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);
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_NEXTPROTONEG
360 s->next_proto_negotiated = NULL;
364 s->verify_result=X509_V_OK;
366 s->method=ctx->method;
368 if (!s->method->ssl_new(s))
372 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
376 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
378 #ifndef OPENSSL_NO_PSK
379 s->psk_client_callback=ctx->psk_client_callback;
380 s->psk_server_callback=ctx->psk_server_callback;
388 ssl_cert_free(s->cert);
390 SSL_CTX_free(s->ctx); /* decrement reference count */
393 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
397 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
398 unsigned int sid_ctx_len)
400 if(sid_ctx_len > sizeof ctx->sid_ctx)
402 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
405 ctx->sid_ctx_length=sid_ctx_len;
406 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
411 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
412 unsigned int sid_ctx_len)
414 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
416 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
419 ssl->sid_ctx_length=sid_ctx_len;
420 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
425 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
427 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
428 ctx->generate_session_id = cb;
429 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
433 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
435 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
436 ssl->generate_session_id = cb;
437 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
441 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
444 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
445 * we can "construct" a session to give us the desired check - ie. to
446 * find if there's a session in the hash table that would conflict with
447 * any new session built out of this id/id_len and the ssl_version in
448 * use by this SSL. */
451 if(id_len > sizeof r.session_id)
454 r.ssl_version = ssl->version;
455 r.session_id_length = id_len;
456 memcpy(r.session_id, id, id_len);
457 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
458 * callback is calling us to check the uniqueness of a shorter ID, it
459 * must be compared as a padded-out ID because that is what it will be
460 * converted to when the callback has finished choosing it. */
461 if((r.ssl_version == SSL2_VERSION) &&
462 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
464 memset(r.session_id + id_len, 0,
465 SSL2_SSL_SESSION_ID_LENGTH - id_len);
466 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
469 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
470 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
471 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
475 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
477 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
480 int SSL_set_purpose(SSL *s, int purpose)
482 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
485 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
487 return X509_VERIFY_PARAM_set_trust(s->param, trust);
490 int SSL_set_trust(SSL *s, int trust)
492 return X509_VERIFY_PARAM_set_trust(s->param, trust);
495 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
497 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
500 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
502 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
505 void SSL_free(SSL *s)
512 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
520 fprintf(stderr,"SSL_free, bad reference count\n");
526 X509_VERIFY_PARAM_free(s->param);
528 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
532 /* If the buffering BIO is in place, pop it off */
533 if (s->bbio == s->wbio)
535 s->wbio=BIO_pop(s->wbio);
541 BIO_free_all(s->rbio);
542 if ((s->wbio != NULL) && (s->wbio != s->rbio))
543 BIO_free_all(s->wbio);
545 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
547 /* add extra stuff */
548 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
549 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
551 /* Make the next call work :-) */
552 if (s->session != NULL)
554 ssl_clear_bad_session(s);
555 SSL_SESSION_free(s->session);
558 ssl_clear_cipher_ctx(s);
559 ssl_clear_hash_ctx(&s->read_hash);
560 ssl_clear_hash_ctx(&s->write_hash);
562 if (s->cert != NULL) ssl_cert_free(s->cert);
563 /* Free up if allocated */
565 #ifndef OPENSSL_NO_TLSEXT
566 if (s->tlsext_hostname)
567 OPENSSL_free(s->tlsext_hostname);
568 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx);
569 #ifndef OPENSSL_NO_EC
570 if (s->tlsext_ecpointformatlist) OPENSSL_free(s->tlsext_ecpointformatlist);
571 if (s->tlsext_ellipticcurvelist) OPENSSL_free(s->tlsext_ellipticcurvelist);
572 #endif /* OPENSSL_NO_EC */
573 if (s->tlsext_opaque_prf_input) OPENSSL_free(s->tlsext_opaque_prf_input);
574 if (s->tlsext_ocsp_exts)
575 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
576 X509_EXTENSION_free);
577 if (s->tlsext_ocsp_ids)
578 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
579 if (s->tlsext_ocsp_resp)
580 OPENSSL_free(s->tlsext_ocsp_resp);
583 if (s->client_CA != NULL)
584 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
586 if (s->method != NULL) s->method->ssl_free(s);
588 if (s->ctx) SSL_CTX_free(s->ctx);
590 #ifndef OPENSSL_NO_KRB5
591 if (s->kssl_ctx != NULL)
592 kssl_ctx_free(s->kssl_ctx);
593 #endif /* OPENSSL_NO_KRB5 */
595 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
596 if (s->next_proto_negotiated)
597 OPENSSL_free(s->next_proto_negotiated);
600 if (s->srtp_profiles)
601 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
606 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
608 /* If the output buffering BIO is still in place, remove it
612 if (s->wbio == s->bbio)
614 s->wbio=s->wbio->next_bio;
615 s->bbio->next_bio=NULL;
618 if ((s->rbio != NULL) && (s->rbio != rbio))
619 BIO_free_all(s->rbio);
620 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
621 BIO_free_all(s->wbio);
626 BIO *SSL_get_rbio(const SSL *s)
629 BIO *SSL_get_wbio(const SSL *s)
632 int SSL_get_fd(const SSL *s)
634 return(SSL_get_rfd(s));
637 int SSL_get_rfd(const SSL *s)
643 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
649 int SSL_get_wfd(const SSL *s)
655 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
661 #ifndef OPENSSL_NO_SOCK
662 int SSL_set_fd(SSL *s,int fd)
667 bio=BIO_new(BIO_s_socket());
671 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
674 BIO_set_fd(bio,fd,BIO_NOCLOSE);
675 SSL_set_bio(s,bio,bio);
681 int SSL_set_wfd(SSL *s,int fd)
686 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
687 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
689 bio=BIO_new(BIO_s_socket());
692 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
693 BIO_set_fd(bio,fd,BIO_NOCLOSE);
694 SSL_set_bio(s,SSL_get_rbio(s),bio);
697 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
703 int SSL_set_rfd(SSL *s,int fd)
708 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
709 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
711 bio=BIO_new(BIO_s_socket());
715 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
718 BIO_set_fd(bio,fd,BIO_NOCLOSE);
719 SSL_set_bio(s,bio,SSL_get_wbio(s));
722 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
730 /* return length of latest Finished message we sent, copy to 'buf' */
731 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
737 ret = s->s3->tmp.finish_md_len;
740 memcpy(buf, s->s3->tmp.finish_md, count);
745 /* return length of latest Finished message we expected, copy to 'buf' */
746 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
752 ret = s->s3->tmp.peer_finish_md_len;
755 memcpy(buf, s->s3->tmp.peer_finish_md, count);
761 int SSL_get_verify_mode(const SSL *s)
763 return(s->verify_mode);
766 int SSL_get_verify_depth(const SSL *s)
768 return X509_VERIFY_PARAM_get_depth(s->param);
771 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
773 return(s->verify_callback);
776 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
778 return(ctx->verify_mode);
781 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
783 return X509_VERIFY_PARAM_get_depth(ctx->param);
786 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
788 return(ctx->default_verify_callback);
791 void SSL_set_verify(SSL *s,int mode,
792 int (*callback)(int ok,X509_STORE_CTX *ctx))
795 if (callback != NULL)
796 s->verify_callback=callback;
799 void SSL_set_verify_depth(SSL *s,int depth)
801 X509_VERIFY_PARAM_set_depth(s->param, depth);
804 void SSL_set_read_ahead(SSL *s,int yes)
809 int SSL_get_read_ahead(const SSL *s)
811 return(s->read_ahead);
814 int SSL_pending(const SSL *s)
816 /* SSL_pending cannot work properly if read-ahead is enabled
817 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
818 * and it is impossible to fix since SSL_pending cannot report
819 * errors that may be observed while scanning the new data.
