
759 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
761 bio=BIO_new(BIO_s_socket());
765 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
768 BIO_set_fd(bio,fd,BIO_NOCLOSE);
769 SSL_set_bio(s,bio,SSL_get_wbio(s));
772 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
780 /* return length of latest Finished message we sent, copy to 'buf' */
781 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
787 ret = s->s3->tmp.finish_md_len;
790 memcpy(buf, s->s3->tmp.finish_md, count);
795 /* return length of latest Finished message we expected, copy to 'buf' */
796 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
802 ret = s->s3->tmp.peer_finish_md_len;
805 memcpy(buf, s->s3->tmp.peer_finish_md, count);
811 int SSL_get_verify_mode(const SSL *s)
813 return(s->verify_mode);
816 int SSL_get_verify_depth(const SSL *s)
818 return X509_VERIFY_PARAM_get_depth(s->param);
821 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
823 return(s->verify_callback);
826 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
828 return(ctx->verify_mode);
831 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
833 return X509_VERIFY_PARAM_get_depth(ctx->param);
836 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
838 return(ctx->default_verify_callback);
841 void SSL_set_verify(SSL *s,int mode,
842 int (*callback)(int ok,X509_STORE_CTX *ctx))
845 if (callback != NULL)
846 s->verify_callback=callback;
849 void SSL_set_verify_depth(SSL *s,int depth)
851 X509_VERIFY_PARAM_set_depth(s->param, depth);
854 void SSL_set_read_ahead(SSL *s,int yes)
859 int SSL_get_read_ahead(const SSL *s)
861 return(s->read_ahead);
864 int SSL_pending(const SSL *s)
866 /* SSL_pending cannot work properly if read-ahead is enabled
867 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
868 * and it is impossible to fix since SSL_pending cannot report
869 * errors that may be observed while scanning the new data.
870 * (Note that SSL_pending() is often used as a boolean value,
871 * so we'd better not return -1.)
873 return(s->method->ssl_pending(s));
876 X509 *SSL_get_peer_certificate(const SSL *s)
880 if ((s == NULL) || (s->session == NULL))
885 if (r == NULL) return(r);
887 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
892 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
896 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
899 r=s->session->sess_cert->cert_chain;
901 /* If we are a client, cert_chain includes the peer's own
902 * certificate; if we are a server, it does not. */
907 /* Now in theory, since the calling process own 't' it should be safe to
908 * modify. We need to be able to read f without being hassled */
909 void SSL_copy_session_id(SSL *t,const SSL *f)
913 /* Do we need to to SSL locking? */
914 SSL_set_session(t,SSL_get_session(f));
916 /* what if we are setup as SSLv2 but want to talk SSLv3 or
918 if (t->method != f->method)
920 t->method->ssl_free(t); /* cleanup current */
921 t->method=f->method; /* change method */
922 t->method->ssl_new(t); /* setup new */
928 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
933 if (tmp != NULL) ssl_cert_free(tmp);
934 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
937 /* Fix this so it checks all the valid key/cert options */
938 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
940 if ( (ctx == NULL) ||
941 (ctx->cert == NULL) ||
942 (ctx->cert->key->x509 == NULL))
944 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
947 if (ctx->cert->key->privatekey == NULL)
949 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
952 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
955 /* Fix this function so that it takes an optional type parameter */
956 int SSL_check_private_key(const SSL *ssl)
960 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
963 if (ssl->cert == NULL)
965 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
968 if (ssl->cert->key->x509 == NULL)
970 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
973 if (ssl->cert->key->privatekey == NULL)
975 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
978 return(X509_check_private_key(ssl->cert->key->x509,
979 ssl->cert->key->privatekey));
982 int SSL_accept(SSL *s)
984 if (s->handshake_func == 0)
985 /* Not properly initialized yet */
986 SSL_set_accept_state(s);
988 return(s->method->ssl_accept(s));
991 int SSL_connect(SSL *s)
993 if (s->handshake_func == 0)
994 /* Not properly initialized yet */
995 SSL_set_connect_state(s);
997 return(s->method->ssl_connect(s));
1000 long SSL_get_default_timeout(const SSL *s)
1002 return(s->method->get_timeout());
1005 int SSL_read(SSL *s,void *buf,int num)
1007 if (s->handshake_func == 0)
1009 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
1013 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
1015 s->rwstate=SSL_NOTHING;
1018 return(s->method->ssl_read(s,buf,num));
1021 int SSL_peek(SSL *s,void *buf,int num)
1023 if (s->handshake_func == 0)
1025 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
1029 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
1033 return(s->method->ssl_peek(s,buf,num));
1036 int SSL_write(SSL *s,const void *buf,int num)
1038 if (s->handshake_func == 0)
1040 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
1044 if (s->shutdown & SSL_SENT_SHUTDOWN)
1046 s->rwstate=SSL_NOTHING;
1047 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
1050 return(s->method->ssl_write(s,buf,num));
1053 int SSL_shutdown(SSL *s)
1055 /* Note that this function behaves differently from what one might
1056 * expect. Return values are 0 for no success (yet),
1057 * 1 for success; but calling it once is usually not enough,
1058 * even if blocking I/O is used (see ssl3_shutdown).
1061 if (s->handshake_func == 0)
1063 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1067 if ((s != NULL) && !SSL_in_init(s))
1068 return(s->method->ssl_shutdown(s));
1073 int SSL_renegotiate(SSL *s)
1075 if (s->renegotiate == 0)
1080 return(s->method->ssl_renegotiate(s));
1083 int SSL_renegotiate_abbreviated(SSL *s)
1085 if (s->renegotiate == 0)
1090 return(s->method->ssl_renegotiate(s));
1093 int SSL_renegotiate_pending(SSL *s)
1095 /* becomes true when negotiation is requested;
1096 * false again once a handshake has finished */
1097 return (s->renegotiate != 0);
1100 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
1103 #ifndef OPENSSL_NO_DANE
1104 const char *hostname = NULL;
1109 case SSL_CTRL_GET_READ_AHEAD:
1110 return(s->read_ahead);
1111 case SSL_CTRL_SET_READ_AHEAD:
1116 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1117 s->msg_callback_arg = parg;
1120 case SSL_CTRL_OPTIONS:
1121 return(s->options|=larg);
1122 case SSL_CTRL_CLEAR_OPTIONS:
1123 return(s->options&=~larg);
1125 return(s->mode|=larg);
1126 case SSL_CTRL_CLEAR_MODE:
1127 return(s->mode &=~larg);
1128 case SSL_CTRL_GET_MAX_CERT_LIST:
1129 return(s->max_cert_list);
1130 case SSL_CTRL_SET_MAX_CERT_LIST:
1132 s->max_cert_list=larg;
1134 case SSL_CTRL_SET_MTU:
1135 #ifndef OPENSSL_NO_DTLS1
1136 if (larg < (long)dtls1_min_mtu())
1146 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1147 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1149 s->max_send_fragment = larg;
1151 case SSL_CTRL_GET_RI_SUPPORT:
1153 return s->s3->send_connection_binding;
1155 case SSL_CTRL_CERT_FLAGS:
1156 return(s->cert->cert_flags|=larg);
1157 case SSL_CTRL_CLEAR_CERT_FLAGS:
1158 return(s->cert->cert_flags &=~larg);
