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) 1998-2006 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);
232 /* Check to see if we were changed into a different method, if
233 * so, revert back if we are not doing session-id reuse. */
234 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
236 s->method->ssl_free(s);
237 s->method=s->ctx->method;
238 if (!s->method->ssl_new(s))
243 s->method->ssl_clear(s);
247 /** Used to change an SSL_CTXs default SSL method type */
248 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,const SSL_METHOD *meth)
250 STACK_OF(SSL_CIPHER) *sk;
254 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
255 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
256 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
258 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
264 SSL *SSL_new(SSL_CTX *ctx)
270 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
273 if (ctx->method == NULL)
275 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
279 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
280 if (s == NULL) goto err;
281 memset(s,0,sizeof(SSL));
283 #ifndef OPENSSL_NO_KRB5
284 s->kssl_ctx = kssl_ctx_new();
285 #endif /* OPENSSL_NO_KRB5 */
287 s->options=ctx->options;
289 s->max_cert_list=ctx->max_cert_list;
291 if (ctx->cert != NULL)
293 /* Earlier library versions used to copy the pointer to
294 * the CERT, not its contents; only when setting new
295 * parameters for the per-SSL copy, ssl_cert_new would be
296 * called (and the direct reference to the per-SSL_CTX
297 * settings would be lost, but those still were indirectly
298 * accessed for various purposes, and for that reason they
299 * used to be known as s->ctx->default_cert).
300 * Now we don't look at the SSL_CTX's CERT after having
301 * duplicated it once. */
303 s->cert = ssl_cert_dup(ctx->cert);
308 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
310 s->read_ahead=ctx->read_ahead;
311 s->msg_callback=ctx->msg_callback;
312 s->msg_callback_arg=ctx->msg_callback_arg;
313 s->verify_mode=ctx->verify_mode;
315 s->verify_depth=ctx->verify_depth;
317 s->sid_ctx_length=ctx->sid_ctx_length;
318 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
319 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
320 s->verify_callback=ctx->default_verify_callback;
321 s->generate_session_id=ctx->generate_session_id;
323 s->param = X509_VERIFY_PARAM_new();
326 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
328 s->purpose = ctx->purpose;
329 s->trust = ctx->trust;
331 s->quiet_shutdown=ctx->quiet_shutdown;
332 s->max_send_fragment = ctx->max_send_fragment;
334 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
336 #ifndef OPENSSL_NO_TLSEXT
337 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
341 s->verify_result=X509_V_OK;
343 s->method=ctx->method;
345 if (!s->method->ssl_new(s))
349 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
353 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
355 #ifndef OPENSSL_NO_PSK
356 s->psk_client_callback=ctx->psk_client_callback;
357 s->psk_server_callback=ctx->psk_server_callback;
365 ssl_cert_free(s->cert);
367 SSL_CTX_free(s->ctx); /* decrement reference count */
370 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
374 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
375 unsigned int sid_ctx_len)
377 if(sid_ctx_len > sizeof ctx->sid_ctx)
379 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
382 ctx->sid_ctx_length=sid_ctx_len;
383 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
388 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
389 unsigned int sid_ctx_len)
391 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
393 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
396 ssl->sid_ctx_length=sid_ctx_len;
397 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
402 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
404 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
405 ctx->generate_session_id = cb;
406 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
410 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
412 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
413 ssl->generate_session_id = cb;
414 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
418 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
421 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
422 * we can "construct" a session to give us the desired check - ie. to
423 * find if there's a session in the hash table that would conflict with
424 * any new session built out of this id/id_len and the ssl_version in
425 * use by this SSL. */
428 if(id_len > sizeof r.session_id)
431 r.ssl_version = ssl->version;
432 r.session_id_length = id_len;
433 memcpy(r.session_id, id, id_len);
434 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
435 * callback is calling us to check the uniqueness of a shorter ID, it
436 * must be compared as a padded-out ID because that is what it will be
437 * converted to when the callback has finished choosing it. */
438 if((r.ssl_version == SSL2_VERSION) &&
439 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
441 memset(r.session_id + id_len, 0,
442 SSL2_SSL_SESSION_ID_LENGTH - id_len);
443 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
446 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
447 p = (SSL_SESSION *)lh_retrieve(ssl->ctx->sessions, &r);
448 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
452 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
454 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
457 int SSL_set_purpose(SSL *s, int purpose)
459 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
462 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
464 return X509_VERIFY_PARAM_set_trust(s->param, trust);
467 int SSL_set_trust(SSL *s, int trust)
469 return X509_VERIFY_PARAM_set_trust(s->param, trust);
472 void SSL_free(SSL *s)
479 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
487 fprintf(stderr,"SSL_free, bad reference count\n");
493 X509_VERIFY_PARAM_free(s->param);
495 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
499 /* If the buffering BIO is in place, pop it off */
500 if (s->bbio == s->wbio)
502 s->wbio=BIO_pop(s->wbio);
508 BIO_free_all(s->rbio);
509 if ((s->wbio != NULL) && (s->wbio != s->rbio))
510 BIO_free_all(s->wbio);
512 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
514 /* add extra stuff */
515 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
516 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
518 /* Make the next call work :-) */
519 if (s->session != NULL)
521 ssl_clear_bad_session(s);
522 SSL_SESSION_free(s->session);
525 ssl_clear_cipher_ctx(s);
527 if (s->cert != NULL) ssl_cert_free(s->cert);
528 /* Free up if allocated */
530 if (s->ctx) SSL_CTX_free(s->ctx);
531 #ifndef OPENSSL_NO_TLSEXT
532 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx);
535 if (s->client_CA != NULL)
536 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
538 if (s->method != NULL) s->method->ssl_free(s);
540 #ifndef OPENSSL_NO_KRB5
541 if (s->kssl_ctx != NULL)
