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) 1998-2007 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.
118 /* ====================================================================
119 * Copyright 2005 Nokia. All rights reserved.
121 * The portions of the attached software ("Contribution") is developed by
122 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
125 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
126 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
127 * support (see RFC 4279) to OpenSSL.
129 * No patent licenses or other rights except those expressly stated in
130 * the OpenSSL open source license shall be deemed granted or received
131 * expressly, by implication, estoppel, or otherwise.
133 * No assurances are provided by Nokia that the Contribution does not
134 * infringe the patent or other intellectual property rights of any third
135 * party or that the license provides you with all the necessary rights
136 * to make use of the Contribution.
138 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
139 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
140 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
141 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
149 #include "ssl_locl.h"
150 #include "kssl_lcl.h"
151 #include <openssl/objects.h>
152 #include <openssl/lhash.h>
153 #include <openssl/x509v3.h>
154 #ifndef OPENSSL_NO_DH
155 #include <openssl/dh.h>
158 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
160 SSL3_ENC_METHOD ssl3_undef_enc_method={
161 /* evil casts, but these functions are only called if there's a library bug */
162 (int (*)(SSL *,int))ssl_undefined_function,
163 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
164 ssl_undefined_function,
165 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
166 (int (*)(SSL*, int))ssl_undefined_function,
167 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function,
168 0, /* finish_mac_length */
169 (int (*)(SSL *, EVP_MD_CTX *, unsigned char *))ssl_undefined_function,
170 NULL, /* client_finished_label */
171 0, /* client_finished_label_len */
172 NULL, /* server_finished_label */
173 0, /* server_finished_label_len */
174 (int (*)(int))ssl_undefined_function
177 int SSL_clear(SSL *s)
180 if (s->method == NULL)
182 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
186 if (ssl_clear_bad_session(s))
188 SSL_SESSION_free(s->session);
196 #if 0 /* Disabled since version 1.10 of this file (early return not
197 * needed because SSL_clear is not called when doing renegotiation) */
198 /* This is set if we are doing dynamic renegotiation so keep
199 * the old cipher. It is sort of a SSL_clear_lite :-) */
200 if (s->new_session) return(1);
204 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
211 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
213 s->version=s->method->version;
214 s->client_version=s->version;
215 s->rwstate=SSL_NOTHING;
216 s->rstate=SSL_ST_READ_HEADER;
218 s->read_ahead=s->ctx->read_ahead;
221 if (s->init_buf != NULL)
223 BUF_MEM_free(s->init_buf);
227 ssl_clear_cipher_ctx(s);
228 ssl_clear_hash_ctx(&s->read_hash);
229 ssl_clear_hash_ctx(&s->write_hash);
234 /* Check to see if we were changed into a different method, if
235 * so, revert back if we are not doing session-id reuse. */
236 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
238 s->method->ssl_free(s);
239 s->method=s->ctx->method;
240 if (!s->method->ssl_new(s))
245 s->method->ssl_clear(s);
249 /** Used to change an SSL_CTXs default SSL method type */
250 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,const SSL_METHOD *meth)
252 STACK_OF(SSL_CIPHER) *sk;
256 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
257 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
258 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
260 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
266 SSL *SSL_new(SSL_CTX *ctx)
272 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
275 if (ctx->method == NULL)
277 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
281 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
282 if (s == NULL) goto err;
283 memset(s,0,sizeof(SSL));
285 #ifndef OPENSSL_NO_KRB5
286 s->kssl_ctx = kssl_ctx_new();
287 #endif /* OPENSSL_NO_KRB5 */
289 s->options=ctx->options;
291 s->max_cert_list=ctx->max_cert_list;
293 if (ctx->cert != NULL)
295 /* Earlier library versions used to copy the pointer to
296 * the CERT, not its contents; only when setting new
297 * parameters for the per-SSL copy, ssl_cert_new would be
298 * called (and the direct reference to the per-SSL_CTX
299 * settings would be lost, but those still were indirectly
300 * accessed for various purposes, and for that reason they
301 * used to be known as s->ctx->default_cert).
302 * Now we don't look at the SSL_CTX's CERT after having
303 * duplicated it once. */
305 s->cert = ssl_cert_dup(ctx->cert);
310 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
312 s->read_ahead=ctx->read_ahead;
313 s->msg_callback=ctx->msg_callback;
314 s->msg_callback_arg=ctx->msg_callback_arg;
315 s->verify_mode=ctx->verify_mode;
317 s->verify_depth=ctx->verify_depth;
319 s->sid_ctx_length=ctx->sid_ctx_length;
320 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
321 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
322 s->verify_callback=ctx->default_verify_callback;
323 s->generate_session_id=ctx->generate_session_id;
325 s->param = X509_VERIFY_PARAM_new();
328 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
330 s->purpose = ctx->purpose;
331 s->trust = ctx->trust;
333 s->quiet_shutdown=ctx->quiet_shutdown;
334 s->max_send_fragment = ctx->max_send_fragment;
336 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
338 #ifndef OPENSSL_NO_TLSEXT
339 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
343 s->verify_result=X509_V_OK;
345 s->method=ctx->method;
347 if (!s->method->ssl_new(s))
351 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
355 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
357 #ifndef OPENSSL_NO_PSK
358 s->psk_client_callback=ctx->psk_client_callback;
359 s->psk_server_callback=ctx->psk_server_callback;
367 ssl_cert_free(s->cert);
369 SSL_CTX_free(s->ctx); /* decrement reference count */
372 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
376 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
377 unsigned int sid_ctx_len)
379 if(sid_ctx_len > sizeof ctx->sid_ctx)
381 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
384 ctx->sid_ctx_length=sid_ctx_len;
385 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
390 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
391 unsigned int sid_ctx_len)
393 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
395 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
398 ssl->sid_ctx_length=sid_ctx_len;
399 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
404 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
