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);
990 case SSL_CTRL_CLEAR_OPTIONS:
991 return(s->options&=~larg);
993 return(s->mode|=larg);
994 case SSL_CTRL_CLEAR_MODE:
995 return(s->mode &=~larg);
996 case SSL_CTRL_GET_MAX_CERT_LIST:
997 return(s->max_cert_list);
998 case SSL_CTRL_SET_MAX_CERT_LIST:
1000 s->max_cert_list=larg;
1002 case SSL_CTRL_SET_MTU:
1003 #ifndef OPENSSL_NO_DTLS1
1004 if (larg < (long)dtls1_min_mtu())
1008 if (SSL_version(s) == DTLS1_VERSION ||
1009 SSL_version(s) == DTLS1_BAD_VER)
1015 case SSL_CTRL_GET_RI_SUPPORT:
1017 return s->s3->send_connection_binding;
1020 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1024 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1028 case SSL_CTRL_SET_MSG_CALLBACK:
1029 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1033 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1037 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
1039 return ctx->sessions;
1042 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1048 case SSL_CTRL_GET_READ_AHEAD:
1049 return(ctx->read_ahead);
1050 case SSL_CTRL_SET_READ_AHEAD:
1052 ctx->read_ahead=larg;
1055 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1056 ctx->msg_callback_arg = parg;
1059 case SSL_CTRL_GET_MAX_CERT_LIST:
1060 return(ctx->max_cert_list);
1061 case SSL_CTRL_SET_MAX_CERT_LIST:
1062 l=ctx->max_cert_list;
1063 ctx->max_cert_list=larg;
1066 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1067 l=ctx->session_cache_size;
1068 ctx->session_cache_size=larg;
1070 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1071 return(ctx->session_cache_size);
1072 case SSL_CTRL_SET_SESS_CACHE_MODE:
1073 l=ctx->session_cache_mode;
1074 ctx->session_cache_mode=larg;
1076 case SSL_CTRL_GET_SESS_CACHE_MODE:
1077 return(ctx->session_cache_mode);
1079 case SSL_CTRL_SESS_NUMBER:
1080 return(ctx->sessions->num_items);
1081 case SSL_CTRL_SESS_CONNECT:
1082 return(ctx->stats.sess_connect);
1083 case SSL_CTRL_SESS_CONNECT_GOOD:
1084 return(ctx->stats.sess_connect_good);
1085 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1086 return(ctx->stats.sess_connect_renegotiate);
1087 case SSL_CTRL_SESS_ACCEPT:
1088 return(ctx->stats.sess_accept);
1089 case SSL_CTRL_SESS_ACCEPT_GOOD:
1090 return(ctx->stats.sess_accept_good);
1091 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1092 return(ctx->stats.sess_accept_renegotiate);
1093 case SSL_CTRL_SESS_HIT:
1094 return(ctx->stats.sess_hit);
1095 case SSL_CTRL_SESS_CB_HIT:
1096 return(ctx->stats.sess_cb_hit);
1097 case SSL_CTRL_SESS_MISSES:
1098 return(ctx->stats.sess_miss);
1099 case SSL_CTRL_SESS_TIMEOUTS:
1100 return(ctx->stats.sess_timeout);
1101 case SSL_CTRL_SESS_CACHE_FULL:
1102 return(ctx->stats.sess_cache_full);
1103 case SSL_CTRL_OPTIONS:
1104 return(ctx->options|=larg);
1105 case SSL_CTRL_CLEAR_OPTIONS:
1106 return(ctx->options&=~larg);
1108 return(ctx->mode|=larg);
1109 case SSL_CTRL_CLEAR_MODE:
1110 return(ctx->mode&=~larg);
1112 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1116 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1120 case SSL_CTRL_SET_MSG_CALLBACK:
1121 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1125 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1129 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1137 return((l > 0)?1:-1);
1140 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1141 const SSL_CIPHER * const *bp)
1145 l=(*ap)->id-(*bp)->id;
1149 return((l > 0)?1:-1);
1152 /** return a STACK of the ciphers available for the SSL and in order of
1154 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1158 if (s->cipher_list != NULL)
1160 return(s->cipher_list);
1162 else if ((s->ctx != NULL) &&
1163 (s->ctx->cipher_list != NULL))
1165 return(s->ctx->cipher_list);
1171 /** return a STACK of the ciphers available for the SSL and in order of
1173 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1177 if (s->cipher_list_by_id != NULL)
1179 return(s->cipher_list_by_id);
1181 else if ((s->ctx != NULL) &&
1182 (s->ctx->cipher_list_by_id != NULL))
