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/rand.h>
129 #include <openssl/ocsp.h>
130 #ifndef OPENSSL_NO_DH
131 #include <openssl/dh.h>
133 #ifndef OPENSSL_NO_ENGINE
134 #include <openssl/engine.h>
137 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
139 SSL3_ENC_METHOD ssl3_undef_enc_method={
140 /* evil casts, but these functions are only called if there's a library bug */
141 (int (*)(SSL *,int))ssl_undefined_function,
142 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
143 ssl_undefined_function,
144 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
145 (int (*)(SSL*, int))ssl_undefined_function,
146 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function,
147 0, /* finish_mac_length */
148 (int (*)(SSL *, EVP_MD_CTX *, unsigned char *))ssl_undefined_function,
149 NULL, /* client_finished_label */
150 0, /* client_finished_label_len */
151 NULL, /* server_finished_label */
152 0, /* server_finished_label_len */
153 (int (*)(int))ssl_undefined_function
156 int SSL_clear(SSL *s)
159 if (s->method == NULL)
161 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
165 if (ssl_clear_bad_session(s))
167 SSL_SESSION_free(s->session);
175 #if 0 /* Disabled since version 1.10 of this file (early return not
176 * needed because SSL_clear is not called when doing renegotiation) */
177 /* This is set if we are doing dynamic renegotiation so keep
178 * the old cipher. It is sort of a SSL_clear_lite :-) */
179 if (s->new_session) return(1);
183 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
190 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
192 s->version=s->method->version;
193 s->client_version=s->version;
194 s->rwstate=SSL_NOTHING;
195 s->rstate=SSL_ST_READ_HEADER;
197 s->read_ahead=s->ctx->read_ahead;
200 if (s->init_buf != NULL)
202 BUF_MEM_free(s->init_buf);
206 ssl_clear_cipher_ctx(s);
211 /* Check to see if we were changed into a different method, if
212 * so, revert back if we are not doing session-id reuse. */
213 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
215 s->method->ssl_free(s);
216 s->method=s->ctx->method;
217 if (!s->method->ssl_new(s))
222 s->method->ssl_clear(s);
226 /** Used to change an SSL_CTXs default SSL method type */
227 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
229 STACK_OF(SSL_CIPHER) *sk;
233 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
234 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
235 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
237 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
243 SSL *SSL_new(SSL_CTX *ctx)
249 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
252 if (ctx->method == NULL)
254 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
258 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
259 if (s == NULL) goto err;
260 memset(s,0,sizeof(SSL));
262 #ifndef OPENSSL_NO_KRB5
263 s->kssl_ctx = kssl_ctx_new();
264 #endif /* OPENSSL_NO_KRB5 */
266 s->options=ctx->options;
268 s->max_cert_list=ctx->max_cert_list;
270 if (ctx->cert != NULL)
272 /* Earlier library versions used to copy the pointer to
273 * the CERT, not its contents; only when setting new
274 * parameters for the per-SSL copy, ssl_cert_new would be
275 * called (and the direct reference to the per-SSL_CTX
276 * settings would be lost, but those still were indirectly
277 * accessed for various purposes, and for that reason they
278 * used to be known as s->ctx->default_cert).
279 * Now we don't look at the SSL_CTX's CERT after having
280 * duplicated it once. */
282 s->cert = ssl_cert_dup(ctx->cert);
287 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
289 s->read_ahead=ctx->read_ahead;
290 s->msg_callback=ctx->msg_callback;
291 s->msg_callback_arg=ctx->msg_callback_arg;
292 s->verify_mode=ctx->verify_mode;
294 s->verify_depth=ctx->verify_depth;
296 s->sid_ctx_length=ctx->sid_ctx_length;
297 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
298 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
299 s->verify_callback=ctx->default_verify_callback;
300 s->generate_session_id=ctx->generate_session_id;
302 s->param = X509_VERIFY_PARAM_new();
305 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
307 s->purpose = ctx->purpose;
308 s->trust = ctx->trust;
310 s->quiet_shutdown=ctx->quiet_shutdown;
312 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
314 #ifndef OPENSSL_NO_TLSEXT
315 s->tlsext_debug_cb = 0;
316 s->tlsext_debug_arg = NULL;
317 s->tlsext_ticket_expected = 0;
318 s->tlsext_status_type = -1;
319 s->tlsext_status_expected = 0;
320 s->tlsext_ocsp_ids = NULL;
321 s->tlsext_ocsp_exts = NULL;
322 s->tlsext_ocsp_resp = NULL;
323 s->tlsext_ocsp_resplen = -1;
324 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
327 s->verify_result=X509_V_OK;
329 s->method=ctx->method;
331 if (!s->method->ssl_new(s))
335 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
339 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
346 ssl_cert_free(s->cert);
348 SSL_CTX_free(s->ctx); /* decrement reference count */
351 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
355 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
356 unsigned int sid_ctx_len)
358 if(sid_ctx_len > sizeof ctx->sid_ctx)
360 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
363 ctx->sid_ctx_length=sid_ctx_len;
364 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
369 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
370 unsigned int sid_ctx_len)
372 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
374 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
377 ssl->sid_ctx_length=sid_ctx_len;
378 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
383 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
385 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
386 ctx->generate_session_id = cb;
387 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
391 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
393 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
394 ssl->generate_session_id = cb;
395 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
399 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
402 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
403 * we can "construct" a session to give us the desired check - ie. to
404 * find if there's a session in the hash table that would conflict with