820 * (Note that SSL_pending() is often used as a boolean value,
821 * so we'd better not return -1.)
823 return(s->method->ssl_pending(s));
826 X509 *SSL_get_peer_certificate(const SSL *s)
830 if ((s == NULL) || (s->session == NULL))
835 if (r == NULL) return(r);
837 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
842 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
846 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
849 r=s->session->sess_cert->cert_chain;
851 /* If we are a client, cert_chain includes the peer's own
852 * certificate; if we are a server, it does not. */
857 /* Now in theory, since the calling process own 't' it should be safe to
858 * modify. We need to be able to read f without being hassled */
859 void SSL_copy_session_id(SSL *t,const SSL *f)
863 /* Do we need to to SSL locking? */
864 SSL_set_session(t,SSL_get_session(f));
866 /* what if we are setup as SSLv2 but want to talk SSLv3 or
868 if (t->method != f->method)
870 t->method->ssl_free(t); /* cleanup current */
871 t->method=f->method; /* change method */
872 t->method->ssl_new(t); /* setup new */
878 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
883 if (tmp != NULL) ssl_cert_free(tmp);
884 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
887 /* Fix this so it checks all the valid key/cert options */
888 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
890 if ( (ctx == NULL) ||
891 (ctx->cert == NULL) ||
892 (ctx->cert->key->x509 == NULL))
894 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
897 if (ctx->cert->key->privatekey == NULL)
899 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
902 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
905 /* Fix this function so that it takes an optional type parameter */
906 int SSL_check_private_key(const SSL *ssl)
910 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
913 if (ssl->cert == NULL)
915 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
918 if (ssl->cert->key->x509 == NULL)
920 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
923 if (ssl->cert->key->privatekey == NULL)
925 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
928 return(X509_check_private_key(ssl->cert->key->x509,
929 ssl->cert->key->privatekey));
932 int SSL_accept(SSL *s)
934 if (s->handshake_func == 0)
935 /* Not properly initialized yet */
936 SSL_set_accept_state(s);
938 return(s->method->ssl_accept(s));
941 int SSL_connect(SSL *s)
943 if (s->handshake_func == 0)
944 /* Not properly initialized yet */
945 SSL_set_connect_state(s);
947 return(s->method->ssl_connect(s));
950 long SSL_get_default_timeout(const SSL *s)
952 return(s->method->get_timeout());
955 int SSL_read(SSL *s,void *buf,int num)
957 if (s->handshake_func == 0)
959 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
963 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
965 s->rwstate=SSL_NOTHING;
968 return(s->method->ssl_read(s,buf,num));
971 int SSL_peek(SSL *s,void *buf,int num)
973 if (s->handshake_func == 0)
975 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
979 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
983 return(s->method->ssl_peek(s,buf,num));
986 int SSL_write(SSL *s,const void *buf,int num)
988 if (s->handshake_func == 0)
990 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
994 if (s->shutdown & SSL_SENT_SHUTDOWN)
996 s->rwstate=SSL_NOTHING;
997 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
1000 return(s->method->ssl_write(s,buf,num));
1003 int SSL_shutdown(SSL *s)
1005 /* Note that this function behaves differently from what one might
1006 * expect. Return values are 0 for no success (yet),
1007 * 1 for success; but calling it once is usually not enough,
1008 * even if blocking I/O is used (see ssl3_shutdown).
1011 if (s->handshake_func == 0)
1013 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1017 if ((s != NULL) && !SSL_in_init(s))
1018 return(s->method->ssl_shutdown(s));
1023 int SSL_renegotiate(SSL *s)
1025 if (s->renegotiate == 0)
1030 return(s->method->ssl_renegotiate(s));
1033 int SSL_renegotiate_abbreviated(SSL *s)
1035 if (s->renegotiate == 0)
1040 return(s->method->ssl_renegotiate(s));
1043 int SSL_renegotiate_pending(SSL *s)
1045 /* becomes true when negotiation is requested;
1046 * false again once a handshake has finished */
1047 return (s->renegotiate != 0);
1050 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
1056 case SSL_CTRL_GET_READ_AHEAD:
1057 return(s->read_ahead);
1058 case SSL_CTRL_SET_READ_AHEAD:
1063 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1064 s->msg_callback_arg = parg;
1067 case SSL_CTRL_OPTIONS:
1068 return(s->options|=larg);
1069 case SSL_CTRL_CLEAR_OPTIONS:
1070 return(s->options&=~larg);
1072 return(s->mode|=larg);
1073 case SSL_CTRL_CLEAR_MODE:
1074 return(s->mode &=~larg);
1075 case SSL_CTRL_GET_MAX_CERT_LIST:
1076 return(s->max_cert_list);
1077 case SSL_CTRL_SET_MAX_CERT_LIST:
1079 s->max_cert_list=larg;
1081 case SSL_CTRL_SET_MTU:
1082 #ifndef OPENSSL_NO_DTLS1
1083 if (larg < (long)dtls1_min_mtu())
1087 if (SSL_version(s) == DTLS1_VERSION ||
1088 SSL_version(s) == DTLS1_BAD_VER)
1094 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1095 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1097 s->max_send_fragment = larg;
1099 case SSL_CTRL_GET_RI_SUPPORT:
1101 return s->s3->send_connection_binding;
1104 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1108 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1112 case SSL_CTRL_SET_MSG_CALLBACK:
1113 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1117 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1121 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1123 return ctx->sessions;
1126 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1132 case SSL_CTRL_GET_READ_AHEAD:
1133 return(ctx->read_ahead);
1134 case SSL_CTRL_SET_READ_AHEAD:
1136 ctx->read_ahead=larg;
1139 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1140 ctx->msg_callback_arg = parg;
1143 case SSL_CTRL_GET_MAX_CERT_LIST:
1144 return(ctx->max_cert_list);
1145 case SSL_CTRL_SET_MAX_CERT_LIST:
1146 l=ctx->max_cert_list;
1147 ctx->max_cert_list=larg;
1150 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1151 l=ctx->session_cache_size;
1152 ctx->session_cache_size=larg;
1154 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1155 return(ctx->session_cache_size);
1156 case SSL_CTRL_SET_SESS_CACHE_MODE:
1157 l=ctx->session_cache_mode;
1158 ctx->session_cache_mode=larg;
1160 case SSL_CTRL_GET_SESS_CACHE_MODE:
1161 return(ctx->session_cache_mode);
1163 case SSL_CTRL_SESS_NUMBER:
1164 return(lh_SSL_SESSION_num_items(ctx->sessions));
1165 case SSL_CTRL_SESS_CONNECT:
