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>
129 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
131 OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={
132 /* evil casts, but these functions are only called if there's a library bug */
133 (int (*)(SSL *,int))ssl_undefined_function,
134 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
135 ssl_undefined_function,
136 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
137 (int (*)(SSL*, int))ssl_undefined_function,
138 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function
141 int SSL_clear(SSL *s)
144 if (s->method == NULL)
146 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
150 if (ssl_clear_bad_session(s))
152 SSL_SESSION_free(s->session);
160 #if 0 /* Disabled since version 1.10 of this file (early return not
161 * needed because SSL_clear is not called when doing renegotiation) */
162 /* This is set if we are doing dynamic renegotiation so keep
163 * the old cipher. It is sort of a SSL_clear_lite :-) */
164 if (s->new_session) return(1);
168 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
175 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
177 s->version=s->method->version;
178 s->client_version=s->version;
179 s->rwstate=SSL_NOTHING;
180 s->rstate=SSL_ST_READ_HEADER;
182 s->read_ahead=s->ctx->read_ahead;
185 if (s->init_buf != NULL)
187 BUF_MEM_free(s->init_buf);
191 ssl_clear_cipher_ctx(s);
196 /* Check to see if we were changed into a different method, if
197 * so, revert back if we are not doing session-id reuse. */
198 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
200 s->method->ssl_free(s);
201 s->method=s->ctx->method;
202 if (!s->method->ssl_new(s))
207 s->method->ssl_clear(s);
211 /** Used to change an SSL_CTXs default SSL method type */
212 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
214 STACK_OF(SSL_CIPHER) *sk;
218 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
219 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
220 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
222 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
228 SSL *SSL_new(SSL_CTX *ctx)
234 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
237 if (ctx->method == NULL)
239 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
243 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
244 if (s == NULL) goto err;
245 memset(s,0,sizeof(SSL));
247 #ifndef OPENSSL_NO_KRB5
248 s->kssl_ctx = kssl_ctx_new();
249 #endif /* OPENSSL_NO_KRB5 */
251 s->options=ctx->options;
253 s->max_cert_list=ctx->max_cert_list;
255 if (ctx->cert != NULL)
257 /* Earlier library versions used to copy the pointer to
258 * the CERT, not its contents; only when setting new
259 * parameters for the per-SSL copy, ssl_cert_new would be
260 * called (and the direct reference to the per-SSL_CTX
261 * settings would be lost, but those still were indirectly
262 * accessed for various purposes, and for that reason they
263 * used to be known as s->ctx->default_cert).
264 * Now we don't look at the SSL_CTX's CERT after having
265 * duplicated it once. */
267 s->cert = ssl_cert_dup(ctx->cert);
272 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
274 s->read_ahead=ctx->read_ahead;
275 s->msg_callback=ctx->msg_callback;
276 s->msg_callback_arg=ctx->msg_callback_arg;
277 s->verify_mode=ctx->verify_mode;
278 s->verify_depth=ctx->verify_depth;
279 s->sid_ctx_length=ctx->sid_ctx_length;
280 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
281 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
282 s->verify_callback=ctx->default_verify_callback;
283 s->generate_session_id=ctx->generate_session_id;
284 s->purpose = ctx->purpose;
285 s->trust = ctx->trust;
286 s->quiet_shutdown=ctx->quiet_shutdown;
288 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
291 s->verify_result=X509_V_OK;
293 s->method=ctx->method;
295 if (!s->method->ssl_new(s))
299 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
303 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
310 ssl_cert_free(s->cert);
312 SSL_CTX_free(s->ctx); /* decrement reference count */
315 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
319 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
320 unsigned int sid_ctx_len)
322 if(sid_ctx_len > sizeof ctx->sid_ctx)
324 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
327 ctx->sid_ctx_length=sid_ctx_len;
328 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
333 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
334 unsigned int sid_ctx_len)
336 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
338 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
341 ssl->sid_ctx_length=sid_ctx_len;
342 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
347 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
349 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
350 ctx->generate_session_id = cb;
351 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
355 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
357 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
358 ssl->generate_session_id = cb;
359 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
363 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
366 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
367 * we can "construct" a session to give us the desired check - ie. to
368 * find if there's a session in the hash table that would conflict with
369 * any new session built out of this id/id_len and the ssl_version in
370 * use by this SSL. */
373 if(id_len > sizeof r.session_id)
376 r.ssl_version = ssl->version;