1184 return(s->ctx->cipher_list_by_id);
1190 /** The old interface to get the same thing as SSL_get_ciphers() */
1191 const char *SSL_get_cipher_list(const SSL *s,int n)
1194 STACK_OF(SSL_CIPHER) *sk;
1196 if (s == NULL) return(NULL);
1197 sk=SSL_get_ciphers(s);
1198 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1200 c=sk_SSL_CIPHER_value(sk,n);
1201 if (c == NULL) return(NULL);
1205 /** specify the ciphers to be used by default by the SSL_CTX */
1206 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1208 STACK_OF(SSL_CIPHER) *sk;
1210 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1211 &ctx->cipher_list_by_id,str);
1212 /* ssl_create_cipher_list may return an empty stack if it
1213 * was unable to find a cipher matching the given rule string
1214 * (for example if the rule string specifies a cipher which
1215 * has been disabled). This is not an error as far as
1216 * ssl_create_cipher_list is concerned, and hence
1217 * ctx->cipher_list and ctx->cipher_list_by_id has been
1221 else if (sk_SSL_CIPHER_num(sk) == 0)
1223 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1229 /** specify the ciphers to be used by the SSL */
1230 int SSL_set_cipher_list(SSL *s,const char *str)
1232 STACK_OF(SSL_CIPHER) *sk;
1234 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1235 &s->cipher_list_by_id,str);
1236 /* see comment in SSL_CTX_set_cipher_list */
1239 else if (sk_SSL_CIPHER_num(sk) == 0)
1241 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1247 /* works well for SSLv2, not so good for SSLv3 */
1248 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1251 STACK_OF(SSL_CIPHER) *sk;
1255 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1260 sk=s->session->ciphers;
1261 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1265 c=sk_SSL_CIPHER_value(sk,i);
1283 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1284 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1289 #ifndef OPENSSL_NO_KRB5
1290 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1291 #endif /* OPENSSL_NO_KRB5 */
1293 if (sk == NULL) return(0);
1296 put_cb = s->method->put_cipher_by_char;
1298 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1300 c=sk_SSL_CIPHER_value(sk,i);
1301 #ifndef OPENSSL_NO_KRB5
1302 if ((c->algorithms & SSL_KRB5) && nokrb5)
1304 #endif /* OPENSSL_NO_KRB5 */
1309 /* If p == q, no ciphers; caller indicates an error.
1310 * Otherwise, add applicable SCSVs. */
1313 if (!s->new_session)
1315 static SSL_CIPHER scsv =
1317 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0,
1319 j = put_cb(&scsv,p);
1321 #ifdef OPENSSL_RI_DEBUG
1322 fprintf(stderr, "TLS_EMPTY_RENEGOTIATION_INFO_SCSV sent by client\n");
1326 if (s->mode & SSL_MODE_SEND_FALLBACK_SCSV)
1328 static SSL_CIPHER scsv =
1330 0, NULL, SSL3_CK_FALLBACK_SCSV, 0, 0, 0, 0, 0, 0, 0,
1332 j = put_cb(&scsv,p);
1340 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1341 STACK_OF(SSL_CIPHER) **skp)
1344 STACK_OF(SSL_CIPHER) *sk;
1348 s->s3->send_connection_binding = 0;
1350 n=ssl_put_cipher_by_char(s,NULL,NULL);
1351 if (n == 0 || (num%n) != 0)
1353 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1356 if ((skp == NULL) || (*skp == NULL))
1357 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1361 sk_SSL_CIPHER_zero(sk);
1364 for (i=0; i<num; i+=n)
1366 /* Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV */
1367 if (s->s3 && (n != 3 || !p[0]) &&
1368 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1369 (p[n-1] == (SSL3_CK_SCSV & 0xff)))
1371 /* SCSV fatal if renegotiating */
1374 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1375 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1378 s->s3->send_connection_binding = 1;
1380 #ifdef OPENSSL_RI_DEBUG
1381 fprintf(stderr, "SCSV received by server\n");
1386 /* Check for TLS_FALLBACK_SCSV */
1387 if ((n != 3 || !p[0]) &&
1388 (p[n-2] == ((SSL3_CK_FALLBACK_SCSV >> 8) & 0xff)) &&
1389 (p[n-1] == (SSL3_CK_FALLBACK_SCSV & 0xff)))
1391 /* The SCSV indicates that the client previously tried a higher version.