1166 return(ctx->stats.sess_connect);
1167 case SSL_CTRL_SESS_CONNECT_GOOD:
1168 return(ctx->stats.sess_connect_good);
1169 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1170 return(ctx->stats.sess_connect_renegotiate);
1171 case SSL_CTRL_SESS_ACCEPT:
1172 return(ctx->stats.sess_accept);
1173 case SSL_CTRL_SESS_ACCEPT_GOOD:
1174 return(ctx->stats.sess_accept_good);
1175 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1176 return(ctx->stats.sess_accept_renegotiate);
1177 case SSL_CTRL_SESS_HIT:
1178 return(ctx->stats.sess_hit);
1179 case SSL_CTRL_SESS_CB_HIT:
1180 return(ctx->stats.sess_cb_hit);
1181 case SSL_CTRL_SESS_MISSES:
1182 return(ctx->stats.sess_miss);
1183 case SSL_CTRL_SESS_TIMEOUTS:
1184 return(ctx->stats.sess_timeout);
1185 case SSL_CTRL_SESS_CACHE_FULL:
1186 return(ctx->stats.sess_cache_full);
1187 case SSL_CTRL_OPTIONS:
1188 return(ctx->options|=larg);
1189 case SSL_CTRL_CLEAR_OPTIONS:
1190 return(ctx->options&=~larg);
1192 return(ctx->mode|=larg);
1193 case SSL_CTRL_CLEAR_MODE:
1194 return(ctx->mode&=~larg);
1195 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1196 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1198 ctx->max_send_fragment = larg;
1201 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1205 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1209 case SSL_CTRL_SET_MSG_CALLBACK:
1210 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1214 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1218 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1226 return((l > 0)?1:-1);
1229 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1230 const SSL_CIPHER * const *bp)
1234 l=(*ap)->id-(*bp)->id;
1238 return((l > 0)?1:-1);
1241 /** return a STACK of the ciphers available for the SSL and in order of
1243 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1247 if (s->cipher_list != NULL)
1249 return(s->cipher_list);
1251 else if ((s->ctx != NULL) &&
1252 (s->ctx->cipher_list != NULL))
1254 return(s->ctx->cipher_list);
1260 /** return a STACK of the ciphers available for the SSL and in order of
1262 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1266 if (s->cipher_list_by_id != NULL)
1268 return(s->cipher_list_by_id);
1270 else if ((s->ctx != NULL) &&
1271 (s->ctx->cipher_list_by_id != NULL))
1273 return(s->ctx->cipher_list_by_id);
1279 /** The old interface to get the same thing as SSL_get_ciphers() */
1280 const char *SSL_get_cipher_list(const SSL *s,int n)
1283 STACK_OF(SSL_CIPHER) *sk;
1285 if (s == NULL) return(NULL);
1286 sk=SSL_get_ciphers(s);
1287 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1289 c=sk_SSL_CIPHER_value(sk,n);
1290 if (c == NULL) return(NULL);
1294 /** specify the ciphers to be used by default by the SSL_CTX */
1295 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1297 STACK_OF(SSL_CIPHER) *sk;
1299 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1300 &ctx->cipher_list_by_id,str);
1301 /* ssl_create_cipher_list may return an empty stack if it
1302 * was unable to find a cipher matching the given rule string
1303 * (for example if the rule string specifies a cipher which
1304 * has been disabled). This is not an error as far as
1305 * ssl_create_cipher_list is concerned, and hence
1306 * ctx->cipher_list and ctx->cipher_list_by_id has been
1310 else if (sk_SSL_CIPHER_num(sk) == 0)
1312 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1318 /** specify the ciphers to be used by the SSL */
1319 int SSL_set_cipher_list(SSL *s,const char *str)
1321 STACK_OF(SSL_CIPHER) *sk;
1323 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1324 &s->cipher_list_by_id,str);
1325 /* see comment in SSL_CTX_set_cipher_list */
1328 else if (sk_SSL_CIPHER_num(sk) == 0)
1330 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1336 /* works well for SSLv2, not so good for SSLv3 */
1337 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1340 STACK_OF(SSL_CIPHER) *sk;
1344 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1349 sk=s->session->ciphers;
1350 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1354 c=sk_SSL_CIPHER_value(sk,i);
1372 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1373 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1378 #ifndef OPENSSL_NO_KRB5
1379 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1380 #endif /* OPENSSL_NO_KRB5 */
1382 if (sk == NULL) return(0);
1385 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1387 c=sk_SSL_CIPHER_value(sk,i);
1388 /* Skip TLS v1.2 only ciphersuites if lower than v1.2 */
1389 if ((c->algorithm_ssl & SSL_TLSV1_2) &&
1390 (TLS1_get_client_version(s) < TLS1_2_VERSION))
1392 #ifndef OPENSSL_NO_KRB5
1393 if (((c->algorithm_mkey & SSL_kKRB5) || (c->algorithm_auth & SSL_aKRB5)) &&
1396 #endif /* OPENSSL_NO_KRB5 */
1397 #ifndef OPENSSL_NO_PSK
1398 /* with PSK there must be client callback set */
1399 if (((c->algorithm_mkey & SSL_kPSK) || (c->algorithm_auth & SSL_aPSK)) &&
1400 s->psk_client_callback == NULL)
1402 #endif /* OPENSSL_NO_PSK */
1403 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1406 /* If p == q, no ciphers and caller indicates an error. Otherwise
1407 * add SCSV if not renegotiating.
1409 if (p != q && !s->renegotiate)
1411 static SSL_CIPHER scsv =
1413 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1415 j = put_cb ? put_cb(&scsv,p) : ssl_put_cipher_by_char(s,&scsv,p);
1417 #ifdef OPENSSL_RI_DEBUG
1418 fprintf(stderr, "SCSV sent by client\n");
1425 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1426 STACK_OF(SSL_CIPHER) **skp)
1428 const SSL_CIPHER *c;
1429 STACK_OF(SSL_CIPHER) *sk;
1432 s->s3->send_connection_binding = 0;
1434 n=ssl_put_cipher_by_char(s,NULL,NULL);
1437 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1440 if ((skp == NULL) || (*skp == NULL))
1441 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1445 sk_SSL_CIPHER_zero(sk);
1448 for (i=0; i<num; i+=n)
1450 /* Check for SCSV */
1451 if (s->s3 && (n != 3 || !p[0]) &&
1452 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1453 (p[n-1] == (SSL3_CK_SCSV & 0xff)))
1455 /* SCSV fatal if renegotiating */
1458 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1459 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1462 s->s3->send_connection_binding = 1;
1464 #ifdef OPENSSL_RI_DEBUG
1465 fprintf(stderr, "SCSV received by server\n");
1470 c=ssl_get_cipher_by_char(s,p);
1474 if (!sk_SSL_CIPHER_push(sk,c))
1476 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1486 if ((skp == NULL) || (*skp == NULL))
1487 sk_SSL_CIPHER_free(sk);
1492 #ifndef OPENSSL_NO_TLSEXT
1493 /** return a servername extension value if provided in Client Hello, or NULL.
1494 * So far, only host_name types are defined (RFC 3546).