405 * any new session built out of this id/id_len and the ssl_version in
406 * use by this SSL. */
409 if(id_len > sizeof r.session_id)
412 r.ssl_version = ssl->version;
413 r.session_id_length = id_len;
414 memcpy(r.session_id, id, id_len);
415 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
416 * callback is calling us to check the uniqueness of a shorter ID, it
417 * must be compared as a padded-out ID because that is what it will be
418 * converted to when the callback has finished choosing it. */
419 if((r.ssl_version == SSL2_VERSION) &&
420 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
422 memset(r.session_id + id_len, 0,
423 SSL2_SSL_SESSION_ID_LENGTH - id_len);
424 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
427 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
428 p = (SSL_SESSION *)lh_retrieve(ssl->ctx->sessions, &r);
429 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
433 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
435 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
438 int SSL_set_purpose(SSL *s, int purpose)
440 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
443 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
445 return X509_VERIFY_PARAM_set_trust(s->param, trust);
448 int SSL_set_trust(SSL *s, int trust)
450 return X509_VERIFY_PARAM_set_trust(s->param, trust);
453 void SSL_free(SSL *s)
460 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
468 fprintf(stderr,"SSL_free, bad reference count\n");
474 X509_VERIFY_PARAM_free(s->param);
476 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
480 /* If the buffering BIO is in place, pop it off */
481 if (s->bbio == s->wbio)
483 s->wbio=BIO_pop(s->wbio);
489 BIO_free_all(s->rbio);
490 if ((s->wbio != NULL) && (s->wbio != s->rbio))
491 BIO_free_all(s->wbio);
493 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
495 /* add extra stuff */
496 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
497 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
499 /* Make the next call work :-) */
500 if (s->session != NULL)
502 ssl_clear_bad_session(s);
503 SSL_SESSION_free(s->session);
506 ssl_clear_cipher_ctx(s);
508 if (s->cert != NULL) ssl_cert_free(s->cert);
509 /* Free up if allocated */
511 #ifndef OPENSSL_NO_TLSEXT
512 if (s->tlsext_hostname)
513 OPENSSL_free(s->tlsext_hostname);
514 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx);
515 if (s->tlsext_ocsp_exts)
516 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
517 X509_EXTENSION_free);
518 if (s->tlsext_ocsp_ids)
519 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
520 if (s->tlsext_ocsp_resp)
521 OPENSSL_free(s->tlsext_ocsp_resp);
523 if (s->client_CA != NULL)
524 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
526 if (s->method != NULL) s->method->ssl_free(s);
528 if (s->ctx) SSL_CTX_free(s->ctx);
530 #ifndef OPENSSL_NO_KRB5
531 if (s->kssl_ctx != NULL)
532 kssl_ctx_free(s->kssl_ctx);
533 #endif /* OPENSSL_NO_KRB5 */
538 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
540 /* If the output buffering BIO is still in place, remove it
544 if (s->wbio == s->bbio)
546 s->wbio=s->wbio->next_bio;
547 s->bbio->next_bio=NULL;
550 if ((s->rbio != NULL) && (s->rbio != rbio))
551 BIO_free_all(s->rbio);
552 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
553 BIO_free_all(s->wbio);
558 BIO *SSL_get_rbio(const SSL *s)
561 BIO *SSL_get_wbio(const SSL *s)
564 int SSL_get_fd(const SSL *s)
566 return(SSL_get_rfd(s));
569 int SSL_get_rfd(const SSL *s)
575 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
581 int SSL_get_wfd(const SSL *s)
587 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
593 #ifndef OPENSSL_NO_SOCK
594 int SSL_set_fd(SSL *s,int fd)
599 bio=BIO_new(BIO_s_socket());
603 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
606 BIO_set_fd(bio,fd,BIO_NOCLOSE);
607 SSL_set_bio(s,bio,bio);
613 int SSL_set_wfd(SSL *s,int fd)
618 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
619 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
621 bio=BIO_new(BIO_s_socket());
624 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
625 BIO_set_fd(bio,fd,BIO_NOCLOSE);
626 SSL_set_bio(s,SSL_get_rbio(s),bio);
629 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
635 int SSL_set_rfd(SSL *s,int fd)
640 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
641 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
643 bio=BIO_new(BIO_s_socket());
647 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
650 BIO_set_fd(bio,fd,BIO_NOCLOSE);
651 SSL_set_bio(s,bio,SSL_get_wbio(s));
654 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
662 /* return length of latest Finished message we sent, copy to 'buf' */
663 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
669 ret = s->s3->tmp.finish_md_len;
672 memcpy(buf, s->s3->tmp.finish_md, count);
677 /* return length of latest Finished message we expected, copy to 'buf' */
678 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
684 ret = s->s3->tmp.peer_finish_md_len;
687 memcpy(buf, s->s3->tmp.peer_finish_md, count);
693 int SSL_get_verify_mode(const SSL *s)
695 return(s->verify_mode);
698 int SSL_get_verify_depth(const SSL *s)
700 return X509_VERIFY_PARAM_get_depth(s->param);
703 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
705 return(s->verify_callback);
708 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
710 return(ctx->verify_mode);
713 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
715 return X509_VERIFY_PARAM_get_depth(ctx->param);
718 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
720 return(ctx->default_verify_callback);
723 void SSL_set_verify(SSL *s,int mode,
724 int (*callback)(int ok,X509_STORE_CTX *ctx))
727 if (callback != NULL)
728 s->verify_callback=callback;
731 void SSL_set_verify_depth(SSL *s,int depth)
733 X509_VERIFY_PARAM_set_depth(s->param, depth);
736 void SSL_set_read_ahead(SSL *s,int yes)
741 int SSL_get_read_ahead(const SSL *s)
743 return(s->read_ahead);
746 int SSL_pending(const SSL *s)
748 /* SSL_pending cannot work properly if read-ahead is enabled
749 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
750 * and it is impossible to fix since SSL_pending cannot report
751 * errors that may be observed while scanning the new data.
752 * (Note that SSL_pending() is often used as a boolean value,
753 * so we'd better not return -1.)