1392 * Fail if the current version is an unexpected downgrade. */
1393 if (!SSL_ctrl(s, SSL_CTRL_CHECK_PROTO_VERSION, 0, NULL))
1395 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_INAPPROPRIATE_FALLBACK);
1397 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_INAPPROPRIATE_FALLBACK);
1403 c=ssl_get_cipher_by_char(s,p);
1407 if (!sk_SSL_CIPHER_push(sk,c))
1409 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1419 if ((skp == NULL) || (*skp == NULL))
1420 sk_SSL_CIPHER_free(sk);
1424 #ifndef OPENSSL_NO_TLSEXT
1425 /** return a servername extension value if provided in Client Hello, or NULL.
1426 * So far, only host_name types are defined (RFC 3546).
1429 const char *SSL_get_servername(const SSL *s, const int type)
1431 if (type != TLSEXT_NAMETYPE_host_name)
1434 return s->session && !s->tlsext_hostname ?
1435 s->session->tlsext_hostname :
1439 int SSL_get_servername_type(const SSL *s)
1441 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1442 return TLSEXT_NAMETYPE_host_name;
1447 unsigned long SSL_SESSION_hash(const SSL_SESSION *a)
1452 ((unsigned int) a->session_id[0] )|
1453 ((unsigned int) a->session_id[1]<< 8L)|
1454 ((unsigned long)a->session_id[2]<<16L)|
1455 ((unsigned long)a->session_id[3]<<24L);
1459 /* NB: If this function (or indeed the hash function which uses a sort of
1460 * coarser function than this one) is changed, ensure
1461 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1462 * able to construct an SSL_SESSION that will collide with any existing session
1463 * with a matching session ID. */
1464 int SSL_SESSION_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1466 if (a->ssl_version != b->ssl_version)
1468 if (a->session_id_length != b->session_id_length)
1470 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1473 /* These wrapper functions should remain rather than redeclaring
1474 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1475 * variable. The reason is that the functions aren't static, they're exposed via
1477 static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *)
1478 static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *)
1480 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1486 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1491 if (FIPS_mode() && (meth->version < TLS1_VERSION))
1493 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1498 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1500 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1503 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1507 memset(ret,0,sizeof(SSL_CTX));
1511 ret->cert_store=NULL;
1512 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1513 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1514 ret->session_cache_head=NULL;
1515 ret->session_cache_tail=NULL;
1517 /* We take the system default */
1518 ret->session_timeout=meth->get_timeout();
1520 ret->new_session_cb=0;
1521 ret->remove_session_cb=0;
1522 ret->get_session_cb=0;
1523 ret->generate_session_id=0;
1525 memset((char *)&ret->stats,0,sizeof(ret->stats));
1528 ret->quiet_shutdown=0;
1530 /* ret->cipher=NULL;*/
1531 /* ret->s2->challenge=NULL;
1532 ret->master_key=NULL;
1534 ret->s2->conn_id=NULL; */
1536 ret->info_callback=NULL;
1538 ret->app_verify_callback=0;
1539 ret->app_verify_arg=NULL;
1541 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1543 ret->msg_callback=0;
1544 ret->msg_callback_arg=NULL;
1545 ret->verify_mode=SSL_VERIFY_NONE;
1547 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1549 ret->sid_ctx_length=0;
1550 ret->default_verify_callback=NULL;
1551 if ((ret->cert=ssl_cert_new()) == NULL)
1554 ret->default_passwd_callback=0;
1555 ret->default_passwd_callback_userdata=NULL;
1556 ret->client_cert_cb=0;
1557 ret->app_gen_cookie_cb=0;
1558 ret->app_verify_cookie_cb=0;
1560 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash),
1561 LHASH_COMP_FN(SSL_SESSION_cmp));
1562 if (ret->sessions == NULL) goto err;
1563 ret->cert_store=X509_STORE_new();
1564 if (ret->cert_store == NULL) goto err;
1566 ssl_create_cipher_list(ret->method,
1567 &ret->cipher_list,&ret->cipher_list_by_id,
1568 SSL_DEFAULT_CIPHER_LIST);
1569 if (ret->cipher_list == NULL
1570 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1572 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1576 ret->param = X509_VERIFY_PARAM_new();
1580 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1582 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1585 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1587 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1590 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1592 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1596 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1599 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1601 ret->extra_certs=NULL;
1602 ret->comp_methods=SSL_COMP_get_compression_methods();
1604 #ifndef OPENSSL_NO_TLSEXT
1605 ret->tlsext_servername_callback = 0;
1606 ret->tlsext_servername_arg = NULL;
1607 /* Setup RFC4507 ticket keys */
1608 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1609 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1610 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1611 ret->options |= SSL_OP_NO_TICKET;
1613 ret->tlsext_status_cb = 0;
1614 ret->tlsext_status_arg = NULL;
1618 #ifndef OPENSSL_NO_ENGINE
1619 ret->client_cert_engine = NULL;
1620 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1621 #define eng_strx(x) #x
1622 #define eng_str(x) eng_strx(x)
1623 /* Use specific client engine automatically... ignore errors */
1626 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1630 ENGINE_load_builtin_engines();
1631 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1633 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1638 /* Default is to connect to non-RI servers. When RI is more widely
1639 * deployed might change this.
