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) 1998-2001 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.
123 #include "ssl_locl.h"
124 #include "kssl_lcl.h"
125 #include <openssl/objects.h>
126 #include <openssl/lhash.h>
127 #include <openssl/x509v3.h>
128 #include <openssl/dh.h>
130 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
132 OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={
133 /* evil casts, but these functions are only called if there's a library bug */
134 (int (*)(SSL *,int))ssl_undefined_function,
135 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
136 ssl_undefined_function,
137 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
138 (int (*)(SSL*, int))ssl_undefined_function,
139 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function
142 int SSL_clear(SSL *s)
145 if (s->method == NULL)
147 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
151 if (ssl_clear_bad_session(s))
153 SSL_SESSION_free(s->session);
161 #if 0 /* Disabled since version 1.10 of this file (early return not
162 * needed because SSL_clear is not called when doing renegotiation) */
163 /* This is set if we are doing dynamic renegotiation so keep
164 * the old cipher. It is sort of a SSL_clear_lite :-) */
165 if (s->new_session) return(1);
169 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
176 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
178 s->version=s->method->version;
179 s->client_version=s->version;
180 s->rwstate=SSL_NOTHING;
181 s->rstate=SSL_ST_READ_HEADER;
183 s->read_ahead=s->ctx->read_ahead;
186 if (s->init_buf != NULL)
188 BUF_MEM_free(s->init_buf);
192 ssl_clear_cipher_ctx(s);
197 /* Check to see if we were changed into a different method, if
198 * so, revert back if we are not doing session-id reuse. */
199 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
201 s->method->ssl_free(s);
202 s->method=s->ctx->method;
203 if (!s->method->ssl_new(s))
208 s->method->ssl_clear(s);
212 /** Used to change an SSL_CTXs default SSL method type */
213 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
215 STACK_OF(SSL_CIPHER) *sk;
219 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
220 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
221 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
223 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
229 SSL *SSL_new(SSL_CTX *ctx)
235 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
238 if (ctx->method == NULL)
240 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
244 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
245 if (s == NULL) goto err;
246 memset(s,0,sizeof(SSL));
248 #ifndef OPENSSL_NO_KRB5
249 s->kssl_ctx = kssl_ctx_new();
250 #endif /* OPENSSL_NO_KRB5 */
252 s->options=ctx->options;
254 s->max_cert_list=ctx->max_cert_list;
256 if (ctx->cert != NULL)
258 /* Earlier library versions used to copy the pointer to
259 * the CERT, not its contents; only when setting new
260 * parameters for the per-SSL copy, ssl_cert_new would be
261 * called (and the direct reference to the per-SSL_CTX
262 * settings would be lost, but those still were indirectly
263 * accessed for various purposes, and for that reason they
264 * used to be known as s->ctx->default_cert).
265 * Now we don't look at the SSL_CTX's CERT after having
266 * duplicated it once. */
268 s->cert = ssl_cert_dup(ctx->cert);
273 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
275 s->read_ahead=ctx->read_ahead;
276 s->msg_callback=ctx->msg_callback;
277 s->msg_callback_arg=ctx->msg_callback_arg;
278 s->verify_mode=ctx->verify_mode;
279 s->verify_depth=ctx->verify_depth;
280 s->sid_ctx_length=ctx->sid_ctx_length;
281 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
282 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
283 s->verify_callback=ctx->default_verify_callback;
284 s->generate_session_id=ctx->generate_session_id;
285 s->purpose = ctx->purpose;
286 s->trust = ctx->trust;
287 s->quiet_shutdown=ctx->quiet_shutdown;
289 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
292 s->verify_result=X509_V_OK;
294 s->method=ctx->method;
296 if (!s->method->ssl_new(s))
300 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
304 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
311 ssl_cert_free(s->cert);
313 SSL_CTX_free(s->ctx); /* decrement reference count */
316 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
320 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
321 unsigned int sid_ctx_len)
323 if(sid_ctx_len > sizeof ctx->sid_ctx)
325 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
328 ctx->sid_ctx_length=sid_ctx_len;
329 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
334 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
335 unsigned int sid_ctx_len)
337 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
339 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
342 ssl->sid_ctx_length=sid_ctx_len;
343 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
348 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
350 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
351 ctx->generate_session_id = cb;
352 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
356 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
358 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
359 ssl->generate_session_id = cb;
360 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
364 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
367 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
368 * we can "construct" a session to give us the desired check - ie. to
369 * find if there's a session in the hash table that would conflict with
370 * any new session built out of this id/id_len and the ssl_version in