542 kssl_ctx_free(s->kssl_ctx);
543 #endif /* OPENSSL_NO_KRB5 */
548 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
550 /* If the output buffering BIO is still in place, remove it
554 if (s->wbio == s->bbio)
556 s->wbio=s->wbio->next_bio;
557 s->bbio->next_bio=NULL;
560 if ((s->rbio != NULL) && (s->rbio != rbio))
561 BIO_free_all(s->rbio);
562 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
563 BIO_free_all(s->wbio);
568 BIO *SSL_get_rbio(const SSL *s)
571 BIO *SSL_get_wbio(const SSL *s)
574 int SSL_get_fd(const SSL *s)
576 return(SSL_get_rfd(s));
579 int SSL_get_rfd(const SSL *s)
585 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
591 int SSL_get_wfd(const SSL *s)
597 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
603 #ifndef OPENSSL_NO_SOCK
604 int SSL_set_fd(SSL *s,int fd)
609 bio=BIO_new(BIO_s_socket());
613 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
616 BIO_set_fd(bio,fd,BIO_NOCLOSE);
617 SSL_set_bio(s,bio,bio);
623 int SSL_set_wfd(SSL *s,int fd)
628 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
629 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
631 bio=BIO_new(BIO_s_socket());
634 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
635 BIO_set_fd(bio,fd,BIO_NOCLOSE);
636 SSL_set_bio(s,SSL_get_rbio(s),bio);
639 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
645 int SSL_set_rfd(SSL *s,int fd)
650 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
651 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
653 bio=BIO_new(BIO_s_socket());
657 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
660 BIO_set_fd(bio,fd,BIO_NOCLOSE);
661 SSL_set_bio(s,bio,SSL_get_wbio(s));
664 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
672 /* return length of latest Finished message we sent, copy to 'buf' */
673 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
679 ret = s->s3->tmp.finish_md_len;
682 memcpy(buf, s->s3->tmp.finish_md, count);
687 /* return length of latest Finished message we expected, copy to 'buf' */
688 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
694 ret = s->s3->tmp.peer_finish_md_len;
697 memcpy(buf, s->s3->tmp.peer_finish_md, count);
703 int SSL_get_verify_mode(const SSL *s)
705 return(s->verify_mode);
708 int SSL_get_verify_depth(const SSL *s)
710 return X509_VERIFY_PARAM_get_depth(s->param);
713 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
715 return(s->verify_callback);
718 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
720 return(ctx->verify_mode);
723 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
725 return X509_VERIFY_PARAM_get_depth(ctx->param);
728 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
730 return(ctx->default_verify_callback);
733 void SSL_set_verify(SSL *s,int mode,
734 int (*callback)(int ok,X509_STORE_CTX *ctx))
737 if (callback != NULL)
738 s->verify_callback=callback;
741 void SSL_set_verify_depth(SSL *s,int depth)
743 X509_VERIFY_PARAM_set_depth(s->param, depth);
746 void SSL_set_read_ahead(SSL *s,int yes)
751 int SSL_get_read_ahead(const SSL *s)
753 return(s->read_ahead);
756 int SSL_pending(const SSL *s)
758 /* SSL_pending cannot work properly if read-ahead is enabled
759 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
760 * and it is impossible to fix since SSL_pending cannot report
761 * errors that may be observed while scanning the new data.
762 * (Note that SSL_pending() is often used as a boolean value,
763 * so we'd better not return -1.)
765 return(s->method->ssl_pending(s));
768 X509 *SSL_get_peer_certificate(const SSL *s)
772 if ((s == NULL) || (s->session == NULL))
777 if (r == NULL) return(r);
779 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
784 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
788 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
791 r=s->session->sess_cert->cert_chain;
793 /* If we are a client, cert_chain includes the peer's own
794 * certificate; if we are a server, it does not. */
799 /* Now in theory, since the calling process own 't' it should be safe to
800 * modify. We need to be able to read f without being hassled */
801 void SSL_copy_session_id(SSL *t,const SSL *f)
805 /* Do we need to to SSL locking? */
806 SSL_set_session(t,SSL_get_session(f));
808 /* what if we are setup as SSLv2 but want to talk SSLv3 or
810 if (t->method != f->method)
812 t->method->ssl_free(t); /* cleanup current */
813 t->method=f->method; /* change method */
814 t->method->ssl_new(t); /* setup new */
820 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
825 if (tmp != NULL) ssl_cert_free(tmp);
826 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
829 /* Fix this so it checks all the valid key/cert options */
830 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
832 if ( (ctx == NULL) ||
833 (ctx->cert == NULL) ||
834 (ctx->cert->key->x509 == NULL))
836 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
839 if (ctx->cert->key->privatekey == NULL)
841 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
844 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
847 /* Fix this function so that it takes an optional type parameter */
848 int SSL_check_private_key(const SSL *ssl)
852 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
855 if (ssl->cert == NULL)
857 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
860 if (ssl->cert->key->x509 == NULL)
862 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
865 if (ssl->cert->key->privatekey == NULL)
867 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
870 return(X509_check_private_key(ssl->cert->key->x509,
871 ssl->cert->key->privatekey));
874 int SSL_accept(SSL *s)
876 if (s->handshake_func == 0)
877 /* Not properly initialized yet */
878 SSL_set_accept_state(s);
880 return(s->method->ssl_accept(s));
883 int SSL_connect(SSL *s)
885 if (s->handshake_func == 0)
886 /* Not properly initialized yet */
887 SSL_set_connect_state(s);
889 return(s->method->ssl_connect(s));
892 long SSL_get_default_timeout(const SSL *s)
894 return(s->method->get_timeout());
897 int SSL_read(SSL *s,void *buf,int num)
899 if (s->handshake_func == 0)
901 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
905 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
907 s->rwstate=SSL_NOTHING;
910 return(s->method->ssl_read(s,buf,num));
913 int SSL_peek(SSL *s,void *buf,int num)
915 if (s->handshake_func == 0)
917 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
921 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
925 return(s->method->ssl_peek(s,buf,num));
928 int SSL_write(SSL *s,const void *buf,int num)
930 if (s->handshake_func == 0)
932 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
936 if (s->shutdown & SSL_SENT_SHUTDOWN)
938 s->rwstate=SSL_NOTHING;
939 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
942 return(s->method->ssl_write(s,buf,num));
945 int SSL_shutdown(SSL *s)
947 /* Note that this function behaves differently from what one might
948 * expect. Return values are 0 for no success (yet),
949 * 1 for success; but calling it once is usually not enough,
950 * even if blocking I/O is used (see ssl3_shutdown).