1641 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
1645 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1647 if (ret != NULL) SSL_CTX_free(ret);
1652 static void SSL_COMP_free(SSL_COMP *comp)
1653 { OPENSSL_free(comp); }
1656 void SSL_CTX_free(SSL_CTX *a)
1660 if (a == NULL) return;
1662 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1664 REF_PRINT("SSL_CTX",a);
1670 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1676 X509_VERIFY_PARAM_free(a->param);
1679 * Free internal session cache. However: the remove_cb() may reference
1680 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1681 * after the sessions were flushed.
1682 * As the ex_data handling routines might also touch the session cache,
1683 * the most secure solution seems to be: empty (flush) the cache, then
1684 * free ex_data, then finally free the cache.
1685 * (See ticket [openssl.org #212].)
1687 if (a->sessions != NULL)
1688 SSL_CTX_flush_sessions(a,0);
1690 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1692 if (a->sessions != NULL)
1693 lh_free(a->sessions);
1695 if (a->cert_store != NULL)
1696 X509_STORE_free(a->cert_store);
1697 if (a->cipher_list != NULL)
1698 sk_SSL_CIPHER_free(a->cipher_list);
1699 if (a->cipher_list_by_id != NULL)
1700 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1701 if (a->cert != NULL)
1702 ssl_cert_free(a->cert);
1703 if (a->client_CA != NULL)
1704 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1705 if (a->extra_certs != NULL)
1706 sk_X509_pop_free(a->extra_certs,X509_free);
1707 #if 0 /* This should never be done, since it removes a global database */
1708 if (a->comp_methods != NULL)
1709 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1711 a->comp_methods = NULL;
1713 #ifndef OPENSSL_NO_ENGINE
1714 if (a->client_cert_engine)
1715 ENGINE_finish(a->client_cert_engine);
1720 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1722 ctx->default_passwd_callback=cb;
1725 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1727 ctx->default_passwd_callback_userdata=u;
1730 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1732 ctx->app_verify_callback=cb;
1733 ctx->app_verify_arg=arg;
1736 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1738 ctx->verify_mode=mode;
1739 ctx->default_verify_callback=cb;
1742 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1744 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
1747 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1750 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1751 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1752 int rsa_tmp_export,dh_tmp_export,kl;
1753 unsigned long mask,emask;
1754 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size;
1755 #ifndef OPENSSL_NO_ECDH
1759 EVP_PKEY *ecc_pkey = NULL;
1760 int signature_nid = 0;
1762 if (c == NULL) return;
1764 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1766 #ifndef OPENSSL_NO_RSA
1767 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1768 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1769 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1771 rsa_tmp=rsa_tmp_export=0;
1773 #ifndef OPENSSL_NO_DH
1774 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1775 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1776 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1778 dh_tmp=dh_tmp_export=0;
1781 #ifndef OPENSSL_NO_ECDH
1782 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL);
1784 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1785 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1786 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1787 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1788 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1789 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1790 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1791 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1792 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1793 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1794 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1795 /* FIX THIS EAY EAY EAY */
1796 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1797 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1798 cpk= &(c->pkeys[SSL_PKEY_ECC]);
1799 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL);
1804 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1805 rsa_tmp,rsa_tmp_export,dh_tmp,
1806 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1809 if (rsa_enc || (rsa_tmp && rsa_sign))
1811 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1815 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1816 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1817 (rsa_enc || rsa_sign || dsa_sign))
1819 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1820 (rsa_enc || rsa_sign || dsa_sign))
1830 if (dh_rsa) mask|=SSL_kDHr;
1831 if (dh_rsa_export) emask|=SSL_kDHr;
1833 if (dh_dsa) mask|=SSL_kDHd;
1834 if (dh_dsa_export) emask|=SSL_kDHd;
1836 if (rsa_enc || rsa_sign)
1851 #ifndef OPENSSL_NO_KRB5
1852 mask|=SSL_kKRB5|SSL_aKRB5;
1853 emask|=SSL_kKRB5|SSL_aKRB5;
1856 /* An ECC certificate may be usable for ECDH and/or
1857 * ECDSA cipher suites depending on the key usage extension.