371 * use by this SSL. */
374 if(id_len > sizeof r.session_id)
377 r.ssl_version = ssl->version;
378 r.session_id_length = id_len;
379 memcpy(r.session_id, id, id_len);
380 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
381 * callback is calling us to check the uniqueness of a shorter ID, it
382 * must be compared as a padded-out ID because that is what it will be
383 * converted to when the callback has finished choosing it. */
384 if((r.ssl_version == SSL2_VERSION) &&
385 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
387 memset(r.session_id + id_len, 0,
388 SSL2_SSL_SESSION_ID_LENGTH - id_len);
389 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
392 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
393 p = (SSL_SESSION *)lh_retrieve(ssl->ctx->sessions, &r);
394 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
398 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
400 return X509_PURPOSE_set(&s->purpose, purpose);
403 int SSL_set_purpose(SSL *s, int purpose)
405 return X509_PURPOSE_set(&s->purpose, purpose);
408 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
410 return X509_TRUST_set(&s->trust, trust);
413 int SSL_set_trust(SSL *s, int trust)
415 return X509_TRUST_set(&s->trust, trust);
418 void SSL_free(SSL *s)
425 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
433 fprintf(stderr,"SSL_free, bad reference count\n");
438 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
442 /* If the buffering BIO is in place, pop it off */
443 if (s->bbio == s->wbio)
445 s->wbio=BIO_pop(s->wbio);
451 BIO_free_all(s->rbio);
452 if ((s->wbio != NULL) && (s->wbio != s->rbio))
453 BIO_free_all(s->wbio);
455 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
457 /* add extra stuff */
458 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
459 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
461 /* Make the next call work :-) */
462 if (s->session != NULL)
464 ssl_clear_bad_session(s);
465 SSL_SESSION_free(s->session);
468 ssl_clear_cipher_ctx(s);
470 if (s->cert != NULL) ssl_cert_free(s->cert);
471 /* Free up if allocated */
473 if (s->ctx) SSL_CTX_free(s->ctx);
475 if (s->client_CA != NULL)
476 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
478 if (s->method != NULL) s->method->ssl_free(s);
480 #ifndef OPENSSL_NO_KRB5
481 if (s->kssl_ctx != NULL)
482 kssl_ctx_free(s->kssl_ctx);
483 #endif /* OPENSSL_NO_KRB5 */
488 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
490 /* If the output buffering BIO is still in place, remove it
494 if (s->wbio == s->bbio)
496 s->wbio=s->wbio->next_bio;
497 s->bbio->next_bio=NULL;
500 if ((s->rbio != NULL) && (s->rbio != rbio))
501 BIO_free_all(s->rbio);
502 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
503 BIO_free_all(s->wbio);
508 BIO *SSL_get_rbio(SSL *s)
511 BIO *SSL_get_wbio(SSL *s)
514 int SSL_get_fd(SSL *s)
516 return(SSL_get_rfd(s));
519 int SSL_get_rfd(SSL *s)
525 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
531 int SSL_get_wfd(SSL *s)
537 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
543 #ifndef OPENSSL_NO_SOCK
544 int SSL_set_fd(SSL *s,int fd)
549 bio=BIO_new(BIO_s_socket());
553 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
556 BIO_set_fd(bio,fd,BIO_NOCLOSE);
557 SSL_set_bio(s,bio,bio);
563 int SSL_set_wfd(SSL *s,int fd)
568 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
569 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
571 bio=BIO_new(BIO_s_socket());
574 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
575 BIO_set_fd(bio,fd,BIO_NOCLOSE);
576 SSL_set_bio(s,SSL_get_rbio(s),bio);
579 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
585 int SSL_set_rfd(SSL *s,int fd)
590 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
591 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
593 bio=BIO_new(BIO_s_socket());
597 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
600 BIO_set_fd(bio,fd,BIO_NOCLOSE);
601 SSL_set_bio(s,bio,SSL_get_wbio(s));
604 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
612 /* return length of latest Finished message we sent, copy to 'buf' */
613 size_t SSL_get_finished(SSL *s, void *buf, size_t count)
619 ret = s->s3->tmp.finish_md_len;
622 memcpy(buf, s->s3->tmp.finish_md, count);
627 /* return length of latest Finished message we expected, copy to 'buf' */
628 size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count)
634 ret = s->s3->tmp.peer_finish_md_len;
637 memcpy(buf, s->s3->tmp.peer_finish_md, count);
643 int SSL_get_verify_mode(SSL *s)
645 return(s->verify_mode);
648 int SSL_get_verify_depth(SSL *s)
650 return(s->verify_depth);
653 int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
655 return(s->verify_callback);
658 int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
660 return(ctx->verify_mode);
663 int SSL_CTX_get_verify_depth(SSL_CTX *ctx)
665 return(ctx->verify_depth);
668 int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
670 return(ctx->default_verify_callback);
673 void SSL_set_verify(SSL *s,int mode,
674 int (*callback)(int ok,X509_STORE_CTX *ctx))
677 if (callback != NULL)
678 s->verify_callback=callback;
681 void SSL_set_verify_depth(SSL *s,int depth)
683 s->verify_depth=depth;
686 void SSL_set_read_ahead(SSL *s,int yes)
691 int SSL_get_read_ahead(SSL *s)
693 return(s->read_ahead);
696 int SSL_pending(SSL *s)
698 /* SSL_pending cannot work properly if read-ahead is enabled
699 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
700 * and it is impossible to fix since SSL_pending cannot report
701 * errors that may be observed while scanning the new data.
702 * (Note that SSL_pending() is often used as a boolean value,
703 * so we'd better not return -1.)