377 r.session_id_length = id_len;
378 memcpy(r.session_id, id, id_len);
379 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
380 * callback is calling us to check the uniqueness of a shorter ID, it
381 * must be compared as a padded-out ID because that is what it will be
382 * converted to when the callback has finished choosing it. */
383 if((r.ssl_version == SSL2_VERSION) &&
384 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
386 memset(r.session_id + id_len, 0,
387 SSL2_SSL_SESSION_ID_LENGTH - id_len);
388 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
391 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
392 p = (SSL_SESSION *)lh_retrieve(ssl->ctx->sessions, &r);
393 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
397 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
399 return X509_PURPOSE_set(&s->purpose, purpose);
402 int SSL_set_purpose(SSL *s, int purpose)
404 return X509_PURPOSE_set(&s->purpose, purpose);
407 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
409 return X509_TRUST_set(&s->trust, trust);
412 int SSL_set_trust(SSL *s, int trust)
414 return X509_TRUST_set(&s->trust, trust);
417 void SSL_free(SSL *s)
424 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
432 fprintf(stderr,"SSL_free, bad reference count\n");
437 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
441 /* If the buffering BIO is in place, pop it off */
442 if (s->bbio == s->wbio)
444 s->wbio=BIO_pop(s->wbio);
450 BIO_free_all(s->rbio);
451 if ((s->wbio != NULL) && (s->wbio != s->rbio))
452 BIO_free_all(s->wbio);
454 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
456 /* add extra stuff */
457 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
458 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
460 /* Make the next call work :-) */
461 if (s->session != NULL)
463 ssl_clear_bad_session(s);
464 SSL_SESSION_free(s->session);
467 ssl_clear_cipher_ctx(s);
469 if (s->cert != NULL) ssl_cert_free(s->cert);
470 /* Free up if allocated */
472 if (s->ctx) SSL_CTX_free(s->ctx);
474 if (s->client_CA != NULL)
475 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
477 if (s->method != NULL) s->method->ssl_free(s);
479 #ifndef OPENSSL_NO_KRB5
480 if (s->kssl_ctx != NULL)
481 kssl_ctx_free(s->kssl_ctx);
482 #endif /* OPENSSL_NO_KRB5 */
487 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
489 /* If the output buffering BIO is still in place, remove it
493 if (s->wbio == s->bbio)
495 s->wbio=s->wbio->next_bio;
496 s->bbio->next_bio=NULL;
499 if ((s->rbio != NULL) && (s->rbio != rbio))
500 BIO_free_all(s->rbio);
501 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
502 BIO_free_all(s->wbio);
507 BIO *SSL_get_rbio(SSL *s)
510 BIO *SSL_get_wbio(SSL *s)
513 int SSL_get_fd(SSL *s)
515 return(SSL_get_rfd(s));
518 int SSL_get_rfd(SSL *s)
524 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
530 int SSL_get_wfd(SSL *s)
536 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
542 #ifndef OPENSSL_NO_SOCK
543 int SSL_set_fd(SSL *s,int fd)
548 bio=BIO_new(BIO_s_socket());
552 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
555 BIO_set_fd(bio,fd,BIO_NOCLOSE);
556 SSL_set_bio(s,bio,bio);
562 int SSL_set_wfd(SSL *s,int fd)
567 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
568 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
570 bio=BIO_new(BIO_s_socket());
573 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
574 BIO_set_fd(bio,fd,BIO_NOCLOSE);
575 SSL_set_bio(s,SSL_get_rbio(s),bio);
578 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
584 int SSL_set_rfd(SSL *s,int fd)
589 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
590 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
592 bio=BIO_new(BIO_s_socket());
596 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
599 BIO_set_fd(bio,fd,BIO_NOCLOSE);
600 SSL_set_bio(s,bio,SSL_get_wbio(s));
603 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
611 /* return length of latest Finished message we sent, copy to 'buf' */
612 size_t SSL_get_finished(SSL *s, void *buf, size_t count)
618 ret = s->s3->tmp.finish_md_len;
621 memcpy(buf, s->s3->tmp.finish_md, count);
626 /* return length of latest Finished message we expected, copy to 'buf' */
627 size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count)
633 ret = s->s3->tmp.peer_finish_md_len;
636 memcpy(buf, s->s3->tmp.peer_finish_md, count);
642 int SSL_get_verify_mode(SSL *s)
644 return(s->verify_mode);
647 int SSL_get_verify_depth(SSL *s)
649 return(s->verify_depth);
652 int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
654 return(s->verify_callback);
657 int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
659 return(ctx->verify_mode);
662 int SSL_CTX_get_verify_depth(SSL_CTX *ctx)
664 return(ctx->verify_depth);
667 int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
669 return(ctx->default_verify_callback);
672 void SSL_set_verify(SSL *s,int mode,
673 int (*callback)(int ok,X509_STORE_CTX *ctx))
676 if (callback != NULL)
677 s->verify_callback=callback;
680 void SSL_set_verify_depth(SSL *s,int depth)
682 s->verify_depth=depth;
685 void SSL_set_read_ahead(SSL *s,int yes)
690 int SSL_get_read_ahead(SSL *s)
692 return(s->read_ahead);
695 int SSL_pending(SSL *s)
697 /* SSL_pending cannot work properly if read-ahead is enabled
698 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
699 * and it is impossible to fix since SSL_pending cannot report
700 * errors that may be observed while scanning the new data.
701 * (Note that SSL_pending() is often used as a boolean value,
702 * so we'd better not return -1.)