1861 /* This call populates extension flags (ex_flags) */
1862 x = (c->pkeys[SSL_PKEY_ECC]).x509;
1863 X509_check_purpose(x, -1, 0);
1864 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1865 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
1866 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1867 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
1868 ecc_pkey = X509_get_pubkey(x);
1869 ecc_pkey_size = (ecc_pkey != NULL) ?
1870 EVP_PKEY_bits(ecc_pkey) : 0;
1871 EVP_PKEY_free(ecc_pkey);
1872 if ((x->sig_alg) && (x->sig_alg->algorithm))
1873 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1874 #ifndef OPENSSL_NO_ECDH
1877 if ((signature_nid == NID_md5WithRSAEncryption) ||
1878 (signature_nid == NID_md4WithRSAEncryption) ||
1879 (signature_nid == NID_md2WithRSAEncryption))
1881 mask|=SSL_kECDH|SSL_aRSA;
1882 if (ecc_pkey_size <= 163)
1883 emask|=SSL_kECDH|SSL_aRSA;
1885 if (signature_nid == NID_ecdsa_with_SHA1)
1887 mask|=SSL_kECDH|SSL_aECDSA;
1888 if (ecc_pkey_size <= 163)
1889 emask|=SSL_kECDH|SSL_aECDSA;
1893 #ifndef OPENSSL_NO_ECDSA
1902 #ifndef OPENSSL_NO_ECDH
1910 c->export_mask=emask;
1914 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
1915 #define ku_reject(x, usage) \
1916 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
1918 int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs)
1920 unsigned long alg = cs->algorithms;
1921 EVP_PKEY *pkey = NULL;
1923 int signature_nid = 0;
1925 if (SSL_C_IS_EXPORT(cs))
1927 /* ECDH key length in export ciphers must be <= 163 bits */
1928 pkey = X509_get_pubkey(x);
1929 if (pkey == NULL) return 0;
1930 keysize = EVP_PKEY_bits(pkey);
1931 EVP_PKEY_free(pkey);
1932 if (keysize > 163) return 0;
1935 /* This call populates the ex_flags field correctly */
1936 X509_check_purpose(x, -1, 0);
1937 if ((x->sig_alg) && (x->sig_alg->algorithm))
1938 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1939 if (alg & SSL_kECDH)
1941 /* key usage, if present, must allow key agreement */
1942 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
1946 if (alg & SSL_aECDSA)
1948 /* signature alg must be ECDSA */
1949 if (signature_nid != NID_ecdsa_with_SHA1)
1956 /* signature alg must be RSA */
1957 if ((signature_nid != NID_md5WithRSAEncryption) &&
1958 (signature_nid != NID_md4WithRSAEncryption) &&
1959 (signature_nid != NID_md2WithRSAEncryption))
1965 else if (alg & SSL_aECDSA)
1967 /* key usage, if present, must allow signing */
1968 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
1974 return 1; /* all checks are ok */
1977 /* THIS NEEDS CLEANING UP */
1978 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s)
1980 unsigned long alg,kalg;
1985 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1986 alg=s->s3->tmp.new_cipher->algorithms;
1987 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1989 if (kalg & SSL_kECDH)
1991 /* we don't need to look at SSL_kECDHE
1992 * since no certificate is needed for
1993 * anon ECDH and for authenticated
1994 * ECDHE, the check for the auth
1995 * algorithm will set i correctly
1996 * NOTE: For ECDH-RSA, we need an ECC
1997 * not an RSA cert but for ECDHE-RSA
1998 * we need an RSA cert. Placing the
1999 * checks for SSL_kECDH before RSA
2000 * checks ensures the correct cert is chosen.