406 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
407 ctx->generate_session_id = cb;
408 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
412 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
414 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
415 ssl->generate_session_id = cb;
416 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
420 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
423 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
424 * we can "construct" a session to give us the desired check - ie. to
425 * find if there's a session in the hash table that would conflict with
426 * any new session built out of this id/id_len and the ssl_version in
427 * use by this SSL. */
430 if(id_len > sizeof r.session_id)
433 r.ssl_version = ssl->version;
434 r.session_id_length = id_len;
435 memcpy(r.session_id, id, id_len);
436 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
437 * callback is calling us to check the uniqueness of a shorter ID, it
438 * must be compared as a padded-out ID because that is what it will be
439 * converted to when the callback has finished choosing it. */
440 if((r.ssl_version == SSL2_VERSION) &&
441 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
443 memset(r.session_id + id_len, 0,
444 SSL2_SSL_SESSION_ID_LENGTH - id_len);
445 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
448 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
449 p = (SSL_SESSION *)lh_retrieve(ssl->ctx->sessions, &r);
450 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
454 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
456 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
459 int SSL_set_purpose(SSL *s, int purpose)
461 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
464 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
466 return X509_VERIFY_PARAM_set_trust(s->param, trust);
469 int SSL_set_trust(SSL *s, int trust)
471 return X509_VERIFY_PARAM_set_trust(s->param, trust);
474 void SSL_free(SSL *s)
481 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
489 fprintf(stderr,"SSL_free, bad reference count\n");
495 X509_VERIFY_PARAM_free(s->param);
497 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
501 /* If the buffering BIO is in place, pop it off */
502 if (s->bbio == s->wbio)
504 s->wbio=BIO_pop(s->wbio);
510 BIO_free_all(s->rbio);
511 if ((s->wbio != NULL) && (s->wbio != s->rbio))
512 BIO_free_all(s->wbio);
514 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
516 /* add extra stuff */
517 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
518 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
520 /* Make the next call work :-) */
521 if (s->session != NULL)
523 ssl_clear_bad_session(s);
524 SSL_SESSION_free(s->session);
527 ssl_clear_cipher_ctx(s);
528 ssl_clear_hash_ctx(&s->read_hash);
529 ssl_clear_hash_ctx(&s->write_hash);
531 if (s->cert != NULL) ssl_cert_free(s->cert);
532 /* Free up if allocated */
534 if (s->ctx) SSL_CTX_free(s->ctx);
535 #ifndef OPENSSL_NO_TLSEXT
536 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx);
537 #ifndef OPENSSL_NO_EC
538 if (s->tlsext_ecpointformatlist) OPENSSL_free(s->tlsext_ecpointformatlist);
539 if (s->tlsext_ellipticcurvelist) OPENSSL_free(s->tlsext_ellipticcurvelist);
540 #endif /* OPENSSL_NO_EC */
543 if (s->client_CA != NULL)
544 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
546 if (s->method != NULL) s->method->ssl_free(s);
548 #ifndef OPENSSL_NO_KRB5
549 if (s->kssl_ctx != NULL)
550 kssl_ctx_free(s->kssl_ctx);
551 #endif /* OPENSSL_NO_KRB5 */
556 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
558 /* If the output buffering BIO is still in place, remove it
562 if (s->wbio == s->bbio)
564 s->wbio=s->wbio->next_bio;
565 s->bbio->next_bio=NULL;
568 if ((s->rbio != NULL) && (s->rbio != rbio))
569 BIO_free_all(s->rbio);
570 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
571 BIO_free_all(s->wbio);
576 BIO *SSL_get_rbio(const SSL *s)
579 BIO *SSL_get_wbio(const SSL *s)
582 int SSL_get_fd(const SSL *s)
584 return(SSL_get_rfd(s));
587 int SSL_get_rfd(const SSL *s)
593 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
599 int SSL_get_wfd(const SSL *s)
605 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
611 #ifndef OPENSSL_NO_SOCK
612 int SSL_set_fd(SSL *s,int fd)
617 bio=BIO_new(BIO_s_socket());
621 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
624 BIO_set_fd(bio,fd,BIO_NOCLOSE);
625 SSL_set_bio(s,bio,bio);
631 int SSL_set_wfd(SSL *s,int fd)
636 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
637 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
639 bio=BIO_new(BIO_s_socket());
642 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
643 BIO_set_fd(bio,fd,BIO_NOCLOSE);
644 SSL_set_bio(s,SSL_get_rbio(s),bio);
647 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
653 int SSL_set_rfd(SSL *s,int fd)
658 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
659 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
661 bio=BIO_new(BIO_s_socket());
665 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
668 BIO_set_fd(bio,fd,BIO_NOCLOSE);
669 SSL_set_bio(s,bio,SSL_get_wbio(s));
672 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
680 /* return length of latest Finished message we sent, copy to 'buf' */
681 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
687 ret = s->s3->tmp.finish_md_len;
690 memcpy(buf, s->s3->tmp.finish_md, count);
695 /* return length of latest Finished message we expected, copy to 'buf' */
696 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
702 ret = s->s3->tmp.peer_finish_md_len;
705 memcpy(buf, s->s3->tmp.peer_finish_md, count);
711 int SSL_get_verify_mode(const SSL *s)
713 return(s->verify_mode);
716 int SSL_get_verify_depth(const SSL *s)
718 return X509_VERIFY_PARAM_get_depth(s->param);
721 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
723 return(s->verify_callback);
726 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
728 return(ctx->verify_mode);
731 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
733 return X509_VERIFY_PARAM_get_depth(ctx->param);
736 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
738 return(ctx->default_verify_callback);
741 void SSL_set_verify(SSL *s,int mode,
742 int (*callback)(int ok,X509_STORE_CTX *ctx))
745 if (callback != NULL)
746 s->verify_callback=callback;
749 void SSL_set_verify_depth(SSL *s,int depth)
751 X509_VERIFY_PARAM_set_depth(s->param, depth);
754 void SSL_set_read_ahead(SSL *s,int yes)
759 int SSL_get_read_ahead(const SSL *s)
761 return(s->read_ahead);
764 int SSL_pending(const SSL *s)
766 /* SSL_pending cannot work properly if read-ahead is enabled
767 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
768 * and it is impossible to fix since SSL_pending cannot report
769 * errors that may be observed while scanning the new data.
770 * (Note that SSL_pending() is often used as a boolean value,
771 * so we'd better not return -1.)