704 return(s->method->ssl_pending(s));
707 X509 *SSL_get_peer_certificate(SSL *s)
711 if ((s == NULL) || (s->session == NULL))
716 if (r == NULL) return(r);
718 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
723 STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
727 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
730 r=s->session->sess_cert->cert_chain;
732 /* If we are a client, cert_chain includes the peer's own
733 * certificate; if we are a server, it does not. */
738 /* Now in theory, since the calling process own 't' it should be safe to
739 * modify. We need to be able to read f without being hassled */
740 void SSL_copy_session_id(SSL *t,SSL *f)
744 /* Do we need to to SSL locking? */
745 SSL_set_session(t,SSL_get_session(f));
747 /* what if we are setup as SSLv2 but want to talk SSLv3 or
749 if (t->method != f->method)
751 t->method->ssl_free(t); /* cleanup current */
752 t->method=f->method; /* change method */
753 t->method->ssl_new(t); /* setup new */
759 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
764 if (tmp != NULL) ssl_cert_free(tmp);
765 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
768 /* Fix this so it checks all the valid key/cert options */
769 int SSL_CTX_check_private_key(SSL_CTX *ctx)
771 if ( (ctx == NULL) ||
772 (ctx->cert == NULL) ||
773 (ctx->cert->key->x509 == NULL))
775 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
778 if (ctx->cert->key->privatekey == NULL)
780 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
783 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
786 /* Fix this function so that it takes an optional type parameter */
787 int SSL_check_private_key(SSL *ssl)
791 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
794 if (ssl->cert == NULL)
796 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
799 if (ssl->cert->key->x509 == NULL)
801 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
804 if (ssl->cert->key->privatekey == NULL)
806 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
809 return(X509_check_private_key(ssl->cert->key->x509,
810 ssl->cert->key->privatekey));
813 int SSL_accept(SSL *s)
815 if (s->handshake_func == 0)
816 /* Not properly initialized yet */
817 SSL_set_accept_state(s);
819 return(s->method->ssl_accept(s));
822 int SSL_connect(SSL *s)
824 if (s->handshake_func == 0)
825 /* Not properly initialized yet */
826 SSL_set_connect_state(s);
828 return(s->method->ssl_connect(s));
831 long SSL_get_default_timeout(SSL *s)
833 return(s->method->get_timeout());
836 int SSL_read(SSL *s,void *buf,int num)
838 if (s->handshake_func == 0)
840 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
844 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
846 s->rwstate=SSL_NOTHING;
849 return(s->method->ssl_read(s,buf,num));
852 int SSL_peek(SSL *s,void *buf,int num)
854 if (s->handshake_func == 0)
856 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
860 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
864 return(s->method->ssl_peek(s,buf,num));
867 int SSL_write(SSL *s,const void *buf,int num)
869 if (s->handshake_func == 0)
871 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
875 if (s->shutdown & SSL_SENT_SHUTDOWN)
877 s->rwstate=SSL_NOTHING;
878 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
881 return(s->method->ssl_write(s,buf,num));
884 int SSL_shutdown(SSL *s)
886 /* Note that this function behaves differently from what one might
887 * expect. Return values are 0 for no success (yet),
888 * 1 for success; but calling it once is usually not enough,
889 * even if blocking I/O is used (see ssl3_shutdown).
892 if (s->handshake_func == 0)
894 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
898 if ((s != NULL) && !SSL_in_init(s))
899 return(s->method->ssl_shutdown(s));
904 int SSL_renegotiate(SSL *s)
906 if (s->new_session == 0)
910 return(s->method->ssl_renegotiate(s));
913 int SSL_renegotiate_pending(SSL *s)
915 /* becomes true when negotiation is requested;
916 * false again once a handshake has finished */
917 return (s->new_session != 0);
920 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
926 case SSL_CTRL_GET_READ_AHEAD:
927 return(s->read_ahead);
928 case SSL_CTRL_SET_READ_AHEAD:
933 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
934 s->msg_callback_arg = parg;
937 case SSL_CTRL_OPTIONS:
938 return(s->options|=larg);
940 return(s->mode|=larg);
941 case SSL_CTRL_GET_MAX_CERT_LIST:
942 return(s->max_cert_list);
943 case SSL_CTRL_SET_MAX_CERT_LIST:
945 s->max_cert_list=larg;
948 return(s->method->ssl_ctrl(s,cmd,larg,parg));
952 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
956 case SSL_CTRL_SET_MSG_CALLBACK:
957 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
961 return(s->method->ssl_callback_ctrl(s,cmd,fp));
965 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
967 return ctx->sessions;
970 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
976 case SSL_CTRL_GET_READ_AHEAD:
977 return(ctx->read_ahead);
978 case SSL_CTRL_SET_READ_AHEAD:
980 ctx->read_ahead=larg;
983 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
984 ctx->msg_callback_arg = parg;
987 case SSL_CTRL_GET_MAX_CERT_LIST:
988 return(ctx->max_cert_list);
989 case SSL_CTRL_SET_MAX_CERT_LIST:
990 l=ctx->max_cert_list;
991 ctx->max_cert_list=larg;
994 case SSL_CTRL_SET_SESS_CACHE_SIZE:
995 l=ctx->session_cache_size;
996 ctx->session_cache_size=larg;
998 case SSL_CTRL_GET_SESS_CACHE_SIZE:
999 return(ctx->session_cache_size);
1000 case SSL_CTRL_SET_SESS_CACHE_MODE:
1001 l=ctx->session_cache_mode;
1002 ctx->session_cache_mode=larg;
1004 case SSL_CTRL_GET_SESS_CACHE_MODE:
1005 return(ctx->session_cache_mode);
1007 case SSL_CTRL_SESS_NUMBER:
1008 return(ctx->sessions->num_items);
1009 case SSL_CTRL_SESS_CONNECT:
1010 return(ctx->stats.sess_connect);
1011 case SSL_CTRL_SESS_CONNECT_GOOD:
1012 return(ctx->stats.sess_connect_good);
1013 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1014 return(ctx->stats.sess_connect_renegotiate);
1015 case SSL_CTRL_SESS_ACCEPT:
1016 return(ctx->stats.sess_accept);
1017 case SSL_CTRL_SESS_ACCEPT_GOOD:
1018 return(ctx->stats.sess_accept_good);
1019 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1020 return(ctx->stats.sess_accept_renegotiate);
1021 case SSL_CTRL_SESS_HIT:
1022 return(ctx->stats.sess_hit);
1023 case SSL_CTRL_SESS_CB_HIT:
1024 return(ctx->stats.sess_cb_hit);
1025 case SSL_CTRL_SESS_MISSES:
1026 return(ctx->stats.sess_miss);
1027 case SSL_CTRL_SESS_TIMEOUTS:
1028 return(ctx->stats.sess_timeout);
1029 case SSL_CTRL_SESS_CACHE_FULL:
1030 return(ctx->stats.sess_cache_full);
1031 case SSL_CTRL_OPTIONS:
1032 return(ctx->options|=larg);
1034 return(ctx->mode|=larg);
1036 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1040 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
1044 case SSL_CTRL_SET_MSG_CALLBACK:
1045 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1049 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1053 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1061 return((l > 0)?1:-1);
1064 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1065 const SSL_CIPHER * const *bp)
1069 l=(*ap)->id-(*bp)->id;