1160 case SSL_CTRL_GET_RAW_CIPHERLIST:
1163 if (s->cert->ciphers_raw == NULL)
1165 *(unsigned char **)parg = s->cert->ciphers_raw;
1166 return (int)s->cert->ciphers_rawlen;
1169 return ssl_put_cipher_by_char(s,NULL,NULL);
1170 #ifndef OPENSSL_NO_DANE
1171 case SSL_CTRL_PULL_TLSA_RECORD:
1173 parg = SSL_get_tlsa_record_byname (parg,larg,s->version<0xF000?1:0);
1174 /* yes, fall through */
1175 case SSL_CTRL_SET_TLSA_RECORD:
1178 TLSA_EX_DATA *ex = SSL_get_TLSA_ex_data(s);
1179 unsigned char *tlsa_rec = parg;
1188 memcpy(&dlen,tlsa_rec,sizeof(dlen));
1189 tlsa_rec += sizeof(dlen)+dlen;
1193 if ((tlsa_rec = OPENSSL_malloc(tlsa_len)))
1194 memcpy(tlsa_rec,parg,tlsa_len);
1197 SSLerr(SSL_F_SSL_CTRL,SSL_R_UNINITIALIZED);
1201 ex->tlsa_record = tlsa_rec;
1206 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1210 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1214 case SSL_CTRL_SET_MSG_CALLBACK:
1215 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1219 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1223 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1225 return ctx->sessions;
1228 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1231 /* For some cases with ctx == NULL perform syntax checks */
1236 #ifndef OPENSSL_NO_EC
1237 case SSL_CTRL_SET_CURVES_LIST:
1238 return tls1_set_curves_list(NULL, NULL, parg);
1240 case SSL_CTRL_SET_SIGALGS_LIST:
1241 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1242 return tls1_set_sigalgs_list(NULL, parg, 0);
1250 case SSL_CTRL_GET_READ_AHEAD:
1251 return(ctx->read_ahead);
1252 case SSL_CTRL_SET_READ_AHEAD:
1254 ctx->read_ahead=larg;
1257 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1258 ctx->msg_callback_arg = parg;
1261 case SSL_CTRL_GET_MAX_CERT_LIST:
1262 return(ctx->max_cert_list);
1263 case SSL_CTRL_SET_MAX_CERT_LIST:
1264 l=ctx->max_cert_list;
1265 ctx->max_cert_list=larg;
1268 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1269 l=ctx->session_cache_size;
1270 ctx->session_cache_size=larg;
1272 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1273 return(ctx->session_cache_size);
1274 case SSL_CTRL_SET_SESS_CACHE_MODE:
1275 l=ctx->session_cache_mode;
1276 ctx->session_cache_mode=larg;
1278 case SSL_CTRL_GET_SESS_CACHE_MODE:
1279 return(ctx->session_cache_mode);
1281 case SSL_CTRL_SESS_NUMBER:
1282 return(lh_SSL_SESSION_num_items(ctx->sessions));
1283 case SSL_CTRL_SESS_CONNECT:
1284 return(ctx->stats.sess_connect);
1285 case SSL_CTRL_SESS_CONNECT_GOOD:
1286 return(ctx->stats.sess_connect_good);
1287 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1288 return(ctx->stats.sess_connect_renegotiate);
1289 case SSL_CTRL_SESS_ACCEPT:
1290 return(ctx->stats.sess_accept);
1291 case SSL_CTRL_SESS_ACCEPT_GOOD:
1292 return(ctx->stats.sess_accept_good);
1293 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1294 return(ctx->stats.sess_accept_renegotiate);
1295 case SSL_CTRL_SESS_HIT:
1296 return(ctx->stats.sess_hit);
1297 case SSL_CTRL_SESS_CB_HIT:
1298 return(ctx->stats.sess_cb_hit);
1299 case SSL_CTRL_SESS_MISSES:
1300 return(ctx->stats.sess_miss);
1301 case SSL_CTRL_SESS_TIMEOUTS:
1302 return(ctx->stats.sess_timeout);
1303 case SSL_CTRL_SESS_CACHE_FULL:
1304 return(ctx->stats.sess_cache_full);
1305 case SSL_CTRL_OPTIONS:
1306 return(ctx->options|=larg);
1307 case SSL_CTRL_CLEAR_OPTIONS:
1308 return(ctx->options&=~larg);
1310 return(ctx->mode|=larg);
1311 case SSL_CTRL_CLEAR_MODE:
1312 return(ctx->mode&=~larg);
1313 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1314 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1316 ctx->max_send_fragment = larg;
1318 case SSL_CTRL_CERT_FLAGS:
1319 return(ctx->cert->cert_flags|=larg);
1320 case SSL_CTRL_CLEAR_CERT_FLAGS:
1321 return(ctx->cert->cert_flags &=~larg);
1323 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1327 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1331 case SSL_CTRL_SET_MSG_CALLBACK:
1332 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1336 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1340 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1348 return((l > 0)?1:-1);
1351 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1352 const SSL_CIPHER * const *bp)
1356 l=(*ap)->id-(*bp)->id;
1360 return((l > 0)?1:-1);
1363 /** return a STACK of the ciphers available for the SSL and in order of
1365 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1369 if (s->cipher_list != NULL)
1371 return(s->cipher_list);
1373 else if ((s->ctx != NULL) &&
1374 (s->ctx->cipher_list != NULL))
1376 return(s->ctx->cipher_list);
1382 /** return a STACK of the ciphers available for the SSL and in order of
1384 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1388 if (s->cipher_list_by_id != NULL)
1390 return(s->cipher_list_by_id);
1392 else if ((s->ctx != NULL) &&
1393 (s->ctx->cipher_list_by_id != NULL))
1395 return(s->ctx->cipher_list_by_id);
1401 /** The old interface to get the same thing as SSL_get_ciphers() */
1402 const char *SSL_get_cipher_list(const SSL *s,int n)
1405 STACK_OF(SSL_CIPHER) *sk;
1407 if (s == NULL) return(NULL);
1408 sk=SSL_get_ciphers(s);
1409 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1411 c=sk_SSL_CIPHER_value(sk,n);
1412 if (c == NULL) return(NULL);
1416 /** specify the ciphers to be used by default by the SSL_CTX */
1417 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1419 STACK_OF(SSL_CIPHER) *sk;
1421 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1422 &ctx->cipher_list_by_id,str, ctx->cert);
1423 /* ssl_create_cipher_list may return an empty stack if it
1424 * was unable to find a cipher matching the given rule string
1425 * (for example if the rule string specifies a cipher which
1426 * has been disabled). This is not an error as far as
1427 * ssl_create_cipher_list is concerned, and hence
1428 * ctx->cipher_list and ctx->cipher_list_by_id has been
1432 else if (sk_SSL_CIPHER_num(sk) == 0)
1434 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1440 /** specify the ciphers to be used by the SSL */
1441 int SSL_set_cipher_list(SSL *s,const char *str)
1443 STACK_OF(SSL_CIPHER) *sk;
1445 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1446 &s->cipher_list_by_id,str, s->cert);
1447 /* see comment in SSL_CTX_set_cipher_list */
1450 else if (sk_SSL_CIPHER_num(sk) == 0)
1452 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1458 /* works well for SSLv2, not so good for SSLv3 */
1459 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1462 STACK_OF(SSL_CIPHER) *sk;
1466 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1471 sk=s->session->ciphers;
1472 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1476 c=sk_SSL_CIPHER_value(sk,i);
1494 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1495 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1501 int no_scsv = s->renegotiate;
1502 /* Set disabled masks for this session */
1503 ssl_set_client_disabled(s);
1505 if (sk == NULL) return(0);
1508 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1510 c=sk_SSL_CIPHER_value(sk,i);
1511 /* Skip disabled ciphers */
1512 if (c->algorithm_ssl & ct->mask_ssl ||
1513 c->algorithm_mkey & ct->mask_k ||
1514 c->algorithm_auth & ct->mask_a)
1516 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1517 if (c->id == SSL3_CK_SCSV)
1525 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1528 /* If p == q, no ciphers and caller indicates an error. Otherwise
1529 * add SCSV if not renegotiating.