1497 const char *SSL_get_servername(const SSL *s, const int type)
1499 if (type != TLSEXT_NAMETYPE_host_name)
1502 return s->session && !s->tlsext_hostname ?
1503 s->session->tlsext_hostname :
1507 int SSL_get_servername_type(const SSL *s)
1509 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1510 return TLSEXT_NAMETYPE_host_name;
1514 # ifndef OPENSSL_NO_NEXTPROTONEG
1515 /* SSL_select_next_proto implements the standard protocol selection. It is
1516 * expected that this function is called from the callback set by
1517 * SSL_CTX_set_next_proto_select_cb.
1519 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
1520 * strings. The length byte itself is not included in the length. A byte
1521 * string of length 0 is invalid. No byte string may be truncated.
1523 * The current, but experimental algorithm for selecting the protocol is:
1525 * 1) If the server doesn't support NPN then this is indicated to the
1526 * callback. In this case, the client application has to abort the connection
1527 * or have a default application level protocol.
1529 * 2) If the server supports NPN, but advertises an empty list then the
1530 * client selects the first protcol in its list, but indicates via the
1531 * API that this fallback case was enacted.
1533 * 3) Otherwise, the client finds the first protocol in the server's list
1534 * that it supports and selects this protocol. This is because it's
1535 * assumed that the server has better information about which protocol
1536 * a client should use.
1538 * 4) If the client doesn't support any of the server's advertised
1539 * protocols, then this is treated the same as case 2.
1542 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or
1543 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1545 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)
1548 const unsigned char *result;
1549 int status = OPENSSL_NPN_UNSUPPORTED;
1551 /* For each protocol in server preference order, see if we support it. */
1552 for (i = 0; i < server_len; )
1554 for (j = 0; j < client_len; )
1556 if (server[i] == client[j] &&
1557 memcmp(&server[i+1], &client[j+1], server[i]) == 0)
1559 /* We found a match */
1560 result = &server[i];
1561 status = OPENSSL_NPN_NEGOTIATED;
1571 /* There's no overlap between our protocols and the server's list. */
1573 status = OPENSSL_NPN_NO_OVERLAP;
1576 *out = (unsigned char *) result + 1;
1577 *outlen = result[0];
1581 /* SSL_get0_next_proto_negotiated sets *data and *len to point to the client's
1582 * requested protocol for this connection and returns 0. If the client didn't
1583 * request any protocol, then *data is set to NULL.
1585 * Note that the client can request any protocol it chooses. The value returned
1586 * from this function need not be a member of the list of supported protocols
1587 * provided by the callback.
1589 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, unsigned *len)
1591 *data = s->next_proto_negotiated;
1595 *len = s->next_proto_negotiated_len;
1599 /* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a
1600 * TLS server needs a list of supported protocols for Next Protocol
1601 * Negotiation. The returned list must be in wire format. The list is returned
1602 * by setting |out| to point to it and |outlen| to its length. This memory will
1603 * not be modified, but one should assume that the SSL* keeps a reference to
1606 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. Otherwise, no
1607 * such extension will be included in the ServerHello. */
1608 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)
1610 ctx->next_protos_advertised_cb = cb;
1611 ctx->next_protos_advertised_cb_arg = arg;
1614 /* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1615 * client needs to select a protocol from the server's provided list. |out|
1616 * must be set to point to the selected protocol (which may be within |in|).
1617 * The length of the protocol name must be written into |outlen|. The server's
1618 * advertised protocols are provided in |in| and |inlen|. The callback can
1619 * assume that |in| is syntactically valid.
1621 * The client must select a protocol. It is fatal to the connection if this
1622 * callback returns a value other than SSL_TLSEXT_ERR_OK.
1624 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)
1626 ctx->next_proto_select_cb = cb;
1627 ctx->next_proto_select_cb_arg = arg;
1632 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1633 const char *label, size_t llen, const unsigned char *p, size_t plen,
1636 if (s->version < TLS1_VERSION)
1639 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1644 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1649 ((unsigned int) a->session_id[0] )|
1650 ((unsigned int) a->session_id[1]<< 8L)|
1651 ((unsigned long)a->session_id[2]<<16L)|
1652 ((unsigned long)a->session_id[3]<<24L);
1656 /* NB: If this function (or indeed the hash function which uses a sort of
1657 * coarser function than this one) is changed, ensure
1658 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1659 * able to construct an SSL_SESSION that will collide with any existing session
1660 * with a matching session ID. */
1661 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1663 if (a->ssl_version != b->ssl_version)
1665 if (a->session_id_length != b->session_id_length)
1667 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1670 /* These wrapper functions should remain rather than redeclaring
1671 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1672 * variable. The reason is that the functions aren't static, they're exposed via
1674 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1675 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1677 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1683 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1688 if (FIPS_mode() && (meth->version < TLS1_VERSION))
1690 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1695 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1697 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1700 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1704 memset(ret,0,sizeof(SSL_CTX));
1708 ret->cert_store=NULL;
1709 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1710 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1711 ret->session_cache_head=NULL;
1712 ret->session_cache_tail=NULL;
1714 /* We take the system default */
1715 ret->session_timeout=meth->get_timeout();
1717 ret->new_session_cb=0;
1718 ret->remove_session_cb=0;
1719 ret->get_session_cb=0;
1720 ret->generate_session_id=0;
1722 memset((char *)&ret->stats,0,sizeof(ret->stats));
1725 ret->quiet_shutdown=0;
1727 /* ret->cipher=NULL;*/
1728 /* ret->s2->challenge=NULL;
1729 ret->master_key=NULL;
1731 ret->s2->conn_id=NULL; */
1733 ret->info_callback=NULL;
1735 ret->app_verify_callback=0;
1736 ret->app_verify_arg=NULL;
1738 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1740 ret->msg_callback=0;
1741 ret->msg_callback_arg=NULL;
1742 ret->verify_mode=SSL_VERIFY_NONE;
1744 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1746 ret->sid_ctx_length=0;
1747 ret->default_verify_callback=NULL;
1748 if ((ret->cert=ssl_cert_new()) == NULL)
1751 ret->default_passwd_callback=0;
1752 ret->default_passwd_callback_userdata=NULL;
1753 ret->client_cert_cb=0;
1754 ret->app_gen_cookie_cb=0;
1755 ret->app_verify_cookie_cb=0;
1757 ret->sessions=lh_SSL_SESSION_new();
1758 if (ret->sessions == NULL) goto err;
1759 ret->cert_store=X509_STORE_new();
1760 if (ret->cert_store == NULL) goto err;
1762 ssl_create_cipher_list(ret->method,
1763 &ret->cipher_list,&ret->cipher_list_by_id,
1764 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST);
1765 if (ret->cipher_list == NULL
1766 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1768 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1772 ret->param = X509_VERIFY_PARAM_new();
1776 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1778 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1781 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1783 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1786 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1788 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1792 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1795 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1797 ret->extra_certs=NULL;
1798 ret->comp_methods=SSL_COMP_get_compression_methods();
1800 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1802 #ifndef OPENSSL_NO_TLSEXT
1803 ret->tlsext_servername_callback = 0;
1804 ret->tlsext_servername_arg = NULL;
1805 /* Setup RFC4507 ticket keys */
1806 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1807 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1808 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1809 ret->options |= SSL_OP_NO_TICKET;
1811 ret->tlsext_status_cb = 0;
1812 ret->tlsext_status_arg = NULL;
1814 # ifndef OPENSSL_NO_NEXTPROTONEG
1815 ret->next_protos_advertised_cb = 0;
1816 ret->next_proto_select_cb = 0;
1819 #ifndef OPENSSL_NO_PSK
1820 ret->psk_identity_hint=NULL;
1821 ret->psk_client_callback=NULL;
1822 ret->psk_server_callback=NULL;
1824 #ifndef OPENSSL_NO_SRP
1825 SSL_CTX_SRP_CTX_init(ret);
1827 #ifndef OPENSSL_NO_BUF_FREELISTS
1828 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
1829 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1830 if (!ret->rbuf_freelist)
1832 ret->rbuf_freelist->chunklen = 0;
1833 ret->rbuf_freelist->len = 0;
1834 ret->rbuf_freelist->head = NULL;
1835 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1836 if (!ret->wbuf_freelist)
1838 OPENSSL_free(ret->rbuf_freelist);
1841 ret->wbuf_freelist->chunklen = 0;
1842 ret->wbuf_freelist->len = 0;
1843 ret->wbuf_freelist->head = NULL;
1845 #ifndef OPENSSL_NO_ENGINE
1846 ret->client_cert_engine = NULL;
1847 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1848 #define eng_strx(x) #x
1849 #define eng_str(x) eng_strx(x)
1850 /* Use specific client engine automatically... ignore errors */
1853 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1857 ENGINE_load_builtin_engines();
1858 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1860 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1865 /* Default is to connect to non-RI servers. When RI is more widely
1866 * deployed might change this.