705 return(s->method->ssl_pending(s));
708 X509 *SSL_get_peer_certificate(SSL *s)
712 if ((s == NULL) || (s->session == NULL))
717 if (r == NULL) return(r);
719 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
724 STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
728 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
731 r=s->session->sess_cert->cert_chain;
733 /* If we are a client, cert_chain includes the peer's own
734 * certificate; if we are a server, it does not. */
739 /* Now in theory, since the calling process own 't' it should be safe to
740 * modify. We need to be able to read f without being hassled */
741 void SSL_copy_session_id(SSL *t,SSL *f)
745 /* Do we need to to SSL locking? */
746 SSL_set_session(t,SSL_get_session(f));
748 /* what if we are setup as SSLv2 but want to talk SSLv3 or
750 if (t->method != f->method)
752 t->method->ssl_free(t); /* cleanup current */
753 t->method=f->method; /* change method */
754 t->method->ssl_new(t); /* setup new */
760 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
765 if (tmp != NULL) ssl_cert_free(tmp);
766 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
769 /* Fix this so it checks all the valid key/cert options */
770 int SSL_CTX_check_private_key(SSL_CTX *ctx)
772 if ( (ctx == NULL) ||
773 (ctx->cert == NULL) ||
774 (ctx->cert->key->x509 == NULL))
776 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
779 if (ctx->cert->key->privatekey == NULL)
781 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
784 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
787 /* Fix this function so that it takes an optional type parameter */
788 int SSL_check_private_key(SSL *ssl)
792 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
795 if (ssl->cert == NULL)
797 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
800 if (ssl->cert->key->x509 == NULL)
802 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
805 if (ssl->cert->key->privatekey == NULL)
807 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
810 return(X509_check_private_key(ssl->cert->key->x509,
811 ssl->cert->key->privatekey));
814 int SSL_accept(SSL *s)
816 if (s->handshake_func == 0)
817 /* Not properly initialized yet */
818 SSL_set_accept_state(s);
820 return(s->method->ssl_accept(s));
823 int SSL_connect(SSL *s)
825 if (s->handshake_func == 0)
826 /* Not properly initialized yet */
827 SSL_set_connect_state(s);
829 return(s->method->ssl_connect(s));
832 long SSL_get_default_timeout(SSL *s)
834 return(s->method->get_timeout());
837 int SSL_read(SSL *s,void *buf,int num)
839 if (s->handshake_func == 0)
841 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
845 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
847 s->rwstate=SSL_NOTHING;
850 return(s->method->ssl_read(s,buf,num));
853 int SSL_peek(SSL *s,void *buf,int num)
855 if (s->handshake_func == 0)
857 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
861 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
865 return(s->method->ssl_peek(s,buf,num));
868 int SSL_write(SSL *s,const void *buf,int num)
870 if (s->handshake_func == 0)
872 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
876 if (s->shutdown & SSL_SENT_SHUTDOWN)
878 s->rwstate=SSL_NOTHING;
879 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
882 return(s->method->ssl_write(s,buf,num));
885 int SSL_shutdown(SSL *s)
887 /* Note that this function behaves differently from what one might
888 * expect. Return values are 0 for no success (yet),
889 * 1 for success; but calling it once is usually not enough,
890 * even if blocking I/O is used (see ssl3_shutdown).
893 if (s->handshake_func == 0)
895 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
899 if ((s != NULL) && !SSL_in_init(s))
900 return(s->method->ssl_shutdown(s));
905 int SSL_renegotiate(SSL *s)
907 if (s->new_session == 0)
911 return(s->method->ssl_renegotiate(s));
914 int SSL_renegotiate_pending(SSL *s)
916 /* becomes true when negotiation is requested;
917 * false again once a handshake has finished */
918 return (s->new_session != 0);
921 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
927 case SSL_CTRL_GET_READ_AHEAD:
928 return(s->read_ahead);
929 case SSL_CTRL_SET_READ_AHEAD:
934 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
935 s->msg_callback_arg = parg;
938 case SSL_CTRL_OPTIONS:
939 return(s->options|=larg);
941 return(s->mode|=larg);
942 case SSL_CTRL_GET_MAX_CERT_LIST:
943 return(s->max_cert_list);
944 case SSL_CTRL_SET_MAX_CERT_LIST:
946 s->max_cert_list=larg;
949 return(s->method->ssl_ctrl(s,cmd,larg,parg));
953 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
957 case SSL_CTRL_SET_MSG_CALLBACK:
958 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
962 return(s->method->ssl_callback_ctrl(s,cmd,fp));
966 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
968 return ctx->sessions;
971 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
977 case SSL_CTRL_GET_READ_AHEAD:
978 return(ctx->read_ahead);
979 case SSL_CTRL_SET_READ_AHEAD:
981 ctx->read_ahead=larg;
984 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
985 ctx->msg_callback_arg = parg;
988 case SSL_CTRL_GET_MAX_CERT_LIST:
989 return(ctx->max_cert_list);
990 case SSL_CTRL_SET_MAX_CERT_LIST:
991 l=ctx->max_cert_list;
992 ctx->max_cert_list=larg;
995 case SSL_CTRL_SET_SESS_CACHE_SIZE:
996 l=ctx->session_cache_size;
997 ctx->session_cache_size=larg;
999 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1000 return(ctx->session_cache_size);
1001 case SSL_CTRL_SET_SESS_CACHE_MODE:
1002 l=ctx->session_cache_mode;
1003 ctx->session_cache_mode=larg;
1005 case SSL_CTRL_GET_SESS_CACHE_MODE:
1006 return(ctx->session_cache_mode);
1008 case SSL_CTRL_SESS_NUMBER:
1009 return(ctx->sessions->num_items);
1010 case SSL_CTRL_SESS_CONNECT:
1011 return(ctx->stats.sess_connect);
1012 case SSL_CTRL_SESS_CONNECT_GOOD:
1013 return(ctx->stats.sess_connect_good);
1014 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1015 return(ctx->stats.sess_connect_renegotiate);
1016 case SSL_CTRL_SESS_ACCEPT:
1017 return(ctx->stats.sess_accept);
1018 case SSL_CTRL_SESS_ACCEPT_GOOD:
1019 return(ctx->stats.sess_accept_good);
1020 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1021 return(ctx->stats.sess_accept_renegotiate);
1022 case SSL_CTRL_SESS_HIT:
1023 return(ctx->stats.sess_hit);
1024 case SSL_CTRL_SESS_CB_HIT:
1025 return(ctx->stats.sess_cb_hit);
1026 case SSL_CTRL_SESS_MISSES:
1027 return(ctx->stats.sess_miss);
1028 case SSL_CTRL_SESS_TIMEOUTS:
1029 return(ctx->stats.sess_timeout);
1030 case SSL_CTRL_SESS_CACHE_FULL:
1031 return(ctx->stats.sess_cache_full);
1032 case SSL_CTRL_OPTIONS:
1033 return(ctx->options|=larg);
1035 return(ctx->mode|=larg);
1037 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1041 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
1045 case SSL_CTRL_SET_MSG_CALLBACK:
1046 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1050 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1054 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1062 return((l > 0)?1:-1);
1065 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1066 const SSL_CIPHER * const *bp)
1070 l=(*ap)->id-(*bp)->id;
