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 void SSL_certs_clear(SSL *s)
540 ssl_cert_clear_certs(s->cert);
543 void SSL_free(SSL *s)
550 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
558 fprintf(stderr,"SSL_free, bad reference count\n");
564 X509_VERIFY_PARAM_free(s->param);
566 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
570 /* If the buffering BIO is in place, pop it off */
571 if (s->bbio == s->wbio)
573 s->wbio=BIO_pop(s->wbio);
579 BIO_free_all(s->rbio);
580 if ((s->wbio != NULL) && (s->wbio != s->rbio))
581 BIO_free_all(s->wbio);
583 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
585 /* add extra stuff */
586 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
587 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
589 /* Make the next call work :-) */
590 if (s->session != NULL)
592 ssl_clear_bad_session(s);
593 SSL_SESSION_free(s->session);
596 ssl_clear_cipher_ctx(s);
597 ssl_clear_hash_ctx(&s->read_hash);
598 ssl_clear_hash_ctx(&s->write_hash);
600 if (s->cert != NULL) ssl_cert_free(s->cert);
601 /* Free up if allocated */
603 #ifndef OPENSSL_NO_TLSEXT
604 if (s->tlsext_hostname)
605 OPENSSL_free(s->tlsext_hostname);
606 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx);
607 #ifndef OPENSSL_NO_EC
608 if (s->tlsext_ecpointformatlist) OPENSSL_free(s->tlsext_ecpointformatlist);
609 if (s->tlsext_ellipticcurvelist) OPENSSL_free(s->tlsext_ellipticcurvelist);
610 #endif /* OPENSSL_NO_EC */
611 if (s->tlsext_opaque_prf_input) OPENSSL_free(s->tlsext_opaque_prf_input);
612 if (s->tlsext_ocsp_exts)
613 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
614 X509_EXTENSION_free);
615 if (s->tlsext_ocsp_ids)
616 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
617 if (s->tlsext_ocsp_resp)
618 OPENSSL_free(s->tlsext_ocsp_resp);
619 if (s->alpn_client_proto_list)
620 OPENSSL_free(s->alpn_client_proto_list);
623 if (s->client_CA != NULL)
624 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
626 if (s->method != NULL) s->method->ssl_free(s);
628 if (s->ctx) SSL_CTX_free(s->ctx);
630 #ifndef OPENSSL_NO_KRB5
631 if (s->kssl_ctx != NULL)
632 kssl_ctx_free(s->kssl_ctx);
633 #endif /* OPENSSL_NO_KRB5 */
635 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
636 if (s->next_proto_negotiated)
637 OPENSSL_free(s->next_proto_negotiated);
640 if (s->srtp_profiles)
641 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
643 #ifndef OPENSSL_NO_DANE
644 if (s->tlsa_record && s->tlsa_record!=(void *)-1)
645 OPENSSL_free(s->tlsa_record);
651 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
653 /* If the output buffering BIO is still in place, remove it
657 if (s->wbio == s->bbio)
659 s->wbio=s->wbio->next_bio;
660 s->bbio->next_bio=NULL;
663 if ((s->rbio != NULL) && (s->rbio != rbio))
664 BIO_free_all(s->rbio);
665 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
666 BIO_free_all(s->wbio);
671 BIO *SSL_get_rbio(const SSL *s)
674 BIO *SSL_get_wbio(const SSL *s)
677 int SSL_get_fd(const SSL *s)
679 return(SSL_get_rfd(s));
682 int SSL_get_rfd(const SSL *s)
688 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
694 int SSL_get_wfd(const SSL *s)
700 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
706 #ifndef OPENSSL_NO_SOCK
707 int SSL_set_fd(SSL *s,int fd)
712 bio=BIO_new(BIO_s_socket());
716 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
719 BIO_set_fd(bio,fd,BIO_NOCLOSE);
720 SSL_set_bio(s,bio,bio);
726 int SSL_set_wfd(SSL *s,int fd)
731 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
732 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
734 bio=BIO_new(BIO_s_socket());
737 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
738 BIO_set_fd(bio,fd,BIO_NOCLOSE);
739 SSL_set_bio(s,SSL_get_rbio(s),bio);
742 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
748 int SSL_set_rfd(SSL *s,int fd)
753 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
754 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
756 bio=BIO_new(BIO_s_socket());
760 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
763 BIO_set_fd(bio,fd,BIO_NOCLOSE);
764 SSL_set_bio(s,bio,SSL_get_wbio(s));
767 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
775 /* return length of latest Finished message we sent, copy to 'buf' */
776 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
782 ret = s->s3->tmp.finish_md_len;
785 memcpy(buf, s->s3->tmp.finish_md, count);
790 /* return length of latest Finished message we expected, copy to 'buf' */
791 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
797 ret = s->s3->tmp.peer_finish_md_len;
800 memcpy(buf, s->s3->tmp.peer_finish_md, count);
806 int SSL_get_verify_mode(const SSL *s)
808 return(s->verify_mode);
811 int SSL_get_verify_depth(const SSL *s)
813 return X509_VERIFY_PARAM_get_depth(s->param);
816 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
818 return(s->verify_callback);
821 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
823 return(ctx->verify_mode);
826 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
828 return X509_VERIFY_PARAM_get_depth(ctx->param);
831 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
833 return(ctx->default_verify_callback);
836 void SSL_set_verify(SSL *s,int mode,
837 int (*callback)(int ok,X509_STORE_CTX *ctx))
840 if (callback != NULL)
841 s->verify_callback=callback;
844 void SSL_set_verify_depth(SSL *s,int depth)
846 X509_VERIFY_PARAM_set_depth(s->param, depth);
849 void SSL_set_read_ahead(SSL *s,int yes)
854 int SSL_get_read_ahead(const SSL *s)
856 return(s->read_ahead);
859 int SSL_pending(const SSL *s)
861 /* SSL_pending cannot work properly if read-ahead is enabled
862 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
863 * and it is impossible to fix since SSL_pending cannot report
864 * errors that may be observed while scanning the new data.
865 * (Note that SSL_pending() is often used as a boolean value,
866 * so we'd better not return -1.)
868 return(s->method->ssl_pending(s));
871 X509 *SSL_get_peer_certificate(const SSL *s)
875 if ((s == NULL) || (s->session == NULL))
880 if (r == NULL) return(r);
882 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
887 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
891 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
894 r=s->session->sess_cert->cert_chain;
896 /* If we are a client, cert_chain includes the peer's own
897 * certificate; if we are a server, it does not. */
902 /* Now in theory, since the calling process own 't' it should be safe to
903 * modify. We need to be able to read f without being hassled */
904 void SSL_copy_session_id(SSL *t,const SSL *f)
908 /* Do we need to to SSL locking? */
909 SSL_set_session(t,SSL_get_session(f));
911 /* what if we are setup as SSLv2 but want to talk SSLv3 or
913 if (t->method != f->method)
915 t->method->ssl_free(t); /* cleanup current */
916 t->method=f->method; /* change method */
917 t->method->ssl_new(t); /* setup new */
923 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
928 if (tmp != NULL) ssl_cert_free(tmp);
929 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
932 /* Fix this so it checks all the valid key/cert options */
933 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
935 if ( (ctx == NULL) ||
936 (ctx->cert == NULL) ||
937 (ctx->cert->key->x509 == NULL))
939 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
942 if (ctx->cert->key->privatekey == NULL)
944 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
947 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
950 /* Fix this function so that it takes an optional type parameter */
951 int SSL_check_private_key(const SSL *ssl)
955 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
958 if (ssl->cert == NULL)
960 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
963 if (ssl->cert->key->x509 == NULL)
965 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
968 if (ssl->cert->key->privatekey == NULL)
970 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
973 return(X509_check_private_key(ssl->cert->key->x509,
974 ssl->cert->key->privatekey));
977 int SSL_accept(SSL *s)
979 if (s->handshake_func == 0)
980 /* Not properly initialized yet */
981 SSL_set_accept_state(s);
983 return(s->method->ssl_accept(s));
986 int SSL_connect(SSL *s)
988 if (s->handshake_func == 0)
989 /* Not properly initialized yet */
990 SSL_set_connect_state(s);
992 return(s->method->ssl_connect(s));
995 long SSL_get_default_timeout(const SSL *s)
997 return(s->method->get_timeout());
1000 int SSL_read(SSL *s,void *buf,int num)
1002 if (s->handshake_func == 0)
1004 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
1008 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
1010 s->rwstate=SSL_NOTHING;
1013 return(s->method->ssl_read(s,buf,num));
1016 int SSL_peek(SSL *s,void *buf,int num)
1018 if (s->handshake_func == 0)
1020 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
1024 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
1028 return(s->method->ssl_peek(s,buf,num));
1031 int SSL_write(SSL *s,const void *buf,int num)
1033 if (s->handshake_func == 0)
1035 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
1039 if (s->shutdown & SSL_SENT_SHUTDOWN)
1041 s->rwstate=SSL_NOTHING;
1042 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
1045 return(s->method->ssl_write(s,buf,num));
1048 int SSL_shutdown(SSL *s)
1050 /* Note that this function behaves differently from what one might
1051 * expect. Return values are 0 for no success (yet),
1052 * 1 for success; but calling it once is usually not enough,
1053 * even if blocking I/O is used (see ssl3_shutdown).