773 return(s->method->ssl_pending(s));
776 X509 *SSL_get_peer_certificate(const SSL *s)
780 if ((s == NULL) || (s->session == NULL))
785 if (r == NULL) return(r);
787 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
792 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
796 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
799 r=s->session->sess_cert->cert_chain;
801 /* If we are a client, cert_chain includes the peer's own
802 * certificate; if we are a server, it does not. */
807 /* Now in theory, since the calling process own 't' it should be safe to
808 * modify. We need to be able to read f without being hassled */
809 void SSL_copy_session_id(SSL *t,const SSL *f)
813 /* Do we need to to SSL locking? */
814 SSL_set_session(t,SSL_get_session(f));
816 /* what if we are setup as SSLv2 but want to talk SSLv3 or
818 if (t->method != f->method)
820 t->method->ssl_free(t); /* cleanup current */
821 t->method=f->method; /* change method */
822 t->method->ssl_new(t); /* setup new */
828 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
833 if (tmp != NULL) ssl_cert_free(tmp);
834 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
837 /* Fix this so it checks all the valid key/cert options */
838 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
840 if ( (ctx == NULL) ||
841 (ctx->cert == NULL) ||
842 (ctx->cert->key->x509 == NULL))
844 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
847 if (ctx->cert->key->privatekey == NULL)
849 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
852 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
855 /* Fix this function so that it takes an optional type parameter */
856 int SSL_check_private_key(const SSL *ssl)
860 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
863 if (ssl->cert == NULL)
865 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
868 if (ssl->cert->key->x509 == NULL)
870 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
873 if (ssl->cert->key->privatekey == NULL)
875 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
878 return(X509_check_private_key(ssl->cert->key->x509,
879 ssl->cert->key->privatekey));
882 int SSL_accept(SSL *s)
884 if (s->handshake_func == 0)
885 /* Not properly initialized yet */
886 SSL_set_accept_state(s);
888 return(s->method->ssl_accept(s));
891 int SSL_connect(SSL *s)
893 if (s->handshake_func == 0)
894 /* Not properly initialized yet */
895 SSL_set_connect_state(s);
897 return(s->method->ssl_connect(s));
900 long SSL_get_default_timeout(const SSL *s)
902 return(s->method->get_timeout());
905 int SSL_read(SSL *s,void *buf,int num)
907 if (s->handshake_func == 0)
909 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
913 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
915 s->rwstate=SSL_NOTHING;
918 return(s->method->ssl_read(s,buf,num));
921 int SSL_peek(SSL *s,void *buf,int num)
923 if (s->handshake_func == 0)
925 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
929 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
933 return(s->method->ssl_peek(s,buf,num));
936 int SSL_write(SSL *s,const void *buf,int num)
938 if (s->handshake_func == 0)
940 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
944 if (s->shutdown & SSL_SENT_SHUTDOWN)
946 s->rwstate=SSL_NOTHING;
947 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
950 return(s->method->ssl_write(s,buf,num));
953 int SSL_shutdown(SSL *s)
955 /* Note that this function behaves differently from what one might
956 * expect. Return values are 0 for no success (yet),
957 * 1 for success; but calling it once is usually not enough,
958 * even if blocking I/O is used (see ssl3_shutdown).
961 if (s->handshake_func == 0)
963 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
967 if ((s != NULL) && !SSL_in_init(s))
968 return(s->method->ssl_shutdown(s));
973 int SSL_renegotiate(SSL *s)
975 if (s->new_session == 0)
979 return(s->method->ssl_renegotiate(s));
982 int SSL_renegotiate_pending(SSL *s)
984 /* becomes true when negotiation is requested;
985 * false again once a handshake has finished */
986 return (s->new_session != 0);
989 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
995 case SSL_CTRL_GET_READ_AHEAD:
996 return(s->read_ahead);
997 case SSL_CTRL_SET_READ_AHEAD:
1002 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1003 s->msg_callback_arg = parg;
1006 case SSL_CTRL_OPTIONS:
1007 return(s->options|=larg);
1009 return(s->mode|=larg);
1010 case SSL_CTRL_GET_MAX_CERT_LIST:
1011 return(s->max_cert_list);
1012 case SSL_CTRL_SET_MAX_CERT_LIST:
1014 s->max_cert_list=larg;
1016 case SSL_CTRL_SET_MTU:
1017 if (SSL_version(s) == DTLS1_VERSION)
1023 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1024 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1026 s->max_send_fragment = larg;
1029 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1033 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1037 case SSL_CTRL_SET_MSG_CALLBACK:
1038 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1042 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1046 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
1048 return ctx->sessions;
1051 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1057 case SSL_CTRL_GET_READ_AHEAD:
1058 return(ctx->read_ahead);
1059 case SSL_CTRL_SET_READ_AHEAD:
1061 ctx->read_ahead=larg;
1064 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1065 ctx->msg_callback_arg = parg;
1068 case SSL_CTRL_GET_MAX_CERT_LIST:
1069 return(ctx->max_cert_list);
1070 case SSL_CTRL_SET_MAX_CERT_LIST:
1071 l=ctx->max_cert_list;
1072 ctx->max_cert_list=larg;
1075 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1076 l=ctx->session_cache_size;
1077 ctx->session_cache_size=larg;
1079 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1080 return(ctx->session_cache_size);
1081 case SSL_CTRL_SET_SESS_CACHE_MODE:
1082 l=ctx->session_cache_mode;