2004 else if (kalg & SSL_aECDSA)
2008 else if (kalg & SSL_kDHr)
2010 else if (kalg & SSL_kDHd)
2012 else if (kalg & SSL_aDSS)
2013 i=SSL_PKEY_DSA_SIGN;
2014 else if (kalg & SSL_aRSA)
2016 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
2017 i=SSL_PKEY_RSA_SIGN;
2021 else if (kalg & SSL_aKRB5)
2023 /* VRS something else here? */
2026 else /* if (kalg & SSL_aNULL) */
2028 SSLerr(SSL_F_SSL_GET_SERVER_SEND_PKEY,ERR_R_INTERNAL_ERROR);
2032 return c->pkeys + i;
2035 X509 *ssl_get_server_send_cert(const SSL *s)
2038 cpk = ssl_get_server_send_pkey(s);
2044 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
2049 alg=cipher->algorithms;
2052 if ((alg & SSL_aDSS) &&
2053 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2054 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
2055 else if (alg & SSL_aRSA)
2057 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2058 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
2059 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2060 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
2064 else if ((alg & SSL_aECDSA) &&
2065 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2066 return(c->pkeys[SSL_PKEY_ECC].privatekey);
2067 else /* if (alg & SSL_aNULL) */
2069 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2074 void ssl_update_cache(SSL *s,int mode)
2078 /* If the session_id_length is 0, we are not supposed to cache it,
2079 * and it would be rather hard to do anyway :-) */
2080 if (s->session->session_id_length == 0) return;
2082 i=s->ctx->session_cache_mode;
2083 if ((i & mode) && (!s->hit)
2084 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2085 || SSL_CTX_add_session(s->ctx,s->session))
2086 && (s->ctx->new_session_cb != NULL))
2088 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2089 if (!s->ctx->new_session_cb(s,s->session))
2090 SSL_SESSION_free(s->session);
2093 /* auto flush every 255 connections */
2094 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2095 ((i & mode) == mode))
2097 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2098 ?s->ctx->stats.sess_connect_good
2099 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
2101 SSL_CTX_flush_sessions(s->ctx,(unsigned long)time(NULL));
2106 SSL_METHOD *SSL_get_ssl_method(SSL *s)
2111 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
2116 if (s->method != meth)
2118 if (s->handshake_func != NULL)
2119 conn=(s->handshake_func == s->method->ssl_connect);
2121 if (s->method->version == meth->version)
2125 s->method->ssl_free(s);
2127 ret=s->method->ssl_new(s);
2131 s->handshake_func=meth->ssl_connect;
2133 s->handshake_func=meth->ssl_accept;
2138 int SSL_get_error(const SSL *s,int i)
2144 if (i > 0) return(SSL_ERROR_NONE);
2146 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2147 * etc, where we do encode the error */
2148 if ((l=ERR_peek_error()) != 0)
2150 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2151 return(SSL_ERROR_SYSCALL);
2153 return(SSL_ERROR_SSL);
2156 if ((i < 0) && SSL_want_read(s))
2158 bio=SSL_get_rbio(s);
2159 if (BIO_should_read(bio))
2160 return(SSL_ERROR_WANT_READ);
2161 else if (BIO_should_write(bio))
2162 /* This one doesn't make too much sense ... We never try
2163 * to write to the rbio, and an application program where
2164 * rbio and wbio are separate couldn't even know what it
2166 * However if we ever set s->rwstate incorrectly
2167 * (so that we have SSL_want_read(s) instead of
2168 * SSL_want_write(s)) and rbio and wbio *are* the same,
2169 * this test works around that bug; so it might be safer
2171 return(SSL_ERROR_WANT_WRITE);
2172 else if (BIO_should_io_special(bio))
2174 reason=BIO_get_retry_reason(bio);
2175 if (reason == BIO_RR_CONNECT)
2176 return(SSL_ERROR_WANT_CONNECT);
2177 else if (reason == BIO_RR_ACCEPT)
2178 return(SSL_ERROR_WANT_ACCEPT);
2180 return(SSL_ERROR_SYSCALL); /* unknown */
2184 if ((i < 0) && SSL_want_write(s))
2186 bio=SSL_get_wbio(s);
2187 if (BIO_should_write(bio))
2188 return(SSL_ERROR_WANT_WRITE);
2189 else if (BIO_should_read(bio))
2190 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2191 return(SSL_ERROR_WANT_READ);
2192 else if (BIO_should_io_special(bio))
2194 reason=BIO_get_retry_reason(bio);
2195 if (reason == BIO_RR_CONNECT)
2196 return(SSL_ERROR_WANT_CONNECT);
2197 else if (reason == BIO_RR_ACCEPT)
2198 return(SSL_ERROR_WANT_ACCEPT);
2200 return(SSL_ERROR_SYSCALL);
2203 if ((i < 0) && SSL_want_x509_lookup(s))
2205 return(SSL_ERROR_WANT_X509_LOOKUP);
2210 if (s->version == SSL2_VERSION)
2212 /* assume it is the socket being closed */
2213 return(SSL_ERROR_ZERO_RETURN);
2217 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2218 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2219 return(SSL_ERROR_ZERO_RETURN);
2222 return(SSL_ERROR_SYSCALL);
2225 int SSL_do_handshake(SSL *s)
2229 if (s->handshake_func == NULL)
2231 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2235 s->method->ssl_renegotiate_check(s);
2237 if (SSL_in_init(s) || SSL_in_before(s))
2239 ret=s->handshake_func(s);
2244 /* For the next 2 functions, SSL_clear() sets shutdown and so
2245 * one of these calls will reset it */
2246 void SSL_set_accept_state(SSL *s)
2250 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2251 s->handshake_func=s->method->ssl_accept;