1531 if (p != q && !no_scsv)
1533 static SSL_CIPHER scsv =
1535 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1537 j = put_cb ? put_cb(&scsv,p) : ssl_put_cipher_by_char(s,&scsv,p);
1539 #ifdef OPENSSL_RI_DEBUG
1540 fprintf(stderr, "SCSV sent by client\n");
1547 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1548 STACK_OF(SSL_CIPHER) **skp)
1550 const SSL_CIPHER *c;
1551 STACK_OF(SSL_CIPHER) *sk;
1554 s->s3->send_connection_binding = 0;
1556 n=ssl_put_cipher_by_char(s,NULL,NULL);
1559 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1562 if ((skp == NULL) || (*skp == NULL))
1563 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1567 sk_SSL_CIPHER_zero(sk);
1570 if (s->cert->ciphers_raw)
1571 OPENSSL_free(s->cert->ciphers_raw);
1572 s->cert->ciphers_raw = BUF_memdup(p, num);
1573 if (s->cert->ciphers_raw == NULL)
1575 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1578 s->cert->ciphers_rawlen = (size_t)num;
1580 for (i=0; i<num; i+=n)
1582 /* Check for SCSV */
1583 if (s->s3 && (n != 3 || !p[0]) &&
1584 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1585 (p[n-1] == (SSL3_CK_SCSV & 0xff)))
1587 /* SCSV fatal if renegotiating */
1590 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1591 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1594 s->s3->send_connection_binding = 1;
1596 #ifdef OPENSSL_RI_DEBUG
1597 fprintf(stderr, "SCSV received by server\n");
1602 c=ssl_get_cipher_by_char(s,p);
1606 if (!sk_SSL_CIPHER_push(sk,c))
1608 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1618 if ((skp == NULL) || (*skp == NULL))
1619 sk_SSL_CIPHER_free(sk);
1624 #ifndef OPENSSL_NO_TLSEXT
1625 /** return a servername extension value if provided in Client Hello, or NULL.
1626 * So far, only host_name types are defined (RFC 3546).
1629 const char *SSL_get_servername(const SSL *s, const int type)
1631 if (type != TLSEXT_NAMETYPE_host_name)
1634 return s->session && !s->tlsext_hostname ?
1635 s->session->tlsext_hostname :
1639 int SSL_get_servername_type(const SSL *s)
1641 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1642 return TLSEXT_NAMETYPE_host_name;
1646 /* SSL_select_next_proto implements the standard protocol selection. It is
1647 * expected that this function is called from the callback set by
1648 * SSL_CTX_set_next_proto_select_cb.
1650 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
1651 * strings. The length byte itself is not included in the length. A byte
1652 * string of length 0 is invalid. No byte string may be truncated.
1654 * The current, but experimental algorithm for selecting the protocol is:
1656 * 1) If the server doesn't support NPN then this is indicated to the
1657 * callback. In this case, the client application has to abort the connection
1658 * or have a default application level protocol.
1660 * 2) If the server supports NPN, but advertises an empty list then the
1661 * client selects the first protcol in its list, but indicates via the
1662 * API that this fallback case was enacted.
1664 * 3) Otherwise, the client finds the first protocol in the server's list
1665 * that it supports and selects this protocol. This is because it's
1666 * assumed that the server has better information about which protocol
1667 * a client should use.
1669 * 4) If the client doesn't support any of the server's advertised
1670 * protocols, then this is treated the same as case 2.
1673 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or
1674 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1676 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)
1679 const unsigned char *result;
1680 int status = OPENSSL_NPN_UNSUPPORTED;
1682 /* For each protocol in server preference order, see if we support it. */
1683 for (i = 0; i < server_len; )
1685 for (j = 0; j < client_len; )
1687 if (server[i] == client[j] &&
1688 memcmp(&server[i+1], &client[j+1], server[i]) == 0)
1690 /* We found a match */
1691 result = &server[i];
1692 status = OPENSSL_NPN_NEGOTIATED;
1702 /* There's no overlap between our protocols and the server's list. */
1704 status = OPENSSL_NPN_NO_OVERLAP;
1707 *out = (unsigned char *) result + 1;
1708 *outlen = result[0];
1712 # ifndef OPENSSL_NO_NEXTPROTONEG
1713 /* SSL_get0_next_proto_negotiated sets *data and *len to point to the client's
1714 * requested protocol for this connection and returns 0. If the client didn't
1715 * request any protocol, then *data is set to NULL.
1717 * Note that the client can request any protocol it chooses. The value returned
1718 * from this function need not be a member of the list of supported protocols
1719 * provided by the callback.
1721 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, unsigned *len)
1723 *data = s->next_proto_negotiated;
1727 *len = s->next_proto_negotiated_len;
1731 /* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a
1732 * TLS server needs a list of supported protocols for Next Protocol
1733 * Negotiation. The returned list must be in wire format. The list is returned
1734 * by setting |out| to point to it and |outlen| to its length. This memory will
1735 * not be modified, but one should assume that the SSL* keeps a reference to
1738 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. Otherwise, no
1739 * such extension will be included in the ServerHello. */
1740 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)
1742 ctx->next_protos_advertised_cb = cb;
1743 ctx->next_protos_advertised_cb_arg = arg;
1746 /* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1747 * client needs to select a protocol from the server's provided list. |out|
1748 * must be set to point to the selected protocol (which may be within |in|).
1749 * The length of the protocol name must be written into |outlen|. The server's
1750 * advertised protocols are provided in |in| and |inlen|. The callback can
1751 * assume that |in| is syntactically valid.
1753 * The client must select a protocol. It is fatal to the connection if this
1754 * callback returns a value other than SSL_TLSEXT_ERR_OK.
1756 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)
1758 ctx->next_proto_select_cb = cb;
1759 ctx->next_proto_select_cb_arg = arg;
1763 int SSL_CTX_set_custom_cli_ext(SSL_CTX *ctx, unsigned short ext_type,
1764 custom_cli_ext_first_cb_fn fn1,
1765 custom_cli_ext_second_cb_fn fn2, void* arg)
1768 custom_cli_ext_record* record;
1770 /* Check for duplicates */
1771 for (i=0; i < ctx->custom_cli_ext_records_count; i++)
1772 if (ext_type == ctx->custom_cli_ext_records[i].ext_type)
1775 ctx->custom_cli_ext_records = OPENSSL_realloc(ctx->custom_cli_ext_records,
1776 (ctx->custom_cli_ext_records_count + 1) *
1777 sizeof(custom_cli_ext_record));
1778 if (!ctx->custom_cli_ext_records) {
1779 ctx->custom_cli_ext_records_count = 0;
1782 ctx->custom_cli_ext_records_count++;
1783 record = &ctx->custom_cli_ext_records[ctx->custom_cli_ext_records_count - 1];
1784 record->ext_type = ext_type;
1791 int SSL_CTX_set_custom_srv_ext(SSL_CTX *ctx, unsigned short ext_type,
1792 custom_srv_ext_first_cb_fn fn1,
1793 custom_srv_ext_second_cb_fn fn2, void* arg)
1796 custom_srv_ext_record* record;
1798 /* Check for duplicates */
1799 for (i=0; i < ctx->custom_srv_ext_records_count; i++)
1800 if (ext_type == ctx->custom_srv_ext_records[i].ext_type)
1803 ctx->custom_srv_ext_records = OPENSSL_realloc(ctx->custom_srv_ext_records,
1804 (ctx->custom_srv_ext_records_count + 1) *
1805 sizeof(custom_srv_ext_record));
1806 if (!ctx->custom_srv_ext_records) {
1807 ctx->custom_srv_ext_records_count = 0;
1810 ctx->custom_srv_ext_records_count++;
1811 record = &ctx->custom_srv_ext_records[ctx->custom_srv_ext_records_count - 1];
1812 record->ext_type = ext_type;
1819 /* SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1820 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1821 * length-prefixed strings).