1074 return((l > 0)?1:-1);
1077 /** return a STACK of the ciphers available for the SSL and in order of
1079 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
1083 if (s->cipher_list != NULL)
1085 return(s->cipher_list);
1087 else if ((s->ctx != NULL) &&
1088 (s->ctx->cipher_list != NULL))
1090 return(s->ctx->cipher_list);
1096 /** return a STACK of the ciphers available for the SSL and in order of
1098 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1102 if (s->cipher_list_by_id != NULL)
1104 return(s->cipher_list_by_id);
1106 else if ((s->ctx != NULL) &&
1107 (s->ctx->cipher_list_by_id != NULL))
1109 return(s->ctx->cipher_list_by_id);
1115 /** The old interface to get the same thing as SSL_get_ciphers() */
1116 const char *SSL_get_cipher_list(SSL *s,int n)
1119 STACK_OF(SSL_CIPHER) *sk;
1121 if (s == NULL) return(NULL);
1122 sk=SSL_get_ciphers(s);
1123 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1125 c=sk_SSL_CIPHER_value(sk,n);
1126 if (c == NULL) return(NULL);
1130 /** specify the ciphers to be used by default by the SSL_CTX */
1131 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1133 STACK_OF(SSL_CIPHER) *sk;
1135 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1136 &ctx->cipher_list_by_id,str);
1138 return((sk == NULL)?0:1);
1141 /** specify the ciphers to be used by the SSL */
1142 int SSL_set_cipher_list(SSL *s,const char *str)
1144 STACK_OF(SSL_CIPHER) *sk;
1146 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1147 &s->cipher_list_by_id,str);
1149 return((sk == NULL)?0:1);
1152 /* works well for SSLv2, not so good for SSLv3 */
1153 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
1157 STACK_OF(SSL_CIPHER) *sk;
1161 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1166 sk=s->session->ciphers;
1167 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1169 /* Decrement for either the ':' or a '\0' */
1171 c=sk_SSL_CIPHER_value(sk,i);
1172 for (cp=c->name; *cp; )
1188 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
1193 #ifndef OPENSSL_NO_KRB5
1194 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1195 #endif /* OPENSSL_NO_KRB5 */
1197 if (sk == NULL) return(0);
1200 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1202 c=sk_SSL_CIPHER_value(sk,i);
1203 #ifndef OPENSSL_NO_KRB5
1204 if ((c->algorithms & SSL_KRB5) && nokrb5)
1206 #endif /* OPENSSL_NO_KRB5 */
1207 j=ssl_put_cipher_by_char(s,c,p);
1213 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1214 STACK_OF(SSL_CIPHER) **skp)
1217 STACK_OF(SSL_CIPHER) *sk;
1220 n=ssl_put_cipher_by_char(s,NULL,NULL);
1223 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1226 if ((skp == NULL) || (*skp == NULL))
1227 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1231 sk_SSL_CIPHER_zero(sk);
1234 for (i=0; i<num; i+=n)
1236 c=ssl_get_cipher_by_char(s,p);
1240 if (!sk_SSL_CIPHER_push(sk,c))
1242 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1252 if ((skp == NULL) || (*skp == NULL))
1253 sk_SSL_CIPHER_free(sk);
1257 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
1262 ((unsigned int) a->session_id[0] )|
1263 ((unsigned int) a->session_id[1]<< 8L)|
1264 ((unsigned long)a->session_id[2]<<16L)|
1265 ((unsigned long)a->session_id[3]<<24L);
1269 /* NB: If this function (or indeed the hash function which uses a sort of
1270 * coarser function than this one) is changed, ensure
1271 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1272 * able to construct an SSL_SESSION that will collide with any existing session
1273 * with a matching session ID. */
1274 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
1276 if (a->ssl_version != b->ssl_version)
1278 if (a->session_id_length != b->session_id_length)
1280 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1283 /* These wrapper functions should remain rather than redeclaring
1284 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1285 * variable. The reason is that the functions aren't static, they're exposed via
1287 static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *)
1288 static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *)
1290 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1296 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1300 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1302 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1305 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1309 memset(ret,0,sizeof(SSL_CTX));
1313 ret->cert_store=NULL;
1314 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1315 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1316 ret->session_cache_head=NULL;
1317 ret->session_cache_tail=NULL;
1319 /* We take the system default */
1320 ret->session_timeout=meth->get_timeout();
1322 ret->new_session_cb=0;
1323 ret->remove_session_cb=0;
1324 ret->get_session_cb=0;
1325 ret->generate_session_id=0;
1327 memset((char *)&ret->stats,0,sizeof(ret->stats));
1330 ret->quiet_shutdown=0;
1332 /* ret->cipher=NULL;*/
1333 /* ret->s2->challenge=NULL;
1334 ret->master_key=NULL;
1336 ret->s2->conn_id=NULL; */
1338 ret->info_callback=NULL;
1340 ret->app_verify_callback=0;
1341 ret->app_verify_arg=NULL;
1343 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1345 ret->msg_callback=0;
1346 ret->msg_callback_arg=NULL;
1347 ret->verify_mode=SSL_VERIFY_NONE;
1348 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1349 ret->sid_ctx_length=0;
1350 ret->default_verify_callback=NULL;
1351 if ((ret->cert=ssl_cert_new()) == NULL)
1354 ret->default_passwd_callback=0;
1355 ret->default_passwd_callback_userdata=NULL;
1356 ret->client_cert_cb=0;
1358 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash),
1359 LHASH_COMP_FN(SSL_SESSION_cmp));
1360 if (ret->sessions == NULL) goto err;
1361 ret->cert_store=X509_STORE_new();
1362 if (ret->cert_store == NULL) goto err;
1364 ssl_create_cipher_list(ret->method,
1365 &ret->cipher_list,&ret->cipher_list_by_id,
1366 SSL_DEFAULT_CIPHER_LIST);
1367 if (ret->cipher_list == NULL
1368 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1370 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1374 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1376 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1379 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1381 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1384 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1386 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1390 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1393 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1395 ret->extra_certs=NULL;
1396 ret->comp_methods=SSL_COMP_get_compression_methods();
1400 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1402 if (ret != NULL) SSL_CTX_free(ret);
1407 static void SSL_COMP_free(SSL_COMP *comp)
1408 { OPENSSL_free(comp); }
1411 void SSL_CTX_free(SSL_CTX *a)
1415 if (a == NULL) return;
1417 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1419 REF_PRINT("SSL_CTX",a);
1425 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1431 * Free internal session cache. However: the remove_cb() may reference
1432 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1433 * after the sessions were flushed.