1083 ctx->session_cache_mode=larg;
1085 case SSL_CTRL_GET_SESS_CACHE_MODE:
1086 return(ctx->session_cache_mode);
1088 case SSL_CTRL_SESS_NUMBER:
1089 return(ctx->sessions->num_items);
1090 case SSL_CTRL_SESS_CONNECT:
1091 return(ctx->stats.sess_connect);
1092 case SSL_CTRL_SESS_CONNECT_GOOD:
1093 return(ctx->stats.sess_connect_good);
1094 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1095 return(ctx->stats.sess_connect_renegotiate);
1096 case SSL_CTRL_SESS_ACCEPT:
1097 return(ctx->stats.sess_accept);
1098 case SSL_CTRL_SESS_ACCEPT_GOOD:
1099 return(ctx->stats.sess_accept_good);
1100 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1101 return(ctx->stats.sess_accept_renegotiate);
1102 case SSL_CTRL_SESS_HIT:
1103 return(ctx->stats.sess_hit);
1104 case SSL_CTRL_SESS_CB_HIT:
1105 return(ctx->stats.sess_cb_hit);
1106 case SSL_CTRL_SESS_MISSES:
1107 return(ctx->stats.sess_miss);
1108 case SSL_CTRL_SESS_TIMEOUTS:
1109 return(ctx->stats.sess_timeout);
1110 case SSL_CTRL_SESS_CACHE_FULL:
1111 return(ctx->stats.sess_cache_full);
1112 case SSL_CTRL_OPTIONS:
1113 return(ctx->options|=larg);
1115 return(ctx->mode|=larg);
1116 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1117 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1119 ctx->max_send_fragment = larg;
1122 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1126 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1130 case SSL_CTRL_SET_MSG_CALLBACK:
1131 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1135 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1139 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1147 return((l > 0)?1:-1);
1150 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1151 const SSL_CIPHER * const *bp)
1155 l=(*ap)->id-(*bp)->id;
1159 return((l > 0)?1:-1);
1162 /** return a STACK of the ciphers available for the SSL and in order of
1164 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1168 if (s->cipher_list != NULL)
1170 return(s->cipher_list);
1172 else if ((s->ctx != NULL) &&
1173 (s->ctx->cipher_list != NULL))
1175 return(s->ctx->cipher_list);
1181 /** return a STACK of the ciphers available for the SSL and in order of
1183 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1187 if (s->cipher_list_by_id != NULL)
1189 return(s->cipher_list_by_id);
1191 else if ((s->ctx != NULL) &&
1192 (s->ctx->cipher_list_by_id != NULL))
1194 return(s->ctx->cipher_list_by_id);
1200 /** The old interface to get the same thing as SSL_get_ciphers() */
1201 const char *SSL_get_cipher_list(const SSL *s,int n)
1204 STACK_OF(SSL_CIPHER) *sk;
1206 if (s == NULL) return(NULL);
1207 sk=SSL_get_ciphers(s);
1208 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1210 c=sk_SSL_CIPHER_value(sk,n);
1211 if (c == NULL) return(NULL);
1215 /** specify the ciphers to be used by default by the SSL_CTX */
1216 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1218 STACK_OF(SSL_CIPHER) *sk;
1220 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1221 &ctx->cipher_list_by_id,str);
1222 /* ssl_create_cipher_list may return an empty stack if it
1223 * was unable to find a cipher matching the given rule string
1224 * (for example if the rule string specifies a cipher which
1225 * has been disabled). This is not an error as far as
1226 * ssl_create_cipher_list is concerned, and hence
1227 * ctx->cipher_list and ctx->cipher_list_by_id has been
1231 else if (sk_SSL_CIPHER_num(sk) == 0)
1233 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1239 /** specify the ciphers to be used by the SSL */
1240 int SSL_set_cipher_list(SSL *s,const char *str)
1242 STACK_OF(SSL_CIPHER) *sk;
1244 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1245 &s->cipher_list_by_id,str);
1246 /* see comment in SSL_CTX_set_cipher_list */
1249 else if (sk_SSL_CIPHER_num(sk) == 0)
1251 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1257 /* works well for SSLv2, not so good for SSLv3 */
1258 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1262 STACK_OF(SSL_CIPHER) *sk;
1266 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1271 sk=s->session->ciphers;
1272 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1274 /* Decrement for either the ':' or a '\0' */
1276 c=sk_SSL_CIPHER_value(sk,i);
1277 for (cp=c->name; *cp; )
1293 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1294 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1299 #ifndef OPENSSL_NO_KRB5
1300 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1301 #endif /* OPENSSL_NO_KRB5 */
1303 if (sk == NULL) return(0);
1306 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1308 c=sk_SSL_CIPHER_value(sk,i);
1309 #ifndef OPENSSL_NO_KRB5
1310 if (((c->algorithm_mkey & SSL_kKRB5) || (c->algorithm_auth & SSL_aKRB5)) &&
1313 #endif /* OPENSSL_NO_KRB5 */
1314 #ifndef OPENSSL_NO_PSK
1315 /* with PSK there must be client callback set */
1316 if (((c->algorithm_mkey & SSL_kPSK) || (c->algorithm_auth & SSL_aPSK)) &&
1317 s->psk_client_callback == NULL)
1319 #endif /* OPENSSL_NO_PSK */
1320 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
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 n=ssl_put_cipher_by_char(s,NULL,NULL);
1336 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1339 if ((skp == NULL) || (*skp == NULL))
1340 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1344 sk_SSL_CIPHER_zero(sk);
1347 for (i=0; i<num; i+=n)
1349 c=ssl_get_cipher_by_char(s,p);
1353 if (!sk_SSL_CIPHER_push(sk,c))
1355 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1365 if ((skp == NULL) || (*skp == NULL))
1366 sk_SSL_CIPHER_free(sk);
1371 #ifndef OPENSSL_TLSEXT
1372 /** return a servername extension value if provided in Client Hello, or NULL.
1373 * So far, only host_name types are defined (RFC 3546).
1376 const char *SSL_get_servername(const SSL *s, const int type)
1378 if (type != TLSEXT_NAMETYPE_host_name)
1381 return s->session && !s->tlsext_hostname ?