1823 * Returns 0 on success. */
1824 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char* protos,
1825 unsigned protos_len)
1827 if (ctx->alpn_client_proto_list)
1828 OPENSSL_free(ctx->alpn_client_proto_list);
1830 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1831 if (!ctx->alpn_client_proto_list)
1833 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
1834 ctx->alpn_client_proto_list_len = protos_len;
1839 /* SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1840 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1841 * length-prefixed strings).
1843 * Returns 0 on success. */
1844 int SSL_set_alpn_protos(SSL *ssl, const unsigned char* protos,
1845 unsigned protos_len)
1847 if (ssl->alpn_client_proto_list)
1848 OPENSSL_free(ssl->alpn_client_proto_list);
1850 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1851 if (!ssl->alpn_client_proto_list)
1853 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
1854 ssl->alpn_client_proto_list_len = protos_len;
1859 /* SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is called
1860 * during ClientHello processing in order to select an ALPN protocol from the
1861 * client's list of offered protocols. */
1862 void SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx,
1863 int (*cb) (SSL *ssl,
1864 const unsigned char **out,
1865 unsigned char *outlen,
1866 const unsigned char *in,
1871 ctx->alpn_select_cb = cb;
1872 ctx->alpn_select_cb_arg = arg;
1875 /* SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
1876 * On return it sets |*data| to point to |*len| bytes of protocol name (not
1877 * including the leading length-prefix byte). If the server didn't respond with
1878 * a negotiated protocol then |*len| will be zero. */
1879 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1884 *data = ssl->s3->alpn_selected;
1888 *len = ssl->s3->alpn_selected_len;
1891 int SSL_CTX_set_cli_supp_data(SSL_CTX *ctx,
1892 unsigned short supp_data_type,
1893 cli_supp_data_first_cb_fn fn1,
1894 cli_supp_data_second_cb_fn fn2, void* arg)
1897 cli_supp_data_record* record;
1899 /* Check for duplicates */
1900 for (i=0; i < ctx->cli_supp_data_records_count; i++)
1901 if (supp_data_type == ctx->cli_supp_data_records[i].supp_data_type)
1904 ctx->cli_supp_data_records = OPENSSL_realloc(ctx->cli_supp_data_records,
1905 (ctx->cli_supp_data_records_count+1) * sizeof(cli_supp_data_record));
1906 if (!ctx->cli_supp_data_records)
1908 ctx->cli_supp_data_records_count = 0;
1911 ctx->cli_supp_data_records_count++;
1912 record = &ctx->cli_supp_data_records[ctx->cli_supp_data_records_count - 1];
1913 record->supp_data_type = supp_data_type;
1920 int SSL_CTX_set_srv_supp_data(SSL_CTX *ctx,
1921 unsigned short supp_data_type,
1922 srv_supp_data_first_cb_fn fn1,
1923 srv_supp_data_second_cb_fn fn2, void* arg)
1926 srv_supp_data_record* record;
1928 /* Check for duplicates */
1929 for (i=0; i < ctx->srv_supp_data_records_count; i++)
1930 if (supp_data_type == ctx->srv_supp_data_records[i].supp_data_type)
1933 ctx->srv_supp_data_records = OPENSSL_realloc(ctx->srv_supp_data_records,
1934 (ctx->srv_supp_data_records_count+1) * sizeof(srv_supp_data_record));
1935 if (!ctx->srv_supp_data_records)
1937 ctx->srv_supp_data_records_count = 0;
1940 ctx->srv_supp_data_records_count++;
1941 record = &ctx->srv_supp_data_records[ctx->srv_supp_data_records_count - 1];
1942 record->supp_data_type = supp_data_type;
1950 #endif /* !OPENSSL_NO_TLSEXT */
1952 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1953 const char *label, size_t llen, const unsigned char *p, size_t plen,
1956 if (s->version < TLS1_VERSION)
1959 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1964 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1969 ((unsigned int) a->session_id[0] )|
1970 ((unsigned int) a->session_id[1]<< 8L)|
1971 ((unsigned long)a->session_id[2]<<16L)|
1972 ((unsigned long)a->session_id[3]<<24L);
1976 /* NB: If this function (or indeed the hash function which uses a sort of
1977 * coarser function than this one) is changed, ensure
1978 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1979 * able to construct an SSL_SESSION that will collide with any existing session
1980 * with a matching session ID. */
1981 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1983 if (a->ssl_version != b->ssl_version)
1985 if (a->session_id_length != b->session_id_length)
1987 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1990 /* These wrapper functions should remain rather than redeclaring
1991 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1992 * variable. The reason is that the functions aren't static, they're exposed via
1994 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1995 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1997 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
2003 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
2008 if (FIPS_mode() && (meth->version < TLS1_VERSION))
2010 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
2015 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
2017 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
2020 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
2024 memset(ret,0,sizeof(SSL_CTX));
2028 ret->cert_store=NULL;
2029 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
2030 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
2031 ret->session_cache_head=NULL;
2032 ret->session_cache_tail=NULL;
2034 /* We take the system default */
2035 ret->session_timeout=meth->get_timeout();
2037 ret->new_session_cb=0;
2038 ret->remove_session_cb=0;
2039 ret->get_session_cb=0;
2040 ret->generate_session_id=0;
2042 memset((char *)&ret->stats,0,sizeof(ret->stats));
2045 ret->quiet_shutdown=0;
2047 /* ret->cipher=NULL;*/
2048 /* ret->s2->challenge=NULL;
2049 ret->master_key=NULL;
2051 ret->s2->conn_id=NULL; */
2053 ret->info_callback=NULL;
2055 ret->app_verify_callback=0;
2056 ret->app_verify_arg=NULL;
2058 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
2060 ret->msg_callback=0;
2061 ret->msg_callback_arg=NULL;
2062 ret->verify_mode=SSL_VERIFY_NONE;
2064 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
2066 ret->sid_ctx_length=0;
2067 ret->default_verify_callback=NULL;
2068 if ((ret->cert=ssl_cert_new()) == NULL)
2071 ret->default_passwd_callback=0;
2072 ret->default_passwd_callback_userdata=NULL;
2073 ret->client_cert_cb=0;
2074 ret->app_gen_cookie_cb=0;
2075 ret->app_verify_cookie_cb=0;
2077 ret->sessions=lh_SSL_SESSION_new();
2078 if (ret->sessions == NULL) goto err;
2079 ret->cert_store=X509_STORE_new();
2080 if (ret->cert_store == NULL) goto err;
2082 ssl_create_cipher_list(ret->method,
2083 &ret->cipher_list,&ret->cipher_list_by_id,
2084 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, ret->cert);
2085 if (ret->cipher_list == NULL
2086 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
2088 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
2092 ret->param = X509_VERIFY_PARAM_new();
2096 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
2098 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
2101 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
2103 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
2106 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
2108 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
2112 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
2115 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
2117 ret->extra_certs=NULL;
2118 /* No compression for DTLS */
2119 if (meth->version != DTLS1_VERSION)
2120 ret->comp_methods=SSL_COMP_get_compression_methods();
2122 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
2124 #ifndef OPENSSL_NO_TLSEXT
2125 ret->tlsext_servername_callback = 0;
2126 ret->tlsext_servername_arg = NULL;
2127 /* Setup RFC4507 ticket keys */
2128 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
2129 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
2130 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
2131 ret->options |= SSL_OP_NO_TICKET;
2133 ret->tlsext_status_cb = 0;
2134 ret->tlsext_status_arg = NULL;
2136 # ifndef OPENSSL_NO_NEXTPROTONEG
2137 ret->next_protos_advertised_cb = 0;
2138 ret->next_proto_select_cb = 0;
2141 #ifndef OPENSSL_NO_PSK
2142 ret->psk_identity_hint=NULL;
2143 ret->psk_client_callback=NULL;
2144 ret->psk_server_callback=NULL;
2146 #ifndef OPENSSL_NO_SRP
2147 SSL_CTX_SRP_CTX_init(ret);
2149 ret->custom_cli_ext_records = NULL;
2150 ret->custom_cli_ext_records_count = 0;
2151 ret->custom_srv_ext_records = NULL;
2152 ret->custom_srv_ext_records_count = 0;
2153 ret->cli_supp_data_records = NULL;
2154 ret->cli_supp_data_records_count = 0;
2155 ret->srv_supp_data_records = NULL;
2156 ret->srv_supp_data_records_count = 0;
2157 #ifndef OPENSSL_NO_BUF_FREELISTS
2158 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
2159 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
2160 if (!ret->rbuf_freelist)
2162 ret->rbuf_freelist->chunklen = 0;
2163 ret->rbuf_freelist->len = 0;
2164 ret->rbuf_freelist->head = NULL;
2165 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
2166 if (!ret->wbuf_freelist)
2168 OPENSSL_free(ret->rbuf_freelist);
2171 ret->wbuf_freelist->chunklen = 0;
2172 ret->wbuf_freelist->len = 0;
2173 ret->wbuf_freelist->head = NULL;
2175 #ifndef OPENSSL_NO_ENGINE
2176 ret->client_cert_engine = NULL;
2177 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2178 #define eng_strx(x) #x
2179 #define eng_str(x) eng_strx(x)
2180 /* Use specific client engine automatically... ignore errors */
2183 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2187 ENGINE_load_builtin_engines();
2188 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2190 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
2195 /* Default is to connect to non-RI servers. When RI is more widely
2196 * deployed might change this.