1073 return((l > 0)?1:-1);
1076 /** return a STACK of the ciphers available for the SSL and in order of
1078 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
1082 if (s->cipher_list != NULL)
1084 return(s->cipher_list);
1086 else if ((s->ctx != NULL) &&
1087 (s->ctx->cipher_list != NULL))
1089 return(s->ctx->cipher_list);
1095 /** return a STACK of the ciphers available for the SSL and in order of
1097 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1101 if (s->cipher_list_by_id != NULL)
1103 return(s->cipher_list_by_id);
1105 else if ((s->ctx != NULL) &&
1106 (s->ctx->cipher_list_by_id != NULL))
1108 return(s->ctx->cipher_list_by_id);
1114 /** The old interface to get the same thing as SSL_get_ciphers() */
1115 const char *SSL_get_cipher_list(SSL *s,int n)
1118 STACK_OF(SSL_CIPHER) *sk;
1120 if (s == NULL) return(NULL);
1121 sk=SSL_get_ciphers(s);
1122 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1124 c=sk_SSL_CIPHER_value(sk,n);
1125 if (c == NULL) return(NULL);
1129 /** specify the ciphers to be used by default by the SSL_CTX */
1130 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1132 STACK_OF(SSL_CIPHER) *sk;
1134 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1135 &ctx->cipher_list_by_id,str);
1137 return((sk == NULL)?0:1);
1140 /** specify the ciphers to be used by the SSL */
1141 int SSL_set_cipher_list(SSL *s,const char *str)
1143 STACK_OF(SSL_CIPHER) *sk;
1145 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1146 &s->cipher_list_by_id,str);
1148 return((sk == NULL)?0:1);
1151 /* works well for SSLv2, not so good for SSLv3 */
1152 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
1156 STACK_OF(SSL_CIPHER) *sk;
1160 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1165 sk=s->session->ciphers;
1166 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1168 /* Decrement for either the ':' or a '\0' */
1170 c=sk_SSL_CIPHER_value(sk,i);
1171 for (cp=c->name; *cp; )
1187 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
1192 #ifndef OPENSSL_NO_KRB5
1193 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1194 #endif /* OPENSSL_NO_KRB5 */
1196 if (sk == NULL) return(0);
1199 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1201 c=sk_SSL_CIPHER_value(sk,i);
1202 #ifndef OPENSSL_NO_KRB5
1203 if ((c->algorithms & SSL_KRB5) && nokrb5)
1205 #endif /* OPENSSL_NO_KRB5 */
1206 j=ssl_put_cipher_by_char(s,c,p);
1212 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1213 STACK_OF(SSL_CIPHER) **skp)
1216 STACK_OF(SSL_CIPHER) *sk;
1219 n=ssl_put_cipher_by_char(s,NULL,NULL);
1222 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1225 if ((skp == NULL) || (*skp == NULL))
1226 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1230 sk_SSL_CIPHER_zero(sk);
1233 for (i=0; i<num; i+=n)
1235 c=ssl_get_cipher_by_char(s,p);
1239 if (!sk_SSL_CIPHER_push(sk,c))
1241 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1251 if ((skp == NULL) || (*skp == NULL))
1252 sk_SSL_CIPHER_free(sk);
1256 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
1261 ((unsigned int) a->session_id[0] )|
1262 ((unsigned int) a->session_id[1]<< 8L)|
1263 ((unsigned long)a->session_id[2]<<16L)|
1264 ((unsigned long)a->session_id[3]<<24L);
1268 /* NB: If this function (or indeed the hash function which uses a sort of
1269 * coarser function than this one) is changed, ensure
1270 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1271 * able to construct an SSL_SESSION that will collide with any existing session
1272 * with a matching session ID. */
1273 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
1275 if (a->ssl_version != b->ssl_version)
1277 if (a->session_id_length != b->session_id_length)
1279 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1282 /* These wrapper functions should remain rather than redeclaring
1283 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1284 * variable. The reason is that the functions aren't static, they're exposed via
1286 static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *)
1287 static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *)
1289 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1295 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1299 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1301 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1304 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1308 memset(ret,0,sizeof(SSL_CTX));
1312 ret->cert_store=NULL;
1313 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1314 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1315 ret->session_cache_head=NULL;
1316 ret->session_cache_tail=NULL;
1318 /* We take the system default */
1319 ret->session_timeout=meth->get_timeout();
1321 ret->new_session_cb=0;
1322 ret->remove_session_cb=0;
1323 ret->get_session_cb=0;
1324 ret->generate_session_id=0;
1326 memset((char *)&ret->stats,0,sizeof(ret->stats));
1329 ret->quiet_shutdown=0;
1331 /* ret->cipher=NULL;*/
1332 /* ret->s2->challenge=NULL;
1333 ret->master_key=NULL;
1335 ret->s2->conn_id=NULL; */
1337 ret->info_callback=NULL;
1339 ret->app_verify_callback=0;
1340 ret->app_verify_arg=NULL;
1342 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1344 ret->msg_callback=0;
1345 ret->msg_callback_arg=NULL;
1346 ret->verify_mode=SSL_VERIFY_NONE;
1347 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1348 ret->sid_ctx_length=0;
1349 ret->default_verify_callback=NULL;
1350 if ((ret->cert=ssl_cert_new()) == NULL)
1353 ret->default_passwd_callback=0;
1354 ret->default_passwd_callback_userdata=NULL;
1355 ret->client_cert_cb=0;
1357 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash),
1358 LHASH_COMP_FN(SSL_SESSION_cmp));
1359 if (ret->sessions == NULL) goto err;
1360 ret->cert_store=X509_STORE_new();
1361 if (ret->cert_store == NULL) goto err;
1363 ssl_create_cipher_list(ret->method,
1364 &ret->cipher_list,&ret->cipher_list_by_id,
1365 SSL_DEFAULT_CIPHER_LIST);
1366 if (ret->cipher_list == NULL
1367 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1369 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1373 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1375 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1378 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1380 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1383 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1385 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1389 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1392 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1394 ret->extra_certs=NULL;
1395 ret->comp_methods=SSL_COMP_get_compression_methods();
1399 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1401 if (ret != NULL) SSL_CTX_free(ret);
1406 static void SSL_COMP_free(SSL_COMP *comp)
1407 { OPENSSL_free(comp); }
1410 void SSL_CTX_free(SSL_CTX *a)
1414 if (a == NULL) return;
1416 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1418 REF_PRINT("SSL_CTX",a);
1424 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1430 * Free internal session cache. However: the remove_cb() may reference
1431 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1432 * after the sessions were flushed.
