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 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1298 c=sk_SSL_CIPHER_value(sk,i);
1299 #ifndef OPENSSL_NO_KRB5
1300 if ((c->algorithms & SSL_KRB5) && nokrb5)
1302 #endif /* OPENSSL_NO_KRB5 */
1304 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1307 /* If p == q, no ciphers and caller indicates an error. Otherwise
1308 * add SCSV if not renegotiating.
1310 if (p != q && !s->new_session)
1312 static SSL_CIPHER scsv =
1314 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0,
1316 j = put_cb ? put_cb(&scsv,p) : ssl_put_cipher_by_char(s,&scsv,p);
1318 #ifdef OPENSSL_RI_DEBUG
1319 fprintf(stderr, "SCSV sent by client\n");
1326 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1327 STACK_OF(SSL_CIPHER) **skp)
1330 STACK_OF(SSL_CIPHER) *sk;
1333 s->s3->send_connection_binding = 0;
1335 n=ssl_put_cipher_by_char(s,NULL,NULL);
1338 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1341 if ((skp == NULL) || (*skp == NULL))
1342 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1346 sk_SSL_CIPHER_zero(sk);
1349 for (i=0; i<num; i+=n)
1351 /* Check for SCSV */
1352 if (s->s3 && (n != 3 || !p[0]) &&
1353 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1354 (p[n-1] == (SSL3_CK_SCSV & 0xff)))
1356 /* SCSV fatal if renegotiating */
1359 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1360 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1363 s->s3->send_connection_binding = 1;
1365 #ifdef OPENSSL_RI_DEBUG
1366 fprintf(stderr, "SCSV received by server\n");
1371 c=ssl_get_cipher_by_char(s,p);
1375 if (!sk_SSL_CIPHER_push(sk,c))
1377 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1387 if ((skp == NULL) || (*skp == NULL))
1388 sk_SSL_CIPHER_free(sk);
1392 #ifndef OPENSSL_NO_TLSEXT
1393 /** return a servername extension value if provided in Client Hello, or NULL.
1394 * So far, only host_name types are defined (RFC 3546).
1397 const char *SSL_get_servername(const SSL *s, const int type)
1399 if (type != TLSEXT_NAMETYPE_host_name)
1402 return s->session && !s->tlsext_hostname ?
1403 s->session->tlsext_hostname :
1407 int SSL_get_servername_type(const SSL *s)
1409 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1410 return TLSEXT_NAMETYPE_host_name;
1415 unsigned long SSL_SESSION_hash(const SSL_SESSION *a)
1420 ((unsigned int) a->session_id[0] )|
1421 ((unsigned int) a->session_id[1]<< 8L)|
1422 ((unsigned long)a->session_id[2]<<16L)|
1423 ((unsigned long)a->session_id[3]<<24L);
1427 /* NB: If this function (or indeed the hash function which uses a sort of
1428 * coarser function than this one) is changed, ensure
1429 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1430 * able to construct an SSL_SESSION that will collide with any existing session
1431 * with a matching session ID. */
1432 int SSL_SESSION_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1434 if (a->ssl_version != b->ssl_version)
1436 if (a->session_id_length != b->session_id_length)
1438 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1441 /* These wrapper functions should remain rather than redeclaring
1442 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1443 * variable. The reason is that the functions aren't static, they're exposed via
1445 static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *)
1446 static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *)
1448 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1454 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1459 if (FIPS_mode() && (meth->version < TLS1_VERSION))
1461 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1466 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1468 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1471 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1475 memset(ret,0,sizeof(SSL_CTX));
1479 ret->cert_store=NULL;
1480 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1481 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1482 ret->session_cache_head=NULL;