1434 * As the ex_data handling routines might also touch the session cache,
1435 * the most secure solution seems to be: empty (flush) the cache, then
1436 * free ex_data, then finally free the cache.
1437 * (See ticket [openssl.org #212].)
1439 if (a->sessions != NULL)
1440 SSL_CTX_flush_sessions(a,0);
1442 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1444 if (a->sessions != NULL)
1445 lh_free(a->sessions);
1447 if (a->cert_store != NULL)
1448 X509_STORE_free(a->cert_store);
1449 if (a->cipher_list != NULL)
1450 sk_SSL_CIPHER_free(a->cipher_list);
1451 if (a->cipher_list_by_id != NULL)
1452 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1453 if (a->cert != NULL)
1454 ssl_cert_free(a->cert);
1455 if (a->client_CA != NULL)
1456 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1457 if (a->extra_certs != NULL)
1458 sk_X509_pop_free(a->extra_certs,X509_free);
1459 #if 0 /* This should never be done, since it removes a global database */
1460 if (a->comp_methods != NULL)
1461 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1463 a->comp_methods = NULL;
1468 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1470 ctx->default_passwd_callback=cb;
1473 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1475 ctx->default_passwd_callback_userdata=u;
1478 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1480 ctx->app_verify_callback=cb;
1481 ctx->app_verify_arg=arg;
1484 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1486 ctx->verify_mode=mode;
1487 ctx->default_verify_callback=cb;
1490 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1492 ctx->verify_depth=depth;
1495 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1498 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1499 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1500 int rsa_tmp_export,dh_tmp_export,kl;
1501 unsigned long mask,emask;
1502 int have_ecc_cert, have_ecdh_tmp, ecdh_ok, ecdsa_ok, ecc_pkey_size;
1504 EVP_PKEY *ecc_pkey = NULL;
1505 int signature_nid = 0;
1507 if (c == NULL) return;
1509 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1511 #ifndef OPENSSL_NO_RSA
1512 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1513 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1514 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1516 rsa_tmp=rsa_tmp_export=0;
1518 #ifndef OPENSSL_NO_DH
1519 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1520 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1521 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1523 dh_tmp=dh_tmp_export=0;
1526 #ifndef OPENSSL_NO_ECDH
1527 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL);
1529 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1530 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1531 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1532 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1533 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1534 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1535 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1536 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1537 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1538 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1539 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1540 /* FIX THIS EAY EAY EAY */
1541 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1542 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1543 cpk= &(c->pkeys[SSL_PKEY_ECC]);
1544 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL);
1549 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1550 rsa_tmp,rsa_tmp_export,dh_tmp,
1551 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1554 if (rsa_enc || (rsa_tmp && rsa_sign))
1556 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1560 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1561 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1562 (rsa_enc || rsa_sign || dsa_sign))
1564 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1565 (rsa_enc || rsa_sign || dsa_sign))
1575 if (dh_rsa) mask|=SSL_kDHr;
1576 if (dh_rsa_export) emask|=SSL_kDHr;
1578 if (dh_dsa) mask|=SSL_kDHd;
1579 if (dh_dsa_export) emask|=SSL_kDHd;
1581 if (rsa_enc || rsa_sign)
1596 #ifndef OPENSSL_NO_KRB5
1597 mask|=SSL_kKRB5|SSL_aKRB5;
1598 emask|=SSL_kKRB5|SSL_aKRB5;
1601 /* An ECC certificate may be usable for ECDH and/or
1602 * ECDSA cipher suites depending on the key usage extension.
1606 /* This call populates extension flags (ex_flags) */
1607 x = (c->pkeys[SSL_PKEY_ECC]).x509;
1608 X509_check_purpose(x, -1, 0);
1609 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1610 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
1611 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1612 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
1613 ecc_pkey = X509_get_pubkey(x);
1614 ecc_pkey_size = (ecc_pkey != NULL) ?