755 return(s->method->ssl_pending(s));
758 X509 *SSL_get_peer_certificate(const SSL *s)
762 if ((s == NULL) || (s->session == NULL))
767 if (r == NULL) return(r);
769 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
774 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
778 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
781 r=s->session->sess_cert->cert_chain;
783 /* If we are a client, cert_chain includes the peer's own
784 * certificate; if we are a server, it does not. */
789 /* Now in theory, since the calling process own 't' it should be safe to
790 * modify. We need to be able to read f without being hassled */
791 void SSL_copy_session_id(SSL *t,const SSL *f)
795 /* Do we need to to SSL locking? */
796 SSL_set_session(t,SSL_get_session(f));
798 /* what if we are setup as SSLv2 but want to talk SSLv3 or
800 if (t->method != f->method)
802 t->method->ssl_free(t); /* cleanup current */
803 t->method=f->method; /* change method */
804 t->method->ssl_new(t); /* setup new */
810 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
815 if (tmp != NULL) ssl_cert_free(tmp);
816 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
819 /* Fix this so it checks all the valid key/cert options */
820 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
822 if ( (ctx == NULL) ||
823 (ctx->cert == NULL) ||
824 (ctx->cert->key->x509 == NULL))
826 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
829 if (ctx->cert->key->privatekey == NULL)
831 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
834 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
837 /* Fix this function so that it takes an optional type parameter */
838 int SSL_check_private_key(const SSL *ssl)
842 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
845 if (ssl->cert == NULL)
847 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
850 if (ssl->cert->key->x509 == NULL)
852 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
855 if (ssl->cert->key->privatekey == NULL)
857 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
860 return(X509_check_private_key(ssl->cert->key->x509,
861 ssl->cert->key->privatekey));
864 int SSL_accept(SSL *s)
866 if (s->handshake_func == 0)
867 /* Not properly initialized yet */
868 SSL_set_accept_state(s);
870 return(s->method->ssl_accept(s));
873 int SSL_connect(SSL *s)
875 if (s->handshake_func == 0)
876 /* Not properly initialized yet */
877 SSL_set_connect_state(s);
879 return(s->method->ssl_connect(s));
882 long SSL_get_default_timeout(const SSL *s)
884 return(s->method->get_timeout());
887 int SSL_read(SSL *s,void *buf,int num)
889 if (s->handshake_func == 0)
891 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
895 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
897 s->rwstate=SSL_NOTHING;
900 return(s->method->ssl_read(s,buf,num));
903 int SSL_peek(SSL *s,void *buf,int num)
905 if (s->handshake_func == 0)
907 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
911 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
915 return(s->method->ssl_peek(s,buf,num));
918 int SSL_write(SSL *s,const void *buf,int num)
920 if (s->handshake_func == 0)
922 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
926 if (s->shutdown & SSL_SENT_SHUTDOWN)
928 s->rwstate=SSL_NOTHING;
929 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
932 return(s->method->ssl_write(s,buf,num));
935 int SSL_shutdown(SSL *s)
937 /* Note that this function behaves differently from what one might
938 * expect. Return values are 0 for no success (yet),
939 * 1 for success; but calling it once is usually not enough,
940 * even if blocking I/O is used (see ssl3_shutdown).
943 if (s->handshake_func == 0)
945 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
949 if ((s != NULL) && !SSL_in_init(s))
950 return(s->method->ssl_shutdown(s));
955 int SSL_renegotiate(SSL *s)
957 if (s->new_session == 0)
961 return(s->method->ssl_renegotiate(s));
964 int SSL_renegotiate_pending(SSL *s)
966 /* becomes true when negotiation is requested;
967 * false again once a handshake has finished */
968 return (s->new_session != 0);
971 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
977 case SSL_CTRL_GET_READ_AHEAD:
978 return(s->read_ahead);
979 case SSL_CTRL_SET_READ_AHEAD:
984 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
985 s->msg_callback_arg = parg;
988 case SSL_CTRL_OPTIONS:
989 return(s->options|=larg);
991 return(s->mode|=larg);
992 case SSL_CTRL_GET_MAX_CERT_LIST:
993 return(s->max_cert_list);
994 case SSL_CTRL_SET_MAX_CERT_LIST:
996 s->max_cert_list=larg;
998 case SSL_CTRL_SET_MTU:
999 if (SSL_version(s) == DTLS1_VERSION ||
1000 SSL_version(s) == DTLS1_BAD_VER)
1007 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1011 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1015 case SSL_CTRL_SET_MSG_CALLBACK:
1016 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1020 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1024 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
1026 return ctx->sessions;
1029 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1035 case SSL_CTRL_GET_READ_AHEAD:
1036 return(ctx->read_ahead);
1037 case SSL_CTRL_SET_READ_AHEAD:
1039 ctx->read_ahead=larg;
1042 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1043 ctx->msg_callback_arg = parg;
1046 case SSL_CTRL_GET_MAX_CERT_LIST:
1047 return(ctx->max_cert_list);
1048 case SSL_CTRL_SET_MAX_CERT_LIST:
1049 l=ctx->max_cert_list;
1050 ctx->max_cert_list=larg;
1053 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1054 l=ctx->session_cache_size;
1055 ctx->session_cache_size=larg;
1057 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1058 return(ctx->session_cache_size);
1059 case SSL_CTRL_SET_SESS_CACHE_MODE:
1060 l=ctx->session_cache_mode;
1061 ctx->session_cache_mode=larg;
1063 case SSL_CTRL_GET_SESS_CACHE_MODE:
1064 return(ctx->session_cache_mode);
1066 case SSL_CTRL_SESS_NUMBER:
1067 return(ctx->sessions->num_items);
1068 case SSL_CTRL_SESS_CONNECT:
1069 return(ctx->stats.sess_connect);
1070 case SSL_CTRL_SESS_CONNECT_GOOD:
1071 return(ctx->stats.sess_connect_good);
1072 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1073 return(ctx->stats.sess_connect_renegotiate);
1074 case SSL_CTRL_SESS_ACCEPT:
1075 return(ctx->stats.sess_accept);
1076 case SSL_CTRL_SESS_ACCEPT_GOOD:
1077 return(ctx->stats.sess_accept_good);
1078 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1079 return(ctx->stats.sess_accept_renegotiate);
1080 case SSL_CTRL_SESS_HIT:
1081 return(ctx->stats.sess_hit);
1082 case SSL_CTRL_SESS_CB_HIT:
1083 return(ctx->stats.sess_cb_hit);
1084 case SSL_CTRL_SESS_MISSES:
1085 return(ctx->stats.sess_miss);
1086 case SSL_CTRL_SESS_TIMEOUTS:
1087 return(ctx->stats.sess_timeout);
1088 case SSL_CTRL_SESS_CACHE_FULL:
1089 return(ctx->stats.sess_cache_full);
1090 case SSL_CTRL_OPTIONS:
1091 return(ctx->options|=larg);
1093 return(ctx->mode|=larg);
1095 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1099 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1103 case SSL_CTRL_SET_MSG_CALLBACK:
1104 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1108 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1112 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1120 return((l > 0)?1:-1);
1123 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1124 const SSL_CIPHER * const *bp)
1128 l=(*ap)->id-(*bp)->id;
1132 return((l > 0)?1:-1);
1135 /** return a STACK of the ciphers available for the SSL and in order of
1137 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1141 if (s->cipher_list != NULL)
1143 return(s->cipher_list);
1145 else if ((s->ctx != NULL) &&
1146 (s->ctx->cipher_list != NULL))
1148 return(s->ctx->cipher_list);
1154 /** return a STACK of the ciphers available for the SSL and in order of
1156 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1160 if (s->cipher_list_by_id != NULL)
1162 return(s->cipher_list_by_id);
1164 else if ((s->ctx != NULL) &&
1165 (s->ctx->cipher_list_by_id != NULL))
1167 return(s->ctx->cipher_list_by_id);
1173 /** The old interface to get the same thing as SSL_get_ciphers() */
1174 const char *SSL_get_cipher_list(const SSL *s,int n)
1177 STACK_OF(SSL_CIPHER) *sk;
1179 if (s == NULL) return(NULL);
1180 sk=SSL_get_ciphers(s);
1181 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1183 c=sk_SSL_CIPHER_value(sk,n);
1184 if (c == NULL) return(NULL);
1188 /** specify the ciphers to be used by default by the SSL_CTX */
1189 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1191 STACK_OF(SSL_CIPHER) *sk;
1193 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1194 &ctx->cipher_list_by_id,str);
1195 /* ssl_create_cipher_list may return an empty stack if it
1196 * was unable to find a cipher matching the given rule string
1197 * (for example if the rule string specifies a cipher which
1198 * has been disabled). This is not an error as far as
1199 * ssl_create_cipher_list is concerned, and hence
1200 * ctx->cipher_list and ctx->cipher_list_by_id has been
1204 else if (sk_SSL_CIPHER_num(sk) == 0)
1206 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1212 /** specify the ciphers to be used by the SSL */
1213 int SSL_set_cipher_list(SSL *s,const char *str)
1215 STACK_OF(SSL_CIPHER) *sk;
1217 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1218 &s->cipher_list_by_id,str);
1219 /* see comment in SSL_CTX_set_cipher_list */
1222 else if (sk_SSL_CIPHER_num(sk) == 0)
1224 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1230 /* works well for SSLv2, not so good for SSLv3 */
1231 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1234 STACK_OF(SSL_CIPHER) *sk;
1238 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1243 sk=s->session->ciphers;
1244 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1248 c=sk_SSL_CIPHER_value(sk,i);
1266 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1267 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1272 #ifndef OPENSSL_NO_KRB5
1273 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1274 #endif /* OPENSSL_NO_KRB5 */
1276 if (sk == NULL) return(0);
1279 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1281 c=sk_SSL_CIPHER_value(sk,i);
1282 #ifndef OPENSSL_NO_KRB5
1283 if ((c->algorithms & SSL_KRB5) && nokrb5)
1285 #endif /* OPENSSL_NO_KRB5 */
1287 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1293 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1294 STACK_OF(SSL_CIPHER) **skp)
1297 STACK_OF(SSL_CIPHER) *sk;
1300 n=ssl_put_cipher_by_char(s,NULL,NULL);
1303 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1306 if ((skp == NULL) || (*skp == NULL))
1307 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1311 sk_SSL_CIPHER_zero(sk);
1314 for (i=0; i<num; i+=n)
1316 c=ssl_get_cipher_by_char(s,p);
1320 if (!sk_SSL_CIPHER_push(sk,c))
1322 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1332 if ((skp == NULL) || (*skp == NULL))
1333 sk_SSL_CIPHER_free(sk);
1337 #ifndef OPENSSL_NO_TLSEXT
1338 /** return a servername extension value if provided in Client Hello, or NULL.
1339 * So far, only host_name types are defined (RFC 3546).
1342 const char *SSL_get_servername(const SSL *s, const int type)
1344 if (type != TLSEXT_NAMETYPE_host_name)
1347 return s->session && !s->tlsext_hostname ?
1348 s->session->tlsext_hostname :
1352 int SSL_get_servername_type(const SSL *s)
1354 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1355 return TLSEXT_NAMETYPE_host_name;
1360 unsigned long SSL_SESSION_hash(const SSL_SESSION *a)
1365 ((unsigned int) a->session_id[0] )|
1366 ((unsigned int) a->session_id[1]<< 8L)|
1367 ((unsigned long)a->session_id[2]<<16L)|
1368 ((unsigned long)a->session_id[3]<<24L);
1372 /* NB: If this function (or indeed the hash function which uses a sort of
1373 * coarser function than this one) is changed, ensure
1374 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1375 * able to construct an SSL_SESSION that will collide with any existing session
1376 * with a matching session ID. */
1377 int SSL_SESSION_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1379 if (a->ssl_version != b->ssl_version)
1381 if (a->session_id_length != b->session_id_length)
1383 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1386 /* These wrapper functions should remain rather than redeclaring
1387 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1388 * variable. The reason is that the functions aren't static, they're exposed via
1390 static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *)
1391 static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *)
1393 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1399 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1404 if (FIPS_mode() && (meth->version < TLS1_VERSION))
1406 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1411 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1413 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1416 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1420 memset(ret,0,sizeof(SSL_CTX));
1424 ret->cert_store=NULL;
1425 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1426 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1427 ret->session_cache_head=NULL;
1428 ret->session_cache_tail=NULL;
1430 /* We take the system default */
1431 ret->session_timeout=meth->get_timeout();
1433 ret->new_session_cb=0;
1434 ret->remove_session_cb=0;
1435 ret->get_session_cb=0;
1436 ret->generate_session_id=0;
1438 memset((char *)&ret->stats,0,sizeof(ret->stats));
1441 ret->quiet_shutdown=0;
1443 /* ret->cipher=NULL;*/
1444 /* ret->s2->challenge=NULL;
1445 ret->master_key=NULL;
1447 ret->s2->conn_id=NULL; */
1449 ret->info_callback=NULL;
1451 ret->app_verify_callback=0;
1452 ret->app_verify_arg=NULL;
1454 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1456 ret->msg_callback=0;
1457 ret->msg_callback_arg=NULL;
1458 ret->verify_mode=SSL_VERIFY_NONE;
1460 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1462 ret->sid_ctx_length=0;
1463 ret->default_verify_callback=NULL;
1464 if ((ret->cert=ssl_cert_new()) == NULL)
1467 ret->default_passwd_callback=0;
1468 ret->default_passwd_callback_userdata=NULL;
1469 ret->client_cert_cb=0;
1470 ret->app_gen_cookie_cb=0;
1471 ret->app_verify_cookie_cb=0;
1473 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash),