1483 ret->session_cache_tail=NULL;
1485 /* We take the system default */
1486 ret->session_timeout=meth->get_timeout();
1488 ret->new_session_cb=0;
1489 ret->remove_session_cb=0;
1490 ret->get_session_cb=0;
1491 ret->generate_session_id=0;
1493 memset((char *)&ret->stats,0,sizeof(ret->stats));
1496 ret->quiet_shutdown=0;
1498 /* ret->cipher=NULL;*/
1499 /* ret->s2->challenge=NULL;
1500 ret->master_key=NULL;
1502 ret->s2->conn_id=NULL; */
1504 ret->info_callback=NULL;
1506 ret->app_verify_callback=0;
1507 ret->app_verify_arg=NULL;
1509 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1511 ret->msg_callback=0;
1512 ret->msg_callback_arg=NULL;
1513 ret->verify_mode=SSL_VERIFY_NONE;
1515 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1517 ret->sid_ctx_length=0;
1518 ret->default_verify_callback=NULL;
1519 if ((ret->cert=ssl_cert_new()) == NULL)
1522 ret->default_passwd_callback=0;
1523 ret->default_passwd_callback_userdata=NULL;
1524 ret->client_cert_cb=0;
1525 ret->app_gen_cookie_cb=0;
1526 ret->app_verify_cookie_cb=0;
1528 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash),
1529 LHASH_COMP_FN(SSL_SESSION_cmp));
1530 if (ret->sessions == NULL) goto err;
1531 ret->cert_store=X509_STORE_new();
1532 if (ret->cert_store == NULL) goto err;
1534 ssl_create_cipher_list(ret->method,
1535 &ret->cipher_list,&ret->cipher_list_by_id,
1536 SSL_DEFAULT_CIPHER_LIST);
1537 if (ret->cipher_list == NULL
1538 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1540 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1544 ret->param = X509_VERIFY_PARAM_new();
1548 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1550 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1553 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1555 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1558 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1560 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1564 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1567 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1569 ret->extra_certs=NULL;
1570 ret->comp_methods=SSL_COMP_get_compression_methods();
1572 #ifndef OPENSSL_NO_TLSEXT
1573 ret->tlsext_servername_callback = 0;
1574 ret->tlsext_servername_arg = NULL;
1575 /* Setup RFC4507 ticket keys */
1576 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1577 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1578 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1579 ret->options |= SSL_OP_NO_TICKET;
1581 ret->tlsext_status_cb = 0;
1582 ret->tlsext_status_arg = NULL;
1586 #ifndef OPENSSL_NO_ENGINE
1587 ret->client_cert_engine = NULL;
1588 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1589 #define eng_strx(x) #x
1590 #define eng_str(x) eng_strx(x)
1591 /* Use specific client engine automatically... ignore errors */
1594 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1598 ENGINE_load_builtin_engines();
1599 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1601 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1606 /* Default is to connect to non-RI servers. When RI is more widely
1607 * deployed might change this.
1609 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
1613 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1615 if (ret != NULL) SSL_CTX_free(ret);
1620 static void SSL_COMP_free(SSL_COMP *comp)
1621 { OPENSSL_free(comp); }
1624 void SSL_CTX_free(SSL_CTX *a)
1628 if (a == NULL) return;
1630 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1632 REF_PRINT("SSL_CTX",a);
1638 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1644 X509_VERIFY_PARAM_free(a->param);
1647 * Free internal session cache. However: the remove_cb() may reference
1648 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1649 * after the sessions were flushed.
1650 * As the ex_data handling routines might also touch the session cache,
1651 * the most secure solution seems to be: empty (flush) the cache, then
1652 * free ex_data, then finally free the cache.
1653 * (See ticket [openssl.org #212].)