1433 * As the ex_data handling routines might also touch the session cache,
1434 * the most secure solution seems to be: empty (flush) the cache, then
1435 * free ex_data, then finally free the cache.
1436 * (See ticket [openssl.org #212].)
1438 if (a->sessions != NULL)
1439 SSL_CTX_flush_sessions(a,0);
1441 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1443 if (a->sessions != NULL)
1444 lh_free(a->sessions);
1446 if (a->cert_store != NULL)
1447 X509_STORE_free(a->cert_store);
1448 if (a->cipher_list != NULL)
1449 sk_SSL_CIPHER_free(a->cipher_list);
1450 if (a->cipher_list_by_id != NULL)
1451 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1452 if (a->cert != NULL)
1453 ssl_cert_free(a->cert);
1454 if (a->client_CA != NULL)
1455 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1456 if (a->extra_certs != NULL)
1457 sk_X509_pop_free(a->extra_certs,X509_free);
1458 #if 0 /* This should never be done, since it removes a global database */
1459 if (a->comp_methods != NULL)
1460 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1462 a->comp_methods = NULL;
1467 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1469 ctx->default_passwd_callback=cb;
1472 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1474 ctx->default_passwd_callback_userdata=u;
1477 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1479 ctx->app_verify_callback=cb;
1480 ctx->app_verify_arg=arg;
1483 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1485 ctx->verify_mode=mode;
1486 ctx->default_verify_callback=cb;
1489 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1491 ctx->verify_depth=depth;
1494 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1497 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1498 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1499 int rsa_tmp_export,dh_tmp_export,kl;
1500 unsigned long mask,emask;
1501 int have_ecc_cert, have_ecdh_tmp, ecdh_ok, ecdsa_ok, ecc_pkey_size;
1503 EVP_PKEY *ecc_pkey = NULL;
1504 int signature_nid = 0;
1506 if (c == NULL) return;
1508 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1510 #ifndef OPENSSL_NO_RSA
1511 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1512 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1513 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1515 rsa_tmp=rsa_tmp_export=0;
1517 #ifndef OPENSSL_NO_DH
1518 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1519 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1520 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1522 dh_tmp=dh_tmp_export=0;
1525 #ifndef OPENSSL_NO_ECDH
1526 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL);
1528 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1529 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1530 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1531 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1532 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1533 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1534 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1535 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1536 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1537 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1538 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1539 /* FIX THIS EAY EAY EAY */
1540 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1541 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1542 cpk= &(c->pkeys[SSL_PKEY_ECC]);
1543 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL);
1548 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1549 rsa_tmp,rsa_tmp_export,dh_tmp,
1550 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1553 if (rsa_enc || (rsa_tmp && rsa_sign))
1555 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1559 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1560 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1561 (rsa_enc || rsa_sign || dsa_sign))
1563 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1564 (rsa_enc || rsa_sign || dsa_sign))
1574 if (dh_rsa) mask|=SSL_kDHr;
1575 if (dh_rsa_export) emask|=SSL_kDHr;
1577 if (dh_dsa) mask|=SSL_kDHd;
1578 if (dh_dsa_export) emask|=SSL_kDHd;
1580 if (rsa_enc || rsa_sign)
1595 #ifndef OPENSSL_NO_KRB5
1596 mask|=SSL_kKRB5|SSL_aKRB5;
1597 emask|=SSL_kKRB5|SSL_aKRB5;
1600 /* An ECC certificate may be usable for ECDH and/or
1601 * ECDSA cipher suites depending on the key usage extension.
1605 /* This call populates extension flags (ex_flags) */
1606 x = (c->pkeys[SSL_PKEY_ECC]).x509;
1607 X509_check_purpose(x, -1, 0);
1608 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1609 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
1610 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1611 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
1612 ecc_pkey = X509_get_pubkey(x);
1613 ecc_pkey_size = (ecc_pkey != NULL) ?