1615 EVP_PKEY_bits(ecc_pkey) : 0;
1616 EVP_PKEY_free(ecc_pkey);
1617 if ((x->sig_alg) && (x->sig_alg->algorithm))
1618 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1619 #ifndef OPENSSL_NO_ECDH
1622 if ((signature_nid == NID_md5WithRSAEncryption) ||
1623 (signature_nid == NID_md4WithRSAEncryption) ||
1624 (signature_nid == NID_md2WithRSAEncryption))
1626 mask|=SSL_kECDH|SSL_aRSA;
1627 if (ecc_pkey_size <= 163)
1628 emask|=SSL_kECDH|SSL_aRSA;
1630 if (signature_nid == NID_ecdsa_with_SHA1)
1632 mask|=SSL_kECDH|SSL_aECDSA;
1633 if (ecc_pkey_size <= 163)
1634 emask|=SSL_kECDH|SSL_aECDSA;
1638 #ifndef OPENSSL_NO_ECDSA
1647 #ifndef OPENSSL_NO_ECDH
1655 c->export_mask=emask;
1659 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
1660 #define ku_reject(x, usage) \
1661 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
1663 int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs)
1665 unsigned long alg = cs->algorithms;
1666 EVP_PKEY *pkey = NULL;
1668 int signature_nid = 0;
1670 if (SSL_C_IS_EXPORT(cs))
1672 /* ECDH key length in export ciphers must be <= 163 bits */
1673 pkey = X509_get_pubkey(x);
1674 if (pkey == NULL) return 0;
1675 keysize = EVP_PKEY_bits(pkey);
1676 EVP_PKEY_free(pkey);
1677 if (keysize > 163) return 0;
1680 /* This call populates the ex_flags field correctly */
1681 X509_check_purpose(x, -1, 0);
1682 if ((x->sig_alg) && (x->sig_alg->algorithm))
1683 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1684 if (alg & SSL_kECDH)
1686 /* key usage, if present, must allow key agreement */
1687 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
1691 if (alg & SSL_aECDSA)
1693 /* signature alg must be ECDSA */
1694 if (signature_nid != NID_ecdsa_with_SHA1)
1701 /* signature alg must be RSA */
1702 if ((signature_nid != NID_md5WithRSAEncryption) &&
1703 (signature_nid != NID_md4WithRSAEncryption) &&
1704 (signature_nid != NID_md2WithRSAEncryption))
1710 else if (alg & SSL_aECDSA)
1712 /* key usage, if present, must allow signing */
1713 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
1719 return 1; /* all checks are ok */
1722 /* THIS NEEDS CLEANING UP */
1723 X509 *ssl_get_server_send_cert(SSL *s)
1725 unsigned long alg,mask,kalg;
1730 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1731 alg=s->s3->tmp.new_cipher->algorithms;
1732 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1733 mask=is_export?c->export_mask:c->mask;
1734 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1736 if (kalg & SSL_kECDH)
1738 /* we don't need to look at SSL_kECDHE
1739 * since no certificate is needed for
1740 * anon ECDH and for authenticated
1741 * ECDHE, the check for the auth
1742 * algorithm will set i correctly
1743 * NOTE: For ECDH-RSA, we need an ECC
1744 * not an RSA cert but for ECDHE-RSA
1745 * we need an RSA cert. Placing the
1746 * checks for SSL_kECDH before RSA
1747 * checks ensures the correct cert is chosen.
1751 else if (kalg & SSL_aECDSA)
1755 else if (kalg & SSL_kDHr)
1757 else if (kalg & SSL_kDHd)
1759 else if (kalg & SSL_aDSS)
1760 i=SSL_PKEY_DSA_SIGN;
1761 else if (kalg & SSL_aRSA)
1763 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1764 i=SSL_PKEY_RSA_SIGN;
1768 else if (kalg & SSL_aKRB5)
1770 /* VRS something else here? */
1773 else /* if (kalg & SSL_aNULL) */
1775 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
1778 if (c->pkeys[i].x509 == NULL) return(NULL);
1780 return(c->pkeys[i].x509);
1783 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1788 alg=cipher->algorithms;
1791 if ((alg & SSL_aDSS) &&
1792 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1793 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1794 else if (alg & SSL_aRSA)
1796 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1797 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1798 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1799 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1803 else if ((alg & SSL_aECDSA) &&
1804 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
1805 return(c->pkeys[SSL_PKEY_ECC].privatekey);
1806 else /* if (alg & SSL_aNULL) */
1808 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
1813 void ssl_update_cache(SSL *s,int mode)
1817 /* If the session_id_length is 0, we are not supposed to cache it,
1818 * and it would be rather hard to do anyway :-) */
1819 if (s->session->session_id_length == 0) return;
1821 i=s->ctx->session_cache_mode;
1822 if ((i & mode) && (!s->hit)
1823 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
1824 || SSL_CTX_add_session(s->ctx,s->session))
1825 && (s->ctx->new_session_cb != NULL))
1827 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1828 if (!s->ctx->new_session_cb(s,s->session))
1829 SSL_SESSION_free(s->session);
1832 /* auto flush every 255 connections */
1833 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1834 ((i & mode) == mode))
1836 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1837 ?s->ctx->stats.sess_connect_good
1838 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1840 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1845 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1850 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1855 if (s->method != meth)
1857 if (s->handshake_func != NULL)
1858 conn=(s->handshake_func == s->method->ssl_connect);
1860 if (s->method->version == meth->version)
1864 s->method->ssl_free(s);
1866 ret=s->method->ssl_new(s);
1870 s->handshake_func=meth->ssl_connect;
1872 s->handshake_func=meth->ssl_accept;
1877 int SSL_get_error(SSL *s,int i)
1883 if (i > 0) return(SSL_ERROR_NONE);
1885 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1886 * etc, where we do encode the error */
1887 if ((l=ERR_peek_error()) != 0)
1889 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1890 return(SSL_ERROR_SYSCALL);
1892 return(SSL_ERROR_SSL);
1895 if ((i < 0) && SSL_want_read(s))
1897 bio=SSL_get_rbio(s);