2252 /* clear the current cipher */
2253 ssl_clear_cipher_ctx(s);
2256 void SSL_set_connect_state(SSL *s)
2260 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2261 s->handshake_func=s->method->ssl_connect;
2262 /* clear the current cipher */
2263 ssl_clear_cipher_ctx(s);
2266 int ssl_undefined_function(SSL *s)
2268 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2272 int ssl_undefined_void_function(void)
2274 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2278 int ssl_undefined_const_function(const SSL *s)
2280 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2284 SSL_METHOD *ssl_bad_method(int ver)
2286 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2290 const char *SSL_get_version(const SSL *s)
2292 if (s->version == TLS1_VERSION)
2294 else if (s->version == SSL3_VERSION)
2296 else if (s->version == SSL2_VERSION)
2302 SSL *SSL_dup(SSL *s)
2304 STACK_OF(X509_NAME) *sk;
2309 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2312 ret->version = s->version;
2313 ret->type = s->type;
2314 ret->method = s->method;
2316 if (s->session != NULL)
2318 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2319 SSL_copy_session_id(ret,s);
2323 /* No session has been established yet, so we have to expect
2324 * that s->cert or ret->cert will be changed later --
2325 * they should not both point to the same object,
2326 * and thus we can't use SSL_copy_session_id. */
2328 ret->method->ssl_free(ret);
2329 ret->method = s->method;
2330 ret->method->ssl_new(ret);
2332 if (s->cert != NULL)
2334 if (ret->cert != NULL)
2336 ssl_cert_free(ret->cert);
2338 ret->cert = ssl_cert_dup(s->cert);
2339 if (ret->cert == NULL)
2343 SSL_set_session_id_context(ret,
2344 s->sid_ctx, s->sid_ctx_length);
2347 ret->options=s->options;
2349 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2350 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2351 ret->msg_callback = s->msg_callback;
2352 ret->msg_callback_arg = s->msg_callback_arg;
2353 SSL_set_verify(ret,SSL_get_verify_mode(s),
2354 SSL_get_verify_callback(s));
2355 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2356 ret->generate_session_id = s->generate_session_id;
2358 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2360 ret->debug=s->debug;
2362 /* copy app data, a little dangerous perhaps */
2363 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2366 /* setup rbio, and wbio */
2367 if (s->rbio != NULL)
2369 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2372 if (s->wbio != NULL)
2374 if (s->wbio != s->rbio)
2376 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2380 ret->wbio=ret->rbio;
2382 ret->rwstate = s->rwstate;
2383 ret->in_handshake = s->in_handshake;
2384 ret->handshake_func = s->handshake_func;
2385 ret->server = s->server;
2386 ret->new_session = s->new_session;
2387 ret->quiet_shutdown = s->quiet_shutdown;
2388 ret->shutdown=s->shutdown;
2389 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2390 ret->rstate=s->rstate;
2391 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2394 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2396 /* dup the cipher_list and cipher_list_by_id stacks */
2397 if (s->cipher_list != NULL)
2399 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2402 if (s->cipher_list_by_id != NULL)
2403 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2407 /* Dup the client_CA list */
2408 if (s->client_CA != NULL)
2410 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2412 for (i=0; i<sk_X509_NAME_num(sk); i++)
2414 xn=sk_X509_NAME_value(sk,i);
2415 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2426 if (ret != NULL) SSL_free(ret);
2432 void ssl_clear_cipher_ctx(SSL *s)
2434 if (s->enc_read_ctx != NULL)
2436 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2437 OPENSSL_free(s->enc_read_ctx);
2438 s->enc_read_ctx=NULL;
2440 if (s->enc_write_ctx != NULL)
2442 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2443 OPENSSL_free(s->enc_write_ctx);
2444 s->enc_write_ctx=NULL;
2446 #ifndef OPENSSL_NO_COMP
2447 if (s->expand != NULL)
2449 COMP_CTX_free(s->expand);
2452 if (s->compress != NULL)
2454 COMP_CTX_free(s->compress);
2460 /* Fix this function so that it takes an optional type parameter */
2461 X509 *SSL_get_certificate(const SSL *s)
2464 return(ssl_get_server_send_cert(s));
2465 else if (s->cert != NULL)
2466 return(s->cert->key->x509);
2471 /* Fix this function so that it takes an optional type parameter */
2472 EVP_PKEY *SSL_get_privatekey(SSL *s)
2474 if (s->cert != NULL)
2475 return(s->cert->key->privatekey);
2480 SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2482 if ((s->session != NULL) && (s->session->cipher != NULL))
2483 return(s->session->cipher);
2486 #ifdef OPENSSL_NO_COMP
2487 const void *SSL_get_current_compression(SSL *s)
2491 const void *SSL_get_current_expansion(SSL *s)
2497 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2499 if (s->compress != NULL)
2500 return(s->compress->meth);
2504 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2506 if (s->expand != NULL)
2507 return(s->expand->meth);
2512 int ssl_init_wbio_buffer(SSL *s,int push)
2516 if (s->bbio == NULL)
2518 bbio=BIO_new(BIO_f_buffer());
2519 if (bbio == NULL) return(0);
2525 if (s->bbio == s->wbio)
2526 s->wbio=BIO_pop(s->wbio);