1056 if (s->handshake_func == 0)
1058 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1062 if ((s != NULL) && !SSL_in_init(s))
1063 return(s->method->ssl_shutdown(s));
1068 int SSL_renegotiate(SSL *s)
1070 if (s->renegotiate == 0)
1075 return(s->method->ssl_renegotiate(s));
1078 int SSL_renegotiate_abbreviated(SSL *s)
1080 if (s->renegotiate == 0)
1085 return(s->method->ssl_renegotiate(s));
1088 int SSL_renegotiate_pending(SSL *s)
1090 /* becomes true when negotiation is requested;
1091 * false again once a handshake has finished */
1092 return (s->renegotiate != 0);
1095 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
1101 case SSL_CTRL_GET_READ_AHEAD:
1102 return(s->read_ahead);
1103 case SSL_CTRL_SET_READ_AHEAD:
1108 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1109 s->msg_callback_arg = parg;
1112 case SSL_CTRL_OPTIONS:
1113 return(s->options|=larg);
1114 case SSL_CTRL_CLEAR_OPTIONS:
1115 return(s->options&=~larg);
1117 return(s->mode|=larg);
1118 case SSL_CTRL_CLEAR_MODE:
1119 return(s->mode &=~larg);
1120 case SSL_CTRL_GET_MAX_CERT_LIST:
1121 return(s->max_cert_list);
1122 case SSL_CTRL_SET_MAX_CERT_LIST:
1124 s->max_cert_list=larg;
1126 case SSL_CTRL_SET_MTU:
1127 #ifndef OPENSSL_NO_DTLS1
1128 if (larg < (long)dtls1_min_mtu())
1138 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1139 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1141 s->max_send_fragment = larg;
1143 case SSL_CTRL_GET_RI_SUPPORT:
1145 return s->s3->send_connection_binding;
1147 case SSL_CTRL_CERT_FLAGS:
1148 return(s->cert->cert_flags|=larg);
1149 case SSL_CTRL_CLEAR_CERT_FLAGS:
1150 return(s->cert->cert_flags &=~larg);
1152 case SSL_CTRL_GET_RAW_CIPHERLIST:
1155 if (s->cert->ciphers_raw == NULL)
1157 *(unsigned char **)parg = s->cert->ciphers_raw;
1158 return (int)s->cert->ciphers_rawlen;
1161 return ssl_put_cipher_by_char(s,NULL,NULL);
1162 #ifndef OPENSSL_NO_DANE
1163 case SSL_CTRL_PULL_TLSA_RECORD:
1164 parg = SSL_get_tlsa_record_byname (parg,larg,s->version<0xF000?1:0);
1165 /* yes, fall through */
1166 case SSL_CTRL_SET_TLSA_RECORD:
1167 s->tlsa_record = parg;
1171 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1175 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1179 case SSL_CTRL_SET_MSG_CALLBACK:
1180 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1184 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1188 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1190 return ctx->sessions;
1193 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1196 /* For some cases with ctx == NULL perform syntax checks */
1201 #ifndef OPENSSL_NO_EC
1202 case SSL_CTRL_SET_CURVES_LIST:
1203 return tls1_set_curves_list(NULL, NULL, parg);
1205 case SSL_CTRL_SET_SIGALGS_LIST:
1206 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1207 return tls1_set_sigalgs_list(NULL, parg, 0);
1215 case SSL_CTRL_GET_READ_AHEAD:
1216 return(ctx->read_ahead);
1217 case SSL_CTRL_SET_READ_AHEAD:
1219 ctx->read_ahead=larg;
1222 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1223 ctx->msg_callback_arg = parg;
1226 case SSL_CTRL_GET_MAX_CERT_LIST:
1227 return(ctx->max_cert_list);
1228 case SSL_CTRL_SET_MAX_CERT_LIST:
1229 l=ctx->max_cert_list;
1230 ctx->max_cert_list=larg;
1233 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1234 l=ctx->session_cache_size;
1235 ctx->session_cache_size=larg;
1237 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1238 return(ctx->session_cache_size);
1239 case SSL_CTRL_SET_SESS_CACHE_MODE:
1240 l=ctx->session_cache_mode;
1241 ctx->session_cache_mode=larg;
1243 case SSL_CTRL_GET_SESS_CACHE_MODE:
1244 return(ctx->session_cache_mode);
1246 case SSL_CTRL_SESS_NUMBER:
1247 return(lh_SSL_SESSION_num_items(ctx->sessions));
1248 case SSL_CTRL_SESS_CONNECT:
1249 return(ctx->stats.sess_connect);
1250 case SSL_CTRL_SESS_CONNECT_GOOD:
1251 return(ctx->stats.sess_connect_good);
1252 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1253 return(ctx->stats.sess_connect_renegotiate);
1254 case SSL_CTRL_SESS_ACCEPT:
1255 return(ctx->stats.sess_accept);
1256 case SSL_CTRL_SESS_ACCEPT_GOOD:
1257 return(ctx->stats.sess_accept_good);
1258 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1259 return(ctx->stats.sess_accept_renegotiate);
1260 case SSL_CTRL_SESS_HIT:
1261 return(ctx->stats.sess_hit);
1262 case SSL_CTRL_SESS_CB_HIT:
1263 return(ctx->stats.sess_cb_hit);
1264 case SSL_CTRL_SESS_MISSES:
1265 return(ctx->stats.sess_miss);
1266 case SSL_CTRL_SESS_TIMEOUTS:
1267 return(ctx->stats.sess_timeout);
1268 case SSL_CTRL_SESS_CACHE_FULL:
1269 return(ctx->stats.sess_cache_full);
1270 case SSL_CTRL_OPTIONS:
1271 return(ctx->options|=larg);
1272 case SSL_CTRL_CLEAR_OPTIONS:
1273 return(ctx->options&=~larg);
1275 return(ctx->mode|=larg);
1276 case SSL_CTRL_CLEAR_MODE:
1277 return(ctx->mode&=~larg);
1278 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1279 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1281 ctx->max_send_fragment = larg;
1283 case SSL_CTRL_CERT_FLAGS:
1284 return(ctx->cert->cert_flags|=larg);
1285 case SSL_CTRL_CLEAR_CERT_FLAGS:
1286 return(ctx->cert->cert_flags &=~larg);
1288 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1292 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1296 case SSL_CTRL_SET_MSG_CALLBACK:
1297 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1301 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1305 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1313 return((l > 0)?1:-1);
1316 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1317 const SSL_CIPHER * const *bp)
1321 l=(*ap)->id-(*bp)->id;
1325 return((l > 0)?1:-1);
1328 /** return a STACK of the ciphers available for the SSL and in order of
1330 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1334 if (s->cipher_list != NULL)
1336 return(s->cipher_list);
1338 else if ((s->ctx != NULL) &&
1339 (s->ctx->cipher_list != NULL))
1341 return(s->ctx->cipher_list);
1347 /** return a STACK of the ciphers available for the SSL and in order of
1349 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1353 if (s->cipher_list_by_id != NULL)
1355 return(s->cipher_list_by_id);
1357 else if ((s->ctx != NULL) &&
1358 (s->ctx->cipher_list_by_id != NULL))
1360 return(s->ctx->cipher_list_by_id);
1366 /** The old interface to get the same thing as SSL_get_ciphers() */
1367 const char *SSL_get_cipher_list(const SSL *s,int n)
1370 STACK_OF(SSL_CIPHER) *sk;
1372 if (s == NULL) return(NULL);
1373 sk=SSL_get_ciphers(s);
1374 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1376 c=sk_SSL_CIPHER_value(sk,n);
1377 if (c == NULL) return(NULL);
1381 /** specify the ciphers to be used by default by the SSL_CTX */
1382 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1384 STACK_OF(SSL_CIPHER) *sk;