1382 s->session->tlsext_hostname :
1386 int SSL_get_servername_type(const SSL *s)
1388 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1389 return TLSEXT_NAMETYPE_host_name;
1394 unsigned long SSL_SESSION_hash(const SSL_SESSION *a)
1399 ((unsigned int) a->session_id[0] )|
1400 ((unsigned int) a->session_id[1]<< 8L)|
1401 ((unsigned long)a->session_id[2]<<16L)|
1402 ((unsigned long)a->session_id[3]<<24L);
1406 /* NB: If this function (or indeed the hash function which uses a sort of
1407 * coarser function than this one) is changed, ensure
1408 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1409 * able to construct an SSL_SESSION that will collide with any existing session
1410 * with a matching session ID. */
1411 int SSL_SESSION_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1413 if (a->ssl_version != b->ssl_version)
1415 if (a->session_id_length != b->session_id_length)
1417 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1420 /* These wrapper functions should remain rather than redeclaring
1421 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1422 * variable. The reason is that the functions aren't static, they're exposed via
1424 static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *)
1425 static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *)
1427 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1433 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1437 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1439 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1442 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1446 memset(ret,0,sizeof(SSL_CTX));
1450 ret->cert_store=NULL;
1451 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1452 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1453 ret->session_cache_head=NULL;
1454 ret->session_cache_tail=NULL;
1456 /* We take the system default */
1457 ret->session_timeout=meth->get_timeout();
1459 ret->new_session_cb=0;
1460 ret->remove_session_cb=0;
1461 ret->get_session_cb=0;
1462 ret->generate_session_id=0;
1464 memset((char *)&ret->stats,0,sizeof(ret->stats));
1467 ret->quiet_shutdown=0;
1469 /* ret->cipher=NULL;*/
1470 /* ret->s2->challenge=NULL;
1471 ret->master_key=NULL;
1473 ret->s2->conn_id=NULL; */
1475 ret->info_callback=NULL;
1477 ret->app_verify_callback=0;
1478 ret->app_verify_arg=NULL;
1480 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1482 ret->msg_callback=0;
1483 ret->msg_callback_arg=NULL;
1484 ret->verify_mode=SSL_VERIFY_NONE;
1486 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1488 ret->sid_ctx_length=0;
1489 ret->default_verify_callback=NULL;
1490 if ((ret->cert=ssl_cert_new()) == NULL)
1493 ret->default_passwd_callback=0;
1494 ret->default_passwd_callback_userdata=NULL;
1495 ret->client_cert_cb=0;
1496 ret->app_gen_cookie_cb=0;
1497 ret->app_verify_cookie_cb=0;
1499 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash),
1500 LHASH_COMP_FN(SSL_SESSION_cmp));
1501 if (ret->sessions == NULL) goto err;
1502 ret->cert_store=X509_STORE_new();
1503 if (ret->cert_store == NULL) goto err;
1505 ssl_create_cipher_list(ret->method,
1506 &ret->cipher_list,&ret->cipher_list_by_id,
1507 SSL_DEFAULT_CIPHER_LIST);
1508 if (ret->cipher_list == NULL
1509 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1511 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1515 ret->param = X509_VERIFY_PARAM_new();
1519 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1521 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1524 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1526 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1529 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1531 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1535 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1538 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1540 ret->extra_certs=NULL;
1541 ret->comp_methods=SSL_COMP_get_compression_methods();
1543 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1545 #ifndef OPENSSL_NO_TLSEXT
1546 ret->tlsext_servername_callback = 0;
1547 ret->tlsext_servername_arg = NULL;
1549 #ifndef OPENSSL_NO_PSK
1550 ret->psk_identity_hint=NULL;
1551 ret->psk_client_callback=NULL;
1552 ret->psk_server_callback=NULL;
1556 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1558 if (ret != NULL) SSL_CTX_free(ret);
1563 static void SSL_COMP_free(SSL_COMP *comp)
1564 { OPENSSL_free(comp); }
1567 void SSL_CTX_free(SSL_CTX *a)
1571 if (a == NULL) return;
1573 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1575 REF_PRINT("SSL_CTX",a);
1581 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1587 X509_VERIFY_PARAM_free(a->param);
1590 * Free internal session cache. However: the remove_cb() may reference
1591 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1592 * after the sessions were flushed.
1593 * As the ex_data handling routines might also touch the session cache,
1594 * the most secure solution seems to be: empty (flush) the cache, then
1595 * free ex_data, then finally free the cache.
1596 * (See ticket [openssl.org #212].)
1598 if (a->sessions != NULL)
1599 SSL_CTX_flush_sessions(a,0);
1601 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1603 if (a->sessions != NULL)
1604 lh_free(a->sessions);
1606 if (a->cert_store != NULL)
1607 X509_STORE_free(a->cert_store);
1608 if (a->cipher_list != NULL)
1609 sk_SSL_CIPHER_free(a->cipher_list);
1610 if (a->cipher_list_by_id != NULL)
1611 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1612 if (a->cert != NULL)
1613 ssl_cert_free(a->cert);
1614 if (a->client_CA != NULL)
1615 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1616 if (a->extra_certs != NULL)
1617 sk_X509_pop_free(a->extra_certs,X509_free);
1618 #if 0 /* This should never be done, since it removes a global database */
1619 if (a->comp_methods != NULL)
1620 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1622 a->comp_methods = NULL;
1625 #ifndef OPENSSL_NO_PSK
1626 if (a->psk_identity_hint)
1627 OPENSSL_free(a->psk_identity_hint);
1632 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1634 ctx->default_passwd_callback=cb;
1637 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1639 ctx->default_passwd_callback_userdata=u;
1642 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1644 ctx->app_verify_callback=cb;
1645 ctx->app_verify_arg=arg;
1648 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1650 ctx->verify_mode=mode;
1651 ctx->default_verify_callback=cb;
1654 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1656 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
1659 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1662 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1663 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1664 int rsa_tmp_export,dh_tmp_export,kl;
1665 unsigned long mask_k,mask_a,emask_k,emask_a;
1666 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size;
1667 #ifndef OPENSSL_NO_ECDH
1671 EVP_PKEY *ecc_pkey = NULL;
1672 int signature_nid = 0;
1674 if (c == NULL) return;
1676 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1678 #ifndef OPENSSL_NO_RSA
1679 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1680 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1681 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1683 rsa_tmp=rsa_tmp_export=0;
1685 #ifndef OPENSSL_NO_DH
1686 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1687 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1688 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1690 dh_tmp=dh_tmp_export=0;
1693 #ifndef OPENSSL_NO_ECDH
1694 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL);
1696 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1697 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1698 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1699 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1700 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1701 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1702 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1703 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1704 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1705 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1706 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1707 /* FIX THIS EAY EAY EAY */
1708 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1709 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1710 cpk= &(c->pkeys[SSL_PKEY_ECC]);
1711 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL);
1718 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1719 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
1720 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1723 if (rsa_enc || (rsa_tmp && rsa_sign))
1725 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1729 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1730 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1731 (rsa_enc || rsa_sign || dsa_sign))
1733 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1734 (rsa_enc || rsa_sign || dsa_sign))
1744 if (dh_rsa) mask_k|=SSL_kDHr;
1745 if (dh_rsa_export) emask_k|=SSL_kDHr;
1747 if (dh_dsa) mask_k|=SSL_kDHd;
1748 if (dh_dsa_export) emask_k|=SSL_kDHd;
1750 if (rsa_enc || rsa_sign)
1765 #ifndef OPENSSL_NO_KRB5
1772 /* An ECC certificate may be usable for ECDH and/or
1773 * ECDSA cipher suites depending on the key usage extension.