953 if (s->handshake_func == 0)
955 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
959 if ((s != NULL) && !SSL_in_init(s))
960 return(s->method->ssl_shutdown(s));
965 int SSL_renegotiate(SSL *s)
967 if (s->new_session == 0)
971 return(s->method->ssl_renegotiate(s));
974 int SSL_renegotiate_pending(SSL *s)
976 /* becomes true when negotiation is requested;
977 * false again once a handshake has finished */
978 return (s->new_session != 0);
981 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
987 case SSL_CTRL_GET_READ_AHEAD:
988 return(s->read_ahead);
989 case SSL_CTRL_SET_READ_AHEAD:
994 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
995 s->msg_callback_arg = parg;
998 case SSL_CTRL_OPTIONS:
999 return(s->options|=larg);
1001 return(s->mode|=larg);
1002 case SSL_CTRL_GET_MAX_CERT_LIST:
1003 return(s->max_cert_list);
1004 case SSL_CTRL_SET_MAX_CERT_LIST:
1006 s->max_cert_list=larg;
1008 case SSL_CTRL_SET_MTU:
1009 if (SSL_version(s) == DTLS1_VERSION)
1015 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1016 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1018 s->max_send_fragment = larg;
1021 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1025 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1029 case SSL_CTRL_SET_MSG_CALLBACK:
1030 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1034 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1038 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
1040 return ctx->sessions;
1043 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1049 case SSL_CTRL_GET_READ_AHEAD:
1050 return(ctx->read_ahead);
1051 case SSL_CTRL_SET_READ_AHEAD:
1053 ctx->read_ahead=larg;
1056 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1057 ctx->msg_callback_arg = parg;
1060 case SSL_CTRL_GET_MAX_CERT_LIST:
1061 return(ctx->max_cert_list);
1062 case SSL_CTRL_SET_MAX_CERT_LIST:
1063 l=ctx->max_cert_list;
1064 ctx->max_cert_list=larg;
1067 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1068 l=ctx->session_cache_size;
1069 ctx->session_cache_size=larg;
1071 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1072 return(ctx->session_cache_size);
1073 case SSL_CTRL_SET_SESS_CACHE_MODE:
1074 l=ctx->session_cache_mode;
1075 ctx->session_cache_mode=larg;
1077 case SSL_CTRL_GET_SESS_CACHE_MODE:
1078 return(ctx->session_cache_mode);
1080 case SSL_CTRL_SESS_NUMBER:
1081 return(ctx->sessions->num_items);
1082 case SSL_CTRL_SESS_CONNECT:
1083 return(ctx->stats.sess_connect);
1084 case SSL_CTRL_SESS_CONNECT_GOOD:
1085 return(ctx->stats.sess_connect_good);
1086 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1087 return(ctx->stats.sess_connect_renegotiate);
1088 case SSL_CTRL_SESS_ACCEPT:
1089 return(ctx->stats.sess_accept);
1090 case SSL_CTRL_SESS_ACCEPT_GOOD:
1091 return(ctx->stats.sess_accept_good);
1092 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1093 return(ctx->stats.sess_accept_renegotiate);
1094 case SSL_CTRL_SESS_HIT:
1095 return(ctx->stats.sess_hit);
1096 case SSL_CTRL_SESS_CB_HIT:
1097 return(ctx->stats.sess_cb_hit);
1098 case SSL_CTRL_SESS_MISSES:
1099 return(ctx->stats.sess_miss);
1100 case SSL_CTRL_SESS_TIMEOUTS:
1101 return(ctx->stats.sess_timeout);
1102 case SSL_CTRL_SESS_CACHE_FULL:
1103 return(ctx->stats.sess_cache_full);
1104 case SSL_CTRL_OPTIONS:
1105 return(ctx->options|=larg);
1107 return(ctx->mode|=larg);
1108 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1109 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1111 ctx->max_send_fragment = larg;
1114 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1118 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1122 case SSL_CTRL_SET_MSG_CALLBACK:
1123 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1127 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1131 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1139 return((l > 0)?1:-1);
1142 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1143 const SSL_CIPHER * const *bp)
1147 l=(*ap)->id-(*bp)->id;
1151 return((l > 0)?1:-1);
1154 /** return a STACK of the ciphers available for the SSL and in order of
1156 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1160 if (s->cipher_list != NULL)
1162 return(s->cipher_list);
1164 else if ((s->ctx != NULL) &&
1165 (s->ctx->cipher_list != NULL))
1167 return(s->ctx->cipher_list);
1173 /** return a STACK of the ciphers available for the SSL and in order of
1175 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1179 if (s->cipher_list_by_id != NULL)
1181 return(s->cipher_list_by_id);
1183 else if ((s->ctx != NULL) &&
1184 (s->ctx->cipher_list_by_id != NULL))
1186 return(s->ctx->cipher_list_by_id);
1192 /** The old interface to get the same thing as SSL_get_ciphers() */
1193 const char *SSL_get_cipher_list(const SSL *s,int n)
1196 STACK_OF(SSL_CIPHER) *sk;
1198 if (s == NULL) return(NULL);
1199 sk=SSL_get_ciphers(s);
1200 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1202 c=sk_SSL_CIPHER_value(sk,n);
1203 if (c == NULL) return(NULL);
1207 /** specify the ciphers to be used by default by the SSL_CTX */
1208 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1210 STACK_OF(SSL_CIPHER) *sk;
1212 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1213 &ctx->cipher_list_by_id,str);
1214 /* ssl_create_cipher_list may return an empty stack if it
1215 * was unable to find a cipher matching the given rule string
1216 * (for example if the rule string specifies a cipher which
1217 * has been disabled). This is not an error as far as
1218 * ssl_create_cipher_list is concerned, and hence
1219 * ctx->cipher_list and ctx->cipher_list_by_id has been
1223 else if (sk_SSL_CIPHER_num(sk) == 0)
1225 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1231 /** specify the ciphers to be used by the SSL */
1232 int SSL_set_cipher_list(SSL *s,const char *str)
1234 STACK_OF(SSL_CIPHER) *sk;
1236 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1237 &s->cipher_list_by_id,str);
1238 /* see comment in SSL_CTX_set_cipher_list */
1241 else if (sk_SSL_CIPHER_num(sk) == 0)
1243 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1249 /* works well for SSLv2, not so good for SSLv3 */
1250 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1254 STACK_OF(SSL_CIPHER) *sk;
1258 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1263 sk=s->session->ciphers;
1264 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1266 /* Decrement for either the ':' or a '\0' */
1268 c=sk_SSL_CIPHER_value(sk,i);
1269 for (cp=c->name; *cp; )