1474 LHASH_COMP_FN(SSL_SESSION_cmp));
1475 if (ret->sessions == NULL) goto err;
1476 ret->cert_store=X509_STORE_new();
1477 if (ret->cert_store == NULL) goto err;
1479 ssl_create_cipher_list(ret->method,
1480 &ret->cipher_list,&ret->cipher_list_by_id,
1481 SSL_DEFAULT_CIPHER_LIST);
1482 if (ret->cipher_list == NULL
1483 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1485 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1489 ret->param = X509_VERIFY_PARAM_new();
1493 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1495 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1498 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1500 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1503 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1505 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1509 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1512 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1514 ret->extra_certs=NULL;
1515 ret->comp_methods=SSL_COMP_get_compression_methods();
1517 #ifndef OPENSSL_NO_TLSEXT
1518 ret->tlsext_servername_callback = 0;
1519 ret->tlsext_servername_arg = NULL;
1520 /* Setup RFC4507 ticket keys */
1521 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1522 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1523 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1524 ret->options |= SSL_OP_NO_TICKET;
1526 ret->tlsext_status_cb = 0;
1527 ret->tlsext_status_arg = NULL;
1531 #ifndef OPENSSL_NO_ENGINE
1532 ret->client_cert_engine = NULL;
1533 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1534 #define eng_strx(x) #x
1535 #define eng_str(x) eng_strx(x)
1536 /* Use specific client engine automatically... ignore errors */
1539 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1543 ENGINE_load_builtin_engines();
1544 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1546 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1554 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1556 if (ret != NULL) SSL_CTX_free(ret);
1561 static void SSL_COMP_free(SSL_COMP *comp)
1562 { OPENSSL_free(comp); }
1565 void SSL_CTX_free(SSL_CTX *a)
1569 if (a == NULL) return;
1571 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1573 REF_PRINT("SSL_CTX",a);
1579 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1585 X509_VERIFY_PARAM_free(a->param);
1588 * Free internal session cache. However: the remove_cb() may reference
1589 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1590 * after the sessions were flushed.
1591 * As the ex_data handling routines might also touch the session cache,
1592 * the most secure solution seems to be: empty (flush) the cache, then
1593 * free ex_data, then finally free the cache.
1594 * (See ticket [openssl.org #212].)
1596 if (a->sessions != NULL)
1597 SSL_CTX_flush_sessions(a,0);
1599 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1601 if (a->sessions != NULL)
1602 lh_free(a->sessions);
1604 if (a->cert_store != NULL)
1605 X509_STORE_free(a->cert_store);
1606 if (a->cipher_list != NULL)
1607 sk_SSL_CIPHER_free(a->cipher_list);
1608 if (a->cipher_list_by_id != NULL)
1609 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1610 if (a->cert != NULL)
1611 ssl_cert_free(a->cert);
1612 if (a->client_CA != NULL)
1613 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1614 if (a->extra_certs != NULL)
1615 sk_X509_pop_free(a->extra_certs,X509_free);
1616 #if 0 /* This should never be done, since it removes a global database */
1617 if (a->comp_methods != NULL)
1618 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1620 a->comp_methods = NULL;
1622 #ifndef OPENSSL_NO_ENGINE
1623 if (a->client_cert_engine)
1624 ENGINE_finish(a->client_cert_engine);
1629 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1631 ctx->default_passwd_callback=cb;
1634 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1636 ctx->default_passwd_callback_userdata=u;
1639 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1641 ctx->app_verify_callback=cb;
1642 ctx->app_verify_arg=arg;
1645 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1647 ctx->verify_mode=mode;
1648 ctx->default_verify_callback=cb;
1651 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1653 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
1656 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1659 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1660 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1661 int rsa_tmp_export,dh_tmp_export,kl;
1662 unsigned long mask,emask;
1663 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size;
1664 #ifndef OPENSSL_NO_ECDH
1668 EVP_PKEY *ecc_pkey = NULL;
1669 int signature_nid = 0;
1671 if (c == NULL) return;
1673 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1675 #ifndef OPENSSL_NO_RSA
1676 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1677 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1678 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1680 rsa_tmp=rsa_tmp_export=0;
1682 #ifndef OPENSSL_NO_DH
1683 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1684 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1685 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1687 dh_tmp=dh_tmp_export=0;
1690 #ifndef OPENSSL_NO_ECDH
1691 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL);
1693 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1694 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1695 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1696 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1697 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1698 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1699 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1700 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1701 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1702 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1703 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1704 /* FIX THIS EAY EAY EAY */
1705 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1706 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1707 cpk= &(c->pkeys[SSL_PKEY_ECC]);
1708 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL);
1713 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1714 rsa_tmp,rsa_tmp_export,dh_tmp,
1715 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1718 if (rsa_enc || (rsa_tmp && rsa_sign))
1720 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1724 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1725 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1726 (rsa_enc || rsa_sign || dsa_sign))
1728 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1729 (rsa_enc || rsa_sign || dsa_sign))
1739 if (dh_rsa) mask|=SSL_kDHr;
1740 if (dh_rsa_export) emask|=SSL_kDHr;
1742 if (dh_dsa) mask|=SSL_kDHd;
1743 if (dh_dsa_export) emask|=SSL_kDHd;
1745 if (rsa_enc || rsa_sign)
1760 #ifndef OPENSSL_NO_KRB5
1761 mask|=SSL_kKRB5|SSL_aKRB5;
1762 emask|=SSL_kKRB5|SSL_aKRB5;
1765 /* An ECC certificate may be usable for ECDH and/or
1766 * ECDSA cipher suites depending on the key usage extension.