2198 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
2202 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
2204 if (ret != NULL) SSL_CTX_free(ret);
2209 static void SSL_COMP_free(SSL_COMP *comp)
2210 { OPENSSL_free(comp); }
2213 #ifndef OPENSSL_NO_BUF_FREELISTS
2215 ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
2217 SSL3_BUF_FREELIST_ENTRY *ent, *next;
2218 for (ent = list->head; ent; ent = next)
2227 void SSL_CTX_free(SSL_CTX *a)
2231 if (a == NULL) return;
2233 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
2235 REF_PRINT("SSL_CTX",a);
2241 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
2247 X509_VERIFY_PARAM_free(a->param);
2250 * Free internal session cache. However: the remove_cb() may reference
2251 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2252 * after the sessions were flushed.
2253 * As the ex_data handling routines might also touch the session cache,
2254 * the most secure solution seems to be: empty (flush) the cache, then
2255 * free ex_data, then finally free the cache.
2256 * (See ticket [openssl.org #212].)
2258 if (a->sessions != NULL)
2259 SSL_CTX_flush_sessions(a,0);
2261 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
2263 if (a->sessions != NULL)
2264 lh_SSL_SESSION_free(a->sessions);
2266 if (a->cert_store != NULL)
2267 X509_STORE_free(a->cert_store);
2268 if (a->cipher_list != NULL)
2269 sk_SSL_CIPHER_free(a->cipher_list);
2270 if (a->cipher_list_by_id != NULL)
2271 sk_SSL_CIPHER_free(a->cipher_list_by_id);
2272 if (a->cert != NULL)
2273 ssl_cert_free(a->cert);
2274 if (a->client_CA != NULL)
2275 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
2276 if (a->extra_certs != NULL)
2277 sk_X509_pop_free(a->extra_certs,X509_free);
2278 #if 0 /* This should never be done, since it removes a global database */
2279 if (a->comp_methods != NULL)
2280 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
2282 a->comp_methods = NULL;
2285 if (a->srtp_profiles)
2286 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
2288 #ifndef OPENSSL_NO_PSK
2289 if (a->psk_identity_hint)
2290 OPENSSL_free(a->psk_identity_hint);
2292 #ifndef OPENSSL_NO_SRP
2293 SSL_CTX_SRP_CTX_free(a);
2295 #ifndef OPENSSL_NO_TLSEXT
2296 OPENSSL_free(a->custom_cli_ext_records);
2297 OPENSSL_free(a->custom_srv_ext_records);
2298 OPENSSL_free(a->cli_supp_data_records);
2299 OPENSSL_free(a->srv_supp_data_records);
2301 #ifndef OPENSSL_NO_ENGINE
2302 if (a->client_cert_engine)
2303 ENGINE_finish(a->client_cert_engine);
2306 #ifndef OPENSSL_NO_BUF_FREELISTS
2307 if (a->wbuf_freelist)
2308 ssl_buf_freelist_free(a->wbuf_freelist);
2309 if (a->rbuf_freelist)
2310 ssl_buf_freelist_free(a->rbuf_freelist);
2312 #ifndef OPENSSL_NO_TLSEXT
2313 # ifndef OPENSSL_NO_EC
2314 if (a->tlsext_ecpointformatlist)
2315 OPENSSL_free(a->tlsext_ecpointformatlist);
2316 if (a->tlsext_ellipticcurvelist)
2317 OPENSSL_free(a->tlsext_ellipticcurvelist);
2318 # endif /* OPENSSL_NO_EC */
2319 if (a->alpn_client_proto_list != NULL)
2320 OPENSSL_free(a->alpn_client_proto_list);
2326 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2328 ctx->default_passwd_callback=cb;
2331 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
2333 ctx->default_passwd_callback_userdata=u;
2336 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
2338 ctx->app_verify_callback=cb;
2339 ctx->app_verify_arg=arg;
2342 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
2344 ctx->verify_mode=mode;
2345 ctx->default_verify_callback=cb;
2348 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
2350 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2353 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb)(SSL *ssl, void *arg), void *arg)
2355 ssl_cert_set_cert_cb(c->cert, cb, arg);
2358 void SSL_set_cert_cb(SSL *s, int (*cb)(SSL *ssl, void *arg), void *arg)
2360 ssl_cert_set_cert_cb(s->cert, cb, arg);
2363 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
2366 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
2367 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
2368 int rsa_tmp_export,dh_tmp_export,kl;
2369 unsigned long mask_k,mask_a,emask_k,emask_a;
2370 #ifndef OPENSSL_NO_ECDSA
2371 int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
2373 #ifndef OPENSSL_NO_ECDH
2374 int have_ecdh_tmp, ecdh_ok;
2376 #ifndef OPENSSL_NO_EC
2378 EVP_PKEY *ecc_pkey = NULL;
2379 int signature_nid = 0, pk_nid = 0, md_nid = 0;
2381 if (c == NULL) return;
2383 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
2385 #ifndef OPENSSL_NO_RSA
2386 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2387 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
2388 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
2390 rsa_tmp=rsa_tmp_export=0;
2392 #ifndef OPENSSL_NO_DH
2393 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
2394 dh_tmp_export=(c->dh_tmp_cb != NULL ||
2395 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
2397 dh_tmp=dh_tmp_export=0;
2400 #ifndef OPENSSL_NO_ECDH
2401 have_ecdh_tmp=(c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
2403 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
2404 rsa_enc= cpk->valid_flags & CERT_PKEY_VALID;
2405 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2406 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2407 rsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2408 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2409 dsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2410 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
2411 dh_rsa= cpk->valid_flags & CERT_PKEY_VALID;
2412 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2413 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
2414 /* FIX THIS EAY EAY EAY */
2415 dh_dsa= cpk->valid_flags & CERT_PKEY_VALID;
2416 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2417 cpk= &(c->pkeys[SSL_PKEY_ECC]);
2418 #ifndef OPENSSL_NO_EC
2419 have_ecc_cert= cpk->valid_flags & CERT_PKEY_VALID;
2429 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2430 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
2431 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
2434 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2435 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2436 mask_k |= SSL_kGOST;
2437 mask_a |= SSL_aGOST01;
2439 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2440 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2441 mask_k |= SSL_kGOST;
2442 mask_a |= SSL_aGOST94;
2445 if (rsa_enc || (rsa_tmp && rsa_sign))
2447 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2451 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2452 if ( (dh_tmp || dh_rsa || dh_dsa) &&
2453 (rsa_enc || rsa_sign || dsa_sign))
2455 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
2456 (rsa_enc || rsa_sign || dsa_sign))
2466 if (dh_rsa) mask_k|=SSL_kDHr;
2467 if (dh_rsa_export) emask_k|=SSL_kDHr;
2469 if (dh_dsa) mask_k|=SSL_kDHd;
2470 if (dh_dsa_export) emask_k|=SSL_kDHd;
2472 if (emask_k & (SSL_kDHr|SSL_kDHd))
2475 if (rsa_enc || rsa_sign)
2490 #ifndef OPENSSL_NO_KRB5
2497 /* An ECC certificate may be usable for ECDH and/or
2498 * ECDSA cipher suites depending on the key usage extension.