1285 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1286 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1291 #ifndef OPENSSL_NO_KRB5
1292 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1293 #endif /* OPENSSL_NO_KRB5 */
1295 if (sk == NULL) return(0);
1298 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1300 c=sk_SSL_CIPHER_value(sk,i);
1301 #ifndef OPENSSL_NO_KRB5
1302 if ((c->algorithms & SSL_KRB5) && nokrb5)
1304 #endif /* OPENSSL_NO_KRB5 */
1305 #ifndef OPENSSL_NO_PSK
1306 /* with PSK there must be client callback set */
1307 if ((c->algorithms & SSL_PSK) && s->psk_client_callback == NULL)
1309 #endif /* OPENSSL_NO_PSK */
1310 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1316 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1317 STACK_OF(SSL_CIPHER) **skp)
1320 STACK_OF(SSL_CIPHER) *sk;
1323 n=ssl_put_cipher_by_char(s,NULL,NULL);
1326 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1329 if ((skp == NULL) || (*skp == NULL))
1330 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1334 sk_SSL_CIPHER_zero(sk);
1337 for (i=0; i<num; i+=n)
1339 c=ssl_get_cipher_by_char(s,p);
1343 if (!sk_SSL_CIPHER_push(sk,c))
1345 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1355 if ((skp == NULL) || (*skp == NULL))
1356 sk_SSL_CIPHER_free(sk);
1361 #ifndef OPENSSL_TLSEXT
1362 /** return a servername extension value if provided in Client Hello, or NULL.
1363 * So far, only host_name types are defined (RFC 3546).
1366 const char *SSL_get_servername(const SSL *s, const int type)
1368 if (type != TLSEXT_NAMETYPE_host_name)
1371 return s->session && !s->tlsext_hostname ?
1372 s->session->tlsext_hostname :
1376 int SSL_get_servername_type(const SSL *s)
1378 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1379 return TLSEXT_NAMETYPE_host_name;
1384 unsigned long SSL_SESSION_hash(const SSL_SESSION *a)
1389 ((unsigned int) a->session_id[0] )|
1390 ((unsigned int) a->session_id[1]<< 8L)|
1391 ((unsigned long)a->session_id[2]<<16L)|
1392 ((unsigned long)a->session_id[3]<<24L);
1396 /* NB: If this function (or indeed the hash function which uses a sort of
1397 * coarser function than this one) is changed, ensure
1398 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1399 * able to construct an SSL_SESSION that will collide with any existing session
1400 * with a matching session ID. */
1401 int SSL_SESSION_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1403 if (a->ssl_version != b->ssl_version)
1405 if (a->session_id_length != b->session_id_length)
1407 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1410 /* These wrapper functions should remain rather than redeclaring
1411 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1412 * variable. The reason is that the functions aren't static, they're exposed via
1414 static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *)
1415 static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *)
1417 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1423 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1427 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1429 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1432 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1436 memset(ret,0,sizeof(SSL_CTX));
1440 ret->cert_store=NULL;
1441 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1442 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1443 ret->session_cache_head=NULL;
1444 ret->session_cache_tail=NULL;
1446 /* We take the system default */
1447 ret->session_timeout=meth->get_timeout();
1449 ret->new_session_cb=0;
1450 ret->remove_session_cb=0;
1451 ret->get_session_cb=0;
1452 ret->generate_session_id=0;
1454 memset((char *)&ret->stats,0,sizeof(ret->stats));
1457 ret->quiet_shutdown=0;
1459 /* ret->cipher=NULL;*/
1460 /* ret->s2->challenge=NULL;
1461 ret->master_key=NULL;
1463 ret->s2->conn_id=NULL; */
1465 ret->info_callback=NULL;
1467 ret->app_verify_callback=0;
1468 ret->app_verify_arg=NULL;
1470 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1472 ret->msg_callback=0;
1473 ret->msg_callback_arg=NULL;
1474 ret->verify_mode=SSL_VERIFY_NONE;
1476 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1478 ret->sid_ctx_length=0;
1479 ret->default_verify_callback=NULL;
1480 if ((ret->cert=ssl_cert_new()) == NULL)
1483 ret->default_passwd_callback=0;
1484 ret->default_passwd_callback_userdata=NULL;
1485 ret->client_cert_cb=0;
1486 ret->app_gen_cookie_cb=0;
1487 ret->app_verify_cookie_cb=0;
1489 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash),
1490 LHASH_COMP_FN(SSL_SESSION_cmp));
1491 if (ret->sessions == NULL) goto err;
1492 ret->cert_store=X509_STORE_new();
1493 if (ret->cert_store == NULL) goto err;
1495 ssl_create_cipher_list(ret->method,
1496 &ret->cipher_list,&ret->cipher_list_by_id,
1497 SSL_DEFAULT_CIPHER_LIST);
1498 if (ret->cipher_list == NULL
1499 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1501 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1505 ret->param = X509_VERIFY_PARAM_new();
1509 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1511 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1514 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1516 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1519 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1521 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1525 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1528 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1530 ret->extra_certs=NULL;
1531 ret->comp_methods=SSL_COMP_get_compression_methods();
1533 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1535 #ifndef OPENSSL_NO_TLSEXT
1536 ret->tlsext_servername_callback = 0;
1537 ret->tlsext_servername_arg = NULL;
1539 #ifndef OPENSSL_NO_PSK
1540 ret->psk_identity_hint=NULL;
1541 ret->psk_client_callback=NULL;
1542 ret->psk_server_callback=NULL;
1546 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1548 if (ret != NULL) SSL_CTX_free(ret);
1553 static void SSL_COMP_free(SSL_COMP *comp)
1554 { OPENSSL_free(comp); }
1557 void SSL_CTX_free(SSL_CTX *a)
1561 if (a == NULL) return;
1563 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1565 REF_PRINT("SSL_CTX",a);
1571 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1577 X509_VERIFY_PARAM_free(a->param);
1580 * Free internal session cache. However: the remove_cb() may reference
1581 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1582 * after the sessions were flushed.