1898 if (BIO_should_read(bio))
1899 return(SSL_ERROR_WANT_READ);
1900 else if (BIO_should_write(bio))
1901 /* This one doesn't make too much sense ... We never try
1902 * to write to the rbio, and an application program where
1903 * rbio and wbio are separate couldn't even know what it
1905 * However if we ever set s->rwstate incorrectly
1906 * (so that we have SSL_want_read(s) instead of
1907 * SSL_want_write(s)) and rbio and wbio *are* the same,
1908 * this test works around that bug; so it might be safer
1910 return(SSL_ERROR_WANT_WRITE);
1911 else if (BIO_should_io_special(bio))
1913 reason=BIO_get_retry_reason(bio);
1914 if (reason == BIO_RR_CONNECT)
1915 return(SSL_ERROR_WANT_CONNECT);
1916 else if (reason == BIO_RR_ACCEPT)
1917 return(SSL_ERROR_WANT_ACCEPT);
1919 return(SSL_ERROR_SYSCALL); /* unknown */
1923 if ((i < 0) && SSL_want_write(s))
1925 bio=SSL_get_wbio(s);
1926 if (BIO_should_write(bio))
1927 return(SSL_ERROR_WANT_WRITE);
1928 else if (BIO_should_read(bio))
1929 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1930 return(SSL_ERROR_WANT_READ);
1931 else if (BIO_should_io_special(bio))
1933 reason=BIO_get_retry_reason(bio);
1934 if (reason == BIO_RR_CONNECT)
1935 return(SSL_ERROR_WANT_CONNECT);
1936 else if (reason == BIO_RR_ACCEPT)
1937 return(SSL_ERROR_WANT_ACCEPT);
1939 return(SSL_ERROR_SYSCALL);
1942 if ((i < 0) && SSL_want_x509_lookup(s))
1944 return(SSL_ERROR_WANT_X509_LOOKUP);
1949 if (s->version == SSL2_VERSION)
1951 /* assume it is the socket being closed */
1952 return(SSL_ERROR_ZERO_RETURN);
1956 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1957 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1958 return(SSL_ERROR_ZERO_RETURN);
1961 return(SSL_ERROR_SYSCALL);
1964 int SSL_do_handshake(SSL *s)
1968 if (s->handshake_func == NULL)
1970 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1974 s->method->ssl_renegotiate_check(s);
1976 if (SSL_in_init(s) || SSL_in_before(s))
1978 ret=s->handshake_func(s);
1983 /* For the next 2 functions, SSL_clear() sets shutdown and so
1984 * one of these calls will reset it */
1985 void SSL_set_accept_state(SSL *s)
1989 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1990 s->handshake_func=s->method->ssl_accept;
1991 /* clear the current cipher */
1992 ssl_clear_cipher_ctx(s);
1995 void SSL_set_connect_state(SSL *s)
1999 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2000 s->handshake_func=s->method->ssl_connect;
2001 /* clear the current cipher */
2002 ssl_clear_cipher_ctx(s);
2005 int ssl_undefined_function(SSL *s)
2007 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2011 SSL_METHOD *ssl_bad_method(int ver)
2013 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2017 const char *SSL_get_version(SSL *s)
2019 if (s->version == TLS1_VERSION)
2021 else if (s->version == SSL3_VERSION)
2023 else if (s->version == SSL2_VERSION)
2029 SSL *SSL_dup(SSL *s)
2031 STACK_OF(X509_NAME) *sk;
2036 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2039 ret->version = s->version;
2040 ret->type = s->type;
2041 ret->method = s->method;
2043 if (s->session != NULL)
2045 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2046 SSL_copy_session_id(ret,s);
2050 /* No session has been established yet, so we have to expect
2051 * that s->cert or ret->cert will be changed later --
2052 * they should not both point to the same object,
2053 * and thus we can't use SSL_copy_session_id. */
2055 ret->method->ssl_free(ret);
2056 ret->method = s->method;
2057 ret->method->ssl_new(ret);
2059 if (s->cert != NULL)
2061 if (ret->cert != NULL)
2063 ssl_cert_free(ret->cert);
2065 ret->cert = ssl_cert_dup(s->cert);
2066 if (ret->cert == NULL)
2070 SSL_set_session_id_context(ret,
2071 s->sid_ctx, s->sid_ctx_length);
2074 ret->options=s->options;
2076 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2077 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2078 ret->msg_callback = s->msg_callback;
2079 ret->msg_callback_arg = s->msg_callback_arg;
2080 SSL_set_verify(ret,SSL_get_verify_mode(s),
2081 SSL_get_verify_callback(s));
2082 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2083 ret->generate_session_id = s->generate_session_id;
2085 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2087 ret->debug=s->debug;
2089 /* copy app data, a little dangerous perhaps */
2090 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2093 /* setup rbio, and wbio */
2094 if (s->rbio != NULL)
2096 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2099 if (s->wbio != NULL)
2101 if (s->wbio != s->rbio)
2103 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2107 ret->wbio=ret->rbio;
2109 ret->rwstate = s->rwstate;
2110 ret->in_handshake = s->in_handshake;
2111 ret->handshake_func = s->handshake_func;
2112 ret->server = s->server;
2113 ret->new_session = s->new_session;
2114 ret->quiet_shutdown = s->quiet_shutdown;
2115 ret->shutdown=s->shutdown;
2116 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2117 ret->rstate=s->rstate;
2118 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2120 ret->purpose=s->purpose;
2121 ret->trust=s->trust;
2123 /* dup the cipher_list and cipher_list_by_id stacks */
2124 if (s->cipher_list != NULL)
2126 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2129 if (s->cipher_list_by_id != NULL)
2130 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2134 /* Dup the client_CA list */
2135 if (s->client_CA != NULL)
2137 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2139 for (i=0; i<sk_X509_NAME_num(sk); i++)
2141 xn=sk_X509_NAME_value(sk,i);
2142 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2153 if (ret != NULL) SSL_free(ret);
2159 void ssl_clear_cipher_ctx(SSL *s)
2161 if (s->enc_read_ctx != NULL)
2163 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2164 OPENSSL_free(s->enc_read_ctx);
2165 s->enc_read_ctx=NULL;
2167 if (s->enc_write_ctx != NULL)