1770 /* This call populates extension flags (ex_flags) */
1771 x = (c->pkeys[SSL_PKEY_ECC]).x509;
1772 X509_check_purpose(x, -1, 0);
1773 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1774 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
1775 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1776 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
1777 ecc_pkey = X509_get_pubkey(x);
1778 ecc_pkey_size = (ecc_pkey != NULL) ?
1779 EVP_PKEY_bits(ecc_pkey) : 0;
1780 EVP_PKEY_free(ecc_pkey);
1781 if ((x->sig_alg) && (x->sig_alg->algorithm))
1782 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1783 #ifndef OPENSSL_NO_ECDH
1786 if ((signature_nid == NID_md5WithRSAEncryption) ||
1787 (signature_nid == NID_md4WithRSAEncryption) ||
1788 (signature_nid == NID_md2WithRSAEncryption))
1790 mask|=SSL_kECDH|SSL_aRSA;
1791 if (ecc_pkey_size <= 163)
1792 emask|=SSL_kECDH|SSL_aRSA;
1794 if (signature_nid == NID_ecdsa_with_SHA1)
1796 mask|=SSL_kECDH|SSL_aECDSA;
1797 if (ecc_pkey_size <= 163)
1798 emask|=SSL_kECDH|SSL_aECDSA;
1802 #ifndef OPENSSL_NO_ECDSA
1811 #ifndef OPENSSL_NO_ECDH
1819 c->export_mask=emask;
1823 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
1824 #define ku_reject(x, usage) \
1825 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
1827 int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs)
1829 unsigned long alg = cs->algorithms;
1830 EVP_PKEY *pkey = NULL;
1832 int signature_nid = 0;
1834 if (SSL_C_IS_EXPORT(cs))
1836 /* ECDH key length in export ciphers must be <= 163 bits */
1837 pkey = X509_get_pubkey(x);
1838 if (pkey == NULL) return 0;
1839 keysize = EVP_PKEY_bits(pkey);
1840 EVP_PKEY_free(pkey);
1841 if (keysize > 163) return 0;
1844 /* This call populates the ex_flags field correctly */
1845 X509_check_purpose(x, -1, 0);
1846 if ((x->sig_alg) && (x->sig_alg->algorithm))
1847 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1848 if (alg & SSL_kECDH)
1850 /* key usage, if present, must allow key agreement */
1851 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
1855 if (alg & SSL_aECDSA)
1857 /* signature alg must be ECDSA */
1858 if (signature_nid != NID_ecdsa_with_SHA1)
1865 /* signature alg must be RSA */
1866 if ((signature_nid != NID_md5WithRSAEncryption) &&
1867 (signature_nid != NID_md4WithRSAEncryption) &&
1868 (signature_nid != NID_md2WithRSAEncryption))
1874 else if (alg & SSL_aECDSA)
1876 /* key usage, if present, must allow signing */
1877 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
1883 return 1; /* all checks are ok */
1886 /* THIS NEEDS CLEANING UP */
1887 X509 *ssl_get_server_send_cert(SSL *s)
1889 unsigned long alg,mask,kalg;
1894 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1895 alg=s->s3->tmp.new_cipher->algorithms;
1896 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1897 mask=is_export?c->export_mask:c->mask;
1898 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1900 if (kalg & SSL_kECDH)
1902 /* we don't need to look at SSL_kECDHE
1903 * since no certificate is needed for
1904 * anon ECDH and for authenticated
1905 * ECDHE, the check for the auth
1906 * algorithm will set i correctly
1907 * NOTE: For ECDH-RSA, we need an ECC
1908 * not an RSA cert but for ECDHE-RSA
1909 * we need an RSA cert. Placing the
1910 * checks for SSL_kECDH before RSA
1911 * checks ensures the correct cert is chosen.
1915 else if (kalg & SSL_aECDSA)
1919 else if (kalg & SSL_kDHr)
1921 else if (kalg & SSL_kDHd)
1923 else if (kalg & SSL_aDSS)
1924 i=SSL_PKEY_DSA_SIGN;
1925 else if (kalg & SSL_aRSA)
1927 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1928 i=SSL_PKEY_RSA_SIGN;
1932 else if (kalg & SSL_aKRB5)
1934 /* VRS something else here? */
1937 else /* if (kalg & SSL_aNULL) */
1939 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
1942 if (c->pkeys[i].x509 == NULL) return(NULL);
1944 return(c->pkeys[i].x509);
1947 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1952 alg=cipher->algorithms;
1955 if ((alg & SSL_aDSS) &&
1956 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1957 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1958 else if (alg & SSL_aRSA)
1960 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1961 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1962 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1963 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1967 else if ((alg & SSL_aECDSA) &&
1968 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
1969 return(c->pkeys[SSL_PKEY_ECC].privatekey);
1970 else /* if (alg & SSL_aNULL) */
1972 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
1977 void ssl_update_cache(SSL *s,int mode)
1981 /* If the session_id_length is 0, we are not supposed to cache it,
1982 * and it would be rather hard to do anyway :-) */
1983 if (s->session->session_id_length == 0) return;
1985 i=s->ctx->session_cache_mode;
1986 if ((i & mode) && (!s->hit)
1987 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
1988 || SSL_CTX_add_session(s->ctx,s->session))
1989 && (s->ctx->new_session_cb != NULL))
1991 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1992 if (!s->ctx->new_session_cb(s,s->session))
1993 SSL_SESSION_free(s->session);
1996 /* auto flush every 255 connections */
1997 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1998 ((i & mode) == mode))
2000 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2001 ?s->ctx->stats.sess_connect_good
2002 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
2004 SSL_CTX_flush_sessions(s->ctx,(unsigned long)time(NULL));
2009 SSL_METHOD *SSL_get_ssl_method(SSL *s)
2014 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
2019 if (s->method != meth)
2021 if (s->handshake_func != NULL)
2022 conn=(s->handshake_func == s->method->ssl_connect);
2024 if (s->method->version == meth->version)
2028 s->method->ssl_free(s);
2030 ret=s->method->ssl_new(s);
2034 s->handshake_func=meth->ssl_connect;
2036 s->handshake_func=meth->ssl_accept;
2041 int SSL_get_error(const SSL *s,int i)
2047 if (i > 0) return(SSL_ERROR_NONE);
2049 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2050 * etc, where we do encode the error */
2051 if ((l=ERR_peek_error()) != 0)
2053 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2054 return(SSL_ERROR_SYSCALL);
2056 return(SSL_ERROR_SSL);
2059 if ((i < 0) && SSL_want_read(s))
2061 bio=SSL_get_rbio(s);