1386 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1387 &ctx->cipher_list_by_id,str, ctx->cert);
1388 /* ssl_create_cipher_list may return an empty stack if it
1389 * was unable to find a cipher matching the given rule string
1390 * (for example if the rule string specifies a cipher which
1391 * has been disabled). This is not an error as far as
1392 * ssl_create_cipher_list is concerned, and hence
1393 * ctx->cipher_list and ctx->cipher_list_by_id has been
1397 else if (sk_SSL_CIPHER_num(sk) == 0)
1399 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1405 /** specify the ciphers to be used by the SSL */
1406 int SSL_set_cipher_list(SSL *s,const char *str)
1408 STACK_OF(SSL_CIPHER) *sk;
1410 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1411 &s->cipher_list_by_id,str, s->cert);
1412 /* see comment in SSL_CTX_set_cipher_list */
1415 else if (sk_SSL_CIPHER_num(sk) == 0)
1417 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1423 /* works well for SSLv2, not so good for SSLv3 */
1424 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1427 STACK_OF(SSL_CIPHER) *sk;
1431 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1436 sk=s->session->ciphers;
1437 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1441 c=sk_SSL_CIPHER_value(sk,i);
1459 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1460 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1466 int no_scsv = s->renegotiate;
1467 /* Set disabled masks for this session */
1468 ssl_set_client_disabled(s);
1470 if (sk == NULL) return(0);
1473 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1475 c=sk_SSL_CIPHER_value(sk,i);
1476 /* Skip disabled ciphers */
1477 if (c->algorithm_ssl & ct->mask_ssl ||
1478 c->algorithm_mkey & ct->mask_k ||
1479 c->algorithm_auth & ct->mask_a)
1481 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1482 if (c->id == SSL3_CK_SCSV)
1490 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1493 /* If p == q, no ciphers and caller indicates an error. Otherwise
1494 * add SCSV if not renegotiating.
1496 if (p != q && !no_scsv)
1498 static SSL_CIPHER scsv =
1500 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1502 j = put_cb ? put_cb(&scsv,p) : ssl_put_cipher_by_char(s,&scsv,p);
1504 #ifdef OPENSSL_RI_DEBUG
1505 fprintf(stderr, "SCSV sent by client\n");
1512 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1513 STACK_OF(SSL_CIPHER) **skp)
1515 const SSL_CIPHER *c;
1516 STACK_OF(SSL_CIPHER) *sk;
1519 s->s3->send_connection_binding = 0;
1521 n=ssl_put_cipher_by_char(s,NULL,NULL);
1524 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1527 if ((skp == NULL) || (*skp == NULL))
1528 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1532 sk_SSL_CIPHER_zero(sk);
1535 if (s->cert->ciphers_raw)
1536 OPENSSL_free(s->cert->ciphers_raw);
1537 s->cert->ciphers_raw = BUF_memdup(p, num);
1538 if (s->cert->ciphers_raw == NULL)
1540 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1543 s->cert->ciphers_rawlen = (size_t)num;
1545 for (i=0; i<num; i+=n)
1547 /* Check for SCSV */
1548 if (s->s3 && (n != 3 || !p[0]) &&
1549 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1550 (p[n-1] == (SSL3_CK_SCSV & 0xff)))
1552 /* SCSV fatal if renegotiating */
1555 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1556 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1559 s->s3->send_connection_binding = 1;
1561 #ifdef OPENSSL_RI_DEBUG
1562 fprintf(stderr, "SCSV received by server\n");
1567 c=ssl_get_cipher_by_char(s,p);
1571 if (!sk_SSL_CIPHER_push(sk,c))
1573 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1583 if ((skp == NULL) || (*skp == NULL))
1584 sk_SSL_CIPHER_free(sk);
1589 #ifndef OPENSSL_NO_TLSEXT
1590 /** return a servername extension value if provided in Client Hello, or NULL.
1591 * So far, only host_name types are defined (RFC 3546).
1594 const char *SSL_get_servername(const SSL *s, const int type)
1596 if (type != TLSEXT_NAMETYPE_host_name)
1599 return s->session && !s->tlsext_hostname ?
1600 s->session->tlsext_hostname :
1604 int SSL_get_servername_type(const SSL *s)
1606 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1607 return TLSEXT_NAMETYPE_host_name;
1611 # ifndef OPENSSL_NO_NEXTPROTONEG
1612 /* SSL_select_next_proto implements the standard protocol selection. It is
1613 * expected that this function is called from the callback set by
1614 * SSL_CTX_set_next_proto_select_cb.
1616 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
1617 * strings. The length byte itself is not included in the length. A byte
1618 * string of length 0 is invalid. No byte string may be truncated.
1620 * The current, but experimental algorithm for selecting the protocol is:
1622 * 1) If the server doesn't support NPN then this is indicated to the
1623 * callback. In this case, the client application has to abort the connection
1624 * or have a default application level protocol.
1626 * 2) If the server supports NPN, but advertises an empty list then the
1627 * client selects the first protcol in its list, but indicates via the
1628 * API that this fallback case was enacted.
1630 * 3) Otherwise, the client finds the first protocol in the server's list
1631 * that it supports and selects this protocol. This is because it's
1632 * assumed that the server has better information about which protocol
1633 * a client should use.
1635 * 4) If the client doesn't support any of the server's advertised
1636 * protocols, then this is treated the same as case 2.
1639 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or
1640 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1642 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)
1645 const unsigned char *result;
1646 int status = OPENSSL_NPN_UNSUPPORTED;
1648 /* For each protocol in server preference order, see if we support it. */
1649 for (i = 0; i < server_len; )
1651 for (j = 0; j < client_len; )
1653 if (server[i] == client[j] &&
1654 memcmp(&server[i+1], &client[j+1], server[i]) == 0)
1656 /* We found a match */
1657 result = &server[i];
1658 status = OPENSSL_NPN_NEGOTIATED;
1668 /* There's no overlap between our protocols and the server's list. */
1670 status = OPENSSL_NPN_NO_OVERLAP;
1673 *out = (unsigned char *) result + 1;
1674 *outlen = result[0];
1678 /* SSL_get0_next_proto_negotiated sets *data and *len to point to the client's
1679 * requested protocol for this connection and returns 0. If the client didn't
1680 * request any protocol, then *data is set to NULL.
1682 * Note that the client can request any protocol it chooses. The value returned
1683 * from this function need not be a member of the list of supported protocols
1684 * provided by the callback.