1583 * As the ex_data handling routines might also touch the session cache,
1584 * the most secure solution seems to be: empty (flush) the cache, then
1585 * free ex_data, then finally free the cache.
1586 * (See ticket [openssl.org #212].)
1588 if (a->sessions != NULL)
1589 SSL_CTX_flush_sessions(a,0);
1591 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1593 if (a->sessions != NULL)
1594 lh_free(a->sessions);
1596 if (a->cert_store != NULL)
1597 X509_STORE_free(a->cert_store);
1598 if (a->cipher_list != NULL)
1599 sk_SSL_CIPHER_free(a->cipher_list);
1600 if (a->cipher_list_by_id != NULL)
1601 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1602 if (a->cert != NULL)
1603 ssl_cert_free(a->cert);
1604 if (a->client_CA != NULL)
1605 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1606 if (a->extra_certs != NULL)
1607 sk_X509_pop_free(a->extra_certs,X509_free);
1608 #if 0 /* This should never be done, since it removes a global database */
1609 if (a->comp_methods != NULL)
1610 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1612 a->comp_methods = NULL;
1615 #ifndef OPENSSL_NO_PSK
1616 if (a->psk_identity_hint)
1617 OPENSSL_free(a->psk_identity_hint);
1622 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1624 ctx->default_passwd_callback=cb;
1627 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1629 ctx->default_passwd_callback_userdata=u;
1632 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1634 ctx->app_verify_callback=cb;
1635 ctx->app_verify_arg=arg;
1638 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1640 ctx->verify_mode=mode;
1641 ctx->default_verify_callback=cb;
1644 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1646 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
1649 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1652 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1653 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1654 int rsa_tmp_export,dh_tmp_export,kl;
1655 unsigned long mask,emask;
1656 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size;
1657 #ifndef OPENSSL_NO_ECDH
1661 EVP_PKEY *ecc_pkey = NULL;
1662 int signature_nid = 0;
1664 if (c == NULL) return;
1666 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1668 #ifndef OPENSSL_NO_RSA
1669 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1670 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1671 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1673 rsa_tmp=rsa_tmp_export=0;
1675 #ifndef OPENSSL_NO_DH
1676 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1677 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1678 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1680 dh_tmp=dh_tmp_export=0;
1683 #ifndef OPENSSL_NO_ECDH
1684 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL);
1686 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1687 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1688 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1689 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1690 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1691 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1692 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1693 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1694 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1695 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1696 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1697 /* FIX THIS EAY EAY EAY */
1698 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1699 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1700 cpk= &(c->pkeys[SSL_PKEY_ECC]);
1701 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL);
1706 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1707 rsa_tmp,rsa_tmp_export,dh_tmp,
1708 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1711 if (rsa_enc || (rsa_tmp && rsa_sign))
1713 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1717 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1718 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1719 (rsa_enc || rsa_sign || dsa_sign))
1721 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1722 (rsa_enc || rsa_sign || dsa_sign))
1732 if (dh_rsa) mask|=SSL_kDHr;
1733 if (dh_rsa_export) emask|=SSL_kDHr;
1735 if (dh_dsa) mask|=SSL_kDHd;
1736 if (dh_dsa_export) emask|=SSL_kDHd;
1738 if (rsa_enc || rsa_sign)
1753 #ifndef OPENSSL_NO_KRB5
1754 mask|=SSL_kKRB5|SSL_aKRB5;
1755 emask|=SSL_kKRB5|SSL_aKRB5;
1758 /* An ECC certificate may be usable for ECDH and/or
1759 * ECDSA cipher suites depending on the key usage extension.
1763 /* This call populates extension flags (ex_flags) */
1764 x = (c->pkeys[SSL_PKEY_ECC]).x509;
1765 X509_check_purpose(x, -1, 0);
1766 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1767 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
1768 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1769 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
1770 ecc_pkey = X509_get_pubkey(x);
1771 ecc_pkey_size = (ecc_pkey != NULL) ?