2062 if (BIO_should_read(bio))
2063 return(SSL_ERROR_WANT_READ);
2064 else if (BIO_should_write(bio))
2065 /* This one doesn't make too much sense ... We never try
2066 * to write to the rbio, and an application program where
2067 * rbio and wbio are separate couldn't even know what it
2069 * However if we ever set s->rwstate incorrectly
2070 * (so that we have SSL_want_read(s) instead of
2071 * SSL_want_write(s)) and rbio and wbio *are* the same,
2072 * this test works around that bug; so it might be safer
2074 return(SSL_ERROR_WANT_WRITE);
2075 else if (BIO_should_io_special(bio))
2077 reason=BIO_get_retry_reason(bio);
2078 if (reason == BIO_RR_CONNECT)
2079 return(SSL_ERROR_WANT_CONNECT);
2080 else if (reason == BIO_RR_ACCEPT)
2081 return(SSL_ERROR_WANT_ACCEPT);
2083 return(SSL_ERROR_SYSCALL); /* unknown */
2087 if ((i < 0) && SSL_want_write(s))
2089 bio=SSL_get_wbio(s);
2090 if (BIO_should_write(bio))
2091 return(SSL_ERROR_WANT_WRITE);
2092 else if (BIO_should_read(bio))
2093 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2094 return(SSL_ERROR_WANT_READ);
2095 else if (BIO_should_io_special(bio))
2097 reason=BIO_get_retry_reason(bio);
2098 if (reason == BIO_RR_CONNECT)
2099 return(SSL_ERROR_WANT_CONNECT);
2100 else if (reason == BIO_RR_ACCEPT)
2101 return(SSL_ERROR_WANT_ACCEPT);
2103 return(SSL_ERROR_SYSCALL);
2106 if ((i < 0) && SSL_want_x509_lookup(s))
2108 return(SSL_ERROR_WANT_X509_LOOKUP);
2113 if (s->version == SSL2_VERSION)
2115 /* assume it is the socket being closed */
2116 return(SSL_ERROR_ZERO_RETURN);
2120 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2121 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2122 return(SSL_ERROR_ZERO_RETURN);
2125 return(SSL_ERROR_SYSCALL);
2128 int SSL_do_handshake(SSL *s)
2132 if (s->handshake_func == NULL)
2134 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2138 s->method->ssl_renegotiate_check(s);
2140 if (SSL_in_init(s) || SSL_in_before(s))
2142 ret=s->handshake_func(s);
2147 /* For the next 2 functions, SSL_clear() sets shutdown and so
2148 * one of these calls will reset it */
2149 void SSL_set_accept_state(SSL *s)
2153 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2154 s->handshake_func=s->method->ssl_accept;
2155 /* clear the current cipher */
2156 ssl_clear_cipher_ctx(s);
2159 void SSL_set_connect_state(SSL *s)
2163 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2164 s->handshake_func=s->method->ssl_connect;
2165 /* clear the current cipher */
2166 ssl_clear_cipher_ctx(s);
2169 int ssl_undefined_function(SSL *s)
2171 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2175 int ssl_undefined_void_function(void)
2177 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2181 int ssl_undefined_const_function(const SSL *s)
2183 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2187 SSL_METHOD *ssl_bad_method(int ver)
2189 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2193 const char *SSL_get_version(const SSL *s)
2195 if (s->version == TLS1_VERSION)
2197 else if (s->version == SSL3_VERSION)
2199 else if (s->version == SSL2_VERSION)
2205 SSL *SSL_dup(SSL *s)
2207 STACK_OF(X509_NAME) *sk;
2212 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2215 ret->version = s->version;
2216 ret->type = s->type;
2217 ret->method = s->method;
2219 if (s->session != NULL)
2221 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2222 SSL_copy_session_id(ret,s);
2226 /* No session has been established yet, so we have to expect
2227 * that s->cert or ret->cert will be changed later --
2228 * they should not both point to the same object,
2229 * and thus we can't use SSL_copy_session_id. */
2231 ret->method->ssl_free(ret);
2232 ret->method = s->method;
2233 ret->method->ssl_new(ret);
2235 if (s->cert != NULL)
2237 if (ret->cert != NULL)
2239 ssl_cert_free(ret->cert);
2241 ret->cert = ssl_cert_dup(s->cert);
2242 if (ret->cert == NULL)
2246 SSL_set_session_id_context(ret,
2247 s->sid_ctx, s->sid_ctx_length);
2250 ret->options=s->options;
2252 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2253 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2254 ret->msg_callback = s->msg_callback;
2255 ret->msg_callback_arg = s->msg_callback_arg;
2256 SSL_set_verify(ret,SSL_get_verify_mode(s),
2257 SSL_get_verify_callback(s));
2258 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2259 ret->generate_session_id = s->generate_session_id;
2261 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2263 ret->debug=s->debug;
2265 /* copy app data, a little dangerous perhaps */
2266 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2269 /* setup rbio, and wbio */
2270 if (s->rbio != NULL)
2272 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2275 if (s->wbio != NULL)
2277 if (s->wbio != s->rbio)
2279 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2283 ret->wbio=ret->rbio;
2285 ret->rwstate = s->rwstate;
2286 ret->in_handshake = s->in_handshake;
2287 ret->handshake_func = s->handshake_func;
2288 ret->server = s->server;
2289 ret->new_session = s->new_session;
2290 ret->quiet_shutdown = s->quiet_shutdown;
2291 ret->shutdown=s->shutdown;
2292 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2293 ret->rstate=s->rstate;
2294 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2297 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2299 /* dup the cipher_list and cipher_list_by_id stacks */
2300 if (s->cipher_list != NULL)
2302 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2305 if (s->cipher_list_by_id != NULL)
2306 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2310 /* Dup the client_CA list */
2311 if (s->client_CA != NULL)
2313 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2315 for (i=0; i<sk_X509_NAME_num(sk); i++)
2317 xn=sk_X509_NAME_value(sk,i);
2318 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2329 if (ret != NULL) SSL_free(ret);
2335 void ssl_clear_cipher_ctx(SSL *s)
2337 if (s->enc_read_ctx != NULL)
2339 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2340 OPENSSL_free(s->enc_read_ctx);
2341 s->enc_read_ctx=NULL;
2343 if (s->enc_write_ctx != NULL)
2345 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2346 OPENSSL_free(s->enc_write_ctx);
2347 s->enc_write_ctx=NULL;
2349 #ifndef OPENSSL_NO_COMP
2350 if (s->expand != NULL)
2352 COMP_CTX_free(s->expand);
2355 if (s->compress != NULL)