2169 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2170 OPENSSL_free(s->enc_write_ctx);
2171 s->enc_write_ctx=NULL;
2173 if (s->expand != NULL)
2175 COMP_CTX_free(s->expand);
2178 if (s->compress != NULL)
2180 COMP_CTX_free(s->compress);
2185 /* Fix this function so that it takes an optional type parameter */
2186 X509 *SSL_get_certificate(SSL *s)
2188 if (s->cert != NULL)
2189 return(s->cert->key->x509);
2194 /* Fix this function so that it takes an optional type parameter */
2195 EVP_PKEY *SSL_get_privatekey(SSL *s)
2197 if (s->cert != NULL)
2198 return(s->cert->key->privatekey);
2203 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
2205 if ((s->session != NULL) && (s->session->cipher != NULL))
2206 return(s->session->cipher);
2210 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2212 if (s->compress != NULL)
2213 return(s->compress->meth);
2217 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2219 if (s->expand != NULL)
2220 return(s->expand->meth);
2224 int ssl_init_wbio_buffer(SSL *s,int push)
2228 if (s->bbio == NULL)
2230 bbio=BIO_new(BIO_f_buffer());
2231 if (bbio == NULL) return(0);
2237 if (s->bbio == s->wbio)
2238 s->wbio=BIO_pop(s->wbio);
2240 (void)BIO_reset(bbio);
2241 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2242 if (!BIO_set_read_buffer_size(bbio,1))
2244 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2249 if (s->wbio != bbio)
2250 s->wbio=BIO_push(bbio,s->wbio);
2254 if (s->wbio == bbio)
2255 s->wbio=BIO_pop(bbio);
2260 void ssl_free_wbio_buffer(SSL *s)
2262 if (s->bbio == NULL) return;
2264 if (s->bbio == s->wbio)
2266 /* remove buffering */
2267 s->wbio=BIO_pop(s->wbio);
2268 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2269 assert(s->wbio != NULL);
2276 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2278 ctx->quiet_shutdown=mode;
2281 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
2283 return(ctx->quiet_shutdown);
2286 void SSL_set_quiet_shutdown(SSL *s,int mode)
2288 s->quiet_shutdown=mode;
2291 int SSL_get_quiet_shutdown(SSL *s)
2293 return(s->quiet_shutdown);
2296 void SSL_set_shutdown(SSL *s,int mode)
2301 int SSL_get_shutdown(SSL *s)
2303 return(s->shutdown);
2306 int SSL_version(SSL *s)
2311 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
2316 #ifndef OPENSSL_NO_STDIO
2317 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2319 return(X509_STORE_set_default_paths(ctx->cert_store));
2322 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2325 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
2329 void SSL_set_info_callback(SSL *ssl,
2330 void (*cb)(const SSL *ssl,int type,int val))
2332 ssl->info_callback=cb;
2335 void (*SSL_get_info_callback(SSL *ssl))(const SSL *ssl,int type,int val)
2337 return ssl->info_callback;
2340 int SSL_state(SSL *ssl)
2345 void SSL_set_verify_result(SSL *ssl,long arg)
2347 ssl->verify_result=arg;
2350 long SSL_get_verify_result(SSL *ssl)
2352 return(ssl->verify_result);
2355 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2356 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2358 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2359 new_func, dup_func, free_func);
2362 int SSL_set_ex_data(SSL *s,int idx,void *arg)
2364 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2367 void *SSL_get_ex_data(SSL *s,int idx)
2369 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2372 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2373 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2375 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2376 new_func, dup_func, free_func);
2379 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2381 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2384 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
2386 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2394 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
2396 return(ctx->cert_store);
2399 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2401 if (ctx->cert_store != NULL)
2402 X509_STORE_free(ctx->cert_store);
2403 ctx->cert_store=store;
2406 int SSL_want(SSL *s)
2412 * \brief Set the callback for generating temporary RSA keys.
2413 * \param ctx the SSL context.
2414 * \param cb the callback
2417 #ifndef OPENSSL_NO_RSA
2418 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2422 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2425 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2429 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2435 * \brief The RSA temporary key callback function.
2436 * \param ssl the SSL session.
2437 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2438 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2439 * of the required key in bits.
2440 * \return the temporary RSA key.
2441 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2444 RSA *cb(SSL *ssl,int is_export,int keylength)
2449 * \brief Set the callback for generating temporary DH keys.
2450 * \param ctx the SSL context.
2451 * \param dh the callback
2454 #ifndef OPENSSL_NO_DH
2455 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2458 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2461 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2464 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2468 #ifndef OPENSSL_NO_ECDH
2469 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2472 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)())ecdh);
2475 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2478 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)())ecdh);
2483 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))
2485 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb);
2487 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))
2489 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb);
2494 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2495 #include "../crypto/bio/bss_file.c"
2498 IMPLEMENT_STACK_OF(SSL_CIPHER)
2499 IMPLEMENT_STACK_OF(SSL_COMP)