1614 EVP_PKEY_bits(ecc_pkey) : 0;
1615 EVP_PKEY_free(ecc_pkey);
1616 if ((x->sig_alg) && (x->sig_alg->algorithm))
1617 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1618 #ifndef OPENSSL_NO_ECDH
1621 if ((signature_nid == NID_md5WithRSAEncryption) ||
1622 (signature_nid == NID_md4WithRSAEncryption) ||
1623 (signature_nid == NID_md2WithRSAEncryption))
1625 mask|=SSL_kECDH|SSL_aRSA;
1626 if (ecc_pkey_size <= 163)
1627 emask|=SSL_kECDH|SSL_aRSA;
1629 if (signature_nid == NID_ecdsa_with_SHA1)
1631 mask|=SSL_kECDH|SSL_aECDSA;
1632 if (ecc_pkey_size <= 163)
1633 emask|=SSL_kECDH|SSL_aECDSA;
1637 #ifndef OPENSSL_NO_ECDSA
1646 #ifndef OPENSSL_NO_ECDH
1654 c->export_mask=emask;
1658 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
1659 #define ku_reject(x, usage) \
1660 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
1662 int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs)
1664 unsigned long alg = cs->algorithms;
1665 EVP_PKEY *pkey = NULL;
1667 int signature_nid = 0;
1669 if (SSL_C_IS_EXPORT(cs))
1671 /* ECDH key length in export ciphers must be <= 163 bits */
1672 pkey = X509_get_pubkey(x);
1673 if (pkey == NULL) return 0;
1674 keysize = EVP_PKEY_bits(pkey);
1675 EVP_PKEY_free(pkey);
1676 if (keysize > 163) return 0;
1679 /* This call populates the ex_flags field correctly */
1680 X509_check_purpose(x, -1, 0);
1681 if ((x->sig_alg) && (x->sig_alg->algorithm))
1682 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1683 if (alg & SSL_kECDH)
1685 /* key usage, if present, must allow key agreement */
1686 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
1690 if (alg & SSL_aECDSA)
1692 /* signature alg must be ECDSA */
1693 if (signature_nid != NID_ecdsa_with_SHA1)
1700 /* signature alg must be RSA */
1701 if ((signature_nid != NID_md5WithRSAEncryption) &&
1702 (signature_nid != NID_md4WithRSAEncryption) &&
1703 (signature_nid != NID_md2WithRSAEncryption))
1709 else if (alg & SSL_aECDSA)
1711 /* key usage, if present, must allow signing */
1712 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
1718 return 1; /* all checks are ok */
1721 /* THIS NEEDS CLEANING UP */
1722 X509 *ssl_get_server_send_cert(SSL *s)
1724 unsigned long alg,mask,kalg;
1729 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1730 alg=s->s3->tmp.new_cipher->algorithms;
1731 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1732 mask=is_export?c->export_mask:c->mask;
1733 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1735 if (kalg & SSL_kECDH)
1737 /* we don't need to look at SSL_kECDHE
1738 * since no certificate is needed for
1739 * anon ECDH and for authenticated
1740 * ECDHE, the check for the auth
1741 * algorithm will set i correctly
1742 * NOTE: For ECDH-RSA, we need an ECC
1743 * not an RSA cert but for ECDHE-RSA
1744 * we need an RSA cert. Placing the
1745 * checks for SSL_kECDH before RSA
1746 * checks ensures the correct cert is chosen.
1750 else if (kalg & SSL_aECDSA)
1754 else if (kalg & SSL_kDHr)
1756 else if (kalg & SSL_kDHd)
1758 else if (kalg & SSL_aDSS)
1759 i=SSL_PKEY_DSA_SIGN;
1760 else if (kalg & SSL_aRSA)
1762 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1763 i=SSL_PKEY_RSA_SIGN;
1767 else if (kalg & SSL_aKRB5)
1769 /* VRS something else here? */
1772 else /* if (kalg & SSL_aNULL) */
1774 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
1777 if (c->pkeys[i].x509 == NULL) return(NULL);
1779 return(c->pkeys[i].x509);
1782 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1787 alg=cipher->algorithms;
1790 if ((alg & SSL_aDSS) &&
1791 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1792 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1793 else if (alg & SSL_aRSA)
1795 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1796 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1797 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1798 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1802 else if ((alg & SSL_aECDSA) &&
1803 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
1804 return(c->pkeys[SSL_PKEY_ECC].privatekey);
1805 else /* if (alg & SSL_aNULL) */
1807 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
1812 void ssl_update_cache(SSL *s,int mode)
1816 /* If the session_id_length is 0, we are not supposed to cache it,
1817 * and it would be rather hard to do anyway :-) */
1818 if (s->session->session_id_length == 0) return;
1820 i=s->ctx->session_cache_mode;
1821 if ((i & mode) && (!s->hit)
1822 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
1823 || SSL_CTX_add_session(s->ctx,s->session))
1824 && (s->ctx->new_session_cb != NULL))
1826 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1827 if (!s->ctx->new_session_cb(s,s->session))
1828 SSL_SESSION_free(s->session);
1831 /* auto flush every 255 connections */
1832 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1833 ((i & mode) == mode))
1835 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1836 ?s->ctx->stats.sess_connect_good
1837 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1839 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1844 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1849 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1854 if (s->method != meth)
1856 if (s->handshake_func != NULL)
1857 conn=(s->handshake_func == s->method->ssl_connect);
1859 if (s->method->version == meth->version)
1863 s->method->ssl_free(s);
1865 ret=s->method->ssl_new(s);
1869 s->handshake_func=meth->ssl_connect;
1871 s->handshake_func=meth->ssl_accept;
1876 int SSL_get_error(SSL *s,int i)
1882 if (i > 0) return(SSL_ERROR_NONE);
1884 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1885 * etc, where we do encode the error */
1886 if ((l=ERR_peek_error()) != 0)
1888 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1889 return(SSL_ERROR_SYSCALL);
1891 return(SSL_ERROR_SSL);
1894 if ((i < 0) && SSL_want_read(s))
1896 bio=SSL_get_rbio(s);