1777 /* This call populates extension flags (ex_flags) */
1778 x = (c->pkeys[SSL_PKEY_ECC]).x509;
1779 X509_check_purpose(x, -1, 0);
1780 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1781 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
1782 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1783 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
1784 ecc_pkey = X509_get_pubkey(x);
1785 ecc_pkey_size = (ecc_pkey != NULL) ?
1786 EVP_PKEY_bits(ecc_pkey) : 0;
1787 EVP_PKEY_free(ecc_pkey);
1788 if ((x->sig_alg) && (x->sig_alg->algorithm))
1789 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1790 #ifndef OPENSSL_NO_ECDH
1793 const char *sig = OBJ_nid2ln(signature_nid);
1800 if (strstr(sig, "WithRSA"))
1804 if (ecc_pkey_size <= 163)
1806 emask_k|=SSL_kECDHr;
1811 if (signature_nid == NID_ecdsa_with_SHA1)
1815 if (ecc_pkey_size <= 163)
1817 emask_k|=SSL_kECDHe;
1823 #ifndef OPENSSL_NO_ECDSA
1827 emask_a|=SSL_aECDSA;
1832 #ifndef OPENSSL_NO_ECDH
1836 emask_k|=SSL_kEECDH;
1840 #ifndef OPENSSL_NO_PSK
1843 emask_k |= SSL_kPSK;
1844 emask_a |= SSL_aPSK;
1849 c->export_mask_k=emask_k;
1850 c->export_mask_a=emask_a;
1854 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
1855 #define ku_reject(x, usage) \
1856 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
1858 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs)
1860 unsigned long alg_k, alg_a;
1861 EVP_PKEY *pkey = NULL;
1863 int signature_nid = 0;
1865 alg_k = cs->algorithm_mkey;
1866 alg_a = cs->algorithm_auth;
1868 if (SSL_C_IS_EXPORT(cs))
1870 /* ECDH key length in export ciphers must be <= 163 bits */
1871 pkey = X509_get_pubkey(x);
1872 if (pkey == NULL) return 0;
1873 keysize = EVP_PKEY_bits(pkey);
1874 EVP_PKEY_free(pkey);
1875 if (keysize > 163) return 0;
1878 /* This call populates the ex_flags field correctly */
1879 X509_check_purpose(x, -1, 0);
1880 if ((x->sig_alg) && (x->sig_alg->algorithm))
1881 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1882 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
1884 /* key usage, if present, must allow key agreement */
1885 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
1887 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
1890 if (alg_k & SSL_kECDHe)
1892 /* signature alg must be ECDSA */
1893 if (signature_nid != NID_ecdsa_with_SHA1)
1895 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
1899 if (alg_k & SSL_kECDHr)
1901 /* signature alg must be RSA */
1903 const char *sig = OBJ_nid2ln(signature_nid);
1909 if (strstr(sig, "WithRSA") == NULL)
1911 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
1916 if (alg_a & SSL_aECDSA)
1918 /* key usage, if present, must allow signing */
1919 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
1921 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
1926 return 1; /* all checks are ok */
1929 /* THIS NEEDS CLEANING UP */
1930 X509 *ssl_get_server_send_cert(SSL *s)
1932 unsigned long alg_k,alg_a,mask_k,mask_a;
1937 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1938 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1941 mask_k = c->export_mask_k;
1942 mask_a = c->export_mask_a;
1950 alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
1951 alg_a = s->s3->tmp.new_cipher->algorithm_auth;
1953 if (alg_k & (SSL_kECDHr|SSL_kECDHe))
1955 /* we don't need to look at SSL_kEECDH
1956 * since no certificate is needed for
1957 * anon ECDH and for authenticated
1958 * EECDH, the check for the auth
1959 * algorithm will set i correctly
1960 * NOTE: For ECDH-RSA, we need an ECC
1961 * not an RSA cert but for EECDH-RSA
1962 * we need an RSA cert. Placing the
1963 * checks for SSL_kECDH before RSA
1964 * checks ensures the correct cert is chosen.