1686 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, unsigned *len)
1688 *data = s->next_proto_negotiated;
1692 *len = s->next_proto_negotiated_len;
1696 /* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a
1697 * TLS server needs a list of supported protocols for Next Protocol
1698 * Negotiation. The returned list must be in wire format. The list is returned
1699 * by setting |out| to point to it and |outlen| to its length. This memory will
1700 * not be modified, but one should assume that the SSL* keeps a reference to
1703 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. Otherwise, no
1704 * such extension will be included in the ServerHello. */
1705 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)
1707 ctx->next_protos_advertised_cb = cb;
1708 ctx->next_protos_advertised_cb_arg = arg;
1711 /* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1712 * client needs to select a protocol from the server's provided list. |out|
1713 * must be set to point to the selected protocol (which may be within |in|).
1714 * The length of the protocol name must be written into |outlen|. The server's
1715 * advertised protocols are provided in |in| and |inlen|. The callback can
1716 * assume that |in| is syntactically valid.
1718 * The client must select a protocol. It is fatal to the connection if this
1719 * callback returns a value other than SSL_TLSEXT_ERR_OK.
1721 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)
1723 ctx->next_proto_select_cb = cb;
1724 ctx->next_proto_select_cb_arg = arg;
1728 int SSL_CTX_set_custom_cli_ext(SSL_CTX *ctx, unsigned short ext_type,
1729 custom_cli_ext_first_cb_fn fn1,
1730 custom_cli_ext_second_cb_fn fn2, void* arg)
1733 custom_cli_ext_record* record;
1735 /* Check for duplicates */
1736 for (i=0; i < ctx->custom_cli_ext_records_count; i++)
1737 if (ext_type == ctx->custom_cli_ext_records[i].ext_type)
1740 ctx->custom_cli_ext_records = OPENSSL_realloc(ctx->custom_cli_ext_records,
1741 (ctx->custom_cli_ext_records_count + 1) *
1742 sizeof(custom_cli_ext_record));
1743 if (!ctx->custom_cli_ext_records) {
1744 ctx->custom_cli_ext_records_count = 0;
1747 ctx->custom_cli_ext_records_count++;
1748 record = &ctx->custom_cli_ext_records[ctx->custom_cli_ext_records_count - 1];
1749 record->ext_type = ext_type;
1756 int SSL_CTX_set_custom_srv_ext(SSL_CTX *ctx, unsigned short ext_type,
1757 custom_srv_ext_first_cb_fn fn1,
1758 custom_srv_ext_second_cb_fn fn2, void* arg)
1761 custom_srv_ext_record* record;
1763 /* Check for duplicates */
1764 for (i=0; i < ctx->custom_srv_ext_records_count; i++)
1765 if (ext_type == ctx->custom_srv_ext_records[i].ext_type)
1768 ctx->custom_srv_ext_records = OPENSSL_realloc(ctx->custom_srv_ext_records,
1769 (ctx->custom_srv_ext_records_count + 1) *
1770 sizeof(custom_srv_ext_record));
1771 if (!ctx->custom_srv_ext_records) {
1772 ctx->custom_srv_ext_records_count = 0;
1775 ctx->custom_srv_ext_records_count++;
1776 record = &ctx->custom_srv_ext_records[ctx->custom_srv_ext_records_count - 1];
1777 record->ext_type = ext_type;
1784 /* SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1785 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1786 * length-prefixed strings).
1788 * Returns 0 on success. */
1789 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char* protos,
1790 unsigned protos_len)
1792 if (ctx->alpn_client_proto_list)
1793 OPENSSL_free(ctx->alpn_client_proto_list);
1795 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1796 if (!ctx->alpn_client_proto_list)
1798 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
1799 ctx->alpn_client_proto_list_len = protos_len;
1804 /* SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1805 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1806 * length-prefixed strings).
1808 * Returns 0 on success. */
1809 int SSL_set_alpn_protos(SSL *ssl, const unsigned char* protos,
1810 unsigned protos_len)
1812 if (ssl->alpn_client_proto_list)
1813 OPENSSL_free(ssl->alpn_client_proto_list);
1815 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1816 if (!ssl->alpn_client_proto_list)
1818 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
1819 ssl->alpn_client_proto_list_len = protos_len;
1824 /* SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is called
1825 * during ClientHello processing in order to select an ALPN protocol from the
1826 * client's list of offered protocols. */
1827 void SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx,
1828 int (*cb) (SSL *ssl,
1829 const unsigned char **out,
1830 unsigned char *outlen,
1831 const unsigned char *in,
1836 ctx->alpn_select_cb = cb;
1837 ctx->alpn_select_cb_arg = arg;
1840 /* SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
1841 * On return it sets |*data| to point to |*len| bytes of protocol name (not
1842 * including the leading length-prefix byte). If the server didn't respond with
1843 * a negotiated protocol then |*len| will be zero. */
1844 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1849 *data = ssl->s3->alpn_selected;
1853 *len = ssl->s3->alpn_selected_len;
1855 #endif /* !OPENSSL_NO_TLSEXT */
1857 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1858 const char *label, size_t llen, const unsigned char *p, size_t plen,
1861 if (s->version < TLS1_VERSION)
1864 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1869 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1874 ((unsigned int) a->session_id[0] )|
1875 ((unsigned int) a->session_id[1]<< 8L)|
1876 ((unsigned long)a->session_id[2]<<16L)|
1877 ((unsigned long)a->session_id[3]<<24L);
1881 /* NB: If this function (or indeed the hash function which uses a sort of
1882 * coarser function than this one) is changed, ensure
1883 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1884 * able to construct an SSL_SESSION that will collide with any existing session
1885 * with a matching session ID. */
1886 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1888 if (a->ssl_version != b->ssl_version)
1890 if (a->session_id_length != b->session_id_length)
1892 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1895 /* These wrapper functions should remain rather than redeclaring
1896 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1897 * variable. The reason is that the functions aren't static, they're exposed via
1899 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1900 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1902 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1908 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1913 if (FIPS_mode() && (meth->version < TLS1_VERSION))
1915 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1920 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1922 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1925 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1929 memset(ret,0,sizeof(SSL_CTX));
1933 ret->cert_store=NULL;
1934 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1935 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1936 ret->session_cache_head=NULL;
1937 ret->session_cache_tail=NULL;
1939 /* We take the system default */
1940 ret->session_timeout=meth->get_timeout();
1942 ret->new_session_cb=0;
1943 ret->remove_session_cb=0;
1944 ret->get_session_cb=0;
1945 ret->generate_session_id=0;
1947 memset((char *)&ret->stats,0,sizeof(ret->stats));
1950 ret->quiet_shutdown=0;
1952 /* ret->cipher=NULL;*/
1953 /* ret->s2->challenge=NULL;
1954 ret->master_key=NULL;
1956 ret->s2->conn_id=NULL; */
1958 ret->info_callback=NULL;
1960 ret->app_verify_callback=0;
1961 ret->app_verify_arg=NULL;
1963 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1965 ret->msg_callback=0;
1966 ret->msg_callback_arg=NULL;
1967 ret->verify_mode=SSL_VERIFY_NONE;
1969 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1971 ret->sid_ctx_length=0;
1972 ret->default_verify_callback=NULL;
1973 if ((ret->cert=ssl_cert_new()) == NULL)
1976 ret->default_passwd_callback=0;
1977 ret->default_passwd_callback_userdata=NULL;
1978 ret->client_cert_cb=0;
1979 ret->app_gen_cookie_cb=0;
1980 ret->app_verify_cookie_cb=0;
1982 ret->sessions=lh_SSL_SESSION_new();
1983 if (ret->sessions == NULL) goto err;
1984 ret->cert_store=X509_STORE_new();
1985 if (ret->cert_store == NULL) goto err;
1987 ssl_create_cipher_list(ret->method,
1988 &ret->cipher_list,&ret->cipher_list_by_id,
1989 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, ret->cert);
1990 if (ret->cipher_list == NULL
1991 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1993 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1997 ret->param = X509_VERIFY_PARAM_new();
2001 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
2003 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
2006 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
2008 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
2011 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
2013 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
2017 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
2020 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
2022 ret->extra_certs=NULL;
2023 /* No compression for DTLS */
2024 if (meth->version != DTLS1_VERSION)