1655 if (a->sessions != NULL)
1656 SSL_CTX_flush_sessions(a,0);
1658 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1660 if (a->sessions != NULL)
1661 lh_free(a->sessions);
1663 if (a->cert_store != NULL)
1664 X509_STORE_free(a->cert_store);
1665 if (a->cipher_list != NULL)
1666 sk_SSL_CIPHER_free(a->cipher_list);
1667 if (a->cipher_list_by_id != NULL)
1668 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1669 if (a->cert != NULL)
1670 ssl_cert_free(a->cert);
1671 if (a->client_CA != NULL)
1672 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1673 if (a->extra_certs != NULL)
1674 sk_X509_pop_free(a->extra_certs,X509_free);
1675 #if 0 /* This should never be done, since it removes a global database */
1676 if (a->comp_methods != NULL)
1677 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1679 a->comp_methods = NULL;
1681 #ifndef OPENSSL_NO_ENGINE
1682 if (a->client_cert_engine)
1683 ENGINE_finish(a->client_cert_engine);
1688 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1690 ctx->default_passwd_callback=cb;
1693 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1695 ctx->default_passwd_callback_userdata=u;
1698 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1700 ctx->app_verify_callback=cb;
1701 ctx->app_verify_arg=arg;
1704 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1706 ctx->verify_mode=mode;
1707 ctx->default_verify_callback=cb;
1710 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1712 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
1715 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1718 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1719 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1720 int rsa_tmp_export,dh_tmp_export,kl;
1721 unsigned long mask,emask;
1722 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size;
1723 #ifndef OPENSSL_NO_ECDH
1727 EVP_PKEY *ecc_pkey = NULL;
1728 int signature_nid = 0;
1730 if (c == NULL) return;
1732 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1734 #ifndef OPENSSL_NO_RSA
1735 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1736 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1737 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1739 rsa_tmp=rsa_tmp_export=0;
1741 #ifndef OPENSSL_NO_DH
1742 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1743 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1744 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1746 dh_tmp=dh_tmp_export=0;
1749 #ifndef OPENSSL_NO_ECDH
1750 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL);
1752 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1753 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1754 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1755 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1756 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1757 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1758 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1759 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1760 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1761 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1762 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1763 /* FIX THIS EAY EAY EAY */
1764 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1765 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1766 cpk= &(c->pkeys[SSL_PKEY_ECC]);
1767 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL);
1772 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1773 rsa_tmp,rsa_tmp_export,dh_tmp,
1774 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1777 if (rsa_enc || (rsa_tmp && rsa_sign))
1779 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1783 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1784 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1785 (rsa_enc || rsa_sign || dsa_sign))
1787 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1788 (rsa_enc || rsa_sign || dsa_sign))
1798 if (dh_rsa) mask|=SSL_kDHr;
1799 if (dh_rsa_export) emask|=SSL_kDHr;
1801 if (dh_dsa) mask|=SSL_kDHd;
1802 if (dh_dsa_export) emask|=SSL_kDHd;
1804 if (rsa_enc || rsa_sign)
1819 #ifndef OPENSSL_NO_KRB5
1820 mask|=SSL_kKRB5|SSL_aKRB5;
1821 emask|=SSL_kKRB5|SSL_aKRB5;
1824 /* An ECC certificate may be usable for ECDH and/or
1825 * ECDSA cipher suites depending on the key usage extension.
1829 /* This call populates extension flags (ex_flags) */
1830 x = (c->pkeys[SSL_PKEY_ECC]).x509;
1831 X509_check_purpose(x, -1, 0);
1832 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1833 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
1834 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1835 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