1772 EVP_PKEY_bits(ecc_pkey) : 0;
1773 EVP_PKEY_free(ecc_pkey);
1774 if ((x->sig_alg) && (x->sig_alg->algorithm))
1775 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1776 #ifndef OPENSSL_NO_ECDH
1779 if ((signature_nid == NID_md5WithRSAEncryption) ||
1780 (signature_nid == NID_md4WithRSAEncryption) ||
1781 (signature_nid == NID_md2WithRSAEncryption))
1783 mask|=SSL_kECDH|SSL_aRSA;
1784 if (ecc_pkey_size <= 163)
1785 emask|=SSL_kECDH|SSL_aRSA;
1787 if (signature_nid == NID_ecdsa_with_SHA1)
1789 mask|=SSL_kECDH|SSL_aECDSA;
1790 if (ecc_pkey_size <= 163)
1791 emask|=SSL_kECDH|SSL_aECDSA;
1795 #ifndef OPENSSL_NO_ECDSA
1804 #ifndef OPENSSL_NO_ECDH
1812 #ifndef OPENSSL_NO_PSK
1813 mask |= SSL_kPSK | SSL_aPSK;
1814 emask |= SSL_kPSK | SSL_aPSK;
1818 c->export_mask=emask;
1822 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
1823 #define ku_reject(x, usage) \
1824 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
1826 int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs)
1828 unsigned long alg = cs->algorithms;
1829 EVP_PKEY *pkey = NULL;
1831 int signature_nid = 0;
1833 if (SSL_C_IS_EXPORT(cs))
1835 /* ECDH key length in export ciphers must be <= 163 bits */
1836 pkey = X509_get_pubkey(x);
1837 if (pkey == NULL) return 0;
1838 keysize = EVP_PKEY_bits(pkey);
1839 EVP_PKEY_free(pkey);
1840 if (keysize > 163) return 0;
1843 /* This call populates the ex_flags field correctly */
1844 X509_check_purpose(x, -1, 0);
1845 if ((x->sig_alg) && (x->sig_alg->algorithm))
1846 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1847 if (alg & SSL_kECDH)
1849 /* key usage, if present, must allow key agreement */
1850 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
1854 if (alg & SSL_aECDSA)
1856 /* signature alg must be ECDSA */
1857 if (signature_nid != NID_ecdsa_with_SHA1)
1864 /* signature alg must be RSA */
1865 if ((signature_nid != NID_md5WithRSAEncryption) &&
1866 (signature_nid != NID_md4WithRSAEncryption) &&
1867 (signature_nid != NID_md2WithRSAEncryption))
1873 else if (alg & SSL_aECDSA)
1875 /* key usage, if present, must allow signing */
1876 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
1882 return 1; /* all checks are ok */
1885 /* THIS NEEDS CLEANING UP */
1886 X509 *ssl_get_server_send_cert(SSL *s)
1888 unsigned long alg,mask,kalg;
1893 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1894 alg=s->s3->tmp.new_cipher->algorithms;
1895 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1896 mask=is_export?c->export_mask:c->mask;
1897 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1899 if (kalg & SSL_kECDH)
1901 /* we don't need to look at SSL_kECDHE
1902 * since no certificate is needed for
1903 * anon ECDH and for authenticated
1904 * ECDHE, the check for the auth
1905 * algorithm will set i correctly
1906 * NOTE: For ECDH-RSA, we need an ECC
1907 * not an RSA cert but for ECDHE-RSA
1908 * we need an RSA cert. Placing the
1909 * checks for SSL_kECDH before RSA
1910 * checks ensures the correct cert is chosen.
1914 else if (kalg & SSL_aECDSA)
1918 else if (kalg & SSL_kDHr)
1920 else if (kalg & SSL_kDHd)
1922 else if (kalg & SSL_aDSS)
1923 i=SSL_PKEY_DSA_SIGN;
1924 else if (kalg & SSL_aRSA)
1926 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1927 i=SSL_PKEY_RSA_SIGN;
1931 else if (kalg & SSL_aKRB5)
1933 /* VRS something else here? */
1936 else /* if (kalg & SSL_aNULL) */
1938 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
1941 if (c->pkeys[i].x509 == NULL) return(NULL);
1943 return(c->pkeys[i].x509);
1946 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1951 alg=cipher->algorithms;
1954 if ((alg & SSL_aDSS) &&
1955 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1956 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1957 else if (alg & SSL_aRSA)
1959 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1960 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1961 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1962 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1966 else if ((alg & SSL_aECDSA) &&
1967 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
1968 return(c->pkeys[SSL_PKEY_ECC].privatekey);
1969 else /* if (alg & SSL_aNULL) */
1971 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
1976 void ssl_update_cache(SSL *s,int mode)
1980 /* If the session_id_length is 0, we are not supposed to cache it,
1981 * and it would be rather hard to do anyway :-) */
1982 if (s->session->session_id_length == 0) return;
1984 i=s->session_ctx->session_cache_mode;
1985 if ((i & mode) && (!s->hit)
1986 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
1987 || SSL_CTX_add_session(s->session_ctx,s->session))
1988 && (s->session_ctx->new_session_cb != NULL))
1990 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1991 if (!s->session_ctx->new_session_cb(s,s->session))
1992 SSL_SESSION_free(s->session);
1995 /* auto flush every 255 connections */
1996 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1997 ((i & mode) == mode))
1999 if ( (((mode & SSL_SESS_CACHE_CLIENT)
2000 ?s->session_ctx->stats.sess_connect_good
2001 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
2003 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
2008 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2013 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2018 if (s->method != meth)
2020 if (s->handshake_func != NULL)
2021 conn=(s->handshake_func == s->method->ssl_connect);
2023 if (s->method->version == meth->version)
2027 s->method->ssl_free(s);
2029 ret=s->method->ssl_new(s);
2033 s->handshake_func=meth->ssl_connect;
2035 s->handshake_func=meth->ssl_accept;
2040 int SSL_get_error(const SSL *s,int i)
2046 if (i > 0) return(SSL_ERROR_NONE);
2048 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2049 * etc, where we do encode the error */
2050 if ((l=ERR_peek_error()) != 0)
2052 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2053 return(SSL_ERROR_SYSCALL);
2055 return(SSL_ERROR_SSL);
2058 if ((i < 0) && SSL_want_read(s))
2060 bio=SSL_get_rbio(s);
2061 if (BIO_should_read(bio))
2062 return(SSL_ERROR_WANT_READ);
2063 else if (BIO_should_write(bio))
2064 /* This one doesn't make too much sense ... We never try
2065 * to write to the rbio, and an application program where
2066 * rbio and wbio are separate couldn't even know what it
2068 * However if we ever set s->rwstate incorrectly
2069 * (so that we have SSL_want_read(s) instead of
2070 * SSL_want_write(s)) and rbio and wbio *are* the same,
2071 * this test works around that bug; so it might be safer
2073 return(SSL_ERROR_WANT_WRITE);
2074 else if (BIO_should_io_special(bio))
2076 reason=BIO_get_retry_reason(bio);