1868 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
1872 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1874 if (ret != NULL) SSL_CTX_free(ret);
1879 static void SSL_COMP_free(SSL_COMP *comp)
1880 { OPENSSL_free(comp); }
1883 #ifndef OPENSSL_NO_BUF_FREELISTS
1885 ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
1887 SSL3_BUF_FREELIST_ENTRY *ent, *next;
1888 for (ent = list->head; ent; ent = next)
1897 void SSL_CTX_free(SSL_CTX *a)
1901 if (a == NULL) return;
1903 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1905 REF_PRINT("SSL_CTX",a);
1911 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1917 X509_VERIFY_PARAM_free(a->param);
1920 * Free internal session cache. However: the remove_cb() may reference
1921 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1922 * after the sessions were flushed.
1923 * As the ex_data handling routines might also touch the session cache,
1924 * the most secure solution seems to be: empty (flush) the cache, then
1925 * free ex_data, then finally free the cache.
1926 * (See ticket [openssl.org #212].)
1928 if (a->sessions != NULL)
1929 SSL_CTX_flush_sessions(a,0);
1931 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1933 if (a->sessions != NULL)
1934 lh_SSL_SESSION_free(a->sessions);
1936 if (a->cert_store != NULL)
1937 X509_STORE_free(a->cert_store);
1938 if (a->cipher_list != NULL)
1939 sk_SSL_CIPHER_free(a->cipher_list);
1940 if (a->cipher_list_by_id != NULL)
1941 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1942 if (a->cert != NULL)
1943 ssl_cert_free(a->cert);
1944 if (a->client_CA != NULL)
1945 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1946 if (a->extra_certs != NULL)
1947 sk_X509_pop_free(a->extra_certs,X509_free);
1948 #if 0 /* This should never be done, since it removes a global database */
1949 if (a->comp_methods != NULL)
1950 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1952 a->comp_methods = NULL;
1955 if (a->srtp_profiles)
1956 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
1958 #ifndef OPENSSL_NO_PSK
1959 if (a->psk_identity_hint)
1960 OPENSSL_free(a->psk_identity_hint);
1962 #ifndef OPENSSL_NO_SRP
1963 SSL_CTX_SRP_CTX_free(a);
1965 #ifndef OPENSSL_NO_ENGINE
1966 if (a->client_cert_engine)
1967 ENGINE_finish(a->client_cert_engine);
1970 #ifndef OPENSSL_NO_BUF_FREELISTS
1971 if (a->wbuf_freelist)
1972 ssl_buf_freelist_free(a->wbuf_freelist);
1973 if (a->rbuf_freelist)
1974 ssl_buf_freelist_free(a->rbuf_freelist);
1980 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1982 ctx->default_passwd_callback=cb;
1985 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1987 ctx->default_passwd_callback_userdata=u;
1990 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1992 ctx->app_verify_callback=cb;
1993 ctx->app_verify_arg=arg;
1996 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1998 ctx->verify_mode=mode;
1999 ctx->default_verify_callback=cb;
2002 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
2004 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2007 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
2010 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
2011 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
2012 int rsa_tmp_export,dh_tmp_export,kl;
2013 unsigned long mask_k,mask_a,emask_k,emask_a;
2014 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size;
2015 #ifndef OPENSSL_NO_ECDH
2019 EVP_PKEY *ecc_pkey = NULL;
2020 int signature_nid = 0, pk_nid = 0, md_nid = 0;
2022 if (c == NULL) return;
2024 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
2026 #ifndef OPENSSL_NO_RSA
2027 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2028 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
2029 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
2031 rsa_tmp=rsa_tmp_export=0;
2033 #ifndef OPENSSL_NO_DH
2034 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
2035 dh_tmp_export=(c->dh_tmp_cb != NULL ||
2036 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
2038 dh_tmp=dh_tmp_export=0;
2041 #ifndef OPENSSL_NO_ECDH
2042 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL);
2044 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
2045 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
2046 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2047 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2048 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
2049 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2050 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
2051 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
2052 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
2053 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2054 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
2055 /* FIX THIS EAY EAY EAY */
2056 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
2057 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
2058 cpk= &(c->pkeys[SSL_PKEY_ECC]);
2059 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL);
2068 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2069 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
2070 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
2073 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2074 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2075 mask_k |= SSL_kGOST;
2076 mask_a |= SSL_aGOST01;
2078 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2079 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
2080 mask_k |= SSL_kGOST;
2081 mask_a |= SSL_aGOST94;
2084 if (rsa_enc || (rsa_tmp && rsa_sign))
2086 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2090 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2091 if ( (dh_tmp || dh_rsa || dh_dsa) &&
2092 (rsa_enc || rsa_sign || dsa_sign))
2094 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
2095 (rsa_enc || rsa_sign || dsa_sign))
2105 if (dh_rsa) mask_k|=SSL_kDHr;
2106 if (dh_rsa_export) emask_k|=SSL_kDHr;
2108 if (dh_dsa) mask_k|=SSL_kDHd;
2109 if (dh_dsa_export) emask_k|=SSL_kDHd;
2111 if (rsa_enc || rsa_sign)
2126 #ifndef OPENSSL_NO_KRB5
2133 /* An ECC certificate may be usable for ECDH and/or
2134 * ECDSA cipher suites depending on the key usage extension.