1836 ecc_pkey = X509_get_pubkey(x);
1837 ecc_pkey_size = (ecc_pkey != NULL) ?
1838 EVP_PKEY_bits(ecc_pkey) : 0;
1839 EVP_PKEY_free(ecc_pkey);
1840 if ((x->sig_alg) && (x->sig_alg->algorithm))
1841 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1842 #ifndef OPENSSL_NO_ECDH
1845 if ((signature_nid == NID_md5WithRSAEncryption) ||
1846 (signature_nid == NID_md4WithRSAEncryption) ||
1847 (signature_nid == NID_md2WithRSAEncryption))
1849 mask|=SSL_kECDH|SSL_aRSA;
1850 if (ecc_pkey_size <= 163)
1851 emask|=SSL_kECDH|SSL_aRSA;
1853 if (signature_nid == NID_ecdsa_with_SHA1)
1855 mask|=SSL_kECDH|SSL_aECDSA;
1856 if (ecc_pkey_size <= 163)
1857 emask|=SSL_kECDH|SSL_aECDSA;
1861 #ifndef OPENSSL_NO_ECDSA
1870 #ifndef OPENSSL_NO_ECDH
1878 c->export_mask=emask;
1882 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
1883 #define ku_reject(x, usage) \
1884 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
1886 int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs)
1888 unsigned long alg = cs->algorithms;
1889 EVP_PKEY *pkey = NULL;
1891 int signature_nid = 0;
1893 if (SSL_C_IS_EXPORT(cs))
1895 /* ECDH key length in export ciphers must be <= 163 bits */
1896 pkey = X509_get_pubkey(x);
1897 if (pkey == NULL) return 0;
1898 keysize = EVP_PKEY_bits(pkey);
1899 EVP_PKEY_free(pkey);
1900 if (keysize > 163) return 0;
1903 /* This call populates the ex_flags field correctly */
1904 X509_check_purpose(x, -1, 0);
1905 if ((x->sig_alg) && (x->sig_alg->algorithm))
1906 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1907 if (alg & SSL_kECDH)
1909 /* key usage, if present, must allow key agreement */
1910 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
1914 if (alg & SSL_aECDSA)
1916 /* signature alg must be ECDSA */
1917 if (signature_nid != NID_ecdsa_with_SHA1)
1924 /* signature alg must be RSA */
1925 if ((signature_nid != NID_md5WithRSAEncryption) &&
1926 (signature_nid != NID_md4WithRSAEncryption) &&
1927 (signature_nid != NID_md2WithRSAEncryption))
1933 else if (alg & SSL_aECDSA)
1935 /* key usage, if present, must allow signing */
1936 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
1942 return 1; /* all checks are ok */
1945 /* THIS NEEDS CLEANING UP */
1946 X509 *ssl_get_server_send_cert(const SSL *s)
1948 unsigned long alg,kalg;
1953 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1954 alg=s->s3->tmp.new_cipher->algorithms;
1955 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1957 if (kalg & SSL_kECDH)
1959 /* we don't need to look at SSL_kECDHE
1960 * since no certificate is needed for
1961 * anon ECDH and for authenticated
1962 * ECDHE, the check for the auth
1963 * algorithm will set i correctly
1964 * NOTE: For ECDH-RSA, we need an ECC
1965 * not an RSA cert but for ECDHE-RSA
1966 * we need an RSA cert. Placing the
1967 * checks for SSL_kECDH before RSA
1968 * checks ensures the correct cert is chosen.
1972 else if (kalg & SSL_aECDSA)
1976 else if (kalg & SSL_kDHr)
1978 else if (kalg & SSL_kDHd)
1980 else if (kalg & SSL_aDSS)
1981 i=SSL_PKEY_DSA_SIGN;
1982 else if (kalg & SSL_aRSA)
1984 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1985 i=SSL_PKEY_RSA_SIGN;
1989 else if (kalg & SSL_aKRB5)
1991 /* VRS something else here? */
1994 else /* if (kalg & SSL_aNULL) */
1996 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
1999 if (c->pkeys[i].x509 == NULL) return(NULL);
2001 return(c->pkeys[i].x509);
2004 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
2009 alg=cipher->algorithms;
2012 if ((alg & SSL_aDSS) &&
2013 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2014 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
2015 else if (alg & SSL_aRSA)
2017 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2018 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
2019 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2020 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
2024 else if ((alg & SSL_aECDSA) &&
2025 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2026 return(c->pkeys[SSL_PKEY_ECC].privatekey);
2027 else /* if (alg & SSL_aNULL) */
2029 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2034 void ssl_update_cache(SSL *s,int mode)
2038 /* If the session_id_length is 0, we are not supposed to cache it,
2039 * and it would be rather hard to do anyway :-) */
2040 if (s->session->session_id_length == 0) return;
2042 i=s->ctx->session_cache_mode;
2043 if ((i & mode) && (!s->hit)
2044 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2045 || SSL_CTX_add_session(s->ctx,s->session))
2046 && (s->ctx->new_session_cb != NULL))