2500 #ifndef OPENSSL_NO_EC
2503 cpk = &c->pkeys[SSL_PKEY_ECC];
2505 /* This call populates extension flags (ex_flags) */
2506 X509_check_purpose(x, -1, 0);
2507 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2508 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2509 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2510 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2511 if (!(cpk->valid_flags & CERT_PKEY_SIGN))
2513 ecc_pkey = X509_get_pubkey(x);
2514 ecc_pkey_size = (ecc_pkey != NULL) ?
2515 EVP_PKEY_bits(ecc_pkey) : 0;
2516 EVP_PKEY_free(ecc_pkey);
2517 if ((x->sig_alg) && (x->sig_alg->algorithm))
2519 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2520 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2522 #ifndef OPENSSL_NO_ECDH
2526 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa)
2530 if (ecc_pkey_size <= 163)
2532 emask_k|=SSL_kECDHr;
2537 if (pk_nid == NID_X9_62_id_ecPublicKey)
2541 if (ecc_pkey_size <= 163)
2543 emask_k|=SSL_kECDHe;
2549 #ifndef OPENSSL_NO_ECDSA
2553 emask_a|=SSL_aECDSA;
2559 #ifndef OPENSSL_NO_ECDH
2563 emask_k|=SSL_kEECDH;
2567 #ifndef OPENSSL_NO_PSK
2570 emask_k |= SSL_kPSK;
2571 emask_a |= SSL_aPSK;
2576 c->export_mask_k=emask_k;
2577 c->export_mask_a=emask_a;
2581 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2582 #define ku_reject(x, usage) \
2583 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2585 #ifndef OPENSSL_NO_EC
2587 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2589 unsigned long alg_k, alg_a;
2590 EVP_PKEY *pkey = NULL;
2592 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2593 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2595 alg_k = cs->algorithm_mkey;
2596 alg_a = cs->algorithm_auth;
2598 if (SSL_C_IS_EXPORT(cs))
2600 /* ECDH key length in export ciphers must be <= 163 bits */
2601 pkey = X509_get_pubkey(x);
2602 if (pkey == NULL) return 0;
2603 keysize = EVP_PKEY_bits(pkey);
2604 EVP_PKEY_free(pkey);
2605 if (keysize > 163) return 0;
2608 /* This call populates the ex_flags field correctly */
2609 X509_check_purpose(x, -1, 0);
2610 if ((x->sig_alg) && (x->sig_alg->algorithm))
2612 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2613 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2615 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
2617 /* key usage, if present, must allow key agreement */
2618 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
2620 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2623 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION)
2625 /* signature alg must be ECDSA */
2626 if (pk_nid != NID_X9_62_id_ecPublicKey)
2628 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2632 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION)
2634 /* signature alg must be RSA */
2636 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa)
2638 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2643 if (alg_a & SSL_aECDSA)
2645 /* key usage, if present, must allow signing */
2646 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
2648 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2653 return 1; /* all checks are ok */
2658 static int ssl_get_server_cert_index(const SSL *s)
2661 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2662 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2663 idx = SSL_PKEY_RSA_SIGN;
2665 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX,ERR_R_INTERNAL_ERROR);
2669 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s)
2675 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2677 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2678 /* Broken protocol test: return last used certificate: which may
2679 * mismatch the one expected.
2681 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2685 i = ssl_get_server_cert_index(s);
2687 /* This may or may not be an error. */
2692 return &c->pkeys[i];
2695 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher, const EVP_MD **pmd)
2697 unsigned long alg_a;
2701 alg_a = cipher->algorithm_auth;
2704 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2705 /* Broken protocol test: use last key: which may
2706 * mismatch the one expected.
2708 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2709 idx = c->key - c->pkeys;
2713 if ((alg_a & SSL_aDSS) &&
2714 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2715 idx = SSL_PKEY_DSA_SIGN;
2716 else if (alg_a & SSL_aRSA)
2718 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2719 idx = SSL_PKEY_RSA_SIGN;
2720 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2721 idx = SSL_PKEY_RSA_ENC;
2723 else if ((alg_a & SSL_aECDSA) &&
2724 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2728 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2732 *pmd = c->pkeys[idx].digest;
2733 return c->pkeys[idx].privatekey;
2736 #ifndef OPENSSL_NO_TLSEXT
2737 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2738 size_t *serverinfo_length)
2742 *serverinfo_length = 0;
2745 i = ssl_get_server_cert_index(s);
2749 if (c->pkeys[i].serverinfo == NULL)
2752 *serverinfo = c->pkeys[i].serverinfo;
2753 *serverinfo_length = c->pkeys[i].serverinfo_length;
2758 void ssl_update_cache(SSL *s,int mode)
2762 /* If the session_id_length is 0, we are not supposed to cache it,
2763 * and it would be rather hard to do anyway :-) */
2764 if (s->session->session_id_length == 0) return;
2766 i=s->session_ctx->session_cache_mode;
2767 if ((i & mode) && (!s->hit)
2768 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2769 || SSL_CTX_add_session(s->session_ctx,s->session))
2770 && (s->session_ctx->new_session_cb != NULL))
2772 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2773 if (!s->session_ctx->new_session_cb(s,s->session))
2774 SSL_SESSION_free(s->session);
2777 /* auto flush every 255 connections */
2778 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2779 ((i & mode) == mode))
2781 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2782 ?s->session_ctx->stats.sess_connect_good
2783 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2785 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2790 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2795 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2800 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2805 if (s->method != meth)
2807 if (s->handshake_func != NULL)
2808 conn=(s->handshake_func == s->method->ssl_connect);
2810 if (s->method->version == meth->version)
2814 s->method->ssl_free(s);
2816 ret=s->method->ssl_new(s);
2820 s->handshake_func=meth->ssl_connect;
2822 s->handshake_func=meth->ssl_accept;
2827 int SSL_get_error(const SSL *s,int i)
2833 if (i > 0) return(SSL_ERROR_NONE);
2835 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2836 * etc, where we do encode the error */
2837 if ((l=ERR_peek_error()) != 0)
2839 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2840 return(SSL_ERROR_SYSCALL);
2842 return(SSL_ERROR_SSL);
2845 if ((i < 0) && SSL_want_read(s))
2847 bio=SSL_get_rbio(s);
2848 if (BIO_should_read(bio))
2849 return(SSL_ERROR_WANT_READ);
2850 else if (BIO_should_write(bio))
2851 /* This one doesn't make too much sense ... We never try
2852 * to write to the rbio, and an application program where
2853 * rbio and wbio are separate couldn't even know what it
2855 * However if we ever set s->rwstate incorrectly
2856 * (so that we have SSL_want_read(s) instead of
2857 * SSL_want_write(s)) and rbio and wbio *are* the same,
2858 * this test works around that bug; so it might be safer
2860 return(SSL_ERROR_WANT_WRITE);
2861 else if (BIO_should_io_special(bio))
2863 reason=BIO_get_retry_reason(bio);