1968 else if (alg_a & SSL_aECDSA)
1972 else if (alg_k & SSL_kDHr)
1974 else if (alg_k & SSL_kDHd)
1976 else if (alg_a & SSL_aDSS)
1977 i=SSL_PKEY_DSA_SIGN;
1978 else if (alg_a & SSL_aRSA)
1980 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1981 i=SSL_PKEY_RSA_SIGN;
1985 else if (alg_a & SSL_aKRB5)
1987 /* VRS something else here? */
1990 else /* if (alg_a & SSL_aNULL) */
1992 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
1995 if (c->pkeys[i].x509 == NULL) return(NULL);
1997 return(c->pkeys[i].x509);
2000 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
2002 unsigned long alg_a;
2005 alg_a = cipher->algorithm_auth;
2008 if ((alg_a & SSL_aDSS) &&
2009 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2010 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
2011 else if (alg_a & SSL_aRSA)
2013 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2014 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
2015 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2016 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
2020 else if ((alg_a & SSL_aECDSA) &&
2021 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2022 return(c->pkeys[SSL_PKEY_ECC].privatekey);
2023 else /* if (alg_a & SSL_aNULL) */
2025 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2030 void ssl_update_cache(SSL *s,int mode)
2034 /* If the session_id_length is 0, we are not supposed to cache it,
2035 * and it would be rather hard to do anyway :-) */
2036 if (s->session->session_id_length == 0) return;
2038 i=s->session_ctx->session_cache_mode;
2039 if ((i & mode) && (!s->hit)
2040 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2041 || SSL_CTX_add_session(s->session_ctx,s->session))
2042 && (s->session_ctx->new_session_cb != NULL))
2044 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
2045 if (!s->session_ctx->new_session_cb(s,s->session))
2046 SSL_SESSION_free(s->session);
2049 /* auto flush every 255 connections */
2050 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2051 ((i & mode) == mode))
2053 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2054 ?s->session_ctx->stats.sess_connect_good
2055 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2057 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2062 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2067 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2072 if (s->method != meth)
2074 if (s->handshake_func != NULL)
2075 conn=(s->handshake_func == s->method->ssl_connect);
2077 if (s->method->version == meth->version)
2081 s->method->ssl_free(s);
2083 ret=s->method->ssl_new(s);
2087 s->handshake_func=meth->ssl_connect;
2089 s->handshake_func=meth->ssl_accept;
2094 int SSL_get_error(const SSL *s,int i)
2100 if (i > 0) return(SSL_ERROR_NONE);
2102 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2103 * etc, where we do encode the error */
2104 if ((l=ERR_peek_error()) != 0)
2106 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2107 return(SSL_ERROR_SYSCALL);
2109 return(SSL_ERROR_SSL);
2112 if ((i < 0) && SSL_want_read(s))
2114 bio=SSL_get_rbio(s);
2115 if (BIO_should_read(bio))
2116 return(SSL_ERROR_WANT_READ);
2117 else if (BIO_should_write(bio))
2118 /* This one doesn't make too much sense ... We never try
2119 * to write to the rbio, and an application program where
2120 * rbio and wbio are separate couldn't even know what it
2122 * However if we ever set s->rwstate incorrectly
2123 * (so that we have SSL_want_read(s) instead of
2124 * SSL_want_write(s)) and rbio and wbio *are* the same,
2125 * this test works around that bug; so it might be safer
2127 return(SSL_ERROR_WANT_WRITE);
2128 else if (BIO_should_io_special(bio))
2130 reason=BIO_get_retry_reason(bio);
2131 if (reason == BIO_RR_CONNECT)
2132 return(SSL_ERROR_WANT_CONNECT);
2133 else if (reason == BIO_RR_ACCEPT)
2134 return(SSL_ERROR_WANT_ACCEPT);
2136 return(SSL_ERROR_SYSCALL); /* unknown */
2140 if ((i < 0) && SSL_want_write(s))
2142 bio=SSL_get_wbio(s);
2143 if (BIO_should_write(bio))
2144 return(SSL_ERROR_WANT_WRITE);
2145 else if (BIO_should_read(bio))
2146 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2147 return(SSL_ERROR_WANT_READ);
2148 else if (BIO_should_io_special(bio))
2150 reason=BIO_get_retry_reason(bio);
2151 if (reason == BIO_RR_CONNECT)
2152 return(SSL_ERROR_WANT_CONNECT);
2153 else if (reason == BIO_RR_ACCEPT)
2154 return(SSL_ERROR_WANT_ACCEPT);
2156 return(SSL_ERROR_SYSCALL);
2159 if ((i < 0) && SSL_want_x509_lookup(s))
2161 return(SSL_ERROR_WANT_X509_LOOKUP);
2166 if (s->version == SSL2_VERSION)
2168 /* assume it is the socket being closed */
2169 return(SSL_ERROR_ZERO_RETURN);
2173 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2174 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2175 return(SSL_ERROR_ZERO_RETURN);
2178 return(SSL_ERROR_SYSCALL);
2181 int SSL_do_handshake(SSL *s)
2185 if (s->handshake_func == NULL)
2187 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2191 s->method->ssl_renegotiate_check(s);
2193 if (SSL_in_init(s) || SSL_in_before(s))
2195 ret=s->handshake_func(s);
2200 /* For the next 2 functions, SSL_clear() sets shutdown and so
2201 * one of these calls will reset it */
2202 void SSL_set_accept_state(SSL *s)
2206 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2207 s->handshake_func=s->method->ssl_accept;
2208 /* clear the current cipher */
2209 ssl_clear_cipher_ctx(s);
2210 ssl_clear_hash_ctx(&s->read_hash);
2211 ssl_clear_hash_ctx(&s->write_hash);
2214 void SSL_set_connect_state(SSL *s)
2218 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2219 s->handshake_func=s->method->ssl_connect;
2220 /* clear the current cipher */
2221 ssl_clear_cipher_ctx(s);
2222 ssl_clear_hash_ctx(&s->read_hash);
2223 ssl_clear_hash_ctx(&s->write_hash);
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)
2423 if (s->cert != NULL)
2424 return(s->cert->key->x509);
2429 /* Fix this function so that it takes an optional type parameter */
2430 EVP_PKEY *SSL_get_privatekey(SSL *s)
2432 if (s->cert != NULL)
2433 return(s->cert->key->privatekey);
2438 SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2440 if ((s->session != NULL) && (s->session->cipher != NULL))
2441 return(s->session->cipher);
2444 #ifdef OPENSSL_NO_COMP
2445 const void *SSL_get_current_compression(SSL *s)
2449 const void *SSL_get_current_expansion(SSL *s)
2455 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2457 if (s->compress != NULL)
2458 return(s->compress->meth);
2462 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2464 if (s->expand != NULL)
2465 return(s->expand->meth);
2470 int ssl_init_wbio_buffer(SSL *s,int push)
2474 if (s->bbio == NULL)
2476 bbio=BIO_new(BIO_f_buffer());
2477 if (bbio == NULL) return(0);
2483 if (s->bbio == s->wbio)
2484 s->wbio=BIO_pop(s->wbio);
2486 (void)BIO_reset(bbio);
2487 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2488 if (!BIO_set_read_buffer_size(bbio,1))
2490 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2495 if (s->wbio != bbio)
2496 s->wbio=BIO_push(bbio,s->wbio);
2500 if (s->wbio == bbio)
2501 s->wbio=BIO_pop(bbio);
2506 void ssl_free_wbio_buffer(SSL *s)
2508 if (s->bbio == NULL) return;
2510 if (s->bbio == s->wbio)
2512 /* remove buffering */
2513 s->wbio=BIO_pop(s->wbio);
2514 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2515 assert(s->wbio != NULL);