2048 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2049 if (!s->ctx->new_session_cb(s,s->session))
2050 SSL_SESSION_free(s->session);
2053 /* auto flush every 255 connections */
2054 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2055 ((i & mode) == mode))
2057 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2058 ?s->ctx->stats.sess_connect_good
2059 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
2061 SSL_CTX_flush_sessions(s->ctx,(unsigned long)time(NULL));
2066 SSL_METHOD *SSL_get_ssl_method(SSL *s)
2071 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
2076 if (s->method != meth)
2078 if (s->handshake_func != NULL)
2079 conn=(s->handshake_func == s->method->ssl_connect);
2081 if (s->method->version == meth->version)
2085 s->method->ssl_free(s);
2087 ret=s->method->ssl_new(s);
2091 s->handshake_func=meth->ssl_connect;
2093 s->handshake_func=meth->ssl_accept;
2098 int SSL_get_error(const SSL *s,int i)
2104 if (i > 0) return(SSL_ERROR_NONE);
2106 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2107 * etc, where we do encode the error */
2108 if ((l=ERR_peek_error()) != 0)
2110 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2111 return(SSL_ERROR_SYSCALL);
2113 return(SSL_ERROR_SSL);
2116 if ((i < 0) && SSL_want_read(s))
2118 bio=SSL_get_rbio(s);
2119 if (BIO_should_read(bio))
2120 return(SSL_ERROR_WANT_READ);
2121 else if (BIO_should_write(bio))
2122 /* This one doesn't make too much sense ... We never try
2123 * to write to the rbio, and an application program where
2124 * rbio and wbio are separate couldn't even know what it
2126 * However if we ever set s->rwstate incorrectly
2127 * (so that we have SSL_want_read(s) instead of
2128 * SSL_want_write(s)) and rbio and wbio *are* the same,
2129 * this test works around that bug; so it might be safer
2131 return(SSL_ERROR_WANT_WRITE);
2132 else if (BIO_should_io_special(bio))
2134 reason=BIO_get_retry_reason(bio);
2135 if (reason == BIO_RR_CONNECT)
2136 return(SSL_ERROR_WANT_CONNECT);
2137 else if (reason == BIO_RR_ACCEPT)
2138 return(SSL_ERROR_WANT_ACCEPT);
2140 return(SSL_ERROR_SYSCALL); /* unknown */
2144 if ((i < 0) && SSL_want_write(s))
2146 bio=SSL_get_wbio(s);
2147 if (BIO_should_write(bio))
2148 return(SSL_ERROR_WANT_WRITE);
2149 else if (BIO_should_read(bio))
2150 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2151 return(SSL_ERROR_WANT_READ);
2152 else if (BIO_should_io_special(bio))
2154 reason=BIO_get_retry_reason(bio);
2155 if (reason == BIO_RR_CONNECT)
2156 return(SSL_ERROR_WANT_CONNECT);
2157 else if (reason == BIO_RR_ACCEPT)
2158 return(SSL_ERROR_WANT_ACCEPT);
2160 return(SSL_ERROR_SYSCALL);
2163 if ((i < 0) && SSL_want_x509_lookup(s))
2165 return(SSL_ERROR_WANT_X509_LOOKUP);
2170 if (s->version == SSL2_VERSION)
2172 /* assume it is the socket being closed */
2173 return(SSL_ERROR_ZERO_RETURN);
2177 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2178 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2179 return(SSL_ERROR_ZERO_RETURN);
2182 return(SSL_ERROR_SYSCALL);
2185 int SSL_do_handshake(SSL *s)
2189 if (s->handshake_func == NULL)
2191 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2195 s->method->ssl_renegotiate_check(s);
2197 if (SSL_in_init(s) || SSL_in_before(s))
2199 ret=s->handshake_func(s);
2204 /* For the next 2 functions, SSL_clear() sets shutdown and so
2205 * one of these calls will reset it */
2206 void SSL_set_accept_state(SSL *s)
2210 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2211 s->handshake_func=s->method->ssl_accept;
2212 /* clear the current cipher */
2213 ssl_clear_cipher_ctx(s);
2216 void SSL_set_connect_state(SSL *s)
2220 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2221 s->handshake_func=s->method->ssl_connect;
2222 /* clear the current cipher */
2223 ssl_clear_cipher_ctx(s);
2226 int ssl_undefined_function(SSL *s)
2228 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2232 int ssl_undefined_void_function(void)
2234 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2238 int ssl_undefined_const_function(const SSL *s)
2240 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2244 SSL_METHOD *ssl_bad_method(int ver)
2246 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2250 const char *SSL_get_version(const SSL *s)
2252 if (s->version == TLS1_VERSION)
2254 else if (s->version == SSL3_VERSION)
2256 else if (s->version == SSL2_VERSION)
2262 SSL *SSL_dup(SSL *s)
2264 STACK_OF(X509_NAME) *sk;
2269 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2272 ret->version = s->version;
2273 ret->type = s->type;
2274 ret->method = s->method;
2276 if (s->session != NULL)
2278 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2279 SSL_copy_session_id(ret,s);