2357 COMP_CTX_free(s->compress);
2363 /* Fix this function so that it takes an optional type parameter */
2364 X509 *SSL_get_certificate(const SSL *s)
2366 if (s->cert != NULL)
2367 return(s->cert->key->x509);
2372 /* Fix this function so that it takes an optional type parameter */
2373 EVP_PKEY *SSL_get_privatekey(SSL *s)
2375 if (s->cert != NULL)
2376 return(s->cert->key->privatekey);
2381 SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2383 if ((s->session != NULL) && (s->session->cipher != NULL))
2384 return(s->session->cipher);
2387 #ifdef OPENSSL_NO_COMP
2388 const void *SSL_get_current_compression(SSL *s)
2392 const void *SSL_get_current_expansion(SSL *s)
2398 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2400 if (s->compress != NULL)
2401 return(s->compress->meth);
2405 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2407 if (s->expand != NULL)
2408 return(s->expand->meth);
2413 int ssl_init_wbio_buffer(SSL *s,int push)
2417 if (s->bbio == NULL)
2419 bbio=BIO_new(BIO_f_buffer());
2420 if (bbio == NULL) return(0);
2426 if (s->bbio == s->wbio)
2427 s->wbio=BIO_pop(s->wbio);
2429 (void)BIO_reset(bbio);
2430 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2431 if (!BIO_set_read_buffer_size(bbio,1))
2433 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2438 if (s->wbio != bbio)
2439 s->wbio=BIO_push(bbio,s->wbio);
2443 if (s->wbio == bbio)
2444 s->wbio=BIO_pop(bbio);
2449 void ssl_free_wbio_buffer(SSL *s)
2451 if (s->bbio == NULL) return;
2453 if (s->bbio == s->wbio)
2455 /* remove buffering */
2456 s->wbio=BIO_pop(s->wbio);
2457 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2458 assert(s->wbio != NULL);
2465 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2467 ctx->quiet_shutdown=mode;
2470 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2472 return(ctx->quiet_shutdown);
2475 void SSL_set_quiet_shutdown(SSL *s,int mode)
2477 s->quiet_shutdown=mode;
2480 int SSL_get_quiet_shutdown(const SSL *s)
2482 return(s->quiet_shutdown);
2485 void SSL_set_shutdown(SSL *s,int mode)
2490 int SSL_get_shutdown(const SSL *s)
2492 return(s->shutdown);
2495 int SSL_version(const SSL *s)
2500 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2505 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
2507 if (ssl->ctx == ctx)
2509 #ifndef OPENSSL_NO_TLSEXT
2511 ctx = ssl->initial_ctx;
2513 if (ssl->cert != NULL)
2514 ssl_cert_free(ssl->cert);
2515 ssl->cert = ssl_cert_dup(ctx->cert);
2516 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
2517 if (ssl->ctx != NULL)
2518 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2523 #ifndef OPENSSL_NO_STDIO
2524 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2526 return(X509_STORE_set_default_paths(ctx->cert_store));
2529 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2532 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
2536 void SSL_set_info_callback(SSL *ssl,
2537 void (*cb)(const SSL *ssl,int type,int val))
2539 ssl->info_callback=cb;
2542 /* One compiler (Diab DCC) doesn't like argument names in returned
2543 function pointer. */
2544 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
2546 return ssl->info_callback;
2549 int SSL_state(const SSL *ssl)
2554 void SSL_set_verify_result(SSL *ssl,long arg)
2556 ssl->verify_result=arg;
2559 long SSL_get_verify_result(const SSL *ssl)
2561 return(ssl->verify_result);
2564 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2565 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2567 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2568 new_func, dup_func, free_func);
2571 int SSL_set_ex_data(SSL *s,int idx,void *arg)
2573 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2576 void *SSL_get_ex_data(const SSL *s,int idx)
2578 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2581 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2582 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2584 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2585 new_func, dup_func, free_func);
2588 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2590 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2593 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
2595 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2603 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2605 return(ctx->cert_store);
2608 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2610 if (ctx->cert_store != NULL)
2611 X509_STORE_free(ctx->cert_store);
2612 ctx->cert_store=store;
2615 int SSL_want(const SSL *s)
2621 * \brief Set the callback for generating temporary RSA keys.
2622 * \param ctx the SSL context.
2623 * \param cb the callback
2626 #ifndef OPENSSL_NO_RSA
2627 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2631 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2634 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2638 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2644 * \brief The RSA temporary key callback function.
2645 * \param ssl the SSL session.
2646 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2647 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2648 * of the required key in bits.
2649 * \return the temporary RSA key.
2650 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2653 RSA *cb(SSL *ssl,int is_export,int keylength)
2658 * \brief Set the callback for generating temporary DH keys.
2659 * \param ctx the SSL context.
2660 * \param dh the callback
2663 #ifndef OPENSSL_NO_DH
2664 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2667 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2670 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2673 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2677 #ifndef OPENSSL_NO_ECDH
2678 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2681 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2684 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2687 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2692 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))
2694 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2696 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))
2698 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2703 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2704 #include "../crypto/bio/bss_file.c"
2707 IMPLEMENT_STACK_OF(SSL_CIPHER)
2708 IMPLEMENT_STACK_OF(SSL_COMP)