2138 /* This call populates extension flags (ex_flags) */
2139 x = (c->pkeys[SSL_PKEY_ECC]).x509;
2140 X509_check_purpose(x, -1, 0);
2141 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2142 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2143 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2144 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2145 ecc_pkey = X509_get_pubkey(x);
2146 ecc_pkey_size = (ecc_pkey != NULL) ?
2147 EVP_PKEY_bits(ecc_pkey) : 0;
2148 EVP_PKEY_free(ecc_pkey);
2149 if ((x->sig_alg) && (x->sig_alg->algorithm))
2151 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2152 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2154 #ifndef OPENSSL_NO_ECDH
2158 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa)
2162 if (ecc_pkey_size <= 163)
2164 emask_k|=SSL_kECDHr;
2169 if (pk_nid == NID_X9_62_id_ecPublicKey)
2173 if (ecc_pkey_size <= 163)
2175 emask_k|=SSL_kECDHe;
2181 #ifndef OPENSSL_NO_ECDSA
2185 emask_a|=SSL_aECDSA;
2190 #ifndef OPENSSL_NO_ECDH
2194 emask_k|=SSL_kEECDH;
2198 #ifndef OPENSSL_NO_PSK
2201 emask_k |= SSL_kPSK;
2202 emask_a |= SSL_aPSK;
2207 c->export_mask_k=emask_k;
2208 c->export_mask_a=emask_a;
2212 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2213 #define ku_reject(x, usage) \
2214 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2216 #ifndef OPENSSL_NO_EC
2218 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2220 unsigned long alg_k, alg_a;
2221 EVP_PKEY *pkey = NULL;
2223 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2224 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2226 alg_k = cs->algorithm_mkey;
2227 alg_a = cs->algorithm_auth;
2229 if (SSL_C_IS_EXPORT(cs))
2231 /* ECDH key length in export ciphers must be <= 163 bits */
2232 pkey = X509_get_pubkey(x);
2233 if (pkey == NULL) return 0;
2234 keysize = EVP_PKEY_bits(pkey);
2235 EVP_PKEY_free(pkey);
2236 if (keysize > 163) return 0;
2239 /* This call populates the ex_flags field correctly */
2240 X509_check_purpose(x, -1, 0);
2241 if ((x->sig_alg) && (x->sig_alg->algorithm))
2243 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2244 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2246 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
2248 /* key usage, if present, must allow key agreement */
2249 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
2251 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2254 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION)
2256 /* signature alg must be ECDSA */
2257 if (pk_nid != NID_X9_62_id_ecPublicKey)
2259 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2263 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION)
2265 /* signature alg must be RSA */
2267 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa)
2269 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2274 if (alg_a & SSL_aECDSA)
2276 /* key usage, if present, must allow signing */
2277 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
2279 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2284 return 1; /* all checks are ok */
2289 /* THIS NEEDS CLEANING UP */
2290 X509 *ssl_get_server_send_cert(const SSL *s)
2292 unsigned long alg_k,alg_a;
2297 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2299 alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
2300 alg_a = s->s3->tmp.new_cipher->algorithm_auth;
2302 if (alg_k & (SSL_kECDHr|SSL_kECDHe))
2304 /* we don't need to look at SSL_kEECDH
2305 * since no certificate is needed for
2306 * anon ECDH and for authenticated
2307 * EECDH, the check for the auth
2308 * algorithm will set i correctly
2309 * NOTE: For ECDH-RSA, we need an ECC
2310 * not an RSA cert but for EECDH-RSA
2311 * we need an RSA cert. Placing the
2312 * checks for SSL_kECDH before RSA
2313 * checks ensures the correct cert is chosen.
2317 else if (alg_a & SSL_aECDSA)
2321 else if (alg_k & SSL_kDHr)
2323 else if (alg_k & SSL_kDHd)
2325 else if (alg_a & SSL_aDSS)
2326 i=SSL_PKEY_DSA_SIGN;
2327 else if (alg_a & SSL_aRSA)
2329 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
2330 i=SSL_PKEY_RSA_SIGN;
2334 else if (alg_a & SSL_aKRB5)
2336 /* VRS something else here? */
2339 else if (alg_a & SSL_aGOST94)
2341 else if (alg_a & SSL_aGOST01)
2343 else /* if (alg_a & SSL_aNULL) */
2345 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
2348 if (c->pkeys[i].x509 == NULL) return(NULL);
2350 return(c->pkeys[i].x509);
2353 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher, const EVP_MD **pmd)
2355 unsigned long alg_a;
2359 alg_a = cipher->algorithm_auth;
2362 if ((alg_a & SSL_aDSS) &&
2363 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2364 idx = SSL_PKEY_DSA_SIGN;
2365 else if (alg_a & SSL_aRSA)
2367 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2368 idx = SSL_PKEY_RSA_SIGN;
2369 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2370 idx = SSL_PKEY_RSA_ENC;
2372 else if ((alg_a & SSL_aECDSA) &&
2373 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2377 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2381 *pmd = c->pkeys[idx].digest;
2382 return c->pkeys[idx].privatekey;
2385 void ssl_update_cache(SSL *s,int mode)
2389 /* If the session_id_length is 0, we are not supposed to cache it,
2390 * and it would be rather hard to do anyway :-) */
2391 if (s->session->session_id_length == 0) return;
2393 i=s->session_ctx->session_cache_mode;
2394 if ((i & mode) && (!s->hit)
2395 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2396 || SSL_CTX_add_session(s->session_ctx,s->session))
2397 && (s->session_ctx->new_session_cb != NULL))
2399 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2400 if (!s->session_ctx->new_session_cb(s,s->session))
2401 SSL_SESSION_free(s->session);
2404 /* auto flush every 255 connections */
2405 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2406 ((i & mode) == mode))
2408 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2409 ?s->session_ctx->stats.sess_connect_good
2410 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2412 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2417 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2422 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2427 if (s->method != meth)
2429 if (s->handshake_func != NULL)
2430 conn=(s->handshake_func == s->method->ssl_connect);
2432 if (s->method->version == meth->version)
2436 s->method->ssl_free(s);
2438 ret=s->method->ssl_new(s);
2442 s->handshake_func=meth->ssl_connect;
2444 s->handshake_func=meth->ssl_accept;
2449 int SSL_get_error(const SSL *s,int i)
2455 if (i > 0) return(SSL_ERROR_NONE);
2457 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2458 * etc, where we do encode the error */
2459 if ((l=ERR_peek_error()) != 0)
2461 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2462 return(SSL_ERROR_SYSCALL);
2464 return(SSL_ERROR_SSL);
2467 if ((i < 0) && SSL_want_read(s))
2469 bio=SSL_get_rbio(s);
2470 if (BIO_should_read(bio))
2471 return(SSL_ERROR_WANT_READ);
2472 else if (BIO_should_write(bio))
2473 /* This one doesn't make too much sense ... We never try
2474 * to write to the rbio, and an application program where
2475 * rbio and wbio are separate couldn't even know what it
2477 * However if we ever set s->rwstate incorrectly
2478 * (so that we have SSL_want_read(s) instead of
2479 * SSL_want_write(s)) and rbio and wbio *are* the same,
2480 * this test works around that bug; so it might be safer
2482 return(SSL_ERROR_WANT_WRITE);
2483 else if (BIO_should_io_special(bio))
2485 reason=BIO_get_retry_reason(bio);
2486 if (reason == BIO_RR_CONNECT)
2487 return(SSL_ERROR_WANT_CONNECT);