2283 /* No session has been established yet, so we have to expect
2284 * that s->cert or ret->cert will be changed later --
2285 * they should not both point to the same object,
2286 * and thus we can't use SSL_copy_session_id. */
2288 ret->method->ssl_free(ret);
2289 ret->method = s->method;
2290 ret->method->ssl_new(ret);
2292 if (s->cert != NULL)
2294 if (ret->cert != NULL)
2296 ssl_cert_free(ret->cert);
2298 ret->cert = ssl_cert_dup(s->cert);
2299 if (ret->cert == NULL)
2303 SSL_set_session_id_context(ret,
2304 s->sid_ctx, s->sid_ctx_length);
2307 ret->options=s->options;
2309 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2310 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2311 ret->msg_callback = s->msg_callback;
2312 ret->msg_callback_arg = s->msg_callback_arg;
2313 SSL_set_verify(ret,SSL_get_verify_mode(s),
2314 SSL_get_verify_callback(s));
2315 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2316 ret->generate_session_id = s->generate_session_id;
2318 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2320 ret->debug=s->debug;
2322 /* copy app data, a little dangerous perhaps */
2323 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2326 /* setup rbio, and wbio */
2327 if (s->rbio != NULL)
2329 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2332 if (s->wbio != NULL)
2334 if (s->wbio != s->rbio)
2336 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2340 ret->wbio=ret->rbio;
2342 ret->rwstate = s->rwstate;
2343 ret->in_handshake = s->in_handshake;
2344 ret->handshake_func = s->handshake_func;
2345 ret->server = s->server;
2346 ret->new_session = s->new_session;
2347 ret->quiet_shutdown = s->quiet_shutdown;
2348 ret->shutdown=s->shutdown;
2349 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2350 ret->rstate=s->rstate;
2351 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2354 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2356 /* dup the cipher_list and cipher_list_by_id stacks */
2357 if (s->cipher_list != NULL)
2359 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2362 if (s->cipher_list_by_id != NULL)
2363 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2367 /* Dup the client_CA list */
2368 if (s->client_CA != NULL)
2370 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2372 for (i=0; i<sk_X509_NAME_num(sk); i++)
2374 xn=sk_X509_NAME_value(sk,i);
2375 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2386 if (ret != NULL) SSL_free(ret);
2392 void ssl_clear_cipher_ctx(SSL *s)
2394 if (s->enc_read_ctx != NULL)
2396 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2397 OPENSSL_free(s->enc_read_ctx);
2398 s->enc_read_ctx=NULL;
2400 if (s->enc_write_ctx != NULL)
2402 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2403 OPENSSL_free(s->enc_write_ctx);
2404 s->enc_write_ctx=NULL;
2406 #ifndef OPENSSL_NO_COMP
2407 if (s->expand != NULL)
2409 COMP_CTX_free(s->expand);
2412 if (s->compress != NULL)
2414 COMP_CTX_free(s->compress);
2420 /* Fix this function so that it takes an optional type parameter */
2421 X509 *SSL_get_certificate(const SSL *s)
2424 return(ssl_get_server_send_cert(s));
2425 else if (s->cert != NULL)
2426 return(s->cert->key->x509);
2431 /* Fix this function so that it takes an optional type parameter */
2432 EVP_PKEY *SSL_get_privatekey(SSL *s)
2434 if (s->cert != NULL)
2435 return(s->cert->key->privatekey);
2440 SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2442 if ((s->session != NULL) && (s->session->cipher != NULL))
2443 return(s->session->cipher);
2446 #ifdef OPENSSL_NO_COMP
2447 const void *SSL_get_current_compression(SSL *s)
2451 const void *SSL_get_current_expansion(SSL *s)
2457 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2459 if (s->compress != NULL)
2460 return(s->compress->meth);
2464 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2466 if (s->expand != NULL)
2467 return(s->expand->meth);
2472 int ssl_init_wbio_buffer(SSL *s,int push)
2476 if (s->bbio == NULL)
2478 bbio=BIO_new(BIO_f_buffer());
2479 if (bbio == NULL) return(0);
2485 if (s->bbio == s->wbio)
2486 s->wbio=BIO_pop(s->wbio);
2488 (void)BIO_reset(bbio);
2489 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2490 if (!BIO_set_read_buffer_size(bbio,1))
2492 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2497 if (s->wbio != bbio)
2498 s->wbio=BIO_push(bbio,s->wbio);
2502 if (s->wbio == bbio)
2503 s->wbio=BIO_pop(bbio);
2508 void ssl_free_wbio_buffer(SSL *s)
2510 if (s->bbio == NULL) return;
2512 if (s->bbio == s->wbio)
2514 /* remove buffering */
2515 s->wbio=BIO_pop(s->wbio);
2516 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2517 assert(s->wbio != NULL);