2025 ret->comp_methods=SSL_COMP_get_compression_methods();
2027 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
2029 #ifndef OPENSSL_NO_TLSEXT
2030 ret->tlsext_servername_callback = 0;
2031 ret->tlsext_servername_arg = NULL;
2032 /* Setup RFC4507 ticket keys */
2033 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
2034 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
2035 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
2036 ret->options |= SSL_OP_NO_TICKET;
2038 ret->tlsext_status_cb = 0;
2039 ret->tlsext_status_arg = NULL;
2041 # ifndef OPENSSL_NO_NEXTPROTONEG
2042 ret->next_protos_advertised_cb = 0;
2043 ret->next_proto_select_cb = 0;
2046 #ifndef OPENSSL_NO_PSK
2047 ret->psk_identity_hint=NULL;
2048 ret->psk_client_callback=NULL;
2049 ret->psk_server_callback=NULL;
2051 #ifndef OPENSSL_NO_SRP
2052 SSL_CTX_SRP_CTX_init(ret);
2054 ret->custom_cli_ext_records = NULL;
2055 ret->custom_cli_ext_records_count = 0;
2056 ret->custom_srv_ext_records = NULL;
2057 ret->custom_srv_ext_records_count = 0;
2058 #ifndef OPENSSL_NO_BUF_FREELISTS
2059 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
2060 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
2061 if (!ret->rbuf_freelist)
2063 ret->rbuf_freelist->chunklen = 0;
2064 ret->rbuf_freelist->len = 0;
2065 ret->rbuf_freelist->head = NULL;
2066 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
2067 if (!ret->wbuf_freelist)
2069 OPENSSL_free(ret->rbuf_freelist);
2072 ret->wbuf_freelist->chunklen = 0;
2073 ret->wbuf_freelist->len = 0;
2074 ret->wbuf_freelist->head = NULL;
2076 #ifndef OPENSSL_NO_ENGINE
2077 ret->client_cert_engine = NULL;
2078 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2079 #define eng_strx(x) #x
2080 #define eng_str(x) eng_strx(x)
2081 /* Use specific client engine automatically... ignore errors */
2084 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2088 ENGINE_load_builtin_engines();
2089 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2091 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
2096 /* Default is to connect to non-RI servers. When RI is more widely
2097 * deployed might change this.
2099 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
2103 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
2105 if (ret != NULL) SSL_CTX_free(ret);
2110 static void SSL_COMP_free(SSL_COMP *comp)
2111 { OPENSSL_free(comp); }
2114 #ifndef OPENSSL_NO_BUF_FREELISTS
2116 ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
2118 SSL3_BUF_FREELIST_ENTRY *ent, *next;
2119 for (ent = list->head; ent; ent = next)
2128 void SSL_CTX_free(SSL_CTX *a)
2132 if (a == NULL) return;
2134 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
2136 REF_PRINT("SSL_CTX",a);
2142 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
2148 X509_VERIFY_PARAM_free(a->param);
2151 * Free internal session cache. However: the remove_cb() may reference
2152 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2153 * after the sessions were flushed.
2154 * As the ex_data handling routines might also touch the session cache,
2155 * the most secure solution seems to be: empty (flush) the cache, then
2156 * free ex_data, then finally free the cache.
2157 * (See ticket [openssl.org #212].)
2159 if (a->sessions != NULL)
2160 SSL_CTX_flush_sessions(a,0);
2162 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
2164 if (a->sessions != NULL)
2165 lh_SSL_SESSION_free(a->sessions);
2167 if (a->cert_store != NULL)
2168 X509_STORE_free(a->cert_store);
2169 if (a->cipher_list != NULL)
2170 sk_SSL_CIPHER_free(a->cipher_list);
2171 if (a->cipher_list_by_id != NULL)
2172 sk_SSL_CIPHER_free(a->cipher_list_by_id);
2173 if (a->cert != NULL)
2174 ssl_cert_free(a->cert);
2175 if (a->client_CA != NULL)
2176 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
2177 if (a->extra_certs != NULL)
2178 sk_X509_pop_free(a->extra_certs,X509_free);
2179 #if 0 /* This should never be done, since it removes a global database */
2180 if (a->comp_methods != NULL)
2181 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
2183 a->comp_methods = NULL;
2186 if (a->srtp_profiles)
2187 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
2189 #ifndef OPENSSL_NO_PSK
2190 if (a->psk_identity_hint)
2191 OPENSSL_free(a->psk_identity_hint);
2193 #ifndef OPENSSL_NO_SRP
2194 SSL_CTX_SRP_CTX_free(a);
2196 #ifndef OPENSSL_NO_TLSEXT
2197 OPENSSL_free(a->custom_cli_ext_records);
2198 OPENSSL_free(a->custom_srv_ext_records);
2200 #ifndef OPENSSL_NO_ENGINE
2201 if (a->client_cert_engine)
2202 ENGINE_finish(a->client_cert_engine);
2205 #ifndef OPENSSL_NO_BUF_FREELISTS
2206 if (a->wbuf_freelist)
2207 ssl_buf_freelist_free(a->wbuf_freelist);
2208 if (a->rbuf_freelist)
2209 ssl_buf_freelist_free(a->rbuf_freelist);
2211 #ifndef OPENSSL_NO_TLSEXT
2212 # ifndef OPENSSL_NO_EC
2213 if (a->tlsext_ecpointformatlist)
2214 OPENSSL_free(a->tlsext_ecpointformatlist);
2215 if (a->tlsext_ellipticcurvelist)
2216 OPENSSL_free(a->tlsext_ellipticcurvelist);
2217 # endif /* OPENSSL_NO_EC */
2218 if (a->alpn_client_proto_list != NULL)
2219 OPENSSL_free(a->alpn_client_proto_list);
2225 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2227 ctx->default_passwd_callback=cb;
2230 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
2232 ctx->default_passwd_callback_userdata=u;
2235 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
2237 ctx->app_verify_callback=cb;
2238 ctx->app_verify_arg=arg;
2241 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
2243 ctx->verify_mode=mode;
2244 ctx->default_verify_callback=cb;
2247 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
2249 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2252 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb)(SSL *ssl, void *arg), void *arg)
2254 ssl_cert_set_cert_cb(c->cert, cb, arg);
2257 void SSL_set_cert_cb(SSL *s, int (*cb)(SSL *ssl, void *arg), void *arg)
2259 ssl_cert_set_cert_cb(s->cert, cb, arg);
2262 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
2265 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
2266 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
2267 int rsa_tmp_export,dh_tmp_export,kl;
2268 unsigned long mask_k,mask_a,emask_k,emask_a;
2269 #ifndef OPENSSL_NO_ECDSA
2270 int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
2272 #ifndef OPENSSL_NO_ECDH
2273 int have_ecdh_tmp, ecdh_ok;
2275 #ifndef OPENSSL_NO_EC
2277 EVP_PKEY *ecc_pkey = NULL;
2278 int signature_nid = 0, pk_nid = 0, md_nid = 0;
2280 if (c == NULL) return;
2282 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
2284 #ifndef OPENSSL_NO_RSA
2285 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2286 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
2287 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
2289 rsa_tmp=rsa_tmp_export=0;
2291 #ifndef OPENSSL_NO_DH
2292 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
2293 dh_tmp_export=(c->dh_tmp_cb != NULL ||
2294 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
2296 dh_tmp=dh_tmp_export=0;
2299 #ifndef OPENSSL_NO_ECDH
2300 have_ecdh_tmp=(c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
2302 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
2303 rsa_enc= cpk->valid_flags & CERT_PKEY_VALID;
2304 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2305 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2306 rsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2307 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2308 dsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
2309 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
2310 dh_rsa= cpk->valid_flags & CERT_PKEY_VALID;
2311 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2312 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
2313 /* FIX THIS EAY EAY EAY */
2314 dh_dsa= cpk->valid_flags & CERT_PKEY_VALID;
2315 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2316 cpk= &(c->pkeys[SSL_PKEY_ECC]);
2317 #ifndef OPENSSL_NO_EC
2318 have_ecc_cert= cpk->valid_flags & CERT_PKEY_VALID;
2328 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2329 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
2330 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
2333 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2334 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2335 mask_k |= SSL_kGOST;
2336 mask_a |= SSL_aGOST01;
2338 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2339 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2340 mask_k |= SSL_kGOST;
2341 mask_a |= SSL_aGOST94;
2344 if (rsa_enc || (rsa_tmp && rsa_sign))
2346 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2350 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2351 if ( (dh_tmp || dh_rsa || dh_dsa) &&
2352 (rsa_enc || rsa_sign || dsa_sign))
2354 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
2355 (rsa_enc || rsa_sign || dsa_sign))
2365 if (dh_rsa) mask_k|=SSL_kDHr;
2366 if (dh_rsa_export) emask_k|=SSL_kDHr;
2368 if (dh_dsa) mask_k|=SSL_kDHd;
2369 if (dh_dsa_export) emask_k|=SSL_kDHd;
2371 if (emask_k & (SSL_kDHr|SSL_kDHd))
2374 if (rsa_enc || rsa_sign)
2389 #ifndef OPENSSL_NO_KRB5
2396 /* An ECC certificate may be usable for ECDH and/or
2397 * ECDSA cipher suites depending on the key usage extension.