2864 if (reason == BIO_RR_CONNECT)
2865 return(SSL_ERROR_WANT_CONNECT);
2866 else if (reason == BIO_RR_ACCEPT)
2867 return(SSL_ERROR_WANT_ACCEPT);
2869 return(SSL_ERROR_SYSCALL); /* unknown */
2873 if ((i < 0) && SSL_want_write(s))
2875 bio=SSL_get_wbio(s);
2876 if (BIO_should_write(bio))
2877 return(SSL_ERROR_WANT_WRITE);
2878 else if (BIO_should_read(bio))
2879 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2880 return(SSL_ERROR_WANT_READ);
2881 else if (BIO_should_io_special(bio))
2883 reason=BIO_get_retry_reason(bio);
2884 if (reason == BIO_RR_CONNECT)
2885 return(SSL_ERROR_WANT_CONNECT);
2886 else if (reason == BIO_RR_ACCEPT)
2887 return(SSL_ERROR_WANT_ACCEPT);
2889 return(SSL_ERROR_SYSCALL);
2892 if ((i < 0) && SSL_want_x509_lookup(s))
2894 return(SSL_ERROR_WANT_X509_LOOKUP);
2899 if (s->version == SSL2_VERSION)
2901 /* assume it is the socket being closed */
2902 return(SSL_ERROR_ZERO_RETURN);
2906 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2907 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2908 return(SSL_ERROR_ZERO_RETURN);
2911 return(SSL_ERROR_SYSCALL);
2914 int SSL_do_handshake(SSL *s)
2918 if (s->handshake_func == NULL)
2920 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2924 s->method->ssl_renegotiate_check(s);
2926 if (SSL_in_init(s) || SSL_in_before(s))
2928 ret=s->handshake_func(s);
2933 /* For the next 2 functions, SSL_clear() sets shutdown and so
2934 * one of these calls will reset it */
2935 void SSL_set_accept_state(SSL *s)
2939 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2940 s->handshake_func=s->method->ssl_accept;
2941 /* clear the current cipher */
2942 ssl_clear_cipher_ctx(s);
2943 ssl_clear_hash_ctx(&s->read_hash);
2944 ssl_clear_hash_ctx(&s->write_hash);
2947 void SSL_set_connect_state(SSL *s)
2951 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2952 s->handshake_func=s->method->ssl_connect;
2953 /* clear the current cipher */
2954 ssl_clear_cipher_ctx(s);
2955 ssl_clear_hash_ctx(&s->read_hash);
2956 ssl_clear_hash_ctx(&s->write_hash);
2959 int ssl_undefined_function(SSL *s)
2961 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2965 int ssl_undefined_void_function(void)
2967 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2971 int ssl_undefined_const_function(const SSL *s)
2973 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2977 SSL_METHOD *ssl_bad_method(int ver)
2979 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2983 const char *SSL_get_version(const SSL *s)
2985 if (s->version == TLS1_2_VERSION)
2987 else if (s->version == TLS1_1_VERSION)
2989 else if (s->version == TLS1_VERSION)
2991 else if (s->version == SSL3_VERSION)
2993 else if (s->version == SSL2_VERSION)
2999 SSL *SSL_dup(SSL *s)
3001 STACK_OF(X509_NAME) *sk;
3006 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
3009 ret->version = s->version;
3010 ret->type = s->type;
3011 ret->method = s->method;
3013 if (s->session != NULL)
3015 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
3016 SSL_copy_session_id(ret,s);
3020 /* No session has been established yet, so we have to expect
3021 * that s->cert or ret->cert will be changed later --
3022 * they should not both point to the same object,
3023 * and thus we can't use SSL_copy_session_id. */
3025 ret->method->ssl_free(ret);
3026 ret->method = s->method;
3027 ret->method->ssl_new(ret);
3029 if (s->cert != NULL)
3031 if (ret->cert != NULL)
3033 ssl_cert_free(ret->cert);
3035 ret->cert = ssl_cert_dup(s->cert);
3036 if (ret->cert == NULL)
3040 SSL_set_session_id_context(ret,
3041 s->sid_ctx, s->sid_ctx_length);
3044 ret->options=s->options;
3046 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
3047 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
3048 ret->msg_callback = s->msg_callback;
3049 ret->msg_callback_arg = s->msg_callback_arg;
3050 SSL_set_verify(ret,SSL_get_verify_mode(s),
3051 SSL_get_verify_callback(s));
3052 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
3053 ret->generate_session_id = s->generate_session_id;
3055 SSL_set_info_callback(ret,SSL_get_info_callback(s));
3057 ret->debug=s->debug;
3059 /* copy app data, a little dangerous perhaps */
3060 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
3063 /* setup rbio, and wbio */
3064 if (s->rbio != NULL)
3066 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
3069 if (s->wbio != NULL)
3071 if (s->wbio != s->rbio)
3073 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
3077 ret->wbio=ret->rbio;
3079 ret->rwstate = s->rwstate;
3080 ret->in_handshake = s->in_handshake;
3081 ret->handshake_func = s->handshake_func;
3082 ret->server = s->server;
3083 ret->renegotiate = s->renegotiate;
3084 ret->new_session = s->new_session;
3085 ret->quiet_shutdown = s->quiet_shutdown;
3086 ret->shutdown=s->shutdown;
3087 ret->state=s->state; /* SSL_dup does not really work at any state, though */
3088 ret->rstate=s->rstate;
3089 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
3092 X509_VERIFY_PARAM_inherit(ret->param, s->param);
3094 /* dup the cipher_list and cipher_list_by_id stacks */
3095 if (s->cipher_list != NULL)
3097 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
3100 if (s->cipher_list_by_id != NULL)
3101 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
3105 /* Dup the client_CA list */
3106 if (s->client_CA != NULL)
3108 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
3110 for (i=0; i<sk_X509_NAME_num(sk); i++)
3112 xn=sk_X509_NAME_value(sk,i);
3113 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
3124 if (ret != NULL) SSL_free(ret);
3130 void ssl_clear_cipher_ctx(SSL *s)
3132 if (s->enc_read_ctx != NULL)
3134 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
3135 OPENSSL_free(s->enc_read_ctx);
3136 s->enc_read_ctx=NULL;
3138 if (s->enc_write_ctx != NULL)
3140 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
3141 OPENSSL_free(s->enc_write_ctx);
3142 s->enc_write_ctx=NULL;
3144 #ifndef OPENSSL_NO_COMP
3145 if (s->expand != NULL)
3147 COMP_CTX_free(s->expand);
3150 if (s->compress != NULL)
3152 COMP_CTX_free(s->compress);
3158 X509 *SSL_get_certificate(const SSL *s)
3160 if (s->cert != NULL)
3161 return(s->cert->key->x509);
3166 EVP_PKEY *SSL_get_privatekey(const SSL *s)
3168 if (s->cert != NULL)
3169 return(s->cert->key->privatekey);
3174 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
3176 if (ctx->cert != NULL)
3177 return ctx->cert->key->x509;
3182 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
3184 if (ctx->cert != NULL)
3185 return ctx->cert->key->privatekey;
3190 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
3192 if ((s->session != NULL) && (s->session->cipher != NULL))
3193 return(s->session->cipher);
3196 #ifdef OPENSSL_NO_COMP
3197 const void *SSL_get_current_compression(SSL *s)
3201 const void *SSL_get_current_expansion(SSL *s)
3207 const COMP_METHOD *SSL_get_current_compression(SSL *s)
3209 if (s->compress != NULL)
3210 return(s->compress->meth);
3214 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
3216 if (s->expand != NULL)
3217 return(s->expand->meth);
3222 int ssl_init_wbio_buffer(SSL *s,int push)
3226 if (s->bbio == NULL)
3228 bbio=BIO_new(BIO_f_buffer());
3229 if (bbio == NULL) return(0);
3235 if (s->bbio == s->wbio)
3236 s->wbio=BIO_pop(s->wbio);
3238 (void)BIO_reset(bbio);
3239 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
3240 if (!BIO_set_read_buffer_size(bbio,1))
3242 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
3247 if (s->wbio != bbio)
3248 s->wbio=BIO_push(bbio,s->wbio);
3252 if (s->wbio == bbio)
3253 s->wbio=BIO_pop(bbio);
3258 void ssl_free_wbio_buffer(SSL *s)
3260 if (s->bbio == NULL) return;