2077 if (reason == BIO_RR_CONNECT)
2078 return(SSL_ERROR_WANT_CONNECT);
2079 else if (reason == BIO_RR_ACCEPT)
2080 return(SSL_ERROR_WANT_ACCEPT);
2082 return(SSL_ERROR_SYSCALL); /* unknown */
2086 if ((i < 0) && SSL_want_write(s))
2088 bio=SSL_get_wbio(s);
2089 if (BIO_should_write(bio))
2090 return(SSL_ERROR_WANT_WRITE);
2091 else if (BIO_should_read(bio))
2092 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2093 return(SSL_ERROR_WANT_READ);
2094 else if (BIO_should_io_special(bio))
2096 reason=BIO_get_retry_reason(bio);
2097 if (reason == BIO_RR_CONNECT)
2098 return(SSL_ERROR_WANT_CONNECT);
2099 else if (reason == BIO_RR_ACCEPT)
2100 return(SSL_ERROR_WANT_ACCEPT);
2102 return(SSL_ERROR_SYSCALL);
2105 if ((i < 0) && SSL_want_x509_lookup(s))
2107 return(SSL_ERROR_WANT_X509_LOOKUP);
2112 if (s->version == SSL2_VERSION)
2114 /* assume it is the socket being closed */
2115 return(SSL_ERROR_ZERO_RETURN);
2119 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2120 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2121 return(SSL_ERROR_ZERO_RETURN);
2124 return(SSL_ERROR_SYSCALL);
2127 int SSL_do_handshake(SSL *s)
2131 if (s->handshake_func == NULL)
2133 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2137 s->method->ssl_renegotiate_check(s);
2139 if (SSL_in_init(s) || SSL_in_before(s))
2141 ret=s->handshake_func(s);
2146 /* For the next 2 functions, SSL_clear() sets shutdown and so
2147 * one of these calls will reset it */
2148 void SSL_set_accept_state(SSL *s)
2152 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2153 s->handshake_func=s->method->ssl_accept;
2154 /* clear the current cipher */
2155 ssl_clear_cipher_ctx(s);
2158 void SSL_set_connect_state(SSL *s)
2162 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2163 s->handshake_func=s->method->ssl_connect;
2164 /* clear the current cipher */
2165 ssl_clear_cipher_ctx(s);
2168 int ssl_undefined_function(SSL *s)
2170 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2174 int ssl_undefined_void_function(void)
2176 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2180 int ssl_undefined_const_function(const SSL *s)
2182 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2186 SSL_METHOD *ssl_bad_method(int ver)
2188 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2192 const char *SSL_get_version(const SSL *s)
2194 if (s->version == TLS1_VERSION)
2196 else if (s->version == SSL3_VERSION)
2198 else if (s->version == SSL2_VERSION)
2204 SSL *SSL_dup(SSL *s)
2206 STACK_OF(X509_NAME) *sk;
2211 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2214 ret->version = s->version;
2215 ret->type = s->type;
2216 ret->method = s->method;
2218 if (s->session != NULL)
2220 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2221 SSL_copy_session_id(ret,s);
2225 /* No session has been established yet, so we have to expect
2226 * that s->cert or ret->cert will be changed later --
2227 * they should not both point to the same object,
2228 * and thus we can't use SSL_copy_session_id. */
2230 ret->method->ssl_free(ret);
2231 ret->method = s->method;
2232 ret->method->ssl_new(ret);
2234 if (s->cert != NULL)
2236 if (ret->cert != NULL)
2238 ssl_cert_free(ret->cert);
2240 ret->cert = ssl_cert_dup(s->cert);
2241 if (ret->cert == NULL)
2245 SSL_set_session_id_context(ret,
2246 s->sid_ctx, s->sid_ctx_length);
2249 ret->options=s->options;
2251 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2252 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2253 ret->msg_callback = s->msg_callback;
2254 ret->msg_callback_arg = s->msg_callback_arg;
2255 SSL_set_verify(ret,SSL_get_verify_mode(s),
2256 SSL_get_verify_callback(s));
2257 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2258 ret->generate_session_id = s->generate_session_id;
2260 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2262 ret->debug=s->debug;
2264 /* copy app data, a little dangerous perhaps */
2265 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2268 /* setup rbio, and wbio */
2269 if (s->rbio != NULL)
2271 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2274 if (s->wbio != NULL)
2276 if (s->wbio != s->rbio)
2278 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2282 ret->wbio=ret->rbio;
2284 ret->rwstate = s->rwstate;
2285 ret->in_handshake = s->in_handshake;
2286 ret->handshake_func = s->handshake_func;
2287 ret->server = s->server;
2288 ret->new_session = s->new_session;
2289 ret->quiet_shutdown = s->quiet_shutdown;
2290 ret->shutdown=s->shutdown;
2291 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2292 ret->rstate=s->rstate;
2293 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2296 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2298 /* dup the cipher_list and cipher_list_by_id stacks */
2299 if (s->cipher_list != NULL)
2301 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2304 if (s->cipher_list_by_id != NULL)
2305 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2309 /* Dup the client_CA list */
2310 if (s->client_CA != NULL)
2312 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2314 for (i=0; i<sk_X509_NAME_num(sk); i++)
2316 xn=sk_X509_NAME_value(sk,i);
2317 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2328 if (ret != NULL) SSL_free(ret);
2334 void ssl_clear_cipher_ctx(SSL *s)
2336 if (s->enc_read_ctx != NULL)
2338 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2339 OPENSSL_free(s->enc_read_ctx);
2340 s->enc_read_ctx=NULL;
2342 if (s->enc_write_ctx != NULL)
2344 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2345 OPENSSL_free(s->enc_write_ctx);
2346 s->enc_write_ctx=NULL;
2348 #ifndef OPENSSL_NO_COMP
2349 if (s->expand != NULL)
2351 COMP_CTX_free(s->expand);
2354 if (s->compress != NULL)
2356 COMP_CTX_free(s->compress);
2362 /* Fix this function so that it takes an optional type parameter */
2363 X509 *SSL_get_certificate(const SSL *s)
2365 if (s->cert != NULL)
2366 return(s->cert->key->x509);
2371 /* Fix this function so that it takes an optional type parameter */
2372 EVP_PKEY *SSL_get_privatekey(SSL *s)
2374 if (s->cert != NULL)
2375 return(s->cert->key->privatekey);
2380 SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2382 if ((s->session != NULL) && (s->session->cipher != NULL))
2383 return(s->session->cipher);
2386 #ifdef OPENSSL_NO_COMP
2387 const void *SSL_get_current_compression(SSL *s)
2391 const void *SSL_get_current_expansion(SSL *s)
2397 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2399 if (s->compress != NULL)
2400 return(s->compress->meth);
2404 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2406 if (s->expand != NULL)
2407 return(s->expand->meth);
2412 int ssl_init_wbio_buffer(SSL *s,int push)