2399 #ifndef OPENSSL_NO_EC
2402 cpk = &c->pkeys[SSL_PKEY_ECC];
2404 /* This call populates extension flags (ex_flags) */
2405 X509_check_purpose(x, -1, 0);
2406 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2407 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2408 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2409 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2410 if (!(cpk->valid_flags & CERT_PKEY_SIGN))
2412 ecc_pkey = X509_get_pubkey(x);
2413 ecc_pkey_size = (ecc_pkey != NULL) ?
2414 EVP_PKEY_bits(ecc_pkey) : 0;
2415 EVP_PKEY_free(ecc_pkey);
2416 if ((x->sig_alg) && (x->sig_alg->algorithm))
2418 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2419 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2421 #ifndef OPENSSL_NO_ECDH
2425 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa)
2429 if (ecc_pkey_size <= 163)
2431 emask_k|=SSL_kECDHr;
2436 if (pk_nid == NID_X9_62_id_ecPublicKey)
2440 if (ecc_pkey_size <= 163)
2442 emask_k|=SSL_kECDHe;
2448 #ifndef OPENSSL_NO_ECDSA
2452 emask_a|=SSL_aECDSA;
2458 #ifndef OPENSSL_NO_ECDH
2462 emask_k|=SSL_kEECDH;
2466 #ifndef OPENSSL_NO_PSK
2469 emask_k |= SSL_kPSK;
2470 emask_a |= SSL_aPSK;
2475 c->export_mask_k=emask_k;
2476 c->export_mask_a=emask_a;
2480 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2481 #define ku_reject(x, usage) \
2482 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2484 #ifndef OPENSSL_NO_EC
2486 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2488 unsigned long alg_k, alg_a;
2489 EVP_PKEY *pkey = NULL;
2491 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2492 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2494 alg_k = cs->algorithm_mkey;
2495 alg_a = cs->algorithm_auth;
2497 if (SSL_C_IS_EXPORT(cs))
2499 /* ECDH key length in export ciphers must be <= 163 bits */
2500 pkey = X509_get_pubkey(x);
2501 if (pkey == NULL) return 0;
2502 keysize = EVP_PKEY_bits(pkey);
2503 EVP_PKEY_free(pkey);
2504 if (keysize > 163) return 0;
2507 /* This call populates the ex_flags field correctly */
2508 X509_check_purpose(x, -1, 0);
2509 if ((x->sig_alg) && (x->sig_alg->algorithm))
2511 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2512 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2514 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
2516 /* key usage, if present, must allow key agreement */
2517 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
2519 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2522 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION)
2524 /* signature alg must be ECDSA */
2525 if (pk_nid != NID_X9_62_id_ecPublicKey)
2527 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2531 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION)
2533 /* signature alg must be RSA */
2535 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa)
2537 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2542 if (alg_a & SSL_aECDSA)
2544 /* key usage, if present, must allow signing */
2545 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
2547 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2552 return 1; /* all checks are ok */
2557 static int ssl_get_server_cert_index(const SSL *s)
2560 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2561 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2562 idx = SSL_PKEY_RSA_SIGN;
2564 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX,ERR_R_INTERNAL_ERROR);
2568 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s)
2574 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2576 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2577 /* Broken protocol test: return last used certificate: which may
2578 * mismatch the one expected.
2580 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2584 i = ssl_get_server_cert_index(s);
2586 /* This may or may not be an error. */
2591 return &c->pkeys[i];
2594 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher, const EVP_MD **pmd)
2596 unsigned long alg_a;
2600 alg_a = cipher->algorithm_auth;
2603 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2604 /* Broken protocol test: use last key: which may
2605 * mismatch the one expected.