3262 if (s->bbio == s->wbio)
3264 /* remove buffering */
3265 s->wbio=BIO_pop(s->wbio);
3266 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
3267 assert(s->wbio != NULL);
3274 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
3276 ctx->quiet_shutdown=mode;
3279 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
3281 return(ctx->quiet_shutdown);
3284 void SSL_set_quiet_shutdown(SSL *s,int mode)
3286 s->quiet_shutdown=mode;
3289 int SSL_get_quiet_shutdown(const SSL *s)
3291 return(s->quiet_shutdown);
3294 void SSL_set_shutdown(SSL *s,int mode)
3299 int SSL_get_shutdown(const SSL *s)
3301 return(s->shutdown);
3304 int SSL_version(const SSL *s)
3309 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
3314 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
3316 if (ssl->ctx == ctx)
3318 #ifndef OPENSSL_NO_TLSEXT
3320 ctx = ssl->initial_ctx;
3322 if (ssl->cert != NULL)
3323 ssl_cert_free(ssl->cert);
3324 ssl->cert = ssl_cert_dup(ctx->cert);
3325 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
3326 if (ssl->ctx != NULL)
3327 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3332 #ifndef OPENSSL_NO_STDIO
3333 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3335 return(X509_STORE_set_default_paths(ctx->cert_store));
3338 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3341 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
3345 void SSL_set_info_callback(SSL *ssl,
3346 void (*cb)(const SSL *ssl,int type,int val))
3348 ssl->info_callback=cb;
3351 /* One compiler (Diab DCC) doesn't like argument names in returned
3352 function pointer. */
3353 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
3355 return ssl->info_callback;
3358 int SSL_state(const SSL *ssl)
3363 void SSL_set_state(SSL *ssl, int state)
3368 void SSL_set_verify_result(SSL *ssl,long arg)
3370 ssl->verify_result=arg;
3373 long SSL_get_verify_result(const SSL *ssl)
3375 return(ssl->verify_result);
3378 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3379 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3381 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
3382 new_func, dup_func, free_func);
3385 int SSL_set_ex_data(SSL *s,int idx,void *arg)
3387 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3390 void *SSL_get_ex_data(const SSL *s,int idx)
3392 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3395 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3396 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3398 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3399 new_func, dup_func, free_func);
3402 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
3404 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3407 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
3409 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3417 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3419 return(ctx->cert_store);
3422 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
3424 if (ctx->cert_store != NULL)
3425 X509_STORE_free(ctx->cert_store);
3426 ctx->cert_store=store;
3429 int SSL_want(const SSL *s)
3435 * \brief Set the callback for generating temporary RSA keys.
3436 * \param ctx the SSL context.
3437 * \param cb the callback
3440 #ifndef OPENSSL_NO_RSA
3441 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
3445 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3448 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
3452 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3458 * \brief The RSA temporary key callback function.
3459 * \param ssl the SSL session.
3460 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3461 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3462 * of the required key in bits.
3463 * \return the temporary RSA key.
3464 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3467 RSA *cb(SSL *ssl,int is_export,int keylength)
3472 * \brief Set the callback for generating temporary DH keys.
3473 * \param ctx the SSL context.
3474 * \param dh the callback
3477 #ifndef OPENSSL_NO_DH
3478 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
3481 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3484 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
3487 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3491 #ifndef OPENSSL_NO_ECDH
3492 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3495 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3498 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3501 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3505 #ifndef OPENSSL_NO_PSK
3506 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3508 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3510 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3513 if (ctx->psk_identity_hint != NULL)
3514 OPENSSL_free(ctx->psk_identity_hint);
3515 if (identity_hint != NULL)
3517 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3518 if (ctx->psk_identity_hint == NULL)
3522 ctx->psk_identity_hint = NULL;
3526 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3531 if (s->session == NULL)
3532 return 1; /* session not created yet, ignored */
3534 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3536 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3539 if (s->session->psk_identity_hint != NULL)
3540 OPENSSL_free(s->session->psk_identity_hint);
3541 if (identity_hint != NULL)
3543 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3544 if (s->session->psk_identity_hint == NULL)
3548 s->session->psk_identity_hint = NULL;
3552 const char *SSL_get_psk_identity_hint(const SSL *s)
3554 if (s == NULL || s->session == NULL)
3556 return(s->session->psk_identity_hint);
3559 const char *SSL_get_psk_identity(const SSL *s)
3561 if (s == NULL || s->session == NULL)
3563 return(s->session->psk_identity);
3566 void SSL_set_psk_client_callback(SSL *s,
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 s->psk_client_callback = cb;
3574 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3575 unsigned int (*cb)(SSL *ssl, const char *hint,
3576 char *identity, unsigned int max_identity_len, unsigned char *psk,
3577 unsigned int max_psk_len))
3579 ctx->psk_client_callback = cb;
3582 void SSL_set_psk_server_callback(SSL *s,
3583 unsigned int (*cb)(SSL *ssl, const char *identity,
3584 unsigned char *psk, unsigned int max_psk_len))
3586 s->psk_server_callback = cb;
3589 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3590 unsigned int (*cb)(SSL *ssl, const char *identity,
3591 unsigned char *psk, unsigned int max_psk_len))
3593 ctx->psk_server_callback = cb;
3597 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))
3599 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3601 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))
3603 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3606 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3607 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
3608 * any. If EVP_MD pointer is passed, initializes ctx with this md
3609 * Returns newly allocated ctx;
3612 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
3614 ssl_clear_hash_ctx(hash);
3615 *hash = EVP_MD_CTX_create();
3616 if (md) EVP_DigestInit_ex(*hash,md,NULL);
3619 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3622 if (*hash) EVP_MD_CTX_destroy(*hash);
3626 void SSL_set_debug(SSL *s, int debug)
3631 int SSL_cache_hit(SSL *s)
3636 int SSL_is_server(SSL *s)
3641 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3642 #include "../crypto/bio/bss_file.c"
3645 IMPLEMENT_STACK_OF(SSL_CIPHER)
3646 IMPLEMENT_STACK_OF(SSL_COMP)
3647 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,