2524 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2526 ctx->quiet_shutdown=mode;
2529 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2531 return(ctx->quiet_shutdown);
2534 void SSL_set_quiet_shutdown(SSL *s,int mode)
2536 s->quiet_shutdown=mode;
2539 int SSL_get_quiet_shutdown(const SSL *s)
2541 return(s->quiet_shutdown);
2544 void SSL_set_shutdown(SSL *s,int mode)
2549 int SSL_get_shutdown(const SSL *s)
2551 return(s->shutdown);
2554 int SSL_version(const SSL *s)
2559 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2564 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
2566 if (ssl->ctx == ctx)
2568 #ifndef OPENSSL_NO_TLSEXT
2570 ctx = ssl->initial_ctx;
2572 if (ssl->cert != NULL)
2573 ssl_cert_free(ssl->cert);
2574 ssl->cert = ssl_cert_dup(ctx->cert);
2575 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
2576 if (ssl->ctx != NULL)
2577 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2582 #ifndef OPENSSL_NO_STDIO
2583 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2585 return(X509_STORE_set_default_paths(ctx->cert_store));
2588 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2591 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
2595 void SSL_set_info_callback(SSL *ssl,
2596 void (*cb)(const SSL *ssl,int type,int val))
2598 ssl->info_callback=cb;
2601 /* One compiler (Diab DCC) doesn't like argument names in returned
2602 function pointer. */
2603 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
2605 return ssl->info_callback;
2608 int SSL_state(const SSL *ssl)
2613 void SSL_set_verify_result(SSL *ssl,long arg)
2615 ssl->verify_result=arg;
2618 long SSL_get_verify_result(const SSL *ssl)
2620 return(ssl->verify_result);
2623 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2624 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2626 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2627 new_func, dup_func, free_func);
2630 int SSL_set_ex_data(SSL *s,int idx,void *arg)
2632 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2635 void *SSL_get_ex_data(const SSL *s,int idx)
2637 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2640 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2641 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2643 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2644 new_func, dup_func, free_func);
2647 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2649 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2652 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
2654 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2662 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2664 return(ctx->cert_store);
2667 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2669 if (ctx->cert_store != NULL)
2670 X509_STORE_free(ctx->cert_store);
2671 ctx->cert_store=store;
2674 int SSL_want(const SSL *s)
2680 * \brief Set the callback for generating temporary RSA keys.
2681 * \param ctx the SSL context.
2682 * \param cb the callback
2685 #ifndef OPENSSL_NO_RSA
2686 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2690 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2693 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2697 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2703 * \brief The RSA temporary key callback function.
2704 * \param ssl the SSL session.
2705 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2706 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2707 * of the required key in bits.
2708 * \return the temporary RSA key.
2709 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2712 RSA *cb(SSL *ssl,int is_export,int keylength)
2717 * \brief Set the callback for generating temporary DH keys.
2718 * \param ctx the SSL context.
2719 * \param dh the callback
2722 #ifndef OPENSSL_NO_DH
2723 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2726 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2729 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2732 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2736 #ifndef OPENSSL_NO_ECDH
2737 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2740 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2743 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2746 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2751 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))
2753 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2755 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))
2757 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2762 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2763 #include "../crypto/bio/bss_file.c"
2766 IMPLEMENT_STACK_OF(SSL_CIPHER)
2767 IMPLEMENT_STACK_OF(SSL_COMP)