2522 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2524 ctx->quiet_shutdown=mode;
2527 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2529 return(ctx->quiet_shutdown);
2532 void SSL_set_quiet_shutdown(SSL *s,int mode)
2534 s->quiet_shutdown=mode;
2537 int SSL_get_quiet_shutdown(const SSL *s)
2539 return(s->quiet_shutdown);
2542 void SSL_set_shutdown(SSL *s,int mode)
2547 int SSL_get_shutdown(const SSL *s)
2549 return(s->shutdown);
2552 int SSL_version(const SSL *s)
2557 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2562 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
2564 if (ssl->ctx == ctx)
2567 ctx = ssl->initial_ctx;
2568 if (ssl->cert != NULL)
2569 ssl_cert_free(ssl->cert);
2570 ssl->cert = ssl_cert_dup(ctx->cert);
2571 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
2572 if (ssl->ctx != NULL)
2573 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2578 #ifndef OPENSSL_NO_STDIO
2579 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2581 return(X509_STORE_set_default_paths(ctx->cert_store));
2584 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2587 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
2591 void SSL_set_info_callback(SSL *ssl,
2592 void (*cb)(const SSL *ssl,int type,int val))
2594 ssl->info_callback=cb;
2597 /* One compiler (Diab DCC) doesn't like argument names in returned
2598 function pointer. */
2599 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
2601 return ssl->info_callback;
2604 int SSL_state(const SSL *ssl)
2609 void SSL_set_verify_result(SSL *ssl,long arg)
2611 ssl->verify_result=arg;
2614 long SSL_get_verify_result(const SSL *ssl)
2616 return(ssl->verify_result);
2619 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2620 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2622 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2623 new_func, dup_func, free_func);
2626 int SSL_set_ex_data(SSL *s,int idx,void *arg)
2628 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2631 void *SSL_get_ex_data(const SSL *s,int idx)
2633 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2636 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2637 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2639 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2640 new_func, dup_func, free_func);
2643 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2645 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2648 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
2650 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2658 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2660 return(ctx->cert_store);
2663 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2665 if (ctx->cert_store != NULL)
2666 X509_STORE_free(ctx->cert_store);
2667 ctx->cert_store=store;
2670 int SSL_want(const SSL *s)
2676 * \brief Set the callback for generating temporary RSA keys.
2677 * \param ctx the SSL context.
2678 * \param cb the callback
2681 #ifndef OPENSSL_NO_RSA
2682 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2686 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2689 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2693 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2699 * \brief The RSA temporary key callback function.
2700 * \param ssl the SSL session.
2701 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2702 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2703 * of the required key in bits.
2704 * \return the temporary RSA key.
2705 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2708 RSA *cb(SSL *ssl,int is_export,int keylength)
2713 * \brief Set the callback for generating temporary DH keys.
2714 * \param ctx the SSL context.
2715 * \param dh the callback
2718 #ifndef OPENSSL_NO_DH
2719 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2722 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2725 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2728 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2732 #ifndef OPENSSL_NO_ECDH
2733 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2736 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2739 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2742 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2746 #ifndef OPENSSL_NO_PSK
2747 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
2749 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
2751 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
2754 if (ctx->psk_identity_hint != NULL)
2755 OPENSSL_free(ctx->psk_identity_hint);
2756 if (identity_hint != NULL)
2758 ctx->psk_identity_hint = BUF_strdup(identity_hint);
2759 if (ctx->psk_identity_hint == NULL)
2763 ctx->psk_identity_hint = NULL;
2767 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
2772 if (s->session == NULL)
2773 return 1; /* session not created yet, ignored */
2775 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
2777 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
2780 if (s->session->psk_identity_hint != NULL)
2781 OPENSSL_free(s->session->psk_identity_hint);
2782 if (identity_hint != NULL)
2784 s->session->psk_identity_hint = BUF_strdup(identity_hint);
2785 if (s->session->psk_identity_hint == NULL)
2789 s->session->psk_identity_hint = NULL;
2793 const char *SSL_get_psk_identity_hint(const SSL *s)
2795 if (s == NULL || s->session == NULL)
2797 return(s->session->psk_identity_hint);
2800 const char *SSL_get_psk_identity(const SSL *s)
2802 if (s == NULL || s->session == NULL)
2804 return(s->session->psk_identity);
2807 void SSL_set_psk_client_callback(SSL *s,
2808 unsigned int (*cb)(SSL *ssl, const char *hint,
2809 char *identity, unsigned int max_identity_len, unsigned char *psk,
2810 unsigned int max_psk_len))
2812 s->psk_client_callback = cb;
2815 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
2816 unsigned int (*cb)(SSL *ssl, const char *hint,
2817 char *identity, unsigned int max_identity_len, unsigned char *psk,
2818 unsigned int max_psk_len))
2820 ctx->psk_client_callback = cb;
2823 void SSL_set_psk_server_callback(SSL *s,
2824 unsigned int (*cb)(SSL *ssl, const char *identity,
2825 unsigned char *psk, unsigned int max_psk_len))
2827 s->psk_server_callback = cb;
2830 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
2831 unsigned int (*cb)(SSL *ssl, const char *identity,
2832 unsigned char *psk, unsigned int max_psk_len))
2834 ctx->psk_server_callback = cb;
2838 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))
2840 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2842 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))
2844 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2847 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
2848 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
2849 * any. If EVP_MD pointer is passed, initializes ctx with this md
2850 * Returns newly allocated ctx;
2853 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
2855 ssl_clear_hash_ctx(hash);
2856 *hash = EVP_MD_CTX_create();
2857 if (md) EVP_DigestInit_ex(*hash,md,NULL);
2860 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
2863 if (*hash) EVP_MD_CTX_destroy(*hash);
2867 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2868 #include "../crypto/bio/bss_file.c"
2871 IMPLEMENT_STACK_OF(SSL_CIPHER)
2872 IMPLEMENT_STACK_OF(SSL_COMP)