1897 if (BIO_should_read(bio))
1898 return(SSL_ERROR_WANT_READ);
1899 else if (BIO_should_write(bio))
1900 /* This one doesn't make too much sense ... We never try
1901 * to write to the rbio, and an application program where
1902 * rbio and wbio are separate couldn't even know what it
1904 * However if we ever set s->rwstate incorrectly
1905 * (so that we have SSL_want_read(s) instead of
1906 * SSL_want_write(s)) and rbio and wbio *are* the same,
1907 * this test works around that bug; so it might be safer
1909 return(SSL_ERROR_WANT_WRITE);
1910 else if (BIO_should_io_special(bio))
1912 reason=BIO_get_retry_reason(bio);
1913 if (reason == BIO_RR_CONNECT)
1914 return(SSL_ERROR_WANT_CONNECT);
1915 else if (reason == BIO_RR_ACCEPT)
1916 return(SSL_ERROR_WANT_ACCEPT);
1918 return(SSL_ERROR_SYSCALL); /* unknown */
1922 if ((i < 0) && SSL_want_write(s))
1924 bio=SSL_get_wbio(s);
1925 if (BIO_should_write(bio))
1926 return(SSL_ERROR_WANT_WRITE);
1927 else if (BIO_should_read(bio))
1928 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1929 return(SSL_ERROR_WANT_READ);
1930 else if (BIO_should_io_special(bio))
1932 reason=BIO_get_retry_reason(bio);
1933 if (reason == BIO_RR_CONNECT)
1934 return(SSL_ERROR_WANT_CONNECT);
1935 else if (reason == BIO_RR_ACCEPT)
1936 return(SSL_ERROR_WANT_ACCEPT);
1938 return(SSL_ERROR_SYSCALL);
1941 if ((i < 0) && SSL_want_x509_lookup(s))
1943 return(SSL_ERROR_WANT_X509_LOOKUP);
1948 if (s->version == SSL2_VERSION)
1950 /* assume it is the socket being closed */
1951 return(SSL_ERROR_ZERO_RETURN);
1955 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1956 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1957 return(SSL_ERROR_ZERO_RETURN);
1960 return(SSL_ERROR_SYSCALL);
1963 int SSL_do_handshake(SSL *s)
1967 if (s->handshake_func == NULL)
1969 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1973 s->method->ssl_renegotiate_check(s);
1975 if (SSL_in_init(s) || SSL_in_before(s))
1977 ret=s->handshake_func(s);
1982 /* For the next 2 functions, SSL_clear() sets shutdown and so
1983 * one of these calls will reset it */
1984 void SSL_set_accept_state(SSL *s)
1988 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1989 s->handshake_func=s->method->ssl_accept;
1990 /* clear the current cipher */
1991 ssl_clear_cipher_ctx(s);
1994 void SSL_set_connect_state(SSL *s)
1998 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1999 s->handshake_func=s->method->ssl_connect;
2000 /* clear the current cipher */
2001 ssl_clear_cipher_ctx(s);
2004 int ssl_undefined_function(SSL *s)
2006 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2010 SSL_METHOD *ssl_bad_method(int ver)
2012 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2016 const char *SSL_get_version(SSL *s)
2018 if (s->version == TLS1_VERSION)
2020 else if (s->version == SSL3_VERSION)
2022 else if (s->version == SSL2_VERSION)
2028 SSL *SSL_dup(SSL *s)
2030 STACK_OF(X509_NAME) *sk;
2035 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2038 ret->version = s->version;
2039 ret->type = s->type;
2040 ret->method = s->method;
2042 if (s->session != NULL)
2044 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2045 SSL_copy_session_id(ret,s);
2049 /* No session has been established yet, so we have to expect
2050 * that s->cert or ret->cert will be changed later --
2051 * they should not both point to the same object,
2052 * and thus we can't use SSL_copy_session_id. */
2054 ret->method->ssl_free(ret);
2055 ret->method = s->method;
2056 ret->method->ssl_new(ret);
2058 if (s->cert != NULL)
2060 if (ret->cert != NULL)
2062 ssl_cert_free(ret->cert);
2064 ret->cert = ssl_cert_dup(s->cert);
2065 if (ret->cert == NULL)
2069 SSL_set_session_id_context(ret,
2070 s->sid_ctx, s->sid_ctx_length);
2073 ret->options=s->options;
2075 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2076 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2077 ret->msg_callback = s->msg_callback;
2078 ret->msg_callback_arg = s->msg_callback_arg;
2079 SSL_set_verify(ret,SSL_get_verify_mode(s),
2080 SSL_get_verify_callback(s));
2081 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2082 ret->generate_session_id = s->generate_session_id;
2084 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2086 ret->debug=s->debug;
2088 /* copy app data, a little dangerous perhaps */
2089 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2092 /* setup rbio, and wbio */
2093 if (s->rbio != NULL)
2095 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2098 if (s->wbio != NULL)
2100 if (s->wbio != s->rbio)
2102 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2106 ret->wbio=ret->rbio;
2108 ret->rwstate = s->rwstate;
2109 ret->in_handshake = s->in_handshake;
2110 ret->handshake_func = s->handshake_func;
2111 ret->server = s->server;
2112 ret->new_session = s->new_session;
2113 ret->quiet_shutdown = s->quiet_shutdown;
2114 ret->shutdown=s->shutdown;
2115 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2116 ret->rstate=s->rstate;
2117 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2119 ret->purpose=s->purpose;
2120 ret->trust=s->trust;
2122 /* dup the cipher_list and cipher_list_by_id stacks */
2123 if (s->cipher_list != NULL)
2125 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2128 if (s->cipher_list_by_id != NULL)
2129 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2133 /* Dup the client_CA list */
2134 if (s->client_CA != NULL)
2136 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2138 for (i=0; i<sk_X509_NAME_num(sk); i++)
2140 xn=sk_X509_NAME_value(sk,i);
2141 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2152 if (ret != NULL) SSL_free(ret);
2158 void ssl_clear_cipher_ctx(SSL *s)
2160 if (s->enc_read_ctx != NULL)
2162 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2163 OPENSSL_free(s->enc_read_ctx);
2164 s->enc_read_ctx=NULL;
2166 if (s->enc_write_ctx != NULL)