2607 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2608 idx = c->key - c->pkeys;
2612 if ((alg_a & SSL_aDSS) &&
2613 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2614 idx = SSL_PKEY_DSA_SIGN;
2615 else if (alg_a & SSL_aRSA)
2617 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2618 idx = SSL_PKEY_RSA_SIGN;
2619 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2620 idx = SSL_PKEY_RSA_ENC;
2622 else if ((alg_a & SSL_aECDSA) &&
2623 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2627 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2631 *pmd = c->pkeys[idx].digest;
2632 return c->pkeys[idx].privatekey;
2635 #ifndef OPENSSL_NO_TLSEXT
2636 unsigned char *ssl_get_authz_data(SSL *s, size_t *authz_length)
2642 i = ssl_get_server_cert_index(s);
2648 if (c->pkeys[i].authz == NULL)
2650 *authz_length = c->pkeys[i].authz_length;
2652 return c->pkeys[i].authz;
2655 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2656 size_t *serverinfo_length)
2660 *serverinfo_length = 0;
2663 i = ssl_get_server_cert_index(s);
2667 if (c->pkeys[i].serverinfo == NULL)
2670 *serverinfo = c->pkeys[i].serverinfo;
2671 *serverinfo_length = c->pkeys[i].serverinfo_length;
2676 void ssl_update_cache(SSL *s,int mode)
2680 /* If the session_id_length is 0, we are not supposed to cache it,
2681 * and it would be rather hard to do anyway :-) */
2682 if (s->session->session_id_length == 0) return;
2684 i=s->session_ctx->session_cache_mode;
2685 if ((i & mode) && (!s->hit)
2686 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2687 || SSL_CTX_add_session(s->session_ctx,s->session))
2688 && (s->session_ctx->new_session_cb != NULL))
2690 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2691 if (!s->session_ctx->new_session_cb(s,s->session))
2692 SSL_SESSION_free(s->session);
2695 /* auto flush every 255 connections */
2696 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2697 ((i & mode) == mode))
2699 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2700 ?s->session_ctx->stats.sess_connect_good
2701 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2703 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2708 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2713 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2718 if (s->method != meth)
2720 if (s->handshake_func != NULL)
2721 conn=(s->handshake_func == s->method->ssl_connect);
2723 if (s->method->version == meth->version)
2727 s->method->ssl_free(s);
2729 ret=s->method->ssl_new(s);
2733 s->handshake_func=meth->ssl_connect;
2735 s->handshake_func=meth->ssl_accept;
2740 int SSL_get_error(const SSL *s,int i)
2746 if (i > 0) return(SSL_ERROR_NONE);
2748 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2749 * etc, where we do encode the error */
2750 if ((l=ERR_peek_error()) != 0)
2752 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2753 return(SSL_ERROR_SYSCALL);
2755 return(SSL_ERROR_SSL);
2758 if ((i < 0) && SSL_want_read(s))
2760 bio=SSL_get_rbio(s);
2761 if (BIO_should_read(bio))
2762 return(SSL_ERROR_WANT_READ);
2763 else if (BIO_should_write(bio))
2764 /* This one doesn't make too much sense ... We never try
2765 * to write to the rbio, and an application program where
2766 * rbio and wbio are separate couldn't even know what it
2768 * However if we ever set s->rwstate incorrectly
2769 * (so that we have SSL_want_read(s) instead of
2770 * SSL_want_write(s)) and rbio and wbio *are* the same,
2771 * this test works around that bug; so it might be safer
2773 return(SSL_ERROR_WANT_WRITE);
2774 else if (BIO_should_io_special(bio))
2776 reason=BIO_get_retry_reason(bio);
2777 if (reason == BIO_RR_CONNECT)
2778 return(SSL_ERROR_WANT_CONNECT);
2779 else if (reason == BIO_RR_ACCEPT)
2780 return(SSL_ERROR_WANT_ACCEPT);
2782 return(SSL_ERROR_SYSCALL); /* unknown */
2786 if ((i < 0) && SSL_want_write(s))
2788 bio=SSL_get_wbio(s);
2789 if (BIO_should_write(bio))
2790 return(SSL_ERROR_WANT_WRITE);
2791 else if (BIO_should_read(bio))
2792 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2793 return(SSL_ERROR_WANT_READ);
2794 else if (BIO_should_io_special(bio))
2796 reason=BIO_get_retry_reason(bio);
2797 if (reason == BIO_RR_CONNECT)
2798 return(SSL_ERROR_WANT_CONNECT);
2799 else if (reason == BIO_RR_ACCEPT)
2800 return(SSL_ERROR_WANT_ACCEPT);
2802 return(SSL_ERROR_SYSCALL);
2805 if ((i < 0) && SSL_want_x509_lookup(s))
2807 return(SSL_ERROR_WANT_X509_LOOKUP);
2812 if (s->version == SSL2_VERSION)
2814 /* assume it is the socket being closed */
2815 return(SSL_ERROR_ZERO_RETURN);
2819 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2820 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2821 return(SSL_ERROR_ZERO_RETURN);
2824 return(SSL_ERROR_SYSCALL);
2827 int SSL_do_handshake(SSL *s)
2831 if (s->handshake_func == NULL)
2833 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2837 s->method->ssl_renegotiate_check(s);
2839 if (SSL_in_init(s) || SSL_in_before(s))
2841 ret=s->handshake_func(s);
2846 /* For the next 2 functions, SSL_clear() sets shutdown and so
2847 * one of these calls will reset it */
2848 void SSL_set_accept_state(SSL *s)
2852 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2853 s->handshake_func=s->method->ssl_accept;
2854 /* clear the current cipher */
2855 ssl_clear_cipher_ctx(s);
2856 ssl_clear_hash_ctx(&s->read_hash);
2857 ssl_clear_hash_ctx(&s->write_hash);
2860 void SSL_set_connect_state(SSL *s)
2864 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2865 s->handshake_func=s->method->ssl_connect;
2866 /* clear the current cipher */
2867 ssl_clear_cipher_ctx(s);
2868 ssl_clear_hash_ctx(&s->read_hash);
2869 ssl_clear_hash_ctx(&s->write_hash);
2872 int ssl_undefined_function(SSL *s)
2874 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2878 int ssl_undefined_void_function(void)
2880 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2884 int ssl_undefined_const_function(const SSL *s)
2886 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2890 SSL_METHOD *ssl_bad_method(int ver)
2892 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2896 const char *SSL_get_version(const SSL *s)
2898 if (s->version == TLS1_2_VERSION)
2900 else if (s->version == TLS1_1_VERSION)
2902 else if (s->version == TLS1_VERSION)
2904 else if (s->version == SSL3_VERSION)
2906 else if (s->version == SSL2_VERSION)
2912 SSL *SSL_dup(SSL *s)
2914 STACK_OF(X509_NAME) *sk;
2919 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2922 ret->version = s->version;
2923 ret->type = s->type;
2924 ret->method = s->method;
2926 if (s->session != NULL)
2928 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2929 SSL_copy_session_id(ret,s);
2933 /* No session has been established yet, so we have to expect
2934 * that s->cert or ret->cert will be changed later --
2935 * they should not both point to the same object,
2936 * and thus we can't use SSL_copy_session_id. */
2938 ret->method->ssl_free(ret);
2939 ret->method = s->method;
2940 ret->method->ssl_new(ret);
2942 if (s->cert != NULL)
2944 if (ret->cert != NULL)
2946 ssl_cert_free(ret->cert);
2948 ret->cert = ssl_cert_dup(s->cert);
2949 if (ret->cert == NULL)
2953 SSL_set_session_id_context(ret,
2954 s->sid_ctx, s->sid_ctx_length);
2957 ret->options=s->options;
2959 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2960 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2961 ret->msg_callback = s->msg_callback;
2962 ret->msg_callback_arg = s->msg_callback_arg;
2963 SSL_set_verify(ret,SSL_get_verify_mode(s),
2964 SSL_get_verify_callback(s));
2965 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2966 ret->generate_session_id = s->generate_session_id;
2968 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2970 ret->debug=s->debug;
2972 /* copy app data, a little dangerous perhaps */
2973 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2976 /* setup rbio, and wbio */
2977 if (s->rbio != NULL)
2979 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2982 if (s->wbio != NULL)
2984 if (s->wbio != s->rbio)
2986 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2990 ret->wbio=ret->rbio;
2992 ret->rwstate = s->rwstate;
2993 ret->in_handshake = s->in_handshake;
2994 ret->handshake_func = s->handshake_func;
2995 ret->server = s->server;
2996 ret->renegotiate = s->renegotiate;
2997 ret->new_session = s->new_session;
2998 ret->quiet_shutdown = s->quiet_shutdown;
2999 ret->shutdown=s->shutdown;
3000 ret->state=s->state; /* SSL_dup does not really work at any state, though */
3001 ret->rstate=s->rstate;
3002 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
3005 X509_VERIFY_PARAM_inherit(ret->param, s->param);
3007 /* dup the cipher_list and cipher_list_by_id stacks */
3008 if (s->cipher_list != NULL)
3010 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
3013 if (s->cipher_list_by_id != NULL)
3014 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
3018 /* Dup the client_CA list */
3019 if (s->client_CA != NULL)
3021 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
3023 for (i=0; i<sk_X509_NAME_num(sk); i++)
3025 xn=sk_X509_NAME_value(sk,i);
3026 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
3037 if (ret != NULL) SSL_free(ret);
3043 void ssl_clear_cipher_ctx(SSL *s)
3045 if (s->enc_read_ctx != NULL)
3047 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
3048 OPENSSL_free(s->enc_read_ctx);
3049 s->enc_read_ctx=NULL;
3051 if (s->enc_write_ctx != NULL)
3053 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