2528 (void)BIO_reset(bbio);
2529 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2530 if (!BIO_set_read_buffer_size(bbio,1))
2532 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2537 if (s->wbio != bbio)
2538 s->wbio=BIO_push(bbio,s->wbio);
2542 if (s->wbio == bbio)
2543 s->wbio=BIO_pop(bbio);
2548 void ssl_free_wbio_buffer(SSL *s)
2550 if (s->bbio == NULL) return;
2552 if (s->bbio == s->wbio)
2554 /* remove buffering */
2555 s->wbio=BIO_pop(s->wbio);
2556 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2557 assert(s->wbio != NULL);
2564 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2566 ctx->quiet_shutdown=mode;
2569 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2571 return(ctx->quiet_shutdown);
2574 void SSL_set_quiet_shutdown(SSL *s,int mode)
2576 s->quiet_shutdown=mode;
2579 int SSL_get_quiet_shutdown(const SSL *s)
2581 return(s->quiet_shutdown);
2584 void SSL_set_shutdown(SSL *s,int mode)
2589 int SSL_get_shutdown(const SSL *s)
2591 return(s->shutdown);
2594 int SSL_version(const SSL *s)
2599 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2604 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
2606 if (ssl->ctx == ctx)
2608 #ifndef OPENSSL_NO_TLSEXT
2610 ctx = ssl->initial_ctx;
2612 if (ssl->cert != NULL)
2613 ssl_cert_free(ssl->cert);
2614 ssl->cert = ssl_cert_dup(ctx->cert);
2615 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
2616 if (ssl->ctx != NULL)
2617 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2622 #ifndef OPENSSL_NO_STDIO
2623 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2625 return(X509_STORE_set_default_paths(ctx->cert_store));
2628 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2631 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
2635 void SSL_set_info_callback(SSL *ssl,
2636 void (*cb)(const SSL *ssl,int type,int val))
2638 ssl->info_callback=cb;
2641 /* One compiler (Diab DCC) doesn't like argument names in returned
2642 function pointer. */
2643 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
2645 return ssl->info_callback;
2648 int SSL_state(const SSL *ssl)
2653 void SSL_set_verify_result(SSL *ssl,long arg)
2655 ssl->verify_result=arg;
2658 long SSL_get_verify_result(const SSL *ssl)
2660 return(ssl->verify_result);
2663 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2664 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2666 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2667 new_func, dup_func, free_func);
2670 int SSL_set_ex_data(SSL *s,int idx,void *arg)
2672 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2675 void *SSL_get_ex_data(const SSL *s,int idx)
2677 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2680 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2681 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2683 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2684 new_func, dup_func, free_func);
2687 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2689 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2692 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
2694 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2702 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2704 return(ctx->cert_store);
2707 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2709 if (ctx->cert_store != NULL)
2710 X509_STORE_free(ctx->cert_store);
2711 ctx->cert_store=store;
2714 int SSL_want(const SSL *s)
2720 * \brief Set the callback for generating temporary RSA keys.
2721 * \param ctx the SSL context.
2722 * \param cb the callback
2725 #ifndef OPENSSL_NO_RSA
2726 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2730 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2733 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2737 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2743 * \brief The RSA temporary key callback function.
2744 * \param ssl the SSL session.
2745 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2746 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2747 * of the required key in bits.
2748 * \return the temporary RSA key.
2749 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2752 RSA *cb(SSL *ssl,int is_export,int keylength)
2757 * \brief Set the callback for generating temporary DH keys.
2758 * \param ctx the SSL context.
2759 * \param dh the callback
2762 #ifndef OPENSSL_NO_DH
2763 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2766 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2769 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2772 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2776 #ifndef OPENSSL_NO_ECDH
2777 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2780 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2783 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2786 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2791 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))
2793 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2795 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))
2797 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2802 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2803 #include "../crypto/bio/bss_file.c"
2806 IMPLEMENT_STACK_OF(SSL_CIPHER)
2807 IMPLEMENT_STACK_OF(SSL_COMP)