2168 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2169 OPENSSL_free(s->enc_write_ctx);
2170 s->enc_write_ctx=NULL;
2172 if (s->expand != NULL)
2174 COMP_CTX_free(s->expand);
2177 if (s->compress != NULL)
2179 COMP_CTX_free(s->compress);
2184 /* Fix this function so that it takes an optional type parameter */
2185 X509 *SSL_get_certificate(SSL *s)
2187 if (s->cert != NULL)
2188 return(s->cert->key->x509);
2193 /* Fix this function so that it takes an optional type parameter */
2194 EVP_PKEY *SSL_get_privatekey(SSL *s)
2196 if (s->cert != NULL)
2197 return(s->cert->key->privatekey);
2202 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
2204 if ((s->session != NULL) && (s->session->cipher != NULL))
2205 return(s->session->cipher);
2209 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2211 if (s->compress != NULL)
2212 return(s->compress->meth);
2216 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2218 if (s->expand != NULL)
2219 return(s->expand->meth);
2223 int ssl_init_wbio_buffer(SSL *s,int push)
2227 if (s->bbio == NULL)
2229 bbio=BIO_new(BIO_f_buffer());
2230 if (bbio == NULL) return(0);
2236 if (s->bbio == s->wbio)
2237 s->wbio=BIO_pop(s->wbio);
2239 (void)BIO_reset(bbio);
2240 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2241 if (!BIO_set_read_buffer_size(bbio,1))
2243 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2248 if (s->wbio != bbio)
2249 s->wbio=BIO_push(bbio,s->wbio);
2253 if (s->wbio == bbio)
2254 s->wbio=BIO_pop(bbio);
2259 void ssl_free_wbio_buffer(SSL *s)
2261 if (s->bbio == NULL) return;
2263 if (s->bbio == s->wbio)
2265 /* remove buffering */
2266 s->wbio=BIO_pop(s->wbio);
2267 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2268 assert(s->wbio != NULL);
2275 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2277 ctx->quiet_shutdown=mode;
2280 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
2282 return(ctx->quiet_shutdown);
2285 void SSL_set_quiet_shutdown(SSL *s,int mode)
2287 s->quiet_shutdown=mode;
2290 int SSL_get_quiet_shutdown(SSL *s)
2292 return(s->quiet_shutdown);
2295 void SSL_set_shutdown(SSL *s,int mode)
2300 int SSL_get_shutdown(SSL *s)
2302 return(s->shutdown);
2305 int SSL_version(SSL *s)
2310 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
2315 #ifndef OPENSSL_NO_STDIO
2316 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2318 return(X509_STORE_set_default_paths(ctx->cert_store));
2321 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2324 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
2328 void SSL_set_info_callback(SSL *ssl,
2329 void (*cb)(const SSL *ssl,int type,int val))
2331 ssl->info_callback=cb;
2334 void (*SSL_get_info_callback(SSL *ssl))(const SSL *ssl,int type,int val)
2336 return ssl->info_callback;
2339 int SSL_state(SSL *ssl)
2344 void SSL_set_verify_result(SSL *ssl,long arg)
2346 ssl->verify_result=arg;
2349 long SSL_get_verify_result(SSL *ssl)
2351 return(ssl->verify_result);
2354 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2355 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2357 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2358 new_func, dup_func, free_func);
2361 int SSL_set_ex_data(SSL *s,int idx,void *arg)
2363 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2366 void *SSL_get_ex_data(SSL *s,int idx)
2368 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2371 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2372 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2374 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2375 new_func, dup_func, free_func);
2378 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2380 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2383 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
2385 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2393 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
2395 return(ctx->cert_store);
2398 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2400 if (ctx->cert_store != NULL)
2401 X509_STORE_free(ctx->cert_store);
2402 ctx->cert_store=store;
2405 int SSL_want(SSL *s)
2411 * \brief Set the callback for generating temporary RSA keys.
2412 * \param ctx the SSL context.
2413 * \param cb the callback
2416 #ifndef OPENSSL_NO_RSA
2417 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2421 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2424 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2428 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2434 * \brief The RSA temporary key callback function.
2435 * \param ssl the SSL session.
2436 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2437 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2438 * of the required key in bits.
2439 * \return the temporary RSA key.
2440 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2443 RSA *cb(SSL *ssl,int is_export,int keylength)
2448 * \brief Set the callback for generating temporary DH keys.
2449 * \param ctx the SSL context.
2450 * \param dh the callback
2453 #ifndef OPENSSL_NO_DH
2454 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2457 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2460 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2463 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2467 #ifndef OPENSSL_NO_ECDH
2468 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2471 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)())ecdh);
2474 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2477 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)())ecdh);
2482 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))
2484 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb);
2486 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))
2488 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb);
2493 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2494 #include "../crypto/bio/bss_file.c"
2497 IMPLEMENT_STACK_OF(SSL_CIPHER)
2498 IMPLEMENT_STACK_OF(SSL_COMP)