3054 OPENSSL_free(s->enc_write_ctx);
3055 s->enc_write_ctx=NULL;
3057 #ifndef OPENSSL_NO_COMP
3058 if (s->expand != NULL)
3060 COMP_CTX_free(s->expand);
3063 if (s->compress != NULL)
3065 COMP_CTX_free(s->compress);
3071 /* Fix this function so that it takes an optional type parameter */
3072 X509 *SSL_get_certificate(const SSL *s)
3074 if (s->cert != NULL)
3075 return(s->cert->key->x509);
3080 /* Fix this function so that it takes an optional type parameter */
3081 EVP_PKEY *SSL_get_privatekey(SSL *s)
3083 if (s->cert != NULL)
3084 return(s->cert->key->privatekey);
3089 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
3091 if ((s->session != NULL) && (s->session->cipher != NULL))
3092 return(s->session->cipher);
3095 #ifdef OPENSSL_NO_COMP
3096 const void *SSL_get_current_compression(SSL *s)
3100 const void *SSL_get_current_expansion(SSL *s)
3106 const COMP_METHOD *SSL_get_current_compression(SSL *s)
3108 if (s->compress != NULL)
3109 return(s->compress->meth);
3113 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
3115 if (s->expand != NULL)
3116 return(s->expand->meth);
3121 int ssl_init_wbio_buffer(SSL *s,int push)
3125 if (s->bbio == NULL)
3127 bbio=BIO_new(BIO_f_buffer());
3128 if (bbio == NULL) return(0);
3134 if (s->bbio == s->wbio)
3135 s->wbio=BIO_pop(s->wbio);
3137 (void)BIO_reset(bbio);
3138 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
3139 if (!BIO_set_read_buffer_size(bbio,1))
3141 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
3146 if (s->wbio != bbio)
3147 s->wbio=BIO_push(bbio,s->wbio);
3151 if (s->wbio == bbio)
3152 s->wbio=BIO_pop(bbio);
3157 void ssl_free_wbio_buffer(SSL *s)
3159 if (s->bbio == NULL) return;
3161 if (s->bbio == s->wbio)
3163 /* remove buffering */
3164 s->wbio=BIO_pop(s->wbio);
3165 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
3166 assert(s->wbio != NULL);
3173 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
3175 ctx->quiet_shutdown=mode;
3178 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
3180 return(ctx->quiet_shutdown);
3183 void SSL_set_quiet_shutdown(SSL *s,int mode)
3185 s->quiet_shutdown=mode;
3188 int SSL_get_quiet_shutdown(const SSL *s)
3190 return(s->quiet_shutdown);
3193 void SSL_set_shutdown(SSL *s,int mode)
3198 int SSL_get_shutdown(const SSL *s)
3200 return(s->shutdown);
3203 int SSL_version(const SSL *s)
3208 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
3213 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
3215 if (ssl->ctx == ctx)
3217 #ifndef OPENSSL_NO_TLSEXT
3219 ctx = ssl->initial_ctx;
3221 if (ssl->cert != NULL)
3222 ssl_cert_free(ssl->cert);
3223 ssl->cert = ssl_cert_dup(ctx->cert);
3224 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
3225 if (ssl->ctx != NULL)
3226 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3231 #ifndef OPENSSL_NO_STDIO
3232 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3234 return(X509_STORE_set_default_paths(ctx->cert_store));
3237 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3240 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
3244 void SSL_set_info_callback(SSL *ssl,
3245 void (*cb)(const SSL *ssl,int type,int val))
3247 ssl->info_callback=cb;
3250 /* One compiler (Diab DCC) doesn't like argument names in returned
3251 function pointer. */
3252 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
3254 return ssl->info_callback;
3257 int SSL_state(const SSL *ssl)
3262 void SSL_set_state(SSL *ssl, int state)
3267 void SSL_set_verify_result(SSL *ssl,long arg)
3269 ssl->verify_result=arg;
3272 long SSL_get_verify_result(const SSL *ssl)
3274 return(ssl->verify_result);
3277 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3278 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3280 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
3281 new_func, dup_func, free_func);
3284 int SSL_set_ex_data(SSL *s,int idx,void *arg)
3286 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3289 void *SSL_get_ex_data(const SSL *s,int idx)
3291 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3294 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3295 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3297 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3298 new_func, dup_func, free_func);
3301 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
3303 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3306 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
3308 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3316 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3318 return(ctx->cert_store);
3321 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
3323 if (ctx->cert_store != NULL)
3324 X509_STORE_free(ctx->cert_store);
3325 ctx->cert_store=store;
3328 int SSL_want(const SSL *s)
3334 * \brief Set the callback for generating temporary RSA keys.
3335 * \param ctx the SSL context.
3336 * \param cb the callback
3339 #ifndef OPENSSL_NO_RSA
3340 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
3344 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3347 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
3351 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3357 * \brief The RSA temporary key callback function.
3358 * \param ssl the SSL session.
3359 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3360 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3361 * of the required key in bits.
3362 * \return the temporary RSA key.
3363 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3366 RSA *cb(SSL *ssl,int is_export,int keylength)
3371 * \brief Set the callback for generating temporary DH keys.
3372 * \param ctx the SSL context.
3373 * \param dh the callback
3376 #ifndef OPENSSL_NO_DH
3377 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
3380 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3383 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
3386 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3390 #ifndef OPENSSL_NO_ECDH
3391 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3394 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3397 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3400 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3404 #ifndef OPENSSL_NO_PSK
3405 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3407 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3409 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3412 if (ctx->psk_identity_hint != NULL)
3413 OPENSSL_free(ctx->psk_identity_hint);
3414 if (identity_hint != NULL)
3416 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3417 if (ctx->psk_identity_hint == NULL)
3421 ctx->psk_identity_hint = NULL;
3425 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3430 if (s->session == NULL)
3431 return 1; /* session not created yet, ignored */
3433 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3435 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3438 if (s->session->psk_identity_hint != NULL)
3439 OPENSSL_free(s->session->psk_identity_hint);
3440 if (identity_hint != NULL)
3442 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3443 if (s->session->psk_identity_hint == NULL)
3447 s->session->psk_identity_hint = NULL;
3451 const char *SSL_get_psk_identity_hint(const SSL *s)
3453 if (s == NULL || s->session == NULL)
3455 return(s->session->psk_identity_hint);
3458 const char *SSL_get_psk_identity(const SSL *s)
3460 if (s == NULL || s->session == NULL)
3462 return(s->session->psk_identity);
3465 void SSL_set_psk_client_callback(SSL *s,
3466 unsigned int (*cb)(SSL *ssl, const char *hint,
3467 char *identity, unsigned int max_identity_len, unsigned char *psk,
3468 unsigned int max_psk_len))
3470 s->psk_client_callback = cb;
3473 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3474 unsigned int (*cb)(SSL *ssl, const char *hint,
3475 char *identity, unsigned int max_identity_len, unsigned char *psk,
3476 unsigned int max_psk_len))
3478 ctx->psk_client_callback = cb;
3481 void SSL_set_psk_server_callback(SSL *s,
3482 unsigned int (*cb)(SSL *ssl, const char *identity,
3483 unsigned char *psk, unsigned int max_psk_len))
3485 s->psk_server_callback = cb;
3488 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3489 unsigned int (*cb)(SSL *ssl, const char *identity,
3490 unsigned char *psk, unsigned int max_psk_len))
3492 ctx->psk_server_callback = cb;
3496 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))
3498 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3500 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))
3502 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3505 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3506 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
3507 * any. If EVP_MD pointer is passed, initializes ctx with this md
3508 * Returns newly allocated ctx;
3511 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
3513 ssl_clear_hash_ctx(hash);
3514 *hash = EVP_MD_CTX_create();
3515 if (md) EVP_DigestInit_ex(*hash,md,NULL);
3518 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3521 if (*hash) EVP_MD_CTX_destroy(*hash);
3525 void SSL_set_debug(SSL *s, int debug)
3530 int SSL_cache_hit(SSL *s)
3535 int SSL_is_server(SSL *s)
3540 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3541 #include "../crypto/bio/bss_file.c"
3544 IMPLEMENT_STACK_OF(SSL_CIPHER)
3545 IMPLEMENT_STACK_OF(SSL_COMP)
3546 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,