2488 else if (reason == BIO_RR_ACCEPT)
2489 return(SSL_ERROR_WANT_ACCEPT);
2491 return(SSL_ERROR_SYSCALL); /* unknown */
2495 if ((i < 0) && SSL_want_write(s))
2497 bio=SSL_get_wbio(s);
2498 if (BIO_should_write(bio))
2499 return(SSL_ERROR_WANT_WRITE);
2500 else if (BIO_should_read(bio))
2501 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2502 return(SSL_ERROR_WANT_READ);
2503 else if (BIO_should_io_special(bio))
2505 reason=BIO_get_retry_reason(bio);
2506 if (reason == BIO_RR_CONNECT)
2507 return(SSL_ERROR_WANT_CONNECT);
2508 else if (reason == BIO_RR_ACCEPT)
2509 return(SSL_ERROR_WANT_ACCEPT);
2511 return(SSL_ERROR_SYSCALL);
2514 if ((i < 0) && SSL_want_x509_lookup(s))
2516 return(SSL_ERROR_WANT_X509_LOOKUP);
2521 if (s->version == SSL2_VERSION)
2523 /* assume it is the socket being closed */
2524 return(SSL_ERROR_ZERO_RETURN);
2528 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2529 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2530 return(SSL_ERROR_ZERO_RETURN);
2533 return(SSL_ERROR_SYSCALL);
2536 int SSL_do_handshake(SSL *s)
2540 if (s->handshake_func == NULL)
2542 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2546 s->method->ssl_renegotiate_check(s);
2548 if (SSL_in_init(s) || SSL_in_before(s))
2550 ret=s->handshake_func(s);
2555 /* For the next 2 functions, SSL_clear() sets shutdown and so
2556 * one of these calls will reset it */
2557 void SSL_set_accept_state(SSL *s)
2561 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2562 s->handshake_func=s->method->ssl_accept;
2563 /* clear the current cipher */
2564 ssl_clear_cipher_ctx(s);
2565 ssl_clear_hash_ctx(&s->read_hash);
2566 ssl_clear_hash_ctx(&s->write_hash);
2569 void SSL_set_connect_state(SSL *s)
2573 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2574 s->handshake_func=s->method->ssl_connect;
2575 /* clear the current cipher */
2576 ssl_clear_cipher_ctx(s);
2577 ssl_clear_hash_ctx(&s->read_hash);
2578 ssl_clear_hash_ctx(&s->write_hash);
2581 int ssl_undefined_function(SSL *s)
2583 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2587 int ssl_undefined_void_function(void)
2589 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2593 int ssl_undefined_const_function(const SSL *s)
2595 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2599 SSL_METHOD *ssl_bad_method(int ver)
2601 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2605 const char *SSL_get_version(const SSL *s)
2607 if (s->version == TLS1_2_VERSION)
2609 else if (s->version == TLS1_1_VERSION)
2611 else if (s->version == TLS1_VERSION)
2613 else if (s->version == SSL3_VERSION)
2615 else if (s->version == SSL2_VERSION)
2621 SSL *SSL_dup(SSL *s)
2623 STACK_OF(X509_NAME) *sk;
2628 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2631 ret->version = s->version;
2632 ret->type = s->type;
2633 ret->method = s->method;
2635 if (s->session != NULL)
2637 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2638 SSL_copy_session_id(ret,s);
2642 /* No session has been established yet, so we have to expect
2643 * that s->cert or ret->cert will be changed later --
2644 * they should not both point to the same object,
2645 * and thus we can't use SSL_copy_session_id. */
2647 ret->method->ssl_free(ret);
2648 ret->method = s->method;
2649 ret->method->ssl_new(ret);
2651 if (s->cert != NULL)
2653 if (ret->cert != NULL)
2655 ssl_cert_free(ret->cert);
2657 ret->cert = ssl_cert_dup(s->cert);
2658 if (ret->cert == NULL)
2662 SSL_set_session_id_context(ret,
2663 s->sid_ctx, s->sid_ctx_length);
2666 ret->options=s->options;
2668 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2669 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2670 ret->msg_callback = s->msg_callback;
2671 ret->msg_callback_arg = s->msg_callback_arg;
2672 SSL_set_verify(ret,SSL_get_verify_mode(s),
2673 SSL_get_verify_callback(s));
2674 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2675 ret->generate_session_id = s->generate_session_id;
2677 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2679 ret->debug=s->debug;
2681 /* copy app data, a little dangerous perhaps */
2682 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2685 /* setup rbio, and wbio */
2686 if (s->rbio != NULL)
2688 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2691 if (s->wbio != NULL)
2693 if (s->wbio != s->rbio)
2695 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2699 ret->wbio=ret->rbio;
2701 ret->rwstate = s->rwstate;
2702 ret->in_handshake = s->in_handshake;
2703 ret->handshake_func = s->handshake_func;
2704 ret->server = s->server;
2705 ret->renegotiate = s->renegotiate;
2706 ret->new_session = s->new_session;
2707 ret->quiet_shutdown = s->quiet_shutdown;
2708 ret->shutdown=s->shutdown;
2709 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2710 ret->rstate=s->rstate;
2711 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2714 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2716 /* dup the cipher_list and cipher_list_by_id stacks */
2717 if (s->cipher_list != NULL)
2719 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2722 if (s->cipher_list_by_id != NULL)
2723 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2727 /* Dup the client_CA list */
2728 if (s->client_CA != NULL)
2730 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2732 for (i=0; i<sk_X509_NAME_num(sk); i++)
2734 xn=sk_X509_NAME_value(sk,i);
2735 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2746 if (ret != NULL) SSL_free(ret);
2752 void ssl_clear_cipher_ctx(SSL *s)
2754 if (s->enc_read_ctx != NULL)
2756 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2757 OPENSSL_free(s->enc_read_ctx);
2758 s->enc_read_ctx=NULL;
2760 if (s->enc_write_ctx != NULL)
2762 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2763 OPENSSL_free(s->enc_write_ctx);
2764 s->enc_write_ctx=NULL;
2766 #ifndef OPENSSL_NO_COMP
2767 if (s->expand != NULL)
2769 COMP_CTX_free(s->expand);
2772 if (s->compress != NULL)
2774 COMP_CTX_free(s->compress);
2780 /* Fix this function so that it takes an optional type parameter */
2781 X509 *SSL_get_certificate(const SSL *s)
2784 return(ssl_get_server_send_cert(s));
2785 else if (s->cert != NULL)
2786 return(s->cert->key->x509);
2791 /* Fix this function so that it takes an optional type parameter */
2792 EVP_PKEY *SSL_get_privatekey(SSL *s)
2794 if (s->cert != NULL)
2795 return(s->cert->key->privatekey);
2800 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2802 if ((s->session != NULL) && (s->session->cipher != NULL))
2803 return(s->session->cipher);
2806 #ifdef OPENSSL_NO_COMP
2807 const void *SSL_get_current_compression(SSL *s)
2811 const void *SSL_get_current_expansion(SSL *s)
2817 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2819 if (s->compress != NULL)
2820 return(s->compress->meth);
2824 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2826 if (s->expand != NULL)
2827 return(s->expand->meth);
2832 int ssl_init_wbio_buffer(SSL *s,int push)
2836 if (s->bbio == NULL)
2838 bbio=BIO_new(BIO_f_buffer());
2839 if (bbio == NULL) return(0);
2845 if (s->bbio == s->wbio)
2846 s->wbio=BIO_pop(s->wbio);
2848 (void)BIO_reset(bbio);
2849 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2850 if (!BIO_set_read_buffer_size(bbio,1))
2852 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2857 if (s->wbio != bbio)
2858 s->wbio=BIO_push(bbio,s->wbio);
2862 if (s->wbio == bbio)
2863 s->wbio=BIO_pop(bbio);
2868 void ssl_free_wbio_buffer(SSL *s)
2870 if (s->bbio == NULL) return;
2872 if (s->bbio == s->wbio)
2874 /* remove buffering */
2875 s->wbio=BIO_pop(s->wbio);