2416 if (s->bbio == NULL)
2418 bbio=BIO_new(BIO_f_buffer());
2419 if (bbio == NULL) return(0);
2425 if (s->bbio == s->wbio)
2426 s->wbio=BIO_pop(s->wbio);
2428 (void)BIO_reset(bbio);
2429 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2430 if (!BIO_set_read_buffer_size(bbio,1))
2432 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2437 if (s->wbio != bbio)
2438 s->wbio=BIO_push(bbio,s->wbio);
2442 if (s->wbio == bbio)
2443 s->wbio=BIO_pop(bbio);
2448 void ssl_free_wbio_buffer(SSL *s)
2450 if (s->bbio == NULL) return;
2452 if (s->bbio == s->wbio)
2454 /* remove buffering */
2455 s->wbio=BIO_pop(s->wbio);
2456 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2457 assert(s->wbio != NULL);
2464 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2466 ctx->quiet_shutdown=mode;
2469 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2471 return(ctx->quiet_shutdown);
2474 void SSL_set_quiet_shutdown(SSL *s,int mode)
2476 s->quiet_shutdown=mode;
2479 int SSL_get_quiet_shutdown(const SSL *s)
2481 return(s->quiet_shutdown);
2484 void SSL_set_shutdown(SSL *s,int mode)
2489 int SSL_get_shutdown(const SSL *s)
2491 return(s->shutdown);
2494 int SSL_version(const SSL *s)
2499 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2504 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
2506 if (ssl->ctx == ctx)
2509 ctx = ssl->initial_ctx;
2510 if (ssl->cert != NULL)
2511 ssl_cert_free(ssl->cert);
2512 ssl->cert = ssl_cert_dup(ctx->cert);
2513 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
2514 if (ssl->ctx != NULL)
2515 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2520 #ifndef OPENSSL_NO_STDIO
2521 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2523 return(X509_STORE_set_default_paths(ctx->cert_store));
2526 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2529 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
2533 void SSL_set_info_callback(SSL *ssl,
2534 void (*cb)(const SSL *ssl,int type,int val))
2536 ssl->info_callback=cb;
2539 /* One compiler (Diab DCC) doesn't like argument names in returned
2540 function pointer. */
2541 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
2543 return ssl->info_callback;
2546 int SSL_state(const SSL *ssl)
2551 void SSL_set_verify_result(SSL *ssl,long arg)
2553 ssl->verify_result=arg;
2556 long SSL_get_verify_result(const SSL *ssl)
2558 return(ssl->verify_result);
2561 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2562 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2564 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2565 new_func, dup_func, free_func);
2568 int SSL_set_ex_data(SSL *s,int idx,void *arg)
2570 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2573 void *SSL_get_ex_data(const SSL *s,int idx)
2575 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2578 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2579 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2581 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2582 new_func, dup_func, free_func);
2585 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2587 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2590 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
2592 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2600 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2602 return(ctx->cert_store);
2605 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2607 if (ctx->cert_store != NULL)
2608 X509_STORE_free(ctx->cert_store);
2609 ctx->cert_store=store;
2612 int SSL_want(const SSL *s)
2618 * \brief Set the callback for generating temporary RSA keys.
2619 * \param ctx the SSL context.
2620 * \param cb the callback
2623 #ifndef OPENSSL_NO_RSA
2624 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2628 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2631 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2635 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2641 * \brief The RSA temporary key callback function.
2642 * \param ssl the SSL session.
2643 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2644 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2645 * of the required key in bits.
2646 * \return the temporary RSA key.
2647 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2650 RSA *cb(SSL *ssl,int is_export,int keylength)
2655 * \brief Set the callback for generating temporary DH keys.
2656 * \param ctx the SSL context.
2657 * \param dh the callback
2660 #ifndef OPENSSL_NO_DH
2661 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2664 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2667 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2670 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2674 #ifndef OPENSSL_NO_ECDH
2675 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2678 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2681 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2684 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2688 #ifndef OPENSSL_NO_PSK
2689 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
2691 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
2693 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
2696 if (ctx->psk_identity_hint != NULL)
2697 OPENSSL_free(ctx->psk_identity_hint);
2698 if (identity_hint != NULL)
2700 ctx->psk_identity_hint = BUF_strdup(identity_hint);
2701 if (ctx->psk_identity_hint == NULL)
2705 ctx->psk_identity_hint = NULL;
2709 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
2714 if (s->session == NULL)
2715 return 1; /* session not created yet, ignored */
2717 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
2719 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
2722 if (s->session->psk_identity_hint != NULL)
2723 OPENSSL_free(s->session->psk_identity_hint);
2724 if (identity_hint != NULL)
2726 s->session->psk_identity_hint = BUF_strdup(identity_hint);
2727 if (s->session->psk_identity_hint == NULL)
2731 s->session->psk_identity_hint = NULL;
2735 const char *SSL_get_psk_identity_hint(const SSL *s)
2737 if (s == NULL || s->session == NULL)
2739 return(s->session->psk_identity_hint);
2742 const char *SSL_get_psk_identity(const SSL *s)
2744 if (s == NULL || s->session == NULL)
2746 return(s->session->psk_identity);
2750 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))
2752 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2754 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))
2756 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2761 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2762 #include "../crypto/bio/bss_file.c"
2765 IMPLEMENT_STACK_OF(SSL_CIPHER)
2766 IMPLEMENT_STACK_OF(SSL_COMP)