2876 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2877 assert(s->wbio != NULL);
2884 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2886 ctx->quiet_shutdown=mode;
2889 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2891 return(ctx->quiet_shutdown);
2894 void SSL_set_quiet_shutdown(SSL *s,int mode)
2896 s->quiet_shutdown=mode;
2899 int SSL_get_quiet_shutdown(const SSL *s)
2901 return(s->quiet_shutdown);
2904 void SSL_set_shutdown(SSL *s,int mode)
2909 int SSL_get_shutdown(const SSL *s)
2911 return(s->shutdown);
2914 int SSL_version(const SSL *s)
2919 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2924 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
2926 if (ssl->ctx == ctx)
2928 #ifndef OPENSSL_NO_TLSEXT
2930 ctx = ssl->initial_ctx;
2932 if (ssl->cert != NULL)
2933 ssl_cert_free(ssl->cert);
2934 ssl->cert = ssl_cert_dup(ctx->cert);
2935 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
2936 if (ssl->ctx != NULL)
2937 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2942 #ifndef OPENSSL_NO_STDIO
2943 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2945 return(X509_STORE_set_default_paths(ctx->cert_store));
2948 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2951 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
2955 void SSL_set_info_callback(SSL *ssl,
2956 void (*cb)(const SSL *ssl,int type,int val))
2958 ssl->info_callback=cb;
2961 /* One compiler (Diab DCC) doesn't like argument names in returned
2962 function pointer. */
2963 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
2965 return ssl->info_callback;
2968 int SSL_state(const SSL *ssl)
2973 void SSL_set_state(SSL *ssl, int state)
2978 void SSL_set_verify_result(SSL *ssl,long arg)
2980 ssl->verify_result=arg;
2983 long SSL_get_verify_result(const SSL *ssl)
2985 return(ssl->verify_result);
2988 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2989 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2991 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2992 new_func, dup_func, free_func);
2995 int SSL_set_ex_data(SSL *s,int idx,void *arg)
2997 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3000 void *SSL_get_ex_data(const SSL *s,int idx)
3002 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3005 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
3006 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
3008 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3009 new_func, dup_func, free_func);
3012 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
3014 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
3017 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
3019 return(CRYPTO_get_ex_data(&s->ex_data,idx));
3027 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3029 return(ctx->cert_store);
3032 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
3034 if (ctx->cert_store != NULL)
3035 X509_STORE_free(ctx->cert_store);
3036 ctx->cert_store=store;
3039 int SSL_want(const SSL *s)
3045 * \brief Set the callback for generating temporary RSA keys.
3046 * \param ctx the SSL context.
3047 * \param cb the callback
3050 #ifndef OPENSSL_NO_RSA
3051 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
3055 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3058 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
3062 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3068 * \brief The RSA temporary key callback function.
3069 * \param ssl the SSL session.
3070 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3071 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3072 * of the required key in bits.
3073 * \return the temporary RSA key.
3074 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3077 RSA *cb(SSL *ssl,int is_export,int keylength)
3082 * \brief Set the callback for generating temporary DH keys.
3083 * \param ctx the SSL context.
3084 * \param dh the callback
3087 #ifndef OPENSSL_NO_DH
3088 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
3091 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3094 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
3097 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3101 #ifndef OPENSSL_NO_ECDH
3102 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3105 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3108 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
3111 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3115 #ifndef OPENSSL_NO_PSK
3116 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3118 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3120 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3123 if (ctx->psk_identity_hint != NULL)
3124 OPENSSL_free(ctx->psk_identity_hint);
3125 if (identity_hint != NULL)
3127 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3128 if (ctx->psk_identity_hint == NULL)
3132 ctx->psk_identity_hint = NULL;
3136 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3141 if (s->session == NULL)
3142 return 1; /* session not created yet, ignored */
3144 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
3146 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3149 if (s->session->psk_identity_hint != NULL)
3150 OPENSSL_free(s->session->psk_identity_hint);
3151 if (identity_hint != NULL)
3153 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3154 if (s->session->psk_identity_hint == NULL)
3158 s->session->psk_identity_hint = NULL;
3162 const char *SSL_get_psk_identity_hint(const SSL *s)
3164 if (s == NULL || s->session == NULL)
3166 return(s->session->psk_identity_hint);
3169 const char *SSL_get_psk_identity(const SSL *s)
3171 if (s == NULL || s->session == NULL)
3173 return(s->session->psk_identity);
3176 void SSL_set_psk_client_callback(SSL *s,
3177 unsigned int (*cb)(SSL *ssl, const char *hint,
3178 char *identity, unsigned int max_identity_len, unsigned char *psk,
3179 unsigned int max_psk_len))
3181 s->psk_client_callback = cb;
3184 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3185 unsigned int (*cb)(SSL *ssl, const char *hint,
3186 char *identity, unsigned int max_identity_len, unsigned char *psk,
3187 unsigned int max_psk_len))
3189 ctx->psk_client_callback = cb;
3192 void SSL_set_psk_server_callback(SSL *s,
3193 unsigned int (*cb)(SSL *ssl, const char *identity,
3194 unsigned char *psk, unsigned int max_psk_len))
3196 s->psk_server_callback = cb;
3199 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3200 unsigned int (*cb)(SSL *ssl, const char *identity,
3201 unsigned char *psk, unsigned int max_psk_len))
3203 ctx->psk_server_callback = cb;
3207 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))
3209 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3211 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))
3213 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3216 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3217 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
3218 * any. If EVP_MD pointer is passed, initializes ctx with this md
3219 * Returns newly allocated ctx;
3222 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
3224 ssl_clear_hash_ctx(hash);
3225 *hash = EVP_MD_CTX_create();
3226 if (md) EVP_DigestInit_ex(*hash,md,NULL);
3229 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3232 if (*hash) EVP_MD_CTX_destroy(*hash);
3236 void SSL_set_debug(SSL *s, int debug)
3241 int SSL_cache_hit(SSL *s)
3246 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3247 #include "../crypto/bio/bss_file.c"
3250 IMPLEMENT_STACK_OF(SSL_CIPHER)
3251 IMPLEMENT_STACK_OF(SSL_COMP)
3252 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,